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-rw-r--r--src/nmt/main.c291
1 files changed, 291 insertions, 0 deletions
diff --git a/src/nmt/main.c b/src/nmt/main.c
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+/* NMT main
+ *
+ * (C) 2016 by Andreas Eversberg <jolly@eversberg.eu>
+ * 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 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <getopt.h>
+#include <stdlib.h>
+#include <string.h>
+#include <signal.h>
+#include <sched.h>
+#include "../common/main.h"
+#include "../common/debug.h"
+#include "../common/timer.h"
+#include "../common/call.h"
+#include "../common/mncc_sock.h"
+#include "nmt.h"
+#include "frame.h"
+#include "dsp.h"
+#include "image.h"
+#include "tones.h"
+#include "announcement.h"
+
+/* settings */
+enum nmt_chan_type chan_type = CHAN_TYPE_CC_TC;
+int ms_power = 1; /* 1..3 */
+char traffic_area[3] = "";
+char area_no = 0;
+int compander = 1;
+int supervisory = 0;
+
+void print_help(const char *arg0)
+{
+ print_help_common(arg0, "-y <traffic area> | list ");
+ /* - - */
+ printf(" -t --channel-type <channel type> | list\n");
+ printf(" Give channel type, use 'list' to get a list. (default = '%s')\n", chan_type_short_name(chan_type));
+ printf(" -P --ms-power <power level>\n");
+ printf(" Give power level of the mobile station 1..3. (default = '%d')\n", ms_power);
+ printf(" 3 = 15 W / 7 W (handheld), 2 = 1.5 W, 1 = 150 mW\n");
+ printf(" -y --traffic-area <traffic area> | list\n");
+ printf(" NOTE: MUST MATCH WITH YOUR ROAMING SETTINGS IN THE PHONE!\n");
+ printf(" Your phone will not connect, if country code is different!\n");
+ printf(" Give two digits of traffic area, the first digit defines the country\n");
+ printf(" code, the second defines the cell area. (Example: 61 = Sweden, cell 1)\n");
+ printf(" Alternatively you can give the short code for country and the cell\n");
+ printf(" area seperated by comma. (Example: SE,1 = Sweden, cell 1)\n");
+ printf(" Use 'list' to get a list of available short country code names\n");
+ printf(" -a --area-number <area no> | 0\n");
+ printf(" Give area number 1..4 or 0 for no area number. (default = '%d')\n", area_no);
+ printf(" -C --compander 1 | 0\n");
+ printf(" Make use of the compander to reduce noise during call. (default = '%d')\n", compander);
+ printf(" -0 --supervisory 1..4 | 0\n");
+ printf(" Use supervisory signal 1..4 to detect loss of signal from mobile\n");
+ printf(" station, use 0 to disable. (default = '%d')\n", supervisory);
+ printf("\nstation-id: Give 7 digits of station-id, you don't need to enter it\n");
+ printf(" for every start of this program.\n");
+}
+
+static int handle_options(int argc, char **argv)
+{
+ char country[32], *p;
+ int skip_args = 0;
+
+ static struct option long_options_special[] = {
+ {"channel-type", 1, 0, 't'},
+ {"ms-power", 1, 0, 'P'},
+ {"area-number", 1, 0, 'a'},
+ {"traffic-area", 1, 0, 'y'},
+ {"compander", 1, 0, 'C'},
+ {"supervisory", 1, 0, '0'},
+ {0, 0, 0, 0}
+ };
+
+ set_options_common("t:P:a:y:C:0:", long_options_special);
+
+ while (1) {
+ int option_index = 0, c, rc;
+
+ c = getopt_long(argc, argv, optstring, long_options, &option_index);
+
+ if (c == -1)
+ break;
+
+ switch (c) {
+ case 't':
+
+ if (!strcmp(optarg, "list")) {
+ nmt_channel_list();
+ exit(0);
+ }
+ rc = nmt_channel_by_short_name(optarg);
+ if (rc < 0) {
+ fprintf(stderr, "Error, channel type '%s' unknown. Please use '-t list' to get a list. I suggest to use the default.\n", optarg);
+ exit(0);
+ }
+ chan_type = rc;
+ skip_args += 2;
+ break;
+ case 'P':
+ ms_power = atoi(optarg);
+ if (ms_power > 3)
+ ms_power = 3;
+ if (ms_power < 1)
+ ms_power = 1;
+ skip_args += 2;
+ break;
+ case 'a':
+ area_no = optarg[0] - '0';
+ if (area_no > 4) {
+ fprintf(stderr, "Area number '%s' out of range, please use 1..4 or 0 for no area\n", optarg);
+ exit(0);
+ }
+ skip_args += 2;
+ break;
+ case 'y':
+
+ if (!strcmp(optarg, "list")) {
+ nmt_country_list();
+ exit(0);
+ }
+ /* digits */
+ if (optarg[0] >= '0' && optarg[0] <= '9') {
+ traffic_area[0] = optarg[0];
+ if (optarg[1] < '0' || optarg[1] > '9') {
+error_ta:
+ fprintf(stderr, "Illegal traffic area '%s', see '-h' for help\n", optarg);
+ exit(0);
+ }
+ traffic_area[1] = optarg[1];
+ if (optarg[2] != '\0')
+ goto error_ta;
+ traffic_area[2] = '\0';
+ } else {
+ strncpy(country, optarg, sizeof(country) - 1);
+ country[sizeof(country) - 1] = '\0';
+ p = strchr(country, ',');
+ if (!p)
+ goto error_ta;
+ *p++ = '\0';
+ rc = nmt_country_by_short_name(country);
+ if (!rc)
+ goto error_ta;
+ if (*p < '0' || *p > '9')
+ goto error_ta;
+ traffic_area[0] = rc + '0';
+ traffic_area[1] = *p;
+ traffic_area[2] = '\0';
+ }
+ skip_args += 2;
+ break;
+ case 'C':
+ compander = atoi(optarg);
+ skip_args += 2;
+ break;
+ case '0':
+ supervisory = atoi(optarg);
+ if (supervisory < 0 || supervisory > 4) {
+ fprintf(stderr, "Given supervisory signal is wrong, use '-h' for help!\n");
+ exit(0);
+ }
+ skip_args += 2;
+ break;
+ default:
+ opt_switch_common(c, argv[0], &skip_args);
+ }
+ }
+
+ free(long_options);
+
+ return skip_args;
+}
+
+int main(int argc, char *argv[])
+{
+ int rc;
+ int skip_args;
+ const char *station_id = "";
+
+ /* init common tones */
+ init_nmt_tones();
+ init_announcement();
+
+ skip_args = handle_options(argc, argv);
+ argc -= skip_args;
+ argv += skip_args;
+
+ if (argc > 1)
+ station_id = argv[1];
+
+ if (!kanal) {
+ printf("No channel (\"Kanal\") is specified, I suggest channel 1.\n\n");
+ print_help(argv[0]);
+ return 0;
+ }
+
+ if (!traffic_area[0]) {
+ printf("No traffic area is specified, I suggest to use 'SE' for Sweden and set the phone's roaming to 'SE' also.\n\n");
+ print_help(argv[0]);
+ return 0;
+ }
+
+ if (!loopback)
+ print_image();
+
+ /* init functions */
+ if (use_mncc_sock) {
+ rc = mncc_init("/tmp/bsc_mncc");
+ if (rc < 0) {
+ fprintf(stderr, "Failed to setup MNCC socket. Quitting!\n");
+ return -1;
+ }
+ }
+ init_frame();
+ dsp_init();
+ rc = call_init(station_id, call_sounddev, samplerate, latency, 7, loopback);
+ if (rc < 0) {
+ fprintf(stderr, "Failed to create call control instance. Quitting!\n");
+ goto fail;
+ }
+
+ /* create transceiver instance */
+ rc = nmt_create(sounddev, samplerate, kanal, (loopback) ? CHAN_TYPE_TEST : chan_type, ms_power, nmt_digits2value(traffic_area, 2), area_no, compander, supervisory, loopback);
+ if (rc < 0) {
+ fprintf(stderr, "Failed to create transceiver instance. Quitting!\n");
+ goto fail;
+ }
+ if (kanal > 200) {
+ printf("Base station ready, please tune transmitter to %.4f MHz and receiver "
+ "to %.4f MHz.\n", nmt_channel2freq(kanal, 0),
+ nmt_channel2freq(kanal, 1));
+ } else {
+ printf("Base station ready, please tune transmitter to %.3f MHz and receiver "
+ "to %.3f MHz.\n", nmt_channel2freq(kanal, 0),
+ nmt_channel2freq(kanal, 1));
+ }
+
+ signal(SIGINT,sighandler);
+ signal(SIGHUP,sighandler);
+ signal(SIGTERM,sighandler);
+ signal(SIGPIPE,sighandler);
+
+ if (rt_prio > 0) {
+ struct sched_param schedp;
+ int rc;
+
+ memset(&schedp, 0, sizeof(schedp));
+ schedp.sched_priority = rt_prio;
+ rc = sched_setscheduler(0, SCHED_RR, &schedp);
+ if (rc)
+ fprintf(stderr, "Error setting SCHED_RR with prio %d\n", rt_prio);
+ }
+
+ main_loop(&quit, latency);
+
+ if (rt_prio > 0) {
+ struct sched_param schedp;
+
+ memset(&schedp, 0, sizeof(schedp));
+ schedp.sched_priority = 0;
+ sched_setscheduler(0, SCHED_OTHER, &schedp);
+ }
+
+fail:
+ /* cleanup functions */
+ call_cleanup();
+ if (use_mncc_sock)
+ mncc_exit();
+
+ /* destroy transceiver instance */
+ while (sender_head)
+ nmt_destroy(sender_head);
+
+ return 0;
+}
+
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