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