BOOLEAN
SoundTestInterruptAndDMA(
IN PGLOBAL_DEVICE_INFO pGDI
)
//
// Check if the interrupt and DMA settings work with the card
// If not we beat a hasty retreat and hope we haven't broken anything!
//
{
int Error;
Error = SoundTestWaveDevice(pGDI->DeviceObject[WaveOutDevice]);
#if DBG
if (Error)
dprintf2(("SoundTestInterruptAndDMA: Error during SoundTestWaveDevice(WaveOut)."));
#endif
if (Error == 0) {
Error = SoundTestWaveDevice(pGDI->DeviceObject[WaveInDevice]);
#if DBG
if (Error)
dprintf2(("SoundTestInterruptAndDMA: Error during SoundTestWaveDevice(WaveIn)."));
#endif
}
//
// Make sure everything gets finished
//
HwSetWaveFormat(&pGDI->WaveInfo);
if (Error != 0) {
SoundSetErrorCode(pGDI->RegistryPathName,
Error == 1 ? SOUND_CONFIG_BADINT
: SOUND_CONFIG_BADDMA);
return FALSE;
} else {
return TRUE;
}
}
/*ARGSUSED*/
static int
allegro_audio_prepare_for_input (int dev, int bsize, int bcount)
{
allegro_devc *devc = audio_engines[dev]->devc;
allegro_portc *portc = audio_engines[dev]->portc;
oss_native_word flags;
WAVE_INFO WaveInfo;
MUTEX_ENTER_IRQDISABLE (devc->mutex, flags);
WaveInfo.BitsPerSample = portc->bits;
WaveInfo.Channels = portc->channels;
WaveInfo.SamplesPerSec = portc->speed;
HwSetWaveFormat (devc, &WaveInfo, FALSE);
MUTEX_EXIT_IRQRESTORE (devc->mutex, flags);
portc->audio_enabled &= ~PCM_ENABLE_INPUT;
portc->trigger_bits &= ~PCM_ENABLE_INPUT;
return 0;
}
/*ARGSUSED*/
static int
allegro_audio_prepare_for_output (int dev, int bsize, int bcount)
{
allegro_devc *devc = audio_engines[dev]->devc;
allegro_portc *portc = audio_engines[dev]->portc;
oss_native_word flags;
WAVE_INFO WaveInfo;
MUTEX_ENTER_IRQDISABLE (devc->mutex, flags);
WaveInfo.BitsPerSample = portc->bits;
WaveInfo.Channels = portc->channels;
WaveInfo.SamplesPerSec = portc->speed;
SRCMGR_SetVolume (devc, PlaybackStream->DspClientInstance, 0x7FFF, 0x7FFF);
HwSetWaveFormat (devc, &WaveInfo, TRUE);
MUTEX_EXIT_IRQRESTORE (devc->mutex, flags);
portc->audio_enabled &= ~PCM_ENABLE_OUTPUT;
portc->trigger_bits &= ~PCM_ENABLE_OUTPUT;
return 0;
}