| 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 | |