projects/linux·blob v3.16 · refs

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1/*
2 * Copyright (C) 2012 Avionic Design GmbH
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9#ifndef __LINUX_HDMI_H_
10#define __LINUX_HDMI_H_
11
12#include <linux/types.h>
13
14enum hdmi_infoframe_type {
15 HDMI_INFOFRAME_TYPE_VENDOR = 0x81,
16 HDMI_INFOFRAME_TYPE_AVI = 0x82,
17 HDMI_INFOFRAME_TYPE_SPD = 0x83,
18 HDMI_INFOFRAME_TYPE_AUDIO = 0x84,
19};
20
21#define HDMI_IEEE_OUI 0x000c03
22#define HDMI_INFOFRAME_HEADER_SIZE 4
23#define HDMI_AVI_INFOFRAME_SIZE 13
24#define HDMI_SPD_INFOFRAME_SIZE 25
25#define HDMI_AUDIO_INFOFRAME_SIZE 10
26
27#define HDMI_INFOFRAME_SIZE(type) \
28 (HDMI_INFOFRAME_HEADER_SIZE + HDMI_ ## type ## _INFOFRAME_SIZE)
29
30struct hdmi_any_infoframe {
31 enum hdmi_infoframe_type type;
32 unsigned char version;
33 unsigned char length;
34};
35
36enum hdmi_colorspace {
37 HDMI_COLORSPACE_RGB,
38 HDMI_COLORSPACE_YUV422,
39 HDMI_COLORSPACE_YUV444,
40};
41
42enum hdmi_scan_mode {
43 HDMI_SCAN_MODE_NONE,
44 HDMI_SCAN_MODE_OVERSCAN,
45 HDMI_SCAN_MODE_UNDERSCAN,
46};
47
48enum hdmi_colorimetry {
49 HDMI_COLORIMETRY_NONE,
50 HDMI_COLORIMETRY_ITU_601,
51 HDMI_COLORIMETRY_ITU_709,
52 HDMI_COLORIMETRY_EXTENDED,
53};
54
55enum hdmi_picture_aspect {
56 HDMI_PICTURE_ASPECT_NONE,
57 HDMI_PICTURE_ASPECT_4_3,
58 HDMI_PICTURE_ASPECT_16_9,
59};
60
61enum hdmi_active_aspect {
62 HDMI_ACTIVE_ASPECT_16_9_TOP = 2,
63 HDMI_ACTIVE_ASPECT_14_9_TOP = 3,
64 HDMI_ACTIVE_ASPECT_16_9_CENTER = 4,
65 HDMI_ACTIVE_ASPECT_PICTURE = 8,
66 HDMI_ACTIVE_ASPECT_4_3 = 9,
67 HDMI_ACTIVE_ASPECT_16_9 = 10,
68 HDMI_ACTIVE_ASPECT_14_9 = 11,
69 HDMI_ACTIVE_ASPECT_4_3_SP_14_9 = 13,
70 HDMI_ACTIVE_ASPECT_16_9_SP_14_9 = 14,
71 HDMI_ACTIVE_ASPECT_16_9_SP_4_3 = 15,
72};
73
74enum hdmi_extended_colorimetry {
75 HDMI_EXTENDED_COLORIMETRY_XV_YCC_601,
76 HDMI_EXTENDED_COLORIMETRY_XV_YCC_709,
77 HDMI_EXTENDED_COLORIMETRY_S_YCC_601,
78 HDMI_EXTENDED_COLORIMETRY_ADOBE_YCC_601,
79 HDMI_EXTENDED_COLORIMETRY_ADOBE_RGB,
80};
81
82enum hdmi_quantization_range {
83 HDMI_QUANTIZATION_RANGE_DEFAULT,
84 HDMI_QUANTIZATION_RANGE_LIMITED,
85 HDMI_QUANTIZATION_RANGE_FULL,
86};
87
88/* non-uniform picture scaling */
89enum hdmi_nups {
90 HDMI_NUPS_UNKNOWN,
91 HDMI_NUPS_HORIZONTAL,
92 HDMI_NUPS_VERTICAL,
93 HDMI_NUPS_BOTH,
94};
95
96enum hdmi_ycc_quantization_range {
97 HDMI_YCC_QUANTIZATION_RANGE_LIMITED,
98 HDMI_YCC_QUANTIZATION_RANGE_FULL,
99};
100
101enum hdmi_content_type {
102 HDMI_CONTENT_TYPE_NONE,
103 HDMI_CONTENT_TYPE_PHOTO,
104 HDMI_CONTENT_TYPE_CINEMA,
105 HDMI_CONTENT_TYPE_GAME,
106};
107
108struct hdmi_avi_infoframe {
109 enum hdmi_infoframe_type type;
110 unsigned char version;
111 unsigned char length;
112 enum hdmi_colorspace colorspace;
113 enum hdmi_scan_mode scan_mode;
114 enum hdmi_colorimetry colorimetry;
115 enum hdmi_picture_aspect picture_aspect;
116 enum hdmi_active_aspect active_aspect;
117 bool itc;
118 enum hdmi_extended_colorimetry extended_colorimetry;
119 enum hdmi_quantization_range quantization_range;
120 enum hdmi_nups nups;
121 unsigned char video_code;
122 enum hdmi_ycc_quantization_range ycc_quantization_range;
123 enum hdmi_content_type content_type;
124 unsigned char pixel_repeat;
125 unsigned short top_bar;
126 unsigned short bottom_bar;
127 unsigned short left_bar;
128 unsigned short right_bar;
129};
130
131int hdmi_avi_infoframe_init(struct hdmi_avi_infoframe *frame);
132ssize_t hdmi_avi_infoframe_pack(struct hdmi_avi_infoframe *frame, void *buffer,
133 size_t size);
134
135enum hdmi_spd_sdi {
136 HDMI_SPD_SDI_UNKNOWN,
137 HDMI_SPD_SDI_DSTB,
138 HDMI_SPD_SDI_DVDP,
139 HDMI_SPD_SDI_DVHS,
140 HDMI_SPD_SDI_HDDVR,
141 HDMI_SPD_SDI_DVC,
142 HDMI_SPD_SDI_DSC,
143 HDMI_SPD_SDI_VCD,
144 HDMI_SPD_SDI_GAME,
145 HDMI_SPD_SDI_PC,
146 HDMI_SPD_SDI_BD,
147 HDMI_SPD_SDI_SACD,
148 HDMI_SPD_SDI_HDDVD,
149 HDMI_SPD_SDI_PMP,
150};
151
152struct hdmi_spd_infoframe {
153 enum hdmi_infoframe_type type;
154 unsigned char version;
155 unsigned char length;
156 char vendor[8];
157 char product[16];
158 enum hdmi_spd_sdi sdi;
159};
160
161int hdmi_spd_infoframe_init(struct hdmi_spd_infoframe *frame,
162 const char *vendor, const char *product);
163ssize_t hdmi_spd_infoframe_pack(struct hdmi_spd_infoframe *frame, void *buffer,
164 size_t size);
165
166enum hdmi_audio_coding_type {
167 HDMI_AUDIO_CODING_TYPE_STREAM,
168 HDMI_AUDIO_CODING_TYPE_PCM,
169 HDMI_AUDIO_CODING_TYPE_AC3,
170 HDMI_AUDIO_CODING_TYPE_MPEG1,
171 HDMI_AUDIO_CODING_TYPE_MP3,
172 HDMI_AUDIO_CODING_TYPE_MPEG2,
173 HDMI_AUDIO_CODING_TYPE_AAC_LC,
174 HDMI_AUDIO_CODING_TYPE_DTS,
175 HDMI_AUDIO_CODING_TYPE_ATRAC,
176 HDMI_AUDIO_CODING_TYPE_DSD,
177 HDMI_AUDIO_CODING_TYPE_EAC3,
178 HDMI_AUDIO_CODING_TYPE_DTS_HD,
179 HDMI_AUDIO_CODING_TYPE_MLP,
180 HDMI_AUDIO_CODING_TYPE_DST,
181 HDMI_AUDIO_CODING_TYPE_WMA_PRO,
182};
183
184enum hdmi_audio_sample_size {
185 HDMI_AUDIO_SAMPLE_SIZE_STREAM,
186 HDMI_AUDIO_SAMPLE_SIZE_16,
187 HDMI_AUDIO_SAMPLE_SIZE_20,
188 HDMI_AUDIO_SAMPLE_SIZE_24,
189};
190
191enum hdmi_audio_sample_frequency {
192 HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM,
193 HDMI_AUDIO_SAMPLE_FREQUENCY_32000,
194 HDMI_AUDIO_SAMPLE_FREQUENCY_44100,
195 HDMI_AUDIO_SAMPLE_FREQUENCY_48000,
196 HDMI_AUDIO_SAMPLE_FREQUENCY_88200,
197 HDMI_AUDIO_SAMPLE_FREQUENCY_96000,
198 HDMI_AUDIO_SAMPLE_FREQUENCY_176400,
199 HDMI_AUDIO_SAMPLE_FREQUENCY_192000,
200};
201
202enum hdmi_audio_coding_type_ext {
203 HDMI_AUDIO_CODING_TYPE_EXT_STREAM,
204 HDMI_AUDIO_CODING_TYPE_EXT_HE_AAC,
205 HDMI_AUDIO_CODING_TYPE_EXT_HE_AAC_V2,
206 HDMI_AUDIO_CODING_TYPE_EXT_MPEG_SURROUND,
207};
208
209struct hdmi_audio_infoframe {
210 enum hdmi_infoframe_type type;
211 unsigned char version;
212 unsigned char length;
213 unsigned char channels;
214 enum hdmi_audio_coding_type coding_type;
215 enum hdmi_audio_sample_size sample_size;
216 enum hdmi_audio_sample_frequency sample_frequency;
217 enum hdmi_audio_coding_type_ext coding_type_ext;
218 unsigned char channel_allocation;
219 unsigned char level_shift_value;
220 bool downmix_inhibit;
221
222};
223
224int hdmi_audio_infoframe_init(struct hdmi_audio_infoframe *frame);
225ssize_t hdmi_audio_infoframe_pack(struct hdmi_audio_infoframe *frame,
226 void *buffer, size_t size);
227
228enum hdmi_3d_structure {
229 HDMI_3D_STRUCTURE_INVALID = -1,
230 HDMI_3D_STRUCTURE_FRAME_PACKING = 0,
231 HDMI_3D_STRUCTURE_FIELD_ALTERNATIVE,
232 HDMI_3D_STRUCTURE_LINE_ALTERNATIVE,
233 HDMI_3D_STRUCTURE_SIDE_BY_SIDE_FULL,
234 HDMI_3D_STRUCTURE_L_DEPTH,
235 HDMI_3D_STRUCTURE_L_DEPTH_GFX_GFX_DEPTH,
236 HDMI_3D_STRUCTURE_TOP_AND_BOTTOM,
237 HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF = 8,
238};
239
240
241struct hdmi_vendor_infoframe {
242 enum hdmi_infoframe_type type;
243 unsigned char version;
244 unsigned char length;
245 unsigned int oui;
246 u8 vic;
247 enum hdmi_3d_structure s3d_struct;
248 unsigned int s3d_ext_data;
249};
250
251int hdmi_vendor_infoframe_init(struct hdmi_vendor_infoframe *frame);
252ssize_t hdmi_vendor_infoframe_pack(struct hdmi_vendor_infoframe *frame,
253 void *buffer, size_t size);
254
255union hdmi_vendor_any_infoframe {
256 struct {
257 enum hdmi_infoframe_type type;
258 unsigned char version;
259 unsigned char length;
260 unsigned int oui;
261 } any;
262 struct hdmi_vendor_infoframe hdmi;
263};
264
265/**
266 * union hdmi_infoframe - overall union of all abstract infoframe representations
267 * @any: generic infoframe
268 * @avi: avi infoframe
269 * @spd: spd infoframe
270 * @vendor: union of all vendor infoframes
271 * @audio: audio infoframe
272 *
273 * This is used by the generic pack function. This works since all infoframes
274 * have the same header which also indicates which type of infoframe should be
275 * packed.
276 */
277union hdmi_infoframe {
278 struct hdmi_any_infoframe any;
279 struct hdmi_avi_infoframe avi;
280 struct hdmi_spd_infoframe spd;
281 union hdmi_vendor_any_infoframe vendor;
282 struct hdmi_audio_infoframe audio;
283};
284
285ssize_t
286hdmi_infoframe_pack(union hdmi_infoframe *frame, void *buffer, size_t size);
287
288#endif /* _DRM_HDMI_H */