void vs_init(void)
{
DEBUGOUT("VS: init\n");
vs_playing = 0;
//reset vs buffer
vs_bufreset();
//reset vs
vs_reset();
//set volume, bass, treble
vs_setvolume(DEFAULT_VOLUME);
vs_setbassfreq(DEFAULT_BASSFREQ);
vs_setbassamp(DEFAULT_BASSAMP);
vs_settreblefreq(DEFAULT_TREBLEFREQ);
vs_settrebleamp(DEFAULT_TREBLEAMP);
//init pin interrupt
GPIOIntTypeSet(GPIO_PORTA_BASE, GPIO_PIN_1, GPIO_HIGH_LEVEL);
GPIOPortIntRegister(GPIO_PORTA_BASE, vs_requesthandler);
return;
}
void vs_init(int unit)
{
vs_status[unit].vs_playing = 0;
//reset vs buffer
vs_bufreset(unit);
//reset vs
vs_reset();
//set volume, bass, treble
vs_setvolume(unit, DEFAULT_VOLUME);
vs_setbassfreq(unit, DEFAULT_BASSFREQ);
vs_setbassamp(unit, DEFAULT_BASSAMP);
vs_settreblefreq(unit, DEFAULT_TREBLEFREQ);
vs_settrebleamp(unit, DEFAULT_TREBLEAMP);
//init pin interrupt
//TODO: needs change - init interrupts by unit
//GPIOIntTypeSet(GPIO_PORTA_BASE, GPIO_PIN_1, GPIO_HIGH_LEVEL);
//GPIOPortIntRegister(GPIO_PORTA_BASE, vs_requesthandler);
return;
}
void vs_stopstream(void)
{
unsigned int i, timeout;
vs_pause();
vs_ssi_wait(); //wait for transfer complete
VS_DCS_DISABLE();
VS_CS_DISABLE();
//cancel playback
vs_write_reg(VS_MODE, SM_SDINEW | SM_CANCEL);
for(timeout=100; (timeout!=0) && (vs_read_reg(VS_MODE) & SM_CANCEL); timeout--)
{
VS_DCS_ENABLE();
for(i=32; i!=0; i--)
{
vs_ssi_write(vs_bufgetc());
}
vs_ssi_wait();
VS_DCS_DISABLE();
}
//flush buffer
if(vs_read_reg(VS_HDAT0) || vs_read_reg(VS_HDAT1))
{
for(timeout=12288/32; timeout!=0; timeout--) //for FLAC 12288 otherwise 2052
{
VS_DCS_ENABLE();
for(i=32; i!=0; i--)
{
vs_ssi_write(0x00);
}
vs_ssi_wait();
VS_DCS_DISABLE();
}
}
//reset
if(vs_read_reg(VS_HDAT0) || vs_read_reg(VS_HDAT1))
{
vs_write_reg(VS_MODE, SM_SDINEW | SM_RESET); //soft-reset
delay_ms(10);
if(vs_read_reg(VS_HDAT0) || vs_read_reg(VS_HDAT1))
{
vs_setvolume(0); //0 -> analog power off
vs_reset(); //hard-reset
}
}
return;
}
void vs_start(void)
{
DEBUGOUT("VS: start\n");
vs_playing = 1;
vs_pause();
vs_setvolume(vs_vol);
buf_reset();
return;
}
