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ath9k: Fix baseband watchdog interrupts

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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>
This commit is contained in:
Sujith Manoharan 2013-12-24 10:44:22 +05:30 committed by John W. Linville
parent a7abaf7da9
commit a6bb860be4
3 changed files with 27 additions and 6 deletions
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24
drivers/net/wireless/ath/ath9k/mac.c
View File

@ -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);

8
drivers/net/wireless/ath/ath9k/main.c
View File

@ -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)

1
drivers/net/wireless/ath/ath9k/reg.h
View File

@ -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