diff options
Diffstat (limited to 'distrib/sdl-1.2.15/src/audio/nds/sound9.c')
| -rw-r--r-- | distrib/sdl-1.2.15/src/audio/nds/sound9.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/distrib/sdl-1.2.15/src/audio/nds/sound9.c b/distrib/sdl-1.2.15/src/audio/nds/sound9.c new file mode 100644 index 0000000..59c1c21 --- /dev/null +++ b/distrib/sdl-1.2.15/src/audio/nds/sound9.c @@ -0,0 +1,61 @@ +/* + 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; +} |