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