s_do.c

/*
# _____     ___ ____     ___ ____
#  ____|   |    ____|   |        | |____|
# |     ___|   |____ ___|    ____| |    \    PS2DEV Open Source Project.
#-----------------------------------------------------------------------
# Copyright ps2dev - http://www.ps2dev.org
# Licenced under Academic Free License version 2.0
# Review ps2sdk README & LICENSE files for further details.
*/
 
#include "libspu2_internal.h"
 
void SpuSetDigitalOut(int mode)
{
    s16 v1;
    s16 v3;
 
    v1 = *((vu16 *)0xBF9007C0);
    v3 = *((vu16 *)0xBF9007C6);
    switch ( mode & 0xF )
    {
        case SPU_SPDIF_OUT_OFF:
            v1 &= ~0x128;
            break;
        case SPU_SPDIF_OUT_PCM:
            v3 &= ~2;
            v1 &= ~0x128;
            v1 |= 0x20;
            break;
        case SPU_SPDIF_OUT_BITSTREAM:
            v3 |= 2;
            v1 &= ~0x128;
            v1 |= 0x100;
            break;
        case SPU_SPDIF_OUT_BYPASS:
            v1 &= ~0x128;
            v1 |= 8;
            break;
        default:
            break;
    }
    switch ( mode & 0xF0 )
    {
        case SPU_SPDIF_COPY_PROHIBIT:
            v3 |= 0x8000;
            break;
        case SPU_SPDIF_COPY_NORMAL:
        default:
            v3 &= ~0x8000;
            break;
    }
    switch ( mode & 0xF00 )
    {
        case SPU_SPDIF_MEDIA_DVD:
            *((vu16 *)0xBF9007C8) = 512;
            v3 |= 0x1800;
            break;
        case SPU_SPDIF_MEDIA_CD:
            *((vu16 *)0xBF9007C8) = 0;
            v3 &= ~0x1800;
            break;
        default:
            *((vu16 *)0xBF9007C8) = 512;
            v3 &= ~0x1800;
            v3 |= 0x800;
            break;
    }
    *((vu16 *)0xBF9007C0) = v1;
    *((vu16 *)0xBF9007C6) = v3;
}