This is the Linux generic soundcard driver, version 1.0c. Supports

SBlaster/Adlib/ProAudio Spectrum/Gravis/etc cards.  This is a BETA test
driver, please test it and get back to me!

1 files changed, 105 insertions, 0 deletions

diff --git a/sys/i386/isa/sound/midibuf.c b/sys/i386/isa/sound/midibuf.c
new file mode 100644
index 0000000..ca1bdf7
--- /dev/null
+++ b/sys/i386/isa/sound/midibuf.c
@@ -0,0 +1,105 @@
+/*
+ * linux/kernel/chr_drv/sound/midibuf.c
+ * 
+ * Device file manager for /dev/midi
+ * 
+ * NOTE! This part of the driver is currently just a stub.
+ * 
+ * (C) 1992  Hannu Savolainen (hsavolai@cs.helsinki.fi) See COPYING for further
+ * details. Should be distributed with this file.
+ * 
+ * Based on the Midi driver for bsd386 by Mike Durian.
+ */
+
+#include "sound_config.h"
+
+#if defined(CONFIGURE_SOUNDCARD) && !defined(EXCLUDE_MPU401)
+
+#if 0
+#include "midiioctl.h"
+#include "midivar.h"
+#endif
+
+static int      midibuf_busy = 0;
+
+int
+MIDIbuf_open (int dev, struct fileinfo *file)
+{
+  int             mode, err;
+
+  dev = dev >> 4;
+  mode = file->mode & O_ACCMODE;
+
+  if (midibuf_busy)
+    return RET_ERROR (EBUSY);
+
+  if (!mpu401_dev)
+    {
+      printk ("Midi: MPU-401 compatible Midi interface not present\n");
+      return RET_ERROR (ENXIO);
+    }
+
+  if ((err = midi_devs[mpu401_dev]->open (mpu401_dev, mode)) < 0)
+    return err;
+
+  midibuf_busy = 1;
+
+  return RET_ERROR (ENXIO);
+}
+
+void
+MIDIbuf_release (int dev, struct fileinfo *file)
+{
+  int             mode;
+
+  dev = dev >> 4;
+  mode = file->mode & O_ACCMODE;
+
+  midi_devs[mpu401_dev]->close (mpu401_dev);
+  midibuf_busy = 0;
+}
+
+int
+MIDIbuf_write (int dev, struct fileinfo *file, snd_rw_buf * buf, int count)
+{
+
+  dev = dev >> 4;
+
+  return count;
+}
+
+
+int
+MIDIbuf_read (int dev, struct fileinfo *file, snd_rw_buf * buf, int count)
+{
+  dev = dev >> 4;
+
+  return RET_ERROR (EIO);
+}
+
+int
+MIDIbuf_ioctl (int dev, struct fileinfo *file,
+	       unsigned int cmd, unsigned int arg)
+{
+  dev = dev >> 4;
+
+  switch (cmd)
+    {
+
+    default:
+      return midi_devs[0]->ioctl (dev, cmd, arg);
+    }
+}
+
+void
+MIDIbuf_bytes_received (int dev, unsigned char *buf, int count)
+{
+}
+
+long
+MIDIbuf_init (long mem_start)
+{
+  return mem_start;
+}
+
+#endif