ath10k: mac80211 driver for Qualcomm Atheros 802.11ac CQA98xx devices

Here's a new mac80211 driver for Qualcomm Atheros 802.11ac QCA98xx devices.
A major difference from ath9k is that there's now a firmware and
that's why we had to implement a new driver.

The wiki page for the driver is:

http://wireless.kernel.org/en/users/Drivers/ath10k

The driver has had many authors, they are listed here alphabetically:

Bartosz Markowski <bartosz.markowski@tieto.com>
Janusz Dziedzic <janusz.dziedzic@tieto.com>
Kalle Valo <kvalo@qca.qualcomm.com>
Marek Kwaczynski <marek.kwaczynski@tieto.com>
Marek Puzyniak <marek.puzyniak@tieto.com>
Michal Kazior <michal.kazior@tieto.com>
Sujith Manoharan <c_manoha@qca.qualcomm.com>

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

drivers/net/wireless/ath/Kconfig

@@ -31,5 +31,6 @@ source "drivers/net/wireless/ath/carl9170/Kconfig"
 source "drivers/net/wireless/ath/ath6kl/Kconfig"
 source "drivers/net/wireless/ath/ar5523/Kconfig"
 source "drivers/net/wireless/ath/wil6210/Kconfig"
+source "drivers/net/wireless/ath/ath10k/Kconfig"
 
 endif

drivers/net/wireless/ath/Makefile

@@ -4,6 +4,7 @@ obj-$(CONFIG_CARL9170)		+= carl9170/
 obj-$(CONFIG_ATH6KL)		+= ath6kl/
 obj-$(CONFIG_AR5523)		+= ar5523/
 obj-$(CONFIG_WIL6210)		+= wil6210/
+obj-$(CONFIG_ATH10K)		+= ath10k/
 
 obj-$(CONFIG_ATH_COMMON)	+= ath.o
 

drivers/net/wireless/ath/ath10k/Kconfig

@@ -0,0 +1,39 @@
+config ATH10K
+        tristate "Atheros 802.11ac wireless cards support"
+        depends on MAC80211
+	select ATH_COMMON
+        ---help---
+          This module adds support for wireless adapters based on
+          Atheros IEEE 802.11ac family of chipsets.
+
+          If you choose to build a module, it'll be called ath10k.
+
+config ATH10K_PCI
+	tristate "Atheros ath10k PCI support"
+	depends on ATH10K && PCI
+	---help---
+	  This module adds support for PCIE bus
+
+config ATH10K_DEBUG
+	bool "Atheros ath10k debugging"
+	depends on ATH10K
+	---help---
+	  Enables debug support
+
+	  If unsure, say Y to make it easier to debug problems.
+
+config ATH10K_DEBUGFS
+	bool "Atheros ath10k debugfs support"
+	depends on ATH10K
+	---help---
+	  Enabled debugfs support
+
+	  If unsure, say Y to make it easier to debug problems.
+
+config ATH10K_TRACING
+	bool "Atheros ath10k tracing support"
+	depends on ATH10K
+	depends on EVENT_TRACING
+	---help---
+	  Select this to ath10k use tracing infrastructure.
+

drivers/net/wireless/ath/ath10k/Makefile

@@ -0,0 +1,20 @@
+obj-$(CONFIG_ATH10K) += ath10k_core.o
+ath10k_core-y += mac.o \
+		 debug.o \
+		 core.o \
+		 htc.o \
+		 htt.o \
+		 htt_rx.o \
+		 htt_tx.o \
+		 txrx.o \
+		 wmi.o \
+		 bmi.o
+
+ath10k_core-$(CONFIG_ATH10K_TRACING) += trace.o
+
+obj-$(CONFIG_ATH10K_PCI) += ath10k_pci.o
+ath10k_pci-y += pci.o \
+		ce.o
+
+# for tracing framework to find trace.h
+CFLAGS_trace.o := -I$(src)

drivers/net/wireless/ath/ath10k/bmi.c

@@ -0,0 +1,295 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "bmi.h"
+#include "hif.h"
+#include "debug.h"
+#include "htc.h"
+
+int ath10k_bmi_done(struct ath10k *ar)
+{
+	struct bmi_cmd cmd;
+	u32 cmdlen = sizeof(cmd.id) + sizeof(cmd.done);
+	int ret;
+
+	if (ar->bmi.done_sent) {
+		ath10k_dbg(ATH10K_DBG_CORE, "%s skipped\n", __func__);
+		return 0;
+	}
+
+	ar->bmi.done_sent = true;
+	cmd.id = __cpu_to_le32(BMI_DONE);
+
+	ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, cmdlen, NULL, NULL);
+	if (ret) {
+		ath10k_warn("unable to write to the device: %d\n", ret);
+		return ret;
+	}
+
+	ath10k_dbg(ATH10K_DBG_CORE, "BMI done\n");
+	return 0;
+}
+
+int ath10k_bmi_get_target_info(struct ath10k *ar,
+			       struct bmi_target_info *target_info)
+{
+	struct bmi_cmd cmd;
+	union bmi_resp resp;
+	u32 cmdlen = sizeof(cmd.id) + sizeof(cmd.get_target_info);
+	u32 resplen = sizeof(resp.get_target_info);
+	int ret;
+
+	if (ar->bmi.done_sent) {
+		ath10k_warn("BMI Get Target Info Command disallowed\n");
+		return -EBUSY;
+	}
+
+	cmd.id = __cpu_to_le32(BMI_GET_TARGET_INFO);
+
+	ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, cmdlen, &resp, &resplen);
+	if (ret) {
+		ath10k_warn("unable to get target info from device\n");
+		return ret;
+	}
+
+	if (resplen < sizeof(resp.get_target_info)) {
+		ath10k_warn("invalid get_target_info response length (%d)\n",
+			    resplen);
+		return -EIO;
+	}
+
+	target_info->version = __le32_to_cpu(resp.get_target_info.version);
+	target_info->type    = __le32_to_cpu(resp.get_target_info.type);
+	return 0;
+}
+
+int ath10k_bmi_read_memory(struct ath10k *ar,
+			   u32 address, void *buffer, u32 length)
+{
+	struct bmi_cmd cmd;
+	union bmi_resp resp;
+	u32 cmdlen = sizeof(cmd.id) + sizeof(cmd.read_mem);
+	u32 rxlen;
+	int ret;
+
+	if (ar->bmi.done_sent) {
+		ath10k_warn("command disallowed\n");
+		return -EBUSY;
+	}
+
+	ath10k_dbg(ATH10K_DBG_CORE,
+		   "%s: (device: 0x%p, address: 0x%x, length: %d)\n",
+		   __func__, ar, address, length);
+
+	while (length) {
+		rxlen = min_t(u32, length, BMI_MAX_DATA_SIZE);
+
+		cmd.id            = __cpu_to_le32(BMI_READ_MEMORY);
+		cmd.read_mem.addr = __cpu_to_le32(address);
+		cmd.read_mem.len  = __cpu_to_le32(rxlen);
+
+		ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, cmdlen,
+						  &resp, &rxlen);
+		if (ret) {
+			ath10k_warn("unable to read from the device\n");
+			return ret;
+		}
+
+		memcpy(buffer, resp.read_mem.payload, rxlen);
+		address += rxlen;
+		buffer  += rxlen;
+		length  -= rxlen;
+	}
+
+	return 0;
+}
+
+int ath10k_bmi_write_memory(struct ath10k *ar,
+			    u32 address, const void *buffer, u32 length)
+{
+	struct bmi_cmd cmd;
+	u32 hdrlen = sizeof(cmd.id) + sizeof(cmd.write_mem);
+	u32 txlen;
+	int ret;
+
+	if (ar->bmi.done_sent) {
+		ath10k_warn("command disallowed\n");
+		return -EBUSY;
+	}
+
+	ath10k_dbg(ATH10K_DBG_CORE,
+		   "%s: (device: 0x%p, address: 0x%x, length: %d)\n",
+		   __func__, ar, address, length);
+
+	while (length) {
+		txlen = min(length, BMI_MAX_DATA_SIZE - hdrlen);
+
+		/* copy before roundup to avoid reading beyond buffer*/
+		memcpy(cmd.write_mem.payload, buffer, txlen);
+		txlen = roundup(txlen, 4);
+
+		cmd.id             = __cpu_to_le32(BMI_WRITE_MEMORY);
+		cmd.write_mem.addr = __cpu_to_le32(address);
+		cmd.write_mem.len  = __cpu_to_le32(txlen);
+
+		ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, hdrlen + txlen,
+						  NULL, NULL);
+		if (ret) {
+			ath10k_warn("unable to write to the device\n");
+			return ret;
+		}
+
+		/* fixup roundup() so `length` zeroes out for last chunk */
+		txlen = min(txlen, length);
+
+		address += txlen;
+		buffer  += txlen;
+		length  -= txlen;
+	}
+
+	return 0;
+}
+
+int ath10k_bmi_execute(struct ath10k *ar, u32 address, u32 *param)
+{
+	struct bmi_cmd cmd;
+	union bmi_resp resp;
+	u32 cmdlen = sizeof(cmd.id) + sizeof(cmd.execute);
+	u32 resplen = sizeof(resp.execute);
+	int ret;
+
+	if (ar->bmi.done_sent) {
+		ath10k_warn("command disallowed\n");
+		return -EBUSY;
+	}
+
+	ath10k_dbg(ATH10K_DBG_CORE,
+		   "%s: (device: 0x%p, address: 0x%x, param: %d)\n",
+		   __func__, ar, address, *param);
+
+	cmd.id            = __cpu_to_le32(BMI_EXECUTE);
+	cmd.execute.addr  = __cpu_to_le32(address);
+	cmd.execute.param = __cpu_to_le32(*param);
+
+	ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, cmdlen, &resp, &resplen);
+	if (ret) {
+		ath10k_warn("unable to read from the device\n");
+		return ret;
+	}
+
+	if (resplen < sizeof(resp.execute)) {
+		ath10k_warn("invalid execute response length (%d)\n",
+			    resplen);
+		return ret;
+	}
+
+	*param = __le32_to_cpu(resp.execute.result);
+	return 0;
+}
+
+int ath10k_bmi_lz_data(struct ath10k *ar, const void *buffer, u32 length)
+{
+	struct bmi_cmd cmd;
+	u32 hdrlen = sizeof(cmd.id) + sizeof(cmd.lz_data);
+	u32 txlen;
+	int ret;
+
+	if (ar->bmi.done_sent) {
+		ath10k_warn("command disallowed\n");
+		return -EBUSY;
+	}
+
+	while (length) {
+		txlen = min(length, BMI_MAX_DATA_SIZE - hdrlen);
+
+		WARN_ON_ONCE(txlen & 3);
+
+		cmd.id          = __cpu_to_le32(BMI_LZ_DATA);
+		cmd.lz_data.len = __cpu_to_le32(txlen);
+		memcpy(cmd.lz_data.payload, buffer, txlen);
+
+		ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, hdrlen + txlen,
+						  NULL, NULL);
+		if (ret) {
+			ath10k_warn("unable to write to the device\n");
+			return ret;
+		}
+
+		buffer += txlen;
+		length -= txlen;
+	}
+
+	return 0;
+}
+
+int ath10k_bmi_lz_stream_start(struct ath10k *ar, u32 address)
+{
+	struct bmi_cmd cmd;
+	u32 cmdlen = sizeof(cmd.id) + sizeof(cmd.lz_start);
+	int ret;
+
+	if (ar->bmi.done_sent) {
+		ath10k_warn("command disallowed\n");
+		return -EBUSY;
+	}
+
+	cmd.id            = __cpu_to_le32(BMI_LZ_STREAM_START);
+	cmd.lz_start.addr = __cpu_to_le32(address);
+
+	ret = ath10k_hif_exchange_bmi_msg(ar, &cmd, cmdlen, NULL, NULL);
+	if (ret) {
+		ath10k_warn("unable to Start LZ Stream to the device\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+int ath10k_bmi_fast_download(struct ath10k *ar,
+			     u32 address, const void *buffer, u32 length)
+{
+	u8 trailer[4] = {};
+	u32 head_len = rounddown(length, 4);
+	u32 trailer_len = length - head_len;
+	int ret;
+
+	ret = ath10k_bmi_lz_stream_start(ar, address);
+	if (ret)
+		return ret;
+
+	/* copy the last word into a zero padded buffer */
+	if (trailer_len > 0)
+		memcpy(trailer, buffer + head_len, trailer_len);
+
+	ret = ath10k_bmi_lz_data(ar, buffer, head_len);
+	if (ret)
+		return ret;
+
+	if (trailer_len > 0)
+		ret = ath10k_bmi_lz_data(ar, trailer, 4);
+
+	if (ret != 0)
+		return ret;
+
+	/*
+	 * Close compressed stream and open a new (fake) one.
+	 * This serves mainly to flush Target caches.
+	 */
+	ret = ath10k_bmi_lz_stream_start(ar, 0x00);
+
+	return ret;
+}

drivers/net/wireless/ath/ath10k/bmi.h

@@ -0,0 +1,224 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _BMI_H_
+#define _BMI_H_
+
+#include "core.h"
+
+/*
+ * Bootloader Messaging Interface (BMI)
+ *
+ * BMI is a very simple messaging interface used during initialization
+ * to read memory, write memory, execute code, and to define an
+ * application entry PC.
+ *
+ * It is used to download an application to QCA988x, to provide
+ * patches to code that is already resident on QCA988x, and generally
+ * to examine and modify state.  The Host has an opportunity to use
+ * BMI only once during bootup.  Once the Host issues a BMI_DONE
+ * command, this opportunity ends.
+ *
+ * The Host writes BMI requests to mailbox0, and reads BMI responses
+ * from mailbox0.   BMI requests all begin with a command
+ * (see below for specific commands), and are followed by
+ * command-specific data.
+ *
+ * Flow control:
+ * The Host can only issue a command once the Target gives it a
+ * "BMI Command Credit", using AR8K Counter #4.  As soon as the
+ * Target has completed a command, it issues another BMI Command
+ * Credit (so the Host can issue the next command).
+ *
+ * BMI handles all required Target-side cache flushing.
+ */
+
+/* Maximum data size used for BMI transfers */
+#define BMI_MAX_DATA_SIZE	256
+
+/* len = cmd + addr + length */
+#define BMI_MAX_CMDBUF_SIZE (BMI_MAX_DATA_SIZE + \
+			sizeof(u32) + \
+			sizeof(u32) + \
+			sizeof(u32))
+
+/* BMI Commands */
+
+enum bmi_cmd_id {
+	BMI_NO_COMMAND          = 0,
+	BMI_DONE                = 1,
+	BMI_READ_MEMORY         = 2,
+	BMI_WRITE_MEMORY        = 3,
+	BMI_EXECUTE             = 4,
+	BMI_SET_APP_START       = 5,
+	BMI_READ_SOC_REGISTER   = 6,
+	BMI_READ_SOC_WORD       = 6,
+	BMI_WRITE_SOC_REGISTER  = 7,
+	BMI_WRITE_SOC_WORD      = 7,
+	BMI_GET_TARGET_ID       = 8,
+	BMI_GET_TARGET_INFO     = 8,
+	BMI_ROMPATCH_INSTALL    = 9,
+	BMI_ROMPATCH_UNINSTALL  = 10,
+	BMI_ROMPATCH_ACTIVATE   = 11,
+	BMI_ROMPATCH_DEACTIVATE = 12,
+	BMI_LZ_STREAM_START     = 13, /* should be followed by LZ_DATA */
+	BMI_LZ_DATA             = 14,
+	BMI_NVRAM_PROCESS       = 15,
+};
+
+#define BMI_NVRAM_SEG_NAME_SZ 16
+
+struct bmi_cmd {
+	__le32 id; /* enum bmi_cmd_id */
+	union {
+		struct {
+		} done;
+		struct {
+			__le32 addr;
+			__le32 len;
+		} read_mem;
+		struct {
+			__le32 addr;
+			__le32 len;
+			u8 payload[0];
+		} write_mem;
+		struct {
+			__le32 addr;
+			__le32 param;
+		} execute;
+		struct {
+			__le32 addr;
+		} set_app_start;
+		struct {
+			__le32 addr;
+		} read_soc_reg;
+		struct {
+			__le32 addr;
+			__le32 value;
+		} write_soc_reg;
+		struct {
+		} get_target_info;
+		struct {
+			__le32 rom_addr;
+			__le32 ram_addr; /* or value */
+			__le32 size;
+			__le32 activate; /* 0=install, but dont activate */
+		} rompatch_install;
+		struct {
+			__le32 patch_id;
+		} rompatch_uninstall;
+		struct {
+			__le32 count;
+			__le32 patch_ids[0]; /* length of @count */
+		} rompatch_activate;
+		struct {
+			__le32 count;
+			__le32 patch_ids[0]; /* length of @count */
+		} rompatch_deactivate;
+		struct {
+			__le32 addr;
+		} lz_start;
+		struct {
+			__le32 len; /* max BMI_MAX_DATA_SIZE */
+			u8 payload[0]; /* length of @len */
+		} lz_data;
+		struct {
+			u8 name[BMI_NVRAM_SEG_NAME_SZ];
+		} nvram_process;
+		u8 payload[BMI_MAX_CMDBUF_SIZE];
+	};
+} __packed;
+
+union bmi_resp {
+	struct {
+		u8 payload[0];
+	} read_mem;
+	struct {
+		__le32 result;
+	} execute;
+	struct {
+		__le32 value;
+	} read_soc_reg;
+	struct {
+		__le32 len;
+		__le32 version;
+		__le32 type;
+	} get_target_info;
+	struct {
+		__le32 patch_id;
+	} rompatch_install;
+	struct {
+		__le32 patch_id;
+	} rompatch_uninstall;
+	struct {
+		/* 0 = nothing executed
+		 * otherwise = NVRAM segment return value */
+		__le32 result;
+	} nvram_process;
+	u8 payload[BMI_MAX_CMDBUF_SIZE];
+} __packed;
+
+struct bmi_target_info {
+	u32 version;
+	u32 type;
+};
+
+
+/* in msec */
+#define BMI_COMMUNICATION_TIMEOUT_HZ (1*HZ)
+
+#define BMI_CE_NUM_TO_TARG 0
+#define BMI_CE_NUM_TO_HOST 1
+
+int ath10k_bmi_done(struct ath10k *ar);
+int ath10k_bmi_get_target_info(struct ath10k *ar,
+			       struct bmi_target_info *target_info);
+int ath10k_bmi_read_memory(struct ath10k *ar, u32 address,
+			   void *buffer, u32 length);
+int ath10k_bmi_write_memory(struct ath10k *ar, u32 address,
+			    const void *buffer, u32 length);
+
+#define ath10k_bmi_read32(ar, item, val)				\
+	({								\
+		int ret;						\
+		u32 addr;						\
+		__le32 tmp;						\
+									\
+		addr = host_interest_item_address(HI_ITEM(item));	\
+		ret = ath10k_bmi_read_memory(ar, addr, (u8 *)&tmp, 4); \
+		*val = __le32_to_cpu(tmp);				\
+		ret;							\
+	 })
+
+#define ath10k_bmi_write32(ar, item, val)				\
+	({								\
+		int ret;						\
+		u32 address;						\
+		__le32 v = __cpu_to_le32(val);				\
+									\
+		address = host_interest_item_address(HI_ITEM(item));	\
+		ret = ath10k_bmi_write_memory(ar, address,		\
+					      (u8 *)&v, sizeof(v));	\
+		ret;							\
+	})
+
+int ath10k_bmi_execute(struct ath10k *ar, u32 address, u32 *param);
+int ath10k_bmi_lz_stream_start(struct ath10k *ar, u32 address);
+int ath10k_bmi_lz_data(struct ath10k *ar, const void *buffer, u32 length);
+int ath10k_bmi_fast_download(struct ath10k *ar, u32 address,
+			     const void *buffer, u32 length);
+#endif /* _BMI_H_ */

drivers/net/wireless/ath/ath10k/ce.c

@@ -0,0 +1,1189 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "hif.h"
+#include "pci.h"
+#include "ce.h"
+#include "debug.h"
+
+/*
+ * Support for Copy Engine hardware, which is mainly used for
+ * communication between Host and Target over a PCIe interconnect.
+ */
+
+/*
+ * A single CopyEngine (CE) comprises two "rings":
+ *   a source ring
+ *   a destination ring
+ *
+ * Each ring consists of a number of descriptors which specify
+ * an address, length, and meta-data.
+ *
+ * Typically, one side of the PCIe interconnect (Host or Target)
+ * controls one ring and the other side controls the other ring.
+ * The source side chooses when to initiate a transfer and it
+ * chooses what to send (buffer address, length). The destination
+ * side keeps a supply of "anonymous receive buffers" available and
+ * it handles incoming data as it arrives (when the destination
+ * recieves an interrupt).
+ *
+ * The sender may send a simple buffer (address/length) or it may
+ * send a small list of buffers.  When a small list is sent, hardware
+ * "gathers" these and they end up in a single destination buffer
+ * with a single interrupt.
+ *
+ * There are several "contexts" managed by this layer -- more, it
+ * may seem -- than should be needed. These are provided mainly for
+ * maximum flexibility and especially to facilitate a simpler HIF
+ * implementation. There are per-CopyEngine recv, send, and watermark
+ * contexts. These are supplied by the caller when a recv, send,
+ * or watermark handler is established and they are echoed back to
+ * the caller when the respective callbacks are invoked. There is
+ * also a per-transfer context supplied by the caller when a buffer
+ * (or sendlist) is sent and when a buffer is enqueued for recv.
+ * These per-transfer contexts are echoed back to the caller when
+ * the buffer is sent/received.
+ */
+
+static inline void ath10k_ce_dest_ring_write_index_set(struct ath10k *ar,
+						       u32 ce_ctrl_addr,
+						       unsigned int n)
+{
+	ath10k_pci_write32(ar, ce_ctrl_addr + DST_WR_INDEX_ADDRESS, n);
+}
+
+static inline u32 ath10k_ce_dest_ring_write_index_get(struct ath10k *ar,
+						      u32 ce_ctrl_addr)
+{
+	return ath10k_pci_read32(ar, ce_ctrl_addr + DST_WR_INDEX_ADDRESS);
+}
+
+static inline void ath10k_ce_src_ring_write_index_set(struct ath10k *ar,
+						      u32 ce_ctrl_addr,
+						      unsigned int n)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	void __iomem *indicator_addr;
+
+	if (!test_bit(ATH10K_PCI_FEATURE_HW_1_0_WARKAROUND, ar_pci->features)) {
+		ath10k_pci_write32(ar, ce_ctrl_addr + SR_WR_INDEX_ADDRESS, n);
+		return;
+	}
+
+	/* workaround for QCA988x_1.0 HW CE */
+	indicator_addr = ar_pci->mem + ce_ctrl_addr + DST_WATERMARK_ADDRESS;
+
+	if (ce_ctrl_addr == ath10k_ce_base_address(CDC_WAR_DATA_CE)) {
+		iowrite32((CDC_WAR_MAGIC_STR | n), indicator_addr);
+	} else {
+		unsigned long irq_flags;
+		local_irq_save(irq_flags);
+		iowrite32(1, indicator_addr);
+
+		/*
+		 * PCIE write waits for ACK in IPQ8K, there is no
+		 * need to read back value.
+		 */
+		(void)ioread32(indicator_addr);
+		(void)ioread32(indicator_addr); /* conservative */
+
+		ath10k_pci_write32(ar, ce_ctrl_addr + SR_WR_INDEX_ADDRESS, n);
+
+		iowrite32(0, indicator_addr);
+		local_irq_restore(irq_flags);
+	}
+}
+
+static inline u32 ath10k_ce_src_ring_write_index_get(struct ath10k *ar,
+						     u32 ce_ctrl_addr)
+{
+	return ath10k_pci_read32(ar, ce_ctrl_addr + SR_WR_INDEX_ADDRESS);
+}
+
+static inline u32 ath10k_ce_src_ring_read_index_get(struct ath10k *ar,
+						    u32 ce_ctrl_addr)
+{
+	return ath10k_pci_read32(ar, ce_ctrl_addr + CURRENT_SRRI_ADDRESS);
+}
+
+static inline void ath10k_ce_src_ring_base_addr_set(struct ath10k *ar,
+						    u32 ce_ctrl_addr,
+						    unsigned int addr)
+{
+	ath10k_pci_write32(ar, ce_ctrl_addr + SR_BA_ADDRESS, addr);
+}
+
+static inline void ath10k_ce_src_ring_size_set(struct ath10k *ar,
+					       u32 ce_ctrl_addr,
+					       unsigned int n)
+{
+	ath10k_pci_write32(ar, ce_ctrl_addr + SR_SIZE_ADDRESS, n);
+}
+
+static inline void ath10k_ce_src_ring_dmax_set(struct ath10k *ar,
+					       u32 ce_ctrl_addr,
+					       unsigned int n)
+{
+	u32 ctrl1_addr = ath10k_pci_read32((ar),
+					   (ce_ctrl_addr) + CE_CTRL1_ADDRESS);
+
+	ath10k_pci_write32(ar, ce_ctrl_addr + CE_CTRL1_ADDRESS,
+			   (ctrl1_addr &  ~CE_CTRL1_DMAX_LENGTH_MASK) |
+			   CE_CTRL1_DMAX_LENGTH_SET(n));
+}
+
+static inline void ath10k_ce_src_ring_byte_swap_set(struct ath10k *ar,
+						    u32 ce_ctrl_addr,
+						    unsigned int n)
+{
+	u32 ctrl1_addr = ath10k_pci_read32(ar, ce_ctrl_addr + CE_CTRL1_ADDRESS);
+
+	ath10k_pci_write32(ar, ce_ctrl_addr + CE_CTRL1_ADDRESS,
+			   (ctrl1_addr & ~CE_CTRL1_SRC_RING_BYTE_SWAP_EN_MASK) |
+			   CE_CTRL1_SRC_RING_BYTE_SWAP_EN_SET(n));
+}
+
+static inline void ath10k_ce_dest_ring_byte_swap_set(struct ath10k *ar,
+						     u32 ce_ctrl_addr,
+						     unsigned int n)
+{
+	u32 ctrl1_addr = ath10k_pci_read32(ar, ce_ctrl_addr + CE_CTRL1_ADDRESS);
+
+	ath10k_pci_write32(ar, ce_ctrl_addr + CE_CTRL1_ADDRESS,
+			   (ctrl1_addr & ~CE_CTRL1_DST_RING_BYTE_SWAP_EN_MASK) |
+			   CE_CTRL1_DST_RING_BYTE_SWAP_EN_SET(n));
+}
+
+static inline u32 ath10k_ce_dest_ring_read_index_get(struct ath10k *ar,
+						     u32 ce_ctrl_addr)
+{
+	return ath10k_pci_read32(ar, ce_ctrl_addr + CURRENT_DRRI_ADDRESS);
+}
+
+static inline void ath10k_ce_dest_ring_base_addr_set(struct ath10k *ar,
+						     u32 ce_ctrl_addr,
+						     u32 addr)
+{
+	ath10k_pci_write32(ar, ce_ctrl_addr + DR_BA_ADDRESS, addr);
+}
+
+static inline void ath10k_ce_dest_ring_size_set(struct ath10k *ar,
+						u32 ce_ctrl_addr,
+						unsigned int n)
+{
+	ath10k_pci_write32(ar, ce_ctrl_addr + DR_SIZE_ADDRESS, n);
+}
+
+static inline void ath10k_ce_src_ring_highmark_set(struct ath10k *ar,
+						   u32 ce_ctrl_addr,
+						   unsigned int n)
+{
+	u32 addr = ath10k_pci_read32(ar, ce_ctrl_addr + SRC_WATERMARK_ADDRESS);
+
+	ath10k_pci_write32(ar, ce_ctrl_addr + SRC_WATERMARK_ADDRESS,
+			   (addr & ~SRC_WATERMARK_HIGH_MASK) |
+			   SRC_WATERMARK_HIGH_SET(n));
+}
+
+static inline void ath10k_ce_src_ring_lowmark_set(struct ath10k *ar,
+						  u32 ce_ctrl_addr,
+						  unsigned int n)
+{
+	u32 addr = ath10k_pci_read32(ar, ce_ctrl_addr + SRC_WATERMARK_ADDRESS);
+
+	ath10k_pci_write32(ar, ce_ctrl_addr + SRC_WATERMARK_ADDRESS,
+			   (addr & ~SRC_WATERMARK_LOW_MASK) |
+			   SRC_WATERMARK_LOW_SET(n));
+}
+
+static inline void ath10k_ce_dest_ring_highmark_set(struct ath10k *ar,
+						    u32 ce_ctrl_addr,
+						    unsigned int n)
+{
+	u32 addr = ath10k_pci_read32(ar, ce_ctrl_addr + DST_WATERMARK_ADDRESS);
+
+	ath10k_pci_write32(ar, ce_ctrl_addr + DST_WATERMARK_ADDRESS,
+			   (addr & ~DST_WATERMARK_HIGH_MASK) |
+			   DST_WATERMARK_HIGH_SET(n));
+}
+
+static inline void ath10k_ce_dest_ring_lowmark_set(struct ath10k *ar,
+						   u32 ce_ctrl_addr,
+						   unsigned int n)
+{
+	u32 addr = ath10k_pci_read32(ar, ce_ctrl_addr + DST_WATERMARK_ADDRESS);
+
+	ath10k_pci_write32(ar, ce_ctrl_addr + DST_WATERMARK_ADDRESS,
+			   (addr & ~DST_WATERMARK_LOW_MASK) |
+			   DST_WATERMARK_LOW_SET(n));
+}
+
+static inline void ath10k_ce_copy_complete_inter_enable(struct ath10k *ar,
+							u32 ce_ctrl_addr)
+{
+	u32 host_ie_addr = ath10k_pci_read32(ar,
+					     ce_ctrl_addr + HOST_IE_ADDRESS);
+
+	ath10k_pci_write32(ar, ce_ctrl_addr + HOST_IE_ADDRESS,
+			   host_ie_addr | HOST_IE_COPY_COMPLETE_MASK);
+}
+
+static inline void ath10k_ce_copy_complete_intr_disable(struct ath10k *ar,
+							u32 ce_ctrl_addr)
+{
+	u32 host_ie_addr = ath10k_pci_read32(ar,
+					     ce_ctrl_addr + HOST_IE_ADDRESS);
+
+	ath10k_pci_write32(ar, ce_ctrl_addr + HOST_IE_ADDRESS,
+			   host_ie_addr & ~HOST_IE_COPY_COMPLETE_MASK);
+}
+
+static inline void ath10k_ce_watermark_intr_disable(struct ath10k *ar,
+						    u32 ce_ctrl_addr)
+{
+	u32 host_ie_addr = ath10k_pci_read32(ar,
+					     ce_ctrl_addr + HOST_IE_ADDRESS);
+
+	ath10k_pci_write32(ar, ce_ctrl_addr + HOST_IE_ADDRESS,
+			   host_ie_addr & ~CE_WATERMARK_MASK);
+}
+
+static inline void ath10k_ce_error_intr_enable(struct ath10k *ar,
+					       u32 ce_ctrl_addr)
+{
+	u32 misc_ie_addr = ath10k_pci_read32(ar,
+					     ce_ctrl_addr + MISC_IE_ADDRESS);
+
+	ath10k_pci_write32(ar, ce_ctrl_addr + MISC_IE_ADDRESS,
+			   misc_ie_addr | CE_ERROR_MASK);
+}
+
+static inline void ath10k_ce_engine_int_status_clear(struct ath10k *ar,
+						     u32 ce_ctrl_addr,
+						     unsigned int mask)
+{
+	ath10k_pci_write32(ar, ce_ctrl_addr + HOST_IS_ADDRESS, mask);
+}
+
+
+/*
+ * Guts of ath10k_ce_send, used by both ath10k_ce_send and
+ * ath10k_ce_sendlist_send.
+ * The caller takes responsibility for any needed locking.
+ */
+static int ath10k_ce_send_nolock(struct ce_state *ce_state,
+				 void *per_transfer_context,
+				 u32 buffer,
+				 unsigned int nbytes,
+				 unsigned int transfer_id,
+				 unsigned int flags)
+{
+	struct ath10k *ar = ce_state->ar;
+	struct ce_ring_state *src_ring = ce_state->src_ring;
+	struct ce_desc *desc, *sdesc;
+	unsigned int nentries_mask = src_ring->nentries_mask;
+	unsigned int sw_index = src_ring->sw_index;
+	unsigned int write_index = src_ring->write_index;
+	u32 ctrl_addr = ce_state->ctrl_addr;
+	u32 desc_flags = 0;
+	int ret = 0;
+
+	if (nbytes > ce_state->src_sz_max)
+		ath10k_warn("%s: send more we can (nbytes: %d, max: %d)\n",
+			    __func__, nbytes, ce_state->src_sz_max);
+
+	ath10k_pci_wake(ar);
+
+	if (unlikely(CE_RING_DELTA(nentries_mask,
+				   write_index, sw_index - 1) <= 0)) {
+		ret = -EIO;
+		goto exit;
+	}
+
+	desc = CE_SRC_RING_TO_DESC(src_ring->base_addr_owner_space,
+				   write_index);
+	sdesc = CE_SRC_RING_TO_DESC(src_ring->shadow_base, write_index);
+
+	desc_flags |= SM(transfer_id, CE_DESC_FLAGS_META_DATA);
+
+	if (flags & CE_SEND_FLAG_GATHER)
+		desc_flags |= CE_DESC_FLAGS_GATHER;
+	if (flags & CE_SEND_FLAG_BYTE_SWAP)
+		desc_flags |= CE_DESC_FLAGS_BYTE_SWAP;
+
+	sdesc->addr   = __cpu_to_le32(buffer);
+	sdesc->nbytes = __cpu_to_le16(nbytes);
+	sdesc->flags  = __cpu_to_le16(desc_flags);
+
+	*desc = *sdesc;
+
+	src_ring->per_transfer_context[write_index] = per_transfer_context;
+
+	/* Update Source Ring Write Index */
+	write_index = CE_RING_IDX_INCR(nentries_mask, write_index);
+
+	/* WORKAROUND */
+	if (!(flags & CE_SEND_FLAG_GATHER))
+		ath10k_ce_src_ring_write_index_set(ar, ctrl_addr, write_index);
+
+	src_ring->write_index = write_index;
+exit:
+	ath10k_pci_sleep(ar);
+	return ret;
+}
+
+int ath10k_ce_send(struct ce_state *ce_state,
+		   void *per_transfer_context,
+		   u32 buffer,
+		   unsigned int nbytes,
+		   unsigned int transfer_id,
+		   unsigned int flags)
+{
+	struct ath10k *ar = ce_state->ar;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int ret;
+
+	spin_lock_bh(&ar_pci->ce_lock);
+	ret = ath10k_ce_send_nolock(ce_state, per_transfer_context,
+				    buffer, nbytes, transfer_id, flags);
+	spin_unlock_bh(&ar_pci->ce_lock);
+
+	return ret;
+}
+
+void ath10k_ce_sendlist_buf_add(struct ce_sendlist *sendlist, u32 buffer,
+				unsigned int nbytes, u32 flags)
+{
+	unsigned int num_items = sendlist->num_items;
+	struct ce_sendlist_item *item;
+
+	item = &sendlist->item[num_items];
+	item->data = buffer;
+	item->u.nbytes = nbytes;
+	item->flags = flags;
+	sendlist->num_items++;
+}
+
+int ath10k_ce_sendlist_send(struct ce_state *ce_state,
+			    void *per_transfer_context,
+			    struct ce_sendlist *sendlist,
+			    unsigned int transfer_id)
+{
+	struct ce_ring_state *src_ring = ce_state->src_ring;
+	struct ce_sendlist_item *item;
+	struct ath10k *ar = ce_state->ar;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	unsigned int nentries_mask = src_ring->nentries_mask;
+	unsigned int num_items = sendlist->num_items;
+	unsigned int sw_index;
+	unsigned int write_index;
+	int i, delta, ret = -ENOMEM;
+
+	spin_lock_bh(&ar_pci->ce_lock);
+
+	sw_index = src_ring->sw_index;
+	write_index = src_ring->write_index;
+
+	delta = CE_RING_DELTA(nentries_mask, write_index, sw_index - 1);
+
+	if (delta >= num_items) {
+		/*
+		 * Handle all but the last item uniformly.
+		 */
+		for (i = 0; i < num_items - 1; i++) {
+			item = &sendlist->item[i];
+			ret = ath10k_ce_send_nolock(ce_state,
+						    CE_SENDLIST_ITEM_CTXT,
+						    (u32) item->data,
+						    item->u.nbytes, transfer_id,
+						    item->flags |
+						    CE_SEND_FLAG_GATHER);
+			if (ret)
+				ath10k_warn("CE send failed for item: %d\n", i);
+		}
+		/*
+		 * Provide valid context pointer for final item.
+		 */
+		item = &sendlist->item[i];
+		ret = ath10k_ce_send_nolock(ce_state, per_transfer_context,
+					    (u32) item->data, item->u.nbytes,
+					    transfer_id, item->flags);
+		if (ret)
+			ath10k_warn("CE send failed for last item: %d\n", i);
+	}
+
+	spin_unlock_bh(&ar_pci->ce_lock);
+
+	return ret;
+}
+
+int ath10k_ce_recv_buf_enqueue(struct ce_state *ce_state,
+			       void *per_recv_context,
+			       u32 buffer)
+{
+	struct ce_ring_state *dest_ring = ce_state->dest_ring;
+	u32 ctrl_addr = ce_state->ctrl_addr;
+	struct ath10k *ar = ce_state->ar;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	unsigned int nentries_mask = dest_ring->nentries_mask;
+	unsigned int write_index;
+	unsigned int sw_index;
+	int ret;
+
+	spin_lock_bh(&ar_pci->ce_lock);
+	write_index = dest_ring->write_index;
+	sw_index = dest_ring->sw_index;
+
+	ath10k_pci_wake(ar);
+
+	if (CE_RING_DELTA(nentries_mask, write_index, sw_index - 1) > 0) {
+		struct ce_desc *base = dest_ring->base_addr_owner_space;
+		struct ce_desc *desc = CE_DEST_RING_TO_DESC(base, write_index);
+
+		/* Update destination descriptor */
+		desc->addr    = __cpu_to_le32(buffer);
+		desc->nbytes = 0;
+
+		dest_ring->per_transfer_context[write_index] =
+							per_recv_context;
+
+		/* Update Destination Ring Write Index */
+		write_index = CE_RING_IDX_INCR(nentries_mask, write_index);
+		ath10k_ce_dest_ring_write_index_set(ar, ctrl_addr, write_index);
+		dest_ring->write_index = write_index;
+		ret = 0;
+	} else {
+		ret = -EIO;
+	}
+	ath10k_pci_sleep(ar);
+	spin_unlock_bh(&ar_pci->ce_lock);
+
+	return ret;
+}
+
+/*
+ * Guts of ath10k_ce_completed_recv_next.
+ * The caller takes responsibility for any necessary locking.
+ */
+static int ath10k_ce_completed_recv_next_nolock(struct ce_state *ce_state,
+						void **per_transfer_contextp,
+						u32 *bufferp,
+						unsigned int *nbytesp,
+						unsigned int *transfer_idp,
+						unsigned int *flagsp)
+{
+	struct ce_ring_state *dest_ring = ce_state->dest_ring;
+	unsigned int nentries_mask = dest_ring->nentries_mask;
+	unsigned int sw_index = dest_ring->sw_index;
+
+	struct ce_desc *base = dest_ring->base_addr_owner_space;
+	struct ce_desc *desc = CE_DEST_RING_TO_DESC(base, sw_index);
+	struct ce_desc sdesc;
+	u16 nbytes;
+
+	/* Copy in one go for performance reasons */
+	sdesc = *desc;
+
+	nbytes = __le16_to_cpu(sdesc.nbytes);
+	if (nbytes == 0) {
+		/*
+		 * This closes a relatively unusual race where the Host
+		 * sees the updated DRRI before the update to the
+		 * corresponding descriptor has completed. We treat this
+		 * as a descriptor that is not yet done.
+		 */
+		return -EIO;
+	}
+
+	desc->nbytes = 0;
+
+	/* Return data from completed destination descriptor */
+	*bufferp = __le32_to_cpu(sdesc.addr);
+	*nbytesp = nbytes;
+	*transfer_idp = MS(__le16_to_cpu(sdesc.flags), CE_DESC_FLAGS_META_DATA);
+
+	if (__le16_to_cpu(sdesc.flags) & CE_DESC_FLAGS_BYTE_SWAP)
+		*flagsp = CE_RECV_FLAG_SWAPPED;
+	else
+		*flagsp = 0;
+
+	if (per_transfer_contextp)
+		*per_transfer_contextp =
+			dest_ring->per_transfer_context[sw_index];
+
+	/* sanity */
+	dest_ring->per_transfer_context[sw_index] = NULL;
+
+	/* Update sw_index */
+	sw_index = CE_RING_IDX_INCR(nentries_mask, sw_index);
+	dest_ring->sw_index = sw_index;
+
+	return 0;
+}
+
+int ath10k_ce_completed_recv_next(struct ce_state *ce_state,
+				  void **per_transfer_contextp,
+				  u32 *bufferp,
+				  unsigned int *nbytesp,
+				  unsigned int *transfer_idp,
+				  unsigned int *flagsp)
+{
+	struct ath10k *ar = ce_state->ar;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int ret;
+
+	spin_lock_bh(&ar_pci->ce_lock);
+	ret = ath10k_ce_completed_recv_next_nolock(ce_state,
+						   per_transfer_contextp,
+						   bufferp, nbytesp,
+						   transfer_idp, flagsp);
+	spin_unlock_bh(&ar_pci->ce_lock);
+
+	return ret;
+}
+
+int ath10k_ce_revoke_recv_next(struct ce_state *ce_state,
+			       void **per_transfer_contextp,
+			       u32 *bufferp)
+{
+	struct ce_ring_state *dest_ring;
+	unsigned int nentries_mask;
+	unsigned int sw_index;
+	unsigned int write_index;
+	int ret;
+	struct ath10k *ar;
+	struct ath10k_pci *ar_pci;
+
+	dest_ring = ce_state->dest_ring;
+
+	if (!dest_ring)
+		return -EIO;
+
+	ar = ce_state->ar;
+	ar_pci = ath10k_pci_priv(ar);
+
+	spin_lock_bh(&ar_pci->ce_lock);
+
+	nentries_mask = dest_ring->nentries_mask;
+	sw_index = dest_ring->sw_index;
+	write_index = dest_ring->write_index;
+	if (write_index != sw_index) {
+		struct ce_desc *base = dest_ring->base_addr_owner_space;
+		struct ce_desc *desc = CE_DEST_RING_TO_DESC(base, sw_index);
+
+		/* Return data from completed destination descriptor */
+		*bufferp = __le32_to_cpu(desc->addr);
+
+		if (per_transfer_contextp)
+			*per_transfer_contextp =
+				dest_ring->per_transfer_context[sw_index];
+
+		/* sanity */
+		dest_ring->per_transfer_context[sw_index] = NULL;
+
+		/* Update sw_index */
+		sw_index = CE_RING_IDX_INCR(nentries_mask, sw_index);
+		dest_ring->sw_index = sw_index;
+		ret = 0;
+	} else {
+		ret = -EIO;
+	}
+
+	spin_unlock_bh(&ar_pci->ce_lock);
+
+	return ret;
+}
+
+/*
+ * Guts of ath10k_ce_completed_send_next.
+ * The caller takes responsibility for any necessary locking.
+ */
+static int ath10k_ce_completed_send_next_nolock(struct ce_state *ce_state,
+						void **per_transfer_contextp,
+						u32 *bufferp,
+						unsigned int *nbytesp,
+						unsigned int *transfer_idp)
+{
+	struct ce_ring_state *src_ring = ce_state->src_ring;
+	u32 ctrl_addr = ce_state->ctrl_addr;
+	struct ath10k *ar = ce_state->ar;
+	unsigned int nentries_mask = src_ring->nentries_mask;
+	unsigned int sw_index = src_ring->sw_index;
+	unsigned int read_index;
+	int ret = -EIO;
+
+	if (src_ring->hw_index == sw_index) {
+		/*
+		 * The SW completion index has caught up with the cached
+		 * version of the HW completion index.
+		 * Update the cached HW completion index to see whether
+		 * the SW has really caught up to the HW, or if the cached
+		 * value of the HW index has become stale.
+		 */
+		ath10k_pci_wake(ar);
+		src_ring->hw_index =
+			ath10k_ce_src_ring_read_index_get(ar, ctrl_addr);
+		ath10k_pci_sleep(ar);
+	}
+	read_index = src_ring->hw_index;
+
+	if ((read_index != sw_index) && (read_index != 0xffffffff)) {
+		struct ce_desc *sbase = src_ring->shadow_base;
+		struct ce_desc *sdesc = CE_SRC_RING_TO_DESC(sbase, sw_index);
+
+		/* Return data from completed source descriptor */
+		*bufferp = __le32_to_cpu(sdesc->addr);
+		*nbytesp = __le16_to_cpu(sdesc->nbytes);
+		*transfer_idp = MS(__le16_to_cpu(sdesc->flags),
+						CE_DESC_FLAGS_META_DATA);
+
+		if (per_transfer_contextp)
+			*per_transfer_contextp =
+				src_ring->per_transfer_context[sw_index];
+
+		/* sanity */
+		src_ring->per_transfer_context[sw_index] = NULL;
+
+		/* Update sw_index */
+		sw_index = CE_RING_IDX_INCR(nentries_mask, sw_index);
+		src_ring->sw_index = sw_index;
+		ret = 0;
+	}
+
+	return ret;
+}
+
+/* NB: Modeled after ath10k_ce_completed_send_next */
+int ath10k_ce_cancel_send_next(struct ce_state *ce_state,
+			       void **per_transfer_contextp,
+			       u32 *bufferp,
+			       unsigned int *nbytesp,
+			       unsigned int *transfer_idp)
+{
+	struct ce_ring_state *src_ring;
+	unsigned int nentries_mask;
+	unsigned int sw_index;
+	unsigned int write_index;
+	int ret;
+	struct ath10k *ar;
+	struct ath10k_pci *ar_pci;
+
+	src_ring = ce_state->src_ring;
+
+	if (!src_ring)
+		return -EIO;
+
+	ar = ce_state->ar;
+	ar_pci = ath10k_pci_priv(ar);
+
+	spin_lock_bh(&ar_pci->ce_lock);
+
+	nentries_mask = src_ring->nentries_mask;
+	sw_index = src_ring->sw_index;
+	write_index = src_ring->write_index;
+
+	if (write_index != sw_index) {
+		struct ce_desc *base = src_ring->base_addr_owner_space;
+		struct ce_desc *desc = CE_SRC_RING_TO_DESC(base, sw_index);
+
+		/* Return data from completed source descriptor */
+		*bufferp = __le32_to_cpu(desc->addr);
+		*nbytesp = __le16_to_cpu(desc->nbytes);
+		*transfer_idp = MS(__le16_to_cpu(desc->flags),
+						CE_DESC_FLAGS_META_DATA);
+
+		if (per_transfer_contextp)
+			*per_transfer_contextp =
+				src_ring->per_transfer_context[sw_index];
+
+		/* sanity */
+		src_ring->per_transfer_context[sw_index] = NULL;
+
+		/* Update sw_index */
+		sw_index = CE_RING_IDX_INCR(nentries_mask, sw_index);
+		src_ring->sw_index = sw_index;
+		ret = 0;
+	} else {
+		ret = -EIO;
+	}
+
+	spin_unlock_bh(&ar_pci->ce_lock);
+
+	return ret;
+}
+
+int ath10k_ce_completed_send_next(struct ce_state *ce_state,
+				  void **per_transfer_contextp,
+				  u32 *bufferp,
+				  unsigned int *nbytesp,
+				  unsigned int *transfer_idp)
+{
+	struct ath10k *ar = ce_state->ar;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int ret;
+
+	spin_lock_bh(&ar_pci->ce_lock);
+	ret = ath10k_ce_completed_send_next_nolock(ce_state,
+						   per_transfer_contextp,
+						   bufferp, nbytesp,
+						   transfer_idp);
+	spin_unlock_bh(&ar_pci->ce_lock);
+
+	return ret;
+}
+
+/*
+ * Guts of interrupt handler for per-engine interrupts on a particular CE.
+ *
+ * Invokes registered callbacks for recv_complete,
+ * send_complete, and watermarks.
+ */
+void ath10k_ce_per_engine_service(struct ath10k *ar, unsigned int ce_id)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct ce_state *ce_state = ar_pci->ce_id_to_state[ce_id];
+	u32 ctrl_addr = ce_state->ctrl_addr;
+	void *transfer_context;
+	u32 buf;
+	unsigned int nbytes;
+	unsigned int id;
+	unsigned int flags;
+
+	ath10k_pci_wake(ar);
+	spin_lock_bh(&ar_pci->ce_lock);
+
+	/* Clear the copy-complete interrupts that will be handled here. */
+	ath10k_ce_engine_int_status_clear(ar, ctrl_addr,
+					  HOST_IS_COPY_COMPLETE_MASK);
+
+	if (ce_state->recv_cb) {
+		/*
+		 * Pop completed recv buffers and call the registered
+		 * recv callback for each
+		 */
+		while (ath10k_ce_completed_recv_next_nolock(ce_state,
+							    &transfer_context,
+							    &buf, &nbytes,
+							    &id, &flags) == 0) {
+			spin_unlock_bh(&ar_pci->ce_lock);
+			ce_state->recv_cb(ce_state, transfer_context, buf,
+					  nbytes, id, flags);
+			spin_lock_bh(&ar_pci->ce_lock);
+		}
+	}
+
+	if (ce_state->send_cb) {
+		/*
+		 * Pop completed send buffers and call the registered
+		 * send callback for each
+		 */
+		while (ath10k_ce_completed_send_next_nolock(ce_state,
+							    &transfer_context,
+							    &buf,
+							    &nbytes,
+							    &id) == 0) {
+			spin_unlock_bh(&ar_pci->ce_lock);
+			ce_state->send_cb(ce_state, transfer_context,
+					  buf, nbytes, id);
+			spin_lock_bh(&ar_pci->ce_lock);
+		}
+	}
+
+	/*
+	 * Misc CE interrupts are not being handled, but still need
+	 * to be cleared.
+	 */
+	ath10k_ce_engine_int_status_clear(ar, ctrl_addr, CE_WATERMARK_MASK);
+
+	spin_unlock_bh(&ar_pci->ce_lock);
+	ath10k_pci_sleep(ar);
+}
+
+/*
+ * Handler for per-engine interrupts on ALL active CEs.
+ * This is used in cases where the system is sharing a
+ * single interrput for all CEs
+ */
+
+void ath10k_ce_per_engine_service_any(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int ce_id;
+	u32 intr_summary;
+
+	ath10k_pci_wake(ar);
+	intr_summary = CE_INTERRUPT_SUMMARY(ar);
+
+	for (ce_id = 0; intr_summary && (ce_id < ar_pci->ce_count); ce_id++) {
+		if (intr_summary & (1 << ce_id))
+			intr_summary &= ~(1 << ce_id);
+		else
+			/* no intr pending on this CE */
+			continue;
+
+		ath10k_ce_per_engine_service(ar, ce_id);
+	}
+
+	ath10k_pci_sleep(ar);
+}
+
+/*
+ * Adjust interrupts for the copy complete handler.
+ * If it's needed for either send or recv, then unmask
+ * this interrupt; otherwise, mask it.
+ *
+ * Called with ce_lock held.
+ */
+static void ath10k_ce_per_engine_handler_adjust(struct ce_state *ce_state,
+						int disable_copy_compl_intr)
+{
+	u32 ctrl_addr = ce_state->ctrl_addr;
+	struct ath10k *ar = ce_state->ar;
+
+	ath10k_pci_wake(ar);
+
+	if ((!disable_copy_compl_intr) &&
+	    (ce_state->send_cb || ce_state->recv_cb))
+		ath10k_ce_copy_complete_inter_enable(ar, ctrl_addr);
+	else
+		ath10k_ce_copy_complete_intr_disable(ar, ctrl_addr);
+
+	ath10k_ce_watermark_intr_disable(ar, ctrl_addr);
+
+	ath10k_pci_sleep(ar);
+}
+
+void ath10k_ce_disable_interrupts(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int ce_id;
+
+	ath10k_pci_wake(ar);
+	for (ce_id = 0; ce_id < ar_pci->ce_count; ce_id++) {
+		struct ce_state *ce_state = ar_pci->ce_id_to_state[ce_id];
+		u32 ctrl_addr = ce_state->ctrl_addr;
+
+		ath10k_ce_copy_complete_intr_disable(ar, ctrl_addr);
+	}
+	ath10k_pci_sleep(ar);
+}
+
+void ath10k_ce_send_cb_register(struct ce_state *ce_state,
+				void (*send_cb) (struct ce_state *ce_state,
+						 void *transfer_context,
+						 u32 buffer,
+						 unsigned int nbytes,
+						 unsigned int transfer_id),
+				int disable_interrupts)
+{
+	struct ath10k *ar = ce_state->ar;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+
+	spin_lock_bh(&ar_pci->ce_lock);
+	ce_state->send_cb = send_cb;
+	ath10k_ce_per_engine_handler_adjust(ce_state, disable_interrupts);
+	spin_unlock_bh(&ar_pci->ce_lock);
+}
+
+void ath10k_ce_recv_cb_register(struct ce_state *ce_state,
+				void (*recv_cb) (struct ce_state *ce_state,
+						 void *transfer_context,
+						 u32 buffer,
+						 unsigned int nbytes,
+						 unsigned int transfer_id,
+						 unsigned int flags))
+{
+	struct ath10k *ar = ce_state->ar;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+
+	spin_lock_bh(&ar_pci->ce_lock);
+	ce_state->recv_cb = recv_cb;
+	ath10k_ce_per_engine_handler_adjust(ce_state, 0);
+	spin_unlock_bh(&ar_pci->ce_lock);
+}
+
+static int ath10k_ce_init_src_ring(struct ath10k *ar,
+				   unsigned int ce_id,
+				   struct ce_state *ce_state,
+				   const struct ce_attr *attr)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct ce_ring_state *src_ring;
+	unsigned int nentries = attr->src_nentries;
+	unsigned int ce_nbytes;
+	u32 ctrl_addr = ath10k_ce_base_address(ce_id);
+	dma_addr_t base_addr;
+	char *ptr;
+
+	nentries = roundup_pow_of_two(nentries);
+
+	if (ce_state->src_ring) {
+		WARN_ON(ce_state->src_ring->nentries != nentries);
+		return 0;
+	}
+
+	ce_nbytes = sizeof(struct ce_ring_state) + (nentries * sizeof(void *));
+	ptr = kzalloc(ce_nbytes, GFP_KERNEL);
+	if (ptr == NULL)
+		return -ENOMEM;
+
+	ce_state->src_ring = (struct ce_ring_state *)ptr;
+	src_ring = ce_state->src_ring;
+
+	ptr += sizeof(struct ce_ring_state);
+	src_ring->nentries = nentries;
+	src_ring->nentries_mask = nentries - 1;
+
+	ath10k_pci_wake(ar);
+	src_ring->sw_index = ath10k_ce_src_ring_read_index_get(ar, ctrl_addr);
+	src_ring->hw_index = src_ring->sw_index;
+
+	src_ring->write_index =
+		ath10k_ce_src_ring_write_index_get(ar, ctrl_addr);
+	ath10k_pci_sleep(ar);
+
+	src_ring->per_transfer_context = (void **)ptr;
+
+	/*
+	 * Legacy platforms that do not support cache
+	 * coherent DMA are unsupported
+	 */
+	src_ring->base_addr_owner_space_unaligned =
+		pci_alloc_consistent(ar_pci->pdev,
+				     (nentries * sizeof(struct ce_desc) +
+				      CE_DESC_RING_ALIGN),
+				     &base_addr);
+	src_ring->base_addr_ce_space_unaligned = base_addr;
+
+	src_ring->base_addr_owner_space = PTR_ALIGN(
+			src_ring->base_addr_owner_space_unaligned,
+			CE_DESC_RING_ALIGN);
+	src_ring->base_addr_ce_space = ALIGN(
+			src_ring->base_addr_ce_space_unaligned,
+			CE_DESC_RING_ALIGN);
+
+	/*
+	 * Also allocate a shadow src ring in regular
+	 * mem to use for faster access.
+	 */
+	src_ring->shadow_base_unaligned =
+		kmalloc((nentries * sizeof(struct ce_desc) +
+			 CE_DESC_RING_ALIGN), GFP_KERNEL);
+
+	src_ring->shadow_base = PTR_ALIGN(
+			src_ring->shadow_base_unaligned,
+			CE_DESC_RING_ALIGN);
+
+	ath10k_pci_wake(ar);
+	ath10k_ce_src_ring_base_addr_set(ar, ctrl_addr,
+					 src_ring->base_addr_ce_space);
+	ath10k_ce_src_ring_size_set(ar, ctrl_addr, nentries);
+	ath10k_ce_src_ring_dmax_set(ar, ctrl_addr, attr->src_sz_max);
+	ath10k_ce_src_ring_byte_swap_set(ar, ctrl_addr, 0);
+	ath10k_ce_src_ring_lowmark_set(ar, ctrl_addr, 0);
+	ath10k_ce_src_ring_highmark_set(ar, ctrl_addr, nentries);
+	ath10k_pci_sleep(ar);
+
+	return 0;
+}
+
+static int ath10k_ce_init_dest_ring(struct ath10k *ar,
+				    unsigned int ce_id,
+				    struct ce_state *ce_state,
+				    const struct ce_attr *attr)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct ce_ring_state *dest_ring;
+	unsigned int nentries = attr->dest_nentries;
+	unsigned int ce_nbytes;
+	u32 ctrl_addr = ath10k_ce_base_address(ce_id);
+	dma_addr_t base_addr;
+	char *ptr;
+
+	nentries = roundup_pow_of_two(nentries);
+
+	if (ce_state->dest_ring) {
+		WARN_ON(ce_state->dest_ring->nentries != nentries);
+		return 0;
+	}
+
+	ce_nbytes = sizeof(struct ce_ring_state) + (nentries * sizeof(void *));
+	ptr = kzalloc(ce_nbytes, GFP_KERNEL);
+	if (ptr == NULL)
+		return -ENOMEM;
+
+	ce_state->dest_ring = (struct ce_ring_state *)ptr;
+	dest_ring = ce_state->dest_ring;
+
+	ptr += sizeof(struct ce_ring_state);
+	dest_ring->nentries = nentries;
+	dest_ring->nentries_mask = nentries - 1;
+
+	ath10k_pci_wake(ar);
+	dest_ring->sw_index = ath10k_ce_dest_ring_read_index_get(ar, ctrl_addr);
+	dest_ring->write_index =
+		ath10k_ce_dest_ring_write_index_get(ar, ctrl_addr);
+	ath10k_pci_sleep(ar);
+
+	dest_ring->per_transfer_context = (void **)ptr;
+
+	/*
+	 * Legacy platforms that do not support cache
+	 * coherent DMA are unsupported
+	 */
+	dest_ring->base_addr_owner_space_unaligned =
+		pci_alloc_consistent(ar_pci->pdev,
+				     (nentries * sizeof(struct ce_desc) +
+				      CE_DESC_RING_ALIGN),
+				     &base_addr);
+	dest_ring->base_addr_ce_space_unaligned = base_addr;
+
+	/*
+	 * Correctly initialize memory to 0 to prevent garbage
+	 * data crashing system when download firmware
+	 */
+	memset(dest_ring->base_addr_owner_space_unaligned, 0,
+	       nentries * sizeof(struct ce_desc) + CE_DESC_RING_ALIGN);
+
+	dest_ring->base_addr_owner_space = PTR_ALIGN(
+			dest_ring->base_addr_owner_space_unaligned,
+			CE_DESC_RING_ALIGN);
+	dest_ring->base_addr_ce_space = ALIGN(
+			dest_ring->base_addr_ce_space_unaligned,
+			CE_DESC_RING_ALIGN);
+
+	ath10k_pci_wake(ar);
+	ath10k_ce_dest_ring_base_addr_set(ar, ctrl_addr,
+					  dest_ring->base_addr_ce_space);
+	ath10k_ce_dest_ring_size_set(ar, ctrl_addr, nentries);
+	ath10k_ce_dest_ring_byte_swap_set(ar, ctrl_addr, 0);
+	ath10k_ce_dest_ring_lowmark_set(ar, ctrl_addr, 0);
+	ath10k_ce_dest_ring_highmark_set(ar, ctrl_addr, nentries);
+	ath10k_pci_sleep(ar);
+
+	return 0;
+}
+
+static struct ce_state *ath10k_ce_init_state(struct ath10k *ar,
+					     unsigned int ce_id,
+					     const struct ce_attr *attr)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct ce_state *ce_state = NULL;
+	u32 ctrl_addr = ath10k_ce_base_address(ce_id);
+
+	spin_lock_bh(&ar_pci->ce_lock);
+
+	if (!ar_pci->ce_id_to_state[ce_id]) {
+		ce_state = kzalloc(sizeof(*ce_state), GFP_ATOMIC);
+		if (ce_state == NULL) {
+			spin_unlock_bh(&ar_pci->ce_lock);
+			return NULL;
+		}
+
+		ar_pci->ce_id_to_state[ce_id] = ce_state;
+		ce_state->ar = ar;
+		ce_state->id = ce_id;
+		ce_state->ctrl_addr = ctrl_addr;
+		ce_state->state = CE_RUNNING;
+		/* Save attribute flags */
+		ce_state->attr_flags = attr->flags;
+		ce_state->src_sz_max = attr->src_sz_max;
+	}
+
+	spin_unlock_bh(&ar_pci->ce_lock);
+
+	return ce_state;
+}
+
+/*
+ * Initialize a Copy Engine based on caller-supplied attributes.
+ * This may be called once to initialize both source and destination
+ * rings or it may be called twice for separate source and destination
+ * initialization. It may be that only one side or the other is
+ * initialized by software/firmware.
+ */
+struct ce_state *ath10k_ce_init(struct ath10k *ar,
+				unsigned int ce_id,
+				const struct ce_attr *attr)
+{
+	struct ce_state *ce_state;
+	u32 ctrl_addr = ath10k_ce_base_address(ce_id);
+
+	ce_state = ath10k_ce_init_state(ar, ce_id, attr);
+	if (!ce_state) {
+		ath10k_err("Failed to initialize CE state for ID: %d\n", ce_id);
+		return NULL;
+	}
+
+	if (attr->src_nentries) {
+		if (ath10k_ce_init_src_ring(ar, ce_id, ce_state, attr)) {
+			ath10k_err("Failed to initialize CE src ring for ID: %d\n",
+				   ce_id);
+			ath10k_ce_deinit(ce_state);
+			return NULL;
+		}
+	}
+
+	if (attr->dest_nentries) {
+		if (ath10k_ce_init_dest_ring(ar, ce_id, ce_state, attr)) {
+			ath10k_err("Failed to initialize CE dest ring for ID: %d\n",
+				   ce_id);
+			ath10k_ce_deinit(ce_state);
+			return NULL;
+		}
+	}
+
+	/* Enable CE error interrupts */
+	ath10k_pci_wake(ar);
+	ath10k_ce_error_intr_enable(ar, ctrl_addr);
+	ath10k_pci_sleep(ar);
+
+	return ce_state;
+}
+
+void ath10k_ce_deinit(struct ce_state *ce_state)
+{
+	unsigned int ce_id = ce_state->id;
+	struct ath10k *ar = ce_state->ar;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+
+	ce_state->state = CE_UNUSED;
+	ar_pci->ce_id_to_state[ce_id] = NULL;
+
+	if (ce_state->src_ring) {
+		kfree(ce_state->src_ring->shadow_base_unaligned);
+		pci_free_consistent(ar_pci->pdev,
+				    (ce_state->src_ring->nentries *
+				     sizeof(struct ce_desc) +
+				     CE_DESC_RING_ALIGN),
+				    ce_state->src_ring->base_addr_owner_space,
+				    ce_state->src_ring->base_addr_ce_space);
+		kfree(ce_state->src_ring);
+	}
+
+	if (ce_state->dest_ring) {
+		pci_free_consistent(ar_pci->pdev,
+				    (ce_state->dest_ring->nentries *
+				     sizeof(struct ce_desc) +
+				     CE_DESC_RING_ALIGN),
+				    ce_state->dest_ring->base_addr_owner_space,
+				    ce_state->dest_ring->base_addr_ce_space);
+		kfree(ce_state->dest_ring);
+	}
+	kfree(ce_state);
+}

drivers/net/wireless/ath/ath10k/ce.h

@@ -0,0 +1,516 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _CE_H_
+#define _CE_H_
+
+#include "hif.h"
+
+
+/* Maximum number of Copy Engine's supported */
+#define CE_COUNT_MAX 8
+#define CE_HTT_H2T_MSG_SRC_NENTRIES 2048
+
+/* Descriptor rings must be aligned to this boundary */
+#define CE_DESC_RING_ALIGN	8
+#define CE_SENDLIST_ITEMS_MAX	12
+#define CE_SEND_FLAG_GATHER	0x00010000
+
+/*
+ * Copy Engine support: low-level Target-side Copy Engine API.
+ * This is a hardware access layer used by code that understands
+ * how to use copy engines.
+ */
+
+struct ce_state;
+
+
+/* Copy Engine operational state */
+enum ce_op_state {
+	CE_UNUSED,
+	CE_PAUSED,
+	CE_RUNNING,
+};
+
+#define CE_DESC_FLAGS_GATHER         (1 << 0)
+#define CE_DESC_FLAGS_BYTE_SWAP      (1 << 1)
+#define CE_DESC_FLAGS_META_DATA_MASK 0xFFFC
+#define CE_DESC_FLAGS_META_DATA_LSB  3
+
+struct ce_desc {
+	__le32 addr;
+	__le16 nbytes;
+	__le16 flags; /* %CE_DESC_FLAGS_ */
+};
+
+/* Copy Engine Ring internal state */
+struct ce_ring_state {
+	/* Number of entries in this ring; must be power of 2 */
+	unsigned int nentries;
+	unsigned int nentries_mask;
+
+	/*
+	 * For dest ring, this is the next index to be processed
+	 * by software after it was/is received into.
+	 *
+	 * For src ring, this is the last descriptor that was sent
+	 * and completion processed by software.
+	 *
+	 * Regardless of src or dest ring, this is an invariant
+	 * (modulo ring size):
+	 *     write index >= read index >= sw_index
+	 */
+	unsigned int sw_index;
+	/* cached copy */
+	unsigned int write_index;
+	/*
+	 * For src ring, this is the next index not yet processed by HW.
+	 * This is a cached copy of the real HW index (read index), used
+	 * for avoiding reading the HW index register more often than
+	 * necessary.
+	 * This extends the invariant:
+	 *     write index >= read index >= hw_index >= sw_index
+	 *
+	 * For dest ring, this is currently unused.
+	 */
+	/* cached copy */
+	unsigned int hw_index;
+
+	/* Start of DMA-coherent area reserved for descriptors */
+	/* Host address space */
+	void *base_addr_owner_space_unaligned;
+	/* CE address space */
+	u32 base_addr_ce_space_unaligned;
+
+	/*
+	 * Actual start of descriptors.
+	 * Aligned to descriptor-size boundary.
+	 * Points into reserved DMA-coherent area, above.
+	 */
+	/* Host address space */
+	void *base_addr_owner_space;
+
+	/* CE address space */
+	u32 base_addr_ce_space;
+	/*
+	 * Start of shadow copy of descriptors, within regular memory.
+	 * Aligned to descriptor-size boundary.
+	 */
+	void *shadow_base_unaligned;
+	struct ce_desc *shadow_base;
+
+	void **per_transfer_context;
+};
+
+/* Copy Engine internal state */
+struct ce_state {
+	struct ath10k *ar;
+	unsigned int id;
+
+	unsigned int attr_flags;
+
+	u32 ctrl_addr;
+	enum ce_op_state state;
+
+	void (*send_cb) (struct ce_state *ce_state,
+			 void *per_transfer_send_context,
+			 u32 buffer,
+			 unsigned int nbytes,
+			 unsigned int transfer_id);
+	void (*recv_cb) (struct ce_state *ce_state,
+			 void *per_transfer_recv_context,
+			 u32 buffer,
+			 unsigned int nbytes,
+			 unsigned int transfer_id,
+			 unsigned int flags);
+
+	unsigned int src_sz_max;
+	struct ce_ring_state *src_ring;
+	struct ce_ring_state *dest_ring;
+};
+
+struct ce_sendlist_item {
+	/* e.g. buffer or desc list */
+	dma_addr_t data;
+	union {
+		/* simple buffer */
+		unsigned int nbytes;
+		/* Rx descriptor list */
+		unsigned int ndesc;
+	} u;
+	/* externally-specified flags; OR-ed with internal flags */
+	u32 flags;
+};
+
+struct ce_sendlist {
+	unsigned int num_items;
+	struct ce_sendlist_item item[CE_SENDLIST_ITEMS_MAX];
+};
+
+/* Copy Engine settable attributes */
+struct ce_attr;
+
+/*==================Send====================*/
+
+/* ath10k_ce_send flags */
+#define CE_SEND_FLAG_BYTE_SWAP 1
+
+/*
+ * Queue a source buffer to be sent to an anonymous destination buffer.
+ *   ce         - which copy engine to use
+ *   buffer          - address of buffer
+ *   nbytes          - number of bytes to send
+ *   transfer_id     - arbitrary ID; reflected to destination
+ *   flags           - CE_SEND_FLAG_* values
+ * Returns 0 on success; otherwise an error status.
+ *
+ * Note: If no flags are specified, use CE's default data swap mode.
+ *
+ * Implementation note: pushes 1 buffer to Source ring
+ */
+int ath10k_ce_send(struct ce_state *ce_state,
+		   void *per_transfer_send_context,
+		   u32 buffer,
+		   unsigned int nbytes,
+		   /* 14 bits */
+		   unsigned int transfer_id,
+		   unsigned int flags);
+
+void ath10k_ce_send_cb_register(struct ce_state *ce_state,
+				void (*send_cb) (struct ce_state *ce_state,
+						 void *transfer_context,
+						 u32 buffer,
+						 unsigned int nbytes,
+						 unsigned int transfer_id),
+				int disable_interrupts);
+
+/* Append a simple buffer (address/length) to a sendlist. */
+void ath10k_ce_sendlist_buf_add(struct ce_sendlist *sendlist,
+				u32 buffer,
+				unsigned int nbytes,
+				/* OR-ed with internal flags */
+				u32 flags);
+
+/*
+ * Queue a "sendlist" of buffers to be sent using gather to a single
+ * anonymous destination buffer
+ *   ce         - which copy engine to use
+ *   sendlist        - list of simple buffers to send using gather
+ *   transfer_id     - arbitrary ID; reflected to destination
+ * Returns 0 on success; otherwise an error status.
+ *
+ * Implemenation note: Pushes multiple buffers with Gather to Source ring.
+ */
+int ath10k_ce_sendlist_send(struct ce_state *ce_state,
+			    void *per_transfer_send_context,
+			    struct ce_sendlist *sendlist,
+			    /* 14 bits */
+			    unsigned int transfer_id);
+
+/*==================Recv=======================*/
+
+/*
+ * Make a buffer available to receive. The buffer must be at least of a
+ * minimal size appropriate for this copy engine (src_sz_max attribute).
+ *   ce                    - which copy engine to use
+ *   per_transfer_recv_context  - context passed back to caller's recv_cb
+ *   buffer                     - address of buffer in CE space
+ * Returns 0 on success; otherwise an error status.
+ *
+ * Implemenation note: Pushes a buffer to Dest ring.
+ */
+int ath10k_ce_recv_buf_enqueue(struct ce_state *ce_state,
+			       void *per_transfer_recv_context,
+			       u32 buffer);
+
+void ath10k_ce_recv_cb_register(struct ce_state *ce_state,
+				void (*recv_cb) (struct ce_state *ce_state,
+						 void *transfer_context,
+						 u32 buffer,
+						 unsigned int nbytes,
+						 unsigned int transfer_id,
+						 unsigned int flags));
+
+/* recv flags */
+/* Data is byte-swapped */
+#define CE_RECV_FLAG_SWAPPED	1
+
+/*
+ * Supply data for the next completed unprocessed receive descriptor.
+ * Pops buffer from Dest ring.
+ */
+int ath10k_ce_completed_recv_next(struct ce_state *ce_state,
+				  void **per_transfer_contextp,
+				  u32 *bufferp,
+				  unsigned int *nbytesp,
+				  unsigned int *transfer_idp,
+				  unsigned int *flagsp);
+/*
+ * Supply data for the next completed unprocessed send descriptor.
+ * Pops 1 completed send buffer from Source ring.
+ */
+int ath10k_ce_completed_send_next(struct ce_state *ce_state,
+			   void **per_transfer_contextp,
+			   u32 *bufferp,
+			   unsigned int *nbytesp,
+			   unsigned int *transfer_idp);
+
+/*==================CE Engine Initialization=======================*/
+
+/* Initialize an instance of a CE */
+struct ce_state *ath10k_ce_init(struct ath10k *ar,
+				unsigned int ce_id,
+				const struct ce_attr *attr);
+
+/*==================CE Engine Shutdown=======================*/
+/*
+ * Support clean shutdown by allowing the caller to revoke
+ * receive buffers.  Target DMA must be stopped before using
+ * this API.
+ */
+int ath10k_ce_revoke_recv_next(struct ce_state *ce_state,
+			       void **per_transfer_contextp,
+			       u32 *bufferp);
+
+/*
+ * Support clean shutdown by allowing the caller to cancel
+ * pending sends.  Target DMA must be stopped before using
+ * this API.
+ */
+int ath10k_ce_cancel_send_next(struct ce_state *ce_state,
+			       void **per_transfer_contextp,
+			       u32 *bufferp,
+			       unsigned int *nbytesp,
+			       unsigned int *transfer_idp);
+
+void ath10k_ce_deinit(struct ce_state *ce_state);
+
+/*==================CE Interrupt Handlers====================*/
+void ath10k_ce_per_engine_service_any(struct ath10k *ar);
+void ath10k_ce_per_engine_service(struct ath10k *ar, unsigned int ce_id);
+void ath10k_ce_disable_interrupts(struct ath10k *ar);
+
+/* ce_attr.flags values */
+/* Use NonSnooping PCIe accesses? */
+#define CE_ATTR_NO_SNOOP		1
+
+/* Byte swap data words */
+#define CE_ATTR_BYTE_SWAP_DATA		2
+
+/* Swizzle descriptors? */
+#define CE_ATTR_SWIZZLE_DESCRIPTORS	4
+
+/* no interrupt on copy completion */
+#define CE_ATTR_DIS_INTR		8
+
+/* Attributes of an instance of a Copy Engine */
+struct ce_attr {
+	/* CE_ATTR_* values */
+	unsigned int flags;
+
+	/* currently not in use */
+	unsigned int priority;
+
+	/* #entries in source ring - Must be a power of 2 */
+	unsigned int src_nentries;
+
+	/*
+	 * Max source send size for this CE.
+	 * This is also the minimum size of a destination buffer.
+	 */
+	unsigned int src_sz_max;
+
+	/* #entries in destination ring - Must be a power of 2 */
+	unsigned int dest_nentries;
+
+	/* Future use */
+	void *reserved;
+};
+
+/*
+ * When using sendlist_send to transfer multiple buffer fragments, the
+ * transfer context of each fragment, except last one, will be filled
+ * with CE_SENDLIST_ITEM_CTXT. ce_completed_send will return success for
+ * each fragment done with send and the transfer context would be
+ * CE_SENDLIST_ITEM_CTXT. Upper layer could use this to identify the
+ * status of a send completion.
+ */
+#define CE_SENDLIST_ITEM_CTXT	((void *)0xcecebeef)
+
+#define SR_BA_ADDRESS		0x0000
+#define SR_SIZE_ADDRESS		0x0004
+#define DR_BA_ADDRESS		0x0008
+#define DR_SIZE_ADDRESS		0x000c
+#define CE_CMD_ADDRESS		0x0018
+
+#define CE_CTRL1_DST_RING_BYTE_SWAP_EN_MSB	17
+#define CE_CTRL1_DST_RING_BYTE_SWAP_EN_LSB	17
+#define CE_CTRL1_DST_RING_BYTE_SWAP_EN_MASK	0x00020000
+#define CE_CTRL1_DST_RING_BYTE_SWAP_EN_SET(x) \
+	(((0 | (x)) << CE_CTRL1_DST_RING_BYTE_SWAP_EN_LSB) & \
+	CE_CTRL1_DST_RING_BYTE_SWAP_EN_MASK)
+
+#define CE_CTRL1_SRC_RING_BYTE_SWAP_EN_MSB	16
+#define CE_CTRL1_SRC_RING_BYTE_SWAP_EN_LSB	16
+#define CE_CTRL1_SRC_RING_BYTE_SWAP_EN_MASK	0x00010000
+#define CE_CTRL1_SRC_RING_BYTE_SWAP_EN_GET(x) \
+	(((x) & CE_CTRL1_SRC_RING_BYTE_SWAP_EN_MASK) >> \
+	 CE_CTRL1_SRC_RING_BYTE_SWAP_EN_LSB)
+#define CE_CTRL1_SRC_RING_BYTE_SWAP_EN_SET(x) \
+	(((0 | (x)) << CE_CTRL1_SRC_RING_BYTE_SWAP_EN_LSB) & \
+	 CE_CTRL1_SRC_RING_BYTE_SWAP_EN_MASK)
+
+#define CE_CTRL1_DMAX_LENGTH_MSB		15
+#define CE_CTRL1_DMAX_LENGTH_LSB		0
+#define CE_CTRL1_DMAX_LENGTH_MASK		0x0000ffff
+#define CE_CTRL1_DMAX_LENGTH_GET(x) \
+	(((x) & CE_CTRL1_DMAX_LENGTH_MASK) >> CE_CTRL1_DMAX_LENGTH_LSB)
+#define CE_CTRL1_DMAX_LENGTH_SET(x) \
+	(((0 | (x)) << CE_CTRL1_DMAX_LENGTH_LSB) & CE_CTRL1_DMAX_LENGTH_MASK)
+
+#define CE_CTRL1_ADDRESS			0x0010
+#define CE_CTRL1_HW_MASK			0x0007ffff
+#define CE_CTRL1_SW_MASK			0x0007ffff
+#define CE_CTRL1_HW_WRITE_MASK			0x00000000
+#define CE_CTRL1_SW_WRITE_MASK			0x0007ffff
+#define CE_CTRL1_RSTMASK			0xffffffff
+#define CE_CTRL1_RESET				0x00000080
+
+#define CE_CMD_HALT_STATUS_MSB			3
+#define CE_CMD_HALT_STATUS_LSB			3
+#define CE_CMD_HALT_STATUS_MASK			0x00000008
+#define CE_CMD_HALT_STATUS_GET(x) \
+	(((x) & CE_CMD_HALT_STATUS_MASK) >> CE_CMD_HALT_STATUS_LSB)
+#define CE_CMD_HALT_STATUS_SET(x) \
+	(((0 | (x)) << CE_CMD_HALT_STATUS_LSB) & CE_CMD_HALT_STATUS_MASK)
+#define CE_CMD_HALT_STATUS_RESET		0
+#define CE_CMD_HALT_MSB				0
+#define CE_CMD_HALT_MASK			0x00000001
+
+#define HOST_IE_COPY_COMPLETE_MSB		0
+#define HOST_IE_COPY_COMPLETE_LSB		0
+#define HOST_IE_COPY_COMPLETE_MASK		0x00000001
+#define HOST_IE_COPY_COMPLETE_GET(x) \
+	(((x) & HOST_IE_COPY_COMPLETE_MASK) >> HOST_IE_COPY_COMPLETE_LSB)
+#define HOST_IE_COPY_COMPLETE_SET(x) \
+	(((0 | (x)) << HOST_IE_COPY_COMPLETE_LSB) & HOST_IE_COPY_COMPLETE_MASK)
+#define HOST_IE_COPY_COMPLETE_RESET		0
+#define HOST_IE_ADDRESS				0x002c
+
+#define HOST_IS_DST_RING_LOW_WATERMARK_MASK	0x00000010
+#define HOST_IS_DST_RING_HIGH_WATERMARK_MASK	0x00000008
+#define HOST_IS_SRC_RING_LOW_WATERMARK_MASK	0x00000004
+#define HOST_IS_SRC_RING_HIGH_WATERMARK_MASK	0x00000002
+#define HOST_IS_COPY_COMPLETE_MASK		0x00000001
+#define HOST_IS_ADDRESS				0x0030
+
+#define MISC_IE_ADDRESS				0x0034
+
+#define MISC_IS_AXI_ERR_MASK			0x00000400
+
+#define MISC_IS_DST_ADDR_ERR_MASK		0x00000200
+#define MISC_IS_SRC_LEN_ERR_MASK		0x00000100
+#define MISC_IS_DST_MAX_LEN_VIO_MASK		0x00000080
+#define MISC_IS_DST_RING_OVERFLOW_MASK		0x00000040
+#define MISC_IS_SRC_RING_OVERFLOW_MASK		0x00000020
+
+#define MISC_IS_ADDRESS				0x0038
+
+#define SR_WR_INDEX_ADDRESS			0x003c
+
+#define DST_WR_INDEX_ADDRESS			0x0040
+
+#define CURRENT_SRRI_ADDRESS			0x0044
+
+#define CURRENT_DRRI_ADDRESS			0x0048
+
+#define SRC_WATERMARK_LOW_MSB			31
+#define SRC_WATERMARK_LOW_LSB			16
+#define SRC_WATERMARK_LOW_MASK			0xffff0000
+#define SRC_WATERMARK_LOW_GET(x) \
+	(((x) & SRC_WATERMARK_LOW_MASK) >> SRC_WATERMARK_LOW_LSB)
+#define SRC_WATERMARK_LOW_SET(x) \
+	(((0 | (x)) << SRC_WATERMARK_LOW_LSB) & SRC_WATERMARK_LOW_MASK)
+#define SRC_WATERMARK_LOW_RESET			0
+#define SRC_WATERMARK_HIGH_MSB			15
+#define SRC_WATERMARK_HIGH_LSB			0
+#define SRC_WATERMARK_HIGH_MASK			0x0000ffff
+#define SRC_WATERMARK_HIGH_GET(x) \
+	(((x) & SRC_WATERMARK_HIGH_MASK) >> SRC_WATERMARK_HIGH_LSB)
+#define SRC_WATERMARK_HIGH_SET(x) \
+	(((0 | (x)) << SRC_WATERMARK_HIGH_LSB) & SRC_WATERMARK_HIGH_MASK)
+#define SRC_WATERMARK_HIGH_RESET		0
+#define SRC_WATERMARK_ADDRESS			0x004c
+
+#define DST_WATERMARK_LOW_LSB			16
+#define DST_WATERMARK_LOW_MASK			0xffff0000
+#define DST_WATERMARK_LOW_SET(x) \
+	(((0 | (x)) << DST_WATERMARK_LOW_LSB) & DST_WATERMARK_LOW_MASK)
+#define DST_WATERMARK_LOW_RESET			0
+#define DST_WATERMARK_HIGH_MSB			15
+#define DST_WATERMARK_HIGH_LSB			0
+#define DST_WATERMARK_HIGH_MASK			0x0000ffff
+#define DST_WATERMARK_HIGH_GET(x) \
+	(((x) & DST_WATERMARK_HIGH_MASK) >> DST_WATERMARK_HIGH_LSB)
+#define DST_WATERMARK_HIGH_SET(x) \
+	(((0 | (x)) << DST_WATERMARK_HIGH_LSB) & DST_WATERMARK_HIGH_MASK)
+#define DST_WATERMARK_HIGH_RESET		0
+#define DST_WATERMARK_ADDRESS			0x0050
+
+
+static inline u32 ath10k_ce_base_address(unsigned int ce_id)
+{
+	return CE0_BASE_ADDRESS + (CE1_BASE_ADDRESS - CE0_BASE_ADDRESS) * ce_id;
+}
+
+#define CE_WATERMARK_MASK (HOST_IS_SRC_RING_LOW_WATERMARK_MASK  | \
+			   HOST_IS_SRC_RING_HIGH_WATERMARK_MASK | \
+			   HOST_IS_DST_RING_LOW_WATERMARK_MASK  | \
+			   HOST_IS_DST_RING_HIGH_WATERMARK_MASK)
+
+#define CE_ERROR_MASK	(MISC_IS_AXI_ERR_MASK           | \
+			 MISC_IS_DST_ADDR_ERR_MASK      | \
+			 MISC_IS_SRC_LEN_ERR_MASK       | \
+			 MISC_IS_DST_MAX_LEN_VIO_MASK   | \
+			 MISC_IS_DST_RING_OVERFLOW_MASK | \
+			 MISC_IS_SRC_RING_OVERFLOW_MASK)
+
+#define CE_SRC_RING_TO_DESC(baddr, idx) \
+	(&(((struct ce_desc *)baddr)[idx]))
+
+#define CE_DEST_RING_TO_DESC(baddr, idx) \
+	(&(((struct ce_desc *)baddr)[idx]))
+
+/* Ring arithmetic (modulus number of entries in ring, which is a pwr of 2). */
+#define CE_RING_DELTA(nentries_mask, fromidx, toidx) \
+	(((int)(toidx)-(int)(fromidx)) & (nentries_mask))
+
+#define CE_RING_IDX_INCR(nentries_mask, idx) (((idx) + 1) & (nentries_mask))
+
+#define CE_WRAPPER_INTERRUPT_SUMMARY_HOST_MSI_LSB		8
+#define CE_WRAPPER_INTERRUPT_SUMMARY_HOST_MSI_MASK		0x0000ff00
+#define CE_WRAPPER_INTERRUPT_SUMMARY_HOST_MSI_GET(x) \
+	(((x) & CE_WRAPPER_INTERRUPT_SUMMARY_HOST_MSI_MASK) >> \
+		CE_WRAPPER_INTERRUPT_SUMMARY_HOST_MSI_LSB)
+#define CE_WRAPPER_INTERRUPT_SUMMARY_ADDRESS			0x0000
+
+#define CE_INTERRUPT_SUMMARY(ar) \
+	CE_WRAPPER_INTERRUPT_SUMMARY_HOST_MSI_GET( \
+		ath10k_pci_read32((ar), CE_WRAPPER_BASE_ADDRESS + \
+		CE_WRAPPER_INTERRUPT_SUMMARY_ADDRESS))
+
+#endif /* _CE_H_ */

drivers/net/wireless/ath/ath10k/core.c

@@ -0,0 +1,665 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/module.h>
+#include <linux/firmware.h>
+
+#include "core.h"
+#include "mac.h"
+#include "htc.h"
+#include "hif.h"
+#include "wmi.h"
+#include "bmi.h"
+#include "debug.h"
+#include "htt.h"
+
+unsigned int ath10k_debug_mask;
+static bool uart_print;
+static unsigned int ath10k_p2p;
+module_param_named(debug_mask, ath10k_debug_mask, uint, 0644);
+module_param(uart_print, bool, 0644);
+module_param_named(p2p, ath10k_p2p, uint, 0644);
+MODULE_PARM_DESC(debug_mask, "Debugging mask");
+MODULE_PARM_DESC(uart_print, "Uart target debugging");
+MODULE_PARM_DESC(p2p, "Enable ath10k P2P support");
+
+static const struct ath10k_hw_params ath10k_hw_params_list[] = {
+	{
+		.id = QCA988X_HW_1_0_VERSION,
+		.name = "qca988x hw1.0",
+		.patch_load_addr = QCA988X_HW_1_0_PATCH_LOAD_ADDR,
+		.fw = {
+			.dir = QCA988X_HW_1_0_FW_DIR,
+			.fw = QCA988X_HW_1_0_FW_FILE,
+			.otp = QCA988X_HW_1_0_OTP_FILE,
+			.board = QCA988X_HW_1_0_BOARD_DATA_FILE,
+		},
+	},
+	{
+		.id = QCA988X_HW_2_0_VERSION,
+		.name = "qca988x hw2.0",
+		.patch_load_addr = QCA988X_HW_2_0_PATCH_LOAD_ADDR,
+		.fw = {
+			.dir = QCA988X_HW_2_0_FW_DIR,
+			.fw = QCA988X_HW_2_0_FW_FILE,
+			.otp = QCA988X_HW_2_0_OTP_FILE,
+			.board = QCA988X_HW_2_0_BOARD_DATA_FILE,
+		},
+	},
+};
+
+static void ath10k_send_suspend_complete(struct ath10k *ar)
+{
+	ath10k_dbg(ATH10K_DBG_CORE, "%s\n", __func__);
+
+	ar->is_target_paused = true;
+	wake_up(&ar->event_queue);
+}
+
+static int ath10k_check_fw_version(struct ath10k *ar)
+{
+	char version[32];
+
+	if (ar->fw_version_major >= SUPPORTED_FW_MAJOR &&
+	    ar->fw_version_minor >= SUPPORTED_FW_MINOR &&
+	    ar->fw_version_release >= SUPPORTED_FW_RELEASE &&
+	    ar->fw_version_build >= SUPPORTED_FW_BUILD)
+		return 0;
+
+	snprintf(version, sizeof(version), "%u.%u.%u.%u",
+		 SUPPORTED_FW_MAJOR, SUPPORTED_FW_MINOR,
+		 SUPPORTED_FW_RELEASE, SUPPORTED_FW_BUILD);
+
+	ath10k_warn("WARNING: Firmware version %s is not officially supported.\n",
+		    ar->hw->wiphy->fw_version);
+	ath10k_warn("Please upgrade to version %s (or newer)\n", version);
+
+	return 0;
+}
+
+static int ath10k_init_connect_htc(struct ath10k *ar)
+{
+	int status;
+
+	status = ath10k_wmi_connect_htc_service(ar);
+	if (status)
+		goto conn_fail;
+
+	/* Start HTC */
+	status = ath10k_htc_start(ar->htc);
+	if (status)
+		goto conn_fail;
+
+	/* Wait for WMI event to be ready */
+	status = ath10k_wmi_wait_for_service_ready(ar);
+	if (status <= 0) {
+		ath10k_warn("wmi service ready event not received");
+		status = -ETIMEDOUT;
+		goto timeout;
+	}
+
+	ath10k_dbg(ATH10K_DBG_CORE, "core wmi ready\n");
+	return 0;
+
+timeout:
+	ath10k_htc_stop(ar->htc);
+conn_fail:
+	return status;
+}
+
+static int ath10k_init_configure_target(struct ath10k *ar)
+{
+	u32 param_host;
+	int ret;
+
+	/* tell target which HTC version it is used*/
+	ret = ath10k_bmi_write32(ar, hi_app_host_interest,
+				 HTC_PROTOCOL_VERSION);
+	if (ret) {
+		ath10k_err("settings HTC version failed\n");
+		return ret;
+	}
+
+	/* set the firmware mode to STA/IBSS/AP */
+	ret = ath10k_bmi_read32(ar, hi_option_flag, &param_host);
+	if (ret) {
+		ath10k_err("setting firmware mode (1/2) failed\n");
+		return ret;
+	}
+
+	/* TODO following parameters need to be re-visited. */
+	/* num_device */
+	param_host |= (1 << HI_OPTION_NUM_DEV_SHIFT);
+	/* Firmware mode */
+	/* FIXME: Why FW_MODE_AP ??.*/
+	param_host |= (HI_OPTION_FW_MODE_AP << HI_OPTION_FW_MODE_SHIFT);
+	/* mac_addr_method */
+	param_host |= (1 << HI_OPTION_MAC_ADDR_METHOD_SHIFT);
+	/* firmware_bridge */
+	param_host |= (0 << HI_OPTION_FW_BRIDGE_SHIFT);
+	/* fwsubmode */
+	param_host |= (0 << HI_OPTION_FW_SUBMODE_SHIFT);
+
+	ret = ath10k_bmi_write32(ar, hi_option_flag, param_host);
+	if (ret) {
+		ath10k_err("setting firmware mode (2/2) failed\n");
+		return ret;
+	}
+
+	/* We do all byte-swapping on the host */
+	ret = ath10k_bmi_write32(ar, hi_be, 0);
+	if (ret) {
+		ath10k_err("setting host CPU BE mode failed\n");
+		return ret;
+	}
+
+	/* FW descriptor/Data swap flags */
+	ret = ath10k_bmi_write32(ar, hi_fw_swap, 0);
+
+	if (ret) {
+		ath10k_err("setting FW data/desc swap flags failed\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static const struct firmware *ath10k_fetch_fw_file(struct ath10k *ar,
+						   const char *dir,
+						   const char *file)
+{
+	char filename[100];
+	const struct firmware *fw;
+	int ret;
+
+	if (file == NULL)
+		return ERR_PTR(-ENOENT);
+
+	if (dir == NULL)
+		dir = ".";
+
+	snprintf(filename, sizeof(filename), "%s/%s", dir, file);
+	ret = request_firmware(&fw, filename, ar->dev);
+	if (ret)
+		return ERR_PTR(ret);
+
+	return fw;
+}
+
+static int ath10k_push_board_ext_data(struct ath10k *ar,
+				      const struct firmware *fw)
+{
+	u32 board_data_size = QCA988X_BOARD_DATA_SZ;
+	u32 board_ext_data_size = QCA988X_BOARD_EXT_DATA_SZ;
+	u32 board_ext_data_addr;
+	int ret;
+
+	ret = ath10k_bmi_read32(ar, hi_board_ext_data, &board_ext_data_addr);
+	if (ret) {
+		ath10k_err("could not read board ext data addr (%d)\n", ret);
+		return ret;
+	}
+
+	ath10k_dbg(ATH10K_DBG_CORE,
+		   "ath10k: Board extended Data download addr: 0x%x\n",
+		   board_ext_data_addr);
+
+	if (board_ext_data_addr == 0)
+		return 0;
+
+	if (fw->size != (board_data_size + board_ext_data_size)) {
+		ath10k_err("invalid board (ext) data sizes %zu != %d+%d\n",
+			   fw->size, board_data_size, board_ext_data_size);
+		return -EINVAL;
+	}
+
+	ret = ath10k_bmi_write_memory(ar, board_ext_data_addr,
+				      fw->data + board_data_size,
+				      board_ext_data_size);
+	if (ret) {
+		ath10k_err("could not write board ext data (%d)\n", ret);
+		return ret;
+	}
+
+	ret = ath10k_bmi_write32(ar, hi_board_ext_data_config,
+				 (board_ext_data_size << 16) | 1);
+	if (ret) {
+		ath10k_err("could not write board ext data bit (%d)\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int ath10k_download_board_data(struct ath10k *ar)
+{
+	u32 board_data_size = QCA988X_BOARD_DATA_SZ;
+	u32 address;
+	const struct firmware *fw;
+	int ret;
+
+	fw = ath10k_fetch_fw_file(ar, ar->hw_params.fw.dir,
+				  ar->hw_params.fw.board);
+	if (IS_ERR(fw)) {
+		ath10k_err("could not fetch board data fw file (%ld)\n",
+			   PTR_ERR(fw));
+		return PTR_ERR(fw);
+	}
+
+	ret = ath10k_push_board_ext_data(ar, fw);
+	if (ret) {
+		ath10k_err("could not push board ext data (%d)\n", ret);
+		goto exit;
+	}
+
+	ret = ath10k_bmi_read32(ar, hi_board_data, &address);
+	if (ret) {
+		ath10k_err("could not read board data addr (%d)\n", ret);
+		goto exit;
+	}
+
+	ret = ath10k_bmi_write_memory(ar, address, fw->data,
+				      min_t(u32, board_data_size, fw->size));
+	if (ret) {
+		ath10k_err("could not write board data (%d)\n", ret);
+		goto exit;
+	}
+
+	ret = ath10k_bmi_write32(ar, hi_board_data_initialized, 1);
+	if (ret) {
+		ath10k_err("could not write board data bit (%d)\n", ret);
+		goto exit;
+	}
+
+exit:
+	release_firmware(fw);
+	return ret;
+}
+
+static int ath10k_download_and_run_otp(struct ath10k *ar)
+{
+	const struct firmware *fw;
+	u32 address;
+	u32 exec_param;
+	int ret;
+
+	/* OTP is optional */
+
+	if (ar->hw_params.fw.otp == NULL) {
+		ath10k_info("otp file not defined\n");
+		return 0;
+	}
+
+	address = ar->hw_params.patch_load_addr;
+
+	fw = ath10k_fetch_fw_file(ar, ar->hw_params.fw.dir,
+				  ar->hw_params.fw.otp);
+	if (IS_ERR(fw)) {
+		ath10k_warn("could not fetch otp (%ld)\n", PTR_ERR(fw));
+		return 0;
+	}
+
+	ret = ath10k_bmi_fast_download(ar, address, fw->data, fw->size);
+	if (ret) {
+		ath10k_err("could not write otp (%d)\n", ret);
+		goto exit;
+	}
+
+	exec_param = 0;
+	ret = ath10k_bmi_execute(ar, address, &exec_param);
+	if (ret) {
+		ath10k_err("could not execute otp (%d)\n", ret);
+		goto exit;
+	}
+
+exit:
+	release_firmware(fw);
+	return ret;
+}
+
+static int ath10k_download_fw(struct ath10k *ar)
+{
+	const struct firmware *fw;
+	u32 address;
+	int ret;
+
+	if (ar->hw_params.fw.fw == NULL)
+		return -EINVAL;
+
+	address = ar->hw_params.patch_load_addr;
+
+	fw = ath10k_fetch_fw_file(ar, ar->hw_params.fw.dir,
+				  ar->hw_params.fw.fw);
+	if (IS_ERR(fw)) {
+		ath10k_err("could not fetch fw (%ld)\n", PTR_ERR(fw));
+		return PTR_ERR(fw);
+	}
+
+	ret = ath10k_bmi_fast_download(ar, address, fw->data, fw->size);
+	if (ret) {
+		ath10k_err("could not write fw (%d)\n", ret);
+		goto exit;
+	}
+
+exit:
+	release_firmware(fw);
+	return ret;
+}
+
+static int ath10k_init_download_firmware(struct ath10k *ar)
+{
+	int ret;
+
+	ret = ath10k_download_board_data(ar);
+	if (ret)
+		return ret;
+
+	ret = ath10k_download_and_run_otp(ar);
+	if (ret)
+		return ret;
+
+	ret = ath10k_download_fw(ar);
+	if (ret)
+		return ret;
+
+	return ret;
+}
+
+static int ath10k_init_uart(struct ath10k *ar)
+{
+	int ret;
+
+	/*
+	 * Explicitly setting UART prints to zero as target turns it on
+	 * based on scratch registers.
+	 */
+	ret = ath10k_bmi_write32(ar, hi_serial_enable, 0);
+	if (ret) {
+		ath10k_warn("could not disable UART prints (%d)\n", ret);
+		return ret;
+	}
+
+	if (!uart_print) {
+		ath10k_info("UART prints disabled\n");
+		return 0;
+	}
+
+	ret = ath10k_bmi_write32(ar, hi_dbg_uart_txpin, 7);
+	if (ret) {
+		ath10k_warn("could not enable UART prints (%d)\n", ret);
+		return ret;
+	}
+
+	ret = ath10k_bmi_write32(ar, hi_serial_enable, 1);
+	if (ret) {
+		ath10k_warn("could not enable UART prints (%d)\n", ret);
+		return ret;
+	}
+
+	ath10k_info("UART prints enabled\n");
+	return 0;
+}
+
+static int ath10k_init_hw_params(struct ath10k *ar)
+{
+	const struct ath10k_hw_params *uninitialized_var(hw_params);
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(ath10k_hw_params_list); i++) {
+		hw_params = &ath10k_hw_params_list[i];
+
+		if (hw_params->id == ar->target_version)
+			break;
+	}
+
+	if (i == ARRAY_SIZE(ath10k_hw_params_list)) {
+		ath10k_err("Unsupported hardware version: 0x%x\n",
+			   ar->target_version);
+		return -EINVAL;
+	}
+
+	ar->hw_params = *hw_params;
+
+	ath10k_info("Hardware name %s version 0x%x\n",
+		    ar->hw_params.name, ar->target_version);
+
+	return 0;
+}
+
+struct ath10k *ath10k_core_create(void *hif_priv, struct device *dev,
+				  enum ath10k_bus bus,
+				  const struct ath10k_hif_ops *hif_ops)
+{
+	struct ath10k *ar;
+
+	ar = ath10k_mac_create();
+	if (!ar)
+		return NULL;
+
+	ar->ath_common.priv = ar;
+	ar->ath_common.hw = ar->hw;
+
+	ar->p2p = !!ath10k_p2p;
+	ar->dev = dev;
+
+	ar->hif.priv = hif_priv;
+	ar->hif.ops = hif_ops;
+	ar->hif.bus = bus;
+
+	ar->free_vdev_map = 0xFF; /* 8 vdevs */
+
+	init_completion(&ar->scan.started);
+	init_completion(&ar->scan.completed);
+	init_completion(&ar->scan.on_channel);
+
+	init_completion(&ar->install_key_done);
+	init_completion(&ar->vdev_setup_done);
+
+	setup_timer(&ar->scan.timeout, ath10k_reset_scan, (unsigned long)ar);
+
+	ar->workqueue = create_singlethread_workqueue("ath10k_wq");
+	if (!ar->workqueue)
+		goto err_wq;
+
+	mutex_init(&ar->conf_mutex);
+	spin_lock_init(&ar->data_lock);
+
+	INIT_LIST_HEAD(&ar->peers);
+	init_waitqueue_head(&ar->peer_mapping_wq);
+
+	init_completion(&ar->offchan_tx_completed);
+	INIT_WORK(&ar->offchan_tx_work, ath10k_offchan_tx_work);
+	skb_queue_head_init(&ar->offchan_tx_queue);
+
+	init_waitqueue_head(&ar->event_queue);
+
+	return ar;
+
+err_wq:
+	ath10k_mac_destroy(ar);
+	return NULL;
+}
+EXPORT_SYMBOL(ath10k_core_create);
+
+void ath10k_core_destroy(struct ath10k *ar)
+{
+	flush_workqueue(ar->workqueue);
+	destroy_workqueue(ar->workqueue);
+
+	ath10k_mac_destroy(ar);
+}
+EXPORT_SYMBOL(ath10k_core_destroy);
+
+
+int ath10k_core_register(struct ath10k *ar)
+{
+	struct ath10k_htc_ops htc_ops;
+	struct bmi_target_info target_info;
+	int status;
+
+	memset(&target_info, 0, sizeof(target_info));
+	status = ath10k_bmi_get_target_info(ar, &target_info);
+	if (status)
+		goto err;
+
+	ar->target_version = target_info.version;
+	ar->hw->wiphy->hw_version = target_info.version;
+
+	status = ath10k_init_hw_params(ar);
+	if (status)
+		goto err;
+
+	if (ath10k_init_configure_target(ar)) {
+		status = -EINVAL;
+		goto err;
+	}
+
+	status = ath10k_init_download_firmware(ar);
+	if (status)
+		goto err;
+
+	status = ath10k_init_uart(ar);
+	if (status)
+		goto err;
+
+	htc_ops.target_send_suspend_complete = ath10k_send_suspend_complete;
+
+	ar->htc = ath10k_htc_create(ar, &htc_ops);
+	if (IS_ERR(ar->htc)) {
+		status = PTR_ERR(ar->htc);
+		ath10k_err("could not create HTC (%d)\n", status);
+		goto err;
+	}
+
+	status = ath10k_bmi_done(ar);
+	if (status)
+		goto err_htc_destroy;
+
+	status = ath10k_wmi_attach(ar);
+	if (status) {
+		ath10k_err("WMI attach failed: %d\n", status);
+		goto err_htc_destroy;
+	}
+
+	status = ath10k_htc_wait_target(ar->htc);
+	if (status)
+		goto err_wmi_detach;
+
+	ar->htt = ath10k_htt_attach(ar);
+	if (!ar->htt) {
+		status = -ENOMEM;
+		goto err_wmi_detach;
+	}
+
+	status = ath10k_init_connect_htc(ar);
+	if (status)
+		goto err_htt_detach;
+
+	ath10k_info("firmware %s booted\n", ar->hw->wiphy->fw_version);
+
+	status = ath10k_check_fw_version(ar);
+	if (status)
+		goto err_disconnect_htc;
+
+	status = ath10k_wmi_cmd_init(ar);
+	if (status) {
+		ath10k_err("could not send WMI init command (%d)\n", status);
+		goto err_disconnect_htc;
+	}
+
+	status = ath10k_wmi_wait_for_unified_ready(ar);
+	if (status <= 0) {
+		ath10k_err("wmi unified ready event not received\n");
+		status = -ETIMEDOUT;
+		goto err_disconnect_htc;
+	}
+
+	status = ath10k_htt_attach_target(ar->htt);
+	if (status)
+		goto err_disconnect_htc;
+
+	status = ath10k_mac_register(ar);
+	if (status)
+		goto err_disconnect_htc;
+
+	status = ath10k_debug_create(ar);
+	if (status) {
+		ath10k_err("unable to initialize debugfs\n");
+		goto err_unregister_mac;
+	}
+
+	return 0;
+
+err_unregister_mac:
+	ath10k_mac_unregister(ar);
+err_disconnect_htc:
+	ath10k_htc_stop(ar->htc);
+err_htt_detach:
+	ath10k_htt_detach(ar->htt);
+err_wmi_detach:
+	ath10k_wmi_detach(ar);
+err_htc_destroy:
+	ath10k_htc_destroy(ar->htc);
+err:
+	return status;
+}
+EXPORT_SYMBOL(ath10k_core_register);
+
+void ath10k_core_unregister(struct ath10k *ar)
+{
+	/* We must unregister from mac80211 before we stop HTC and HIF.
+	 * Otherwise we will fail to submit commands to FW and mac80211 will be
+	 * unhappy about callback failures. */
+	ath10k_mac_unregister(ar);
+	ath10k_htc_stop(ar->htc);
+	ath10k_htt_detach(ar->htt);
+	ath10k_wmi_detach(ar);
+	ath10k_htc_destroy(ar->htc);
+}
+EXPORT_SYMBOL(ath10k_core_unregister);
+
+int ath10k_core_target_suspend(struct ath10k *ar)
+{
+	int ret;
+
+	ath10k_dbg(ATH10K_DBG_CORE, "%s: called", __func__);
+
+	ret = ath10k_wmi_pdev_suspend_target(ar);
+	if (ret)
+		ath10k_warn("could not suspend target (%d)\n", ret);
+
+	return ret;
+}
+EXPORT_SYMBOL(ath10k_core_target_suspend);
+
+int ath10k_core_target_resume(struct ath10k *ar)
+{
+	int ret;
+
+	ath10k_dbg(ATH10K_DBG_CORE, "%s: called", __func__);
+
+	ret = ath10k_wmi_pdev_resume_target(ar);
+	if (ret)
+		ath10k_warn("could not resume target (%d)\n", ret);
+
+	return ret;
+}
+EXPORT_SYMBOL(ath10k_core_target_resume);
+
+MODULE_AUTHOR("Qualcomm Atheros");
+MODULE_DESCRIPTION("Core module for QCA988X PCIe devices.");
+MODULE_LICENSE("Dual BSD/GPL");

drivers/net/wireless/ath/ath10k/core.h

@@ -0,0 +1,369 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _CORE_H_
+#define _CORE_H_
+
+#include <linux/completion.h>
+#include <linux/if_ether.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+
+#include "htc.h"
+#include "hw.h"
+#include "targaddrs.h"
+#include "wmi.h"
+#include "../ath.h"
+#include "../regd.h"
+
+#define MS(_v, _f) (((_v) & _f##_MASK) >> _f##_LSB)
+#define SM(_v, _f) (((_v) << _f##_LSB) & _f##_MASK)
+#define WO(_f)      ((_f##_OFFSET) >> 2)
+
+#define ATH10K_SCAN_ID 0
+#define WMI_READY_TIMEOUT (5 * HZ)
+#define ATH10K_FLUSH_TIMEOUT_HZ (5*HZ)
+
+/* Antenna noise floor */
+#define ATH10K_DEFAULT_NOISE_FLOOR -95
+
+struct ath10k;
+
+enum ath10k_bus {
+	ATH10K_BUS_PCI,
+};
+
+struct ath10k_skb_cb {
+	dma_addr_t paddr;
+	bool is_mapped;
+	bool is_aborted;
+
+	struct {
+		u8 vdev_id;
+		u16 msdu_id;
+		u8 tid;
+		bool is_offchan;
+		bool is_conf;
+		bool discard;
+		bool no_ack;
+		u8 refcount;
+		struct sk_buff *txfrag;
+		struct sk_buff *msdu;
+	} __packed htt;
+
+	/* 4 bytes left on 64bit arch */
+} __packed;
+
+static inline struct ath10k_skb_cb *ATH10K_SKB_CB(struct sk_buff *skb)
+{
+	BUILD_BUG_ON(sizeof(struct ath10k_skb_cb) >
+		     IEEE80211_TX_INFO_DRIVER_DATA_SIZE);
+	return (struct ath10k_skb_cb *)&IEEE80211_SKB_CB(skb)->driver_data;
+}
+
+static inline int ath10k_skb_map(struct device *dev, struct sk_buff *skb)
+{
+	if (ATH10K_SKB_CB(skb)->is_mapped)
+		return -EINVAL;
+
+	ATH10K_SKB_CB(skb)->paddr = dma_map_single(dev, skb->data, skb->len,
+						   DMA_TO_DEVICE);
+
+	if (unlikely(dma_mapping_error(dev, ATH10K_SKB_CB(skb)->paddr)))
+		return -EIO;
+
+	ATH10K_SKB_CB(skb)->is_mapped = true;
+	return 0;
+}
+
+static inline int ath10k_skb_unmap(struct device *dev, struct sk_buff *skb)
+{
+	if (!ATH10K_SKB_CB(skb)->is_mapped)
+		return -EINVAL;
+
+	dma_unmap_single(dev, ATH10K_SKB_CB(skb)->paddr, skb->len,
+			 DMA_TO_DEVICE);
+	ATH10K_SKB_CB(skb)->is_mapped = false;
+	return 0;
+}
+
+static inline u32 host_interest_item_address(u32 item_offset)
+{
+	return QCA988X_HOST_INTEREST_ADDRESS + item_offset;
+}
+
+struct ath10k_bmi {
+	bool done_sent;
+};
+
+struct ath10k_wmi {
+	enum ath10k_htc_ep_id eid;
+	struct completion service_ready;
+	struct completion unified_ready;
+	atomic_t pending_tx_count;
+	wait_queue_head_t wq;
+
+	struct sk_buff_head wmi_event_list;
+	struct work_struct wmi_event_work;
+};
+
+struct ath10k_peer_stat {
+	u8 peer_macaddr[ETH_ALEN];
+	u32 peer_rssi;
+	u32 peer_tx_rate;
+};
+
+struct ath10k_target_stats {
+	/* PDEV stats */
+	s32 ch_noise_floor;
+	u32 tx_frame_count;
+	u32 rx_frame_count;
+	u32 rx_clear_count;
+	u32 cycle_count;
+	u32 phy_err_count;
+	u32 chan_tx_power;
+
+	/* PDEV TX stats */
+	s32 comp_queued;
+	s32 comp_delivered;
+	s32 msdu_enqued;
+	s32 mpdu_enqued;
+	s32 wmm_drop;
+	s32 local_enqued;
+	s32 local_freed;
+	s32 hw_queued;
+	s32 hw_reaped;
+	s32 underrun;
+	s32 tx_abort;
+	s32 mpdus_requed;
+	u32 tx_ko;
+	u32 data_rc;
+	u32 self_triggers;
+	u32 sw_retry_failure;
+	u32 illgl_rate_phy_err;
+	u32 pdev_cont_xretry;
+	u32 pdev_tx_timeout;
+	u32 pdev_resets;
+	u32 phy_underrun;
+	u32 txop_ovf;
+
+	/* PDEV RX stats */
+	s32 mid_ppdu_route_change;
+	s32 status_rcvd;
+	s32 r0_frags;
+	s32 r1_frags;
+	s32 r2_frags;
+	s32 r3_frags;
+	s32 htt_msdus;
+	s32 htt_mpdus;
+	s32 loc_msdus;
+	s32 loc_mpdus;
+	s32 oversize_amsdu;
+	s32 phy_errs;
+	s32 phy_err_drop;
+	s32 mpdu_errs;
+
+	/* VDEV STATS */
+
+	/* PEER STATS */
+	u8 peers;
+	struct ath10k_peer_stat peer_stat[TARGET_NUM_PEERS];
+
+	/* TODO: Beacon filter stats */
+
+};
+
+#define ATH10K_MAX_NUM_PEER_IDS (1 << 11) /* htt rx_desc limit */
+
+struct ath10k_peer {
+	struct list_head list;
+	int vdev_id;
+	u8 addr[ETH_ALEN];
+	DECLARE_BITMAP(peer_ids, ATH10K_MAX_NUM_PEER_IDS);
+	struct ieee80211_key_conf *keys[WMI_MAX_KEY_INDEX + 1];
+};
+
+#define ATH10K_VDEV_SETUP_TIMEOUT_HZ (5*HZ)
+
+struct ath10k_vif {
+	u32 vdev_id;
+	enum wmi_vdev_type vdev_type;
+	enum wmi_vdev_subtype vdev_subtype;
+	u32 beacon_interval;
+	u32 dtim_period;
+
+	struct ath10k *ar;
+	struct ieee80211_vif *vif;
+
+	struct ieee80211_key_conf *wep_keys[WMI_MAX_KEY_INDEX + 1];
+	u8 def_wep_key_index;
+
+	u16 tx_seq_no;
+
+	union {
+		struct {
+			u8 bssid[ETH_ALEN];
+			u32 uapsd;
+		} sta;
+		struct {
+			/* 127 stations; wmi limit */
+			u8 tim_bitmap[16];
+			u8 tim_len;
+			u32 ssid_len;
+			u8 ssid[IEEE80211_MAX_SSID_LEN];
+			bool hidden_ssid;
+			/* P2P_IE with NoA attribute for P2P_GO case */
+			u32 noa_len;
+			u8 *noa_data;
+		} ap;
+		struct {
+			u8 bssid[ETH_ALEN];
+		} ibss;
+	} u;
+};
+
+struct ath10k_vif_iter {
+	u32 vdev_id;
+	struct ath10k_vif *arvif;
+};
+
+struct ath10k_debug {
+	struct dentry *debugfs_phy;
+
+	struct ath10k_target_stats target_stats;
+	u32 wmi_service_bitmap[WMI_SERVICE_BM_SIZE];
+
+	struct completion event_stats_compl;
+};
+
+struct ath10k {
+	struct ath_common ath_common;
+	struct ieee80211_hw *hw;
+	struct device *dev;
+	u8 mac_addr[ETH_ALEN];
+
+	u32 target_version;
+	u8 fw_version_major;
+	u32 fw_version_minor;
+	u16 fw_version_release;
+	u16 fw_version_build;
+	u32 phy_capability;
+	u32 hw_min_tx_power;
+	u32 hw_max_tx_power;
+	u32 ht_cap_info;
+	u32 vht_cap_info;
+
+	struct targetdef *targetdef;
+	struct hostdef *hostdef;
+
+	bool p2p;
+
+	struct {
+		void *priv;
+		enum ath10k_bus bus;
+		const struct ath10k_hif_ops *ops;
+	} hif;
+
+	struct ath10k_wmi wmi;
+
+	wait_queue_head_t event_queue;
+	bool is_target_paused;
+
+	struct ath10k_bmi bmi;
+
+	struct ath10k_htc *htc;
+	struct ath10k_htt *htt;
+
+	struct ath10k_hw_params {
+		u32 id;
+		const char *name;
+		u32 patch_load_addr;
+
+		struct ath10k_hw_params_fw {
+			const char *dir;
+			const char *fw;
+			const char *otp;
+			const char *board;
+		} fw;
+	} hw_params;
+
+	struct {
+		struct completion started;
+		struct completion completed;
+		struct completion on_channel;
+		struct timer_list timeout;
+		bool is_roc;
+		bool in_progress;
+		bool aborting;
+		int vdev_id;
+		int roc_freq;
+	} scan;
+
+	struct {
+		struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
+	} mac;
+
+	/* should never be NULL; needed for regular htt rx */
+	struct ieee80211_channel *rx_channel;
+
+	/* valid during scan; needed for mgmt rx during scan */
+	struct ieee80211_channel *scan_channel;
+
+	int free_vdev_map;
+	int monitor_vdev_id;
+	bool monitor_enabled;
+	bool monitor_present;
+	unsigned int filter_flags;
+
+	struct wmi_pdev_set_wmm_params_arg wmm_params;
+	struct completion install_key_done;
+
+	struct completion vdev_setup_done;
+
+	struct workqueue_struct *workqueue;
+
+	/* prevents concurrent FW reconfiguration */
+	struct mutex conf_mutex;
+
+	/* protects shared structure data */
+	spinlock_t data_lock;
+
+	struct list_head peers;
+	wait_queue_head_t peer_mapping_wq;
+
+	struct work_struct offchan_tx_work;
+	struct sk_buff_head offchan_tx_queue;
+	struct completion offchan_tx_completed;
+	struct sk_buff *offchan_tx_skb;
+
+#ifdef CONFIG_ATH10K_DEBUGFS
+	struct ath10k_debug debug;
+#endif
+};
+
+struct ath10k *ath10k_core_create(void *hif_priv, struct device *dev,
+				  enum ath10k_bus bus,
+				  const struct ath10k_hif_ops *hif_ops);
+void ath10k_core_destroy(struct ath10k *ar);
+
+int ath10k_core_register(struct ath10k *ar);
+void ath10k_core_unregister(struct ath10k *ar);
+
+int ath10k_core_target_suspend(struct ath10k *ar);
+int ath10k_core_target_resume(struct ath10k *ar);
+
+#endif /* _CORE_H_ */

drivers/net/wireless/ath/ath10k/debug.c

@@ -0,0 +1,503 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/module.h>
+#include <linux/debugfs.h>
+
+#include "core.h"
+#include "debug.h"
+
+static int ath10k_printk(const char *level, const char *fmt, ...)
+{
+	struct va_format vaf;
+	va_list args;
+	int rtn;
+
+	va_start(args, fmt);
+
+	vaf.fmt = fmt;
+	vaf.va = &args;
+
+	rtn = printk("%sath10k: %pV", level, &vaf);
+
+	va_end(args);
+
+	return rtn;
+}
+
+int ath10k_info(const char *fmt, ...)
+{
+	struct va_format vaf = {
+		.fmt = fmt,
+	};
+	va_list args;
+	int ret;
+
+	va_start(args, fmt);
+	vaf.va = &args;
+	ret = ath10k_printk(KERN_INFO, "%pV", &vaf);
+	trace_ath10k_log_info(&vaf);
+	va_end(args);
+
+	return ret;
+}
+EXPORT_SYMBOL(ath10k_info);
+
+int ath10k_err(const char *fmt, ...)
+{
+	struct va_format vaf = {
+		.fmt = fmt,
+	};
+	va_list args;
+	int ret;
+
+	va_start(args, fmt);
+	vaf.va = &args;
+	ret = ath10k_printk(KERN_ERR, "%pV", &vaf);
+	trace_ath10k_log_err(&vaf);
+	va_end(args);
+
+	return ret;
+}
+EXPORT_SYMBOL(ath10k_err);
+
+int ath10k_warn(const char *fmt, ...)
+{
+	struct va_format vaf = {
+		.fmt = fmt,
+	};
+	va_list args;
+	int ret = 0;
+
+	va_start(args, fmt);
+	vaf.va = &args;
+
+	if (net_ratelimit())
+		ret = ath10k_printk(KERN_WARNING, "%pV", &vaf);
+
+	trace_ath10k_log_warn(&vaf);
+
+	va_end(args);
+
+	return ret;
+}
+EXPORT_SYMBOL(ath10k_warn);
+
+#ifdef CONFIG_ATH10K_DEBUGFS
+
+void ath10k_debug_read_service_map(struct ath10k *ar,
+				   void *service_map,
+				   size_t map_size)
+{
+	memcpy(ar->debug.wmi_service_bitmap, service_map, map_size);
+}
+
+static ssize_t ath10k_read_wmi_services(struct file *file,
+					char __user *user_buf,
+					size_t count, loff_t *ppos)
+{
+	struct ath10k *ar = file->private_data;
+	char *buf;
+	unsigned int len = 0, buf_len = 1500;
+	const char *status;
+	ssize_t ret_cnt;
+	int i;
+
+	buf = kzalloc(buf_len, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	mutex_lock(&ar->conf_mutex);
+
+	if (len > buf_len)
+		len = buf_len;
+
+	for (i = 0; i < WMI_SERVICE_LAST; i++) {
+		if (WMI_SERVICE_IS_ENABLED(ar->debug.wmi_service_bitmap, i))
+			status = "enabled";
+		else
+			status = "disabled";
+
+		len += scnprintf(buf + len, buf_len - len,
+				 "0x%02x - %20s - %s\n",
+				 i, wmi_service_name(i), status);
+	}
+
+	ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
+
+	mutex_unlock(&ar->conf_mutex);
+
+	kfree(buf);
+	return ret_cnt;
+}
+
+static const struct file_operations fops_wmi_services = {
+	.read = ath10k_read_wmi_services,
+	.open = simple_open,
+	.owner = THIS_MODULE,
+	.llseek = default_llseek,
+};
+
+void ath10k_debug_read_target_stats(struct ath10k *ar,
+				    struct wmi_stats_event *ev)
+{
+	u8 *tmp = ev->data;
+	struct ath10k_target_stats *stats;
+	int num_pdev_stats, num_vdev_stats, num_peer_stats;
+	struct wmi_pdev_stats *ps;
+	int i;
+
+	mutex_lock(&ar->conf_mutex);
+
+	stats = &ar->debug.target_stats;
+
+	num_pdev_stats = __le32_to_cpu(ev->num_pdev_stats); /* 0 or 1 */
+	num_vdev_stats = __le32_to_cpu(ev->num_vdev_stats); /* 0 or max vdevs */
+	num_peer_stats = __le32_to_cpu(ev->num_peer_stats); /* 0 or max peers */
+
+	if (num_pdev_stats) {
+		ps = (struct wmi_pdev_stats *)tmp;
+
+		stats->ch_noise_floor = __le32_to_cpu(ps->chan_nf);
+		stats->tx_frame_count = __le32_to_cpu(ps->tx_frame_count);
+		stats->rx_frame_count = __le32_to_cpu(ps->rx_frame_count);
+		stats->rx_clear_count = __le32_to_cpu(ps->rx_clear_count);
+		stats->cycle_count = __le32_to_cpu(ps->cycle_count);
+		stats->phy_err_count = __le32_to_cpu(ps->phy_err_count);
+		stats->chan_tx_power = __le32_to_cpu(ps->chan_tx_pwr);
+
+		stats->comp_queued = __le32_to_cpu(ps->wal.tx.comp_queued);
+		stats->comp_delivered =
+			__le32_to_cpu(ps->wal.tx.comp_delivered);
+		stats->msdu_enqued = __le32_to_cpu(ps->wal.tx.msdu_enqued);
+		stats->mpdu_enqued = __le32_to_cpu(ps->wal.tx.mpdu_enqued);
+		stats->wmm_drop = __le32_to_cpu(ps->wal.tx.wmm_drop);
+		stats->local_enqued = __le32_to_cpu(ps->wal.tx.local_enqued);
+		stats->local_freed = __le32_to_cpu(ps->wal.tx.local_freed);
+		stats->hw_queued = __le32_to_cpu(ps->wal.tx.hw_queued);
+		stats->hw_reaped = __le32_to_cpu(ps->wal.tx.hw_reaped);
+		stats->underrun = __le32_to_cpu(ps->wal.tx.underrun);
+		stats->tx_abort = __le32_to_cpu(ps->wal.tx.tx_abort);
+		stats->mpdus_requed = __le32_to_cpu(ps->wal.tx.mpdus_requed);
+		stats->tx_ko = __le32_to_cpu(ps->wal.tx.tx_ko);
+		stats->data_rc = __le32_to_cpu(ps->wal.tx.data_rc);
+		stats->self_triggers = __le32_to_cpu(ps->wal.tx.self_triggers);
+		stats->sw_retry_failure =
+			__le32_to_cpu(ps->wal.tx.sw_retry_failure);
+		stats->illgl_rate_phy_err =
+			__le32_to_cpu(ps->wal.tx.illgl_rate_phy_err);
+		stats->pdev_cont_xretry =
+			__le32_to_cpu(ps->wal.tx.pdev_cont_xretry);
+		stats->pdev_tx_timeout =
+			__le32_to_cpu(ps->wal.tx.pdev_tx_timeout);
+		stats->pdev_resets = __le32_to_cpu(ps->wal.tx.pdev_resets);
+		stats->phy_underrun = __le32_to_cpu(ps->wal.tx.phy_underrun);
+		stats->txop_ovf = __le32_to_cpu(ps->wal.tx.txop_ovf);
+
+		stats->mid_ppdu_route_change =
+			__le32_to_cpu(ps->wal.rx.mid_ppdu_route_change);
+		stats->status_rcvd = __le32_to_cpu(ps->wal.rx.status_rcvd);
+		stats->r0_frags = __le32_to_cpu(ps->wal.rx.r0_frags);
+		stats->r1_frags = __le32_to_cpu(ps->wal.rx.r1_frags);
+		stats->r2_frags = __le32_to_cpu(ps->wal.rx.r2_frags);
+		stats->r3_frags = __le32_to_cpu(ps->wal.rx.r3_frags);
+		stats->htt_msdus = __le32_to_cpu(ps->wal.rx.htt_msdus);
+		stats->htt_mpdus = __le32_to_cpu(ps->wal.rx.htt_mpdus);
+		stats->loc_msdus = __le32_to_cpu(ps->wal.rx.loc_msdus);
+		stats->loc_mpdus = __le32_to_cpu(ps->wal.rx.loc_mpdus);
+		stats->oversize_amsdu =
+			__le32_to_cpu(ps->wal.rx.oversize_amsdu);
+		stats->phy_errs = __le32_to_cpu(ps->wal.rx.phy_errs);
+		stats->phy_err_drop = __le32_to_cpu(ps->wal.rx.phy_err_drop);
+		stats->mpdu_errs = __le32_to_cpu(ps->wal.rx.mpdu_errs);
+
+		tmp += sizeof(struct wmi_pdev_stats);
+	}
+
+	/* 0 or max vdevs */
+	/* Currently firmware does not support VDEV stats */
+	if (num_vdev_stats) {
+		struct wmi_vdev_stats *vdev_stats;
+
+		for (i = 0; i < num_vdev_stats; i++) {
+			vdev_stats = (struct wmi_vdev_stats *)tmp;
+			tmp += sizeof(struct wmi_vdev_stats);
+		}
+	}
+
+	if (num_peer_stats) {
+		struct wmi_peer_stats *peer_stats;
+		struct ath10k_peer_stat *s;
+
+		stats->peers = num_peer_stats;
+
+		for (i = 0; i < num_peer_stats; i++) {
+			peer_stats = (struct wmi_peer_stats *)tmp;
+			s = &stats->peer_stat[i];
+
+			WMI_MAC_ADDR_TO_CHAR_ARRAY(&peer_stats->peer_macaddr,
+						   s->peer_macaddr);
+			s->peer_rssi = __le32_to_cpu(peer_stats->peer_rssi);
+			s->peer_tx_rate =
+				__le32_to_cpu(peer_stats->peer_tx_rate);
+
+			tmp += sizeof(struct wmi_peer_stats);
+		}
+	}
+
+	mutex_unlock(&ar->conf_mutex);
+	complete(&ar->debug.event_stats_compl);
+}
+
+static ssize_t ath10k_read_fw_stats(struct file *file, char __user *user_buf,
+				    size_t count, loff_t *ppos)
+{
+	struct ath10k *ar = file->private_data;
+	struct ath10k_target_stats *fw_stats;
+	char *buf;
+	unsigned int len = 0, buf_len = 2500;
+	ssize_t ret_cnt;
+	long left;
+	int i;
+	int ret;
+
+	fw_stats = &ar->debug.target_stats;
+
+	buf = kzalloc(buf_len, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	ret = ath10k_wmi_request_stats(ar, WMI_REQUEST_PEER_STAT);
+	if (ret) {
+		ath10k_warn("could not request stats (%d)\n", ret);
+		kfree(buf);
+		return -EIO;
+	}
+
+	left = wait_for_completion_timeout(&ar->debug.event_stats_compl, 1*HZ);
+
+	if (left <= 0) {
+		kfree(buf);
+		return -ETIMEDOUT;
+	}
+
+	mutex_lock(&ar->conf_mutex);
+
+	len += scnprintf(buf + len, buf_len - len, "\n");
+	len += scnprintf(buf + len, buf_len - len, "%30s\n",
+			 "ath10k PDEV stats");
+	len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
+				 "=================");
+
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "Channel noise floor", fw_stats->ch_noise_floor);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
+			 "Channel TX power", fw_stats->chan_tx_power);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
+			 "TX frame count", fw_stats->tx_frame_count);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
+			 "RX frame count", fw_stats->rx_frame_count);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
+			 "RX clear count", fw_stats->rx_clear_count);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
+			 "Cycle count", fw_stats->cycle_count);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10u\n",
+			 "PHY error count", fw_stats->phy_err_count);
+
+	len += scnprintf(buf + len, buf_len - len, "\n");
+	len += scnprintf(buf + len, buf_len - len, "%30s\n",
+			 "ath10k PDEV TX stats");
+	len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
+				 "=================");
+
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "HTT cookies queued", fw_stats->comp_queued);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "HTT cookies disp.", fw_stats->comp_delivered);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "MSDU queued", fw_stats->msdu_enqued);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "MPDU queued", fw_stats->mpdu_enqued);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "MSDUs dropped", fw_stats->wmm_drop);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "Local enqued", fw_stats->local_enqued);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "Local freed", fw_stats->local_freed);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "HW queued", fw_stats->hw_queued);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "PPDUs reaped", fw_stats->hw_reaped);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "Num underruns", fw_stats->underrun);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "PPDUs cleaned", fw_stats->tx_abort);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "MPDUs requed", fw_stats->mpdus_requed);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "Excessive retries", fw_stats->tx_ko);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "HW rate", fw_stats->data_rc);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "Sched self tiggers", fw_stats->self_triggers);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "Dropped due to SW retries",
+			 fw_stats->sw_retry_failure);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "Illegal rate phy errors",
+			 fw_stats->illgl_rate_phy_err);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "Pdev continous xretry", fw_stats->pdev_cont_xretry);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "TX timeout", fw_stats->pdev_tx_timeout);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "PDEV resets", fw_stats->pdev_resets);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "PHY underrun", fw_stats->phy_underrun);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "MPDU is more than txop limit", fw_stats->txop_ovf);
+
+	len += scnprintf(buf + len, buf_len - len, "\n");
+	len += scnprintf(buf + len, buf_len - len, "%30s\n",
+			 "ath10k PDEV RX stats");
+	len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
+				 "=================");
+
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "Mid PPDU route change",
+			 fw_stats->mid_ppdu_route_change);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "Tot. number of statuses", fw_stats->status_rcvd);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "Extra frags on rings 0", fw_stats->r0_frags);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "Extra frags on rings 1", fw_stats->r1_frags);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "Extra frags on rings 2", fw_stats->r2_frags);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "Extra frags on rings 3", fw_stats->r3_frags);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "MSDUs delivered to HTT", fw_stats->htt_msdus);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "MPDUs delivered to HTT", fw_stats->htt_mpdus);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "MSDUs delivered to stack", fw_stats->loc_msdus);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "MPDUs delivered to stack", fw_stats->loc_mpdus);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "Oversized AMSUs", fw_stats->oversize_amsdu);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "PHY errors", fw_stats->phy_errs);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "PHY errors drops", fw_stats->phy_err_drop);
+	len += scnprintf(buf + len, buf_len - len, "%30s %10d\n",
+			 "MPDU errors (FCS, MIC, ENC)", fw_stats->mpdu_errs);
+
+	len += scnprintf(buf + len, buf_len - len, "\n");
+	len += scnprintf(buf + len, buf_len - len, "%30s\n",
+			 "ath10k PEER stats");
+	len += scnprintf(buf + len, buf_len - len, "%30s\n\n",
+				 "=================");
+
+	for (i = 0; i < fw_stats->peers; i++) {
+		len += scnprintf(buf + len, buf_len - len, "%30s %pM\n",
+				 "Peer MAC address",
+				 fw_stats->peer_stat[i].peer_macaddr);
+		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
+				 "Peer RSSI", fw_stats->peer_stat[i].peer_rssi);
+		len += scnprintf(buf + len, buf_len - len, "%30s %u\n",
+				 "Peer TX rate",
+				 fw_stats->peer_stat[i].peer_tx_rate);
+		len += scnprintf(buf + len, buf_len - len, "\n");
+	}
+
+	if (len > buf_len)
+		len = buf_len;
+
+	ret_cnt = simple_read_from_buffer(user_buf, count, ppos, buf, len);
+
+	mutex_unlock(&ar->conf_mutex);
+
+	kfree(buf);
+	return ret_cnt;
+}
+
+static const struct file_operations fops_fw_stats = {
+	.read = ath10k_read_fw_stats,
+	.open = simple_open,
+	.owner = THIS_MODULE,
+	.llseek = default_llseek,
+};
+
+int ath10k_debug_create(struct ath10k *ar)
+{
+	ar->debug.debugfs_phy = debugfs_create_dir("ath10k",
+						   ar->hw->wiphy->debugfsdir);
+
+	if (!ar->debug.debugfs_phy)
+		return -ENOMEM;
+
+	init_completion(&ar->debug.event_stats_compl);
+
+	debugfs_create_file("fw_stats", S_IRUSR, ar->debug.debugfs_phy, ar,
+			    &fops_fw_stats);
+
+	debugfs_create_file("wmi_services", S_IRUSR, ar->debug.debugfs_phy, ar,
+			    &fops_wmi_services);
+
+	return 0;
+}
+#endif /* CONFIG_ATH10K_DEBUGFS */
+
+#ifdef CONFIG_ATH10K_DEBUG
+void ath10k_dbg(enum ath10k_debug_mask mask, const char *fmt, ...)
+{
+	struct va_format vaf;
+	va_list args;
+
+	va_start(args, fmt);
+
+	vaf.fmt = fmt;
+	vaf.va = &args;
+
+	if (ath10k_debug_mask & mask)
+		ath10k_printk(KERN_DEBUG, "%pV", &vaf);
+
+	trace_ath10k_log_dbg(mask, &vaf);
+
+	va_end(args);
+}
+EXPORT_SYMBOL(ath10k_dbg);
+
+void ath10k_dbg_dump(enum ath10k_debug_mask mask,
+		     const char *msg, const char *prefix,
+		     const void *buf, size_t len)
+{
+	if (ath10k_debug_mask & mask) {
+		if (msg)
+			ath10k_dbg(mask, "%s\n", msg);
+
+		print_hex_dump_bytes(prefix, DUMP_PREFIX_OFFSET, buf, len);
+	}
+
+	/* tracing code doesn't like null strings :/ */
+	trace_ath10k_log_dbg_dump(msg ? msg : "", prefix ? prefix : "",
+				  buf, len);
+}
+EXPORT_SYMBOL(ath10k_dbg_dump);
+
+#endif /* CONFIG_ATH10K_DEBUG */

drivers/net/wireless/ath/ath10k/debug.h

@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _DEBUG_H_
+#define _DEBUG_H_
+
+#include <linux/types.h>
+#include "trace.h"
+
+enum ath10k_debug_mask {
+	ATH10K_DBG_PCI		= 0x00000001,
+	ATH10K_DBG_WMI		= 0x00000002,
+	ATH10K_DBG_HTC		= 0x00000004,
+	ATH10K_DBG_HTT		= 0x00000008,
+	ATH10K_DBG_MAC		= 0x00000010,
+	ATH10K_DBG_CORE		= 0x00000020,
+	ATH10K_DBG_PCI_DUMP	= 0x00000040,
+	ATH10K_DBG_HTT_DUMP	= 0x00000080,
+	ATH10K_DBG_MGMT		= 0x00000100,
+	ATH10K_DBG_DATA		= 0x00000200,
+	ATH10K_DBG_ANY		= 0xffffffff,
+};
+
+extern unsigned int ath10k_debug_mask;
+
+extern __printf(1, 2) int ath10k_info(const char *fmt, ...);
+extern __printf(1, 2) int ath10k_err(const char *fmt, ...);
+extern __printf(1, 2) int ath10k_warn(const char *fmt, ...);
+
+#ifdef CONFIG_ATH10K_DEBUGFS
+int ath10k_debug_create(struct ath10k *ar);
+void ath10k_debug_read_service_map(struct ath10k *ar,
+				   void *service_map,
+				   size_t map_size);
+void ath10k_debug_read_target_stats(struct ath10k *ar,
+				    struct wmi_stats_event *ev);
+
+#else
+static inline int ath10k_debug_create(struct ath10k *ar)
+{
+	return 0;
+}
+
+static inline void ath10k_debug_read_service_map(struct ath10k *ar,
+						 void *service_map,
+						 size_t map_size)
+{
+}
+
+static inline void ath10k_debug_read_target_stats(struct ath10k *ar,
+						  struct wmi_stats_event *ev)
+{
+}
+#endif /* CONFIG_ATH10K_DEBUGFS */
+
+#ifdef CONFIG_ATH10K_DEBUG
+extern __printf(2, 3) void ath10k_dbg(enum ath10k_debug_mask mask,
+				      const char *fmt, ...);
+void ath10k_dbg_dump(enum ath10k_debug_mask mask,
+		     const char *msg, const char *prefix,
+		     const void *buf, size_t len);
+#else /* CONFIG_ATH10K_DEBUG */
+
+static inline int ath10k_dbg(enum ath10k_debug_mask dbg_mask,
+			     const char *fmt, ...)
+{
+	return 0;
+}
+
+static inline void ath10k_dbg_dump(enum ath10k_debug_mask mask,
+				   const char *msg, const char *prefix,
+				   const void *buf, size_t len)
+{
+}
+#endif /* CONFIG_ATH10K_DEBUG */
+#endif /* _DEBUG_H_ */

drivers/net/wireless/ath/ath10k/hif.h

@@ -0,0 +1,137 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _HIF_H_
+#define _HIF_H_
+
+#include <linux/kernel.h>
+#include "core.h"
+
+struct ath10k_hif_cb {
+	int (*tx_completion)(struct ath10k *ar,
+			     struct sk_buff *wbuf,
+			     unsigned transfer_id);
+	int (*rx_completion)(struct ath10k *ar,
+			     struct sk_buff *wbuf,
+			     u8 pipe_id);
+};
+
+struct ath10k_hif_ops {
+	/* Send the head of a buffer to HIF for transmission to the target. */
+	int (*send_head)(struct ath10k *ar, u8 pipe_id,
+			 unsigned int transfer_id,
+			 unsigned int nbytes,
+			 struct sk_buff *buf);
+
+	/*
+	 * API to handle HIF-specific BMI message exchanges, this API is
+	 * synchronous and only allowed to be called from a context that
+	 * can block (sleep)
+	 */
+	int (*exchange_bmi_msg)(struct ath10k *ar,
+				void *request, u32 request_len,
+				void *response, u32 *response_len);
+
+	int (*start)(struct ath10k *ar);
+
+	void (*stop)(struct ath10k *ar);
+
+	int (*map_service_to_pipe)(struct ath10k *ar, u16 service_id,
+				   u8 *ul_pipe, u8 *dl_pipe,
+				   int *ul_is_polled, int *dl_is_polled);
+
+	void (*get_default_pipe)(struct ath10k *ar, u8 *ul_pipe, u8 *dl_pipe);
+
+	/*
+	 * Check if prior sends have completed.
+	 *
+	 * Check whether the pipe in question has any completed
+	 * sends that have not yet been processed.
+	 * This function is only relevant for HIF pipes that are configured
+	 * to be polled rather than interrupt-driven.
+	 */
+	void (*send_complete_check)(struct ath10k *ar, u8 pipe_id, int force);
+
+	void (*init)(struct ath10k *ar,
+		     struct ath10k_hif_cb *callbacks);
+
+	u16 (*get_free_queue_number)(struct ath10k *ar, u8 pipe_id);
+};
+
+
+static inline int ath10k_hif_send_head(struct ath10k *ar, u8 pipe_id,
+				       unsigned int transfer_id,
+				       unsigned int nbytes,
+				       struct sk_buff *buf)
+{
+	return ar->hif.ops->send_head(ar, pipe_id, transfer_id, nbytes, buf);
+}
+
+static inline int ath10k_hif_exchange_bmi_msg(struct ath10k *ar,
+					      void *request, u32 request_len,
+					      void *response, u32 *response_len)
+{
+	return ar->hif.ops->exchange_bmi_msg(ar, request, request_len,
+					     response, response_len);
+}
+
+static inline int ath10k_hif_start(struct ath10k *ar)
+{
+	return ar->hif.ops->start(ar);
+}
+
+static inline void ath10k_hif_stop(struct ath10k *ar)
+{
+	return ar->hif.ops->stop(ar);
+}
+
+static inline int ath10k_hif_map_service_to_pipe(struct ath10k *ar,
+						 u16 service_id,
+						 u8 *ul_pipe, u8 *dl_pipe,
+						 int *ul_is_polled,
+						 int *dl_is_polled)
+{
+	return ar->hif.ops->map_service_to_pipe(ar, service_id,
+						ul_pipe, dl_pipe,
+						ul_is_polled, dl_is_polled);
+}
+
+static inline void ath10k_hif_get_default_pipe(struct ath10k *ar,
+					       u8 *ul_pipe, u8 *dl_pipe)
+{
+	ar->hif.ops->get_default_pipe(ar, ul_pipe, dl_pipe);
+}
+
+static inline void ath10k_hif_send_complete_check(struct ath10k *ar,
+						  u8 pipe_id, int force)
+{
+	ar->hif.ops->send_complete_check(ar, pipe_id, force);
+}
+
+static inline void ath10k_hif_init(struct ath10k *ar,
+				   struct ath10k_hif_cb *callbacks)
+{
+	ar->hif.ops->init(ar, callbacks);
+}
+
+static inline u16 ath10k_hif_get_free_queue_number(struct ath10k *ar,
+						   u8 pipe_id)
+{
+	return ar->hif.ops->get_free_queue_number(ar, pipe_id);
+}
+
+#endif /* _HIF_H_ */

drivers/net/wireless/ath/ath10k/htc.c

@@ -0,0 +1,1000 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "core.h"
+#include "hif.h"
+#include "debug.h"
+
+/********/
+/* Send */
+/********/
+
+static inline void ath10k_htc_send_complete_check(struct ath10k_htc_ep *ep,
+						  int force)
+{
+	/*
+	 * Check whether HIF has any prior sends that have finished,
+	 * have not had the post-processing done.
+	 */
+	ath10k_hif_send_complete_check(ep->htc->ar, ep->ul_pipe_id, force);
+}
+
+static void ath10k_htc_control_tx_complete(struct ath10k *ar,
+					   struct sk_buff *skb)
+{
+	kfree_skb(skb);
+}
+
+static struct sk_buff *ath10k_htc_build_tx_ctrl_skb(void *ar)
+{
+	struct sk_buff *skb;
+	struct ath10k_skb_cb *skb_cb;
+
+	skb = dev_alloc_skb(ATH10K_HTC_CONTROL_BUFFER_SIZE);
+	if (!skb) {
+		ath10k_warn("Unable to allocate ctrl skb\n");
+		return NULL;
+	}
+
+	skb_reserve(skb, 20); /* FIXME: why 20 bytes? */
+	WARN_ONCE((unsigned long)skb->data & 3, "unaligned skb");
+
+	skb_cb = ATH10K_SKB_CB(skb);
+	memset(skb_cb, 0, sizeof(*skb_cb));
+
+	ath10k_dbg(ATH10K_DBG_HTC, "%s: skb %p\n", __func__, skb);
+	return skb;
+}
+
+static inline void ath10k_htc_restore_tx_skb(struct ath10k_htc *htc,
+					     struct sk_buff *skb)
+{
+	ath10k_skb_unmap(htc->ar->dev, skb);
+	skb_pull(skb, sizeof(struct ath10k_htc_hdr));
+}
+
+static void ath10k_htc_notify_tx_completion(struct ath10k_htc_ep *ep,
+					    struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_HTC, "%s: ep %d skb %p\n", __func__,
+		   ep->eid, skb);
+
+	ath10k_htc_restore_tx_skb(ep->htc, skb);
+
+	if (!ep->ep_ops.ep_tx_complete) {
+		ath10k_warn("no tx handler for eid %d\n", ep->eid);
+		dev_kfree_skb_any(skb);
+		return;
+	}
+
+	ep->ep_ops.ep_tx_complete(ep->htc->ar, skb);
+}
+
+/* assumes tx_lock is held */
+static bool ath10k_htc_ep_need_credit_update(struct ath10k_htc_ep *ep)
+{
+	if (!ep->tx_credit_flow_enabled)
+		return false;
+	if (ep->tx_credits >= ep->tx_credits_per_max_message)
+		return false;
+
+	ath10k_dbg(ATH10K_DBG_HTC, "HTC: endpoint %d needs credit update\n",
+		   ep->eid);
+	return true;
+}
+
+static void ath10k_htc_prepare_tx_skb(struct ath10k_htc_ep *ep,
+				      struct sk_buff *skb)
+{
+	struct ath10k_htc_hdr *hdr;
+
+	hdr = (struct ath10k_htc_hdr *)skb->data;
+	memset(hdr, 0, sizeof(*hdr));
+
+	hdr->eid = ep->eid;
+	hdr->len = __cpu_to_le16(skb->len - sizeof(*hdr));
+
+	spin_lock_bh(&ep->htc->tx_lock);
+	hdr->seq_no = ep->seq_no++;
+
+	if (ath10k_htc_ep_need_credit_update(ep))
+		hdr->flags |= ATH10K_HTC_FLAG_NEED_CREDIT_UPDATE;
+
+	spin_unlock_bh(&ep->htc->tx_lock);
+}
+
+static int ath10k_htc_issue_skb(struct ath10k_htc *htc,
+				struct ath10k_htc_ep *ep,
+				struct sk_buff *skb,
+				u8 credits)
+{
+	struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(skb);
+	int ret;
+
+	ath10k_dbg(ATH10K_DBG_HTC, "%s: ep %d skb %p\n", __func__,
+		   ep->eid, skb);
+
+	ath10k_htc_prepare_tx_skb(ep, skb);
+
+	ret = ath10k_skb_map(htc->ar->dev, skb);
+	if (ret)
+		goto err;
+
+	ret = ath10k_hif_send_head(htc->ar,
+				   ep->ul_pipe_id,
+				   ep->eid,
+				   skb->len,
+				   skb);
+	if (unlikely(ret))
+		goto err;
+
+	return 0;
+err:
+	ath10k_warn("HTC issue failed: %d\n", ret);
+
+	spin_lock_bh(&htc->tx_lock);
+	ep->tx_credits += credits;
+	spin_unlock_bh(&htc->tx_lock);
+
+	/* this is the simplest way to handle out-of-resources for non-credit
+	 * based endpoints. credit based endpoints can still get -ENOSR, but
+	 * this is highly unlikely as credit reservation should prevent that */
+	if (ret == -ENOSR) {
+		spin_lock_bh(&htc->tx_lock);
+		__skb_queue_head(&ep->tx_queue, skb);
+		spin_unlock_bh(&htc->tx_lock);
+
+		return ret;
+	}
+
+	skb_cb->is_aborted = true;
+	ath10k_htc_notify_tx_completion(ep, skb);
+
+	return ret;
+}
+
+static struct sk_buff *ath10k_htc_get_skb_credit_based(struct ath10k_htc *htc,
+						       struct ath10k_htc_ep *ep,
+						       u8 *credits)
+{
+	struct sk_buff *skb;
+	struct ath10k_skb_cb *skb_cb;
+	int credits_required;
+	int remainder;
+	unsigned int transfer_len;
+
+	lockdep_assert_held(&htc->tx_lock);
+
+	skb = __skb_dequeue(&ep->tx_queue);
+	if (!skb)
+		return NULL;
+
+	skb_cb = ATH10K_SKB_CB(skb);
+	transfer_len = skb->len;
+
+	if (likely(transfer_len <= htc->target_credit_size)) {
+		credits_required = 1;
+	} else {
+		/* figure out how many credits this message requires */
+		credits_required = transfer_len / htc->target_credit_size;
+		remainder = transfer_len % htc->target_credit_size;
+
+		if (remainder)
+			credits_required++;
+	}
+
+	ath10k_dbg(ATH10K_DBG_HTC, "Credits required %d got %d\n",
+		   credits_required, ep->tx_credits);
+
+	if (ep->tx_credits < credits_required) {
+		__skb_queue_head(&ep->tx_queue, skb);
+		return NULL;
+	}
+
+	ep->tx_credits -= credits_required;
+	*credits = credits_required;
+	return skb;
+}
+
+static void ath10k_htc_send_work(struct work_struct *work)
+{
+	struct ath10k_htc_ep *ep = container_of(work,
+					struct ath10k_htc_ep, send_work);
+	struct ath10k_htc *htc = ep->htc;
+	struct sk_buff *skb;
+	u8 credits = 0;
+	int ret;
+
+	while (true) {
+		if (ep->ul_is_polled)
+			ath10k_htc_send_complete_check(ep, 0);
+
+		spin_lock_bh(&htc->tx_lock);
+		if (ep->tx_credit_flow_enabled)
+			skb = ath10k_htc_get_skb_credit_based(htc, ep,
+							      &credits);
+		else
+			skb = __skb_dequeue(&ep->tx_queue);
+		spin_unlock_bh(&htc->tx_lock);
+
+		if (!skb)
+			break;
+
+		ret = ath10k_htc_issue_skb(htc, ep, skb, credits);
+		if (ret == -ENOSR)
+			break;
+	}
+}
+
+int ath10k_htc_send(struct ath10k_htc *htc,
+		    enum ath10k_htc_ep_id eid,
+		    struct sk_buff *skb)
+{
+	struct ath10k_htc_ep *ep = &htc->endpoint[eid];
+
+	if (eid >= ATH10K_HTC_EP_COUNT) {
+		ath10k_warn("Invalid endpoint id: %d\n", eid);
+		return -ENOENT;
+	}
+
+	skb_push(skb, sizeof(struct ath10k_htc_hdr));
+
+	spin_lock_bh(&htc->tx_lock);
+	__skb_queue_tail(&ep->tx_queue, skb);
+	spin_unlock_bh(&htc->tx_lock);
+
+	queue_work(htc->ar->workqueue, &ep->send_work);
+	return 0;
+}
+
+static int ath10k_htc_tx_completion_handler(struct ath10k *ar,
+					    struct sk_buff *skb,
+					    unsigned int eid)
+{
+	struct ath10k_htc *htc = ar->htc;
+	struct ath10k_htc_ep *ep = &htc->endpoint[eid];
+	bool stopping;
+
+	ath10k_htc_notify_tx_completion(ep, skb);
+	/* the skb now belongs to the completion handler */
+
+	spin_lock_bh(&htc->tx_lock);
+	stopping = htc->stopping;
+	spin_unlock_bh(&htc->tx_lock);
+
+	if (!ep->tx_credit_flow_enabled && !stopping)
+		/*
+		 * note: when using TX credit flow, the re-checking of
+		 * queues happens when credits flow back from the target.
+		 * in the non-TX credit case, we recheck after the packet
+		 * completes
+		 */
+		queue_work(ar->workqueue, &ep->send_work);
+
+	return 0;
+}
+
+/* flush endpoint TX queue */
+static void ath10k_htc_flush_endpoint_tx(struct ath10k_htc *htc,
+					 struct ath10k_htc_ep *ep)
+{
+	struct sk_buff *skb;
+	struct ath10k_skb_cb *skb_cb;
+
+	spin_lock_bh(&htc->tx_lock);
+	for (;;) {
+		skb = __skb_dequeue(&ep->tx_queue);
+		if (!skb)
+			break;
+
+		skb_cb = ATH10K_SKB_CB(skb);
+		skb_cb->is_aborted = true;
+		ath10k_htc_notify_tx_completion(ep, skb);
+	}
+	spin_unlock_bh(&htc->tx_lock);
+
+	cancel_work_sync(&ep->send_work);
+}
+
+/***********/
+/* Receive */
+/***********/
+
+static void
+ath10k_htc_process_credit_report(struct ath10k_htc *htc,
+				 const struct ath10k_htc_credit_report *report,
+				 int len,
+				 enum ath10k_htc_ep_id eid)
+{
+	struct ath10k_htc_ep *ep;
+	int i, n_reports;
+
+	if (len % sizeof(*report))
+		ath10k_warn("Uneven credit report len %d", len);
+
+	n_reports = len / sizeof(*report);
+
+	spin_lock_bh(&htc->tx_lock);
+	for (i = 0; i < n_reports; i++, report++) {
+		if (report->eid >= ATH10K_HTC_EP_COUNT)
+			break;
+
+		ath10k_dbg(ATH10K_DBG_HTC, "ep %d got %d credits\n",
+			   report->eid, report->credits);
+
+		ep = &htc->endpoint[report->eid];
+		ep->tx_credits += report->credits;
+
+		if (ep->tx_credits && !skb_queue_empty(&ep->tx_queue))
+			queue_work(htc->ar->workqueue, &ep->send_work);
+	}
+	spin_unlock_bh(&htc->tx_lock);
+}
+
+static int ath10k_htc_process_trailer(struct ath10k_htc *htc,
+				      u8 *buffer,
+				      int length,
+				      enum ath10k_htc_ep_id src_eid)
+{
+	int status = 0;
+	struct ath10k_htc_record *record;
+	u8 *orig_buffer;
+	int orig_length;
+	size_t len;
+
+	orig_buffer = buffer;
+	orig_length = length;
+
+	while (length > 0) {
+		record = (struct ath10k_htc_record *)buffer;
+
+		if (length < sizeof(record->hdr)) {
+			status = -EINVAL;
+			break;
+		}
+
+		if (record->hdr.len > length) {
+			/* no room left in buffer for record */
+			ath10k_warn("Invalid record length: %d\n",
+				    record->hdr.len);
+			status = -EINVAL;
+			break;
+		}
+
+		switch (record->hdr.id) {
+		case ATH10K_HTC_RECORD_CREDITS:
+			len = sizeof(struct ath10k_htc_credit_report);
+			if (record->hdr.len < len) {
+				ath10k_warn("Credit report too long\n");
+				status = -EINVAL;
+				break;
+			}
+			ath10k_htc_process_credit_report(htc,
+							 record->credit_report,
+							 record->hdr.len,
+							 src_eid);
+			break;
+		default:
+			ath10k_warn("Unhandled record: id:%d length:%d\n",
+				    record->hdr.id, record->hdr.len);
+			break;
+		}
+
+		if (status)
+			break;
+
+		/* multiple records may be present in a trailer */
+		buffer += sizeof(record->hdr) + record->hdr.len;
+		length -= sizeof(record->hdr) + record->hdr.len;
+	}
+
+	if (status)
+		ath10k_dbg_dump(ATH10K_DBG_HTC, "htc rx bad trailer", "",
+				orig_buffer, orig_length);
+
+	return status;
+}
+
+static int ath10k_htc_rx_completion_handler(struct ath10k *ar,
+					    struct sk_buff *skb,
+					    u8 pipe_id)
+{
+	int status = 0;
+	struct ath10k_htc *htc = ar->htc;
+	struct ath10k_htc_hdr *hdr;
+	struct ath10k_htc_ep *ep;
+	u16 payload_len;
+	u32 trailer_len = 0;
+	size_t min_len;
+	u8 eid;
+	bool trailer_present;
+
+	hdr = (struct ath10k_htc_hdr *)skb->data;
+	skb_pull(skb, sizeof(*hdr));
+
+	eid = hdr->eid;
+
+	if (eid >= ATH10K_HTC_EP_COUNT) {
+		ath10k_warn("HTC Rx: invalid eid %d\n", eid);
+		ath10k_dbg_dump(ATH10K_DBG_HTC, "htc bad header", "",
+				hdr, sizeof(*hdr));
+		status = -EINVAL;
+		goto out;
+	}
+
+	ep = &htc->endpoint[eid];
+
+	/*
+	 * If this endpoint that received a message from the target has
+	 * a to-target HIF pipe whose send completions are polled rather
+	 * than interrupt-driven, this is a good point to ask HIF to check
+	 * whether it has any completed sends to handle.
+	 */
+	if (ep->ul_is_polled)
+		ath10k_htc_send_complete_check(ep, 1);
+
+	payload_len = __le16_to_cpu(hdr->len);
+
+	if (payload_len + sizeof(*hdr) > ATH10K_HTC_MAX_LEN) {
+		ath10k_warn("HTC rx frame too long, len: %zu\n",
+			    payload_len + sizeof(*hdr));
+		ath10k_dbg_dump(ATH10K_DBG_HTC, "htc bad rx pkt len", "",
+				hdr, sizeof(*hdr));
+		status = -EINVAL;
+		goto out;
+	}
+
+	if (skb->len < payload_len) {
+		ath10k_dbg(ATH10K_DBG_HTC,
+			   "HTC Rx: insufficient length, got %d, expected %d\n",
+			   skb->len, payload_len);
+		ath10k_dbg_dump(ATH10K_DBG_HTC, "htc bad rx pkt len",
+				"", hdr, sizeof(*hdr));
+		status = -EINVAL;
+		goto out;
+	}
+
+	/* get flags to check for trailer */
+	trailer_present = hdr->flags & ATH10K_HTC_FLAG_TRAILER_PRESENT;
+	if (trailer_present) {
+		u8 *trailer;
+
+		trailer_len = hdr->trailer_len;
+		min_len = sizeof(struct ath10k_ath10k_htc_record_hdr);
+
+		if ((trailer_len < min_len) ||
+		    (trailer_len > payload_len)) {
+			ath10k_warn("Invalid trailer length: %d\n",
+				    trailer_len);
+			status = -EPROTO;
+			goto out;
+		}
+
+		trailer = (u8 *)hdr;
+		trailer += sizeof(*hdr);
+		trailer += payload_len;
+		trailer -= trailer_len;
+		status = ath10k_htc_process_trailer(htc, trailer,
+						    trailer_len, hdr->eid);
+		if (status)
+			goto out;
+
+		skb_trim(skb, skb->len - trailer_len);
+	}
+
+	if (((int)payload_len - (int)trailer_len) <= 0)
+		/* zero length packet with trailer data, just drop these */
+		goto out;
+
+	if (eid == ATH10K_HTC_EP_0) {
+		struct ath10k_htc_msg *msg = (struct ath10k_htc_msg *)skb->data;
+
+		switch (__le16_to_cpu(msg->hdr.message_id)) {
+		default:
+			/* handle HTC control message */
+			if (completion_done(&htc->ctl_resp)) {
+				/*
+				 * this is a fatal error, target should not be
+				 * sending unsolicited messages on the ep 0
+				 */
+				ath10k_warn("HTC rx ctrl still processing\n");
+				status = -EINVAL;
+				complete(&htc->ctl_resp);
+				goto out;
+			}
+
+			htc->control_resp_len =
+				min_t(int, skb->len,
+				      ATH10K_HTC_MAX_CTRL_MSG_LEN);
+
+			memcpy(htc->control_resp_buffer, skb->data,
+			       htc->control_resp_len);
+
+			complete(&htc->ctl_resp);
+			break;
+		case ATH10K_HTC_MSG_SEND_SUSPEND_COMPLETE:
+			htc->htc_ops.target_send_suspend_complete(ar);
+		}
+		goto out;
+	}
+
+	ath10k_dbg(ATH10K_DBG_HTC, "htc rx completion ep %d skb %p\n",
+		   eid, skb);
+	ep->ep_ops.ep_rx_complete(ar, skb);
+
+	/* skb is now owned by the rx completion handler */
+	skb = NULL;
+out:
+	kfree_skb(skb);
+
+	return status;
+}
+
+static void ath10k_htc_control_rx_complete(struct ath10k *ar,
+					   struct sk_buff *skb)
+{
+	/* This is unexpected. FW is not supposed to send regular rx on this
+	 * endpoint. */
+	ath10k_warn("unexpected htc rx\n");
+	kfree_skb(skb);
+}
+
+/***************/
+/* Init/Deinit */
+/***************/
+
+static const char *htc_service_name(enum ath10k_htc_svc_id id)
+{
+	switch (id) {
+	case ATH10K_HTC_SVC_ID_RESERVED:
+		return "Reserved";
+	case ATH10K_HTC_SVC_ID_RSVD_CTRL:
+		return "Control";
+	case ATH10K_HTC_SVC_ID_WMI_CONTROL:
+		return "WMI";
+	case ATH10K_HTC_SVC_ID_WMI_DATA_BE:
+		return "DATA BE";
+	case ATH10K_HTC_SVC_ID_WMI_DATA_BK:
+		return "DATA BK";
+	case ATH10K_HTC_SVC_ID_WMI_DATA_VI:
+		return "DATA VI";
+	case ATH10K_HTC_SVC_ID_WMI_DATA_VO:
+		return "DATA VO";
+	case ATH10K_HTC_SVC_ID_NMI_CONTROL:
+		return "NMI Control";
+	case ATH10K_HTC_SVC_ID_NMI_DATA:
+		return "NMI Data";
+	case ATH10K_HTC_SVC_ID_HTT_DATA_MSG:
+		return "HTT Data";
+	case ATH10K_HTC_SVC_ID_TEST_RAW_STREAMS:
+		return "RAW";
+	}
+
+	return "Unknown";
+}
+
+static void ath10k_htc_reset_endpoint_states(struct ath10k_htc *htc)
+{
+	struct ath10k_htc_ep *ep;
+	int i;
+
+	for (i = ATH10K_HTC_EP_0; i < ATH10K_HTC_EP_COUNT; i++) {
+		ep = &htc->endpoint[i];
+		ep->service_id = ATH10K_HTC_SVC_ID_UNUSED;
+		ep->max_ep_message_len = 0;
+		ep->max_tx_queue_depth = 0;
+		ep->eid = i;
+		skb_queue_head_init(&ep->tx_queue);
+		ep->htc = htc;
+		ep->tx_credit_flow_enabled = true;
+		INIT_WORK(&ep->send_work, ath10k_htc_send_work);
+	}
+}
+
+static void ath10k_htc_setup_target_buffer_assignments(struct ath10k_htc *htc)
+{
+	struct ath10k_htc_svc_tx_credits *entry;
+
+	entry = &htc->service_tx_alloc[0];
+
+	/*
+	 * for PCIE allocate all credists/HTC buffers to WMI.
+	 * no buffers are used/required for data. data always
+	 * remains on host.
+	 */
+	entry++;
+	entry->service_id = ATH10K_HTC_SVC_ID_WMI_CONTROL;
+	entry->credit_allocation = htc->total_transmit_credits;
+}
+
+static u8 ath10k_htc_get_credit_allocation(struct ath10k_htc *htc,
+					   u16 service_id)
+{
+	u8 allocation = 0;
+	int i;
+
+	for (i = 0; i < ATH10K_HTC_EP_COUNT; i++) {
+		if (htc->service_tx_alloc[i].service_id == service_id)
+			allocation =
+			    htc->service_tx_alloc[i].credit_allocation;
+	}
+
+	return allocation;
+}
+
+int ath10k_htc_wait_target(struct ath10k_htc *htc)
+{
+	int status = 0;
+	struct ath10k_htc_svc_conn_req conn_req;
+	struct ath10k_htc_svc_conn_resp conn_resp;
+	struct ath10k_htc_msg *msg;
+	u16 message_id;
+	u16 credit_count;
+	u16 credit_size;
+
+	INIT_COMPLETION(htc->ctl_resp);
+
+	status = ath10k_hif_start(htc->ar);
+	if (status) {
+		ath10k_err("could not start HIF (%d)\n", status);
+		goto err_start;
+	}
+
+	status = wait_for_completion_timeout(&htc->ctl_resp,
+					     ATH10K_HTC_WAIT_TIMEOUT_HZ);
+	if (status <= 0) {
+		if (status == 0)
+			status = -ETIMEDOUT;
+
+		ath10k_err("ctl_resp never came in (%d)\n", status);
+		goto err_target;
+	}
+
+	if (htc->control_resp_len < sizeof(msg->hdr) + sizeof(msg->ready)) {
+		ath10k_err("Invalid HTC ready msg len:%d\n",
+			   htc->control_resp_len);
+
+		status = -ECOMM;
+		goto err_target;
+	}
+
+	msg = (struct ath10k_htc_msg *)htc->control_resp_buffer;
+	message_id   = __le16_to_cpu(msg->hdr.message_id);
+	credit_count = __le16_to_cpu(msg->ready.credit_count);
+	credit_size  = __le16_to_cpu(msg->ready.credit_size);
+
+	if (message_id != ATH10K_HTC_MSG_READY_ID) {
+		ath10k_err("Invalid HTC ready msg: 0x%x\n", message_id);
+		status = -ECOMM;
+		goto err_target;
+	}
+
+	htc->total_transmit_credits = credit_count;
+	htc->target_credit_size = credit_size;
+
+	ath10k_dbg(ATH10K_DBG_HTC,
+		   "Target ready! transmit resources: %d size:%d\n",
+		   htc->total_transmit_credits,
+		   htc->target_credit_size);
+
+	if ((htc->total_transmit_credits == 0) ||
+	    (htc->target_credit_size == 0)) {
+		status = -ECOMM;
+		ath10k_err("Invalid credit size received\n");
+		goto err_target;
+	}
+
+	ath10k_htc_setup_target_buffer_assignments(htc);
+
+	/* setup our pseudo HTC control endpoint connection */
+	memset(&conn_req, 0, sizeof(conn_req));
+	memset(&conn_resp, 0, sizeof(conn_resp));
+	conn_req.ep_ops.ep_tx_complete = ath10k_htc_control_tx_complete;
+	conn_req.ep_ops.ep_rx_complete = ath10k_htc_control_rx_complete;
+	conn_req.max_send_queue_depth = ATH10K_NUM_CONTROL_TX_BUFFERS;
+	conn_req.service_id = ATH10K_HTC_SVC_ID_RSVD_CTRL;
+
+	/* connect fake service */
+	status = ath10k_htc_connect_service(htc, &conn_req, &conn_resp);
+	if (status) {
+		ath10k_err("could not connect to htc service (%d)\n", status);
+		goto err_target;
+	}
+
+	return 0;
+err_target:
+	ath10k_hif_stop(htc->ar);
+err_start:
+	return status;
+}
+
+int ath10k_htc_connect_service(struct ath10k_htc *htc,
+			       struct ath10k_htc_svc_conn_req *conn_req,
+			       struct ath10k_htc_svc_conn_resp *conn_resp)
+{
+	struct ath10k_htc_msg *msg;
+	struct ath10k_htc_conn_svc *req_msg;
+	struct ath10k_htc_conn_svc_response resp_msg_dummy;
+	struct ath10k_htc_conn_svc_response *resp_msg = &resp_msg_dummy;
+	enum ath10k_htc_ep_id assigned_eid = ATH10K_HTC_EP_COUNT;
+	struct ath10k_htc_ep *ep;
+	struct sk_buff *skb;
+	unsigned int max_msg_size = 0;
+	int length, status;
+	bool disable_credit_flow_ctrl = false;
+	u16 message_id, service_id, flags = 0;
+	u8 tx_alloc = 0;
+
+	/* special case for HTC pseudo control service */
+	if (conn_req->service_id == ATH10K_HTC_SVC_ID_RSVD_CTRL) {
+		disable_credit_flow_ctrl = true;
+		assigned_eid = ATH10K_HTC_EP_0;
+		max_msg_size = ATH10K_HTC_MAX_CTRL_MSG_LEN;
+		memset(&resp_msg_dummy, 0, sizeof(resp_msg_dummy));
+		goto setup;
+	}
+
+	tx_alloc = ath10k_htc_get_credit_allocation(htc,
+						    conn_req->service_id);
+	if (!tx_alloc)
+		ath10k_warn("HTC Service %s does not allocate target credits\n",
+			    htc_service_name(conn_req->service_id));
+
+	skb = ath10k_htc_build_tx_ctrl_skb(htc->ar);
+	if (!skb) {
+		ath10k_err("Failed to allocate HTC packet\n");
+		return -ENOMEM;
+	}
+
+	length = sizeof(msg->hdr) + sizeof(msg->connect_service);
+	skb_put(skb, length);
+	memset(skb->data, 0, length);
+
+	msg = (struct ath10k_htc_msg *)skb->data;
+	msg->hdr.message_id =
+		__cpu_to_le16(ATH10K_HTC_MSG_CONNECT_SERVICE_ID);
+
+	flags |= SM(tx_alloc, ATH10K_HTC_CONN_FLAGS_RECV_ALLOC);
+
+	req_msg = &msg->connect_service;
+	req_msg->flags = __cpu_to_le16(flags);
+	req_msg->service_id = __cpu_to_le16(conn_req->service_id);
+
+	/* Only enable credit flow control for WMI ctrl service */
+	if (conn_req->service_id != ATH10K_HTC_SVC_ID_WMI_CONTROL) {
+		flags |= ATH10K_HTC_CONN_FLAGS_DISABLE_CREDIT_FLOW_CTRL;
+		disable_credit_flow_ctrl = true;
+	}
+
+	INIT_COMPLETION(htc->ctl_resp);
+
+	status = ath10k_htc_send(htc, ATH10K_HTC_EP_0, skb);
+	if (status) {
+		kfree_skb(skb);
+		return status;
+	}
+
+	/* wait for response */
+	status = wait_for_completion_timeout(&htc->ctl_resp,
+					     ATH10K_HTC_CONN_SVC_TIMEOUT_HZ);
+	if (status <= 0) {
+		if (status == 0)
+			status = -ETIMEDOUT;
+		ath10k_err("Service connect timeout: %d\n", status);
+		return status;
+	}
+
+	/* we controlled the buffer creation, it's aligned */
+	msg = (struct ath10k_htc_msg *)htc->control_resp_buffer;
+	resp_msg = &msg->connect_service_response;
+	message_id = __le16_to_cpu(msg->hdr.message_id);
+	service_id = __le16_to_cpu(resp_msg->service_id);
+
+	if ((message_id != ATH10K_HTC_MSG_CONNECT_SERVICE_RESP_ID) ||
+	    (htc->control_resp_len < sizeof(msg->hdr) +
+	     sizeof(msg->connect_service_response))) {
+		ath10k_err("Invalid resp message ID 0x%x", message_id);
+		return -EPROTO;
+	}
+
+	ath10k_dbg(ATH10K_DBG_HTC,
+		   "HTC Service %s connect response: status: 0x%x, assigned ep: 0x%x\n",
+		   htc_service_name(service_id),
+		   resp_msg->status, resp_msg->eid);
+
+	conn_resp->connect_resp_code = resp_msg->status;
+
+	/* check response status */
+	if (resp_msg->status != ATH10K_HTC_CONN_SVC_STATUS_SUCCESS) {
+		ath10k_err("HTC Service %s connect request failed: 0x%x)\n",
+			   htc_service_name(service_id),
+			   resp_msg->status);
+		return -EPROTO;
+	}
+
+	assigned_eid = (enum ath10k_htc_ep_id)resp_msg->eid;
+	max_msg_size = __le16_to_cpu(resp_msg->max_msg_size);
+
+setup:
+
+	if (assigned_eid >= ATH10K_HTC_EP_COUNT)
+		return -EPROTO;
+
+	if (max_msg_size == 0)
+		return -EPROTO;
+
+	ep = &htc->endpoint[assigned_eid];
+	ep->eid = assigned_eid;
+
+	if (ep->service_id != ATH10K_HTC_SVC_ID_UNUSED)
+		return -EPROTO;
+
+	/* return assigned endpoint to caller */
+	conn_resp->eid = assigned_eid;
+	conn_resp->max_msg_len = __le16_to_cpu(resp_msg->max_msg_size);
+
+	/* setup the endpoint */
+	ep->service_id = conn_req->service_id;
+	ep->max_tx_queue_depth = conn_req->max_send_queue_depth;
+	ep->max_ep_message_len = __le16_to_cpu(resp_msg->max_msg_size);
+	ep->tx_credits = tx_alloc;
+	ep->tx_credit_size = htc->target_credit_size;
+	ep->tx_credits_per_max_message = ep->max_ep_message_len /
+					 htc->target_credit_size;
+
+	if (ep->max_ep_message_len % htc->target_credit_size)
+		ep->tx_credits_per_max_message++;
+
+	/* copy all the callbacks */
+	ep->ep_ops = conn_req->ep_ops;
+
+	status = ath10k_hif_map_service_to_pipe(htc->ar,
+						ep->service_id,
+						&ep->ul_pipe_id,
+						&ep->dl_pipe_id,
+						&ep->ul_is_polled,
+						&ep->dl_is_polled);
+	if (status)
+		return status;
+
+	ath10k_dbg(ATH10K_DBG_HTC,
+		   "HTC service: %s UL pipe: %d DL pipe: %d eid: %d ready\n",
+		   htc_service_name(ep->service_id), ep->ul_pipe_id,
+		   ep->dl_pipe_id, ep->eid);
+
+	ath10k_dbg(ATH10K_DBG_HTC,
+		   "EP %d UL polled: %d, DL polled: %d\n",
+		   ep->eid, ep->ul_is_polled, ep->dl_is_polled);
+
+	if (disable_credit_flow_ctrl && ep->tx_credit_flow_enabled) {
+		ep->tx_credit_flow_enabled = false;
+		ath10k_dbg(ATH10K_DBG_HTC,
+			   "HTC service: %s eid: %d TX flow control disabled\n",
+			   htc_service_name(ep->service_id), assigned_eid);
+	}
+
+	return status;
+}
+
+struct sk_buff *ath10k_htc_alloc_skb(int size)
+{
+	struct sk_buff *skb;
+
+	skb = dev_alloc_skb(size + sizeof(struct ath10k_htc_hdr));
+	if (!skb) {
+		ath10k_warn("could not allocate HTC tx skb\n");
+		return NULL;
+	}
+
+	skb_reserve(skb, sizeof(struct ath10k_htc_hdr));
+
+	/* FW/HTC requires 4-byte aligned streams */
+	if (!IS_ALIGNED((unsigned long)skb->data, 4))
+		ath10k_warn("Unaligned HTC tx skb\n");
+
+	return skb;
+}
+
+int ath10k_htc_start(struct ath10k_htc *htc)
+{
+	struct sk_buff *skb;
+	int status = 0;
+	struct ath10k_htc_msg *msg;
+
+	skb = ath10k_htc_build_tx_ctrl_skb(htc->ar);
+	if (!skb)
+		return -ENOMEM;
+
+	skb_put(skb, sizeof(msg->hdr) + sizeof(msg->setup_complete_ext));
+	memset(skb->data, 0, skb->len);
+
+	msg = (struct ath10k_htc_msg *)skb->data;
+	msg->hdr.message_id =
+		__cpu_to_le16(ATH10K_HTC_MSG_SETUP_COMPLETE_EX_ID);
+
+	ath10k_dbg(ATH10K_DBG_HTC, "HTC is using TX credit flow control\n");
+
+	status = ath10k_htc_send(htc, ATH10K_HTC_EP_0, skb);
+	if (status) {
+		kfree_skb(skb);
+		return status;
+	}
+
+	return 0;
+}
+
+/*
+ * stop HTC communications, i.e. stop interrupt reception, and flush all
+ * queued buffers
+ */
+void ath10k_htc_stop(struct ath10k_htc *htc)
+{
+	int i;
+	struct ath10k_htc_ep *ep;
+
+	spin_lock_bh(&htc->tx_lock);
+	htc->stopping = true;
+	spin_unlock_bh(&htc->tx_lock);
+
+	for (i = ATH10K_HTC_EP_0; i < ATH10K_HTC_EP_COUNT; i++) {
+		ep = &htc->endpoint[i];
+		ath10k_htc_flush_endpoint_tx(htc, ep);
+	}
+
+	ath10k_hif_stop(htc->ar);
+	ath10k_htc_reset_endpoint_states(htc);
+}
+
+/* registered target arrival callback from the HIF layer */
+struct ath10k_htc *ath10k_htc_create(struct ath10k *ar,
+				     struct ath10k_htc_ops *htc_ops)
+{
+	struct ath10k_hif_cb htc_callbacks;
+	struct ath10k_htc_ep *ep = NULL;
+	struct ath10k_htc *htc = NULL;
+
+	/* FIXME: use struct ath10k instead */
+	htc = kzalloc(sizeof(struct ath10k_htc), GFP_KERNEL);
+	if (!htc)
+		return ERR_PTR(-ENOMEM);
+
+	spin_lock_init(&htc->tx_lock);
+
+	memcpy(&htc->htc_ops, htc_ops, sizeof(struct ath10k_htc_ops));
+
+	ath10k_htc_reset_endpoint_states(htc);
+
+	/* setup HIF layer callbacks */
+	htc_callbacks.rx_completion = ath10k_htc_rx_completion_handler;
+	htc_callbacks.tx_completion = ath10k_htc_tx_completion_handler;
+	htc->ar = ar;
+
+	/* Get HIF default pipe for HTC message exchange */
+	ep = &htc->endpoint[ATH10K_HTC_EP_0];
+
+	ath10k_hif_init(ar, &htc_callbacks);
+	ath10k_hif_get_default_pipe(ar, &ep->ul_pipe_id, &ep->dl_pipe_id);
+
+	init_completion(&htc->ctl_resp);
+
+	return htc;
+}
+
+void ath10k_htc_destroy(struct ath10k_htc *htc)
+{
+	kfree(htc);
+}

drivers/net/wireless/ath/ath10k/htc.h

@@ -0,0 +1,368 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _HTC_H_
+#define _HTC_H_
+
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/bug.h>
+#include <linux/skbuff.h>
+#include <linux/semaphore.h>
+#include <linux/timer.h>
+
+struct ath10k;
+
+/****************/
+/* HTC protocol */
+/****************/
+
+/*
+ * HTC - host-target control protocol
+ *
+ * tx packets are generally <htc_hdr><payload>
+ * rx packets are more complex: <htc_hdr><payload><trailer>
+ *
+ * The payload + trailer length is stored in len.
+ * To get payload-only length one needs to payload - trailer_len.
+ *
+ * Trailer contains (possibly) multiple <htc_record>.
+ * Each record is a id-len-value.
+ *
+ * HTC header flags, control_byte0, control_byte1
+ * have different meaning depending whether its tx
+ * or rx.
+ *
+ * Alignment: htc_hdr, payload and trailer are
+ * 4-byte aligned.
+ */
+
+enum ath10k_htc_tx_flags {
+	ATH10K_HTC_FLAG_NEED_CREDIT_UPDATE = 0x01,
+	ATH10K_HTC_FLAG_SEND_BUNDLE        = 0x02
+};
+
+enum ath10k_htc_rx_flags {
+	ATH10K_HTC_FLAG_TRAILER_PRESENT = 0x02,
+	ATH10K_HTC_FLAG_BUNDLE_MASK     = 0xF0
+};
+
+struct ath10k_htc_hdr {
+	u8 eid; /* @enum ath10k_htc_ep_id */
+	u8 flags; /* @enum ath10k_htc_tx_flags, ath10k_htc_rx_flags */
+	__le16 len;
+	union {
+		u8 trailer_len; /* for rx */
+		u8 control_byte0;
+	} __packed;
+	union {
+		u8 seq_no; /* for tx */
+		u8 control_byte1;
+	} __packed;
+	u8 pad0;
+	u8 pad1;
+} __packed __aligned(4);
+
+enum ath10k_ath10k_htc_msg_id {
+	ATH10K_HTC_MSG_READY_ID                = 1,
+	ATH10K_HTC_MSG_CONNECT_SERVICE_ID      = 2,
+	ATH10K_HTC_MSG_CONNECT_SERVICE_RESP_ID = 3,
+	ATH10K_HTC_MSG_SETUP_COMPLETE_ID       = 4,
+	ATH10K_HTC_MSG_SETUP_COMPLETE_EX_ID    = 5,
+	ATH10K_HTC_MSG_SEND_SUSPEND_COMPLETE   = 6
+};
+
+enum ath10k_htc_version {
+	ATH10K_HTC_VERSION_2P0 = 0x00, /* 2.0 */
+	ATH10K_HTC_VERSION_2P1 = 0x01, /* 2.1 */
+};
+
+enum ath10k_htc_conn_flags {
+	ATH10K_HTC_CONN_FLAGS_THRESHOLD_LEVEL_ONE_FOURTH    = 0x0,
+	ATH10K_HTC_CONN_FLAGS_THRESHOLD_LEVEL_ONE_HALF      = 0x1,
+	ATH10K_HTC_CONN_FLAGS_THRESHOLD_LEVEL_THREE_FOURTHS = 0x2,
+	ATH10K_HTC_CONN_FLAGS_THRESHOLD_LEVEL_UNITY         = 0x3,
+#define ATH10K_HTC_CONN_FLAGS_THRESHOLD_LEVEL_MASK 0x3
+	ATH10K_HTC_CONN_FLAGS_REDUCE_CREDIT_DRIBBLE    = 1 << 2,
+	ATH10K_HTC_CONN_FLAGS_DISABLE_CREDIT_FLOW_CTRL = 1 << 3
+#define ATH10K_HTC_CONN_FLAGS_RECV_ALLOC_MASK 0xFF00
+#define ATH10K_HTC_CONN_FLAGS_RECV_ALLOC_LSB  8
+};
+
+enum ath10k_htc_conn_svc_status {
+	ATH10K_HTC_CONN_SVC_STATUS_SUCCESS      = 0,
+	ATH10K_HTC_CONN_SVC_STATUS_NOT_FOUND    = 1,
+	ATH10K_HTC_CONN_SVC_STATUS_FAILED       = 2,
+	ATH10K_HTC_CONN_SVC_STATUS_NO_RESOURCES = 3,
+	ATH10K_HTC_CONN_SVC_STATUS_NO_MORE_EP   = 4
+};
+
+struct ath10k_ath10k_htc_msg_hdr {
+	__le16 message_id; /* @enum htc_message_id */
+} __packed;
+
+struct ath10k_htc_unknown {
+	u8 pad0;
+	u8 pad1;
+} __packed;
+
+struct ath10k_htc_ready {
+	__le16 credit_count;
+	__le16 credit_size;
+	u8 max_endpoints;
+	u8 pad0;
+} __packed;
+
+struct ath10k_htc_ready_extended {
+	struct ath10k_htc_ready base;
+	u8 htc_version; /* @enum ath10k_htc_version */
+	u8 max_msgs_per_htc_bundle;
+	u8 pad0;
+	u8 pad1;
+} __packed;
+
+struct ath10k_htc_conn_svc {
+	__le16 service_id;
+	__le16 flags; /* @enum ath10k_htc_conn_flags */
+	u8 pad0;
+	u8 pad1;
+} __packed;
+
+struct ath10k_htc_conn_svc_response {
+	__le16 service_id;
+	u8 status; /* @enum ath10k_htc_conn_svc_status */
+	u8 eid;
+	__le16 max_msg_size;
+} __packed;
+
+struct ath10k_htc_setup_complete_extended {
+	u8 pad0;
+	u8 pad1;
+	__le32 flags; /* @enum htc_setup_complete_flags */
+	u8 max_msgs_per_bundled_recv;
+	u8 pad2;
+	u8 pad3;
+	u8 pad4;
+} __packed;
+
+struct ath10k_htc_msg {
+	struct ath10k_ath10k_htc_msg_hdr hdr;
+	union {
+		/* host-to-target */
+		struct ath10k_htc_conn_svc connect_service;
+		struct ath10k_htc_ready ready;
+		struct ath10k_htc_ready_extended ready_ext;
+		struct ath10k_htc_unknown unknown;
+		struct ath10k_htc_setup_complete_extended setup_complete_ext;
+
+		/* target-to-host */
+		struct ath10k_htc_conn_svc_response connect_service_response;
+	};
+} __packed __aligned(4);
+
+enum ath10k_ath10k_htc_record_id {
+	ATH10K_HTC_RECORD_NULL    = 0,
+	ATH10K_HTC_RECORD_CREDITS = 1
+};
+
+struct ath10k_ath10k_htc_record_hdr {
+	u8 id; /* @enum ath10k_ath10k_htc_record_id */
+	u8 len;
+	u8 pad0;
+	u8 pad1;
+} __packed;
+
+struct ath10k_htc_credit_report {
+	u8 eid; /* @enum ath10k_htc_ep_id */
+	u8 credits;
+	u8 pad0;
+	u8 pad1;
+} __packed;
+
+struct ath10k_htc_record {
+	struct ath10k_ath10k_htc_record_hdr hdr;
+	union {
+		struct ath10k_htc_credit_report credit_report[0];
+		u8 pauload[0];
+	};
+} __packed __aligned(4);
+
+/*
+ * note: the trailer offset is dynamic depending
+ * on payload length. this is only a struct layout draft
+ */
+struct ath10k_htc_frame {
+	struct ath10k_htc_hdr hdr;
+	union {
+		struct ath10k_htc_msg msg;
+		u8 payload[0];
+	};
+	struct ath10k_htc_record trailer[0];
+} __packed __aligned(4);
+
+
+/*******************/
+/* Host-side stuff */
+/*******************/
+
+enum ath10k_htc_svc_gid {
+	ATH10K_HTC_SVC_GRP_RSVD = 0,
+	ATH10K_HTC_SVC_GRP_WMI = 1,
+	ATH10K_HTC_SVC_GRP_NMI = 2,
+	ATH10K_HTC_SVC_GRP_HTT = 3,
+
+	ATH10K_HTC_SVC_GRP_TEST = 254,
+	ATH10K_HTC_SVC_GRP_LAST = 255,
+};
+
+#define SVC(group, idx) \
+	(int)(((int)(group) << 8) | (int)(idx))
+
+enum ath10k_htc_svc_id {
+	/* NOTE: service ID of 0x0000 is reserved and should never be used */
+	ATH10K_HTC_SVC_ID_RESERVED	= 0x0000,
+	ATH10K_HTC_SVC_ID_UNUSED	= ATH10K_HTC_SVC_ID_RESERVED,
+
+	ATH10K_HTC_SVC_ID_RSVD_CTRL	= SVC(ATH10K_HTC_SVC_GRP_RSVD, 1),
+	ATH10K_HTC_SVC_ID_WMI_CONTROL	= SVC(ATH10K_HTC_SVC_GRP_WMI, 0),
+	ATH10K_HTC_SVC_ID_WMI_DATA_BE	= SVC(ATH10K_HTC_SVC_GRP_WMI, 1),
+	ATH10K_HTC_SVC_ID_WMI_DATA_BK	= SVC(ATH10K_HTC_SVC_GRP_WMI, 2),
+	ATH10K_HTC_SVC_ID_WMI_DATA_VI	= SVC(ATH10K_HTC_SVC_GRP_WMI, 3),
+	ATH10K_HTC_SVC_ID_WMI_DATA_VO	= SVC(ATH10K_HTC_SVC_GRP_WMI, 4),
+
+	ATH10K_HTC_SVC_ID_NMI_CONTROL	= SVC(ATH10K_HTC_SVC_GRP_NMI, 0),
+	ATH10K_HTC_SVC_ID_NMI_DATA	= SVC(ATH10K_HTC_SVC_GRP_NMI, 1),
+
+	ATH10K_HTC_SVC_ID_HTT_DATA_MSG	= SVC(ATH10K_HTC_SVC_GRP_HTT, 0),
+
+	/* raw stream service (i.e. flash, tcmd, calibration apps) */
+	ATH10K_HTC_SVC_ID_TEST_RAW_STREAMS = SVC(ATH10K_HTC_SVC_GRP_TEST, 0),
+};
+
+#undef SVC
+
+enum ath10k_htc_ep_id {
+	ATH10K_HTC_EP_UNUSED = -1,
+	ATH10K_HTC_EP_0 = 0,
+	ATH10K_HTC_EP_1 = 1,
+	ATH10K_HTC_EP_2,
+	ATH10K_HTC_EP_3,
+	ATH10K_HTC_EP_4,
+	ATH10K_HTC_EP_5,
+	ATH10K_HTC_EP_6,
+	ATH10K_HTC_EP_7,
+	ATH10K_HTC_EP_8,
+	ATH10K_HTC_EP_COUNT,
+};
+
+struct ath10k_htc_ops {
+	void (*target_send_suspend_complete)(struct ath10k *ar);
+};
+
+struct ath10k_htc_ep_ops {
+	void (*ep_tx_complete)(struct ath10k *, struct sk_buff *);
+	void (*ep_rx_complete)(struct ath10k *, struct sk_buff *);
+};
+
+/* service connection information */
+struct ath10k_htc_svc_conn_req {
+	u16 service_id;
+	struct ath10k_htc_ep_ops ep_ops;
+	int max_send_queue_depth;
+};
+
+/* service connection response information */
+struct ath10k_htc_svc_conn_resp {
+	u8 buffer_len;
+	u8 actual_len;
+	enum ath10k_htc_ep_id eid;
+	unsigned int max_msg_len;
+	u8 connect_resp_code;
+};
+
+#define ATH10K_NUM_CONTROL_TX_BUFFERS 2
+#define ATH10K_HTC_MAX_LEN 4096
+#define ATH10K_HTC_MAX_CTRL_MSG_LEN 256
+#define ATH10K_HTC_WAIT_TIMEOUT_HZ (1*HZ)
+#define ATH10K_HTC_CONTROL_BUFFER_SIZE (ATH10K_HTC_MAX_CTRL_MSG_LEN + \
+					sizeof(struct ath10k_htc_hdr))
+#define ATH10K_HTC_CONN_SVC_TIMEOUT_HZ (1*HZ)
+
+struct ath10k_htc_ep {
+	struct ath10k_htc *htc;
+	enum ath10k_htc_ep_id eid;
+	enum ath10k_htc_svc_id service_id;
+	struct ath10k_htc_ep_ops ep_ops;
+
+	int max_tx_queue_depth;
+	int max_ep_message_len;
+	u8 ul_pipe_id;
+	u8 dl_pipe_id;
+	int ul_is_polled; /* call HIF to get tx completions */
+	int dl_is_polled; /* call HIF to fetch rx (not implemented) */
+
+	struct sk_buff_head tx_queue;
+
+	u8 seq_no; /* for debugging */
+	int tx_credits;
+	int tx_credit_size;
+	int tx_credits_per_max_message;
+	bool tx_credit_flow_enabled;
+
+	struct work_struct send_work;
+};
+
+struct ath10k_htc_svc_tx_credits {
+	u16 service_id;
+	u8  credit_allocation;
+};
+
+struct ath10k_htc {
+	struct ath10k *ar;
+	struct ath10k_htc_ep endpoint[ATH10K_HTC_EP_COUNT];
+
+	/* protects endpoint and stopping fields */
+	spinlock_t tx_lock;
+
+	struct ath10k_htc_ops htc_ops;
+
+	u8 control_resp_buffer[ATH10K_HTC_MAX_CTRL_MSG_LEN];
+	int control_resp_len;
+
+	struct completion ctl_resp;
+
+	int total_transmit_credits;
+	struct ath10k_htc_svc_tx_credits service_tx_alloc[ATH10K_HTC_EP_COUNT];
+	int target_credit_size;
+
+	bool stopping;
+};
+
+struct ath10k_htc *ath10k_htc_create(struct ath10k *ar,
+				     struct ath10k_htc_ops *htc_ops);
+int ath10k_htc_wait_target(struct ath10k_htc *htc);
+int ath10k_htc_start(struct ath10k_htc *htc);
+int ath10k_htc_connect_service(struct ath10k_htc *htc,
+			       struct ath10k_htc_svc_conn_req  *conn_req,
+			       struct ath10k_htc_svc_conn_resp *conn_resp);
+int ath10k_htc_send(struct ath10k_htc *htc, enum ath10k_htc_ep_id eid,
+		    struct sk_buff *packet);
+void ath10k_htc_stop(struct ath10k_htc *htc);
+void ath10k_htc_destroy(struct ath10k_htc *htc);
+struct sk_buff *ath10k_htc_alloc_skb(int size);
+
+#endif

drivers/net/wireless/ath/ath10k/htt.c

@@ -0,0 +1,152 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/slab.h>
+
+#include "htt.h"
+#include "core.h"
+#include "debug.h"
+
+static int ath10k_htt_htc_attach(struct ath10k_htt *htt)
+{
+	struct ath10k_htc_svc_conn_req conn_req;
+	struct ath10k_htc_svc_conn_resp conn_resp;
+	int status;
+
+	memset(&conn_req, 0, sizeof(conn_req));
+	memset(&conn_resp, 0, sizeof(conn_resp));
+
+	conn_req.ep_ops.ep_tx_complete = ath10k_htt_htc_tx_complete;
+	conn_req.ep_ops.ep_rx_complete = ath10k_htt_t2h_msg_handler;
+
+	/* connect to control service */
+	conn_req.service_id = ATH10K_HTC_SVC_ID_HTT_DATA_MSG;
+
+	status = ath10k_htc_connect_service(htt->ar->htc, &conn_req,
+					    &conn_resp);
+
+	if (status)
+		return status;
+
+	htt->eid = conn_resp.eid;
+
+	return 0;
+}
+
+struct ath10k_htt *ath10k_htt_attach(struct ath10k *ar)
+{
+	struct ath10k_htt *htt;
+	int ret;
+
+	htt = kzalloc(sizeof(*htt), GFP_KERNEL);
+	if (!htt)
+		return NULL;
+
+	htt->ar = ar;
+	htt->max_throughput_mbps = 800;
+
+	/*
+	 * Connect to HTC service.
+	 * This has to be done before calling ath10k_htt_rx_attach,
+	 * since ath10k_htt_rx_attach involves sending a rx ring configure
+	 * message to the target.
+	 */
+	if (ath10k_htt_htc_attach(htt))
+		goto err_htc_attach;
+
+	ret = ath10k_htt_tx_attach(htt);
+	if (ret) {
+		ath10k_err("could not attach htt tx (%d)\n", ret);
+		goto err_htc_attach;
+	}
+
+	if (ath10k_htt_rx_attach(htt))
+		goto err_rx_attach;
+
+	/*
+	 * Prefetch enough data to satisfy target
+	 * classification engine.
+	 * This is for LL chips. HL chips will probably
+	 * transfer all frame in the tx fragment.
+	 */
+	htt->prefetch_len =
+		36 + /* 802.11 + qos + ht */
+		4 + /* 802.1q */
+		8 + /* llc snap */
+		2; /* ip4 dscp or ip6 priority */
+
+	return htt;
+
+err_rx_attach:
+	ath10k_htt_tx_detach(htt);
+err_htc_attach:
+	kfree(htt);
+	return NULL;
+}
+
+#define HTT_TARGET_VERSION_TIMEOUT_HZ (3*HZ)
+
+static int ath10k_htt_verify_version(struct ath10k_htt *htt)
+{
+	ath10k_dbg(ATH10K_DBG_HTT,
+		   "htt target version %d.%d; host version %d.%d\n",
+		    htt->target_version_major,
+		    htt->target_version_minor,
+		    HTT_CURRENT_VERSION_MAJOR,
+		    HTT_CURRENT_VERSION_MINOR);
+
+	if (htt->target_version_major != HTT_CURRENT_VERSION_MAJOR) {
+		ath10k_err("htt major versions are incompatible!\n");
+		return -ENOTSUPP;
+	}
+
+	if (htt->target_version_minor != HTT_CURRENT_VERSION_MINOR)
+		ath10k_warn("htt minor version differ but still compatible\n");
+
+	return 0;
+}
+
+int ath10k_htt_attach_target(struct ath10k_htt *htt)
+{
+	int status;
+
+	init_completion(&htt->target_version_received);
+
+	status = ath10k_htt_h2t_ver_req_msg(htt);
+	if (status)
+		return status;
+
+	status = wait_for_completion_timeout(&htt->target_version_received,
+						HTT_TARGET_VERSION_TIMEOUT_HZ);
+	if (status <= 0) {
+		ath10k_warn("htt version request timed out\n");
+		return -ETIMEDOUT;
+	}
+
+	status = ath10k_htt_verify_version(htt);
+	if (status)
+		return status;
+
+	return ath10k_htt_send_rx_ring_cfg_ll(htt);
+}
+
+void ath10k_htt_detach(struct ath10k_htt *htt)
+{
+	ath10k_htt_rx_detach(htt);
+	ath10k_htt_tx_detach(htt);
+	kfree(htt);
+}

drivers/net/wireless/ath/ath10k/htt.h

@@ -0,0 +1,1338 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _HTT_H_
+#define _HTT_H_
+
+#include <linux/bug.h>
+
+#include "core.h"
+#include "htc.h"
+#include "rx_desc.h"
+
+#define HTT_CURRENT_VERSION_MAJOR	2
+#define HTT_CURRENT_VERSION_MINOR	1
+
+enum htt_dbg_stats_type {
+	HTT_DBG_STATS_WAL_PDEV_TXRX = 1 << 0,
+	HTT_DBG_STATS_RX_REORDER    = 1 << 1,
+	HTT_DBG_STATS_RX_RATE_INFO  = 1 << 2,
+	HTT_DBG_STATS_TX_PPDU_LOG   = 1 << 3,
+	HTT_DBG_STATS_TX_RATE_INFO  = 1 << 4,
+	/* bits 5-23 currently reserved */
+
+	HTT_DBG_NUM_STATS /* keep this last */
+};
+
+enum htt_h2t_msg_type { /* host-to-target */
+	HTT_H2T_MSG_TYPE_VERSION_REQ        = 0,
+	HTT_H2T_MSG_TYPE_TX_FRM             = 1,
+	HTT_H2T_MSG_TYPE_RX_RING_CFG        = 2,
+	HTT_H2T_MSG_TYPE_STATS_REQ          = 3,
+	HTT_H2T_MSG_TYPE_SYNC               = 4,
+	HTT_H2T_MSG_TYPE_AGGR_CFG           = 5,
+	HTT_H2T_MSG_TYPE_FRAG_DESC_BANK_CFG = 6,
+	HTT_H2T_MSG_TYPE_MGMT_TX            = 7,
+
+	HTT_H2T_NUM_MSGS /* keep this last */
+};
+
+struct htt_cmd_hdr {
+	u8 msg_type;
+} __packed;
+
+struct htt_ver_req {
+	u8 pad[sizeof(u32) - sizeof(struct htt_cmd_hdr)];
+} __packed;
+
+/*
+ * HTT tx MSDU descriptor
+ *
+ * The HTT tx MSDU descriptor is created by the host HTT SW for each
+ * tx MSDU.  The HTT tx MSDU descriptor contains the information that
+ * the target firmware needs for the FW's tx processing, particularly
+ * for creating the HW msdu descriptor.
+ * The same HTT tx descriptor is used for HL and LL systems, though
+ * a few fields within the tx descriptor are used only by LL or
+ * only by HL.
+ * The HTT tx descriptor is defined in two manners: by a struct with
+ * bitfields, and by a series of [dword offset, bit mask, bit shift]
+ * definitions.
+ * The target should use the struct def, for simplicitly and clarity,
+ * but the host shall use the bit-mast + bit-shift defs, to be endian-
+ * neutral.  Specifically, the host shall use the get/set macros built
+ * around the mask + shift defs.
+ */
+struct htt_data_tx_desc_frag {
+	__le32 paddr;
+	__le32 len;
+} __packed;
+
+enum htt_data_tx_desc_flags0 {
+	HTT_DATA_TX_DESC_FLAGS0_MAC_HDR_PRESENT = 1 << 0,
+	HTT_DATA_TX_DESC_FLAGS0_NO_AGGR         = 1 << 1,
+	HTT_DATA_TX_DESC_FLAGS0_NO_ENCRYPT      = 1 << 2,
+	HTT_DATA_TX_DESC_FLAGS0_NO_CLASSIFY     = 1 << 3,
+	HTT_DATA_TX_DESC_FLAGS0_RSVD0           = 1 << 4
+#define HTT_DATA_TX_DESC_FLAGS0_PKT_TYPE_MASK 0xE0
+#define HTT_DATA_TX_DESC_FLAGS0_PKT_TYPE_LSB 5
+};
+
+enum htt_data_tx_desc_flags1 {
+#define HTT_DATA_TX_DESC_FLAGS1_VDEV_ID_BITS 6
+#define HTT_DATA_TX_DESC_FLAGS1_VDEV_ID_MASK 0x003F
+#define HTT_DATA_TX_DESC_FLAGS1_VDEV_ID_LSB  0
+#define HTT_DATA_TX_DESC_FLAGS1_EXT_TID_BITS 5
+#define HTT_DATA_TX_DESC_FLAGS1_EXT_TID_MASK 0x07C0
+#define HTT_DATA_TX_DESC_FLAGS1_EXT_TID_LSB  6
+	HTT_DATA_TX_DESC_FLAGS1_POSTPONED        = 1 << 11,
+	HTT_DATA_TX_DESC_FLAGS1_MORE_IN_BATCH    = 1 << 12,
+	HTT_DATA_TX_DESC_FLAGS1_CKSUM_L3_OFFLOAD = 1 << 13,
+	HTT_DATA_TX_DESC_FLAGS1_CKSUM_L4_OFFLOAD = 1 << 14,
+	HTT_DATA_TX_DESC_FLAGS1_RSVD1            = 1 << 15
+};
+
+enum htt_data_tx_ext_tid {
+	HTT_DATA_TX_EXT_TID_NON_QOS_MCAST_BCAST = 16,
+	HTT_DATA_TX_EXT_TID_MGMT                = 17,
+	HTT_DATA_TX_EXT_TID_INVALID             = 31
+};
+
+#define HTT_INVALID_PEERID 0xFFFF
+
+/*
+ * htt_data_tx_desc - used for data tx path
+ *
+ * Note: vdev_id irrelevant for pkt_type == raw and no_classify == 1.
+ *       ext_tid: for qos-data frames (0-15), see %HTT_DATA_TX_EXT_TID_
+ *                for special kinds of tids
+ *       postponed: only for HL hosts. indicates if this is a resend
+ *                  (HL hosts manage queues on the host )
+ *       more_in_batch: only for HL hosts. indicates if more packets are
+ *                      pending. this allows target to wait and aggregate
+ */
+struct htt_data_tx_desc {
+	u8 flags0; /* %HTT_DATA_TX_DESC_FLAGS0_ */
+	__le16 flags1; /* %HTT_DATA_TX_DESC_FLAGS1_ */
+	__le16 len;
+	__le16 id;
+	__le32 frags_paddr;
+	__le32 peerid;
+	u8 prefetch[0]; /* start of frame, for FW classification engine */
+} __packed;
+
+enum htt_rx_ring_flags {
+	HTT_RX_RING_FLAGS_MAC80211_HDR = 1 << 0,
+	HTT_RX_RING_FLAGS_MSDU_PAYLOAD = 1 << 1,
+	HTT_RX_RING_FLAGS_PPDU_START   = 1 << 2,
+	HTT_RX_RING_FLAGS_PPDU_END     = 1 << 3,
+	HTT_RX_RING_FLAGS_MPDU_START   = 1 << 4,
+	HTT_RX_RING_FLAGS_MPDU_END     = 1 << 5,
+	HTT_RX_RING_FLAGS_MSDU_START   = 1 << 6,
+	HTT_RX_RING_FLAGS_MSDU_END     = 1 << 7,
+	HTT_RX_RING_FLAGS_RX_ATTENTION = 1 << 8,
+	HTT_RX_RING_FLAGS_FRAG_INFO    = 1 << 9,
+	HTT_RX_RING_FLAGS_UNICAST_RX   = 1 << 10,
+	HTT_RX_RING_FLAGS_MULTICAST_RX = 1 << 11,
+	HTT_RX_RING_FLAGS_CTRL_RX      = 1 << 12,
+	HTT_RX_RING_FLAGS_MGMT_RX      = 1 << 13,
+	HTT_RX_RING_FLAGS_NULL_RX      = 1 << 14,
+	HTT_RX_RING_FLAGS_PHY_DATA_RX  = 1 << 15
+};
+
+struct htt_rx_ring_setup_ring {
+	__le32 fw_idx_shadow_reg_paddr;
+	__le32 rx_ring_base_paddr;
+	__le16 rx_ring_len; /* in 4-byte words */
+	__le16 rx_ring_bufsize; /* rx skb size - in bytes */
+	__le16 flags; /* %HTT_RX_RING_FLAGS_ */
+	__le16 fw_idx_init_val;
+
+	/* the following offsets are in 4-byte units */
+	__le16 mac80211_hdr_offset;
+	__le16 msdu_payload_offset;
+	__le16 ppdu_start_offset;
+	__le16 ppdu_end_offset;
+	__le16 mpdu_start_offset;
+	__le16 mpdu_end_offset;
+	__le16 msdu_start_offset;
+	__le16 msdu_end_offset;
+	__le16 rx_attention_offset;
+	__le16 frag_info_offset;
+} __packed;
+
+struct htt_rx_ring_setup_hdr {
+	u8 num_rings; /* supported values: 1, 2 */
+	__le16 rsvd0;
+} __packed;
+
+struct htt_rx_ring_setup {
+	struct htt_rx_ring_setup_hdr hdr;
+	struct htt_rx_ring_setup_ring rings[0];
+} __packed;
+
+/*
+ * htt_stats_req - request target to send specified statistics
+ *
+ * @msg_type: hardcoded %HTT_H2T_MSG_TYPE_STATS_REQ
+ * @upload_types: see %htt_dbg_stats_type. this is 24bit field actually
+ *	so make sure its little-endian.
+ * @reset_types: see %htt_dbg_stats_type. this is 24bit field actually
+ *	so make sure its little-endian.
+ * @cfg_val: stat_type specific configuration
+ * @stat_type: see %htt_dbg_stats_type
+ * @cookie_lsb: used for confirmation message from target->host
+ * @cookie_msb: ditto as %cookie
+ */
+struct htt_stats_req {
+	u8 upload_types[3];
+	u8 rsvd0;
+	u8 reset_types[3];
+	struct {
+		u8 mpdu_bytes;
+		u8 mpdu_num_msdus;
+		u8 msdu_bytes;
+	} __packed;
+	u8 stat_type;
+	__le32 cookie_lsb;
+	__le32 cookie_msb;
+} __packed;
+
+#define HTT_STATS_REQ_CFG_STAT_TYPE_INVALID 0xff
+
+/*
+ * htt_oob_sync_req - request out-of-band sync
+ *
+ * The HTT SYNC tells the target to suspend processing of subsequent
+ * HTT host-to-target messages until some other target agent locally
+ * informs the target HTT FW that the current sync counter is equal to
+ * or greater than (in a modulo sense) the sync counter specified in
+ * the SYNC message.
+ *
+ * This allows other host-target components to synchronize their operation
+ * with HTT, e.g. to ensure that tx frames don't get transmitted until a
+ * security key has been downloaded to and activated by the target.
+ * In the absence of any explicit synchronization counter value
+ * specification, the target HTT FW will use zero as the default current
+ * sync value.
+ *
+ * The HTT target FW will suspend its host->target message processing as long
+ * as 0 < (in-band sync counter - out-of-band sync counter) & 0xff < 128.
+ */
+struct htt_oob_sync_req {
+	u8 sync_count;
+	__le16 rsvd0;
+} __packed;
+
+#define HTT_AGGR_CONF_MAX_NUM_AMSDU_SUBFRAMES_MASK 0x1F
+#define HTT_AGGR_CONF_MAX_NUM_AMSDU_SUBFRAMES_LSB  0
+
+struct htt_aggr_conf {
+	u8 max_num_ampdu_subframes;
+	union {
+		/* dont use bitfields; undefined behaviour */
+		u8 flags; /* see %HTT_AGGR_CONF_MAX_NUM_AMSDU_SUBFRAMES_ */
+		u8 max_num_amsdu_subframes:5;
+	} __packed;
+} __packed;
+
+#define HTT_MGMT_FRM_HDR_DOWNLOAD_LEN 32
+
+struct htt_mgmt_tx_desc {
+	u8 pad[sizeof(u32) - sizeof(struct htt_cmd_hdr)];
+	__le32 msdu_paddr;
+	__le32 desc_id;
+	__le32 len;
+	__le32 vdev_id;
+	u8 hdr[HTT_MGMT_FRM_HDR_DOWNLOAD_LEN];
+} __packed;
+
+enum htt_mgmt_tx_status {
+	HTT_MGMT_TX_STATUS_OK    = 0,
+	HTT_MGMT_TX_STATUS_RETRY = 1,
+	HTT_MGMT_TX_STATUS_DROP  = 2
+};
+
+/*=== target -> host messages ===============================================*/
+
+
+enum htt_t2h_msg_type {
+	HTT_T2H_MSG_TYPE_VERSION_CONF		= 0x0,
+	HTT_T2H_MSG_TYPE_RX_IND			= 0x1,
+	HTT_T2H_MSG_TYPE_RX_FLUSH		= 0x2,
+	HTT_T2H_MSG_TYPE_PEER_MAP		= 0x3,
+	HTT_T2H_MSG_TYPE_PEER_UNMAP		= 0x4,
+	HTT_T2H_MSG_TYPE_RX_ADDBA		= 0x5,
+	HTT_T2H_MSG_TYPE_RX_DELBA		= 0x6,
+	HTT_T2H_MSG_TYPE_TX_COMPL_IND		= 0x7,
+	HTT_T2H_MSG_TYPE_PKTLOG			= 0x8,
+	HTT_T2H_MSG_TYPE_STATS_CONF		= 0x9,
+	HTT_T2H_MSG_TYPE_RX_FRAG_IND		= 0xa,
+	HTT_T2H_MSG_TYPE_SEC_IND		= 0xb,
+	HTT_T2H_MSG_TYPE_RC_UPDATE_IND		= 0xc,
+	HTT_T2H_MSG_TYPE_TX_INSPECT_IND		= 0xd,
+	HTT_T2H_MSG_TYPE_MGMT_TX_COMPLETION	= 0xe,
+	HTT_T2H_MSG_TYPE_TEST,
+	/* keep this last */
+	HTT_T2H_NUM_MSGS
+};
+
+/*
+ * htt_resp_hdr - header for target-to-host messages
+ *
+ * msg_type: see htt_t2h_msg_type
+ */
+struct htt_resp_hdr {
+	u8 msg_type;
+} __packed;
+
+#define HTT_RESP_HDR_MSG_TYPE_OFFSET 0
+#define HTT_RESP_HDR_MSG_TYPE_MASK   0xff
+#define HTT_RESP_HDR_MSG_TYPE_LSB    0
+
+/* htt_ver_resp - response sent for htt_ver_req */
+struct htt_ver_resp {
+	u8 minor;
+	u8 major;
+	u8 rsvd0;
+} __packed;
+
+struct htt_mgmt_tx_completion {
+	u8 rsvd0;
+	u8 rsvd1;
+	u8 rsvd2;
+	__le32 desc_id;
+	__le32 status;
+} __packed;
+
+#define HTT_RX_INDICATION_INFO0_EXT_TID_MASK  (0x3F)
+#define HTT_RX_INDICATION_INFO0_EXT_TID_LSB   (0)
+#define HTT_RX_INDICATION_INFO0_FLUSH_VALID   (1 << 6)
+#define HTT_RX_INDICATION_INFO0_RELEASE_VALID (1 << 7)
+
+#define HTT_RX_INDICATION_INFO1_FLUSH_START_SEQNO_MASK   0x0000003F
+#define HTT_RX_INDICATION_INFO1_FLUSH_START_SEQNO_LSB    0
+#define HTT_RX_INDICATION_INFO1_FLUSH_END_SEQNO_MASK     0x00000FC0
+#define HTT_RX_INDICATION_INFO1_FLUSH_END_SEQNO_LSB      6
+#define HTT_RX_INDICATION_INFO1_RELEASE_START_SEQNO_MASK 0x0003F000
+#define HTT_RX_INDICATION_INFO1_RELEASE_START_SEQNO_LSB  12
+#define HTT_RX_INDICATION_INFO1_RELEASE_END_SEQNO_MASK   0x00FC0000
+#define HTT_RX_INDICATION_INFO1_RELEASE_END_SEQNO_LSB    18
+#define HTT_RX_INDICATION_INFO1_NUM_MPDU_RANGES_MASK     0xFF000000
+#define HTT_RX_INDICATION_INFO1_NUM_MPDU_RANGES_LSB      24
+
+struct htt_rx_indication_hdr {
+	u8 info0; /* %HTT_RX_INDICATION_INFO0_ */
+	__le16 peer_id;
+	__le32 info1; /* %HTT_RX_INDICATION_INFO1_ */
+} __packed;
+
+#define HTT_RX_INDICATION_INFO0_PHY_ERR_VALID    (1 << 0)
+#define HTT_RX_INDICATION_INFO0_LEGACY_RATE_MASK (0x1E)
+#define HTT_RX_INDICATION_INFO0_LEGACY_RATE_LSB  (1)
+#define HTT_RX_INDICATION_INFO0_LEGACY_RATE_CCK  (1 << 5)
+#define HTT_RX_INDICATION_INFO0_END_VALID        (1 << 6)
+#define HTT_RX_INDICATION_INFO0_START_VALID      (1 << 7)
+
+#define HTT_RX_INDICATION_INFO1_VHT_SIG_A1_MASK    0x00FFFFFF
+#define HTT_RX_INDICATION_INFO1_VHT_SIG_A1_LSB     0
+#define HTT_RX_INDICATION_INFO1_PREAMBLE_TYPE_MASK 0xFF000000
+#define HTT_RX_INDICATION_INFO1_PREAMBLE_TYPE_LSB  24
+
+#define HTT_RX_INDICATION_INFO2_VHT_SIG_A1_MASK 0x00FFFFFF
+#define HTT_RX_INDICATION_INFO2_VHT_SIG_A1_LSB  0
+#define HTT_RX_INDICATION_INFO2_SERVICE_MASK    0xFF000000
+#define HTT_RX_INDICATION_INFO2_SERVICE_LSB     24
+
+enum htt_rx_legacy_rate {
+	HTT_RX_OFDM_48 = 0,
+	HTT_RX_OFDM_24 = 1,
+	HTT_RX_OFDM_12,
+	HTT_RX_OFDM_6,
+	HTT_RX_OFDM_54,
+	HTT_RX_OFDM_36,
+	HTT_RX_OFDM_18,
+	HTT_RX_OFDM_9,
+
+	/* long preamble */
+	HTT_RX_CCK_11_LP = 0,
+	HTT_RX_CCK_5_5_LP = 1,
+	HTT_RX_CCK_2_LP,
+	HTT_RX_CCK_1_LP,
+	/* short preamble */
+	HTT_RX_CCK_11_SP,
+	HTT_RX_CCK_5_5_SP,
+	HTT_RX_CCK_2_SP
+};
+
+enum htt_rx_legacy_rate_type {
+	HTT_RX_LEGACY_RATE_OFDM = 0,
+	HTT_RX_LEGACY_RATE_CCK
+};
+
+enum htt_rx_preamble_type {
+	HTT_RX_LEGACY        = 0x4,
+	HTT_RX_HT            = 0x8,
+	HTT_RX_HT_WITH_TXBF  = 0x9,
+	HTT_RX_VHT           = 0xC,
+	HTT_RX_VHT_WITH_TXBF = 0xD,
+};
+
+/*
+ * Fields: phy_err_valid, phy_err_code, tsf,
+ * usec_timestamp, sub_usec_timestamp
+ * ..are valid only if end_valid == 1.
+ *
+ * Fields: rssi_chains, legacy_rate_type,
+ * legacy_rate_cck, preamble_type, service,
+ * vht_sig_*
+ * ..are valid only if start_valid == 1;
+ */
+struct htt_rx_indication_ppdu {
+	u8 combined_rssi;
+	u8 sub_usec_timestamp;
+	u8 phy_err_code;
+	u8 info0; /* HTT_RX_INDICATION_INFO0_ */
+	struct {
+		u8 pri20_db;
+		u8 ext20_db;
+		u8 ext40_db;
+		u8 ext80_db;
+	} __packed rssi_chains[4];
+	__le32 tsf;
+	__le32 usec_timestamp;
+	__le32 info1; /* HTT_RX_INDICATION_INFO1_ */
+	__le32 info2; /* HTT_RX_INDICATION_INFO2_ */
+} __packed;
+
+enum htt_rx_mpdu_status {
+	HTT_RX_IND_MPDU_STATUS_UNKNOWN = 0x0,
+	HTT_RX_IND_MPDU_STATUS_OK,
+	HTT_RX_IND_MPDU_STATUS_ERR_FCS,
+	HTT_RX_IND_MPDU_STATUS_ERR_DUP,
+	HTT_RX_IND_MPDU_STATUS_ERR_REPLAY,
+	HTT_RX_IND_MPDU_STATUS_ERR_INV_PEER,
+	/* only accept EAPOL frames */
+	HTT_RX_IND_MPDU_STATUS_UNAUTH_PEER,
+	HTT_RX_IND_MPDU_STATUS_OUT_OF_SYNC,
+	/* Non-data in promiscous mode */
+	HTT_RX_IND_MPDU_STATUS_MGMT_CTRL,
+	HTT_RX_IND_MPDU_STATUS_TKIP_MIC_ERR,
+	HTT_RX_IND_MPDU_STATUS_DECRYPT_ERR,
+	HTT_RX_IND_MPDU_STATUS_MPDU_LENGTH_ERR,
+	HTT_RX_IND_MPDU_STATUS_ENCRYPT_REQUIRED_ERR,
+	HTT_RX_IND_MPDU_STATUS_PRIVACY_ERR,
+
+	/*
+	 * MISC: discard for unspecified reasons.
+	 * Leave this enum value last.
+	 */
+	HTT_RX_IND_MPDU_STATUS_ERR_MISC = 0xFF
+};
+
+struct htt_rx_indication_mpdu_range {
+	u8 mpdu_count;
+	u8 mpdu_range_status; /* %htt_rx_mpdu_status */
+	u8 pad0;
+	u8 pad1;
+} __packed;
+
+struct htt_rx_indication_prefix {
+	__le16 fw_rx_desc_bytes;
+	u8 pad0;
+	u8 pad1;
+};
+
+struct htt_rx_indication {
+	struct htt_rx_indication_hdr hdr;
+	struct htt_rx_indication_ppdu ppdu;
+	struct htt_rx_indication_prefix prefix;
+
+	/*
+	 * the following fields are both dynamically sized, so
+	 * take care addressing them
+	 */
+
+	/* the size of this is %fw_rx_desc_bytes */
+	struct fw_rx_desc_base fw_desc;
+
+	/*
+	 * %mpdu_ranges starts after &%prefix + roundup(%fw_rx_desc_bytes, 4)
+	 * and has %num_mpdu_ranges elements.
+	 */
+	struct htt_rx_indication_mpdu_range mpdu_ranges[0];
+} __packed;
+
+static inline struct htt_rx_indication_mpdu_range *
+		htt_rx_ind_get_mpdu_ranges(struct htt_rx_indication *rx_ind)
+{
+	void *ptr = rx_ind;
+
+	ptr += sizeof(rx_ind->hdr)
+	     + sizeof(rx_ind->ppdu)
+	     + sizeof(rx_ind->prefix)
+	     + roundup(__le16_to_cpu(rx_ind->prefix.fw_rx_desc_bytes), 4);
+	return ptr;
+}
+
+enum htt_rx_flush_mpdu_status {
+	HTT_RX_FLUSH_MPDU_DISCARD = 0,
+	HTT_RX_FLUSH_MPDU_REORDER = 1,
+};
+
+/*
+ * htt_rx_flush - discard or reorder given range of mpdus
+ *
+ * Note: host must check if all sequence numbers between
+ *	[seq_num_start, seq_num_end-1] are valid.
+ */
+struct htt_rx_flush {
+	__le16 peer_id;
+	u8 tid;
+	u8 rsvd0;
+	u8 mpdu_status; /* %htt_rx_flush_mpdu_status */
+	u8 seq_num_start; /* it is 6 LSBs of 802.11 seq no */
+	u8 seq_num_end; /* it is 6 LSBs of 802.11 seq no */
+};
+
+struct htt_rx_peer_map {
+	u8 vdev_id;
+	__le16 peer_id;
+	u8 addr[6];
+	u8 rsvd0;
+	u8 rsvd1;
+} __packed;
+
+struct htt_rx_peer_unmap {
+	u8 rsvd0;
+	__le16 peer_id;
+} __packed;
+
+enum htt_security_types {
+	HTT_SECURITY_NONE,
+	HTT_SECURITY_WEP128,
+	HTT_SECURITY_WEP104,
+	HTT_SECURITY_WEP40,
+	HTT_SECURITY_TKIP,
+	HTT_SECURITY_TKIP_NOMIC,
+	HTT_SECURITY_AES_CCMP,
+	HTT_SECURITY_WAPI,
+
+	HTT_NUM_SECURITY_TYPES /* keep this last! */
+};
+
+enum htt_security_flags {
+#define HTT_SECURITY_TYPE_MASK 0x7F
+#define HTT_SECURITY_TYPE_LSB  0
+	HTT_SECURITY_IS_UNICAST = 1 << 7
+};
+
+struct htt_security_indication {
+	union {
+		/* dont use bitfields; undefined behaviour */
+		u8 flags; /* %htt_security_flags */
+		struct {
+			u8 security_type:7, /* %htt_security_types */
+			   is_unicast:1;
+		} __packed;
+	} __packed;
+	__le16 peer_id;
+	u8 michael_key[8];
+	u8 wapi_rsc[16];
+} __packed;
+
+#define HTT_RX_BA_INFO0_TID_MASK     0x000F
+#define HTT_RX_BA_INFO0_TID_LSB      0
+#define HTT_RX_BA_INFO0_PEER_ID_MASK 0xFFF0
+#define HTT_RX_BA_INFO0_PEER_ID_LSB  4
+
+struct htt_rx_addba {
+	u8 window_size;
+	__le16 info0; /* %HTT_RX_BA_INFO0_ */
+} __packed;
+
+struct htt_rx_delba {
+	u8 rsvd0;
+	__le16 info0; /* %HTT_RX_BA_INFO0_ */
+} __packed;
+
+enum htt_data_tx_status {
+	HTT_DATA_TX_STATUS_OK            = 0,
+	HTT_DATA_TX_STATUS_DISCARD       = 1,
+	HTT_DATA_TX_STATUS_NO_ACK        = 2,
+	HTT_DATA_TX_STATUS_POSTPONE      = 3, /* HL only */
+	HTT_DATA_TX_STATUS_DOWNLOAD_FAIL = 128
+};
+
+enum htt_data_tx_flags {
+#define HTT_DATA_TX_STATUS_MASK 0x07
+#define HTT_DATA_TX_STATUS_LSB  0
+#define HTT_DATA_TX_TID_MASK    0x78
+#define HTT_DATA_TX_TID_LSB     3
+	HTT_DATA_TX_TID_INVALID = 1 << 7
+};
+
+#define HTT_TX_COMPL_INV_MSDU_ID 0xFFFF
+
+struct htt_data_tx_completion {
+	union {
+		u8 flags;
+		struct {
+			u8 status:3,
+			   tid:4,
+			   tid_invalid:1;
+		} __packed;
+	} __packed;
+	u8 num_msdus;
+	u8 rsvd0;
+	__le16 msdus[0]; /* variable length based on %num_msdus */
+} __packed;
+
+struct htt_tx_compl_ind_base {
+	u32 hdr;
+	u16 payload[1/*or more*/];
+} __packed;
+
+struct htt_rc_tx_done_params {
+	u32 rate_code;
+	u32 rate_code_flags;
+	u32 flags;
+	u32 num_enqued; /* 1 for non-AMPDU */
+	u32 num_retries;
+	u32 num_failed; /* for AMPDU */
+	u32 ack_rssi;
+	u32 time_stamp;
+	u32 is_probe;
+};
+
+struct htt_rc_update {
+	u8 vdev_id;
+	__le16 peer_id;
+	u8 addr[6];
+	u8 num_elems;
+	u8 rsvd0;
+	struct htt_rc_tx_done_params params[0]; /* variable length %num_elems */
+} __packed;
+
+/* see htt_rx_indication for similar fields and descriptions */
+struct htt_rx_fragment_indication {
+	union {
+		u8 info0; /* %HTT_RX_FRAG_IND_INFO0_ */
+		struct {
+			u8 ext_tid:5,
+			   flush_valid:1;
+		} __packed;
+	} __packed;
+	__le16 peer_id;
+	__le32 info1; /* %HTT_RX_FRAG_IND_INFO1_ */
+	__le16 fw_rx_desc_bytes;
+	__le16 rsvd0;
+
+	u8 fw_msdu_rx_desc[0];
+} __packed;
+
+#define HTT_RX_FRAG_IND_INFO0_EXT_TID_MASK     0x1F
+#define HTT_RX_FRAG_IND_INFO0_EXT_TID_LSB      0
+#define HTT_RX_FRAG_IND_INFO0_FLUSH_VALID_MASK 0x20
+#define HTT_RX_FRAG_IND_INFO0_FLUSH_VALID_LSB  5
+
+#define HTT_RX_FRAG_IND_INFO1_FLUSH_SEQ_NUM_START_MASK 0x0000003F
+#define HTT_RX_FRAG_IND_INFO1_FLUSH_SEQ_NUM_START_LSB  0
+#define HTT_RX_FRAG_IND_INFO1_FLUSH_SEQ_NUM_END_MASK   0x00000FC0
+#define HTT_RX_FRAG_IND_INFO1_FLUSH_SEQ_NUM_END_LSB    6
+
+/*
+ * target -> host test message definition
+ *
+ * The following field definitions describe the format of the test
+ * message sent from the target to the host.
+ * The message consists of a 4-octet header, followed by a variable
+ * number of 32-bit integer values, followed by a variable number
+ * of 8-bit character values.
+ *
+ * |31                         16|15           8|7            0|
+ * |-----------------------------------------------------------|
+ * |          num chars          |   num ints   |   msg type   |
+ * |-----------------------------------------------------------|
+ * |                           int 0                           |
+ * |-----------------------------------------------------------|
+ * |                           int 1                           |
+ * |-----------------------------------------------------------|
+ * |                            ...                            |
+ * |-----------------------------------------------------------|
+ * |    char 3    |    char 2    |    char 1    |    char 0    |
+ * |-----------------------------------------------------------|
+ * |              |              |      ...     |    char 4    |
+ * |-----------------------------------------------------------|
+ *   - MSG_TYPE
+ *     Bits 7:0
+ *     Purpose: identifies this as a test message
+ *     Value: HTT_MSG_TYPE_TEST
+ *   - NUM_INTS
+ *     Bits 15:8
+ *     Purpose: indicate how many 32-bit integers follow the message header
+ *   - NUM_CHARS
+ *     Bits 31:16
+ *     Purpose: indicate how many 8-bit charaters follow the series of integers
+ */
+struct htt_rx_test {
+	u8 num_ints;
+	__le16 num_chars;
+
+	/* payload consists of 2 lists:
+	 *  a) num_ints * sizeof(__le32)
+	 *  b) num_chars * sizeof(u8) aligned to 4bytes */
+	u8 payload[0];
+} __packed;
+
+static inline __le32 *htt_rx_test_get_ints(struct htt_rx_test *rx_test)
+{
+	return (__le32 *)rx_test->payload;
+}
+
+static inline u8 *htt_rx_test_get_chars(struct htt_rx_test *rx_test)
+{
+	return rx_test->payload + (rx_test->num_ints * sizeof(__le32));
+}
+
+/*
+ * target -> host packet log message
+ *
+ * The following field definitions describe the format of the packet log
+ * message sent from the target to the host.
+ * The message consists of a 4-octet header,followed by a variable number
+ * of 32-bit character values.
+ *
+ * |31          24|23          16|15           8|7            0|
+ * |-----------------------------------------------------------|
+ * |              |              |              |   msg type   |
+ * |-----------------------------------------------------------|
+ * |                        payload                            |
+ * |-----------------------------------------------------------|
+ *   - MSG_TYPE
+ *     Bits 7:0
+ *     Purpose: identifies this as a test message
+ *     Value: HTT_MSG_TYPE_PACKETLOG
+ */
+struct htt_pktlog_msg {
+	u8 pad[3];
+	__le32 payload[1 /* or more */];
+} __packed;
+
+struct htt_dbg_stats_rx_reorder_stats {
+	/* Non QoS MPDUs received */
+	__le32 deliver_non_qos;
+
+	/* MPDUs received in-order */
+	__le32 deliver_in_order;
+
+	/* Flush due to reorder timer expired */
+	__le32 deliver_flush_timeout;
+
+	/* Flush due to move out of window */
+	__le32 deliver_flush_oow;
+
+	/* Flush due to DELBA */
+	__le32 deliver_flush_delba;
+
+	/* MPDUs dropped due to FCS error */
+	__le32 fcs_error;
+
+	/* MPDUs dropped due to monitor mode non-data packet */
+	__le32 mgmt_ctrl;
+
+	/* MPDUs dropped due to invalid peer */
+	__le32 invalid_peer;
+
+	/* MPDUs dropped due to duplication (non aggregation) */
+	__le32 dup_non_aggr;
+
+	/* MPDUs dropped due to processed before */
+	__le32 dup_past;
+
+	/* MPDUs dropped due to duplicate in reorder queue */
+	__le32 dup_in_reorder;
+
+	/* Reorder timeout happened */
+	__le32 reorder_timeout;
+
+	/* invalid bar ssn */
+	__le32 invalid_bar_ssn;
+
+	/* reorder reset due to bar ssn */
+	__le32 ssn_reset;
+};
+
+struct htt_dbg_stats_wal_tx_stats {
+	/* Num HTT cookies queued to dispatch list */
+	__le32 comp_queued;
+
+	/* Num HTT cookies dispatched */
+	__le32 comp_delivered;
+
+	/* Num MSDU queued to WAL */
+	__le32 msdu_enqued;
+
+	/* Num MPDU queue to WAL */
+	__le32 mpdu_enqued;
+
+	/* Num MSDUs dropped by WMM limit */
+	__le32 wmm_drop;
+
+	/* Num Local frames queued */
+	__le32 local_enqued;
+
+	/* Num Local frames done */
+	__le32 local_freed;
+
+	/* Num queued to HW */
+	__le32 hw_queued;
+
+	/* Num PPDU reaped from HW */
+	__le32 hw_reaped;
+
+	/* Num underruns */
+	__le32 underrun;
+
+	/* Num PPDUs cleaned up in TX abort */
+	__le32 tx_abort;
+
+	/* Num MPDUs requed by SW */
+	__le32 mpdus_requed;
+
+	/* excessive retries */
+	__le32 tx_ko;
+
+	/* data hw rate code */
+	__le32 data_rc;
+
+	/* Scheduler self triggers */
+	__le32 self_triggers;
+
+	/* frames dropped due to excessive sw retries */
+	__le32 sw_retry_failure;
+
+	/* illegal rate phy errors  */
+	__le32 illgl_rate_phy_err;
+
+	/* wal pdev continous xretry */
+	__le32 pdev_cont_xretry;
+
+	/* wal pdev continous xretry */
+	__le32 pdev_tx_timeout;
+
+	/* wal pdev resets  */
+	__le32 pdev_resets;
+
+	__le32 phy_underrun;
+
+	/* MPDU is more than txop limit */
+	__le32 txop_ovf;
+} __packed;
+
+struct htt_dbg_stats_wal_rx_stats {
+	/* Cnts any change in ring routing mid-ppdu */
+	__le32 mid_ppdu_route_change;
+
+	/* Total number of statuses processed */
+	__le32 status_rcvd;
+
+	/* Extra frags on rings 0-3 */
+	__le32 r0_frags;
+	__le32 r1_frags;
+	__le32 r2_frags;
+	__le32 r3_frags;
+
+	/* MSDUs / MPDUs delivered to HTT */
+	__le32 htt_msdus;
+	__le32 htt_mpdus;
+
+	/* MSDUs / MPDUs delivered to local stack */
+	__le32 loc_msdus;
+	__le32 loc_mpdus;
+
+	/* AMSDUs that have more MSDUs than the status ring size */
+	__le32 oversize_amsdu;
+
+	/* Number of PHY errors */
+	__le32 phy_errs;
+
+	/* Number of PHY errors drops */
+	__le32 phy_err_drop;
+
+	/* Number of mpdu errors - FCS, MIC, ENC etc. */
+	__le32 mpdu_errs;
+} __packed;
+
+struct htt_dbg_stats_wal_peer_stats {
+	__le32 dummy; /* REMOVE THIS ONCE REAL PEER STAT COUNTERS ARE ADDED */
+} __packed;
+
+struct htt_dbg_stats_wal_pdev_txrx {
+	struct htt_dbg_stats_wal_tx_stats tx_stats;
+	struct htt_dbg_stats_wal_rx_stats rx_stats;
+	struct htt_dbg_stats_wal_peer_stats peer_stats;
+} __packed;
+
+struct htt_dbg_stats_rx_rate_info {
+	__le32 mcs[10];
+	__le32 sgi[10];
+	__le32 nss[4];
+	__le32 stbc[10];
+	__le32 bw[3];
+	__le32 pream[6];
+	__le32 ldpc;
+	__le32 txbf;
+};
+
+/*
+ * htt_dbg_stats_status -
+ * present -     The requested stats have been delivered in full.
+ *               This indicates that either the stats information was contained
+ *               in its entirety within this message, or else this message
+ *               completes the delivery of the requested stats info that was
+ *               partially delivered through earlier STATS_CONF messages.
+ * partial -     The requested stats have been delivered in part.
+ *               One or more subsequent STATS_CONF messages with the same
+ *               cookie value will be sent to deliver the remainder of the
+ *               information.
+ * error -       The requested stats could not be delivered, for example due
+ *               to a shortage of memory to construct a message holding the
+ *               requested stats.
+ * invalid -     The requested stat type is either not recognized, or the
+ *               target is configured to not gather the stats type in question.
+ * - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+ * series_done - This special value indicates that no further stats info
+ *               elements are present within a series of stats info elems
+ *               (within a stats upload confirmation message).
+ */
+enum htt_dbg_stats_status {
+	HTT_DBG_STATS_STATUS_PRESENT     = 0,
+	HTT_DBG_STATS_STATUS_PARTIAL     = 1,
+	HTT_DBG_STATS_STATUS_ERROR       = 2,
+	HTT_DBG_STATS_STATUS_INVALID     = 3,
+	HTT_DBG_STATS_STATUS_SERIES_DONE = 7
+};
+
+/*
+ * target -> host statistics upload
+ *
+ * The following field definitions describe the format of the HTT target
+ * to host stats upload confirmation message.
+ * The message contains a cookie echoed from the HTT host->target stats
+ * upload request, which identifies which request the confirmation is
+ * for, and a series of tag-length-value stats information elements.
+ * The tag-length header for each stats info element also includes a
+ * status field, to indicate whether the request for the stat type in
+ * question was fully met, partially met, unable to be met, or invalid
+ * (if the stat type in question is disabled in the target).
+ * A special value of all 1's in this status field is used to indicate
+ * the end of the series of stats info elements.
+ *
+ *
+ * |31                         16|15           8|7   5|4       0|
+ * |------------------------------------------------------------|
+ * |                  reserved                  |    msg type   |
+ * |------------------------------------------------------------|
+ * |                        cookie LSBs                         |
+ * |------------------------------------------------------------|
+ * |                        cookie MSBs                         |
+ * |------------------------------------------------------------|
+ * |      stats entry length     |   reserved   |  S  |stat type|
+ * |------------------------------------------------------------|
+ * |                                                            |
+ * |                  type-specific stats info                  |
+ * |                                                            |
+ * |------------------------------------------------------------|
+ * |      stats entry length     |   reserved   |  S  |stat type|
+ * |------------------------------------------------------------|
+ * |                                                            |
+ * |                  type-specific stats info                  |
+ * |                                                            |
+ * |------------------------------------------------------------|
+ * |              n/a            |   reserved   | 111 |   n/a   |
+ * |------------------------------------------------------------|
+ * Header fields:
+ *  - MSG_TYPE
+ *    Bits 7:0
+ *    Purpose: identifies this is a statistics upload confirmation message
+ *    Value: 0x9
+ *  - COOKIE_LSBS
+ *    Bits 31:0
+ *    Purpose: Provide a mechanism to match a target->host stats confirmation
+ *        message with its preceding host->target stats request message.
+ *    Value: LSBs of the opaque cookie specified by the host-side requestor
+ *  - COOKIE_MSBS
+ *    Bits 31:0
+ *    Purpose: Provide a mechanism to match a target->host stats confirmation
+ *        message with its preceding host->target stats request message.
+ *    Value: MSBs of the opaque cookie specified by the host-side requestor
+ *
+ * Stats Information Element tag-length header fields:
+ *  - STAT_TYPE
+ *    Bits 4:0
+ *    Purpose: identifies the type of statistics info held in the
+ *        following information element
+ *    Value: htt_dbg_stats_type
+ *  - STATUS
+ *    Bits 7:5
+ *    Purpose: indicate whether the requested stats are present
+ *    Value: htt_dbg_stats_status, including a special value (0x7) to mark
+ *        the completion of the stats entry series
+ *  - LENGTH
+ *    Bits 31:16
+ *    Purpose: indicate the stats information size
+ *    Value: This field specifies the number of bytes of stats information
+ *       that follows the element tag-length header.
+ *       It is expected but not required that this length is a multiple of
+ *       4 bytes.  Even if the length is not an integer multiple of 4, the
+ *       subsequent stats entry header will begin on a 4-byte aligned
+ *       boundary.
+ */
+
+#define HTT_STATS_CONF_ITEM_INFO_STAT_TYPE_MASK 0x1F
+#define HTT_STATS_CONF_ITEM_INFO_STAT_TYPE_LSB  0
+#define HTT_STATS_CONF_ITEM_INFO_STATUS_MASK    0xE0
+#define HTT_STATS_CONF_ITEM_INFO_STATUS_LSB     5
+
+struct htt_stats_conf_item {
+	union {
+		u8 info;
+		struct {
+			u8 stat_type:5; /* %HTT_DBG_STATS_ */
+			u8 status:3; /* %HTT_DBG_STATS_STATUS_ */
+		} __packed;
+	} __packed;
+	u8 pad;
+	__le16 length;
+	u8 payload[0]; /* roundup(length, 4) long */
+} __packed;
+
+struct htt_stats_conf {
+	u8 pad[3];
+	__le32 cookie_lsb;
+	__le32 cookie_msb;
+
+	/* each item has variable length! */
+	struct htt_stats_conf_item items[0];
+} __packed;
+
+static inline struct htt_stats_conf_item *htt_stats_conf_next_item(
+					const struct htt_stats_conf_item *item)
+{
+	return (void *)item + sizeof(*item) + roundup(item->length, 4);
+}
+/*
+ * host -> target FRAG DESCRIPTOR/MSDU_EXT DESC bank
+ *
+ * The following field definitions describe the format of the HTT host
+ * to target frag_desc/msdu_ext bank configuration message.
+ * The message contains the based address and the min and max id of the
+ * MSDU_EXT/FRAG_DESC that will be used by the HTT to map MSDU DESC and
+ * MSDU_EXT/FRAG_DESC.
+ * HTT will use id in HTT descriptor instead sending the frag_desc_ptr.
+ * For QCA988X HW the firmware will use fragment_desc_ptr but in WIFI2.0
+ * the hardware does the mapping/translation.
+ *
+ * Total banks that can be configured is configured to 16.
+ *
+ * This should be called before any TX has be initiated by the HTT
+ *
+ * |31                         16|15           8|7   5|4       0|
+ * |------------------------------------------------------------|
+ * | DESC_SIZE    |  NUM_BANKS   | RES |SWP|pdev|    msg type   |
+ * |------------------------------------------------------------|
+ * |                     BANK0_BASE_ADDRESS                     |
+ * |------------------------------------------------------------|
+ * |                            ...                             |
+ * |------------------------------------------------------------|
+ * |                    BANK15_BASE_ADDRESS                     |
+ * |------------------------------------------------------------|
+ * |       BANK0_MAX_ID          |       BANK0_MIN_ID           |
+ * |------------------------------------------------------------|
+ * |                            ...                             |
+ * |------------------------------------------------------------|
+ * |       BANK15_MAX_ID         |       BANK15_MIN_ID          |
+ * |------------------------------------------------------------|
+ * Header fields:
+ *  - MSG_TYPE
+ *    Bits 7:0
+ *    Value: 0x6
+ *  - BANKx_BASE_ADDRESS
+ *    Bits 31:0
+ *    Purpose: Provide a mechanism to specify the base address of the MSDU_EXT
+ *         bank physical/bus address.
+ *  - BANKx_MIN_ID
+ *    Bits 15:0
+ *    Purpose: Provide a mechanism to specify the min index that needs to
+ *          mapped.
+ *  - BANKx_MAX_ID
+ *    Bits 31:16
+ *    Purpose: Provide a mechanism to specify the max index that needs to
+ *
+ */
+struct htt_frag_desc_bank_id {
+	__le16 bank_min_id;
+	__le16 bank_max_id;
+} __packed;
+
+/* real is 16 but it wouldn't fit in the max htt message size
+ * so we use a conservatively safe value for now */
+#define HTT_FRAG_DESC_BANK_MAX 4
+
+#define HTT_FRAG_DESC_BANK_CFG_INFO_PDEV_ID_MASK 0x03
+#define HTT_FRAG_DESC_BANK_CFG_INFO_PDEV_ID_LSB  0
+#define HTT_FRAG_DESC_BANK_CFG_INFO_SWAP         (1 << 2)
+
+struct htt_frag_desc_bank_cfg {
+	u8 info; /* HTT_FRAG_DESC_BANK_CFG_INFO_ */
+	u8 num_banks;
+	u8 desc_size;
+	__le32 bank_base_addrs[HTT_FRAG_DESC_BANK_MAX];
+	struct htt_frag_desc_bank_id bank_id[HTT_FRAG_DESC_BANK_MAX];
+} __packed;
+
+union htt_rx_pn_t {
+	/* WEP: 24-bit PN */
+	u32 pn24;
+
+	/* TKIP or CCMP: 48-bit PN */
+	u_int64_t pn48;
+
+	/* WAPI: 128-bit PN */
+	u_int64_t pn128[2];
+};
+
+struct htt_cmd {
+	struct htt_cmd_hdr hdr;
+	union {
+		struct htt_ver_req ver_req;
+		struct htt_mgmt_tx_desc mgmt_tx;
+		struct htt_data_tx_desc data_tx;
+		struct htt_rx_ring_setup rx_setup;
+		struct htt_stats_req stats_req;
+		struct htt_oob_sync_req oob_sync_req;
+		struct htt_aggr_conf aggr_conf;
+		struct htt_frag_desc_bank_cfg frag_desc_bank_cfg;
+	};
+} __packed;
+
+struct htt_resp {
+	struct htt_resp_hdr hdr;
+	union {
+		struct htt_ver_resp ver_resp;
+		struct htt_mgmt_tx_completion mgmt_tx_completion;
+		struct htt_data_tx_completion data_tx_completion;
+		struct htt_rx_indication rx_ind;
+		struct htt_rx_fragment_indication rx_frag_ind;
+		struct htt_rx_peer_map peer_map;
+		struct htt_rx_peer_unmap peer_unmap;
+		struct htt_rx_flush rx_flush;
+		struct htt_rx_addba rx_addba;
+		struct htt_rx_delba rx_delba;
+		struct htt_security_indication security_indication;
+		struct htt_rc_update rc_update;
+		struct htt_rx_test rx_test;
+		struct htt_pktlog_msg pktlog_msg;
+		struct htt_stats_conf stats_conf;
+	};
+} __packed;
+
+
+/*** host side structures follow ***/
+
+struct htt_tx_done {
+	u32 msdu_id;
+	bool discard;
+	bool no_ack;
+};
+
+struct htt_peer_map_event {
+	u8 vdev_id;
+	u16 peer_id;
+	u8 addr[ETH_ALEN];
+};
+
+struct htt_peer_unmap_event {
+	u16 peer_id;
+};
+
+struct htt_rx_info {
+	struct sk_buff *skb;
+	enum htt_rx_mpdu_status status;
+	enum htt_rx_mpdu_encrypt_type encrypt_type;
+	s8 signal;
+	struct {
+		u8 info0;
+		u32 info1;
+		u32 info2;
+	} rate;
+	bool fcs_err;
+};
+
+struct ath10k_htt {
+	struct ath10k *ar;
+	enum ath10k_htc_ep_id eid;
+
+	int max_throughput_mbps;
+	u8 target_version_major;
+	u8 target_version_minor;
+	struct completion target_version_received;
+
+	struct {
+		/*
+		 * Ring of network buffer objects - This ring is
+		 * used exclusively by the host SW. This ring
+		 * mirrors the dev_addrs_ring that is shared
+		 * between the host SW and the MAC HW. The host SW
+		 * uses this netbufs ring to locate the network
+		 * buffer objects whose data buffers the HW has
+		 * filled.
+		 */
+		struct sk_buff **netbufs_ring;
+		/*
+		 * Ring of buffer addresses -
+		 * This ring holds the "physical" device address of the
+		 * rx buffers the host SW provides for the MAC HW to
+		 * fill.
+		 */
+		__le32 *paddrs_ring;
+
+		/*
+		 * Base address of ring, as a "physical" device address
+		 * rather than a CPU address.
+		 */
+		dma_addr_t base_paddr;
+
+		/* how many elems in the ring (power of 2) */
+		int size;
+
+		/* size - 1 */
+		unsigned size_mask;
+
+		/* how many rx buffers to keep in the ring */
+		int fill_level;
+
+		/* how many rx buffers (full+empty) are in the ring */
+		int fill_cnt;
+
+		/*
+		 * alloc_idx - where HTT SW has deposited empty buffers
+		 * This is allocated in consistent mem, so that the FW can
+		 * read this variable, and program the HW's FW_IDX reg with
+		 * the value of this shadow register.
+		 */
+		struct {
+			__le32 *vaddr;
+			dma_addr_t paddr;
+		} alloc_idx;
+
+		/* where HTT SW has processed bufs filled by rx MAC DMA */
+		struct {
+			unsigned msdu_payld;
+		} sw_rd_idx;
+
+		/*
+		 * refill_retry_timer - timer triggered when the ring is
+		 * not refilled to the level expected
+		 */
+		struct timer_list refill_retry_timer;
+
+		/* Protects access to all rx ring buffer state variables */
+		spinlock_t lock;
+	} rx_ring;
+
+	unsigned int prefetch_len;
+
+	/* Protects access to %pending_tx, %used_msdu_ids */
+	spinlock_t tx_lock;
+	int max_num_pending_tx;
+	int num_pending_tx;
+	struct sk_buff **pending_tx;
+	unsigned long *used_msdu_ids; /* bitmap */
+	wait_queue_head_t empty_tx_wq;
+
+	/* set if host-fw communication goes haywire
+	 * used to avoid further failures */
+	bool rx_confused;
+};
+
+#define RX_HTT_HDR_STATUS_LEN 64
+
+/* This structure layout is programmed via rx ring setup
+ * so that FW knows how to transfer the rx descriptor to the host.
+ * Buffers like this are placed on the rx ring. */
+struct htt_rx_desc {
+	union {
+		/* This field is filled on the host using the msdu buffer
+		 * from htt_rx_indication */
+		struct fw_rx_desc_base fw_desc;
+		u32 pad;
+	} __packed;
+	struct {
+		struct rx_attention attention;
+		struct rx_frag_info frag_info;
+		struct rx_mpdu_start mpdu_start;
+		struct rx_msdu_start msdu_start;
+		struct rx_msdu_end msdu_end;
+		struct rx_mpdu_end mpdu_end;
+		struct rx_ppdu_start ppdu_start;
+		struct rx_ppdu_end ppdu_end;
+	} __packed;
+	u8 rx_hdr_status[RX_HTT_HDR_STATUS_LEN];
+	u8 msdu_payload[0];
+};
+
+#define HTT_RX_DESC_ALIGN 8
+
+#define HTT_MAC_ADDR_LEN 6
+
+/*
+ * FIX THIS
+ * Should be: sizeof(struct htt_host_rx_desc) + max rx MSDU size,
+ * rounded up to a cache line size.
+ */
+#define HTT_RX_BUF_SIZE 1920
+#define HTT_RX_MSDU_SIZE (HTT_RX_BUF_SIZE - (int)sizeof(struct htt_rx_desc))
+
+/*
+ * DMA_MAP expects the buffer to be an integral number of cache lines.
+ * Rather than checking the actual cache line size, this code makes a
+ * conservative estimate of what the cache line size could be.
+ */
+#define HTT_LOG2_MAX_CACHE_LINE_SIZE 7	/* 2^7 = 128 */
+#define HTT_MAX_CACHE_LINE_SIZE_MASK ((1 << HTT_LOG2_MAX_CACHE_LINE_SIZE) - 1)
+
+struct ath10k_htt *ath10k_htt_attach(struct ath10k *ar);
+int ath10k_htt_attach_target(struct ath10k_htt *htt);
+void ath10k_htt_detach(struct ath10k_htt *htt);
+
+int ath10k_htt_tx_attach(struct ath10k_htt *htt);
+void ath10k_htt_tx_detach(struct ath10k_htt *htt);
+int ath10k_htt_rx_attach(struct ath10k_htt *htt);
+void ath10k_htt_rx_detach(struct ath10k_htt *htt);
+void ath10k_htt_htc_tx_complete(struct ath10k *ar, struct sk_buff *skb);
+void ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb);
+int ath10k_htt_h2t_ver_req_msg(struct ath10k_htt *htt);
+int ath10k_htt_send_rx_ring_cfg_ll(struct ath10k_htt *htt);
+
+void __ath10k_htt_tx_dec_pending(struct ath10k_htt *htt);
+int ath10k_htt_tx_alloc_msdu_id(struct ath10k_htt *htt);
+void ath10k_htt_tx_free_msdu_id(struct ath10k_htt *htt, u16 msdu_id);
+int ath10k_htt_mgmt_tx(struct ath10k_htt *htt, struct sk_buff *);
+int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *);
+#endif

drivers/net/wireless/ath/ath10k/htt_rx.c

@@ -0,0 +1,1167 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "htc.h"
+#include "htt.h"
+#include "txrx.h"
+#include "debug.h"
+
+#include <linux/log2.h>
+
+/* slightly larger than one large A-MPDU */
+#define HTT_RX_RING_SIZE_MIN 128
+
+/* roughly 20 ms @ 1 Gbps of 1500B MSDUs */
+#define HTT_RX_RING_SIZE_MAX 2048
+
+#define HTT_RX_AVG_FRM_BYTES 1000
+
+/* ms, very conservative */
+#define HTT_RX_HOST_LATENCY_MAX_MS 20
+
+/* ms, conservative */
+#define HTT_RX_HOST_LATENCY_WORST_LIKELY_MS 10
+
+/* when under memory pressure rx ring refill may fail and needs a retry */
+#define HTT_RX_RING_REFILL_RETRY_MS 50
+
+static int ath10k_htt_rx_ring_size(struct ath10k_htt *htt)
+{
+	int size;
+
+	/*
+	 * It is expected that the host CPU will typically be able to
+	 * service the rx indication from one A-MPDU before the rx
+	 * indication from the subsequent A-MPDU happens, roughly 1-2 ms
+	 * later. However, the rx ring should be sized very conservatively,
+	 * to accomodate the worst reasonable delay before the host CPU
+	 * services a rx indication interrupt.
+	 *
+	 * The rx ring need not be kept full of empty buffers. In theory,
+	 * the htt host SW can dynamically track the low-water mark in the
+	 * rx ring, and dynamically adjust the level to which the rx ring
+	 * is filled with empty buffers, to dynamically meet the desired
+	 * low-water mark.
+	 *
+	 * In contrast, it's difficult to resize the rx ring itself, once
+	 * it's in use. Thus, the ring itself should be sized very
+	 * conservatively, while the degree to which the ring is filled
+	 * with empty buffers should be sized moderately conservatively.
+	 */
+
+	/* 1e6 bps/mbps / 1e3 ms per sec = 1000 */
+	size =
+	    htt->max_throughput_mbps +
+	    1000  /
+	    (8 * HTT_RX_AVG_FRM_BYTES) * HTT_RX_HOST_LATENCY_MAX_MS;
+
+	if (size < HTT_RX_RING_SIZE_MIN)
+		size = HTT_RX_RING_SIZE_MIN;
+
+	if (size > HTT_RX_RING_SIZE_MAX)
+		size = HTT_RX_RING_SIZE_MAX;
+
+	size = roundup_pow_of_two(size);
+
+	return size;
+}
+
+static int ath10k_htt_rx_ring_fill_level(struct ath10k_htt *htt)
+{
+	int size;
+
+	/* 1e6 bps/mbps / 1e3 ms per sec = 1000 */
+	size =
+	    htt->max_throughput_mbps *
+	    1000  /
+	    (8 * HTT_RX_AVG_FRM_BYTES) * HTT_RX_HOST_LATENCY_WORST_LIKELY_MS;
+
+	/*
+	 * Make sure the fill level is at least 1 less than the ring size.
+	 * Leaving 1 element empty allows the SW to easily distinguish
+	 * between a full ring vs. an empty ring.
+	 */
+	if (size >= htt->rx_ring.size)
+		size = htt->rx_ring.size - 1;
+
+	return size;
+}
+
+static void ath10k_htt_rx_ring_free(struct ath10k_htt *htt)
+{
+	struct sk_buff *skb;
+	struct ath10k_skb_cb *cb;
+	int i;
+
+	for (i = 0; i < htt->rx_ring.fill_cnt; i++) {
+		skb = htt->rx_ring.netbufs_ring[i];
+		cb = ATH10K_SKB_CB(skb);
+		dma_unmap_single(htt->ar->dev, cb->paddr,
+				 skb->len + skb_tailroom(skb),
+				 DMA_FROM_DEVICE);
+		dev_kfree_skb_any(skb);
+	}
+
+	htt->rx_ring.fill_cnt = 0;
+}
+
+static int __ath10k_htt_rx_ring_fill_n(struct ath10k_htt *htt, int num)
+{
+	struct htt_rx_desc *rx_desc;
+	struct sk_buff *skb;
+	dma_addr_t paddr;
+	int ret = 0, idx;
+
+	idx = __le32_to_cpu(*(htt->rx_ring.alloc_idx.vaddr));
+	while (num > 0) {
+		skb = dev_alloc_skb(HTT_RX_BUF_SIZE + HTT_RX_DESC_ALIGN);
+		if (!skb) {
+			ret = -ENOMEM;
+			goto fail;
+		}
+
+		if (!IS_ALIGNED((unsigned long)skb->data, HTT_RX_DESC_ALIGN))
+			skb_pull(skb,
+				 PTR_ALIGN(skb->data, HTT_RX_DESC_ALIGN) -
+				 skb->data);
+
+		/* Clear rx_desc attention word before posting to Rx ring */
+		rx_desc = (struct htt_rx_desc *)skb->data;
+		rx_desc->attention.flags = __cpu_to_le32(0);
+
+		paddr = dma_map_single(htt->ar->dev, skb->data,
+				       skb->len + skb_tailroom(skb),
+				       DMA_FROM_DEVICE);
+
+		if (unlikely(dma_mapping_error(htt->ar->dev, paddr))) {
+			dev_kfree_skb_any(skb);
+			ret = -ENOMEM;
+			goto fail;
+		}
+
+		ATH10K_SKB_CB(skb)->paddr = paddr;
+		htt->rx_ring.netbufs_ring[idx] = skb;
+		htt->rx_ring.paddrs_ring[idx] = __cpu_to_le32(paddr);
+		htt->rx_ring.fill_cnt++;
+
+		num--;
+		idx++;
+		idx &= htt->rx_ring.size_mask;
+	}
+
+fail:
+	*(htt->rx_ring.alloc_idx.vaddr) = __cpu_to_le32(idx);
+	return ret;
+}
+
+static int ath10k_htt_rx_ring_fill_n(struct ath10k_htt *htt, int num)
+{
+	lockdep_assert_held(&htt->rx_ring.lock);
+	return __ath10k_htt_rx_ring_fill_n(htt, num);
+}
+
+static void ath10k_htt_rx_msdu_buff_replenish(struct ath10k_htt *htt)
+{
+	int ret, num_to_fill;
+
+	spin_lock_bh(&htt->rx_ring.lock);
+	num_to_fill = htt->rx_ring.fill_level - htt->rx_ring.fill_cnt;
+	ret = ath10k_htt_rx_ring_fill_n(htt, num_to_fill);
+	if (ret == -ENOMEM) {
+		/*
+		 * Failed to fill it to the desired level -
+		 * we'll start a timer and try again next time.
+		 * As long as enough buffers are left in the ring for
+		 * another A-MPDU rx, no special recovery is needed.
+		 */
+		mod_timer(&htt->rx_ring.refill_retry_timer, jiffies +
+			  msecs_to_jiffies(HTT_RX_RING_REFILL_RETRY_MS));
+	}
+	spin_unlock_bh(&htt->rx_ring.lock);
+}
+
+static void ath10k_htt_rx_ring_refill_retry(unsigned long arg)
+{
+	struct ath10k_htt *htt = (struct ath10k_htt *)arg;
+	ath10k_htt_rx_msdu_buff_replenish(htt);
+}
+
+static unsigned ath10k_htt_rx_ring_elems(struct ath10k_htt *htt)
+{
+	return (__le32_to_cpu(*htt->rx_ring.alloc_idx.vaddr) -
+		htt->rx_ring.sw_rd_idx.msdu_payld) & htt->rx_ring.size_mask;
+}
+
+void ath10k_htt_rx_detach(struct ath10k_htt *htt)
+{
+	int sw_rd_idx = htt->rx_ring.sw_rd_idx.msdu_payld;
+
+	del_timer_sync(&htt->rx_ring.refill_retry_timer);
+
+	while (sw_rd_idx != __le32_to_cpu(*(htt->rx_ring.alloc_idx.vaddr))) {
+		struct sk_buff *skb =
+				htt->rx_ring.netbufs_ring[sw_rd_idx];
+		struct ath10k_skb_cb *cb = ATH10K_SKB_CB(skb);
+
+		dma_unmap_single(htt->ar->dev, cb->paddr,
+				 skb->len + skb_tailroom(skb),
+				 DMA_FROM_DEVICE);
+		dev_kfree_skb_any(htt->rx_ring.netbufs_ring[sw_rd_idx]);
+		sw_rd_idx++;
+		sw_rd_idx &= htt->rx_ring.size_mask;
+	}
+
+	dma_free_coherent(htt->ar->dev,
+			  (htt->rx_ring.size *
+			   sizeof(htt->rx_ring.paddrs_ring)),
+			  htt->rx_ring.paddrs_ring,
+			  htt->rx_ring.base_paddr);
+
+	dma_free_coherent(htt->ar->dev,
+			  sizeof(*htt->rx_ring.alloc_idx.vaddr),
+			  htt->rx_ring.alloc_idx.vaddr,
+			  htt->rx_ring.alloc_idx.paddr);
+
+	kfree(htt->rx_ring.netbufs_ring);
+}
+
+static inline struct sk_buff *ath10k_htt_rx_netbuf_pop(struct ath10k_htt *htt)
+{
+	int idx;
+	struct sk_buff *msdu;
+
+	spin_lock_bh(&htt->rx_ring.lock);
+
+	if (ath10k_htt_rx_ring_elems(htt) == 0)
+		ath10k_warn("htt rx ring is empty!\n");
+
+	idx = htt->rx_ring.sw_rd_idx.msdu_payld;
+	msdu = htt->rx_ring.netbufs_ring[idx];
+
+	idx++;
+	idx &= htt->rx_ring.size_mask;
+	htt->rx_ring.sw_rd_idx.msdu_payld = idx;
+	htt->rx_ring.fill_cnt--;
+
+	spin_unlock_bh(&htt->rx_ring.lock);
+	return msdu;
+}
+
+static void ath10k_htt_rx_free_msdu_chain(struct sk_buff *skb)
+{
+	struct sk_buff *next;
+
+	while (skb) {
+		next = skb->next;
+		dev_kfree_skb_any(skb);
+		skb = next;
+	}
+}
+
+static int ath10k_htt_rx_amsdu_pop(struct ath10k_htt *htt,
+				   u8 **fw_desc, int *fw_desc_len,
+				   struct sk_buff **head_msdu,
+				   struct sk_buff **tail_msdu)
+{
+	int msdu_len, msdu_chaining = 0;
+	struct sk_buff *msdu;
+	struct htt_rx_desc *rx_desc;
+
+	if (ath10k_htt_rx_ring_elems(htt) == 0)
+		ath10k_warn("htt rx ring is empty!\n");
+
+	if (htt->rx_confused) {
+		ath10k_warn("htt is confused. refusing rx\n");
+		return 0;
+	}
+
+	msdu = *head_msdu = ath10k_htt_rx_netbuf_pop(htt);
+	while (msdu) {
+		int last_msdu, msdu_len_invalid, msdu_chained;
+
+		dma_unmap_single(htt->ar->dev,
+				 ATH10K_SKB_CB(msdu)->paddr,
+				 msdu->len + skb_tailroom(msdu),
+				 DMA_FROM_DEVICE);
+
+		ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "htt rx: ",
+				msdu->data, msdu->len + skb_tailroom(msdu));
+
+		rx_desc = (struct htt_rx_desc *)msdu->data;
+
+		/* FIXME: we must report msdu payload since this is what caller
+		 *        expects now */
+		skb_put(msdu, offsetof(struct htt_rx_desc, msdu_payload));
+		skb_pull(msdu, offsetof(struct htt_rx_desc, msdu_payload));
+
+		/*
+		 * Sanity check - confirm the HW is finished filling in the
+		 * rx data.
+		 * If the HW and SW are working correctly, then it's guaranteed
+		 * that the HW's MAC DMA is done before this point in the SW.
+		 * To prevent the case that we handle a stale Rx descriptor,
+		 * just assert for now until we have a way to recover.
+		 */
+		if (!(__le32_to_cpu(rx_desc->attention.flags)
+				& RX_ATTENTION_FLAGS_MSDU_DONE)) {
+			ath10k_htt_rx_free_msdu_chain(*head_msdu);
+			*head_msdu = NULL;
+			msdu = NULL;
+			ath10k_err("htt rx stopped. cannot recover\n");
+			htt->rx_confused = true;
+			break;
+		}
+
+		/*
+		 * Copy the FW rx descriptor for this MSDU from the rx
+		 * indication message into the MSDU's netbuf. HL uses the
+		 * same rx indication message definition as LL, and simply
+		 * appends new info (fields from the HW rx desc, and the
+		 * MSDU payload itself). So, the offset into the rx
+		 * indication message only has to account for the standard
+		 * offset of the per-MSDU FW rx desc info within the
+		 * message, and how many bytes of the per-MSDU FW rx desc
+		 * info have already been consumed. (And the endianness of
+		 * the host, since for a big-endian host, the rx ind
+		 * message contents, including the per-MSDU rx desc bytes,
+		 * were byteswapped during upload.)
+		 */
+		if (*fw_desc_len > 0) {
+			rx_desc->fw_desc.info0 = **fw_desc;
+			/*
+			 * The target is expected to only provide the basic
+			 * per-MSDU rx descriptors. Just to be sure, verify
+			 * that the target has not attached extension data
+			 * (e.g. LRO flow ID).
+			 */
+
+			/* or more, if there's extension data */
+			(*fw_desc)++;
+			(*fw_desc_len)--;
+		} else {
+			/*
+			 * When an oversized AMSDU happened, FW will lost
+			 * some of MSDU status - in this case, the FW
+			 * descriptors provided will be less than the
+			 * actual MSDUs inside this MPDU. Mark the FW
+			 * descriptors so that it will still deliver to
+			 * upper stack, if no CRC error for this MPDU.
+			 *
+			 * FIX THIS - the FW descriptors are actually for
+			 * MSDUs in the end of this A-MSDU instead of the
+			 * beginning.
+			 */
+			rx_desc->fw_desc.info0 = 0;
+		}
+
+		msdu_len_invalid = !!(__le32_to_cpu(rx_desc->attention.flags)
+					& (RX_ATTENTION_FLAGS_MPDU_LENGTH_ERR |
+					   RX_ATTENTION_FLAGS_MSDU_LENGTH_ERR));
+		msdu_len = MS(__le32_to_cpu(rx_desc->msdu_start.info0),
+			      RX_MSDU_START_INFO0_MSDU_LENGTH);
+		msdu_chained = rx_desc->frag_info.ring2_more_count;
+
+		if (msdu_len_invalid)
+			msdu_len = 0;
+
+		skb_trim(msdu, 0);
+		skb_put(msdu, min(msdu_len, HTT_RX_MSDU_SIZE));
+		msdu_len -= msdu->len;
+
+		/* FIXME: Do chained buffers include htt_rx_desc or not? */
+		while (msdu_chained--) {
+			struct sk_buff *next = ath10k_htt_rx_netbuf_pop(htt);
+
+			dma_unmap_single(htt->ar->dev,
+					 ATH10K_SKB_CB(next)->paddr,
+					 next->len + skb_tailroom(next),
+					 DMA_FROM_DEVICE);
+
+			ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "htt rx: ",
+					next->data,
+					next->len + skb_tailroom(next));
+
+			skb_trim(next, 0);
+			skb_put(next, min(msdu_len, HTT_RX_BUF_SIZE));
+			msdu_len -= next->len;
+
+			msdu->next = next;
+			msdu = next;
+			msdu_chaining = 1;
+		}
+
+		if (msdu_len > 0) {
+			/* This may suggest FW bug? */
+			ath10k_warn("htt rx msdu len not consumed (%d)\n",
+				    msdu_len);
+		}
+
+		last_msdu = __le32_to_cpu(rx_desc->msdu_end.info0) &
+				RX_MSDU_END_INFO0_LAST_MSDU;
+
+		if (last_msdu) {
+			msdu->next = NULL;
+			break;
+		} else {
+			struct sk_buff *next = ath10k_htt_rx_netbuf_pop(htt);
+			msdu->next = next;
+			msdu = next;
+		}
+	}
+	*tail_msdu = msdu;
+
+	/*
+	 * Don't refill the ring yet.
+	 *
+	 * First, the elements popped here are still in use - it is not
+	 * safe to overwrite them until the matching call to
+	 * mpdu_desc_list_next. Second, for efficiency it is preferable to
+	 * refill the rx ring with 1 PPDU's worth of rx buffers (something
+	 * like 32 x 3 buffers), rather than one MPDU's worth of rx buffers
+	 * (something like 3 buffers). Consequently, we'll rely on the txrx
+	 * SW to tell us when it is done pulling all the PPDU's rx buffers
+	 * out of the rx ring, and then refill it just once.
+	 */
+
+	return msdu_chaining;
+}
+
+int ath10k_htt_rx_attach(struct ath10k_htt *htt)
+{
+	dma_addr_t paddr;
+	void *vaddr;
+	struct timer_list *timer = &htt->rx_ring.refill_retry_timer;
+
+	htt->rx_ring.size = ath10k_htt_rx_ring_size(htt);
+	if (!is_power_of_2(htt->rx_ring.size)) {
+		ath10k_warn("htt rx ring size is not power of 2\n");
+		return -EINVAL;
+	}
+
+	htt->rx_ring.size_mask = htt->rx_ring.size - 1;
+
+	/*
+	 * Set the initial value for the level to which the rx ring
+	 * should be filled, based on the max throughput and the
+	 * worst likely latency for the host to fill the rx ring
+	 * with new buffers. In theory, this fill level can be
+	 * dynamically adjusted from the initial value set here, to
+	 * reflect the actual host latency rather than a
+	 * conservative assumption about the host latency.
+	 */
+	htt->rx_ring.fill_level = ath10k_htt_rx_ring_fill_level(htt);
+
+	htt->rx_ring.netbufs_ring =
+		kmalloc(htt->rx_ring.size * sizeof(struct sk_buff *),
+			GFP_KERNEL);
+	if (!htt->rx_ring.netbufs_ring)
+		goto err_netbuf;
+
+	vaddr = dma_alloc_coherent(htt->ar->dev,
+		   (htt->rx_ring.size * sizeof(htt->rx_ring.paddrs_ring)),
+		   &paddr, GFP_DMA);
+	if (!vaddr)
+		goto err_dma_ring;
+
+	htt->rx_ring.paddrs_ring = vaddr;
+	htt->rx_ring.base_paddr = paddr;
+
+	vaddr = dma_alloc_coherent(htt->ar->dev,
+				   sizeof(*htt->rx_ring.alloc_idx.vaddr),
+				   &paddr, GFP_DMA);
+	if (!vaddr)
+		goto err_dma_idx;
+
+	htt->rx_ring.alloc_idx.vaddr = vaddr;
+	htt->rx_ring.alloc_idx.paddr = paddr;
+	htt->rx_ring.sw_rd_idx.msdu_payld = 0;
+	*htt->rx_ring.alloc_idx.vaddr = 0;
+
+	/* Initialize the Rx refill retry timer */
+	setup_timer(timer, ath10k_htt_rx_ring_refill_retry, (unsigned long)htt);
+
+	spin_lock_init(&htt->rx_ring.lock);
+
+	htt->rx_ring.fill_cnt = 0;
+	if (__ath10k_htt_rx_ring_fill_n(htt, htt->rx_ring.fill_level))
+		goto err_fill_ring;
+
+	ath10k_dbg(ATH10K_DBG_HTT, "HTT RX ring size: %d, fill_level: %d\n",
+		   htt->rx_ring.size, htt->rx_ring.fill_level);
+	return 0;
+
+err_fill_ring:
+	ath10k_htt_rx_ring_free(htt);
+	dma_free_coherent(htt->ar->dev,
+			  sizeof(*htt->rx_ring.alloc_idx.vaddr),
+			  htt->rx_ring.alloc_idx.vaddr,
+			  htt->rx_ring.alloc_idx.paddr);
+err_dma_idx:
+	dma_free_coherent(htt->ar->dev,
+			  (htt->rx_ring.size *
+			   sizeof(htt->rx_ring.paddrs_ring)),
+			  htt->rx_ring.paddrs_ring,
+			  htt->rx_ring.base_paddr);
+err_dma_ring:
+	kfree(htt->rx_ring.netbufs_ring);
+err_netbuf:
+	return -ENOMEM;
+}
+
+static int ath10k_htt_rx_crypto_param_len(enum htt_rx_mpdu_encrypt_type type)
+{
+	switch (type) {
+	case HTT_RX_MPDU_ENCRYPT_WEP40:
+	case HTT_RX_MPDU_ENCRYPT_WEP104:
+		return 4;
+	case HTT_RX_MPDU_ENCRYPT_TKIP_WITHOUT_MIC:
+	case HTT_RX_MPDU_ENCRYPT_WEP128: /* not tested */
+	case HTT_RX_MPDU_ENCRYPT_TKIP_WPA:
+	case HTT_RX_MPDU_ENCRYPT_WAPI: /* not tested */
+	case HTT_RX_MPDU_ENCRYPT_AES_CCM_WPA2:
+		return 8;
+	case HTT_RX_MPDU_ENCRYPT_NONE:
+		return 0;
+	}
+
+	ath10k_warn("unknown encryption type %d\n", type);
+	return 0;
+}
+
+static int ath10k_htt_rx_crypto_tail_len(enum htt_rx_mpdu_encrypt_type type)
+{
+	switch (type) {
+	case HTT_RX_MPDU_ENCRYPT_NONE:
+	case HTT_RX_MPDU_ENCRYPT_WEP40:
+	case HTT_RX_MPDU_ENCRYPT_WEP104:
+	case HTT_RX_MPDU_ENCRYPT_WEP128:
+	case HTT_RX_MPDU_ENCRYPT_WAPI:
+		return 0;
+	case HTT_RX_MPDU_ENCRYPT_TKIP_WITHOUT_MIC:
+	case HTT_RX_MPDU_ENCRYPT_TKIP_WPA:
+		return 4;
+	case HTT_RX_MPDU_ENCRYPT_AES_CCM_WPA2:
+		return 8;
+	}
+
+	ath10k_warn("unknown encryption type %d\n", type);
+	return 0;
+}
+
+/* Applies for first msdu in chain, before altering it. */
+static struct ieee80211_hdr *ath10k_htt_rx_skb_get_hdr(struct sk_buff *skb)
+{
+	struct htt_rx_desc *rxd;
+	enum rx_msdu_decap_format fmt;
+
+	rxd = (void *)skb->data - sizeof(*rxd);
+	fmt = MS(__le32_to_cpu(rxd->msdu_start.info1),
+			RX_MSDU_START_INFO1_DECAP_FORMAT);
+
+	if (fmt == RX_MSDU_DECAP_RAW)
+		return (void *)skb->data;
+	else
+		return (void *)skb->data - RX_HTT_HDR_STATUS_LEN;
+}
+
+/* This function only applies for first msdu in an msdu chain */
+static bool ath10k_htt_rx_hdr_is_amsdu(struct ieee80211_hdr *hdr)
+{
+	if (ieee80211_is_data_qos(hdr->frame_control)) {
+		u8 *qc = ieee80211_get_qos_ctl(hdr);
+		if (qc[0] & 0x80)
+			return true;
+	}
+	return false;
+}
+
+static int ath10k_htt_rx_amsdu(struct ath10k_htt *htt,
+			struct htt_rx_info *info)
+{
+	struct htt_rx_desc *rxd;
+	struct sk_buff *amsdu;
+	struct sk_buff *first;
+	struct ieee80211_hdr *hdr;
+	struct sk_buff *skb = info->skb;
+	enum rx_msdu_decap_format fmt;
+	enum htt_rx_mpdu_encrypt_type enctype;
+	unsigned int hdr_len;
+	int crypto_len;
+
+	rxd = (void *)skb->data - sizeof(*rxd);
+	fmt = MS(__le32_to_cpu(rxd->msdu_start.info1),
+			RX_MSDU_START_INFO1_DECAP_FORMAT);
+	enctype = MS(__le32_to_cpu(rxd->mpdu_start.info0),
+			RX_MPDU_START_INFO0_ENCRYPT_TYPE);
+
+	/* FIXME: No idea what assumptions are safe here. Need logs */
+	if ((fmt == RX_MSDU_DECAP_RAW && skb->next) ||
+	    (fmt == RX_MSDU_DECAP_8023_SNAP_LLC)) {
+		ath10k_htt_rx_free_msdu_chain(skb->next);
+		skb->next = NULL;
+		return -ENOTSUPP;
+	}
+
+	/* A-MSDU max is a little less than 8K */
+	amsdu = dev_alloc_skb(8*1024);
+	if (!amsdu) {
+		ath10k_warn("A-MSDU allocation failed\n");
+		ath10k_htt_rx_free_msdu_chain(skb->next);
+		skb->next = NULL;
+		return -ENOMEM;
+	}
+
+	if (fmt >= RX_MSDU_DECAP_NATIVE_WIFI) {
+		int hdrlen;
+
+		hdr = (void *)rxd->rx_hdr_status;
+		hdrlen = ieee80211_hdrlen(hdr->frame_control);
+		memcpy(skb_put(amsdu, hdrlen), hdr, hdrlen);
+	}
+
+	first = skb;
+	while (skb) {
+		void *decap_hdr;
+		int decap_len = 0;
+
+		rxd = (void *)skb->data - sizeof(*rxd);
+		fmt = MS(__le32_to_cpu(rxd->msdu_start.info1),
+				RX_MSDU_START_INFO1_DECAP_FORMAT);
+		decap_hdr = (void *)rxd->rx_hdr_status;
+
+		if (skb == first) {
+			/* We receive linked A-MSDU subframe skbuffs. The
+			 * first one contains the original 802.11 header (and
+			 * possible crypto param) in the RX descriptor. The
+			 * A-MSDU subframe header follows that. Each part is
+			 * aligned to 4 byte boundary. */
+
+			hdr = (void *)amsdu->data;
+			hdr_len = ieee80211_hdrlen(hdr->frame_control);
+			crypto_len = ath10k_htt_rx_crypto_param_len(enctype);
+
+			decap_hdr += roundup(hdr_len, 4);
+			decap_hdr += roundup(crypto_len, 4);
+		}
+
+		if (fmt == RX_MSDU_DECAP_ETHERNET2_DIX) {
+			/* Ethernet2 decap inserts ethernet header in place of
+			 * A-MSDU subframe header. */
+			skb_pull(skb, 6 + 6 + 2);
+
+			/* A-MSDU subframe header length */
+			decap_len += 6 + 6 + 2;
+
+			/* Ethernet2 decap also strips the LLC/SNAP so we need
+			 * to re-insert it. The LLC/SNAP follows A-MSDU
+			 * subframe header. */
+			/* FIXME: Not all LLCs are 8 bytes long */
+			decap_len += 8;
+
+			memcpy(skb_put(amsdu, decap_len), decap_hdr, decap_len);
+		}
+
+		if (fmt == RX_MSDU_DECAP_NATIVE_WIFI) {
+			/* Native Wifi decap inserts regular 802.11 header
+			 * in place of A-MSDU subframe header. */
+			hdr = (struct ieee80211_hdr *)skb->data;
+			skb_pull(skb, ieee80211_hdrlen(hdr->frame_control));
+
+			/* A-MSDU subframe header length */
+			decap_len += 6 + 6 + 2;
+
+			memcpy(skb_put(amsdu, decap_len), decap_hdr, decap_len);
+		}
+
+		if (fmt == RX_MSDU_DECAP_RAW)
+			skb_trim(skb, skb->len - 4); /* remove FCS */
+
+		memcpy(skb_put(amsdu, skb->len), skb->data, skb->len);
+
+		/* A-MSDU subframes are padded to 4bytes
+		 * but relative to first subframe, not the whole MPDU */
+		if (skb->next && ((decap_len + skb->len) & 3)) {
+			int padlen = 4 - ((decap_len + skb->len) & 3);
+			memset(skb_put(amsdu, padlen), 0, padlen);
+		}
+
+		skb = skb->next;
+	}
+
+	info->skb = amsdu;
+	info->encrypt_type = enctype;
+
+	ath10k_htt_rx_free_msdu_chain(first);
+
+	return 0;
+}
+
+static int ath10k_htt_rx_msdu(struct ath10k_htt *htt, struct htt_rx_info *info)
+{
+	struct sk_buff *skb = info->skb;
+	struct htt_rx_desc *rxd;
+	struct ieee80211_hdr *hdr;
+	enum rx_msdu_decap_format fmt;
+	enum htt_rx_mpdu_encrypt_type enctype;
+
+	/* This shouldn't happen. If it does than it may be a FW bug. */
+	if (skb->next) {
+		ath10k_warn("received chained non A-MSDU frame\n");
+		ath10k_htt_rx_free_msdu_chain(skb->next);
+		skb->next = NULL;
+	}
+
+	rxd = (void *)skb->data - sizeof(*rxd);
+	fmt = MS(__le32_to_cpu(rxd->msdu_start.info1),
+			RX_MSDU_START_INFO1_DECAP_FORMAT);
+	enctype = MS(__le32_to_cpu(rxd->mpdu_start.info0),
+			RX_MPDU_START_INFO0_ENCRYPT_TYPE);
+	hdr = (void *)skb->data - RX_HTT_HDR_STATUS_LEN;
+
+	switch (fmt) {
+	case RX_MSDU_DECAP_RAW:
+		/* remove trailing FCS */
+		skb_trim(skb, skb->len - 4);
+		break;
+	case RX_MSDU_DECAP_NATIVE_WIFI:
+		/* nothing to do here */
+		break;
+	case RX_MSDU_DECAP_ETHERNET2_DIX:
+		/* macaddr[6] + macaddr[6] + ethertype[2] */
+		skb_pull(skb, 6 + 6 + 2);
+		break;
+	case RX_MSDU_DECAP_8023_SNAP_LLC:
+		/* macaddr[6] + macaddr[6] + len[2] */
+		/* we don't need this for non-A-MSDU */
+		skb_pull(skb, 6 + 6 + 2);
+		break;
+	}
+
+	if (fmt == RX_MSDU_DECAP_ETHERNET2_DIX) {
+		void *llc;
+		int llclen;
+
+		llclen = 8;
+		llc  = hdr;
+		llc += roundup(ieee80211_hdrlen(hdr->frame_control), 4);
+		llc += roundup(ath10k_htt_rx_crypto_param_len(enctype), 4);
+
+		skb_push(skb, llclen);
+		memcpy(skb->data, llc, llclen);
+	}
+
+	if (fmt >= RX_MSDU_DECAP_ETHERNET2_DIX) {
+		int len = ieee80211_hdrlen(hdr->frame_control);
+		skb_push(skb, len);
+		memcpy(skb->data, hdr, len);
+	}
+
+	info->skb = skb;
+	info->encrypt_type = enctype;
+	return 0;
+}
+
+static bool ath10k_htt_rx_has_decrypt_err(struct sk_buff *skb)
+{
+	struct htt_rx_desc *rxd;
+	u32 flags;
+
+	rxd = (void *)skb->data - sizeof(*rxd);
+	flags = __le32_to_cpu(rxd->attention.flags);
+
+	if (flags & RX_ATTENTION_FLAGS_DECRYPT_ERR)
+		return true;
+
+	return false;
+}
+
+static bool ath10k_htt_rx_has_fcs_err(struct sk_buff *skb)
+{
+	struct htt_rx_desc *rxd;
+	u32 flags;
+
+	rxd = (void *)skb->data - sizeof(*rxd);
+	flags = __le32_to_cpu(rxd->attention.flags);
+
+	if (flags & RX_ATTENTION_FLAGS_FCS_ERR)
+		return true;
+
+	return false;
+}
+
+static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
+				  struct htt_rx_indication *rx)
+{
+	struct htt_rx_info info;
+	struct htt_rx_indication_mpdu_range *mpdu_ranges;
+	struct ieee80211_hdr *hdr;
+	int num_mpdu_ranges;
+	int fw_desc_len;
+	u8 *fw_desc;
+	int i, j;
+	int ret;
+
+	memset(&info, 0, sizeof(info));
+
+	fw_desc_len = __le16_to_cpu(rx->prefix.fw_rx_desc_bytes);
+	fw_desc = (u8 *)&rx->fw_desc;
+
+	num_mpdu_ranges = MS(__le32_to_cpu(rx->hdr.info1),
+			     HTT_RX_INDICATION_INFO1_NUM_MPDU_RANGES);
+	mpdu_ranges = htt_rx_ind_get_mpdu_ranges(rx);
+
+	ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "htt rx ind: ",
+			rx, sizeof(*rx) +
+			(sizeof(struct htt_rx_indication_mpdu_range) *
+				num_mpdu_ranges));
+
+	for (i = 0; i < num_mpdu_ranges; i++) {
+		info.status = mpdu_ranges[i].mpdu_range_status;
+
+		for (j = 0; j < mpdu_ranges[i].mpdu_count; j++) {
+			struct sk_buff *msdu_head, *msdu_tail;
+			enum htt_rx_mpdu_status status;
+			int msdu_chaining;
+
+			msdu_head = NULL;
+			msdu_tail = NULL;
+			msdu_chaining = ath10k_htt_rx_amsdu_pop(htt,
+							 &fw_desc,
+							 &fw_desc_len,
+							 &msdu_head,
+							 &msdu_tail);
+
+			if (!msdu_head) {
+				ath10k_warn("htt rx no data!\n");
+				continue;
+			}
+
+			if (msdu_head->len == 0) {
+				ath10k_dbg(ATH10K_DBG_HTT,
+					   "htt rx dropping due to zero-len\n");
+				ath10k_htt_rx_free_msdu_chain(msdu_head);
+				continue;
+			}
+
+			if (ath10k_htt_rx_has_decrypt_err(msdu_head)) {
+				ath10k_htt_rx_free_msdu_chain(msdu_head);
+				continue;
+			}
+
+			status = info.status;
+
+			/* Skip mgmt frames while we handle this in WMI */
+			if (status == HTT_RX_IND_MPDU_STATUS_MGMT_CTRL) {
+				ath10k_htt_rx_free_msdu_chain(msdu_head);
+				continue;
+			}
+
+			if (status != HTT_RX_IND_MPDU_STATUS_OK &&
+			    status != HTT_RX_IND_MPDU_STATUS_TKIP_MIC_ERR &&
+			    !htt->ar->monitor_enabled) {
+				ath10k_dbg(ATH10K_DBG_HTT,
+					   "htt rx ignoring frame w/ status %d\n",
+					   status);
+				ath10k_htt_rx_free_msdu_chain(msdu_head);
+				continue;
+			}
+
+			/* FIXME: we do not support chaining yet.
+			 * this needs investigation */
+			if (msdu_chaining) {
+				ath10k_warn("msdu_chaining is true\n");
+				ath10k_htt_rx_free_msdu_chain(msdu_head);
+				continue;
+			}
+
+			info.skb     = msdu_head;
+			info.fcs_err = ath10k_htt_rx_has_fcs_err(msdu_head);
+			info.signal  = ATH10K_DEFAULT_NOISE_FLOOR;
+			info.signal += rx->ppdu.combined_rssi;
+
+			info.rate.info0 = rx->ppdu.info0;
+			info.rate.info1 = __le32_to_cpu(rx->ppdu.info1);
+			info.rate.info2 = __le32_to_cpu(rx->ppdu.info2);
+
+			hdr = ath10k_htt_rx_skb_get_hdr(msdu_head);
+
+			if (ath10k_htt_rx_hdr_is_amsdu(hdr))
+				ret = ath10k_htt_rx_amsdu(htt, &info);
+			else
+				ret = ath10k_htt_rx_msdu(htt, &info);
+
+			if (ret && !info.fcs_err) {
+				ath10k_warn("error processing msdus %d\n", ret);
+				dev_kfree_skb_any(info.skb);
+				continue;
+			}
+
+			if (ath10k_htt_rx_hdr_is_amsdu((void *)info.skb->data))
+				ath10k_dbg(ATH10K_DBG_HTT, "htt mpdu is amsdu\n");
+
+			ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "htt mpdu: ",
+					info.skb->data, info.skb->len);
+			ath10k_process_rx(htt->ar, &info);
+		}
+	}
+
+	ath10k_htt_rx_msdu_buff_replenish(htt);
+}
+
+static void ath10k_htt_rx_frag_handler(struct ath10k_htt *htt,
+				struct htt_rx_fragment_indication *frag)
+{
+	struct sk_buff *msdu_head, *msdu_tail;
+	struct htt_rx_desc *rxd;
+	enum rx_msdu_decap_format fmt;
+	struct htt_rx_info info = {};
+	struct ieee80211_hdr *hdr;
+	int msdu_chaining;
+	bool tkip_mic_err;
+	bool decrypt_err;
+	u8 *fw_desc;
+	int fw_desc_len, hdrlen, paramlen;
+	int trim;
+
+	fw_desc_len = __le16_to_cpu(frag->fw_rx_desc_bytes);
+	fw_desc = (u8 *)frag->fw_msdu_rx_desc;
+
+	msdu_head = NULL;
+	msdu_tail = NULL;
+	msdu_chaining = ath10k_htt_rx_amsdu_pop(htt, &fw_desc, &fw_desc_len,
+						&msdu_head, &msdu_tail);
+
+	ath10k_dbg(ATH10K_DBG_HTT_DUMP, "htt rx frag ahead\n");
+
+	if (!msdu_head) {
+		ath10k_warn("htt rx frag no data\n");
+		return;
+	}
+
+	if (msdu_chaining || msdu_head != msdu_tail) {
+		ath10k_warn("aggregation with fragmentation?!\n");
+		ath10k_htt_rx_free_msdu_chain(msdu_head);
+		return;
+	}
+
+	/* FIXME: implement signal strength */
+
+	hdr = (struct ieee80211_hdr *)msdu_head->data;
+	rxd = (void *)msdu_head->data - sizeof(*rxd);
+	tkip_mic_err = !!(__le32_to_cpu(rxd->attention.flags) &
+				RX_ATTENTION_FLAGS_TKIP_MIC_ERR);
+	decrypt_err = !!(__le32_to_cpu(rxd->attention.flags) &
+				RX_ATTENTION_FLAGS_DECRYPT_ERR);
+	fmt = MS(__le32_to_cpu(rxd->msdu_start.info1),
+			RX_MSDU_START_INFO1_DECAP_FORMAT);
+
+	if (fmt != RX_MSDU_DECAP_RAW) {
+		ath10k_warn("we dont support non-raw fragmented rx yet\n");
+		dev_kfree_skb_any(msdu_head);
+		goto end;
+	}
+
+	info.skb = msdu_head;
+	info.status = HTT_RX_IND_MPDU_STATUS_OK;
+	info.encrypt_type = MS(__le32_to_cpu(rxd->mpdu_start.info0),
+				RX_MPDU_START_INFO0_ENCRYPT_TYPE);
+
+	if (tkip_mic_err) {
+		ath10k_warn("tkip mic error\n");
+		info.status = HTT_RX_IND_MPDU_STATUS_TKIP_MIC_ERR;
+	}
+
+	if (decrypt_err) {
+		ath10k_warn("decryption err in fragmented rx\n");
+		dev_kfree_skb_any(info.skb);
+		goto end;
+	}
+
+	if (info.encrypt_type != HTT_RX_MPDU_ENCRYPT_NONE) {
+		hdrlen = ieee80211_hdrlen(hdr->frame_control);
+		paramlen = ath10k_htt_rx_crypto_param_len(info.encrypt_type);
+
+		/* It is more efficient to move the header than the payload */
+		memmove((void *)info.skb->data + paramlen,
+			(void *)info.skb->data,
+			hdrlen);
+		skb_pull(info.skb, paramlen);
+		hdr = (struct ieee80211_hdr *)info.skb->data;
+	}
+
+	/* remove trailing FCS */
+	trim  = 4;
+
+	/* remove crypto trailer */
+	trim += ath10k_htt_rx_crypto_tail_len(info.encrypt_type);
+
+	/* last fragment of TKIP frags has MIC */
+	if (!ieee80211_has_morefrags(hdr->frame_control) &&
+	    info.encrypt_type == HTT_RX_MPDU_ENCRYPT_TKIP_WPA)
+		trim += 8;
+
+	if (trim > info.skb->len) {
+		ath10k_warn("htt rx fragment: trailer longer than the frame itself? drop\n");
+		dev_kfree_skb_any(info.skb);
+		goto end;
+	}
+
+	skb_trim(info.skb, info.skb->len - trim);
+
+	ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "htt frag mpdu: ",
+			info.skb->data, info.skb->len);
+	ath10k_process_rx(htt->ar, &info);
+
+end:
+	if (fw_desc_len > 0) {
+		ath10k_dbg(ATH10K_DBG_HTT,
+			   "expecting more fragmented rx in one indication %d\n",
+			   fw_desc_len);
+	}
+}
+
+void ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb)
+{
+	struct ath10k_htt *htt = ar->htt;
+	struct htt_resp *resp = (struct htt_resp *)skb->data;
+
+	/* confirm alignment */
+	if (!IS_ALIGNED((unsigned long)skb->data, 4))
+		ath10k_warn("unaligned htt message, expect trouble\n");
+
+	ath10k_dbg(ATH10K_DBG_HTT, "HTT RX, msg_type: 0x%0X\n",
+		   resp->hdr.msg_type);
+	switch (resp->hdr.msg_type) {
+	case HTT_T2H_MSG_TYPE_VERSION_CONF: {
+		htt->target_version_major = resp->ver_resp.major;
+		htt->target_version_minor = resp->ver_resp.minor;
+		complete(&htt->target_version_received);
+		break;
+	}
+	case HTT_T2H_MSG_TYPE_RX_IND: {
+		ath10k_htt_rx_handler(htt, &resp->rx_ind);
+		break;
+	}
+	case HTT_T2H_MSG_TYPE_PEER_MAP: {
+		struct htt_peer_map_event ev = {
+			.vdev_id = resp->peer_map.vdev_id,
+			.peer_id = __le16_to_cpu(resp->peer_map.peer_id),
+		};
+		memcpy(ev.addr, resp->peer_map.addr, sizeof(ev.addr));
+		ath10k_peer_map_event(htt, &ev);
+		break;
+	}
+	case HTT_T2H_MSG_TYPE_PEER_UNMAP: {
+		struct htt_peer_unmap_event ev = {
+			.peer_id = __le16_to_cpu(resp->peer_unmap.peer_id),
+		};
+		ath10k_peer_unmap_event(htt, &ev);
+		break;
+	}
+	case HTT_T2H_MSG_TYPE_MGMT_TX_COMPLETION: {
+		struct htt_tx_done tx_done = {};
+		int status = __le32_to_cpu(resp->mgmt_tx_completion.status);
+
+		tx_done.msdu_id =
+			__le32_to_cpu(resp->mgmt_tx_completion.desc_id);
+
+		switch (status) {
+		case HTT_MGMT_TX_STATUS_OK:
+			break;
+		case HTT_MGMT_TX_STATUS_RETRY:
+			tx_done.no_ack = true;
+			break;
+		case HTT_MGMT_TX_STATUS_DROP:
+			tx_done.discard = true;
+			break;
+		}
+
+		ath10k_txrx_tx_completed(htt, &tx_done);
+		break;
+	}
+	case HTT_T2H_MSG_TYPE_TX_COMPL_IND: {
+		struct htt_tx_done tx_done = {};
+		int status = MS(resp->data_tx_completion.flags,
+				HTT_DATA_TX_STATUS);
+		__le16 msdu_id;
+		int i;
+
+		switch (status) {
+		case HTT_DATA_TX_STATUS_NO_ACK:
+			tx_done.no_ack = true;
+			break;
+		case HTT_DATA_TX_STATUS_OK:
+			break;
+		case HTT_DATA_TX_STATUS_DISCARD:
+		case HTT_DATA_TX_STATUS_POSTPONE:
+		case HTT_DATA_TX_STATUS_DOWNLOAD_FAIL:
+			tx_done.discard = true;
+			break;
+		default:
+			ath10k_warn("unhandled tx completion status %d\n",
+				    status);
+			tx_done.discard = true;
+			break;
+		}
+
+		ath10k_dbg(ATH10K_DBG_HTT, "htt tx completion num_msdus %d\n",
+			   resp->data_tx_completion.num_msdus);
+
+		for (i = 0; i < resp->data_tx_completion.num_msdus; i++) {
+			msdu_id = resp->data_tx_completion.msdus[i];
+			tx_done.msdu_id = __le16_to_cpu(msdu_id);
+			ath10k_txrx_tx_completed(htt, &tx_done);
+		}
+		break;
+	}
+	case HTT_T2H_MSG_TYPE_SEC_IND: {
+		struct ath10k *ar = htt->ar;
+		struct htt_security_indication *ev = &resp->security_indication;
+
+		ath10k_dbg(ATH10K_DBG_HTT,
+			   "sec ind peer_id %d unicast %d type %d\n",
+			  __le16_to_cpu(ev->peer_id),
+			  !!(ev->flags & HTT_SECURITY_IS_UNICAST),
+			  MS(ev->flags, HTT_SECURITY_TYPE));
+		complete(&ar->install_key_done);
+		break;
+	}
+	case HTT_T2H_MSG_TYPE_RX_FRAG_IND: {
+		ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "htt event: ",
+				skb->data, skb->len);
+		ath10k_htt_rx_frag_handler(htt, &resp->rx_frag_ind);
+		break;
+	}
+	case HTT_T2H_MSG_TYPE_TEST:
+		/* FIX THIS */
+		break;
+	case HTT_T2H_MSG_TYPE_TX_INSPECT_IND:
+	case HTT_T2H_MSG_TYPE_STATS_CONF:
+	case HTT_T2H_MSG_TYPE_RX_ADDBA:
+	case HTT_T2H_MSG_TYPE_RX_DELBA:
+	case HTT_T2H_MSG_TYPE_RX_FLUSH:
+	default:
+		ath10k_dbg(ATH10K_DBG_HTT, "htt event (%d) not handled\n",
+			   resp->hdr.msg_type);
+		ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "htt event: ",
+				skb->data, skb->len);
+		break;
+	};
+
+	/* Free the indication buffer */
+	dev_kfree_skb_any(skb);
+}

drivers/net/wireless/ath/ath10k/htt_tx.c

@@ -0,0 +1,510 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/etherdevice.h>
+#include "htt.h"
+#include "mac.h"
+#include "hif.h"
+#include "txrx.h"
+#include "debug.h"
+
+void __ath10k_htt_tx_dec_pending(struct ath10k_htt *htt)
+{
+	htt->num_pending_tx--;
+	if (htt->num_pending_tx == htt->max_num_pending_tx - 1)
+		ieee80211_wake_queues(htt->ar->hw);
+}
+
+static void ath10k_htt_tx_dec_pending(struct ath10k_htt *htt)
+{
+	spin_lock_bh(&htt->tx_lock);
+	__ath10k_htt_tx_dec_pending(htt);
+	spin_unlock_bh(&htt->tx_lock);
+}
+
+static int ath10k_htt_tx_inc_pending(struct ath10k_htt *htt)
+{
+	int ret = 0;
+
+	spin_lock_bh(&htt->tx_lock);
+
+	if (htt->num_pending_tx >= htt->max_num_pending_tx) {
+		ret = -EBUSY;
+		goto exit;
+	}
+
+	htt->num_pending_tx++;
+	if (htt->num_pending_tx == htt->max_num_pending_tx)
+		ieee80211_stop_queues(htt->ar->hw);
+
+exit:
+	spin_unlock_bh(&htt->tx_lock);
+	return ret;
+}
+
+int ath10k_htt_tx_alloc_msdu_id(struct ath10k_htt *htt)
+{
+	int msdu_id;
+
+	lockdep_assert_held(&htt->tx_lock);
+
+	msdu_id = find_first_zero_bit(htt->used_msdu_ids,
+				      htt->max_num_pending_tx);
+	if (msdu_id == htt->max_num_pending_tx)
+		return -ENOBUFS;
+
+	ath10k_dbg(ATH10K_DBG_HTT, "htt tx alloc msdu_id %d\n", msdu_id);
+	__set_bit(msdu_id, htt->used_msdu_ids);
+	return msdu_id;
+}
+
+void ath10k_htt_tx_free_msdu_id(struct ath10k_htt *htt, u16 msdu_id)
+{
+	lockdep_assert_held(&htt->tx_lock);
+
+	if (!test_bit(msdu_id, htt->used_msdu_ids))
+		ath10k_warn("trying to free unallocated msdu_id %d\n", msdu_id);
+
+	ath10k_dbg(ATH10K_DBG_HTT, "htt tx free msdu_id %hu\n", msdu_id);
+	__clear_bit(msdu_id, htt->used_msdu_ids);
+}
+
+int ath10k_htt_tx_attach(struct ath10k_htt *htt)
+{
+	u8 pipe;
+
+	spin_lock_init(&htt->tx_lock);
+	init_waitqueue_head(&htt->empty_tx_wq);
+
+	/* At the beginning free queue number should hint us the maximum
+	 * queue length */
+	pipe = htt->ar->htc->endpoint[htt->eid].ul_pipe_id;
+	htt->max_num_pending_tx = ath10k_hif_get_free_queue_number(htt->ar,
+								   pipe);
+
+	ath10k_dbg(ATH10K_DBG_HTT, "htt tx max num pending tx %d\n",
+		   htt->max_num_pending_tx);
+
+	htt->pending_tx = kzalloc(sizeof(*htt->pending_tx) *
+				  htt->max_num_pending_tx, GFP_KERNEL);
+	if (!htt->pending_tx)
+		return -ENOMEM;
+
+	htt->used_msdu_ids = kzalloc(sizeof(unsigned long) *
+				     BITS_TO_LONGS(htt->max_num_pending_tx),
+				     GFP_KERNEL);
+	if (!htt->used_msdu_ids) {
+		kfree(htt->pending_tx);
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+static void ath10k_htt_tx_cleanup_pending(struct ath10k_htt *htt)
+{
+	struct sk_buff *txdesc;
+	int msdu_id;
+
+	/* No locks needed. Called after communication with the device has
+	 * been stopped. */
+
+	for (msdu_id = 0; msdu_id < htt->max_num_pending_tx; msdu_id++) {
+		if (!test_bit(msdu_id, htt->used_msdu_ids))
+			continue;
+
+		txdesc = htt->pending_tx[msdu_id];
+		if (!txdesc)
+			continue;
+
+		ath10k_dbg(ATH10K_DBG_HTT, "force cleanup msdu_id %hu\n",
+			   msdu_id);
+
+		if (ATH10K_SKB_CB(txdesc)->htt.refcount > 0)
+			ATH10K_SKB_CB(txdesc)->htt.refcount = 1;
+
+		ATH10K_SKB_CB(txdesc)->htt.discard = true;
+		ath10k_txrx_tx_unref(htt, txdesc);
+	}
+}
+
+void ath10k_htt_tx_detach(struct ath10k_htt *htt)
+{
+	ath10k_htt_tx_cleanup_pending(htt);
+	kfree(htt->pending_tx);
+	kfree(htt->used_msdu_ids);
+	return;
+}
+
+void ath10k_htt_htc_tx_complete(struct ath10k *ar, struct sk_buff *skb)
+{
+	struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(skb);
+	struct ath10k_htt *htt = ar->htt;
+
+	if (skb_cb->htt.is_conf) {
+		dev_kfree_skb_any(skb);
+		return;
+	}
+
+	if (skb_cb->is_aborted) {
+		skb_cb->htt.discard = true;
+
+		/* if the skbuff is aborted we need to make sure we'll free up
+		 * the tx resources, we can't simply run tx_unref() 2 times
+		 * because if htt tx completion came in earlier we'd access
+		 * unallocated memory */
+		if (skb_cb->htt.refcount > 1)
+			skb_cb->htt.refcount = 1;
+	}
+
+	ath10k_txrx_tx_unref(htt, skb);
+}
+
+int ath10k_htt_h2t_ver_req_msg(struct ath10k_htt *htt)
+{
+	struct sk_buff *skb;
+	struct htt_cmd *cmd;
+	int len = 0;
+	int ret;
+
+	len += sizeof(cmd->hdr);
+	len += sizeof(cmd->ver_req);
+
+	skb = ath10k_htc_alloc_skb(len);
+	if (!skb)
+		return -ENOMEM;
+
+	skb_put(skb, len);
+	cmd = (struct htt_cmd *)skb->data;
+	cmd->hdr.msg_type = HTT_H2T_MSG_TYPE_VERSION_REQ;
+
+	ATH10K_SKB_CB(skb)->htt.is_conf = true;
+
+	ret = ath10k_htc_send(htt->ar->htc, htt->eid, skb);
+	if (ret) {
+		dev_kfree_skb_any(skb);
+		return ret;
+	}
+
+	return 0;
+}
+
+int ath10k_htt_send_rx_ring_cfg_ll(struct ath10k_htt *htt)
+{
+	struct sk_buff *skb;
+	struct htt_cmd *cmd;
+	struct htt_rx_ring_setup_ring *ring;
+	const int num_rx_ring = 1;
+	u16 flags;
+	u32 fw_idx;
+	int len;
+	int ret;
+
+	/*
+	 * the HW expects the buffer to be an integral number of 4-byte
+	 * "words"
+	 */
+	BUILD_BUG_ON(!IS_ALIGNED(HTT_RX_BUF_SIZE, 4));
+	BUILD_BUG_ON((HTT_RX_BUF_SIZE & HTT_MAX_CACHE_LINE_SIZE_MASK) != 0);
+
+	len = sizeof(cmd->hdr) + sizeof(cmd->rx_setup.hdr)
+	    + (sizeof(*ring) * num_rx_ring);
+	skb = ath10k_htc_alloc_skb(len);
+	if (!skb)
+		return -ENOMEM;
+
+	skb_put(skb, len);
+
+	cmd = (struct htt_cmd *)skb->data;
+	ring = &cmd->rx_setup.rings[0];
+
+	cmd->hdr.msg_type = HTT_H2T_MSG_TYPE_RX_RING_CFG;
+	cmd->rx_setup.hdr.num_rings = 1;
+
+	/* FIXME: do we need all of this? */
+	flags = 0;
+	flags |= HTT_RX_RING_FLAGS_MAC80211_HDR;
+	flags |= HTT_RX_RING_FLAGS_MSDU_PAYLOAD;
+	flags |= HTT_RX_RING_FLAGS_PPDU_START;
+	flags |= HTT_RX_RING_FLAGS_PPDU_END;
+	flags |= HTT_RX_RING_FLAGS_MPDU_START;
+	flags |= HTT_RX_RING_FLAGS_MPDU_END;
+	flags |= HTT_RX_RING_FLAGS_MSDU_START;
+	flags |= HTT_RX_RING_FLAGS_MSDU_END;
+	flags |= HTT_RX_RING_FLAGS_RX_ATTENTION;
+	flags |= HTT_RX_RING_FLAGS_FRAG_INFO;
+	flags |= HTT_RX_RING_FLAGS_UNICAST_RX;
+	flags |= HTT_RX_RING_FLAGS_MULTICAST_RX;
+	flags |= HTT_RX_RING_FLAGS_CTRL_RX;
+	flags |= HTT_RX_RING_FLAGS_MGMT_RX;
+	flags |= HTT_RX_RING_FLAGS_NULL_RX;
+	flags |= HTT_RX_RING_FLAGS_PHY_DATA_RX;
+
+	fw_idx = __le32_to_cpu(*htt->rx_ring.alloc_idx.vaddr);
+
+	ring->fw_idx_shadow_reg_paddr =
+		__cpu_to_le32(htt->rx_ring.alloc_idx.paddr);
+	ring->rx_ring_base_paddr = __cpu_to_le32(htt->rx_ring.base_paddr);
+	ring->rx_ring_len = __cpu_to_le16(htt->rx_ring.size);
+	ring->rx_ring_bufsize = __cpu_to_le16(HTT_RX_BUF_SIZE);
+	ring->flags = __cpu_to_le16(flags);
+	ring->fw_idx_init_val = __cpu_to_le16(fw_idx);
+
+#define desc_offset(x) (offsetof(struct htt_rx_desc, x) / 4)
+
+	ring->mac80211_hdr_offset = __cpu_to_le16(desc_offset(rx_hdr_status));
+	ring->msdu_payload_offset = __cpu_to_le16(desc_offset(msdu_payload));
+	ring->ppdu_start_offset = __cpu_to_le16(desc_offset(ppdu_start));
+	ring->ppdu_end_offset = __cpu_to_le16(desc_offset(ppdu_end));
+	ring->mpdu_start_offset = __cpu_to_le16(desc_offset(mpdu_start));
+	ring->mpdu_end_offset = __cpu_to_le16(desc_offset(mpdu_end));
+	ring->msdu_start_offset = __cpu_to_le16(desc_offset(msdu_start));
+	ring->msdu_end_offset = __cpu_to_le16(desc_offset(msdu_end));
+	ring->rx_attention_offset = __cpu_to_le16(desc_offset(attention));
+	ring->frag_info_offset = __cpu_to_le16(desc_offset(frag_info));
+
+#undef desc_offset
+
+	ATH10K_SKB_CB(skb)->htt.is_conf = true;
+
+	ret = ath10k_htc_send(htt->ar->htc, htt->eid, skb);
+	if (ret) {
+		dev_kfree_skb_any(skb);
+		return ret;
+	}
+
+	return 0;
+}
+
+int ath10k_htt_mgmt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
+{
+	struct device *dev = htt->ar->dev;
+	struct ath10k_skb_cb *skb_cb;
+	struct sk_buff *txdesc = NULL;
+	struct htt_cmd *cmd;
+	u8 vdev_id = ATH10K_SKB_CB(msdu)->htt.vdev_id;
+	int len = 0;
+	int msdu_id = -1;
+	int res;
+
+
+	res = ath10k_htt_tx_inc_pending(htt);
+	if (res)
+		return res;
+
+	len += sizeof(cmd->hdr);
+	len += sizeof(cmd->mgmt_tx);
+
+	txdesc = ath10k_htc_alloc_skb(len);
+	if (!txdesc) {
+		res = -ENOMEM;
+		goto err;
+	}
+
+	spin_lock_bh(&htt->tx_lock);
+	msdu_id = ath10k_htt_tx_alloc_msdu_id(htt);
+	if (msdu_id < 0) {
+		spin_unlock_bh(&htt->tx_lock);
+		res = msdu_id;
+		goto err;
+	}
+	htt->pending_tx[msdu_id] = txdesc;
+	spin_unlock_bh(&htt->tx_lock);
+
+	res = ath10k_skb_map(dev, msdu);
+	if (res)
+		goto err;
+
+	skb_put(txdesc, len);
+	cmd = (struct htt_cmd *)txdesc->data;
+	cmd->hdr.msg_type         = HTT_H2T_MSG_TYPE_MGMT_TX;
+	cmd->mgmt_tx.msdu_paddr = __cpu_to_le32(ATH10K_SKB_CB(msdu)->paddr);
+	cmd->mgmt_tx.len        = __cpu_to_le32(msdu->len);
+	cmd->mgmt_tx.desc_id    = __cpu_to_le32(msdu_id);
+	cmd->mgmt_tx.vdev_id    = __cpu_to_le32(vdev_id);
+	memcpy(cmd->mgmt_tx.hdr, msdu->data,
+	       min_t(int, msdu->len, HTT_MGMT_FRM_HDR_DOWNLOAD_LEN));
+
+	/* refcount is decremented by HTC and HTT completions until it reaches
+	 * zero and is freed */
+	skb_cb = ATH10K_SKB_CB(txdesc);
+	skb_cb->htt.msdu_id = msdu_id;
+	skb_cb->htt.refcount = 2;
+	skb_cb->htt.msdu = msdu;
+
+	res = ath10k_htc_send(htt->ar->htc, htt->eid, txdesc);
+	if (res)
+		goto err;
+
+	return 0;
+
+err:
+	ath10k_skb_unmap(dev, msdu);
+
+	if (txdesc)
+		dev_kfree_skb_any(txdesc);
+	if (msdu_id >= 0) {
+		spin_lock_bh(&htt->tx_lock);
+		htt->pending_tx[msdu_id] = NULL;
+		ath10k_htt_tx_free_msdu_id(htt, msdu_id);
+		spin_unlock_bh(&htt->tx_lock);
+	}
+	ath10k_htt_tx_dec_pending(htt);
+	return res;
+}
+
+int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
+{
+	struct device *dev = htt->ar->dev;
+	struct htt_cmd *cmd;
+	struct htt_data_tx_desc_frag *tx_frags;
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)msdu->data;
+	struct ath10k_skb_cb *skb_cb;
+	struct sk_buff *txdesc = NULL;
+	struct sk_buff *txfrag = NULL;
+	u8 vdev_id = ATH10K_SKB_CB(msdu)->htt.vdev_id;
+	u8 tid;
+	int prefetch_len, desc_len, frag_len;
+	dma_addr_t frags_paddr;
+	int msdu_id = -1;
+	int res;
+	u8 flags0;
+	u16 flags1;
+
+	res = ath10k_htt_tx_inc_pending(htt);
+	if (res)
+		return res;
+
+	prefetch_len = min(htt->prefetch_len, msdu->len);
+	prefetch_len = roundup(prefetch_len, 4);
+
+	desc_len = sizeof(cmd->hdr) + sizeof(cmd->data_tx) + prefetch_len;
+	frag_len = sizeof(*tx_frags) * 2;
+
+	txdesc = ath10k_htc_alloc_skb(desc_len);
+	if (!txdesc) {
+		res = -ENOMEM;
+		goto err;
+	}
+
+	txfrag = dev_alloc_skb(frag_len);
+	if (!txfrag) {
+		res = -ENOMEM;
+		goto err;
+	}
+
+	if (!IS_ALIGNED((unsigned long)txdesc->data, 4)) {
+		ath10k_warn("htt alignment check failed. dropping packet.\n");
+		res = -EIO;
+		goto err;
+	}
+
+	spin_lock_bh(&htt->tx_lock);
+	msdu_id = ath10k_htt_tx_alloc_msdu_id(htt);
+	if (msdu_id < 0) {
+		spin_unlock_bh(&htt->tx_lock);
+		res = msdu_id;
+		goto err;
+	}
+	htt->pending_tx[msdu_id] = txdesc;
+	spin_unlock_bh(&htt->tx_lock);
+
+	res = ath10k_skb_map(dev, msdu);
+	if (res)
+		goto err;
+
+	/* tx fragment list must be terminated with zero-entry */
+	skb_put(txfrag, frag_len);
+	tx_frags = (struct htt_data_tx_desc_frag *)txfrag->data;
+	tx_frags[0].paddr = __cpu_to_le32(ATH10K_SKB_CB(msdu)->paddr);
+	tx_frags[0].len   = __cpu_to_le32(msdu->len);
+	tx_frags[1].paddr = __cpu_to_le32(0);
+	tx_frags[1].len   = __cpu_to_le32(0);
+
+	res = ath10k_skb_map(dev, txfrag);
+	if (res)
+		goto err;
+
+	ath10k_dbg(ATH10K_DBG_HTT, "txfrag 0x%llx msdu 0x%llx\n",
+		   (unsigned long long) ATH10K_SKB_CB(txfrag)->paddr,
+		   (unsigned long long) ATH10K_SKB_CB(msdu)->paddr);
+	ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "txfrag: ",
+			txfrag->data, frag_len);
+	ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "msdu: ",
+			msdu->data, msdu->len);
+
+	skb_put(txdesc, desc_len);
+	cmd = (struct htt_cmd *)txdesc->data;
+	memset(cmd, 0, desc_len);
+
+	tid = ATH10K_SKB_CB(msdu)->htt.tid;
+
+	ath10k_dbg(ATH10K_DBG_HTT, "htt data tx using tid %hhu\n", tid);
+
+	flags0  = 0;
+	if (!ieee80211_has_protected(hdr->frame_control))
+		flags0 |= HTT_DATA_TX_DESC_FLAGS0_NO_ENCRYPT;
+	flags0 |= HTT_DATA_TX_DESC_FLAGS0_MAC_HDR_PRESENT;
+	flags0 |= SM(ATH10K_HW_TXRX_NATIVE_WIFI,
+		     HTT_DATA_TX_DESC_FLAGS0_PKT_TYPE);
+
+	flags1  = 0;
+	flags1 |= SM((u16)vdev_id, HTT_DATA_TX_DESC_FLAGS1_VDEV_ID);
+	flags1 |= SM((u16)tid, HTT_DATA_TX_DESC_FLAGS1_EXT_TID);
+
+	frags_paddr = ATH10K_SKB_CB(txfrag)->paddr;
+
+	cmd->hdr.msg_type        = HTT_H2T_MSG_TYPE_TX_FRM;
+	cmd->data_tx.flags0      = flags0;
+	cmd->data_tx.flags1      = __cpu_to_le16(flags1);
+	cmd->data_tx.len         = __cpu_to_le16(msdu->len);
+	cmd->data_tx.id          = __cpu_to_le16(msdu_id);
+	cmd->data_tx.frags_paddr = __cpu_to_le32(frags_paddr);
+	cmd->data_tx.peerid      = __cpu_to_le32(HTT_INVALID_PEERID);
+
+	memcpy(cmd->data_tx.prefetch, msdu->data, prefetch_len);
+
+	/* refcount is decremented by HTC and HTT completions until it reaches
+	 * zero and is freed */
+	skb_cb = ATH10K_SKB_CB(txdesc);
+	skb_cb->htt.msdu_id = msdu_id;
+	skb_cb->htt.refcount = 2;
+	skb_cb->htt.txfrag = txfrag;
+	skb_cb->htt.msdu = msdu;
+
+	res = ath10k_htc_send(htt->ar->htc, htt->eid, txdesc);
+	if (res)
+		goto err;
+
+	return 0;
+err:
+	if (txfrag)
+		ath10k_skb_unmap(dev, txfrag);
+	if (txdesc)
+		dev_kfree_skb_any(txdesc);
+	if (txfrag)
+		dev_kfree_skb_any(txfrag);
+	if (msdu_id >= 0) {
+		spin_lock_bh(&htt->tx_lock);
+		htt->pending_tx[msdu_id] = NULL;
+		ath10k_htt_tx_free_msdu_id(htt, msdu_id);
+		spin_unlock_bh(&htt->tx_lock);
+	}
+	ath10k_htt_tx_dec_pending(htt);
+	ath10k_skb_unmap(dev, msdu);
+	return res;
+}

drivers/net/wireless/ath/ath10k/hw.h

@@ -0,0 +1,304 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _HW_H_
+#define _HW_H_
+
+#include "targaddrs.h"
+
+/* Supported FW version */
+#define SUPPORTED_FW_MAJOR	1
+#define SUPPORTED_FW_MINOR	0
+#define SUPPORTED_FW_RELEASE	0
+#define SUPPORTED_FW_BUILD	629
+
+/* QCA988X 1.0 definitions */
+#define QCA988X_HW_1_0_VERSION		0x4000002c
+#define QCA988X_HW_1_0_FW_DIR		"ath10k/QCA988X/hw1.0"
+#define QCA988X_HW_1_0_FW_FILE		"firmware.bin"
+#define QCA988X_HW_1_0_OTP_FILE		"otp.bin"
+#define QCA988X_HW_1_0_BOARD_DATA_FILE	"board.bin"
+#define QCA988X_HW_1_0_PATCH_LOAD_ADDR	0x1234
+
+/* QCA988X 2.0 definitions */
+#define QCA988X_HW_2_0_VERSION		0x4100016c
+#define QCA988X_HW_2_0_FW_DIR		"ath10k/QCA988X/hw2.0"
+#define QCA988X_HW_2_0_FW_FILE		"firmware.bin"
+#define QCA988X_HW_2_0_OTP_FILE		"otp.bin"
+#define QCA988X_HW_2_0_BOARD_DATA_FILE	"board.bin"
+#define QCA988X_HW_2_0_PATCH_LOAD_ADDR	0x1234
+
+/* Known pecularities:
+ *  - current FW doesn't support raw rx mode (last tested v599)
+ *  - current FW dumps upon raw tx mode (last tested v599)
+ *  - raw appears in nwifi decap, raw and nwifi appear in ethernet decap
+ *  - raw have FCS, nwifi doesn't
+ *  - ethernet frames have 802.11 header decapped and parts (base hdr, cipher
+ *    param, llc/snap) are aligned to 4byte boundaries each */
+enum ath10k_hw_txrx_mode {
+	ATH10K_HW_TXRX_RAW = 0,
+	ATH10K_HW_TXRX_NATIVE_WIFI = 1,
+	ATH10K_HW_TXRX_ETHERNET = 2,
+};
+
+enum ath10k_mcast2ucast_mode {
+	ATH10K_MCAST2UCAST_DISABLED = 0,
+	ATH10K_MCAST2UCAST_ENABLED = 1,
+};
+
+#define TARGET_NUM_VDEVS			8
+#define TARGET_NUM_PEER_AST			2
+#define TARGET_NUM_WDS_ENTRIES			32
+#define TARGET_DMA_BURST_SIZE			0
+#define TARGET_MAC_AGGR_DELIM			0
+#define TARGET_AST_SKID_LIMIT			16
+#define TARGET_NUM_PEERS			16
+#define TARGET_NUM_OFFLOAD_PEERS		0
+#define TARGET_NUM_OFFLOAD_REORDER_BUFS         0
+#define TARGET_NUM_PEER_KEYS			2
+#define TARGET_NUM_TIDS		(2 * ((TARGET_NUM_PEERS) + (TARGET_NUM_VDEVS)))
+#define TARGET_TX_CHAIN_MASK			(BIT(0) | BIT(1) | BIT(2))
+#define TARGET_RX_CHAIN_MASK			(BIT(0) | BIT(1) | BIT(2))
+#define TARGET_RX_TIMEOUT_LO_PRI		100
+#define TARGET_RX_TIMEOUT_HI_PRI		40
+#define TARGET_RX_DECAP_MODE			ATH10K_HW_TXRX_ETHERNET
+#define TARGET_SCAN_MAX_PENDING_REQS		4
+#define TARGET_BMISS_OFFLOAD_MAX_VDEV		3
+#define TARGET_ROAM_OFFLOAD_MAX_VDEV		3
+#define TARGET_ROAM_OFFLOAD_MAX_AP_PROFILES	8
+#define TARGET_GTK_OFFLOAD_MAX_VDEV		3
+#define TARGET_NUM_MCAST_GROUPS			0
+#define TARGET_NUM_MCAST_TABLE_ELEMS		0
+#define TARGET_MCAST2UCAST_MODE			ATH10K_MCAST2UCAST_DISABLED
+#define TARGET_TX_DBG_LOG_SIZE			1024
+#define TARGET_RX_SKIP_DEFRAG_TIMEOUT_DUP_DETECTION_CHECK 0
+#define TARGET_VOW_CONFIG			0
+#define TARGET_NUM_MSDU_DESC			(1024 + 400)
+#define TARGET_MAX_FRAG_ENTRIES			0
+
+
+/* Number of Copy Engines supported */
+#define CE_COUNT 8
+
+/*
+ * Total number of PCIe MSI interrupts requested for all interrupt sources.
+ * PCIe standard forces this to be a power of 2.
+ * Some Host OS's limit MSI requests that can be granted to 8
+ * so for now we abide by this limit and avoid requesting more
+ * than that.
+ */
+#define MSI_NUM_REQUEST_LOG2	3
+#define MSI_NUM_REQUEST		(1<<MSI_NUM_REQUEST_LOG2)
+
+/*
+ * Granted MSIs are assigned as follows:
+ * Firmware uses the first
+ * Remaining MSIs, if any, are used by Copy Engines
+ * This mapping is known to both Target firmware and Host software.
+ * It may be changed as long as Host and Target are kept in sync.
+ */
+/* MSI for firmware (errors, etc.) */
+#define MSI_ASSIGN_FW		0
+
+/* MSIs for Copy Engines */
+#define MSI_ASSIGN_CE_INITIAL	1
+#define MSI_ASSIGN_CE_MAX	7
+
+/* as of IP3.7.1 */
+#define RTC_STATE_V_ON				3
+
+#define RTC_STATE_COLD_RESET_MASK		0x00000400
+#define RTC_STATE_V_LSB				0
+#define RTC_STATE_V_MASK			0x00000007
+#define RTC_STATE_ADDRESS			0x0000
+#define PCIE_SOC_WAKE_V_MASK			0x00000001
+#define PCIE_SOC_WAKE_ADDRESS			0x0004
+#define PCIE_SOC_WAKE_RESET			0x00000000
+#define SOC_GLOBAL_RESET_ADDRESS		0x0008
+
+#define RTC_SOC_BASE_ADDRESS			0x00004000
+#define RTC_WMAC_BASE_ADDRESS			0x00005000
+#define MAC_COEX_BASE_ADDRESS			0x00006000
+#define BT_COEX_BASE_ADDRESS			0x00007000
+#define SOC_PCIE_BASE_ADDRESS			0x00008000
+#define SOC_CORE_BASE_ADDRESS			0x00009000
+#define WLAN_UART_BASE_ADDRESS			0x0000c000
+#define WLAN_SI_BASE_ADDRESS			0x00010000
+#define WLAN_GPIO_BASE_ADDRESS			0x00014000
+#define WLAN_ANALOG_INTF_BASE_ADDRESS		0x0001c000
+#define WLAN_MAC_BASE_ADDRESS			0x00020000
+#define EFUSE_BASE_ADDRESS			0x00030000
+#define FPGA_REG_BASE_ADDRESS			0x00039000
+#define WLAN_UART2_BASE_ADDRESS			0x00054c00
+#define CE_WRAPPER_BASE_ADDRESS			0x00057000
+#define CE0_BASE_ADDRESS			0x00057400
+#define CE1_BASE_ADDRESS			0x00057800
+#define CE2_BASE_ADDRESS			0x00057c00
+#define CE3_BASE_ADDRESS			0x00058000
+#define CE4_BASE_ADDRESS			0x00058400
+#define CE5_BASE_ADDRESS			0x00058800
+#define CE6_BASE_ADDRESS			0x00058c00
+#define CE7_BASE_ADDRESS			0x00059000
+#define DBI_BASE_ADDRESS			0x00060000
+#define WLAN_ANALOG_INTF_PCIE_BASE_ADDRESS	0x0006c000
+#define PCIE_LOCAL_BASE_ADDRESS			0x00080000
+
+#define SOC_RESET_CONTROL_OFFSET		0x00000000
+#define SOC_RESET_CONTROL_SI0_RST_MASK		0x00000001
+#define SOC_CPU_CLOCK_OFFSET			0x00000020
+#define SOC_CPU_CLOCK_STANDARD_LSB		0
+#define SOC_CPU_CLOCK_STANDARD_MASK		0x00000003
+#define SOC_CLOCK_CONTROL_OFFSET		0x00000028
+#define SOC_CLOCK_CONTROL_SI0_CLK_MASK		0x00000001
+#define SOC_SYSTEM_SLEEP_OFFSET			0x000000c4
+#define SOC_LPO_CAL_OFFSET			0x000000e0
+#define SOC_LPO_CAL_ENABLE_LSB			20
+#define SOC_LPO_CAL_ENABLE_MASK			0x00100000
+
+#define WLAN_RESET_CONTROL_COLD_RST_MASK	0x00000008
+#define WLAN_RESET_CONTROL_WARM_RST_MASK	0x00000004
+#define WLAN_SYSTEM_SLEEP_DISABLE_LSB		0
+#define WLAN_SYSTEM_SLEEP_DISABLE_MASK		0x00000001
+
+#define WLAN_GPIO_PIN0_ADDRESS			0x00000028
+#define WLAN_GPIO_PIN0_CONFIG_MASK		0x00007800
+#define WLAN_GPIO_PIN1_ADDRESS			0x0000002c
+#define WLAN_GPIO_PIN1_CONFIG_MASK		0x00007800
+#define WLAN_GPIO_PIN10_ADDRESS			0x00000050
+#define WLAN_GPIO_PIN11_ADDRESS			0x00000054
+#define WLAN_GPIO_PIN12_ADDRESS			0x00000058
+#define WLAN_GPIO_PIN13_ADDRESS			0x0000005c
+
+#define CLOCK_GPIO_OFFSET			0xffffffff
+#define CLOCK_GPIO_BT_CLK_OUT_EN_LSB		0
+#define CLOCK_GPIO_BT_CLK_OUT_EN_MASK		0
+
+#define SI_CONFIG_OFFSET			0x00000000
+#define SI_CONFIG_BIDIR_OD_DATA_LSB		18
+#define SI_CONFIG_BIDIR_OD_DATA_MASK		0x00040000
+#define SI_CONFIG_I2C_LSB			16
+#define SI_CONFIG_I2C_MASK			0x00010000
+#define SI_CONFIG_POS_SAMPLE_LSB		7
+#define SI_CONFIG_POS_SAMPLE_MASK		0x00000080
+#define SI_CONFIG_INACTIVE_DATA_LSB		5
+#define SI_CONFIG_INACTIVE_DATA_MASK		0x00000020
+#define SI_CONFIG_INACTIVE_CLK_LSB		4
+#define SI_CONFIG_INACTIVE_CLK_MASK		0x00000010
+#define SI_CONFIG_DIVIDER_LSB			0
+#define SI_CONFIG_DIVIDER_MASK			0x0000000f
+#define SI_CS_OFFSET				0x00000004
+#define SI_CS_DONE_ERR_MASK			0x00000400
+#define SI_CS_DONE_INT_MASK			0x00000200
+#define SI_CS_START_LSB				8
+#define SI_CS_START_MASK			0x00000100
+#define SI_CS_RX_CNT_LSB			4
+#define SI_CS_RX_CNT_MASK			0x000000f0
+#define SI_CS_TX_CNT_LSB			0
+#define SI_CS_TX_CNT_MASK			0x0000000f
+
+#define SI_TX_DATA0_OFFSET			0x00000008
+#define SI_TX_DATA1_OFFSET			0x0000000c
+#define SI_RX_DATA0_OFFSET			0x00000010
+#define SI_RX_DATA1_OFFSET			0x00000014
+
+#define CORE_CTRL_CPU_INTR_MASK			0x00002000
+#define CORE_CTRL_ADDRESS			0x0000
+#define PCIE_INTR_ENABLE_ADDRESS		0x0008
+#define PCIE_INTR_CLR_ADDRESS			0x0014
+#define SCRATCH_3_ADDRESS			0x0030
+
+/* Firmware indications to the Host via SCRATCH_3 register. */
+#define FW_INDICATOR_ADDRESS	(SOC_CORE_BASE_ADDRESS + SCRATCH_3_ADDRESS)
+#define FW_IND_EVENT_PENDING			1
+#define FW_IND_INITIALIZED			2
+
+/* HOST_REG interrupt from firmware */
+#define PCIE_INTR_FIRMWARE_MASK			0x00000400
+#define PCIE_INTR_CE_MASK_ALL			0x0007f800
+
+#define DRAM_BASE_ADDRESS			0x00400000
+
+#define MISSING 0
+
+#define SYSTEM_SLEEP_OFFSET			SOC_SYSTEM_SLEEP_OFFSET
+#define WLAN_SYSTEM_SLEEP_OFFSET		SOC_SYSTEM_SLEEP_OFFSET
+#define WLAN_RESET_CONTROL_OFFSET		SOC_RESET_CONTROL_OFFSET
+#define CLOCK_CONTROL_OFFSET			SOC_CLOCK_CONTROL_OFFSET
+#define CLOCK_CONTROL_SI0_CLK_MASK		SOC_CLOCK_CONTROL_SI0_CLK_MASK
+#define RESET_CONTROL_MBOX_RST_MASK		MISSING
+#define RESET_CONTROL_SI0_RST_MASK		SOC_RESET_CONTROL_SI0_RST_MASK
+#define GPIO_BASE_ADDRESS			WLAN_GPIO_BASE_ADDRESS
+#define GPIO_PIN0_OFFSET			WLAN_GPIO_PIN0_ADDRESS
+#define GPIO_PIN1_OFFSET			WLAN_GPIO_PIN1_ADDRESS
+#define GPIO_PIN0_CONFIG_MASK			WLAN_GPIO_PIN0_CONFIG_MASK
+#define GPIO_PIN1_CONFIG_MASK			WLAN_GPIO_PIN1_CONFIG_MASK
+#define SI_BASE_ADDRESS				WLAN_SI_BASE_ADDRESS
+#define SCRATCH_BASE_ADDRESS			SOC_CORE_BASE_ADDRESS
+#define LOCAL_SCRATCH_OFFSET			0x18
+#define CPU_CLOCK_OFFSET			SOC_CPU_CLOCK_OFFSET
+#define LPO_CAL_OFFSET				SOC_LPO_CAL_OFFSET
+#define GPIO_PIN10_OFFSET			WLAN_GPIO_PIN10_ADDRESS
+#define GPIO_PIN11_OFFSET			WLAN_GPIO_PIN11_ADDRESS
+#define GPIO_PIN12_OFFSET			WLAN_GPIO_PIN12_ADDRESS
+#define GPIO_PIN13_OFFSET			WLAN_GPIO_PIN13_ADDRESS
+#define CPU_CLOCK_STANDARD_LSB			SOC_CPU_CLOCK_STANDARD_LSB
+#define CPU_CLOCK_STANDARD_MASK			SOC_CPU_CLOCK_STANDARD_MASK
+#define LPO_CAL_ENABLE_LSB			SOC_LPO_CAL_ENABLE_LSB
+#define LPO_CAL_ENABLE_MASK			SOC_LPO_CAL_ENABLE_MASK
+#define ANALOG_INTF_BASE_ADDRESS		WLAN_ANALOG_INTF_BASE_ADDRESS
+#define MBOX_BASE_ADDRESS			MISSING
+#define INT_STATUS_ENABLE_ERROR_LSB		MISSING
+#define INT_STATUS_ENABLE_ERROR_MASK		MISSING
+#define INT_STATUS_ENABLE_CPU_LSB		MISSING
+#define INT_STATUS_ENABLE_CPU_MASK		MISSING
+#define INT_STATUS_ENABLE_COUNTER_LSB		MISSING
+#define INT_STATUS_ENABLE_COUNTER_MASK		MISSING
+#define INT_STATUS_ENABLE_MBOX_DATA_LSB		MISSING
+#define INT_STATUS_ENABLE_MBOX_DATA_MASK	MISSING
+#define ERROR_STATUS_ENABLE_RX_UNDERFLOW_LSB	MISSING
+#define ERROR_STATUS_ENABLE_RX_UNDERFLOW_MASK	MISSING
+#define ERROR_STATUS_ENABLE_TX_OVERFLOW_LSB	MISSING
+#define ERROR_STATUS_ENABLE_TX_OVERFLOW_MASK	MISSING
+#define COUNTER_INT_STATUS_ENABLE_BIT_LSB	MISSING
+#define COUNTER_INT_STATUS_ENABLE_BIT_MASK	MISSING
+#define INT_STATUS_ENABLE_ADDRESS		MISSING
+#define CPU_INT_STATUS_ENABLE_BIT_LSB		MISSING
+#define CPU_INT_STATUS_ENABLE_BIT_MASK		MISSING
+#define HOST_INT_STATUS_ADDRESS			MISSING
+#define CPU_INT_STATUS_ADDRESS			MISSING
+#define ERROR_INT_STATUS_ADDRESS		MISSING
+#define ERROR_INT_STATUS_WAKEUP_MASK		MISSING
+#define ERROR_INT_STATUS_WAKEUP_LSB		MISSING
+#define ERROR_INT_STATUS_RX_UNDERFLOW_MASK	MISSING
+#define ERROR_INT_STATUS_RX_UNDERFLOW_LSB	MISSING
+#define ERROR_INT_STATUS_TX_OVERFLOW_MASK	MISSING
+#define ERROR_INT_STATUS_TX_OVERFLOW_LSB	MISSING
+#define COUNT_DEC_ADDRESS			MISSING
+#define HOST_INT_STATUS_CPU_MASK		MISSING
+#define HOST_INT_STATUS_CPU_LSB			MISSING
+#define HOST_INT_STATUS_ERROR_MASK		MISSING
+#define HOST_INT_STATUS_ERROR_LSB		MISSING
+#define HOST_INT_STATUS_COUNTER_MASK		MISSING
+#define HOST_INT_STATUS_COUNTER_LSB		MISSING
+#define RX_LOOKAHEAD_VALID_ADDRESS		MISSING
+#define WINDOW_DATA_ADDRESS			MISSING
+#define WINDOW_READ_ADDR_ADDRESS		MISSING
+#define WINDOW_WRITE_ADDR_ADDRESS		MISSING
+
+#define RTC_STATE_V_GET(x) (((x) & RTC_STATE_V_MASK) >> RTC_STATE_V_LSB)
+
+#endif /* _HW_H_ */

drivers/net/wireless/ath/ath10k/mac.c

@@ -0,0 +1,3066 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "mac.h"
+
+#include <net/mac80211.h>
+#include <linux/etherdevice.h>
+
+#include "core.h"
+#include "debug.h"
+#include "wmi.h"
+#include "htt.h"
+#include "txrx.h"
+
+/**********/
+/* Crypto */
+/**********/
+
+static int ath10k_send_key(struct ath10k_vif *arvif,
+			   struct ieee80211_key_conf *key,
+			   enum set_key_cmd cmd,
+			   const u8 *macaddr)
+{
+	struct wmi_vdev_install_key_arg arg = {
+		.vdev_id = arvif->vdev_id,
+		.key_idx = key->keyidx,
+		.key_len = key->keylen,
+		.key_data = key->key,
+		.macaddr = macaddr,
+	};
+
+	if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
+		arg.key_flags = WMI_KEY_PAIRWISE;
+	else
+		arg.key_flags = WMI_KEY_GROUP;
+
+	switch (key->cipher) {
+	case WLAN_CIPHER_SUITE_CCMP:
+		arg.key_cipher = WMI_CIPHER_AES_CCM;
+		key->flags |= IEEE80211_KEY_FLAG_SW_MGMT_TX;
+		break;
+	case WLAN_CIPHER_SUITE_TKIP:
+		key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
+		arg.key_cipher = WMI_CIPHER_TKIP;
+		arg.key_txmic_len = 8;
+		arg.key_rxmic_len = 8;
+		break;
+	case WLAN_CIPHER_SUITE_WEP40:
+	case WLAN_CIPHER_SUITE_WEP104:
+		arg.key_cipher = WMI_CIPHER_WEP;
+		/* AP/IBSS mode requires self-key to be groupwise
+		 * Otherwise pairwise key must be set */
+		if (memcmp(macaddr, arvif->vif->addr, ETH_ALEN))
+			arg.key_flags = WMI_KEY_PAIRWISE;
+		break;
+	default:
+		ath10k_warn("cipher %d is not supported\n", key->cipher);
+		return -EOPNOTSUPP;
+	}
+
+	if (cmd == DISABLE_KEY) {
+		arg.key_cipher = WMI_CIPHER_NONE;
+		arg.key_data = NULL;
+	}
+
+	return ath10k_wmi_vdev_install_key(arvif->ar, &arg);
+}
+
+static int ath10k_install_key(struct ath10k_vif *arvif,
+			      struct ieee80211_key_conf *key,
+			      enum set_key_cmd cmd,
+			      const u8 *macaddr)
+{
+	struct ath10k *ar = arvif->ar;
+	int ret;
+
+	INIT_COMPLETION(ar->install_key_done);
+
+	ret = ath10k_send_key(arvif, key, cmd, macaddr);
+	if (ret)
+		return ret;
+
+	ret = wait_for_completion_timeout(&ar->install_key_done, 3*HZ);
+	if (ret == 0)
+		return -ETIMEDOUT;
+
+	return 0;
+}
+
+static int ath10k_install_peer_wep_keys(struct ath10k_vif *arvif,
+					const u8 *addr)
+{
+	struct ath10k *ar = arvif->ar;
+	struct ath10k_peer *peer;
+	int ret;
+	int i;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	spin_lock_bh(&ar->data_lock);
+	peer = ath10k_peer_find(ar, arvif->vdev_id, addr);
+	spin_unlock_bh(&ar->data_lock);
+
+	if (!peer)
+		return -ENOENT;
+
+	for (i = 0; i < ARRAY_SIZE(arvif->wep_keys); i++) {
+		if (arvif->wep_keys[i] == NULL)
+			continue;
+
+		ret = ath10k_install_key(arvif, arvif->wep_keys[i], SET_KEY,
+					 addr);
+		if (ret)
+			return ret;
+
+		peer->keys[i] = arvif->wep_keys[i];
+	}
+
+	return 0;
+}
+
+static int ath10k_clear_peer_keys(struct ath10k_vif *arvif,
+				  const u8 *addr)
+{
+	struct ath10k *ar = arvif->ar;
+	struct ath10k_peer *peer;
+	int first_errno = 0;
+	int ret;
+	int i;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	spin_lock_bh(&ar->data_lock);
+	peer = ath10k_peer_find(ar, arvif->vdev_id, addr);
+	spin_unlock_bh(&ar->data_lock);
+
+	if (!peer)
+		return -ENOENT;
+
+	for (i = 0; i < ARRAY_SIZE(peer->keys); i++) {
+		if (peer->keys[i] == NULL)
+			continue;
+
+		ret = ath10k_install_key(arvif, peer->keys[i],
+					 DISABLE_KEY, addr);
+		if (ret && first_errno == 0)
+			first_errno = ret;
+
+		if (ret)
+			ath10k_warn("could not remove peer wep key %d (%d)\n",
+				    i, ret);
+
+		peer->keys[i] = NULL;
+	}
+
+	return first_errno;
+}
+
+static int ath10k_clear_vdev_key(struct ath10k_vif *arvif,
+				 struct ieee80211_key_conf *key)
+{
+	struct ath10k *ar = arvif->ar;
+	struct ath10k_peer *peer;
+	u8 addr[ETH_ALEN];
+	int first_errno = 0;
+	int ret;
+	int i;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	for (;;) {
+		/* since ath10k_install_key we can't hold data_lock all the
+		 * time, so we try to remove the keys incrementally */
+		spin_lock_bh(&ar->data_lock);
+		i = 0;
+		list_for_each_entry(peer, &ar->peers, list) {
+			for (i = 0; i < ARRAY_SIZE(peer->keys); i++) {
+				if (peer->keys[i] == key) {
+					memcpy(addr, peer->addr, ETH_ALEN);
+					peer->keys[i] = NULL;
+					break;
+				}
+			}
+
+			if (i < ARRAY_SIZE(peer->keys))
+				break;
+		}
+		spin_unlock_bh(&ar->data_lock);
+
+		if (i == ARRAY_SIZE(peer->keys))
+			break;
+
+		ret = ath10k_install_key(arvif, key, DISABLE_KEY, addr);
+		if (ret && first_errno == 0)
+			first_errno = ret;
+
+		if (ret)
+			ath10k_warn("could not remove key for %pM\n", addr);
+	}
+
+	return first_errno;
+}
+
+
+/*********************/
+/* General utilities */
+/*********************/
+
+static inline enum wmi_phy_mode
+chan_to_phymode(const struct cfg80211_chan_def *chandef)
+{
+	enum wmi_phy_mode phymode = MODE_UNKNOWN;
+
+	switch (chandef->chan->band) {
+	case IEEE80211_BAND_2GHZ:
+		switch (chandef->width) {
+		case NL80211_CHAN_WIDTH_20_NOHT:
+			phymode = MODE_11G;
+			break;
+		case NL80211_CHAN_WIDTH_20:
+			phymode = MODE_11NG_HT20;
+			break;
+		case NL80211_CHAN_WIDTH_40:
+			phymode = MODE_11NG_HT40;
+			break;
+		case NL80211_CHAN_WIDTH_80:
+		case NL80211_CHAN_WIDTH_80P80:
+		case NL80211_CHAN_WIDTH_160:
+			phymode = MODE_UNKNOWN;
+			break;
+		}
+		break;
+	case IEEE80211_BAND_5GHZ:
+		switch (chandef->width) {
+		case NL80211_CHAN_WIDTH_20_NOHT:
+			phymode = MODE_11A;
+			break;
+		case NL80211_CHAN_WIDTH_20:
+			phymode = MODE_11NA_HT20;
+			break;
+		case NL80211_CHAN_WIDTH_40:
+			phymode = MODE_11NA_HT40;
+			break;
+		case NL80211_CHAN_WIDTH_80:
+			phymode = MODE_11AC_VHT80;
+			break;
+		case NL80211_CHAN_WIDTH_80P80:
+		case NL80211_CHAN_WIDTH_160:
+			phymode = MODE_UNKNOWN;
+			break;
+		}
+		break;
+	default:
+		break;
+	}
+
+	WARN_ON(phymode == MODE_UNKNOWN);
+	return phymode;
+}
+
+static u8 ath10k_parse_mpdudensity(u8 mpdudensity)
+{
+/*
+ * 802.11n D2.0 defined values for "Minimum MPDU Start Spacing":
+ *   0 for no restriction
+ *   1 for 1/4 us
+ *   2 for 1/2 us
+ *   3 for 1 us
+ *   4 for 2 us
+ *   5 for 4 us
+ *   6 for 8 us
+ *   7 for 16 us
+ */
+	switch (mpdudensity) {
+	case 0:
+		return 0;
+	case 1:
+	case 2:
+	case 3:
+	/* Our lower layer calculations limit our precision to
+	   1 microsecond */
+		return 1;
+	case 4:
+		return 2;
+	case 5:
+		return 4;
+	case 6:
+		return 8;
+	case 7:
+		return 16;
+	default:
+		return 0;
+	}
+}
+
+static int ath10k_peer_create(struct ath10k *ar, u32 vdev_id, const u8 *addr)
+{
+	int ret;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	ret = ath10k_wmi_peer_create(ar, vdev_id, addr);
+	if (ret)
+		return ret;
+
+	ret = ath10k_wait_for_peer_created(ar, vdev_id, addr);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static int ath10k_peer_delete(struct ath10k *ar, u32 vdev_id, const u8 *addr)
+{
+	int ret;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	ret = ath10k_wmi_peer_delete(ar, vdev_id, addr);
+	if (ret)
+		return ret;
+
+	ret = ath10k_wait_for_peer_deleted(ar, vdev_id, addr);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static void ath10k_peer_cleanup(struct ath10k *ar, u32 vdev_id)
+{
+	struct ath10k_peer *peer, *tmp;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	spin_lock_bh(&ar->data_lock);
+	list_for_each_entry_safe(peer, tmp, &ar->peers, list) {
+		if (peer->vdev_id != vdev_id)
+			continue;
+
+		ath10k_warn("removing stale peer %pM from vdev_id %d\n",
+			    peer->addr, vdev_id);
+
+		list_del(&peer->list);
+		kfree(peer);
+	}
+	spin_unlock_bh(&ar->data_lock);
+}
+
+/************************/
+/* Interface management */
+/************************/
+
+static inline int ath10k_vdev_setup_sync(struct ath10k *ar)
+{
+	int ret;
+
+	ret = wait_for_completion_timeout(&ar->vdev_setup_done,
+					  ATH10K_VDEV_SETUP_TIMEOUT_HZ);
+	if (ret == 0)
+		return -ETIMEDOUT;
+
+	return 0;
+}
+
+static int ath10k_vdev_start(struct ath10k_vif *arvif)
+{
+	struct ath10k *ar = arvif->ar;
+	struct ieee80211_conf *conf = &ar->hw->conf;
+	struct ieee80211_channel *channel = conf->chandef.chan;
+	struct wmi_vdev_start_request_arg arg = {};
+	int ret = 0;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	INIT_COMPLETION(ar->vdev_setup_done);
+
+	arg.vdev_id = arvif->vdev_id;
+	arg.dtim_period = arvif->dtim_period;
+	arg.bcn_intval = arvif->beacon_interval;
+
+	arg.channel.freq = channel->center_freq;
+
+	arg.channel.band_center_freq1 = conf->chandef.center_freq1;
+
+	arg.channel.mode = chan_to_phymode(&conf->chandef);
+
+	arg.channel.min_power = channel->max_power * 3;
+	arg.channel.max_power = channel->max_power * 4;
+	arg.channel.max_reg_power = channel->max_reg_power * 4;
+	arg.channel.max_antenna_gain = channel->max_antenna_gain;
+
+	if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
+		arg.ssid = arvif->u.ap.ssid;
+		arg.ssid_len = arvif->u.ap.ssid_len;
+		arg.hidden_ssid = arvif->u.ap.hidden_ssid;
+	} else if (arvif->vdev_type == WMI_VDEV_TYPE_IBSS) {
+		arg.ssid = arvif->vif->bss_conf.ssid;
+		arg.ssid_len = arvif->vif->bss_conf.ssid_len;
+	}
+
+	ret = ath10k_wmi_vdev_start(ar, &arg);
+	if (ret) {
+		ath10k_warn("WMI vdev start failed: ret %d\n", ret);
+		return ret;
+	}
+
+	ret = ath10k_vdev_setup_sync(ar);
+	if (ret) {
+		ath10k_warn("vdev setup failed %d\n", ret);
+		return ret;
+	}
+
+	return ret;
+}
+
+static int ath10k_vdev_stop(struct ath10k_vif *arvif)
+{
+	struct ath10k *ar = arvif->ar;
+	int ret;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	INIT_COMPLETION(ar->vdev_setup_done);
+
+	ret = ath10k_wmi_vdev_stop(ar, arvif->vdev_id);
+	if (ret) {
+		ath10k_warn("WMI vdev stop failed: ret %d\n", ret);
+		return ret;
+	}
+
+	ret = ath10k_vdev_setup_sync(ar);
+	if (ret) {
+		ath10k_warn("vdev setup failed %d\n", ret);
+		return ret;
+	}
+
+	return ret;
+}
+
+static int ath10k_monitor_start(struct ath10k *ar, int vdev_id)
+{
+	struct ieee80211_channel *channel = ar->hw->conf.chandef.chan;
+	struct wmi_vdev_start_request_arg arg = {};
+	enum nl80211_channel_type type;
+	int ret = 0;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	type = cfg80211_get_chandef_type(&ar->hw->conf.chandef);
+
+	arg.vdev_id = vdev_id;
+	arg.channel.freq = channel->center_freq;
+	arg.channel.band_center_freq1 = ar->hw->conf.chandef.center_freq1;
+
+	/* TODO setup this dynamically, what in case we
+	   don't have any vifs? */
+	arg.channel.mode = chan_to_phymode(&ar->hw->conf.chandef);
+
+	arg.channel.min_power = channel->max_power * 3;
+	arg.channel.max_power = channel->max_power * 4;
+	arg.channel.max_reg_power = channel->max_reg_power * 4;
+	arg.channel.max_antenna_gain = channel->max_antenna_gain;
+
+	ret = ath10k_wmi_vdev_start(ar, &arg);
+	if (ret) {
+		ath10k_warn("Monitor vdev start failed: ret %d\n", ret);
+		return ret;
+	}
+
+	ret = ath10k_vdev_setup_sync(ar);
+	if (ret) {
+		ath10k_warn("Monitor vdev setup failed %d\n", ret);
+		return ret;
+	}
+
+	ret = ath10k_wmi_vdev_up(ar, vdev_id, 0, ar->mac_addr);
+	if (ret) {
+		ath10k_warn("Monitor vdev up failed: %d\n", ret);
+		goto vdev_stop;
+	}
+
+	ar->monitor_vdev_id = vdev_id;
+	ar->monitor_enabled = true;
+
+	return 0;
+
+vdev_stop:
+	ret = ath10k_wmi_vdev_stop(ar, ar->monitor_vdev_id);
+	if (ret)
+		ath10k_warn("Monitor vdev stop failed: %d\n", ret);
+
+	return ret;
+}
+
+static int ath10k_monitor_stop(struct ath10k *ar)
+{
+	int ret = 0;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	/* For some reasons, ath10k_wmi_vdev_down() here couse
+	 * often ath10k_wmi_vdev_stop() to fail. Next we could
+	 * not run monitor vdev and driver reload
+	 * required. Don't see such problems we skip
+	 * ath10k_wmi_vdev_down() here.
+	 */
+
+	ret = ath10k_wmi_vdev_stop(ar, ar->monitor_vdev_id);
+	if (ret)
+		ath10k_warn("Monitor vdev stop failed: %d\n", ret);
+
+	ret = ath10k_vdev_setup_sync(ar);
+	if (ret)
+		ath10k_warn("Monitor_down sync failed: %d\n", ret);
+
+	ar->monitor_enabled = false;
+	return ret;
+}
+
+static int ath10k_monitor_create(struct ath10k *ar)
+{
+	int bit, ret = 0;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	if (ar->monitor_present) {
+		ath10k_warn("Monitor mode already enabled\n");
+		return 0;
+	}
+
+	bit = ffs(ar->free_vdev_map);
+	if (bit == 0) {
+		ath10k_warn("No free VDEV slots\n");
+		return -ENOMEM;
+	}
+
+	ar->monitor_vdev_id = bit - 1;
+	ar->free_vdev_map &= ~(1 << ar->monitor_vdev_id);
+
+	ret = ath10k_wmi_vdev_create(ar, ar->monitor_vdev_id,
+				     WMI_VDEV_TYPE_MONITOR,
+				     0, ar->mac_addr);
+	if (ret) {
+		ath10k_warn("WMI vdev monitor create failed: ret %d\n", ret);
+		goto vdev_fail;
+	}
+
+	ath10k_dbg(ATH10K_DBG_MAC, "Monitor interface created, vdev id: %d\n",
+		   ar->monitor_vdev_id);
+
+	ar->monitor_present = true;
+	return 0;
+
+vdev_fail:
+	/*
+	 * Restore the ID to the global map.
+	 */
+	ar->free_vdev_map |= 1 << (ar->monitor_vdev_id);
+	return ret;
+}
+
+static int ath10k_monitor_destroy(struct ath10k *ar)
+{
+	int ret = 0;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	if (!ar->monitor_present)
+		return 0;
+
+	ret = ath10k_wmi_vdev_delete(ar, ar->monitor_vdev_id);
+	if (ret) {
+		ath10k_warn("WMI vdev monitor delete failed: %d\n", ret);
+		return ret;
+	}
+
+	ar->free_vdev_map |= 1 << (ar->monitor_vdev_id);
+	ar->monitor_present = false;
+
+	ath10k_dbg(ATH10K_DBG_MAC, "Monitor interface destroyed, vdev id: %d\n",
+		   ar->monitor_vdev_id);
+	return ret;
+}
+
+static void ath10k_control_beaconing(struct ath10k_vif *arvif,
+				struct ieee80211_bss_conf *info)
+{
+	int ret = 0;
+
+	if (!info->enable_beacon) {
+		ath10k_vdev_stop(arvif);
+		return;
+	}
+
+	arvif->tx_seq_no = 0x1000;
+
+	ret = ath10k_vdev_start(arvif);
+	if (ret)
+		return;
+
+	ret = ath10k_wmi_vdev_up(arvif->ar, arvif->vdev_id, 0, info->bssid);
+	if (ret) {
+		ath10k_warn("Failed to bring up VDEV: %d\n",
+			    arvif->vdev_id);
+		return;
+	}
+	ath10k_dbg(ATH10K_DBG_MAC, "VDEV: %d up\n", arvif->vdev_id);
+}
+
+static void ath10k_control_ibss(struct ath10k_vif *arvif,
+				struct ieee80211_bss_conf *info,
+				const u8 self_peer[ETH_ALEN])
+{
+	int ret = 0;
+
+	if (!info->ibss_joined) {
+		ret = ath10k_peer_delete(arvif->ar, arvif->vdev_id, self_peer);
+		if (ret)
+			ath10k_warn("Failed to delete IBSS self peer:%pM for VDEV:%d ret:%d\n",
+				    self_peer, arvif->vdev_id, ret);
+
+		if (is_zero_ether_addr(arvif->u.ibss.bssid))
+			return;
+
+		ret = ath10k_peer_delete(arvif->ar, arvif->vdev_id,
+					 arvif->u.ibss.bssid);
+		if (ret) {
+			ath10k_warn("Failed to delete IBSS BSSID peer:%pM for VDEV:%d ret:%d\n",
+				    arvif->u.ibss.bssid, arvif->vdev_id, ret);
+			return;
+		}
+
+		memset(arvif->u.ibss.bssid, 0, ETH_ALEN);
+
+		return;
+	}
+
+	ret = ath10k_peer_create(arvif->ar, arvif->vdev_id, self_peer);
+	if (ret) {
+		ath10k_warn("Failed to create IBSS self peer:%pM for VDEV:%d ret:%d\n",
+			    self_peer, arvif->vdev_id, ret);
+		return;
+	}
+
+	ret = ath10k_wmi_vdev_set_param(arvif->ar, arvif->vdev_id,
+					WMI_VDEV_PARAM_ATIM_WINDOW,
+					ATH10K_DEFAULT_ATIM);
+	if (ret)
+		ath10k_warn("Failed to set IBSS ATIM for VDEV:%d ret:%d\n",
+			    arvif->vdev_id, ret);
+}
+
+/*
+ * Review this when mac80211 gains per-interface powersave support.
+ */
+static void ath10k_ps_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
+{
+	struct ath10k_generic_iter *ar_iter = data;
+	struct ieee80211_conf *conf = &ar_iter->ar->hw->conf;
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	enum wmi_sta_powersave_param param;
+	enum wmi_sta_ps_mode psmode;
+	int ret;
+
+	if (vif->type != NL80211_IFTYPE_STATION)
+		return;
+
+	if (conf->flags & IEEE80211_CONF_PS) {
+		psmode = WMI_STA_PS_MODE_ENABLED;
+		param = WMI_STA_PS_PARAM_INACTIVITY_TIME;
+
+		ret = ath10k_wmi_set_sta_ps_param(ar_iter->ar,
+						  arvif->vdev_id,
+						  param,
+						  conf->dynamic_ps_timeout);
+		if (ret) {
+			ath10k_warn("Failed to set inactivity time for VDEV: %d\n",
+				    arvif->vdev_id);
+			return;
+		}
+
+		ar_iter->ret = ret;
+	} else {
+		psmode = WMI_STA_PS_MODE_DISABLED;
+	}
+
+	ar_iter->ret = ath10k_wmi_set_psmode(ar_iter->ar, arvif->vdev_id,
+					     psmode);
+	if (ar_iter->ret)
+		ath10k_warn("Failed to set PS Mode: %d for VDEV: %d\n",
+			    psmode, arvif->vdev_id);
+	else
+		ath10k_dbg(ATH10K_DBG_MAC, "Set PS Mode: %d for VDEV: %d\n",
+			   psmode, arvif->vdev_id);
+}
+
+/**********************/
+/* Station management */
+/**********************/
+
+static void ath10k_peer_assoc_h_basic(struct ath10k *ar,
+				      struct ath10k_vif *arvif,
+				      struct ieee80211_sta *sta,
+				      struct ieee80211_bss_conf *bss_conf,
+				      struct wmi_peer_assoc_complete_arg *arg)
+{
+	memcpy(arg->addr, sta->addr, ETH_ALEN);
+	arg->vdev_id = arvif->vdev_id;
+	arg->peer_aid = sta->aid;
+	arg->peer_flags |= WMI_PEER_AUTH;
+
+	if (arvif->vdev_type == WMI_VDEV_TYPE_STA)
+		/*
+		 * Seems FW have problems with Power Save in STA
+		 * mode when we setup this parameter to high (eg. 5).
+		 * Often we see that FW don't send NULL (with clean P flags)
+		 * frame even there is info about buffered frames in beacons.
+		 * Sometimes we have to wait more than 10 seconds before FW
+		 * will wakeup. Often sending one ping from AP to our device
+		 * just fail (more than 50%).
+		 *
+		 * Seems setting this FW parameter to 1 couse FW
+		 * will check every beacon and will wakup immediately
+		 * after detection buffered data.
+		 */
+		arg->peer_listen_intval = 1;
+	else
+		arg->peer_listen_intval = ar->hw->conf.listen_interval;
+
+	arg->peer_num_spatial_streams = 1;
+
+	/*
+	 * The assoc capabilities are available only in managed mode.
+	 */
+	if (arvif->vdev_type == WMI_VDEV_TYPE_STA && bss_conf)
+		arg->peer_caps = bss_conf->assoc_capability;
+}
+
+static void ath10k_peer_assoc_h_crypto(struct ath10k *ar,
+				       struct ath10k_vif *arvif,
+				       struct wmi_peer_assoc_complete_arg *arg)
+{
+	struct ieee80211_vif *vif = arvif->vif;
+	struct ieee80211_bss_conf *info = &vif->bss_conf;
+	struct cfg80211_bss *bss;
+	const u8 *rsnie = NULL;
+	const u8 *wpaie = NULL;
+
+	bss = cfg80211_get_bss(ar->hw->wiphy, ar->hw->conf.chandef.chan,
+			       info->bssid, NULL, 0, 0, 0);
+	if (bss) {
+		const struct cfg80211_bss_ies *ies;
+
+		rcu_read_lock();
+		rsnie = ieee80211_bss_get_ie(bss, WLAN_EID_RSN);
+
+		ies = rcu_dereference(bss->ies);
+
+		wpaie = cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT,
+				WLAN_OUI_TYPE_MICROSOFT_WPA,
+				ies->data,
+				ies->len);
+		rcu_read_unlock();
+		cfg80211_put_bss(ar->hw->wiphy, bss);
+	}
+
+	/* FIXME: base on RSN IE/WPA IE is a correct idea? */
+	if (rsnie || wpaie) {
+		ath10k_dbg(ATH10K_DBG_WMI, "%s: rsn ie found\n", __func__);
+		arg->peer_flags |= WMI_PEER_NEED_PTK_4_WAY;
+	}
+
+	if (wpaie) {
+		ath10k_dbg(ATH10K_DBG_WMI, "%s: wpa ie found\n", __func__);
+		arg->peer_flags |= WMI_PEER_NEED_GTK_2_WAY;
+	}
+}
+
+static void ath10k_peer_assoc_h_rates(struct ath10k *ar,
+				      struct ieee80211_sta *sta,
+				      struct wmi_peer_assoc_complete_arg *arg)
+{
+	struct wmi_rate_set_arg *rateset = &arg->peer_legacy_rates;
+	const struct ieee80211_supported_band *sband;
+	const struct ieee80211_rate *rates;
+	u32 ratemask;
+	int i;
+
+	sband = ar->hw->wiphy->bands[ar->hw->conf.chandef.chan->band];
+	ratemask = sta->supp_rates[ar->hw->conf.chandef.chan->band];
+	rates = sband->bitrates;
+
+	rateset->num_rates = 0;
+
+	for (i = 0; i < 32; i++, ratemask >>= 1, rates++) {
+		if (!(ratemask & 1))
+			continue;
+
+		rateset->rates[rateset->num_rates] = rates->hw_value;
+		rateset->num_rates++;
+	}
+}
+
+static void ath10k_peer_assoc_h_ht(struct ath10k *ar,
+				   struct ieee80211_sta *sta,
+				   struct wmi_peer_assoc_complete_arg *arg)
+{
+	const struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
+	int smps;
+	int i, n;
+
+	if (!ht_cap->ht_supported)
+		return;
+
+	arg->peer_flags |= WMI_PEER_HT;
+	arg->peer_max_mpdu = (1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
+				    ht_cap->ampdu_factor)) - 1;
+
+	arg->peer_mpdu_density =
+		ath10k_parse_mpdudensity(ht_cap->ampdu_density);
+
+	arg->peer_ht_caps = ht_cap->cap;
+	arg->peer_rate_caps |= WMI_RC_HT_FLAG;
+
+	if (ht_cap->cap & IEEE80211_HT_CAP_LDPC_CODING)
+		arg->peer_flags |= WMI_PEER_LDPC;
+
+	if (sta->bandwidth >= IEEE80211_STA_RX_BW_40) {
+		arg->peer_flags |= WMI_PEER_40MHZ;
+		arg->peer_rate_caps |= WMI_RC_CW40_FLAG;
+	}
+
+	if (ht_cap->cap & IEEE80211_HT_CAP_SGI_20)
+		arg->peer_rate_caps |= WMI_RC_SGI_FLAG;
+
+	if (ht_cap->cap & IEEE80211_HT_CAP_SGI_40)
+		arg->peer_rate_caps |= WMI_RC_SGI_FLAG;
+
+	if (ht_cap->cap & IEEE80211_HT_CAP_TX_STBC) {
+		arg->peer_rate_caps |= WMI_RC_TX_STBC_FLAG;
+		arg->peer_flags |= WMI_PEER_STBC;
+	}
+
+	if (ht_cap->cap & IEEE80211_HT_CAP_RX_STBC) {
+		u32 stbc;
+		stbc = ht_cap->cap & IEEE80211_HT_CAP_RX_STBC;
+		stbc = stbc >> IEEE80211_HT_CAP_RX_STBC_SHIFT;
+		stbc = stbc << WMI_RC_RX_STBC_FLAG_S;
+		arg->peer_rate_caps |= stbc;
+		arg->peer_flags |= WMI_PEER_STBC;
+	}
+
+	smps = ht_cap->cap & IEEE80211_HT_CAP_SM_PS;
+	smps >>= IEEE80211_HT_CAP_SM_PS_SHIFT;
+
+	if (smps == WLAN_HT_CAP_SM_PS_STATIC) {
+		arg->peer_flags |= WMI_PEER_SPATIAL_MUX;
+		arg->peer_flags |= WMI_PEER_STATIC_MIMOPS;
+	} else if (smps == WLAN_HT_CAP_SM_PS_DYNAMIC) {
+		arg->peer_flags |= WMI_PEER_SPATIAL_MUX;
+		arg->peer_flags |= WMI_PEER_DYN_MIMOPS;
+	}
+
+	if (ht_cap->mcs.rx_mask[1] && ht_cap->mcs.rx_mask[2])
+		arg->peer_rate_caps |= WMI_RC_TS_FLAG;
+	else if (ht_cap->mcs.rx_mask[1])
+		arg->peer_rate_caps |= WMI_RC_DS_FLAG;
+
+	for (i = 0, n = 0; i < IEEE80211_HT_MCS_MASK_LEN*8; i++)
+		if (ht_cap->mcs.rx_mask[i/8] & (1 << i%8))
+			arg->peer_ht_rates.rates[n++] = i;
+
+	arg->peer_ht_rates.num_rates = n;
+	arg->peer_num_spatial_streams = max((n+7) / 8, 1);
+
+	ath10k_dbg(ATH10K_DBG_MAC, "mcs cnt %d nss %d\n",
+		   arg->peer_ht_rates.num_rates,
+		   arg->peer_num_spatial_streams);
+}
+
+static void ath10k_peer_assoc_h_qos_ap(struct ath10k *ar,
+				       struct ath10k_vif *arvif,
+				       struct ieee80211_sta *sta,
+				       struct ieee80211_bss_conf *bss_conf,
+				       struct wmi_peer_assoc_complete_arg *arg)
+{
+	u32 uapsd = 0;
+	u32 max_sp = 0;
+
+	if (sta->wme)
+		arg->peer_flags |= WMI_PEER_QOS;
+
+	if (sta->wme && sta->uapsd_queues) {
+		ath10k_dbg(ATH10K_DBG_MAC, "uapsd_queues: 0x%X, max_sp: %d\n",
+			   sta->uapsd_queues, sta->max_sp);
+
+		arg->peer_flags |= WMI_PEER_APSD;
+		arg->peer_flags |= WMI_RC_UAPSD_FLAG;
+
+		if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO)
+			uapsd |= WMI_AP_PS_UAPSD_AC3_DELIVERY_EN |
+				 WMI_AP_PS_UAPSD_AC3_TRIGGER_EN;
+		if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VI)
+			uapsd |= WMI_AP_PS_UAPSD_AC2_DELIVERY_EN |
+				 WMI_AP_PS_UAPSD_AC2_TRIGGER_EN;
+		if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BK)
+			uapsd |= WMI_AP_PS_UAPSD_AC1_DELIVERY_EN |
+				 WMI_AP_PS_UAPSD_AC1_TRIGGER_EN;
+		if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BE)
+			uapsd |= WMI_AP_PS_UAPSD_AC0_DELIVERY_EN |
+				 WMI_AP_PS_UAPSD_AC0_TRIGGER_EN;
+
+
+		if (sta->max_sp < MAX_WMI_AP_PS_PEER_PARAM_MAX_SP)
+			max_sp = sta->max_sp;
+
+		ath10k_wmi_set_ap_ps_param(ar, arvif->vdev_id,
+					   sta->addr,
+					   WMI_AP_PS_PEER_PARAM_UAPSD,
+					   uapsd);
+
+		ath10k_wmi_set_ap_ps_param(ar, arvif->vdev_id,
+					   sta->addr,
+					   WMI_AP_PS_PEER_PARAM_MAX_SP,
+					   max_sp);
+
+		/* TODO setup this based on STA listen interval and
+		   beacon interval. Currently we don't know
+		   sta->listen_interval - mac80211 patch required.
+		   Currently use 10 seconds */
+		ath10k_wmi_set_ap_ps_param(ar, arvif->vdev_id,
+					   sta->addr,
+					   WMI_AP_PS_PEER_PARAM_AGEOUT_TIME,
+					   10);
+	}
+}
+
+static void ath10k_peer_assoc_h_qos_sta(struct ath10k *ar,
+					struct ath10k_vif *arvif,
+					struct ieee80211_sta *sta,
+					struct ieee80211_bss_conf *bss_conf,
+					struct wmi_peer_assoc_complete_arg *arg)
+{
+	if (bss_conf->qos)
+		arg->peer_flags |= WMI_PEER_QOS;
+}
+
+static void ath10k_peer_assoc_h_vht(struct ath10k *ar,
+				    struct ieee80211_sta *sta,
+				    struct wmi_peer_assoc_complete_arg *arg)
+{
+	const struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap;
+
+	if (!vht_cap->vht_supported)
+		return;
+
+	arg->peer_flags |= WMI_PEER_VHT;
+
+	arg->peer_vht_caps = vht_cap->cap;
+
+	if (sta->bandwidth == IEEE80211_STA_RX_BW_80)
+		arg->peer_flags |= WMI_PEER_80MHZ;
+
+	arg->peer_vht_rates.rx_max_rate =
+		__le16_to_cpu(vht_cap->vht_mcs.rx_highest);
+	arg->peer_vht_rates.rx_mcs_set =
+		__le16_to_cpu(vht_cap->vht_mcs.rx_mcs_map);
+	arg->peer_vht_rates.tx_max_rate =
+		__le16_to_cpu(vht_cap->vht_mcs.tx_highest);
+	arg->peer_vht_rates.tx_mcs_set =
+		__le16_to_cpu(vht_cap->vht_mcs.tx_mcs_map);
+
+	ath10k_dbg(ATH10K_DBG_MAC, "mac vht peer\n");
+}
+
+static void ath10k_peer_assoc_h_qos(struct ath10k *ar,
+				    struct ath10k_vif *arvif,
+				    struct ieee80211_sta *sta,
+				    struct ieee80211_bss_conf *bss_conf,
+				    struct wmi_peer_assoc_complete_arg *arg)
+{
+	switch (arvif->vdev_type) {
+	case WMI_VDEV_TYPE_AP:
+		ath10k_peer_assoc_h_qos_ap(ar, arvif, sta, bss_conf, arg);
+		break;
+	case WMI_VDEV_TYPE_STA:
+		ath10k_peer_assoc_h_qos_sta(ar, arvif, sta, bss_conf, arg);
+		break;
+	default:
+		break;
+	}
+}
+
+static void ath10k_peer_assoc_h_phymode(struct ath10k *ar,
+					struct ath10k_vif *arvif,
+					struct ieee80211_sta *sta,
+					struct wmi_peer_assoc_complete_arg *arg)
+{
+	enum wmi_phy_mode phymode = MODE_UNKNOWN;
+
+	/* FIXME: add VHT */
+
+	switch (ar->hw->conf.chandef.chan->band) {
+	case IEEE80211_BAND_2GHZ:
+		if (sta->ht_cap.ht_supported) {
+			if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
+				phymode = MODE_11NG_HT40;
+			else
+				phymode = MODE_11NG_HT20;
+		} else {
+			phymode = MODE_11G;
+		}
+
+		break;
+	case IEEE80211_BAND_5GHZ:
+		if (sta->ht_cap.ht_supported) {
+			if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
+				phymode = MODE_11NA_HT40;
+			else
+				phymode = MODE_11NA_HT20;
+		} else {
+			phymode = MODE_11A;
+		}
+
+		break;
+	default:
+		break;
+	}
+
+	arg->peer_phymode = phymode;
+	WARN_ON(phymode == MODE_UNKNOWN);
+}
+
+static int ath10k_peer_assoc(struct ath10k *ar,
+			     struct ath10k_vif *arvif,
+			     struct ieee80211_sta *sta,
+			     struct ieee80211_bss_conf *bss_conf)
+{
+	struct wmi_peer_assoc_complete_arg arg;
+
+	memset(&arg, 0, sizeof(struct wmi_peer_assoc_complete_arg));
+
+	ath10k_peer_assoc_h_basic(ar, arvif, sta, bss_conf, &arg);
+	ath10k_peer_assoc_h_crypto(ar, arvif, &arg);
+	ath10k_peer_assoc_h_rates(ar, sta, &arg);
+	ath10k_peer_assoc_h_ht(ar, sta, &arg);
+	ath10k_peer_assoc_h_vht(ar, sta, &arg);
+	ath10k_peer_assoc_h_qos(ar, arvif, sta, bss_conf, &arg);
+	ath10k_peer_assoc_h_phymode(ar, arvif, sta, &arg);
+
+	return ath10k_wmi_peer_assoc(ar, &arg);
+}
+
+/* can be called only in mac80211 callbacks due to `key_count` usage */
+static void ath10k_bss_assoc(struct ieee80211_hw *hw,
+			     struct ieee80211_vif *vif,
+			     struct ieee80211_bss_conf *bss_conf)
+{
+	struct ath10k *ar = hw->priv;
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	struct ieee80211_sta *ap_sta;
+	int ret;
+
+	rcu_read_lock();
+
+	ap_sta = ieee80211_find_sta(vif, bss_conf->bssid);
+	if (!ap_sta) {
+		ath10k_warn("Failed to find station entry for %pM\n",
+			    bss_conf->bssid);
+		rcu_read_unlock();
+		return;
+	}
+
+	ret = ath10k_peer_assoc(ar, arvif, ap_sta, bss_conf);
+	if (ret) {
+		ath10k_warn("Peer assoc failed for %pM\n", bss_conf->bssid);
+		rcu_read_unlock();
+		return;
+	}
+
+	rcu_read_unlock();
+
+	ret = ath10k_wmi_vdev_up(ar, arvif->vdev_id, bss_conf->aid,
+				 bss_conf->bssid);
+	if (ret)
+		ath10k_warn("VDEV: %d up failed: ret %d\n",
+			    arvif->vdev_id, ret);
+	else
+		ath10k_dbg(ATH10K_DBG_MAC,
+			   "VDEV: %d associated, BSSID: %pM, AID: %d\n",
+			   arvif->vdev_id, bss_conf->bssid, bss_conf->aid);
+}
+
+/*
+ * FIXME: flush TIDs
+ */
+static void ath10k_bss_disassoc(struct ieee80211_hw *hw,
+				struct ieee80211_vif *vif)
+{
+	struct ath10k *ar = hw->priv;
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	int ret;
+
+	/*
+	 * For some reason, calling VDEV-DOWN before VDEV-STOP
+	 * makes the FW to send frames via HTT after disassociation.
+	 * No idea why this happens, even though VDEV-DOWN is supposed
+	 * to be analogous to link down, so just stop the VDEV.
+	 */
+	ret = ath10k_vdev_stop(arvif);
+	if (!ret)
+		ath10k_dbg(ATH10K_DBG_MAC, "VDEV: %d stopped\n",
+			   arvif->vdev_id);
+
+	/*
+	 * If we don't call VDEV-DOWN after VDEV-STOP FW will remain active and
+	 * report beacons from previously associated network through HTT.
+	 * This in turn would spam mac80211 WARN_ON if we bring down all
+	 * interfaces as it expects there is no rx when no interface is
+	 * running.
+	 */
+	ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
+	if (ret)
+		ath10k_dbg(ATH10K_DBG_MAC, "VDEV: %d ath10k_wmi_vdev_down failed (%d)\n",
+			   arvif->vdev_id, ret);
+
+	ath10k_wmi_flush_tx(ar);
+
+	arvif->def_wep_key_index = 0;
+}
+
+static int ath10k_station_assoc(struct ath10k *ar, struct ath10k_vif *arvif,
+				struct ieee80211_sta *sta)
+{
+	int ret = 0;
+
+	ret = ath10k_peer_assoc(ar, arvif, sta, NULL);
+	if (ret) {
+		ath10k_warn("WMI peer assoc failed for %pM\n", sta->addr);
+		return ret;
+	}
+
+	ret = ath10k_install_peer_wep_keys(arvif, sta->addr);
+	if (ret) {
+		ath10k_warn("could not install peer wep keys (%d)\n", ret);
+		return ret;
+	}
+
+	return ret;
+}
+
+static int ath10k_station_disassoc(struct ath10k *ar, struct ath10k_vif *arvif,
+				   struct ieee80211_sta *sta)
+{
+	int ret = 0;
+
+	ret = ath10k_clear_peer_keys(arvif, sta->addr);
+	if (ret) {
+		ath10k_warn("could not clear all peer wep keys (%d)\n", ret);
+		return ret;
+	}
+
+	return ret;
+}
+
+/**************/
+/* Regulatory */
+/**************/
+
+static int ath10k_update_channel_list(struct ath10k *ar)
+{
+	struct ieee80211_hw *hw = ar->hw;
+	struct ieee80211_supported_band **bands;
+	enum ieee80211_band band;
+	struct ieee80211_channel *channel;
+	struct wmi_scan_chan_list_arg arg = {0};
+	struct wmi_channel_arg *ch;
+	bool passive;
+	int len;
+	int ret;
+	int i;
+
+	bands = hw->wiphy->bands;
+	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
+		if (!bands[band])
+			continue;
+
+		for (i = 0; i < bands[band]->n_channels; i++) {
+			if (bands[band]->channels[i].flags &
+			    IEEE80211_CHAN_DISABLED)
+				continue;
+
+			arg.n_channels++;
+		}
+	}
+
+	len = sizeof(struct wmi_channel_arg) * arg.n_channels;
+	arg.channels = kzalloc(len, GFP_KERNEL);
+	if (!arg.channels)
+		return -ENOMEM;
+
+	ch = arg.channels;
+	for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
+		if (!bands[band])
+			continue;
+
+		for (i = 0; i < bands[band]->n_channels; i++) {
+			channel = &bands[band]->channels[i];
+
+			if (channel->flags & IEEE80211_CHAN_DISABLED)
+				continue;
+
+			ch->allow_ht   = true;
+
+			/* FIXME: when should we really allow VHT? */
+			ch->allow_vht = true;
+
+			ch->allow_ibss =
+				!(channel->flags & IEEE80211_CHAN_NO_IBSS);
+
+			ch->ht40plus =
+				!(channel->flags & IEEE80211_CHAN_NO_HT40PLUS);
+
+			passive = channel->flags & IEEE80211_CHAN_PASSIVE_SCAN;
+			ch->passive = passive;
+
+			ch->freq = channel->center_freq;
+			ch->min_power = channel->max_power * 3;
+			ch->max_power = channel->max_power * 4;
+			ch->max_reg_power = channel->max_reg_power * 4;
+			ch->max_antenna_gain = channel->max_antenna_gain;
+			ch->reg_class_id = 0; /* FIXME */
+
+			/* FIXME: why use only legacy modes, why not any
+			 * HT/VHT modes? Would that even make any
+			 * difference? */
+			if (channel->band == IEEE80211_BAND_2GHZ)
+				ch->mode = MODE_11G;
+			else
+				ch->mode = MODE_11A;
+
+			if (WARN_ON_ONCE(ch->mode == MODE_UNKNOWN))
+				continue;
+
+			ath10k_dbg(ATH10K_DBG_WMI,
+				   "%s: [%zd/%d] freq %d maxpower %d regpower %d antenna %d mode %d\n",
+				   __func__, ch - arg.channels, arg.n_channels,
+				   ch->freq, ch->max_power, ch->max_reg_power,
+				   ch->max_antenna_gain, ch->mode);
+
+			ch++;
+		}
+	}
+
+	ret = ath10k_wmi_scan_chan_list(ar, &arg);
+	kfree(arg.channels);
+
+	return ret;
+}
+
+static void ath10k_reg_notifier(struct wiphy *wiphy,
+				struct regulatory_request *request)
+{
+	struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
+	struct reg_dmn_pair_mapping *regpair;
+	struct ath10k *ar = hw->priv;
+	int ret;
+
+	ath_reg_notifier_apply(wiphy, request, &ar->ath_common.regulatory);
+
+	ret = ath10k_update_channel_list(ar);
+	if (ret)
+		ath10k_warn("could not update channel list (%d)\n", ret);
+
+	regpair = ar->ath_common.regulatory.regpair;
+	/* Target allows setting up per-band regdomain but ath_common provides
+	 * a combined one only */
+	ret = ath10k_wmi_pdev_set_regdomain(ar,
+					    regpair->regDmnEnum,
+					    regpair->regDmnEnum, /* 2ghz */
+					    regpair->regDmnEnum, /* 5ghz */
+					    regpair->reg_2ghz_ctl,
+					    regpair->reg_5ghz_ctl);
+	if (ret)
+		ath10k_warn("could not set pdev regdomain (%d)\n", ret);
+}
+
+/***************/
+/* TX handlers */
+/***************/
+
+/*
+ * Frames sent to the FW have to be in "Native Wifi" format.
+ * Strip the QoS field from the 802.11 header.
+ */
+static void ath10k_tx_h_qos_workaround(struct ieee80211_hw *hw,
+				       struct ieee80211_tx_control *control,
+				       struct sk_buff *skb)
+{
+	struct ieee80211_hdr *hdr = (void *)skb->data;
+	u8 *qos_ctl;
+
+	if (!ieee80211_is_data_qos(hdr->frame_control))
+		return;
+
+	qos_ctl = ieee80211_get_qos_ctl(hdr);
+	memmove(qos_ctl, qos_ctl + IEEE80211_QOS_CTL_LEN,
+		skb->len - ieee80211_hdrlen(hdr->frame_control));
+	skb_trim(skb, skb->len - IEEE80211_QOS_CTL_LEN);
+}
+
+static void ath10k_tx_h_update_wep_key(struct sk_buff *skb)
+{
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+	struct ieee80211_vif *vif = info->control.vif;
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	struct ath10k *ar = arvif->ar;
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+	struct ieee80211_key_conf *key = info->control.hw_key;
+	int ret;
+
+	/* TODO AP mode should be implemented */
+	if (vif->type != NL80211_IFTYPE_STATION)
+		return;
+
+	if (!ieee80211_has_protected(hdr->frame_control))
+		return;
+
+	if (!key)
+		return;
+
+	if (key->cipher != WLAN_CIPHER_SUITE_WEP40 &&
+	    key->cipher != WLAN_CIPHER_SUITE_WEP104)
+		return;
+
+	if (key->keyidx == arvif->def_wep_key_index)
+		return;
+
+	ath10k_dbg(ATH10K_DBG_MAC, "new wep keyidx will be %d\n", key->keyidx);
+
+	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
+					WMI_VDEV_PARAM_DEF_KEYID,
+					key->keyidx);
+	if (ret) {
+		ath10k_warn("could not update wep keyidx (%d)\n", ret);
+		return;
+	}
+
+	arvif->def_wep_key_index = key->keyidx;
+}
+
+static void ath10k_tx_h_add_p2p_noa_ie(struct ath10k *ar, struct sk_buff *skb)
+{
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+	struct ieee80211_vif *vif = info->control.vif;
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+
+	/* This is case only for P2P_GO */
+	if (arvif->vdev_type != WMI_VDEV_TYPE_AP ||
+	    arvif->vdev_subtype != WMI_VDEV_SUBTYPE_P2P_GO)
+		return;
+
+	if (unlikely(ieee80211_is_probe_resp(hdr->frame_control))) {
+		spin_lock_bh(&ar->data_lock);
+		if (arvif->u.ap.noa_data)
+			if (!pskb_expand_head(skb, 0, arvif->u.ap.noa_len,
+					      GFP_ATOMIC))
+				memcpy(skb_put(skb, arvif->u.ap.noa_len),
+				       arvif->u.ap.noa_data,
+				       arvif->u.ap.noa_len);
+		spin_unlock_bh(&ar->data_lock);
+	}
+}
+
+static void ath10k_tx_htt(struct ath10k *ar, struct sk_buff *skb)
+{
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+	int ret;
+
+	if (ieee80211_is_mgmt(hdr->frame_control))
+		ret = ath10k_htt_mgmt_tx(ar->htt, skb);
+	else if (ieee80211_is_nullfunc(hdr->frame_control))
+		/* FW does not report tx status properly for NullFunc frames
+		 * unless they are sent through mgmt tx path. mac80211 sends
+		 * those frames when it detects link/beacon loss and depends on
+		 * the tx status to be correct. */
+		ret = ath10k_htt_mgmt_tx(ar->htt, skb);
+	else
+		ret = ath10k_htt_tx(ar->htt, skb);
+
+	if (ret) {
+		ath10k_warn("tx failed (%d). dropping packet.\n", ret);
+		ieee80211_free_txskb(ar->hw, skb);
+	}
+}
+
+void ath10k_offchan_tx_purge(struct ath10k *ar)
+{
+	struct sk_buff *skb;
+
+	for (;;) {
+		skb = skb_dequeue(&ar->offchan_tx_queue);
+		if (!skb)
+			break;
+
+		ieee80211_free_txskb(ar->hw, skb);
+	}
+}
+
+void ath10k_offchan_tx_work(struct work_struct *work)
+{
+	struct ath10k *ar = container_of(work, struct ath10k, offchan_tx_work);
+	struct ath10k_peer *peer;
+	struct ieee80211_hdr *hdr;
+	struct sk_buff *skb;
+	const u8 *peer_addr;
+	int vdev_id;
+	int ret;
+
+	/* FW requirement: We must create a peer before FW will send out
+	 * an offchannel frame. Otherwise the frame will be stuck and
+	 * never transmitted. We delete the peer upon tx completion.
+	 * It is unlikely that a peer for offchannel tx will already be
+	 * present. However it may be in some rare cases so account for that.
+	 * Otherwise we might remove a legitimate peer and break stuff. */
+
+	for (;;) {
+		skb = skb_dequeue(&ar->offchan_tx_queue);
+		if (!skb)
+			break;
+
+		mutex_lock(&ar->conf_mutex);
+
+		ath10k_dbg(ATH10K_DBG_MAC, "processing offchannel skb %p\n",
+			   skb);
+
+		hdr = (struct ieee80211_hdr *)skb->data;
+		peer_addr = ieee80211_get_DA(hdr);
+		vdev_id = ATH10K_SKB_CB(skb)->htt.vdev_id;
+
+		spin_lock_bh(&ar->data_lock);
+		peer = ath10k_peer_find(ar, vdev_id, peer_addr);
+		spin_unlock_bh(&ar->data_lock);
+
+		if (peer)
+			ath10k_dbg(ATH10K_DBG_MAC, "peer %pM on vdev %d already present\n",
+				   peer_addr, vdev_id);
+
+		if (!peer) {
+			ret = ath10k_peer_create(ar, vdev_id, peer_addr);
+			if (ret)
+				ath10k_warn("peer %pM on vdev %d not created (%d)\n",
+					    peer_addr, vdev_id, ret);
+		}
+
+		spin_lock_bh(&ar->data_lock);
+		INIT_COMPLETION(ar->offchan_tx_completed);
+		ar->offchan_tx_skb = skb;
+		spin_unlock_bh(&ar->data_lock);
+
+		ath10k_tx_htt(ar, skb);
+
+		ret = wait_for_completion_timeout(&ar->offchan_tx_completed,
+						  3 * HZ);
+		if (ret <= 0)
+			ath10k_warn("timed out waiting for offchannel skb %p\n",
+				    skb);
+
+		if (!peer) {
+			ret = ath10k_peer_delete(ar, vdev_id, peer_addr);
+			if (ret)
+				ath10k_warn("peer %pM on vdev %d not deleted (%d)\n",
+					    peer_addr, vdev_id, ret);
+		}
+
+		mutex_unlock(&ar->conf_mutex);
+	}
+}
+
+/************/
+/* Scanning */
+/************/
+
+/*
+ * This gets called if we dont get a heart-beat during scan.
+ * This may indicate the FW has hung and we need to abort the
+ * scan manually to prevent cancel_hw_scan() from deadlocking
+ */
+void ath10k_reset_scan(unsigned long ptr)
+{
+	struct ath10k *ar = (struct ath10k *)ptr;
+
+	spin_lock_bh(&ar->data_lock);
+	if (!ar->scan.in_progress) {
+		spin_unlock_bh(&ar->data_lock);
+		return;
+	}
+
+	ath10k_warn("scan timeout. resetting. fw issue?\n");
+
+	if (ar->scan.is_roc)
+		ieee80211_remain_on_channel_expired(ar->hw);
+	else
+		ieee80211_scan_completed(ar->hw, 1 /* aborted */);
+
+	ar->scan.in_progress = false;
+	complete_all(&ar->scan.completed);
+	spin_unlock_bh(&ar->data_lock);
+}
+
+static int ath10k_abort_scan(struct ath10k *ar)
+{
+	struct wmi_stop_scan_arg arg = {
+		.req_id = 1, /* FIXME */
+		.req_type = WMI_SCAN_STOP_ONE,
+		.u.scan_id = ATH10K_SCAN_ID,
+	};
+	int ret;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	del_timer_sync(&ar->scan.timeout);
+
+	spin_lock_bh(&ar->data_lock);
+	if (!ar->scan.in_progress) {
+		spin_unlock_bh(&ar->data_lock);
+		return 0;
+	}
+
+	ar->scan.aborting = true;
+	spin_unlock_bh(&ar->data_lock);
+
+	ret = ath10k_wmi_stop_scan(ar, &arg);
+	if (ret) {
+		ath10k_warn("could not submit wmi stop scan (%d)\n", ret);
+		return -EIO;
+	}
+
+	ath10k_wmi_flush_tx(ar);
+
+	ret = wait_for_completion_timeout(&ar->scan.completed, 3*HZ);
+	if (ret == 0)
+		ath10k_warn("timed out while waiting for scan to stop\n");
+
+	/* scan completion may be done right after we timeout here, so let's
+	 * check the in_progress and tell mac80211 scan is completed. if we
+	 * don't do that and FW fails to send us scan completion indication
+	 * then userspace won't be able to scan anymore */
+	ret = 0;
+
+	spin_lock_bh(&ar->data_lock);
+	if (ar->scan.in_progress) {
+		ath10k_warn("could not stop scan. its still in progress\n");
+		ar->scan.in_progress = false;
+		ath10k_offchan_tx_purge(ar);
+		ret = -ETIMEDOUT;
+	}
+	spin_unlock_bh(&ar->data_lock);
+
+	return ret;
+}
+
+static int ath10k_start_scan(struct ath10k *ar,
+			     const struct wmi_start_scan_arg *arg)
+{
+	int ret;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	ret = ath10k_wmi_start_scan(ar, arg);
+	if (ret)
+		return ret;
+
+	/* make sure we submit the command so the completion
+	* timeout makes sense */
+	ath10k_wmi_flush_tx(ar);
+
+	ret = wait_for_completion_timeout(&ar->scan.started, 1*HZ);
+	if (ret == 0) {
+		ath10k_abort_scan(ar);
+		return ret;
+	}
+
+	/* the scan can complete earlier, before we even
+	 * start the timer. in that case the timer handler
+	 * checks ar->scan.in_progress and bails out if its
+	 * false. Add a 200ms margin to account event/command
+	 * processing. */
+	mod_timer(&ar->scan.timeout, jiffies +
+		  msecs_to_jiffies(arg->max_scan_time+200));
+	return 0;
+}
+
+/**********************/
+/* mac80211 callbacks */
+/**********************/
+
+static void ath10k_tx(struct ieee80211_hw *hw,
+		      struct ieee80211_tx_control *control,
+		      struct sk_buff *skb)
+{
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+	struct ath10k *ar = hw->priv;
+	struct ath10k_vif *arvif = NULL;
+	u32 vdev_id = 0;
+	u8 tid;
+
+	if (info->control.vif) {
+		arvif = ath10k_vif_to_arvif(info->control.vif);
+		vdev_id = arvif->vdev_id;
+	} else if (ar->monitor_enabled) {
+		vdev_id = ar->monitor_vdev_id;
+	}
+
+	/* We should disable CCK RATE due to P2P */
+	if (info->flags & IEEE80211_TX_CTL_NO_CCK_RATE)
+		ath10k_dbg(ATH10K_DBG_MAC, "IEEE80211_TX_CTL_NO_CCK_RATE\n");
+
+	/* we must calculate tid before we apply qos workaround
+	 * as we'd lose the qos control field */
+	tid = HTT_DATA_TX_EXT_TID_NON_QOS_MCAST_BCAST;
+	if (ieee80211_is_data_qos(hdr->frame_control) &&
+	    is_unicast_ether_addr(ieee80211_get_DA(hdr))) {
+		u8 *qc = ieee80211_get_qos_ctl(hdr);
+		tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
+	}
+
+	ath10k_tx_h_qos_workaround(hw, control, skb);
+	ath10k_tx_h_update_wep_key(skb);
+	ath10k_tx_h_add_p2p_noa_ie(ar, skb);
+	ath10k_tx_h_seq_no(skb);
+
+	memset(ATH10K_SKB_CB(skb), 0, sizeof(*ATH10K_SKB_CB(skb)));
+	ATH10K_SKB_CB(skb)->htt.vdev_id = vdev_id;
+	ATH10K_SKB_CB(skb)->htt.tid = tid;
+
+	if (info->flags & IEEE80211_TX_CTL_TX_OFFCHAN) {
+		spin_lock_bh(&ar->data_lock);
+		ATH10K_SKB_CB(skb)->htt.is_offchan = true;
+		ATH10K_SKB_CB(skb)->htt.vdev_id = ar->scan.vdev_id;
+		spin_unlock_bh(&ar->data_lock);
+
+		ath10k_dbg(ATH10K_DBG_MAC, "queued offchannel skb %p\n", skb);
+
+		skb_queue_tail(&ar->offchan_tx_queue, skb);
+		ieee80211_queue_work(hw, &ar->offchan_tx_work);
+		return;
+	}
+
+	ath10k_tx_htt(ar, skb);
+}
+
+/*
+ * Initialize various parameters with default vaules.
+ */
+static int ath10k_start(struct ieee80211_hw *hw)
+{
+	struct ath10k *ar = hw->priv;
+	int ret;
+
+	ret = ath10k_wmi_pdev_set_param(ar, WMI_PDEV_PARAM_PMF_QOS, 1);
+	if (ret)
+		ath10k_warn("could not enable WMI_PDEV_PARAM_PMF_QOS (%d)\n",
+			    ret);
+
+	ret = ath10k_wmi_pdev_set_param(ar, WMI_PDEV_PARAM_DYNAMIC_BW, 0);
+	if (ret)
+		ath10k_warn("could not init WMI_PDEV_PARAM_DYNAMIC_BW (%d)\n",
+			    ret);
+
+	return 0;
+}
+
+static void ath10k_stop(struct ieee80211_hw *hw)
+{
+	struct ath10k *ar = hw->priv;
+
+	/* avoid leaks in case FW never confirms scan for offchannel */
+	cancel_work_sync(&ar->offchan_tx_work);
+	ath10k_offchan_tx_purge(ar);
+}
+
+static int ath10k_config(struct ieee80211_hw *hw, u32 changed)
+{
+	struct ath10k_generic_iter ar_iter;
+	struct ath10k *ar = hw->priv;
+	struct ieee80211_conf *conf = &hw->conf;
+	int ret = 0;
+	u32 flags;
+
+	mutex_lock(&ar->conf_mutex);
+
+	if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
+		ath10k_dbg(ATH10K_DBG_MAC, "Config channel %d mhz\n",
+			   conf->chandef.chan->center_freq);
+		spin_lock_bh(&ar->data_lock);
+		ar->rx_channel = conf->chandef.chan;
+		spin_unlock_bh(&ar->data_lock);
+	}
+
+	if (changed & IEEE80211_CONF_CHANGE_PS) {
+		memset(&ar_iter, 0, sizeof(struct ath10k_generic_iter));
+		ar_iter.ar = ar;
+		flags = IEEE80211_IFACE_ITER_RESUME_ALL;
+
+		ieee80211_iterate_active_interfaces_atomic(hw,
+							   flags,
+							   ath10k_ps_iter,
+							   &ar_iter);
+
+		ret = ar_iter.ret;
+	}
+
+	if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
+		if (conf->flags & IEEE80211_CONF_MONITOR)
+			ret = ath10k_monitor_create(ar);
+		else
+			ret = ath10k_monitor_destroy(ar);
+	}
+
+	mutex_unlock(&ar->conf_mutex);
+	return ret;
+}
+
+/*
+ * TODO:
+ * Figure out how to handle WMI_VDEV_SUBTYPE_P2P_DEVICE,
+ * because we will send mgmt frames without CCK. This requirement
+ * for P2P_FIND/GO_NEG should be handled by checking CCK flag
+ * in the TX packet.
+ */
+static int ath10k_add_interface(struct ieee80211_hw *hw,
+				struct ieee80211_vif *vif)
+{
+	struct ath10k *ar = hw->priv;
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	enum wmi_sta_powersave_param param;
+	int ret = 0;
+	u32 value;
+	int bit;
+
+	mutex_lock(&ar->conf_mutex);
+
+	arvif->ar = ar;
+	arvif->vif = vif;
+
+	if ((vif->type == NL80211_IFTYPE_MONITOR) && ar->monitor_present) {
+		ath10k_warn("Only one monitor interface allowed\n");
+		ret = -EBUSY;
+		goto exit;
+	}
+
+	bit = ffs(ar->free_vdev_map);
+	if (bit == 0) {
+		ret = -EBUSY;
+		goto exit;
+	}
+
+	arvif->vdev_id = bit - 1;
+	arvif->vdev_subtype = WMI_VDEV_SUBTYPE_NONE;
+	ar->free_vdev_map &= ~(1 << arvif->vdev_id);
+
+	if (ar->p2p)
+		arvif->vdev_subtype = WMI_VDEV_SUBTYPE_P2P_DEVICE;
+
+	switch (vif->type) {
+	case NL80211_IFTYPE_UNSPECIFIED:
+	case NL80211_IFTYPE_STATION:
+		arvif->vdev_type = WMI_VDEV_TYPE_STA;
+		if (vif->p2p)
+			arvif->vdev_subtype = WMI_VDEV_SUBTYPE_P2P_CLIENT;
+		break;
+	case NL80211_IFTYPE_ADHOC:
+		arvif->vdev_type = WMI_VDEV_TYPE_IBSS;
+		break;
+	case NL80211_IFTYPE_AP:
+		arvif->vdev_type = WMI_VDEV_TYPE_AP;
+
+		if (vif->p2p)
+			arvif->vdev_subtype = WMI_VDEV_SUBTYPE_P2P_GO;
+		break;
+	case NL80211_IFTYPE_MONITOR:
+		arvif->vdev_type = WMI_VDEV_TYPE_MONITOR;
+		break;
+	default:
+		WARN_ON(1);
+		break;
+	}
+
+	ath10k_dbg(ATH10K_DBG_MAC, "Add interface: id %d type %d subtype %d\n",
+		   arvif->vdev_id, arvif->vdev_type, arvif->vdev_subtype);
+
+	ret = ath10k_wmi_vdev_create(ar, arvif->vdev_id, arvif->vdev_type,
+				     arvif->vdev_subtype, vif->addr);
+	if (ret) {
+		ath10k_warn("WMI vdev create failed: ret %d\n", ret);
+		goto exit;
+	}
+
+	ret = ath10k_wmi_vdev_set_param(ar, 0, WMI_VDEV_PARAM_DEF_KEYID,
+					arvif->def_wep_key_index);
+	if (ret)
+		ath10k_warn("Failed to set default keyid: %d\n", ret);
+
+	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
+					WMI_VDEV_PARAM_TX_ENCAP_TYPE,
+					ATH10K_HW_TXRX_NATIVE_WIFI);
+	if (ret)
+		ath10k_warn("Failed to set TX encap: %d\n", ret);
+
+	if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
+		ret = ath10k_peer_create(ar, arvif->vdev_id, vif->addr);
+		if (ret) {
+			ath10k_warn("Failed to create peer for AP: %d\n", ret);
+			goto exit;
+		}
+	}
+
+	if (arvif->vdev_type == WMI_VDEV_TYPE_STA) {
+		param = WMI_STA_PS_PARAM_RX_WAKE_POLICY;
+		value = WMI_STA_PS_RX_WAKE_POLICY_WAKE;
+		ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
+						  param, value);
+		if (ret)
+			ath10k_warn("Failed to set RX wake policy: %d\n", ret);
+
+		param = WMI_STA_PS_PARAM_TX_WAKE_THRESHOLD;
+		value = WMI_STA_PS_TX_WAKE_THRESHOLD_ALWAYS;
+		ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
+						  param, value);
+		if (ret)
+			ath10k_warn("Failed to set TX wake thresh: %d\n", ret);
+
+		param = WMI_STA_PS_PARAM_PSPOLL_COUNT;
+		value = WMI_STA_PS_PSPOLL_COUNT_NO_MAX;
+		ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
+						  param, value);
+		if (ret)
+			ath10k_warn("Failed to set PSPOLL count: %d\n", ret);
+	}
+
+	if (arvif->vdev_type == WMI_VDEV_TYPE_MONITOR)
+		ar->monitor_present = true;
+
+exit:
+	mutex_unlock(&ar->conf_mutex);
+	return ret;
+}
+
+static void ath10k_remove_interface(struct ieee80211_hw *hw,
+				    struct ieee80211_vif *vif)
+{
+	struct ath10k *ar = hw->priv;
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	int ret;
+
+	mutex_lock(&ar->conf_mutex);
+
+	ath10k_dbg(ATH10K_DBG_MAC, "Remove interface: id %d\n", arvif->vdev_id);
+
+	ar->free_vdev_map |= 1 << (arvif->vdev_id);
+
+	if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
+		ret = ath10k_peer_delete(arvif->ar, arvif->vdev_id, vif->addr);
+		if (ret)
+			ath10k_warn("Failed to remove peer for AP: %d\n", ret);
+
+		kfree(arvif->u.ap.noa_data);
+	}
+
+	ret = ath10k_wmi_vdev_delete(ar, arvif->vdev_id);
+	if (ret)
+		ath10k_warn("WMI vdev delete failed: %d\n", ret);
+
+	if (arvif->vdev_type == WMI_VDEV_TYPE_MONITOR)
+		ar->monitor_present = false;
+
+	ath10k_peer_cleanup(ar, arvif->vdev_id);
+
+	mutex_unlock(&ar->conf_mutex);
+}
+
+/*
+ * FIXME: Has to be verified.
+ */
+#define SUPPORTED_FILTERS			\
+	(FIF_PROMISC_IN_BSS |			\
+	FIF_ALLMULTI |				\
+	FIF_CONTROL |				\
+	FIF_PSPOLL |				\
+	FIF_OTHER_BSS |				\
+	FIF_BCN_PRBRESP_PROMISC |		\
+	FIF_PROBE_REQ |				\
+	FIF_FCSFAIL)
+
+static void ath10k_configure_filter(struct ieee80211_hw *hw,
+				    unsigned int changed_flags,
+				    unsigned int *total_flags,
+				    u64 multicast)
+{
+	struct ath10k *ar = hw->priv;
+	int ret;
+
+	mutex_lock(&ar->conf_mutex);
+
+	changed_flags &= SUPPORTED_FILTERS;
+	*total_flags &= SUPPORTED_FILTERS;
+	ar->filter_flags = *total_flags;
+
+	if ((ar->filter_flags & FIF_PROMISC_IN_BSS) &&
+	    !ar->monitor_enabled) {
+		ret = ath10k_monitor_start(ar, ar->monitor_vdev_id);
+		if (ret)
+			ath10k_warn("Unable to start monitor mode\n");
+		else
+			ath10k_dbg(ATH10K_DBG_MAC, "Monitor mode started\n");
+	} else if (!(ar->filter_flags & FIF_PROMISC_IN_BSS) &&
+		   ar->monitor_enabled) {
+		ret = ath10k_monitor_stop(ar);
+		if (ret)
+			ath10k_warn("Unable to stop monitor mode\n");
+		else
+			ath10k_dbg(ATH10K_DBG_MAC, "Monitor mode stopped\n");
+	}
+
+	mutex_unlock(&ar->conf_mutex);
+}
+
+static void ath10k_bss_info_changed(struct ieee80211_hw *hw,
+				    struct ieee80211_vif *vif,
+				    struct ieee80211_bss_conf *info,
+				    u32 changed)
+{
+	struct ath10k *ar = hw->priv;
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	int ret = 0;
+
+	mutex_lock(&ar->conf_mutex);
+
+	if (changed & BSS_CHANGED_IBSS)
+		ath10k_control_ibss(arvif, info, vif->addr);
+
+	if (changed & BSS_CHANGED_BEACON_INT) {
+		arvif->beacon_interval = info->beacon_int;
+		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
+						WMI_VDEV_PARAM_BEACON_INTERVAL,
+						arvif->beacon_interval);
+		if (ret)
+			ath10k_warn("Failed to set beacon interval for VDEV: %d\n",
+				    arvif->vdev_id);
+		else
+			ath10k_dbg(ATH10K_DBG_MAC,
+				   "Beacon interval: %d set for VDEV: %d\n",
+				   arvif->beacon_interval, arvif->vdev_id);
+	}
+
+	if (changed & BSS_CHANGED_BEACON) {
+		ret = ath10k_wmi_pdev_set_param(ar,
+						WMI_PDEV_PARAM_BEACON_TX_MODE,
+						WMI_BEACON_STAGGERED_MODE);
+		if (ret)
+			ath10k_warn("Failed to set beacon mode for VDEV: %d\n",
+				    arvif->vdev_id);
+		else
+			ath10k_dbg(ATH10K_DBG_MAC,
+				   "Set staggered beacon mode for VDEV: %d\n",
+				   arvif->vdev_id);
+	}
+
+	if (changed & BSS_CHANGED_DTIM_PERIOD) {
+		arvif->dtim_period = info->dtim_period;
+
+		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
+						WMI_VDEV_PARAM_DTIM_PERIOD,
+						arvif->dtim_period);
+		if (ret)
+			ath10k_warn("Failed to set dtim period for VDEV: %d\n",
+				    arvif->vdev_id);
+		else
+			ath10k_dbg(ATH10K_DBG_MAC,
+				   "Set dtim period: %d for VDEV: %d\n",
+				   arvif->dtim_period, arvif->vdev_id);
+	}
+
+	if (changed & BSS_CHANGED_SSID &&
+	    vif->type == NL80211_IFTYPE_AP) {
+		arvif->u.ap.ssid_len = info->ssid_len;
+		if (info->ssid_len)
+			memcpy(arvif->u.ap.ssid, info->ssid, info->ssid_len);
+		arvif->u.ap.hidden_ssid = info->hidden_ssid;
+	}
+
+	if (changed & BSS_CHANGED_BSSID) {
+		if (!is_zero_ether_addr(info->bssid)) {
+			ret = ath10k_peer_create(ar, arvif->vdev_id,
+						 info->bssid);
+			if (ret)
+				ath10k_warn("Failed to add peer: %pM for VDEV: %d\n",
+					    info->bssid, arvif->vdev_id);
+			else
+				ath10k_dbg(ATH10K_DBG_MAC,
+					   "Added peer: %pM for VDEV: %d\n",
+					   info->bssid, arvif->vdev_id);
+
+
+			if (vif->type == NL80211_IFTYPE_STATION) {
+				/*
+				 * this is never erased as we it for crypto key
+				 * clearing; this is FW requirement
+				 */
+				memcpy(arvif->u.sta.bssid, info->bssid,
+				       ETH_ALEN);
+
+				ret = ath10k_vdev_start(arvif);
+				if (!ret)
+					ath10k_dbg(ATH10K_DBG_MAC,
+						   "VDEV: %d started with BSSID: %pM\n",
+						   arvif->vdev_id, info->bssid);
+			}
+
+			/*
+			 * Mac80211 does not keep IBSS bssid when leaving IBSS,
+			 * so driver need to store it. It is needed when leaving
+			 * IBSS in order to remove BSSID peer.
+			 */
+			if (vif->type == NL80211_IFTYPE_ADHOC)
+				memcpy(arvif->u.ibss.bssid, info->bssid,
+				       ETH_ALEN);
+		}
+	}
+
+	if (changed & BSS_CHANGED_BEACON_ENABLED)
+		ath10k_control_beaconing(arvif, info);
+
+	if (changed & BSS_CHANGED_ERP_CTS_PROT) {
+		u32 cts_prot;
+		if (info->use_cts_prot)
+			cts_prot = 1;
+		else
+			cts_prot = 0;
+
+		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
+						WMI_VDEV_PARAM_ENABLE_RTSCTS,
+						cts_prot);
+		if (ret)
+			ath10k_warn("Failed to set CTS prot for VDEV: %d\n",
+				    arvif->vdev_id);
+		else
+			ath10k_dbg(ATH10K_DBG_MAC,
+				   "Set CTS prot: %d for VDEV: %d\n",
+				   cts_prot, arvif->vdev_id);
+	}
+
+	if (changed & BSS_CHANGED_ERP_SLOT) {
+		u32 slottime;
+		if (info->use_short_slot)
+			slottime = WMI_VDEV_SLOT_TIME_SHORT; /* 9us */
+
+		else
+			slottime = WMI_VDEV_SLOT_TIME_LONG; /* 20us */
+
+		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
+						WMI_VDEV_PARAM_SLOT_TIME,
+						slottime);
+		if (ret)
+			ath10k_warn("Failed to set erp slot for VDEV: %d\n",
+				    arvif->vdev_id);
+		else
+			ath10k_dbg(ATH10K_DBG_MAC,
+				   "Set slottime: %d for VDEV: %d\n",
+				   slottime, arvif->vdev_id);
+	}
+
+	if (changed & BSS_CHANGED_ERP_PREAMBLE) {
+		u32 preamble;
+		if (info->use_short_preamble)
+			preamble = WMI_VDEV_PREAMBLE_SHORT;
+		else
+			preamble = WMI_VDEV_PREAMBLE_LONG;
+
+		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
+						WMI_VDEV_PARAM_PREAMBLE,
+						preamble);
+		if (ret)
+			ath10k_warn("Failed to set preamble for VDEV: %d\n",
+				    arvif->vdev_id);
+		else
+			ath10k_dbg(ATH10K_DBG_MAC,
+				   "Set preamble: %d for VDEV: %d\n",
+				   preamble, arvif->vdev_id);
+	}
+
+	if (changed & BSS_CHANGED_ASSOC) {
+		if (info->assoc)
+			ath10k_bss_assoc(hw, vif, info);
+	}
+
+	mutex_unlock(&ar->conf_mutex);
+}
+
+static int ath10k_hw_scan(struct ieee80211_hw *hw,
+			  struct ieee80211_vif *vif,
+			  struct cfg80211_scan_request *req)
+{
+	struct ath10k *ar = hw->priv;
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	struct wmi_start_scan_arg arg;
+	int ret = 0;
+	int i;
+
+	mutex_lock(&ar->conf_mutex);
+
+	spin_lock_bh(&ar->data_lock);
+	if (ar->scan.in_progress) {
+		spin_unlock_bh(&ar->data_lock);
+		ret = -EBUSY;
+		goto exit;
+	}
+
+	INIT_COMPLETION(ar->scan.started);
+	INIT_COMPLETION(ar->scan.completed);
+	ar->scan.in_progress = true;
+	ar->scan.aborting = false;
+	ar->scan.is_roc = false;
+	ar->scan.vdev_id = arvif->vdev_id;
+	spin_unlock_bh(&ar->data_lock);
+
+	memset(&arg, 0, sizeof(arg));
+	ath10k_wmi_start_scan_init(ar, &arg);
+	arg.vdev_id = arvif->vdev_id;
+	arg.scan_id = ATH10K_SCAN_ID;
+
+	if (!req->no_cck)
+		arg.scan_ctrl_flags |= WMI_SCAN_ADD_CCK_RATES;
+
+	if (req->ie_len) {
+		arg.ie_len = req->ie_len;
+		memcpy(arg.ie, req->ie, arg.ie_len);
+	}
+
+	if (req->n_ssids) {
+		arg.n_ssids = req->n_ssids;
+		for (i = 0; i < arg.n_ssids; i++) {
+			arg.ssids[i].len  = req->ssids[i].ssid_len;
+			arg.ssids[i].ssid = req->ssids[i].ssid;
+		}
+	}
+
+	if (req->n_channels) {
+		arg.n_channels = req->n_channels;
+		for (i = 0; i < arg.n_channels; i++)
+			arg.channels[i] = req->channels[i]->center_freq;
+	}
+
+	ret = ath10k_start_scan(ar, &arg);
+	if (ret) {
+		ath10k_warn("could not start hw scan (%d)\n", ret);
+		spin_lock_bh(&ar->data_lock);
+		ar->scan.in_progress = false;
+		spin_unlock_bh(&ar->data_lock);
+	}
+
+exit:
+	mutex_unlock(&ar->conf_mutex);
+	return ret;
+}
+
+static void ath10k_cancel_hw_scan(struct ieee80211_hw *hw,
+				  struct ieee80211_vif *vif)
+{
+	struct ath10k *ar = hw->priv;
+	int ret;
+
+	mutex_lock(&ar->conf_mutex);
+	ret = ath10k_abort_scan(ar);
+	if (ret) {
+		ath10k_warn("couldn't abort scan (%d). forcefully sending scan completion to mac80211\n",
+			    ret);
+		ieee80211_scan_completed(hw, 1 /* aborted */);
+	}
+	mutex_unlock(&ar->conf_mutex);
+}
+
+static int ath10k_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
+			  struct ieee80211_vif *vif, struct ieee80211_sta *sta,
+			  struct ieee80211_key_conf *key)
+{
+	struct ath10k *ar = hw->priv;
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	struct ath10k_peer *peer;
+	const u8 *peer_addr;
+	bool is_wep = key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
+		      key->cipher == WLAN_CIPHER_SUITE_WEP104;
+	int ret = 0;
+
+	if (key->keyidx > WMI_MAX_KEY_INDEX)
+		return -ENOSPC;
+
+	mutex_lock(&ar->conf_mutex);
+
+	if (sta)
+		peer_addr = sta->addr;
+	else if (arvif->vdev_type == WMI_VDEV_TYPE_STA)
+		peer_addr = vif->bss_conf.bssid;
+	else
+		peer_addr = vif->addr;
+
+	key->hw_key_idx = key->keyidx;
+
+	/* the peer should not disappear in mid-way (unless FW goes awry) since
+	 * we already hold conf_mutex. we just make sure its there now. */
+	spin_lock_bh(&ar->data_lock);
+	peer = ath10k_peer_find(ar, arvif->vdev_id, peer_addr);
+	spin_unlock_bh(&ar->data_lock);
+
+	if (!peer) {
+		if (cmd == SET_KEY) {
+			ath10k_warn("cannot install key for non-existent peer %pM\n",
+				    peer_addr);
+			ret = -EOPNOTSUPP;
+			goto exit;
+		} else {
+			/* if the peer doesn't exist there is no key to disable
+			 * anymore */
+			goto exit;
+		}
+	}
+
+	if (is_wep) {
+		if (cmd == SET_KEY)
+			arvif->wep_keys[key->keyidx] = key;
+		else
+			arvif->wep_keys[key->keyidx] = NULL;
+
+		if (cmd == DISABLE_KEY)
+			ath10k_clear_vdev_key(arvif, key);
+	}
+
+	ret = ath10k_install_key(arvif, key, cmd, peer_addr);
+	if (ret) {
+		ath10k_warn("ath10k_install_key failed (%d)\n", ret);
+		goto exit;
+	}
+
+	spin_lock_bh(&ar->data_lock);
+	peer = ath10k_peer_find(ar, arvif->vdev_id, peer_addr);
+	if (peer && cmd == SET_KEY)
+		peer->keys[key->keyidx] = key;
+	else if (peer && cmd == DISABLE_KEY)
+		peer->keys[key->keyidx] = NULL;
+	else if (peer == NULL)
+		/* impossible unless FW goes crazy */
+		ath10k_warn("peer %pM disappeared!\n", peer_addr);
+	spin_unlock_bh(&ar->data_lock);
+
+exit:
+	mutex_unlock(&ar->conf_mutex);
+	return ret;
+}
+
+static int ath10k_sta_state(struct ieee80211_hw *hw,
+			    struct ieee80211_vif *vif,
+			    struct ieee80211_sta *sta,
+			    enum ieee80211_sta_state old_state,
+			    enum ieee80211_sta_state new_state)
+{
+	struct ath10k *ar = hw->priv;
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	int ret = 0;
+
+	mutex_lock(&ar->conf_mutex);
+
+	if (old_state == IEEE80211_STA_NOTEXIST &&
+	    new_state == IEEE80211_STA_NONE &&
+	    vif->type != NL80211_IFTYPE_STATION) {
+		/*
+		 * New station addition.
+		 */
+		ret = ath10k_peer_create(ar, arvif->vdev_id, sta->addr);
+		if (ret)
+			ath10k_warn("Failed to add peer: %pM for VDEV: %d\n",
+				    sta->addr, arvif->vdev_id);
+		else
+			ath10k_dbg(ATH10K_DBG_MAC,
+				   "Added peer: %pM for VDEV: %d\n",
+				   sta->addr, arvif->vdev_id);
+	} else if ((old_state == IEEE80211_STA_NONE &&
+		    new_state == IEEE80211_STA_NOTEXIST)) {
+		/*
+		 * Existing station deletion.
+		 */
+		ret = ath10k_peer_delete(ar, arvif->vdev_id, sta->addr);
+		if (ret)
+			ath10k_warn("Failed to delete peer: %pM for VDEV: %d\n",
+				    sta->addr, arvif->vdev_id);
+		else
+			ath10k_dbg(ATH10K_DBG_MAC,
+				   "Removed peer: %pM for VDEV: %d\n",
+				   sta->addr, arvif->vdev_id);
+
+		if (vif->type == NL80211_IFTYPE_STATION)
+			ath10k_bss_disassoc(hw, vif);
+	} else if (old_state == IEEE80211_STA_AUTH &&
+		   new_state == IEEE80211_STA_ASSOC &&
+		   (vif->type == NL80211_IFTYPE_AP ||
+		    vif->type == NL80211_IFTYPE_ADHOC)) {
+		/*
+		 * New association.
+		 */
+		ret = ath10k_station_assoc(ar, arvif, sta);
+		if (ret)
+			ath10k_warn("Failed to associate station: %pM\n",
+				    sta->addr);
+		else
+			ath10k_dbg(ATH10K_DBG_MAC,
+				   "Station %pM moved to assoc state\n",
+				   sta->addr);
+	} else if (old_state == IEEE80211_STA_ASSOC &&
+		   new_state == IEEE80211_STA_AUTH &&
+		   (vif->type == NL80211_IFTYPE_AP ||
+		    vif->type == NL80211_IFTYPE_ADHOC)) {
+		/*
+		 * Disassociation.
+		 */
+		ret = ath10k_station_disassoc(ar, arvif, sta);
+		if (ret)
+			ath10k_warn("Failed to disassociate station: %pM\n",
+				    sta->addr);
+		else
+			ath10k_dbg(ATH10K_DBG_MAC,
+				   "Station %pM moved to disassociated state\n",
+				   sta->addr);
+	}
+
+	mutex_unlock(&ar->conf_mutex);
+	return ret;
+}
+
+static int ath10k_conf_tx_uapsd(struct ath10k *ar, struct ieee80211_vif *vif,
+				 u16 ac, bool enable)
+{
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	u32 value = 0;
+	int ret = 0;
+
+	if (arvif->vdev_type != WMI_VDEV_TYPE_STA)
+		return 0;
+
+	switch (ac) {
+	case IEEE80211_AC_VO:
+		value = WMI_STA_PS_UAPSD_AC3_DELIVERY_EN |
+			WMI_STA_PS_UAPSD_AC3_TRIGGER_EN;
+		break;
+	case IEEE80211_AC_VI:
+		value = WMI_STA_PS_UAPSD_AC2_DELIVERY_EN |
+			WMI_STA_PS_UAPSD_AC2_TRIGGER_EN;
+		break;
+	case IEEE80211_AC_BE:
+		value = WMI_STA_PS_UAPSD_AC1_DELIVERY_EN |
+			WMI_STA_PS_UAPSD_AC1_TRIGGER_EN;
+		break;
+	case IEEE80211_AC_BK:
+		value = WMI_STA_PS_UAPSD_AC0_DELIVERY_EN |
+			WMI_STA_PS_UAPSD_AC0_TRIGGER_EN;
+		break;
+	}
+
+	if (enable)
+		arvif->u.sta.uapsd |= value;
+	else
+		arvif->u.sta.uapsd &= ~value;
+
+	ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
+					  WMI_STA_PS_PARAM_UAPSD,
+					  arvif->u.sta.uapsd);
+	if (ret) {
+		ath10k_warn("could not set uapsd params %d\n", ret);
+		goto exit;
+	}
+
+	if (arvif->u.sta.uapsd)
+		value = WMI_STA_PS_RX_WAKE_POLICY_POLL_UAPSD;
+	else
+		value = WMI_STA_PS_RX_WAKE_POLICY_WAKE;
+
+	ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
+					  WMI_STA_PS_PARAM_RX_WAKE_POLICY,
+					  value);
+	if (ret)
+		ath10k_warn("could not set rx wake param %d\n", ret);
+
+exit:
+	return ret;
+}
+
+static int ath10k_conf_tx(struct ieee80211_hw *hw,
+			  struct ieee80211_vif *vif, u16 ac,
+			  const struct ieee80211_tx_queue_params *params)
+{
+	struct ath10k *ar = hw->priv;
+	struct wmi_wmm_params_arg *p = NULL;
+	int ret;
+
+	mutex_lock(&ar->conf_mutex);
+
+	switch (ac) {
+	case IEEE80211_AC_VO:
+		p = &ar->wmm_params.ac_vo;
+		break;
+	case IEEE80211_AC_VI:
+		p = &ar->wmm_params.ac_vi;
+		break;
+	case IEEE80211_AC_BE:
+		p = &ar->wmm_params.ac_be;
+		break;
+	case IEEE80211_AC_BK:
+		p = &ar->wmm_params.ac_bk;
+		break;
+	}
+
+	if (WARN_ON(!p)) {
+		ret = -EINVAL;
+		goto exit;
+	}
+
+	p->cwmin = params->cw_min;
+	p->cwmax = params->cw_max;
+	p->aifs = params->aifs;
+
+	/*
+	 * The channel time duration programmed in the HW is in absolute
+	 * microseconds, while mac80211 gives the txop in units of
+	 * 32 microseconds.
+	 */
+	p->txop = params->txop * 32;
+
+	/* FIXME: FW accepts wmm params per hw, not per vif */
+	ret = ath10k_wmi_pdev_set_wmm_params(ar, &ar->wmm_params);
+	if (ret) {
+		ath10k_warn("could not set wmm params %d\n", ret);
+		goto exit;
+	}
+
+	ret = ath10k_conf_tx_uapsd(ar, vif, ac, params->uapsd);
+	if (ret)
+		ath10k_warn("could not set sta uapsd %d\n", ret);
+
+exit:
+	mutex_unlock(&ar->conf_mutex);
+	return ret;
+}
+
+#define ATH10K_ROC_TIMEOUT_HZ (2*HZ)
+
+static int ath10k_remain_on_channel(struct ieee80211_hw *hw,
+				    struct ieee80211_vif *vif,
+				    struct ieee80211_channel *chan,
+				    int duration,
+				    enum ieee80211_roc_type type)
+{
+	struct ath10k *ar = hw->priv;
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	struct wmi_start_scan_arg arg;
+	int ret;
+
+	mutex_lock(&ar->conf_mutex);
+
+	spin_lock_bh(&ar->data_lock);
+	if (ar->scan.in_progress) {
+		spin_unlock_bh(&ar->data_lock);
+		ret = -EBUSY;
+		goto exit;
+	}
+
+	INIT_COMPLETION(ar->scan.started);
+	INIT_COMPLETION(ar->scan.completed);
+	INIT_COMPLETION(ar->scan.on_channel);
+	ar->scan.in_progress = true;
+	ar->scan.aborting = false;
+	ar->scan.is_roc = true;
+	ar->scan.vdev_id = arvif->vdev_id;
+	ar->scan.roc_freq = chan->center_freq;
+	spin_unlock_bh(&ar->data_lock);
+
+	memset(&arg, 0, sizeof(arg));
+	ath10k_wmi_start_scan_init(ar, &arg);
+	arg.vdev_id = arvif->vdev_id;
+	arg.scan_id = ATH10K_SCAN_ID;
+	arg.n_channels = 1;
+	arg.channels[0] = chan->center_freq;
+	arg.dwell_time_active = duration;
+	arg.dwell_time_passive = duration;
+	arg.max_scan_time = 2 * duration;
+	arg.scan_ctrl_flags |= WMI_SCAN_FLAG_PASSIVE;
+	arg.scan_ctrl_flags |= WMI_SCAN_FILTER_PROBE_REQ;
+
+	ret = ath10k_start_scan(ar, &arg);
+	if (ret) {
+		ath10k_warn("could not start roc scan (%d)\n", ret);
+		spin_lock_bh(&ar->data_lock);
+		ar->scan.in_progress = false;
+		spin_unlock_bh(&ar->data_lock);
+		goto exit;
+	}
+
+	ret = wait_for_completion_timeout(&ar->scan.on_channel, 3*HZ);
+	if (ret == 0) {
+		ath10k_warn("could not switch to channel for roc scan\n");
+		ath10k_abort_scan(ar);
+		ret = -ETIMEDOUT;
+		goto exit;
+	}
+
+	ret = 0;
+exit:
+	mutex_unlock(&ar->conf_mutex);
+	return ret;
+}
+
+static int ath10k_cancel_remain_on_channel(struct ieee80211_hw *hw)
+{
+	struct ath10k *ar = hw->priv;
+
+	mutex_lock(&ar->conf_mutex);
+	ath10k_abort_scan(ar);
+	mutex_unlock(&ar->conf_mutex);
+
+	return 0;
+}
+
+/*
+ * Both RTS and Fragmentation threshold are interface-specific
+ * in ath10k, but device-specific in mac80211.
+ */
+static void ath10k_set_rts_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
+{
+	struct ath10k_generic_iter *ar_iter = data;
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	u32 rts = ar_iter->ar->hw->wiphy->rts_threshold;
+
+	rts = min_t(u32, rts, ATH10K_RTS_MAX);
+
+	ar_iter->ret = ath10k_wmi_vdev_set_param(ar_iter->ar, arvif->vdev_id,
+						 WMI_VDEV_PARAM_RTS_THRESHOLD,
+						 rts);
+	if (ar_iter->ret)
+		ath10k_warn("Failed to set RTS threshold for VDEV: %d\n",
+			    arvif->vdev_id);
+	else
+		ath10k_dbg(ATH10K_DBG_MAC,
+			   "Set RTS threshold: %d for VDEV: %d\n",
+			   rts, arvif->vdev_id);
+}
+
+static int ath10k_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
+{
+	struct ath10k_generic_iter ar_iter;
+	struct ath10k *ar = hw->priv;
+
+	memset(&ar_iter, 0, sizeof(struct ath10k_generic_iter));
+	ar_iter.ar = ar;
+
+	mutex_lock(&ar->conf_mutex);
+	ieee80211_iterate_active_interfaces(hw, IEEE80211_IFACE_ITER_RESUME_ALL,
+					    ath10k_set_rts_iter, &ar_iter);
+	mutex_unlock(&ar->conf_mutex);
+
+	return ar_iter.ret;
+}
+
+static void ath10k_set_frag_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
+{
+	struct ath10k_generic_iter *ar_iter = data;
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	u32 frag = ar_iter->ar->hw->wiphy->frag_threshold;
+	int ret;
+
+	frag = clamp_t(u32, frag,
+		       ATH10K_FRAGMT_THRESHOLD_MIN,
+		       ATH10K_FRAGMT_THRESHOLD_MAX);
+
+	ret = ath10k_wmi_vdev_set_param(ar_iter->ar, arvif->vdev_id,
+					WMI_VDEV_PARAM_FRAGMENTATION_THRESHOLD,
+					frag);
+
+	ar_iter->ret = ret;
+	if (ar_iter->ret)
+		ath10k_warn("Failed to set frag threshold for VDEV: %d\n",
+			    arvif->vdev_id);
+	else
+		ath10k_dbg(ATH10K_DBG_MAC,
+			   "Set frag threshold: %d for VDEV: %d\n",
+			   frag, arvif->vdev_id);
+}
+
+static int ath10k_set_frag_threshold(struct ieee80211_hw *hw, u32 value)
+{
+	struct ath10k_generic_iter ar_iter;
+	struct ath10k *ar = hw->priv;
+
+	memset(&ar_iter, 0, sizeof(struct ath10k_generic_iter));
+	ar_iter.ar = ar;
+
+	mutex_lock(&ar->conf_mutex);
+	ieee80211_iterate_active_interfaces(hw, IEEE80211_IFACE_ITER_RESUME_ALL,
+					    ath10k_set_frag_iter, &ar_iter);
+	mutex_unlock(&ar->conf_mutex);
+
+	return ar_iter.ret;
+}
+
+static void ath10k_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
+{
+	struct ath10k *ar = hw->priv;
+	int ret;
+
+	/* mac80211 doesn't care if we really xmit queued frames or not
+	 * we'll collect those frames either way if we stop/delete vdevs */
+	if (drop)
+		return;
+
+	ret = wait_event_timeout(ar->htt->empty_tx_wq, ({
+			bool empty;
+			spin_lock_bh(&ar->htt->tx_lock);
+			empty = bitmap_empty(ar->htt->used_msdu_ids,
+					     ar->htt->max_num_pending_tx);
+			spin_unlock_bh(&ar->htt->tx_lock);
+			(empty);
+		}), ATH10K_FLUSH_TIMEOUT_HZ);
+	if (ret <= 0)
+		ath10k_warn("tx not flushed\n");
+}
+
+/* TODO: Implement this function properly
+ * For now it is needed to reply to Probe Requests in IBSS mode.
+ * Propably we need this information from FW.
+ */
+static int ath10k_tx_last_beacon(struct ieee80211_hw *hw)
+{
+	return 1;
+}
+
+static const struct ieee80211_ops ath10k_ops = {
+	.tx				= ath10k_tx,
+	.start				= ath10k_start,
+	.stop				= ath10k_stop,
+	.config				= ath10k_config,
+	.add_interface			= ath10k_add_interface,
+	.remove_interface		= ath10k_remove_interface,
+	.configure_filter		= ath10k_configure_filter,
+	.bss_info_changed		= ath10k_bss_info_changed,
+	.hw_scan			= ath10k_hw_scan,
+	.cancel_hw_scan			= ath10k_cancel_hw_scan,
+	.set_key			= ath10k_set_key,
+	.sta_state			= ath10k_sta_state,
+	.conf_tx			= ath10k_conf_tx,
+	.remain_on_channel		= ath10k_remain_on_channel,
+	.cancel_remain_on_channel	= ath10k_cancel_remain_on_channel,
+	.set_rts_threshold		= ath10k_set_rts_threshold,
+	.set_frag_threshold		= ath10k_set_frag_threshold,
+	.flush				= ath10k_flush,
+	.tx_last_beacon			= ath10k_tx_last_beacon,
+};
+
+#define RATETAB_ENT(_rate, _rateid, _flags) { \
+	.bitrate		= (_rate), \
+	.flags			= (_flags), \
+	.hw_value		= (_rateid), \
+}
+
+#define CHAN2G(_channel, _freq, _flags) { \
+	.band			= IEEE80211_BAND_2GHZ, \
+	.hw_value		= (_channel), \
+	.center_freq		= (_freq), \
+	.flags			= (_flags), \
+	.max_antenna_gain	= 0, \
+	.max_power		= 30, \
+}
+
+#define CHAN5G(_channel, _freq, _flags) { \
+	.band			= IEEE80211_BAND_5GHZ, \
+	.hw_value		= (_channel), \
+	.center_freq		= (_freq), \
+	.flags			= (_flags), \
+	.max_antenna_gain	= 0, \
+	.max_power		= 30, \
+}
+
+static const struct ieee80211_channel ath10k_2ghz_channels[] = {
+	CHAN2G(1, 2412, 0),
+	CHAN2G(2, 2417, 0),
+	CHAN2G(3, 2422, 0),
+	CHAN2G(4, 2427, 0),
+	CHAN2G(5, 2432, 0),
+	CHAN2G(6, 2437, 0),
+	CHAN2G(7, 2442, 0),
+	CHAN2G(8, 2447, 0),
+	CHAN2G(9, 2452, 0),
+	CHAN2G(10, 2457, 0),
+	CHAN2G(11, 2462, 0),
+	CHAN2G(12, 2467, 0),
+	CHAN2G(13, 2472, 0),
+	CHAN2G(14, 2484, 0),
+};
+
+static const struct ieee80211_channel ath10k_5ghz_channels[] = {
+	CHAN5G(36, 5180, 14),
+	CHAN5G(40, 5200, 15),
+	CHAN5G(44, 5220, 16),
+	CHAN5G(48, 5240, 17),
+	CHAN5G(52, 5260, 18),
+	CHAN5G(56, 5280, 19),
+	CHAN5G(60, 5300, 20),
+	CHAN5G(64, 5320, 21),
+	CHAN5G(100, 5500, 22),
+	CHAN5G(104, 5520, 23),
+	CHAN5G(108, 5540, 24),
+	CHAN5G(112, 5560, 25),
+	CHAN5G(116, 5580, 26),
+	CHAN5G(120, 5600, 27),
+	CHAN5G(124, 5620, 28),
+	CHAN5G(128, 5640, 29),
+	CHAN5G(132, 5660, 30),
+	CHAN5G(136, 5680, 31),
+	CHAN5G(140, 5700, 32),
+	CHAN5G(149, 5745, 33),
+	CHAN5G(153, 5765, 34),
+	CHAN5G(157, 5785, 35),
+	CHAN5G(161, 5805, 36),
+	CHAN5G(165, 5825, 37),
+};
+
+static struct ieee80211_rate ath10k_rates[] = {
+	/* CCK */
+	RATETAB_ENT(10,  0x82, 0),
+	RATETAB_ENT(20,  0x84, 0),
+	RATETAB_ENT(55,  0x8b, 0),
+	RATETAB_ENT(110, 0x96, 0),
+	/* OFDM */
+	RATETAB_ENT(60,  0x0c, 0),
+	RATETAB_ENT(90,  0x12, 0),
+	RATETAB_ENT(120, 0x18, 0),
+	RATETAB_ENT(180, 0x24, 0),
+	RATETAB_ENT(240, 0x30, 0),
+	RATETAB_ENT(360, 0x48, 0),
+	RATETAB_ENT(480, 0x60, 0),
+	RATETAB_ENT(540, 0x6c, 0),
+};
+
+#define ath10k_a_rates (ath10k_rates + 4)
+#define ath10k_a_rates_size (ARRAY_SIZE(ath10k_rates) - 4)
+#define ath10k_g_rates (ath10k_rates + 0)
+#define ath10k_g_rates_size (ARRAY_SIZE(ath10k_rates))
+
+struct ath10k *ath10k_mac_create(void)
+{
+	struct ieee80211_hw *hw;
+	struct ath10k *ar;
+
+	hw = ieee80211_alloc_hw(sizeof(struct ath10k), &ath10k_ops);
+	if (!hw)
+		return NULL;
+
+	ar = hw->priv;
+	ar->hw = hw;
+
+	return ar;
+}
+
+void ath10k_mac_destroy(struct ath10k *ar)
+{
+	ieee80211_free_hw(ar->hw);
+}
+
+static const struct ieee80211_iface_limit ath10k_if_limits[] = {
+	{
+	.max	= 8,
+	.types	= BIT(NL80211_IFTYPE_STATION)
+		| BIT(NL80211_IFTYPE_P2P_CLIENT)
+		| BIT(NL80211_IFTYPE_P2P_GO)
+		| BIT(NL80211_IFTYPE_AP)
+	}
+};
+
+static const struct ieee80211_iface_combination ath10k_if_comb = {
+	.limits = ath10k_if_limits,
+	.n_limits = ARRAY_SIZE(ath10k_if_limits),
+	.max_interfaces = 8,
+	.num_different_channels = 1,
+	.beacon_int_infra_match = true,
+};
+
+static struct ieee80211_sta_vht_cap ath10k_create_vht_cap(struct ath10k *ar)
+{
+	struct ieee80211_sta_vht_cap vht_cap = {0};
+	u16 mcs_map;
+
+	vht_cap.vht_supported = 1;
+	vht_cap.cap = ar->vht_cap_info;
+
+	/* FIXME: check dynamically how many streams board supports */
+	mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
+		IEEE80211_VHT_MCS_SUPPORT_0_9 << 2 |
+		IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
+		IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
+		IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
+		IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
+		IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
+		IEEE80211_VHT_MCS_NOT_SUPPORTED << 14;
+
+	vht_cap.vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
+	vht_cap.vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
+
+	return vht_cap;
+}
+
+static struct ieee80211_sta_ht_cap ath10k_get_ht_cap(struct ath10k *ar)
+{
+	int i;
+	struct ieee80211_sta_ht_cap ht_cap = {0};
+
+	if (!(ar->ht_cap_info & WMI_HT_CAP_ENABLED))
+		return ht_cap;
+
+	ht_cap.ht_supported = 1;
+	ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
+	ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_8;
+	ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
+	ht_cap.cap |= IEEE80211_HT_CAP_DSSSCCK40;
+	ht_cap.cap |= WLAN_HT_CAP_SM_PS_STATIC << IEEE80211_HT_CAP_SM_PS_SHIFT;
+
+	if (ar->ht_cap_info & WMI_HT_CAP_HT20_SGI)
+		ht_cap.cap |= IEEE80211_HT_CAP_SGI_20;
+
+	if (ar->ht_cap_info & WMI_HT_CAP_HT40_SGI)
+		ht_cap.cap |= IEEE80211_HT_CAP_SGI_40;
+
+	if (ar->ht_cap_info & WMI_HT_CAP_DYNAMIC_SMPS) {
+		u32 smps;
+
+		smps   = WLAN_HT_CAP_SM_PS_DYNAMIC;
+		smps <<= IEEE80211_HT_CAP_SM_PS_SHIFT;
+
+		ht_cap.cap |= smps;
+	}
+
+	if (ar->ht_cap_info & WMI_HT_CAP_TX_STBC)
+		ht_cap.cap |= IEEE80211_HT_CAP_TX_STBC;
+
+	if (ar->ht_cap_info & WMI_HT_CAP_RX_STBC) {
+		u32 stbc;
+
+		stbc   = ar->ht_cap_info;
+		stbc  &= WMI_HT_CAP_RX_STBC;
+		stbc >>= WMI_HT_CAP_RX_STBC_MASK_SHIFT;
+		stbc <<= IEEE80211_HT_CAP_RX_STBC_SHIFT;
+		stbc  &= IEEE80211_HT_CAP_RX_STBC;
+
+		ht_cap.cap |= stbc;
+	}
+
+	if (ar->ht_cap_info & WMI_HT_CAP_LDPC)
+		ht_cap.cap |= IEEE80211_HT_CAP_LDPC_CODING;
+
+	if (ar->ht_cap_info & WMI_HT_CAP_L_SIG_TXOP_PROT)
+		ht_cap.cap |= IEEE80211_HT_CAP_LSIG_TXOP_PROT;
+
+	/* max AMSDU is implicitly taken from vht_cap_info */
+	if (ar->vht_cap_info & WMI_VHT_CAP_MAX_MPDU_LEN_MASK)
+		ht_cap.cap |= IEEE80211_HT_CAP_MAX_AMSDU;
+
+	for (i = 0; i < WMI_MAX_SPATIAL_STREAM; i++)
+		ht_cap.mcs.rx_mask[i] = 0xFF;
+
+	ht_cap.mcs.tx_params |= IEEE80211_HT_MCS_TX_DEFINED;
+
+	return ht_cap;
+}
+
+
+static void ath10k_get_arvif_iter(void *data, u8 *mac,
+				  struct ieee80211_vif *vif)
+{
+	struct ath10k_vif_iter *arvif_iter = data;
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+
+	if (arvif->vdev_id == arvif_iter->vdev_id)
+		arvif_iter->arvif = arvif;
+}
+
+struct ath10k_vif *ath10k_get_arvif(struct ath10k *ar, u32 vdev_id)
+{
+	struct ath10k_vif_iter arvif_iter;
+	u32 flags;
+
+	memset(&arvif_iter, 0, sizeof(struct ath10k_vif_iter));
+	arvif_iter.vdev_id = vdev_id;
+
+	flags = IEEE80211_IFACE_ITER_RESUME_ALL;
+	ieee80211_iterate_active_interfaces_atomic(ar->hw,
+						   flags,
+						   ath10k_get_arvif_iter,
+						   &arvif_iter);
+	if (!arvif_iter.arvif) {
+		ath10k_warn("No VIF found for VDEV: %d\n", vdev_id);
+		return NULL;
+	}
+
+	return arvif_iter.arvif;
+}
+
+int ath10k_mac_register(struct ath10k *ar)
+{
+	struct ieee80211_supported_band *band;
+	struct ieee80211_sta_vht_cap vht_cap;
+	struct ieee80211_sta_ht_cap ht_cap;
+	void *channels;
+	int ret;
+
+	SET_IEEE80211_PERM_ADDR(ar->hw, ar->mac_addr);
+
+	SET_IEEE80211_DEV(ar->hw, ar->dev);
+
+	ht_cap = ath10k_get_ht_cap(ar);
+	vht_cap = ath10k_create_vht_cap(ar);
+
+	if (ar->phy_capability & WHAL_WLAN_11G_CAPABILITY) {
+		channels = kmemdup(ath10k_2ghz_channels,
+				   sizeof(ath10k_2ghz_channels),
+				   GFP_KERNEL);
+		if (!channels)
+			return -ENOMEM;
+
+		band = &ar->mac.sbands[IEEE80211_BAND_2GHZ];
+		band->n_channels = ARRAY_SIZE(ath10k_2ghz_channels);
+		band->channels = channels;
+		band->n_bitrates = ath10k_g_rates_size;
+		band->bitrates = ath10k_g_rates;
+		band->ht_cap = ht_cap;
+
+		/* vht is not supported in 2.4 GHz */
+
+		ar->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = band;
+	}
+
+	if (ar->phy_capability & WHAL_WLAN_11A_CAPABILITY) {
+		channels = kmemdup(ath10k_5ghz_channels,
+				   sizeof(ath10k_5ghz_channels),
+				   GFP_KERNEL);
+		if (!channels) {
+			if (ar->phy_capability & WHAL_WLAN_11G_CAPABILITY) {
+				band = &ar->mac.sbands[IEEE80211_BAND_2GHZ];
+				kfree(band->channels);
+			}
+			return -ENOMEM;
+		}
+
+		band = &ar->mac.sbands[IEEE80211_BAND_5GHZ];
+		band->n_channels = ARRAY_SIZE(ath10k_5ghz_channels);
+		band->channels = channels;
+		band->n_bitrates = ath10k_a_rates_size;
+		band->bitrates = ath10k_a_rates;
+		band->ht_cap = ht_cap;
+		band->vht_cap = vht_cap;
+		ar->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = band;
+	}
+
+	ar->hw->wiphy->interface_modes =
+		BIT(NL80211_IFTYPE_STATION) |
+		BIT(NL80211_IFTYPE_ADHOC) |
+		BIT(NL80211_IFTYPE_AP) |
+		BIT(NL80211_IFTYPE_P2P_CLIENT) |
+		BIT(NL80211_IFTYPE_P2P_GO);
+
+	ar->hw->flags = IEEE80211_HW_SIGNAL_DBM |
+			IEEE80211_HW_SUPPORTS_PS |
+			IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
+			IEEE80211_HW_SUPPORTS_UAPSD |
+			IEEE80211_HW_MFP_CAPABLE |
+			IEEE80211_HW_REPORTS_TX_ACK_STATUS |
+			IEEE80211_HW_HAS_RATE_CONTROL |
+			IEEE80211_HW_SUPPORTS_STATIC_SMPS |
+			IEEE80211_HW_WANT_MONITOR_VIF |
+			IEEE80211_HW_AP_LINK_PS;
+
+	if (ar->ht_cap_info & WMI_HT_CAP_DYNAMIC_SMPS)
+		ar->hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS;
+
+	if (ar->ht_cap_info & WMI_HT_CAP_ENABLED) {
+		ar->hw->flags |= IEEE80211_HW_AMPDU_AGGREGATION;
+		ar->hw->flags |= IEEE80211_HW_TX_AMPDU_SETUP_IN_HW;
+	}
+
+	ar->hw->wiphy->max_scan_ssids = WLAN_SCAN_PARAMS_MAX_SSID;
+	ar->hw->wiphy->max_scan_ie_len = WLAN_SCAN_PARAMS_MAX_IE_LEN;
+
+	ar->hw->vif_data_size = sizeof(struct ath10k_vif);
+
+	ar->hw->channel_change_time = 5000;
+	ar->hw->max_listen_interval = ATH10K_MAX_HW_LISTEN_INTERVAL;
+
+	ar->hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
+	ar->hw->wiphy->max_remain_on_channel_duration = 5000;
+
+	ar->hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
+	/*
+	 * on LL hardware queues are managed entirely by the FW
+	 * so we only advertise to mac we can do the queues thing
+	 */
+	ar->hw->queues = 4;
+
+	ar->hw->wiphy->iface_combinations = &ath10k_if_comb;
+	ar->hw->wiphy->n_iface_combinations = 1;
+
+	ret = ath_regd_init(&ar->ath_common.regulatory, ar->hw->wiphy,
+			    ath10k_reg_notifier);
+	if (ret) {
+		ath10k_err("Regulatory initialization failed\n");
+		return ret;
+	}
+
+	ret = ieee80211_register_hw(ar->hw);
+	if (ret) {
+		ath10k_err("ieee80211 registration failed: %d\n", ret);
+		return ret;
+	}
+
+	if (!ath_is_world_regd(&ar->ath_common.regulatory)) {
+		ret = regulatory_hint(ar->hw->wiphy,
+				      ar->ath_common.regulatory.alpha2);
+		if (ret)
+			goto exit;
+	}
+
+	return 0;
+exit:
+	ieee80211_unregister_hw(ar->hw);
+	return ret;
+}
+
+void ath10k_mac_unregister(struct ath10k *ar)
+{
+	ieee80211_unregister_hw(ar->hw);
+
+	kfree(ar->mac.sbands[IEEE80211_BAND_2GHZ].channels);
+	kfree(ar->mac.sbands[IEEE80211_BAND_5GHZ].channels);
+
+	SET_IEEE80211_DEV(ar->hw, NULL);
+}

drivers/net/wireless/ath/ath10k/mac.h

@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _MAC_H_
+#define _MAC_H_
+
+#include <net/mac80211.h>
+#include "core.h"
+
+struct ath10k_generic_iter {
+	struct ath10k *ar;
+	int ret;
+};
+
+struct ath10k *ath10k_mac_create(void);
+void ath10k_mac_destroy(struct ath10k *ar);
+int ath10k_mac_register(struct ath10k *ar);
+void ath10k_mac_unregister(struct ath10k *ar);
+struct ath10k_vif *ath10k_get_arvif(struct ath10k *ar, u32 vdev_id);
+void ath10k_reset_scan(unsigned long ptr);
+void ath10k_offchan_tx_purge(struct ath10k *ar);
+void ath10k_offchan_tx_work(struct work_struct *work);
+
+static inline struct ath10k_vif *ath10k_vif_to_arvif(struct ieee80211_vif *vif)
+{
+	return (struct ath10k_vif *)vif->drv_priv;
+}
+
+static inline void ath10k_tx_h_seq_no(struct sk_buff *skb)
+{
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+	struct ieee80211_vif *vif = info->control.vif;
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+
+	if (info->flags  & IEEE80211_TX_CTL_ASSIGN_SEQ) {
+		if (arvif->tx_seq_no == 0)
+			arvif->tx_seq_no = 0x1000;
+
+		if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
+			arvif->tx_seq_no += 0x10;
+		hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
+		hdr->seq_ctrl |= cpu_to_le16(arvif->tx_seq_no);
+	}
+}
+
+#endif /* _MAC_H_ */

drivers/net/wireless/ath/ath10k/pci.c

@@ -0,0 +1,2506 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/pci.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+
+#include "core.h"
+#include "debug.h"
+
+#include "targaddrs.h"
+#include "bmi.h"
+
+#include "hif.h"
+#include "htc.h"
+
+#include "ce.h"
+#include "pci.h"
+
+unsigned int ath10k_target_ps;
+module_param(ath10k_target_ps, uint, 0644);
+MODULE_PARM_DESC(ath10k_target_ps, "Enable ath10k Target (SoC) PS option");
+
+#define QCA988X_1_0_DEVICE_ID	(0xabcd)
+#define QCA988X_2_0_DEVICE_ID	(0x003c)
+
+static DEFINE_PCI_DEVICE_TABLE(ath10k_pci_id_table) = {
+	{ PCI_VDEVICE(ATHEROS, QCA988X_1_0_DEVICE_ID) }, /* PCI-E QCA988X V1 */
+	{ PCI_VDEVICE(ATHEROS, QCA988X_2_0_DEVICE_ID) }, /* PCI-E QCA988X V2 */
+	{0}
+};
+
+static int ath10k_pci_diag_read_access(struct ath10k *ar, u32 address,
+				       u32 *data);
+
+static void ath10k_pci_process_ce(struct ath10k *ar);
+static int ath10k_pci_post_rx(struct ath10k *ar);
+static int ath10k_pci_post_rx_pipe(struct hif_ce_pipe_info *pipe_info,
+					     int num);
+static void ath10k_pci_rx_pipe_cleanup(struct hif_ce_pipe_info *pipe_info);
+static void ath10k_pci_stop_ce(struct ath10k *ar);
+
+static const struct ce_attr host_ce_config_wlan[] = {
+	/* host->target HTC control and raw streams */
+	{ /* CE0 */ CE_ATTR_FLAGS, 0, 16, 256, 0, NULL,},
+	/* could be moved to share CE3 */
+	/* target->host HTT + HTC control */
+	{ /* CE1 */ CE_ATTR_FLAGS, 0, 0, 512, 512, NULL,},
+	/* target->host WMI */
+	{ /* CE2 */ CE_ATTR_FLAGS, 0, 0, 2048, 32, NULL,},
+	/* host->target WMI */
+	{ /* CE3 */ CE_ATTR_FLAGS, 0, 32, 2048, 0, NULL,},
+	/* host->target HTT */
+	{ /* CE4 */ CE_ATTR_FLAGS | CE_ATTR_DIS_INTR, 0,
+		    CE_HTT_H2T_MSG_SRC_NENTRIES, 256, 0, NULL,},
+	/* unused */
+	{ /* CE5 */ CE_ATTR_FLAGS, 0, 0, 0, 0, NULL,},
+	/* Target autonomous hif_memcpy */
+	{ /* CE6 */ CE_ATTR_FLAGS, 0, 0, 0, 0, NULL,},
+	/* ce_diag, the Diagnostic Window */
+	{ /* CE7 */ CE_ATTR_FLAGS, 0, 2, DIAG_TRANSFER_LIMIT, 2, NULL,},
+};
+
+/* Target firmware's Copy Engine configuration. */
+static const struct ce_pipe_config target_ce_config_wlan[] = {
+	/* host->target HTC control and raw streams */
+	{ /* CE0 */ 0, PIPEDIR_OUT, 32, 256, CE_ATTR_FLAGS, 0,},
+	/* target->host HTT + HTC control */
+	{ /* CE1 */ 1, PIPEDIR_IN, 32, 512, CE_ATTR_FLAGS, 0,},
+	/* target->host WMI */
+	{ /* CE2 */ 2, PIPEDIR_IN, 32, 2048, CE_ATTR_FLAGS, 0,},
+	/* host->target WMI */
+	{ /* CE3 */ 3, PIPEDIR_OUT, 32, 2048, CE_ATTR_FLAGS, 0,},
+	/* host->target HTT */
+	{ /* CE4 */ 4, PIPEDIR_OUT, 256, 256, CE_ATTR_FLAGS, 0,},
+	/* NB: 50% of src nentries, since tx has 2 frags */
+	/* unused */
+	{ /* CE5 */ 5, PIPEDIR_OUT, 32, 2048, CE_ATTR_FLAGS, 0,},
+	/* Reserved for target autonomous hif_memcpy */
+	{ /* CE6 */ 6, PIPEDIR_INOUT, 32, 4096, CE_ATTR_FLAGS, 0,},
+	/* CE7 used only by Host */
+};
+
+/*
+ * Diagnostic read/write access is provided for startup/config/debug usage.
+ * Caller must guarantee proper alignment, when applicable, and single user
+ * at any moment.
+ */
+static int ath10k_pci_diag_read_mem(struct ath10k *ar, u32 address, void *data,
+				    int nbytes)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int ret = 0;
+	u32 buf;
+	unsigned int completed_nbytes, orig_nbytes, remaining_bytes;
+	unsigned int id;
+	unsigned int flags;
+	struct ce_state *ce_diag;
+	/* Host buffer address in CE space */
+	u32 ce_data;
+	dma_addr_t ce_data_base = 0;
+	void *data_buf = NULL;
+	int i;
+
+	/*
+	 * This code cannot handle reads to non-memory space. Redirect to the
+	 * register read fn but preserve the multi word read capability of
+	 * this fn
+	 */
+	if (address < DRAM_BASE_ADDRESS) {
+		if (!IS_ALIGNED(address, 4) ||
+		    !IS_ALIGNED((unsigned long)data, 4))
+			return -EIO;
+
+		while ((nbytes >= 4) &&  ((ret = ath10k_pci_diag_read_access(
+					   ar, address, (u32 *)data)) == 0)) {
+			nbytes -= sizeof(u32);
+			address += sizeof(u32);
+			data += sizeof(u32);
+		}
+		return ret;
+	}
+
+	ce_diag = ar_pci->ce_diag;
+
+	/*
+	 * Allocate a temporary bounce buffer to hold caller's data
+	 * to be DMA'ed from Target. This guarantees
+	 *   1) 4-byte alignment
+	 *   2) Buffer in DMA-able space
+	 */
+	orig_nbytes = nbytes;
+	data_buf = (unsigned char *)pci_alloc_consistent(ar_pci->pdev,
+							 orig_nbytes,
+							 &ce_data_base);
+
+	if (!data_buf) {
+		ret = -ENOMEM;
+		goto done;
+	}
+	memset(data_buf, 0, orig_nbytes);
+
+	remaining_bytes = orig_nbytes;
+	ce_data = ce_data_base;
+	while (remaining_bytes) {
+		nbytes = min_t(unsigned int, remaining_bytes,
+			       DIAG_TRANSFER_LIMIT);
+
+		ret = ath10k_ce_recv_buf_enqueue(ce_diag, NULL, ce_data);
+		if (ret != 0)
+			goto done;
+
+		/* Request CE to send from Target(!) address to Host buffer */
+		/*
+		 * The address supplied by the caller is in the
+		 * Target CPU virtual address space.
+		 *
+		 * In order to use this address with the diagnostic CE,
+		 * convert it from Target CPU virtual address space
+		 * to CE address space
+		 */
+		ath10k_pci_wake(ar);
+		address = TARG_CPU_SPACE_TO_CE_SPACE(ar, ar_pci->mem,
+						     address);
+		ath10k_pci_sleep(ar);
+
+		ret = ath10k_ce_send(ce_diag, NULL, (u32)address, nbytes, 0,
+				 0);
+		if (ret)
+			goto done;
+
+		i = 0;
+		while (ath10k_ce_completed_send_next(ce_diag, NULL, &buf,
+						     &completed_nbytes,
+						     &id) != 0) {
+			mdelay(1);
+			if (i++ > DIAG_ACCESS_CE_TIMEOUT_MS) {
+				ret = -EBUSY;
+				goto done;
+			}
+		}
+
+		if (nbytes != completed_nbytes) {
+			ret = -EIO;
+			goto done;
+		}
+
+		if (buf != (u32) address) {
+			ret = -EIO;
+			goto done;
+		}
+
+		i = 0;
+		while (ath10k_ce_completed_recv_next(ce_diag, NULL, &buf,
+						     &completed_nbytes,
+						     &id, &flags) != 0) {
+			mdelay(1);
+
+			if (i++ > DIAG_ACCESS_CE_TIMEOUT_MS) {
+				ret = -EBUSY;
+				goto done;
+			}
+		}
+
+		if (nbytes != completed_nbytes) {
+			ret = -EIO;
+			goto done;
+		}
+
+		if (buf != ce_data) {
+			ret = -EIO;
+			goto done;
+		}
+
+		remaining_bytes -= nbytes;
+		address += nbytes;
+		ce_data += nbytes;
+	}
+
+done:
+	if (ret == 0) {
+		/* Copy data from allocated DMA buf to caller's buf */
+		WARN_ON_ONCE(orig_nbytes & 3);
+		for (i = 0; i < orig_nbytes / sizeof(__le32); i++) {
+			((u32 *)data)[i] =
+				__le32_to_cpu(((__le32 *)data_buf)[i]);
+		}
+	} else
+		ath10k_dbg(ATH10K_DBG_PCI, "%s failure (0x%x)\n",
+			   __func__, address);
+
+	if (data_buf)
+		pci_free_consistent(ar_pci->pdev, orig_nbytes,
+				    data_buf, ce_data_base);
+
+	return ret;
+}
+
+/* Read 4-byte aligned data from Target memory or register */
+static int ath10k_pci_diag_read_access(struct ath10k *ar, u32 address,
+				       u32 *data)
+{
+	/* Assume range doesn't cross this boundary */
+	if (address >= DRAM_BASE_ADDRESS)
+		return ath10k_pci_diag_read_mem(ar, address, data, sizeof(u32));
+
+	ath10k_pci_wake(ar);
+	*data = ath10k_pci_read32(ar, address);
+	ath10k_pci_sleep(ar);
+	return 0;
+}
+
+static int ath10k_pci_diag_write_mem(struct ath10k *ar, u32 address,
+				     const void *data, int nbytes)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int ret = 0;
+	u32 buf;
+	unsigned int completed_nbytes, orig_nbytes, remaining_bytes;
+	unsigned int id;
+	unsigned int flags;
+	struct ce_state *ce_diag;
+	void *data_buf = NULL;
+	u32 ce_data;	/* Host buffer address in CE space */
+	dma_addr_t ce_data_base = 0;
+	int i;
+
+	ce_diag = ar_pci->ce_diag;
+
+	/*
+	 * Allocate a temporary bounce buffer to hold caller's data
+	 * to be DMA'ed to Target. This guarantees
+	 *   1) 4-byte alignment
+	 *   2) Buffer in DMA-able space
+	 */
+	orig_nbytes = nbytes;
+	data_buf = (unsigned char *)pci_alloc_consistent(ar_pci->pdev,
+							 orig_nbytes,
+							 &ce_data_base);
+	if (!data_buf) {
+		ret = -ENOMEM;
+		goto done;
+	}
+
+	/* Copy caller's data to allocated DMA buf */
+	WARN_ON_ONCE(orig_nbytes & 3);
+	for (i = 0; i < orig_nbytes / sizeof(__le32); i++)
+		((__le32 *)data_buf)[i] = __cpu_to_le32(((u32 *)data)[i]);
+
+	/*
+	 * The address supplied by the caller is in the
+	 * Target CPU virtual address space.
+	 *
+	 * In order to use this address with the diagnostic CE,
+	 * convert it from
+	 *    Target CPU virtual address space
+	 * to
+	 *    CE address space
+	 */
+	ath10k_pci_wake(ar);
+	address = TARG_CPU_SPACE_TO_CE_SPACE(ar, ar_pci->mem, address);
+	ath10k_pci_sleep(ar);
+
+	remaining_bytes = orig_nbytes;
+	ce_data = ce_data_base;
+	while (remaining_bytes) {
+		/* FIXME: check cast */
+		nbytes = min_t(int, remaining_bytes, DIAG_TRANSFER_LIMIT);
+
+		/* Set up to receive directly into Target(!) address */
+		ret = ath10k_ce_recv_buf_enqueue(ce_diag, NULL, address);
+		if (ret != 0)
+			goto done;
+
+		/*
+		 * Request CE to send caller-supplied data that
+		 * was copied to bounce buffer to Target(!) address.
+		 */
+		ret = ath10k_ce_send(ce_diag, NULL, (u32) ce_data,
+				     nbytes, 0, 0);
+		if (ret != 0)
+			goto done;
+
+		i = 0;
+		while (ath10k_ce_completed_send_next(ce_diag, NULL, &buf,
+						     &completed_nbytes,
+						     &id) != 0) {
+			mdelay(1);
+
+			if (i++ > DIAG_ACCESS_CE_TIMEOUT_MS) {
+				ret = -EBUSY;
+				goto done;
+			}
+		}
+
+		if (nbytes != completed_nbytes) {
+			ret = -EIO;
+			goto done;
+		}
+
+		if (buf != ce_data) {
+			ret = -EIO;
+			goto done;
+		}
+
+		i = 0;
+		while (ath10k_ce_completed_recv_next(ce_diag, NULL, &buf,
+						     &completed_nbytes,
+						     &id, &flags) != 0) {
+			mdelay(1);
+
+			if (i++ > DIAG_ACCESS_CE_TIMEOUT_MS) {
+				ret = -EBUSY;
+				goto done;
+			}
+		}
+
+		if (nbytes != completed_nbytes) {
+			ret = -EIO;
+			goto done;
+		}
+
+		if (buf != address) {
+			ret = -EIO;
+			goto done;
+		}
+
+		remaining_bytes -= nbytes;
+		address += nbytes;
+		ce_data += nbytes;
+	}
+
+done:
+	if (data_buf) {
+		pci_free_consistent(ar_pci->pdev, orig_nbytes, data_buf,
+				    ce_data_base);
+	}
+
+	if (ret != 0)
+		ath10k_dbg(ATH10K_DBG_PCI, "%s failure (0x%x)\n", __func__,
+			   address);
+
+	return ret;
+}
+
+/* Write 4B data to Target memory or register */
+static int ath10k_pci_diag_write_access(struct ath10k *ar, u32 address,
+					u32 data)
+{
+	/* Assume range doesn't cross this boundary */
+	if (address >= DRAM_BASE_ADDRESS)
+		return ath10k_pci_diag_write_mem(ar, address, &data,
+						 sizeof(u32));
+
+	ath10k_pci_wake(ar);
+	ath10k_pci_write32(ar, address, data);
+	ath10k_pci_sleep(ar);
+	return 0;
+}
+
+static bool ath10k_pci_target_is_awake(struct ath10k *ar)
+{
+	void __iomem *mem = ath10k_pci_priv(ar)->mem;
+	u32 val;
+	val = ioread32(mem + PCIE_LOCAL_BASE_ADDRESS +
+		       RTC_STATE_ADDRESS);
+	return (RTC_STATE_V_GET(val) == RTC_STATE_V_ON);
+}
+
+static void ath10k_pci_wait(struct ath10k *ar)
+{
+	int n = 100;
+
+	while (n-- && !ath10k_pci_target_is_awake(ar))
+		msleep(10);
+
+	if (n < 0)
+		ath10k_warn("Unable to wakeup target\n");
+}
+
+void ath10k_do_pci_wake(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	void __iomem *pci_addr = ar_pci->mem;
+	int tot_delay = 0;
+	int curr_delay = 5;
+
+	if (atomic_read(&ar_pci->keep_awake_count) == 0) {
+		/* Force AWAKE */
+		iowrite32(PCIE_SOC_WAKE_V_MASK,
+			  pci_addr + PCIE_LOCAL_BASE_ADDRESS +
+			  PCIE_SOC_WAKE_ADDRESS);
+	}
+	atomic_inc(&ar_pci->keep_awake_count);
+
+	if (ar_pci->verified_awake)
+		return;
+
+	for (;;) {
+		if (ath10k_pci_target_is_awake(ar)) {
+			ar_pci->verified_awake = true;
+			break;
+		}
+
+		if (tot_delay > PCIE_WAKE_TIMEOUT) {
+			ath10k_warn("target takes too long to wake up (awake count %d)\n",
+				    atomic_read(&ar_pci->keep_awake_count));
+			break;
+		}
+
+		udelay(curr_delay);
+		tot_delay += curr_delay;
+
+		if (curr_delay < 50)
+			curr_delay += 5;
+	}
+}
+
+void ath10k_do_pci_sleep(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	void __iomem *pci_addr = ar_pci->mem;
+
+	if (atomic_dec_and_test(&ar_pci->keep_awake_count)) {
+		/* Allow sleep */
+		ar_pci->verified_awake = false;
+		iowrite32(PCIE_SOC_WAKE_RESET,
+			  pci_addr + PCIE_LOCAL_BASE_ADDRESS +
+			  PCIE_SOC_WAKE_ADDRESS);
+	}
+}
+
+/*
+ * FIXME: Handle OOM properly.
+ */
+static inline
+struct ath10k_pci_compl *get_free_compl(struct hif_ce_pipe_info *pipe_info)
+{
+	struct ath10k_pci_compl *compl = NULL;
+
+	spin_lock_bh(&pipe_info->pipe_lock);
+	if (list_empty(&pipe_info->compl_free)) {
+		ath10k_warn("Completion buffers are full\n");
+		goto exit;
+	}
+	compl = list_first_entry(&pipe_info->compl_free,
+				 struct ath10k_pci_compl, list);
+	list_del(&compl->list);
+exit:
+	spin_unlock_bh(&pipe_info->pipe_lock);
+	return compl;
+}
+
+/* Called by lower (CE) layer when a send to Target completes. */
+static void ath10k_pci_ce_send_done(struct ce_state *ce_state,
+				    void *transfer_context,
+				    u32 ce_data,
+				    unsigned int nbytes,
+				    unsigned int transfer_id)
+{
+	struct ath10k *ar = ce_state->ar;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct hif_ce_pipe_info *pipe_info =  &ar_pci->pipe_info[ce_state->id];
+	struct ath10k_pci_compl *compl;
+	bool process = false;
+
+	do {
+		/*
+		 * For the send completion of an item in sendlist, just
+		 * increment num_sends_allowed. The upper layer callback will
+		 * be triggered when last fragment is done with send.
+		 */
+		if (transfer_context == CE_SENDLIST_ITEM_CTXT) {
+			spin_lock_bh(&pipe_info->pipe_lock);
+			pipe_info->num_sends_allowed++;
+			spin_unlock_bh(&pipe_info->pipe_lock);
+			continue;
+		}
+
+		compl = get_free_compl(pipe_info);
+		if (!compl)
+			break;
+
+		compl->send_or_recv = HIF_CE_COMPLETE_SEND;
+		compl->ce_state = ce_state;
+		compl->pipe_info = pipe_info;
+		compl->transfer_context = transfer_context;
+		compl->nbytes = nbytes;
+		compl->transfer_id = transfer_id;
+		compl->flags = 0;
+
+		/*
+		 * Add the completion to the processing queue.
+		 */
+		spin_lock_bh(&ar_pci->compl_lock);
+		list_add_tail(&compl->list, &ar_pci->compl_process);
+		spin_unlock_bh(&ar_pci->compl_lock);
+
+		process = true;
+	} while (ath10k_ce_completed_send_next(ce_state,
+							   &transfer_context,
+							   &ce_data, &nbytes,
+							   &transfer_id) == 0);
+
+	/*
+	 * If only some of the items within a sendlist have completed,
+	 * don't invoke completion processing until the entire sendlist
+	 * has been sent.
+	 */
+	if (!process)
+		return;
+
+	ath10k_pci_process_ce(ar);
+}
+
+/* Called by lower (CE) layer when data is received from the Target. */
+static void ath10k_pci_ce_recv_data(struct ce_state *ce_state,
+				    void *transfer_context, u32 ce_data,
+				    unsigned int nbytes,
+				    unsigned int transfer_id,
+				    unsigned int flags)
+{
+	struct ath10k *ar = ce_state->ar;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct hif_ce_pipe_info *pipe_info =  &ar_pci->pipe_info[ce_state->id];
+	struct ath10k_pci_compl *compl;
+	struct sk_buff *skb;
+
+	do {
+		compl = get_free_compl(pipe_info);
+		if (!compl)
+			break;
+
+		compl->send_or_recv = HIF_CE_COMPLETE_RECV;
+		compl->ce_state = ce_state;
+		compl->pipe_info = pipe_info;
+		compl->transfer_context = transfer_context;
+		compl->nbytes = nbytes;
+		compl->transfer_id = transfer_id;
+		compl->flags = flags;
+
+		skb = transfer_context;
+		dma_unmap_single(ar->dev, ATH10K_SKB_CB(skb)->paddr,
+				 skb->len + skb_tailroom(skb),
+				 DMA_FROM_DEVICE);
+		/*
+		 * Add the completion to the processing queue.
+		 */
+		spin_lock_bh(&ar_pci->compl_lock);
+		list_add_tail(&compl->list, &ar_pci->compl_process);
+		spin_unlock_bh(&ar_pci->compl_lock);
+
+	} while (ath10k_ce_completed_recv_next(ce_state,
+							   &transfer_context,
+							   &ce_data, &nbytes,
+							   &transfer_id,
+							   &flags) == 0);
+
+	ath10k_pci_process_ce(ar);
+}
+
+/* Send the first nbytes bytes of the buffer */
+static int ath10k_pci_hif_send_head(struct ath10k *ar, u8 pipe_id,
+				    unsigned int transfer_id,
+				    unsigned int bytes, struct sk_buff *nbuf)
+{
+	struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(nbuf);
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct hif_ce_pipe_info *pipe_info = &(ar_pci->pipe_info[pipe_id]);
+	struct ce_state *ce_hdl = pipe_info->ce_hdl;
+	struct ce_sendlist sendlist;
+	unsigned int len;
+	u32 flags = 0;
+	int ret;
+
+	memset(&sendlist, 0, sizeof(struct ce_sendlist));
+
+	len = min(bytes, nbuf->len);
+	bytes -= len;
+
+	if (len & 3)
+		ath10k_warn("skb not aligned to 4-byte boundary (%d)\n", len);
+
+	ath10k_dbg(ATH10K_DBG_PCI,
+		   "pci send data vaddr %p paddr 0x%llx len %d as %d bytes\n",
+		   nbuf->data, (unsigned long long) skb_cb->paddr,
+		   nbuf->len, len);
+	ath10k_dbg_dump(ATH10K_DBG_PCI_DUMP, NULL,
+			"ath10k tx: data: ",
+			nbuf->data, nbuf->len);
+
+	ath10k_ce_sendlist_buf_add(&sendlist, skb_cb->paddr, len, flags);
+
+	/* Make sure we have resources to handle this request */
+	spin_lock_bh(&pipe_info->pipe_lock);
+	if (!pipe_info->num_sends_allowed) {
+		ath10k_warn("Pipe: %d is full\n", pipe_id);
+		spin_unlock_bh(&pipe_info->pipe_lock);
+		return -ENOSR;
+	}
+	pipe_info->num_sends_allowed--;
+	spin_unlock_bh(&pipe_info->pipe_lock);
+
+	ret = ath10k_ce_sendlist_send(ce_hdl, nbuf, &sendlist, transfer_id);
+	if (ret)
+		ath10k_warn("CE send failed: %p\n", nbuf);
+
+	return ret;
+}
+
+static u16 ath10k_pci_hif_get_free_queue_number(struct ath10k *ar, u8 pipe)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct hif_ce_pipe_info *pipe_info = &(ar_pci->pipe_info[pipe]);
+	int ret;
+
+	spin_lock_bh(&pipe_info->pipe_lock);
+	ret = pipe_info->num_sends_allowed;
+	spin_unlock_bh(&pipe_info->pipe_lock);
+
+	return ret;
+}
+
+static void ath10k_pci_hif_dump_area(struct ath10k *ar)
+{
+	u32 reg_dump_area = 0;
+	u32 reg_dump_values[REG_DUMP_COUNT_QCA988X] = {};
+	u32 host_addr;
+	int ret;
+	u32 i;
+
+	ath10k_err("firmware crashed!\n");
+	ath10k_err("hardware name %s version 0x%x\n",
+		   ar->hw_params.name, ar->target_version);
+	ath10k_err("firmware version: %u.%u.%u.%u\n", ar->fw_version_major,
+		   ar->fw_version_minor, ar->fw_version_release,
+		   ar->fw_version_build);
+
+	host_addr = host_interest_item_address(HI_ITEM(hi_failure_state));
+	if (ath10k_pci_diag_read_mem(ar, host_addr,
+				     &reg_dump_area, sizeof(u32)) != 0) {
+		ath10k_warn("could not read hi_failure_state\n");
+		return;
+	}
+
+	ath10k_err("target register Dump Location: 0x%08X\n", reg_dump_area);
+
+	ret = ath10k_pci_diag_read_mem(ar, reg_dump_area,
+				       &reg_dump_values[0],
+				       REG_DUMP_COUNT_QCA988X * sizeof(u32));
+	if (ret != 0) {
+		ath10k_err("could not dump FW Dump Area\n");
+		return;
+	}
+
+	BUILD_BUG_ON(REG_DUMP_COUNT_QCA988X % 4);
+
+	ath10k_err("target Register Dump\n");
+	for (i = 0; i < REG_DUMP_COUNT_QCA988X; i += 4)
+		ath10k_err("[%02d]: 0x%08X 0x%08X 0x%08X 0x%08X\n",
+			   i,
+			   reg_dump_values[i],
+			   reg_dump_values[i + 1],
+			   reg_dump_values[i + 2],
+			   reg_dump_values[i + 3]);
+}
+
+static void ath10k_pci_hif_send_complete_check(struct ath10k *ar, u8 pipe,
+					       int force)
+{
+	if (!force) {
+		int resources;
+		/*
+		 * Decide whether to actually poll for completions, or just
+		 * wait for a later chance.
+		 * If there seem to be plenty of resources left, then just wait
+		 * since checking involves reading a CE register, which is a
+		 * relatively expensive operation.
+		 */
+		resources = ath10k_pci_hif_get_free_queue_number(ar, pipe);
+
+		/*
+		 * If at least 50% of the total resources are still available,
+		 * don't bother checking again yet.
+		 */
+		if (resources > (host_ce_config_wlan[pipe].src_nentries >> 1))
+			return;
+	}
+	ath10k_ce_per_engine_service(ar, pipe);
+}
+
+static void ath10k_pci_hif_post_init(struct ath10k *ar,
+				     struct ath10k_hif_cb *callbacks)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+
+	ath10k_dbg(ATH10K_DBG_PCI, "%s\n", __func__);
+
+	memcpy(&ar_pci->msg_callbacks_current, callbacks,
+	       sizeof(ar_pci->msg_callbacks_current));
+}
+
+static int ath10k_pci_start_ce(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct ce_state *ce_diag = ar_pci->ce_diag;
+	const struct ce_attr *attr;
+	struct hif_ce_pipe_info *pipe_info;
+	struct ath10k_pci_compl *compl;
+	int i, pipe_num, completions, disable_interrupts;
+
+	spin_lock_init(&ar_pci->compl_lock);
+	INIT_LIST_HEAD(&ar_pci->compl_process);
+
+	for (pipe_num = 0; pipe_num < ar_pci->ce_count; pipe_num++) {
+		pipe_info = &ar_pci->pipe_info[pipe_num];
+
+		spin_lock_init(&pipe_info->pipe_lock);
+		INIT_LIST_HEAD(&pipe_info->compl_free);
+
+		/* Handle Diagnostic CE specially */
+		if (pipe_info->ce_hdl == ce_diag)
+			continue;
+
+		attr = &host_ce_config_wlan[pipe_num];
+		completions = 0;
+
+		if (attr->src_nentries) {
+			disable_interrupts = attr->flags & CE_ATTR_DIS_INTR;
+			ath10k_ce_send_cb_register(pipe_info->ce_hdl,
+						   ath10k_pci_ce_send_done,
+						   disable_interrupts);
+			completions += attr->src_nentries;
+			pipe_info->num_sends_allowed = attr->src_nentries - 1;
+		}
+
+		if (attr->dest_nentries) {
+			ath10k_ce_recv_cb_register(pipe_info->ce_hdl,
+						   ath10k_pci_ce_recv_data);
+			completions += attr->dest_nentries;
+		}
+
+		if (completions == 0)
+			continue;
+
+		for (i = 0; i < completions; i++) {
+			compl = kmalloc(sizeof(struct ath10k_pci_compl),
+					GFP_KERNEL);
+			if (!compl) {
+				ath10k_warn("No memory for completion state\n");
+				ath10k_pci_stop_ce(ar);
+				return -ENOMEM;
+			}
+
+			compl->send_or_recv = HIF_CE_COMPLETE_FREE;
+			list_add_tail(&compl->list, &pipe_info->compl_free);
+		}
+	}
+
+	return 0;
+}
+
+static void ath10k_pci_stop_ce(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct ath10k_pci_compl *compl;
+	struct sk_buff *skb;
+	int i;
+
+	ath10k_ce_disable_interrupts(ar);
+
+	/* Cancel the pending tasklet */
+	tasklet_kill(&ar_pci->intr_tq);
+
+	for (i = 0; i < CE_COUNT; i++)
+		tasklet_kill(&ar_pci->pipe_info[i].intr);
+
+	/* Mark pending completions as aborted, so that upper layers free up
+	 * their associated resources */
+	spin_lock_bh(&ar_pci->compl_lock);
+	list_for_each_entry(compl, &ar_pci->compl_process, list) {
+		skb = (struct sk_buff *)compl->transfer_context;
+		ATH10K_SKB_CB(skb)->is_aborted = true;
+	}
+	spin_unlock_bh(&ar_pci->compl_lock);
+}
+
+static void ath10k_pci_cleanup_ce(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct ath10k_pci_compl *compl, *tmp;
+	struct hif_ce_pipe_info *pipe_info;
+	struct sk_buff *netbuf;
+	int pipe_num;
+
+	/* Free pending completions. */
+	spin_lock_bh(&ar_pci->compl_lock);
+	if (!list_empty(&ar_pci->compl_process))
+		ath10k_warn("pending completions still present! possible memory leaks.\n");
+
+	list_for_each_entry_safe(compl, tmp, &ar_pci->compl_process, list) {
+		list_del(&compl->list);
+		netbuf = (struct sk_buff *)compl->transfer_context;
+		dev_kfree_skb_any(netbuf);
+		kfree(compl);
+	}
+	spin_unlock_bh(&ar_pci->compl_lock);
+
+	/* Free unused completions for each pipe. */
+	for (pipe_num = 0; pipe_num < ar_pci->ce_count; pipe_num++) {
+		pipe_info = &ar_pci->pipe_info[pipe_num];
+
+		spin_lock_bh(&pipe_info->pipe_lock);
+		list_for_each_entry_safe(compl, tmp,
+					 &pipe_info->compl_free, list) {
+			list_del(&compl->list);
+			kfree(compl);
+		}
+		spin_unlock_bh(&pipe_info->pipe_lock);
+	}
+}
+
+static void ath10k_pci_process_ce(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ar->hif.priv;
+	struct ath10k_hif_cb *cb = &ar_pci->msg_callbacks_current;
+	struct ath10k_pci_compl *compl;
+	struct sk_buff *skb;
+	unsigned int nbytes;
+	int ret, send_done = 0;
+
+	/* Upper layers aren't ready to handle tx/rx completions in parallel so
+	 * we must serialize all completion processing. */
+
+	spin_lock_bh(&ar_pci->compl_lock);
+	if (ar_pci->compl_processing) {
+		spin_unlock_bh(&ar_pci->compl_lock);
+		return;
+	}
+	ar_pci->compl_processing = true;
+	spin_unlock_bh(&ar_pci->compl_lock);
+
+	for (;;) {
+		spin_lock_bh(&ar_pci->compl_lock);
+		if (list_empty(&ar_pci->compl_process)) {
+			spin_unlock_bh(&ar_pci->compl_lock);
+			break;
+		}
+		compl = list_first_entry(&ar_pci->compl_process,
+					 struct ath10k_pci_compl, list);
+		list_del(&compl->list);
+		spin_unlock_bh(&ar_pci->compl_lock);
+
+		if (compl->send_or_recv == HIF_CE_COMPLETE_SEND) {
+			cb->tx_completion(ar,
+					  compl->transfer_context,
+					  compl->transfer_id);
+			send_done = 1;
+		} else {
+			ret = ath10k_pci_post_rx_pipe(compl->pipe_info, 1);
+			if (ret) {
+				ath10k_warn("Unable to post recv buffer for pipe: %d\n",
+					    compl->pipe_info->pipe_num);
+				break;
+			}
+
+			skb = (struct sk_buff *)compl->transfer_context;
+			nbytes = compl->nbytes;
+
+			ath10k_dbg(ATH10K_DBG_PCI,
+				   "ath10k_pci_ce_recv_data netbuf=%p  nbytes=%d\n",
+				   skb, nbytes);
+			ath10k_dbg_dump(ATH10K_DBG_PCI_DUMP, NULL,
+					"ath10k rx: ", skb->data, nbytes);
+
+			if (skb->len + skb_tailroom(skb) >= nbytes) {
+				skb_trim(skb, 0);
+				skb_put(skb, nbytes);
+				cb->rx_completion(ar, skb,
+						  compl->pipe_info->pipe_num);
+			} else {
+				ath10k_warn("rxed more than expected (nbytes %d, max %d)",
+					    nbytes,
+					    skb->len + skb_tailroom(skb));
+			}
+		}
+
+		compl->send_or_recv = HIF_CE_COMPLETE_FREE;
+
+		/*
+		 * Add completion back to the pipe's free list.
+		 */
+		spin_lock_bh(&compl->pipe_info->pipe_lock);
+		list_add_tail(&compl->list, &compl->pipe_info->compl_free);
+		compl->pipe_info->num_sends_allowed += send_done;
+		spin_unlock_bh(&compl->pipe_info->pipe_lock);
+	}
+
+	spin_lock_bh(&ar_pci->compl_lock);
+	ar_pci->compl_processing = false;
+	spin_unlock_bh(&ar_pci->compl_lock);
+}
+
+/* TODO - temporary mapping while we have too few CE's */
+static int ath10k_pci_hif_map_service_to_pipe(struct ath10k *ar,
+					      u16 service_id, u8 *ul_pipe,
+					      u8 *dl_pipe, int *ul_is_polled,
+					      int *dl_is_polled)
+{
+	int ret = 0;
+
+	/* polling for received messages not supported */
+	*dl_is_polled = 0;
+
+	switch (service_id) {
+	case ATH10K_HTC_SVC_ID_HTT_DATA_MSG:
+		/*
+		 * Host->target HTT gets its own pipe, so it can be polled
+		 * while other pipes are interrupt driven.
+		 */
+		*ul_pipe = 4;
+		/*
+		 * Use the same target->host pipe for HTC ctrl, HTC raw
+		 * streams, and HTT.
+		 */
+		*dl_pipe = 1;
+		break;
+
+	case ATH10K_HTC_SVC_ID_RSVD_CTRL:
+	case ATH10K_HTC_SVC_ID_TEST_RAW_STREAMS:
+		/*
+		 * Note: HTC_RAW_STREAMS_SVC is currently unused, and
+		 * HTC_CTRL_RSVD_SVC could share the same pipe as the
+		 * WMI services.  So, if another CE is needed, change
+		 * this to *ul_pipe = 3, which frees up CE 0.
+		 */
+		/* *ul_pipe = 3; */
+		*ul_pipe = 0;
+		*dl_pipe = 1;
+		break;
+
+	case ATH10K_HTC_SVC_ID_WMI_DATA_BK:
+	case ATH10K_HTC_SVC_ID_WMI_DATA_BE:
+	case ATH10K_HTC_SVC_ID_WMI_DATA_VI:
+	case ATH10K_HTC_SVC_ID_WMI_DATA_VO:
+
+	case ATH10K_HTC_SVC_ID_WMI_CONTROL:
+		*ul_pipe = 3;
+		*dl_pipe = 2;
+		break;
+
+		/* pipe 5 unused   */
+		/* pipe 6 reserved */
+		/* pipe 7 reserved */
+
+	default:
+		ret = -1;
+		break;
+	}
+	*ul_is_polled =
+		(host_ce_config_wlan[*ul_pipe].flags & CE_ATTR_DIS_INTR) != 0;
+
+	return ret;
+}
+
+static void ath10k_pci_hif_get_default_pipe(struct ath10k *ar,
+						u8 *ul_pipe, u8 *dl_pipe)
+{
+	int ul_is_polled, dl_is_polled;
+
+	(void)ath10k_pci_hif_map_service_to_pipe(ar,
+						 ATH10K_HTC_SVC_ID_RSVD_CTRL,
+						 ul_pipe,
+						 dl_pipe,
+						 &ul_is_polled,
+						 &dl_is_polled);
+}
+
+static int ath10k_pci_post_rx_pipe(struct hif_ce_pipe_info *pipe_info,
+				   int num)
+{
+	struct ath10k *ar = pipe_info->hif_ce_state;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct ce_state *ce_state = pipe_info->ce_hdl;
+	struct sk_buff *skb;
+	dma_addr_t ce_data;
+	int i, ret = 0;
+
+	if (pipe_info->buf_sz == 0)
+		return 0;
+
+	for (i = 0; i < num; i++) {
+		skb = dev_alloc_skb(pipe_info->buf_sz);
+		if (!skb) {
+			ath10k_warn("could not allocate skbuff for pipe %d\n",
+				    num);
+			ret = -ENOMEM;
+			goto err;
+		}
+
+		WARN_ONCE((unsigned long)skb->data & 3, "unaligned skb");
+
+		ce_data = dma_map_single(ar->dev, skb->data,
+					 skb->len + skb_tailroom(skb),
+					 DMA_FROM_DEVICE);
+
+		if (unlikely(dma_mapping_error(ar->dev, ce_data))) {
+			ath10k_warn("could not dma map skbuff\n");
+			dev_kfree_skb_any(skb);
+			ret = -EIO;
+			goto err;
+		}
+
+		ATH10K_SKB_CB(skb)->paddr = ce_data;
+
+		pci_dma_sync_single_for_device(ar_pci->pdev, ce_data,
+					       pipe_info->buf_sz,
+					       PCI_DMA_FROMDEVICE);
+
+		ret = ath10k_ce_recv_buf_enqueue(ce_state, (void *)skb,
+						 ce_data);
+		if (ret) {
+			ath10k_warn("could not enqueue to pipe %d (%d)\n",
+				    num, ret);
+			goto err;
+		}
+	}
+
+	return ret;
+
+err:
+	ath10k_pci_rx_pipe_cleanup(pipe_info);
+	return ret;
+}
+
+static int ath10k_pci_post_rx(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct hif_ce_pipe_info *pipe_info;
+	const struct ce_attr *attr;
+	int pipe_num, ret = 0;
+
+	for (pipe_num = 0; pipe_num < ar_pci->ce_count; pipe_num++) {
+		pipe_info = &ar_pci->pipe_info[pipe_num];
+		attr = &host_ce_config_wlan[pipe_num];
+
+		if (attr->dest_nentries == 0)
+			continue;
+
+		ret = ath10k_pci_post_rx_pipe(pipe_info,
+					      attr->dest_nentries - 1);
+		if (ret) {
+			ath10k_warn("Unable to replenish recv buffers for pipe: %d\n",
+				    pipe_num);
+
+			for (; pipe_num >= 0; pipe_num--) {
+				pipe_info = &ar_pci->pipe_info[pipe_num];
+				ath10k_pci_rx_pipe_cleanup(pipe_info);
+			}
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+static int ath10k_pci_hif_start(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int ret;
+
+	ret = ath10k_pci_start_ce(ar);
+	if (ret) {
+		ath10k_warn("could not start CE (%d)\n", ret);
+		return ret;
+	}
+
+	/* Post buffers once to start things off. */
+	ret = ath10k_pci_post_rx(ar);
+	if (ret) {
+		ath10k_warn("could not post rx pipes (%d)\n", ret);
+		return ret;
+	}
+
+	ar_pci->started = 1;
+	return 0;
+}
+
+static void ath10k_pci_rx_pipe_cleanup(struct hif_ce_pipe_info *pipe_info)
+{
+	struct ath10k *ar;
+	struct ath10k_pci *ar_pci;
+	struct ce_state *ce_hdl;
+	u32 buf_sz;
+	struct sk_buff *netbuf;
+	u32 ce_data;
+
+	buf_sz = pipe_info->buf_sz;
+
+	/* Unused Copy Engine */
+	if (buf_sz == 0)
+		return;
+
+	ar = pipe_info->hif_ce_state;
+	ar_pci = ath10k_pci_priv(ar);
+
+	if (!ar_pci->started)
+		return;
+
+	ce_hdl = pipe_info->ce_hdl;
+
+	while (ath10k_ce_revoke_recv_next(ce_hdl, (void **)&netbuf,
+					  &ce_data) == 0) {
+		dma_unmap_single(ar->dev, ATH10K_SKB_CB(netbuf)->paddr,
+				 netbuf->len + skb_tailroom(netbuf),
+				 DMA_FROM_DEVICE);
+		dev_kfree_skb_any(netbuf);
+	}
+}
+
+static void ath10k_pci_tx_pipe_cleanup(struct hif_ce_pipe_info *pipe_info)
+{
+	struct ath10k *ar;
+	struct ath10k_pci *ar_pci;
+	struct ce_state *ce_hdl;
+	struct sk_buff *netbuf;
+	u32 ce_data;
+	unsigned int nbytes;
+	unsigned int id;
+	u32 buf_sz;
+
+	buf_sz = pipe_info->buf_sz;
+
+	/* Unused Copy Engine */
+	if (buf_sz == 0)
+		return;
+
+	ar = pipe_info->hif_ce_state;
+	ar_pci = ath10k_pci_priv(ar);
+
+	if (!ar_pci->started)
+		return;
+
+	ce_hdl = pipe_info->ce_hdl;
+
+	while (ath10k_ce_cancel_send_next(ce_hdl, (void **)&netbuf,
+					  &ce_data, &nbytes, &id) == 0) {
+		if (netbuf != CE_SENDLIST_ITEM_CTXT)
+			/*
+			 * Indicate the completion to higer layer to free
+			 * the buffer
+			 */
+			ATH10K_SKB_CB(netbuf)->is_aborted = true;
+			ar_pci->msg_callbacks_current.tx_completion(ar,
+								    netbuf,
+								    id);
+	}
+}
+
+/*
+ * Cleanup residual buffers for device shutdown:
+ *    buffers that were enqueued for receive
+ *    buffers that were to be sent
+ * Note: Buffers that had completed but which were
+ * not yet processed are on a completion queue. They
+ * are handled when the completion thread shuts down.
+ */
+static void ath10k_pci_buffer_cleanup(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int pipe_num;
+
+	for (pipe_num = 0; pipe_num < ar_pci->ce_count; pipe_num++) {
+		struct hif_ce_pipe_info *pipe_info;
+
+		pipe_info = &ar_pci->pipe_info[pipe_num];
+		ath10k_pci_rx_pipe_cleanup(pipe_info);
+		ath10k_pci_tx_pipe_cleanup(pipe_info);
+	}
+}
+
+static void ath10k_pci_ce_deinit(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct hif_ce_pipe_info *pipe_info;
+	int pipe_num;
+
+	for (pipe_num = 0; pipe_num < ar_pci->ce_count; pipe_num++) {
+		pipe_info = &ar_pci->pipe_info[pipe_num];
+		if (pipe_info->ce_hdl) {
+			ath10k_ce_deinit(pipe_info->ce_hdl);
+			pipe_info->ce_hdl = NULL;
+			pipe_info->buf_sz = 0;
+		}
+	}
+}
+
+static void ath10k_pci_hif_stop(struct ath10k *ar)
+{
+	ath10k_dbg(ATH10K_DBG_PCI, "%s\n", __func__);
+
+	ath10k_pci_stop_ce(ar);
+
+	/* At this point, asynchronous threads are stopped, the target should
+	 * not DMA nor interrupt. We process the leftovers and then free
+	 * everything else up. */
+
+	ath10k_pci_process_ce(ar);
+	ath10k_pci_cleanup_ce(ar);
+	ath10k_pci_buffer_cleanup(ar);
+	ath10k_pci_ce_deinit(ar);
+}
+
+static int ath10k_pci_hif_exchange_bmi_msg(struct ath10k *ar,
+					   void *req, u32 req_len,
+					   void *resp, u32 *resp_len)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct ce_state *ce_tx = ar_pci->pipe_info[BMI_CE_NUM_TO_TARG].ce_hdl;
+	struct ce_state *ce_rx = ar_pci->pipe_info[BMI_CE_NUM_TO_HOST].ce_hdl;
+	dma_addr_t req_paddr = 0;
+	dma_addr_t resp_paddr = 0;
+	struct bmi_xfer xfer = {};
+	void *treq, *tresp = NULL;
+	int ret = 0;
+
+	if (resp && !resp_len)
+		return -EINVAL;
+
+	if (resp && resp_len && *resp_len == 0)
+		return -EINVAL;
+
+	treq = kmemdup(req, req_len, GFP_KERNEL);
+	if (!treq)
+		return -ENOMEM;
+
+	req_paddr = dma_map_single(ar->dev, treq, req_len, DMA_TO_DEVICE);
+	ret = dma_mapping_error(ar->dev, req_paddr);
+	if (ret)
+		goto err_dma;
+
+	if (resp && resp_len) {
+		tresp = kzalloc(*resp_len, GFP_KERNEL);
+		if (!tresp) {
+			ret = -ENOMEM;
+			goto err_req;
+		}
+
+		resp_paddr = dma_map_single(ar->dev, tresp, *resp_len,
+					    DMA_FROM_DEVICE);
+		ret = dma_mapping_error(ar->dev, resp_paddr);
+		if (ret)
+			goto err_req;
+
+		xfer.wait_for_resp = true;
+		xfer.resp_len = 0;
+
+		ath10k_ce_recv_buf_enqueue(ce_rx, &xfer, resp_paddr);
+	}
+
+	init_completion(&xfer.done);
+
+	ret = ath10k_ce_send(ce_tx, &xfer, req_paddr, req_len, -1, 0);
+	if (ret)
+		goto err_resp;
+
+	ret = wait_for_completion_timeout(&xfer.done,
+					  BMI_COMMUNICATION_TIMEOUT_HZ);
+	if (ret <= 0) {
+		u32 unused_buffer;
+		unsigned int unused_nbytes;
+		unsigned int unused_id;
+
+		ret = -ETIMEDOUT;
+		ath10k_ce_cancel_send_next(ce_tx, NULL, &unused_buffer,
+					   &unused_nbytes, &unused_id);
+	} else {
+		/* non-zero means we did not time out */
+		ret = 0;
+	}
+
+err_resp:
+	if (resp) {
+		u32 unused_buffer;
+
+		ath10k_ce_revoke_recv_next(ce_rx, NULL, &unused_buffer);
+		dma_unmap_single(ar->dev, resp_paddr,
+				 *resp_len, DMA_FROM_DEVICE);
+	}
+err_req:
+	dma_unmap_single(ar->dev, req_paddr, req_len, DMA_TO_DEVICE);
+
+	if (ret == 0 && resp_len) {
+		*resp_len = min(*resp_len, xfer.resp_len);
+		memcpy(resp, tresp, xfer.resp_len);
+	}
+err_dma:
+	kfree(treq);
+	kfree(tresp);
+
+	return ret;
+}
+
+static void ath10k_pci_bmi_send_done(struct ce_state *ce_state,
+				     void *transfer_context,
+				     u32 data,
+				     unsigned int nbytes,
+				     unsigned int transfer_id)
+{
+	struct bmi_xfer *xfer = transfer_context;
+
+	if (xfer->wait_for_resp)
+		return;
+
+	complete(&xfer->done);
+}
+
+static void ath10k_pci_bmi_recv_data(struct ce_state *ce_state,
+				     void *transfer_context,
+				     u32 data,
+				     unsigned int nbytes,
+				     unsigned int transfer_id,
+				     unsigned int flags)
+{
+	struct bmi_xfer *xfer = transfer_context;
+
+	if (!xfer->wait_for_resp) {
+		ath10k_warn("unexpected: BMI data received; ignoring\n");
+		return;
+	}
+
+	xfer->resp_len = nbytes;
+	complete(&xfer->done);
+}
+
+/*
+ * Map from service/endpoint to Copy Engine.
+ * This table is derived from the CE_PCI TABLE, above.
+ * It is passed to the Target at startup for use by firmware.
+ */
+static const struct service_to_pipe target_service_to_ce_map_wlan[] = {
+	{
+		 ATH10K_HTC_SVC_ID_WMI_DATA_VO,
+		 PIPEDIR_OUT,		/* out = UL = host -> target */
+		 3,
+	},
+	{
+		 ATH10K_HTC_SVC_ID_WMI_DATA_VO,
+		 PIPEDIR_IN,		/* in = DL = target -> host */
+		 2,
+	},
+	{
+		 ATH10K_HTC_SVC_ID_WMI_DATA_BK,
+		 PIPEDIR_OUT,		/* out = UL = host -> target */
+		 3,
+	},
+	{
+		 ATH10K_HTC_SVC_ID_WMI_DATA_BK,
+		 PIPEDIR_IN,		/* in = DL = target -> host */
+		 2,
+	},
+	{
+		 ATH10K_HTC_SVC_ID_WMI_DATA_BE,
+		 PIPEDIR_OUT,		/* out = UL = host -> target */
+		 3,
+	},
+	{
+		 ATH10K_HTC_SVC_ID_WMI_DATA_BE,
+		 PIPEDIR_IN,		/* in = DL = target -> host */
+		 2,
+	},
+	{
+		 ATH10K_HTC_SVC_ID_WMI_DATA_VI,
+		 PIPEDIR_OUT,		/* out = UL = host -> target */
+		 3,
+	},
+	{
+		 ATH10K_HTC_SVC_ID_WMI_DATA_VI,
+		 PIPEDIR_IN,		/* in = DL = target -> host */
+		 2,
+	},
+	{
+		 ATH10K_HTC_SVC_ID_WMI_CONTROL,
+		 PIPEDIR_OUT,		/* out = UL = host -> target */
+		 3,
+	},
+	{
+		 ATH10K_HTC_SVC_ID_WMI_CONTROL,
+		 PIPEDIR_IN,		/* in = DL = target -> host */
+		 2,
+	},
+	{
+		 ATH10K_HTC_SVC_ID_RSVD_CTRL,
+		 PIPEDIR_OUT,		/* out = UL = host -> target */
+		 0,		/* could be moved to 3 (share with WMI) */
+	},
+	{
+		 ATH10K_HTC_SVC_ID_RSVD_CTRL,
+		 PIPEDIR_IN,		/* in = DL = target -> host */
+		 1,
+	},
+	{
+		 ATH10K_HTC_SVC_ID_TEST_RAW_STREAMS,	/* not currently used */
+		 PIPEDIR_OUT,		/* out = UL = host -> target */
+		 0,
+	},
+	{
+		 ATH10K_HTC_SVC_ID_TEST_RAW_STREAMS,	/* not currently used */
+		 PIPEDIR_IN,		/* in = DL = target -> host */
+		 1,
+	},
+	{
+		 ATH10K_HTC_SVC_ID_HTT_DATA_MSG,
+		 PIPEDIR_OUT,		/* out = UL = host -> target */
+		 4,
+	},
+	{
+		 ATH10K_HTC_SVC_ID_HTT_DATA_MSG,
+		 PIPEDIR_IN,		/* in = DL = target -> host */
+		 1,
+	},
+
+	/* (Additions here) */
+
+	{				/* Must be last */
+		 0,
+		 0,
+		 0,
+	},
+};
+
+/*
+ * Send an interrupt to the device to wake up the Target CPU
+ * so it has an opportunity to notice any changed state.
+ */
+static int ath10k_pci_wake_target_cpu(struct ath10k *ar)
+{
+	int ret;
+	u32 core_ctrl;
+
+	ret = ath10k_pci_diag_read_access(ar, SOC_CORE_BASE_ADDRESS |
+					      CORE_CTRL_ADDRESS,
+					  &core_ctrl);
+	if (ret) {
+		ath10k_warn("Unable to read core ctrl\n");
+		return ret;
+	}
+
+	/* A_INUM_FIRMWARE interrupt to Target CPU */
+	core_ctrl |= CORE_CTRL_CPU_INTR_MASK;
+
+	ret = ath10k_pci_diag_write_access(ar, SOC_CORE_BASE_ADDRESS |
+					       CORE_CTRL_ADDRESS,
+					   core_ctrl);
+	if (ret)
+		ath10k_warn("Unable to set interrupt mask\n");
+
+	return ret;
+}
+
+static int ath10k_pci_init_config(struct ath10k *ar)
+{
+	u32 interconnect_targ_addr;
+	u32 pcie_state_targ_addr = 0;
+	u32 pipe_cfg_targ_addr = 0;
+	u32 svc_to_pipe_map = 0;
+	u32 pcie_config_flags = 0;
+	u32 ealloc_value;
+	u32 ealloc_targ_addr;
+	u32 flag2_value;
+	u32 flag2_targ_addr;
+	int ret = 0;
+
+	/* Download to Target the CE Config and the service-to-CE map */
+	interconnect_targ_addr =
+		host_interest_item_address(HI_ITEM(hi_interconnect_state));
+
+	/* Supply Target-side CE configuration */
+	ret = ath10k_pci_diag_read_access(ar, interconnect_targ_addr,
+					  &pcie_state_targ_addr);
+	if (ret != 0) {
+		ath10k_err("Failed to get pcie state addr: %d\n", ret);
+		return ret;
+	}
+
+	if (pcie_state_targ_addr == 0) {
+		ret = -EIO;
+		ath10k_err("Invalid pcie state addr\n");
+		return ret;
+	}
+
+	ret = ath10k_pci_diag_read_access(ar, pcie_state_targ_addr +
+					  offsetof(struct pcie_state,
+						   pipe_cfg_addr),
+					  &pipe_cfg_targ_addr);
+	if (ret != 0) {
+		ath10k_err("Failed to get pipe cfg addr: %d\n", ret);
+		return ret;
+	}
+
+	if (pipe_cfg_targ_addr == 0) {
+		ret = -EIO;
+		ath10k_err("Invalid pipe cfg addr\n");
+		return ret;
+	}
+
+	ret = ath10k_pci_diag_write_mem(ar, pipe_cfg_targ_addr,
+				 target_ce_config_wlan,
+				 sizeof(target_ce_config_wlan));
+
+	if (ret != 0) {
+		ath10k_err("Failed to write pipe cfg: %d\n", ret);
+		return ret;
+	}
+
+	ret = ath10k_pci_diag_read_access(ar, pcie_state_targ_addr +
+					  offsetof(struct pcie_state,
+						   svc_to_pipe_map),
+					  &svc_to_pipe_map);
+	if (ret != 0) {
+		ath10k_err("Failed to get svc/pipe map: %d\n", ret);
+		return ret;
+	}
+
+	if (svc_to_pipe_map == 0) {
+		ret = -EIO;
+		ath10k_err("Invalid svc_to_pipe map\n");
+		return ret;
+	}
+
+	ret = ath10k_pci_diag_write_mem(ar, svc_to_pipe_map,
+				 target_service_to_ce_map_wlan,
+				 sizeof(target_service_to_ce_map_wlan));
+	if (ret != 0) {
+		ath10k_err("Failed to write svc/pipe map: %d\n", ret);
+		return ret;
+	}
+
+	ret = ath10k_pci_diag_read_access(ar, pcie_state_targ_addr +
+					  offsetof(struct pcie_state,
+						   config_flags),
+					  &pcie_config_flags);
+	if (ret != 0) {
+		ath10k_err("Failed to get pcie config_flags: %d\n", ret);
+		return ret;
+	}
+
+	pcie_config_flags &= ~PCIE_CONFIG_FLAG_ENABLE_L1;
+
+	ret = ath10k_pci_diag_write_mem(ar, pcie_state_targ_addr +
+				 offsetof(struct pcie_state, config_flags),
+				 &pcie_config_flags,
+				 sizeof(pcie_config_flags));
+	if (ret != 0) {
+		ath10k_err("Failed to write pcie config_flags: %d\n", ret);
+		return ret;
+	}
+
+	/* configure early allocation */
+	ealloc_targ_addr = host_interest_item_address(HI_ITEM(hi_early_alloc));
+
+	ret = ath10k_pci_diag_read_access(ar, ealloc_targ_addr, &ealloc_value);
+	if (ret != 0) {
+		ath10k_err("Faile to get early alloc val: %d\n", ret);
+		return ret;
+	}
+
+	/* first bank is switched to IRAM */
+	ealloc_value |= ((HI_EARLY_ALLOC_MAGIC << HI_EARLY_ALLOC_MAGIC_SHIFT) &
+			 HI_EARLY_ALLOC_MAGIC_MASK);
+	ealloc_value |= ((1 << HI_EARLY_ALLOC_IRAM_BANKS_SHIFT) &
+			 HI_EARLY_ALLOC_IRAM_BANKS_MASK);
+
+	ret = ath10k_pci_diag_write_access(ar, ealloc_targ_addr, ealloc_value);
+	if (ret != 0) {
+		ath10k_err("Failed to set early alloc val: %d\n", ret);
+		return ret;
+	}
+
+	/* Tell Target to proceed with initialization */
+	flag2_targ_addr = host_interest_item_address(HI_ITEM(hi_option_flag2));
+
+	ret = ath10k_pci_diag_read_access(ar, flag2_targ_addr, &flag2_value);
+	if (ret != 0) {
+		ath10k_err("Failed to get option val: %d\n", ret);
+		return ret;
+	}
+
+	flag2_value |= HI_OPTION_EARLY_CFG_DONE;
+
+	ret = ath10k_pci_diag_write_access(ar, flag2_targ_addr, flag2_value);
+	if (ret != 0) {
+		ath10k_err("Failed to set option val: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+
+
+static int ath10k_pci_ce_init(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	struct hif_ce_pipe_info *pipe_info;
+	const struct ce_attr *attr;
+	int pipe_num;
+
+	for (pipe_num = 0; pipe_num < ar_pci->ce_count; pipe_num++) {
+		pipe_info = &ar_pci->pipe_info[pipe_num];
+		pipe_info->pipe_num = pipe_num;
+		pipe_info->hif_ce_state = ar;
+		attr = &host_ce_config_wlan[pipe_num];
+
+		pipe_info->ce_hdl = ath10k_ce_init(ar, pipe_num, attr);
+		if (pipe_info->ce_hdl == NULL) {
+			ath10k_err("Unable to initialize CE for pipe: %d\n",
+				   pipe_num);
+
+			/* It is safe to call it here. It checks if ce_hdl is
+			 * valid for each pipe */
+			ath10k_pci_ce_deinit(ar);
+			return -1;
+		}
+
+		if (pipe_num == ar_pci->ce_count - 1) {
+			/*
+			 * Reserve the ultimate CE for
+			 * diagnostic Window support
+			 */
+			ar_pci->ce_diag =
+			ar_pci->pipe_info[ar_pci->ce_count - 1].ce_hdl;
+			continue;
+		}
+
+		pipe_info->buf_sz = (size_t) (attr->src_sz_max);
+	}
+
+	/*
+	 * Initially, establish CE completion handlers for use with BMI.
+	 * These are overwritten with generic handlers after we exit BMI phase.
+	 */
+	pipe_info = &ar_pci->pipe_info[BMI_CE_NUM_TO_TARG];
+	ath10k_ce_send_cb_register(pipe_info->ce_hdl,
+				   ath10k_pci_bmi_send_done, 0);
+
+	pipe_info = &ar_pci->pipe_info[BMI_CE_NUM_TO_HOST];
+	ath10k_ce_recv_cb_register(pipe_info->ce_hdl,
+				   ath10k_pci_bmi_recv_data);
+
+	return 0;
+}
+
+static void ath10k_pci_fw_interrupt_handler(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	u32 fw_indicator_address, fw_indicator;
+
+	ath10k_pci_wake(ar);
+
+	fw_indicator_address = ar_pci->fw_indicator_address;
+	fw_indicator = ath10k_pci_read32(ar, fw_indicator_address);
+
+	if (fw_indicator & FW_IND_EVENT_PENDING) {
+		/* ACK: clear Target-side pending event */
+		ath10k_pci_write32(ar, fw_indicator_address,
+				   fw_indicator & ~FW_IND_EVENT_PENDING);
+
+		if (ar_pci->started) {
+			ath10k_pci_hif_dump_area(ar);
+		} else {
+			/*
+			 * Probable Target failure before we're prepared
+			 * to handle it.  Generally unexpected.
+			 */
+			ath10k_warn("early firmware event indicated\n");
+		}
+	}
+
+	ath10k_pci_sleep(ar);
+}
+
+static const struct ath10k_hif_ops ath10k_pci_hif_ops = {
+	.send_head		= ath10k_pci_hif_send_head,
+	.exchange_bmi_msg	= ath10k_pci_hif_exchange_bmi_msg,
+	.start			= ath10k_pci_hif_start,
+	.stop			= ath10k_pci_hif_stop,
+	.map_service_to_pipe	= ath10k_pci_hif_map_service_to_pipe,
+	.get_default_pipe	= ath10k_pci_hif_get_default_pipe,
+	.send_complete_check	= ath10k_pci_hif_send_complete_check,
+	.init			= ath10k_pci_hif_post_init,
+	.get_free_queue_number	= ath10k_pci_hif_get_free_queue_number,
+};
+
+static void ath10k_pci_ce_tasklet(unsigned long ptr)
+{
+	struct hif_ce_pipe_info *pipe = (struct hif_ce_pipe_info *)ptr;
+	struct ath10k_pci *ar_pci = pipe->ar_pci;
+
+	ath10k_ce_per_engine_service(ar_pci->ar, pipe->pipe_num);
+}
+
+static void ath10k_msi_err_tasklet(unsigned long data)
+{
+	struct ath10k *ar = (struct ath10k *)data;
+
+	ath10k_pci_fw_interrupt_handler(ar);
+}
+
+/*
+ * Handler for a per-engine interrupt on a PARTICULAR CE.
+ * This is used in cases where each CE has a private MSI interrupt.
+ */
+static irqreturn_t ath10k_pci_per_engine_handler(int irq, void *arg)
+{
+	struct ath10k *ar = arg;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int ce_id = irq - ar_pci->pdev->irq - MSI_ASSIGN_CE_INITIAL;
+
+	if (ce_id < 0 || ce_id > ARRAY_SIZE(ar_pci->pipe_info)) {
+		ath10k_warn("unexpected/invalid irq %d ce_id %d\n", irq, ce_id);
+		return IRQ_HANDLED;
+	}
+
+	/*
+	 * NOTE: We are able to derive ce_id from irq because we
+	 * use a one-to-one mapping for CE's 0..5.
+	 * CE's 6 & 7 do not use interrupts at all.
+	 *
+	 * This mapping must be kept in sync with the mapping
+	 * used by firmware.
+	 */
+	tasklet_schedule(&ar_pci->pipe_info[ce_id].intr);
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t ath10k_pci_msi_fw_handler(int irq, void *arg)
+{
+	struct ath10k *ar = arg;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+
+	tasklet_schedule(&ar_pci->msi_fw_err);
+	return IRQ_HANDLED;
+}
+
+/*
+ * Top-level interrupt handler for all PCI interrupts from a Target.
+ * When a block of MSI interrupts is allocated, this top-level handler
+ * is not used; instead, we directly call the correct sub-handler.
+ */
+static irqreturn_t ath10k_pci_interrupt_handler(int irq, void *arg)
+{
+	struct ath10k *ar = arg;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+
+	if (ar_pci->num_msi_intrs == 0) {
+		/*
+		 * IMPORTANT: INTR_CLR regiser has to be set after
+		 * INTR_ENABLE is set to 0, otherwise interrupt can not be
+		 * really cleared.
+		 */
+		iowrite32(0, ar_pci->mem +
+			  (SOC_CORE_BASE_ADDRESS |
+			   PCIE_INTR_ENABLE_ADDRESS));
+		iowrite32(PCIE_INTR_FIRMWARE_MASK |
+			  PCIE_INTR_CE_MASK_ALL,
+			  ar_pci->mem + (SOC_CORE_BASE_ADDRESS |
+					 PCIE_INTR_CLR_ADDRESS));
+		/*
+		 * IMPORTANT: this extra read transaction is required to
+		 * flush the posted write buffer.
+		 */
+		(void) ioread32(ar_pci->mem +
+				(SOC_CORE_BASE_ADDRESS |
+				 PCIE_INTR_ENABLE_ADDRESS));
+	}
+
+	tasklet_schedule(&ar_pci->intr_tq);
+
+	return IRQ_HANDLED;
+}
+
+static void ath10k_pci_tasklet(unsigned long data)
+{
+	struct ath10k *ar = (struct ath10k *)data;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+
+	ath10k_pci_fw_interrupt_handler(ar); /* FIXME: Handle FW error */
+	ath10k_ce_per_engine_service_any(ar);
+
+	if (ar_pci->num_msi_intrs == 0) {
+		/* Enable Legacy PCI line interrupts */
+		iowrite32(PCIE_INTR_FIRMWARE_MASK |
+			  PCIE_INTR_CE_MASK_ALL,
+			  ar_pci->mem + (SOC_CORE_BASE_ADDRESS |
+					 PCIE_INTR_ENABLE_ADDRESS));
+		/*
+		 * IMPORTANT: this extra read transaction is required to
+		 * flush the posted write buffer
+		 */
+		(void) ioread32(ar_pci->mem +
+				(SOC_CORE_BASE_ADDRESS |
+				 PCIE_INTR_ENABLE_ADDRESS));
+	}
+}
+
+static int ath10k_pci_start_intr_msix(struct ath10k *ar, int num)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int ret;
+	int i;
+
+	ret = pci_enable_msi_block(ar_pci->pdev, num);
+	if (ret)
+		return ret;
+
+	ret = request_irq(ar_pci->pdev->irq + MSI_ASSIGN_FW,
+			  ath10k_pci_msi_fw_handler,
+			  IRQF_SHARED, "ath10k_pci", ar);
+	if (ret)
+		return ret;
+
+	for (i = MSI_ASSIGN_CE_INITIAL; i <= MSI_ASSIGN_CE_MAX; i++) {
+		ret = request_irq(ar_pci->pdev->irq + i,
+				  ath10k_pci_per_engine_handler,
+				  IRQF_SHARED, "ath10k_pci", ar);
+		if (ret) {
+			ath10k_warn("request_irq(%d) failed %d\n",
+				    ar_pci->pdev->irq + i, ret);
+
+			for (; i >= MSI_ASSIGN_CE_INITIAL; i--)
+				free_irq(ar_pci->pdev->irq, ar);
+
+			pci_disable_msi(ar_pci->pdev);
+			return ret;
+		}
+	}
+
+	ath10k_info("MSI-X interrupt handling (%d intrs)\n", num);
+	return 0;
+}
+
+static int ath10k_pci_start_intr_msi(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int ret;
+
+	ret = pci_enable_msi(ar_pci->pdev);
+	if (ret < 0)
+		return ret;
+
+	ret = request_irq(ar_pci->pdev->irq,
+			  ath10k_pci_interrupt_handler,
+			  IRQF_SHARED, "ath10k_pci", ar);
+	if (ret < 0) {
+		pci_disable_msi(ar_pci->pdev);
+		return ret;
+	}
+
+	ath10k_info("MSI interrupt handling\n");
+	return 0;
+}
+
+static int ath10k_pci_start_intr_legacy(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int ret;
+
+	ret = request_irq(ar_pci->pdev->irq,
+			  ath10k_pci_interrupt_handler,
+			  IRQF_SHARED, "ath10k_pci", ar);
+	if (ret < 0)
+		return ret;
+
+	/*
+	 * Make sure to wake the Target before enabling Legacy
+	 * Interrupt.
+	 */
+	iowrite32(PCIE_SOC_WAKE_V_MASK,
+		  ar_pci->mem + PCIE_LOCAL_BASE_ADDRESS +
+		  PCIE_SOC_WAKE_ADDRESS);
+
+	ath10k_pci_wait(ar);
+
+	/*
+	 * A potential race occurs here: The CORE_BASE write
+	 * depends on target correctly decoding AXI address but
+	 * host won't know when target writes BAR to CORE_CTRL.
+	 * This write might get lost if target has NOT written BAR.
+	 * For now, fix the race by repeating the write in below
+	 * synchronization checking.
+	 */
+	iowrite32(PCIE_INTR_FIRMWARE_MASK |
+		  PCIE_INTR_CE_MASK_ALL,
+		  ar_pci->mem + (SOC_CORE_BASE_ADDRESS |
+				 PCIE_INTR_ENABLE_ADDRESS));
+	iowrite32(PCIE_SOC_WAKE_RESET,
+		  ar_pci->mem + PCIE_LOCAL_BASE_ADDRESS +
+		  PCIE_SOC_WAKE_ADDRESS);
+
+	ath10k_info("legacy interrupt handling\n");
+	return 0;
+}
+
+static int ath10k_pci_start_intr(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int num = MSI_NUM_REQUEST;
+	int ret;
+	int i;
+
+	tasklet_init(&ar_pci->intr_tq, ath10k_pci_tasklet, (unsigned long) ar);
+	tasklet_init(&ar_pci->msi_fw_err, ath10k_msi_err_tasklet,
+		     (unsigned long) ar);
+
+	for (i = 0; i < CE_COUNT; i++) {
+		ar_pci->pipe_info[i].ar_pci = ar_pci;
+		tasklet_init(&ar_pci->pipe_info[i].intr,
+			     ath10k_pci_ce_tasklet,
+			     (unsigned long)&ar_pci->pipe_info[i]);
+	}
+
+	if (!test_bit(ATH10K_PCI_FEATURE_MSI_X, ar_pci->features))
+		num = 1;
+
+	if (num > 1) {
+		ret = ath10k_pci_start_intr_msix(ar, num);
+		if (ret == 0)
+			goto exit;
+
+		ath10k_warn("MSI-X didn't succeed (%d), trying MSI\n", ret);
+		num = 1;
+	}
+
+	if (num == 1) {
+		ret = ath10k_pci_start_intr_msi(ar);
+		if (ret == 0)
+			goto exit;
+
+		ath10k_warn("MSI didn't succeed (%d), trying legacy INTR\n",
+			    ret);
+		num = 0;
+	}
+
+	ret = ath10k_pci_start_intr_legacy(ar);
+
+exit:
+	ar_pci->num_msi_intrs = num;
+	ar_pci->ce_count = CE_COUNT;
+	return ret;
+}
+
+static void ath10k_pci_stop_intr(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int i;
+
+	/* There's at least one interrupt irregardless whether its legacy INTR
+	 * or MSI or MSI-X */
+	for (i = 0; i < max(1, ar_pci->num_msi_intrs); i++)
+		free_irq(ar_pci->pdev->irq + i, ar);
+
+	if (ar_pci->num_msi_intrs > 0)
+		pci_disable_msi(ar_pci->pdev);
+}
+
+static int ath10k_pci_reset_target(struct ath10k *ar)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int wait_limit = 300; /* 3 sec */
+
+	/* Wait for Target to finish initialization before we proceed. */
+	iowrite32(PCIE_SOC_WAKE_V_MASK,
+		  ar_pci->mem + PCIE_LOCAL_BASE_ADDRESS +
+		  PCIE_SOC_WAKE_ADDRESS);
+
+	ath10k_pci_wait(ar);
+
+	while (wait_limit-- &&
+	       !(ioread32(ar_pci->mem + FW_INDICATOR_ADDRESS) &
+		 FW_IND_INITIALIZED)) {
+		if (ar_pci->num_msi_intrs == 0)
+			/* Fix potential race by repeating CORE_BASE writes */
+			iowrite32(PCIE_INTR_FIRMWARE_MASK |
+				  PCIE_INTR_CE_MASK_ALL,
+				  ar_pci->mem + (SOC_CORE_BASE_ADDRESS |
+						 PCIE_INTR_ENABLE_ADDRESS));
+		mdelay(10);
+	}
+
+	if (wait_limit < 0) {
+		ath10k_err("Target stalled\n");
+		iowrite32(PCIE_SOC_WAKE_RESET,
+			  ar_pci->mem + PCIE_LOCAL_BASE_ADDRESS +
+			  PCIE_SOC_WAKE_ADDRESS);
+		return -EIO;
+	}
+
+	iowrite32(PCIE_SOC_WAKE_RESET,
+		  ar_pci->mem + PCIE_LOCAL_BASE_ADDRESS +
+		  PCIE_SOC_WAKE_ADDRESS);
+
+	return 0;
+}
+
+static void ath10k_pci_device_reset(struct ath10k_pci *ar_pci)
+{
+	struct ath10k *ar = ar_pci->ar;
+	void __iomem *mem = ar_pci->mem;
+	int i;
+	u32 val;
+
+	if (!SOC_GLOBAL_RESET_ADDRESS)
+		return;
+
+	if (!mem)
+		return;
+
+	ath10k_pci_reg_write32(mem, PCIE_SOC_WAKE_ADDRESS,
+			       PCIE_SOC_WAKE_V_MASK);
+	for (i = 0; i < ATH_PCI_RESET_WAIT_MAX; i++) {
+		if (ath10k_pci_target_is_awake(ar))
+			break;
+		msleep(1);
+	}
+
+	/* Put Target, including PCIe, into RESET. */
+	val = ath10k_pci_reg_read32(mem, SOC_GLOBAL_RESET_ADDRESS);
+	val |= 1;
+	ath10k_pci_reg_write32(mem, SOC_GLOBAL_RESET_ADDRESS, val);
+
+	for (i = 0; i < ATH_PCI_RESET_WAIT_MAX; i++) {
+		if (ath10k_pci_reg_read32(mem, RTC_STATE_ADDRESS) &
+					  RTC_STATE_COLD_RESET_MASK)
+			break;
+		msleep(1);
+	}
+
+	/* Pull Target, including PCIe, out of RESET. */
+	val &= ~1;
+	ath10k_pci_reg_write32(mem, SOC_GLOBAL_RESET_ADDRESS, val);
+
+	for (i = 0; i < ATH_PCI_RESET_WAIT_MAX; i++) {
+		if (!(ath10k_pci_reg_read32(mem, RTC_STATE_ADDRESS) &
+					    RTC_STATE_COLD_RESET_MASK))
+			break;
+		msleep(1);
+	}
+
+	ath10k_pci_reg_write32(mem, PCIE_SOC_WAKE_ADDRESS, PCIE_SOC_WAKE_RESET);
+}
+
+static void ath10k_pci_dump_features(struct ath10k_pci *ar_pci)
+{
+	int i;
+
+	for (i = 0; i < ATH10K_PCI_FEATURE_COUNT; i++) {
+		if (!test_bit(i, ar_pci->features))
+			continue;
+
+		switch (i) {
+		case ATH10K_PCI_FEATURE_MSI_X:
+			ath10k_dbg(ATH10K_DBG_PCI, "device supports MSI-X\n");
+			break;
+		case ATH10K_PCI_FEATURE_HW_1_0_WARKAROUND:
+			ath10k_dbg(ATH10K_DBG_PCI, "QCA988X_1.0 workaround enabled\n");
+			break;
+		}
+	}
+}
+
+static int ath10k_pci_probe(struct pci_dev *pdev,
+			    const struct pci_device_id *pci_dev)
+{
+	void __iomem *mem;
+	int ret = 0;
+	struct ath10k *ar;
+	struct ath10k_pci *ar_pci;
+	u32 lcr_val;
+
+	ath10k_dbg(ATH10K_DBG_PCI, "%s\n", __func__);
+
+	ar_pci = kzalloc(sizeof(*ar_pci), GFP_KERNEL);
+	if (ar_pci == NULL)
+		return -ENOMEM;
+
+	ar_pci->pdev = pdev;
+	ar_pci->dev = &pdev->dev;
+
+	switch (pci_dev->device) {
+	case QCA988X_1_0_DEVICE_ID:
+		set_bit(ATH10K_PCI_FEATURE_HW_1_0_WARKAROUND, ar_pci->features);
+		break;
+	case QCA988X_2_0_DEVICE_ID:
+		set_bit(ATH10K_PCI_FEATURE_MSI_X, ar_pci->features);
+		break;
+	default:
+		ret = -ENODEV;
+		ath10k_err("Unkown device ID: %d\n", pci_dev->device);
+		goto err_ar_pci;
+	}
+
+	ath10k_pci_dump_features(ar_pci);
+
+	ar = ath10k_core_create(ar_pci, ar_pci->dev, ATH10K_BUS_PCI,
+				&ath10k_pci_hif_ops);
+	if (!ar) {
+		ath10k_err("ath10k_core_create failed!\n");
+		ret = -EINVAL;
+		goto err_ar_pci;
+	}
+
+	/* Enable QCA988X_1.0 HW workarounds */
+	if (test_bit(ATH10K_PCI_FEATURE_HW_1_0_WARKAROUND, ar_pci->features))
+		spin_lock_init(&ar_pci->hw_v1_workaround_lock);
+
+	ar_pci->ar = ar;
+	ar_pci->fw_indicator_address = FW_INDICATOR_ADDRESS;
+	atomic_set(&ar_pci->keep_awake_count, 0);
+
+	pci_set_drvdata(pdev, ar);
+
+	/*
+	 * Without any knowledge of the Host, the Target may have been reset or
+	 * power cycled and its Config Space may no longer reflect the PCI
+	 * address space that was assigned earlier by the PCI infrastructure.
+	 * Refresh it now.
+	 */
+	ret = pci_assign_resource(pdev, BAR_NUM);
+	if (ret) {
+		ath10k_err("cannot assign PCI space: %d\n", ret);
+		goto err_ar;
+	}
+
+	ret = pci_enable_device(pdev);
+	if (ret) {
+		ath10k_err("cannot enable PCI device: %d\n", ret);
+		goto err_ar;
+	}
+
+	/* Request MMIO resources */
+	ret = pci_request_region(pdev, BAR_NUM, "ath");
+	if (ret) {
+		ath10k_err("PCI MMIO reservation error: %d\n", ret);
+		goto err_device;
+	}
+
+	/*
+	 * Target structures have a limit of 32 bit DMA pointers.
+	 * DMA pointers can be wider than 32 bits by default on some systems.
+	 */
+	ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+	if (ret) {
+		ath10k_err("32-bit DMA not available: %d\n", ret);
+		goto err_region;
+	}
+
+	ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
+	if (ret) {
+		ath10k_err("cannot enable 32-bit consistent DMA\n");
+		goto err_region;
+	}
+
+	/* Set bus master bit in PCI_COMMAND to enable DMA */
+	pci_set_master(pdev);
+
+	/*
+	 * Temporary FIX: disable ASPM
+	 * Will be removed after the OTP is programmed
+	 */
+	pci_read_config_dword(pdev, 0x80, &lcr_val);
+	pci_write_config_dword(pdev, 0x80, (lcr_val & 0xffffff00));
+
+	/* Arrange for access to Target SoC registers. */
+	mem = pci_iomap(pdev, BAR_NUM, 0);
+	if (!mem) {
+		ath10k_err("PCI iomap error\n");
+		ret = -EIO;
+		goto err_master;
+	}
+
+	ar_pci->mem = mem;
+
+	spin_lock_init(&ar_pci->ce_lock);
+
+	ar_pci->cacheline_sz = dma_get_cache_alignment();
+
+	ret = ath10k_pci_start_intr(ar);
+	if (ret) {
+		ath10k_err("could not start interrupt handling (%d)\n", ret);
+		goto err_iomap;
+	}
+
+	/*
+	 * Bring the target up cleanly.
+	 *
+	 * The target may be in an undefined state with an AUX-powered Target
+	 * and a Host in WoW mode. If the Host crashes, loses power, or is
+	 * restarted (without unloading the driver) then the Target is left
+	 * (aux) powered and running. On a subsequent driver load, the Target
+	 * is in an unexpected state. We try to catch that here in order to
+	 * reset the Target and retry the probe.
+	 */
+	ath10k_pci_device_reset(ar_pci);
+
+	ret = ath10k_pci_reset_target(ar);
+	if (ret)
+		goto err_intr;
+
+	if (ath10k_target_ps) {
+		ath10k_dbg(ATH10K_DBG_PCI, "on-chip power save enabled\n");
+	} else {
+		/* Force AWAKE forever */
+		ath10k_dbg(ATH10K_DBG_PCI, "on-chip power save disabled\n");
+		ath10k_do_pci_wake(ar);
+	}
+
+	ret = ath10k_pci_ce_init(ar);
+	if (ret)
+		goto err_intr;
+
+	ret = ath10k_pci_init_config(ar);
+	if (ret)
+		goto err_ce;
+
+	ret = ath10k_pci_wake_target_cpu(ar);
+	if (ret) {
+		ath10k_err("could not wake up target CPU (%d)\n", ret);
+		goto err_ce;
+	}
+
+	ret = ath10k_core_register(ar);
+	if (ret) {
+		ath10k_err("could not register driver core (%d)\n", ret);
+		goto err_ce;
+	}
+
+	return 0;
+
+err_ce:
+	ath10k_pci_ce_deinit(ar);
+err_intr:
+	ath10k_pci_stop_intr(ar);
+err_iomap:
+	pci_iounmap(pdev, mem);
+err_master:
+	pci_clear_master(pdev);
+err_region:
+	pci_release_region(pdev, BAR_NUM);
+err_device:
+	pci_disable_device(pdev);
+err_ar:
+	pci_set_drvdata(pdev, NULL);
+	ath10k_core_destroy(ar);
+err_ar_pci:
+	/* call HIF PCI free here */
+	kfree(ar_pci);
+
+	return ret;
+}
+
+static void ath10k_pci_remove(struct pci_dev *pdev)
+{
+	struct ath10k *ar = pci_get_drvdata(pdev);
+	struct ath10k_pci *ar_pci;
+
+	ath10k_dbg(ATH10K_DBG_PCI, "%s\n", __func__);
+
+	if (!ar)
+		return;
+
+	ar_pci = ath10k_pci_priv(ar);
+
+	if (!ar_pci)
+		return;
+
+	tasklet_kill(&ar_pci->msi_fw_err);
+
+	ath10k_core_unregister(ar);
+	ath10k_pci_stop_intr(ar);
+
+	pci_set_drvdata(pdev, NULL);
+	pci_iounmap(pdev, ar_pci->mem);
+	pci_release_region(pdev, BAR_NUM);
+	pci_clear_master(pdev);
+	pci_disable_device(pdev);
+
+	ath10k_core_destroy(ar);
+	kfree(ar_pci);
+}
+
+#if defined(CONFIG_PM_SLEEP)
+
+#define ATH10K_PCI_PM_CONTROL 0x44
+
+static int ath10k_pci_suspend(struct device *device)
+{
+	struct pci_dev *pdev = to_pci_dev(device);
+	struct ath10k *ar = pci_get_drvdata(pdev);
+	struct ath10k_pci *ar_pci;
+	u32 val;
+	int ret, retval;
+
+	ath10k_dbg(ATH10K_DBG_PCI, "%s\n", __func__);
+
+	if (!ar)
+		return -ENODEV;
+
+	ar_pci = ath10k_pci_priv(ar);
+	if (!ar_pci)
+		return -ENODEV;
+
+	if (ath10k_core_target_suspend(ar))
+		return -EBUSY;
+
+	ret = wait_event_interruptible_timeout(ar->event_queue,
+						ar->is_target_paused == true,
+						1 * HZ);
+	if (ret < 0) {
+		ath10k_warn("suspend interrupted (%d)\n", ret);
+		retval = ret;
+		goto resume;
+	} else if (ret == 0) {
+		ath10k_warn("suspend timed out - target pause event never came\n");
+		retval = EIO;
+		goto resume;
+	}
+
+	/*
+	 * reset is_target_paused and host can check that in next time,
+	 * or it will always be TRUE and host just skip the waiting
+	 * condition, it causes target assert due to host already
+	 * suspend
+	 */
+	ar->is_target_paused = false;
+
+	pci_read_config_dword(pdev, ATH10K_PCI_PM_CONTROL, &val);
+
+	if ((val & 0x000000ff) != 0x3) {
+		pci_save_state(pdev);
+		pci_disable_device(pdev);
+		pci_write_config_dword(pdev, ATH10K_PCI_PM_CONTROL,
+				       (val & 0xffffff00) | 0x03);
+	}
+
+	return 0;
+resume:
+	ret = ath10k_core_target_resume(ar);
+	if (ret)
+		ath10k_warn("could not resume (%d)\n", ret);
+
+	return retval;
+}
+
+static int ath10k_pci_resume(struct device *device)
+{
+	struct pci_dev *pdev = to_pci_dev(device);
+	struct ath10k *ar = pci_get_drvdata(pdev);
+	struct ath10k_pci *ar_pci;
+	int ret;
+	u32 val;
+
+	ath10k_dbg(ATH10K_DBG_PCI, "%s\n", __func__);
+
+	if (!ar)
+		return -ENODEV;
+	ar_pci = ath10k_pci_priv(ar);
+
+	if (!ar_pci)
+		return -ENODEV;
+
+	ret = pci_enable_device(pdev);
+	if (ret) {
+		ath10k_warn("cannot enable PCI device: %d\n", ret);
+		return ret;
+	}
+
+	pci_read_config_dword(pdev, ATH10K_PCI_PM_CONTROL, &val);
+
+	if ((val & 0x000000ff) != 0) {
+		pci_restore_state(pdev);
+		pci_write_config_dword(pdev, ATH10K_PCI_PM_CONTROL,
+				       val & 0xffffff00);
+		/*
+		 * Suspend/Resume resets the PCI configuration space,
+		 * so we have to re-disable the RETRY_TIMEOUT register (0x41)
+		 * to keep PCI Tx retries from interfering with C3 CPU state
+		 */
+		pci_read_config_dword(pdev, 0x40, &val);
+
+		if ((val & 0x0000ff00) != 0)
+			pci_write_config_dword(pdev, 0x40, val & 0xffff00ff);
+	}
+
+	ret = ath10k_core_target_resume(ar);
+	if (ret)
+		ath10k_warn("target resume failed: %d\n", ret);
+
+	return ret;
+}
+
+static SIMPLE_DEV_PM_OPS(ath10k_dev_pm_ops,
+			 ath10k_pci_suspend,
+			 ath10k_pci_resume);
+
+#define ATH10K_PCI_PM_OPS (&ath10k_dev_pm_ops)
+
+#else
+
+#define ATH10K_PCI_PM_OPS NULL
+
+#endif /* CONFIG_PM_SLEEP */
+
+MODULE_DEVICE_TABLE(pci, ath10k_pci_id_table);
+
+static struct pci_driver ath10k_pci_driver = {
+	.name = "ath10k_pci",
+	.id_table = ath10k_pci_id_table,
+	.probe = ath10k_pci_probe,
+	.remove = ath10k_pci_remove,
+	.driver.pm = ATH10K_PCI_PM_OPS,
+};
+
+static int __init ath10k_pci_init(void)
+{
+	int ret;
+
+	ret = pci_register_driver(&ath10k_pci_driver);
+	if (ret)
+		ath10k_err("pci_register_driver failed [%d]\n", ret);
+
+	return ret;
+}
+module_init(ath10k_pci_init);
+
+static void __exit ath10k_pci_exit(void)
+{
+	pci_unregister_driver(&ath10k_pci_driver);
+}
+
+module_exit(ath10k_pci_exit);
+
+MODULE_AUTHOR("Qualcomm Atheros");
+MODULE_DESCRIPTION("Driver support for Atheros QCA988X PCIe devices");
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_FIRMWARE(QCA988X_HW_1_0_FW_DIR "/" QCA988X_HW_1_0_FW_FILE);
+MODULE_FIRMWARE(QCA988X_HW_1_0_FW_DIR "/" QCA988X_HW_1_0_OTP_FILE);
+MODULE_FIRMWARE(QCA988X_HW_1_0_FW_DIR "/" QCA988X_HW_1_0_BOARD_DATA_FILE);
+MODULE_FIRMWARE(QCA988X_HW_2_0_FW_DIR "/" QCA988X_HW_2_0_FW_FILE);
+MODULE_FIRMWARE(QCA988X_HW_2_0_FW_DIR "/" QCA988X_HW_2_0_OTP_FILE);
+MODULE_FIRMWARE(QCA988X_HW_2_0_FW_DIR "/" QCA988X_HW_2_0_BOARD_DATA_FILE);

drivers/net/wireless/ath/ath10k/pci.h

@@ -0,0 +1,355 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _PCI_H_
+#define _PCI_H_
+
+#include <linux/interrupt.h>
+
+#include "hw.h"
+#include "ce.h"
+
+/* FW dump area */
+#define REG_DUMP_COUNT_QCA988X 60
+
+/*
+ * maximum number of bytes that can be handled atomically by DiagRead/DiagWrite
+ */
+#define DIAG_TRANSFER_LIMIT 2048
+
+/*
+ * maximum number of bytes that can be
+ * handled atomically by DiagRead/DiagWrite
+ */
+#define DIAG_TRANSFER_LIMIT 2048
+
+struct bmi_xfer {
+	struct completion done;
+	bool wait_for_resp;
+	u32 resp_len;
+};
+
+struct ath10k_pci_compl {
+	struct list_head list;
+	int send_or_recv;
+	struct ce_state *ce_state;
+	struct hif_ce_pipe_info *pipe_info;
+	void *transfer_context;
+	unsigned int nbytes;
+	unsigned int transfer_id;
+	unsigned int flags;
+};
+
+/* compl_state.send_or_recv */
+#define HIF_CE_COMPLETE_FREE 0
+#define HIF_CE_COMPLETE_SEND 1
+#define HIF_CE_COMPLETE_RECV 2
+
+/*
+ * PCI-specific Target state
+ *
+ * NOTE: Structure is shared between Host software and Target firmware!
+ *
+ * Much of this may be of interest to the Host so
+ * HOST_INTEREST->hi_interconnect_state points here
+ * (and all members are 32-bit quantities in order to
+ * facilitate Host access). In particular, Host software is
+ * required to initialize pipe_cfg_addr and svc_to_pipe_map.
+ */
+struct pcie_state {
+	/* Pipe configuration Target address */
+	/* NB: ce_pipe_config[CE_COUNT] */
+	u32 pipe_cfg_addr;
+
+	/* Service to pipe map Target address */
+	/* NB: service_to_pipe[PIPE_TO_CE_MAP_CN] */
+	u32 svc_to_pipe_map;
+
+	/* number of MSI interrupts requested */
+	u32 msi_requested;
+
+	/* number of MSI interrupts granted */
+	u32 msi_granted;
+
+	/* Message Signalled Interrupt address */
+	u32 msi_addr;
+
+	/* Base data */
+	u32 msi_data;
+
+	/*
+	 * Data for firmware interrupt;
+	 * MSI data for other interrupts are
+	 * in various SoC registers
+	 */
+	u32 msi_fw_intr_data;
+
+	/* PCIE_PWR_METHOD_* */
+	u32 power_mgmt_method;
+
+	/* PCIE_CONFIG_FLAG_* */
+	u32 config_flags;
+};
+
+/* PCIE_CONFIG_FLAG definitions */
+#define PCIE_CONFIG_FLAG_ENABLE_L1  0x0000001
+
+/* Host software's Copy Engine configuration. */
+#define CE_ATTR_FLAGS 0
+
+/*
+ * Configuration information for a Copy Engine pipe.
+ * Passed from Host to Target during startup (one per CE).
+ *
+ * NOTE: Structure is shared between Host software and Target firmware!
+ */
+struct ce_pipe_config {
+	u32 pipenum;
+	u32 pipedir;
+	u32 nentries;
+	u32 nbytes_max;
+	u32 flags;
+	u32 reserved;
+};
+
+/*
+ * Directions for interconnect pipe configuration.
+ * These definitions may be used during configuration and are shared
+ * between Host and Target.
+ *
+ * Pipe Directions are relative to the Host, so PIPEDIR_IN means
+ * "coming IN over air through Target to Host" as with a WiFi Rx operation.
+ * Conversely, PIPEDIR_OUT means "going OUT from Host through Target over air"
+ * as with a WiFi Tx operation. This is somewhat awkward for the "middle-man"
+ * Target since things that are "PIPEDIR_OUT" are coming IN to the Target
+ * over the interconnect.
+ */
+#define PIPEDIR_NONE    0
+#define PIPEDIR_IN      1  /* Target-->Host, WiFi Rx direction */
+#define PIPEDIR_OUT     2  /* Host->Target, WiFi Tx direction */
+#define PIPEDIR_INOUT   3  /* bidirectional */
+
+/* Establish a mapping between a service/direction and a pipe. */
+struct service_to_pipe {
+	u32 service_id;
+	u32 pipedir;
+	u32 pipenum;
+};
+
+enum ath10k_pci_features {
+	ATH10K_PCI_FEATURE_MSI_X		= 0,
+	ATH10K_PCI_FEATURE_HW_1_0_WARKAROUND	= 1,
+
+	/* keep last */
+	ATH10K_PCI_FEATURE_COUNT
+};
+
+/* Per-pipe state. */
+struct hif_ce_pipe_info {
+	/* Handle of underlying Copy Engine */
+	struct ce_state *ce_hdl;
+
+	/* Our pipe number; facilitiates use of pipe_info ptrs. */
+	u8 pipe_num;
+
+	/* Convenience back pointer to hif_ce_state. */
+	struct ath10k *hif_ce_state;
+
+	size_t buf_sz;
+
+	/* protects compl_free and num_send_allowed */
+	spinlock_t pipe_lock;
+
+	/* List of free CE completion slots */
+	struct list_head compl_free;
+
+	/* Limit the number of outstanding send requests. */
+	int num_sends_allowed;
+
+	struct ath10k_pci *ar_pci;
+	struct tasklet_struct intr;
+};
+
+struct ath10k_pci {
+	struct pci_dev *pdev;
+	struct device *dev;
+	struct ath10k *ar;
+	void __iomem *mem;
+	int cacheline_sz;
+
+	DECLARE_BITMAP(features, ATH10K_PCI_FEATURE_COUNT);
+
+	/*
+	 * Number of MSI interrupts granted, 0 --> using legacy PCI line
+	 * interrupts.
+	 */
+	int num_msi_intrs;
+
+	struct tasklet_struct intr_tq;
+	struct tasklet_struct msi_fw_err;
+
+	/* Number of Copy Engines supported */
+	unsigned int ce_count;
+
+	int started;
+
+	atomic_t keep_awake_count;
+	bool verified_awake;
+
+	/* List of CE completions to be processed */
+	struct list_head compl_process;
+
+	/* protects compl_processing and compl_process */
+	spinlock_t compl_lock;
+
+	bool compl_processing;
+
+	struct hif_ce_pipe_info pipe_info[CE_COUNT_MAX];
+
+	struct ath10k_hif_cb msg_callbacks_current;
+
+	/* Target address used to signal a pending firmware event */
+	u32 fw_indicator_address;
+
+	/* Copy Engine used for Diagnostic Accesses */
+	struct ce_state *ce_diag;
+
+	/* FIXME: document what this really protects */
+	spinlock_t ce_lock;
+
+	/* Map CE id to ce_state */
+	struct ce_state *ce_id_to_state[CE_COUNT_MAX];
+
+	/* makes sure that dummy reads are atomic */
+	spinlock_t hw_v1_workaround_lock;
+};
+
+static inline struct ath10k_pci *ath10k_pci_priv(struct ath10k *ar)
+{
+	return ar->hif.priv;
+}
+
+static inline u32 ath10k_pci_reg_read32(void __iomem *mem, u32 addr)
+{
+	return ioread32(mem + PCIE_LOCAL_BASE_ADDRESS + addr);
+}
+
+static inline void ath10k_pci_reg_write32(void __iomem *mem, u32 addr, u32 val)
+{
+	iowrite32(val, mem + PCIE_LOCAL_BASE_ADDRESS + addr);
+}
+
+#define ATH_PCI_RESET_WAIT_MAX 10 /* ms */
+#define PCIE_WAKE_TIMEOUT 5000	/* 5ms */
+
+#define BAR_NUM 0
+
+#define CDC_WAR_MAGIC_STR   0xceef0000
+#define CDC_WAR_DATA_CE     4
+
+/*
+ * TODO: Should be a function call specific to each Target-type.
+ * This convoluted macro converts from Target CPU Virtual Address Space to CE
+ * Address Space. As part of this process, we conservatively fetch the current
+ * PCIE_BAR. MOST of the time, this should match the upper bits of PCI space
+ * for this device; but that's not guaranteed.
+ */
+#define TARG_CPU_SPACE_TO_CE_SPACE(ar, pci_addr, addr)			\
+	(((ioread32((pci_addr)+(SOC_CORE_BASE_ADDRESS|			\
+	  CORE_CTRL_ADDRESS)) & 0x7ff) << 21) |				\
+	 0x100000 | ((addr) & 0xfffff))
+
+/* Wait up to this many Ms for a Diagnostic Access CE operation to complete */
+#define DIAG_ACCESS_CE_TIMEOUT_MS 10
+
+/*
+ * This API allows the Host to access Target registers directly
+ * and relatively efficiently over PCIe.
+ * This allows the Host to avoid extra overhead associated with
+ * sending a message to firmware and waiting for a response message
+ * from firmware, as is done on other interconnects.
+ *
+ * Yet there is some complexity with direct accesses because the
+ * Target's power state is not known a priori. The Host must issue
+ * special PCIe reads/writes in order to explicitly wake the Target
+ * and to verify that it is awake and will remain awake.
+ *
+ * Usage:
+ *
+ *   Use ath10k_pci_read32 and ath10k_pci_write32 to access Target space.
+ *   These calls must be bracketed by ath10k_pci_wake and
+ *   ath10k_pci_sleep.  A single BEGIN/END pair is adequate for
+ *   multiple READ/WRITE operations.
+ *
+ *   Use ath10k_pci_wake to put the Target in a state in
+ *   which it is legal for the Host to directly access it. This
+ *   may involve waking the Target from a low power state, which
+ *   may take up to 2Ms!
+ *
+ *   Use ath10k_pci_sleep to tell the Target that as far as
+ *   this code path is concerned, it no longer needs to remain
+ *   directly accessible.  BEGIN/END is under a reference counter;
+ *   multiple code paths may issue BEGIN/END on a single targid.
+ */
+static inline void ath10k_pci_write32(struct ath10k *ar, u32 offset,
+				      u32 value)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	void __iomem *addr = ar_pci->mem;
+
+	if (test_bit(ATH10K_PCI_FEATURE_HW_1_0_WARKAROUND, ar_pci->features)) {
+		unsigned long irq_flags;
+
+		spin_lock_irqsave(&ar_pci->hw_v1_workaround_lock, irq_flags);
+
+		ioread32(addr+offset+4); /* 3rd read prior to write */
+		ioread32(addr+offset+4); /* 2nd read prior to write */
+		ioread32(addr+offset+4); /* 1st read prior to write */
+		iowrite32(value, addr+offset);
+
+		spin_unlock_irqrestore(&ar_pci->hw_v1_workaround_lock,
+				       irq_flags);
+	} else {
+		iowrite32(value, addr+offset);
+	}
+}
+
+static inline u32 ath10k_pci_read32(struct ath10k *ar, u32 offset)
+{
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+
+	return ioread32(ar_pci->mem + offset);
+}
+
+extern unsigned int ath10k_target_ps;
+
+void ath10k_do_pci_wake(struct ath10k *ar);
+void ath10k_do_pci_sleep(struct ath10k *ar);
+
+static inline void ath10k_pci_wake(struct ath10k *ar)
+{
+	if (ath10k_target_ps)
+		ath10k_do_pci_wake(ar);
+}
+
+static inline void ath10k_pci_sleep(struct ath10k *ar)
+{
+	if (ath10k_target_ps)
+		ath10k_do_pci_sleep(ar);
+}
+
+#endif /* _PCI_H_ */

drivers/net/wireless/ath/ath10k/rx_desc.h

@@ -0,0 +1,990 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _RX_DESC_H_
+#define _RX_DESC_H_
+
+enum rx_attention_flags {
+	RX_ATTENTION_FLAGS_FIRST_MPDU          = 1 << 0,
+	RX_ATTENTION_FLAGS_LAST_MPDU           = 1 << 1,
+	RX_ATTENTION_FLAGS_MCAST_BCAST         = 1 << 2,
+	RX_ATTENTION_FLAGS_PEER_IDX_INVALID    = 1 << 3,
+	RX_ATTENTION_FLAGS_PEER_IDX_TIMEOUT    = 1 << 4,
+	RX_ATTENTION_FLAGS_POWER_MGMT          = 1 << 5,
+	RX_ATTENTION_FLAGS_NON_QOS             = 1 << 6,
+	RX_ATTENTION_FLAGS_NULL_DATA           = 1 << 7,
+	RX_ATTENTION_FLAGS_MGMT_TYPE           = 1 << 8,
+	RX_ATTENTION_FLAGS_CTRL_TYPE           = 1 << 9,
+	RX_ATTENTION_FLAGS_MORE_DATA           = 1 << 10,
+	RX_ATTENTION_FLAGS_EOSP                = 1 << 11,
+	RX_ATTENTION_FLAGS_U_APSD_TRIGGER      = 1 << 12,
+	RX_ATTENTION_FLAGS_FRAGMENT            = 1 << 13,
+	RX_ATTENTION_FLAGS_ORDER               = 1 << 14,
+	RX_ATTENTION_FLAGS_CLASSIFICATION      = 1 << 15,
+	RX_ATTENTION_FLAGS_OVERFLOW_ERR        = 1 << 16,
+	RX_ATTENTION_FLAGS_MSDU_LENGTH_ERR     = 1 << 17,
+	RX_ATTENTION_FLAGS_TCP_UDP_CHKSUM_FAIL = 1 << 18,
+	RX_ATTENTION_FLAGS_IP_CHKSUM_FAIL      = 1 << 19,
+	RX_ATTENTION_FLAGS_SA_IDX_INVALID      = 1 << 20,
+	RX_ATTENTION_FLAGS_DA_IDX_INVALID      = 1 << 21,
+	RX_ATTENTION_FLAGS_SA_IDX_TIMEOUT      = 1 << 22,
+	RX_ATTENTION_FLAGS_DA_IDX_TIMEOUT      = 1 << 23,
+	RX_ATTENTION_FLAGS_ENCRYPT_REQUIRED    = 1 << 24,
+	RX_ATTENTION_FLAGS_DIRECTED            = 1 << 25,
+	RX_ATTENTION_FLAGS_BUFFER_FRAGMENT     = 1 << 26,
+	RX_ATTENTION_FLAGS_MPDU_LENGTH_ERR     = 1 << 27,
+	RX_ATTENTION_FLAGS_TKIP_MIC_ERR        = 1 << 28,
+	RX_ATTENTION_FLAGS_DECRYPT_ERR         = 1 << 29,
+	RX_ATTENTION_FLAGS_FCS_ERR             = 1 << 30,
+	RX_ATTENTION_FLAGS_MSDU_DONE           = 1 << 31,
+};
+
+struct rx_attention {
+	__le32 flags; /* %RX_ATTENTION_FLAGS_ */
+} __packed;
+
+/*
+ * first_mpdu
+ *		Indicates the first MSDU of the PPDU.  If both first_mpdu
+ *		and last_mpdu are set in the MSDU then this is a not an
+ *		A-MPDU frame but a stand alone MPDU.  Interior MPDU in an
+ *		A-MPDU shall have both first_mpdu and last_mpdu bits set to
+ *		0.  The PPDU start status will only be valid when this bit
+ *		is set.
+ *
+ * last_mpdu
+ *		Indicates the last MSDU of the last MPDU of the PPDU.  The
+ *		PPDU end status will only be valid when this bit is set.
+ *
+ * mcast_bcast
+ *		Multicast / broadcast indicator.  Only set when the MAC
+ *		address 1 bit 0 is set indicating mcast/bcast and the BSSID
+ *		matches one of the 4 BSSID registers. Only set when
+ *		first_msdu is set.
+ *
+ * peer_idx_invalid
+ *		Indicates no matching entries within the the max search
+ *		count.  Only set when first_msdu is set.
+ *
+ * peer_idx_timeout
+ *		Indicates an unsuccessful search for the peer index due to
+ *		timeout.  Only set when first_msdu is set.
+ *
+ * power_mgmt
+ *		Power management bit set in the 802.11 header.  Only set
+ *		when first_msdu is set.
+ *
+ * non_qos
+ *		Set if packet is not a non-QoS data frame.  Only set when
+ *		first_msdu is set.
+ *
+ * null_data
+ *		Set if frame type indicates either null data or QoS null
+ *		data format.  Only set when first_msdu is set.
+ *
+ * mgmt_type
+ *		Set if packet is a management packet.  Only set when
+ *		first_msdu is set.
+ *
+ * ctrl_type
+ *		Set if packet is a control packet.  Only set when first_msdu
+ *		is set.
+ *
+ * more_data
+ *		Set if more bit in frame control is set.  Only set when
+ *		first_msdu is set.
+ *
+ * eosp
+ *		Set if the EOSP (end of service period) bit in the QoS
+ *		control field is set.  Only set when first_msdu is set.
+ *
+ * u_apsd_trigger
+ *		Set if packet is U-APSD trigger.  Key table will have bits
+ *		per TID to indicate U-APSD trigger.
+ *
+ * fragment
+ *		Indicates that this is an 802.11 fragment frame.  This is
+ *		set when either the more_frag bit is set in the frame
+ *		control or the fragment number is not zero.  Only set when
+ *		first_msdu is set.
+ *
+ * order
+ *		Set if the order bit in the frame control is set.  Only set
+ *		when first_msdu is set.
+ *
+ * classification
+ *		Indicates that this status has a corresponding MSDU that
+ *		requires FW processing.  The OLE will have classification
+ *		ring mask registers which will indicate the ring(s) for
+ *		packets and descriptors which need FW attention.
+ *
+ * overflow_err
+ *		PCU Receive FIFO does not have enough space to store the
+ *		full receive packet.  Enough space is reserved in the
+ *		receive FIFO for the status is written.  This MPDU remaining
+ *		packets in the PPDU will be filtered and no Ack response
+ *		will be transmitted.
+ *
+ * msdu_length_err
+ *		Indicates that the MSDU length from the 802.3 encapsulated
+ *		length field extends beyond the MPDU boundary.
+ *
+ * tcp_udp_chksum_fail
+ *		Indicates that the computed checksum (tcp_udp_chksum) did
+ *		not match the checksum in the TCP/UDP header.
+ *
+ * ip_chksum_fail
+ *		Indicates that the computed checksum did not match the
+ *		checksum in the IP header.
+ *
+ * sa_idx_invalid
+ *		Indicates no matching entry was found in the address search
+ *		table for the source MAC address.
+ *
+ * da_idx_invalid
+ *		Indicates no matching entry was found in the address search
+ *		table for the destination MAC address.
+ *
+ * sa_idx_timeout
+ *		Indicates an unsuccessful search for the source MAC address
+ *		due to the expiring of the search timer.
+ *
+ * da_idx_timeout
+ *		Indicates an unsuccessful search for the destination MAC
+ *		address due to the expiring of the search timer.
+ *
+ * encrypt_required
+ *		Indicates that this data type frame is not encrypted even if
+ *		the policy for this MPDU requires encryption as indicated in
+ *		the peer table key type.
+ *
+ * directed
+ *		MPDU is a directed packet which means that the RA matched
+ *		our STA addresses.  In proxySTA it means that the TA matched
+ *		an entry in our address search table with the corresponding
+ *		'no_ack' bit is the address search entry cleared.
+ *
+ * buffer_fragment
+ *		Indicates that at least one of the rx buffers has been
+ *		fragmented.  If set the FW should look at the rx_frag_info
+ *		descriptor described below.
+ *
+ * mpdu_length_err
+ *		Indicates that the MPDU was pre-maturely terminated
+ *		resulting in a truncated MPDU.  Don't trust the MPDU length
+ *		field.
+ *
+ * tkip_mic_err
+ *		Indicates that the MPDU Michael integrity check failed
+ *
+ * decrypt_err
+ *		Indicates that the MPDU decrypt integrity check failed
+ *
+ * fcs_err
+ *		Indicates that the MPDU FCS check failed
+ *
+ * msdu_done
+ *		If set indicates that the RX packet data, RX header data, RX
+ *		PPDU start descriptor, RX MPDU start/end descriptor, RX MSDU
+ *		start/end descriptors and RX Attention descriptor are all
+ *		valid.  This bit must be in the last octet of the
+ *		descriptor.
+ */
+
+struct rx_frag_info {
+	u8 ring0_more_count;
+	u8 ring1_more_count;
+	u8 ring2_more_count;
+	u8 ring3_more_count;
+} __packed;
+
+/*
+ * ring0_more_count
+ *		Indicates the number of more buffers associated with RX DMA
+ *		ring 0.  Field is filled in by the RX_DMA.
+ *
+ * ring1_more_count
+ *		Indicates the number of more buffers associated with RX DMA
+ *		ring 1. Field is filled in by the RX_DMA.
+ *
+ * ring2_more_count
+ *		Indicates the number of more buffers associated with RX DMA
+ *		ring 2. Field is filled in by the RX_DMA.
+ *
+ * ring3_more_count
+ *		Indicates the number of more buffers associated with RX DMA
+ *		ring 3. Field is filled in by the RX_DMA.
+ */
+
+enum htt_rx_mpdu_encrypt_type {
+	HTT_RX_MPDU_ENCRYPT_WEP40            = 0,
+	HTT_RX_MPDU_ENCRYPT_WEP104           = 1,
+	HTT_RX_MPDU_ENCRYPT_TKIP_WITHOUT_MIC = 2,
+	HTT_RX_MPDU_ENCRYPT_WEP128           = 3,
+	HTT_RX_MPDU_ENCRYPT_TKIP_WPA         = 4,
+	HTT_RX_MPDU_ENCRYPT_WAPI             = 5,
+	HTT_RX_MPDU_ENCRYPT_AES_CCM_WPA2     = 6,
+	HTT_RX_MPDU_ENCRYPT_NONE             = 7,
+};
+
+#define RX_MPDU_START_INFO0_PEER_IDX_MASK     0x000007ff
+#define RX_MPDU_START_INFO0_PEER_IDX_LSB      0
+#define RX_MPDU_START_INFO0_SEQ_NUM_MASK      0x0fff0000
+#define RX_MPDU_START_INFO0_SEQ_NUM_LSB       16
+#define RX_MPDU_START_INFO0_ENCRYPT_TYPE_MASK 0xf0000000
+#define RX_MPDU_START_INFO0_ENCRYPT_TYPE_LSB  28
+#define RX_MPDU_START_INFO0_FROM_DS           (1 << 11)
+#define RX_MPDU_START_INFO0_TO_DS             (1 << 12)
+#define RX_MPDU_START_INFO0_ENCRYPTED         (1 << 13)
+#define RX_MPDU_START_INFO0_RETRY             (1 << 14)
+#define RX_MPDU_START_INFO0_TXBF_H_INFO       (1 << 15)
+
+#define RX_MPDU_START_INFO1_TID_MASK 0xf0000000
+#define RX_MPDU_START_INFO1_TID_LSB  28
+#define RX_MPDU_START_INFO1_DIRECTED (1 << 16)
+
+struct rx_mpdu_start {
+	__le32 info0;
+	union {
+		struct {
+			__le32 pn31_0;
+			__le32 info1; /* %RX_MPDU_START_INFO1_ */
+		} __packed;
+		struct {
+			u8 pn[6];
+		} __packed;
+	} __packed;
+} __packed;
+
+/*
+ * peer_idx
+ *		The index of the address search table which associated with
+ *		the peer table entry corresponding to this MPDU.  Only valid
+ *		when first_msdu is set.
+ *
+ * fr_ds
+ *		Set if the from DS bit is set in the frame control.  Only
+ *		valid when first_msdu is set.
+ *
+ * to_ds
+ *		Set if the to DS bit is set in the frame control.  Only
+ *		valid when first_msdu is set.
+ *
+ * encrypted
+ *		Protected bit from the frame control.  Only valid when
+ *		first_msdu is set.
+ *
+ * retry
+ *		Retry bit from the frame control.  Only valid when
+ *		first_msdu is set.
+ *
+ * txbf_h_info
+ *		The MPDU data will contain H information.  Primarily used
+ *		for debug.
+ *
+ * seq_num
+ *		The sequence number from the 802.11 header.  Only valid when
+ *		first_msdu is set.
+ *
+ * encrypt_type
+ *		Indicates type of decrypt cipher used (as defined in the
+ *		peer table)
+ *		0: WEP40
+ *		1: WEP104
+ *		2: TKIP without MIC
+ *		3: WEP128
+ *		4: TKIP (WPA)
+ *		5: WAPI
+ *		6: AES-CCM (WPA2)
+ *		7: No cipher
+ *		Only valid when first_msdu_is set
+ *
+ * pn_31_0
+ *		Bits [31:0] of the PN number extracted from the IV field
+ *		WEP: IV = {key_id_octet, pn2, pn1, pn0}.  Only pn[23:0] is
+ *		valid.
+ *		TKIP: IV = {pn5, pn4, pn3, pn2, key_id_octet, pn0,
+ *		WEPSeed[1], pn1}.  Only pn[47:0] is valid.
+ *		AES-CCM: IV = {pn5, pn4, pn3, pn2, key_id_octet, 0x0, pn1,
+ *		pn0}.  Only pn[47:0] is valid.
+ *		WAPI: IV = {key_id_octet, 0x0, pn15, pn14, pn13, pn12, pn11,
+ *		pn10, pn9, pn8, pn7, pn6, pn5, pn4, pn3, pn2, pn1, pn0}.
+ *		The ext_wapi_pn[127:48] in the rx_msdu_misc descriptor and
+ *		pn[47:0] are valid.
+ *		Only valid when first_msdu is set.
+ *
+ * pn_47_32
+ *		Bits [47:32] of the PN number.   See description for
+ *		pn_31_0.  The remaining PN fields are in the rx_msdu_end
+ *		descriptor
+ *
+ * pn
+ *		Use this field to access the pn without worrying about
+ *		byte-order and bitmasking/bitshifting.
+ *
+ * directed
+ *		See definition in RX attention descriptor
+ *
+ * reserved_2
+ *		Reserved: HW should fill with zero.  FW should ignore.
+ *
+ * tid
+ *		The TID field in the QoS control field
+ */
+
+#define RX_MPDU_END_INFO0_RESERVED_0_MASK     0x00001fff
+#define RX_MPDU_END_INFO0_RESERVED_0_LSB      0
+#define RX_MPDU_END_INFO0_POST_DELIM_CNT_MASK 0x0fff0000
+#define RX_MPDU_END_INFO0_POST_DELIM_CNT_LSB  16
+#define RX_MPDU_END_INFO0_OVERFLOW_ERR        (1 << 13)
+#define RX_MPDU_END_INFO0_LAST_MPDU           (1 << 14)
+#define RX_MPDU_END_INFO0_POST_DELIM_ERR      (1 << 15)
+#define RX_MPDU_END_INFO0_MPDU_LENGTH_ERR     (1 << 28)
+#define RX_MPDU_END_INFO0_TKIP_MIC_ERR        (1 << 29)
+#define RX_MPDU_END_INFO0_DECRYPT_ERR         (1 << 30)
+#define RX_MPDU_END_INFO0_FCS_ERR             (1 << 31)
+
+struct rx_mpdu_end {
+	__le32 info0;
+} __packed;
+
+/*
+ * reserved_0
+ *		Reserved
+ *
+ * overflow_err
+ *		PCU Receive FIFO does not have enough space to store the
+ *		full receive packet.  Enough space is reserved in the
+ *		receive FIFO for the status is written.  This MPDU remaining
+ *		packets in the PPDU will be filtered and no Ack response
+ *		will be transmitted.
+ *
+ * last_mpdu
+ *		Indicates that this is the last MPDU of a PPDU.
+ *
+ * post_delim_err
+ *		Indicates that a delimiter FCS error occurred after this
+ *		MPDU before the next MPDU.  Only valid when last_msdu is
+ *		set.
+ *
+ * post_delim_cnt
+ *		Count of the delimiters after this MPDU.  This requires the
+ *		last MPDU to be held until all the EOF descriptors have been
+ *		received.  This may be inefficient in the future when
+ *		ML-MIMO is used.  Only valid when last_mpdu is set.
+ *
+ * mpdu_length_err
+ *		See definition in RX attention descriptor
+ *
+ * tkip_mic_err
+ *		See definition in RX attention descriptor
+ *
+ * decrypt_err
+ *		See definition in RX attention descriptor
+ *
+ * fcs_err
+ *		See definition in RX attention descriptor
+ */
+
+#define RX_MSDU_START_INFO0_MSDU_LENGTH_MASK    0x00003fff
+#define RX_MSDU_START_INFO0_MSDU_LENGTH_LSB     0
+#define RX_MSDU_START_INFO0_IP_OFFSET_MASK      0x000fc000
+#define RX_MSDU_START_INFO0_IP_OFFSET_LSB       14
+#define RX_MSDU_START_INFO0_RING_MASK_MASK      0x00f00000
+#define RX_MSDU_START_INFO0_RING_MASK_LSB       20
+#define RX_MSDU_START_INFO0_TCP_UDP_OFFSET_MASK 0x7f000000
+#define RX_MSDU_START_INFO0_TCP_UDP_OFFSET_LSB  24
+
+#define RX_MSDU_START_INFO1_MSDU_NUMBER_MASK    0x000000ff
+#define RX_MSDU_START_INFO1_MSDU_NUMBER_LSB     0
+#define RX_MSDU_START_INFO1_DECAP_FORMAT_MASK   0x00000300
+#define RX_MSDU_START_INFO1_DECAP_FORMAT_LSB    8
+#define RX_MSDU_START_INFO1_SA_IDX_MASK         0x07ff0000
+#define RX_MSDU_START_INFO1_SA_IDX_LSB          16
+#define RX_MSDU_START_INFO1_IPV4_PROTO          (1 << 10)
+#define RX_MSDU_START_INFO1_IPV6_PROTO          (1 << 11)
+#define RX_MSDU_START_INFO1_TCP_PROTO           (1 << 12)
+#define RX_MSDU_START_INFO1_UDP_PROTO           (1 << 13)
+#define RX_MSDU_START_INFO1_IP_FRAG             (1 << 14)
+#define RX_MSDU_START_INFO1_TCP_ONLY_ACK        (1 << 15)
+
+enum rx_msdu_decap_format {
+	RX_MSDU_DECAP_RAW           = 0,
+	RX_MSDU_DECAP_NATIVE_WIFI   = 1,
+	RX_MSDU_DECAP_ETHERNET2_DIX = 2,
+	RX_MSDU_DECAP_8023_SNAP_LLC = 3
+};
+
+struct rx_msdu_start {
+	__le32 info0; /* %RX_MSDU_START_INFO0_ */
+	__le32 flow_id_crc;
+	__le32 info1; /* %RX_MSDU_START_INFO1_ */
+} __packed;
+
+/*
+ * msdu_length
+ *		MSDU length in bytes after decapsulation.  This field is
+ *		still valid for MPDU frames without A-MSDU.  It still
+ *		represents MSDU length after decapsulation
+ *
+ * ip_offset
+ *		Indicates the IP offset in bytes from the start of the
+ *		packet after decapsulation.  Only valid if ipv4_proto or
+ *		ipv6_proto is set.
+ *
+ * ring_mask
+ *		Indicates the destination RX rings for this MSDU.
+ *
+ * tcp_udp_offset
+ *		Indicates the offset in bytes to the start of TCP or UDP
+ *		header from the start of the IP header after decapsulation.
+ *		Only valid if tcp_prot or udp_prot is set.  The value 0
+ *		indicates that the offset is longer than 127 bytes.
+ *
+ * reserved_0c
+ *		Reserved: HW should fill with zero.  FW should ignore.
+ *
+ * flow_id_crc
+ *		The flow_id_crc runs CRC32 on the following information:
+ *		IPv4 option: dest_addr[31:0], src_addr [31:0], {24'b0,
+ *		protocol[7:0]}.
+ *		IPv6 option: dest_addr[127:0], src_addr [127:0], {24'b0,
+ *		next_header[7:0]}
+ *		UDP case: sort_port[15:0], dest_port[15:0]
+ *		TCP case: sort_port[15:0], dest_port[15:0],
+ *		{header_length[3:0], 6'b0, flags[5:0], window_size[15:0]},
+ *		{16'b0, urgent_ptr[15:0]}, all options except 32-bit
+ *		timestamp.
+ *
+ * msdu_number
+ *		Indicates the MSDU number within a MPDU.  This value is
+ *		reset to zero at the start of each MPDU.  If the number of
+ *		MSDU exceeds 255 this number will wrap using modulo 256.
+ *
+ * decap_format
+ *		Indicates the format after decapsulation:
+ *		0: RAW: No decapsulation
+ *		1: Native WiFi
+ *		2: Ethernet 2 (DIX)
+ *		3: 802.3 (SNAP/LLC)
+ *
+ * ipv4_proto
+ *		Set if L2 layer indicates IPv4 protocol.
+ *
+ * ipv6_proto
+ *		Set if L2 layer indicates IPv6 protocol.
+ *
+ * tcp_proto
+ *		Set if the ipv4_proto or ipv6_proto are set and the IP
+ *		protocol indicates TCP.
+ *
+ * udp_proto
+ *		Set if the ipv4_proto or ipv6_proto are set and the IP
+ *			protocol indicates UDP.
+ *
+ * ip_frag
+ *		Indicates that either the IP More frag bit is set or IP frag
+ *		number is non-zero.  If set indicates that this is a
+ *		fragmented IP packet.
+ *
+ * tcp_only_ack
+ *		Set if only the TCP Ack bit is set in the TCP flags and if
+ *		the TCP payload is 0.
+ *
+ * sa_idx
+ *		The offset in the address table which matches the MAC source
+ *		address.
+ *
+ * reserved_2b
+ *		Reserved: HW should fill with zero.  FW should ignore.
+ */
+
+#define RX_MSDU_END_INFO0_REPORTED_MPDU_LENGTH_MASK 0x00003fff
+#define RX_MSDU_END_INFO0_REPORTED_MPDU_LENGTH_LSB  0
+#define RX_MSDU_END_INFO0_FIRST_MSDU                (1 << 14)
+#define RX_MSDU_END_INFO0_LAST_MSDU                 (1 << 15)
+#define RX_MSDU_END_INFO0_PRE_DELIM_ERR             (1 << 30)
+#define RX_MSDU_END_INFO0_RESERVED_3B               (1 << 31)
+
+struct rx_msdu_end {
+	__le16 ip_hdr_cksum;
+	__le16 tcp_hdr_cksum;
+	u8 key_id_octet;
+	u8 classification_filter;
+	u8 wapi_pn[10];
+	__le32 info0;
+} __packed;
+
+/*
+ *ip_hdr_chksum
+ *		This can include the IP header checksum or the pseudo header
+ *		checksum used by TCP/UDP checksum.
+ *
+ *tcp_udp_chksum
+ *		The value of the computed TCP/UDP checksum.  A mode bit
+ *		selects whether this checksum is the full checksum or the
+ *		partial checksum which does not include the pseudo header.
+ *
+ *key_id_octet
+ *		The key ID octet from the IV.  Only valid when first_msdu is
+ *		set.
+ *
+ *classification_filter
+ *		Indicates the number classification filter rule
+ *
+ *ext_wapi_pn_63_48
+ *		Extension PN (packet number) which is only used by WAPI.
+ *		This corresponds to WAPI PN bits [63:48] (pn6 and pn7).  The
+ *		WAPI PN bits [63:0] are in the pn field of the rx_mpdu_start
+ *		descriptor.
+ *
+ *ext_wapi_pn_95_64
+ *		Extension PN (packet number) which is only used by WAPI.
+ *		This corresponds to WAPI PN bits [95:64] (pn8, pn9, pn10 and
+ *		pn11).
+ *
+ *ext_wapi_pn_127_96
+ *		Extension PN (packet number) which is only used by WAPI.
+ *		This corresponds to WAPI PN bits [127:96] (pn12, pn13, pn14,
+ *		pn15).
+ *
+ *reported_mpdu_length
+ *		MPDU length before decapsulation.  Only valid when
+ *		first_msdu is set.  This field is taken directly from the
+ *		length field of the A-MPDU delimiter or the preamble length
+ *		field for non-A-MPDU frames.
+ *
+ *first_msdu
+ *		Indicates the first MSDU of A-MSDU.  If both first_msdu and
+ *		last_msdu are set in the MSDU then this is a non-aggregated
+ *		MSDU frame: normal MPDU.  Interior MSDU in an A-MSDU shall
+ *		have both first_mpdu and last_mpdu bits set to 0.
+ *
+ *last_msdu
+ *		Indicates the last MSDU of the A-MSDU.  MPDU end status is
+ *		only valid when last_msdu is set.
+ *
+ *reserved_3a
+ *		Reserved: HW should fill with zero.  FW should ignore.
+ *
+ *pre_delim_err
+ *		Indicates that the first delimiter had a FCS failure.  Only
+ *		valid when first_mpdu and first_msdu are set.
+ *
+ *reserved_3b
+ *		Reserved: HW should fill with zero.  FW should ignore.
+ */
+
+#define RX_PPDU_START_SIG_RATE_SELECT_OFDM 0
+#define RX_PPDU_START_SIG_RATE_SELECT_CCK  1
+
+#define RX_PPDU_START_SIG_RATE_OFDM_48 0
+#define RX_PPDU_START_SIG_RATE_OFDM_24 1
+#define RX_PPDU_START_SIG_RATE_OFDM_12 2
+#define RX_PPDU_START_SIG_RATE_OFDM_6  3
+#define RX_PPDU_START_SIG_RATE_OFDM_54 4
+#define RX_PPDU_START_SIG_RATE_OFDM_36 5
+#define RX_PPDU_START_SIG_RATE_OFDM_18 6
+#define RX_PPDU_START_SIG_RATE_OFDM_9  7
+
+#define RX_PPDU_START_SIG_RATE_CCK_LP_11  0
+#define RX_PPDU_START_SIG_RATE_CCK_LP_5_5 1
+#define RX_PPDU_START_SIG_RATE_CCK_LP_2   2
+#define RX_PPDU_START_SIG_RATE_CCK_LP_1   3
+#define RX_PPDU_START_SIG_RATE_CCK_SP_11  4
+#define RX_PPDU_START_SIG_RATE_CCK_SP_5_5 5
+#define RX_PPDU_START_SIG_RATE_CCK_SP_2   6
+
+#define HTT_RX_PPDU_START_PREAMBLE_LEGACY        0x04
+#define HTT_RX_PPDU_START_PREAMBLE_HT            0x08
+#define HTT_RX_PPDU_START_PREAMBLE_HT_WITH_TXBF  0x09
+#define HTT_RX_PPDU_START_PREAMBLE_VHT           0x0C
+#define HTT_RX_PPDU_START_PREAMBLE_VHT_WITH_TXBF 0x0D
+
+#define RX_PPDU_START_INFO0_IS_GREENFIELD (1 << 0)
+
+#define RX_PPDU_START_INFO1_L_SIG_RATE_MASK    0x0000000f
+#define RX_PPDU_START_INFO1_L_SIG_RATE_LSB     0
+#define RX_PPDU_START_INFO1_L_SIG_LENGTH_MASK  0x0001ffe0
+#define RX_PPDU_START_INFO1_L_SIG_LENGTH_LSB   5
+#define RX_PPDU_START_INFO1_L_SIG_TAIL_MASK    0x00fc0000
+#define RX_PPDU_START_INFO1_L_SIG_TAIL_LSB     18
+#define RX_PPDU_START_INFO1_PREAMBLE_TYPE_MASK 0xff000000
+#define RX_PPDU_START_INFO1_PREAMBLE_TYPE_LSB  24
+#define RX_PPDU_START_INFO1_L_SIG_RATE_SELECT  (1 << 4)
+#define RX_PPDU_START_INFO1_L_SIG_PARITY       (1 << 17)
+
+#define RX_PPDU_START_INFO2_HT_SIG_VHT_SIG_A_1_MASK 0x00ffffff
+#define RX_PPDU_START_INFO2_HT_SIG_VHT_SIG_A_1_LSB  0
+
+#define RX_PPDU_START_INFO3_HT_SIG_VHT_SIG_A_2_MASK 0x00ffffff
+#define RX_PPDU_START_INFO3_HT_SIG_VHT_SIG_A_2_LSB  0
+#define RX_PPDU_START_INFO3_TXBF_H_INFO             (1 << 24)
+
+#define RX_PPDU_START_INFO4_VHT_SIG_B_MASK 0x1fffffff
+#define RX_PPDU_START_INFO4_VHT_SIG_B_LSB  0
+
+#define RX_PPDU_START_INFO5_SERVICE_MASK 0x0000ffff
+#define RX_PPDU_START_INFO5_SERVICE_LSB  0
+
+struct rx_ppdu_start {
+	struct {
+		u8 pri20_mhz;
+		u8 ext20_mhz;
+		u8 ext40_mhz;
+		u8 ext80_mhz;
+	} rssi_chains[4];
+	u8 rssi_comb;
+	__le16 rsvd0;
+	u8 info0; /* %RX_PPDU_START_INFO0_ */
+	__le32 info1; /* %RX_PPDU_START_INFO1_ */
+	__le32 info2; /* %RX_PPDU_START_INFO2_ */
+	__le32 info3; /* %RX_PPDU_START_INFO3_ */
+	__le32 info4; /* %RX_PPDU_START_INFO4_ */
+	__le32 info5; /* %RX_PPDU_START_INFO5_ */
+} __packed;
+
+/*
+ * rssi_chain0_pri20
+ *		RSSI of RX PPDU on chain 0 of primary 20 MHz bandwidth.
+ *		Value of 0x80 indicates invalid.
+ *
+ * rssi_chain0_sec20
+ *		RSSI of RX PPDU on chain 0 of secondary 20 MHz bandwidth.
+ *		Value of 0x80 indicates invalid.
+ *
+ * rssi_chain0_sec40
+ *		RSSI of RX PPDU on chain 0 of secondary 40 MHz bandwidth.
+ *		Value of 0x80 indicates invalid.
+ *
+ * rssi_chain0_sec80
+ *		RSSI of RX PPDU on chain 0 of secondary 80 MHz bandwidth.
+ *		Value of 0x80 indicates invalid.
+ *
+ * rssi_chain1_pri20
+ *		RSSI of RX PPDU on chain 1 of primary 20 MHz bandwidth.
+ *		Value of 0x80 indicates invalid.
+ *
+ * rssi_chain1_sec20
+ *		RSSI of RX PPDU on chain 1 of secondary 20 MHz bandwidth.
+ *		Value of 0x80 indicates invalid.
+ *
+ * rssi_chain1_sec40
+ *		RSSI of RX PPDU on chain 1 of secondary 40 MHz bandwidth.
+ *		Value of 0x80 indicates invalid.
+ *
+ * rssi_chain1_sec80
+ *		RSSI of RX PPDU on chain 1 of secondary 80 MHz bandwidth.
+ *		Value of 0x80 indicates invalid.
+ *
+ * rssi_chain2_pri20
+ *		RSSI of RX PPDU on chain 2 of primary 20 MHz bandwidth.
+ *		Value of 0x80 indicates invalid.
+ *
+ * rssi_chain2_sec20
+ *		RSSI of RX PPDU on chain 2 of secondary 20 MHz bandwidth.
+ *		Value of 0x80 indicates invalid.
+ *
+ * rssi_chain2_sec40
+ *		RSSI of RX PPDU on chain 2 of secondary 40 MHz bandwidth.
+ *		Value of 0x80 indicates invalid.
+ *
+ * rssi_chain2_sec80
+ *		RSSI of RX PPDU on chain 2 of secondary 80 MHz bandwidth.
+ *		Value of 0x80 indicates invalid.
+ *
+ * rssi_chain3_pri20
+ *		RSSI of RX PPDU on chain 3 of primary 20 MHz bandwidth.
+ *		Value of 0x80 indicates invalid.
+ *
+ * rssi_chain3_sec20
+ *		RSSI of RX PPDU on chain 3 of secondary 20 MHz bandwidth.
+ *		Value of 0x80 indicates invalid.
+ *
+ * rssi_chain3_sec40
+ *		RSSI of RX PPDU on chain 3 of secondary 40 MHz bandwidth.
+ *		Value of 0x80 indicates invalid.
+ *
+ * rssi_chain3_sec80
+ *		RSSI of RX PPDU on chain 3 of secondary 80 MHz bandwidth.
+ *		Value of 0x80 indicates invalid.
+ *
+ * rssi_comb
+ *		The combined RSSI of RX PPDU of all active chains and
+ *		bandwidths.  Value of 0x80 indicates invalid.
+ *
+ * reserved_4a
+ *		Reserved: HW should fill with 0, FW should ignore.
+ *
+ * is_greenfield
+ *		Do we really support this?
+ *
+ * reserved_4b
+ *		Reserved: HW should fill with 0, FW should ignore.
+ *
+ * l_sig_rate
+ *		If l_sig_rate_select is 0:
+ *		0x8: OFDM 48 Mbps
+ *		0x9: OFDM 24 Mbps
+ *		0xA: OFDM 12 Mbps
+ *		0xB: OFDM 6 Mbps
+ *		0xC: OFDM 54 Mbps
+ *		0xD: OFDM 36 Mbps
+ *		0xE: OFDM 18 Mbps
+ *		0xF: OFDM 9 Mbps
+ *		If l_sig_rate_select is 1:
+ *		0x8: CCK 11 Mbps long preamble
+ *		0x9: CCK 5.5 Mbps long preamble
+ *		0xA: CCK 2 Mbps long preamble
+ *		0xB: CCK 1 Mbps long preamble
+ *		0xC: CCK 11 Mbps short preamble
+ *		0xD: CCK 5.5 Mbps short preamble
+ *		0xE: CCK 2 Mbps short preamble
+ *
+ * l_sig_rate_select
+ *		Legacy signal rate select.  If set then l_sig_rate indicates
+ *		CCK rates.  If clear then l_sig_rate indicates OFDM rates.
+ *
+ * l_sig_length
+ *		Length of legacy frame in octets.
+ *
+ * l_sig_parity
+ *		Odd parity over l_sig_rate and l_sig_length
+ *
+ * l_sig_tail
+ *		Tail bits for Viterbi decoder
+ *
+ * preamble_type
+ *		Indicates the type of preamble ahead:
+ *		0x4: Legacy (OFDM/CCK)
+ *		0x8: HT
+ *		0x9: HT with TxBF
+ *		0xC: VHT
+ *		0xD: VHT with TxBF
+ *		0x80 - 0xFF: Reserved for special baseband data types such
+ *		as radar and spectral scan.
+ *
+ * ht_sig_vht_sig_a_1
+ *		If preamble_type == 0x8 or 0x9
+ *		HT-SIG (first 24 bits)
+ *		If preamble_type == 0xC or 0xD
+ *		VHT-SIG A (first 24 bits)
+ *		Else
+ *		Reserved
+ *
+ * reserved_6
+ *		Reserved: HW should fill with 0, FW should ignore.
+ *
+ * ht_sig_vht_sig_a_2
+ *		If preamble_type == 0x8 or 0x9
+ *		HT-SIG (last 24 bits)
+ *		If preamble_type == 0xC or 0xD
+ *		VHT-SIG A (last 24 bits)
+ *		Else
+ *		Reserved
+ *
+ * txbf_h_info
+ *		Indicates that the packet data carries H information which
+ *		is used for TxBF debug.
+ *
+ * reserved_7
+ *		Reserved: HW should fill with 0, FW should ignore.
+ *
+ * vht_sig_b
+ *		WiFi 1.0 and WiFi 2.0 will likely have this field to be all
+ *		0s since the BB does not plan on decoding VHT SIG-B.
+ *
+ * reserved_8
+ *		Reserved: HW should fill with 0, FW should ignore.
+ *
+ * service
+ *		Service field from BB for OFDM, HT and VHT packets.  CCK
+ *		packets will have service field of 0.
+ *
+ * reserved_9
+ *		Reserved: HW should fill with 0, FW should ignore.
+*/
+
+
+#define RX_PPDU_END_FLAGS_PHY_ERR             (1 << 0)
+#define RX_PPDU_END_FLAGS_RX_LOCATION         (1 << 1)
+#define RX_PPDU_END_FLAGS_TXBF_H_INFO         (1 << 2)
+
+#define RX_PPDU_END_INFO0_RX_ANTENNA_MASK     0x00ffffff
+#define RX_PPDU_END_INFO0_RX_ANTENNA_LSB      0
+#define RX_PPDU_END_INFO0_FLAGS_TX_HT_VHT_ACK (1 << 24)
+#define RX_PPDU_END_INFO0_BB_CAPTURED_CHANNEL (1 << 25)
+
+#define RX_PPDU_END_INFO1_PPDU_DONE (1 << 15)
+
+struct rx_ppdu_end {
+	__le32 evm_p0;
+	__le32 evm_p1;
+	__le32 evm_p2;
+	__le32 evm_p3;
+	__le32 evm_p4;
+	__le32 evm_p5;
+	__le32 evm_p6;
+	__le32 evm_p7;
+	__le32 evm_p8;
+	__le32 evm_p9;
+	__le32 evm_p10;
+	__le32 evm_p11;
+	__le32 evm_p12;
+	__le32 evm_p13;
+	__le32 evm_p14;
+	__le32 evm_p15;
+	__le32 tsf_timestamp;
+	__le32 wb_timestamp;
+	u8 locationing_timestamp;
+	u8 phy_err_code;
+	__le16 flags; /* %RX_PPDU_END_FLAGS_ */
+	__le32 info0; /* %RX_PPDU_END_INFO0_ */
+	__le16 bb_length;
+	__le16 info1; /* %RX_PPDU_END_INFO1_ */
+} __packed;
+
+/*
+ * evm_p0
+ *		EVM for pilot 0.  Contain EVM for streams: 0, 1, 2 and 3.
+ *
+ * evm_p1
+ *		EVM for pilot 1.  Contain EVM for streams: 0, 1, 2 and 3.
+ *
+ * evm_p2
+ *		EVM for pilot 2.  Contain EVM for streams: 0, 1, 2 and 3.
+ *
+ * evm_p3
+ *		EVM for pilot 3.  Contain EVM for streams: 0, 1, 2 and 3.
+ *
+ * evm_p4
+ *		EVM for pilot 4.  Contain EVM for streams: 0, 1, 2 and 3.
+ *
+ * evm_p5
+ *		EVM for pilot 5.  Contain EVM for streams: 0, 1, 2 and 3.
+ *
+ * evm_p6
+ *		EVM for pilot 6.  Contain EVM for streams: 0, 1, 2 and 3.
+ *
+ * evm_p7
+ *		EVM for pilot 7.  Contain EVM for streams: 0, 1, 2 and 3.
+ *
+ * evm_p8
+ *		EVM for pilot 8.  Contain EVM for streams: 0, 1, 2 and 3.
+ *
+ * evm_p9
+ *		EVM for pilot 9.  Contain EVM for streams: 0, 1, 2 and 3.
+ *
+ * evm_p10
+ *		EVM for pilot 10.  Contain EVM for streams: 0, 1, 2 and 3.
+ *
+ * evm_p11
+ *		EVM for pilot 11.  Contain EVM for streams: 0, 1, 2 and 3.
+ *
+ * evm_p12
+ *		EVM for pilot 12.  Contain EVM for streams: 0, 1, 2 and 3.
+ *
+ * evm_p13
+ *		EVM for pilot 13.  Contain EVM for streams: 0, 1, 2 and 3.
+ *
+ * evm_p14
+ *		EVM for pilot 14.  Contain EVM for streams: 0, 1, 2 and 3.
+ *
+ * evm_p15
+ *		EVM for pilot 15.  Contain EVM for streams: 0, 1, 2 and 3.
+ *
+ * tsf_timestamp
+ *		Receive TSF timestamp sampled on the rising edge of
+ *		rx_clear.  For PHY errors this may be the current TSF when
+ *		phy_error is asserted if the rx_clear does not assert before
+ *		the end of the PHY error.
+ *
+ * wb_timestamp
+ *		WLAN/BT timestamp is a 1 usec resolution timestamp which
+ *		does not get updated based on receive beacon like TSF.  The
+ *		same rules for capturing tsf_timestamp are used to capture
+ *		the wb_timestamp.
+ *
+ * locationing_timestamp
+ *		Timestamp used for locationing.  This timestamp is used to
+ *		indicate fractions of usec.  For example if the MAC clock is
+ *		running at 80 MHz, the timestamp will increment every 12.5
+ *		nsec.  The value starts at 0 and increments to 79 and
+ *		returns to 0 and repeats.  This information is valid for
+ *		every PPDU.  This information can be used in conjunction
+ *		with wb_timestamp to capture large delta times.
+ *
+ * phy_err_code
+ *		See the 1.10.8.1.2 for the list of the PHY error codes.
+ *
+ * phy_err
+ *		Indicates a PHY error was detected for this PPDU.
+ *
+ * rx_location
+ *		Indicates that location information was requested.
+ *
+ * txbf_h_info
+ *		Indicates that the packet data carries H information which
+ *		is used for TxBF debug.
+ *
+ * reserved_18
+ *		Reserved: HW should fill with 0, FW should ignore.
+ *
+ * rx_antenna
+ *		Receive antenna value
+ *
+ * tx_ht_vht_ack
+ *		Indicates that a HT or VHT Ack/BA frame was transmitted in
+ *		response to this receive packet.
+ *
+ * bb_captured_channel
+ *		Indicates that the BB has captured a channel dump.  FW can
+ *		then read the channel dump memory.  This may indicate that
+ *		the channel was captured either based on PCU setting the
+ *		capture_channel bit  BB descriptor or FW setting the
+ *		capture_channel mode bit.
+ *
+ * reserved_19
+ *		Reserved: HW should fill with 0, FW should ignore.
+ *
+ * bb_length
+ *		Indicates the number of bytes of baseband information for
+ *		PPDUs where the BB descriptor preamble type is 0x80 to 0xFF
+ *		which indicates that this is not a normal PPDU but rather
+ *		contains baseband debug information.
+ *
+ * reserved_20
+ *		Reserved: HW should fill with 0, FW should ignore.
+ *
+ * ppdu_done
+ *		PPDU end status is only valid when ppdu_done bit is set.
+ *		Every time HW sets this bit in memory FW/SW must clear this
+ *		bit in memory.  FW will initialize all the ppdu_done dword
+ *		to 0.
+*/
+
+#define FW_RX_DESC_INFO0_DISCARD  (1 << 0)
+#define FW_RX_DESC_INFO0_FORWARD  (1 << 1)
+#define FW_RX_DESC_INFO0_INSPECT  (1 << 5)
+#define FW_RX_DESC_INFO0_EXT_MASK 0xC0
+#define FW_RX_DESC_INFO0_EXT_LSB  6
+
+struct fw_rx_desc_base {
+	u8 info0;
+} __packed;
+
+#endif /* _RX_DESC_H_ */

drivers/net/wireless/ath/ath10k/targaddrs.h

@@ -0,0 +1,449 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef __TARGADDRS_H__
+#define __TARGADDRS_H__
+
+/*
+ * xxx_HOST_INTEREST_ADDRESS is the address in Target RAM of the
+ * host_interest structure.  It must match the address of the _host_interest
+ * symbol (see linker script).
+ *
+ * Host Interest is shared between Host and Target in order to coordinate
+ * between the two, and is intended to remain constant (with additions only
+ * at the end) across software releases.
+ *
+ * All addresses are available here so that it's possible to
+ * write a single binary that works with all Target Types.
+ * May be used in assembler code as well as C.
+ */
+#define QCA988X_HOST_INTEREST_ADDRESS    0x00400800
+#define HOST_INTEREST_MAX_SIZE          0x200
+
+/*
+ * These are items that the Host may need to access via BMI or via the
+ * Diagnostic Window. The position of items in this structure must remain
+ * constant across firmware revisions! Types for each item must be fixed
+ * size across target and host platforms. More items may be added at the end.
+ */
+struct host_interest {
+	/*
+	 * Pointer to application-defined area, if any.
+	 * Set by Target application during startup.
+	 */
+	u32 hi_app_host_interest;			/* 0x00 */
+
+	/* Pointer to register dump area, valid after Target crash. */
+	u32 hi_failure_state;				/* 0x04 */
+
+	/* Pointer to debug logging header */
+	u32 hi_dbglog_hdr;				/* 0x08 */
+
+	u32 hi_unused0c;				/* 0x0c */
+
+	/*
+	 * General-purpose flag bits, similar to SOC_OPTION_* flags.
+	 * Can be used by application rather than by OS.
+	 */
+	u32 hi_option_flag;				/* 0x10 */
+
+	/*
+	 * Boolean that determines whether or not to
+	 * display messages on the serial port.
+	 */
+	u32 hi_serial_enable;				/* 0x14 */
+
+	/* Start address of DataSet index, if any */
+	u32 hi_dset_list_head;				/* 0x18 */
+
+	/* Override Target application start address */
+	u32 hi_app_start;				/* 0x1c */
+
+	/* Clock and voltage tuning */
+	u32 hi_skip_clock_init;				/* 0x20 */
+	u32 hi_core_clock_setting;			/* 0x24 */
+	u32 hi_cpu_clock_setting;			/* 0x28 */
+	u32 hi_system_sleep_setting;			/* 0x2c */
+	u32 hi_xtal_control_setting;			/* 0x30 */
+	u32 hi_pll_ctrl_setting_24ghz;			/* 0x34 */
+	u32 hi_pll_ctrl_setting_5ghz;			/* 0x38 */
+	u32 hi_ref_voltage_trim_setting;		/* 0x3c */
+	u32 hi_clock_info;				/* 0x40 */
+
+	/* Host uses BE CPU or not */
+	u32 hi_be;					/* 0x44 */
+
+	u32 hi_stack;	/* normal stack */			/* 0x48 */
+	u32 hi_err_stack; /* error stack */		/* 0x4c */
+	u32 hi_desired_cpu_speed_hz;			/* 0x50 */
+
+	/* Pointer to Board Data  */
+	u32 hi_board_data;				/* 0x54 */
+
+	/*
+	 * Indication of Board Data state:
+	 *    0: board data is not yet initialized.
+	 *    1: board data is initialized; unknown size
+	 *   >1: number of bytes of initialized board data
+	 */
+	u32 hi_board_data_initialized;			/* 0x58 */
+
+	u32 hi_dset_ram_index_table;			/* 0x5c */
+
+	u32 hi_desired_baud_rate;			/* 0x60 */
+	u32 hi_dbglog_config;				/* 0x64 */
+	u32 hi_end_ram_reserve_sz;			/* 0x68 */
+	u32 hi_mbox_io_block_sz;			/* 0x6c */
+
+	u32 hi_num_bpatch_streams;			/* 0x70 -- unused */
+	u32 hi_mbox_isr_yield_limit;			/* 0x74 */
+
+	u32 hi_refclk_hz;				/* 0x78 */
+	u32 hi_ext_clk_detected;			/* 0x7c */
+	u32 hi_dbg_uart_txpin;				/* 0x80 */
+	u32 hi_dbg_uart_rxpin;				/* 0x84 */
+	u32 hi_hci_uart_baud;				/* 0x88 */
+	u32 hi_hci_uart_pin_assignments;		/* 0x8C */
+
+	u32 hi_hci_uart_baud_scale_val;			/* 0x90 */
+	u32 hi_hci_uart_baud_step_val;			/* 0x94 */
+
+	u32 hi_allocram_start;				/* 0x98 */
+	u32 hi_allocram_sz;				/* 0x9c */
+	u32 hi_hci_bridge_flags;			/* 0xa0 */
+	u32 hi_hci_uart_support_pins;			/* 0xa4 */
+
+	u32 hi_hci_uart_pwr_mgmt_params;		/* 0xa8 */
+
+	/*
+	 * 0xa8 - [1]: 0 = UART FC active low, 1 = UART FC active high
+	 *        [31:16]: wakeup timeout in ms
+	 */
+	/* Pointer to extended board Data  */
+	u32 hi_board_ext_data;				/* 0xac */
+	u32 hi_board_ext_data_config;			/* 0xb0 */
+	/*
+	 * Bit [0]  :   valid
+	 * Bit[31:16:   size
+	 */
+	/*
+	 * hi_reset_flag is used to do some stuff when target reset.
+	 * such as restore app_start after warm reset or
+	 * preserve host Interest area, or preserve ROM data, literals etc.
+	 */
+	u32  hi_reset_flag;				/* 0xb4 */
+	/* indicate hi_reset_flag is valid */
+	u32  hi_reset_flag_valid;			/* 0xb8 */
+	u32 hi_hci_uart_pwr_mgmt_params_ext;		/* 0xbc */
+	/* 0xbc - [31:0]: idle timeout in ms */
+	/* ACS flags */
+	u32 hi_acs_flags;				/* 0xc0 */
+	u32 hi_console_flags;				/* 0xc4 */
+	u32 hi_nvram_state;				/* 0xc8 */
+	u32 hi_option_flag2;				/* 0xcc */
+
+	/* If non-zero, override values sent to Host in WMI_READY event. */
+	u32 hi_sw_version_override;			/* 0xd0 */
+	u32 hi_abi_version_override;			/* 0xd4 */
+
+	/*
+	 * Percentage of high priority RX traffic to total expected RX traffic
+	 * applicable only to ar6004
+	 */
+	u32 hi_hp_rx_traffic_ratio;			/* 0xd8 */
+
+	/* test applications flags */
+	u32 hi_test_apps_related;			/* 0xdc */
+	/* location of test script */
+	u32 hi_ota_testscript;				/* 0xe0 */
+	/* location of CAL data */
+	u32 hi_cal_data;				/* 0xe4 */
+
+	/* Number of packet log buffers */
+	u32 hi_pktlog_num_buffers;			/* 0xe8 */
+
+	/* wow extension configuration */
+	u32 hi_wow_ext_config;				/* 0xec */
+	u32 hi_pwr_save_flags;				/* 0xf0 */
+
+	/* Spatial Multiplexing Power Save (SMPS) options */
+	u32 hi_smps_options;				/* 0xf4 */
+
+	/* Interconnect-specific state */
+	u32 hi_interconnect_state;			/* 0xf8 */
+
+	/* Coex configuration flags */
+	u32 hi_coex_config;				/* 0xfc */
+
+	/* Early allocation support */
+	u32 hi_early_alloc;				/* 0x100 */
+	/* FW swap field */
+	/*
+	 * Bits of this 32bit word will be used to pass specific swap
+	 * instruction to FW
+	 */
+	/*
+	 * Bit 0 -- AP Nart descriptor no swap. When this bit is set
+	 * FW will not swap TX descriptor. Meaning packets are formed
+	 * on the target processor.
+	 */
+	/* Bit 1 - unused */
+	u32 hi_fw_swap;					/* 0x104 */
+} __packed;
+
+#define HI_ITEM(item)  offsetof(struct host_interest, item)
+
+/* Bits defined in hi_option_flag */
+
+/* Enable timer workaround */
+#define HI_OPTION_TIMER_WAR         0x01
+/* Limit BMI command credits */
+#define HI_OPTION_BMI_CRED_LIMIT    0x02
+/* Relay Dot11 hdr to/from host */
+#define HI_OPTION_RELAY_DOT11_HDR   0x04
+/* MAC addr method 0-locally administred 1-globally unique addrs */
+#define HI_OPTION_MAC_ADDR_METHOD   0x08
+/* Firmware Bridging */
+#define HI_OPTION_FW_BRIDGE         0x10
+/* Enable CPU profiling */
+#define HI_OPTION_ENABLE_PROFILE    0x20
+/* Disable debug logging */
+#define HI_OPTION_DISABLE_DBGLOG    0x40
+/* Skip Era Tracking */
+#define HI_OPTION_SKIP_ERA_TRACKING 0x80
+/* Disable PAPRD (debug) */
+#define HI_OPTION_PAPRD_DISABLE     0x100
+#define HI_OPTION_NUM_DEV_LSB       0x200
+#define HI_OPTION_NUM_DEV_MSB       0x800
+#define HI_OPTION_DEV_MODE_LSB      0x1000
+#define HI_OPTION_DEV_MODE_MSB      0x8000000
+/* Disable LowFreq Timer Stabilization */
+#define HI_OPTION_NO_LFT_STBL       0x10000000
+/* Skip regulatory scan */
+#define HI_OPTION_SKIP_REG_SCAN     0x20000000
+/*
+ * Do regulatory scan during init before
+ * sending WMI ready event to host
+ */
+#define HI_OPTION_INIT_REG_SCAN     0x40000000
+
+/* REV6: Do not adjust memory map */
+#define HI_OPTION_SKIP_MEMMAP       0x80000000
+
+#define HI_OPTION_MAC_ADDR_METHOD_SHIFT 3
+
+/* 2 bits of hi_option_flag are used to represent 3 modes */
+#define HI_OPTION_FW_MODE_IBSS    0x0 /* IBSS Mode */
+#define HI_OPTION_FW_MODE_BSS_STA 0x1 /* STA Mode */
+#define HI_OPTION_FW_MODE_AP      0x2 /* AP Mode */
+#define HI_OPTION_FW_MODE_BT30AMP 0x3 /* BT30 AMP Mode */
+
+/* 2 bits of hi_option flag are usedto represent 4 submodes */
+#define HI_OPTION_FW_SUBMODE_NONE    0x0  /* Normal mode */
+#define HI_OPTION_FW_SUBMODE_P2PDEV  0x1  /* p2p device mode */
+#define HI_OPTION_FW_SUBMODE_P2PCLIENT 0x2 /* p2p client mode */
+#define HI_OPTION_FW_SUBMODE_P2PGO   0x3 /* p2p go mode */
+
+/* Num dev Mask */
+#define HI_OPTION_NUM_DEV_MASK    0x7
+#define HI_OPTION_NUM_DEV_SHIFT   0x9
+
+/* firmware bridging */
+#define HI_OPTION_FW_BRIDGE_SHIFT 0x04
+
+/*
+Fw Mode/SubMode Mask
+|-----------------------------------------------------------------------------|
+|  SUB   |   SUB   |   SUB   |  SUB    |         |         |         |        |
+|MODE[3] | MODE[2] | MODE[1] | MODE[0] | MODE[3] | MODE[2] | MODE[1] | MODE[0]|
+|  (2)   |   (2)   |   (2)   |   (2)   |   (2)   |   (2)   |   (2)   |   (2)  |
+|-----------------------------------------------------------------------------|
+*/
+#define HI_OPTION_FW_MODE_BITS         0x2
+#define HI_OPTION_FW_MODE_MASK         0x3
+#define HI_OPTION_FW_MODE_SHIFT        0xC
+#define HI_OPTION_ALL_FW_MODE_MASK     0xFF
+
+#define HI_OPTION_FW_SUBMODE_BITS      0x2
+#define HI_OPTION_FW_SUBMODE_MASK      0x3
+#define HI_OPTION_FW_SUBMODE_SHIFT     0x14
+#define HI_OPTION_ALL_FW_SUBMODE_MASK  0xFF00
+#define HI_OPTION_ALL_FW_SUBMODE_SHIFT 0x8
+
+
+/* hi_option_flag2 options */
+#define HI_OPTION_OFFLOAD_AMSDU     0x01
+#define HI_OPTION_DFS_SUPPORT       0x02 /* Enable DFS support */
+#define HI_OPTION_ENABLE_RFKILL     0x04 /* RFKill Enable Feature*/
+#define HI_OPTION_RADIO_RETENTION_DISABLE 0x08 /* Disable radio retention */
+#define HI_OPTION_EARLY_CFG_DONE    0x10 /* Early configuration is complete */
+
+#define HI_OPTION_RF_KILL_SHIFT     0x2
+#define HI_OPTION_RF_KILL_MASK      0x1
+
+/* hi_reset_flag */
+/* preserve App Start address */
+#define HI_RESET_FLAG_PRESERVE_APP_START         0x01
+/* preserve host interest */
+#define HI_RESET_FLAG_PRESERVE_HOST_INTEREST     0x02
+/* preserve ROM data */
+#define HI_RESET_FLAG_PRESERVE_ROMDATA           0x04
+#define HI_RESET_FLAG_PRESERVE_NVRAM_STATE       0x08
+#define HI_RESET_FLAG_PRESERVE_BOOT_INFO         0x10
+#define HI_RESET_FLAG_WARM_RESET	0x20
+
+/* define hi_fw_swap bits */
+#define HI_DESC_IN_FW_BIT	0x01
+
+/* indicate the reset flag is valid */
+#define HI_RESET_FLAG_IS_VALID  0x12345678
+
+/* ACS is enabled */
+#define HI_ACS_FLAGS_ENABLED        (1 << 0)
+/* Use physical WWAN device */
+#define HI_ACS_FLAGS_USE_WWAN       (1 << 1)
+/* Use test VAP */
+#define HI_ACS_FLAGS_TEST_VAP       (1 << 2)
+
+/*
+ * CONSOLE FLAGS
+ *
+ * Bit Range  Meaning
+ * ---------  --------------------------------
+ *   2..0     UART ID (0 = Default)
+ *    3       Baud Select (0 = 9600, 1 = 115200)
+ *   30..4    Reserved
+ *    31      Enable Console
+ *
+ */
+
+#define HI_CONSOLE_FLAGS_ENABLE       (1 << 31)
+#define HI_CONSOLE_FLAGS_UART_MASK    (0x7)
+#define HI_CONSOLE_FLAGS_UART_SHIFT   0
+#define HI_CONSOLE_FLAGS_BAUD_SELECT  (1 << 3)
+
+/* SM power save options */
+#define HI_SMPS_ALLOW_MASK            (0x00000001)
+#define HI_SMPS_MODE_MASK             (0x00000002)
+#define HI_SMPS_MODE_STATIC           (0x00000000)
+#define HI_SMPS_MODE_DYNAMIC          (0x00000002)
+#define HI_SMPS_DISABLE_AUTO_MODE     (0x00000004)
+#define HI_SMPS_DATA_THRESH_MASK      (0x000007f8)
+#define HI_SMPS_DATA_THRESH_SHIFT     (3)
+#define HI_SMPS_RSSI_THRESH_MASK      (0x0007f800)
+#define HI_SMPS_RSSI_THRESH_SHIFT     (11)
+#define HI_SMPS_LOWPWR_CM_MASK        (0x00380000)
+#define HI_SMPS_LOWPWR_CM_SHIFT       (15)
+#define HI_SMPS_HIPWR_CM_MASK         (0x03c00000)
+#define HI_SMPS_HIPWR_CM_SHIFT        (19)
+
+/*
+ * WOW Extension configuration
+ *
+ * Bit Range  Meaning
+ * ---------  --------------------------------
+ *   8..0     Size of each WOW pattern (max 511)
+ *   15..9    Number of patterns per list (max 127)
+ *   17..16   Number of lists (max 4)
+ *   30..18   Reserved
+ *   31       Enabled
+ *
+ *  set values (except enable) to zeros for default settings
+ */
+
+#define HI_WOW_EXT_ENABLED_MASK        (1 << 31)
+#define HI_WOW_EXT_NUM_LIST_SHIFT      16
+#define HI_WOW_EXT_NUM_LIST_MASK       (0x3 << HI_WOW_EXT_NUM_LIST_SHIFT)
+#define HI_WOW_EXT_NUM_PATTERNS_SHIFT  9
+#define HI_WOW_EXT_NUM_PATTERNS_MASK   (0x7F << HI_WOW_EXT_NUM_PATTERNS_SHIFT)
+#define HI_WOW_EXT_PATTERN_SIZE_SHIFT  0
+#define HI_WOW_EXT_PATTERN_SIZE_MASK   (0x1FF << HI_WOW_EXT_PATTERN_SIZE_SHIFT)
+
+#define HI_WOW_EXT_MAKE_CONFIG(num_lists, count, size) \
+	((((num_lists) << HI_WOW_EXT_NUM_LIST_SHIFT) & \
+		HI_WOW_EXT_NUM_LIST_MASK) | \
+	(((count) << HI_WOW_EXT_NUM_PATTERNS_SHIFT) & \
+		HI_WOW_EXT_NUM_PATTERNS_MASK) | \
+	(((size) << HI_WOW_EXT_PATTERN_SIZE_SHIFT) & \
+		HI_WOW_EXT_PATTERN_SIZE_MASK))
+
+#define HI_WOW_EXT_GET_NUM_LISTS(config) \
+	(((config) & HI_WOW_EXT_NUM_LIST_MASK) >> HI_WOW_EXT_NUM_LIST_SHIFT)
+#define HI_WOW_EXT_GET_NUM_PATTERNS(config) \
+	(((config) & HI_WOW_EXT_NUM_PATTERNS_MASK) >> \
+		HI_WOW_EXT_NUM_PATTERNS_SHIFT)
+#define HI_WOW_EXT_GET_PATTERN_SIZE(config) \
+	(((config) & HI_WOW_EXT_PATTERN_SIZE_MASK) >> \
+		HI_WOW_EXT_PATTERN_SIZE_SHIFT)
+
+/*
+ * Early allocation configuration
+ * Support RAM bank configuration before BMI done and this eases the memory
+ * allocation at very early stage
+ * Bit Range  Meaning
+ * ---------  ----------------------------------
+ * [0:3]      number of bank assigned to be IRAM
+ * [4:15]     reserved
+ * [16:31]    magic number
+ *
+ * Note:
+ * 1. target firmware would check magic number and if it's a match, firmware
+ *    would consider the bits[0:15] are valid and base on that to calculate
+ *    the end of DRAM. Early allocation would be located at that area and
+ *    may be reclaimed when necesary
+ * 2. if no magic number is found, early allocation would happen at "_end"
+ *    symbol of ROM which is located before the app-data and might NOT be
+ *    re-claimable. If this is adopted, link script should keep this in
+ *    mind to avoid data corruption.
+ */
+#define HI_EARLY_ALLOC_MAGIC		0x6d8a
+#define HI_EARLY_ALLOC_MAGIC_MASK	0xffff0000
+#define HI_EARLY_ALLOC_MAGIC_SHIFT	16
+#define HI_EARLY_ALLOC_IRAM_BANKS_MASK	0x0000000f
+#define HI_EARLY_ALLOC_IRAM_BANKS_SHIFT	0
+
+#define HI_EARLY_ALLOC_VALID() \
+	((((HOST_INTEREST->hi_early_alloc) & HI_EARLY_ALLOC_MAGIC_MASK) >> \
+	HI_EARLY_ALLOC_MAGIC_SHIFT) == (HI_EARLY_ALLOC_MAGIC))
+#define HI_EARLY_ALLOC_GET_IRAM_BANKS() \
+	(((HOST_INTEREST->hi_early_alloc) & HI_EARLY_ALLOC_IRAM_BANKS_MASK) \
+	>> HI_EARLY_ALLOC_IRAM_BANKS_SHIFT)
+
+/*power save flag bit definitions*/
+#define HI_PWR_SAVE_LPL_ENABLED   0x1
+/*b1-b3 reserved*/
+/*b4-b5 : dev0 LPL type : 0 - none
+			  1- Reduce Pwr Search
+			  2- Reduce Pwr Listen*/
+/*b6-b7 : dev1 LPL type and so on for Max 8 devices*/
+#define HI_PWR_SAVE_LPL_DEV0_LSB   4
+#define HI_PWR_SAVE_LPL_DEV_MASK   0x3
+/*power save related utility macros*/
+#define HI_LPL_ENABLED() \
+	((HOST_INTEREST->hi_pwr_save_flags & HI_PWR_SAVE_LPL_ENABLED))
+#define HI_DEV_LPL_TYPE_GET(_devix) \
+	(HOST_INTEREST->hi_pwr_save_flags & ((HI_PWR_SAVE_LPL_DEV_MASK) << \
+	 (HI_PWR_SAVE_LPL_DEV0_LSB + (_devix)*2)))
+
+#define HOST_INTEREST_SMPS_IS_ALLOWED() \
+	((HOST_INTEREST->hi_smps_options & HI_SMPS_ALLOW_MASK))
+
+/* Reserve 1024 bytes for extended board data */
+#define QCA988X_BOARD_DATA_SZ     7168
+#define QCA988X_BOARD_EXT_DATA_SZ 0
+
+#endif /* __TARGADDRS_H__ */

drivers/net/wireless/ath/ath10k/trace.c

@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2012 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/module.h>
+
+#define CREATE_TRACE_POINTS
+#include "trace.h"

drivers/net/wireless/ath/ath10k/trace.h

@@ -0,0 +1,170 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#if !defined(_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ)
+
+#include <linux/tracepoint.h>
+
+#define _TRACE_H_
+
+/* create empty functions when tracing is disabled */
+#if !defined(CONFIG_ATH10K_TRACING)
+#undef TRACE_EVENT
+#define TRACE_EVENT(name, proto, ...) \
+static inline void trace_ ## name(proto) {}
+#undef DECLARE_EVENT_CLASS
+#define DECLARE_EVENT_CLASS(...)
+#undef DEFINE_EVENT
+#define DEFINE_EVENT(evt_class, name, proto, ...) \
+static inline void trace_ ## name(proto) {}
+#endif /* !CONFIG_ATH10K_TRACING || __CHECKER__ */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM ath10k
+
+#define ATH10K_MSG_MAX 200
+
+DECLARE_EVENT_CLASS(ath10k_log_event,
+	TP_PROTO(struct va_format *vaf),
+	TP_ARGS(vaf),
+	TP_STRUCT__entry(
+		__dynamic_array(char, msg, ATH10K_MSG_MAX)
+	),
+	TP_fast_assign(
+		WARN_ON_ONCE(vsnprintf(__get_dynamic_array(msg),
+				       ATH10K_MSG_MAX,
+				       vaf->fmt,
+				       *vaf->va) >= ATH10K_MSG_MAX);
+	),
+	TP_printk("%s", __get_str(msg))
+);
+
+DEFINE_EVENT(ath10k_log_event, ath10k_log_err,
+	     TP_PROTO(struct va_format *vaf),
+	     TP_ARGS(vaf)
+);
+
+DEFINE_EVENT(ath10k_log_event, ath10k_log_warn,
+	     TP_PROTO(struct va_format *vaf),
+	     TP_ARGS(vaf)
+);
+
+DEFINE_EVENT(ath10k_log_event, ath10k_log_info,
+	     TP_PROTO(struct va_format *vaf),
+	     TP_ARGS(vaf)
+);
+
+TRACE_EVENT(ath10k_log_dbg,
+	TP_PROTO(unsigned int level, struct va_format *vaf),
+	TP_ARGS(level, vaf),
+	TP_STRUCT__entry(
+		__field(unsigned int, level)
+		__dynamic_array(char, msg, ATH10K_MSG_MAX)
+	),
+	TP_fast_assign(
+		__entry->level = level;
+		WARN_ON_ONCE(vsnprintf(__get_dynamic_array(msg),
+				       ATH10K_MSG_MAX,
+				       vaf->fmt,
+				       *vaf->va) >= ATH10K_MSG_MAX);
+	),
+	TP_printk("%s", __get_str(msg))
+);
+
+TRACE_EVENT(ath10k_log_dbg_dump,
+	TP_PROTO(const char *msg, const char *prefix,
+		 const void *buf, size_t buf_len),
+
+	TP_ARGS(msg, prefix, buf, buf_len),
+
+	TP_STRUCT__entry(
+		__string(msg, msg)
+		__string(prefix, prefix)
+		__field(size_t, buf_len)
+		__dynamic_array(u8, buf, buf_len)
+	),
+
+	TP_fast_assign(
+		__assign_str(msg, msg);
+		__assign_str(prefix, prefix);
+		__entry->buf_len = buf_len;
+		memcpy(__get_dynamic_array(buf), buf, buf_len);
+	),
+
+	TP_printk(
+		"%s/%s\n", __get_str(prefix), __get_str(msg)
+	)
+);
+
+TRACE_EVENT(ath10k_wmi_cmd,
+	TP_PROTO(int id, void *buf, size_t buf_len),
+
+	TP_ARGS(id, buf, buf_len),
+
+	TP_STRUCT__entry(
+		__field(unsigned int, id)
+		__field(size_t, buf_len)
+		__dynamic_array(u8, buf, buf_len)
+	),
+
+	TP_fast_assign(
+		__entry->id = id;
+		__entry->buf_len = buf_len;
+		memcpy(__get_dynamic_array(buf), buf, buf_len);
+	),
+
+	TP_printk(
+		"id %d len %zu",
+		__entry->id,
+		__entry->buf_len
+	)
+);
+
+TRACE_EVENT(ath10k_wmi_event,
+	TP_PROTO(int id, void *buf, size_t buf_len),
+
+	TP_ARGS(id, buf, buf_len),
+
+	TP_STRUCT__entry(
+		__field(unsigned int, id)
+		__field(size_t, buf_len)
+		__dynamic_array(u8, buf, buf_len)
+	),
+
+	TP_fast_assign(
+		__entry->id = id;
+		__entry->buf_len = buf_len;
+		memcpy(__get_dynamic_array(buf), buf, buf_len);
+	),
+
+	TP_printk(
+		"id %d len %zu",
+		__entry->id,
+		__entry->buf_len
+	)
+);
+
+#endif /* _TRACE_H_ || TRACE_HEADER_MULTI_READ*/
+
+/* we don't want to use include/trace/events */
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE trace
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>

drivers/net/wireless/ath/ath10k/txrx.c

@@ -0,0 +1,417 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "core.h"
+#include "txrx.h"
+#include "htt.h"
+#include "mac.h"
+#include "debug.h"
+
+static void ath10k_report_offchan_tx(struct ath10k *ar, struct sk_buff *skb)
+{
+	if (!ATH10K_SKB_CB(skb)->htt.is_offchan)
+		return;
+
+	/* If the original wait_for_completion() timed out before
+	 * {data,mgmt}_tx_completed() was called then we could complete
+	 * offchan_tx_completed for a different skb. Prevent this by using
+	 * offchan_tx_skb. */
+	spin_lock_bh(&ar->data_lock);
+	if (ar->offchan_tx_skb != skb) {
+		ath10k_warn("completed old offchannel frame\n");
+		goto out;
+	}
+
+	complete(&ar->offchan_tx_completed);
+	ar->offchan_tx_skb = NULL; /* just for sanity */
+
+	ath10k_dbg(ATH10K_DBG_HTT, "completed offchannel skb %p\n", skb);
+out:
+	spin_unlock_bh(&ar->data_lock);
+}
+
+void ath10k_txrx_tx_unref(struct ath10k_htt *htt, struct sk_buff *txdesc)
+{
+	struct device *dev = htt->ar->dev;
+	struct ieee80211_tx_info *info;
+	struct sk_buff *txfrag = ATH10K_SKB_CB(txdesc)->htt.txfrag;
+	struct sk_buff *msdu = ATH10K_SKB_CB(txdesc)->htt.msdu;
+	int ret;
+
+	if (ATH10K_SKB_CB(txdesc)->htt.refcount == 0)
+		return;
+
+	ATH10K_SKB_CB(txdesc)->htt.refcount--;
+
+	if (ATH10K_SKB_CB(txdesc)->htt.refcount > 0)
+		return;
+
+	if (txfrag) {
+		ret = ath10k_skb_unmap(dev, txfrag);
+		if (ret)
+			ath10k_warn("txfrag unmap failed (%d)\n", ret);
+
+		dev_kfree_skb_any(txfrag);
+	}
+
+	ret = ath10k_skb_unmap(dev, msdu);
+	if (ret)
+		ath10k_warn("data skb unmap failed (%d)\n", ret);
+
+	ath10k_report_offchan_tx(htt->ar, msdu);
+
+	info = IEEE80211_SKB_CB(msdu);
+	memset(&info->status, 0, sizeof(info->status));
+
+	if (ATH10K_SKB_CB(txdesc)->htt.discard) {
+		ieee80211_free_txskb(htt->ar->hw, msdu);
+		goto exit;
+	}
+
+	if (!(info->flags & IEEE80211_TX_CTL_NO_ACK))
+		info->flags |= IEEE80211_TX_STAT_ACK;
+
+	if (ATH10K_SKB_CB(txdesc)->htt.no_ack)
+		info->flags &= ~IEEE80211_TX_STAT_ACK;
+
+	ieee80211_tx_status(htt->ar->hw, msdu);
+	/* we do not own the msdu anymore */
+
+exit:
+	spin_lock_bh(&htt->tx_lock);
+	htt->pending_tx[ATH10K_SKB_CB(txdesc)->htt.msdu_id] = NULL;
+	ath10k_htt_tx_free_msdu_id(htt, ATH10K_SKB_CB(txdesc)->htt.msdu_id);
+	__ath10k_htt_tx_dec_pending(htt);
+	if (bitmap_empty(htt->used_msdu_ids, htt->max_num_pending_tx))
+		wake_up(&htt->empty_tx_wq);
+	spin_unlock_bh(&htt->tx_lock);
+
+	dev_kfree_skb_any(txdesc);
+}
+
+void ath10k_txrx_tx_completed(struct ath10k_htt *htt,
+			      const struct htt_tx_done *tx_done)
+{
+	struct sk_buff *txdesc;
+
+	ath10k_dbg(ATH10K_DBG_HTT, "htt tx completion msdu_id %u discard %d no_ack %d\n",
+		   tx_done->msdu_id, !!tx_done->discard, !!tx_done->no_ack);
+
+	if (tx_done->msdu_id >= htt->max_num_pending_tx) {
+		ath10k_warn("warning: msdu_id %d too big, ignoring\n",
+			    tx_done->msdu_id);
+		return;
+	}
+
+	txdesc = htt->pending_tx[tx_done->msdu_id];
+
+	ATH10K_SKB_CB(txdesc)->htt.discard = tx_done->discard;
+	ATH10K_SKB_CB(txdesc)->htt.no_ack = tx_done->no_ack;
+
+	ath10k_txrx_tx_unref(htt, txdesc);
+}
+
+static const u8 rx_legacy_rate_idx[] = {
+	3,	/* 0x00  - 11Mbps  */
+	2,	/* 0x01  - 5.5Mbps */
+	1,	/* 0x02  - 2Mbps   */
+	0,	/* 0x03  - 1Mbps   */
+	3,	/* 0x04  - 11Mbps  */
+	2,	/* 0x05  - 5.5Mbps */
+	1,	/* 0x06  - 2Mbps   */
+	0,	/* 0x07  - 1Mbps   */
+	10,	/* 0x08  - 48Mbps  */
+	8,	/* 0x09  - 24Mbps  */
+	6,	/* 0x0A  - 12Mbps  */
+	4,	/* 0x0B  - 6Mbps   */
+	11,	/* 0x0C  - 54Mbps  */
+	9,	/* 0x0D  - 36Mbps  */
+	7,	/* 0x0E  - 18Mbps  */
+	5,	/* 0x0F  - 9Mbps   */
+};
+
+static void process_rx_rates(struct ath10k *ar, struct htt_rx_info *info,
+			     enum ieee80211_band band,
+			     struct ieee80211_rx_status *status)
+{
+	u8 cck, rate, rate_idx, bw, sgi, mcs, nss;
+	u8 info0 = info->rate.info0;
+	u32 info1 = info->rate.info1;
+	u32 info2 = info->rate.info2;
+	u8 preamble = 0;
+
+	/* Check if valid fields */
+	if (!(info0 & HTT_RX_INDICATION_INFO0_START_VALID))
+		return;
+
+	preamble = MS(info1, HTT_RX_INDICATION_INFO1_PREAMBLE_TYPE);
+
+	switch (preamble) {
+	case HTT_RX_LEGACY:
+		cck = info0 & HTT_RX_INDICATION_INFO0_LEGACY_RATE_CCK;
+		rate = MS(info0, HTT_RX_INDICATION_INFO0_LEGACY_RATE);
+		rate_idx = 0;
+
+		if (rate < 0x08 || rate > 0x0F)
+			break;
+
+		switch (band) {
+		case IEEE80211_BAND_2GHZ:
+			if (cck)
+				rate &= ~BIT(3);
+			rate_idx = rx_legacy_rate_idx[rate];
+			break;
+		case IEEE80211_BAND_5GHZ:
+			rate_idx = rx_legacy_rate_idx[rate];
+			/* We are using same rate table registering
+			   HW - ath10k_rates[]. In case of 5GHz skip
+			   CCK rates, so -4 here */
+			rate_idx -= 4;
+			break;
+		default:
+			break;
+		}
+
+		status->rate_idx = rate_idx;
+		break;
+	case HTT_RX_HT:
+	case HTT_RX_HT_WITH_TXBF:
+		/* HT-SIG - Table 20-11 in info1 and info2 */
+		mcs = info1 & 0x1F;
+		nss = mcs >> 3;
+		bw = (info1 >> 7) & 1;
+		sgi = (info2 >> 7) & 1;
+
+		status->rate_idx = mcs;
+		status->flag |= RX_FLAG_HT;
+		if (sgi)
+			status->flag |= RX_FLAG_SHORT_GI;
+		if (bw)
+			status->flag |= RX_FLAG_40MHZ;
+		break;
+	case HTT_RX_VHT:
+	case HTT_RX_VHT_WITH_TXBF:
+		/* VHT-SIG-A1 in info 1, VHT-SIG-A2 in info2
+		   TODO check this */
+		mcs = (info2 >> 4) & 0x0F;
+		nss = (info1 >> 10) & 0x07;
+		bw = info1 & 3;
+		sgi = info2 & 1;
+
+		status->rate_idx = mcs;
+		status->vht_nss = nss;
+
+		if (sgi)
+			status->flag |= RX_FLAG_SHORT_GI;
+
+		switch (bw) {
+		/* 20MHZ */
+		case 0:
+			break;
+		/* 40MHZ */
+		case 1:
+			status->flag |= RX_FLAG_40MHZ;
+			break;
+		/* 80MHZ */
+		case 2:
+			status->flag |= RX_FLAG_80MHZ;
+		}
+
+		status->flag |= RX_FLAG_VHT;
+		break;
+	default:
+		break;
+	}
+}
+
+void ath10k_process_rx(struct ath10k *ar, struct htt_rx_info *info)
+{
+	struct ieee80211_rx_status *status;
+	struct ieee80211_channel *ch;
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)info->skb->data;
+
+	status = IEEE80211_SKB_RXCB(info->skb);
+	memset(status, 0, sizeof(*status));
+
+	if (info->encrypt_type != HTT_RX_MPDU_ENCRYPT_NONE) {
+		status->flag |= RX_FLAG_DECRYPTED | RX_FLAG_IV_STRIPPED |
+				RX_FLAG_MMIC_STRIPPED;
+		hdr->frame_control = __cpu_to_le16(
+				__le16_to_cpu(hdr->frame_control) &
+				~IEEE80211_FCTL_PROTECTED);
+	}
+
+	if (info->status == HTT_RX_IND_MPDU_STATUS_TKIP_MIC_ERR)
+		status->flag |= RX_FLAG_MMIC_ERROR;
+
+	if (info->fcs_err)
+		status->flag |= RX_FLAG_FAILED_FCS_CRC;
+
+	status->signal = info->signal;
+
+	spin_lock_bh(&ar->data_lock);
+	ch = ar->scan_channel;
+	if (!ch)
+		ch = ar->rx_channel;
+	spin_unlock_bh(&ar->data_lock);
+
+	if (!ch) {
+		ath10k_warn("no channel configured; ignoring frame!\n");
+		dev_kfree_skb_any(info->skb);
+		return;
+	}
+
+	process_rx_rates(ar, info, ch->band, status);
+	status->band = ch->band;
+	status->freq = ch->center_freq;
+
+	ath10k_dbg(ATH10K_DBG_DATA,
+		   "rx skb %p len %u %s%s%s%s%s %srate_idx %u vht_nss %u freq %u band %u\n",
+		   info->skb,
+		   info->skb->len,
+		   status->flag == 0 ? "legacy" : "",
+		   status->flag & RX_FLAG_HT ? "ht" : "",
+		   status->flag & RX_FLAG_VHT ? "vht" : "",
+		   status->flag & RX_FLAG_40MHZ ? "40" : "",
+		   status->flag & RX_FLAG_80MHZ ? "80" : "",
+		   status->flag & RX_FLAG_SHORT_GI ? "sgi " : "",
+		   status->rate_idx,
+		   status->vht_nss,
+		   status->freq,
+		   status->band);
+
+	ieee80211_rx(ar->hw, info->skb);
+}
+
+struct ath10k_peer *ath10k_peer_find(struct ath10k *ar, int vdev_id,
+				     const u8 *addr)
+{
+	struct ath10k_peer *peer;
+
+	lockdep_assert_held(&ar->data_lock);
+
+	list_for_each_entry(peer, &ar->peers, list) {
+		if (peer->vdev_id != vdev_id)
+			continue;
+		if (memcmp(peer->addr, addr, ETH_ALEN))
+			continue;
+
+		return peer;
+	}
+
+	return NULL;
+}
+
+static struct ath10k_peer *ath10k_peer_find_by_id(struct ath10k *ar,
+						  int peer_id)
+{
+	struct ath10k_peer *peer;
+
+	lockdep_assert_held(&ar->data_lock);
+
+	list_for_each_entry(peer, &ar->peers, list)
+		if (test_bit(peer_id, peer->peer_ids))
+			return peer;
+
+	return NULL;
+}
+
+static int ath10k_wait_for_peer_common(struct ath10k *ar, int vdev_id,
+				       const u8 *addr, bool expect_mapped)
+{
+	int ret;
+
+	ret = wait_event_timeout(ar->peer_mapping_wq, ({
+			bool mapped;
+
+			spin_lock_bh(&ar->data_lock);
+			mapped = !!ath10k_peer_find(ar, vdev_id, addr);
+			spin_unlock_bh(&ar->data_lock);
+
+			mapped == expect_mapped;
+		}), 3*HZ);
+
+	if (ret <= 0)
+		return -ETIMEDOUT;
+
+	return 0;
+}
+
+int ath10k_wait_for_peer_created(struct ath10k *ar, int vdev_id, const u8 *addr)
+{
+	return ath10k_wait_for_peer_common(ar, vdev_id, addr, true);
+}
+
+int ath10k_wait_for_peer_deleted(struct ath10k *ar, int vdev_id, const u8 *addr)
+{
+	return ath10k_wait_for_peer_common(ar, vdev_id, addr, false);
+}
+
+void ath10k_peer_map_event(struct ath10k_htt *htt,
+			   struct htt_peer_map_event *ev)
+{
+	struct ath10k *ar = htt->ar;
+	struct ath10k_peer *peer;
+
+	spin_lock_bh(&ar->data_lock);
+	peer = ath10k_peer_find(ar, ev->vdev_id, ev->addr);
+	if (!peer) {
+		peer = kzalloc(sizeof(*peer), GFP_ATOMIC);
+		if (!peer)
+			goto exit;
+
+		peer->vdev_id = ev->vdev_id;
+		memcpy(peer->addr, ev->addr, ETH_ALEN);
+		list_add(&peer->list, &ar->peers);
+		wake_up(&ar->peer_mapping_wq);
+	}
+
+	ath10k_dbg(ATH10K_DBG_HTT, "htt peer map vdev %d peer %pM id %d\n",
+		   ev->vdev_id, ev->addr, ev->peer_id);
+
+	set_bit(ev->peer_id, peer->peer_ids);
+exit:
+	spin_unlock_bh(&ar->data_lock);
+}
+
+void ath10k_peer_unmap_event(struct ath10k_htt *htt,
+			     struct htt_peer_unmap_event *ev)
+{
+	struct ath10k *ar = htt->ar;
+	struct ath10k_peer *peer;
+
+	spin_lock_bh(&ar->data_lock);
+	peer = ath10k_peer_find_by_id(ar, ev->peer_id);
+	if (!peer) {
+		ath10k_warn("unknown peer id %d\n", ev->peer_id);
+		goto exit;
+	}
+
+	ath10k_dbg(ATH10K_DBG_HTT, "htt peer unmap vdev %d peer %pM id %d\n",
+		   peer->vdev_id, peer->addr, ev->peer_id);
+
+	clear_bit(ev->peer_id, peer->peer_ids);
+
+	if (bitmap_empty(peer->peer_ids, ATH10K_MAX_NUM_PEER_IDS)) {
+		list_del(&peer->list);
+		kfree(peer);
+		wake_up(&ar->peer_mapping_wq);
+	}
+
+exit:
+	spin_unlock_bh(&ar->data_lock);
+}

drivers/net/wireless/ath/ath10k/txrx.h

@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#ifndef _TXRX_H_
+#define _TXRX_H_
+
+#include "htt.h"
+
+void ath10k_txrx_tx_unref(struct ath10k_htt *htt, struct sk_buff *txdesc);
+void ath10k_txrx_tx_completed(struct ath10k_htt *htt,
+			      const struct htt_tx_done *tx_done);
+void ath10k_process_rx(struct ath10k *ar, struct htt_rx_info *info);
+
+struct ath10k_peer *ath10k_peer_find(struct ath10k *ar, int vdev_id,
+				     const u8 *addr);
+int ath10k_wait_for_peer_created(struct ath10k *ar, int vdev_id,
+				 const u8 *addr);
+int ath10k_wait_for_peer_deleted(struct ath10k *ar, int vdev_id,
+				 const u8 *addr);
+
+void ath10k_peer_map_event(struct ath10k_htt *htt,
+			   struct htt_peer_map_event *ev);
+void ath10k_peer_unmap_event(struct ath10k_htt *htt,
+			     struct htt_peer_unmap_event *ev);
+
+#endif

drivers/net/wireless/ath/ath10k/wmi.c

@@ -0,0 +1,2081 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/skbuff.h>
+
+#include "core.h"
+#include "htc.h"
+#include "debug.h"
+#include "wmi.h"
+#include "mac.h"
+
+void ath10k_wmi_flush_tx(struct ath10k *ar)
+{
+	int ret;
+
+	ret = wait_event_timeout(ar->wmi.wq,
+				 atomic_read(&ar->wmi.pending_tx_count) == 0,
+				 5*HZ);
+	if (atomic_read(&ar->wmi.pending_tx_count) == 0)
+		return;
+
+	if (ret == 0)
+		ret = -ETIMEDOUT;
+
+	if (ret < 0)
+		ath10k_warn("wmi flush failed (%d)\n", ret);
+}
+
+int ath10k_wmi_wait_for_service_ready(struct ath10k *ar)
+{
+	int ret;
+	ret = wait_for_completion_timeout(&ar->wmi.service_ready,
+					  WMI_SERVICE_READY_TIMEOUT_HZ);
+	return ret;
+}
+
+int ath10k_wmi_wait_for_unified_ready(struct ath10k *ar)
+{
+	int ret;
+	ret = wait_for_completion_timeout(&ar->wmi.unified_ready,
+					  WMI_UNIFIED_READY_TIMEOUT_HZ);
+	return ret;
+}
+
+static struct sk_buff *ath10k_wmi_alloc_skb(u32 len)
+{
+	struct sk_buff *skb;
+	u32 round_len = roundup(len, 4);
+
+	skb = ath10k_htc_alloc_skb(WMI_SKB_HEADROOM + round_len);
+	if (!skb)
+		return NULL;
+
+	skb_reserve(skb, WMI_SKB_HEADROOM);
+	if (!IS_ALIGNED((unsigned long)skb->data, 4))
+		ath10k_warn("Unaligned WMI skb\n");
+
+	skb_put(skb, round_len);
+	memset(skb->data, 0, round_len);
+
+	return skb;
+}
+
+static void ath10k_wmi_htc_tx_complete(struct ath10k *ar, struct sk_buff *skb)
+{
+	dev_kfree_skb(skb);
+
+	if (atomic_sub_return(1, &ar->wmi.pending_tx_count) == 0)
+		wake_up(&ar->wmi.wq);
+}
+
+/* WMI command API */
+static int ath10k_wmi_cmd_send(struct ath10k *ar, struct sk_buff *skb,
+			       enum wmi_cmd_id cmd_id)
+{
+	struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(skb);
+	struct wmi_cmd_hdr *cmd_hdr;
+	int status;
+	u32 cmd = 0;
+
+	if (skb_push(skb, sizeof(struct wmi_cmd_hdr)) == NULL)
+		return -ENOMEM;
+
+	cmd |= SM(cmd_id, WMI_CMD_HDR_CMD_ID);
+
+	cmd_hdr = (struct wmi_cmd_hdr *)skb->data;
+	cmd_hdr->cmd_id = __cpu_to_le32(cmd);
+
+	if (atomic_add_return(1, &ar->wmi.pending_tx_count) >
+	    WMI_MAX_PENDING_TX_COUNT) {
+		/* avoid using up memory when FW hangs */
+		atomic_dec(&ar->wmi.pending_tx_count);
+		return -EBUSY;
+	}
+
+	memset(skb_cb, 0, sizeof(*skb_cb));
+
+	trace_ath10k_wmi_cmd(cmd_id, skb->data, skb->len);
+
+	status = ath10k_htc_send(ar->htc, ar->wmi.eid, skb);
+	if (status) {
+		dev_kfree_skb_any(skb);
+		atomic_dec(&ar->wmi.pending_tx_count);
+		return status;
+	}
+
+	return 0;
+}
+
+static int ath10k_wmi_event_scan(struct ath10k *ar, struct sk_buff *skb)
+{
+	struct wmi_scan_event *event = (struct wmi_scan_event *)skb->data;
+	enum wmi_scan_event_type event_type;
+	enum wmi_scan_completion_reason reason;
+	u32 freq;
+	u32 req_id;
+	u32 scan_id;
+	u32 vdev_id;
+
+	event_type = __le32_to_cpu(event->event_type);
+	reason     = __le32_to_cpu(event->reason);
+	freq       = __le32_to_cpu(event->channel_freq);
+	req_id     = __le32_to_cpu(event->scan_req_id);
+	scan_id    = __le32_to_cpu(event->scan_id);
+	vdev_id    = __le32_to_cpu(event->vdev_id);
+
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_SCAN_EVENTID\n");
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "scan event type %d reason %d freq %d req_id %d "
+		   "scan_id %d vdev_id %d\n",
+		   event_type, reason, freq, req_id, scan_id, vdev_id);
+
+	spin_lock_bh(&ar->data_lock);
+
+	switch (event_type) {
+	case WMI_SCAN_EVENT_STARTED:
+		ath10k_dbg(ATH10K_DBG_WMI, "SCAN_EVENT_STARTED\n");
+		if (ar->scan.in_progress && ar->scan.is_roc)
+			ieee80211_ready_on_channel(ar->hw);
+
+		complete(&ar->scan.started);
+		break;
+	case WMI_SCAN_EVENT_COMPLETED:
+		ath10k_dbg(ATH10K_DBG_WMI, "SCAN_EVENT_COMPLETED\n");
+		switch (reason) {
+		case WMI_SCAN_REASON_COMPLETED:
+			ath10k_dbg(ATH10K_DBG_WMI, "SCAN_REASON_COMPLETED\n");
+			break;
+		case WMI_SCAN_REASON_CANCELLED:
+			ath10k_dbg(ATH10K_DBG_WMI, "SCAN_REASON_CANCELED\n");
+			break;
+		case WMI_SCAN_REASON_PREEMPTED:
+			ath10k_dbg(ATH10K_DBG_WMI, "SCAN_REASON_PREEMPTED\n");
+			break;
+		case WMI_SCAN_REASON_TIMEDOUT:
+			ath10k_dbg(ATH10K_DBG_WMI, "SCAN_REASON_TIMEDOUT\n");
+			break;
+		default:
+			break;
+		}
+
+		ar->scan_channel = NULL;
+		if (!ar->scan.in_progress) {
+			ath10k_warn("no scan requested, ignoring\n");
+			break;
+		}
+
+		if (ar->scan.is_roc) {
+			ath10k_offchan_tx_purge(ar);
+
+			if (!ar->scan.aborting)
+				ieee80211_remain_on_channel_expired(ar->hw);
+		} else {
+			ieee80211_scan_completed(ar->hw, ar->scan.aborting);
+		}
+
+		del_timer(&ar->scan.timeout);
+		complete_all(&ar->scan.completed);
+		ar->scan.in_progress = false;
+		break;
+	case WMI_SCAN_EVENT_BSS_CHANNEL:
+		ath10k_dbg(ATH10K_DBG_WMI, "SCAN_EVENT_BSS_CHANNEL\n");
+		ar->scan_channel = NULL;
+		break;
+	case WMI_SCAN_EVENT_FOREIGN_CHANNEL:
+		ath10k_dbg(ATH10K_DBG_WMI, "SCAN_EVENT_FOREIGN_CHANNEL\n");
+		ar->scan_channel = ieee80211_get_channel(ar->hw->wiphy, freq);
+		if (ar->scan.in_progress && ar->scan.is_roc &&
+		    ar->scan.roc_freq == freq) {
+			complete(&ar->scan.on_channel);
+		}
+		break;
+	case WMI_SCAN_EVENT_DEQUEUED:
+		ath10k_dbg(ATH10K_DBG_WMI, "SCAN_EVENT_DEQUEUED\n");
+		break;
+	case WMI_SCAN_EVENT_PREEMPTED:
+		ath10k_dbg(ATH10K_DBG_WMI, "WMI_SCAN_EVENT_PREEMPTED\n");
+		break;
+	case WMI_SCAN_EVENT_START_FAILED:
+		ath10k_dbg(ATH10K_DBG_WMI, "WMI_SCAN_EVENT_START_FAILED\n");
+		break;
+	default:
+		break;
+	}
+
+	spin_unlock_bh(&ar->data_lock);
+	return 0;
+}
+
+static inline enum ieee80211_band phy_mode_to_band(u32 phy_mode)
+{
+	enum ieee80211_band band;
+
+	switch (phy_mode) {
+	case MODE_11A:
+	case MODE_11NA_HT20:
+	case MODE_11NA_HT40:
+	case MODE_11AC_VHT20:
+	case MODE_11AC_VHT40:
+	case MODE_11AC_VHT80:
+		band = IEEE80211_BAND_5GHZ;
+		break;
+	case MODE_11G:
+	case MODE_11B:
+	case MODE_11GONLY:
+	case MODE_11NG_HT20:
+	case MODE_11NG_HT40:
+	case MODE_11AC_VHT20_2G:
+	case MODE_11AC_VHT40_2G:
+	case MODE_11AC_VHT80_2G:
+	default:
+		band = IEEE80211_BAND_2GHZ;
+	}
+
+	return band;
+}
+
+static inline u8 get_rate_idx(u32 rate, enum ieee80211_band band)
+{
+	u8 rate_idx = 0;
+
+	/* rate in Kbps */
+	switch (rate) {
+	case 1000:
+		rate_idx = 0;
+		break;
+	case 2000:
+		rate_idx = 1;
+		break;
+	case 5500:
+		rate_idx = 2;
+		break;
+	case 11000:
+		rate_idx = 3;
+		break;
+	case 6000:
+		rate_idx = 4;
+		break;
+	case 9000:
+		rate_idx = 5;
+		break;
+	case 12000:
+		rate_idx = 6;
+		break;
+	case 18000:
+		rate_idx = 7;
+		break;
+	case 24000:
+		rate_idx = 8;
+		break;
+	case 36000:
+		rate_idx = 9;
+		break;
+	case 48000:
+		rate_idx = 10;
+		break;
+	case 54000:
+		rate_idx = 11;
+		break;
+	default:
+		break;
+	}
+
+	if (band == IEEE80211_BAND_5GHZ) {
+		if (rate_idx > 3)
+			/* Omit CCK rates */
+			rate_idx -= 4;
+		else
+			rate_idx = 0;
+	}
+
+	return rate_idx;
+}
+
+static int ath10k_wmi_event_mgmt_rx(struct ath10k *ar, struct sk_buff *skb)
+{
+	struct wmi_mgmt_rx_event *event = (struct wmi_mgmt_rx_event *)skb->data;
+	struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
+	struct ieee80211_hdr *hdr;
+	u32 rx_status;
+	u32 channel;
+	u32 phy_mode;
+	u32 snr;
+	u32 rate;
+	u32 buf_len;
+	u16 fc;
+
+	channel   = __le32_to_cpu(event->hdr.channel);
+	buf_len   = __le32_to_cpu(event->hdr.buf_len);
+	rx_status = __le32_to_cpu(event->hdr.status);
+	snr       = __le32_to_cpu(event->hdr.snr);
+	phy_mode  = __le32_to_cpu(event->hdr.phy_mode);
+	rate	  = __le32_to_cpu(event->hdr.rate);
+
+	memset(status, 0, sizeof(*status));
+
+	ath10k_dbg(ATH10K_DBG_MGMT,
+		   "event mgmt rx status %08x\n", rx_status);
+
+	if (rx_status & WMI_RX_STATUS_ERR_DECRYPT) {
+		dev_kfree_skb(skb);
+		return 0;
+	}
+
+	if (rx_status & WMI_RX_STATUS_ERR_KEY_CACHE_MISS) {
+		dev_kfree_skb(skb);
+		return 0;
+	}
+
+	if (rx_status & WMI_RX_STATUS_ERR_CRC)
+		status->flag |= RX_FLAG_FAILED_FCS_CRC;
+	if (rx_status & WMI_RX_STATUS_ERR_MIC)
+		status->flag |= RX_FLAG_MMIC_ERROR;
+
+	status->band = phy_mode_to_band(phy_mode);
+	status->freq = ieee80211_channel_to_frequency(channel, status->band);
+	status->signal = snr + ATH10K_DEFAULT_NOISE_FLOOR;
+	status->rate_idx = get_rate_idx(rate, status->band);
+
+	skb_pull(skb, sizeof(event->hdr));
+
+	hdr = (struct ieee80211_hdr *)skb->data;
+	fc = le16_to_cpu(hdr->frame_control);
+
+	if (fc & IEEE80211_FCTL_PROTECTED) {
+		status->flag |= RX_FLAG_DECRYPTED | RX_FLAG_IV_STRIPPED |
+				RX_FLAG_MMIC_STRIPPED;
+		hdr->frame_control = __cpu_to_le16(fc &
+					~IEEE80211_FCTL_PROTECTED);
+	}
+
+	ath10k_dbg(ATH10K_DBG_MGMT,
+		   "event mgmt rx skb %p len %d ftype %02x stype %02x\n",
+		   skb, skb->len,
+		   fc & IEEE80211_FCTL_FTYPE, fc & IEEE80211_FCTL_STYPE);
+
+	ath10k_dbg(ATH10K_DBG_MGMT,
+		   "event mgmt rx freq %d band %d snr %d, rate_idx %d\n",
+		   status->freq, status->band, status->signal,
+		   status->rate_idx);
+
+	/*
+	 * packets from HTC come aligned to 4byte boundaries
+	 * because they can originally come in along with a trailer
+	 */
+	skb_trim(skb, buf_len);
+
+	ieee80211_rx(ar->hw, skb);
+	return 0;
+}
+
+static void ath10k_wmi_event_chan_info(struct ath10k *ar, struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_CHAN_INFO_EVENTID\n");
+}
+
+static void ath10k_wmi_event_echo(struct ath10k *ar, struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_ECHO_EVENTID\n");
+}
+
+static void ath10k_wmi_event_debug_mesg(struct ath10k *ar, struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_DEBUG_MESG_EVENTID\n");
+}
+
+static void ath10k_wmi_event_update_stats(struct ath10k *ar,
+					  struct sk_buff *skb)
+{
+	struct wmi_stats_event *ev = (struct wmi_stats_event *)skb->data;
+
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_UPDATE_STATS_EVENTID\n");
+
+	ath10k_debug_read_target_stats(ar, ev);
+}
+
+static void ath10k_wmi_event_vdev_start_resp(struct ath10k *ar,
+					     struct sk_buff *skb)
+{
+	struct wmi_vdev_start_response_event *ev;
+
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_VDEV_START_RESP_EVENTID\n");
+
+	ev = (struct wmi_vdev_start_response_event *)skb->data;
+
+	if (WARN_ON(__le32_to_cpu(ev->status)))
+		return;
+
+	complete(&ar->vdev_setup_done);
+}
+
+static void ath10k_wmi_event_vdev_stopped(struct ath10k *ar,
+					  struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_VDEV_STOPPED_EVENTID\n");
+	complete(&ar->vdev_setup_done);
+}
+
+static void ath10k_wmi_event_peer_sta_kickout(struct ath10k *ar,
+					      struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_PEER_STA_KICKOUT_EVENTID\n");
+}
+
+/*
+ * FIXME
+ *
+ * We don't report to mac80211 sleep state of connected
+ * stations. Due to this mac80211 can't fill in TIM IE
+ * correctly.
+ *
+ * I know of no way of getting nullfunc frames that contain
+ * sleep transition from connected stations - these do not
+ * seem to be sent from the target to the host. There also
+ * doesn't seem to be a dedicated event for that. So the
+ * only way left to do this would be to read tim_bitmap
+ * during SWBA.
+ *
+ * We could probably try using tim_bitmap from SWBA to tell
+ * mac80211 which stations are asleep and which are not. The
+ * problem here is calling mac80211 functions so many times
+ * could take too long and make us miss the time to submit
+ * the beacon to the target.
+ *
+ * So as a workaround we try to extend the TIM IE if there
+ * is unicast buffered for stations with aid > 7 and fill it
+ * in ourselves.
+ */
+static void ath10k_wmi_update_tim(struct ath10k *ar,
+				  struct ath10k_vif *arvif,
+				  struct sk_buff *bcn,
+				  struct wmi_bcn_info *bcn_info)
+{
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)bcn->data;
+	struct ieee80211_tim_ie *tim;
+	u8 *ies, *ie;
+	u8 ie_len, pvm_len;
+
+	/* if next SWBA has no tim_changed the tim_bitmap is garbage.
+	 * we must copy the bitmap upon change and reuse it later */
+	if (__le32_to_cpu(bcn_info->tim_info.tim_changed)) {
+		int i;
+
+		BUILD_BUG_ON(sizeof(arvif->u.ap.tim_bitmap) !=
+			     sizeof(bcn_info->tim_info.tim_bitmap));
+
+		for (i = 0; i < sizeof(arvif->u.ap.tim_bitmap); i++) {
+			__le32 t = bcn_info->tim_info.tim_bitmap[i / 4];
+			u32 v = __le32_to_cpu(t);
+			arvif->u.ap.tim_bitmap[i] = (v >> ((i % 4) * 8)) & 0xFF;
+		}
+
+		/* FW reports either length 0 or 16
+		 * so we calculate this on our own */
+		arvif->u.ap.tim_len = 0;
+		for (i = 0; i < sizeof(arvif->u.ap.tim_bitmap); i++)
+			if (arvif->u.ap.tim_bitmap[i])
+				arvif->u.ap.tim_len = i;
+
+		arvif->u.ap.tim_len++;
+	}
+
+	ies = bcn->data;
+	ies += ieee80211_hdrlen(hdr->frame_control);
+	ies += 12; /* fixed parameters */
+
+	ie = (u8 *)cfg80211_find_ie(WLAN_EID_TIM, ies,
+				    (u8 *)skb_tail_pointer(bcn) - ies);
+	if (!ie) {
+		/* highly unlikely for mac80211 */
+		ath10k_warn("no tim ie found;\n");
+		return;
+	}
+
+	tim = (void *)ie + 2;
+	ie_len = ie[1];
+	pvm_len = ie_len - 3; /* exclude dtim count, dtim period, bmap ctl */
+
+	if (pvm_len < arvif->u.ap.tim_len) {
+		int expand_size = sizeof(arvif->u.ap.tim_bitmap) - pvm_len;
+		int move_size = skb_tail_pointer(bcn) - (ie + 2 + ie_len);
+		void *next_ie = ie + 2 + ie_len;
+
+		if (skb_put(bcn, expand_size)) {
+			memmove(next_ie + expand_size, next_ie, move_size);
+
+			ie[1] += expand_size;
+			ie_len += expand_size;
+			pvm_len += expand_size;
+		} else {
+			ath10k_warn("tim expansion failed\n");
+		}
+	}
+
+	if (pvm_len > sizeof(arvif->u.ap.tim_bitmap)) {
+		ath10k_warn("tim pvm length is too great (%d)\n", pvm_len);
+		return;
+	}
+
+	tim->bitmap_ctrl = !!__le32_to_cpu(bcn_info->tim_info.tim_mcast);
+	memcpy(tim->virtual_map, arvif->u.ap.tim_bitmap, pvm_len);
+
+	ath10k_dbg(ATH10K_DBG_MGMT, "dtim %d/%d mcast %d pvmlen %d\n",
+		   tim->dtim_count, tim->dtim_period,
+		   tim->bitmap_ctrl, pvm_len);
+}
+
+static void ath10k_p2p_fill_noa_ie(u8 *data, u32 len,
+				   struct wmi_p2p_noa_info *noa)
+{
+	struct ieee80211_p2p_noa_attr *noa_attr;
+	u8  ctwindow_oppps = noa->ctwindow_oppps;
+	u8 ctwindow = ctwindow_oppps >> WMI_P2P_OPPPS_CTWINDOW_OFFSET;
+	bool oppps = !!(ctwindow_oppps & WMI_P2P_OPPPS_ENABLE_BIT);
+	__le16 *noa_attr_len;
+	u16 attr_len;
+	u8 noa_descriptors = noa->num_descriptors;
+	int i;
+
+	/* P2P IE */
+	data[0] = WLAN_EID_VENDOR_SPECIFIC;
+	data[1] = len - 2;
+	data[2] = (WLAN_OUI_WFA >> 16) & 0xff;
+	data[3] = (WLAN_OUI_WFA >> 8) & 0xff;
+	data[4] = (WLAN_OUI_WFA >> 0) & 0xff;
+	data[5] = WLAN_OUI_TYPE_WFA_P2P;
+
+	/* NOA ATTR */
+	data[6] = IEEE80211_P2P_ATTR_ABSENCE_NOTICE;
+	noa_attr_len = (__le16 *)&data[7]; /* 2 bytes */
+	noa_attr = (struct ieee80211_p2p_noa_attr *)&data[9];
+
+	noa_attr->index = noa->index;
+	noa_attr->oppps_ctwindow = ctwindow;
+	if (oppps)
+		noa_attr->oppps_ctwindow |= IEEE80211_P2P_OPPPS_ENABLE_BIT;
+
+	for (i = 0; i < noa_descriptors; i++) {
+		noa_attr->desc[i].count =
+			__le32_to_cpu(noa->descriptors[i].type_count);
+		noa_attr->desc[i].duration = noa->descriptors[i].duration;
+		noa_attr->desc[i].interval = noa->descriptors[i].interval;
+		noa_attr->desc[i].start_time = noa->descriptors[i].start_time;
+	}
+
+	attr_len = 2; /* index + oppps_ctwindow */
+	attr_len += noa_descriptors * sizeof(struct ieee80211_p2p_noa_desc);
+	*noa_attr_len = __cpu_to_le16(attr_len);
+}
+
+static u32 ath10k_p2p_calc_noa_ie_len(struct wmi_p2p_noa_info *noa)
+{
+	u32 len = 0;
+	u8 noa_descriptors = noa->num_descriptors;
+	u8 opp_ps_info = noa->ctwindow_oppps;
+	bool opps_enabled = !!(opp_ps_info & WMI_P2P_OPPPS_ENABLE_BIT);
+
+
+	if (!noa_descriptors && !opps_enabled)
+		return len;
+
+	len += 1 + 1 + 4; /* EID + len + OUI */
+	len += 1 + 2; /* noa attr  + attr len */
+	len += 1 + 1; /* index + oppps_ctwindow */
+	len += noa_descriptors * sizeof(struct ieee80211_p2p_noa_desc);
+
+	return len;
+}
+
+static void ath10k_wmi_update_noa(struct ath10k *ar, struct ath10k_vif *arvif,
+				  struct sk_buff *bcn,
+				  struct wmi_bcn_info *bcn_info)
+{
+	struct wmi_p2p_noa_info *noa = &bcn_info->p2p_noa_info;
+	u8 *new_data, *old_data = arvif->u.ap.noa_data;
+	u32 new_len;
+
+	if (arvif->vdev_subtype != WMI_VDEV_SUBTYPE_P2P_GO)
+		return;
+
+	ath10k_dbg(ATH10K_DBG_MGMT, "noa changed: %d\n", noa->changed);
+	if (noa->changed & WMI_P2P_NOA_CHANGED_BIT) {
+		new_len = ath10k_p2p_calc_noa_ie_len(noa);
+		if (!new_len)
+			goto cleanup;
+
+		new_data = kmalloc(new_len, GFP_ATOMIC);
+		if (!new_data)
+			goto cleanup;
+
+		ath10k_p2p_fill_noa_ie(new_data, new_len, noa);
+
+		spin_lock_bh(&ar->data_lock);
+		arvif->u.ap.noa_data = new_data;
+		arvif->u.ap.noa_len = new_len;
+		spin_unlock_bh(&ar->data_lock);
+		kfree(old_data);
+	}
+
+	if (arvif->u.ap.noa_data)
+		if (!pskb_expand_head(bcn, 0, arvif->u.ap.noa_len, GFP_ATOMIC))
+			memcpy(skb_put(bcn, arvif->u.ap.noa_len),
+			       arvif->u.ap.noa_data,
+			       arvif->u.ap.noa_len);
+	return;
+
+cleanup:
+	spin_lock_bh(&ar->data_lock);
+	arvif->u.ap.noa_data = NULL;
+	arvif->u.ap.noa_len = 0;
+	spin_unlock_bh(&ar->data_lock);
+	kfree(old_data);
+}
+
+
+static void ath10k_wmi_event_host_swba(struct ath10k *ar, struct sk_buff *skb)
+{
+	struct wmi_host_swba_event *ev;
+	u32 map;
+	int i = -1;
+	struct wmi_bcn_info *bcn_info;
+	struct ath10k_vif *arvif;
+	struct wmi_bcn_tx_arg arg;
+	struct sk_buff *bcn;
+	int vdev_id = 0;
+	int ret;
+
+	ath10k_dbg(ATH10K_DBG_MGMT, "WMI_HOST_SWBA_EVENTID\n");
+
+	ev = (struct wmi_host_swba_event *)skb->data;
+	map = __le32_to_cpu(ev->vdev_map);
+
+	ath10k_dbg(ATH10K_DBG_MGMT, "host swba:\n"
+		   "-vdev map 0x%x\n",
+		   ev->vdev_map);
+
+	for (; map; map >>= 1, vdev_id++) {
+		if (!(map & 0x1))
+			continue;
+
+		i++;
+
+		if (i >= WMI_MAX_AP_VDEV) {
+			ath10k_warn("swba has corrupted vdev map\n");
+			break;
+		}
+
+		bcn_info = &ev->bcn_info[i];
+
+		ath10k_dbg(ATH10K_DBG_MGMT,
+			   "-bcn_info[%d]:\n"
+			   "--tim_len %d\n"
+			   "--tim_mcast %d\n"
+			   "--tim_changed %d\n"
+			   "--tim_num_ps_pending %d\n"
+			   "--tim_bitmap 0x%08x%08x%08x%08x\n",
+			   i,
+			   __le32_to_cpu(bcn_info->tim_info.tim_len),
+			   __le32_to_cpu(bcn_info->tim_info.tim_mcast),
+			   __le32_to_cpu(bcn_info->tim_info.tim_changed),
+			   __le32_to_cpu(bcn_info->tim_info.tim_num_ps_pending),
+			   __le32_to_cpu(bcn_info->tim_info.tim_bitmap[3]),
+			   __le32_to_cpu(bcn_info->tim_info.tim_bitmap[2]),
+			   __le32_to_cpu(bcn_info->tim_info.tim_bitmap[1]),
+			   __le32_to_cpu(bcn_info->tim_info.tim_bitmap[0]));
+
+		arvif = ath10k_get_arvif(ar, vdev_id);
+		if (arvif == NULL) {
+			ath10k_warn("no vif for vdev_id %d found\n", vdev_id);
+			continue;
+		}
+
+		bcn = ieee80211_beacon_get(ar->hw, arvif->vif);
+		if (!bcn) {
+			ath10k_warn("could not get mac80211 beacon\n");
+			continue;
+		}
+
+		ath10k_tx_h_seq_no(bcn);
+		ath10k_wmi_update_tim(ar, arvif, bcn, bcn_info);
+		ath10k_wmi_update_noa(ar, arvif, bcn, bcn_info);
+
+		arg.vdev_id = arvif->vdev_id;
+		arg.tx_rate = 0;
+		arg.tx_power = 0;
+		arg.bcn = bcn->data;
+		arg.bcn_len = bcn->len;
+
+		ret = ath10k_wmi_beacon_send(ar, &arg);
+		if (ret)
+			ath10k_warn("could not send beacon (%d)\n", ret);
+
+		dev_kfree_skb_any(bcn);
+	}
+}
+
+static void ath10k_wmi_event_tbttoffset_update(struct ath10k *ar,
+					       struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_TBTTOFFSET_UPDATE_EVENTID\n");
+}
+
+static void ath10k_wmi_event_phyerr(struct ath10k *ar, struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_PHYERR_EVENTID\n");
+}
+
+static void ath10k_wmi_event_roam(struct ath10k *ar, struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_ROAM_EVENTID\n");
+}
+
+static void ath10k_wmi_event_profile_match(struct ath10k *ar,
+				    struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_PROFILE_MATCH\n");
+}
+
+static void ath10k_wmi_event_debug_print(struct ath10k *ar,
+				  struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_DEBUG_PRINT_EVENTID\n");
+}
+
+static void ath10k_wmi_event_pdev_qvit(struct ath10k *ar, struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_PDEV_QVIT_EVENTID\n");
+}
+
+static void ath10k_wmi_event_wlan_profile_data(struct ath10k *ar,
+					       struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_WLAN_PROFILE_DATA_EVENTID\n");
+}
+
+static void ath10k_wmi_event_rtt_measurement_report(struct ath10k *ar,
+					     struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_RTT_MEASUREMENT_REPORT_EVENTID\n");
+}
+
+static void ath10k_wmi_event_tsf_measurement_report(struct ath10k *ar,
+					     struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_TSF_MEASUREMENT_REPORT_EVENTID\n");
+}
+
+static void ath10k_wmi_event_rtt_error_report(struct ath10k *ar,
+					      struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_RTT_ERROR_REPORT_EVENTID\n");
+}
+
+static void ath10k_wmi_event_wow_wakeup_host(struct ath10k *ar,
+					     struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_WOW_WAKEUP_HOST_EVENTID\n");
+}
+
+static void ath10k_wmi_event_dcs_interference(struct ath10k *ar,
+					      struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_DCS_INTERFERENCE_EVENTID\n");
+}
+
+static void ath10k_wmi_event_pdev_tpc_config(struct ath10k *ar,
+					     struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_PDEV_TPC_CONFIG_EVENTID\n");
+}
+
+static void ath10k_wmi_event_pdev_ftm_intg(struct ath10k *ar,
+					   struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_PDEV_FTM_INTG_EVENTID\n");
+}
+
+static void ath10k_wmi_event_gtk_offload_status(struct ath10k *ar,
+					 struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_GTK_OFFLOAD_STATUS_EVENTID\n");
+}
+
+static void ath10k_wmi_event_gtk_rekey_fail(struct ath10k *ar,
+					    struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_GTK_REKEY_FAIL_EVENTID\n");
+}
+
+static void ath10k_wmi_event_delba_complete(struct ath10k *ar,
+					    struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_TX_DELBA_COMPLETE_EVENTID\n");
+}
+
+static void ath10k_wmi_event_addba_complete(struct ath10k *ar,
+					    struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_TX_ADDBA_COMPLETE_EVENTID\n");
+}
+
+static void ath10k_wmi_event_vdev_install_key_complete(struct ath10k *ar,
+						struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_VDEV_INSTALL_KEY_COMPLETE_EVENTID\n");
+}
+
+static void ath10k_wmi_service_ready_event_rx(struct ath10k *ar,
+					      struct sk_buff *skb)
+{
+	struct wmi_service_ready_event *ev = (void *)skb->data;
+
+	if (skb->len < sizeof(*ev)) {
+		ath10k_warn("Service ready event was %d B but expected %zu B. Wrong firmware version?\n",
+			    skb->len, sizeof(*ev));
+		return;
+	}
+
+	ar->hw_min_tx_power = __le32_to_cpu(ev->hw_min_tx_power);
+	ar->hw_max_tx_power = __le32_to_cpu(ev->hw_max_tx_power);
+	ar->ht_cap_info = __le32_to_cpu(ev->ht_cap_info);
+	ar->vht_cap_info = __le32_to_cpu(ev->vht_cap_info);
+	ar->fw_version_major =
+		(__le32_to_cpu(ev->sw_version) & 0xff000000) >> 24;
+	ar->fw_version_minor = (__le32_to_cpu(ev->sw_version) & 0x00ffffff);
+	ar->fw_version_release =
+		(__le32_to_cpu(ev->sw_version_1) & 0xffff0000) >> 16;
+	ar->fw_version_build = (__le32_to_cpu(ev->sw_version_1) & 0x0000ffff);
+	ar->phy_capability = __le32_to_cpu(ev->phy_capability);
+
+	ar->ath_common.regulatory.current_rd =
+		__le32_to_cpu(ev->hal_reg_capabilities.eeprom_rd);
+
+	ath10k_debug_read_service_map(ar, ev->wmi_service_bitmap,
+				      sizeof(ev->wmi_service_bitmap));
+
+	if (strlen(ar->hw->wiphy->fw_version) == 0) {
+		snprintf(ar->hw->wiphy->fw_version,
+			 sizeof(ar->hw->wiphy->fw_version),
+			 "%u.%u.%u.%u",
+			 ar->fw_version_major,
+			 ar->fw_version_minor,
+			 ar->fw_version_release,
+			 ar->fw_version_build);
+	}
+
+	/* FIXME: it probably should be better to support this */
+	if (__le32_to_cpu(ev->num_mem_reqs) > 0) {
+		ath10k_warn("target requested %d memory chunks; ignoring\n",
+			    __le32_to_cpu(ev->num_mem_reqs));
+	}
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi event service ready sw_ver 0x%08x sw_ver1 0x%08x abi_ver %u phy_cap 0x%08x ht_cap 0x%08x vht_cap 0x%08x vht_supp_msc 0x%08x sys_cap_info 0x%08x mem_reqs %u\n",
+		   __le32_to_cpu(ev->sw_version),
+		   __le32_to_cpu(ev->sw_version_1),
+		   __le32_to_cpu(ev->abi_version),
+		   __le32_to_cpu(ev->phy_capability),
+		   __le32_to_cpu(ev->ht_cap_info),
+		   __le32_to_cpu(ev->vht_cap_info),
+		   __le32_to_cpu(ev->vht_supp_mcs),
+		   __le32_to_cpu(ev->sys_cap_info),
+		   __le32_to_cpu(ev->num_mem_reqs));
+
+	complete(&ar->wmi.service_ready);
+}
+
+static int ath10k_wmi_ready_event_rx(struct ath10k *ar, struct sk_buff *skb)
+{
+	struct wmi_ready_event *ev = (struct wmi_ready_event *)skb->data;
+
+	if (WARN_ON(skb->len < sizeof(*ev)))
+		return -EINVAL;
+
+	memcpy(ar->mac_addr, ev->mac_addr.addr, ETH_ALEN);
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi event ready sw_version %u abi_version %u mac_addr %pM status %d\n",
+		   __le32_to_cpu(ev->sw_version),
+		   __le32_to_cpu(ev->abi_version),
+		   ev->mac_addr.addr,
+		   __le32_to_cpu(ev->status));
+
+	complete(&ar->wmi.unified_ready);
+	return 0;
+}
+
+static void ath10k_wmi_event_process(struct ath10k *ar, struct sk_buff *skb)
+{
+	struct wmi_cmd_hdr *cmd_hdr;
+	enum wmi_event_id id;
+	u16 len;
+
+	cmd_hdr = (struct wmi_cmd_hdr *)skb->data;
+	id = MS(__le32_to_cpu(cmd_hdr->cmd_id), WMI_CMD_HDR_CMD_ID);
+
+	if (skb_pull(skb, sizeof(struct wmi_cmd_hdr)) == NULL)
+		return;
+
+	len = skb->len;
+
+	trace_ath10k_wmi_event(id, skb->data, skb->len);
+
+	switch (id) {
+	case WMI_MGMT_RX_EVENTID:
+		ath10k_wmi_event_mgmt_rx(ar, skb);
+		/* mgmt_rx() owns the skb now! */
+		return;
+	case WMI_SCAN_EVENTID:
+		ath10k_wmi_event_scan(ar, skb);
+		break;
+	case WMI_CHAN_INFO_EVENTID:
+		ath10k_wmi_event_chan_info(ar, skb);
+		break;
+	case WMI_ECHO_EVENTID:
+		ath10k_wmi_event_echo(ar, skb);
+		break;
+	case WMI_DEBUG_MESG_EVENTID:
+		ath10k_wmi_event_debug_mesg(ar, skb);
+		break;
+	case WMI_UPDATE_STATS_EVENTID:
+		ath10k_wmi_event_update_stats(ar, skb);
+		break;
+	case WMI_VDEV_START_RESP_EVENTID:
+		ath10k_wmi_event_vdev_start_resp(ar, skb);
+		break;
+	case WMI_VDEV_STOPPED_EVENTID:
+		ath10k_wmi_event_vdev_stopped(ar, skb);
+		break;
+	case WMI_PEER_STA_KICKOUT_EVENTID:
+		ath10k_wmi_event_peer_sta_kickout(ar, skb);
+		break;
+	case WMI_HOST_SWBA_EVENTID:
+		ath10k_wmi_event_host_swba(ar, skb);
+		break;
+	case WMI_TBTTOFFSET_UPDATE_EVENTID:
+		ath10k_wmi_event_tbttoffset_update(ar, skb);
+		break;
+	case WMI_PHYERR_EVENTID:
+		ath10k_wmi_event_phyerr(ar, skb);
+		break;
+	case WMI_ROAM_EVENTID:
+		ath10k_wmi_event_roam(ar, skb);
+		break;
+	case WMI_PROFILE_MATCH:
+		ath10k_wmi_event_profile_match(ar, skb);
+		break;
+	case WMI_DEBUG_PRINT_EVENTID:
+		ath10k_wmi_event_debug_print(ar, skb);
+		break;
+	case WMI_PDEV_QVIT_EVENTID:
+		ath10k_wmi_event_pdev_qvit(ar, skb);
+		break;
+	case WMI_WLAN_PROFILE_DATA_EVENTID:
+		ath10k_wmi_event_wlan_profile_data(ar, skb);
+		break;
+	case WMI_RTT_MEASUREMENT_REPORT_EVENTID:
+		ath10k_wmi_event_rtt_measurement_report(ar, skb);
+		break;
+	case WMI_TSF_MEASUREMENT_REPORT_EVENTID:
+		ath10k_wmi_event_tsf_measurement_report(ar, skb);
+		break;
+	case WMI_RTT_ERROR_REPORT_EVENTID:
+		ath10k_wmi_event_rtt_error_report(ar, skb);
+		break;
+	case WMI_WOW_WAKEUP_HOST_EVENTID:
+		ath10k_wmi_event_wow_wakeup_host(ar, skb);
+		break;
+	case WMI_DCS_INTERFERENCE_EVENTID:
+		ath10k_wmi_event_dcs_interference(ar, skb);
+		break;
+	case WMI_PDEV_TPC_CONFIG_EVENTID:
+		ath10k_wmi_event_pdev_tpc_config(ar, skb);
+		break;
+	case WMI_PDEV_FTM_INTG_EVENTID:
+		ath10k_wmi_event_pdev_ftm_intg(ar, skb);
+		break;
+	case WMI_GTK_OFFLOAD_STATUS_EVENTID:
+		ath10k_wmi_event_gtk_offload_status(ar, skb);
+		break;
+	case WMI_GTK_REKEY_FAIL_EVENTID:
+		ath10k_wmi_event_gtk_rekey_fail(ar, skb);
+		break;
+	case WMI_TX_DELBA_COMPLETE_EVENTID:
+		ath10k_wmi_event_delba_complete(ar, skb);
+		break;
+	case WMI_TX_ADDBA_COMPLETE_EVENTID:
+		ath10k_wmi_event_addba_complete(ar, skb);
+		break;
+	case WMI_VDEV_INSTALL_KEY_COMPLETE_EVENTID:
+		ath10k_wmi_event_vdev_install_key_complete(ar, skb);
+		break;
+	case WMI_SERVICE_READY_EVENTID:
+		ath10k_wmi_service_ready_event_rx(ar, skb);
+		break;
+	case WMI_READY_EVENTID:
+		ath10k_wmi_ready_event_rx(ar, skb);
+		break;
+	default:
+		ath10k_warn("Unknown eventid: %d\n", id);
+		break;
+	}
+
+	dev_kfree_skb(skb);
+}
+
+static void ath10k_wmi_event_work(struct work_struct *work)
+{
+	struct ath10k *ar = container_of(work, struct ath10k,
+					 wmi.wmi_event_work);
+	struct sk_buff *skb;
+
+	for (;;) {
+		skb = skb_dequeue(&ar->wmi.wmi_event_list);
+		if (!skb)
+			break;
+
+		ath10k_wmi_event_process(ar, skb);
+	}
+}
+
+static void ath10k_wmi_process_rx(struct ath10k *ar, struct sk_buff *skb)
+{
+	struct wmi_cmd_hdr *cmd_hdr = (struct wmi_cmd_hdr *)skb->data;
+	enum wmi_event_id event_id;
+
+	event_id = MS(__le32_to_cpu(cmd_hdr->cmd_id), WMI_CMD_HDR_CMD_ID);
+
+	/* some events require to be handled ASAP
+	 * thus can't be defered to a worker thread */
+	switch (event_id) {
+	case WMI_HOST_SWBA_EVENTID:
+	case WMI_MGMT_RX_EVENTID:
+		ath10k_wmi_event_process(ar, skb);
+		return;
+	default:
+		break;
+	}
+
+	skb_queue_tail(&ar->wmi.wmi_event_list, skb);
+	queue_work(ar->workqueue, &ar->wmi.wmi_event_work);
+}
+
+/* WMI Initialization functions */
+int ath10k_wmi_attach(struct ath10k *ar)
+{
+	init_completion(&ar->wmi.service_ready);
+	init_completion(&ar->wmi.unified_ready);
+	init_waitqueue_head(&ar->wmi.wq);
+
+	skb_queue_head_init(&ar->wmi.wmi_event_list);
+	INIT_WORK(&ar->wmi.wmi_event_work, ath10k_wmi_event_work);
+
+	return 0;
+}
+
+void ath10k_wmi_detach(struct ath10k *ar)
+{
+	/* HTC should've drained the packets already */
+	if (WARN_ON(atomic_read(&ar->wmi.pending_tx_count) > 0))
+		ath10k_warn("there are still pending packets\n");
+
+	cancel_work_sync(&ar->wmi.wmi_event_work);
+	skb_queue_purge(&ar->wmi.wmi_event_list);
+}
+
+int ath10k_wmi_connect_htc_service(struct ath10k *ar)
+{
+	int status;
+	struct ath10k_htc_svc_conn_req conn_req;
+	struct ath10k_htc_svc_conn_resp conn_resp;
+
+	memset(&conn_req, 0, sizeof(conn_req));
+	memset(&conn_resp, 0, sizeof(conn_resp));
+
+	/* these fields are the same for all service endpoints */
+	conn_req.ep_ops.ep_tx_complete = ath10k_wmi_htc_tx_complete;
+	conn_req.ep_ops.ep_rx_complete = ath10k_wmi_process_rx;
+
+	/* connect to control service */
+	conn_req.service_id = ATH10K_HTC_SVC_ID_WMI_CONTROL;
+
+	status = ath10k_htc_connect_service(ar->htc, &conn_req, &conn_resp);
+	if (status) {
+		ath10k_warn("failed to connect to WMI CONTROL service status: %d\n",
+			    status);
+		return status;
+	}
+
+	ar->wmi.eid = conn_resp.eid;
+	return 0;
+}
+
+int ath10k_wmi_pdev_set_regdomain(struct ath10k *ar, u16 rd, u16 rd2g,
+				  u16 rd5g, u16 ctl2g, u16 ctl5g)
+{
+	struct wmi_pdev_set_regdomain_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_pdev_set_regdomain_cmd *)skb->data;
+	cmd->reg_domain = __cpu_to_le32(rd);
+	cmd->reg_domain_2G = __cpu_to_le32(rd2g);
+	cmd->reg_domain_5G = __cpu_to_le32(rd5g);
+	cmd->conformance_test_limit_2G = __cpu_to_le32(ctl2g);
+	cmd->conformance_test_limit_5G = __cpu_to_le32(ctl5g);
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi pdev regdomain rd %x rd2g %x rd5g %x ctl2g %x ctl5g %x\n",
+		   rd, rd2g, rd5g, ctl2g, ctl5g);
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_PDEV_SET_REGDOMAIN_CMDID);
+}
+
+int ath10k_wmi_pdev_set_channel(struct ath10k *ar,
+				const struct wmi_channel_arg *arg)
+{
+	struct wmi_set_channel_cmd *cmd;
+	struct sk_buff *skb;
+
+	if (arg->passive)
+		return -EINVAL;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_set_channel_cmd *)skb->data;
+	cmd->chan.mhz               = __cpu_to_le32(arg->freq);
+	cmd->chan.band_center_freq1 = __cpu_to_le32(arg->freq);
+	cmd->chan.mode              = arg->mode;
+	cmd->chan.min_power         = arg->min_power;
+	cmd->chan.max_power         = arg->max_power;
+	cmd->chan.reg_power         = arg->max_reg_power;
+	cmd->chan.reg_classid       = arg->reg_class_id;
+	cmd->chan.antenna_max       = arg->max_antenna_gain;
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi set channel mode %d freq %d\n",
+		   arg->mode, arg->freq);
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_PDEV_SET_CHANNEL_CMDID);
+}
+
+int ath10k_wmi_pdev_suspend_target(struct ath10k *ar)
+{
+	struct wmi_pdev_suspend_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_pdev_suspend_cmd *)skb->data;
+	cmd->suspend_opt = WMI_PDEV_SUSPEND;
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_PDEV_SUSPEND_CMDID);
+}
+
+int ath10k_wmi_pdev_resume_target(struct ath10k *ar)
+{
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(0);
+	if (skb == NULL)
+		return -ENOMEM;
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_PDEV_RESUME_CMDID);
+}
+
+int ath10k_wmi_pdev_set_param(struct ath10k *ar, enum wmi_pdev_param id,
+			      u32 value)
+{
+	struct wmi_pdev_set_param_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_pdev_set_param_cmd *)skb->data;
+	cmd->param_id    = __cpu_to_le32(id);
+	cmd->param_value = __cpu_to_le32(value);
+
+	ath10k_dbg(ATH10K_DBG_WMI, "wmi pdev set param %d value %d\n",
+		   id, value);
+	return ath10k_wmi_cmd_send(ar, skb, WMI_PDEV_SET_PARAM_CMDID);
+}
+
+int ath10k_wmi_cmd_init(struct ath10k *ar)
+{
+	struct wmi_init_cmd *cmd;
+	struct sk_buff *buf;
+	struct wmi_resource_config config = {};
+	u32 val;
+
+	config.num_vdevs = __cpu_to_le32(TARGET_NUM_VDEVS);
+	config.num_peers = __cpu_to_le32(TARGET_NUM_PEERS + TARGET_NUM_VDEVS);
+	config.num_offload_peers = __cpu_to_le32(TARGET_NUM_OFFLOAD_PEERS);
+
+	config.num_offload_reorder_bufs =
+		__cpu_to_le32(TARGET_NUM_OFFLOAD_REORDER_BUFS);
+
+	config.num_peer_keys = __cpu_to_le32(TARGET_NUM_PEER_KEYS);
+	config.num_tids = __cpu_to_le32(TARGET_NUM_TIDS);
+	config.ast_skid_limit = __cpu_to_le32(TARGET_AST_SKID_LIMIT);
+	config.tx_chain_mask = __cpu_to_le32(TARGET_TX_CHAIN_MASK);
+	config.rx_chain_mask = __cpu_to_le32(TARGET_RX_CHAIN_MASK);
+	config.rx_timeout_pri_vo = __cpu_to_le32(TARGET_RX_TIMEOUT_LO_PRI);
+	config.rx_timeout_pri_vi = __cpu_to_le32(TARGET_RX_TIMEOUT_LO_PRI);
+	config.rx_timeout_pri_be = __cpu_to_le32(TARGET_RX_TIMEOUT_LO_PRI);
+	config.rx_timeout_pri_bk = __cpu_to_le32(TARGET_RX_TIMEOUT_HI_PRI);
+	config.rx_decap_mode = __cpu_to_le32(TARGET_RX_DECAP_MODE);
+
+	config.scan_max_pending_reqs =
+		__cpu_to_le32(TARGET_SCAN_MAX_PENDING_REQS);
+
+	config.bmiss_offload_max_vdev =
+		__cpu_to_le32(TARGET_BMISS_OFFLOAD_MAX_VDEV);
+
+	config.roam_offload_max_vdev =
+		__cpu_to_le32(TARGET_ROAM_OFFLOAD_MAX_VDEV);
+
+	config.roam_offload_max_ap_profiles =
+		__cpu_to_le32(TARGET_ROAM_OFFLOAD_MAX_AP_PROFILES);
+
+	config.num_mcast_groups = __cpu_to_le32(TARGET_NUM_MCAST_GROUPS);
+	config.num_mcast_table_elems =
+		__cpu_to_le32(TARGET_NUM_MCAST_TABLE_ELEMS);
+
+	config.mcast2ucast_mode = __cpu_to_le32(TARGET_MCAST2UCAST_MODE);
+	config.tx_dbg_log_size = __cpu_to_le32(TARGET_TX_DBG_LOG_SIZE);
+	config.num_wds_entries = __cpu_to_le32(TARGET_NUM_WDS_ENTRIES);
+	config.dma_burst_size = __cpu_to_le32(TARGET_DMA_BURST_SIZE);
+	config.mac_aggr_delim = __cpu_to_le32(TARGET_MAC_AGGR_DELIM);
+
+	val = TARGET_RX_SKIP_DEFRAG_TIMEOUT_DUP_DETECTION_CHECK;
+	config.rx_skip_defrag_timeout_dup_detection_check = __cpu_to_le32(val);
+
+	config.vow_config = __cpu_to_le32(TARGET_VOW_CONFIG);
+
+	config.gtk_offload_max_vdev =
+		__cpu_to_le32(TARGET_GTK_OFFLOAD_MAX_VDEV);
+
+	config.num_msdu_desc = __cpu_to_le32(TARGET_NUM_MSDU_DESC);
+	config.max_frag_entries = __cpu_to_le32(TARGET_MAX_FRAG_ENTRIES);
+
+	buf = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!buf)
+		return -ENOMEM;
+
+	cmd = (struct wmi_init_cmd *)buf->data;
+	cmd->num_host_mem_chunks = 0;
+	memcpy(&cmd->resource_config, &config, sizeof(config));
+
+	ath10k_dbg(ATH10K_DBG_WMI, "wmi init\n");
+	return ath10k_wmi_cmd_send(ar, buf, WMI_INIT_CMDID);
+}
+
+static int ath10k_wmi_start_scan_calc_len(const struct wmi_start_scan_arg *arg)
+{
+	int len;
+
+	len = sizeof(struct wmi_start_scan_cmd);
+
+	if (arg->ie_len) {
+		if (!arg->ie)
+			return -EINVAL;
+		if (arg->ie_len > WLAN_SCAN_PARAMS_MAX_IE_LEN)
+			return -EINVAL;
+
+		len += sizeof(struct wmi_ie_data);
+		len += roundup(arg->ie_len, 4);
+	}
+
+	if (arg->n_channels) {
+		if (!arg->channels)
+			return -EINVAL;
+		if (arg->n_channels > ARRAY_SIZE(arg->channels))
+			return -EINVAL;
+
+		len += sizeof(struct wmi_chan_list);
+		len += sizeof(__le32) * arg->n_channels;
+	}
+
+	if (arg->n_ssids) {
+		if (!arg->ssids)
+			return -EINVAL;
+		if (arg->n_ssids > WLAN_SCAN_PARAMS_MAX_SSID)
+			return -EINVAL;
+
+		len += sizeof(struct wmi_ssid_list);
+		len += sizeof(struct wmi_ssid) * arg->n_ssids;
+	}
+
+	if (arg->n_bssids) {
+		if (!arg->bssids)
+			return -EINVAL;
+		if (arg->n_bssids > WLAN_SCAN_PARAMS_MAX_BSSID)
+			return -EINVAL;
+
+		len += sizeof(struct wmi_bssid_list);
+		len += sizeof(struct wmi_mac_addr) * arg->n_bssids;
+	}
+
+	return len;
+}
+
+int ath10k_wmi_start_scan(struct ath10k *ar,
+			  const struct wmi_start_scan_arg *arg)
+{
+	struct wmi_start_scan_cmd *cmd;
+	struct sk_buff *skb;
+	struct wmi_ie_data *ie;
+	struct wmi_chan_list *channels;
+	struct wmi_ssid_list *ssids;
+	struct wmi_bssid_list *bssids;
+	u32 scan_id;
+	u32 scan_req_id;
+	int off;
+	int len = 0;
+	int i;
+
+	len = ath10k_wmi_start_scan_calc_len(arg);
+	if (len < 0)
+		return len; /* len contains error code here */
+
+	skb = ath10k_wmi_alloc_skb(len);
+	if (!skb)
+		return -ENOMEM;
+
+	scan_id  = WMI_HOST_SCAN_REQ_ID_PREFIX;
+	scan_id |= arg->scan_id;
+
+	scan_req_id  = WMI_HOST_SCAN_REQUESTOR_ID_PREFIX;
+	scan_req_id |= arg->scan_req_id;
+
+	cmd = (struct wmi_start_scan_cmd *)skb->data;
+	cmd->scan_id            = __cpu_to_le32(scan_id);
+	cmd->scan_req_id        = __cpu_to_le32(scan_req_id);
+	cmd->vdev_id            = __cpu_to_le32(arg->vdev_id);
+	cmd->scan_priority      = __cpu_to_le32(arg->scan_priority);
+	cmd->notify_scan_events = __cpu_to_le32(arg->notify_scan_events);
+	cmd->dwell_time_active  = __cpu_to_le32(arg->dwell_time_active);
+	cmd->dwell_time_passive = __cpu_to_le32(arg->dwell_time_passive);
+	cmd->min_rest_time      = __cpu_to_le32(arg->min_rest_time);
+	cmd->max_rest_time      = __cpu_to_le32(arg->max_rest_time);
+	cmd->repeat_probe_time  = __cpu_to_le32(arg->repeat_probe_time);
+	cmd->probe_spacing_time = __cpu_to_le32(arg->probe_spacing_time);
+	cmd->idle_time          = __cpu_to_le32(arg->idle_time);
+	cmd->max_scan_time      = __cpu_to_le32(arg->max_scan_time);
+	cmd->probe_delay        = __cpu_to_le32(arg->probe_delay);
+	cmd->scan_ctrl_flags    = __cpu_to_le32(arg->scan_ctrl_flags);
+
+	/* TLV list starts after fields included in the struct */
+	off = sizeof(*cmd);
+
+	if (arg->n_channels) {
+		channels = (void *)skb->data + off;
+		channels->tag = __cpu_to_le32(WMI_CHAN_LIST_TAG);
+		channels->num_chan = __cpu_to_le32(arg->n_channels);
+
+		for (i = 0; i < arg->n_channels; i++)
+			channels->channel_list[i] =
+				__cpu_to_le32(arg->channels[i]);
+
+		off += sizeof(*channels);
+		off += sizeof(__le32) * arg->n_channels;
+	}
+
+	if (arg->n_ssids) {
+		ssids = (void *)skb->data + off;
+		ssids->tag = __cpu_to_le32(WMI_SSID_LIST_TAG);
+		ssids->num_ssids = __cpu_to_le32(arg->n_ssids);
+
+		for (i = 0; i < arg->n_ssids; i++) {
+			ssids->ssids[i].ssid_len =
+				__cpu_to_le32(arg->ssids[i].len);
+			memcpy(&ssids->ssids[i].ssid,
+			       arg->ssids[i].ssid,
+			       arg->ssids[i].len);
+		}
+
+		off += sizeof(*ssids);
+		off += sizeof(struct wmi_ssid) * arg->n_ssids;
+	}
+
+	if (arg->n_bssids) {
+		bssids = (void *)skb->data + off;
+		bssids->tag = __cpu_to_le32(WMI_BSSID_LIST_TAG);
+		bssids->num_bssid = __cpu_to_le32(arg->n_bssids);
+
+		for (i = 0; i < arg->n_bssids; i++)
+			memcpy(&bssids->bssid_list[i],
+			       arg->bssids[i].bssid,
+			       ETH_ALEN);
+
+		off += sizeof(*bssids);
+		off += sizeof(struct wmi_mac_addr) * arg->n_bssids;
+	}
+
+	if (arg->ie_len) {
+		ie = (void *)skb->data + off;
+		ie->tag = __cpu_to_le32(WMI_IE_TAG);
+		ie->ie_len = __cpu_to_le32(arg->ie_len);
+		memcpy(ie->ie_data, arg->ie, arg->ie_len);
+
+		off += sizeof(*ie);
+		off += roundup(arg->ie_len, 4);
+	}
+
+	if (off != skb->len) {
+		dev_kfree_skb(skb);
+		return -EINVAL;
+	}
+
+	ath10k_dbg(ATH10K_DBG_WMI, "wmi start scan\n");
+	return ath10k_wmi_cmd_send(ar, skb, WMI_START_SCAN_CMDID);
+}
+
+void ath10k_wmi_start_scan_init(struct ath10k *ar,
+				struct wmi_start_scan_arg *arg)
+{
+	/* setup commonly used values */
+	arg->scan_req_id = 1;
+	arg->scan_priority = WMI_SCAN_PRIORITY_LOW;
+	arg->dwell_time_active = 50;
+	arg->dwell_time_passive = 150;
+	arg->min_rest_time = 50;
+	arg->max_rest_time = 500;
+	arg->repeat_probe_time = 0;
+	arg->probe_spacing_time = 0;
+	arg->idle_time = 0;
+	arg->max_scan_time = 5000;
+	arg->probe_delay = 5;
+	arg->notify_scan_events = WMI_SCAN_EVENT_STARTED
+		| WMI_SCAN_EVENT_COMPLETED
+		| WMI_SCAN_EVENT_BSS_CHANNEL
+		| WMI_SCAN_EVENT_FOREIGN_CHANNEL
+		| WMI_SCAN_EVENT_DEQUEUED;
+	arg->scan_ctrl_flags |= WMI_SCAN_ADD_OFDM_RATES;
+	arg->scan_ctrl_flags |= WMI_SCAN_CHAN_STAT_EVENT;
+	arg->n_bssids = 1;
+	arg->bssids[0].bssid = "\xFF\xFF\xFF\xFF\xFF\xFF";
+}
+
+int ath10k_wmi_stop_scan(struct ath10k *ar, const struct wmi_stop_scan_arg *arg)
+{
+	struct wmi_stop_scan_cmd *cmd;
+	struct sk_buff *skb;
+	u32 scan_id;
+	u32 req_id;
+
+	if (arg->req_id > 0xFFF)
+		return -EINVAL;
+	if (arg->req_type == WMI_SCAN_STOP_ONE && arg->u.scan_id > 0xFFF)
+		return -EINVAL;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	scan_id = arg->u.scan_id;
+	scan_id |= WMI_HOST_SCAN_REQ_ID_PREFIX;
+
+	req_id = arg->req_id;
+	req_id |= WMI_HOST_SCAN_REQUESTOR_ID_PREFIX;
+
+	cmd = (struct wmi_stop_scan_cmd *)skb->data;
+	cmd->req_type    = __cpu_to_le32(arg->req_type);
+	cmd->vdev_id     = __cpu_to_le32(arg->u.vdev_id);
+	cmd->scan_id     = __cpu_to_le32(scan_id);
+	cmd->scan_req_id = __cpu_to_le32(req_id);
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi stop scan reqid %d req_type %d vdev/scan_id %d\n",
+		   arg->req_id, arg->req_type, arg->u.scan_id);
+	return ath10k_wmi_cmd_send(ar, skb, WMI_STOP_SCAN_CMDID);
+}
+
+int ath10k_wmi_vdev_create(struct ath10k *ar, u32 vdev_id,
+			   enum wmi_vdev_type type,
+			   enum wmi_vdev_subtype subtype,
+			   const u8 macaddr[ETH_ALEN])
+{
+	struct wmi_vdev_create_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_vdev_create_cmd *)skb->data;
+	cmd->vdev_id      = __cpu_to_le32(vdev_id);
+	cmd->vdev_type    = __cpu_to_le32(type);
+	cmd->vdev_subtype = __cpu_to_le32(subtype);
+	memcpy(cmd->vdev_macaddr.addr, macaddr, ETH_ALEN);
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "WMI vdev create: id %d type %d subtype %d macaddr %pM\n",
+		   vdev_id, type, subtype, macaddr);
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_VDEV_CREATE_CMDID);
+}
+
+int ath10k_wmi_vdev_delete(struct ath10k *ar, u32 vdev_id)
+{
+	struct wmi_vdev_delete_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_vdev_delete_cmd *)skb->data;
+	cmd->vdev_id = __cpu_to_le32(vdev_id);
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "WMI vdev delete id %d\n", vdev_id);
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_VDEV_DELETE_CMDID);
+}
+
+static int ath10k_wmi_vdev_start_restart(struct ath10k *ar,
+				const struct wmi_vdev_start_request_arg *arg,
+				enum wmi_cmd_id cmd_id)
+{
+	struct wmi_vdev_start_request_cmd *cmd;
+	struct sk_buff *skb;
+	const char *cmdname;
+	u32 flags = 0;
+
+	if (cmd_id != WMI_VDEV_START_REQUEST_CMDID &&
+	    cmd_id != WMI_VDEV_RESTART_REQUEST_CMDID)
+		return -EINVAL;
+	if (WARN_ON(arg->ssid && arg->ssid_len == 0))
+		return -EINVAL;
+	if (WARN_ON(arg->hidden_ssid && !arg->ssid))
+		return -EINVAL;
+	if (WARN_ON(arg->ssid_len > sizeof(cmd->ssid.ssid)))
+		return -EINVAL;
+
+	if (cmd_id == WMI_VDEV_START_REQUEST_CMDID)
+		cmdname = "start";
+	else if (cmd_id == WMI_VDEV_RESTART_REQUEST_CMDID)
+		cmdname = "restart";
+	else
+		return -EINVAL; /* should not happen, we already check cmd_id */
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	if (arg->hidden_ssid)
+		flags |= WMI_VDEV_START_HIDDEN_SSID;
+	if (arg->pmf_enabled)
+		flags |= WMI_VDEV_START_PMF_ENABLED;
+
+	cmd = (struct wmi_vdev_start_request_cmd *)skb->data;
+	cmd->vdev_id         = __cpu_to_le32(arg->vdev_id);
+	cmd->disable_hw_ack  = __cpu_to_le32(arg->disable_hw_ack);
+	cmd->beacon_interval = __cpu_to_le32(arg->bcn_intval);
+	cmd->dtim_period     = __cpu_to_le32(arg->dtim_period);
+	cmd->flags           = __cpu_to_le32(flags);
+	cmd->bcn_tx_rate     = __cpu_to_le32(arg->bcn_tx_rate);
+	cmd->bcn_tx_power    = __cpu_to_le32(arg->bcn_tx_power);
+
+	if (arg->ssid) {
+		cmd->ssid.ssid_len = __cpu_to_le32(arg->ssid_len);
+		memcpy(cmd->ssid.ssid, arg->ssid, arg->ssid_len);
+	}
+
+	cmd->chan.mhz = __cpu_to_le32(arg->channel.freq);
+
+	cmd->chan.band_center_freq1 =
+		__cpu_to_le32(arg->channel.band_center_freq1);
+
+	cmd->chan.mode = arg->channel.mode;
+	cmd->chan.min_power = arg->channel.min_power;
+	cmd->chan.max_power = arg->channel.max_power;
+	cmd->chan.reg_power = arg->channel.max_reg_power;
+	cmd->chan.reg_classid = arg->channel.reg_class_id;
+	cmd->chan.antenna_max = arg->channel.max_antenna_gain;
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi vdev %s id 0x%x freq %d, mode %d, ch_flags: 0x%0X,"
+		   "max_power: %d\n", cmdname, arg->vdev_id, arg->channel.freq,
+		   arg->channel.mode, flags, arg->channel.max_power);
+
+	return ath10k_wmi_cmd_send(ar, skb, cmd_id);
+}
+
+int ath10k_wmi_vdev_start(struct ath10k *ar,
+			  const struct wmi_vdev_start_request_arg *arg)
+{
+	return ath10k_wmi_vdev_start_restart(ar, arg,
+					     WMI_VDEV_START_REQUEST_CMDID);
+}
+
+int ath10k_wmi_vdev_restart(struct ath10k *ar,
+		     const struct wmi_vdev_start_request_arg *arg)
+{
+	return ath10k_wmi_vdev_start_restart(ar, arg,
+					     WMI_VDEV_RESTART_REQUEST_CMDID);
+}
+
+int ath10k_wmi_vdev_stop(struct ath10k *ar, u32 vdev_id)
+{
+	struct wmi_vdev_stop_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_vdev_stop_cmd *)skb->data;
+	cmd->vdev_id = __cpu_to_le32(vdev_id);
+
+	ath10k_dbg(ATH10K_DBG_WMI, "wmi vdev stop id 0x%x\n", vdev_id);
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_VDEV_STOP_CMDID);
+}
+
+int ath10k_wmi_vdev_up(struct ath10k *ar, u32 vdev_id, u32 aid, const u8 *bssid)
+{
+	struct wmi_vdev_up_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_vdev_up_cmd *)skb->data;
+	cmd->vdev_id       = __cpu_to_le32(vdev_id);
+	cmd->vdev_assoc_id = __cpu_to_le32(aid);
+	memcpy(&cmd->vdev_bssid.addr, bssid, 6);
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi mgmt vdev up id 0x%x assoc id %d bssid %pM\n",
+		   vdev_id, aid, bssid);
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_VDEV_UP_CMDID);
+}
+
+int ath10k_wmi_vdev_down(struct ath10k *ar, u32 vdev_id)
+{
+	struct wmi_vdev_down_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_vdev_down_cmd *)skb->data;
+	cmd->vdev_id = __cpu_to_le32(vdev_id);
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi mgmt vdev down id 0x%x\n", vdev_id);
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_VDEV_DOWN_CMDID);
+}
+
+int ath10k_wmi_vdev_set_param(struct ath10k *ar, u32 vdev_id,
+			      enum wmi_vdev_param param_id, u32 param_value)
+{
+	struct wmi_vdev_set_param_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_vdev_set_param_cmd *)skb->data;
+	cmd->vdev_id     = __cpu_to_le32(vdev_id);
+	cmd->param_id    = __cpu_to_le32(param_id);
+	cmd->param_value = __cpu_to_le32(param_value);
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi vdev id 0x%x set param %d value %d\n",
+		   vdev_id, param_id, param_value);
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_VDEV_SET_PARAM_CMDID);
+}
+
+int ath10k_wmi_vdev_install_key(struct ath10k *ar,
+				const struct wmi_vdev_install_key_arg *arg)
+{
+	struct wmi_vdev_install_key_cmd *cmd;
+	struct sk_buff *skb;
+
+	if (arg->key_cipher == WMI_CIPHER_NONE && arg->key_data != NULL)
+		return -EINVAL;
+	if (arg->key_cipher != WMI_CIPHER_NONE && arg->key_data == NULL)
+		return -EINVAL;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd) + arg->key_len);
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_vdev_install_key_cmd *)skb->data;
+	cmd->vdev_id       = __cpu_to_le32(arg->vdev_id);
+	cmd->key_idx       = __cpu_to_le32(arg->key_idx);
+	cmd->key_flags     = __cpu_to_le32(arg->key_flags);
+	cmd->key_cipher    = __cpu_to_le32(arg->key_cipher);
+	cmd->key_len       = __cpu_to_le32(arg->key_len);
+	cmd->key_txmic_len = __cpu_to_le32(arg->key_txmic_len);
+	cmd->key_rxmic_len = __cpu_to_le32(arg->key_rxmic_len);
+
+	if (arg->macaddr)
+		memcpy(cmd->peer_macaddr.addr, arg->macaddr, ETH_ALEN);
+	if (arg->key_data)
+		memcpy(cmd->key_data, arg->key_data, arg->key_len);
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_VDEV_INSTALL_KEY_CMDID);
+}
+
+int ath10k_wmi_peer_create(struct ath10k *ar, u32 vdev_id,
+			   const u8 peer_addr[ETH_ALEN])
+{
+	struct wmi_peer_create_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_peer_create_cmd *)skb->data;
+	cmd->vdev_id = __cpu_to_le32(vdev_id);
+	memcpy(cmd->peer_macaddr.addr, peer_addr, ETH_ALEN);
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi peer create vdev_id %d peer_addr %pM\n",
+		   vdev_id, peer_addr);
+	return ath10k_wmi_cmd_send(ar, skb, WMI_PEER_CREATE_CMDID);
+}
+
+int ath10k_wmi_peer_delete(struct ath10k *ar, u32 vdev_id,
+			   const u8 peer_addr[ETH_ALEN])
+{
+	struct wmi_peer_delete_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_peer_delete_cmd *)skb->data;
+	cmd->vdev_id = __cpu_to_le32(vdev_id);
+	memcpy(cmd->peer_macaddr.addr, peer_addr, ETH_ALEN);
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi peer delete vdev_id %d peer_addr %pM\n",
+		   vdev_id, peer_addr);
+	return ath10k_wmi_cmd_send(ar, skb, WMI_PEER_DELETE_CMDID);
+}
+
+int ath10k_wmi_peer_flush(struct ath10k *ar, u32 vdev_id,
+			  const u8 peer_addr[ETH_ALEN], u32 tid_bitmap)
+{
+	struct wmi_peer_flush_tids_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_peer_flush_tids_cmd *)skb->data;
+	cmd->vdev_id         = __cpu_to_le32(vdev_id);
+	cmd->peer_tid_bitmap = __cpu_to_le32(tid_bitmap);
+	memcpy(cmd->peer_macaddr.addr, peer_addr, ETH_ALEN);
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi peer flush vdev_id %d peer_addr %pM tids %08x\n",
+		   vdev_id, peer_addr, tid_bitmap);
+	return ath10k_wmi_cmd_send(ar, skb, WMI_PEER_FLUSH_TIDS_CMDID);
+}
+
+int ath10k_wmi_peer_set_param(struct ath10k *ar, u32 vdev_id,
+			      const u8 *peer_addr, enum wmi_peer_param param_id,
+			      u32 param_value)
+{
+	struct wmi_peer_set_param_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_peer_set_param_cmd *)skb->data;
+	cmd->vdev_id     = __cpu_to_le32(vdev_id);
+	cmd->param_id    = __cpu_to_le32(param_id);
+	cmd->param_value = __cpu_to_le32(param_value);
+	memcpy(&cmd->peer_macaddr.addr, peer_addr, 6);
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi vdev %d peer 0x%pM set param %d value %d\n",
+		   vdev_id, peer_addr, param_id, param_value);
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_PEER_SET_PARAM_CMDID);
+}
+
+int ath10k_wmi_set_psmode(struct ath10k *ar, u32 vdev_id,
+			  enum wmi_sta_ps_mode psmode)
+{
+	struct wmi_sta_powersave_mode_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_sta_powersave_mode_cmd *)skb->data;
+	cmd->vdev_id     = __cpu_to_le32(vdev_id);
+	cmd->sta_ps_mode = __cpu_to_le32(psmode);
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi set powersave id 0x%x mode %d\n",
+		   vdev_id, psmode);
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_STA_POWERSAVE_MODE_CMDID);
+}
+
+int ath10k_wmi_set_sta_ps_param(struct ath10k *ar, u32 vdev_id,
+				enum wmi_sta_powersave_param param_id,
+				u32 value)
+{
+	struct wmi_sta_powersave_param_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_sta_powersave_param_cmd *)skb->data;
+	cmd->vdev_id     = __cpu_to_le32(vdev_id);
+	cmd->param_id    = __cpu_to_le32(param_id);
+	cmd->param_value = __cpu_to_le32(value);
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi sta ps param vdev_id 0x%x param %d value %d\n",
+		   vdev_id, param_id, value);
+	return ath10k_wmi_cmd_send(ar, skb, WMI_STA_POWERSAVE_PARAM_CMDID);
+}
+
+int ath10k_wmi_set_ap_ps_param(struct ath10k *ar, u32 vdev_id, const u8 *mac,
+			       enum wmi_ap_ps_peer_param param_id, u32 value)
+{
+	struct wmi_ap_ps_peer_cmd *cmd;
+	struct sk_buff *skb;
+
+	if (!mac)
+		return -EINVAL;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_ap_ps_peer_cmd *)skb->data;
+	cmd->vdev_id = __cpu_to_le32(vdev_id);
+	cmd->param_id = __cpu_to_le32(param_id);
+	cmd->param_value = __cpu_to_le32(value);
+	memcpy(&cmd->peer_macaddr, mac, ETH_ALEN);
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi ap ps param vdev_id 0x%X param %d value %d mac_addr %pM\n",
+		   vdev_id, param_id, value, mac);
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_AP_PS_PEER_PARAM_CMDID);
+}
+
+int ath10k_wmi_scan_chan_list(struct ath10k *ar,
+			      const struct wmi_scan_chan_list_arg *arg)
+{
+	struct wmi_scan_chan_list_cmd *cmd;
+	struct sk_buff *skb;
+	struct wmi_channel_arg *ch;
+	struct wmi_channel *ci;
+	int len;
+	int i;
+
+	len = sizeof(*cmd) + arg->n_channels * sizeof(struct wmi_channel);
+
+	skb = ath10k_wmi_alloc_skb(len);
+	if (!skb)
+		return -EINVAL;
+
+	cmd = (struct wmi_scan_chan_list_cmd *)skb->data;
+	cmd->num_scan_chans = __cpu_to_le32(arg->n_channels);
+
+	for (i = 0; i < arg->n_channels; i++) {
+		u32 flags = 0;
+
+		ch = &arg->channels[i];
+		ci = &cmd->chan_info[i];
+
+		if (ch->passive)
+			flags |= WMI_CHAN_FLAG_PASSIVE;
+		if (ch->allow_ibss)
+			flags |= WMI_CHAN_FLAG_ADHOC_ALLOWED;
+		if (ch->allow_ht)
+			flags |= WMI_CHAN_FLAG_ALLOW_HT;
+		if (ch->allow_vht)
+			flags |= WMI_CHAN_FLAG_ALLOW_VHT;
+		if (ch->ht40plus)
+			flags |= WMI_CHAN_FLAG_HT40_PLUS;
+
+		ci->mhz               = __cpu_to_le32(ch->freq);
+		ci->band_center_freq1 = __cpu_to_le32(ch->freq);
+		ci->band_center_freq2 = 0;
+		ci->min_power         = ch->min_power;
+		ci->max_power         = ch->max_power;
+		ci->reg_power         = ch->max_reg_power;
+		ci->antenna_max       = ch->max_antenna_gain;
+		ci->antenna_max       = 0;
+
+		/* mode & flags share storage */
+		ci->mode              = ch->mode;
+		ci->flags            |= __cpu_to_le32(flags);
+	}
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_SCAN_CHAN_LIST_CMDID);
+}
+
+int ath10k_wmi_peer_assoc(struct ath10k *ar,
+			  const struct wmi_peer_assoc_complete_arg *arg)
+{
+	struct wmi_peer_assoc_complete_cmd *cmd;
+	struct sk_buff *skb;
+
+	if (arg->peer_mpdu_density > 16)
+		return -EINVAL;
+	if (arg->peer_legacy_rates.num_rates > MAX_SUPPORTED_RATES)
+		return -EINVAL;
+	if (arg->peer_ht_rates.num_rates > MAX_SUPPORTED_RATES)
+		return -EINVAL;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_peer_assoc_complete_cmd *)skb->data;
+	cmd->vdev_id            = __cpu_to_le32(arg->vdev_id);
+	cmd->peer_new_assoc     = __cpu_to_le32(arg->peer_reassoc ? 0 : 1);
+	cmd->peer_associd       = __cpu_to_le32(arg->peer_aid);
+	cmd->peer_flags         = __cpu_to_le32(arg->peer_flags);
+	cmd->peer_caps          = __cpu_to_le32(arg->peer_caps);
+	cmd->peer_listen_intval = __cpu_to_le32(arg->peer_listen_intval);
+	cmd->peer_ht_caps       = __cpu_to_le32(arg->peer_ht_caps);
+	cmd->peer_max_mpdu      = __cpu_to_le32(arg->peer_max_mpdu);
+	cmd->peer_mpdu_density  = __cpu_to_le32(arg->peer_mpdu_density);
+	cmd->peer_rate_caps     = __cpu_to_le32(arg->peer_rate_caps);
+	cmd->peer_nss           = __cpu_to_le32(arg->peer_num_spatial_streams);
+	cmd->peer_vht_caps      = __cpu_to_le32(arg->peer_vht_caps);
+	cmd->peer_phymode       = __cpu_to_le32(arg->peer_phymode);
+
+	memcpy(cmd->peer_macaddr.addr, arg->addr, ETH_ALEN);
+
+	cmd->peer_legacy_rates.num_rates =
+		__cpu_to_le32(arg->peer_legacy_rates.num_rates);
+	memcpy(cmd->peer_legacy_rates.rates, arg->peer_legacy_rates.rates,
+	       arg->peer_legacy_rates.num_rates);
+
+	cmd->peer_ht_rates.num_rates =
+		__cpu_to_le32(arg->peer_ht_rates.num_rates);
+	memcpy(cmd->peer_ht_rates.rates, arg->peer_ht_rates.rates,
+	       arg->peer_ht_rates.num_rates);
+
+	cmd->peer_vht_rates.rx_max_rate =
+		__cpu_to_le32(arg->peer_vht_rates.rx_max_rate);
+	cmd->peer_vht_rates.rx_mcs_set =
+		__cpu_to_le32(arg->peer_vht_rates.rx_mcs_set);
+	cmd->peer_vht_rates.tx_max_rate =
+		__cpu_to_le32(arg->peer_vht_rates.tx_max_rate);
+	cmd->peer_vht_rates.tx_mcs_set =
+		__cpu_to_le32(arg->peer_vht_rates.tx_mcs_set);
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_PEER_ASSOC_CMDID);
+}
+
+int ath10k_wmi_beacon_send(struct ath10k *ar, const struct wmi_bcn_tx_arg *arg)
+{
+	struct wmi_bcn_tx_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd) + arg->bcn_len);
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_bcn_tx_cmd *)skb->data;
+	cmd->hdr.vdev_id  = __cpu_to_le32(arg->vdev_id);
+	cmd->hdr.tx_rate  = __cpu_to_le32(arg->tx_rate);
+	cmd->hdr.tx_power = __cpu_to_le32(arg->tx_power);
+	cmd->hdr.bcn_len  = __cpu_to_le32(arg->bcn_len);
+	memcpy(cmd->bcn, arg->bcn, arg->bcn_len);
+
+	return ath10k_wmi_cmd_send(ar, skb, WMI_BCN_TX_CMDID);
+}
+
+static void ath10k_wmi_pdev_set_wmm_param(struct wmi_wmm_params *params,
+					  const struct wmi_wmm_params_arg *arg)
+{
+	params->cwmin  = __cpu_to_le32(arg->cwmin);
+	params->cwmax  = __cpu_to_le32(arg->cwmax);
+	params->aifs   = __cpu_to_le32(arg->aifs);
+	params->txop   = __cpu_to_le32(arg->txop);
+	params->acm    = __cpu_to_le32(arg->acm);
+	params->no_ack = __cpu_to_le32(arg->no_ack);
+}
+
+int ath10k_wmi_pdev_set_wmm_params(struct ath10k *ar,
+			const struct wmi_pdev_set_wmm_params_arg *arg)
+{
+	struct wmi_pdev_set_wmm_params *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_pdev_set_wmm_params *)skb->data;
+	ath10k_wmi_pdev_set_wmm_param(&cmd->ac_be, &arg->ac_be);
+	ath10k_wmi_pdev_set_wmm_param(&cmd->ac_bk, &arg->ac_bk);
+	ath10k_wmi_pdev_set_wmm_param(&cmd->ac_vi, &arg->ac_vi);
+	ath10k_wmi_pdev_set_wmm_param(&cmd->ac_vo, &arg->ac_vo);
+
+	ath10k_dbg(ATH10K_DBG_WMI, "wmi pdev set wmm params\n");
+	return ath10k_wmi_cmd_send(ar, skb, WMI_PDEV_SET_WMM_PARAMS_CMDID);
+}
+
+int ath10k_wmi_request_stats(struct ath10k *ar, enum wmi_stats_id stats_id)
+{
+	struct wmi_request_stats_cmd *cmd;
+	struct sk_buff *skb;
+
+	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	if (!skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_request_stats_cmd *)skb->data;
+	cmd->stats_id = __cpu_to_le32(stats_id);
+
+	ath10k_dbg(ATH10K_DBG_WMI, "wmi request stats %d\n", (int)stats_id);
+	return ath10k_wmi_cmd_send(ar, skb, WMI_REQUEST_STATS_CMDID);
+}

drivers/net/wireless/ath/ath10k/wmi.h

@@ -0,0 +1,3052 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _WMI_H_
+#define _WMI_H_
+
+#include <linux/types.h>
+#include <net/mac80211.h>
+
+/*
+ * This file specifies the WMI interface for the Unified Software
+ * Architecture.
+ *
+ * It includes definitions of all the commands and events. Commands are
+ * messages from the host to the target. Events and Replies are messages
+ * from the target to the host.
+ *
+ * Ownership of correctness in regards to WMI commands belongs to the host
+ * driver and the target is not required to validate parameters for value,
+ * proper range, or any other checking.
+ *
+ * Guidelines for extending this interface are below.
+ *
+ * 1. Add new WMI commands ONLY within the specified range - 0x9000 - 0x9fff
+ *
+ * 2. Use ONLY u32 type for defining member variables within WMI
+ *    command/event structures. Do not use u8, u16, bool or
+ *    enum types within these structures.
+ *
+ * 3. DO NOT define bit fields within structures. Implement bit fields
+ *    using masks if necessary. Do not use the programming language's bit
+ *    field definition.
+ *
+ * 4. Define macros for encode/decode of u8, u16 fields within
+ *    the u32 variables. Use these macros for set/get of these fields.
+ *    Try to use this to optimize the structure without bloating it with
+ *    u32 variables for every lower sized field.
+ *
+ * 5. Do not use PACK/UNPACK attributes for the structures as each member
+ *    variable is already 4-byte aligned by virtue of being a u32
+ *    type.
+ *
+ * 6. Comment each parameter part of the WMI command/event structure by
+ *    using the 2 stars at the begining of C comment instead of one star to
+ *    enable HTML document generation using Doxygen.
+ *
+ */
+
+/* Control Path */
+struct wmi_cmd_hdr {
+	__le32 cmd_id;
+} __packed;
+
+#define WMI_CMD_HDR_CMD_ID_MASK   0x00FFFFFF
+#define WMI_CMD_HDR_CMD_ID_LSB    0
+#define WMI_CMD_HDR_PLT_PRIV_MASK 0xFF000000
+#define WMI_CMD_HDR_PLT_PRIV_LSB  24
+
+#define HTC_PROTOCOL_VERSION    0x0002
+#define WMI_PROTOCOL_VERSION    0x0002
+
+enum wmi_service_id {
+	WMI_SERVICE_BEACON_OFFLOAD = 0,   /* beacon offload */
+	WMI_SERVICE_SCAN_OFFLOAD,	  /* scan offload */
+	WMI_SERVICE_ROAM_OFFLOAD,	  /* roam offload */
+	WMI_SERVICE_BCN_MISS_OFFLOAD,     /* beacon miss offload */
+	WMI_SERVICE_STA_PWRSAVE,	  /* fake sleep + basic power save */
+	WMI_SERVICE_STA_ADVANCED_PWRSAVE, /* uapsd, pspoll, force sleep */
+	WMI_SERVICE_AP_UAPSD,		  /* uapsd on AP */
+	WMI_SERVICE_AP_DFS,		  /* DFS on AP */
+	WMI_SERVICE_11AC,		  /* supports 11ac */
+	WMI_SERVICE_BLOCKACK,	/* Supports triggering ADDBA/DELBA from host*/
+	WMI_SERVICE_PHYERR,		  /* PHY error */
+	WMI_SERVICE_BCN_FILTER,		  /* Beacon filter support */
+	WMI_SERVICE_RTT,		  /* RTT (round trip time) support */
+	WMI_SERVICE_RATECTRL,		  /* Rate-control */
+	WMI_SERVICE_WOW,		  /* WOW Support */
+	WMI_SERVICE_RATECTRL_CACHE,       /* Rate-control caching */
+	WMI_SERVICE_IRAM_TIDS,            /* TIDs in IRAM */
+	WMI_SERVICE_ARPNS_OFFLOAD,	  /* ARP NS Offload support */
+	WMI_SERVICE_NLO,		  /* Network list offload service */
+	WMI_SERVICE_GTK_OFFLOAD,	  /* GTK offload */
+	WMI_SERVICE_SCAN_SCH,		  /* Scan Scheduler Service */
+	WMI_SERVICE_CSA_OFFLOAD,	  /* CSA offload service */
+	WMI_SERVICE_CHATTER,		  /* Chatter service */
+	WMI_SERVICE_COEX_FREQAVOID,	  /* FW report freq range to avoid */
+	WMI_SERVICE_PACKET_POWER_SAVE,	  /* packet power save service */
+	WMI_SERVICE_FORCE_FW_HANG,        /* To test fw recovery mechanism */
+	WMI_SERVICE_GPIO,                 /* GPIO service */
+	WMI_SERVICE_STA_DTIM_PS_MODULATED_DTIM, /* Modulated DTIM support */
+	WMI_STA_UAPSD_BASIC_AUTO_TRIG,    /* UAPSD AC Trigger Generation  */
+	WMI_STA_UAPSD_VAR_AUTO_TRIG,      /* -do- */
+	WMI_SERVICE_STA_KEEP_ALIVE,       /* STA keep alive mechanism support */
+	WMI_SERVICE_TX_ENCAP,             /* Packet type for TX encapsulation */
+
+	WMI_SERVICE_LAST,
+	WMI_MAX_SERVICE = 64		  /* max service */
+};
+
+static inline char *wmi_service_name(int service_id)
+{
+	switch (service_id) {
+	case WMI_SERVICE_BEACON_OFFLOAD:
+		return "BEACON_OFFLOAD";
+	case WMI_SERVICE_SCAN_OFFLOAD:
+		return "SCAN_OFFLOAD";
+	case WMI_SERVICE_ROAM_OFFLOAD:
+		return "ROAM_OFFLOAD";
+	case WMI_SERVICE_BCN_MISS_OFFLOAD:
+		return "BCN_MISS_OFFLOAD";
+	case WMI_SERVICE_STA_PWRSAVE:
+		return "STA_PWRSAVE";
+	case WMI_SERVICE_STA_ADVANCED_PWRSAVE:
+		return "STA_ADVANCED_PWRSAVE";
+	case WMI_SERVICE_AP_UAPSD:
+		return "AP_UAPSD";
+	case WMI_SERVICE_AP_DFS:
+		return "AP_DFS";
+	case WMI_SERVICE_11AC:
+		return "11AC";
+	case WMI_SERVICE_BLOCKACK:
+		return "BLOCKACK";
+	case WMI_SERVICE_PHYERR:
+		return "PHYERR";
+	case WMI_SERVICE_BCN_FILTER:
+		return "BCN_FILTER";
+	case WMI_SERVICE_RTT:
+		return "RTT";
+	case WMI_SERVICE_RATECTRL:
+		return "RATECTRL";
+	case WMI_SERVICE_WOW:
+		return "WOW";
+	case WMI_SERVICE_RATECTRL_CACHE:
+		return "RATECTRL CACHE";
+	case WMI_SERVICE_IRAM_TIDS:
+		return "IRAM TIDS";
+	case WMI_SERVICE_ARPNS_OFFLOAD:
+		return "ARPNS_OFFLOAD";
+	case WMI_SERVICE_NLO:
+		return "NLO";
+	case WMI_SERVICE_GTK_OFFLOAD:
+		return "GTK_OFFLOAD";
+	case WMI_SERVICE_SCAN_SCH:
+		return "SCAN_SCH";
+	case WMI_SERVICE_CSA_OFFLOAD:
+		return "CSA_OFFLOAD";
+	case WMI_SERVICE_CHATTER:
+		return "CHATTER";
+	case WMI_SERVICE_COEX_FREQAVOID:
+		return "COEX_FREQAVOID";
+	case WMI_SERVICE_PACKET_POWER_SAVE:
+		return "PACKET_POWER_SAVE";
+	case WMI_SERVICE_FORCE_FW_HANG:
+		return "FORCE FW HANG";
+	case WMI_SERVICE_GPIO:
+		return "GPIO";
+	case WMI_SERVICE_STA_DTIM_PS_MODULATED_DTIM:
+		return "MODULATED DTIM";
+	case WMI_STA_UAPSD_BASIC_AUTO_TRIG:
+		return "BASIC UAPSD";
+	case WMI_STA_UAPSD_VAR_AUTO_TRIG:
+		return "VAR UAPSD";
+	case WMI_SERVICE_STA_KEEP_ALIVE:
+		return "STA KEEP ALIVE";
+	case WMI_SERVICE_TX_ENCAP:
+		return "TX ENCAP";
+	default:
+		return "UNKNOWN SERVICE\n";
+	}
+}
+
+
+#define WMI_SERVICE_BM_SIZE \
+	((WMI_MAX_SERVICE + sizeof(u32) - 1)/sizeof(u32))
+
+/* 2 word representation of MAC addr */
+struct wmi_mac_addr {
+	union {
+		u8 addr[6];
+		struct {
+			u32 word0;
+			u32 word1;
+		} __packed;
+	} __packed;
+} __packed;
+
+/* macro to convert MAC address from WMI word format to char array */
+#define WMI_MAC_ADDR_TO_CHAR_ARRAY(pwmi_mac_addr, c_macaddr) do { \
+	(c_macaddr)[0] =  ((pwmi_mac_addr)->word0) & 0xff; \
+	(c_macaddr)[1] = (((pwmi_mac_addr)->word0) >> 8) & 0xff; \
+	(c_macaddr)[2] = (((pwmi_mac_addr)->word0) >> 16) & 0xff; \
+	(c_macaddr)[3] = (((pwmi_mac_addr)->word0) >> 24) & 0xff; \
+	(c_macaddr)[4] =  ((pwmi_mac_addr)->word1) & 0xff; \
+	(c_macaddr)[5] = (((pwmi_mac_addr)->word1) >> 8) & 0xff; \
+	} while (0)
+
+/*
+ * wmi command groups.
+ */
+enum wmi_cmd_group {
+	/* 0 to 2 are reserved */
+	WMI_GRP_START = 0x3,
+	WMI_GRP_SCAN = WMI_GRP_START,
+	WMI_GRP_PDEV,
+	WMI_GRP_VDEV,
+	WMI_GRP_PEER,
+	WMI_GRP_MGMT,
+	WMI_GRP_BA_NEG,
+	WMI_GRP_STA_PS,
+	WMI_GRP_DFS,
+	WMI_GRP_ROAM,
+	WMI_GRP_OFL_SCAN,
+	WMI_GRP_P2P,
+	WMI_GRP_AP_PS,
+	WMI_GRP_RATE_CTRL,
+	WMI_GRP_PROFILE,
+	WMI_GRP_SUSPEND,
+	WMI_GRP_BCN_FILTER,
+	WMI_GRP_WOW,
+	WMI_GRP_RTT,
+	WMI_GRP_SPECTRAL,
+	WMI_GRP_STATS,
+	WMI_GRP_ARP_NS_OFL,
+	WMI_GRP_NLO_OFL,
+	WMI_GRP_GTK_OFL,
+	WMI_GRP_CSA_OFL,
+	WMI_GRP_CHATTER,
+	WMI_GRP_TID_ADDBA,
+	WMI_GRP_MISC,
+	WMI_GRP_GPIO,
+};
+
+#define WMI_CMD_GRP(grp_id) (((grp_id) << 12) | 0x1)
+#define WMI_EVT_GRP_START_ID(grp_id) (((grp_id) << 12) | 0x1)
+
+/* Command IDs and commande events. */
+enum wmi_cmd_id {
+	WMI_INIT_CMDID = 0x1,
+
+	/* Scan specific commands */
+	WMI_START_SCAN_CMDID = WMI_CMD_GRP(WMI_GRP_SCAN),
+	WMI_STOP_SCAN_CMDID,
+	WMI_SCAN_CHAN_LIST_CMDID,
+	WMI_SCAN_SCH_PRIO_TBL_CMDID,
+
+	/* PDEV (physical device) specific commands */
+	WMI_PDEV_SET_REGDOMAIN_CMDID = WMI_CMD_GRP(WMI_GRP_PDEV),
+	WMI_PDEV_SET_CHANNEL_CMDID,
+	WMI_PDEV_SET_PARAM_CMDID,
+	WMI_PDEV_PKTLOG_ENABLE_CMDID,
+	WMI_PDEV_PKTLOG_DISABLE_CMDID,
+	WMI_PDEV_SET_WMM_PARAMS_CMDID,
+	WMI_PDEV_SET_HT_CAP_IE_CMDID,
+	WMI_PDEV_SET_VHT_CAP_IE_CMDID,
+	WMI_PDEV_SET_DSCP_TID_MAP_CMDID,
+	WMI_PDEV_SET_QUIET_MODE_CMDID,
+	WMI_PDEV_GREEN_AP_PS_ENABLE_CMDID,
+	WMI_PDEV_GET_TPC_CONFIG_CMDID,
+	WMI_PDEV_SET_BASE_MACADDR_CMDID,
+
+	/* VDEV (virtual device) specific commands */
+	WMI_VDEV_CREATE_CMDID = WMI_CMD_GRP(WMI_GRP_VDEV),
+	WMI_VDEV_DELETE_CMDID,
+	WMI_VDEV_START_REQUEST_CMDID,
+	WMI_VDEV_RESTART_REQUEST_CMDID,
+	WMI_VDEV_UP_CMDID,
+	WMI_VDEV_STOP_CMDID,
+	WMI_VDEV_DOWN_CMDID,
+	WMI_VDEV_SET_PARAM_CMDID,
+	WMI_VDEV_INSTALL_KEY_CMDID,
+
+	/* peer specific commands */
+	WMI_PEER_CREATE_CMDID = WMI_CMD_GRP(WMI_GRP_PEER),
+	WMI_PEER_DELETE_CMDID,
+	WMI_PEER_FLUSH_TIDS_CMDID,
+	WMI_PEER_SET_PARAM_CMDID,
+	WMI_PEER_ASSOC_CMDID,
+	WMI_PEER_ADD_WDS_ENTRY_CMDID,
+	WMI_PEER_REMOVE_WDS_ENTRY_CMDID,
+	WMI_PEER_MCAST_GROUP_CMDID,
+
+	/* beacon/management specific commands */
+	WMI_BCN_TX_CMDID = WMI_CMD_GRP(WMI_GRP_MGMT),
+	WMI_PDEV_SEND_BCN_CMDID,
+	WMI_BCN_TMPL_CMDID,
+	WMI_BCN_FILTER_RX_CMDID,
+	WMI_PRB_REQ_FILTER_RX_CMDID,
+	WMI_MGMT_TX_CMDID,
+	WMI_PRB_TMPL_CMDID,
+
+	/* commands to directly control BA negotiation directly from host. */
+	WMI_ADDBA_CLEAR_RESP_CMDID = WMI_CMD_GRP(WMI_GRP_BA_NEG),
+	WMI_ADDBA_SEND_CMDID,
+	WMI_ADDBA_STATUS_CMDID,
+	WMI_DELBA_SEND_CMDID,
+	WMI_ADDBA_SET_RESP_CMDID,
+	WMI_SEND_SINGLEAMSDU_CMDID,
+
+	/* Station power save specific config */
+	WMI_STA_POWERSAVE_MODE_CMDID = WMI_CMD_GRP(WMI_GRP_STA_PS),
+	WMI_STA_POWERSAVE_PARAM_CMDID,
+	WMI_STA_MIMO_PS_MODE_CMDID,
+
+	/** DFS-specific commands */
+	WMI_PDEV_DFS_ENABLE_CMDID = WMI_CMD_GRP(WMI_GRP_DFS),
+	WMI_PDEV_DFS_DISABLE_CMDID,
+
+	/* Roaming specific  commands */
+	WMI_ROAM_SCAN_MODE = WMI_CMD_GRP(WMI_GRP_ROAM),
+	WMI_ROAM_SCAN_RSSI_THRESHOLD,
+	WMI_ROAM_SCAN_PERIOD,
+	WMI_ROAM_SCAN_RSSI_CHANGE_THRESHOLD,
+	WMI_ROAM_AP_PROFILE,
+
+	/* offload scan specific commands */
+	WMI_OFL_SCAN_ADD_AP_PROFILE = WMI_CMD_GRP(WMI_GRP_OFL_SCAN),
+	WMI_OFL_SCAN_REMOVE_AP_PROFILE,
+	WMI_OFL_SCAN_PERIOD,
+
+	/* P2P specific commands */
+	WMI_P2P_DEV_SET_DEVICE_INFO = WMI_CMD_GRP(WMI_GRP_P2P),
+	WMI_P2P_DEV_SET_DISCOVERABILITY,
+	WMI_P2P_GO_SET_BEACON_IE,
+	WMI_P2P_GO_SET_PROBE_RESP_IE,
+	WMI_P2P_SET_VENDOR_IE_DATA_CMDID,
+
+	/* AP power save specific config */
+	WMI_AP_PS_PEER_PARAM_CMDID = WMI_CMD_GRP(WMI_GRP_AP_PS),
+	WMI_AP_PS_PEER_UAPSD_COEX_CMDID,
+
+	/* Rate-control specific commands */
+	WMI_PEER_RATE_RETRY_SCHED_CMDID =
+	WMI_CMD_GRP(WMI_GRP_RATE_CTRL),
+
+	/* WLAN Profiling commands. */
+	WMI_WLAN_PROFILE_TRIGGER_CMDID = WMI_CMD_GRP(WMI_GRP_PROFILE),
+	WMI_WLAN_PROFILE_SET_HIST_INTVL_CMDID,
+	WMI_WLAN_PROFILE_GET_PROFILE_DATA_CMDID,
+	WMI_WLAN_PROFILE_ENABLE_PROFILE_ID_CMDID,
+	WMI_WLAN_PROFILE_LIST_PROFILE_ID_CMDID,
+
+	/* Suspend resume command Ids */
+	WMI_PDEV_SUSPEND_CMDID = WMI_CMD_GRP(WMI_GRP_SUSPEND),
+	WMI_PDEV_RESUME_CMDID,
+
+	/* Beacon filter commands */
+	WMI_ADD_BCN_FILTER_CMDID = WMI_CMD_GRP(WMI_GRP_BCN_FILTER),
+	WMI_RMV_BCN_FILTER_CMDID,
+
+	/* WOW Specific WMI commands*/
+	WMI_WOW_ADD_WAKE_PATTERN_CMDID = WMI_CMD_GRP(WMI_GRP_WOW),
+	WMI_WOW_DEL_WAKE_PATTERN_CMDID,
+	WMI_WOW_ENABLE_DISABLE_WAKE_EVENT_CMDID,
+	WMI_WOW_ENABLE_CMDID,
+	WMI_WOW_HOSTWAKEUP_FROM_SLEEP_CMDID,
+
+	/* RTT measurement related cmd */
+	WMI_RTT_MEASREQ_CMDID = WMI_CMD_GRP(WMI_GRP_RTT),
+	WMI_RTT_TSF_CMDID,
+
+	/* spectral scan commands */
+	WMI_VDEV_SPECTRAL_SCAN_CONFIGURE_CMDID = WMI_CMD_GRP(WMI_GRP_SPECTRAL),
+	WMI_VDEV_SPECTRAL_SCAN_ENABLE_CMDID,
+
+	/* F/W stats */
+	WMI_REQUEST_STATS_CMDID = WMI_CMD_GRP(WMI_GRP_STATS),
+
+	/* ARP OFFLOAD REQUEST*/
+	WMI_SET_ARP_NS_OFFLOAD_CMDID = WMI_CMD_GRP(WMI_GRP_ARP_NS_OFL),
+
+	/* NS offload confid*/
+	WMI_NETWORK_LIST_OFFLOAD_CONFIG_CMDID = WMI_CMD_GRP(WMI_GRP_NLO_OFL),
+
+	/* GTK offload Specific WMI commands*/
+	WMI_GTK_OFFLOAD_CMDID = WMI_CMD_GRP(WMI_GRP_GTK_OFL),
+
+	/* CSA offload Specific WMI commands*/
+	WMI_CSA_OFFLOAD_ENABLE_CMDID = WMI_CMD_GRP(WMI_GRP_CSA_OFL),
+	WMI_CSA_OFFLOAD_CHANSWITCH_CMDID,
+
+	/* Chatter commands*/
+	WMI_CHATTER_SET_MODE_CMDID = WMI_CMD_GRP(WMI_GRP_CHATTER),
+
+	/* addba specific commands */
+	WMI_PEER_TID_ADDBA_CMDID = WMI_CMD_GRP(WMI_GRP_TID_ADDBA),
+	WMI_PEER_TID_DELBA_CMDID,
+
+	/* set station mimo powersave method */
+	WMI_STA_DTIM_PS_METHOD_CMDID,
+	/* Configure the Station UAPSD AC Auto Trigger Parameters */
+	WMI_STA_UAPSD_AUTO_TRIG_CMDID,
+
+	/* STA Keep alive parameter configuration,
+	   Requires WMI_SERVICE_STA_KEEP_ALIVE */
+	WMI_STA_KEEPALIVE_CMD,
+
+	/* misc command group */
+	WMI_ECHO_CMDID = WMI_CMD_GRP(WMI_GRP_MISC),
+	WMI_PDEV_UTF_CMDID,
+	WMI_DBGLOG_CFG_CMDID,
+	WMI_PDEV_QVIT_CMDID,
+	WMI_PDEV_FTM_INTG_CMDID,
+	WMI_VDEV_SET_KEEPALIVE_CMDID,
+	WMI_VDEV_GET_KEEPALIVE_CMDID,
+
+	/* GPIO Configuration */
+	WMI_GPIO_CONFIG_CMDID = WMI_CMD_GRP(WMI_GRP_GPIO),
+	WMI_GPIO_OUTPUT_CMDID,
+};
+
+enum wmi_event_id {
+	WMI_SERVICE_READY_EVENTID = 0x1,
+	WMI_READY_EVENTID,
+
+	/* Scan specific events */
+	WMI_SCAN_EVENTID = WMI_EVT_GRP_START_ID(WMI_GRP_SCAN),
+
+	/* PDEV specific events */
+	WMI_PDEV_TPC_CONFIG_EVENTID = WMI_EVT_GRP_START_ID(WMI_GRP_PDEV),
+	WMI_CHAN_INFO_EVENTID,
+	WMI_PHYERR_EVENTID,
+
+	/* VDEV specific events */
+	WMI_VDEV_START_RESP_EVENTID = WMI_EVT_GRP_START_ID(WMI_GRP_VDEV),
+	WMI_VDEV_STOPPED_EVENTID,
+	WMI_VDEV_INSTALL_KEY_COMPLETE_EVENTID,
+
+	/* peer specific events */
+	WMI_PEER_STA_KICKOUT_EVENTID = WMI_EVT_GRP_START_ID(WMI_GRP_PEER),
+
+	/* beacon/mgmt specific events */
+	WMI_MGMT_RX_EVENTID = WMI_EVT_GRP_START_ID(WMI_GRP_MGMT),
+	WMI_HOST_SWBA_EVENTID,
+	WMI_TBTTOFFSET_UPDATE_EVENTID,
+
+	/* ADDBA Related WMI Events*/
+	WMI_TX_DELBA_COMPLETE_EVENTID = WMI_EVT_GRP_START_ID(WMI_GRP_BA_NEG),
+	WMI_TX_ADDBA_COMPLETE_EVENTID,
+
+	/* Roam event to trigger roaming on host */
+	WMI_ROAM_EVENTID = WMI_EVT_GRP_START_ID(WMI_GRP_ROAM),
+	WMI_PROFILE_MATCH,
+
+	/* WoW */
+	WMI_WOW_WAKEUP_HOST_EVENTID = WMI_EVT_GRP_START_ID(WMI_GRP_WOW),
+
+	/* RTT */
+	WMI_RTT_MEASUREMENT_REPORT_EVENTID = WMI_EVT_GRP_START_ID(WMI_GRP_RTT),
+	WMI_TSF_MEASUREMENT_REPORT_EVENTID,
+	WMI_RTT_ERROR_REPORT_EVENTID,
+
+	/* GTK offload */
+	WMI_GTK_OFFLOAD_STATUS_EVENTID = WMI_EVT_GRP_START_ID(WMI_GRP_GTK_OFL),
+	WMI_GTK_REKEY_FAIL_EVENTID,
+
+	/* CSA IE received event */
+	WMI_CSA_HANDLING_EVENTID = WMI_EVT_GRP_START_ID(WMI_GRP_CSA_OFL),
+
+	/* Misc events */
+	WMI_ECHO_EVENTID = WMI_EVT_GRP_START_ID(WMI_GRP_MISC),
+	WMI_PDEV_UTF_EVENTID,
+	WMI_DEBUG_MESG_EVENTID,
+	WMI_UPDATE_STATS_EVENTID,
+	WMI_DEBUG_PRINT_EVENTID,
+	WMI_DCS_INTERFERENCE_EVENTID,
+	WMI_PDEV_QVIT_EVENTID,
+	WMI_WLAN_PROFILE_DATA_EVENTID,
+	WMI_PDEV_FTM_INTG_EVENTID,
+	WMI_WLAN_FREQ_AVOID_EVENTID,
+	WMI_VDEV_GET_KEEPALIVE_EVENTID,
+
+	/* GPIO Event */
+	WMI_GPIO_INPUT_EVENTID = WMI_EVT_GRP_START_ID(WMI_GRP_GPIO),
+};
+
+enum wmi_phy_mode {
+	MODE_11A        = 0,   /* 11a Mode */
+	MODE_11G        = 1,   /* 11b/g Mode */
+	MODE_11B        = 2,   /* 11b Mode */
+	MODE_11GONLY    = 3,   /* 11g only Mode */
+	MODE_11NA_HT20   = 4,  /* 11a HT20 mode */
+	MODE_11NG_HT20   = 5,  /* 11g HT20 mode */
+	MODE_11NA_HT40   = 6,  /* 11a HT40 mode */
+	MODE_11NG_HT40   = 7,  /* 11g HT40 mode */
+	MODE_11AC_VHT20 = 8,
+	MODE_11AC_VHT40 = 9,
+	MODE_11AC_VHT80 = 10,
+	/*    MODE_11AC_VHT160 = 11, */
+	MODE_11AC_VHT20_2G = 11,
+	MODE_11AC_VHT40_2G = 12,
+	MODE_11AC_VHT80_2G = 13,
+	MODE_UNKNOWN    = 14,
+	MODE_MAX        = 14
+};
+
+#define WMI_CHAN_LIST_TAG	0x1
+#define WMI_SSID_LIST_TAG	0x2
+#define WMI_BSSID_LIST_TAG	0x3
+#define WMI_IE_TAG		0x4
+
+struct wmi_channel {
+	__le32 mhz;
+	__le32 band_center_freq1;
+	__le32 band_center_freq2; /* valid for 11ac, 80plus80 */
+	union {
+		__le32 flags; /* WMI_CHAN_FLAG_ */
+		struct {
+			u8 mode; /* only 6 LSBs */
+		} __packed;
+	} __packed;
+	union {
+		__le32 reginfo0;
+		struct {
+			u8 min_power;
+			u8 max_power;
+			u8 reg_power;
+			u8 reg_classid;
+		} __packed;
+	} __packed;
+	union {
+		__le32 reginfo1;
+		struct {
+			u8 antenna_max;
+		} __packed;
+	} __packed;
+} __packed;
+
+struct wmi_channel_arg {
+	u32 freq;
+	u32 band_center_freq1;
+	bool passive;
+	bool allow_ibss;
+	bool allow_ht;
+	bool allow_vht;
+	bool ht40plus;
+	/* note: power unit is 1/4th of dBm */
+	u32 min_power;
+	u32 max_power;
+	u32 max_reg_power;
+	u32 max_antenna_gain;
+	u32 reg_class_id;
+	enum wmi_phy_mode mode;
+};
+
+enum wmi_channel_change_cause {
+	WMI_CHANNEL_CHANGE_CAUSE_NONE = 0,
+	WMI_CHANNEL_CHANGE_CAUSE_CSA,
+};
+
+#define WMI_CHAN_FLAG_HT40_PLUS      (1 << 6)
+#define WMI_CHAN_FLAG_PASSIVE        (1 << 7)
+#define WMI_CHAN_FLAG_ADHOC_ALLOWED  (1 << 8)
+#define WMI_CHAN_FLAG_AP_DISABLED    (1 << 9)
+#define WMI_CHAN_FLAG_DFS            (1 << 10)
+#define WMI_CHAN_FLAG_ALLOW_HT       (1 << 11)
+#define WMI_CHAN_FLAG_ALLOW_VHT      (1 << 12)
+
+/* Indicate reason for channel switch */
+#define WMI_CHANNEL_CHANGE_CAUSE_CSA (1 << 13)
+
+#define WMI_MAX_SPATIAL_STREAM   3
+
+/* HT Capabilities*/
+#define WMI_HT_CAP_ENABLED                0x0001   /* HT Enabled/ disabled */
+#define WMI_HT_CAP_HT20_SGI       0x0002   /* Short Guard Interval with HT20 */
+#define WMI_HT_CAP_DYNAMIC_SMPS           0x0004   /* Dynamic MIMO powersave */
+#define WMI_HT_CAP_TX_STBC                0x0008   /* B3 TX STBC */
+#define WMI_HT_CAP_TX_STBC_MASK_SHIFT     3
+#define WMI_HT_CAP_RX_STBC                0x0030   /* B4-B5 RX STBC */
+#define WMI_HT_CAP_RX_STBC_MASK_SHIFT     4
+#define WMI_HT_CAP_LDPC                   0x0040   /* LDPC supported */
+#define WMI_HT_CAP_L_SIG_TXOP_PROT        0x0080   /* L-SIG TXOP Protection */
+#define WMI_HT_CAP_MPDU_DENSITY           0x0700   /* MPDU Density */
+#define WMI_HT_CAP_MPDU_DENSITY_MASK_SHIFT 8
+#define WMI_HT_CAP_HT40_SGI               0x0800
+
+#define WMI_HT_CAP_DEFAULT_ALL (WMI_HT_CAP_ENABLED       | \
+				WMI_HT_CAP_HT20_SGI      | \
+				WMI_HT_CAP_HT40_SGI      | \
+				WMI_HT_CAP_TX_STBC       | \
+				WMI_HT_CAP_RX_STBC       | \
+				WMI_HT_CAP_LDPC)
+
+
+/*
+ * WMI_VHT_CAP_* these maps to ieee 802.11ac vht capability information
+ * field. The fields not defined here are not supported, or reserved.
+ * Do not change these masks and if you have to add new one follow the
+ * bitmask as specified by 802.11ac draft.
+ */
+
+#define WMI_VHT_CAP_MAX_MPDU_LEN_MASK            0x00000003
+#define WMI_VHT_CAP_RX_LDPC                      0x00000010
+#define WMI_VHT_CAP_SGI_80MHZ                    0x00000020
+#define WMI_VHT_CAP_TX_STBC                      0x00000080
+#define WMI_VHT_CAP_RX_STBC_MASK                 0x00000300
+#define WMI_VHT_CAP_RX_STBC_MASK_SHIFT           8
+#define WMI_VHT_CAP_MAX_AMPDU_LEN_EXP            0x03800000
+#define WMI_VHT_CAP_MAX_AMPDU_LEN_EXP_SHIFT      23
+#define WMI_VHT_CAP_RX_FIXED_ANT                 0x10000000
+#define WMI_VHT_CAP_TX_FIXED_ANT                 0x20000000
+
+/* The following also refer for max HT AMSDU */
+#define WMI_VHT_CAP_MAX_MPDU_LEN_3839            0x00000000
+#define WMI_VHT_CAP_MAX_MPDU_LEN_7935            0x00000001
+#define WMI_VHT_CAP_MAX_MPDU_LEN_11454           0x00000002
+
+#define WMI_VHT_CAP_DEFAULT_ALL (WMI_VHT_CAP_MAX_MPDU_LEN_11454  | \
+				 WMI_VHT_CAP_RX_LDPC             | \
+				 WMI_VHT_CAP_SGI_80MHZ           | \
+				 WMI_VHT_CAP_TX_STBC             | \
+				 WMI_VHT_CAP_RX_STBC_MASK        | \
+				 WMI_VHT_CAP_MAX_AMPDU_LEN_EXP   | \
+				 WMI_VHT_CAP_RX_FIXED_ANT        | \
+				 WMI_VHT_CAP_TX_FIXED_ANT)
+
+/*
+ * Interested readers refer to Rx/Tx MCS Map definition as defined in
+ * 802.11ac
+ */
+#define WMI_VHT_MAX_MCS_4_SS_MASK(r, ss)      ((3 & (r)) << (((ss) - 1) << 1))
+#define WMI_VHT_MAX_SUPP_RATE_MASK           0x1fff0000
+#define WMI_VHT_MAX_SUPP_RATE_MASK_SHIFT     16
+
+enum {
+	REGDMN_MODE_11A              = 0x00001, /* 11a channels */
+	REGDMN_MODE_TURBO            = 0x00002, /* 11a turbo-only channels */
+	REGDMN_MODE_11B              = 0x00004, /* 11b channels */
+	REGDMN_MODE_PUREG            = 0x00008, /* 11g channels (OFDM only) */
+	REGDMN_MODE_11G              = 0x00008, /* XXX historical */
+	REGDMN_MODE_108G             = 0x00020, /* 11a+Turbo channels */
+	REGDMN_MODE_108A             = 0x00040, /* 11g+Turbo channels */
+	REGDMN_MODE_XR               = 0x00100, /* XR channels */
+	REGDMN_MODE_11A_HALF_RATE    = 0x00200, /* 11A half rate channels */
+	REGDMN_MODE_11A_QUARTER_RATE = 0x00400, /* 11A quarter rate channels */
+	REGDMN_MODE_11NG_HT20        = 0x00800, /* 11N-G HT20 channels */
+	REGDMN_MODE_11NA_HT20        = 0x01000, /* 11N-A HT20 channels */
+	REGDMN_MODE_11NG_HT40PLUS    = 0x02000, /* 11N-G HT40 + channels */
+	REGDMN_MODE_11NG_HT40MINUS   = 0x04000, /* 11N-G HT40 - channels */
+	REGDMN_MODE_11NA_HT40PLUS    = 0x08000, /* 11N-A HT40 + channels */
+	REGDMN_MODE_11NA_HT40MINUS   = 0x10000, /* 11N-A HT40 - channels */
+	REGDMN_MODE_11AC_VHT20       = 0x20000, /* 5Ghz, VHT20 */
+	REGDMN_MODE_11AC_VHT40PLUS   = 0x40000, /* 5Ghz, VHT40 + channels */
+	REGDMN_MODE_11AC_VHT40MINUS  = 0x80000, /* 5Ghz  VHT40 - channels */
+	REGDMN_MODE_11AC_VHT80       = 0x100000, /* 5Ghz, VHT80 channels */
+	REGDMN_MODE_ALL              = 0xffffffff
+};
+
+#define REGDMN_CAP1_CHAN_HALF_RATE        0x00000001
+#define REGDMN_CAP1_CHAN_QUARTER_RATE     0x00000002
+#define REGDMN_CAP1_CHAN_HAL49GHZ         0x00000004
+
+/* regulatory capabilities */
+#define REGDMN_EEPROM_EEREGCAP_EN_FCC_MIDBAND   0x0040
+#define REGDMN_EEPROM_EEREGCAP_EN_KK_U1_EVEN    0x0080
+#define REGDMN_EEPROM_EEREGCAP_EN_KK_U2         0x0100
+#define REGDMN_EEPROM_EEREGCAP_EN_KK_MIDBAND    0x0200
+#define REGDMN_EEPROM_EEREGCAP_EN_KK_U1_ODD     0x0400
+#define REGDMN_EEPROM_EEREGCAP_EN_KK_NEW_11A    0x0800
+
+struct hal_reg_capabilities {
+	/* regdomain value specified in EEPROM */
+	__le32 eeprom_rd;
+	/*regdomain */
+	__le32 eeprom_rd_ext;
+	/* CAP1 capabilities bit map. */
+	__le32 regcap1;
+	/* REGDMN EEPROM CAP. */
+	__le32 regcap2;
+	/* REGDMN MODE */
+	__le32 wireless_modes;
+	__le32 low_2ghz_chan;
+	__le32 high_2ghz_chan;
+	__le32 low_5ghz_chan;
+	__le32 high_5ghz_chan;
+} __packed;
+
+enum wlan_mode_capability {
+	WHAL_WLAN_11A_CAPABILITY   = 0x1,
+	WHAL_WLAN_11G_CAPABILITY   = 0x2,
+	WHAL_WLAN_11AG_CAPABILITY  = 0x3,
+};
+
+/* structure used by FW for requesting host memory */
+struct wlan_host_mem_req {
+	/* ID of the request */
+	__le32 req_id;
+	/* size of the  of each unit */
+	__le32 unit_size;
+	/* flags to  indicate that
+	 * the number units is dependent
+	 * on number of resources(num vdevs num peers .. etc)
+	 */
+	__le32 num_unit_info;
+	/*
+	 * actual number of units to allocate . if flags in the num_unit_info
+	 * indicate that number of units is tied to number of a particular
+	 * resource to allocate then  num_units filed is set to 0 and host
+	 * will derive the number units from number of the resources it is
+	 * requesting.
+	 */
+	__le32 num_units;
+} __packed;
+
+#define WMI_SERVICE_IS_ENABLED(wmi_svc_bmap, svc_id) \
+	((((wmi_svc_bmap)[(svc_id)/(sizeof(u32))]) & \
+	(1 << ((svc_id)%(sizeof(u32))))) != 0)
+
+/*
+ * The following struct holds optional payload for
+ * wmi_service_ready_event,e.g., 11ac pass some of the
+ * device capability to the host.
+ */
+struct wmi_service_ready_event {
+	__le32 sw_version;
+	__le32 sw_version_1;
+	__le32 abi_version;
+	/* WMI_PHY_CAPABILITY */
+	__le32 phy_capability;
+	/* Maximum number of frag table entries that SW will populate less 1 */
+	__le32 max_frag_entry;
+	__le32 wmi_service_bitmap[WMI_SERVICE_BM_SIZE];
+	__le32 num_rf_chains;
+	/*
+	 * The following field is only valid for service type
+	 * WMI_SERVICE_11AC
+	 */
+	__le32 ht_cap_info; /* WMI HT Capability */
+	__le32 vht_cap_info; /* VHT capability info field of 802.11ac */
+	__le32 vht_supp_mcs; /* VHT Supported MCS Set field Rx/Tx same */
+	__le32 hw_min_tx_power;
+	__le32 hw_max_tx_power;
+	struct hal_reg_capabilities hal_reg_capabilities;
+	__le32 sys_cap_info;
+	__le32 min_pkt_size_enable; /* Enterprise mode short pkt enable */
+	/*
+	 * Max beacon and Probe Response IE offload size
+	 * (includes optional P2P IEs)
+	 */
+	__le32 max_bcn_ie_size;
+	/*
+	 * request to host to allocate a chuck of memory and pss it down to FW
+	 * via WM_INIT. FW uses this as FW extesnsion memory for saving its
+	 * data structures. Only valid for low latency interfaces like PCIE
+	 * where FW can access this memory directly (or) by DMA.
+	 */
+	__le32 num_mem_reqs;
+	struct wlan_host_mem_req mem_reqs[1];
+} __packed;
+
+/*
+ * status consists of  upper 16 bits fo int status and lower 16 bits of
+ * module ID that retuned status
+ */
+#define WLAN_INIT_STATUS_SUCCESS   0x0
+#define WLAN_GET_INIT_STATUS_REASON(status)    ((status) & 0xffff)
+#define WLAN_GET_INIT_STATUS_MODULE_ID(status) (((status) >> 16) & 0xffff)
+
+#define WMI_SERVICE_READY_TIMEOUT_HZ (5*HZ)
+#define WMI_UNIFIED_READY_TIMEOUT_HZ (5*HZ)
+
+struct wmi_ready_event {
+	__le32 sw_version;
+	__le32 abi_version;
+	struct wmi_mac_addr mac_addr;
+	__le32 status;
+} __packed;
+
+struct wmi_resource_config {
+	/* number of virtual devices (VAPs) to support */
+	__le32 num_vdevs;
+
+	/* number of peer nodes to support */
+	__le32 num_peers;
+
+	/*
+	 * In offload mode target supports features like WOW, chatter and
+	 * other protocol offloads. In order to support them some
+	 * functionalities like reorder buffering, PN checking need to be
+	 * done in target. This determines maximum number of peers suported
+	 * by target in offload mode
+	 */
+	__le32 num_offload_peers;
+
+	/* For target-based RX reordering */
+	__le32 num_offload_reorder_bufs;
+
+	/* number of keys per peer */
+	__le32 num_peer_keys;
+
+	/* total number of TX/RX data TIDs */
+	__le32 num_tids;
+
+	/*
+	 * max skid for resolving hash collisions
+	 *
+	 *   The address search table is sparse, so that if two MAC addresses
+	 *   result in the same hash value, the second of these conflicting
+	 *   entries can slide to the next index in the address search table,
+	 *   and use it, if it is unoccupied.  This ast_skid_limit parameter
+	 *   specifies the upper bound on how many subsequent indices to search
+	 *   over to find an unoccupied space.
+	 */
+	__le32 ast_skid_limit;
+
+	/*
+	 * the nominal chain mask for transmit
+	 *
+	 *   The chain mask may be modified dynamically, e.g. to operate AP
+	 *   tx with a reduced number of chains if no clients are associated.
+	 *   This configuration parameter specifies the nominal chain-mask that
+	 *   should be used when not operating with a reduced set of tx chains.
+	 */
+	__le32 tx_chain_mask;
+
+	/*
+	 * the nominal chain mask for receive
+	 *
+	 *   The chain mask may be modified dynamically, e.g. for a client
+	 *   to use a reduced number of chains for receive if the traffic to
+	 *   the client is low enough that it doesn't require downlink MIMO
+	 *   or antenna diversity.
+	 *   This configuration parameter specifies the nominal chain-mask that
+	 *   should be used when not operating with a reduced set of rx chains.
+	 */
+	__le32 rx_chain_mask;
+
+	/*
+	 * what rx reorder timeout (ms) to use for the AC
+	 *
+	 *   Each WMM access class (voice, video, best-effort, background) will
+	 *   have its own timeout value to dictate how long to wait for missing
+	 *   rx MPDUs to arrive before flushing subsequent MPDUs that have
+	 *   already been received.
+	 *   This parameter specifies the timeout in milliseconds for each
+	 *   class.
+	 */
+	__le32 rx_timeout_pri_vi;
+	__le32 rx_timeout_pri_vo;
+	__le32 rx_timeout_pri_be;
+	__le32 rx_timeout_pri_bk;
+
+	/*
+	 * what mode the rx should decap packets to
+	 *
+	 *   MAC can decap to RAW (no decap), native wifi or Ethernet types
+	 *   THis setting also determines the default TX behavior, however TX
+	 *   behavior can be modified on a per VAP basis during VAP init
+	 */
+	__le32 rx_decap_mode;
+
+	/* what is the maximum scan requests than can be queued */
+	__le32 scan_max_pending_reqs;
+
+	/* maximum VDEV that could use BMISS offload */
+	__le32 bmiss_offload_max_vdev;
+
+	/* maximum VDEV that could use offload roaming */
+	__le32 roam_offload_max_vdev;
+
+	/* maximum AP profiles that would push to offload roaming */
+	__le32 roam_offload_max_ap_profiles;
+
+	/*
+	 * how many groups to use for mcast->ucast conversion
+	 *
+	 *   The target's WAL maintains a table to hold information regarding
+	 *   which peers belong to a given multicast group, so that if
+	 *   multicast->unicast conversion is enabled, the target can convert
+	 *   multicast tx frames to a series of unicast tx frames, to each
+	 *   peer within the multicast group.
+	     This num_mcast_groups configuration parameter tells the target how
+	 *   many multicast groups to provide storage for within its multicast
+	 *   group membership table.
+	 */
+	__le32 num_mcast_groups;
+
+	/*
+	 * size to alloc for the mcast membership table
+	 *
+	 *   This num_mcast_table_elems configuration parameter tells the
+	 *   target how many peer elements it needs to provide storage for in
+	 *   its multicast group membership table.
+	 *   These multicast group membership table elements are shared by the
+	 *   multicast groups stored within the table.
+	 */
+	__le32 num_mcast_table_elems;
+
+	/*
+	 * whether/how to do multicast->unicast conversion
+	 *
+	 *   This configuration parameter specifies whether the target should
+	 *   perform multicast --> unicast conversion on transmit, and if so,
+	 *   what to do if it finds no entries in its multicast group
+	 *   membership table for the multicast IP address in the tx frame.
+	 *   Configuration value:
+	 *   0 -> Do not perform multicast to unicast conversion.
+	 *   1 -> Convert multicast frames to unicast, if the IP multicast
+	 *        address from the tx frame is found in the multicast group
+	 *        membership table.  If the IP multicast address is not found,
+	 *        drop the frame.
+	 *   2 -> Convert multicast frames to unicast, if the IP multicast
+	 *        address from the tx frame is found in the multicast group
+	 *        membership table.  If the IP multicast address is not found,
+	 *        transmit the frame as multicast.
+	 */
+	__le32 mcast2ucast_mode;
+
+	/*
+	 * how much memory to allocate for a tx PPDU dbg log
+	 *
+	 *   This parameter controls how much memory the target will allocate
+	 *   to store a log of tx PPDU meta-information (how large the PPDU
+	 *   was, when it was sent, whether it was successful, etc.)
+	 */
+	__le32 tx_dbg_log_size;
+
+	/* how many AST entries to be allocated for WDS */
+	__le32 num_wds_entries;
+
+	/*
+	 * MAC DMA burst size, e.g., For target PCI limit can be
+	 * 0 -default, 1 256B
+	 */
+	__le32 dma_burst_size;
+
+	/*
+	 * Fixed delimiters to be inserted after every MPDU to
+	 * account for interface latency to avoid underrun.
+	 */
+	__le32 mac_aggr_delim;
+
+	/*
+	 *   determine whether target is responsible for detecting duplicate
+	 *   non-aggregate MPDU and timing out stale fragments.
+	 *
+	 *   A-MPDU reordering is always performed on the target.
+	 *
+	 *   0: target responsible for frag timeout and dup checking
+	 *   1: host responsible for frag timeout and dup checking
+	 */
+	__le32 rx_skip_defrag_timeout_dup_detection_check;
+
+	/*
+	 * Configuration for VoW :
+	 * No of Video Nodes to be supported
+	 * and Max no of descriptors for each Video link (node).
+	 */
+	__le32 vow_config;
+
+	/* maximum VDEV that could use GTK offload */
+	__le32 gtk_offload_max_vdev;
+
+	/* Number of msdu descriptors target should use */
+	__le32 num_msdu_desc;
+
+	/*
+	 * Max. number of Tx fragments per MSDU
+	 *  This parameter controls the max number of Tx fragments per MSDU.
+	 *  This is sent by the target as part of the WMI_SERVICE_READY event
+	 *  and is overriden by the OS shim as required.
+	 */
+	__le32 max_frag_entries;
+} __packed;
+
+/* strucutre describing host memory chunk. */
+struct host_memory_chunk {
+	/* id of the request that is passed up in service ready */
+	__le32 req_id;
+	/* the physical address the memory chunk */
+	__le32 ptr;
+	/* size of the chunk */
+	__le32 size;
+} __packed;
+
+struct wmi_init_cmd {
+	struct wmi_resource_config resource_config;
+	__le32 num_host_mem_chunks;
+
+	/*
+	 * variable number of host memory chunks.
+	 * This should be the last element in the structure
+	 */
+	struct host_memory_chunk host_mem_chunks[1];
+} __packed;
+
+/* TLV for channel list */
+struct wmi_chan_list {
+	__le32 tag; /* WMI_CHAN_LIST_TAG */
+	__le32 num_chan;
+	__le32 channel_list[0];
+} __packed;
+
+struct wmi_bssid_list {
+	__le32 tag; /* WMI_BSSID_LIST_TAG */
+	__le32 num_bssid;
+	struct wmi_mac_addr bssid_list[0];
+} __packed;
+
+struct wmi_ie_data {
+	__le32 tag; /* WMI_IE_TAG */
+	__le32 ie_len;
+	u8 ie_data[0];
+} __packed;
+
+struct wmi_ssid {
+	__le32 ssid_len;
+	u8 ssid[32];
+} __packed;
+
+struct wmi_ssid_list {
+	__le32 tag; /* WMI_SSID_LIST_TAG */
+	__le32 num_ssids;
+	struct wmi_ssid ssids[0];
+} __packed;
+
+/* prefix used by scan requestor ids on the host */
+#define WMI_HOST_SCAN_REQUESTOR_ID_PREFIX 0xA000
+
+/* prefix used by scan request ids generated on the host */
+/* host cycles through the lower 12 bits to generate ids */
+#define WMI_HOST_SCAN_REQ_ID_PREFIX 0xA000
+
+#define WLAN_SCAN_PARAMS_MAX_SSID    16
+#define WLAN_SCAN_PARAMS_MAX_BSSID   4
+#define WLAN_SCAN_PARAMS_MAX_IE_LEN  256
+
+/* Scan priority numbers must be sequential, starting with 0 */
+enum wmi_scan_priority {
+	WMI_SCAN_PRIORITY_VERY_LOW = 0,
+	WMI_SCAN_PRIORITY_LOW,
+	WMI_SCAN_PRIORITY_MEDIUM,
+	WMI_SCAN_PRIORITY_HIGH,
+	WMI_SCAN_PRIORITY_VERY_HIGH,
+	WMI_SCAN_PRIORITY_COUNT   /* number of priorities supported */
+};
+
+struct wmi_start_scan_cmd {
+	/* Scan ID */
+	__le32 scan_id;
+	/* Scan requestor ID */
+	__le32 scan_req_id;
+	/* VDEV id(interface) that is requesting scan */
+	__le32 vdev_id;
+	/* Scan Priority, input to scan scheduler */
+	__le32 scan_priority;
+	/* Scan events subscription */
+	__le32 notify_scan_events;
+	/* dwell time in msec on active channels */
+	__le32 dwell_time_active;
+	/* dwell time in msec on passive channels */
+	__le32 dwell_time_passive;
+	/*
+	 * min time in msec on the BSS channel,only valid if atleast one
+	 * VDEV is active
+	 */
+	__le32 min_rest_time;
+	/*
+	 * max rest time in msec on the BSS channel,only valid if at least
+	 * one VDEV is active
+	 */
+	/*
+	 * the scanner will rest on the bss channel at least min_rest_time
+	 * after min_rest_time the scanner will start checking for tx/rx
+	 * activity on all VDEVs. if there is no activity the scanner will
+	 * switch to off channel. if there is activity the scanner will let
+	 * the radio on the bss channel until max_rest_time expires.at
+	 * max_rest_time scanner will switch to off channel irrespective of
+	 * activity. activity is determined by the idle_time parameter.
+	 */
+	__le32 max_rest_time;
+	/*
+	 * time before sending next set of probe requests.
+	 * The scanner keeps repeating probe requests transmission with
+	 * period specified by repeat_probe_time.
+	 * The number of probe requests specified depends on the ssid_list
+	 * and bssid_list
+	 */
+	__le32 repeat_probe_time;
+	/* time in msec between 2 consequetive probe requests with in a set. */
+	__le32 probe_spacing_time;
+	/*
+	 * data inactivity time in msec on bss channel that will be used by
+	 * scanner for measuring the inactivity.
+	 */
+	__le32 idle_time;
+	/* maximum time in msec allowed for scan  */
+	__le32 max_scan_time;
+	/*
+	 * delay in msec before sending first probe request after switching
+	 * to a channel
+	 */
+	__le32 probe_delay;
+	/* Scan control flags */
+	__le32 scan_ctrl_flags;
+
+	/* Burst duration time in msecs */
+	__le32 burst_duration;
+	/*
+	 * TLV (tag length value )  paramerters follow the scan_cmd structure.
+	 * TLV can contain channel list, bssid list, ssid list and
+	 * ie. the TLV tags are defined above;
+	 */
+} __packed;
+
+struct wmi_ssid_arg {
+	int len;
+	const u8 *ssid;
+};
+
+struct wmi_bssid_arg {
+	const u8 *bssid;
+};
+
+struct wmi_start_scan_arg {
+	u32 scan_id;
+	u32 scan_req_id;
+	u32 vdev_id;
+	u32 scan_priority;
+	u32 notify_scan_events;
+	u32 dwell_time_active;
+	u32 dwell_time_passive;
+	u32 min_rest_time;
+	u32 max_rest_time;
+	u32 repeat_probe_time;
+	u32 probe_spacing_time;
+	u32 idle_time;
+	u32 max_scan_time;
+	u32 probe_delay;
+	u32 scan_ctrl_flags;
+
+	u32 ie_len;
+	u32 n_channels;
+	u32 n_ssids;
+	u32 n_bssids;
+
+	u8 ie[WLAN_SCAN_PARAMS_MAX_IE_LEN];
+	u32 channels[64];
+	struct wmi_ssid_arg ssids[WLAN_SCAN_PARAMS_MAX_SSID];
+	struct wmi_bssid_arg bssids[WLAN_SCAN_PARAMS_MAX_BSSID];
+};
+
+/* scan control flags */
+
+/* passively scan all channels including active channels */
+#define WMI_SCAN_FLAG_PASSIVE        0x1
+/* add wild card ssid probe request even though ssid_list is specified. */
+#define WMI_SCAN_ADD_BCAST_PROBE_REQ 0x2
+/* add cck rates to rates/xrate ie for the generated probe request */
+#define WMI_SCAN_ADD_CCK_RATES 0x4
+/* add ofdm rates to rates/xrate ie for the generated probe request */
+#define WMI_SCAN_ADD_OFDM_RATES 0x8
+/* To enable indication of Chan load and Noise floor to host */
+#define WMI_SCAN_CHAN_STAT_EVENT 0x10
+/* Filter Probe request frames  */
+#define WMI_SCAN_FILTER_PROBE_REQ 0x20
+/* When set, DFS channels will not be scanned */
+#define WMI_SCAN_BYPASS_DFS_CHN 0x40
+/* Different FW scan engine may choose to bail out on errors.
+ * Allow the driver to have influence over that. */
+#define WMI_SCAN_CONTINUE_ON_ERROR 0x80
+
+/* WMI_SCAN_CLASS_MASK must be the same value as IEEE80211_SCAN_CLASS_MASK */
+#define WMI_SCAN_CLASS_MASK 0xFF000000
+
+
+enum wmi_stop_scan_type {
+	WMI_SCAN_STOP_ONE	= 0x00000000, /* stop by scan_id */
+	WMI_SCAN_STOP_VDEV_ALL	= 0x01000000, /* stop by vdev_id */
+	WMI_SCAN_STOP_ALL	= 0x04000000, /* stop all scans */
+};
+
+struct wmi_stop_scan_cmd {
+	__le32 scan_req_id;
+	__le32 scan_id;
+	__le32 req_type;
+	__le32 vdev_id;
+} __packed;
+
+struct wmi_stop_scan_arg {
+	u32 req_id;
+	enum wmi_stop_scan_type req_type;
+	union {
+		u32 scan_id;
+		u32 vdev_id;
+	} u;
+};
+
+struct wmi_scan_chan_list_cmd {
+	__le32 num_scan_chans;
+	struct wmi_channel chan_info[0];
+} __packed;
+
+struct wmi_scan_chan_list_arg {
+	u32 n_channels;
+	struct wmi_channel_arg *channels;
+};
+
+enum wmi_bss_filter {
+	WMI_BSS_FILTER_NONE = 0,        /* no beacons forwarded */
+	WMI_BSS_FILTER_ALL,             /* all beacons forwarded */
+	WMI_BSS_FILTER_PROFILE,         /* only beacons matching profile */
+	WMI_BSS_FILTER_ALL_BUT_PROFILE, /* all but beacons matching profile */
+	WMI_BSS_FILTER_CURRENT_BSS,     /* only beacons matching current BSS */
+	WMI_BSS_FILTER_ALL_BUT_BSS,     /* all but beacons matching BSS */
+	WMI_BSS_FILTER_PROBED_SSID,     /* beacons matching probed ssid */
+	WMI_BSS_FILTER_LAST_BSS,        /* marker only */
+};
+
+enum wmi_scan_event_type {
+	WMI_SCAN_EVENT_STARTED         = 0x1,
+	WMI_SCAN_EVENT_COMPLETED       = 0x2,
+	WMI_SCAN_EVENT_BSS_CHANNEL     = 0x4,
+	WMI_SCAN_EVENT_FOREIGN_CHANNEL = 0x8,
+	WMI_SCAN_EVENT_DEQUEUED        = 0x10,
+	WMI_SCAN_EVENT_PREEMPTED       = 0x20, /* possibly by high-prio scan */
+	WMI_SCAN_EVENT_START_FAILED    = 0x40,
+	WMI_SCAN_EVENT_RESTARTED       = 0x80,
+	WMI_SCAN_EVENT_MAX             = 0x8000
+};
+
+enum wmi_scan_completion_reason {
+	WMI_SCAN_REASON_COMPLETED,
+	WMI_SCAN_REASON_CANCELLED,
+	WMI_SCAN_REASON_PREEMPTED,
+	WMI_SCAN_REASON_TIMEDOUT,
+	WMI_SCAN_REASON_MAX,
+};
+
+struct wmi_scan_event {
+	__le32 event_type; /* %WMI_SCAN_EVENT_ */
+	__le32 reason; /* %WMI_SCAN_REASON_ */
+	__le32 channel_freq; /* only valid for WMI_SCAN_EVENT_FOREIGN_CHANNEL */
+	__le32 scan_req_id;
+	__le32 scan_id;
+	__le32 vdev_id;
+} __packed;
+
+/*
+ * This defines how much headroom is kept in the
+ * receive frame between the descriptor and the
+ * payload, in order for the WMI PHY error and
+ * management handler to insert header contents.
+ *
+ * This is in bytes.
+ */
+#define WMI_MGMT_RX_HDR_HEADROOM    52
+
+/*
+ * This event will be used for sending scan results
+ * as well as rx mgmt frames to the host. The rx buffer
+ * will be sent as part of this WMI event. It would be a
+ * good idea to pass all the fields in the RX status
+ * descriptor up to the host.
+ */
+struct wmi_mgmt_rx_hdr {
+	__le32 channel;
+	__le32 snr;
+	__le32 rate;
+	__le32 phy_mode;
+	__le32 buf_len;
+	__le32 status; /* %WMI_RX_STATUS_ */
+} __packed;
+
+struct wmi_mgmt_rx_event {
+	struct wmi_mgmt_rx_hdr hdr;
+	u8 buf[0];
+} __packed;
+
+#define WMI_RX_STATUS_OK			0x00
+#define WMI_RX_STATUS_ERR_CRC			0x01
+#define WMI_RX_STATUS_ERR_DECRYPT		0x08
+#define WMI_RX_STATUS_ERR_MIC			0x10
+#define WMI_RX_STATUS_ERR_KEY_CACHE_MISS	0x20
+
+struct wmi_single_phyerr_rx_hdr {
+	/* TSF timestamp */
+	__le32 tsf_timestamp;
+
+	/*
+	 * Current freq1, freq2
+	 *
+	 * [7:0]:    freq1[lo]
+	 * [15:8] :   freq1[hi]
+	 * [23:16]:   freq2[lo]
+	 * [31:24]:   freq2[hi]
+	 */
+	__le16 freq1;
+	__le16 freq2;
+
+	/*
+	 * Combined RSSI over all chains and channel width for this PHY error
+	 *
+	 * [7:0]: RSSI combined
+	 * [15:8]: Channel width (MHz)
+	 * [23:16]: PHY error code
+	 * [24:16]: reserved (future use)
+	 */
+	u8 rssi_combined;
+	u8 chan_width_mhz;
+	u8 phy_err_code;
+	u8 rsvd0;
+
+	/*
+	 * RSSI on chain 0 through 3
+	 *
+	 * This is formatted the same as the PPDU_START RX descriptor
+	 * field:
+	 *
+	 * [7:0]:   pri20
+	 * [15:8]:  sec20
+	 * [23:16]: sec40
+	 * [31:24]: sec80
+	 */
+
+	__le32 rssi_chain0;
+	__le32 rssi_chain1;
+	__le32 rssi_chain2;
+	__le32 rssi_chain3;
+
+	/*
+	 * Last calibrated NF value for chain 0 through 3
+	 *
+	 * nf_list_1:
+	 *
+	 * + [15:0] - chain 0
+	 * + [31:16] - chain 1
+	 *
+	 * nf_list_2:
+	 *
+	 * + [15:0] - chain 2
+	 * + [31:16] - chain 3
+	 */
+	__le32 nf_list_1;
+	__le32 nf_list_2;
+
+
+	/* Length of the frame */
+	__le32 buf_len;
+} __packed;
+
+struct wmi_single_phyerr_rx_event {
+	/* Phy error event header */
+	struct wmi_single_phyerr_rx_hdr hdr;
+	/* frame buffer */
+	u8 bufp[0];
+} __packed;
+
+struct wmi_comb_phyerr_rx_hdr {
+	/* Phy error phy error count */
+	__le32 num_phyerr_events;
+	__le32 tsf_l32;
+	__le32 tsf_u32;
+} __packed;
+
+struct wmi_comb_phyerr_rx_event {
+	/* Phy error phy error count */
+	struct wmi_comb_phyerr_rx_hdr hdr;
+	/*
+	 * frame buffer - contains multiple payloads in the order:
+	 *                    header - payload, header - payload...
+	 *  (The header is of type: wmi_single_phyerr_rx_hdr)
+	 */
+	u8 bufp[0];
+} __packed;
+
+struct wmi_mgmt_tx_hdr {
+	__le32 vdev_id;
+	struct wmi_mac_addr peer_macaddr;
+	__le32 tx_rate;
+	__le32 tx_power;
+	__le32 buf_len;
+} __packed;
+
+struct wmi_mgmt_tx_cmd {
+	struct wmi_mgmt_tx_hdr hdr;
+	u8 buf[0];
+} __packed;
+
+struct wmi_echo_event {
+	__le32 value;
+} __packed;
+
+struct wmi_echo_cmd {
+	__le32 value;
+} __packed;
+
+
+struct wmi_pdev_set_regdomain_cmd {
+	__le32 reg_domain;
+	__le32 reg_domain_2G;
+	__le32 reg_domain_5G;
+	__le32 conformance_test_limit_2G;
+	__le32 conformance_test_limit_5G;
+} __packed;
+
+/* Command to set/unset chip in quiet mode */
+struct wmi_pdev_set_quiet_cmd {
+	/* period in TUs */
+	__le32 period;
+
+	/* duration in TUs */
+	__le32 duration;
+
+	/* offset in TUs */
+	__le32 next_start;
+
+	/* enable/disable */
+	__le32 enabled;
+} __packed;
+
+
+/*
+ * 802.11g protection mode.
+ */
+enum ath10k_protmode {
+	ATH10K_PROT_NONE     = 0,    /* no protection */
+	ATH10K_PROT_CTSONLY  = 1,    /* CTS to self */
+	ATH10K_PROT_RTSCTS   = 2,    /* RTS-CTS */
+};
+
+enum wmi_beacon_gen_mode {
+	WMI_BEACON_STAGGERED_MODE = 0,
+	WMI_BEACON_BURST_MODE = 1
+};
+
+enum wmi_csa_event_ies_present_flag {
+	WMI_CSA_IE_PRESENT = 0x00000001,
+	WMI_XCSA_IE_PRESENT = 0x00000002,
+	WMI_WBW_IE_PRESENT = 0x00000004,
+	WMI_CSWARP_IE_PRESENT = 0x00000008,
+};
+
+/* wmi CSA receive event from beacon frame */
+struct wmi_csa_event {
+	__le32 i_fc_dur;
+	/* Bit 0-15: FC */
+	/* Bit 16-31: DUR */
+	struct wmi_mac_addr i_addr1;
+	struct wmi_mac_addr i_addr2;
+	__le32 csa_ie[2];
+	__le32 xcsa_ie[2];
+	__le32 wb_ie[2];
+	__le32 cswarp_ie;
+	__le32 ies_present_flag; /* wmi_csa_event_ies_present_flag */
+} __packed;
+
+/* the definition of different PDEV parameters */
+#define PDEV_DEFAULT_STATS_UPDATE_PERIOD    500
+#define VDEV_DEFAULT_STATS_UPDATE_PERIOD    500
+#define PEER_DEFAULT_STATS_UPDATE_PERIOD    500
+
+enum wmi_pdev_param {
+	/* TX chian mask */
+	WMI_PDEV_PARAM_TX_CHAIN_MASK = 0x1,
+	/* RX chian mask */
+	WMI_PDEV_PARAM_RX_CHAIN_MASK,
+	/* TX power limit for 2G Radio */
+	WMI_PDEV_PARAM_TXPOWER_LIMIT2G,
+	/* TX power limit for 5G Radio */
+	WMI_PDEV_PARAM_TXPOWER_LIMIT5G,
+	/* TX power scale */
+	WMI_PDEV_PARAM_TXPOWER_SCALE,
+	/* Beacon generation mode . 0: host, 1: target   */
+	WMI_PDEV_PARAM_BEACON_GEN_MODE,
+	/* Beacon generation mode . 0: staggered 1: bursted   */
+	WMI_PDEV_PARAM_BEACON_TX_MODE,
+	/*
+	 * Resource manager off chan mode .
+	 * 0: turn off off chan mode. 1: turn on offchan mode
+	 */
+	WMI_PDEV_PARAM_RESMGR_OFFCHAN_MODE,
+	/*
+	 * Protection mode:
+	 * 0: no protection 1:use CTS-to-self 2: use RTS/CTS
+	 */
+	WMI_PDEV_PARAM_PROTECTION_MODE,
+	/* Dynamic bandwidth 0: disable 1: enable */
+	WMI_PDEV_PARAM_DYNAMIC_BW,
+	/* Non aggregrate/ 11g sw retry threshold.0-disable */
+	WMI_PDEV_PARAM_NON_AGG_SW_RETRY_TH,
+	/* aggregrate sw retry threshold. 0-disable*/
+	WMI_PDEV_PARAM_AGG_SW_RETRY_TH,
+	/* Station kickout threshold (non of consecutive failures).0-disable */
+	WMI_PDEV_PARAM_STA_KICKOUT_TH,
+	/* Aggerate size scaling configuration per AC */
+	WMI_PDEV_PARAM_AC_AGGRSIZE_SCALING,
+	/* LTR enable */
+	WMI_PDEV_PARAM_LTR_ENABLE,
+	/* LTR latency for BE, in us */
+	WMI_PDEV_PARAM_LTR_AC_LATENCY_BE,
+	/* LTR latency for BK, in us */
+	WMI_PDEV_PARAM_LTR_AC_LATENCY_BK,
+	/* LTR latency for VI, in us */
+	WMI_PDEV_PARAM_LTR_AC_LATENCY_VI,
+	/* LTR latency for VO, in us  */
+	WMI_PDEV_PARAM_LTR_AC_LATENCY_VO,
+	/* LTR AC latency timeout, in ms */
+	WMI_PDEV_PARAM_LTR_AC_LATENCY_TIMEOUT,
+	/* LTR platform latency override, in us */
+	WMI_PDEV_PARAM_LTR_SLEEP_OVERRIDE,
+	/* LTR-RX override, in us */
+	WMI_PDEV_PARAM_LTR_RX_OVERRIDE,
+	/* Tx activity timeout for LTR, in us */
+	WMI_PDEV_PARAM_LTR_TX_ACTIVITY_TIMEOUT,
+	/* L1SS state machine enable */
+	WMI_PDEV_PARAM_L1SS_ENABLE,
+	/* Deep sleep state machine enable */
+	WMI_PDEV_PARAM_DSLEEP_ENABLE,
+	/* RX buffering flush enable */
+	WMI_PDEV_PARAM_PCIELP_TXBUF_FLUSH,
+	/* RX buffering matermark */
+	WMI_PDEV_PARAM_PCIELP_TXBUF_WATERMARK,
+	/* RX buffering timeout enable */
+	WMI_PDEV_PARAM_PCIELP_TXBUF_TMO_EN,
+	/* RX buffering timeout value */
+	WMI_PDEV_PARAM_PCIELP_TXBUF_TMO_VALUE,
+	/* pdev level stats update period in ms */
+	WMI_PDEV_PARAM_PDEV_STATS_UPDATE_PERIOD,
+	/* vdev level stats update period in ms */
+	WMI_PDEV_PARAM_VDEV_STATS_UPDATE_PERIOD,
+	/* peer level stats update period in ms */
+	WMI_PDEV_PARAM_PEER_STATS_UPDATE_PERIOD,
+	/* beacon filter status update period */
+	WMI_PDEV_PARAM_BCNFLT_STATS_UPDATE_PERIOD,
+	/* QOS Mgmt frame protection MFP/PMF 0: disable, 1: enable */
+	WMI_PDEV_PARAM_PMF_QOS,
+	/* Access category on which ARP frames are sent */
+	WMI_PDEV_PARAM_ARP_AC_OVERRIDE,
+	/* DCS configuration */
+	WMI_PDEV_PARAM_DCS,
+	/* Enable/Disable ANI on target */
+	WMI_PDEV_PARAM_ANI_ENABLE,
+	/* configure the ANI polling period */
+	WMI_PDEV_PARAM_ANI_POLL_PERIOD,
+	/* configure the ANI listening period */
+	WMI_PDEV_PARAM_ANI_LISTEN_PERIOD,
+	/* configure OFDM immunity level */
+	WMI_PDEV_PARAM_ANI_OFDM_LEVEL,
+	/* configure CCK immunity level */
+	WMI_PDEV_PARAM_ANI_CCK_LEVEL,
+	/* Enable/Disable CDD for 1x1 STAs in rate control module */
+	WMI_PDEV_PARAM_DYNTXCHAIN,
+	/* Enable/Disable proxy STA */
+	WMI_PDEV_PARAM_PROXY_STA,
+	/* Enable/Disable low power state when all VDEVs are inactive/idle. */
+	WMI_PDEV_PARAM_IDLE_PS_CONFIG,
+	/* Enable/Disable power gating sleep */
+	WMI_PDEV_PARAM_POWER_GATING_SLEEP,
+};
+
+struct wmi_pdev_set_param_cmd {
+	__le32 param_id;
+	__le32 param_value;
+} __packed;
+
+struct wmi_pdev_get_tpc_config_cmd {
+	/* parameter   */
+	__le32 param;
+} __packed;
+
+#define WMI_TPC_RATE_MAX		160
+#define WMI_TPC_TX_N_CHAIN		4
+
+enum wmi_tpc_config_event_flag {
+	WMI_TPC_CONFIG_EVENT_FLAG_TABLE_CDD	= 0x1,
+	WMI_TPC_CONFIG_EVENT_FLAG_TABLE_STBC	= 0x2,
+	WMI_TPC_CONFIG_EVENT_FLAG_TABLE_TXBF	= 0x4,
+};
+
+struct wmi_pdev_tpc_config_event {
+	__le32 reg_domain;
+	__le32 chan_freq;
+	__le32 phy_mode;
+	__le32 twice_antenna_reduction;
+	__le32 twice_max_rd_power;
+	s32 twice_antenna_gain;
+	__le32 power_limit;
+	__le32 rate_max;
+	__le32 num_tx_chain;
+	__le32 ctl;
+	__le32 flags;
+	s8 max_reg_allow_pow[WMI_TPC_TX_N_CHAIN];
+	s8 max_reg_allow_pow_agcdd[WMI_TPC_TX_N_CHAIN][WMI_TPC_TX_N_CHAIN];
+	s8 max_reg_allow_pow_agstbc[WMI_TPC_TX_N_CHAIN][WMI_TPC_TX_N_CHAIN];
+	s8 max_reg_allow_pow_agtxbf[WMI_TPC_TX_N_CHAIN][WMI_TPC_TX_N_CHAIN];
+	u8 rates_array[WMI_TPC_RATE_MAX];
+} __packed;
+
+/* Transmit power scale factor. */
+enum wmi_tp_scale {
+	WMI_TP_SCALE_MAX    = 0,	/* no scaling (default) */
+	WMI_TP_SCALE_50     = 1,	/* 50% of max (-3 dBm) */
+	WMI_TP_SCALE_25     = 2,	/* 25% of max (-6 dBm) */
+	WMI_TP_SCALE_12     = 3,	/* 12% of max (-9 dBm) */
+	WMI_TP_SCALE_MIN    = 4,	/* min, but still on   */
+	WMI_TP_SCALE_SIZE   = 5,	/* max num of enum     */
+};
+
+struct wmi_set_channel_cmd {
+	/* channel (only frequency and mode info are used) */
+	struct wmi_channel chan;
+} __packed;
+
+struct wmi_pdev_chanlist_update_event {
+	/* number of channels */
+	__le32 num_chan;
+	/* array of channels */
+	struct wmi_channel channel_list[1];
+} __packed;
+
+#define WMI_MAX_DEBUG_MESG (sizeof(u32) * 32)
+
+struct wmi_debug_mesg_event {
+	/* message buffer, NULL terminated */
+	char bufp[WMI_MAX_DEBUG_MESG];
+} __packed;
+
+enum {
+	/* P2P device */
+	VDEV_SUBTYPE_P2PDEV = 0,
+	/* P2P client */
+	VDEV_SUBTYPE_P2PCLI,
+	/* P2P GO */
+	VDEV_SUBTYPE_P2PGO,
+	/* BT3.0 HS */
+	VDEV_SUBTYPE_BT,
+};
+
+struct wmi_pdev_set_channel_cmd {
+	/* idnore power , only use flags , mode and freq */
+	struct wmi_channel chan;
+} __packed;
+
+/* Customize the DSCP (bit) to TID (0-7) mapping for QOS */
+#define WMI_DSCP_MAP_MAX    (64)
+struct wmi_pdev_set_dscp_tid_map_cmd {
+	/* map indicating DSCP to TID conversion */
+	__le32 dscp_to_tid_map[WMI_DSCP_MAP_MAX];
+} __packed;
+
+enum mcast_bcast_rate_id {
+	WMI_SET_MCAST_RATE,
+	WMI_SET_BCAST_RATE
+};
+
+struct mcast_bcast_rate {
+	enum mcast_bcast_rate_id rate_id;
+	__le32 rate;
+} __packed;
+
+struct wmi_wmm_params {
+	__le32 cwmin;
+	__le32 cwmax;
+	__le32 aifs;
+	__le32 txop;
+	__le32 acm;
+	__le32 no_ack;
+} __packed;
+
+struct wmi_pdev_set_wmm_params {
+	struct wmi_wmm_params ac_be;
+	struct wmi_wmm_params ac_bk;
+	struct wmi_wmm_params ac_vi;
+	struct wmi_wmm_params ac_vo;
+} __packed;
+
+struct wmi_wmm_params_arg {
+	u32 cwmin;
+	u32 cwmax;
+	u32 aifs;
+	u32 txop;
+	u32 acm;
+	u32 no_ack;
+};
+
+struct wmi_pdev_set_wmm_params_arg {
+	struct wmi_wmm_params_arg ac_be;
+	struct wmi_wmm_params_arg ac_bk;
+	struct wmi_wmm_params_arg ac_vi;
+	struct wmi_wmm_params_arg ac_vo;
+};
+
+struct wal_dbg_tx_stats {
+	/* Num HTT cookies queued to dispatch list */
+	__le32 comp_queued;
+
+	/* Num HTT cookies dispatched */
+	__le32 comp_delivered;
+
+	/* Num MSDU queued to WAL */
+	__le32 msdu_enqued;
+
+	/* Num MPDU queue to WAL */
+	__le32 mpdu_enqued;
+
+	/* Num MSDUs dropped by WMM limit */
+	__le32 wmm_drop;
+
+	/* Num Local frames queued */
+	__le32 local_enqued;
+
+	/* Num Local frames done */
+	__le32 local_freed;
+
+	/* Num queued to HW */
+	__le32 hw_queued;
+
+	/* Num PPDU reaped from HW */
+	__le32 hw_reaped;
+
+	/* Num underruns */
+	__le32 underrun;
+
+	/* Num PPDUs cleaned up in TX abort */
+	__le32 tx_abort;
+
+	/* Num MPDUs requed by SW */
+	__le32 mpdus_requed;
+
+	/* excessive retries */
+	__le32 tx_ko;
+
+	/* data hw rate code */
+	__le32 data_rc;
+
+	/* Scheduler self triggers */
+	__le32 self_triggers;
+
+	/* frames dropped due to excessive sw retries */
+	__le32 sw_retry_failure;
+
+	/* illegal rate phy errors  */
+	__le32 illgl_rate_phy_err;
+
+	/* wal pdev continous xretry */
+	__le32 pdev_cont_xretry;
+
+	/* wal pdev continous xretry */
+	__le32 pdev_tx_timeout;
+
+	/* wal pdev resets  */
+	__le32 pdev_resets;
+
+	__le32 phy_underrun;
+
+	/* MPDU is more than txop limit */
+	__le32 txop_ovf;
+} __packed;
+
+struct wal_dbg_rx_stats {
+	/* Cnts any change in ring routing mid-ppdu */
+	__le32 mid_ppdu_route_change;
+
+	/* Total number of statuses processed */
+	__le32 status_rcvd;
+
+	/* Extra frags on rings 0-3 */
+	__le32 r0_frags;
+	__le32 r1_frags;
+	__le32 r2_frags;
+	__le32 r3_frags;
+
+	/* MSDUs / MPDUs delivered to HTT */
+	__le32 htt_msdus;
+	__le32 htt_mpdus;
+
+	/* MSDUs / MPDUs delivered to local stack */
+	__le32 loc_msdus;
+	__le32 loc_mpdus;
+
+	/* AMSDUs that have more MSDUs than the status ring size */
+	__le32 oversize_amsdu;
+
+	/* Number of PHY errors */
+	__le32 phy_errs;
+
+	/* Number of PHY errors drops */
+	__le32 phy_err_drop;
+
+	/* Number of mpdu errors - FCS, MIC, ENC etc. */
+	__le32 mpdu_errs;
+} __packed;
+
+struct wal_dbg_peer_stats {
+	/* REMOVE THIS ONCE REAL PEER STAT COUNTERS ARE ADDED */
+	__le32 dummy;
+} __packed;
+
+struct wal_dbg_stats {
+	struct wal_dbg_tx_stats tx;
+	struct wal_dbg_rx_stats rx;
+	struct wal_dbg_peer_stats peer;
+} __packed;
+
+enum wmi_stats_id {
+	WMI_REQUEST_PEER_STAT	= 0x01,
+	WMI_REQUEST_AP_STAT	= 0x02
+};
+
+struct wmi_request_stats_cmd {
+	__le32 stats_id;
+
+	/*
+	 * Space to add parameters like
+	 * peer mac addr
+	 */
+} __packed;
+
+/* Suspend option */
+enum {
+	/* suspend */
+	WMI_PDEV_SUSPEND,
+
+	/* suspend and disable all interrupts */
+	WMI_PDEV_SUSPEND_AND_DISABLE_INTR,
+};
+
+struct wmi_pdev_suspend_cmd {
+	/* suspend option sent to target */
+	__le32 suspend_opt;
+} __packed;
+
+struct wmi_stats_event {
+	__le32 stats_id; /* %WMI_REQUEST_ */
+	/*
+	 * number of pdev stats event structures
+	 * (wmi_pdev_stats) 0 or 1
+	 */
+	__le32 num_pdev_stats;
+	/*
+	 * number of vdev stats event structures
+	 * (wmi_vdev_stats) 0 or max vdevs
+	 */
+	__le32 num_vdev_stats;
+	/*
+	 * number of peer stats event structures
+	 * (wmi_peer_stats) 0 or max peers
+	 */
+	__le32 num_peer_stats;
+	__le32 num_bcnflt_stats;
+	/*
+	 * followed by
+	 *   num_pdev_stats * size of(struct wmi_pdev_stats)
+	 *   num_vdev_stats * size of(struct wmi_vdev_stats)
+	 *   num_peer_stats * size of(struct wmi_peer_stats)
+	 *
+	 *  By having a zero sized array, the pointer to data area
+	 *  becomes available without increasing the struct size
+	 */
+	u8 data[0];
+} __packed;
+
+/*
+ * PDEV statistics
+ * TODO: add all PDEV stats here
+ */
+struct wmi_pdev_stats {
+	__le32 chan_nf;        /* Channel noise floor */
+	__le32 tx_frame_count; /* TX frame count */
+	__le32 rx_frame_count; /* RX frame count */
+	__le32 rx_clear_count; /* rx clear count */
+	__le32 cycle_count;    /* cycle count */
+	__le32 phy_err_count;  /* Phy error count */
+	__le32 chan_tx_pwr;    /* channel tx power */
+	struct wal_dbg_stats wal; /* WAL dbg stats */
+} __packed;
+
+/*
+ * VDEV statistics
+ * TODO: add all VDEV stats here
+ */
+struct wmi_vdev_stats {
+	__le32 vdev_id;
+} __packed;
+
+/*
+ * peer statistics.
+ * TODO: add more stats
+ */
+struct wmi_peer_stats {
+	struct wmi_mac_addr peer_macaddr;
+	__le32 peer_rssi;
+	__le32 peer_tx_rate;
+} __packed;
+
+struct wmi_vdev_create_cmd {
+	__le32 vdev_id;
+	__le32 vdev_type;
+	__le32 vdev_subtype;
+	struct wmi_mac_addr vdev_macaddr;
+} __packed;
+
+enum wmi_vdev_type {
+	WMI_VDEV_TYPE_AP      = 1,
+	WMI_VDEV_TYPE_STA     = 2,
+	WMI_VDEV_TYPE_IBSS    = 3,
+	WMI_VDEV_TYPE_MONITOR = 4,
+};
+
+enum wmi_vdev_subtype {
+	WMI_VDEV_SUBTYPE_NONE       = 0,
+	WMI_VDEV_SUBTYPE_P2P_DEVICE = 1,
+	WMI_VDEV_SUBTYPE_P2P_CLIENT = 2,
+	WMI_VDEV_SUBTYPE_P2P_GO     = 3,
+};
+
+/* values for vdev_subtype */
+
+/* values for vdev_start_request flags */
+/*
+ * Indicates that AP VDEV uses hidden ssid. only valid for
+ *  AP/GO */
+#define WMI_VDEV_START_HIDDEN_SSID  (1<<0)
+/*
+ * Indicates if robust management frame/management frame
+ *  protection is enabled. For GO/AP vdevs, it indicates that
+ *  it may support station/client associations with RMF enabled.
+ *  For STA/client vdevs, it indicates that sta will
+ *  associate with AP with RMF enabled. */
+#define WMI_VDEV_START_PMF_ENABLED  (1<<1)
+
+struct wmi_p2p_noa_descriptor {
+	__le32 type_count; /* 255: continuous schedule, 0: reserved */
+	__le32 duration;  /* Absent period duration in micro seconds */
+	__le32 interval;   /* Absent period interval in micro seconds */
+	__le32 start_time; /* 32 bit tsf time when in starts */
+} __packed;
+
+struct wmi_vdev_start_request_cmd {
+	/* WMI channel */
+	struct wmi_channel chan;
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+	/* requestor id identifying the caller module */
+	__le32 requestor_id;
+	/* beacon interval from received beacon */
+	__le32 beacon_interval;
+	/* DTIM Period from the received beacon */
+	__le32 dtim_period;
+	/* Flags */
+	__le32 flags;
+	/* ssid field. Only valid for AP/GO/IBSS/BTAmp VDEV type. */
+	struct wmi_ssid ssid;
+	/* beacon/probe reponse xmit rate. Applicable for SoftAP. */
+	__le32 bcn_tx_rate;
+	/* beacon/probe reponse xmit power. Applicable for SoftAP. */
+	__le32 bcn_tx_power;
+	/* number of p2p NOA descriptor(s) from scan entry */
+	__le32 num_noa_descriptors;
+	/*
+	 * Disable H/W ack. This used by WMI_VDEV_RESTART_REQUEST_CMDID.
+	 * During CAC, Our HW shouldn't ack ditected frames
+	 */
+	__le32 disable_hw_ack;
+	/* actual p2p NOA descriptor from scan entry */
+	struct wmi_p2p_noa_descriptor noa_descriptors[2];
+} __packed;
+
+struct wmi_vdev_restart_request_cmd {
+	struct wmi_vdev_start_request_cmd vdev_start_request_cmd;
+} __packed;
+
+struct wmi_vdev_start_request_arg {
+	u32 vdev_id;
+	struct wmi_channel_arg channel;
+	u32 bcn_intval;
+	u32 dtim_period;
+	u8 *ssid;
+	u32 ssid_len;
+	u32 bcn_tx_rate;
+	u32 bcn_tx_power;
+	bool disable_hw_ack;
+	bool hidden_ssid;
+	bool pmf_enabled;
+};
+
+struct wmi_vdev_delete_cmd {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+} __packed;
+
+struct wmi_vdev_up_cmd {
+	__le32 vdev_id;
+	__le32 vdev_assoc_id;
+	struct wmi_mac_addr vdev_bssid;
+} __packed;
+
+struct wmi_vdev_stop_cmd {
+	__le32 vdev_id;
+} __packed;
+
+struct wmi_vdev_down_cmd {
+	__le32 vdev_id;
+} __packed;
+
+struct wmi_vdev_standby_response_cmd {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+} __packed;
+
+struct wmi_vdev_resume_response_cmd {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+} __packed;
+
+struct wmi_vdev_set_param_cmd {
+	__le32 vdev_id;
+	__le32 param_id;
+	__le32 param_value;
+} __packed;
+
+#define WMI_MAX_KEY_INDEX   3
+#define WMI_MAX_KEY_LEN     32
+
+#define WMI_KEY_PAIRWISE 0x00
+#define WMI_KEY_GROUP    0x01
+#define WMI_KEY_TX_USAGE 0x02 /* default tx key - static wep */
+
+struct wmi_key_seq_counter {
+	__le32 key_seq_counter_l;
+	__le32 key_seq_counter_h;
+} __packed;
+
+#define WMI_CIPHER_NONE     0x0 /* clear key */
+#define WMI_CIPHER_WEP      0x1
+#define WMI_CIPHER_TKIP     0x2
+#define WMI_CIPHER_AES_OCB  0x3
+#define WMI_CIPHER_AES_CCM  0x4
+#define WMI_CIPHER_WAPI     0x5
+#define WMI_CIPHER_CKIP     0x6
+#define WMI_CIPHER_AES_CMAC 0x7
+
+struct wmi_vdev_install_key_cmd {
+	__le32 vdev_id;
+	struct wmi_mac_addr peer_macaddr;
+	__le32 key_idx;
+	__le32 key_flags;
+	__le32 key_cipher; /* %WMI_CIPHER_ */
+	struct wmi_key_seq_counter key_rsc_counter;
+	struct wmi_key_seq_counter key_global_rsc_counter;
+	struct wmi_key_seq_counter key_tsc_counter;
+	u8 wpi_key_rsc_counter[16];
+	u8 wpi_key_tsc_counter[16];
+	__le32 key_len;
+	__le32 key_txmic_len;
+	__le32 key_rxmic_len;
+
+	/* contains key followed by tx mic followed by rx mic */
+	u8 key_data[0];
+} __packed;
+
+struct wmi_vdev_install_key_arg {
+	u32 vdev_id;
+	const u8 *macaddr;
+	u32 key_idx;
+	u32 key_flags;
+	u32 key_cipher;
+	u32 key_len;
+	u32 key_txmic_len;
+	u32 key_rxmic_len;
+	const void *key_data;
+};
+
+/* Preamble types to be used with VDEV fixed rate configuration */
+enum wmi_rate_preamble {
+	WMI_RATE_PREAMBLE_OFDM,
+	WMI_RATE_PREAMBLE_CCK,
+	WMI_RATE_PREAMBLE_HT,
+	WMI_RATE_PREAMBLE_VHT,
+};
+
+/* Value to disable fixed rate setting */
+#define WMI_FIXED_RATE_NONE    (0xff)
+
+/* the definition of different VDEV parameters */
+enum wmi_vdev_param {
+	/* RTS Threshold */
+	WMI_VDEV_PARAM_RTS_THRESHOLD = 0x1,
+	/* Fragmentation threshold */
+	WMI_VDEV_PARAM_FRAGMENTATION_THRESHOLD,
+	/* beacon interval in TUs */
+	WMI_VDEV_PARAM_BEACON_INTERVAL,
+	/* Listen interval in TUs */
+	WMI_VDEV_PARAM_LISTEN_INTERVAL,
+	/* muticast rate in Mbps */
+	WMI_VDEV_PARAM_MULTICAST_RATE,
+	/* management frame rate in Mbps */
+	WMI_VDEV_PARAM_MGMT_TX_RATE,
+	/* slot time (long vs short) */
+	WMI_VDEV_PARAM_SLOT_TIME,
+	/* preamble (long vs short) */
+	WMI_VDEV_PARAM_PREAMBLE,
+	/* SWBA time (time before tbtt in msec) */
+	WMI_VDEV_PARAM_SWBA_TIME,
+	/* time period for updating VDEV stats */
+	WMI_VDEV_STATS_UPDATE_PERIOD,
+	/* age out time in msec for frames queued for station in power save */
+	WMI_VDEV_PWRSAVE_AGEOUT_TIME,
+	/*
+	 * Host SWBA interval (time in msec before tbtt for SWBA event
+	 * generation).
+	 */
+	WMI_VDEV_HOST_SWBA_INTERVAL,
+	/* DTIM period (specified in units of num beacon intervals) */
+	WMI_VDEV_PARAM_DTIM_PERIOD,
+	/*
+	 * scheduler air time limit for this VDEV. used by off chan
+	 * scheduler.
+	 */
+	WMI_VDEV_OC_SCHEDULER_AIR_TIME_LIMIT,
+	/* enable/dsiable WDS for this VDEV  */
+	WMI_VDEV_PARAM_WDS,
+	/* ATIM Window */
+	WMI_VDEV_PARAM_ATIM_WINDOW,
+	/* BMISS max */
+	WMI_VDEV_PARAM_BMISS_COUNT_MAX,
+	/* BMISS first time */
+	WMI_VDEV_PARAM_BMISS_FIRST_BCNT,
+	/* BMISS final time */
+	WMI_VDEV_PARAM_BMISS_FINAL_BCNT,
+	/* WMM enables/disabled */
+	WMI_VDEV_PARAM_FEATURE_WMM,
+	/* Channel width */
+	WMI_VDEV_PARAM_CHWIDTH,
+	/* Channel Offset */
+	WMI_VDEV_PARAM_CHEXTOFFSET,
+	/* Disable HT Protection */
+	WMI_VDEV_PARAM_DISABLE_HTPROTECTION,
+	/* Quick STA Kickout */
+	WMI_VDEV_PARAM_STA_QUICKKICKOUT,
+	/* Rate to be used with Management frames */
+	WMI_VDEV_PARAM_MGMT_RATE,
+	/* Protection Mode */
+	WMI_VDEV_PARAM_PROTECTION_MODE,
+	/* Fixed rate setting */
+	WMI_VDEV_PARAM_FIXED_RATE,
+	/* Short GI Enable/Disable */
+	WMI_VDEV_PARAM_SGI,
+	/* Enable LDPC */
+	WMI_VDEV_PARAM_LDPC,
+	/* Enable Tx STBC */
+	WMI_VDEV_PARAM_TX_STBC,
+	/* Enable Rx STBC */
+	WMI_VDEV_PARAM_RX_STBC,
+	/* Intra BSS forwarding  */
+	WMI_VDEV_PARAM_INTRA_BSS_FWD,
+	/* Setting Default xmit key for Vdev */
+	WMI_VDEV_PARAM_DEF_KEYID,
+	/* NSS width */
+	WMI_VDEV_PARAM_NSS,
+	/* Set the custom rate for the broadcast data frames */
+	WMI_VDEV_PARAM_BCAST_DATA_RATE,
+	/* Set the custom rate (rate-code) for multicast data frames */
+	WMI_VDEV_PARAM_MCAST_DATA_RATE,
+	/* Tx multicast packet indicate Enable/Disable */
+	WMI_VDEV_PARAM_MCAST_INDICATE,
+	/* Tx DHCP packet indicate Enable/Disable */
+	WMI_VDEV_PARAM_DHCP_INDICATE,
+	/* Enable host inspection of Tx unicast packet to unknown destination */
+	WMI_VDEV_PARAM_UNKNOWN_DEST_INDICATE,
+
+	/* The minimum amount of time AP begins to consider STA inactive */
+	WMI_VDEV_PARAM_AP_KEEPALIVE_MIN_IDLE_INACTIVE_TIME_SECS,
+
+	/*
+	 * An associated STA is considered inactive when there is no recent
+	 * TX/RX activity and no downlink frames are buffered for it. Once a
+	 * STA exceeds the maximum idle inactive time, the AP will send an
+	 * 802.11 data-null as a keep alive to verify the STA is still
+	 * associated. If the STA does ACK the data-null, or if the data-null
+	 * is buffered and the STA does not retrieve it, the STA will be
+	 * considered unresponsive
+	 * (see WMI_VDEV_AP_KEEPALIVE_MAX_UNRESPONSIVE_TIME_SECS).
+	 */
+	WMI_VDEV_PARAM_AP_KEEPALIVE_MAX_IDLE_INACTIVE_TIME_SECS,
+
+	/*
+	 * An associated STA is considered unresponsive if there is no recent
+	 * TX/RX activity and downlink frames are buffered for it. Once a STA
+	 * exceeds the maximum unresponsive time, the AP will send a
+	 * WMI_STA_KICKOUT event to the host so the STA can be deleted. */
+	WMI_VDEV_PARAM_AP_KEEPALIVE_MAX_UNRESPONSIVE_TIME_SECS,
+
+	/* Enable NAWDS : MCAST INSPECT Enable, NAWDS Flag set */
+	WMI_VDEV_PARAM_AP_ENABLE_NAWDS,
+	/* Enable/Disable RTS-CTS */
+	WMI_VDEV_PARAM_ENABLE_RTSCTS,
+	/* Enable TXBFee/er */
+	WMI_VDEV_PARAM_TXBF,
+
+	/* Set packet power save */
+	WMI_VDEV_PARAM_PACKET_POWERSAVE,
+
+	/*
+	 * Drops un-encrypted packets if eceived in an encrypted connection
+	 * otherwise forwards to host.
+	 */
+	WMI_VDEV_PARAM_DROP_UNENCRY,
+
+	/*
+	 * Set the encapsulation type for frames.
+	 */
+	WMI_VDEV_PARAM_TX_ENCAP_TYPE,
+};
+
+/* slot time long */
+#define WMI_VDEV_SLOT_TIME_LONG		0x1
+/* slot time short */
+#define WMI_VDEV_SLOT_TIME_SHORT	0x2
+/* preablbe long */
+#define WMI_VDEV_PREAMBLE_LONG		0x1
+/* preablbe short */
+#define WMI_VDEV_PREAMBLE_SHORT		0x2
+
+enum wmi_start_event_param {
+	WMI_VDEV_RESP_START_EVENT = 0,
+	WMI_VDEV_RESP_RESTART_EVENT,
+};
+
+struct wmi_vdev_start_response_event {
+	__le32 vdev_id;
+	__le32 req_id;
+	__le32 resp_type; /* %WMI_VDEV_RESP_ */
+	__le32 status;
+} __packed;
+
+struct wmi_vdev_standby_req_event {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+} __packed;
+
+struct wmi_vdev_resume_req_event {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+} __packed;
+
+struct wmi_vdev_stopped_event {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+} __packed;
+
+/*
+ * common structure used for simple events
+ * (stopped, resume_req, standby response)
+ */
+struct wmi_vdev_simple_event {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+} __packed;
+
+/* VDEV start response status codes */
+/* VDEV succesfully started */
+#define WMI_INIFIED_VDEV_START_RESPONSE_STATUS_SUCCESS	0x0
+
+/* requested VDEV not found */
+#define WMI_INIFIED_VDEV_START_RESPONSE_INVALID_VDEVID	0x1
+
+/* unsupported VDEV combination */
+#define WMI_INIFIED_VDEV_START_RESPONSE_NOT_SUPPORTED	0x2
+
+/* Beacon processing related command and event structures */
+struct wmi_bcn_tx_hdr {
+	__le32 vdev_id;
+	__le32 tx_rate;
+	__le32 tx_power;
+	__le32 bcn_len;
+} __packed;
+
+struct wmi_bcn_tx_cmd {
+	struct wmi_bcn_tx_hdr hdr;
+	u8 *bcn[0];
+} __packed;
+
+struct wmi_bcn_tx_arg {
+	u32 vdev_id;
+	u32 tx_rate;
+	u32 tx_power;
+	u32 bcn_len;
+	const void *bcn;
+};
+
+/* Beacon filter */
+#define WMI_BCN_FILTER_ALL   0 /* Filter all beacons */
+#define WMI_BCN_FILTER_NONE  1 /* Pass all beacons */
+#define WMI_BCN_FILTER_RSSI  2 /* Pass Beacons RSSI >= RSSI threshold */
+#define WMI_BCN_FILTER_BSSID 3 /* Pass Beacons with matching BSSID */
+#define WMI_BCN_FILTER_SSID  4 /* Pass Beacons with matching SSID */
+
+struct wmi_bcn_filter_rx_cmd {
+	/* Filter ID */
+	__le32 bcn_filter_id;
+	/* Filter type - wmi_bcn_filter */
+	__le32 bcn_filter;
+	/* Buffer len */
+	__le32 bcn_filter_len;
+	/* Filter info (threshold, BSSID, RSSI) */
+	u8 *bcn_filter_buf;
+} __packed;
+
+/* Capabilities and IEs to be passed to firmware */
+struct wmi_bcn_prb_info {
+	/* Capabilities */
+	__le32 caps;
+	/* ERP info */
+	__le32 erp;
+	/* Advanced capabilities */
+	/* HT capabilities */
+	/* HT Info */
+	/* ibss_dfs */
+	/* wpa Info */
+	/* rsn Info */
+	/* rrm info */
+	/* ath_ext */
+	/* app IE */
+} __packed;
+
+struct wmi_bcn_tmpl_cmd {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+	/* TIM IE offset from the beginning of the template. */
+	__le32 tim_ie_offset;
+	/* beacon probe capabilities and IEs */
+	struct wmi_bcn_prb_info bcn_prb_info;
+	/* beacon buffer length */
+	__le32 buf_len;
+	/* variable length data */
+	u8 data[1];
+} __packed;
+
+struct wmi_prb_tmpl_cmd {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+	/* beacon probe capabilities and IEs */
+	struct wmi_bcn_prb_info bcn_prb_info;
+	/* beacon buffer length */
+	__le32 buf_len;
+	/* Variable length data */
+	u8 data[1];
+} __packed;
+
+enum wmi_sta_ps_mode {
+	/* enable power save for the given STA VDEV */
+	WMI_STA_PS_MODE_DISABLED = 0,
+	/* disable power save  for a given STA VDEV */
+	WMI_STA_PS_MODE_ENABLED = 1,
+};
+
+struct wmi_sta_powersave_mode_cmd {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+
+	/*
+	 * Power save mode
+	 * (see enum wmi_sta_ps_mode)
+	 */
+	__le32 sta_ps_mode;
+} __packed;
+
+enum wmi_csa_offload_en {
+	WMI_CSA_OFFLOAD_DISABLE = 0,
+	WMI_CSA_OFFLOAD_ENABLE = 1,
+};
+
+struct wmi_csa_offload_enable_cmd {
+	__le32 vdev_id;
+	__le32 csa_offload_enable;
+} __packed;
+
+struct wmi_csa_offload_chanswitch_cmd {
+	__le32 vdev_id;
+	struct wmi_channel chan;
+} __packed;
+
+/*
+ * This parameter controls the policy for retrieving frames from AP while the
+ * STA is in sleep state.
+ *
+ * Only takes affect if the sta_ps_mode is enabled
+ */
+enum wmi_sta_ps_param_rx_wake_policy {
+	/*
+	 * Wake up when ever there is an  RX activity on the VDEV. In this mode
+	 * the Power save SM(state machine) will come out of sleep by either
+	 * sending null frame (or) a data frame (with PS==0) in response to TIM
+	 * bit set in the received beacon frame from AP.
+	 */
+	WMI_STA_PS_RX_WAKE_POLICY_WAKE = 0,
+
+	/*
+	 * Here the power save state machine will not wakeup in response to TIM
+	 * bit, instead it will send a PSPOLL (or) UASPD trigger based on UAPSD
+	 * configuration setup by WMISET_PS_SET_UAPSD  WMI command.  When all
+	 * access categories are delivery-enabled, the station will send a
+	 * UAPSD trigger frame, otherwise it will send a PS-Poll.
+	 */
+	WMI_STA_PS_RX_WAKE_POLICY_POLL_UAPSD = 1,
+};
+
+/*
+ * Number of tx frames/beacon  that cause the power save SM to wake up.
+ *
+ * Value 1 causes the SM to wake up for every TX. Value 0 has a special
+ * meaning, It will cause the SM to never wake up. This is useful if you want
+ * to keep the system to sleep all the time for some kind of test mode . host
+ * can change this parameter any time.  It will affect at the next tx frame.
+ */
+enum wmi_sta_ps_param_tx_wake_threshold {
+	WMI_STA_PS_TX_WAKE_THRESHOLD_NEVER = 0,
+	WMI_STA_PS_TX_WAKE_THRESHOLD_ALWAYS = 1,
+
+	/*
+	 * Values greater than one indicate that many TX attempts per beacon
+	 * interval before the STA will wake up
+	 */
+};
+
+/*
+ * The maximum number of PS-Poll frames the FW will send in response to
+ * traffic advertised in TIM before waking up (by sending a null frame with PS
+ * = 0). Value 0 has a special meaning: there is no maximum count and the FW
+ * will send as many PS-Poll as are necessary to retrieve buffered BU. This
+ * parameter is used when the RX wake policy is
+ * WMI_STA_PS_RX_WAKE_POLICY_POLL_UAPSD and ignored when the RX wake
+ * policy is WMI_STA_PS_RX_WAKE_POLICY_WAKE.
+ */
+enum wmi_sta_ps_param_pspoll_count {
+	WMI_STA_PS_PSPOLL_COUNT_NO_MAX = 0,
+	/*
+	 * Values greater than 0 indicate the maximum numer of PS-Poll frames
+	 * FW will send before waking up.
+	 */
+};
+
+/*
+ * This will include the delivery and trigger enabled state for every AC.
+ * This is the negotiated state with AP. The host MLME needs to set this based
+ * on AP capability and the state Set in the association request by the
+ * station MLME.Lower 8 bits of the value specify the UAPSD configuration.
+ */
+#define WMI_UAPSD_AC_TYPE_DELI 0
+#define WMI_UAPSD_AC_TYPE_TRIG 1
+
+#define WMI_UAPSD_AC_BIT_MASK(ac, type) \
+	((type ==  WMI_UAPSD_AC_TYPE_DELI) ? (1<<(ac<<1)) : (1<<((ac<<1)+1)))
+
+enum wmi_sta_ps_param_uapsd {
+	WMI_STA_PS_UAPSD_AC0_DELIVERY_EN = (1 << 0),
+	WMI_STA_PS_UAPSD_AC0_TRIGGER_EN  = (1 << 1),
+	WMI_STA_PS_UAPSD_AC1_DELIVERY_EN = (1 << 2),
+	WMI_STA_PS_UAPSD_AC1_TRIGGER_EN  = (1 << 3),
+	WMI_STA_PS_UAPSD_AC2_DELIVERY_EN = (1 << 4),
+	WMI_STA_PS_UAPSD_AC2_TRIGGER_EN  = (1 << 5),
+	WMI_STA_PS_UAPSD_AC3_DELIVERY_EN = (1 << 6),
+	WMI_STA_PS_UAPSD_AC3_TRIGGER_EN  = (1 << 7),
+};
+
+enum wmi_sta_powersave_param {
+	/*
+	 * Controls how frames are retrievd from AP while STA is sleeping
+	 *
+	 * (see enum wmi_sta_ps_param_rx_wake_policy)
+	 */
+	WMI_STA_PS_PARAM_RX_WAKE_POLICY = 0,
+
+	/*
+	 * The STA will go active after this many TX
+	 *
+	 * (see enum wmi_sta_ps_param_tx_wake_threshold)
+	 */
+	WMI_STA_PS_PARAM_TX_WAKE_THRESHOLD = 1,
+
+	/*
+	 * Number of PS-Poll to send before STA wakes up
+	 *
+	 * (see enum wmi_sta_ps_param_pspoll_count)
+	 *
+	 */
+	WMI_STA_PS_PARAM_PSPOLL_COUNT = 2,
+
+	/*
+	 * TX/RX inactivity time in msec before going to sleep.
+	 *
+	 * The power save SM will monitor tx/rx activity on the VDEV, if no
+	 * activity for the specified msec of the parameter the Power save
+	 * SM will go to sleep.
+	 */
+	WMI_STA_PS_PARAM_INACTIVITY_TIME = 3,
+
+	/*
+	 * Set uapsd configuration.
+	 *
+	 * (see enum wmi_sta_ps_param_uapsd)
+	 */
+	WMI_STA_PS_PARAM_UAPSD = 4,
+};
+
+struct wmi_sta_powersave_param_cmd {
+	__le32 vdev_id;
+	__le32 param_id; /* %WMI_STA_PS_PARAM_ */
+	__le32 param_value;
+} __packed;
+
+/* No MIMO power save */
+#define WMI_STA_MIMO_PS_MODE_DISABLE
+/* mimo powersave mode static*/
+#define WMI_STA_MIMO_PS_MODE_STATIC
+/* mimo powersave mode dynamic */
+#define WMI_STA_MIMO_PS_MODE_DYNAMIC
+
+struct wmi_sta_mimo_ps_mode_cmd {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+	/* mimo powersave mode as defined above */
+	__le32 mimo_pwrsave_mode;
+} __packed;
+
+/* U-APSD configuration of peer station from (re)assoc request and TSPECs */
+enum wmi_ap_ps_param_uapsd {
+	WMI_AP_PS_UAPSD_AC0_DELIVERY_EN = (1 << 0),
+	WMI_AP_PS_UAPSD_AC0_TRIGGER_EN  = (1 << 1),
+	WMI_AP_PS_UAPSD_AC1_DELIVERY_EN = (1 << 2),
+	WMI_AP_PS_UAPSD_AC1_TRIGGER_EN  = (1 << 3),
+	WMI_AP_PS_UAPSD_AC2_DELIVERY_EN = (1 << 4),
+	WMI_AP_PS_UAPSD_AC2_TRIGGER_EN  = (1 << 5),
+	WMI_AP_PS_UAPSD_AC3_DELIVERY_EN = (1 << 6),
+	WMI_AP_PS_UAPSD_AC3_TRIGGER_EN  = (1 << 7),
+};
+
+/* U-APSD maximum service period of peer station */
+enum wmi_ap_ps_peer_param_max_sp {
+	WMI_AP_PS_PEER_PARAM_MAX_SP_UNLIMITED = 0,
+	WMI_AP_PS_PEER_PARAM_MAX_SP_2 = 1,
+	WMI_AP_PS_PEER_PARAM_MAX_SP_4 = 2,
+	WMI_AP_PS_PEER_PARAM_MAX_SP_6 = 3,
+	MAX_WMI_AP_PS_PEER_PARAM_MAX_SP,
+};
+
+/*
+ * AP power save parameter
+ * Set a power save specific parameter for a peer station
+ */
+enum wmi_ap_ps_peer_param {
+	/* Set uapsd configuration for a given peer.
+	 *
+	 * Include the delivery and trigger enabled state for every AC.
+	 * The host  MLME needs to set this based on AP capability and stations
+	 * request Set in the association request  received from the station.
+	 *
+	 * Lower 8 bits of the value specify the UAPSD configuration.
+	 *
+	 * (see enum wmi_ap_ps_param_uapsd)
+	 * The default value is 0.
+	 */
+	WMI_AP_PS_PEER_PARAM_UAPSD = 0,
+
+	/*
+	 * Set the service period for a UAPSD capable station
+	 *
+	 * The service period from wme ie in the (re)assoc request frame.
+	 *
+	 * (see enum wmi_ap_ps_peer_param_max_sp)
+	 */
+	WMI_AP_PS_PEER_PARAM_MAX_SP = 1,
+
+	/* Time in seconds for aging out buffered frames for STA in PS */
+	WMI_AP_PS_PEER_PARAM_AGEOUT_TIME = 2,
+};
+
+struct wmi_ap_ps_peer_cmd {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+
+	/* peer MAC address */
+	struct wmi_mac_addr peer_macaddr;
+
+	/* AP powersave param (see enum wmi_ap_ps_peer_param) */
+	__le32 param_id;
+
+	/* AP powersave param value */
+	__le32 param_value;
+} __packed;
+
+/* 128 clients = 4 words */
+#define WMI_TIM_BITMAP_ARRAY_SIZE 4
+
+struct wmi_tim_info {
+	__le32 tim_len;
+	__le32 tim_mcast;
+	__le32 tim_bitmap[WMI_TIM_BITMAP_ARRAY_SIZE];
+	__le32 tim_changed;
+	__le32 tim_num_ps_pending;
+} __packed;
+
+/* Maximum number of NOA Descriptors supported */
+#define WMI_P2P_MAX_NOA_DESCRIPTORS 4
+#define WMI_P2P_OPPPS_ENABLE_BIT	BIT(0)
+#define WMI_P2P_OPPPS_CTWINDOW_OFFSET	1
+#define WMI_P2P_NOA_CHANGED_BIT	BIT(0)
+
+struct wmi_p2p_noa_info {
+	/* Bit 0 - Flag to indicate an update in NOA schedule
+	   Bits 7-1 - Reserved */
+	u8 changed;
+	/* NOA index */
+	u8 index;
+	/* Bit 0 - Opp PS state of the AP
+	   Bits 1-7 - Ctwindow in TUs */
+	u8 ctwindow_oppps;
+	/* Number of NOA descriptors */
+	u8 num_descriptors;
+
+	struct wmi_p2p_noa_descriptor descriptors[WMI_P2P_MAX_NOA_DESCRIPTORS];
+} __packed;
+
+struct wmi_bcn_info {
+	struct wmi_tim_info tim_info;
+	struct wmi_p2p_noa_info p2p_noa_info;
+} __packed;
+
+struct wmi_host_swba_event {
+	__le32 vdev_map;
+	struct wmi_bcn_info bcn_info[1];
+} __packed;
+
+#define WMI_MAX_AP_VDEV 16
+
+struct wmi_tbtt_offset_event {
+	__le32 vdev_map;
+	__le32 tbttoffset_list[WMI_MAX_AP_VDEV];
+} __packed;
+
+
+struct wmi_peer_create_cmd {
+	__le32 vdev_id;
+	struct wmi_mac_addr peer_macaddr;
+} __packed;
+
+struct wmi_peer_delete_cmd {
+	__le32 vdev_id;
+	struct wmi_mac_addr peer_macaddr;
+} __packed;
+
+struct wmi_peer_flush_tids_cmd {
+	__le32 vdev_id;
+	struct wmi_mac_addr peer_macaddr;
+	__le32 peer_tid_bitmap;
+} __packed;
+
+struct wmi_fixed_rate {
+	/*
+	 * rate mode . 0: disable fixed rate (auto rate)
+	 *   1: legacy (non 11n) rate  specified as ieee rate 2*Mbps
+	 *   2: ht20 11n rate  specified as mcs index
+	 *   3: ht40 11n rate  specified as mcs index
+	 */
+	__le32  rate_mode;
+	/*
+	 * 4 rate values for 4 rate series. series 0 is stored in byte 0 (LSB)
+	 * and series 3 is stored at byte 3 (MSB)
+	 */
+	__le32  rate_series;
+	/*
+	 * 4 retry counts for 4 rate series. retry count for rate 0 is stored
+	 * in byte 0 (LSB) and retry count for rate 3 is stored at byte 3
+	 * (MSB)
+	 */
+	__le32  rate_retries;
+} __packed;
+
+struct wmi_peer_fixed_rate_cmd {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+	/* peer MAC address */
+	struct wmi_mac_addr peer_macaddr;
+	/* fixed rate */
+	struct wmi_fixed_rate peer_fixed_rate;
+} __packed;
+
+#define WMI_MGMT_TID    17
+
+struct wmi_addba_clear_resp_cmd {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+	/* peer MAC address */
+	struct wmi_mac_addr peer_macaddr;
+} __packed;
+
+struct wmi_addba_send_cmd {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+	/* peer MAC address */
+	struct wmi_mac_addr peer_macaddr;
+	/* Tid number */
+	__le32 tid;
+	/* Buffer/Window size*/
+	__le32 buffersize;
+} __packed;
+
+struct wmi_delba_send_cmd {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+	/* peer MAC address */
+	struct wmi_mac_addr peer_macaddr;
+	/* Tid number */
+	__le32 tid;
+	/* Is Initiator */
+	__le32 initiator;
+	/* Reason code */
+	__le32 reasoncode;
+} __packed;
+
+struct wmi_addba_setresponse_cmd {
+	/* unique id identifying the vdev, generated by the caller */
+	__le32 vdev_id;
+	/* peer mac address */
+	struct wmi_mac_addr peer_macaddr;
+	/* Tid number */
+	__le32 tid;
+	/* status code */
+	__le32 statuscode;
+} __packed;
+
+struct wmi_send_singleamsdu_cmd {
+	/* unique id identifying the vdev, generated by the caller */
+	__le32 vdev_id;
+	/* peer mac address */
+	struct wmi_mac_addr peer_macaddr;
+	/* Tid number */
+	__le32 tid;
+} __packed;
+
+enum wmi_peer_smps_state {
+	WMI_PEER_SMPS_PS_NONE = 0x0,
+	WMI_PEER_SMPS_STATIC  = 0x1,
+	WMI_PEER_SMPS_DYNAMIC = 0x2
+};
+
+enum wmi_peer_param {
+	WMI_PEER_SMPS_STATE = 0x1, /* see %wmi_peer_smps_state */
+	WMI_PEER_AMPDU      = 0x2,
+	WMI_PEER_AUTHORIZE  = 0x3,
+	WMI_PEER_CHAN_WIDTH = 0x4,
+	WMI_PEER_NSS        = 0x5,
+	WMI_PEER_USE_4ADDR  = 0x6
+};
+
+struct wmi_peer_set_param_cmd {
+	__le32 vdev_id;
+	struct wmi_mac_addr peer_macaddr;
+	__le32 param_id;
+	__le32 param_value;
+} __packed;
+
+#define MAX_SUPPORTED_RATES 128
+
+struct wmi_rate_set {
+	/* total number of rates */
+	__le32 num_rates;
+	/*
+	 * rates (each 8bit value) packed into a 32 bit word.
+	 * the rates are filled from least significant byte to most
+	 * significant byte.
+	 */
+	__le32 rates[(MAX_SUPPORTED_RATES/4)+1];
+} __packed;
+
+struct wmi_rate_set_arg {
+	unsigned int num_rates;
+	u8 rates[MAX_SUPPORTED_RATES];
+};
+
+/*
+ * NOTE: It would bea good idea to represent the Tx MCS
+ * info in one word and Rx in another word. This is split
+ * into multiple words for convenience
+ */
+struct wmi_vht_rate_set {
+	__le32 rx_max_rate; /* Max Rx data rate */
+	__le32 rx_mcs_set;  /* Negotiated RX VHT rates */
+	__le32 tx_max_rate; /* Max Tx data rate */
+	__le32 tx_mcs_set;  /* Negotiated TX VHT rates */
+} __packed;
+
+struct wmi_vht_rate_set_arg {
+	u32 rx_max_rate;
+	u32 rx_mcs_set;
+	u32 tx_max_rate;
+	u32 tx_mcs_set;
+};
+
+struct wmi_peer_set_rates_cmd {
+	/* peer MAC address */
+	struct wmi_mac_addr peer_macaddr;
+	/* legacy rate set */
+	struct wmi_rate_set peer_legacy_rates;
+	/* ht rate set */
+	struct wmi_rate_set peer_ht_rates;
+} __packed;
+
+struct wmi_peer_set_q_empty_callback_cmd {
+	/* unique id identifying the VDEV, generated by the caller */
+	__le32 vdev_id;
+	/* peer MAC address */
+	struct wmi_mac_addr peer_macaddr;
+	__le32 callback_enable;
+} __packed;
+
+#define WMI_PEER_AUTH           0x00000001
+#define WMI_PEER_QOS            0x00000002
+#define WMI_PEER_NEED_PTK_4_WAY 0x00000004
+#define WMI_PEER_NEED_GTK_2_WAY 0x00000010
+#define WMI_PEER_APSD           0x00000800
+#define WMI_PEER_HT             0x00001000
+#define WMI_PEER_40MHZ          0x00002000
+#define WMI_PEER_STBC           0x00008000
+#define WMI_PEER_LDPC           0x00010000
+#define WMI_PEER_DYN_MIMOPS     0x00020000
+#define WMI_PEER_STATIC_MIMOPS  0x00040000
+#define WMI_PEER_SPATIAL_MUX    0x00200000
+#define WMI_PEER_VHT            0x02000000
+#define WMI_PEER_80MHZ          0x04000000
+#define WMI_PEER_PMF            0x08000000
+
+/*
+ * Peer rate capabilities.
+ *
+ * This is of interest to the ratecontrol
+ * module which resides in the firmware. The bit definitions are
+ * consistent with that defined in if_athrate.c.
+ */
+#define WMI_RC_DS_FLAG          0x01
+#define WMI_RC_CW40_FLAG        0x02
+#define WMI_RC_SGI_FLAG         0x04
+#define WMI_RC_HT_FLAG          0x08
+#define WMI_RC_RTSCTS_FLAG      0x10
+#define WMI_RC_TX_STBC_FLAG     0x20
+#define WMI_RC_RX_STBC_FLAG     0xC0
+#define WMI_RC_RX_STBC_FLAG_S   6
+#define WMI_RC_WEP_TKIP_FLAG    0x100
+#define WMI_RC_TS_FLAG          0x200
+#define WMI_RC_UAPSD_FLAG       0x400
+
+/* Maximum listen interval supported by hw in units of beacon interval */
+#define ATH10K_MAX_HW_LISTEN_INTERVAL 5
+
+struct wmi_peer_assoc_complete_cmd {
+	struct wmi_mac_addr peer_macaddr;
+	__le32 vdev_id;
+	__le32 peer_new_assoc; /* 1=assoc, 0=reassoc */
+	__le32 peer_associd; /* 16 LSBs */
+	__le32 peer_flags;
+	__le32 peer_caps; /* 16 LSBs */
+	__le32 peer_listen_intval;
+	__le32 peer_ht_caps;
+	__le32 peer_max_mpdu;
+	__le32 peer_mpdu_density; /* 0..16 */
+	__le32 peer_rate_caps;
+	struct wmi_rate_set peer_legacy_rates;
+	struct wmi_rate_set peer_ht_rates;
+	__le32 peer_nss; /* num of spatial streams */
+	__le32 peer_vht_caps;
+	__le32 peer_phymode;
+	struct wmi_vht_rate_set peer_vht_rates;
+	/* HT Operation Element of the peer. Five bytes packed in 2
+	 *  INT32 array and filled from lsb to msb. */
+	__le32 peer_ht_info[2];
+} __packed;
+
+struct wmi_peer_assoc_complete_arg {
+	u8 addr[ETH_ALEN];
+	u32 vdev_id;
+	bool peer_reassoc;
+	u16 peer_aid;
+	u32 peer_flags; /* see %WMI_PEER_ */
+	u16 peer_caps;
+	u32 peer_listen_intval;
+	u32 peer_ht_caps;
+	u32 peer_max_mpdu;
+	u32 peer_mpdu_density; /* 0..16 */
+	u32 peer_rate_caps; /* see %WMI_RC_ */
+	struct wmi_rate_set_arg peer_legacy_rates;
+	struct wmi_rate_set_arg peer_ht_rates;
+	u32 peer_num_spatial_streams;
+	u32 peer_vht_caps;
+	enum wmi_phy_mode peer_phymode;
+	struct wmi_vht_rate_set_arg peer_vht_rates;
+};
+
+struct wmi_peer_add_wds_entry_cmd {
+	/* peer MAC address */
+	struct wmi_mac_addr peer_macaddr;
+	/* wds MAC addr */
+	struct wmi_mac_addr wds_macaddr;
+} __packed;
+
+struct wmi_peer_remove_wds_entry_cmd {
+	/* wds MAC addr */
+	struct wmi_mac_addr wds_macaddr;
+} __packed;
+
+struct wmi_peer_q_empty_callback_event {
+	/* peer MAC address */
+	struct wmi_mac_addr peer_macaddr;
+} __packed;
+
+/*
+ * Channel info WMI event
+ */
+struct wmi_chan_info_event {
+	__le32 err_code;
+	__le32 freq;
+	__le32 cmd_flags;
+	__le32 noise_floor;
+	__le32 rx_clear_count;
+	__le32 cycle_count;
+} __packed;
+
+/* Beacon filter wmi command info */
+#define BCN_FLT_MAX_SUPPORTED_IES	256
+#define BCN_FLT_MAX_ELEMS_IE_LIST	(BCN_FLT_MAX_SUPPORTED_IES / 32)
+
+struct bss_bcn_stats {
+	__le32 vdev_id;
+	__le32 bss_bcnsdropped;
+	__le32 bss_bcnsdelivered;
+} __packed;
+
+struct bcn_filter_stats {
+	__le32 bcns_dropped;
+	__le32 bcns_delivered;
+	__le32 activefilters;
+	struct bss_bcn_stats bss_stats;
+} __packed;
+
+struct wmi_add_bcn_filter_cmd {
+	u32 vdev_id;
+	u32 ie_map[BCN_FLT_MAX_ELEMS_IE_LIST];
+} __packed;
+
+enum wmi_sta_keepalive_method {
+	WMI_STA_KEEPALIVE_METHOD_NULL_FRAME = 1,
+	WMI_STA_KEEPALIVE_METHOD_UNSOLICITATED_ARP_RESPONSE = 2,
+};
+
+/* note: ip4 addresses are in network byte order, i.e. big endian */
+struct wmi_sta_keepalive_arp_resp {
+	__be32 src_ip4_addr;
+	__be32 dest_ip4_addr;
+	struct wmi_mac_addr dest_mac_addr;
+} __packed;
+
+struct wmi_sta_keepalive_cmd {
+	__le32 vdev_id;
+	__le32 enabled;
+	__le32 method; /* WMI_STA_KEEPALIVE_METHOD_ */
+	__le32 interval; /* in seconds */
+	struct wmi_sta_keepalive_arp_resp arp_resp;
+} __packed;
+
+#define ATH10K_RTS_MAX		2347
+#define ATH10K_FRAGMT_THRESHOLD_MIN	540
+#define ATH10K_FRAGMT_THRESHOLD_MAX	2346
+
+#define WMI_MAX_EVENT 0x1000
+/* Maximum number of pending TXed WMI packets */
+#define WMI_MAX_PENDING_TX_COUNT 128
+#define WMI_SKB_HEADROOM sizeof(struct wmi_cmd_hdr)
+
+/* By default disable power save for IBSS */
+#define ATH10K_DEFAULT_ATIM 0
+
+struct ath10k;
+struct ath10k_vif;
+
+int ath10k_wmi_attach(struct ath10k *ar);
+void ath10k_wmi_detach(struct ath10k *ar);
+int ath10k_wmi_wait_for_service_ready(struct ath10k *ar);
+int ath10k_wmi_wait_for_unified_ready(struct ath10k *ar);
+void ath10k_wmi_flush_tx(struct ath10k *ar);
+
+int ath10k_wmi_connect_htc_service(struct ath10k *ar);
+int ath10k_wmi_pdev_set_channel(struct ath10k *ar,
+				const struct wmi_channel_arg *);
+int ath10k_wmi_pdev_suspend_target(struct ath10k *ar);
+int ath10k_wmi_pdev_resume_target(struct ath10k *ar);
+int ath10k_wmi_pdev_set_regdomain(struct ath10k *ar, u16 rd, u16 rd2g,
+				  u16 rd5g, u16 ctl2g, u16 ctl5g);
+int ath10k_wmi_pdev_set_param(struct ath10k *ar, enum wmi_pdev_param id,
+			      u32 value);
+int ath10k_wmi_cmd_init(struct ath10k *ar);
+int ath10k_wmi_start_scan(struct ath10k *ar, const struct wmi_start_scan_arg *);
+void ath10k_wmi_start_scan_init(struct ath10k *ar, struct wmi_start_scan_arg *);
+int ath10k_wmi_stop_scan(struct ath10k *ar,
+			 const struct wmi_stop_scan_arg *arg);
+int ath10k_wmi_vdev_create(struct ath10k *ar, u32 vdev_id,
+			   enum wmi_vdev_type type,
+			   enum wmi_vdev_subtype subtype,
+			   const u8 macaddr[ETH_ALEN]);
+int ath10k_wmi_vdev_delete(struct ath10k *ar, u32 vdev_id);
+int ath10k_wmi_vdev_start(struct ath10k *ar,
+			  const struct wmi_vdev_start_request_arg *);
+int ath10k_wmi_vdev_restart(struct ath10k *ar,
+			    const struct wmi_vdev_start_request_arg *);
+int ath10k_wmi_vdev_stop(struct ath10k *ar, u32 vdev_id);
+int ath10k_wmi_vdev_up(struct ath10k *ar, u32 vdev_id, u32 aid,
+		       const u8 *bssid);
+int ath10k_wmi_vdev_down(struct ath10k *ar, u32 vdev_id);
+int ath10k_wmi_vdev_set_param(struct ath10k *ar, u32 vdev_id,
+			      enum wmi_vdev_param param_id, u32 param_value);
+int ath10k_wmi_vdev_install_key(struct ath10k *ar,
+				const struct wmi_vdev_install_key_arg *arg);
+int ath10k_wmi_peer_create(struct ath10k *ar, u32 vdev_id,
+		    const u8 peer_addr[ETH_ALEN]);
+int ath10k_wmi_peer_delete(struct ath10k *ar, u32 vdev_id,
+		    const u8 peer_addr[ETH_ALEN]);
+int ath10k_wmi_peer_flush(struct ath10k *ar, u32 vdev_id,
+		   const u8 peer_addr[ETH_ALEN], u32 tid_bitmap);
+int ath10k_wmi_peer_set_param(struct ath10k *ar, u32 vdev_id,
+			      const u8 *peer_addr,
+			      enum wmi_peer_param param_id, u32 param_value);
+int ath10k_wmi_peer_assoc(struct ath10k *ar,
+			  const struct wmi_peer_assoc_complete_arg *arg);
+int ath10k_wmi_set_psmode(struct ath10k *ar, u32 vdev_id,
+			  enum wmi_sta_ps_mode psmode);
+int ath10k_wmi_set_sta_ps_param(struct ath10k *ar, u32 vdev_id,
+				enum wmi_sta_powersave_param param_id,
+				u32 value);
+int ath10k_wmi_set_ap_ps_param(struct ath10k *ar, u32 vdev_id, const u8 *mac,
+			       enum wmi_ap_ps_peer_param param_id, u32 value);
+int ath10k_wmi_scan_chan_list(struct ath10k *ar,
+			      const struct wmi_scan_chan_list_arg *arg);
+int ath10k_wmi_beacon_send(struct ath10k *ar, const struct wmi_bcn_tx_arg *arg);
+int ath10k_wmi_pdev_set_wmm_params(struct ath10k *ar,
+			const struct wmi_pdev_set_wmm_params_arg *arg);
+int ath10k_wmi_request_stats(struct ath10k *ar, enum wmi_stats_id stats_id);
+
+#endif /* _WMI_H_ */