kernel/drivers/net/wireless/ti/wl12xx/scan.h

   1 /*
   2  * This file is part of wl12xx
   3  *
   4  * Copyright (C) 2012 Texas Instruments. All rights reserved.
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * version 2 as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  18  * 02110-1301 USA
  19  *
  20  */
  21
  22 #ifndef __WL12XX_SCAN_H__
  23 #define __WL12XX_SCAN_H__
  24
  25 #include "../wlcore/wlcore.h"
  26 #include "../wlcore/cmd.h"
  27 #include "../wlcore/scan.h"
  28
  29 #define WL12XX_MAX_CHANNELS_5GHZ 23
  30
  31 struct basic_scan_params {
  32         /* Scan option flags (WL1271_SCAN_OPT_*) */
  33         __le16 scan_options;
  34         u8 role_id;
  35         /* Number of scan channels in the list (maximum 30) */
  36         u8 n_ch;
  37         /* This field indicates the number of probe requests to send
  38            per channel for an active scan */
  39         u8 n_probe_reqs;
  40         u8 tid_trigger;
  41         u8 ssid_len;
  42         u8 use_ssid_list;
  43
  44         /* Rate bit field for sending the probes */
  45         __le32 tx_rate;
  46
  47         u8 ssid[IEEE80211_MAX_SSID_LEN];
  48         /* Band to scan */
  49         u8 band;
  50
  51         u8 scan_tag;
  52         u8 padding2[2];
  53 } __packed;
  54
  55 struct basic_scan_channel_params {
  56         /* Duration in TU to wait for frames on a channel for active scan */
  57         __le32 min_duration;
  58         __le32 max_duration;
  59         __le32 bssid_lsb;
  60         __le16 bssid_msb;
  61         u8 early_termination;
  62         u8 tx_power_att;
  63         u8 channel;
  64         /* FW internal use only! */
  65         u8 dfs_candidate;
  66         u8 activity_detected;
  67         u8 pad;
  68 } __packed;
  69
  70 struct wl1271_cmd_scan {
  71         struct wl1271_cmd_header header;
  72
  73         struct basic_scan_params params;
  74         struct basic_scan_channel_params channels[WL1271_SCAN_MAX_CHANNELS];
  75
  76         /* src mac address */
  77         u8 addr[ETH_ALEN];
  78         u8 padding[2];
  79 } __packed;
  80
  81 struct wl1271_cmd_sched_scan_config {
  82         struct wl1271_cmd_header header;
  83
  84         __le32 intervals[SCAN_MAX_CYCLE_INTERVALS];
  85
  86         s8 rssi_threshold; /* for filtering (in dBm) */
  87         s8 snr_threshold;  /* for filtering (in dB) */
  88
  89         u8 cycles;       /* maximum number of scan cycles */
  90         u8 report_after; /* report when this number of results are received */
  91         u8 terminate;    /* stop scanning after reporting */
  92
  93         u8 tag;
  94         u8 bss_type; /* for filtering */
  95         u8 filter_type;
  96
  97         u8 ssid_len;     /* For SCAN_SSID_FILTER_SPECIFIC */
  98         u8 ssid[IEEE80211_MAX_SSID_LEN];
  99
 100         u8 n_probe_reqs; /* Number of probes requests per channel */
 101
 102         u8 passive[SCAN_MAX_BANDS];
 103         u8 active[SCAN_MAX_BANDS];
 104
 105         u8 dfs;
 106
 107         u8 n_pactive_ch; /* number of pactive (passive until fw detects energy)
 108                             channels in BG band */
 109         u8 role_id;
 110         u8 padding[1];
 111         struct conn_scan_ch_params channels_2[MAX_CHANNELS_2GHZ];
 112         struct conn_scan_ch_params channels_5[WL12XX_MAX_CHANNELS_5GHZ];
 113         struct conn_scan_ch_params channels_4[MAX_CHANNELS_4GHZ];
 114 } __packed;
 115
 116 struct wl1271_cmd_sched_scan_start {
 117         struct wl1271_cmd_header header;
 118
 119         u8 tag;
 120         u8 role_id;
 121         u8 padding[2];
 122 } __packed;
 123
 124 struct wl1271_cmd_sched_scan_stop {
 125         struct wl1271_cmd_header header;
 126
 127         u8 tag;
 128         u8 role_id;
 129         u8 padding[2];
 130 } __packed;
 131
 132 int wl12xx_scan_start(struct wl1271 *wl, struct wl12xx_vif *wlvif,
 133                       struct cfg80211_scan_request *req);
 134 int wl12xx_scan_stop(struct wl1271 *wl, struct wl12xx_vif *wlvif);
 135 void wl12xx_scan_completed(struct wl1271 *wl, struct wl12xx_vif *wlvif);
 136 int wl12xx_sched_scan_start(struct wl1271 *wl, struct wl12xx_vif  *wlvif,
 137                             struct cfg80211_sched_scan_request *req,
 138                             struct ieee80211_scan_ies *ies);
 139 void wl12xx_scan_sched_scan_stop(struct wl1271 *wl,  struct wl12xx_vif *wlvif);
 140 #endif