diff options
| author | Vasanthakumar Thiagarajan <vasanth@atheros.com> | 2011-04-21 13:03:27 (GMT) |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-04-25 18:50:16 (GMT) |
| commit | 788f6875fcf5d2bce221fbfd2318ac48df299031 (patch) | |
| tree | 933972db0fd520038b5e49701d2f2571e138b3c4 /drivers | |
| parent | ca45de77ad706e86b135b8564e21aa2c8a63f09b (diff) | |
| download | linux-788f6875fcf5d2bce221fbfd2318ac48df299031.tar.xz | |
ath9k: Fix bug in configuring hw timer
Hw next tigger time is configured as current_tsf + (timer_period * 10) which
is wrong, it should be current_tsf + timer_period. The wrong hw timer configuration
would cause btcoex related issues.
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/gpio.c | 6 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/hw.c | 13 |
2 files changed, 7 insertions, 12 deletions
diff --git a/drivers/net/wireless/ath/ath9k/gpio.c b/drivers/net/wireless/ath/ath9k/gpio.c index 44a0a88..cc5fad6 100644 --- a/drivers/net/wireless/ath/ath9k/gpio.c +++ b/drivers/net/wireless/ath/ath9k/gpio.c @@ -138,10 +138,10 @@ static void ath_detect_bt_priority(struct ath_softc *sc) static void ath9k_gen_timer_start(struct ath_hw *ah, struct ath_gen_timer *timer, - u32 timer_next, + u32 trig_timeout, u32 timer_period) { - ath9k_hw_gen_timer_start(ah, timer, timer_next, timer_period); + ath9k_hw_gen_timer_start(ah, timer, trig_timeout, timer_period); if ((ah->imask & ATH9K_INT_GENTIMER) == 0) { ath9k_hw_disable_interrupts(ah); @@ -195,7 +195,7 @@ static void ath_btcoex_period_timer(unsigned long data) timer_period = is_btscan ? btcoex->btscan_no_stomp : btcoex->btcoex_no_stomp; - ath9k_gen_timer_start(ah, btcoex->no_stomp_timer, 0, + ath9k_gen_timer_start(ah, btcoex->no_stomp_timer, timer_period, timer_period * 10); btcoex->hw_timer_enabled = true; } diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index 0fcfa59..577ca59 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -2430,11 +2430,11 @@ EXPORT_SYMBOL(ath_gen_timer_alloc); void ath9k_hw_gen_timer_start(struct ath_hw *ah, struct ath_gen_timer *timer, - u32 timer_next, + u32 trig_timeout, u32 timer_period) { struct ath_gen_timer_table *timer_table = &ah->hw_gen_timers; - u32 tsf; + u32 tsf, timer_next; BUG_ON(!timer_period); @@ -2442,18 +2442,13 @@ void ath9k_hw_gen_timer_start(struct ath_hw *ah, tsf = ath9k_hw_gettsf32(ah); + timer_next = tsf + trig_timeout; + ath_dbg(ath9k_hw_common(ah), ATH_DBG_HWTIMER, "current tsf %x period %x timer_next %x\n", tsf, timer_period, timer_next); /* - * Pull timer_next forward if the current TSF already passed it - * because of software latency - */ - if (timer_next < tsf) - timer_next = tsf + timer_period; - - /* * Program generic timer registers */ REG_WRITE(ah, gen_tmr_configuration[timer->index].next_addr, |