diff options
| author | Felix Fietkau <nbd@openwrt.org> | 2012-04-19 21:18:26 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-04-23 15:35:31 -0400 |
| commit | 7c5adc8d83c344dbad251091879baf1244007564 (patch) | |
| tree | 05494972ed0de7a8f9e0f634276400b597a126c2 /drivers/net/wireless/ath/ath9k/hw.c | |
| parent | 3e61d3f9b2f6381f6f30d3d0ff874251a3491d05 (diff) | |
ath9k_hw: fix and clean up PHY activation delay
The delay calculation is the same for all chips, however some parts of the
code missed the extra delay factor for half/quarter.
Clean up the code and move the delay calculation to a common place.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/hw.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/hw.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index 4dddffd7c40..e576a92f18a 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -191,6 +191,22 @@ bool ath9k_hw_wait(struct ath_hw *ah, u32 reg, u32 mask, u32 val, u32 timeout) } EXPORT_SYMBOL(ath9k_hw_wait); +void ath9k_hw_synth_delay(struct ath_hw *ah, struct ath9k_channel *chan, + int hw_delay) +{ + if (IS_CHAN_B(chan)) + hw_delay = (4 * hw_delay) / 22; + else + hw_delay /= 10; + + if (IS_CHAN_HALF_RATE(chan)) + hw_delay *= 2; + else if (IS_CHAN_QUARTER_RATE(chan)) + hw_delay *= 4; + + udelay(hw_delay + BASE_ACTIVATE_DELAY); +} + void ath9k_hw_write_array(struct ath_hw *ah, struct ar5416IniArray *array, int column, unsigned int *writecnt) { |