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);
REG_SET_BIT(ah, AR_DIAG_SW, AR_DIAG_FORCE_CH_IDLE_HIGH);
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 < maxdelay; i++) {
if (i)
udelay(5);
if (!ath9k_hw_numtxpending(ah, q))
break;
}
}
REG_CLR_BIT(ah, AR_PCU_MISC, AR_PCU_FORCE_QUIET_COLL | AR_PCU_CLEAR_VMF);
REG_CLR_BIT(ah, AR_DIAG_SW, AR_DIAG_FORCE_CH_IDLE_HIGH);
REG_CLR_BIT(ah, AR_D_GBL_IFS_MISC, AR_D_GBL_IFS_MISC_IGNORE_BACKOFF);
REG_WRITE(ah, AR_Q_TXD, 0);
}
static u32 ar9003_hw_compute_pll_control(struct ath_hw *ah,
struct ath9k_channel *chan)
{
u32 pll;
pll = SM(0x5, AR_RTC_9300_PLL_REFDIV);
if (chan && IS_CHAN_HALF_RATE(chan))
pll |= SM(0x1, AR_RTC_9300_PLL_CLKSEL);
else if (chan && IS_CHAN_QUARTER_RATE(chan))
pll |= SM(0x2, AR_RTC_9300_PLL_CLKSEL);
pll |= SM(0x2c, AR_RTC_9300_PLL_DIV);
return pll;
}
const HAL_RATE_TABLE *
ar5212GetRateTable(struct ath_hal *ah, u_int mode)
{
HAL_RATE_TABLE *rt;
switch (mode) {
case HAL_MODE_11A:
rt = &ar5212_11a_table;
if (AH_PRIVATE(ah)->ah_curchan) {
if (IS_CHAN_HALF_RATE(AH_PRIVATE(ah)->ah_curchan)) {
rt = &ar5212_11a_half_table;
} else if (IS_CHAN_QUARTER_RATE(
AH_PRIVATE(ah)->ah_curchan)) {
rt = &ar5212_11a_quarter_table;
}
}
break;
case HAL_MODE_11B:
rt = &ar5212_11b_table;
break;
case HAL_MODE_11G:
#ifdef notdef
case HAL_MODE_PUREG:
#endif
rt = &ar5212_11g_table;
break;
case HAL_MODE_TURBO:
rt = &ar5212_turboa_table;
break;
case HAL_MODE_108G:
rt = &ar5212_turbog_table;
break;
case HAL_MODE_XR:
rt = &ar5212_xr_table;
break;
case HAL_MODE_11A_HALF_RATE:
rt = &ar5212_11a_half_table;
break;
case HAL_MODE_11A_QUARTER_RATE:
rt = &ar5212_11a_quarter_table;
break;
default:
HDPRINTF(ah, HAL_DBG_CHANNEL, "%s: invalid mode 0x%x\n", __func__, mode);
return AH_NULL;
}
ath_hal_setupratetable(ah, rt);
return rt;
}
/**
* ar9002_hw_set_channel - set channel on single-chip device
* @ah: atheros hardware structure
* @chan:
*
* This is the function to change channel on single-chip devices, that is
* all devices after ar9280.
*
* This function takes the channel value in MHz and sets
* hardware channel value. Assumes writes have been enabled to analog bus.
*
* Actual Expression,
*
* For 2GHz channel,
* Channel Frequency = (3/4) * freq_ref * (chansel[8:0] + chanfrac[16:0]/2^17)
* (freq_ref = 40MHz)
*
* For 5GHz channel,
* Channel Frequency = (3/2) * freq_ref * (chansel[8:0] + chanfrac[16:0]/2^10)
* (freq_ref = 40MHz/(24>>amodeRefSel))
*/
static int ar9002_hw_set_channel(struct ath_hw *ah, struct ath9k_channel *chan)
{
u16 bMode, fracMode, aModeRefSel = 0;
u32 freq, ndiv, channelSel = 0, channelFrac = 0, reg32 = 0;
struct chan_centers centers;
u32 refDivA = 24;
ath9k_hw_get_channel_centers(ah, chan, ¢ers);
freq = centers.synth_center;
reg32 = REG_READ(ah, AR_PHY_SYNTH_CONTROL);
reg32 &= 0xc0000000;
if (freq < 4800) { /* 2 GHz, fractional mode */
u32 txctl;
int regWrites = 0;
bMode = 1;
fracMode = 1;
aModeRefSel = 0;
channelSel = CHANSEL_2G(freq);
if (AR_SREV_9287_11_OR_LATER(ah)) {
if (freq == 2484) {
/* Enable channel spreading for channel 14 */
REG_WRITE_ARRAY(&ah->iniCckfirJapan2484,
1, regWrites);
} else {
REG_WRITE_ARRAY(&ah->iniCckfirNormal,
1, regWrites);
}
} else {
txctl = REG_READ(ah, AR_PHY_CCK_TX_CTRL);
if (freq == 2484) {
/* Enable channel spreading for channel 14 */
REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
txctl | AR_PHY_CCK_TX_CTRL_JAPAN);
} else {
REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
txctl & ~AR_PHY_CCK_TX_CTRL_JAPAN);
}
}
} else {
bMode = 0;
fracMode = 0;
switch (ah->eep_ops->get_eeprom(ah, EEP_FRAC_N_5G)) {
case 0:
if (IS_CHAN_HALF_RATE(chan) || IS_CHAN_QUARTER_RATE(chan))
aModeRefSel = 0;
else if ((freq % 20) == 0)
aModeRefSel = 3;
else if ((freq % 10) == 0)
aModeRefSel = 2;
if (aModeRefSel)
break;
case 1:
default:
aModeRefSel = 0;
/*
* Enable 2G (fractional) mode for channels
* which are 5MHz spaced.
*/
fracMode = 1;
refDivA = 1;
channelSel = CHANSEL_5G(freq);
/* RefDivA setting */
ath9k_hw_analog_shift_rmw(ah, AR_AN_SYNTH9,
AR_AN_SYNTH9_REFDIVA,
AR_AN_SYNTH9_REFDIVA_S, refDivA);
}
if (!fracMode) {
ndiv = (freq * (refDivA >> aModeRefSel)) / 60;
channelSel = ndiv & 0x1ff;
channelFrac = (ndiv & 0xfffffe00) * 2;
channelSel = (channelSel << 17) | channelFrac;
}
}
/*
* Places the device in and out of reset and then places sane
* values in the registers based on EEPROM config, initialization
* vectors (as determined by the mode), and station configuration
*
* bChannelChange is used to preserve DMA/PCU registers across
* a HW Reset during channel change.
*/
HAL_BOOL
ar5312Reset(struct ath_hal *ah, HAL_OPMODE opmode,
HAL_CHANNEL *chan, HAL_BOOL bChannelChange, HAL_STATUS *status)
{
#define N(a) (sizeof (a) / sizeof (a[0]))
#define FAIL(_code) do { ecode = _code; goto bad; } while (0)
struct ath_hal_5212 *ahp = AH5212(ah);
HAL_CHANNEL_INTERNAL *ichan;
const HAL_EEPROM *ee;
uint32_t saveFrameSeqCount, saveDefAntenna;
uint32_t macStaId1, synthDelay, txFrm2TxDStart;
uint16_t rfXpdGain[MAX_NUM_PDGAINS_PER_CHANNEL];
int16_t cckOfdmPwrDelta = 0;
u_int modesIndex, freqIndex;
HAL_STATUS ecode;
int i, regWrites = 0;
uint32_t testReg;
uint32_t saveLedState = 0;
HALASSERT(ah->ah_magic == AR5212_MAGIC);
ee = AH_PRIVATE(ah)->ah_eeprom;
OS_MARK(ah, AH_MARK_RESET, bChannelChange);
#define IS(_c,_f) (((_c)->channelFlags & _f) || 0)
if ((IS(chan, CHANNEL_2GHZ) ^ IS(chan, CHANNEL_5GHZ)) == 0) {
HALDEBUG(ah, HAL_DEBUG_ANY,
"%s: invalid channel %u/0x%x; not marked as 2GHz or 5GHz\n",
__func__, chan->channel, chan->channelFlags);
FAIL(HAL_EINVAL);
}
if ((IS(chan, CHANNEL_OFDM) ^ IS(chan, CHANNEL_CCK)) == 0) {
HALDEBUG(ah, HAL_DEBUG_ANY,
"%s: invalid channel %u/0x%x; not marked as OFDM or CCK\n",
__func__, chan->channel, chan->channelFlags);
FAIL(HAL_EINVAL);
}
#undef IS
/*
* Map public channel to private.
*/
ichan = ath_hal_checkchannel(ah, chan);
if (ichan == AH_NULL) {
HALDEBUG(ah, HAL_DEBUG_ANY,
"%s: invalid channel %u/0x%x; no mapping\n",
__func__, chan->channel, chan->channelFlags);
FAIL(HAL_EINVAL);
}
switch (opmode) {
case HAL_M_STA:
case HAL_M_IBSS:
case HAL_M_HOSTAP:
case HAL_M_MONITOR:
break;
default:
HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid operating mode %u\n",
__func__, opmode);
FAIL(HAL_EINVAL);
break;
}
HALASSERT(ahp->ah_eeversion >= AR_EEPROM_VER3);
/* Preserve certain DMA hardware registers on a channel change */
if (bChannelChange) {
/*
* On Venice, the TSF is almost preserved across a reset;
* it requires the doubling writes to the RESET_TSF
* bit in the AR_BEACON register; it also has the quirk
* of the TSF going back in time on the station (station
* latches onto the last beacon's tsf during a reset 50%
* of the times); the latter is not a problem for adhoc
* stations since as long as the TSF is behind, it will
* get resynchronized on receiving the next beacon; the
* TSF going backwards in time could be a problem for the
* sleep operation (supported on infrastructure stations
* only) - the best and most general fix for this situation
* is to resynchronize the various sleep/beacon timers on
* the receipt of the next beacon i.e. when the TSF itself
* gets resynchronized to the AP's TSF - power save is
* needed to be temporarily disabled until that time
*
* Need to save the sequence number to restore it after
* the reset!
*/
saveFrameSeqCount = OS_REG_READ(ah, AR_D_SEQNUM);
} else
saveFrameSeqCount = 0; /* NB: silence compiler */
/* If the channel change is across the same mode - perform a fast channel change */
if ((IS_2413(ah) || IS_5413(ah))) {
/*
* Channel change can only be used when:
* -channel change requested - so it's not the initial reset.
* -it's not a change to the current channel - often called when switching modes
* on a channel
* -the modes of the previous and requested channel are the same - some ugly code for XR
*/
if (bChannelChange &&
(AH_PRIVATE(ah)->ah_curchan != AH_NULL) &&
(chan->channel != AH_PRIVATE(ah)->ah_curchan->channel) &&
((chan->channelFlags & CHANNEL_ALL) ==
(AH_PRIVATE(ah)->ah_curchan->channelFlags & CHANNEL_ALL))) {
if (ar5212ChannelChange(ah, chan))
/* If ChannelChange completed - skip the rest of reset */
return AH_TRUE;
}
}
/*
* Preserve the antenna on a channel change
*/
saveDefAntenna = OS_REG_READ(ah, AR_DEF_ANTENNA);
if (saveDefAntenna == 0) /* XXX magic constants */
saveDefAntenna = 1;
/* Save hardware flag before chip reset clears the register */
macStaId1 = OS_REG_READ(ah, AR_STA_ID1) &
(AR_STA_ID1_BASE_RATE_11B | AR_STA_ID1_USE_DEFANT);
/* Save led state from pci config register */
if (!IS_5315(ah))
saveLedState = OS_REG_READ(ah, AR5312_PCICFG) &
(AR_PCICFG_LEDCTL | AR_PCICFG_LEDMODE | AR_PCICFG_LEDBLINK |
AR_PCICFG_LEDSLOW);
ar5312RestoreClock(ah, opmode); /* move to refclk operation */
/*
* Adjust gain parameters before reset if
* there's an outstanding gain updated.
*/
(void) ar5212GetRfgain(ah);
if (!ar5312ChipReset(ah, chan)) {
HALDEBUG(ah, HAL_DEBUG_ANY, "%s: chip reset failed\n", __func__);
FAIL(HAL_EIO);
}
/* Setup the indices for the next set of register array writes */
switch (chan->channelFlags & CHANNEL_ALL) {
case CHANNEL_A:
modesIndex = 1;
freqIndex = 1;
break;
case CHANNEL_T:
modesIndex = 2;
freqIndex = 1;
break;
case CHANNEL_B:
modesIndex = 3;
freqIndex = 2;
break;
case CHANNEL_PUREG:
modesIndex = 4;
freqIndex = 2;
break;
case CHANNEL_108G:
modesIndex = 5;
freqIndex = 2;
break;
default:
HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel flags 0x%x\n",
__func__, chan->channelFlags);
FAIL(HAL_EINVAL);
}
OS_MARK(ah, AH_MARK_RESET_LINE, __LINE__);
/* Set correct Baseband to analog shift setting to access analog chips. */
OS_REG_WRITE(ah, AR_PHY(0), 0x00000007);
regWrites = ath_hal_ini_write(ah, &ahp->ah_ini_modes, modesIndex, 0);
regWrites = write_common(ah, &ahp->ah_ini_common, bChannelChange,
regWrites);
ahp->ah_rfHal->writeRegs(ah, modesIndex, freqIndex, regWrites);
OS_MARK(ah, AH_MARK_RESET_LINE, __LINE__);
if (IS_CHAN_HALF_RATE(chan) || IS_CHAN_QUARTER_RATE(chan)) {
ar5212SetIFSTiming(ah, chan);
}
/* Overwrite INI values for revised chipsets */
if (AH_PRIVATE(ah)->ah_phyRev >= AR_PHY_CHIP_ID_REV_2) {
/* ADC_CTL */
OS_REG_WRITE(ah, AR_PHY_ADC_CTL,
SM(2, AR_PHY_ADC_CTL_OFF_INBUFGAIN) |
SM(2, AR_PHY_ADC_CTL_ON_INBUFGAIN) |
AR_PHY_ADC_CTL_OFF_PWDDAC |
AR_PHY_ADC_CTL_OFF_PWDADC);
/* TX_PWR_ADJ */
if (chan->channel == 2484) {
cckOfdmPwrDelta = SCALE_OC_DELTA(ee->ee_cckOfdmPwrDelta - ee->ee_scaledCh14FilterCckDelta);
} else {
cckOfdmPwrDelta = SCALE_OC_DELTA(ee->ee_cckOfdmPwrDelta);
}
if (IS_CHAN_G(chan)) {
OS_REG_WRITE(ah, AR_PHY_TXPWRADJ,
SM((ee->ee_cckOfdmPwrDelta*-1), AR_PHY_TXPWRADJ_CCK_GAIN_DELTA) |
SM((cckOfdmPwrDelta*-1), AR_PHY_TXPWRADJ_CCK_PCDAC_INDEX));
} else {
OS_REG_WRITE(ah, AR_PHY_TXPWRADJ, 0);
}
/* Add barker RSSI thresh enable as disabled */
OS_REG_CLR_BIT(ah, AR_PHY_DAG_CTRLCCK,
AR_PHY_DAG_CTRLCCK_EN_RSSI_THR);
OS_REG_RMW_FIELD(ah, AR_PHY_DAG_CTRLCCK,
AR_PHY_DAG_CTRLCCK_RSSI_THR, 2);
/* Set the mute mask to the correct default */
OS_REG_WRITE(ah, AR_SEQ_MASK, 0x0000000F);
}
if (AH_PRIVATE(ah)->ah_phyRev >= AR_PHY_CHIP_ID_REV_3) {
/* Clear reg to alllow RX_CLEAR line debug */
OS_REG_WRITE(ah, AR_PHY_BLUETOOTH, 0);
}
if (AH_PRIVATE(ah)->ah_phyRev >= AR_PHY_CHIP_ID_REV_4) {
#ifdef notyet
/* Enable burst prefetch for the data queues */
OS_REG_RMW_FIELD(ah, AR_D_FPCTL, ... );
/* Enable double-buffering */
OS_REG_CLR_BIT(ah, AR_TXCFG, AR_TXCFG_DBL_BUF_DIS);
#endif
}
if (IS_5312_2_X(ah)) {
/* ADC_CTRL */
OS_REG_WRITE(ah, AR_PHY_SIGMA_DELTA,
SM(2, AR_PHY_SIGMA_DELTA_ADC_SEL) |
SM(4, AR_PHY_SIGMA_DELTA_FILT2) |
SM(0x16, AR_PHY_SIGMA_DELTA_FILT1) |
SM(0, AR_PHY_SIGMA_DELTA_ADC_CLIP));
if (IS_CHAN_2GHZ(chan))
OS_REG_RMW_FIELD(ah, AR_PHY_RXGAIN, AR_PHY_RXGAIN_TXRX_RF_MAX, 0x0F);
/* CCK Short parameter adjustment in 11B mode */
if (IS_CHAN_B(chan))
OS_REG_RMW_FIELD(ah, AR_PHY_CCK_RXCTRL4, AR_PHY_CCK_RXCTRL4_FREQ_EST_SHORT, 12);
/* Set ADC/DAC select values */
OS_REG_WRITE(ah, AR_PHY_SLEEP_SCAL, 0x04);
/* Increase 11A AGC Settling */
if ((chan->channelFlags & CHANNEL_ALL) == CHANNEL_A)
OS_REG_RMW_FIELD(ah, AR_PHY_SETTLING, AR_PHY_SETTLING_AGC, 32);
} else {
/* Set ADC/DAC select values */
OS_REG_WRITE(ah, AR_PHY_SLEEP_SCAL, 0x0e);
}
/* Setup the transmit power values. */
if (!ar5212SetTransmitPower(ah, ichan, rfXpdGain)) {
HALDEBUG(ah, HAL_DEBUG_ANY,
"%s: error init'ing transmit power\n", __func__);
FAIL(HAL_EIO);
}
/* Write the analog registers */
if (!ahp->ah_rfHal->setRfRegs(ah, ichan, modesIndex, rfXpdGain)) {
HALDEBUG(ah, HAL_DEBUG_ANY, "%s: ar5212SetRfRegs failed\n",
__func__);
FAIL(HAL_EIO);
}
/* Write delta slope for OFDM enabled modes (A, G, Turbo) */
if (IS_CHAN_OFDM(chan)) {
if ((IS_5413(ah) || (AH_PRIVATE(ah)->ah_eeversion >= AR_EEPROM_VER5_3)) &&
(!IS_CHAN_B(chan)))
ar5212SetSpurMitigation(ah, ichan);
ar5212SetDeltaSlope(ah, chan);
}
/* Setup board specific options for EEPROM version 3 */
if (!ar5212SetBoardValues(ah, ichan)) {
HALDEBUG(ah, HAL_DEBUG_ANY,
"%s: error setting board options\n", __func__);
FAIL(HAL_EIO);
}
/* Restore certain DMA hardware registers on a channel change */
if (bChannelChange)
OS_REG_WRITE(ah, AR_D_SEQNUM, saveFrameSeqCount);
OS_MARK(ah, AH_MARK_RESET_LINE, __LINE__);
OS_REG_WRITE(ah, AR_STA_ID0, LE_READ_4(ahp->ah_macaddr));
OS_REG_WRITE(ah, AR_STA_ID1, LE_READ_2(ahp->ah_macaddr + 4)
| macStaId1
| AR_STA_ID1_RTS_USE_DEF
| ahp->ah_staId1Defaults
);
ar5212SetOperatingMode(ah, opmode);
/* Set Venice BSSID mask according to current state */
OS_REG_WRITE(ah, AR_BSSMSKL, LE_READ_4(ahp->ah_bssidmask));
OS_REG_WRITE(ah, AR_BSSMSKU, LE_READ_2(ahp->ah_bssidmask + 4));
/* Restore previous led state */
if (!IS_5315(ah))
OS_REG_WRITE(ah, AR5312_PCICFG, OS_REG_READ(ah, AR_PCICFG) | saveLedState);
/* Restore previous antenna */
OS_REG_WRITE(ah, AR_DEF_ANTENNA, saveDefAntenna);
/* then our BSSID */
OS_REG_WRITE(ah, AR_BSS_ID0, LE_READ_4(ahp->ah_bssid));
OS_REG_WRITE(ah, AR_BSS_ID1, LE_READ_2(ahp->ah_bssid + 4));
/* Restore bmiss rssi & count thresholds */
OS_REG_WRITE(ah, AR_RSSI_THR, ahp->ah_rssiThr);
OS_REG_WRITE(ah, AR_ISR, ~0); /* cleared on write */
if (!ar5212SetChannel(ah, ichan))
FAIL(HAL_EIO);
OS_MARK(ah, AH_MARK_RESET_LINE, __LINE__);
ar5212SetCoverageClass(ah, AH_PRIVATE(ah)->ah_coverageClass, 1);
ar5212SetRateDurationTable(ah, chan);
/* Set Tx frame start to tx data start delay */
if (IS_RAD5112_ANY(ah) &&
(IS_CHAN_HALF_RATE(AH_PRIVATE(ah)->ah_curchan) ||
IS_CHAN_QUARTER_RATE(AH_PRIVATE(ah)->ah_curchan))) {
txFrm2TxDStart =
(IS_CHAN_HALF_RATE(AH_PRIVATE(ah)->ah_curchan)) ?
TX_FRAME_D_START_HALF_RATE:
TX_FRAME_D_START_QUARTER_RATE;
OS_REG_RMW_FIELD(ah, AR_PHY_TX_CTL,
AR_PHY_TX_FRAME_TO_TX_DATA_START, txFrm2TxDStart);
}
/*
* Setup fast diversity.
* Fast diversity can be enabled or disabled via regadd.txt.
* Default is enabled.
* For reference,
* Disable: reg val
* 0x00009860 0x00009d18 (if 11a / 11g, else no change)
* 0x00009970 0x192bb514
* 0x0000a208 0xd03e4648
*
* Enable: 0x00009860 0x00009d10 (if 11a / 11g, else no change)
* 0x00009970 0x192fb514
* 0x0000a208 0xd03e6788
*/
/* XXX Setup pre PHY ENABLE EAR additions */
/* flush SCAL reg */
if (IS_5312_2_X(ah)) {
(void) OS_REG_READ(ah, AR_PHY_SLEEP_SCAL);
}
/*
* Wait for the frequency synth to settle (synth goes on
* via AR_PHY_ACTIVE_EN). Read the phy active delay register.
* Value is in 100ns increments.
*/
synthDelay = OS_REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
if (IS_CHAN_CCK(chan)) {
synthDelay = (4 * synthDelay) / 22;
} else {
synthDelay /= 10;
}
/* Activate the PHY (includes baseband activate and synthesizer on) */
OS_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.
*/
if (IS_CHAN_HALF_RATE(AH_PRIVATE(ah)->ah_curchan)) {
OS_DELAY((synthDelay << 1) + BASE_ACTIVATE_DELAY);
} else if (IS_CHAN_QUARTER_RATE(AH_PRIVATE(ah)->ah_curchan)) {
OS_DELAY((synthDelay << 2) + BASE_ACTIVATE_DELAY);
} else {
OS_DELAY(synthDelay + BASE_ACTIVATE_DELAY);
}
/*
* The udelay method is not reliable with notebooks.
* Need to check to see if the baseband is ready
*/
testReg = OS_REG_READ(ah, AR_PHY_TESTCTRL);
/* Selects the Tx hold */
OS_REG_WRITE(ah, AR_PHY_TESTCTRL, AR_PHY_TESTCTRL_TXHOLD);
i = 0;
while ((i++ < 20) &&
(OS_REG_READ(ah, 0x9c24) & 0x10)) /* test if baseband not ready */ OS_DELAY(200);
OS_REG_WRITE(ah, AR_PHY_TESTCTRL, testReg);
/* Calibrate the AGC and start a NF calculation */
OS_REG_WRITE(ah, AR_PHY_AGC_CONTROL,
OS_REG_READ(ah, AR_PHY_AGC_CONTROL)
| AR_PHY_AGC_CONTROL_CAL
| AR_PHY_AGC_CONTROL_NF);
if (!IS_CHAN_B(chan) && ahp->ah_bIQCalibration != IQ_CAL_DONE) {
/* Start IQ calibration w/ 2^(INIT_IQCAL_LOG_COUNT_MAX+1) samples */
OS_REG_RMW_FIELD(ah, AR_PHY_TIMING_CTRL4,
AR_PHY_TIMING_CTRL4_IQCAL_LOG_COUNT_MAX,
INIT_IQCAL_LOG_COUNT_MAX);
OS_REG_SET_BIT(ah, AR_PHY_TIMING_CTRL4,
AR_PHY_TIMING_CTRL4_DO_IQCAL);
ahp->ah_bIQCalibration = IQ_CAL_RUNNING;
} else
ahp->ah_bIQCalibration = IQ_CAL_INACTIVE;
/* Setup compression registers */
ar5212SetCompRegs(ah);
/* Set 1:1 QCU to DCU mapping for all queues */
for (i = 0; i < AR_NUM_DCU; i++)
OS_REG_WRITE(ah, AR_DQCUMASK(i), 1 << i);
ahp->ah_intrTxqs = 0;
for (i = 0; i < AH_PRIVATE(ah)->ah_caps.halTotalQueues; i++)
ar5212ResetTxQueue(ah, i);
/*
* Setup interrupt handling. Note that ar5212ResetTxQueue
* manipulates the secondary IMR's as queues are enabled
* and disabled. This is done with RMW ops to insure the
* settings we make here are preserved.
*/
ahp->ah_maskReg = AR_IMR_TXOK | AR_IMR_TXERR | AR_IMR_TXURN
| AR_IMR_RXOK | AR_IMR_RXERR | AR_IMR_RXORN
| AR_IMR_HIUERR
;
if (opmode == HAL_M_HOSTAP)
ahp->ah_maskReg |= AR_IMR_MIB;
OS_REG_WRITE(ah, AR_IMR, ahp->ah_maskReg);
/* Enable bus errors that are OR'd to set the HIUERR bit */
OS_REG_WRITE(ah, AR_IMR_S2,
OS_REG_READ(ah, AR_IMR_S2)
| AR_IMR_S2_MCABT | AR_IMR_S2_SSERR | AR_IMR_S2_DPERR);
if (AH_PRIVATE(ah)->ah_rfkillEnabled)
ar5212EnableRfKill(ah);
if (!ath_hal_wait(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_CAL, 0)) {
HALDEBUG(ah, HAL_DEBUG_ANY,
"%s: offset calibration failed to complete in 1ms;"
" noisy environment?\n", __func__);
}
/*
* Set clocks back to 32kHz if they had been using refClk, then
* use an external 32kHz crystal when sleeping, if one exists.
*/
ar5312SetupClock(ah, opmode);
/*
* Writing to AR_BEACON will start timers. Hence it should
* be the last register to be written. Do not reset tsf, do
* not enable beacons at this point, but preserve other values
* like beaconInterval.
*/
OS_REG_WRITE(ah, AR_BEACON,
(OS_REG_READ(ah, AR_BEACON) &~ (AR_BEACON_EN | AR_BEACON_RESET_TSF)));
/* XXX Setup post reset EAR additions */
/* QoS support */
if (AH_PRIVATE(ah)->ah_macVersion > AR_SREV_VERSION_VENICE ||
(AH_PRIVATE(ah)->ah_macVersion == AR_SREV_VERSION_VENICE &&
AH_PRIVATE(ah)->ah_macRev >= AR_SREV_GRIFFIN_LITE)) {
OS_REG_WRITE(ah, AR_QOS_CONTROL, 0x100aa); /* XXX magic */
OS_REG_WRITE(ah, AR_QOS_SELECT, 0x3210); /* XXX magic */
}
/* Turn on NOACK Support for QoS packets */
OS_REG_WRITE(ah, AR_NOACK,
SM(2, AR_NOACK_2BIT_VALUE) |
SM(5, AR_NOACK_BIT_OFFSET) |
SM(0, AR_NOACK_BYTE_OFFSET));
/* Restore user-specified settings */
if (ahp->ah_miscMode != 0)
OS_REG_WRITE(ah, AR_MISC_MODE, ahp->ah_miscMode);
if (ahp->ah_slottime != (u_int) -1)
ar5212SetSlotTime(ah, ahp->ah_slottime);
if (ahp->ah_acktimeout != (u_int) -1)
ar5212SetAckTimeout(ah, ahp->ah_acktimeout);
if (ahp->ah_ctstimeout != (u_int) -1)
ar5212SetCTSTimeout(ah, ahp->ah_ctstimeout);
if (ahp->ah_sifstime != (u_int) -1)
ar5212SetSifsTime(ah, ahp->ah_sifstime);
if (AH_PRIVATE(ah)->ah_diagreg != 0)
OS_REG_WRITE(ah, AR_DIAG_SW, AH_PRIVATE(ah)->ah_diagreg);
AH_PRIVATE(ah)->ah_opmode = opmode; /* record operating mode */
if (bChannelChange) {
if (!(ichan->privFlags & CHANNEL_DFS))
ichan->privFlags &= ~CHANNEL_INTERFERENCE;
chan->channelFlags = ichan->channelFlags;
chan->privFlags = ichan->privFlags;
}
HALDEBUG(ah, HAL_DEBUG_RESET, "%s: done\n", __func__);
OS_MARK(ah, AH_MARK_RESET_DONE, 0);
return AH_TRUE;
bad:
OS_MARK(ah, AH_MARK_RESET_DONE, ecode);
if (*status)
*status = ecode;
return AH_FALSE;
#undef FAIL
#undef N
}
/*
* Places the hardware into reset and then pulls it out of reset
*
* TODO: Only write the PLL if we're changing to or from CCK mode
*
* WARNING: The order of the PLL and mode registers must be correct.
*/
HAL_BOOL
ar5312ChipReset(struct ath_hal *ah, HAL_CHANNEL *chan)
{
OS_MARK(ah, AH_MARK_CHIPRESET, chan ? chan->channel : 0);
/*
* Reset the HW
*/
if (!ar5312SetResetReg(ah, AR_RC_MAC | AR_RC_BB)) {
HALDEBUG(ah, HAL_DEBUG_ANY, "%s: ar5312SetResetReg failed\n",
__func__);
return AH_FALSE;
}
/* Bring out of sleep mode (AGAIN) */
if (!ar5312SetPowerMode(ah, HAL_PM_AWAKE, AH_TRUE)) {
HALDEBUG(ah, HAL_DEBUG_ANY, "%s: ar5312SetPowerMode failed\n",
__func__);
return AH_FALSE;
}
/* Clear warm reset register */
if (!ar5312SetResetReg(ah, 0)) {
HALDEBUG(ah, HAL_DEBUG_ANY, "%s: ar5312SetResetReg failed\n",
__func__);
return AH_FALSE;
}
/*
* Perform warm reset before the mode/PLL/turbo registers
* are changed in order to deactivate the radio. Mode changes
* with an active radio can result in corrupted shifts to the
* radio device.
*/
/*
* Set CCK and Turbo modes correctly.
*/
if (chan != AH_NULL) { /* NB: can be null during attach */
uint32_t rfMode, phyPLL = 0, curPhyPLL, turbo;
if (IS_RAD5112_ANY(ah)) {
rfMode = AR_PHY_MODE_AR5112;
if (!IS_5315(ah)) {
if (IS_CHAN_CCK(chan) || IS_CHAN_G(chan)) {
phyPLL = AR_PHY_PLL_CTL_44_5312;
} else {
if (IS_CHAN_HALF_RATE(chan)) {
phyPLL = AR_PHY_PLL_CTL_40_5312_HALF;
} else if (IS_CHAN_QUARTER_RATE(chan)) {
phyPLL = AR_PHY_PLL_CTL_40_5312_QUARTER;
} else {
phyPLL = AR_PHY_PLL_CTL_40_5312;
}
}
} else {
if (IS_CHAN_CCK(chan) || IS_CHAN_G(chan))
phyPLL = AR_PHY_PLL_CTL_44_5112;
else
phyPLL = AR_PHY_PLL_CTL_40_5112;
if (IS_CHAN_HALF_RATE(chan))
phyPLL |= AR_PHY_PLL_CTL_HALF;
else if (IS_CHAN_QUARTER_RATE(chan))
phyPLL |= AR_PHY_PLL_CTL_QUARTER;
}
} else {
rfMode = AR_PHY_MODE_AR5111;
if (IS_CHAN_CCK(chan) || IS_CHAN_G(chan))
phyPLL = AR_PHY_PLL_CTL_44;
else
phyPLL = AR_PHY_PLL_CTL_40;
if (IS_CHAN_HALF_RATE(chan))
phyPLL = AR_PHY_PLL_CTL_HALF;
else if (IS_CHAN_QUARTER_RATE(chan))
phyPLL = AR_PHY_PLL_CTL_QUARTER;
}
if (IS_CHAN_OFDM(chan) && (IS_CHAN_CCK(chan) ||
IS_CHAN_G(chan)))
rfMode |= AR_PHY_MODE_DYNAMIC;
else if (IS_CHAN_OFDM(chan))
rfMode |= AR_PHY_MODE_OFDM;
else
rfMode |= AR_PHY_MODE_CCK;
if (IS_CHAN_5GHZ(chan))
rfMode |= AR_PHY_MODE_RF5GHZ;
else
rfMode |= AR_PHY_MODE_RF2GHZ;
turbo = IS_CHAN_TURBO(chan) ?
(AR_PHY_FC_TURBO_MODE | AR_PHY_FC_TURBO_SHORT) : 0;
curPhyPLL = OS_REG_READ(ah, AR_PHY_PLL_CTL);
/*
* PLL, Mode, and Turbo values must be written in the correct
* order to ensure:
* - The PLL cannot be set to 44 unless the CCK or DYNAMIC
* mode bit is set
* - Turbo cannot be set at the same time as CCK or DYNAMIC
*/
if (IS_CHAN_CCK(chan) || IS_CHAN_G(chan)) {
OS_REG_WRITE(ah, AR_PHY_TURBO, turbo);
OS_REG_WRITE(ah, AR_PHY_MODE, rfMode);
if (curPhyPLL != phyPLL) {
OS_REG_WRITE(ah, AR_PHY_PLL_CTL, phyPLL);
/* Wait for the PLL to settle */
OS_DELAY(PLL_SETTLE_DELAY);
}
} else {
if (curPhyPLL != phyPLL) {
OS_REG_WRITE(ah, AR_PHY_PLL_CTL, phyPLL);
/* Wait for the PLL to settle */
OS_DELAY(PLL_SETTLE_DELAY);
}
OS_REG_WRITE(ah, AR_PHY_TURBO, turbo);
OS_REG_WRITE(ah, AR_PHY_MODE, rfMode);
}
}
return AH_TRUE;
}
/*
* Reads EEPROM header info from device structure and programs
* all rf registers
*
* REQUIRES: Access to the analog rf device
*/
static HAL_BOOL
ar5111SetRfRegs(struct ath_hal *ah, HAL_CHANNEL_INTERNAL *chan,
u_int16_t modesIndex, u_int16_t *rfXpdGain)
{
struct ath_hal_5212 *ahp = AH5212(ah);
u_int16_t rfXpdGainFixed, rfPloSel, rfPwdXpd, gainI;
u_int16_t tempOB, tempDB;
u_int32_t ob2GHz, db2GHz, rfReg[N(ar5212Bank6_5111)];
int i, regWrites = 0;
/* Setup rf parameters */
switch (chan->channelFlags & CHANNEL_ALL) {
case CHANNEL_A:
case CHANNEL_T:
if (4000 < chan->channel && chan->channel < 5260) {
tempOB = ahp->ah_ob1;
tempDB = ahp->ah_db1;
} else if (5260 <= chan->channel && chan->channel < 5500) {
tempOB = ahp->ah_ob2;
tempDB = ahp->ah_db2;
} else if (5500 <= chan->channel && chan->channel < 5725) {
tempOB = ahp->ah_ob3;
tempDB = ahp->ah_db3;
} else if (chan->channel >= 5725) {
tempOB = ahp->ah_ob4;
tempDB = ahp->ah_db4;
} else {
/* XXX when does this happen??? */
tempOB = tempDB = 0;
}
ob2GHz = db2GHz = 0;
rfXpdGainFixed = ahp->ah_xgain[headerInfo11A];
rfPloSel = ahp->ah_xpd[headerInfo11A];
rfPwdXpd = !ahp->ah_xpd[headerInfo11A];
gainI = ahp->ah_gainI[headerInfo11A];
break;
case CHANNEL_B:
tempOB = ahp->ah_obFor24;
tempDB = ahp->ah_dbFor24;
ob2GHz = ahp->ah_ob2GHz[0];
db2GHz = ahp->ah_db2GHz[0];
rfXpdGainFixed = ahp->ah_xgain[headerInfo11B];
rfPloSel = ahp->ah_xpd[headerInfo11B];
rfPwdXpd = !ahp->ah_xpd[headerInfo11B];
gainI = ahp->ah_gainI[headerInfo11B];
break;
case CHANNEL_G:
tempOB = ahp->ah_obFor24g;
tempDB = ahp->ah_dbFor24g;
ob2GHz = ahp->ah_ob2GHz[1];
db2GHz = ahp->ah_db2GHz[1];
rfXpdGainFixed = ahp->ah_xgain[headerInfo11G];
rfPloSel = ahp->ah_xpd[headerInfo11G];
rfPwdXpd = !ahp->ah_xpd[headerInfo11G];
gainI = ahp->ah_gainI[headerInfo11G];
break;
default:
HDPRINTF(ah, HAL_DBG_CHANNEL, "%s: invalid channel flags 0x%x\n",
__func__, chan->channelFlags);
return AH_FALSE;
}
HALASSERT(1 <= tempOB && tempOB <= 5);
HALASSERT(1 <= tempDB && tempDB <= 5);
/* Bank 0 Write */
for (i = 0; i < N(ar5212Bank0_5111); i++)
rfReg[i] = ar5212Bank0_5111[i][modesIndex];
if (IS_CHAN_2GHZ(chan)) {
ar5212ModifyRfBuffer(rfReg, ob2GHz, 3, 119, 0);
ar5212ModifyRfBuffer(rfReg, db2GHz, 3, 122, 0);
}
for (i = 0; i < N(ar5212Bank0_5111); i++) {
OS_REG_WRITE(ah, ar5212Bank0_5111[i][0], rfReg[i]);
ALLOW_DMA_READ_COMPLETE(regWrites);
}
/* Bank 1 Write */
REG_WRITE_ARRAY(ar5212Bank1_5111, 1, regWrites);
/* Bank 2 Write */
REG_WRITE_ARRAY(ar5212Bank2_5111, modesIndex, regWrites);
/* Bank 3 Write */
REG_WRITE_ARRAY(ar5212Bank3_5111, modesIndex, regWrites);
/* Bank 6 Write */
for (i = 0; i < N(ar5212Bank6_5111); i++)
rfReg[i] = ar5212Bank6_5111[i][modesIndex];
if (IS_CHAN_A(chan)) { /* NB: CHANNEL_A | CHANNEL_T */
ar5212ModifyRfBuffer(rfReg, ahp->ah_cornerCal.pd84, 1, 51, 3);
ar5212ModifyRfBuffer(rfReg, ahp->ah_cornerCal.pd90, 1, 45, 3);
}
ar5212ModifyRfBuffer(rfReg, rfPwdXpd, 1, 95, 0);
ar5212ModifyRfBuffer(rfReg, rfXpdGainFixed, 4, 96, 0);
/* Set 5212 OB & DB */
ar5212ModifyRfBuffer(rfReg, tempOB, 3, 104, 0);
ar5212ModifyRfBuffer(rfReg, tempDB, 3, 107, 0);
for (i = 0; i < N(ar5212Bank6_5111); i++) {
OS_REG_WRITE(ah, ar5212Bank6_5111[i][0], rfReg[i]);
ALLOW_DMA_READ_COMPLETE(regWrites);
}
/* Bank 7 Write */
for (i = 0; i < N(ar5212Bank7_5111); i++)
rfReg[i] = ar5212Bank7_5111[i][modesIndex];
ar5212ModifyRfBuffer(rfReg, gainI, 6, 29, 0);
ar5212ModifyRfBuffer(rfReg, rfPloSel, 1, 4, 0);
if (IS_CHAN_QUARTER_RATE(chan) || IS_CHAN_HALF_RATE(chan)) {
u_int32_t rfWaitI, rfWaitS, rfMaxTime;
rfWaitS = 0x1f;
rfWaitI = (IS_CHAN_HALF_RATE(chan)) ? 0x10 : 0x1f;
rfMaxTime = 3;
ar5212ModifyRfBuffer(rfReg, rfWaitS, 5, 19, 0);
ar5212ModifyRfBuffer(rfReg, rfWaitI, 5, 24, 0);
ar5212ModifyRfBuffer(rfReg, rfMaxTime, 2, 49, 0);
}
for (i = 0; i < N(ar5212Bank7_5111); i++) {
OS_REG_WRITE(ah, ar5212Bank7_5111[i][0], rfReg[i]);
ALLOW_DMA_READ_COMPLETE(regWrites);
}
/* Now that we have reprogrammed rfgain value, clear the flag. */
ahp->ah_rfgainState = HAL_RFGAIN_INACTIVE;
return AH_TRUE;
}
