diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/ar9003_mac.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/ar9003_mac.c | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mac.c b/drivers/net/wireless/ath/ath9k/ar9003_mac.c index c3179d9bdc38..e3382d5013c5 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c @@ -21,6 +21,132 @@ static void ar9003_hw_rx_enable(struct ath_hw *hw) REG_WRITE(hw, AR_CR, 0); } +static void +ar9003_set_txdesc(struct ath_hw *ah, void *ds, struct ath_tx_info *i) +{ + struct ar9003_txc *ads = ds; + int checksum = 0; + u32 val, ctl12, ctl17; + + val = (ATHEROS_VENDOR_ID << AR_DescId_S) | + (1 << AR_TxRxDesc_S) | + (1 << AR_CtrlStat_S) | + (i->qcu << AR_TxQcuNum_S) | 0x17; + + checksum += val; + ACCESS_ONCE(ads->info) = val; + + checksum += i->link; + ACCESS_ONCE(ads->link) = i->link; + + checksum += i->buf_addr[0]; + ACCESS_ONCE(ads->data0) = i->buf_addr[0]; + checksum += i->buf_addr[1]; + ACCESS_ONCE(ads->data1) = i->buf_addr[1]; + checksum += i->buf_addr[2]; + ACCESS_ONCE(ads->data2) = i->buf_addr[2]; + checksum += i->buf_addr[3]; + ACCESS_ONCE(ads->data3) = i->buf_addr[3]; + + checksum += (val = (i->buf_len[0] << AR_BufLen_S) & AR_BufLen); + ACCESS_ONCE(ads->ctl3) = val; + checksum += (val = (i->buf_len[1] << AR_BufLen_S) & AR_BufLen); + ACCESS_ONCE(ads->ctl5) = val; + checksum += (val = (i->buf_len[2] << AR_BufLen_S) & AR_BufLen); + ACCESS_ONCE(ads->ctl7) = val; + checksum += (val = (i->buf_len[3] << AR_BufLen_S) & AR_BufLen); + ACCESS_ONCE(ads->ctl9) = val; + + checksum = (u16) (((checksum & 0xffff) + (checksum >> 16)) & 0xffff); + ACCESS_ONCE(ads->ctl10) = checksum; + + if (i->is_first || i->is_last) { + ACCESS_ONCE(ads->ctl13) = set11nTries(i->rates, 0) + | set11nTries(i->rates, 1) + | set11nTries(i->rates, 2) + | set11nTries(i->rates, 3) + | (i->dur_update ? AR_DurUpdateEna : 0) + | SM(0, AR_BurstDur); + + ACCESS_ONCE(ads->ctl14) = set11nRate(i->rates, 0) + | set11nRate(i->rates, 1) + | set11nRate(i->rates, 2) + | set11nRate(i->rates, 3); + } else { + ACCESS_ONCE(ads->ctl13) = 0; + ACCESS_ONCE(ads->ctl14) = 0; + } + + ads->ctl20 = 0; + ads->ctl21 = 0; + ads->ctl22 = 0; + + ctl17 = SM(i->keytype, AR_EncrType); + if (!i->is_first) { + ACCESS_ONCE(ads->ctl11) = 0; + ACCESS_ONCE(ads->ctl12) = i->is_last ? 0 : AR_TxMore; + ACCESS_ONCE(ads->ctl15) = 0; + ACCESS_ONCE(ads->ctl16) = 0; + ACCESS_ONCE(ads->ctl17) = ctl17; + ACCESS_ONCE(ads->ctl18) = 0; + ACCESS_ONCE(ads->ctl19) = 0; + return; + } + + ACCESS_ONCE(ads->ctl11) = (i->pkt_len & AR_FrameLen) + | (i->flags & ATH9K_TXDESC_VMF ? AR_VirtMoreFrag : 0) + | SM(i->txpower, AR_XmitPower) + | (i->flags & ATH9K_TXDESC_VEOL ? AR_VEOL : 0) + | (i->keyix != ATH9K_TXKEYIX_INVALID ? AR_DestIdxValid : 0) + | (i->flags & ATH9K_TXDESC_LOWRXCHAIN ? AR_LowRxChain : 0) + | (i->flags & ATH9K_TXDESC_CLRDMASK ? AR_ClrDestMask : 0) + | (i->flags & ATH9K_TXDESC_RTSENA ? AR_RTSEnable : + (i->flags & ATH9K_TXDESC_CTSENA ? AR_CTSEnable : 0)); + + ctl12 = (i->keyix != ATH9K_TXKEYIX_INVALID ? + SM(i->keyix, AR_DestIdx) : 0) + | SM(i->type, AR_FrameType) + | (i->flags & ATH9K_TXDESC_NOACK ? AR_NoAck : 0) + | (i->flags & ATH9K_TXDESC_EXT_ONLY ? AR_ExtOnly : 0) + | (i->flags & ATH9K_TXDESC_EXT_AND_CTL ? AR_ExtAndCtl : 0); + + ctl17 |= (i->flags & ATH9K_TXDESC_LDPC ? AR_LDPC : 0); + switch (i->aggr) { + case AGGR_BUF_FIRST: + ctl17 |= SM(i->aggr_len, AR_AggrLen); + /* fall through */ + case AGGR_BUF_MIDDLE: + ctl12 |= AR_IsAggr | AR_MoreAggr; + ctl17 |= SM(i->ndelim, AR_PadDelim); + break; + case AGGR_BUF_LAST: + ctl12 |= AR_IsAggr; + break; + case AGGR_BUF_NONE: + break; + } + + val = (i->flags & ATH9K_TXDESC_PAPRD) >> ATH9K_TXDESC_PAPRD_S; + ctl12 |= SM(val, AR_PAPRDChainMask); + + ACCESS_ONCE(ads->ctl12) = ctl12; + ACCESS_ONCE(ads->ctl17) = ctl17; + + ACCESS_ONCE(ads->ctl15) = set11nPktDurRTSCTS(i->rates, 0) + | set11nPktDurRTSCTS(i->rates, 1); + + ACCESS_ONCE(ads->ctl16) = set11nPktDurRTSCTS(i->rates, 2) + | set11nPktDurRTSCTS(i->rates, 3); + + ACCESS_ONCE(ads->ctl18) = set11nRateFlags(i->rates, 0) + | set11nRateFlags(i->rates, 1) + | set11nRateFlags(i->rates, 2) + | set11nRateFlags(i->rates, 3) + | SM(i->rtscts_rate, AR_RTSCTSRate); + + ACCESS_ONCE(ads->ctl19) = AR_Not_Sounding; +} + static u16 ar9003_calc_ptr_chksum(struct ar9003_txc *ads) { int checksum; @@ -471,6 +597,7 @@ void ar9003_hw_attach_mac_ops(struct ath_hw *hw) ops->rx_enable = ar9003_hw_rx_enable; ops->set_desc_link = ar9003_hw_set_desc_link; ops->get_isr = ar9003_hw_get_isr; + ops->set_txdesc = ar9003_set_txdesc; ops->fill_txdesc = ar9003_hw_fill_txdesc; ops->proc_txdesc = ar9003_hw_proc_txdesc; ops->set11n_txdesc = ar9003_hw_set11n_txdesc; |