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| author | Jakub Kicinski <kubakici@wp.pl> | 2012-02-22 21:58:58 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-02-27 14:06:44 -0500 |
| commit | e8b461c37717d6b5c071c4924845884a86c20752 (patch) | |
| tree | 108c704c217eb547ea5cae98c610963651437c4e /drivers/net/wireless/rt2x00/rt2800pci.c | |
| parent | 09a3311c1a061bda809ff78c512855f3b71dcd6b (diff) | |
| download | blackbird-op-linux-e8b461c37717d6b5c071c4924845884a86c20752.tar.gz blackbird-op-linux-e8b461c37717d6b5c071c4924845884a86c20752.zip | |
rt2800pci: Fix 'Error - MCU request failed' during initialization
Bring MCU operations during device initialization to sync
with legacy driver.
This should fix following error:
phy0 -> rt2800pci_mcu_status: Error - MCU request failed,
no response from hardware
Signed-off-by: Jakub Kicinski <kubakici@wp.pl>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2800pci.c')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2800pci.c | 25 |
1 files changed, 17 insertions, 8 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c index 627fc2214cd3..9375db455456 100644 --- a/drivers/net/wireless/rt2x00/rt2800pci.c +++ b/drivers/net/wireless/rt2x00/rt2800pci.c @@ -502,11 +502,27 @@ static int rt2800pci_init_registers(struct rt2x00_dev *rt2x00dev) static int rt2800pci_enable_radio(struct rt2x00_dev *rt2x00dev) { + int retval; + if (unlikely(rt2800_wait_wpdma_ready(rt2x00dev) || rt2800pci_init_queues(rt2x00dev))) return -EIO; - return rt2800_enable_radio(rt2x00dev); + retval = rt2800_enable_radio(rt2x00dev); + if (retval) + return retval; + + /* After resume MCU_BOOT_SIGNAL will trash these. */ + rt2x00pci_register_write(rt2x00dev, H2M_MAILBOX_STATUS, ~0); + rt2x00pci_register_write(rt2x00dev, H2M_MAILBOX_CID, ~0); + + rt2800_mcu_request(rt2x00dev, MCU_SLEEP, TOKEN_RADIO_OFF, 0xff, 0x02); + rt2800pci_mcu_status(rt2x00dev, TOKEN_RADIO_OFF); + + rt2800_mcu_request(rt2x00dev, MCU_WAKEUP, TOKEN_WAKEUP, 0, 0); + rt2800pci_mcu_status(rt2x00dev, TOKEN_WAKEUP); + + return retval; } static void rt2800pci_disable_radio(struct rt2x00_dev *rt2x00dev) @@ -544,13 +560,6 @@ static int rt2800pci_set_device_state(struct rt2x00_dev *rt2x00dev, switch (state) { case STATE_RADIO_ON: - /* - * Before the radio can be enabled, the device first has - * to be woken up. After that it needs a bit of time - * to be fully awake and then the radio can be enabled. - */ - rt2800pci_set_state(rt2x00dev, STATE_AWAKE); - msleep(1); retval = rt2800pci_enable_radio(rt2x00dev); break; case STATE_RADIO_OFF: |
