snes9x/msu1.h

59 lines
1.4 KiB
C

/*****************************************************************************\
Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
This file is licensed under the Snes9x License.
For further information, consult the LICENSE file in the root directory.
\*****************************************************************************/
#ifndef _MSU1_H_
#define _MSU1_H_
#include "snes9x.h"
#include "apu/resampler.h"
#define MSU1_REVISION 0x02
struct SMSU1
{
uint8 MSU1_STATUS;
uint32 MSU1_DATA_SEEK;
uint32 MSU1_DATA_POS;
uint16 MSU1_TRACK_SEEK;
uint16 MSU1_CURRENT_TRACK;
uint32 MSU1_RESUME_TRACK;
uint8 MSU1_VOLUME;
uint8 MSU1_CONTROL;
uint32 MSU1_AUDIO_POS;
uint32 MSU1_RESUME_POS;
};
enum SMSU1_FLAG {
Revision = 0x07, // bitmask, not the actual version number
AudioError = 0x08,
AudioPlaying = 0x10,
AudioRepeating = 0x20,
AudioBusy = 0x40,
DataBusy = 0x80
};
enum SMSU1_CMD {
Play = 0x01,
Repeat = 0x02,
Resume = 0x04
};
extern struct SMSU1 MSU1;
void S9xResetMSU(void);
void S9xMSU1Init(void);
void S9xMSU1DeInit(void);
bool S9xMSU1ROMExists(void);
STREAM S9xMSU1OpenFile(const char *msu_ext, bool skip_unpacked = FALSE);
void S9xMSU1Init(void);
void S9xMSU1Generate(size_t sample_count);
uint8 S9xMSU1ReadPort(uint8 port);
void S9xMSU1WritePort(uint8 port, uint8 byte);
size_t S9xMSU1Samples(void);
void S9xMSU1SetOutput(Resampler *resampler);
void S9xMSU1PostLoadState(void);
#endif