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rt2800usb: add timer to handle TX_STA_FIFO

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TX status is reported by the hardware when a packet has been
sent (or after TX failed after possible retries), which is some
time after the DMA completion.  Since the rt2800usb hardware can
not signal interrupts we have to use a timer, otherwise the
TX status would only be read by the next packet's TX DMA
completion, or by the watchdog thread.

Signed-off-by: Johannes Stezenbach <js@sig21.net>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Stezenbach
2011-04-18 15:30:36 +02:00
committed by John W. Linville
parent 6e6d6932a3
commit f0187a1987
4 changed files with 51 additions and 2 deletions
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1
drivers/net/wireless/rt2x00/rt2x00dev.c
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@@ -1071,6 +1071,7 @@ void rt2x00lib_remove_dev(struct rt2x00_dev *rt2x00dev)
/*
* Stop all work.
*/
del_timer_sync(&rt2x00dev->txstatus_timer);
cancel_work_sync(&rt2x00dev->intf_work);
if (rt2x00_is_usb(rt2x00dev)) {
cancel_work_sync(&rt2x00dev->rxdone_work);