void channel_read_adsi_channel(uc_t *uc, int chan, void *user_data, uint8_t *buf, int len)
{
int i;
int xlen;
int16_t pcm_buf[1024];
char *s;
int outframes;
for (i = 0; i < len; i++)
pcm_buf[i] = alaw_to_linear(buf[i]);
/*endfor*/
outframes = afWriteFrames(rxhandle,
AF_DEFAULT_TRACK,
pcm_buf,
len);
if (outframes != len)
{
printf("Failed to write %d samples\n", len);
exit(2);
}
dtmf_rx(&chan_stuff[chan].dtmf_state, pcm_buf, len);
xlen = dtmf_rx_get(&chan_stuff[chan].dtmf_state,
chan_stuff[chan].dtmf + chan_stuff[chan].dtmf_ptr,
100 - chan_stuff[chan].dtmf_ptr);
if (xlen > 0)
{
s = chan_stuff[chan].dtmf + chan_stuff[chan].dtmf_ptr;
while (*s)
{
if (*s == '#')
{
uc_set_channel_read_callback(uc, 0, NULL, 0);
uc_set_channel_write_callback(uc, 0, NULL, 0);
if (uc_call_control(uc, UC_OP_DROPCALL, chan_stuff[chan].crn, (void *) UC_CAUSE_NORMAL_CLEARING))
printf ("A Drop Call failed\n");
/*endif*/
break;
}
/*endif*/
s++;
}
/*endwhile*/
printf("Got '%s'\n", chan_stuff[chan].dtmf);
chan_stuff[chan].dtmf_ptr += xlen;
}
/*endif*/
adsi_rx(&(chan_stuff[chan].adsi_rx), pcm_buf, len);
}
void channel_read_fax_channel(uc_t *uc, int chan, void *user_data, uint8_t *buf, int len)
{
int i;
int xlen;
char *s;
int outframes;
#if 0
outframes = afWriteFrames(rxhandle,
AF_DEFAULT_TRACK,
buf,
len >> 1);
if (outframes != len)
{
printf("Failed to write %d samples\n", len);
exit(2);
}
#endif
dtmf_rx(&chan_stuff[chan].dtmf_state, (int16_t *) buf, len);
xlen = dtmf_rx_get(&chan_stuff[chan].dtmf_state,
chan_stuff[chan].dtmf + chan_stuff[chan].dtmf_ptr,
100 - chan_stuff[chan].dtmf_ptr);
if (xlen > 0)
{
s = chan_stuff[chan].dtmf + chan_stuff[chan].dtmf_ptr;
while (*s)
{
if (*s == '#')
{
uc_set_channel_read_callback(uc, 0, NULL, 0);
uc_set_channel_write_callback(uc, 0, NULL, 0);
if (uc_call_control(uc, UC_OP_DROPCALL, chan_stuff[chan].crn, (void *) UC_CAUSE_NORMAL_CLEARING))
printf ("A Drop Call failed\n");
/*endif*/
break;
}
/*endif*/
s++;
}
/*endwhile*/
printf("Got '%s'\n", chan_stuff[chan].dtmf);
chan_stuff[chan].dtmf_ptr += xlen;
}
/*endif*/
t30_rx(&(chan_stuff[chan].fax), (int16_t *) buf, len);
}
static void handle_uc_event(uc_t *uc, void *user_data, uc_event_t *e)
{
int chan;
chan = (int) user_data;
printf ("-- %s (%d)\n", uc_event2str(e->e), chan);
switch (e->e)
{
case UC_EVENT_DEVICEFAIL:
break;
case UC_EVENT_PROTOCOLFAIL:
printf("-- Protocol failure on channel %d, cause %d\n", e->gen.channel, e->gen.data);
break;
case UC_EVENT_SIGCHANSTATUS:
printf("-- Signalling channel status - %s\n", e->sigchanstatus.ok ? "Up" : "Down");
break;
case UC_EVENT_ALARM:
printf("-- Alarm - 0x%X 0x%X\n", e->alarm.raised, e->alarm.cleared);
break;
case UC_EVENT_FARBLOCKED:
printf("-- Channel far end blocked! :-(\n");
chan_stuff[chan].xxx &= ~1;
break;
case UC_EVENT_FARUNBLOCKED:
printf("-- Channel far end unblocked! :-)\n");
chan_stuff[chan].xxx |= 1;
if (chan_stuff[chan].xxx == 3)
{
if (caller_mode)
initiate_call(uc, chan, e);
/*endif*/
}
/*endif*/
break;
case UC_EVENT_LOCALBLOCKED:
printf("-- Channel local end blocked! :-(\n");
chan_stuff[chan].xxx &= ~2;
break;
case UC_EVENT_LOCALUNBLOCKED:
printf("-- Channel local end unblocked! :-)\n");
chan_stuff[chan].xxx |= 2;
if (chan_stuff[chan].xxx == 3)
{
if (caller_mode)
initiate_call(uc, chan, e);
/*endif*/
}
/*endif*/
break;
case UC_EVENT_DIALING:
printf("-- Dialing on channel %d\n", e->gen.channel);
break;
case UC_EVENT_ACCEPTED:
printf("-- Accepted on channel %d\n", e->gen.channel);
if (uc_call_control(uc, UC_OP_ANSWERCALL, e->gen.crn, (void *) -1))
fprintf(stderr, "Answer Call failed\n");
/*endif*/
break;
case UC_EVENT_DETECTED:
printf("-- Detected on channel %d\n", e->gen.channel);
break;
case UC_EVENT_ALERTING:
printf("-- Alerting on channel %d\n", e->gen.channel);
/* This is just a notification of call progress. We need take no action at this point. */
break;
case UC_EVENT_FARDISCONNECTED:
printf("-- Far end disconnected on channel %d\n", e->fardisconnected.channel);
/* Kill any outstanding audio processing */
uc_set_channel_read_callback(uc, 0, NULL, 0);
uc_set_channel_write_callback(uc, 0, NULL, 0);
if (uc_call_control(uc, UC_OP_DROPCALL, e->fardisconnected.crn, (void *) UC_CAUSE_NORMAL_CLEARING))
fprintf(stderr, "C Drop Call failed\n");
/*endif*/
break;
case UC_EVENT_DROPCALL:
printf("-- Drop call on channel %d\n", e->gen.channel);
if (uc_call_control(uc, UC_OP_RELEASECALL, e->gen.crn, NULL))
fprintf(stderr, "uc_ReleaseCall failed\n");
/*endif*/
break;
case UC_EVENT_RELEASECALL:
printf("-- Released on channel %d\n", e->gen.channel);
if (caller_mode)
initiate_call(uc, chan, e);
/*endif*/
break;
case UC_EVENT_OFFERED:
printf("-- Offered on channel %d, CRN %d (ANI: %s, DNIS: %s)\n", e->offered.channel, e->offered.crn, e->offered.parms.originating_number, e->offered.parms.destination_number);
if (!caller_mode)
{
switch (chan_stuff[chan].cause)
{
case 0:
if (uc_call_control(uc, UC_OP_ACCEPTCALL, e->offered.crn, (void *) -1))
fprintf(stderr, "uc_AcceptCall failed\n");
/*endif*/
break;
case 1:
if (uc_call_control(uc, UC_OP_ANSWERCALL, e->offered.crn, (void *) -1))
fprintf(stderr, "uc_AnswerCall failed\n");
/*endif*/
break;
case 2:
if (uc_call_control(uc, UC_OP_DROPCALL, e->offered.crn, (void *) UC_CAUSE_USER_BUSY))
fprintf(stderr, "E Drop Call failed\n");
/*endif*/
break;
case 3:
if (uc_call_control(uc, UC_OP_DROPCALL, e->offered.crn, (void *) UC_CAUSE_UNASSIGNED_NUMBER))
fprintf(stderr, "F Drop Call failed\n");
/*endif*/
break;
case 4:
if (uc_call_control(uc, UC_OP_DROPCALL, e->offered.crn, (void *) UC_CAUSE_NETWORK_CONGESTION))
fprintf(stderr, "G Drop Call failed\n");
/*endif*/
break;
case 5:
if (uc_call_control(uc, UC_OP_DROPCALL, e->offered.crn, (void *) UC_CAUSE_DEST_OUT_OF_ORDER))
fprintf(stderr, "H Drop Call failed\n");
/*endif*/
break;
}
/*endswitch*/
if (++chan_stuff[chan].cause > 5)
chan_stuff[chan].cause = 0;
/*endif*/
}
/*endif*/
break;
case UC_EVENT_ANSWERED:
printf("-- Answered on channel %d\n", e->gen.channel);
uc_set_channel_read_callback(uc, 0, channel_read_adsi_channel, (void *) chan);
printf("XXX read callback set\n");
uc_set_channel_write_callback(uc, 0, channel_write_adsi_channel, (void *) chan);
printf("XXX write callback set\n");
adsi_tx_init(&(chan_stuff[chan].adsi_tx), ADSI_STANDARD_CLASS);
printf("XXX ADSI inited\n");
dtmf_rx_init(&chan_stuff[chan].dtmf_state, NULL, NULL);
printf("XXX DTMF inited\n");
break;
case UC_EVENT_CONNECTED:
printf("-- Connected on channel %d\n", e->gen.channel);
if (uc_call_control(uc, UC_OP_DROPCALL, e->offered.crn, (void *) UC_CAUSE_NORMAL_CLEARING))
printf ("I Drop Call failed\n");
/*endif*/
break;
default:
fprintf(stderr, "--!! Unknown signaling event %d\n", e->e);
break;
}
/*endswitch*/
}
