741a7158e2
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@7162 a1c6a512-1295-4272-9138-f99709370657
95 lines
2.4 KiB
C
95 lines
2.4 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2005 by Daniel Stenberg <daniel@haxx.se>
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "autoconf.h"
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#ifdef ROCKBOX_HAS_SIMSOUND /* play sound in sim enabled */
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include <sys/soundcard.h>
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#include "sound.h"
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int sim_sound_init(void)
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{
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int fd;
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int pcmbits;
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int rc;
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int channels;
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int rate;
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fd = open("/dev/dsp", O_WRONLY);
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if(-1 == fd)
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return 1;
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pcmbits = 16;
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rc = ioctl(fd, SOUND_PCM_WRITE_BITS, &pcmbits);
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rc = ioctl(fd, SOUND_PCM_READ_BITS, &pcmbits);
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channels = 2; /* Number of channels, 1=mono */
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rc = ioctl(fd, SOUND_PCM_WRITE_CHANNELS, &channels);
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rc = ioctl(fd, SOUND_PCM_READ_CHANNELS, &channels);
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rate = 44100; /* Yeah. sampling rate */
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rc = ioctl(fd, SOUND_PCM_WRITE_RATE, &rate);
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rc = ioctl(fd, SOUND_PCM_READ_RATE, &rate);
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return fd;
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}
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void sim_sound_play(int soundfd, char *buffer, long len)
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{
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write(soundfd, buffer, len);
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}
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void sound_playback_thread(void)
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{
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int soundfd = sim_sound_init();
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unsigned char *buf;
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long size;
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while(-1 == soundfd)
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sleep(100000); /* wait forever, can't play sound! */
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do {
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while(!sound_get_pcm)
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/* TODO: fix a fine thread-synch mechanism here */
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usleep(10000);
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do {
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sound_get_pcm(&buf, &size);
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if(!size) {
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sound_get_pcm = NULL;
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break;
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}
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sim_sound_play(soundfd, buf, size);
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usleep(10000);
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} while(size);
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} while(1);
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}
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#endif /* ROCKBOX_HAS_SIMSOUND */
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