bktr_audio.h revision 52593 
1/* $FreeBSD: head/sys/dev/bktr/bktr_audio.h 52593 1999-10-28 13:58:17Z roger $ */
2
3/*
4 * This is part of the Driver for Video Capture Cards (Frame grabbers)
5 * and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879
6 * chipset.
7 * Copyright Roger Hardiman and Amancio Hasty.
8 *
9 * bktr_audio : This deals with controlling the audio on TV cards,
10 *                controlling the Audio Multiplexer (audio source selector).
11 *                controlling any MSP34xx stereo audio decoders.
12 *                controlling any DPL35xx dolby surroud sound audio decoders.
13 *                initialising TDA98xx audio devices.
14 *
15 */
16
17/*
18 * 1. Redistributions of source code must retain the
19 * Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman
20 * All rights reserved.
21 *
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
24 * are met:
25 * 1. Redistributions of source code must retain the above copyright
26 *    notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 *    notice, this list of conditions and the following disclaimer in the
29 *    documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 *    must display the following acknowledgement:
32 *      This product includes software developed by Amancio Hasty and
33 *      Roger Hardiman
34 * 4. The name of the author may not be used to endorse or promote products
35 *    derived from this software without specific prior written permission.
36 *
37 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
38 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
39 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
40 * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
41 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
42 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
43 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
46 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
47 * POSSIBILITY OF SUCH DAMAGE.
48 */
49
50/*
51 * Select Audio source, and allow muting
52 */
53int	set_audio( bktr_ptr_t bktr, int mode );
54void	temp_mute( bktr_ptr_t bktr, int flag );
55
56
57/*
58 * Initialise any MSP or TDA devices
59 */
60void	init_audio_devices( bktr_ptr_t bktr );
61
62
63/*
64 * MSP34xx Audio Chip functions.
65 */
66void	msp_autodetect( bktr_ptr_t bktr );
67void	msp_read_id( bktr_ptr_t bktr );
68
69
70/*
71 * DPL35xx Audio Chip functions.
72 */
73void	dpl_autodetect( bktr_ptr_t bktr );
74void	dpl_read_id( bktr_ptr_t bktr );
75
76
77/*
78 * TDA98xx Audio Chip functions.
79 */
80void	init_BTSC( bktr_ptr_t bktr );
81int	set_BTSC( bktr_ptr_t bktr, int control );
82
83
84
85