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BS-11: Send proprietary MRPCI message after assignment + HO complete 

This is a non-standard RSL message that must be sent after each traffic
channel has been established.  Without it, any voice call will be
disconnected within seconds.

This is a hack; we need to store the subscribers classmark2 value and
use it here.

Change-Id: I6cb6d25e405aa888c4df4022d897330a6af9e946
Related: OS#2389
This commit is contained in:
Harald Welte 2020-08-01 17:03:31 +02:00 committed by Harald Welte
parent 2428bab7c0
commit 34363908b1
2 changed files with 19 additions and 0 deletions
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10
src/osmo-bsc/assignment_fsm.c
View File

@ -32,6 +32,7 @@
#include <osmocom/bsc/osmo_bsc_lcls.h>
#include <osmocom/bsc/bsc_msc_data.h>
#include <osmocom/bsc/gsm_08_08.h>
#include <osmocom/bsc/gsm_04_08_rr.h>
#include <osmocom/bsc/lchan_select.h>
#include <osmocom/bsc/abis_rsl.h>
#include <osmocom/bsc/bts.h>
@ -224,10 +225,19 @@ static void send_assignment_complete(struct gsm_subscriber_connection *conn)
static void assignment_success(struct gsm_subscriber_connection *conn)
{
struct gsm_bts *bts;
/* Take on the new lchan */
gscon_change_primary_lchan(conn, conn->assignment.new_lchan);
conn->assignment.new_lchan = NULL;
bts = conn_get_bts(conn);
if (is_siemens_bts(bts) && ts_is_tch(conn->lchan->ts)) {
/* HACK: store the actual Classmark 2 LV from the subscriber and use it here! */
uint8_t cm2_lv[] = { 0x02, 0x00, 0x00 };
send_siemens_mrpci(conn->lchan, cm2_lv);
}
/* apply LCLS configuration (if any) */
lcls_apply_config(conn);

9
src/osmo-bsc/handover_fsm.c
View File

@ -863,8 +863,17 @@ void handover_end(struct gsm_subscriber_connection *conn, enum handover_result r
LOG_HO(conn, LOGL_INFO, "Result: %s\n", handover_result_name(result));
if (ho->new_lchan && result == HO_RESULT_OK) {
struct gsm_bts *bts;
gscon_change_primary_lchan(conn, conn->ho.new_lchan);
ho->new_lchan = NULL;
bts = conn_get_bts(conn);
if (is_siemens_bts(bts) && ts_is_tch(conn->lchan->ts)) {
/* HACK: store the actual Classmark 2 LV from the subscriber and use it here! */
uint8_t cm2_lv[] = { 0x02, 0x00, 0x00 };
send_siemens_mrpci(conn->lchan, cm2_lv);
}
}
osmo_fsm_inst_dispatch(conn->fi, GSCON_EV_HANDOVER_END, &result);