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path: root/drivers/net/wireless/wl12xx/wl1251_ps.c
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Diffstat (limited to 'drivers/net/wireless/wl12xx/wl1251_ps.c')
-rw-r--r--drivers/net/wireless/wl12xx/wl1251_ps.c44
1 files changed, 39 insertions, 5 deletions
diff --git a/drivers/net/wireless/wl12xx/wl1251_ps.c b/drivers/net/wireless/wl12xx/wl1251_ps.c
index c53e287..9931b19 100644
--- a/drivers/net/wireless/wl12xx/wl1251_ps.c
+++ b/drivers/net/wireless/wl12xx/wl1251_ps.c
@@ -28,17 +28,41 @@
#define WL1251_WAKEUP_TIMEOUT 2000
-/* Routines to toggle sleep mode while in ELP */
-void wl1251_ps_elp_sleep(struct wl1251 *wl)
+void wl1251_elp_work(struct work_struct *work)
{
+ struct delayed_work *dwork;
+ struct wl1251 *wl;
+
+ dwork = container_of(work, struct delayed_work, work);
+ wl = container_of(dwork, struct wl1251, elp_work);
+
+ wl1251_debug(DEBUG_PSM, "elp work");
+
+ mutex_lock(&wl->mutex);
+
if (wl->elp || !wl->psm)
- return;
+ goto out;
wl1251_debug(DEBUG_PSM, "chip to elp");
-
wl1251_write32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, ELPCTRL_SLEEP);
-
wl->elp = true;
+
+out:
+ mutex_unlock(&wl->mutex);
+}
+
+#define ELP_ENTRY_DELAY 5
+
+/* Routines to toggle sleep mode while in ELP */
+void wl1251_ps_elp_sleep(struct wl1251 *wl)
+{
+ unsigned long delay;
+
+ if (wl->psm) {
+ cancel_delayed_work(&wl->elp_work);
+ delay = msecs_to_jiffies(ELP_ENTRY_DELAY);
+ ieee80211_queue_delayed_work(wl->hw, &wl->elp_work, delay);
+ }
}
int wl1251_ps_elp_wakeup(struct wl1251 *wl)
@@ -119,6 +143,11 @@ int wl1251_ps_set_mode(struct wl1251 *wl, enum wl1251_cmd_ps_mode mode)
case STATION_POWER_SAVE_MODE:
wl1251_debug(DEBUG_PSM, "entering psm");
+ /* enable beacon filtering */
+ ret = wl1251_acx_beacon_filter_opt(wl, true);
+ if (ret < 0)
+ return ret;
+
ret = wl1251_acx_wake_up_conditions(wl,
WAKE_UP_EVENT_DTIM_BITMAP,
wl->listen_int);
@@ -142,6 +171,11 @@ int wl1251_ps_set_mode(struct wl1251 *wl, enum wl1251_cmd_ps_mode mode)
if (ret < 0)
return ret;
+ /* disable beacon filtering */
+ ret = wl1251_acx_beacon_filter_opt(wl, false);
+ if (ret < 0)
+ return ret;
+
ret = wl1251_acx_wake_up_conditions(wl,
WAKE_UP_EVENT_DTIM_BITMAP,
wl->listen_int);
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