New file for pcaudio device driver

1 files changed, 75 insertions, 0 deletions

diff --git a/sys/i386/include/pcaudioio.h b/sys/i386/include/pcaudioio.h
new file mode 100644
index 0000000..f54c8d6
--- /dev/null
+++ b/sys/i386/include/pcaudioio.h
@@ -0,0 +1,75 @@
+/*-
+ * Copyright (c) 1994 Søren Schmidt
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software withough specific prior written permission
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *	$Id: 
+ */
+
+#ifndef _PCAUDIOIO_H_
+#define	_PCAUDIOIO_H_
+
+typedef struct audio_prinfo {
+	unsigned	sample_rate;	/* samples per second */
+	unsigned	channels;	/* # of channels (interleaved) */
+	unsigned	precision;	/* sample size in bits */
+	unsigned	encoding;	/* encoding method used */
+
+	unsigned	gain;		/* volume level: 0 - 255 */
+	unsigned	port;		/* input/output device */
+	unsigned	_fill1[4];
+
+	unsigned	samples;	/* samples played */
+	unsigned	eof;		/* ?!? */
+	unsigned char	pause;		/* !=0 pause, ==0 continue */
+	unsigned char	error;		/* !=0 if overflow/underflow */
+	unsigned char	waiting;	/* !=0 if others wants access */
+	unsigned char	_fill2[3];
+
+	unsigned char	open; 		/* is device open */
+	unsigned char	active;		/* !=0 if sound hardware is active */
+} audio_prinfo_t;
+
+typedef struct audio_info {
+	audio_prinfo_t	play;
+	audio_prinfo_t	record;	
+	unsigned	monitor_gain;
+	unsigned	_fill[4];
+} audio_info_t;
+
+#define	AUDIO_ENCODING_ULAW	(1)	/* u-law encoding */
+#define	AUDIO_ENCODING_ALAW	(2)	/* A-law encoding */
+#define	AUDIO_ENCODING_RAW	(3)	/* linear encoding */
+
+#define	AUDIO_MIN_GAIN		(0)	/* minimum volume value */
+#define	AUDIO_MAX_GAIN		(255)	/* maximum volume value */
+
+#define	AUDIO_INITINFO(i)	memset((void*)i, 0xff, sizeof(audio_info_t))
+
+#define	AUDIO_GETINFO		_IOR('A', 1, audio_info_t)
+#define	AUDIO_SETINFO		_IOWR('A', 2, audio_info_t)
+#define	AUDIO_DRAIN		_IO('A', 3)
+#define	AUDIO_FLUSH		_IO('A', 4)
+
+#endif /*!_PCAUDIOIO_H*/