int main(void) {
u32 stretch;
u32 samp_i;
/* Initialisation de plb_ac97 : */
XAC97_HardReset(PLB_AC97_BASEADDR);
XAC97_InitAudio(PLB_AC97_BASEADDR, 0);
XAC97_ClearFifos(PLB_AC97_BASEADDR);
/* Ajustement du volume audio : */
XAC97_WriteReg(PLB_AC97_BASEADDR, AC97_MasterVol, AC97_VOL_MAX);
XAC97_WriteReg(PLB_AC97_BASEADDR, AC97_AuxOutVol, AC97_VOL_ATTN_6_0_DB);
XAC97_WriteReg(PLB_AC97_BASEADDR, AC97_PCMOutVol, AC97_VOL_ATTN_6_0_DB);
/* Boucler : */
for (;;) {
for (samp_i = 0; samp_i < NUM_SAMPLES; ++samp_i) {
for (stretch = 0; stretch < STRETCH; ++stretch) {
XAC97_WriteFifo(PLB_AC97_BASEADDR, g_samples[samp_i]);
}
}
}
return 0;
}
void Foliage::SoundManager::init()
{
// hard reset & initialization
XAC97_HardReset(XPAR_AUDIO_CODEC_BASEADDR);
XAC97_InitAudio(XPAR_AUDIO_CODEC_BASEADDR, AC97_ANALOG_LOOPBACK);
XAC97_DisableInput(XPAR_AUDIO_CODEC_BASEADDR, AC97_MIC_INPUT);
XAC97_DisableInput(XPAR_AUDIO_CODEC_BASEADDR, AC97_LINE_INPUT);
XAC97_AwaitCodecReady(XPAR_AUDIO_CODEC_BASEADDR);
// volume settings
XAC97_WriteReg(XPAR_AUDIO_CODEC_BASEADDR, AC97_MasterVol, AC97_VOL_MAX);
XAC97_WriteReg(XPAR_AUDIO_CODEC_BASEADDR, AC97_AuxOutVol, AC97_VOL_MUTE);
XAC97_WriteReg(XPAR_AUDIO_CODEC_BASEADDR, AC97_MasterVolMono, AC97_VOL_MUTE);
XAC97_WriteReg(XPAR_AUDIO_CODEC_BASEADDR, AC97_PCBeepVol, AC97_VOL_MUTE);
XAC97_WriteReg(XPAR_AUDIO_CODEC_BASEADDR, AC97_PhoneInVol, AC97_VOL_MUTE);
XAC97_WriteReg(XPAR_AUDIO_CODEC_BASEADDR, AC97_MicVol, AC97_VOL_MUTE);
XAC97_WriteReg(XPAR_AUDIO_CODEC_BASEADDR, AC97_LineInVol, AC97_VOL_MUTE);
XAC97_WriteReg(XPAR_AUDIO_CODEC_BASEADDR, AC97_CDVol, AC97_VOL_MUTE);
XAC97_WriteReg(XPAR_AUDIO_CODEC_BASEADDR, AC97_VideoVol, AC97_VOL_MUTE);
XAC97_WriteReg(XPAR_AUDIO_CODEC_BASEADDR, AC97_AuxInVol, AC97_VOL_MUTE);
XAC97_WriteReg(XPAR_AUDIO_CODEC_BASEADDR, AC97_PCMOutVol, AC97_VOL_MAX);
XAC97_AwaitCodecReady(XPAR_AUDIO_CODEC_BASEADDR);
// VRA mode OFF
XAC97_WriteReg(XPAR_AUDIO_CODEC_BASEADDR, AC97_ExtendedAudioStat, 0);
// clear FIFOs
XAC97_ClearFifos(XPAR_AUDIO_CODEC_BASEADDR);
// interrupt
XIntc_RegisterHandler(XPAR_OPB_INTC_0_BASEADDR,
XPAR_OPB_INTC_0_AUDIO_CODEC_INTERRUPT_INTR,
(XInterruptHandler)Foliage::SoundManager::AC97_Callback,
NULL);
XAC97_mSetControl(XPAR_AUDIO_CODEC_BASEADDR, AC97_ENABLE_IN_FIFO_INTERRUPT);
std::cout << " * sound manager initialized" << std::endl;
}
