diff options
| author | Sujith Manoharan <c_manoha@qca.qualcomm.com> | 2013-12-24 10:44:22 +0530 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2014-01-03 15:36:57 -0500 |
| commit | a6bb860be4808d994410a0d945b351e5b56046e9 (patch) | |
| tree | 8e54de3d8466adf99643e27eec60bd246b8986bd | |
| parent | a7abaf7da975ecac58e22bae75605b2a1d8e7ff0 (diff) | |
ath9k: Fix baseband watchdog interrupts
Program the required baseband watchdog interrupt
mask to ensure that the correct watchdog interrupts
are raised when the BB is hung for some reason.
Also, use the capability HW_BB_WATCHDOG instead of
relying on other flags.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/mac.c | 24 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/main.c | 8 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/reg.h | 1 |
3 files changed, 27 insertions, 6 deletions
diff --git a/drivers/net/wireless/ath/ath9k/mac.c b/drivers/net/wireless/ath/ath9k/mac.c index 89d7e206992..5f727588ca2 100644 --- a/drivers/net/wireless/ath/ath9k/mac.c +++ b/drivers/net/wireless/ath/ath9k/mac.c @@ -922,11 +922,29 @@ void ath9k_hw_set_interrupts(struct ath_hw *ah) mask2 |= AR_IMR_S2_CST; } + if (ah->config.hw_hang_checks & HW_BB_WATCHDOG) { + if (ints & ATH9K_INT_BB_WATCHDOG) { + mask |= AR_IMR_BCNMISC; + mask2 |= AR_IMR_S2_BB_WATCHDOG; + } + } + ath_dbg(common, INTERRUPT, "new IMR 0x%x\n", mask); REG_WRITE(ah, AR_IMR, mask); - ah->imrs2_reg &= ~(AR_IMR_S2_TIM | AR_IMR_S2_DTIM | AR_IMR_S2_DTIMSYNC | - AR_IMR_S2_CABEND | AR_IMR_S2_CABTO | - AR_IMR_S2_TSFOOR | AR_IMR_S2_GTT | AR_IMR_S2_CST); + ah->imrs2_reg &= ~(AR_IMR_S2_TIM | + AR_IMR_S2_DTIM | + AR_IMR_S2_DTIMSYNC | + AR_IMR_S2_CABEND | + AR_IMR_S2_CABTO | + AR_IMR_S2_TSFOOR | + AR_IMR_S2_GTT | + AR_IMR_S2_CST); + + if (ah->config.hw_hang_checks & HW_BB_WATCHDOG) { + if (ints & ATH9K_INT_BB_WATCHDOG) + ah->imrs2_reg &= ~AR_IMR_S2_BB_WATCHDOG; + } + ah->imrs2_reg |= mask2; REG_WRITE(ah, AR_IMR_S2, ah->imrs2_reg); diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index ba00a319481..1fd69de7902 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -587,7 +587,7 @@ irqreturn_t ath_isr(int irq, void *dev) !(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA))) goto chip_reset; - if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) && + if ((ah->config.hw_hang_checks & HW_BB_WATCHDOG) && (status & ATH9K_INT_BB_WATCHDOG)) { spin_lock(&common->cc_lock); @@ -726,11 +726,13 @@ static int ath9k_start(struct ieee80211_hw *hw) if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) ah->imask |= ATH9K_INT_RXHP | - ATH9K_INT_RXLP | - ATH9K_INT_BB_WATCHDOG; + ATH9K_INT_RXLP; else ah->imask |= ATH9K_INT_RX; + if (ah->config.hw_hang_checks & HW_BB_WATCHDOG) + ah->imask |= ATH9K_INT_BB_WATCHDOG; + ah->imask |= ATH9K_INT_GTT; if (ah->caps.hw_caps & ATH9K_HW_CAP_HT) diff --git a/drivers/net/wireless/ath/ath9k/reg.h b/drivers/net/wireless/ath/ath9k/reg.h index 9ad007312c9..c9a8b777749 100644 --- a/drivers/net/wireless/ath/ath9k/reg.h +++ b/drivers/net/wireless/ath/ath9k/reg.h @@ -304,6 +304,7 @@ #define AR_IMR_S2 0x00ac #define AR_IMR_S2_QCU_TXURN 0x000003FF #define AR_IMR_S2_QCU_TXURN_S 0 +#define AR_IMR_S2_BB_WATCHDOG 0x00010000 #define AR_IMR_S2_CST 0x00400000 #define AR_IMR_S2_GTT 0x00800000 #define AR_IMR_S2_TIM 0x01000000 |