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/*
* Compaq_VS.c
* v0.01 APLHA (though it works well for me?)
* Jesse Adam Kozloski <jakozlos@uncg.edu>
*
* This file contains hardware driver functions specific to the
* Compaq VS192 (and VS288, but I don't have ATI output for that)
* voice modem. The docs say it is IS-101 compliant, so this shouldn't
* be extremely difficult.
*
* These voice modems are found in the Compaq Presario 72xx and 92xx
* series, and maybe others as well.
*
* TODO: implement other voice compression modes supported by modem
* add other IS-101 analog source/destination configurations (?)
*
* $Id: Compaq_VS.c,v 1.4 2005/03/13 17:27:45 gert Exp $
*
*/
#include "../include/voice.h"
static int Compaq_VS_answer_phone(void)
{
int result;
reset_watchdog();
if(((result = voice_command(voice_modem->pick_phone_cmnd,
voice_modem->pick_phone_answr)) & VMA_USER) != VMA_USER)
return(VMA_ERROR);
if(result == VMA_USER_2)
return(VMA_CONNECT);
return(VMA_OK);
}
static int Compaq_VS_beep(int frequency, int length)
{
char buffer[VOICE_BUF_LEN];
int true_length = length / voice_modem->beep_timeunit;
int frequency2 = frequency / 2;
reset_watchdog();
if(frequency2 < 300)
frequency2 = frequency;
sprintf(buffer, voice_modem->beep_cmnd, frequency / 2, frequency,
true_length);
if (voice_command(buffer, "") != OK)
return(FAIL);
delay(((length - 1000) > 0) ? (length - 1000) : 0);
if ((voice_command("", voice_modem->beep_answr) & VMA_USER) != VMA_USER)
return(FAIL);
return(OK);
}
static int Compaq_VS_init(void)
{
char buffer[VOICE_BUF_LEN];
reset_watchdog();
voice_modem_state = INITIALIZING;
lprintf(L_MESG, "initializing Compaq VS modem [Compaq_VS v0.01]");
/* set silence detection threshold and duration */
sprintf(buffer, "AT+VSD=%d,%d", cvd.rec_silence_threshold.d.i * 10 / 100 + 123, cvd.rec_silence_len.d.i);
if(voice_command(buffer, "OK") != VMA_USER_1)
lprintf(L_WARN, "setting recording preferences didn't work");
/* set receive gain in percent, normalize to 0 - 255 scale */
if((cvd.receive_gain.d.i < 0) || (cvd.receive_gain.d.i > 100))
cvd.receive_gain.d.i = 75;
sprintf(buffer, "AT+VGR=%d", cvd.receive_gain.d.i * 255 / 100);
if(voice_command(buffer, "OK") != VMA_USER_1)
lprintf(L_WARN, "setting receive gain didn't work");
/* set transmit gain in percent, normalize to 0 - 255 scale */
if((cvd.transmit_gain.d.i < 0) || (cvd.transmit_gain.d.i > 100))
cvd.transmit_gain.d.i = 75;
sprintf(buffer, "AT+VGT=%d", cvd.transmit_gain.d.i * 255 / 100);
if(voice_command(buffer, "OK") != VMA_USER_1)
lprintf(L_WARN, "setting transmit gain didn't work");
if(voice_command("AT+VLS=0", "OK") != VMA_USER_1)
lprintf(L_WARN, "can't deselect all input/output devices");
voice_modem_state = IDLE;
return(OK);
}
/*
* only support compression mode 4 for now, it's easy to support
* valid modes for modem are:
* 1 8bit linear at 7200,8000,11025 Hz
* 2 16bit linear at 7200,8000,11025 Hz
* 3 8bit alaw at 8000 Hz
* 4 8bit ulaw at 8000 Hz
*/
static int Compaq_VS_set_compression (int *compression, int *speed, int *bits)
{
char buffer[VOICE_BUF_LEN];
reset_watchdog();
if(*compression == 0)
*compression = 4;
if(*speed == 0)
*speed = 8000;
if(*speed != 8000)
{
lprintf(L_WARN, "%s: Illegal sample rate (%d)", voice_modem_name,
*speed);
return(FAIL);
}
if(*compression != 4)
{
lprintf(L_WARN, "%s: Illegal voice compression method (%d)",
voice_modem_name, *compression);
return(FAIL);
}
*bits = 8;
sprintf(buffer, "AT+VSM=%d", *compression + 127);
if(voice_command(buffer, "OK") != VMA_USER_1)
return(FAIL);
return(OK);
}
static int Compaq_VS_set_device(int device)
{
reset_watchdog();
switch(device)
{
case NO_DEVICE:
voice_command("AT+VLS=0", "OK");
return(OK);
case DIALUP_LINE:
voice_command("AT+VLS=2", "OK");
return(OK);
case INTERNAL_SPEAKER:
voice_command("AT+VLS=4", "OK");
return(OK);
case INTERNAL_MICROPHONE:
voice_command("AT+VLS=6", "OK");
return(OK);
}
lprintf(L_WARN, "%s: Unknown output device (%d)", voice_modem_name,
device);
return(FAIL);
}
const char Compaq_VS_pick_phone_cmnd[] = "AT+VLS=1";
const char Compaq_VS_pick_phone_answr[] = "OK|CONNECT";
voice_modem_struct Compaq_VS =
{
"Compaq VS Series Modem",
"Compaq VS",
(char *) Compaq_VS_pick_phone_cmnd,
(char *) Compaq_VS_pick_phone_answr,
(char *) IS_101_beep_cmnd,
(char *) IS_101_beep_answr,
IS_101_beep_timeunit,
(char *) IS_101_hardflow_cmnd,
(char *) IS_101_hardflow_answr,
(char *) IS_101_softflow_cmnd,
(char *) IS_101_softflow_answr,
(char *) IS_101_start_play_cmnd,
(char *) IS_101_start_play_answer,
(char *) IS_101_reset_play_cmnd,
(char *) IS_101_intr_play_cmnd,
(char *) IS_101_intr_play_answr,
(char *) IS_101_stop_play_cmnd,
(char *) IS_101_stop_play_answr,
(char *) IS_101_start_rec_cmnd,
(char *) IS_101_start_rec_answr,
(char *) IS_101_stop_rec_cmnd,
(char *) IS_101_stop_rec_answr,
(char *) IS_101_switch_mode_cmnd,
(char *) IS_101_switch_mode_answr,
(char *) IS_101_ask_mode_cmnd,
(char *) IS_101_ask_mode_answr,
(char *) IS_101_voice_mode_id,
// juergen.kosel@gmx.de : voice-duplex-patch start
NULL, /* (char *) V253modem_start_duplex_voice_cmnd, */
NULL, /* (char *) V253modemstart_duplex_voice_answr, */
NULL, /* (char *) V253modem_stop_duplex_voice_cmnd , */
NULL, /* (char *) V253modem_stop_duplex_voice_answr, */
// juergen.kosel@gmx.de : voice-duplex-patch end
&Compaq_VS_answer_phone,
&Compaq_VS_beep,
&IS_101_dial,
&IS_101_handle_dle,
&Compaq_VS_init,
&IS_101_message_light_off,
&IS_101_message_light_on,
&IS_101_start_play_file,
&IS_101_reset_play_file,
&IS_101_stop_play_file,
&IS_101_play_file,
&IS_101_record_file,
&Compaq_VS_set_compression,
&Compaq_VS_set_device,
&IS_101_stop_dialing,
&IS_101_stop_playing,
&IS_101_stop_recording,
&IS_101_stop_waiting,
&IS_101_switch_to_data_fax,
&IS_101_voice_mode_off,
&IS_101_voice_mode_on,
&IS_101_wait,
&IS_101_play_dtmf,
&IS_101_check_rmd_adequation,
// juergen.kosel@gmx.de : voice-duplex-patch start
&IS_101_handle_duplex_voice,
&IS_101_handle_duplex_voice,
NULL, /* since there is no way to enter duplex voice state */
// juergen.kosel@gmx.de : voice-duplex-patch end
0
};
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