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+/******************************************************************************
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+ *
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+ * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
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+ *
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+ * Portions of this file are derived from the ipw3945 project, as well
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+ * as portions of the ieee80211 subsystem header files.
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+ *
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+ * This program is free software; you can redistribute it and/or modify it
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+ * under the terms of version 2 of the GNU General Public License as
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+ * published by the Free Software Foundation.
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+ *
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+ * This program is distributed in the hope that it will be useful, but WITHOUT
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+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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+ * more details.
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+ *
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+ * You should have received a copy of the GNU General Public License along with
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+ * this program; if not, write to the Free Software Foundation, Inc.,
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+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
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+ *
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+ * The full GNU General Public License is included in this distribution in the
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+ * file called LICENSE.
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+ *
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+ * Contact Information:
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+ * Intel Linux Wireless <ilw@linux.intel.com>
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+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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+ *
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+ *****************************************************************************/
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+#include <linux/kernel.h>
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+#include <linux/module.h>
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+#include <linux/init.h>
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+#include <linux/slab.h>
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+#include <linux/dma-mapping.h>
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+#include <linux/delay.h>
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+#include <linux/sched.h>
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+#include <linux/skbuff.h>
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+#include <linux/netdevice.h>
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+#include <linux/firmware.h>
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+#include <linux/etherdevice.h>
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+#include <linux/if_arp.h>
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+
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+#include <net/mac80211.h>
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+
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+#include <asm/div64.h>
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+
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+#include "iwl-eeprom.h"
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+#include "iwl-dev.h"
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+#include "iwl-core.h"
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+#include "iwl-io.h"
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+#include "iwl-agn-calib.h"
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+#include "iwl-agn.h"
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+#include "iwl-shared.h"
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+#include "iwl-bus.h"
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+#include "iwl-trans.h"
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+
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+/*****************************************************************************
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+ *
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+ * mac80211 entry point functions
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+ *
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+ *****************************************************************************/
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+
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+static const struct ieee80211_iface_limit iwlagn_sta_ap_limits[] = {
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+ {
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+ .max = 1,
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+ .types = BIT(NL80211_IFTYPE_STATION),
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+ },
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+ {
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+ .max = 1,
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+ .types = BIT(NL80211_IFTYPE_AP),
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+ },
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+};
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+
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+static const struct ieee80211_iface_limit iwlagn_2sta_limits[] = {
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+ {
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+ .max = 2,
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+ .types = BIT(NL80211_IFTYPE_STATION),
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+ },
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+};
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+
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+static const struct ieee80211_iface_limit iwlagn_p2p_sta_go_limits[] = {
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+ {
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+ .max = 1,
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+ .types = BIT(NL80211_IFTYPE_STATION),
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+ },
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+ {
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+ .max = 1,
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+ .types = BIT(NL80211_IFTYPE_P2P_GO) |
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+ BIT(NL80211_IFTYPE_AP),
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+ },
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+};
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+
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+static const struct ieee80211_iface_limit iwlagn_p2p_2sta_limits[] = {
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+ {
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+ .max = 2,
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+ .types = BIT(NL80211_IFTYPE_STATION),
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+ },
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+ {
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+ .max = 1,
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+ .types = BIT(NL80211_IFTYPE_P2P_CLIENT),
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+ },
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+};
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+
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+static const struct ieee80211_iface_combination
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+iwlagn_iface_combinations_dualmode[] = {
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+ { .num_different_channels = 1,
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+ .max_interfaces = 2,
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+ .beacon_int_infra_match = true,
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+ .limits = iwlagn_sta_ap_limits,
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+ .n_limits = ARRAY_SIZE(iwlagn_sta_ap_limits),
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+ },
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+ { .num_different_channels = 1,
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+ .max_interfaces = 2,
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+ .limits = iwlagn_2sta_limits,
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+ .n_limits = ARRAY_SIZE(iwlagn_2sta_limits),
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+ },
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+};
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+
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+static const struct ieee80211_iface_combination
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+iwlagn_iface_combinations_p2p[] = {
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+ { .num_different_channels = 1,
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+ .max_interfaces = 2,
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+ .beacon_int_infra_match = true,
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+ .limits = iwlagn_p2p_sta_go_limits,
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+ .n_limits = ARRAY_SIZE(iwlagn_p2p_sta_go_limits),
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+ },
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+ { .num_different_channels = 1,
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+ .max_interfaces = 2,
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+ .limits = iwlagn_p2p_2sta_limits,
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+ .n_limits = ARRAY_SIZE(iwlagn_p2p_2sta_limits),
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+ },
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+};
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+
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+/*
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+ * Not a mac80211 entry point function, but it fits in with all the
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+ * other mac80211 functions grouped here.
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+ */
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+int iwlagn_mac_setup_register(struct iwl_priv *priv,
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+ struct iwlagn_ucode_capabilities *capa)
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+{
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+ int ret;
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+ struct ieee80211_hw *hw = priv->hw;
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+ struct iwl_rxon_context *ctx;
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+
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+ hw->rate_control_algorithm = "iwl-agn-rs";
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+
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+ /* Tell mac80211 our characteristics */
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+ hw->flags = IEEE80211_HW_SIGNAL_DBM |
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+ IEEE80211_HW_AMPDU_AGGREGATION |
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+ IEEE80211_HW_NEED_DTIM_PERIOD |
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+ IEEE80211_HW_SPECTRUM_MGMT |
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+ IEEE80211_HW_REPORTS_TX_ACK_STATUS;
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+
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+ /*
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+ * Including the following line will crash some AP's. This
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+ * workaround removes the stimulus which causes the crash until
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+ * the AP software can be fixed.
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+ hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF;
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+ */
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+
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+ hw->flags |= IEEE80211_HW_SUPPORTS_PS |
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+ IEEE80211_HW_SUPPORTS_DYNAMIC_PS;
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+
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+ if (priv->cfg->sku & EEPROM_SKU_CAP_11N_ENABLE)
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+ hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
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+ IEEE80211_HW_SUPPORTS_STATIC_SMPS;
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+
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+ if (capa->flags & IWL_UCODE_TLV_FLAGS_MFP)
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+ hw->flags |= IEEE80211_HW_MFP_CAPABLE;
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+
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+ hw->sta_data_size = sizeof(struct iwl_station_priv);
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+ hw->vif_data_size = sizeof(struct iwl_vif_priv);
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+
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+ for_each_context(priv, ctx) {
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+ hw->wiphy->interface_modes |= ctx->interface_modes;
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+ hw->wiphy->interface_modes |= ctx->exclusive_interface_modes;
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+ }
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+
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+ BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
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+
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+ if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT)) {
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+ hw->wiphy->iface_combinations = iwlagn_iface_combinations_p2p;
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+ hw->wiphy->n_iface_combinations =
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+ ARRAY_SIZE(iwlagn_iface_combinations_p2p);
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+ } else if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) {
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+ hw->wiphy->iface_combinations =
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+ iwlagn_iface_combinations_dualmode;
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+ hw->wiphy->n_iface_combinations =
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+ ARRAY_SIZE(iwlagn_iface_combinations_dualmode);
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+ }
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+
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+ hw->wiphy->max_remain_on_channel_duration = 1000;
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+
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+ hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY |
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+ WIPHY_FLAG_DISABLE_BEACON_HINTS |
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+ WIPHY_FLAG_IBSS_RSN;
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+
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+ if (trans(priv)->ucode_wowlan.code.len &&
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+ device_can_wakeup(bus(priv)->dev)) {
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+ hw->wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
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+ WIPHY_WOWLAN_DISCONNECT |
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+ WIPHY_WOWLAN_EAP_IDENTITY_REQ |
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+ WIPHY_WOWLAN_RFKILL_RELEASE;
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+ if (!iwlagn_mod_params.sw_crypto)
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+ hw->wiphy->wowlan.flags |=
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+ WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
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+ WIPHY_WOWLAN_GTK_REKEY_FAILURE;
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+
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+ hw->wiphy->wowlan.n_patterns = IWLAGN_WOWLAN_MAX_PATTERNS;
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+ hw->wiphy->wowlan.pattern_min_len =
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+ IWLAGN_WOWLAN_MIN_PATTERN_LEN;
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+ hw->wiphy->wowlan.pattern_max_len =
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+ IWLAGN_WOWLAN_MAX_PATTERN_LEN;
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+ }
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+
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+ if (iwlagn_mod_params.power_save)
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+ hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
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+ else
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+ hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
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+
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+ hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
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+ /* we create the 802.11 header and a zero-length SSID element */
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+ hw->wiphy->max_scan_ie_len = capa->max_probe_length - 24 - 2;
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+
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+ /* Default value; 4 EDCA QOS priorities */
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+ hw->queues = 4;
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+
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+ hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
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+
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+ if (priv->bands[IEEE80211_BAND_2GHZ].n_channels)
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+ priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
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+ &priv->bands[IEEE80211_BAND_2GHZ];
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+ if (priv->bands[IEEE80211_BAND_5GHZ].n_channels)
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+ priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
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+ &priv->bands[IEEE80211_BAND_5GHZ];
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+
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+ iwl_leds_init(priv);
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+
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+ ret = ieee80211_register_hw(priv->hw);
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+ if (ret) {
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+ IWL_ERR(priv, "Failed to register hw (error %d)\n", ret);
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+ return ret;
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+ }
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+ priv->mac80211_registered = 1;
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+
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+ return 0;
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+}
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+
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+static int __iwl_up(struct iwl_priv *priv)
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+{
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+ struct iwl_rxon_context *ctx;
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+ int ret;
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+
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+ lockdep_assert_held(&priv->shrd->mutex);
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+
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+ if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) {
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+ IWL_WARN(priv, "Exit pending; will not bring the NIC up\n");
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+ return -EIO;
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+ }
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+
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+ for_each_context(priv, ctx) {
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+ ret = iwlagn_alloc_bcast_station(priv, ctx);
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+ if (ret) {
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+ iwl_dealloc_bcast_stations(priv);
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+ return ret;
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+ }
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+ }
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+
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+ ret = iwlagn_run_init_ucode(priv);
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+ if (ret) {
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+ IWL_ERR(priv, "Failed to run INIT ucode: %d\n", ret);
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+ goto error;
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+ }
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+
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+ ret = iwlagn_load_ucode_wait_alive(priv, IWL_UCODE_REGULAR);
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+ if (ret) {
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+ IWL_ERR(priv, "Failed to start RT ucode: %d\n", ret);
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+ goto error;
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+ }
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+
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+ ret = iwl_alive_start(priv);
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+ if (ret)
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+ goto error;
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+ return 0;
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+
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+ error:
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+ set_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
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+ __iwl_down(priv);
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+ clear_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
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+
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+ IWL_ERR(priv, "Unable to initialize device.\n");
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+ return ret;
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+}
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+
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+static int iwlagn_mac_start(struct ieee80211_hw *hw)
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+{
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+ struct iwl_priv *priv = hw->priv;
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+ int ret;
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+
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+ IWL_DEBUG_MAC80211(priv, "enter\n");
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+
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+ /* we should be verifying the device is ready to be opened */
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+ mutex_lock(&priv->shrd->mutex);
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+ ret = __iwl_up(priv);
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+ mutex_unlock(&priv->shrd->mutex);
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+ if (ret)
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+ return ret;
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+
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+ IWL_DEBUG_INFO(priv, "Start UP work done.\n");
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+
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+ /* Now we should be done, and the READY bit should be set. */
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+ if (WARN_ON(!test_bit(STATUS_READY, &priv->shrd->status)))
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+ ret = -EIO;
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+
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+ iwlagn_led_enable(priv);
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+
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+ priv->is_open = 1;
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+ IWL_DEBUG_MAC80211(priv, "leave\n");
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+ return 0;
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+}
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+
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+static void iwlagn_mac_stop(struct ieee80211_hw *hw)
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+{
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+ struct iwl_priv *priv = hw->priv;
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+
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+ IWL_DEBUG_MAC80211(priv, "enter\n");
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+
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+ if (!priv->is_open)
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+ return;
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+
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+ priv->is_open = 0;
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+
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+ iwl_down(priv);
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+
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+ flush_workqueue(priv->shrd->workqueue);
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+
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+ /* User space software may expect getting rfkill changes
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+ * even if interface is down */
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+ iwl_write32(bus(priv), CSR_INT, 0xFFFFFFFF);
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+ iwl_enable_rfkill_int(priv);
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+
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+ IWL_DEBUG_MAC80211(priv, "leave\n");
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+}
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+
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+static void iwlagn_mac_set_rekey_data(struct ieee80211_hw *hw,
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+ struct ieee80211_vif *vif,
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+ struct cfg80211_gtk_rekey_data *data)
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+{
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+ struct iwl_priv *priv = hw->priv;
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+
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+ if (iwlagn_mod_params.sw_crypto)
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+ return;
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+
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+ IWL_DEBUG_MAC80211(priv, "enter\n");
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+ mutex_lock(&priv->shrd->mutex);
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+
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+ if (priv->contexts[IWL_RXON_CTX_BSS].vif != vif)
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+ goto out;
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+
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+ memcpy(priv->kek, data->kek, NL80211_KEK_LEN);
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+ memcpy(priv->kck, data->kck, NL80211_KCK_LEN);
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+ priv->replay_ctr =
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+ cpu_to_le64(be64_to_cpup((__be64 *)&data->replay_ctr));
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+ priv->have_rekey_data = true;
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+
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+ out:
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+ mutex_unlock(&priv->shrd->mutex);
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+ IWL_DEBUG_MAC80211(priv, "leave\n");
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+}
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+
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+#ifdef CONFIG_PM_SLEEP
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+
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+static int iwlagn_mac_suspend(struct ieee80211_hw *hw,
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+ struct cfg80211_wowlan *wowlan)
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+{
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+ struct iwl_priv *priv = hw->priv;
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+ struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
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+ int ret;
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+
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+ if (WARN_ON(!wowlan))
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+ return -EINVAL;
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+
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+ IWL_DEBUG_MAC80211(priv, "enter\n");
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+ mutex_lock(&priv->shrd->mutex);
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+
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+ /* Don't attempt WoWLAN when not associated, tear down instead. */
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+ if (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION ||
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+ !iwl_is_associated_ctx(ctx)) {
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+ ret = 1;
|
|
|
+ goto out;
|
|
|
+ }
|
|
|
+
|
|
|
+ ret = iwlagn_suspend(priv, hw, wowlan);
|
|
|
+ if (ret)
|
|
|
+ goto error;
|
|
|
+
|
|
|
+ device_set_wakeup_enable(bus(priv)->dev, true);
|
|
|
+
|
|
|
+ /* Now let the ucode operate on its own */
|
|
|
+ iwl_write32(bus(priv), CSR_UCODE_DRV_GP1_SET,
|
|
|
+ CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE);
|
|
|
+
|
|
|
+ goto out;
|
|
|
+
|
|
|
+ error:
|
|
|
+ priv->shrd->wowlan = false;
|
|
|
+ iwlagn_prepare_restart(priv);
|
|
|
+ ieee80211_restart_hw(priv->hw);
|
|
|
+ out:
|
|
|
+ mutex_unlock(&priv->shrd->mutex);
|
|
|
+ IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
|
+
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+static int iwlagn_mac_resume(struct ieee80211_hw *hw)
|
|
|
+{
|
|
|
+ struct iwl_priv *priv = hw->priv;
|
|
|
+ struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
|
|
|
+ struct ieee80211_vif *vif;
|
|
|
+ unsigned long flags;
|
|
|
+ u32 base, status = 0xffffffff;
|
|
|
+ int ret = -EIO;
|
|
|
+
|
|
|
+ IWL_DEBUG_MAC80211(priv, "enter\n");
|
|
|
+ mutex_lock(&priv->shrd->mutex);
|
|
|
+
|
|
|
+ iwl_write32(bus(priv), CSR_UCODE_DRV_GP1_CLR,
|
|
|
+ CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE);
|
|
|
+
|
|
|
+ base = priv->device_pointers.error_event_table;
|
|
|
+ if (iwlagn_hw_valid_rtc_data_addr(base)) {
|
|
|
+ spin_lock_irqsave(&bus(priv)->reg_lock, flags);
|
|
|
+ ret = iwl_grab_nic_access_silent(bus(priv));
|
|
|
+ if (ret == 0) {
|
|
|
+ iwl_write32(bus(priv), HBUS_TARG_MEM_RADDR, base);
|
|
|
+ status = iwl_read32(bus(priv), HBUS_TARG_MEM_RDAT);
|
|
|
+ iwl_release_nic_access(bus(priv));
|
|
|
+ }
|
|
|
+ spin_unlock_irqrestore(&bus(priv)->reg_lock, flags);
|
|
|
+
|
|
|
+#ifdef CONFIG_IWLWIFI_DEBUGFS
|
|
|
+ if (ret == 0) {
|
|
|
+ struct iwl_trans *trans = trans(priv);
|
|
|
+ if (!priv->wowlan_sram)
|
|
|
+ priv->wowlan_sram =
|
|
|
+ kzalloc(trans->ucode_wowlan.data.len,
|
|
|
+ GFP_KERNEL);
|
|
|
+
|
|
|
+ if (priv->wowlan_sram)
|
|
|
+ _iwl_read_targ_mem_words(
|
|
|
+ bus(priv), 0x800000, priv->wowlan_sram,
|
|
|
+ trans->ucode_wowlan.data.len / 4);
|
|
|
+ }
|
|
|
+#endif
|
|
|
+ }
|
|
|
+
|
|
|
+ /* we'll clear ctx->vif during iwlagn_prepare_restart() */
|
|
|
+ vif = ctx->vif;
|
|
|
+
|
|
|
+ priv->shrd->wowlan = false;
|
|
|
+
|
|
|
+ device_set_wakeup_enable(bus(priv)->dev, false);
|
|
|
+
|
|
|
+ iwlagn_prepare_restart(priv);
|
|
|
+
|
|
|
+ memset((void *)&ctx->active, 0, sizeof(ctx->active));
|
|
|
+ iwl_connection_init_rx_config(priv, ctx);
|
|
|
+ iwlagn_set_rxon_chain(priv, ctx);
|
|
|
+
|
|
|
+ mutex_unlock(&priv->shrd->mutex);
|
|
|
+ IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
|
+
|
|
|
+ ieee80211_resume_disconnect(vif);
|
|
|
+
|
|
|
+ return 1;
|
|
|
+}
|
|
|
+
|
|
|
+#endif
|
|
|
+
|
|
|
+static void iwlagn_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
|
|
|
+{
|
|
|
+ struct iwl_priv *priv = hw->priv;
|
|
|
+
|
|
|
+ IWL_DEBUG_MACDUMP(priv, "enter\n");
|
|
|
+
|
|
|
+ IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
|
|
|
+ ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
|
|
|
+
|
|
|
+ if (iwlagn_tx_skb(priv, skb))
|
|
|
+ dev_kfree_skb_any(skb);
|
|
|
+
|
|
|
+ IWL_DEBUG_MACDUMP(priv, "leave\n");
|
|
|
+}
|
|
|
+
|
|
|
+static void iwlagn_mac_update_tkip_key(struct ieee80211_hw *hw,
|
|
|
+ struct ieee80211_vif *vif,
|
|
|
+ struct ieee80211_key_conf *keyconf,
|
|
|
+ struct ieee80211_sta *sta,
|
|
|
+ u32 iv32, u16 *phase1key)
|
|
|
+{
|
|
|
+ struct iwl_priv *priv = hw->priv;
|
|
|
+
|
|
|
+ iwl_update_tkip_key(priv, vif, keyconf, sta, iv32, phase1key);
|
|
|
+}
|
|
|
+
|
|
|
+static int iwlagn_mac_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 iwl_priv *priv = hw->priv;
|
|
|
+ struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
|
|
|
+ struct iwl_rxon_context *ctx = vif_priv->ctx;
|
|
|
+ int ret;
|
|
|
+ bool is_default_wep_key = false;
|
|
|
+
|
|
|
+ IWL_DEBUG_MAC80211(priv, "enter\n");
|
|
|
+
|
|
|
+ if (iwlagn_mod_params.sw_crypto) {
|
|
|
+ IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n");
|
|
|
+ return -EOPNOTSUPP;
|
|
|
+ }
|
|
|
+
|
|
|
+ /*
|
|
|
+ * We could program these keys into the hardware as well, but we
|
|
|
+ * don't expect much multicast traffic in IBSS and having keys
|
|
|
+ * for more stations is probably more useful.
|
|
|
+ *
|
|
|
+ * Mark key TX-only and return 0.
|
|
|
+ */
|
|
|
+ if (vif->type == NL80211_IFTYPE_ADHOC &&
|
|
|
+ !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
|
|
|
+ key->hw_key_idx = WEP_INVALID_OFFSET;
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* If they key was TX-only, accept deletion */
|
|
|
+ if (cmd == DISABLE_KEY && key->hw_key_idx == WEP_INVALID_OFFSET)
|
|
|
+ return 0;
|
|
|
+
|
|
|
+ mutex_lock(&priv->shrd->mutex);
|
|
|
+ iwl_scan_cancel_timeout(priv, 100);
|
|
|
+
|
|
|
+ BUILD_BUG_ON(WEP_INVALID_OFFSET == IWLAGN_HW_KEY_DEFAULT);
|
|
|
+
|
|
|
+ /*
|
|
|
+ * If we are getting WEP group key and we didn't receive any key mapping
|
|
|
+ * so far, we are in legacy wep mode (group key only), otherwise we are
|
|
|
+ * in 1X mode.
|
|
|
+ * In legacy wep mode, we use another host command to the uCode.
|
|
|
+ */
|
|
|
+ if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
|
|
|
+ key->cipher == WLAN_CIPHER_SUITE_WEP104) && !sta) {
|
|
|
+ if (cmd == SET_KEY)
|
|
|
+ is_default_wep_key = !ctx->key_mapping_keys;
|
|
|
+ else
|
|
|
+ is_default_wep_key =
|
|
|
+ key->hw_key_idx == IWLAGN_HW_KEY_DEFAULT;
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+ switch (cmd) {
|
|
|
+ case SET_KEY:
|
|
|
+ if (is_default_wep_key) {
|
|
|
+ ret = iwl_set_default_wep_key(priv, vif_priv->ctx, key);
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ ret = iwl_set_dynamic_key(priv, vif_priv->ctx, key, sta);
|
|
|
+ if (ret) {
|
|
|
+ /*
|
|
|
+ * can't add key for RX, but we don't need it
|
|
|
+ * in the device for TX so still return 0
|
|
|
+ */
|
|
|
+ ret = 0;
|
|
|
+ key->hw_key_idx = WEP_INVALID_OFFSET;
|
|
|
+ }
|
|
|
+
|
|
|
+ IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n");
|
|
|
+ break;
|
|
|
+ case DISABLE_KEY:
|
|
|
+ if (is_default_wep_key)
|
|
|
+ ret = iwl_remove_default_wep_key(priv, ctx, key);
|
|
|
+ else
|
|
|
+ ret = iwl_remove_dynamic_key(priv, ctx, key, sta);
|
|
|
+
|
|
|
+ IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n");
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ ret = -EINVAL;
|
|
|
+ }
|
|
|
+
|
|
|
+ mutex_unlock(&priv->shrd->mutex);
|
|
|
+ IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
|
+
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+static int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw,
|
|
|
+ struct ieee80211_vif *vif,
|
|
|
+ enum ieee80211_ampdu_mlme_action action,
|
|
|
+ struct ieee80211_sta *sta, u16 tid, u16 *ssn,
|
|
|
+ u8 buf_size)
|
|
|
+{
|
|
|
+ struct iwl_priv *priv = hw->priv;
|
|
|
+ int ret = -EINVAL;
|
|
|
+ struct iwl_station_priv *sta_priv = (void *) sta->drv_priv;
|
|
|
+ struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
|
|
|
+
|
|
|
+ IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n",
|
|
|
+ sta->addr, tid);
|
|
|
+
|
|
|
+ if (!(priv->cfg->sku & EEPROM_SKU_CAP_11N_ENABLE))
|
|
|
+ return -EACCES;
|
|
|
+
|
|
|
+ IWL_DEBUG_MAC80211(priv, "enter\n");
|
|
|
+ mutex_lock(&priv->shrd->mutex);
|
|
|
+
|
|
|
+ switch (action) {
|
|
|
+ case IEEE80211_AMPDU_RX_START:
|
|
|
+ IWL_DEBUG_HT(priv, "start Rx\n");
|
|
|
+ ret = iwl_sta_rx_agg_start(priv, sta, tid, *ssn);
|
|
|
+ break;
|
|
|
+ case IEEE80211_AMPDU_RX_STOP:
|
|
|
+ IWL_DEBUG_HT(priv, "stop Rx\n");
|
|
|
+ ret = iwl_sta_rx_agg_stop(priv, sta, tid);
|
|
|
+ if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
|
|
|
+ ret = 0;
|
|
|
+ break;
|
|
|
+ case IEEE80211_AMPDU_TX_START:
|
|
|
+ IWL_DEBUG_HT(priv, "start Tx\n");
|
|
|
+ ret = iwlagn_tx_agg_start(priv, vif, sta, tid, ssn);
|
|
|
+ break;
|
|
|
+ case IEEE80211_AMPDU_TX_STOP:
|
|
|
+ IWL_DEBUG_HT(priv, "stop Tx\n");
|
|
|
+ ret = iwlagn_tx_agg_stop(priv, vif, sta, tid);
|
|
|
+ if ((ret == 0) && (priv->agg_tids_count > 0)) {
|
|
|
+ priv->agg_tids_count--;
|
|
|
+ IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n",
|
|
|
+ priv->agg_tids_count);
|
|
|
+ }
|
|
|
+ if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
|
|
|
+ ret = 0;
|
|
|
+ if (!priv->agg_tids_count && priv->cfg->ht_params &&
|
|
|
+ priv->cfg->ht_params->use_rts_for_aggregation) {
|
|
|
+ /*
|
|
|
+ * switch off RTS/CTS if it was previously enabled
|
|
|
+ */
|
|
|
+ sta_priv->lq_sta.lq.general_params.flags &=
|
|
|
+ ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK;
|
|
|
+ iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif),
|
|
|
+ &sta_priv->lq_sta.lq, CMD_ASYNC, false);
|
|
|
+ }
|
|
|
+ break;
|
|
|
+ case IEEE80211_AMPDU_TX_OPERATIONAL:
|
|
|
+ buf_size = min_t(int, buf_size, LINK_QUAL_AGG_FRAME_LIMIT_DEF);
|
|
|
+
|
|
|
+ iwl_trans_tx_agg_setup(trans(priv), ctx->ctxid, iwl_sta_id(sta),
|
|
|
+ tid, buf_size);
|
|
|
+
|
|
|
+ /*
|
|
|
+ * If the limit is 0, then it wasn't initialised yet,
|
|
|
+ * use the default. We can do that since we take the
|
|
|
+ * minimum below, and we don't want to go above our
|
|
|
+ * default due to hardware restrictions.
|
|
|
+ */
|
|
|
+ if (sta_priv->max_agg_bufsize == 0)
|
|
|
+ sta_priv->max_agg_bufsize =
|
|
|
+ LINK_QUAL_AGG_FRAME_LIMIT_DEF;
|
|
|
+
|
|
|
+ /*
|
|
|
+ * Even though in theory the peer could have different
|
|
|
+ * aggregation reorder buffer sizes for different sessions,
|
|
|
+ * our ucode doesn't allow for that and has a global limit
|
|
|
+ * for each station. Therefore, use the minimum of all the
|
|
|
+ * aggregation sessions and our default value.
|
|
|
+ */
|
|
|
+ sta_priv->max_agg_bufsize =
|
|
|
+ min(sta_priv->max_agg_bufsize, buf_size);
|
|
|
+
|
|
|
+ if (priv->cfg->ht_params &&
|
|
|
+ priv->cfg->ht_params->use_rts_for_aggregation) {
|
|
|
+ /*
|
|
|
+ * switch to RTS/CTS if it is the prefer protection
|
|
|
+ * method for HT traffic
|
|
|
+ */
|
|
|
+
|
|
|
+ sta_priv->lq_sta.lq.general_params.flags |=
|
|
|
+ LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK;
|
|
|
+ }
|
|
|
+ priv->agg_tids_count++;
|
|
|
+ IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n",
|
|
|
+ priv->agg_tids_count);
|
|
|
+
|
|
|
+ sta_priv->lq_sta.lq.agg_params.agg_frame_cnt_limit =
|
|
|
+ sta_priv->max_agg_bufsize;
|
|
|
+
|
|
|
+ iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif),
|
|
|
+ &sta_priv->lq_sta.lq, CMD_ASYNC, false);
|
|
|
+
|
|
|
+ IWL_INFO(priv, "Tx aggregation enabled on ra = %pM tid = %d\n",
|
|
|
+ sta->addr, tid);
|
|
|
+ ret = 0;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ mutex_unlock(&priv->shrd->mutex);
|
|
|
+ IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+static int iwlagn_mac_sta_add(struct ieee80211_hw *hw,
|
|
|
+ struct ieee80211_vif *vif,
|
|
|
+ struct ieee80211_sta *sta)
|
|
|
+{
|
|
|
+ struct iwl_priv *priv = hw->priv;
|
|
|
+ struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
|
|
|
+ struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
|
|
|
+ bool is_ap = vif->type == NL80211_IFTYPE_STATION;
|
|
|
+ int ret = 0;
|
|
|
+ u8 sta_id;
|
|
|
+
|
|
|
+ IWL_DEBUG_MAC80211(priv, "received request to add station %pM\n",
|
|
|
+ sta->addr);
|
|
|
+ mutex_lock(&priv->shrd->mutex);
|
|
|
+ IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n",
|
|
|
+ sta->addr);
|
|
|
+ sta_priv->sta_id = IWL_INVALID_STATION;
|
|
|
+
|
|
|
+ atomic_set(&sta_priv->pending_frames, 0);
|
|
|
+ if (vif->type == NL80211_IFTYPE_AP)
|
|
|
+ sta_priv->client = true;
|
|
|
+
|
|
|
+ ret = iwl_add_station_common(priv, vif_priv->ctx, sta->addr,
|
|
|
+ is_ap, sta, &sta_id);
|
|
|
+ if (ret) {
|
|
|
+ IWL_ERR(priv, "Unable to add station %pM (%d)\n",
|
|
|
+ sta->addr, ret);
|
|
|
+ /* Should we return success if return code is EEXIST ? */
|
|
|
+ goto out;
|
|
|
+ }
|
|
|
+
|
|
|
+ sta_priv->sta_id = sta_id;
|
|
|
+
|
|
|
+ /* Initialize rate scaling */
|
|
|
+ IWL_DEBUG_INFO(priv, "Initializing rate scaling for station %pM\n",
|
|
|
+ sta->addr);
|
|
|
+ iwl_rs_rate_init(priv, sta, sta_id);
|
|
|
+ out:
|
|
|
+ mutex_unlock(&priv->shrd->mutex);
|
|
|
+ IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
|
+
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+static void iwlagn_mac_channel_switch(struct ieee80211_hw *hw,
|
|
|
+ struct ieee80211_channel_switch *ch_switch)
|
|
|
+{
|
|
|
+ struct iwl_priv *priv = hw->priv;
|
|
|
+ const struct iwl_channel_info *ch_info;
|
|
|
+ struct ieee80211_conf *conf = &hw->conf;
|
|
|
+ struct ieee80211_channel *channel = ch_switch->channel;
|
|
|
+ struct iwl_ht_config *ht_conf = &priv->current_ht_config;
|
|
|
+ /*
|
|
|
+ * MULTI-FIXME
|
|
|
+ * When we add support for multiple interfaces, we need to
|
|
|
+ * revisit this. The channel switch command in the device
|
|
|
+ * only affects the BSS context, but what does that really
|
|
|
+ * mean? And what if we get a CSA on the second interface?
|
|
|
+ * This needs a lot of work.
|
|
|
+ */
|
|
|
+ struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
|
|
|
+ u16 ch;
|
|
|
+
|
|
|
+ IWL_DEBUG_MAC80211(priv, "enter\n");
|
|
|
+
|
|
|
+ mutex_lock(&priv->shrd->mutex);
|
|
|
+
|
|
|
+ if (iwl_is_rfkill(priv->shrd))
|
|
|
+ goto out;
|
|
|
+
|
|
|
+ if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status) ||
|
|
|
+ test_bit(STATUS_SCANNING, &priv->shrd->status) ||
|
|
|
+ test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->shrd->status))
|
|
|
+ goto out;
|
|
|
+
|
|
|
+ if (!iwl_is_associated_ctx(ctx))
|
|
|
+ goto out;
|
|
|
+
|
|
|
+ if (!priv->cfg->lib->set_channel_switch)
|
|
|
+ goto out;
|
|
|
+
|
|
|
+ ch = channel->hw_value;
|
|
|
+ if (le16_to_cpu(ctx->active.channel) == ch)
|
|
|
+ goto out;
|
|
|
+
|
|
|
+ ch_info = iwl_get_channel_info(priv, channel->band, ch);
|
|
|
+ if (!is_channel_valid(ch_info)) {
|
|
|
+ IWL_DEBUG_MAC80211(priv, "invalid channel\n");
|
|
|
+ goto out;
|
|
|
+ }
|
|
|
+
|
|
|
+ spin_lock_irq(&priv->shrd->lock);
|
|
|
+
|
|
|
+ priv->current_ht_config.smps = conf->smps_mode;
|
|
|
+
|
|
|
+ /* Configure HT40 channels */
|
|
|
+ ctx->ht.enabled = conf_is_ht(conf);
|
|
|
+ if (ctx->ht.enabled) {
|
|
|
+ if (conf_is_ht40_minus(conf)) {
|
|
|
+ ctx->ht.extension_chan_offset =
|
|
|
+ IEEE80211_HT_PARAM_CHA_SEC_BELOW;
|
|
|
+ ctx->ht.is_40mhz = true;
|
|
|
+ } else if (conf_is_ht40_plus(conf)) {
|
|
|
+ ctx->ht.extension_chan_offset =
|
|
|
+ IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
|
|
|
+ ctx->ht.is_40mhz = true;
|
|
|
+ } else {
|
|
|
+ ctx->ht.extension_chan_offset =
|
|
|
+ IEEE80211_HT_PARAM_CHA_SEC_NONE;
|
|
|
+ ctx->ht.is_40mhz = false;
|
|
|
+ }
|
|
|
+ } else
|
|
|
+ ctx->ht.is_40mhz = false;
|
|
|
+
|
|
|
+ if ((le16_to_cpu(ctx->staging.channel) != ch))
|
|
|
+ ctx->staging.flags = 0;
|
|
|
+
|
|
|
+ iwl_set_rxon_channel(priv, channel, ctx);
|
|
|
+ iwl_set_rxon_ht(priv, ht_conf);
|
|
|
+ iwl_set_flags_for_band(priv, ctx, channel->band, ctx->vif);
|
|
|
+
|
|
|
+ spin_unlock_irq(&priv->shrd->lock);
|
|
|
+
|
|
|
+ iwl_set_rate(priv);
|
|
|
+ /*
|
|
|
+ * at this point, staging_rxon has the
|
|
|
+ * configuration for channel switch
|
|
|
+ */
|
|
|
+ set_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->shrd->status);
|
|
|
+ priv->switch_channel = cpu_to_le16(ch);
|
|
|
+ if (priv->cfg->lib->set_channel_switch(priv, ch_switch)) {
|
|
|
+ clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->shrd->status);
|
|
|
+ priv->switch_channel = 0;
|
|
|
+ ieee80211_chswitch_done(ctx->vif, false);
|
|
|
+ }
|
|
|
+
|
|
|
+out:
|
|
|
+ mutex_unlock(&priv->shrd->mutex);
|
|
|
+ IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
|
+}
|
|
|
+
|
|
|
+static void iwlagn_configure_filter(struct ieee80211_hw *hw,
|
|
|
+ unsigned int changed_flags,
|
|
|
+ unsigned int *total_flags,
|
|
|
+ u64 multicast)
|
|
|
+{
|
|
|
+ struct iwl_priv *priv = hw->priv;
|
|
|
+ __le32 filter_or = 0, filter_nand = 0;
|
|
|
+ struct iwl_rxon_context *ctx;
|
|
|
+
|
|
|
+#define CHK(test, flag) do { \
|
|
|
+ if (*total_flags & (test)) \
|
|
|
+ filter_or |= (flag); \
|
|
|
+ else \
|
|
|
+ filter_nand |= (flag); \
|
|
|
+ } while (0)
|
|
|
+
|
|
|
+ IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n",
|
|
|
+ changed_flags, *total_flags);
|
|
|
+
|
|
|
+ CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK);
|
|
|
+ /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */
|
|
|
+ CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK);
|
|
|
+ CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK);
|
|
|
+
|
|
|
+#undef CHK
|
|
|
+
|
|
|
+ mutex_lock(&priv->shrd->mutex);
|
|
|
+
|
|
|
+ for_each_context(priv, ctx) {
|
|
|
+ ctx->staging.filter_flags &= ~filter_nand;
|
|
|
+ ctx->staging.filter_flags |= filter_or;
|
|
|
+
|
|
|
+ /*
|
|
|
+ * Not committing directly because hardware can perform a scan,
|
|
|
+ * but we'll eventually commit the filter flags change anyway.
|
|
|
+ */
|
|
|
+ }
|
|
|
+
|
|
|
+ mutex_unlock(&priv->shrd->mutex);
|
|
|
+
|
|
|
+ /*
|
|
|
+ * Receiving all multicast frames is always enabled by the
|
|
|
+ * default flags setup in iwl_connection_init_rx_config()
|
|
|
+ * since we currently do not support programming multicast
|
|
|
+ * filters into the device.
|
|
|
+ */
|
|
|
+ *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS |
|
|
|
+ FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
|
|
|
+}
|
|
|
+
|
|
|
+static void iwlagn_mac_flush(struct ieee80211_hw *hw, bool drop)
|
|
|
+{
|
|
|
+ struct iwl_priv *priv = hw->priv;
|
|
|
+
|
|
|
+ mutex_lock(&priv->shrd->mutex);
|
|
|
+ IWL_DEBUG_MAC80211(priv, "enter\n");
|
|
|
+
|
|
|
+ if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) {
|
|
|
+ IWL_DEBUG_TX(priv, "Aborting flush due to device shutdown\n");
|
|
|
+ goto done;
|
|
|
+ }
|
|
|
+ if (iwl_is_rfkill(priv->shrd)) {
|
|
|
+ IWL_DEBUG_TX(priv, "Aborting flush due to RF Kill\n");
|
|
|
+ goto done;
|
|
|
+ }
|
|
|
+
|
|
|
+ /*
|
|
|
+ * mac80211 will not push any more frames for transmit
|
|
|
+ * until the flush is completed
|
|
|
+ */
|
|
|
+ if (drop) {
|
|
|
+ IWL_DEBUG_MAC80211(priv, "send flush command\n");
|
|
|
+ if (iwlagn_txfifo_flush(priv, IWL_DROP_ALL)) {
|
|
|
+ IWL_ERR(priv, "flush request fail\n");
|
|
|
+ goto done;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ IWL_DEBUG_MAC80211(priv, "wait transmit/flush all frames\n");
|
|
|
+ iwl_trans_wait_tx_queue_empty(trans(priv));
|
|
|
+done:
|
|
|
+ mutex_unlock(&priv->shrd->mutex);
|
|
|
+ IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
|
+}
|
|
|
+
|
|
|
+static int iwlagn_mac_remain_on_channel(struct ieee80211_hw *hw,
|
|
|
+ struct ieee80211_channel *channel,
|
|
|
+ enum nl80211_channel_type channel_type,
|
|
|
+ int duration)
|
|
|
+{
|
|
|
+ struct iwl_priv *priv = hw->priv;
|
|
|
+ struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN];
|
|
|
+ int err = 0;
|
|
|
+
|
|
|
+ if (!(priv->shrd->valid_contexts & BIT(IWL_RXON_CTX_PAN)))
|
|
|
+ return -EOPNOTSUPP;
|
|
|
+
|
|
|
+ if (!(ctx->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT)))
|
|
|
+ return -EOPNOTSUPP;
|
|
|
+
|
|
|
+ IWL_DEBUG_MAC80211(priv, "enter\n");
|
|
|
+ mutex_lock(&priv->shrd->mutex);
|
|
|
+
|
|
|
+ if (test_bit(STATUS_SCAN_HW, &priv->shrd->status)) {
|
|
|
+ err = -EBUSY;
|
|
|
+ goto out;
|
|
|
+ }
|
|
|
+
|
|
|
+ priv->hw_roc_channel = channel;
|
|
|
+ priv->hw_roc_chantype = channel_type;
|
|
|
+ /* convert from ms to TU */
|
|
|
+ priv->hw_roc_duration = DIV_ROUND_UP(1000 * duration, 1024);
|
|
|
+ priv->hw_roc_start_notified = false;
|
|
|
+ cancel_delayed_work(&priv->hw_roc_disable_work);
|
|
|
+
|
|
|
+ if (!ctx->is_active) {
|
|
|
+ static const struct iwl_qos_info default_qos_data = {
|
|
|
+ .def_qos_parm = {
|
|
|
+ .ac[0] = {
|
|
|
+ .cw_min = cpu_to_le16(3),
|
|
|
+ .cw_max = cpu_to_le16(7),
|
|
|
+ .aifsn = 2,
|
|
|
+ .edca_txop = cpu_to_le16(1504),
|
|
|
+ },
|
|
|
+ .ac[1] = {
|
|
|
+ .cw_min = cpu_to_le16(7),
|
|
|
+ .cw_max = cpu_to_le16(15),
|
|
|
+ .aifsn = 2,
|
|
|
+ .edca_txop = cpu_to_le16(3008),
|
|
|
+ },
|
|
|
+ .ac[2] = {
|
|
|
+ .cw_min = cpu_to_le16(15),
|
|
|
+ .cw_max = cpu_to_le16(1023),
|
|
|
+ .aifsn = 3,
|
|
|
+ },
|
|
|
+ .ac[3] = {
|
|
|
+ .cw_min = cpu_to_le16(15),
|
|
|
+ .cw_max = cpu_to_le16(1023),
|
|
|
+ .aifsn = 7,
|
|
|
+ },
|
|
|
+ },
|
|
|
+ };
|
|
|
+
|
|
|
+ ctx->is_active = true;
|
|
|
+ ctx->qos_data = default_qos_data;
|
|
|
+ ctx->staging.dev_type = RXON_DEV_TYPE_P2P;
|
|
|
+ memcpy(ctx->staging.node_addr,
|
|
|
+ priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr,
|
|
|
+ ETH_ALEN);
|
|
|
+ memcpy(ctx->staging.bssid_addr,
|
|
|
+ priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr,
|
|
|
+ ETH_ALEN);
|
|
|
+ err = iwlagn_commit_rxon(priv, ctx);
|
|
|
+ if (err)
|
|
|
+ goto out;
|
|
|
+ ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK |
|
|
|
+ RXON_FILTER_PROMISC_MSK |
|
|
|
+ RXON_FILTER_CTL2HOST_MSK;
|
|
|
+
|
|
|
+ err = iwlagn_commit_rxon(priv, ctx);
|
|
|
+ if (err) {
|
|
|
+ iwlagn_disable_roc(priv);
|
|
|
+ goto out;
|
|
|
+ }
|
|
|
+ priv->hw_roc_setup = true;
|
|
|
+ }
|
|
|
+
|
|
|
+ err = iwl_scan_initiate(priv, ctx->vif, IWL_SCAN_ROC, channel->band);
|
|
|
+ if (err)
|
|
|
+ iwlagn_disable_roc(priv);
|
|
|
+
|
|
|
+ out:
|
|
|
+ mutex_unlock(&priv->shrd->mutex);
|
|
|
+ IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
|
+
|
|
|
+ return err;
|
|
|
+}
|
|
|
+
|
|
|
+static int iwlagn_mac_cancel_remain_on_channel(struct ieee80211_hw *hw)
|
|
|
+{
|
|
|
+ struct iwl_priv *priv = hw->priv;
|
|
|
+
|
|
|
+ if (!(priv->shrd->valid_contexts & BIT(IWL_RXON_CTX_PAN)))
|
|
|
+ return -EOPNOTSUPP;
|
|
|
+
|
|
|
+ IWL_DEBUG_MAC80211(priv, "enter\n");
|
|
|
+ mutex_lock(&priv->shrd->mutex);
|
|
|
+ iwl_scan_cancel_timeout(priv, priv->hw_roc_duration);
|
|
|
+ iwlagn_disable_roc(priv);
|
|
|
+ mutex_unlock(&priv->shrd->mutex);
|
|
|
+ IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int iwlagn_mac_tx_sync(struct ieee80211_hw *hw,
|
|
|
+ struct ieee80211_vif *vif,
|
|
|
+ const u8 *bssid,
|
|
|
+ enum ieee80211_tx_sync_type type)
|
|
|
+{
|
|
|
+ struct iwl_priv *priv = hw->priv;
|
|
|
+ struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
|
|
|
+ struct iwl_rxon_context *ctx = vif_priv->ctx;
|
|
|
+ int ret;
|
|
|
+ u8 sta_id;
|
|
|
+
|
|
|
+ IWL_DEBUG_MAC80211(priv, "enter\n");
|
|
|
+ mutex_lock(&priv->shrd->mutex);
|
|
|
+
|
|
|
+ if (iwl_is_associated_ctx(ctx)) {
|
|
|
+ ret = 0;
|
|
|
+ goto out;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (ctx->preauth_bssid || test_bit(STATUS_SCAN_HW,
|
|
|
+ &priv->shrd->status)) {
|
|
|
+ ret = -EBUSY;
|
|
|
+ goto out;
|
|
|
+ }
|
|
|
+
|
|
|
+ ret = iwl_add_station_common(priv, ctx, bssid, true, NULL, &sta_id);
|
|
|
+ if (ret)
|
|
|
+ goto out;
|
|
|
+
|
|
|
+ if (WARN_ON(sta_id != ctx->ap_sta_id)) {
|
|
|
+ ret = -EIO;
|
|
|
+ goto out_remove_sta;
|
|
|
+ }
|
|
|
+
|
|
|
+ memcpy(ctx->bssid, bssid, ETH_ALEN);
|
|
|
+ ctx->preauth_bssid = true;
|
|
|
+
|
|
|
+ ret = iwlagn_commit_rxon(priv, ctx);
|
|
|
+
|
|
|
+ if (ret == 0)
|
|
|
+ goto out;
|
|
|
+
|
|
|
+ out_remove_sta:
|
|
|
+ iwl_remove_station(priv, sta_id, bssid);
|
|
|
+ out:
|
|
|
+ mutex_unlock(&priv->shrd->mutex);
|
|
|
+ IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
|
+
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+static void iwlagn_mac_finish_tx_sync(struct ieee80211_hw *hw,
|
|
|
+ struct ieee80211_vif *vif,
|
|
|
+ const u8 *bssid,
|
|
|
+ enum ieee80211_tx_sync_type type)
|
|
|
+{
|
|
|
+ struct iwl_priv *priv = hw->priv;
|
|
|
+ struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
|
|
|
+ struct iwl_rxon_context *ctx = vif_priv->ctx;
|
|
|
+
|
|
|
+ IWL_DEBUG_MAC80211(priv, "enter\n");
|
|
|
+ mutex_lock(&priv->shrd->mutex);
|
|
|
+
|
|
|
+ if (iwl_is_associated_ctx(ctx))
|
|
|
+ goto out;
|
|
|
+
|
|
|
+ iwl_remove_station(priv, ctx->ap_sta_id, bssid);
|
|
|
+ ctx->preauth_bssid = false;
|
|
|
+ /* no need to commit */
|
|
|
+ out:
|
|
|
+ mutex_unlock(&priv->shrd->mutex);
|
|
|
+ IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
|
+}
|
|
|
+
|
|
|
+static void iwlagn_mac_rssi_callback(struct ieee80211_hw *hw,
|
|
|
+ enum ieee80211_rssi_event rssi_event)
|
|
|
+{
|
|
|
+ struct iwl_priv *priv = hw->priv;
|
|
|
+
|
|
|
+ IWL_DEBUG_MAC80211(priv, "enter\n");
|
|
|
+ mutex_lock(&priv->shrd->mutex);
|
|
|
+
|
|
|
+ if (priv->cfg->bt_params &&
|
|
|
+ priv->cfg->bt_params->advanced_bt_coexist) {
|
|
|
+ if (rssi_event == RSSI_EVENT_LOW)
|
|
|
+ priv->bt_enable_pspoll = true;
|
|
|
+ else if (rssi_event == RSSI_EVENT_HIGH)
|
|
|
+ priv->bt_enable_pspoll = false;
|
|
|
+
|
|
|
+ iwlagn_send_advance_bt_config(priv);
|
|
|
+ } else {
|
|
|
+ IWL_DEBUG_MAC80211(priv, "Advanced BT coex disabled,"
|
|
|
+ "ignoring RSSI callback\n");
|
|
|
+ }
|
|
|
+
|
|
|
+ mutex_unlock(&priv->shrd->mutex);
|
|
|
+ IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
|
+}
|
|
|
+
|
|
|
+static int iwlagn_mac_set_tim(struct ieee80211_hw *hw,
|
|
|
+ struct ieee80211_sta *sta, bool set)
|
|
|
+{
|
|
|
+ struct iwl_priv *priv = hw->priv;
|
|
|
+
|
|
|
+ queue_work(priv->shrd->workqueue, &priv->beacon_update);
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int iwlagn_mac_conf_tx(struct ieee80211_hw *hw,
|
|
|
+ struct ieee80211_vif *vif, u16 queue,
|
|
|
+ const struct ieee80211_tx_queue_params *params)
|
|
|
+{
|
|
|
+ struct iwl_priv *priv = hw->priv;
|
|
|
+ struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
|
|
|
+ struct iwl_rxon_context *ctx = vif_priv->ctx;
|
|
|
+ unsigned long flags;
|
|
|
+ int q;
|
|
|
+
|
|
|
+ if (WARN_ON(!ctx))
|
|
|
+ return -EINVAL;
|
|
|
+
|
|
|
+ IWL_DEBUG_MAC80211(priv, "enter\n");
|
|
|
+
|
|
|
+ if (!iwl_is_ready_rf(priv->shrd)) {
|
|
|
+ IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n");
|
|
|
+ return -EIO;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (queue >= AC_NUM) {
|
|
|
+ IWL_DEBUG_MAC80211(priv, "leave - queue >= AC_NUM %d\n", queue);
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ q = AC_NUM - 1 - queue;
|
|
|
+
|
|
|
+ spin_lock_irqsave(&priv->shrd->lock, flags);
|
|
|
+
|
|
|
+ ctx->qos_data.def_qos_parm.ac[q].cw_min =
|
|
|
+ cpu_to_le16(params->cw_min);
|
|
|
+ ctx->qos_data.def_qos_parm.ac[q].cw_max =
|
|
|
+ cpu_to_le16(params->cw_max);
|
|
|
+ ctx->qos_data.def_qos_parm.ac[q].aifsn = params->aifs;
|
|
|
+ ctx->qos_data.def_qos_parm.ac[q].edca_txop =
|
|
|
+ cpu_to_le16((params->txop * 32));
|
|
|
+
|
|
|
+ ctx->qos_data.def_qos_parm.ac[q].reserved1 = 0;
|
|
|
+
|
|
|
+ spin_unlock_irqrestore(&priv->shrd->lock, flags);
|
|
|
+
|
|
|
+ IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int iwlagn_mac_tx_last_beacon(struct ieee80211_hw *hw)
|
|
|
+{
|
|
|
+ struct iwl_priv *priv = hw->priv;
|
|
|
+
|
|
|
+ return priv->ibss_manager == IWL_IBSS_MANAGER;
|
|
|
+}
|
|
|
+
|
|
|
+static int iwl_set_mode(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
|
|
|
+{
|
|
|
+ iwl_connection_init_rx_config(priv, ctx);
|
|
|
+
|
|
|
+ iwlagn_set_rxon_chain(priv, ctx);
|
|
|
+
|
|
|
+ return iwlagn_commit_rxon(priv, ctx);
|
|
|
+}
|
|
|
+
|
|
|
+static int iwl_setup_interface(struct iwl_priv *priv,
|
|
|
+ struct iwl_rxon_context *ctx)
|
|
|
+{
|
|
|
+ struct ieee80211_vif *vif = ctx->vif;
|
|
|
+ int err;
|
|
|
+
|
|
|
+ lockdep_assert_held(&priv->shrd->mutex);
|
|
|
+
|
|
|
+ /*
|
|
|
+ * This variable will be correct only when there's just
|
|
|
+ * a single context, but all code using it is for hardware
|
|
|
+ * that supports only one context.
|
|
|
+ */
|
|
|
+ priv->iw_mode = vif->type;
|
|
|
+
|
|
|
+ ctx->is_active = true;
|
|
|
+
|
|
|
+ err = iwl_set_mode(priv, ctx);
|
|
|
+ if (err) {
|
|
|
+ if (!ctx->always_active)
|
|
|
+ ctx->is_active = false;
|
|
|
+ return err;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (priv->cfg->bt_params && priv->cfg->bt_params->advanced_bt_coexist &&
|
|
|
+ vif->type == NL80211_IFTYPE_ADHOC) {
|
|
|
+ /*
|
|
|
+ * pretend to have high BT traffic as long as we
|
|
|
+ * are operating in IBSS mode, as this will cause
|
|
|
+ * the rate scaling etc. to behave as intended.
|
|
|
+ */
|
|
|
+ priv->bt_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_HIGH;
|
|
|
+ }
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static int iwlagn_mac_add_interface(struct ieee80211_hw *hw,
|
|
|
+ struct ieee80211_vif *vif)
|
|
|
+{
|
|
|
+ struct iwl_priv *priv = hw->priv;
|
|
|
+ struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
|
|
|
+ struct iwl_rxon_context *tmp, *ctx = NULL;
|
|
|
+ int err;
|
|
|
+ enum nl80211_iftype viftype = ieee80211_vif_type_p2p(vif);
|
|
|
+
|
|
|
+ IWL_DEBUG_MAC80211(priv, "enter: type %d, addr %pM\n",
|
|
|
+ viftype, vif->addr);
|
|
|
+
|
|
|
+ cancel_delayed_work_sync(&priv->hw_roc_disable_work);
|
|
|
+
|
|
|
+ mutex_lock(&priv->shrd->mutex);
|
|
|
+
|
|
|
+ iwlagn_disable_roc(priv);
|
|
|
+
|
|
|
+ if (!iwl_is_ready_rf(priv->shrd)) {
|
|
|
+ IWL_WARN(priv, "Try to add interface when device not ready\n");
|
|
|
+ err = -EINVAL;
|
|
|
+ goto out;
|
|
|
+ }
|
|
|
+
|
|
|
+ for_each_context(priv, tmp) {
|
|
|
+ u32 possible_modes =
|
|
|
+ tmp->interface_modes | tmp->exclusive_interface_modes;
|
|
|
+
|
|
|
+ if (tmp->vif) {
|
|
|
+ /* check if this busy context is exclusive */
|
|
|
+ if (tmp->exclusive_interface_modes &
|
|
|
+ BIT(tmp->vif->type)) {
|
|
|
+ err = -EINVAL;
|
|
|
+ goto out;
|
|
|
+ }
|
|
|
+ continue;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (!(possible_modes & BIT(viftype)))
|
|
|
+ continue;
|
|
|
+
|
|
|
+ /* have maybe usable context w/o interface */
|
|
|
+ ctx = tmp;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (!ctx) {
|
|
|
+ err = -EOPNOTSUPP;
|
|
|
+ goto out;
|
|
|
+ }
|
|
|
+
|
|
|
+ vif_priv->ctx = ctx;
|
|
|
+ ctx->vif = vif;
|
|
|
+
|
|
|
+ err = iwl_setup_interface(priv, ctx);
|
|
|
+ if (!err)
|
|
|
+ goto out;
|
|
|
+
|
|
|
+ ctx->vif = NULL;
|
|
|
+ priv->iw_mode = NL80211_IFTYPE_STATION;
|
|
|
+ out:
|
|
|
+ mutex_unlock(&priv->shrd->mutex);
|
|
|
+
|
|
|
+ IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
|
+ return err;
|
|
|
+}
|
|
|
+
|
|
|
+static void iwl_teardown_interface(struct iwl_priv *priv,
|
|
|
+ struct ieee80211_vif *vif,
|
|
|
+ bool mode_change)
|
|
|
+{
|
|
|
+ struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
|
|
|
+
|
|
|
+ lockdep_assert_held(&priv->shrd->mutex);
|
|
|
+
|
|
|
+ if (priv->scan_vif == vif) {
|
|
|
+ iwl_scan_cancel_timeout(priv, 200);
|
|
|
+ iwl_force_scan_end(priv);
|
|
|
+ }
|
|
|
+
|
|
|
+ if (!mode_change) {
|
|
|
+ iwl_set_mode(priv, ctx);
|
|
|
+ if (!ctx->always_active)
|
|
|
+ ctx->is_active = false;
|
|
|
+ }
|
|
|
+
|
|
|
+ /*
|
|
|
+ * When removing the IBSS interface, overwrite the
|
|
|
+ * BT traffic load with the stored one from the last
|
|
|
+ * notification, if any. If this is a device that
|
|
|
+ * doesn't implement this, this has no effect since
|
|
|
+ * both values are the same and zero.
|
|
|
+ */
|
|
|
+ if (vif->type == NL80211_IFTYPE_ADHOC)
|
|
|
+ priv->bt_traffic_load = priv->last_bt_traffic_load;
|
|
|
+}
|
|
|
+
|
|
|
+static void iwlagn_mac_remove_interface(struct ieee80211_hw *hw,
|
|
|
+ struct ieee80211_vif *vif)
|
|
|
+{
|
|
|
+ struct iwl_priv *priv = hw->priv;
|
|
|
+ struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
|
|
|
+
|
|
|
+ IWL_DEBUG_MAC80211(priv, "enter\n");
|
|
|
+
|
|
|
+ mutex_lock(&priv->shrd->mutex);
|
|
|
+
|
|
|
+ if (WARN_ON(ctx->vif != vif)) {
|
|
|
+ struct iwl_rxon_context *tmp;
|
|
|
+ IWL_ERR(priv, "ctx->vif = %p, vif = %p\n", ctx->vif, vif);
|
|
|
+ for_each_context(priv, tmp)
|
|
|
+ IWL_ERR(priv, "\tID = %d:\tctx = %p\tctx->vif = %p\n",
|
|
|
+ tmp->ctxid, tmp, tmp->vif);
|
|
|
+ }
|
|
|
+ ctx->vif = NULL;
|
|
|
+
|
|
|
+ iwl_teardown_interface(priv, vif, false);
|
|
|
+
|
|
|
+ mutex_unlock(&priv->shrd->mutex);
|
|
|
+
|
|
|
+ IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
+static int iwlagn_mac_change_interface(struct ieee80211_hw *hw,
|
|
|
+ struct ieee80211_vif *vif,
|
|
|
+ enum nl80211_iftype newtype, bool newp2p)
|
|
|
+{
|
|
|
+ struct iwl_priv *priv = hw->priv;
|
|
|
+ struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
|
|
|
+ struct iwl_rxon_context *bss_ctx = &priv->contexts[IWL_RXON_CTX_BSS];
|
|
|
+ struct iwl_rxon_context *tmp;
|
|
|
+ enum nl80211_iftype newviftype = newtype;
|
|
|
+ u32 interface_modes;
|
|
|
+ int err;
|
|
|
+
|
|
|
+ IWL_DEBUG_MAC80211(priv, "enter\n");
|
|
|
+
|
|
|
+ newtype = ieee80211_iftype_p2p(newtype, newp2p);
|
|
|
+
|
|
|
+ mutex_lock(&priv->shrd->mutex);
|
|
|
+
|
|
|
+ if (!ctx->vif || !iwl_is_ready_rf(priv->shrd)) {
|
|
|
+ /*
|
|
|
+ * Huh? But wait ... this can maybe happen when
|
|
|
+ * we're in the middle of a firmware restart!
|
|
|
+ */
|
|
|
+ err = -EBUSY;
|
|
|
+ goto out;
|
|
|
+ }
|
|
|
+
|
|
|
+ interface_modes = ctx->interface_modes | ctx->exclusive_interface_modes;
|
|
|
+
|
|
|
+ if (!(interface_modes & BIT(newtype))) {
|
|
|
+ err = -EBUSY;
|
|
|
+ goto out;
|
|
|
+ }
|
|
|
+
|
|
|
+ /*
|
|
|
+ * Refuse a change that should be done by moving from the PAN
|
|
|
+ * context to the BSS context instead, if the BSS context is
|
|
|
+ * available and can support the new interface type.
|
|
|
+ */
|
|
|
+ if (ctx->ctxid == IWL_RXON_CTX_PAN && !bss_ctx->vif &&
|
|
|
+ (bss_ctx->interface_modes & BIT(newtype) ||
|
|
|
+ bss_ctx->exclusive_interface_modes & BIT(newtype))) {
|
|
|
+ BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
|
|
|
+ err = -EBUSY;
|
|
|
+ goto out;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (ctx->exclusive_interface_modes & BIT(newtype)) {
|
|
|
+ for_each_context(priv, tmp) {
|
|
|
+ if (ctx == tmp)
|
|
|
+ continue;
|
|
|
+
|
|
|
+ if (!tmp->vif)
|
|
|
+ continue;
|
|
|
+
|
|
|
+ /*
|
|
|
+ * The current mode switch would be exclusive, but
|
|
|
+ * another context is active ... refuse the switch.
|
|
|
+ */
|
|
|
+ err = -EBUSY;
|
|
|
+ goto out;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /* success */
|
|
|
+ iwl_teardown_interface(priv, vif, true);
|
|
|
+ vif->type = newviftype;
|
|
|
+ vif->p2p = newp2p;
|
|
|
+ err = iwl_setup_interface(priv, ctx);
|
|
|
+ WARN_ON(err);
|
|
|
+ /*
|
|
|
+ * We've switched internally, but submitting to the
|
|
|
+ * device may have failed for some reason. Mask this
|
|
|
+ * error, because otherwise mac80211 will not switch
|
|
|
+ * (and set the interface type back) and we'll be
|
|
|
+ * out of sync with it.
|
|
|
+ */
|
|
|
+ err = 0;
|
|
|
+
|
|
|
+ out:
|
|
|
+ mutex_unlock(&priv->shrd->mutex);
|
|
|
+ IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
|
+
|
|
|
+ return err;
|
|
|
+}
|
|
|
+
|
|
|
+static int iwlagn_mac_hw_scan(struct ieee80211_hw *hw,
|
|
|
+ struct ieee80211_vif *vif,
|
|
|
+ struct cfg80211_scan_request *req)
|
|
|
+{
|
|
|
+ struct iwl_priv *priv = hw->priv;
|
|
|
+ int ret;
|
|
|
+
|
|
|
+ IWL_DEBUG_MAC80211(priv, "enter\n");
|
|
|
+
|
|
|
+ if (req->n_channels == 0)
|
|
|
+ return -EINVAL;
|
|
|
+
|
|
|
+ mutex_lock(&priv->shrd->mutex);
|
|
|
+
|
|
|
+ /*
|
|
|
+ * If an internal scan is in progress, just set
|
|
|
+ * up the scan_request as per above.
|
|
|
+ */
|
|
|
+ if (priv->scan_type != IWL_SCAN_NORMAL) {
|
|
|
+ IWL_DEBUG_SCAN(priv,
|
|
|
+ "SCAN request during internal scan - defer\n");
|
|
|
+ priv->scan_request = req;
|
|
|
+ priv->scan_vif = vif;
|
|
|
+ ret = 0;
|
|
|
+ } else {
|
|
|
+ priv->scan_request = req;
|
|
|
+ priv->scan_vif = vif;
|
|
|
+ /*
|
|
|
+ * mac80211 will only ask for one band at a time
|
|
|
+ * so using channels[0] here is ok
|
|
|
+ */
|
|
|
+ ret = iwl_scan_initiate(priv, vif, IWL_SCAN_NORMAL,
|
|
|
+ req->channels[0]->band);
|
|
|
+ if (ret) {
|
|
|
+ priv->scan_request = NULL;
|
|
|
+ priv->scan_vif = NULL;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
|
+
|
|
|
+ mutex_unlock(&priv->shrd->mutex);
|
|
|
+
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+static int iwlagn_mac_sta_remove(struct ieee80211_hw *hw,
|
|
|
+ struct ieee80211_vif *vif,
|
|
|
+ struct ieee80211_sta *sta)
|
|
|
+{
|
|
|
+ struct iwl_priv *priv = hw->priv;
|
|
|
+ struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
|
|
|
+ int ret;
|
|
|
+
|
|
|
+ IWL_DEBUG_MAC80211(priv, "enter: received request to remove "
|
|
|
+ "station %pM\n", sta->addr);
|
|
|
+ mutex_lock(&priv->shrd->mutex);
|
|
|
+ IWL_DEBUG_INFO(priv, "proceeding to remove station %pM\n",
|
|
|
+ sta->addr);
|
|
|
+ ret = iwl_remove_station(priv, sta_priv->sta_id, sta->addr);
|
|
|
+ if (ret)
|
|
|
+ IWL_DEBUG_QUIET_RFKILL(priv, "Error removing station %pM\n",
|
|
|
+ sta->addr);
|
|
|
+ mutex_unlock(&priv->shrd->mutex);
|
|
|
+ IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
|
+
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+static void iwl_sta_modify_ps_wake(struct iwl_priv *priv, int sta_id)
|
|
|
+{
|
|
|
+ unsigned long flags;
|
|
|
+
|
|
|
+ spin_lock_irqsave(&priv->shrd->sta_lock, flags);
|
|
|
+ priv->stations[sta_id].sta.station_flags &= ~STA_FLG_PWR_SAVE_MSK;
|
|
|
+ priv->stations[sta_id].sta.station_flags_msk = STA_FLG_PWR_SAVE_MSK;
|
|
|
+ priv->stations[sta_id].sta.sta.modify_mask = 0;
|
|
|
+ priv->stations[sta_id].sta.sleep_tx_count = 0;
|
|
|
+ priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
|
|
|
+ iwl_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
|
|
|
+ spin_unlock_irqrestore(&priv->shrd->sta_lock, flags);
|
|
|
+
|
|
|
+}
|
|
|
+
|
|
|
+static void iwlagn_mac_sta_notify(struct ieee80211_hw *hw,
|
|
|
+ struct ieee80211_vif *vif,
|
|
|
+ enum sta_notify_cmd cmd,
|
|
|
+ struct ieee80211_sta *sta)
|
|
|
+{
|
|
|
+ struct iwl_priv *priv = hw->priv;
|
|
|
+ struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
|
|
|
+ int sta_id;
|
|
|
+
|
|
|
+ IWL_DEBUG_MAC80211(priv, "enter\n");
|
|
|
+
|
|
|
+ switch (cmd) {
|
|
|
+ case STA_NOTIFY_SLEEP:
|
|
|
+ WARN_ON(!sta_priv->client);
|
|
|
+ sta_priv->asleep = true;
|
|
|
+ if (atomic_read(&sta_priv->pending_frames) > 0)
|
|
|
+ ieee80211_sta_block_awake(hw, sta, true);
|
|
|
+ break;
|
|
|
+ case STA_NOTIFY_AWAKE:
|
|
|
+ WARN_ON(!sta_priv->client);
|
|
|
+ if (!sta_priv->asleep)
|
|
|
+ break;
|
|
|
+ sta_priv->asleep = false;
|
|
|
+ sta_id = iwl_sta_id(sta);
|
|
|
+ if (sta_id != IWL_INVALID_STATION)
|
|
|
+ iwl_sta_modify_ps_wake(priv, sta_id);
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ IWL_DEBUG_MAC80211(priv, "leave\n");
|
|
|
+}
|
|
|
+
|
|
|
+struct ieee80211_ops iwlagn_hw_ops = {
|
|
|
+ .tx = iwlagn_mac_tx,
|
|
|
+ .start = iwlagn_mac_start,
|
|
|
+ .stop = iwlagn_mac_stop,
|
|
|
+#ifdef CONFIG_PM_SLEEP
|
|
|
+ .suspend = iwlagn_mac_suspend,
|
|
|
+ .resume = iwlagn_mac_resume,
|
|
|
+#endif
|
|
|
+ .add_interface = iwlagn_mac_add_interface,
|
|
|
+ .remove_interface = iwlagn_mac_remove_interface,
|
|
|
+ .change_interface = iwlagn_mac_change_interface,
|
|
|
+ .config = iwlagn_mac_config,
|
|
|
+ .configure_filter = iwlagn_configure_filter,
|
|
|
+ .set_key = iwlagn_mac_set_key,
|
|
|
+ .update_tkip_key = iwlagn_mac_update_tkip_key,
|
|
|
+ .set_rekey_data = iwlagn_mac_set_rekey_data,
|
|
|
+ .conf_tx = iwlagn_mac_conf_tx,
|
|
|
+ .bss_info_changed = iwlagn_bss_info_changed,
|
|
|
+ .ampdu_action = iwlagn_mac_ampdu_action,
|
|
|
+ .hw_scan = iwlagn_mac_hw_scan,
|
|
|
+ .sta_notify = iwlagn_mac_sta_notify,
|
|
|
+ .sta_add = iwlagn_mac_sta_add,
|
|
|
+ .sta_remove = iwlagn_mac_sta_remove,
|
|
|
+ .channel_switch = iwlagn_mac_channel_switch,
|
|
|
+ .flush = iwlagn_mac_flush,
|
|
|
+ .tx_last_beacon = iwlagn_mac_tx_last_beacon,
|
|
|
+ .remain_on_channel = iwlagn_mac_remain_on_channel,
|
|
|
+ .cancel_remain_on_channel = iwlagn_mac_cancel_remain_on_channel,
|
|
|
+ .rssi_callback = iwlagn_mac_rssi_callback,
|
|
|
+ CFG80211_TESTMODE_CMD(iwlagn_mac_testmode_cmd)
|
|
|
+ CFG80211_TESTMODE_DUMP(iwlagn_mac_testmode_dump)
|
|
|
+ .tx_sync = iwlagn_mac_tx_sync,
|
|
|
+ .finish_tx_sync = iwlagn_mac_finish_tx_sync,
|
|
|
+ .set_tim = iwlagn_mac_set_tim,
|
|
|
+};
|
|
|
+
|
|
|
+/* This function both allocates and initializes hw and priv. */
|
|
|
+struct ieee80211_hw *iwl_alloc_all(void)
|
|
|
+{
|
|
|
+ struct iwl_priv *priv;
|
|
|
+ /* mac80211 allocates memory for this device instance, including
|
|
|
+ * space for this driver's private structure */
|
|
|
+ struct ieee80211_hw *hw;
|
|
|
+
|
|
|
+ hw = ieee80211_alloc_hw(sizeof(struct iwl_priv), &iwlagn_hw_ops);
|
|
|
+ if (!hw)
|
|
|
+ goto out;
|
|
|
+
|
|
|
+ priv = hw->priv;
|
|
|
+ priv->hw = hw;
|
|
|
+
|
|
|
+out:
|
|
|
+ return hw;
|
|
|
+}
|