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chan_quectel.c
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chan_quectel.c
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/*
* chan_quectel
*
* Copyright (C) 2011-2015
* bg <[email protected]>
* http://www.e1550.mobi
*
* chan_quectel is based on chan_datacard by
*
* Artem Makhutov <[email protected]>
* http://www.makhutov.org
*
* Dmitry Vagin <[email protected]>
*
* chan_datacard is based on chan_mobile by Digium
* (Mark Spencer <[email protected]>)
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2. See the LICENSE file
* at the top of the source tree.
*/
/*! \file
*
* \brief UMTS Voice Quectel channel driver
*
* \author Artem Makhutov <[email protected]>
* \author Dave Bowerman <[email protected]>
* \author Dmitry Vagin <[email protected]>
* \author bg <[email protected]>
* \author Max von Buelow <[email protected]>
*
* \ingroup channel_drivers
*/
#include "ast_config.h"
#if ASTERISK_VERSION_NUM < 140000 /* 14- */
ASTERISK_FILE_VERSION(__FILE__, "$Rev: " PACKAGE_REVISION " $")
#endif /* 14- */
#include <asterisk/stringfields.h> /* AST_DECLARE_STRING_FIELDS for asterisk/manager.h */
#include <asterisk/manager.h>
#include <asterisk/dsp.h>
#include <asterisk/callerid.h>
#include <asterisk/module.h> /* AST_MODULE_LOAD_DECLINE ... */
#include <asterisk/timing.h> /* ast_timer_open() ast_timer_fd() */
#include <sys/stat.h> /* S_IRUSR | S_IRGRP | S_IROTH */
#include <termios.h> /* struct termios tcgetattr() tcsetattr() */
#include <pthread.h> /* pthread_t pthread_kill() pthread_join() */
#include <fcntl.h> /* O_RDWR O_NOCTTY */
#include <signal.h> /* SIGURG */
#include "ast_compat.h" /* asterisk compatibility fixes */
#if ASTERISK_VERSION_NUM >= 130000 /* 13+ */
#include <asterisk/stasis_channels.h>
#include <asterisk/format_cache.h>
#endif /* ^13+ */
#include "chan_quectel.h"
#include "at_response.h" /* at_res_t */
#include "at_queue.h" /* struct at_queue_task_cmd at_queue_head_cmd() */
#include "at_command.h" /* at_cmd2str() */
#include "mutils.h" /* ITEMS_OF() */
#include "at_read.h"
#include "cli.h"
#include "app.h"
#include "manager.h"
#include "channel.h" /* channel_queue_hangup() */
#include "dc_config.h" /* dc_uconfig_fill() dc_gconfig_fill() dc_sconfig_fill() */
#include "pdiscovery.h" /* pdiscovery_lookup() pdiscovery_init() pdiscovery_fini() */
#include "smsdb.h"
#include "error.h"
#include "errno.h"
EXPORT_DEF const char * const dev_state_strs[4] = { "stop", "restart", "remove", "start" };
EXPORT_DEF public_state_t * gpublic;
#if ASTERISK_VERSION_NUM >= 100000 && ASTERISK_VERSION_NUM < 130000 /* 10-13 */
EXPORT_DEF struct ast_format chan_quectel_format;
EXPORT_DEF struct ast_format_cap * chan_quectel_format_cap;
#endif /* ^10-13 */
static snd_pcm_t *alsa_card_init(char *dev, snd_pcm_stream_t stream,struct pvt * pvt)
{
int err;
int direction;
snd_pcm_t *handle = NULL;
snd_pcm_hw_params_t *hwparams = NULL;
snd_pcm_sw_params_t *swparams = NULL;
struct pollfd pfd;
snd_pcm_uframes_t period_size = PERIOD_FRAMES * 4;
snd_pcm_uframes_t buffer_size = 0;
unsigned int rate = DESIRED_RATE;
snd_pcm_uframes_t start_threshold, stop_threshold;
err = snd_pcm_open(&handle, dev, stream, SND_PCM_NONBLOCK);
if (err < 0) {
ast_log(LOG_ERROR, "snd_pcm_open failed: %s\n", snd_strerror(err));
return NULL;
} else {
ast_debug(1, "Opening device %s in %s mode\n", dev, (stream == SND_PCM_STREAM_CAPTURE) ? "read" : "write");
}
hwparams = ast_alloca(snd_pcm_hw_params_sizeof());
memset(hwparams, 0, snd_pcm_hw_params_sizeof());
snd_pcm_hw_params_any(handle, hwparams);
err = snd_pcm_hw_params_set_access(handle, hwparams, SND_PCM_ACCESS_RW_INTERLEAVED);
if (err < 0)
ast_log(LOG_ERROR, "set_access failed: %s\n", snd_strerror(err));
err = snd_pcm_hw_params_set_format(handle, hwparams, format);
if (err < 0)
ast_log(LOG_ERROR, "set_format failed: %s\n", snd_strerror(err));
err = snd_pcm_hw_params_set_channels(handle, hwparams, 1);
if (err < 0)
ast_log(LOG_ERROR, "set_channels failed: %s\n", snd_strerror(err));
direction = 0;
err = snd_pcm_hw_params_set_rate_near(handle, hwparams, &rate, &direction);
if (rate != DESIRED_RATE)
ast_log(LOG_WARNING, "Rate not correct, requested %d, got %u\n", DESIRED_RATE, rate);
direction = 0;
err = snd_pcm_hw_params_set_period_size_near(handle, hwparams, &period_size, &direction);
if (err < 0)
ast_log(LOG_ERROR, "period_size(%lu frames) is bad: %s\n", period_size, snd_strerror(err));
else {
ast_debug(1, "Period size is %d\n", err);
}
buffer_size = 4096 * 2; /* period_size * 16; */
err = snd_pcm_hw_params_set_buffer_size_near(handle, hwparams, &buffer_size);
if (err < 0)
ast_log(LOG_WARNING, "Problem setting buffer size of %lu: %s\n", buffer_size, snd_strerror(err));
else {
ast_debug(1, "Buffer size is set to %d frames\n", err);
}
err = snd_pcm_hw_params(handle, hwparams);
if (err < 0)
ast_log(LOG_ERROR, "Couldn't set the new hw params: %s\n", snd_strerror(err));
swparams = ast_alloca(snd_pcm_sw_params_sizeof());
memset(swparams, 0, snd_pcm_sw_params_sizeof());
snd_pcm_sw_params_current(handle, swparams);
if (stream == SND_PCM_STREAM_PLAYBACK)
start_threshold = period_size;
else
start_threshold = 1;
err = snd_pcm_sw_params_set_start_threshold(handle, swparams, start_threshold);
if (err < 0)
ast_log(LOG_ERROR, "start threshold: %s\n", snd_strerror(err));
if (stream == SND_PCM_STREAM_PLAYBACK)
stop_threshold = buffer_size;
else
stop_threshold = buffer_size;
err = snd_pcm_sw_params_set_stop_threshold(handle, swparams, stop_threshold);
if (err < 0)
ast_log(LOG_ERROR, "stop threshold: %s\n", snd_strerror(err));
err = snd_pcm_sw_params(handle, swparams);
if (err < 0)
ast_log(LOG_ERROR, "sw_params: %s\n", snd_strerror(err));
err = snd_pcm_poll_descriptors_count(handle);
if (err <= 0)
ast_log(LOG_ERROR, "Unable to get a poll descriptors count, error is %s\n", snd_strerror(err));
if (err != 1) {
ast_debug(1, "Can't handle more than one device\n");
}
snd_pcm_poll_descriptors(handle, &pfd, err);
ast_debug(1, "Acquired fd %d from the poll descriptor\n", pfd.fd);
if (stream == SND_PCM_STREAM_CAPTURE)
pvt->audio_fd = pfd.fd;
else
writedev = pfd.fd;
return handle;
}
static int soundcard_init(struct pvt * pvt)
{
pvt->icard = alsa_card_init(CONF_UNIQ(pvt, alsadev), SND_PCM_STREAM_CAPTURE,pvt);
if (!pvt->icard) {
ast_log(LOG_ERROR, "Problem opening ALSA capture device %s \n",CONF_UNIQ(pvt, alsadev));
return -1;
}
pvt->ocard = alsa_card_init(CONF_UNIQ(pvt, alsadev), SND_PCM_STREAM_PLAYBACK,pvt);
if (!pvt->ocard) {
ast_log(LOG_ERROR, "Problem opening ALSA playback device %s \n",CONF_UNIQ(pvt, alsadev));
return -1;
}
ast_verb (2, "Sound Card %s Initialized\n", CONF_UNIQ(pvt, alsadev));
snd_pcm_prepare(pvt->icard);
snd_pcm_drop(pvt->icard);
return writedev;}
static int public_state_init(struct public_state * state);
/*!
* Get status of the quectel. It might happen that the device disappears
* (e.g. due to a USB unplug).
*
* \return 0 if device seems ok, non-0 if it seems not available
*/
static int port_status (int fd)
{
struct termios t;
if (fd < 0)
{
return -1;
}
return tcgetattr (fd, &t);
}
#/* return length of lockname */
static int lock_build(const char * devname, char * buf, unsigned length)
{
const char * basename;
char resolved_path[PATH_MAX];
/* follow symlinks */
if(realpath(devname, resolved_path) != NULL)
devname = resolved_path;
basename = strrchr(devname, '/');
if(basename)
basename++;
else
basename = devname;
/* NOTE: use system system wide lock directory */
#if defined(__FreeBSD__)
return snprintf(buf, length, "/var/spool/lock/LCK..%s", basename);
#else
return snprintf(buf, length, "/var/lock/LCK..%s", basename);
#endif
}
#/* return 0 on error */
static int lock_create(const char * lockfile)
{
int fd;
int len = 0;
char pidb[21];
fd = open(lockfile, O_WRONLY | O_CREAT | O_TRUNC, S_IRUSR | S_IRGRP | S_IROTH);
if(fd >= 0)
{
/* NOTE: bg: i assume next open reuse same fd - not thread-safe */
len = snprintf(pidb, sizeof(pidb), "%d %d", getpid(), fd);
len = write(fd, pidb, len);
close(fd);
} else {
ast_log(LOG_ERROR, "open('%s') failed: %s\n", lockfile, strerror(errno));
}
return len;
}
#/* return pid of owner, 0 if free */
EXPORT_DEF int lock_try(const char * devname, char ** lockname)
{
int fd;
int len;
int pid = 0;
int assigned;
int fd2;
char name[1024];
char buffer[65];
lock_build(devname, name, sizeof(name));
/* FIXME: rise conditions: some time between lock check and got lock */
fd = open(name, O_RDONLY);
if(fd >= 0)
{
len = read(fd, buffer, sizeof(buffer) - 1);
if(len > 0)
{
buffer[len] = 0;
assigned = sscanf(buffer, "%d %d", &len, &fd2);
if(assigned > 0 && kill(len, 0) == 0)
{
if(len == getpid() && assigned > 1)
{
if(port_status(fd2) == 0)
pid = len;
}
else
pid = len;
}
}
close(fd);
}
if(pid == 0)
{
unlink(name);
lock_create(name);
*lockname = ast_strdup(name);
}
return pid;
}
#/* */
EXPORT_DEF void closetty(int fd, char ** lockfname)
{
close(fd);
/* remove lock */
unlink(*lockfname);
ast_free(*lockfname);
*lockfname = NULL;
}
EXPORT_DEF int opentty (const char* dev, char ** lockfile, int typ)
{
int flags;
int pid;
int fd;
struct termios term_attr;
char buf[40];
pid = lock_try(dev, lockfile);
if(pid != 0)
{
ast_log (LOG_WARNING, "%s already used by process %d\n", dev, pid);
return -1;
}
fd = open(dev, O_RDWR | O_NOCTTY);
if (fd < 0)
{
flags = errno;
closetty(fd, lockfile);
snprintf(buf, sizeof(buf), "Open Failed\r\nErrorCode: %d", flags);
manager_event_message_raw("QuectelPortFail", dev, buf);
ast_log (LOG_WARNING, "unable to open %s: %s\n", dev, strerror(flags));
return -1;
}
/* Put the terminal into exclusive mode. All other open(2)s by
* non-root will fail with EBUSY. */
if (ioctl(fd, TIOCEXCL) != 0) {
ast_log(LOG_WARNING, "ioctl(TIOCEXCL) failed for %s: %s\n", dev, strerror(errno));
}
flags = fcntl(fd, F_GETFD);
if (flags == -1 || fcntl(fd, F_SETFD, flags | FD_CLOEXEC) == -1)
{
flags = errno;
closetty(fd, lockfile);
ast_log (LOG_WARNING, "fcntl(F_GETFD/F_SETFD) failed for %s: %s\n", dev, strerror(flags));
return -1;
}
if (tcgetattr (fd, &term_attr) != 0)
{
flags = errno;
closetty(fd, lockfile);
ast_log (LOG_WARNING, "tcgetattr() failed for %s: %s\n", dev, strerror(flags));
return -1;
}
if (typ = 1) term_attr.c_cflag = B115200 | CS8 | CREAD | CRTSCTS | CLOCAL;
else term_attr.c_cflag = B115200 | CS8 | CREAD | CRTSCTS;
term_attr.c_iflag = 0;
term_attr.c_oflag = 0;
term_attr.c_lflag = 0;
term_attr.c_cc[VMIN] = 1;
term_attr.c_cc[VTIME] = 0;
if (tcsetattr (fd, TCSAFLUSH, &term_attr) != 0)
{
ast_log (LOG_WARNING, "tcsetattr(TCSAFLUSH) failed for %s: %s\n", dev, strerror(errno));
}
return fd;
}
#/* phone monitor thread pvt cleanup */
static void disconnect_quectel (struct pvt* pvt)
{
struct cpvt * cpvt, * next;
if (!PVT_NO_CHANS(pvt))
{
ast_debug (1, "[%s] Quectel disconnecting, hanging up channels\n", PVT_ID(pvt));
for(cpvt = pvt->chans.first; cpvt; cpvt = next)
{
next = cpvt->entry.next;
at_hangup_immediality(cpvt);
CPVT_RESET_FLAGS(cpvt, CALL_FLAG_NEED_HANGUP);
change_channel_state(cpvt, CALL_STATE_RELEASED, 0);
}
}
at_queue_flush(pvt);
pvt->last_dialed_cpvt = NULL;
if (strcmp(CONF_UNIQ(pvt, quec_uac),"1") == 0) {
if (pvt->icard) snd_pcm_close(pvt->icard);
if (pvt->ocard) snd_pcm_close(pvt->ocard);
}
else closetty (pvt->audio_fd, &pvt->alock);
closetty (pvt->data_fd, &pvt->dlock);
pvt->data_fd = -1;
pvt->audio_fd = -1;
if(pvt->dsp)
ast_dsp_digitreset(pvt->dsp);
pvt_on_remove_last_channel(pvt);
/* pvt->a_write_rb */
pvt->dtmf_digit = 0;
pvt->rings = 0;
// else
{
/* unaffected in case of restart */
pvt->use_ucs2_encoding = 0;
pvt->gsm_reg_status = -1;
pvt->rssi = 0;
pvt->linkmode = 0;
pvt->linksubmode = 0;
ast_copy_string (pvt->provider_name, "NONE", sizeof (pvt->provider_name));
pvt->manufacturer[0] = '\0';
pvt->model[0] = '\0';
pvt->firmware[0] = '\0';
pvt->imei[0] = '\0';
pvt->imsi[0] = '\0';
pvt->has_subscriber_number = 0;
ast_copy_string (pvt->subscriber_number, "Unknown", sizeof (pvt->subscriber_number));
pvt->location_area_code[0] = '\0';
pvt->cell_id[0] = '\0';
pvt->sms_scenter[0] = '\0';
pvt->gsm_registered = 0;
pvt->has_sms = 0;
pvt->has_voice = 0;
pvt->has_call_waiting = 0;
}
pvt->connected = 0;
pvt->initialized = 0;
pvt->has_call_waiting = 0;
/* FIXME: LOST real device state */
pvt->dialing = 0;
pvt->ring = 0;
pvt->cwaiting = 0;
pvt->outgoing_sms = 0;
pvt->incoming_sms_index = -1U;
pvt->incoming_mms_trx_id = NULL;
pvt->connect_reply = NULL;
pvt->volume_sync_step = VOLUME_SYNC_BEGIN;
pvt->current_state = DEV_STATE_STOPPED;
/* clear statictics */
memset(&pvt->stat, 0, sizeof(pvt->stat));
ast_copy_string (PVT_STATE(pvt, data_tty), CONF_UNIQ(pvt, data_tty), sizeof (PVT_STATE(pvt, data_tty)));
ast_copy_string (PVT_STATE(pvt, audio_tty), CONF_UNIQ(pvt, audio_tty), sizeof (PVT_STATE(pvt, audio_tty)));
ast_verb (3, "[%s] Quectel has disconnected\n", PVT_ID(pvt));
manager_event_device_status(PVT_ID(pvt), "Disconnect");
}
#define SMS_INBOX_BIT(index) ((sms_inbox_item_type)(1) << (index % SMS_INBOX_ITEM_BITS))
#define SMS_INBOX_INDEX(index) (index / SMS_INBOX_ITEM_BITS)
static int is_sms_inbox_index_valid(const struct pvt* pvt, int index)
{
if (index < 0 || index >= (int) SMS_INDEX_MAX) {
ast_log(LOG_WARNING, "[%s] SMS index [%d] out of range\n", PVT_ID(pvt), index);
return 0;
}
return 1;
}
EXPORT_DEF int sms_inbox_set(struct pvt* pvt, int index)
{
if (!is_sms_inbox_index_valid(pvt, index)) {
return 0;
}
pvt->incoming_sms_inbox[SMS_INBOX_INDEX(index)] |= SMS_INBOX_BIT(index);
return 1;
}
EXPORT_DEF int sms_inbox_clear(struct pvt* pvt, int index)
{
if (!is_sms_inbox_index_valid(pvt, index)) {
return 0;
}
pvt->incoming_sms_inbox[SMS_INBOX_INDEX(index)] &= ~SMS_INBOX_BIT(index);
return 1;
}
EXPORT_DEF int is_sms_inbox_set(const struct pvt* pvt, int index)
{
if (!is_sms_inbox_index_valid(pvt, index)) {
return 0;
}
return pvt->incoming_sms_inbox[SMS_INBOX_INDEX(index)] & SMS_INBOX_BIT(index);
}
#undef SMS_INBOX_INDEX
#undef SMS_INBOX_BIT
/* anybody wrote some to device before me, and not read results, clean pending results here */
#/* */
EXPORT_DEF void clean_read_data(const char * devname, int fd)
{
char buf[2*1024];
struct ringbuffer rb;
int iovcnt;
int t;
rb_init (&rb, buf, sizeof (buf));
for (t = 0; at_wait(fd, &t); t = 0)
{
iovcnt = at_read (fd, devname, &rb);
ast_debug (4, "[%s] drop %u bytes of pending data before initialization\n", devname, (unsigned)rb_used(&rb));
/* drop read */
rb_init (&rb, buf, sizeof (buf));
if (iovcnt == 0)
break;
}
}
static void handle_expired_reports(struct pvt *pvt)
{
char dst[SMSDB_DST_MAX_LEN];
char payload[SMSDB_PAYLOAD_MAX_LEN];
ssize_t payload_len = smsdb_outgoing_purge_one(dst, payload);
if (payload_len >= 0) {
ast_verb (3, "[%s] TTL payload: %.*s\n", PVT_ID(pvt), (int) payload_len, payload);
channel_var_t vars[] =
{
{ "SMS_REPORT_PAYLOAD", payload },
{ "SMS_REPORT_TS", "" },
{ "SMS_REPORT_DT", "" },
{ "SMS_REPORT_SUCCESS", "0" },
{ "SMS_REPORT_TYPE", "t" },
{ "SMS_REPORT", "" },
{ NULL, NULL },
};
start_local_channel(pvt, "report", dst, vars);
manager_event_report(PVT_ID(pvt), payload, payload_len, "", "", 0, 2, "");
}
}
/*!
* \brief Check if the module is unloading.
* \retval 0 not unloading
* \retval 1 unloading
*/
static void* do_monitor_phone (void* data)
{
struct pvt* pvt = (struct pvt*) data;
at_res_t at_res;
const struct at_queue_cmd * ecmd;
int t;
char buf[2*1024];
struct ringbuffer rb;
struct iovec iov[2];
int iovcnt;
char dev[sizeof(PVT_ID(pvt))];
int fd;
int read_result = 0;
pvt->timeout = DATA_READ_TIMEOUT;
rb_init (&rb, buf, sizeof (buf));
ast_mutex_lock (&pvt->lock);
/* 4 reduce locking time make copy of this readonly fields */
fd = pvt->data_fd;
ast_copy_string(dev, PVT_ID(pvt), sizeof(dev));
clean_read_data(dev, fd);
/* schedule quectel initilization */
if (at_enqueue_initialization(&pvt->sys_chan, CMD_AT))
{
ast_log (LOG_ERROR, "[%s] Error adding initialization commands to queue\n", dev);
goto e_cleanup;
}
/* Poll first SMS, if any */
if (at_poll_sms(pvt) == 0)
{
ast_debug (1, "[%s] Polling first SMS message\n", PVT_ID(pvt));
}
ast_mutex_unlock (&pvt->lock);
while (1)
{
ast_mutex_lock (&pvt->lock);
handle_expired_reports(pvt);
if (port_status (pvt->data_fd))
{
ast_log (LOG_ERROR, "[%s] Lost connection to Quectel\n", dev);
goto e_cleanup;
}
if (strcmp(CONF_UNIQ(pvt, quec_uac),"1") != 0) {
if (port_status (pvt->audio_fd))
{
ast_log (LOG_ERROR, "[%s] Lost connection to Quectel\n", dev);
goto e_cleanup;
}
}
if(pvt->terminate_monitor)
{
ast_log (LOG_NOTICE, "[%s] stopping by %s request\n", dev, dev_state2str(pvt->desired_state));
goto e_restart;
}
t = at_queue_timeout(pvt);
if(t < 0)
t = pvt->timeout;
ast_mutex_unlock (&pvt->lock);
if (!at_wait (fd, &t))
{
ast_mutex_lock (&pvt->lock);
ecmd = at_queue_head_cmd (pvt);
if(ecmd)
{
ast_log (LOG_ERROR, "[%s] timedout while waiting '%s' in response to '%s'\n", dev, at_res2str (ecmd->res), at_cmd2str (ecmd->cmd));
goto e_cleanup;
}
at_enqueue_ping(&pvt->sys_chan);
ast_mutex_unlock (&pvt->lock);
continue;
}
/* FIXME: access to device not locked */
iovcnt = at_read (fd, dev, &rb);
if (iovcnt < 0)
{
break;
}
ast_mutex_lock (&pvt->lock);
PVT_STAT(pvt, d_read_bytes) += iovcnt;
ast_mutex_unlock (&pvt->lock);
ast_verb (100, "[%s] at_read_result_iov\n", dev);
while ((iovcnt = at_read_result_iov (pvt, &read_result, &rb, iov)) > 0)
{
ast_verb (100, "[%s] at_read_result_classification\n", dev);
at_res = at_read_result_classification (&rb, iov[0].iov_len + iov[1].iov_len);
ast_mutex_lock (&pvt->lock);
PVT_STAT(pvt, at_responses) ++;
ast_verb (100, "[%s] %s: classified\n", dev, __func__);
if (at_response (pvt, iov, iovcnt, at_res) || at_queue_run(pvt))
{
goto e_cleanup;
}
ast_mutex_unlock (&pvt->lock);
}
}
ast_mutex_lock (&pvt->lock);
e_cleanup:
if (!pvt->initialized)
{
// TODO: send monitor event
ast_verb (3, "[%s] Error initializing Quectel\n", dev);
}
/* it real, unsolicited disconnect */
pvt->terminate_monitor = 0;
e_restart:
disconnect_quectel (pvt);
// pvt->monitor_running = 0;
ast_mutex_unlock (&pvt->lock);
/* TODO: wakeup discovery thread after some delay */
return NULL;
}
static inline int start_monitor (struct pvt * pvt)
{
if (ast_pthread_create_background (&pvt->monitor_thread, NULL, do_monitor_phone, pvt) < 0)
{
pvt->monitor_thread = AST_PTHREADT_NULL;
return 0;
}
return 1;
}
#/* */
static void pvt_stop(struct pvt * pvt)
{
pthread_t id;
if(pvt->monitor_thread != AST_PTHREADT_NULL)
{
pvt->terminate_monitor = 1;
pthread_kill (pvt->monitor_thread, SIGURG);
id = pvt->monitor_thread;
ast_mutex_unlock (&pvt->lock);
pthread_join (id, NULL);
ast_mutex_lock (&pvt->lock);
pvt->terminate_monitor = 0;
pvt->monitor_thread = AST_PTHREADT_NULL;
}
// pvt->current_state = DEV_STATE_STOPPED;
}
#/* called with pvt lock hold */
static int pvt_discovery(struct pvt * pvt)
{
char devname[DEVNAMELEN];
char imei[IMEI_SIZE+1];
char imsi[IMSI_SIZE+1];
int resolved;
if(CONF_UNIQ(pvt, data_tty)[0] == 0 && CONF_UNIQ(pvt, audio_tty)[0] == 0) {
char * data_tty;
char * audio_tty;
ast_copy_string(devname, PVT_ID(pvt), sizeof(devname));
ast_copy_string(imei, CONF_UNIQ(pvt, imei), sizeof(imei));
ast_copy_string(imsi, CONF_UNIQ(pvt, imsi), sizeof(imsi));
ast_debug(3, "[%s] Trying ports discovery for%s%s%s%s\n",
PVT_ID(pvt),
imei[0] == 0 ? "" : " IMEI ",
imei,
imsi[0] == 0 ? "" : " IMSI ",
imsi
);
ast_mutex_unlock (&pvt->lock);
//sleep(10); // test
resolved = pdiscovery_lookup(devname, imei, imsi, &data_tty, &audio_tty);
ast_mutex_lock (&pvt->lock);
if(resolved) {
ast_copy_string (PVT_STATE(pvt, data_tty), data_tty, sizeof (PVT_STATE(pvt, data_tty)));
ast_copy_string (PVT_STATE(pvt, audio_tty), audio_tty, sizeof (PVT_STATE(pvt, audio_tty)));
ast_free(audio_tty);
ast_free(data_tty);
ast_verb (3, "[%s]%s%s%s%s found on data_tty=%s audio_tty=%s\n",
PVT_ID(pvt),
imei[0] == 0 ? "" : " IMEI ",
imei,
imsi[0] == 0 ? "" : " IMSI ",
imsi,
PVT_STATE(pvt, data_tty),
PVT_STATE(pvt, audio_tty)
);
} else {
ast_debug(3, "[%s] Not found ports for%s%s%s%s\n",
PVT_ID(pvt),
imei[0] == 0 ? "" : " IMEI ",
imei,
imsi[0] == 0 ? "" : " IMSI ",
imsi
);
}
} else {
ast_copy_string (PVT_STATE(pvt, data_tty), CONF_UNIQ(pvt, data_tty), sizeof (PVT_STATE(pvt, data_tty)));
ast_copy_string (PVT_STATE(pvt, audio_tty), CONF_UNIQ(pvt, audio_tty), sizeof (PVT_STATE(pvt, audio_tty)));
resolved = 1;
}
return ! resolved;
}
#/* */
static void pvt_start(struct pvt * pvt)
{
long flags;
/* prevent start_monitor() multiple times and on turned off devices */
if (pvt->connected || pvt->desired_state != DEV_STATE_STARTED) {
// || (pvt->monitor_thread != AST_PTHREADT_NULL &&
// (pthread_kill(pvt->monitor_thread, 0) == 0 || errno != ESRCH))
return;
}
pvt_stop(pvt);
if (pvt_discovery(pvt)) {
return;
}
ast_verb(3, "[%s] Trying to connect on %s...\n", PVT_ID(pvt), PVT_STATE(pvt, data_tty));
pvt->data_fd = opentty(PVT_STATE(pvt, data_tty), &pvt->dlock, 0);
if (pvt->data_fd < 0) {
return;
}
if (strcmp(CONF_UNIQ(pvt, quec_uac),"1") == 0) {
if (pvt->audio_fd < 0) if (soundcard_init(pvt) < 0) disconnect_quectel (pvt);
}
else {
// TODO: delay until device activate voice call or at pvt_on_create_1st_channel()
pvt->audio_fd = opentty(PVT_STATE(pvt, audio_tty), &pvt->alock, pvt->is_simcom);
if (pvt->audio_fd < 0) {
goto cleanup_datafd;
}
}
if (!start_monitor(pvt)) {
if (strcmp(CONF_UNIQ(pvt, quec_uac),"1") == 0) goto cleanup_datafd;
else goto cleanup_audiofd;
}
/* Set data_fd and audio_fd to non-blocking. This appears to fix
* incidental deadlocks occurring with Asterisk 12+ or with
* jitterbuffer enabled. Apparently Asterisk can call the
* (audio) read function for sockets that don't have data to
* read(). */
flags = fcntl(pvt->data_fd, F_GETFL);
fcntl(pvt->data_fd, F_SETFL, flags | O_NONBLOCK);
if (strcmp(CONF_UNIQ(pvt, quec_uac),"1") != 0) {
flags = fcntl(pvt->audio_fd, F_GETFL);
fcntl(pvt->audio_fd, F_SETFL, flags | O_NONBLOCK);
}
pvt->connected = 1;
pvt->current_state = DEV_STATE_STARTED;
manager_event_device_status(PVT_ID(pvt), "Connect");
ast_verb(3, "[%s] Quectel has connected, initializing...\n", PVT_ID(pvt));
return;
cleanup_audiofd:
closetty(pvt->audio_fd, &pvt->alock);
cleanup_datafd:
closetty(pvt->data_fd, &pvt->dlock);
}
#/* */
static void pvt_free(struct pvt * pvt)
{
at_queue_flush(pvt);
if(pvt->dsp)
ast_dsp_free(pvt->dsp);
ast_mutex_unlock(&pvt->lock);
ast_free(pvt);
}
#/* */
static void pvt_destroy(struct pvt * pvt)
{
ast_mutex_lock(&pvt->lock);
pvt_stop(pvt);
pvt_free(pvt);
}
static void * do_discovery(void * arg)
{
struct public_state * state = (struct public_state *) arg;
struct pvt * pvt;
while(state->unloading_flag == 0)
{
/* read lock for avoid deadlock when IMEI/IMSI discovery */
AST_RWLIST_RDLOCK(&state->devices);
AST_RWLIST_TRAVERSE(&state->devices, pvt, entry)
{
ast_mutex_lock (&pvt->lock);
pvt->must_remove = 0;
if(pvt->restart_time == RESTATE_TIME_NOW && pvt->desired_state != pvt->current_state)
{
switch(pvt->desired_state)
{
case DEV_STATE_RESTARTED:
pvt_stop(pvt);
pvt->desired_state = DEV_STATE_STARTED;
/* fall through */
case DEV_STATE_STARTED:
pvt_start(pvt);
break;
case DEV_STATE_REMOVED:
pvt_stop(pvt);
pvt->must_remove = 1;
break;
case DEV_STATE_STOPPED:
pvt_stop(pvt);
}
}
ast_mutex_unlock (&pvt->lock);
}
AST_RWLIST_UNLOCK (&state->devices);
/* actual device removal here for avoid long (discovery) time write lock on device list in loop above */
AST_RWLIST_WRLOCK(&state->devices);
AST_RWLIST_TRAVERSE_SAFE_BEGIN(&state->devices, pvt, entry)
{
ast_mutex_lock(&pvt->lock);
if(pvt->must_remove)
{
AST_RWLIST_REMOVE_CURRENT(entry);
pvt_free(pvt);
} else
ast_mutex_unlock(&pvt->lock);
}
AST_RWLIST_TRAVERSE_SAFE_END;
AST_RWLIST_UNLOCK(&state->devices);
/* Go to sleep (only if we are not unloading) */
if (state->unloading_flag == 0)
{
sleep(SCONF_GLOBAL(state, discovery_interval));
}
}
return NULL;
}
#/* */
static int discovery_restart(public_state_t * state)
{
if(state->discovery_thread == AST_PTHREADT_STOP)
return 0;
ast_mutex_lock(&state->discovery_lock);
if (state->discovery_thread == pthread_self()) {
ast_mutex_unlock(&state->discovery_lock);
ast_log(LOG_WARNING, "Cannot kill myself\n");
return -1;
}
if (state->discovery_thread != AST_PTHREADT_NULL) {
/* Wake up the thread */
pthread_kill(state->discovery_thread, SIGURG);
} else {
/* Start a new monitor */
if (ast_pthread_create_background(&state->discovery_thread, NULL, do_discovery, state) < 0) {
ast_mutex_unlock(&state->discovery_lock);
ast_log(LOG_ERROR, "Unable to start discovery thread\n");
return -1;
}
}
ast_mutex_unlock(&state->discovery_lock);
return 0;
}
#/* */
static void discovery_stop(public_state_t * state)
{
/* signal for discovery unloading */
state->unloading_flag = 1;