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path: root/drivers/net/wireless/ath/ath9k/ar9003_mac.c
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Diffstat (limited to 'drivers/net/wireless/ath/ath9k/ar9003_mac.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/ar9003_mac.c123
1 files changed, 75 insertions, 48 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mac.c b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
index 3b424ca1ba84..4ceddbbdfcee 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
@@ -182,8 +182,8 @@ static bool ar9003_hw_get_isr(struct ath_hw *ah, enum ath9k_int *masked)
}
if (sync_cause & AR_INTR_SYNC_LOCAL_TIMEOUT)
- ath_print(common, ATH_DBG_INTERRUPT,
- "AR_INTR_SYNC_LOCAL_TIMEOUT\n");
+ ath_dbg(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);
@@ -237,73 +237,76 @@ static int ar9003_hw_proc_txdesc(struct ath_hw *ah, void *ds,
struct ath_tx_status *ts)
{
struct ar9003_txs *ads;
+ u32 status;
ads = &ah->ts_ring[ah->ts_tail];
- if ((ads->status8 & AR_TxDone) == 0)
+ status = ACCESS_ONCE(ads->status8);
+ if ((status & AR_TxDone) == 0)
return -EINPROGRESS;
ah->ts_tail = (ah->ts_tail + 1) % ah->ts_size;
if ((MS(ads->ds_info, AR_DescId) != ATHEROS_VENDOR_ID) ||
(MS(ads->ds_info, AR_TxRxDesc) != 1)) {
- ath_print(ath9k_hw_common(ah), ATH_DBG_XMIT,
- "Tx Descriptor error %x\n", ads->ds_info);
+ ath_dbg(ath9k_hw_common(ah), ATH_DBG_XMIT,
+ "Tx Descriptor error %x\n", ads->ds_info);
memset(ads, 0, sizeof(*ads));
return -EIO;
}
+ if (status & AR_TxOpExceeded)
+ ts->ts_status |= ATH9K_TXERR_XTXOP;
+ ts->ts_rateindex = MS(status, AR_FinalTxIdx);
+ ts->ts_seqnum = MS(status, AR_SeqNum);
+ ts->tid = MS(status, AR_TxTid);
+
ts->qid = MS(ads->ds_info, AR_TxQcuNum);
ts->desc_id = MS(ads->status1, AR_TxDescId);
- ts->ts_seqnum = MS(ads->status8, AR_SeqNum);
ts->ts_tstamp = ads->status4;
ts->ts_status = 0;
ts->ts_flags = 0;
- if (ads->status3 & AR_ExcessiveRetries)
+ status = ACCESS_ONCE(ads->status2);
+ ts->ts_rssi_ctl0 = MS(status, AR_TxRSSIAnt00);
+ ts->ts_rssi_ctl1 = MS(status, AR_TxRSSIAnt01);
+ ts->ts_rssi_ctl2 = MS(status, AR_TxRSSIAnt02);
+ if (status & AR_TxBaStatus) {
+ ts->ts_flags |= ATH9K_TX_BA;
+ ts->ba_low = ads->status5;
+ ts->ba_high = ads->status6;
+ }
+
+ status = ACCESS_ONCE(ads->status3);
+ if (status & AR_ExcessiveRetries)
ts->ts_status |= ATH9K_TXERR_XRETRY;
- if (ads->status3 & AR_Filtered)
+ if (status & AR_Filtered)
ts->ts_status |= ATH9K_TXERR_FILT;
- if (ads->status3 & AR_FIFOUnderrun) {
+ if (status & AR_FIFOUnderrun) {
ts->ts_status |= ATH9K_TXERR_FIFO;
ath9k_hw_updatetxtriglevel(ah, true);
}
- if (ads->status8 & AR_TxOpExceeded)
- ts->ts_status |= ATH9K_TXERR_XTXOP;
- if (ads->status3 & AR_TxTimerExpired)
+ if (status & AR_TxTimerExpired)
ts->ts_status |= ATH9K_TXERR_TIMER_EXPIRED;
-
- if (ads->status3 & AR_DescCfgErr)
+ if (status & AR_DescCfgErr)
ts->ts_flags |= ATH9K_TX_DESC_CFG_ERR;
- if (ads->status3 & AR_TxDataUnderrun) {
+ if (status & AR_TxDataUnderrun) {
ts->ts_flags |= ATH9K_TX_DATA_UNDERRUN;
ath9k_hw_updatetxtriglevel(ah, true);
}
- if (ads->status3 & AR_TxDelimUnderrun) {
+ if (status & AR_TxDelimUnderrun) {
ts->ts_flags |= ATH9K_TX_DELIM_UNDERRUN;
ath9k_hw_updatetxtriglevel(ah, true);
}
- if (ads->status2 & AR_TxBaStatus) {
- ts->ts_flags |= ATH9K_TX_BA;
- ts->ba_low = ads->status5;
- ts->ba_high = ads->status6;
- }
+ ts->ts_shortretry = MS(status, AR_RTSFailCnt);
+ ts->ts_longretry = MS(status, AR_DataFailCnt);
+ ts->ts_virtcol = MS(status, AR_VirtRetryCnt);
- ts->ts_rateindex = MS(ads->status8, AR_FinalTxIdx);
-
- ts->ts_rssi = MS(ads->status7, AR_TxRSSICombined);
- ts->ts_rssi_ctl0 = MS(ads->status2, AR_TxRSSIAnt00);
- ts->ts_rssi_ctl1 = MS(ads->status2, AR_TxRSSIAnt01);
- ts->ts_rssi_ctl2 = MS(ads->status2, AR_TxRSSIAnt02);
- ts->ts_rssi_ext0 = MS(ads->status7, AR_TxRSSIAnt10);
- ts->ts_rssi_ext1 = MS(ads->status7, AR_TxRSSIAnt11);
- ts->ts_rssi_ext2 = MS(ads->status7, AR_TxRSSIAnt12);
- ts->ts_shortretry = MS(ads->status3, AR_RTSFailCnt);
- ts->ts_longretry = MS(ads->status3, AR_DataFailCnt);
- ts->ts_virtcol = MS(ads->status3, AR_VirtRetryCnt);
- ts->ts_antenna = 0;
-
- ts->tid = MS(ads->status8, AR_TxTid);
+ status = ACCESS_ONCE(ads->status7);
+ ts->ts_rssi = MS(status, AR_TxRSSICombined);
+ ts->ts_rssi_ext0 = MS(status, AR_TxRSSIAnt10);
+ ts->ts_rssi_ext1 = MS(status, AR_TxRSSIAnt11);
+ ts->ts_rssi_ext2 = MS(status, AR_TxRSSIAnt12);
memset(ads, 0, sizeof(*ads));
@@ -319,7 +322,6 @@ static void ar9003_hw_set11n_txdesc(struct ath_hw *ah, void *ds,
if (txpower > ah->txpower_limit)
txpower = ah->txpower_limit;
- txpower += ah->txpower_indexoffset;
if (txpower > 63)
txpower = 63;
@@ -407,12 +409,36 @@ static void ar9003_hw_set11n_ratescenario(struct ath_hw *ah, void *ds,
static void ar9003_hw_set11n_aggr_first(struct ath_hw *ah, void *ds,
u32 aggrLen)
{
+#define FIRST_DESC_NDELIMS 60
struct ar9003_txc *ads = (struct ar9003_txc *) ds;
ads->ctl12 |= (AR_IsAggr | AR_MoreAggr);
- ads->ctl17 &= ~AR_AggrLen;
- ads->ctl17 |= SM(aggrLen, AR_AggrLen);
+ if (ah->ent_mode & AR_ENT_OTP_MPSD) {
+ u32 ctl17, ndelim;
+ /*
+ * Add delimiter when using RTS/CTS with aggregation
+ * and non enterprise AR9003 card
+ */
+ ctl17 = ads->ctl17;
+ ndelim = MS(ctl17, AR_PadDelim);
+
+ if (ndelim < FIRST_DESC_NDELIMS) {
+ aggrLen += (FIRST_DESC_NDELIMS - ndelim) * 4;
+ ndelim = FIRST_DESC_NDELIMS;
+ }
+
+ ctl17 &= ~AR_AggrLen;
+ ctl17 |= SM(aggrLen, AR_AggrLen);
+
+ ctl17 &= ~AR_PadDelim;
+ ctl17 |= SM(ndelim, AR_PadDelim);
+
+ ads->ctl17 = ctl17;
+ } else {
+ ads->ctl17 &= ~AR_AggrLen;
+ ads->ctl17 |= SM(aggrLen, AR_AggrLen);
+ }
}
static void ar9003_hw_set11n_aggr_middle(struct ath_hw *ah, void *ds,
@@ -587,9 +613,9 @@ int ath9k_hw_process_rxdesc_edma(struct ath_hw *ah, struct ath_rx_status *rxs,
* possibly be reviewing the last subframe. AR_CRCErr
* is the CRC of the actual data.
*/
- if (rxsp->status11 & AR_CRCErr) {
+ if (rxsp->status11 & AR_CRCErr)
rxs->rs_status |= ATH9K_RXERR_CRC;
- } else if (rxsp->status11 & AR_PHYErr) {
+ if (rxsp->status11 & AR_PHYErr) {
phyerr = MS(rxsp->status11, AR_PHYErrCode);
/*
* If we reach a point here where AR_PostDelimCRCErr is
@@ -612,11 +638,12 @@ int ath9k_hw_process_rxdesc_edma(struct ath_hw *ah, struct ath_rx_status *rxs,
rxs->rs_phyerr = phyerr;
}
- } else if (rxsp->status11 & AR_DecryptCRCErr) {
+ }
+ if (rxsp->status11 & AR_DecryptCRCErr)
rxs->rs_status |= ATH9K_RXERR_DECRYPT;
- } else if (rxsp->status11 & AR_MichaelErr) {
+ if (rxsp->status11 & AR_MichaelErr)
rxs->rs_status |= ATH9K_RXERR_MIC;
- } else if (rxsp->status11 & AR_KeyMiss)
+ if (rxsp->status11 & AR_KeyMiss)
rxs->rs_status |= ATH9K_RXERR_DECRYPT;
}
@@ -631,10 +658,10 @@ void ath9k_hw_reset_txstatus_ring(struct ath_hw *ah)
memset((void *) ah->ts_ring, 0,
ah->ts_size * sizeof(struct ar9003_txs));
- ath_print(ath9k_hw_common(ah), ATH_DBG_XMIT,
- "TS Start 0x%x End 0x%x Virt %p, Size %d\n",
- ah->ts_paddr_start, ah->ts_paddr_end,
- ah->ts_ring, ah->ts_size);
+ ath_dbg(ath9k_hw_common(ah), ATH_DBG_XMIT,
+ "TS Start 0x%x End 0x%x Virt %p, Size %d\n",
+ ah->ts_paddr_start, ah->ts_paddr_end,
+ ah->ts_ring, ah->ts_size);
REG_WRITE(ah, AR_Q_STATUS_RING_START, ah->ts_paddr_start);
REG_WRITE(ah, AR_Q_STATUS_RING_END, ah->ts_paddr_end);