kernel/drivers/net/wireless/ti/wl18xx/scan.h

   1 /*
   2  * This file is part of wl18xx
   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 __WL18XX_SCAN_H__
  23 #define __WL18XX_SCAN_H__
  24
  25 #include "../wlcore/wlcore.h"
  26 #include "../wlcore/cmd.h"
  27 #include "../wlcore/scan.h"
  28
  29 struct tracking_ch_params {
  30         struct conn_scan_ch_params channel;
  31
  32         __le32 bssid_lsb;
  33         __le16 bssid_msb;
  34
  35         u8 padding[2];
  36 } __packed;
  37
  38 /* probe request rate */
  39 enum
  40 {
  41         WL18XX_SCAN_RATE_1      = 0,
  42         WL18XX_SCAN_RATE_5_5    = 1,
  43         WL18XX_SCAN_RATE_6      = 2,
  44 };
  45
  46 #define WL18XX_MAX_CHANNELS_5GHZ 32
  47
  48 struct wl18xx_cmd_scan_params {
  49         struct wl1271_cmd_header header;
  50
  51         u8 role_id;
  52         u8 scan_type;
  53
  54         s8 rssi_threshold; /* for filtering (in dBm) */
  55         s8 snr_threshold;  /* for filtering (in dB) */
  56
  57         u8 bss_type;       /* for filtering */
  58         u8 ssid_from_list; /* use ssid from configured ssid list */
  59         u8 filter;         /* forward only results with matching ssids */
  60
  61         /*
  62          * add broadcast ssid in addition to the configured ssids.
  63          * the driver should add dummy entry for it (?).
  64          */
  65         u8 add_broadcast;
  66
  67         u8 urgency;
  68         u8 protect;      /* ??? */
  69         u8 n_probe_reqs;    /* Number of probes requests per channel */
  70         u8 terminate_after; /* early terminate scan operation */
  71
  72         u8 passive[SCAN_MAX_BANDS]; /* number of passive scan channels */
  73         u8 active[SCAN_MAX_BANDS];  /* number of active scan channels */
  74         u8 dfs;            /* number of dfs channels in 5ghz */
  75         u8 passive_active; /* number of passive before active channels 2.4ghz */
  76
  77         __le16 short_cycles_sec;
  78         __le16 long_cycles_sec;
  79         u8 short_cycles_count;
  80         u8 total_cycles; /* 0 - infinite */
  81         u8 padding[2];
  82
  83         union {
  84                 struct {
  85                         struct conn_scan_ch_params channels_2[MAX_CHANNELS_2GHZ];
  86                         struct conn_scan_ch_params channels_5[WL18XX_MAX_CHANNELS_5GHZ];
  87                         struct conn_scan_ch_params channels_4[MAX_CHANNELS_4GHZ];
  88                 };
  89                 struct tracking_ch_params channels_tracking[WL1271_SCAN_MAX_CHANNELS];
  90         } ;
  91
  92         u8 ssid[IEEE80211_MAX_SSID_LEN];
  93         u8 ssid_len;     /* For SCAN_SSID_FILTER_SPECIFIC */
  94         u8 tag;
  95         u8 rate;
  96
  97         /* send SCAN_REPORT_EVENT in periodic scans after each cycle
  98         * if number of results >= report_threshold. Must be 0 for
  99         * non periodic scans
 100         */
 101         u8 report_threshold;
 102
 103         /* Should periodic scan stop after a report event was created.
 104         * Must be 0 for non periodic scans.
 105         */
 106         u8 terminate_on_report;
 107
 108         u8 padding1[3];
 109 } __packed;
 110
 111 struct wl18xx_cmd_scan_stop {
 112         struct wl1271_cmd_header header;
 113
 114         u8 role_id;
 115         u8 scan_type;
 116         u8 padding[2];
 117 } __packed;
 118
 119 int wl18xx_scan_start(struct wl1271 *wl, struct wl12xx_vif *wlvif,
 120                       struct cfg80211_scan_request *req);
 121 int wl18xx_scan_stop(struct wl1271 *wl, struct wl12xx_vif *wlvif);
 122 void wl18xx_scan_completed(struct wl1271 *wl, struct wl12xx_vif *wlvif);
 123 int wl18xx_sched_scan_start(struct wl1271 *wl, struct wl12xx_vif *wlvif,
 124                             struct cfg80211_sched_scan_request *req,
 125                             struct ieee80211_scan_ies *ies);
 126 void wl18xx_scan_sched_scan_stop(struct wl1271 *wl, struct wl12xx_vif *wlvif);
 127 #endif