int codec_load_ram(char* codecptr, int size, void* ptr2, int bufwrap,
struct codec_api *api)
{
enum codec_status (*codec_start)(const struct codec_api* api);
int status;
#ifndef SIMULATOR
int copy_n;
if ((char *)&codecbuf[0] != codecptr) {
/* zero out codec buffer to ensure a properly zeroed bss area */
memset(codecbuf, 0, CODEC_SIZE);
size = MIN(size, CODEC_SIZE);
copy_n = MIN(size, bufwrap);
memcpy(codecbuf, codecptr, copy_n);
size -= copy_n;
if (size > 0) {
memcpy(&codecbuf[copy_n], ptr2, size);
}
}
codec_start = (void*)&codecbuf;
#else /* SIMULATOR */
int pd;
codec_start = sim_codec_load_ram(codecptr, size, ptr2, bufwrap, &pd);
if (pd < 0)
return CODEC_ERROR;
#endif /* SIMULATOR */
invalidate_icache();
status = codec_start(api);
#ifdef SIMULATOR
sim_codec_close(pd);
#endif
return status;
}
static void toccata_put(uaecptr addr, uae_u8 v)
{
struct toccata_data *data = &toccata;
int idx = data->ad1848_index & 15;
#if DEBUG_TOCCATA > 2
if (addr & 0x4000)
write_log(_T("TOCCATA PUT %08x %02x %d PC=%08X\n"), addr, v, idx, M68K_GETPC);
#endif
if ((addr & 0x6801) == 0x6001) {
// AD1848 register 0
data->ad1848_index = v;
} else if ((addr & 0x6801) == 0x6801) {
// AD1848 register 1
uae_u8 old = data->ad1848_regs[idx];
data->ad1848_regs[idx] = v;
#if DEBUG_TOCCATA > 0
write_log(_T("TOCCATA PUT reg %d = %02x PC=%08x\n"), idx, v, M68K_GETPC);
#endif
switch(idx)
{
case 9:
if (v & 8) // ACI enabled
data->autocalibration = 50;
if (!(old & 3) && (v & 3))
codec_start();
else if ((old & 3) && !(v & 3))
codec_stop();
break;
case 2:
case 3:
case 4:
case 5:
case 6:
case 7:
case 8:
calculate_volume_toccata();
break;
}
} else if ((addr & 0x6800) == 0x2000) {
// FIFO input
if (data->toccata_status & STATUS_FIFO_PLAY) {
// 7202LA datasheet says fifo can't overflow
if (((data->fifo_write_index + 1) % FIFO_SIZE) != data->fifo_read_index) {
data->fifo[data->fifo_write_index] = v;
data->fifo_write_index++;
data->fifo_write_index %= FIFO_SIZE;
data->data_in_fifo++;
}
}
data->toccata_irq &= ~STATUS_READ_PLAY_HALF;
data->fifo_half &= ~STATUS_FIFO_PLAY;
} else if ((addr & 0x6800) == 0x0000) {
// Board status
if (v & STATUS_RESET) {
codec_stop();
data->toccata_status = 0;
data->toccata_irq = 0;
v = 0;
}
if (v == STATUS_ACTIVE) {
data->fifo_write_index = 0;
data->fifo_read_index = 0;
data->data_in_fifo = 0;
data->toccata_status = 0;
data->toccata_irq = 0;
data->fifo_half = 0;
}
data->toccata_status = v;
#if DEBUG_TOCCATA > 0
write_log(_T("TOCCATA PUT STATUS %08x %02x %d PC=%08X\n"), addr, v, idx, M68K_GETPC);
#endif
} else {
write_log(_T("TOCCATA PUT UNKNOWN %08x\n"), addr);
}
}
