drivers/net/wireless/iwlwifi/iwl-agn.h

   1 /******************************************************************************
   2  *
   3  * This file is provided under a dual BSD/GPLv2 license.  When using or
   4  * redistributing this file, you may do so under either license.
   5  *
   6  * GPL LICENSE SUMMARY
   7  *
   8  * Copyright(c) 2008 - 2012 Intel Corporation. All rights reserved.
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of version 2 of the GNU General Public License as
  12  * published by the Free Software Foundation.
  13  *
  14  * This program is distributed in the hope that it will be useful, but
  15  * WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  22  * USA
  23  *
  24  * The full GNU General Public License is included in this distribution
  25  * in the file called LICENSE.GPL.
  26  *
  27  * Contact Information:
  28  *  Intel Linux Wireless <ilw@linux.intel.com>
  29  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  30  *
  31  * BSD LICENSE
  32  *
  33  * Copyright(c) 2005 - 2012 Intel Corporation. All rights reserved.
  34  * All rights reserved.
  35  *
  36  * Redistribution and use in source and binary forms, with or without
  37  * modification, are permitted provided that the following conditions
  38  * are met:
  39  *
  40  *  * Redistributions of source code must retain the above copyright
  41  *    notice, this list of conditions and the following disclaimer.
  42  *  * Redistributions in binary form must reproduce the above copyright
  43  *    notice, this list of conditions and the following disclaimer in
  44  *    the documentation and/or other materials provided with the
  45  *    distribution.
  46  *  * Neither the name Intel Corporation nor the names of its
  47  *    contributors may be used to endorse or promote products derived
  48  *    from this software without specific prior written permission.
  49  *
  50  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  51  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  52  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  53  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  54  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  55  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  56  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  57  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  58  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  59  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  60  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  61  *****************************************************************************/
  62
  63 #ifndef __iwl_agn_h__
  64 #define __iwl_agn_h__
  65
  66 #include "iwl-dev.h"
  67
  68 struct iwl_ucode_capabilities;
  69
  70 extern struct ieee80211_ops iwlagn_hw_ops;
  71
  72 static inline void iwl_set_calib_hdr(struct iwl_calib_hdr *hdr, u8 cmd)
  73 {
  74         hdr->op_code = cmd;
  75         hdr->first_group = 0;
  76         hdr->groups_num = 1;
  77         hdr->data_valid = 1;
  78 }
  79
  80 void iwl_down(struct iwl_priv *priv);
  81 void iwl_cancel_deferred_work(struct iwl_priv *priv);
  82 void iwlagn_prepare_restart(struct iwl_priv *priv);
  83 void iwl_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb);
  84 int __must_check iwl_rx_dispatch(struct iwl_op_mode *op_mode,
  85                                  struct iwl_rx_mem_buffer *rxb,
  86                                  struct iwl_device_cmd *cmd);
  87 void iwl_stop_sw_queue(struct iwl_op_mode *op_mode, u8 ac);
  88 void iwl_wake_sw_queue(struct iwl_op_mode *op_mode, u8 ac);
  89 void iwl_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state);
  90 void iwl_stop_sw_queue(struct iwl_op_mode *op_mode, u8 ac);
  91 void iwl_nic_error(struct iwl_op_mode *op_mode);
  92
  93 /* MAC80211 */
  94 struct ieee80211_hw *iwl_alloc_all(void);
  95 int iwlagn_mac_setup_register(struct iwl_priv *priv,
  96                               struct iwl_ucode_capabilities *capa);
  97 void iwlagn_mac_unregister(struct iwl_priv *priv);
  98
  99 /* RXON */
 100 int iwlagn_set_pan_params(struct iwl_priv *priv);
 101 int iwlagn_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 102 void iwlagn_set_rxon_chain(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 103 int iwlagn_mac_config(struct ieee80211_hw *hw, u32 changed);
 104 void iwlagn_bss_info_changed(struct ieee80211_hw *hw,
 105                              struct ieee80211_vif *vif,
 106                              struct ieee80211_bss_conf *bss_conf,
 107                              u32 changes);
 108 void iwlagn_config_ht40(struct ieee80211_conf *conf,
 109                         struct iwl_rxon_context *ctx);
 110
 111 /* uCode */
 112 int iwlagn_rx_calib_result(struct iwl_priv *priv,
 113                             struct iwl_rx_mem_buffer *rxb,
 114                             struct iwl_device_cmd *cmd);
 115 void iwl_init_context(struct iwl_priv *priv, u32 ucode_flags);
 116
 117 /* lib */
 118 int iwlagn_send_tx_power(struct iwl_priv *priv);
 119 void iwlagn_temperature(struct iwl_priv *priv);
 120 u16 iwl_eeprom_calib_version(struct iwl_shared *shrd);
 121 int iwlagn_txfifo_flush(struct iwl_priv *priv, u16 flush_control);
 122 void iwlagn_dev_txfifo_flush(struct iwl_priv *priv, u16 flush_control);
 123 int iwlagn_send_beacon_cmd(struct iwl_priv *priv);
 124 #ifdef CONFIG_PM_SLEEP
 125 int iwlagn_send_patterns(struct iwl_priv *priv,
 126                          struct cfg80211_wowlan *wowlan);
 127 int iwlagn_suspend(struct iwl_priv *priv,
 128                    struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan);
 129 #endif
 130
 131 /* rx */
 132 int iwlagn_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band);
 133 void iwl_setup_rx_handlers(struct iwl_priv *priv);
 134
 135
 136 /* tx */
 137 int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb);
 138 int iwlagn_tx_agg_start(struct iwl_priv *priv, struct ieee80211_vif *vif,
 139                         struct ieee80211_sta *sta, u16 tid, u16 *ssn);
 140 int iwlagn_tx_agg_oper(struct iwl_priv *priv, struct ieee80211_vif *vif,
 141                         struct ieee80211_sta *sta, u16 tid, u8 buf_size);
 142 int iwlagn_tx_agg_stop(struct iwl_priv *priv, struct ieee80211_vif *vif,
 143                        struct ieee80211_sta *sta, u16 tid);
 144 int iwlagn_rx_reply_compressed_ba(struct iwl_priv *priv,
 145                                    struct iwl_rx_mem_buffer *rxb,
 146                                    struct iwl_device_cmd *cmd);
 147 int iwlagn_rx_reply_tx(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb,
 148                                struct iwl_device_cmd *cmd);
 149
 150 static inline u32 iwl_tx_status_to_mac80211(u32 status)
 151 {
 152         status &= TX_STATUS_MSK;
 153
 154         switch (status) {
 155         case TX_STATUS_SUCCESS:
 156         case TX_STATUS_DIRECT_DONE:
 157                 return IEEE80211_TX_STAT_ACK;
 158         case TX_STATUS_FAIL_DEST_PS:
 159         case TX_STATUS_FAIL_PASSIVE_NO_RX:
 160                 return IEEE80211_TX_STAT_TX_FILTERED;
 161         default:
 162                 return 0;
 163         }
 164 }
 165
 166 static inline bool iwl_is_tx_success(u32 status)
 167 {
 168         status &= TX_STATUS_MSK;
 169         return (status == TX_STATUS_SUCCESS) ||
 170                (status == TX_STATUS_DIRECT_DONE);
 171 }
 172
 173 u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant_idx, u8 valid);
 174
 175 /* scan */
 176 void iwlagn_post_scan(struct iwl_priv *priv);
 177 void iwlagn_disable_roc(struct iwl_priv *priv);
 178
 179 /* bt coex */
 180 void iwlagn_send_advance_bt_config(struct iwl_priv *priv);
 181 int iwlagn_bt_coex_profile_notif(struct iwl_priv *priv,
 182                                   struct iwl_rx_mem_buffer *rxb,
 183                                   struct iwl_device_cmd *cmd);
 184 void iwlagn_bt_rx_handler_setup(struct iwl_priv *priv);
 185 void iwlagn_bt_setup_deferred_work(struct iwl_priv *priv);
 186 void iwlagn_bt_cancel_deferred_work(struct iwl_priv *priv);
 187 void iwlagn_bt_coex_rssi_monitor(struct iwl_priv *priv);
 188 void iwlagn_bt_adjust_rssi_monitor(struct iwl_priv *priv, bool rssi_ena);
 189
 190 #ifdef CONFIG_IWLWIFI_DEBUG
 191 const char *iwl_get_tx_fail_reason(u32 status);
 192 const char *iwl_get_agg_tx_fail_reason(u16 status);
 193 #else
 194 static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
 195 static inline const char *iwl_get_agg_tx_fail_reason(u16 status) { return ""; }
 196 #endif
 197
 198
 199 /* station management */
 200 int iwlagn_manage_ibss_station(struct iwl_priv *priv,
 201                                struct ieee80211_vif *vif, bool add);
 202 #define IWL_STA_DRIVER_ACTIVE BIT(0) /* driver entry is active */
 203 #define IWL_STA_UCODE_ACTIVE  BIT(1) /* ucode entry is active */
 204 #define IWL_STA_UCODE_INPROGRESS  BIT(2) /* ucode entry is in process of
 205                                             being activated */
 206 #define IWL_STA_LOCAL BIT(3) /* station state not directed by mac80211;
 207                                 (this is for the IBSS BSSID stations) */
 208 #define IWL_STA_BCAST BIT(4) /* this station is the special bcast station */
 209
 210
 211 void iwl_restore_stations(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 212 void iwl_clear_ucode_stations(struct iwl_priv *priv,
 213                               struct iwl_rxon_context *ctx);
 214 void iwl_dealloc_bcast_stations(struct iwl_priv *priv);
 215 int iwl_get_free_ucode_key_offset(struct iwl_priv *priv);
 216 int iwl_send_add_sta(struct iwl_priv *priv,
 217                      struct iwl_addsta_cmd *sta, u8 flags);
 218 int iwl_add_station_common(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
 219                            const u8 *addr, bool is_ap,
 220                            struct ieee80211_sta *sta, u8 *sta_id_r);
 221 int iwl_remove_station(struct iwl_priv *priv, const u8 sta_id,
 222                        const u8 *addr);
 223 u8 iwl_prep_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
 224                     const u8 *addr, bool is_ap, struct ieee80211_sta *sta);
 225
 226 void iwl_sta_fill_lq(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
 227                      u8 sta_id, struct iwl_link_quality_cmd *link_cmd);
 228 int iwl_send_lq_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
 229                     struct iwl_link_quality_cmd *lq, u8 flags, bool init);
 230 void iwl_reprogram_ap_sta(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 231 int iwl_add_sta_callback(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb,
 232                                struct iwl_device_cmd *cmd);
 233
 234
 235 /**
 236  * iwl_clear_driver_stations - clear knowledge of all stations from driver
 237  * @priv: iwl priv struct
 238  *
 239  * This is called during iwl_down() to make sure that in the case
 240  * we're coming there from a hardware restart mac80211 will be
 241  * able to reconfigure stations -- if we're getting there in the
 242  * normal down flow then the stations will already be cleared.
 243  */
 244 static inline void iwl_clear_driver_stations(struct iwl_priv *priv)
 245 {
 246         unsigned long flags;
 247         struct iwl_rxon_context *ctx;
 248
 249         spin_lock_irqsave(&priv->shrd->sta_lock, flags);
 250         memset(priv->stations, 0, sizeof(priv->stations));
 251         priv->num_stations = 0;
 252
 253         priv->ucode_key_table = 0;
 254
 255         for_each_context(priv, ctx) {
 256                 /*
 257                  * Remove all key information that is not stored as part
 258                  * of station information since mac80211 may not have had
 259                  * a chance to remove all the keys. When device is
 260                  * reconfigured by mac80211 after an error all keys will
 261                  * be reconfigured.
 262                  */
 263                 memset(ctx->wep_keys, 0, sizeof(ctx->wep_keys));
 264                 ctx->key_mapping_keys = 0;
 265         }
 266
 267         spin_unlock_irqrestore(&priv->shrd->sta_lock, flags);
 268 }
 269
 270 static inline int iwl_sta_id(struct ieee80211_sta *sta)
 271 {
 272         if (WARN_ON(!sta))
 273                 return IWL_INVALID_STATION;
 274
 275         return ((struct iwl_station_priv *)sta->drv_priv)->sta_id;
 276 }
 277
 278 /**
 279  * iwl_sta_id_or_broadcast - return sta_id or broadcast sta
 280  * @priv: iwl priv
 281  * @context: the current context
 282  * @sta: mac80211 station
 283  *
 284  * In certain circumstances mac80211 passes a station pointer
 285  * that may be %NULL, for example during TX or key setup. In
 286  * that case, we need to use the broadcast station, so this
 287  * inline wraps that pattern.
 288  */
 289 static inline int iwl_sta_id_or_broadcast(struct iwl_priv *priv,
 290                                           struct iwl_rxon_context *context,
 291                                           struct ieee80211_sta *sta)
 292 {
 293         int sta_id;
 294
 295         if (!sta)
 296                 return context->bcast_sta_id;
 297
 298         sta_id = iwl_sta_id(sta);
 299
 300         /*
 301          * mac80211 should not be passing a partially
 302          * initialised station!
 303          */
 304         WARN_ON(sta_id == IWL_INVALID_STATION);
 305
 306         return sta_id;
 307 }
 308
 309 int iwlagn_alloc_bcast_station(struct iwl_priv *priv,
 310                                struct iwl_rxon_context *ctx);
 311 int iwlagn_add_bssid_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
 312                              const u8 *addr, u8 *sta_id_r);
 313 int iwl_remove_default_wep_key(struct iwl_priv *priv,
 314                                struct iwl_rxon_context *ctx,
 315                                struct ieee80211_key_conf *key);
 316 int iwl_set_default_wep_key(struct iwl_priv *priv,
 317                             struct iwl_rxon_context *ctx,
 318                             struct ieee80211_key_conf *key);
 319 int iwl_restore_default_wep_keys(struct iwl_priv *priv,
 320                                  struct iwl_rxon_context *ctx);
 321 int iwl_set_dynamic_key(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
 322                         struct ieee80211_key_conf *key,
 323                         struct ieee80211_sta *sta);
 324 int iwl_remove_dynamic_key(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
 325                            struct ieee80211_key_conf *key,
 326                            struct ieee80211_sta *sta);
 327 void iwl_update_tkip_key(struct iwl_priv *priv,
 328                          struct ieee80211_vif *vif,
 329                          struct ieee80211_key_conf *keyconf,
 330                          struct ieee80211_sta *sta, u32 iv32, u16 *phase1key);
 331 int iwl_sta_tx_modify_enable_tid(struct iwl_priv *priv, int sta_id, int tid);
 332 int iwl_sta_rx_agg_start(struct iwl_priv *priv, struct ieee80211_sta *sta,
 333                          int tid, u16 ssn);
 334 int iwl_sta_rx_agg_stop(struct iwl_priv *priv, struct ieee80211_sta *sta,
 335                         int tid);
 336 void iwl_sta_modify_sleep_tx_count(struct iwl_priv *priv, int sta_id, int cnt);
 337 int iwl_update_bcast_station(struct iwl_priv *priv,
 338                              struct iwl_rxon_context *ctx);
 339 int iwl_update_bcast_stations(struct iwl_priv *priv);
 340
 341 /* rate */
 342 static inline u32 iwl_ant_idx_to_flags(u8 ant_idx)
 343 {
 344         return BIT(ant_idx) << RATE_MCS_ANT_POS;
 345 }
 346
 347 static inline u8 iwl_hw_get_rate(__le32 rate_n_flags)
 348 {
 349         return le32_to_cpu(rate_n_flags) & RATE_MCS_RATE_MSK;
 350 }
 351
 352 static inline __le32 iwl_hw_set_rate_n_flags(u8 rate, u32 flags)
 353 {
 354         return cpu_to_le32(flags|(u32)rate);
 355 }
 356
 357 /* eeprom */
 358 void iwl_eeprom_enhanced_txpower(struct iwl_priv *priv);
 359 void iwl_eeprom_get_mac(const struct iwl_shared *shrd, u8 *mac);
 360
 361 extern int iwl_alive_start(struct iwl_priv *priv);
 362 /* svtool */
 363 #ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE
 364 extern int iwlagn_mac_testmode_cmd(struct ieee80211_hw *hw, void *data,
 365                                    int len);
 366 extern int iwlagn_mac_testmode_dump(struct ieee80211_hw *hw,
 367                                     struct sk_buff *skb,
 368                                     struct netlink_callback *cb,
 369                                     void *data, int len);
 370 extern void iwl_testmode_init(struct iwl_priv *priv);
 371 extern void iwl_testmode_cleanup(struct iwl_priv *priv);
 372 #else
 373 static inline
 374 int iwlagn_mac_testmode_cmd(struct ieee80211_hw *hw, void *data, int len)
 375 {
 376         return -ENOSYS;
 377 }
 378 static inline
 379 int iwlagn_mac_testmode_dump(struct ieee80211_hw *hw, struct sk_buff *skb,
 380                       struct netlink_callback *cb,
 381                       void *data, int len)
 382 {
 383         return -ENOSYS;
 384 }
 385 static inline
 386 void iwl_testmode_init(struct iwl_priv *priv)
 387 {
 388 }
 389 static inline
 390 void iwl_testmode_cleanup(struct iwl_priv *priv)
 391 {
 392 }
 393 #endif
 394
 395 #endif /* __iwl_agn_h__ */