root/drivers/net/wireless/ti/wlcore/scan.h

INCLUDED FROM

   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__ */