From: Vasanthakumar Thiagarajan <vasanth@atheros.com>
To: <linville@tuxdriver.com>
Cc: <linux-wireless@vger.kernel.org>
Subject: [PATCH 21/22] ath9k_hw: Disable INTR_HOST1_FATAL to avoid interrupt strom with ar9430
Date: Tue, 12 Apr 2011 18:47:52 +0530 [thread overview]
Message-ID: <1302614273-2063-12-git-send-email-vasanth@atheros.com> (raw)
In-Reply-To: <1302614273-2063-1-git-send-email-vasanth@atheros.com>
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
---
drivers/net/wireless/ath/ath9k/hw.c | 6 +++++-
drivers/net/wireless/ath/ath9k/mac.c | 10 ++++++----
2 files changed, 11 insertions(+), 5 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index aaf7f7a..072e0eb 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -804,12 +804,16 @@ static void ath9k_hw_init_pll(struct ath_hw *ah,
static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah,
enum nl80211_iftype opmode)
{
+ u32 sync_default = AR_INTR_SYNC_DEFAULT;
u32 imr_reg = AR_IMR_TXERR |
AR_IMR_TXURN |
AR_IMR_RXERR |
AR_IMR_RXORN |
AR_IMR_BCNMISC;
+ if (AR_SREV_9340(ah))
+ sync_default &= ~AR_INTR_SYNC_HOST1_FATAL;
+
if (AR_SREV_9300_20_OR_LATER(ah)) {
imr_reg |= AR_IMR_RXOK_HP;
if (ah->config.rx_intr_mitigation)
@@ -840,7 +844,7 @@ static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah,
if (!AR_SREV_9100(ah)) {
REG_WRITE(ah, AR_INTR_SYNC_CAUSE, 0xFFFFFFFF);
- REG_WRITE(ah, AR_INTR_SYNC_ENABLE, AR_INTR_SYNC_DEFAULT);
+ REG_WRITE(ah, AR_INTR_SYNC_ENABLE, sync_default);
REG_WRITE(ah, AR_INTR_SYNC_MASK, 0);
}
diff --git a/drivers/net/wireless/ath/ath9k/mac.c b/drivers/net/wireless/ath/ath9k/mac.c
index 6f431cb..d86b839 100644
--- a/drivers/net/wireless/ath/ath9k/mac.c
+++ b/drivers/net/wireless/ath/ath9k/mac.c
@@ -793,10 +793,14 @@ EXPORT_SYMBOL(ath9k_hw_disable_interrupts);
void ath9k_hw_enable_interrupts(struct ath_hw *ah)
{
struct ath_common *common = ath9k_hw_common(ah);
+ u32 sync_default = AR_INTR_SYNC_DEFAULT;
if (!(ah->imask & ATH9K_INT_GLOBAL))
return;
+ if (AR_SREV_9340(ah))
+ sync_default &= ~AR_INTR_SYNC_HOST1_FATAL;
+
ath_dbg(common, ATH_DBG_INTERRUPT, "enable IER\n");
REG_WRITE(ah, AR_IER, AR_IER_ENABLE);
if (!AR_SREV_9100(ah)) {
@@ -805,10 +809,8 @@ void ath9k_hw_enable_interrupts(struct ath_hw *ah)
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);
+ REG_WRITE(ah, AR_INTR_SYNC_ENABLE, sync_default);
+ REG_WRITE(ah, AR_INTR_SYNC_MASK, sync_default);
}
ath_dbg(common, ATH_DBG_INTERRUPT, "AR_IMR 0x%x IER 0x%x\n",
REG_READ(ah, AR_IMR), REG_READ(ah, AR_IER));
--
1.7.0.4
next prev parent reply other threads:[~2011-04-12 13:18 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-12 13:17 [PATCH 03/22] ath9k_hw: Introduce a bool for 25mhz clock and populate it Vasanthakumar Thiagarajan
2011-04-12 13:17 ` [PATCH 04/22] ath9k_hw: Configure pll control register accordingly for AR9340 Vasanthakumar Thiagarajan
2011-04-12 13:17 ` [PATCH 06/22] ath9k_hw: Initialize mode registers from initvals.h " Vasanthakumar Thiagarajan
2011-04-12 13:17 ` [PATCH 07/22] ath9k_hw: Don't do ani initialization " Vasanthakumar Thiagarajan
2011-04-12 13:17 ` [PATCH 09/22] ath9k_hw: Read spur frequency information from eeprom " Vasanthakumar Thiagarajan
2011-04-12 13:17 ` [PATCH 10/22] ath9k_hw: Configure RF channel freqency " Vasanthakumar Thiagarajan
2011-04-12 13:17 ` [PATCH 11/22] ath9k_hw: Clean up rx/tx chain configuration before AGC/IQ cal Vasanthakumar Thiagarajan
2011-04-12 13:17 ` [PATCH 14/22] ath9k_hw: Skip internal regulator configuration for AR9340 Vasanthakumar Thiagarajan
2011-04-12 13:17 ` [PATCH 15/22] ath9k_hw: Configure tuning capacitance value for AR9340 as well Vasanthakumar Thiagarajan
2011-04-12 13:17 ` [PATCH 17/22] ath9k_hw: Configure chain switch table and attenuation control only for active chains Vasanthakumar Thiagarajan
2011-04-12 13:17 ` [PATCH 18/22] ath9k_hw: Read iq calibration data " Vasanthakumar Thiagarajan
2011-04-12 13:17 ` Vasanthakumar Thiagarajan [this message]
2011-04-12 13:17 ` [PATCH 22/22] ath9k_hw: Enable AR9340 support Vasanthakumar Thiagarajan
2011-04-12 13:50 ` [PATCH 03/22] ath9k_hw: Introduce a bool for 25mhz clock and populate it Felix Fietkau
2011-04-12 14:00 ` Vasanthakumar Thiagarajan
2011-04-12 14:33 ` Vasanthakumar Thiagarajan
2011-04-12 14:51 ` John W. Linville
2011-04-19 5:49 ` Vasanthakumar Thiagarajan
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