aboutsummaryrefslogtreecommitdiffstats
path: root/openbsc/src/bts_ericsson_rbs2000.c
blob: ab2959107b1934544336f341657e5d8fe2ad5992 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
/* Ericsson RBS-2xxx specific code */

/* (C) 2011 by Harald Welte <laforge@gnumonks.org>
 *
 * All Rights Reserved
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

#include <sys/types.h>

#include <osmocore/tlv.h>

#include <openbsc/debug.h>
#include <openbsc/gsm_data.h>
#include <openbsc/abis_om2000.h>
#include <openbsc/e1_input.h>
#include <openbsc/signal.h>

#include "input/lapd.h"

static void bootstrap_om_bts(struct gsm_bts *bts)
{
	LOGP(DNM, LOGL_NOTICE, "bootstrapping OML for BTS %u\n", bts->nr);
	abis_om2k_tx_start_req(bts, &om2k_mo_cf);
	/* FIXME */
}

static void bootstrap_om_trx(struct gsm_bts_trx *trx)
{
	LOGP(DNM, LOGL_NOTICE, "bootstrapping OML for TRX %u/%u\n",
	     trx->bts->nr, trx->nr);
	/* FIXME */
}

static int shutdown_om(struct gsm_bts *bts)
{
	/* FIXME */
	return 0;
}


/* Tell LAPD to start start the SAP (send SABM requests) for all signalling
 * timeslots in this line */
static void start_sabm_in_line(struct e1inp_line *line, int start)
{
	struct e1inp_sign_link *link;
	int i;

	for (i = 0; i < ARRAY_SIZE(line->ts); i++) {
		struct e1inp_ts *ts = &line->ts[i];

		if (ts->type != E1INP_TS_TYPE_SIGN)
			continue;

		llist_for_each_entry(link, &ts->sign.sign_links, list) {
			if (start)
				lapd_sap_start(ts->driver.dahdi.lapd, link->tei, link->sapi);
			else
				lapd_sap_stop(ts->driver.dahdi.lapd, link->tei, link->sapi);
		}
	}
}

/* Callback function to be called every time we receive a signal from INPUT */
static int gbl_sig_cb(unsigned int subsys, unsigned int signal,
		      void *handler_data, void *signal_data)
{
	struct gsm_bts *bts;

	if (subsys != SS_GLOBAL)
		return 0;

	switch (signal) {
	case S_GLOBAL_BTS_CLOSE_OM:
		bts = signal_data;
		if (bts->type == GSM_BTS_TYPE_RBS2000)
			shutdown_om(signal_data);
		break;
	}

	return 0;
}

/* Callback function to be called every time we receive a signal from INPUT */
static int inp_sig_cb(unsigned int subsys, unsigned int signal,
		      void *handler_data, void *signal_data)
{
	struct input_signal_data *isd = signal_data;

	if (subsys != SS_INPUT)
		return 0;

	switch (signal) {
	case S_INP_TEI_UP:
		switch (isd->link_type) {
		case E1INP_SIGN_OML:
			if (isd->trx->bts->type != GSM_BTS_TYPE_RBS2000)
				break;
			if (isd->tei == isd->trx->bts->oml_tei)
				bootstrap_om_bts(isd->trx->bts);
			else
				bootstrap_om_trx(isd->trx);
			break;
		}
		break;
	case S_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:
		if (strcasecmp(isd->line->driver->name, "DAHDI"))
			break;
		start_sabm_in_line(isd->line, 0);
		break;
	case S_INP_LINE_NOALARM:
		if (strcasecmp(isd->line->driver->name, "DAHDI"))
			break;
		start_sabm_in_line(isd->line, 1);
		break;
	}

	return 0;
}

static void config_write_bts(struct vty *vty, struct gsm_bts *bts)
{
	abis_om2k_config_write_bts(vty, bts);
}

static struct gsm_bts_model model_rbs2k = {
	.type = GSM_BTS_TYPE_RBS2000,
	.name = "rbs2000",
	.oml_rcvmsg = &abis_om2k_rcvmsg,
	.config_write_bts = &config_write_bts,
};

int bts_model_rbs2k_init(void)
{
	model_rbs2k.features.data = &model_rbs2k._features_data[0];
	model_rbs2k.features.data_len = sizeof(model_rbs2k._features_data);

	gsm_btsmodel_set_feature(&model_rbs2k, BTS_FEAT_HOPPING);
	gsm_btsmodel_set_feature(&model_rbs2k, BTS_FEAT_HSCSD);

	register_signal_handler(SS_INPUT, inp_sig_cb, NULL);
	register_signal_handler(SS_GLOBAL, gbl_sig_cb, NULL);

	return gsm_bts_model_register(&model_rbs2k);
}