drivers/net/wireless/iwlegacy/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 - 2011 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 - 2011 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_legacy_core_h__
  64 #define __iwl_legacy_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) 2003-2011 Intel Corporation"
  75 #define DRV_AUTHOR     "<ilw@linux.intel.com>"
  76
  77 #define IWL_PCI_DEVICE(dev, subdev, cfg) \
  78         .vendor = PCI_VENDOR_ID_INTEL,  .device = (dev), \
  79         .subvendor = PCI_ANY_ID, .subdevice = (subdev), \
  80         .driver_data = (kernel_ulong_t)&(cfg)
  81
  82 #define TIME_UNIT               1024
  83
  84 #define IWL_SKU_G       0x1
  85 #define IWL_SKU_A       0x2
  86 #define IWL_SKU_N       0x8
  87
  88 #define IWL_CMD(x) case x: return #x
  89
  90 struct iwl_hcmd_ops {
  91         int (*rxon_assoc)(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
  92         int (*commit_rxon)(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
  93         void (*set_rxon_chain)(struct iwl_priv *priv,
  94                                struct iwl_rxon_context *ctx);
  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_legacy_addsta_cmd *cmd,
 100                                                                 u8 *data);
 101         int (*request_scan)(struct iwl_priv *priv, struct ieee80211_vif *vif);
 102         void (*post_scan)(struct iwl_priv *priv);
 103 };
 104
 105 struct iwl_apm_ops {
 106         int (*init)(struct iwl_priv *priv);
 107         void (*config)(struct iwl_priv *priv);
 108 };
 109
 110 struct iwl_debugfs_ops {
 111         ssize_t (*rx_stats_read)(struct file *file, char __user *user_buf,
 112                                  size_t count, loff_t *ppos);
 113         ssize_t (*tx_stats_read)(struct file *file, char __user *user_buf,
 114                                  size_t count, loff_t *ppos);
 115         ssize_t (*general_stats_read)(struct file *file, char __user *user_buf,
 116                                       size_t count, loff_t *ppos);
 117 };
 118
 119 struct iwl_temp_ops {
 120         void (*temperature)(struct iwl_priv *priv);
 121 };
 122
 123 struct iwl_lib_ops {
 124         /* set hw dependent parameters */
 125         int (*set_hw_params)(struct iwl_priv *priv);
 126         /* Handling TX */
 127         void (*txq_update_byte_cnt_tbl)(struct iwl_priv *priv,
 128                                         struct iwl_tx_queue *txq,
 129                                         u16 byte_cnt);
 130         int (*txq_attach_buf_to_tfd)(struct iwl_priv *priv,
 131                                      struct iwl_tx_queue *txq,
 132                                      dma_addr_t addr,
 133                                      u16 len, u8 reset, u8 pad);
 134         void (*txq_free_tfd)(struct iwl_priv *priv,
 135                              struct iwl_tx_queue *txq);
 136         int (*txq_init)(struct iwl_priv *priv,
 137                         struct iwl_tx_queue *txq);
 138         /* setup Rx handler */
 139         void (*rx_handler_setup)(struct iwl_priv *priv);
 140         /* alive notification after init uCode load */
 141         void (*init_alive_start)(struct iwl_priv *priv);
 142         /* check validity of rtc data address */
 143         int (*is_valid_rtc_data_addr)(u32 addr);
 144         /* 1st ucode load */
 145         int (*load_ucode)(struct iwl_priv *priv);
 146
 147         void (*dump_nic_error_log)(struct iwl_priv *priv);
 148         int (*dump_fh)(struct iwl_priv *priv, char **buf, bool display);
 149         int (*set_channel_switch)(struct iwl_priv *priv,
 150                                   struct ieee80211_channel_switch *ch_switch);
 151         /* power management */
 152         struct iwl_apm_ops apm_ops;
 153
 154         /* power */
 155         int (*send_tx_power) (struct iwl_priv *priv);
 156         void (*update_chain_flags)(struct iwl_priv *priv);
 157
 158         /* eeprom operations (as defined in iwl-eeprom.h) */
 159         struct iwl_eeprom_ops eeprom_ops;
 160
 161         /* temperature */
 162         struct iwl_temp_ops temp_ops;
 163
 164         struct iwl_debugfs_ops debugfs_ops;
 165
 166 };
 167
 168 struct iwl_led_ops {
 169         int (*cmd)(struct iwl_priv *priv, struct iwl_led_cmd *led_cmd);
 170 };
 171
 172 struct iwl_legacy_ops {
 173         void (*post_associate)(struct iwl_priv *priv);
 174         void (*config_ap)(struct iwl_priv *priv);
 175         /* station management */
 176         int (*update_bcast_stations)(struct iwl_priv *priv);
 177         int (*manage_ibss_station)(struct iwl_priv *priv,
 178                                    struct ieee80211_vif *vif, bool add);
 179 };
 180
 181 struct iwl_ops {
 182         const struct iwl_lib_ops *lib;
 183         const struct iwl_hcmd_ops *hcmd;
 184         const struct iwl_hcmd_utils_ops *utils;
 185         const struct iwl_led_ops *led;
 186         const struct iwl_nic_ops *nic;
 187         const struct iwl_legacy_ops *legacy;
 188         const struct ieee80211_ops *ieee80211_ops;
 189 };
 190
 191 struct iwl_mod_params {
 192         int sw_crypto;          /* def: 0 = using hardware encryption */
 193         int disable_hw_scan;    /* def: 0 = use h/w scan */
 194         int num_of_queues;      /* def: HW dependent */
 195         int disable_11n;        /* def: 0 = 11n capabilities enabled */
 196         int amsdu_size_8K;      /* def: 1 = enable 8K amsdu size */
 197         int antenna;            /* def: 0 = both antennas (use diversity) */
 198         int restart_fw;         /* def: 1 = restart firmware */
 199 };
 200
 201 /*
 202  * @led_compensation: compensate on the led on/off time per HW according
 203  *      to the deviation to achieve the desired led frequency.
 204  *      The detail algorithm is described in iwl-led.c
 205  * @chain_noise_num_beacons: number of beacons used to compute chain noise
 206  * @wd_timeout: TX queues watchdog timeout
 207  * @temperature_kelvin: temperature report by uCode in kelvin
 208  * @ucode_tracing: support ucode continuous tracing
 209  * @sensitivity_calib_by_driver: driver has the capability to perform
 210  *      sensitivity calibration operation
 211  * @chain_noise_calib_by_driver: driver has the capability to perform
 212  *      chain noise calibration operation
 213  */
 214 struct iwl_base_params {
 215         int eeprom_size;
 216         int num_of_queues;      /* def: HW dependent */
 217         int num_of_ampdu_queues;/* def: HW dependent */
 218         /* for iwl_legacy_apm_init() */
 219         u32 pll_cfg_val;
 220         bool set_l0s;
 221         bool use_bsm;
 222
 223         u16 led_compensation;
 224         int chain_noise_num_beacons;
 225         unsigned int wd_timeout;
 226         bool temperature_kelvin;
 227         const bool ucode_tracing;
 228         const bool sensitivity_calib_by_driver;
 229         const bool chain_noise_calib_by_driver;
 230 };
 231
 232 /**
 233  * struct iwl_cfg
 234  * @fw_name_pre: Firmware filename prefix. The api version and extension
 235  *      (.ucode) will be added to filename before loading from disk. The
 236  *      filename is constructed as fw_name_pre<api>.ucode.
 237  * @ucode_api_max: Highest version of uCode API supported by driver.
 238  * @ucode_api_min: Lowest version of uCode API supported by driver.
 239  * @scan_antennas: available antenna for scan operation
 240  * @led_mode: 0=blinking, 1=On(RF On)/Off(RF Off)
 241  *
 242  * We enable the driver to be backward compatible wrt API version. The
 243  * driver specifies which APIs it supports (with @ucode_api_max being the
 244  * highest and @ucode_api_min the lowest). Firmware will only be loaded if
 245  * it has a supported API version. The firmware's API version will be
 246  * stored in @iwl_priv, enabling the driver to make runtime changes based
 247  * on firmware version used.
 248  *
 249  * For example,
 250  * if (IWL_UCODE_API(priv->ucode_ver) >= 2) {
 251  *      Driver interacts with Firmware API version >= 2.
 252  * } else {
 253  *      Driver interacts with Firmware API version 1.
 254  * }
 255  *
 256  * The ideal usage of this infrastructure is to treat a new ucode API
 257  * release as a new hardware revision. That is, through utilizing the
 258  * iwl_hcmd_utils_ops etc. we accommodate different command structures
 259  * and flows between hardware versions as well as their API
 260  * versions.
 261  *
 262  */
 263 struct iwl_cfg {
 264         /* params specific to an individual device within a device family */
 265         const char *name;
 266         const char *fw_name_pre;
 267         const unsigned int ucode_api_max;
 268         const unsigned int ucode_api_min;
 269         u8   valid_tx_ant;
 270         u8   valid_rx_ant;
 271         unsigned int sku;
 272         u16  eeprom_ver;
 273         u16  eeprom_calib_ver;
 274         const struct iwl_ops *ops;
 275         /* module based parameters which can be set from modprobe cmd */
 276         const struct iwl_mod_params *mod_params;
 277         /* params not likely to change within a device family */
 278         struct iwl_base_params *base_params;
 279         /* params likely to change within a device family */
 280         u8 scan_rx_antennas[IEEE80211_NUM_BANDS];
 281         enum iwl_led_mode led_mode;
 282 };
 283
 284 /***************************
 285  *   L i b                 *
 286  ***************************/
 287
 288 struct ieee80211_hw *iwl_legacy_alloc_all(struct iwl_cfg *cfg);
 289 int iwl_legacy_mac_conf_tx(struct ieee80211_hw *hw, u16 queue,
 290                     const struct ieee80211_tx_queue_params *params);
 291 int iwl_legacy_mac_tx_last_beacon(struct ieee80211_hw *hw);
 292 void iwl_legacy_set_rxon_hwcrypto(struct iwl_priv *priv,
 293                         struct iwl_rxon_context *ctx,
 294                         int hw_decrypt);
 295 int iwl_legacy_check_rxon_cmd(struct iwl_priv *priv,
 296                         struct iwl_rxon_context *ctx);
 297 int iwl_legacy_full_rxon_required(struct iwl_priv *priv,
 298                         struct iwl_rxon_context *ctx);
 299 int iwl_legacy_set_rxon_channel(struct iwl_priv *priv,
 300                         struct ieee80211_channel *ch,
 301                         struct iwl_rxon_context *ctx);
 302 void iwl_legacy_set_flags_for_band(struct iwl_priv *priv,
 303                             struct iwl_rxon_context *ctx,
 304                             enum ieee80211_band band,
 305                             struct ieee80211_vif *vif);
 306 u8 iwl_legacy_get_single_channel_number(struct iwl_priv *priv,
 307                                   enum ieee80211_band band);
 308 void iwl_legacy_set_rxon_ht(struct iwl_priv *priv,
 309                         struct iwl_ht_config *ht_conf);
 310 bool iwl_legacy_is_ht40_tx_allowed(struct iwl_priv *priv,
 311                             struct iwl_rxon_context *ctx,
 312                             struct ieee80211_sta_ht_cap *ht_cap);
 313 void iwl_legacy_connection_init_rx_config(struct iwl_priv *priv,
 314                                    struct iwl_rxon_context *ctx);
 315 void iwl_legacy_set_rate(struct iwl_priv *priv);
 316 int iwl_legacy_set_decrypted_flag(struct iwl_priv *priv,
 317                            struct ieee80211_hdr *hdr,
 318                            u32 decrypt_res,
 319                            struct ieee80211_rx_status *stats);
 320 void iwl_legacy_irq_handle_error(struct iwl_priv *priv);
 321 int iwl_legacy_mac_add_interface(struct ieee80211_hw *hw,
 322                           struct ieee80211_vif *vif);
 323 void iwl_legacy_mac_remove_interface(struct ieee80211_hw *hw,
 324                               struct ieee80211_vif *vif);
 325 int iwl_legacy_mac_change_interface(struct ieee80211_hw *hw,
 326                              struct ieee80211_vif *vif,
 327                              enum nl80211_iftype newtype, bool newp2p);
 328 int iwl_legacy_alloc_txq_mem(struct iwl_priv *priv);
 329 void iwl_legacy_txq_mem(struct iwl_priv *priv);
 330
 331 #ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
 332 int iwl_legacy_alloc_traffic_mem(struct iwl_priv *priv);
 333 void iwl_legacy_free_traffic_mem(struct iwl_priv *priv);
 334 void iwl_legacy_reset_traffic_log(struct iwl_priv *priv);
 335 void iwl_legacy_dbg_log_tx_data_frame(struct iwl_priv *priv,
 336                                 u16 length, struct ieee80211_hdr *header);
 337 void iwl_legacy_dbg_log_rx_data_frame(struct iwl_priv *priv,
 338                                 u16 length, struct ieee80211_hdr *header);
 339 const char *iwl_legacy_get_mgmt_string(int cmd);
 340 const char *iwl_legacy_get_ctrl_string(int cmd);
 341 void iwl_legacy_clear_traffic_stats(struct iwl_priv *priv);
 342 void iwl_legacy_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc,
 343                       u16 len);
 344 #else
 345 static inline int iwl_legacy_alloc_traffic_mem(struct iwl_priv *priv)
 346 {
 347         return 0;
 348 }
 349 static inline void iwl_legacy_free_traffic_mem(struct iwl_priv *priv)
 350 {
 351 }
 352 static inline void iwl_legacy_reset_traffic_log(struct iwl_priv *priv)
 353 {
 354 }
 355 static inline void iwl_legacy_dbg_log_tx_data_frame(struct iwl_priv *priv,
 356                       u16 length, struct ieee80211_hdr *header)
 357 {
 358 }
 359 static inline void iwl_legacy_dbg_log_rx_data_frame(struct iwl_priv *priv,
 360                       u16 length, struct ieee80211_hdr *header)
 361 {
 362 }
 363 static inline void iwl_legacy_update_stats(struct iwl_priv *priv, bool is_tx,
 364                                     __le16 fc, u16 len)
 365 {
 366 }
 367 #endif
 368 /*****************************************************
 369  * RX handlers.
 370  * **************************************************/
 371 void iwl_legacy_rx_pm_sleep_notif(struct iwl_priv *priv,
 372                            struct iwl_rx_mem_buffer *rxb);
 373 void iwl_legacy_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
 374                                       struct iwl_rx_mem_buffer *rxb);
 375 void iwl_legacy_rx_reply_error(struct iwl_priv *priv,
 376                         struct iwl_rx_mem_buffer *rxb);
 377
 378 /*****************************************************
 379 * RX
 380 ******************************************************/
 381 void iwl_legacy_cmd_queue_unmap(struct iwl_priv *priv);
 382 void iwl_legacy_cmd_queue_free(struct iwl_priv *priv);
 383 int iwl_legacy_rx_queue_alloc(struct iwl_priv *priv);
 384 void iwl_legacy_rx_queue_update_write_ptr(struct iwl_priv *priv,
 385                                   struct iwl_rx_queue *q);
 386 int iwl_legacy_rx_queue_space(const struct iwl_rx_queue *q);
 387 void iwl_legacy_tx_cmd_complete(struct iwl_priv *priv,
 388                                 struct iwl_rx_mem_buffer *rxb);
 389 /* Handlers */
 390 void iwl_legacy_rx_spectrum_measure_notif(struct iwl_priv *priv,
 391                                           struct iwl_rx_mem_buffer *rxb);
 392 void iwl_legacy_recover_from_statistics(struct iwl_priv *priv,
 393                                 struct iwl_rx_packet *pkt);
 394 void iwl_legacy_chswitch_done(struct iwl_priv *priv, bool is_success);
 395 void iwl_legacy_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
 396
 397 /* TX helpers */
 398
 399 /*****************************************************
 400 * TX
 401 ******************************************************/
 402 void iwl_legacy_txq_update_write_ptr(struct iwl_priv *priv,
 403                                         struct iwl_tx_queue *txq);
 404 int iwl_legacy_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
 405                       int slots_num, u32 txq_id);
 406 void iwl_legacy_tx_queue_reset(struct iwl_priv *priv,
 407                         struct iwl_tx_queue *txq,
 408                         int slots_num, u32 txq_id);
 409 void iwl_legacy_tx_queue_unmap(struct iwl_priv *priv, int txq_id);
 410 void iwl_legacy_tx_queue_free(struct iwl_priv *priv, int txq_id);
 411 void iwl_legacy_setup_watchdog(struct iwl_priv *priv);
 412 /*****************************************************
 413  * TX power
 414  ****************************************************/
 415 int iwl_legacy_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force);
 416
 417 /*******************************************************************************
 418  * Rate
 419  ******************************************************************************/
 420
 421 u8 iwl_legacy_get_lowest_plcp(struct iwl_priv *priv,
 422                             struct iwl_rxon_context *ctx);
 423
 424 /*******************************************************************************
 425  * Scanning
 426  ******************************************************************************/
 427 void iwl_legacy_init_scan_params(struct iwl_priv *priv);
 428 int iwl_legacy_scan_cancel(struct iwl_priv *priv);
 429 int iwl_legacy_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms);
 430 void iwl_legacy_force_scan_end(struct iwl_priv *priv);
 431 int iwl_legacy_mac_hw_scan(struct ieee80211_hw *hw,
 432                     struct ieee80211_vif *vif,
 433                     struct cfg80211_scan_request *req);
 434 void iwl_legacy_internal_short_hw_scan(struct iwl_priv *priv);
 435 int iwl_legacy_force_reset(struct iwl_priv *priv, bool external);
 436 u16 iwl_legacy_fill_probe_req(struct iwl_priv *priv,
 437                         struct ieee80211_mgmt *frame,
 438                        const u8 *ta, const u8 *ie, int ie_len, int left);
 439 void iwl_legacy_setup_rx_scan_handlers(struct iwl_priv *priv);
 440 u16 iwl_legacy_get_active_dwell_time(struct iwl_priv *priv,
 441                               enum ieee80211_band band,
 442                               u8 n_probes);
 443 u16 iwl_legacy_get_passive_dwell_time(struct iwl_priv *priv,
 444                                enum ieee80211_band band,
 445                                struct ieee80211_vif *vif);
 446 void iwl_legacy_setup_scan_deferred_work(struct iwl_priv *priv);
 447 void iwl_legacy_cancel_scan_deferred_work(struct iwl_priv *priv);
 448
 449 /* For faster active scanning, scan will move to the next channel if fewer than
 450  * PLCP_QUIET_THRESH packets are heard on this channel within
 451  * ACTIVE_QUIET_TIME after sending probe request.  This shortens the dwell
 452  * time if it's a quiet channel (nothing responded to our probe, and there's
 453  * no other traffic).
 454  * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
 455 #define IWL_ACTIVE_QUIET_TIME       cpu_to_le16(10)  /* msec */
 456 #define IWL_PLCP_QUIET_THRESH       cpu_to_le16(1)  /* packets */
 457
 458 #define IWL_SCAN_CHECK_WATCHDOG         (HZ * 7)
 459
 460 /*****************************************************
 461  *   S e n d i n g     H o s t     C o m m a n d s   *
 462  *****************************************************/
 463
 464 const char *iwl_legacy_get_cmd_string(u8 cmd);
 465 int __must_check iwl_legacy_send_cmd_sync(struct iwl_priv *priv,
 466                                    struct iwl_host_cmd *cmd);
 467 int iwl_legacy_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 468 int __must_check iwl_legacy_send_cmd_pdu(struct iwl_priv *priv, u8 id,
 469                                   u16 len, const void *data);
 470 int iwl_legacy_send_cmd_pdu_async(struct iwl_priv *priv, u8 id, u16 len,
 471                            const void *data,
 472                            void (*callback)(struct iwl_priv *priv,
 473                                             struct iwl_device_cmd *cmd,
 474                                             struct iwl_rx_packet *pkt));
 475
 476 int iwl_legacy_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
 477
 478
 479 /*****************************************************
 480  * PCI                                               *
 481  *****************************************************/
 482
 483 static inline u16 iwl_legacy_pcie_link_ctl(struct iwl_priv *priv)
 484 {
 485         int pos;
 486         u16 pci_lnk_ctl;
 487         pos = pci_find_capability(priv->pci_dev, PCI_CAP_ID_EXP);
 488         pci_read_config_word(priv->pci_dev, pos + PCI_EXP_LNKCTL, &pci_lnk_ctl);
 489         return pci_lnk_ctl;
 490 }
 491
 492 void iwl_legacy_bg_watchdog(unsigned long data);
 493 u32 iwl_legacy_usecs_to_beacons(struct iwl_priv *priv,
 494                                         u32 usec, u32 beacon_interval);
 495 __le32 iwl_legacy_add_beacon_time(struct iwl_priv *priv, u32 base,
 496                            u32 addon, u32 beacon_interval);
 497
 498 #ifdef CONFIG_PM
 499 int iwl_legacy_pci_suspend(struct device *device);
 500 int iwl_legacy_pci_resume(struct device *device);
 501 extern const struct dev_pm_ops iwl_legacy_pm_ops;
 502
 503 #define IWL_LEGACY_PM_OPS       (&iwl_legacy_pm_ops)
 504
 505 #else /* !CONFIG_PM */
 506
 507 #define IWL_LEGACY_PM_OPS       NULL
 508
 509 #endif /* !CONFIG_PM */
 510
 511 /*****************************************************
 512 *  Error Handling Debugging
 513 ******************************************************/
 514 void iwl4965_dump_nic_error_log(struct iwl_priv *priv);
 515 #ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
 516 void iwl_legacy_print_rx_config_cmd(struct iwl_priv *priv,
 517                              struct iwl_rxon_context *ctx);
 518 #else
 519 static inline void iwl_legacy_print_rx_config_cmd(struct iwl_priv *priv,
 520                                            struct iwl_rxon_context *ctx)
 521 {
 522 }
 523 #endif
 524
 525 void iwl_legacy_clear_isr_stats(struct iwl_priv *priv);
 526
 527 /*****************************************************
 528 *  GEOS
 529 ******************************************************/
 530 int iwl_legacy_init_geos(struct iwl_priv *priv);
 531 void iwl_legacy_free_geos(struct iwl_priv *priv);
 532
 533 /*************** DRIVER STATUS FUNCTIONS   *****/
 534
 535 #define STATUS_HCMD_ACTIVE      0       /* host command in progress */
 536 /* 1 is unused (used to be STATUS_HCMD_SYNC_ACTIVE) */
 537 #define STATUS_INT_ENABLED      2
 538 #define STATUS_RF_KILL_HW       3
 539 #define STATUS_CT_KILL          4
 540 #define STATUS_INIT             5
 541 #define STATUS_ALIVE            6
 542 #define STATUS_READY            7
 543 #define STATUS_TEMPERATURE      8
 544 #define STATUS_GEO_CONFIGURED   9
 545 #define STATUS_EXIT_PENDING     10
 546 #define STATUS_STATISTICS       12
 547 #define STATUS_SCANNING         13
 548 #define STATUS_SCAN_ABORTING    14
 549 #define STATUS_SCAN_HW          15
 550 #define STATUS_POWER_PMI        16
 551 #define STATUS_FW_ERROR         17
 552 #define STATUS_CHANNEL_SWITCH_PENDING 18
 553
 554 static inline int iwl_legacy_is_ready(struct iwl_priv *priv)
 555 {
 556         /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
 557          * set but EXIT_PENDING is not */
 558         return test_bit(STATUS_READY, &priv->status) &&
 559                test_bit(STATUS_GEO_CONFIGURED, &priv->status) &&
 560                !test_bit(STATUS_EXIT_PENDING, &priv->status);
 561 }
 562
 563 static inline int iwl_legacy_is_alive(struct iwl_priv *priv)
 564 {
 565         return test_bit(STATUS_ALIVE, &priv->status);
 566 }
 567
 568 static inline int iwl_legacy_is_init(struct iwl_priv *priv)
 569 {
 570         return test_bit(STATUS_INIT, &priv->status);
 571 }
 572
 573 static inline int iwl_legacy_is_rfkill_hw(struct iwl_priv *priv)
 574 {
 575         return test_bit(STATUS_RF_KILL_HW, &priv->status);
 576 }
 577
 578 static inline int iwl_legacy_is_rfkill(struct iwl_priv *priv)
 579 {
 580         return iwl_legacy_is_rfkill_hw(priv);
 581 }
 582
 583 static inline int iwl_legacy_is_ctkill(struct iwl_priv *priv)
 584 {
 585         return test_bit(STATUS_CT_KILL, &priv->status);
 586 }
 587
 588 static inline int iwl_legacy_is_ready_rf(struct iwl_priv *priv)
 589 {
 590
 591         if (iwl_legacy_is_rfkill(priv))
 592                 return 0;
 593
 594         return iwl_legacy_is_ready(priv);
 595 }
 596
 597 extern void iwl_legacy_send_bt_config(struct iwl_priv *priv);
 598 extern int iwl_legacy_send_statistics_request(struct iwl_priv *priv,
 599                                        u8 flags, bool clear);
 600 void iwl_legacy_apm_stop(struct iwl_priv *priv);
 601 int iwl_legacy_apm_init(struct iwl_priv *priv);
 602
 603 int iwl_legacy_send_rxon_timing(struct iwl_priv *priv,
 604                                 struct iwl_rxon_context *ctx);
 605 static inline int iwl_legacy_send_rxon_assoc(struct iwl_priv *priv,
 606                                       struct iwl_rxon_context *ctx)
 607 {
 608         return priv->cfg->ops->hcmd->rxon_assoc(priv, ctx);
 609 }
 610 static inline int iwl_legacy_commit_rxon(struct iwl_priv *priv,
 611                                       struct iwl_rxon_context *ctx)
 612 {
 613         return priv->cfg->ops->hcmd->commit_rxon(priv, ctx);
 614 }
 615 static inline const struct ieee80211_supported_band *iwl_get_hw_mode(
 616                         struct iwl_priv *priv, enum ieee80211_band band)
 617 {
 618         return priv->hw->wiphy->bands[band];
 619 }
 620
 621 /* mac80211 handlers */
 622 int iwl_legacy_mac_config(struct ieee80211_hw *hw, u32 changed);
 623 void iwl_legacy_mac_reset_tsf(struct ieee80211_hw *hw);
 624 void iwl_legacy_mac_bss_info_changed(struct ieee80211_hw *hw,
 625                                      struct ieee80211_vif *vif,
 626                                      struct ieee80211_bss_conf *bss_conf,
 627                                      u32 changes);
 628 void iwl_legacy_tx_cmd_protection(struct iwl_priv *priv,
 629                                 struct ieee80211_tx_info *info,
 630                                 __le16 fc, __le32 *tx_flags);
 631
 632 irqreturn_t iwl_legacy_isr(int irq, void *data);
 633
 634 #endif /* __iwl_legacy_core_h__ */