434 lines
13 KiB
C
434 lines
13 KiB
C
/* NMT main
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*
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* (C) 2016 by Andreas Eversberg <jolly@eversberg.eu>
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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 3 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
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include "../libsample/sample.h"
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#include "../libmobile/main_mobile.h"
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#include "../libdebug/debug.h"
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#include "../liboptions/options.h"
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#include "nmt.h"
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#include "frame.h"
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#include "dsp.h"
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#include "tones.h"
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#include "announcement.h"
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#include "countries.h"
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#define SMS_DELIVER "/tmp/nmt_sms_deliver"
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#define SMS_SUBMIT "/tmp/nmt_sms_submit"
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static int sms_deliver_fd = -1;
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/* settings */
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int nmt_system = 450;
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int num_chan_type = 0;
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enum nmt_chan_type chan_type[MAX_SENDER] = { CHAN_TYPE_CC_TC };
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int ms_power = 1; /* 0..3 */
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char country[16] = "";
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uint8_t traffic_area;
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int traffic_area_given = 0;
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char area_no = 0;
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int compandor = 1;
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int num_supervisory = 0;
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int supervisory[MAX_SENDER] = { 1 };
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const char *smsc_number = "767";
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int send_callerid = 0;
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void print_help(const char *arg0)
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{
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main_mobile_print_help(arg0, "[-N 900] -Y <traffic area> | list [-I 1] [-0 1] ");
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/* - - */
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printf(" -N --nmt-system 450/900\n");
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printf(" Give NMT type as first parameter. (default = '%d')\n", nmt_system);
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printf(" Note: This option must be given at first!\n");
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printf(" -T --channel-type <channel type> | list\n");
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printf(" Give channel type, use 'list' to get a list. (default = '%s')\n", chan_type_short_name(nmt_system, chan_type[0]));
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printf(" -P --ms-power <power level>\n");
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printf(" Give power level of the mobile station 0..3. (default = '%d')\n", ms_power);
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if (nmt_system == 450) {
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printf(" NMT-450: 3 = 15 W / 7 W (handheld), 2 = 1.5 W, 1/0 = 150 mW\n");
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} else {
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printf(" NMT-900: 3/2 = 6 W, 1 = 1.5 W, 0 = 150 mW\n");
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}
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printf(" Note: Power level < 2 causes mobile to search longer for a cell.\n");
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printf(" -Y --traffic-area <traffic area> | list\n");
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printf(" NOTE: MUST MATCH WITH YOUR ROAMING SETTINGS IN THE PHONE!\n");
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printf(" Your phone will not connect, if country code is different!\n");
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printf(" Give short country code and traffic area separated by comma.\n");
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printf(" (Example: Give 'SE,1' for Sweden, traffic area 1)\n");
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printf(" Add '!' to force traffic area that is not supported by country.\n");
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printf(" (Example: Give 'B,12!' for Belgium, traffic area 12)\n");
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printf(" Use 'list' to get a list of available country code names\n");
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printf(" -A --area-number <area no> | 0\n");
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printf(" Give area number 1..4 or 0 for no area number. (default = '%d')\n", area_no);
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printf(" -C --compandor 1 | 0\n");
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printf(" Make use of the compandor to reduce noise during call. (default = '%d')\n", compandor);
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printf(" -0 --supervisory 1..4 | 0\n");
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printf(" Use supervisory signal 1..4 to detect loss of signal from mobile\n");
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printf(" station, use 0 to disable. (default = '%d')\n", supervisory[0]);
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printf(" -S --smsc-number <digits>\n");
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printf(" If this number is dialed, the mobile is connected to the SMSC (Short\n");
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printf(" Message Service Center). (default = '%s')\n", smsc_number);
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printf(" -I --caller-id 1 | 0\n");
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printf(" If set, the caller ID is sent while ringing the phone. (default = '%d')\n", send_callerid);
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main_mobile_print_station_id();
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main_mobile_print_hotkeys();
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}
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static void add_options(void)
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{
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main_mobile_add_options();
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option_add('N', "nmt-system", 1);
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option_add('T', "channel-type", 1);
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option_add('P', "ms-power", 1);
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option_add('Y', "traffic-area", 1);
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option_add('A', "area-number", 1);
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option_add('C', "compandor", 1);
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option_add('0', "supervisory", 1);
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option_add('S', "smsc-number", 1);
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option_add('I', "caller-id", 1);
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}
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static int handle_options(int short_option, int argi, char **argv)
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{
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int rc;
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char *p;
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int super;
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switch (short_option) {
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case 'N':
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nmt_system = atoi(argv[argi]);
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if (nmt_system != 450 && nmt_system != 900) {
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fprintf(stderr, "Error, NMT system type '%s' unknown. Please use '-N 450' for NMT-450 or '-N 900' for NMT-900.\n", argv[argi]);
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return -EINVAL;
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}
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if (nmt_system == 900)
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ms_power = 0;
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if (!option_is_first()) {
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fprintf(stderr, "Please specify the NMT system (-N) as first command line option!\n");
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return -EINVAL;
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}
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break;
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case 'T':
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if (!strcmp(argv[argi], "list")) {
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nmt_channel_list(nmt_system);
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return 0;
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}
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rc = nmt_channel_by_short_name(nmt_system, argv[argi]);
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if (rc < 0) {
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fprintf(stderr, "Error, channel type '%s' unknown. Please use '-t list' to get a list. I suggest to use the default.\n", argv[argi]);
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return -EINVAL;
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}
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OPT_ARRAY(num_chan_type, chan_type, rc)
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break;
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case 'P':
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ms_power = atoi(argv[argi]);
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if (ms_power > 3)
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ms_power = 3;
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if (ms_power < 0)
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ms_power = 0;
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break;
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case 'Y':
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if (!strcmp(argv[argi], "list")) {
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nmt_country_list(nmt_system);
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return 0;
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}
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/* digits */
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strncpy(country, argv[argi], sizeof(country) - 1);
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country[sizeof(country) - 1] = '\0';
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p = strchr(country, ',');
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if (!p) {
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fprintf(stderr, "Illegal traffic area '%s', see '-h' for help\n", argv[argi]);
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return -EINVAL;
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}
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*p++ = '\0';
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rc = nmt_country_by_short_name(nmt_system, country);
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if (rc < 0) {
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error_ta:
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fprintf(stderr, "Invalid traffic area '%s', use '-Y list' for a list of valid areas\n", argv[argi]);
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return -EINVAL;
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}
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traffic_area = rc << 4;
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if (p[strlen(p) - 1] != '!') {
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rc = nmt_ta_by_short_name(nmt_system, country, atoi(p));
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if (rc < 0)
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goto error_ta;
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}
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if (atoi(p) < 0 || atoi(p) > 15)
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goto error_ta;
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traffic_area |= (nmt_system == 450) ? nmt_flip_ten(atoi(p)) : atoi(p);
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traffic_area_given = 1;
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break;
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case 'A':
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area_no = argv[argi][0] - '0';
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if (area_no > 4) {
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fprintf(stderr, "Area number '%s' out of range, please use 1..4 or 0 for no area\n", argv[argi]);
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return -EINVAL;
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}
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break;
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case 'C':
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compandor = atoi(argv[argi]);
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break;
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case '0':
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super = atoi(argv[argi]);
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if (super < 0 || super > 4) {
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fprintf(stderr, "Given supervisory signal is wrong, use '-h' for help!\n");
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return -EINVAL;
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}
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OPT_ARRAY(num_supervisory, supervisory, super)
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break;
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case 'S':
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smsc_number = options_strdup(argv[argi]);
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break;
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case 'I':
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send_callerid = atoi(argv[argi]);
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break;
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default:
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return main_mobile_handle_options(short_option, argi, argv);
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}
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return 1;
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}
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static void myhandler(void)
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{
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static char buffer[256];
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static int pos = 0, rc, i;
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int space = sizeof(buffer) - pos;
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rc = read(sms_deliver_fd, buffer + pos, space);
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if (rc > 0) {
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pos += rc;
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if (pos == space) {
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fprintf(stderr, "SMS buffer overflow!\n");
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pos = 0;
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}
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/* check for end of line */
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for (i = 0; i < pos; i++) {
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if (buffer[i] == '\r' || buffer[i] == '\n')
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break;
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}
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/* send sms */
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if (i < pos) {
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buffer[i] = '\0';
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pos = 0;
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deliver_sms(buffer);
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}
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}
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}
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int submit_sms(const char *sms)
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{
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FILE *fp;
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fp = fopen(SMS_SUBMIT, "a");
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if (!fp) {
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fprintf(stderr, "Failed to open SMS submit file '%s'!\n", SMS_SUBMIT);
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return -1;
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}
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fprintf(fp, "%s\n", sms);
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fclose(fp);
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return 0;
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}
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static const struct number_lengths number_lengths[] = {
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{ 7, "NMT number (1st digit country code)" },
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{ 0, NULL }
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};
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int main(int argc, char *argv[])
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{
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int rc, argi;
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const char *station_id = "";
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int mandatory = 0;
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int i;
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/* init common tones */
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init_nmt_tones();
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init_announcement();
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/* init mobile interface */
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main_mobile_init("0123456789", number_lengths, NULL, NULL);
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/* handle options / config file */
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add_options();
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rc = options_config_file(argc, argv, "~/.osmocom/analog/nmt.conf", handle_options);
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if (rc < 0)
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return 0;
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argi = options_command_line(argc, argv, handle_options);
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if (argi <= 0)
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return argi;
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if (argi < argc) {
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station_id = argv[argi];
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rc = main_mobile_number_ask(station_id, "station ID");
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if (rc)
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return rc;
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}
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if (!num_kanal) {
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printf("No channel (\"Kanal\") is specified, I suggest channel 1 (-k 1).\n\n");
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mandatory = 1;
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}
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if (use_sdr) {
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/* set device */
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for (i = 0; i < num_kanal; i++)
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dsp_device[i] = "sdr";
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num_device = num_kanal;
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/* set channel types for more than 1 channel */
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if (num_kanal > 1 && num_chan_type == 0) {
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if (loopback)
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chan_type[0] = CHAN_TYPE_TEST;
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else
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chan_type[0] = CHAN_TYPE_CC;
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for (i = 1; i < num_kanal; i++) {
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if (loopback)
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chan_type[i] = CHAN_TYPE_TEST;
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else
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chan_type[i] = CHAN_TYPE_TC;
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}
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num_chan_type = num_kanal;
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}
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if (num_supervisory == 0) {
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/* set supervisory signal */
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for (i = 0; i < num_kanal; i++)
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supervisory[i] = (i % 4) + 1;
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num_supervisory = num_kanal;
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}
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}
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if (num_kanal == 1 && num_device == 0)
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num_device = 1; /* use default */
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if (num_kanal != num_device) {
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fprintf(stderr, "You need to specify as many sound devices as you have channels.\n");
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return -EINVAL;
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}
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if (num_kanal == 1 && num_chan_type == 0) {
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num_chan_type = 1; /* use default */
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if (loopback)
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chan_type[0] = CHAN_TYPE_TEST;
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}
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if (num_kanal != num_chan_type) {
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fprintf(stderr, "You need to specify as many channel types as you have channels.\n");
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return -EINVAL;
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}
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if (num_kanal == 1 && num_supervisory == 0)
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num_supervisory = 1; /* use default */
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if (num_kanal != num_supervisory) {
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fprintf(stderr, "You need to specify as many supervisory signals as you have channels.\n");
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fprintf(stderr, "They shall be different at channels that are close to each other.\n");
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return -EINVAL;
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}
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if (num_kanal) {
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uint8_t super[5] = { 0, 0, 0, 0, 0 };
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for (i = 0; i < num_kanal; i++) {
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if (supervisory[i] == 0) {
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fprintf(stderr, "No supervisory signal given for channel %s. This is ok, but signal loss dannot be detected. \n", kanal[i]);
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continue;
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}
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if (super[supervisory[i]]) {
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fprintf(stderr, "Supervisory signal %d is selected for both cannels #%s and #%d. I advice to use different signal, to avoid co-channel interferences.\n", supervisory[i], kanal[i], super[supervisory[i]]);
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continue;
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}
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super[supervisory[i]] = atoi(kanal[i]);
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}
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}
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if (!traffic_area_given) {
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printf("No traffic area is specified, I suggest to use Sweden (-Y SE,1) and set the phone's roaming to 'SE' also.\n\n");
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mandatory = 1;
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}
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if (mandatory) {
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print_help(argv[0]);
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return 0;
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}
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/* create pipe for SMS delivery */
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unlink(SMS_DELIVER);
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rc = mkfifo(SMS_DELIVER, 0666);
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if (rc < 0) {
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fprintf(stderr, "Failed to create SMS deliver FIFO '%s'!\n", SMS_DELIVER);
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goto fail;
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} else {
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sms_deliver_fd = open(SMS_DELIVER, O_RDONLY | O_NONBLOCK);
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if (sms_deliver_fd < 0) {
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fprintf(stderr, "Failed to open SMS deliver FIFO! '%s'\n", SMS_DELIVER);
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goto fail;
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}
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}
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/* inits */
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fm_init(fast_math);
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rc = init_frame();
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if (rc < 0) {
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fprintf(stderr, "Failed to setup frames. Quitting!\n");
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return -1;
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}
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dsp_init();
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/* SDR always requires emphasis */
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if (use_sdr) {
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do_pre_emphasis = 1;
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do_de_emphasis = 1;
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}
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/* create transceiver instance */
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for (i = 0; i < num_kanal; i++) {
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rc = nmt_create(nmt_system, country, kanal[i], chan_type[i], dsp_device[i], use_sdr, dsp_samplerate, rx_gain, tx_gain, do_pre_emphasis, do_de_emphasis, write_rx_wave, write_tx_wave, read_rx_wave, read_tx_wave, ms_power, traffic_area, area_no, compandor, supervisory[i], smsc_number, send_callerid, loopback);
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if (rc < 0) {
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fprintf(stderr, "Failed to create transceiver instance. Quitting!\n");
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goto fail;
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}
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printf("base station on channel %s ready, please tune transmitter to %.4f MHz and receiver to %.4f MHz. (%.3f MHz offset)\n", kanal[i], nmt_channel2freq(nmt_system, country, atoi(kanal[i]), 0, NULL, NULL, NULL) / 1e6, nmt_channel2freq(nmt_system, country, atoi(kanal[i]), 1, NULL, NULL, NULL) / 1e6, nmt_channel2freq(nmt_system, country, atoi(kanal[i]), 2, NULL, NULL, NULL) / 1e6);
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}
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nmt_check_channels(nmt_system);
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main_mobile_loop("nmt", &quit, myhandler, station_id);
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fail:
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/* fifo */
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if (sms_deliver_fd > 0)
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close(sms_deliver_fd);
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unlink(SMS_DELIVER);
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/* destroy transceiver instance */
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while (sender_head)
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nmt_destroy(sender_head);
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/* exits */
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fm_exit();
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options_free();
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return 0;
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}
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