Remove some duplicate FreeBSD CVS IDs, move some IDs to better places.
[dragonfly.git] / sys / dev / sound / pcm / channel.h
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1/*
2 * Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: src/sys/dev/sound/pcm/channel.h,v 1.5.2.6 2002/04/22 15:49:36 cg Exp $
1de703da 27 * $DragonFly: src/sys/dev/sound/pcm/channel.h,v 1.2 2003/06/17 04:28:31 dillon Exp $
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28 */
29
30struct pcmchan_children {
31 SLIST_ENTRY(pcmchan_children) link;
32 struct pcm_channel *channel;
33};
34
35struct pcmchan_caps {
36 u_int32_t minspeed, maxspeed;
37 u_int32_t *fmtlist;
38 u_int32_t caps;
39};
40
41#define CHN_NAMELEN 32
42struct pcm_channel {
43 kobj_t methods;
44
45 int num;
46 pid_t pid;
47 int refcount;
48 struct pcm_feeder *feeder;
49 u_int32_t align;
50
51 int volume;
52 u_int32_t speed;
53 u_int32_t format;
54 u_int32_t flags;
55 u_int32_t feederflags;
56 u_int32_t blocks;
57
58 int direction;
59 unsigned int interrupts, xruns;
60 struct snd_dbuf *bufhard, *bufsoft;
61 struct snddev_info *parentsnddev;
62 struct pcm_channel *parentchannel;
63 void *devinfo;
64 device_t dev;
65 char name[CHN_NAMELEN];
66 void *lock;
67 SLIST_HEAD(, pcmchan_children) children;
68};
69
70#include "channel_if.h"
71
72int chn_reinit(struct pcm_channel *c);
73int chn_write(struct pcm_channel *c, struct uio *buf);
74int chn_read(struct pcm_channel *c, struct uio *buf);
75u_int32_t chn_start(struct pcm_channel *c, int force);
76int chn_sync(struct pcm_channel *c, int threshold);
77int chn_flush(struct pcm_channel *c);
78int chn_poll(struct pcm_channel *c, int ev, struct proc *p);
79
80int chn_init(struct pcm_channel *c, void *devinfo, int dir);
81int chn_kill(struct pcm_channel *c);
82int chn_setdir(struct pcm_channel *c, int dir);
83int chn_reset(struct pcm_channel *c, u_int32_t fmt);
84int chn_setvolume(struct pcm_channel *c, int left, int right);
85int chn_setspeed(struct pcm_channel *c, int speed);
86int chn_setformat(struct pcm_channel *c, u_int32_t fmt);
87int chn_setblocksize(struct pcm_channel *c, int blkcnt, int blksz);
88int chn_trigger(struct pcm_channel *c, int go);
89int chn_getptr(struct pcm_channel *c);
90struct pcmchan_caps *chn_getcaps(struct pcm_channel *c);
91u_int32_t chn_getformats(struct pcm_channel *c);
92
93void chn_resetbuf(struct pcm_channel *c);
94void chn_intr(struct pcm_channel *c);
95int chn_wrfeed(struct pcm_channel *c);
96int chn_rdfeed(struct pcm_channel *c);
97int chn_abort(struct pcm_channel *c);
98
99void chn_wrupdate(struct pcm_channel *c);
100void chn_rdupdate(struct pcm_channel *c);
101
102int chn_notify(struct pcm_channel *c, u_int32_t flags);
103
104#ifdef USING_MUTEX
105#define CHN_LOCK(c) mtx_lock((struct mtx *)((c)->lock))
106#define CHN_UNLOCK(c) mtx_unlock((struct mtx *)((c)->lock))
107#define CHN_LOCKASSERT(c)
108#else
109#define CHN_LOCK(c)
110#define CHN_UNLOCK(c)
111#define CHN_LOCKASSERT(c)
112#endif
113
114int fmtvalid(u_int32_t fmt, u_int32_t *fmtlist);
115
116#define PCMDIR_VIRTUAL 2
117#define PCMDIR_PLAY 1
118#define PCMDIR_REC -1
119
120#define PCMTRIG_START 1
121#define PCMTRIG_EMLDMAWR 2
122#define PCMTRIG_EMLDMARD 3
123#define PCMTRIG_STOP 0
124#define PCMTRIG_ABORT -1
125
126#define CHN_F_CLOSING 0x00000004 /* a pending close */
127#define CHN_F_ABORTING 0x00000008 /* a pending abort */
128#define CHN_F_RUNNING 0x00000010 /* dma is running */
129#define CHN_F_TRIGGERED 0x00000020
130#define CHN_F_NOTRIGGER 0x00000040
131
132#define CHN_F_BUSY 0x00001000 /* has been opened */
133#define CHN_F_HAS_SIZE 0x00002000 /* user set block size */
134#define CHN_F_NBIO 0x00004000 /* do non-blocking i/o */
135#define CHN_F_MAPPED 0x00010000 /* has been mmap()ed */
136#define CHN_F_DEAD 0x00020000
137#define CHN_F_BADSETTING 0x00040000
138
139#define CHN_F_VIRTUAL 0x10000000 /* not backed by hardware */
140
141#define CHN_F_RESET (CHN_F_BUSY | CHN_F_DEAD | CHN_F_VIRTUAL)
142
143#define CHN_N_RATE 0x00000001
144#define CHN_N_FORMAT 0x00000002
145#define CHN_N_VOLUME 0x00000004
146#define CHN_N_BLOCKSIZE 0x00000008
147#define CHN_N_TRIGGER 0x00000010
148
149/*
150 * This should be large enough to hold all pcm data between
151 * tsleeps in chn_{read,write} at the highest sample rate.
152 * (which is usually 48kHz * 16bit * stereo = 192000 bytes/sec)
153 */
154#define CHN_2NDBUFBLKSIZE (2 * 1024)
155/* The total number of blocks per secondary bufhard. */
156#define CHN_2NDBUFBLKNUM (32)
157/* The size of a whole secondary bufhard. */
158#define CHN_2NDBUFMAXSIZE (131072)
159
160#define CHANNEL_DECLARE(name) static DEFINE_CLASS(name, name ## _methods, sizeof(struct kobj))