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-rw-r--r--src/mpt1327/main.c398
1 files changed, 398 insertions, 0 deletions
diff --git a/src/mpt1327/main.c b/src/mpt1327/main.c
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+/* MPT1327 main
+ *
+ * (C) 2021 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 <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <errno.h>
+#include <math.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include "../libsample/sample.h"
+#include "../libmobile/main_mobile.h"
+#include "../libdebug/debug.h"
+#include "../libtimer/timer.h"
+#include "../anetz/freiton.h"
+#include "../anetz/besetztton.h"
+#include "../liboptions/options.h"
+#include "mpt1327.h"
+#include "dsp.h"
+#include "message.h"
+
+/* settings */
+int num_freq = 0;
+static int num_chan_type = 0;
+static double squelch_db = -INFINITY;
+static enum mpt1327_band band = BAND_REGIONET43_SUB1;
+static enum mpt1327_chan_type chan_type[MAX_SENDER] = { CHAN_TYPE_CC_TC };
+static int16_t sys = -1;
+static int wt = 10;
+static int per = 5;
+static int pon = 1;
+static int timeout = 30;
+
+void print_image(void) {}
+
+void print_help(const char *arg0)
+{
+ main_mobile_print_help(arg0, "-O ... | -I ... ");
+ /* - - */
+ printf(" -B --band <name> | list\n");
+ printf(" Select frequency Band (default = '%s')\n", mpt1327_band_name(band));
+ 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[0]));
+ printf(" -O --operator <OPID> <NDD> <LAB>\n");
+ printf(" -> decimal, '0x' for hex or all binary digits\n");
+ printf(" Give System Identity Code of regional network (1st bit = 0)\n");
+ printf(" OPID: Operator Identity (7 binary digits)\n");
+ printf(" -> Check subscription data of mobile unit\n");
+ printf(" NDD: Network Dependent Data (4 binary digts)\n");
+ printf(" -> Check subscription data of mobile unit (must be '0001' or greater)\n");
+ printf(" -> Change it to force re-registering of mobile unit.\n");
+ printf(" LAB: Label for multiple control channels (3 binary digits)\n");
+ printf(" -> Use '001' to allow all categories\n");
+ printf(" -N --net <NET> <NDD> <LAB>\n");
+ printf(" -> decimal, '0x' for hex or all binary digits\n");
+ printf(" Give System Identity Code of national network (1st bit = 1)\n");
+ printf(" NET: Network Identity (2 binary digits)\n");
+ printf(" -> Check subscription data of mobile unit (must be '000000001' or greater)\n");
+ printf(" -> Change it to force re-registering of mobile unit.\n");
+ printf(" NDD: Network Dependent Data (9 binary digts)\n");
+ printf(" LAB: Label for multiple control channels (3 binary digits)\n");
+ printf(" -> Use '001' to allow all categories\n");
+ printf(" -S --sysdef wt=5 | wt=10 | wt=15\n");
+ printf(" Number of slots the Radio Unit waits for response. A slot lasts about\n");
+ printf(" 107 ms. (default = %d)\n", wt);
+ printf(" -S --sysdef per=<secs> | per=0\n");
+ printf(" Interval of periodic messages from the Radio Unit while transmitting\n");
+ printf(" speech. Use 1..31 to enable and 0 to disable. Also the 'timeout' value\n");
+ printf(" must be greater than value given here. (default = %d)\n", per);
+ printf(" -S --sysdef pon=1 | pon=0\n");
+ printf(" The Radio Unit must send 'Pressel On' message to unmute the uplink.\n");
+ printf(" If disabled, squelch must be enabled. (default = %d)\n", pon);
+ printf(" -S --sysdef timeout=<secs> | timeout=off\n");
+ printf(" The Traffic Channel is released, if no radio transmits for given amount of time.\n");
+ printf(" (default = %d)\n", timeout);
+ printf(" -Q --squelch <dB> | auto\n");
+ printf(" Use given RF level to detect transmission on Traffic Channel, if\n");
+ printf(" 'Pressel On' is disabled.\n");
+ printf(" and stays below this level, the connection is released.\n");
+ printf(" Use 'auto' to do automatic noise floor calibration to detect loss.\n");
+ printf(" Only works with SDR! (disabled by default)\n");
+
+ printf("\nstation-id: Give 7 digits of Radio Unit's prefix/ident, you don't need to\n");
+ printf(" enter it for every start of this program.\n");
+ main_mobile_print_hotkeys();
+ printf("Press 'i' key to dump list of seen Radio Units.\n");
+}
+
+static void add_options(void)
+{
+ main_mobile_add_options();
+ option_add('B', "band", 1);
+ option_add('T', "channel-type", 1);
+ option_add('O', "operator", 3);
+ option_add('N', "net", 3);
+ option_add('S', "sysdef", 1);
+ option_add('Q', "squelch", 1);
+}
+
+static int read_sys(const char *param, const char *value, int digits)
+{
+ int result = 0;
+ int i;
+
+ if ((int)strlen(value) < digits) {
+ result = strtoul(value, NULL, 0);
+ if (result >= (1 << digits)) {
+ fprintf(stderr, "Given '%s' value is out of range for %d binary digits, use '-h' for help!\n", param, digits);
+ return -EINVAL;
+ }
+ return result;
+ }
+
+ if ((int)strlen(value) > digits) {
+ fprintf(stderr, "Given '%s' value must have exactly %d binary digits, use '-h' for help!\n", param, digits);
+ return -EINVAL;
+ }
+
+ for (i = 0; i < (int)strlen(value); i++) {
+ if (value[i] < '0' || value[i] > '1') {
+ fprintf(stderr, "Given '%s' value must only have binary digits of '0' or '1', use '-h' for help!\n", param);
+ return -EINVAL;
+ }
+ result = (result << 1) | (value[i] - '0');
+ }
+
+ return result;
+}
+
+static int handle_options(int short_option, int argi, char **argv)
+{
+ int rc;
+ const char *p;
+
+ switch (short_option) {
+ case 'B':
+ if (!strcmp(argv[argi], "list")) {
+ mpt1327_band_list();
+ return 0;
+ }
+ rc = mpt1327_band_by_short_name(argv[argi]);
+ if (rc < 0) {
+ fprintf(stderr, "Given band '%s' is illegal, use '-h' for help!\n", argv[argi]);
+ return -EINVAL;
+ }
+ band = rc;
+ break;
+ case 'T':
+ if (!strcmp(argv[argi], "list")) {
+ mpt1327_channel_list();
+ return 0;
+ }
+ rc = mpt1327_channel_by_short_name(argv[argi]);
+ 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", argv[argi]);
+ return -EINVAL;
+ }
+ OPT_ARRAY(num_chan_type, chan_type, rc)
+ break;
+ case 'O':
+ sys = 0x0000;
+ rc = read_sys("OID", argv[argi + 0], 7);
+ if (rc < 0)
+ return rc;
+ sys = sys | (rc << 7);
+ rc = read_sys("NDD", argv[argi + 1], 4);
+ if (rc < 0)
+ return rc;
+ sys = sys | (rc << 3);
+ rc = read_sys("LAB", argv[argi + 2], 3);
+ if (rc < 0)
+ return rc;
+ sys = sys | rc;
+ break;
+ case 'N':
+ sys = 0x4000;
+ rc = read_sys("NET", argv[argi + 0], 2);
+ if (rc < 0)
+ return rc;
+ sys = sys | (rc << 12);
+ rc = read_sys("NDD", argv[argi + 1], 9);
+ if (rc < 0)
+ return rc;
+ sys = sys | (rc << 3);
+ rc = read_sys("LAB", argv[argi + 2], 3);
+ if (rc < 0)
+ return rc;
+ sys = sys | rc;
+ break;
+ case 'S':
+ p = strchr(argv[argi], '=');
+ if (!p) {
+ fprintf(stderr, "Given sysdef parameter '%s' requires '=' character to set value, use '-h' for help!\n", argv[argi]);
+ return -EINVAL;
+ }
+ p++;
+ if (!strncasecmp(argv[argi], "wt=", p - argv[argi])) {
+ wt = atoi(p);
+ if (wt != 5 && wt != 10 && wt != 15) {
+sysdef_oor:
+ fprintf(stderr, "Given sysdef parameter '%s' out of range, use '-h' for help!\n", argv[argi]);
+ return -EINVAL;
+ }
+ } else
+ if (!strncasecmp(argv[argi], "per=", p - argv[argi])) {
+ per = atoi(p);
+ if (per < 0 || per >31)
+ goto sysdef_oor;
+ } else
+ if (!strncasecmp(argv[argi], "pon=", p - argv[argi])) {
+ pon = atoi(p);
+ if (pon != 0 && pon != 1)
+ goto sysdef_oor;
+ } else
+ if (!strncasecmp(argv[argi], "timeout=", p - argv[argi])) {
+ timeout = atoi(p);
+ } else
+ {
+ fprintf(stderr, "Given sysdef parameter '%s' unknown, use '-h' for help!\n", argv[argi]);
+ return -EINVAL;
+ }
+ break;
+ case 'Q':
+ if (!strcasecmp(argv[argi], "auto"))
+ squelch_db = 0.0;
+ else
+ squelch_db = atof(argv[argi]);
+ break;
+ default:
+ return main_mobile_handle_options(short_option, argi, argv);
+ }
+
+ return 1;
+}
+
+int main(int argc, char *argv[])
+{
+ int rc, argi;
+ const char *station_id = "";
+ int mandatory = 0;
+ int i;
+
+ /* init tones */
+ init_freiton();
+ init_besetzton();
+// init_ansage();
+
+ console_digits = "0123456789*#";
+ main_mobile_init();
+
+ /* handle options / config file */
+ add_options();
+ rc = options_config_file(argc, argv, "~/.osmocom/analog/mpt1327.conf", handle_options);
+ if (rc < 0)
+ return 0;
+ argi = options_command_line(argc, argv, handle_options);
+ if (argi <= 0)
+ return argi;
+
+ if (argi < argc) {
+ station_id = argv[argi];
+ if (strlen(station_id) != 7) {
+ printf("Given station ID '%s' does not have 4 digits\n", station_id);
+ return 0;
+ }
+ }
+
+ if (!num_kanal) {
+ printf("No channel (\"Kanal\") is specified, I suggest channel 1.\n\n");
+ mandatory = 1;
+ }
+ if (use_sdr) {
+ /* set audiodev */
+ for (i = 0; i < num_kanal; i++)
+ audiodev[i] = "sdr";
+ num_audiodev = num_kanal;
+ /* set channel types for more than 1 channel */
+ if (num_kanal > 1 && num_chan_type == 0) {
+ chan_type[0] = CHAN_TYPE_CC;
+ for (i = 1; i < num_kanal; i++)
+ chan_type[i] = CHAN_TYPE_TC;
+ num_chan_type = num_kanal;
+ }
+
+ }
+ if (num_kanal == 1 && num_audiodev == 0)
+ num_audiodev = 1; /* use default */
+ if (num_kanal != num_audiodev) {
+ fprintf(stderr, "You need to specify as many sound devices as you have channels.\n");
+ exit(0);
+ }
+ if (num_kanal == 1 && num_chan_type == 0)
+ num_chan_type = 1; /* use default */
+ if (num_kanal != num_chan_type) {
+ fprintf(stderr, "You need to specify as many channel types as you have channels.\n");
+ exit(0);
+ }
+
+ if (sys < 0) {
+ fprintf(stderr, "No System Identity Code is specified, make them match with your radio unit.\n\n");
+ mandatory = 1;
+ }
+ if (isinf(squelch_db) && pon == 0) {
+ fprintf(stderr, "'Pressel On' message (PON) and squelch are turned off. Enable one of them.\n\n");
+ mandatory = 1;
+ }
+ if (!isinf(squelch_db) && pon == 1) {
+ fprintf(stderr, "'Pressel On' message (PON) and squelch are turned on. Disable one of them.\n\n");
+ mandatory = 1;
+ }
+ if (pon && timeout <= per) {
+ fprintf(stderr, "The defined timeout value is lower than the Periodic message interval (PER). Define a greater timeout.\n\n");
+ mandatory = 1;
+ }
+ if (pon && (timeout && !per)) {
+ fprintf(stderr, "You must enable Periodic message interval (PER), if you use timeout (and have no squelch).\n\n");
+ mandatory = 1;
+ }
+ if (!pon && !timeout) {
+ fprintf(stderr, "Warning: 'Pressel On' message (PON) and timeout is both disabled. There will be no way to detect loss of Radio Unit.\n\n");
+ }
+
+ if (do_de_emphasis || do_pre_emphasis) {
+ printf("Don't use pre-/de-emphasis, it is not used for Speech, nor for signaling.\n\n");
+ mandatory = 1;
+ }
+
+ if (mandatory) {
+ print_help(argv[0]);
+ return 0;
+ }
+
+ /* no SDR, no squelch */
+ if (!use_sdr && !isinf(squelch_db)) {
+ fprintf(stderr, "Cannot use squelch without SDR! Analog receivers don't give use RSSI.\n");
+ goto fail;
+ }
+
+ printf("Using Sysdef 0x%04x:\n", sys);
+ if (!(sys & 0x4000)) {
+ printf("OID=%d NDD=%d LAB=%d\n", (sys >> 7) & 0x7f, (sys >> 3) & 0xf, sys & 0x7);
+ } else {
+ printf("NET=%d NDD=%d LAB=%d\n", (sys >> 12) & 0x3, (sys >> 3) & 0x1ff, sys & 0x7);
+ }
+
+ /* inits */
+ fm_init(fast_math);
+ dsp_init();
+ init_codeword();
+ init_sysdef(sys, wt, per, pon, timeout);
+
+ /* create transceiver instance */
+ for (i = 0; i < num_kanal; i++) {
+ rc = mpt1327_create(band, kanal[i], chan_type[i], audiodev[i], use_sdr, samplerate, rx_gain, tx_gain, write_rx_wave, write_tx_wave, read_rx_wave, read_tx_wave, loopback, squelch_db);
+ if (rc < 0) {
+ fprintf(stderr, "Failed to create transceiver instance. Quitting!\n");
+ goto fail;
+ }
+ printf("base station on channel %s ready, please tune transmitter to %.4f MHz and receiver to %.4f MHz. (%s %.3f MHz offset)\n", kanal[i], mpt1327_channel2freq(band, atoi(kanal[i]), 0) / 1e6, mpt1327_channel2freq(band, atoi(kanal[i]), 1) / 1e6, mpt1327_band_name(band), mpt1327_channel2freq(band, atoi(kanal[i]), 2) / 1e6);
+ }
+
+ mpt1327_check_channels();
+
+ main_mobile("mpt1327", &quit, latency, interval, NULL, station_id, 7);
+
+fail:
+ /* destroy transceiver instance */
+ while (sender_head)
+ mpt1327_destroy(sender_head);
+
+ /* exits */
+ fm_exit();
+ flush_units();
+
+ options_free();
+
+ return 0;
+}
+
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