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 IWL_SKU_G       0x1
  83 #define IWL_SKU_A       0x2
  84 #define IWL_SKU_N       0x8
  85
  86 #define IWL_CMD(x) case x: return #x
  87
  88 struct iwl_hcmd_ops {
  89         int (*rxon_assoc)(struct iwl_priv *priv);
  90         int (*commit_rxon)(struct iwl_priv *priv);
  91         void (*set_rxon_chain)(struct iwl_priv *priv);
  92         int (*set_tx_ant)(struct iwl_priv *priv, u8 valid_tx_ant);
  93         void (*send_bt_config)(struct iwl_priv *priv);
  94 };
  95
  96 struct iwl_hcmd_utils_ops {
  97         u16 (*get_hcmd_size)(u8 cmd_id, u16 len);
  98         u16 (*build_addsta_hcmd)(const struct iwl_addsta_cmd *cmd, u8 *data);
  99         void (*gain_computation)(struct iwl_priv *priv,
 100                         u32 *average_noise,
 101                         u16 min_average_noise_antennat_i,
 102                         u32 min_average_noise,
 103                         u8 default_chain);
 104         void (*chain_noise_reset)(struct iwl_priv *priv);
 105         void (*rts_tx_cmd_flag)(struct ieee80211_tx_info *info,
 106                         __le32 *tx_flags);
 107         int  (*calc_rssi)(struct iwl_priv *priv,
 108                           struct iwl_rx_phy_res *rx_resp);
 109         void (*request_scan)(struct iwl_priv *priv, struct ieee80211_vif *vif);
 110 };
 111
 112 struct iwl_apm_ops {
 113         int (*init)(struct iwl_priv *priv);
 114         void (*stop)(struct iwl_priv *priv);
 115         void (*config)(struct iwl_priv *priv);
 116         int (*set_pwr_src)(struct iwl_priv *priv, enum iwl_pwr_src src);
 117 };
 118
 119 struct iwl_debugfs_ops {
 120         ssize_t (*rx_stats_read)(struct file *file, char __user *user_buf,
 121                                  size_t count, loff_t *ppos);
 122         ssize_t (*tx_stats_read)(struct file *file, char __user *user_buf,
 123                                  size_t count, loff_t *ppos);
 124         ssize_t (*general_stats_read)(struct file *file, char __user *user_buf,
 125                                       size_t count, loff_t *ppos);
 126 };
 127
 128 struct iwl_temp_ops {
 129         void (*temperature)(struct iwl_priv *priv);
 130         void (*set_ct_kill)(struct iwl_priv *priv);
 131         void (*set_calib_version)(struct iwl_priv *priv);
 132 };
 133
 134 struct iwl_lib_ops {
 135         /* set hw dependent parameters */
 136         int (*set_hw_params)(struct iwl_priv *priv);
 137         /* Handling TX */
 138         void (*txq_update_byte_cnt_tbl)(struct iwl_priv *priv,
 139                                         struct iwl_tx_queue *txq,
 140                                         u16 byte_cnt);
 141         void (*txq_inval_byte_cnt_tbl)(struct iwl_priv *priv,
 142                                        struct iwl_tx_queue *txq);
 143         void (*txq_set_sched)(struct iwl_priv *priv, u32 mask);
 144         int (*txq_attach_buf_to_tfd)(struct iwl_priv *priv,
 145                                      struct iwl_tx_queue *txq,
 146                                      dma_addr_t addr,
 147                                      u16 len, u8 reset, u8 pad);
 148         void (*txq_free_tfd)(struct iwl_priv *priv,
 149                              struct iwl_tx_queue *txq);
 150         int (*txq_init)(struct iwl_priv *priv,
 151                         struct iwl_tx_queue *txq);
 152         /* aggregations */
 153         int (*txq_agg_enable)(struct iwl_priv *priv, int txq_id, int tx_fifo,
 154                               int sta_id, int tid, u16 ssn_idx);
 155         int (*txq_agg_disable)(struct iwl_priv *priv, u16 txq_id, u16 ssn_idx,
 156                                u8 tx_fifo);
 157         /* setup Rx handler */
 158         void (*rx_handler_setup)(struct iwl_priv *priv);
 159         /* setup deferred work */
 160         void (*setup_deferred_work)(struct iwl_priv *priv);
 161         /* cancel deferred work */
 162         void (*cancel_deferred_work)(struct iwl_priv *priv);
 163         /* alive notification after init uCode load */
 164         void (*init_alive_start)(struct iwl_priv *priv);
 165         /* alive notification */
 166         int (*alive_notify)(struct iwl_priv *priv);
 167         /* check validity of rtc data address */
 168         int (*is_valid_rtc_data_addr)(u32 addr);
 169         /* 1st ucode load */
 170         int (*load_ucode)(struct iwl_priv *priv);
 171         int (*dump_nic_event_log)(struct iwl_priv *priv,
 172                                   bool full_log, char **buf, bool display);
 173         void (*dump_nic_error_log)(struct iwl_priv *priv);
 174         void (*dump_csr)(struct iwl_priv *priv);
 175         int (*dump_fh)(struct iwl_priv *priv, char **buf, bool display);
 176         int (*set_channel_switch)(struct iwl_priv *priv, u16 channel);
 177         /* power management */
 178         struct iwl_apm_ops apm_ops;
 179
 180         /* power */
 181         int (*send_tx_power) (struct iwl_priv *priv);
 182         void (*update_chain_flags)(struct iwl_priv *priv);
 183         void (*post_associate)(struct iwl_priv *priv,
 184                                struct ieee80211_vif *vif);
 185         void (*config_ap)(struct iwl_priv *priv, struct ieee80211_vif *vif);
 186         irqreturn_t (*isr) (int irq, void *data);
 187
 188         /* eeprom operations (as defined in iwl-eeprom.h) */
 189         struct iwl_eeprom_ops eeprom_ops;
 190
 191         /* temperature */
 192         struct iwl_temp_ops temp_ops;
 193         /* station management */
 194         int (*manage_ibss_station)(struct iwl_priv *priv,
 195                                    struct ieee80211_vif *vif, bool add);
 196         /* recover from tx queue stall */
 197         void (*recover_from_tx_stall)(unsigned long data);
 198         /* check for plcp health */
 199         bool (*check_plcp_health)(struct iwl_priv *priv,
 200                                         struct iwl_rx_packet *pkt);
 201         /* check for ack health */
 202         bool (*check_ack_health)(struct iwl_priv *priv,
 203                                         struct iwl_rx_packet *pkt);
 204         struct iwl_debugfs_ops debugfs_ops;
 205 };
 206
 207 struct iwl_led_ops {
 208         int (*cmd)(struct iwl_priv *priv, struct iwl_led_cmd *led_cmd);
 209         int (*on)(struct iwl_priv *priv);
 210         int (*off)(struct iwl_priv *priv);
 211 };
 212
 213 struct iwl_ops {
 214         const struct iwl_lib_ops *lib;
 215         const struct iwl_hcmd_ops *hcmd;
 216         const struct iwl_hcmd_utils_ops *utils;
 217         const struct iwl_led_ops *led;
 218 };
 219
 220 struct iwl_mod_params {
 221         int sw_crypto;          /* def: 0 = using hardware encryption */
 222         int disable_hw_scan;    /* def: 0 = use h/w scan */
 223         int num_of_queues;      /* def: HW dependent */
 224         int disable_11n;        /* def: 0 = 11n capabilities enabled */
 225         int amsdu_size_8K;      /* def: 1 = enable 8K amsdu size */
 226         int antenna;            /* def: 0 = both antennas (use diversity) */
 227         int restart_fw;         /* def: 1 = restart firmware */
 228 };
 229
 230 /**
 231  * struct iwl_cfg
 232  * @fw_name_pre: Firmware filename prefix. The api version and extension
 233  *      (.ucode) will be added to filename before loading from disk. The
 234  *      filename is constructed as fw_name_pre<api>.ucode.
 235  * @ucode_api_max: Highest version of uCode API supported by driver.
 236  * @ucode_api_min: Lowest version of uCode API supported by driver.
 237  * @pa_type: used by 6000 series only to identify the type of Power Amplifier
 238  * @max_ll_items: max number of OTP blocks
 239  * @shadow_ram_support: shadow support for OTP memory
 240  * @led_compensation: compensate on the led on/off time per HW according
 241  *      to the deviation to achieve the desired led frequency.
 242  *      The detail algorithm is described in iwl-led.c
 243  * @use_rts_for_ht: use rts/cts protection for HT traffic
 244  * @chain_noise_num_beacons: number of beacons used to compute chain noise
 245  * @adv_thermal_throttle: support advance thermal throttle
 246  * @support_ct_kill_exit: support ct kill exit condition
 247  * @support_wimax_coexist: support wimax/wifi co-exist
 248  * @plcp_delta_threshold: plcp error rate threshold used to trigger
 249  *      radio tuning when there is a high receiving plcp error rate
 250  * @chain_noise_scale: default chain noise scale used for gain computation
 251  * @monitor_recover_period: default timer used to check stuck queues
 252  * @temperature_kelvin: temperature report by uCode in kelvin
 253  * @max_event_log_size: size of event log buffer size for ucode event logging
 254  * @tx_power_by_driver: tx power calibration performed by driver
 255  *      instead of uCode
 256  * @ucode_tracing: support ucode continuous tracing
 257  * @sensitivity_calib_by_driver: driver has the capability to perform
 258  *      sensitivity calibration operation
 259  * @chain_noise_calib_by_driver: driver has the capability to perform
 260  *      chain noise calibration operation
 261  * @scan_antennas: available antenna for scan operation
 262  *
 263  * We enable the driver to be backward compatible wrt API version. The
 264  * driver specifies which APIs it supports (with @ucode_api_max being the
 265  * highest and @ucode_api_min the lowest). Firmware will only be loaded if
 266  * it has a supported API version. The firmware's API version will be
 267  * stored in @iwl_priv, enabling the driver to make runtime changes based
 268  * on firmware version used.
 269  *
 270  * For example,
 271  * if (IWL_UCODE_API(priv->ucode_ver) >= 2) {
 272  *      Driver interacts with Firmware API version >= 2.
 273  * } else {
 274  *      Driver interacts with Firmware API version 1.
 275  * }
 276  *
 277  * The ideal usage of this infrastructure is to treat a new ucode API
 278  * release as a new hardware revision. That is, through utilizing the
 279  * iwl_hcmd_utils_ops etc. we accommodate different command structures
 280  * and flows between hardware versions (4965/5000) as well as their API
 281  * versions.
 282  *
 283  */
 284 struct iwl_cfg {
 285         const char *name;
 286         const char *fw_name_pre;
 287         const unsigned int ucode_api_max;
 288         const unsigned int ucode_api_min;
 289         unsigned int sku;
 290         int eeprom_size;
 291         u16  eeprom_ver;
 292         u16  eeprom_calib_ver;
 293         int num_of_queues;      /* def: HW dependent */
 294         int num_of_ampdu_queues;/* def: HW dependent */
 295         const struct iwl_ops *ops;
 296         const struct iwl_mod_params *mod_params;
 297         u8   valid_tx_ant;
 298         u8   valid_rx_ant;
 299
 300         /* for iwl_apm_init() */
 301         u32 pll_cfg_val;
 302         bool set_l0s;
 303         bool use_bsm;
 304
 305         bool use_isr_legacy;
 306         enum iwl_pa_type pa_type;
 307         const u16 max_ll_items;
 308         const bool shadow_ram_support;
 309         const bool ht_greenfield_support;
 310         u16 led_compensation;
 311         const bool broken_powersave;
 312         bool use_rts_for_ht;
 313         int chain_noise_num_beacons;
 314         const bool supports_idle;
 315         bool adv_thermal_throttle;
 316         bool support_ct_kill_exit;
 317         const bool support_wimax_coexist;
 318         u8 plcp_delta_threshold;
 319         s32 chain_noise_scale;
 320         /* timer period for monitor the driver queues */
 321         u32 monitor_recover_period;
 322         bool temperature_kelvin;
 323         u32 max_event_log_size;
 324         const bool tx_power_by_driver;
 325         const bool ucode_tracing;
 326         const bool sensitivity_calib_by_driver;
 327         const bool chain_noise_calib_by_driver;
 328         u8 scan_antennas[IEEE80211_NUM_BANDS];
 329 };
 330
 331 /***************************
 332  *   L i b                 *
 333  ***************************/
 334
 335 struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg,
 336                 struct ieee80211_ops *hw_ops);
 337 void iwl_hw_detect(struct iwl_priv *priv);
 338 void iwl_activate_qos(struct iwl_priv *priv);
 339 int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
 340                     const struct ieee80211_tx_queue_params *params);
 341 void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt);
 342 int iwl_check_rxon_cmd(struct iwl_priv *priv);
 343 int iwl_full_rxon_required(struct iwl_priv *priv);
 344 void iwl_set_rxon_chain(struct iwl_priv *priv);
 345 int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch);
 346 void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf);
 347 u8 iwl_is_ht40_tx_allowed(struct iwl_priv *priv,
 348                          struct ieee80211_sta_ht_cap *sta_ht_inf);
 349 void iwl_connection_init_rx_config(struct iwl_priv *priv,
 350                                    struct ieee80211_vif *vif);
 351 int iwl_set_decrypted_flag(struct iwl_priv *priv,
 352                            struct ieee80211_hdr *hdr,
 353                            u32 decrypt_res,
 354                            struct ieee80211_rx_status *stats);
 355 void iwl_irq_handle_error(struct iwl_priv *priv);
 356 void iwl_configure_filter(struct ieee80211_hw *hw,
 357                           unsigned int changed_flags,
 358                           unsigned int *total_flags, u64 multicast);
 359 int iwl_set_hw_params(struct iwl_priv *priv);
 360 void iwl_post_associate(struct iwl_priv *priv, struct ieee80211_vif *vif);
 361 void iwl_bss_info_changed(struct ieee80211_hw *hw,
 362                                      struct ieee80211_vif *vif,
 363                                      struct ieee80211_bss_conf *bss_conf,
 364                                      u32 changes);
 365 int iwl_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb);
 366 int iwl_commit_rxon(struct iwl_priv *priv);
 367 int iwl_mac_add_interface(struct ieee80211_hw *hw,
 368                           struct ieee80211_vif *vif);
 369 void iwl_mac_remove_interface(struct ieee80211_hw *hw,
 370                               struct ieee80211_vif *vif);
 371 int iwl_mac_config(struct ieee80211_hw *hw, u32 changed);
 372 void iwl_config_ap(struct iwl_priv *priv, struct ieee80211_vif *vif);
 373 void iwl_mac_reset_tsf(struct ieee80211_hw *hw);
 374 int iwl_alloc_txq_mem(struct iwl_priv *priv);
 375 void iwl_free_txq_mem(struct iwl_priv *priv);
 376 void iwlcore_rts_tx_cmd_flag(struct ieee80211_tx_info *info,
 377                                 __le32 *tx_flags);
 378 #ifdef CONFIG_IWLWIFI_DEBUGFS
 379 int iwl_alloc_traffic_mem(struct iwl_priv *priv);
 380 void iwl_free_traffic_mem(struct iwl_priv *priv);
 381 void iwl_reset_traffic_log(struct iwl_priv *priv);
 382 void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
 383                                 u16 length, struct ieee80211_hdr *header);
 384 void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
 385                                 u16 length, struct ieee80211_hdr *header);
 386 const char *get_mgmt_string(int cmd);
 387 const char *get_ctrl_string(int cmd);
 388 void iwl_clear_traffic_stats(struct iwl_priv *priv);
 389 void iwl_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc,
 390                       u16 len);
 391 #else
 392 static inline int iwl_alloc_traffic_mem(struct iwl_priv *priv)
 393 {
 394         return 0;
 395 }
 396 static inline void iwl_free_traffic_mem(struct iwl_priv *priv)
 397 {
 398 }
 399 static inline void iwl_reset_traffic_log(struct iwl_priv *priv)
 400 {
 401 }
 402 static inline void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
 403                       u16 length, struct ieee80211_hdr *header)
 404 {
 405 }
 406 static inline void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
 407                       u16 length, struct ieee80211_hdr *header)
 408 {
 409 }
 410 static inline void iwl_update_stats(struct iwl_priv *priv, bool is_tx,
 411                                     __le16 fc, u16 len)
 412 {
 413         struct traffic_stats    *stats;
 414
 415         if (is_tx)
 416                 stats = &priv->tx_stats;
 417         else
 418                 stats = &priv->rx_stats;
 419
 420         if (ieee80211_is_data(fc)) {
 421                 /* data */
 422                 stats->data_bytes += len;
 423         }
 424         iwl_leds_background(priv);
 425 }
 426 #endif
 427 /*****************************************************
 428  * RX handlers.
 429  * **************************************************/
 430 void iwl_rx_pm_sleep_notif(struct iwl_priv *priv,
 431                            struct iwl_rx_mem_buffer *rxb);
 432 void iwl_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
 433                                       struct iwl_rx_mem_buffer *rxb);
 434 void iwl_rx_reply_error(struct iwl_priv *priv,
 435                         struct iwl_rx_mem_buffer *rxb);
 436
 437 /*****************************************************
 438 * RX
 439 ******************************************************/
 440 void iwl_cmd_queue_free(struct iwl_priv *priv);
 441 int iwl_rx_queue_alloc(struct iwl_priv *priv);
 442 void iwl_rx_handle(struct iwl_priv *priv);
 443 void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv,
 444                                   struct iwl_rx_queue *q);
 445 int iwl_rx_queue_space(const struct iwl_rx_queue *q);
 446 void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
 447 /* Handlers */
 448 void iwl_rx_missed_beacon_notif(struct iwl_priv *priv,
 449                                struct iwl_rx_mem_buffer *rxb);
 450 void iwl_rx_spectrum_measure_notif(struct iwl_priv *priv,
 451                                           struct iwl_rx_mem_buffer *rxb);
 452 bool iwl_good_plcp_health(struct iwl_priv *priv,
 453                                  struct iwl_rx_packet *pkt);
 454 bool iwl_good_ack_health(struct iwl_priv *priv,
 455                                  struct iwl_rx_packet *pkt);
 456 void iwl_recover_from_statistics(struct iwl_priv *priv,
 457                                 struct iwl_rx_packet *pkt);
 458 void iwl_rx_statistics(struct iwl_priv *priv,
 459                               struct iwl_rx_mem_buffer *rxb);
 460 void iwl_reply_statistics(struct iwl_priv *priv,
 461                           struct iwl_rx_mem_buffer *rxb);
 462 void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
 463
 464 /* TX helpers */
 465
 466 /*****************************************************
 467 * TX
 468 ******************************************************/
 469 void iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq);
 470 int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv,
 471                                  struct iwl_tx_queue *txq,
 472                                  dma_addr_t addr, u16 len, u8 reset, u8 pad);
 473 int iwl_hw_tx_queue_init(struct iwl_priv *priv,
 474                          struct iwl_tx_queue *txq);
 475 void iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq);
 476 int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
 477                       int slots_num, u32 txq_id);
 478 void iwl_tx_queue_reset(struct iwl_priv *priv, struct iwl_tx_queue *txq,
 479                         int slots_num, u32 txq_id);
 480 void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id);
 481 /*****************************************************
 482  * TX power
 483  ****************************************************/
 484 int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force);
 485
 486 /*******************************************************************************
 487  * Rate
 488  ******************************************************************************/
 489
 490 int iwl_hwrate_to_plcp_idx(u32 rate_n_flags);
 491
 492 u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv);
 493
 494 u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant_idx);
 495
 496 static inline u32 iwl_ant_idx_to_flags(u8 ant_idx)
 497 {
 498         return BIT(ant_idx) << RATE_MCS_ANT_POS;
 499 }
 500
 501 static inline u8 iwl_hw_get_rate(__le32 rate_n_flags)
 502 {
 503         return le32_to_cpu(rate_n_flags) & 0xFF;
 504 }
 505 static inline u32 iwl_hw_get_rate_n_flags(__le32 rate_n_flags)
 506 {
 507         return le32_to_cpu(rate_n_flags) & 0x1FFFF;
 508 }
 509 static inline __le32 iwl_hw_set_rate_n_flags(u8 rate, u32 flags)
 510 {
 511         return cpu_to_le32(flags|(u32)rate);
 512 }
 513
 514 /*******************************************************************************
 515  * Scanning
 516  ******************************************************************************/
 517 void iwl_init_scan_params(struct iwl_priv *priv);
 518 int iwl_scan_cancel(struct iwl_priv *priv);
 519 int iwl_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms);
 520 int iwl_mac_hw_scan(struct ieee80211_hw *hw,
 521                     struct ieee80211_vif *vif,
 522                     struct cfg80211_scan_request *req);
 523 void iwl_bg_start_internal_scan(struct work_struct *work);
 524 void iwl_internal_short_hw_scan(struct iwl_priv *priv);
 525 int iwl_force_reset(struct iwl_priv *priv, int mode);
 526 u16 iwl_fill_probe_req(struct iwl_priv *priv, struct ieee80211_mgmt *frame,
 527                        const u8 *ie, int ie_len, int left);
 528 void iwl_setup_rx_scan_handlers(struct iwl_priv *priv);
 529 u16 iwl_get_active_dwell_time(struct iwl_priv *priv,
 530                               enum ieee80211_band band,
 531                               u8 n_probes);
 532 u16 iwl_get_passive_dwell_time(struct iwl_priv *priv,
 533                                enum ieee80211_band band,
 534                                struct ieee80211_vif *vif);
 535 void iwl_bg_scan_check(struct work_struct *data);
 536 void iwl_bg_abort_scan(struct work_struct *work);
 537 void iwl_bg_scan_completed(struct work_struct *work);
 538 void iwl_setup_scan_deferred_work(struct iwl_priv *priv);
 539
 540 /* For faster active scanning, scan will move to the next channel if fewer than
 541  * PLCP_QUIET_THRESH packets are heard on this channel within
 542  * ACTIVE_QUIET_TIME after sending probe request.  This shortens the dwell
 543  * time if it's a quiet channel (nothing responded to our probe, and there's
 544  * no other traffic).
 545  * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
 546 #define IWL_ACTIVE_QUIET_TIME       cpu_to_le16(10)  /* msec */
 547 #define IWL_PLCP_QUIET_THRESH       cpu_to_le16(1)  /* packets */
 548
 549 #define IWL_SCAN_CHECK_WATCHDOG         (HZ * 7)
 550
 551 /*******************************************************************************
 552  * Calibrations - implemented in iwl-calib.c
 553  ******************************************************************************/
 554 int iwl_send_calib_results(struct iwl_priv *priv);
 555 int iwl_calib_set(struct iwl_calib_result *res, const u8 *buf, int len);
 556 void iwl_calib_free_results(struct iwl_priv *priv);
 557
 558 /*****************************************************
 559  *   S e n d i n g     H o s t     C o m m a n d s   *
 560  *****************************************************/
 561
 562 const char *get_cmd_string(u8 cmd);
 563 int __must_check iwl_send_cmd_sync(struct iwl_priv *priv,
 564                                    struct iwl_host_cmd *cmd);
 565 int iwl_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 566 int __must_check iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id,
 567                                   u16 len, const void *data);
 568 int iwl_send_cmd_pdu_async(struct iwl_priv *priv, u8 id, u16 len,
 569                            const void *data,
 570                            void (*callback)(struct iwl_priv *priv,
 571                                             struct iwl_device_cmd *cmd,
 572                                             struct iwl_rx_packet *pkt));
 573
 574 int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 575
 576 int iwl_send_card_state(struct iwl_priv *priv, u32 flags,
 577                         u8 meta_flag);
 578
 579 /*****************************************************
 580  * PCI                                               *
 581  *****************************************************/
 582 irqreturn_t iwl_isr_legacy(int irq, void *data);
 583
 584 static inline u16 iwl_pcie_link_ctl(struct iwl_priv *priv)
 585 {
 586         int pos;
 587         u16 pci_lnk_ctl;
 588         pos = pci_find_capability(priv->pci_dev, PCI_CAP_ID_EXP);
 589         pci_read_config_word(priv->pci_dev, pos + PCI_EXP_LNKCTL, &pci_lnk_ctl);
 590         return pci_lnk_ctl;
 591 }
 592
 593 void iwl_bg_monitor_recover(unsigned long data);
 594
 595 #ifdef CONFIG_PM
 596 int iwl_pci_suspend(struct pci_dev *pdev, pm_message_t state);
 597 int iwl_pci_resume(struct pci_dev *pdev);
 598 #endif /* CONFIG_PM */
 599
 600 /*****************************************************
 601 *  Error Handling Debugging
 602 ******************************************************/
 603 void iwl_dump_nic_error_log(struct iwl_priv *priv);
 604 int iwl_dump_nic_event_log(struct iwl_priv *priv,
 605                            bool full_log, char **buf, bool display);
 606 void iwl_dump_csr(struct iwl_priv *priv);
 607 int iwl_dump_fh(struct iwl_priv *priv, char **buf, bool display);
 608 #ifdef CONFIG_IWLWIFI_DEBUG
 609 void iwl_print_rx_config_cmd(struct iwl_priv *priv);
 610 #else
 611 static inline void iwl_print_rx_config_cmd(struct iwl_priv *priv)
 612 {
 613 }
 614 #endif
 615
 616 void iwl_clear_isr_stats(struct iwl_priv *priv);
 617
 618 /*****************************************************
 619 *  GEOS
 620 ******************************************************/
 621 int iwlcore_init_geos(struct iwl_priv *priv);
 622 void iwlcore_free_geos(struct iwl_priv *priv);
 623
 624 /*************** DRIVER STATUS FUNCTIONS   *****/
 625
 626 #define STATUS_HCMD_ACTIVE      0       /* host command in progress */
 627 /* 1 is unused (used to be STATUS_HCMD_SYNC_ACTIVE) */
 628 #define STATUS_INT_ENABLED      2
 629 #define STATUS_RF_KILL_HW       3
 630 #define STATUS_CT_KILL          4
 631 #define STATUS_INIT             5
 632 #define STATUS_ALIVE            6
 633 #define STATUS_READY            7
 634 #define STATUS_TEMPERATURE      8
 635 #define STATUS_GEO_CONFIGURED   9
 636 #define STATUS_EXIT_PENDING     10
 637 #define STATUS_STATISTICS       12
 638 #define STATUS_SCANNING         13
 639 #define STATUS_SCAN_ABORTING    14
 640 #define STATUS_SCAN_HW          15
 641 #define STATUS_POWER_PMI        16
 642 #define STATUS_FW_ERROR         17
 643
 644
 645 static inline int iwl_is_ready(struct iwl_priv *priv)
 646 {
 647         /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
 648          * set but EXIT_PENDING is not */
 649         return test_bit(STATUS_READY, &priv->status) &&
 650                test_bit(STATUS_GEO_CONFIGURED, &priv->status) &&
 651                !test_bit(STATUS_EXIT_PENDING, &priv->status);
 652 }
 653
 654 static inline int iwl_is_alive(struct iwl_priv *priv)
 655 {
 656         return test_bit(STATUS_ALIVE, &priv->status);
 657 }
 658
 659 static inline int iwl_is_init(struct iwl_priv *priv)
 660 {
 661         return test_bit(STATUS_INIT, &priv->status);
 662 }
 663
 664 static inline int iwl_is_rfkill_hw(struct iwl_priv *priv)
 665 {
 666         return test_bit(STATUS_RF_KILL_HW, &priv->status);
 667 }
 668
 669 static inline int iwl_is_rfkill(struct iwl_priv *priv)
 670 {
 671         return iwl_is_rfkill_hw(priv);
 672 }
 673
 674 static inline int iwl_is_ctkill(struct iwl_priv *priv)
 675 {
 676         return test_bit(STATUS_CT_KILL, &priv->status);
 677 }
 678
 679 static inline int iwl_is_ready_rf(struct iwl_priv *priv)
 680 {
 681
 682         if (iwl_is_rfkill(priv))
 683                 return 0;
 684
 685         return iwl_is_ready(priv);
 686 }
 687
 688 extern void iwl_rf_kill_ct_config(struct iwl_priv *priv);
 689 extern void iwl_send_bt_config(struct iwl_priv *priv);
 690 extern int iwl_send_statistics_request(struct iwl_priv *priv,
 691                                        u8 flags, bool clear);
 692 extern int iwl_verify_ucode(struct iwl_priv *priv);
 693 extern int iwl_send_lq_cmd(struct iwl_priv *priv,
 694                 struct iwl_link_quality_cmd *lq, u8 flags, bool init);
 695 void iwl_apm_stop(struct iwl_priv *priv);
 696 int iwl_apm_init(struct iwl_priv *priv);
 697
 698 void iwl_setup_rxon_timing(struct iwl_priv *priv, struct ieee80211_vif *vif);
 699 static inline int iwl_send_rxon_assoc(struct iwl_priv *priv)
 700 {
 701         return priv->cfg->ops->hcmd->rxon_assoc(priv);
 702 }
 703 static inline int iwlcore_commit_rxon(struct iwl_priv *priv)
 704 {
 705         return priv->cfg->ops->hcmd->commit_rxon(priv);
 706 }
 707 static inline void iwlcore_config_ap(struct iwl_priv *priv,
 708                                      struct ieee80211_vif *vif)
 709 {
 710         priv->cfg->ops->lib->config_ap(priv, vif);
 711 }
 712 static inline const struct ieee80211_supported_band *iwl_get_hw_mode(
 713                         struct iwl_priv *priv, enum ieee80211_band band)
 714 {
 715         return priv->hw->wiphy->bands[band];
 716 }
 717 #endif /* __iwl_core_h__ */