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$NetBSD: patch-ac,v 1.2 2000/02/14 02:44:35 wiz Exp $
--- ./snd_unix.c.orig Wed Jan 26 21:22:18 2000
+++ ./snd_unix.c Mon Feb 14 00:38:09 2000
@@ -8,13 +8,21 @@
/* #define SOUND_LINUX */ /* use linux sound header */
-#define SOUND_FREEBSD /* use freebsd sound header */
+/* #define SOUND_FREEBSD */ /* use freebsd sound header */
+#define SOUND_NETBSD /* use netbsd sound system */
#ifdef SOUND_LINUX
#define SOUND_HEADER <sys/soundcard.h>
+#define SOUND_DEVICE "/dev/dsp"
#endif
#ifdef SOUND_FREEBSD
#define SOUND_HEADER <machine/soundcard.h>
+#define SOUND_DEVICE "/dev/dsp"
+#endif
+
+#ifdef SOUND_NETBSD
+#define SOUND_HEADER <sys/audioio.h>
+#define SOUND_DEVICE "/dev/sound"
#endif
#include <stdio.h>
@@ -66,16 +74,21 @@
int snd_open(int samples_per_sync, int sample_rate)
{
- int tmp;
int result;
+#if defined(SOUND_LINUX) || defined(SOUND_FREEBSD)
+ int tmp;
int sound_rate;
int sound_frag;
+#endif
+#ifdef SOUND_NETBSD
+ audio_info_t info;
+#endif
waveptr = 0;
wavflag = 0;
- printf("opening /dev/dsp...");
- sound_fd = open("/dev/dsp", O_WRONLY);
+ printf("opening "SOUND_DEVICE"...");
+ sound_fd = open(SOUND_DEVICE, O_WRONLY);
if (sound_fd < 0) {
perror("failed");
sound_fd = 0;
@@ -83,7 +96,8 @@
} else {
printf("done.\n");
}
-
+
+#if defined(SOUND_LINUX) || defined(SOUND_FREEBSD)
printf("setting unsigned 8-bit format...");
tmp = AFMT_U8;
result = ioctl(sound_fd, SNDCTL_DSP_SETFMT, &tmp);
@@ -132,7 +146,41 @@
} else {
printf("done.\n");
}
+#endif
+#ifdef SOUND_NETBSD
+ AUDIO_INITINFO(&info);
+ printf("setting unsigned 8-bit format...");
+ info.play.encoding = AUDIO_ENCODING_ULINEAR;
+ /* this doesn't work for me, so ignore results */
+ result = ioctl(sound_fd, AUDIO_SETINFO, &info);
+ if (result < 0)
+ {
+ perror("warning: unsigned linear mode failed, using signed");
+ info.play.encoding = AUDIO_ENCODING_SLINEAR;
+ }
+ printf("setting sound rate to %dHz...", sample_rate);
+ info.play.sample_rate = sample_rate;
+ /* 8 bits per sample */
+ info.play.precision = 8;
+ printf("setting mono mode...");
+ info.play.channels = 1;
+ info.mode = AUMODE_PLAY_ALL;
+ /* "frag size" */
+ info.blocksize = 1 << 8;
+ /* "number of frags", hiwater mark */
+ info.hiwat = 8;
+ result = ioctl(sound_fd, AUDIO_SETINFO, &info);
+ if (result < 0) {
+ perror("initializing sound failed");
+ close(sound_fd);
+ sound_fd = 0;
+ return 0;
+ } else {
+ printf("done.\n");
+ }
+#endif
+
return 1;
}
@@ -141,6 +189,7 @@
if (sound_fd) {
close(sound_fd);
}
+ sound_fd = 0;
}
/*
|
