static int Multitech_2834_voice_mode_on(void)
{
char buffer[VOICE_BUF_LEN];
if (voice_command(voice_modem->ask_mode_cmnd, "") != OK)
return FAIL;
do {
if (voice_read(mode_save) != OK)
return FAIL;
} while (strlen(mode_save) == 0);
if (strncmp(mode_save, "+FCLASS=", 8) == 0)
memmove(mode_save, mode_save + 8, strlen(mode_save) - 8 + 1);
if ((voice_command("", voice_modem->ask_mode_answr) & VMA_USER) != VMA_USER)
return FAIL;
sprintf(buffer, "%s%s", voice_modem->switch_mode_cmnd,
voice_modem->voice_mode_id);
if ((voice_command(buffer, voice_modem->switch_mode_answr) & VMA_USER) !=
VMA_USER)
return FAIL;
Multitech_2834_fix_modem(0);
return OK;
}
void Multitech_2834_fix_modem(int expect_error)
{
char buffer[VOICE_BUF_LEN];
int result = VMA_FAIL;
if (!cvd.enable_command_echo.d.i) {
/* Multitech 2834 ZDXV modem (ROM 0416A NORTH AMERICAN)
* -- [email protected]
* As I understand the problem -- some Multitech 2834 ZDXv
* modems garble the command echo at certain points. To counter
* this, a dummy command is sent at those points (just AT)
* and the echo is ignored: this is the purpose of
* Multitech_2834_fix_modem(). If echo is off, there is
* no need to prevent garbled commands echos, and thus no need
* for Multitech_2834_fix_modem() (in fact, it would fail).
*/
return;
}
/* my ZDXv with 0416A firmware seems to exhibit a bug here -
* if you send the modem 'AT', it echos 'TA'. If you send it
* 'ATI', it echos 'TIA'!
*/
voice_write("AT");
do {
if (voice_read(buffer) != OK) {
voice_flush(1);
break;
}
result = voice_analyze(buffer, "AT", TRUE);
if (result == VMA_FAIL) {
voice_flush(1);
break;
}
if (result == VMA_ERROR) {
lprintf(L_WARN, "%s: Modem returned ERROR",
program_name);
voice_flush(1);
break;
}
} while (result != VMA_USER_1);
if (result == VMA_USER_1 && expect_error)
lprintf(L_WARN, "%s: Modem answered correctly - mail [email protected]",
program_name);
if (result != VMA_USER_1 && !expect_error)
lprintf(L_WARN, "%s: Modem answered incorrectly - mail [email protected]",
program_name);
}
int Cirrus_Logic_init (void)
{
char buffer[VOICE_BUF_LEN];
range play_range = {0, 0};
range rec_range = {0, 0};
range rec_silence_threshold = {0, 0};
reset_watchdog();
lprintf(L_MESG, "Initializing Cirrus Logic voice modem");
voice_modem_state = INITIALIZING;
/* Get the record volume range available from modem */
voice_command("AT#VRL=?", "");
voice_read(cirrus_logic_ans);
voice_flush(1);
get_range(cirrus_logic_ans, &rec_range);
if (cvd.receive_gain.d.i == -1)
cvd.receive_gain.d.i = (rec_range.max + rec_range.min) / 2;
sprintf(buffer, "AT#VRL=%.0f", rec_range.min + ((rec_range.max -
rec_range.min) * cvd.receive_gain.d.i / 100.0));
if (voice_command(buffer, "OK") != VMA_USER_1)
lprintf(L_WARN, "can't set recording volume");
/* Get the play volume range available from modem */
voice_command("AT#VPL=?", "");
voice_read(cirrus_logic_ans);
voice_flush(1);
get_range(cirrus_logic_ans, &play_range);
if (cvd.transmit_gain.d.i == -1)
cvd.transmit_gain.d.i = (play_range.max + play_range.min) / 2;
sprintf(buffer, "AT#VPL=%.0f", play_range.min + ((play_range.max -
play_range.min) * cvd.transmit_gain.d.i / 100.0));
if (voice_command(buffer, "OK") != VMA_USER_1)
lprintf(L_WARN, "can't set play volume");
if ((cvd.rec_silence_threshold.d.i > 100) ||
(cvd.rec_silence_threshold.d.i < 0))
{
lprintf(L_WARN, "Invalid threshold value.");
return(ERROR);
}
/* Get the silence threshold range from modem */
voice_command("AT#VSL=?", "");
voice_read(cirrus_logic_ans);
voice_flush(1);
get_range(cirrus_logic_ans, &rec_silence_threshold);
sprintf(buffer, "AT#VSL=%.0f", rec_silence_threshold.min +
((rec_silence_threshold.max - rec_silence_threshold.min) *
cvd.rec_silence_threshold.d.i / 100.0));
if (voice_command(buffer, "OK") != VMA_USER_1)
lprintf(L_WARN, "can't set silence threshold");
sprintf(buffer, "AT#VSQT=%1u", (int)cvd.rec_silence_len.d.i);
if (voice_command(buffer, "OK") != VMA_USER_1)
lprintf(L_WARN, "can't set silence period record mode");
sprintf(buffer, "AT#VSST=%1u", (int)cvd.rec_silence_len.d.i);
if (voice_command(buffer, "OK") != VMA_USER_1)
lprintf(L_WARN, "can't set silence period record and command mode");
if (voice_command("AT\\Q3", "OK") == VMA_USER_1)
{
TIO tio;
tio_get(voice_fd, &tio);
tio_set_flow_control(voice_fd, &tio, FLOW_HARD);
tio_set(voice_fd, &tio);
}
else
lprintf(L_WARN, "can't turn on hardware flow control");
voice_modem_state = IDLE;
return(OK);
}
static int ISDN4Linux_init(void)
{
static char buffer[VOICE_BUF_LEN] = "";
unsigned reg_content;
voice_modem_state = INITIALIZING;
lprintf(L_MESG, "initializing ISDN4Linux voice mode");
reset_watchdog();
/* Enable voice calls (set bit 1 in register S18) */
if (voice_command("ATS18?", "") != OK)
return(FAIL);
if (voice_read(buffer) != OK)
return(FAIL);
if (voice_command("", "OK") != VMA_USER_1)
return(FAIL);
reg_content=atoi(buffer);
sprintf(buffer, "ATS18=%u", reg_content | 1);
if (voice_command(buffer, "OK") != VMA_USER_1)
return(FAIL);
/* Enable CALLER NUMBER after first RING (set bit 4 in register S13) */
if (voice_command("ATS13?", "") != OK)
return(FAIL);
if (voice_read(buffer) != OK)
return(FAIL);
if (voice_command("", "OK") != VMA_USER_1)
return(FAIL);
reg_content=atoi(buffer);
sprintf(buffer, "ATS13=%u", reg_content | (1 << 4));
if (voice_command(buffer, "OK") != VMA_USER_1)
return(FAIL);
#if ISDN_FUTURE
{
char buffer[VOICE_BUF_LEN];
/*
* ATS40.3=1 - Enable distincitve ring type 1 (RING)
* ATS40.4=1 - Enable distincitve ring type 2 (RING 1)
* ATS40.5=1 - Enable distincitve ring type 3 (RING 2)
* ATS40.6=1 - Enable distincitve ring type 4 (RING 3)
*/
/*
* AT+VSD=x,y - Set silence threshold and duration.
*/
sprintf(buffer, "AT+VSD=%d,%d", cvd.rec_silence_threshold.d.i * 31 / 100,
cvd.rec_silence_len.d.i);
if (voice_command(buffer, "OK") != VMA_USER_1)
lprintf(L_WARN, "setting recording preferences didn't work");
}
#endif /* ISDN_FUTURE */
voice_modem_state = IDLE;
return(OK);
}
void V253_querry_compressions() {
char buffer[VOICE_BUF_LEN];
memset( buffer, '\0', sizeof(buffer) );
if (!cvd.enable_compression_mapping_querry.d.i) {
lprintf(L_NOISE, "voice compression querry disabled");
return;
}
if (voice_command("AT+VSM=?", "") != OK)
{
lprintf(L_WARN, "voice compression querry failed");
return;
}
do {
if (voice_read(buffer) != OK)
{
lprintf(L_WARN, "voice compression querry failed");
break;
}
#ifndef NO_STRSTR
// now check, if the line contains a supported compression method
if(mSTRSTR(buffer,"\"SIGNED PCM\",8")) {
// The leading number in buffer contains the modem compression id
Kompressiontable[9]= strtol(buffer, NULL, 10);
lprintf(L_NOISE, "Mapped signed PCM, 9 -> %d",Kompressiontable[9]);
} else if(mSTRSTR(buffer,"\"SIGNED PCM\",16")) {
// The leading number in buffer contains the modem compression id
Kompressiontable[12]= strtol(buffer, NULL, 10);
lprintf(L_NOISE, "Mapped signed PCM, 12 -> %d",Kompressiontable[12]);
} else if(mSTRSTR(buffer,"UNSIGNED PCM\",8")) {
// The leading number in buffer contains the modem compression id
Kompressiontable[0]=
Kompressiontable[1]=
Kompressiontable[8]= strtol(buffer, NULL, 10);
lprintf(L_NOISE, "Mapped default (8 bit linear), 0 -> %d",Kompressiontable[0]);
lprintf(L_NOISE, "Mapped unsigned PCM, 1 -> %d",Kompressiontable[1]);
lprintf(L_NOISE, "Mapped 8 bit linear, 8 -> %d",Kompressiontable[8]);
} else if(mSTRSTR(buffer,"8-BIT LINEAR")) {
// The leading number in buffer contains the modem compression id
Kompressiontable[0]=
Kompressiontable[1]=
Kompressiontable[8]= strtol(buffer, NULL, 10);
lprintf(L_NOISE, "Mapped default (8 bit linear), 0 -> %d",Kompressiontable[0]);
lprintf(L_NOISE, "Mapped unsigned PCM, 1 -> %d",Kompressiontable[1]);
lprintf(L_NOISE, "Mapped 8 bit linear, 8 -> %d",Kompressiontable[8]);
} else if(mSTRSTR(buffer,"IMA ADPCM\",4")) {
// The leading number in buffer contains the modem compression id
Kompressiontable[5]= strtol(buffer, NULL, 10);
lprintf(L_NOISE, "Mapped 4 bit IMA ADPCM, 5 -> %d",Kompressiontable[5]);
} else if(mSTRSTR(buffer,"4-BIT ADPCM")) {
// The leading number in buffer contains the modem compression id
Kompressiontable[5]= strtol(buffer, NULL, 10);
lprintf(L_NOISE, "Mapped 4 bit IMA ADPCM, 5 -> %d",Kompressiontable[5]);
} else if(mSTRSTR(buffer,"ULAW")) {
// The leading number in buffer contains the modem compression id
Kompressiontable[10]= strtol(buffer, NULL, 10);
lprintf(L_NOISE, "Mapped ulaw, 10 -> %d",Kompressiontable[10]);
} else if(mSTRSTR(buffer,"ALAW")) {
// The leading number in buffer contains the modem compression id
Kompressiontable[11]= strtol(buffer, NULL, 10);
lprintf(L_NOISE, "Mapped alaw, 11 -> %d",Kompressiontable[11]);
} else if(mSTRSTR(buffer,"16-BIT LINEAR")) {
// The leading number in buffer contains the modem compression id
Kompressiontable[13]= strtol(buffer, NULL, 10);
lprintf(L_NOISE, "Mapped 16 bit linear, 13 -> %d",Kompressiontable[13]);
} else
#endif
{
lprintf(L_NOISE, "Unknown: %s",buffer);
}
} while (strncmp("OK",buffer,2)); //search for the terminating "OK"
}