void
ar5416ConfigureSpectralScan(struct ath_hal *ah, HAL_SPECTRAL_PARAM *ss)
{
u_int32_t val;
ar5416PrepSpectralScan(ah);
val = OS_REG_READ(ah, AR_PHY_SPECTRAL_SCAN);
if (ss->ss_fft_period != HAL_SPECTRAL_PARAM_NOVAL) {
val &= ~AR_PHY_SPECTRAL_SCAN_FFT_PERIOD;
val |= SM(ss->ss_fft_period, AR_PHY_SPECTRAL_SCAN_FFT_PERIOD);
}
if (ss->ss_period != HAL_SPECTRAL_PARAM_NOVAL) {
val &= ~AR_PHY_SPECTRAL_SCAN_PERIOD;
val |= SM(ss->ss_period, AR_PHY_SPECTRAL_SCAN_PERIOD);
}
if (ss->ss_period != HAL_SPECTRAL_PARAM_NOVAL) {
val &= ~AR_PHY_SPECTRAL_SCAN_PERIOD;
val |= SM(ss->ss_period, AR_PHY_SPECTRAL_SCAN_PERIOD);
}
/* This section is different for Kiwi and Merlin */
if( AR_SREV_MERLIN(ah) ) {
if (ss->ss_count != HAL_SPECTRAL_PARAM_NOVAL) {
val &= ~AR_PHY_SPECTRAL_SCAN_COUNT;
val |= SM(ss->ss_count, AR_PHY_SPECTRAL_SCAN_COUNT);
}
if (ss->ss_short_report == AH_TRUE) {
val |= AR_PHY_SPECTRAL_SCAN_SHORT_REPEAT;
} else {
val &= ~AR_PHY_SPECTRAL_SCAN_SHORT_REPEAT;
}
} else {
if (ss->ss_count != HAL_SPECTRAL_PARAM_NOVAL) {
/* In Merlin, for continous scan, scan_count = 128.
* In case of Kiwi, this value should be 0
*/
if( ss->ss_count == 128 ) ss->ss_count = 0;
val &= ~AR_PHY_SPECTRAL_SCAN_COUNT_KIWI;
val |= SM(ss->ss_count, AR_PHY_SPECTRAL_SCAN_COUNT_KIWI);
}
if (ss->ss_short_report == AH_TRUE) {
val |= AR_PHY_SPECTRAL_SCAN_SHORT_REPEAT_KIWI;
} else {
val &= ~AR_PHY_SPECTRAL_SCAN_SHORT_REPEAT_KIWI;
}
//Select the mask to be same as before
val |= AR_PHY_SPECTRAL_SCAN_PHYERR_MASK_SELECT_KIWI;
}
// Enable spectral scan
OS_REG_WRITE(ah, AR_PHY_SPECTRAL_SCAN, val | AR_PHY_SPECTRAL_SCAN_ENA);
ar5416GetSpectralParams(ah, ss);
}
/*--ar5416ConfigureScanCount--
* Sets the scan count to inVal
*/
void ar5416ConfigScanCount(struct ath_hal *ah, u_int32_t inVal)
{
u_int32_t val;
val = OS_REG_READ(ah, AR_PHY_SPECTRAL_SCAN);
if( AR_SREV_MERLIN(ah)) {
val &= ~AR_PHY_SPECTRAL_SCAN_COUNT;
val |= SM(inVal, AR_PHY_SPECTRAL_SCAN_COUNT);
} else {
val &= ~AR_PHY_SPECTRAL_SCAN_COUNT_KIWI;
val |= SM(inVal, AR_PHY_SPECTRAL_SCAN_COUNT_KIWI);
}
OS_REG_WRITE(ah, AR_PHY_SPECTRAL_SCAN, val );
}
/*--ar5416ConfigureShortRpt--
* Sets/resets the short report bit based on inVal
*/
void ar5416ConfigShortRpt(struct ath_hal *ah, u_int32_t inVal)
{
u_int32_t val;
val = OS_REG_READ(ah, AR_PHY_SPECTRAL_SCAN);
if( AR_SREV_MERLIN(ah)) {
if(inVal)
val |= AR_PHY_SPECTRAL_SCAN_SHORT_REPEAT;
else
val &= ~(AR_PHY_SPECTRAL_SCAN_SHORT_REPEAT);
} else {
if(inVal)
val |= AR_PHY_SPECTRAL_SCAN_SHORT_REPEAT_KIWI;
else
val &= ~(AR_PHY_SPECTRAL_SCAN_SHORT_REPEAT_KIWI);
}
OS_REG_WRITE(ah, AR_PHY_SPECTRAL_SCAN, val );
}
/*
* Get the spectral parameter values and return them in the pe
* structure
*/
void
ar5416GetSpectralParams(struct ath_hal *ah, HAL_SPECTRAL_PARAM *ss)
{
uint32_t val;
val = OS_REG_READ(ah, AR_PHY_SPECTRAL_SCAN);
ss->ss_fft_period = MS(val, AR_PHY_SPECTRAL_SCAN_FFT_PERIOD);
ss->ss_period = MS(val, AR_PHY_SPECTRAL_SCAN_PERIOD);
if (AR_SREV_MERLIN(ah) ) {
ss->ss_count = MS(val, AR_PHY_SPECTRAL_SCAN_COUNT);
ss->ss_short_report = MS(val, AR_PHY_SPECTRAL_SCAN_SHORT_REPEAT);
} else {
ss->ss_count = MS(val, AR_PHY_SPECTRAL_SCAN_COUNT_KIWI);
ss->ss_short_report = MS(val, AR_PHY_SPECTRAL_SCAN_SHORT_REPEAT_KIWI);
}
val = OS_REG_READ(ah, AR_PHY_RADAR_1);
ss->radar_bin_thresh_sel = MS(val, AR_PHY_RADAR_1_BIN_THRESH_SELECT);
}
/*
* Reads the Interrupt Status Register value from the NIC, thus deasserting
* the interrupt line, and returns both the masked and unmasked mapped ISR
* values. The value returned is mapped to abstract the hw-specific bit
* locations in the Interrupt Status Register.
*
* (*masked) is cleared on initial call.
*
* Returns: A hardware-abstracted bitmap of all non-masked-out
* interrupts pending, as well as an unmasked value
*/
HAL_BOOL
ar5416GetPendingInterrupts(struct ath_hal *ah, HAL_INT *masked)
{
uint32_t isr, isr0, isr1, sync_cause;
/*
* Verify there's a mac interrupt and the RTC is on.
*/
if ((OS_REG_READ(ah, AR_INTR_ASYNC_CAUSE) & AR_INTR_MAC_IRQ) &&
(OS_REG_READ(ah, AR_RTC_STATUS) & AR_RTC_STATUS_M) == AR_RTC_STATUS_ON)
isr = OS_REG_READ(ah, AR_ISR);
else
isr = 0;
sync_cause = OS_REG_READ(ah, AR_INTR_SYNC_CAUSE);
sync_cause &= AR_INTR_SYNC_DEFAULT;
*masked = 0;
if (isr == 0 && sync_cause == 0)
return AH_FALSE;
if (isr != 0) {
struct ath_hal_5212 *ahp = AH5212(ah);
uint32_t mask2;
mask2 = 0;
if (isr & AR_ISR_BCNMISC) {
uint32_t isr2 = OS_REG_READ(ah, AR_ISR_S2);
if (isr2 & AR_ISR_S2_TIM)
mask2 |= HAL_INT_TIM;
if (isr2 & AR_ISR_S2_DTIM)
mask2 |= HAL_INT_DTIM;
if (isr2 & AR_ISR_S2_DTIMSYNC)
mask2 |= HAL_INT_DTIMSYNC;
if (isr2 & (AR_ISR_S2_CABEND ))
mask2 |= HAL_INT_CABEND;
if (isr2 & AR_ISR_S2_GTT)
mask2 |= HAL_INT_GTT;
if (isr2 & AR_ISR_S2_CST)
mask2 |= HAL_INT_CST;
if (isr2 & AR_ISR_S2_TSFOOR)
mask2 |= HAL_INT_TSFOOR;
}
isr = OS_REG_READ(ah, AR_ISR_RAC);
if (isr == 0xffffffff) {
*masked = 0;
return AH_FALSE;
}
*masked = isr & HAL_INT_COMMON;
if (isr & (AR_ISR_RXOK | AR_ISR_RXERR))
*masked |= HAL_INT_RX;
if (isr & (AR_ISR_TXOK | AR_ISR_TXDESC | AR_ISR_TXERR | AR_ISR_TXEOL)) {
*masked |= HAL_INT_TX;
isr0 = OS_REG_READ(ah, AR_ISR_S0_S);
ahp->ah_intrTxqs |= MS(isr0, AR_ISR_S0_QCU_TXOK);
ahp->ah_intrTxqs |= MS(isr0, AR_ISR_S0_QCU_TXDESC);
isr1 = OS_REG_READ(ah, AR_ISR_S1_S);
ahp->ah_intrTxqs |= MS(isr1, AR_ISR_S1_QCU_TXERR);
ahp->ah_intrTxqs |= MS(isr1, AR_ISR_S1_QCU_TXEOL);
}
if (AR_SREV_MERLIN(ah) || AR_SREV_KITE(ah)) {
uint32_t isr5;
isr5 = OS_REG_READ(ah, AR_ISR_S5_S);
if (isr5 & AR_ISR_S5_TIM_TIMER)
*masked |= HAL_INT_TIM_TIMER;
}
/* Interrupt Mitigation on AR5416 */
#ifdef AR5416_INT_MITIGATION
if (isr & (AR_ISR_RXMINTR | AR_ISR_RXINTM))
*masked |= HAL_INT_RX;
if (isr & (AR_ISR_TXMINTR | AR_ISR_TXINTM))
*masked |= HAL_INT_TX;
#endif
*masked |= mask2;
}
if (sync_cause != 0) {
if (sync_cause & (AR_INTR_SYNC_HOST1_FATAL | AR_INTR_SYNC_HOST1_PERR)) {
*masked |= HAL_INT_FATAL;
}
if (sync_cause & AR_INTR_SYNC_RADM_CPL_TIMEOUT) {
HALDEBUG(ah, HAL_DEBUG_ANY, "%s: RADM CPL timeout\n",
__func__);
OS_REG_WRITE(ah, AR_RC, AR_RC_HOSTIF);
OS_REG_WRITE(ah, AR_RC, 0);
*masked |= HAL_INT_FATAL;
}
/*
* On fatal errors collect ISR state for debugging.
*/
if (*masked & HAL_INT_FATAL) {
AH_PRIVATE(ah)->ah_fatalState[0] = isr;
AH_PRIVATE(ah)->ah_fatalState[1] = sync_cause;
HALDEBUG(ah, HAL_DEBUG_ANY,
"%s: fatal error, ISR_RAC 0x%x SYNC_CAUSE 0x%x\n",
__func__, isr, sync_cause);
}
OS_REG_WRITE(ah, AR_INTR_SYNC_CAUSE_CLR, sync_cause);
/* NB: flush write */
(void) OS_REG_READ(ah, AR_INTR_SYNC_CAUSE_CLR);
}
return AH_TRUE;
}
HAL_BOOL
ar5416WowEnable(struct ath_hal *ah, u_int32_t pattern_enable, u_int32_t timeoutInSeconds, int clearbssid)
{
uint32_t init_val, val, rval=0;
const int ka_delay = 4; /* Delay of 4 millisec between two KeepAlive's */
uint32_t wow_event_mask;
/*
* ah_wow_event_mask is a mask to the AR_WOW_PATTERN_REG register to indicate
* which WOW events that we have enabled. The WOW Events are from the
* pattern_enable in this function and pattern_count of ar5416WowApplyPattern()
*/
wow_event_mask = AH_PRIVATE(ah)->ah_wow_event_mask;
/*
* Untie Power-On-Reset from the PCI-E Reset. When we are in WOW sleep,
* we do not want the Reset from the PCI-E to disturb our hw state.
*/
if (AR_SREV_MERLIN_20_OR_LATER(ah) &&
(AH_PRIVATE(ah)->ah_is_pci_express == AH_TRUE)) {
/*
* We need to untie the internal POR (power-on-reset) to the external
* PCI-E reset. We also need to tie the PCI-E Phy reset to the PCI-E reset.
*/
u_int32_t wa_reg_val;
if (AR_SREV_KITE(ah) || AR_SREV_KIWI(ah))
wa_reg_val = AR9285_WA_DEFAULT;
else
wa_reg_val = AR9280_WA_DEFAULT;
/*
* In Merlin and Kite, bit 14 in WA register (disable L1) should only
* be set when device enters D3 and be cleared when device comes back to D0.
*/
if (AH_PRIVATE(ah)->ah_config.ath_hal_pcie_waen & AR_WA_D3_L1_DISABLE)
wa_reg_val = wa_reg_val | AR_WA_D3_L1_DISABLE;
wa_reg_val = wa_reg_val & ~(AR_WA_UNTIE_RESET_EN);
wa_reg_val = wa_reg_val | AR_WA_RESET_EN | AR_WA_POR_SHORT;
OS_REG_WRITE(ah, AR_WA, wa_reg_val);
if (!AR_SREV_KITE(ah) || AR_SREV_KITE_12_OR_LATER(ah)) {
/* s
* For WOW sleep, we reprogram the SerDes so that the PLL and CHK REQ
* are both enabled. This uses more power but the Maverick team reported
* that otherwise, WOW sleep is unable and chip may disappears.
*/
ar928xConfigSerDes_WowSleep(ah);
}
}
/*
* Set the power states appropriately and enable pme.
*/
val = OS_REG_READ(ah, AR_PCIE_PM_CTRL);
val |= AR_PMCTRL_HOST_PME_EN | \
AR_PMCTRL_PWR_PM_CTRL_ENA | AR_PMCTRL_AUX_PWR_DET;
val &= ~AR_PMCTRL_WOW_PME_CLR;
OS_REG_WRITE(ah, AR_PCIE_PM_CTRL, val);
/*
* Setup for for:
* - beacon misses
* - magic pattern
* - keep alive timeout
* - pattern matching
*/
/*
* Program some default values for keep-alives, beacon misses, etc.
*/
init_val = OS_REG_READ(ah, AR_WOW_PATTERN_REG);
val = AR_WOW_BACK_OFF_SHIFT(AR_WOW_PAT_BACKOFF) | init_val;
OS_REG_WRITE(ah, AR_WOW_PATTERN_REG, val);
rval = OS_REG_READ(ah, AR_WOW_PATTERN_REG);
init_val = OS_REG_READ(ah, AR_WOW_COUNT_REG);
val = AR_WOW_AIFS_CNT(AR_WOW_CNT_AIFS_CNT) | \
AR_WOW_SLOT_CNT(AR_WOW_CNT_SLOT_CNT) | \
AR_WOW_KEEP_ALIVE_CNT(AR_WOW_CNT_KA_CNT);
OS_REG_WRITE(ah, AR_WOW_COUNT_REG, val);
rval = OS_REG_READ(ah, AR_WOW_COUNT_REG);
init_val = OS_REG_READ(ah, AR_WOW_BCN_TIMO_REG);
if (pattern_enable & AH_WOW_BEACON_MISS) {
val = AR_WOW_BEACON_TIMO;
}
else {
/* We are not using the beacon miss. Program a large value. */
val = AR_WOW_BEACON_TIMO_MAX;
}
OS_REG_WRITE(ah, AR_WOW_BCN_TIMO_REG, val);
rval = OS_REG_READ(ah, AR_WOW_BCN_TIMO_REG);
init_val = OS_REG_READ(ah, AR_WOW_KEEP_ALIVE_TIMO_REG);
/*
* Keep Alive Timo in ms, except Merlin - see EV 62708
*/
if (pattern_enable == 0 || AR_SREV_MERLIN(ah)) {
val = AR_WOW_KEEP_ALIVE_NEVER;
} else {
val = AH_PRIVATE(ah)->ah_config.ath_hal_keep_alive_timeout * 32;
}
OS_REG_WRITE(ah, AR_WOW_KEEP_ALIVE_TIMO_REG, val);
rval = OS_REG_READ(ah, AR_WOW_KEEP_ALIVE_TIMO_REG);
init_val = OS_REG_READ(ah, AR_WOW_KEEP_ALIVE_DELAY_REG);
/*
* Keep Alive delay in us. Based on 'power on clock' , therefore in uSec
*/
val = ka_delay * 1000;
OS_REG_WRITE(ah, AR_WOW_KEEP_ALIVE_DELAY_REG, val);
rval = OS_REG_READ(ah, AR_WOW_KEEP_ALIVE_DELAY_REG);
/*
* Create KeepAlive Pattern to respond to beacons.
*/
ar5416WowCreateKeepAlivePattern(ah);
/*
* Configure Mac Wow Registers.
*/
val = OS_REG_READ(ah, AR_WOW_KEEP_ALIVE_REG);
/*
* Send keep alive timeouts anyway.
*/
val &= ~AR_WOW_KEEP_ALIVE_AUTO_DIS;
if (pattern_enable & AH_WOW_LINK_CHANGE) {
val &= ~ AR_WOW_KEEP_ALIVE_FAIL_DIS;
wow_event_mask |= AR_WOW_KEEP_ALIVE_FAIL;
} else {
val |= AR_WOW_KEEP_ALIVE_FAIL_DIS;
}
OS_REG_WRITE(ah, AR_WOW_KEEP_ALIVE_REG, val);
val = OS_REG_READ(ah, AR_WOW_KEEP_ALIVE_REG);
val = OS_REG_READ(ah, AR_WOW_BCN_EN_REG);
/*
* We are relying on a bmiss failure. Ensure we have enough
* threshold to prevent false positives.
*/
OS_REG_RMW_FIELD(ah, AR_RSSI_THR, AR_RSSI_THR_BM_THR,
AR_WOW_BMISSTHRESHOLD);
/*
* Beacon miss & user pattern events are broken in Owl.
* Enable only for Merlin.
* The workaround is done at the ath_dev layer using the
* sc->sc_wow_bmiss_intr field.
* XXX: we need to cleanup this workaround before the next chip that
* fixes this issue.
*/
if (!AR_SREV_MERLIN_10_OR_LATER(ah))
pattern_enable &= ~AH_WOW_BEACON_MISS;
if (pattern_enable & AH_WOW_BEACON_MISS) {
val |= AR_WOW_BEACON_FAIL_EN;
wow_event_mask |= AR_WOW_BEACON_FAIL;
} else {
val &= ~AR_WOW_BEACON_FAIL_EN;
}
OS_REG_WRITE(ah, AR_WOW_BCN_EN_REG, val);
val = OS_REG_READ(ah, AR_WOW_BCN_EN_REG);
/*
* Enable the magic packet registers.
*/
val = OS_REG_READ(ah, AR_WOW_PATTERN_REG);
if (pattern_enable & AH_WOW_MAGIC_PATTERN_EN) {
val |= AR_WOW_MAGIC_EN;
wow_event_mask |= AR_WOW_MAGIC_PAT_FOUND;
} else {
val &= ~AR_WOW_MAGIC_EN;
}
val |= AR_WOW_MAC_INTR_EN;
OS_REG_WRITE(ah, AR_WOW_PATTERN_REG, val);
val = OS_REG_READ(ah, AR_WOW_PATTERN_REG);
/* For Kite and later version of the chips
* enable wow pattern match for packets less than
* 256 bytes for all patterns.
*/
if (AR_SREV_KITE_10_OR_LATER(ah)) {
OS_REG_WRITE(ah, AR_WOW_PATTERN_MATCH_LT_256B_REG, AR_WOW_PATTERN_SUPPORTED);
}
/*
* Set the power states appropriately and enable pme.
*/
val = OS_REG_READ(ah, AR_PCIE_PM_CTRL);
val |= AR_PMCTRL_PWR_STATE_D1D3 | AR_PMCTRL_HOST_PME_EN | AR_PMCTRL_PWR_PM_CTRL_ENA;
OS_REG_WRITE(ah, AR_PCIE_PM_CTRL, val);
if (timeoutInSeconds) {
/*
The clearbssid parameter is set only for the case where the wake needs to be
on a timeout. The timeout mechanism, at this time, is specific to Maverick. For a
manuf test, the system is put into sleep with a timer. On timer expiry, the chip
interrupts(timer) and wakes the system. Clearbssid is specified as TRUE since
we do not want a spurious beacon miss. If specified as true, we clear the bssid regs.
*/
// Setup the timer.
OS_REG_WRITE(ah, AR_NEXT_NDP_TIMER, OS_REG_READ(ah, AR_TSF_L32) + timeoutInSeconds * 1000000 ); // convert Timeout to uSecs.
OS_REG_WRITE(ah, AR_NDP_PERIOD, 30 * 1000000); // timer_period = 30 seconds always.
OS_REG_WRITE(ah, AR_TIMER_MODE, OS_REG_READ(ah, AR_TIMER_MODE) | AR_NDP_TIMER_EN);
// Enable the timer interrupt
OS_REG_WRITE(ah, AR_IMR_S5, OS_REG_READ(ah, AR_IMR_S5) | AR_IMR_S5_GENTIMER7);
OS_REG_WRITE(ah, AR_IMR, OS_REG_READ(ah, AR_IMR) | AR_IMR_GENTMR);
if (clearbssid) {
// If the bssid regs are set and all we want is a wake on timer, we run into an issue
// with the wake coming in too early.
OS_REG_WRITE(ah, AR_BSS_ID0, 0);
OS_REG_WRITE(ah, AR_BSS_ID1, 0);
}
}
/*
* enable seq number generation in hw
*/
OS_REG_CLR_BIT(ah, AR_STA_ID1, AR_STA_ID1_PRESERVE_SEQNUM);
ar5416SetPowerModeWowSleep(ah);
AH_PRIVATE(ah)->ah_wow_event_mask = wow_event_mask;
return (AH_TRUE);
}
static HAL_BOOL
ar5416LoadNF(struct ath_hal *ah, const struct ieee80211_channel *chan)
{
static const uint32_t ar5416_cca_regs[] = {
AR_PHY_CCA,
AR_PHY_CH1_CCA,
AR_PHY_CH2_CCA,
AR_PHY_EXT_CCA,
AR_PHY_CH1_EXT_CCA,
AR_PHY_CH2_EXT_CCA
};
struct ar5212NfCalHist *h;
int i;
int32_t val;
uint8_t chainmask;
int16_t default_nf = ar5416GetDefaultNF(ah, chan);
/*
* Force NF calibration for all chains.
*/
if (AR_SREV_KITE(ah)) {
/* Kite has only one chain */
chainmask = 0x9;
} else if (AR_SREV_MERLIN(ah) || AR_SREV_KIWI(ah)) {
/* Merlin/Kiwi has only two chains */
chainmask = 0x1B;
} else {
chainmask = 0x3F;
}
/*
* Write filtered NF values into maxCCApwr register parameter
* so we can load below.
*/
h = AH5416(ah)->ah_cal.nfCalHist;
HALDEBUG(ah, HAL_DEBUG_NFCAL, "CCA: ");
for (i = 0; i < AR5416_NUM_NF_READINGS; i ++) {
/* Don't write to EXT radio CCA registers unless in HT/40 mode */
/* XXX this check should really be cleaner! */
if (i > 2 && !IEEE80211_IS_CHAN_HT40(chan))
continue;
if (chainmask & (1 << i)) {
int16_t nf_val;
if (h)
nf_val = h[i].privNF;
else
nf_val = default_nf;
val = OS_REG_READ(ah, ar5416_cca_regs[i]);
val &= 0xFFFFFE00;
val |= (((uint32_t) nf_val << 1) & 0x1ff);
HALDEBUG(ah, HAL_DEBUG_NFCAL, "[%d: %d]", i, nf_val);
OS_REG_WRITE(ah, ar5416_cca_regs[i], val);
}
}
HALDEBUG(ah, HAL_DEBUG_NFCAL, "\n");
/* Load software filtered NF value into baseband internal minCCApwr variable. */
OS_REG_CLR_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_ENABLE_NF);
OS_REG_CLR_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_NO_UPDATE_NF);
OS_REG_SET_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_NF);
/* Wait for load to complete, should be fast, a few 10s of us. */
if (! ar5212WaitNFCalComplete(ah, 1000)) {
/*
* We timed out waiting for the noisefloor to load, probably due to an
* in-progress rx. Simply return here and allow the load plenty of time
* to complete before the next calibration interval. We need to avoid
* trying to load -50 (which happens below) while the previous load is
* still in progress as this can cause rx deafness. Instead by returning
* here, the baseband nf cal will just be capped by our present
* noisefloor until the next calibration timer.
*/
HALDEBUG(ah, HAL_DEBUG_UNMASKABLE, "Timeout while waiting for "
"nf to load: AR_PHY_AGC_CONTROL=0x%x\n",
OS_REG_READ(ah, AR_PHY_AGC_CONTROL));
return AH_FALSE;
}
/*
* Restore maxCCAPower register parameter again so that we're not capped
* by the median we just loaded. This will be initial (and max) value
* of next noise floor calibration the baseband does.
*/
for (i = 0; i < AR5416_NUM_NF_READINGS; i ++) {
/* Don't write to EXT radio CCA registers unless in HT/40 mode */
/* XXX this check should really be cleaner! */
if (i > 2 && !IEEE80211_IS_CHAN_HT40(chan))
continue;
if (chainmask & (1 << i)) {
val = OS_REG_READ(ah, ar5416_cca_regs[i]);
val &= 0xFFFFFE00;
val |= (((uint32_t)(-50) << 1) & 0x1ff);
OS_REG_WRITE(ah, ar5416_cca_regs[i], val);
}
}
return AH_TRUE;
}
/*
* ar5416SpectralScanCapable
* -------------------------
* Returns the Spectral scan capability
*/
u_int32_t ar5416SpectralScanCapable( struct ath_hal *ah)
{
return (AR_SREV_MERLIN(ah) || AR_SREV_KIWI(ah));
}
static void
ar5416LoadNF(struct ath_hal *ah, const struct ieee80211_channel *chan)
{
static const uint32_t ar5416_cca_regs[] = {
AR_PHY_CCA,
AR_PHY_CH1_CCA,
AR_PHY_CH2_CCA,
AR_PHY_EXT_CCA,
AR_PHY_CH1_EXT_CCA,
AR_PHY_CH2_EXT_CCA
};
struct ar5212NfCalHist *h;
int i, j;
int32_t val;
uint8_t chainmask;
/*
* Force NF calibration for all chains.
*/
if (AR_SREV_KITE(ah)) {
/* Kite has only one chain */
chainmask = 0x9;
} else if (AR_SREV_MERLIN(ah)) {
/* Merlin has only two chains */
chainmask = 0x1B;
} else {
chainmask = 0x3F;
}
/*
* Write filtered NF values into maxCCApwr register parameter
* so we can load below.
*/
h = AH5416(ah)->ah_cal.nfCalHist;
for (i = 0; i < AR5416_NUM_NF_READINGS; i ++)
if (chainmask & (1 << i)) {
val = OS_REG_READ(ah, ar5416_cca_regs[i]);
val &= 0xFFFFFE00;
val |= (((uint32_t)(h[i].privNF) << 1) & 0x1ff);
OS_REG_WRITE(ah, ar5416_cca_regs[i], val);
}
/* Load software filtered NF value into baseband internal minCCApwr variable. */
OS_REG_CLR_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_ENABLE_NF);
OS_REG_CLR_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_NO_UPDATE_NF);
OS_REG_SET_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_NF);
/* Wait for load to complete, should be fast, a few 10s of us. */
for (j = 0; j < 1000; j++) {
if ((OS_REG_READ(ah, AR_PHY_AGC_CONTROL) & AR_PHY_AGC_CONTROL_NF) == 0)
break;
OS_DELAY(10);
}
/*
* Restore maxCCAPower register parameter again so that we're not capped
* by the median we just loaded. This will be initial (and max) value
* of next noise floor calibration the baseband does.
*/
for (i = 0; i < AR5416_NUM_NF_READINGS; i ++)
if (chainmask & (1 << i)) {
val = OS_REG_READ(ah, ar5416_cca_regs[i]);
val &= 0xFFFFFE00;
val |= (((uint32_t)(-50) << 1) & 0x1ff);
OS_REG_WRITE(ah, ar5416_cca_regs[i], val);
}
}
