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 extern struct ieee80211_ops iwlagn_hw_ops;
  69
  70 int iwl_reset_ict(struct iwl_trans *trans);
  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 /* RXON */
  81 int iwlagn_set_pan_params(struct iwl_priv *priv);
  82 int iwlagn_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
  83 void iwlagn_set_rxon_chain(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
  84 int iwlagn_mac_config(struct ieee80211_hw *hw, u32 changed);
  85 void iwlagn_bss_info_changed(struct ieee80211_hw *hw,
  86                              struct ieee80211_vif *vif,
  87                              struct ieee80211_bss_conf *bss_conf,
  88                              u32 changes);
  89 void iwlagn_config_ht40(struct ieee80211_conf *conf,
  90                         struct iwl_rxon_context *ctx);
  91
  92 /* uCode */
  93 int iwlagn_rx_calib_result(struct iwl_priv *priv,
  94                             struct iwl_rx_mem_buffer *rxb,
  95                             struct iwl_device_cmd *cmd);
  96 int iwlagn_send_bt_env(struct iwl_priv *priv, u8 action, u8 type);
  97 void iwlagn_send_prio_tbl(struct iwl_priv *priv);
  98 int iwlagn_run_init_ucode(struct iwl_priv *priv);
  99 int iwlagn_load_ucode_wait_alive(struct iwl_priv *priv,
 100                                  struct fw_img *image,
 101                                  enum iwlagn_ucode_type ucode_type);
 102
 103 /* lib */
 104 int iwlagn_send_tx_power(struct iwl_priv *priv);
 105 void iwlagn_temperature(struct iwl_priv *priv);
 106 u16 iwlagn_eeprom_calib_version(struct iwl_priv *priv);
 107 int iwlagn_txfifo_flush(struct iwl_priv *priv, u16 flush_control);
 108 void iwlagn_dev_txfifo_flush(struct iwl_priv *priv, u16 flush_control);
 109 int iwlagn_send_beacon_cmd(struct iwl_priv *priv);
 110
 111 /* rx */
 112 int iwlagn_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band);
 113 void iwl_setup_rx_handlers(struct iwl_priv *priv);
 114
 115
 116 /* tx */
 117 int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb);
 118 int iwlagn_tx_agg_start(struct iwl_priv *priv, struct ieee80211_vif *vif,
 119                         struct ieee80211_sta *sta, u16 tid, u16 *ssn);
 120 int iwlagn_tx_agg_stop(struct iwl_priv *priv, struct ieee80211_vif *vif,
 121                        struct ieee80211_sta *sta, u16 tid);
 122 int iwlagn_rx_reply_compressed_ba(struct iwl_priv *priv,
 123                                    struct iwl_rx_mem_buffer *rxb,
 124                                    struct iwl_device_cmd *cmd);
 125 int iwlagn_rx_reply_tx(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb,
 126                                struct iwl_device_cmd *cmd);
 127
 128 static inline u32 iwl_tx_status_to_mac80211(u32 status)
 129 {
 130         status &= TX_STATUS_MSK;
 131
 132         switch (status) {
 133         case TX_STATUS_SUCCESS:
 134         case TX_STATUS_DIRECT_DONE:
 135                 return IEEE80211_TX_STAT_ACK;
 136         case TX_STATUS_FAIL_DEST_PS:
 137         case TX_STATUS_FAIL_PASSIVE_NO_RX:
 138                 return IEEE80211_TX_STAT_TX_FILTERED;
 139         default:
 140                 return 0;
 141         }
 142 }
 143
 144 static inline bool iwl_is_tx_success(u32 status)
 145 {
 146         status &= TX_STATUS_MSK;
 147         return (status == TX_STATUS_SUCCESS) ||
 148                (status == TX_STATUS_DIRECT_DONE);
 149 }
 150
 151 u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant_idx, u8 valid);
 152
 153 /* scan */
 154 void iwlagn_post_scan(struct iwl_priv *priv);
 155 void iwlagn_disable_roc(struct iwl_priv *priv);
 156
 157 /* bt coex */
 158 void iwlagn_send_advance_bt_config(struct iwl_priv *priv);
 159 int iwlagn_bt_coex_profile_notif(struct iwl_priv *priv,
 160                                   struct iwl_rx_mem_buffer *rxb,
 161                                   struct iwl_device_cmd *cmd);
 162 void iwlagn_bt_rx_handler_setup(struct iwl_priv *priv);
 163 void iwlagn_bt_setup_deferred_work(struct iwl_priv *priv);
 164 void iwlagn_bt_cancel_deferred_work(struct iwl_priv *priv);
 165 void iwlagn_bt_coex_rssi_monitor(struct iwl_priv *priv);
 166 void iwlagn_bt_adjust_rssi_monitor(struct iwl_priv *priv, bool rssi_ena);
 167
 168 #ifdef CONFIG_IWLWIFI_DEBUG
 169 const char *iwl_get_tx_fail_reason(u32 status);
 170 const char *iwl_get_agg_tx_fail_reason(u16 status);
 171 #else
 172 static inline const char *iwl_get_tx_fail_reason(u32 status) { return ""; }
 173 static inline const char *iwl_get_agg_tx_fail_reason(u16 status) { return ""; }
 174 #endif
 175
 176
 177 /* station management */
 178 int iwlagn_manage_ibss_station(struct iwl_priv *priv,
 179                                struct ieee80211_vif *vif, bool add);
 180 #define IWL_STA_DRIVER_ACTIVE BIT(0) /* driver entry is active */
 181 #define IWL_STA_UCODE_ACTIVE  BIT(1) /* ucode entry is active */
 182 #define IWL_STA_UCODE_INPROGRESS  BIT(2) /* ucode entry is in process of
 183                                             being activated */
 184 #define IWL_STA_LOCAL BIT(3) /* station state not directed by mac80211;
 185                                 (this is for the IBSS BSSID stations) */
 186 #define IWL_STA_BCAST BIT(4) /* this station is the special bcast station */
 187
 188
 189 void iwl_restore_stations(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 190 void iwl_clear_ucode_stations(struct iwl_priv *priv,
 191                               struct iwl_rxon_context *ctx);
 192 void iwl_dealloc_bcast_stations(struct iwl_priv *priv);
 193 int iwl_get_free_ucode_key_offset(struct iwl_priv *priv);
 194 int iwl_send_add_sta(struct iwl_priv *priv,
 195                      struct iwl_addsta_cmd *sta, u8 flags);
 196 int iwl_add_station_common(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
 197                            const u8 *addr, bool is_ap,
 198                            struct ieee80211_sta *sta, u8 *sta_id_r);
 199 int iwl_remove_station(struct iwl_priv *priv, const u8 sta_id,
 200                        const u8 *addr);
 201 int iwlagn_mac_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 202                        struct ieee80211_sta *sta);
 203
 204 u8 iwl_prep_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
 205                     const u8 *addr, bool is_ap, struct ieee80211_sta *sta);
 206
 207 void iwl_sta_fill_lq(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
 208                      u8 sta_id, struct iwl_link_quality_cmd *link_cmd);
 209 int iwl_send_lq_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
 210                     struct iwl_link_quality_cmd *lq, u8 flags, bool init);
 211 void iwl_reprogram_ap_sta(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 212 int iwl_add_sta_callback(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb,
 213                                struct iwl_device_cmd *cmd);
 214
 215
 216 /**
 217  * iwl_clear_driver_stations - clear knowledge of all stations from driver
 218  * @priv: iwl priv struct
 219  *
 220  * This is called during iwl_down() to make sure that in the case
 221  * we're coming there from a hardware restart mac80211 will be
 222  * able to reconfigure stations -- if we're getting there in the
 223  * normal down flow then the stations will already be cleared.
 224  */
 225 static inline void iwl_clear_driver_stations(struct iwl_priv *priv)
 226 {
 227         unsigned long flags;
 228         struct iwl_rxon_context *ctx;
 229
 230         spin_lock_irqsave(&priv->shrd->sta_lock, flags);
 231         memset(priv->stations, 0, sizeof(priv->stations));
 232         priv->num_stations = 0;
 233
 234         priv->ucode_key_table = 0;
 235
 236         for_each_context(priv, ctx) {
 237                 /*
 238                  * Remove all key information that is not stored as part
 239                  * of station information since mac80211 may not have had
 240                  * a chance to remove all the keys. When device is
 241                  * reconfigured by mac80211 after an error all keys will
 242                  * be reconfigured.
 243                  */
 244                 memset(ctx->wep_keys, 0, sizeof(ctx->wep_keys));
 245                 ctx->key_mapping_keys = 0;
 246         }
 247
 248         spin_unlock_irqrestore(&priv->shrd->sta_lock, flags);
 249 }
 250
 251 static inline int iwl_sta_id(struct ieee80211_sta *sta)
 252 {
 253         if (WARN_ON(!sta))
 254                 return IWL_INVALID_STATION;
 255
 256         return ((struct iwl_station_priv *)sta->drv_priv)->sta_id;
 257 }
 258
 259 /**
 260  * iwl_sta_id_or_broadcast - return sta_id or broadcast sta
 261  * @priv: iwl priv
 262  * @context: the current context
 263  * @sta: mac80211 station
 264  *
 265  * In certain circumstances mac80211 passes a station pointer
 266  * that may be %NULL, for example during TX or key setup. In
 267  * that case, we need to use the broadcast station, so this
 268  * inline wraps that pattern.
 269  */
 270 static inline int iwl_sta_id_or_broadcast(struct iwl_priv *priv,
 271                                           struct iwl_rxon_context *context,
 272                                           struct ieee80211_sta *sta)
 273 {
 274         int sta_id;
 275
 276         if (!sta)
 277                 return context->bcast_sta_id;
 278
 279         sta_id = iwl_sta_id(sta);
 280
 281         /*
 282          * mac80211 should not be passing a partially
 283          * initialised station!
 284          */
 285         WARN_ON(sta_id == IWL_INVALID_STATION);
 286
 287         return sta_id;
 288 }
 289
 290 int iwlagn_alloc_bcast_station(struct iwl_priv *priv,
 291                                struct iwl_rxon_context *ctx);
 292 int iwlagn_add_bssid_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
 293                              const u8 *addr, u8 *sta_id_r);
 294 int iwl_remove_default_wep_key(struct iwl_priv *priv,
 295                                struct iwl_rxon_context *ctx,
 296                                struct ieee80211_key_conf *key);
 297 int iwl_set_default_wep_key(struct iwl_priv *priv,
 298                             struct iwl_rxon_context *ctx,
 299                             struct ieee80211_key_conf *key);
 300 int iwl_restore_default_wep_keys(struct iwl_priv *priv,
 301                                  struct iwl_rxon_context *ctx);
 302 int iwl_set_dynamic_key(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
 303                         struct ieee80211_key_conf *key,
 304                         struct ieee80211_sta *sta);
 305 int iwl_remove_dynamic_key(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
 306                            struct ieee80211_key_conf *key,
 307                            struct ieee80211_sta *sta);
 308 void iwl_update_tkip_key(struct iwl_priv *priv,
 309                          struct ieee80211_vif *vif,
 310                          struct ieee80211_key_conf *keyconf,
 311                          struct ieee80211_sta *sta, u32 iv32, u16 *phase1key);
 312 int iwl_sta_tx_modify_enable_tid(struct iwl_priv *priv, int sta_id, int tid);
 313 int iwl_sta_rx_agg_start(struct iwl_priv *priv, struct ieee80211_sta *sta,
 314                          int tid, u16 ssn);
 315 int iwl_sta_rx_agg_stop(struct iwl_priv *priv, struct ieee80211_sta *sta,
 316                         int tid);
 317 void iwl_sta_modify_sleep_tx_count(struct iwl_priv *priv, int sta_id, int cnt);
 318 int iwl_update_bcast_station(struct iwl_priv *priv,
 319                              struct iwl_rxon_context *ctx);
 320 int iwl_update_bcast_stations(struct iwl_priv *priv);
 321 void iwlagn_mac_sta_notify(struct ieee80211_hw *hw,
 322                            struct ieee80211_vif *vif,
 323                            enum sta_notify_cmd cmd,
 324                            struct ieee80211_sta *sta);
 325
 326 /* rate */
 327 static inline u32 iwl_ant_idx_to_flags(u8 ant_idx)
 328 {
 329         return BIT(ant_idx) << RATE_MCS_ANT_POS;
 330 }
 331
 332 static inline u8 iwl_hw_get_rate(__le32 rate_n_flags)
 333 {
 334         return le32_to_cpu(rate_n_flags) & RATE_MCS_RATE_MSK;
 335 }
 336
 337 static inline __le32 iwl_hw_set_rate_n_flags(u8 rate, u32 flags)
 338 {
 339         return cpu_to_le32(flags|(u32)rate);
 340 }
 341
 342 /* eeprom */
 343 void iwl_eeprom_enhanced_txpower(struct iwl_priv *priv);
 344 void iwl_eeprom_get_mac(const struct iwl_priv *priv, u8 *mac);
 345
 346 /* notification wait support */
 347 void __acquires(wait_entry)
 348 iwlagn_init_notification_wait(struct iwl_priv *priv,
 349                               struct iwl_notification_wait *wait_entry,
 350                               u8 cmd,
 351                               void (*fn)(struct iwl_priv *priv,
 352                                          struct iwl_rx_packet *pkt,
 353                                          void *data),
 354                               void *fn_data);
 355 int __must_check __releases(wait_entry)
 356 iwlagn_wait_notification(struct iwl_priv *priv,
 357                          struct iwl_notification_wait *wait_entry,
 358                          unsigned long timeout);
 359 void __releases(wait_entry)
 360 iwlagn_remove_notification(struct iwl_priv *priv,
 361                            struct iwl_notification_wait *wait_entry);
 362 extern int iwlagn_init_alive_start(struct iwl_priv *priv);
 363 extern int iwl_alive_start(struct iwl_priv *priv);
 364 /* svtool */
 365 #ifdef CONFIG_IWLWIFI_DEVICE_SVTOOL
 366 extern int iwlagn_mac_testmode_cmd(struct ieee80211_hw *hw, void *data,
 367                                    int len);
 368 extern int iwlagn_mac_testmode_dump(struct ieee80211_hw *hw,
 369                                     struct sk_buff *skb,
 370                                     struct netlink_callback *cb,
 371                                     void *data, int len);
 372 extern void iwl_testmode_init(struct iwl_priv *priv);
 373 extern void iwl_testmode_cleanup(struct iwl_priv *priv);
 374 #else
 375 static inline
 376 int iwlagn_mac_testmode_cmd(struct ieee80211_hw *hw, void *data, int len)
 377 {
 378         return -ENOSYS;
 379 }
 380 static inline
 381 int iwlagn_mac_testmode_dump(struct ieee80211_hw *hw, struct sk_buff *skb,
 382                       struct netlink_callback *cb,
 383                       void *data, int len)
 384 {
 385         return -ENOSYS;
 386 }
 387 static inline
 388 void iwl_testmode_init(struct iwl_priv *priv)
 389 {
 390 }
 391 static inline
 392 void iwl_testmode_cleanup(struct iwl_priv *priv)
 393 {
 394 }
 395 #endif
 396
 397 #endif /* __iwl_agn_h__ */