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, 16 insertions, 10 deletions

diff --git a/openbsc/src/libbsc/bts_ericsson_rbs2000.c b/openbsc/src/libbsc/bts_ericsson_rbs2000.c
index 9c98a9fef..28e7df4cc 100644
--- a/openbsc/src/libbsc/bts_ericsson_rbs2000.c
+++ b/openbsc/src/libbsc/bts_ericsson_rbs2000.c
@@ -26,10 +26,10 @@
 #include <openbsc/gsm_data.h>
 #include <openbsc/abis_om2000.h>
 #include <openbsc/abis_nm.h>
-#include <openbsc/e1_input.h>
+#include <osmocom/abis/e1_input.h>
 #include <openbsc/signal.h>
 
-#include "../libabis/input/lapd.h"
+#include <osmocom/abis/lapd.h>
 
 static void bootstrap_om_bts(struct gsm_bts *bts)
 {
@@ -83,7 +83,7 @@ static int gbl_sig_cb(unsigned int subsys, unsigned int signal,
 {
 	struct gsm_bts *bts;
 
-	if (subsys != SS_GLOBAL)
+	if (subsys != SS_L_GLOBAL)
 		return 0;
 
 	switch (signal) {
@@ -103,11 +103,11 @@ static int inp_sig_cb(unsigned int subsys, unsigned int signal,
 {
 	struct input_signal_data *isd = signal_data;
 
-	if (subsys != SS_INPUT)
+	if (subsys != SS_L_INPUT)
 		return 0;
 
 	switch (signal) {
-	case S_INP_TEI_UP:
+	case S_L_INP_TEI_UP:
 		switch (isd->link_type) {
 		case E1INP_SIGN_OML:
 			if (isd->trx->bts->type != GSM_BTS_TYPE_RBS2000)
@@ -119,18 +119,18 @@ static int inp_sig_cb(unsigned int subsys, unsigned int signal,
 			break;
 		}
 		break;
-	case S_INP_LINE_INIT:
+	case S_L_INP_LINE_INIT:
 		/* Right now Ericsson RBS are only supported on DAHDI */
 		if (strcasecmp(isd->line->driver->name, "DAHDI"))
 			break;
 		start_sabm_in_line(isd->line, 1);
 		break;
-	case S_INP_LINE_ALARM:
+	case S_L_INP_LINE_ALARM:
 		if (strcasecmp(isd->line->driver->name, "DAHDI"))
 			break;
 		start_sabm_in_line(isd->line, 0);
 		break;
-	case S_INP_LINE_NOALARM:
+	case S_L_INP_LINE_NOALARM:
 		if (strcasecmp(isd->line->driver->name, "DAHDI"))
 			break;
 		start_sabm_in_line(isd->line, 1);
@@ -244,12 +244,18 @@ static void config_write_bts(struct vty *vty, struct gsm_bts *bts)
 
 static int bts_model_rbs2k_start(struct gsm_network *net);
 
+static void bts_model_rbs2k_e1line_bind_ops(struct e1inp_line *line)
+{
+	e1inp_line_bind_ops(line, &bts_isdn_e1inp_line_ops);
+}
+
 static struct gsm_bts_model model_rbs2k = {
 	.type = GSM_BTS_TYPE_RBS2000,
 	.name = "rbs2000",
 	.start = bts_model_rbs2k_start,
 	.oml_rcvmsg = &abis_om2k_rcvmsg,
 	.config_write_bts = &config_write_bts,
+	.e1line_bind_ops = &bts_model_rbs2k_e1line_bind_ops,
 };
 
 static int bts_model_rbs2k_start(struct gsm_network *net)
@@ -260,8 +266,8 @@ static int bts_model_rbs2k_start(struct gsm_network *net)
 	gsm_btsmodel_set_feature(&model_rbs2k, BTS_FEAT_HOPPING);
 	gsm_btsmodel_set_feature(&model_rbs2k, BTS_FEAT_HSCSD);
 
-	osmo_signal_register_handler(SS_INPUT, inp_sig_cb, NULL);
-	osmo_signal_register_handler(SS_GLOBAL, gbl_sig_cb, NULL);
+	osmo_signal_register_handler(SS_L_INPUT, inp_sig_cb, NULL);
+	osmo_signal_register_handler(SS_L_GLOBAL, gbl_sig_cb, NULL);
 	osmo_signal_register_handler(SS_NM, nm_sig_cb, NULL);
 
 	return 0;