/*

SDL - Simple DirectMedia Layer

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;

}