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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6

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This commit is contained in:
John W. Linville
2011-04-26 15:39:10 -04:00
parent 9835a30e98 069f40fc07
commit 429576b97c
23 changed files with 86 additions and 72 deletions
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25
drivers/net/wireless/ath/ath9k/mac.c
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@@ -710,27 +710,46 @@ void ath9k_hw_abortpcurecv(struct ath_hw *ah)
}
EXPORT_SYMBOL(ath9k_hw_abortpcurecv);
bool ath9k_hw_stopdmarecv(struct ath_hw *ah)
bool ath9k_hw_stopdmarecv(struct ath_hw *ah, bool *reset)
{
#define AH_RX_STOP_DMA_TIMEOUT 10000 /* usec */
struct ath_common *common = ath9k_hw_common(ah);
u32 mac_status, last_mac_status = 0;
int i;
/* Enable access to the DMA observation bus */
REG_WRITE(ah, AR_MACMISC,
((AR_MACMISC_DMA_OBS_LINE_8 << AR_MACMISC_DMA_OBS_S) |
(AR_MACMISC_MISC_OBS_BUS_1 <<
AR_MACMISC_MISC_OBS_BUS_MSB_S)));
REG_WRITE(ah, AR_CR, AR_CR_RXD);
/* Wait for rx enable bit to go low */
for (i = AH_RX_STOP_DMA_TIMEOUT / AH_TIME_QUANTUM; i != 0; i--) {
if ((REG_READ(ah, AR_CR) & AR_CR_RXE) == 0)
break;
if (!AR_SREV_9300_20_OR_LATER(ah)) {
mac_status = REG_READ(ah, AR_DMADBG_7) & 0x7f0;
if (mac_status == 0x1c0 && mac_status == last_mac_status) {
*reset = true;
break;
}
last_mac_status = mac_status;
}
udelay(AH_TIME_QUANTUM);
}
if (i == 0) {
ath_err(common,
"DMA failed to stop in %d ms AR_CR=0x%08x AR_DIAG_SW=0x%08x\n",
"DMA failed to stop in %d ms AR_CR=0x%08x AR_DIAG_SW=0x%08x DMADBG_7=0x%08x\n",
AH_RX_STOP_DMA_TIMEOUT / 1000,
REG_READ(ah, AR_CR),
REG_READ(ah, AR_DIAG_SW));
REG_READ(ah, AR_DIAG_SW),
REG_READ(ah, AR_DMADBG_7));
return false;
} else {
return true;