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 (*stop)(struct iwl_priv *priv);
 121         void (*config)(struct iwl_priv *priv);
 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 };
 140
 141 struct iwl_tt_ops {
 142         bool (*lower_power_detection)(struct iwl_priv *priv);
 143         u8 (*tt_power_mode)(struct iwl_priv *priv);
 144         bool (*ct_kill_check)(struct iwl_priv *priv);
 145 };
 146
 147 struct iwl_lib_ops {
 148         /* set hw dependent parameters */
 149         int (*set_hw_params)(struct iwl_priv *priv);
 150         /* Handling TX */
 151         void (*txq_update_byte_cnt_tbl)(struct iwl_priv *priv,
 152                                         struct iwl_tx_queue *txq,
 153                                         u16 byte_cnt);
 154         void (*txq_inval_byte_cnt_tbl)(struct iwl_priv *priv,
 155                                        struct iwl_tx_queue *txq);
 156         void (*txq_set_sched)(struct iwl_priv *priv, u32 mask);
 157         int (*txq_attach_buf_to_tfd)(struct iwl_priv *priv,
 158                                      struct iwl_tx_queue *txq,
 159                                      dma_addr_t addr,
 160                                      u16 len, u8 reset, u8 pad);
 161         void (*txq_free_tfd)(struct iwl_priv *priv,
 162                              struct iwl_tx_queue *txq);
 163         int (*txq_init)(struct iwl_priv *priv,
 164                         struct iwl_tx_queue *txq);
 165         /* aggregations */
 166         int (*txq_agg_enable)(struct iwl_priv *priv, int txq_id, int tx_fifo,
 167                               int sta_id, int tid, u16 ssn_idx);
 168         int (*txq_agg_disable)(struct iwl_priv *priv, u16 txq_id, u16 ssn_idx,
 169                                u8 tx_fifo);
 170         /* setup Rx handler */
 171         void (*rx_handler_setup)(struct iwl_priv *priv);
 172         /* setup deferred work */
 173         void (*setup_deferred_work)(struct iwl_priv *priv);
 174         /* cancel deferred work */
 175         void (*cancel_deferred_work)(struct iwl_priv *priv);
 176         /* alive notification after init uCode load */
 177         void (*init_alive_start)(struct iwl_priv *priv);
 178         /* alive notification */
 179         int (*alive_notify)(struct iwl_priv *priv);
 180         /* check validity of rtc data address */
 181         int (*is_valid_rtc_data_addr)(u32 addr);
 182         /* 1st ucode load */
 183         int (*load_ucode)(struct iwl_priv *priv);
 184         int (*dump_nic_event_log)(struct iwl_priv *priv,
 185                                   bool full_log, char **buf, bool display);
 186         void (*dump_nic_error_log)(struct iwl_priv *priv);
 187         void (*dump_csr)(struct iwl_priv *priv);
 188         int (*dump_fh)(struct iwl_priv *priv, char **buf, bool display);
 189         int (*set_channel_switch)(struct iwl_priv *priv,
 190                                   struct ieee80211_channel_switch *ch_switch);
 191         /* power management */
 192         struct iwl_apm_ops apm_ops;
 193
 194         /* power */
 195         int (*send_tx_power) (struct iwl_priv *priv);
 196         void (*update_chain_flags)(struct iwl_priv *priv);
 197         void (*post_associate)(struct iwl_priv *priv,
 198                                struct ieee80211_vif *vif);
 199         void (*config_ap)(struct iwl_priv *priv, struct ieee80211_vif *vif);
 200         irqreturn_t (*isr) (int irq, void *data);
 201
 202         /* eeprom operations (as defined in iwl-eeprom.h) */
 203         struct iwl_eeprom_ops eeprom_ops;
 204
 205         /* temperature */
 206         struct iwl_temp_ops temp_ops;
 207         /* station management */
 208         int (*manage_ibss_station)(struct iwl_priv *priv,
 209                                    struct ieee80211_vif *vif, bool add);
 210         int (*update_bcast_stations)(struct iwl_priv *priv);
 211         /* recover from tx queue stall */
 212         void (*recover_from_tx_stall)(unsigned long data);
 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         int (*on)(struct iwl_priv *priv);
 231         int (*off)(struct iwl_priv *priv);
 232 };
 233
 234 /* NIC specific ops */
 235 struct iwl_nic_ops {
 236         void (*additional_nic_config)(struct iwl_priv *priv);
 237 };
 238
 239 struct iwl_ops {
 240         const struct iwl_lib_ops *lib;
 241         const struct iwl_hcmd_ops *hcmd;
 242         const struct iwl_hcmd_utils_ops *utils;
 243         const struct iwl_led_ops *led;
 244         const struct iwl_nic_ops *nic;
 245 };
 246
 247 struct iwl_mod_params {
 248         int sw_crypto;          /* def: 0 = using hardware encryption */
 249         int disable_hw_scan;    /* def: 0 = use h/w scan */
 250         int num_of_queues;      /* def: HW dependent */
 251         int disable_11n;        /* def: 0 = 11n capabilities enabled */
 252         int amsdu_size_8K;      /* def: 1 = enable 8K amsdu size */
 253         int antenna;            /* def: 0 = both antennas (use diversity) */
 254         int restart_fw;         /* def: 1 = restart firmware */
 255 };
 256
 257 /*
 258  * @max_ll_items: max number of OTP blocks
 259  * @shadow_ram_support: shadow support for OTP memory
 260  * @led_compensation: compensate on the led on/off time per HW according
 261  *      to the deviation to achieve the desired led frequency.
 262  *      The detail algorithm is described in iwl-led.c
 263  * @chain_noise_num_beacons: number of beacons used to compute chain noise
 264  * @adv_thermal_throttle: support advance thermal throttle
 265  * @support_ct_kill_exit: support ct kill exit condition
 266  * @support_wimax_coexist: support wimax/wifi co-exist
 267  * @plcp_delta_threshold: plcp error rate threshold used to trigger
 268  *      radio tuning when there is a high receiving plcp error rate
 269  * @chain_noise_scale: default chain noise scale used for gain computation
 270  * @monitor_recover_period: default timer used to check stuck queues
 271  * @temperature_kelvin: temperature report by uCode in kelvin
 272  * @max_event_log_size: size of event log buffer size for ucode event logging
 273  * @tx_power_by_driver: tx power calibration performed by driver
 274  *      instead of uCode
 275  * @ucode_tracing: support ucode continuous tracing
 276  * @sensitivity_calib_by_driver: driver has the capability to perform
 277  *      sensitivity calibration operation
 278  * @chain_noise_calib_by_driver: driver has the capability to perform
 279  *      chain noise calibration operation
 280 */
 281 struct iwl_base_params {
 282         int eeprom_size;
 283         int num_of_queues;      /* def: HW dependent */
 284         int num_of_ampdu_queues;/* def: HW dependent */
 285         /* for iwl_apm_init() */
 286         u32 pll_cfg_val;
 287         bool set_l0s;
 288         bool use_bsm;
 289
 290         bool use_isr_legacy;
 291         const u16 max_ll_items;
 292         const bool shadow_ram_support;
 293         u16 led_compensation;
 294         const bool broken_powersave;
 295         int chain_noise_num_beacons;
 296         const bool supports_idle;
 297         bool adv_thermal_throttle;
 298         bool support_ct_kill_exit;
 299         const bool support_wimax_coexist;
 300         u8 plcp_delta_threshold;
 301         s32 chain_noise_scale;
 302         /* timer period for monitor the driver queues */
 303         u32 monitor_recover_period;
 304         bool temperature_kelvin;
 305         u32 max_event_log_size;
 306         const bool tx_power_by_driver;
 307         const bool ucode_tracing;
 308         const bool sensitivity_calib_by_driver;
 309         const bool chain_noise_calib_by_driver;
 310 };
 311 /*
 312  * @advanced_bt_coexist: support advanced bt coexist
 313  * @bt_init_traffic_load: specify initial bt traffic load
 314  * @bt_prio_boost: default bt priority boost value
 315  * @bt_statistics: use BT version of statistics notification
 316  * @agg_time_limit: maximum number of uSec in aggregation
 317  * @ampdu_factor: Maximum A-MPDU length factor
 318  * @ampdu_density: Minimum A-MPDU spacing
 319 */
 320 struct iwl_bt_params {
 321         bool advanced_bt_coexist;
 322         u8 bt_init_traffic_load;
 323         u8 bt_prio_boost;
 324         const bool bt_statistics;
 325         u16 agg_time_limit;
 326         u8 ampdu_factor;
 327         u8 ampdu_density;
 328 };
 329 /*
 330  * @use_rts_for_aggregation: use rts/cts protection for HT traffic
 331 */
 332 struct iwl_ht_params {
 333         const bool ht_greenfield_support; /* if used set to true */
 334         bool use_rts_for_aggregation;
 335 };
 336
 337 /**
 338  * struct iwl_cfg
 339  * @fw_name_pre: Firmware filename prefix. The api version and extension
 340  *      (.ucode) will be added to filename before loading from disk. The
 341  *      filename is constructed as fw_name_pre<api>.ucode.
 342  * @ucode_api_max: Highest version of uCode API supported by driver.
 343  * @ucode_api_min: Lowest version of uCode API supported by driver.
 344  * @pa_type: used by 6000 series only to identify the type of Power Amplifier
 345  * @need_dc_calib: need to perform init dc calibration
 346  * @scan_antennas: available antenna for scan operation
 347  *
 348  * We enable the driver to be backward compatible wrt API version. The
 349  * driver specifies which APIs it supports (with @ucode_api_max being the
 350  * highest and @ucode_api_min the lowest). Firmware will only be loaded if
 351  * it has a supported API version. The firmware's API version will be
 352  * stored in @iwl_priv, enabling the driver to make runtime changes based
 353  * on firmware version used.
 354  *
 355  * For example,
 356  * if (IWL_UCODE_API(priv->ucode_ver) >= 2) {
 357  *      Driver interacts with Firmware API version >= 2.
 358  * } else {
 359  *      Driver interacts with Firmware API version 1.
 360  * }
 361  *
 362  * The ideal usage of this infrastructure is to treat a new ucode API
 363  * release as a new hardware revision. That is, through utilizing the
 364  * iwl_hcmd_utils_ops etc. we accommodate different command structures
 365  * and flows between hardware versions (4965/5000) as well as their API
 366  * versions.
 367  *
 368  */
 369 struct iwl_cfg {
 370         /* params specific to an individual device within a device family */
 371         const char *name;
 372         const char *fw_name_pre;
 373         const unsigned int ucode_api_max;
 374         const unsigned int ucode_api_min;
 375         u8   valid_tx_ant;
 376         u8   valid_rx_ant;
 377         unsigned int sku;
 378         u16  eeprom_ver;
 379         u16  eeprom_calib_ver;
 380         const struct iwl_ops *ops;
 381         /* module based parameters which can be set from modprobe cmd */
 382         const struct iwl_mod_params *mod_params;
 383         /* params not likely to change within a device family */
 384         struct iwl_base_params *base_params;
 385         /* params likely to change within a device family */
 386         struct iwl_ht_params *ht_params;
 387         struct iwl_bt_params *bt_params;
 388         enum iwl_pa_type pa_type;         /* if used set to IWL_PA_SYSTEM */
 389         const bool need_dc_calib;         /* if used set to true */
 390         u8 scan_rx_antennas[IEEE80211_NUM_BANDS];
 391         u8 scan_tx_antennas[IEEE80211_NUM_BANDS];
 392 };
 393
 394 /***************************
 395  *   L i b                 *
 396  ***************************/
 397
 398 struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg,
 399                 struct ieee80211_ops *hw_ops);
 400 void iwl_activate_qos(struct iwl_priv *priv);
 401 int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
 402                     const struct ieee80211_tx_queue_params *params);
 403 int iwl_mac_tx_last_beacon(struct ieee80211_hw *hw);
 404 void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
 405                            int hw_decrypt);
 406 int iwl_check_rxon_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 407 int iwl_full_rxon_required(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 408 int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch,
 409                          struct iwl_rxon_context *ctx);
 410 void iwl_set_flags_for_band(struct iwl_priv *priv,
 411                             struct iwl_rxon_context *ctx,
 412                             enum ieee80211_band band,
 413                             struct ieee80211_vif *vif);
 414 u8 iwl_get_single_channel_number(struct iwl_priv *priv,
 415                                   enum ieee80211_band band);
 416 void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf);
 417 bool iwl_is_ht40_tx_allowed(struct iwl_priv *priv,
 418                             struct iwl_rxon_context *ctx,
 419                             struct ieee80211_sta_ht_cap *ht_cap);
 420 void iwl_connection_init_rx_config(struct iwl_priv *priv,
 421                                    struct iwl_rxon_context *ctx);
 422 void iwl_set_rate(struct iwl_priv *priv);
 423 int iwl_set_decrypted_flag(struct iwl_priv *priv,
 424                            struct ieee80211_hdr *hdr,
 425                            u32 decrypt_res,
 426                            struct ieee80211_rx_status *stats);
 427 void iwl_irq_handle_error(struct iwl_priv *priv);
 428 void iwl_post_associate(struct iwl_priv *priv, struct ieee80211_vif *vif);
 429 void iwl_bss_info_changed(struct ieee80211_hw *hw,
 430                                      struct ieee80211_vif *vif,
 431                                      struct ieee80211_bss_conf *bss_conf,
 432                                      u32 changes);
 433 int iwl_mac_add_interface(struct ieee80211_hw *hw,
 434                           struct ieee80211_vif *vif);
 435 void iwl_mac_remove_interface(struct ieee80211_hw *hw,
 436                               struct ieee80211_vif *vif);
 437 int iwl_mac_config(struct ieee80211_hw *hw, u32 changed);
 438 void iwl_config_ap(struct iwl_priv *priv, struct ieee80211_vif *vif);
 439 void iwl_mac_reset_tsf(struct ieee80211_hw *hw);
 440 int iwl_alloc_txq_mem(struct iwl_priv *priv);
 441 void iwl_free_txq_mem(struct iwl_priv *priv);
 442 void iwlcore_tx_cmd_protection(struct iwl_priv *priv,
 443                                struct ieee80211_tx_info *info,
 444                                __le16 fc, __le32 *tx_flags);
 445 #ifdef CONFIG_IWLWIFI_DEBUGFS
 446 int iwl_alloc_traffic_mem(struct iwl_priv *priv);
 447 void iwl_free_traffic_mem(struct iwl_priv *priv);
 448 void iwl_reset_traffic_log(struct iwl_priv *priv);
 449 void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
 450                                 u16 length, struct ieee80211_hdr *header);
 451 void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
 452                                 u16 length, struct ieee80211_hdr *header);
 453 const char *get_mgmt_string(int cmd);
 454 const char *get_ctrl_string(int cmd);
 455 void iwl_clear_traffic_stats(struct iwl_priv *priv);
 456 void iwl_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc,
 457                       u16 len);
 458 #else
 459 static inline int iwl_alloc_traffic_mem(struct iwl_priv *priv)
 460 {
 461         return 0;
 462 }
 463 static inline void iwl_free_traffic_mem(struct iwl_priv *priv)
 464 {
 465 }
 466 static inline void iwl_reset_traffic_log(struct iwl_priv *priv)
 467 {
 468 }
 469 static inline void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
 470                       u16 length, struct ieee80211_hdr *header)
 471 {
 472 }
 473 static inline void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
 474                       u16 length, struct ieee80211_hdr *header)
 475 {
 476 }
 477 static inline void iwl_update_stats(struct iwl_priv *priv, bool is_tx,
 478                                     __le16 fc, u16 len)
 479 {
 480         struct traffic_stats    *stats;
 481
 482         if (is_tx)
 483                 stats = &priv->tx_stats;
 484         else
 485                 stats = &priv->rx_stats;
 486
 487         if (ieee80211_is_data(fc)) {
 488                 /* data */
 489                 stats->data_bytes += len;
 490         }
 491         iwl_leds_background(priv);
 492 }
 493 #endif
 494 /*****************************************************
 495  * RX handlers.
 496  * **************************************************/
 497 void iwl_rx_pm_sleep_notif(struct iwl_priv *priv,
 498                            struct iwl_rx_mem_buffer *rxb);
 499 void iwl_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
 500                                       struct iwl_rx_mem_buffer *rxb);
 501 void iwl_rx_reply_error(struct iwl_priv *priv,
 502                         struct iwl_rx_mem_buffer *rxb);
 503
 504 /*****************************************************
 505 * RX
 506 ******************************************************/
 507 void iwl_cmd_queue_free(struct iwl_priv *priv);
 508 int iwl_rx_queue_alloc(struct iwl_priv *priv);
 509 void iwl_rx_handle(struct iwl_priv *priv);
 510 void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv,
 511                                   struct iwl_rx_queue *q);
 512 int iwl_rx_queue_space(const struct iwl_rx_queue *q);
 513 void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
 514 /* Handlers */
 515 void iwl_rx_spectrum_measure_notif(struct iwl_priv *priv,
 516                                           struct iwl_rx_mem_buffer *rxb);
 517 void iwl_recover_from_statistics(struct iwl_priv *priv,
 518                                 struct iwl_rx_packet *pkt);
 519 void iwl_chswitch_done(struct iwl_priv *priv, bool is_success);
 520 void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
 521
 522 /* TX helpers */
 523
 524 /*****************************************************
 525 * TX
 526 ******************************************************/
 527 void iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq);
 528 int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv,
 529                                  struct iwl_tx_queue *txq,
 530                                  dma_addr_t addr, u16 len, u8 reset, u8 pad);
 531 int iwl_hw_tx_queue_init(struct iwl_priv *priv,
 532                          struct iwl_tx_queue *txq);
 533 void iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq);
 534 int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
 535                       int slots_num, u32 txq_id);
 536 void iwl_tx_queue_reset(struct iwl_priv *priv, struct iwl_tx_queue *txq,
 537                         int slots_num, u32 txq_id);
 538 void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id);
 539 /*****************************************************
 540  * TX power
 541  ****************************************************/
 542 int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force);
 543
 544 /*******************************************************************************
 545  * Rate
 546  ******************************************************************************/
 547
 548 u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv,
 549                             struct iwl_rxon_context *ctx);
 550
 551 static inline u32 iwl_ant_idx_to_flags(u8 ant_idx)
 552 {
 553         return BIT(ant_idx) << RATE_MCS_ANT_POS;
 554 }
 555
 556 static inline u8 iwl_hw_get_rate(__le32 rate_n_flags)
 557 {
 558         return le32_to_cpu(rate_n_flags) & 0xFF;
 559 }
 560 static inline u32 iwl_hw_get_rate_n_flags(__le32 rate_n_flags)
 561 {
 562         return le32_to_cpu(rate_n_flags) & 0x1FFFF;
 563 }
 564 static inline __le32 iwl_hw_set_rate_n_flags(u8 rate, u32 flags)
 565 {
 566         return cpu_to_le32(flags|(u32)rate);
 567 }
 568
 569 /*******************************************************************************
 570  * Scanning
 571  ******************************************************************************/
 572 void iwl_init_scan_params(struct iwl_priv *priv);
 573 int iwl_scan_cancel(struct iwl_priv *priv);
 574 int iwl_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms);
 575 void iwl_force_scan_end(struct iwl_priv *priv);
 576 int iwl_mac_hw_scan(struct ieee80211_hw *hw,
 577                     struct ieee80211_vif *vif,
 578                     struct cfg80211_scan_request *req);
 579 void iwl_internal_short_hw_scan(struct iwl_priv *priv);
 580 int iwl_force_reset(struct iwl_priv *priv, int mode, bool external);
 581 u16 iwl_fill_probe_req(struct iwl_priv *priv, struct ieee80211_mgmt *frame,
 582                        const u8 *ta, const u8 *ie, int ie_len, int left);
 583 void iwl_setup_rx_scan_handlers(struct iwl_priv *priv);
 584 u16 iwl_get_active_dwell_time(struct iwl_priv *priv,
 585                               enum ieee80211_band band,
 586                               u8 n_probes);
 587 u16 iwl_get_passive_dwell_time(struct iwl_priv *priv,
 588                                enum ieee80211_band band,
 589                                struct ieee80211_vif *vif);
 590 void iwl_setup_scan_deferred_work(struct iwl_priv *priv);
 591 void iwl_cancel_scan_deferred_work(struct iwl_priv *priv);
 592
 593 /* For faster active scanning, scan will move to the next channel if fewer than
 594  * PLCP_QUIET_THRESH packets are heard on this channel within
 595  * ACTIVE_QUIET_TIME after sending probe request.  This shortens the dwell
 596  * time if it's a quiet channel (nothing responded to our probe, and there's
 597  * no other traffic).
 598  * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
 599 #define IWL_ACTIVE_QUIET_TIME       cpu_to_le16(10)  /* msec */
 600 #define IWL_PLCP_QUIET_THRESH       cpu_to_le16(1)  /* packets */
 601
 602 #define IWL_SCAN_CHECK_WATCHDOG         (HZ * 7)
 603
 604 /*******************************************************************************
 605  * Calibrations - implemented in iwl-calib.c
 606  ******************************************************************************/
 607 int iwl_send_calib_results(struct iwl_priv *priv);
 608 int iwl_calib_set(struct iwl_calib_result *res, const u8 *buf, int len);
 609 void iwl_calib_free_results(struct iwl_priv *priv);
 610
 611 /*****************************************************
 612  *   S e n d i n g     H o s t     C o m m a n d s   *
 613  *****************************************************/
 614
 615 const char *get_cmd_string(u8 cmd);
 616 int __must_check iwl_send_cmd_sync(struct iwl_priv *priv,
 617                                    struct iwl_host_cmd *cmd);
 618 int iwl_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 619 int __must_check iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id,
 620                                   u16 len, const void *data);
 621 int iwl_send_cmd_pdu_async(struct iwl_priv *priv, u8 id, u16 len,
 622                            const void *data,
 623                            void (*callback)(struct iwl_priv *priv,
 624                                             struct iwl_device_cmd *cmd,
 625                                             struct iwl_rx_packet *pkt));
 626
 627 int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 628
 629
 630 /*****************************************************
 631  * PCI                                               *
 632  *****************************************************/
 633 irqreturn_t iwl_isr_legacy(int irq, void *data);
 634
 635 static inline u16 iwl_pcie_link_ctl(struct iwl_priv *priv)
 636 {
 637         int pos;
 638         u16 pci_lnk_ctl;
 639         pos = pci_find_capability(priv->pci_dev, PCI_CAP_ID_EXP);
 640         pci_read_config_word(priv->pci_dev, pos + PCI_EXP_LNKCTL, &pci_lnk_ctl);
 641         return pci_lnk_ctl;
 642 }
 643
 644 void iwl_bg_monitor_recover(unsigned long data);
 645 u32 iwl_usecs_to_beacons(struct iwl_priv *priv, u32 usec, u32 beacon_interval);
 646 __le32 iwl_add_beacon_time(struct iwl_priv *priv, u32 base,
 647                            u32 addon, u32 beacon_interval);
 648
 649 #ifdef CONFIG_PM
 650 int iwl_pci_suspend(struct pci_dev *pdev, pm_message_t state);
 651 int iwl_pci_resume(struct pci_dev *pdev);
 652 #endif /* CONFIG_PM */
 653
 654 /*****************************************************
 655 *  Error Handling Debugging
 656 ******************************************************/
 657 void iwl_dump_nic_error_log(struct iwl_priv *priv);
 658 int iwl_dump_nic_event_log(struct iwl_priv *priv,
 659                            bool full_log, char **buf, bool display);
 660 #ifdef CONFIG_IWLWIFI_DEBUG
 661 void iwl_print_rx_config_cmd(struct iwl_priv *priv,
 662                              struct iwl_rxon_context *ctx);
 663 #else
 664 static inline void iwl_print_rx_config_cmd(struct iwl_priv *priv,
 665                                            struct iwl_rxon_context *ctx)
 666 {
 667 }
 668 #endif
 669
 670 void iwl_clear_isr_stats(struct iwl_priv *priv);
 671
 672 /*****************************************************
 673 *  GEOS
 674 ******************************************************/
 675 int iwlcore_init_geos(struct iwl_priv *priv);
 676 void iwlcore_free_geos(struct iwl_priv *priv);
 677
 678 /*************** DRIVER STATUS FUNCTIONS   *****/
 679
 680 #define STATUS_HCMD_ACTIVE      0       /* host command in progress */
 681 /* 1 is unused (used to be STATUS_HCMD_SYNC_ACTIVE) */
 682 #define STATUS_INT_ENABLED      2
 683 #define STATUS_RF_KILL_HW       3
 684 #define STATUS_CT_KILL          4
 685 #define STATUS_INIT             5
 686 #define STATUS_ALIVE            6
 687 #define STATUS_READY            7
 688 #define STATUS_TEMPERATURE      8
 689 #define STATUS_GEO_CONFIGURED   9
 690 #define STATUS_EXIT_PENDING     10
 691 #define STATUS_STATISTICS       12
 692 #define STATUS_SCANNING         13
 693 #define STATUS_SCAN_ABORTING    14
 694 #define STATUS_SCAN_HW          15
 695 #define STATUS_POWER_PMI        16
 696 #define STATUS_FW_ERROR         17
 697
 698
 699 static inline int iwl_is_ready(struct iwl_priv *priv)
 700 {
 701         /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
 702          * set but EXIT_PENDING is not */
 703         return test_bit(STATUS_READY, &priv->status) &&
 704                test_bit(STATUS_GEO_CONFIGURED, &priv->status) &&
 705                !test_bit(STATUS_EXIT_PENDING, &priv->status);
 706 }
 707
 708 static inline int iwl_is_alive(struct iwl_priv *priv)
 709 {
 710         return test_bit(STATUS_ALIVE, &priv->status);
 711 }
 712
 713 static inline int iwl_is_init(struct iwl_priv *priv)
 714 {
 715         return test_bit(STATUS_INIT, &priv->status);
 716 }
 717
 718 static inline int iwl_is_rfkill_hw(struct iwl_priv *priv)
 719 {
 720         return test_bit(STATUS_RF_KILL_HW, &priv->status);
 721 }
 722
 723 static inline int iwl_is_rfkill(struct iwl_priv *priv)
 724 {
 725         return iwl_is_rfkill_hw(priv);
 726 }
 727
 728 static inline int iwl_is_ctkill(struct iwl_priv *priv)
 729 {
 730         return test_bit(STATUS_CT_KILL, &priv->status);
 731 }
 732
 733 static inline int iwl_is_ready_rf(struct iwl_priv *priv)
 734 {
 735
 736         if (iwl_is_rfkill(priv))
 737                 return 0;
 738
 739         return iwl_is_ready(priv);
 740 }
 741
 742 extern void iwl_send_bt_config(struct iwl_priv *priv);
 743 extern int iwl_send_statistics_request(struct iwl_priv *priv,
 744                                        u8 flags, bool clear);
 745 void iwl_apm_stop(struct iwl_priv *priv);
 746 int iwl_apm_init(struct iwl_priv *priv);
 747
 748 int iwl_send_rxon_timing(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 749 static inline int iwl_send_rxon_assoc(struct iwl_priv *priv,
 750                                       struct iwl_rxon_context *ctx)
 751 {
 752         return priv->cfg->ops->hcmd->rxon_assoc(priv, ctx);
 753 }
 754 static inline int iwlcore_commit_rxon(struct iwl_priv *priv,
 755                                       struct iwl_rxon_context *ctx)
 756 {
 757         return priv->cfg->ops->hcmd->commit_rxon(priv, ctx);
 758 }
 759 static inline void iwlcore_config_ap(struct iwl_priv *priv,
 760                                      struct ieee80211_vif *vif)
 761 {
 762         priv->cfg->ops->lib->config_ap(priv, vif);
 763 }
 764 static inline const struct ieee80211_supported_band *iwl_get_hw_mode(
 765                         struct iwl_priv *priv, enum ieee80211_band band)
 766 {
 767         return priv->hw->wiphy->bands[band];
 768 }
 769
 770 extern bool bt_coex_active;
 771 extern bool bt_siso_mode;
 772
 773 #endif /* __iwl_core_h__ */