void
ar9280olcGetTxGainIndex(struct ath_hal *ah,
const struct ieee80211_channel *chan,
struct calDataPerFreqOpLoop *rawDatasetOpLoop,
uint8_t *calChans, uint16_t availPiers, uint8_t *pwr, uint8_t *pcdacIdx)
{
uint8_t pcdac, i = 0;
uint16_t idxL = 0, idxR = 0, numPiers;
HAL_BOOL match;
CHAN_CENTERS centers;
ar5416GetChannelCenters(ah, chan, ¢ers);
for (numPiers = 0; numPiers < availPiers; numPiers++)
if (calChans[numPiers] == AR5416_BCHAN_UNUSED)
break;
match = ath_ee_getLowerUpperIndex((uint8_t)FREQ2FBIN(centers.synth_center,
IEEE80211_IS_CHAN_2GHZ(chan)), calChans, numPiers,
&idxL, &idxR);
if (match) {
pcdac = rawDatasetOpLoop[idxL].pcdac[0][0];
*pwr = rawDatasetOpLoop[idxL].pwrPdg[0][0];
} else {
pcdac = rawDatasetOpLoop[idxR].pcdac[0][0];
*pwr = (rawDatasetOpLoop[idxL].pwrPdg[0][0] +
rawDatasetOpLoop[idxR].pwrPdg[0][0])/2;
}
while (pcdac > AH9280(ah)->originalGain[i] &&
i < (AR9280_TX_GAIN_TABLE_SIZE - 1))
i++;
*pcdacIdx = i;
}
void
ar9287olcGetTxGainIndex(struct ath_hal *ah,
const struct ieee80211_channel *chan,
struct cal_data_op_loop_ar9287 *pRawDatasetOpLoop,
uint8_t *pCalChans, uint16_t availPiers, int8_t *pPwr)
{
uint16_t idxL = 0, idxR = 0, numPiers;
HAL_BOOL match;
CHAN_CENTERS centers;
ar5416GetChannelCenters(ah, chan, ¢ers);
for (numPiers = 0; numPiers < availPiers; numPiers++) {
if (pCalChans[numPiers] == AR5416_BCHAN_UNUSED)
break;
}
match = ath_ee_getLowerUpperIndex(
(uint8_t)FREQ2FBIN(centers.synth_center, IEEE80211_IS_CHAN_2GHZ(chan)),
pCalChans, numPiers, &idxL, &idxR);
if (match) {
*pPwr = (int8_t) pRawDatasetOpLoop[idxL].pwrPdg[0][0];
} else {
*pPwr = ((int8_t) pRawDatasetOpLoop[idxL].pwrPdg[0][0] +
(int8_t) pRawDatasetOpLoop[idxR].pwrPdg[0][0])/2;
}
}
/*
* Take the MHz channel value and set the Channel value
*
* ASSUMES: Writes 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))
*
* For 5GHz channels which are 5MHz spaced,
* Channel Frequency = (3/2) * freq_ref * (chansel[8:0] + chanfrac[16:0]/2^17)
* (freq_ref = 40MHz)
*/
static HAL_BOOL
ar9280SetChannel(struct ath_hal *ah, const struct ieee80211_channel *chan)
{
uint16_t bMode, fracMode, aModeRefSel = 0;
uint32_t freq, ndiv, channelSel = 0, channelFrac = 0, reg32 = 0;
CHAN_CENTERS centers;
uint32_t refDivA = 24;
OS_MARK(ah, AH_MARK_SETCHANNEL, chan->ic_freq);
ar5416GetChannelCenters(ah, chan, ¢ers);
freq = centers.synth_center;
reg32 = OS_REG_READ(ah, AR_PHY_SYNTH_CONTROL);
reg32 &= 0xc0000000;
if (freq < 4800) { /* 2 GHz, fractional mode */
uint32_t txctl;
bMode = 1;
fracMode = 1;
aModeRefSel = 0;
channelSel = (freq * 0x10000)/15;
txctl = OS_REG_READ(ah, AR_PHY_CCK_TX_CTRL);
if (freq == 2484) {
/* Enable channel spreading for channel 14 */
OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
txctl | AR_PHY_CCK_TX_CTRL_JAPAN);
} else {
OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
txctl &~ AR_PHY_CCK_TX_CTRL_JAPAN);
}
} else {
bMode = 0;
fracMode = 0;
if ((freq % 20) == 0) {
aModeRefSel = 3;
} else if ((freq % 10) == 0) {
aModeRefSel = 2;
} else {
aModeRefSel = 0;
/* Enable 2G (fractional) mode for channels which are 5MHz spaced */
fracMode = 1;
refDivA = 1;
channelSel = (freq * 0x8000)/15;
/* RefDivA setting */
OS_REG_RMW_FIELD(ah, AR_AN_SYNTH9,
AR_AN_SYNTH9_REFDIVA, refDivA);
}
if (!fracMode) {
ndiv = (freq * (refDivA >> aModeRefSel))/60;
channelSel = ndiv & 0x1ff;
channelFrac = (ndiv & 0xfffffe00) * 2;
channelSel = (channelSel << 17) | channelFrac;
}
}
static HAL_BOOL
ar2133SetChannel(struct ath_hal *ah, HAL_CHANNEL_INTERNAL *chan)
{
u_int32_t channelSel = 0;
u_int32_t bModeSynth = 0;
u_int32_t aModeRefSel = 0;
u_int32_t reg32 = 0;
u_int16_t freq;
CHAN_CENTERS centers;
OS_MARK(ah, AH_MARK_SETCHANNEL, chan->channel);
ar5416GetChannelCenters(ah, chan, ¢ers);
freq = centers.synth_center;
if (freq < 4800) {
u_int32_t txctl;
if (((freq - 2192) % 5) == 0) {
channelSel = ((freq - 672) * 2 - 3040)/10;
bModeSynth = 0;
} else if (((freq - 2224) % 5) == 0) {
channelSel = ((freq - 704) * 2 - 3040) / 10;
bModeSynth = 1;
} else {
HDPRINTF(ah, HAL_DBG_CHANNEL, "%s: invalid channel %u MHz\n",
__func__, freq);
return AH_FALSE;
}
channelSel = (channelSel << 2) & 0xff;
channelSel = ath_hal_reverseBits(channelSel, 8);
txctl = OS_REG_READ(ah, AR_PHY_CCK_TX_CTRL);
if (freq == 2484) {
/* Enable channel spreading for channel 14 */
OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
txctl | AR_PHY_CCK_TX_CTRL_JAPAN);
} else {
OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
txctl &~ AR_PHY_CCK_TX_CTRL_JAPAN);
}
} else if ((freq % 20) == 0 && freq >= 5120) {
channelSel = ath_hal_reverseBits(
((freq - 4800) / 20 << 2), 8);
if (AR_SREV_HOWL(ah) || AR_SREV_SOWL_10_OR_LATER(ah))
aModeRefSel = ath_hal_reverseBits(3, 2);
else
aModeRefSel = ath_hal_reverseBits(1, 2);
} else if ((freq % 10) == 0) {
channelSel = ath_hal_reverseBits(
((freq - 4800) / 10 << 1), 8);
if (AR_SREV_HOWL(ah) || AR_SREV_SOWL_10_OR_LATER(ah))
aModeRefSel = ath_hal_reverseBits(2, 2);
else
aModeRefSel = ath_hal_reverseBits(1, 2);
} else if ((freq % 5) == 0) {
channelSel = ath_hal_reverseBits(
(freq - 4800) / 5, 8);
aModeRefSel = ath_hal_reverseBits(1, 2);
} else {
HDPRINTF(ah, HAL_DBG_CHANNEL, "%s: invalid channel %u MHz\n",
__func__, freq);
return AH_FALSE;
}
#ifdef ATH_FORCE_BIAS
/* FOWL orientation sensitivity workaround */
ar5416ForceBiasCurrent(ah, freq);
/*
* Antenna Control with forceBias.
* This function must be called after ar5416ForceBiasCurrent() and
* ar5416SetRfRegs() and ar5416EepromSetBoardValues().
*/
ar5416DecreaseChainPower(ah, (HAL_CHANNEL*)chan);
#endif
reg32 = (channelSel << 8) | (aModeRefSel << 2) | (bModeSynth << 1) |
(1 << 5) | 0x1;
OS_REG_WRITE(ah, AR_PHY(0x37), reg32);
AH_PRIVATE(ah)->ah_curchan = chan;
#ifdef AH_SUPPORT_DFS
if (chan->privFlags & CHANNEL_DFS) {
struct ar5416RadarState *rs;
u_int8_t index;
rs = ar5416GetRadarChanState(ah, &index);
if (rs != AH_NULL) {
AH5416(ah)->ah_curchanRadIndex = (int16_t) index;
} else {
HDPRINTF(ah, HAL_DBG_DFS, "%s: Couldn't find radar state information\n",
__func__);
return AH_FALSE;
}
} else
#endif
AH5416(ah)->ah_curchanRadIndex = -1;
return AH_TRUE;
}
static HAL_BOOL
ar9280SetChannel(struct ath_hal *ah, HAL_CHANNEL_INTERNAL *chan)
{
struct ath_hal_5416 *ahp = AH5416(ah);
u_int16_t bMode, fracMode, aModeRefSel = 0;
u_int32_t freq, ndiv, channelSel = 0, channelFrac = 0, reg32 = 0;
CHAN_CENTERS centers;
u_int32_t refDivA = 24;
OS_MARK(ah, AH_MARK_SETCHANNEL, chan->channel);
ar5416GetChannelCenters(ah, chan, ¢ers);
freq = centers.synth_center;
reg32 = OS_REG_READ(ah, AR_PHY_SYNTH_CONTROL);
reg32 &= 0xc0000000;
if (freq < 4800) { /* 2 GHz, fractional mode */
u_int32_t txctl;
int regWrites = 0;
bMode = 1;
fracMode = 1;
aModeRefSel = 0;
channelSel = (freq * 0x10000)/15;
if (AR_SREV_KIWI_11_OR_LATER(ah)) {
if (freq == 2484) {
REG_WRITE_ARRAY(&ahp->ah_iniCckfirJapan2484, 1, regWrites);
} else {
REG_WRITE_ARRAY(&ahp->ah_iniCckfirNormal, 1, regWrites);
}
} else {
txctl = OS_REG_READ(ah, AR_PHY_CCK_TX_CTRL);
if (freq == 2484) {
/* Enable channel spreading for channel 14 */
OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
txctl | AR_PHY_CCK_TX_CTRL_JAPAN);
} else {
OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
txctl &~ AR_PHY_CCK_TX_CTRL_JAPAN);
}
}
} else {
bMode = 0;
fracMode = 0;
HALASSERT(aModeRefSel == 0);
switch (ar5416EepromGet(ahp, EEP_FRAC_N_5G)) {
case 0:
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 = (freq * 0x8000)/15;
/* RefDivA setting */
analogShiftRegRMW(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;
}
}
void
ar9280SpurMitigate(struct ath_hal *ah, const struct ieee80211_channel *chan)
{
static const int pilot_mask_reg[4] = { AR_PHY_TIMING7, AR_PHY_TIMING8,
AR_PHY_PILOT_MASK_01_30, AR_PHY_PILOT_MASK_31_60 };
static const int chan_mask_reg[4] = { AR_PHY_TIMING9, AR_PHY_TIMING10,
AR_PHY_CHANNEL_MASK_01_30, AR_PHY_CHANNEL_MASK_31_60 };
static int inc[4] = { 0, 100, 0, 0 };
int bb_spur = AR_NO_SPUR;
int freq;
int bin, cur_bin;
int bb_spur_off, spur_subchannel_sd;
int spur_freq_sd;
int spur_delta_phase;
int denominator;
int upper, lower, cur_vit_mask;
int tmp, newVal;
int i;
CHAN_CENTERS centers;
int8_t mask_m[123];
int8_t mask_p[123];
int8_t mask_amt;
int tmp_mask;
int cur_bb_spur;
HAL_BOOL is2GHz = IEEE80211_IS_CHAN_2GHZ(chan);
OS_MEMZERO(&mask_m, sizeof(int8_t) * 123);
OS_MEMZERO(&mask_p, sizeof(int8_t) * 123);
ar5416GetChannelCenters(ah, chan, ¢ers);
freq = centers.synth_center;
/*
* Need to verify range +/- 9.38 for static ht20 and +/- 18.75 for ht40,
* otherwise spur is out-of-band and can be ignored.
*/
for (i = 0; i < AR5416_EEPROM_MODAL_SPURS; i++) {
cur_bb_spur = ath_hal_getSpurChan(ah, i, is2GHz);
/* Get actual spur freq in MHz from EEPROM read value */
if (is2GHz) {
cur_bb_spur = (cur_bb_spur / 10) + AR_BASE_FREQ_2GHZ;
} else {
cur_bb_spur = (cur_bb_spur / 10) + AR_BASE_FREQ_5GHZ;
}
if (AR_NO_SPUR == cur_bb_spur)
break;
cur_bb_spur = cur_bb_spur - freq;
if (IEEE80211_IS_CHAN_HT40(chan)) {
if ((cur_bb_spur > -AR_SPUR_FEEQ_BOUND_HT40) &&
(cur_bb_spur < AR_SPUR_FEEQ_BOUND_HT40)) {
bb_spur = cur_bb_spur;
break;
}
} else if ((cur_bb_spur > -AR_SPUR_FEEQ_BOUND_HT20) &&
(cur_bb_spur < AR_SPUR_FEEQ_BOUND_HT20)) {
bb_spur = cur_bb_spur;
break;
}
}
if (AR_NO_SPUR == bb_spur) {
#if 1
/*
* MRC CCK can interfere with beacon detection and cause deaf/mute.
* Disable MRC CCK for now.
*/
OS_REG_CLR_BIT(ah, AR_PHY_FORCE_CLKEN_CCK, AR_PHY_FORCE_CLKEN_CCK_MRC_MUX);
#else
/* Enable MRC CCK if no spur is found in this channel. */
OS_REG_SET_BIT(ah, AR_PHY_FORCE_CLKEN_CCK, AR_PHY_FORCE_CLKEN_CCK_MRC_MUX);
#endif
return;
} else {
/*
* For Merlin, spur can break CCK MRC algorithm. Disable CCK MRC if spur
* is found in this channel.
*/
OS_REG_CLR_BIT(ah, AR_PHY_FORCE_CLKEN_CCK, AR_PHY_FORCE_CLKEN_CCK_MRC_MUX);
}
bin = bb_spur * 320;
tmp = OS_REG_READ(ah, AR_PHY_TIMING_CTRL4_CHAIN(0));
newVal = tmp | (AR_PHY_TIMING_CTRL4_ENABLE_SPUR_RSSI |
AR_PHY_TIMING_CTRL4_ENABLE_SPUR_FILTER |
AR_PHY_TIMING_CTRL4_ENABLE_CHAN_MASK |
AR_PHY_TIMING_CTRL4_ENABLE_PILOT_MASK);
OS_REG_WRITE(ah, AR_PHY_TIMING_CTRL4_CHAIN(0), newVal);
newVal = (AR_PHY_SPUR_REG_MASK_RATE_CNTL |
AR_PHY_SPUR_REG_ENABLE_MASK_PPM |
AR_PHY_SPUR_REG_MASK_RATE_SELECT |
AR_PHY_SPUR_REG_ENABLE_VIT_SPUR_RSSI |
SM(AR5416_SPUR_RSSI_THRESH, AR_PHY_SPUR_REG_SPUR_RSSI_THRESH));
OS_REG_WRITE(ah, AR_PHY_SPUR_REG, newVal);
/* Pick control or extn channel to cancel the spur */
if (IEEE80211_IS_CHAN_HT40(chan)) {
if (bb_spur < 0) {
spur_subchannel_sd = 1;
bb_spur_off = bb_spur + 10;
} else {
spur_subchannel_sd = 0;
bb_spur_off = bb_spur - 10;
}
} else {
spur_subchannel_sd = 0;
bb_spur_off = bb_spur;
}
/*
* spur_delta_phase = bb_spur/40 * 2**21 for static ht20,
* /80 for dyn2040.
*/
if (IEEE80211_IS_CHAN_HT40(chan))
spur_delta_phase = ((bb_spur * 262144) / 10) & AR_PHY_TIMING11_SPUR_DELTA_PHASE;
else
spur_delta_phase = ((bb_spur * 524288) / 10) & AR_PHY_TIMING11_SPUR_DELTA_PHASE;
/*
* in 11A mode the denominator of spur_freq_sd should be 40 and
* it should be 44 in 11G
*/
denominator = IEEE80211_IS_CHAN_2GHZ(chan) ? 44 : 40;
spur_freq_sd = ((bb_spur_off * 2048) / denominator) & 0x3ff;
newVal = (AR_PHY_TIMING11_USE_SPUR_IN_AGC |
SM(spur_freq_sd, AR_PHY_TIMING11_SPUR_FREQ_SD) |
SM(spur_delta_phase, AR_PHY_TIMING11_SPUR_DELTA_PHASE));
OS_REG_WRITE(ah, AR_PHY_TIMING11, newVal);
/* Choose to cancel between control and extension channels */
newVal = spur_subchannel_sd << AR_PHY_SFCORR_SPUR_SUBCHNL_SD_S;
OS_REG_WRITE(ah, AR_PHY_SFCORR_EXT, newVal);
/*
* ============================================
* Set Pilot and Channel Masks
*
* pilot mask 1 [31:0] = +6..-26, no 0 bin
* pilot mask 2 [19:0] = +26..+7
*
* channel mask 1 [31:0] = +6..-26, no 0 bin
* channel mask 2 [19:0] = +26..+7
*/
cur_bin = -6000;
upper = bin + 100;
lower = bin - 100;
for (i = 0; i < 4; i++) {
int pilot_mask = 0;
int chan_mask = 0;
int bp = 0;
for (bp = 0; bp < 30; bp++) {
if ((cur_bin > lower) && (cur_bin < upper)) {
pilot_mask = pilot_mask | 0x1 << bp;
chan_mask = chan_mask | 0x1 << bp;
}
cur_bin += 100;
}
cur_bin += inc[i];
OS_REG_WRITE(ah, pilot_mask_reg[i], pilot_mask);
OS_REG_WRITE(ah, chan_mask_reg[i], chan_mask);
}
/* =================================================
* viterbi mask 1 based on channel magnitude
* four levels 0-3
* - mask (-27 to 27) (reg 64,0x9900 to 67,0x990c)
* [1 2 2 1] for -9.6 or [1 2 1] for +16
* - enable_mask_ppm, all bins move with freq
*
* - mask_select, 8 bits for rates (reg 67,0x990c)
* - mask_rate_cntl, 8 bits for rates (reg 67,0x990c)
* choose which mask to use mask or mask2
*/
/*
* viterbi mask 2 2nd set for per data rate puncturing
* four levels 0-3
* - mask_select, 8 bits for rates (reg 67)
* - mask (-27 to 27) (reg 98,0x9988 to 101,0x9994)
* [1 2 2 1] for -9.6 or [1 2 1] for +16
*/
cur_vit_mask = 6100;
upper = bin + 120;
lower = bin - 120;
for (i = 0; i < 123; i++) {
if ((cur_vit_mask > lower) && (cur_vit_mask < upper)) {
if ((abs(cur_vit_mask - bin)) < 75) {
mask_amt = 1;
} else {
mask_amt = 0;
}
if (cur_vit_mask < 0) {
mask_m[abs(cur_vit_mask / 100)] = mask_amt;
} else {
mask_p[cur_vit_mask / 100] = mask_amt;
}
}
cur_vit_mask -= 100;
}
tmp_mask = (mask_m[46] << 30) | (mask_m[47] << 28)
| (mask_m[48] << 26) | (mask_m[49] << 24)
| (mask_m[50] << 22) | (mask_m[51] << 20)
| (mask_m[52] << 18) | (mask_m[53] << 16)
| (mask_m[54] << 14) | (mask_m[55] << 12)
| (mask_m[56] << 10) | (mask_m[57] << 8)
| (mask_m[58] << 6) | (mask_m[59] << 4)
| (mask_m[60] << 2) | (mask_m[61] << 0);
OS_REG_WRITE(ah, AR_PHY_BIN_MASK_1, tmp_mask);
OS_REG_WRITE(ah, AR_PHY_VIT_MASK2_M_46_61, tmp_mask);
tmp_mask = (mask_m[31] << 28)
| (mask_m[32] << 26) | (mask_m[33] << 24)
| (mask_m[34] << 22) | (mask_m[35] << 20)
| (mask_m[36] << 18) | (mask_m[37] << 16)
| (mask_m[48] << 14) | (mask_m[39] << 12)
| (mask_m[40] << 10) | (mask_m[41] << 8)
| (mask_m[42] << 6) | (mask_m[43] << 4)
| (mask_m[44] << 2) | (mask_m[45] << 0);
OS_REG_WRITE(ah, AR_PHY_BIN_MASK_2, tmp_mask);
OS_REG_WRITE(ah, AR_PHY_MASK2_M_31_45, tmp_mask);
tmp_mask = (mask_m[16] << 30) | (mask_m[16] << 28)
| (mask_m[18] << 26) | (mask_m[18] << 24)
| (mask_m[20] << 22) | (mask_m[20] << 20)
| (mask_m[22] << 18) | (mask_m[22] << 16)
| (mask_m[24] << 14) | (mask_m[24] << 12)
| (mask_m[25] << 10) | (mask_m[26] << 8)
| (mask_m[27] << 6) | (mask_m[28] << 4)
| (mask_m[29] << 2) | (mask_m[30] << 0);
OS_REG_WRITE(ah, AR_PHY_BIN_MASK_3, tmp_mask);
OS_REG_WRITE(ah, AR_PHY_MASK2_M_16_30, tmp_mask);
tmp_mask = (mask_m[ 0] << 30) | (mask_m[ 1] << 28)
| (mask_m[ 2] << 26) | (mask_m[ 3] << 24)
| (mask_m[ 4] << 22) | (mask_m[ 5] << 20)
| (mask_m[ 6] << 18) | (mask_m[ 7] << 16)
| (mask_m[ 8] << 14) | (mask_m[ 9] << 12)
| (mask_m[10] << 10) | (mask_m[11] << 8)
| (mask_m[12] << 6) | (mask_m[13] << 4)
| (mask_m[14] << 2) | (mask_m[15] << 0);
OS_REG_WRITE(ah, AR_PHY_MASK_CTL, tmp_mask);
OS_REG_WRITE(ah, AR_PHY_MASK2_M_00_15, tmp_mask);
tmp_mask = (mask_p[15] << 28)
| (mask_p[14] << 26) | (mask_p[13] << 24)
| (mask_p[12] << 22) | (mask_p[11] << 20)
| (mask_p[10] << 18) | (mask_p[ 9] << 16)
| (mask_p[ 8] << 14) | (mask_p[ 7] << 12)
| (mask_p[ 6] << 10) | (mask_p[ 5] << 8)
| (mask_p[ 4] << 6) | (mask_p[ 3] << 4)
| (mask_p[ 2] << 2) | (mask_p[ 1] << 0);
OS_REG_WRITE(ah, AR_PHY_BIN_MASK2_1, tmp_mask);
OS_REG_WRITE(ah, AR_PHY_MASK2_P_15_01, tmp_mask);
tmp_mask = (mask_p[30] << 28)
| (mask_p[29] << 26) | (mask_p[28] << 24)
| (mask_p[27] << 22) | (mask_p[26] << 20)
| (mask_p[25] << 18) | (mask_p[24] << 16)
| (mask_p[23] << 14) | (mask_p[22] << 12)
| (mask_p[21] << 10) | (mask_p[20] << 8)
| (mask_p[19] << 6) | (mask_p[18] << 4)
| (mask_p[17] << 2) | (mask_p[16] << 0);
OS_REG_WRITE(ah, AR_PHY_BIN_MASK2_2, tmp_mask);
OS_REG_WRITE(ah, AR_PHY_MASK2_P_30_16, tmp_mask);
tmp_mask = (mask_p[45] << 28)
| (mask_p[44] << 26) | (mask_p[43] << 24)
| (mask_p[42] << 22) | (mask_p[41] << 20)
| (mask_p[40] << 18) | (mask_p[39] << 16)
| (mask_p[38] << 14) | (mask_p[37] << 12)
| (mask_p[36] << 10) | (mask_p[35] << 8)
| (mask_p[34] << 6) | (mask_p[33] << 4)
| (mask_p[32] << 2) | (mask_p[31] << 0);
OS_REG_WRITE(ah, AR_PHY_BIN_MASK2_3, tmp_mask);
OS_REG_WRITE(ah, AR_PHY_MASK2_P_45_31, tmp_mask);
tmp_mask = (mask_p[61] << 30) | (mask_p[60] << 28)
| (mask_p[59] << 26) | (mask_p[58] << 24)
| (mask_p[57] << 22) | (mask_p[56] << 20)
| (mask_p[55] << 18) | (mask_p[54] << 16)
| (mask_p[53] << 14) | (mask_p[52] << 12)
| (mask_p[51] << 10) | (mask_p[50] << 8)
| (mask_p[49] << 6) | (mask_p[48] << 4)
| (mask_p[47] << 2) | (mask_p[46] << 0);
OS_REG_WRITE(ah, AR_PHY_BIN_MASK2_4, tmp_mask);
OS_REG_WRITE(ah, AR_PHY_MASK2_P_61_45, tmp_mask);
}
/*
* Take the MHz channel value and set the Channel value
*
* ASSUMES: Writes enabled to analog bus
*/
static HAL_BOOL
ar2133SetChannel(struct ath_hal *ah, const struct ieee80211_channel *chan)
{
uint32_t channelSel = 0;
uint32_t bModeSynth = 0;
uint32_t aModeRefSel = 0;
uint32_t reg32 = 0;
uint16_t freq;
CHAN_CENTERS centers;
OS_MARK(ah, AH_MARK_SETCHANNEL, chan->ic_freq);
ar5416GetChannelCenters(ah, chan, ¢ers);
freq = centers.synth_center;
if (freq < 4800) {
uint32_t txctl;
if (((freq - 2192) % 5) == 0) {
channelSel = ((freq - 672) * 2 - 3040)/10;
bModeSynth = 0;
} else if (((freq - 2224) % 5) == 0) {
channelSel = ((freq - 704) * 2 - 3040) / 10;
bModeSynth = 1;
} else {
HALDEBUG(ah, HAL_DEBUG_ANY,
"%s: invalid channel %u MHz\n", __func__, freq);
return AH_FALSE;
}
channelSel = (channelSel << 2) & 0xff;
channelSel = ath_hal_reverseBits(channelSel, 8);
txctl = OS_REG_READ(ah, AR_PHY_CCK_TX_CTRL);
if (freq == 2484) {
/* Enable channel spreading for channel 14 */
OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
txctl | AR_PHY_CCK_TX_CTRL_JAPAN);
} else {
OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
txctl &~ AR_PHY_CCK_TX_CTRL_JAPAN);
}
} else if ((freq % 20) == 0 && freq >= 5120) {
channelSel = ath_hal_reverseBits(((freq - 4800) / 20 << 2), 8);
if (AR_SREV_SOWL_10_OR_LATER(ah))
aModeRefSel = ath_hal_reverseBits(3, 2);
else
aModeRefSel = ath_hal_reverseBits(1, 2);
} else if ((freq % 10) == 0) {
channelSel = ath_hal_reverseBits(((freq - 4800) / 10 << 1), 8);
if (AR_SREV_SOWL_10_OR_LATER(ah))
aModeRefSel = ath_hal_reverseBits(2, 2);
else
aModeRefSel = ath_hal_reverseBits(1, 2);
} else if ((freq % 5) == 0) {
channelSel = ath_hal_reverseBits((freq - 4800) / 5, 8);
aModeRefSel = ath_hal_reverseBits(1, 2);
} else {
HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel %u MHz\n",
__func__, freq);
return AH_FALSE;
}
reg32 = (channelSel << 8) | (aModeRefSel << 2) | (bModeSynth << 1) |
(1 << 5) | 0x1;
OS_REG_WRITE(ah, AR_PHY(0x37), reg32);
AH_PRIVATE(ah)->ah_curchan = chan;
return AH_TRUE;
}
/*
* Take the MHz channel value and set the Channel value
*
* ASSUMES: Writes 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))
*
* For 5GHz channels which are 5MHz spaced,
* Channel Frequency = (3/2) * freq_ref * (chansel[8:0] + chanfrac[16:0]/2^17)
* (freq_ref = 40MHz)
*/
static HAL_BOOL
ar9280SetChannel(struct ath_hal *ah, const struct ieee80211_channel *chan)
{
uint16_t bMode, fracMode, aModeRefSel = 0;
uint32_t freq, ndiv, channelSel = 0, channelFrac = 0, reg32 = 0;
CHAN_CENTERS centers;
uint32_t refDivA = 24;
uint8_t frac_n_5g;
OS_MARK(ah, AH_MARK_SETCHANNEL, chan->ic_freq);
ar5416GetChannelCenters(ah, chan, ¢ers);
freq = centers.synth_center;
reg32 = OS_REG_READ(ah, AR_PHY_SYNTH_CONTROL);
reg32 &= 0xc0000000;
if (ath_hal_eepromGet(ah, AR_EEP_FRAC_N_5G, &frac_n_5g) != HAL_OK)
frac_n_5g = 0;
if (freq < 4800) { /* 2 GHz, fractional mode */
uint32_t txctl;
bMode = 1;
fracMode = 1;
aModeRefSel = 0;
channelSel = (freq * 0x10000)/15;
txctl = OS_REG_READ(ah, AR_PHY_CCK_TX_CTRL);
if (freq == 2484) {
/* Enable channel spreading for channel 14 */
OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
txctl | AR_PHY_CCK_TX_CTRL_JAPAN);
} else {
OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
txctl &~ AR_PHY_CCK_TX_CTRL_JAPAN);
}
} else {
bMode = 0;
fracMode = 0;
switch (frac_n_5g) {
case 0:
/*
* Enable fractional mode for half/quarter rate
* channels.
*
* This is from the Linux ath9k code, rather than
* the Atheros HAL code.
*/
if (IEEE80211_IS_CHAN_QUARTER(chan) ||
IEEE80211_IS_CHAN_HALF(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 */
/*
* Workaround for talking on PSB non-5MHz channels;
* the pre-Merlin chips only had a 2.5MHz channel
* spacing so some channels aren't reachable.
*
* This interoperates on the quarter rate channels
* with the AR5112 and later RF synths. Please note
* that the synthesiser isn't able to completely
* accurately represent these frequencies (as the
* resolution in this reference is 2.5MHz) and thus
* it will be slightly "off centre." This matches
* the same slightly incorrect centre frequency
* behaviour that the AR5112 and later channel
* selection code has.
*
* This also interoperates with the AR5416
* synthesiser modification for programming
* fractional frequencies in 5GHz mode. However
* that modification is also disabled by default.
*
* This is disabled because it hasn't been tested for
* regulatory compliance and neither have the NICs
* which would use it. So if you enable this code,
* you must first ensure that you've re-certified the
* NICs in question beforehand or you will be
* violating your local regulatory rules and breaking
* the law.
*/
#if 0
if (freq % 5 == 0) {
#endif
/* Normal */
fracMode = 1;
refDivA = 1;
channelSel = (freq * 0x8000)/15;
#if 0
} else {
/* Offset by 500KHz */
uint32_t f, ch, ch2;
fracMode = 1;
refDivA = 1;
/* Calculate the "adjusted" frequency */
f = freq - 2;
ch = (((f - 4800) * 10) / 25) + 1;
ch2 = ((ch * 25) / 5) + 9600;
channelSel = (ch2 * 0x4000) / 15;
//ath_hal_printf(ah,
// "%s: freq=%d, ch=%d, ch2=%d, "
// "channelSel=%d\n",
// __func__, freq, ch, ch2, channelSel);
}
#endif
/* RefDivA setting */
OS_A_REG_RMW_FIELD(ah, AR_AN_SYNTH9,
AR_AN_SYNTH9_REFDIVA, refDivA);
}
if (!fracMode) {
ndiv = (freq * (refDivA >> aModeRefSel))/60;
channelSel = ndiv & 0x1ff;
channelFrac = (ndiv & 0xfffffe00) * 2;
channelSel = (channelSel << 17) | channelFrac;
}
}
/**************************************************************
* ar5416GetTargetPowersLeg
*
* Return the four rates of target power for the given target power table
* channel, and number of channels
*/
void
ar5416GetTargetPowersLeg(struct ath_hal *ah,
HAL_CHANNEL_INTERNAL *chan,
CAL_TARGET_POWER_LEG *powInfo, u_int16_t numChannels,
CAL_TARGET_POWER_LEG *pNewPower, u_int16_t numRates,
HAL_BOOL isExtTarget)
{
u_int16_t clo, chi;
int i;
int matchIndex = -1, lowIndex = -1;
u_int16_t freq;
CHAN_CENTERS centers;
ar5416GetChannelCenters(ah, chan, ¢ers);
freq = (isExtTarget) ? centers.ext_center : centers.ctl_center;
/* Copy the target powers into the temp channel list */
if (freq <= fbin2freq(powInfo[0].bChannel, IS_CHAN_2GHZ(chan)))
{
matchIndex = 0;
}
else
{
for (i = 0; (i < numChannels) && (powInfo[i].bChannel != AR5416_BCHAN_UNUSED); i++)
{
if (freq == fbin2freq(powInfo[i].bChannel, IS_CHAN_2GHZ(chan)))
{
matchIndex = i;
break;
}
else if ((freq < fbin2freq(powInfo[i].bChannel, IS_CHAN_2GHZ(chan))) &&
(freq > fbin2freq(powInfo[i - 1].bChannel, IS_CHAN_2GHZ(chan))))
{
lowIndex = i - 1;
break;
}
}
if ((matchIndex == -1) && (lowIndex == -1))
{
HALASSERT(freq > fbin2freq(powInfo[i - 1].bChannel, IS_CHAN_2GHZ(chan)));
matchIndex = i - 1;
}
}
if (matchIndex != -1)
{
*pNewPower = powInfo[matchIndex];
}
else
{
HALASSERT(lowIndex != -1);
/*
* Get the lower and upper channels, target powers,
* and interpolate between them.
*/
clo = fbin2freq(powInfo[lowIndex].bChannel, IS_CHAN_2GHZ(chan));
chi = fbin2freq(powInfo[lowIndex + 1].bChannel, IS_CHAN_2GHZ(chan));
for (i = 0; i < numRates; i++)
{
pNewPower->tPow2x[i] = (u_int8_t)interpolate(freq, clo, chi,
powInfo[lowIndex].tPow2x[i], powInfo[lowIndex + 1].tPow2x[i]);
}
}
}
