diff options
Diffstat (limited to 'qemu/roms/ipxe/src/drivers/net/ath/ath9k/ath9k_ani.c')
| -rw-r--r-- | qemu/roms/ipxe/src/drivers/net/ath/ath9k/ath9k_ani.c | 733 |
1 files changed, 0 insertions, 733 deletions
diff --git a/qemu/roms/ipxe/src/drivers/net/ath/ath9k/ath9k_ani.c b/qemu/roms/ipxe/src/drivers/net/ath/ath9k/ath9k_ani.c deleted file mode 100644 index 76ca79cba..000000000 --- a/qemu/roms/ipxe/src/drivers/net/ath/ath9k/ath9k_ani.c +++ /dev/null @@ -1,733 +0,0 @@ -/* - * Copyright (c) 2008-2011 Atheros Communications Inc. - * - * Modified for iPXE by Scott K Logan <logans@cottsay.net> July 2011 - * Original from Linux kernel 3.0.1 - * - * 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 "hw.h" -#include "hw-ops.h" - -struct ani_ofdm_level_entry { - int spur_immunity_level; - int fir_step_level; - int ofdm_weak_signal_on; -}; - -/* values here are relative to the INI */ - -/* - * Legend: - * - * SI: Spur immunity - * FS: FIR Step - * WS: OFDM / CCK Weak Signal detection - * MRC-CCK: Maximal Ratio Combining for CCK - */ - -static const struct ani_ofdm_level_entry ofdm_level_table[] = { - /* SI FS WS */ - { 0, 0, 1 }, /* lvl 0 */ - { 1, 1, 1 }, /* lvl 1 */ - { 2, 2, 1 }, /* lvl 2 */ - { 3, 2, 1 }, /* lvl 3 (default) */ - { 4, 3, 1 }, /* lvl 4 */ - { 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 */ -}; -#define ATH9K_ANI_OFDM_NUM_LEVEL \ - ARRAY_SIZE(ofdm_level_table) -#define ATH9K_ANI_OFDM_MAX_LEVEL \ - (ATH9K_ANI_OFDM_NUM_LEVEL-1) -#define ATH9K_ANI_OFDM_DEF_LEVEL \ - 3 /* default level - matches the INI settings */ - -/* - * MRC (Maximal Ratio Combining) has always been used with multi-antenna ofdm. - * With OFDM for single stream you just add up all antenna inputs, you're - * only interested in what you get after FFT. Signal aligment is also not - * required for OFDM because any phase difference adds up in the frequency - * domain. - * - * MRC requires extra work for use with CCK. You need to align the antenna - * signals from the different antenna before you can add the signals together. - * You need aligment of signals as CCK is in time domain, so addition can cancel - * your signal completely if phase is 180 degrees (think of adding sine waves). - * You also need to remove noise before the addition and this is where ANI - * MRC CCK comes into play. One of the antenna inputs may be stronger but - * lower SNR, so just adding after alignment can be dangerous. - * - * Regardless of alignment in time, the antenna signals add constructively after - * FFT and improve your reception. For more information: - * - * http://en.wikipedia.org/wiki/Maximal-ratio_combining - */ - -struct ani_cck_level_entry { - int fir_step_level; - int mrc_cck_on; -}; - -static const struct ani_cck_level_entry cck_level_table[] = { - /* FS MRC-CCK */ - { 0, 1 }, /* lvl 0 */ - { 1, 1 }, /* lvl 1 */ - { 2, 1 }, /* lvl 2 (default) */ - { 3, 1 }, /* lvl 3 */ - { 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) */ -}; - -#define ATH9K_ANI_CCK_NUM_LEVEL \ - ARRAY_SIZE(cck_level_table) -#define ATH9K_ANI_CCK_MAX_LEVEL \ - (ATH9K_ANI_CCK_NUM_LEVEL-1) -#define ATH9K_ANI_CCK_MAX_LEVEL_LOW_RSSI \ - (ATH9K_ANI_CCK_NUM_LEVEL-3) -#define ATH9K_ANI_CCK_DEF_LEVEL \ - 2 /* default level - matches the INI settings */ - -static int use_new_ani(struct ath_hw *ah) -{ - return AR_SREV_9300_20_OR_LATER(ah) || modparam_force_new_ani; -} - -static void ath9k_hw_update_mibstats(struct ath_hw *ah, - struct ath9k_mib_stats *stats) -{ - stats->ackrcv_bad += REG_READ(ah, AR_ACK_FAIL); - stats->rts_bad += REG_READ(ah, AR_RTS_FAIL); - stats->fcs_bad += REG_READ(ah, AR_FCS_FAIL); - stats->rts_good += REG_READ(ah, AR_RTS_OK); - stats->beacons += REG_READ(ah, AR_BEACON_CNT); -} - -static void ath9k_ani_restart(struct ath_hw *ah) -{ - struct ar5416AniState *aniState; - u32 ofdm_base = 0, cck_base = 0; - - if (!DO_ANI(ah)) - return; - - aniState = &ah->curchan->ani; - aniState->listenTime = 0; - - if (!use_new_ani(ah)) { - ofdm_base = AR_PHY_COUNTMAX - ah->config.ofdm_trig_high; - cck_base = AR_PHY_COUNTMAX - ah->config.cck_trig_high; - } - - DBG2("ath9k: " - "Writing ofdmbase=%d cckbase=%d\n", ofdm_base, cck_base); - - ENABLE_REGWRITE_BUFFER(ah); - - REG_WRITE(ah, AR_PHY_ERR_1, ofdm_base); - REG_WRITE(ah, AR_PHY_ERR_2, cck_base); - REG_WRITE(ah, AR_PHY_ERR_MASK_1, AR_PHY_ERR_OFDM_TIMING); - REG_WRITE(ah, AR_PHY_ERR_MASK_2, AR_PHY_ERR_CCK_TIMING); - - REGWRITE_BUFFER_FLUSH(ah); - - ath9k_hw_update_mibstats(ah, &ah->ah_mibStats); - - aniState->ofdmPhyErrCount = 0; - aniState->cckPhyErrCount = 0; -} - -static void ath9k_hw_ani_ofdm_err_trigger_old(struct ath_hw *ah) -{ - struct ar5416AniState *aniState; - int32_t rssi; - - aniState = &ah->curchan->ani; - - if (aniState->noiseImmunityLevel < HAL_NOISE_IMMUNE_MAX) { - if (ath9k_hw_ani_control(ah, ATH9K_ANI_NOISE_IMMUNITY_LEVEL, - aniState->noiseImmunityLevel + 1)) { - return; - } - } - - if (aniState->spurImmunityLevel < HAL_SPUR_IMMUNE_MAX) { - if (ath9k_hw_ani_control(ah, ATH9K_ANI_SPUR_IMMUNITY_LEVEL, - aniState->spurImmunityLevel + 1)) { - return; - } - } - - rssi = BEACON_RSSI(ah); - if (rssi > aniState->rssiThrHigh) { - if (aniState->ofdmWeakSigDetect) { - if (ath9k_hw_ani_control(ah, - ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION, - 0)) { - ath9k_hw_ani_control(ah, - ATH9K_ANI_SPUR_IMMUNITY_LEVEL, 0); - return; - } - } - if (aniState->firstepLevel < HAL_FIRST_STEP_MAX) { - ath9k_hw_ani_control(ah, ATH9K_ANI_FIRSTEP_LEVEL, - aniState->firstepLevel + 1); - return; - } - } else if (rssi > aniState->rssiThrLow) { - if (!aniState->ofdmWeakSigDetect) - ath9k_hw_ani_control(ah, - ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION, - 1); - if (aniState->firstepLevel < HAL_FIRST_STEP_MAX) - ath9k_hw_ani_control(ah, ATH9K_ANI_FIRSTEP_LEVEL, - aniState->firstepLevel + 1); - return; - } else { - if ((ah->dev->channels + ah->dev->channel)->band == NET80211_BAND_2GHZ) { - if (aniState->ofdmWeakSigDetect) - ath9k_hw_ani_control(ah, - ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION, - 0); - if (aniState->firstepLevel > 0) - ath9k_hw_ani_control(ah, - ATH9K_ANI_FIRSTEP_LEVEL, 0); - return; - } - } -} - -static void ath9k_hw_ani_cck_err_trigger_old(struct ath_hw *ah) -{ - struct ar5416AniState *aniState; - int32_t rssi; - - aniState = &ah->curchan->ani; - if (aniState->noiseImmunityLevel < HAL_NOISE_IMMUNE_MAX) { - if (ath9k_hw_ani_control(ah, ATH9K_ANI_NOISE_IMMUNITY_LEVEL, - aniState->noiseImmunityLevel + 1)) { - return; - } - } - rssi = BEACON_RSSI(ah); - if (rssi > aniState->rssiThrLow) { - if (aniState->firstepLevel < HAL_FIRST_STEP_MAX) - ath9k_hw_ani_control(ah, ATH9K_ANI_FIRSTEP_LEVEL, - aniState->firstepLevel + 1); - } else { - if ((ah->dev->channels + ah->dev->channel)->band == NET80211_BAND_2GHZ) { - if (aniState->firstepLevel > 0) - ath9k_hw_ani_control(ah, - ATH9K_ANI_FIRSTEP_LEVEL, 0); - } - } -} - -/* Adjust the OFDM Noise Immunity Level */ -static void ath9k_hw_set_ofdm_nil(struct ath_hw *ah, u8 immunityLevel) -{ - struct ar5416AniState *aniState = &ah->curchan->ani; - const struct ani_ofdm_level_entry *entry_ofdm; - const struct ani_cck_level_entry *entry_cck; - - aniState->noiseFloor = BEACON_RSSI(ah); - - DBG2("ath9k: " - "**** ofdmlevel %d=>%d, rssi=%d[lo=%d hi=%d]\n", - aniState->ofdmNoiseImmunityLevel, - immunityLevel, aniState->noiseFloor, - aniState->rssiThrLow, aniState->rssiThrHigh); - - aniState->ofdmNoiseImmunityLevel = immunityLevel; - - entry_ofdm = &ofdm_level_table[aniState->ofdmNoiseImmunityLevel]; - entry_cck = &cck_level_table[aniState->cckNoiseImmunityLevel]; - - if (aniState->spurImmunityLevel != entry_ofdm->spur_immunity_level) - ath9k_hw_ani_control(ah, - ATH9K_ANI_SPUR_IMMUNITY_LEVEL, - entry_ofdm->spur_immunity_level); - - if (aniState->firstepLevel != entry_ofdm->fir_step_level && - entry_ofdm->fir_step_level >= entry_cck->fir_step_level) - ath9k_hw_ani_control(ah, - ATH9K_ANI_FIRSTEP_LEVEL, - entry_ofdm->fir_step_level); -} - -static void ath9k_hw_ani_ofdm_err_trigger(struct ath_hw *ah) -{ - struct ar5416AniState *aniState; - - if (!DO_ANI(ah)) - return; - - if (!use_new_ani(ah)) { - ath9k_hw_ani_ofdm_err_trigger_old(ah); - return; - } - - aniState = &ah->curchan->ani; - - if (aniState->ofdmNoiseImmunityLevel < ATH9K_ANI_OFDM_MAX_LEVEL) - ath9k_hw_set_ofdm_nil(ah, aniState->ofdmNoiseImmunityLevel + 1); -} - -/* - * Set the ANI settings to match an CCK level. - */ -static void ath9k_hw_set_cck_nil(struct ath_hw *ah, uint8_t immunityLevel) -{ - struct ar5416AniState *aniState = &ah->curchan->ani; - const struct ani_ofdm_level_entry *entry_ofdm; - const struct ani_cck_level_entry *entry_cck; - - aniState->noiseFloor = BEACON_RSSI(ah); - DBG2("ath9k: " - "**** ccklevel %d=>%d, rssi=%d[lo=%d hi=%d]\n", - aniState->cckNoiseImmunityLevel, immunityLevel, - aniState->noiseFloor, aniState->rssiThrLow, - aniState->rssiThrHigh); - - if (aniState->noiseFloor <= (unsigned int)aniState->rssiThrLow && - immunityLevel > ATH9K_ANI_CCK_MAX_LEVEL_LOW_RSSI) - immunityLevel = ATH9K_ANI_CCK_MAX_LEVEL_LOW_RSSI; - - aniState->cckNoiseImmunityLevel = immunityLevel; - - entry_ofdm = &ofdm_level_table[aniState->ofdmNoiseImmunityLevel]; - entry_cck = &cck_level_table[aniState->cckNoiseImmunityLevel]; - - if (aniState->firstepLevel != entry_cck->fir_step_level && - entry_cck->fir_step_level >= entry_ofdm->fir_step_level) - ath9k_hw_ani_control(ah, - ATH9K_ANI_FIRSTEP_LEVEL, - entry_cck->fir_step_level); - - /* Skip MRC CCK for pre AR9003 families */ - if (!AR_SREV_9300_20_OR_LATER(ah) || AR_SREV_9485(ah)) - return; - - if (aniState->mrcCCKOff == entry_cck->mrc_cck_on) - ath9k_hw_ani_control(ah, - ATH9K_ANI_MRC_CCK, - entry_cck->mrc_cck_on); -} - -static void ath9k_hw_ani_cck_err_trigger(struct ath_hw *ah) -{ - struct ar5416AniState *aniState; - - if (!DO_ANI(ah)) - return; - - if (!use_new_ani(ah)) { - ath9k_hw_ani_cck_err_trigger_old(ah); - return; - } - - aniState = &ah->curchan->ani; - - if (aniState->cckNoiseImmunityLevel < ATH9K_ANI_CCK_MAX_LEVEL) - ath9k_hw_set_cck_nil(ah, aniState->cckNoiseImmunityLevel + 1); -} - -static void ath9k_hw_ani_lower_immunity_old(struct ath_hw *ah) -{ - struct ar5416AniState *aniState; - int32_t rssi; - - aniState = &ah->curchan->ani; - - rssi = BEACON_RSSI(ah); - if (rssi > aniState->rssiThrHigh) { - /* XXX: Handle me */ - } else if (rssi > aniState->rssiThrLow) { - if (!aniState->ofdmWeakSigDetect) { - if (ath9k_hw_ani_control(ah, - ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION, - 1) == 1) - return; - } - if (aniState->firstepLevel > 0) { - if (ath9k_hw_ani_control(ah, - ATH9K_ANI_FIRSTEP_LEVEL, - aniState->firstepLevel - 1) == 1) - return; - } - } else { - if (aniState->firstepLevel > 0) { - if (ath9k_hw_ani_control(ah, - ATH9K_ANI_FIRSTEP_LEVEL, - aniState->firstepLevel - 1) == 1) - return; - } - } - - if (aniState->spurImmunityLevel > 0) { - if (ath9k_hw_ani_control(ah, ATH9K_ANI_SPUR_IMMUNITY_LEVEL, - aniState->spurImmunityLevel - 1)) - return; - } - - if (aniState->noiseImmunityLevel > 0) { - ath9k_hw_ani_control(ah, ATH9K_ANI_NOISE_IMMUNITY_LEVEL, - aniState->noiseImmunityLevel - 1); - return; - } -} - -/* - * only lower either OFDM or CCK errors per turn - * we lower the other one next time - */ -static void ath9k_hw_ani_lower_immunity(struct ath_hw *ah) -{ - struct ar5416AniState *aniState; - - aniState = &ah->curchan->ani; - - if (!use_new_ani(ah)) { - ath9k_hw_ani_lower_immunity_old(ah); - return; - } - - /* lower OFDM noise immunity */ - if (aniState->ofdmNoiseImmunityLevel > 0 && - (aniState->ofdmsTurn || aniState->cckNoiseImmunityLevel == 0)) { - ath9k_hw_set_ofdm_nil(ah, aniState->ofdmNoiseImmunityLevel - 1); - return; - } - - /* lower CCK noise immunity */ - if (aniState->cckNoiseImmunityLevel > 0) - ath9k_hw_set_cck_nil(ah, aniState->cckNoiseImmunityLevel - 1); -} - -static void ath9k_ani_reset_old(struct ath_hw *ah) -{ - struct ar5416AniState *aniState; - - if (!DO_ANI(ah)) - return; - - aniState = &ah->curchan->ani; - - if (aniState->noiseImmunityLevel != 0) - ath9k_hw_ani_control(ah, ATH9K_ANI_NOISE_IMMUNITY_LEVEL, - aniState->noiseImmunityLevel); - if (aniState->spurImmunityLevel != 0) - ath9k_hw_ani_control(ah, ATH9K_ANI_SPUR_IMMUNITY_LEVEL, - aniState->spurImmunityLevel); - if (!aniState->ofdmWeakSigDetect) - ath9k_hw_ani_control(ah, ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION, - aniState->ofdmWeakSigDetect); - if (aniState->cckWeakSigThreshold) - ath9k_hw_ani_control(ah, ATH9K_ANI_CCK_WEAK_SIGNAL_THR, - aniState->cckWeakSigThreshold); - if (aniState->firstepLevel != 0) - ath9k_hw_ani_control(ah, ATH9K_ANI_FIRSTEP_LEVEL, - aniState->firstepLevel); - - ath9k_hw_setrxfilter(ah, ath9k_hw_getrxfilter(ah) & - ~ATH9K_RX_FILTER_PHYERR); - ath9k_ani_restart(ah); - - ENABLE_REGWRITE_BUFFER(ah); - - REG_WRITE(ah, AR_PHY_ERR_MASK_1, AR_PHY_ERR_OFDM_TIMING); - REG_WRITE(ah, AR_PHY_ERR_MASK_2, AR_PHY_ERR_CCK_TIMING); - - REGWRITE_BUFFER_FLUSH(ah); -} - -/* - * Restore the ANI parameters in the HAL and reset the statistics. - * This routine should be called for every hardware reset and for - * every channel change. - */ -void ath9k_ani_reset(struct ath_hw *ah, int is_scanning) -{ - struct ar5416AniState *aniState = &ah->curchan->ani; - struct ath9k_channel *chan = ah->curchan; - - if (!DO_ANI(ah)) - return; - - if (!use_new_ani(ah)) - return ath9k_ani_reset_old(ah); - - ah->stats.ast_ani_reset++; - - /* always allow mode (on/off) to be controlled */ - ah->ani_function |= ATH9K_ANI_MODE; - - if (is_scanning) { - /* - * If we're scanning or in AP mode, the defaults (ini) - * should be in place. For an AP we assume the historical - * levels for this channel are probably outdated so start - * from defaults instead. - */ - if (aniState->ofdmNoiseImmunityLevel != - ATH9K_ANI_OFDM_DEF_LEVEL || - aniState->cckNoiseImmunityLevel != - ATH9K_ANI_CCK_DEF_LEVEL) { - DBG("ath9k: " - "Restore defaults: chan %d Mhz/0x%x is_scanning=%d ofdm:%d cck:%d\n", - chan->channel, - chan->channelFlags, - is_scanning, - aniState->ofdmNoiseImmunityLevel, - aniState->cckNoiseImmunityLevel); - - ath9k_hw_set_ofdm_nil(ah, ATH9K_ANI_OFDM_DEF_LEVEL); - ath9k_hw_set_cck_nil(ah, ATH9K_ANI_CCK_DEF_LEVEL); - } - } else { - /* - * restore historical levels for this channel - */ - DBG2("ath9k: " - "Restore history: chan %d Mhz/0x%x is_scanning=%d ofdm:%d cck:%d\n", - chan->channel, - chan->channelFlags, - is_scanning, - aniState->ofdmNoiseImmunityLevel, - aniState->cckNoiseImmunityLevel); - - ath9k_hw_set_ofdm_nil(ah, - aniState->ofdmNoiseImmunityLevel); - ath9k_hw_set_cck_nil(ah, - aniState->cckNoiseImmunityLevel); - } - - /* - * enable phy counters if hw supports or if not, enable phy - * interrupts (so we can count each one) - */ - ath9k_ani_restart(ah); - - ENABLE_REGWRITE_BUFFER(ah); - - REG_WRITE(ah, AR_PHY_ERR_MASK_1, AR_PHY_ERR_OFDM_TIMING); - REG_WRITE(ah, AR_PHY_ERR_MASK_2, AR_PHY_ERR_CCK_TIMING); - - REGWRITE_BUFFER_FLUSH(ah); -} - -static int ath9k_hw_ani_read_counters(struct ath_hw *ah) -{ - struct ath_common *common = ath9k_hw_common(ah); - struct ar5416AniState *aniState = &ah->curchan->ani; - u32 ofdm_base = 0; - u32 cck_base = 0; - u32 ofdmPhyErrCnt, cckPhyErrCnt; - u32 phyCnt1, phyCnt2; - int32_t listenTime; - - ath_hw_cycle_counters_update(common); - listenTime = ath_hw_get_listen_time(common); - - if (listenTime <= 0) { - ah->stats.ast_ani_lneg++; - ath9k_ani_restart(ah); - return 0; - } - - if (!use_new_ani(ah)) { - ofdm_base = AR_PHY_COUNTMAX - ah->config.ofdm_trig_high; - cck_base = AR_PHY_COUNTMAX - ah->config.cck_trig_high; - } - - aniState->listenTime += listenTime; - - phyCnt1 = REG_READ(ah, AR_PHY_ERR_1); - phyCnt2 = REG_READ(ah, AR_PHY_ERR_2); - - if (!use_new_ani(ah) && (phyCnt1 < ofdm_base || phyCnt2 < cck_base)) { - if (phyCnt1 < ofdm_base) { - DBG2("ath9k: " - "phyCnt1 0x%x, resetting counter value to 0x%x\n", - phyCnt1, ofdm_base); - REG_WRITE(ah, AR_PHY_ERR_1, ofdm_base); - REG_WRITE(ah, AR_PHY_ERR_MASK_1, - AR_PHY_ERR_OFDM_TIMING); - } - if (phyCnt2 < cck_base) { - DBG2("ath9k: " - "phyCnt2 0x%x, resetting counter value to 0x%x\n", - phyCnt2, cck_base); - REG_WRITE(ah, AR_PHY_ERR_2, cck_base); - REG_WRITE(ah, AR_PHY_ERR_MASK_2, - AR_PHY_ERR_CCK_TIMING); - } - return 0; - } - - ofdmPhyErrCnt = phyCnt1 - ofdm_base; - ah->stats.ast_ani_ofdmerrs += - ofdmPhyErrCnt - aniState->ofdmPhyErrCount; - aniState->ofdmPhyErrCount = ofdmPhyErrCnt; - - cckPhyErrCnt = phyCnt2 - cck_base; - ah->stats.ast_ani_cckerrs += - cckPhyErrCnt - aniState->cckPhyErrCount; - aniState->cckPhyErrCount = cckPhyErrCnt; - return 1; -} - -void ath9k_hw_ani_monitor(struct ath_hw *ah, struct ath9k_channel *chan __unused) -{ - struct ar5416AniState *aniState; - u32 ofdmPhyErrRate, cckPhyErrRate; - - if (!DO_ANI(ah)) - return; - - aniState = &ah->curchan->ani; - if (!aniState) - return; - - if (!ath9k_hw_ani_read_counters(ah)) - return; - - ofdmPhyErrRate = aniState->ofdmPhyErrCount * 1000 / - aniState->listenTime; - cckPhyErrRate = aniState->cckPhyErrCount * 1000 / - aniState->listenTime; - - DBG2("ath9k: " - "listenTime=%d OFDM:%d errs=%d/s CCK:%d errs=%d/s ofdm_turn=%d\n", - aniState->listenTime, - aniState->ofdmNoiseImmunityLevel, - 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) { - 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)) { - ath9k_hw_ani_ofdm_err_trigger(ah); - ath9k_ani_restart(ah); - aniState->ofdmsTurn = 0; - } else if (cckPhyErrRate > ah->config.cck_trig_high) { - ath9k_hw_ani_cck_err_trigger(ah); - ath9k_ani_restart(ah); - aniState->ofdmsTurn = 1; - } - } -} - -void ath9k_hw_ani_setup(struct ath_hw *ah) -{ - int i; - - static const int totalSizeDesired[] = { -55, -55, -55, -55, -62 }; - static const int coarseHigh[] = { -14, -14, -14, -14, -12 }; - static const int coarseLow[] = { -64, -64, -64, -64, -70 }; - static const int firpwr[] = { -78, -78, -78, -78, -80 }; - - for (i = 0; i < 5; i++) { - ah->totalSizeDesired[i] = totalSizeDesired[i]; - ah->coarse_high[i] = coarseHigh[i]; - ah->coarse_low[i] = coarseLow[i]; - ah->firpwr[i] = firpwr[i]; - } -} - -void ath9k_hw_ani_init(struct ath_hw *ah) -{ - unsigned int i; - - DBG2("ath9k: Initialize ANI\n"); - - if (use_new_ani(ah)) { - ah->config.ofdm_trig_high = ATH9K_ANI_OFDM_TRIG_HIGH_NEW; - ah->config.ofdm_trig_low = ATH9K_ANI_OFDM_TRIG_LOW_NEW; - - ah->config.cck_trig_high = ATH9K_ANI_CCK_TRIG_HIGH_NEW; - ah->config.cck_trig_low = ATH9K_ANI_CCK_TRIG_LOW_NEW; - } else { - ah->config.ofdm_trig_high = ATH9K_ANI_OFDM_TRIG_HIGH_OLD; - ah->config.ofdm_trig_low = ATH9K_ANI_OFDM_TRIG_LOW_OLD; - - ah->config.cck_trig_high = ATH9K_ANI_CCK_TRIG_HIGH_OLD; - ah->config.cck_trig_low = ATH9K_ANI_CCK_TRIG_LOW_OLD; - } - - for (i = 0; i < ARRAY_SIZE(ah->channels); i++) { - struct ath9k_channel *chan = &ah->channels[i]; - struct ar5416AniState *ani = &chan->ani; - - if (use_new_ani(ah)) { - ani->spurImmunityLevel = - ATH9K_ANI_SPUR_IMMUNE_LVL_NEW; - - ani->firstepLevel = ATH9K_ANI_FIRSTEP_LVL_NEW; - - if (AR_SREV_9300_20_OR_LATER(ah)) - ani->mrcCCKOff = - !ATH9K_ANI_ENABLE_MRC_CCK; - else - ani->mrcCCKOff = 1; - - ani->ofdmsTurn = 1; - } else { - ani->spurImmunityLevel = - ATH9K_ANI_SPUR_IMMUNE_LVL_OLD; - ani->firstepLevel = ATH9K_ANI_FIRSTEP_LVL_OLD; - - ani->cckWeakSigThreshold = - ATH9K_ANI_CCK_WEAK_SIG_THR; - } - - ani->rssiThrHigh = ATH9K_ANI_RSSI_THR_HIGH; - ani->rssiThrLow = ATH9K_ANI_RSSI_THR_LOW; - ani->ofdmWeakSigDetect = - ATH9K_ANI_USE_OFDM_WEAK_SIG; - ani->cckNoiseImmunityLevel = ATH9K_ANI_CCK_DEF_LEVEL; - } - - /* - * since we expect some ongoing maintenance on the tables, let's sanity - * check here default level should not modify INI setting. - */ - if (use_new_ani(ah)) { - ah->aniperiod = ATH9K_ANI_PERIOD_NEW; - ah->config.ani_poll_interval = ATH9K_ANI_POLLINTERVAL_NEW; - } else { - ah->aniperiod = ATH9K_ANI_PERIOD_OLD; - ah->config.ani_poll_interval = ATH9K_ANI_POLLINTERVAL_OLD; - } - - if (ah->config.enable_ani) - ah->proc_phyerr |= HAL_PROCESS_ANI; - - ath9k_ani_restart(ah); -} |