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osmo-bts-trx: Fix PCS1900 operation 

As the ARFCN numbers in DCS (1800) and PCS (1900) are not unique,
we need to specify the band in the upper bits of the ARFCN value before
calling gsm_arfcn2freq10().

Change-Id: I637b76bc1fc749eed8e364412d76606589991c02
This commit is contained in:
Mike McTernan 2016-08-04 15:59:43 +02:00 committed by Harald Welte
parent 4b76a323b3
commit b7cdd381d6
1 changed files with 12 additions and 2 deletions
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14
src/osmo-bts-trx/trx_if.c
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@ -288,11 +288,16 @@ int trx_if_cmd_setslot(struct trx_l1h *l1h, uint8_t tn, uint8_t type)
int trx_if_cmd_rxtune(struct trx_l1h *l1h, uint16_t arfcn)
{
struct phy_instance *pinst = l1h->phy_inst;
uint16_t freq10;
if (pinst->trx->bts->band == GSM_BAND_1900)
arfcn |= ARFCN_PCS;
freq10 = gsm_arfcn2freq10(arfcn, 1); /* RX = uplink */
if (freq10 == 0xffff) {
LOGP(DTRX, LOGL_ERROR, "Arfcn %d not defined.\n", arfcn);
LOGP(DTRX, LOGL_ERROR, "Arfcn %d not defined.\n",
arfcn & ~ARFCN_FLAG_MASK);
return -ENOTSUP;
}
@ -301,11 +306,16 @@ int trx_if_cmd_rxtune(struct trx_l1h *l1h, uint16_t arfcn)
int trx_if_cmd_txtune(struct trx_l1h *l1h, uint16_t arfcn)
{
struct phy_instance *pinst = l1h->phy_inst;
uint16_t freq10;
if (pinst->trx->bts->band == GSM_BAND_1900)
arfcn |= ARFCN_PCS;
freq10 = gsm_arfcn2freq10(arfcn, 0); /* TX = downlink */
if (freq10 == 0xffff) {
LOGP(DTRX, LOGL_ERROR, "Arfcn %d not defined.\n", arfcn);
LOGP(DTRX, LOGL_ERROR, "Arfcn %d not defined.\n",
arfcn & ~ARFCN_FLAG_MASK);
return -ENOTSUP;
}