FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/ac97var.h
1 /* $NetBSD: ac97var.h,v 1.8.2.1 2004/09/22 20:58:06 jmc Exp $ */
2 /* $OpenBSD: ac97.h,v 1.4 2000/07/19 09:01:35 csapuntz Exp $ */
3
4 /*
5 * Copyright (c) 1999 Constantine Sapuntzakis
6 *
7 * Author: Constantine Sapuntzakis <csapuntz@stanford.edu>
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY CONSTANTINE SAPUNTZAKIS AND CONTRIBUTORS
19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
20 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
22 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
28 * POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 struct ac97_codec_if;
32
33 /*
34 * This is the interface used to attach the AC97 compliant CODEC.
35 */
36 enum ac97_host_flags {
37 AC97_HOST_DONT_READ = 0x1,
38 AC97_HOST_SWAPPED_CHANNELS = 0x2 /* l/r is reversed */
39 };
40
41 struct ac97_host_if {
42 void *arg;
43
44 int (*attach)(void *, struct ac97_codec_if *);
45 int (*read)(void *, u_int8_t, u_int16_t *);
46 int (*write)(void *, u_int8_t, u_int16_t);
47 int (*reset)(void *);
48
49 enum ac97_host_flags (*flags)(void *);
50 };
51
52 /*
53 * This is the interface exported by the AC97 compliant CODEC
54 */
55 struct ac97_codec_if_vtbl {
56 int (*mixer_get_port)(struct ac97_codec_if *, mixer_ctrl_t *);
57 int (*mixer_set_port)(struct ac97_codec_if *, mixer_ctrl_t *);
58 int (*query_devinfo)(struct ac97_codec_if *, mixer_devinfo_t *);
59 int (*get_portnum_by_name)(struct ac97_codec_if *, const char *,
60 const char *, const char *);
61 /*
62 * The AC97 codec driver records the various port settings. This
63 * function can be used to restore the port settings, e.g. after
64 * resume from a laptop suspend to disk.
65 */
66 void (*restore_ports)(struct ac97_codec_if *);
67
68 u_int16_t (*get_extcaps)(struct ac97_codec_if *);
69 int (*set_rate)(struct ac97_codec_if *, int, u_long *);
70 void (*set_clock)(struct ac97_codec_if *, unsigned int);
71 };
72
73 struct ac97_codec_if {
74 struct ac97_codec_if_vtbl *vtbl;
75 };
76
77 int ac97_attach __P((struct ac97_host_if *));
Cache object: ffd0766e71b5590505f04a947128b248
|