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rt2800usb:fix hang during firmware load 

The device 057c:8501 (AVM Fritz! WLAN v2 rev. B) boots into a state that does
not actually require loading a firmware file. The vendors driver finds out
about this by checking a firmware state register, so this patch adds this here.

Finally, with this patch applied, my wifi dongle actually becomes
useful (scan + connect to wpa network works).

Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Michael Braun 2014-06-12 19:33:41 +02:00 committed by John W. Linville
parent de51b35d50
commit b663cd10f0
1 changed files with 7 additions and 2 deletions
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9
drivers/net/wireless/rt2x00/rt2800usb.c
View File

@ -278,8 +278,13 @@ static int rt2800usb_write_firmware(struct rt2x00_dev *rt2x00dev,
/*
* Write firmware to device.
*/
rt2x00usb_register_multiwrite(rt2x00dev, FIRMWARE_IMAGE_BASE,
data + offset, length);
if (rt2800usb_autorun_detect(rt2x00dev)) {
rt2x00_info(rt2x00dev,
"Firmware loading not required - NIC in AutoRun mode\n");
} else {
rt2x00usb_register_multiwrite(rt2x00dev, FIRMWARE_IMAGE_BASE,
data + offset, length);
}
rt2x00usb_register_write(rt2x00dev, H2M_MAILBOX_CID, ~0);
rt2x00usb_register_write(rt2x00dev, H2M_MAILBOX_STATUS, ~0);