static ftdm_status_t ftdm_gsm_state_advance(ftdm_channel_t *ftdmchan)
{
ftdm_log_chan(ftdmchan, STATE_ADVANCE_LOG_LEVEL , "Executing state handler for %s\n", ftdm_channel_state2str(ftdmchan->state));
ftdm_channel_complete_state(ftdmchan);
switch (ftdmchan->state) {
/* starting an incoming call */
case FTDM_CHANNEL_STATE_COLLECT:
{
}
break;
/* starting an outgoing call */
case FTDM_CHANNEL_STATE_DIALING:
{
uint32_t interval = 0;
ftdm_log_chan(ftdmchan, FTDM_LOG_DEBUG, "Starting outgoing call with interval %d\n", interval);
{
ftdm_gsm_span_data_t *gsm_data;
gsm_data = ftdmchan->span->signal_data;
gsm_data->call_id = g_outbound_call_id++;
wat_con_event_t con_event;
memset(&con_event, 0, sizeof(con_event));
ftdm_set_string(con_event.called_num.digits, ftdmchan->caller_data.dnis.digits);
ftdm_log(FTDM_LOG_DEBUG, "Dialing number %s\n", con_event.called_num.digits);
wat_con_req(ftdmchan->span->span_id, gsm_data->call_id , &con_event);
SEND_STATE_SIGNAL(FTDM_SIGEVENT_DIALING);
}
}
break;
/* incoming call was offered */
case FTDM_CHANNEL_STATE_RING:
/* notify the user about the new call */
ftdm_log(FTDM_LOG_INFO, "Answering Incomming Call\r\n");
SEND_STATE_SIGNAL(FTDM_SIGEVENT_START);
break;
/* the call is making progress */
case FTDM_CHANNEL_STATE_PROGRESS:
case FTDM_CHANNEL_STATE_PROGRESS_MEDIA:
{
SEND_STATE_SIGNAL(FTDM_SIGEVENT_PROGRESS_MEDIA);
ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_UP);
}
break;
/* the call was answered */
case FTDM_CHANNEL_STATE_UP:
{
if (ftdm_test_flag(ftdmchan, FTDM_CHANNEL_OUTBOUND)) {
SEND_STATE_SIGNAL(FTDM_SIGEVENT_UP);
}
else {
ftdm_gsm_span_data_t *gsm_data;
gsm_data = ftdmchan->span->signal_data;
wat_con_cfm(ftdmchan->span->span_id, gsm_data->call_id);
}
}
break;
/* just got hangup */
case FTDM_CHANNEL_STATE_HANGUP:
{
ftdm_gsm_span_data_t *gsm_data;
gsm_data = ftdmchan->span->signal_data;
wat_rel_req(ftdmchan->span->span_id, gsm_data->call_id);
gsm_data->call_id = 0;
SEND_STATE_SIGNAL(FTDM_SIGEVENT_STOP);
}
break;
case FTDM_CHANNEL_STATE_TERMINATING:
{
SEND_STATE_SIGNAL(FTDM_SIGEVENT_STOP);
}
break;
/* finished call for good */
case FTDM_CHANNEL_STATE_DOWN:
{
ftdm_channel_t *closed_chan;
closed_chan = ftdmchan;
ftdm_channel_close(&closed_chan);
ftdm_log_chan_msg(ftdmchan, FTDM_LOG_DEBUG, "State processing ended.\n");
SEND_STATE_SIGNAL(FTDM_SIGEVENT_STOP);
}
break;
/* INDICATE_RINGING doesn't apply to MFC/R2. maybe we could generate a tone */
case FTDM_CHANNEL_STATE_RINGING:
ftdm_log_chan_msg(ftdmchan, FTDM_LOG_DEBUG, "RINGING indicated, ignoring it as it doesn't apply to MFC/R2\n");
SEND_STATE_SIGNAL(FTDM_SIGEVENT_RINGING);
break;
/* put the r2 channel back to IDLE, close ftdmchan and set it's state as DOWN */
case FTDM_CHANNEL_STATE_RESET:
{
ftdm_log_chan_msg(ftdmchan, FTDM_LOG_DEBUG, "RESET indicated, putting the R2 channel back to IDLE\n");
ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_DOWN);
}
break;
default:
{
ftdm_log_chan(ftdmchan, FTDM_LOG_ERROR, "Unhandled channel state change: %s\n", ftdm_channel_state2str(ftdmchan->state));
}
break;
}
return FTDM_SUCCESS;
}
static ftdm_status_t state_advance(ftdm_channel_t *ftdmchan)
{
ftdm_status_t status;
ftdm_sigmsg_t sig;
pritap_t *pritap = ftdmchan->span->signal_data;
pritap_t *peer_pritap = pritap->peerspan->signal_data;
ftdm_log_chan(ftdmchan, FTDM_LOG_DEBUG, "processing state %s\n", ftdm_channel_state2str(ftdmchan->state));
memset(&sig, 0, sizeof(sig));
sig.chan_id = ftdmchan->chan_id;
sig.span_id = ftdmchan->span_id;
sig.channel = ftdmchan;
ftdm_channel_complete_state(ftdmchan);
switch (ftdmchan->state) {
case FTDM_CHANNEL_STATE_DOWN:
{
ftdm_channel_t *fchan = ftdmchan;
/* Destroy the peer data first */
if (fchan->call_data) {
ftdm_channel_t *peerchan = fchan->call_data;
ftdm_channel_t *pchan = peerchan;
ftdm_channel_lock(peerchan);
pchan->call_data = NULL;
pchan->pflags = 0;
ftdm_channel_close(&pchan);
ftdm_channel_unlock(peerchan);
} else {
ftdm_log_chan_msg(ftdmchan, FTDM_LOG_CRIT, "No call data?\n");
}
ftdmchan->call_data = NULL;
ftdmchan->pflags = 0;
ftdm_channel_close(&fchan);
}
break;
case FTDM_CHANNEL_STATE_PROGRESS:
case FTDM_CHANNEL_STATE_PROGRESS_MEDIA:
case FTDM_CHANNEL_STATE_HANGUP:
break;
case FTDM_CHANNEL_STATE_UP:
{
if (ftdm_test_pflag(ftdmchan, PRITAP_NETWORK_ANSWER)) {
ftdm_clear_pflag(ftdmchan, PRITAP_NETWORK_ANSWER);
sig.event_id = FTDM_SIGEVENT_UP;
ftdm_span_send_signal(ftdmchan->span, &sig);
}
}
break;
case FTDM_CHANNEL_STATE_RING:
{
sig.event_id = FTDM_SIGEVENT_START;
/* The ring interface (where the setup was received) is the peer, since we RING the channel
* where PROCEED/PROGRESS is received */
ftdm_sigmsg_add_var(&sig, "pritap_ring_interface", PRITAP_GET_INTERFACE(peer_pritap->iface));
if ((status = ftdm_span_send_signal(ftdmchan->span, &sig) != FTDM_SUCCESS)) {
ftdm_set_state_locked(ftdmchan, FTDM_CHANNEL_STATE_HANGUP);
}
}
break;
case FTDM_CHANNEL_STATE_TERMINATING:
{
if (ftdmchan->last_state != FTDM_CHANNEL_STATE_HANGUP) {
sig.event_id = FTDM_SIGEVENT_STOP;
status = ftdm_span_send_signal(ftdmchan->span, &sig);
}
ftdm_set_state_locked(ftdmchan, FTDM_CHANNEL_STATE_DOWN);
}
break;
default:
{
ftdm_log_chan(ftdmchan, FTDM_LOG_DEBUG, "ignoring state change from %s to %s\n", ftdm_channel_state2str(ftdmchan->last_state), ftdm_channel_state2str(ftdmchan->state));
}
break;
}
return FTDM_SUCCESS;
}
