/*

    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"

#include "SDL_stdinc.h"

#include "soundcommon.h"

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

{

	soundsystem->rate = rate;

	if(format == 8) 

		soundsystem->buffersize = buffersize;

	else if(format == 16)

		soundsystem->buffersize = buffersize * sizeof(short);

	soundsystem->mixbuffer = (s8*)SDL_malloc(soundsystem->buffersize);

	//soundsystem->soundbuffer = soundsystem->mixbuffer;

	soundsystem->format = format;

	soundsystem->channel = channel;

	soundsystem->prevtimer = 0;

	soundsystem->soundcursor = 0;

	soundsystem->numsamples = 0;

	soundsystem->period = 0x1000000 / rate;

	soundsystem->cmd = INIT;

}

void SoundStartMixer(void)

{

	soundsystem->cmd |= MIX;

}

void SendCommandToArm7(u32 command)

{

    while (REG_IPC_FIFO_CR & IPC_FIFO_SEND_FULL);

    if (REG_IPC_FIFO_CR & IPC_FIFO_ERROR)

    {

        REG_IPC_FIFO_CR |= IPC_FIFO_SEND_CLEAR;

    } 

    REG_IPC_FIFO_TX = command;

}