[sdl_omap.git] / src / audio / nds / sound9.c

/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2009 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;
}
Commit	Line	Data
e14743d1	1	/*
	2	SDL - Simple DirectMedia Layer
	3	Copyright (C) 1997-2009 Sam Lantinga
	4
	5	This library is free software; you can redistribute it and/or
	6	modify it under the terms of the GNU Lesser General Public
	7	License as published by the Free Software Foundation; either
	8	version 2.1 of the License, or (at your option) any later version.
	9
	10	This library is distributed in the hope that it will be useful,
	11	but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	Lesser General Public License for more details.
	14
	15	You should have received a copy of the GNU Lesser General Public
	16	License along with this library; if not, write to the Free Software
	17	Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	18
	19	Sam Lantinga
	20	slouken@libsdl.org
	21	*/
	22	#include "SDL_config.h"
	23	#include "SDL_stdinc.h"
	24
	25	#include "soundcommon.h"
	26
	27	void SoundSystemInit(u32 rate,u32 buffersize,u8 channel,u8 format)
	28	{
	29	soundsystem->rate = rate;
	30
	31	if(format == 8)
	32	soundsystem->buffersize = buffersize;
	33	else if(format == 16)
	34	soundsystem->buffersize = buffersize * sizeof(short);
	35
	36	soundsystem->mixbuffer = (s8*)SDL_malloc(soundsystem->buffersize);
	37	//soundsystem->soundbuffer = soundsystem->mixbuffer;
	38	soundsystem->format = format;
	39	soundsystem->channel = channel;
	40	soundsystem->prevtimer = 0;
	41	soundsystem->soundcursor = 0;
	42	soundsystem->numsamples = 0;
	43	soundsystem->period = 0x1000000 / rate;
	44	soundsystem->cmd = INIT;
	45	}
	46
	47	void SoundStartMixer(void)
	48	{
	49	soundsystem->cmd \|= MIX;
	50	}
	51
	52	void SendCommandToArm7(u32 command)
	53	{
	54	while (REG_IPC_FIFO_CR & IPC_FIFO_SEND_FULL);
	55	if (REG_IPC_FIFO_CR & IPC_FIFO_ERROR)
	56	{
	57	REG_IPC_FIFO_CR \|= IPC_FIFO_SEND_CLEAR;
	58	}
	59
	60	REG_IPC_FIFO_TX = command;
	61	}