xref: /netbsd-src/sys/dev/ic/msm6258var.h (revision e622eac459adf11c2e710d7a4de0f05510bbbe61)
1 /*	$NetBSD: msm6258var.h,v 1.11 2019/05/08 13:40:18 isaki Exp $	*/
2 
3 /*
4  * Copyright (c) 2001 Tetsuya Isaki. All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
20  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
21  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
22  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  */
27 
28 /*
29  * OKI MSM6258 ADPCM voice synthesizer codec.
30  */
31 
32 struct msm6258_codecvar {
33 	int16_t		mc_amp;
34 	int8_t		mc_estim;
35 
36 	aint_t pending_sample;	/* hold one pending sample. */
37 };
38 
39 extern void msm6258_adpcm_to_internal(audio_filter_arg_t *);
40 extern void msm6258_internal_to_adpcm(audio_filter_arg_t *);
41