alistair23-linux/drivers/net/wireless/ti/wlcore/scan.h
Eliad Peller 8698a3a4ff wl18xx: use long intervals in sched scan
Add support for long intervals on sched scan.

If configured, the original request interval will
be used num_short_interval times, and then the
long interval will be used.

While on it, fix the scan command field names
to reflect the expected value is in ms (rather
than secs).

These values will be taken from the conf file,
so bump its version accordingly.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-08-10 22:16:21 +03:00

179 lines
4.8 KiB
C

/*
* This file is part of wl1271
*
* Copyright (C) 2009-2010 Nokia Corporation
*
* Contact: Luciano Coelho <luciano.coelho@nokia.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
*/
#ifndef __SCAN_H__
#define __SCAN_H__
#include "wlcore.h"
int wlcore_scan(struct wl1271 *wl, struct ieee80211_vif *vif,
const u8 *ssid, size_t ssid_len,
struct cfg80211_scan_request *req);
int wl1271_scan_build_probe_req(struct wl1271 *wl,
const u8 *ssid, size_t ssid_len,
const u8 *ie, size_t ie_len, u8 band);
void wl1271_scan_stm(struct wl1271 *wl, struct wl12xx_vif *wlvif);
void wl1271_scan_complete_work(struct work_struct *work);
int wl1271_scan_sched_scan_config(struct wl1271 *wl,
struct wl12xx_vif *wlvif,
struct cfg80211_sched_scan_request *req,
struct ieee80211_scan_ies *ies);
int wl1271_scan_sched_scan_start(struct wl1271 *wl, struct wl12xx_vif *wlvif);
void wlcore_scan_sched_scan_results(struct wl1271 *wl);
#define WL1271_SCAN_MAX_CHANNELS 24
#define WL1271_SCAN_DEFAULT_TAG 1
#define WL1271_SCAN_CURRENT_TX_PWR 0
#define WL1271_SCAN_OPT_ACTIVE 0
#define WL1271_SCAN_OPT_PASSIVE 1
#define WL1271_SCAN_OPT_SPLIT_SCAN 2
#define WL1271_SCAN_OPT_PRIORITY_HIGH 4
/* scan even if we fail to enter psm */
#define WL1271_SCAN_OPT_FORCE 8
#define WL1271_SCAN_BAND_2_4_GHZ 0
#define WL1271_SCAN_BAND_5_GHZ 1
#define WL1271_SCAN_TIMEOUT 30000 /* msec */
enum {
WL1271_SCAN_STATE_IDLE,
WL1271_SCAN_STATE_2GHZ_ACTIVE,
WL1271_SCAN_STATE_2GHZ_PASSIVE,
WL1271_SCAN_STATE_5GHZ_ACTIVE,
WL1271_SCAN_STATE_5GHZ_PASSIVE,
WL1271_SCAN_STATE_DONE
};
struct wl1271_cmd_trigger_scan_to {
struct wl1271_cmd_header header;
__le32 timeout;
} __packed;
#define MAX_CHANNELS_2GHZ 14
#define MAX_CHANNELS_4GHZ 4
/*
* This max value here is used only for the struct definition of
* wlcore_scan_channels. This struct is used by both 12xx
* and 18xx (which have different max 5ghz channels value).
* In order to make sure this is large enough, just use the
* max possible 5ghz channels.
*/
#define MAX_CHANNELS_5GHZ 42
#define SCAN_MAX_CYCLE_INTERVALS 16
/* The FW intervals can take up to 16 entries.
* The 1st entry isn't used (scan is immediate). The last
* entry should be used for the long_interval
*/
#define SCAN_MAX_SHORT_INTERVALS (SCAN_MAX_CYCLE_INTERVALS - 2)
#define SCAN_MAX_BANDS 3
enum {
SCAN_SSID_FILTER_ANY = 0,
SCAN_SSID_FILTER_SPECIFIC = 1,
SCAN_SSID_FILTER_LIST = 2,
SCAN_SSID_FILTER_DISABLED = 3
};
enum {
SCAN_BSS_TYPE_INDEPENDENT,
SCAN_BSS_TYPE_INFRASTRUCTURE,
SCAN_BSS_TYPE_ANY,
};
#define SCAN_CHANNEL_FLAGS_DFS BIT(0) /* channel is passive until an
activity is detected on it */
#define SCAN_CHANNEL_FLAGS_DFS_ENABLED BIT(1)
struct conn_scan_ch_params {
__le16 min_duration;
__le16 max_duration;
__le16 passive_duration;
u8 channel;
u8 tx_power_att;
/* bit 0: DFS channel; bit 1: DFS enabled */
u8 flags;
u8 padding[3];
} __packed;
#define SCHED_SCAN_MAX_SSIDS 16
enum {
SCAN_SSID_TYPE_PUBLIC = 0,
SCAN_SSID_TYPE_HIDDEN = 1,
};
struct wl1271_ssid {
u8 type;
u8 len;
u8 ssid[IEEE80211_MAX_SSID_LEN];
/* u8 padding[2]; */
} __packed;
struct wl1271_cmd_sched_scan_ssid_list {
struct wl1271_cmd_header header;
u8 n_ssids;
struct wl1271_ssid ssids[SCHED_SCAN_MAX_SSIDS];
u8 role_id;
u8 padding[2];
} __packed;
struct wlcore_scan_channels {
u8 passive[SCAN_MAX_BANDS]; /* number of passive scan channels */
u8 active[SCAN_MAX_BANDS]; /* number of active scan channels */
u8 dfs; /* number of dfs channels in 5ghz */
u8 passive_active; /* number of passive before active channels 2.4ghz */
struct conn_scan_ch_params channels_2[MAX_CHANNELS_2GHZ];
struct conn_scan_ch_params channels_5[MAX_CHANNELS_5GHZ];
struct conn_scan_ch_params channels_4[MAX_CHANNELS_4GHZ];
};
enum {
SCAN_TYPE_SEARCH = 0,
SCAN_TYPE_PERIODIC = 1,
SCAN_TYPE_TRACKING = 2,
};
bool
wlcore_set_scan_chan_params(struct wl1271 *wl,
struct wlcore_scan_channels *cfg,
struct ieee80211_channel *channels[],
u32 n_channels,
u32 n_ssids,
int scan_type);
int
wlcore_scan_sched_scan_ssid_list(struct wl1271 *wl,
struct wl12xx_vif *wlvif,
struct cfg80211_sched_scan_request *req);
#endif /* __WL1271_SCAN_H__ */