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, 21 insertions, 16 deletions

diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c
index d81a8de9dc17..c7ad1b3d4765 100644
--- a/drivers/net/wireless/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/rt2x00/rt61pci.c
@@ -1696,24 +1696,10 @@ static int rt61pci_enable_radio(struct rt2x00_dev *rt2x00dev)
 
 static void rt61pci_disable_radio(struct rt2x00_dev *rt2x00dev)
 {
-        u32 reg;
-
-        rt2x00pci_register_write(rt2x00dev, MAC_CSR10, 0x00001818);
-
-        /*
-         * Disable synchronisation.
-         */
-        rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, 0);
-
         /*
-         * Cancel RX and TX.
+         * Disable power
          */
-        rt2x00pci_register_read(rt2x00dev, TX_CNTL_CSR, &reg);
-        rt2x00_set_field32(&reg, TX_CNTL_CSR_ABORT_TX_AC0, 1);
-        rt2x00_set_field32(&reg, TX_CNTL_CSR_ABORT_TX_AC1, 1);
-        rt2x00_set_field32(&reg, TX_CNTL_CSR_ABORT_TX_AC2, 1);
-        rt2x00_set_field32(&reg, TX_CNTL_CSR_ABORT_TX_AC3, 1);
-        rt2x00pci_register_write(rt2x00dev, TX_CNTL_CSR, reg);
+        rt2x00pci_register_write(rt2x00dev, MAC_CSR10, 0x00001818);
 }
 
 static int rt61pci_set_state(struct rt2x00_dev *rt2x00dev, enum dev_state state)
@@ -1936,6 +1922,24 @@ static void rt61pci_kick_tx_queue(struct rt2x00_dev *rt2x00dev,
         rt2x00pci_register_write(rt2x00dev, TX_CNTL_CSR, reg);
 }
 
+static void rt61pci_kill_tx_queue(struct rt2x00_dev *rt2x00dev,
+                                  const enum data_queue_qid qid)
+{
+        u32 reg;
+
+        if (qid == QID_BEACON) {
+                rt2x00pci_register_write(rt2x00dev, TXRX_CSR9, 0);
+                return;
+        }
+
+        rt2x00pci_register_read(rt2x00dev, TX_CNTL_CSR, &reg);
+        rt2x00_set_field32(&reg, TX_CNTL_CSR_ABORT_TX_AC0, (qid == QID_AC_BE));
+        rt2x00_set_field32(&reg, TX_CNTL_CSR_ABORT_TX_AC1, (qid == QID_AC_BK));
+        rt2x00_set_field32(&reg, TX_CNTL_CSR_ABORT_TX_AC2, (qid == QID_AC_VI));
+        rt2x00_set_field32(&reg, TX_CNTL_CSR_ABORT_TX_AC3, (qid == QID_AC_VO));
+        rt2x00pci_register_write(rt2x00dev, TX_CNTL_CSR, reg);
+}
+
 /*
  * RX control handlers
  */
@@ -2761,6 +2765,7 @@ static const struct rt2x00lib_ops rt61pci_rt2x00_ops = {
         .write_tx_data          = rt2x00pci_write_tx_data,
         .write_beacon           = rt61pci_write_beacon,
         .kick_tx_queue          = rt61pci_kick_tx_queue,
+        .kill_tx_queue          = rt61pci_kill_tx_queue,
         .fill_rxdone            = rt61pci_fill_rxdone,
         .config_shared_key      = rt61pci_config_shared_key,
         .config_pairwise_key    = rt61pci_config_pairwise_key,