wl1271: handle HW watchdog interrupt
unmask the WL1271_ACX_INTR_WATCHDOG interrupt.
when getting it - enqueue a recovery work and bail out.
Signed-off-by: Eliad Peller <eliad@wizery.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
diff --git a/drivers/net/wireless/wl12xx/wl1271_acx.h b/drivers/net/wireless/wl12xx/wl1271_acx.h
index 7589167..b7c4908 100644
--- a/drivers/net/wireless/wl12xx/wl1271_acx.h
+++ b/drivers/net/wireless/wl12xx/wl1271_acx.h
@@ -61,7 +61,8 @@
WL1271_ACX_INTR_HW_AVAILABLE | \
WL1271_ACX_INTR_DATA)
-#define WL1271_INTR_MASK (WL1271_ACX_INTR_EVENT_A | \
+#define WL1271_INTR_MASK (WL1271_ACX_INTR_WATCHDOG | \
+ WL1271_ACX_INTR_EVENT_A | \
WL1271_ACX_INTR_EVENT_B | \
WL1271_ACX_INTR_HW_AVAILABLE | \
WL1271_ACX_INTR_DATA)
diff --git a/drivers/net/wireless/wl12xx/wl1271_main.c b/drivers/net/wireless/wl12xx/wl1271_main.c
index a3a1ebc..f5b1d19 100644
--- a/drivers/net/wireless/wl12xx/wl1271_main.c
+++ b/drivers/net/wireless/wl12xx/wl1271_main.c
@@ -529,6 +529,15 @@
intr &= WL1271_INTR_MASK;
+ if (unlikely(intr & WL1271_ACX_INTR_WATCHDOG)) {
+ wl1271_error("watchdog interrupt received! "
+ "starting recovery.");
+ ieee80211_queue_work(wl->hw, &wl->recovery_work);
+
+ /* restarting the chip. ignore any other interrupt. */
+ goto out;
+ }
+
if (intr & WL1271_ACX_INTR_DATA) {
wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_DATA");