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 - 2009 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 - 2009 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 #include <linux/utsrelease.h>
  67
  68 /************************
  69  * forward declarations *
  70  ************************/
  71 struct iwl_host_cmd;
  72 struct iwl_cmd;
  73
  74
  75 #define IWLWIFI_VERSION UTS_RELEASE "-k"
  76 #define DRV_COPYRIGHT   "Copyright(c) 2003-2009 Intel Corporation"
  77 #define DRV_AUTHOR     "<ilw@linux.intel.com>"
  78
  79 #define IWL_PCI_DEVICE(dev, subdev, cfg) \
  80         .vendor = PCI_VENDOR_ID_INTEL,  .device = (dev), \
  81         .subvendor = PCI_ANY_ID, .subdevice = (subdev), \
  82         .driver_data = (kernel_ulong_t)&(cfg)
  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 };
  96
  97 struct iwl_hcmd_utils_ops {
  98         u16 (*get_hcmd_size)(u8 cmd_id, u16 len);
  99         u16 (*build_addsta_hcmd)(const struct iwl_addsta_cmd *cmd, u8 *data);
 100         void (*gain_computation)(struct iwl_priv *priv,
 101                         u32 *average_noise,
 102                         u16 min_average_noise_antennat_i,
 103                         u32 min_average_noise,
 104                         u8 default_chain);
 105         void (*chain_noise_reset)(struct iwl_priv *priv);
 106         void (*rts_tx_cmd_flag)(struct ieee80211_tx_info *info,
 107                         __le32 *tx_flags);
 108         int  (*calc_rssi)(struct iwl_priv *priv,
 109                           struct iwl_rx_phy_res *rx_resp);
 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_temp_ops {
 120         void (*temperature)(struct iwl_priv *priv);
 121         void (*set_ct_kill)(struct iwl_priv *priv);
 122 };
 123
 124 struct iwl_ucode_ops {
 125         u32 (*get_header_size)(u32);
 126         u32 (*get_build)(const struct iwl_ucode_header *, u32);
 127         u32 (*get_inst_size)(const struct iwl_ucode_header *, u32);
 128         u32 (*get_data_size)(const struct iwl_ucode_header *, u32);
 129         u32 (*get_init_size)(const struct iwl_ucode_header *, u32);
 130         u32 (*get_init_data_size)(const struct iwl_ucode_header *, u32);
 131         u32 (*get_boot_size)(const struct iwl_ucode_header *, u32);
 132         u8 * (*get_data)(const struct iwl_ucode_header *, u32);
 133 };
 134
 135 struct iwl_lib_ops {
 136         /* set hw dependent parameters */
 137         int (*set_hw_params)(struct iwl_priv *priv);
 138         /* Handling TX */
 139         void (*txq_update_byte_cnt_tbl)(struct iwl_priv *priv,
 140                                         struct iwl_tx_queue *txq,
 141                                         u16 byte_cnt);
 142         void (*txq_inval_byte_cnt_tbl)(struct iwl_priv *priv,
 143                                        struct iwl_tx_queue *txq);
 144         void (*txq_set_sched)(struct iwl_priv *priv, u32 mask);
 145         int (*txq_attach_buf_to_tfd)(struct iwl_priv *priv,
 146                                      struct iwl_tx_queue *txq,
 147                                      dma_addr_t addr,
 148                                      u16 len, u8 reset, u8 pad);
 149         void (*txq_free_tfd)(struct iwl_priv *priv,
 150                              struct iwl_tx_queue *txq);
 151         int (*txq_init)(struct iwl_priv *priv,
 152                         struct iwl_tx_queue *txq);
 153         /* aggregations */
 154         int (*txq_agg_enable)(struct iwl_priv *priv, int txq_id, int tx_fifo,
 155                               int sta_id, int tid, u16 ssn_idx);
 156         int (*txq_agg_disable)(struct iwl_priv *priv, u16 txq_id, u16 ssn_idx,
 157                                u8 tx_fifo);
 158         /* setup Rx handler */
 159         void (*rx_handler_setup)(struct iwl_priv *priv);
 160         /* setup deferred work */
 161         void (*setup_deferred_work)(struct iwl_priv *priv);
 162         /* cancel deferred work */
 163         void (*cancel_deferred_work)(struct iwl_priv *priv);
 164         /* alive notification after init uCode load */
 165         void (*init_alive_start)(struct iwl_priv *priv);
 166         /* alive notification */
 167         int (*alive_notify)(struct iwl_priv *priv);
 168         /* check validity of rtc data address */
 169         int (*is_valid_rtc_data_addr)(u32 addr);
 170         /* 1st ucode load */
 171         int (*load_ucode)(struct iwl_priv *priv);
 172         int (*dump_nic_event_log)(struct iwl_priv *priv,
 173                                   bool full_log, char **buf, bool display);
 174         void (*dump_nic_error_log)(struct iwl_priv *priv);
 175         void (*dump_csr)(struct iwl_priv *priv);
 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         void (*config_ap) (struct iwl_priv *priv);
 185         irqreturn_t (*isr) (int irq, void *data);
 186
 187         /* eeprom operations (as defined in iwl-eeprom.h) */
 188         struct iwl_eeprom_ops eeprom_ops;
 189
 190         /* temperature */
 191         struct iwl_temp_ops temp_ops;
 192 };
 193
 194 struct iwl_led_ops {
 195         int (*cmd)(struct iwl_priv *priv, struct iwl_led_cmd *led_cmd);
 196         int (*on)(struct iwl_priv *priv);
 197         int (*off)(struct iwl_priv *priv);
 198 };
 199
 200 struct iwl_ops {
 201         const struct iwl_ucode_ops *ucode;
 202         const struct iwl_lib_ops *lib;
 203         const struct iwl_hcmd_ops *hcmd;
 204         const struct iwl_hcmd_utils_ops *utils;
 205         const struct iwl_led_ops *led;
 206 };
 207
 208 struct iwl_mod_params {
 209         int sw_crypto;          /* def: 0 = using hardware encryption */
 210         int disable_hw_scan;    /* def: 0 = use h/w scan */
 211         int num_of_queues;      /* def: HW dependent */
 212         int disable_11n;        /* def: 0 = 11n capabilities enabled */
 213         int amsdu_size_8K;      /* def: 1 = enable 8K amsdu size */
 214         int antenna;            /* def: 0 = both antennas (use diversity) */
 215         int restart_fw;         /* def: 1 = restart firmware */
 216 };
 217
 218 /**
 219  * struct iwl_cfg
 220  * @fw_name_pre: Firmware filename prefix. The api version and extension
 221  *      (.ucode) will be added to filename before loading from disk. The
 222  *      filename is constructed as fw_name_pre<api>.ucode.
 223  * @ucode_api_max: Highest version of uCode API supported by driver.
 224  * @ucode_api_min: Lowest version of uCode API supported by driver.
 225  * @pa_type: used by 6000 series only to identify the type of Power Amplifier
 226  * @max_ll_items: max number of OTP blocks
 227  * @shadow_ram_support: shadow support for OTP memory
 228  * @led_compensation: compensate on the led on/off time per HW according
 229  *      to the deviation to achieve the desired led frequency.
 230  *      The detail algorithm is described in iwl-led.c
 231  * @use_rts_for_ht: use rts/cts protection for HT traffic
 232  * @chain_noise_num_beacons: number of beacons used to compute chain noise
 233  * @adv_thermal_throttle: support advance thermal throttle
 234  * @support_ct_kill_exit: support ct kill exit condition
 235  * @support_wimax_coexist: support wimax/wifi co-exist
 236  *
 237  * We enable the driver to be backward compatible wrt API version. The
 238  * driver specifies which APIs it supports (with @ucode_api_max being the
 239  * highest and @ucode_api_min the lowest). Firmware will only be loaded if
 240  * it has a supported API version. The firmware's API version will be
 241  * stored in @iwl_priv, enabling the driver to make runtime changes based
 242  * on firmware version used.
 243  *
 244  * For example,
 245  * if (IWL_UCODE_API(priv->ucode_ver) >= 2) {
 246  *      Driver interacts with Firmware API version >= 2.
 247  * } else {
 248  *      Driver interacts with Firmware API version 1.
 249  * }
 250  *
 251  * The ideal usage of this infrastructure is to treat a new ucode API
 252  * release as a new hardware revision. That is, through utilizing the
 253  * iwl_hcmd_utils_ops etc. we accommodate different command structures
 254  * and flows between hardware versions (4965/5000) as well as their API
 255  * versions.
 256  *
 257  */
 258 struct iwl_cfg {
 259         const char *name;
 260         const char *fw_name_pre;
 261         const unsigned int ucode_api_max;
 262         const unsigned int ucode_api_min;
 263         unsigned int sku;
 264         int eeprom_size;
 265         u16  eeprom_ver;
 266         u16  eeprom_calib_ver;
 267         int num_of_queues;      /* def: HW dependent */
 268         int num_of_ampdu_queues;/* def: HW dependent */
 269         const struct iwl_ops *ops;
 270         const struct iwl_mod_params *mod_params;
 271         u8   valid_tx_ant;
 272         u8   valid_rx_ant;
 273
 274         /* for iwl_apm_init() */
 275         u32 pll_cfg_val;
 276         bool set_l0s;
 277         bool use_bsm;
 278
 279         bool use_isr_legacy;
 280         enum iwl_pa_type pa_type;
 281         const u16 max_ll_items;
 282         const bool shadow_ram_support;
 283         const bool ht_greenfield_support;
 284         u16 led_compensation;
 285         const bool broken_powersave;
 286         bool use_rts_for_ht;
 287         int chain_noise_num_beacons;
 288         const bool supports_idle;
 289         bool adv_thermal_throttle;
 290         bool support_ct_kill_exit;
 291         const bool support_wimax_coexist;
 292 };
 293
 294 /***************************
 295  *   L i b                 *
 296  ***************************/
 297
 298 struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg,
 299                 struct ieee80211_ops *hw_ops);
 300 void iwl_hw_detect(struct iwl_priv *priv);
 301 void iwl_reset_qos(struct iwl_priv *priv);
 302 void iwl_activate_qos(struct iwl_priv *priv, u8 force);
 303 int iwl_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
 304                     const struct ieee80211_tx_queue_params *params);
 305 void iwl_set_rxon_hwcrypto(struct iwl_priv *priv, int hw_decrypt);
 306 int iwl_check_rxon_cmd(struct iwl_priv *priv);
 307 int iwl_full_rxon_required(struct iwl_priv *priv);
 308 void iwl_set_rxon_chain(struct iwl_priv *priv);
 309 int iwl_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch);
 310 void iwl_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf);
 311 u8 iwl_is_ht40_tx_allowed(struct iwl_priv *priv,
 312                          struct ieee80211_sta_ht_cap *sta_ht_inf);
 313 void iwl_set_flags_for_band(struct iwl_priv *priv, enum ieee80211_band band);
 314 void iwl_connection_init_rx_config(struct iwl_priv *priv, int mode);
 315 int iwl_set_decrypted_flag(struct iwl_priv *priv,
 316                            struct ieee80211_hdr *hdr,
 317                            u32 decrypt_res,
 318                            struct ieee80211_rx_status *stats);
 319 void iwl_irq_handle_error(struct iwl_priv *priv);
 320 void iwl_configure_filter(struct ieee80211_hw *hw,
 321                           unsigned int changed_flags,
 322                           unsigned int *total_flags, u64 multicast);
 323 int iwl_hw_nic_init(struct iwl_priv *priv);
 324 int iwl_set_hw_params(struct iwl_priv *priv);
 325 bool iwl_is_monitor_mode(struct iwl_priv *priv);
 326 void iwl_post_associate(struct iwl_priv *priv);
 327 void iwl_bss_info_changed(struct ieee80211_hw *hw,
 328                                      struct ieee80211_vif *vif,
 329                                      struct ieee80211_bss_conf *bss_conf,
 330                                      u32 changes);
 331 int iwl_mac_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb);
 332 int iwl_commit_rxon(struct iwl_priv *priv);
 333 int iwl_set_mode(struct iwl_priv *priv, int mode);
 334 int iwl_mac_add_interface(struct ieee80211_hw *hw,
 335                                  struct ieee80211_if_init_conf *conf);
 336 void iwl_mac_remove_interface(struct ieee80211_hw *hw,
 337                                  struct ieee80211_if_init_conf *conf);
 338 int iwl_mac_config(struct ieee80211_hw *hw, u32 changed);
 339 void iwl_config_ap(struct iwl_priv *priv);
 340 int iwl_mac_get_tx_stats(struct ieee80211_hw *hw,
 341                          struct ieee80211_tx_queue_stats *stats);
 342 void iwl_mac_reset_tsf(struct ieee80211_hw *hw);
 343 int iwl_alloc_txq_mem(struct iwl_priv *priv);
 344 void iwl_free_txq_mem(struct iwl_priv *priv);
 345 void iwlcore_rts_tx_cmd_flag(struct ieee80211_tx_info *info,
 346                                 __le32 *tx_flags);
 347 int iwl_send_wimax_coex(struct iwl_priv *priv);
 348 #ifdef CONFIG_IWLWIFI_DEBUGFS
 349 int iwl_alloc_traffic_mem(struct iwl_priv *priv);
 350 void iwl_free_traffic_mem(struct iwl_priv *priv);
 351 void iwl_reset_traffic_log(struct iwl_priv *priv);
 352 void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
 353                                 u16 length, struct ieee80211_hdr *header);
 354 void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
 355                                 u16 length, struct ieee80211_hdr *header);
 356 const char *get_mgmt_string(int cmd);
 357 const char *get_ctrl_string(int cmd);
 358 void iwl_clear_traffic_stats(struct iwl_priv *priv);
 359 void iwl_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc,
 360                       u16 len);
 361 #else
 362 static inline int iwl_alloc_traffic_mem(struct iwl_priv *priv)
 363 {
 364         return 0;
 365 }
 366 static inline void iwl_free_traffic_mem(struct iwl_priv *priv)
 367 {
 368 }
 369 static inline void iwl_reset_traffic_log(struct iwl_priv *priv)
 370 {
 371 }
 372 static inline void iwl_dbg_log_tx_data_frame(struct iwl_priv *priv,
 373                       u16 length, struct ieee80211_hdr *header)
 374 {
 375 }
 376 static inline void iwl_dbg_log_rx_data_frame(struct iwl_priv *priv,
 377                       u16 length, struct ieee80211_hdr *header)
 378 {
 379 }
 380 static inline void iwl_update_stats(struct iwl_priv *priv, bool is_tx,
 381                                     __le16 fc, u16 len)
 382 {
 383         struct traffic_stats    *stats;
 384
 385         if (is_tx)
 386                 stats = &priv->tx_stats;
 387         else
 388                 stats = &priv->rx_stats;
 389
 390         if (ieee80211_is_data(fc)) {
 391                 /* data */
 392                 stats->data_bytes += len;
 393         }
 394         iwl_leds_background(priv);
 395 }
 396 #endif
 397 /*****************************************************
 398  * RX handlers.
 399  * **************************************************/
 400 void iwl_rx_pm_sleep_notif(struct iwl_priv *priv,
 401                            struct iwl_rx_mem_buffer *rxb);
 402 void iwl_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
 403                                       struct iwl_rx_mem_buffer *rxb);
 404 void iwl_rx_reply_error(struct iwl_priv *priv,
 405                         struct iwl_rx_mem_buffer *rxb);
 406
 407 /*****************************************************
 408 * RX
 409 ******************************************************/
 410 void iwl_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
 411 void iwl_cmd_queue_free(struct iwl_priv *priv);
 412 int iwl_rx_queue_alloc(struct iwl_priv *priv);
 413 void iwl_rx_handle(struct iwl_priv *priv);
 414 int iwl_rx_queue_update_write_ptr(struct iwl_priv *priv,
 415                                   struct iwl_rx_queue *q);
 416 void iwl_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
 417 void iwl_rx_replenish(struct iwl_priv *priv);
 418 void iwl_rx_replenish_now(struct iwl_priv *priv);
 419 int iwl_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
 420 int iwl_rx_queue_restock(struct iwl_priv *priv);
 421 int iwl_rx_queue_space(const struct iwl_rx_queue *q);
 422 void iwl_rx_allocate(struct iwl_priv *priv, gfp_t priority);
 423 void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
 424 int iwl_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index);
 425 /* Handlers */
 426 void iwl_rx_missed_beacon_notif(struct iwl_priv *priv,
 427                                struct iwl_rx_mem_buffer *rxb);
 428 void iwl_rx_statistics(struct iwl_priv *priv,
 429                               struct iwl_rx_mem_buffer *rxb);
 430 void iwl_reply_statistics(struct iwl_priv *priv,
 431                           struct iwl_rx_mem_buffer *rxb);
 432 void iwl_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
 433
 434 /* TX helpers */
 435
 436 /*****************************************************
 437 * TX
 438 ******************************************************/
 439 int iwl_txq_ctx_reset(struct iwl_priv *priv);
 440 void iwl_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq);
 441 int iwl_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv,
 442                                  struct iwl_tx_queue *txq,
 443                                  dma_addr_t addr, u16 len, u8 reset, u8 pad);
 444 int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb);
 445 void iwl_hw_txq_ctx_free(struct iwl_priv *priv);
 446 int iwl_hw_tx_queue_init(struct iwl_priv *priv,
 447                          struct iwl_tx_queue *txq);
 448 int iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq);
 449 int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
 450                       int slots_num, u32 txq_id);
 451 void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id);
 452 int iwl_tx_agg_start(struct iwl_priv *priv, const u8 *ra, u16 tid, u16 *ssn);
 453 int iwl_tx_agg_stop(struct iwl_priv *priv , const u8 *ra, u16 tid);
 454 int iwl_txq_check_empty(struct iwl_priv *priv, int sta_id, u8 tid, int txq_id);
 455 /*****************************************************
 456  * TX power
 457  ****************************************************/
 458 int iwl_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force);
 459
 460 /*******************************************************************************
 461  * Rate
 462  ******************************************************************************/
 463
 464 void iwl_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags,
 465                               struct ieee80211_tx_info *info);
 466 int iwl_hwrate_to_plcp_idx(u32 rate_n_flags);
 467 int iwl_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band);
 468
 469 u8 iwl_rate_get_lowest_plcp(struct iwl_priv *priv);
 470
 471 u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant_idx);
 472
 473 static inline u32 iwl_ant_idx_to_flags(u8 ant_idx)
 474 {
 475         return BIT(ant_idx) << RATE_MCS_ANT_POS;
 476 }
 477
 478 static inline u8 iwl_hw_get_rate(__le32 rate_n_flags)
 479 {
 480         return le32_to_cpu(rate_n_flags) & 0xFF;
 481 }
 482 static inline u32 iwl_hw_get_rate_n_flags(__le32 rate_n_flags)
 483 {
 484         return le32_to_cpu(rate_n_flags) & 0x1FFFF;
 485 }
 486 static inline __le32 iwl_hw_set_rate_n_flags(u8 rate, u32 flags)
 487 {
 488         return cpu_to_le32(flags|(u32)rate);
 489 }
 490
 491 /*******************************************************************************
 492  * Scanning
 493  ******************************************************************************/
 494 void iwl_init_scan_params(struct iwl_priv *priv);
 495 int iwl_scan_cancel(struct iwl_priv *priv);
 496 int iwl_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms);
 497 int iwl_mac_hw_scan(struct ieee80211_hw *hw, struct cfg80211_scan_request *req);
 498 u16 iwl_fill_probe_req(struct iwl_priv *priv, struct ieee80211_mgmt *frame,
 499                        const u8 *ie, int ie_len, int left);
 500 void iwl_setup_rx_scan_handlers(struct iwl_priv *priv);
 501 u16 iwl_get_active_dwell_time(struct iwl_priv *priv,
 502                               enum ieee80211_band band,
 503                               u8 n_probes);
 504 u16 iwl_get_passive_dwell_time(struct iwl_priv *priv,
 505                                enum ieee80211_band band);
 506 void iwl_bg_scan_check(struct work_struct *data);
 507 void iwl_bg_abort_scan(struct work_struct *work);
 508 void iwl_bg_scan_completed(struct work_struct *work);
 509 void iwl_setup_scan_deferred_work(struct iwl_priv *priv);
 510
 511 /* For faster active scanning, scan will move to the next channel if fewer than
 512  * PLCP_QUIET_THRESH packets are heard on this channel within
 513  * ACTIVE_QUIET_TIME after sending probe request.  This shortens the dwell
 514  * time if it's a quiet channel (nothing responded to our probe, and there's
 515  * no other traffic).
 516  * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
 517 #define IWL_ACTIVE_QUIET_TIME       cpu_to_le16(10)  /* msec */
 518 #define IWL_PLCP_QUIET_THRESH       cpu_to_le16(1)  /* packets */
 519
 520
 521 /*******************************************************************************
 522  * Calibrations - implemented in iwl-calib.c
 523  ******************************************************************************/
 524 int iwl_send_calib_results(struct iwl_priv *priv);
 525 int iwl_calib_set(struct iwl_calib_result *res, const u8 *buf, int len);
 526 void iwl_calib_free_results(struct iwl_priv *priv);
 527
 528 /*******************************************************************************
 529  * Spectrum Measureemtns in  iwl-spectrum.c
 530  ******************************************************************************/
 531 #ifdef CONFIG_IWLWIFI_SPECTRUM_MEASUREMENT
 532 void iwl_setup_spectrum_handlers(struct iwl_priv *priv);
 533 #else
 534 static inline void iwl_setup_spectrum_handlers(struct iwl_priv *priv) {}
 535 #endif
 536 /*****************************************************
 537  *   S e n d i n g     H o s t     C o m m a n d s   *
 538  *****************************************************/
 539
 540 const char *get_cmd_string(u8 cmd);
 541 int __must_check iwl_send_cmd_sync(struct iwl_priv *priv,
 542                                    struct iwl_host_cmd *cmd);
 543 int iwl_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 544 int __must_check iwl_send_cmd_pdu(struct iwl_priv *priv, u8 id,
 545                                   u16 len, const void *data);
 546 int iwl_send_cmd_pdu_async(struct iwl_priv *priv, u8 id, u16 len,
 547                            const void *data,
 548                            void (*callback)(struct iwl_priv *priv,
 549                                             struct iwl_device_cmd *cmd,
 550                                             struct iwl_rx_packet *pkt));
 551
 552 int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 553
 554 int iwl_send_card_state(struct iwl_priv *priv, u32 flags,
 555                         u8 meta_flag);
 556
 557 /*****************************************************
 558  * PCI                                               *
 559  *****************************************************/
 560 irqreturn_t iwl_isr_legacy(int irq, void *data);
 561 int iwl_reset_ict(struct iwl_priv *priv);
 562 void iwl_disable_ict(struct iwl_priv *priv);
 563 int iwl_alloc_isr_ict(struct iwl_priv *priv);
 564 void iwl_free_isr_ict(struct iwl_priv *priv);
 565 irqreturn_t iwl_isr_ict(int irq, void *data);
 566
 567 static inline u16 iwl_pcie_link_ctl(struct iwl_priv *priv)
 568 {
 569         int pos;
 570         u16 pci_lnk_ctl;
 571         pos = pci_find_capability(priv->pci_dev, PCI_CAP_ID_EXP);
 572         pci_read_config_word(priv->pci_dev, pos + PCI_EXP_LNKCTL, &pci_lnk_ctl);
 573         return pci_lnk_ctl;
 574 }
 575 #ifdef CONFIG_PM
 576 int iwl_pci_suspend(struct pci_dev *pdev, pm_message_t state);
 577 int iwl_pci_resume(struct pci_dev *pdev);
 578 #endif /* CONFIG_PM */
 579
 580 /*****************************************************
 581 *  Error Handling Debugging
 582 ******************************************************/
 583 void iwl_dump_nic_error_log(struct iwl_priv *priv);
 584 int iwl_dump_nic_event_log(struct iwl_priv *priv,
 585                            bool full_log, char **buf, bool display);
 586 void iwl_dump_csr(struct iwl_priv *priv);
 587 #ifdef CONFIG_IWLWIFI_DEBUG
 588 void iwl_print_rx_config_cmd(struct iwl_priv *priv);
 589 #else
 590 static inline void iwl_print_rx_config_cmd(struct iwl_priv *priv)
 591 {
 592 }
 593 #endif
 594
 595 void iwl_clear_isr_stats(struct iwl_priv *priv);
 596
 597 /*****************************************************
 598 *  GEOS
 599 ******************************************************/
 600 int iwlcore_init_geos(struct iwl_priv *priv);
 601 void iwlcore_free_geos(struct iwl_priv *priv);
 602
 603 /*************** DRIVER STATUS FUNCTIONS   *****/
 604
 605 #define STATUS_HCMD_ACTIVE      0       /* host command in progress */
 606 #define STATUS_HCMD_SYNC_ACTIVE 1       /* sync host command in progress */
 607 #define STATUS_INT_ENABLED      2
 608 #define STATUS_RF_KILL_HW       3
 609 #define STATUS_CT_KILL          4
 610 #define STATUS_INIT             5
 611 #define STATUS_ALIVE            6
 612 #define STATUS_READY            7
 613 #define STATUS_TEMPERATURE      8
 614 #define STATUS_GEO_CONFIGURED   9
 615 #define STATUS_EXIT_PENDING     10
 616 #define STATUS_STATISTICS       12
 617 #define STATUS_SCANNING         13
 618 #define STATUS_SCAN_ABORTING    14
 619 #define STATUS_SCAN_HW          15
 620 #define STATUS_POWER_PMI        16
 621 #define STATUS_FW_ERROR         17
 622 #define STATUS_MODE_PENDING     18
 623
 624
 625 static inline int iwl_is_ready(struct iwl_priv *priv)
 626 {
 627         /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
 628          * set but EXIT_PENDING is not */
 629         return test_bit(STATUS_READY, &priv->status) &&
 630                test_bit(STATUS_GEO_CONFIGURED, &priv->status) &&
 631                !test_bit(STATUS_EXIT_PENDING, &priv->status);
 632 }
 633
 634 static inline int iwl_is_alive(struct iwl_priv *priv)
 635 {
 636         return test_bit(STATUS_ALIVE, &priv->status);
 637 }
 638
 639 static inline int iwl_is_init(struct iwl_priv *priv)
 640 {
 641         return test_bit(STATUS_INIT, &priv->status);
 642 }
 643
 644 static inline int iwl_is_rfkill_hw(struct iwl_priv *priv)
 645 {
 646         return test_bit(STATUS_RF_KILL_HW, &priv->status);
 647 }
 648
 649 static inline int iwl_is_rfkill(struct iwl_priv *priv)
 650 {
 651         return iwl_is_rfkill_hw(priv);
 652 }
 653
 654 static inline int iwl_is_ctkill(struct iwl_priv *priv)
 655 {
 656         return test_bit(STATUS_CT_KILL, &priv->status);
 657 }
 658
 659 static inline int iwl_is_ready_rf(struct iwl_priv *priv)
 660 {
 661
 662         if (iwl_is_rfkill(priv))
 663                 return 0;
 664
 665         return iwl_is_ready(priv);
 666 }
 667
 668 extern void iwl_rf_kill_ct_config(struct iwl_priv *priv);
 669 extern int iwl_send_bt_config(struct iwl_priv *priv);
 670 extern int iwl_send_statistics_request(struct iwl_priv *priv,
 671                                        u8 flags, bool clear);
 672 extern int iwl_verify_ucode(struct iwl_priv *priv);
 673 extern int iwl_send_lq_cmd(struct iwl_priv *priv,
 674                 struct iwl_link_quality_cmd *lq, u8 flags);
 675 extern void iwl_rx_reply_rx(struct iwl_priv *priv,
 676                 struct iwl_rx_mem_buffer *rxb);
 677 extern void iwl_rx_reply_rx_phy(struct iwl_priv *priv,
 678                                     struct iwl_rx_mem_buffer *rxb);
 679 void iwl_rx_reply_compressed_ba(struct iwl_priv *priv,
 680                                            struct iwl_rx_mem_buffer *rxb);
 681 void iwl_apm_stop(struct iwl_priv *priv);
 682 int iwl_apm_stop_master(struct iwl_priv *priv);
 683 int iwl_apm_init(struct iwl_priv *priv);
 684
 685 void iwl_setup_rxon_timing(struct iwl_priv *priv);
 686 static inline int iwl_send_rxon_assoc(struct iwl_priv *priv)
 687 {
 688         return priv->cfg->ops->hcmd->rxon_assoc(priv);
 689 }
 690 static inline int iwlcore_commit_rxon(struct iwl_priv *priv)
 691 {
 692         return priv->cfg->ops->hcmd->commit_rxon(priv);
 693 }
 694 static inline void iwlcore_config_ap(struct iwl_priv *priv)
 695 {
 696         priv->cfg->ops->lib->config_ap(priv);
 697 }
 698 static inline const struct ieee80211_supported_band *iwl_get_hw_mode(
 699                         struct iwl_priv *priv, enum ieee80211_band band)
 700 {
 701         return priv->hw->wiphy->bands[band];
 702 }
 703 #endif /* __iwl_core_h__ */