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