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
7 * Copyright Roger Hardiman and Amancio Hasty.
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.
18 * 1. Redistributions of source code must retain the
19 * Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman
20 * All rights reserved.
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
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
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.
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.
51 * Select Audio source, and allow muting
53 int set_audio( bktr_ptr_t bktr, int mode );
54 void temp_mute( bktr_ptr_t bktr, int flag );
58 * Initialise any MSP or TDA devices
60 void init_audio_devices( bktr_ptr_t bktr );
64 * MSP34xx Audio Chip functions.
66 void msp_autodetect( bktr_ptr_t bktr );
67 void msp_read_id( bktr_ptr_t bktr );
71 * DPL35xx Audio Chip functions.
73 void dpl_autodetect( bktr_ptr_t bktr );
74 void dpl_read_id( bktr_ptr_t bktr );
78 * TDA98xx Audio Chip functions.
80 void init_BTSC( bktr_ptr_t bktr );
81 int set_BTSC( bktr_ptr_t bktr, int control );