support for Ericsson RBS E1 CCU
Ericsson RBS series BTSs do not have a built in PCU. Rather than having
the PCU on board the PCU is co-located to the BSC in those cases. Just
like the MGW the PCU would connect to the CCU (Channel Coding Unit) via
E1 line. The PCU is connected via an unix domain socket (pcu_sock) to
the BSC to receive RACH requests and to control Paging and TBF assignment.
This patch adds all the required functionality to run an Ercisson RBS in
GPRS/EGPRS mode. It supports 16k I.460 E1 subslots and full 64k E1
timeslots (recommended)
Change-Id: I5c0a76667339ca984a12cbd2052f5d9e5b0f9c4d
Related: OS#5198
diff --git a/src/ericsson-rbs/er_ccu_if.h b/src/ericsson-rbs/er_ccu_if.h
new file mode 100644
index 0000000..4073530
--- /dev/null
+++ b/src/ericsson-rbs/er_ccu_if.h
@@ -0,0 +1,10 @@
+#pragma once
+
+#include <stdint.h>
+#include <osmocom/abis/e1_input.h>
+#include "er_ccu_descr.h"
+
+int er_ccu_if_open(struct er_ccu_descr *ccu_descr);
+void er_ccu_if_close(struct er_ccu_descr *ccu_descr);
+void er_ccu_if_tx(struct er_ccu_descr *ccu_descr, const ubit_t *bits, unsigned int num_bits);
+void er_ccu_if_init(void *ctx);