NetBSD's new MI audio framework, but still only available for amiga,

after release it will replace our old MI stuff.  Things brings audio to
amiga out-of-the box.

1 files changed, 281 insertions, 0 deletions

diff --git a/sys/arch/amiga/include/audioio.h b/sys/arch/amiga/include/audioio.h
new file mode 100644
index 00000000000..735f3ada0f7
--- /dev/null
+++ b/sys/arch/amiga/include/audioio.h
@@ -0,0 +1,281 @@
+/*	$OpenBSD: audioio.h,v 1.1 1997/10/07 11:05:01 niklas Exp $	*/
+/*	$NetBSD: audioio.h,v 1.14 1997/08/26 19:03:57 augustss Exp $	*/
+
+/*
+ * Copyright (c) 1991-1993 Regents of the University of California.
+ * 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the Computer Systems
+ *	Engineering Group at Lawrence Berkeley Laboratory.
+ * 4. Neither the name of the University nor of the Laboratory may be used
+ *    to endorse or promote products derived from this software without
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
+ *
+ */
+
+#ifndef _SYS_AUDIOIO_H_
+#define _SYS_AUDIOIO_H_
+
+/*
+ * Audio device
+ */
+struct audio_prinfo {
+	u_int	sample_rate;	/* sample rate in bit/s */
+	u_int	channels;	/* number of channels, usually 1 or 2 */
+	u_int	precision;	/* number of bits/sample */
+	u_int	encoding;	/* data encoding (AUDIO_ENCODING_* above) */
+	u_int	gain;		/* volume level */
+	u_int	port;		/* selected I/O port */
+	u_long	seek;		/* BSD extension */
+	u_int	ispare[3];
+	/* Current state of device: */
+	u_int	samples;	/* number of samples */
+	u_int	eof;		/* End Of File (zero-size writes) counter */
+	u_char	pause;		/* non-zero if paused, zero to resume */
+	u_char	error;		/* non-zero if underflow/overflow ocurred */
+	u_char	waiting;	/* non-zero if another process hangs in open */
+	u_char	cspare[3];
+	u_char	open;		/* non-zero if currently open */
+	u_char	active;		/* non-zero if I/O is currently active */
+};
+typedef struct audio_prinfo audio_prinfo_t;
+
+struct audio_info {
+	struct	audio_prinfo play;	/* Info for play (output) side */
+	struct	audio_prinfo record;	/* Info for record (input) side */
+	u_int	buffersize;		/* total size audio buffer */
+	/* BSD extensions */
+	u_int	blocksize;	/* H/W read/write block size */
+	u_int	hiwat;		/* output high water mark */
+	u_int	lowat;		/* output low water mark */
+	u_int	backlog;	/* samples of output backlog to gen. */
+	u_int	mode;		/* current device mode */
+#define AUMODE_PLAY	0x01
+#define AUMODE_RECORD	0x02
+#define AUMODE_PLAY_ALL  0x04	/* don't do real-time correction */
+};
+typedef struct audio_info audio_info_t;
+
+#ifdef _KERNEL
+#define AUDIO_INITINFO(p)\
+	{ register int n = sizeof(struct audio_info); \
+	  register u_char *q = (u_char *) p; \
+	  while (n-- > 0) *q++ = 0xff; }
+
+#else
+#define AUDIO_INITINFO(p)\
+	(void)memset((void *)(p), 0xff, sizeof(struct audio_info))
+#endif
+
+/*
+ * Parameter for the AUDIO_GETDEV ioctl to determine current
+ * audio devices.
+ */
+#define MAX_AUDIO_DEV_LEN       16
+typedef struct audio_device {
+        char name[MAX_AUDIO_DEV_LEN];
+        char version[MAX_AUDIO_DEV_LEN];
+        char config[MAX_AUDIO_DEV_LEN];
+} audio_device_t;
+
+typedef struct audio_offset {
+	u_int	samples;	/* Total number of bytes transferred */
+	u_int	deltablks;	/* Blocks transferred since last checked */
+	u_int	offset;		/* Physical transfer offset in buffer */
+} audio_offset_t;
+
+/*
+ * Supported audio encodings
+ */
+/* Encoding ID's */
+#define	AUDIO_ENCODING_NONE		0 /* no encoding assigned */
+#define AUDIO_ENCODING_ULAW		1
+#define AUDIO_ENCODING_ALAW		2
+#define AUDIO_ENCODING_PCM16		3 /* obsolete */
+#define AUDIO_ENCODING_LINEAR		AUDIO_ENCODING_PCM16 /* obsolete */
+#define AUDIO_ENCODING_PCM8		4 /* obsolete */
+#define AUDIO_ENCODING_ADPCM		5
+#define AUDIO_ENCODING_SLINEAR_LE	6
+#define AUDIO_ENCODING_SLINEAR_BE	7
+#define AUDIO_ENCODING_ULINEAR_LE	8
+#define AUDIO_ENCODING_ULINEAR_BE	9
+#define AUDIO_ENCODING_SLINEAR		10
+#define AUDIO_ENCODING_ULINEAR		11
+
+typedef struct audio_encoding {
+	int index;
+	char name[MAX_AUDIO_DEV_LEN];
+	int encoding;
+	int precision;
+	int flags;
+#define AUDIO_ENCODINGFLAG_EMULATED 1 /* software emulation mode */
+} audio_encoding_t;
+
+/*
+ * Audio device operations
+ */
+#define AUDIO_GETINFO	_IOR('A', 21, struct audio_info)
+#define AUDIO_SETINFO	_IOWR('A', 22, struct audio_info)
+#define AUDIO_DRAIN	_IO('A', 23)
+#define AUDIO_FLUSH	_IO('A', 24)
+#define AUDIO_WSEEK	_IOR('A', 25, u_long)
+#define AUDIO_RERROR	_IOR('A', 26, int)
+#define AUDIO_GETDEV	_IOR('A', 27, struct audio_device)
+#define AUDIO_GETENC	_IOWR('A', 28, struct audio_encoding)
+#define AUDIO_GETFD	_IOR('A', 29, int)
+#define AUDIO_SETFD	_IOWR('A', 30, int)
+#define AUDIO_PERROR	_IOR('A', 31, int)
+#define AUDIO_GETIOFFS	_IOR('A', 32, struct audio_offset)
+#define AUDIO_GETOOFFS	_IOR('A', 33, struct audio_offset)
+#define AUDIO_GETPROPS	_IOR('A', 34, int)
+#define  AUDIO_PROP_FULLDUPLEX	0x01
+#define  AUDIO_PROP_MMAP	0x02
+#define  AUDIO_PROP_INDEPENDENT	0x04
+
+/*
+ * Mixer device
+ */
+#define AUDIO_MIN_GAIN	0
+#define AUDIO_MAX_GAIN	255
+
+typedef struct mixer_level {
+	int num_channels;
+	u_char level[8];	/* [num_channels] */
+} mixer_level_t;
+#define AUDIO_MIXER_LEVEL_MONO	0
+#define AUDIO_MIXER_LEVEL_LEFT	0
+#define AUDIO_MIXER_LEVEL_RIGHT	1
+
+/*
+ * Device operations
+ */
+
+typedef struct audio_mixer_name {
+	char name[MAX_AUDIO_DEV_LEN];
+	int msg_id;
+} audio_mixer_name_t;
+
+typedef struct mixer_devinfo {
+	int index;
+	audio_mixer_name_t label;
+	int type;
+#define AUDIO_MIXER_CLASS	0
+#define AUDIO_MIXER_ENUM	1
+#define AUDIO_MIXER_SET		2
+#define AUDIO_MIXER_VALUE	3
+	int mixer_class;
+	int next, prev;
+#define AUDIO_MIXER_LAST	-1
+	union {
+		struct audio_mixer_enum {
+			int num_mem;
+			struct {
+				audio_mixer_name_t label;
+				int ord;
+			} member[32];
+		} e;
+		struct audio_mixer_set {
+			int num_mem;
+			struct {
+				audio_mixer_name_t label;
+				int mask;
+			} member[32];
+		} s;
+		struct audio_mixer_value {
+			audio_mixer_name_t units;
+			int num_channels;
+		} v;
+	} un;
+} mixer_devinfo_t;
+
+
+typedef struct mixer_ctrl {
+	int dev;
+	int type;
+	union {
+		int ord;		/* enum */
+		int mask;		/* set */
+		mixer_level_t value;	/* value */
+	} un;
+} mixer_ctrl_t;
+
+/*
+ * Mixer operations
+ */
+#define AUDIO_MIXER_READ		_IOWR('M', 0, mixer_ctrl_t)
+#define AUDIO_MIXER_WRITE		_IOWR('M', 1, mixer_ctrl_t)
+#define AUDIO_MIXER_DEVINFO		_IOWR('M', 2, mixer_devinfo_t)
+
+/*
+ * Well known device names
+ */
+#define AudioNmicrophone	"mic"
+#define AudioNline	"line"
+#define AudioNcd	"CD"
+#define AudioNdac	"DAC"
+#define AudioNrecord	"record"
+#define AudioNvolume	"volume"
+#define AudioNmonitor	"monitor"
+#define AudioNtreble	"treble"
+#define AudioNbass	"bass"
+#define AudioNspeaker	"speaker"
+#define AudioNheadphone	"headphones"
+#define AudioNoutput	"output"
+#define AudioNinput	"input"
+#define AudioNmaster	"master"
+#define AudioNstereo	"stereo"
+#define AudioNmono	"mono"
+#define AudioNspatial	"spatial"
+#define AudioNsurround	"surround"
+#define AudioNpseudo	"pseudo"
+#define AudioNmute	"mute"
+#define AudioNenhanced	"enhanced"
+#define AudioNon	"on"
+#define AudioNoff	"off"
+#define AudioNmode	"mode"
+#define AudioNsource	"source"
+#define AudioNfmsynth	"fmsynth"
+#define AudioNwave	"wave"
+#define AudioNmidi	"midi"
+#define AudioNmixerout	"mixerout"
+#define AudioNswap	"swap"	/* swap left and right channels */
+
+#define AudioEmulaw "mulaw"
+#define AudioEalaw "alaw"
+#define AudioEadpcm "ADPCM"
+#define AudioElinear "linear"
+#define AudioElinear_le "linear_le"
+#define AudioElinear_be "linear_be"
+#define AudioEulinear "ulinear"
+#define AudioEulinear_le "ulinear_le"
+#define AudioEulinear_be "ulinear_be"
+
+#define AudioCInputs	"Inputs"
+#define AudioCOutputs	"Outputs"
+#define AudioCRecord	"Record"
+#define AudioCMonitor	"Monitor"
+#define AudioCEqualization	"Equalization"
+
+#endif /* !_SYS_AUDIOIO_H_ */