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 - 2011 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 - 2011 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 #include "iwl-dev.h"
  67
  68 /************************
  69  * forward declarations *
  70  ************************/
  71 struct iwl_host_cmd;
  72 struct iwl_cmd;
  73
  74
  75 #define IWLWIFI_VERSION "in-tree:"
  76 #define DRV_COPYRIGHT   "Copyright(c) 2003-2011 Intel Corporation"
  77 #define DRV_AUTHOR     "<ilw@linux.intel.com>"
  78
  79 #define IWL_PCI_DEVICE(dev, subdev, cfg) \
  80         .vendor = PCI_VENDOR_ID_INTEL,  .device = (dev), \
  81         .subvendor = PCI_ANY_ID, .subdevice = (subdev), \
  82         .driver_data = (kernel_ulong_t)&(cfg)
  83
  84 #define TIME_UNIT               1024
  85
  86 #define IWL_SKU_G       0x1
  87 #define IWL_SKU_A       0x2
  88 #define IWL_SKU_N       0x8
  89
  90 #define IWL_CMD(x) case x: return #x
  91
  92 struct iwl_hcmd_ops {
  93         int (*rxon_assoc)(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
  94         int (*commit_rxon)(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
  95         void (*set_rxon_chain)(struct iwl_priv *priv,
  96                                struct iwl_rxon_context *ctx);
  97         int (*set_tx_ant)(struct iwl_priv *priv, u8 valid_tx_ant);
  98         void (*send_bt_config)(struct iwl_priv *priv);
  99         int (*set_pan_params)(struct iwl_priv *priv);
 100 };
 101
 102 struct iwl_hcmd_utils_ops {
 103         u16 (*get_hcmd_size)(u8 cmd_id, u16 len);
 104         u16 (*build_addsta_hcmd)(const struct iwl_addsta_cmd *cmd, u8 *data);
 105         void (*gain_computation)(struct iwl_priv *priv,
 106                         u32 *average_noise,
 107                         u16 min_average_noise_antennat_i,
 108                         u32 min_average_noise,
 109                         u8 default_chain);
 110         void (*chain_noise_reset)(struct iwl_priv *priv);
 111         void (*tx_cmd_protection)(struct iwl_priv *priv,
 112                                   struct ieee80211_tx_info *info,
 113                                   __le16 fc, __le32 *tx_flags);
 114         int  (*calc_rssi)(struct iwl_priv *priv,
 115                           struct iwl_rx_phy_res *rx_resp);
 116         int (*request_scan)(struct iwl_priv *priv, struct ieee80211_vif *vif);
 117         void (*post_scan)(struct iwl_priv *priv);
 118 };
 119
 120 struct iwl_apm_ops {
 121         int (*init)(struct iwl_priv *priv);
 122         void (*config)(struct iwl_priv *priv);
 123 };
 124
 125 struct iwl_debugfs_ops {
 126         ssize_t (*rx_stats_read)(struct file *file, char __user *user_buf,
 127                                  size_t count, loff_t *ppos);
 128         ssize_t (*tx_stats_read)(struct file *file, char __user *user_buf,
 129                                  size_t count, loff_t *ppos);
 130         ssize_t (*general_stats_read)(struct file *file, char __user *user_buf,
 131                                       size_t count, loff_t *ppos);
 132         ssize_t (*bt_stats_read)(struct file *file, char __user *user_buf,
 133                                  size_t count, loff_t *ppos);
 134         ssize_t (*reply_tx_error)(struct file *file, char __user *user_buf,
 135                                  size_t count, loff_t *ppos);
 136 };
 137
 138 struct iwl_temp_ops {
 139         void (*temperature)(struct iwl_priv *priv);
 140 };
 141
 142 struct iwl_tt_ops {
 143         bool (*lower_power_detection)(struct iwl_priv *priv);
 144         u8 (*tt_power_mode)(struct iwl_priv *priv);
 145         bool (*ct_kill_check)(struct iwl_priv *priv);
 146 };
 147
 148 struct iwl_lib_ops {
 149         /* set hw dependent parameters */
 150         int (*set_hw_params)(struct iwl_priv *priv);
 151         /* Handling TX */
 152         void (*txq_update_byte_cnt_tbl)(struct iwl_priv *priv,
 153                                         struct iwl_tx_queue *txq,
 154                                         u16 byte_cnt);
 155         void (*txq_inval_byte_cnt_tbl)(struct iwl_priv *priv,
 156                                        struct iwl_tx_queue *txq);
 157         void (*txq_set_sched)(struct iwl_priv *priv, u32 mask);
 158         int (*txq_attach_buf_to_tfd)(struct iwl_priv *priv,
 159                                      struct iwl_tx_queue *txq,
 160                                      dma_addr_t addr,
 161                                      u16 len, u8 reset, u8 pad);
 162         void (*txq_free_tfd)(struct iwl_priv *priv,
 163                              struct iwl_tx_queue *txq);
 164         int (*txq_init)(struct iwl_priv *priv,
 165                         struct iwl_tx_queue *txq);
 166         /* setup Rx handler */
 167         void (*rx_handler_setup)(struct iwl_priv *priv);
 168         /* setup deferred work */
 169         void (*setup_deferred_work)(struct iwl_priv *priv);
 170         /* cancel deferred work */
 171         void (*cancel_deferred_work)(struct iwl_priv *priv);
 172         /* check validity of rtc data address */
 173         int (*is_valid_rtc_data_addr)(u32 addr);
 174         int (*set_channel_switch)(struct iwl_priv *priv,
 175                                   struct ieee80211_channel_switch *ch_switch);
 176         /* power management */
 177         struct iwl_apm_ops apm_ops;
 178
 179         /* power */
 180         int (*send_tx_power) (struct iwl_priv *priv);
 181         void (*update_chain_flags)(struct iwl_priv *priv);
 182
 183         /* eeprom operations (as defined in iwl-eeprom.h) */
 184         struct iwl_eeprom_ops eeprom_ops;
 185
 186         /* temperature */
 187         struct iwl_temp_ops temp_ops;
 188
 189         int (*txfifo_flush)(struct iwl_priv *priv, u16 flush_control);
 190         void (*dev_txfifo_flush)(struct iwl_priv *priv, u16 flush_control);
 191
 192         struct iwl_debugfs_ops debugfs_ops;
 193
 194         /* thermal throttling */
 195         struct iwl_tt_ops tt_ops;
 196 };
 197
 198 struct iwl_led_ops {
 199         int (*cmd)(struct iwl_priv *priv, struct iwl_led_cmd *led_cmd);
 200 };
 201
 202 /* NIC specific ops */
 203 struct iwl_nic_ops {
 204         void (*additional_nic_config)(struct iwl_priv *priv);
 205 };
 206
 207 struct iwl_legacy_ops {
 208         void (*post_associate)(struct iwl_priv *priv);
 209         void (*config_ap)(struct iwl_priv *priv);
 210         /* station management */
 211         int (*update_bcast_stations)(struct iwl_priv *priv);
 212         int (*manage_ibss_station)(struct iwl_priv *priv,
 213                                    struct ieee80211_vif *vif, bool add);
 214 };
 215
 216 struct iwl_ops {
 217         const struct iwl_lib_ops *lib;
 218         const struct iwl_hcmd_ops *hcmd;
 219         const struct iwl_hcmd_utils_ops *utils;
 220         const struct iwl_led_ops *led;
 221         const struct iwl_nic_ops *nic;
 222         const struct iwl_legacy_ops *legacy;
 223         const struct ieee80211_ops *ieee80211_ops;
 224 };
 225
 226 struct iwl_mod_params {
 227         int sw_crypto;          /* def: 0 = using hardware encryption */
 228         int num_of_queues;      /* def: HW dependent */
 229         int disable_11n;        /* def: 0 = 11n capabilities enabled */
 230         int amsdu_size_8K;      /* def: 1 = enable 8K amsdu size */
 231         int antenna;            /* def: 0 = both antennas (use diversity) */
 232         int restart_fw;         /* def: 1 = restart firmware */
 233         bool plcp_check;        /* def: true = enable plcp health check */
 234         bool ack_check;         /* def: false = disable ack health check */
 235 };
 236
 237 /*
 238  * @max_ll_items: max number of OTP blocks
 239  * @shadow_ram_support: shadow support for OTP memory
 240  * @led_compensation: compensate on the led on/off time per HW according
 241  *      to the deviation to achieve the desired led frequency.
 242  *      The detail algorithm is described in iwl-led.c
 243  * @chain_noise_num_beacons: number of beacons used to compute chain noise
 244  * @adv_thermal_throttle: support advance thermal throttle
 245  * @support_ct_kill_exit: support ct kill exit condition
 246  * @support_wimax_coexist: support wimax/wifi co-exist
 247  * @plcp_delta_threshold: plcp error rate threshold used to trigger
 248  *      radio tuning when there is a high receiving plcp error rate
 249  * @chain_noise_scale: default chain noise scale used for gain computation
 250  * @wd_timeout: TX queues watchdog timeout
 251  * @temperature_kelvin: temperature report by uCode in kelvin
 252  * @max_event_log_size: size of event log buffer size for ucode event logging
 253  * @tx_power_by_driver: tx power calibration performed by driver
 254  *      instead of uCode
 255  * @ucode_tracing: support ucode continuous tracing
 256  * @sensitivity_calib_by_driver: driver has the capability to perform
 257  *      sensitivity calibration operation
 258  * @chain_noise_calib_by_driver: driver has the capability to perform
 259  *      chain noise calibration operation
 260  * @shadow_reg_enable: HW shadhow register bit
 261  */
 262 struct iwl_base_params {
 263         int eeprom_size;
 264         int num_of_queues;      /* def: HW dependent */
 265         int num_of_ampdu_queues;/* def: HW dependent */
 266         /* for iwl_apm_init() */
 267         u32 pll_cfg_val;
 268         bool set_l0s;
 269
 270         const u16 max_ll_items;
 271         const bool shadow_ram_support;
 272         u16 led_compensation;
 273         const bool broken_powersave;
 274         int chain_noise_num_beacons;
 275         bool adv_thermal_throttle;
 276         bool support_ct_kill_exit;
 277         const bool support_wimax_coexist;
 278         u8 plcp_delta_threshold;
 279         s32 chain_noise_scale;
 280         unsigned int wd_timeout;
 281         bool temperature_kelvin;
 282         u32 max_event_log_size;
 283         const bool tx_power_by_driver;
 284         const bool ucode_tracing;
 285         const bool sensitivity_calib_by_driver;
 286         const bool chain_noise_calib_by_driver;
 287         const bool shadow_reg_enable;
 288 };
 289 /*
 290  * @advanced_bt_coexist: support advanced bt coexist
 291  * @bt_init_traffic_load: specify initial bt traffic load
 292  * @bt_prio_boost: default bt priority boost value
 293  * @bt_statistics: use BT version of statistics notification
 294  * @agg_time_limit: maximum number of uSec in aggregation
 295  * @ampdu_factor: Maximum A-MPDU length factor
 296  * @ampdu_density: Minimum A-MPDU spacing
 297  * @bt_sco_disable: uCode should not response to BT in SCO/ESCO mode
 298 */
 299 struct iwl_bt_params {
 300         bool advanced_bt_coexist;
 301         u8 bt_init_traffic_load;
 302         u8 bt_prio_boost;
 303         const bool bt_statistics;
 304         u16 agg_time_limit;
 305         u8 ampdu_factor;
 306         u8 ampdu_density;
 307         bool bt_sco_disable;
 308         bool bt_session_2;
 309 };
 310 /*
 311  * @use_rts_for_aggregation: use rts/cts protection for HT traffic
 312 */
 313 struct iwl_ht_params {
 314         const bool ht_greenfield_support; /* if used set to true */
 315         bool use_rts_for_aggregation;
 316 };
 317
 318 /**
 319  * struct iwl_cfg
 320  * @fw_name_pre: Firmware filename prefix. The api version and extension
 321  *      (.ucode) will be added to filename before loading from disk. The
 322  *      filename is constructed as fw_name_pre<api>.ucode.
 323  * @ucode_api_max: Highest version of uCode API supported by driver.
 324  * @ucode_api_min: Lowest version of uCode API supported by driver.
 325  * @pa_type: used by 6000 series only to identify the type of Power Amplifier
 326  * @need_dc_calib: need to perform init dc calibration
 327  * @need_temp_offset_calib: need to perform temperature offset calibration
 328  * @scan_antennas: available antenna for scan operation
 329  * @led_mode: 0=blinking, 1=On(RF On)/Off(RF Off)
 330  * @adv_pm: advance power management
 331  * @rx_with_siso_diversity: 1x1 device with rx antenna diversity
 332  * @internal_wimax_coex: internal wifi/wimax combo device
 333  * @iq_invert: I/Q inversion
 334  * @disable_otp_refresh: disable OTP refresh current limit
 335  *
 336  * We enable the driver to be backward compatible wrt API version. The
 337  * driver specifies which APIs it supports (with @ucode_api_max being the
 338  * highest and @ucode_api_min the lowest). Firmware will only be loaded if
 339  * it has a supported API version. The firmware's API version will be
 340  * stored in @iwl_priv, enabling the driver to make runtime changes based
 341  * on firmware version used.
 342  *
 343  * For example,
 344  * if (IWL_UCODE_API(priv->ucode_ver) >= 2) {
 345  *      Driver interacts with Firmware API version >= 2.
 346  * } else {
 347  *      Driver interacts with Firmware API version 1.
 348  * }
 349  *
 350  * The ideal usage of this infrastructure is to treat a new ucode API
 351  * release as a new hardware revision. That is, through utilizing the
 352  * iwl_hcmd_utils_ops etc. we accommodate different command structures
 353  * and flows between hardware versions (4965/5000) as well as their API
 354  * versions.
 355  *
 356  */
 357 struct iwl_cfg {
 358         /* params specific to an individual device within a device family */
 359         const char *name;
 360         const char *fw_name_pre;
 361         const unsigned int ucode_api_max;
 362         const unsigned int ucode_api_min;
 363         u8   valid_tx_ant;
 364         u8   valid_rx_ant;
 365         unsigned int sku;
 366         u16  eeprom_ver;
 367         u16  eeprom_calib_ver;
 368         const struct iwl_ops *ops;
 369         /* module based parameters which can be set from modprobe cmd */
 370         const struct iwl_mod_params *mod_params;
 371         /* params not likely to change within a device family */
 372         struct iwl_base_params *base_params;
 373         /* params likely to change within a device family */
 374         struct iwl_ht_params *ht_params;
 375         struct iwl_bt_params *bt_params;
 376         enum iwl_pa_type pa_type;         /* if used set to IWL_PA_SYSTEM */
 377         const bool need_dc_calib;         /* if used set to true */
 378         const bool need_temp_offset_calib; /* if used set to true */
 379         u8 scan_rx_antennas[IEEE80211_NUM_BANDS];
 380         enum iwl_led_mode led_mode;
 381         const bool adv_pm;
 382         const bool rx_with_siso_diversity;
 383         const bool internal_wimax_coex;
 384         const bool iq_invert;
 385         const bool disable_otp_refresh;
 386 };
 387
 388 /***************************
 389  *   L i b                 *
 390  ***************************/
 391
 392 struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg);
 393 int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
 394                     const struct ieee80211_tx_queue_params *params);
 395 int iwl_mac_tx_last_beacon(struct ieee80211_hw *hw);
 396 void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
 397                            int hw_decrypt);
 398 int iwl_check_rxon_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 399 int iwl_full_rxon_required(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 400 int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch,
 401                          struct iwl_rxon_context *ctx);
 402 void iwl_set_flags_for_band(struct iwl_priv *priv,
 403                             struct iwl_rxon_context *ctx,
 404                             enum ieee80211_band band,
 405                             struct ieee80211_vif *vif);
 406 u8 iwl_get_single_channel_number(struct iwl_priv *priv,
 407                                   enum ieee80211_band band);
 408 void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf);
 409 bool iwl_is_ht40_tx_allowed(struct iwl_priv *priv,
 410                             struct iwl_rxon_context *ctx,
 411                             struct ieee80211_sta_ht_cap *ht_cap);
 412 void iwl_connection_init_rx_config(struct iwl_priv *priv,
 413                                    struct iwl_rxon_context *ctx);
 414 void iwl_set_rate(struct iwl_priv *priv);
 415 void iwl_irq_handle_error(struct iwl_priv *priv);
 416 int iwl_mac_add_interface(struct ieee80211_hw *hw,
 417                           struct ieee80211_vif *vif);
 418 void iwl_mac_remove_interface(struct ieee80211_hw *hw,
 419                               struct ieee80211_vif *vif);
 420 int iwl_mac_change_interface(struct ieee80211_hw *hw,
 421                              struct ieee80211_vif *vif,
 422                              enum nl80211_iftype newtype, bool newp2p);
 423 int iwl_alloc_txq_mem(struct iwl_priv *priv);
 424 void iwl_free_txq_mem(struct iwl_priv *priv);
 425
 426 #ifdef CONFIG_IWLWIFI_DEBUGFS
 427 int iwl_alloc_traffic_mem(struct iwl_priv *priv);
 428 void iwl_free_traffic_mem(struct iwl_priv *priv);
 429 void iwl_reset_traffic_log(struct iwl_priv *priv);
 430 void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
 431                                 u16 length, struct ieee80211_hdr *header);
 432 void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
 433                                 u16 length, struct ieee80211_hdr *header);
 434 const char *get_mgmt_string(int cmd);
 435 const char *get_ctrl_string(int cmd);
 436 void iwl_clear_traffic_stats(struct iwl_priv *priv);
 437 void iwl_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc,
 438                       u16 len);
 439 #else
 440 static inline int iwl_alloc_traffic_mem(struct iwl_priv *priv)
 441 {
 442         return 0;
 443 }
 444 static inline void iwl_free_traffic_mem(struct iwl_priv *priv)
 445 {
 446 }
 447 static inline void iwl_reset_traffic_log(struct iwl_priv *priv)
 448 {
 449 }
 450 static inline void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
 451                       u16 length, struct ieee80211_hdr *header)
 452 {
 453 }
 454 static inline void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
 455                       u16 length, struct ieee80211_hdr *header)
 456 {
 457 }
 458 static inline void iwl_update_stats(struct iwl_priv *priv, bool is_tx,
 459                                     __le16 fc, u16 len)
 460 {
 461 }
 462 #endif
 463
 464 /*****************************************************
 465 * RX
 466 ******************************************************/
 467 void iwl_cmd_queue_free(struct iwl_priv *priv);
 468 void iwl_cmd_queue_unmap(struct iwl_priv *priv);
 469 int iwl_rx_queue_alloc(struct iwl_priv *priv);
 470 void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv,
 471                                   struct iwl_rx_queue *q);
 472 int iwl_rx_queue_space(const struct iwl_rx_queue *q);
 473 void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
 474
 475 void iwl_chswitch_done(struct iwl_priv *priv, bool is_success);
 476
 477 /* TX helpers */
 478
 479 /*****************************************************
 480 * TX
 481 ******************************************************/
 482 void iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq);
 483 int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
 484                       int slots_num, u32 txq_id);
 485 void iwl_tx_queue_reset(struct iwl_priv *priv, struct iwl_tx_queue *txq,
 486                         int slots_num, u32 txq_id);
 487 void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id);
 488 void iwl_tx_queue_unmap(struct iwl_priv *priv, int txq_id);
 489 void iwl_setup_watchdog(struct iwl_priv *priv);
 490 /*****************************************************
 491  * TX power
 492  ****************************************************/
 493 int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force);
 494
 495 /*******************************************************************************
 496  * Rate
 497  ******************************************************************************/
 498
 499 u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv,
 500                             struct iwl_rxon_context *ctx);
 501
 502 /*******************************************************************************
 503  * Scanning
 504  ******************************************************************************/
 505 void iwl_init_scan_params(struct iwl_priv *priv);
 506 int iwl_scan_cancel(struct iwl_priv *priv);
 507 int iwl_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms);
 508 void iwl_force_scan_end(struct iwl_priv *priv);
 509 int iwl_mac_hw_scan(struct ieee80211_hw *hw,
 510                     struct ieee80211_vif *vif,
 511                     struct cfg80211_scan_request *req);
 512 void iwl_internal_short_hw_scan(struct iwl_priv *priv);
 513 int iwl_force_reset(struct iwl_priv *priv, int mode, bool external);
 514 u16 iwl_fill_probe_req(struct iwl_priv *priv, struct ieee80211_mgmt *frame,
 515                        const u8 *ta, const u8 *ie, int ie_len, int left);
 516 void iwl_setup_rx_scan_handlers(struct iwl_priv *priv);
 517 u16 iwl_get_active_dwell_time(struct iwl_priv *priv,
 518                               enum ieee80211_band band,
 519                               u8 n_probes);
 520 u16 iwl_get_passive_dwell_time(struct iwl_priv *priv,
 521                                enum ieee80211_band band,
 522                                struct ieee80211_vif *vif);
 523 void iwl_setup_scan_deferred_work(struct iwl_priv *priv);
 524 void iwl_cancel_scan_deferred_work(struct iwl_priv *priv);
 525 int __must_check iwl_scan_initiate(struct iwl_priv *priv,
 526                                    struct ieee80211_vif *vif,
 527                                    enum iwl_scan_type scan_type,
 528                                    enum ieee80211_band band);
 529
 530 /* For faster active scanning, scan will move to the next channel if fewer than
 531  * PLCP_QUIET_THRESH packets are heard on this channel within
 532  * ACTIVE_QUIET_TIME after sending probe request.  This shortens the dwell
 533  * time if it's a quiet channel (nothing responded to our probe, and there's
 534  * no other traffic).
 535  * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
 536 #define IWL_ACTIVE_QUIET_TIME       cpu_to_le16(10)  /* msec */
 537 #define IWL_PLCP_QUIET_THRESH       cpu_to_le16(1)  /* packets */
 538
 539 #define IWL_SCAN_CHECK_WATCHDOG         (HZ * 7)
 540
 541 /*****************************************************
 542  *   S e n d i n g     H o s t     C o m m a n d s   *
 543  *****************************************************/
 544
 545 const char *get_cmd_string(u8 cmd);
 546 int __must_check iwl_send_cmd_sync(struct iwl_priv *priv,
 547                                    struct iwl_host_cmd *cmd);
 548 int iwl_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 549 int __must_check iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id,
 550                                   u16 len, const void *data);
 551 int iwl_send_cmd_pdu_async(struct iwl_priv *priv, u8 id, u16 len,
 552                            const void *data,
 553                            void (*callback)(struct iwl_priv *priv,
 554                                             struct iwl_device_cmd *cmd,
 555                                             struct iwl_rx_packet *pkt));
 556
 557 int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 558
 559
 560 /*****************************************************
 561  * PCI                                               *
 562  *****************************************************/
 563
 564 static inline u16 iwl_pcie_link_ctl(struct iwl_priv *priv)
 565 {
 566         int pos;
 567         u16 pci_lnk_ctl;
 568         pos = pci_find_capability(priv->pci_dev, PCI_CAP_ID_EXP);
 569         pci_read_config_word(priv->pci_dev, pos + PCI_EXP_LNKCTL, &pci_lnk_ctl);
 570         return pci_lnk_ctl;
 571 }
 572
 573 void iwl_bg_watchdog(unsigned long data);
 574 u32 iwl_usecs_to_beacons(struct iwl_priv *priv, u32 usec, u32 beacon_interval);
 575 __le32 iwl_add_beacon_time(struct iwl_priv *priv, u32 base,
 576                            u32 addon, u32 beacon_interval);
 577
 578 #ifdef CONFIG_PM
 579 int iwl_pci_suspend(struct device *device);
 580 int iwl_pci_resume(struct device *device);
 581 extern const struct dev_pm_ops iwl_pm_ops;
 582
 583 #define IWL_PM_OPS      (&iwl_pm_ops)
 584
 585 #else /* !CONFIG_PM */
 586
 587 #define IWL_PM_OPS      NULL
 588
 589 #endif /* !CONFIG_PM */
 590
 591 /*****************************************************
 592 *  Error Handling Debugging
 593 ******************************************************/
 594 void iwl_dump_nic_error_log(struct iwl_priv *priv);
 595 int iwl_dump_nic_event_log(struct iwl_priv *priv,
 596                            bool full_log, char **buf, bool display);
 597 void iwl_dump_csr(struct iwl_priv *priv);
 598 int iwl_dump_fh(struct iwl_priv *priv, char **buf, bool display);
 599 #ifdef CONFIG_IWLWIFI_DEBUG
 600 void iwl_print_rx_config_cmd(struct iwl_priv *priv,
 601                              struct iwl_rxon_context *ctx);
 602 #else
 603 static inline void iwl_print_rx_config_cmd(struct iwl_priv *priv,
 604                                            struct iwl_rxon_context *ctx)
 605 {
 606 }
 607 #endif
 608
 609 void iwl_clear_isr_stats(struct iwl_priv *priv);
 610
 611 /*****************************************************
 612 *  GEOS
 613 ******************************************************/
 614 int iwlcore_init_geos(struct iwl_priv *priv);
 615 void iwlcore_free_geos(struct iwl_priv *priv);
 616
 617 /*************** DRIVER STATUS FUNCTIONS   *****/
 618
 619 #define STATUS_HCMD_ACTIVE      0       /* host command in progress */
 620 /* 1 is unused (used to be STATUS_HCMD_SYNC_ACTIVE) */
 621 #define STATUS_INT_ENABLED      2
 622 #define STATUS_RF_KILL_HW       3
 623 #define STATUS_CT_KILL          4
 624 #define STATUS_INIT             5
 625 #define STATUS_ALIVE            6
 626 #define STATUS_READY            7
 627 #define STATUS_TEMPERATURE      8
 628 #define STATUS_GEO_CONFIGURED   9
 629 #define STATUS_EXIT_PENDING     10
 630 #define STATUS_STATISTICS       12
 631 #define STATUS_SCANNING         13
 632 #define STATUS_SCAN_ABORTING    14
 633 #define STATUS_SCAN_HW          15
 634 #define STATUS_POWER_PMI        16
 635 #define STATUS_FW_ERROR         17
 636
 637
 638 static inline int iwl_is_ready(struct iwl_priv *priv)
 639 {
 640         /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
 641          * set but EXIT_PENDING is not */
 642         return test_bit(STATUS_READY, &priv->status) &&
 643                test_bit(STATUS_GEO_CONFIGURED, &priv->status) &&
 644                !test_bit(STATUS_EXIT_PENDING, &priv->status);
 645 }
 646
 647 static inline int iwl_is_alive(struct iwl_priv *priv)
 648 {
 649         return test_bit(STATUS_ALIVE, &priv->status);
 650 }
 651
 652 static inline int iwl_is_init(struct iwl_priv *priv)
 653 {
 654         return test_bit(STATUS_INIT, &priv->status);
 655 }
 656
 657 static inline int iwl_is_rfkill_hw(struct iwl_priv *priv)
 658 {
 659         return test_bit(STATUS_RF_KILL_HW, &priv->status);
 660 }
 661
 662 static inline int iwl_is_rfkill(struct iwl_priv *priv)
 663 {
 664         return iwl_is_rfkill_hw(priv);
 665 }
 666
 667 static inline int iwl_is_ctkill(struct iwl_priv *priv)
 668 {
 669         return test_bit(STATUS_CT_KILL, &priv->status);
 670 }
 671
 672 static inline int iwl_is_ready_rf(struct iwl_priv *priv)
 673 {
 674
 675         if (iwl_is_rfkill(priv))
 676                 return 0;
 677
 678         return iwl_is_ready(priv);
 679 }
 680
 681 extern void iwl_send_bt_config(struct iwl_priv *priv);
 682 extern int iwl_send_statistics_request(struct iwl_priv *priv,
 683                                        u8 flags, bool clear);
 684 void iwl_apm_stop(struct iwl_priv *priv);
 685 int iwl_apm_init(struct iwl_priv *priv);
 686
 687 int iwl_send_rxon_timing(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 688 static inline int iwl_send_rxon_assoc(struct iwl_priv *priv,
 689                                       struct iwl_rxon_context *ctx)
 690 {
 691         return priv->cfg->ops->hcmd->rxon_assoc(priv, ctx);
 692 }
 693 static inline int iwlcore_commit_rxon(struct iwl_priv *priv,
 694                                       struct iwl_rxon_context *ctx)
 695 {
 696         return priv->cfg->ops->hcmd->commit_rxon(priv, ctx);
 697 }
 698 static inline const struct ieee80211_supported_band *iwl_get_hw_mode(
 699                         struct iwl_priv *priv, enum ieee80211_band band)
 700 {
 701         return priv->hw->wiphy->bands[band];
 702 }
 703
 704 static inline bool iwl_advanced_bt_coexist(struct iwl_priv *priv)
 705 {
 706         return priv->cfg->bt_params &&
 707                priv->cfg->bt_params->advanced_bt_coexist;
 708 }
 709
 710 static inline bool iwl_bt_statistics(struct iwl_priv *priv)
 711 {
 712         return priv->bt_statistics;
 713 }
 714
 715 extern bool bt_coex_active;
 716 extern bool bt_siso_mode;
 717
 718
 719 void iwlagn_fw_error(struct iwl_priv *priv, bool ondemand);
 720
 721 #endif /* __iwl_core_h__ */