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 - 2010 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 - 2010 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 "in-tree:"
  74 #define DRV_COPYRIGHT   "Copyright(c) 2003-2010 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 TIME_UNIT               1024
  83
  84 #define IWL_SKU_G       0x1
  85 #define IWL_SKU_A       0x2
  86 #define IWL_SKU_N       0x8
  87
  88 #define IWL_CMD(x) case x: return #x
  89
  90 struct iwl_hcmd_ops {
  91         int (*rxon_assoc)(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
  92         int (*commit_rxon)(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
  93         void (*set_rxon_chain)(struct iwl_priv *priv,
  94                                struct iwl_rxon_context *ctx);
  95         int (*set_tx_ant)(struct iwl_priv *priv, u8 valid_tx_ant);
  96         void (*send_bt_config)(struct iwl_priv *priv);
  97         int (*set_pan_params)(struct iwl_priv *priv);
  98 };
  99
 100 struct iwl_hcmd_utils_ops {
 101         u16 (*get_hcmd_size)(u8 cmd_id, u16 len);
 102         u16 (*build_addsta_hcmd)(const struct iwl_addsta_cmd *cmd, u8 *data);
 103         void (*gain_computation)(struct iwl_priv *priv,
 104                         u32 *average_noise,
 105                         u16 min_average_noise_antennat_i,
 106                         u32 min_average_noise,
 107                         u8 default_chain);
 108         void (*chain_noise_reset)(struct iwl_priv *priv);
 109         void (*tx_cmd_protection)(struct iwl_priv *priv,
 110                                   struct ieee80211_tx_info *info,
 111                                   __le16 fc, __le32 *tx_flags);
 112         int  (*calc_rssi)(struct iwl_priv *priv,
 113                           struct iwl_rx_phy_res *rx_resp);
 114         int (*request_scan)(struct iwl_priv *priv, struct ieee80211_vif *vif);
 115         void (*post_scan)(struct iwl_priv *priv);
 116 };
 117
 118 struct iwl_apm_ops {
 119         int (*init)(struct iwl_priv *priv);
 120         void (*config)(struct iwl_priv *priv);
 121 };
 122
 123 struct iwl_debugfs_ops {
 124         ssize_t (*rx_stats_read)(struct file *file, char __user *user_buf,
 125                                  size_t count, loff_t *ppos);
 126         ssize_t (*tx_stats_read)(struct file *file, char __user *user_buf,
 127                                  size_t count, loff_t *ppos);
 128         ssize_t (*general_stats_read)(struct file *file, char __user *user_buf,
 129                                       size_t count, loff_t *ppos);
 130         ssize_t (*bt_stats_read)(struct file *file, char __user *user_buf,
 131                                  size_t count, loff_t *ppos);
 132         ssize_t (*reply_tx_error)(struct file *file, char __user *user_buf,
 133                                  size_t count, loff_t *ppos);
 134 };
 135
 136 struct iwl_temp_ops {
 137         void (*temperature)(struct iwl_priv *priv);
 138 };
 139
 140 struct iwl_tt_ops {
 141         bool (*lower_power_detection)(struct iwl_priv *priv);
 142         u8 (*tt_power_mode)(struct iwl_priv *priv);
 143         bool (*ct_kill_check)(struct iwl_priv *priv);
 144 };
 145
 146 struct iwl_lib_ops {
 147         /* set hw dependent parameters */
 148         int (*set_hw_params)(struct iwl_priv *priv);
 149         /* Handling TX */
 150         void (*txq_update_byte_cnt_tbl)(struct iwl_priv *priv,
 151                                         struct iwl_tx_queue *txq,
 152                                         u16 byte_cnt);
 153         void (*txq_inval_byte_cnt_tbl)(struct iwl_priv *priv,
 154                                        struct iwl_tx_queue *txq);
 155         void (*txq_set_sched)(struct iwl_priv *priv, u32 mask);
 156         int (*txq_attach_buf_to_tfd)(struct iwl_priv *priv,
 157                                      struct iwl_tx_queue *txq,
 158                                      dma_addr_t addr,
 159                                      u16 len, u8 reset, u8 pad);
 160         void (*txq_free_tfd)(struct iwl_priv *priv,
 161                              struct iwl_tx_queue *txq);
 162         int (*txq_init)(struct iwl_priv *priv,
 163                         struct iwl_tx_queue *txq);
 164         /* aggregations */
 165         int (*txq_agg_enable)(struct iwl_priv *priv, int txq_id, int tx_fifo,
 166                               int sta_id, int tid, u16 ssn_idx);
 167         int (*txq_agg_disable)(struct iwl_priv *priv, u16 txq_id, u16 ssn_idx,
 168                                u8 tx_fifo);
 169         /* setup Rx handler */
 170         void (*rx_handler_setup)(struct iwl_priv *priv);
 171         /* setup deferred work */
 172         void (*setup_deferred_work)(struct iwl_priv *priv);
 173         /* cancel deferred work */
 174         void (*cancel_deferred_work)(struct iwl_priv *priv);
 175         /* alive notification after init uCode load */
 176         void (*init_alive_start)(struct iwl_priv *priv);
 177         /* alive notification */
 178         int (*alive_notify)(struct iwl_priv *priv);
 179         /* check validity of rtc data address */
 180         int (*is_valid_rtc_data_addr)(u32 addr);
 181         /* 1st ucode load */
 182         int (*load_ucode)(struct iwl_priv *priv);
 183         int (*dump_nic_event_log)(struct iwl_priv *priv,
 184                                   bool full_log, char **buf, bool display);
 185         void (*dump_nic_error_log)(struct iwl_priv *priv);
 186         void (*dump_csr)(struct iwl_priv *priv);
 187         int (*dump_fh)(struct iwl_priv *priv, char **buf, bool display);
 188         int (*set_channel_switch)(struct iwl_priv *priv,
 189                                   struct ieee80211_channel_switch *ch_switch);
 190         /* power management */
 191         struct iwl_apm_ops apm_ops;
 192
 193         /* power */
 194         int (*send_tx_power) (struct iwl_priv *priv);
 195         void (*update_chain_flags)(struct iwl_priv *priv);
 196         void (*post_associate)(struct iwl_priv *priv,
 197                                struct ieee80211_vif *vif);
 198         void (*config_ap)(struct iwl_priv *priv, struct ieee80211_vif *vif);
 199         irqreturn_t (*isr) (int irq, void *data);
 200
 201         /* eeprom operations (as defined in iwl-eeprom.h) */
 202         struct iwl_eeprom_ops eeprom_ops;
 203
 204         /* temperature */
 205         struct iwl_temp_ops temp_ops;
 206         /* station management */
 207         int (*manage_ibss_station)(struct iwl_priv *priv,
 208                                    struct ieee80211_vif *vif, bool add);
 209         int (*update_bcast_stations)(struct iwl_priv *priv);
 210         /* recover from tx queue stall */
 211         void (*recover_from_tx_stall)(unsigned long data);
 212         /* check for plcp health */
 213         bool (*check_plcp_health)(struct iwl_priv *priv,
 214                                         struct iwl_rx_packet *pkt);
 215         /* check for ack health */
 216         bool (*check_ack_health)(struct iwl_priv *priv,
 217                                         struct iwl_rx_packet *pkt);
 218         int (*txfifo_flush)(struct iwl_priv *priv, u16 flush_control);
 219         void (*dev_txfifo_flush)(struct iwl_priv *priv, u16 flush_control);
 220
 221         struct iwl_debugfs_ops debugfs_ops;
 222
 223         /* thermal throttling */
 224         struct iwl_tt_ops tt_ops;
 225 };
 226
 227 struct iwl_led_ops {
 228         int (*cmd)(struct iwl_priv *priv, struct iwl_led_cmd *led_cmd);
 229         int (*on)(struct iwl_priv *priv);
 230         int (*off)(struct iwl_priv *priv);
 231 };
 232
 233 /* NIC specific ops */
 234 struct iwl_nic_ops {
 235         void (*additional_nic_config)(struct iwl_priv *priv);
 236 };
 237
 238 struct iwl_ops {
 239         const struct iwl_lib_ops *lib;
 240         const struct iwl_hcmd_ops *hcmd;
 241         const struct iwl_hcmd_utils_ops *utils;
 242         const struct iwl_led_ops *led;
 243         const struct iwl_nic_ops *nic;
 244 };
 245
 246 struct iwl_mod_params {
 247         int sw_crypto;          /* def: 0 = using hardware encryption */
 248         int disable_hw_scan;    /* def: 0 = use h/w scan */
 249         int num_of_queues;      /* def: HW dependent */
 250         int disable_11n;        /* def: 0 = 11n capabilities enabled */
 251         int amsdu_size_8K;      /* def: 1 = enable 8K amsdu size */
 252         int antenna;            /* def: 0 = both antennas (use diversity) */
 253         int restart_fw;         /* def: 1 = restart firmware */
 254 };
 255
 256 /*
 257  * @max_ll_items: max number of OTP blocks
 258  * @shadow_ram_support: shadow support for OTP memory
 259  * @led_compensation: compensate on the led on/off time per HW according
 260  *      to the deviation to achieve the desired led frequency.
 261  *      The detail algorithm is described in iwl-led.c
 262  * @chain_noise_num_beacons: number of beacons used to compute chain noise
 263  * @adv_thermal_throttle: support advance thermal throttle
 264  * @support_ct_kill_exit: support ct kill exit condition
 265  * @support_wimax_coexist: support wimax/wifi co-exist
 266  * @plcp_delta_threshold: plcp error rate threshold used to trigger
 267  *      radio tuning when there is a high receiving plcp error rate
 268  * @chain_noise_scale: default chain noise scale used for gain computation
 269  * @monitor_recover_period: default timer used to check stuck queues
 270  * @temperature_kelvin: temperature report by uCode in kelvin
 271  * @max_event_log_size: size of event log buffer size for ucode event logging
 272  * @tx_power_by_driver: tx power calibration performed by driver
 273  *      instead of uCode
 274  * @ucode_tracing: support ucode continuous tracing
 275  * @sensitivity_calib_by_driver: driver has the capability to perform
 276  *      sensitivity calibration operation
 277  * @chain_noise_calib_by_driver: driver has the capability to perform
 278  *      chain noise calibration operation
 279 */
 280 struct iwl_base_params {
 281         int eeprom_size;
 282         int num_of_queues;      /* def: HW dependent */
 283         int num_of_ampdu_queues;/* def: HW dependent */
 284         /* for iwl_apm_init() */
 285         u32 pll_cfg_val;
 286         bool set_l0s;
 287         bool use_bsm;
 288
 289         bool use_isr_legacy;
 290         const u16 max_ll_items;
 291         const bool shadow_ram_support;
 292         u16 led_compensation;
 293         const bool broken_powersave;
 294         int chain_noise_num_beacons;
 295         const bool supports_idle;
 296         bool adv_thermal_throttle;
 297         bool support_ct_kill_exit;
 298         const bool support_wimax_coexist;
 299         u8 plcp_delta_threshold;
 300         s32 chain_noise_scale;
 301         /* timer period for monitor the driver queues */
 302         u32 monitor_recover_period;
 303         bool temperature_kelvin;
 304         u32 max_event_log_size;
 305         const bool tx_power_by_driver;
 306         const bool ucode_tracing;
 307         const bool sensitivity_calib_by_driver;
 308         const bool chain_noise_calib_by_driver;
 309 };
 310 /*
 311  * @advanced_bt_coexist: support advanced bt coexist
 312  * @bt_init_traffic_load: specify initial bt traffic load
 313  * @bt_prio_boost: default bt priority boost value
 314  * @bt_statistics: use BT version of statistics notification
 315  * @agg_time_limit: maximum number of uSec in aggregation
 316  * @ampdu_factor: Maximum A-MPDU length factor
 317  * @ampdu_density: Minimum A-MPDU spacing
 318 */
 319 struct iwl_bt_params {
 320         bool advanced_bt_coexist;
 321         u8 bt_init_traffic_load;
 322         u8 bt_prio_boost;
 323         const bool bt_statistics;
 324         u16 agg_time_limit;
 325         u8 ampdu_factor;
 326         u8 ampdu_density;
 327 };
 328 /*
 329  * @use_rts_for_aggregation: use rts/cts protection for HT traffic
 330 */
 331 struct iwl_ht_params {
 332         const bool ht_greenfield_support; /* if used set to true */
 333         bool use_rts_for_aggregation;
 334 };
 335
 336 /**
 337  * struct iwl_cfg
 338  * @fw_name_pre: Firmware filename prefix. The api version and extension
 339  *      (.ucode) will be added to filename before loading from disk. The
 340  *      filename is constructed as fw_name_pre<api>.ucode.
 341  * @ucode_api_max: Highest version of uCode API supported by driver.
 342  * @ucode_api_min: Lowest version of uCode API supported by driver.
 343  * @pa_type: used by 6000 series only to identify the type of Power Amplifier
 344  * @need_dc_calib: need to perform init dc calibration
 345  * @need_temp_offset_calib: need to perform temperature offset calibration
 346  * @scan_antennas: available antenna for scan operation
 347  *
 348  * We enable the driver to be backward compatible wrt API version. The
 349  * driver specifies which APIs it supports (with @ucode_api_max being the
 350  * highest and @ucode_api_min the lowest). Firmware will only be loaded if
 351  * it has a supported API version. The firmware's API version will be
 352  * stored in @iwl_priv, enabling the driver to make runtime changes based
 353  * on firmware version used.
 354  *
 355  * For example,
 356  * if (IWL_UCODE_API(priv->ucode_ver) >= 2) {
 357  *      Driver interacts with Firmware API version >= 2.
 358  * } else {
 359  *      Driver interacts with Firmware API version 1.
 360  * }
 361  *
 362  * The ideal usage of this infrastructure is to treat a new ucode API
 363  * release as a new hardware revision. That is, through utilizing the
 364  * iwl_hcmd_utils_ops etc. we accommodate different command structures
 365  * and flows between hardware versions (4965/5000) as well as their API
 366  * versions.
 367  *
 368  */
 369 struct iwl_cfg {
 370         /* params specific to an individual device within a device family */
 371         const char *name;
 372         const char *fw_name_pre;
 373         const unsigned int ucode_api_max;
 374         const unsigned int ucode_api_min;
 375         u8   valid_tx_ant;
 376         u8   valid_rx_ant;
 377         unsigned int sku;
 378         u16  eeprom_ver;
 379         u16  eeprom_calib_ver;
 380         const struct iwl_ops *ops;
 381         /* module based parameters which can be set from modprobe cmd */
 382         const struct iwl_mod_params *mod_params;
 383         /* params not likely to change within a device family */
 384         struct iwl_base_params *base_params;
 385         /* params likely to change within a device family */
 386         struct iwl_ht_params *ht_params;
 387         struct iwl_bt_params *bt_params;
 388         enum iwl_pa_type pa_type;         /* if used set to IWL_PA_SYSTEM */
 389         const bool need_dc_calib;         /* if used set to true */
 390         const bool need_temp_offset_calib; /* if used set to true */
 391         u8 scan_rx_antennas[IEEE80211_NUM_BANDS];
 392         u8 scan_tx_antennas[IEEE80211_NUM_BANDS];
 393         const bool use_new_eeprom_reading; /* temporary, remove later */
 394 };
 395
 396 /***************************
 397  *   L i b                 *
 398  ***************************/
 399
 400 struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg,
 401                 struct ieee80211_ops *hw_ops);
 402 int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
 403                     const struct ieee80211_tx_queue_params *params);
 404 int iwl_mac_tx_last_beacon(struct ieee80211_hw *hw);
 405 void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
 406                            int hw_decrypt);
 407 int iwl_check_rxon_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 408 int iwl_full_rxon_required(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 409 int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch,
 410                          struct iwl_rxon_context *ctx);
 411 void iwl_set_flags_for_band(struct iwl_priv *priv,
 412                             struct iwl_rxon_context *ctx,
 413                             enum ieee80211_band band,
 414                             struct ieee80211_vif *vif);
 415 u8 iwl_get_single_channel_number(struct iwl_priv *priv,
 416                                   enum ieee80211_band band);
 417 void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf);
 418 bool iwl_is_ht40_tx_allowed(struct iwl_priv *priv,
 419                             struct iwl_rxon_context *ctx,
 420                             struct ieee80211_sta_ht_cap *ht_cap);
 421 void iwl_connection_init_rx_config(struct iwl_priv *priv,
 422                                    struct iwl_rxon_context *ctx);
 423 void iwl_set_rate(struct iwl_priv *priv);
 424 int iwl_set_decrypted_flag(struct iwl_priv *priv,
 425                            struct ieee80211_hdr *hdr,
 426                            u32 decrypt_res,
 427                            struct ieee80211_rx_status *stats);
 428 void iwl_irq_handle_error(struct iwl_priv *priv);
 429 void iwl_post_associate(struct iwl_priv *priv, struct ieee80211_vif *vif);
 430 void iwl_bss_info_changed(struct ieee80211_hw *hw,
 431                                      struct ieee80211_vif *vif,
 432                                      struct ieee80211_bss_conf *bss_conf,
 433                                      u32 changes);
 434 int iwl_mac_add_interface(struct ieee80211_hw *hw,
 435                           struct ieee80211_vif *vif);
 436 void iwl_mac_remove_interface(struct ieee80211_hw *hw,
 437                               struct ieee80211_vif *vif);
 438 int iwl_mac_config(struct ieee80211_hw *hw, u32 changed);
 439 void iwl_config_ap(struct iwl_priv *priv, struct ieee80211_vif *vif);
 440 void iwl_mac_reset_tsf(struct ieee80211_hw *hw);
 441 int iwl_alloc_txq_mem(struct iwl_priv *priv);
 442 void iwl_free_txq_mem(struct iwl_priv *priv);
 443 void iwlcore_tx_cmd_protection(struct iwl_priv *priv,
 444                                struct ieee80211_tx_info *info,
 445                                __le16 fc, __le32 *tx_flags);
 446 #ifdef CONFIG_IWLWIFI_DEBUGFS
 447 int iwl_alloc_traffic_mem(struct iwl_priv *priv);
 448 void iwl_free_traffic_mem(struct iwl_priv *priv);
 449 void iwl_reset_traffic_log(struct iwl_priv *priv);
 450 void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
 451                                 u16 length, struct ieee80211_hdr *header);
 452 void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
 453                                 u16 length, struct ieee80211_hdr *header);
 454 const char *get_mgmt_string(int cmd);
 455 const char *get_ctrl_string(int cmd);
 456 void iwl_clear_traffic_stats(struct iwl_priv *priv);
 457 void iwl_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc,
 458                       u16 len);
 459 #else
 460 static inline int iwl_alloc_traffic_mem(struct iwl_priv *priv)
 461 {
 462         return 0;
 463 }
 464 static inline void iwl_free_traffic_mem(struct iwl_priv *priv)
 465 {
 466 }
 467 static inline void iwl_reset_traffic_log(struct iwl_priv *priv)
 468 {
 469 }
 470 static inline void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
 471                       u16 length, struct ieee80211_hdr *header)
 472 {
 473 }
 474 static inline void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
 475                       u16 length, struct ieee80211_hdr *header)
 476 {
 477 }
 478 static inline void iwl_update_stats(struct iwl_priv *priv, bool is_tx,
 479                                     __le16 fc, u16 len)
 480 {
 481         struct traffic_stats    *stats;
 482
 483         if (is_tx)
 484                 stats = &priv->tx_stats;
 485         else
 486                 stats = &priv->rx_stats;
 487
 488         if (ieee80211_is_data(fc)) {
 489                 /* data */
 490                 stats->data_bytes += len;
 491         }
 492         iwl_leds_background(priv);
 493 }
 494 #endif
 495 /*****************************************************
 496  * RX handlers.
 497  * **************************************************/
 498 void iwl_rx_pm_sleep_notif(struct iwl_priv *priv,
 499                            struct iwl_rx_mem_buffer *rxb);
 500 void iwl_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
 501                                       struct iwl_rx_mem_buffer *rxb);
 502 void iwl_rx_reply_error(struct iwl_priv *priv,
 503                         struct iwl_rx_mem_buffer *rxb);
 504
 505 /*****************************************************
 506 * RX
 507 ******************************************************/
 508 void iwl_cmd_queue_free(struct iwl_priv *priv);
 509 int iwl_rx_queue_alloc(struct iwl_priv *priv);
 510 void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv,
 511                                   struct iwl_rx_queue *q);
 512 int iwl_rx_queue_space(const struct iwl_rx_queue *q);
 513 void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
 514 /* Handlers */
 515 void iwl_rx_spectrum_measure_notif(struct iwl_priv *priv,
 516                                           struct iwl_rx_mem_buffer *rxb);
 517 void iwl_recover_from_statistics(struct iwl_priv *priv,
 518                                 struct iwl_rx_packet *pkt);
 519 void iwl_chswitch_done(struct iwl_priv *priv, bool is_success);
 520 void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
 521
 522 /* TX helpers */
 523
 524 /*****************************************************
 525 * TX
 526 ******************************************************/
 527 void iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq);
 528 int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
 529                       int slots_num, u32 txq_id);
 530 void iwl_tx_queue_reset(struct iwl_priv *priv, struct iwl_tx_queue *txq,
 531                         int slots_num, u32 txq_id);
 532 void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id);
 533 /*****************************************************
 534  * TX power
 535  ****************************************************/
 536 int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force);
 537
 538 /*******************************************************************************
 539  * Rate
 540  ******************************************************************************/
 541
 542 u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv,
 543                             struct iwl_rxon_context *ctx);
 544
 545 /*******************************************************************************
 546  * Scanning
 547  ******************************************************************************/
 548 void iwl_init_scan_params(struct iwl_priv *priv);
 549 int iwl_scan_cancel(struct iwl_priv *priv);
 550 int iwl_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms);
 551 void iwl_force_scan_end(struct iwl_priv *priv);
 552 int iwl_mac_hw_scan(struct ieee80211_hw *hw,
 553                     struct ieee80211_vif *vif,
 554                     struct cfg80211_scan_request *req);
 555 void iwl_internal_short_hw_scan(struct iwl_priv *priv);
 556 int iwl_force_reset(struct iwl_priv *priv, int mode, bool external);
 557 u16 iwl_fill_probe_req(struct iwl_priv *priv, struct ieee80211_mgmt *frame,
 558                        const u8 *ta, const u8 *ie, int ie_len, int left);
 559 void iwl_setup_rx_scan_handlers(struct iwl_priv *priv);
 560 u16 iwl_get_active_dwell_time(struct iwl_priv *priv,
 561                               enum ieee80211_band band,
 562                               u8 n_probes);
 563 u16 iwl_get_passive_dwell_time(struct iwl_priv *priv,
 564                                enum ieee80211_band band,
 565                                struct ieee80211_vif *vif);
 566 void iwl_setup_scan_deferred_work(struct iwl_priv *priv);
 567 void iwl_cancel_scan_deferred_work(struct iwl_priv *priv);
 568
 569 /* For faster active scanning, scan will move to the next channel if fewer than
 570  * PLCP_QUIET_THRESH packets are heard on this channel within
 571  * ACTIVE_QUIET_TIME after sending probe request.  This shortens the dwell
 572  * time if it's a quiet channel (nothing responded to our probe, and there's
 573  * no other traffic).
 574  * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
 575 #define IWL_ACTIVE_QUIET_TIME       cpu_to_le16(10)  /* msec */
 576 #define IWL_PLCP_QUIET_THRESH       cpu_to_le16(1)  /* packets */
 577
 578 #define IWL_SCAN_CHECK_WATCHDOG         (HZ * 7)
 579
 580 /*****************************************************
 581  *   S e n d i n g     H o s t     C o m m a n d s   *
 582  *****************************************************/
 583
 584 const char *get_cmd_string(u8 cmd);
 585 int __must_check iwl_send_cmd_sync(struct iwl_priv *priv,
 586                                    struct iwl_host_cmd *cmd);
 587 int iwl_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 588 int __must_check iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id,
 589                                   u16 len, const void *data);
 590 int iwl_send_cmd_pdu_async(struct iwl_priv *priv, u8 id, u16 len,
 591                            const void *data,
 592                            void (*callback)(struct iwl_priv *priv,
 593                                             struct iwl_device_cmd *cmd,
 594                                             struct iwl_rx_packet *pkt));
 595
 596 int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 597
 598
 599 /*****************************************************
 600  * PCI                                               *
 601  *****************************************************/
 602 irqreturn_t iwl_isr_legacy(int irq, void *data);
 603
 604 static inline u16 iwl_pcie_link_ctl(struct iwl_priv *priv)
 605 {
 606         int pos;
 607         u16 pci_lnk_ctl;
 608         pos = pci_find_capability(priv->pci_dev, PCI_CAP_ID_EXP);
 609         pci_read_config_word(priv->pci_dev, pos + PCI_EXP_LNKCTL, &pci_lnk_ctl);
 610         return pci_lnk_ctl;
 611 }
 612
 613 void iwl_bg_monitor_recover(unsigned long data);
 614 u32 iwl_usecs_to_beacons(struct iwl_priv *priv, u32 usec, u32 beacon_interval);
 615 __le32 iwl_add_beacon_time(struct iwl_priv *priv, u32 base,
 616                            u32 addon, u32 beacon_interval);
 617
 618 #ifdef CONFIG_PM
 619 int iwl_pci_suspend(struct pci_dev *pdev, pm_message_t state);
 620 int iwl_pci_resume(struct pci_dev *pdev);
 621 #endif /* CONFIG_PM */
 622
 623 /*****************************************************
 624 *  Error Handling Debugging
 625 ******************************************************/
 626 void iwl_dump_nic_error_log(struct iwl_priv *priv);
 627 int iwl_dump_nic_event_log(struct iwl_priv *priv,
 628                            bool full_log, char **buf, bool display);
 629 #ifdef CONFIG_IWLWIFI_DEBUG
 630 void iwl_print_rx_config_cmd(struct iwl_priv *priv,
 631                              struct iwl_rxon_context *ctx);
 632 #else
 633 static inline void iwl_print_rx_config_cmd(struct iwl_priv *priv,
 634                                            struct iwl_rxon_context *ctx)
 635 {
 636 }
 637 #endif
 638
 639 void iwl_clear_isr_stats(struct iwl_priv *priv);
 640
 641 /*****************************************************
 642 *  GEOS
 643 ******************************************************/
 644 int iwlcore_init_geos(struct iwl_priv *priv);
 645 void iwlcore_free_geos(struct iwl_priv *priv);
 646
 647 /*************** DRIVER STATUS FUNCTIONS   *****/
 648
 649 #define STATUS_HCMD_ACTIVE      0       /* host command in progress */
 650 /* 1 is unused (used to be STATUS_HCMD_SYNC_ACTIVE) */
 651 #define STATUS_INT_ENABLED      2
 652 #define STATUS_RF_KILL_HW       3
 653 #define STATUS_CT_KILL          4
 654 #define STATUS_INIT             5
 655 #define STATUS_ALIVE            6
 656 #define STATUS_READY            7
 657 #define STATUS_TEMPERATURE      8
 658 #define STATUS_GEO_CONFIGURED   9
 659 #define STATUS_EXIT_PENDING     10
 660 #define STATUS_STATISTICS       12
 661 #define STATUS_SCANNING         13
 662 #define STATUS_SCAN_ABORTING    14
 663 #define STATUS_SCAN_HW          15
 664 #define STATUS_POWER_PMI        16
 665 #define STATUS_FW_ERROR         17
 666
 667
 668 static inline int iwl_is_ready(struct iwl_priv *priv)
 669 {
 670         /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
 671          * set but EXIT_PENDING is not */
 672         return test_bit(STATUS_READY, &priv->status) &&
 673                test_bit(STATUS_GEO_CONFIGURED, &priv->status) &&
 674                !test_bit(STATUS_EXIT_PENDING, &priv->status);
 675 }
 676
 677 static inline int iwl_is_alive(struct iwl_priv *priv)
 678 {
 679         return test_bit(STATUS_ALIVE, &priv->status);
 680 }
 681
 682 static inline int iwl_is_init(struct iwl_priv *priv)
 683 {
 684         return test_bit(STATUS_INIT, &priv->status);
 685 }
 686
 687 static inline int iwl_is_rfkill_hw(struct iwl_priv *priv)
 688 {
 689         return test_bit(STATUS_RF_KILL_HW, &priv->status);
 690 }
 691
 692 static inline int iwl_is_rfkill(struct iwl_priv *priv)
 693 {
 694         return iwl_is_rfkill_hw(priv);
 695 }
 696
 697 static inline int iwl_is_ctkill(struct iwl_priv *priv)
 698 {
 699         return test_bit(STATUS_CT_KILL, &priv->status);
 700 }
 701
 702 static inline int iwl_is_ready_rf(struct iwl_priv *priv)
 703 {
 704
 705         if (iwl_is_rfkill(priv))
 706                 return 0;
 707
 708         return iwl_is_ready(priv);
 709 }
 710
 711 extern void iwl_send_bt_config(struct iwl_priv *priv);
 712 extern int iwl_send_statistics_request(struct iwl_priv *priv,
 713                                        u8 flags, bool clear);
 714 void iwl_apm_stop(struct iwl_priv *priv);
 715 int iwl_apm_init(struct iwl_priv *priv);
 716
 717 int iwl_send_rxon_timing(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 718 static inline int iwl_send_rxon_assoc(struct iwl_priv *priv,
 719                                       struct iwl_rxon_context *ctx)
 720 {
 721         return priv->cfg->ops->hcmd->rxon_assoc(priv, ctx);
 722 }
 723 static inline int iwlcore_commit_rxon(struct iwl_priv *priv,
 724                                       struct iwl_rxon_context *ctx)
 725 {
 726         return priv->cfg->ops->hcmd->commit_rxon(priv, ctx);
 727 }
 728 static inline void iwlcore_config_ap(struct iwl_priv *priv,
 729                                      struct ieee80211_vif *vif)
 730 {
 731         priv->cfg->ops->lib->config_ap(priv, vif);
 732 }
 733 static inline const struct ieee80211_supported_band *iwl_get_hw_mode(
 734                         struct iwl_priv *priv, enum ieee80211_band band)
 735 {
 736         return priv->hw->wiphy->bands[band];
 737 }
 738
 739 extern bool bt_coex_active;
 740 extern bool bt_siso_mode;
 741
 742 #endif /* __iwl_core_h__ */