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authorEliad Peller <eliad@wizery.com>2010-10-27 14:09:57 +0200
committerJohn W. Linville <linville@tuxdriver.com>2010-11-15 13:25:24 -0500
commitccc83b046c03378bbaf7cf095d8d7e9b9abb24c5 (patch)
tree13fc439ebd636c56f17e8094c5e4359c41e34ca7 /drivers/net/wireless/wl12xx
parent03107a4b5923aa7767329e857caf227749087e47 (diff)
downloadblackbird-op-linux-ccc83b046c03378bbaf7cf095d8d7e9b9abb24c5.tar.gz
blackbird-op-linux-ccc83b046c03378bbaf7cf095d8d7e9b9abb24c5.zip
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>
Diffstat (limited to 'drivers/net/wireless/wl12xx')
-rw-r--r--drivers/net/wireless/wl12xx/wl1271_acx.h3
-rw-r--r--drivers/net/wireless/wl12xx/wl1271_main.c9
2 files changed, 11 insertions, 1 deletions
diff --git a/drivers/net/wireless/wl12xx/wl1271_acx.h b/drivers/net/wireless/wl12xx/wl1271_acx.h
index 758916760912..b7c490845f3e 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 a3a1ebc578a3..f5b1d19bc88d 100644
--- a/drivers/net/wireless/wl12xx/wl1271_main.c
+++ b/drivers/net/wireless/wl12xx/wl1271_main.c
@@ -529,6 +529,15 @@ static void wl1271_irq_work(struct work_struct *work)
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");
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