void ar9300_start_spectral_scan(struct ath_hal *ah)
{
u_int32_t val;
struct ath_hal_9300 *ahp = AH9300(ah);
bool asleep = ahp->ah_chip_full_sleep;
if ((AR_SREV_WASP(ah) || AR_SREV_SCORPION(ah)) && asleep) {
ar9300_set_power_mode(ah, HAL_PM_AWAKE, true);
}
ar9300_prep_spectral_scan(ah);
/* activate spectral scan */
val = OS_REG_READ(ah, AR_PHY_SPECTRAL_SCAN);
/* This is a hardware bug fix, the enable and active bits should
* not be set/reset in the same write operation to the register
*/
if (!(val & AR_PHY_SPECTRAL_SCAN_ENABLE)) {
val |= AR_PHY_SPECTRAL_SCAN_ENABLE;
OS_REG_WRITE(ah, AR_PHY_SPECTRAL_SCAN, val);
val = OS_REG_READ(ah, AR_PHY_SPECTRAL_SCAN);
}
val |= AR_PHY_SPECTRAL_SCAN_ACTIVE;
OS_REG_WRITE(ah, AR_PHY_SPECTRAL_SCAN, val);
/* Reset the PHY_ERR_MASK */
val = OS_REG_READ(ah, AR_PHY_ERR_MASK_REG);
OS_REG_WRITE(ah, AR_PHY_ERR_MASK_REG, val | AR_PHY_ERR_RADAR);
if ((AR_SREV_WASP(ah) || AR_SREV_SCORPION(ah)) && asleep) {
ar9300_set_power_mode(ah, HAL_PM_FULL_SLEEP, true);
}
}
/*
function to adjust PRSSI value for CAC problem
*/
void
ar9300_dfs_cac_war(struct ath_hal *ah, u_int32_t start)
{
u_int32_t val;
struct ath_hal_9300 *ahp = AH9300(ah);
bool asleep = ahp->ah_chip_full_sleep;
if ((AR_SREV_WASP(ah) || AR_SREV_SCORPION(ah)) && asleep) {
ar9300_set_power_mode(ah, HAL_PM_AWAKE, true);
}
if (AR_SREV_AR9580(ah) || AR_SREV_WASP(ah) || AR_SREV_SCORPION(ah)) {
val = OS_REG_READ(ah, AR_PHY_RADAR_0);
if (start) {
val &= ~AR_PHY_RADAR_0_PRSSI;
val |= SM(AR9300_DFS_PRSSI_CAC, AR_PHY_RADAR_0_PRSSI);
} else {
val &= ~AR_PHY_RADAR_0_PRSSI;
val |= SM(AR9300_DFS_PRSSI, AR_PHY_RADAR_0_PRSSI);
}
OS_REG_WRITE(ah, AR_PHY_RADAR_0, val | AR_PHY_RADAR_0_ENA);
ah->ah_use_cac_prssi = start;
}
if ((AR_SREV_WASP(ah) || AR_SREV_SCORPION(ah)) && asleep) {
ar9300_set_power_mode(ah, HAL_PM_FULL_SLEEP, true);
}
}
u_int32_t ar9300_dfs_config_fft(struct ath_hal *ah, bool is_enable)
{
u_int32_t val;
struct ath_hal_9300 *ahp = AH9300(ah);
bool asleep = ahp->ah_chip_full_sleep;
if ((AR_SREV_WASP(ah) || AR_SREV_SCORPION(ah)) && asleep) {
ar9300_set_power_mode(ah, HAL_PM_AWAKE, true);
}
val = OS_REG_READ(ah, AR_PHY_RADAR_0);
if (is_enable) {
val |= AR_PHY_RADAR_0_FFT_ENA;
} else {
val &= ~AR_PHY_RADAR_0_FFT_ENA;
}
OS_REG_WRITE(ah, AR_PHY_RADAR_0, val);
val = OS_REG_READ(ah, AR_PHY_RADAR_0);
if ((AR_SREV_WASP(ah) || AR_SREV_SCORPION(ah)) && asleep) {
ar9300_set_power_mode(ah, HAL_PM_FULL_SLEEP, true);
}
return val;
}
bool
ar9300_handle_radar_bb_panic(struct ath_hal *ah)
{
u_int32_t status;
u_int32_t val;
struct ath_hal_9300 *ahp = AH9300(ah);
bool asleep = ahp->ah_chip_full_sleep;
status = AH_PRIVATE(ah)->ah_bb_panic_last_status;
if ( status == 0x04000539 ) {
if ((AR_SREV_WASP(ah) || AR_SREV_SCORPION(ah)) && asleep) {
ar9300_set_power_mode(ah, HAL_PM_AWAKE, true);
}
/* recover from this BB panic without reset*/
/* set AR9300_DFS_FIRPWR to -1 */
val = OS_REG_READ(ah, AR_PHY_RADAR_0);
val &= (~AR_PHY_RADAR_0_FIRPWR);
val |= SM( 0x7f, AR_PHY_RADAR_0_FIRPWR);
OS_REG_WRITE(ah, AR_PHY_RADAR_0, val);
OS_DELAY(1);
/* set AR9300_DFS_FIRPWR to its default value */
val = OS_REG_READ(ah, AR_PHY_RADAR_0);
val &= ~AR_PHY_RADAR_0_FIRPWR;
val |= SM( AR9300_DFS_FIRPWR, AR_PHY_RADAR_0_FIRPWR);
OS_REG_WRITE(ah, AR_PHY_RADAR_0, val);
if ((AR_SREV_WASP(ah) || AR_SREV_SCORPION(ah)) && asleep) {
ar9300_set_power_mode(ah, HAL_PM_FULL_SLEEP, true);
}
return true;
} else if (status == 0x0400000a) {
/* EV 92527 : reset required if we see this signature */
HDPRINTF(ah, HAL_DBG_DFS, "%s: BB Panic -- 0x0400000a\n", __func__);
return false;
} else if (status == 0x1300000a) {
/* EV92527: we do not need a reset if we see this signature */
HDPRINTF(ah, HAL_DBG_DFS, "%s: BB Panic -- 0x1300000a\n", __func__);
return true;
} else if ((AR_SREV_WASP(ah) || AR_SREV_HONEYBEE(ah)) && (status == 0x04000409)) {
return true;
} else {
if (ar9300_get_capability(ah, HAL_CAP_LDPCWAR, 0, AH_NULL) == HAL_OK &&
(status & 0xff00000f) == 0x04000009 &&
status != 0x04000409 &&
status != 0x04000b09 &&
status != 0x04000e09 &&
(status & 0x0000ff00))
{
/* disable RIFS Rx */
#ifdef AH_DEBUG
HDPRINTF(ah, HAL_DBG_UNMASKABLE, "%s: BB status=0x%08x rifs=%d - disable\n",
__func__, status, ahp->ah_rifs_enabled);
#endif
ar9300_set_rifs_delay(ah, false);
}
return false;
}
}
void
ar9300_get_spectral_params(struct ath_hal *ah, HAL_SPECTRAL_PARAM *ss)
{
u_int32_t val;
HAL_CHANNEL_INTERNAL *chan = NULL;
const struct ieee80211_channel *c;
int i, ichain, rx_chain_status;
struct ath_hal_9300 *ahp = AH9300(ah);
HAL_BOOL asleep = ahp->ah_chip_full_sleep;
c = AH_PRIVATE(ah)->ah_curchan;
if (c != NULL)
chan = ath_hal_checkchannel(ah, c);
// XXX TODO: just always wake up all chips?
if ((AR_SREV_WASP(ah) || AR_SREV_SCORPION(ah)) && asleep) {
ar9300_set_power_mode(ah, HAL_PM_AWAKE, AH_TRUE);
}
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);
ss->ss_count = MS(val, AR_PHY_SPECTRAL_SCAN_COUNT);
ss->ss_short_report = (val & AR_PHY_SPECTRAL_SCAN_SHORT_REPEAT) ? 1:0;
ss->ss_spectral_pri = ( val & AR_PHY_SPECTRAL_SCAN_PRIORITY_HI) ? 1:0;
OS_MEMZERO(ss->ss_nf_cal, sizeof(ss->ss_nf_cal));
OS_MEMZERO(ss->ss_nf_pwr, sizeof(ss->ss_nf_cal));
ss->ss_nf_temp_data = 0;
if (chan != NULL) {
rx_chain_status = OS_REG_READ(ah, AR_PHY_RX_CHAINMASK) & 0x7;
for (i = 0; i < HAL_NUM_NF_READINGS; i++) {
ichain = i % 3;
if (rx_chain_status & (1 << ichain)) {
ss->ss_nf_cal[i] =
ar9300_noise_floor_get(ah, chan->channel, ichain);
ss->ss_nf_pwr[i] =
ar9300_noise_floor_power_get(ah, chan->channel, ichain);
}
}
ss->ss_nf_temp_data = OS_REG_READ_FIELD(ah, AR_PHY_BB_THERM_ADC_4, AR_PHY_BB_THERM_ADC_4_LATEST_THERM);
} else {
HALDEBUG(AH_NULL, HAL_DEBUG_UNMASKABLE,
"%s: chan is NULL - no ss nf values\n", __func__);
}
if ((AR_SREV_WASP(ah) || AR_SREV_SCORPION(ah)) && asleep) {
ar9300_set_power_mode(ah, HAL_PM_FULL_SLEEP, AH_TRUE);
}
}
u_int32_t ar9300_get_spectral_config(struct ath_hal *ah)
{
u_int32_t val;
struct ath_hal_9300 *ahp = AH9300(ah);
bool asleep = ahp->ah_chip_full_sleep;
if ((AR_SREV_WASP(ah) || AR_SREV_SCORPION(ah)) && asleep) {
ar9300_set_power_mode(ah, HAL_PM_AWAKE, true);
}
val = OS_REG_READ(ah, AR_PHY_SPECTRAL_SCAN);
if ((AR_SREV_WASP(ah) || AR_SREV_SCORPION(ah)) && asleep) {
ar9300_set_power_mode(ah, HAL_PM_FULL_SLEEP, true);
}
return val;
}
void ar9300_stop_spectral_scan(struct ath_hal *ah)
{
u_int32_t val;
struct ath_hal_9300 *ahp = AH9300(ah);
bool asleep = ahp->ah_chip_full_sleep;
if ((AR_SREV_WASP(ah) || AR_SREV_SCORPION(ah)) && asleep) {
ar9300_set_power_mode(ah, HAL_PM_AWAKE, true);
}
val = OS_REG_READ(ah, AR_PHY_SPECTRAL_SCAN);
/* deactivate spectral scan */
/* HW Bug fix -- Do not disable the spectral scan
* only turn off the active bit
*/
//val &= ~AR_PHY_SPECTRAL_SCAN_ENABLE;
val &= ~AR_PHY_SPECTRAL_SCAN_ACTIVE;
OS_REG_WRITE(ah, AR_PHY_SPECTRAL_SCAN, val);
val = OS_REG_READ(ah, AR_PHY_SPECTRAL_SCAN);
OS_REG_RMW_FIELD(ah, AR_PHY_RADAR_1, AR_PHY_RADAR_1_CF_BIN_THRESH,
ahp->ah_radar1);
OS_REG_RMW_FIELD(ah, AR_PHY_TIMING2, AR_PHY_TIMING2_DC_OFFSET,
ahp->ah_dc_offset);
OS_REG_WRITE(ah, AR_PHY_ERR, 0);
if (AH_PRIVATE(ah)->ah_curchan &&
IS_5GHZ_FAST_CLOCK_EN(ah, AH_PRIVATE(ah)->ah_curchan))
{ /* fast clock */
OS_REG_RMW_FIELD(ah, AR_PHY_MODE, AR_PHY_MODE_DISABLE_CCK,
ahp->ah_disable_cck);
}
val = OS_REG_READ(ah, AR_PHY_ERR);
val = OS_REG_READ(ah, AR_PHY_ERR_MASK_REG) & (~AR_PHY_ERR_RADAR);
OS_REG_WRITE(ah, AR_PHY_ERR_MASK_REG, val);
if ((AR_SREV_WASP(ah) || AR_SREV_SCORPION(ah)) && asleep) {
ar9300_set_power_mode(ah, HAL_PM_FULL_SLEEP, true);
}
}
/*
* Get the radar parameter values and return them in the pe
* structure
*/
void
ar9300_get_dfs_thresh(struct ath_hal *ah, HAL_PHYERR_PARAM *pe)
{
u_int32_t val, temp;
struct ath_hal_9300 *ahp = AH9300(ah);
bool asleep = ahp->ah_chip_full_sleep;
if ((AR_SREV_WASP(ah) || AR_SREV_SCORPION(ah)) && asleep) {
ar9300_set_power_mode(ah, HAL_PM_AWAKE, true);
}
val = OS_REG_READ(ah, AR_PHY_RADAR_0);
temp = MS(val, AR_PHY_RADAR_0_FIRPWR);
temp |= ~(AR_PHY_RADAR_0_FIRPWR >> AR_PHY_RADAR_0_FIRPWR_S);
pe->pe_firpwr = temp;
pe->pe_rrssi = MS(val, AR_PHY_RADAR_0_RRSSI);
pe->pe_height = MS(val, AR_PHY_RADAR_0_HEIGHT);
pe->pe_prssi = MS(val, AR_PHY_RADAR_0_PRSSI);
pe->pe_inband = MS(val, AR_PHY_RADAR_0_INBAND);
val = OS_REG_READ(ah, AR_PHY_RADAR_1);
pe->pe_relpwr = MS(val, AR_PHY_RADAR_1_RELPWR_THRESH);
if (val & AR_PHY_RADAR_1_RELPWR_ENA) {
pe->pe_relpwr |= HAL_PHYERR_PARAM_ENABLE;
}
pe->pe_relstep = MS(val, AR_PHY_RADAR_1_RELSTEP_THRESH);
if (val & AR_PHY_RADAR_1_RELSTEP_CHECK) {
pe->pe_relstep |= HAL_PHYERR_PARAM_ENABLE;
}
pe->pe_maxlen = MS(val, AR_PHY_RADAR_1_MAXLEN);
if ((AR_SREV_WASP(ah) || AR_SREV_SCORPION(ah)) && asleep) {
ar9300_set_power_mode(ah, HAL_PM_FULL_SLEEP, true);
}
}
/*
function to adjust PRSSI value for CAC problem
*/
void
ar9300_dfs_cac_war(struct ath_hal *ah, u_int32_t start)
{
u_int32_t val;
if (AR_SREV_AR9580(ah) || AR_SREV_WASP(ah) || AR_SREV_SCORPION(ah)) {
val = OS_REG_READ(ah, AR_PHY_RADAR_0);
if (start) {
val &= ~AR_PHY_RADAR_0_PRSSI;
val |= SM(AR9300_DFS_PRSSI_CAC, AR_PHY_RADAR_0_PRSSI);
} else {
val &= ~AR_PHY_RADAR_0_PRSSI;
val |= SM(AR9300_DFS_PRSSI, AR_PHY_RADAR_0_PRSSI);
}
OS_REG_WRITE(ah, AR_PHY_RADAR_0, val | AR_PHY_RADAR_0_ENA);
ah->ah_use_cac_prssi = start;
}
}
void
ar9300_configure_spectral_scan(struct ath_hal *ah, HAL_SPECTRAL_PARAM *ss)
{
u_int32_t val, i;
struct ath_hal_9300 *ahp = AH9300(ah);
bool asleep = ahp->ah_chip_full_sleep;
int16_t nf_buf[NUM_NF_READINGS];
if ((AR_SREV_WASP(ah) || AR_SREV_SCORPION(ah)) && asleep) {
ar9300_set_power_mode(ah, HAL_PM_AWAKE, true);
}
ar9300_prep_spectral_scan(ah);
if (ss->ss_spectral_pri) {
for (i = 0; i < NUM_NF_READINGS; i++) {
nf_buf[i] = NOISE_PWR_DBM_2_INT(ss->ss_nf_cal[i]);
}
ar9300_load_nf(ah, nf_buf);
#ifdef DEMO_MODE
ar9300_disable_strong_signal(ah);
ar9300_disable_weak_signal(ah);
ar9300_set_radar_dc_thresh(ah);
ar9300_set_cca_threshold(ah, MAX_CCA_THRESH);
/*ar9300_disable_restart(ah);*/
#endif
}
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_count != HAL_SPECTRAL_PARAM_NOVAL) {
val &= ~AR_PHY_SPECTRAL_SCAN_COUNT;
/* Remnants of a Merlin bug, 128 translates to 0 for
* continuous scanning. Instead we do piecemeal captures
* of 64 samples for Osprey.
*/
if (ss->ss_count == 128) {
val |= SM(0, AR_PHY_SPECTRAL_SCAN_COUNT);
} else {
val |= SM(ss->ss_count, AR_PHY_SPECTRAL_SCAN_COUNT);
}
}
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_short_report == true) {
val |= AR_PHY_SPECTRAL_SCAN_SHORT_REPEAT;
} else {
val &= ~AR_PHY_SPECTRAL_SCAN_SHORT_REPEAT;
}
/* if noise power cal, force high priority */
if (ss->ss_spectral_pri) {
val |= AR_PHY_SPECTRAL_SCAN_PRIORITY_HI;
} else {
val &= ~AR_PHY_SPECTRAL_SCAN_PRIORITY_HI;
}
/* enable spectral scan */
OS_REG_WRITE(ah, AR_PHY_SPECTRAL_SCAN, val | AR_PHY_SPECTRAL_SCAN_ENABLE);
if ((AR_SREV_WASP(ah) || AR_SREV_SCORPION(ah)) && asleep) {
ar9300_set_power_mode(ah, HAL_PM_FULL_SLEEP, true);
}
}
/*
* Enable radar detection and set the radar parameters per the
* values in pe
*/
void
ar9300_enable_dfs(struct ath_hal *ah, HAL_PHYERR_PARAM *pe)
{
u_int32_t val;
struct ath_hal_private *ahp = AH_PRIVATE(ah);
HAL_CHANNEL_INTERNAL *ichan = ahp->ah_curchan;
struct ath_hal_9300 *ah9300 = AH9300(ah);
bool asleep = ah9300->ah_chip_full_sleep;
int reg_writes = 0;
if ((AR_SREV_WASP(ah) || AR_SREV_SCORPION(ah)) && asleep) {
ar9300_set_power_mode(ah, HAL_PM_AWAKE, true);
}
val = OS_REG_READ(ah, AR_PHY_RADAR_0);
val |= AR_PHY_RADAR_0_FFT_ENA | AR_PHY_RADAR_0_ENA;
if (pe->pe_firpwr != HAL_PHYERR_PARAM_NOVAL) {
val &= ~AR_PHY_RADAR_0_FIRPWR;
val |= SM(pe->pe_firpwr, AR_PHY_RADAR_0_FIRPWR);
}
if (pe->pe_rrssi != HAL_PHYERR_PARAM_NOVAL) {
val &= ~AR_PHY_RADAR_0_RRSSI;
val |= SM(pe->pe_rrssi, AR_PHY_RADAR_0_RRSSI);
}
if (pe->pe_height != HAL_PHYERR_PARAM_NOVAL) {
val &= ~AR_PHY_RADAR_0_HEIGHT;
val |= SM(pe->pe_height, AR_PHY_RADAR_0_HEIGHT);
}
if (pe->pe_prssi != HAL_PHYERR_PARAM_NOVAL) {
val &= ~AR_PHY_RADAR_0_PRSSI;
if (AR_SREV_AR9580(ah) || AR_SREV_WASP(ah) || AR_SREV_SCORPION(ah)) {
if (ah->ah_use_cac_prssi) {
val |= SM(AR9300_DFS_PRSSI_CAC, AR_PHY_RADAR_0_PRSSI);
} else {
val |= SM(pe->pe_prssi, AR_PHY_RADAR_0_PRSSI);
}
} else {
val |= SM(pe->pe_prssi, AR_PHY_RADAR_0_PRSSI);
}
}
if (pe->pe_inband != HAL_PHYERR_PARAM_NOVAL) {
val &= ~AR_PHY_RADAR_0_INBAND;
val |= SM(pe->pe_inband, AR_PHY_RADAR_0_INBAND);
}
OS_REG_WRITE(ah, AR_PHY_RADAR_0, val);
val = OS_REG_READ(ah, AR_PHY_RADAR_1);
val |= AR_PHY_RADAR_1_MAX_RRSSI | AR_PHY_RADAR_1_BLOCK_CHECK;
if (pe->pe_maxlen != HAL_PHYERR_PARAM_NOVAL) {
val &= ~AR_PHY_RADAR_1_MAXLEN;
val |= SM(pe->pe_maxlen, AR_PHY_RADAR_1_MAXLEN);
}
if (pe->pe_relstep != HAL_PHYERR_PARAM_NOVAL) {
val &= ~AR_PHY_RADAR_1_RELSTEP_THRESH;
val |= SM(pe->pe_relstep, AR_PHY_RADAR_1_RELSTEP_THRESH);
}
if (pe->pe_relpwr != HAL_PHYERR_PARAM_NOVAL) {
val &= ~AR_PHY_RADAR_1_RELPWR_THRESH;
val |= SM(pe->pe_relpwr, AR_PHY_RADAR_1_RELPWR_THRESH);
}
OS_REG_WRITE(ah, AR_PHY_RADAR_1, val);
if (ath_hal_getcapability(ah, HAL_CAP_EXT_CHAN_DFS, 0, 0) == HAL_OK) {
val = OS_REG_READ(ah, AR_PHY_RADAR_EXT);
if (IS_CHAN_HT40(ichan)) {
/* Enable extension channel radar detection */
OS_REG_WRITE(ah, AR_PHY_RADAR_EXT, val | AR_PHY_RADAR_EXT_ENA);
} else {
/* HT20 mode, disable extension channel radar detect */
OS_REG_WRITE(ah, AR_PHY_RADAR_EXT, val & ~AR_PHY_RADAR_EXT_ENA);
}
}
/*
apply DFS postamble array from INI
column 0 is register ID, column 1 is HT20 value, colum2 is HT40 value
*/
if (AR_SREV_AR9580(ah) || AR_SREV_WASP(ah) || AR_SREV_OSPREY_22(ah) || AR_SREV_SCORPION(ah)) {
REG_WRITE_ARRAY(&ah9300->ah_ini_dfs,IS_CHAN_HT40(ichan)? 2:1, reg_writes);
}
#ifdef ATH_HAL_DFS_CHIRPING_FIX_APH128
HDPRINTF(ah, HAL_DBG_DFS,"DFS change the timing value\n");
if (AR_SREV_AR9580(ah) && IS_CHAN_HT40(ichan)) {
OS_REG_WRITE(ah, AR_PHY_TIMING6, 0x3140c00a);
}
#endif
if ((AR_SREV_WASP(ah) || AR_SREV_SCORPION(ah)) && asleep) {
ar9300_set_power_mode(ah, HAL_PM_FULL_SLEEP, 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>>amode_ref_sel))
*
* 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
ar9300_set_channel(struct ath_hal *ah, struct ieee80211_channel *chan)
{
u_int16_t b_mode, frac_mode = 0, a_mode_ref_sel = 0;
u_int32_t freq, channel_sel, reg32;
u_int8_t clk_25mhz = AH9300(ah)->clk_25mhz;
CHAN_CENTERS centers;
int load_synth_channel;
#ifdef AH_DEBUG_ALQ
HAL_CHANNEL_INTERNAL *ichan = ath_hal_checkchannel(ah, chan);
#endif
/*
* Put this behind AH_DEBUG_ALQ for now until the Hornet
* channel_sel code below is made to work.
*/
#ifdef AH_DEBUG_ALQ
OS_MARK(ah, AH_MARK_SETCHANNEL, ichan->channel);
#endif
ar9300_get_channel_centers(ah, chan, ¢ers);
freq = centers.synth_center;
if (freq < 4800) { /* 2 GHz, fractional mode */
b_mode = 1; /* 2 GHz */
if (AR_SREV_HORNET(ah)) {
#if 0
u_int32_t ichan =
ieee80211_mhz2ieee(ah, chan->ic_freq, chan->ic_flags);
HALASSERT(ichan > 0 && ichan <= 14);
if (clk_25mhz) {
channel_sel = ar9300_chansel_xtal_25M[ichan - 1];
} else {
channel_sel = ar9300_chansel_xtal_40M[ichan - 1];
}
#endif
uint32_t i;
/*
* Pay close attention to this bit!
*
* We need to map the actual desired synth frequency to
* one of the channel select array entries.
*
* For HT20, it'll align with the channel we select.
*
* For HT40 though it won't - the centre frequency
* will not be the frequency of chan->ic_freq or ichan->freq;
* it needs to be whatever frequency maps to 'freq'.
*/
i = ath_hal_mhz2ieee_2ghz(ah, freq);
HALASSERT(i > 0 && i <= 14);
if (clk_25mhz) {
channel_sel = ar9300_chansel_xtal_25M[i - 1];
} else {
channel_sel = ar9300_chansel_xtal_40M[i - 1];
}
} else if (AR_SREV_POSEIDON(ah) || AR_SREV_APHRODITE(ah)) {
u_int32_t channel_frac;
/*
* freq_ref = (40 / (refdiva >> a_mode_ref_sel));
* (where refdiva = 1 and amoderefsel = 0)
* ndiv = ((chan_mhz * 4) / 3) / freq_ref;
* chansel = int(ndiv), chanfrac = (ndiv - chansel) * 0x20000
*/
channel_sel = (freq * 4) / 120;
channel_frac = (((freq * 4) % 120) * 0x20000) / 120;
channel_sel = (channel_sel << 17) | (channel_frac);
} else if (AR_SREV_WASP(ah) || AR_SREV_SCORPION(ah) || AR_SREV_HONEYBEE(ah)) {
u_int32_t channel_frac;
if (clk_25mhz) {
/*
* freq_ref = (50 / (refdiva >> a_mode_ref_sel));
* (where refdiva = 1 and amoderefsel = 0)
* ndiv = ((chan_mhz * 4) / 3) / freq_ref;
* chansel = int(ndiv), chanfrac = (ndiv - chansel) * 0x20000
*/
if (AR_SREV_SCORPION(ah) || AR_SREV_HONEYBEE(ah)) {
/* Doubler is off for Scorpion */
channel_sel = (freq * 4) / 75;
channel_frac = (((freq * 4) % 75) * 0x20000) / 75;
} else {
channel_sel = (freq * 2) / 75;
channel_frac = (((freq * 2) % 75) * 0x20000) / 75;
}
} else {
/*
* freq_ref = (50 / (refdiva >> a_mode_ref_sel));
* (where refdiva = 1 and amoderefsel = 0)
* ndiv = ((chan_mhz * 4) / 3) / freq_ref;
* chansel = int(ndiv), chanfrac = (ndiv - chansel) * 0x20000
*/
if (AR_SREV_SCORPION(ah)) {
/* Doubler is off for Scorpion */
channel_sel = (freq * 4) / 120;
channel_frac = (((freq * 4) % 120) * 0x20000) / 120;
} else {
channel_sel = (freq * 2) / 120;
channel_frac = (((freq * 2) % 120) * 0x20000) / 120;
}
}
channel_sel = (channel_sel << 17) | (channel_frac);
} else {
channel_sel = CHANSEL_2G(freq);
}
} else {
b_mode = 0; /* 5 GHz */
if ((AR_SREV_WASP(ah) || AR_SREV_SCORPION(ah)) && clk_25mhz){
u_int32_t channel_frac;
/*
* freq_ref = (50 / (refdiva >> amoderefsel));
* (refdiva = 1, amoderefsel = 0)
* ndiv = ((chan_mhz * 2) / 3) / freq_ref;
* chansel = int(ndiv), chanfrac = (ndiv - chansel) * 0x20000
*/
channel_sel = freq / 75 ;
channel_frac = ((freq % 75) * 0x20000) / 75;
channel_sel = (channel_sel << 17) | (channel_frac);
} else {
channel_sel = CHANSEL_5G(freq);
/* Doubler is ON, so, divide channel_sel by 2. */
channel_sel >>= 1;
}
}
/* Enable fractional mode for all channels */
frac_mode = 1;
a_mode_ref_sel = 0;
load_synth_channel = 0;
reg32 = (b_mode << 29);
OS_REG_WRITE(ah, AR_PHY_SYNTH_CONTROL, reg32);
/* Enable Long shift Select for Synthesizer */
OS_REG_RMW_FIELD(ah,
AR_PHY_65NM_CH0_SYNTH4, AR_PHY_SYNTH4_LONG_SHIFT_SELECT, 1);
/* program synth. setting */
reg32 =
(channel_sel << 2) |
(a_mode_ref_sel << 28) |
(frac_mode << 30) |
(load_synth_channel << 31);
if (IEEE80211_IS_CHAN_QUARTER(chan)) {
reg32 += CHANSEL_5G_DOT5MHZ;
}
OS_REG_WRITE(ah, AR_PHY_65NM_CH0_SYNTH7, reg32);
/* Toggle Load Synth channel bit */
load_synth_channel = 1;
reg32 |= load_synth_channel << 31;
OS_REG_WRITE(ah, AR_PHY_65NM_CH0_SYNTH7, reg32);
AH_PRIVATE(ah)->ah_curchan = chan;
return AH_TRUE;
}
