/*

    SDL - Simple DirectMedia Layer

    Copyright (C) 1997-2006 Sam Lantinga

    This library is free software; you can redistribute it and/or

    modify it under the terms of the GNU Lesser General Public

    License as published by the Free Software Foundation; either

    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,

    but WITHOUT ANY WARRANTY; without even the implied warranty of

    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public

    License along with this library; if not, write to the Free Software

    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga

    slouken@libsdl.org

*/

#include "SDL_config.h"

#ifndef __SOUNDCOMMON_H

#define __SOUNDCOMMON_H

#include <nds.h>

#define CLOCK (1 << 25)

#ifdef __cplusplus

extern "C" {

#endif

typedef enum

{

	NONE = 0,

	INIT = 1,

	MIX = 2,

	MIXING = 4,

	STOP = 8

}CommandType;

typedef enum

{

	FIFO_NONE = 0,

	UPDATEON_ARM9 = 1,

	MIXCOMPLETE_ONARM9 = 2,

}FifoType; 

typedef struct

{

	s8 *mixbuffer;//,*soundbuffer;

	u32 rate;

	u32 buffersize;

	u32 cmd;

	u8 channel,format;

	u32 soundcursor,numsamples;

	s32 prevtimer;

	s16 period;

}S_SoundSystem;

#define soundsystem ((S_SoundSystem*)((u32)(IPC)+sizeof(TransferRegion)))

#ifdef ARM9

extern void SoundSystemInit(u32 rate,u32 buffersize,u8 channel,u8 format);

extern void SoundStartMixer(void);

extern void SendCommandToArm7(u32 command);

#else

extern void SoundVBlankIrq(void);

extern void SoundSwapAndMix(void);

extern void SoundSetTimer(int period);

extern void SoundFifoHandler(void);

extern void SendCommandToArm9(u32 command);

#endif

#ifdef __cplusplus

}

#endif

#endif