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 };
 141
 142 struct iwl_tt_ops {
 143         bool (*lower_power_detection)(struct iwl_priv *priv);
 144         u8 (*tt_power_mode)(struct iwl_priv *priv);
 145         bool (*ct_kill_check)(struct iwl_priv *priv);
 146 };
 147
 148 struct iwl_lib_ops {
 149         /* set hw dependent parameters */
 150         int (*set_hw_params)(struct iwl_priv *priv);
 151         /* Handling TX */
 152         void (*txq_update_byte_cnt_tbl)(struct iwl_priv *priv,
 153                                         struct iwl_tx_queue *txq,
 154                                         u16 byte_cnt);
 155         void (*txq_inval_byte_cnt_tbl)(struct iwl_priv *priv,
 156                                        struct iwl_tx_queue *txq);
 157         void (*txq_set_sched)(struct iwl_priv *priv, u32 mask);
 158         int (*txq_attach_buf_to_tfd)(struct iwl_priv *priv,
 159                                      struct iwl_tx_queue *txq,
 160                                      dma_addr_t addr,
 161                                      u16 len, u8 reset, u8 pad);
 162         void (*txq_free_tfd)(struct iwl_priv *priv,
 163                              struct iwl_tx_queue *txq);
 164         int (*txq_init)(struct iwl_priv *priv,
 165                         struct iwl_tx_queue *txq);
 166         /* aggregations */
 167         int (*txq_agg_enable)(struct iwl_priv *priv, int txq_id, int tx_fifo,
 168                               int sta_id, int tid, u16 ssn_idx);
 169         int (*txq_agg_disable)(struct iwl_priv *priv, u16 txq_id, u16 ssn_idx,
 170                                u8 tx_fifo);
 171         /* setup Rx handler */
 172         void (*rx_handler_setup)(struct iwl_priv *priv);
 173         /* setup deferred work */
 174         void (*setup_deferred_work)(struct iwl_priv *priv);
 175         /* cancel deferred work */
 176         void (*cancel_deferred_work)(struct iwl_priv *priv);
 177         /* alive notification after init uCode load */
 178         void (*init_alive_start)(struct iwl_priv *priv);
 179         /* alive notification */
 180         int (*alive_notify)(struct iwl_priv *priv);
 181         /* check validity of rtc data address */
 182         int (*is_valid_rtc_data_addr)(u32 addr);
 183         /* 1st ucode load */
 184         int (*load_ucode)(struct iwl_priv *priv);
 185         int (*dump_nic_event_log)(struct iwl_priv *priv,
 186                                   bool full_log, char **buf, bool display);
 187         void (*dump_nic_error_log)(struct iwl_priv *priv);
 188         void (*dump_csr)(struct iwl_priv *priv);
 189         int (*dump_fh)(struct iwl_priv *priv, char **buf, bool display);
 190         int (*set_channel_switch)(struct iwl_priv *priv,
 191                                   struct ieee80211_channel_switch *ch_switch);
 192         /* power management */
 193         struct iwl_apm_ops apm_ops;
 194
 195         /* power */
 196         int (*send_tx_power) (struct iwl_priv *priv);
 197         void (*update_chain_flags)(struct iwl_priv *priv);
 198         void (*post_associate)(struct iwl_priv *priv,
 199                                struct ieee80211_vif *vif);
 200         void (*config_ap)(struct iwl_priv *priv, struct ieee80211_vif *vif);
 201         irqreturn_t (*isr) (int irq, void *data);
 202
 203         /* eeprom operations (as defined in iwl-eeprom.h) */
 204         struct iwl_eeprom_ops eeprom_ops;
 205
 206         /* temperature */
 207         struct iwl_temp_ops temp_ops;
 208         /* station management */
 209         int (*manage_ibss_station)(struct iwl_priv *priv,
 210                                    struct ieee80211_vif *vif, bool add);
 211         int (*update_bcast_stations)(struct iwl_priv *priv);
 212         /* recover from tx queue stall */
 213         void (*recover_from_tx_stall)(unsigned long data);
 214         /* check for plcp health */
 215         bool (*check_plcp_health)(struct iwl_priv *priv,
 216                                         struct iwl_rx_packet *pkt);
 217         /* check for ack health */
 218         bool (*check_ack_health)(struct iwl_priv *priv,
 219                                         struct iwl_rx_packet *pkt);
 220         int (*txfifo_flush)(struct iwl_priv *priv, u16 flush_control);
 221         void (*dev_txfifo_flush)(struct iwl_priv *priv, u16 flush_control);
 222
 223         struct iwl_debugfs_ops debugfs_ops;
 224
 225         /* thermal throttling */
 226         struct iwl_tt_ops tt_ops;
 227 };
 228
 229 struct iwl_led_ops {
 230         int (*cmd)(struct iwl_priv *priv, struct iwl_led_cmd *led_cmd);
 231         int (*on)(struct iwl_priv *priv);
 232         int (*off)(struct iwl_priv *priv);
 233 };
 234
 235 /* NIC specific ops */
 236 struct iwl_nic_ops {
 237         void (*additional_nic_config)(struct iwl_priv *priv);
 238 };
 239
 240 struct iwl_ops {
 241         const struct iwl_lib_ops *lib;
 242         const struct iwl_hcmd_ops *hcmd;
 243         const struct iwl_hcmd_utils_ops *utils;
 244         const struct iwl_led_ops *led;
 245         const struct iwl_nic_ops *nic;
 246 };
 247
 248 struct iwl_mod_params {
 249         int sw_crypto;          /* def: 0 = using hardware encryption */
 250         int disable_hw_scan;    /* def: 0 = use h/w scan */
 251         int num_of_queues;      /* def: HW dependent */
 252         int disable_11n;        /* def: 0 = 11n capabilities enabled */
 253         int amsdu_size_8K;      /* def: 1 = enable 8K amsdu size */
 254         int antenna;            /* def: 0 = both antennas (use diversity) */
 255         int restart_fw;         /* def: 1 = restart firmware */
 256 };
 257
 258 /**
 259  * struct iwl_cfg
 260  * @fw_name_pre: Firmware filename prefix. The api version and extension
 261  *      (.ucode) will be added to filename before loading from disk. The
 262  *      filename is constructed as fw_name_pre<api>.ucode.
 263  * @ucode_api_max: Highest version of uCode API supported by driver.
 264  * @ucode_api_min: Lowest version of uCode API supported by driver.
 265  * @pa_type: used by 6000 series only to identify the type of Power Amplifier
 266  * @max_ll_items: max number of OTP blocks
 267  * @shadow_ram_support: shadow support for OTP memory
 268  * @led_compensation: compensate on the led on/off time per HW according
 269  *      to the deviation to achieve the desired led frequency.
 270  *      The detail algorithm is described in iwl-led.c
 271  * @use_rts_for_aggregation: use rts/cts protection for HT traffic
 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  * @monitor_recover_period: default timer used to check stuck queues
 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  * @scan_antennas: available antenna for scan operation
 290  * @advanced_bt_coexist: support advanced bt coexist
 291  * @bt_init_traffic_load: specify initial bt traffic load
 292  * @bt_prio_boost: default bt priority boost value
 293  * @need_dc_calib: need to perform init dc calibration
 294  * @bt_statistics: use BT version of statistics notification
 295  * @agg_time_limit: maximum number of uSec in aggregation
 296  * @ampdu_factor: Maximum A-MPDU length factor
 297  * @ampdu_density: Minimum A-MPDU spacing
 298  *
 299  * We enable the driver to be backward compatible wrt API version. The
 300  * driver specifies which APIs it supports (with @ucode_api_max being the
 301  * highest and @ucode_api_min the lowest). Firmware will only be loaded if
 302  * it has a supported API version. The firmware's API version will be
 303  * stored in @iwl_priv, enabling the driver to make runtime changes based
 304  * on firmware version used.
 305  *
 306  * For example,
 307  * if (IWL_UCODE_API(priv->ucode_ver) >= 2) {
 308  *      Driver interacts with Firmware API version >= 2.
 309  * } else {
 310  *      Driver interacts with Firmware API version 1.
 311  * }
 312  *
 313  * The ideal usage of this infrastructure is to treat a new ucode API
 314  * release as a new hardware revision. That is, through utilizing the
 315  * iwl_hcmd_utils_ops etc. we accommodate different command structures
 316  * and flows between hardware versions (4965/5000) as well as their API
 317  * versions.
 318  *
 319  */
 320 struct iwl_cfg {
 321         const char *name;
 322         const char *fw_name_pre;
 323         const unsigned int ucode_api_max;
 324         const unsigned int ucode_api_min;
 325         unsigned int sku;
 326         int eeprom_size;
 327         u16  eeprom_ver;
 328         u16  eeprom_calib_ver;
 329         int num_of_queues;      /* def: HW dependent */
 330         int num_of_ampdu_queues;/* def: HW dependent */
 331         const struct iwl_ops *ops;
 332         const struct iwl_mod_params *mod_params;
 333         u8   valid_tx_ant;
 334         u8   valid_rx_ant;
 335
 336         /* for iwl_apm_init() */
 337         u32 pll_cfg_val;
 338         bool set_l0s;
 339         bool use_bsm;
 340
 341         bool use_isr_legacy;
 342         enum iwl_pa_type pa_type;
 343         const u16 max_ll_items;
 344         const bool shadow_ram_support;
 345         const bool ht_greenfield_support;
 346         u16 led_compensation;
 347         const bool broken_powersave;
 348         bool use_rts_for_aggregation;
 349         int chain_noise_num_beacons;
 350         const bool supports_idle;
 351         bool adv_thermal_throttle;
 352         bool support_ct_kill_exit;
 353         const bool support_wimax_coexist;
 354         u8 plcp_delta_threshold;
 355         s32 chain_noise_scale;
 356         /* timer period for monitor the driver queues */
 357         u32 monitor_recover_period;
 358         bool temperature_kelvin;
 359         u32 max_event_log_size;
 360         const bool tx_power_by_driver;
 361         const bool ucode_tracing;
 362         const bool sensitivity_calib_by_driver;
 363         const bool chain_noise_calib_by_driver;
 364         u8 scan_rx_antennas[IEEE80211_NUM_BANDS];
 365         u8 scan_tx_antennas[IEEE80211_NUM_BANDS];
 366         bool advanced_bt_coexist;
 367         u8 bt_init_traffic_load;
 368         u8 bt_prio_boost;
 369         const bool need_dc_calib;
 370         const bool bt_statistics;
 371         u16 agg_time_limit;
 372         u8 ampdu_factor;
 373         u8 ampdu_density;
 374 };
 375
 376 /***************************
 377  *   L i b                 *
 378  ***************************/
 379
 380 struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg,
 381                 struct ieee80211_ops *hw_ops);
 382 void iwl_activate_qos(struct iwl_priv *priv);
 383 int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
 384                     const struct ieee80211_tx_queue_params *params);
 385 int iwl_mac_tx_last_beacon(struct ieee80211_hw *hw);
 386 void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
 387                            int hw_decrypt);
 388 int iwl_check_rxon_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 389 int iwl_full_rxon_required(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 390 void iwl_set_rxon_chain(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 391 int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch,
 392                          struct iwl_rxon_context *ctx);
 393 void iwl_set_flags_for_band(struct iwl_priv *priv,
 394                             struct iwl_rxon_context *ctx,
 395                             enum ieee80211_band band,
 396                             struct ieee80211_vif *vif);
 397 u8 iwl_get_single_channel_number(struct iwl_priv *priv,
 398                                   enum ieee80211_band band);
 399 void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf);
 400 bool iwl_is_ht40_tx_allowed(struct iwl_priv *priv,
 401                             struct iwl_rxon_context *ctx,
 402                             struct ieee80211_sta_ht_cap *ht_cap);
 403 void iwl_connection_init_rx_config(struct iwl_priv *priv,
 404                                    struct iwl_rxon_context *ctx);
 405 void iwl_set_rate(struct iwl_priv *priv);
 406 int iwl_set_decrypted_flag(struct iwl_priv *priv,
 407                            struct ieee80211_hdr *hdr,
 408                            u32 decrypt_res,
 409                            struct ieee80211_rx_status *stats);
 410 void iwl_irq_handle_error(struct iwl_priv *priv);
 411 void iwl_post_associate(struct iwl_priv *priv, struct ieee80211_vif *vif);
 412 void iwl_bss_info_changed(struct ieee80211_hw *hw,
 413                                      struct ieee80211_vif *vif,
 414                                      struct ieee80211_bss_conf *bss_conf,
 415                                      u32 changes);
 416 int iwl_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 417 int iwl_mac_add_interface(struct ieee80211_hw *hw,
 418                           struct ieee80211_vif *vif);
 419 void iwl_mac_remove_interface(struct ieee80211_hw *hw,
 420                               struct ieee80211_vif *vif);
 421 int iwl_mac_config(struct ieee80211_hw *hw, u32 changed);
 422 void iwl_config_ap(struct iwl_priv *priv, struct ieee80211_vif *vif);
 423 void iwl_mac_reset_tsf(struct ieee80211_hw *hw);
 424 int iwl_alloc_txq_mem(struct iwl_priv *priv);
 425 void iwl_free_txq_mem(struct iwl_priv *priv);
 426 void iwlcore_tx_cmd_protection(struct iwl_priv *priv,
 427                                struct ieee80211_tx_info *info,
 428                                __le16 fc, __le32 *tx_flags);
 429 #ifdef CONFIG_IWLWIFI_DEBUGFS
 430 int iwl_alloc_traffic_mem(struct iwl_priv *priv);
 431 void iwl_free_traffic_mem(struct iwl_priv *priv);
 432 void iwl_reset_traffic_log(struct iwl_priv *priv);
 433 void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
 434                                 u16 length, struct ieee80211_hdr *header);
 435 void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
 436                                 u16 length, struct ieee80211_hdr *header);
 437 const char *get_mgmt_string(int cmd);
 438 const char *get_ctrl_string(int cmd);
 439 void iwl_clear_traffic_stats(struct iwl_priv *priv);
 440 void iwl_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc,
 441                       u16 len);
 442 #else
 443 static inline int iwl_alloc_traffic_mem(struct iwl_priv *priv)
 444 {
 445         return 0;
 446 }
 447 static inline void iwl_free_traffic_mem(struct iwl_priv *priv)
 448 {
 449 }
 450 static inline void iwl_reset_traffic_log(struct iwl_priv *priv)
 451 {
 452 }
 453 static inline void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
 454                       u16 length, struct ieee80211_hdr *header)
 455 {
 456 }
 457 static inline void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
 458                       u16 length, struct ieee80211_hdr *header)
 459 {
 460 }
 461 static inline void iwl_update_stats(struct iwl_priv *priv, bool is_tx,
 462                                     __le16 fc, u16 len)
 463 {
 464         struct traffic_stats    *stats;
 465
 466         if (is_tx)
 467                 stats = &priv->tx_stats;
 468         else
 469                 stats = &priv->rx_stats;
 470
 471         if (ieee80211_is_data(fc)) {
 472                 /* data */
 473                 stats->data_bytes += len;
 474         }
 475         iwl_leds_background(priv);
 476 }
 477 #endif
 478 /*****************************************************
 479  * RX handlers.
 480  * **************************************************/
 481 void iwl_rx_pm_sleep_notif(struct iwl_priv *priv,
 482                            struct iwl_rx_mem_buffer *rxb);
 483 void iwl_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
 484                                       struct iwl_rx_mem_buffer *rxb);
 485 void iwl_rx_reply_error(struct iwl_priv *priv,
 486                         struct iwl_rx_mem_buffer *rxb);
 487
 488 /*****************************************************
 489 * RX
 490 ******************************************************/
 491 void iwl_cmd_queue_free(struct iwl_priv *priv);
 492 int iwl_rx_queue_alloc(struct iwl_priv *priv);
 493 void iwl_rx_handle(struct iwl_priv *priv);
 494 void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv,
 495                                   struct iwl_rx_queue *q);
 496 int iwl_rx_queue_space(const struct iwl_rx_queue *q);
 497 void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
 498 /* Handlers */
 499 void iwl_rx_spectrum_measure_notif(struct iwl_priv *priv,
 500                                           struct iwl_rx_mem_buffer *rxb);
 501 void iwl_recover_from_statistics(struct iwl_priv *priv,
 502                                 struct iwl_rx_packet *pkt);
 503 void iwl_chswitch_done(struct iwl_priv *priv, bool is_success);
 504 void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
 505
 506 /* TX helpers */
 507
 508 /*****************************************************
 509 * TX
 510 ******************************************************/
 511 void iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq);
 512 int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv,
 513                                  struct iwl_tx_queue *txq,
 514                                  dma_addr_t addr, u16 len, u8 reset, u8 pad);
 515 int iwl_hw_tx_queue_init(struct iwl_priv *priv,
 516                          struct iwl_tx_queue *txq);
 517 void iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq);
 518 int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
 519                       int slots_num, u32 txq_id);
 520 void iwl_tx_queue_reset(struct iwl_priv *priv, struct iwl_tx_queue *txq,
 521                         int slots_num, u32 txq_id);
 522 void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id);
 523 /*****************************************************
 524  * TX power
 525  ****************************************************/
 526 int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force);
 527
 528 /*******************************************************************************
 529  * Rate
 530  ******************************************************************************/
 531
 532 int iwl_hwrate_to_plcp_idx(u32 rate_n_flags);
 533
 534 u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv,
 535                             struct iwl_rxon_context *ctx);
 536
 537 u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant_idx, u8 valid);
 538
 539 static inline u32 iwl_ant_idx_to_flags(u8 ant_idx)
 540 {
 541         return BIT(ant_idx) << RATE_MCS_ANT_POS;
 542 }
 543
 544 static inline u8 iwl_hw_get_rate(__le32 rate_n_flags)
 545 {
 546         return le32_to_cpu(rate_n_flags) & 0xFF;
 547 }
 548 static inline u32 iwl_hw_get_rate_n_flags(__le32 rate_n_flags)
 549 {
 550         return le32_to_cpu(rate_n_flags) & 0x1FFFF;
 551 }
 552 static inline __le32 iwl_hw_set_rate_n_flags(u8 rate, u32 flags)
 553 {
 554         return cpu_to_le32(flags|(u32)rate);
 555 }
 556
 557 /*******************************************************************************
 558  * Scanning
 559  ******************************************************************************/
 560 void iwl_init_scan_params(struct iwl_priv *priv);
 561 int iwl_scan_cancel(struct iwl_priv *priv);
 562 int iwl_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms);
 563 void iwl_force_scan_end(struct iwl_priv *priv);
 564 int iwl_mac_hw_scan(struct ieee80211_hw *hw,
 565                     struct ieee80211_vif *vif,
 566                     struct cfg80211_scan_request *req);
 567 void iwl_internal_short_hw_scan(struct iwl_priv *priv);
 568 int iwl_force_reset(struct iwl_priv *priv, int mode, bool external);
 569 u16 iwl_fill_probe_req(struct iwl_priv *priv, struct ieee80211_mgmt *frame,
 570                        const u8 *ta, const u8 *ie, int ie_len, int left);
 571 void iwl_setup_rx_scan_handlers(struct iwl_priv *priv);
 572 u16 iwl_get_active_dwell_time(struct iwl_priv *priv,
 573                               enum ieee80211_band band,
 574                               u8 n_probes);
 575 u16 iwl_get_passive_dwell_time(struct iwl_priv *priv,
 576                                enum ieee80211_band band,
 577                                struct ieee80211_vif *vif);
 578 void iwl_setup_scan_deferred_work(struct iwl_priv *priv);
 579 void iwl_cancel_scan_deferred_work(struct iwl_priv *priv);
 580
 581 /* For faster active scanning, scan will move to the next channel if fewer than
 582  * PLCP_QUIET_THRESH packets are heard on this channel within
 583  * ACTIVE_QUIET_TIME after sending probe request.  This shortens the dwell
 584  * time if it's a quiet channel (nothing responded to our probe, and there's
 585  * no other traffic).
 586  * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
 587 #define IWL_ACTIVE_QUIET_TIME       cpu_to_le16(10)  /* msec */
 588 #define IWL_PLCP_QUIET_THRESH       cpu_to_le16(1)  /* packets */
 589
 590 #define IWL_SCAN_CHECK_WATCHDOG         (HZ * 7)
 591
 592 /*******************************************************************************
 593  * Calibrations - implemented in iwl-calib.c
 594  ******************************************************************************/
 595 int iwl_send_calib_results(struct iwl_priv *priv);
 596 int iwl_calib_set(struct iwl_calib_result *res, const u8 *buf, int len);
 597 void iwl_calib_free_results(struct iwl_priv *priv);
 598
 599 /*****************************************************
 600  *   S e n d i n g     H o s t     C o m m a n d s   *
 601  *****************************************************/
 602
 603 const char *get_cmd_string(u8 cmd);
 604 int __must_check iwl_send_cmd_sync(struct iwl_priv *priv,
 605                                    struct iwl_host_cmd *cmd);
 606 int iwl_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 607 int __must_check iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id,
 608                                   u16 len, const void *data);
 609 int iwl_send_cmd_pdu_async(struct iwl_priv *priv, u8 id, u16 len,
 610                            const void *data,
 611                            void (*callback)(struct iwl_priv *priv,
 612                                             struct iwl_device_cmd *cmd,
 613                                             struct iwl_rx_packet *pkt));
 614
 615 int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 616
 617
 618 /*****************************************************
 619  * PCI                                               *
 620  *****************************************************/
 621 irqreturn_t iwl_isr_legacy(int irq, void *data);
 622
 623 static inline u16 iwl_pcie_link_ctl(struct iwl_priv *priv)
 624 {
 625         int pos;
 626         u16 pci_lnk_ctl;
 627         pos = pci_find_capability(priv->pci_dev, PCI_CAP_ID_EXP);
 628         pci_read_config_word(priv->pci_dev, pos + PCI_EXP_LNKCTL, &pci_lnk_ctl);
 629         return pci_lnk_ctl;
 630 }
 631
 632 void iwl_bg_monitor_recover(unsigned long data);
 633 u32 iwl_usecs_to_beacons(struct iwl_priv *priv, u32 usec, u32 beacon_interval);
 634 __le32 iwl_add_beacon_time(struct iwl_priv *priv, u32 base,
 635                            u32 addon, u32 beacon_interval);
 636
 637 #ifdef CONFIG_PM
 638 int iwl_pci_suspend(struct pci_dev *pdev, pm_message_t state);
 639 int iwl_pci_resume(struct pci_dev *pdev);
 640 #endif /* CONFIG_PM */
 641
 642 /*****************************************************
 643 *  Error Handling Debugging
 644 ******************************************************/
 645 void iwl_dump_nic_error_log(struct iwl_priv *priv);
 646 int iwl_dump_nic_event_log(struct iwl_priv *priv,
 647                            bool full_log, char **buf, bool display);
 648 void iwl_dump_csr(struct iwl_priv *priv);
 649 int iwl_dump_fh(struct iwl_priv *priv, char **buf, bool display);
 650 #ifdef CONFIG_IWLWIFI_DEBUG
 651 void iwl_print_rx_config_cmd(struct iwl_priv *priv,
 652                              struct iwl_rxon_context *ctx);
 653 #else
 654 static inline void iwl_print_rx_config_cmd(struct iwl_priv *priv,
 655                                            struct iwl_rxon_context *ctx)
 656 {
 657 }
 658 #endif
 659
 660 void iwl_clear_isr_stats(struct iwl_priv *priv);
 661
 662 /*****************************************************
 663 *  GEOS
 664 ******************************************************/
 665 int iwlcore_init_geos(struct iwl_priv *priv);
 666 void iwlcore_free_geos(struct iwl_priv *priv);
 667
 668 /*************** DRIVER STATUS FUNCTIONS   *****/
 669
 670 #define STATUS_HCMD_ACTIVE      0       /* host command in progress */
 671 /* 1 is unused (used to be STATUS_HCMD_SYNC_ACTIVE) */
 672 #define STATUS_INT_ENABLED      2
 673 #define STATUS_RF_KILL_HW       3
 674 #define STATUS_CT_KILL          4
 675 #define STATUS_INIT             5
 676 #define STATUS_ALIVE            6
 677 #define STATUS_READY            7
 678 #define STATUS_TEMPERATURE      8
 679 #define STATUS_GEO_CONFIGURED   9
 680 #define STATUS_EXIT_PENDING     10
 681 #define STATUS_STATISTICS       12
 682 #define STATUS_SCANNING         13
 683 #define STATUS_SCAN_ABORTING    14
 684 #define STATUS_SCAN_HW          15
 685 #define STATUS_POWER_PMI        16
 686 #define STATUS_FW_ERROR         17
 687
 688
 689 static inline int iwl_is_ready(struct iwl_priv *priv)
 690 {
 691         /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
 692          * set but EXIT_PENDING is not */
 693         return test_bit(STATUS_READY, &priv->status) &&
 694                test_bit(STATUS_GEO_CONFIGURED, &priv->status) &&
 695                !test_bit(STATUS_EXIT_PENDING, &priv->status);
 696 }
 697
 698 static inline int iwl_is_alive(struct iwl_priv *priv)
 699 {
 700         return test_bit(STATUS_ALIVE, &priv->status);
 701 }
 702
 703 static inline int iwl_is_init(struct iwl_priv *priv)
 704 {
 705         return test_bit(STATUS_INIT, &priv->status);
 706 }
 707
 708 static inline int iwl_is_rfkill_hw(struct iwl_priv *priv)
 709 {
 710         return test_bit(STATUS_RF_KILL_HW, &priv->status);
 711 }
 712
 713 static inline int iwl_is_rfkill(struct iwl_priv *priv)
 714 {
 715         return iwl_is_rfkill_hw(priv);
 716 }
 717
 718 static inline int iwl_is_ctkill(struct iwl_priv *priv)
 719 {
 720         return test_bit(STATUS_CT_KILL, &priv->status);
 721 }
 722
 723 static inline int iwl_is_ready_rf(struct iwl_priv *priv)
 724 {
 725
 726         if (iwl_is_rfkill(priv))
 727                 return 0;
 728
 729         return iwl_is_ready(priv);
 730 }
 731
 732 extern void iwl_send_bt_config(struct iwl_priv *priv);
 733 extern int iwl_send_statistics_request(struct iwl_priv *priv,
 734                                        u8 flags, bool clear);
 735 extern int iwl_send_lq_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
 736                 struct iwl_link_quality_cmd *lq, u8 flags, bool init);
 737 void iwl_apm_stop(struct iwl_priv *priv);
 738 int iwl_apm_init(struct iwl_priv *priv);
 739
 740 int iwl_send_rxon_timing(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
 741 static inline int iwl_send_rxon_assoc(struct iwl_priv *priv,
 742                                       struct iwl_rxon_context *ctx)
 743 {
 744         return priv->cfg->ops->hcmd->rxon_assoc(priv, ctx);
 745 }
 746 static inline int iwlcore_commit_rxon(struct iwl_priv *priv,
 747                                       struct iwl_rxon_context *ctx)
 748 {
 749         return priv->cfg->ops->hcmd->commit_rxon(priv, ctx);
 750 }
 751 static inline void iwlcore_config_ap(struct iwl_priv *priv,
 752                                      struct ieee80211_vif *vif)
 753 {
 754         priv->cfg->ops->lib->config_ap(priv, vif);
 755 }
 756 static inline const struct ieee80211_supported_band *iwl_get_hw_mode(
 757                         struct iwl_priv *priv, enum ieee80211_band band)
 758 {
 759         return priv->hw->wiphy->bands[band];
 760 }
 761
 762 extern bool bt_coex_active;
 763 extern bool bt_siso_mode;
 764
 765 #endif /* __iwl_core_h__ */