jolly has uploaded this change for review. (
https://gerrit.osmocom.org/c/osmo-bsc/+/33616 )
Change subject: ASCI: Add support for reception of TALKER/LISTENER DETECTION
......................................................................
ASCI: Add support for reception of TALKER/LISTENER DETECTION
TALKER DETECTION and LISTENER DETECTION is used when the uplink is
accessed on the VGCS channel by a talker or listener.
Change-Id: I166d6d42c04337e669307943ecbb8eea6906b385
Related: OS#4852
---
M src/osmo-bsc/abis_rsl.c
1 file changed, 79 insertions(+), 2 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/osmo-bsc refs/changes/16/33616/1
diff --git a/src/osmo-bsc/abis_rsl.c b/src/osmo-bsc/abis_rsl.c
index fcc6f51..5edcd8b 100644
--- a/src/osmo-bsc/abis_rsl.c
+++ b/src/osmo-bsc/abis_rsl.c
@@ -1544,6 +1544,66 @@
return 0;
}
+/* Chapter 8.4.21: TALKER DETECTION */
+static int rsl_rx_talker_det(struct msgb *msg)
+{
+ struct abis_rsl_dchan_hdr *dh = msgb_l2(msg);
+ struct tlv_parsed tp;
+ /* We use this struct, because it has same data. */
+ struct handover_rr_detect_data d = {
+ .msg = msg,
+ };
+
+ if (rsl_tlv_parse(&tp, dh->data, msgb_l2len(msg) - sizeof(*dh)) < 0) {
+ LOG_LCHAN(msg->lchan, LOGL_ERROR, "Failed to parse RSL %s\n",
+ rsl_or_ipac_msg_name(dh->c.msg_type));
+ return -EINVAL;
+ }
+
+ if (TLVP_PRESENT(&tp, RSL_IE_ACCESS_DELAY))
+ d.access_delay = TLVP_VAL(&tp, RSL_IE_ACCESS_DELAY);
+
+ if (!msg->lchan->conn || !msg->lchan->conn->vgcs_chan.fi) {
+ LOGP(DRSL, LOGL_ERROR, "%s TALKER DETECTION but no VGCS
channel\n",
+ gsm_lchan_name(msg->lchan));
+ return 0;
+ }
+
+ osmo_fsm_inst_dispatch(msg->lchan->conn->vgcs_chan.fi,
VGCS_EV_TALKER_DET, &d);
+
+ return 0;
+}
+
+/* Chapter 8.4.22: LISTENER DETECTION */
+static int rsl_rx_listener_det(struct msgb *msg)
+{
+ struct abis_rsl_dchan_hdr *dh = msgb_l2(msg);
+ struct tlv_parsed tp;
+ /* We use this struct, because it has same data. */
+ struct handover_rr_detect_data d = {
+ .msg = msg,
+ };
+
+ if (rsl_tlv_parse(&tp, dh->data, msgb_l2len(msg) - sizeof(*dh)) < 0) {
+ LOG_LCHAN(msg->lchan, LOGL_ERROR, "Failed to parse RSL %s\n",
+ rsl_or_ipac_msg_name(dh->c.msg_type));
+ return -EINVAL;
+ }
+
+ if (TLVP_PRESENT(&tp, RSL_IE_ACCESS_DELAY))
+ d.access_delay = TLVP_VAL(&tp, RSL_IE_ACCESS_DELAY);
+
+ if (!msg->lchan->conn || !msg->lchan->conn->vgcs_chan.fi) {
+ LOGP(DRSL, LOGL_ERROR, "%s LISTENER DETECTION but no VGCS
channel\n",
+ gsm_lchan_name(msg->lchan));
+ return 0;
+ }
+
+ osmo_fsm_inst_dispatch(msg->lchan->conn->vgcs_chan.fi,
VGCS_EV_LISTENER_DET, &d);
+
+ return 0;
+}
+
static int rsl_rx_ipacc_pdch(struct msgb *msg, char *name, uint32_t ts_ev)
{
struct gsm_bts_trx_ts *ts = msg->lchan->ts;
@@ -1611,6 +1671,12 @@
case RSL_MT_HANDO_DET:
rc = rsl_rx_hando_det(msg);
break;
+ case RSL_MT_TALKER_DET:
+ rc = rsl_rx_talker_det(msg);
+ break;
+ case RSL_MT_LISTENER_DET:
+ rc = rsl_rx_listener_det(msg);
+ break;
case RSL_MT_RF_CHAN_REL_ACK:
if (msg_for_osmocom_dyn_ts(msg))
osmo_fsm_inst_dispatch(msg->lchan->ts->fi,
TS_EV_PDCH_DEACT_ACK, NULL);
@@ -1641,8 +1707,6 @@
break;
case RSL_MT_PHY_CONTEXT_CONF:
case RSL_MT_PREPROC_MEAS_RES:
- case RSL_MT_TALKER_DET:
- case RSL_MT_LISTENER_DET:
case RSL_MT_REMOTE_CODEC_CONF_REP:
case RSL_MT_MR_CODEC_MOD_ACK:
case RSL_MT_MR_CODEC_MOD_NACK:
--
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Gerrit-Project: osmo-bsc
Gerrit-Branch: master
Gerrit-Change-Id: I166d6d42c04337e669307943ecbb8eea6906b385
Gerrit-Change-Number: 33616
Gerrit-PatchSet: 1
Gerrit-Owner: jolly <[email protected]>
Gerrit-MessageType: newchange
