Merge branch 'nrw/litecell15-manufacture-oml-1db-step' into 'nrw/litecell15-next'

LC15: Manufacture-defined O&M message to set RF Max Power Reduction in 1 dB step.

This MR should have: *

See merge request !50

1 files changed, 44 insertions, 0 deletions

diff --git a/src/common/oml.c b/src/common/oml.c
index 06d0ba02..8fd6b926 100644
--- a/src/common/oml.c
+++ b/src/common/oml.c
@@ -1451,6 +1451,44 @@ static int oml_ipa_mo_set_attr(struct gsm_bts *bts, struct gsm_abis_mo *mo,
 	return rc;
 }
 
+#ifdef ENABLE_LC15BTS
+/* This function is a manufacture O&M message in order to set RF Max Power Reduction
+ * for the LC15 BTS in non-standard way, i.e. it is binary representation of 1 dB step
+ * rather than 2 dB step defined in TS 12.21.
+ * Radio Attribute message type, Radio Object Class, and RF Max Power Reduction attribute
+ * defined in TS 12.21 are re-used in this message*/
+static int oml_nrw_set_tx_max_pwr_red(struct gsm_bts_trx *trx, struct msgb *msg)
+{
+	struct abis_om_fom_hdr *foh = msgb_l3(msg);
+	struct tlv_parsed tp;
+	int rc;
+
+	abis_nm_debugp_foh(DOML, foh);
+	LOGP(DOML, LOGL_DEBUG, "RX Manufacture O&M message NM_MT_SET_RADIO_ATTR\n");
+
+	rc = oml_tlv_parse(&tp, foh->data, msgb_l3len(msg) - sizeof(*foh));
+	if (rc < 0)
+		return oml_fom_ack_nack(msg, NM_NACK_INCORR_STRUCT);
+
+	if (!TLVP_PRESENT(&tp, NM_ATT_RF_MAXPOWR_R))
+		return oml_fom_ack_nack(msg, NM_NACK_INCORR_STRUCT);
+
+	trx->max_power_red = *TLVP_VAL(&tp, NM_ATT_RF_MAXPOWR_R);
+	if (trx->max_power_red > trx->nominal_power) {
+		LOGP(DOML, LOGL_ERROR, "RF Max Power Reduction = %d dB is out of range. It must be in between [0..%d] dB\n",
+				trx->max_power_red,
+				trx->nominal_power);
+		return oml_fom_ack_nack(msg, NM_NACK_PARAM_RANGE);
+	}
+
+	LOGP(DOML, LOGL_INFO, " Set RF Max Power Reduction = %d dB\n",
+			trx->max_power_red);
+
+	/* call into BTS driver to apply new Tx power reduction to hardware */
+	return bts_model_apply_oml(trx->bts, msg, NULL, NM_OC_RADIO_CARRIER, trx);
+}
+#endif
+
 static int oml_ipa_set_attr(struct gsm_bts *bts, struct msgb *msg)
 {
 	struct abis_om_fom_hdr *foh = msgb_l3(msg);
@@ -1556,6 +1594,12 @@ static int down_mom(struct gsm_bts *bts, struct msgb *msg)
 	case NM_MT_IPACC_SET_ATTR:
 		ret = oml_ipa_set_attr(bts, msg);
 		break;
+#ifdef ENABLE_LC15BTS
+	case NM_MT_SET_RADIO_ATTR:
+		trx = gsm_bts_trx_num(bts, foh->obj_inst.trx_nr);
+		ret = oml_nrw_set_tx_max_pwr_red(trx, msg);
+		break;
+#endif
 	default:
 		LOGP(DOML, LOGL_INFO, "Manufacturer Formatted O&M msg_type 0x%02x\n",
 			foh->msg_type);