From: Vasanthakumar Thiagarajan <vasanth@xxxxxxxxxxx>
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@xxxxxxxxxxx>
---
drivers/net/wireless/ath/ath9k/ar9003_mac.c | 234 ++++++++++++++++++++++++++-
drivers/net/wireless/ath/ath9k/ar9003_mac.h | 18 ++
drivers/net/wireless/ath/ath9k/mac.h | 11 +-
3 files changed, 254 insertions(+), 9 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mac.c b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
index 81ad09a..3884d21 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
@@ -167,23 +167,169 @@ static bool ar9003_hw_get_isr(struct ath_hw *ah, enum ath9k_int *masked)
return true;
}
+static u16 ar9003_calc_ptr_chksum(struct ar9003_txc *ads)
+{
+ int checksum;
+
+ checksum = ads->info + ads->link
+ + ads->data0 + ads->ctl3
+ + ads->data1 + ads->ctl5
+ + ads->data2 + ads->ctl7
+ + ads->data3 + ads->ctl9;
+
+ return ((checksum & 0xffff) + (checksum >> 16)) & AR_TxPtrChkSum;
+}
+
static void ar9003_hw_fill_txdesc(struct ath_hw *ah, void *ds, u32 seglen,
bool is_firstseg, bool is_lastseg,
const void *ds0, dma_addr_t buf_addr,
unsigned int qcu)
{
+ struct ar9003_txc *ads = (struct ar9003_txc *) ds;
+ unsigned int descid = 0;
+
+ ads->info = (ATHEROS_VENDOR_ID << AR_DescId_S) |
+ (1 << AR_TxRxDesc_S) |
+ (1 << AR_CtrlStat_S) |
+ (qcu << AR_TxQcuNum_S) | 0x17;
+
+ ads->data0 = buf_addr;
+ ads->data1 = 0;
+ ads->data2 = 0;
+ ads->data3 = 0;
+
+ ads->ctl3 = (seglen << AR_BufLen_S);
+ ads->ctl3 &= AR_BufLen;
+
+ /* Fill in pointer checksum and descriptor id */
+ ads->ctl10 = ar9003_calc_ptr_chksum(ads);
+ ads->ctl10 |= (descid << AR_TxDescId_S);
+
+ if (is_firstseg) {
+ ads->ctl12 |= (is_lastseg ? 0 : AR_TxMore);
+ } else if (is_lastseg) {
+ ads->ctl11 = 0;
+ ads->ctl12 = 0;
+ ads->ctl13 = AR9003TXC_CONST(ds0)->ctl13;
+ ads->ctl14 = AR9003TXC_CONST(ds0)->ctl14;
+ } else {
+ /* XXX Intermediate descriptor in a multi-descriptor frame.*/
+ ads->ctl11 = 0;
+ ads->ctl12 = AR_TxMore;
+ ads->ctl13 = 0;
+ ads->ctl14 = 0;
+ }
}
static int ar9003_hw_proc_txdesc(struct ath_hw *ah, void *ds,
struct ath_tx_status *ts)
{
+ struct ar9003_txs *ads;
+
+ ads = &ah->ts_ring[ah->ts_tail];
+
+ if ((ads->status8 & 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);
+ memset(ads, 0, sizeof(*ads));
+ return -EIO;
+ }
+
+ 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)
+ ts->ts_status |= ATH9K_TXERR_XRETRY;
+ if (ads->status3 & AR_Filtered)
+ ts->ts_status |= ATH9K_TXERR_FILT;
+ if (ads->status3 & 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)
+ ts->ts_status |= ATH9K_TXERR_TIMER_EXPIRED;
+
+ if (ads->status3 & AR_DescCfgErr)
+ ts->ts_flags |= ATH9K_TX_DESC_CFG_ERR;
+ if (ads->status3 & AR_TxDataUnderrun) {
+ ts->ts_flags |= ATH9K_TX_DATA_UNDERRUN;
+ ath9k_hw_updatetxtriglevel(ah, true);
+ }
+ if (ads->status3 & 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_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);
+
+ memset(ads, 0, sizeof(*ads));
+
return 0;
}
+
static void ar9003_hw_set11n_txdesc(struct ath_hw *ah, void *ds,
- u32 pktLen, enum ath9k_pkt_type type, u32 txPower,
- u32 keyIx, enum ath9k_key_type keyType, u32 flags)
+ u32 pktlen, enum ath9k_pkt_type type, u32 txpower,
+ u32 keyIx, enum ath9k_key_type keyType, u32 flags)
{
-
+ struct ar9003_txc *ads = (struct ar9003_txc *) ds;
+
+ txpower += ah->txpower_indexoffset;
+ if (txpower > 63)
+ txpower = 63;
+
+ ads->ctl11 = (pktlen & AR_FrameLen)
+ | (flags & ATH9K_TXDESC_VMF ? AR_VirtMoreFrag : 0)
+ | SM(txpower, AR_XmitPower)
+ | (flags & ATH9K_TXDESC_VEOL ? AR_VEOL : 0)
+ | (flags & ATH9K_TXDESC_CLRDMASK ? AR_ClrDestMask : 0)
+ | (keyIx != ATH9K_TXKEYIX_INVALID ? AR_DestIdxValid : 0)
+ | (flags & ATH9K_TXDESC_LOWRXCHAIN ? AR_LowRxChain : 0);
+
+ ads->ctl12 =
+ (keyIx != ATH9K_TXKEYIX_INVALID ? SM(keyIx, AR_DestIdx) : 0)
+ | SM(type, AR_FrameType)
+ | (flags & ATH9K_TXDESC_NOACK ? AR_NoAck : 0)
+ | (flags & ATH9K_TXDESC_EXT_ONLY ? AR_ExtOnly : 0)
+ | (flags & ATH9K_TXDESC_EXT_AND_CTL ? AR_ExtAndCtl : 0);
+
+ ads->ctl17 = SM(keyType, AR_EncrType);
+ ads->ctl18 = 0;
+ ads->ctl19 = AR_Not_Sounding;
+
+ ads->ctl20 = 0;
+ ads->ctl21 = 0;
+ ads->ctl22 = 0;
}
static void ar9003_hw_set11n_ratescenario(struct ath_hw *ah, void *ds,
@@ -193,41 +339,119 @@ static void ar9003_hw_set11n_ratescenario(struct ath_hw *ah, void *ds,
struct ath9k_11n_rate_series series[],
u32 nseries, u32 flags)
{
+ struct ar9003_txc *ads = (struct ar9003_txc *) ds;
+ struct ar9003_txc *last_ads = (struct ar9003_txc *) lastds;
+ u_int32_t ctl11;
+
+ if (flags & (ATH9K_TXDESC_RTSENA | ATH9K_TXDESC_CTSENA)) {
+ ctl11 = ads->ctl11;
+
+ if (flags & ATH9K_TXDESC_RTSENA) {
+ ctl11 &= ~AR_CTSEnable;
+ ctl11 |= AR_RTSEnable;
+ } else {
+ ctl11 &= ~AR_RTSEnable;
+ ctl11 |= AR_CTSEnable;
+ }
+
+ ads->ctl11 = ctl11;
+ } else {
+ ads->ctl11 = (ads->ctl11 & ~(AR_RTSEnable | AR_CTSEnable));
+ }
+ ads->ctl13 = set11nTries(series, 0)
+ | set11nTries(series, 1)
+ | set11nTries(series, 2)
+ | set11nTries(series, 3)
+ | (durUpdateEn ? AR_DurUpdateEna : 0)
+ | SM(0, AR_BurstDur);
+
+ ads->ctl14 = set11nRate(series, 0)
+ | set11nRate(series, 1)
+ | set11nRate(series, 2)
+ | set11nRate(series, 3);
+
+ ads->ctl15 = set11nPktDurRTSCTS(series, 0)
+ | set11nPktDurRTSCTS(series, 1);
+
+ ads->ctl16 = set11nPktDurRTSCTS(series, 2)
+ | set11nPktDurRTSCTS(series, 3);
+
+ ads->ctl18 = set11nRateFlags(series, 0)
+ | set11nRateFlags(series, 1)
+ | set11nRateFlags(series, 2)
+ | set11nRateFlags(series, 3)
+ | SM(rtsctsRate, AR_RTSCTSRate);
+ ads->ctl19 = AR_Not_Sounding;
+
+ last_ads->ctl13 = ads->ctl13;
+ last_ads->ctl14 = ads->ctl14;
}
static void ar9003_hw_set11n_aggr_first(struct ath_hw *ah, void *ds,
u32 aggrLen)
{
+ struct ar9003_txc *ads = (struct ar9003_txc *) ds;
+
+ ads->ctl12 |= (AR_IsAggr | AR_MoreAggr);
+ ads->ctl17 &= ~AR_AggrLen;
+ ads->ctl17 |= SM(aggrLen, AR_AggrLen);
}
static void ar9003_hw_set11n_aggr_middle(struct ath_hw *ah, void *ds,
u32 numDelims)
{
-
+ struct ar9003_txc *ads = (struct ar9003_txc *) ds;
+ unsigned int ctl17;
+
+ ads->ctl12 |= (AR_IsAggr | AR_MoreAggr);
+
+ /*
+ * We use a stack variable to manipulate ctl6 to reduce uncached
+ * read modify, modfiy, write.
+ */
+ ctl17 = ads->ctl17;
+ ctl17 &= ~AR_PadDelim;
+ ctl17 |= SM(numDelims, AR_PadDelim);
+ ads->ctl17 = ctl17;
}
static void ar9003_hw_set11n_aggr_last(struct ath_hw *ah, void *ds)
{
+ struct ar9003_txc *ads = (struct ar9003_txc *) ds;
+ ads->ctl12 |= AR_IsAggr;
+ ads->ctl12 &= ~AR_MoreAggr;
+ ads->ctl17 &= ~AR_PadDelim;
}
static void ar9003_hw_clr11n_aggr(struct ath_hw *ah, void *ds)
{
+ struct ar9003_txc *ads = (struct ar9003_txc *) ds;
+ ads->ctl12 &= (~AR_IsAggr & ~AR_MoreAggr);
}
static void ar9003_hw_set11n_burstduration(struct ath_hw *ah, void *ds,
u32 burstDuration)
{
+ struct ar9003_txc *ads = (struct ar9003_txc *) ds;
+
+ ads->ctl13 &= ~AR_BurstDur;
+ ads->ctl13 |= SM(burstDuration, AR_BurstDur);
}
static void ar9003_hw_set11n_virtualmorefrag(struct ath_hw *ah, void *ds,
- u32 vmf)
+ u32 vmf)
{
+ struct ar9003_txc *ads = (struct ar9003_txc *) ds;
+ if (vmf)
+ ads->ctl11 |= AR_VirtMoreFrag;
+ else
+ ads->ctl11 &= ~AR_VirtMoreFrag;
}
void ar9003_hw_attach_mac_ops(struct ath_hw *hw)
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mac.h b/drivers/net/wireless/ath/ath9k/ar9003_mac.h
index 636ad07..da6c299 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_mac.h
+++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.h
@@ -20,7 +20,23 @@
#define AR_DescId 0xffff0000
#define AR_DescId_S 16
#define AR_CtrlStat 0x00004000
+#define AR_CtrlStat_S 14
#define AR_TxRxDesc 0x00008000
+#define AR_TxRxDesc_S 15
+#define AR_TxQcuNum 0x00000f00
+#define AR_TxQcuNum_S 8
+#define AR_BufLen_S 16
+
+#define AR_TxDescId 0xffff0000
+#define AR_TxDescId_S 16
+#define AR_TxPtrChkSum 0x0000ffff
+
+#define AR_TxTid 0xf0000000
+#define AR_TxTid_S 28
+
+#define AR_LowRxChain 0x00004000
+
+#define AR_Not_Sounding 0x20000000
#define MAP_ISR_S2_CST 6
#define MAP_ISR_S2_GTT 6
@@ -30,6 +46,8 @@
#define MAP_ISR_S2_DTIM 7
#define MAP_ISR_S2_TSFOOR 4
+#define AR9003TXC_CONST(_ds) ((const struct ar9003_txc *) _ds)
+
enum ath9k_rx_qtype {
ATH9K_RX_QUEUE_HP,
ATH9K_RX_QUEUE_LP,
diff --git a/drivers/net/wireless/ath/ath9k/mac.h b/drivers/net/wireless/ath/ath9k/mac.h
index 0d49219..2b24e4c 100644
--- a/drivers/net/wireless/ath/ath9k/mac.h
+++ b/drivers/net/wireless/ath/ath9k/mac.h
@@ -116,7 +116,10 @@ struct ath_tx_status {
int8_t ts_rssi_ext0;
int8_t ts_rssi_ext1;
int8_t ts_rssi_ext2;
- u8 pad[3];
+ u8 qid;
+ u16 desc_id;
+ u8 tid;
+ u8 pad[2];
u32 ba_low;
u32 ba_high;
u32 evm0;
@@ -260,7 +263,7 @@ struct ath_desc {
#define ATH9K_TXDESC_EXT_AND_CTL 0x0080
#define ATH9K_TXDESC_VMF 0x0100
#define ATH9K_TXDESC_FRAG_IS_ON 0x0200
-#define ATH9K_TXDESC_CAB 0x0400
+#define ATH9K_TXDESC_LOWRXCHAIN 0x0400
#define ATH9K_RXDESC_INTREQ 0x0020
@@ -354,7 +357,8 @@ struct ar5416_desc {
#define AR_DestIdxValid 0x40000000
#define AR_CTSEnable 0x80000000
-#define AR_BufLen 0x00000fff
+#define AR_BufLen AR_SREV_9300_20_OR_LATER(ah) ? 0x0fff0000 : \
+ 0x00000fff
#define AR_TxMore 0x00001000
#define AR_DestIdx 0x000fe000
#define AR_DestIdx_S 13
@@ -494,7 +498,6 @@ struct ar5416_desc {
#define AR_RxCTLRsvd00 0xffffffff
-#define AR_BufLen 0x00000fff
#define AR_RxCtlRsvd00 0x00001000
#define AR_RxIntrReq 0x00002000
#define AR_RxCtlRsvd01 0xffffc000
--
1.6.3.3
--
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