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