253 lines
5.4 KiB
C
253 lines
5.4 KiB
C
/* (C) 2008-2009 by Harald Welte <laforge@gnumonks.org>
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*
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* All Rights Reserved
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <openbsc/gsm_data.h>
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void set_ts_e1link(struct gsm_bts_trx_ts *ts, u_int8_t e1_nr,
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u_int8_t e1_ts, u_int8_t e1_ts_ss)
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{
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ts->e1_link.e1_nr = e1_nr;
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ts->e1_link.e1_ts = e1_ts;
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ts->e1_link.e1_ts_ss = e1_ts_ss;
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}
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static const char *pchan_names[] = {
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[GSM_PCHAN_NONE] = "NONE",
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[GSM_PCHAN_CCCH] = "CCCH",
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[GSM_PCHAN_CCCH_SDCCH4] = "CCCH+SDCCH4",
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[GSM_PCHAN_TCH_F] = "TCH/F",
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[GSM_PCHAN_TCH_H] = "TCH/H",
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[GSM_PCHAN_SDCCH8_SACCH8C] = "SDCCH8",
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[GSM_PCHAN_UNKNOWN] = "UNKNOWN",
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};
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const char *gsm_pchan_name(enum gsm_phys_chan_config c)
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{
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if (c >= ARRAY_SIZE(pchan_names))
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return "INVALID";
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return pchan_names[c];
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}
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static const char *lchan_names[] = {
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[GSM_LCHAN_NONE] = "NONE",
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[GSM_LCHAN_SDCCH] = "SDCCH",
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[GSM_LCHAN_TCH_F] = "TCH/F",
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[GSM_LCHAN_TCH_H] = "TCH/H",
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[GSM_LCHAN_UNKNOWN] = "UNKNOWN",
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};
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const char *gsm_lchan_name(enum gsm_chan_t c)
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{
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if (c >= ARRAY_SIZE(lchan_names))
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return "INVALID";
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return lchan_names[c];
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}
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static const char *chreq_names[] = {
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[GSM_CHREQ_REASON_EMERG] = "EMERGENCY",
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[GSM_CHREQ_REASON_PAG] = "PAGING",
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[GSM_CHREQ_REASON_CALL] = "CALL",
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[GSM_CHREQ_REASON_LOCATION_UPD] = "LOCATION_UPDATE",
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[GSM_CHREQ_REASON_OTHER] = "OTHER",
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};
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const char *gsm_chreq_name(enum gsm_chreq_reason_t c)
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{
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if (c >= ARRAY_SIZE(chreq_names))
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return "INVALID";
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return chreq_names[c];
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}
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struct gsm_network *gsm_network_init(unsigned int num_bts, enum gsm_bts_type bts_type,
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u_int16_t country_code, u_int16_t network_code,
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int (*mncc_recv)(struct gsm_network *, int, void *))
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{
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int i;
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struct gsm_network *net;
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if (num_bts > GSM_MAX_BTS)
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return NULL;
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net = malloc(sizeof(*net));
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if (!net)
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return NULL;
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memset(net, 0, sizeof(*net));
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net->country_code = country_code;
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net->network_code = network_code;
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net->num_bts = num_bts;
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INIT_LLIST_HEAD(&net->trans_list);
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INIT_LLIST_HEAD(&net->upqueue);
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net->mncc_recv = mncc_recv;
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for (i = 0; i < num_bts; i++) {
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struct gsm_bts *bts = &net->bts[i];
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int j;
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bts->network = net;
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bts->nr = i;
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bts->type = bts_type;
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bts->tsc = HARDCODED_TSC;
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bts->bsic = HARDCODED_BSIC;
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for (j = 0; j < BTS_MAX_TRX; j++) {
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struct gsm_bts_trx *trx = &bts->trx[j];
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int k;
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trx->bts = bts;
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trx->nr = j;
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for (k = 0; k < TRX_NR_TS; k++) {
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struct gsm_bts_trx_ts *ts = &trx->ts[k];
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int l;
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ts->trx = trx;
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ts->nr = k;
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ts->pchan = GSM_PCHAN_NONE;
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for (l = 0; l < TS_MAX_LCHAN; l++) {
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struct gsm_lchan *lchan;
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lchan = &ts->lchan[l];
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lchan->ts = ts;
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lchan->nr = l;
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lchan->type = GSM_LCHAN_NONE;
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}
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}
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}
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bts->num_trx = 1; /* FIXME */
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#ifdef HAVE_TRX1
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bts->num_trx++;
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#endif
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bts->c0 = &bts->trx[0];
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bts->c0->ts[0].pchan = GSM_PCHAN_CCCH_SDCCH4;
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}
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return net;
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}
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static char ts2str[255];
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char *gsm_ts_name(struct gsm_bts_trx_ts *ts)
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{
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snprintf(ts2str, sizeof(ts2str), "(bts=%d,trx=%d,ts=%d)",
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ts->trx->bts->bts_nr, ts->trx->nr, ts->nr);
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return ts2str;
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}
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static const char *bts_types[] = {
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[GSM_BTS_TYPE_UNKNOWN] = "unknown",
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[GSM_BTS_TYPE_BS11] = "bs11",
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[GSM_BTS_TYPE_NANOBTS_900] = "nanobts900",
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[GSM_BTS_TYPE_NANOBTS_1800] = "nanobts1800",
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};
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enum gsm_bts_type parse_btstype(char *arg)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(bts_types); i++) {
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if (!strcmp(arg, bts_types[i]))
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return i;
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}
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return GSM_BTS_TYPE_BS11; /* Default: BS11 */
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}
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const char *btstype2str(enum gsm_bts_type type)
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{
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if (type > ARRAY_SIZE(bts_types))
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return "undefined";
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return bts_types[type];
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}
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/* Search for a BTS in the given Location Area; optionally start searching
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* with start_bts (for continuing to search after the first result) */
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struct gsm_bts *gsm_bts_by_lac(struct gsm_network *net, unsigned int lac,
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struct gsm_bts *start_bts)
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{
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int i;
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struct gsm_bts *bts;
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int skip = 0;
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if (start_bts)
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skip = 1;
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for (i = 0; i < net->num_bts; i++) {
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bts = &net->bts[i];
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if (skip) {
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if (start_bts == bts)
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skip = 0;
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continue;
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}
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if (bts->location_area_code == lac)
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return bts;
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}
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return NULL;
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}
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char *gsm_band_name(enum gsm_band band)
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{
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switch (band) {
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case GSM_BAND_400:
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return "GSM 400";
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case GSM_BAND_850:
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return "GSM 850";
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case GSM_BAND_900:
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return "GSM 900";
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case GSM_BAND_1800:
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return "DCS 1800";
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case GSM_BAND_1900:
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return "PCS 1900";
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}
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return "invalid";
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}
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enum gsm_band gsm_band_parse(int mhz)
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{
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switch (mhz) {
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case 400:
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return GSM_BAND_400;
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case 850:
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return GSM_BAND_850;
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case 900:
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return GSM_BAND_900;
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case 1800:
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return GSM_BAND_1800;
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case 1900:
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return GSM_BAND_1900;
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default:
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return -EINVAL;
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}
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}
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