From: Vasanthakumar Thiagarajan <vasanth@xxxxxxxxxxx>
Also move interrupt related code to mac.c. Worth noting is we
now enable TX interrupt mitigation for new shiny AR9003 family.
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@xxxxxxxxxxx>
Signed-off-by: Luis R. Rodriguez <lrodriguez@xxxxxxxxxxx>
---
drivers/net/wireless/ath/ath9k/ar9003_mac.c | 6 +
drivers/net/wireless/ath/ath9k/hw-ops.h | 5 +
drivers/net/wireless/ath/ath9k/hw.c | 284 +--------------------------
drivers/net/wireless/ath/ath9k/hw.h | 7 +-
drivers/net/wireless/ath/ath9k/mac.c | 290 +++++++++++++++++++++++++++
drivers/net/wireless/ath/ath9k/mac.h | 5 +
drivers/net/wireless/ath/ath9k/reg.h | 2 +
7 files changed, 313 insertions(+), 286 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mac.c b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
index b229597..15f1b0f 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
@@ -30,6 +30,11 @@ static void ar9003_hw_get_desc_link(void *ds, u32 **ds_link)
*ds_link = &((struct ar9003_txc *) ds)->link;
}
+static bool ar9003_hw_get_isr(struct ath_hw *ah, enum ath9k_int *masked)
+{
+ return true;
+}
+
void ar9003_hw_attach_mac_ops(struct ath_hw *hw)
{
struct ath_hw_ops *ops = ath9k_hw_ops(hw);
@@ -37,6 +42,7 @@ void ar9003_hw_attach_mac_ops(struct ath_hw *hw)
ops->rx_enable = ar9003_hw_rx_enable;
ops->set_desc_link = ar9003_hw_set_desc_link;
ops->get_desc_link = ar9003_hw_get_desc_link;
+ ops->get_isr = ar9003_hw_get_isr;
}
void ath9k_hw_set_rx_bufsize(struct ath_hw *ah, u16 buf_size)
diff --git a/drivers/net/wireless/ath/ath9k/hw-ops.h b/drivers/net/wireless/ath/ath9k/hw-ops.h
index bd40c0e..edb5abb 100644
--- a/drivers/net/wireless/ath/ath9k/hw-ops.h
+++ b/drivers/net/wireless/ath/ath9k/hw-ops.h
@@ -52,6 +52,11 @@ static inline bool ath9k_hw_calibrate(struct ath_hw *ah,
return ath9k_hw_ops(ah)->calibrate(ah, chan, rxchainmask, longcal);
}
+static inline bool ath9k_hw_getisr(struct ath_hw *ah, enum ath9k_int *masked)
+{
+ return ath9k_hw_ops(ah)->get_isr(ah, masked);
+}
+
/* Private hardware call ops */
/* PHY ops */
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 1343c7c..f8e7d40 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -385,6 +385,9 @@ static void ath9k_hw_init_config(struct ath_hw *ah)
ah->config.rx_intr_mitigation = true;
+ if (AR_SREV_9300_20_OR_LATER(ah))
+ ah->config.tx_intr_mitigation = true;
+
/*
* We need this for PCI devices only (Cardbus, PCI, miniPCI)
* _and_ if on non-uniprocessor systems (Multiprocessor/HT).
@@ -1812,287 +1815,6 @@ bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode)
}
EXPORT_SYMBOL(ath9k_hw_setpower);
-/**********************/
-/* Interrupt Handling */
-/**********************/
-
-bool ath9k_hw_intrpend(struct ath_hw *ah)
-{
- u32 host_isr;
-
- if (AR_SREV_9100(ah))
- return true;
-
- host_isr = REG_READ(ah, AR_INTR_ASYNC_CAUSE);
- if ((host_isr & AR_INTR_MAC_IRQ) && (host_isr != AR_INTR_SPURIOUS))
- return true;
-
- host_isr = REG_READ(ah, AR_INTR_SYNC_CAUSE);
- if ((host_isr & AR_INTR_SYNC_DEFAULT)
- && (host_isr != AR_INTR_SPURIOUS))
- return true;
-
- return false;
-}
-EXPORT_SYMBOL(ath9k_hw_intrpend);
-
-bool ath9k_hw_getisr(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;
- bool fatal_int = false;
- struct ath_common *common = ath9k_hw_common(ah);
-
- if (!AR_SREV_9100(ah)) {
- if (REG_READ(ah, AR_INTR_ASYNC_CAUSE) & AR_INTR_MAC_IRQ) {
- if ((REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M)
- == AR_RTC_STATUS_ON) {
- isr = REG_READ(ah, AR_ISR);
- }
- }
-
- sync_cause = REG_READ(ah, AR_INTR_SYNC_CAUSE) &
- AR_INTR_SYNC_DEFAULT;
-
- *masked = 0;
-
- if (!isr && !sync_cause)
- return false;
- } else {
- *masked = 0;
- isr = REG_READ(ah, AR_ISR);
- }
-
- if (isr) {
- if (isr & AR_ISR_BCNMISC) {
- u32 isr2;
- isr2 = REG_READ(ah, AR_ISR_S2);
- if (isr2 & AR_ISR_S2_TIM)
- mask2 |= ATH9K_INT_TIM;
- if (isr2 & AR_ISR_S2_DTIM)
- mask2 |= ATH9K_INT_DTIM;
- if (isr2 & AR_ISR_S2_DTIMSYNC)
- mask2 |= ATH9K_INT_DTIMSYNC;
- if (isr2 & (AR_ISR_S2_CABEND))
- mask2 |= ATH9K_INT_CABEND;
- if (isr2 & AR_ISR_S2_GTT)
- mask2 |= ATH9K_INT_GTT;
- if (isr2 & AR_ISR_S2_CST)
- mask2 |= ATH9K_INT_CST;
- if (isr2 & AR_ISR_S2_TSFOOR)
- mask2 |= ATH9K_INT_TSFOOR;
- }
-
- isr = REG_READ(ah, AR_ISR_RAC);
- if (isr == 0xffffffff) {
- *masked = 0;
- return false;
- }
-
- *masked = isr & ATH9K_INT_COMMON;
-
- if (ah->config.rx_intr_mitigation) {
- if (isr & (AR_ISR_RXMINTR | AR_ISR_RXINTM))
- *masked |= ATH9K_INT_RX;
- }
-
- if (isr & (AR_ISR_RXOK | AR_ISR_RXERR))
- *masked |= ATH9K_INT_RX;
- if (isr &
- (AR_ISR_TXOK | AR_ISR_TXDESC | AR_ISR_TXERR |
- AR_ISR_TXEOL)) {
- u32 s0_s, s1_s;
-
- *masked |= ATH9K_INT_TX;
-
- s0_s = REG_READ(ah, AR_ISR_S0_S);
- ah->intr_txqs |= MS(s0_s, AR_ISR_S0_QCU_TXOK);
- ah->intr_txqs |= MS(s0_s, AR_ISR_S0_QCU_TXDESC);
-
- s1_s = REG_READ(ah, AR_ISR_S1_S);
- ah->intr_txqs |= MS(s1_s, AR_ISR_S1_QCU_TXERR);
- ah->intr_txqs |= MS(s1_s, AR_ISR_S1_QCU_TXEOL);
- }
-
- if (isr & AR_ISR_RXORN) {
- ath_print(common, ATH_DBG_INTERRUPT,
- "receive FIFO overrun interrupt\n");
- }
-
- if (!AR_SREV_9100(ah)) {
- if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
- u32 isr5 = REG_READ(ah, AR_ISR_S5_S);
- if (isr5 & AR_ISR_S5_TIM_TIMER)
- *masked |= ATH9K_INT_TIM_TIMER;
- }
- }
-
- *masked |= mask2;
- }
-
- if (AR_SREV_9100(ah))
- return true;
-
- if (isr & AR_ISR_GENTMR) {
- u32 s5_s;
-
- s5_s = REG_READ(ah, AR_ISR_S5_S);
- if (isr & AR_ISR_GENTMR) {
- ah->intr_gen_timer_trigger =
- MS(s5_s, AR_ISR_S5_GENTIMER_TRIG);
-
- ah->intr_gen_timer_thresh =
- MS(s5_s, AR_ISR_S5_GENTIMER_THRESH);
-
- if (ah->intr_gen_timer_trigger)
- *masked |= ATH9K_INT_GENTIMER;
-
- }
- }
-
- if (sync_cause) {
- fatal_int =
- (sync_cause &
- (AR_INTR_SYNC_HOST1_FATAL | AR_INTR_SYNC_HOST1_PERR))
- ? true : false;
-
- if (fatal_int) {
- if (sync_cause & AR_INTR_SYNC_HOST1_FATAL) {
- ath_print(common, ATH_DBG_ANY,
- "received PCI FATAL interrupt\n");
- }
- if (sync_cause & AR_INTR_SYNC_HOST1_PERR) {
- ath_print(common, ATH_DBG_ANY,
- "received PCI PERR interrupt\n");
- }
- *masked |= ATH9K_INT_FATAL;
- }
- if (sync_cause & AR_INTR_SYNC_RADM_CPL_TIMEOUT) {
- ath_print(common, ATH_DBG_INTERRUPT,
- "AR_INTR_SYNC_RADM_CPL_TIMEOUT\n");
- REG_WRITE(ah, AR_RC, AR_RC_HOSTIF);
- REG_WRITE(ah, AR_RC, 0);
- *masked |= ATH9K_INT_FATAL;
- }
- if (sync_cause & AR_INTR_SYNC_LOCAL_TIMEOUT) {
- ath_print(common, ATH_DBG_INTERRUPT,
- "AR_INTR_SYNC_LOCAL_TIMEOUT\n");
- }
-
- REG_WRITE(ah, AR_INTR_SYNC_CAUSE_CLR, sync_cause);
- (void) REG_READ(ah, AR_INTR_SYNC_CAUSE_CLR);
- }
-
- return true;
-}
-EXPORT_SYMBOL(ath9k_hw_getisr);
-
-enum ath9k_int ath9k_hw_set_interrupts(struct ath_hw *ah, enum ath9k_int ints)
-{
- enum ath9k_int omask = ah->imask;
- u32 mask, mask2;
- struct ath9k_hw_capabilities *pCap = &ah->caps;
- struct ath_common *common = ath9k_hw_common(ah);
-
- ath_print(common, ATH_DBG_INTERRUPT, "0x%x => 0x%x\n", omask, ints);
-
- if (omask & ATH9K_INT_GLOBAL) {
- ath_print(common, ATH_DBG_INTERRUPT, "disable IER\n");
- REG_WRITE(ah, AR_IER, AR_IER_DISABLE);
- (void) REG_READ(ah, AR_IER);
- if (!AR_SREV_9100(ah)) {
- REG_WRITE(ah, AR_INTR_ASYNC_ENABLE, 0);
- (void) REG_READ(ah, AR_INTR_ASYNC_ENABLE);
-
- REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0);
- (void) REG_READ(ah, AR_INTR_SYNC_ENABLE);
- }
- }
-
- mask = ints & ATH9K_INT_COMMON;
- mask2 = 0;
-
- if (ints & ATH9K_INT_TX) {
- if (ah->txok_interrupt_mask)
- mask |= AR_IMR_TXOK;
- if (ah->txdesc_interrupt_mask)
- mask |= AR_IMR_TXDESC;
- if (ah->txerr_interrupt_mask)
- mask |= AR_IMR_TXERR;
- if (ah->txeol_interrupt_mask)
- mask |= AR_IMR_TXEOL;
- }
- if (ints & ATH9K_INT_RX) {
- mask |= AR_IMR_RXERR;
- if (ah->config.rx_intr_mitigation)
- mask |= AR_IMR_RXMINTR | AR_IMR_RXINTM;
- else
- mask |= AR_IMR_RXOK | AR_IMR_RXDESC;
- if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP))
- mask |= AR_IMR_GENTMR;
- }
-
- if (ints & (ATH9K_INT_BMISC)) {
- mask |= AR_IMR_BCNMISC;
- if (ints & ATH9K_INT_TIM)
- mask2 |= AR_IMR_S2_TIM;
- if (ints & ATH9K_INT_DTIM)
- mask2 |= AR_IMR_S2_DTIM;
- if (ints & ATH9K_INT_DTIMSYNC)
- mask2 |= AR_IMR_S2_DTIMSYNC;
- if (ints & ATH9K_INT_CABEND)
- mask2 |= AR_IMR_S2_CABEND;
- if (ints & ATH9K_INT_TSFOOR)
- mask2 |= AR_IMR_S2_TSFOOR;
- }
-
- if (ints & (ATH9K_INT_GTT | ATH9K_INT_CST)) {
- mask |= AR_IMR_BCNMISC;
- if (ints & ATH9K_INT_GTT)
- mask2 |= AR_IMR_S2_GTT;
- if (ints & ATH9K_INT_CST)
- mask2 |= AR_IMR_S2_CST;
- }
-
- ath_print(common, ATH_DBG_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 |= mask2;
- REG_WRITE(ah, AR_IMR_S2, ah->imrs2_reg);
-
- if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
- if (ints & ATH9K_INT_TIM_TIMER)
- REG_SET_BIT(ah, AR_IMR_S5, AR_IMR_S5_TIM_TIMER);
- else
- REG_CLR_BIT(ah, AR_IMR_S5, AR_IMR_S5_TIM_TIMER);
- }
-
- if (ints & ATH9K_INT_GLOBAL) {
- ath_print(common, ATH_DBG_INTERRUPT, "enable IER\n");
- REG_WRITE(ah, AR_IER, AR_IER_ENABLE);
- if (!AR_SREV_9100(ah)) {
- REG_WRITE(ah, AR_INTR_ASYNC_ENABLE,
- AR_INTR_MAC_IRQ);
- REG_WRITE(ah, AR_INTR_ASYNC_MASK, AR_INTR_MAC_IRQ);
-
-
- REG_WRITE(ah, AR_INTR_SYNC_ENABLE,
- AR_INTR_SYNC_DEFAULT);
- REG_WRITE(ah, AR_INTR_SYNC_MASK,
- AR_INTR_SYNC_DEFAULT);
- }
- ath_print(common, ATH_DBG_INTERRUPT, "AR_IMR 0x%x IER 0x%x\n",
- REG_READ(ah, AR_IMR), REG_READ(ah, AR_IER));
- }
-
- return omask;
-}
-EXPORT_SYMBOL(ath9k_hw_set_interrupts);
-
/*******************/
/* Beacon Handling */
/*******************/
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 8feca6b..1e95144 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -228,6 +228,7 @@ struct ath9k_ops_config {
u32 enable_ani;
int serialize_regmode;
bool rx_intr_mitigation;
+ bool tx_intr_mitigation;
#define SPUR_DISABLE 0
#define SPUR_ENABLE_IOCTL 1
#define SPUR_ENABLE_EEPROM 2
@@ -544,6 +545,7 @@ struct ath_hw_ops {
struct ath9k_channel *chan,
u8 rxchainmask,
bool longcal);
+ bool (*get_isr)(struct ath_hw *ah, enum ath9k_int *masked);
};
struct ath_hw {
@@ -804,11 +806,6 @@ void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah,
bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode);
-/* Interrupt Handling */
-bool ath9k_hw_intrpend(struct ath_hw *ah);
-bool ath9k_hw_getisr(struct ath_hw *ah, enum ath9k_int *masked);
-enum ath9k_int ath9k_hw_set_interrupts(struct ath_hw *ah, enum ath9k_int ints);
-
/* Generic hw timer primitives */
struct ath_gen_timer *ath_gen_timer_alloc(struct ath_hw *ah,
void (*trigger)(void *),
diff --git a/drivers/net/wireless/ath/ath9k/mac.c b/drivers/net/wireless/ath/ath9k/mac.c
index d620398..8e81c7a 100644
--- a/drivers/net/wireless/ath/ath9k/mac.c
+++ b/drivers/net/wireless/ath/ath9k/mac.c
@@ -31,6 +31,158 @@ static void ar9002_hw_get_desc_link(void *ds, u32 **ds_link)
*ds_link = &((struct ath_desc *)ds)->ds_link;
}
+static bool ar9002_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;
+ bool fatal_int = false;
+ struct ath_common *common = ath9k_hw_common(ah);
+
+ if (!AR_SREV_9100(ah)) {
+ if (REG_READ(ah, AR_INTR_ASYNC_CAUSE) & AR_INTR_MAC_IRQ) {
+ if ((REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M)
+ == AR_RTC_STATUS_ON) {
+ isr = REG_READ(ah, AR_ISR);
+ }
+ }
+
+ sync_cause = REG_READ(ah, AR_INTR_SYNC_CAUSE) &
+ AR_INTR_SYNC_DEFAULT;
+
+ *masked = 0;
+
+ if (!isr && !sync_cause)
+ return false;
+ } else {
+ *masked = 0;
+ isr = REG_READ(ah, AR_ISR);
+ }
+
+ if (isr) {
+ if (isr & AR_ISR_BCNMISC) {
+ u32 isr2;
+ isr2 = REG_READ(ah, AR_ISR_S2);
+ if (isr2 & AR_ISR_S2_TIM)
+ mask2 |= ATH9K_INT_TIM;
+ if (isr2 & AR_ISR_S2_DTIM)
+ mask2 |= ATH9K_INT_DTIM;
+ if (isr2 & AR_ISR_S2_DTIMSYNC)
+ mask2 |= ATH9K_INT_DTIMSYNC;
+ if (isr2 & (AR_ISR_S2_CABEND))
+ mask2 |= ATH9K_INT_CABEND;
+ if (isr2 & AR_ISR_S2_GTT)
+ mask2 |= ATH9K_INT_GTT;
+ if (isr2 & AR_ISR_S2_CST)
+ mask2 |= ATH9K_INT_CST;
+ if (isr2 & AR_ISR_S2_TSFOOR)
+ mask2 |= ATH9K_INT_TSFOOR;
+ }
+
+ isr = REG_READ(ah, AR_ISR_RAC);
+ if (isr == 0xffffffff) {
+ *masked = 0;
+ return false;
+ }
+
+ *masked = isr & ATH9K_INT_COMMON;
+
+ if (ah->config.rx_intr_mitigation) {
+ if (isr & (AR_ISR_RXMINTR | AR_ISR_RXINTM))
+ *masked |= ATH9K_INT_RX;
+ }
+
+ if (isr & (AR_ISR_RXOK | AR_ISR_RXERR))
+ *masked |= ATH9K_INT_RX;
+ if (isr &
+ (AR_ISR_TXOK | AR_ISR_TXDESC | AR_ISR_TXERR |
+ AR_ISR_TXEOL)) {
+ u32 s0_s, s1_s;
+
+ *masked |= ATH9K_INT_TX;
+
+ s0_s = REG_READ(ah, AR_ISR_S0_S);
+ ah->intr_txqs |= MS(s0_s, AR_ISR_S0_QCU_TXOK);
+ ah->intr_txqs |= MS(s0_s, AR_ISR_S0_QCU_TXDESC);
+
+ s1_s = REG_READ(ah, AR_ISR_S1_S);
+ ah->intr_txqs |= MS(s1_s, AR_ISR_S1_QCU_TXERR);
+ ah->intr_txqs |= MS(s1_s, AR_ISR_S1_QCU_TXEOL);
+ }
+
+ if (isr & AR_ISR_RXORN) {
+ ath_print(common, ATH_DBG_INTERRUPT,
+ "receive FIFO overrun interrupt\n");
+ }
+
+ if (!AR_SREV_9100(ah)) {
+ if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
+ u32 isr5 = REG_READ(ah, AR_ISR_S5_S);
+ if (isr5 & AR_ISR_S5_TIM_TIMER)
+ *masked |= ATH9K_INT_TIM_TIMER;
+ }
+ }
+
+ *masked |= mask2;
+ }
+
+ if (AR_SREV_9100(ah))
+ return true;
+
+ if (isr & AR_ISR_GENTMR) {
+ u32 s5_s;
+
+ s5_s = REG_READ(ah, AR_ISR_S5_S);
+ if (isr & AR_ISR_GENTMR) {
+ ah->intr_gen_timer_trigger =
+ MS(s5_s, AR_ISR_S5_GENTIMER_TRIG);
+
+ ah->intr_gen_timer_thresh =
+ MS(s5_s, AR_ISR_S5_GENTIMER_THRESH);
+
+ if (ah->intr_gen_timer_trigger)
+ *masked |= ATH9K_INT_GENTIMER;
+
+ }
+ }
+
+ if (sync_cause) {
+ fatal_int =
+ (sync_cause &
+ (AR_INTR_SYNC_HOST1_FATAL | AR_INTR_SYNC_HOST1_PERR))
+ ? true : false;
+
+ if (fatal_int) {
+ if (sync_cause & AR_INTR_SYNC_HOST1_FATAL) {
+ ath_print(common, ATH_DBG_ANY,
+ "received PCI FATAL interrupt\n");
+ }
+ if (sync_cause & AR_INTR_SYNC_HOST1_PERR) {
+ ath_print(common, ATH_DBG_ANY,
+ "received PCI PERR interrupt\n");
+ }
+ *masked |= ATH9K_INT_FATAL;
+ }
+ if (sync_cause & AR_INTR_SYNC_RADM_CPL_TIMEOUT) {
+ ath_print(common, ATH_DBG_INTERRUPT,
+ "AR_INTR_SYNC_RADM_CPL_TIMEOUT\n");
+ REG_WRITE(ah, AR_RC, AR_RC_HOSTIF);
+ REG_WRITE(ah, AR_RC, 0);
+ *masked |= ATH9K_INT_FATAL;
+ }
+ if (sync_cause & AR_INTR_SYNC_LOCAL_TIMEOUT) {
+ ath_print(common, ATH_DBG_INTERRUPT,
+ "AR_INTR_SYNC_LOCAL_TIMEOUT\n");
+ }
+
+ REG_WRITE(ah, AR_INTR_SYNC_CAUSE_CLR, sync_cause);
+ (void) REG_READ(ah, AR_INTR_SYNC_CAUSE_CLR);
+ }
+
+ return true;
+}
+
void ar9002_hw_attach_mac_ops(struct ath_hw *ah)
{
struct ath_hw_ops *ops = ath9k_hw_ops(ah);
@@ -38,6 +190,7 @@ void ar9002_hw_attach_mac_ops(struct ath_hw *ah)
ops->rx_enable = ar9002_hw_rx_enable;
ops->set_desc_link = ar9002_hw_set_desc_link;
ops->get_desc_link = ar9002_hw_get_desc_link;
+ ops->get_isr = ar9002_hw_get_isr;
}
static void ath9k_hw_set_txq_interrupts(struct ath_hw *ah,
@@ -1090,3 +1243,140 @@ int ath9k_hw_beaconq_setup(struct ath_hw *ah)
return ath9k_hw_setuptxqueue(ah, ATH9K_TX_QUEUE_BEACON, &qi);
}
EXPORT_SYMBOL(ath9k_hw_beaconq_setup);
+
+bool ath9k_hw_intrpend(struct ath_hw *ah)
+{
+ u32 host_isr;
+
+ if (AR_SREV_9100(ah))
+ return true;
+
+ host_isr = REG_READ(ah, AR_INTR_ASYNC_CAUSE);
+ if ((host_isr & AR_INTR_MAC_IRQ) && (host_isr != AR_INTR_SPURIOUS))
+ return true;
+
+ host_isr = REG_READ(ah, AR_INTR_SYNC_CAUSE);
+ if ((host_isr & AR_INTR_SYNC_DEFAULT)
+ && (host_isr != AR_INTR_SPURIOUS))
+ return true;
+
+ return false;
+}
+EXPORT_SYMBOL(ath9k_hw_intrpend);
+
+enum ath9k_int ath9k_hw_set_interrupts(struct ath_hw *ah,
+ enum ath9k_int ints)
+{
+ enum ath9k_int omask = ah->imask;
+ u32 mask, mask2;
+ struct ath9k_hw_capabilities *pCap = &ah->caps;
+ struct ath_common *common = ath9k_hw_common(ah);
+
+ ath_print(common, ATH_DBG_INTERRUPT, "0x%x => 0x%x\n", omask, ints);
+
+ if (omask & ATH9K_INT_GLOBAL) {
+ ath_print(common, ATH_DBG_INTERRUPT, "disable IER\n");
+ REG_WRITE(ah, AR_IER, AR_IER_DISABLE);
+ (void) REG_READ(ah, AR_IER);
+ if (!AR_SREV_9100(ah)) {
+ REG_WRITE(ah, AR_INTR_ASYNC_ENABLE, 0);
+ (void) REG_READ(ah, AR_INTR_ASYNC_ENABLE);
+
+ REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0);
+ (void) REG_READ(ah, AR_INTR_SYNC_ENABLE);
+ }
+ }
+
+ /* TODO: global int Ref count */
+ mask = ints & ATH9K_INT_COMMON;
+ mask2 = 0;
+
+ if (ints & ATH9K_INT_TX) {
+ if (ah->config.tx_intr_mitigation)
+ mask |= AR_IMR_TXMINTR | AR_IMR_TXINTM;
+ if (ah->txok_interrupt_mask)
+ mask |= AR_IMR_TXOK;
+ if (ah->txdesc_interrupt_mask)
+ mask |= AR_IMR_TXDESC;
+ if (ah->txerr_interrupt_mask)
+ mask |= AR_IMR_TXERR;
+ if (ah->txeol_interrupt_mask)
+ mask |= AR_IMR_TXEOL;
+ }
+ if (ints & ATH9K_INT_RX) {
+ if (AR_SREV_9300_20_OR_LATER(ah)) {
+ mask |= AR_IMR_RXERR | AR_IMR_RXOK_HP;
+ if (ah->config.rx_intr_mitigation) {
+ mask &= ~AR_IMR_RXOK_LP;
+ mask |= AR_IMR_RXMINTR | AR_IMR_RXINTM;
+ } else {
+ mask |= AR_IMR_RXOK_LP;
+ }
+ } else {
+ if (ah->config.rx_intr_mitigation)
+ mask |= AR_IMR_RXMINTR | AR_IMR_RXINTM;
+ else
+ mask |= AR_IMR_RXOK | AR_IMR_RXDESC;
+ }
+ if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP))
+ mask |= AR_IMR_GENTMR;
+ }
+
+ if (ints & (ATH9K_INT_BMISC)) {
+ mask |= AR_IMR_BCNMISC;
+ if (ints & ATH9K_INT_TIM)
+ mask2 |= AR_IMR_S2_TIM;
+ if (ints & ATH9K_INT_DTIM)
+ mask2 |= AR_IMR_S2_DTIM;
+ if (ints & ATH9K_INT_DTIMSYNC)
+ mask2 |= AR_IMR_S2_DTIMSYNC;
+ if (ints & ATH9K_INT_CABEND)
+ mask2 |= AR_IMR_S2_CABEND;
+ if (ints & ATH9K_INT_TSFOOR)
+ mask2 |= AR_IMR_S2_TSFOOR;
+ }
+
+ if (ints & (ATH9K_INT_GTT | ATH9K_INT_CST)) {
+ mask |= AR_IMR_BCNMISC;
+ if (ints & ATH9K_INT_GTT)
+ mask2 |= AR_IMR_S2_GTT;
+ if (ints & ATH9K_INT_CST)
+ mask2 |= AR_IMR_S2_CST;
+ }
+
+ ath_print(common, ATH_DBG_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 |= mask2;
+ REG_WRITE(ah, AR_IMR_S2, ah->imrs2_reg);
+
+ if (!(pCap->hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
+ if (ints & ATH9K_INT_TIM_TIMER)
+ REG_SET_BIT(ah, AR_IMR_S5, AR_IMR_S5_TIM_TIMER);
+ else
+ REG_CLR_BIT(ah, AR_IMR_S5, AR_IMR_S5_TIM_TIMER);
+ }
+
+ if (ints & ATH9K_INT_GLOBAL) {
+ ath_print(common, ATH_DBG_INTERRUPT, "enable IER\n");
+ REG_WRITE(ah, AR_IER, AR_IER_ENABLE);
+ if (!AR_SREV_9100(ah)) {
+ REG_WRITE(ah, AR_INTR_ASYNC_ENABLE,
+ AR_INTR_MAC_IRQ);
+ REG_WRITE(ah, AR_INTR_ASYNC_MASK, AR_INTR_MAC_IRQ);
+
+
+ REG_WRITE(ah, AR_INTR_SYNC_ENABLE,
+ AR_INTR_SYNC_DEFAULT);
+ REG_WRITE(ah, AR_INTR_SYNC_MASK,
+ AR_INTR_SYNC_DEFAULT);
+ }
+ ath_print(common, ATH_DBG_INTERRUPT, "AR_IMR 0x%x IER 0x%x\n",
+ REG_READ(ah, AR_IMR), REG_READ(ah, AR_IER));
+ }
+
+ return omask;
+}
+EXPORT_SYMBOL(ath9k_hw_set_interrupts);
diff --git a/drivers/net/wireless/ath/ath9k/mac.h b/drivers/net/wireless/ath/ath9k/mac.h
index 99f81eb..7c0d754 100644
--- a/drivers/net/wireless/ath/ath9k/mac.h
+++ b/drivers/net/wireless/ath/ath9k/mac.h
@@ -736,6 +736,11 @@ void ath9k_hw_stoppcurecv(struct ath_hw *ah);
bool ath9k_hw_stopdmarecv(struct ath_hw *ah);
int ath9k_hw_beaconq_setup(struct ath_hw *ah);
+/* Interrupt Handling */
+bool ath9k_hw_intrpend(struct ath_hw *ah);
+enum ath9k_int ath9k_hw_set_interrupts(struct ath_hw *ah,
+ enum ath9k_int ints);
+
void ar9002_hw_attach_mac_ops(struct ath_hw *ah);
#endif /* MAC_H */
diff --git a/drivers/net/wireless/ath/ath9k/reg.h b/drivers/net/wireless/ath/ath9k/reg.h
index 96b2cfe..7f85633 100644
--- a/drivers/net/wireless/ath/ath9k/reg.h
+++ b/drivers/net/wireless/ath/ath9k/reg.h
@@ -253,6 +253,8 @@
#define AR_IMR 0x00a0
#define AR_IMR_RXOK 0x00000001
#define AR_IMR_RXDESC 0x00000002
+#define AR_IMR_RXOK_HP 0x00000001
+#define AR_IMR_RXOK_LP 0x00000002
#define AR_IMR_RXERR 0x00000004
#define AR_IMR_RXNOPKT 0x00000008
#define AR_IMR_RXEOL 0x00000010
--
1.6.3.3
--
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