From d647f2dd1a445f5a683372f1b47919fe92c19896 Mon Sep 17 00:00:00 2001 From: Eyal Shapira Date: Thu, 2 Feb 2012 13:54:28 +0200 Subject: [PATCH] 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 Signed-off-by: Igal Chernobelsky Signed-off-by: Eliad Peller Signed-off-by: Luciano Coelho --- drivers/net/wireless/wl12xx/conf.h | 8 ++++++++ drivers/net/wireless/wl12xx/main.c | 1 + drivers/net/wireless/wl12xx/scan.c | 8 +++++--- drivers/net/wireless/wl12xx/scan.h | 2 +- 4 files changed, 15 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/wl12xx/conf.h b/drivers/net/wireless/wl12xx/conf.h index 823535cd..cc50faa 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 253847f..723df48 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 e3566ca..e43a6b2 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 a7ed43d..96ff457 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 -- 2.7.4