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64 #ifndef __fw_api_scan_h__
65 #define __fw_api_scan_h__
69 /* Scan Commands, Responses, Notifications */
71 /* Masks for iwl_scan_channel.type flags */
72 #define SCAN_CHANNEL_TYPE_ACTIVE BIT(0)
73 #define SCAN_CHANNEL_NARROW_BAND BIT(22)
75 /* Max number of IEs for direct SSID scans in a command */
76 #define PROBE_OPTION_MAX 20
79 * struct iwl_scan_channel - entry in REPLY_SCAN_CMD channel table
80 * @channel: band is selected by iwl_scan_cmd "flags" field
81 * @tx_gain: gain for analog radio
82 * @dsp_atten: gain for DSP
83 * @active_dwell: dwell time for active scan in TU, typically 5-50
84 * @passive_dwell: dwell time for passive scan in TU, typically 20-500
85 * @type: type is broken down to these bits:
86 * bit 0: 0 = passive, 1 = active
87 * bits 1-20: SSID direct bit map. If any of these bits is set then
88 * the corresponding SSID IE is transmitted in probe request
89 * (bit i adds IE in position i to the probe request)
90 * bit 22: channel width, 0 = regular, 1 = TGj narrow channel
93 * @iteration_interval:
94 * This struct is used once for each channel in the scan list.
95 * Each channel can independently select:
96 * 1) SSID for directed active scans
97 * 2) Txpower setting (for rate specified within Tx command)
98 * 3) How long to stay on-channel (behavior may be modified by quiet_time,
99 * quiet_plcp_th, good_CRC_th)
101 * To avoid uCode errors, make sure the following are true (see comments
102 * under struct iwl_scan_cmd about max_out_time and quiet_time):
103 * 1) If using passive_dwell (i.e. passive_dwell != 0):
104 * active_dwell <= passive_dwell (< max_out_time if max_out_time != 0)
105 * 2) quiet_time <= active_dwell
106 * 3) If restricting off-channel time (i.e. max_out_time !=0):
107 * passive_dwell < max_out_time
108 * active_dwell < max_out_time
110 struct iwl_scan_channel {
113 __le16 iteration_count;
114 __le32 iteration_interval;
116 __le16 passive_dwell;
117 } __packed; /* SCAN_CHANNEL_CONTROL_API_S_VER_1 */
120 * struct iwl_ssid_ie - directed scan network information element
122 * Up to 20 of these may appear in REPLY_SCAN_CMD,
123 * selected by "type" bit field in struct iwl_scan_channel;
124 * each channel may select different ssids from among the 20 entries.
125 * SSID IEs get transmitted in reverse order of entry.
130 u8 ssid[IEEE80211_MAX_SSID_LEN];
131 } __packed; /* SCAN_DIRECT_SSID_IE_API_S_VER_1 */
134 * iwl_scan_flags - masks for scan command flags
135 *@SCAN_FLAGS_PERIODIC_SCAN:
136 *@SCAN_FLAGS_P2P_PUBLIC_ACTION_FRAME_TX:
137 *@SCAN_FLAGS_DELAYED_SCAN_LOWBAND:
138 *@SCAN_FLAGS_DELAYED_SCAN_HIGHBAND:
139 *@SCAN_FLAGS_FRAGMENTED_SCAN:
140 *@SCAN_FLAGS_PASSIVE2ACTIVE: use active scan on channels that was active
141 * in the past hour, even if they are marked as passive.
143 enum iwl_scan_flags {
144 SCAN_FLAGS_PERIODIC_SCAN = BIT(0),
145 SCAN_FLAGS_P2P_PUBLIC_ACTION_FRAME_TX = BIT(1),
146 SCAN_FLAGS_DELAYED_SCAN_LOWBAND = BIT(2),
147 SCAN_FLAGS_DELAYED_SCAN_HIGHBAND = BIT(3),
148 SCAN_FLAGS_FRAGMENTED_SCAN = BIT(4),
149 SCAN_FLAGS_PASSIVE2ACTIVE = BIT(5),
153 * enum iwl_scan_type - Scan types for scan command
155 * @SCAN_TYPE_BACKGROUND:
157 * @SCAN_TYPE_ROAMING:
159 * @SCAN_TYPE_DISCOVERY:
160 * @SCAN_TYPE_DISCOVERY_FORCED:
163 SCAN_TYPE_FORCED = 0,
164 SCAN_TYPE_BACKGROUND = 1,
166 SCAN_TYPE_ROAMING = 3,
167 SCAN_TYPE_ACTION = 4,
168 SCAN_TYPE_DISCOVERY = 5,
169 SCAN_TYPE_DISCOVERY_FORCED = 6,
170 }; /* SCAN_ACTIVITY_TYPE_E_VER_1 */
173 * Maximal number of channels to scan
174 * it should be equal to:
175 * max(IWL_NUM_CHANNELS, IWL_NUM_CHANNELS_FAMILY_8000)
177 #define MAX_NUM_SCAN_CHANNELS 50
180 * struct iwl_scan_cmd - scan request command
181 * ( SCAN_REQUEST_CMD = 0x80 )
182 * @len: command length in bytes
183 * @scan_flags: scan flags from SCAN_FLAGS_*
184 * @channel_count: num of channels in channel list (1 - MAX_NUM_SCAN_CHANNELS)
185 * @quiet_time: in msecs, dwell this time for active scan on quiet channels
186 * @quiet_plcp_th: quiet PLCP threshold (channel is quiet if less than
187 * this number of packets were received (typically 1)
188 * @passive2active: is auto switching from passive to active during scan allowed
189 * @rxchain_sel_flags: RXON_RX_CHAIN_*
190 * @max_out_time: in TUs, max out of serving channel time
191 * @suspend_time: how long to pause scan when returning to service channel:
192 * bits 0-19: beacon interal in TUs (suspend before executing)
193 * bits 20-23: reserved
194 * bits 24-31: number of beacons (suspend between channels)
195 * @rxon_flags: RXON_FLG_*
196 * @filter_flags: RXON_FILTER_*
197 * @tx_cmd: for active scans (zero for passive), w/o payload,
198 * no RS so specify TX rate
199 * @direct_scan: direct scan SSIDs
200 * @type: one of SCAN_TYPE_*
201 * @repeats: how many time to repeat the scan
203 struct iwl_scan_cmd {
208 __le16 quiet_plcp_th;
209 __le16 passive2active;
210 __le16 rxchain_sel_flags;
213 /* RX_ON_FLAGS_API_S_VER_1 */
216 struct iwl_tx_cmd tx_cmd;
217 struct iwl_ssid_ie direct_scan[PROBE_OPTION_MAX];
222 * Probe request frame, followed by channel list.
224 * Size of probe request frame is specified by byte count in tx_cmd.
225 * Channel list follows immediately after probe request frame.
226 * Number of channels in list is specified by channel_count.
227 * Each channel in list is of type:
229 * struct iwl_scan_channel channels[0];
231 * NOTE: Only one band of channels can be scanned per pass. You
232 * must not mix 2.4GHz channels and 5.2GHz channels, and you must wait
233 * for one scan to complete (i.e. receive SCAN_COMPLETE_NOTIFICATION)
234 * before requesting another scan.
237 } __packed; /* SCAN_REQUEST_FIXED_PART_API_S_VER_5 */
239 /* Response to scan request contains only status with one of these values */
240 #define SCAN_RESPONSE_OK 0x1
241 #define SCAN_RESPONSE_ERROR 0x2
244 * SCAN_ABORT_CMD = 0x81
245 * When scan abort is requested, the command has no fields except the common
246 * header. The response contains only a status with one of these values.
248 #define SCAN_ABORT_POSSIBLE 0x1
249 #define SCAN_ABORT_IGNORED 0x2 /* no pending scans */
251 /* TODO: complete documentation */
252 #define SCAN_OWNER_STATUS 0x1
253 #define MEASURE_OWNER_STATUS 0x2
256 * struct iwl_scan_start_notif - notifies start of scan in the device
257 * ( SCAN_START_NOTIFICATION = 0x82 )
258 * @tsf_low: TSF timer (lower half) in usecs
259 * @tsf_high: TSF timer (higher half) in usecs
260 * @beacon_timer: structured as follows:
261 * bits 0:19 - beacon interval in usecs
262 * bits 20:23 - reserved (0)
263 * bits 24:31 - number of beacons
264 * @channel: which channel is scanned
265 * @band: 0 for 5.2 GHz, 1 for 2.4 GHz
266 * @status: one of *_OWNER_STATUS
268 struct iwl_scan_start_notif {
276 } __packed; /* SCAN_START_NTF_API_S_VER_1 */
278 /* scan results probe_status first bit indicates success */
279 #define SCAN_PROBE_STATUS_OK 0
280 #define SCAN_PROBE_STATUS_TX_FAILED BIT(0)
281 /* error statuses combined with TX_FAILED */
282 #define SCAN_PROBE_STATUS_FAIL_TTL BIT(1)
283 #define SCAN_PROBE_STATUS_FAIL_BT BIT(2)
285 /* How many statistics are gathered for each channel */
286 #define SCAN_RESULTS_STATISTICS 1
289 * enum iwl_scan_complete_status - status codes for scan complete notifications
290 * @SCAN_COMP_STATUS_OK: scan completed successfully
291 * @SCAN_COMP_STATUS_ABORT: scan was aborted by user
292 * @SCAN_COMP_STATUS_ERR_SLEEP: sending null sleep packet failed
293 * @SCAN_COMP_STATUS_ERR_CHAN_TIMEOUT: timeout before channel is ready
294 * @SCAN_COMP_STATUS_ERR_PROBE: sending probe request failed
295 * @SCAN_COMP_STATUS_ERR_WAKEUP: sending null wakeup packet failed
296 * @SCAN_COMP_STATUS_ERR_ANTENNAS: invalid antennas chosen at scan command
297 * @SCAN_COMP_STATUS_ERR_INTERNAL: internal error caused scan abort
298 * @SCAN_COMP_STATUS_ERR_COEX: medium was lost ot WiMax
299 * @SCAN_COMP_STATUS_P2P_ACTION_OK: P2P public action frame TX was successful
301 * @SCAN_COMP_STATUS_ITERATION_END: indicates end of one repeatition the driver
303 * @SCAN_COMP_STATUS_ERR_ALLOC_TE: scan could not allocate time events
305 enum iwl_scan_complete_status {
306 SCAN_COMP_STATUS_OK = 0x1,
307 SCAN_COMP_STATUS_ABORT = 0x2,
308 SCAN_COMP_STATUS_ERR_SLEEP = 0x3,
309 SCAN_COMP_STATUS_ERR_CHAN_TIMEOUT = 0x4,
310 SCAN_COMP_STATUS_ERR_PROBE = 0x5,
311 SCAN_COMP_STATUS_ERR_WAKEUP = 0x6,
312 SCAN_COMP_STATUS_ERR_ANTENNAS = 0x7,
313 SCAN_COMP_STATUS_ERR_INTERNAL = 0x8,
314 SCAN_COMP_STATUS_ERR_COEX = 0x9,
315 SCAN_COMP_STATUS_P2P_ACTION_OK = 0xA,
316 SCAN_COMP_STATUS_ITERATION_END = 0x0B,
317 SCAN_COMP_STATUS_ERR_ALLOC_TE = 0x0C,
321 * struct iwl_scan_results_notif - scan results for one channel
322 * ( SCAN_RESULTS_NOTIFICATION = 0x83 )
323 * @channel: which channel the results are from
324 * @band: 0 for 5.2 GHz, 1 for 2.4 GHz
325 * @probe_status: SCAN_PROBE_STATUS_*, indicates success of probe request
326 * @num_probe_not_sent: # of request that weren't sent due to not enough time
327 * @duration: duration spent in channel, in usecs
328 * @statistics: statistics gathered for this channel
330 struct iwl_scan_results_notif {
334 u8 num_probe_not_sent;
336 __le32 statistics[SCAN_RESULTS_STATISTICS];
337 } __packed; /* SCAN_RESULT_NTF_API_S_VER_2 */
340 * struct iwl_scan_complete_notif - notifies end of scanning (all channels)
341 * ( SCAN_COMPLETE_NOTIFICATION = 0x84 )
342 * @scanned_channels: number of channels scanned (and number of valid results)
343 * @status: one of SCAN_COMP_STATUS_*
344 * @bt_status: BT on/off status
345 * @last_channel: last channel that was scanned
346 * @tsf_low: TSF timer (lower half) in usecs
347 * @tsf_high: TSF timer (higher half) in usecs
348 * @results: all scan results, only "scanned_channels" of them are valid
350 struct iwl_scan_complete_notif {
357 struct iwl_scan_results_notif results[MAX_NUM_SCAN_CHANNELS];
358 } __packed; /* SCAN_COMPLETE_NTF_API_S_VER_2 */
361 #define IWL_MAX_SCAN_CHANNELS 40
362 #define IWL_SCAN_MAX_BLACKLIST_LEN 64
363 #define IWL_SCAN_SHORT_BLACKLIST_LEN 16
364 #define IWL_SCAN_MAX_PROFILES 11
365 #define SCAN_OFFLOAD_PROBE_REQ_SIZE 512
367 /* Default watchdog (in MS) for scheduled scan iteration */
368 #define IWL_SCHED_SCAN_WATCHDOG cpu_to_le16(15000)
370 #define IWL_GOOD_CRC_TH_DEFAULT cpu_to_le16(1)
371 #define CAN_ABORT_STATUS 1
373 #define IWL_FULL_SCAN_MULTIPLIER 5
374 #define IWL_FAST_SCHED_SCAN_ITERATIONS 3
376 enum scan_framework_client {
377 SCAN_CLIENT_SCHED_SCAN = BIT(0),
378 SCAN_CLIENT_NETDETECT = BIT(1),
379 SCAN_CLIENT_ASSET_TRACKING = BIT(2),
383 * struct iwl_scan_offload_cmd - SCAN_REQUEST_FIXED_PART_API_S_VER_6
384 * @scan_flags: see enum iwl_scan_flags
385 * @channel_count: channels in channel list
386 * @quiet_time: dwell time, in milisiconds, on quiet channel
387 * @quiet_plcp_th: quiet channel num of packets threshold
388 * @good_CRC_th: passive to active promotion threshold
389 * @rx_chain: RXON rx chain.
390 * @max_out_time: max TUs to be out of assoceated channel
391 * @suspend_time: pause scan this TUs when returning to service channel
393 * @filter_flags: RXONfilter
394 * @tx_cmd: tx command for active scan; for 2GHz and for 5GHz.
395 * @direct_scan: list of SSIDs for directed active scan
396 * @scan_type: see enum iwl_scan_type.
397 * @rep_count: repetition count for each scheduled scan iteration.
399 struct iwl_scan_offload_cmd {
404 __le16 quiet_plcp_th;
409 /* RX_ON_FLAGS_API_S_VER_1 */
412 struct iwl_tx_cmd tx_cmd[2];
413 /* SCAN_DIRECT_SSID_IE_API_S_VER_1 */
414 struct iwl_ssid_ie direct_scan[PROBE_OPTION_MAX];
419 enum iwl_scan_offload_channel_flags {
420 IWL_SCAN_OFFLOAD_CHANNEL_ACTIVE = BIT(0),
421 IWL_SCAN_OFFLOAD_CHANNEL_NARROW = BIT(22),
422 IWL_SCAN_OFFLOAD_CHANNEL_FULL = BIT(24),
423 IWL_SCAN_OFFLOAD_CHANNEL_PARTIAL = BIT(25),
427 * iwl_scan_channel_cfg - SCAN_CHANNEL_CFG_S
428 * @type: bitmap - see enum iwl_scan_offload_channel_flags.
429 * 0: passive (0) or active (1) scan.
430 * 1-20: directed scan to i'th ssid.
431 * 22: channel width configuation - 1 for narrow.
434 * @channel_number: channel number 1-13 etc.
435 * @iter_count: repetition count for the channel.
436 * @iter_interval: interval between two innteration on one channel.
437 * @dwell_time: entry 0 - active scan, entry 1 - passive scan.
439 struct iwl_scan_channel_cfg {
440 __le32 type[IWL_MAX_SCAN_CHANNELS];
441 __le16 channel_number[IWL_MAX_SCAN_CHANNELS];
442 __le16 iter_count[IWL_MAX_SCAN_CHANNELS];
443 __le32 iter_interval[IWL_MAX_SCAN_CHANNELS];
444 u8 dwell_time[IWL_MAX_SCAN_CHANNELS][2];
448 * iwl_scan_offload_cfg - SCAN_OFFLOAD_CONFIG_API_S
449 * @scan_cmd: scan command fixed part
450 * @channel_cfg: scan channel configuration
451 * @data: probe request frames (one per band)
453 struct iwl_scan_offload_cfg {
454 struct iwl_scan_offload_cmd scan_cmd;
455 struct iwl_scan_channel_cfg channel_cfg;
460 * iwl_scan_offload_blacklist - SCAN_OFFLOAD_BLACKLIST_S
461 * @ssid: MAC address to filter out
462 * @reported_rssi: AP rssi reported to the host
463 * @client_bitmap: clients ignore this entry - enum scan_framework_client
465 struct iwl_scan_offload_blacklist {
471 enum iwl_scan_offload_network_type {
472 IWL_NETWORK_TYPE_BSS = 1,
473 IWL_NETWORK_TYPE_IBSS = 2,
474 IWL_NETWORK_TYPE_ANY = 3,
477 enum iwl_scan_offload_band_selection {
478 IWL_SCAN_OFFLOAD_SELECT_2_4 = 0x4,
479 IWL_SCAN_OFFLOAD_SELECT_5_2 = 0x8,
480 IWL_SCAN_OFFLOAD_SELECT_ANY = 0xc,
484 * iwl_scan_offload_profile - SCAN_OFFLOAD_PROFILE_S
485 * @ssid_index: index to ssid list in fixed part
486 * @unicast_cipher: encryption olgorithm to match - bitmap
487 * @aut_alg: authentication olgorithm to match - bitmap
488 * @network_type: enum iwl_scan_offload_network_type
489 * @band_selection: enum iwl_scan_offload_band_selection
490 * @client_bitmap: clients waiting for match - enum scan_framework_client
492 struct iwl_scan_offload_profile {
503 * iwl_scan_offload_profile_cfg - SCAN_OFFLOAD_PROFILES_CFG_API_S_VER_1
504 * @blaclist: AP list to filter off from scan results
505 * @profiles: profiles to search for match
506 * @blacklist_len: length of blacklist
507 * @num_profiles: num of profiles in the list
508 * @match_notify: clients waiting for match found notification
509 * @pass_match: clients waiting for the results
510 * @active_clients: active clients bitmap - enum scan_framework_client
511 * @any_beacon_notify: clients waiting for match notification without match
513 struct iwl_scan_offload_profile_cfg {
514 struct iwl_scan_offload_profile profiles[IWL_SCAN_MAX_PROFILES];
520 u8 any_beacon_notify;
525 * iwl_scan_offload_schedule - schedule of scan offload
526 * @delay: delay between iterations, in seconds.
527 * @iterations: num of scan iterations
528 * @full_scan_mul: number of partial scans before each full scan
530 struct iwl_scan_offload_schedule {
537 * iwl_scan_offload_flags
539 * IWL_SCAN_OFFLOAD_FLAG_PASS_ALL: pass all results - no filtering.
540 * IWL_SCAN_OFFLOAD_FLAG_CACHED_CHANNEL: add cached channels to partial scan.
541 * IWL_SCAN_OFFLOAD_FLAG_EBS_QUICK_MODE: EBS duration is 100mSec - typical
542 * beacon period. Finding channel activity in this mode is not guaranteed.
543 * IWL_SCAN_OFFLOAD_FLAG_EBS_ACCURATE_MODE: EBS duration is 200mSec.
544 * Assuming beacon period is 100ms finding channel activity is guaranteed.
546 enum iwl_scan_offload_flags {
547 IWL_SCAN_OFFLOAD_FLAG_PASS_ALL = BIT(0),
548 IWL_SCAN_OFFLOAD_FLAG_CACHED_CHANNEL = BIT(2),
549 IWL_SCAN_OFFLOAD_FLAG_EBS_QUICK_MODE = BIT(5),
550 IWL_SCAN_OFFLOAD_FLAG_EBS_ACCURATE_MODE = BIT(6),
554 * iwl_scan_offload_req - scan offload request command
555 * @flags: bitmap - enum iwl_scan_offload_flags.
556 * @watchdog: maximum scan duration in TU.
557 * @delay: delay in seconds before first iteration.
558 * @schedule_line: scan offload schedule, for fast and regular scan.
560 struct iwl_scan_offload_req {
565 struct iwl_scan_offload_schedule schedule_line[2];
568 enum iwl_scan_offload_compleate_status {
569 IWL_SCAN_OFFLOAD_COMPLETED = 1,
570 IWL_SCAN_OFFLOAD_ABORTED = 2,
573 enum iwl_scan_ebs_status {
574 IWL_SCAN_EBS_SUCCESS,
576 IWL_SCAN_EBS_CHAN_NOT_FOUND,
580 * iwl_scan_offload_complete - SCAN_OFFLOAD_COMPLETE_NTF_API_S_VER_1
581 * @last_schedule_line: last schedule line executed (fast or regular)
582 * @last_schedule_iteration: last scan iteration executed before scan abort
583 * @status: enum iwl_scan_offload_compleate_status
584 * @ebs_status: last EBS status, see IWL_SCAN_EBS_*
586 struct iwl_scan_offload_complete {
587 u8 last_schedule_line;
588 u8 last_schedule_iteration;
594 * iwl_sched_scan_results - SCAN_OFFLOAD_MATCH_FOUND_NTF_API_S_VER_1
595 * @ssid_bitmap: SSIDs indexes found in this iteration
596 * @client_bitmap: clients that are active and wait for this notification
598 struct iwl_sched_scan_results {