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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2012 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;
}
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