diff options
Diffstat (limited to 'drivers/net/wireless/ath9k/mac.c')
-rw-r--r-- | drivers/net/wireless/ath9k/mac.c | 233 |
1 files changed, 126 insertions, 107 deletions
diff --git a/drivers/net/wireless/ath9k/mac.c b/drivers/net/wireless/ath9k/mac.c index af32d091dc38..f757bc7eec68 100644 --- a/drivers/net/wireless/ath9k/mac.c +++ b/drivers/net/wireless/ath9k/mac.c @@ -14,45 +14,40 @@ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ -#include "core.h" -#include "hw.h" -#include "reg.h" -#include "phy.h" +#include "ath9k.h" -static void ath9k_hw_set_txq_interrupts(struct ath_hal *ah, +static void ath9k_hw_set_txq_interrupts(struct ath_hw *ah, struct ath9k_tx_queue_info *qi) { - struct ath_hal_5416 *ahp = AH5416(ah); - DPRINTF(ah->ah_sc, ATH_DBG_INTERRUPT, "tx ok 0x%x err 0x%x desc 0x%x eol 0x%x urn 0x%x\n", - ahp->ah_txOkInterruptMask, ahp->ah_txErrInterruptMask, - ahp->ah_txDescInterruptMask, ahp->ah_txEolInterruptMask, - ahp->ah_txUrnInterruptMask); + ah->txok_interrupt_mask, ah->txerr_interrupt_mask, + ah->txdesc_interrupt_mask, ah->txeol_interrupt_mask, + ah->txurn_interrupt_mask); REG_WRITE(ah, AR_IMR_S0, - SM(ahp->ah_txOkInterruptMask, AR_IMR_S0_QCU_TXOK) - | SM(ahp->ah_txDescInterruptMask, AR_IMR_S0_QCU_TXDESC)); + SM(ah->txok_interrupt_mask, AR_IMR_S0_QCU_TXOK) + | SM(ah->txdesc_interrupt_mask, AR_IMR_S0_QCU_TXDESC)); REG_WRITE(ah, AR_IMR_S1, - SM(ahp->ah_txErrInterruptMask, AR_IMR_S1_QCU_TXERR) - | SM(ahp->ah_txEolInterruptMask, AR_IMR_S1_QCU_TXEOL)); + SM(ah->txerr_interrupt_mask, AR_IMR_S1_QCU_TXERR) + | SM(ah->txeol_interrupt_mask, AR_IMR_S1_QCU_TXEOL)); REG_RMW_FIELD(ah, AR_IMR_S2, - AR_IMR_S2_QCU_TXURN, ahp->ah_txUrnInterruptMask); + AR_IMR_S2_QCU_TXURN, ah->txurn_interrupt_mask); } -u32 ath9k_hw_gettxbuf(struct ath_hal *ah, u32 q) +u32 ath9k_hw_gettxbuf(struct ath_hw *ah, u32 q) { return REG_READ(ah, AR_QTXDP(q)); } -bool ath9k_hw_puttxbuf(struct ath_hal *ah, u32 q, u32 txdp) +bool ath9k_hw_puttxbuf(struct ath_hw *ah, u32 q, u32 txdp) { REG_WRITE(ah, AR_QTXDP(q), txdp); return true; } -bool ath9k_hw_txstart(struct ath_hal *ah, u32 q) +bool ath9k_hw_txstart(struct ath_hw *ah, u32 q) { DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "queue %u\n", q); @@ -61,7 +56,7 @@ bool ath9k_hw_txstart(struct ath_hal *ah, u32 q) return true; } -u32 ath9k_hw_numtxpending(struct ath_hal *ah, u32 q) +u32 ath9k_hw_numtxpending(struct ath_hw *ah, u32 q) { u32 npend; @@ -75,16 +70,15 @@ u32 ath9k_hw_numtxpending(struct ath_hal *ah, u32 q) return npend; } -bool ath9k_hw_updatetxtriglevel(struct ath_hal *ah, bool bIncTrigLevel) +bool ath9k_hw_updatetxtriglevel(struct ath_hw *ah, bool bIncTrigLevel) { - struct ath_hal_5416 *ahp = AH5416(ah); u32 txcfg, curLevel, newLevel; enum ath9k_int omask; - if (ah->ah_txTrigLevel >= MAX_TX_FIFO_THRESHOLD) + if (ah->tx_trig_level >= MAX_TX_FIFO_THRESHOLD) return false; - omask = ath9k_hw_set_interrupts(ah, ahp->ah_maskReg & ~ATH9K_INT_GLOBAL); + omask = ath9k_hw_set_interrupts(ah, ah->mask_reg & ~ATH9K_INT_GLOBAL); txcfg = REG_READ(ah, AR_TXCFG); curLevel = MS(txcfg, AR_FTRIG); @@ -100,21 +94,38 @@ bool ath9k_hw_updatetxtriglevel(struct ath_hal *ah, bool bIncTrigLevel) ath9k_hw_set_interrupts(ah, omask); - ah->ah_txTrigLevel = newLevel; + ah->tx_trig_level = newLevel; return newLevel != curLevel; } -bool ath9k_hw_stoptxdma(struct ath_hal *ah, u32 q) +bool ath9k_hw_stoptxdma(struct ath_hw *ah, u32 q) { +#define ATH9K_TX_STOP_DMA_TIMEOUT 4000 /* usec */ +#define ATH9K_TIME_QUANTUM 100 /* usec */ + + struct ath9k_hw_capabilities *pCap = &ah->caps; + struct ath9k_tx_queue_info *qi; u32 tsfLow, j, wait; + u32 wait_time = ATH9K_TX_STOP_DMA_TIMEOUT / ATH9K_TIME_QUANTUM; + + if (q >= pCap->total_queues) { + DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "invalid queue num %u\n", q); + return false; + } + + qi = &ah->txq[q]; + if (qi->tqi_type == ATH9K_TX_QUEUE_INACTIVE) { + DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "inactive queue\n"); + return false; + } REG_WRITE(ah, AR_Q_TXD, 1 << q); - for (wait = 1000; wait != 0; wait--) { + for (wait = wait_time; wait != 0; wait--) { if (ath9k_hw_numtxpending(ah, q) == 0) break; - udelay(100); + udelay(ATH9K_TIME_QUANTUM); } if (ath9k_hw_numtxpending(ah, q)) { @@ -144,8 +155,7 @@ bool ath9k_hw_stoptxdma(struct ath_hal *ah, u32 q) udelay(200); REG_CLR_BIT(ah, AR_TIMER_MODE, AR_QUIET_TIMER_EN); - wait = 1000; - + wait = wait_time; while (ath9k_hw_numtxpending(ah, q)) { if ((--wait) == 0) { DPRINTF(ah->ah_sc, ATH_DBG_XMIT, @@ -153,18 +163,20 @@ bool ath9k_hw_stoptxdma(struct ath_hal *ah, u32 q) "msec after killing last frame\n"); break; } - udelay(100); + udelay(ATH9K_TIME_QUANTUM); } REG_CLR_BIT(ah, AR_DIAG_SW, AR_DIAG_FORCE_CH_IDLE_HIGH); } REG_WRITE(ah, AR_Q_TXD, 0); - return wait != 0; + +#undef ATH9K_TX_STOP_DMA_TIMEOUT +#undef ATH9K_TIME_QUANTUM } -bool ath9k_hw_filltxdesc(struct ath_hal *ah, struct ath_desc *ds, +bool ath9k_hw_filltxdesc(struct ath_hw *ah, struct ath_desc *ds, u32 segLen, bool firstSeg, bool lastSeg, const struct ath_desc *ds0) { @@ -192,7 +204,7 @@ bool ath9k_hw_filltxdesc(struct ath_hal *ah, struct ath_desc *ds, return true; } -void ath9k_hw_cleartxdesc(struct ath_hal *ah, struct ath_desc *ds) +void ath9k_hw_cleartxdesc(struct ath_hw *ah, struct ath_desc *ds) { struct ar5416_desc *ads = AR5416DESC(ds); @@ -203,7 +215,7 @@ void ath9k_hw_cleartxdesc(struct ath_hal *ah, struct ath_desc *ds) ads->ds_txstatus8 = ads->ds_txstatus9 = 0; } -int ath9k_hw_txprocdesc(struct ath_hal *ah, struct ath_desc *ds) +int ath9k_hw_txprocdesc(struct ath_hw *ah, struct ath_desc *ds) { struct ar5416_desc *ads = AR5416DESC(ds); @@ -273,19 +285,18 @@ int ath9k_hw_txprocdesc(struct ath_hal *ah, struct ath_desc *ds) ds->ds_txstat.ts_shortretry = MS(ads->ds_txstatus1, AR_RTSFailCnt); ds->ds_txstat.ts_longretry = MS(ads->ds_txstatus1, AR_DataFailCnt); ds->ds_txstat.ts_virtcol = MS(ads->ds_txstatus1, AR_VirtRetryCnt); - ds->ds_txstat.ts_antenna = 1; + ds->ds_txstat.ts_antenna = 0; return 0; } -void ath9k_hw_set11n_txdesc(struct ath_hal *ah, struct ath_desc *ds, +void ath9k_hw_set11n_txdesc(struct ath_hw *ah, struct ath_desc *ds, u32 pktLen, enum ath9k_pkt_type type, u32 txPower, u32 keyIx, enum ath9k_key_type keyType, u32 flags) { struct ar5416_desc *ads = AR5416DESC(ds); - struct ath_hal_5416 *ahp = AH5416(ah); - txPower += ahp->ah_txPowerIndexOffset; + txPower += ah->txpower_indexoffset; if (txPower > 63) txPower = 63; @@ -314,7 +325,7 @@ void ath9k_hw_set11n_txdesc(struct ath_hal *ah, struct ath_desc *ds, } } -void ath9k_hw_set11n_ratescenario(struct ath_hal *ah, struct ath_desc *ds, +void ath9k_hw_set11n_ratescenario(struct ath_hw *ah, struct ath_desc *ds, struct ath_desc *lastds, u32 durUpdateEn, u32 rtsctsRate, u32 rtsctsDuration, @@ -325,9 +336,6 @@ void ath9k_hw_set11n_ratescenario(struct ath_hal *ah, struct ath_desc *ds, struct ar5416_desc *last_ads = AR5416DESC(lastds); u32 ds_ctl0; - (void) nseries; - (void) rtsctsDuration; - if (flags & (ATH9K_TXDESC_RTSENA | ATH9K_TXDESC_CTSENA)) { ds_ctl0 = ads->ds_ctl0; @@ -372,7 +380,7 @@ void ath9k_hw_set11n_ratescenario(struct ath_hal *ah, struct ath_desc *ds, last_ads->ds_ctl3 = ads->ds_ctl3; } -void ath9k_hw_set11n_aggr_first(struct ath_hal *ah, struct ath_desc *ds, +void ath9k_hw_set11n_aggr_first(struct ath_hw *ah, struct ath_desc *ds, u32 aggrLen) { struct ar5416_desc *ads = AR5416DESC(ds); @@ -382,7 +390,7 @@ void ath9k_hw_set11n_aggr_first(struct ath_hal *ah, struct ath_desc *ds, ads->ds_ctl6 |= SM(aggrLen, AR_AggrLen); } -void ath9k_hw_set11n_aggr_middle(struct ath_hal *ah, struct ath_desc *ds, +void ath9k_hw_set11n_aggr_middle(struct ath_hw *ah, struct ath_desc *ds, u32 numDelims) { struct ar5416_desc *ads = AR5416DESC(ds); @@ -396,7 +404,7 @@ void ath9k_hw_set11n_aggr_middle(struct ath_hal *ah, struct ath_desc *ds, ads->ds_ctl6 = ctl6; } -void ath9k_hw_set11n_aggr_last(struct ath_hal *ah, struct ath_desc *ds) +void ath9k_hw_set11n_aggr_last(struct ath_hw *ah, struct ath_desc *ds) { struct ar5416_desc *ads = AR5416DESC(ds); @@ -405,14 +413,14 @@ void ath9k_hw_set11n_aggr_last(struct ath_hal *ah, struct ath_desc *ds) ads->ds_ctl6 &= ~AR_PadDelim; } -void ath9k_hw_clr11n_aggr(struct ath_hal *ah, struct ath_desc *ds) +void ath9k_hw_clr11n_aggr(struct ath_hw *ah, struct ath_desc *ds) { struct ar5416_desc *ads = AR5416DESC(ds); ads->ds_ctl1 &= (~AR_IsAggr & ~AR_MoreAggr); } -void ath9k_hw_set11n_burstduration(struct ath_hal *ah, struct ath_desc *ds, +void ath9k_hw_set11n_burstduration(struct ath_hw *ah, struct ath_desc *ds, u32 burstDuration) { struct ar5416_desc *ads = AR5416DESC(ds); @@ -421,7 +429,7 @@ void ath9k_hw_set11n_burstduration(struct ath_hal *ah, struct ath_desc *ds, ads->ds_ctl2 |= SM(burstDuration, AR_BurstDur); } -void ath9k_hw_set11n_virtualmorefrag(struct ath_hal *ah, struct ath_desc *ds, +void ath9k_hw_set11n_virtualmorefrag(struct ath_hw *ah, struct ath_desc *ds, u32 vmf) { struct ar5416_desc *ads = AR5416DESC(ds); @@ -432,20 +440,17 @@ void ath9k_hw_set11n_virtualmorefrag(struct ath_hal *ah, struct ath_desc *ds, ads->ds_ctl0 &= ~AR_VirtMoreFrag; } -void ath9k_hw_gettxintrtxqs(struct ath_hal *ah, u32 *txqs) +void ath9k_hw_gettxintrtxqs(struct ath_hw *ah, u32 *txqs) { - struct ath_hal_5416 *ahp = AH5416(ah); - - *txqs &= ahp->ah_intrTxqs; - ahp->ah_intrTxqs &= ~(*txqs); + *txqs &= ah->intr_txqs; + ah->intr_txqs &= ~(*txqs); } -bool ath9k_hw_set_txq_props(struct ath_hal *ah, int q, +bool ath9k_hw_set_txq_props(struct ath_hw *ah, int q, const struct ath9k_tx_queue_info *qinfo) { u32 cw; - struct ath_hal_5416 *ahp = AH5416(ah); - struct ath9k_hw_capabilities *pCap = &ah->ah_caps; + struct ath9k_hw_capabilities *pCap = &ah->caps; struct ath9k_tx_queue_info *qi; if (q >= pCap->total_queues) { @@ -453,7 +458,7 @@ bool ath9k_hw_set_txq_props(struct ath_hal *ah, int q, return false; } - qi = &ahp->ah_txq[q]; + qi = &ah->txq[q]; if (qi->tqi_type == ATH9K_TX_QUEUE_INACTIVE) { DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "inactive queue\n"); return false; @@ -509,11 +514,10 @@ bool ath9k_hw_set_txq_props(struct ath_hal *ah, int q, return true; } -bool ath9k_hw_get_txq_props(struct ath_hal *ah, int q, +bool ath9k_hw_get_txq_props(struct ath_hw *ah, int q, struct ath9k_tx_queue_info *qinfo) { - struct ath_hal_5416 *ahp = AH5416(ah); - struct ath9k_hw_capabilities *pCap = &ah->ah_caps; + struct ath9k_hw_capabilities *pCap = &ah->caps; struct ath9k_tx_queue_info *qi; if (q >= pCap->total_queues) { @@ -521,7 +525,7 @@ bool ath9k_hw_get_txq_props(struct ath_hal *ah, int q, return false; } - qi = &ahp->ah_txq[q]; + qi = &ah->txq[q]; if (qi->tqi_type == ATH9K_TX_QUEUE_INACTIVE) { DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "inactive queue\n"); return false; @@ -545,12 +549,11 @@ bool ath9k_hw_get_txq_props(struct ath_hal *ah, int q, return true; } -int ath9k_hw_setuptxqueue(struct ath_hal *ah, enum ath9k_tx_queue type, +int ath9k_hw_setuptxqueue(struct ath_hw *ah, enum ath9k_tx_queue type, const struct ath9k_tx_queue_info *qinfo) { - struct ath_hal_5416 *ahp = AH5416(ah); struct ath9k_tx_queue_info *qi; - struct ath9k_hw_capabilities *pCap = &ah->ah_caps; + struct ath9k_hw_capabilities *pCap = &ah->caps; int q; switch (type) { @@ -568,7 +571,7 @@ int ath9k_hw_setuptxqueue(struct ath_hal *ah, enum ath9k_tx_queue type, break; case ATH9K_TX_QUEUE_DATA: for (q = 0; q < pCap->total_queues; q++) - if (ahp->ah_txq[q].tqi_type == + if (ah->txq[q].tqi_type == ATH9K_TX_QUEUE_INACTIVE) break; if (q == pCap->total_queues) { @@ -584,7 +587,7 @@ int ath9k_hw_setuptxqueue(struct ath_hal *ah, enum ath9k_tx_queue type, DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "queue %u\n", q); - qi = &ahp->ah_txq[q]; + qi = &ah->txq[q]; if (qi->tqi_type != ATH9K_TX_QUEUE_INACTIVE) { DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "tx queue %u already active\n", q); @@ -611,17 +614,16 @@ int ath9k_hw_setuptxqueue(struct ath_hal *ah, enum ath9k_tx_queue type, return q; } -bool ath9k_hw_releasetxqueue(struct ath_hal *ah, u32 q) +bool ath9k_hw_releasetxqueue(struct ath_hw *ah, u32 q) { - struct ath_hal_5416 *ahp = AH5416(ah); - struct ath9k_hw_capabilities *pCap = &ah->ah_caps; + struct ath9k_hw_capabilities *pCap = &ah->caps; struct ath9k_tx_queue_info *qi; if (q >= pCap->total_queues) { DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "invalid queue num %u\n", q); return false; } - qi = &ahp->ah_txq[q]; + qi = &ah->txq[q]; if (qi->tqi_type == ATH9K_TX_QUEUE_INACTIVE) { DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "inactive queue %u\n", q); return false; @@ -630,21 +632,20 @@ bool ath9k_hw_releasetxqueue(struct ath_hal *ah, u32 q) DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "release queue %u\n", q); qi->tqi_type = ATH9K_TX_QUEUE_INACTIVE; - ahp->ah_txOkInterruptMask &= ~(1 << q); - ahp->ah_txErrInterruptMask &= ~(1 << q); - ahp->ah_txDescInterruptMask &= ~(1 << q); - ahp->ah_txEolInterruptMask &= ~(1 << q); - ahp->ah_txUrnInterruptMask &= ~(1 << q); + ah->txok_interrupt_mask &= ~(1 << q); + ah->txerr_interrupt_mask &= ~(1 << q); + ah->txdesc_interrupt_mask &= ~(1 << q); + ah->txeol_interrupt_mask &= ~(1 << q); + ah->txurn_interrupt_mask &= ~(1 << q); ath9k_hw_set_txq_interrupts(ah, qi); return true; } -bool ath9k_hw_resettxqueue(struct ath_hal *ah, u32 q) +bool ath9k_hw_resettxqueue(struct ath_hw *ah, u32 q) { - struct ath_hal_5416 *ahp = AH5416(ah); - struct ath9k_hw_capabilities *pCap = &ah->ah_caps; - struct ath9k_channel *chan = ah->ah_curchan; + struct ath9k_hw_capabilities *pCap = &ah->caps; + struct ath9k_channel *chan = ah->curchan; struct ath9k_tx_queue_info *qi; u32 cwMin, chanCwMin, value; @@ -653,7 +654,7 @@ bool ath9k_hw_resettxqueue(struct ath_hal *ah, u32 q) return false; } - qi = &ahp->ah_txq[q]; + qi = &ah->txq[q]; if (qi->tqi_type == ATH9K_TX_QUEUE_INACTIVE) { DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, "inactive queue %u\n", q); return true; @@ -741,9 +742,9 @@ bool ath9k_hw_resettxqueue(struct ath_hal *ah, u32 q) | AR_Q_MISC_CBR_INCR_DIS1 | AR_Q_MISC_CBR_INCR_DIS0); value = (qi->tqi_readyTime - - (ah->ah_config.sw_beacon_response_time - - ah->ah_config.dma_beacon_response_time) - - ah->ah_config.additional_swba_backoff) * 1024; + (ah->config.sw_beacon_response_time - + ah->config.dma_beacon_response_time) - + ah->config.additional_swba_backoff) * 1024; REG_WRITE(ah, AR_QRDYTIMECFG(q), value | AR_Q_RDYTIMECFG_EN); REG_WRITE(ah, AR_DMISC(q), REG_READ(ah, AR_DMISC(q)) @@ -771,31 +772,31 @@ bool ath9k_hw_resettxqueue(struct ath_hal *ah, u32 q) } if (qi->tqi_qflags & TXQ_FLAG_TXOKINT_ENABLE) - ahp->ah_txOkInterruptMask |= 1 << q; + ah->txok_interrupt_mask |= 1 << q; else - ahp->ah_txOkInterruptMask &= ~(1 << q); + ah->txok_interrupt_mask &= ~(1 << q); if (qi->tqi_qflags & TXQ_FLAG_TXERRINT_ENABLE) - ahp->ah_txErrInterruptMask |= 1 << q; + ah->txerr_interrupt_mask |= 1 << q; else - ahp->ah_txErrInterruptMask &= ~(1 << q); + ah->txerr_interrupt_mask &= ~(1 << q); if (qi->tqi_qflags & TXQ_FLAG_TXDESCINT_ENABLE) - ahp->ah_txDescInterruptMask |= 1 << q; + ah->txdesc_interrupt_mask |= 1 << q; else - ahp->ah_txDescInterruptMask &= ~(1 << q); + ah->txdesc_interrupt_mask &= ~(1 << q); if (qi->tqi_qflags & TXQ_FLAG_TXEOLINT_ENABLE) - ahp->ah_txEolInterruptMask |= 1 << q; + ah->txeol_interrupt_mask |= 1 << q; else - ahp->ah_txEolInterruptMask &= ~(1 << q); + ah->txeol_interrupt_mask &= ~(1 << q); if (qi->tqi_qflags & TXQ_FLAG_TXURNINT_ENABLE) - ahp->ah_txUrnInterruptMask |= 1 << q; + ah->txurn_interrupt_mask |= 1 << q; else - ahp->ah_txUrnInterruptMask &= ~(1 << q); + ah->txurn_interrupt_mask &= ~(1 << q); ath9k_hw_set_txq_interrupts(ah, qi); return true; } -int ath9k_hw_rxprocdesc(struct ath_hal *ah, struct ath_desc *ds, +int ath9k_hw_rxprocdesc(struct ath_hw *ah, struct ath_desc *ds, u32 pa, struct ath_desc *nds, u64 tsf) { struct ar5416_desc ads; @@ -860,11 +861,11 @@ int ath9k_hw_rxprocdesc(struct ath_hal *ah, struct ath_desc *ds, return 0; } -bool ath9k_hw_setuprxdesc(struct ath_hal *ah, struct ath_desc *ds, +bool ath9k_hw_setuprxdesc(struct ath_hw *ah, struct ath_desc *ds, u32 size, u32 flags) { struct ar5416_desc *ads = AR5416DESC(ds); - struct ath9k_hw_capabilities *pCap = &ah->ah_caps; + struct ath9k_hw_capabilities *pCap = &ah->caps; ads->ds_ctl1 = size & AR_BufLen; if (flags & ATH9K_RXDESC_INTREQ) @@ -877,7 +878,7 @@ bool ath9k_hw_setuprxdesc(struct ath_hal *ah, struct ath_desc *ds, return true; } -bool ath9k_hw_setrxabort(struct ath_hal *ah, bool set) +bool ath9k_hw_setrxabort(struct ath_hw *ah, bool set) { u32 reg; @@ -885,7 +886,8 @@ bool ath9k_hw_setrxabort(struct ath_hal *ah, bool set) REG_SET_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT)); - if (!ath9k_hw_wait(ah, AR_OBS_BUS_1, AR_OBS_BUS_1_RX_STATE, 0)) { + if (!ath9k_hw_wait(ah, AR_OBS_BUS_1, AR_OBS_BUS_1_RX_STATE, + 0, AH_WAIT_TIMEOUT)) { REG_CLR_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT)); @@ -904,17 +906,17 @@ bool ath9k_hw_setrxabort(struct ath_hal *ah, bool set) return true; } -void ath9k_hw_putrxbuf(struct ath_hal *ah, u32 rxdp) +void ath9k_hw_putrxbuf(struct ath_hw *ah, u32 rxdp) { REG_WRITE(ah, AR_RXDP, rxdp); } -void ath9k_hw_rxena(struct ath_hal *ah) +void ath9k_hw_rxena(struct ath_hw *ah) { REG_WRITE(ah, AR_CR, AR_CR_RXE); } -void ath9k_hw_startpcureceive(struct ath_hal *ah) +void ath9k_hw_startpcureceive(struct ath_hw *ah) { ath9k_enable_mib_counters(ah); @@ -923,24 +925,41 @@ void ath9k_hw_startpcureceive(struct ath_hal *ah) REG_CLR_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT)); } -void ath9k_hw_stoppcurecv(struct ath_hal *ah) +void ath9k_hw_stoppcurecv(struct ath_hw *ah) { REG_SET_BIT(ah, AR_DIAG_SW, AR_DIAG_RX_DIS); ath9k_hw_disable_mib_counters(ah); } -bool ath9k_hw_stopdmarecv(struct ath_hal *ah) +bool ath9k_hw_stopdmarecv(struct ath_hw *ah) { +#define AH_RX_STOP_DMA_TIMEOUT 10000 /* usec */ +#define AH_RX_TIME_QUANTUM 100 /* usec */ + + int i; + REG_WRITE(ah, AR_CR, AR_CR_RXD); - if (!ath9k_hw_wait(ah, AR_CR, AR_CR_RXE, 0)) { + /* 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; + udelay(AH_TIME_QUANTUM); + } + + if (i == 0) { DPRINTF(ah->ah_sc, ATH_DBG_QUEUE, - "dma failed to stop in 10ms\n" - "AR_CR=0x%08x\nAR_DIAG_SW=0x%08x\n", - REG_READ(ah, AR_CR), REG_READ(ah, AR_DIAG_SW)); + "dma failed to stop in %d ms " + "AR_CR=0x%08x AR_DIAG_SW=0x%08x\n", + AH_RX_STOP_DMA_TIMEOUT / 1000, + REG_READ(ah, AR_CR), + REG_READ(ah, AR_DIAG_SW)); return false; } else { return true; } + +#undef AH_RX_TIME_QUANTUM +#undef AH_RX_STOP_DMA_TIMEOUT } |