1322 lines
45 KiB
C
1322 lines
45 KiB
C
/*
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* soundcard.h
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*
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* Copyright by Hannu Savolainen 1993
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* Modified for the new FreeBSD sound driver by Luigi Rizzo, 1997
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR
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* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SOUNDCARD_H
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#define SOUNDCARD_H
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/*
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* If you make modifications to this file, please contact me before
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* distributing the modified version. There is already enough
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* diversity in the world.
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*
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* Regards,
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* Hannu Savolainen
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* hannu@voxware.pp.fi
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*
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**********************************************************************
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* PS. The Hacker's Guide to VoxWare available from
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* nic.funet.fi:pub/OS/Linux/ALPHA/sound. The file is
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* snd-sdk-doc-0.1.ps.gz (gzipped postscript). It contains
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* some useful information about programming with VoxWare.
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* (NOTE! The pub/OS/Linux/ALPHA/ directories are hidden. You have
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* to cd inside them before the files are accessible.)
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**********************************************************************
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*/
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#include <sys/types.h>
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#ifndef _IOWR
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#include <sys/ioccom.h>
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#endif /* !_IOWR */
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/*
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* The first part of this file contains the new FreeBSD sound ioctl
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* interface. Tries to minimize the number of different ioctls, and
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* to be reasonably general.
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*
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* 970821: some of the new calls have not been implemented yet.
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*/
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/*
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* the following three calls extend the generic file descriptor
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* interface. AIONWRITE is the dual of FIONREAD, i.e. returns the max
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* number of bytes for a write operation to be non-blocking.
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*
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* AIOGSIZE/AIOSSIZE are used to change the behaviour of the device,
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* from a character device (default) to a block device. In block mode,
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* (not to be confused with blocking mode) the main difference for the
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* application is that select() will return only when a complete
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* block can be read/written to the device, whereas in character mode
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* select will return true when one byte can be exchanged. For audio
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* devices, character mode makes select almost useless since one byte
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* will always be ready by the next sample time (which is often only a
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* handful of microseconds away).
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* Use a size of 0 or 1 to return to character mode.
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*/
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#define AIONWRITE _IOR('A', 10, int) /* get # bytes to write */
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struct snd_size {
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int play_size;
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int rec_size;
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};
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#define AIOGSIZE _IOR('A', 11, struct snd_size)/* read current blocksize */
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#define AIOSSIZE _IOWR('A', 11, struct snd_size) /* sets blocksize */
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/*
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* The following constants define supported audio formats. The
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* encoding follows voxware conventions, i.e. 1 bit for each supported
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* format. We extend it by using bit 31 (RO) to indicate full-duplex
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* capability, and bit 29 (RO) to indicate that the card supports/
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* needs different formats on capture & playback channels.
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* Bit 29 (RW) is used to indicate/ask stereo.
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*/
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# define AFMT_QUERY 0x00000000 /* Return current fmt */
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# define AFMT_MU_LAW 0x00000001
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# define AFMT_A_LAW 0x00000002
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# define AFMT_IMA_ADPCM 0x00000004
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# define AFMT_U8 0x00000008
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# define AFMT_S16_LE 0x00000010 /* Little endian signed 16*/
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# define AFMT_S16_BE 0x00000020 /* Big endian signed 16 */
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# define AFMT_S8 0x00000040
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# define AFMT_U16_LE 0x00000080 /* Little endian U16 */
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# define AFMT_U16_BE 0x00000100 /* Big endian U16 */
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# define AFMT_MPEG 0x00000200 /* MPEG (2) audio */
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# define AFMT_STEREO 0x10000000 /* can do/want stereo */
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/*
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* the following are really capabilities
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*/
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# define AFMT_WEIRD 0x20000000 /* weird hardware... */
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/*
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* AFMT_WEIRD reports that the hardware might need to operate
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* with different formats in the playback and capture
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* channels when operating in full duplex.
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* As an example, SoundBlaster16 cards only support U8 in one
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* direction and S16 in the other one, and applications should
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* be aware of this limitation.
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*/
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# define AFMT_FULLDUPLEX 0x80000000 /* can do full duplex */
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/*
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* The following structure is used to get/set format and sampling rate.
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* While it would be better to have things such as stereo, bits per
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* sample, endiannes, etc split in different variables, it turns out
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* that formats are not that many, and not all combinations are possible.
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* So we followed the Voxware approach of associating one bit to each
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* format.
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*/
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typedef struct _snd_chan_param {
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u_long play_rate; /* sampling rate */
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u_long rec_rate; /* sampling rate */
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u_long play_format; /* everything describing the format */
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u_long rec_format; /* everything describing the format */
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} snd_chan_param;
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#define AIOGFMT _IOR('f', 12, snd_chan_param) /* get format */
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#define AIOSFMT _IOWR('f', 12, snd_chan_param) /* sets format */
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/*
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* The following structure is used to get/set the mixer setting.
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* Up to 32 mixers are supported, each one with up to 32 channels.
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*/
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typedef struct _snd_mix_param {
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u_char subdev; /* which output */
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u_char line; /* which input */
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u_char left,right; /* volumes, 0..255, 0 = mute */
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} snd_mix_param ;
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/* XXX AIOGMIX, AIOSMIX not implemented yet */
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#define AIOGMIX _IOWR('A', 13, snd_mix_param) /* return mixer status */
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#define AIOSMIX _IOWR('A', 14, snd_mix_param) /* sets mixer status */
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/*
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* channel specifiers used in AIOSTOP and AIOSYNC
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*/
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#define AIOSYNC_PLAY 0x1 /* play chan */
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#define AIOSYNC_CAPTURE 0x2 /* capture chan */
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/* AIOSTOP stop & flush a channel, returns the residual count */
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#define AIOSTOP _IOWR ('A', 15, int)
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/* alternate method used to notify the sync condition */
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#define AIOSYNC_SIGNAL 0x100
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#define AIOSYNC_SELECT 0x200
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/* what the 'pos' field refers to */
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#define AIOSYNC_READY 0x400
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#define AIOSYNC_FREE 0x800
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typedef struct _snd_sync_parm {
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long chan ; /* play or capture channel, plus modifier */
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long pos;
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} snd_sync_parm;
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#define AIOSYNC _IOWR ('A', 15, snd_sync_parm) /* misc. synchronization */
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/*
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* The following is used to return device capabilities. If the structure
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* passed to the ioctl is zeroed, default values are returned for rate
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* and formats, a bitmap of available mixers is returned, and values
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* (inputs, different levels) for the first one are returned.
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*
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* If formats, mixers, inputs are instantiated, then detailed info
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* are returned depending on the call.
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*/
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typedef struct _snd_capabilities {
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u_long rate_min, rate_max; /* min-max sampling rate */
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u_long formats;
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u_long bufsize; /* DMA buffer size */
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u_long mixers; /* bitmap of available mixers */
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u_long inputs; /* bitmap of available inputs (per mixer) */
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u_short left, right; /* how many levels are supported */
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} snd_capabilities;
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#define AIOGCAP _IOWR('A', 15, snd_capabilities) /* get capabilities */
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/*
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* here is the old (Voxware) ioctl interface
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*/
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/*
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* IOCTL Commands for /dev/sequencer
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*/
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#define SNDCTL_SEQ_RESET _IO ('Q', 0)
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#define SNDCTL_SEQ_SYNC _IO ('Q', 1)
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#define SNDCTL_SYNTH_INFO _IOWR('Q', 2, struct synth_info)
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#define SNDCTL_SEQ_CTRLRATE _IOWR('Q', 3, int) /* Set/get timer res.(hz) */
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#define SNDCTL_SEQ_GETOUTCOUNT _IOR ('Q', 4, int)
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#define SNDCTL_SEQ_GETINCOUNT _IOR ('Q', 5, int)
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#define SNDCTL_SEQ_PERCMODE _IOW ('Q', 6, int)
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#define SNDCTL_FM_LOAD_INSTR _IOW ('Q', 7, struct sbi_instrument) /* Valid for FM only */
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#define SNDCTL_SEQ_TESTMIDI _IOW ('Q', 8, int)
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#define SNDCTL_SEQ_RESETSAMPLES _IOW ('Q', 9, int)
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#define SNDCTL_SEQ_NRSYNTHS _IOR ('Q',10, int)
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#define SNDCTL_SEQ_NRMIDIS _IOR ('Q',11, int)
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#define SNDCTL_MIDI_INFO _IOWR('Q',12, struct midi_info)
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#define SNDCTL_SEQ_THRESHOLD _IOW ('Q',13, int)
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#define SNDCTL_SEQ_TRESHOLD SNDCTL_SEQ_THRESHOLD /* there was once a typo */
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#define SNDCTL_SYNTH_MEMAVL _IOWR('Q',14, int) /* in=dev#, out=memsize */
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#define SNDCTL_FM_4OP_ENABLE _IOW ('Q',15, int) /* in=dev# */
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#define SNDCTL_PMGR_ACCESS _IOWR('Q',16, struct patmgr_info)
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#define SNDCTL_SEQ_PANIC _IO ('Q',17)
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#define SNDCTL_SEQ_OUTOFBAND _IOW ('Q',18, struct seq_event_rec)
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struct seq_event_rec {
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u_char arr[8];
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};
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#define SNDCTL_TMR_TIMEBASE _IOWR('T', 1, int)
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#define SNDCTL_TMR_START _IO ('T', 2)
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#define SNDCTL_TMR_STOP _IO ('T', 3)
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#define SNDCTL_TMR_CONTINUE _IO ('T', 4)
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#define SNDCTL_TMR_TEMPO _IOWR('T', 5, int)
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#define SNDCTL_TMR_SOURCE _IOWR('T', 6, int)
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# define TMR_INTERNAL 0x00000001
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# define TMR_EXTERNAL 0x00000002
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# define TMR_MODE_MIDI 0x00000010
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# define TMR_MODE_FSK 0x00000020
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# define TMR_MODE_CLS 0x00000040
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# define TMR_MODE_SMPTE 0x00000080
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#define SNDCTL_TMR_METRONOME _IOW ('T', 7, int)
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#define SNDCTL_TMR_SELECT _IOW ('T', 8, int)
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/*
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* Endian aware patch key generation algorithm.
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*/
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#if defined(_AIX) || defined(AIX)
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# define _PATCHKEY(id) (0xfd00|id)
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#else
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# define _PATCHKEY(id) ((id<<8)|0xfd)
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#endif
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/*
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* Sample loading mechanism for internal synthesizers (/dev/sequencer)
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* The following patch_info structure has been designed to support
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* Gravis UltraSound. It tries to be universal format for uploading
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* sample based patches but is probably too limited.
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*/
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struct patch_info {
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/* u_short key; Use GUS_PATCH here */
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short key; /* Use GUS_PATCH here */
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#define GUS_PATCH _PATCHKEY(0x04)
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#define OBSOLETE_GUS_PATCH _PATCHKEY(0x02)
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short device_no; /* Synthesizer number */
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short instr_no; /* Midi pgm# */
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u_long mode;
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/*
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* The least significant byte has the same format than the GUS .PAT
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* files
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*/
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#define WAVE_16_BITS 0x01 /* bit 0 = 8 or 16 bit wave data. */
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#define WAVE_UNSIGNED 0x02 /* bit 1 = Signed - Unsigned data. */
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#define WAVE_LOOPING 0x04 /* bit 2 = looping enabled-1. */
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#define WAVE_BIDIR_LOOP 0x08 /* bit 3 = Set is bidirectional looping. */
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#define WAVE_LOOP_BACK 0x10 /* bit 4 = Set is looping backward. */
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#define WAVE_SUSTAIN_ON 0x20 /* bit 5 = Turn sustaining on. (Env. pts. 3)*/
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#define WAVE_ENVELOPES 0x40 /* bit 6 = Enable envelopes - 1 */
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/* (use the env_rate/env_offs fields). */
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/* Linux specific bits */
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#define WAVE_VIBRATO 0x00010000 /* The vibrato info is valid */
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#define WAVE_TREMOLO 0x00020000 /* The tremolo info is valid */
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#define WAVE_SCALE 0x00040000 /* The scaling info is valid */
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/* Other bits must be zeroed */
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long len; /* Size of the wave data in bytes */
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long loop_start, loop_end; /* Byte offsets from the beginning */
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/*
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* The base_freq and base_note fields are used when computing the
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* playback speed for a note. The base_note defines the tone frequency
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* which is heard if the sample is played using the base_freq as the
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* playback speed.
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*
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* The low_note and high_note fields define the minimum and maximum note
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* frequencies for which this sample is valid. It is possible to define
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* more than one samples for a instrument number at the same time. The
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* low_note and high_note fields are used to select the most suitable one.
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*
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* The fields base_note, high_note and low_note should contain
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* the note frequency multiplied by 1000. For example value for the
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* middle A is 440*1000.
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*/
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u_int base_freq;
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u_long base_note;
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u_long high_note;
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u_long low_note;
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int panning; /* -128=left, 127=right */
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int detuning;
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/* New fields introduced in version 1.99.5 */
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/* Envelope. Enabled by mode bit WAVE_ENVELOPES */
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u_char env_rate[ 6 ]; /* GUS HW ramping rate */
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u_char env_offset[ 6 ]; /* 255 == 100% */
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/*
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* The tremolo, vibrato and scale info are not supported yet.
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* Enable by setting the mode bits WAVE_TREMOLO, WAVE_VIBRATO or
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* WAVE_SCALE
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*/
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u_char tremolo_sweep;
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u_char tremolo_rate;
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u_char tremolo_depth;
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u_char vibrato_sweep;
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u_char vibrato_rate;
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u_char vibrato_depth;
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int scale_frequency;
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u_int scale_factor; /* from 0 to 2048 or 0 to 2 */
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int volume;
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int spare[4];
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char data[1]; /* The waveform data starts here */
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};
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struct sysex_info {
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short key; /* Use GUS_PATCH here */
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#define SYSEX_PATCH _PATCHKEY(0x05)
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#define MAUI_PATCH _PATCHKEY(0x06)
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short device_no; /* Synthesizer number */
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long len; /* Size of the sysex data in bytes */
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u_char data[1]; /* Sysex data starts here */
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};
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/*
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* Patch management interface (/dev/sequencer, /dev/patmgr#)
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* Don't use these calls if you want to maintain compatibility with
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* the future versions of the driver.
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*/
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#define PS_NO_PATCHES 0 /* No patch support on device */
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#define PS_MGR_NOT_OK 1 /* Plain patch support (no mgr) */
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#define PS_MGR_OK 2 /* Patch manager supported */
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#define PS_MANAGED 3 /* Patch manager running */
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#define SNDCTL_PMGR_IFACE _IOWR('P', 1, struct patmgr_info)
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/*
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* The patmgr_info is a fixed size structure which is used for two
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* different purposes. The intended use is for communication between
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* the application using /dev/sequencer and the patch manager daemon
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* associated with a synthesizer device (ioctl(SNDCTL_PMGR_ACCESS)).
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*
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* This structure is also used with ioctl(SNDCTL_PGMR_IFACE) which allows
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* a patch manager daemon to read and write device parameters. This
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* ioctl available through /dev/sequencer also. Avoid using it since it's
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* extremely hardware dependent. In addition access trough /dev/sequencer
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* may confuse the patch manager daemon.
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*/
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struct patmgr_info { /* Note! size must be < 4k since kmalloc() is used */
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u_long key; /* Don't worry. Reserved for communication
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between the patch manager and the driver. */
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#define PM_K_EVENT 1 /* Event from the /dev/sequencer driver */
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#define PM_K_COMMAND 2 /* Request from a application */
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#define PM_K_RESPONSE 3 /* From patmgr to application */
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#define PM_ERROR 4 /* Error returned by the patmgr */
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int device;
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int command;
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/*
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* Commands 0x000 to 0xfff reserved for patch manager programs
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*/
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#define PM_GET_DEVTYPE 1 /* Returns type of the patch mgr interface of dev */
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#define PMTYPE_FM2 1 /* 2 OP fm */
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#define PMTYPE_FM4 2 /* Mixed 4 or 2 op FM (OPL-3) */
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#define PMTYPE_WAVE 3 /* Wave table synthesizer (GUS) */
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#define PM_GET_NRPGM 2 /* Returns max # of midi programs in parm1 */
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#define PM_GET_PGMMAP 3 /* Returns map of loaded midi programs in data8 */
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#define PM_GET_PGM_PATCHES 4 /* Return list of patches of a program (parm1) */
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#define PM_GET_PATCH 5 /* Return patch header of patch parm1 */
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#define PM_SET_PATCH 6 /* Set patch header of patch parm1 */
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#define PM_READ_PATCH 7 /* Read patch (wave) data */
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#define PM_WRITE_PATCH 8 /* Write patch (wave) data */
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/*
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* Commands 0x1000 to 0xffff are for communication between the patch manager
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* and the client
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*/
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#define _PM_LOAD_PATCH 0x100
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/*
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* Commands above 0xffff reserved for device specific use
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*/
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long parm1;
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long parm2;
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long parm3;
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union {
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u_char data8[4000];
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u_short data16[2000];
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u_long data32[1000];
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struct patch_info patch;
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} data;
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};
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/*
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* When a patch manager daemon is present, it will be informed by the
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* driver when something important happens. For example when the
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* /dev/sequencer is opened or closed. A record with key == PM_K_EVENT is
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* returned. The command field contains the event type:
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*/
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#define PM_E_OPENED 1 /* /dev/sequencer opened */
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#define PM_E_CLOSED 2 /* /dev/sequencer closed */
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#define PM_E_PATCH_RESET 3 /* SNDCTL_RESETSAMPLES called */
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#define PM_E_PATCH_LOADED 4 /* A patch has been loaded by appl */
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/*
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* /dev/sequencer input events.
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*
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* The data written to the /dev/sequencer is a stream of events. Events
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* are records of 4 or 8 bytes. The first byte defines the size.
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* Any number of events can be written with a write call. There
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* is a set of macros for sending these events. Use these macros if you
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* want to maximize portability of your program.
|
|
*
|
|
* Events SEQ_WAIT, SEQ_MIDIPUTC and SEQ_ECHO. Are also input events.
|
|
* (All input events are currently 4 bytes long. Be prepared to support
|
|
* 8 byte events also. If you receive any event having first byte >= 128,
|
|
* it's a 8 byte event.
|
|
*
|
|
* The events are documented at the end of this file.
|
|
*
|
|
* Normal events (4 bytes)
|
|
* There is also a 8 byte version of most of the 4 byte events. The
|
|
* 8 byte one is recommended.
|
|
*/
|
|
#define SEQ_NOTEOFF 0
|
|
#define SEQ_FMNOTEOFF SEQ_NOTEOFF /* Just old name */
|
|
#define SEQ_NOTEON 1
|
|
#define SEQ_FMNOTEON SEQ_NOTEON
|
|
#define SEQ_WAIT TMR_WAIT_ABS
|
|
#define SEQ_PGMCHANGE 3
|
|
#define SEQ_FMPGMCHANGE SEQ_PGMCHANGE
|
|
#define SEQ_SYNCTIMER TMR_START
|
|
#define SEQ_MIDIPUTC 5
|
|
#define SEQ_DRUMON 6 /*** OBSOLETE ***/
|
|
#define SEQ_DRUMOFF 7 /*** OBSOLETE ***/
|
|
#define SEQ_ECHO TMR_ECHO /* For synching programs with output */
|
|
#define SEQ_AFTERTOUCH 9
|
|
#define SEQ_CONTROLLER 10
|
|
|
|
/*
|
|
* Midi controller numbers
|
|
*
|
|
* Controllers 0 to 31 (0x00 to 0x1f) and 32 to 63 (0x20 to 0x3f)
|
|
* are continuous controllers.
|
|
* In the MIDI 1.0 these controllers are sent using two messages.
|
|
* Controller numbers 0 to 31 are used to send the MSB and the
|
|
* controller numbers 32 to 63 are for the LSB. Note that just 7 bits
|
|
* are used in MIDI bytes.
|
|
*/
|
|
|
|
#define CTL_BANK_SELECT 0x00
|
|
#define CTL_MODWHEEL 0x01
|
|
#define CTL_BREATH 0x02
|
|
/* undefined 0x03 */
|
|
#define CTL_FOOT 0x04
|
|
#define CTL_PORTAMENTO_TIME 0x05
|
|
#define CTL_DATA_ENTRY 0x06
|
|
#define CTL_MAIN_VOLUME 0x07
|
|
#define CTL_BALANCE 0x08
|
|
/* undefined 0x09 */
|
|
#define CTL_PAN 0x0a
|
|
#define CTL_EXPRESSION 0x0b
|
|
/* undefined 0x0c - 0x0f */
|
|
#define CTL_GENERAL_PURPOSE1 0x10
|
|
#define CTL_GENERAL_PURPOSE2 0x11
|
|
#define CTL_GENERAL_PURPOSE3 0x12
|
|
#define CTL_GENERAL_PURPOSE4 0x13
|
|
/* undefined 0x14 - 0x1f */
|
|
|
|
/* undefined 0x20 */
|
|
|
|
/*
|
|
* The controller numbers 0x21 to 0x3f are reserved for the
|
|
* least significant bytes of the controllers 0x00 to 0x1f.
|
|
* These controllers are not recognised by the driver.
|
|
*
|
|
* Controllers 64 to 69 (0x40 to 0x45) are on/off switches.
|
|
* 0=OFF and 127=ON (intermediate values are possible)
|
|
*/
|
|
#define CTL_DAMPER_PEDAL 0x40
|
|
#define CTL_SUSTAIN CTL_DAMPER_PEDAL /* Alias */
|
|
#define CTL_HOLD CTL_DAMPER_PEDAL /* Alias */
|
|
#define CTL_PORTAMENTO 0x41
|
|
#define CTL_SOSTENUTO 0x42
|
|
#define CTL_SOFT_PEDAL 0x43
|
|
/* undefined 0x44 */
|
|
#define CTL_HOLD2 0x45
|
|
/* undefined 0x46 - 0x4f */
|
|
|
|
#define CTL_GENERAL_PURPOSE5 0x50
|
|
#define CTL_GENERAL_PURPOSE6 0x51
|
|
#define CTL_GENERAL_PURPOSE7 0x52
|
|
#define CTL_GENERAL_PURPOSE8 0x53
|
|
/* undefined 0x54 - 0x5a */
|
|
#define CTL_EXT_EFF_DEPTH 0x5b
|
|
#define CTL_TREMOLO_DEPTH 0x5c
|
|
#define CTL_CHORUS_DEPTH 0x5d
|
|
#define CTL_DETUNE_DEPTH 0x5e
|
|
#define CTL_CELESTE_DEPTH CTL_DETUNE_DEPTH /* Alias for the above one */
|
|
#define CTL_PHASER_DEPTH 0x5f
|
|
#define CTL_DATA_INCREMENT 0x60
|
|
#define CTL_DATA_DECREMENT 0x61
|
|
#define CTL_NONREG_PARM_NUM_LSB 0x62
|
|
#define CTL_NONREG_PARM_NUM_MSB 0x63
|
|
#define CTL_REGIST_PARM_NUM_LSB 0x64
|
|
#define CTL_REGIST_PARM_NUM_MSB 0x65
|
|
/* undefined 0x66 - 0x78 */
|
|
/* reserved 0x79 - 0x7f */
|
|
|
|
/* Pseudo controllers (not midi compatible) */
|
|
#define CTRL_PITCH_BENDER 255
|
|
#define CTRL_PITCH_BENDER_RANGE 254
|
|
#define CTRL_EXPRESSION 253 /* Obsolete */
|
|
#define CTRL_MAIN_VOLUME 252 /* Obsolete */
|
|
|
|
#define SEQ_BALANCE 11
|
|
#define SEQ_VOLMODE 12
|
|
|
|
/*
|
|
* Volume mode decides how volumes are used
|
|
*/
|
|
|
|
#define VOL_METHOD_ADAGIO 1
|
|
#define VOL_METHOD_LINEAR 2
|
|
|
|
/*
|
|
* Note! SEQ_WAIT, SEQ_MIDIPUTC and SEQ_ECHO are used also as
|
|
* input events.
|
|
*/
|
|
|
|
/*
|
|
* Event codes 0xf0 to 0xfc are reserved for future extensions.
|
|
*/
|
|
|
|
#define SEQ_FULLSIZE 0xfd /* Long events */
|
|
/*
|
|
* SEQ_FULLSIZE events are used for loading patches/samples to the
|
|
* synthesizer devices. These events are passed directly to the driver
|
|
* of the associated synthesizer device. There is no limit to the size
|
|
* of the extended events. These events are not queued but executed
|
|
* immediately when the write() is called (execution can take several
|
|
* seconds of time).
|
|
*
|
|
* When a SEQ_FULLSIZE message is written to the device, it must
|
|
* be written using exactly one write() call. Other events cannot
|
|
* be mixed to the same write.
|
|
*
|
|
* For FM synths (YM3812/OPL3) use struct sbi_instrument and write
|
|
* it to the /dev/sequencer. Don't write other data together with
|
|
* the instrument structure Set the key field of the structure to
|
|
* FM_PATCH. The device field is used to route the patch to the
|
|
* corresponding device.
|
|
*
|
|
* For Gravis UltraSound use struct patch_info. Initialize the key field
|
|
* to GUS_PATCH.
|
|
*/
|
|
#define SEQ_PRIVATE 0xfe /* Low level HW dependent events (8 bytes) */
|
|
#define SEQ_EXTENDED 0xff /* Extended events (8 bytes) OBSOLETE */
|
|
|
|
/*
|
|
* Record for FM patches
|
|
*/
|
|
|
|
typedef u_char sbi_instr_data[32];
|
|
|
|
struct sbi_instrument {
|
|
u_short key; /* FM_PATCH or OPL3_PATCH */
|
|
#define FM_PATCH _PATCHKEY(0x01)
|
|
#define OPL3_PATCH _PATCHKEY(0x03)
|
|
short device; /* Synth# (0-4) */
|
|
int channel; /* Program# to be initialized */
|
|
sbi_instr_data operators; /* Reg. settings for operator cells
|
|
* (.SBI format) */
|
|
};
|
|
|
|
struct synth_info { /* Read only */
|
|
char name[30];
|
|
int device; /* 0-N. INITIALIZE BEFORE CALLING */
|
|
int synth_type;
|
|
#define SYNTH_TYPE_FM 0
|
|
#define SYNTH_TYPE_SAMPLE 1
|
|
#define SYNTH_TYPE_MIDI 2 /* Midi interface */
|
|
|
|
int synth_subtype;
|
|
#define FM_TYPE_ADLIB 0x00
|
|
#define FM_TYPE_OPL3 0x01
|
|
|
|
#define SAMPLE_TYPE_BASIC 0x10
|
|
#define SAMPLE_TYPE_GUS SAMPLE_TYPE_BASIC
|
|
|
|
int perc_mode; /* No longer supported */
|
|
int nr_voices;
|
|
int nr_drums; /* Obsolete field */
|
|
int instr_bank_size;
|
|
u_long capabilities;
|
|
#define SYNTH_CAP_PERCMODE 0x00000001 /* No longer used */
|
|
#define SYNTH_CAP_OPL3 0x00000002 /* Set if OPL3 supported */
|
|
#define SYNTH_CAP_INPUT 0x00000004 /* Input (MIDI) device */
|
|
int dummies[19]; /* Reserve space */
|
|
};
|
|
|
|
struct sound_timer_info {
|
|
char name[32];
|
|
int caps;
|
|
};
|
|
|
|
#define MIDI_CAP_MPU401 1 /* MPU-401 intelligent mode */
|
|
|
|
struct midi_info {
|
|
char name[30];
|
|
int device; /* 0-N. INITIALIZE BEFORE CALLING */
|
|
u_long capabilities; /* To be defined later */
|
|
int dev_type;
|
|
int dummies[18]; /* Reserve space */
|
|
};
|
|
|
|
/*
|
|
* ioctl commands for the /dev/midi##
|
|
*/
|
|
typedef struct {
|
|
u_char cmd;
|
|
char nr_args, nr_returns;
|
|
u_char data[30];
|
|
} mpu_command_rec;
|
|
|
|
#define SNDCTL_MIDI_PRETIME _IOWR('m', 0, int)
|
|
#define SNDCTL_MIDI_MPUMODE _IOWR('m', 1, int)
|
|
#define SNDCTL_MIDI_MPUCMD _IOWR('m', 2, mpu_command_rec)
|
|
|
|
/*
|
|
* IOCTL commands for /dev/dsp and /dev/audio
|
|
*/
|
|
|
|
#define SNDCTL_DSP_RESET _IO ('P', 0)
|
|
#define SNDCTL_DSP_SYNC _IO ('P', 1)
|
|
#define SNDCTL_DSP_SPEED _IOWR('P', 2, int)
|
|
#define SNDCTL_DSP_STEREO _IOWR('P', 3, int)
|
|
#define SNDCTL_DSP_GETBLKSIZE _IOR('P', 4, int)
|
|
#define SNDCTL_DSP_SETBLKSIZE _IOW('P', 4, int)
|
|
#define SNDCTL_DSP_SETFMT _IOWR('P',5, int) /* Selects ONE fmt*/
|
|
|
|
/*
|
|
* SOUND_PCM_WRITE_CHANNELS is not that different
|
|
* from SNDCTL_DSP_STEREO
|
|
*/
|
|
#define SOUND_PCM_WRITE_CHANNELS _IOWR('P', 6, int)
|
|
#define SOUND_PCM_WRITE_FILTER _IOWR('P', 7, int)
|
|
#define SNDCTL_DSP_POST _IO ('P', 8)
|
|
|
|
/*
|
|
* SNDCTL_DSP_SETBLKSIZE and the following two calls mostly do
|
|
* the same thing, i.e. set the block size used in DMA transfers.
|
|
*/
|
|
#define SNDCTL_DSP_SUBDIVIDE _IOWR('P', 9, int)
|
|
#define SNDCTL_DSP_SETFRAGMENT _IOWR('P',10, int)
|
|
|
|
|
|
#define SNDCTL_DSP_GETFMTS _IOR ('P',11, int) /* Returns a mask */
|
|
/*
|
|
* Buffer status queries.
|
|
*/
|
|
typedef struct audio_buf_info {
|
|
int fragments; /* # of avail. frags (partly used ones not counted) */
|
|
int fragstotal; /* Total # of fragments allocated */
|
|
int fragsize; /* Size of a fragment in bytes */
|
|
|
|
int bytes; /* Avail. space in bytes (includes partly used fragments) */
|
|
/* Note! 'bytes' could be more than fragments*fragsize */
|
|
} audio_buf_info;
|
|
|
|
#define SNDCTL_DSP_GETOSPACE _IOR ('P',12, audio_buf_info)
|
|
#define SNDCTL_DSP_GETISPACE _IOR ('P',13, audio_buf_info)
|
|
|
|
/*
|
|
* SNDCTL_DSP_NONBLOCK is the same (but less powerful, since the
|
|
* action cannot be undone) of FIONBIO. The same can be achieved
|
|
* by opening the device with O_NDELAY
|
|
*/
|
|
#define SNDCTL_DSP_NONBLOCK _IO ('P',14)
|
|
|
|
#define SNDCTL_DSP_GETCAPS _IOR ('P',15, int)
|
|
#define DSP_CAP_REVISION 0x000000ff /* revision level (0 to 255) */
|
|
#define DSP_CAP_DUPLEX 0x00000100 /* Full duplex record/playback */
|
|
#define DSP_CAP_REALTIME 0x00000200 /* Real time capability */
|
|
#define DSP_CAP_BATCH 0x00000400
|
|
/*
|
|
* Device has some kind of internal buffers which may
|
|
* cause some delays and decrease precision of timing
|
|
*/
|
|
#define DSP_CAP_COPROC 0x00000800
|
|
/* Has a coprocessor, sometimes it's a DSP but usually not */
|
|
#define DSP_CAP_TRIGGER 0x00001000 /* Supports SETTRIGGER */
|
|
|
|
/*
|
|
* What do these function do ?
|
|
*/
|
|
#define SNDCTL_DSP_GETTRIGGER _IOR ('P',16, int)
|
|
#define SNDCTL_DSP_SETTRIGGER _IOW ('P',16, int)
|
|
#define PCM_ENABLE_INPUT 0x00000001
|
|
#define PCM_ENABLE_OUTPUT 0x00000002
|
|
|
|
typedef struct count_info {
|
|
int bytes; /* Total # of bytes processed */
|
|
int blocks; /* # of fragment transitions since last time */
|
|
int ptr; /* Current DMA pointer value */
|
|
} count_info;
|
|
|
|
/*
|
|
* GETIPTR and GETISPACE are not that different... same for out.
|
|
*/
|
|
#define SNDCTL_DSP_GETIPTR _IOR ('P',17, count_info)
|
|
#define SNDCTL_DSP_GETOPTR _IOR ('P',18, count_info)
|
|
|
|
typedef struct buffmem_desc {
|
|
caddr_t buffer;
|
|
int size;
|
|
} buffmem_desc;
|
|
|
|
#define SNDCTL_DSP_MAPINBUF _IOR ('P', 19, buffmem_desc)
|
|
#define SNDCTL_DSP_MAPOUTBUF _IOR ('P', 20, buffmem_desc)
|
|
#define SNDCTL_DSP_SETSYNCRO _IO ('P', 21)
|
|
|
|
/*
|
|
* I guess these are the readonly version of the same
|
|
* functions that exist above as SNDCTL_DSP_...
|
|
*/
|
|
#define SOUND_PCM_READ_RATE _IOR ('P', 2, int)
|
|
#define SOUND_PCM_READ_CHANNELS _IOR ('P', 6, int)
|
|
#define SOUND_PCM_READ_BITS _IOR ('P', 5, int)
|
|
#define SOUND_PCM_READ_FILTER _IOR ('P', 7, int)
|
|
|
|
/*
|
|
* ioctl calls to be used in communication with coprocessors and
|
|
* DSP chips.
|
|
*/
|
|
|
|
typedef struct copr_buffer {
|
|
int command; /* Set to 0 if not used */
|
|
int flags;
|
|
#define CPF_NONE 0x0000
|
|
#define CPF_FIRST 0x0001 /* First block */
|
|
#define CPF_LAST 0x0002 /* Last block */
|
|
int len;
|
|
int offs; /* If required by the device (0 if not used) */
|
|
|
|
u_char data[4000]; /* NOTE! 4000 is not 4k */
|
|
} copr_buffer;
|
|
|
|
typedef struct copr_debug_buf {
|
|
int command; /* Used internally. Set to 0 */
|
|
int parm1;
|
|
int parm2;
|
|
int flags;
|
|
int len; /* Length of data in bytes */
|
|
} copr_debug_buf;
|
|
|
|
typedef struct copr_msg {
|
|
int len;
|
|
u_char data[4000];
|
|
} copr_msg;
|
|
|
|
#define SNDCTL_COPR_RESET _IO ('C', 0)
|
|
#define SNDCTL_COPR_LOAD _IOWR('C', 1, copr_buffer)
|
|
#define SNDCTL_COPR_RDATA _IOWR('C', 2, copr_debug_buf)
|
|
#define SNDCTL_COPR_RCODE _IOWR('C', 3, copr_debug_buf)
|
|
#define SNDCTL_COPR_WDATA _IOW ('C', 4, copr_debug_buf)
|
|
#define SNDCTL_COPR_WCODE _IOW ('C', 5, copr_debug_buf)
|
|
#define SNDCTL_COPR_RUN _IOWR('C', 6, copr_debug_buf)
|
|
#define SNDCTL_COPR_HALT _IOWR('C', 7, copr_debug_buf)
|
|
#define SNDCTL_COPR_SENDMSG _IOW ('C', 8, copr_msg)
|
|
#define SNDCTL_COPR_RCVMSG _IOR ('C', 9, copr_msg)
|
|
|
|
/*
|
|
* IOCTL commands for /dev/mixer
|
|
*/
|
|
|
|
/*
|
|
* Mixer devices
|
|
*
|
|
* There can be up to 20 different analog mixer channels. The
|
|
* SOUND_MIXER_NRDEVICES gives the currently supported maximum.
|
|
* The SOUND_MIXER_READ_DEVMASK returns a bitmask which tells
|
|
* the devices supported by the particular mixer.
|
|
*/
|
|
|
|
#define SOUND_MIXER_NRDEVICES 25
|
|
#define SOUND_MIXER_VOLUME 0
|
|
#define SOUND_MIXER_BASS 1
|
|
#define SOUND_MIXER_TREBLE 2
|
|
#define SOUND_MIXER_SYNTH 3
|
|
#define SOUND_MIXER_PCM 4
|
|
#define SOUND_MIXER_SPEAKER 5
|
|
#define SOUND_MIXER_LINE 6
|
|
#define SOUND_MIXER_MIC 7
|
|
#define SOUND_MIXER_CD 8
|
|
#define SOUND_MIXER_IMIX 9 /* Recording monitor */
|
|
#define SOUND_MIXER_ALTPCM 10
|
|
#define SOUND_MIXER_RECLEV 11 /* Recording level */
|
|
#define SOUND_MIXER_IGAIN 12 /* Input gain */
|
|
#define SOUND_MIXER_OGAIN 13 /* Output gain */
|
|
/*
|
|
* The AD1848 codec and compatibles have three line level inputs
|
|
* (line, aux1 and aux2). Since each card manufacturer have assigned
|
|
* different meanings to these inputs, it's inpractical to assign
|
|
* specific meanings (line, cd, synth etc.) to them.
|
|
*/
|
|
#define SOUND_MIXER_LINE1 14 /* Input source 1 (aux1) */
|
|
#define SOUND_MIXER_LINE2 15 /* Input source 2 (aux2) */
|
|
#define SOUND_MIXER_LINE3 16 /* Input source 3 (line) */
|
|
#define SOUND_MIXER_DIGITAL1 17 /* Digital (input) 1 */
|
|
#define SOUND_MIXER_DIGITAL2 18 /* Digital (input) 2 */
|
|
#define SOUND_MIXER_DIGITAL3 19 /* Digital (input) 3 */
|
|
#define SOUND_MIXER_PHONEIN 20 /* Phone input */
|
|
#define SOUND_MIXER_PHONEOUT 21 /* Phone output */
|
|
#define SOUND_MIXER_VIDEO 22 /* Video/TV (audio) in */
|
|
#define SOUND_MIXER_RADIO 23 /* Radio in */
|
|
#define SOUND_MIXER_MONITOR 24 /* Monitor (usually mic) volume */
|
|
|
|
|
|
/*
|
|
* Some on/off settings (SOUND_SPECIAL_MIN - SOUND_SPECIAL_MAX)
|
|
* Not counted to SOUND_MIXER_NRDEVICES, but use the same number space
|
|
*/
|
|
#define SOUND_ONOFF_MIN 28
|
|
#define SOUND_ONOFF_MAX 30
|
|
#define SOUND_MIXER_MUTE 28 /* 0 or 1 */
|
|
#define SOUND_MIXER_ENHANCE 29 /* Enhanced stereo (0, 40, 60 or 80) */
|
|
#define SOUND_MIXER_LOUD 30 /* 0 or 1 */
|
|
|
|
/* Note! Number 31 cannot be used since the sign bit is reserved */
|
|
#define SOUND_MIXER_NONE 31
|
|
|
|
#define SOUND_DEVICE_LABELS { \
|
|
"Vol ", "Bass ", "Trebl", "Synth", "Pcm ", "Spkr ", "Line ", \
|
|
"Mic ", "CD ", "Mix ", "Pcm2 ", "Rec ", "IGain", "OGain", \
|
|
"Line1", "Line2", "Line3", "Digital1", "Digital2", "Digital3", \
|
|
"PhoneIn", "PhoneOut", "Video", "Radio", "Monitor"}
|
|
|
|
#define SOUND_DEVICE_NAMES { \
|
|
"vol", "bass", "treble", "synth", "pcm", "speaker", "line", \
|
|
"mic", "cd", "mix", "pcm2", "rec", "igain", "ogain", \
|
|
"line1", "line2", "line3", "dig1", "dig2", "dig3", \
|
|
"phin", "phout", "video", "radio", "monitor"}
|
|
|
|
/* Device bitmask identifiers */
|
|
|
|
#define SOUND_MIXER_RECSRC 0xff /* 1 bit per recording source */
|
|
#define SOUND_MIXER_DEVMASK 0xfe /* 1 bit per supported device */
|
|
#define SOUND_MIXER_RECMASK 0xfd /* 1 bit per supp. recording source */
|
|
#define SOUND_MIXER_CAPS 0xfc
|
|
#define SOUND_CAP_EXCL_INPUT 0x00000001 /* Only 1 rec. src at a time */
|
|
#define SOUND_MIXER_STEREODEVS 0xfb /* Mixer channels supporting stereo */
|
|
|
|
/* Device mask bits */
|
|
|
|
#define SOUND_MASK_VOLUME (1 << SOUND_MIXER_VOLUME)
|
|
#define SOUND_MASK_BASS (1 << SOUND_MIXER_BASS)
|
|
#define SOUND_MASK_TREBLE (1 << SOUND_MIXER_TREBLE)
|
|
#define SOUND_MASK_SYNTH (1 << SOUND_MIXER_SYNTH)
|
|
#define SOUND_MASK_PCM (1 << SOUND_MIXER_PCM)
|
|
#define SOUND_MASK_SPEAKER (1 << SOUND_MIXER_SPEAKER)
|
|
#define SOUND_MASK_LINE (1 << SOUND_MIXER_LINE)
|
|
#define SOUND_MASK_MIC (1 << SOUND_MIXER_MIC)
|
|
#define SOUND_MASK_CD (1 << SOUND_MIXER_CD)
|
|
#define SOUND_MASK_IMIX (1 << SOUND_MIXER_IMIX)
|
|
#define SOUND_MASK_ALTPCM (1 << SOUND_MIXER_ALTPCM)
|
|
#define SOUND_MASK_RECLEV (1 << SOUND_MIXER_RECLEV)
|
|
#define SOUND_MASK_IGAIN (1 << SOUND_MIXER_IGAIN)
|
|
#define SOUND_MASK_OGAIN (1 << SOUND_MIXER_OGAIN)
|
|
#define SOUND_MASK_LINE1 (1 << SOUND_MIXER_LINE1)
|
|
#define SOUND_MASK_LINE2 (1 << SOUND_MIXER_LINE2)
|
|
#define SOUND_MASK_LINE3 (1 << SOUND_MIXER_LINE3)
|
|
#define SOUND_MASK_DIGITAL1 (1 << SOUND_MIXER_DIGITAL1)
|
|
#define SOUND_MASK_DIGITAL2 (1 << SOUND_MIXER_DIGITAL2)
|
|
#define SOUND_MASK_DIGITAL3 (1 << SOUND_MIXER_DIGITAL3)
|
|
#define SOUND_MASK_PHONEIN (1 << SOUND_MIXER_PHONEIN)
|
|
#define SOUND_MASK_PHONEOUT (1 << SOUND_MIXER_PHONEOUT)
|
|
#define SOUND_MASK_RADIO (1 << SOUND_MIXER_RADIO)
|
|
#define SOUND_MASK_VIDEO (1 << SOUND_MIXER_VIDEO)
|
|
#define SOUND_MASK_MONITOR (1 << SOUND_MIXER_MONITOR)
|
|
|
|
/* Obsolete macros */
|
|
#define SOUND_MASK_MUTE (1 << SOUND_MIXER_MUTE)
|
|
#define SOUND_MASK_ENHANCE (1 << SOUND_MIXER_ENHANCE)
|
|
#define SOUND_MASK_LOUD (1 << SOUND_MIXER_LOUD)
|
|
|
|
#define MIXER_READ(dev) _IOR('M', dev, int)
|
|
#define SOUND_MIXER_READ_VOLUME MIXER_READ(SOUND_MIXER_VOLUME)
|
|
#define SOUND_MIXER_READ_BASS MIXER_READ(SOUND_MIXER_BASS)
|
|
#define SOUND_MIXER_READ_TREBLE MIXER_READ(SOUND_MIXER_TREBLE)
|
|
#define SOUND_MIXER_READ_SYNTH MIXER_READ(SOUND_MIXER_SYNTH)
|
|
#define SOUND_MIXER_READ_PCM MIXER_READ(SOUND_MIXER_PCM)
|
|
#define SOUND_MIXER_READ_SPEAKER MIXER_READ(SOUND_MIXER_SPEAKER)
|
|
#define SOUND_MIXER_READ_LINE MIXER_READ(SOUND_MIXER_LINE)
|
|
#define SOUND_MIXER_READ_MIC MIXER_READ(SOUND_MIXER_MIC)
|
|
#define SOUND_MIXER_READ_CD MIXER_READ(SOUND_MIXER_CD)
|
|
#define SOUND_MIXER_READ_IMIX MIXER_READ(SOUND_MIXER_IMIX)
|
|
#define SOUND_MIXER_READ_ALTPCM MIXER_READ(SOUND_MIXER_ALTPCM)
|
|
#define SOUND_MIXER_READ_RECLEV MIXER_READ(SOUND_MIXER_RECLEV)
|
|
#define SOUND_MIXER_READ_IGAIN MIXER_READ(SOUND_MIXER_IGAIN)
|
|
#define SOUND_MIXER_READ_OGAIN MIXER_READ(SOUND_MIXER_OGAIN)
|
|
#define SOUND_MIXER_READ_LINE1 MIXER_READ(SOUND_MIXER_LINE1)
|
|
#define SOUND_MIXER_READ_LINE2 MIXER_READ(SOUND_MIXER_LINE2)
|
|
#define SOUND_MIXER_READ_LINE3 MIXER_READ(SOUND_MIXER_LINE3)
|
|
|
|
/* Obsolete macros */
|
|
#define SOUND_MIXER_READ_MUTE MIXER_READ(SOUND_MIXER_MUTE)
|
|
#define SOUND_MIXER_READ_ENHANCE MIXER_READ(SOUND_MIXER_ENHANCE)
|
|
#define SOUND_MIXER_READ_LOUD MIXER_READ(SOUND_MIXER_LOUD)
|
|
|
|
#define SOUND_MIXER_READ_RECSRC MIXER_READ(SOUND_MIXER_RECSRC)
|
|
#define SOUND_MIXER_READ_DEVMASK MIXER_READ(SOUND_MIXER_DEVMASK)
|
|
#define SOUND_MIXER_READ_RECMASK MIXER_READ(SOUND_MIXER_RECMASK)
|
|
#define SOUND_MIXER_READ_STEREODEVS MIXER_READ(SOUND_MIXER_STEREODEVS)
|
|
#define SOUND_MIXER_READ_CAPS MIXER_READ(SOUND_MIXER_CAPS)
|
|
|
|
#define MIXER_WRITE(dev) _IOWR('M', dev, int)
|
|
#define SOUND_MIXER_WRITE_VOLUME MIXER_WRITE(SOUND_MIXER_VOLUME)
|
|
#define SOUND_MIXER_WRITE_BASS MIXER_WRITE(SOUND_MIXER_BASS)
|
|
#define SOUND_MIXER_WRITE_TREBLE MIXER_WRITE(SOUND_MIXER_TREBLE)
|
|
#define SOUND_MIXER_WRITE_SYNTH MIXER_WRITE(SOUND_MIXER_SYNTH)
|
|
#define SOUND_MIXER_WRITE_PCM MIXER_WRITE(SOUND_MIXER_PCM)
|
|
#define SOUND_MIXER_WRITE_SPEAKER MIXER_WRITE(SOUND_MIXER_SPEAKER)
|
|
#define SOUND_MIXER_WRITE_LINE MIXER_WRITE(SOUND_MIXER_LINE)
|
|
#define SOUND_MIXER_WRITE_MIC MIXER_WRITE(SOUND_MIXER_MIC)
|
|
#define SOUND_MIXER_WRITE_CD MIXER_WRITE(SOUND_MIXER_CD)
|
|
#define SOUND_MIXER_WRITE_IMIX MIXER_WRITE(SOUND_MIXER_IMIX)
|
|
#define SOUND_MIXER_WRITE_ALTPCM MIXER_WRITE(SOUND_MIXER_ALTPCM)
|
|
#define SOUND_MIXER_WRITE_RECLEV MIXER_WRITE(SOUND_MIXER_RECLEV)
|
|
#define SOUND_MIXER_WRITE_IGAIN MIXER_WRITE(SOUND_MIXER_IGAIN)
|
|
#define SOUND_MIXER_WRITE_OGAIN MIXER_WRITE(SOUND_MIXER_OGAIN)
|
|
#define SOUND_MIXER_WRITE_LINE1 MIXER_WRITE(SOUND_MIXER_LINE1)
|
|
#define SOUND_MIXER_WRITE_LINE2 MIXER_WRITE(SOUND_MIXER_LINE2)
|
|
#define SOUND_MIXER_WRITE_LINE3 MIXER_WRITE(SOUND_MIXER_LINE3)
|
|
#define SOUND_MIXER_WRITE_MUTE MIXER_WRITE(SOUND_MIXER_MUTE)
|
|
#define SOUND_MIXER_WRITE_ENHANCE MIXER_WRITE(SOUND_MIXER_ENHANCE)
|
|
#define SOUND_MIXER_WRITE_LOUD MIXER_WRITE(SOUND_MIXER_LOUD)
|
|
|
|
#define SOUND_MIXER_WRITE_RECSRC MIXER_WRITE(SOUND_MIXER_RECSRC)
|
|
|
|
#define LEFT_CHN 0
|
|
#define RIGHT_CHN 1
|
|
|
|
/*
|
|
* Level 2 event types for /dev/sequencer
|
|
*/
|
|
|
|
/*
|
|
* The 4 most significant bits of byte 0 specify the class of
|
|
* the event:
|
|
*
|
|
* 0x8X = system level events,
|
|
* 0x9X = device/port specific events, event[1] = device/port,
|
|
* The last 4 bits give the subtype:
|
|
* 0x02 = Channel event (event[3] = chn).
|
|
* 0x01 = note event (event[4] = note).
|
|
* (0x01 is not used alone but always with bit 0x02).
|
|
* event[2] = MIDI message code (0x80=note off etc.)
|
|
*
|
|
*/
|
|
|
|
#define EV_SEQ_LOCAL 0x80
|
|
#define EV_TIMING 0x81
|
|
#define EV_CHN_COMMON 0x92
|
|
#define EV_CHN_VOICE 0x93
|
|
#define EV_SYSEX 0x94
|
|
/*
|
|
* Event types 200 to 220 are reserved for application use.
|
|
* These numbers will not be used by the driver.
|
|
*/
|
|
|
|
/*
|
|
* Events for event type EV_CHN_VOICE
|
|
*/
|
|
|
|
#define MIDI_NOTEOFF 0x80
|
|
#define MIDI_NOTEON 0x90
|
|
#define MIDI_KEY_PRESSURE 0xA0
|
|
|
|
/*
|
|
* Events for event type EV_CHN_COMMON
|
|
*/
|
|
|
|
#define MIDI_CTL_CHANGE 0xB0
|
|
#define MIDI_PGM_CHANGE 0xC0
|
|
#define MIDI_CHN_PRESSURE 0xD0
|
|
#define MIDI_PITCH_BEND 0xE0
|
|
|
|
#define MIDI_SYSTEM_PREFIX 0xF0
|
|
|
|
/*
|
|
* Timer event types
|
|
*/
|
|
#define TMR_WAIT_REL 1 /* Time relative to the prev time */
|
|
#define TMR_WAIT_ABS 2 /* Absolute time since TMR_START */
|
|
#define TMR_STOP 3
|
|
#define TMR_START 4
|
|
#define TMR_CONTINUE 5
|
|
#define TMR_TEMPO 6
|
|
#define TMR_ECHO 8
|
|
#define TMR_CLOCK 9 /* MIDI clock */
|
|
#define TMR_SPP 10 /* Song position pointer */
|
|
#define TMR_TIMESIG 11 /* Time signature */
|
|
|
|
/*
|
|
* Local event types
|
|
*/
|
|
#define LOCL_STARTAUDIO 1
|
|
|
|
#if (!defined(__KERNEL__) && !defined(KERNEL) && !defined(INKERNEL) && !defined(_KERNEL)) || defined(USE_SEQ_MACROS)
|
|
/*
|
|
* Some convenience macros to simplify programming of the
|
|
* /dev/sequencer interface
|
|
*
|
|
* These macros define the API which should be used when possible.
|
|
*/
|
|
|
|
#ifndef USE_SIMPLE_MACROS
|
|
void seqbuf_dump(void); /* This function must be provided by programs */
|
|
|
|
/* Sample seqbuf_dump() implementation:
|
|
*
|
|
* SEQ_DEFINEBUF (2048); -- Defines a buffer for 2048 bytes
|
|
*
|
|
* int seqfd; -- The file descriptor for /dev/sequencer.
|
|
*
|
|
* void
|
|
* seqbuf_dump ()
|
|
* {
|
|
* if (_seqbufptr)
|
|
* if (write (seqfd, _seqbuf, _seqbufptr) == -1)
|
|
* {
|
|
* perror ("write /dev/sequencer");
|
|
* exit (-1);
|
|
* }
|
|
* _seqbufptr = 0;
|
|
* }
|
|
*/
|
|
|
|
#define SEQ_DEFINEBUF(len) \
|
|
u_char _seqbuf[len]; int _seqbuflen = len;int _seqbufptr = 0
|
|
#define SEQ_USE_EXTBUF() \
|
|
extern u_char _seqbuf[]; \
|
|
extern int _seqbuflen;extern int _seqbufptr
|
|
#define SEQ_DECLAREBUF() SEQ_USE_EXTBUF()
|
|
#define SEQ_PM_DEFINES struct patmgr_info _pm_info
|
|
#define _SEQ_NEEDBUF(len) \
|
|
if ((_seqbufptr+(len)) > _seqbuflen) \
|
|
seqbuf_dump()
|
|
#define _SEQ_ADVBUF(len) _seqbufptr += len
|
|
#define SEQ_DUMPBUF seqbuf_dump
|
|
#else
|
|
/*
|
|
* This variation of the sequencer macros is used just to format one event
|
|
* using fixed buffer.
|
|
*
|
|
* The program using the macro library must define the following macros before
|
|
* using this library.
|
|
*
|
|
* #define _seqbuf name of the buffer (u_char[])
|
|
* #define _SEQ_ADVBUF(len) If the applic needs to know the exact
|
|
* size of the event, this macro can be used.
|
|
* Otherwise this must be defined as empty.
|
|
* #define _seqbufptr Define the name of index variable or 0 if
|
|
* not required.
|
|
*/
|
|
#define _SEQ_NEEDBUF(len) /* empty */
|
|
#endif
|
|
|
|
#define PM_LOAD_PATCH(dev, bank, pgm) \
|
|
(SEQ_DUMPBUF(), _pm_info.command = _PM_LOAD_PATCH, \
|
|
_pm_info.device=dev, _pm_info.data.data8[0]=pgm, \
|
|
_pm_info.parm1 = bank, _pm_info.parm2 = 1, \
|
|
ioctl(seqfd, SNDCTL_PMGR_ACCESS, &_pm_info))
|
|
#define PM_LOAD_PATCHES(dev, bank, pgm) \
|
|
(SEQ_DUMPBUF(), _pm_info.command = _PM_LOAD_PATCH, \
|
|
_pm_info.device=dev, bcopy( pgm, _pm_info.data.data8, 128), \
|
|
_pm_info.parm1 = bank, _pm_info.parm2 = 128, \
|
|
ioctl(seqfd, SNDCTL_PMGR_ACCESS, &_pm_info))
|
|
|
|
#define SEQ_VOLUME_MODE(dev, mode) { \
|
|
_SEQ_NEEDBUF(8);\
|
|
_seqbuf[_seqbufptr] = SEQ_EXTENDED;\
|
|
_seqbuf[_seqbufptr+1] = SEQ_VOLMODE;\
|
|
_seqbuf[_seqbufptr+2] = (dev);\
|
|
_seqbuf[_seqbufptr+3] = (mode);\
|
|
_seqbuf[_seqbufptr+4] = 0;\
|
|
_seqbuf[_seqbufptr+5] = 0;\
|
|
_seqbuf[_seqbufptr+6] = 0;\
|
|
_seqbuf[_seqbufptr+7] = 0;\
|
|
_SEQ_ADVBUF(8);}
|
|
|
|
/*
|
|
* Midi voice messages
|
|
*/
|
|
|
|
#define _CHN_VOICE(dev, event, chn, note, parm) { \
|
|
_SEQ_NEEDBUF(8);\
|
|
_seqbuf[_seqbufptr] = EV_CHN_VOICE;\
|
|
_seqbuf[_seqbufptr+1] = (dev);\
|
|
_seqbuf[_seqbufptr+2] = (event);\
|
|
_seqbuf[_seqbufptr+3] = (chn);\
|
|
_seqbuf[_seqbufptr+4] = (note);\
|
|
_seqbuf[_seqbufptr+5] = (parm);\
|
|
_seqbuf[_seqbufptr+6] = (0);\
|
|
_seqbuf[_seqbufptr+7] = 0;\
|
|
_SEQ_ADVBUF(8);}
|
|
|
|
#define SEQ_START_NOTE(dev, chn, note, vol) \
|
|
_CHN_VOICE(dev, MIDI_NOTEON, chn, note, vol)
|
|
|
|
#define SEQ_STOP_NOTE(dev, chn, note, vol) \
|
|
_CHN_VOICE(dev, MIDI_NOTEOFF, chn, note, vol)
|
|
|
|
#define SEQ_KEY_PRESSURE(dev, chn, note, pressure) \
|
|
_CHN_VOICE(dev, MIDI_KEY_PRESSURE, chn, note, pressure)
|
|
|
|
/*
|
|
* Midi channel messages
|
|
*/
|
|
|
|
#define _CHN_COMMON(dev, event, chn, p1, p2, w14) { \
|
|
_SEQ_NEEDBUF(8);\
|
|
_seqbuf[_seqbufptr] = EV_CHN_COMMON;\
|
|
_seqbuf[_seqbufptr+1] = (dev);\
|
|
_seqbuf[_seqbufptr+2] = (event);\
|
|
_seqbuf[_seqbufptr+3] = (chn);\
|
|
_seqbuf[_seqbufptr+4] = (p1);\
|
|
_seqbuf[_seqbufptr+5] = (p2);\
|
|
*(short *)&_seqbuf[_seqbufptr+6] = (w14);\
|
|
_SEQ_ADVBUF(8);}
|
|
/*
|
|
* SEQ_SYSEX permits sending of sysex messages. (It may look that it permits
|
|
* sending any MIDI bytes but it's absolutely not possible. Trying to do
|
|
* so _will_ cause problems with MPU401 intelligent mode).
|
|
*
|
|
* Sysex messages are sent in blocks of 1 to 6 bytes. Longer messages must be
|
|
* sent by calling SEQ_SYSEX() several times (there must be no other events
|
|
* between them). First sysex fragment must have 0xf0 in the first byte
|
|
* and the last byte (buf[len-1] of the last fragment must be 0xf7. No byte
|
|
* between these sysex start and end markers cannot be larger than 0x7f. Also
|
|
* lengths of each fragments (except the last one) must be 6.
|
|
*
|
|
* Breaking the above rules may work with some MIDI ports but is likely to
|
|
* cause fatal problems with some other devices (such as MPU401).
|
|
*/
|
|
#define SEQ_SYSEX(dev, buf, len) { \
|
|
int i, l=(len); if (l>6)l=6;\
|
|
_SEQ_NEEDBUF(8);\
|
|
_seqbuf[_seqbufptr] = EV_SYSEX;\
|
|
for(i=0;i<l;i++)_seqbuf[_seqbufptr+i+1] = (buf)[i];\
|
|
for(i=l;i<6;i++)_seqbuf[_seqbufptr+i+1] = 0xff;\
|
|
_SEQ_ADVBUF(8);}
|
|
|
|
#define SEQ_CHN_PRESSURE(dev, chn, pressure) \
|
|
_CHN_COMMON(dev, MIDI_CHN_PRESSURE, chn, pressure, 0, 0)
|
|
|
|
#define SEQ_SET_PATCH(dev, chn, patch) \
|
|
_CHN_COMMON(dev, MIDI_PGM_CHANGE, chn, patch, 0, 0)
|
|
|
|
#define SEQ_CONTROL(dev, chn, controller, value) \
|
|
_CHN_COMMON(dev, MIDI_CTL_CHANGE, chn, controller, 0, value)
|
|
|
|
#define SEQ_BENDER(dev, chn, value) \
|
|
_CHN_COMMON(dev, MIDI_PITCH_BEND, chn, 0, 0, value)
|
|
|
|
|
|
#define SEQ_V2_X_CONTROL(dev, voice, controller, value) { \
|
|
_SEQ_NEEDBUF(8);\
|
|
_seqbuf[_seqbufptr] = SEQ_EXTENDED;\
|
|
_seqbuf[_seqbufptr+1] = SEQ_CONTROLLER;\
|
|
_seqbuf[_seqbufptr+2] = (dev);\
|
|
_seqbuf[_seqbufptr+3] = (voice);\
|
|
_seqbuf[_seqbufptr+4] = (controller);\
|
|
*(short *)&_seqbuf[_seqbufptr+5] = (value);\
|
|
_seqbuf[_seqbufptr+7] = 0;\
|
|
_SEQ_ADVBUF(8);}
|
|
|
|
/*
|
|
* The following 5 macros are incorrectly implemented and obsolete.
|
|
* Use SEQ_BENDER and SEQ_CONTROL (with proper controller) instead.
|
|
*/
|
|
|
|
#define SEQ_PITCHBEND(dev, voice, value) \
|
|
SEQ_V2_X_CONTROL(dev, voice, CTRL_PITCH_BENDER, value)
|
|
#define SEQ_BENDER_RANGE(dev, voice, value) \
|
|
SEQ_V2_X_CONTROL(dev, voice, CTRL_PITCH_BENDER_RANGE, value)
|
|
#define SEQ_EXPRESSION(dev, voice, value) \
|
|
SEQ_CONTROL(dev, voice, CTL_EXPRESSION, value*128)
|
|
#define SEQ_MAIN_VOLUME(dev, voice, value) \
|
|
SEQ_CONTROL(dev, voice, CTL_MAIN_VOLUME, (value*16383)/100)
|
|
#define SEQ_PANNING(dev, voice, pos) \
|
|
SEQ_CONTROL(dev, voice, CTL_PAN, (pos+128) / 2)
|
|
|
|
/*
|
|
* Timing and syncronization macros
|
|
*/
|
|
|
|
#define _TIMER_EVENT(ev, parm) { \
|
|
_SEQ_NEEDBUF(8);\
|
|
_seqbuf[_seqbufptr+0] = EV_TIMING; \
|
|
_seqbuf[_seqbufptr+1] = (ev); \
|
|
_seqbuf[_seqbufptr+2] = 0;\
|
|
_seqbuf[_seqbufptr+3] = 0;\
|
|
*(u_int *)&_seqbuf[_seqbufptr+4] = (parm); \
|
|
_SEQ_ADVBUF(8); \
|
|
}
|
|
|
|
#define SEQ_START_TIMER() _TIMER_EVENT(TMR_START, 0)
|
|
#define SEQ_STOP_TIMER() _TIMER_EVENT(TMR_STOP, 0)
|
|
#define SEQ_CONTINUE_TIMER() _TIMER_EVENT(TMR_CONTINUE, 0)
|
|
#define SEQ_WAIT_TIME(ticks) _TIMER_EVENT(TMR_WAIT_ABS, ticks)
|
|
#define SEQ_DELTA_TIME(ticks) _TIMER_EVENT(TMR_WAIT_REL, ticks)
|
|
#define SEQ_ECHO_BACK(key) _TIMER_EVENT(TMR_ECHO, key)
|
|
#define SEQ_SET_TEMPO(value) _TIMER_EVENT(TMR_TEMPO, value)
|
|
#define SEQ_SONGPOS(pos) _TIMER_EVENT(TMR_SPP, pos)
|
|
#define SEQ_TIME_SIGNATURE(sig) _TIMER_EVENT(TMR_TIMESIG, sig)
|
|
|
|
/*
|
|
* Local control events
|
|
*/
|
|
|
|
#define _LOCAL_EVENT(ev, parm) { \
|
|
_SEQ_NEEDBUF(8);\
|
|
_seqbuf[_seqbufptr+0] = EV_SEQ_LOCAL; \
|
|
_seqbuf[_seqbufptr+1] = (ev); \
|
|
_seqbuf[_seqbufptr+2] = 0;\
|
|
_seqbuf[_seqbufptr+3] = 0;\
|
|
*(u_int *)&_seqbuf[_seqbufptr+4] = (parm); \
|
|
_SEQ_ADVBUF(8); \
|
|
}
|
|
|
|
#define SEQ_PLAYAUDIO(devmask) _LOCAL_EVENT(LOCL_STARTAUDIO, devmask)
|
|
/*
|
|
* Events for the level 1 interface only
|
|
*/
|
|
|
|
#define SEQ_MIDIOUT(device, byte) { \
|
|
_SEQ_NEEDBUF(4);\
|
|
_seqbuf[_seqbufptr] = SEQ_MIDIPUTC;\
|
|
_seqbuf[_seqbufptr+1] = (byte);\
|
|
_seqbuf[_seqbufptr+2] = (device);\
|
|
_seqbuf[_seqbufptr+3] = 0;\
|
|
_SEQ_ADVBUF(4);}
|
|
|
|
/*
|
|
* Patch loading.
|
|
*/
|
|
#define SEQ_WRPATCH(patchx, len) { \
|
|
if (_seqbufptr) seqbuf_dump(); \
|
|
if (write(seqfd, (char*)(patchx), len)==-1) \
|
|
perror("Write patch: /dev/sequencer"); \
|
|
}
|
|
|
|
#define SEQ_WRPATCH2(patchx, len) \
|
|
( seqbuf_dump(), write(seqfd, (char*)(patchx), len) )
|
|
|
|
#endif
|
|
|
|
/*
|
|
* Here I have moved all the aliases for ioctl names.
|
|
*/
|
|
|
|
#define SNDCTL_DSP_SAMPLESIZE SNDCTL_DSP_SETFMT
|
|
#define SOUND_PCM_WRITE_BITS SNDCTL_DSP_SETFMT
|
|
#define SOUND_PCM_SETFMT SNDCTL_DSP_SETFMT
|
|
|
|
#define SOUND_PCM_WRITE_RATE SNDCTL_DSP_SPEED
|
|
#define SOUND_PCM_POST SNDCTL_DSP_POST
|
|
#define SOUND_PCM_RESET SNDCTL_DSP_RESET
|
|
#define SOUND_PCM_SYNC SNDCTL_DSP_SYNC
|
|
#define SOUND_PCM_SUBDIVIDE SNDCTL_DSP_SUBDIVIDE
|
|
#define SOUND_PCM_SETFRAGMENT SNDCTL_DSP_SETFRAGMENT
|
|
#define SOUND_PCM_GETFMTS SNDCTL_DSP_GETFMTS
|
|
#define SOUND_PCM_GETOSPACE SNDCTL_DSP_GETOSPACE
|
|
#define SOUND_PCM_GETISPACE SNDCTL_DSP_GETISPACE
|
|
#define SOUND_PCM_NONBLOCK SNDCTL_DSP_NONBLOCK
|
|
#define SOUND_PCM_GETCAPS SNDCTL_DSP_GETCAPS
|
|
#define SOUND_PCM_GETTRIGGER SNDCTL_DSP_GETTRIGGER
|
|
#define SOUND_PCM_SETTRIGGER SNDCTL_DSP_SETTRIGGER
|
|
#define SOUND_PCM_SETSYNCRO SNDCTL_DSP_SETSYNCRO
|
|
#define SOUND_PCM_GETIPTR SNDCTL_DSP_GETIPTR
|
|
#define SOUND_PCM_GETOPTR SNDCTL_DSP_GETOPTR
|
|
#define SOUND_PCM_MAPINBUF SNDCTL_DSP_MAPINBUF
|
|
#define SOUND_PCM_MAPOUTBUF SNDCTL_DSP_MAPOUTBUF
|
|
|
|
#endif /* SOUNDCARD_H */
|