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 - 2011 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 - 2011 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 iwlagn_ucode_capabilities {
  69         u32 max_probe_length;
  70         u32 standard_phy_calibration_size;
  71         u32 flags;
  72 };
  73
  74 extern struct ieee80211_ops iwlagn_hw_ops;
  75
  76 int iwl_reset_ict(struct iwl_trans *trans);
  77
  78 static inline void iwl_set_calib_hdr(struct iwl_calib_hdr *hdr, u8 cmd)
  79 {
  80         hdr->op_code = cmd;
  81         hdr->first_group = 0;
  82         hdr->groups_num = 1;
  83         hdr->data_valid = 1;
  84 }
  85
  86 void __iwl_down(struct iwl_priv *priv);
  87 void iwl_down(struct iwl_priv *priv);
  88 void iwlagn_prepare_restart(struct iwl_priv *priv);
  89
  90 /* MAC80211 */
  91 struct ieee80211_hw *iwl_alloc_all(void);
  92 int iwlagn_mac_setup_register(struct iwl_priv *priv,
  93                               struct iwlagn_ucode_capabilities *capa);
  94 void iwlagn_mac_unregister(struct iwl_priv *priv);
  95
  96 /* RXON */
  97 int iwlagn_set_pan_params(struct iwl_priv *priv);
  98 int iwlagn_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
  99 void iwlagn_set_rxon_chain(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 100 int iwlagn_mac_config(struct ieee80211_hw *hw, u32 changed);
 101 void iwlagn_bss_info_changed(struct ieee80211_hw *hw,
 102                              struct ieee80211_vif *vif,
 103                              struct ieee80211_bss_conf *bss_conf,
 104                              u32 changes);
 105 void iwlagn_config_ht40(struct ieee80211_conf *conf,
 106                         struct iwl_rxon_context *ctx);
 107
 108 /* uCode */
 109 int iwlagn_rx_calib_result(struct iwl_priv *priv,
 110                             struct iwl_rx_mem_buffer *rxb,
 111                             struct iwl_device_cmd *cmd);
 112
 113 /* lib */
 114 int iwlagn_send_tx_power(struct iwl_priv *priv);
 115 void iwlagn_temperature(struct iwl_priv *priv);
 116 u16 iwl_eeprom_calib_version(struct iwl_shared *shrd);
 117 int iwlagn_txfifo_flush(struct iwl_priv *priv, u16 flush_control);
 118 void iwlagn_dev_txfifo_flush(struct iwl_priv *priv, u16 flush_control);
 119 int iwlagn_send_beacon_cmd(struct iwl_priv *priv);
 120 #ifdef CONFIG_PM_SLEEP
 121 int iwlagn_send_patterns(struct iwl_priv *priv,
 122                          struct cfg80211_wowlan *wowlan);
 123 int iwlagn_suspend(struct iwl_priv *priv,
 124                    struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan);
 125 #endif
 126
 127 /* rx */
 128 int iwlagn_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band);
 129 void iwl_setup_rx_handlers(struct iwl_priv *priv);
 130
 131
 132 /* tx */
 133 int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb);
 134 int iwlagn_tx_agg_start(struct iwl_priv *priv, struct ieee80211_vif *vif,
 135                         struct ieee80211_sta *sta, u16 tid, u16 *ssn);
 136 int iwlagn_tx_agg_oper(struct iwl_priv *priv, struct ieee80211_vif *vif,
 137                         struct ieee80211_sta *sta, u16 tid, u8 buf_size);
 138 int iwlagn_tx_agg_stop(struct iwl_priv *priv, struct ieee80211_vif *vif,
 139                        struct ieee80211_sta *sta, u16 tid);
 140 int iwlagn_rx_reply_compressed_ba(struct iwl_priv *priv,
 141                                    struct iwl_rx_mem_buffer *rxb,
 142                                    struct iwl_device_cmd *cmd);
 143 int iwlagn_rx_reply_tx(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb,
 144                                struct iwl_device_cmd *cmd);
 145
 146 static inline u32 iwl_tx_status_to_mac80211(u32 status)
 147 {
 148         status &= TX_STATUS_MSK;
 149
 150         switch (status) {
 151         case TX_STATUS_SUCCESS:
 152         case TX_STATUS_DIRECT_DONE:
 153                 return IEEE80211_TX_STAT_ACK;
 154         case TX_STATUS_FAIL_DEST_PS:
 155         case TX_STATUS_FAIL_PASSIVE_NO_RX:
 156                 return IEEE80211_TX_STAT_TX_FILTERED;
 157         default:
 158                 return 0;
 159         }
 160 }
 161
 162 static inline bool iwl_is_tx_success(u32 status)
 163 {
 164         status &= TX_STATUS_MSK;
 165         return (status == TX_STATUS_SUCCESS) ||
 166                (status == TX_STATUS_DIRECT_DONE);
 167 }
 168
 169 u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant_idx, u8 valid);
 170
 171 /* scan */
 172 void iwlagn_post_scan(struct iwl_priv *priv);
 173 void iwlagn_disable_roc(struct iwl_priv *priv);
 174
 175 /* bt coex */
 176 void iwlagn_send_advance_bt_config(struct iwl_priv *priv);
 177 int iwlagn_bt_coex_profile_notif(struct iwl_priv *priv,
 178                                   struct iwl_rx_mem_buffer *rxb,
 179                                   struct iwl_device_cmd *cmd);
 180 void iwlagn_bt_rx_handler_setup(struct iwl_priv *priv);
 181 void iwlagn_bt_setup_deferred_work(struct iwl_priv *priv);
 182 void iwlagn_bt_cancel_deferred_work(struct iwl_priv *priv);
 183 void iwlagn_bt_coex_rssi_monitor(struct iwl_priv *priv);
 184 void iwlagn_bt_adjust_rssi_monitor(struct iwl_priv *priv, bool rssi_ena);
 185
 186 #ifdef CONFIG_IWLWIFI_DEBUG
 187 const char *iwl_get_tx_fail_reason(u32 status);
 188 const char *iwl_get_agg_tx_fail_reason(u16 status);
 189 #else
 190 static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
 191 static inline const char *iwl_get_agg_tx_fail_reason(u16 status) { return ""; }
 192 #endif
 193
 194
 195 /* station management */
 196 int iwlagn_manage_ibss_station(struct iwl_priv *priv,
 197                                struct ieee80211_vif *vif, bool add);
 198 #define IWL_STA_DRIVER_ACTIVE BIT(0) /* driver entry is active */
 199 #define IWL_STA_UCODE_ACTIVE  BIT(1) /* ucode entry is active */
 200 #define IWL_STA_UCODE_INPROGRESS  BIT(2) /* ucode entry is in process of
 201                                             being activated */
 202 #define IWL_STA_LOCAL BIT(3) /* station state not directed by mac80211;
 203                                 (this is for the IBSS BSSID stations) */
 204 #define IWL_STA_BCAST BIT(4) /* this station is the special bcast station */
 205
 206
 207 void iwl_restore_stations(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 208 void iwl_clear_ucode_stations(struct iwl_priv *priv,
 209                               struct iwl_rxon_context *ctx);
 210 void iwl_dealloc_bcast_stations(struct iwl_priv *priv);
 211 int iwl_get_free_ucode_key_offset(struct iwl_priv *priv);
 212 int iwl_send_add_sta(struct iwl_priv *priv,
 213                      struct iwl_addsta_cmd *sta, u8 flags);
 214 int iwl_add_station_common(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
 215                            const u8 *addr, bool is_ap,
 216                            struct ieee80211_sta *sta, u8 *sta_id_r);
 217 int iwl_remove_station(struct iwl_priv *priv, const u8 sta_id,
 218                        const u8 *addr);
 219 u8 iwl_prep_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
 220                     const u8 *addr, bool is_ap, struct ieee80211_sta *sta);
 221
 222 void iwl_sta_fill_lq(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
 223                      u8 sta_id, struct iwl_link_quality_cmd *link_cmd);
 224 int iwl_send_lq_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
 225                     struct iwl_link_quality_cmd *lq, u8 flags, bool init);
 226 void iwl_reprogram_ap_sta(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 227 int iwl_add_sta_callback(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb,
 228                                struct iwl_device_cmd *cmd);
 229
 230
 231 /**
 232  * iwl_clear_driver_stations - clear knowledge of all stations from driver
 233  * @priv: iwl priv struct
 234  *
 235  * This is called during iwl_down() to make sure that in the case
 236  * we're coming there from a hardware restart mac80211 will be
 237  * able to reconfigure stations -- if we're getting there in the
 238  * normal down flow then the stations will already be cleared.
 239  */
 240 static inline void iwl_clear_driver_stations(struct iwl_priv *priv)
 241 {
 242         unsigned long flags;
 243         struct iwl_rxon_context *ctx;
 244
 245         spin_lock_irqsave(&priv->shrd->sta_lock, flags);
 246         memset(priv->stations, 0, sizeof(priv->stations));
 247         priv->num_stations = 0;
 248
 249         priv->ucode_key_table = 0;
 250
 251         for_each_context(priv, ctx) {
 252                 /*
 253                  * Remove all key information that is not stored as part
 254                  * of station information since mac80211 may not have had
 255                  * a chance to remove all the keys. When device is
 256                  * reconfigured by mac80211 after an error all keys will
 257                  * be reconfigured.
 258                  */
 259                 memset(ctx->wep_keys, 0, sizeof(ctx->wep_keys));
 260                 ctx->key_mapping_keys = 0;
 261         }
 262
 263         spin_unlock_irqrestore(&priv->shrd->sta_lock, flags);
 264 }
 265
 266 static inline int iwl_sta_id(struct ieee80211_sta *sta)
 267 {
 268         if (WARN_ON(!sta))
 269                 return IWL_INVALID_STATION;
 270
 271         return ((struct iwl_station_priv *)sta->drv_priv)->sta_id;
 272 }
 273
 274 /**
 275  * iwl_sta_id_or_broadcast - return sta_id or broadcast sta
 276  * @priv: iwl priv
 277  * @context: the current context
 278  * @sta: mac80211 station
 279  *
 280  * In certain circumstances mac80211 passes a station pointer
 281  * that may be %NULL, for example during TX or key setup. In
 282  * that case, we need to use the broadcast station, so this
 283  * inline wraps that pattern.
 284  */
 285 static inline int iwl_sta_id_or_broadcast(struct iwl_priv *priv,
 286                                           struct iwl_rxon_context *context,
 287                                           struct ieee80211_sta *sta)
 288 {
 289         int sta_id;
 290
 291         if (!sta)
 292                 return context->bcast_sta_id;
 293
 294         sta_id = iwl_sta_id(sta);
 295
 296         /*
 297          * mac80211 should not be passing a partially
 298          * initialised station!
 299          */
 300         WARN_ON(sta_id == IWL_INVALID_STATION);
 301
 302         return sta_id;
 303 }
 304
 305 int iwlagn_alloc_bcast_station(struct iwl_priv *priv,
 306                                struct iwl_rxon_context *ctx);
 307 int iwlagn_add_bssid_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
 308                              const u8 *addr, u8 *sta_id_r);
 309 int iwl_remove_default_wep_key(struct iwl_priv *priv,
 310                                struct iwl_rxon_context *ctx,
 311                                struct ieee80211_key_conf *key);
 312 int iwl_set_default_wep_key(struct iwl_priv *priv,
 313                             struct iwl_rxon_context *ctx,
 314                             struct ieee80211_key_conf *key);
 315 int iwl_restore_default_wep_keys(struct iwl_priv *priv,
 316                                  struct iwl_rxon_context *ctx);
 317 int iwl_set_dynamic_key(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
 318                         struct ieee80211_key_conf *key,
 319                         struct ieee80211_sta *sta);
 320 int iwl_remove_dynamic_key(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
 321                            struct ieee80211_key_conf *key,
 322                            struct ieee80211_sta *sta);
 323 void iwl_update_tkip_key(struct iwl_priv *priv,
 324                          struct ieee80211_vif *vif,
 325                          struct ieee80211_key_conf *keyconf,
 326                          struct ieee80211_sta *sta, u32 iv32, u16 *phase1key);
 327 int iwl_sta_tx_modify_enable_tid(struct iwl_priv *priv, int sta_id, int tid);
 328 int iwl_sta_rx_agg_start(struct iwl_priv *priv, struct ieee80211_sta *sta,
 329                          int tid, u16 ssn);
 330 int iwl_sta_rx_agg_stop(struct iwl_priv *priv, struct ieee80211_sta *sta,
 331                         int tid);
 332 void iwl_sta_modify_sleep_tx_count(struct iwl_priv *priv, int sta_id, int cnt);
 333 int iwl_update_bcast_station(struct iwl_priv *priv,
 334                              struct iwl_rxon_context *ctx);
 335 int iwl_update_bcast_stations(struct iwl_priv *priv);
 336
 337 /* rate */
 338 static inline u32 iwl_ant_idx_to_flags(u8 ant_idx)
 339 {
 340         return BIT(ant_idx) << RATE_MCS_ANT_POS;
 341 }
 342
 343 static inline u8 iwl_hw_get_rate(__le32 rate_n_flags)
 344 {
 345         return le32_to_cpu(rate_n_flags) & RATE_MCS_RATE_MSK;
 346 }
 347
 348 static inline __le32 iwl_hw_set_rate_n_flags(u8 rate, u32 flags)
 349 {
 350         return cpu_to_le32(flags|(u32)rate);
 351 }
 352
 353 /* eeprom */
 354 void iwl_eeprom_enhanced_txpower(struct iwl_priv *priv);
 355 void iwl_eeprom_get_mac(const struct iwl_shared *shrd, u8 *mac);
 356
 357 extern int iwl_alive_start(struct iwl_priv *priv);
 358 /* svtool */
 359 #ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE
 360 extern int iwlagn_mac_testmode_cmd(struct ieee80211_hw *hw, void *data,
 361                                    int len);
 362 extern int iwlagn_mac_testmode_dump(struct ieee80211_hw *hw,
 363                                     struct sk_buff *skb,
 364                                     struct netlink_callback *cb,
 365                                     void *data, int len);
 366 extern void iwl_testmode_init(struct iwl_priv *priv);
 367 extern void iwl_testmode_cleanup(struct iwl_priv *priv);
 368 #else
 369 static inline
 370 int iwlagn_mac_testmode_cmd(struct ieee80211_hw *hw, void *data, int len)
 371 {
 372         return -ENOSYS;
 373 }
 374 static inline
 375 int iwlagn_mac_testmode_dump(struct ieee80211_hw *hw, struct sk_buff *skb,
 376                       struct netlink_callback *cb,
 377                       void *data, int len)
 378 {
 379         return -ENOSYS;
 380 }
 381 static inline
 382 void iwl_testmode_init(struct iwl_priv *priv)
 383 {
 384 }
 385 static inline
 386 void iwl_testmode_cleanup(struct iwl_priv *priv)
 387 {
 388 }
 389 #endif
 390
 391 #endif /* __iwl_agn_h__ */