OM2000: Send ALTCRQ for SuperChannel after receiving IS Enable Req Ack
When the BTS is configured to use a SuperChannel and it is using a
unix domain socket based transport towards the L2TP daemon, then
we must instruct the L2TP daemon to instruct the SIU to change the Abis
Lower Transport Mode using the ALTCRQ / ALTCRP L2TP signalling.
Change-Id: I672bfaa09c42fbeb0c8459f24b2222b952de954b
diff --git a/openbsc/include/openbsc/gsm_data_shared.h b/openbsc/include/openbsc/gsm_data_shared.h
index e697cb8..06fa8dd 100644
--- a/openbsc/include/openbsc/gsm_data_shared.h
+++ b/openbsc/include/openbsc/gsm_data_shared.h
@@ -729,6 +729,7 @@
struct om2k_mo om2k_mo;
struct gsm_abis_mo mo;
} tf;
+ uint32_t use_superchannel:1;
} rbs2000;
struct {
uint8_t bts_type;
diff --git a/openbsc/src/libbsc/abis_om2000.c b/openbsc/src/libbsc/abis_om2000.c
index 1fb7689..9bf0fe2 100644
--- a/openbsc/src/libbsc/abis_om2000.c
+++ b/openbsc/src/libbsc/abis_om2000.c
@@ -1654,6 +1654,7 @@
static void om2k_mo_st_wait_enable_accept(struct osmo_fsm_inst *fi, uint32_t event, void *data)
{
+ struct om2k_mo_fsm_priv *omfp = fi->priv;
struct om2k_decoded_msg *omd = data;
switch (omd->msg_type) {
@@ -1661,6 +1662,9 @@
osmo_fsm_inst_state_chg(fi, OM2K_ST_ERROR, 0, 0);
break;
case OM2K_MSGT_ENABLE_REQ_ACK:
+ if (omfp->mo->addr.class == OM2K_MO_CLS_IS &&
+ omfp->trx->bts->rbs2000.use_superchannel)
+ e1inp_ericsson_set_altc(omfp->trx->bts->oml_link->ts->line, 1);
osmo_fsm_inst_state_chg(fi, OM2K_ST_WAIT_ENABLE_RES,
OM2K_TIMEOUT, 0);
}
diff --git a/openbsc/src/libbsc/abis_om2000_vty.c b/openbsc/src/libbsc/abis_om2000_vty.c
index 060fb8b..a6bc4c7 100644
--- a/openbsc/src/libbsc/abis_om2000_vty.c
+++ b/openbsc/src/libbsc/abis_om2000_vty.c
@@ -417,6 +417,29 @@
return CMD_SUCCESS;
}
+DEFUN(cfg_bts_alt_mode, cfg_bts_alt_mode_cmd,
+ "abis-lower-transport (single-timeslot|super-channel)",
+ "Configure thee Abis Lower Transport\n"
+ "Single Timeslot (classic Abis)\n"
+ "SuperChannel (Packet Abis)\n")
+{
+ struct gsm_bts *bts = vty->index;
+ struct con_group *cg;
+
+ if (bts->type != GSM_BTS_TYPE_RBS2000) {
+ vty_out(vty, "%% Command only works for RBS2000%s",
+ VTY_NEWLINE);
+ return CMD_WARNING;
+ }
+
+ if (!strcmp(argv[0], "super-channel"))
+ bts->rbs2000.use_superchannel = 1;
+ else
+ bts->rbs2000.use_superchannel = 0;
+
+ return CMD_SUCCESS;
+}
+
DEFUN(cfg_bts_is_conn_list, cfg_bts_is_conn_list_cmd,
"is-connection-list (add|del) <0-2047> <0-2047> <0-255>",
"Interface Switch Connection List\n"
@@ -548,6 +571,9 @@
VTY_NEWLINE);
dump_con_group(vty, cgrp);
}
+ if (bts->rbs2000.use_superchannel)
+ vty_out(vty, " abis-lower-transport super-channel%s",
+ VTY_NEWLINE);
}
int abis_om2k_vty_init(void)
@@ -575,6 +601,7 @@
install_element(OM2K_CON_GROUP_NODE, &cfg_om2k_con_path_conc_cmd);
install_element(BTS_NODE, &cfg_bts_is_conn_list_cmd);
+ install_element(BTS_NODE, &cfg_bts_alt_mode_cmd);
install_element(BTS_NODE, &cfg_om2k_con_group_cmd);
install_element(BTS_NODE, &del_om2k_con_group_cmd);