diff options
| author |   Ivo van Doorn <ivdoorn@gmail.com> | 2010-08-30 21:13:08 +0200 |
|---|---|---|
| committer |   John W. Linville <linville@tuxdriver.com> | 2010-08-31 14:22:23 -0400 |
| commit | 5ffddc498c700bb45ea55efc37746cb28d601766 (patch) | |
| tree | d3e49481b043ac1822142509147245bac45eb244 /drivers/net/wireless/rt2x00/rt2800lib.c | |
| parent | rt2x00: Update rt2800 comments regarding AMPDU and PACKET_ID in TXWI (diff) | |
| download | linux-dev-5ffddc498c700bb45ea55efc37746cb28d601766.tar.xz linux-dev-5ffddc498c700bb45ea55efc37746cb28d601766.zip | |
rt2x00: Add rt2800_wait_csr_ready
Similar to rt2800_wait_wpdma_ready() we can add a
function to waiting until the CSR is ready. This
centralizes some additional code into rt2800lib.
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2800lib.c')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2800lib.c | 28 |
1 files changed, 18 insertions, 10 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c index 25c44cfd7452..7c68bf35951f 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c @@ -255,6 +255,23 @@ void rt2800_mcu_request(struct rt2x00_dev *rt2x00dev, } EXPORT_SYMBOL_GPL(rt2800_mcu_request); +int rt2800_wait_csr_ready(struct rt2x00_dev *rt2x00dev) +{ + unsigned int i = 0; + u32 reg; + + for (i = 0; i < REGISTER_BUSY_COUNT; i++) { + rt2800_register_read(rt2x00dev, MAC_CSR0, ®); + if (reg && reg != ~0) + return 0; + msleep(1); + } + + ERROR(rt2x00dev, "Unstable hardware.\n"); + return -EBUSY; +} +EXPORT_SYMBOL_GPL(rt2800_wait_csr_ready); + int rt2800_wait_wpdma_ready(struct rt2x00_dev *rt2x00dev) { unsigned int i; @@ -370,17 +387,8 @@ int rt2800_load_firmware(struct rt2x00_dev *rt2x00dev, /* * Wait for stable hardware. */ - for (i = 0; i < REGISTER_BUSY_COUNT; i++) { - rt2800_register_read(rt2x00dev, MAC_CSR0, ®); - if (reg && reg != ~0) - break; - msleep(1); - } - - if (i == REGISTER_BUSY_COUNT) { - ERROR(rt2x00dev, "Unstable hardware.\n"); + if (rt2800_wait_csr_ready(rt2x00dev)) return -EBUSY; - } if (rt2x00_is_pci(rt2x00dev)) rt2800_register_write(rt2x00dev, PWR_PIN_CFG, 0x00000002); |