/*
* Copyright (c) 2008-2010 Atheros Communications Inc.
*
* 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/kernel.h>
#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 */
/* Private to ani.c */
static void ath9k_hw_ani_lower_immunity(struct ath_hw *ah)
{
ath9k_hw_private_ops(ah)->ani_lower_immunity(ah);
}
int ath9k_hw_get_ani_channel_idx(struct ath_hw *ah,
struct ath9k_channel *chan)
{
int i;
for (i = 0; i < ARRAY_SIZE(ah->ani); i++) {
if (ah->ani[i].c &&
ah->ani[i].c->channel == chan->channel)
return i;
if (ah->ani[i].c == NULL) {
ah->ani[i].c = chan;
return i;
}
}
ath_print(ath9k_hw_common(ah), ATH_DBG_ANI,
"No more channel states left. Using channel 0\n");
return 0;
}
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_old(struct ath_hw *ah)
{
struct ar5416AniState *aniState;
struct ath_common *common = ath9k_hw_common(ah);
if (!DO_ANI(ah))
return;
aniState = ah->curani;
aniState->listenTime = 0;
if (aniState->ofdmTrigHigh > AR_PHY_COUNTMAX) {
aniState->ofdmPhyErrBase = 0;
ath_print(common, ATH_DBG_ANI,
"OFDM Trigger is too high for hw counters\n");
} else {
aniState->ofdmPhyErrBase =
AR_PHY_COUNTMAX - aniState->ofdmTrigHigh;
}
if (aniState->cckTrigHigh > AR_PHY_COUNTMAX) {
aniState->cckPhyErrBase = 0;
ath_print(common, ATH_DBG_ANI,
"CCK Trigger is too high for hw counters\n");
} else {
aniState->cckPhyErrBase =
AR_PHY_COUNTMAX - aniState->cckTrigHigh;
}
ath_print(common, ATH_DBG_ANI,
"Writing ofdmbase=%u cckbase=%u\n",
aniState->ofdmPhyErrBase,
aniState->cckPhyErrBase);
ENABLE_REGWRITE_BUFFER(ah);
REG_WRITE(ah, AR_PHY_ERR_1, aniState->ofdmPhyErrBase);
REG_WRITE(ah, AR_PHY_ERR_2, aniState->cckPhyErrBase);
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);
DISABLE_REGWRITE_BUFFER(ah);
ath9k_hw_update_mibstats(ah, &ah->ah_mibStats);
aniState->ofdmPhyErrCount = 0;
aniState->cckPhyErrCount = 0;
}
static void ath9k_ani_restart_new(struct ath_hw *ah)
{
struct ar5416AniState *aniState;
struct ath_common *common = ath9k_hw_common(ah);
if (!DO_ANI(ah))
return;
aniState = ah->curani;
aniState->listenTime = 0;
aniState->ofdmPhyErrBase = 0;
aniState->cckPhyErrBase = 0;
ath_print(common, ATH_DBG_ANI,
"Writing ofdmbase=%08x cckbase=%08x\n",
aniState->ofdmPhyErrBase,
aniState->cckPhyErrBase);
ENABLE_REGWRITE_BUFFER(ah);
REG_WRITE(ah, AR_PHY_ERR_1, aniState->ofdmPhyErrBase);
REG_WRITE(ah, AR_PHY_ERR_2, aniState->cckPhyErrBase);
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);
DISABLE_REGWRITE_BUFFER(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 ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
struct ar5416AniState *aniState;
int32_t rssi;
if (!DO_ANI(ah))
return;
aniState = ah->curani;
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;
}
}
if (ah->opmode == NL80211_IFTYPE_AP) {
if (aniState->firstepLevel < HAL_FIRST_STEP_MAX) {
ath9k_hw_ani_control(ah, ATH9K_ANI_FIRSTEP_LEVEL,
aniState->firstepLevel + 1);
}
return;
}
rssi = BEACON_RSSI(ah);
if (rssi > aniState->rssiThrHigh) {
if (!aniState->ofdmWeakSigDetectOff) {
if (ath9k_hw_ani_control(ah,
ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION,
false)) {
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->ofdmWeakSigDetectOff)
ath9k_hw_ani_control(ah,
ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION,
true);
if (aniState->firstepLevel < HAL_FIRST_STEP_MAX)
ath9k_hw_ani_control(ah, ATH9K_ANI_FIRSTEP_LEVEL,
aniState->firstepLevel + 1);
return;
} else {
if ((conf->channel->band == IEEE80211_BAND_2GHZ) &&
!conf_is_ht(conf)) {
if (!aniState->ofdmWeakSigDetectOff)
ath9k_hw_ani_control(ah,
ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION,
false);
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 ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
struct ar5416AniState *aniState;
int32_t rssi;
if (!DO_ANI(ah))
return;
aniState = ah->curani;
if (aniState->noiseImmunityLevel < HAL_NOISE_IMMUNE_MAX) {
if (ath9k_hw_ani_control(ah, ATH9K_ANI_NOISE_IMMUNITY_LEVEL,
aniState->noiseImmunityLevel + 1)) {
return;
}
}
if (ah->opmode == NL80211_IFTYPE_AP) {
if (aniState->firstepLevel < HAL_FIRST_STEP_MAX) {
ath9k_hw_ani_control(ah, ATH9K_ANI_FIRSTEP_LEVEL,
aniState->firstepLevel + 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 ((conf->channel->band == IEEE80211_BAND_2GHZ) &&
!conf_is_ht(conf)) {
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->curani;
struct ath_common *common = ath9k_hw_common(ah);
const struct ani_ofdm_level_entry *entry_ofdm;
const struct ani_cck_level_entry *entry_cck;
aniState->noiseFloor = BEACON_RSSI(ah);
ath_print(common, ATH_DBG_ANI,
"**** 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);
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)
ath9k_hw_ani_control(ah,
ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION,
entry_ofdm->ofdm_weak_signal_on);
}
}
static void ath9k_hw_ani_ofdm_err_trigger_new(struct ath_hw *ah)
{
struct ar5416AniState *aniState;
if (!DO_ANI(ah))
return;
aniState = ah->curani;
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, u_int8_t immunityLevel)
{
struct ar5416AniState *aniState = ah->curani;
struct ath_common *common = ath9k_hw_common(ah);
const struct ani_ofdm_level_entry *entry_ofdm;
const struct ani_cck_level_entry *entry_cck;
aniState->noiseFloor = BEACON_RSSI(ah);
ath_print(common, ATH_DBG_ANI,
"**** ccklevel %d=>%d, rssi=%d[lo=%d hi=%d]\n",
aniState->cckNoiseImmunityLevel, immunityLevel,
aniState->noiseFloor, aniState->rssiThrLow,
aniState->rssiThrHigh);
if ((ah->opmode == NL80211_IFTYPE_STATION ||
ah->opmode == NL80211_IFTYPE_ADHOC) &&
aniState->noiseFloor <= 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))
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_new(struct ath_hw *ah)
{
struct ar5416AniState *aniState;
if (!DO_ANI(ah))
return;
aniState = ah->curani;
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->curani;
if (ah->opmode == NL80211_IFTYPE_AP) {
if (aniState->firstepLevel > 0) {
if (ath9k_hw_ani_control(ah, ATH9K_ANI_FIRSTEP_LEVEL,
aniState->firstepLevel - 1))
return;
}
} else {
rssi = BEACON_RSSI(ah);
if (rssi > aniState->rssiThrHigh) {
/* XXX: Handle me */
} else if (rssi > aniState->rssiThrLow) {
if (aniState->ofdmWeakSigDetectOff) {
if (ath9k_hw_ani_control(ah,
ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION,
true) == true)
return;
}
if (aniState->firstepLevel > 0) {
if (ath9k_hw_ani_control(ah,
ATH9K_ANI_FIRSTEP_LEVEL,
aniState->firstepLevel - 1) == true)
return;
}
} else {
if (aniState->firstepLevel > 0) {
if (ath9k_hw_ani_control(ah,
ATH9K_ANI_FIRSTEP_LEVEL,
aniState->firstepLevel - 1) == true)
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_new(struct ath_hw *ah)
{
struct ar5416AniState *aniState;
aniState = ah->curani;
/* 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 u8 ath9k_hw_chan_2_clockrate_mhz(struct ath_hw *ah)
{
struct ath9k_channel *chan = ah->curchan;
struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
u8 clockrate; /* in MHz */
if (!ah->curchan) /* should really check for CCK instead */
clockrate = ATH9K_CLOCK_RATE_CCK;
else if (conf->channel->band == IEEE80211_BAND_2GHZ)
clockrate = ATH9K_CLOCK_RATE_2GHZ_OFDM;
else if (IS_CHAN_A_FAST_CLOCK(ah, chan))
clockrate = ATH9K_CLOCK_FAST_RATE_5GHZ_OFDM;
else
clockrate = ATH9K_CLOCK_RATE_5GHZ_OFDM;
if (conf_is_ht40(conf))
return clockrate * 2;
return clockrate * 2;
}
static int32_t ath9k_hw_ani_get_listen_time(struct ath_hw *ah)
{
struct ar5416AniState *aniState;
struct ath_common *common = ath9k_hw_common(ah);
u32 txFrameCount, rxFrameCount, cycleCount;
int32_t listenTime;
txFrameCount = REG_READ(ah, AR_TFCNT);
rxFrameCount = REG_READ(ah, AR_RFCNT);
cycleCount = REG_READ(ah, AR_CCCNT);
aniState = ah->curani;
if (aniState->cycleCount == 0 || aniState->cycleCount > cycleCount) {
listenTime = 0;
ah->stats.ast_ani_lzero++;
ath_print(common, ATH_DBG_ANI,
"1st call: aniState->cycleCount=%d\n",
aniState->cycleCount);
} else {
int32_t ccdelta = cycleCount - aniState->cycleCount;
int32_t rfdelta = rxFrameCount - aniState->rxFrameCount;
int32_t tfdelta = txFrameCount - aniState->txFrameCount;
int32_t clock_rate;
/*
* convert HW counter values to ms using mode
* specifix clock rate
*/
clock_rate = ath9k_hw_chan_2_clockrate_mhz(ah) * 1000;;
listenTime = (ccdelta - rfdelta - tfdelta) / clock_rate;
ath_print(common, ATH_DBG_ANI,
"cyclecount=%d, rfcount=%d, "
"tfcount=%d, listenTime=%d CLOCK_RATE=%d\n",
ccdelta, rfdelta, tfdelta, listenTime, clock_rate);
}
aniState->cycleCount = cycleCount;
aniState->txFrameCount = txFrameCount;
aniState->rxFrameCount = rxFrameCount;
return listenTime;
}
static void ath9k_ani_reset_old(struct ath_hw *ah, bool is_scanning)
{
struct ar5416AniState *aniState;
struct ath9k_channel *chan = ah->curchan;
struct ath_common *common = ath9k_hw_common(ah);
int index;
if (!DO_ANI(ah))
return;
index = ath9k_hw_get_ani_channel_idx(ah, chan);
aniState = &ah->ani[index];
ah->curani = aniState;
if (DO_ANI(ah) && ah->opmode != NL80211_IFTYPE_STATION
&& ah->opmode != NL80211_IFTYPE_ADHOC) {
ath_print(common, ATH_DBG_ANI,
"Reset ANI state opmode %u\n", ah->opmode);
ah->stats.ast_ani_reset++;
if (ah->opmode == NL80211_IFTYPE_AP) {
/*
* ath9k_hw_ani_control() will only process items set on
* ah->ani_function
*/
if (IS_CHAN_2GHZ(chan))
ah->ani_function = (ATH9K_ANI_SPUR_IMMUNITY_LEVEL |
ATH9K_ANI_FIRSTEP_LEVEL);
else
ah->ani_function = 0;
}
ath9k_hw_ani_control(ah, ATH9K_ANI_NOISE_IMMUNITY_LEVEL, 0);
ath9k_hw_ani_control(ah, ATH9K_ANI_SPUR_IMMUNITY_LEVEL, 0);
ath9k_hw_ani_control(ah, ATH9K_ANI_FIRSTEP_LEVEL, 0);
ath9k_hw_ani_control(ah, ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION,
!ATH9K_ANI_USE_OFDM_WEAK_SIG);
ath9k_hw_ani_control(ah, ATH9K_ANI_CCK_WEAK_SIGNAL_THR,
ATH9K_ANI_CCK_WEAK_SIG_THR);
ath9k_hw_setrxfilter(ah, ath9k_hw_getrxfilter(ah) |
ATH9K_RX_FILTER_PHYERR);
if (ah->opmode == NL80211_IFTYPE_AP) {
ah->curani->ofdmTrigHigh =
ah->config.ofdm_trig_high;
ah->curani->ofdmTrigLow =
ah->config.ofdm_trig_low;
ah->curani->cckTrigHigh =
ah->config.cck_trig_high;
ah->curani->cckTrigLow =
ah->config.cck_trig_low;
}
ath9k_ani_restart_old(ah);
return;
}
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->ofdmWeakSigDetectOff)
ath9k_hw_ani_control(ah, ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION,
!aniState->ofdmWeakSigDetectOff);
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_old(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);
DISABLE_REGWRITE_BUFFER(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.
*/
static void ath9k_ani_reset_new(struct ath_hw *ah, bool is_scanning)
{
struct ar5416AniState *aniState = ah->curani;
struct ath9k_channel *chan = ah->curchan;
struct ath_common *common = ath9k_hw_common(ah);
if (!DO_ANI(ah))
return;
BUG_ON(aniState == NULL);
ah->stats.ast_ani_reset++;
/* only allow a subset of functions in AP mode */
if (ah->opmode == NL80211_IFTYPE_AP) {
if (IS_CHAN_2GHZ(chan)) {
ah->ani_function = (ATH9K_ANI_SPUR_IMMUNITY_LEVEL |
ATH9K_ANI_FIRSTEP_LEVEL);
if (AR_SREV_9300_20_OR_LATER(ah))
ah->ani_function |= ATH9K_ANI_MRC_CCK;
} else
ah->ani_function = 0;
}
/* always allow mode (on/off) to be controlled */
ah->ani_function |= ATH9K_ANI_MODE;
if (is_scanning ||
(ah->opmode != NL80211_IFTYPE_STATION &&
ah->opmode != NL80211_IFTYPE_ADHOC)) {
/*
* 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) {
ath_print(common, ATH_DBG_ANI,
"Restore defaults: opmode %u "
"chan %d Mhz/0x%x is_scanning=%d "
"ofdm:%d cck:%d\n",
ah->opmode,
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
*/
ath_print(common, ATH_DBG_ANI,
"Restore history: opmode %u "
"chan %d Mhz/0x%x is_scanning=%d "
"ofdm:%d cck:%d\n",
ah->opmode,
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_new(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);
DISABLE_REGWRITE_BUFFER(ah);
}
static void ath9k_hw_ani_monitor_old(struct ath_hw *ah,
struct ath9k_channel *chan)
{
struct ar5416AniState *aniState;
struct ath_common *common = ath9k_hw_common(ah);
int32_t listenTime;
u32 phyCnt1, phyCnt2;
u32 ofdmPhyErrCnt, cckPhyErrCnt;
if (!DO_ANI(ah))
return;
aniState = ah->curani;
listenTime = ath9k_hw_ani_get_listen_time(ah);
if (listenTime < 0) {
ah->stats.ast_ani_lneg++;
ath9k_ani_restart_old(ah);
return;
}
aniState->listenTime += listenTime;
ath9k_hw_update_mibstats(ah, &ah->ah_mibStats);
phyCnt1 = REG_READ(ah, AR_PHY_ERR_1);
phyCnt2 = REG_READ(ah, AR_PHY_ERR_2);
if (phyCnt1 < aniState->ofdmPhyErrBase ||
phyCnt2 < aniState->cckPhyErrBase) {
if (phyCnt1 < aniState->ofdmPhyErrBase) {
ath_print(common, ATH_DBG_ANI,
"phyCnt1 0x%x, resetting "
"counter value to 0x%x\n",
phyCnt1,
aniState->ofdmPhyErrBase);
REG_WRITE(ah, AR_PHY_ERR_1,
aniState->ofdmPhyErrBase);
REG_WRITE(ah, AR_PHY_ERR_MASK_1,
AR_PHY_ERR_OFDM_TIMING);
}
if (phyCnt2 < aniState->cckPhyErrBase) {
ath_print(common, ATH_DBG_ANI,
"phyCnt2 0x%x, resetting "
"counter value to 0x%x\n",
phyCnt2,
aniState->cckPhyErrBase);
REG_WRITE(ah, AR_PHY_ERR_2,
aniState->cckPhyErrBase);
REG_WRITE(ah, AR_PHY_ERR_MASK_2,
AR_PHY_ERR_CCK_TIMING);
}
return;
}
ofdmPhyErrCnt = phyCnt1 - aniState->ofdmPhyErrBase;
ah->stats.ast_ani_ofdmerrs +=
ofdmPhyErrCnt - aniState->ofdmPhyErrCount;
aniState->ofdmPhyErrCount = ofdmPhyErrCnt;
cckPhyErrCnt = phyCnt2 - aniState->cckPhyErrBase;
ah->stats.ast_ani_cckerrs +=
cckPhyErrCnt - aniState->cckPhyErrCount;
aniState->cckPhyErrCount = cckPhyErrCnt;
if (aniState->listenTime > 5 * ah->aniperiod) {
if (aniState->ofdmPhyErrCount <= aniState->listenTime *
aniState->ofdmTrigLow / 1000 &&
aniState->cckPhyErrCount <= aniState->listenTime *
aniState->cckTrigLow / 1000)
ath9k_hw_ani_lower_immunity(ah);
ath9k_ani_restart_old(ah);
} else if (aniState->listenTime > ah->aniperiod) {
if (aniState->ofdmPhyErrCount > aniState->listenTime *
aniState->ofdmTrigHigh / 1000) {
ath9k_hw_ani_ofdm_err_trigger_old(ah);
ath9k_ani_restart_old(ah);
} else if (aniState->cckPhyErrCount >
aniState->listenTime * aniState->cckTrigHigh /
1000) {
ath9k_hw_ani_cck_err_trigger_old(ah);
ath9k_ani_restart_old(ah);
}
}
}
static void ath9k_hw_ani_monitor_new(struct ath_hw *ah,
struct ath9k_channel *chan)
{
struct ar5416AniState *aniState;
struct ath_common *common = ath9k_hw_common(ah);
int32_t listenTime;
u32 phyCnt1, phyCnt2;
u32 ofdmPhyErrCnt, cckPhyErrCnt;
u32 ofdmPhyErrRate, cckPhyErrRate;
if (!DO_ANI(ah))
return;
aniState = ah->curani;
if (WARN_ON(!aniState))
return;
listenTime = ath9k_hw_ani_get_listen_time(ah);
if (listenTime <= 0) {
ah->stats.ast_ani_lneg++;
/* restart ANI period if listenTime is invalid */
ath_print(common, ATH_DBG_ANI,
"listenTime=%d - on new ani monitor\n",
listenTime);
ath9k_ani_restart_new(ah);
return;
}
aniState->listenTime += listenTime;
ath9k_hw_update_mibstats(ah, &ah->ah_mibStats);
phyCnt1 = REG_READ(ah, AR_PHY_ERR_1);
phyCnt2 = REG_READ(ah, AR_PHY_ERR_2);
if (phyCnt1 < aniState->ofdmPhyErrBase ||
phyCnt2 < aniState->cckPhyErrBase) {
if (phyCnt1 < aniState->ofdmPhyErrBase) {
ath_print(common, ATH_DBG_ANI,
"phyCnt1 0x%x, resetting "
"counter value to 0x%x\n",
phyCnt1,
aniState->ofdmPhyErrBase);
REG_WRITE(ah, AR_PHY_ERR_1,
aniState->ofdmPhyErrBase);
REG_WRITE(ah, AR_PHY_ERR_MASK_1,
AR_PHY_ERR_OFDM_TIMING);
}
if (phyCnt2 < aniState->cckPhyErrBase) {
ath_print(common, ATH_DBG_ANI,
"phyCnt2 0x%x, resetting "
"counter value to 0x%x\n",
phyCnt2,
aniState->cckPhyErrBase);
REG_WRITE(ah, AR_PHY_ERR_2,
aniState->cckPhyErrBase);
REG_WRITE(ah, AR_PHY_ERR_MASK_2,
AR_PHY_ERR_CCK_TIMING);
}
return;
}
ofdmPhyErrCnt = phyCnt1 - aniState->ofdmPhyErrBase;
ah->stats.ast_ani_ofdmerrs +=
ofdmPhyErrCnt - aniState->ofdmPhyErrCount;
aniState->ofdmPhyErrCount = ofdmPhyErrCnt;
cckPhyErrCnt = phyCnt2 - aniState->cckPhyErrBase;
ah->stats.ast_ani_cckerrs +=
cckPhyErrCnt - aniState->cckPhyErrCount;
aniState->cckPhyErrCount = cckPhyErrCnt;
ath_print(common, ATH_DBG_ANI,
"Errors: OFDM=0x%08x-0x%08x=%d "
"CCK=0x%08x-0x%08x=%d\n",
phyCnt1,
aniState->ofdmPhyErrBase,
ofdmPhyErrCnt,
phyCnt2,
aniState->cckPhyErrBase,
cckPhyErrCnt);
ofdmPhyErrRate = aniState->ofdmPhyErrCount * 1000 /
aniState->listenTime;
cckPhyErrRate = aniState->cckPhyErrCount * 1000 /
aniState->listenTime;
ath_print(common, ATH_DBG_ANI,
"listenTime=%d OFDM:%d errs=%d/s CCK:%d "
"errs=%d/s ofdm_turn=%d\n",
listenTime, aniState->ofdmNoiseImmunityLevel,
ofdmPhyErrRate, aniState->cckNoiseImmunityLevel,
cckPhyErrRate, aniState->ofdmsTurn);
if (aniState->listenTime > 5 * ah->aniperiod) {
if (ofdmPhyErrRate <= aniState->ofdmTrigLow &&
cckPhyErrRate <= aniState->cckTrigLow) {
ath_print(common, ATH_DBG_ANI,
"1. listenTime=%d OFDM:%d errs=%d/s(<%d) "
"CCK:%d errs=%d/s(<%d) -> "
"ath9k_hw_ani_lower_immunity()\n",
aniState->listenTime,
aniState->ofdmNoiseImmunityLevel,
ofdmPhyErrRate,
aniState->ofdmTrigLow,
aniState->cckNoiseImmunityLevel,
cckPhyErrRate,
aniState->cckTrigLow);
ath9k_hw_ani_lower_immunity(ah);
aniState->ofdmsTurn = !aniState->ofdmsTurn;
}
ath_print(common, ATH_DBG_ANI,
"1 listenTime=%d ofdm=%d/s cck=%d/s - "
"calling ath9k_ani_restart_new()\n",
aniState->listenTime, ofdmPhyErrRate, cckPhyErrRate);
ath9k_ani_restart_new(ah);
} else if (aniState->listenTime > ah->aniperiod) {
/* check to see if need to raise immunity */
if (ofdmPhyErrRate > aniState->ofdmTrigHigh &&
(cckPhyErrRate <= aniState->cckTrigHigh ||
aniState->ofdmsTurn)) {
ath_print(common, ATH_DBG_ANI,
"2 listenTime=%d OFDM:%d errs=%d/s(>%d) -> "
"ath9k_hw_ani_ofdm_err_trigger_new()\n",
aniState->listenTime,
aniState->ofdmNoiseImmunityLevel,
ofdmPhyErrRate,
aniState->ofdmTrigHigh);
ath9k_hw_ani_ofdm_err_trigger_new(ah);
ath9k_ani_restart_new(ah);
aniState->ofdmsTurn = false;
} else if (cckPhyErrRate > aniState->cckTrigHigh) {
ath_print(common, ATH_DBG_ANI,
"3 listenTime=%d CCK:%d errs=%d/s(>%d) -> "
"ath9k_hw_ani_cck_err_trigger_new()\n",
aniState->listenTime,
aniState->cckNoiseImmunityLevel,
cckPhyErrRate,
aniState->cckTrigHigh);
ath9k_hw_ani_cck_err_trigger_new(ah);
ath9k_ani_restart_new(ah);
aniState->ofdmsTurn = true;
}
}
}
void ath9k_enable_mib_counters(struct ath_hw *ah)
{
struct ath_common *common = ath9k_hw_common(ah);
ath_print(common, ATH_DBG_ANI, "Enable MIB counters\n");
ath9k_hw_update_mibstats(ah, &ah->ah_mibStats);
ENABLE_REGWRITE_BUFFER(ah);
REG_WRITE(ah, AR_FILT_OFDM, 0);
REG_WRITE(ah, AR_FILT_CCK, 0);
REG_WRITE(ah, AR_MIBC,
~(AR_MIBC_COW | AR_MIBC_FMC | AR_MIBC_CMC | AR_MIBC_MCS)
& 0x0f);
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);
DISABLE_REGWRITE_BUFFER(ah);
}
/* Freeze the MIB counters, get the stats and then clear them */
void ath9k_hw_disable_mib_counters(struct ath_hw *ah)
{
struct ath_common *common = ath9k_hw_common(ah);
ath_print(common, ATH_DBG_ANI, "Disable MIB counters\n");
REG_WRITE(ah, AR_MIBC, AR_MIBC_FMC);
ath9k_hw_update_mibstats(ah, &ah->ah_mibStats);
REG_WRITE(ah, AR_MIBC, AR_MIBC_CMC);
REG_WRITE(ah, AR_FILT_OFDM, 0);
REG_WRITE(ah, AR_FILT_CCK, 0);
}
EXPORT_SYMBOL(ath9k_hw_disable_mib_counters);
u32 ath9k_hw_GetMibCycleCountsPct(struct ath_hw *ah,
u32 *rxc_pcnt,
u32 *rxf_pcnt,
u32 *txf_pcnt)
{
struct ath_common *common = ath9k_hw_common(ah);
static u32 cycles, rx_clear, rx_frame, tx_frame;
u32 good = 1;
u32 rc = REG_READ(ah, AR_RCCNT);
u32 rf = REG_READ(ah, AR_RFCNT);
u32 tf = REG_READ(ah, AR_TFCNT);
u32 cc = REG_READ(ah, AR_CCCNT);
if (cycles == 0 || cycles > cc) {
ath_print(common, ATH_DBG_ANI,
"cycle counter wrap. ExtBusy = 0\n");
good = 0;
} else {
u32 cc_d = cc - cycles;
u32 rc_d = rc - rx_clear;
u32 rf_d = rf - rx_frame;
u32 tf_d = tf - tx_frame;
if (cc_d != 0) {
*rxc_pcnt = rc_d * 100 / cc_d;
*rxf_pcnt = rf_d * 100 / cc_d;
*txf_pcnt = tf_d * 100 / cc_d;
} else {
good = 0;
}
}
cycles = cc;
rx_frame = rf;
rx_clear = rc;
tx_frame = tf;
return good;
}
/*
* Process a MIB interrupt. We may potentially be invoked because
* any of the MIB counters overflow/trigger so don't assume we're
* here because a PHY error counter triggered.
*/
static void ath9k_hw_proc_mib_event_old(struct ath_hw *ah)
{
u32 phyCnt1, phyCnt2;
/* Reset these counters regardless */
REG_WRITE(ah, AR_FILT_OFDM, 0);
REG_WRITE(ah, AR_FILT_CCK, 0);
if (!(REG_READ(ah, AR_SLP_MIB_CTRL) & AR_SLP_MIB_PENDING))
REG_WRITE(ah, AR_SLP_MIB_CTRL, AR_SLP_MIB_CLEAR);
/* Clear the mib counters and save them in the stats */
ath9k_hw_update_mibstats(ah, &ah->ah_mibStats);
if (!DO_ANI(ah)) {
/*
* We must always clear the interrupt cause by
* resetting the phy error regs.
*/
REG_WRITE(ah, AR_PHY_ERR_1, 0);
REG_WRITE(ah, AR_PHY_ERR_2, 0);
return;
}
/* NB: these are not reset-on-read */
phyCnt1 = REG_READ(ah, AR_PHY_ERR_1);
phyCnt2 = REG_READ(ah, AR_PHY_ERR_2);
if (((phyCnt1 & AR_MIBCNT_INTRMASK) == AR_MIBCNT_INTRMASK) ||
((phyCnt2 & AR_MIBCNT_INTRMASK) == AR_MIBCNT_INTRMASK)) {
struct ar5416AniState *aniState = ah->curani;
u32 ofdmPhyErrCnt, cckPhyErrCnt;
/* NB: only use ast_ani_*errs with AH_PRIVATE_DIAG */
ofdmPhyErrCnt = phyCnt1 - aniState->ofdmPhyErrBase;
ah->stats.ast_ani_ofdmerrs +=
ofdmPhyErrCnt - aniState->ofdmPhyErrCount;
aniState->ofdmPhyErrCount = ofdmPhyErrCnt;
cckPhyErrCnt = phyCnt2 - aniState->cckPhyErrBase;
ah->stats.ast_ani_cckerrs +=
cckPhyErrCnt - aniState->cckPhyErrCount;
aniState->cckPhyErrCount = cckPhyErrCnt;
/*
* NB: figure out which counter triggered. If both
* trigger we'll only deal with one as the processing
* clobbers the error counter so the trigger threshold
* check will never be true.
*/
if (aniState->ofdmPhyErrCount > aniState->ofdmTrigHigh)
ath9k_hw_ani_ofdm_err_trigger_new(ah);
if (aniState->cckPhyErrCount > aniState->cckTrigHigh)
ath9k_hw_ani_cck_err_trigger_old(ah);
/* NB: always restart to insure the h/w counters are reset */
ath9k_ani_restart_old(ah);
}
}
/*
* Process a MIB interrupt. We may potentially be invoked because
* any of the MIB counters overflow/trigger so don't assume we're
* here because a PHY error counter triggered.
*/
static void ath9k_hw_proc_mib_event_new(struct ath_hw *ah)
{
u32 phyCnt1, phyCnt2;
/* Reset these counters regardless */
REG_WRITE(ah, AR_FILT_OFDM, 0);
REG_WRITE(ah, AR_FILT_CCK, 0);
if (!(REG_READ(ah, AR_SLP_MIB_CTRL) & AR_SLP_MIB_PENDING))
REG_WRITE(ah, AR_SLP_MIB_CTRL, AR_SLP_MIB_CLEAR);
/* Clear the mib counters and save them in the stats */
ath9k_hw_update_mibstats(ah, &ah->ah_mibStats);
if (!DO_ANI(ah)) {
/*
* We must always clear the interrupt cause by
* resetting the phy error regs.
*/
REG_WRITE(ah, AR_PHY_ERR_1, 0);
REG_WRITE(ah, AR_PHY_ERR_2, 0);
return;
}
/* NB: these are not reset-on-read */
phyCnt1 = REG_READ(ah, AR_PHY_ERR_1);
phyCnt2 = REG_READ(ah, AR_PHY_ERR_2);
/* NB: always restart to insure the h/w counters are reset */
if (((phyCnt1 & AR_MIBCNT_INTRMASK) == AR_MIBCNT_INTRMASK) ||
((phyCnt2 & AR_MIBCNT_INTRMASK) == AR_MIBCNT_INTRMASK))
ath9k_ani_restart_new(ah);
}
void ath9k_hw_ani_setup(struct ath_hw *ah)
{
int i;
const int totalSizeDesired[] = { -55, -55, -55, -55, -62 };
const int coarseHigh[] = { -14, -14, -14, -14, -12 };
const int coarseLow[] = { -64, -64, -64, -64, -70 };
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)
{
struct ath_common *common = ath9k_hw_common(ah);
int i;
ath_print(common, ATH_DBG_ANI, "Initialize ANI\n");
memset(ah->ani, 0, sizeof(ah->ani));
for (i = 0; i < ARRAY_SIZE(ah->ani); i++) {
if (AR_SREV_9300_20_OR_LATER(ah) || modparam_force_new_ani) {
ah->ani[i].ofdmTrigHigh = ATH9K_ANI_OFDM_TRIG_HIGH_NEW;
ah->ani[i].ofdmTrigLow = ATH9K_ANI_OFDM_TRIG_LOW_NEW;
ah->ani[i].cckTrigHigh = ATH9K_ANI_CCK_TRIG_HIGH_NEW;
ah->ani[i].cckTrigLow = ATH9K_ANI_CCK_TRIG_LOW_NEW;
ah->ani[i].spurImmunityLevel =
ATH9K_ANI_SPUR_IMMUNE_LVL_NEW;
ah->ani[i].firstepLevel = ATH9K_ANI_FIRSTEP_LVL_NEW;
ah->ani[i].ofdmPhyErrBase = 0;
ah->ani[i].cckPhyErrBase = 0;
if (AR_SREV_9300_20_OR_LATER(ah))
ah->ani[i].mrcCCKOff =
!ATH9K_ANI_ENABLE_MRC_CCK;
else
ah->ani[i].mrcCCKOff = true;
ah->ani[i].ofdmsTurn = true;
} else {
ah->ani[i].ofdmTrigHigh = ATH9K_ANI_OFDM_TRIG_HIGH_OLD;
ah->ani[i].ofdmTrigLow = ATH9K_ANI_OFDM_TRIG_LOW_OLD;
ah->ani[i].cckTrigHigh = ATH9K_ANI_CCK_TRIG_HIGH_OLD;
ah->ani[i].cckTrigLow = ATH9K_ANI_CCK_TRIG_LOW_OLD;
ah->ani[i].spurImmunityLevel =
ATH9K_ANI_SPUR_IMMUNE_LVL_OLD;
ah->ani[i].firstepLevel = ATH9K_ANI_FIRSTEP_LVL_OLD;
ah->ani[i].ofdmPhyErrBase =
AR_PHY_COUNTMAX - ATH9K_ANI_OFDM_TRIG_HIGH_OLD;
ah->ani[i].cckPhyErrBase =
AR_PHY_COUNTMAX - ATH9K_ANI_CCK_TRIG_HIGH_OLD;
ah->ani[i].cckWeakSigThreshold =
ATH9K_ANI_CCK_WEAK_SIG_THR;
}
ah->ani[i].rssiThrHigh = ATH9K_ANI_RSSI_THR_HIGH;
ah->ani[i].rssiThrLow = ATH9K_ANI_RSSI_THR_LOW;
ah->ani[i].ofdmWeakSigDetectOff =
!ATH9K_ANI_USE_OFDM_WEAK_SIG;
ah->ani[i].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 (AR_SREV_9300_20_OR_LATER(ah) || modparam_force_new_ani) {
const struct ani_ofdm_level_entry *entry_ofdm;
const struct ani_cck_level_entry *entry_cck;
entry_ofdm = &ofdm_level_table[ATH9K_ANI_OFDM_DEF_LEVEL];
entry_cck = &cck_level_table[ATH9K_ANI_CCK_DEF_LEVEL];
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;
}
ath_print(common, ATH_DBG_ANI,
"Setting OfdmErrBase = 0x%08x\n",
ah->ani[0].ofdmPhyErrBase);
ath_print(common, ATH_DBG_ANI, "Setting cckErrBase = 0x%08x\n",
ah->ani[0].cckPhyErrBase);
ENABLE_REGWRITE_BUFFER(ah);
REG_WRITE(ah, AR_PHY_ERR_1, ah->ani[0].ofdmPhyErrBase);
REG_WRITE(ah, AR_PHY_ERR_2, ah->ani[0].cckPhyErrBase);
REGWRITE_BUFFER_FLUSH(ah);
DISABLE_REGWRITE_BUFFER(ah);
ath9k_enable_mib_counters(ah);
if (ah->config.enable_ani)
ah->proc_phyerr |= HAL_PROCESS_ANI;
}
void ath9k_hw_attach_ani_ops_old(struct ath_hw *ah)
{
struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah);
struct ath_hw_ops *ops = ath9k_hw_ops(ah);
priv_ops->ani_reset = ath9k_ani_reset_old;
priv_ops->ani_lower_immunity = ath9k_hw_ani_lower_immunity_old;
ops->ani_proc_mib_event = ath9k_hw_proc_mib_event_old;
ops->ani_monitor = ath9k_hw_ani_monitor_old;
ath_print(ath9k_hw_common(ah), ATH_DBG_ANY, "Using ANI v1\n");
}
void ath9k_hw_attach_ani_ops_new(struct ath_hw *ah)
{
struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah);
struct ath_hw_ops *ops = ath9k_hw_ops(ah);
priv_ops->ani_reset = ath9k_ani_reset_new;
priv_ops->ani_lower_immunity = ath9k_hw_ani_lower_immunity_new;
ops->ani_proc_mib_event = ath9k_hw_proc_mib_event_new;
ops->ani_monitor = ath9k_hw_ani_monitor_new;
ath_print(ath9k_hw_common(ah), ATH_DBG_ANY, "Using ANI v2\n");
}
