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channel.h (74763) channel.h (77269)
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

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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 *
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

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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: head/sys/dev/sound/pcm/channel.h 74763 2001-03-24 23:10:29Z cg $
26 * $FreeBSD: head/sys/dev/sound/pcm/channel.h 77269 2001-05-27 17:22:00Z cg $
27 */
28
27 */
28
29struct pcmchan_children {
30 SLIST_ENTRY(pcmchan_children) link;
31 struct pcm_channel *channel;
32};
33
29struct pcmchan_caps {
30 u_int32_t minspeed, maxspeed;
31 u_int32_t *fmtlist;
32 u_int32_t caps;
33};
34
35#define CHN_NAMELEN 32
36struct pcm_channel {
37 kobj_t methods;
38
34struct pcmchan_caps {
35 u_int32_t minspeed, maxspeed;
36 u_int32_t *fmtlist;
37 u_int32_t caps;
38};
39
40#define CHN_NAMELEN 32
41struct pcm_channel {
42 kobj_t methods;
43
44 pid_t pid;
45 int refcount;
39 struct pcm_feeder *feeder;
40 u_int32_t align;
41
42 int volume;
43 u_int32_t speed;
44 u_int32_t format;
45 u_int32_t flags;
46 u_int32_t feederflags;
47 u_int32_t blocks;
48
49 int direction;
50 struct snd_dbuf *bufhard, *bufsoft;
46 struct pcm_feeder *feeder;
47 u_int32_t align;
48
49 int volume;
50 u_int32_t speed;
51 u_int32_t format;
52 u_int32_t flags;
53 u_int32_t feederflags;
54 u_int32_t blocks;
55
56 int direction;
57 struct snd_dbuf *bufhard, *bufsoft;
51 struct snddev_info *parent;
58 struct snddev_info *parentsnddev;
59 struct pcm_channel *parentchannel;
52 void *devinfo;
53 char name[CHN_NAMELEN];
54 void *lock;
60 void *devinfo;
61 char name[CHN_NAMELEN];
62 void *lock;
63 SLIST_HEAD(, pcmchan_children) children;
55};
56
57#include "channel_if.h"
58
59int chn_reinit(struct pcm_channel *c);
60int chn_write(struct pcm_channel *c, struct uio *buf);
61int chn_read(struct pcm_channel *c, struct uio *buf);
62u_int32_t chn_start(struct pcm_channel *c, int force);

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81void chn_intr(struct pcm_channel *c);
82int chn_wrfeed(struct pcm_channel *c);
83int chn_rdfeed(struct pcm_channel *c);
84int chn_abort(struct pcm_channel *c);
85
86void chn_wrupdate(struct pcm_channel *c);
87void chn_rdupdate(struct pcm_channel *c);
88
64};
65
66#include "channel_if.h"
67
68int chn_reinit(struct pcm_channel *c);
69int chn_write(struct pcm_channel *c, struct uio *buf);
70int chn_read(struct pcm_channel *c, struct uio *buf);
71u_int32_t chn_start(struct pcm_channel *c, int force);

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90void chn_intr(struct pcm_channel *c);
91int chn_wrfeed(struct pcm_channel *c);
92int chn_rdfeed(struct pcm_channel *c);
93int chn_abort(struct pcm_channel *c);
94
95void chn_wrupdate(struct pcm_channel *c);
96void chn_rdupdate(struct pcm_channel *c);
97
98int chn_notify(struct pcm_channel *c, u_int32_t flags);
99
89#define CHN_LOCK(c) mtx_lock((struct mtx *)((c)->lock))
90#define CHN_UNLOCK(c) mtx_unlock((struct mtx *)((c)->lock))
91#define CHN_LOCKASSERT(c)
92
93int fmtvalid(u_int32_t fmt, u_int32_t *fmtlist);
94
100#define CHN_LOCK(c) mtx_lock((struct mtx *)((c)->lock))
101#define CHN_UNLOCK(c) mtx_unlock((struct mtx *)((c)->lock))
102#define CHN_LOCKASSERT(c)
103
104int fmtvalid(u_int32_t fmt, u_int32_t *fmtlist);
105
106#define PCMDIR_VIRTUAL 2
95#define PCMDIR_PLAY 1
96#define PCMDIR_REC -1
97
98#define PCMTRIG_START 1
99#define PCMTRIG_EMLDMAWR 2
100#define PCMTRIG_EMLDMARD 3
101#define PCMTRIG_STOP 0
102#define PCMTRIG_ABORT -1

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109
110#define CHN_F_BUSY 0x00001000 /* has been opened */
111#define CHN_F_HAS_SIZE 0x00002000 /* user set block size */
112#define CHN_F_NBIO 0x00004000 /* do non-blocking i/o */
113#define CHN_F_MAPPED 0x00010000 /* has been mmap()ed */
114#define CHN_F_DEAD 0x00020000
115#define CHN_F_BADSETTING 0x00040000
116
107#define PCMDIR_PLAY 1
108#define PCMDIR_REC -1
109
110#define PCMTRIG_START 1
111#define PCMTRIG_EMLDMAWR 2
112#define PCMTRIG_EMLDMARD 3
113#define PCMTRIG_STOP 0
114#define PCMTRIG_ABORT -1

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121
122#define CHN_F_BUSY 0x00001000 /* has been opened */
123#define CHN_F_HAS_SIZE 0x00002000 /* user set block size */
124#define CHN_F_NBIO 0x00004000 /* do non-blocking i/o */
125#define CHN_F_MAPPED 0x00010000 /* has been mmap()ed */
126#define CHN_F_DEAD 0x00020000
127#define CHN_F_BADSETTING 0x00040000
128
117#define CHN_F_RESET (CHN_F_BUSY | CHN_F_DEAD)
129#define CHN_F_VIRTUAL 0x10000000 /* not backed by hardware */
118
130
131#define CHN_F_RESET (CHN_F_BUSY | CHN_F_DEAD | CHN_F_VIRTUAL)
132
133#define CHN_N_RATE 0x00000001
134#define CHN_N_FORMAT 0x00000002
135#define CHN_N_VOLUME 0x00000004
136#define CHN_N_BLOCKSIZE 0x00000008
137#define CHN_N_TRIGGER 0x00000010
138
119/*
120 * This should be large enough to hold all pcm data between
121 * tsleeps in chn_{read,write} at the highest sample rate.
122 * (which is usually 48kHz * 16bit * stereo = 192000 bytes/sec)
123 */
124#define CHN_2NDBUFBLKSIZE (2 * 1024)
125/* The total number of blocks per secondary bufhard. */
126#define CHN_2NDBUFBLKNUM (32)
127/* The size of a whole secondary bufhard. */
128#define CHN_2NDBUFMAXSIZE (131072)
129
130#define CHN_DEFAULT_HZ 50
131
132#define CHANNEL_DECLARE(name) static DEFINE_CLASS(name, name ## _methods, sizeof(struct kobj))
139/*
140 * This should be large enough to hold all pcm data between
141 * tsleeps in chn_{read,write} at the highest sample rate.
142 * (which is usually 48kHz * 16bit * stereo = 192000 bytes/sec)
143 */
144#define CHN_2NDBUFBLKSIZE (2 * 1024)
145/* The total number of blocks per secondary bufhard. */
146#define CHN_2NDBUFBLKNUM (32)
147/* The size of a whole secondary bufhard. */
148#define CHN_2NDBUFMAXSIZE (131072)
149
150#define CHN_DEFAULT_HZ 50
151
152#define CHANNEL_DECLARE(name) static DEFINE_CLASS(name, name ## _methods, sizeof(struct kobj))