12 #include "fw/api/scan.h"
25 /* adaptive dwell max budget time [TU] for full scan */
27 /* adaptive dwell max budget time [TU] for directed scan */
35 /* number of scan channels */
46 /* minimal number of 2GHz and 5GHz channels in the regular scan request */
78 	/* For CDB this is low band scan type, for non-CDB - type. */
239 		 * set all scan requests as fast-balance scan  in _iwl_mvm_get_scan_type()
292 	/* require rrm scan whenever the fw supports it */  in iwl_mvm_rrm_scan_needed()
318 	 * scan IEs, however the LMAC scan api contains both 2GHZ and 5GHZ IEs  in iwl_mvm_max_scan_ie_len()
320 	 * is just iwl_mvm_max_scan_ie_fw_cmd_room() / 2. Currently the scan  in iwl_mvm_max_scan_ie_len()
322 	 * bytes for scan IEs, which is clearly not enough. So meanwhile  in iwl_mvm_max_scan_ie_len()
324 	 * issue a scan in unified_scan_lmac and unified_sched_scan_lmac  in iwl_mvm_max_scan_ie_len()
337 		       "Scan offload iteration complete: status=0x%x scanned channels=%d\n",  in iwl_mvm_rx_lmac_scan_iter_complete_notif()
341 		IWL_DEBUG_SCAN(mvm, "Pass all scheduled scan results found\n");  in iwl_mvm_rx_lmac_scan_iter_complete_notif()
350 	IWL_DEBUG_SCAN(mvm, "Scheduled scan results\n");  in iwl_mvm_rx_scan_match_found()
382 	/* scan status must be locked for proper checking */  in iwl_mvm_rx_lmac_scan_complete_notif()
385 	/* We first check if we were stopping a scan, in which case we  in iwl_mvm_rx_lmac_scan_complete_notif()
389 	 * Note that we can have a stopping and a running scan  in iwl_mvm_rx_lmac_scan_complete_notif()
398 		IWL_DEBUG_SCAN(mvm, "Scheduled scan %s, EBS status %s\n",  in iwl_mvm_rx_lmac_scan_complete_notif()
409 		IWL_DEBUG_SCAN(mvm, "Regular scan %s, EBS status %s\n",  in iwl_mvm_rx_lmac_scan_complete_notif()
417 		IWL_DEBUG_SCAN(mvm, "Scheduled scan %s, EBS status %s\n",  in iwl_mvm_rx_lmac_scan_complete_notif()
434 		IWL_DEBUG_SCAN(mvm, "Regular scan %s, EBS status %s (FW)\n",  in iwl_mvm_rx_lmac_scan_complete_notif()
444 			"got scan complete notification but no scan is running\n");  in iwl_mvm_rx_lmac_scan_complete_notif()
494 	/* add SSIDs from scan SSID list */  in iwl_scan_build_ssids()
588 	IWL_DEBUG_SCAN(mvm, "Sending scheduled scan profile config\n");  in iwl_mvm_config_sched_scan_profiles()
603 			       "Sending scheduled scan with filtering, n_match_sets %d\n",  in iwl_mvm_scan_pass_all()
609 	IWL_DEBUG_SCAN(mvm, "Sending Scheduled scan without filtering\n");  in iwl_mvm_scan_pass_all()
629 		 * The scan abort will return 1 for success or  in iwl_mvm_lmac_scan_abort()
631 		 * due to simply not being in an active scan which  in iwl_mvm_lmac_scan_abort()
632 		 * can occur if we send the scan abort before the  in iwl_mvm_lmac_scan_abort()
633 		 * microcode has notified us that a scan is completed.  in iwl_mvm_lmac_scan_abort()
635 		IWL_DEBUG_SCAN(mvm, "SCAN OFFLOAD ABORT ret %d.\n", status);  in iwl_mvm_lmac_scan_abort()
758 	 * Unfortunately, right now the offload scan doesn't support randomising  in iwl_mvm_build_scan_probe()
760 	 * it in the driver. This means that the scan iterations won't really be  in iwl_mvm_build_scan_probe()
856 	 *	3. if only single scan, the single scan EBS API is supported;  in iwl_mvm_scan_use_ebs()
979 	 * If the number of iterations of the last scan plan is set to  in iwl_mvm_scan_lmac()
981 	 * For example, when regular scan is requested the driver sets one scan  in iwl_mvm_scan_lmac()
1213 	 * Check for fragmented scan on LMAC2 - high band.  in iwl_mvm_legacy_config_scan()
1232 	IWL_DEBUG_SCAN(mvm, "Sending UMAC scan config\n");  in iwl_mvm_legacy_config_scan()
1274 	IWL_DEBUG_SCAN(mvm, "Sending UMAC scan config\n");  in iwl_mvm_config_scan()
1763 		 * The optimize the scan time, i.e., reduce the scan dwell time  in iwl_mvm_umac_scan_cfg_channels_v6_6g()
1793 					 * matching SSID, i.e., scan for hidden  in iwl_mvm_umac_scan_cfg_channels_v6_6g()
1839 		 * In the following cases apply passive scan:  in iwl_mvm_umac_scan_cfg_channels_v6_6g()
1840 		 * 1. Non fragmented scan:  in iwl_mvm_umac_scan_cfg_channels_v6_6g()
1849 		 * 3. Fragmented scan:  in iwl_mvm_umac_scan_cfg_channels_v6_6g()
1892 	/* set fragmented ebs for fragmented scan on HB channels */  in iwl_mvm_scan_umac_chan_flags_v2()
1915 			       "6GHz passive scan: Not supported by FW\n");  in iwl_mvm_scan_6ghz_passive_scan()
1919 	/* 6GHz passive scan allowed only on station interface  */  in iwl_mvm_scan_6ghz_passive_scan()
1922 			       "6GHz passive scan: not station interface\n");  in iwl_mvm_scan_6ghz_passive_scan()
1927 	 * 6GHz passive scan is allowed while associated in a defined time  in iwl_mvm_scan_6ghz_passive_scan()
1934 		IWL_DEBUG_SCAN(mvm, "6GHz passive scan: associated\n");  in iwl_mvm_scan_6ghz_passive_scan()
1938 	/* No need for 6GHz passive scan if not enough time elapsed */  in iwl_mvm_scan_6ghz_passive_scan()
1942 			       "6GHz passive scan: timeout did not expire\n");  in iwl_mvm_scan_6ghz_passive_scan()
1946 	/* not enough channels in the regular scan request */  in iwl_mvm_scan_6ghz_passive_scan()
1949 			       "6GHz passive scan: not enough channels\n");  in iwl_mvm_scan_6ghz_passive_scan()
1958 	/* not a wildcard scan, so cannot enable passive 6GHz scan */  in iwl_mvm_scan_6ghz_passive_scan()
1961 			       "6GHz passive scan: no wildcard SSID\n");  in iwl_mvm_scan_6ghz_passive_scan()
1967 			       "6GHz passive scan: no 6GHz channels\n");  in iwl_mvm_scan_6ghz_passive_scan()
1978 	 * scan  in iwl_mvm_scan_6ghz_passive_scan()
1982 			       "6GHz passive scan: 6GHz channels enabled\n");  in iwl_mvm_scan_6ghz_passive_scan()
1986 	/* all conditions to enable 6ghz passive scan are satisfied */  in iwl_mvm_scan_6ghz_passive_scan()
1987 	IWL_DEBUG_SCAN(mvm, "6GHz passive scan: can be enabled\n");  in iwl_mvm_scan_6ghz_passive_scan()
2084 	 * only scan type on low band also for CDB.  in iwl_mvm_scan_umac_flags()
2133 	 * If the number of iterations of the last scan plan is set to  in iwl_mvm_fill_scan_sched_params()
2135 	 * For example, when regular scan is requested the driver sets one scan  in iwl_mvm_fill_scan_sched_params()
2196 		/* set fragmented ebs for fragmented scan on HB channels */  in iwl_mvm_scan_umac()
2432 	 * trying to run a scan type that is already running, we  in iwl_mvm_check_running_scans()
2434 	 * different type of scan, we stop the opposite type to make  in iwl_mvm_check_running_scans()
2437 	 * scheduled scan before starting a normal scan.  in iwl_mvm_check_running_scans()
2440 	/* FW supports only a single periodic scan */  in iwl_mvm_check_running_scans()
2473 		 * another scheduled scan while suspended.  in iwl_mvm_check_running_scans()
2481 		/* Something is wrong if no scan was running but we  in iwl_mvm_check_running_scans()
2501 	IWL_ERR(mvm, "regular scan timed out\n");  in iwl_mvm_scan_timeout_wk()
2600 		IWL_ERR(mvm, "scan while LAR regdomain is not set\n");  in iwl_mvm_reg_scan_start()
2653 		/* If the scan failed, it usually means that the FW was unable  in iwl_mvm_reg_scan_start()
2657 		IWL_ERR(mvm, "Scan failed! ret %d\n", ret);  in iwl_mvm_reg_scan_start()
2663 	IWL_DEBUG_SCAN(mvm, "Scan request was sent successfully\n");  in iwl_mvm_reg_scan_start()
2695 		IWL_ERR(mvm, "sched-scan while LAR regdomain is not set\n");  in iwl_mvm_sched_scan_start()
2728 	 * waiting for over 18 hours to start the scan is a bit silly  in iwl_mvm_sched_scan_start()
2790 			       "Sched scan request was sent successfully\n");  in iwl_mvm_sched_scan_start()
2793 		/* If the scan failed, it usually means that the FW was unable  in iwl_mvm_sched_scan_start()
2797 		IWL_ERR(mvm, "Sched scan failed! ret %d\n", ret);  in iwl_mvm_sched_scan_start()
2816 	/* if the scan is already stopping, we don't need to notify mac80211 */  in iwl_mvm_rx_umac_scan_complete_notif()
2835 		       "Scan completed, uid %u type %u, status %s, EBS status %s\n",  in iwl_mvm_rx_umac_scan_complete_notif()
2861 		       "UMAC Scan iteration complete: status=0x%x scanned_channels=%d\n",  in iwl_mvm_rx_umac_scan_iter_complete_notif()
2865 		IWL_DEBUG_SCAN(mvm, "Pass all scheduled scan results found\n");  in iwl_mvm_rx_umac_scan_iter_complete_notif()
2871 		       "UMAC Scan iteration complete: scan started at %llu (TSF)\n",  in iwl_mvm_rx_umac_scan_iter_complete_notif()
2883 	 * checked that this type of scan was running in the generic  in iwl_mvm_umac_scan_abort()
2892 	IWL_DEBUG_SCAN(mvm, "Sending scan abort, uid %u\n", uid);  in iwl_mvm_umac_scan_abort()
2918 	IWL_DEBUG_SCAN(mvm, "Preparing to stop scan, type %x\n", type);  in iwl_mvm_scan_stop_wait()
2926 		IWL_DEBUG_SCAN(mvm, "couldn't stop scan type %d\n", type);  in iwl_mvm_scan_stop_wait()
3009 			/* Sched scan will be restarted by mac80211 in  in iwl_mvm_report_scan_aborted()
3034 				      "UMAC scan UID %d status was not cleaned\n",  in iwl_mvm_report_scan_aborted()
3048 		/* Sched scan will be restarted by mac80211 in  in iwl_mvm_report_scan_aborted()
3076 	/* Clear the scan status so the next scan requests will  in iwl_mvm_scan_stop()
3077 	 * succeed and mark the scan as stopping, so that the Rx  in iwl_mvm_scan_stop()
3078 	 * handler doesn't do anything, as the scan was stopped from  in iwl_mvm_scan_stop()