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rt2x00: Add kill_tx_queue callback function

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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>
This commit is contained in:
Ivo van Doorn
2009-01-28 00:32:33 +01:00
committed by John W. Linville
parent 382fe0f2da
commit a2c9b652a1
12 changed files with 148 additions and 75 deletions
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62
drivers/net/wireless/rt2x00/rt2x00usb.c
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@@ -296,6 +296,41 @@ void rt2x00usb_kick_tx_queue(struct rt2x00_dev *rt2x00dev,
}
EXPORT_SYMBOL_GPL(rt2x00usb_kick_tx_queue);
void rt2x00usb_kill_tx_queue(struct rt2x00_dev *rt2x00dev,
const enum data_queue_qid qid)
{
struct data_queue *queue = rt2x00queue_get_queue(rt2x00dev, qid);
struct queue_entry_priv_usb *entry_priv;
struct queue_entry_priv_usb_bcn *bcn_priv;
unsigned int i;
bool kill_guard;
/*
* When killing the beacon queue, we must also kill
* the beacon guard byte.
*/
kill_guard =
(qid == QID_BEACON) &&
(test_bit(DRIVER_REQUIRE_BEACON_GUARD, &rt2x00dev->flags));
/*
* Cancel all entries.
*/
for (i = 0; i < queue->limit; i++) {
entry_priv = queue->entries[i].priv_data;
usb_kill_urb(entry_priv->urb);
/*
* Kill guardian urb (if required by driver).
*/
if (kill_guard) {
bcn_priv = queue->entries[i].priv_data;
usb_kill_urb(bcn_priv->guardian_urb);
}
}
}
EXPORT_SYMBOL_GPL(rt2x00usb_kill_tx_queue);
/*
* RX data handlers.
*/
@@ -338,35 +373,14 @@ static void rt2x00usb_interrupt_rxdone(struct urb *urb)
*/
void rt2x00usb_disable_radio(struct rt2x00_dev *rt2x00dev)
{
struct queue_entry_priv_usb *entry_priv;
struct queue_entry_priv_usb_bcn *bcn_priv;
struct data_queue *queue;
unsigned int i;
rt2x00usb_vendor_request_sw(rt2x00dev, USB_RX_CONTROL, 0, 0,
REGISTER_TIMEOUT);
/*
* Cancel all queues.
* The USB version of kill_tx_queue also works
* on the RX queue.
*/
queue_for_each(rt2x00dev, queue) {
for (i = 0; i < queue->limit; i++) {
entry_priv = queue->entries[i].priv_data;
usb_kill_urb(entry_priv->urb);
}
}
/*
* Kill guardian urb (if required by driver).
*/
if (!test_bit(DRIVER_REQUIRE_BEACON_GUARD, &rt2x00dev->flags))
return;
for (i = 0; i < rt2x00dev->bcn->limit; i++) {
bcn_priv = rt2x00dev->bcn->entries[i].priv_data;
if (bcn_priv->guardian_urb)
usb_kill_urb(bcn_priv->guardian_urb);
}
rt2x00dev->ops->lib->kill_tx_queue(rt2x00dev, QID_RX);
}
EXPORT_SYMBOL_GPL(rt2x00usb_disable_radio);