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TOMOYO Linux Cross Reference
Linux/include/linux/hdmi.h

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  1 /*
  2  * Copyright (C) 2012 Avionic Design GmbH
  3  *
  4  * Permission is hereby granted, free of charge, to any person obtaining a
  5  * copy of this software and associated documentation files (the "Software"),
  6  * to deal in the Software without restriction, including without limitation
  7  * the rights to use, copy, modify, merge, publish, distribute, sub license,
  8  * and/or sell copies of the Software, and to permit persons to whom the
  9  * Software is furnished to do so, subject to the following conditions:
 10  *
 11  * The above copyright notice and this permission notice (including the
 12  * next paragraph) shall be included in all copies or substantial portions
 13  * of the Software.
 14  *
 15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
 18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 21  * DEALINGS IN THE SOFTWARE.
 22  */
 23 
 24 #ifndef __LINUX_HDMI_H_
 25 #define __LINUX_HDMI_H_
 26 
 27 #include <linux/types.h>
 28 #include <linux/device.h>
 29 
 30 enum hdmi_infoframe_type {
 31         HDMI_INFOFRAME_TYPE_VENDOR = 0x81,
 32         HDMI_INFOFRAME_TYPE_AVI = 0x82,
 33         HDMI_INFOFRAME_TYPE_SPD = 0x83,
 34         HDMI_INFOFRAME_TYPE_AUDIO = 0x84,
 35 };
 36 
 37 #define HDMI_IEEE_OUI 0x000c03
 38 #define HDMI_FORUM_IEEE_OUI 0xc45dd8
 39 #define HDMI_INFOFRAME_HEADER_SIZE  4
 40 #define HDMI_AVI_INFOFRAME_SIZE    13
 41 #define HDMI_SPD_INFOFRAME_SIZE    25
 42 #define HDMI_AUDIO_INFOFRAME_SIZE  10
 43 
 44 #define HDMI_INFOFRAME_SIZE(type)       \
 45         (HDMI_INFOFRAME_HEADER_SIZE + HDMI_ ## type ## _INFOFRAME_SIZE)
 46 
 47 struct hdmi_any_infoframe {
 48         enum hdmi_infoframe_type type;
 49         unsigned char version;
 50         unsigned char length;
 51 };
 52 
 53 enum hdmi_colorspace {
 54         HDMI_COLORSPACE_RGB,
 55         HDMI_COLORSPACE_YUV422,
 56         HDMI_COLORSPACE_YUV444,
 57         HDMI_COLORSPACE_YUV420,
 58         HDMI_COLORSPACE_RESERVED4,
 59         HDMI_COLORSPACE_RESERVED5,
 60         HDMI_COLORSPACE_RESERVED6,
 61         HDMI_COLORSPACE_IDO_DEFINED,
 62 };
 63 
 64 enum hdmi_scan_mode {
 65         HDMI_SCAN_MODE_NONE,
 66         HDMI_SCAN_MODE_OVERSCAN,
 67         HDMI_SCAN_MODE_UNDERSCAN,
 68         HDMI_SCAN_MODE_RESERVED,
 69 };
 70 
 71 enum hdmi_colorimetry {
 72         HDMI_COLORIMETRY_NONE,
 73         HDMI_COLORIMETRY_ITU_601,
 74         HDMI_COLORIMETRY_ITU_709,
 75         HDMI_COLORIMETRY_EXTENDED,
 76 };
 77 
 78 enum hdmi_picture_aspect {
 79         HDMI_PICTURE_ASPECT_NONE,
 80         HDMI_PICTURE_ASPECT_4_3,
 81         HDMI_PICTURE_ASPECT_16_9,
 82         HDMI_PICTURE_ASPECT_64_27,
 83         HDMI_PICTURE_ASPECT_256_135,
 84         HDMI_PICTURE_ASPECT_RESERVED,
 85 };
 86 
 87 enum hdmi_active_aspect {
 88         HDMI_ACTIVE_ASPECT_16_9_TOP = 2,
 89         HDMI_ACTIVE_ASPECT_14_9_TOP = 3,
 90         HDMI_ACTIVE_ASPECT_16_9_CENTER = 4,
 91         HDMI_ACTIVE_ASPECT_PICTURE = 8,
 92         HDMI_ACTIVE_ASPECT_4_3 = 9,
 93         HDMI_ACTIVE_ASPECT_16_9 = 10,
 94         HDMI_ACTIVE_ASPECT_14_9 = 11,
 95         HDMI_ACTIVE_ASPECT_4_3_SP_14_9 = 13,
 96         HDMI_ACTIVE_ASPECT_16_9_SP_14_9 = 14,
 97         HDMI_ACTIVE_ASPECT_16_9_SP_4_3 = 15,
 98 };
 99 
100 enum hdmi_extended_colorimetry {
101         HDMI_EXTENDED_COLORIMETRY_XV_YCC_601,
102         HDMI_EXTENDED_COLORIMETRY_XV_YCC_709,
103         HDMI_EXTENDED_COLORIMETRY_S_YCC_601,
104         HDMI_EXTENDED_COLORIMETRY_OPYCC_601,
105         HDMI_EXTENDED_COLORIMETRY_OPRGB,
106 
107         /* The following EC values are only defined in CEA-861-F. */
108         HDMI_EXTENDED_COLORIMETRY_BT2020_CONST_LUM,
109         HDMI_EXTENDED_COLORIMETRY_BT2020,
110         HDMI_EXTENDED_COLORIMETRY_RESERVED,
111 };
112 
113 enum hdmi_quantization_range {
114         HDMI_QUANTIZATION_RANGE_DEFAULT,
115         HDMI_QUANTIZATION_RANGE_LIMITED,
116         HDMI_QUANTIZATION_RANGE_FULL,
117         HDMI_QUANTIZATION_RANGE_RESERVED,
118 };
119 
120 /* non-uniform picture scaling */
121 enum hdmi_nups {
122         HDMI_NUPS_UNKNOWN,
123         HDMI_NUPS_HORIZONTAL,
124         HDMI_NUPS_VERTICAL,
125         HDMI_NUPS_BOTH,
126 };
127 
128 enum hdmi_ycc_quantization_range {
129         HDMI_YCC_QUANTIZATION_RANGE_LIMITED,
130         HDMI_YCC_QUANTIZATION_RANGE_FULL,
131 };
132 
133 enum hdmi_content_type {
134         HDMI_CONTENT_TYPE_GRAPHICS,
135         HDMI_CONTENT_TYPE_PHOTO,
136         HDMI_CONTENT_TYPE_CINEMA,
137         HDMI_CONTENT_TYPE_GAME,
138 };
139 
140 struct hdmi_avi_infoframe {
141         enum hdmi_infoframe_type type;
142         unsigned char version;
143         unsigned char length;
144         enum hdmi_colorspace colorspace;
145         enum hdmi_scan_mode scan_mode;
146         enum hdmi_colorimetry colorimetry;
147         enum hdmi_picture_aspect picture_aspect;
148         enum hdmi_active_aspect active_aspect;
149         bool itc;
150         enum hdmi_extended_colorimetry extended_colorimetry;
151         enum hdmi_quantization_range quantization_range;
152         enum hdmi_nups nups;
153         unsigned char video_code;
154         enum hdmi_ycc_quantization_range ycc_quantization_range;
155         enum hdmi_content_type content_type;
156         unsigned char pixel_repeat;
157         unsigned short top_bar;
158         unsigned short bottom_bar;
159         unsigned short left_bar;
160         unsigned short right_bar;
161 };
162 
163 int hdmi_avi_infoframe_init(struct hdmi_avi_infoframe *frame);
164 ssize_t hdmi_avi_infoframe_pack(struct hdmi_avi_infoframe *frame, void *buffer,
165                                 size_t size);
166 
167 enum hdmi_spd_sdi {
168         HDMI_SPD_SDI_UNKNOWN,
169         HDMI_SPD_SDI_DSTB,
170         HDMI_SPD_SDI_DVDP,
171         HDMI_SPD_SDI_DVHS,
172         HDMI_SPD_SDI_HDDVR,
173         HDMI_SPD_SDI_DVC,
174         HDMI_SPD_SDI_DSC,
175         HDMI_SPD_SDI_VCD,
176         HDMI_SPD_SDI_GAME,
177         HDMI_SPD_SDI_PC,
178         HDMI_SPD_SDI_BD,
179         HDMI_SPD_SDI_SACD,
180         HDMI_SPD_SDI_HDDVD,
181         HDMI_SPD_SDI_PMP,
182 };
183 
184 struct hdmi_spd_infoframe {
185         enum hdmi_infoframe_type type;
186         unsigned char version;
187         unsigned char length;
188         char vendor[8];
189         char product[16];
190         enum hdmi_spd_sdi sdi;
191 };
192 
193 int hdmi_spd_infoframe_init(struct hdmi_spd_infoframe *frame,
194                             const char *vendor, const char *product);
195 ssize_t hdmi_spd_infoframe_pack(struct hdmi_spd_infoframe *frame, void *buffer,
196                                 size_t size);
197 
198 enum hdmi_audio_coding_type {
199         HDMI_AUDIO_CODING_TYPE_STREAM,
200         HDMI_AUDIO_CODING_TYPE_PCM,
201         HDMI_AUDIO_CODING_TYPE_AC3,
202         HDMI_AUDIO_CODING_TYPE_MPEG1,
203         HDMI_AUDIO_CODING_TYPE_MP3,
204         HDMI_AUDIO_CODING_TYPE_MPEG2,
205         HDMI_AUDIO_CODING_TYPE_AAC_LC,
206         HDMI_AUDIO_CODING_TYPE_DTS,
207         HDMI_AUDIO_CODING_TYPE_ATRAC,
208         HDMI_AUDIO_CODING_TYPE_DSD,
209         HDMI_AUDIO_CODING_TYPE_EAC3,
210         HDMI_AUDIO_CODING_TYPE_DTS_HD,
211         HDMI_AUDIO_CODING_TYPE_MLP,
212         HDMI_AUDIO_CODING_TYPE_DST,
213         HDMI_AUDIO_CODING_TYPE_WMA_PRO,
214         HDMI_AUDIO_CODING_TYPE_CXT,
215 };
216 
217 enum hdmi_audio_sample_size {
218         HDMI_AUDIO_SAMPLE_SIZE_STREAM,
219         HDMI_AUDIO_SAMPLE_SIZE_16,
220         HDMI_AUDIO_SAMPLE_SIZE_20,
221         HDMI_AUDIO_SAMPLE_SIZE_24,
222 };
223 
224 enum hdmi_audio_sample_frequency {
225         HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM,
226         HDMI_AUDIO_SAMPLE_FREQUENCY_32000,
227         HDMI_AUDIO_SAMPLE_FREQUENCY_44100,
228         HDMI_AUDIO_SAMPLE_FREQUENCY_48000,
229         HDMI_AUDIO_SAMPLE_FREQUENCY_88200,
230         HDMI_AUDIO_SAMPLE_FREQUENCY_96000,
231         HDMI_AUDIO_SAMPLE_FREQUENCY_176400,
232         HDMI_AUDIO_SAMPLE_FREQUENCY_192000,
233 };
234 
235 enum hdmi_audio_coding_type_ext {
236         /* Refer to Audio Coding Type (CT) field in Data Byte 1 */
237         HDMI_AUDIO_CODING_TYPE_EXT_CT,
238 
239         /*
240          * The next three CXT values are defined in CEA-861-E only.
241          * They do not exist in older versions, and in CEA-861-F they are
242          * defined as 'Not in use'.
243          */
244         HDMI_AUDIO_CODING_TYPE_EXT_HE_AAC,
245         HDMI_AUDIO_CODING_TYPE_EXT_HE_AAC_V2,
246         HDMI_AUDIO_CODING_TYPE_EXT_MPEG_SURROUND,
247 
248         /* The following CXT values are only defined in CEA-861-F. */
249         HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_HE_AAC,
250         HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_HE_AAC_V2,
251         HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_AAC_LC,
252         HDMI_AUDIO_CODING_TYPE_EXT_DRA,
253         HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_HE_AAC_SURROUND,
254         HDMI_AUDIO_CODING_TYPE_EXT_MPEG4_AAC_LC_SURROUND = 10,
255 };
256 
257 struct hdmi_audio_infoframe {
258         enum hdmi_infoframe_type type;
259         unsigned char version;
260         unsigned char length;
261         unsigned char channels;
262         enum hdmi_audio_coding_type coding_type;
263         enum hdmi_audio_sample_size sample_size;
264         enum hdmi_audio_sample_frequency sample_frequency;
265         enum hdmi_audio_coding_type_ext coding_type_ext;
266         unsigned char channel_allocation;
267         unsigned char level_shift_value;
268         bool downmix_inhibit;
269 
270 };
271 
272 int hdmi_audio_infoframe_init(struct hdmi_audio_infoframe *frame);
273 ssize_t hdmi_audio_infoframe_pack(struct hdmi_audio_infoframe *frame,
274                                   void *buffer, size_t size);
275 
276 enum hdmi_3d_structure {
277         HDMI_3D_STRUCTURE_INVALID = -1,
278         HDMI_3D_STRUCTURE_FRAME_PACKING = 0,
279         HDMI_3D_STRUCTURE_FIELD_ALTERNATIVE,
280         HDMI_3D_STRUCTURE_LINE_ALTERNATIVE,
281         HDMI_3D_STRUCTURE_SIDE_BY_SIDE_FULL,
282         HDMI_3D_STRUCTURE_L_DEPTH,
283         HDMI_3D_STRUCTURE_L_DEPTH_GFX_GFX_DEPTH,
284         HDMI_3D_STRUCTURE_TOP_AND_BOTTOM,
285         HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF = 8,
286 };
287 
288 
289 struct hdmi_vendor_infoframe {
290         enum hdmi_infoframe_type type;
291         unsigned char version;
292         unsigned char length;
293         unsigned int oui;
294         u8 vic;
295         enum hdmi_3d_structure s3d_struct;
296         unsigned int s3d_ext_data;
297 };
298 
299 int hdmi_vendor_infoframe_init(struct hdmi_vendor_infoframe *frame);
300 ssize_t hdmi_vendor_infoframe_pack(struct hdmi_vendor_infoframe *frame,
301                                    void *buffer, size_t size);
302 
303 union hdmi_vendor_any_infoframe {
304         struct {
305                 enum hdmi_infoframe_type type;
306                 unsigned char version;
307                 unsigned char length;
308                 unsigned int oui;
309         } any;
310         struct hdmi_vendor_infoframe hdmi;
311 };
312 
313 /**
314  * union hdmi_infoframe - overall union of all abstract infoframe representations
315  * @any: generic infoframe
316  * @avi: avi infoframe
317  * @spd: spd infoframe
318  * @vendor: union of all vendor infoframes
319  * @audio: audio infoframe
320  *
321  * This is used by the generic pack function. This works since all infoframes
322  * have the same header which also indicates which type of infoframe should be
323  * packed.
324  */
325 union hdmi_infoframe {
326         struct hdmi_any_infoframe any;
327         struct hdmi_avi_infoframe avi;
328         struct hdmi_spd_infoframe spd;
329         union hdmi_vendor_any_infoframe vendor;
330         struct hdmi_audio_infoframe audio;
331 };
332 
333 ssize_t
334 hdmi_infoframe_pack(union hdmi_infoframe *frame, void *buffer, size_t size);
335 int hdmi_infoframe_unpack(union hdmi_infoframe *frame, void *buffer);
336 void hdmi_infoframe_log(const char *level, struct device *dev,
337                         union hdmi_infoframe *frame);
338 
339 #endif /* _DRM_HDMI_H */
340 

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