1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * This file is part of wl1271 4 * 5 * Copyright (C) 2009-2010 Nokia Corporation 6 * 7 * Contact: Luciano Coelho <luciano.coelho@nokia.com> 8 */ 9 10 #ifndef __SCAN_H__ 11 #define __SCAN_H__ 12 13 #include "wlcore.h" 14 15 int wlcore_scan(struct wl1271 *wl, struct ieee80211_vif *vif, 16 const u8 *ssid, size_t ssid_len, 17 struct cfg80211_scan_request *req); 18 int wl1271_scan_build_probe_req(struct wl1271 *wl, 19 const u8 *ssid, size_t ssid_len, 20 const u8 *ie, size_t ie_len, u8 band); 21 void wl1271_scan_stm(struct wl1271 *wl, struct wl12xx_vif *wlvif); 22 void wl1271_scan_complete_work(struct work_struct *work); 23 int wl1271_scan_sched_scan_config(struct wl1271 *wl, 24 struct wl12xx_vif *wlvif, 25 struct cfg80211_sched_scan_request *req, 26 struct ieee80211_scan_ies *ies); 27 int wl1271_scan_sched_scan_start(struct wl1271 *wl, struct wl12xx_vif *wlvif); 28 void wlcore_scan_sched_scan_results(struct wl1271 *wl); 29 30 #define WL1271_SCAN_MAX_CHANNELS 24 31 #define WL1271_SCAN_DEFAULT_TAG 1 32 #define WL1271_SCAN_CURRENT_TX_PWR 0 33 #define WL1271_SCAN_OPT_ACTIVE 0 34 #define WL1271_SCAN_OPT_PASSIVE 1 35 #define WL1271_SCAN_OPT_SPLIT_SCAN 2 36 #define WL1271_SCAN_OPT_PRIORITY_HIGH 4 37 /* scan even if we fail to enter psm */ 38 #define WL1271_SCAN_OPT_FORCE 8 39 #define WL1271_SCAN_BAND_2_4_GHZ 0 40 #define WL1271_SCAN_BAND_5_GHZ 1 41 42 #define WL1271_SCAN_TIMEOUT 30000 /* msec */ 43 44 enum { 45 WL1271_SCAN_STATE_IDLE, 46 WL1271_SCAN_STATE_2GHZ_ACTIVE, 47 WL1271_SCAN_STATE_2GHZ_PASSIVE, 48 WL1271_SCAN_STATE_5GHZ_ACTIVE, 49 WL1271_SCAN_STATE_5GHZ_PASSIVE, 50 WL1271_SCAN_STATE_DONE 51 }; 52 53 struct wl1271_cmd_trigger_scan_to { 54 struct wl1271_cmd_header header; 55 56 __le32 timeout; 57 } __packed; 58 59 #define MAX_CHANNELS_2GHZ 14 60 #define MAX_CHANNELS_4GHZ 4 61 62 /* 63 * This max value here is used only for the struct definition of 64 * wlcore_scan_channels. This struct is used by both 12xx 65 * and 18xx (which have different max 5ghz channels value). 66 * In order to make sure this is large enough, just use the 67 * max possible 5ghz channels. 68 */ 69 #define MAX_CHANNELS_5GHZ 42 70 71 #define SCAN_MAX_CYCLE_INTERVALS 16 72 73 /* The FW intervals can take up to 16 entries. 74 * The 1st entry isn't used (scan is immediate). The last 75 * entry should be used for the long_interval 76 */ 77 #define SCAN_MAX_SHORT_INTERVALS (SCAN_MAX_CYCLE_INTERVALS - 2) 78 #define SCAN_MAX_BANDS 3 79 80 enum { 81 SCAN_SSID_FILTER_ANY = 0, 82 SCAN_SSID_FILTER_SPECIFIC = 1, 83 SCAN_SSID_FILTER_LIST = 2, 84 SCAN_SSID_FILTER_DISABLED = 3 85 }; 86 87 enum { 88 SCAN_BSS_TYPE_INDEPENDENT, 89 SCAN_BSS_TYPE_INFRASTRUCTURE, 90 SCAN_BSS_TYPE_ANY, 91 }; 92 93 #define SCAN_CHANNEL_FLAGS_DFS BIT(0) /* channel is passive until an 94 activity is detected on it */ 95 #define SCAN_CHANNEL_FLAGS_DFS_ENABLED BIT(1) 96 97 struct conn_scan_ch_params { 98 __le16 min_duration; 99 __le16 max_duration; 100 __le16 passive_duration; 101 102 u8 channel; 103 u8 tx_power_att; 104 105 /* bit 0: DFS channel; bit 1: DFS enabled */ 106 u8 flags; 107 108 u8 padding[3]; 109 } __packed; 110 111 #define SCHED_SCAN_MAX_SSIDS 16 112 113 enum { 114 SCAN_SSID_TYPE_PUBLIC = 0, 115 SCAN_SSID_TYPE_HIDDEN = 1, 116 }; 117 118 struct wl1271_ssid { 119 u8 type; 120 u8 len; 121 u8 ssid[IEEE80211_MAX_SSID_LEN]; 122 /* u8 padding[2]; */ 123 } __packed; 124 125 struct wl1271_cmd_sched_scan_ssid_list { 126 struct wl1271_cmd_header header; 127 128 u8 n_ssids; 129 struct wl1271_ssid ssids[SCHED_SCAN_MAX_SSIDS]; 130 u8 role_id; 131 u8 padding[2]; 132 } __packed; 133 134 struct wlcore_scan_channels { 135 u8 passive[SCAN_MAX_BANDS]; /* number of passive scan channels */ 136 u8 active[SCAN_MAX_BANDS]; /* number of active scan channels */ 137 u8 dfs; /* number of dfs channels in 5ghz */ 138 u8 passive_active; /* number of passive before active channels 2.4ghz */ 139 140 struct conn_scan_ch_params channels_2[MAX_CHANNELS_2GHZ]; 141 struct conn_scan_ch_params channels_5[MAX_CHANNELS_5GHZ]; 142 struct conn_scan_ch_params channels_4[MAX_CHANNELS_4GHZ]; 143 }; 144 145 enum { 146 SCAN_TYPE_SEARCH = 0, 147 SCAN_TYPE_PERIODIC = 1, 148 SCAN_TYPE_TRACKING = 2, 149 }; 150 151 bool 152 wlcore_set_scan_chan_params(struct wl1271 *wl, 153 struct wlcore_scan_channels *cfg, 154 struct ieee80211_channel *channels[], 155 u32 n_channels, 156 u32 n_ssids, 157 int scan_type); 158 159 int 160 wlcore_scan_sched_scan_ssid_list(struct wl1271 *wl, 161 struct wl12xx_vif *wlvif, 162 struct cfg80211_sched_scan_request *req); 163 164 #endif /* __WL1271_SCAN_H__ */ 165