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-rw-r--r--openbsc/src/gsm_data.c209
1 files changed, 209 insertions, 0 deletions
diff --git a/openbsc/src/gsm_data.c b/openbsc/src/gsm_data.c
new file mode 100644
index 000000000..a78425f95
--- /dev/null
+++ b/openbsc/src/gsm_data.c
@@ -0,0 +1,209 @@
+/* (C) 2008-2009 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 General Public License as published by
+ * the Free Software Foundation; either version 2 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <openbsc/gsm_data.h>
+
+void set_ts_e1link(struct gsm_bts_trx_ts *ts, u_int8_t e1_nr,
+ u_int8_t e1_ts, u_int8_t e1_ts_ss)
+{
+ ts->e1_link.e1_nr = e1_nr;
+ ts->e1_link.e1_ts = e1_ts;
+ ts->e1_link.e1_ts_ss = e1_ts_ss;
+}
+
+static const char *pchan_names[] = {
+ [GSM_PCHAN_NONE] = "NONE",
+ [GSM_PCHAN_CCCH] = "CCCH",
+ [GSM_PCHAN_CCCH_SDCCH4] = "CCCH+SDCCH4",
+ [GSM_PCHAN_TCH_F] = "TCH/F",
+ [GSM_PCHAN_TCH_H] = "TCH/H",
+ [GSM_PCHAN_SDCCH8_SACCH8C] = "SDCCH8",
+ [GSM_PCHAN_UNKNOWN] = "UNKNOWN",
+};
+
+const char *gsm_pchan_name(enum gsm_phys_chan_config c)
+{
+ if (c >= ARRAY_SIZE(pchan_names))
+ return "INVALID";
+
+ return pchan_names[c];
+}
+
+static const char *lchan_names[] = {
+ [GSM_LCHAN_NONE] = "NONE",
+ [GSM_LCHAN_SDCCH] = "SDCCH",
+ [GSM_LCHAN_TCH_F] = "TCH/F",
+ [GSM_LCHAN_TCH_H] = "TCH/H",
+ [GSM_LCHAN_UNKNOWN] = "UNKNOWN",
+};
+
+const char *gsm_lchan_name(enum gsm_chan_t c)
+{
+ if (c >= ARRAY_SIZE(lchan_names))
+ return "INVALID";
+
+ return lchan_names[c];
+}
+
+static const char *chreq_names[] = {
+ [GSM_CHREQ_REASON_EMERG] = "EMERGENCY",
+ [GSM_CHREQ_REASON_PAG] = "PAGING",
+ [GSM_CHREQ_REASON_CALL] = "CALL",
+ [GSM_CHREQ_REASON_LOCATION_UPD] = "LOCATION_UPDATE",
+ [GSM_CHREQ_REASON_OTHER] = "OTHER",
+};
+
+const char *gsm_chreq_name(enum gsm_chreq_reason_t c)
+{
+ if (c >= ARRAY_SIZE(chreq_names))
+ return "INVALID";
+
+ return chreq_names[c];
+}
+
+struct gsm_network *gsm_network_init(unsigned int num_bts, enum gsm_bts_type bts_type,
+ u_int16_t country_code, u_int16_t network_code)
+{
+ int i;
+ struct gsm_network *net;
+
+ if (num_bts > GSM_MAX_BTS)
+ return NULL;
+
+ net = malloc(sizeof(*net));
+ if (!net)
+ return NULL;
+ memset(net, 0, sizeof(*net));
+
+ net->country_code = country_code;
+ net->network_code = network_code;
+ net->num_bts = num_bts;
+
+ for (i = 0; i < num_bts; i++) {
+ struct gsm_bts *bts = &net->bts[i];
+ int j;
+
+ bts->network = net;
+ bts->nr = i;
+ bts->type = bts_type;
+ bts->tsc = HARDCODED_TSC;
+ bts->bsic = HARDCODED_BSIC;
+
+ for (j = 0; j < BTS_MAX_TRX; j++) {
+ struct gsm_bts_trx *trx = &bts->trx[j];
+ int k;
+
+ trx->bts = bts;
+ trx->nr = j;
+
+ for (k = 0; k < 8; k++) {
+ struct gsm_bts_trx_ts *ts = &trx->ts[k];
+ int l;
+
+ ts->trx = trx;
+ ts->nr = k;
+ ts->pchan = GSM_PCHAN_NONE;
+
+ for (l = 0; l < TS_MAX_LCHAN; l++) {
+ struct gsm_lchan *lchan;
+ lchan = &ts->lchan[l];
+
+ lchan->ts = ts;
+ lchan->nr = l;
+ lchan->type = GSM_LCHAN_NONE;
+ }
+ }
+ }
+
+ bts->num_trx = 1; /* FIXME */
+#ifdef HAVE_TRX1
+ bts->num_trx++;
+#endif
+ bts->c0 = &bts->trx[0];
+ bts->c0->ts[0].pchan = GSM_PCHAN_CCCH_SDCCH4;
+ }
+ return net;
+}
+
+static char ts2str[255];
+
+char *gsm_ts_name(struct gsm_bts_trx_ts *ts)
+{
+ snprintf(ts2str, sizeof(ts2str), "(bts=%d,trx=%d,ts=%d)",
+ ts->trx->bts->bts_nr, ts->trx->nr, ts->nr);
+
+ return ts2str;
+}
+
+static const char *bts_types[] = {
+ [GSM_BTS_TYPE_UNKNOWN] = "unknown",
+ [GSM_BTS_TYPE_BS11] = "bs11",
+ [GSM_BTS_TYPE_NANOBTS_900] = "nanobts900",
+ [GSM_BTS_TYPE_NANOBTS_1800] = "nanobts1800",
+};
+
+enum gsm_bts_type parse_btstype(char *arg)
+{
+ int i;
+ for (i = 0; i < ARRAY_SIZE(bts_types); i++) {
+ if (!strcmp(arg, bts_types[i]))
+ return i;
+ }
+ return GSM_BTS_TYPE_BS11; /* Default: BS11 */
+}
+
+char *btstype2str(enum gsm_bts_type type)
+{
+ if (type > ARRAY_SIZE(bts_types))
+ return "undefined";
+ return bts_types[type];
+}
+
+/* Search for a BTS in the given Location Area; optionally start searching
+ * with start_bts (for continuing to search after the first result) */
+struct gsm_bts *gsm_bts_by_lac(struct gsm_network *net, unsigned int lac,
+ struct gsm_bts *start_bts)
+{
+ int i;
+ struct gsm_bts *bts;
+ int skip = 0;
+
+ if (start_bts)
+ skip = 1;
+
+ for (i = 0; i < net->num_bts; i++) {
+ bts = &net->bts[i];
+
+ if (skip) {
+ if (start_bts == bts)
+ skip = 0;
+ continue;
+ }
+
+ if (bts->location_area_code == lac)
+ return bts;
+ }
+ return NULL;
+}