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-rw-r--r--src/telephone/main.c326
1 files changed, 326 insertions, 0 deletions
diff --git a/src/telephone/main.c b/src/telephone/main.c
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index 0000000..8bf604a
--- /dev/null
+++ b/src/telephone/main.c
@@ -0,0 +1,326 @@
+/* osmo-cc-alsa-endpoint main
+ *
+ * (C) 2020 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 <unistd.h>
+#include <errno.h>
+#include <signal.h>
+#include <string.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <termios.h>
+#include <sched.h>
+#include "../libdebug/debug.h"
+#include "../liboptions/options.h"
+#include "../libg711/g711.h"
+#include "telephone.h"
+
+telephone_t *telephone_ep = NULL;
+int num_kanal = 1;
+
+static const char *name = "alsa";
+static const char *audiodev = NULL;
+static int samplerate = 48000;
+static int latency = 50;
+static int rt_prio = 1;
+static const char *caller_id = "";
+static int early_audio = 0;
+static int autoalert = 0, autoanswer = 1;
+#define MAX_CC_ARGS 1024
+static int cc_argc = 0;
+static const char *cc_argv[MAX_CC_ARGS];
+
+static void print_usage(const char *app)
+{
+ printf("Usage: %s -a hw:<card>,<device> [<options>] [dialing]\n", app);
+}
+
+static void print_help()
+{
+ /* - - */
+ printf(" -h --help\n");
+ printf(" This help\n");
+ printf(" --config [~/]<path to config file>\n");
+ printf(" Give a config file to use. If it starts with '~/', path is at home dir.\n");
+ printf(" Each line in config file is one option, '-' or '--' must not be given!\n");
+ printf(" -v --verbose <level> | <level>,<category>[,<category>[,...]] | list\n");
+ printf(" Use 'list' to get a list of all levels and categories\n");
+ printf(" Verbose level: digit of debug level (default = '%d')\n", debuglevel);
+ printf(" Verbose level+category: level digit followed by one or more categories\n");
+ printf(" -> If no category is specified, all categories are selected\n");
+ printf(" -n --name <interface name>\n");
+ printf(" Give name of this interface. It will be sent in each call towards\n");
+ printf(" -I --caller-id <caller id>\n");
+ printf(" What caller ID to send on calls made from terminal. (default = '%s')\n", caller_id);
+ printf(" -A --auto alerting | answer | off\n");
+ printf(" An incoming call can be responded automatically with an alerting or an\n");
+ printf(" answer, or not be responded automatically. (default = 'answer')\n");
+ printf(" -E --early-audio\n");
+ printf(" Send early audio when call is not yet connected. Must be used in\n");
+ printf(" conjunction with --auto\n");
+ printf(" -a --audio-device hw:<card>,<device>\n");
+ printf(" Sound card and device number (default = '%s')\n", audiodev);
+ printf(" -s --samplerate <rate>\n");
+ printf(" Sample rate of sound device (default = '%d')\n", samplerate);
+ printf(" -b --buffer <ms>\n");
+ printf(" How many milliseconds are processed in advance (default = '%d')\n", latency);
+ printf(" -r --realtime <prio>\n");
+ printf(" Set prio: 0 to disable, 99 for maximum (default = %d)\n", rt_prio);
+ printf(" -C --cc \"<osmo-cc arg>\" [--cc ...]\n");
+ printf(" Pass arguments to Osmo-CC endpoint. Use '-cc help' for description.\n");
+}
+
+static void add_options(void)
+{
+ option_add('h', "help", 0);
+ option_add('v', "verbose", 1);
+ option_add('n', "name", 1);
+ option_add('I', "caller-id", 1);
+ option_add('A', "auto", 1);
+ option_add('E', "early-audio", 0);
+ option_add('a', "audio-device", 1);
+ option_add('s', "samplerate", 1);
+ option_add('b', "buffer", 1);
+ option_add('r', "realtime", 1);
+ option_add('C', "cc", 1);
+}
+
+static int handle_options(int short_option, int argi, char **argv)
+{
+ int rc;
+
+ switch (short_option) {
+ case 'h':
+ print_usage(argv[0]);
+ print_help();
+ return 0;
+ case 'v':
+ if (!strcasecmp(argv[argi], "list")) {
+ debug_list_cat();
+ return 0;
+ }
+ rc = parse_debug_opt(argv[argi]);
+ if (rc < 0) {
+ fprintf(stderr, "Failed to parse debug option, please use -h for help.\n");
+ return rc;
+ }
+ break;
+ case 'n':
+ name = options_strdup(argv[argi]);
+ break;
+ case 'I':
+ caller_id = options_strdup(argv[argi]);
+ break;
+ case 'A':
+ if (!strcasecmp(argv[argi], "alerting")) {
+ autoalert = 1;
+ autoanswer = 0;
+ } else
+ if (!strcasecmp(argv[argi], "answer")) {
+ autoalert = 0;
+ autoanswer = 1;
+ } else
+ if (!strcasecmp(argv[argi], "off")) {
+ autoalert = 0;
+ autoanswer = 0;
+ } else {
+ fprintf(stderr, "Unknown parameter '%s', please use -h for help.\n", argv[argi]);
+ return -EINVAL;
+ }
+ break;
+ case 'E':
+ early_audio = 1;
+ break;
+ case 'a':
+ audiodev = options_strdup(argv[argi]);
+ break;
+ case 's':
+ samplerate = atoi(argv[argi]);
+ break;
+ case 'b':
+ latency = atoi(argv[argi]);
+ break;
+ case 'r':
+ rt_prio = atoi(argv[argi]);
+ break;
+ case 'C':
+ if (!strcasecmp(argv[argi], "help")) {
+ osmo_cc_help();
+ return 0;
+ }
+ if (cc_argc == MAX_CC_ARGS) {
+ fprintf(stderr, "Too many osmo-cc args!\n");
+ break;
+ }
+ cc_argv[cc_argc++] = options_strdup(argv[argi]);
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 1;
+}
+
+static int quit = 0;
+void sighandler(int sigset)
+{
+ if (sigset == SIGHUP || sigset == SIGPIPE)
+ return;
+
+ fprintf(stderr, "\nSignal %d received.\n", sigset);
+
+ quit = 1;
+}
+
+static int get_char()
+{
+ struct timeval tv = {0, 0};
+ fd_set fds;
+ char c = 0;
+ int __attribute__((__unused__)) rc;
+
+ FD_ZERO(&fds);
+ FD_SET(0, &fds);
+ select(0+1, &fds, NULL, NULL, &tv);
+ if (FD_ISSET(0, &fds)) {
+ rc = read(0, &c, 1);
+ return c;
+ } else
+ return -1;
+}
+
+int main(int argc, char *argv[])
+{
+ int argi, rc;
+ const char *dialing = "";
+ struct termios term, term_orig;
+ char c;
+
+ g711_init();
+
+ telephone_ep = telephone_create();
+ if (!telephone_ep)
+ goto error;
+
+ cc_argv[cc_argc++] = options_strdup("remote auto");
+
+ /* handle options / config file */
+ add_options();
+ rc = options_config_file(argc, argv, "~/.osmocom/alsa/alsa.conf", handle_options);
+ if (rc < 0)
+ return 0;
+ argi = options_command_line(argc, argv, handle_options);
+ if (argi <= 0)
+ return argi;
+
+ if (argi < argc)
+ dialing = argv[argi];
+
+ rc = ui_init(dialing, autoalert, autoanswer);
+ if (rc) {
+ PDEBUG(DTEL, DEBUG_ERROR, "UI initializing failed!\n");
+ goto error;
+ }
+
+ rc = telephone_init(telephone_ep, name, caller_id, OSMO_CC_LOCATION_USER, early_audio, audiodev, samplerate, samplerate * latency / 1000);
+ if (rc) {
+ PDEBUG(DTEL, DEBUG_ERROR, "Endpoint initializing failed!\n");
+ goto error;
+ }
+
+ rc = osmo_cc_new(&telephone_ep->cc_ep, OSMO_CC_VERSION, name, OSMO_CC_LOCATION_USER, cc_message, NULL, telephone_ep, cc_argc, cc_argv);
+ if (rc < 0)
+ goto error;
+
+ /* real time priority */
+ 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);
+ }
+
+ /* prepare terminal */
+ tcgetattr(0, &term_orig);
+ term = term_orig;
+ term.c_lflag &= ~(ISIG|ICANON|ECHO);
+ term.c_cc[VMIN]=1;
+ term.c_cc[VTIME]=2;
+ tcsetattr(0, TCSANOW, &term);
+
+ signal(SIGINT, sighandler);
+ signal(SIGHUP, sighandler);
+ signal(SIGTERM, sighandler);
+ signal(SIGPIPE, sighandler);
+
+ while (!quit) {
+ int w;
+ c = get_char();
+ if (c == 3) {
+ /* quit */
+ if (clear_console_text)
+ clear_console_text();
+ printf("CTRL+c received, quitting!\n");
+ quit = 1;
+ continue;
+ }
+ process_timer();
+ alsa_work(telephone_ep);
+ rtp_work(telephone_ep);
+ do {
+ w = 0;
+ w |= osmo_cc_handle();
+ w |= ui_work(telephone_ep, c);
+ c = 0;
+ } while (w);
+ usleep(1000);
+ }
+
+ signal(SIGINT, SIG_DFL);
+ signal(SIGTSTP, SIG_DFL);
+ signal(SIGHUP, SIG_DFL);
+ signal(SIGTERM, SIG_DFL);
+ signal(SIGPIPE, SIG_DFL);
+
+ /* reset terminal */
+ tcsetattr(0, TCSANOW, &term_orig);
+
+ /* reset real time prio */
+ if (rt_prio > 0) {
+ struct sched_param schedp;
+
+ memset(&schedp, 0, sizeof(schedp));
+ schedp.sched_priority = 0;
+ sched_setscheduler(0, SCHED_OTHER, &schedp);
+ }
+
+error:
+ if (telephone_ep) {
+ osmo_cc_delete(&telephone_ep->cc_ep);
+ telephone_destroy(telephone_ep);
+ }
+
+ options_free();
+
+ return 0;
+}
+
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