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 };
 116
 117 struct iwl_apm_ops {
 118         int (*init)(struct iwl_priv *priv);
 119         void (*stop)(struct iwl_priv *priv);
 120         void (*config)(struct iwl_priv *priv);
 121         int (*set_pwr_src)(struct iwl_priv *priv, enum iwl_pwr_src src);
 122 };
 123
 124 struct iwl_debugfs_ops {
 125         ssize_t (*rx_stats_read)(struct file *file, char __user *user_buf,
 126                                  size_t count, loff_t *ppos);
 127         ssize_t (*tx_stats_read)(struct file *file, char __user *user_buf,
 128                                  size_t count, loff_t *ppos);
 129         ssize_t (*general_stats_read)(struct file *file, char __user *user_buf,
 130                                       size_t count, loff_t *ppos);
 131         ssize_t (*bt_stats_read)(struct file *file, char __user *user_buf,
 132                                  size_t count, loff_t *ppos);
 133         ssize_t (*reply_tx_error)(struct file *file, char __user *user_buf,
 134                                  size_t count, loff_t *ppos);
 135 };
 136
 137 struct iwl_temp_ops {
 138         void (*temperature)(struct iwl_priv *priv);
 139         void (*set_ct_kill)(struct iwl_priv *priv);
 140         void (*set_calib_version)(struct iwl_priv *priv);
 141 };
 142
 143 struct iwl_tt_ops {
 144         bool (*lower_power_detection)(struct iwl_priv *priv);
 145         u8 (*tt_power_mode)(struct iwl_priv *priv);
 146         bool (*ct_kill_check)(struct iwl_priv *priv);
 147 };
 148
 149 struct iwl_lib_ops {
 150         /* set hw dependent parameters */
 151         int (*set_hw_params)(struct iwl_priv *priv);
 152         /* Handling TX */
 153         void (*txq_update_byte_cnt_tbl)(struct iwl_priv *priv,
 154                                         struct iwl_tx_queue *txq,
 155                                         u16 byte_cnt);
 156         void (*txq_inval_byte_cnt_tbl)(struct iwl_priv *priv,
 157                                        struct iwl_tx_queue *txq);
 158         void (*txq_set_sched)(struct iwl_priv *priv, u32 mask);
 159         int (*txq_attach_buf_to_tfd)(struct iwl_priv *priv,
 160                                      struct iwl_tx_queue *txq,
 161                                      dma_addr_t addr,
 162                                      u16 len, u8 reset, u8 pad);
 163         void (*txq_free_tfd)(struct iwl_priv *priv,
 164                              struct iwl_tx_queue *txq);
 165         int (*txq_init)(struct iwl_priv *priv,
 166                         struct iwl_tx_queue *txq);
 167         /* aggregations */
 168         int (*txq_agg_enable)(struct iwl_priv *priv, int txq_id, int tx_fifo,
 169                               int sta_id, int tid, u16 ssn_idx);
 170         int (*txq_agg_disable)(struct iwl_priv *priv, u16 txq_id, u16 ssn_idx,
 171                                u8 tx_fifo);
 172         /* setup Rx handler */
 173         void (*rx_handler_setup)(struct iwl_priv *priv);
 174         /* setup deferred work */
 175         void (*setup_deferred_work)(struct iwl_priv *priv);
 176         /* cancel deferred work */
 177         void (*cancel_deferred_work)(struct iwl_priv *priv);
 178         /* alive notification after init uCode load */
 179         void (*init_alive_start)(struct iwl_priv *priv);
 180         /* alive notification */
 181         int (*alive_notify)(struct iwl_priv *priv);
 182         /* check validity of rtc data address */
 183         int (*is_valid_rtc_data_addr)(u32 addr);
 184         /* 1st ucode load */
 185         int (*load_ucode)(struct iwl_priv *priv);
 186         int (*dump_nic_event_log)(struct iwl_priv *priv,
 187                                   bool full_log, char **buf, bool display);
 188         void (*dump_nic_error_log)(struct iwl_priv *priv);
 189         void (*dump_csr)(struct iwl_priv *priv);
 190         int (*dump_fh)(struct iwl_priv *priv, char **buf, bool display);
 191         int (*set_channel_switch)(struct iwl_priv *priv,
 192                                   struct ieee80211_channel_switch *ch_switch);
 193         /* power management */
 194         struct iwl_apm_ops apm_ops;
 195
 196         /* power */
 197         int (*send_tx_power) (struct iwl_priv *priv);
 198         void (*update_chain_flags)(struct iwl_priv *priv);
 199         void (*post_associate)(struct iwl_priv *priv,
 200                                struct ieee80211_vif *vif);
 201         void (*config_ap)(struct iwl_priv *priv, struct ieee80211_vif *vif);
 202         irqreturn_t (*isr) (int irq, void *data);
 203
 204         /* eeprom operations (as defined in iwl-eeprom.h) */
 205         struct iwl_eeprom_ops eeprom_ops;
 206
 207         /* temperature */
 208         struct iwl_temp_ops temp_ops;
 209         /* station management */
 210         int (*manage_ibss_station)(struct iwl_priv *priv,
 211                                    struct ieee80211_vif *vif, bool add);
 212         int (*update_bcast_stations)(struct iwl_priv *priv);
 213         /* recover from tx queue stall */
 214         void (*recover_from_tx_stall)(unsigned long data);
 215         /* check for plcp health */
 216         bool (*check_plcp_health)(struct iwl_priv *priv,
 217                                         struct iwl_rx_packet *pkt);
 218         /* check for ack health */
 219         bool (*check_ack_health)(struct iwl_priv *priv,
 220                                         struct iwl_rx_packet *pkt);
 221         int (*txfifo_flush)(struct iwl_priv *priv, u16 flush_control);
 222         void (*dev_txfifo_flush)(struct iwl_priv *priv, u16 flush_control);
 223
 224         struct iwl_debugfs_ops debugfs_ops;
 225
 226         /* thermal throttling */
 227         struct iwl_tt_ops tt_ops;
 228 };
 229
 230 struct iwl_led_ops {
 231         int (*cmd)(struct iwl_priv *priv, struct iwl_led_cmd *led_cmd);
 232         int (*on)(struct iwl_priv *priv);
 233         int (*off)(struct iwl_priv *priv);
 234 };
 235
 236 struct iwl_ops {
 237         const struct iwl_lib_ops *lib;
 238         const struct iwl_hcmd_ops *hcmd;
 239         const struct iwl_hcmd_utils_ops *utils;
 240         const struct iwl_led_ops *led;
 241 };
 242
 243 struct iwl_mod_params {
 244         int sw_crypto;          /* def: 0 = using hardware encryption */
 245         int disable_hw_scan;    /* def: 0 = use h/w scan */
 246         int num_of_queues;      /* def: HW dependent */
 247         int disable_11n;        /* def: 0 = 11n capabilities enabled */
 248         int amsdu_size_8K;      /* def: 1 = enable 8K amsdu size */
 249         int antenna;            /* def: 0 = both antennas (use diversity) */
 250         int restart_fw;         /* def: 1 = restart firmware */
 251 };
 252
 253 /**
 254  * struct iwl_cfg
 255  * @fw_name_pre: Firmware filename prefix. The api version and extension
 256  *      (.ucode) will be added to filename before loading from disk. The
 257  *      filename is constructed as fw_name_pre<api>.ucode.
 258  * @ucode_api_max: Highest version of uCode API supported by driver.
 259  * @ucode_api_min: Lowest version of uCode API supported by driver.
 260  * @pa_type: used by 6000 series only to identify the type of Power Amplifier
 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  * @use_rts_for_aggregation: use rts/cts protection for HT traffic
 267  * @chain_noise_num_beacons: number of beacons used to compute chain noise
 268  * @adv_thermal_throttle: support advance thermal throttle
 269  * @support_ct_kill_exit: support ct kill exit condition
 270  * @support_wimax_coexist: support wimax/wifi co-exist
 271  * @plcp_delta_threshold: plcp error rate threshold used to trigger
 272  *      radio tuning when there is a high receiving plcp error rate
 273  * @chain_noise_scale: default chain noise scale used for gain computation
 274  * @monitor_recover_period: default timer used to check stuck queues
 275  * @temperature_kelvin: temperature report by uCode in kelvin
 276  * @max_event_log_size: size of event log buffer size for ucode event logging
 277  * @tx_power_by_driver: tx power calibration performed by driver
 278  *      instead of uCode
 279  * @ucode_tracing: support ucode continuous tracing
 280  * @sensitivity_calib_by_driver: driver has the capability to perform
 281  *      sensitivity calibration operation
 282  * @chain_noise_calib_by_driver: driver has the capability to perform
 283  *      chain noise calibration operation
 284  * @scan_antennas: available antenna for scan operation
 285  * @advanced_bt_coexist: support advanced bt coexist
 286  * @bt_init_traffic_load: specify initial bt traffic load
 287  * @bt_prio_boost: default bt priority boost value
 288  * @need_dc_calib: need to perform init dc calibration
 289  * @bt_statistics: use BT version of statistics notification
 290  * @agg_time_limit: maximum number of uSec in aggregation
 291  * @ampdu_factor: Maximum A-MPDU length factor
 292  * @ampdu_density: Minimum A-MPDU spacing
 293  *
 294  * We enable the driver to be backward compatible wrt API version. The
 295  * driver specifies which APIs it supports (with @ucode_api_max being the
 296  * highest and @ucode_api_min the lowest). Firmware will only be loaded if
 297  * it has a supported API version. The firmware's API version will be
 298  * stored in @iwl_priv, enabling the driver to make runtime changes based
 299  * on firmware version used.
 300  *
 301  * For example,
 302  * if (IWL_UCODE_API(priv->ucode_ver) >= 2) {
 303  *      Driver interacts with Firmware API version >= 2.
 304  * } else {
 305  *      Driver interacts with Firmware API version 1.
 306  * }
 307  *
 308  * The ideal usage of this infrastructure is to treat a new ucode API
 309  * release as a new hardware revision. That is, through utilizing the
 310  * iwl_hcmd_utils_ops etc. we accommodate different command structures
 311  * and flows between hardware versions (4965/5000) as well as their API
 312  * versions.
 313  *
 314  */
 315 struct iwl_cfg {
 316         const char *name;
 317         const char *fw_name_pre;
 318         const unsigned int ucode_api_max;
 319         const unsigned int ucode_api_min;
 320         unsigned int sku;
 321         int eeprom_size;
 322         u16  eeprom_ver;
 323         u16  eeprom_calib_ver;
 324         int num_of_queues;      /* def: HW dependent */
 325         int num_of_ampdu_queues;/* def: HW dependent */
 326         const struct iwl_ops *ops;
 327         const struct iwl_mod_params *mod_params;
 328         u8   valid_tx_ant;
 329         u8   valid_rx_ant;
 330
 331         /* for iwl_apm_init() */
 332         u32 pll_cfg_val;
 333         bool set_l0s;
 334         bool use_bsm;
 335
 336         bool use_isr_legacy;
 337         enum iwl_pa_type pa_type;
 338         const u16 max_ll_items;
 339         const bool shadow_ram_support;
 340         const bool ht_greenfield_support;
 341         u16 led_compensation;
 342         const bool broken_powersave;
 343         bool use_rts_for_aggregation;
 344         int chain_noise_num_beacons;
 345         const bool supports_idle;
 346         bool adv_thermal_throttle;
 347         bool support_ct_kill_exit;
 348         const bool support_wimax_coexist;
 349         u8 plcp_delta_threshold;
 350         s32 chain_noise_scale;
 351         /* timer period for monitor the driver queues */
 352         u32 monitor_recover_period;
 353         bool temperature_kelvin;
 354         u32 max_event_log_size;
 355         const bool tx_power_by_driver;
 356         const bool ucode_tracing;
 357         const bool sensitivity_calib_by_driver;
 358         const bool chain_noise_calib_by_driver;
 359         u8 scan_rx_antennas[IEEE80211_NUM_BANDS];
 360         u8 scan_tx_antennas[IEEE80211_NUM_BANDS];
 361         bool advanced_bt_coexist;
 362         u8 bt_init_traffic_load;
 363         u8 bt_prio_boost;
 364         const bool need_dc_calib;
 365         const bool bt_statistics;
 366         u16 agg_time_limit;
 367         u8 ampdu_factor;
 368         u8 ampdu_density;
 369 };
 370
 371 /***************************
 372  *   L i b                 *
 373  ***************************/
 374
 375 struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg,
 376                 struct ieee80211_ops *hw_ops);
 377 void iwl_activate_qos(struct iwl_priv *priv);
 378 int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
 379                     const struct ieee80211_tx_queue_params *params);
 380 int iwl_mac_tx_last_beacon(struct ieee80211_hw *hw);
 381 void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
 382                            int hw_decrypt);
 383 int iwl_check_rxon_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 384 int iwl_full_rxon_required(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 385 void iwl_set_rxon_chain(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 386 int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch,
 387                          struct iwl_rxon_context *ctx);
 388 void iwl_set_flags_for_band(struct iwl_priv *priv,
 389                             struct iwl_rxon_context *ctx,
 390                             enum ieee80211_band band,
 391                             struct ieee80211_vif *vif);
 392 u8 iwl_get_single_channel_number(struct iwl_priv *priv,
 393                                   enum ieee80211_band band);
 394 void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf);
 395 bool iwl_is_ht40_tx_allowed(struct iwl_priv *priv,
 396                             struct iwl_rxon_context *ctx,
 397                             struct ieee80211_sta_ht_cap *ht_cap);
 398 void iwl_connection_init_rx_config(struct iwl_priv *priv,
 399                                    struct iwl_rxon_context *ctx);
 400 void iwl_set_rate(struct iwl_priv *priv);
 401 int iwl_set_decrypted_flag(struct iwl_priv *priv,
 402                            struct ieee80211_hdr *hdr,
 403                            u32 decrypt_res,
 404                            struct ieee80211_rx_status *stats);
 405 void iwl_irq_handle_error(struct iwl_priv *priv);
 406 void iwl_post_associate(struct iwl_priv *priv, struct ieee80211_vif *vif);
 407 void iwl_bss_info_changed(struct ieee80211_hw *hw,
 408                                      struct ieee80211_vif *vif,
 409                                      struct ieee80211_bss_conf *bss_conf,
 410                                      u32 changes);
 411 int iwl_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 412 int iwl_mac_add_interface(struct ieee80211_hw *hw,
 413                           struct ieee80211_vif *vif);
 414 void iwl_mac_remove_interface(struct ieee80211_hw *hw,
 415                               struct ieee80211_vif *vif);
 416 int iwl_mac_config(struct ieee80211_hw *hw, u32 changed);
 417 void iwl_config_ap(struct iwl_priv *priv, struct ieee80211_vif *vif);
 418 void iwl_mac_reset_tsf(struct ieee80211_hw *hw);
 419 int iwl_alloc_txq_mem(struct iwl_priv *priv);
 420 void iwl_free_txq_mem(struct iwl_priv *priv);
 421 void iwlcore_tx_cmd_protection(struct iwl_priv *priv,
 422                                struct ieee80211_tx_info *info,
 423                                __le16 fc, __le32 *tx_flags);
 424 #ifdef CONFIG_IWLWIFI_DEBUGFS
 425 int iwl_alloc_traffic_mem(struct iwl_priv *priv);
 426 void iwl_free_traffic_mem(struct iwl_priv *priv);
 427 void iwl_reset_traffic_log(struct iwl_priv *priv);
 428 void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
 429                                 u16 length, struct ieee80211_hdr *header);
 430 void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
 431                                 u16 length, struct ieee80211_hdr *header);
 432 const char *get_mgmt_string(int cmd);
 433 const char *get_ctrl_string(int cmd);
 434 void iwl_clear_traffic_stats(struct iwl_priv *priv);
 435 void iwl_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc,
 436                       u16 len);
 437 #else
 438 static inline int iwl_alloc_traffic_mem(struct iwl_priv *priv)
 439 {
 440         return 0;
 441 }
 442 static inline void iwl_free_traffic_mem(struct iwl_priv *priv)
 443 {
 444 }
 445 static inline void iwl_reset_traffic_log(struct iwl_priv *priv)
 446 {
 447 }
 448 static inline void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
 449                       u16 length, struct ieee80211_hdr *header)
 450 {
 451 }
 452 static inline void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
 453                       u16 length, struct ieee80211_hdr *header)
 454 {
 455 }
 456 static inline void iwl_update_stats(struct iwl_priv *priv, bool is_tx,
 457                                     __le16 fc, u16 len)
 458 {
 459         struct traffic_stats    *stats;
 460
 461         if (is_tx)
 462                 stats = &priv->tx_stats;
 463         else
 464                 stats = &priv->rx_stats;
 465
 466         if (ieee80211_is_data(fc)) {
 467                 /* data */
 468                 stats->data_bytes += len;
 469         }
 470         iwl_leds_background(priv);
 471 }
 472 #endif
 473 /*****************************************************
 474  * RX handlers.
 475  * **************************************************/
 476 void iwl_rx_pm_sleep_notif(struct iwl_priv *priv,
 477                            struct iwl_rx_mem_buffer *rxb);
 478 void iwl_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
 479                                       struct iwl_rx_mem_buffer *rxb);
 480 void iwl_rx_reply_error(struct iwl_priv *priv,
 481                         struct iwl_rx_mem_buffer *rxb);
 482
 483 /*****************************************************
 484 * RX
 485 ******************************************************/
 486 void iwl_cmd_queue_free(struct iwl_priv *priv);
 487 int iwl_rx_queue_alloc(struct iwl_priv *priv);
 488 void iwl_rx_handle(struct iwl_priv *priv);
 489 void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv,
 490                                   struct iwl_rx_queue *q);
 491 int iwl_rx_queue_space(const struct iwl_rx_queue *q);
 492 void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
 493 /* Handlers */
 494 void iwl_rx_spectrum_measure_notif(struct iwl_priv *priv,
 495                                           struct iwl_rx_mem_buffer *rxb);
 496 void iwl_recover_from_statistics(struct iwl_priv *priv,
 497                                 struct iwl_rx_packet *pkt);
 498 void iwl_chswitch_done(struct iwl_priv *priv, bool is_success);
 499 void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
 500
 501 /* TX helpers */
 502
 503 /*****************************************************
 504 * TX
 505 ******************************************************/
 506 void iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq);
 507 int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv,
 508                                  struct iwl_tx_queue *txq,
 509                                  dma_addr_t addr, u16 len, u8 reset, u8 pad);
 510 int iwl_hw_tx_queue_init(struct iwl_priv *priv,
 511                          struct iwl_tx_queue *txq);
 512 void iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq);
 513 int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
 514                       int slots_num, u32 txq_id);
 515 void iwl_tx_queue_reset(struct iwl_priv *priv, struct iwl_tx_queue *txq,
 516                         int slots_num, u32 txq_id);
 517 void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id);
 518 /*****************************************************
 519  * TX power
 520  ****************************************************/
 521 int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force);
 522
 523 /*******************************************************************************
 524  * Rate
 525  ******************************************************************************/
 526
 527 int iwl_hwrate_to_plcp_idx(u32 rate_n_flags);
 528
 529 u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv,
 530                             struct iwl_rxon_context *ctx);
 531
 532 u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant_idx, u8 valid);
 533
 534 static inline u32 iwl_ant_idx_to_flags(u8 ant_idx)
 535 {
 536         return BIT(ant_idx) << RATE_MCS_ANT_POS;
 537 }
 538
 539 static inline u8 iwl_hw_get_rate(__le32 rate_n_flags)
 540 {
 541         return le32_to_cpu(rate_n_flags) & 0xFF;
 542 }
 543 static inline u32 iwl_hw_get_rate_n_flags(__le32 rate_n_flags)
 544 {
 545         return le32_to_cpu(rate_n_flags) & 0x1FFFF;
 546 }
 547 static inline __le32 iwl_hw_set_rate_n_flags(u8 rate, u32 flags)
 548 {
 549         return cpu_to_le32(flags|(u32)rate);
 550 }
 551
 552 /*******************************************************************************
 553  * Scanning
 554  ******************************************************************************/
 555 void iwl_init_scan_params(struct iwl_priv *priv);
 556 int iwl_scan_cancel(struct iwl_priv *priv);
 557 int iwl_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms);
 558 void iwl_force_scan_end(struct iwl_priv *priv);
 559 int iwl_mac_hw_scan(struct ieee80211_hw *hw,
 560                     struct ieee80211_vif *vif,
 561                     struct cfg80211_scan_request *req);
 562 void iwl_internal_short_hw_scan(struct iwl_priv *priv);
 563 int iwl_force_reset(struct iwl_priv *priv, int mode, bool external);
 564 u16 iwl_fill_probe_req(struct iwl_priv *priv, struct ieee80211_mgmt *frame,
 565                        const u8 *ta, const u8 *ie, int ie_len, int left);
 566 void iwl_setup_rx_scan_handlers(struct iwl_priv *priv);
 567 u16 iwl_get_active_dwell_time(struct iwl_priv *priv,
 568                               enum ieee80211_band band,
 569                               u8 n_probes);
 570 u16 iwl_get_passive_dwell_time(struct iwl_priv *priv,
 571                                enum ieee80211_band band,
 572                                struct ieee80211_vif *vif);
 573 void iwl_setup_scan_deferred_work(struct iwl_priv *priv);
 574 void iwl_cancel_scan_deferred_work(struct iwl_priv *priv);
 575
 576 /* For faster active scanning, scan will move to the next channel if fewer than
 577  * PLCP_QUIET_THRESH packets are heard on this channel within
 578  * ACTIVE_QUIET_TIME after sending probe request.  This shortens the dwell
 579  * time if it's a quiet channel (nothing responded to our probe, and there's
 580  * no other traffic).
 581  * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
 582 #define IWL_ACTIVE_QUIET_TIME       cpu_to_le16(10)  /* msec */
 583 #define IWL_PLCP_QUIET_THRESH       cpu_to_le16(1)  /* packets */
 584
 585 #define IWL_SCAN_CHECK_WATCHDOG         (HZ * 7)
 586
 587 /*******************************************************************************
 588  * Calibrations - implemented in iwl-calib.c
 589  ******************************************************************************/
 590 int iwl_send_calib_results(struct iwl_priv *priv);
 591 int iwl_calib_set(struct iwl_calib_result *res, const u8 *buf, int len);
 592 void iwl_calib_free_results(struct iwl_priv *priv);
 593
 594 /*****************************************************
 595  *   S e n d i n g     H o s t     C o m m a n d s   *
 596  *****************************************************/
 597
 598 const char *get_cmd_string(u8 cmd);
 599 int __must_check iwl_send_cmd_sync(struct iwl_priv *priv,
 600                                    struct iwl_host_cmd *cmd);
 601 int iwl_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 602 int __must_check iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id,
 603                                   u16 len, const void *data);
 604 int iwl_send_cmd_pdu_async(struct iwl_priv *priv, u8 id, u16 len,
 605                            const void *data,
 606                            void (*callback)(struct iwl_priv *priv,
 607                                             struct iwl_device_cmd *cmd,
 608                                             struct iwl_rx_packet *pkt));
 609
 610 int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 611
 612
 613 /*****************************************************
 614  * PCI                                               *
 615  *****************************************************/
 616 irqreturn_t iwl_isr_legacy(int irq, void *data);
 617
 618 static inline u16 iwl_pcie_link_ctl(struct iwl_priv *priv)
 619 {
 620         int pos;
 621         u16 pci_lnk_ctl;
 622         pos = pci_find_capability(priv->pci_dev, PCI_CAP_ID_EXP);
 623         pci_read_config_word(priv->pci_dev, pos + PCI_EXP_LNKCTL, &pci_lnk_ctl);
 624         return pci_lnk_ctl;
 625 }
 626
 627 void iwl_bg_monitor_recover(unsigned long data);
 628 u32 iwl_usecs_to_beacons(struct iwl_priv *priv, u32 usec, u32 beacon_interval);
 629 __le32 iwl_add_beacon_time(struct iwl_priv *priv, u32 base,
 630                            u32 addon, u32 beacon_interval);
 631
 632 #ifdef CONFIG_PM
 633 int iwl_pci_suspend(struct pci_dev *pdev, pm_message_t state);
 634 int iwl_pci_resume(struct pci_dev *pdev);
 635 #endif /* CONFIG_PM */
 636
 637 /*****************************************************
 638 *  Error Handling Debugging
 639 ******************************************************/
 640 void iwl_dump_nic_error_log(struct iwl_priv *priv);
 641 int iwl_dump_nic_event_log(struct iwl_priv *priv,
 642                            bool full_log, char **buf, bool display);
 643 void iwl_dump_csr(struct iwl_priv *priv);
 644 int iwl_dump_fh(struct iwl_priv *priv, char **buf, bool display);
 645 #ifdef CONFIG_IWLWIFI_DEBUG
 646 void iwl_print_rx_config_cmd(struct iwl_priv *priv,
 647                              struct iwl_rxon_context *ctx);
 648 #else
 649 static inline void iwl_print_rx_config_cmd(struct iwl_priv *priv,
 650                                            struct iwl_rxon_context *ctx)
 651 {
 652 }
 653 #endif
 654
 655 void iwl_clear_isr_stats(struct iwl_priv *priv);
 656
 657 /*****************************************************
 658 *  GEOS
 659 ******************************************************/
 660 int iwlcore_init_geos(struct iwl_priv *priv);
 661 void iwlcore_free_geos(struct iwl_priv *priv);
 662
 663 /*************** DRIVER STATUS FUNCTIONS   *****/
 664
 665 #define STATUS_HCMD_ACTIVE      0       /* host command in progress */
 666 /* 1 is unused (used to be STATUS_HCMD_SYNC_ACTIVE) */
 667 #define STATUS_INT_ENABLED      2
 668 #define STATUS_RF_KILL_HW       3
 669 #define STATUS_CT_KILL          4
 670 #define STATUS_INIT             5
 671 #define STATUS_ALIVE            6
 672 #define STATUS_READY            7
 673 #define STATUS_TEMPERATURE      8
 674 #define STATUS_GEO_CONFIGURED   9
 675 #define STATUS_EXIT_PENDING     10
 676 #define STATUS_STATISTICS       12
 677 #define STATUS_SCANNING         13
 678 #define STATUS_SCAN_ABORTING    14
 679 #define STATUS_SCAN_HW          15
 680 #define STATUS_POWER_PMI        16
 681 #define STATUS_FW_ERROR         17
 682
 683
 684 static inline int iwl_is_ready(struct iwl_priv *priv)
 685 {
 686         /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
 687          * set but EXIT_PENDING is not */
 688         return test_bit(STATUS_READY, &priv->status) &&
 689                test_bit(STATUS_GEO_CONFIGURED, &priv->status) &&
 690                !test_bit(STATUS_EXIT_PENDING, &priv->status);
 691 }
 692
 693 static inline int iwl_is_alive(struct iwl_priv *priv)
 694 {
 695         return test_bit(STATUS_ALIVE, &priv->status);
 696 }
 697
 698 static inline int iwl_is_init(struct iwl_priv *priv)
 699 {
 700         return test_bit(STATUS_INIT, &priv->status);
 701 }
 702
 703 static inline int iwl_is_rfkill_hw(struct iwl_priv *priv)
 704 {
 705         return test_bit(STATUS_RF_KILL_HW, &priv->status);
 706 }
 707
 708 static inline int iwl_is_rfkill(struct iwl_priv *priv)
 709 {
 710         return iwl_is_rfkill_hw(priv);
 711 }
 712
 713 static inline int iwl_is_ctkill(struct iwl_priv *priv)
 714 {
 715         return test_bit(STATUS_CT_KILL, &priv->status);
 716 }
 717
 718 static inline int iwl_is_ready_rf(struct iwl_priv *priv)
 719 {
 720
 721         if (iwl_is_rfkill(priv))
 722                 return 0;
 723
 724         return iwl_is_ready(priv);
 725 }
 726
 727 extern void iwl_send_bt_config(struct iwl_priv *priv);
 728 extern int iwl_send_statistics_request(struct iwl_priv *priv,
 729                                        u8 flags, bool clear);
 730 extern int iwl_send_lq_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
 731                 struct iwl_link_quality_cmd *lq, u8 flags, bool init);
 732 void iwl_apm_stop(struct iwl_priv *priv);
 733 int iwl_apm_init(struct iwl_priv *priv);
 734
 735 int iwl_send_rxon_timing(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 736 static inline int iwl_send_rxon_assoc(struct iwl_priv *priv,
 737                                       struct iwl_rxon_context *ctx)
 738 {
 739         return priv->cfg->ops->hcmd->rxon_assoc(priv, ctx);
 740 }
 741 static inline int iwlcore_commit_rxon(struct iwl_priv *priv,
 742                                       struct iwl_rxon_context *ctx)
 743 {
 744         return priv->cfg->ops->hcmd->commit_rxon(priv, ctx);
 745 }
 746 static inline void iwlcore_config_ap(struct iwl_priv *priv,
 747                                      struct ieee80211_vif *vif)
 748 {
 749         priv->cfg->ops->lib->config_ap(priv, vif);
 750 }
 751 static inline const struct ieee80211_supported_band *iwl_get_hw_mode(
 752                         struct iwl_priv *priv, enum ieee80211_band band)
 753 {
 754         return priv->hw->wiphy->bands[band];
 755 }
 756
 757 extern bool bt_coex_active;
 758 extern bool bt_siso_mode;
 759
 760 #endif /* __iwl_core_h__ */