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);
  92         int (*commit_rxon)(struct iwl_priv *priv);
  93         void (*set_rxon_chain)(struct iwl_priv *priv);
  94         int (*set_tx_ant)(struct iwl_priv *priv, u8 valid_tx_ant);
  95         void (*send_bt_config)(struct iwl_priv *priv);
  96 };
  97
  98 struct iwl_hcmd_utils_ops {
  99         u16 (*get_hcmd_size)(u8 cmd_id, u16 len);
 100         u16 (*build_addsta_hcmd)(const struct iwl_addsta_cmd *cmd, u8 *data);
 101         void (*gain_computation)(struct iwl_priv *priv,
 102                         u32 *average_noise,
 103                         u16 min_average_noise_antennat_i,
 104                         u32 min_average_noise,
 105                         u8 default_chain);
 106         void (*chain_noise_reset)(struct iwl_priv *priv);
 107         void (*rts_tx_cmd_flag)(struct ieee80211_tx_info *info,
 108                         __le32 *tx_flags);
 109         int  (*calc_rssi)(struct iwl_priv *priv,
 110                           struct iwl_rx_phy_res *rx_resp);
 111         void (*request_scan)(struct iwl_priv *priv, struct ieee80211_vif *vif);
 112 };
 113
 114 struct iwl_apm_ops {
 115         int (*init)(struct iwl_priv *priv);
 116         void (*stop)(struct iwl_priv *priv);
 117         void (*config)(struct iwl_priv *priv);
 118         int (*set_pwr_src)(struct iwl_priv *priv, enum iwl_pwr_src src);
 119 };
 120
 121 struct iwl_debugfs_ops {
 122         ssize_t (*rx_stats_read)(struct file *file, char __user *user_buf,
 123                                  size_t count, loff_t *ppos);
 124         ssize_t (*tx_stats_read)(struct file *file, char __user *user_buf,
 125                                  size_t count, loff_t *ppos);
 126         ssize_t (*general_stats_read)(struct file *file, char __user *user_buf,
 127                                       size_t count, loff_t *ppos);
 128 };
 129
 130 struct iwl_temp_ops {
 131         void (*temperature)(struct iwl_priv *priv);
 132         void (*set_ct_kill)(struct iwl_priv *priv);
 133         void (*set_calib_version)(struct iwl_priv *priv);
 134 };
 135
 136 struct iwl_lib_ops {
 137         /* set hw dependent parameters */
 138         int (*set_hw_params)(struct iwl_priv *priv);
 139         /* Handling TX */
 140         void (*txq_update_byte_cnt_tbl)(struct iwl_priv *priv,
 141                                         struct iwl_tx_queue *txq,
 142                                         u16 byte_cnt);
 143         void (*txq_inval_byte_cnt_tbl)(struct iwl_priv *priv,
 144                                        struct iwl_tx_queue *txq);
 145         void (*txq_set_sched)(struct iwl_priv *priv, u32 mask);
 146         int (*txq_attach_buf_to_tfd)(struct iwl_priv *priv,
 147                                      struct iwl_tx_queue *txq,
 148                                      dma_addr_t addr,
 149                                      u16 len, u8 reset, u8 pad);
 150         void (*txq_free_tfd)(struct iwl_priv *priv,
 151                              struct iwl_tx_queue *txq);
 152         int (*txq_init)(struct iwl_priv *priv,
 153                         struct iwl_tx_queue *txq);
 154         /* aggregations */
 155         int (*txq_agg_enable)(struct iwl_priv *priv, int txq_id, int tx_fifo,
 156                               int sta_id, int tid, u16 ssn_idx);
 157         int (*txq_agg_disable)(struct iwl_priv *priv, u16 txq_id, u16 ssn_idx,
 158                                u8 tx_fifo);
 159         /* setup Rx handler */
 160         void (*rx_handler_setup)(struct iwl_priv *priv);
 161         /* setup deferred work */
 162         void (*setup_deferred_work)(struct iwl_priv *priv);
 163         /* cancel deferred work */
 164         void (*cancel_deferred_work)(struct iwl_priv *priv);
 165         /* alive notification after init uCode load */
 166         void (*init_alive_start)(struct iwl_priv *priv);
 167         /* alive notification */
 168         int (*alive_notify)(struct iwl_priv *priv);
 169         /* check validity of rtc data address */
 170         int (*is_valid_rtc_data_addr)(u32 addr);
 171         /* 1st ucode load */
 172         int (*load_ucode)(struct iwl_priv *priv);
 173         int (*dump_nic_event_log)(struct iwl_priv *priv,
 174                                   bool full_log, char **buf, bool display);
 175         void (*dump_nic_error_log)(struct iwl_priv *priv);
 176         void (*dump_csr)(struct iwl_priv *priv);
 177         int (*dump_fh)(struct iwl_priv *priv, char **buf, bool display);
 178         int (*set_channel_switch)(struct iwl_priv *priv,
 179                                   struct ieee80211_channel_switch *ch_switch);
 180         /* power management */
 181         struct iwl_apm_ops apm_ops;
 182
 183         /* power */
 184         int (*send_tx_power) (struct iwl_priv *priv);
 185         void (*update_chain_flags)(struct iwl_priv *priv);
 186         void (*post_associate)(struct iwl_priv *priv,
 187                                struct ieee80211_vif *vif);
 188         void (*config_ap)(struct iwl_priv *priv, struct ieee80211_vif *vif);
 189         irqreturn_t (*isr) (int irq, void *data);
 190
 191         /* eeprom operations (as defined in iwl-eeprom.h) */
 192         struct iwl_eeprom_ops eeprom_ops;
 193
 194         /* temperature */
 195         struct iwl_temp_ops temp_ops;
 196         /* station management */
 197         int (*manage_ibss_station)(struct iwl_priv *priv,
 198                                    struct ieee80211_vif *vif, bool add);
 199         int (*update_bcast_station)(struct iwl_priv *priv);
 200         /* recover from tx queue stall */
 201         void (*recover_from_tx_stall)(unsigned long data);
 202         /* check for plcp health */
 203         bool (*check_plcp_health)(struct iwl_priv *priv,
 204                                         struct iwl_rx_packet *pkt);
 205         /* check for ack health */
 206         bool (*check_ack_health)(struct iwl_priv *priv,
 207                                         struct iwl_rx_packet *pkt);
 208         int (*txfifo_flush)(struct iwl_priv *priv, u16 flush_control);
 209
 210         struct iwl_debugfs_ops debugfs_ops;
 211 };
 212
 213 struct iwl_led_ops {
 214         int (*cmd)(struct iwl_priv *priv, struct iwl_led_cmd *led_cmd);
 215         int (*on)(struct iwl_priv *priv);
 216         int (*off)(struct iwl_priv *priv);
 217 };
 218
 219 struct iwl_ops {
 220         const struct iwl_lib_ops *lib;
 221         const struct iwl_hcmd_ops *hcmd;
 222         const struct iwl_hcmd_utils_ops *utils;
 223         const struct iwl_led_ops *led;
 224 };
 225
 226 struct iwl_mod_params {
 227         int sw_crypto;          /* def: 0 = using hardware encryption */
 228         int disable_hw_scan;    /* def: 0 = use h/w scan */
 229         int num_of_queues;      /* def: HW dependent */
 230         int disable_11n;        /* def: 0 = 11n capabilities enabled */
 231         int amsdu_size_8K;      /* def: 1 = enable 8K amsdu size */
 232         int antenna;            /* def: 0 = both antennas (use diversity) */
 233         int restart_fw;         /* def: 1 = restart firmware */
 234 };
 235
 236 /**
 237  * struct iwl_cfg
 238  * @fw_name_pre: Firmware filename prefix. The api version and extension
 239  *      (.ucode) will be added to filename before loading from disk. The
 240  *      filename is constructed as fw_name_pre<api>.ucode.
 241  * @ucode_api_max: Highest version of uCode API supported by driver.
 242  * @ucode_api_min: Lowest version of uCode API supported by driver.
 243  * @pa_type: used by 6000 series only to identify the type of Power Amplifier
 244  * @max_ll_items: max number of OTP blocks
 245  * @shadow_ram_support: shadow support for OTP memory
 246  * @led_compensation: compensate on the led on/off time per HW according
 247  *      to the deviation to achieve the desired led frequency.
 248  *      The detail algorithm is described in iwl-led.c
 249  * @use_rts_for_ht: use rts/cts protection for HT traffic
 250  * @chain_noise_num_beacons: number of beacons used to compute chain noise
 251  * @adv_thermal_throttle: support advance thermal throttle
 252  * @support_ct_kill_exit: support ct kill exit condition
 253  * @support_wimax_coexist: support wimax/wifi co-exist
 254  * @plcp_delta_threshold: plcp error rate threshold used to trigger
 255  *      radio tuning when there is a high receiving plcp error rate
 256  * @chain_noise_scale: default chain noise scale used for gain computation
 257  * @monitor_recover_period: default timer used to check stuck queues
 258  * @temperature_kelvin: temperature report by uCode in kelvin
 259  * @max_event_log_size: size of event log buffer size for ucode event logging
 260  * @tx_power_by_driver: tx power calibration performed by driver
 261  *      instead of uCode
 262  * @ucode_tracing: support ucode continuous tracing
 263  * @sensitivity_calib_by_driver: driver has the capability to perform
 264  *      sensitivity calibration operation
 265  * @chain_noise_calib_by_driver: driver has the capability to perform
 266  *      chain noise calibration operation
 267  * @scan_antennas: available antenna for scan operation
 268  *
 269  * We enable the driver to be backward compatible wrt API version. The
 270  * driver specifies which APIs it supports (with @ucode_api_max being the
 271  * highest and @ucode_api_min the lowest). Firmware will only be loaded if
 272  * it has a supported API version. The firmware's API version will be
 273  * stored in @iwl_priv, enabling the driver to make runtime changes based
 274  * on firmware version used.
 275  *
 276  * For example,
 277  * if (IWL_UCODE_API(priv->ucode_ver) >= 2) {
 278  *      Driver interacts with Firmware API version >= 2.
 279  * } else {
 280  *      Driver interacts with Firmware API version 1.
 281  * }
 282  *
 283  * The ideal usage of this infrastructure is to treat a new ucode API
 284  * release as a new hardware revision. That is, through utilizing the
 285  * iwl_hcmd_utils_ops etc. we accommodate different command structures
 286  * and flows between hardware versions (4965/5000) as well as their API
 287  * versions.
 288  *
 289  */
 290 struct iwl_cfg {
 291         const char *name;
 292         const char *fw_name_pre;
 293         const unsigned int ucode_api_max;
 294         const unsigned int ucode_api_min;
 295         unsigned int sku;
 296         int eeprom_size;
 297         u16  eeprom_ver;
 298         u16  eeprom_calib_ver;
 299         int num_of_queues;      /* def: HW dependent */
 300         int num_of_ampdu_queues;/* def: HW dependent */
 301         const struct iwl_ops *ops;
 302         const struct iwl_mod_params *mod_params;
 303         u8   valid_tx_ant;
 304         u8   valid_rx_ant;
 305
 306         /* for iwl_apm_init() */
 307         u32 pll_cfg_val;
 308         bool set_l0s;
 309         bool use_bsm;
 310
 311         bool use_isr_legacy;
 312         enum iwl_pa_type pa_type;
 313         const u16 max_ll_items;
 314         const bool shadow_ram_support;
 315         const bool ht_greenfield_support;
 316         u16 led_compensation;
 317         const bool broken_powersave;
 318         bool use_rts_for_ht;
 319         int chain_noise_num_beacons;
 320         const bool supports_idle;
 321         bool adv_thermal_throttle;
 322         bool support_ct_kill_exit;
 323         const bool support_wimax_coexist;
 324         u8 plcp_delta_threshold;
 325         s32 chain_noise_scale;
 326         /* timer period for monitor the driver queues */
 327         u32 monitor_recover_period;
 328         bool temperature_kelvin;
 329         u32 max_event_log_size;
 330         const bool tx_power_by_driver;
 331         const bool ucode_tracing;
 332         const bool sensitivity_calib_by_driver;
 333         const bool chain_noise_calib_by_driver;
 334         u8 scan_rx_antennas[IEEE80211_NUM_BANDS];
 335         u8 scan_tx_antennas[IEEE80211_NUM_BANDS];
 336         const bool need_dc_calib;
 337 };
 338
 339 /***************************
 340  *   L i b                 *
 341  ***************************/
 342
 343 struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg,
 344                 struct ieee80211_ops *hw_ops);
 345 void iwl_hw_detect(struct iwl_priv *priv);
 346 void iwl_activate_qos(struct iwl_priv *priv);
 347 int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
 348                     const struct ieee80211_tx_queue_params *params);
 349 void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt);
 350 int iwl_check_rxon_cmd(struct iwl_priv *priv);
 351 int iwl_full_rxon_required(struct iwl_priv *priv);
 352 void iwl_set_rxon_chain(struct iwl_priv *priv);
 353 int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch);
 354 void iwl_set_flags_for_band(struct iwl_priv *priv,
 355                             enum ieee80211_band band,
 356                             struct ieee80211_vif *vif);
 357 u8 iwl_get_single_channel_number(struct iwl_priv *priv,
 358                                   enum ieee80211_band band);
 359 void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf);
 360 u8 iwl_is_ht40_tx_allowed(struct iwl_priv *priv,
 361                          struct ieee80211_sta_ht_cap *sta_ht_inf);
 362 void iwl_connection_init_rx_config(struct iwl_priv *priv,
 363                                    struct ieee80211_vif *vif);
 364 void iwl_set_rate(struct iwl_priv *priv);
 365 int iwl_set_decrypted_flag(struct iwl_priv *priv,
 366                            struct ieee80211_hdr *hdr,
 367                            u32 decrypt_res,
 368                            struct ieee80211_rx_status *stats);
 369 void iwl_irq_handle_error(struct iwl_priv *priv);
 370 void iwl_configure_filter(struct ieee80211_hw *hw,
 371                           unsigned int changed_flags,
 372                           unsigned int *total_flags, u64 multicast);
 373 int iwl_set_hw_params(struct iwl_priv *priv);
 374 void iwl_post_associate(struct iwl_priv *priv, struct ieee80211_vif *vif);
 375 void iwl_bss_info_changed(struct ieee80211_hw *hw,
 376                                      struct ieee80211_vif *vif,
 377                                      struct ieee80211_bss_conf *bss_conf,
 378                                      u32 changes);
 379 int iwl_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb);
 380 int iwl_commit_rxon(struct iwl_priv *priv);
 381 int iwl_mac_add_interface(struct ieee80211_hw *hw,
 382                           struct ieee80211_vif *vif);
 383 void iwl_mac_remove_interface(struct ieee80211_hw *hw,
 384                               struct ieee80211_vif *vif);
 385 int iwl_mac_config(struct ieee80211_hw *hw, u32 changed);
 386 void iwl_config_ap(struct iwl_priv *priv, struct ieee80211_vif *vif);
 387 void iwl_mac_reset_tsf(struct ieee80211_hw *hw);
 388 int iwl_alloc_txq_mem(struct iwl_priv *priv);
 389 void iwl_free_txq_mem(struct iwl_priv *priv);
 390 void iwlcore_rts_tx_cmd_flag(struct ieee80211_tx_info *info,
 391                                 __le32 *tx_flags);
 392 #ifdef CONFIG_IWLWIFI_DEBUGFS
 393 int iwl_alloc_traffic_mem(struct iwl_priv *priv);
 394 void iwl_free_traffic_mem(struct iwl_priv *priv);
 395 void iwl_reset_traffic_log(struct iwl_priv *priv);
 396 void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
 397                                 u16 length, struct ieee80211_hdr *header);
 398 void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
 399                                 u16 length, struct ieee80211_hdr *header);
 400 const char *get_mgmt_string(int cmd);
 401 const char *get_ctrl_string(int cmd);
 402 void iwl_clear_traffic_stats(struct iwl_priv *priv);
 403 void iwl_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc,
 404                       u16 len);
 405 #else
 406 static inline int iwl_alloc_traffic_mem(struct iwl_priv *priv)
 407 {
 408         return 0;
 409 }
 410 static inline void iwl_free_traffic_mem(struct iwl_priv *priv)
 411 {
 412 }
 413 static inline void iwl_reset_traffic_log(struct iwl_priv *priv)
 414 {
 415 }
 416 static inline void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
 417                       u16 length, struct ieee80211_hdr *header)
 418 {
 419 }
 420 static inline void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
 421                       u16 length, struct ieee80211_hdr *header)
 422 {
 423 }
 424 static inline void iwl_update_stats(struct iwl_priv *priv, bool is_tx,
 425                                     __le16 fc, u16 len)
 426 {
 427         struct traffic_stats    *stats;
 428
 429         if (is_tx)
 430                 stats = &priv->tx_stats;
 431         else
 432                 stats = &priv->rx_stats;
 433
 434         if (ieee80211_is_data(fc)) {
 435                 /* data */
 436                 stats->data_bytes += len;
 437         }
 438         iwl_leds_background(priv);
 439 }
 440 #endif
 441 /*****************************************************
 442  * RX handlers.
 443  * **************************************************/
 444 void iwl_rx_pm_sleep_notif(struct iwl_priv *priv,
 445                            struct iwl_rx_mem_buffer *rxb);
 446 void iwl_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
 447                                       struct iwl_rx_mem_buffer *rxb);
 448 void iwl_rx_reply_error(struct iwl_priv *priv,
 449                         struct iwl_rx_mem_buffer *rxb);
 450
 451 /*****************************************************
 452 * RX
 453 ******************************************************/
 454 void iwl_cmd_queue_free(struct iwl_priv *priv);
 455 int iwl_rx_queue_alloc(struct iwl_priv *priv);
 456 void iwl_rx_handle(struct iwl_priv *priv);
 457 void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv,
 458                                   struct iwl_rx_queue *q);
 459 int iwl_rx_queue_space(const struct iwl_rx_queue *q);
 460 void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
 461 /* Handlers */
 462 void iwl_rx_spectrum_measure_notif(struct iwl_priv *priv,
 463                                           struct iwl_rx_mem_buffer *rxb);
 464 void iwl_recover_from_statistics(struct iwl_priv *priv,
 465                                 struct iwl_rx_packet *pkt);
 466 void iwl_chswitch_done(struct iwl_priv *priv, bool is_success);
 467 void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
 468
 469 /* TX helpers */
 470
 471 /*****************************************************
 472 * TX
 473 ******************************************************/
 474 void iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq);
 475 int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv,
 476                                  struct iwl_tx_queue *txq,
 477                                  dma_addr_t addr, u16 len, u8 reset, u8 pad);
 478 int iwl_hw_tx_queue_init(struct iwl_priv *priv,
 479                          struct iwl_tx_queue *txq);
 480 void iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq);
 481 int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
 482                       int slots_num, u32 txq_id);
 483 void iwl_tx_queue_reset(struct iwl_priv *priv, struct iwl_tx_queue *txq,
 484                         int slots_num, u32 txq_id);
 485 void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id);
 486 /*****************************************************
 487  * TX power
 488  ****************************************************/
 489 int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force);
 490
 491 /*******************************************************************************
 492  * Rate
 493  ******************************************************************************/
 494
 495 int iwl_hwrate_to_plcp_idx(u32 rate_n_flags);
 496
 497 u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv);
 498
 499 u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant_idx, u8 valid);
 500
 501 static inline u32 iwl_ant_idx_to_flags(u8 ant_idx)
 502 {
 503         return BIT(ant_idx) << RATE_MCS_ANT_POS;
 504 }
 505
 506 static inline u8 iwl_hw_get_rate(__le32 rate_n_flags)
 507 {
 508         return le32_to_cpu(rate_n_flags) & 0xFF;
 509 }
 510 static inline u32 iwl_hw_get_rate_n_flags(__le32 rate_n_flags)
 511 {
 512         return le32_to_cpu(rate_n_flags) & 0x1FFFF;
 513 }
 514 static inline __le32 iwl_hw_set_rate_n_flags(u8 rate, u32 flags)
 515 {
 516         return cpu_to_le32(flags|(u32)rate);
 517 }
 518
 519 /*******************************************************************************
 520  * Scanning
 521  ******************************************************************************/
 522 void iwl_init_scan_params(struct iwl_priv *priv);
 523 int iwl_scan_cancel(struct iwl_priv *priv);
 524 int iwl_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms);
 525 int iwl_mac_hw_scan(struct ieee80211_hw *hw,
 526                     struct ieee80211_vif *vif,
 527                     struct cfg80211_scan_request *req);
 528 void iwl_bg_start_internal_scan(struct work_struct *work);
 529 void iwl_internal_short_hw_scan(struct iwl_priv *priv);
 530 int iwl_force_reset(struct iwl_priv *priv, int mode, bool external);
 531 u16 iwl_fill_probe_req(struct iwl_priv *priv, struct ieee80211_mgmt *frame,
 532                        const u8 *ta, const u8 *ie, int ie_len, int left);
 533 void iwl_setup_rx_scan_handlers(struct iwl_priv *priv);
 534 u16 iwl_get_active_dwell_time(struct iwl_priv *priv,
 535                               enum ieee80211_band band,
 536                               u8 n_probes);
 537 u16 iwl_get_passive_dwell_time(struct iwl_priv *priv,
 538                                enum ieee80211_band band,
 539                                struct ieee80211_vif *vif);
 540 void iwl_bg_scan_check(struct work_struct *data);
 541 void iwl_bg_abort_scan(struct work_struct *work);
 542 void iwl_bg_scan_completed(struct work_struct *work);
 543 void iwl_setup_scan_deferred_work(struct iwl_priv *priv);
 544
 545 /* For faster active scanning, scan will move to the next channel if fewer than
 546  * PLCP_QUIET_THRESH packets are heard on this channel within
 547  * ACTIVE_QUIET_TIME after sending probe request.  This shortens the dwell
 548  * time if it's a quiet channel (nothing responded to our probe, and there's
 549  * no other traffic).
 550  * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
 551 #define IWL_ACTIVE_QUIET_TIME       cpu_to_le16(10)  /* msec */
 552 #define IWL_PLCP_QUIET_THRESH       cpu_to_le16(1)  /* packets */
 553
 554 #define IWL_SCAN_CHECK_WATCHDOG         (HZ * 7)
 555
 556 /*******************************************************************************
 557  * Calibrations - implemented in iwl-calib.c
 558  ******************************************************************************/
 559 int iwl_send_calib_results(struct iwl_priv *priv);
 560 int iwl_calib_set(struct iwl_calib_result *res, const u8 *buf, int len);
 561 void iwl_calib_free_results(struct iwl_priv *priv);
 562
 563 /*****************************************************
 564  *   S e n d i n g     H o s t     C o m m a n d s   *
 565  *****************************************************/
 566
 567 const char *get_cmd_string(u8 cmd);
 568 int __must_check iwl_send_cmd_sync(struct iwl_priv *priv,
 569                                    struct iwl_host_cmd *cmd);
 570 int iwl_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 571 int __must_check iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id,
 572                                   u16 len, const void *data);
 573 int iwl_send_cmd_pdu_async(struct iwl_priv *priv, u8 id, u16 len,
 574                            const void *data,
 575                            void (*callback)(struct iwl_priv *priv,
 576                                             struct iwl_device_cmd *cmd,
 577                                             struct iwl_rx_packet *pkt));
 578
 579 int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 580
 581 int iwl_send_card_state(struct iwl_priv *priv, u32 flags,
 582                         u8 meta_flag);
 583
 584 /*****************************************************
 585  * PCI                                               *
 586  *****************************************************/
 587 irqreturn_t iwl_isr_legacy(int irq, void *data);
 588
 589 static inline u16 iwl_pcie_link_ctl(struct iwl_priv *priv)
 590 {
 591         int pos;
 592         u16 pci_lnk_ctl;
 593         pos = pci_find_capability(priv->pci_dev, PCI_CAP_ID_EXP);
 594         pci_read_config_word(priv->pci_dev, pos + PCI_EXP_LNKCTL, &pci_lnk_ctl);
 595         return pci_lnk_ctl;
 596 }
 597
 598 void iwl_bg_monitor_recover(unsigned long data);
 599 u32 iwl_usecs_to_beacons(struct iwl_priv *priv, u32 usec, u32 beacon_interval);
 600 __le32 iwl_add_beacon_time(struct iwl_priv *priv, u32 base,
 601                            u32 addon, u32 beacon_interval);
 602
 603 #ifdef CONFIG_PM
 604 int iwl_pci_suspend(struct pci_dev *pdev, pm_message_t state);
 605 int iwl_pci_resume(struct pci_dev *pdev);
 606 #endif /* CONFIG_PM */
 607
 608 /*****************************************************
 609 *  Error Handling Debugging
 610 ******************************************************/
 611 void iwl_dump_nic_error_log(struct iwl_priv *priv);
 612 int iwl_dump_nic_event_log(struct iwl_priv *priv,
 613                            bool full_log, char **buf, bool display);
 614 void iwl_dump_csr(struct iwl_priv *priv);
 615 int iwl_dump_fh(struct iwl_priv *priv, char **buf, bool display);
 616 #ifdef CONFIG_IWLWIFI_DEBUG
 617 void iwl_print_rx_config_cmd(struct iwl_priv *priv);
 618 #else
 619 static inline void iwl_print_rx_config_cmd(struct iwl_priv *priv)
 620 {
 621 }
 622 #endif
 623
 624 void iwl_clear_isr_stats(struct iwl_priv *priv);
 625
 626 /*****************************************************
 627 *  GEOS
 628 ******************************************************/
 629 int iwlcore_init_geos(struct iwl_priv *priv);
 630 void iwlcore_free_geos(struct iwl_priv *priv);
 631
 632 /*************** DRIVER STATUS FUNCTIONS   *****/
 633
 634 #define STATUS_HCMD_ACTIVE      0       /* host command in progress */
 635 /* 1 is unused (used to be STATUS_HCMD_SYNC_ACTIVE) */
 636 #define STATUS_INT_ENABLED      2
 637 #define STATUS_RF_KILL_HW       3
 638 #define STATUS_CT_KILL          4
 639 #define STATUS_INIT             5
 640 #define STATUS_ALIVE            6
 641 #define STATUS_READY            7
 642 #define STATUS_TEMPERATURE      8
 643 #define STATUS_GEO_CONFIGURED   9
 644 #define STATUS_EXIT_PENDING     10
 645 #define STATUS_STATISTICS       12
 646 #define STATUS_SCANNING         13
 647 #define STATUS_SCAN_ABORTING    14
 648 #define STATUS_SCAN_HW          15
 649 #define STATUS_POWER_PMI        16
 650 #define STATUS_FW_ERROR         17
 651
 652
 653 static inline int iwl_is_ready(struct iwl_priv *priv)
 654 {
 655         /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
 656          * set but EXIT_PENDING is not */
 657         return test_bit(STATUS_READY, &priv->status) &&
 658                test_bit(STATUS_GEO_CONFIGURED, &priv->status) &&
 659                !test_bit(STATUS_EXIT_PENDING, &priv->status);
 660 }
 661
 662 static inline int iwl_is_alive(struct iwl_priv *priv)
 663 {
 664         return test_bit(STATUS_ALIVE, &priv->status);
 665 }
 666
 667 static inline int iwl_is_init(struct iwl_priv *priv)
 668 {
 669         return test_bit(STATUS_INIT, &priv->status);
 670 }
 671
 672 static inline int iwl_is_rfkill_hw(struct iwl_priv *priv)
 673 {
 674         return test_bit(STATUS_RF_KILL_HW, &priv->status);
 675 }
 676
 677 static inline int iwl_is_rfkill(struct iwl_priv *priv)
 678 {
 679         return iwl_is_rfkill_hw(priv);
 680 }
 681
 682 static inline int iwl_is_ctkill(struct iwl_priv *priv)
 683 {
 684         return test_bit(STATUS_CT_KILL, &priv->status);
 685 }
 686
 687 static inline int iwl_is_ready_rf(struct iwl_priv *priv)
 688 {
 689
 690         if (iwl_is_rfkill(priv))
 691                 return 0;
 692
 693         return iwl_is_ready(priv);
 694 }
 695
 696 extern void iwl_rf_kill_ct_config(struct iwl_priv *priv);
 697 extern void iwl_send_bt_config(struct iwl_priv *priv);
 698 extern int iwl_send_statistics_request(struct iwl_priv *priv,
 699                                        u8 flags, bool clear);
 700 extern int iwl_send_lq_cmd(struct iwl_priv *priv,
 701                 struct iwl_link_quality_cmd *lq, u8 flags, bool init);
 702 void iwl_apm_stop(struct iwl_priv *priv);
 703 int iwl_apm_init(struct iwl_priv *priv);
 704
 705 void iwl_setup_rxon_timing(struct iwl_priv *priv, struct ieee80211_vif *vif);
 706 static inline int iwl_send_rxon_assoc(struct iwl_priv *priv)
 707 {
 708         return priv->cfg->ops->hcmd->rxon_assoc(priv);
 709 }
 710 static inline int iwlcore_commit_rxon(struct iwl_priv *priv)
 711 {
 712         return priv->cfg->ops->hcmd->commit_rxon(priv);
 713 }
 714 static inline void iwlcore_config_ap(struct iwl_priv *priv,
 715                                      struct ieee80211_vif *vif)
 716 {
 717         priv->cfg->ops->lib->config_ap(priv, vif);
 718 }
 719 static inline const struct ieee80211_supported_band *iwl_get_hw_mode(
 720                         struct iwl_priv *priv, enum ieee80211_band band)
 721 {
 722         return priv->hw->wiphy->bands[band];
 723 }
 724 #endif /* __iwl_core_h__ */