rt2x00: Add wakeup interrupt handler to rt61pci.

This is needed to wake up the device automatically for receiving beacons,
and is required for proper powersave handling.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c
index e2da928dd9f067b3008ae510be2b9806b1919517..ac69dbe5719b2953b48b2730d772c3a94a74e136 100644 (file)
--- a/drivers/net/wireless/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/rt2x00/rt61pci.c
@@ -2117,6 +2117,14 @@ static void rt61pci_txdone(struct rt2x00_dev *rt2x00dev)
        }
 }
 
+static void rt61pci_wakeup(struct rt2x00_dev *rt2x00dev)
+{
+       struct ieee80211_conf conf = { .flags = 0 };
+       struct rt2x00lib_conf libconf = { .conf = &conf };
+
+       rt61pci_config(rt2x00dev, &libconf, IEEE80211_CONF_CHANGE_PS);
+}
+
 static irqreturn_t rt61pci_interrupt(int irq, void *dev_instance)
 {
        struct rt2x00_dev *rt2x00dev = dev_instance;
@@ -2164,6 +2172,12 @@ static irqreturn_t rt61pci_interrupt(int irq, void *dev_instance)
                rt2x00pci_register_write(rt2x00dev,
                                         M2H_CMD_DONE_CSR, 0xffffffff);
 
+       /*
+        * 4 - MCU Autowakeup interrupt.
+        */
+       if (rt2x00_get_field32(reg_mcu, MCU_INT_SOURCE_CSR_TWAKEUP))
+               rt61pci_wakeup(rt2x00dev);
+
        return IRQ_HANDLED;
 }