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ath9k: backport tx dma stop changes from r26005

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git-svn-id: svn://svn.openwrt.org/openwrt/branches/backfire@26009 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd
2011-03-10 14:25:42 +00:00
parent c8e605ccd9
commit c19f05f844
3 changed files with 79 additions and 20 deletions
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10
package/mac80211/patches/571-ath9k_fix_dma_stop.patch
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@@ -25,11 +25,11 @@
if (npend)
--- a/drivers/net/wireless/ath/ath9k/mac.c
+++ b/drivers/net/wireless/ath/ath9k/mac.c
@@ -143,6 +143,37 @@ bool ath9k_hw_updatetxtriglevel(struct a
@@ -143,6 +143,33 @@ bool ath9k_hw_updatetxtriglevel(struct a
}
EXPORT_SYMBOL(ath9k_hw_updatetxtriglevel);
+bool ath9k_hw_abort_tx_dma(struct ath_hw *ah)
+void ath9k_hw_abort_tx_dma(struct ath_hw *ah)
+{
+ int i, q;
+
@@ -47,16 +47,12 @@
+ udelay(5);
+ }
+ }
+ if (!i)
+ return false;
+
+ REG_CLR_BIT(ah, AR_PCU_MISC, AR_PCU_FORCE_QUIET_COLL | AR_PCU_CLEAR_VMF);
+ REG_CLR_BIT(ah, AR_DIAG_SW, AR_DIAG_FORCE_CH_IDLE_HIGH);
+ REG_CLR_BIT(ah, AR_D_GBL_IFS_MISC, AR_D_GBL_IFS_MISC_IGNORE_BACKOFF);
+
+ REG_WRITE(ah, AR_Q_TXD, 0);
+
+ return true;
+}
+EXPORT_SYMBOL(ath9k_hw_abort_tx_dma);
+
@@ -69,7 +65,7 @@
u32 ath9k_hw_numtxpending(struct ath_hw *ah, u32 q);
bool ath9k_hw_updatetxtriglevel(struct ath_hw *ah, bool bIncTrigLevel);
bool ath9k_hw_stoptxdma(struct ath_hw *ah, u32 q);
+bool ath9k_hw_abort_tx_dma(struct ath_hw *ah);
+void ath9k_hw_abort_tx_dma(struct ath_hw *ah);
void ath9k_hw_gettxintrtxqs(struct ath_hw *ah, u32 *txqs);
bool ath9k_hw_set_txq_props(struct ath_hw *ah, int q,
const struct ath9k_tx_queue_info *qinfo);