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         int (*set_tx_ant)(struct iwl_priv *priv, u8 valid_tx_ant);
  93 };
  94
  95 struct iwl_hcmd_utils_ops {
  96         u16 (*get_hcmd_size)(u8 cmd_id, u16 len);
  97         u16 (*build_addsta_hcmd)(const struct iwl_addsta_cmd *cmd, u8 *data);
  98         void (*gain_computation)(struct iwl_priv *priv,
  99                         u32 *average_noise,
 100                         u16 min_average_noise_antennat_i,
 101                         u32 min_average_noise,
 102                         u8 default_chain);
 103         void (*chain_noise_reset)(struct iwl_priv *priv);
 104         void (*rts_tx_cmd_flag)(struct ieee80211_tx_info *info,
 105                         __le32 *tx_flags);
 106         int  (*calc_rssi)(struct iwl_priv *priv,
 107                           struct iwl_rx_phy_res *rx_resp);
 108 };
 109
 110 struct iwl_apm_ops {
 111         int (*init)(struct iwl_priv *priv);
 112         void (*stop)(struct iwl_priv *priv);
 113         void (*config)(struct iwl_priv *priv);
 114         int (*set_pwr_src)(struct iwl_priv *priv, enum iwl_pwr_src src);
 115 };
 116
 117 struct iwl_temp_ops {
 118         void (*temperature)(struct iwl_priv *priv);
 119         void (*set_ct_kill)(struct iwl_priv *priv);
 120 };
 121
 122 struct iwl_ucode_ops {
 123         u32 (*get_header_size)(u32);
 124         u32 (*get_build)(const struct iwl_ucode_header *, u32);
 125         u32 (*get_inst_size)(const struct iwl_ucode_header *, u32);
 126         u32 (*get_data_size)(const struct iwl_ucode_header *, u32);
 127         u32 (*get_init_size)(const struct iwl_ucode_header *, u32);
 128         u32 (*get_init_data_size)(const struct iwl_ucode_header *, u32);
 129         u32 (*get_boot_size)(const struct iwl_ucode_header *, u32);
 130         u8 * (*get_data)(const struct iwl_ucode_header *, u32);
 131 };
 132
 133 struct iwl_lib_ops {
 134         /* set hw dependent parameters */
 135         int (*set_hw_params)(struct iwl_priv *priv);
 136         /* Handling TX */
 137         void (*txq_update_byte_cnt_tbl)(struct iwl_priv *priv,
 138                                         struct iwl_tx_queue *txq,
 139                                         u16 byte_cnt);
 140         void (*txq_inval_byte_cnt_tbl)(struct iwl_priv *priv,
 141                                        struct iwl_tx_queue *txq);
 142         void (*txq_set_sched)(struct iwl_priv *priv, u32 mask);
 143         int (*txq_attach_buf_to_tfd)(struct iwl_priv *priv,
 144                                      struct iwl_tx_queue *txq,
 145                                      dma_addr_t addr,
 146                                      u16 len, u8 reset, u8 pad);
 147         void (*txq_free_tfd)(struct iwl_priv *priv,
 148                              struct iwl_tx_queue *txq);
 149         int (*txq_init)(struct iwl_priv *priv,
 150                         struct iwl_tx_queue *txq);
 151         /* aggregations */
 152         int (*txq_agg_enable)(struct iwl_priv *priv, int txq_id, int tx_fifo,
 153                               int sta_id, int tid, u16 ssn_idx);
 154         int (*txq_agg_disable)(struct iwl_priv *priv, u16 txq_id, u16 ssn_idx,
 155                                u8 tx_fifo);
 156         /* setup Rx handler */
 157         void (*rx_handler_setup)(struct iwl_priv *priv);
 158         /* setup deferred work */
 159         void (*setup_deferred_work)(struct iwl_priv *priv);
 160         /* cancel deferred work */
 161         void (*cancel_deferred_work)(struct iwl_priv *priv);
 162         /* alive notification after init uCode load */
 163         void (*init_alive_start)(struct iwl_priv *priv);
 164         /* alive notification */
 165         int (*alive_notify)(struct iwl_priv *priv);
 166         /* check validity of rtc data address */
 167         int (*is_valid_rtc_data_addr)(u32 addr);
 168         /* 1st ucode load */
 169         int (*load_ucode)(struct iwl_priv *priv);
 170         void (*dump_nic_event_log)(struct iwl_priv *priv);
 171         void (*dump_nic_error_log)(struct iwl_priv *priv);
 172         /* power management */
 173         struct iwl_apm_ops apm_ops;
 174
 175         /* power */
 176         int (*send_tx_power) (struct iwl_priv *priv);
 177         void (*update_chain_flags)(struct iwl_priv *priv);
 178         void (*post_associate) (struct iwl_priv *priv);
 179         void (*config_ap) (struct iwl_priv *priv);
 180         irqreturn_t (*isr) (int irq, void *data);
 181
 182         /* eeprom operations (as defined in iwl-eeprom.h) */
 183         struct iwl_eeprom_ops eeprom_ops;
 184
 185         /* temperature */
 186         struct iwl_temp_ops temp_ops;
 187 };
 188
 189 struct iwl_led_ops {
 190         int (*cmd)(struct iwl_priv *priv, struct iwl_led_cmd *led_cmd);
 191         int (*on)(struct iwl_priv *priv);
 192         int (*off)(struct iwl_priv *priv);
 193 };
 194
 195 struct iwl_ops {
 196         const struct iwl_ucode_ops *ucode;
 197         const struct iwl_lib_ops *lib;
 198         const struct iwl_hcmd_ops *hcmd;
 199         const struct iwl_hcmd_utils_ops *utils;
 200         const struct iwl_led_ops *led;
 201 };
 202
 203 struct iwl_mod_params {
 204         int sw_crypto;          /* def: 0 = using hardware encryption */
 205         int disable_hw_scan;    /* def: 0 = use h/w scan */
 206         int num_of_queues;      /* def: HW dependent */
 207         int disable_11n;        /* def: 0 = 11n capabilities enabled */
 208         int amsdu_size_8K;      /* def: 1 = enable 8K amsdu size */
 209         int antenna;            /* def: 0 = both antennas (use diversity) */
 210         int restart_fw;         /* def: 1 = restart firmware */
 211 };
 212
 213 /**
 214  * struct iwl_cfg
 215  * @fw_name_pre: Firmware filename prefix. The api version and extension
 216  *      (.ucode) will be added to filename before loading from disk. The
 217  *      filename is constructed as fw_name_pre<api>.ucode.
 218  * @ucode_api_max: Highest version of uCode API supported by driver.
 219  * @ucode_api_min: Lowest version of uCode API supported by driver.
 220  * @pa_type: used by 6000 series only to identify the type of Power Amplifier
 221  * @max_ll_items: max number of OTP blocks
 222  * @shadow_ram_support: shadow support for OTP memory
 223  * @led_compensation: compensate on the led on/off time per HW according
 224  *      to the deviation to achieve the desired led frequency.
 225  *      The detail algorithm is described in iwl-led.c
 226  * @use_rts_for_ht: use rts/cts protection for HT traffic
 227  * @chain_noise_num_beacons: number of beacons used to compute chain noise
 228  *
 229  * We enable the driver to be backward compatible wrt API version. The
 230  * driver specifies which APIs it supports (with @ucode_api_max being the
 231  * highest and @ucode_api_min the lowest). Firmware will only be loaded if
 232  * it has a supported API version. The firmware's API version will be
 233  * stored in @iwl_priv, enabling the driver to make runtime changes based
 234  * on firmware version used.
 235  *
 236  * For example,
 237  * if (IWL_UCODE_API(priv->ucode_ver) >= 2) {
 238  *      Driver interacts with Firmware API version >= 2.
 239  * } else {
 240  *      Driver interacts with Firmware API version 1.
 241  * }
 242  *
 243  * The ideal usage of this infrastructure is to treat a new ucode API
 244  * release as a new hardware revision. That is, through utilizing the
 245  * iwl_hcmd_utils_ops etc. we accommodate different command structures
 246  * and flows between hardware versions (4965/5000) as well as their API
 247  * versions.
 248  *
 249  */
 250 struct iwl_cfg {
 251         const char *name;
 252         const char *fw_name_pre;
 253         const unsigned int ucode_api_max;
 254         const unsigned int ucode_api_min;
 255         unsigned int sku;
 256         int eeprom_size;
 257         u16  eeprom_ver;
 258         u16  eeprom_calib_ver;
 259         int num_of_queues;      /* def: HW dependent */
 260         int num_of_ampdu_queues;/* def: HW dependent */
 261         const struct iwl_ops *ops;
 262         const struct iwl_mod_params *mod_params;
 263         u8   valid_tx_ant;
 264         u8   valid_rx_ant;
 265         bool need_pll_cfg;
 266         bool use_isr_legacy;
 267         enum iwl_pa_type pa_type;
 268         const u16 max_ll_items;
 269         const bool shadow_ram_support;
 270         const bool ht_greenfield_support;
 271         u16 led_compensation;
 272         const bool broken_powersave;
 273         bool use_rts_for_ht;
 274         int chain_noise_num_beacons;
 275         const bool supports_idle;
 276 };
 277
 278 /***************************
 279  *   L i b                 *
 280  ***************************/
 281
 282 struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg,
 283                 struct ieee80211_ops *hw_ops);
 284 void iwl_hw_detect(struct iwl_priv *priv);
 285 void iwl_reset_qos(struct iwl_priv *priv);
 286 void iwl_activate_qos(struct iwl_priv *priv, u8 force);
 287 int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
 288                     const struct ieee80211_tx_queue_params *params);
 289 void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt);
 290 int iwl_check_rxon_cmd(struct iwl_priv *priv);
 291 int iwl_full_rxon_required(struct iwl_priv *priv);
 292 void iwl_set_rxon_chain(struct iwl_priv *priv);
 293 int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch);
 294 void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf);
 295 u8 iwl_is_ht40_tx_allowed(struct iwl_priv *priv,
 296                          struct ieee80211_sta_ht_cap *sta_ht_inf);
 297 void iwl_set_flags_for_band(struct iwl_priv *priv, enum ieee80211_band band);
 298 void iwl_connection_init_rx_config(struct iwl_priv *priv, int mode);
 299 int iwl_set_decrypted_flag(struct iwl_priv *priv,
 300                            struct ieee80211_hdr *hdr,
 301                            u32 decrypt_res,
 302                            struct ieee80211_rx_status *stats);
 303 void iwl_irq_handle_error(struct iwl_priv *priv);
 304 void iwl_configure_filter(struct ieee80211_hw *hw,
 305                           unsigned int changed_flags,
 306                           unsigned int *total_flags, u64 multicast);
 307 int iwl_hw_nic_init(struct iwl_priv *priv);
 308 int iwl_setup_mac(struct iwl_priv *priv);
 309 int iwl_set_hw_params(struct iwl_priv *priv);
 310 int iwl_init_drv(struct iwl_priv *priv);
 311 void iwl_uninit_drv(struct iwl_priv *priv);
 312 bool iwl_is_monitor_mode(struct iwl_priv *priv);
 313 void iwl_post_associate(struct iwl_priv *priv);
 314 void iwl_bss_info_changed(struct ieee80211_hw *hw,
 315                                      struct ieee80211_vif *vif,
 316                                      struct ieee80211_bss_conf *bss_conf,
 317                                      u32 changes);
 318 int iwl_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb);
 319 int iwl_commit_rxon(struct iwl_priv *priv);
 320 int iwl_set_mode(struct iwl_priv *priv, int mode);
 321 int iwl_mac_add_interface(struct ieee80211_hw *hw,
 322                                  struct ieee80211_if_init_conf *conf);
 323 void iwl_mac_remove_interface(struct ieee80211_hw *hw,
 324                                  struct ieee80211_if_init_conf *conf);
 325 int iwl_mac_config(struct ieee80211_hw *hw, u32 changed);
 326 void iwl_config_ap(struct iwl_priv *priv);
 327 int iwl_mac_get_tx_stats(struct ieee80211_hw *hw,
 328                          struct ieee80211_tx_queue_stats *stats);
 329 void iwl_mac_reset_tsf(struct ieee80211_hw *hw);
 330 int iwl_alloc_txq_mem(struct iwl_priv *priv);
 331 void iwl_free_txq_mem(struct iwl_priv *priv);
 332 void iwlcore_rts_tx_cmd_flag(struct ieee80211_tx_info *info,
 333                                 __le32 *tx_flags);
 334 #ifdef CONFIG_IWLWIFI_DEBUGFS
 335 int iwl_alloc_traffic_mem(struct iwl_priv *priv);
 336 void iwl_free_traffic_mem(struct iwl_priv *priv);
 337 void iwl_reset_traffic_log(struct iwl_priv *priv);
 338 void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
 339                                 u16 length, struct ieee80211_hdr *header);
 340 void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
 341                                 u16 length, struct ieee80211_hdr *header);
 342 const char *get_mgmt_string(int cmd);
 343 const char *get_ctrl_string(int cmd);
 344 void iwl_clear_tx_stats(struct iwl_priv *priv);
 345 void iwl_clear_rx_stats(struct iwl_priv *priv);
 346 void iwl_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc,
 347                       u16 len);
 348 #else
 349 static inline int iwl_alloc_traffic_mem(struct iwl_priv *priv)
 350 {
 351         return 0;
 352 }
 353 static inline void iwl_free_traffic_mem(struct iwl_priv *priv)
 354 {
 355 }
 356 static inline void iwl_reset_traffic_log(struct iwl_priv *priv)
 357 {
 358 }
 359 static inline void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
 360                       u16 length, struct ieee80211_hdr *header)
 361 {
 362 }
 363 static inline void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
 364                       u16 length, struct ieee80211_hdr *header)
 365 {
 366 }
 367 static inline void iwl_update_stats(struct iwl_priv *priv, bool is_tx,
 368                                     __le16 fc, u16 len)
 369 {
 370         struct traffic_stats    *stats;
 371
 372         if (is_tx)
 373                 stats = &priv->tx_stats;
 374         else
 375                 stats = &priv->rx_stats;
 376
 377         if (ieee80211_is_data(fc)) {
 378                 /* data */
 379                 stats->data_bytes += len;
 380         }
 381 }
 382 #endif
 383 /*****************************************************
 384  * RX handlers.
 385  * **************************************************/
 386 void iwl_rx_pm_sleep_notif(struct iwl_priv *priv,
 387                            struct iwl_rx_mem_buffer *rxb);
 388 void iwl_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
 389                                       struct iwl_rx_mem_buffer *rxb);
 390 void iwl_rx_reply_error(struct iwl_priv *priv,
 391                         struct iwl_rx_mem_buffer *rxb);
 392
 393 /*****************************************************
 394 * RX
 395 ******************************************************/
 396 void iwl_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
 397 void iwl_cmd_queue_free(struct iwl_priv *priv);
 398 int iwl_rx_queue_alloc(struct iwl_priv *priv);
 399 void iwl_rx_handle(struct iwl_priv *priv);
 400 int iwl_rx_queue_update_write_ptr(struct iwl_priv *priv,
 401                                   struct iwl_rx_queue *q);
 402 void iwl_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
 403 void iwl_rx_replenish(struct iwl_priv *priv);
 404 void iwl_rx_replenish_now(struct iwl_priv *priv);
 405 int iwl_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
 406 int iwl_rx_queue_restock(struct iwl_priv *priv);
 407 int iwl_rx_queue_space(const struct iwl_rx_queue *q);
 408 void iwl_rx_allocate(struct iwl_priv *priv, gfp_t priority);
 409 void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
 410 int iwl_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index);
 411 /* Handlers */
 412 void iwl_rx_missed_beacon_notif(struct iwl_priv *priv,
 413                                struct iwl_rx_mem_buffer *rxb);
 414 void iwl_rx_statistics(struct iwl_priv *priv,
 415                               struct iwl_rx_mem_buffer *rxb);
 416 void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
 417
 418 /* TX helpers */
 419
 420 /*****************************************************
 421 * TX
 422 ******************************************************/
 423 int iwl_txq_ctx_reset(struct iwl_priv *priv);
 424 void iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq);
 425 int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv,
 426                                  struct iwl_tx_queue *txq,
 427                                  dma_addr_t addr, u16 len, u8 reset, u8 pad);
 428 int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb);
 429 void iwl_hw_txq_ctx_free(struct iwl_priv *priv);
 430 int iwl_hw_tx_queue_init(struct iwl_priv *priv,
 431                          struct iwl_tx_queue *txq);
 432 int iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq);
 433 int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
 434                       int slots_num, u32 txq_id);
 435 void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id);
 436 int iwl_tx_agg_start(struct iwl_priv *priv, const u8 *ra, u16 tid, u16 *ssn);
 437 int iwl_tx_agg_stop(struct iwl_priv *priv , const u8 *ra, u16 tid);
 438 int iwl_txq_check_empty(struct iwl_priv *priv, int sta_id, u8 tid, int txq_id);
 439 /*****************************************************
 440  * TX power
 441  ****************************************************/
 442 int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force);
 443
 444 /*******************************************************************************
 445  * Rate
 446  ******************************************************************************/
 447
 448 void iwl_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags,
 449                               struct ieee80211_tx_info *info);
 450 int iwl_hwrate_to_plcp_idx(u32 rate_n_flags);
 451 int iwl_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band);
 452
 453 u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv);
 454
 455 u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant_idx);
 456
 457 static inline u32 iwl_ant_idx_to_flags(u8 ant_idx)
 458 {
 459         return BIT(ant_idx) << RATE_MCS_ANT_POS;
 460 }
 461
 462 static inline u8 iwl_hw_get_rate(__le32 rate_n_flags)
 463 {
 464         return le32_to_cpu(rate_n_flags) & 0xFF;
 465 }
 466 static inline u32 iwl_hw_get_rate_n_flags(__le32 rate_n_flags)
 467 {
 468         return le32_to_cpu(rate_n_flags) & 0x1FFFF;
 469 }
 470 static inline __le32 iwl_hw_set_rate_n_flags(u8 rate, u32 flags)
 471 {
 472         return cpu_to_le32(flags|(u32)rate);
 473 }
 474
 475 /*******************************************************************************
 476  * Scanning
 477  ******************************************************************************/
 478 void iwl_init_scan_params(struct iwl_priv *priv);
 479 int iwl_scan_cancel(struct iwl_priv *priv);
 480 int iwl_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms);
 481 int iwl_mac_hw_scan(struct ieee80211_hw *hw, struct cfg80211_scan_request *req);
 482 u16 iwl_fill_probe_req(struct iwl_priv *priv, struct ieee80211_mgmt *frame,
 483                        const u8 *ie, int ie_len, int left);
 484 void iwl_setup_rx_scan_handlers(struct iwl_priv *priv);
 485 u16 iwl_get_active_dwell_time(struct iwl_priv *priv,
 486                               enum ieee80211_band band,
 487                               u8 n_probes);
 488 u16 iwl_get_passive_dwell_time(struct iwl_priv *priv,
 489                                enum ieee80211_band band);
 490 void iwl_bg_scan_check(struct work_struct *data);
 491 void iwl_bg_abort_scan(struct work_struct *work);
 492 void iwl_bg_scan_completed(struct work_struct *work);
 493 void iwl_setup_scan_deferred_work(struct iwl_priv *priv);
 494
 495 /* For faster active scanning, scan will move to the next channel if fewer than
 496  * PLCP_QUIET_THRESH packets are heard on this channel within
 497  * ACTIVE_QUIET_TIME after sending probe request.  This shortens the dwell
 498  * time if it's a quiet channel (nothing responded to our probe, and there's
 499  * no other traffic).
 500  * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
 501 #define IWL_ACTIVE_QUIET_TIME       cpu_to_le16(10)  /* msec */
 502 #define IWL_PLCP_QUIET_THRESH       cpu_to_le16(1)  /* packets */
 503
 504
 505 /*******************************************************************************
 506  * Calibrations - implemented in iwl-calib.c
 507  ******************************************************************************/
 508 int iwl_send_calib_results(struct iwl_priv *priv);
 509 int iwl_calib_set(struct iwl_calib_result *res, const u8 *buf, int len);
 510 void iwl_calib_free_results(struct iwl_priv *priv);
 511
 512 /*******************************************************************************
 513  * Spectrum Measureemtns in  iwl-spectrum.c
 514  ******************************************************************************/
 515 #ifdef CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT
 516 void iwl_setup_spectrum_handlers(struct iwl_priv *priv);
 517 #else
 518 static inline void iwl_setup_spectrum_handlers(struct iwl_priv *priv) {}
 519 #endif
 520 /*****************************************************
 521  *   S e n d i n g     H o s t     C o m m a n d s   *
 522  *****************************************************/
 523
 524 const char *get_cmd_string(u8 cmd);
 525 int __must_check iwl_send_cmd_sync(struct iwl_priv *priv,
 526                                    struct iwl_host_cmd *cmd);
 527 int iwl_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 528 int __must_check iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id,
 529                                   u16 len, const void *data);
 530 int iwl_send_cmd_pdu_async(struct iwl_priv *priv, u8 id, u16 len,
 531                            const void *data,
 532                            void (*callback)(struct iwl_priv *priv,
 533                                             struct iwl_device_cmd *cmd,
 534                                             struct iwl_rx_packet *pkt));
 535
 536 int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 537
 538 int iwl_send_card_state(struct iwl_priv *priv, u32 flags,
 539                         u8 meta_flag);
 540
 541 /*****************************************************
 542  * PCI                                               *
 543  *****************************************************/
 544 irqreturn_t iwl_isr_legacy(int irq, void *data);
 545 int iwl_reset_ict(struct iwl_priv *priv);
 546 void iwl_disable_ict(struct iwl_priv *priv);
 547 int iwl_alloc_isr_ict(struct iwl_priv *priv);
 548 void iwl_free_isr_ict(struct iwl_priv *priv);
 549 irqreturn_t iwl_isr_ict(int irq, void *data);
 550
 551 static inline u16 iwl_pcie_link_ctl(struct iwl_priv *priv)
 552 {
 553         int pos;
 554         u16 pci_lnk_ctl;
 555         pos = pci_find_capability(priv->pci_dev, PCI_CAP_ID_EXP);
 556         pci_read_config_word(priv->pci_dev, pos + PCI_EXP_LNKCTL, &pci_lnk_ctl);
 557         return pci_lnk_ctl;
 558 }
 559 #ifdef CONFIG_PM
 560 int iwl_pci_suspend(struct pci_dev *pdev, pm_message_t state);
 561 int iwl_pci_resume(struct pci_dev *pdev);
 562 #endif /* CONFIG_PM */
 563
 564 /*****************************************************
 565 *  Error Handling Debugging
 566 ******************************************************/
 567 #ifdef CONFIG_IWLWIFI_DEBUG
 568 void iwl_dump_nic_event_log(struct iwl_priv *priv);
 569 void iwl_dump_nic_error_log(struct iwl_priv *priv);
 570 #else
 571 static inline void iwl_dump_nic_event_log(struct iwl_priv *priv)
 572 {
 573 }
 574
 575 static inline void iwl_dump_nic_error_log(struct iwl_priv *priv)
 576 {
 577 }
 578 #endif
 579
 580 void iwl_clear_isr_stats(struct iwl_priv *priv);
 581
 582 /*****************************************************
 583 *  GEOS
 584 ******************************************************/
 585 int iwlcore_init_geos(struct iwl_priv *priv);
 586 void iwlcore_free_geos(struct iwl_priv *priv);
 587
 588 /*************** DRIVER STATUS FUNCTIONS   *****/
 589
 590 #define STATUS_HCMD_ACTIVE      0       /* host command in progress */
 591 #define STATUS_HCMD_SYNC_ACTIVE 1       /* sync host command in progress */
 592 #define STATUS_INT_ENABLED      2
 593 #define STATUS_RF_KILL_HW       3
 594 #define STATUS_CT_KILL          4
 595 #define STATUS_INIT             5
 596 #define STATUS_ALIVE            6
 597 #define STATUS_READY            7
 598 #define STATUS_TEMPERATURE      8
 599 #define STATUS_GEO_CONFIGURED   9
 600 #define STATUS_EXIT_PENDING     10
 601 #define STATUS_STATISTICS       12
 602 #define STATUS_SCANNING         13
 603 #define STATUS_SCAN_ABORTING    14
 604 #define STATUS_SCAN_HW          15
 605 #define STATUS_POWER_PMI        16
 606 #define STATUS_FW_ERROR         17
 607 #define STATUS_MODE_PENDING     18
 608
 609
 610 static inline int iwl_is_ready(struct iwl_priv *priv)
 611 {
 612         /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
 613          * set but EXIT_PENDING is not */
 614         return test_bit(STATUS_READY, &priv->status) &&
 615                test_bit(STATUS_GEO_CONFIGURED, &priv->status) &&
 616                !test_bit(STATUS_EXIT_PENDING, &priv->status);
 617 }
 618
 619 static inline int iwl_is_alive(struct iwl_priv *priv)
 620 {
 621         return test_bit(STATUS_ALIVE, &priv->status);
 622 }
 623
 624 static inline int iwl_is_init(struct iwl_priv *priv)
 625 {
 626         return test_bit(STATUS_INIT, &priv->status);
 627 }
 628
 629 static inline int iwl_is_rfkill_hw(struct iwl_priv *priv)
 630 {
 631         return test_bit(STATUS_RF_KILL_HW, &priv->status);
 632 }
 633
 634 static inline int iwl_is_rfkill(struct iwl_priv *priv)
 635 {
 636         return iwl_is_rfkill_hw(priv);
 637 }
 638
 639 static inline int iwl_is_ctkill(struct iwl_priv *priv)
 640 {
 641         return test_bit(STATUS_CT_KILL, &priv->status);
 642 }
 643
 644 static inline int iwl_is_ready_rf(struct iwl_priv *priv)
 645 {
 646
 647         if (iwl_is_rfkill(priv))
 648                 return 0;
 649
 650         return iwl_is_ready(priv);
 651 }
 652
 653 extern void iwl_rf_kill_ct_config(struct iwl_priv *priv);
 654 extern int iwl_send_bt_config(struct iwl_priv *priv);
 655 extern int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags);
 656 extern int iwl_verify_ucode(struct iwl_priv *priv);
 657 extern int iwl_send_lq_cmd(struct iwl_priv *priv,
 658                 struct iwl_link_quality_cmd *lq, u8 flags);
 659 extern void iwl_rx_reply_rx(struct iwl_priv *priv,
 660                 struct iwl_rx_mem_buffer *rxb);
 661 extern void iwl_rx_reply_rx_phy(struct iwl_priv *priv,
 662                                     struct iwl_rx_mem_buffer *rxb);
 663 void iwl_rx_reply_compressed_ba(struct iwl_priv *priv,
 664                                            struct iwl_rx_mem_buffer *rxb);
 665 void iwl_apm_stop(struct iwl_priv *priv);
 666 int iwl_apm_stop_master(struct iwl_priv *priv);
 667
 668 void iwl_setup_rxon_timing(struct iwl_priv *priv);
 669 static inline int iwl_send_rxon_assoc(struct iwl_priv *priv)
 670 {
 671         return priv->cfg->ops->hcmd->rxon_assoc(priv);
 672 }
 673 static inline int iwlcore_commit_rxon(struct iwl_priv *priv)
 674 {
 675         return priv->cfg->ops->hcmd->commit_rxon(priv);
 676 }
 677 static inline void iwlcore_config_ap(struct iwl_priv *priv)
 678 {
 679         priv->cfg->ops->lib->config_ap(priv);
 680 }
 681 static inline const struct ieee80211_supported_band *iwl_get_hw_mode(
 682                         struct iwl_priv *priv, enum ieee80211_band band)
 683 {
 684         return priv->hw->wiphy->bands[band];
 685 }
 686 #endif /* __iwl_core_h__ */