Add MEAS (MPH_INFO) IND message to PH-/MPH-/TCH-SAP interface

This part moves processing of measurement infos from osmo-bts-sysmo to
common part.

2 files changed, 45 insertions, 13 deletions

diff --git a/src/common/l1sap.c b/src/common/l1sap.c
index d165639a..b9d5a2d0 100644
--- a/src/common/l1sap.c
+++ b/src/common/l1sap.c
@@ -155,6 +155,35 @@ static int l1sap_info_time_ind(struct gsm_bts_trx *trx,
 	return 0;
 }
 
+/* measurement information received from bts model */
+static int l1sap_info_meas_ind(struct gsm_bts_trx *trx,
+	struct osmo_phsap_prim *l1sap,
+	struct info_meas_ind_param *info_meas_ind)
+{
+	struct bts_ul_meas ulm;
+	struct gsm_lchan *lchan;
+
+	DEBUGP(DL1P, "MPH_INFO meas ind chan_nr=%02x\n",
+		info_meas_ind->chan_nr);
+
+	lchan = &trx->ts[L1SAP_CHAN2TS(info_meas_ind->chan_nr)]
+				.lchan[l1sap_chan2ss(info_meas_ind->chan_nr)];
+
+	/* in the GPRS case we are not interested in measurement
+	 * processing.  The PCU will take care of it */
+	if (lchan->type == GSM_LCHAN_PDTCH)
+		return 0;
+
+	memset(&ulm, 0, sizeof(ulm));
+	ulm.ta_offs_qbits = info_meas_ind->ta_offs_qbits;
+	ulm.ber10k = info_meas_ind->ber10k;
+	ulm.inv_rssi = info_meas_ind->inv_rssi;
+
+	lchan_new_ul_meas(lchan, &ulm);
+
+	return 0;
+}
+
 /* any L1 MPH_INFO indication prim recevied from bts model */
 static int l1sap_mph_info_ind(struct gsm_bts_trx *trx,
 	 struct osmo_phsap_prim *l1sap, struct mph_info_param *info)
@@ -165,6 +194,9 @@ static int l1sap_mph_info_ind(struct gsm_bts_trx *trx,
 	case PRIM_INFO_TIME:
 		rc = l1sap_info_time_ind(trx, l1sap, &info->u.time_ind);
 		break;
+	case PRIM_INFO_MEAS:
+		rc = l1sap_info_meas_ind(trx, l1sap, &info->u.meas_ind);
+		break;
 	default:
 		LOGP(DL1P, LOGL_NOTICE, "unknown MPH_INFO ind type %d\n",
 			info->type);
diff --git a/src/osmo-bts-sysmo/l1_if.c b/src/osmo-bts-sysmo/l1_if.c
index 30eb2669..810ec6d4 100644
--- a/src/osmo-bts-sysmo/l1_if.c
+++ b/src/osmo-bts-sysmo/l1_if.c
@@ -908,20 +908,20 @@ static void dump_meas_res(int ll, GsmL1_MeasParam_t *m)
 		m->fBer, m->i16BurstTiming);
 }
 
-static int process_meas_res(struct gsm_lchan *lchan, GsmL1_MeasParam_t *m)
+static int process_meas_res(struct gsm_bts_trx *trx, uint8_t chan_nr,
+				GsmL1_MeasParam_t *m)
 {
-	struct bts_ul_meas ulm;
-
-	/* in the GPRS case we are not interested in measurement
-	 * processing.  The PCU will take care of it */
-	if (lchan->type == GSM_LCHAN_PDTCH)
-		return 0;
-
-	ulm.ta_offs_qbits = m->i16BurstTiming;
-	ulm.ber10k = (unsigned int) (m->fBer * 100);
-	ulm.inv_rssi = (uint8_t) (m->fRssi * -1);
+	struct osmo_phsap_prim l1sap;
+	memset(&l1sap, 0, sizeof(l1sap));
+	osmo_prim_init(&l1sap.oph, SAP_GSM_PH, PRIM_MPH_INFO,
+		PRIM_OP_INDICATION, NULL);
+	l1sap.u.info.type = PRIM_INFO_MEAS;
+	l1sap.u.info.u.meas_ind.chan_nr = chan_nr;
+	l1sap.u.info.u.meas_ind.ta_offs_qbits = m->i16BurstTiming;
+	l1sap.u.info.u.meas_ind.ber10k = (unsigned int) (m->fBer * 100);
+	l1sap.u.info.u.meas_ind.inv_rssi = (uint8_t) (m->fRssi * -1);
 
-	return lchan_new_ul_meas(lchan, &ulm);
+	return l1sap_up(trx, &l1sap);
 }
 
 static int handle_ph_data_ind(struct femtol1_hdl *fl1, GsmL1_PhDataInd_t *data_ind,
@@ -957,7 +957,7 @@ static int handle_ph_data_ind(struct femtol1_hdl *fl1, GsmL1_PhDataInd_t *data_i
 	fn = data_ind->u32Fn;
 	link_id =  (data_ind->sapi == GsmL1_Sapi_Sacch) ? 0x40 : 0x00;
 
-	process_meas_res(lchan, &data_ind->measParam);
+	process_meas_res(trx, chan_nr, &data_ind->measParam);
 
 	if (data_ind->measParam.fLinkQuality < fl1->min_qual_norm
 	 && data_ind->msgUnitParam.u8Size != 0) {