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path: root/drivers/net/wireless/wl12xx/wl1271_ps.c
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Diffstat (limited to 'drivers/net/wireless/wl12xx/wl1271_ps.c')
-rw-r--r--drivers/net/wireless/wl12xx/wl1271_ps.c68
1 files changed, 51 insertions, 17 deletions
diff --git a/drivers/net/wireless/wl12xx/wl1271_ps.c b/drivers/net/wireless/wl12xx/wl1271_ps.c
index 1dc74b0c773..507cd91d7ee 100644
--- a/drivers/net/wireless/wl12xx/wl1271_ps.c
+++ b/drivers/net/wireless/wl12xx/wl1271_ps.c
@@ -27,25 +27,38 @@
#define WL1271_WAKEUP_TIMEOUT 500
+void wl1271_elp_work(struct work_struct *work)
+{
+ struct delayed_work *dwork;
+ struct wl1271 *wl;
+
+ dwork = container_of(work, struct delayed_work, work);
+ wl = container_of(dwork, struct wl1271, elp_work);
+
+ wl1271_debug(DEBUG_PSM, "elp work");
+
+ mutex_lock(&wl->mutex);
+
+ if (wl->elp || !wl->psm)
+ goto out;
+
+ wl1271_debug(DEBUG_PSM, "chip to elp");
+ wl1271_raw_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 wl1271_ps_elp_sleep(struct wl1271 *wl)
{
- /*
- * FIXME: due to a problem in the firmware (causing a firmware
- * crash), ELP entry is prevented below. Remove the "true" to
- * re-enable ELP entry.
- */
- if (true || wl->elp || !wl->psm)
- return;
-
- /*
- * Go to ELP unless there is work already pending - pending work
- * will immediately wakeup the chipset anyway.
- */
- if (!work_pending(&wl->irq_work) && !work_pending(&wl->tx_work)) {
- wl1271_debug(DEBUG_PSM, "chip to elp");
- wl1271_write32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, ELPCTRL_SLEEP);
- wl->elp = true;
+ if (wl->psm) {
+ cancel_delayed_work(&wl->elp_work);
+ ieee80211_queue_delayed_work(wl->hw, &wl->elp_work,
+ msecs_to_jiffies(ELP_ENTRY_DELAY));
}
}
@@ -73,7 +86,7 @@ int wl1271_ps_elp_wakeup(struct wl1271 *wl, bool chip_awake)
wl->elp_compl = &compl;
spin_unlock_irqrestore(&wl->wl_lock, flags);
- wl1271_write32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, ELPCTRL_WAKE_UP);
+ wl1271_raw_write32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, ELPCTRL_WAKE_UP);
if (!pending) {
ret = wait_for_completion_timeout(
@@ -111,6 +124,17 @@ int wl1271_ps_set_mode(struct wl1271 *wl, enum wl1271_cmd_ps_mode mode)
switch (mode) {
case STATION_POWER_SAVE_MODE:
wl1271_debug(DEBUG_PSM, "entering psm");
+
+ /* enable beacon filtering */
+ ret = wl1271_acx_beacon_filter_opt(wl, true);
+ if (ret < 0)
+ return ret;
+
+ /* enable beacon early termination */
+ ret = wl1271_acx_bet_enable(wl, true);
+ if (ret < 0)
+ return ret;
+
ret = wl1271_cmd_ps_mode(wl, STATION_POWER_SAVE_MODE);
if (ret < 0)
return ret;
@@ -128,6 +152,16 @@ int wl1271_ps_set_mode(struct wl1271 *wl, enum wl1271_cmd_ps_mode mode)
if (ret < 0)
return ret;
+ /* disable beacon early termination */
+ ret = wl1271_acx_bet_enable(wl, false);
+ if (ret < 0)
+ return ret;
+
+ /* disable beacon filtering */
+ ret = wl1271_acx_beacon_filter_opt(wl, false);
+ if (ret < 0)
+ return ret;
+
ret = wl1271_cmd_ps_mode(wl, STATION_ACTIVE_MODE);
if (ret < 0)
return ret;