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authorFelix Fietkau <nbd@openwrt.org>2012-04-19 23:18:29 +0400
committerJohn W. Linville <linville@tuxdriver.com>2012-04-23 23:35:32 +0400
commit8d1bd2afc5142fd64d805fc1ca7ce59e09b4bd0d (patch)
treec34f5ae58b13297d1a755f34b59b9a9986d18760 /drivers/net
parentfeb7bc9951246157cb9043b9886c7919b32d3cb9 (diff)
downloadlinux-8d1bd2afc5142fd64d805fc1ca7ce59e09b4bd0d.tar.xz
ath9k_hw: increase tx abort timeout for half/quarter channels
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/wireless/ath/ath9k/mac.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath9k/mac.c b/drivers/net/wireless/ath/ath9k/mac.c
index f7bd2532269c..04ef775ccee1 100644
--- a/drivers/net/wireless/ath/ath9k/mac.c
+++ b/drivers/net/wireless/ath/ath9k/mac.c
@@ -133,8 +133,16 @@ EXPORT_SYMBOL(ath9k_hw_updatetxtriglevel);
void ath9k_hw_abort_tx_dma(struct ath_hw *ah)
{
+ int maxdelay = 1000;
int i, q;
+ if (ah->curchan) {
+ if (IS_CHAN_HALF_RATE(ah->curchan))
+ maxdelay *= 2;
+ else if (IS_CHAN_QUARTER_RATE(ah->curchan))
+ maxdelay *= 4;
+ }
+
REG_WRITE(ah, AR_Q_TXD, AR_Q_TXD_M);
REG_SET_BIT(ah, AR_PCU_MISC, AR_PCU_FORCE_QUIET_COLL | AR_PCU_CLEAR_VMF);
@@ -142,7 +150,7 @@ void ath9k_hw_abort_tx_dma(struct ath_hw *ah)
REG_SET_BIT(ah, AR_D_GBL_IFS_MISC, AR_D_GBL_IFS_MISC_IGNORE_BACKOFF);
for (q = 0; q < AR_NUM_QCU; q++) {
- for (i = 0; i < 1000; i++) {
+ for (i = 0; i < maxdelay; i++) {
if (i)
udelay(5);