send DEACTIVATE SACCH when sending RR CHANEL RELEASE
As per specification, we first send the RR CHANNEL RELEASE to the MS,
and then tell the BTS to disable the SACCH on that channel.
diff --git a/openbsc/src/abis_rsl.c b/openbsc/src/abis_rsl.c
index df95e79..cc4a229 100644
--- a/openbsc/src/abis_rsl.c
+++ b/openbsc/src/abis_rsl.c
@@ -652,6 +652,25 @@
return abis_rsl_sendmsg(msg);
}
+/* Chapter 8.4.5 */
+int rsl_deact_sacch(struct gsm_lchan *lchan)
+{
+ struct abis_rsl_dchan_hdr *dh;
+ struct msgb *msg = rsl_msgb_alloc();
+
+ dh = (struct abis_rsl_dchan_hdr *) msgb_put(msg, sizeof(*dh));
+ init_dchan_hdr(dh, RSL_MT_DEACTIVATE_SACCH);
+ dh->chan_nr = lchan2chan_nr(lchan);
+
+ msg->lchan = lchan;
+ msg->trx = lchan->ts->trx;
+
+ DEBUGP(DRSL, "DEACTivate SACCH CMD channel=%s chan_nr=0x%02x\n",
+ gsm_ts_name(lchan->ts), dh->chan_nr);
+
+ return abis_rsl_sendmsg(msg);
+}
+
/* Chapter 9.1.7 of 04.08 */
int rsl_chan_release(struct gsm_lchan *lchan)
{