xref: /freebsd/sys/dev/sound/pcm/channel_if.m (revision 6af83ee0d2941d18880b6aaa2b4facd1d30c6106) 
1#-
2# KOBJ
3#
4# Copyright (c) 2000 Cameron Grant <cg@freebsd.org>
5# All rights reserved.
6#
7# Redistribution and use in source and binary forms, with or without
8# modification, are permitted provided that the following conditions
9# are met:
10# 1. Redistributions of source code must retain the above copyright
11#    notice, this list of conditions and the following disclaimer.
12# 2. Redistributions in binary form must reproduce the above copyright
13#    notice, this list of conditions and the following disclaimer in the
14#    documentation and/or other materials provided with the distribution.
15#
16# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26# SUCH DAMAGE.
27#
28# $FreeBSD$
29#
30
31#include <dev/sound/pcm/sound.h>
32
33INTERFACE channel;
34
35CODE {
36
37	static int
38	channel_nosetdir(kobj_t obj, void *data, int dir)
39	{
40		return 0;
41	}
42
43	static int
44	channel_noreset(kobj_t obj, void *data)
45	{
46		return 0;
47	}
48
49	static int
50	channel_noresetdone(kobj_t obj, void *data)
51	{
52		return 0;
53	}
54
55	static int
56	channel_nofree(kobj_t obj, void *data)
57	{
58		return 1;
59	}
60
61	static u_int32_t
62	channel_nogetptr(kobj_t obj, void *data)
63	{
64		return 0;
65	}
66
67	static int
68	channel_nonotify(kobj_t obj, void *data, u_int32_t changed)
69	{
70		return 0;
71	}
72
73};
74
75METHOD void* init {
76	kobj_t obj;
77	void *devinfo;
78	struct snd_dbuf *b;
79	struct pcm_channel *c;
80	int dir;
81};
82
83METHOD int free {
84	kobj_t obj;
85	void *data;
86} DEFAULT channel_nofree;
87
88METHOD int reset {
89	kobj_t obj;
90	void *data;
91} DEFAULT channel_noreset;
92
93METHOD int resetdone {
94	kobj_t obj;
95	void *data;
96} DEFAULT channel_noresetdone;
97
98METHOD int setdir {
99	kobj_t obj;
100	void *data;
101	int dir;
102} DEFAULT channel_nosetdir;
103
104METHOD u_int32_t setformat {
105	kobj_t obj;
106	void *data;
107	u_int32_t format;
108};
109
110METHOD u_int32_t setspeed {
111	kobj_t obj;
112	void *data;
113	u_int32_t speed;
114};
115
116METHOD u_int32_t setblocksize {
117	kobj_t obj;
118	void *data;
119	u_int32_t blocksize;
120};
121
122METHOD int trigger {
123	kobj_t obj;
124	void *data;
125	int go;
126};
127
128METHOD u_int32_t getptr {
129	kobj_t obj;
130	void *data;
131} DEFAULT channel_nogetptr;
132
133METHOD struct pcmchan_caps* getcaps {
134	kobj_t obj;
135	void *data;
136};
137
138METHOD int notify {
139	kobj_t obj;
140	void *data;
141	u_int32_t changed;
142} DEFAULT channel_nonotify;
143