rt2x00: Add kill_tx_queue callback function

provide rt2x00lib the possibility to kill a particular TX queue.
This can be useful when disabling the radio, but more importantly
will allow beaconing to be disabled when mac80211 requests this
(during scanning for example)

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 17 insertions, 13 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c
index b9104e28bc2e..eb82860c54f9 100644
--- a/drivers/net/wireless/rt2x00/rt2500pci.c
+++ b/drivers/net/wireless/rt2x00/rt2500pci.c
@@ -1093,21 +1093,10 @@ static int rt2500pci_enable_radio(struct rt2x00_dev *rt2x00dev)
 
 static void rt2500pci_disable_radio(struct rt2x00_dev *rt2x00dev)
 {
-        u32 reg;
-
-        rt2x00pci_register_write(rt2x00dev, PWRCSR0, 0);
-
         /*
-         * Disable synchronisation.
+         * Disable power
          */
-        rt2x00pci_register_write(rt2x00dev, CSR14, 0);
-
-        /*
-         * Cancel RX and TX.
-         */
-        rt2x00pci_register_read(rt2x00dev, TXCSR0, &reg);
-        rt2x00_set_field32(&reg, TXCSR0_ABORT, 1);
-        rt2x00pci_register_write(rt2x00dev, TXCSR0, reg);
+        rt2x00pci_register_write(rt2x00dev, PWRCSR0, 0);
 }
 
 static int rt2500pci_set_state(struct rt2x00_dev *rt2x00dev,
@@ -1303,6 +1292,20 @@ static void rt2500pci_kick_tx_queue(struct rt2x00_dev *rt2x00dev,
         rt2x00pci_register_write(rt2x00dev, TXCSR0, reg);
 }
 
+static void rt2500pci_kill_tx_queue(struct rt2x00_dev *rt2x00dev,
+                                    const enum data_queue_qid qid)
+{
+        u32 reg;
+
+        if (qid == QID_BEACON) {
+                rt2x00pci_register_write(rt2x00dev, CSR14, 0);
+        } else {
+                rt2x00pci_register_read(rt2x00dev, TXCSR0, &reg);
+                rt2x00_set_field32(&reg, TXCSR0_ABORT, 1);
+                rt2x00pci_register_write(rt2x00dev, TXCSR0, reg);
+        }
+}
+
 /*
  * RX control handlers
  */
@@ -1905,6 +1908,7 @@ static const struct rt2x00lib_ops rt2500pci_rt2x00_ops = {
         .write_tx_data          = rt2x00pci_write_tx_data,
         .write_beacon           = rt2500pci_write_beacon,
         .kick_tx_queue          = rt2500pci_kick_tx_queue,
+        .kill_tx_queue          = rt2500pci_kill_tx_queue,
         .fill_rxdone            = rt2500pci_fill_rxdone,
         .config_filter          = rt2500pci_config_filter,
         .config_intf            = rt2500pci_config_intf,