rsl: support for ericssons propritary SI13 format
Ericsson has introduced a propritary format to issue the S13 BCCH
information. Normally the system info type field for SI13 would
be encoded as 0x28. Ericsson encodes that field as 0x02 and ads
a bcch mapping parameter, (IEI=F2) This patch sets the BCCH mapping
to 0x00 (=BCCH Normal) statically (0xF200)
The new constands are added to libosmocore, see commit:
f0f9c8c29daaefbf9cff19177ade4a13ffb2e36c
Change-Id: Ie0900f9b810744172b3090ce1b0ef7b7a1132946
diff --git a/openbsc/src/libbsc/abis_rsl.c b/openbsc/src/libbsc/abis_rsl.c
index 36487c7..b7f7a75 100644
--- a/openbsc/src/libbsc/abis_rsl.c
+++ b/openbsc/src/libbsc/abis_rsl.c
@@ -237,8 +237,17 @@
init_dchan_hdr(dh, RSL_MT_BCCH_INFO);
dh->chan_nr = RSL_CHAN_BCCH;
- msgb_tv_put(msg, RSL_IE_SYSINFO_TYPE, type);
- msgb_tlv_put(msg, RSL_IE_FULL_BCCH_INFO, len, data);
+ if (trx->bts->type == GSM_BTS_TYPE_RBS2000
+ && type == RSL_SYSTEM_INFO_13) {
+ /* Ericsson proprietary encoding of SI13 */
+ msgb_tv_put(msg, RSL_IE_SYSINFO_TYPE, RSL_ERIC_SYSTEM_INFO_13);
+ msgb_tlv_put(msg, RSL_IE_FULL_BCCH_INFO, len, data);
+ msgb_tv_put(msg, RSL_IE_ERIC_BCCH_MAPPING, 0x00);
+ } else {
+ /* Normal encoding */
+ msgb_tv_put(msg, RSL_IE_SYSINFO_TYPE, type);
+ msgb_tlv_put(msg, RSL_IE_FULL_BCCH_INFO, len, data);
+ }
msg->dst = trx->rsl_link;