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         irqreturn_t (*isr) (int irq, void *data);
 197
 198         /* eeprom operations (as defined in iwl-eeprom.h) */
 199         struct iwl_eeprom_ops eeprom_ops;
 200
 201         /* temperature */
 202         struct iwl_temp_ops temp_ops;
 203         /* recover from tx queue stall */
 204         void (*recover_from_tx_stall)(unsigned long data);
 205         /* check for plcp health */
 206         bool (*check_plcp_health)(struct iwl_priv *priv,
 207                                         struct iwl_rx_packet *pkt);
 208         /* check for ack health */
 209         bool (*check_ack_health)(struct iwl_priv *priv,
 210                                         struct iwl_rx_packet *pkt);
 211         int (*txfifo_flush)(struct iwl_priv *priv, u16 flush_control);
 212         void (*dev_txfifo_flush)(struct iwl_priv *priv, u16 flush_control);
 213
 214         struct iwl_debugfs_ops debugfs_ops;
 215
 216         /* thermal throttling */
 217         struct iwl_tt_ops tt_ops;
 218 };
 219
 220 struct iwl_led_ops {
 221         int (*cmd)(struct iwl_priv *priv, struct iwl_led_cmd *led_cmd);
 222         int (*on)(struct iwl_priv *priv);
 223         int (*off)(struct iwl_priv *priv);
 224 };
 225
 226 /* NIC specific ops */
 227 struct iwl_nic_ops {
 228         void (*additional_nic_config)(struct iwl_priv *priv);
 229 };
 230
 231 struct iwl_legacy_ops {
 232         void (*post_associate)(struct iwl_priv *priv);
 233         void (*config_ap)(struct iwl_priv *priv);
 234         /* station management */
 235         int (*update_bcast_stations)(struct iwl_priv *priv);
 236         int (*manage_ibss_station)(struct iwl_priv *priv,
 237                                    struct ieee80211_vif *vif, bool add);
 238 };
 239
 240 struct iwl_ops {
 241         const struct iwl_lib_ops *lib;
 242         const struct iwl_hcmd_ops *hcmd;
 243         const struct iwl_hcmd_utils_ops *utils;
 244         const struct iwl_led_ops *led;
 245         const struct iwl_nic_ops *nic;
 246         const struct iwl_legacy_ops *legacy;
 247         const struct ieee80211_ops *ieee80211_ops;
 248 };
 249
 250 struct iwl_mod_params {
 251         int sw_crypto;          /* def: 0 = using hardware encryption */
 252         int disable_hw_scan;    /* def: 0 = use h/w scan */
 253         int num_of_queues;      /* def: HW dependent */
 254         int disable_11n;        /* def: 0 = 11n capabilities enabled */
 255         int amsdu_size_8K;      /* def: 1 = enable 8K amsdu size */
 256         int antenna;            /* def: 0 = both antennas (use diversity) */
 257         int restart_fw;         /* def: 1 = restart firmware */
 258 };
 259
 260 /*
 261  * @max_ll_items: max number of OTP blocks
 262  * @shadow_ram_support: shadow support for OTP memory
 263  * @led_compensation: compensate on the led on/off time per HW according
 264  *      to the deviation to achieve the desired led frequency.
 265  *      The detail algorithm is described in iwl-led.c
 266  * @chain_noise_num_beacons: number of beacons used to compute chain noise
 267  * @adv_thermal_throttle: support advance thermal throttle
 268  * @support_ct_kill_exit: support ct kill exit condition
 269  * @support_wimax_coexist: support wimax/wifi co-exist
 270  * @plcp_delta_threshold: plcp error rate threshold used to trigger
 271  *      radio tuning when there is a high receiving plcp error rate
 272  * @chain_noise_scale: default chain noise scale used for gain computation
 273  * @monitor_recover_period: default timer used to check stuck queues
 274  * @temperature_kelvin: temperature report by uCode in kelvin
 275  * @max_event_log_size: size of event log buffer size for ucode event logging
 276  * @tx_power_by_driver: tx power calibration performed by driver
 277  *      instead of uCode
 278  * @ucode_tracing: support ucode continuous tracing
 279  * @sensitivity_calib_by_driver: driver has the capability to perform
 280  *      sensitivity calibration operation
 281  * @chain_noise_calib_by_driver: driver has the capability to perform
 282  *      chain noise calibration operation
 283 */
 284 struct iwl_base_params {
 285         int eeprom_size;
 286         int num_of_queues;      /* def: HW dependent */
 287         int num_of_ampdu_queues;/* def: HW dependent */
 288         /* for iwl_apm_init() */
 289         u32 pll_cfg_val;
 290         bool set_l0s;
 291         bool use_bsm;
 292
 293         bool use_isr_legacy;
 294         const u16 max_ll_items;
 295         const bool shadow_ram_support;
 296         u16 led_compensation;
 297         const bool broken_powersave;
 298         int chain_noise_num_beacons;
 299         const bool supports_idle;
 300         bool adv_thermal_throttle;
 301         bool support_ct_kill_exit;
 302         const bool support_wimax_coexist;
 303         u8 plcp_delta_threshold;
 304         s32 chain_noise_scale;
 305         /* timer period for monitor the driver queues */
 306         u32 monitor_recover_period;
 307         bool temperature_kelvin;
 308         u32 max_event_log_size;
 309         const bool tx_power_by_driver;
 310         const bool ucode_tracing;
 311         const bool sensitivity_calib_by_driver;
 312         const bool chain_noise_calib_by_driver;
 313 };
 314 /*
 315  * @advanced_bt_coexist: support advanced bt coexist
 316  * @bt_init_traffic_load: specify initial bt traffic load
 317  * @bt_prio_boost: default bt priority boost value
 318  * @bt_statistics: use BT version of statistics notification
 319  * @agg_time_limit: maximum number of uSec in aggregation
 320  * @ampdu_factor: Maximum A-MPDU length factor
 321  * @ampdu_density: Minimum A-MPDU spacing
 322 */
 323 struct iwl_bt_params {
 324         bool advanced_bt_coexist;
 325         u8 bt_init_traffic_load;
 326         u8 bt_prio_boost;
 327         const bool bt_statistics;
 328         u16 agg_time_limit;
 329         u8 ampdu_factor;
 330         u8 ampdu_density;
 331 };
 332 /*
 333  * @use_rts_for_aggregation: use rts/cts protection for HT traffic
 334 */
 335 struct iwl_ht_params {
 336         const bool ht_greenfield_support; /* if used set to true */
 337         bool use_rts_for_aggregation;
 338 };
 339
 340 /**
 341  * struct iwl_cfg
 342  * @fw_name_pre: Firmware filename prefix. The api version and extension
 343  *      (.ucode) will be added to filename before loading from disk. The
 344  *      filename is constructed as fw_name_pre<api>.ucode.
 345  * @ucode_api_max: Highest version of uCode API supported by driver.
 346  * @ucode_api_min: Lowest version of uCode API supported by driver.
 347  * @pa_type: used by 6000 series only to identify the type of Power Amplifier
 348  * @need_dc_calib: need to perform init dc calibration
 349  * @need_temp_offset_calib: need to perform temperature offset calibration
 350  * @scan_antennas: available antenna for scan operation
 351  *
 352  * We enable the driver to be backward compatible wrt API version. The
 353  * driver specifies which APIs it supports (with @ucode_api_max being the
 354  * highest and @ucode_api_min the lowest). Firmware will only be loaded if
 355  * it has a supported API version. The firmware's API version will be
 356  * stored in @iwl_priv, enabling the driver to make runtime changes based
 357  * on firmware version used.
 358  *
 359  * For example,
 360  * if (IWL_UCODE_API(priv->ucode_ver) >= 2) {
 361  *      Driver interacts with Firmware API version >= 2.
 362  * } else {
 363  *      Driver interacts with Firmware API version 1.
 364  * }
 365  *
 366  * The ideal usage of this infrastructure is to treat a new ucode API
 367  * release as a new hardware revision. That is, through utilizing the
 368  * iwl_hcmd_utils_ops etc. we accommodate different command structures
 369  * and flows between hardware versions (4965/5000) as well as their API
 370  * versions.
 371  *
 372  */
 373 struct iwl_cfg {
 374         /* params specific to an individual device within a device family */
 375         const char *name;
 376         const char *fw_name_pre;
 377         const unsigned int ucode_api_max;
 378         const unsigned int ucode_api_min;
 379         u8   valid_tx_ant;
 380         u8   valid_rx_ant;
 381         unsigned int sku;
 382         u16  eeprom_ver;
 383         u16  eeprom_calib_ver;
 384         const struct iwl_ops *ops;
 385         /* module based parameters which can be set from modprobe cmd */
 386         const struct iwl_mod_params *mod_params;
 387         /* params not likely to change within a device family */
 388         struct iwl_base_params *base_params;
 389         /* params likely to change within a device family */
 390         struct iwl_ht_params *ht_params;
 391         struct iwl_bt_params *bt_params;
 392         enum iwl_pa_type pa_type;         /* if used set to IWL_PA_SYSTEM */
 393         const bool need_dc_calib;         /* if used set to true */
 394         const bool need_temp_offset_calib; /* if used set to true */
 395         u8 scan_rx_antennas[IEEE80211_NUM_BANDS];
 396         u8 scan_tx_antennas[IEEE80211_NUM_BANDS];
 397 };
 398
 399 /***************************
 400  *   L i b                 *
 401  ***************************/
 402
 403 struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg);
 404 int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
 405                     const struct ieee80211_tx_queue_params *params);
 406 int iwl_mac_tx_last_beacon(struct ieee80211_hw *hw);
 407 void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
 408                            int hw_decrypt);
 409 int iwl_check_rxon_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 410 int iwl_full_rxon_required(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 411 int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch,
 412                          struct iwl_rxon_context *ctx);
 413 void iwl_set_flags_for_band(struct iwl_priv *priv,
 414                             struct iwl_rxon_context *ctx,
 415                             enum ieee80211_band band,
 416                             struct ieee80211_vif *vif);
 417 u8 iwl_get_single_channel_number(struct iwl_priv *priv,
 418                                   enum ieee80211_band band);
 419 void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf);
 420 bool iwl_is_ht40_tx_allowed(struct iwl_priv *priv,
 421                             struct iwl_rxon_context *ctx,
 422                             struct ieee80211_sta_ht_cap *ht_cap);
 423 void iwl_connection_init_rx_config(struct iwl_priv *priv,
 424                                    struct iwl_rxon_context *ctx);
 425 void iwl_set_rate(struct iwl_priv *priv);
 426 int iwl_set_decrypted_flag(struct iwl_priv *priv,
 427                            struct ieee80211_hdr *hdr,
 428                            u32 decrypt_res,
 429                            struct ieee80211_rx_status *stats);
 430 void iwl_irq_handle_error(struct iwl_priv *priv);
 431 int iwl_mac_add_interface(struct ieee80211_hw *hw,
 432                           struct ieee80211_vif *vif);
 433 void iwl_mac_remove_interface(struct ieee80211_hw *hw,
 434                               struct ieee80211_vif *vif);
 435 int iwl_mac_change_interface(struct ieee80211_hw *hw,
 436                              struct ieee80211_vif *vif,
 437                              enum nl80211_iftype newtype, bool newp2p);
 438 int iwl_alloc_txq_mem(struct iwl_priv *priv);
 439 void iwl_free_txq_mem(struct iwl_priv *priv);
 440 void iwlcore_tx_cmd_protection(struct iwl_priv *priv,
 441                                struct ieee80211_tx_info *info,
 442                                __le16 fc, __le32 *tx_flags);
 443 #ifdef CONFIG_IWLWIFI_DEBUGFS
 444 int iwl_alloc_traffic_mem(struct iwl_priv *priv);
 445 void iwl_free_traffic_mem(struct iwl_priv *priv);
 446 void iwl_reset_traffic_log(struct iwl_priv *priv);
 447 void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
 448                                 u16 length, struct ieee80211_hdr *header);
 449 void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
 450                                 u16 length, struct ieee80211_hdr *header);
 451 const char *get_mgmt_string(int cmd);
 452 const char *get_ctrl_string(int cmd);
 453 void iwl_clear_traffic_stats(struct iwl_priv *priv);
 454 void iwl_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc,
 455                       u16 len);
 456 #else
 457 static inline int iwl_alloc_traffic_mem(struct iwl_priv *priv)
 458 {
 459         return 0;
 460 }
 461 static inline void iwl_free_traffic_mem(struct iwl_priv *priv)
 462 {
 463 }
 464 static inline void iwl_reset_traffic_log(struct iwl_priv *priv)
 465 {
 466 }
 467 static inline void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
 468                       u16 length, struct ieee80211_hdr *header)
 469 {
 470 }
 471 static inline void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
 472                       u16 length, struct ieee80211_hdr *header)
 473 {
 474 }
 475 static inline void iwl_update_stats(struct iwl_priv *priv, bool is_tx,
 476                                     __le16 fc, u16 len)
 477 {
 478         struct traffic_stats    *stats;
 479
 480         if (is_tx)
 481                 stats = &priv->tx_stats;
 482         else
 483                 stats = &priv->rx_stats;
 484
 485         if (ieee80211_is_data(fc)) {
 486                 /* data */
 487                 stats->data_bytes += len;
 488         }
 489         iwl_leds_background(priv);
 490 }
 491 #endif
 492 /*****************************************************
 493  * RX handlers.
 494  * **************************************************/
 495 void iwl_rx_pm_sleep_notif(struct iwl_priv *priv,
 496                            struct iwl_rx_mem_buffer *rxb);
 497 void iwl_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
 498                                       struct iwl_rx_mem_buffer *rxb);
 499 void iwl_rx_reply_error(struct iwl_priv *priv,
 500                         struct iwl_rx_mem_buffer *rxb);
 501
 502 /*****************************************************
 503 * RX
 504 ******************************************************/
 505 void iwl_cmd_queue_free(struct iwl_priv *priv);
 506 int iwl_rx_queue_alloc(struct iwl_priv *priv);
 507 void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv,
 508                                   struct iwl_rx_queue *q);
 509 int iwl_rx_queue_space(const struct iwl_rx_queue *q);
 510 void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
 511 /* Handlers */
 512 void iwl_rx_spectrum_measure_notif(struct iwl_priv *priv,
 513                                           struct iwl_rx_mem_buffer *rxb);
 514 void iwl_recover_from_statistics(struct iwl_priv *priv,
 515                                 struct iwl_rx_packet *pkt);
 516 void iwl_chswitch_done(struct iwl_priv *priv, bool is_success);
 517 void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
 518
 519 /* TX helpers */
 520
 521 /*****************************************************
 522 * TX
 523 ******************************************************/
 524 void iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq);
 525 int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
 526                       int slots_num, u32 txq_id);
 527 void iwl_tx_queue_reset(struct iwl_priv *priv, struct iwl_tx_queue *txq,
 528                         int slots_num, u32 txq_id);
 529 void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id);
 530 /*****************************************************
 531  * TX power
 532  ****************************************************/
 533 int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force);
 534
 535 /*******************************************************************************
 536  * Rate
 537  ******************************************************************************/
 538
 539 u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv,
 540                             struct iwl_rxon_context *ctx);
 541
 542 /*******************************************************************************
 543  * Scanning
 544  ******************************************************************************/
 545 void iwl_init_scan_params(struct iwl_priv *priv);
 546 int iwl_scan_cancel(struct iwl_priv *priv);
 547 int iwl_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms);
 548 void iwl_force_scan_end(struct iwl_priv *priv);
 549 int iwl_mac_hw_scan(struct ieee80211_hw *hw,
 550                     struct ieee80211_vif *vif,
 551                     struct cfg80211_scan_request *req);
 552 void iwl_internal_short_hw_scan(struct iwl_priv *priv);
 553 int iwl_force_reset(struct iwl_priv *priv, int mode, bool external);
 554 u16 iwl_fill_probe_req(struct iwl_priv *priv, struct ieee80211_mgmt *frame,
 555                        const u8 *ta, const u8 *ie, int ie_len, int left);
 556 void iwl_setup_rx_scan_handlers(struct iwl_priv *priv);
 557 u16 iwl_get_active_dwell_time(struct iwl_priv *priv,
 558                               enum ieee80211_band band,
 559                               u8 n_probes);
 560 u16 iwl_get_passive_dwell_time(struct iwl_priv *priv,
 561                                enum ieee80211_band band,
 562                                struct ieee80211_vif *vif);
 563 void iwl_setup_scan_deferred_work(struct iwl_priv *priv);
 564 void iwl_cancel_scan_deferred_work(struct iwl_priv *priv);
 565
 566 /* For faster active scanning, scan will move to the next channel if fewer than
 567  * PLCP_QUIET_THRESH packets are heard on this channel within
 568  * ACTIVE_QUIET_TIME after sending probe request.  This shortens the dwell
 569  * time if it's a quiet channel (nothing responded to our probe, and there's
 570  * no other traffic).
 571  * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
 572 #define IWL_ACTIVE_QUIET_TIME       cpu_to_le16(10)  /* msec */
 573 #define IWL_PLCP_QUIET_THRESH       cpu_to_le16(1)  /* packets */
 574
 575 #define IWL_SCAN_CHECK_WATCHDOG         (HZ * 7)
 576
 577 /*****************************************************
 578  *   S e n d i n g     H o s t     C o m m a n d s   *
 579  *****************************************************/
 580
 581 const char *get_cmd_string(u8 cmd);
 582 int __must_check iwl_send_cmd_sync(struct iwl_priv *priv,
 583                                    struct iwl_host_cmd *cmd);
 584 int iwl_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 585 int __must_check iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id,
 586                                   u16 len, const void *data);
 587 int iwl_send_cmd_pdu_async(struct iwl_priv *priv, u8 id, u16 len,
 588                            const void *data,
 589                            void (*callback)(struct iwl_priv *priv,
 590                                             struct iwl_device_cmd *cmd,
 591                                             struct iwl_rx_packet *pkt));
 592
 593 int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 594
 595
 596 /*****************************************************
 597  * PCI                                               *
 598  *****************************************************/
 599
 600 static inline u16 iwl_pcie_link_ctl(struct iwl_priv *priv)
 601 {
 602         int pos;
 603         u16 pci_lnk_ctl;
 604         pos = pci_find_capability(priv->pci_dev, PCI_CAP_ID_EXP);
 605         pci_read_config_word(priv->pci_dev, pos + PCI_EXP_LNKCTL, &pci_lnk_ctl);
 606         return pci_lnk_ctl;
 607 }
 608
 609 void iwl_bg_monitor_recover(unsigned long data);
 610 u32 iwl_usecs_to_beacons(struct iwl_priv *priv, u32 usec, u32 beacon_interval);
 611 __le32 iwl_add_beacon_time(struct iwl_priv *priv, u32 base,
 612                            u32 addon, u32 beacon_interval);
 613
 614 #ifdef CONFIG_PM
 615 int iwl_pci_suspend(struct device *device);
 616 int iwl_pci_resume(struct device *device);
 617 extern const struct dev_pm_ops iwl_pm_ops;
 618
 619 #define IWL_PM_OPS      (&iwl_pm_ops)
 620
 621 #else /* !CONFIG_PM */
 622
 623 #define IWL_PM_OPS      NULL
 624
 625 #endif /* !CONFIG_PM */
 626
 627 /*****************************************************
 628 *  Error Handling Debugging
 629 ******************************************************/
 630 void iwl_dump_nic_error_log(struct iwl_priv *priv);
 631 int iwl_dump_nic_event_log(struct iwl_priv *priv,
 632                            bool full_log, char **buf, bool display);
 633 #ifdef CONFIG_IWLWIFI_DEBUG
 634 void iwl_print_rx_config_cmd(struct iwl_priv *priv,
 635                              struct iwl_rxon_context *ctx);
 636 #else
 637 static inline void iwl_print_rx_config_cmd(struct iwl_priv *priv,
 638                                            struct iwl_rxon_context *ctx)
 639 {
 640 }
 641 #endif
 642
 643 void iwl_clear_isr_stats(struct iwl_priv *priv);
 644
 645 /*****************************************************
 646 *  GEOS
 647 ******************************************************/
 648 int iwlcore_init_geos(struct iwl_priv *priv);
 649 void iwlcore_free_geos(struct iwl_priv *priv);
 650
 651 /*************** DRIVER STATUS FUNCTIONS   *****/
 652
 653 #define STATUS_HCMD_ACTIVE      0       /* host command in progress */
 654 /* 1 is unused (used to be STATUS_HCMD_SYNC_ACTIVE) */
 655 #define STATUS_INT_ENABLED      2
 656 #define STATUS_RF_KILL_HW       3
 657 #define STATUS_CT_KILL          4
 658 #define STATUS_INIT             5
 659 #define STATUS_ALIVE            6
 660 #define STATUS_READY            7
 661 #define STATUS_TEMPERATURE      8
 662 #define STATUS_GEO_CONFIGURED   9
 663 #define STATUS_EXIT_PENDING     10
 664 #define STATUS_STATISTICS       12
 665 #define STATUS_SCANNING         13
 666 #define STATUS_SCAN_ABORTING    14
 667 #define STATUS_SCAN_HW          15
 668 #define STATUS_POWER_PMI        16
 669 #define STATUS_FW_ERROR         17
 670
 671
 672 static inline int iwl_is_ready(struct iwl_priv *priv)
 673 {
 674         /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
 675          * set but EXIT_PENDING is not */
 676         return test_bit(STATUS_READY, &priv->status) &&
 677                test_bit(STATUS_GEO_CONFIGURED, &priv->status) &&
 678                !test_bit(STATUS_EXIT_PENDING, &priv->status);
 679 }
 680
 681 static inline int iwl_is_alive(struct iwl_priv *priv)
 682 {
 683         return test_bit(STATUS_ALIVE, &priv->status);
 684 }
 685
 686 static inline int iwl_is_init(struct iwl_priv *priv)
 687 {
 688         return test_bit(STATUS_INIT, &priv->status);
 689 }
 690
 691 static inline int iwl_is_rfkill_hw(struct iwl_priv *priv)
 692 {
 693         return test_bit(STATUS_RF_KILL_HW, &priv->status);
 694 }
 695
 696 static inline int iwl_is_rfkill(struct iwl_priv *priv)
 697 {
 698         return iwl_is_rfkill_hw(priv);
 699 }
 700
 701 static inline int iwl_is_ctkill(struct iwl_priv *priv)
 702 {
 703         return test_bit(STATUS_CT_KILL, &priv->status);
 704 }
 705
 706 static inline int iwl_is_ready_rf(struct iwl_priv *priv)
 707 {
 708
 709         if (iwl_is_rfkill(priv))
 710                 return 0;
 711
 712         return iwl_is_ready(priv);
 713 }
 714
 715 extern void iwl_send_bt_config(struct iwl_priv *priv);
 716 extern int iwl_send_statistics_request(struct iwl_priv *priv,
 717                                        u8 flags, bool clear);
 718 void iwl_apm_stop(struct iwl_priv *priv);
 719 int iwl_apm_init(struct iwl_priv *priv);
 720
 721 int iwl_send_rxon_timing(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 722 static inline int iwl_send_rxon_assoc(struct iwl_priv *priv,
 723                                       struct iwl_rxon_context *ctx)
 724 {
 725         return priv->cfg->ops->hcmd->rxon_assoc(priv, ctx);
 726 }
 727 static inline int iwlcore_commit_rxon(struct iwl_priv *priv,
 728                                       struct iwl_rxon_context *ctx)
 729 {
 730         return priv->cfg->ops->hcmd->commit_rxon(priv, ctx);
 731 }
 732 static inline const struct ieee80211_supported_band *iwl_get_hw_mode(
 733                         struct iwl_priv *priv, enum ieee80211_band band)
 734 {
 735         return priv->hw->wiphy->bands[band];
 736 }
 737
 738 extern bool bt_coex_active;
 739 extern bool bt_siso_mode;
 740
 741 #endif /* __iwl_core_h__ */