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RSL: BS-11 reports TA in quarter-bits, not full bits. 

We need to compensate accordingly...
This commit is contained in:
Andreas Eversberg 2011-12-16 17:45:37 +01:00 committed by Harald Welte
parent 1c5dd2c9bb
commit 2957de9228
1 changed files with 11 additions and 4 deletions
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15
openbsc/src/libbsc/abis_rsl.c
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@ -1008,6 +1008,9 @@ static int rsl_rx_meas_res(struct msgb *msg)
if (val[0] & 0x04)
mr->flags |= MEAS_REP_F_FPC;
mr->ms_l1.ta = val[1];
/* BS11 reports TA shifted by 2 bits */
if (msg->lchan->ts->trx->bts->type == GSM_BTS_TYPE_BS11)
mr->ms_l1.ta >>= 2;
}
if (TLVP_PRESENT(&tp, RSL_IE_L3_INFO)) {
msg->l3h = (uint8_t *) TLVP_VAL(&tp, RSL_IE_L3_INFO);
@ -1307,12 +1310,16 @@ static int rsl_rx_chan_rqd(struct msgb *msg)
lchan->act_timer.data = lchan;
osmo_timer_schedule(&lchan->act_timer, 4, 0);
DEBUGP(DRSL, "%s Activating ARFCN(%u) SS(%u) lctype %s "
"r=%s ra=0x%02x ta=%d\n", gsm_lchan_name(lchan), arfcn, subch,
gsm_lchant_name(lchan->type), gsm_chreq_name(chreq_reason),
rqd_ref->ra, rqd_ta);
/* BS11 requires TA shifted by 2 bits */
if (bts->type == GSM_BTS_TYPE_BS11)
rqd_ta <<= 2;
rsl_chan_activate_lchan(lchan, 0x00, rqd_ta, 0);
DEBUGP(DRSL, "%s Activating ARFCN(%u) SS(%u) lctype %s "
"r=%s ra=0x%02x\n", gsm_lchan_name(lchan), arfcn, subch,
gsm_lchant_name(lchan->type), gsm_chreq_name(chreq_reason),
rqd_ref->ra);
return 0;
}