this file has been unused for some time now
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/*
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* Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk>
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* All rights reserved.
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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 copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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typedef struct _snd_mixer snd_mixer;
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typedef struct _snd_dbuf snd_dbuf;
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typedef struct _snddev_info snddev_info;
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typedef struct _pcmchan_caps pcmchan_caps;
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typedef struct _pcm_feeder pcm_feeder;
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typedef struct _pcm_channel pcm_channel;
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/*****************************************************************************/
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struct _snd_mixer {
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KOBJ_FIELDS;
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const char *name;
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void *devinfo;
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int busy;
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int hwvol_muted;
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int hwvol_mixer;
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int hwvol_step;
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u_int32_t hwvol_mute_level;
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u_int32_t devs;
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u_int32_t recdevs;
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u_int32_t recsrc;
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u_int16_t level[32];
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};
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/*****************************************************************************/
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/*
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* descriptor of a dma buffer. See dmabuf.c for documentation.
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* (rp,rl) and (fp,fl) identify the READY and FREE regions of the
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* buffer. dl contains the length used for dma transfer, dl>0 also
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* means that the channel is busy and there is a DMA transfer in progress.
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*/
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struct _snd_dbuf {
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u_int8_t *buf;
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int bufsize, maxsize;
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volatile int dl; /* transfer size */
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volatile int rp, fp; /* pointers to the ready and free area */
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volatile int rl, fl; /* lenght of ready and free areas. */
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volatile int hp;
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volatile u_int32_t int_count, prev_int_count;
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volatile u_int32_t total, prev_total;
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int chan, dir; /* dma channel */
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int fmt, spd, bps;
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int blksz, blkcnt;
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int underflow, overrun;
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u_int32_t flags;
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bus_dmamap_t dmamap;
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bus_dma_tag_t dmatag;
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struct selinfo sel;
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};
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#define SNDBUF_F_ISADMA 0x00000001
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/*****************************************************************************/
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struct pcm_feederdesc {
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u_int32_t type;
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u_int32_t in, out;
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u_int32_t flags;
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int idx;
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};
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struct _pcm_feeder {
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KOBJ_FIELDS;
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int align;
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struct pcm_feederdesc *desc;
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void *data;
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pcm_feeder *source;
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};
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/*****************************************************************************/
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struct _pcmchan_caps {
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u_int32_t minspeed, maxspeed;
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u_int32_t *fmtlist;
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u_int32_t caps;
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};
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struct _pcm_channel {
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kobj_t methods;
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pcm_feeder *feeder;
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u_int32_t align;
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int volume;
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u_int32_t speed;
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u_int32_t format;
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u_int32_t flags;
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u_int32_t feederflags;
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u_int32_t blocks;
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int direction;
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snd_dbuf buffer, bufsoft;
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snddev_info *parent;
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void *devinfo;
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};
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/*****************************************************************************/
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#define SND_STATUSLEN 64
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/* descriptor of audio device */
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struct _snddev_info {
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pcm_channel *play, *rec, **aplay, **arec, fakechan;
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int *ref, *atype;
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unsigned playcount, reccount, chancount, maxchans;
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snd_mixer *mixer;
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u_long magic;
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unsigned flags;
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void *devinfo;
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device_t dev;
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char status[SND_STATUSLEN];
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#ifdef SND_DYNSYSCTL
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struct sysctl_ctx_list sysctl_tree;
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struct sysctl_oid *sysctl_tree_top;
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#endif
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};
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/*****************************************************************************/
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/* mixer description structure and macros - these should go away,
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* only mss.[ch] use them
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*/
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struct mixer_def {
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u_int regno:7;
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u_int polarity:1; /* 1 means reversed */
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u_int bitoffs:4;
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u_int nbits:4;
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};
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typedef struct mixer_def mixer_ent;
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typedef struct mixer_def mixer_tab[32][2];
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#define MIX_ENT(name, reg_l, pol_l, pos_l, len_l, reg_r, pol_r, pos_r, len_r) \
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{{reg_l, pol_l, pos_l, len_l}, {reg_r, pol_r, pos_r, len_r}}
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#define PMIX_ENT(name, reg_l, pos_l, len_l, reg_r, pos_r, len_r) \
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{{reg_l, 0, pos_l, len_l}, {reg_r, 0, pos_r, len_r}}
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#define MIX_NONE(name) MIX_ENT(name, 0,0,0,0, 0,0,0,0)
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