1 files changed, 67 insertions, 0 deletions

diff --git a/uisimulator/x11/oss_sound.c b/uisimulator/x11/oss_sound.c
new file mode 100644
index 0000000000..6827842689
--- /dev/null
+++ b/uisimulator/x11/oss_sound.c
@@ -0,0 +1,67 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ *
+ * Copyright (C) 2002 Dave Chapman
+ *
+ * oss_sound - a sound driver for Linux (and others?) OSS audio
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#include <stdio.h>
+#include <fcntl.h>
+
+#include <linux/soundcard.h>
+#include "oss_sound.h"
+
+/* We want to use the "real" open in some cases */
+#undef open
+
+int init_sound(sound_t* sound) {
+  *sound=open("/dev/dsp", O_WRONLY);
+
+  if (sound < 0) {
+    fprintf(stderr,"Can not open /dev/dsp - Aborting - sound=%d\n",sound);
+    exit(-1);
+  }
+}
+
+int config_sound(sound_t* sound, int sound_freq, int channels) {
+  int format=AFMT_U16_LE;
+  int setting=0x000C000D;  // 12 fragments size 8kb ? WHAT IS THIS?
+
+  if (ioctl(*sound,SNDCTL_DSP_SETFRAGMENT,&setting)==-1) {
+    perror("SNDCTL_DSP_SETFRAGMENT");
+  }
+
+  if (ioctl(*sound,SNDCTL_DSP_CHANNELS,&channels)==-1) {
+    perror("SNDCTL_DSP_STEREO");
+  }
+  if (channels==0) { fprintf(stderr,"Warning, only mono supported\n"); }
+
+  if (ioctl(*sound,SNDCTL_DSP_SETFMT,&format)==-1) {
+    perror("SNDCTL_DSP_SETFMT");
+  }
+
+  if (ioctl(*sound,SNDCTL_DSP_SPEED,&sound_freq)==-1) {
+    perror("SNDCTL_DSP_SPEED");
+  }
+}
+
+int output_sound(sound_t* sound,const void* buf, int count) {
+  return(write(*sound,buf,count));
+}
+
+void close_sound(sound_t* sound) {
+  if (*sound) close(*sound);
+}