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_isr_ops {
 124         irqreturn_t (*isr) (int irq, void *data);
 125         void (*free)(struct iwl_priv *priv);
 126         int (*alloc)(struct iwl_priv *priv);
 127         int (*reset)(struct iwl_priv *priv);
 128         void (*disable)(struct iwl_priv *priv);
 129 };
 130
 131 struct iwl_debugfs_ops {
 132         ssize_t (*rx_stats_read)(struct file *file, char __user *user_buf,
 133                                  size_t count, loff_t *ppos);
 134         ssize_t (*tx_stats_read)(struct file *file, char __user *user_buf,
 135                                  size_t count, loff_t *ppos);
 136         ssize_t (*general_stats_read)(struct file *file, char __user *user_buf,
 137                                       size_t count, loff_t *ppos);
 138         ssize_t (*bt_stats_read)(struct file *file, char __user *user_buf,
 139                                  size_t count, loff_t *ppos);
 140         ssize_t (*reply_tx_error)(struct file *file, char __user *user_buf,
 141                                  size_t count, loff_t *ppos);
 142 };
 143
 144 struct iwl_temp_ops {
 145         void (*temperature)(struct iwl_priv *priv);
 146 };
 147
 148 struct iwl_tt_ops {
 149         bool (*lower_power_detection)(struct iwl_priv *priv);
 150         u8 (*tt_power_mode)(struct iwl_priv *priv);
 151         bool (*ct_kill_check)(struct iwl_priv *priv);
 152 };
 153
 154 struct iwl_lib_ops {
 155         /* set hw dependent parameters */
 156         int (*set_hw_params)(struct iwl_priv *priv);
 157         /* Handling TX */
 158         void (*txq_update_byte_cnt_tbl)(struct iwl_priv *priv,
 159                                         struct iwl_tx_queue *txq,
 160                                         u16 byte_cnt);
 161         void (*txq_inval_byte_cnt_tbl)(struct iwl_priv *priv,
 162                                        struct iwl_tx_queue *txq);
 163         void (*txq_set_sched)(struct iwl_priv *priv, u32 mask);
 164         int (*txq_attach_buf_to_tfd)(struct iwl_priv *priv,
 165                                      struct iwl_tx_queue *txq,
 166                                      dma_addr_t addr,
 167                                      u16 len, u8 reset, u8 pad);
 168         void (*txq_free_tfd)(struct iwl_priv *priv,
 169                              struct iwl_tx_queue *txq);
 170         int (*txq_init)(struct iwl_priv *priv,
 171                         struct iwl_tx_queue *txq);
 172         /* aggregations */
 173         int (*txq_agg_enable)(struct iwl_priv *priv, int txq_id, int tx_fifo,
 174                               int sta_id, int tid, u16 ssn_idx);
 175         int (*txq_agg_disable)(struct iwl_priv *priv, u16 txq_id, u16 ssn_idx,
 176                                u8 tx_fifo);
 177         /* setup Rx handler */
 178         void (*rx_handler_setup)(struct iwl_priv *priv);
 179         /* setup deferred work */
 180         void (*setup_deferred_work)(struct iwl_priv *priv);
 181         /* cancel deferred work */
 182         void (*cancel_deferred_work)(struct iwl_priv *priv);
 183         /* alive notification after init uCode load */
 184         void (*init_alive_start)(struct iwl_priv *priv);
 185         /* alive notification */
 186         int (*alive_notify)(struct iwl_priv *priv);
 187         /* check validity of rtc data address */
 188         int (*is_valid_rtc_data_addr)(u32 addr);
 189         /* 1st ucode load */
 190         int (*load_ucode)(struct iwl_priv *priv);
 191         int (*dump_nic_event_log)(struct iwl_priv *priv,
 192                                   bool full_log, char **buf, bool display);
 193         void (*dump_nic_error_log)(struct iwl_priv *priv);
 194         void (*dump_csr)(struct iwl_priv *priv);
 195         int (*dump_fh)(struct iwl_priv *priv, char **buf, bool display);
 196         int (*set_channel_switch)(struct iwl_priv *priv,
 197                                   struct ieee80211_channel_switch *ch_switch);
 198         /* power management */
 199         struct iwl_apm_ops apm_ops;
 200
 201         /* power */
 202         int (*send_tx_power) (struct iwl_priv *priv);
 203         void (*update_chain_flags)(struct iwl_priv *priv);
 204
 205         /* isr */
 206         struct iwl_isr_ops isr_ops;
 207
 208         /* eeprom operations (as defined in iwl-eeprom.h) */
 209         struct iwl_eeprom_ops eeprom_ops;
 210
 211         /* temperature */
 212         struct iwl_temp_ops temp_ops;
 213         /* check for plcp health */
 214         bool (*check_plcp_health)(struct iwl_priv *priv,
 215                                         struct iwl_rx_packet *pkt);
 216         /* check for ack health */
 217         bool (*check_ack_health)(struct iwl_priv *priv,
 218                                         struct iwl_rx_packet *pkt);
 219         int (*txfifo_flush)(struct iwl_priv *priv, u16 flush_control);
 220         void (*dev_txfifo_flush)(struct iwl_priv *priv, u16 flush_control);
 221
 222         struct iwl_debugfs_ops debugfs_ops;
 223
 224         /* thermal throttling */
 225         struct iwl_tt_ops tt_ops;
 226 };
 227
 228 struct iwl_led_ops {
 229         int (*cmd)(struct iwl_priv *priv, struct iwl_led_cmd *led_cmd);
 230 };
 231
 232 /* NIC specific ops */
 233 struct iwl_nic_ops {
 234         void (*additional_nic_config)(struct iwl_priv *priv);
 235 };
 236
 237 struct iwl_legacy_ops {
 238         void (*post_associate)(struct iwl_priv *priv);
 239         void (*config_ap)(struct iwl_priv *priv);
 240         /* station management */
 241         int (*update_bcast_stations)(struct iwl_priv *priv);
 242         int (*manage_ibss_station)(struct iwl_priv *priv,
 243                                    struct ieee80211_vif *vif, bool add);
 244 };
 245
 246 struct iwl_ops {
 247         const struct iwl_lib_ops *lib;
 248         const struct iwl_hcmd_ops *hcmd;
 249         const struct iwl_hcmd_utils_ops *utils;
 250         const struct iwl_led_ops *led;
 251         const struct iwl_nic_ops *nic;
 252         const struct iwl_legacy_ops *legacy;
 253         const struct ieee80211_ops *ieee80211_ops;
 254 };
 255
 256 struct iwl_mod_params {
 257         int sw_crypto;          /* def: 0 = using hardware encryption */
 258         int disable_hw_scan;    /* def: 0 = use h/w scan */
 259         int num_of_queues;      /* def: HW dependent */
 260         int disable_11n;        /* def: 0 = 11n capabilities enabled */
 261         int amsdu_size_8K;      /* def: 1 = enable 8K amsdu size */
 262         int antenna;            /* def: 0 = both antennas (use diversity) */
 263         int restart_fw;         /* def: 1 = restart firmware */
 264 };
 265
 266 /*
 267  * @max_ll_items: max number of OTP blocks
 268  * @shadow_ram_support: shadow support for OTP memory
 269  * @led_compensation: compensate on the led on/off time per HW according
 270  *      to the deviation to achieve the desired led frequency.
 271  *      The detail algorithm is described in iwl-led.c
 272  * @chain_noise_num_beacons: number of beacons used to compute chain noise
 273  * @adv_thermal_throttle: support advance thermal throttle
 274  * @support_ct_kill_exit: support ct kill exit condition
 275  * @support_wimax_coexist: support wimax/wifi co-exist
 276  * @plcp_delta_threshold: plcp error rate threshold used to trigger
 277  *      radio tuning when there is a high receiving plcp error rate
 278  * @chain_noise_scale: default chain noise scale used for gain computation
 279  * @wd_timeout: TX queues watchdog timeout
 280  * @temperature_kelvin: temperature report by uCode in kelvin
 281  * @max_event_log_size: size of event log buffer size for ucode event logging
 282  * @tx_power_by_driver: tx power calibration performed by driver
 283  *      instead of uCode
 284  * @ucode_tracing: support ucode continuous tracing
 285  * @sensitivity_calib_by_driver: driver has the capability to perform
 286  *      sensitivity calibration operation
 287  * @chain_noise_calib_by_driver: driver has the capability to perform
 288  *      chain noise calibration operation
 289  * @shadow_reg_enable: HW shadhow register bit
 290  * @no_agg_framecnt_info: uCode do not provide aggregation frame count
 291  *      information
 292  */
 293 struct iwl_base_params {
 294         int eeprom_size;
 295         int num_of_queues;      /* def: HW dependent */
 296         int num_of_ampdu_queues;/* def: HW dependent */
 297         /* for iwl_apm_init() */
 298         u32 pll_cfg_val;
 299         bool set_l0s;
 300         bool use_bsm;
 301
 302         bool use_isr_legacy;
 303         const u16 max_ll_items;
 304         const bool shadow_ram_support;
 305         u16 led_compensation;
 306         const bool broken_powersave;
 307         int chain_noise_num_beacons;
 308         const bool supports_idle;
 309         bool adv_thermal_throttle;
 310         bool support_ct_kill_exit;
 311         const bool support_wimax_coexist;
 312         u8 plcp_delta_threshold;
 313         s32 chain_noise_scale;
 314         unsigned int wd_timeout;
 315         bool temperature_kelvin;
 316         u32 max_event_log_size;
 317         const bool tx_power_by_driver;
 318         const bool ucode_tracing;
 319         const bool sensitivity_calib_by_driver;
 320         const bool chain_noise_calib_by_driver;
 321         const bool shadow_reg_enable;
 322         const bool no_agg_framecnt_info;
 323 };
 324 /*
 325  * @advanced_bt_coexist: support advanced bt coexist
 326  * @bt_init_traffic_load: specify initial bt traffic load
 327  * @bt_prio_boost: default bt priority boost value
 328  * @bt_statistics: use BT version of statistics notification
 329  * @agg_time_limit: maximum number of uSec in aggregation
 330  * @ampdu_factor: Maximum A-MPDU length factor
 331  * @ampdu_density: Minimum A-MPDU spacing
 332  * @bt_sco_disable: uCode should not response to BT in SCO/ESCO mode
 333 */
 334 struct iwl_bt_params {
 335         bool advanced_bt_coexist;
 336         u8 bt_init_traffic_load;
 337         u8 bt_prio_boost;
 338         const bool bt_statistics;
 339         u16 agg_time_limit;
 340         u8 ampdu_factor;
 341         u8 ampdu_density;
 342         bool bt_sco_disable;
 343 };
 344 /*
 345  * @use_rts_for_aggregation: use rts/cts protection for HT traffic
 346 */
 347 struct iwl_ht_params {
 348         const bool ht_greenfield_support; /* if used set to true */
 349         bool use_rts_for_aggregation;
 350 };
 351
 352 /**
 353  * struct iwl_cfg
 354  * @fw_name_pre: Firmware filename prefix. The api version and extension
 355  *      (.ucode) will be added to filename before loading from disk. The
 356  *      filename is constructed as fw_name_pre<api>.ucode.
 357  * @ucode_api_max: Highest version of uCode API supported by driver.
 358  * @ucode_api_min: Lowest version of uCode API supported by driver.
 359  * @pa_type: used by 6000 series only to identify the type of Power Amplifier
 360  * @need_dc_calib: need to perform init dc calibration
 361  * @need_temp_offset_calib: need to perform temperature offset calibration
 362  * @scan_antennas: available antenna for scan operation
 363  * @led_mode: 0=blinking, 1=On(RF On)/Off(RF Off)
 364  * @adv_pm: advance power management
 365  * @rx_with_siso_diversity: 1x1 device with rx antenna diversity
 366  * @internal_wimax_coex: internal wifi/wimax combo device
 367  *
 368  * We enable the driver to be backward compatible wrt API version. The
 369  * driver specifies which APIs it supports (with @ucode_api_max being the
 370  * highest and @ucode_api_min the lowest). Firmware will only be loaded if
 371  * it has a supported API version. The firmware's API version will be
 372  * stored in @iwl_priv, enabling the driver to make runtime changes based
 373  * on firmware version used.
 374  *
 375  * For example,
 376  * if (IWL_UCODE_API(priv->ucode_ver) >= 2) {
 377  *      Driver interacts with Firmware API version >= 2.
 378  * } else {
 379  *      Driver interacts with Firmware API version 1.
 380  * }
 381  *
 382  * The ideal usage of this infrastructure is to treat a new ucode API
 383  * release as a new hardware revision. That is, through utilizing the
 384  * iwl_hcmd_utils_ops etc. we accommodate different command structures
 385  * and flows between hardware versions (4965/5000) as well as their API
 386  * versions.
 387  *
 388  */
 389 struct iwl_cfg {
 390         /* params specific to an individual device within a device family */
 391         const char *name;
 392         const char *fw_name_pre;
 393         const unsigned int ucode_api_max;
 394         const unsigned int ucode_api_min;
 395         u8   valid_tx_ant;
 396         u8   valid_rx_ant;
 397         unsigned int sku;
 398         u16  eeprom_ver;
 399         u16  eeprom_calib_ver;
 400         const struct iwl_ops *ops;
 401         /* module based parameters which can be set from modprobe cmd */
 402         const struct iwl_mod_params *mod_params;
 403         /* params not likely to change within a device family */
 404         struct iwl_base_params *base_params;
 405         /* params likely to change within a device family */
 406         struct iwl_ht_params *ht_params;
 407         struct iwl_bt_params *bt_params;
 408         enum iwl_pa_type pa_type;         /* if used set to IWL_PA_SYSTEM */
 409         const bool need_dc_calib;         /* if used set to true */
 410         const bool need_temp_offset_calib; /* if used set to true */
 411         u8 scan_rx_antennas[IEEE80211_NUM_BANDS];
 412         enum iwl_led_mode led_mode;
 413         const bool adv_pm;
 414         const bool rx_with_siso_diversity;
 415         const bool internal_wimax_coex;
 416 };
 417
 418 /***************************
 419  *   L i b                 *
 420  ***************************/
 421
 422 struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg);
 423 int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
 424                     const struct ieee80211_tx_queue_params *params);
 425 int iwl_mac_tx_last_beacon(struct ieee80211_hw *hw);
 426 void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
 427                            int hw_decrypt);
 428 int iwl_check_rxon_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 429 int iwl_full_rxon_required(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 430 int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch,
 431                          struct iwl_rxon_context *ctx);
 432 void iwl_set_flags_for_band(struct iwl_priv *priv,
 433                             struct iwl_rxon_context *ctx,
 434                             enum ieee80211_band band,
 435                             struct ieee80211_vif *vif);
 436 u8 iwl_get_single_channel_number(struct iwl_priv *priv,
 437                                   enum ieee80211_band band);
 438 void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf);
 439 bool iwl_is_ht40_tx_allowed(struct iwl_priv *priv,
 440                             struct iwl_rxon_context *ctx,
 441                             struct ieee80211_sta_ht_cap *ht_cap);
 442 void iwl_connection_init_rx_config(struct iwl_priv *priv,
 443                                    struct iwl_rxon_context *ctx);
 444 void iwl_set_rate(struct iwl_priv *priv);
 445 int iwl_set_decrypted_flag(struct iwl_priv *priv,
 446                            struct ieee80211_hdr *hdr,
 447                            u32 decrypt_res,
 448                            struct ieee80211_rx_status *stats);
 449 void iwl_irq_handle_error(struct iwl_priv *priv);
 450 int iwl_mac_add_interface(struct ieee80211_hw *hw,
 451                           struct ieee80211_vif *vif);
 452 void iwl_mac_remove_interface(struct ieee80211_hw *hw,
 453                               struct ieee80211_vif *vif);
 454 int iwl_mac_change_interface(struct ieee80211_hw *hw,
 455                              struct ieee80211_vif *vif,
 456                              enum nl80211_iftype newtype, bool newp2p);
 457 int iwl_alloc_txq_mem(struct iwl_priv *priv);
 458 void iwl_free_txq_mem(struct iwl_priv *priv);
 459
 460 #ifdef CONFIG_IWLWIFI_DEBUGFS
 461 int iwl_alloc_traffic_mem(struct iwl_priv *priv);
 462 void iwl_free_traffic_mem(struct iwl_priv *priv);
 463 void iwl_reset_traffic_log(struct iwl_priv *priv);
 464 void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
 465                                 u16 length, struct ieee80211_hdr *header);
 466 void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
 467                                 u16 length, struct ieee80211_hdr *header);
 468 const char *get_mgmt_string(int cmd);
 469 const char *get_ctrl_string(int cmd);
 470 void iwl_clear_traffic_stats(struct iwl_priv *priv);
 471 void iwl_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc,
 472                       u16 len);
 473 #else
 474 static inline int iwl_alloc_traffic_mem(struct iwl_priv *priv)
 475 {
 476         return 0;
 477 }
 478 static inline void iwl_free_traffic_mem(struct iwl_priv *priv)
 479 {
 480 }
 481 static inline void iwl_reset_traffic_log(struct iwl_priv *priv)
 482 {
 483 }
 484 static inline void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
 485                       u16 length, struct ieee80211_hdr *header)
 486 {
 487 }
 488 static inline void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
 489                       u16 length, struct ieee80211_hdr *header)
 490 {
 491 }
 492 static inline void iwl_update_stats(struct iwl_priv *priv, bool is_tx,
 493                                     __le16 fc, u16 len)
 494 {
 495 }
 496 #endif
 497 /*****************************************************
 498  * RX handlers.
 499  * **************************************************/
 500 void iwl_rx_pm_sleep_notif(struct iwl_priv *priv,
 501                            struct iwl_rx_mem_buffer *rxb);
 502 void iwl_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
 503                                       struct iwl_rx_mem_buffer *rxb);
 504 void iwl_rx_reply_error(struct iwl_priv *priv,
 505                         struct iwl_rx_mem_buffer *rxb);
 506
 507 /*****************************************************
 508 * RX
 509 ******************************************************/
 510 void iwl_cmd_queue_free(struct iwl_priv *priv);
 511 int iwl_rx_queue_alloc(struct iwl_priv *priv);
 512 void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv,
 513                                   struct iwl_rx_queue *q);
 514 int iwl_rx_queue_space(const struct iwl_rx_queue *q);
 515 void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
 516 /* Handlers */
 517 void iwl_rx_spectrum_measure_notif(struct iwl_priv *priv,
 518                                           struct iwl_rx_mem_buffer *rxb);
 519 void iwl_recover_from_statistics(struct iwl_priv *priv,
 520                                 struct iwl_rx_packet *pkt);
 521 void iwl_chswitch_done(struct iwl_priv *priv, bool is_success);
 522 void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
 523
 524 /* TX helpers */
 525
 526 /*****************************************************
 527 * TX
 528 ******************************************************/
 529 void iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq);
 530 int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
 531                       int slots_num, u32 txq_id);
 532 void iwl_tx_queue_reset(struct iwl_priv *priv, struct iwl_tx_queue *txq,
 533                         int slots_num, u32 txq_id);
 534 void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id);
 535 void iwl_setup_watchdog(struct iwl_priv *priv);
 536 /*****************************************************
 537  * TX power
 538  ****************************************************/
 539 int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force);
 540
 541 /*******************************************************************************
 542  * Rate
 543  ******************************************************************************/
 544
 545 u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv,
 546                             struct iwl_rxon_context *ctx);
 547
 548 /*******************************************************************************
 549  * Scanning
 550  ******************************************************************************/
 551 void iwl_init_scan_params(struct iwl_priv *priv);
 552 int iwl_scan_cancel(struct iwl_priv *priv);
 553 int iwl_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms);
 554 void iwl_force_scan_end(struct iwl_priv *priv);
 555 int iwl_mac_hw_scan(struct ieee80211_hw *hw,
 556                     struct ieee80211_vif *vif,
 557                     struct cfg80211_scan_request *req);
 558 void iwl_internal_short_hw_scan(struct iwl_priv *priv);
 559 int iwl_force_reset(struct iwl_priv *priv, int mode, bool external);
 560 u16 iwl_fill_probe_req(struct iwl_priv *priv, struct ieee80211_mgmt *frame,
 561                        const u8 *ta, const u8 *ie, int ie_len, int left);
 562 void iwl_setup_rx_scan_handlers(struct iwl_priv *priv);
 563 u16 iwl_get_active_dwell_time(struct iwl_priv *priv,
 564                               enum ieee80211_band band,
 565                               u8 n_probes);
 566 u16 iwl_get_passive_dwell_time(struct iwl_priv *priv,
 567                                enum ieee80211_band band,
 568                                struct ieee80211_vif *vif);
 569 void iwl_setup_scan_deferred_work(struct iwl_priv *priv);
 570 void iwl_cancel_scan_deferred_work(struct iwl_priv *priv);
 571
 572 /* For faster active scanning, scan will move to the next channel if fewer than
 573  * PLCP_QUIET_THRESH packets are heard on this channel within
 574  * ACTIVE_QUIET_TIME after sending probe request.  This shortens the dwell
 575  * time if it's a quiet channel (nothing responded to our probe, and there's
 576  * no other traffic).
 577  * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
 578 #define IWL_ACTIVE_QUIET_TIME       cpu_to_le16(10)  /* msec */
 579 #define IWL_PLCP_QUIET_THRESH       cpu_to_le16(1)  /* packets */
 580
 581 #define IWL_SCAN_CHECK_WATCHDOG         (HZ * 7)
 582
 583 /*****************************************************
 584  *   S e n d i n g     H o s t     C o m m a n d s   *
 585  *****************************************************/
 586
 587 const char *get_cmd_string(u8 cmd);
 588 int __must_check iwl_send_cmd_sync(struct iwl_priv *priv,
 589                                    struct iwl_host_cmd *cmd);
 590 int iwl_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 591 int __must_check iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id,
 592                                   u16 len, const void *data);
 593 int iwl_send_cmd_pdu_async(struct iwl_priv *priv, u8 id, u16 len,
 594                            const void *data,
 595                            void (*callback)(struct iwl_priv *priv,
 596                                             struct iwl_device_cmd *cmd,
 597                                             struct iwl_rx_packet *pkt));
 598
 599 int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 600
 601
 602 /*****************************************************
 603  * PCI                                               *
 604  *****************************************************/
 605
 606 static inline u16 iwl_pcie_link_ctl(struct iwl_priv *priv)
 607 {
 608         int pos;
 609         u16 pci_lnk_ctl;
 610         pos = pci_find_capability(priv->pci_dev, PCI_CAP_ID_EXP);
 611         pci_read_config_word(priv->pci_dev, pos + PCI_EXP_LNKCTL, &pci_lnk_ctl);
 612         return pci_lnk_ctl;
 613 }
 614
 615 void iwl_bg_watchdog(unsigned long data);
 616 u32 iwl_usecs_to_beacons(struct iwl_priv *priv, u32 usec, u32 beacon_interval);
 617 __le32 iwl_add_beacon_time(struct iwl_priv *priv, u32 base,
 618                            u32 addon, u32 beacon_interval);
 619
 620 #ifdef CONFIG_PM
 621 int iwl_pci_suspend(struct device *device);
 622 int iwl_pci_resume(struct device *device);
 623 extern const struct dev_pm_ops iwl_pm_ops;
 624
 625 #define IWL_PM_OPS      (&iwl_pm_ops)
 626
 627 #else /* !CONFIG_PM */
 628
 629 #define IWL_PM_OPS      NULL
 630
 631 #endif /* !CONFIG_PM */
 632
 633 /*****************************************************
 634 *  Error Handling Debugging
 635 ******************************************************/
 636 void iwl_dump_nic_error_log(struct iwl_priv *priv);
 637 int iwl_dump_nic_event_log(struct iwl_priv *priv,
 638                            bool full_log, char **buf, bool display);
 639 #ifdef CONFIG_IWLWIFI_DEBUG
 640 void iwl_print_rx_config_cmd(struct iwl_priv *priv,
 641                              struct iwl_rxon_context *ctx);
 642 #else
 643 static inline void iwl_print_rx_config_cmd(struct iwl_priv *priv,
 644                                            struct iwl_rxon_context *ctx)
 645 {
 646 }
 647 #endif
 648
 649 void iwl_clear_isr_stats(struct iwl_priv *priv);
 650
 651 /*****************************************************
 652 *  GEOS
 653 ******************************************************/
 654 int iwlcore_init_geos(struct iwl_priv *priv);
 655 void iwlcore_free_geos(struct iwl_priv *priv);
 656
 657 /*************** DRIVER STATUS FUNCTIONS   *****/
 658
 659 #define STATUS_HCMD_ACTIVE      0       /* host command in progress */
 660 /* 1 is unused (used to be STATUS_HCMD_SYNC_ACTIVE) */
 661 #define STATUS_INT_ENABLED      2
 662 #define STATUS_RF_KILL_HW       3
 663 #define STATUS_CT_KILL          4
 664 #define STATUS_INIT             5
 665 #define STATUS_ALIVE            6
 666 #define STATUS_READY            7
 667 #define STATUS_TEMPERATURE      8
 668 #define STATUS_GEO_CONFIGURED   9
 669 #define STATUS_EXIT_PENDING     10
 670 #define STATUS_STATISTICS       12
 671 #define STATUS_SCANNING         13
 672 #define STATUS_SCAN_ABORTING    14
 673 #define STATUS_SCAN_HW          15
 674 #define STATUS_POWER_PMI        16
 675 #define STATUS_FW_ERROR         17
 676
 677
 678 static inline int iwl_is_ready(struct iwl_priv *priv)
 679 {
 680         /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
 681          * set but EXIT_PENDING is not */
 682         return test_bit(STATUS_READY, &priv->status) &&
 683                test_bit(STATUS_GEO_CONFIGURED, &priv->status) &&
 684                !test_bit(STATUS_EXIT_PENDING, &priv->status);
 685 }
 686
 687 static inline int iwl_is_alive(struct iwl_priv *priv)
 688 {
 689         return test_bit(STATUS_ALIVE, &priv->status);
 690 }
 691
 692 static inline int iwl_is_init(struct iwl_priv *priv)
 693 {
 694         return test_bit(STATUS_INIT, &priv->status);
 695 }
 696
 697 static inline int iwl_is_rfkill_hw(struct iwl_priv *priv)
 698 {
 699         return test_bit(STATUS_RF_KILL_HW, &priv->status);
 700 }
 701
 702 static inline int iwl_is_rfkill(struct iwl_priv *priv)
 703 {
 704         return iwl_is_rfkill_hw(priv);
 705 }
 706
 707 static inline int iwl_is_ctkill(struct iwl_priv *priv)
 708 {
 709         return test_bit(STATUS_CT_KILL, &priv->status);
 710 }
 711
 712 static inline int iwl_is_ready_rf(struct iwl_priv *priv)
 713 {
 714
 715         if (iwl_is_rfkill(priv))
 716                 return 0;
 717
 718         return iwl_is_ready(priv);
 719 }
 720
 721 extern void iwl_send_bt_config(struct iwl_priv *priv);
 722 extern int iwl_send_statistics_request(struct iwl_priv *priv,
 723                                        u8 flags, bool clear);
 724 void iwl_apm_stop(struct iwl_priv *priv);
 725 int iwl_apm_init(struct iwl_priv *priv);
 726
 727 int iwl_send_rxon_timing(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 728 static inline int iwl_send_rxon_assoc(struct iwl_priv *priv,
 729                                       struct iwl_rxon_context *ctx)
 730 {
 731         return priv->cfg->ops->hcmd->rxon_assoc(priv, ctx);
 732 }
 733 static inline int iwlcore_commit_rxon(struct iwl_priv *priv,
 734                                       struct iwl_rxon_context *ctx)
 735 {
 736         return priv->cfg->ops->hcmd->commit_rxon(priv, ctx);
 737 }
 738 static inline const struct ieee80211_supported_band *iwl_get_hw_mode(
 739                         struct iwl_priv *priv, enum ieee80211_band band)
 740 {
 741         return priv->hw->wiphy->bands[band];
 742 }
 743
 744 static inline bool iwl_advanced_bt_coexist(struct iwl_priv *priv)
 745 {
 746         return priv->cfg->bt_params &&
 747                priv->cfg->bt_params->advanced_bt_coexist;
 748 }
 749
 750 static inline bool iwl_bt_statistics(struct iwl_priv *priv)
 751 {
 752         return priv->cfg->bt_params && priv->cfg->bt_params->bt_statistics;
 753 }
 754
 755 extern bool bt_coex_active;
 756 extern bool bt_siso_mode;
 757
 758 #endif /* __iwl_core_h__ */