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ath6kl: Make foreground scan a deterministic one

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This makes the device get into scan state as soon as a
scan request is received, instead of blocking the scan
request till the traffic comes down. It is  necessary
for the deterministic foreground scan particularly when
having multiple vif operating where, if the scan is non-
deterministic, scan on one interface will not start
as long as there are traffic on the other interface. This
change passes 50 msec as foreground scan interval to fix this.

Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Vasanthakumar Thiagarajan 2012-02-21 15:30:42 +05:30 committed by Kalle Valo
parent 5378f244b6
commit 13423c3119
2 changed files with 10 additions and 4 deletions
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11
drivers/net/wireless/ath/ath6kl/cfg80211.c
View File

@ -927,14 +927,17 @@ static int ath6kl_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev,
*/
ret = ath6kl_wmi_beginscan_cmd(ar->wmi, vif->fw_vif_idx,
WMI_LONG_SCAN, force_fg_scan,
false, 0, 0, n_channels,
channels, request->no_cck,
false, 0,
ATH6KL_FG_SCAN_INTERVAL,
n_channels, channels,
request->no_cck,
request->rates);
} else {
ret = ath6kl_wmi_startscan_cmd(ar->wmi, vif->fw_vif_idx,
WMI_LONG_SCAN, force_fg_scan,
false, 0, 0, n_channels,
channels);
false, 0,
ATH6KL_FG_SCAN_INTERVAL,
n_channels, channels);
}
if (ret)
ath6kl_err("wmi_startscan_cmd failed\n");

3
drivers/net/wireless/ath/ath6kl/core.h
View File

@ -63,6 +63,9 @@
#define A_DEFAULT_LISTEN_INTERVAL 1 /* beacon intervals */
#define A_MAX_WOW_LISTEN_INTERVAL 1000
/* Channel dwell time in fg scan */
#define ATH6KL_FG_SCAN_INTERVAL 50 /* in ms */
/* includes also the null byte */
#define ATH6KL_FIRMWARE_MAGIC "QCA-ATH6KL"