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authorEyal Shapira <eyal@wizery.com>2012-02-02 12:54:28 +0100
committerLuciano Coelho <coelho@ti.com>2012-02-15 07:38:35 +0100
commitd647f2dd1a445f5a683372f1b47919fe92c19896 (patch)
tree0aab06854d18e0f9b538cd2b60cf22bbb09c91f2 /drivers/net/wireless
parentwl12xx: increase max probe-req template size to WL1271_CMD_TEMPL_MAX_SIZE (diff)
downloadlinux-d647f2dd1a445f5a683372f1b47919fe92c19896.tar.xz
linux-d647f2dd1a445f5a683372f1b47919fe92c19896.zip
wl12xx: use split scan for normal scan
Split scan allows the FW to schedule other activities during a scan which may be a long operation. This is achieved by setting a trigger TID to ANY_TID and a scan trigger timeout other than 0. The default one is set to 50ms. Signed-off-by: Eyal Shapira <eyal@wizey.com> Signed-off-by: Igal Chernobelsky <igalc@ti.com> Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
Diffstat (limited to 'drivers/net/wireless')
-rw-r--r--drivers/net/wireless/wl12xx/conf.h8
-rw-r--r--drivers/net/wireless/wl12xx/main.c1
-rw-r--r--drivers/net/wireless/wl12xx/scan.c8
-rw-r--r--drivers/net/wireless/wl12xx/scan.h2
4 files changed, 15 insertions, 4 deletions
diff --git a/drivers/net/wireless/wl12xx/conf.h b/drivers/net/wireless/wl12xx/conf.h
index 823535cdf150..cc50faaf03d1 100644
--- a/drivers/net/wireless/wl12xx/conf.h
+++ b/drivers/net/wireless/wl12xx/conf.h
@@ -1082,6 +1082,14 @@ struct conf_scan_settings {
*/
u16 num_probe_reqs;
+ /*
+ * Scan trigger (split scan) timeout. The FW will split the scan
+ * operation into slices of the given time and allow the FW to schedule
+ * other tasks in between.
+ *
+ * Range: u32 Microsecs
+ */
+ u32 split_scan_timeout;
};
struct conf_sched_scan_settings {
diff --git a/drivers/net/wireless/wl12xx/main.c b/drivers/net/wireless/wl12xx/main.c
index 253847ff344b..723df48ed447 100644
--- a/drivers/net/wireless/wl12xx/main.c
+++ b/drivers/net/wireless/wl12xx/main.c
@@ -272,6 +272,7 @@ static struct conf_drv_settings default_conf = {
.min_dwell_time_passive = 100000,
.max_dwell_time_passive = 100000,
.num_probe_reqs = 2,
+ .split_scan_timeout = 50000,
},
.sched_scan = {
/* sched_scan requires dwell times in TU instead of TU/1000 */
diff --git a/drivers/net/wireless/wl12xx/scan.c b/drivers/net/wireless/wl12xx/scan.c
index e3566ca90f0d..e43a6b2c1d91 100644
--- a/drivers/net/wireless/wl12xx/scan.c
+++ b/drivers/net/wireless/wl12xx/scan.c
@@ -172,6 +172,9 @@ static int wl1271_scan_send(struct wl1271 *wl, struct ieee80211_vif *vif,
goto out;
}
+ if (wl->conf.scan.split_scan_timeout)
+ scan_options |= WL1271_SCAN_OPT_SPLIT_SCAN;
+
if (passive)
scan_options |= WL1271_SCAN_OPT_PASSIVE;
@@ -198,7 +201,7 @@ static int wl1271_scan_send(struct wl1271 *wl, struct ieee80211_vif *vif,
cmd->params.tx_rate = cpu_to_le32(basic_rate);
cmd->params.n_probe_reqs = wl->conf.scan.num_probe_reqs;
- cmd->params.tid_trigger = 0;
+ cmd->params.tid_trigger = CONF_TX_AC_ANY_TID;
cmd->params.scan_tag = WL1271_SCAN_DEFAULT_TAG;
if (band == IEEE80211_BAND_2GHZ)
@@ -223,8 +226,7 @@ static int wl1271_scan_send(struct wl1271 *wl, struct ieee80211_vif *vif,
goto out;
}
- /* disable the timeout */
- trigger->timeout = 0;
+ trigger->timeout = cpu_to_le32(wl->conf.scan.split_scan_timeout);
ret = wl1271_cmd_send(wl, CMD_TRIGGER_SCAN_TO, trigger,
sizeof(*trigger), 0);
if (ret < 0) {
diff --git a/drivers/net/wireless/wl12xx/scan.h b/drivers/net/wireless/wl12xx/scan.h
index a7ed43dc08c9..96ff457a3a0b 100644
--- a/drivers/net/wireless/wl12xx/scan.h
+++ b/drivers/net/wireless/wl12xx/scan.h
@@ -48,7 +48,7 @@ void wl1271_scan_sched_scan_results(struct wl1271 *wl);
#define WL1271_SCAN_CURRENT_TX_PWR 0
#define WL1271_SCAN_OPT_ACTIVE 0
#define WL1271_SCAN_OPT_PASSIVE 1
-#define WL1271_SCAN_OPT_TRIGGERED_SCAN 2
+#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