diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath9k')
50 files changed, 1851 insertions, 698 deletions
diff --git a/drivers/net/wireless/ath/ath9k/Makefile b/drivers/net/wireless/ath/ath9k/Makefile index 27d95fe5ade0..3f0b84723789 100644 --- a/drivers/net/wireless/ath/ath9k/Makefile +++ b/drivers/net/wireless/ath/ath9k/Makefile @@ -11,7 +11,10 @@ ath9k-$(CONFIG_ATH9K_PCI) += pci.o ath9k-$(CONFIG_ATH9K_AHB) += ahb.o ath9k-$(CONFIG_ATH9K_DEBUGFS) += debug.o ath9k-$(CONFIG_ATH9K_DFS_DEBUGFS) += dfs_debug.o -ath9k-$(CONFIG_ATH9K_DFS_CERTIFIED) += dfs.o +ath9k-$(CONFIG_ATH9K_DFS_CERTIFIED) += \ + dfs.o \ + dfs_pattern_detector.o \ + dfs_pri_detector.o obj-$(CONFIG_ATH9K) += ath9k.o diff --git a/drivers/net/wireless/ath/ath9k/ani.c b/drivers/net/wireless/ath/ath9k/ani.c index 7e0ea4e98334..b4c77f9d7470 100644 --- a/drivers/net/wireless/ath/ath9k/ani.c +++ b/drivers/net/wireless/ath/ath9k/ani.c @@ -46,8 +46,8 @@ static const struct ani_ofdm_level_entry ofdm_level_table[] = { { 5, 4, 1 }, /* lvl 5 */ { 6, 5, 1 }, /* lvl 6 */ { 7, 6, 1 }, /* lvl 7 */ - { 7, 7, 1 }, /* lvl 8 */ - { 7, 8, 0 } /* lvl 9 */ + { 7, 6, 0 }, /* lvl 8 */ + { 7, 7, 0 } /* lvl 9 */ }; #define ATH9K_ANI_OFDM_NUM_LEVEL \ ARRAY_SIZE(ofdm_level_table) @@ -91,8 +91,8 @@ static const struct ani_cck_level_entry cck_level_table[] = { { 4, 0 }, /* lvl 4 */ { 5, 0 }, /* lvl 5 */ { 6, 0 }, /* lvl 6 */ - { 7, 0 }, /* lvl 7 (only for high rssi) */ - { 8, 0 } /* lvl 8 (only for high rssi) */ + { 6, 0 }, /* lvl 7 (only for high rssi) */ + { 7, 0 } /* lvl 8 (only for high rssi) */ }; #define ATH9K_ANI_CCK_NUM_LEVEL \ @@ -274,7 +274,9 @@ static void ath9k_hw_set_ofdm_nil(struct ath_hw *ah, u8 immunityLevel) aniState->rssiThrLow, aniState->rssiThrHigh); if (aniState->update_ani) - aniState->ofdmNoiseImmunityLevel = immunityLevel; + aniState->ofdmNoiseImmunityLevel = + (immunityLevel > ATH9K_ANI_OFDM_DEF_LEVEL) ? + immunityLevel : ATH9K_ANI_OFDM_DEF_LEVEL; entry_ofdm = &ofdm_level_table[aniState->ofdmNoiseImmunityLevel]; entry_cck = &cck_level_table[aniState->cckNoiseImmunityLevel]; @@ -290,16 +292,9 @@ static void ath9k_hw_set_ofdm_nil(struct ath_hw *ah, u8 immunityLevel) ATH9K_ANI_FIRSTEP_LEVEL, entry_ofdm->fir_step_level); - if ((ah->opmode != NL80211_IFTYPE_STATION && - ah->opmode != NL80211_IFTYPE_ADHOC) || - aniState->noiseFloor <= aniState->rssiThrHigh) { - if (aniState->ofdmWeakSigDetectOff) - /* force on ofdm weak sig detect */ - ath9k_hw_ani_control(ah, - ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION, - true); - else if (aniState->ofdmWeakSigDetectOff == - entry_ofdm->ofdm_weak_signal_on) + if ((aniState->noiseFloor >= aniState->rssiThrHigh) && + (!aniState->ofdmWeakSigDetectOff != + entry_ofdm->ofdm_weak_signal_on)) { ath9k_hw_ani_control(ah, ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION, entry_ofdm->ofdm_weak_signal_on); @@ -347,7 +342,9 @@ static void ath9k_hw_set_cck_nil(struct ath_hw *ah, u_int8_t immunityLevel) immunityLevel = ATH9K_ANI_CCK_MAX_LEVEL_LOW_RSSI; if (aniState->update_ani) - aniState->cckNoiseImmunityLevel = immunityLevel; + aniState->cckNoiseImmunityLevel = + (immunityLevel > ATH9K_ANI_CCK_DEF_LEVEL) ? + immunityLevel : ATH9K_ANI_CCK_DEF_LEVEL; entry_ofdm = &ofdm_level_table[aniState->ofdmNoiseImmunityLevel]; entry_cck = &cck_level_table[aniState->cckNoiseImmunityLevel]; @@ -717,26 +714,30 @@ void ath9k_hw_ani_monitor(struct ath_hw *ah, struct ath9k_channel *chan) ofdmPhyErrRate, aniState->cckNoiseImmunityLevel, cckPhyErrRate, aniState->ofdmsTurn); - if (aniState->listenTime > 5 * ah->aniperiod) { - if (ofdmPhyErrRate <= ah->config.ofdm_trig_low && - cckPhyErrRate <= ah->config.cck_trig_low) { + if (aniState->listenTime > ah->aniperiod) { + if (cckPhyErrRate < ah->config.cck_trig_low && + ((ofdmPhyErrRate < ah->config.ofdm_trig_low && + aniState->ofdmNoiseImmunityLevel < + ATH9K_ANI_OFDM_DEF_LEVEL) || + (ofdmPhyErrRate < ATH9K_ANI_OFDM_TRIG_LOW_ABOVE_INI && + aniState->ofdmNoiseImmunityLevel >= + ATH9K_ANI_OFDM_DEF_LEVEL))) { ath9k_hw_ani_lower_immunity(ah); aniState->ofdmsTurn = !aniState->ofdmsTurn; - } - ath9k_ani_restart(ah); - } else if (aniState->listenTime > ah->aniperiod) { - /* check to see if need to raise immunity */ - if (ofdmPhyErrRate > ah->config.ofdm_trig_high && - (cckPhyErrRate <= ah->config.cck_trig_high || - aniState->ofdmsTurn)) { + } else if ((ofdmPhyErrRate > ah->config.ofdm_trig_high && + aniState->ofdmNoiseImmunityLevel >= + ATH9K_ANI_OFDM_DEF_LEVEL) || + (ofdmPhyErrRate > + ATH9K_ANI_OFDM_TRIG_HIGH_BELOW_INI && + aniState->ofdmNoiseImmunityLevel < + ATH9K_ANI_OFDM_DEF_LEVEL)) { ath9k_hw_ani_ofdm_err_trigger(ah); - ath9k_ani_restart(ah); aniState->ofdmsTurn = false; } else if (cckPhyErrRate > ah->config.cck_trig_high) { ath9k_hw_ani_cck_err_trigger(ah); - ath9k_ani_restart(ah); aniState->ofdmsTurn = true; } + ath9k_ani_restart(ah); } } EXPORT_SYMBOL(ath9k_hw_ani_monitor); diff --git a/drivers/net/wireless/ath/ath9k/ani.h b/drivers/net/wireless/ath/ath9k/ani.h index 83029d6c7b22..72e2b874e179 100644 --- a/drivers/net/wireless/ath/ath9k/ani.h +++ b/drivers/net/wireless/ath/ath9k/ani.h @@ -25,11 +25,13 @@ /* units are errors per second */ #define ATH9K_ANI_OFDM_TRIG_HIGH_OLD 500 -#define ATH9K_ANI_OFDM_TRIG_HIGH_NEW 1000 +#define ATH9K_ANI_OFDM_TRIG_HIGH_NEW 3500 +#define ATH9K_ANI_OFDM_TRIG_HIGH_BELOW_INI 1000 /* units are errors per second */ #define ATH9K_ANI_OFDM_TRIG_LOW_OLD 200 #define ATH9K_ANI_OFDM_TRIG_LOW_NEW 400 +#define ATH9K_ANI_OFDM_TRIG_LOW_ABOVE_INI 900 /* units are errors per second */ #define ATH9K_ANI_CCK_TRIG_HIGH_OLD 200 @@ -53,7 +55,7 @@ #define ATH9K_ANI_RSSI_THR_LOW 7 #define ATH9K_ANI_PERIOD_OLD 100 -#define ATH9K_ANI_PERIOD_NEW 1000 +#define ATH9K_ANI_PERIOD_NEW 300 /* in ms */ #define ATH9K_ANI_POLLINTERVAL_OLD 100 diff --git a/drivers/net/wireless/ath/ath9k/ar5008_phy.c b/drivers/net/wireless/ath/ath9k/ar5008_phy.c index d7d8e9199140..c7492c6a2519 100644 --- a/drivers/net/wireless/ath/ath9k/ar5008_phy.c +++ b/drivers/net/wireless/ath/ath9k/ar5008_phy.c @@ -245,7 +245,6 @@ static int ar5008_hw_set_channel(struct ath_hw *ah, struct ath9k_channel *chan) REG_WRITE(ah, AR_PHY(0x37), reg32); ah->curchan = chan; - ah->curchan_rad_index = -1; return 0; } @@ -619,19 +618,10 @@ static void ar5008_hw_init_bb(struct ath_hw *ah, u32 synthDelay; synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY; - if (IS_CHAN_B(chan)) - synthDelay = (4 * synthDelay) / 22; - else - synthDelay /= 10; - - if (IS_CHAN_HALF_RATE(chan)) - synthDelay *= 2; - else if (IS_CHAN_QUARTER_RATE(chan)) - synthDelay *= 4; REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN); - udelay(synthDelay + BASE_ACTIVATE_DELAY); + ath9k_hw_synth_delay(ah, chan, synthDelay); } static void ar5008_hw_init_chain_masks(struct ath_hw *ah) @@ -869,7 +859,7 @@ static int ar5008_hw_process_ini(struct ath_hw *ah, ar5008_hw_set_channel_regs(ah, chan); ar5008_hw_init_chain_masks(ah); ath9k_olc_init(ah); - ath9k_hw_apply_txpower(ah, chan); + ath9k_hw_apply_txpower(ah, chan, false); /* Write analog registers */ if (!ath9k_hw_set_rf_regs(ah, chan, freqIndex)) { @@ -949,12 +939,8 @@ static bool ar5008_hw_rfbus_req(struct ath_hw *ah) static void ar5008_hw_rfbus_done(struct ath_hw *ah) { u32 synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY; - if (IS_CHAN_B(ah->curchan)) - synthDelay = (4 * synthDelay) / 22; - else - synthDelay /= 10; - udelay(synthDelay + BASE_ACTIVATE_DELAY); + ath9k_hw_synth_delay(ah, ah->curchan, synthDelay); REG_WRITE(ah, AR_PHY_RFBUS_REQ, 0); } @@ -1047,46 +1033,8 @@ static bool ar5008_hw_ani_control_old(struct ath_hw *ah, break; } case ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION:{ - static const int m1ThreshLow[] = { 127, 50 }; - static const int m2ThreshLow[] = { 127, 40 }; - static const int m1Thresh[] = { 127, 0x4d }; - static const int m2Thresh[] = { 127, 0x40 }; - static const int m2CountThr[] = { 31, 16 }; - static const int m2CountThrLow[] = { 63, 48 }; u32 on = param ? 1 : 0; - REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW, - AR_PHY_SFCORR_LOW_M1_THRESH_LOW, - m1ThreshLow[on]); - REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW, - AR_PHY_SFCORR_LOW_M2_THRESH_LOW, - m2ThreshLow[on]); - REG_RMW_FIELD(ah, AR_PHY_SFCORR, - AR_PHY_SFCORR_M1_THRESH, - m1Thresh[on]); - REG_RMW_FIELD(ah, AR_PHY_SFCORR, - AR_PHY_SFCORR_M2_THRESH, - m2Thresh[on]); - REG_RMW_FIELD(ah, AR_PHY_SFCORR, - AR_PHY_SFCORR_M2COUNT_THR, - m2CountThr[on]); - REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW, - AR_PHY_SFCORR_LOW_M2COUNT_THR_LOW, - m2CountThrLow[on]); - - REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT, - AR_PHY_SFCORR_EXT_M1_THRESH_LOW, - m1ThreshLow[on]); - REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT, - AR_PHY_SFCORR_EXT_M2_THRESH_LOW, - m2ThreshLow[on]); - REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT, - AR_PHY_SFCORR_EXT_M1_THRESH, - m1Thresh[on]); - REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT, - AR_PHY_SFCORR_EXT_M2_THRESH, - m2Thresh[on]); - if (on) REG_SET_BIT(ah, AR_PHY_SFCORR_LOW, AR_PHY_SFCORR_LOW_USE_SELF_CORR_LOW); diff --git a/drivers/net/wireless/ath/ath9k/ar9002_mac.c b/drivers/net/wireless/ath/ath9k/ar9002_mac.c index aa2abaf31cba..8d78253c26ce 100644 --- a/drivers/net/wireless/ath/ath9k/ar9002_mac.c +++ b/drivers/net/wireless/ath/ath9k/ar9002_mac.c @@ -136,6 +136,7 @@ static bool ar9002_hw_get_isr(struct ath_hw *ah, enum ath9k_int *masked) } if (sync_cause) { + ath9k_debug_sync_cause(common, sync_cause); fatal_int = (sync_cause & (AR_INTR_SYNC_HOST1_FATAL | AR_INTR_SYNC_HOST1_PERR)) diff --git a/drivers/net/wireless/ath/ath9k/ar9002_phy.c b/drivers/net/wireless/ath/ath9k/ar9002_phy.c index 3cbbb033fcea..846dd7974eb8 100644 --- a/drivers/net/wireless/ath/ath9k/ar9002_phy.c +++ b/drivers/net/wireless/ath/ath9k/ar9002_phy.c @@ -152,7 +152,6 @@ static int ar9002_hw_set_channel(struct ath_hw *ah, struct ath9k_channel *chan) REG_WRITE(ah, AR_PHY_SYNTH_CONTROL, reg32); ah->curchan = chan; - ah->curchan_rad_index = -1; return 0; } diff --git a/drivers/net/wireless/ath/ath9k/ar9003_2p2_initvals.h b/drivers/net/wireless/ath/ath9k/ar9003_2p2_initvals.h index 46c79a3d4737..952cb2b4656b 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_2p2_initvals.h +++ b/drivers/net/wireless/ath/ath9k/ar9003_2p2_initvals.h @@ -777,11 +777,11 @@ static const u32 ar9300Common_rx_gain_table_2p2[][2] = { {0x0000a074, 0x00000000}, {0x0000a078, 0x00000000}, {0x0000a07c, 0x00000000}, - {0x0000a080, 0x22222229}, - {0x0000a084, 0x1d1d1d1d}, - {0x0000a088, 0x1d1d1d1d}, - {0x0000a08c, 0x1d1d1d1d}, - {0x0000a090, 0x171d1d1d}, + {0x0000a080, 0x1a1a1a1a}, + {0x0000a084, 0x1a1a1a1a}, + {0x0000a088, 0x1a1a1a1a}, + {0x0000a08c, 0x1a1a1a1a}, + {0x0000a090, 0x171a1a1a}, {0x0000a094, 0x11111717}, {0x0000a098, 0x00030311}, {0x0000a09c, 0x00000000}, diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c index 63089cc1fafd..9fdd70fcaf5b 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c @@ -892,34 +892,6 @@ static void ar9003_hw_tx_iq_cal_reload(struct ath_hw *ah) AR_PHY_RX_IQCAL_CORR_B0_LOOPBACK_IQCORR_EN, 0x1); } -static bool ar9003_hw_rtt_restore(struct ath_hw *ah, struct ath9k_channel *chan) -{ - struct ath9k_rtt_hist *hist; - u32 *table; - int i; - bool restore; - - if (!ah->caldata) - return false; - - hist = &ah->caldata->rtt_hist; - if (!hist->num_readings) - return false; - - ar9003_hw_rtt_enable(ah); - ar9003_hw_rtt_set_mask(ah, 0x00); - for (i = 0; i < AR9300_MAX_CHAINS; i++) { - if (!(ah->rxchainmask & (1 << i))) - continue; - table = &hist->table[i][hist->num_readings][0]; - ar9003_hw_rtt_load_hist(ah, i, table); - } - restore = ar9003_hw_rtt_force_restore(ah); - ar9003_hw_rtt_disable(ah); - - return restore; -} - static bool ar9003_hw_init_cal(struct ath_hw *ah, struct ath9k_channel *chan) { @@ -942,9 +914,10 @@ static bool ar9003_hw_init_cal(struct ath_hw *ah, if (!ar9003_hw_rtt_restore(ah, chan)) run_rtt_cal = true; - ath_dbg(common, CALIBRATE, "RTT restore %s\n", - run_rtt_cal ? "failed" : "succeed"); + if (run_rtt_cal) + ath_dbg(common, CALIBRATE, "RTT calibration to be done\n"); } + run_agc_cal = run_rtt_cal; if (run_rtt_cal) { @@ -1000,10 +973,12 @@ static bool ar9003_hw_init_cal(struct ath_hw *ah, if (mci && IS_CHAN_2GHZ(chan) && run_agc_cal) ar9003_mci_init_cal_req(ah, &is_reusable); - txiqcal_done = ar9003_hw_tx_iq_cal_run(ah); - REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS); - udelay(5); - REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN); + if (!(IS_CHAN_HALF_RATE(chan) || IS_CHAN_QUARTER_RATE(chan))) { + txiqcal_done = ar9003_hw_tx_iq_cal_run(ah); + REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS); + udelay(5); + REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN); + } skip_tx_iqcal: if (run_agc_cal || !(ah->ah_flags & AH_FASTCC)) { @@ -1067,17 +1042,14 @@ skip_tx_iqcal: #undef CL_TAB_ENTRY if (run_rtt_cal && caldata) { - struct ath9k_rtt_hist *hist = &caldata->rtt_hist; - if (is_reusable && (hist->num_readings < RTT_HIST_MAX)) { - u32 *table; + if (is_reusable) { + if (!ath9k_hw_rfbus_req(ah)) + ath_err(ath9k_hw_common(ah), + "Could not stop baseband\n"); + else + ar9003_hw_rtt_fill_hist(ah); - hist->num_readings++; - for (i = 0; i < AR9300_MAX_CHAINS; i++) { - if (!(ah->rxchainmask & (1 << i))) - continue; - table = &hist->table[i][hist->num_readings][0]; - ar9003_hw_rtt_fill_hist(ah, i, table); - } + ath9k_hw_rfbus_done(ah); } ar9003_hw_rtt_disable(ah); diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c index 6bb4db052bb0..ac53d901801d 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c @@ -30,11 +30,6 @@ #define CTL_11A_EXT (CTL_11A | EXT_ADDITIVE) #define CTL_11G_EXT (CTL_11G | EXT_ADDITIVE) #define CTL_11B_EXT (CTL_11B | EXT_ADDITIVE) -#define REDUCE_SCALED_POWER_BY_TWO_CHAIN 6 /* 10*log10(2)*2 */ -#define REDUCE_SCALED_POWER_BY_THREE_CHAIN 9 /* 10*log10(3)*2 */ -#define PWRINCR_3_TO_1_CHAIN 9 /* 10*log(3)*2 */ -#define PWRINCR_3_TO_2_CHAIN 3 /* floor(10*log(3/2)*2) */ -#define PWRINCR_2_TO_1_CHAIN 6 /* 10*log(2)*2 */ #define SUB_NUM_CTL_MODES_AT_5G_40 2 /* excluding HT40, EXT-OFDM */ #define SUB_NUM_CTL_MODES_AT_2G_40 3 /* excluding HT40, EXT-OFDM, EXT-CCK */ @@ -2936,15 +2931,6 @@ static const struct ar9300_eeprom *ar9003_eeprom_struct_find_by_id(int id) #undef N_LOOP } - -static u16 ath9k_hw_fbin2freq(u8 fbin, bool is2GHz) -{ - if (fbin == AR5416_BCHAN_UNUSED) - return fbin; - - return (u16) ((is2GHz) ? (2300 + fbin) : (4800 + 5 * fbin)); -} - static int ath9k_hw_ar9300_check_eeprom(struct ath_hw *ah) { return 0; @@ -4070,7 +4056,7 @@ static u8 ar9003_hw_eeprom_get_tgt_pwr(struct ath_hw *ah, * targetpower piers stored on eeprom */ for (i = 0; i < numPiers; i++) { - freqArray[i] = FBIN2FREQ(pFreqBin[i], is2GHz); + freqArray[i] = ath9k_hw_fbin2freq(pFreqBin[i], is2GHz); targetPowerArray[i] = pEepromTargetPwr[i].tPow2x[rateIndex]; } @@ -4106,7 +4092,7 @@ static u8 ar9003_hw_eeprom_get_ht20_tgt_pwr(struct ath_hw *ah, * from targetpower piers stored on eeprom */ for (i = 0; i < numPiers; i++) { - freqArray[i] = FBIN2FREQ(pFreqBin[i], is2GHz); + freqArray[i] = ath9k_hw_fbin2freq(pFreqBin[i], is2GHz); targetPowerArray[i] = pEepromTargetPwr[i].tPow2x[rateIndex]; } @@ -4142,7 +4128,7 @@ static u8 ar9003_hw_eeprom_get_ht40_tgt_pwr(struct ath_hw *ah, * targetpower piers stored on eeprom */ for (i = 0; i < numPiers; i++) { - freqArray[i] = FBIN2FREQ(pFreqBin[i], is2GHz); + freqArray[i] = ath9k_hw_fbin2freq(pFreqBin[i], is2GHz); targetPowerArray[i] = pEepromTargetPwr[i].tPow2x[rateIndex]; } @@ -4167,7 +4153,7 @@ static u8 ar9003_hw_eeprom_get_cck_tgt_pwr(struct ath_hw *ah, * targetpower piers stored on eeprom */ for (i = 0; i < numPiers; i++) { - freqArray[i] = FBIN2FREQ(pFreqBin[i], 1); + freqArray[i] = ath9k_hw_fbin2freq(pFreqBin[i], 1); targetPowerArray[i] = pEepromTargetPwr[i].tPow2x[rateIndex]; } @@ -4295,18 +4281,10 @@ static int ar9003_hw_tx_power_regwrite(struct ath_hw *ah, u8 * pPwrArray) #undef POW_SM } -static void ar9003_hw_set_target_power_eeprom(struct ath_hw *ah, u16 freq, - u8 *targetPowerValT2) +static void ar9003_hw_get_legacy_target_powers(struct ath_hw *ah, u16 freq, + u8 *targetPowerValT2, + bool is2GHz) { - /* XXX: hard code for now, need to get from eeprom struct */ - u8 ht40PowerIncForPdadc = 0; - bool is2GHz = false; - unsigned int i = 0; - struct ath_common *common = ath9k_hw_common(ah); - - if (freq < 4000) - is2GHz = true; - targetPowerValT2[ALL_TARGET_LEGACY_6_24] = ar9003_hw_eeprom_get_tgt_pwr(ah, LEGACY_TARGET_RATE_6_24, freq, is2GHz); @@ -4319,6 +4297,11 @@ static void ar9003_hw_set_target_power_eeprom(struct ath_hw *ah, u16 freq, targetPowerValT2[ALL_TARGET_LEGACY_54] = ar9003_hw_eeprom_get_tgt_pwr(ah, LEGACY_TARGET_RATE_54, freq, is2GHz); +} + +static void ar9003_hw_get_cck_target_powers(struct ath_hw *ah, u16 freq, + u8 *targetPowerValT2) +{ targetPowerValT2[ALL_TARGET_LEGACY_1L_5L] = ar9003_hw_eeprom_get_cck_tgt_pwr(ah, LEGACY_TARGET_RATE_1L_5L, freq); @@ -4328,6 +4311,11 @@ static void ar9003_hw_set_target_power_eeprom(struct ath_hw *ah, u16 freq, ar9003_hw_eeprom_get_cck_tgt_pwr(ah, LEGACY_TARGET_RATE_11L, freq); targetPowerValT2[ALL_TARGET_LEGACY_11S] = ar9003_hw_eeprom_get_cck_tgt_pwr(ah, LEGACY_TARGET_RATE_11S, freq); +} + +static void ar9003_hw_get_ht20_target_powers(struct ath_hw *ah, u16 freq, + u8 *targetPowerValT2, bool is2GHz) +{ targetPowerValT2[ALL_TARGET_HT20_0_8_16] = ar9003_hw_eeprom_get_ht20_tgt_pwr(ah, HT_TARGET_RATE_0_8_16, freq, is2GHz); @@ -4370,6 +4358,16 @@ static void ar9003_hw_set_target_power_eeprom(struct ath_hw *ah, u16 freq, targetPowerValT2[ALL_TARGET_HT20_23] = ar9003_hw_eeprom_get_ht20_tgt_pwr(ah, HT_TARGET_RATE_23, freq, is2GHz); +} + +static void ar9003_hw_get_ht40_target_powers(struct ath_hw *ah, + u16 freq, + u8 *targetPowerValT2, + bool is2GHz) +{ + /* XXX: hard code for now, need to get from eeprom struct */ + u8 ht40PowerIncForPdadc = 0; + targetPowerValT2[ALL_TARGET_HT40_0_8_16] = ar9003_hw_eeprom_get_ht40_tgt_pwr(ah, HT_TARGET_RATE_0_8_16, freq, is2GHz) + ht40PowerIncForPdadc; @@ -4413,6 +4411,26 @@ static void ar9003_hw_set_target_power_eeprom(struct ath_hw *ah, u16 freq, targetPowerValT2[ALL_TARGET_HT40_23] = ar9003_hw_eeprom_get_ht40_tgt_pwr(ah, HT_TARGET_RATE_23, freq, is2GHz) + ht40PowerIncForPdadc; +} + +static void ar9003_hw_get_target_power_eeprom(struct ath_hw *ah, + struct ath9k_channel *chan, + u8 *targetPowerValT2) +{ + bool is2GHz = IS_CHAN_2GHZ(chan); + unsigned int i = 0; + struct ath_common *common = ath9k_hw_common(ah); + u16 freq = chan->channel; + + if (is2GHz) + ar9003_hw_get_cck_target_powers(ah, freq, targetPowerValT2); + + ar9003_hw_get_legacy_target_powers(ah, freq, targetPowerValT2, is2GHz); + ar9003_hw_get_ht20_target_powers(ah, freq, targetPowerValT2, is2GHz); + + if (IS_CHAN_HT40(chan)) + ar9003_hw_get_ht40_target_powers(ah, freq, targetPowerValT2, + is2GHz); for (i = 0; i < ar9300RateSize; i++) { ath_dbg(common, EEPROM, "TPC[%02d] 0x%08x\n", @@ -4464,7 +4482,7 @@ static int ar9003_hw_cal_pier_get(struct ath_hw *ah, is2GHz = 1; } - *pfrequency = FBIN2FREQ(*pCalPier, is2GHz); + *pfrequency = ath9k_hw_fbin2freq(*pCalPier, is2GHz); *pcorrection = pCalPierStruct->refPower; *ptemperature = pCalPierStruct->tempMeas; *pvoltage = pCalPierStruct->voltMeas; @@ -4789,34 +4807,9 @@ static void ar9003_hw_set_power_per_rate_table(struct ath_hw *ah, bool is2ghz = IS_CHAN_2GHZ(chan); ath9k_hw_get_channel_centers(ah, chan, ¢ers); - scaledPower = powerLimit - antenna_reduction; - - /* - * Reduce scaled Power by number of chains active to get - * to per chain tx power level - */ - switch (ar5416_get_ntxchains(ah->txchainmask)) { - case 1: - break; - case 2: - if (scaledPower > REDUCE_SCALED_POWER_BY_TWO_CHAIN) - scaledPower -= REDUCE_SCALED_POWER_BY_TWO_CHAIN; - else - scaledPower = 0; - break; - case 3: - if (scaledPower > REDUCE_SCALED_POWER_BY_THREE_CHAIN) - scaledPower -= REDUCE_SCALED_POWER_BY_THREE_CHAIN; - else - scaledPower = 0; - break; - } + scaledPower = ath9k_hw_get_scaled_power(ah, powerLimit, + antenna_reduction); - scaledPower = max((u16)0, scaledPower); - - /* - * Get target powers from EEPROM - our baseline for TX Power - */ if (is2ghz) { /* Setup for CTL modes */ /* CTL_11B, CTL_11G, CTL_2GHT20 */ @@ -4988,7 +4981,12 @@ static void ath9k_hw_ar9300_set_txpower(struct ath_hw *ah, unsigned int i = 0, paprd_scale_factor = 0; u8 pwr_idx, min_pwridx = 0; - ar9003_hw_set_target_power_eeprom(ah, chan->channel, targetPowerValT2); + memset(targetPowerValT2, 0 , sizeof(targetPowerValT2)); + + /* + * Get target powers from EEPROM - our baseline for TX Power + */ + ar9003_hw_get_target_power_eeprom(ah, chan, targetPowerValT2); if (ah->eep_ops->get_eeprom(ah, EEP_PAPRD)) { if (IS_CHAN_2GHZ(chan)) @@ -5060,8 +5058,6 @@ static void ath9k_hw_ar9300_set_txpower(struct ath_hw *ah, i, targetPowerValT2[i]); } - ah->txpower_limit = regulatory->max_power_level; - /* Write target power array to registers */ ar9003_hw_tx_power_regwrite(ah, targetPowerValT2); ar9003_hw_calibration_apply(ah, chan->channel); diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h index bb223fe82816..2505ac44f0c1 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h +++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h @@ -42,7 +42,6 @@ #define AR9300_EEPMISC_WOW 0x02 #define AR9300_CUSTOMER_DATA_SIZE 20 -#define FBIN2FREQ(x, y) ((y) ? (2300 + x) : (4800 + 5 * x)) #define AR9300_MAX_CHAINS 3 #define AR9300_ANT_16S 25 #define AR9300_FUTURE_MODAL_SZ 6 diff --git a/drivers/net/wireless/ath/ath9k/ar9003_hw.c b/drivers/net/wireless/ath/ath9k/ar9003_hw.c index 0f56e322dd3b..a0e3394b10dc 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_hw.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_hw.c @@ -305,11 +305,6 @@ static void ar9003_hw_init_mode_regs(struct ath_hw *ah) ar9462_common_rx_gain_table_2p0, ARRAY_SIZE(ar9462_common_rx_gain_table_2p0), 2); - INIT_INI_ARRAY(&ah->ini_BTCOEX_MAX_TXPWR, - ar9462_2p0_BTCOEX_MAX_TXPWR_table, - ARRAY_SIZE(ar9462_2p0_BTCOEX_MAX_TXPWR_table), - 2); - /* Awake -> Sleep Setting */ INIT_INI_ARRAY(&ah->iniPcieSerdes, PCIE_PLL_ON_CREQ_DIS_L1_2P0, diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mac.c b/drivers/net/wireless/ath/ath9k/ar9003_mac.c index a66a13b76848..d9e0824af093 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c @@ -306,6 +306,8 @@ static bool ar9003_hw_get_isr(struct ath_hw *ah, enum ath9k_int *masked) ar9003_mci_get_isr(ah, masked); if (sync_cause) { + ath9k_debug_sync_cause(common, sync_cause); + if (sync_cause & AR_INTR_SYNC_RADM_CPL_TIMEOUT) { REG_WRITE(ah, AR_RC, AR_RC_HOSTIF); REG_WRITE(ah, AR_RC, 0); diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mci.c b/drivers/net/wireless/ath/ath9k/ar9003_mci.c index 3cac293a2849..ffbb180f91e1 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_mci.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_mci.c @@ -756,7 +756,7 @@ int ar9003_mci_end_reset(struct ath_hw *ah, struct ath9k_channel *chan, if (caldata) { caldata->done_txiqcal_once = false; caldata->done_txclcal_once = false; - caldata->rtt_hist.num_readings = 0; + caldata->rtt_done = false; } if (!ath9k_hw_init_cal(ah, chan)) diff --git a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c index 59647a3ceb7f..3d400e8d6535 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c @@ -54,7 +54,7 @@ void ar9003_paprd_enable(struct ath_hw *ah, bool val) if (val) { ah->paprd_table_write_done = true; - ath9k_hw_apply_txpower(ah, chan); + ath9k_hw_apply_txpower(ah, chan, false); } REG_RMW_FIELD(ah, AR_PHY_PAPRD_CTRL0_B0, diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c index bc992b237ae5..11abb972be1f 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c @@ -152,7 +152,6 @@ static int ar9003_hw_set_channel(struct ath_hw *ah, struct ath9k_channel *chan) REG_WRITE(ah, AR_PHY_65NM_CH0_SYNTH7, reg32); ah->curchan = chan; - ah->curchan_rad_index = -1; return 0; } @@ -209,11 +208,12 @@ static void ar9003_hw_spur_mitigate_mrc_cck(struct ath_hw *ah, continue; negative = 0; if (AR_SREV_9485(ah) || AR_SREV_9340(ah) || AR_SREV_9330(ah)) - cur_bb_spur = FBIN2FREQ(spur_fbin_ptr[i], - IS_CHAN_2GHZ(chan)) - synth_freq; + cur_bb_spur = ath9k_hw_fbin2freq(spur_fbin_ptr[i], + IS_CHAN_2GHZ(chan)); else - cur_bb_spur = spur_freq[i] - synth_freq; + cur_bb_spur = spur_freq[i]; + cur_bb_spur -= synth_freq; if (cur_bb_spur < 0) { negative = 1; cur_bb_spur = -cur_bb_spur; @@ -373,7 +373,7 @@ static void ar9003_hw_spur_ofdm_work(struct ath_hw *ah, else spur_subchannel_sd = 0; - spur_freq_sd = (freq_offset << 9) / 11; + spur_freq_sd = ((freq_offset + 10) << 9) / 11; } else { if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL, @@ -382,7 +382,7 @@ static void ar9003_hw_spur_ofdm_work(struct ath_hw *ah, else spur_subchannel_sd = 1; - spur_freq_sd = (freq_offset << 9) / 11; + spur_freq_sd = ((freq_offset - 10) << 9) / 11; } @@ -443,7 +443,8 @@ static void ar9003_hw_spur_mitigate_ofdm(struct ath_hw *ah, ar9003_hw_spur_ofdm_clear(ah); for (i = 0; i < AR_EEPROM_MODAL_SPURS && spurChansPtr[i]; i++) { - freq_offset = FBIN2FREQ(spurChansPtr[i], mode) - synth_freq; + freq_offset = ath9k_hw_fbin2freq(spurChansPtr[i], mode); + freq_offset -= synth_freq; if (abs(freq_offset) < range) { ar9003_hw_spur_ofdm_work(ah, chan, freq_offset); break; @@ -525,22 +526,10 @@ static void ar9003_hw_init_bb(struct ath_hw *ah, * Value is in 100ns increments. */ synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY; - if (IS_CHAN_B(chan)) - synthDelay = (4 * synthDelay) / 22; - else - synthDelay /= 10; /* Activate the PHY (includes baseband activate + synthesizer on) */ REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN); - - /* - * There is an issue if the AP starts the calibration before - * the base band timeout completes. This could result in the - * rx_clear false triggering. As a workaround we add delay an - * extra BASE_ACTIVATE_DELAY usecs to ensure this condition - * does not happen. - */ - udelay(synthDelay + BASE_ACTIVATE_DELAY); + ath9k_hw_synth_delay(ah, chan, synthDelay); } static void ar9003_hw_set_chain_masks(struct ath_hw *ah, u8 rx, u8 tx) @@ -684,9 +673,6 @@ static int ar9003_hw_process_ini(struct ath_hw *ah, REG_WRITE_ARRAY(&ah->iniAdditional, 1, regWrites); - if (AR_SREV_9462(ah)) - ar9003_hw_prog_ini(ah, &ah->ini_BTCOEX_MAX_TXPWR, 1); - if (chan->channel == 2484) ar9003_hw_prog_ini(ah, &ah->ini_japan2484, 1); @@ -694,7 +680,7 @@ static int ar9003_hw_process_ini(struct ath_hw *ah, ar9003_hw_override_ini(ah); ar9003_hw_set_channel_regs(ah, chan); ar9003_hw_set_chain_masks(ah, ah->rxchainmask, ah->txchainmask); - ath9k_hw_apply_txpower(ah, chan); + ath9k_hw_apply_txpower(ah, chan, false); if (AR_SREV_9462(ah)) { if (REG_READ_FIELD(ah, AR_PHY_TX_IQCAL_CONTROL_0, @@ -725,6 +711,14 @@ static void ar9003_hw_set_rfmode(struct ath_hw *ah, if (IS_CHAN_A_FAST_CLOCK(ah, chan)) rfMode |= (AR_PHY_MODE_DYNAMIC | AR_PHY_MODE_DYN_CCK_DISABLE); + if (IS_CHAN_QUARTER_RATE(chan)) + rfMode |= AR_PHY_MODE_QUARTER; + if (IS_CHAN_HALF_RATE(chan)) + rfMode |= AR_PHY_MODE_HALF; + + if (rfMode & (AR_PHY_MODE_QUARTER | AR_PHY_MODE_HALF)) + REG_RMW_FIELD(ah, AR_PHY_FRAME_CTL, + AR_PHY_FRAME_CTL_CF_OVERLAP_WINDOW, 3); REG_WRITE(ah, AR_PHY_MODE, rfMode); } @@ -795,12 +789,8 @@ static bool ar9003_hw_rfbus_req(struct ath_hw *ah) static void ar9003_hw_rfbus_done(struct ath_hw *ah) { u32 synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY; - if (IS_CHAN_B(ah->curchan)) - synthDelay = (4 * synthDelay) / 22; - else - synthDelay /= 10; - udelay(synthDelay + BASE_ACTIVATE_DELAY); + ath9k_hw_synth_delay(ah, ah->curchan, synthDelay); REG_WRITE(ah, AR_PHY_RFBUS_REQ, 0); } @@ -823,55 +813,6 @@ static bool ar9003_hw_ani_control(struct ath_hw *ah, * on == 0 means more noise imm */ u32 on = param ? 1 : 0; - /* - * make register setting for default - * (weak sig detect ON) come from INI file - */ - int m1ThreshLow = on ? - aniState->iniDef.m1ThreshLow : m1ThreshLow_off; - int m2ThreshLow = on ? - aniState->iniDef.m2ThreshLow : m2ThreshLow_off; - int m1Thresh = on ? - aniState->iniDef.m1Thresh : m1Thresh_off; - int m2Thresh = on ? - aniState->iniDef.m2Thresh : m2Thresh_off; - int m2CountThr = on ? - aniState->iniDef.m2CountThr : m2CountThr_off; - int m2CountThrLow = on ? - aniState->iniDef.m2CountThrLow : m2CountThrLow_off; - int m1ThreshLowExt = on ? - aniState->iniDef.m1ThreshLowExt : m1ThreshLowExt_off; - int m2ThreshLowExt = on ? - aniState->iniDef.m2ThreshLowExt : m2ThreshLowExt_off; - int m1ThreshExt = on ? - aniState->iniDef.m1ThreshExt : m1ThreshExt_off; - int m2ThreshExt = on ? - aniState->iniDef.m2ThreshExt : m2ThreshExt_off; - - REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW, - AR_PHY_SFCORR_LOW_M1_THRESH_LOW, - m1ThreshLow); - REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW, - AR_PHY_SFCORR_LOW_M2_THRESH_LOW, - m2ThreshLow); - REG_RMW_FIELD(ah, AR_PHY_SFCORR, - AR_PHY_SFCORR_M1_THRESH, m1Thresh); - REG_RMW_FIELD(ah, AR_PHY_SFCORR, - AR_PHY_SFCORR_M2_THRESH, m2Thresh); - REG_RMW_FIELD(ah, AR_PHY_SFCORR, - AR_PHY_SFCORR_M2COUNT_THR, m2CountThr); - REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW, - AR_PHY_SFCORR_LOW_M2COUNT_THR_LOW, - m2CountThrLow); - - REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT, - AR_PHY_SFCORR_EXT_M1_THRESH_LOW, m1ThreshLowExt); - REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT, - AR_PHY_SFCORR_EXT_M2_THRESH_LOW, m2ThreshLowExt); - REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT, - AR_PHY_SFCORR_EXT_M1_THRESH, m1ThreshExt); - REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT, - AR_PHY_SFCORR_EXT_M2_THRESH, m2ThreshExt); if (on) REG_SET_BIT(ah, AR_PHY_SFCORR_LOW, diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.h b/drivers/net/wireless/ath/ath9k/ar9003_phy.h index d834d97fe727..7268a48a92a1 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_phy.h +++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.h @@ -468,6 +468,9 @@ #define AR_PHY_ADDAC_PARA_CTL (AR_SM_BASE + 0x150) #define AR_PHY_XPA_CFG (AR_SM_BASE + 0x158) +#define AR_PHY_FRAME_CTL_CF_OVERLAP_WINDOW 3 +#define AR_PHY_FRAME_CTL_CF_OVERLAP_WINDOW_S 0 + #define AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_IDX_A 0x0001FC00 #define AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_IDX_A_S 10 #define AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_A 0x3FF diff --git a/drivers/net/wireless/ath/ath9k/ar9003_rtt.c b/drivers/net/wireless/ath/ath9k/ar9003_rtt.c index 458bedf0b0ae..74de3539c2c8 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_rtt.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_rtt.c @@ -15,6 +15,7 @@ */ #include "hw.h" +#include "hw-ops.h" #include "ar9003_phy.h" #include "ar9003_rtt.h" @@ -69,7 +70,7 @@ bool ar9003_hw_rtt_force_restore(struct ath_hw *ah) } static void ar9003_hw_rtt_load_hist_entry(struct ath_hw *ah, u8 chain, - u32 index, u32 data28) + u32 index, u32 data28) { u32 val; @@ -100,12 +101,21 @@ static void ar9003_hw_rtt_load_hist_entry(struct ath_hw *ah, u8 chain, RTT_ACCESS_TIMEOUT); } -void ar9003_hw_rtt_load_hist(struct ath_hw *ah, u8 chain, u32 *table) +void ar9003_hw_rtt_load_hist(struct ath_hw *ah) { - int i; + int chain, i; - for (i = 0; i < MAX_RTT_TABLE_ENTRY; i++) - ar9003_hw_rtt_load_hist_entry(ah, chain, i, table[i]); + for (chain = 0; chain < AR9300_MAX_CHAINS; chain++) { + if (!(ah->rxchainmask & (1 << chain))) + continue; + for (i = 0; i < MAX_RTT_TABLE_ENTRY; i++) { + ar9003_hw_rtt_load_hist_entry(ah, chain, i, + ah->caldata->rtt_table[chain][i]); + ath_dbg(ath9k_hw_common(ah), CALIBRATE, + "Load RTT value at idx %d, chain %d: 0x%x\n", + i, chain, ah->caldata->rtt_table[chain][i]); + } + } } static int ar9003_hw_rtt_fill_hist_entry(struct ath_hw *ah, u8 chain, u32 index) @@ -128,27 +138,71 @@ static int ar9003_hw_rtt_fill_hist_entry(struct ath_hw *ah, u8 chain, u32 index) RTT_ACCESS_TIMEOUT)) return RTT_BAD_VALUE; - val = REG_READ(ah, AR_PHY_RTT_TABLE_SW_INTF_1_B(chain)); + val = MS(REG_READ(ah, AR_PHY_RTT_TABLE_SW_INTF_1_B(chain)), + AR_PHY_RTT_SW_RTT_TABLE_DATA); + return val; } -void ar9003_hw_rtt_fill_hist(struct ath_hw *ah, u8 chain, u32 *table) +void ar9003_hw_rtt_fill_hist(struct ath_hw *ah) { - int i; + int chain, i; + + for (chain = 0; chain < AR9300_MAX_CHAINS; chain++) { + if (!(ah->rxchainmask & (1 << chain))) + continue; + for (i = 0; i < MAX_RTT_TABLE_ENTRY; i++) { + ah->caldata->rtt_table[chain][i] = + ar9003_hw_rtt_fill_hist_entry(ah, chain, i); + ath_dbg(ath9k_hw_common(ah), CALIBRATE, + "RTT value at idx %d, chain %d is: 0x%x\n", + i, chain, ah->caldata->rtt_table[chain][i]); + } + } - for (i = 0; i < MAX_RTT_TABLE_ENTRY; i++) - table[i] = ar9003_hw_rtt_fill_hist_entry(ah, chain, i); + ah->caldata->rtt_done = true; } void ar9003_hw_rtt_clear_hist(struct ath_hw *ah) { - int i, j; + int chain, i; - for (i = 0; i < AR9300_MAX_CHAINS; i++) { - if (!(ah->rxchainmask & (1 << i))) + for (chain = 0; chain < AR9300_MAX_CHAINS; chain++) { + if (!(ah->rxchainmask & (1 << chain))) continue; - for (j = 0; j < MAX_RTT_TABLE_ENTRY; j++) - ar9003_hw_rtt_load_hist_entry(ah, i, j, 0); + for (i = 0; i < MAX_RTT_TABLE_ENTRY; i++) + ar9003_hw_rtt_load_hist_entry(ah, chain, i, 0); } + + if (ah->caldata) + ah->caldata->rtt_done = false; +} + +bool ar9003_hw_rtt_restore(struct ath_hw *ah, struct ath9k_channel *chan) +{ + bool restore; + + if (!ah->caldata) + return false; + + if (!ah->caldata->rtt_done) + return false; + + ar9003_hw_rtt_enable(ah); + ar9003_hw_rtt_set_mask(ah, 0x10); + + if (!ath9k_hw_rfbus_req(ah)) { + ath_err(ath9k_hw_common(ah), "Could not stop baseband\n"); + restore = false; + goto fail; + } + + ar9003_hw_rtt_load_hist(ah); + restore = ar9003_hw_rtt_force_restore(ah); + +fail: + ath9k_hw_rfbus_done(ah); + ar9003_hw_rtt_disable(ah); + return restore; } diff --git a/drivers/net/wireless/ath/ath9k/ar9003_rtt.h b/drivers/net/wireless/ath/ath9k/ar9003_rtt.h index 030758d087d6..a43b30d723a4 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_rtt.h +++ b/drivers/net/wireless/ath/ath9k/ar9003_rtt.h @@ -21,8 +21,9 @@ void ar9003_hw_rtt_enable(struct ath_hw *ah); void ar9003_hw_rtt_disable(struct ath_hw *ah); void ar9003_hw_rtt_set_mask(struct ath_hw *ah, u32 rtt_mask); bool ar9003_hw_rtt_force_restore(struct ath_hw *ah); -void ar9003_hw_rtt_load_hist(struct ath_hw *ah, u8 chain, u32 *table); -void ar9003_hw_rtt_fill_hist(struct ath_hw *ah, u8 chain, u32 *table); +void ar9003_hw_rtt_load_hist(struct ath_hw *ah); +void ar9003_hw_rtt_fill_hist(struct ath_hw *ah); void ar9003_hw_rtt_clear_hist(struct ath_hw *ah); +bool ar9003_hw_rtt_restore(struct ath_hw *ah, struct ath9k_channel *chan); #endif diff --git a/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h b/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h index b6ba1e8149be..1d6658e139b5 100644 --- a/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h +++ b/drivers/net/wireless/ath/ath9k/ar9462_2p0_initvals.h @@ -1115,9 +1115,9 @@ static const u32 ar9462_2p0_mac_core[][2] = { {0x000081f8, 0x00000000}, {0x000081fc, 0x00000000}, {0x00008240, 0x00100000}, - {0x00008244, 0x0010f400}, + {0x00008244, 0x0010f424}, {0x00008248, 0x00000800}, - {0x0000824c, 0x0001e800}, + {0x0000824c, 0x0001e848}, {0x00008250, 0x00000000}, {0x00008254, 0x00000000}, {0x00008258, 0x00000000}, @@ -1448,16 +1448,4 @@ static const u32 ar9462_common_mixed_rx_gain_table_2p0[][2] = { {0x0000b1fc, 0x00000196}, }; -static const u32 ar9462_2p0_BTCOEX_MAX_TXPWR_table[][2] = { - /* Addr allmodes */ - {0x000018c0, 0x10101010}, - {0x000018c4, 0x10101010}, - {0x000018c8, 0x10101010}, - {0x000018cc, 0x10101010}, - {0x000018d0, 0x10101010}, - {0x000018d4, 0x10101010}, - {0x000018d8, 0x10101010}, - {0x000018dc, 0x10101010}, -}; - #endif /* INITVALS_9462_2P0_H */ diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index 8c84049682ab..a277cf6f339d 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -26,6 +26,7 @@ #include "debug.h" #include "common.h" #include "mci.h" +#include "dfs.h" /* * Header for the ath9k.ko driver core *only* -- hw code nor any other driver @@ -369,7 +370,7 @@ struct ath_vif { * number of beacon intervals, the game's up. */ #define BSTUCK_THRESH 9 -#define ATH_BCBUF 4 +#define ATH_BCBUF 8 #define ATH_DEFAULT_BINTVAL 100 /* TU */ #define ATH_DEFAULT_BMISS_LIMIT 10 #define IEEE80211_MS_TO_TU(x) (((x) * 1000) / 1024) @@ -430,6 +431,8 @@ void ath9k_set_beaconing_status(struct ath_softc *sc, bool status); void ath_reset_work(struct work_struct *work); void ath_hw_check(struct work_struct *work); void ath_hw_pll_work(struct work_struct *work); +void ath_rx_poll(unsigned long data); +void ath_start_rx_poll(struct ath_softc *sc, u8 nbeacon); void ath_paprd_calibrate(struct work_struct *work); void ath_ani_calibrate(unsigned long data); void ath_start_ani(struct ath_common *common); @@ -670,6 +673,7 @@ struct ath_softc { struct ath_beacon_config cur_beacon_conf; struct delayed_work tx_complete_work; struct delayed_work hw_pll_work; + struct timer_list rx_poll_timer; #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT struct ath_btcoex btcoex; @@ -680,6 +684,7 @@ struct ath_softc { struct ath_ant_comb ant_comb; u8 ant_tx, ant_rx; + struct dfs_pattern_detector *dfs_detector; }; void ath9k_tasklet(unsigned long data); diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c index 626418222c85..11bc55e3d697 100644 --- a/drivers/net/wireless/ath/ath9k/beacon.c +++ b/drivers/net/wireless/ath/ath9k/beacon.c @@ -91,7 +91,7 @@ static void ath_beacon_setup(struct ath_softc *sc, struct ieee80211_vif *vif, info.txpower = MAX_RATE_POWER; info.keyix = ATH9K_TXKEYIX_INVALID; info.keytype = ATH9K_KEY_TYPE_CLEAR; - info.flags = ATH9K_TXDESC_NOACK | ATH9K_TXDESC_INTREQ; + info.flags = ATH9K_TXDESC_NOACK | ATH9K_TXDESC_CLRDMASK; info.buf_addr[0] = bf->bf_buf_addr; info.buf_len[0] = roundup(skb->len, 4); @@ -359,6 +359,11 @@ void ath_beacon_tasklet(unsigned long data) int slot; u32 bfaddr, bc = 0; + if (work_pending(&sc->hw_reset_work)) { + ath_dbg(common, RESET, + "reset work is pending, skip beaconing now\n"); + return; + } /* * Check if the previous beacon has gone out. If * not don't try to post another, skip this period @@ -369,6 +374,9 @@ void ath_beacon_tasklet(unsigned long data) if (ath9k_hw_numtxpending(ah, sc->beacon.beaconq) != 0) { sc->beacon.bmisscnt++; + if (!ath9k_hw_check_alive(ah)) + ieee80211_queue_work(sc->hw, &sc->hw_check_work); + if (sc->beacon.bmisscnt < BSTUCK_THRESH * sc->nbcnvifs) { ath_dbg(common, BSTUCK, "missed %u consecutive beacons\n", @@ -378,6 +386,7 @@ void ath_beacon_tasklet(unsigned long data) ath9k_hw_bstuck_nfcal(ah); } else if (sc->beacon.bmisscnt >= BSTUCK_THRESH) { ath_dbg(common, BSTUCK, "beacon is officially stuck\n"); + sc->beacon.bmisscnt = 0; sc->sc_flags |= SC_OP_TSF_RESET; ieee80211_queue_work(sc->hw, &sc->hw_reset_work); } @@ -650,6 +659,8 @@ static void ath_beacon_config_adhoc(struct ath_softc *sc, u32 tsf, intval, nexttbtt; ath9k_reset_beacon_status(sc); + if (!(sc->sc_flags & SC_OP_BEACONS)) + ath9k_hw_settsf64(ah, sc->beacon.bc_tstamp); intval = TU_TO_USEC(conf->beacon_interval); tsf = roundup(ath9k_hw_gettsf32(ah) + TU_TO_USEC(FUDGE), intval); @@ -806,8 +817,10 @@ void ath9k_set_beaconing_status(struct ath_softc *sc, bool status) { struct ath_hw *ah = sc->sc_ah; - if (!ath_has_valid_bslot(sc)) + if (!ath_has_valid_bslot(sc)) { + sc->sc_flags &= ~SC_OP_BEACONS; return; + } ath9k_ps_wakeup(sc); if (status) { diff --git a/drivers/net/wireless/ath/ath9k/btcoex.c b/drivers/net/wireless/ath/ath9k/btcoex.c index ec3271993411..1ca6da80d4ad 100644 --- a/drivers/net/wireless/ath/ath9k/btcoex.c +++ b/drivers/net/wireless/ath/ath9k/btcoex.c @@ -108,9 +108,7 @@ void ath9k_hw_btcoex_init_scheme(struct ath_hw *ah) return; } - if (AR_SREV_9462(ah)) { - btcoex_hw->scheme = ATH_BTCOEX_CFG_MCI; - } else if (AR_SREV_9300_20_OR_LATER(ah)) { + if (AR_SREV_9300_20_OR_LATER(ah)) { btcoex_hw->scheme = ATH_BTCOEX_CFG_3WIRE; btcoex_hw->btactive_gpio = ATH_BTACTIVE_GPIO_9300; btcoex_hw->wlanactive_gpio = ATH_WLANACTIVE_GPIO_9300; @@ -284,11 +282,12 @@ void ath9k_hw_btcoex_enable(struct ath_hw *ah) ath9k_hw_btcoex_enable_2wire(ah); break; case ATH_BTCOEX_CFG_3WIRE: + if (AR_SREV_9462(ah)) { + ath9k_hw_btcoex_enable_mci(ah); + return; + } ath9k_hw_btcoex_enable_3wire(ah); break; - case ATH_BTCOEX_CFG_MCI: - ath9k_hw_btcoex_enable_mci(ah); - return; } REG_RMW(ah, AR_GPIO_PDPU, @@ -305,11 +304,12 @@ void ath9k_hw_btcoex_disable(struct ath_hw *ah) int i; btcoex_hw->enabled = false; - if (btcoex_hw->scheme == ATH_BTCOEX_CFG_MCI) { + if (AR_SREV_9462(ah)) { ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_NONE); for (i = 0; i < AR9300_NUM_BT_WEIGHTS; i++) REG_WRITE(ah, AR_MCI_COEX_WL_WEIGHTS(i), btcoex_hw->wlan_weight[i]); + return; } ath9k_hw_set_gpio(ah, btcoex_hw->wlanactive_gpio, 0); diff --git a/drivers/net/wireless/ath/ath9k/btcoex.h b/drivers/net/wireless/ath/ath9k/btcoex.h index 8f93aef4414f..3a1e1cfabd5e 100644 --- a/drivers/net/wireless/ath/ath9k/btcoex.h +++ b/drivers/net/wireless/ath/ath9k/btcoex.h @@ -51,7 +51,6 @@ enum ath_btcoex_scheme { ATH_BTCOEX_CFG_NONE, ATH_BTCOEX_CFG_2WIRE, ATH_BTCOEX_CFG_3WIRE, - ATH_BTCOEX_CFG_MCI, }; struct ath9k_hw_mci { diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c index ff47b32ecaf4..fde700c4e490 100644 --- a/drivers/net/wireless/ath/ath9k/debug.c +++ b/drivers/net/wireless/ath/ath9k/debug.c @@ -380,63 +380,75 @@ static ssize_t read_file_interrupt(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct ath_softc *sc = file->private_data; - char buf[512]; unsigned int len = 0; + int rv; + int mxlen = 4000; + char *buf = kmalloc(mxlen, GFP_KERNEL); + if (!buf) + return -ENOMEM; + +#define PR_IS(a, s) \ + do { \ + len += snprintf(buf + len, mxlen - len, \ + "%21s: %10u\n", a, \ + sc->debug.stats.istats.s); \ + } while (0) if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) { - len += snprintf(buf + len, sizeof(buf) - len, - "%8s: %10u\n", "RXLP", sc->debug.stats.istats.rxlp); - len += snprintf(buf + len, sizeof(buf) - len, - "%8s: %10u\n", "RXHP", sc->debug.stats.istats.rxhp); - len += snprintf(buf + len, sizeof(buf) - len, - "%8s: %10u\n", "WATCHDOG", - sc->debug.stats.istats.bb_watchdog); + PR_IS("RXLP", rxlp); + PR_IS("RXHP", rxhp); + PR_IS("WATHDOG", bb_watchdog); } else { - len += snprintf(buf + len, sizeof(buf) - len, - "%8s: %10u\n", "RX", sc->debug.stats.istats.rxok); + PR_IS("RX", rxok); } - len += snprintf(buf + len, sizeof(buf) - len, - "%8s: %10u\n", "RXEOL", sc->debug.stats.istats.rxeol); - len += snprintf(buf + len, sizeof(buf) - len, - "%8s: %10u\n", "RXORN", sc->debug.stats.istats.rxorn); - len += snprintf(buf + len, sizeof(buf) - len, - "%8s: %10u\n", "TX", sc->debug.stats.istats.txok); - len += snprintf(buf + len, sizeof(buf) - len, - "%8s: %10u\n", "TXURN", sc->debug.stats.istats.txurn); - len += snprintf(buf + len, sizeof(buf) - len, - "%8s: %10u\n", "MIB", sc->debug.stats.istats.mib); - len += snprintf(buf + len, sizeof(buf) - len, - "%8s: %10u\n", "RXPHY", sc->debug.stats.istats.rxphyerr); - len += snprintf(buf + len, sizeof(buf) - len, - "%8s: %10u\n", "RXKCM", sc->debug.stats.istats.rx_keycache_miss); - len += snprintf(buf + len, sizeof(buf) - len, - "%8s: %10u\n", "SWBA", sc->debug.stats.istats.swba); - len += snprintf(buf + len, sizeof(buf) - len, - "%8s: %10u\n", "BMISS", sc->debug.stats.istats.bmiss); - len += snprintf(buf + len, sizeof(buf) - len, - "%8s: %10u\n", "BNR", sc->debug.stats.istats.bnr); - len += snprintf(buf + len, sizeof(buf) - len, - "%8s: %10u\n", "CST", sc->debug.stats.istats.cst); - len += snprintf(buf + len, sizeof(buf) - len, - "%8s: %10u\n", "GTT", sc->debug.stats.istats.gtt); - len += snprintf(buf + len, sizeof(buf) - len, - "%8s: %10u\n", "TIM", sc->debug.stats.istats.tim); - len += snprintf(buf + len, sizeof(buf) - len, - "%8s: %10u\n", "CABEND", sc->debug.stats.istats.cabend); - len += snprintf(buf + len, sizeof(buf) - len, - "%8s: %10u\n", "DTIMSYNC", sc->debug.stats.istats.dtimsync); - len += snprintf(buf + len, sizeof(buf) - len, - "%8s: %10u\n", "DTIM", sc->debug.stats.istats.dtim); - len += snprintf(buf + len, sizeof(buf) - len, - "%8s: %10u\n", "TSFOOR", sc->debug.stats.istats.tsfoor); - len += snprintf(buf + len, sizeof(buf) - len, - "%8s: %10u\n", "TOTAL", sc->debug.stats.istats.total); - - - if (len > sizeof(buf)) - len = sizeof(buf); - - return simple_read_from_buffer(user_buf, count, ppos, buf, len); + PR_IS("RXEOL", rxeol); + PR_IS("RXORN", rxorn); + PR_IS("TX", txok); + PR_IS("TXURN", txurn); + PR_IS("MIB", mib); + PR_IS("RXPHY", rxphyerr); + PR_IS("RXKCM", rx_keycache_miss); + PR_IS("SWBA", swba); + PR_IS("BMISS", bmiss); + PR_IS("BNR", bnr); + PR_IS("CST", cst); + PR_IS("GTT", gtt); + PR_IS("TIM", tim); + PR_IS("CABEND", cabend); + PR_IS("DTIMSYNC", dtimsync); + PR_IS("DTIM", dtim); + PR_IS("TSFOOR", tsfoor); + PR_IS("TOTAL", total); + + len += snprintf(buf + len, mxlen - len, + "SYNC_CAUSE stats:\n"); + + PR_IS("Sync-All", sync_cause_all); + PR_IS("RTC-IRQ", sync_rtc_irq); + PR_IS("MAC-IRQ", sync_mac_irq); + PR_IS("EEPROM-Illegal-Access", eeprom_illegal_access); + PR_IS("APB-Timeout", apb_timeout); + PR_IS("PCI-Mode-Conflict", pci_mode_conflict); + PR_IS("HOST1-Fatal", host1_fatal); + PR_IS("HOST1-Perr", host1_perr); + PR_IS("TRCV-FIFO-Perr", trcv_fifo_perr); + PR_IS("RADM-CPL-EP", radm_cpl_ep); + PR_IS("RADM-CPL-DLLP-Abort", radm_cpl_dllp_abort); + PR_IS("RADM-CPL-TLP-Abort", radm_cpl_tlp_abort); + PR_IS("RADM-CPL-ECRC-Err", radm_cpl_ecrc_err); + PR_IS("RADM-CPL-Timeout", radm_cpl_timeout); + PR_IS("Local-Bus-Timeout", local_timeout); + PR_IS("PM-Access", pm_access); + PR_IS("MAC-Awake", mac_awake); + PR_IS("MAC-Asleep", mac_asleep); + PR_IS("MAC-Sleep-Access", mac_sleep_access); + + if (len > mxlen) + len = mxlen; + + rv = simple_read_from_buffer(user_buf, count, ppos, buf, len); + kfree(buf); + return rv; } static const struct file_operations fops_interrupt = { @@ -524,6 +536,7 @@ static ssize_t read_file_xmit(struct file *file, char __user *user_buf, PR("hw-put-tx-buf: ", puttxbuf); PR("hw-tx-start: ", txstart); PR("hw-tx-proc-desc: ", txprocdesc); + PR("TX-Failed: ", txfailed); len += snprintf(buf + len, size - len, "%s%11p%11p%10p%10p\n", "txq-memory-address:", sc->tx.txq_map[WME_AC_BE], @@ -880,6 +893,13 @@ static ssize_t read_file_recv(struct file *file, char __user *user_buf, len += snprintf(buf + len, size - len, "%22s : %10u\n", s, \ sc->debug.stats.rxstats.phy_err_stats[p]); +#define RXS_ERR(s, e) \ + do { \ + len += snprintf(buf + len, size - len, \ + "%22s : %10u\n", s, \ + sc->debug.stats.rxstats.e); \ + } while (0) + struct ath_softc *sc = file->private_data; char *buf; unsigned int len = 0, size = 1600; @@ -889,27 +909,18 @@ static ssize_t read_file_recv(struct file *file, char __user *user_buf, if (buf == NULL) return -ENOMEM; - len += snprintf(buf + len, size - len, - "%22s : %10u\n", "CRC ERR", - sc->debug.stats.rxstats.crc_err); - len += snprintf(buf + len, size - len, - "%22s : %10u\n", "DECRYPT CRC ERR", - sc->debug.stats.rxstats.decrypt_crc_err); - len += snprintf(buf + len, size - len, - "%22s : %10u\n", "PHY ERR", - sc->debug.stats.rxstats.phy_err); - len += snprintf(buf + len, size - len, - "%22s : %10u\n", "MIC ERR", - sc->debug.stats.rxstats.mic_err); - len += snprintf(buf + len, size - len, - "%22s : %10u\n", "PRE-DELIM CRC ERR", - sc->debug.stats.rxstats.pre_delim_crc_err); - len += snprintf(buf + len, size - len, - "%22s : %10u\n", "POST-DELIM CRC ERR", - sc->debug.stats.rxstats.post_delim_crc_err); - len += snprintf(buf + len, size - len, - "%22s : %10u\n", "DECRYPT BUSY ERR", - sc->debug.stats.rxstats.decrypt_busy_err); + RXS_ERR("CRC ERR", crc_err); + RXS_ERR("DECRYPT CRC ERR", decrypt_crc_err); + RXS_ERR("PHY ERR", phy_err); + RXS_ERR("MIC ERR", mic_err); + RXS_ERR("PRE-DELIM CRC ERR", pre_delim_crc_err); + RXS_ERR("POST-DELIM CRC ERR", post_delim_crc_err); + RXS_ERR("DECRYPT BUSY ERR", decrypt_busy_err); + RXS_ERR("RX-LENGTH-ERR", rx_len_err); + RXS_ERR("RX-OOM-ERR", rx_oom_err); + RXS_ERR("RX-RATE-ERR", rx_rate_err); + RXS_ERR("RX-DROP-RXFLUSH", rx_drop_rxflush); + RXS_ERR("RX-TOO-MANY-FRAGS", rx_too_many_frags_err); PHY_ERR("UNDERRUN ERR", ATH9K_PHYERR_UNDERRUN); PHY_ERR("TIMING ERR", ATH9K_PHYERR_TIMING); @@ -938,12 +949,10 @@ static ssize_t read_file_recv(struct file *file, char __user *user_buf, PHY_ERR("HT-LENGTH ERR", ATH9K_PHYERR_HT_LENGTH_ILLEGAL); PHY_ERR("HT-RATE ERR", ATH9K_PHYERR_HT_RATE_ILLEGAL); - len += snprintf(buf + len, size - len, - "%22s : %10u\n", "RX-Pkts-All", - sc->debug.stats.rxstats.rx_pkts_all); - len += snprintf(buf + len, size - len, - "%22s : %10u\n", "RX-Bytes-All", - sc->debug.stats.rxstats.rx_bytes_all); + RXS_ERR("RX-Pkts-All", rx_pkts_all); + RXS_ERR("RX-Bytes-All", rx_bytes_all); + RXS_ERR("RX-Beacons", rx_beacons); + RXS_ERR("RX-Frags", rx_frags); if (len > size) len = size; @@ -953,12 +962,12 @@ static ssize_t read_file_recv(struct file *file, char __user *user_buf, return retval; +#undef RXS_ERR #undef PHY_ERR } void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs) { -#define RX_STAT_INC(c) sc->debug.stats.rxstats.c++ #define RX_PHY_ERR_INC(c) sc->debug.stats.rxstats.phy_err_stats[c]++ #define RX_SAMP_DBG(c) (sc->debug.bb_mac_samp[sc->debug.sampidx].rs\ [sc->debug.rsidx].c) @@ -1004,7 +1013,6 @@ void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs) #endif -#undef RX_STAT_INC #undef RX_PHY_ERR_INC #undef RX_SAMP_DBG } diff --git a/drivers/net/wireless/ath/ath9k/debug.h b/drivers/net/wireless/ath/ath9k/debug.h index 64fcfad467bf..c34da09d9103 100644 --- a/drivers/net/wireless/ath/ath9k/debug.h +++ b/drivers/net/wireless/ath/ath9k/debug.h @@ -60,6 +60,7 @@ struct ath_buf; * @tsfoor: TSF out of range, indicates that the corrected TSF received * from a beacon differs from the PCU's internal TSF by more than a * (programmable) threshold + * @local_timeout: Internal bus timeout. */ struct ath_interrupt_stats { u32 total; @@ -85,8 +86,30 @@ struct ath_interrupt_stats { u32 dtim; u32 bb_watchdog; u32 tsfoor; + + /* Sync-cause stats */ + u32 sync_cause_all; + u32 sync_rtc_irq; + u32 sync_mac_irq; + u32 eeprom_illegal_access; + u32 apb_timeout; + u32 pci_mode_conflict; + u32 host1_fatal; + u32 host1_perr; + u32 trcv_fifo_perr; + u32 radm_cpl_ep; + u32 radm_cpl_dllp_abort; + u32 radm_cpl_tlp_abort; + u32 radm_cpl_ecrc_err; + u32 radm_cpl_timeout; + u32 local_timeout; + u32 pm_access; + u32 mac_awake; + u32 mac_asleep; + u32 mac_sleep_access; }; + /** * struct ath_tx_stats - Statistics about TX * @tx_pkts_all: No. of total frames transmitted, including ones that @@ -113,6 +136,7 @@ struct ath_interrupt_stats { * @puttxbuf: Number of times hardware was given txbuf to write. * @txstart: Number of times hardware was told to start tx. * @txprocdesc: Number of times tx descriptor was processed + * @txfailed: Out-of-memory or other errors in xmit path. */ struct ath_tx_stats { u32 tx_pkts_all; @@ -135,8 +159,11 @@ struct ath_tx_stats { u32 puttxbuf; u32 txstart; u32 txprocdesc; + u32 txfailed; }; +#define RX_STAT_INC(c) (sc->debug.stats.rxstats.c++) + /** * struct ath_rx_stats - RX Statistics * @rx_pkts_all: No. of total frames received, including ones that @@ -153,6 +180,13 @@ struct ath_tx_stats { * @post_delim_crc_err: Post-Frame delimiter CRC error detections * @decrypt_busy_err: Decryption interruptions counter * @phy_err_stats: Individual PHY error statistics + * @rx_len_err: No. of frames discarded due to bad length. + * @rx_oom_err: No. of frames dropped due to OOM issues. + * @rx_rate_err: No. of frames dropped due to rate errors. + * @rx_too_many_frags_err: Frames dropped due to too-many-frags received. + * @rx_drop_rxflush: No. of frames dropped due to RX-FLUSH. + * @rx_beacons: No. of beacons received. + * @rx_frags: No. of rx-fragements received. */ struct ath_rx_stats { u32 rx_pkts_all; @@ -165,6 +199,13 @@ struct ath_rx_stats { u32 post_delim_crc_err; u32 decrypt_busy_err; u32 phy_err_stats[ATH9K_PHYERR_MAX]; + u32 rx_len_err; + u32 rx_oom_err; + u32 rx_rate_err; + u32 rx_too_many_frags_err; + u32 rx_drop_rxflush; + u32 rx_beacons; + u32 rx_frags; }; enum ath_reset_type { @@ -174,6 +215,7 @@ enum ath_reset_type { RESET_TYPE_TX_ERROR, RESET_TYPE_TX_HANG, RESET_TYPE_PLL_HANG, + RESET_TYPE_MAC_HANG, __RESET_TYPE_MAX }; @@ -247,6 +289,8 @@ void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs); #else +#define RX_STAT_INC(c) /* NOP */ + static inline int ath9k_init_debug(struct ath_hw *ah) { return 0; diff --git a/drivers/net/wireless/ath/ath9k/dfs.c b/drivers/net/wireless/ath/ath9k/dfs.c index f4f56aff1e9d..ecc81792f2dc 100644 --- a/drivers/net/wireless/ath/ath9k/dfs.c +++ b/drivers/net/wireless/ath/ath9k/dfs.c @@ -21,17 +21,6 @@ #include "dfs.h" #include "dfs_debug.h" -/* - * TODO: move into or synchronize this with generic header - * as soon as IF is defined - */ -struct dfs_radar_pulse { - u16 freq; - u64 ts; - u32 width; - u8 rssi; -}; - /* internal struct to pass radar data */ struct ath_radar_data { u8 pulse_bw_info; @@ -60,44 +49,44 @@ static u32 dur_to_usecs(struct ath_hw *ah, u32 dur) #define EXT_CH_RADAR_FOUND 0x02 static bool ath9k_postprocess_radar_event(struct ath_softc *sc, - struct ath_radar_data *are, - struct dfs_radar_pulse *drp) + struct ath_radar_data *ard, + struct pulse_event *pe) { u8 rssi; u16 dur; ath_dbg(ath9k_hw_common(sc->sc_ah), DFS, "pulse_bw_info=0x%x, pri,ext len/rssi=(%u/%u, %u/%u)\n", - are->pulse_bw_info, - are->pulse_length_pri, are->rssi, - are->pulse_length_ext, are->ext_rssi); + ard->pulse_bw_info, + ard->pulse_length_pri, ard->rssi, + ard->pulse_length_ext, ard->ext_rssi); /* * Only the last 2 bits of the BW info are relevant, they indicate * which channel the radar was detected in. */ - are->pulse_bw_info &= 0x03; + ard->pulse_bw_info &= 0x03; - switch (are->pulse_bw_info) { + switch (ard->pulse_bw_info) { case PRI_CH_RADAR_FOUND: /* radar in ctrl channel */ - dur = are->pulse_length_pri; + dur = ard->pulse_length_pri; DFS_STAT_INC(sc, pri_phy_errors); /* * cannot use ctrl channel RSSI * if extension channel is stronger */ - rssi = (are->ext_rssi >= (are->rssi + 3)) ? 0 : are->rssi; + rssi = (ard->ext_rssi >= (ard->rssi + 3)) ? 0 : ard->rssi; break; case EXT_CH_RADAR_FOUND: /* radar in extension channel */ - dur = are->pulse_length_ext; + dur = ard->pulse_length_ext; DFS_STAT_INC(sc, ext_phy_errors); /* * cannot use extension channel RSSI * if control channel is stronger */ - rssi = (are->rssi >= (are->ext_rssi + 12)) ? 0 : are->ext_rssi; + rssi = (ard->rssi >= (ard->ext_rssi + 12)) ? 0 : ard->ext_rssi; break; case (PRI_CH_RADAR_FOUND | EXT_CH_RADAR_FOUND): /* @@ -107,14 +96,14 @@ ath9k_postprocess_radar_event(struct ath_softc *sc, * Radiated testing, when pulse is on DC, different pri and * ext durations are reported, so take the larger of the two */ - if (are->pulse_length_ext >= are->pulse_length_pri) - dur = are->pulse_length_ext; + if (ard->pulse_length_ext >= ard->pulse_length_pri) + dur = ard->pulse_length_ext; else - dur = are->pulse_length_pri; + dur = ard->pulse_length_pri; DFS_STAT_INC(sc, dc_phy_errors); /* when both are present use stronger one */ - rssi = (are->rssi < are->ext_rssi) ? are->ext_rssi : are->rssi; + rssi = (ard->rssi < ard->ext_rssi) ? ard->ext_rssi : ard->rssi; break; default: /* @@ -137,8 +126,8 @@ ath9k_postprocess_radar_event(struct ath_softc *sc, */ /* convert duration to usecs */ - drp->width = dur_to_usecs(sc->sc_ah, dur); - drp->rssi = rssi; + pe->width = dur_to_usecs(sc->sc_ah, dur); + pe->rssi = rssi; DFS_STAT_INC(sc, pulses_detected); return true; @@ -155,15 +144,17 @@ void ath9k_dfs_process_phyerr(struct ath_softc *sc, void *data, struct ath_radar_data ard; u16 datalen; char *vdata_end; - struct dfs_radar_pulse drp; + struct pulse_event pe; struct ath_hw *ah = sc->sc_ah; struct ath_common *common = ath9k_hw_common(ah); - if ((!(rs->rs_phyerr != ATH9K_PHYERR_RADAR)) && - (!(rs->rs_phyerr != ATH9K_PHYERR_FALSE_RADAR_EXT))) { + DFS_STAT_INC(sc, pulses_total); + if ((rs->rs_phyerr != ATH9K_PHYERR_RADAR) && + (rs->rs_phyerr != ATH9K_PHYERR_FALSE_RADAR_EXT)) { ath_dbg(common, DFS, "Error: rs_phyer=0x%x not a radar error\n", rs->rs_phyerr); + DFS_STAT_INC(sc, pulses_no_dfs); return; } @@ -189,27 +180,22 @@ void ath9k_dfs_process_phyerr(struct ath_softc *sc, void *data, ard.pulse_bw_info = vdata_end[-1]; ard.pulse_length_ext = vdata_end[-2]; ard.pulse_length_pri = vdata_end[-3]; - - ath_dbg(common, DFS, - "bw_info=%d, length_pri=%d, length_ext=%d, " - "rssi_pri=%d, rssi_ext=%d\n", - ard.pulse_bw_info, ard.pulse_length_pri, ard.pulse_length_ext, - ard.rssi, ard.ext_rssi); - - drp.freq = ah->curchan->channel; - drp.ts = mactime; - if (ath9k_postprocess_radar_event(sc, &ard, &drp)) { + pe.freq = ah->curchan->channel; + pe.ts = mactime; + if (ath9k_postprocess_radar_event(sc, &ard, &pe)) { + struct dfs_pattern_detector *pd = sc->dfs_detector; static u64 last_ts; ath_dbg(common, DFS, "ath9k_dfs_process_phyerr: channel=%d, ts=%llu, " "width=%d, rssi=%d, delta_ts=%llu\n", - drp.freq, drp.ts, drp.width, drp.rssi, drp.ts-last_ts); - last_ts = drp.ts; - /* - * TODO: forward pulse to pattern detector - * - * ieee80211_add_radar_pulse(drp.freq, drp.ts, - * drp.width, drp.rssi); - */ + pe.freq, pe.ts, pe.width, pe.rssi, pe.ts-last_ts); + last_ts = pe.ts; + DFS_STAT_INC(sc, pulses_processed); + if (pd != NULL && pd->add_pulse(pd, &pe)) { + DFS_STAT_INC(sc, radar_detected); + /* + * TODO: forward radar event to DFS management layer + */ + } } } diff --git a/drivers/net/wireless/ath/ath9k/dfs.h b/drivers/net/wireless/ath/ath9k/dfs.h index c2412857f122..3c839f06a06a 100644 --- a/drivers/net/wireless/ath/ath9k/dfs.h +++ b/drivers/net/wireless/ath/ath9k/dfs.h @@ -17,6 +17,7 @@ #ifndef ATH9K_DFS_H #define ATH9K_DFS_H +#include "dfs_pattern_detector.h" #if defined(CONFIG_ATH9K_DFS_CERTIFIED) /** @@ -31,13 +32,14 @@ * * The radar information provided as raw payload data is validated and * filtered for false pulses. Events passing all tests are forwarded to - * the upper layer for pattern detection. + * the DFS detector for pattern detection. */ void ath9k_dfs_process_phyerr(struct ath_softc *sc, void *data, struct ath_rx_status *rs, u64 mactime); #else -static inline void ath9k_dfs_process_phyerr(struct ath_softc *sc, void *data, - struct ath_rx_status *rs, u64 mactime) { } +static inline void +ath9k_dfs_process_phyerr(struct ath_softc *sc, void *data, + struct ath_rx_status *rs, u64 mactime) { } #endif #endif /* ATH9K_DFS_H */ diff --git a/drivers/net/wireless/ath/ath9k/dfs_debug.c b/drivers/net/wireless/ath/ath9k/dfs_debug.c index 4364c103ed33..55d28072adeb 100644 --- a/drivers/net/wireless/ath/ath9k/dfs_debug.c +++ b/drivers/net/wireless/ath/ath9k/dfs_debug.c @@ -21,9 +21,15 @@ #include "ath9k.h" #include "dfs_debug.h" + +struct ath_dfs_pool_stats global_dfs_pool_stats = { 0 }; + #define ATH9K_DFS_STAT(s, p) \ len += snprintf(buf + len, size - len, "%28s : %10u\n", s, \ sc->debug.stats.dfs_stats.p); +#define ATH9K_DFS_POOL_STAT(s, p) \ + len += snprintf(buf + len, size - len, "%28s : %10u\n", s, \ + global_dfs_pool_stats.p); static ssize_t read_file_dfs(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) @@ -43,6 +49,9 @@ static ssize_t read_file_dfs(struct file *file, char __user *user_buf, hw_ver->macVersion, hw_ver->macRev, (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_DFS) ? "enabled" : "disabled"); + len += snprintf(buf + len, size - len, "Pulse detector statistics:\n"); + ATH9K_DFS_STAT("pulse events reported ", pulses_total); + ATH9K_DFS_STAT("invalid pulse events ", pulses_no_dfs); ATH9K_DFS_STAT("DFS pulses detected ", pulses_detected); ATH9K_DFS_STAT("Datalen discards ", datalen_discards); ATH9K_DFS_STAT("RSSI discards ", rssi_discards); @@ -50,6 +59,18 @@ static ssize_t read_file_dfs(struct file *file, char __user *user_buf, ATH9K_DFS_STAT("Primary channel pulses ", pri_phy_errors); ATH9K_DFS_STAT("Secondary channel pulses", ext_phy_errors); ATH9K_DFS_STAT("Dual channel pulses ", dc_phy_errors); + len += snprintf(buf + len, size - len, "Radar detector statistics " + "(current DFS region: %d)\n", sc->dfs_detector->region); + ATH9K_DFS_STAT("Pulse events processed ", pulses_processed); + ATH9K_DFS_STAT("Radars detected ", radar_detected); + len += snprintf(buf + len, size - len, "Global Pool statistics:\n"); + ATH9K_DFS_POOL_STAT("Pool references ", pool_reference); + ATH9K_DFS_POOL_STAT("Pulses allocated ", pulse_allocated); + ATH9K_DFS_POOL_STAT("Pulses alloc error ", pulse_alloc_error); + ATH9K_DFS_POOL_STAT("Pulses in use ", pulse_used); + ATH9K_DFS_POOL_STAT("Seqs. allocated ", pseq_allocated); + ATH9K_DFS_POOL_STAT("Seqs. alloc error ", pseq_alloc_error); + ATH9K_DFS_POOL_STAT("Seqs. in use ", pseq_used); if (len > size) len = size; @@ -60,8 +81,33 @@ static ssize_t read_file_dfs(struct file *file, char __user *user_buf, return retval; } +/* magic number to prevent accidental reset of DFS statistics */ +#define DFS_STATS_RESET_MAGIC 0x80000000 +static ssize_t write_file_dfs(struct file *file, const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath_softc *sc = file->private_data; + unsigned long val; + char buf[32]; + ssize_t len; + + len = min(count, sizeof(buf) - 1); + if (copy_from_user(buf, user_buf, len)) + return -EFAULT; + + buf[len] = '\0'; + if (strict_strtoul(buf, 0, &val)) + return -EINVAL; + + if (val == DFS_STATS_RESET_MAGIC) + memset(&sc->debug.stats.dfs_stats, 0, + sizeof(sc->debug.stats.dfs_stats)); + return count; +} + static const struct file_operations fops_dfs_stats = { .read = read_file_dfs, + .write = write_file_dfs, .open = simple_open, .owner = THIS_MODULE, .llseek = default_llseek, diff --git a/drivers/net/wireless/ath/ath9k/dfs_debug.h b/drivers/net/wireless/ath/ath9k/dfs_debug.h index 4911724cb445..e36810a4b585 100644 --- a/drivers/net/wireless/ath/ath9k/dfs_debug.h +++ b/drivers/net/wireless/ath/ath9k/dfs_debug.h @@ -22,17 +22,23 @@ #include "hw.h" /** - * struct ath_dfs_stats - DFS Statistics - * - * @pulses_detected: No. of pulses detected so far - * @datalen_discards: No. of pulses discarded due to invalid datalen - * @rssi_discards: No. of pulses discarded due to invalid RSSI - * @bwinfo_discards: No. of pulses discarded due to invalid BW info - * @pri_phy_errors: No. of pulses reported for primary channel - * @ext_phy_errors: No. of pulses reported for extension channel - * @dc_phy_errors: No. of pulses reported for primary + extension channel + * struct ath_dfs_stats - DFS Statistics per wiphy + * @pulses_total: pulses reported by HW + * @pulses_no_dfs: pulses wrongly reported as DFS + * @pulses_detected: pulses detected so far + * @datalen_discards: pulses discarded due to invalid datalen + * @rssi_discards: pulses discarded due to invalid RSSI + * @bwinfo_discards: pulses discarded due to invalid BW info + * @pri_phy_errors: pulses reported for primary channel + * @ext_phy_errors: pulses reported for extension channel + * @dc_phy_errors: pulses reported for primary + extension channel + * @pulses_processed: pulses forwarded to detector + * @radar_detected: radars detected */ struct ath_dfs_stats { + /* pulse stats */ + u32 pulses_total; + u32 pulses_no_dfs; u32 pulses_detected; u32 datalen_discards; u32 rssi_discards; @@ -40,18 +46,39 @@ struct ath_dfs_stats { u32 pri_phy_errors; u32 ext_phy_errors; u32 dc_phy_errors; + /* pattern detection stats */ + u32 pulses_processed; + u32 radar_detected; }; +/** + * struct ath_dfs_pool_stats - DFS Statistics for global pools + */ +struct ath_dfs_pool_stats { + u32 pool_reference; + u32 pulse_allocated; + u32 pulse_alloc_error; + u32 pulse_used; + u32 pseq_allocated; + u32 pseq_alloc_error; + u32 pseq_used; +}; #if defined(CONFIG_ATH9K_DFS_DEBUGFS) #define DFS_STAT_INC(sc, c) (sc->debug.stats.dfs_stats.c++) void ath9k_dfs_init_debug(struct ath_softc *sc); +#define DFS_POOL_STAT_INC(c) (global_dfs_pool_stats.c++) +#define DFS_POOL_STAT_DEC(c) (global_dfs_pool_stats.c--) +extern struct ath_dfs_pool_stats global_dfs_pool_stats; + #else #define DFS_STAT_INC(sc, c) do { } while (0) static inline void ath9k_dfs_init_debug(struct ath_softc *sc) { } +#define DFS_POOL_STAT_INC(c) do { } while (0) +#define DFS_POOL_STAT_DEC(c) do { } while (0) #endif /* CONFIG_ATH9K_DFS_DEBUGFS */ #endif /* ATH9K_DFS_DEBUG_H */ diff --git a/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.c b/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.c new file mode 100644 index 000000000000..ea2a6cf7ef23 --- /dev/null +++ b/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.c @@ -0,0 +1,300 @@ +/* + * Copyright (c) 2012 Neratec Solutions AG + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <linux/slab.h> +#include <linux/export.h> + +#include "dfs_pattern_detector.h" +#include "dfs_pri_detector.h" + +/* + * tolerated deviation of radar time stamp in usecs on both sides + * TODO: this might need to be HW-dependent + */ +#define PRI_TOLERANCE 16 + +/** + * struct radar_types - contains array of patterns defined for one DFS domain + * @domain: DFS regulatory domain + * @num_radar_types: number of radar types to follow + * @radar_types: radar types array + */ +struct radar_types { + enum nl80211_dfs_regions region; + u32 num_radar_types; + const struct radar_detector_specs *radar_types; +}; + +/* percentage on ppb threshold to trigger detection */ +#define MIN_PPB_THRESH 50 +#define PPB_THRESH(PPB) ((PPB * MIN_PPB_THRESH + 50) / 100) +#define PRF2PRI(PRF) ((1000000 + PRF / 2) / PRF) + +#define ETSI_PATTERN(ID, WMIN, WMAX, PMIN, PMAX, PRF, PPB) \ +{ \ + ID, WMIN, WMAX, (PRF2PRI(PMAX) - PRI_TOLERANCE), \ + (PRF2PRI(PMIN) * PRF + PRI_TOLERANCE), PRF, PPB * PRF, \ + PPB_THRESH(PPB), PRI_TOLERANCE, \ +} + +/* radar types as defined by ETSI EN-301-893 v1.5.1 */ +static const struct radar_detector_specs etsi_radar_ref_types_v15[] = { + ETSI_PATTERN(0, 0, 1, 700, 700, 1, 18), + ETSI_PATTERN(1, 0, 5, 200, 1000, 1, 10), + ETSI_PATTERN(2, 0, 15, 200, 1600, 1, 15), + ETSI_PATTERN(3, 0, 15, 2300, 4000, 1, 25), + ETSI_PATTERN(4, 20, 30, 2000, 4000, 1, 20), + ETSI_PATTERN(5, 0, 2, 300, 400, 3, 10), + ETSI_PATTERN(6, 0, 2, 400, 1200, 3, 15), +}; + +static const struct radar_types etsi_radar_types_v15 = { + .region = NL80211_DFS_ETSI, + .num_radar_types = ARRAY_SIZE(etsi_radar_ref_types_v15), + .radar_types = etsi_radar_ref_types_v15, +}; + +/* for now, we support ETSI radar types, FCC and JP are TODO */ +static const struct radar_types *dfs_domains[] = { + &etsi_radar_types_v15, +}; + +/** + * get_dfs_domain_radar_types() - get radar types for a given DFS domain + * @param domain DFS domain + * @return radar_types ptr on success, NULL if DFS domain is not supported + */ +static const struct radar_types * +get_dfs_domain_radar_types(enum nl80211_dfs_regions region) +{ + u32 i; + for (i = 0; i < ARRAY_SIZE(dfs_domains); i++) { + if (dfs_domains[i]->region == region) + return dfs_domains[i]; + } + return NULL; +} + +/** + * struct channel_detector - detector elements for a DFS channel + * @head: list_head + * @freq: frequency for this channel detector in MHz + * @detectors: array of dynamically created detector elements for this freq + * + * Channel detectors are required to provide multi-channel DFS detection, e.g. + * to support off-channel scanning. A pattern detector has a list of channels + * radar pulses have been reported for in the past. + */ +struct channel_detector { + struct list_head head; + u16 freq; + struct pri_detector **detectors; +}; + +/* channel_detector_reset() - reset detector lines for a given channel */ +static void channel_detector_reset(struct dfs_pattern_detector *dpd, + struct channel_detector *cd) +{ + u32 i; + if (cd == NULL) + return; + for (i = 0; i < dpd->num_radar_types; i++) + cd->detectors[i]->reset(cd->detectors[i], dpd->last_pulse_ts); +} + +/* channel_detector_exit() - destructor */ +static void channel_detector_exit(struct dfs_pattern_detector *dpd, + struct channel_detector *cd) +{ + u32 i; + if (cd == NULL) + return; + list_del(&cd->head); + for (i = 0; i < dpd->num_radar_types; i++) { + struct pri_detector *de = cd->detectors[i]; + if (de != NULL) + de->exit(de); + } + kfree(cd->detectors); + kfree(cd); +} + +static struct channel_detector * +channel_detector_create(struct dfs_pattern_detector *dpd, u16 freq) +{ + u32 sz, i; + struct channel_detector *cd; + + cd = kmalloc(sizeof(*cd), GFP_KERNEL); + if (cd == NULL) + goto fail; + + INIT_LIST_HEAD(&cd->head); + cd->freq = freq; + sz = sizeof(cd->detectors) * dpd->num_radar_types; + cd->detectors = kzalloc(sz, GFP_KERNEL); + if (cd->detectors == NULL) + goto fail; + + for (i = 0; i < dpd->num_radar_types; i++) { + const struct radar_detector_specs *rs = &dpd->radar_spec[i]; + struct pri_detector *de = pri_detector_init(rs); + if (de == NULL) + goto fail; + cd->detectors[i] = de; + } + list_add(&cd->head, &dpd->channel_detectors); + return cd; + +fail: + pr_err("failed to allocate channel_detector for freq=%d\n", freq); + channel_detector_exit(dpd, cd); + return NULL; +} + +/** + * channel_detector_get() - get channel detector for given frequency + * @param dpd instance pointer + * @param freq frequency in MHz + * @return pointer to channel detector on success, NULL otherwise + * + * Return existing channel detector for the given frequency or return a + * newly create one. + */ +static struct channel_detector * +channel_detector_get(struct dfs_pattern_detector *dpd, u16 freq) +{ + struct channel_detector *cd; + list_for_each_entry(cd, &dpd->channel_detectors, head) { + if (cd->freq == freq) + return cd; + } + return channel_detector_create(dpd, freq); +} + +/* + * DFS Pattern Detector + */ + +/* dpd_reset(): reset all channel detectors */ +static void dpd_reset(struct dfs_pattern_detector *dpd) +{ + struct channel_detector *cd; + if (!list_empty(&dpd->channel_detectors)) + list_for_each_entry(cd, &dpd->channel_detectors, head) + channel_detector_reset(dpd, cd); + +} +static void dpd_exit(struct dfs_pattern_detector *dpd) +{ + struct channel_detector *cd, *cd0; + if (!list_empty(&dpd->channel_detectors)) + list_for_each_entry_safe(cd, cd0, &dpd->channel_detectors, head) + channel_detector_exit(dpd, cd); + kfree(dpd); +} + +static bool +dpd_add_pulse(struct dfs_pattern_detector *dpd, struct pulse_event *event) +{ + u32 i; + bool ts_wraparound; + struct channel_detector *cd; + + if (dpd->region == NL80211_DFS_UNSET) { + /* + * pulses received for a non-supported or un-initialized + * domain are treated as detected radars + */ + return true; + } + + cd = channel_detector_get(dpd, event->freq); + if (cd == NULL) + return false; + + ts_wraparound = (event->ts < dpd->last_pulse_ts); + dpd->last_pulse_ts = event->ts; + if (ts_wraparound) { + /* + * reset detector on time stamp wraparound + * with monotonic time stamps, this should never happen + */ + pr_warn("DFS: time stamp wraparound detected, resetting\n"); + dpd_reset(dpd); + } + /* do type individual pattern matching */ + for (i = 0; i < dpd->num_radar_types; i++) { + if (cd->detectors[i]->add_pulse(cd->detectors[i], event) != 0) { + channel_detector_reset(dpd, cd); + return true; + } + } + return false; +} + +static bool dpd_set_domain(struct dfs_pattern_detector *dpd, + enum nl80211_dfs_regions region) +{ + const struct radar_types *rt; + struct channel_detector *cd, *cd0; + + if (dpd->region == region) + return true; + + dpd->region = NL80211_DFS_UNSET; + + rt = get_dfs_domain_radar_types(region); + if (rt == NULL) + return false; + + /* delete all channel detectors for previous DFS domain */ + if (!list_empty(&dpd->channel_detectors)) + list_for_each_entry_safe(cd, cd0, &dpd->channel_detectors, head) + channel_detector_exit(dpd, cd); + dpd->radar_spec = rt->radar_types; + dpd->num_radar_types = rt->num_radar_types; + + dpd->region = region; + return true; +} + +static struct dfs_pattern_detector default_dpd = { + .exit = dpd_exit, + .set_domain = dpd_set_domain, + .add_pulse = dpd_add_pulse, + .region = NL80211_DFS_UNSET, +}; + +struct dfs_pattern_detector * +dfs_pattern_detector_init(enum nl80211_dfs_regions region) +{ + struct dfs_pattern_detector *dpd; + dpd = kmalloc(sizeof(*dpd), GFP_KERNEL); + if (dpd == NULL) { + pr_err("allocation of dfs_pattern_detector failed\n"); + return NULL; + } + *dpd = default_dpd; + INIT_LIST_HEAD(&dpd->channel_detectors); + + if (dpd->set_domain(dpd, region)) + return dpd; + + pr_err("Could not set DFS domain to %d. ", region); + return NULL; +} +EXPORT_SYMBOL(dfs_pattern_detector_init); diff --git a/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.h b/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.h new file mode 100644 index 000000000000..fd0328a30995 --- /dev/null +++ b/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.h @@ -0,0 +1,104 @@ +/* + * Copyright (c) 2012 Neratec Solutions AG + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef DFS_PATTERN_DETECTOR_H +#define DFS_PATTERN_DETECTOR_H + +#include <linux/types.h> +#include <linux/list.h> +#include <linux/nl80211.h> + +/** + * struct pulse_event - describing pulses reported by PHY + * @ts: pulse time stamp in us + * @freq: channel frequency in MHz + * @width: pulse duration in us + * @rssi: rssi of radar event + */ +struct pulse_event { + u64 ts; + u16 freq; + u8 width; + u8 rssi; +}; + +/** + * struct radar_detector_specs - detector specs for a radar pattern type + * @type_id: pattern type, as defined by regulatory + * @width_min: minimum radar pulse width in [us] + * @width_max: maximum radar pulse width in [us] + * @pri_min: minimum pulse repetition interval in [us] (including tolerance) + * @pri_max: minimum pri in [us] (including tolerance) + * @num_pri: maximum number of different pri for this type + * @ppb: pulses per bursts for this type + * @ppb_thresh: number of pulses required to trigger detection + * @max_pri_tolerance: pulse time stamp tolerance on both sides [us] + */ +struct radar_detector_specs { + u8 type_id; + u8 width_min; + u8 width_max; + u16 pri_min; + u16 pri_max; + u8 num_pri; + u8 ppb; + u8 ppb_thresh; + u8 max_pri_tolerance; +}; + +/** + * struct dfs_pattern_detector - DFS pattern detector + * @exit(): destructor + * @set_domain(): set DFS domain, resets detector lines upon domain changes + * @add_pulse(): add radar pulse to detector, returns true on detection + * @region: active DFS region, NL80211_DFS_UNSET until set + * @num_radar_types: number of different radar types + * @last_pulse_ts: time stamp of last valid pulse in usecs + * @radar_detector_specs: array of radar detection specs + * @channel_detectors: list connecting channel_detector elements + */ +struct dfs_pattern_detector { + void (*exit)(struct dfs_pattern_detector *dpd); + bool (*set_domain)(struct dfs_pattern_detector *dpd, + enum nl80211_dfs_regions region); + bool (*add_pulse)(struct dfs_pattern_detector *dpd, + struct pulse_event *pe); + + enum nl80211_dfs_regions region; + u8 num_radar_types; + u64 last_pulse_ts; + + const struct radar_detector_specs *radar_spec; + struct list_head channel_detectors; +}; + +/** + * dfs_pattern_detector_init() - constructor for pattern detector class + * @param region: DFS domain to be used, can be NL80211_DFS_UNSET at creation + * @return instance pointer on success, NULL otherwise + */ +#if defined(CONFIG_ATH9K_DFS_CERTIFIED) +extern struct dfs_pattern_detector * +dfs_pattern_detector_init(enum nl80211_dfs_regions region); +#else +static inline struct dfs_pattern_detector * +dfs_pattern_detector_init(enum nl80211_dfs_regions region) +{ + return NULL; +} +#endif /* CONFIG_ATH9K_DFS_CERTIFIED */ + +#endif /* DFS_PATTERN_DETECTOR_H */ diff --git a/drivers/net/wireless/ath/ath9k/dfs_pri_detector.c b/drivers/net/wireless/ath/ath9k/dfs_pri_detector.c new file mode 100644 index 000000000000..91b8dceeadb1 --- /dev/null +++ b/drivers/net/wireless/ath/ath9k/dfs_pri_detector.c @@ -0,0 +1,452 @@ +/* + * Copyright (c) 2012 Neratec Solutions AG + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <linux/slab.h> +#include <linux/spinlock.h> + +#include "ath9k.h" +#include "dfs_pattern_detector.h" +#include "dfs_pri_detector.h" +#include "dfs_debug.h" + +/** + * struct pri_sequence - sequence of pulses matching one PRI + * @head: list_head + * @pri: pulse repetition interval (PRI) in usecs + * @dur: duration of sequence in usecs + * @count: number of pulses in this sequence + * @count_falses: number of not matching pulses in this sequence + * @first_ts: time stamp of first pulse in usecs + * @last_ts: time stamp of last pulse in usecs + * @deadline_ts: deadline when this sequence becomes invalid (first_ts + dur) + */ +struct pri_sequence { + struct list_head head; + u32 pri; + u32 dur; + u32 count; + u32 count_falses; + u64 first_ts; + u64 last_ts; + u64 deadline_ts; +}; + +/** + * struct pulse_elem - elements in pulse queue + * @ts: time stamp in usecs + */ +struct pulse_elem { + struct list_head head; + u64 ts; +}; + +/** + * pde_get_multiple() - get number of multiples considering a given tolerance + * @return factor if abs(val - factor*fraction) <= tolerance, 0 otherwise + */ +static u32 pde_get_multiple(u32 val, u32 fraction, u32 tolerance) +{ + u32 remainder; + u32 factor; + u32 delta; + + if (fraction == 0) + return 0; + + delta = (val < fraction) ? (fraction - val) : (val - fraction); + + if (delta <= tolerance) + /* val and fraction are within tolerance */ + return 1; + + factor = val / fraction; + remainder = val % fraction; + if (remainder > tolerance) { + /* no exact match */ + if ((fraction - remainder) <= tolerance) + /* remainder is within tolerance */ + factor++; + else + factor = 0; + } + return factor; +} + +/** + * DOC: Singleton Pulse and Sequence Pools + * + * Instances of pri_sequence and pulse_elem are kept in singleton pools to + * reduce the number of dynamic allocations. They are shared between all + * instances and grow up to the peak number of simultaneously used objects. + * + * Memory is freed after all references to the pools are released. + */ +static u32 singleton_pool_references; +static LIST_HEAD(pulse_pool); +static LIST_HEAD(pseq_pool); +static DEFINE_SPINLOCK(pool_lock); + +static void pool_register_ref(void) +{ + spin_lock_bh(&pool_lock); + singleton_pool_references++; + DFS_POOL_STAT_INC(pool_reference); + spin_unlock_bh(&pool_lock); +} + +static void pool_deregister_ref(void) +{ + spin_lock_bh(&pool_lock); + singleton_pool_references--; + DFS_POOL_STAT_DEC(pool_reference); + if (singleton_pool_references == 0) { + /* free singleton pools with no references left */ + struct pri_sequence *ps, *ps0; + struct pulse_elem *p, *p0; + + list_for_each_entry_safe(p, p0, &pulse_pool, head) { + list_del(&p->head); + DFS_POOL_STAT_DEC(pulse_allocated); + kfree(p); + } + list_for_each_entry_safe(ps, ps0, &pseq_pool, head) { + list_del(&ps->head); + DFS_POOL_STAT_DEC(pseq_allocated); + kfree(ps); + } + } + spin_unlock_bh(&pool_lock); +} + +static void pool_put_pulse_elem(struct pulse_elem *pe) +{ + spin_lock_bh(&pool_lock); + list_add(&pe->head, &pulse_pool); + DFS_POOL_STAT_DEC(pulse_used); + spin_unlock_bh(&pool_lock); +} + +static void pool_put_pseq_elem(struct pri_sequence *pse) +{ + spin_lock_bh(&pool_lock); + list_add(&pse->head, &pseq_pool); + DFS_POOL_STAT_DEC(pseq_used); + spin_unlock_bh(&pool_lock); +} + +static struct pri_sequence *pool_get_pseq_elem(void) +{ + struct pri_sequence *pse = NULL; + spin_lock_bh(&pool_lock); + if (!list_empty(&pseq_pool)) { + pse = list_first_entry(&pseq_pool, struct pri_sequence, head); + list_del(&pse->head); + DFS_POOL_STAT_INC(pseq_used); + } + spin_unlock_bh(&pool_lock); + return pse; +} + +static struct pulse_elem *pool_get_pulse_elem(void) +{ + struct pulse_elem *pe = NULL; + spin_lock_bh(&pool_lock); + if (!list_empty(&pulse_pool)) { + pe = list_first_entry(&pulse_pool, struct pulse_elem, head); + list_del(&pe->head); + DFS_POOL_STAT_INC(pulse_used); + } + spin_unlock_bh(&pool_lock); + return pe; +} + +static struct pulse_elem *pulse_queue_get_tail(struct pri_detector *pde) +{ + struct list_head *l = &pde->pulses; + if (list_empty(l)) + return NULL; + return list_entry(l->prev, struct pulse_elem, head); +} + +static bool pulse_queue_dequeue(struct pri_detector *pde) +{ + struct pulse_elem *p = pulse_queue_get_tail(pde); + if (p != NULL) { + list_del_init(&p->head); + pde->count--; + /* give it back to pool */ + pool_put_pulse_elem(p); + } + return (pde->count > 0); +} + +/* remove pulses older than window */ +static void pulse_queue_check_window(struct pri_detector *pde) +{ + u64 min_valid_ts; + struct pulse_elem *p; + + /* there is no delta time with less than 2 pulses */ + if (pde->count < 2) + return; + + if (pde->last_ts <= pde->window_size) + return; + + min_valid_ts = pde->last_ts - pde->window_size; + while ((p = pulse_queue_get_tail(pde)) != NULL) { + if (p->ts >= min_valid_ts) + return; + pulse_queue_dequeue(pde); + } +} + +static bool pulse_queue_enqueue(struct pri_detector *pde, u64 ts) +{ + struct pulse_elem *p = pool_get_pulse_elem(); + if (p == NULL) { + p = kmalloc(sizeof(*p), GFP_KERNEL); + if (p == NULL) { + DFS_POOL_STAT_INC(pulse_alloc_error); + return false; + } + DFS_POOL_STAT_INC(pulse_allocated); + DFS_POOL_STAT_INC(pulse_used); + } + INIT_LIST_HEAD(&p->head); + p->ts = ts; + list_add(&p->head, &pde->pulses); + pde->count++; + pde->last_ts = ts; + pulse_queue_check_window(pde); + if (pde->count >= pde->max_count) + pulse_queue_dequeue(pde); + return true; +} + +static bool pseq_handler_create_sequences(struct pri_detector *pde, + u64 ts, u32 min_count) +{ + struct pulse_elem *p; + list_for_each_entry(p, &pde->pulses, head) { + struct pri_sequence ps, *new_ps; + struct pulse_elem *p2; + u32 tmp_false_count; + u64 min_valid_ts; + u32 delta_ts = ts - p->ts; + + if (delta_ts < pde->rs->pri_min) + /* ignore too small pri */ + continue; + + if (delta_ts > pde->rs->pri_max) + /* stop on too large pri (sorted list) */ + break; + + /* build a new sequence with new potential pri */ + ps.count = 2; + ps.count_falses = 0; + ps.first_ts = p->ts; + ps.last_ts = ts; + ps.pri = ts - p->ts; + ps.dur = ps.pri * (pde->rs->ppb - 1) + + 2 * pde->rs->max_pri_tolerance; + + p2 = p; + tmp_false_count = 0; + min_valid_ts = ts - ps.dur; + /* check which past pulses are candidates for new sequence */ + list_for_each_entry_continue(p2, &pde->pulses, head) { + u32 factor; + if (p2->ts < min_valid_ts) + /* stop on crossing window border */ + break; + /* check if pulse match (multi)PRI */ + factor = pde_get_multiple(ps.last_ts - p2->ts, ps.pri, + pde->rs->max_pri_tolerance); + if (factor > 0) { + ps.count++; + ps.first_ts = p2->ts; + /* + * on match, add the intermediate falses + * and reset counter + */ + ps.count_falses += tmp_false_count; + tmp_false_count = 0; + } else { + /* this is a potential false one */ + tmp_false_count++; + } + } + if (ps.count < min_count) + /* did not reach minimum count, drop sequence */ + continue; + + /* this is a valid one, add it */ + ps.deadline_ts = ps.first_ts + ps.dur; + new_ps = pool_get_pseq_elem(); + if (new_ps == NULL) { + new_ps = kmalloc(sizeof(*new_ps), GFP_KERNEL); + if (new_ps == NULL) { + DFS_POOL_STAT_INC(pseq_alloc_error); + return false; + } + DFS_POOL_STAT_INC(pseq_allocated); + DFS_POOL_STAT_INC(pseq_used); + } + memcpy(new_ps, &ps, sizeof(ps)); + INIT_LIST_HEAD(&new_ps->head); + list_add(&new_ps->head, &pde->sequences); + } + return true; +} + +/* check new ts and add to all matching existing sequences */ +static u32 +pseq_handler_add_to_existing_seqs(struct pri_detector *pde, u64 ts) +{ + u32 max_count = 0; + struct pri_sequence *ps, *ps2; + list_for_each_entry_safe(ps, ps2, &pde->sequences, head) { + u32 delta_ts; + u32 factor; + + /* first ensure that sequence is within window */ + if (ts > ps->deadline_ts) { + list_del_init(&ps->head); + pool_put_pseq_elem(ps); + continue; + } + + delta_ts = ts - ps->last_ts; + factor = pde_get_multiple(delta_ts, ps->pri, + pde->rs->max_pri_tolerance); + if (factor > 0) { + ps->last_ts = ts; + ps->count++; + + if (max_count < ps->count) + max_count = ps->count; + } else { + ps->count_falses++; + } + } + return max_count; +} + +static struct pri_sequence * +pseq_handler_check_detection(struct pri_detector *pde) +{ + struct pri_sequence *ps; + + if (list_empty(&pde->sequences)) + return NULL; + + list_for_each_entry(ps, &pde->sequences, head) { + /* + * we assume to have enough matching confidence if we + * 1) have enough pulses + * 2) have more matching than false pulses + */ + if ((ps->count >= pde->rs->ppb_thresh) && + (ps->count * pde->rs->num_pri >= ps->count_falses)) + return ps; + } + return NULL; +} + + +/* free pulse queue and sequences list and give objects back to pools */ +static void pri_detector_reset(struct pri_detector *pde, u64 ts) +{ + struct pri_sequence *ps, *ps0; + struct pulse_elem *p, *p0; + list_for_each_entry_safe(ps, ps0, &pde->sequences, head) { + list_del_init(&ps->head); + pool_put_pseq_elem(ps); + } + list_for_each_entry_safe(p, p0, &pde->pulses, head) { + list_del_init(&p->head); + pool_put_pulse_elem(p); + } + pde->count = 0; + pde->last_ts = ts; +} + +static void pri_detector_exit(struct pri_detector *de) +{ + pri_detector_reset(de, 0); + pool_deregister_ref(); + kfree(de); +} + +static bool pri_detector_add_pulse(struct pri_detector *de, + struct pulse_event *event) +{ + u32 max_updated_seq; + struct pri_sequence *ps; + u64 ts = event->ts; + const struct radar_detector_specs *rs = de->rs; + + /* ignore pulses not within width range */ + if ((rs->width_min > event->width) || (rs->width_max < event->width)) + return false; + + if ((ts - de->last_ts) < rs->max_pri_tolerance) + /* if delta to last pulse is too short, don't use this pulse */ + return false; + de->last_ts = ts; + + max_updated_seq = pseq_handler_add_to_existing_seqs(de, ts); + + if (!pseq_handler_create_sequences(de, ts, max_updated_seq)) { + pr_err("failed to create pulse sequences\n"); + pri_detector_reset(de, ts); + return false; + } + + ps = pseq_handler_check_detection(de); + + if (ps != NULL) { + pr_info("DFS: radar found: pri=%d, count=%d, count_false=%d\n", + ps->pri, ps->count, ps->count_falses); + pri_detector_reset(de, ts); + return true; + } + pulse_queue_enqueue(de, ts); + return false; +} + +struct pri_detector * +pri_detector_init(const struct radar_detector_specs *rs) +{ + struct pri_detector *de; + de = kzalloc(sizeof(*de), GFP_KERNEL); + if (de == NULL) + return NULL; + de->exit = pri_detector_exit; + de->add_pulse = pri_detector_add_pulse; + de->reset = pri_detector_reset; + + INIT_LIST_HEAD(&de->sequences); + INIT_LIST_HEAD(&de->pulses); + de->window_size = rs->pri_max * rs->ppb * rs->num_pri; + de->max_count = rs->ppb * 2; + de->rs = rs; + + pool_register_ref(); + return de; +} diff --git a/drivers/net/wireless/ath/ath9k/dfs_pri_detector.h b/drivers/net/wireless/ath/ath9k/dfs_pri_detector.h new file mode 100644 index 000000000000..81cde9f28e44 --- /dev/null +++ b/drivers/net/wireless/ath/ath9k/dfs_pri_detector.h @@ -0,0 +1,52 @@ +/* + * Copyright (c) 2012 Neratec Solutions AG + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#ifndef DFS_PRI_DETECTOR_H +#define DFS_PRI_DETECTOR_H + +#include <linux/list.h> + +/** + * struct pri_detector - PRI detector element for a dedicated radar type + * @exit(): destructor + * @add_pulse(): add pulse event, returns true if pattern was detected + * @reset(): clear states and reset to given time stamp + * @rs: detector specs for this detector element + * @last_ts: last pulse time stamp considered for this element in usecs + * @sequences: list_head holding potential pulse sequences + * @pulses: list connecting pulse_elem objects + * @count: number of pulses in queue + * @max_count: maximum number of pulses to be queued + * @window_size: window size back from newest pulse time stamp in usecs + */ +struct pri_detector { + void (*exit) (struct pri_detector *de); + bool (*add_pulse)(struct pri_detector *de, struct pulse_event *e); + void (*reset) (struct pri_detector *de, u64 ts); + +/* private: internal use only */ + const struct radar_detector_specs *rs; + u64 last_ts; + struct list_head sequences; + struct list_head pulses; + u32 count; + u32 max_count; + u32 window_size; +}; + +struct pri_detector *pri_detector_init(const struct radar_detector_specs *rs); + +#endif /* DFS_PRI_DETECTOR_H */ diff --git a/drivers/net/wireless/ath/ath9k/eeprom.c b/drivers/net/wireless/ath/ath9k/eeprom.c index c43523233319..0512397a293c 100644 --- a/drivers/net/wireless/ath/ath9k/eeprom.c +++ b/drivers/net/wireless/ath/ath9k/eeprom.c @@ -16,14 +16,6 @@ #include "hw.h" -static inline u16 ath9k_hw_fbin2freq(u8 fbin, bool is2GHz) -{ - if (fbin == AR5416_BCHAN_UNUSED) - return fbin; - - return (u16) ((is2GHz) ? (2300 + fbin) : (4800 + 5 * fbin)); -} - void ath9k_hw_analog_shift_regwrite(struct ath_hw *ah, u32 reg, u32 val) { REG_WRITE(ah, reg, val); @@ -290,6 +282,34 @@ u16 ath9k_hw_get_max_edge_power(u16 freq, struct cal_ctl_edges *pRdEdgesPower, return twiceMaxEdgePower; } +u16 ath9k_hw_get_scaled_power(struct ath_hw *ah, u16 power_limit, + u8 antenna_reduction) +{ + u16 reduction = antenna_reduction; + + /* + * Reduce scaled Power by number of chains active + * to get the per chain tx power level. + */ + switch (ar5416_get_ntxchains(ah->txchainmask)) { + case 1: + break; + case 2: + reduction += POWER_CORRECTION_FOR_TWO_CHAIN; + break; + case 3: + reduction += POWER_CORRECTION_FOR_THREE_CHAIN; + break; + } + + if (power_limit > reduction) + power_limit -= reduction; + else + power_limit = 0; + + return power_limit; +} + void ath9k_hw_update_regulatory_maxpower(struct ath_hw *ah) { struct ath_common *common = ath9k_hw_common(ah); @@ -299,10 +319,10 @@ void ath9k_hw_update_regulatory_maxpower(struct ath_hw *ah) case 1: break; case 2: - regulatory->max_power_level += INCREASE_MAXPOW_BY_TWO_CHAIN; + regulatory->max_power_level += POWER_CORRECTION_FOR_TWO_CHAIN; break; case 3: - regulatory->max_power_level += INCREASE_MAXPOW_BY_THREE_CHAIN; + regulatory->max_power_level += POWER_CORRECTION_FOR_THREE_CHAIN; break; default: ath_dbg(common, EEPROM, "Invalid chainmask configuration\n"); diff --git a/drivers/net/wireless/ath/ath9k/eeprom.h b/drivers/net/wireless/ath/ath9k/eeprom.h index 5ff7ab965120..33acb920ed3f 100644 --- a/drivers/net/wireless/ath/ath9k/eeprom.h +++ b/drivers/net/wireless/ath/ath9k/eeprom.h @@ -79,8 +79,8 @@ #define SUB_NUM_CTL_MODES_AT_5G_40 2 #define SUB_NUM_CTL_MODES_AT_2G_40 3 -#define INCREASE_MAXPOW_BY_TWO_CHAIN 6 /* 10*log10(2)*2 */ -#define INCREASE_MAXPOW_BY_THREE_CHAIN 10 /* 10*log10(3)*2 */ +#define POWER_CORRECTION_FOR_TWO_CHAIN 6 /* 10*log10(2)*2 */ +#define POWER_CORRECTION_FOR_THREE_CHAIN 10 /* 10*log10(3)*2 */ /* * For AR9285 and later chipsets, the following bits are not being programmed @@ -686,6 +686,8 @@ void ath9k_hw_get_target_powers(struct ath_hw *ah, u16 numRates, bool isHt40Target); u16 ath9k_hw_get_max_edge_power(u16 freq, struct cal_ctl_edges *pRdEdgesPower, bool is2GHz, int num_band_edges); +u16 ath9k_hw_get_scaled_power(struct ath_hw *ah, u16 power_limit, + u8 antenna_reduction); void ath9k_hw_update_regulatory_maxpower(struct ath_hw *ah); int ath9k_hw_eeprom_init(struct ath_hw *ah); @@ -697,6 +699,14 @@ void ath9k_hw_get_gain_boundaries_pdadcs(struct ath_hw *ah, u16 *pPdGainBoundaries, u8 *pPDADCValues, u16 numXpdGains); +static inline u16 ath9k_hw_fbin2freq(u8 fbin, bool is2GHz) +{ + if (fbin == AR5416_BCHAN_UNUSED) + return fbin; + + return (u16) ((is2GHz) ? (2300 + fbin) : (4800 + 5 * fbin)); +} + #define ar5416_get_ntxchains(_txchainmask) \ (((_txchainmask >> 2) & 1) + \ ((_txchainmask >> 1) & 1) + (_txchainmask & 1)) diff --git a/drivers/net/wireless/ath/ath9k/eeprom_9287.c b/drivers/net/wireless/ath/ath9k/eeprom_9287.c index f272236d8053..aa614767adff 100644 --- a/drivers/net/wireless/ath/ath9k/eeprom_9287.c +++ b/drivers/net/wireless/ath/ath9k/eeprom_9287.c @@ -564,9 +564,6 @@ static void ath9k_hw_set_ar9287_power_per_rate_table(struct ath_hw *ah, (((cfgCtl & ~CTL_MODE_M) | (pCtlMode[ctlMode] & CTL_MODE_M)) == \ ((pEepData->ctlIndex[i] & CTL_MODE_M) | SD_NO_CTL)) -#define REDUCE_SCALED_POWER_BY_TWO_CHAIN 6 -#define REDUCE_SCALED_POWER_BY_THREE_CHAIN 10 - u16 twiceMaxEdgePower; int i; struct cal_ctl_data_ar9287 *rep; @@ -591,29 +588,8 @@ static void ath9k_hw_set_ar9287_power_per_rate_table(struct ath_hw *ah, tx_chainmask = ah->txchainmask; ath9k_hw_get_channel_centers(ah, chan, ¢ers); - scaledPower = powerLimit - antenna_reduction; - - /* - * Reduce scaled Power by number of chains active - * to get the per chain tx power level. - */ - switch (ar5416_get_ntxchains(tx_chainmask)) { - case 1: - break; - case 2: - if (scaledPower > REDUCE_SCALED_POWER_BY_TWO_CHAIN) - scaledPower -= REDUCE_SCALED_POWER_BY_TWO_CHAIN; - else - scaledPower = 0; - break; - case 3: - if (scaledPower > REDUCE_SCALED_POWER_BY_THREE_CHAIN) - scaledPower -= REDUCE_SCALED_POWER_BY_THREE_CHAIN; - else - scaledPower = 0; - break; - } - scaledPower = max((u16)0, scaledPower); + scaledPower = ath9k_hw_get_scaled_power(ah, powerLimit, + antenna_reduction); /* * Get TX power from EEPROM. @@ -786,8 +762,6 @@ static void ath9k_hw_set_ar9287_power_per_rate_table(struct ath_hw *ah, #undef CMP_CTL #undef CMP_NO_CTL -#undef REDUCE_SCALED_POWER_BY_TWO_CHAIN -#undef REDUCE_SCALED_POWER_BY_THREE_CHAIN } static void ath9k_hw_ar9287_set_txpower(struct ath_hw *ah, @@ -824,6 +798,8 @@ static void ath9k_hw_ar9287_set_txpower(struct ath_hw *ah, regulatory->max_power_level = ratesArray[i]; } + ath9k_hw_update_regulatory_maxpower(ah); + if (test) return; diff --git a/drivers/net/wireless/ath/ath9k/eeprom_def.c b/drivers/net/wireless/ath/ath9k/eeprom_def.c index 619b95d764ff..b5fba8b18b8b 100644 --- a/drivers/net/wireless/ath/ath9k/eeprom_def.c +++ b/drivers/net/wireless/ath/ath9k/eeprom_def.c @@ -991,9 +991,6 @@ static void ath9k_hw_set_def_power_per_rate_table(struct ath_hw *ah, u16 antenna_reduction, u16 powerLimit) { -#define REDUCE_SCALED_POWER_BY_TWO_CHAIN 6 /* 10*log10(2)*2 */ -#define REDUCE_SCALED_POWER_BY_THREE_CHAIN 9 /* 10*log10(3)*2 */ - struct ar5416_eeprom_def *pEepData = &ah->eeprom.def; u16 twiceMaxEdgePower; int i; @@ -1027,24 +1024,8 @@ static void ath9k_hw_set_def_power_per_rate_table(struct ath_hw *ah, ath9k_hw_get_channel_centers(ah, chan, ¢ers); - scaledPower = powerLimit - antenna_reduction; - - switch (ar5416_get_ntxchains(tx_chainmask)) { - case 1: - break; - case 2: - if (scaledPower > REDUCE_SCALED_POWER_BY_TWO_CHAIN) - scaledPower -= REDUCE_SCALED_POWER_BY_TWO_CHAIN; - else - scaledPower = 0; - break; - case 3: - if (scaledPower > REDUCE_SCALED_POWER_BY_THREE_CHAIN) - scaledPower -= REDUCE_SCALED_POWER_BY_THREE_CHAIN; - else - scaledPower = 0; - break; - } + scaledPower = ath9k_hw_get_scaled_power(ah, powerLimit, + antenna_reduction); if (IS_CHAN_2GHZ(chan)) { numCtlModes = ARRAY_SIZE(ctlModesFor11g) - @@ -1263,20 +1244,7 @@ static void ath9k_hw_def_set_txpower(struct ath_hw *ah, regulatory->max_power_level = ratesArray[i]; } - switch(ar5416_get_ntxchains(ah->txchainmask)) { - case 1: - break; - case 2: - regulatory->max_power_level += INCREASE_MAXPOW_BY_TWO_CHAIN; - break; - case 3: - regulatory->max_power_level += INCREASE_MAXPOW_BY_THREE_CHAIN; - break; - default: - ath_dbg(ath9k_hw_common(ah), EEPROM, - "Invalid chainmask configuration\n"); - break; - } + ath9k_hw_update_regulatory_maxpower(ah); if (test) return; diff --git a/drivers/net/wireless/ath/ath9k/gpio.c b/drivers/net/wireless/ath/ath9k/gpio.c index fbe23de1297f..281a9af0f1b6 100644 --- a/drivers/net/wireless/ath/ath9k/gpio.c +++ b/drivers/net/wireless/ath/ath9k/gpio.c @@ -41,6 +41,9 @@ void ath_init_leds(struct ath_softc *sc) { int ret; + if (AR_SREV_9100(sc->sc_ah)) + return; + if (sc->sc_ah->led_pin < 0) { if (AR_SREV_9287(sc->sc_ah)) sc->sc_ah->led_pin = ATH_LED_PIN_9287; @@ -362,7 +365,7 @@ void ath9k_stop_btcoex(struct ath_softc *sc) ath9k_hw_btcoex_disable(ah); if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_3WIRE) ath9k_btcoex_timer_pause(sc); - if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_MCI) + if (AR_SREV_9462(ah)) ath_mci_flush_profile(&sc->btcoex.mci); } } @@ -373,7 +376,7 @@ void ath9k_deinit_btcoex(struct ath_softc *sc) ath9k_hw_get_btcoex_scheme(sc->sc_ah) == ATH_BTCOEX_CFG_3WIRE) ath_gen_timer_free(sc->sc_ah, sc->btcoex.no_stomp_timer); - if (ath9k_hw_get_btcoex_scheme(sc->sc_ah) == ATH_BTCOEX_CFG_MCI) + if (AR_SREV_9462(sc->sc_ah)) ath_mci_cleanup(sc); } @@ -399,17 +402,16 @@ int ath9k_init_btcoex(struct ath_softc *sc) txq = sc->tx.txq_map[WME_AC_BE]; ath9k_hw_init_btcoex_hw(sc->sc_ah, txq->axq_qnum); sc->btcoex.bt_stomp_type = ATH_BTCOEX_STOMP_LOW; - break; - case ATH_BTCOEX_CFG_MCI: - sc->btcoex.bt_stomp_type = ATH_BTCOEX_STOMP_LOW; - sc->btcoex.duty_cycle = ATH_BTCOEX_DEF_DUTY_CYCLE; - INIT_LIST_HEAD(&sc->btcoex.mci.info); + if (AR_SREV_9462(ah)) { + sc->btcoex.duty_cycle = ATH_BTCOEX_DEF_DUTY_CYCLE; + INIT_LIST_HEAD(&sc->btcoex.mci.info); - r = ath_mci_setup(sc); - if (r) - return r; + r = ath_mci_setup(sc); + if (r) + return r; - ath9k_hw_btcoex_init_mci(ah); + ath9k_hw_btcoex_init_mci(ah); + } break; default: diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.c b/drivers/net/wireless/ath/ath9k/hif_usb.c index 424aabb2c730..aa327adcc3d8 100644 --- a/drivers/net/wireless/ath/ath9k/hif_usb.c +++ b/drivers/net/wireless/ath/ath9k/hif_usb.c @@ -53,6 +53,8 @@ static struct usb_device_id ath9k_hif_usb_ids[] = { .driver_info = AR9280_USB }, /* SMC Networks */ { USB_DEVICE(0x0411, 0x017f), .driver_info = AR9280_USB }, /* Sony UWA-BR100 */ + { USB_DEVICE(0x04da, 0x3904), + .driver_info = AR9280_USB }, { USB_DEVICE(0x0cf3, 0x20ff), .driver_info = STORAGE_DEVICE }, @@ -1356,6 +1358,7 @@ static struct usb_driver ath9k_hif_usb_driver = { #endif .id_table = ath9k_hif_usb_ids, .soft_unbind = 1, + .disable_hub_initiated_lpm = 1, }; int ath9k_hif_usb_init(void) diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_init.c b/drivers/net/wireless/ath/ath9k/htc_drv_init.c index de5ee15ee639..25213d521bc2 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_init.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_init.c @@ -14,6 +14,8 @@ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include "htc.h" MODULE_AUTHOR("Atheros Communications"); @@ -711,7 +713,8 @@ static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv, hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; - hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; + hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN | + WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; hw->queues = 4; hw->channel_change_time = 5000; @@ -966,9 +969,7 @@ int ath9k_htc_resume(struct htc_target *htc_handle) static int __init ath9k_htc_init(void) { if (ath9k_hif_usb_init() < 0) { - printk(KERN_ERR - "ath9k_htc: No USB devices found," - " driver not installed.\n"); + pr_err("No USB devices found, driver not installed\n"); return -ENODEV; } @@ -979,6 +980,6 @@ module_init(ath9k_htc_init); static void __exit ath9k_htc_exit(void) { ath9k_hif_usb_exit(); - printk(KERN_INFO "ath9k_htc: Driver unloaded\n"); + pr_info("Driver unloaded\n"); } module_exit(ath9k_htc_exit); diff --git a/drivers/net/wireless/ath/ath9k/htc_hst.c b/drivers/net/wireless/ath/ath9k/htc_hst.c index c25226a32ddc..4a9570dfba72 100644 --- a/drivers/net/wireless/ath/ath9k/htc_hst.c +++ b/drivers/net/wireless/ath/ath9k/htc_hst.c @@ -14,6 +14,8 @@ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include "htc.h" static int htc_issue_send(struct htc_target *target, struct sk_buff* skb, @@ -461,7 +463,7 @@ int ath9k_htc_hw_init(struct htc_target *target, char *product, u32 drv_info) { if (ath9k_htc_probe_device(target, dev, devid, product, drv_info)) { - printk(KERN_ERR "Failed to initialize the device\n"); + pr_err("Failed to initialize the device\n"); return -ENODEV; } diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index 6c69e4e8b1cb..abe05ec85d50 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -24,6 +24,8 @@ #include "rc.h" #include "ar9003_mac.h" #include "ar9003_mci.h" +#include "debug.h" +#include "ath9k.h" static bool ath9k_hw_set_reset_reg(struct ath_hw *ah, u32 type); @@ -83,6 +85,53 @@ static void ath9k_hw_ani_cache_ini_regs(struct ath_hw *ah) /* Helper Functions */ /********************/ +#ifdef CONFIG_ATH9K_DEBUGFS + +void ath9k_debug_sync_cause(struct ath_common *common, u32 sync_cause) +{ + struct ath_softc *sc = common->priv; + if (sync_cause) + sc->debug.stats.istats.sync_cause_all++; + if (sync_cause & AR_INTR_SYNC_RTC_IRQ) + sc->debug.stats.istats.sync_rtc_irq++; + if (sync_cause & AR_INTR_SYNC_MAC_IRQ) + sc->debug.stats.istats.sync_mac_irq++; + if (sync_cause & AR_INTR_SYNC_EEPROM_ILLEGAL_ACCESS) + sc->debug.stats.istats.eeprom_illegal_access++; + if (sync_cause & AR_INTR_SYNC_APB_TIMEOUT) + sc->debug.stats.istats.apb_timeout++; + if (sync_cause & AR_INTR_SYNC_PCI_MODE_CONFLICT) + sc->debug.stats.istats.pci_mode_conflict++; + if (sync_cause & AR_INTR_SYNC_HOST1_FATAL) + sc->debug.stats.istats.host1_fatal++; + if (sync_cause & AR_INTR_SYNC_HOST1_PERR) + sc->debug.stats.istats.host1_perr++; + if (sync_cause & AR_INTR_SYNC_TRCV_FIFO_PERR) + sc->debug.stats.istats.trcv_fifo_perr++; + if (sync_cause & AR_INTR_SYNC_RADM_CPL_EP) + sc->debug.stats.istats.radm_cpl_ep++; + if (sync_cause & AR_INTR_SYNC_RADM_CPL_DLLP_ABORT) + sc->debug.stats.istats.radm_cpl_dllp_abort++; + if (sync_cause & AR_INTR_SYNC_RADM_CPL_TLP_ABORT) + sc->debug.stats.istats.radm_cpl_tlp_abort++; + if (sync_cause & AR_INTR_SYNC_RADM_CPL_ECRC_ERR) + sc->debug.stats.istats.radm_cpl_ecrc_err++; + if (sync_cause & AR_INTR_SYNC_RADM_CPL_TIMEOUT) + sc->debug.stats.istats.radm_cpl_timeout++; + if (sync_cause & AR_INTR_SYNC_LOCAL_TIMEOUT) + sc->debug.stats.istats.local_timeout++; + if (sync_cause & AR_INTR_SYNC_PM_ACCESS) + sc->debug.stats.istats.pm_access++; + if (sync_cause & AR_INTR_SYNC_MAC_AWAKE) + sc->debug.stats.istats.mac_awake++; + if (sync_cause & AR_INTR_SYNC_MAC_ASLEEP) + sc->debug.stats.istats.mac_asleep++; + if (sync_cause & AR_INTR_SYNC_MAC_SLEEP_ACCESS) + sc->debug.stats.istats.mac_sleep_access++; +} +#endif + + static void ath9k_hw_set_clockrate(struct ath_hw *ah) { struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf; @@ -142,6 +191,22 @@ bool ath9k_hw_wait(struct ath_hw *ah, u32 reg, u32 mask, u32 val, u32 timeout) } EXPORT_SYMBOL(ath9k_hw_wait); +void ath9k_hw_synth_delay(struct ath_hw *ah, struct ath9k_channel *chan, + int hw_delay) +{ + if (IS_CHAN_B(chan)) + hw_delay = (4 * hw_delay) / 22; + else + hw_delay /= 10; + + if (IS_CHAN_HALF_RATE(chan)) + hw_delay *= 2; + else if (IS_CHAN_QUARTER_RATE(chan)) + hw_delay *= 4; + + udelay(hw_delay + BASE_ACTIVATE_DELAY); +} + void ath9k_hw_write_array(struct ath_hw *ah, struct ar5416IniArray *array, int column, unsigned int *writecnt) { @@ -388,8 +453,8 @@ static void ath9k_hw_init_config(struct ath_hw *ah) { int i; - ah->config.dma_beacon_response_time = 2; - ah->config.sw_beacon_response_time = 10; + ah->config.dma_beacon_response_time = 1; + ah->config.sw_beacon_response_time = 6; ah->config.additional_swba_backoff = 0; ah->config.ack_6mb = 0x0; ah->config.cwm_ignore_extcca = 0; @@ -445,7 +510,6 @@ static void ath9k_hw_init_defaults(struct ath_hw *ah) AR_STA_ID1_MCAST_KSRCH; if (AR_SREV_9100(ah)) ah->sta_id1_defaults |= AR_STA_ID1_AR9100_BA_FIX; - ah->enable_32kHz_clock = DONT_USE_32KHZ; ah->slottime = ATH9K_SLOT_TIME_9; ah->globaltxtimeout = (u32) -1; ah->power_mode = ATH9K_PM_UNDEFINED; @@ -972,7 +1036,7 @@ void ath9k_hw_init_global_settings(struct ath_hw *ah) struct ath_common *common = ath9k_hw_common(ah); struct ieee80211_conf *conf = &common->hw->conf; const struct ath9k_channel *chan = ah->curchan; - int acktimeout, ctstimeout; + int acktimeout, ctstimeout, ack_offset = 0; int slottime; int sifstime; int rx_lat = 0, tx_lat = 0, eifs = 0; @@ -993,6 +1057,11 @@ void ath9k_hw_init_global_settings(struct ath_hw *ah) rx_lat = 37; tx_lat = 54; + if (IS_CHAN_5GHZ(chan)) + sifstime = 16; + else + sifstime = 10; + if (IS_CHAN_HALF_RATE(chan)) { eifs = 175; rx_lat *= 2; @@ -1000,8 +1069,9 @@ void ath9k_hw_init_global_settings(struct ath_hw *ah) if (IS_CHAN_A_FAST_CLOCK(ah, chan)) tx_lat += 11; + sifstime *= 2; + ack_offset = 16; slottime = 13; - sifstime = 32; } else if (IS_CHAN_QUARTER_RATE(chan)) { eifs = 340; rx_lat = (rx_lat * 4) - 1; @@ -1009,8 +1079,9 @@ void ath9k_hw_init_global_settings(struct ath_hw *ah) if (IS_CHAN_A_FAST_CLOCK(ah, chan)) tx_lat += 22; + sifstime *= 4; + ack_offset = 32; slottime = 21; - sifstime = 64; } else { if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah)) { eifs = AR_D_GBL_IFS_EIFS_ASYNC_FIFO; @@ -1024,14 +1095,10 @@ void ath9k_hw_init_global_settings(struct ath_hw *ah) tx_lat = MS(reg, AR_USEC_TX_LAT); slottime = ah->slottime; - if (IS_CHAN_5GHZ(chan)) - sifstime = 16; - else - sifstime = 10; } /* As defined by IEEE 802.11-2007 17.3.8.6 */ - acktimeout = slottime + sifstime + 3 * ah->coverage_class; + acktimeout = slottime + sifstime + 3 * ah->coverage_class + ack_offset; ctstimeout = acktimeout; /* @@ -1041,7 +1108,8 @@ void ath9k_hw_init_global_settings(struct ath_hw *ah) * BA frames in some implementations, but it has been found to fix ACK * timeout issues in other cases as well. */ - if (conf->channel && conf->channel->band == IEEE80211_BAND_2GHZ) { + if (conf->channel && conf->channel->band == IEEE80211_BAND_2GHZ && + !IS_CHAN_HALF_RATE(chan) && !IS_CHAN_QUARTER_RATE(chan)) { acktimeout += 64 - sifstime - ah->slottime; ctstimeout += 48 - sifstime - ah->slottime; } @@ -1454,7 +1522,7 @@ static bool ath9k_hw_channel_change(struct ath_hw *ah, return false; } ath9k_hw_set_clockrate(ah); - ath9k_hw_apply_txpower(ah, chan); + ath9k_hw_apply_txpower(ah, chan, false); ath9k_hw_rfbus_done(ah); if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan)) @@ -1491,11 +1559,84 @@ static void ath9k_hw_apply_gpio_override(struct ath_hw *ah) } } +static bool ath9k_hw_check_dcs(u32 dma_dbg, u32 num_dcu_states, + int *hang_state, int *hang_pos) +{ + static u32 dcu_chain_state[] = {5, 6, 9}; /* DCU chain stuck states */ + u32 chain_state, dcs_pos, i; + + for (dcs_pos = 0; dcs_pos < num_dcu_states; dcs_pos++) { + chain_state = (dma_dbg >> (5 * dcs_pos)) & 0x1f; + for (i = 0; i < 3; i++) { + if (chain_state == dcu_chain_state[i]) { + *hang_state = chain_state; + *hang_pos = dcs_pos; + return true; + } + } + } + return false; +} + +#define DCU_COMPLETE_STATE 1 +#define DCU_COMPLETE_STATE_MASK 0x3 +#define NUM_STATUS_READS 50 +static bool ath9k_hw_detect_mac_hang(struct ath_hw *ah) +{ + u32 chain_state, comp_state, dcs_reg = AR_DMADBG_4; + u32 i, hang_pos, hang_state, num_state = 6; + + comp_state = REG_READ(ah, AR_DMADBG_6); + + if ((comp_state & DCU_COMPLETE_STATE_MASK) != DCU_COMPLETE_STATE) { + ath_dbg(ath9k_hw_common(ah), RESET, + "MAC Hang signature not found at DCU complete\n"); + return false; + } + + chain_state = REG_READ(ah, dcs_reg); + if (ath9k_hw_check_dcs(chain_state, num_state, &hang_state, &hang_pos)) + goto hang_check_iter; + + dcs_reg = AR_DMADBG_5; + num_state = 4; + chain_state = REG_READ(ah, dcs_reg); + if (ath9k_hw_check_dcs(chain_state, num_state, &hang_state, &hang_pos)) + goto hang_check_iter; + + ath_dbg(ath9k_hw_common(ah), RESET, + "MAC Hang signature 1 not found\n"); + return false; + +hang_check_iter: + ath_dbg(ath9k_hw_common(ah), RESET, + "DCU registers: chain %08x complete %08x Hang: state %d pos %d\n", + chain_state, comp_state, hang_state, hang_pos); + + for (i = 0; i < NUM_STATUS_READS; i++) { + chain_state = REG_READ(ah, dcs_reg); + chain_state = (chain_state >> (5 * hang_pos)) & 0x1f; + comp_state = REG_READ(ah, AR_DMADBG_6); + + if (((comp_state & DCU_COMPLETE_STATE_MASK) != + DCU_COMPLETE_STATE) || + (chain_state != hang_state)) + return false; + } + + ath_dbg(ath9k_hw_common(ah), RESET, "MAC Hang signature 1 found\n"); + + return true; +} + bool ath9k_hw_check_alive(struct ath_hw *ah) { int count = 50; u32 reg; + if (AR_SREV_9300(ah)) + return !ath9k_hw_detect_mac_hang(ah); + if (AR_SREV_9285_12_OR_LATER(ah)) return true; @@ -1546,6 +1687,10 @@ static int ath9k_hw_do_fastcc(struct ath_hw *ah, struct ath9k_channel *chan) if (chan->channel == ah->curchan->channel) goto fail; + if ((ah->curchan->channelFlags | chan->channelFlags) & + (CHANNEL_HALF | CHANNEL_QUARTER)) + goto fail; + if ((chan->channelFlags & CHANNEL_ALL) != (ah->curchan->channelFlags & CHANNEL_ALL)) goto fail; @@ -1557,10 +1702,10 @@ static int ath9k_hw_do_fastcc(struct ath_hw *ah, struct ath9k_channel *chan) * For AR9462, make sure that calibration data for * re-using are present. */ - if (AR_SREV_9462(ah) && (!ah->caldata || - !ah->caldata->done_txiqcal_once || - !ah->caldata->done_txclcal_once || - !ah->caldata->rtt_hist.num_readings)) + if (AR_SREV_9462(ah) && (ah->caldata && + (!ah->caldata->done_txiqcal_once || + !ah->caldata->done_txclcal_once || + !ah->caldata->rtt_done))) goto fail; ath_dbg(common, RESET, "FastChannelChange for %d -> %d\n", @@ -1796,7 +1941,6 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan, if (caldata) { caldata->done_txiqcal_once = false; caldata->done_txclcal_once = false; - caldata->rtt_hist.num_readings = 0; } if (!ath9k_hw_init_cal(ah, chan)) return -EIO; @@ -2652,7 +2796,8 @@ static int get_antenna_gain(struct ath_hw *ah, struct ath9k_channel *chan) return ah->eep_ops->get_eeprom(ah, gain_param); } -void ath9k_hw_apply_txpower(struct ath_hw *ah, struct ath9k_channel *chan) +void ath9k_hw_apply_txpower(struct ath_hw *ah, struct ath9k_channel *chan, + bool test) { struct ath_regulatory *reg = ath9k_hw_regulatory(ah); struct ieee80211_channel *channel; @@ -2673,7 +2818,7 @@ void ath9k_hw_apply_txpower(struct ath_hw *ah, struct ath9k_channel *chan) ah->eep_ops->set_txpower(ah, chan, ath9k_regd_get_ctl(reg, chan), - ant_reduction, new_pwr, false); + ant_reduction, new_pwr, test); } void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit, bool test) @@ -2686,7 +2831,7 @@ void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit, bool test) if (test) channel->max_power = MAX_RATE_POWER / 2; - ath9k_hw_apply_txpower(ah, chan); + ath9k_hw_apply_txpower(ah, chan, test); if (test) channel->max_power = DIV_ROUND_UP(reg->max_power_level, 2); diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h index aa1680a0c7fd..b620c557c2a6 100644 --- a/drivers/net/wireless/ath/ath9k/hw.h +++ b/drivers/net/wireless/ath/ath9k/hw.h @@ -348,12 +348,6 @@ enum ath9k_int { CHANNEL_HT40MINUS) #define MAX_RTT_TABLE_ENTRY 6 -#define RTT_HIST_MAX 3 -struct ath9k_rtt_hist { - u32 table[AR9300_MAX_CHAINS][RTT_HIST_MAX][MAX_RTT_TABLE_ENTRY]; - u8 num_readings; -}; - #define MAX_IQCAL_MEASUREMENT 8 #define MAX_CL_TAB_ENTRY 16 @@ -363,6 +357,7 @@ struct ath9k_hw_cal_data { int32_t CalValid; int8_t iCoff; int8_t qCoff; + bool rtt_done; bool paprd_done; bool nfcal_pending; bool nfcal_interference; @@ -373,8 +368,8 @@ struct ath9k_hw_cal_data { u32 num_measures[AR9300_MAX_CHAINS]; int tx_corr_coeff[MAX_IQCAL_MEASUREMENT][AR9300_MAX_CHAINS]; u32 tx_clcal[AR9300_MAX_CHAINS][MAX_CL_TAB_ENTRY]; + u32 rtt_table[AR9300_MAX_CHAINS][MAX_RTT_TABLE_ENTRY]; struct ath9k_nfcal_hist nfCalHist[NUM_NF_READINGS]; - struct ath9k_rtt_hist rtt_hist; }; struct ath9k_channel { @@ -708,7 +703,6 @@ struct ath_hw { struct ar5416Stats stats; struct ath9k_tx_queue_info txq[ATH9K_NUM_TX_QUEUES]; - int16_t curchan_rad_index; enum ath9k_int imask; u32 imrs2_reg; u32 txok_interrupt_mask; @@ -762,11 +756,6 @@ struct ath_hw { u32 sta_id1_defaults; u32 misc_mode; - enum { - AUTO_32KHZ, - USE_32KHZ, - DONT_USE_32KHZ, - } enable_32kHz_clock; /* Private to hardware code */ struct ath_hw_private_ops private_ops; @@ -783,7 +772,6 @@ struct ath_hw { u32 *analogBank7Data; u32 *bank6Temp; - u8 txpower_limit; int coverage_class; u32 slottime; u32 globaltxtimeout; @@ -848,7 +836,6 @@ struct ath_hw { struct ath_gen_timer_table hw_gen_timers; struct ar9003_txs *ts_ring; - void *ts_start; u32 ts_paddr_start; u32 ts_paddr_end; u16 ts_tail; @@ -915,7 +902,6 @@ static inline u8 get_streams(int mask) } /* Initialization, Detach, Reset */ -const char *ath9k_hw_probe(u16 vendorid, u16 devid); void ath9k_hw_deinit(struct ath_hw *ah); int ath9k_hw_init(struct ath_hw *ah); int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan, @@ -932,6 +918,8 @@ void ath9k_hw_set_gpio(struct ath_hw *ah, u32 gpio, u32 val); void ath9k_hw_setantenna(struct ath_hw *ah, u32 antenna); /* General Operation */ +void ath9k_hw_synth_delay(struct ath_hw *ah, struct ath9k_channel *chan, + int hw_delay); bool ath9k_hw_wait(struct ath_hw *ah, u32 reg, u32 mask, u32 val, u32 timeout); void ath9k_hw_write_array(struct ath_hw *ah, struct ar5416IniArray *array, int column, unsigned int *writecnt); @@ -965,6 +953,13 @@ bool ath9k_hw_check_alive(struct ath_hw *ah); bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode); +#ifdef CONFIG_ATH9K_DEBUGFS +void ath9k_debug_sync_cause(struct ath_common *common, u32 sync_cause); +#else +static inline void ath9k_debug_sync_cause(struct ath_common *common, + u32 sync_cause) {} +#endif + /* Generic hw timer primitives */ struct ath_gen_timer *ath_gen_timer_alloc(struct ath_hw *ah, void (*trigger)(void *), @@ -985,7 +980,8 @@ void ath9k_hw_name(struct ath_hw *ah, char *hw_name, size_t len); /* PHY */ void ath9k_hw_get_delta_slope_vals(struct ath_hw *ah, u32 coef_scaled, u32 *coef_mantissa, u32 *coef_exponent); -void ath9k_hw_apply_txpower(struct ath_hw *ah, struct ath9k_channel *chan); +void ath9k_hw_apply_txpower(struct ath_hw *ah, struct ath9k_channel *chan, + bool test); /* * Code Specific to AR5008, AR9001 or AR9002, @@ -1011,7 +1007,6 @@ int ar9003_paprd_create_curve(struct ath_hw *ah, int ar9003_paprd_setup_gain_table(struct ath_hw *ah, int chain); int ar9003_paprd_init_table(struct ath_hw *ah); bool ar9003_paprd_is_done(struct ath_hw *ah); -void ar9003_hw_set_paprd_txdesc(struct ath_hw *ah, void *ds, u8 chains); /* Hardware family op attach helpers */ void ar5008_hw_attach_phy_ops(struct ath_hw *ah); diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c index cb006458fc4b..dee9e092449a 100644 --- a/drivers/net/wireless/ath/ath9k/init.c +++ b/drivers/net/wireless/ath/ath9k/init.c @@ -14,6 +14,8 @@ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/dma-mapping.h> #include <linux/slab.h> #include <linux/ath9k_platform.h> @@ -519,6 +521,8 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc, atomic_set(&ah->intr_ref_cnt, -1); sc->sc_ah = ah; + sc->dfs_detector = dfs_pattern_detector_init(NL80211_DFS_UNSET); + if (!pdata) { ah->ah_flags |= AH_USE_EEPROM; sc->sc_ah->led_pin = -1; @@ -642,6 +646,24 @@ void ath9k_reload_chainmask_settings(struct ath_softc *sc) setup_ht_cap(sc, &sc->sbands[IEEE80211_BAND_5GHZ].ht_cap); } +static const struct ieee80211_iface_limit if_limits[] = { + { .max = 2048, .types = BIT(NL80211_IFTYPE_STATION) | + BIT(NL80211_IFTYPE_P2P_CLIENT) | + BIT(NL80211_IFTYPE_WDS) }, + { .max = 8, .types = +#ifdef CONFIG_MAC80211_MESH + BIT(NL80211_IFTYPE_MESH_POINT) | +#endif + BIT(NL80211_IFTYPE_AP) | + BIT(NL80211_IFTYPE_P2P_GO) }, +}; + +static const struct ieee80211_iface_combination if_comb = { + .limits = if_limits, + .n_limits = ARRAY_SIZE(if_limits), + .max_interfaces = 2048, + .num_different_channels = 1, +}; void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw) { @@ -671,11 +693,15 @@ void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw) BIT(NL80211_IFTYPE_ADHOC) | BIT(NL80211_IFTYPE_MESH_POINT); + hw->wiphy->iface_combinations = &if_comb; + hw->wiphy->n_iface_combinations = 1; + if (AR_SREV_5416(sc->sc_ah)) hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; + hw->wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; hw->queues = 4; hw->max_rates = 4; @@ -779,6 +805,7 @@ int ath9k_init_device(u16 devid, struct ath_softc *sc, goto error_world; } + setup_timer(&sc->rx_poll_timer, ath_rx_poll, (unsigned long)sc); sc->last_rssi = ATH_RSSI_DUMMY_MARKER; ath_init_leds(sc); @@ -821,6 +848,8 @@ static void ath9k_deinit_softc(struct ath_softc *sc) ath_tx_cleanupq(sc, &sc->tx.txq[i]); ath9k_hw_deinit(sc->sc_ah); + if (sc->dfs_detector != NULL) + sc->dfs_detector->exit(sc->dfs_detector); kfree(sc->sc_ah); sc->sc_ah = NULL; @@ -866,17 +895,14 @@ static int __init ath9k_init(void) /* Register rate control algorithm */ error = ath_rate_control_register(); if (error != 0) { - printk(KERN_ERR - "ath9k: Unable to register rate control " - "algorithm: %d\n", - error); + pr_err("Unable to register rate control algorithm: %d\n", + error); goto err_out; } error = ath_pci_init(); if (error < 0) { - printk(KERN_ERR - "ath9k: No PCI devices found, driver not installed.\n"); + pr_err("No PCI devices found, driver not installed\n"); error = -ENODEV; goto err_rate_unregister; } @@ -905,6 +931,6 @@ static void __exit ath9k_exit(void) ath_ahb_exit(); ath_pci_exit(); ath_rate_control_unregister(); - printk(KERN_INFO "%s: Driver unloaded\n", dev_info); + pr_info("%s: Driver unloaded\n", dev_info); } module_exit(ath9k_exit); diff --git a/drivers/net/wireless/ath/ath9k/mac.c b/drivers/net/wireless/ath/ath9k/mac.c index f7bd2532269c..04ef775ccee1 100644 --- a/drivers/net/wireless/ath/ath9k/mac.c +++ b/drivers/net/wireless/ath/ath9k/mac.c @@ -133,8 +133,16 @@ EXPORT_SYMBOL(ath9k_hw_updatetxtriglevel); void ath9k_hw_abort_tx_dma(struct ath_hw *ah) { + int maxdelay = 1000; int i, q; + if (ah->curchan) { + if (IS_CHAN_HALF_RATE(ah->curchan)) + maxdelay *= 2; + else if (IS_CHAN_QUARTER_RATE(ah->curchan)) + maxdelay *= 4; + } + REG_WRITE(ah, AR_Q_TXD, AR_Q_TXD_M); REG_SET_BIT(ah, AR_PCU_MISC, AR_PCU_FORCE_QUIET_COLL | AR_PCU_CLEAR_VMF); @@ -142,7 +150,7 @@ void ath9k_hw_abort_tx_dma(struct ath_hw *ah) REG_SET_BIT(ah, AR_D_GBL_IFS_MISC, AR_D_GBL_IFS_MISC_IGNORE_BACKOFF); for (q = 0; q < AR_NUM_QCU; q++) { - for (i = 0; i < 1000; i++) { + for (i = 0; i < maxdelay; i++) { if (i) udelay(5); diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 2504ab005589..dfa78e8b6470 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -113,21 +113,25 @@ void ath9k_ps_restore(struct ath_softc *sc) struct ath_common *common = ath9k_hw_common(sc->sc_ah); enum ath9k_power_mode mode; unsigned long flags; + bool reset; spin_lock_irqsave(&sc->sc_pm_lock, flags); if (--sc->ps_usecount != 0) goto unlock; - if (sc->ps_idle && (sc->ps_flags & PS_WAIT_FOR_TX_ACK)) + if (sc->ps_idle) { + ath9k_hw_setrxabort(sc->sc_ah, 1); + ath9k_hw_stopdmarecv(sc->sc_ah, &reset); mode = ATH9K_PM_FULL_SLEEP; - else if (sc->ps_enabled && - !(sc->ps_flags & (PS_WAIT_FOR_BEACON | - PS_WAIT_FOR_CAB | - PS_WAIT_FOR_PSPOLL_DATA | - PS_WAIT_FOR_TX_ACK))) + } else if (sc->ps_enabled && + !(sc->ps_flags & (PS_WAIT_FOR_BEACON | + PS_WAIT_FOR_CAB | + PS_WAIT_FOR_PSPOLL_DATA | + PS_WAIT_FOR_TX_ACK))) { mode = ATH9K_PM_NETWORK_SLEEP; - else + } else { goto unlock; + } spin_lock(&common->cc_lock); ath_hw_cycle_counters_update(common); @@ -241,6 +245,7 @@ static bool ath_prepare_reset(struct ath_softc *sc, bool retry_tx, bool flush) sc->hw_busy_count = 0; del_timer_sync(&common->ani.timer); + del_timer_sync(&sc->rx_poll_timer); ath9k_debug_samp_bb_mac(sc); ath9k_hw_disable_interrupts(ah); @@ -282,6 +287,7 @@ static bool ath_complete_reset(struct ath_softc *sc, bool start) ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work, 0); ieee80211_queue_delayed_work(sc->hw, &sc->hw_pll_work, HZ/2); + ath_start_rx_poll(sc, 3); if (!common->disable_ani) ath_start_ani(common); } @@ -690,17 +696,6 @@ void ath9k_tasklet(unsigned long data) goto out; } - /* - * Only run the baseband hang check if beacons stop working in AP or - * IBSS mode, because it has a high false positive rate. For station - * mode it should not be necessary, since the upper layers will detect - * this through a beacon miss automatically and the following channel - * change will trigger a hardware reset anyway - */ - if (ath9k_hw_numtxpending(ah, sc->beacon.beaconq) != 0 && - !ath9k_hw_check_alive(ah)) - ieee80211_queue_work(sc->hw, &sc->hw_check_work); - if ((status & ATH9K_INT_TSFOOR) && sc->ps_enabled) { /* * TSF sync does not look correct; remain awake to sync with @@ -912,10 +907,19 @@ void ath_hw_check(struct work_struct *work) struct ath_common *common = ath9k_hw_common(sc->sc_ah); unsigned long flags; int busy; + u8 is_alive, nbeacon = 1; ath9k_ps_wakeup(sc); - if (ath9k_hw_check_alive(sc->sc_ah)) + is_alive = ath9k_hw_check_alive(sc->sc_ah); + + if (is_alive && !AR_SREV_9300(sc->sc_ah)) goto out; + else if (!is_alive && AR_SREV_9300(sc->sc_ah)) { + ath_dbg(common, RESET, + "DCU stuck is detected. Schedule chip reset\n"); + RESET_STAT_INC(sc, RESET_TYPE_MAC_HANG); + goto sched_reset; + } spin_lock_irqsave(&common->cc_lock, flags); busy = ath_update_survey_stats(sc); @@ -926,12 +930,18 @@ void ath_hw_check(struct work_struct *work) if (busy >= 99) { if (++sc->hw_busy_count >= 3) { RESET_STAT_INC(sc, RESET_TYPE_BB_HANG); - ieee80211_queue_work(sc->hw, &sc->hw_reset_work); + goto sched_reset; } - - } else if (busy >= 0) + } else if (busy >= 0) { sc->hw_busy_count = 0; + nbeacon = 3; + } + + ath_start_rx_poll(sc, nbeacon); + goto out; +sched_reset: + ieee80211_queue_work(sc->hw, &sc->hw_reset_work); out: ath9k_ps_restore(sc); } @@ -1094,14 +1104,7 @@ static void ath9k_tx(struct ieee80211_hw *hw, struct sk_buff *skb) } } - /* - * Cannot tx while the hardware is in full sleep, it first needs a full - * chip reset to recover from that - */ - if (unlikely(sc->sc_ah->power_mode == ATH9K_PM_FULL_SLEEP)) - goto exit; - - if (unlikely(sc->sc_ah->power_mode != ATH9K_PM_AWAKE)) { + if (unlikely(sc->sc_ah->power_mode == ATH9K_PM_NETWORK_SLEEP)) { /* * We are using PS-Poll and mac80211 can request TX while in * power save mode. Need to wake up hardware for the TX to be @@ -1120,12 +1123,21 @@ static void ath9k_tx(struct ieee80211_hw *hw, struct sk_buff *skb) } /* * The actual restore operation will happen only after - * the sc_flags bit is cleared. We are just dropping + * the ps_flags bit is cleared. We are just dropping * the ps_usecount here. */ ath9k_ps_restore(sc); } + /* + * Cannot tx while the hardware is in full sleep, it first needs a full + * chip reset to recover from that + */ + if (unlikely(sc->sc_ah->power_mode == ATH9K_PM_FULL_SLEEP)) { + ath_err(common, "TX while HW is in FULL_SLEEP mode\n"); + goto exit; + } + memset(&txctl, 0, sizeof(struct ath_tx_control)); txctl.txq = sc->tx.txq_map[skb_get_queue_mapping(skb)]; @@ -1133,6 +1145,7 @@ static void ath9k_tx(struct ieee80211_hw *hw, struct sk_buff *skb) if (ath_tx_start(hw, skb, &txctl) != 0) { ath_dbg(common, XMIT, "TX failed\n"); + TX_STAT_INC(txctl.txq->axq_qnum, txfailed); goto exit; } @@ -1151,6 +1164,7 @@ static void ath9k_stop(struct ieee80211_hw *hw) mutex_lock(&sc->mutex); ath_cancel_work(sc); + del_timer_sync(&sc->rx_poll_timer); if (sc->sc_flags & SC_OP_INVALID) { ath_dbg(common, ANY, "Device not present\n"); @@ -1237,7 +1251,6 @@ static void ath9k_reclaim_beacon(struct ath_softc *sc, ath9k_set_beaconing_status(sc, false); ath_beacon_return(sc, avp); ath9k_set_beaconing_status(sc, true); - sc->sc_flags &= ~SC_OP_BEACONS; } static void ath9k_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif) @@ -1368,21 +1381,31 @@ static void ath9k_do_vif_add_setup(struct ieee80211_hw *hw, ath9k_calculate_summary_state(hw, vif); if (ath9k_uses_beacons(vif->type)) { - int error; - /* This may fail because upper levels do not have beacons - * properly configured yet. That's OK, we assume it - * will be properly configured and then we will be notified - * in the info_changed method and set up beacons properly - * there. - */ + /* Reserve a beacon slot for the vif */ ath9k_set_beaconing_status(sc, false); - error = ath_beacon_alloc(sc, vif); - if (!error) - ath_beacon_config(sc, vif); + ath_beacon_alloc(sc, vif); ath9k_set_beaconing_status(sc, true); } } +void ath_start_rx_poll(struct ath_softc *sc, u8 nbeacon) +{ + if (!AR_SREV_9300(sc->sc_ah)) + return; + + if (!(sc->sc_flags & SC_OP_PRIM_STA_VIF)) + return; + + mod_timer(&sc->rx_poll_timer, jiffies + msecs_to_jiffies + (nbeacon * sc->cur_beacon_conf.beacon_interval)); +} + +void ath_rx_poll(unsigned long data) +{ + struct ath_softc *sc = (struct ath_softc *)data; + + ieee80211_queue_work(sc->hw, &sc->hw_check_work); +} static int ath9k_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) @@ -1511,6 +1534,7 @@ static void ath9k_remove_interface(struct ieee80211_hw *hw, static void ath9k_enable_ps(struct ath_softc *sc) { struct ath_hw *ah = sc->sc_ah; + struct ath_common *common = ath9k_hw_common(ah); sc->ps_enabled = true; if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) { @@ -1520,11 +1544,13 @@ static void ath9k_enable_ps(struct ath_softc *sc) } ath9k_hw_setrxabort(ah, 1); } + ath_dbg(common, PS, "PowerSave enabled\n"); } static void ath9k_disable_ps(struct ath_softc *sc) { struct ath_hw *ah = sc->sc_ah; + struct ath_common *common = ath9k_hw_common(ah); sc->ps_enabled = false; ath9k_hw_setpower(ah, ATH9K_PM_AWAKE); @@ -1539,7 +1565,7 @@ static void ath9k_disable_ps(struct ath_softc *sc) ath9k_hw_set_interrupts(ah); } } - + ath_dbg(common, PS, "PowerSave disabled\n"); } static int ath9k_config(struct ieee80211_hw *hw, u32 changed) @@ -1548,6 +1574,7 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed) struct ath_hw *ah = sc->sc_ah; struct ath_common *common = ath9k_hw_common(ah); struct ieee80211_conf *conf = &hw->conf; + bool reset_channel = false; ath9k_ps_wakeup(sc); mutex_lock(&sc->mutex); @@ -1556,6 +1583,12 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed) sc->ps_idle = !!(conf->flags & IEEE80211_CONF_IDLE); if (sc->ps_idle) ath_cancel_work(sc); + else + /* + * The chip needs a reset to properly wake up from + * full sleep + */ + reset_channel = ah->chip_fullsleep; } /* @@ -1584,7 +1617,7 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed) } } - if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { + if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) || reset_channel) { struct ieee80211_channel *curchan = hw->conf.channel; int pos = curchan->hw_value; int old_pos = -1; @@ -1904,6 +1937,8 @@ static void ath9k_bss_iter(void *data, u8 *mac, struct ieee80211_vif *vif) sc->last_rssi = ATH_RSSI_DUMMY_MARKER; sc->sc_ah->stats.avgbrssi = ATH_RSSI_DUMMY_MARKER; + ath_start_rx_poll(sc, 3); + if (!common->disable_ani) { sc->sc_flags |= SC_OP_ANI_RUN; ath_start_ani(common); @@ -1943,6 +1978,7 @@ static void ath9k_config_bss(struct ath_softc *sc, struct ieee80211_vif *vif) /* Stop ANI */ sc->sc_flags &= ~SC_OP_ANI_RUN; del_timer_sync(&common->ani.timer); + del_timer_sync(&sc->rx_poll_timer); memset(&sc->caldata, 0, sizeof(sc->caldata)); } } @@ -1957,7 +1993,6 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw, struct ath_common *common = ath9k_hw_common(ah); struct ath_vif *avp = (void *)vif->drv_priv; int slottime; - int error; ath9k_ps_wakeup(sc); mutex_lock(&sc->mutex); @@ -1986,16 +2021,29 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw, } else { sc->sc_flags &= ~SC_OP_ANI_RUN; del_timer_sync(&common->ani.timer); + del_timer_sync(&sc->rx_poll_timer); } } - /* Enable transmission of beacons (AP, IBSS, MESH) */ - if ((changed & BSS_CHANGED_BEACON) || - ((changed & BSS_CHANGED_BEACON_ENABLED) && bss_conf->enable_beacon)) { + /* + * In case of AP mode, the HW TSF has to be reset + * when the beacon interval changes. + */ + if ((changed & BSS_CHANGED_BEACON_INT) && + (vif->type == NL80211_IFTYPE_AP)) + sc->sc_flags |= SC_OP_TSF_RESET; + + /* Configure beaconing (AP, IBSS, MESH) */ + if (ath9k_uses_beacons(vif->type) && + ((changed & BSS_CHANGED_BEACON) || + (changed & BSS_CHANGED_BEACON_ENABLED) || + (changed & BSS_CHANGED_BEACON_INT))) { ath9k_set_beaconing_status(sc, false); - error = ath_beacon_alloc(sc, vif); - if (!error) - ath_beacon_config(sc, vif); + if (bss_conf->enable_beacon) + ath_beacon_alloc(sc, vif); + else + avp->is_bslot_active = false; + ath_beacon_config(sc, vif); ath9k_set_beaconing_status(sc, true); } @@ -2018,30 +2066,6 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw, } } - /* Disable transmission of beacons */ - if ((changed & BSS_CHANGED_BEACON_ENABLED) && - !bss_conf->enable_beacon) { - ath9k_set_beaconing_status(sc, false); - avp->is_bslot_active = false; - ath9k_set_beaconing_status(sc, true); - } - - if (changed & BSS_CHANGED_BEACON_INT) { - /* - * In case of AP mode, the HW TSF has to be reset - * when the beacon interval changes. - */ - if (vif->type == NL80211_IFTYPE_AP) { - sc->sc_flags |= SC_OP_TSF_RESET; - ath9k_set_beaconing_status(sc, false); - error = ath_beacon_alloc(sc, vif); - if (!error) - ath_beacon_config(sc, vif); - ath9k_set_beaconing_status(sc, true); - } else - ath_beacon_config(sc, vif); - } - mutex_unlock(&sc->mutex); ath9k_ps_restore(sc); } diff --git a/drivers/net/wireless/ath/ath9k/pci.c b/drivers/net/wireless/ath/ath9k/pci.c index 77dc327def8d..a856b51255f4 100644 --- a/drivers/net/wireless/ath/ath9k/pci.c +++ b/drivers/net/wireless/ath/ath9k/pci.c @@ -14,6 +14,8 @@ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + #include <linux/nl80211.h> #include <linux/pci.h> #include <linux/pci-aspm.h> @@ -171,14 +173,13 @@ static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); if (ret) { - printk(KERN_ERR "ath9k: 32-bit DMA not available\n"); + pr_err("32-bit DMA not available\n"); goto err_dma; } ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)); if (ret) { - printk(KERN_ERR "ath9k: 32-bit DMA consistent " - "DMA enable failed\n"); + pr_err("32-bit DMA consistent DMA enable failed\n"); goto err_dma; } @@ -224,7 +225,7 @@ static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) mem = pci_iomap(pdev, 0, 0); if (!mem) { - printk(KERN_ERR "PCI memory map error\n") ; + pr_err("PCI memory map error\n") ; ret = -EIO; goto err_iomap; } diff --git a/drivers/net/wireless/ath/ath9k/rc.c b/drivers/net/wireless/ath/ath9k/rc.c index 08bb45532701..92a6c0a87f89 100644 --- a/drivers/net/wireless/ath/ath9k/rc.c +++ b/drivers/net/wireless/ath/ath9k/rc.c @@ -1436,7 +1436,7 @@ static void ath_rate_init(void *priv, struct ieee80211_supported_band *sband, static void ath_rate_update(void *priv, struct ieee80211_supported_band *sband, struct ieee80211_sta *sta, void *priv_sta, - u32 changed, enum nl80211_channel_type oper_chan_type) + u32 changed) { struct ath_softc *sc = priv; struct ath_rate_priv *ath_rc_priv = priv_sta; @@ -1447,12 +1447,11 @@ static void ath_rate_update(void *priv, struct ieee80211_supported_band *sband, /* FIXME: Handle AP mode later when we support CWM */ - if (changed & IEEE80211_RC_HT_CHANGED) { + if (changed & IEEE80211_RC_BW_CHANGED) { if (sc->sc_ah->opmode != NL80211_IFTYPE_STATION) return; - if (oper_chan_type == NL80211_CHAN_HT40MINUS || - oper_chan_type == NL80211_CHAN_HT40PLUS) + if (sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) oper_cw40 = true; if (oper_cw40) diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c index 1c4583c7ff7c..e1fcc68124dc 100644 --- a/drivers/net/wireless/ath/ath9k/recv.c +++ b/drivers/net/wireless/ath/ath9k/recv.c @@ -812,6 +812,7 @@ static bool ath9k_rx_accept(struct ath_common *common, is_valid_tkip = rx_stats->rs_keyix != ATH9K_RXKEYIX_INVALID && test_bit(rx_stats->rs_keyix, common->tkip_keymap); strip_mic = is_valid_tkip && ieee80211_is_data(fc) && + ieee80211_has_protected(fc) && !(rx_stats->rs_status & (ATH9K_RXERR_DECRYPT | ATH9K_RXERR_CRC | ATH9K_RXERR_MIC | ATH9K_RXERR_KEYMISS)); @@ -824,15 +825,20 @@ static bool ath9k_rx_accept(struct ath_common *common, if (rx_stats->rs_keyix == ATH9K_RXKEYIX_INVALID) rx_stats->rs_status &= ~ATH9K_RXERR_KEYMISS; - if (!rx_stats->rs_datalen) + if (!rx_stats->rs_datalen) { + RX_STAT_INC(rx_len_err); return false; + } + /* * rs_status follows rs_datalen so if rs_datalen is too large * we can take a hint that hardware corrupted it, so ignore * those frames. */ - if (rx_stats->rs_datalen > (common->rx_bufsize - rx_status_len)) + if (rx_stats->rs_datalen > (common->rx_bufsize - rx_status_len)) { + RX_STAT_INC(rx_len_err); return false; + } /* Only use error bits from the last fragment */ if (rx_stats->rs_more) @@ -902,6 +908,7 @@ static int ath9k_process_rate(struct ath_common *common, struct ieee80211_supported_band *sband; enum ieee80211_band band; unsigned int i = 0; + struct ath_softc __maybe_unused *sc = common->priv; band = hw->conf.channel->band; sband = hw->wiphy->bands[band]; @@ -936,7 +943,7 @@ static int ath9k_process_rate(struct ath_common *common, ath_dbg(common, ANY, "unsupported hw bitrate detected 0x%02x using 1 Mbit\n", rx_stats->rs_rate); - + RX_STAT_INC(rx_rate_err); return -EINVAL; } @@ -1823,10 +1830,14 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp) hdr = (struct ieee80211_hdr *) (hdr_skb->data + rx_status_len); rxs = IEEE80211_SKB_RXCB(hdr_skb); - if (ieee80211_is_beacon(hdr->frame_control) && - !is_zero_ether_addr(common->curbssid) && - !compare_ether_addr(hdr->addr3, common->curbssid)) - rs.is_mybeacon = true; + if (ieee80211_is_beacon(hdr->frame_control)) { + RX_STAT_INC(rx_beacons); + if (!is_zero_ether_addr(common->curbssid) && + ether_addr_equal(hdr->addr3, common->curbssid)) + rs.is_mybeacon = true; + else + rs.is_mybeacon = false; + } else rs.is_mybeacon = false; @@ -1836,8 +1847,10 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp) * If we're asked to flush receive queue, directly * chain it back at the queue without processing it. */ - if (sc->sc_flags & SC_OP_RXFLUSH) + if (sc->sc_flags & SC_OP_RXFLUSH) { + RX_STAT_INC(rx_drop_rxflush); goto requeue_drop_frag; + } memset(rxs, 0, sizeof(struct ieee80211_rx_status)); @@ -1855,6 +1868,10 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp) if (retval) goto requeue_drop_frag; + if (rs.is_mybeacon) { + sc->hw_busy_count = 0; + ath_start_rx_poll(sc, 3); + } /* Ensure we always have an skb to requeue once we are done * processing the current buffer's skb */ requeue_skb = ath_rxbuf_alloc(common, common->rx_bufsize, GFP_ATOMIC); @@ -1863,8 +1880,10 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp) * tell hardware it can give us a new frame using the old * skb and put it at the tail of the sc->rx.rxbuf list for * processing. */ - if (!requeue_skb) + if (!requeue_skb) { + RX_STAT_INC(rx_oom_err); goto requeue_drop_frag; + } /* Unmap the frame */ dma_unmap_single(sc->dev, bf->bf_buf_addr, @@ -1895,6 +1914,7 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp) } if (rs.rs_more) { + RX_STAT_INC(rx_frags); /* * rs_more indicates chained descriptors which can be * used to link buffers together for a sort of @@ -1904,6 +1924,7 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp) /* too many fragments - cannot handle frame */ dev_kfree_skb_any(sc->rx.frag); dev_kfree_skb_any(skb); + RX_STAT_INC(rx_too_many_frags_err); skb = NULL; } sc->rx.frag = skb; @@ -1915,6 +1936,7 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp) if (pskb_expand_head(hdr_skb, 0, space, GFP_ATOMIC) < 0) { dev_kfree_skb(skb); + RX_STAT_INC(rx_oom_err); goto requeue_drop_frag; } diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index 834e6bc45e8b..23eaa1b26ebe 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -1820,6 +1820,7 @@ static struct ath_buf *ath_tx_setup_buffer(struct ath_softc *sc, struct ath_frame_info *fi = get_frame_info(skb); struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; struct ath_buf *bf; + int fragno; u16 seqno; bf = ath_tx_get_buffer(sc); @@ -1831,9 +1832,16 @@ static struct ath_buf *ath_tx_setup_buffer(struct ath_softc *sc, ATH_TXBUF_RESET(bf); if (tid) { + fragno = le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG; seqno = tid->seq_next; hdr->seq_ctrl = cpu_to_le16(tid->seq_next << IEEE80211_SEQ_SEQ_SHIFT); - INCR(tid->seq_next, IEEE80211_SEQ_MAX); + + if (fragno) + hdr->seq_ctrl |= cpu_to_le16(fragno); + + if (!ieee80211_has_morefrags(hdr->frame_control)) + INCR(tid->seq_next, IEEE80211_SEQ_MAX); + bf->bf_state.seqno = seqno; } |