1 | /* $NetBSD: hdmireg.h,v 1.1 2015/03/28 14:09:59 jmcneill Exp $ */ |
2 | |
3 | /* |
4 | * Copyright (c) 2011 Jared D. McNeill <jmcneill@invisible.ca> |
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. The name of the author may not be used to endorse or promote products |
13 | * derived from this software without specific prior written permission. |
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 | #ifndef _HDMIREG_H |
29 | #define _HDMIREG_H |
30 | |
31 | struct { |
32 | uint8_t ; |
33 | uint8_t ; |
34 | uint8_t ; |
35 | } __packed; |
36 | |
37 | #define HDMI_AI_PACKET_TYPE 0x84 |
38 | #define HDMI_AI_VERSION 0x01 |
39 | #define HDMI_AI_LENGTH 0x0a |
40 | |
41 | struct hdmi_audio_infoframe { |
42 | struct hdmi_audio_infoframe_header ; |
43 | uint8_t checksum; |
44 | uint8_t ct_cc; |
45 | uint8_t sf_ss; |
46 | uint8_t ct_ext; |
47 | uint8_t ca; |
48 | uint8_t dm_inh_lsv; |
49 | uint8_t reserved; |
50 | } __packed; |
51 | |
52 | #define HDMI_AI_CHANNEL_COUNT(ai) ((ai)->ct_cc & 0x07) |
53 | #define HDMI_AI_CODING_TYPE(ai) ((ai)->ct_cc & 0xf0) |
54 | #define HDMI_AI_SAMPLE_SIZE(ai) ((ai)->sf_ss & 0x03) |
55 | #define HDMI_AI_SAMPLE_FREQUENCY(ai) ((ai)->sf_ss & 0x18) |
56 | #define HDMI_AI_LSV(ai) ((ai)->dm_inh_lsv & 0x78) |
57 | #define HDMI_AI_DM_INH(ai) ((ai)->dm_inh_lsv & 0x80) |
58 | |
59 | #endif /* !_HDMIREG_H */ |
60 | |