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ath9k_hw: check for MCI interrupt in get_isr

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check for the condition of MCI interrupt being triggered and
appropriately obtain the values of MCI_INTERRUPT_RX_MSG_RAW and
MCI_INTERRUPT_RAW

Cc: Wilson Tsao <wtsao@qca.qualcomm.com>
Cc: Senthil Balasubramanian <senthilb@qca.qualcomm.com>
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Mohammed Shafi Shajakhan 2011-11-30 10:41:21 +05:30 committed by John W. Linville
parent e35848134c
commit 4421d30ffa
1 changed files with 34 additions and 2 deletions
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36
drivers/net/wireless/ath/ath9k/ar9003_mac.c
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@ -175,15 +175,47 @@ static bool ar9003_hw_get_isr(struct ath_hw *ah, enum ath9k_int *masked)
u32 isr = 0;
u32 mask2 = 0;
struct ath9k_hw_capabilities *pCap = &ah->caps;
u32 sync_cause = 0;
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
u32 sync_cause = 0, async_cause;
if (REG_READ(ah, AR_INTR_ASYNC_CAUSE) & AR_INTR_MAC_IRQ) {
async_cause = REG_READ(ah, AR_INTR_ASYNC_CAUSE);
if (async_cause & (AR_INTR_MAC_IRQ | AR_INTR_ASYNC_MASK_MCI)) {
if ((REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M)
== AR_RTC_STATUS_ON)
isr = REG_READ(ah, AR_ISR);
}
if (async_cause & AR_INTR_ASYNC_MASK_MCI) {
u32 raw_intr, rx_msg_intr;
rx_msg_intr = REG_READ(ah, AR_MCI_INTERRUPT_RX_MSG_RAW);
raw_intr = REG_READ(ah, AR_MCI_INTERRUPT_RAW);
if ((raw_intr == 0xdeadbeef) || (rx_msg_intr == 0xdeadbeef))
ath_dbg(common, ATH_DBG_MCI,
"MCI gets 0xdeadbeef during MCI int processing"
"new raw_intr=0x%08x, new rx_msg_raw=0x%08x, "
"raw_intr=0x%08x, rx_msg_raw=0x%08x\n",
raw_intr, rx_msg_intr, mci->raw_intr,
mci->rx_msg_intr);
else {
mci->rx_msg_intr |= rx_msg_intr;
mci->raw_intr |= raw_intr;
*masked |= ATH9K_INT_MCI;
if (rx_msg_intr & AR_MCI_INTERRUPT_RX_MSG_CONT_INFO)
mci->cont_status =
REG_READ(ah, AR_MCI_CONT_STATUS);
REG_WRITE(ah, AR_MCI_INTERRUPT_RX_MSG_RAW, rx_msg_intr);
REG_WRITE(ah, AR_MCI_INTERRUPT_RAW, raw_intr);
ath_dbg(common, ATH_DBG_MCI, "AR_INTR_SYNC_MCI\n");
}
}
sync_cause = REG_READ(ah, AR_INTR_SYNC_CAUSE) & AR_INTR_SYNC_DEFAULT;
*masked = 0;