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openwrtv4/package/mac80211/patches/562-ath9k_use_reg_rmw.patch
Felix Fietkau 4cbdad0e9d ath9k: add a few de-bloating and optimization patches 
SVN-Revision: 26281
2011-03-23 20:16:58 +00:00

274 lines
8.7 KiB
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--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -684,14 +684,14 @@ static void ath9k_hw_init_qos(struct ath
unsigned long ar9003_get_pll_sqsum_dvc(struct ath_hw *ah)
{
- REG_WRITE(ah, PLL3, (REG_READ(ah, PLL3) & ~(PLL3_DO_MEAS_MASK)));
- udelay(100);
- REG_WRITE(ah, PLL3, (REG_READ(ah, PLL3) | PLL3_DO_MEAS_MASK));
+ REG_CLR_BIT(ah, PLL3, PLL3_DO_MEAS_MASK);
+ udelay(100);
+ REG_SET_BIT(ah, PLL3, PLL3_DO_MEAS_MASK);
- while ((REG_READ(ah, PLL4) & PLL4_MEAS_DONE) == 0)
- udelay(100);
+ while ((REG_READ(ah, PLL4) & PLL4_MEAS_DONE) == 0)
+ udelay(100);
- return (REG_READ(ah, PLL3) & SQSUM_DVC_MASK) >> 3;
+ return (REG_READ(ah, PLL3) & SQSUM_DVC_MASK) >> 3;
}
EXPORT_SYMBOL(ar9003_get_pll_sqsum_dvc);
@@ -841,8 +841,7 @@ void ath9k_hw_init_global_settings(struc
ah->misc_mode);
if (ah->misc_mode != 0)
- REG_WRITE(ah, AR_PCU_MISC,
- REG_READ(ah, AR_PCU_MISC) | ah->misc_mode);
+ REG_SET_BIT(ah, AR_PCU_MISC, ah->misc_mode);
if (conf->channel && conf->channel->band == IEEE80211_BAND_5GHZ)
sifstime = 16;
@@ -910,23 +909,19 @@ u32 ath9k_regd_get_ctl(struct ath_regula
static inline void ath9k_hw_set_dma(struct ath_hw *ah)
{
struct ath_common *common = ath9k_hw_common(ah);
- u32 regval;
ENABLE_REGWRITE_BUFFER(ah);
/*
* set AHB_MODE not to do cacheline prefetches
*/
- if (!AR_SREV_9300_20_OR_LATER(ah)) {
- regval = REG_READ(ah, AR_AHB_MODE);
- REG_WRITE(ah, AR_AHB_MODE, regval | AR_AHB_PREFETCH_RD_EN);
- }
+ if (!AR_SREV_9300_20_OR_LATER(ah))
+ REG_SET_BIT(ah, AR_AHB_MODE, AR_AHB_PREFETCH_RD_EN);
/*
* let mac dma reads be in 128 byte chunks
*/
- regval = REG_READ(ah, AR_TXCFG) & ~AR_TXCFG_DMASZ_MASK;
- REG_WRITE(ah, AR_TXCFG, regval | AR_TXCFG_DMASZ_128B);
+ REG_RMW(ah, AR_TXCFG, AR_TXCFG_DMASZ_128B, AR_TXCFG_DMASZ_MASK);
REGWRITE_BUFFER_FLUSH(ah);
@@ -943,8 +938,7 @@ static inline void ath9k_hw_set_dma(stru
/*
* let mac dma writes be in 128 byte chunks
*/
- regval = REG_READ(ah, AR_RXCFG) & ~AR_RXCFG_DMASZ_MASK;
- REG_WRITE(ah, AR_RXCFG, regval | AR_RXCFG_DMASZ_128B);
+ REG_RMW(ah, AR_RXCFG, AR_RXCFG_DMASZ_128B, AR_RXCFG_DMASZ_MASK);
/*
* Setup receive FIFO threshold to hold off TX activities
@@ -983,30 +977,27 @@ static inline void ath9k_hw_set_dma(stru
static void ath9k_hw_set_operating_mode(struct ath_hw *ah, int opmode)
{
- u32 val;
+ u32 mask = AR_STA_ID1_STA_AP | AR_STA_ID1_ADHOC;
+ u32 set = AR_STA_ID1_KSRCH_MODE;
- val = REG_READ(ah, AR_STA_ID1);
- val &= ~(AR_STA_ID1_STA_AP | AR_STA_ID1_ADHOC);
switch (opmode) {
- case NL80211_IFTYPE_AP:
- REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_STA_AP
- | AR_STA_ID1_KSRCH_MODE);
- REG_CLR_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
- break;
case NL80211_IFTYPE_ADHOC:
case NL80211_IFTYPE_MESH_POINT:
- REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_ADHOC
- | AR_STA_ID1_KSRCH_MODE);
+ set |= AR_STA_ID1_ADHOC;
REG_SET_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
break;
+ case NL80211_IFTYPE_AP:
+ set |= AR_STA_ID1_STA_AP;
+ /* fall through */
case NL80211_IFTYPE_STATION:
- REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_KSRCH_MODE);
+ REG_CLR_BIT(ah, AR_CFG, AR_CFG_AP_ADHOC_INDICATION);
break;
default:
- if (ah->is_monitoring)
- REG_WRITE(ah, AR_STA_ID1, val | AR_STA_ID1_KSRCH_MODE);
+ if (!ah->is_monitoring)
+ set = 0;
break;
}
+ REG_RMW(ah, AR_STA_ID1, set, mask);
}
void ath9k_hw_get_delta_slope_vals(struct ath_hw *ah, u32 coef_scaled,
@@ -1032,10 +1023,8 @@ static bool ath9k_hw_set_reset(struct at
u32 tmpReg;
if (AR_SREV_9100(ah)) {
- u32 val = REG_READ(ah, AR_RTC_DERIVED_CLK);
- val &= ~AR_RTC_DERIVED_CLK_PERIOD;
- val |= SM(1, AR_RTC_DERIVED_CLK_PERIOD);
- REG_WRITE(ah, AR_RTC_DERIVED_CLK, val);
+ REG_RMW_FIELD(ah, AR_RTC_DERIVED_CLK,
+ AR_RTC_DERIVED_CLK_PERIOD, 1);
(void)REG_READ(ah, AR_RTC_DERIVED_CLK);
}
@@ -1460,8 +1449,7 @@ int ath9k_hw_reset(struct ath_hw *ah, st
ar9002_hw_enable_wep_aggregation(ah);
}
- REG_WRITE(ah, AR_STA_ID1,
- REG_READ(ah, AR_STA_ID1) | AR_STA_ID1_PRESERVE_SEQNUM);
+ REG_SET_BIT(ah, AR_STA_ID1, AR_STA_ID1_PRESERVE_SEQNUM);
ath9k_hw_set_dma(ah);
@@ -2213,11 +2201,9 @@ void ath9k_hw_setrxfilter(struct ath_hw
REG_WRITE(ah, AR_PHY_ERR, phybits);
if (phybits)
- REG_WRITE(ah, AR_RXCFG,
- REG_READ(ah, AR_RXCFG) | AR_RXCFG_ZLFDMA);
+ REG_SET_BIT(ah, AR_RXCFG, AR_RXCFG_ZLFDMA);
else
- REG_WRITE(ah, AR_RXCFG,
- REG_READ(ah, AR_RXCFG) & ~AR_RXCFG_ZLFDMA);
+ REG_CLR_BIT(ah, AR_RXCFG, AR_RXCFG_ZLFDMA);
REGWRITE_BUFFER_FLUSH(ah);
}
--- a/drivers/net/wireless/ath/ath9k/mac.c
+++ b/drivers/net/wireless/ath/ath9k/mac.c
@@ -465,10 +465,9 @@ bool ath9k_hw_resettxqueue(struct ath_hw
REG_WRITE(ah, AR_QCBRCFG(q),
SM(qi->tqi_cbrPeriod, AR_Q_CBRCFG_INTERVAL) |
SM(qi->tqi_cbrOverflowLimit, AR_Q_CBRCFG_OVF_THRESH));
- REG_WRITE(ah, AR_QMISC(q),
- REG_READ(ah, AR_QMISC(q)) | AR_Q_MISC_FSP_CBR |
- (qi->tqi_cbrOverflowLimit ?
- AR_Q_MISC_CBR_EXP_CNTR_LIMIT_EN : 0));
+ REG_SET_BIT(ah, AR_QMISC(q), AR_Q_MISC_FSP_CBR |
+ (qi->tqi_cbrOverflowLimit ?
+ AR_Q_MISC_CBR_EXP_CNTR_LIMIT_EN : 0));
}
if (qi->tqi_readyTime && (qi->tqi_type != ATH9K_TX_QUEUE_CAB)) {
REG_WRITE(ah, AR_QRDYTIMECFG(q),
@@ -481,40 +480,31 @@ bool ath9k_hw_resettxqueue(struct ath_hw
(qi->tqi_burstTime ? AR_D_CHNTIME_EN : 0));
if (qi->tqi_burstTime
- && (qi->tqi_qflags & TXQ_FLAG_RDYTIME_EXP_POLICY_ENABLE)) {
- REG_WRITE(ah, AR_QMISC(q),
- REG_READ(ah, AR_QMISC(q)) |
- AR_Q_MISC_RDYTIME_EXP_POLICY);
+ && (qi->tqi_qflags & TXQ_FLAG_RDYTIME_EXP_POLICY_ENABLE))
+ REG_SET_BIT(ah, AR_QMISC(q), AR_Q_MISC_RDYTIME_EXP_POLICY);
- }
-
- if (qi->tqi_qflags & TXQ_FLAG_BACKOFF_DISABLE) {
- REG_WRITE(ah, AR_DMISC(q),
- REG_READ(ah, AR_DMISC(q)) |
- AR_D_MISC_POST_FR_BKOFF_DIS);
- }
+ if (qi->tqi_qflags & TXQ_FLAG_BACKOFF_DISABLE)
+ REG_SET_BIT(ah, AR_DMISC(q), AR_D_MISC_POST_FR_BKOFF_DIS);
REGWRITE_BUFFER_FLUSH(ah);
- if (qi->tqi_qflags & TXQ_FLAG_FRAG_BURST_BACKOFF_ENABLE) {
- REG_WRITE(ah, AR_DMISC(q),
- REG_READ(ah, AR_DMISC(q)) |
- AR_D_MISC_FRAG_BKOFF_EN);
- }
+ if (qi->tqi_qflags & TXQ_FLAG_FRAG_BURST_BACKOFF_ENABLE)
+ REG_SET_BIT(ah, AR_DMISC(q), AR_D_MISC_FRAG_BKOFF_EN);
+
switch (qi->tqi_type) {
case ATH9K_TX_QUEUE_BEACON:
ENABLE_REGWRITE_BUFFER(ah);
- REG_WRITE(ah, AR_QMISC(q), REG_READ(ah, AR_QMISC(q))
- | AR_Q_MISC_FSP_DBA_GATED
- | AR_Q_MISC_BEACON_USE
- | AR_Q_MISC_CBR_INCR_DIS1);
+ REG_SET_BIT(ah, AR_QMISC(q),
+ AR_Q_MISC_FSP_DBA_GATED
+ | AR_Q_MISC_BEACON_USE
+ | AR_Q_MISC_CBR_INCR_DIS1);
- REG_WRITE(ah, AR_DMISC(q), REG_READ(ah, AR_DMISC(q))
- | (AR_D_MISC_ARB_LOCKOUT_CNTRL_GLOBAL <<
+ REG_SET_BIT(ah, AR_DMISC(q),
+ (AR_D_MISC_ARB_LOCKOUT_CNTRL_GLOBAL <<
AR_D_MISC_ARB_LOCKOUT_CNTRL_S)
- | AR_D_MISC_BEACON_USE
- | AR_D_MISC_POST_FR_BKOFF_DIS);
+ | AR_D_MISC_BEACON_USE
+ | AR_D_MISC_POST_FR_BKOFF_DIS);
REGWRITE_BUFFER_FLUSH(ah);
@@ -533,41 +523,38 @@ bool ath9k_hw_resettxqueue(struct ath_hw
case ATH9K_TX_QUEUE_CAB:
ENABLE_REGWRITE_BUFFER(ah);
- REG_WRITE(ah, AR_QMISC(q), REG_READ(ah, AR_QMISC(q))
- | AR_Q_MISC_FSP_DBA_GATED
- | AR_Q_MISC_CBR_INCR_DIS1
- | AR_Q_MISC_CBR_INCR_DIS0);
+ REG_SET_BIT(ah, AR_QMISC(q),
+ AR_Q_MISC_FSP_DBA_GATED
+ | AR_Q_MISC_CBR_INCR_DIS1
+ | AR_Q_MISC_CBR_INCR_DIS0);
value = (qi->tqi_readyTime -
(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))
- | (AR_D_MISC_ARB_LOCKOUT_CNTRL_GLOBAL <<
+ REG_SET_BIT(ah, AR_DMISC(q),
+ (AR_D_MISC_ARB_LOCKOUT_CNTRL_GLOBAL <<
AR_D_MISC_ARB_LOCKOUT_CNTRL_S));
REGWRITE_BUFFER_FLUSH(ah);
break;
case ATH9K_TX_QUEUE_PSPOLL:
- REG_WRITE(ah, AR_QMISC(q),
- REG_READ(ah, AR_QMISC(q)) | AR_Q_MISC_CBR_INCR_DIS1);
+ REG_SET_BIT(ah, AR_QMISC(q), AR_Q_MISC_CBR_INCR_DIS1);
break;
case ATH9K_TX_QUEUE_UAPSD:
- REG_WRITE(ah, AR_DMISC(q), REG_READ(ah, AR_DMISC(q)) |
- AR_D_MISC_POST_FR_BKOFF_DIS);
+ REG_SET_BIT(ah, AR_DMISC(q), AR_D_MISC_POST_FR_BKOFF_DIS);
break;
default:
break;
}
if (qi->tqi_intFlags & ATH9K_TXQ_USE_LOCKOUT_BKOFF_DIS) {
- REG_WRITE(ah, AR_DMISC(q),
- REG_READ(ah, AR_DMISC(q)) |
- SM(AR_D_MISC_ARB_LOCKOUT_CNTRL_GLOBAL,
- AR_D_MISC_ARB_LOCKOUT_CNTRL) |
- AR_D_MISC_POST_FR_BKOFF_DIS);
+ REG_SET_BIT(ah, AR_DMISC(q),
+ SM(AR_D_MISC_ARB_LOCKOUT_CNTRL_GLOBAL,
+ AR_D_MISC_ARB_LOCKOUT_CNTRL) |
+ AR_D_MISC_POST_FR_BKOFF_DIS);
}
if (AR_SREV_9300_20_OR_LATER(ah))
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