|
|
@@ -0,0 +1,2277 @@
|
|
|
+/*
|
|
|
+ * Copyright (c) 2012 Broadcom Corporation
|
|
|
+ *
|
|
|
+ * 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 <linux/netdevice.h>
|
|
|
+#include <net/cfg80211.h>
|
|
|
+
|
|
|
+#include <brcmu_wifi.h>
|
|
|
+#include <brcmu_utils.h>
|
|
|
+#include <defs.h>
|
|
|
+#include <dhd.h>
|
|
|
+#include <dhd_dbg.h>
|
|
|
+#include "fwil.h"
|
|
|
+#include "fwil_types.h"
|
|
|
+#include "p2p.h"
|
|
|
+#include "wl_cfg80211.h"
|
|
|
+
|
|
|
+/* parameters used for p2p escan */
|
|
|
+#define P2PAPI_SCAN_NPROBES 1
|
|
|
+#define P2PAPI_SCAN_DWELL_TIME_MS 80
|
|
|
+#define P2PAPI_SCAN_SOCIAL_DWELL_TIME_MS 40
|
|
|
+#define P2PAPI_SCAN_HOME_TIME_MS 60
|
|
|
+#define P2PAPI_SCAN_NPROBS_TIME_MS 30
|
|
|
+#define P2PAPI_SCAN_AF_SEARCH_DWELL_TIME_MS 100
|
|
|
+#define WL_SCAN_CONNECT_DWELL_TIME_MS 200
|
|
|
+#define WL_SCAN_JOIN_PROBE_INTERVAL_MS 20
|
|
|
+
|
|
|
+#define BRCMF_P2P_WILDCARD_SSID "DIRECT-"
|
|
|
+#define BRCMF_P2P_WILDCARD_SSID_LEN (sizeof(BRCMF_P2P_WILDCARD_SSID) - 1)
|
|
|
+
|
|
|
+#define SOCIAL_CHAN_1 1
|
|
|
+#define SOCIAL_CHAN_2 6
|
|
|
+#define SOCIAL_CHAN_3 11
|
|
|
+#define IS_P2P_SOCIAL_CHANNEL(channel) ((channel == SOCIAL_CHAN_1) || \
|
|
|
+ (channel == SOCIAL_CHAN_2) || \
|
|
|
+ (channel == SOCIAL_CHAN_3))
|
|
|
+#define SOCIAL_CHAN_CNT 3
|
|
|
+#define AF_PEER_SEARCH_CNT 2
|
|
|
+
|
|
|
+#define BRCMF_SCB_TIMEOUT_VALUE 20
|
|
|
+
|
|
|
+#define P2P_VER 9 /* P2P version: 9=WiFi P2P v1.0 */
|
|
|
+#define P2P_PUB_AF_CATEGORY 0x04
|
|
|
+#define P2P_PUB_AF_ACTION 0x09
|
|
|
+#define P2P_AF_CATEGORY 0x7f
|
|
|
+#define P2P_OUI "\x50\x6F\x9A" /* P2P OUI */
|
|
|
+#define P2P_OUI_LEN 3 /* P2P OUI length */
|
|
|
+
|
|
|
+/* Action Frame Constants */
|
|
|
+#define DOT11_ACTION_HDR_LEN 2 /* action frame category + action */
|
|
|
+#define DOT11_ACTION_CAT_OFF 0 /* category offset */
|
|
|
+#define DOT11_ACTION_ACT_OFF 1 /* action offset */
|
|
|
+
|
|
|
+#define P2P_AF_DWELL_TIME 200
|
|
|
+#define P2P_AF_MIN_DWELL_TIME 100
|
|
|
+#define P2P_AF_MED_DWELL_TIME 400
|
|
|
+#define P2P_AF_LONG_DWELL_TIME 1000
|
|
|
+#define P2P_AF_TX_MAX_RETRY 1
|
|
|
+#define P2P_AF_MAX_WAIT_TIME 2000
|
|
|
+#define P2P_INVALID_CHANNEL -1
|
|
|
+#define P2P_CHANNEL_SYNC_RETRY 5
|
|
|
+#define P2P_AF_FRM_SCAN_MAX_WAIT 1500
|
|
|
+#define P2P_DEFAULT_SLEEP_TIME_VSDB 200
|
|
|
+
|
|
|
+/* WiFi P2P Public Action Frame OUI Subtypes */
|
|
|
+#define P2P_PAF_GON_REQ 0 /* Group Owner Negotiation Req */
|
|
|
+#define P2P_PAF_GON_RSP 1 /* Group Owner Negotiation Rsp */
|
|
|
+#define P2P_PAF_GON_CONF 2 /* Group Owner Negotiation Confirm */
|
|
|
+#define P2P_PAF_INVITE_REQ 3 /* P2P Invitation Request */
|
|
|
+#define P2P_PAF_INVITE_RSP 4 /* P2P Invitation Response */
|
|
|
+#define P2P_PAF_DEVDIS_REQ 5 /* Device Discoverability Request */
|
|
|
+#define P2P_PAF_DEVDIS_RSP 6 /* Device Discoverability Response */
|
|
|
+#define P2P_PAF_PROVDIS_REQ 7 /* Provision Discovery Request */
|
|
|
+#define P2P_PAF_PROVDIS_RSP 8 /* Provision Discovery Response */
|
|
|
+#define P2P_PAF_SUBTYPE_INVALID 255 /* Invalid Subtype */
|
|
|
+
|
|
|
+/* WiFi P2P Action Frame OUI Subtypes */
|
|
|
+#define P2P_AF_NOTICE_OF_ABSENCE 0 /* Notice of Absence */
|
|
|
+#define P2P_AF_PRESENCE_REQ 1 /* P2P Presence Request */
|
|
|
+#define P2P_AF_PRESENCE_RSP 2 /* P2P Presence Response */
|
|
|
+#define P2P_AF_GO_DISC_REQ 3 /* GO Discoverability Request */
|
|
|
+
|
|
|
+/* P2P Service Discovery related */
|
|
|
+#define P2PSD_ACTION_CATEGORY 0x04 /* Public action frame */
|
|
|
+#define P2PSD_ACTION_ID_GAS_IREQ 0x0a /* GAS Initial Request AF */
|
|
|
+#define P2PSD_ACTION_ID_GAS_IRESP 0x0b /* GAS Initial Response AF */
|
|
|
+#define P2PSD_ACTION_ID_GAS_CREQ 0x0c /* GAS Comback Request AF */
|
|
|
+#define P2PSD_ACTION_ID_GAS_CRESP 0x0d /* GAS Comback Response AF */
|
|
|
+
|
|
|
+/**
|
|
|
+ * struct brcmf_p2p_disc_st_le - set discovery state in firmware.
|
|
|
+ *
|
|
|
+ * @state: requested discovery state (see enum brcmf_p2p_disc_state).
|
|
|
+ * @chspec: channel parameter for %WL_P2P_DISC_ST_LISTEN state.
|
|
|
+ * @dwell: dwell time in ms for %WL_P2P_DISC_ST_LISTEN state.
|
|
|
+ */
|
|
|
+struct brcmf_p2p_disc_st_le {
|
|
|
+ u8 state;
|
|
|
+ __le16 chspec;
|
|
|
+ __le16 dwell;
|
|
|
+};
|
|
|
+
|
|
|
+/**
|
|
|
+ * enum brcmf_p2p_disc_state - P2P discovery state values
|
|
|
+ *
|
|
|
+ * @WL_P2P_DISC_ST_SCAN: P2P discovery with wildcard SSID and P2P IE.
|
|
|
+ * @WL_P2P_DISC_ST_LISTEN: P2P discovery off-channel for specified time.
|
|
|
+ * @WL_P2P_DISC_ST_SEARCH: P2P discovery with P2P wildcard SSID and P2P IE.
|
|
|
+ */
|
|
|
+enum brcmf_p2p_disc_state {
|
|
|
+ WL_P2P_DISC_ST_SCAN,
|
|
|
+ WL_P2P_DISC_ST_LISTEN,
|
|
|
+ WL_P2P_DISC_ST_SEARCH
|
|
|
+};
|
|
|
+
|
|
|
+/**
|
|
|
+ * struct brcmf_p2p_scan_le - P2P specific scan request.
|
|
|
+ *
|
|
|
+ * @type: type of scan method requested (values: 'E' or 'S').
|
|
|
+ * @reserved: reserved (ignored).
|
|
|
+ * @eparams: parameters used for type 'E'.
|
|
|
+ * @sparams: parameters used for type 'S'.
|
|
|
+ */
|
|
|
+struct brcmf_p2p_scan_le {
|
|
|
+ u8 type;
|
|
|
+ u8 reserved[3];
|
|
|
+ union {
|
|
|
+ struct brcmf_escan_params_le eparams;
|
|
|
+ struct brcmf_scan_params_le sparams;
|
|
|
+ };
|
|
|
+};
|
|
|
+
|
|
|
+/**
|
|
|
+ * struct brcmf_p2p_pub_act_frame - WiFi P2P Public Action Frame
|
|
|
+ *
|
|
|
+ * @category: P2P_PUB_AF_CATEGORY
|
|
|
+ * @action: P2P_PUB_AF_ACTION
|
|
|
+ * @oui[3]: P2P_OUI
|
|
|
+ * @oui_type: OUI type - P2P_VER
|
|
|
+ * @subtype: OUI subtype - P2P_TYPE_*
|
|
|
+ * @dialog_token: nonzero, identifies req/rsp transaction
|
|
|
+ * @elts[1]: Variable length information elements.
|
|
|
+ */
|
|
|
+struct brcmf_p2p_pub_act_frame {
|
|
|
+ u8 category;
|
|
|
+ u8 action;
|
|
|
+ u8 oui[3];
|
|
|
+ u8 oui_type;
|
|
|
+ u8 subtype;
|
|
|
+ u8 dialog_token;
|
|
|
+ u8 elts[1];
|
|
|
+};
|
|
|
+
|
|
|
+/**
|
|
|
+ * struct brcmf_p2p_action_frame - WiFi P2P Action Frame
|
|
|
+ *
|
|
|
+ * @category: P2P_AF_CATEGORY
|
|
|
+ * @OUI[3]: OUI - P2P_OUI
|
|
|
+ * @type: OUI Type - P2P_VER
|
|
|
+ * @subtype: OUI Subtype - P2P_AF_*
|
|
|
+ * @dialog_token: nonzero, identifies req/resp tranaction
|
|
|
+ * @elts[1]: Variable length information elements.
|
|
|
+ */
|
|
|
+struct brcmf_p2p_action_frame {
|
|
|
+ u8 category;
|
|
|
+ u8 oui[3];
|
|
|
+ u8 type;
|
|
|
+ u8 subtype;
|
|
|
+ u8 dialog_token;
|
|
|
+ u8 elts[1];
|
|
|
+};
|
|
|
+
|
|
|
+/**
|
|
|
+ * struct brcmf_p2psd_gas_pub_act_frame - Wi-Fi GAS Public Action Frame
|
|
|
+ *
|
|
|
+ * @category: 0x04 Public Action Frame
|
|
|
+ * @action: 0x6c Advertisement Protocol
|
|
|
+ * @dialog_token: nonzero, identifies req/rsp transaction
|
|
|
+ * @query_data[1]: Query Data. SD gas ireq SD gas iresp
|
|
|
+ */
|
|
|
+struct brcmf_p2psd_gas_pub_act_frame {
|
|
|
+ u8 category;
|
|
|
+ u8 action;
|
|
|
+ u8 dialog_token;
|
|
|
+ u8 query_data[1];
|
|
|
+};
|
|
|
+
|
|
|
+/**
|
|
|
+ * struct brcmf_config_af_params - Action Frame Parameters for tx.
|
|
|
+ *
|
|
|
+ * @mpc_onoff: To make sure to send successfully action frame, we have to
|
|
|
+ * turn off mpc 0: off, 1: on, (-1): do nothing
|
|
|
+ * @search_channel: 1: search peer's channel to send af
|
|
|
+ * extra_listen: keep the dwell time to get af response frame.
|
|
|
+ */
|
|
|
+struct brcmf_config_af_params {
|
|
|
+ s32 mpc_onoff;
|
|
|
+ bool search_channel;
|
|
|
+ bool extra_listen;
|
|
|
+};
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_is_pub_action() - true if p2p public type frame.
|
|
|
+ *
|
|
|
+ * @frame: action frame data.
|
|
|
+ * @frame_len: length of action frame data.
|
|
|
+ *
|
|
|
+ * Determine if action frame is p2p public action type
|
|
|
+ */
|
|
|
+static bool brcmf_p2p_is_pub_action(void *frame, u32 frame_len)
|
|
|
+{
|
|
|
+ struct brcmf_p2p_pub_act_frame *pact_frm;
|
|
|
+
|
|
|
+ if (frame == NULL)
|
|
|
+ return false;
|
|
|
+
|
|
|
+ pact_frm = (struct brcmf_p2p_pub_act_frame *)frame;
|
|
|
+ if (frame_len < sizeof(struct brcmf_p2p_pub_act_frame) - 1)
|
|
|
+ return false;
|
|
|
+
|
|
|
+ if (pact_frm->category == P2P_PUB_AF_CATEGORY &&
|
|
|
+ pact_frm->action == P2P_PUB_AF_ACTION &&
|
|
|
+ pact_frm->oui_type == P2P_VER &&
|
|
|
+ memcmp(pact_frm->oui, P2P_OUI, P2P_OUI_LEN) == 0)
|
|
|
+ return true;
|
|
|
+
|
|
|
+ return false;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_is_p2p_action() - true if p2p action type frame.
|
|
|
+ *
|
|
|
+ * @frame: action frame data.
|
|
|
+ * @frame_len: length of action frame data.
|
|
|
+ *
|
|
|
+ * Determine if action frame is p2p action type
|
|
|
+ */
|
|
|
+static bool brcmf_p2p_is_p2p_action(void *frame, u32 frame_len)
|
|
|
+{
|
|
|
+ struct brcmf_p2p_action_frame *act_frm;
|
|
|
+
|
|
|
+ if (frame == NULL)
|
|
|
+ return false;
|
|
|
+
|
|
|
+ act_frm = (struct brcmf_p2p_action_frame *)frame;
|
|
|
+ if (frame_len < sizeof(struct brcmf_p2p_action_frame) - 1)
|
|
|
+ return false;
|
|
|
+
|
|
|
+ if (act_frm->category == P2P_AF_CATEGORY &&
|
|
|
+ act_frm->type == P2P_VER &&
|
|
|
+ memcmp(act_frm->oui, P2P_OUI, P2P_OUI_LEN) == 0)
|
|
|
+ return true;
|
|
|
+
|
|
|
+ return false;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_is_gas_action() - true if p2p gas action type frame.
|
|
|
+ *
|
|
|
+ * @frame: action frame data.
|
|
|
+ * @frame_len: length of action frame data.
|
|
|
+ *
|
|
|
+ * Determine if action frame is p2p gas action type
|
|
|
+ */
|
|
|
+static bool brcmf_p2p_is_gas_action(void *frame, u32 frame_len)
|
|
|
+{
|
|
|
+ struct brcmf_p2psd_gas_pub_act_frame *sd_act_frm;
|
|
|
+
|
|
|
+ if (frame == NULL)
|
|
|
+ return false;
|
|
|
+
|
|
|
+ sd_act_frm = (struct brcmf_p2psd_gas_pub_act_frame *)frame;
|
|
|
+ if (frame_len < sizeof(struct brcmf_p2psd_gas_pub_act_frame) - 1)
|
|
|
+ return false;
|
|
|
+
|
|
|
+ if (sd_act_frm->category != P2PSD_ACTION_CATEGORY)
|
|
|
+ return false;
|
|
|
+
|
|
|
+ if (sd_act_frm->action == P2PSD_ACTION_ID_GAS_IREQ ||
|
|
|
+ sd_act_frm->action == P2PSD_ACTION_ID_GAS_IRESP ||
|
|
|
+ sd_act_frm->action == P2PSD_ACTION_ID_GAS_CREQ ||
|
|
|
+ sd_act_frm->action == P2PSD_ACTION_ID_GAS_CRESP)
|
|
|
+ return true;
|
|
|
+
|
|
|
+ return false;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_print_actframe() - debug print routine.
|
|
|
+ *
|
|
|
+ * @tx: Received or to be transmitted
|
|
|
+ * @frame: action frame data.
|
|
|
+ * @frame_len: length of action frame data.
|
|
|
+ *
|
|
|
+ * Print information about the p2p action frame
|
|
|
+ */
|
|
|
+
|
|
|
+#ifdef DEBUG
|
|
|
+
|
|
|
+static void brcmf_p2p_print_actframe(bool tx, void *frame, u32 frame_len)
|
|
|
+{
|
|
|
+ struct brcmf_p2p_pub_act_frame *pact_frm;
|
|
|
+ struct brcmf_p2p_action_frame *act_frm;
|
|
|
+ struct brcmf_p2psd_gas_pub_act_frame *sd_act_frm;
|
|
|
+
|
|
|
+ if (!frame || frame_len <= 2)
|
|
|
+ return;
|
|
|
+
|
|
|
+ if (brcmf_p2p_is_pub_action(frame, frame_len)) {
|
|
|
+ pact_frm = (struct brcmf_p2p_pub_act_frame *)frame;
|
|
|
+ switch (pact_frm->subtype) {
|
|
|
+ case P2P_PAF_GON_REQ:
|
|
|
+ brcmf_dbg(TRACE, "%s P2P Group Owner Negotiation Req Frame\n",
|
|
|
+ (tx) ? "TX" : "RX");
|
|
|
+ break;
|
|
|
+ case P2P_PAF_GON_RSP:
|
|
|
+ brcmf_dbg(TRACE, "%s P2P Group Owner Negotiation Rsp Frame\n",
|
|
|
+ (tx) ? "TX" : "RX");
|
|
|
+ break;
|
|
|
+ case P2P_PAF_GON_CONF:
|
|
|
+ brcmf_dbg(TRACE, "%s P2P Group Owner Negotiation Confirm Frame\n",
|
|
|
+ (tx) ? "TX" : "RX");
|
|
|
+ break;
|
|
|
+ case P2P_PAF_INVITE_REQ:
|
|
|
+ brcmf_dbg(TRACE, "%s P2P Invitation Request Frame\n",
|
|
|
+ (tx) ? "TX" : "RX");
|
|
|
+ break;
|
|
|
+ case P2P_PAF_INVITE_RSP:
|
|
|
+ brcmf_dbg(TRACE, "%s P2P Invitation Response Frame\n",
|
|
|
+ (tx) ? "TX" : "RX");
|
|
|
+ break;
|
|
|
+ case P2P_PAF_DEVDIS_REQ:
|
|
|
+ brcmf_dbg(TRACE, "%s P2P Device Discoverability Request Frame\n",
|
|
|
+ (tx) ? "TX" : "RX");
|
|
|
+ break;
|
|
|
+ case P2P_PAF_DEVDIS_RSP:
|
|
|
+ brcmf_dbg(TRACE, "%s P2P Device Discoverability Response Frame\n",
|
|
|
+ (tx) ? "TX" : "RX");
|
|
|
+ break;
|
|
|
+ case P2P_PAF_PROVDIS_REQ:
|
|
|
+ brcmf_dbg(TRACE, "%s P2P Provision Discovery Request Frame\n",
|
|
|
+ (tx) ? "TX" : "RX");
|
|
|
+ break;
|
|
|
+ case P2P_PAF_PROVDIS_RSP:
|
|
|
+ brcmf_dbg(TRACE, "%s P2P Provision Discovery Response Frame\n",
|
|
|
+ (tx) ? "TX" : "RX");
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ brcmf_dbg(TRACE, "%s Unknown P2P Public Action Frame\n",
|
|
|
+ (tx) ? "TX" : "RX");
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ } else if (brcmf_p2p_is_p2p_action(frame, frame_len)) {
|
|
|
+ act_frm = (struct brcmf_p2p_action_frame *)frame;
|
|
|
+ switch (act_frm->subtype) {
|
|
|
+ case P2P_AF_NOTICE_OF_ABSENCE:
|
|
|
+ brcmf_dbg(TRACE, "%s P2P Notice of Absence Frame\n",
|
|
|
+ (tx) ? "TX" : "RX");
|
|
|
+ break;
|
|
|
+ case P2P_AF_PRESENCE_REQ:
|
|
|
+ brcmf_dbg(TRACE, "%s P2P Presence Request Frame\n",
|
|
|
+ (tx) ? "TX" : "RX");
|
|
|
+ break;
|
|
|
+ case P2P_AF_PRESENCE_RSP:
|
|
|
+ brcmf_dbg(TRACE, "%s P2P Presence Response Frame\n",
|
|
|
+ (tx) ? "TX" : "RX");
|
|
|
+ break;
|
|
|
+ case P2P_AF_GO_DISC_REQ:
|
|
|
+ brcmf_dbg(TRACE, "%s P2P Discoverability Request Frame\n",
|
|
|
+ (tx) ? "TX" : "RX");
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ brcmf_dbg(TRACE, "%s Unknown P2P Action Frame\n",
|
|
|
+ (tx) ? "TX" : "RX");
|
|
|
+ }
|
|
|
+
|
|
|
+ } else if (brcmf_p2p_is_gas_action(frame, frame_len)) {
|
|
|
+ sd_act_frm = (struct brcmf_p2psd_gas_pub_act_frame *)frame;
|
|
|
+ switch (sd_act_frm->action) {
|
|
|
+ case P2PSD_ACTION_ID_GAS_IREQ:
|
|
|
+ brcmf_dbg(TRACE, "%s P2P GAS Initial Request\n",
|
|
|
+ (tx) ? "TX" : "RX");
|
|
|
+ break;
|
|
|
+ case P2PSD_ACTION_ID_GAS_IRESP:
|
|
|
+ brcmf_dbg(TRACE, "%s P2P GAS Initial Response\n",
|
|
|
+ (tx) ? "TX" : "RX");
|
|
|
+ break;
|
|
|
+ case P2PSD_ACTION_ID_GAS_CREQ:
|
|
|
+ brcmf_dbg(TRACE, "%s P2P GAS Comback Request\n",
|
|
|
+ (tx) ? "TX" : "RX");
|
|
|
+ break;
|
|
|
+ case P2PSD_ACTION_ID_GAS_CRESP:
|
|
|
+ brcmf_dbg(TRACE, "%s P2P GAS Comback Response\n",
|
|
|
+ (tx) ? "TX" : "RX");
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ brcmf_dbg(TRACE, "%s Unknown P2P GAS Frame\n",
|
|
|
+ (tx) ? "TX" : "RX");
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+#else
|
|
|
+
|
|
|
+static void brcmf_p2p_print_actframe(bool tx, void *frame, u32 frame_len)
|
|
|
+{
|
|
|
+}
|
|
|
+
|
|
|
+#endif
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_chnr_to_chspec() - convert channel number to chanspec.
|
|
|
+ *
|
|
|
+ * @channel: channel number
|
|
|
+ */
|
|
|
+static u16 brcmf_p2p_chnr_to_chspec(u16 channel)
|
|
|
+{
|
|
|
+ u16 chanspec;
|
|
|
+
|
|
|
+ chanspec = channel & WL_CHANSPEC_CHAN_MASK;
|
|
|
+
|
|
|
+ if (channel <= CH_MAX_2G_CHANNEL)
|
|
|
+ chanspec |= WL_CHANSPEC_BAND_2G;
|
|
|
+ else
|
|
|
+ chanspec |= WL_CHANSPEC_BAND_5G;
|
|
|
+
|
|
|
+ chanspec |= WL_CHANSPEC_BW_20;
|
|
|
+ chanspec |= WL_CHANSPEC_CTL_SB_NONE;
|
|
|
+
|
|
|
+ return chanspec;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_set_firmware() - prepare firmware for peer-to-peer operation.
|
|
|
+ *
|
|
|
+ * @ifp: ifp to use for iovars (primary).
|
|
|
+ * @p2p_mac: mac address to configure for p2p_da_override
|
|
|
+ */
|
|
|
+static int brcmf_p2p_set_firmware(struct brcmf_if *ifp, u8 *p2p_mac)
|
|
|
+{
|
|
|
+ s32 ret = 0;
|
|
|
+
|
|
|
+ brcmf_fil_iovar_int_set(ifp, "apsta", 1);
|
|
|
+
|
|
|
+ /* In case of COB type, firmware has default mac address
|
|
|
+ * After Initializing firmware, we have to set current mac address to
|
|
|
+ * firmware for P2P device address
|
|
|
+ */
|
|
|
+ ret = brcmf_fil_iovar_data_set(ifp, "p2p_da_override", p2p_mac,
|
|
|
+ ETH_ALEN);
|
|
|
+ if (ret)
|
|
|
+ brcmf_err("failed to update device address ret %d\n", ret);
|
|
|
+
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_generate_bss_mac() - derive mac addresses for P2P.
|
|
|
+ *
|
|
|
+ * @p2p: P2P specific data.
|
|
|
+ *
|
|
|
+ * P2P needs mac addresses for P2P device and interface. These are
|
|
|
+ * derived from the primary net device, ie. the permanent ethernet
|
|
|
+ * address of the device.
|
|
|
+ */
|
|
|
+static void brcmf_p2p_generate_bss_mac(struct brcmf_p2p_info *p2p)
|
|
|
+{
|
|
|
+ struct brcmf_if *pri_ifp = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp;
|
|
|
+ struct brcmf_if *p2p_ifp = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif->ifp;
|
|
|
+
|
|
|
+ /* Generate the P2P Device Address. This consists of the device's
|
|
|
+ * primary MAC address with the locally administered bit set.
|
|
|
+ */
|
|
|
+ memcpy(p2p->dev_addr, pri_ifp->mac_addr, ETH_ALEN);
|
|
|
+ p2p->dev_addr[0] |= 0x02;
|
|
|
+ memcpy(p2p_ifp->mac_addr, p2p->dev_addr, ETH_ALEN);
|
|
|
+
|
|
|
+ /* Generate the P2P Interface Address. If the discovery and connection
|
|
|
+ * BSSCFGs need to simultaneously co-exist, then this address must be
|
|
|
+ * different from the P2P Device Address, but also locally administered.
|
|
|
+ */
|
|
|
+ memcpy(p2p->int_addr, p2p->dev_addr, ETH_ALEN);
|
|
|
+ p2p->int_addr[4] ^= 0x80;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_scan_is_p2p_request() - is cfg80211 scan request a P2P scan.
|
|
|
+ *
|
|
|
+ * @request: the scan request as received from cfg80211.
|
|
|
+ *
|
|
|
+ * returns true if one of the ssids in the request matches the
|
|
|
+ * P2P wildcard ssid; otherwise returns false.
|
|
|
+ */
|
|
|
+static bool brcmf_p2p_scan_is_p2p_request(struct cfg80211_scan_request *request)
|
|
|
+{
|
|
|
+ struct cfg80211_ssid *ssids = request->ssids;
|
|
|
+ int i;
|
|
|
+
|
|
|
+ for (i = 0; i < request->n_ssids; i++) {
|
|
|
+ if (ssids[i].ssid_len != BRCMF_P2P_WILDCARD_SSID_LEN)
|
|
|
+ continue;
|
|
|
+
|
|
|
+ brcmf_dbg(INFO, "comparing ssid \"%s\"", ssids[i].ssid);
|
|
|
+ if (!memcmp(BRCMF_P2P_WILDCARD_SSID, ssids[i].ssid,
|
|
|
+ BRCMF_P2P_WILDCARD_SSID_LEN))
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+ return false;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_set_discover_state - set discover state in firmware.
|
|
|
+ *
|
|
|
+ * @ifp: low-level interface object.
|
|
|
+ * @state: discover state to set.
|
|
|
+ * @chanspec: channel parameters (for state @WL_P2P_DISC_ST_LISTEN only).
|
|
|
+ * @listen_ms: duration to listen (for state @WL_P2P_DISC_ST_LISTEN only).
|
|
|
+ */
|
|
|
+static s32 brcmf_p2p_set_discover_state(struct brcmf_if *ifp, u8 state,
|
|
|
+ u16 chanspec, u16 listen_ms)
|
|
|
+{
|
|
|
+ struct brcmf_p2p_disc_st_le discover_state;
|
|
|
+ s32 ret = 0;
|
|
|
+ brcmf_dbg(TRACE, "enter\n");
|
|
|
+
|
|
|
+ discover_state.state = state;
|
|
|
+ discover_state.chspec = cpu_to_le16(chanspec);
|
|
|
+ discover_state.dwell = cpu_to_le16(listen_ms);
|
|
|
+ ret = brcmf_fil_bsscfg_data_set(ifp, "p2p_state", &discover_state,
|
|
|
+ sizeof(discover_state));
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_deinit_discovery() - disable P2P device discovery.
|
|
|
+ *
|
|
|
+ * @p2p: P2P specific data.
|
|
|
+ *
|
|
|
+ * Resets the discovery state and disables it in firmware.
|
|
|
+ */
|
|
|
+static s32 brcmf_p2p_deinit_discovery(struct brcmf_p2p_info *p2p)
|
|
|
+{
|
|
|
+ struct brcmf_cfg80211_vif *vif;
|
|
|
+
|
|
|
+ brcmf_dbg(TRACE, "enter\n");
|
|
|
+
|
|
|
+ /* Set the discovery state to SCAN */
|
|
|
+ vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
|
|
|
+ (void)brcmf_p2p_set_discover_state(vif->ifp, WL_P2P_DISC_ST_SCAN, 0, 0);
|
|
|
+
|
|
|
+ /* Disable P2P discovery in the firmware */
|
|
|
+ vif = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif;
|
|
|
+ (void)brcmf_fil_iovar_int_set(vif->ifp, "p2p_disc", 0);
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_enable_discovery() - initialize and configure discovery.
|
|
|
+ *
|
|
|
+ * @p2p: P2P specific data.
|
|
|
+ *
|
|
|
+ * Initializes the discovery device and configure the virtual interface.
|
|
|
+ */
|
|
|
+static int brcmf_p2p_enable_discovery(struct brcmf_p2p_info *p2p)
|
|
|
+{
|
|
|
+ struct brcmf_cfg80211_vif *vif;
|
|
|
+ s32 ret = 0;
|
|
|
+
|
|
|
+ brcmf_dbg(TRACE, "enter\n");
|
|
|
+ vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
|
|
|
+ if (!vif) {
|
|
|
+ brcmf_err("P2P config device not available\n");
|
|
|
+ ret = -EPERM;
|
|
|
+ goto exit;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (test_bit(BRCMF_P2P_STATUS_ENABLED, &p2p->status)) {
|
|
|
+ brcmf_dbg(INFO, "P2P config device already configured\n");
|
|
|
+ goto exit;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Re-initialize P2P Discovery in the firmware */
|
|
|
+ vif = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif;
|
|
|
+ ret = brcmf_fil_iovar_int_set(vif->ifp, "p2p_disc", 1);
|
|
|
+ if (ret < 0) {
|
|
|
+ brcmf_err("set p2p_disc error\n");
|
|
|
+ goto exit;
|
|
|
+ }
|
|
|
+ vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
|
|
|
+ ret = brcmf_p2p_set_discover_state(vif->ifp, WL_P2P_DISC_ST_SCAN, 0, 0);
|
|
|
+ if (ret < 0) {
|
|
|
+ brcmf_err("unable to set WL_P2P_DISC_ST_SCAN\n");
|
|
|
+ goto exit;
|
|
|
+ }
|
|
|
+
|
|
|
+ /*
|
|
|
+ * Set wsec to any non-zero value in the discovery bsscfg
|
|
|
+ * to ensure our P2P probe responses have the privacy bit
|
|
|
+ * set in the 802.11 WPA IE. Some peer devices may not
|
|
|
+ * initiate WPS with us if this bit is not set.
|
|
|
+ */
|
|
|
+ ret = brcmf_fil_bsscfg_int_set(vif->ifp, "wsec", AES_ENABLED);
|
|
|
+ if (ret < 0) {
|
|
|
+ brcmf_err("wsec error %d\n", ret);
|
|
|
+ goto exit;
|
|
|
+ }
|
|
|
+
|
|
|
+ set_bit(BRCMF_P2P_STATUS_ENABLED, &p2p->status);
|
|
|
+exit:
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_escan() - initiate a P2P scan.
|
|
|
+ *
|
|
|
+ * @p2p: P2P specific data.
|
|
|
+ * @num_chans: number of channels to scan.
|
|
|
+ * @chanspecs: channel parameters for @num_chans channels.
|
|
|
+ * @search_state: P2P discover state to use.
|
|
|
+ * @action: scan action to pass to firmware.
|
|
|
+ * @bss_type: type of P2P bss.
|
|
|
+ */
|
|
|
+static s32 brcmf_p2p_escan(struct brcmf_p2p_info *p2p, u32 num_chans,
|
|
|
+ u16 chanspecs[], s32 search_state, u16 action,
|
|
|
+ enum p2p_bss_type bss_type)
|
|
|
+{
|
|
|
+ s32 ret = 0;
|
|
|
+ s32 memsize = offsetof(struct brcmf_p2p_scan_le,
|
|
|
+ eparams.params_le.channel_list);
|
|
|
+ s32 nprobes;
|
|
|
+ s32 active;
|
|
|
+ u32 i;
|
|
|
+ u8 *memblk;
|
|
|
+ struct brcmf_cfg80211_vif *vif;
|
|
|
+ struct brcmf_p2p_scan_le *p2p_params;
|
|
|
+ struct brcmf_scan_params_le *sparams;
|
|
|
+ struct brcmf_ssid ssid;
|
|
|
+
|
|
|
+ memsize += num_chans * sizeof(__le16);
|
|
|
+ memblk = kzalloc(memsize, GFP_KERNEL);
|
|
|
+ if (!memblk)
|
|
|
+ return -ENOMEM;
|
|
|
+
|
|
|
+ vif = p2p->bss_idx[bss_type].vif;
|
|
|
+ if (vif == NULL) {
|
|
|
+ brcmf_err("no vif for bss type %d\n", bss_type);
|
|
|
+ ret = -EINVAL;
|
|
|
+ goto exit;
|
|
|
+ }
|
|
|
+
|
|
|
+ switch (search_state) {
|
|
|
+ case WL_P2P_DISC_ST_SEARCH:
|
|
|
+ /*
|
|
|
+ * If we in SEARCH STATE, we don't need to set SSID explictly
|
|
|
+ * because dongle use P2P WILDCARD internally by default
|
|
|
+ */
|
|
|
+ /* use null ssid */
|
|
|
+ ssid.SSID_len = 0;
|
|
|
+ memset(ssid.SSID, 0, sizeof(ssid.SSID));
|
|
|
+ break;
|
|
|
+ case WL_P2P_DISC_ST_SCAN:
|
|
|
+ /*
|
|
|
+ * wpa_supplicant has p2p_find command with type social or
|
|
|
+ * progressive. For progressive, we need to set the ssid to
|
|
|
+ * P2P WILDCARD because we just do broadcast scan unless
|
|
|
+ * setting SSID.
|
|
|
+ */
|
|
|
+ ssid.SSID_len = BRCMF_P2P_WILDCARD_SSID_LEN;
|
|
|
+ memcpy(ssid.SSID, BRCMF_P2P_WILDCARD_SSID, ssid.SSID_len);
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ brcmf_err(" invalid search state %d\n", search_state);
|
|
|
+ ret = -EINVAL;
|
|
|
+ goto exit;
|
|
|
+ }
|
|
|
+
|
|
|
+ brcmf_p2p_set_discover_state(vif->ifp, search_state, 0, 0);
|
|
|
+
|
|
|
+ /*
|
|
|
+ * set p2p scan parameters.
|
|
|
+ */
|
|
|
+ p2p_params = (struct brcmf_p2p_scan_le *)memblk;
|
|
|
+ p2p_params->type = 'E';
|
|
|
+
|
|
|
+ /* determine the scan engine parameters */
|
|
|
+ sparams = &p2p_params->eparams.params_le;
|
|
|
+ sparams->bss_type = DOT11_BSSTYPE_ANY;
|
|
|
+ if (p2p->cfg->active_scan)
|
|
|
+ sparams->scan_type = 0;
|
|
|
+ else
|
|
|
+ sparams->scan_type = 1;
|
|
|
+
|
|
|
+ memset(&sparams->bssid, 0xFF, ETH_ALEN);
|
|
|
+ if (ssid.SSID_len)
|
|
|
+ memcpy(sparams->ssid_le.SSID, ssid.SSID, ssid.SSID_len);
|
|
|
+ sparams->ssid_le.SSID_len = cpu_to_le32(ssid.SSID_len);
|
|
|
+ sparams->home_time = cpu_to_le32(P2PAPI_SCAN_HOME_TIME_MS);
|
|
|
+
|
|
|
+ /*
|
|
|
+ * SOCIAL_CHAN_CNT + 1 takes care of the Progressive scan
|
|
|
+ * supported by the supplicant.
|
|
|
+ */
|
|
|
+ if (num_chans == SOCIAL_CHAN_CNT || num_chans == (SOCIAL_CHAN_CNT + 1))
|
|
|
+ active = P2PAPI_SCAN_SOCIAL_DWELL_TIME_MS;
|
|
|
+ else if (num_chans == AF_PEER_SEARCH_CNT)
|
|
|
+ active = P2PAPI_SCAN_AF_SEARCH_DWELL_TIME_MS;
|
|
|
+ else if (wl_get_vif_state_all(p2p->cfg, BRCMF_VIF_STATUS_CONNECTED))
|
|
|
+ active = -1;
|
|
|
+ else
|
|
|
+ active = P2PAPI_SCAN_DWELL_TIME_MS;
|
|
|
+
|
|
|
+ /* Override scan params to find a peer for a connection */
|
|
|
+ if (num_chans == 1) {
|
|
|
+ active = WL_SCAN_CONNECT_DWELL_TIME_MS;
|
|
|
+ /* WAR to sync with presence period of VSDB GO.
|
|
|
+ * send probe request more frequently
|
|
|
+ */
|
|
|
+ nprobes = active / WL_SCAN_JOIN_PROBE_INTERVAL_MS;
|
|
|
+ } else {
|
|
|
+ nprobes = active / P2PAPI_SCAN_NPROBS_TIME_MS;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (nprobes <= 0)
|
|
|
+ nprobes = 1;
|
|
|
+
|
|
|
+ brcmf_dbg(INFO, "nprobes # %d, active_time %d\n", nprobes, active);
|
|
|
+ sparams->active_time = cpu_to_le32(active);
|
|
|
+ sparams->nprobes = cpu_to_le32(nprobes);
|
|
|
+ sparams->passive_time = cpu_to_le32(-1);
|
|
|
+ sparams->channel_num = cpu_to_le32(num_chans &
|
|
|
+ BRCMF_SCAN_PARAMS_COUNT_MASK);
|
|
|
+ for (i = 0; i < num_chans; i++)
|
|
|
+ sparams->channel_list[i] = cpu_to_le16(chanspecs[i]);
|
|
|
+
|
|
|
+ /* set the escan specific parameters */
|
|
|
+ p2p_params->eparams.version = cpu_to_le32(BRCMF_ESCAN_REQ_VERSION);
|
|
|
+ p2p_params->eparams.action = cpu_to_le16(action);
|
|
|
+ p2p_params->eparams.sync_id = cpu_to_le16(0x1234);
|
|
|
+ /* perform p2p scan on primary device */
|
|
|
+ ret = brcmf_fil_bsscfg_data_set(vif->ifp, "p2p_scan", memblk, memsize);
|
|
|
+ if (!ret)
|
|
|
+ set_bit(BRCMF_SCAN_STATUS_BUSY, &p2p->cfg->scan_status);
|
|
|
+exit:
|
|
|
+ kfree(memblk);
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_run_escan() - escan callback for peer-to-peer.
|
|
|
+ *
|
|
|
+ * @cfg: driver private data for cfg80211 interface.
|
|
|
+ * @ndev: net device for which scan is requested.
|
|
|
+ * @request: scan request from cfg80211.
|
|
|
+ * @action: scan action.
|
|
|
+ *
|
|
|
+ * Determines the P2P discovery state based to scan request parameters and
|
|
|
+ * validates the channels in the request.
|
|
|
+ */
|
|
|
+static s32 brcmf_p2p_run_escan(struct brcmf_cfg80211_info *cfg,
|
|
|
+ struct net_device *ndev,
|
|
|
+ struct cfg80211_scan_request *request,
|
|
|
+ u16 action)
|
|
|
+{
|
|
|
+ struct brcmf_p2p_info *p2p = &cfg->p2p;
|
|
|
+ s32 err = 0;
|
|
|
+ s32 search_state = WL_P2P_DISC_ST_SCAN;
|
|
|
+ struct brcmf_cfg80211_vif *vif;
|
|
|
+ struct net_device *dev = NULL;
|
|
|
+ int i, num_nodfs = 0;
|
|
|
+ u16 *chanspecs;
|
|
|
+
|
|
|
+ brcmf_dbg(TRACE, "enter\n");
|
|
|
+
|
|
|
+ if (!request) {
|
|
|
+ err = -EINVAL;
|
|
|
+ goto exit;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (request->n_channels) {
|
|
|
+ chanspecs = kcalloc(request->n_channels, sizeof(*chanspecs),
|
|
|
+ GFP_KERNEL);
|
|
|
+ if (!chanspecs) {
|
|
|
+ err = -ENOMEM;
|
|
|
+ goto exit;
|
|
|
+ }
|
|
|
+ vif = p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION].vif;
|
|
|
+ if (vif)
|
|
|
+ dev = vif->wdev.netdev;
|
|
|
+ if (request->n_channels == 3 &&
|
|
|
+ request->channels[0]->hw_value == SOCIAL_CHAN_1 &&
|
|
|
+ request->channels[1]->hw_value == SOCIAL_CHAN_2 &&
|
|
|
+ request->channels[2]->hw_value == SOCIAL_CHAN_3) {
|
|
|
+ /* SOCIAL CHANNELS 1, 6, 11 */
|
|
|
+ search_state = WL_P2P_DISC_ST_SEARCH;
|
|
|
+ brcmf_dbg(INFO, "P2P SEARCH PHASE START\n");
|
|
|
+ } else if (dev != NULL && vif->mode == WL_MODE_AP) {
|
|
|
+ /* If you are already a GO, then do SEARCH only */
|
|
|
+ brcmf_dbg(INFO, "Already a GO. Do SEARCH Only\n");
|
|
|
+ search_state = WL_P2P_DISC_ST_SEARCH;
|
|
|
+ } else {
|
|
|
+ brcmf_dbg(INFO, "P2P SCAN STATE START\n");
|
|
|
+ }
|
|
|
+
|
|
|
+ /*
|
|
|
+ * no P2P scanning on passive or DFS channels.
|
|
|
+ */
|
|
|
+ for (i = 0; i < request->n_channels; i++) {
|
|
|
+ struct ieee80211_channel *chan = request->channels[i];
|
|
|
+
|
|
|
+ if (chan->flags & (IEEE80211_CHAN_RADAR |
|
|
|
+ IEEE80211_CHAN_PASSIVE_SCAN))
|
|
|
+ continue;
|
|
|
+
|
|
|
+ chanspecs[i] = channel_to_chanspec(chan);
|
|
|
+ brcmf_dbg(INFO, "%d: chan=%d, channel spec=%x\n",
|
|
|
+ num_nodfs, chan->hw_value, chanspecs[i]);
|
|
|
+ num_nodfs++;
|
|
|
+ }
|
|
|
+ err = brcmf_p2p_escan(p2p, num_nodfs, chanspecs, search_state,
|
|
|
+ action, P2PAPI_BSSCFG_DEVICE);
|
|
|
+ }
|
|
|
+exit:
|
|
|
+ if (err)
|
|
|
+ brcmf_err("error (%d)\n", err);
|
|
|
+ return err;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_find_listen_channel() - find listen channel in ie string.
|
|
|
+ *
|
|
|
+ * @ie: string of information elements.
|
|
|
+ * @ie_len: length of string.
|
|
|
+ *
|
|
|
+ * Scan ie for p2p ie and look for attribute 6 channel. If available determine
|
|
|
+ * channel and return it.
|
|
|
+ */
|
|
|
+static s32 brcmf_p2p_find_listen_channel(const u8 *ie, u32 ie_len)
|
|
|
+{
|
|
|
+ u8 channel_ie[5];
|
|
|
+ s32 listen_channel;
|
|
|
+ s32 err;
|
|
|
+
|
|
|
+ err = cfg80211_get_p2p_attr(ie, ie_len,
|
|
|
+ IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
|
|
|
+ channel_ie, sizeof(channel_ie));
|
|
|
+ if (err < 0)
|
|
|
+ return err;
|
|
|
+
|
|
|
+ /* listen channel subel length format: */
|
|
|
+ /* 3(country) + 1(op. class) + 1(chan num) */
|
|
|
+ listen_channel = (s32)channel_ie[3 + 1];
|
|
|
+
|
|
|
+ if (listen_channel == SOCIAL_CHAN_1 ||
|
|
|
+ listen_channel == SOCIAL_CHAN_2 ||
|
|
|
+ listen_channel == SOCIAL_CHAN_3) {
|
|
|
+ brcmf_dbg(INFO, "Found my Listen Channel %d\n", listen_channel);
|
|
|
+ return listen_channel;
|
|
|
+ }
|
|
|
+
|
|
|
+ return -EPERM;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_scan_prep() - prepare scan based on request.
|
|
|
+ *
|
|
|
+ * @wiphy: wiphy device.
|
|
|
+ * @request: scan request from cfg80211.
|
|
|
+ * @vif: vif on which scan request is to be executed.
|
|
|
+ *
|
|
|
+ * Prepare the scan appropriately for type of scan requested. Overrides the
|
|
|
+ * escan .run() callback for peer-to-peer scanning.
|
|
|
+ */
|
|
|
+int brcmf_p2p_scan_prep(struct wiphy *wiphy,
|
|
|
+ struct cfg80211_scan_request *request,
|
|
|
+ struct brcmf_cfg80211_vif *vif)
|
|
|
+{
|
|
|
+ struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
|
|
|
+ struct brcmf_p2p_info *p2p = &cfg->p2p;
|
|
|
+ int err = 0;
|
|
|
+
|
|
|
+ if (brcmf_p2p_scan_is_p2p_request(request)) {
|
|
|
+ /* find my listen channel */
|
|
|
+ err = brcmf_p2p_find_listen_channel(request->ie,
|
|
|
+ request->ie_len);
|
|
|
+ if (err < 0)
|
|
|
+ return err;
|
|
|
+
|
|
|
+ p2p->afx_hdl.my_listen_chan = err;
|
|
|
+
|
|
|
+ clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status);
|
|
|
+ brcmf_dbg(INFO, "P2P: GO_NEG_PHASE status cleared\n");
|
|
|
+
|
|
|
+ err = brcmf_p2p_enable_discovery(p2p);
|
|
|
+ if (err)
|
|
|
+ return err;
|
|
|
+
|
|
|
+ vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
|
|
|
+
|
|
|
+ /* override .run_escan() callback. */
|
|
|
+ cfg->escan_info.run = brcmf_p2p_run_escan;
|
|
|
+ }
|
|
|
+ err = brcmf_vif_set_mgmt_ie(vif, BRCMF_VNDR_IE_PRBREQ_FLAG,
|
|
|
+ request->ie, request->ie_len);
|
|
|
+ return err;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_discover_listen() - set firmware to discover listen state.
|
|
|
+ *
|
|
|
+ * @p2p: p2p device.
|
|
|
+ * @channel: channel nr for discover listen.
|
|
|
+ * @duration: time in ms to stay on channel.
|
|
|
+ *
|
|
|
+ */
|
|
|
+static s32
|
|
|
+brcmf_p2p_discover_listen(struct brcmf_p2p_info *p2p, u16 channel, u32 duration)
|
|
|
+{
|
|
|
+ struct brcmf_cfg80211_vif *vif;
|
|
|
+ s32 err = 0;
|
|
|
+ u16 chanspec;
|
|
|
+
|
|
|
+ vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
|
|
|
+ if (!vif) {
|
|
|
+ brcmf_err("Discovery is not set, so we have nothing to do\n");
|
|
|
+ err = -EPERM;
|
|
|
+ goto exit;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (test_bit(BRCMF_P2P_STATUS_DISCOVER_LISTEN, &p2p->status)) {
|
|
|
+ brcmf_err("Previous LISTEN is not completed yet\n");
|
|
|
+ /* WAR: prevent cookie mismatch in wpa_supplicant return OK */
|
|
|
+ goto exit;
|
|
|
+ }
|
|
|
+
|
|
|
+ chanspec = brcmf_p2p_chnr_to_chspec(channel);
|
|
|
+ err = brcmf_p2p_set_discover_state(vif->ifp, WL_P2P_DISC_ST_LISTEN,
|
|
|
+ chanspec, (u16)duration);
|
|
|
+ if (!err) {
|
|
|
+ set_bit(BRCMF_P2P_STATUS_DISCOVER_LISTEN, &p2p->status);
|
|
|
+ p2p->remain_on_channel_cookie++;
|
|
|
+ }
|
|
|
+exit:
|
|
|
+ return err;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_remain_on_channel() - put device on channel and stay there.
|
|
|
+ *
|
|
|
+ * @wiphy: wiphy device.
|
|
|
+ * @channel: channel to stay on.
|
|
|
+ * @duration: time in ms to remain on channel.
|
|
|
+ *
|
|
|
+ */
|
|
|
+int brcmf_p2p_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
|
|
|
+ struct ieee80211_channel *channel,
|
|
|
+ unsigned int duration, u64 *cookie)
|
|
|
+{
|
|
|
+ struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
|
|
|
+ struct brcmf_p2p_info *p2p = &cfg->p2p;
|
|
|
+ s32 err;
|
|
|
+ u16 channel_nr;
|
|
|
+
|
|
|
+ channel_nr = ieee80211_frequency_to_channel(channel->center_freq);
|
|
|
+ brcmf_dbg(TRACE, "Enter, channel: %d, duration ms (%d)\n", channel_nr,
|
|
|
+ duration);
|
|
|
+
|
|
|
+ err = brcmf_p2p_enable_discovery(p2p);
|
|
|
+ if (err)
|
|
|
+ goto exit;
|
|
|
+ err = brcmf_p2p_discover_listen(p2p, channel_nr, duration);
|
|
|
+ if (err)
|
|
|
+ goto exit;
|
|
|
+
|
|
|
+ memcpy(&p2p->remain_on_channel, channel, sizeof(*channel));
|
|
|
+ *cookie = p2p->remain_on_channel_cookie;
|
|
|
+ cfg80211_ready_on_channel(wdev, *cookie, channel, duration, GFP_KERNEL);
|
|
|
+
|
|
|
+exit:
|
|
|
+ return err;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_notify_listen_complete() - p2p listen has completed.
|
|
|
+ *
|
|
|
+ * @ifp: interfac control.
|
|
|
+ * @e: event message. Not used, to make it usable for fweh event dispatcher.
|
|
|
+ * @data: payload of message. Not used.
|
|
|
+ *
|
|
|
+ */
|
|
|
+int brcmf_p2p_notify_listen_complete(struct brcmf_if *ifp,
|
|
|
+ const struct brcmf_event_msg *e,
|
|
|
+ void *data)
|
|
|
+{
|
|
|
+ struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
|
|
|
+ struct brcmf_p2p_info *p2p = &cfg->p2p;
|
|
|
+
|
|
|
+ brcmf_dbg(TRACE, "Enter\n");
|
|
|
+ if (test_and_clear_bit(BRCMF_P2P_STATUS_DISCOVER_LISTEN,
|
|
|
+ &p2p->status)) {
|
|
|
+ if (test_and_clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN,
|
|
|
+ &p2p->status)) {
|
|
|
+ clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME,
|
|
|
+ &p2p->status);
|
|
|
+ brcmf_dbg(INFO, "Listen DONE, wake up wait_next_af\n");
|
|
|
+ complete(&p2p->wait_next_af);
|
|
|
+ }
|
|
|
+
|
|
|
+ cfg80211_remain_on_channel_expired(&ifp->vif->wdev,
|
|
|
+ p2p->remain_on_channel_cookie,
|
|
|
+ &p2p->remain_on_channel,
|
|
|
+ GFP_KERNEL);
|
|
|
+ }
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_cancel_remain_on_channel() - cancel p2p listen state.
|
|
|
+ *
|
|
|
+ * @ifp: interfac control.
|
|
|
+ *
|
|
|
+ */
|
|
|
+void brcmf_p2p_cancel_remain_on_channel(struct brcmf_if *ifp)
|
|
|
+{
|
|
|
+ if (!ifp)
|
|
|
+ return;
|
|
|
+ brcmf_p2p_set_discover_state(ifp, WL_P2P_DISC_ST_SCAN, 0, 0);
|
|
|
+ brcmf_p2p_notify_listen_complete(ifp, NULL, NULL);
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_act_frm_search() - search function for action frame.
|
|
|
+ *
|
|
|
+ * @p2p: p2p device.
|
|
|
+ * channel: channel on which action frame is to be trasmitted.
|
|
|
+ *
|
|
|
+ * search function to reach at common channel to send action frame. When
|
|
|
+ * channel is 0 then all social channels will be used to send af
|
|
|
+ */
|
|
|
+static s32 brcmf_p2p_act_frm_search(struct brcmf_p2p_info *p2p, u16 channel)
|
|
|
+{
|
|
|
+ s32 err;
|
|
|
+ u32 channel_cnt;
|
|
|
+ u16 *default_chan_list;
|
|
|
+ u32 i;
|
|
|
+
|
|
|
+ brcmf_dbg(TRACE, "Enter\n");
|
|
|
+
|
|
|
+ if (channel)
|
|
|
+ channel_cnt = AF_PEER_SEARCH_CNT;
|
|
|
+ else
|
|
|
+ channel_cnt = SOCIAL_CHAN_CNT;
|
|
|
+ default_chan_list = kzalloc(channel_cnt * sizeof(*default_chan_list),
|
|
|
+ GFP_KERNEL);
|
|
|
+ if (default_chan_list == NULL) {
|
|
|
+ brcmf_err("channel list allocation failed\n");
|
|
|
+ err = -ENOMEM;
|
|
|
+ goto exit;
|
|
|
+ }
|
|
|
+ if (channel) {
|
|
|
+ /* insert same channel to the chan_list */
|
|
|
+ for (i = 0; i < channel_cnt; i++)
|
|
|
+ default_chan_list[i] =
|
|
|
+ brcmf_p2p_chnr_to_chspec(channel);
|
|
|
+ } else {
|
|
|
+ default_chan_list[0] = brcmf_p2p_chnr_to_chspec(SOCIAL_CHAN_1);
|
|
|
+ default_chan_list[1] = brcmf_p2p_chnr_to_chspec(SOCIAL_CHAN_2);
|
|
|
+ default_chan_list[2] = brcmf_p2p_chnr_to_chspec(SOCIAL_CHAN_3);
|
|
|
+ }
|
|
|
+ err = brcmf_p2p_escan(p2p, channel_cnt, default_chan_list,
|
|
|
+ WL_P2P_DISC_ST_SEARCH, WL_ESCAN_ACTION_START,
|
|
|
+ P2PAPI_BSSCFG_DEVICE);
|
|
|
+ kfree(default_chan_list);
|
|
|
+exit:
|
|
|
+ return err;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_afx_handler() - afx worker thread.
|
|
|
+ *
|
|
|
+ * @work:
|
|
|
+ *
|
|
|
+ */
|
|
|
+static void brcmf_p2p_afx_handler(struct work_struct *work)
|
|
|
+{
|
|
|
+ struct afx_hdl *afx_hdl = container_of(work, struct afx_hdl, afx_work);
|
|
|
+ struct brcmf_p2p_info *p2p = container_of(afx_hdl,
|
|
|
+ struct brcmf_p2p_info,
|
|
|
+ afx_hdl);
|
|
|
+ s32 err;
|
|
|
+
|
|
|
+ if (!afx_hdl->is_active)
|
|
|
+ return;
|
|
|
+
|
|
|
+ if (afx_hdl->is_listen && afx_hdl->my_listen_chan)
|
|
|
+ /* 100ms ~ 300ms */
|
|
|
+ err = brcmf_p2p_discover_listen(p2p, afx_hdl->my_listen_chan,
|
|
|
+ 100 * (1 + (random32() % 3)));
|
|
|
+ else
|
|
|
+ err = brcmf_p2p_act_frm_search(p2p, afx_hdl->peer_listen_chan);
|
|
|
+
|
|
|
+ if (err) {
|
|
|
+ brcmf_err("ERROR occurred! value is (%d)\n", err);
|
|
|
+ if (test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL,
|
|
|
+ &p2p->status))
|
|
|
+ complete(&afx_hdl->act_frm_scan);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_af_searching_channel() - search channel.
|
|
|
+ *
|
|
|
+ * @p2p: p2p device info struct.
|
|
|
+ *
|
|
|
+ */
|
|
|
+static s32 brcmf_p2p_af_searching_channel(struct brcmf_p2p_info *p2p)
|
|
|
+{
|
|
|
+ struct afx_hdl *afx_hdl = &p2p->afx_hdl;
|
|
|
+ struct brcmf_cfg80211_vif *pri_vif;
|
|
|
+ unsigned long duration;
|
|
|
+ s32 retry;
|
|
|
+
|
|
|
+ brcmf_dbg(TRACE, "Enter\n");
|
|
|
+
|
|
|
+ pri_vif = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif;
|
|
|
+
|
|
|
+ INIT_COMPLETION(afx_hdl->act_frm_scan);
|
|
|
+ set_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, &p2p->status);
|
|
|
+ afx_hdl->is_active = true;
|
|
|
+ afx_hdl->peer_chan = P2P_INVALID_CHANNEL;
|
|
|
+
|
|
|
+ /* Loop to wait until we find a peer's channel or the
|
|
|
+ * pending action frame tx is cancelled.
|
|
|
+ */
|
|
|
+ retry = 0;
|
|
|
+ duration = msecs_to_jiffies(P2P_AF_FRM_SCAN_MAX_WAIT);
|
|
|
+ while ((retry < P2P_CHANNEL_SYNC_RETRY) &&
|
|
|
+ (afx_hdl->peer_chan == P2P_INVALID_CHANNEL)) {
|
|
|
+ afx_hdl->is_listen = false;
|
|
|
+ brcmf_dbg(TRACE, "Scheduling action frame for sending.. (%d)\n",
|
|
|
+ retry);
|
|
|
+ /* search peer on peer's listen channel */
|
|
|
+ schedule_work(&afx_hdl->afx_work);
|
|
|
+ wait_for_completion_timeout(&afx_hdl->act_frm_scan, duration);
|
|
|
+ if ((afx_hdl->peer_chan != P2P_INVALID_CHANNEL) ||
|
|
|
+ (!test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL,
|
|
|
+ &p2p->status)))
|
|
|
+ break;
|
|
|
+
|
|
|
+ if (afx_hdl->my_listen_chan) {
|
|
|
+ brcmf_dbg(TRACE, "Scheduling listen peer, channel=%d\n",
|
|
|
+ afx_hdl->my_listen_chan);
|
|
|
+ /* listen on my listen channel */
|
|
|
+ afx_hdl->is_listen = true;
|
|
|
+ schedule_work(&afx_hdl->afx_work);
|
|
|
+ wait_for_completion_timeout(&afx_hdl->act_frm_scan,
|
|
|
+ duration);
|
|
|
+ }
|
|
|
+ if ((afx_hdl->peer_chan != P2P_INVALID_CHANNEL) ||
|
|
|
+ (!test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL,
|
|
|
+ &p2p->status)))
|
|
|
+ break;
|
|
|
+ retry++;
|
|
|
+
|
|
|
+ /* if sta is connected or connecting, sleep for a while before
|
|
|
+ * retry af tx or finding a peer
|
|
|
+ */
|
|
|
+ if (test_bit(BRCMF_VIF_STATUS_CONNECTED, &pri_vif->sme_state) ||
|
|
|
+ test_bit(BRCMF_VIF_STATUS_CONNECTING, &pri_vif->sme_state))
|
|
|
+ msleep(P2P_DEFAULT_SLEEP_TIME_VSDB);
|
|
|
+ }
|
|
|
+
|
|
|
+ brcmf_dbg(TRACE, "Completed search/listen peer_chan=%d\n",
|
|
|
+ afx_hdl->peer_chan);
|
|
|
+ afx_hdl->is_active = false;
|
|
|
+
|
|
|
+ clear_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, &p2p->status);
|
|
|
+
|
|
|
+ return afx_hdl->peer_chan;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_scan_finding_common_channel() - was escan used for finding channel
|
|
|
+ *
|
|
|
+ * @cfg: common configuration struct.
|
|
|
+ * @bi: bss info struct, result from scan.
|
|
|
+ *
|
|
|
+ */
|
|
|
+bool brcmf_p2p_scan_finding_common_channel(struct brcmf_cfg80211_info *cfg,
|
|
|
+ struct brcmf_bss_info_le *bi)
|
|
|
+
|
|
|
+{
|
|
|
+ struct brcmf_p2p_info *p2p = &cfg->p2p;
|
|
|
+ struct afx_hdl *afx_hdl = &p2p->afx_hdl;
|
|
|
+ u8 *ie;
|
|
|
+ s32 err;
|
|
|
+ u8 p2p_dev_addr[ETH_ALEN];
|
|
|
+
|
|
|
+ if (!test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, &p2p->status))
|
|
|
+ return false;
|
|
|
+
|
|
|
+ if (bi == NULL) {
|
|
|
+ brcmf_dbg(TRACE, "ACTION FRAME SCAN Done\n");
|
|
|
+ if (afx_hdl->peer_chan == P2P_INVALID_CHANNEL)
|
|
|
+ complete(&afx_hdl->act_frm_scan);
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+
|
|
|
+ ie = ((u8 *)bi) + le16_to_cpu(bi->ie_offset);
|
|
|
+ memset(p2p_dev_addr, 0, sizeof(p2p_dev_addr));
|
|
|
+ err = cfg80211_get_p2p_attr(ie, le32_to_cpu(bi->ie_length),
|
|
|
+ IEEE80211_P2P_ATTR_DEVICE_INFO,
|
|
|
+ p2p_dev_addr, sizeof(p2p_dev_addr));
|
|
|
+ if (err < 0)
|
|
|
+ err = cfg80211_get_p2p_attr(ie, le32_to_cpu(bi->ie_length),
|
|
|
+ IEEE80211_P2P_ATTR_DEVICE_ID,
|
|
|
+ p2p_dev_addr, sizeof(p2p_dev_addr));
|
|
|
+ if ((err >= 0) &&
|
|
|
+ (!memcmp(p2p_dev_addr, afx_hdl->tx_dst_addr, ETH_ALEN))) {
|
|
|
+ afx_hdl->peer_chan = bi->ctl_ch ? bi->ctl_ch :
|
|
|
+ CHSPEC_CHANNEL(le16_to_cpu(bi->chanspec));
|
|
|
+ brcmf_dbg(TRACE, "ACTION FRAME SCAN : Peer %pM found, channel : %d\n",
|
|
|
+ afx_hdl->tx_dst_addr, afx_hdl->peer_chan);
|
|
|
+ complete(&afx_hdl->act_frm_scan);
|
|
|
+ }
|
|
|
+ return true;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_stop_wait_next_action_frame() - finish scan if af tx complete.
|
|
|
+ *
|
|
|
+ * @cfg: common configuration struct.
|
|
|
+ *
|
|
|
+ */
|
|
|
+static void
|
|
|
+brcmf_p2p_stop_wait_next_action_frame(struct brcmf_cfg80211_info *cfg)
|
|
|
+{
|
|
|
+ struct brcmf_p2p_info *p2p = &cfg->p2p;
|
|
|
+ struct net_device *ndev = cfg->escan_info.ndev;
|
|
|
+
|
|
|
+ if (test_bit(BRCMF_P2P_STATUS_SENDING_ACT_FRAME, &p2p->status) &&
|
|
|
+ (test_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, &p2p->status) ||
|
|
|
+ test_bit(BRCMF_P2P_STATUS_ACTION_TX_NOACK, &p2p->status))) {
|
|
|
+ brcmf_dbg(TRACE, "*** Wake UP ** abort actframe iovar\n");
|
|
|
+ /* if channel is not zero, "actfame" uses off channel scan.
|
|
|
+ * So abort scan for off channel completion.
|
|
|
+ */
|
|
|
+ if (p2p->af_sent_channel)
|
|
|
+ brcmf_notify_escan_complete(cfg, ndev, true, true);
|
|
|
+ } else if (test_bit(BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN,
|
|
|
+ &p2p->status)) {
|
|
|
+ brcmf_dbg(TRACE, "*** Wake UP ** abort listen for next af frame\n");
|
|
|
+ /* So abort scan to cancel listen */
|
|
|
+ brcmf_notify_escan_complete(cfg, ndev, true, true);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_gon_req_collision() - Check if go negotiaton collission
|
|
|
+ *
|
|
|
+ * @p2p: p2p device info struct.
|
|
|
+ *
|
|
|
+ * return true if recevied action frame is to be dropped.
|
|
|
+ */
|
|
|
+static bool
|
|
|
+brcmf_p2p_gon_req_collision(struct brcmf_p2p_info *p2p, u8 *mac)
|
|
|
+{
|
|
|
+ struct brcmf_cfg80211_info *cfg = p2p->cfg;
|
|
|
+ struct brcmf_if *ifp;
|
|
|
+
|
|
|
+ brcmf_dbg(TRACE, "Enter\n");
|
|
|
+
|
|
|
+ if (!test_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, &p2p->status) ||
|
|
|
+ !p2p->gon_req_action)
|
|
|
+ return false;
|
|
|
+
|
|
|
+ brcmf_dbg(TRACE, "GO Negotiation Request COLLISION !!!\n");
|
|
|
+ /* if sa(peer) addr is less than da(my) addr, then this device
|
|
|
+ * process peer's gon request and block to send gon req.
|
|
|
+ * if not (sa addr > da addr),
|
|
|
+ * this device will process gon request and drop gon req of peer.
|
|
|
+ */
|
|
|
+ ifp = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif->ifp;
|
|
|
+ if (memcmp(mac, ifp->mac_addr, ETH_ALEN) < 0) {
|
|
|
+ brcmf_dbg(INFO, "Block transmit gon req !!!\n");
|
|
|
+ p2p->block_gon_req_tx = true;
|
|
|
+ /* if we are finding a common channel for sending af,
|
|
|
+ * do not scan more to block to send current gon req
|
|
|
+ */
|
|
|
+ if (test_and_clear_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL,
|
|
|
+ &p2p->status))
|
|
|
+ complete(&p2p->afx_hdl.act_frm_scan);
|
|
|
+ if (test_and_clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME,
|
|
|
+ &p2p->status))
|
|
|
+ brcmf_p2p_stop_wait_next_action_frame(cfg);
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* drop gon request of peer to process gon request by this device. */
|
|
|
+ brcmf_dbg(INFO, "Drop received gon req !!!\n");
|
|
|
+
|
|
|
+ return true;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_notify_action_frame_rx() - received action frame.
|
|
|
+ *
|
|
|
+ * @ifp: interfac control.
|
|
|
+ * @e: event message. Not used, to make it usable for fweh event dispatcher.
|
|
|
+ * @data: payload of message, containing action frame data.
|
|
|
+ *
|
|
|
+ */
|
|
|
+int brcmf_p2p_notify_action_frame_rx(struct brcmf_if *ifp,
|
|
|
+ const struct brcmf_event_msg *e,
|
|
|
+ void *data)
|
|
|
+{
|
|
|
+ struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
|
|
|
+ struct brcmf_p2p_info *p2p = &cfg->p2p;
|
|
|
+ struct afx_hdl *afx_hdl = &p2p->afx_hdl;
|
|
|
+ struct wireless_dev *wdev;
|
|
|
+ u32 mgmt_frame_len = e->datalen - sizeof(struct brcmf_rx_mgmt_data);
|
|
|
+ struct brcmf_rx_mgmt_data *rxframe = (struct brcmf_rx_mgmt_data *)data;
|
|
|
+ u8 *frame = (u8 *)(rxframe + 1);
|
|
|
+ struct brcmf_p2p_pub_act_frame *act_frm;
|
|
|
+ struct brcmf_p2psd_gas_pub_act_frame *sd_act_frm;
|
|
|
+ u16 chanspec = be16_to_cpu(rxframe->chanspec);
|
|
|
+ struct ieee80211_mgmt *mgmt_frame;
|
|
|
+ s32 freq;
|
|
|
+ u16 mgmt_type;
|
|
|
+ u8 action;
|
|
|
+
|
|
|
+ /* Check if wpa_supplicant has registered for this frame */
|
|
|
+ brcmf_dbg(INFO, "ifp->vif->mgmt_rx_reg %04x\n", ifp->vif->mgmt_rx_reg);
|
|
|
+ mgmt_type = (IEEE80211_STYPE_ACTION & IEEE80211_FCTL_STYPE) >> 4;
|
|
|
+ if ((ifp->vif->mgmt_rx_reg & BIT(mgmt_type)) == 0)
|
|
|
+ return 0;
|
|
|
+
|
|
|
+ brcmf_p2p_print_actframe(false, frame, mgmt_frame_len);
|
|
|
+
|
|
|
+ action = P2P_PAF_SUBTYPE_INVALID;
|
|
|
+ if (brcmf_p2p_is_pub_action(frame, mgmt_frame_len)) {
|
|
|
+ act_frm = (struct brcmf_p2p_pub_act_frame *)frame;
|
|
|
+ action = act_frm->subtype;
|
|
|
+ if ((action == P2P_PAF_GON_REQ) &&
|
|
|
+ (brcmf_p2p_gon_req_collision(p2p, (u8 *)e->addr))) {
|
|
|
+ if (test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL,
|
|
|
+ &p2p->status) &&
|
|
|
+ (memcmp(afx_hdl->tx_dst_addr, e->addr,
|
|
|
+ ETH_ALEN) == 0)) {
|
|
|
+ afx_hdl->peer_chan = CHSPEC_CHANNEL(chanspec);
|
|
|
+ brcmf_dbg(INFO, "GON request: Peer found, channel=%d\n",
|
|
|
+ afx_hdl->peer_chan);
|
|
|
+ complete(&afx_hdl->act_frm_scan);
|
|
|
+ }
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+ /* After complete GO Negotiation, roll back to mpc mode */
|
|
|
+ if ((action == P2P_PAF_GON_CONF) ||
|
|
|
+ (action == P2P_PAF_PROVDIS_RSP))
|
|
|
+ brcmf_set_mpc(ifp->ndev, 1);
|
|
|
+ if (action == P2P_PAF_GON_CONF) {
|
|
|
+ brcmf_dbg(TRACE, "P2P: GO_NEG_PHASE status cleared\n");
|
|
|
+ clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status);
|
|
|
+ }
|
|
|
+ } else if (brcmf_p2p_is_gas_action(frame, mgmt_frame_len)) {
|
|
|
+ sd_act_frm = (struct brcmf_p2psd_gas_pub_act_frame *)frame;
|
|
|
+ action = sd_act_frm->action;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (test_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, &p2p->status) &&
|
|
|
+ (p2p->next_af_subtype == action)) {
|
|
|
+ brcmf_dbg(TRACE, "We got a right next frame! (%d)\n", action);
|
|
|
+ clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME,
|
|
|
+ &p2p->status);
|
|
|
+ /* Stop waiting for next AF. */
|
|
|
+ brcmf_p2p_stop_wait_next_action_frame(cfg);
|
|
|
+ }
|
|
|
+
|
|
|
+ mgmt_frame = kzalloc(offsetof(struct ieee80211_mgmt, u) +
|
|
|
+ mgmt_frame_len, GFP_KERNEL);
|
|
|
+ if (!mgmt_frame) {
|
|
|
+ brcmf_err("No memory available for action frame\n");
|
|
|
+ return -ENOMEM;
|
|
|
+ }
|
|
|
+ memcpy(mgmt_frame->da, ifp->mac_addr, ETH_ALEN);
|
|
|
+ brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_BSSID, mgmt_frame->bssid,
|
|
|
+ ETH_ALEN);
|
|
|
+ memcpy(mgmt_frame->sa, e->addr, ETH_ALEN);
|
|
|
+ mgmt_frame->frame_control = cpu_to_le16(IEEE80211_STYPE_ACTION);
|
|
|
+ memcpy(&mgmt_frame->u, frame, mgmt_frame_len);
|
|
|
+ mgmt_frame_len += offsetof(struct ieee80211_mgmt, u);
|
|
|
+
|
|
|
+ freq = ieee80211_channel_to_frequency(CHSPEC_CHANNEL(chanspec),
|
|
|
+ CHSPEC_IS2G(chanspec) ?
|
|
|
+ IEEE80211_BAND_2GHZ :
|
|
|
+ IEEE80211_BAND_5GHZ);
|
|
|
+ wdev = ifp->ndev->ieee80211_ptr;
|
|
|
+ cfg80211_rx_mgmt(wdev, freq, 0, (u8 *)mgmt_frame, mgmt_frame_len,
|
|
|
+ GFP_ATOMIC);
|
|
|
+
|
|
|
+ kfree(mgmt_frame);
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_notify_action_tx_complete() - transmit action frame complete
|
|
|
+ *
|
|
|
+ * @ifp: interfac control.
|
|
|
+ * @e: event message. Not used, to make it usable for fweh event dispatcher.
|
|
|
+ * @data: not used.
|
|
|
+ *
|
|
|
+ */
|
|
|
+int brcmf_p2p_notify_action_tx_complete(struct brcmf_if *ifp,
|
|
|
+ const struct brcmf_event_msg *e,
|
|
|
+ void *data)
|
|
|
+{
|
|
|
+ struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
|
|
|
+ struct brcmf_p2p_info *p2p = &cfg->p2p;
|
|
|
+
|
|
|
+ brcmf_dbg(INFO, "Enter: event %s, status=%d\n",
|
|
|
+ e->event_code == BRCMF_E_ACTION_FRAME_OFF_CHAN_COMPLETE ?
|
|
|
+ "ACTION_FRAME_OFF_CHAN_COMPLETE" : "ACTION_FRAME_COMPLETE",
|
|
|
+ e->status);
|
|
|
+
|
|
|
+ if (!test_bit(BRCMF_P2P_STATUS_SENDING_ACT_FRAME, &p2p->status))
|
|
|
+ return 0;
|
|
|
+
|
|
|
+ if (e->event_code == BRCMF_E_ACTION_FRAME_COMPLETE) {
|
|
|
+ if (e->status == BRCMF_E_STATUS_SUCCESS)
|
|
|
+ set_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED,
|
|
|
+ &p2p->status);
|
|
|
+ else {
|
|
|
+ set_bit(BRCMF_P2P_STATUS_ACTION_TX_NOACK, &p2p->status);
|
|
|
+ /* If there is no ack, we don't need to wait for
|
|
|
+ * WLC_E_ACTION_FRAME_OFFCHAN_COMPLETE event
|
|
|
+ */
|
|
|
+ brcmf_p2p_stop_wait_next_action_frame(cfg);
|
|
|
+ }
|
|
|
+
|
|
|
+ } else {
|
|
|
+ complete(&p2p->send_af_done);
|
|
|
+ }
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_tx_action_frame() - send action frame over fil.
|
|
|
+ *
|
|
|
+ * @p2p: p2p info struct for vif.
|
|
|
+ * @af_params: action frame data/info.
|
|
|
+ *
|
|
|
+ * Send an action frame immediately without doing channel synchronization.
|
|
|
+ *
|
|
|
+ * This function waits for a completion event before returning.
|
|
|
+ * The WLC_E_ACTION_FRAME_COMPLETE event will be received when the action
|
|
|
+ * frame is transmitted.
|
|
|
+ */
|
|
|
+static s32 brcmf_p2p_tx_action_frame(struct brcmf_p2p_info *p2p,
|
|
|
+ struct brcmf_fil_af_params_le *af_params)
|
|
|
+{
|
|
|
+ struct brcmf_cfg80211_vif *vif;
|
|
|
+ s32 err = 0;
|
|
|
+ s32 timeout = 0;
|
|
|
+
|
|
|
+ brcmf_dbg(TRACE, "Enter\n");
|
|
|
+
|
|
|
+ INIT_COMPLETION(p2p->send_af_done);
|
|
|
+ clear_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, &p2p->status);
|
|
|
+ clear_bit(BRCMF_P2P_STATUS_ACTION_TX_NOACK, &p2p->status);
|
|
|
+
|
|
|
+ vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
|
|
|
+ err = brcmf_fil_bsscfg_data_set(vif->ifp, "actframe", af_params,
|
|
|
+ sizeof(*af_params));
|
|
|
+ if (err) {
|
|
|
+ brcmf_err(" sending action frame has failed\n");
|
|
|
+ goto exit;
|
|
|
+ }
|
|
|
+
|
|
|
+ p2p->af_sent_channel = le32_to_cpu(af_params->channel);
|
|
|
+ p2p->af_tx_sent_jiffies = jiffies;
|
|
|
+
|
|
|
+ timeout = wait_for_completion_timeout(&p2p->send_af_done,
|
|
|
+ msecs_to_jiffies(P2P_AF_MAX_WAIT_TIME));
|
|
|
+
|
|
|
+ if (test_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, &p2p->status)) {
|
|
|
+ brcmf_dbg(TRACE, "TX action frame operation is success\n");
|
|
|
+ } else {
|
|
|
+ err = -EIO;
|
|
|
+ brcmf_dbg(TRACE, "TX action frame operation has failed\n");
|
|
|
+ }
|
|
|
+ /* clear status bit for action tx */
|
|
|
+ clear_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, &p2p->status);
|
|
|
+ clear_bit(BRCMF_P2P_STATUS_ACTION_TX_NOACK, &p2p->status);
|
|
|
+
|
|
|
+exit:
|
|
|
+ return err;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_pub_af_tx() - public action frame tx routine.
|
|
|
+ *
|
|
|
+ * @cfg: driver private data for cfg80211 interface.
|
|
|
+ * @af_params: action frame data/info.
|
|
|
+ * @config_af_params: configuration data for action frame.
|
|
|
+ *
|
|
|
+ * routine which transmits ation frame public type.
|
|
|
+ */
|
|
|
+static s32 brcmf_p2p_pub_af_tx(struct brcmf_cfg80211_info *cfg,
|
|
|
+ struct brcmf_fil_af_params_le *af_params,
|
|
|
+ struct brcmf_config_af_params *config_af_params)
|
|
|
+{
|
|
|
+ struct brcmf_p2p_info *p2p = &cfg->p2p;
|
|
|
+ struct brcmf_fil_action_frame_le *action_frame;
|
|
|
+ struct brcmf_p2p_pub_act_frame *act_frm;
|
|
|
+ s32 err = 0;
|
|
|
+ u16 ie_len;
|
|
|
+
|
|
|
+ action_frame = &af_params->action_frame;
|
|
|
+ act_frm = (struct brcmf_p2p_pub_act_frame *)(action_frame->data);
|
|
|
+
|
|
|
+ config_af_params->extra_listen = true;
|
|
|
+
|
|
|
+ switch (act_frm->subtype) {
|
|
|
+ case P2P_PAF_GON_REQ:
|
|
|
+ brcmf_dbg(TRACE, "P2P: GO_NEG_PHASE status set\n");
|
|
|
+ set_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status);
|
|
|
+ config_af_params->mpc_onoff = 0;
|
|
|
+ config_af_params->search_channel = true;
|
|
|
+ p2p->next_af_subtype = act_frm->subtype + 1;
|
|
|
+ p2p->gon_req_action = true;
|
|
|
+ /* increase dwell time to wait for RESP frame */
|
|
|
+ af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME);
|
|
|
+ break;
|
|
|
+ case P2P_PAF_GON_RSP:
|
|
|
+ p2p->next_af_subtype = act_frm->subtype + 1;
|
|
|
+ /* increase dwell time to wait for CONF frame */
|
|
|
+ af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME);
|
|
|
+ break;
|
|
|
+ case P2P_PAF_GON_CONF:
|
|
|
+ /* If we reached till GO Neg confirmation reset the filter */
|
|
|
+ brcmf_dbg(TRACE, "P2P: GO_NEG_PHASE status cleared\n");
|
|
|
+ clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status);
|
|
|
+ /* turn on mpc again if go nego is done */
|
|
|
+ config_af_params->mpc_onoff = 1;
|
|
|
+ /* minimize dwell time */
|
|
|
+ af_params->dwell_time = cpu_to_le32(P2P_AF_MIN_DWELL_TIME);
|
|
|
+ config_af_params->extra_listen = false;
|
|
|
+ break;
|
|
|
+ case P2P_PAF_INVITE_REQ:
|
|
|
+ config_af_params->search_channel = true;
|
|
|
+ p2p->next_af_subtype = act_frm->subtype + 1;
|
|
|
+ /* increase dwell time */
|
|
|
+ af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME);
|
|
|
+ break;
|
|
|
+ case P2P_PAF_INVITE_RSP:
|
|
|
+ /* minimize dwell time */
|
|
|
+ af_params->dwell_time = cpu_to_le32(P2P_AF_MIN_DWELL_TIME);
|
|
|
+ config_af_params->extra_listen = false;
|
|
|
+ break;
|
|
|
+ case P2P_PAF_DEVDIS_REQ:
|
|
|
+ config_af_params->search_channel = true;
|
|
|
+ p2p->next_af_subtype = act_frm->subtype + 1;
|
|
|
+ /* maximize dwell time to wait for RESP frame */
|
|
|
+ af_params->dwell_time = cpu_to_le32(P2P_AF_LONG_DWELL_TIME);
|
|
|
+ break;
|
|
|
+ case P2P_PAF_DEVDIS_RSP:
|
|
|
+ /* minimize dwell time */
|
|
|
+ af_params->dwell_time = cpu_to_le32(P2P_AF_MIN_DWELL_TIME);
|
|
|
+ config_af_params->extra_listen = false;
|
|
|
+ break;
|
|
|
+ case P2P_PAF_PROVDIS_REQ:
|
|
|
+ ie_len = le16_to_cpu(action_frame->len) -
|
|
|
+ offsetof(struct brcmf_p2p_pub_act_frame, elts);
|
|
|
+ if (cfg80211_get_p2p_attr(&act_frm->elts[0], ie_len,
|
|
|
+ IEEE80211_P2P_ATTR_GROUP_ID,
|
|
|
+ NULL, 0) < 0)
|
|
|
+ config_af_params->search_channel = true;
|
|
|
+ config_af_params->mpc_onoff = 0;
|
|
|
+ p2p->next_af_subtype = act_frm->subtype + 1;
|
|
|
+ /* increase dwell time to wait for RESP frame */
|
|
|
+ af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME);
|
|
|
+ break;
|
|
|
+ case P2P_PAF_PROVDIS_RSP:
|
|
|
+ /* wpa_supplicant send go nego req right after prov disc */
|
|
|
+ p2p->next_af_subtype = P2P_PAF_GON_REQ;
|
|
|
+ /* increase dwell time to MED level */
|
|
|
+ af_params->dwell_time = cpu_to_le32(P2P_AF_MED_DWELL_TIME);
|
|
|
+ config_af_params->extra_listen = false;
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ brcmf_err("Unknown p2p pub act frame subtype: %d\n",
|
|
|
+ act_frm->subtype);
|
|
|
+ err = -EINVAL;
|
|
|
+ }
|
|
|
+ return err;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_send_action_frame() - send action frame .
|
|
|
+ *
|
|
|
+ * @cfg: driver private data for cfg80211 interface.
|
|
|
+ * @ndev: net device to transmit on.
|
|
|
+ * @af_params: configuration data for action frame.
|
|
|
+ */
|
|
|
+bool brcmf_p2p_send_action_frame(struct brcmf_cfg80211_info *cfg,
|
|
|
+ struct net_device *ndev,
|
|
|
+ struct brcmf_fil_af_params_le *af_params)
|
|
|
+{
|
|
|
+ struct brcmf_p2p_info *p2p = &cfg->p2p;
|
|
|
+ struct brcmf_fil_action_frame_le *action_frame;
|
|
|
+ struct brcmf_config_af_params config_af_params;
|
|
|
+ struct afx_hdl *afx_hdl = &p2p->afx_hdl;
|
|
|
+ u16 action_frame_len;
|
|
|
+ bool ack = false;
|
|
|
+ u8 category;
|
|
|
+ u8 action;
|
|
|
+ s32 tx_retry;
|
|
|
+ s32 extra_listen_time;
|
|
|
+ uint delta_ms;
|
|
|
+
|
|
|
+ action_frame = &af_params->action_frame;
|
|
|
+ action_frame_len = le16_to_cpu(action_frame->len);
|
|
|
+
|
|
|
+ brcmf_p2p_print_actframe(true, action_frame->data, action_frame_len);
|
|
|
+
|
|
|
+ /* Add the default dwell time. Dwell time to stay off-channel */
|
|
|
+ /* to wait for a response action frame after transmitting an */
|
|
|
+ /* GO Negotiation action frame */
|
|
|
+ af_params->dwell_time = cpu_to_le32(P2P_AF_DWELL_TIME);
|
|
|
+
|
|
|
+ category = action_frame->data[DOT11_ACTION_CAT_OFF];
|
|
|
+ action = action_frame->data[DOT11_ACTION_ACT_OFF];
|
|
|
+
|
|
|
+ /* initialize variables */
|
|
|
+ p2p->next_af_subtype = P2P_PAF_SUBTYPE_INVALID;
|
|
|
+ p2p->gon_req_action = false;
|
|
|
+
|
|
|
+ /* config parameters */
|
|
|
+ config_af_params.mpc_onoff = -1;
|
|
|
+ config_af_params.search_channel = false;
|
|
|
+ config_af_params.extra_listen = false;
|
|
|
+
|
|
|
+ if (brcmf_p2p_is_pub_action(action_frame->data, action_frame_len)) {
|
|
|
+ /* p2p public action frame process */
|
|
|
+ if (brcmf_p2p_pub_af_tx(cfg, af_params, &config_af_params)) {
|
|
|
+ /* Just send unknown subtype frame with */
|
|
|
+ /* default parameters. */
|
|
|
+ brcmf_err("P2P Public action frame, unknown subtype.\n");
|
|
|
+ }
|
|
|
+ } else if (brcmf_p2p_is_gas_action(action_frame->data,
|
|
|
+ action_frame_len)) {
|
|
|
+ /* service discovery process */
|
|
|
+ if (action == P2PSD_ACTION_ID_GAS_IREQ ||
|
|
|
+ action == P2PSD_ACTION_ID_GAS_CREQ) {
|
|
|
+ /* configure service discovery query frame */
|
|
|
+ config_af_params.search_channel = true;
|
|
|
+
|
|
|
+ /* save next af suptype to cancel */
|
|
|
+ /* remaining dwell time */
|
|
|
+ p2p->next_af_subtype = action + 1;
|
|
|
+
|
|
|
+ af_params->dwell_time =
|
|
|
+ cpu_to_le32(P2P_AF_MED_DWELL_TIME);
|
|
|
+ } else if (action == P2PSD_ACTION_ID_GAS_IRESP ||
|
|
|
+ action == P2PSD_ACTION_ID_GAS_CRESP) {
|
|
|
+ /* configure service discovery response frame */
|
|
|
+ af_params->dwell_time =
|
|
|
+ cpu_to_le32(P2P_AF_MIN_DWELL_TIME);
|
|
|
+ } else {
|
|
|
+ brcmf_err("Unknown action type: %d\n", action);
|
|
|
+ goto exit;
|
|
|
+ }
|
|
|
+ } else if (brcmf_p2p_is_p2p_action(action_frame->data,
|
|
|
+ action_frame_len)) {
|
|
|
+ /* do not configure anything. it will be */
|
|
|
+ /* sent with a default configuration */
|
|
|
+ } else {
|
|
|
+ brcmf_err("Unknown Frame: category 0x%x, action 0x%x\n",
|
|
|
+ category, action);
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* if connecting on primary iface, sleep for a while before sending
|
|
|
+ * af tx for VSDB
|
|
|
+ */
|
|
|
+ if (test_bit(BRCMF_VIF_STATUS_CONNECTING,
|
|
|
+ &p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->sme_state))
|
|
|
+ msleep(50);
|
|
|
+
|
|
|
+ /* if scan is ongoing, abort current scan. */
|
|
|
+ if (test_bit(BRCMF_SCAN_STATUS_BUSY, &cfg->scan_status))
|
|
|
+ brcmf_abort_scanning(cfg);
|
|
|
+
|
|
|
+ memcpy(afx_hdl->tx_dst_addr, action_frame->da, ETH_ALEN);
|
|
|
+
|
|
|
+ /* To make sure to send successfully action frame, turn off mpc */
|
|
|
+ if (config_af_params.mpc_onoff == 0)
|
|
|
+ brcmf_set_mpc(ndev, 0);
|
|
|
+
|
|
|
+ /* set status and destination address before sending af */
|
|
|
+ if (p2p->next_af_subtype != P2P_PAF_SUBTYPE_INVALID) {
|
|
|
+ /* set status to cancel the remained dwell time in rx process */
|
|
|
+ set_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, &p2p->status);
|
|
|
+ }
|
|
|
+
|
|
|
+ p2p->af_sent_channel = 0;
|
|
|
+ set_bit(BRCMF_P2P_STATUS_SENDING_ACT_FRAME, &p2p->status);
|
|
|
+ /* validate channel and p2p ies */
|
|
|
+ if (config_af_params.search_channel &&
|
|
|
+ IS_P2P_SOCIAL_CHANNEL(le32_to_cpu(af_params->channel)) &&
|
|
|
+ p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif->saved_ie.probe_req_ie_len) {
|
|
|
+ afx_hdl = &p2p->afx_hdl;
|
|
|
+ afx_hdl->peer_listen_chan = le32_to_cpu(af_params->channel);
|
|
|
+
|
|
|
+ if (brcmf_p2p_af_searching_channel(p2p) ==
|
|
|
+ P2P_INVALID_CHANNEL) {
|
|
|
+ brcmf_err("Couldn't find peer's channel.\n");
|
|
|
+ goto exit;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Abort scan even for VSDB scenarios. Scan gets aborted in
|
|
|
+ * firmware but after the check of piggyback algorithm. To take
|
|
|
+ * care of current piggback algo, lets abort the scan here
|
|
|
+ * itself.
|
|
|
+ */
|
|
|
+ brcmf_notify_escan_complete(cfg, ndev, true, true);
|
|
|
+
|
|
|
+ /* update channel */
|
|
|
+ af_params->channel = cpu_to_le32(afx_hdl->peer_chan);
|
|
|
+ }
|
|
|
+
|
|
|
+ tx_retry = 0;
|
|
|
+ while (!p2p->block_gon_req_tx &&
|
|
|
+ (ack == false) && (tx_retry < P2P_AF_TX_MAX_RETRY)) {
|
|
|
+ ack = !brcmf_p2p_tx_action_frame(p2p, af_params);
|
|
|
+ tx_retry++;
|
|
|
+ }
|
|
|
+ if (ack == false) {
|
|
|
+ brcmf_err("Failed to send Action Frame(retry %d)\n", tx_retry);
|
|
|
+ clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status);
|
|
|
+ }
|
|
|
+
|
|
|
+exit:
|
|
|
+ clear_bit(BRCMF_P2P_STATUS_SENDING_ACT_FRAME, &p2p->status);
|
|
|
+
|
|
|
+ /* WAR: sometimes dongle does not keep the dwell time of 'actframe'.
|
|
|
+ * if we coundn't get the next action response frame and dongle does
|
|
|
+ * not keep the dwell time, go to listen state again to get next action
|
|
|
+ * response frame.
|
|
|
+ */
|
|
|
+ if (ack && config_af_params.extra_listen && !p2p->block_gon_req_tx &&
|
|
|
+ test_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, &p2p->status) &&
|
|
|
+ p2p->af_sent_channel == afx_hdl->my_listen_chan) {
|
|
|
+ delta_ms = jiffies_to_msecs(jiffies - p2p->af_tx_sent_jiffies);
|
|
|
+ if (le32_to_cpu(af_params->dwell_time) > delta_ms)
|
|
|
+ extra_listen_time = le32_to_cpu(af_params->dwell_time) -
|
|
|
+ delta_ms;
|
|
|
+ else
|
|
|
+ extra_listen_time = 0;
|
|
|
+ if (extra_listen_time > 50) {
|
|
|
+ set_bit(BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN,
|
|
|
+ &p2p->status);
|
|
|
+ brcmf_dbg(INFO, "Wait more time! actual af time:%d, calculated extra listen:%d\n",
|
|
|
+ le32_to_cpu(af_params->dwell_time),
|
|
|
+ extra_listen_time);
|
|
|
+ extra_listen_time += 100;
|
|
|
+ if (!brcmf_p2p_discover_listen(p2p,
|
|
|
+ p2p->af_sent_channel,
|
|
|
+ extra_listen_time)) {
|
|
|
+ unsigned long duration;
|
|
|
+
|
|
|
+ extra_listen_time += 100;
|
|
|
+ duration = msecs_to_jiffies(extra_listen_time);
|
|
|
+ wait_for_completion_timeout(&p2p->wait_next_af,
|
|
|
+ duration);
|
|
|
+ }
|
|
|
+ clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_AF_LISTEN,
|
|
|
+ &p2p->status);
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ if (p2p->block_gon_req_tx) {
|
|
|
+ /* if ack is true, supplicant will wait more time(100ms).
|
|
|
+ * so we will return it as a success to get more time .
|
|
|
+ */
|
|
|
+ p2p->block_gon_req_tx = false;
|
|
|
+ ack = true;
|
|
|
+ }
|
|
|
+
|
|
|
+ clear_bit(BRCMF_P2P_STATUS_WAITING_NEXT_ACT_FRAME, &p2p->status);
|
|
|
+ /* if all done, turn mpc on again */
|
|
|
+ if (config_af_params.mpc_onoff == 1)
|
|
|
+ brcmf_set_mpc(ndev, 1);
|
|
|
+
|
|
|
+ return ack;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_notify_rx_mgmt_p2p_probereq() - Event handler for p2p probe req.
|
|
|
+ *
|
|
|
+ * @ifp: interface pointer for which event was received.
|
|
|
+ * @e: even message.
|
|
|
+ * @data: payload of event message (probe request).
|
|
|
+ */
|
|
|
+s32 brcmf_p2p_notify_rx_mgmt_p2p_probereq(struct brcmf_if *ifp,
|
|
|
+ const struct brcmf_event_msg *e,
|
|
|
+ void *data)
|
|
|
+{
|
|
|
+ struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
|
|
|
+ struct brcmf_p2p_info *p2p = &cfg->p2p;
|
|
|
+ struct afx_hdl *afx_hdl = &p2p->afx_hdl;
|
|
|
+ struct wireless_dev *wdev;
|
|
|
+ struct brcmf_cfg80211_vif *vif = ifp->vif;
|
|
|
+ struct brcmf_rx_mgmt_data *rxframe = (struct brcmf_rx_mgmt_data *)data;
|
|
|
+ u16 chanspec = be16_to_cpu(rxframe->chanspec);
|
|
|
+ u8 *mgmt_frame;
|
|
|
+ u32 mgmt_frame_len;
|
|
|
+ s32 freq;
|
|
|
+ u16 mgmt_type;
|
|
|
+
|
|
|
+ brcmf_dbg(INFO, "Enter: event %d reason %d\n", e->event_code,
|
|
|
+ e->reason);
|
|
|
+
|
|
|
+ if (test_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, &p2p->status) &&
|
|
|
+ (memcmp(afx_hdl->tx_dst_addr, e->addr, ETH_ALEN) == 0)) {
|
|
|
+ afx_hdl->peer_chan = CHSPEC_CHANNEL(chanspec);
|
|
|
+ brcmf_dbg(INFO, "PROBE REQUEST: Peer found, channel=%d\n",
|
|
|
+ afx_hdl->peer_chan);
|
|
|
+ complete(&afx_hdl->act_frm_scan);
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Firmware sends us two proberesponses for each idx one. At the */
|
|
|
+ /* moment anything but bsscfgidx 0 is passed up to supplicant */
|
|
|
+ if (e->bsscfgidx == 0)
|
|
|
+ return 0;
|
|
|
+
|
|
|
+ /* Filter any P2P probe reqs arriving during the GO-NEG Phase */
|
|
|
+ if (test_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status)) {
|
|
|
+ brcmf_dbg(INFO, "Filtering P2P probe_req in GO-NEG phase\n");
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Check if wpa_supplicant has registered for this frame */
|
|
|
+ brcmf_dbg(INFO, "vif->mgmt_rx_reg %04x\n", vif->mgmt_rx_reg);
|
|
|
+ mgmt_type = (IEEE80211_STYPE_PROBE_REQ & IEEE80211_FCTL_STYPE) >> 4;
|
|
|
+ if ((vif->mgmt_rx_reg & BIT(mgmt_type)) == 0)
|
|
|
+ return 0;
|
|
|
+
|
|
|
+ mgmt_frame = (u8 *)(rxframe + 1);
|
|
|
+ mgmt_frame_len = e->datalen - sizeof(*rxframe);
|
|
|
+ freq = ieee80211_channel_to_frequency(CHSPEC_CHANNEL(chanspec),
|
|
|
+ CHSPEC_IS2G(chanspec) ?
|
|
|
+ IEEE80211_BAND_2GHZ :
|
|
|
+ IEEE80211_BAND_5GHZ);
|
|
|
+ wdev = ifp->ndev->ieee80211_ptr;
|
|
|
+ cfg80211_rx_mgmt(wdev, freq, 0, mgmt_frame, mgmt_frame_len, GFP_ATOMIC);
|
|
|
+
|
|
|
+ brcmf_dbg(INFO, "mgmt_frame_len (%d) , e->datalen (%d), chanspec (%04x), freq (%d)\n",
|
|
|
+ mgmt_frame_len, e->datalen, chanspec, freq);
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_attach() - attach for P2P.
|
|
|
+ *
|
|
|
+ * @cfg: driver private data for cfg80211 interface.
|
|
|
+ */
|
|
|
+s32 brcmf_p2p_attach(struct brcmf_cfg80211_info *cfg)
|
|
|
+{
|
|
|
+ struct brcmf_if *pri_ifp;
|
|
|
+ struct brcmf_if *p2p_ifp;
|
|
|
+ struct brcmf_cfg80211_vif *p2p_vif;
|
|
|
+ struct brcmf_p2p_info *p2p;
|
|
|
+ struct brcmf_pub *drvr;
|
|
|
+ s32 bssidx;
|
|
|
+ s32 err = 0;
|
|
|
+
|
|
|
+ p2p = &cfg->p2p;
|
|
|
+ p2p->cfg = cfg;
|
|
|
+
|
|
|
+ drvr = cfg->pub;
|
|
|
+
|
|
|
+ pri_ifp = drvr->iflist[0];
|
|
|
+ p2p_ifp = drvr->iflist[1];
|
|
|
+
|
|
|
+ p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif = pri_ifp->vif;
|
|
|
+
|
|
|
+ if (p2p_ifp) {
|
|
|
+ p2p_vif = brcmf_alloc_vif(cfg, NL80211_IFTYPE_P2P_DEVICE,
|
|
|
+ false);
|
|
|
+ if (IS_ERR(p2p_vif)) {
|
|
|
+ brcmf_err("could not create discovery vif\n");
|
|
|
+ err = -ENOMEM;
|
|
|
+ goto exit;
|
|
|
+ }
|
|
|
+
|
|
|
+ p2p_vif->ifp = p2p_ifp;
|
|
|
+ p2p_ifp->vif = p2p_vif;
|
|
|
+ p2p_vif->wdev.netdev = p2p_ifp->ndev;
|
|
|
+ p2p_ifp->ndev->ieee80211_ptr = &p2p_vif->wdev;
|
|
|
+ SET_NETDEV_DEV(p2p_ifp->ndev, wiphy_dev(cfg->wiphy));
|
|
|
+
|
|
|
+ p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif = p2p_vif;
|
|
|
+
|
|
|
+ brcmf_p2p_generate_bss_mac(p2p);
|
|
|
+ brcmf_p2p_set_firmware(pri_ifp, p2p->dev_addr);
|
|
|
+
|
|
|
+ /* Initialize P2P Discovery in the firmware */
|
|
|
+ err = brcmf_fil_iovar_int_set(pri_ifp, "p2p_disc", 1);
|
|
|
+ if (err < 0) {
|
|
|
+ brcmf_err("set p2p_disc error\n");
|
|
|
+ brcmf_free_vif(p2p_vif);
|
|
|
+ goto exit;
|
|
|
+ }
|
|
|
+ /* obtain bsscfg index for P2P discovery */
|
|
|
+ err = brcmf_fil_iovar_int_get(pri_ifp, "p2p_dev", &bssidx);
|
|
|
+ if (err < 0) {
|
|
|
+ brcmf_err("retrieving discover bsscfg index failed\n");
|
|
|
+ brcmf_free_vif(p2p_vif);
|
|
|
+ goto exit;
|
|
|
+ }
|
|
|
+ /* Verify that firmware uses same bssidx as driver !! */
|
|
|
+ if (p2p_ifp->bssidx != bssidx) {
|
|
|
+ brcmf_err("Incorrect bssidx=%d, compared to p2p_ifp->bssidx=%d\n",
|
|
|
+ bssidx, p2p_ifp->bssidx);
|
|
|
+ brcmf_free_vif(p2p_vif);
|
|
|
+ goto exit;
|
|
|
+ }
|
|
|
+
|
|
|
+ init_completion(&p2p->send_af_done);
|
|
|
+ INIT_WORK(&p2p->afx_hdl.afx_work, brcmf_p2p_afx_handler);
|
|
|
+ init_completion(&p2p->afx_hdl.act_frm_scan);
|
|
|
+ init_completion(&p2p->wait_next_af);
|
|
|
+ }
|
|
|
+exit:
|
|
|
+ return err;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_detach() - detach P2P.
|
|
|
+ *
|
|
|
+ * @p2p: P2P specific data.
|
|
|
+ */
|
|
|
+void brcmf_p2p_detach(struct brcmf_p2p_info *p2p)
|
|
|
+{
|
|
|
+ struct brcmf_cfg80211_vif *vif;
|
|
|
+
|
|
|
+ vif = p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif;
|
|
|
+ if (vif != NULL) {
|
|
|
+ brcmf_p2p_cancel_remain_on_channel(vif->ifp);
|
|
|
+ brcmf_p2p_deinit_discovery(p2p);
|
|
|
+ /* remove discovery interface */
|
|
|
+ brcmf_free_vif(vif);
|
|
|
+ p2p->bss_idx[P2PAPI_BSSCFG_DEVICE].vif = NULL;
|
|
|
+ }
|
|
|
+ /* just set it all to zero */
|
|
|
+ memset(p2p, 0, sizeof(*p2p));
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_get_current_chanspec() - Get current operation channel.
|
|
|
+ *
|
|
|
+ * @p2p: P2P specific data.
|
|
|
+ * @chanspec: chanspec to be returned.
|
|
|
+ */
|
|
|
+static void brcmf_p2p_get_current_chanspec(struct brcmf_p2p_info *p2p,
|
|
|
+ u16 *chanspec)
|
|
|
+{
|
|
|
+ struct brcmf_if *ifp;
|
|
|
+ struct brcmf_fil_chan_info_le ci;
|
|
|
+ s32 err;
|
|
|
+
|
|
|
+ ifp = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif->ifp;
|
|
|
+
|
|
|
+ *chanspec = 11 & WL_CHANSPEC_CHAN_MASK;
|
|
|
+
|
|
|
+ err = brcmf_fil_cmd_data_get(ifp, BRCMF_C_GET_CHANNEL, &ci, sizeof(ci));
|
|
|
+ if (!err) {
|
|
|
+ *chanspec = le32_to_cpu(ci.hw_channel) & WL_CHANSPEC_CHAN_MASK;
|
|
|
+ if (*chanspec < CH_MAX_2G_CHANNEL)
|
|
|
+ *chanspec |= WL_CHANSPEC_BAND_2G;
|
|
|
+ else
|
|
|
+ *chanspec |= WL_CHANSPEC_BAND_5G;
|
|
|
+ }
|
|
|
+ *chanspec |= WL_CHANSPEC_BW_20 | WL_CHANSPEC_CTL_SB_NONE;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Change a P2P Role.
|
|
|
+ * Parameters:
|
|
|
+ * @mac: MAC address of the BSS to change a role
|
|
|
+ * Returns 0 if success.
|
|
|
+ */
|
|
|
+int brcmf_p2p_ifchange(struct brcmf_cfg80211_info *cfg,
|
|
|
+ enum brcmf_fil_p2p_if_types if_type)
|
|
|
+{
|
|
|
+ struct brcmf_p2p_info *p2p = &cfg->p2p;
|
|
|
+ struct brcmf_cfg80211_vif *vif;
|
|
|
+ struct brcmf_fil_p2p_if_le if_request;
|
|
|
+ s32 err;
|
|
|
+ u16 chanspec;
|
|
|
+
|
|
|
+ brcmf_dbg(TRACE, "Enter\n");
|
|
|
+
|
|
|
+ vif = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif;
|
|
|
+ if (!vif) {
|
|
|
+ brcmf_err("vif for P2PAPI_BSSCFG_PRIMARY does not exist\n");
|
|
|
+ return -EPERM;
|
|
|
+ }
|
|
|
+ brcmf_notify_escan_complete(cfg, vif->ifp->ndev, true, true);
|
|
|
+ vif = p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION].vif;
|
|
|
+ if (!vif) {
|
|
|
+ brcmf_err("vif for P2PAPI_BSSCFG_CONNECTION does not exist\n");
|
|
|
+ return -EPERM;
|
|
|
+ }
|
|
|
+ brcmf_set_mpc(vif->ifp->ndev, 0);
|
|
|
+
|
|
|
+ /* In concurrency case, STA may be already associated in a particular */
|
|
|
+ /* channel. so retrieve the current channel of primary interface and */
|
|
|
+ /* then start the virtual interface on that. */
|
|
|
+ brcmf_p2p_get_current_chanspec(p2p, &chanspec);
|
|
|
+
|
|
|
+ if_request.type = cpu_to_le16((u16)if_type);
|
|
|
+ if_request.chspec = cpu_to_le16(chanspec);
|
|
|
+ memcpy(if_request.addr, p2p->int_addr, sizeof(if_request.addr));
|
|
|
+
|
|
|
+ brcmf_cfg80211_arm_vif_event(cfg, vif);
|
|
|
+ err = brcmf_fil_iovar_data_set(vif->ifp, "p2p_ifupd", &if_request,
|
|
|
+ sizeof(if_request));
|
|
|
+ if (err) {
|
|
|
+ brcmf_err("p2p_ifupd FAILED, err=%d\n", err);
|
|
|
+ brcmf_cfg80211_arm_vif_event(cfg, NULL);
|
|
|
+ return err;
|
|
|
+ }
|
|
|
+ err = brcmf_cfg80211_wait_vif_event_timeout(cfg, BRCMF_E_IF_CHANGE,
|
|
|
+ msecs_to_jiffies(1500));
|
|
|
+ brcmf_cfg80211_arm_vif_event(cfg, NULL);
|
|
|
+ if (!err) {
|
|
|
+ brcmf_err("No BRCMF_E_IF_CHANGE event received\n");
|
|
|
+ return -EIO;
|
|
|
+ }
|
|
|
+
|
|
|
+ err = brcmf_fil_cmd_int_set(vif->ifp, BRCMF_C_SET_SCB_TIMEOUT,
|
|
|
+ BRCMF_SCB_TIMEOUT_VALUE);
|
|
|
+
|
|
|
+ return err;
|
|
|
+}
|
|
|
+
|
|
|
+static int brcmf_p2p_request_p2p_if(struct brcmf_p2p_info *p2p,
|
|
|
+ struct brcmf_if *ifp, u8 ea[ETH_ALEN],
|
|
|
+ enum brcmf_fil_p2p_if_types iftype)
|
|
|
+{
|
|
|
+ struct brcmf_fil_p2p_if_le if_request;
|
|
|
+ int err;
|
|
|
+ u16 chanspec;
|
|
|
+
|
|
|
+ /* we need a default channel */
|
|
|
+ brcmf_p2p_get_current_chanspec(p2p, &chanspec);
|
|
|
+
|
|
|
+ /* fill the firmware request */
|
|
|
+ memcpy(if_request.addr, ea, ETH_ALEN);
|
|
|
+ if_request.type = cpu_to_le16((u16)iftype);
|
|
|
+ if_request.chspec = cpu_to_le16(chanspec);
|
|
|
+
|
|
|
+ err = brcmf_fil_iovar_data_set(ifp, "p2p_ifadd", &if_request,
|
|
|
+ sizeof(if_request));
|
|
|
+ if (err)
|
|
|
+ return err;
|
|
|
+
|
|
|
+ return err;
|
|
|
+}
|
|
|
+
|
|
|
+static int brcmf_p2p_disable_p2p_if(struct brcmf_cfg80211_vif *vif)
|
|
|
+{
|
|
|
+ struct brcmf_cfg80211_info *cfg = wdev_to_cfg(&vif->wdev);
|
|
|
+ struct net_device *pri_ndev = cfg_to_ndev(cfg);
|
|
|
+ struct brcmf_if *ifp = netdev_priv(pri_ndev);
|
|
|
+ u8 *addr = vif->wdev.netdev->dev_addr;
|
|
|
+
|
|
|
+ return brcmf_fil_iovar_data_set(ifp, "p2p_ifdis", addr, ETH_ALEN);
|
|
|
+}
|
|
|
+
|
|
|
+static int brcmf_p2p_release_p2p_if(struct brcmf_cfg80211_vif *vif)
|
|
|
+{
|
|
|
+ struct brcmf_cfg80211_info *cfg = wdev_to_cfg(&vif->wdev);
|
|
|
+ struct net_device *pri_ndev = cfg_to_ndev(cfg);
|
|
|
+ struct brcmf_if *ifp = netdev_priv(pri_ndev);
|
|
|
+ u8 *addr = vif->wdev.netdev->dev_addr;
|
|
|
+
|
|
|
+ return brcmf_fil_iovar_data_set(ifp, "p2p_ifdel", addr, ETH_ALEN);
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_add_vif() - create a new P2P virtual interface.
|
|
|
+ *
|
|
|
+ * @wiphy: wiphy device of new interface.
|
|
|
+ * @name: name of the new interface.
|
|
|
+ * @type: nl80211 interface type.
|
|
|
+ * @flags: TBD
|
|
|
+ * @params: TBD
|
|
|
+ */
|
|
|
+struct wireless_dev *brcmf_p2p_add_vif(struct wiphy *wiphy, const char *name,
|
|
|
+ enum nl80211_iftype type, u32 *flags,
|
|
|
+ struct vif_params *params)
|
|
|
+{
|
|
|
+ struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy);
|
|
|
+ struct brcmf_if *ifp = netdev_priv(cfg_to_ndev(cfg));
|
|
|
+ struct brcmf_cfg80211_vif *vif;
|
|
|
+ enum brcmf_fil_p2p_if_types iftype;
|
|
|
+ enum wl_mode mode;
|
|
|
+ int err;
|
|
|
+
|
|
|
+ if (brcmf_cfg80211_vif_event_armed(cfg))
|
|
|
+ return ERR_PTR(-EBUSY);
|
|
|
+
|
|
|
+ brcmf_dbg(INFO, "adding vif \"%s\" (type=%d)\n", name, type);
|
|
|
+
|
|
|
+ switch (type) {
|
|
|
+ case NL80211_IFTYPE_P2P_CLIENT:
|
|
|
+ iftype = BRCMF_FIL_P2P_IF_CLIENT;
|
|
|
+ mode = WL_MODE_BSS;
|
|
|
+ break;
|
|
|
+ case NL80211_IFTYPE_P2P_GO:
|
|
|
+ iftype = BRCMF_FIL_P2P_IF_GO;
|
|
|
+ mode = WL_MODE_AP;
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ return ERR_PTR(-EOPNOTSUPP);
|
|
|
+ }
|
|
|
+
|
|
|
+ vif = brcmf_alloc_vif(cfg, type, false);
|
|
|
+ if (IS_ERR(vif))
|
|
|
+ return (struct wireless_dev *)vif;
|
|
|
+ brcmf_cfg80211_arm_vif_event(cfg, vif);
|
|
|
+
|
|
|
+ err = brcmf_p2p_request_p2p_if(&cfg->p2p, ifp, cfg->p2p.int_addr,
|
|
|
+ iftype);
|
|
|
+ if (err) {
|
|
|
+ brcmf_cfg80211_arm_vif_event(cfg, NULL);
|
|
|
+ goto fail;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* wait for firmware event */
|
|
|
+ err = brcmf_cfg80211_wait_vif_event_timeout(cfg, BRCMF_E_IF_ADD,
|
|
|
+ msecs_to_jiffies(1500));
|
|
|
+ brcmf_cfg80211_arm_vif_event(cfg, NULL);
|
|
|
+ if (!err) {
|
|
|
+ brcmf_err("timeout occurred\n");
|
|
|
+ err = -EIO;
|
|
|
+ goto fail;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* interface created in firmware */
|
|
|
+ ifp = vif->ifp;
|
|
|
+ if (!ifp) {
|
|
|
+ brcmf_err("no if pointer provided\n");
|
|
|
+ err = -ENOENT;
|
|
|
+ goto fail;
|
|
|
+ }
|
|
|
+
|
|
|
+ strncpy(ifp->ndev->name, name, sizeof(ifp->ndev->name) - 1);
|
|
|
+ err = brcmf_net_attach(ifp, true);
|
|
|
+ if (err) {
|
|
|
+ brcmf_err("Registering netdevice failed\n");
|
|
|
+ goto fail;
|
|
|
+ }
|
|
|
+ cfg->p2p.bss_idx[P2PAPI_BSSCFG_CONNECTION].vif = vif;
|
|
|
+ /* Disable firmware roaming for P2P interface */
|
|
|
+ brcmf_fil_iovar_int_set(ifp, "roam_off", 1);
|
|
|
+ if (iftype == BRCMF_FIL_P2P_IF_GO) {
|
|
|
+ /* set station timeout for p2p */
|
|
|
+ brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCB_TIMEOUT,
|
|
|
+ BRCMF_SCB_TIMEOUT_VALUE);
|
|
|
+ }
|
|
|
+ return &ifp->vif->wdev;
|
|
|
+
|
|
|
+fail:
|
|
|
+ brcmf_free_vif(vif);
|
|
|
+ return ERR_PTR(err);
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * brcmf_p2p_del_vif() - delete a P2P virtual interface.
|
|
|
+ *
|
|
|
+ * @wiphy: wiphy device of interface.
|
|
|
+ * @wdev: wireless device of interface.
|
|
|
+ *
|
|
|
+ * TODO: not yet supported.
|
|
|
+ */
|
|
|
+int brcmf_p2p_del_vif(struct wiphy *wiphy, struct wireless_dev *wdev)
|
|
|
+{
|
|
|
+ struct brcmf_cfg80211_info *cfg = wiphy_priv(wiphy);
|
|
|
+ struct brcmf_p2p_info *p2p = &cfg->p2p;
|
|
|
+ struct brcmf_cfg80211_vif *vif;
|
|
|
+ unsigned long jiffie_timeout = msecs_to_jiffies(1500);
|
|
|
+ bool wait_for_disable = false;
|
|
|
+ int err;
|
|
|
+
|
|
|
+ brcmf_dbg(TRACE, "delete P2P vif\n");
|
|
|
+ vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
|
|
|
+
|
|
|
+ switch (vif->wdev.iftype) {
|
|
|
+ case NL80211_IFTYPE_P2P_CLIENT:
|
|
|
+ if (test_bit(BRCMF_VIF_STATUS_DISCONNECTING, &vif->sme_state))
|
|
|
+ wait_for_disable = true;
|
|
|
+ break;
|
|
|
+
|
|
|
+ case NL80211_IFTYPE_P2P_GO:
|
|
|
+ if (!brcmf_p2p_disable_p2p_if(vif))
|
|
|
+ wait_for_disable = true;
|
|
|
+ break;
|
|
|
+
|
|
|
+ case NL80211_IFTYPE_P2P_DEVICE:
|
|
|
+ default:
|
|
|
+ return -ENOTSUPP;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+
|
|
|
+ clear_bit(BRCMF_P2P_STATUS_GO_NEG_PHASE, &p2p->status);
|
|
|
+ brcmf_dbg(INFO, "P2P: GO_NEG_PHASE status cleared\n");
|
|
|
+
|
|
|
+ if (wait_for_disable)
|
|
|
+ wait_for_completion_timeout(&cfg->vif_disabled,
|
|
|
+ msecs_to_jiffies(500));
|
|
|
+
|
|
|
+ brcmf_vif_clear_mgmt_ies(vif);
|
|
|
+
|
|
|
+ brcmf_cfg80211_arm_vif_event(cfg, vif);
|
|
|
+ err = brcmf_p2p_release_p2p_if(vif);
|
|
|
+ if (!err) {
|
|
|
+ /* wait for firmware event */
|
|
|
+ err = brcmf_cfg80211_wait_vif_event_timeout(cfg, BRCMF_E_IF_DEL,
|
|
|
+ jiffie_timeout);
|
|
|
+ if (!err)
|
|
|
+ err = -EIO;
|
|
|
+ else
|
|
|
+ err = 0;
|
|
|
+ }
|
|
|
+ brcmf_cfg80211_arm_vif_event(cfg, NULL);
|
|
|
+ brcmf_free_vif(vif);
|
|
|
+ p2p->bss_idx[P2PAPI_BSSCFG_CONNECTION].vif = NULL;
|
|
|
+
|
|
|
+ return err;
|
|
|
+}
|
Johannes Berg