src: port openBSC over libosmo-abis0.9.15

This is a big patch that ports openBSC over libosmo-abis.
Sorry, the changes that are included here are all dependent
of libosmo-abis, splitting them into smaller pieces would
leave the repository in some intermediate state, which is
not desired.

The main changes are:

- The directory libabis/ has been removed as it now lives in
  libosmo-abis.

- new configuration file format for nanoBTS and HSL femto, we
  need to define the virtual e1_line and attach it to the OML
  link.

- all the existing BTS drivers (nanoBTS, hsl femto, Nokia site,
  BS11 and rbs2000) now use the new libosmo-abis framework.

- use r232 input driver available in libosmo-abis for bs11_config.

- use ipa_msg_recv instead of old ipaccess_read_msg function.

- delete definition of gsm_e1_subslot and input_signal_data.
  These structures now lives in libosmo-abis.

Most of this patch are deletions of libabis/ which has been
moved to libosmo-abis.

This patch also modifies openBSC to use all the new definitions
available in libosmocore and libosmo-abis. In order to do that,
we have replaced the following:

- DINP, DMI, DMIB and DMUX by their respective DL* correspondences.
- SS_GLOBAL by SS_L_GLOBAL
- SS_INPUT by SS_L_INPUT
- S_GLOBAL_SHUTDOWN by S_L_GLOBAL_SHUTDOWN
- SS_INPUT by SS_L_INPUT
- S_INP_* by S_L_INP_* sub-signals
- E1INP_NODE by L_E1INP_NODE vty node

This patch has been tested with:
- one nanoBTS
- the HSL femto with the examples available under libosmo-abis
- BS11 with both dahdi and misdn drivers.

1 files changed, 20 insertions, 6 deletions

diff --git a/openbsc/src/libtrau/trau_mux.c b/openbsc/src/libtrau/trau_mux.c
index ab2787956..6a6b7c58d 100644
--- a/openbsc/src/libtrau/trau_mux.c
+++ b/openbsc/src/libtrau/trau_mux.c
@@ -23,10 +23,10 @@
 #include <string.h>
 
 #include <openbsc/gsm_data.h>
-#include <openbsc/trau_frame.h>
+#include <osmocom/abis/trau_frame.h>
 #include <openbsc/trau_mux.h>
-#include <openbsc/subchan_demux.h>
-#include <openbsc/e1_input.h>
+#include <osmocom/abis/subchan_demux.h>
+#include <osmocom/abis/e1_input.h>
 #include <openbsc/debug.h>
 #include <osmocom/core/talloc.h>
 
@@ -70,7 +70,7 @@ int trau_mux_map(const struct gsm_e1_subslot *src,
 
 	me = talloc(tall_map_ctx, struct map_entry);
 	if (!me) {
-		LOGP(DMIB, LOGL_FATAL, "Out of memory\n");
+		LOGP(DLMIB, LOGL_FATAL, "Out of memory\n");
 		return -ENOMEM;
 	}
 
@@ -186,7 +186,7 @@ int trau_mux_input(struct gsm_e1_subslot *src_e1_ss,
 		if (!ue->callref)
 			return -EINVAL;
 		if (memcmp(tf.c_bits, c_bits_check, sizeof(c_bits_check)))
-			DEBUGPC(DMUX, "illegal trau (C1-C5) %s\n",
+			DEBUGPC(DLMUX, "illegal trau (C1-C5) %s\n",
 				osmo_hexdump(tf.c_bits, sizeof(c_bits_check)));
 		msg = msgb_alloc(sizeof(struct gsm_data_frame) + 33,
 				 "GSM-DATA");
@@ -232,6 +232,20 @@ int trau_mux_input(struct gsm_e1_subslot *src_e1_ss,
 				   TRAU_FRAME_BITS);
 }
 
+/* callback when a TRAU frame was received */
+int subch_cb(struct subch_demux *dmx, int ch, uint8_t *data, int len,
+	     void *_priv)
+{
+	struct e1inp_ts *e1i_ts = _priv;
+	struct gsm_e1_subslot src_ss;
+
+	src_ss.e1_nr = e1i_ts->line->num;
+	src_ss.e1_ts = e1i_ts->num;
+	src_ss.e1_ts_ss = ch;
+
+	return trau_mux_input(&src_ss, data, len);
+}
+
 /* add receiver instance for lchan and callref */
 int trau_recv_lchan(struct gsm_lchan *lchan, uint32_t callref)
 {
@@ -301,7 +315,7 @@ int trau_send_frame(struct gsm_lchan *lchan, struct gsm_data_frame *frame)
 		}
 		break;
 	default:
-		DEBUGPC(DMUX, "unsupported message type %d\n",
+		DEBUGPC(DLMUX, "unsupported message type %d\n",
 			frame->msg_type);
 		return -EINVAL;
 	}