static void do_dma(struct ai_controller* ai, const struct ai_dma* dma)
{
/* lazy initialization of sample format */
if (ai->samples_format_changed)
{
unsigned int frequency = (ai->regs[AI_DACRATE_REG] == 0)
? 44100 /* default sample rate */
: ai->vi->clock / (1 + ai->regs[AI_DACRATE_REG]);
unsigned int bits = (ai->regs[AI_BITRATE_REG] == 0)
? 16 /* default bit rate */
: 1 + ai->regs[AI_BITRATE_REG];
ai->set_audio_format(ai, frequency, bits);
ai->samples_format_changed = 0;
ai->last_read = 0;
}
ai->last_read = dma->length;
/* schedule end of dma event */
cp0_update_count();
add_interrupt_event(AI_INT, dma->duration);
}
static void do_dma(struct ai_controller* ai, struct ai_dma* dma)
{
/* lazy initialization of sample format */
if (ai->samples_format_changed)
{
unsigned int frequency = (ai->regs[AI_DACRATE_REG] == 0)
? 44100 /* default sample rate */
: ai->vi->clock / (1 + ai->regs[AI_DACRATE_REG]);
unsigned int bits = (ai->regs[AI_BITRATE_REG] == 0)
? 16 /* default bit rate */
: 1 + ai->regs[AI_BITRATE_REG];
ai->iaout->set_format(ai->aout, frequency, bits);
ai->samples_format_changed = 0;
}
ai->last_read = dma->length;
if (ai->delayed_carry) dma->address += 0x2000;
if (((dma->address + dma->length) & 0x1FFF) == 0)
ai->delayed_carry = 1;
else
ai->delayed_carry = 0;
/* schedule end of dma event */
cp0_update_count(ai->mi->r4300);
add_interrupt_event(&ai->mi->r4300->cp0, AI_INT, dma->duration);
}
void reset_soft(void)
{
add_interrupt_event(HW2_INT, 0); /* Hardware 2 Interrupt immediately */
add_interrupt_event(NMI_INT, 50000000); /* Non maskable Interrupt after 1/2 second */
}
