static int
msp3400c_write(bktr_ptr_t client, int dev, int addr, int val)
{
/* use our own */
msp_dpl_write(client, client->msp_addr, dev, addr, val);
return(0);
}
/* Configure the DPL chip to Auto-detect the audio format */
void dpl_autodetect( bktr_ptr_t bktr ) {
/* The following are empiric values tried from the DPL35xx data sheet */
msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x000c,0x0320); /* quasi peak detector source dolby
lr 0x03xx; quasi peak detector matrix
stereo 0xXX20 */
msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0040,0x0060); /* Surround decoder mode;
ADAPTIVE/3D-PANORAMA, that means two
speakers and no center speaker, all
channels L/R/C/S mixed to L and R */
msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0041,0x0620); /* surround source matrix;I2S2/STEREO*/
msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0042,0x1F00); /* surround delay 31ms max */
msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0043,0x0000); /* automatic surround input balance */
msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0044,0x4000); /* surround spatial effect 50%
recommended*/
msp_dpl_write(bktr, bktr->dpl_addr, 0x12, 0x0045,0x5400); /* surround panorama effect 66%
recommended with PANORAMA mode
in 0x0040 set to panorama */
}
/* Configure the MSP chip to Auto-detect the audio format.
* For the MSP3430G, we use fast autodetect mode
* For the MSP3410/3415 there are two schemes for this
* a) Fast autodetection - the chip is put into autodetect mode, and the function
* returns immediatly. This works in most cases and is the Default Mode.
* b) Slow mode. The function sets the MSP3410/3415 chip, then waits for feedback from
* the chip and re-programs it if needed.
*/
void msp_autodetect( bktr_ptr_t bktr ) {
#ifdef BKTR_NEW_MSP34XX_DRIVER
/* Just wake up the (maybe) sleeping thread, it'll do everything for us */
msp_wake_thread(bktr);
#else
int auto_detect, loops;
int stereo;
/* MSP3430G - countries with mono and DBX stereo */
if (strncmp("3430G", bktr->msp_version_string, 5) == 0){
msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0030,0x2003);/* Enable Auto format detection */
msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0020,0x0020);/* Standard Select Reg. = BTSC-Stereo*/
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000E,0x2403);/* darned if I know */
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0320);/* Source select = (St or A) */
/* & Ch. Matrix = St */
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000,0x7300);/* Set volume to 0db gain */
}
/* MSP3415D SPECIAL CASE Use the Tuner's Mono audio ouput for the MSP */
/* (for Hauppauge 44xxx card with Tuner Type 0x2a) */
else if ( ( (strncmp("3415D", bktr->msp_version_string, 5) == 0)
&&(bktr->msp_use_mono_source == 1)
)
|| (bktr->slow_msp_audio == 2) ){
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000d, 0x1900); /* scart prescale */
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008, 0x0220); /* SCART | STEREO */
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0013, 0x0100); /* DSP In = MONO IN */
}
/* MSP3410/MSP3415 - countries with mono, stereo using 2 FM channels and NICAM */
/* FAST sound scheme */
else if (bktr->slow_msp_audio == 0) {
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000,0x7300);/* Set volume to 0db gain */
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0000);/* Spkr Source = default(FM/AM) */
msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0020,0x0001);/* Enable Auto format detection */
msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0021,0x0001);/* Auto selection of NICAM/MONO mode */
}
/* MSP3410/MSP3415 - European Countries where the fast MSP3410/3415 programming fails */
/* SLOW sound scheme */
else if ( bktr->slow_msp_audio == 1) {
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000,0x7300);/* Set volume to 0db gain */
msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0020,0x0001);/* Enable Auto format detection */
/* wait for 0.5s max for terrestrial sound autodetection */
loops = 10;
do {
DELAY(100000);
auto_detect = msp_dpl_read(bktr, bktr->msp_addr, 0x10, 0x007e);
loops++;
} while (auto_detect > 0xff && loops < 50);
if (bootverbose)printf ("%s: Result of autodetect after %dms: %d\n",
bktr_name(bktr), loops*10, auto_detect);
/* Now set the audio baseband processing */
switch (auto_detect) {
case 0: /* no TV sound standard detected */
break;
case 2: /* M Dual FM */
break;
case 3: /* B/G Dual FM; German stereo */
/* Read the stereo detection value from DSP reg 0x0018 */
DELAY(20000);
stereo = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x0018);
if (bootverbose)printf ("%s: Stereo reg 0x18 a: %d\n",
bktr_name(bktr), stereo);
DELAY(20000);
stereo = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x0018);
if (bootverbose)printf ("%s: Stereo reg 0x18 b: %d\n",
bktr_name(bktr), stereo);
DELAY(20000);
stereo = msp_dpl_read(bktr, bktr->msp_addr, 0x12, 0x0018);
if (bootverbose)printf ("%s: Stereo reg 0x18 c: %d\n",
bktr_name(bktr), stereo);
if (stereo > 0x0100 && stereo < 0x8000) { /* Seems to be stereo */
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0020);/* Loudspeaker set stereo*/
/*
set spatial effect strength to 50% enlargement
set spatial effect mode b, stereo basewidth enlargment only
*/
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0005,0x3f28);
} else if (stereo > 0x8000) { /* bilingual mode */
if (bootverbose) printf ("%s: Bilingual mode detected\n",
bktr_name(bktr));
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0000);/* Loudspeaker */
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0005,0x0000);/* all spatial effects off */
} else { /* must be mono */
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0030);/* Loudspeaker */
/*
set spatial effect strength to 50% enlargement
set spatial effect mode a, stereo basewidth enlargment
and pseudo stereo effect with automatic high-pass filter
*/
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0005,0x3f08);
}
#if 0
/* The reset value for Channel matrix mode is FM/AM and SOUNDA/LEFT */
/* We would like STEREO instead val: 0x0020 */
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008,0x0020);/* Loudspeaker */
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0009,0x0020);/* Headphone */
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000a,0x0020);/* SCART1 */
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0041,0x0020);/* SCART2 */
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000b,0x0020);/* I2S */
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000c,0x0020);/* Quasi-Peak Detector Source */
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000e,0x0001);
#endif
break;
case 8: /* B/G FM NICAM */
msp_dpl_write(bktr, bktr->msp_addr, 0x10, 0x0021,0x0001);/* Auto selection of NICAM/MONO mode */
break;
case 9: /* L_AM NICAM or D/K*/
case 10: /* i-FM NICAM */
break;
default:
if (bootverbose) printf ("%s: Unknown autodetection result value: %d\n",
bktr_name(bktr), auto_detect);
}
}
/* uncomment the following line to enable the MSP34xx 1Khz Tone Generator */
/* turn your speaker volume down low before trying this */
/* msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0014, 0x7f40); */
#endif /* BKTR_NEW_MSP34XX_DRIVER */
}
int
set_audio( bktr_ptr_t bktr, int cmd )
{
u_long temp;
volatile u_char idx;
#if defined( AUDIOMUX_DISCOVER )
if ( cmd >= 200 )
cmd -= 200;
else
#endif /* AUDIOMUX_DISCOVER */
/* check for existance of audio MUXes */
if ( !bktr->card.audiomuxs[ 4 ] )
return( -1 );
switch (cmd) {
case AUDIO_TUNER:
#ifdef BKTR_REVERSEMUTE
bktr->audio_mux_select = 3;
#else
bktr->audio_mux_select = 0;
#endif
if (bktr->reverse_mute )
bktr->audio_mux_select = 0;
else
bktr->audio_mux_select = 3;
break;
case AUDIO_EXTERN:
bktr->audio_mux_select = 1;
break;
case AUDIO_INTERN:
bktr->audio_mux_select = 2;
break;
case AUDIO_MUTE:
bktr->audio_mute_state = TRUE; /* set mute */
break;
case AUDIO_UNMUTE:
bktr->audio_mute_state = FALSE; /* clear mute */
break;
default:
printf("%s: audio cmd error %02x\n", bktr_name(bktr),
cmd);
return( -1 );
}
/* Most cards have a simple audio multiplexer to select the
* audio source. The I/O_GV card has a more advanced multiplexer
* and requires special handling.
*/
if ( bktr->bt848_card == CARD_IO_BCTV2 ) {
set_bctv2_audio( bktr );
return( 0 );
}
/* Proceed with the simpler audio multiplexer code for the majority
* of Bt848 cards.
*/
/*
* Leave the upper bits of the GPIO port alone in case they control
* something like the dbx or teletext chips. This doesn't guarantee
* success, but follows the rule of least astonishment.
*/
if ( bktr->audio_mute_state == TRUE ) {
#ifdef BKTR_REVERSEMUTE
idx = 0;
#else
idx = 3;
#endif
if (bktr->reverse_mute )
idx = 3;
else
idx = 0;
}
else
idx = bktr->audio_mux_select;
temp = INL(bktr, BKTR_GPIO_DATA) & ~bktr->card.gpio_mux_bits;
#if defined( AUDIOMUX_DISCOVER )
OUTL(bktr, BKTR_GPIO_DATA, temp | (cmd & 0xff));
printf("%s: cmd: %d audio mux %x temp %x \n", bktr_name(bktr),
cmd, bktr->card.audiomuxs[ idx ], temp );
#else
OUTL(bktr, BKTR_GPIO_DATA, temp | bktr->card.audiomuxs[ idx ]);
#endif /* AUDIOMUX_DISCOVER */
/* Some new Hauppauge cards do not have an audio mux */
/* Instead we use the MSP34xx chip to select TV audio, Line-In */
/* FM Radio and Mute */
/* Examples of this are the Hauppauge 44xxx MSP34xx models */
/* It is ok to drive both the mux and the MSP34xx chip. */
/* If there is no mux, the MSP does the switching of the audio source */
/* If there is a mux, it does the switching of the audio source */
if ((bktr->card.msp3400c) && (bktr->audio_mux_present == 0)) {
if (bktr->audio_mute_state == TRUE ) {
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x0000); /* volume to MUTE */
} else {
if(bktr->audio_mux_select == 0) { /* TV Tuner */
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */
if (bktr->msp_source_selected != 0) msp_autodetect(bktr); /* setup TV audio mode */
bktr->msp_source_selected = 0;
}
if(bktr->audio_mux_select == 1) { /* Line In */
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000d, 0x1900); /* scart prescale */
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008, 0x0220); /* SCART | STEREO */
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0013, 0x0000); /* DSP In = SC1_IN_L/R */
bktr->msp_source_selected = 1;
}
if(bktr->audio_mux_select == 2) { /* FM Radio */
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0000, 0x7300); /* 0 db volume */
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x000d, 0x1900); /* scart prescale */
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0008, 0x0220); /* SCART | STEREO */
msp_dpl_write(bktr, bktr->msp_addr, 0x12, 0x0013, 0x0200); /* DSP In = SC2_IN_L/R */
bktr->msp_source_selected = 2;
}
}
}
return( 0 );
}
