1 files changed, 30 insertions, 19 deletions

diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c
index 029be3c6c030..5ff72deea8d4 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.c
+++ b/drivers/net/wireless/rt2x00/rt73usb.c
@@ -502,26 +502,14 @@ static void rt73usb_config_intf(struct rt2x00_dev *rt2x00dev,
                                 struct rt2x00intf_conf *conf,
                                 const unsigned int flags)
 {
-        unsigned int beacon_base;
         u32 reg;
 
         if (flags & CONFIG_UPDATE_TYPE) {
                 /*
-                 * Clear current synchronisation setup.
-                 * For the Beacon base registers we only need to clear
-                 * the first byte since that byte contains the VALID and OWNER
-                 * bits which (when set to 0) will invalidate the entire beacon.
-                 */
-                beacon_base = HW_BEACON_OFFSET(intf->beacon->entry_idx);
-                rt2x00usb_register_write(rt2x00dev, beacon_base, 0);
-
-                /*
                  * Enable synchronisation.
                  */
                 rt2x00usb_register_read(rt2x00dev, TXRX_CSR9, &reg);
-                rt2x00_set_field32(&reg, TXRX_CSR9_TSF_TICKING, 1);
                 rt2x00_set_field32(&reg, TXRX_CSR9_TSF_SYNC, conf->sync);
-                rt2x00_set_field32(&reg, TXRX_CSR9_TBTT_ENABLE, 1);
                 rt2x00usb_register_write(rt2x00dev, TXRX_CSR9, reg);
         }
 
@@ -1440,9 +1428,7 @@ static int rt73usb_set_device_state(struct rt2x00_dev *rt2x00dev,
                 rt73usb_disable_radio(rt2x00dev);
                 break;
         case STATE_RADIO_IRQ_ON:
-        case STATE_RADIO_IRQ_ON_ISR:
         case STATE_RADIO_IRQ_OFF:
-        case STATE_RADIO_IRQ_OFF_ISR:
                 /* No support, but no error either */
                 break;
         case STATE_DEEP_SLEEP:
@@ -1590,8 +1576,6 @@ static void rt73usb_write_beacon(struct queue_entry *entry,
          */
         rt2x00usb_register_write(rt2x00dev, TXRX_CSR10, 0x00001008);
 
-        rt2x00_set_field32(&reg, TXRX_CSR9_TSF_TICKING, 1);
-        rt2x00_set_field32(&reg, TXRX_CSR9_TBTT_ENABLE, 1);
         rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_GEN, 1);
         rt2x00usb_register_write(rt2x00dev, TXRX_CSR9, reg);
 
@@ -1602,6 +1586,33 @@ static void rt73usb_write_beacon(struct queue_entry *entry,
         entry->skb = NULL;
 }
 
+static void rt73usb_clear_beacon(struct queue_entry *entry)
+{
+        struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
+        unsigned int beacon_base;
+        u32 reg;
+
+        /*
+         * Disable beaconing while we are reloading the beacon data,
+         * otherwise we might be sending out invalid data.
+         */
+        rt2x00usb_register_read(rt2x00dev, TXRX_CSR9, &reg);
+        rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_GEN, 0);
+        rt2x00usb_register_write(rt2x00dev, TXRX_CSR9, reg);
+
+        /*
+         * Clear beacon.
+         */
+        beacon_base = HW_BEACON_OFFSET(entry->entry_idx);
+        rt2x00usb_register_write(rt2x00dev, beacon_base, 0);
+
+        /*
+         * Enable beaconing again.
+         */
+        rt2x00_set_field32(&reg, TXRX_CSR9_BEACON_GEN, 1);
+        rt2x00usb_register_write(rt2x00dev, TXRX_CSR9, reg);
+}
+
 static int rt73usb_get_tx_data_len(struct queue_entry *entry)
 {
         int length;
@@ -1698,9 +1709,8 @@ static void rt73usb_fill_rxdone(struct queue_entry *entry,
                 rxdesc->flags |= RX_FLAG_IV_STRIPPED;
 
                 /*
-                 * FIXME: Legacy driver indicates that the frame does
-                 * contain the Michael Mic. Unfortunately, in rt2x00
-                 * the MIC seems to be missing completely...
+                 * The hardware has already checked the Michael Mic and has
+                 * stripped it from the frame. Signal this to mac80211.
                  */
                 rxdesc->flags |= RX_FLAG_MMIC_STRIPPED;
 
@@ -2313,6 +2323,7 @@ static const struct rt2x00lib_ops rt73usb_rt2x00_ops = {
         .flush_queue            = rt2x00usb_flush_queue,
         .write_tx_desc          = rt73usb_write_tx_desc,
         .write_beacon           = rt73usb_write_beacon,
+        .clear_beacon           = rt73usb_clear_beacon,
         .get_tx_data_len        = rt73usb_get_tx_data_len,
         .fill_rxdone            = rt73usb_fill_rxdone,
         .config_shared_key      = rt73usb_config_shared_key,