drivers/net/wireless/iwlwifi/iwl-core.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 - 2009 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 - 2009 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_core_h__
  64 #define __iwl_core_h__
  65
  66 /************************
  67  * forward declarations *
  68  ************************/
  69 struct iwl_host_cmd;
  70 struct iwl_cmd;
  71
  72
  73 #define IWLWIFI_VERSION "1.3.27k"
  74 #define DRV_COPYRIGHT   "Copyright(c) 2003-2009 Intel Corporation"
  75 #define DRV_AUTHOR     "<ilw@linux.intel.com>"
  76
  77 #define IWL_PCI_DEVICE(dev, subdev, cfg) \
  78         .vendor = PCI_VENDOR_ID_INTEL,  .device = (dev), \
  79         .subvendor = PCI_ANY_ID, .subdevice = (subdev), \
  80         .driver_data = (kernel_ulong_t)&(cfg)
  81
  82 #define IWL_SKU_G       0x1
  83 #define IWL_SKU_A       0x2
  84 #define IWL_SKU_N       0x8
  85
  86 #define IWL_CMD(x) case x: return #x
  87
  88 struct iwl_hcmd_ops {
  89         int (*rxon_assoc)(struct iwl_priv *priv);
  90         int (*commit_rxon)(struct iwl_priv *priv);
  91         void (*set_rxon_chain)(struct iwl_priv *priv);
  92 };
  93
  94 struct iwl_hcmd_utils_ops {
  95         u16 (*get_hcmd_size)(u8 cmd_id, u16 len);
  96         u16 (*build_addsta_hcmd)(const struct iwl_addsta_cmd *cmd, u8 *data);
  97         void (*gain_computation)(struct iwl_priv *priv,
  98                         u32 *average_noise,
  99                         u16 min_average_noise_antennat_i,
 100                         u32 min_average_noise);
 101         void (*chain_noise_reset)(struct iwl_priv *priv);
 102         void (*rts_tx_cmd_flag)(struct ieee80211_tx_info *info,
 103                         __le32 *tx_flags);
 104         int  (*calc_rssi)(struct iwl_priv *priv,
 105                           struct iwl_rx_phy_res *rx_resp);
 106 };
 107
 108 struct iwl_apm_ops {
 109         int (*init)(struct iwl_priv *priv);
 110         int (*reset)(struct iwl_priv *priv);
 111         void (*stop)(struct iwl_priv *priv);
 112         void (*config)(struct iwl_priv *priv);
 113         int (*set_pwr_src)(struct iwl_priv *priv, enum iwl_pwr_src src);
 114 };
 115
 116 struct iwl_temp_ops {
 117         void (*temperature)(struct iwl_priv *priv);
 118         void (*set_ct_kill)(struct iwl_priv *priv);
 119 };
 120
 121 struct iwl_ucode_ops {
 122         u32 (*get_header_size)(u32);
 123         u32 (*get_build)(const struct iwl_ucode_header *, u32);
 124         u32 (*get_inst_size)(const struct iwl_ucode_header *, u32);
 125         u32 (*get_data_size)(const struct iwl_ucode_header *, u32);
 126         u32 (*get_init_size)(const struct iwl_ucode_header *, u32);
 127         u32 (*get_init_data_size)(const struct iwl_ucode_header *, u32);
 128         u32 (*get_boot_size)(const struct iwl_ucode_header *, u32);
 129         u8 * (*get_data)(const struct iwl_ucode_header *, u32);
 130 };
 131
 132 struct iwl_lib_ops {
 133         /* set hw dependent parameters */
 134         int (*set_hw_params)(struct iwl_priv *priv);
 135         /* Handling TX */
 136         void (*txq_update_byte_cnt_tbl)(struct iwl_priv *priv,
 137                                         struct iwl_tx_queue *txq,
 138                                         u16 byte_cnt);
 139         void (*txq_inval_byte_cnt_tbl)(struct iwl_priv *priv,
 140                                        struct iwl_tx_queue *txq);
 141         void (*txq_set_sched)(struct iwl_priv *priv, u32 mask);
 142         int (*txq_attach_buf_to_tfd)(struct iwl_priv *priv,
 143                                      struct iwl_tx_queue *txq,
 144                                      dma_addr_t addr,
 145                                      u16 len, u8 reset, u8 pad);
 146         void (*txq_free_tfd)(struct iwl_priv *priv,
 147                              struct iwl_tx_queue *txq);
 148         int (*txq_init)(struct iwl_priv *priv,
 149                         struct iwl_tx_queue *txq);
 150         /* aggregations */
 151         int (*txq_agg_enable)(struct iwl_priv *priv, int txq_id, int tx_fifo,
 152                               int sta_id, int tid, u16 ssn_idx);
 153         int (*txq_agg_disable)(struct iwl_priv *priv, u16 txq_id, u16 ssn_idx,
 154                                u8 tx_fifo);
 155         /* setup Rx handler */
 156         void (*rx_handler_setup)(struct iwl_priv *priv);
 157         /* setup deferred work */
 158         void (*setup_deferred_work)(struct iwl_priv *priv);
 159         /* cancel deferred work */
 160         void (*cancel_deferred_work)(struct iwl_priv *priv);
 161         /* alive notification after init uCode load */
 162         void (*init_alive_start)(struct iwl_priv *priv);
 163         /* alive notification */
 164         int (*alive_notify)(struct iwl_priv *priv);
 165         /* check validity of rtc data address */
 166         int (*is_valid_rtc_data_addr)(u32 addr);
 167         /* 1st ucode load */
 168         int (*load_ucode)(struct iwl_priv *priv);
 169         /* power management */
 170         struct iwl_apm_ops apm_ops;
 171
 172         /* power */
 173         int (*send_tx_power) (struct iwl_priv *priv);
 174         void (*update_chain_flags)(struct iwl_priv *priv);
 175         void (*post_associate) (struct iwl_priv *priv);
 176         void (*config_ap) (struct iwl_priv *priv);
 177         irqreturn_t (*isr) (int irq, void *data);
 178
 179         /* eeprom operations (as defined in iwl-eeprom.h) */
 180         struct iwl_eeprom_ops eeprom_ops;
 181
 182         /* temperature */
 183         struct iwl_temp_ops temp_ops;
 184 };
 185
 186 struct iwl_ops {
 187         const struct iwl_ucode_ops *ucode;
 188         const struct iwl_lib_ops *lib;
 189         const struct iwl_hcmd_ops *hcmd;
 190         const struct iwl_hcmd_utils_ops *utils;
 191 };
 192
 193 struct iwl_mod_params {
 194         int sw_crypto;          /* def: 0 = using hardware encryption */
 195         int disable_hw_scan;    /* def: 0 = use h/w scan */
 196         int num_of_queues;      /* def: HW dependent */
 197         int num_of_ampdu_queues;/* def: HW dependent */
 198         int disable_11n;        /* def: 0 = 11n capabilities enabled */
 199         int amsdu_size_8K;      /* def: 1 = enable 8K amsdu size */
 200         int antenna;            /* def: 0 = both antennas (use diversity) */
 201         int restart_fw;         /* def: 1 = restart firmware */
 202 };
 203
 204 /**
 205  * struct iwl_cfg
 206  * @fw_name_pre: Firmware filename prefix. The api version and extension
 207  *      (.ucode) will be added to filename before loading from disk. The
 208  *      filename is constructed as fw_name_pre<api>.ucode.
 209  * @ucode_api_max: Highest version of uCode API supported by driver.
 210  * @ucode_api_min: Lowest version of uCode API supported by driver.
 211  * @pa_type: used by 6000 series only to identify the type of Power Amplifier
 212  *
 213  * We enable the driver to be backward compatible wrt API version. The
 214  * driver specifies which APIs it supports (with @ucode_api_max being the
 215  * highest and @ucode_api_min the lowest). Firmware will only be loaded if
 216  * it has a supported API version. The firmware's API version will be
 217  * stored in @iwl_priv, enabling the driver to make runtime changes based
 218  * on firmware version used.
 219  *
 220  * For example,
 221  * if (IWL_UCODE_API(priv->ucode_ver) >= 2) {
 222  *      Driver interacts with Firmware API version >= 2.
 223  * } else {
 224  *      Driver interacts with Firmware API version 1.
 225  * }
 226  *
 227  * The ideal usage of this infrastructure is to treat a new ucode API
 228  * release as a new hardware revision. That is, through utilizing the
 229  * iwl_hcmd_utils_ops etc. we accommodate different command structures
 230  * and flows between hardware versions (4965/5000) as well as their API
 231  * versions.
 232  *
 233  */
 234 struct iwl_cfg {
 235         const char *name;
 236         const char *fw_name_pre;
 237         const unsigned int ucode_api_max;
 238         const unsigned int ucode_api_min;
 239         unsigned int sku;
 240         int eeprom_size;
 241         u16  eeprom_ver;
 242         u16  eeprom_calib_ver;
 243         const struct iwl_ops *ops;
 244         const struct iwl_mod_params *mod_params;
 245         u8   valid_tx_ant;
 246         u8   valid_rx_ant;
 247         bool need_pll_cfg;
 248         bool use_isr_legacy;
 249         enum iwl_pa_type pa_type;
 250 };
 251
 252 /***************************
 253  *   L i b                 *
 254  ***************************/
 255
 256 struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg,
 257                 struct ieee80211_ops *hw_ops);
 258 void iwl_hw_detect(struct iwl_priv *priv);
 259 void iwl_reset_qos(struct iwl_priv *priv);
 260 void iwl_activate_qos(struct iwl_priv *priv, u8 force);
 261 int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
 262                     const struct ieee80211_tx_queue_params *params);
 263 void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt);
 264 int iwl_check_rxon_cmd(struct iwl_priv *priv);
 265 int iwl_full_rxon_required(struct iwl_priv *priv);
 266 void iwl_set_rxon_chain(struct iwl_priv *priv);
 267 int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch);
 268 void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_info *ht_info);
 269 u8 iwl_is_ht40_tx_allowed(struct iwl_priv *priv,
 270                          struct ieee80211_sta_ht_cap *sta_ht_inf);
 271 void iwl_set_flags_for_band(struct iwl_priv *priv, enum ieee80211_band band);
 272 void iwl_connection_init_rx_config(struct iwl_priv *priv, int mode);
 273 int iwl_set_decrypted_flag(struct iwl_priv *priv,
 274                            struct ieee80211_hdr *hdr,
 275                            u32 decrypt_res,
 276                            struct ieee80211_rx_status *stats);
 277 void iwl_irq_handle_error(struct iwl_priv *priv);
 278 void iwl_configure_filter(struct ieee80211_hw *hw,
 279                           unsigned int changed_flags,
 280                           unsigned int *total_flags,
 281                           int mc_count, struct dev_addr_list *mc_list);
 282 int iwl_hw_nic_init(struct iwl_priv *priv);
 283 int iwl_setup_mac(struct iwl_priv *priv);
 284 int iwl_set_hw_params(struct iwl_priv *priv);
 285 int iwl_init_drv(struct iwl_priv *priv);
 286 void iwl_uninit_drv(struct iwl_priv *priv);
 287 bool iwl_is_monitor_mode(struct iwl_priv *priv);
 288 void iwl_post_associate(struct iwl_priv *priv);
 289 void iwl_bss_info_changed(struct ieee80211_hw *hw,
 290                                      struct ieee80211_vif *vif,
 291                                      struct ieee80211_bss_conf *bss_conf,
 292                                      u32 changes);
 293 int iwl_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb);
 294 int iwl_commit_rxon(struct iwl_priv *priv);
 295 int iwl_set_mode(struct iwl_priv *priv, int mode);
 296 int iwl_mac_add_interface(struct ieee80211_hw *hw,
 297                                  struct ieee80211_if_init_conf *conf);
 298 void iwl_mac_remove_interface(struct ieee80211_hw *hw,
 299                                  struct ieee80211_if_init_conf *conf);
 300 int iwl_mac_config(struct ieee80211_hw *hw, u32 changed);
 301 void iwl_config_ap(struct iwl_priv *priv);
 302 int iwl_mac_get_tx_stats(struct ieee80211_hw *hw,
 303                          struct ieee80211_tx_queue_stats *stats);
 304 void iwl_mac_reset_tsf(struct ieee80211_hw *hw);
 305 #ifdef CONFIG_IWLWIFI_DEBUGFS
 306 int iwl_alloc_traffic_mem(struct iwl_priv *priv);
 307 void iwl_free_traffic_mem(struct iwl_priv *priv);
 308 void iwl_reset_traffic_log(struct iwl_priv *priv);
 309 void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
 310                                 u16 length, struct ieee80211_hdr *header);
 311 void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
 312                                 u16 length, struct ieee80211_hdr *header);
 313 const char *get_mgmt_string(int cmd);
 314 const char *get_ctrl_string(int cmd);
 315 void iwl_clear_tx_stats(struct iwl_priv *priv);
 316 void iwl_clear_rx_stats(struct iwl_priv *priv);
 317 void iwl_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc,
 318                       u16 len);
 319 #else
 320 static inline int iwl_alloc_traffic_mem(struct iwl_priv *priv)
 321 {
 322         return 0;
 323 }
 324 static inline void iwl_free_traffic_mem(struct iwl_priv *priv)
 325 {
 326 }
 327 static inline void iwl_reset_traffic_log(struct iwl_priv *priv)
 328 {
 329 }
 330 static inline void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
 331                       u16 length, struct ieee80211_hdr *header)
 332 {
 333 }
 334 static inline void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
 335                       u16 length, struct ieee80211_hdr *header)
 336 {
 337 }
 338 static inline void iwl_update_stats(struct iwl_priv *priv, bool is_tx,
 339                                     __le16 fc, u16 len)
 340 {
 341         struct traffic_stats    *stats;
 342
 343         if (is_tx)
 344                 stats = &priv->tx_stats;
 345         else
 346                 stats = &priv->rx_stats;
 347
 348         if (ieee80211_is_data(fc)) {
 349                 /* data */
 350                 stats->data_bytes += len;
 351         }
 352 }
 353 #endif
 354 /*****************************************************
 355  * RX handlers.
 356  * **************************************************/
 357 void iwl_rx_pm_sleep_notif(struct iwl_priv *priv,
 358                            struct iwl_rx_mem_buffer *rxb);
 359 void iwl_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
 360                                       struct iwl_rx_mem_buffer *rxb);
 361 void iwl_rx_reply_error(struct iwl_priv *priv,
 362                         struct iwl_rx_mem_buffer *rxb);
 363
 364 /*****************************************************
 365 * RX
 366 ******************************************************/
 367 void iwl_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
 368 void iwl_cmd_queue_free(struct iwl_priv *priv);
 369 int iwl_rx_queue_alloc(struct iwl_priv *priv);
 370 void iwl_rx_handle(struct iwl_priv *priv);
 371 int iwl_rx_queue_update_write_ptr(struct iwl_priv *priv,
 372                                   struct iwl_rx_queue *q);
 373 void iwl_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
 374 void iwl_rx_replenish(struct iwl_priv *priv);
 375 void iwl_rx_replenish_now(struct iwl_priv *priv);
 376 int iwl_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
 377 int iwl_rx_queue_restock(struct iwl_priv *priv);
 378 int iwl_rx_queue_space(const struct iwl_rx_queue *q);
 379 void iwl_rx_allocate(struct iwl_priv *priv, gfp_t priority);
 380 void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
 381 int iwl_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index);
 382 /* Handlers */
 383 void iwl_rx_missed_beacon_notif(struct iwl_priv *priv,
 384                                struct iwl_rx_mem_buffer *rxb);
 385 void iwl_rx_statistics(struct iwl_priv *priv,
 386                               struct iwl_rx_mem_buffer *rxb);
 387 void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
 388
 389 /* TX helpers */
 390
 391 /*****************************************************
 392 * TX
 393 ******************************************************/
 394 int iwl_txq_ctx_reset(struct iwl_priv *priv);
 395 void iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq);
 396 int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv,
 397                                  struct iwl_tx_queue *txq,
 398                                  dma_addr_t addr, u16 len, u8 reset, u8 pad);
 399 int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb);
 400 void iwl_hw_txq_ctx_free(struct iwl_priv *priv);
 401 int iwl_hw_tx_queue_init(struct iwl_priv *priv,
 402                          struct iwl_tx_queue *txq);
 403 int iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq);
 404 int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
 405                       int slots_num, u32 txq_id);
 406 void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id);
 407 int iwl_tx_agg_start(struct iwl_priv *priv, const u8 *ra, u16 tid, u16 *ssn);
 408 int iwl_tx_agg_stop(struct iwl_priv *priv , const u8 *ra, u16 tid);
 409 int iwl_txq_check_empty(struct iwl_priv *priv, int sta_id, u8 tid, int txq_id);
 410 /*****************************************************
 411  * TX power
 412  ****************************************************/
 413 int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force);
 414
 415 /*******************************************************************************
 416  * Rate
 417  ******************************************************************************/
 418
 419 void iwl_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags,
 420                               struct ieee80211_tx_info *info);
 421 int iwl_hwrate_to_plcp_idx(u32 rate_n_flags);
 422
 423 u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv);
 424
 425 u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant_idx);
 426
 427 static inline u32 iwl_ant_idx_to_flags(u8 ant_idx)
 428 {
 429         return BIT(ant_idx) << RATE_MCS_ANT_POS;
 430 }
 431
 432 static inline u8 iwl_hw_get_rate(__le32 rate_n_flags)
 433 {
 434         return le32_to_cpu(rate_n_flags) & 0xFF;
 435 }
 436 static inline u32 iwl_hw_get_rate_n_flags(__le32 rate_n_flags)
 437 {
 438         return le32_to_cpu(rate_n_flags) & 0x1FFFF;
 439 }
 440 static inline __le32 iwl_hw_set_rate_n_flags(u8 rate, u32 flags)
 441 {
 442         return cpu_to_le32(flags|(u32)rate);
 443 }
 444
 445 /*******************************************************************************
 446  * Scanning
 447  ******************************************************************************/
 448 void iwl_init_scan_params(struct iwl_priv *priv);
 449 int iwl_scan_cancel(struct iwl_priv *priv);
 450 int iwl_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms);
 451 int iwl_mac_hw_scan(struct ieee80211_hw *hw, struct cfg80211_scan_request *req);
 452 u16 iwl_fill_probe_req(struct iwl_priv *priv, struct ieee80211_mgmt *frame,
 453                        const u8 *ie, int ie_len, int left);
 454 void iwl_setup_rx_scan_handlers(struct iwl_priv *priv);
 455 u16 iwl_get_active_dwell_time(struct iwl_priv *priv,
 456                               enum ieee80211_band band,
 457                               u8 n_probes);
 458 u16 iwl_get_passive_dwell_time(struct iwl_priv *priv,
 459                                enum ieee80211_band band);
 460 void iwl_bg_scan_check(struct work_struct *data);
 461 void iwl_bg_abort_scan(struct work_struct *work);
 462 void iwl_bg_scan_completed(struct work_struct *work);
 463 void iwl_setup_scan_deferred_work(struct iwl_priv *priv);
 464
 465 /* For faster active scanning, scan will move to the next channel if fewer than
 466  * PLCP_QUIET_THRESH packets are heard on this channel within
 467  * ACTIVE_QUIET_TIME after sending probe request.  This shortens the dwell
 468  * time if it's a quiet channel (nothing responded to our probe, and there's
 469  * no other traffic).
 470  * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
 471 #define IWL_ACTIVE_QUIET_TIME       cpu_to_le16(10)  /* msec */
 472 #define IWL_PLCP_QUIET_THRESH       cpu_to_le16(1)  /* packets */
 473
 474
 475 /*******************************************************************************
 476  * Calibrations - implemented in iwl-calib.c
 477  ******************************************************************************/
 478 int iwl_send_calib_results(struct iwl_priv *priv);
 479 int iwl_calib_set(struct iwl_calib_result *res, const u8 *buf, int len);
 480 void iwl_calib_free_results(struct iwl_priv *priv);
 481
 482 /*******************************************************************************
 483  * Spectrum Measureemtns in  iwl-spectrum.c
 484  ******************************************************************************/
 485 #ifdef CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT
 486 void iwl_setup_spectrum_handlers(struct iwl_priv *priv);
 487 #else
 488 static inline void iwl_setup_spectrum_handlers(struct iwl_priv *priv) {}
 489 #endif
 490 /*****************************************************
 491  *   S e n d i n g     H o s t     C o m m a n d s   *
 492  *****************************************************/
 493
 494 const char *get_cmd_string(u8 cmd);
 495 int __must_check iwl_send_cmd_sync(struct iwl_priv *priv,
 496                                    struct iwl_host_cmd *cmd);
 497 int iwl_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 498 int __must_check iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id,
 499                                   u16 len, const void *data);
 500 int iwl_send_cmd_pdu_async(struct iwl_priv *priv, u8 id, u16 len,
 501                            const void *data,
 502                            void (*callback)(struct iwl_priv *priv,
 503                                             struct iwl_device_cmd *cmd,
 504                                             struct sk_buff *skb));
 505
 506 int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 507
 508 int iwl_send_card_state(struct iwl_priv *priv, u32 flags,
 509                         u8 meta_flag);
 510
 511 /*****************************************************
 512  * PCI                                               *
 513  *****************************************************/
 514 irqreturn_t iwl_isr_legacy(int irq, void *data);
 515 int iwl_reset_ict(struct iwl_priv *priv);
 516 void iwl_disable_ict(struct iwl_priv *priv);
 517 int iwl_alloc_isr_ict(struct iwl_priv *priv);
 518 void iwl_free_isr_ict(struct iwl_priv *priv);
 519 irqreturn_t iwl_isr_ict(int irq, void *data);
 520
 521 static inline u16 iwl_pcie_link_ctl(struct iwl_priv *priv)
 522 {
 523         int pos;
 524         u16 pci_lnk_ctl;
 525         pos = pci_find_capability(priv->pci_dev, PCI_CAP_ID_EXP);
 526         pci_read_config_word(priv->pci_dev, pos + PCI_EXP_LNKCTL, &pci_lnk_ctl);
 527         return pci_lnk_ctl;
 528 }
 529 #ifdef CONFIG_PM
 530 int iwl_pci_suspend(struct pci_dev *pdev, pm_message_t state);
 531 int iwl_pci_resume(struct pci_dev *pdev);
 532 #endif /* CONFIG_PM */
 533
 534 /*****************************************************
 535 *  Error Handling Debugging
 536 ******************************************************/
 537 void iwl_dump_nic_event_log(struct iwl_priv *priv);
 538 void iwl_clear_isr_stats(struct iwl_priv *priv);
 539
 540 /*****************************************************
 541 *  GEOS
 542 ******************************************************/
 543 int iwlcore_init_geos(struct iwl_priv *priv);
 544 void iwlcore_free_geos(struct iwl_priv *priv);
 545
 546 /*************** DRIVER STATUS FUNCTIONS   *****/
 547
 548 #define STATUS_HCMD_ACTIVE      0       /* host command in progress */
 549 #define STATUS_HCMD_SYNC_ACTIVE 1       /* sync host command in progress */
 550 #define STATUS_INT_ENABLED      2
 551 #define STATUS_RF_KILL_HW       3
 552 #define STATUS_INIT             5
 553 #define STATUS_ALIVE            6
 554 #define STATUS_READY            7
 555 #define STATUS_TEMPERATURE      8
 556 #define STATUS_GEO_CONFIGURED   9
 557 #define STATUS_EXIT_PENDING     10
 558 #define STATUS_STATISTICS       12
 559 #define STATUS_SCANNING         13
 560 #define STATUS_SCAN_ABORTING    14
 561 #define STATUS_SCAN_HW          15
 562 #define STATUS_POWER_PMI        16
 563 #define STATUS_FW_ERROR         17
 564 #define STATUS_MODE_PENDING     18
 565
 566
 567 static inline int iwl_is_ready(struct iwl_priv *priv)
 568 {
 569         /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
 570          * set but EXIT_PENDING is not */
 571         return test_bit(STATUS_READY, &priv->status) &&
 572                test_bit(STATUS_GEO_CONFIGURED, &priv->status) &&
 573                !test_bit(STATUS_EXIT_PENDING, &priv->status);
 574 }
 575
 576 static inline int iwl_is_alive(struct iwl_priv *priv)
 577 {
 578         return test_bit(STATUS_ALIVE, &priv->status);
 579 }
 580
 581 static inline int iwl_is_init(struct iwl_priv *priv)
 582 {
 583         return test_bit(STATUS_INIT, &priv->status);
 584 }
 585
 586 static inline int iwl_is_rfkill_hw(struct iwl_priv *priv)
 587 {
 588         return test_bit(STATUS_RF_KILL_HW, &priv->status);
 589 }
 590
 591 static inline int iwl_is_rfkill(struct iwl_priv *priv)
 592 {
 593         return iwl_is_rfkill_hw(priv);
 594 }
 595
 596 static inline int iwl_is_ready_rf(struct iwl_priv *priv)
 597 {
 598
 599         if (iwl_is_rfkill(priv))
 600                 return 0;
 601
 602         return iwl_is_ready(priv);
 603 }
 604
 605 extern void iwl_rf_kill_ct_config(struct iwl_priv *priv);
 606 extern int iwl_send_bt_config(struct iwl_priv *priv);
 607 extern int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags);
 608 extern int iwl_verify_ucode(struct iwl_priv *priv);
 609 extern int iwl_send_lq_cmd(struct iwl_priv *priv,
 610                 struct iwl_link_quality_cmd *lq, u8 flags);
 611 extern void iwl_rx_reply_rx(struct iwl_priv *priv,
 612                 struct iwl_rx_mem_buffer *rxb);
 613 extern void iwl_rx_reply_rx_phy(struct iwl_priv *priv,
 614                                     struct iwl_rx_mem_buffer *rxb);
 615 void iwl_rx_reply_compressed_ba(struct iwl_priv *priv,
 616                                            struct iwl_rx_mem_buffer *rxb);
 617
 618 void iwl_setup_rxon_timing(struct iwl_priv *priv);
 619 static inline int iwl_send_rxon_assoc(struct iwl_priv *priv)
 620 {
 621         return priv->cfg->ops->hcmd->rxon_assoc(priv);
 622 }
 623 static inline int iwlcore_commit_rxon(struct iwl_priv *priv)
 624 {
 625         return priv->cfg->ops->hcmd->commit_rxon(priv);
 626 }
 627 static inline void iwlcore_config_ap(struct iwl_priv *priv)
 628 {
 629         priv->cfg->ops->lib->config_ap(priv);
 630 }
 631 static inline const struct ieee80211_supported_band *iwl_get_hw_mode(
 632                         struct iwl_priv *priv, enum ieee80211_band band)
 633 {
 634         return priv->hw->wiphy->bands[band];
 635 }
 636
 637 #endif /* __iwl_core_h__ */