int wlc_stf_ant_txant_validate(struct wlc_info *wlc, s8 val)
{
int bcmerror = BCME_OK;
/* when there is only 1 tx_streams, don't allow to change the txant */
if (WLCISNPHY(wlc->band) && (wlc->stf->txstreams == 1))
return ((val == wlc->stf->txant) ? bcmerror : BCME_RANGE);
switch (val) {
case -1:
val = ANT_TX_DEF;
break;
case 0:
val = ANT_TX_FORCE_0;
break;
case 1:
val = ANT_TX_FORCE_1;
break;
case 3:
val = ANT_TX_LAST_RX;
break;
default:
bcmerror = BCME_RANGE;
break;
}
if (bcmerror == BCME_OK)
wlc->stf->txant = (s8) val;
return bcmerror;
}
u16 wlc_stf_d11hdrs_phyctl_txant(struct wlc_info *wlc, ratespec_t rspec)
{
u16 phytxant = wlc->stf->phytxant;
u16 mask = PHY_TXC_ANT_MASK;
/* for non-siso rates or default setting, use the available chains */
if (WLCISNPHY(wlc->band)) {
ASSERT(wlc->stf->txchain != 0);
phytxant = _wlc_stf_phytxchain_sel(wlc, rspec);
mask = PHY_TXC_HTANT_MASK;
}
phytxant |= phytxant & mask;
return phytxant;
}
void wlc_stf_phy_chain_calc(struct wlc_info *wlc)
{
/* get available rx/tx chains */
wlc->stf->hw_txchain = (u8) getintvar(wlc->pub->vars, "txchain");
wlc->stf->hw_rxchain = (u8) getintvar(wlc->pub->vars, "rxchain");
/* these parameter are intended to be used for all PHY types */
if (wlc->stf->hw_txchain == 0 || wlc->stf->hw_txchain == 0xf) {
if (WLCISNPHY(wlc->band)) {
wlc->stf->hw_txchain = TXCHAIN_DEF_NPHY;
} else {
wlc->stf->hw_txchain = TXCHAIN_DEF;
}
}
wlc->stf->txchain = wlc->stf->hw_txchain;
wlc->stf->txstreams = (u8) WLC_BITSCNT(wlc->stf->hw_txchain);
if (wlc->stf->hw_rxchain == 0 || wlc->stf->hw_rxchain == 0xf) {
if (WLCISNPHY(wlc->band)) {
wlc->stf->hw_rxchain = RXCHAIN_DEF_NPHY;
} else {
wlc->stf->hw_rxchain = RXCHAIN_DEF;
}
}
wlc->stf->rxchain = wlc->stf->hw_rxchain;
wlc->stf->rxstreams = (u8) WLC_BITSCNT(wlc->stf->hw_rxchain);
/* initialize the txcore table */
bcopy(txcore_default, wlc->stf->txcore, sizeof(wlc->stf->txcore));
/* default spatial_policy */
wlc->stf->spatial_policy = MIN_SPATIAL_EXPANSION;
wlc_stf_spatial_policy_set(wlc, MIN_SPATIAL_EXPANSION);
}
/*
* Centralized txant update function. call it whenever wlc->stf->txant and/or wlc->stf->txchain
* change
*
* Antennas are controlled by ucode indirectly, which drives PHY or GPIO to
* achieve various tx/rx antenna selection schemes
*
* legacy phy, bit 6 and bit 7 means antenna 0 and 1 respectively, bit6+bit7 means auto(last rx)
* for NREV<3, bit 6 and bit 7 means antenna 0 and 1 respectively, bit6+bit7 means last rx and
* do tx-antenna selection for SISO transmissions
* for NREV=3, bit 6 and bit _8_ means antenna 0 and 1 respectively, bit6+bit7 means last rx and
* do tx-antenna selection for SISO transmissions
* for NREV>=7, bit 6 and bit 7 mean antenna 0 and 1 respectively, nit6+bit7 means both cores active
*/
static void _wlc_stf_phy_txant_upd(struct wlc_info *wlc)
{
s8 txant;
txant = (s8) wlc->stf->txant;
ASSERT(txant == ANT_TX_FORCE_0 || txant == ANT_TX_FORCE_1
|| txant == ANT_TX_LAST_RX);
if (WLC_PHY_11N_CAP(wlc->band)) {
if (txant == ANT_TX_FORCE_0) {
wlc->stf->phytxant = PHY_TXC_ANT_0;
} else if (txant == ANT_TX_FORCE_1) {
wlc->stf->phytxant = PHY_TXC_ANT_1;
if (WLCISNPHY(wlc->band) &&
NREV_GE(wlc->band->phyrev, 3)
&& NREV_LT(wlc->band->phyrev, 7)) {
wlc->stf->phytxant = PHY_TXC_ANT_2;
}
} else {
if (WLCISLCNPHY(wlc->band) || WLCISSSLPNPHY(wlc->band))
wlc->stf->phytxant = PHY_TXC_LCNPHY_ANT_LAST;
else {
/* keep this assert to catch out of sync wlc->stf->txcore */
ASSERT(wlc->stf->txchain > 0);
wlc->stf->phytxant =
wlc->stf->txchain << PHY_TXC_ANT_SHIFT;
}
}
} else {
if (txant == ANT_TX_FORCE_0)
wlc->stf->phytxant = PHY_TXC_OLD_ANT_0;
else if (txant == ANT_TX_FORCE_1)
wlc->stf->phytxant = PHY_TXC_OLD_ANT_1;
else
wlc->stf->phytxant = PHY_TXC_OLD_ANT_LAST;
}
wlc_bmac_txant_set(wlc->hw, wlc->stf->phytxant);
}
int wlc_stf_attach(struct wlc_info *wlc)
{
wlc->bandstate[BAND_2G_INDEX]->band_stf_ss_mode = PHY_TXC1_MODE_SISO;
wlc->bandstate[BAND_5G_INDEX]->band_stf_ss_mode = PHY_TXC1_MODE_CDD;
if (WLCISNPHY(wlc->band) &&
(wlc_phy_txpower_hw_ctrl_get(wlc->band->pi) != PHY_TPC_HW_ON))
wlc->bandstate[BAND_2G_INDEX]->band_stf_ss_mode =
PHY_TXC1_MODE_CDD;
wlc_stf_ss_update(wlc, wlc->bandstate[BAND_2G_INDEX]);
wlc_stf_ss_update(wlc, wlc->bandstate[BAND_5G_INDEX]);
wlc_stf_stbc_rx_ht_update(wlc, HT_CAP_RX_STBC_NO);
wlc->bandstate[BAND_2G_INDEX]->band_stf_stbc_tx = OFF;
wlc->bandstate[BAND_5G_INDEX]->band_stf_stbc_tx = OFF;
if (WLC_STBC_CAP_PHY(wlc)) {
wlc->stf->ss_algosel_auto = true;
wlc->stf->ss_algo_channel = (u16) -1; /* Init the default value */
}
return 0;
}
/*
* Validate the chanspec for this locale, for 40MHZ we need to also check that the sidebands
* are valid 20MZH channels in this locale and they are also a legal HT combination
*/
static bool
wlc_valid_chanspec_ext(wlc_cm_info_t *wlc_cm, chanspec_t chspec, bool dualband)
{
struct wlc_info *wlc = wlc_cm->wlc;
u8 channel = CHSPEC_CHANNEL(chspec);
/* check the chanspec */
if (wf_chspec_malformed(chspec)) {
WL_ERROR("wl%d: malformed chanspec 0x%x\n",
wlc->pub->unit, chspec);
ASSERT(0);
return false;
}
if (CHANNEL_BANDUNIT(wlc_cm->wlc, channel) !=
CHSPEC_WLCBANDUNIT(chspec))
return false;
/* Check a 20Mhz channel */
if (CHSPEC_IS20(chspec)) {
if (dualband)
return VALID_CHANNEL20_DB(wlc_cm->wlc, channel);
else
return VALID_CHANNEL20(wlc_cm->wlc, channel);
}
#ifdef SUPPORT_40MHZ
/* We know we are now checking a 40MHZ channel, so we should only be here
* for NPHYS
*/
if (WLCISNPHY(wlc->band) || WLCISSSLPNPHY(wlc->band)) {
u8 upper_sideband = 0, idx;
u8 num_ch20_entries =
sizeof(chan20_info) / sizeof(struct chan20_info);
if (!VALID_40CHANSPEC_IN_BAND(wlc, CHSPEC_WLCBANDUNIT(chspec)))
return false;
if (dualband) {
if (!VALID_CHANNEL20_DB(wlc, LOWER_20_SB(channel)) ||
!VALID_CHANNEL20_DB(wlc, UPPER_20_SB(channel)))
return false;
} else {
if (!VALID_CHANNEL20(wlc, LOWER_20_SB(channel)) ||
!VALID_CHANNEL20(wlc, UPPER_20_SB(channel)))
return false;
}
/* find the lower sideband info in the sideband array */
for (idx = 0; idx < num_ch20_entries; idx++) {
if (chan20_info[idx].sb == LOWER_20_SB(channel))
upper_sideband = chan20_info[idx].adj_sbs;
}
/* check that the lower sideband allows an upper sideband */
if ((upper_sideband & (CH_UPPER_SB | CH_EWA_VALID)) ==
(CH_UPPER_SB | CH_EWA_VALID))
return true;
return false;
}
#endif /* 40 MHZ */
return false;
}
