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/*
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* This file is part of wl1271
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*
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* Copyright (C) 2009-2010 Nokia Corporation
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*
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* Contact: Luciano Coelho <luciano.coelho@nokia.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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#ifndef __WL1271_SCAN_H__
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#define __WL1271_SCAN_H__
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#include "wl1271.h"
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int wl1271_scan(struct wl1271 *wl, const u8 *ssid, size_t ssid_len,
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struct cfg80211_scan_request *req);
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int wl1271_scan_build_probe_req(struct wl1271 *wl,
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const u8 *ssid, size_t ssid_len,
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const u8 *ie, size_t ie_len, u8 band);
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void wl1271_scan_stm(struct wl1271 *wl);
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void wl1271_scan_complete_work(struct work_struct *work);
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#define WL1271_SCAN_MAX_CHANNELS 24
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#define WL1271_SCAN_DEFAULT_TAG 1
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#define WL1271_SCAN_CURRENT_TX_PWR 0
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#define WL1271_SCAN_OPT_ACTIVE 0
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#define WL1271_SCAN_OPT_PASSIVE 1
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#define WL1271_SCAN_OPT_PRIORITY_HIGH 4
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#define WL1271_SCAN_BAND_2_4_GHZ 0
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#define WL1271_SCAN_BAND_5_GHZ 1
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#define WL1271_SCAN_TIMEOUT 10000 /* msec */
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enum {
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WL1271_SCAN_STATE_IDLE,
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WL1271_SCAN_STATE_2GHZ_ACTIVE,
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WL1271_SCAN_STATE_2GHZ_PASSIVE,
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WL1271_SCAN_STATE_5GHZ_ACTIVE,
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WL1271_SCAN_STATE_5GHZ_PASSIVE,
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WL1271_SCAN_STATE_DONE
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};
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struct basic_scan_params {
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__le32 rx_config_options;
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__le32 rx_filter_options;
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/* Scan option flags (WL1271_SCAN_OPT_*) */
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__le16 scan_options;
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/* Number of scan channels in the list (maximum 30) */
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u8 n_ch;
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/* This field indicates the number of probe requests to send
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per channel for an active scan */
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u8 n_probe_reqs;
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/* Rate bit field for sending the probes */
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__le32 tx_rate;
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u8 tid_trigger;
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u8 ssid_len;
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/* in order to align */
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u8 padding1[2];
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u8 ssid[IW_ESSID_MAX_SIZE];
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/* Band to scan */
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u8 band;
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u8 use_ssid_list;
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u8 scan_tag;
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u8 padding2;
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} __packed;
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struct basic_scan_channel_params {
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/* Duration in TU to wait for frames on a channel for active scan */
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__le32 min_duration;
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__le32 max_duration;
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__le32 bssid_lsb;
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__le16 bssid_msb;
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u8 early_termination;
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u8 tx_power_att;
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u8 channel;
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/* FW internal use only! */
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u8 dfs_candidate;
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u8 activity_detected;
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u8 pad;
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} __packed;
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struct wl1271_cmd_scan {
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struct wl1271_cmd_header header;
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struct basic_scan_params params;
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struct basic_scan_channel_params channels[WL1271_SCAN_MAX_CHANNELS];
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} __packed;
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struct wl1271_cmd_trigger_scan_to {
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struct wl1271_cmd_header header;
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__le32 timeout;
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} __packed;
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#endif /* __WL1271_SCAN_H__ */
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