drivers/net/wireless/iwlwifi/mvm/fw-api-scan.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) 2012 - 2014 Intel Corporation. All rights reserved.
   9  * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of version 2 of the GNU General Public License as
  13  * published by the Free Software Foundation.
  14  *
  15  * This program is distributed in the hope that it will be useful, but
  16  * WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  23  * USA
  24  *
  25  * The full GNU General Public License is included in this distribution
  26  * in the file called COPYING.
  27  *
  28  * Contact Information:
  29  *  Intel Linux Wireless <ilw@linux.intel.com>
  30  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  31  *
  32  * BSD LICENSE
  33  *
  34  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  35  * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
  36  * All rights reserved.
  37  *
  38  * Redistribution and use in source and binary forms, with or without
  39  * modification, are permitted provided that the following conditions
  40  * are met:
  41  *
  42  *  * Redistributions of source code must retain the above copyright
  43  *    notice, this list of conditions and the following disclaimer.
  44  *  * Redistributions in binary form must reproduce the above copyright
  45  *    notice, this list of conditions and the following disclaimer in
  46  *    the documentation and/or other materials provided with the
  47  *    distribution.
  48  *  * Neither the name Intel Corporation nor the names of its
  49  *    contributors may be used to endorse or promote products derived
  50  *    from this software without specific prior written permission.
  51  *
  52  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  53  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  54  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  55  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  56  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  57  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  58  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  59  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  60  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  61  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  62  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  63  *
  64  *****************************************************************************/
  65
  66 #ifndef __fw_api_scan_h__
  67 #define __fw_api_scan_h__
  68
  69 #include "fw-api.h"
  70
  71 /* Scan Commands, Responses, Notifications */
  72
  73 /* Max number of IEs for direct SSID scans in a command */
  74 #define PROBE_OPTION_MAX                20
  75
  76 /**
  77  * struct iwl_ssid_ie - directed scan network information element
  78  *
  79  * Up to 20 of these may appear in REPLY_SCAN_CMD,
  80  * selected by "type" bit field in struct iwl_scan_channel;
  81  * each channel may select different ssids from among the 20 entries.
  82  * SSID IEs get transmitted in reverse order of entry.
  83  */
  84 struct iwl_ssid_ie {
  85         u8 id;
  86         u8 len;
  87         u8 ssid[IEEE80211_MAX_SSID_LEN];
  88 } __packed; /* SCAN_DIRECT_SSID_IE_API_S_VER_1 */
  89
  90 /* How many statistics are gathered for each channel */
  91 #define SCAN_RESULTS_STATISTICS 1
  92
  93 /**
  94  * enum iwl_scan_complete_status - status codes for scan complete notifications
  95  * @SCAN_COMP_STATUS_OK:  scan completed successfully
  96  * @SCAN_COMP_STATUS_ABORT: scan was aborted by user
  97  * @SCAN_COMP_STATUS_ERR_SLEEP: sending null sleep packet failed
  98  * @SCAN_COMP_STATUS_ERR_CHAN_TIMEOUT: timeout before channel is ready
  99  * @SCAN_COMP_STATUS_ERR_PROBE: sending probe request failed
 100  * @SCAN_COMP_STATUS_ERR_WAKEUP: sending null wakeup packet failed
 101  * @SCAN_COMP_STATUS_ERR_ANTENNAS: invalid antennas chosen at scan command
 102  * @SCAN_COMP_STATUS_ERR_INTERNAL: internal error caused scan abort
 103  * @SCAN_COMP_STATUS_ERR_COEX: medium was lost ot WiMax
 104  * @SCAN_COMP_STATUS_P2P_ACTION_OK: P2P public action frame TX was successful
 105  *      (not an error!)
 106  * @SCAN_COMP_STATUS_ITERATION_END: indicates end of one repeatition the driver
 107  *      asked for
 108  * @SCAN_COMP_STATUS_ERR_ALLOC_TE: scan could not allocate time events
 109 */
 110 enum iwl_scan_complete_status {
 111         SCAN_COMP_STATUS_OK = 0x1,
 112         SCAN_COMP_STATUS_ABORT = 0x2,
 113         SCAN_COMP_STATUS_ERR_SLEEP = 0x3,
 114         SCAN_COMP_STATUS_ERR_CHAN_TIMEOUT = 0x4,
 115         SCAN_COMP_STATUS_ERR_PROBE = 0x5,
 116         SCAN_COMP_STATUS_ERR_WAKEUP = 0x6,
 117         SCAN_COMP_STATUS_ERR_ANTENNAS = 0x7,
 118         SCAN_COMP_STATUS_ERR_INTERNAL = 0x8,
 119         SCAN_COMP_STATUS_ERR_COEX = 0x9,
 120         SCAN_COMP_STATUS_P2P_ACTION_OK = 0xA,
 121         SCAN_COMP_STATUS_ITERATION_END = 0x0B,
 122         SCAN_COMP_STATUS_ERR_ALLOC_TE = 0x0C,
 123 };
 124
 125 /**
 126  * struct iwl_scan_results_notif - scan results for one channel
 127  * ( SCAN_RESULTS_NOTIFICATION = 0x83 )
 128  * @channel: which channel the results are from
 129  * @band: 0 for 5.2 GHz, 1 for 2.4 GHz
 130  * @probe_status: SCAN_PROBE_STATUS_*, indicates success of probe request
 131  * @num_probe_not_sent: # of request that weren't sent due to not enough time
 132  * @duration: duration spent in channel, in usecs
 133  * @statistics: statistics gathered for this channel
 134  */
 135 struct iwl_scan_results_notif {
 136         u8 channel;
 137         u8 band;
 138         u8 probe_status;
 139         u8 num_probe_not_sent;
 140         __le32 duration;
 141         __le32 statistics[SCAN_RESULTS_STATISTICS];
 142 } __packed; /* SCAN_RESULT_NTF_API_S_VER_2 */
 143
 144 /**
 145  * struct iwl_scan_complete_notif - notifies end of scanning (all channels)
 146  * ( SCAN_COMPLETE_NOTIFICATION = 0x84 )
 147  * @scanned_channels: number of channels scanned (and number of valid results)
 148  * @status: one of SCAN_COMP_STATUS_*
 149  * @bt_status: BT on/off status
 150  * @last_channel: last channel that was scanned
 151  * @tsf_low: TSF timer (lower half) in usecs
 152  * @tsf_high: TSF timer (higher half) in usecs
 153  * @results: array of scan results, only "scanned_channels" of them are valid
 154  */
 155 struct iwl_scan_complete_notif {
 156         u8 scanned_channels;
 157         u8 status;
 158         u8 bt_status;
 159         u8 last_channel;
 160         __le32 tsf_low;
 161         __le32 tsf_high;
 162         struct iwl_scan_results_notif results[];
 163 } __packed; /* SCAN_COMPLETE_NTF_API_S_VER_2 */
 164
 165 /* scan offload */
 166 #define IWL_SCAN_MAX_BLACKLIST_LEN      64
 167 #define IWL_SCAN_SHORT_BLACKLIST_LEN    16
 168 #define IWL_SCAN_MAX_PROFILES           11
 169 #define SCAN_OFFLOAD_PROBE_REQ_SIZE     512
 170
 171 /* Default watchdog (in MS) for scheduled scan iteration */
 172 #define IWL_SCHED_SCAN_WATCHDOG cpu_to_le16(15000)
 173
 174 #define IWL_GOOD_CRC_TH_DEFAULT cpu_to_le16(1)
 175 #define CAN_ABORT_STATUS 1
 176
 177 #define IWL_FULL_SCAN_MULTIPLIER 5
 178 #define IWL_FAST_SCHED_SCAN_ITERATIONS 3
 179
 180 enum scan_framework_client {
 181         SCAN_CLIENT_SCHED_SCAN          = BIT(0),
 182         SCAN_CLIENT_NETDETECT           = BIT(1),
 183         SCAN_CLIENT_ASSET_TRACKING      = BIT(2),
 184 };
 185
 186 /**
 187  * struct iwl_scan_offload_cmd - SCAN_REQUEST_FIXED_PART_API_S_VER_6
 188  * @scan_flags:         see enum iwl_scan_flags
 189  * @channel_count:      channels in channel list
 190  * @quiet_time:         dwell time, in milisiconds, on quiet channel
 191  * @quiet_plcp_th:      quiet channel num of packets threshold
 192  * @good_CRC_th:        passive to active promotion threshold
 193  * @rx_chain:           RXON rx chain.
 194  * @max_out_time:       max TUs to be out of assoceated channel
 195  * @suspend_time:       pause scan this TUs when returning to service channel
 196  * @flags:              RXON flags
 197  * @filter_flags:       RXONfilter
 198  * @tx_cmd:             tx command for active scan; for 2GHz and for 5GHz.
 199  * @direct_scan:        list of SSIDs for directed active scan
 200  * @scan_type:          see enum iwl_scan_type.
 201  * @rep_count:          repetition count for each scheduled scan iteration.
 202  */
 203 struct iwl_scan_offload_cmd {
 204         __le16 len;
 205         u8 scan_flags;
 206         u8 channel_count;
 207         __le16 quiet_time;
 208         __le16 quiet_plcp_th;
 209         __le16 good_CRC_th;
 210         __le16 rx_chain;
 211         __le32 max_out_time;
 212         __le32 suspend_time;
 213         /* RX_ON_FLAGS_API_S_VER_1 */
 214         __le32 flags;
 215         __le32 filter_flags;
 216         struct iwl_tx_cmd tx_cmd[2];
 217         /* SCAN_DIRECT_SSID_IE_API_S_VER_1 */
 218         struct iwl_ssid_ie direct_scan[PROBE_OPTION_MAX];
 219         __le32 scan_type;
 220         __le32 rep_count;
 221 } __packed;
 222
 223 enum iwl_scan_offload_channel_flags {
 224         IWL_SCAN_OFFLOAD_CHANNEL_ACTIVE         = BIT(0),
 225         IWL_SCAN_OFFLOAD_CHANNEL_NARROW         = BIT(22),
 226         IWL_SCAN_OFFLOAD_CHANNEL_FULL           = BIT(24),
 227         IWL_SCAN_OFFLOAD_CHANNEL_PARTIAL        = BIT(25),
 228 };
 229
 230 /* channel configuration for struct iwl_scan_offload_cfg. Each channels needs:
 231  * __le32 type: bitmap; bits 1-20 are for directed scan to i'th ssid and
 232  *      see enum iwl_scan_offload_channel_flags.
 233  * __le16 channel_number: channel number 1-13 etc.
 234  * __le16 iter_count: repetition count for the channel.
 235  * __le32 iter_interval: interval between two innteration on one channel.
 236  * u8 active_dwell.
 237  * u8 passive_dwell.
 238  */
 239 #define IWL_SCAN_CHAN_SIZE 14
 240
 241 /**
 242  * iwl_scan_offload_cfg - SCAN_OFFLOAD_CONFIG_API_S
 243  * @scan_cmd:           scan command fixed part
 244  * @data:               scan channel configuration and probe request frames
 245  */
 246 struct iwl_scan_offload_cfg {
 247         struct iwl_scan_offload_cmd scan_cmd;
 248         u8 data[0];
 249 } __packed;
 250
 251 /**
 252  * iwl_scan_offload_blacklist - SCAN_OFFLOAD_BLACKLIST_S
 253  * @ssid:               MAC address to filter out
 254  * @reported_rssi:      AP rssi reported to the host
 255  * @client_bitmap: clients ignore this entry  - enum scan_framework_client
 256  */
 257 struct iwl_scan_offload_blacklist {
 258         u8 ssid[ETH_ALEN];
 259         u8 reported_rssi;
 260         u8 client_bitmap;
 261 } __packed;
 262
 263 enum iwl_scan_offload_network_type {
 264         IWL_NETWORK_TYPE_BSS    = 1,
 265         IWL_NETWORK_TYPE_IBSS   = 2,
 266         IWL_NETWORK_TYPE_ANY    = 3,
 267 };
 268
 269 enum iwl_scan_offload_band_selection {
 270         IWL_SCAN_OFFLOAD_SELECT_2_4     = 0x4,
 271         IWL_SCAN_OFFLOAD_SELECT_5_2     = 0x8,
 272         IWL_SCAN_OFFLOAD_SELECT_ANY     = 0xc,
 273 };
 274
 275 /**
 276  * iwl_scan_offload_profile - SCAN_OFFLOAD_PROFILE_S
 277  * @ssid_index:         index to ssid list in fixed part
 278  * @unicast_cipher:     encryption olgorithm to match - bitmap
 279  * @aut_alg:            authentication olgorithm to match - bitmap
 280  * @network_type:       enum iwl_scan_offload_network_type
 281  * @band_selection:     enum iwl_scan_offload_band_selection
 282  * @client_bitmap:      clients waiting for match - enum scan_framework_client
 283  */
 284 struct iwl_scan_offload_profile {
 285         u8 ssid_index;
 286         u8 unicast_cipher;
 287         u8 auth_alg;
 288         u8 network_type;
 289         u8 band_selection;
 290         u8 client_bitmap;
 291         u8 reserved[2];
 292 } __packed;
 293
 294 /**
 295  * iwl_scan_offload_profile_cfg - SCAN_OFFLOAD_PROFILES_CFG_API_S_VER_1
 296  * @blaclist:           AP list to filter off from scan results
 297  * @profiles:           profiles to search for match
 298  * @blacklist_len:      length of blacklist
 299  * @num_profiles:       num of profiles in the list
 300  * @match_notify:       clients waiting for match found notification
 301  * @pass_match:         clients waiting for the results
 302  * @active_clients:     active clients bitmap - enum scan_framework_client
 303  * @any_beacon_notify:  clients waiting for match notification without match
 304  */
 305 struct iwl_scan_offload_profile_cfg {
 306         struct iwl_scan_offload_profile profiles[IWL_SCAN_MAX_PROFILES];
 307         u8 blacklist_len;
 308         u8 num_profiles;
 309         u8 match_notify;
 310         u8 pass_match;
 311         u8 active_clients;
 312         u8 any_beacon_notify;
 313         u8 reserved[2];
 314 } __packed;
 315
 316 /**
 317  * iwl_scan_offload_schedule - schedule of scan offload
 318  * @delay:              delay between iterations, in seconds.
 319  * @iterations:         num of scan iterations
 320  * @full_scan_mul:      number of partial scans before each full scan
 321  */
 322 struct iwl_scan_offload_schedule {
 323         __le16 delay;
 324         u8 iterations;
 325         u8 full_scan_mul;
 326 } __packed;
 327
 328 /*
 329  * iwl_scan_offload_flags
 330  *
 331  * IWL_SCAN_OFFLOAD_FLAG_PASS_ALL: pass all results - no filtering.
 332  * IWL_SCAN_OFFLOAD_FLAG_CACHED_CHANNEL: add cached channels to partial scan.
 333  * IWL_SCAN_OFFLOAD_FLAG_EBS_QUICK_MODE: EBS duration is 100mSec - typical
 334  *      beacon period. Finding channel activity in this mode is not guaranteed.
 335  * IWL_SCAN_OFFLOAD_FLAG_EBS_ACCURATE_MODE: EBS duration is 200mSec.
 336  *      Assuming beacon period is 100ms finding channel activity is guaranteed.
 337  */
 338 enum iwl_scan_offload_flags {
 339         IWL_SCAN_OFFLOAD_FLAG_PASS_ALL          = BIT(0),
 340         IWL_SCAN_OFFLOAD_FLAG_CACHED_CHANNEL    = BIT(2),
 341         IWL_SCAN_OFFLOAD_FLAG_EBS_QUICK_MODE    = BIT(5),
 342         IWL_SCAN_OFFLOAD_FLAG_EBS_ACCURATE_MODE = BIT(6),
 343 };
 344
 345 /**
 346  * iwl_scan_offload_req - scan offload request command
 347  * @flags:              bitmap - enum iwl_scan_offload_flags.
 348  * @watchdog:           maximum scan duration in TU.
 349  * @delay:              delay in seconds before first iteration.
 350  * @schedule_line:      scan offload schedule, for fast and regular scan.
 351  */
 352 struct iwl_scan_offload_req {
 353         __le16 flags;
 354         __le16 watchdog;
 355         __le16 delay;
 356         __le16 reserved;
 357         struct iwl_scan_offload_schedule schedule_line[2];
 358 } __packed;
 359
 360 enum iwl_scan_offload_compleate_status {
 361         IWL_SCAN_OFFLOAD_COMPLETED      = 1,
 362         IWL_SCAN_OFFLOAD_ABORTED        = 2,
 363 };
 364
 365 enum iwl_scan_ebs_status {
 366         IWL_SCAN_EBS_SUCCESS,
 367         IWL_SCAN_EBS_FAILED,
 368         IWL_SCAN_EBS_CHAN_NOT_FOUND,
 369 };
 370
 371 /**
 372  * iwl_scan_offload_complete - SCAN_OFFLOAD_COMPLETE_NTF_API_S_VER_1
 373  * @last_schedule_line:         last schedule line executed (fast or regular)
 374  * @last_schedule_iteration:    last scan iteration executed before scan abort
 375  * @status:                     enum iwl_scan_offload_compleate_status
 376  * @ebs_status: last EBS status, see IWL_SCAN_EBS_*
 377  */
 378 struct iwl_scan_offload_complete {
 379         u8 last_schedule_line;
 380         u8 last_schedule_iteration;
 381         u8 status;
 382         u8 ebs_status;
 383 } __packed;
 384
 385 /**
 386  * iwl_sched_scan_results - SCAN_OFFLOAD_MATCH_FOUND_NTF_API_S_VER_1
 387  * @ssid_bitmap:        SSIDs indexes found in this iteration
 388  * @client_bitmap:      clients that are active and wait for this notification
 389  */
 390 struct iwl_sched_scan_results {
 391         __le16 ssid_bitmap;
 392         u8 client_bitmap;
 393         u8 reserved;
 394 };
 395
 396 /* Unified LMAC scan API */
 397
 398 #define IWL_MVM_BASIC_PASSIVE_DWELL 110
 399
 400 /**
 401  * iwl_scan_req_tx_cmd - SCAN_REQ_TX_CMD_API_S
 402  * @tx_flags: combination of TX_CMD_FLG_*
 403  * @rate_n_flags: rate for *all* Tx attempts, if TX_CMD_FLG_STA_RATE_MSK is
 404  *      cleared. Combination of RATE_MCS_*
 405  * @sta_id: index of destination station in FW station table
 406  * @reserved: for alignment and future use
 407  */
 408 struct iwl_scan_req_tx_cmd {
 409         __le32 tx_flags;
 410         __le32 rate_n_flags;
 411         u8 sta_id;
 412         u8 reserved[3];
 413 } __packed;
 414
 415 enum iwl_scan_channel_flags_lmac {
 416         IWL_UNIFIED_SCAN_CHANNEL_FULL           = BIT(27),
 417         IWL_UNIFIED_SCAN_CHANNEL_PARTIAL        = BIT(28),
 418 };
 419
 420 /**
 421  * iwl_scan_channel_cfg_lmac - SCAN_CHANNEL_CFG_S_VER2
 422  * @flags:              bits 1-20: directed scan to i'th ssid
 423  *                      other bits &enum iwl_scan_channel_flags_lmac
 424  * @channel_number:     channel number 1-13 etc
 425  * @iter_count:         scan iteration on this channel
 426  * @iter_interval:      interval in seconds between iterations on one channel
 427  */
 428 struct iwl_scan_channel_cfg_lmac {
 429         __le32 flags;
 430         __le16 channel_num;
 431         __le16 iter_count;
 432         __le32 iter_interval;
 433 } __packed;
 434
 435 /*
 436  * iwl_scan_probe_segment - PROBE_SEGMENT_API_S_VER_1
 437  * @offset: offset in the data block
 438  * @len: length of the segment
 439  */
 440 struct iwl_scan_probe_segment {
 441         __le16 offset;
 442         __le16 len;
 443 } __packed;
 444
 445 /* iwl_scan_probe_req - PROBE_REQUEST_FRAME_API_S_VER_2
 446  * @mac_header: first (and common) part of the probe
 447  * @band_data: band specific data
 448  * @common_data: last (and common) part of the probe
 449  * @buf: raw data block
 450  */
 451 struct iwl_scan_probe_req {
 452         struct iwl_scan_probe_segment mac_header;
 453         struct iwl_scan_probe_segment band_data[2];
 454         struct iwl_scan_probe_segment common_data;
 455         u8 buf[SCAN_OFFLOAD_PROBE_REQ_SIZE];
 456 } __packed;
 457
 458 enum iwl_scan_channel_flags {
 459         IWL_SCAN_CHANNEL_FLAG_EBS               = BIT(0),
 460         IWL_SCAN_CHANNEL_FLAG_EBS_ACCURATE      = BIT(1),
 461         IWL_SCAN_CHANNEL_FLAG_CACHE_ADD         = BIT(2),
 462 };
 463
 464 /* iwl_scan_channel_opt - CHANNEL_OPTIMIZATION_API_S
 465  * @flags: enum iwl_scan_channel_flags
 466  * @non_ebs_ratio: defines the ratio of number of scan iterations where EBS is
 467  *      involved.
 468  *      1 - EBS is disabled.
 469  *      2 - every second scan will be full scan(and so on).
 470  */
 471 struct iwl_scan_channel_opt {
 472         __le16 flags;
 473         __le16 non_ebs_ratio;
 474 } __packed;
 475
 476 /**
 477  * iwl_mvm_lmac_scan_flags
 478  * @IWL_MVM_LMAC_SCAN_FLAG_PASS_ALL: pass all beacons and probe responses
 479  *      without filtering.
 480  * @IWL_MVM_LMAC_SCAN_FLAG_PASSIVE: force passive scan on all channels
 481  * @IWL_MVM_LMAC_SCAN_FLAG_PRE_CONNECTION: single channel scan
 482  * @IWL_MVM_LMAC_SCAN_FLAG_ITER_COMPLETE: send iteration complete notification
 483  * @IWL_MVM_LMAC_SCAN_FLAG_MULTIPLE_SSIDS multiple SSID matching
 484  * @IWL_MVM_LMAC_SCAN_FLAG_FRAGMENTED: all passive scans will be fragmented
 485  * @IWL_MVM_LMAC_SCAN_FLAGS_RRM_ENABLED: insert WFA vendor-specific TPC report
 486  *      and DS parameter set IEs into probe requests.
 487  * @IWL_MVM_LMAC_SCAN_FLAG_MATCH: Send match found notification on matches
 488  */
 489 enum iwl_mvm_lmac_scan_flags {
 490         IWL_MVM_LMAC_SCAN_FLAG_PASS_ALL         = BIT(0),
 491         IWL_MVM_LMAC_SCAN_FLAG_PASSIVE          = BIT(1),
 492         IWL_MVM_LMAC_SCAN_FLAG_PRE_CONNECTION   = BIT(2),
 493         IWL_MVM_LMAC_SCAN_FLAG_ITER_COMPLETE    = BIT(3),
 494         IWL_MVM_LMAC_SCAN_FLAG_MULTIPLE_SSIDS   = BIT(4),
 495         IWL_MVM_LMAC_SCAN_FLAG_FRAGMENTED       = BIT(5),
 496         IWL_MVM_LMAC_SCAN_FLAGS_RRM_ENABLED     = BIT(6),
 497         IWL_MVM_LMAC_SCAN_FLAG_MATCH            = BIT(9),
 498 };
 499
 500 enum iwl_scan_priority {
 501         IWL_SCAN_PRIORITY_LOW,
 502         IWL_SCAN_PRIORITY_MEDIUM,
 503         IWL_SCAN_PRIORITY_HIGH,
 504 };
 505
 506 /**
 507  * iwl_scan_req_unified_lmac - SCAN_REQUEST_CMD_API_S_VER_1
 508  * @reserved1: for alignment and future use
 509  * @channel_num: num of channels to scan
 510  * @active-dwell: dwell time for active channels
 511  * @passive-dwell: dwell time for passive channels
 512  * @fragmented-dwell: dwell time for fragmented passive scan
 513  * @reserved2: for alignment and future use
 514  * @rx_chain_selct: PHY_RX_CHAIN_* flags
 515  * @scan_flags: &enum iwl_mvm_lmac_scan_flags
 516  * @max_out_time: max time (in TU) to be out of associated channel
 517  * @suspend_time: pause scan this long (TUs) when returning to service channel
 518  * @flags: RXON flags
 519  * @filter_flags: RXON filter
 520  * @tx_cmd: tx command for active scan; for 2GHz and for 5GHz
 521  * @direct_scan: list of SSIDs for directed active scan
 522  * @scan_prio: enum iwl_scan_priority
 523  * @iter_num: number of scan iterations
 524  * @delay: delay in seconds before first iteration
 525  * @schedule: two scheduling plans. The first one is finite, the second one can
 526  *      be infinite.
 527  * @channel_opt: channel optimization options, for full and partial scan
 528  * @data: channel configuration and probe request packet.
 529  */
 530 struct iwl_scan_req_unified_lmac {
 531         /* SCAN_REQUEST_FIXED_PART_API_S_VER_7 */
 532         __le32 reserved1;
 533         u8 n_channels;
 534         u8 active_dwell;
 535         u8 passive_dwell;
 536         u8 fragmented_dwell;
 537         __le16 reserved2;
 538         __le16 rx_chain_select;
 539         __le32 scan_flags;
 540         __le32 max_out_time;
 541         __le32 suspend_time;
 542         /* RX_ON_FLAGS_API_S_VER_1 */
 543         __le32 flags;
 544         __le32 filter_flags;
 545         struct iwl_scan_req_tx_cmd tx_cmd[2];
 546         struct iwl_ssid_ie direct_scan[PROBE_OPTION_MAX];
 547         __le32 scan_prio;
 548         /* SCAN_REQ_PERIODIC_PARAMS_API_S */
 549         __le32 iter_num;
 550         __le32 delay;
 551         struct iwl_scan_offload_schedule schedule[2];
 552         struct iwl_scan_channel_opt channel_opt[2];
 553         u8 data[];
 554 } __packed;
 555
 556 /**
 557  * struct iwl_lmac_scan_results_notif - scan results for one channel -
 558  *      SCAN_RESULT_NTF_API_S_VER_3
 559  * @channel: which channel the results are from
 560  * @band: 0 for 5.2 GHz, 1 for 2.4 GHz
 561  * @probe_status: SCAN_PROBE_STATUS_*, indicates success of probe request
 562  * @num_probe_not_sent: # of request that weren't sent due to not enough time
 563  * @duration: duration spent in channel, in usecs
 564  */
 565 struct iwl_lmac_scan_results_notif {
 566         u8 channel;
 567         u8 band;
 568         u8 probe_status;
 569         u8 num_probe_not_sent;
 570         __le32 duration;
 571 } __packed;
 572
 573 /**
 574  * struct iwl_lmac_scan_complete_notif - notifies end of scanning (all channels)
 575  *      SCAN_COMPLETE_NTF_API_S_VER_3
 576  * @scanned_channels: number of channels scanned (and number of valid results)
 577  * @status: one of SCAN_COMP_STATUS_*
 578  * @bt_status: BT on/off status
 579  * @last_channel: last channel that was scanned
 580  * @tsf_low: TSF timer (lower half) in usecs
 581  * @tsf_high: TSF timer (higher half) in usecs
 582  * @results: an array of scan results, only "scanned_channels" of them are valid
 583  */
 584 struct iwl_lmac_scan_complete_notif {
 585         u8 scanned_channels;
 586         u8 status;
 587         u8 bt_status;
 588         u8 last_channel;
 589         __le32 tsf_low;
 590         __le32 tsf_high;
 591         struct iwl_scan_results_notif results[];
 592 } __packed;
 593
 594 /**
 595  * iwl_scan_offload_complete - PERIODIC_SCAN_COMPLETE_NTF_API_S_VER_2
 596  * @last_schedule_line: last schedule line executed (fast or regular)
 597  * @last_schedule_iteration: last scan iteration executed before scan abort
 598  * @status: enum iwl_scan_offload_complete_status
 599  * @ebs_status: EBS success status &enum iwl_scan_ebs_status
 600  * @time_after_last_iter; time in seconds elapsed after last iteration
 601  */
 602 struct iwl_periodic_scan_complete {
 603         u8 last_schedule_line;
 604         u8 last_schedule_iteration;
 605         u8 status;
 606         u8 ebs_status;
 607         __le32 time_after_last_iter;
 608         __le32 reserved;
 609 } __packed;
 610
 611 /* UMAC Scan API */
 612
 613 /**
 614  * struct iwl_mvm_umac_cmd_hdr - Command header for UMAC commands
 615  * @size:       size of the command (not including header)
 616  * @reserved0:  for future use and alignment
 617  * @ver:        API version number
 618  */
 619 struct iwl_mvm_umac_cmd_hdr {
 620         __le16 size;
 621         u8 reserved0;
 622         u8 ver;
 623 } __packed;
 624
 625 #define IWL_MVM_MAX_SIMULTANEOUS_SCANS 8
 626
 627 enum scan_config_flags {
 628         SCAN_CONFIG_FLAG_ACTIVATE                       = BIT(0),
 629         SCAN_CONFIG_FLAG_DEACTIVATE                     = BIT(1),
 630         SCAN_CONFIG_FLAG_FORBID_CHUB_REQS               = BIT(2),
 631         SCAN_CONFIG_FLAG_ALLOW_CHUB_REQS                = BIT(3),
 632         SCAN_CONFIG_FLAG_SET_TX_CHAINS                  = BIT(8),
 633         SCAN_CONFIG_FLAG_SET_RX_CHAINS                  = BIT(9),
 634         SCAN_CONFIG_FLAG_SET_AUX_STA_ID                 = BIT(10),
 635         SCAN_CONFIG_FLAG_SET_ALL_TIMES                  = BIT(11),
 636         SCAN_CONFIG_FLAG_SET_EFFECTIVE_TIMES            = BIT(12),
 637         SCAN_CONFIG_FLAG_SET_CHANNEL_FLAGS              = BIT(13),
 638         SCAN_CONFIG_FLAG_SET_LEGACY_RATES               = BIT(14),
 639         SCAN_CONFIG_FLAG_SET_MAC_ADDR                   = BIT(15),
 640         SCAN_CONFIG_FLAG_SET_FRAGMENTED                 = BIT(16),
 641         SCAN_CONFIG_FLAG_CLEAR_FRAGMENTED               = BIT(17),
 642         SCAN_CONFIG_FLAG_SET_CAM_MODE                   = BIT(18),
 643         SCAN_CONFIG_FLAG_CLEAR_CAM_MODE                 = BIT(19),
 644         SCAN_CONFIG_FLAG_SET_PROMISC_MODE               = BIT(20),
 645         SCAN_CONFIG_FLAG_CLEAR_PROMISC_MODE             = BIT(21),
 646
 647         /* Bits 26-31 are for num of channels in channel_array */
 648 #define SCAN_CONFIG_N_CHANNELS(n) ((n) << 26)
 649 };
 650
 651 enum scan_config_rates {
 652         /* OFDM basic rates */
 653         SCAN_CONFIG_RATE_6M     = BIT(0),
 654         SCAN_CONFIG_RATE_9M     = BIT(1),
 655         SCAN_CONFIG_RATE_12M    = BIT(2),
 656         SCAN_CONFIG_RATE_18M    = BIT(3),
 657         SCAN_CONFIG_RATE_24M    = BIT(4),
 658         SCAN_CONFIG_RATE_36M    = BIT(5),
 659         SCAN_CONFIG_RATE_48M    = BIT(6),
 660         SCAN_CONFIG_RATE_54M    = BIT(7),
 661         /* CCK basic rates */
 662         SCAN_CONFIG_RATE_1M     = BIT(8),
 663         SCAN_CONFIG_RATE_2M     = BIT(9),
 664         SCAN_CONFIG_RATE_5M     = BIT(10),
 665         SCAN_CONFIG_RATE_11M    = BIT(11),
 666
 667         /* Bits 16-27 are for supported rates */
 668 #define SCAN_CONFIG_SUPPORTED_RATE(rate)        ((rate) << 16)
 669 };
 670
 671 enum iwl_channel_flags {
 672         IWL_CHANNEL_FLAG_EBS                            = BIT(0),
 673         IWL_CHANNEL_FLAG_ACCURATE_EBS                   = BIT(1),
 674         IWL_CHANNEL_FLAG_EBS_ADD                        = BIT(2),
 675         IWL_CHANNEL_FLAG_PRE_SCAN_PASSIVE2ACTIVE        = BIT(3),
 676 };
 677
 678 /**
 679  * struct iwl_scan_config
 680  * @hdr: umac command header
 681  * @flags:                      enum scan_config_flags
 682  * @tx_chains:                  valid_tx antenna - ANT_* definitions
 683  * @rx_chains:                  valid_rx antenna - ANT_* definitions
 684  * @legacy_rates:               default legacy rates - enum scan_config_rates
 685  * @out_of_channel_time:        default max out of serving channel time
 686  * @suspend_time:               default max suspend time
 687  * @dwell_active:               default dwell time for active scan
 688  * @dwell_passive:              default dwell time for passive scan
 689  * @dwell_fragmented:           default dwell time for fragmented scan
 690  * @reserved:                   for future use and alignment
 691  * @mac_addr:                   default mac address to be used in probes
 692  * @bcast_sta_id:               the index of the station in the fw
 693  * @channel_flags:              default channel flags - enum iwl_channel_flags
 694  *                              scan_config_channel_flag
 695  * @channel_array:              default supported channels
 696  */
 697 struct iwl_scan_config {
 698         struct iwl_mvm_umac_cmd_hdr hdr;
 699         __le32 flags;
 700         __le32 tx_chains;
 701         __le32 rx_chains;
 702         __le32 legacy_rates;
 703         __le32 out_of_channel_time;
 704         __le32 suspend_time;
 705         u8 dwell_active;
 706         u8 dwell_passive;
 707         u8 dwell_fragmented;
 708         u8 reserved;
 709         u8 mac_addr[ETH_ALEN];
 710         u8 bcast_sta_id;
 711         u8 channel_flags;
 712         u8 channel_array[];
 713 } __packed; /* SCAN_CONFIG_DB_CMD_API_S */
 714
 715 /**
 716  * iwl_umac_scan_flags
 717  *@IWL_UMAC_SCAN_FLAG_PREEMPTIVE: scan process triggered by this scan request
 718  *      can be preempted by other scan requests with higher priority.
 719  *      The low priority scan is aborted.
 720  *@IWL_UMAC_SCAN_FLAG_START_NOTIF: notification will be sent to the driver
 721  *      when scan starts.
 722  */
 723 enum iwl_umac_scan_flags {
 724         IWL_UMAC_SCAN_FLAG_PREEMPTIVE           = BIT(0),
 725         IWL_UMAC_SCAN_FLAG_START_NOTIF          = BIT(1),
 726 };
 727
 728 enum iwl_umac_scan_uid_offsets {
 729         IWL_UMAC_SCAN_UID_TYPE_OFFSET           = 0,
 730         IWL_UMAC_SCAN_UID_SEQ_OFFSET            = 8,
 731 };
 732
 733 enum iwl_umac_scan_general_flags {
 734         IWL_UMAC_SCAN_GEN_FLAGS_PERIODIC        = BIT(0),
 735         IWL_UMAC_SCAN_GEN_FLAGS_OVER_BT         = BIT(1),
 736         IWL_UMAC_SCAN_GEN_FLAGS_PASS_ALL        = BIT(2),
 737         IWL_UMAC_SCAN_GEN_FLAGS_PASSIVE         = BIT(3),
 738         IWL_UMAC_SCAN_GEN_FLAGS_PRE_CONNECT     = BIT(4),
 739         IWL_UMAC_SCAN_GEN_FLAGS_ITER_COMPLETE   = BIT(5),
 740         IWL_UMAC_SCAN_GEN_FLAGS_MULTIPLE_SSID   = BIT(6),
 741         IWL_UMAC_SCAN_GEN_FLAGS_FRAGMENTED      = BIT(7),
 742         IWL_UMAC_SCAN_GEN_FLAGS_RRM_ENABLED     = BIT(8),
 743         IWL_UMAC_SCAN_GEN_FLAGS_MATCH           = BIT(9)
 744 };
 745
 746 /**
 747  * struct iwl_scan_channel_cfg_umac
 748  * @flags:              bitmap - 0-19:  directed scan to i'th ssid.
 749  * @channel_num:        channel number 1-13 etc.
 750  * @iter_count:         repetition count for the channel.
 751  * @iter_interval:      interval between two scan interations on one channel.
 752  */
 753 struct iwl_scan_channel_cfg_umac {
 754         __le32 flags;
 755         u8 channel_num;
 756         u8 iter_count;
 757         __le16 iter_interval;
 758 } __packed; /* SCAN_CHANNEL_CFG_S_VER2 */
 759
 760 /**
 761  * struct iwl_scan_umac_schedule
 762  * @interval: interval in seconds between scan iterations
 763  * @iter_count: num of scan iterations for schedule plan, 0xff for infinite loop
 764  * @reserved: for alignment and future use
 765  */
 766 struct iwl_scan_umac_schedule {
 767         __le16 interval;
 768         u8 iter_count;
 769         u8 reserved;
 770 } __packed; /* SCAN_SCHED_PARAM_API_S_VER_1 */
 771
 772 /**
 773  * struct iwl_scan_req_umac_tail - the rest of the UMAC scan request command
 774  *      parameters following channels configuration array.
 775  * @schedule: two scheduling plans.
 776  * @delay: delay in TUs before starting the first scan iteration
 777  * @reserved: for future use and alignment
 778  * @preq: probe request with IEs blocks
 779  * @direct_scan: list of SSIDs for directed active scan
 780  */
 781 struct iwl_scan_req_umac_tail {
 782         /* SCAN_PERIODIC_PARAMS_API_S_VER_1 */
 783         struct iwl_scan_umac_schedule schedule[2];
 784         __le16 delay;
 785         __le16 reserved;
 786         /* SCAN_PROBE_PARAMS_API_S_VER_1 */
 787         struct iwl_scan_probe_req preq;
 788         struct iwl_ssid_ie direct_scan[PROBE_OPTION_MAX];
 789 } __packed;
 790
 791 /**
 792  * struct iwl_scan_req_umac
 793  * @hdr: umac command header
 794  * @flags: &enum iwl_umac_scan_flags
 795  * @uid: scan id, &enum iwl_umac_scan_uid_offsets
 796  * @ooc_priority: out of channel priority - &enum iwl_scan_priority
 797  * @general_flags: &enum iwl_umac_scan_general_flags
 798  * @reserved1: for future use and alignment
 799  * @active_dwell: dwell time for active scan
 800  * @passive_dwell: dwell time for passive scan
 801  * @fragmented_dwell: dwell time for fragmented passive scan
 802  * @max_out_time: max out of serving channel time
 803  * @suspend_time: max suspend time
 804  * @scan_priority: scan internal prioritization &enum iwl_scan_priority
 805  * @channel_flags: &enum iwl_scan_channel_flags
 806  * @n_channels: num of channels in scan request
 807  * @reserved2: for future use and alignment
 808  * @data: &struct iwl_scan_channel_cfg_umac and
 809  *      &struct iwl_scan_req_umac_tail
 810  */
 811 struct iwl_scan_req_umac {
 812         struct iwl_mvm_umac_cmd_hdr hdr;
 813         __le32 flags;
 814         __le32 uid;
 815         __le32 ooc_priority;
 816         /* SCAN_GENERAL_PARAMS_API_S_VER_1 */
 817         __le32 general_flags;
 818         u8 reserved1;
 819         u8 active_dwell;
 820         u8 passive_dwell;
 821         u8 fragmented_dwell;
 822         __le32 max_out_time;
 823         __le32 suspend_time;
 824         __le32 scan_priority;
 825         /* SCAN_CHANNEL_PARAMS_API_S_VER_1 */
 826         u8 channel_flags;
 827         u8 n_channels;
 828         __le16 reserved2;
 829         u8 data[];
 830 } __packed; /* SCAN_REQUEST_CMD_UMAC_API_S_VER_1 */
 831
 832 /**
 833  * struct iwl_umac_scan_abort
 834  * @hdr: umac command header
 835  * @uid: scan id, &enum iwl_umac_scan_uid_offsets
 836  * @flags: reserved
 837  */
 838 struct iwl_umac_scan_abort {
 839         struct iwl_mvm_umac_cmd_hdr hdr;
 840         __le32 uid;
 841         __le32 flags;
 842 } __packed; /* SCAN_ABORT_CMD_UMAC_API_S_VER_1 */
 843
 844 /**
 845  * struct iwl_umac_scan_complete
 846  * @uid: scan id, &enum iwl_umac_scan_uid_offsets
 847  * @last_schedule: last scheduling line
 848  * @last_iter:  last scan iteration number
 849  * @scan status: &enum iwl_scan_offload_complete_status
 850  * @ebs_status: &enum iwl_scan_ebs_status
 851  * @time_from_last_iter: time elapsed from last iteration
 852  * @reserved: for future use
 853  */
 854 struct iwl_umac_scan_complete {
 855         __le32 uid;
 856         u8 last_schedule;
 857         u8 last_iter;
 858         u8 status;
 859         u8 ebs_status;
 860         __le32 time_from_last_iter;
 861         __le32 reserved;
 862 } __packed; /* SCAN_COMPLETE_NTF_UMAC_API_S_VER_1 */
 863
 864 #define SCAN_OFFLOAD_MATCHING_CHANNELS_LEN 5
 865 /**
 866  * struct iwl_scan_offload_profile_match - match information
 867  * @bssid: matched bssid
 868  * @channel: channel where the match occurred
 869  * @energy:
 870  * @matching_feature:
 871  * @matching_channels: bitmap of channels that matched, referencing
 872  *      the channels passed in tue scan offload request
 873  */
 874 struct iwl_scan_offload_profile_match {
 875         u8 bssid[ETH_ALEN];
 876         __le16 reserved;
 877         u8 channel;
 878         u8 energy;
 879         u8 matching_feature;
 880         u8 matching_channels[SCAN_OFFLOAD_MATCHING_CHANNELS_LEN];
 881 } __packed; /* SCAN_OFFLOAD_PROFILE_MATCH_RESULTS_S_VER_1 */
 882
 883 /**
 884  * struct iwl_scan_offload_profiles_query - match results query response
 885  * @matched_profiles: bitmap of matched profiles, referencing the
 886  *      matches passed in the scan offload request
 887  * @last_scan_age: age of the last offloaded scan
 888  * @n_scans_done: number of offloaded scans done
 889  * @gp2_d0u: GP2 when D0U occurred
 890  * @gp2_invoked: GP2 when scan offload was invoked
 891  * @resume_while_scanning: not used
 892  * @self_recovery: obsolete
 893  * @reserved: reserved
 894  * @matches: array of match information, one for each match
 895  */
 896 struct iwl_scan_offload_profiles_query {
 897         __le32 matched_profiles;
 898         __le32 last_scan_age;
 899         __le32 n_scans_done;
 900         __le32 gp2_d0u;
 901         __le32 gp2_invoked;
 902         u8 resume_while_scanning;
 903         u8 self_recovery;
 904         __le16 reserved;
 905         struct iwl_scan_offload_profile_match matches[IWL_SCAN_MAX_PROFILES];
 906 } __packed; /* SCAN_OFFLOAD_PROFILES_QUERY_RSP_S_VER_2 */
 907
 908 #endif