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wl12xx: add separate config value for DFS dwell time on sched scan

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Use a different value for DFS dwell time when performing a scheduled
scan.  Previously we were using the same value as for normal passive
scans.  This adds some flexibility between these two different types
of passive scan.

For now we use 150 TUs for DFS channel dwell time.  This may need to
be fine-tuned in the future.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Luciano Coelho 2011-05-27 15:34:47 +03:00 committed by John W. Linville
parent 2497a246e8
commit 50a66d7f04
3 changed files with 9 additions and 2 deletions
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3
drivers/net/wireless/wl12xx/conf.h
View file

@ -1157,6 +1157,9 @@ struct conf_sched_scan_settings {
/* time to wait on the channel for passive scans (in TUs) */
u32 dwell_time_passive;
/* time to wait on the channel for DFS scans (in TUs) */
u32 dwell_time_dfs;
/* number of probe requests to send on each channel in active scans */
u8 num_probe_reqs;

1
drivers/net/wireless/wl12xx/main.c
View file

@ -311,6 +311,7 @@ static struct conf_drv_settings default_conf = {
.min_dwell_time_active = 8,
.max_dwell_time_active = 30,
.dwell_time_passive = 100,
.dwell_time_dfs = 150,
.num_probe_reqs = 2,
.rssi_threshold = -90,
.snr_threshold = 0,

7
drivers/net/wireless/wl12xx/scan.c
View file

@ -352,9 +352,12 @@ wl1271_scan_get_sched_scan_channels(struct wl1271 *wl,
wl1271_debug(DEBUG_SCAN, "max_power %d",
req->channels[i]->max_power);
if (flags & IEEE80211_CHAN_RADAR)
if (flags & IEEE80211_CHAN_RADAR) {
channels[j].flags |= SCAN_CHANNEL_FLAGS_DFS;
if (flags & IEEE80211_CHAN_PASSIVE_SCAN) {
channels[j].passive_duration =
cpu_to_le16(c->dwell_time_dfs);
}
else if (flags & IEEE80211_CHAN_PASSIVE_SCAN) {
channels[j].passive_duration =
cpu_to_le16(c->dwell_time_passive);
} else {