diff options
| -rw-r--r-- | drivers/net/wireless/ath/ath.h | 14 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/ani.c | 64 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/ani.h | 8 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/ar9003_phy.c | 7 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/hw.h | 2 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/main.c | 12 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/reg.h | 11 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/hw.c | 59 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/reg.h | 11 |
9 files changed, 101 insertions, 87 deletions
diff --git a/drivers/net/wireless/ath/ath.h b/drivers/net/wireless/ath/ath.h index b36d9d7..501050c 100644 --- a/drivers/net/wireless/ath/ath.h +++ b/drivers/net/wireless/ath/ath.h @@ -19,6 +19,7 @@ #include <linux/skbuff.h> #include <linux/if_ether.h> +#include <linux/spinlock.h> #include <net/mac80211.h> /* @@ -42,6 +43,13 @@ struct ath_ani { struct timer_list timer; }; +struct ath_cycle_counters { + u32 cycles; + u32 rx_busy; + u32 rx_frame; + u32 tx_frame; +}; + enum ath_device_state { ATH_HW_UNAVAILABLE, ATH_HW_INITIALIZED, @@ -147,6 +155,10 @@ struct ath_common { unsigned int clockrate; + spinlock_t cc_lock; + struct ath_cycle_counters cc_ani; + struct ath_cycle_counters cc_survey; + struct ath_regulatory regulatory; const struct ath_ops *ops; const struct ath_bus_ops *bus_ops; @@ -163,5 +175,7 @@ int ath_key_config(struct ath_common *common, struct ieee80211_sta *sta, struct ieee80211_key_conf *key); bool ath_hw_keyreset(struct ath_common *common, u16 entry); +void ath_hw_cycle_counters_update(struct ath_common *common); +int32_t ath_hw_get_listen_time(struct ath_common *common); #endif /* ATH_H */ diff --git a/drivers/net/wireless/ath/ath9k/ani.c b/drivers/net/wireless/ath/ath9k/ani.c index f2aa684..3aa8fb1 100644 --- a/drivers/net/wireless/ath/ath9k/ani.c +++ b/drivers/net/wireless/ath/ath9k/ani.c @@ -465,18 +465,6 @@ static void ath9k_hw_ani_lower_immunity(struct ath_hw *ah) ath9k_hw_set_cck_nil(ah, aniState->cckNoiseImmunityLevel - 1); } -static int32_t ath9k_hw_ani_get_listen_time(struct ath_hw *ah) -{ - struct ath_common *common = ath9k_hw_common(ah); - int32_t listen_time; - - ath9k_hw_update_cycle_counters(ah); - listen_time = ah->listen_time / (common->clockrate * 1000); - ah->listen_time = 0; - - return listen_time; -} - static void ath9k_ani_reset_old(struct ath_hw *ah, bool is_scanning) { struct ar5416AniState *aniState; @@ -655,7 +643,9 @@ static void ath9k_hw_ani_read_counters(struct ath_hw *ah) u32 phyCnt1, phyCnt2; int32_t listenTime; - listenTime = ath9k_hw_ani_get_listen_time(ah); + ath_hw_cycle_counters_update(common); + listenTime = ath_hw_get_listen_time(common); + if (listenTime < 0) { ah->stats.ast_ani_lneg++; ath9k_ani_restart(ah); @@ -796,54 +786,6 @@ void ath9k_hw_disable_mib_counters(struct ath_hw *ah) } EXPORT_SYMBOL(ath9k_hw_disable_mib_counters); -void ath9k_hw_update_cycle_counters(struct ath_hw *ah) -{ - struct ath_cycle_counters cc; - bool clear; - - memcpy(&cc, &ah->cc, sizeof(cc)); - - /* freeze counters */ - REG_WRITE(ah, AR_MIBC, AR_MIBC_FMC); - - ah->cc.cycles = REG_READ(ah, AR_CCCNT); - if (ah->cc.cycles < cc.cycles) { - clear = true; - goto skip; - } - - ah->cc.rx_clear = REG_READ(ah, AR_RCCNT); - ah->cc.rx_frame = REG_READ(ah, AR_RFCNT); - ah->cc.tx_frame = REG_READ(ah, AR_TFCNT); - - /* prevent wraparound */ - if (ah->cc.cycles & BIT(31)) - clear = true; - -#define CC_DELTA(_field, _reg) ah->cc_delta._field += ah->cc._field - cc._field - CC_DELTA(cycles, AR_CCCNT); - CC_DELTA(rx_frame, AR_RFCNT); - CC_DELTA(rx_clear, AR_RCCNT); - CC_DELTA(tx_frame, AR_TFCNT); -#undef CC_DELTA - - ah->listen_time += (ah->cc.cycles - cc.cycles) - - ((ah->cc.rx_frame - cc.rx_frame) + - (ah->cc.tx_frame - cc.tx_frame)); - -skip: - if (clear) { - REG_WRITE(ah, AR_CCCNT, 0); - REG_WRITE(ah, AR_RFCNT, 0); - REG_WRITE(ah, AR_RCCNT, 0); - REG_WRITE(ah, AR_TFCNT, 0); - memset(&ah->cc, 0, sizeof(ah->cc)); - } - - /* unfreeze counters */ - REG_WRITE(ah, AR_MIBC, 0); -} - /* * Process a MIB interrupt. We may potentially be invoked because * any of the MIB counters overflow/trigger so don't assume we're diff --git a/drivers/net/wireless/ath/ath9k/ani.h b/drivers/net/wireless/ath/ath9k/ani.h index 98cfd81..0cd6783 100644 --- a/drivers/net/wireless/ath/ath9k/ani.h +++ b/drivers/net/wireless/ath/ath9k/ani.h @@ -93,13 +93,6 @@ struct ath9k_mib_stats { u32 beacons; }; -struct ath_cycle_counters { - u32 cycles; - u32 rx_frame; - u32 rx_clear; - u32 tx_frame; -}; - /* INI default values for ANI registers */ struct ath9k_ani_default { u16 m1ThreshLow; @@ -164,7 +157,6 @@ struct ar5416Stats { void ath9k_enable_mib_counters(struct ath_hw *ah); void ath9k_hw_disable_mib_counters(struct ath_hw *ah); -void ath9k_hw_update_cycle_counters(struct ath_hw *ah); void ath9k_hw_ani_setup(struct ath_hw *ah); void ath9k_hw_ani_init(struct ath_hw *ah); int ath9k_hw_get_ani_channel_idx(struct ath_hw *ah, diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c index efb0559..669b777 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c @@ -1254,13 +1254,12 @@ void ar9003_hw_bb_watchdog_dbg_info(struct ath_hw *ah) "** BB mode: BB_gen_controls=0x%08x **\n", REG_READ(ah, AR_PHY_GEN_CTRL)); - ath9k_hw_update_cycle_counters(ah); -#define PCT(_field) (ah->cc_delta._field * 100 / ah->cc_delta.cycles) - if (ah->cc_delta.cycles) +#define PCT(_field) (common->cc_survey._field * 100 / common->cc_survey.cycles) + if (common->cc_survey.cycles) ath_print(common, ATH_DBG_RESET, "** BB busy times: rx_clear=%d%%, " "rx_frame=%d%%, tx_frame=%d%% **\n", - PCT(rx_clear), PCT(rx_frame), PCT(tx_frame)); + PCT(rx_busy), PCT(rx_frame), PCT(tx_frame)); ath_print(common, ATH_DBG_RESET, "==== BB update: done ====\n\n"); diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h index 87627dd..7f696c8 100644 --- a/drivers/net/wireless/ath/ath9k/hw.h +++ b/drivers/net/wireless/ath/ath9k/hw.h @@ -740,8 +740,6 @@ struct ath_hw { int coarse_low[5]; int firpwr[5]; enum ath9k_ani_cmd ani_function; - struct ath_cycle_counters cc, cc_delta; - int32_t listen_time; /* Bluetooth coexistance */ struct ath_btcoex_hw btcoex_hw; diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 74c2dc8..360c6f5 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -399,6 +399,7 @@ void ath_ani_calibrate(unsigned long data) bool aniflag = false; unsigned int timestamp = jiffies_to_msecs(jiffies); u32 cal_interval, short_cal_interval, long_cal_interval; + unsigned long flags; if (ah->caldata && ah->caldata->nfcal_interference) long_cal_interval = ATH_LONG_CALINTERVAL_INT; @@ -449,8 +450,11 @@ void ath_ani_calibrate(unsigned long data) /* Skip all processing if there's nothing to do. */ if (longcal || shortcal || aniflag) { /* Call ANI routine if necessary */ - if (aniflag) + if (aniflag) { + spin_lock_irqsave(&common->cc_lock, flags); ath9k_hw_ani_monitor(ah, ah->curchan); + spin_unlock_irqrestore(&common->cc_lock, flags); + } /* Perform calibration if necessary */ if (longcal || shortcal) { @@ -635,6 +639,7 @@ irqreturn_t ath_isr(int irq, void *dev) struct ath_softc *sc = dev; struct ath_hw *ah = sc->sc_ah; + struct ath_common *common = ath9k_hw_common(ah); enum ath9k_int status; bool sched = false; @@ -684,7 +689,12 @@ irqreturn_t ath_isr(int irq, void *dev) if ((ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) && (status & ATH9K_INT_BB_WATCHDOG)) { + + spin_lock(&common->cc_lock); + ath_hw_cycle_counters_update(common); ar9003_hw_bb_watchdog_dbg_info(ah); + spin_unlock(&common->cc_lock); + goto chip_reset; } diff --git a/drivers/net/wireless/ath/ath9k/reg.h b/drivers/net/wireless/ath/ath9k/reg.h index 6d01e50..0176178 100644 --- a/drivers/net/wireless/ath/ath9k/reg.h +++ b/drivers/net/wireless/ath/ath9k/reg.h @@ -107,12 +107,6 @@ #define AR_RXCFG_DMASZ_256B 6 #define AR_RXCFG_DMASZ_512B 7 -#define AR_MIBC 0x0040 -#define AR_MIBC_COW 0x00000001 -#define AR_MIBC_FMC 0x00000002 -#define AR_MIBC_CMC 0x00000004 -#define AR_MIBC_MCS 0x00000008 - #define AR_TOPS 0x0044 #define AR_TOPS_MASK 0x0000FFFF @@ -1524,11 +1518,6 @@ enum { #define AR_TPC_CHIRP 0x003f0000 #define AR_TPC_CHIRP_S 0x16 -#define AR_TFCNT 0x80ec -#define AR_RFCNT 0x80f0 -#define AR_RCCNT 0x80f4 -#define AR_CCCNT 0x80f8 - #define AR_QUIET1 0x80fc #define AR_QUIET1_NEXT_QUIET_S 0 #define AR_QUIET1_NEXT_QUIET_M 0x0000ffff diff --git a/drivers/net/wireless/ath/hw.c b/drivers/net/wireless/ath/hw.c index a8f81ea..183c282 100644 --- a/drivers/net/wireless/ath/hw.c +++ b/drivers/net/wireless/ath/hw.c @@ -124,3 +124,62 @@ void ath_hw_setbssidmask(struct ath_common *common) REG_WRITE(ah, get_unaligned_le16(common->bssidmask + 4), AR_BSSMSKU); } EXPORT_SYMBOL(ath_hw_setbssidmask); + + +/** + * ath_hw_cycle_counters_update - common function to update cycle counters + * + * @common: the ath_common struct for the device. + * + * This function is used to update all cycle counters in one place. + * It has to be called while holding common->cc_lock! + */ +void ath_hw_cycle_counters_update(struct ath_common *common) +{ + u32 cycles, busy, rx, tx; + void *ah = common->ah; + + /* freeze */ + REG_WRITE(ah, AR_MIBC_FMC, AR_MIBC); + + /* read */ + cycles = REG_READ(ah, AR_CCCNT); + busy = REG_READ(ah, AR_RCCNT); + rx = REG_READ(ah, AR_RFCNT); + tx = REG_READ(ah, AR_TFCNT); + + /* clear */ + REG_WRITE(ah, 0, AR_CCCNT); + REG_WRITE(ah, 0, AR_RFCNT); + REG_WRITE(ah, 0, AR_RCCNT); + REG_WRITE(ah, 0, AR_TFCNT); + + /* unfreeze */ + REG_WRITE(ah, 0, AR_MIBC); + + /* update all cycle counters here */ + common->cc_ani.cycles += cycles; + common->cc_ani.rx_busy += busy; + common->cc_ani.rx_frame += rx; + common->cc_ani.tx_frame += tx; + + common->cc_survey.cycles += cycles; + common->cc_survey.rx_busy += busy; + common->cc_survey.rx_frame += rx; + common->cc_survey.tx_frame += tx; +} +EXPORT_SYMBOL(ath_hw_cycle_counters_update); + +int32_t ath_hw_get_listen_time(struct ath_common *common) +{ + struct ath_cycle_counters *cc = &common->cc_ani; + int32_t listen_time; + + listen_time = (cc->cycles - cc->rx_frame - cc->tx_frame) / + (common->clockrate * 1000); + + memset(cc, 0, sizeof(*cc)); + + return listen_time; +} +EXPORT_SYMBOL(ath_hw_get_listen_time); diff --git a/drivers/net/wireless/ath/reg.h b/drivers/net/wireless/ath/reg.h index e798ef4..298e53f 100644 --- a/drivers/net/wireless/ath/reg.h +++ b/drivers/net/wireless/ath/reg.h @@ -17,6 +17,12 @@ #ifndef ATH_REGISTERS_H #define ATH_REGISTERS_H +#define AR_MIBC 0x0040 +#define AR_MIBC_COW 0x00000001 +#define AR_MIBC_FMC 0x00000002 +#define AR_MIBC_CMC 0x00000004 +#define AR_MIBC_MCS 0x00000008 + /* * BSSID mask registers. See ath_hw_set_bssid_mask() * for detailed documentation about these registers. @@ -24,6 +30,11 @@ #define AR_BSSMSKL 0x80e0 #define AR_BSSMSKU 0x80e4 +#define AR_TFCNT 0x80ec +#define AR_RFCNT 0x80f0 +#define AR_RCCNT 0x80f4 +#define AR_CCCNT 0x80f8 + #define AR_KEYTABLE_0 0x8800 #define AR_KEYTABLE(_n) (AR_KEYTABLE_0 + ((_n)*32)) #define AR_KEY_CACHE_SIZE 128 |
