Commit | Line | Data |
---|---|---|
f453ba04 DA |
1 | /* |
2 | * Copyright © 2007-2008 Intel Corporation | |
3 | * Jesse Barnes <jesse.barnes@intel.com> | |
4 | * | |
5 | * Permission is hereby granted, free of charge, to any person obtaining a | |
6 | * copy of this software and associated documentation files (the "Software"), | |
7 | * to deal in the Software without restriction, including without limitation | |
8 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
9 | * and/or sell copies of the Software, and to permit persons to whom the | |
10 | * Software is furnished to do so, subject to the following conditions: | |
11 | * | |
12 | * The above copyright notice and this permission notice shall be included in | |
13 | * all copies or substantial portions 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 NONINFRINGEMENT. IN NO EVENT SHALL | |
18 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
19 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
20 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
21 | * OTHER DEALINGS IN THE SOFTWARE. | |
22 | */ | |
23 | #ifndef __DRM_EDID_H__ | |
24 | #define __DRM_EDID_H__ | |
25 | ||
26 | #include <linux/types.h> | |
00147934 | 27 | #include <linux/hdmi.h> |
2cdbfd66 | 28 | #include <drm/drm_mode.h> |
f453ba04 | 29 | |
cdc3d09f | 30 | struct drm_device; |
d9ba1b4c | 31 | struct drm_edid; |
cdc3d09f DV |
32 | struct i2c_adapter; |
33 | ||
f453ba04 DA |
34 | #define EDID_LENGTH 128 |
35 | #define DDC_ADDR 0x50 | |
b49b55bd | 36 | #define DDC_ADDR2 0x52 /* E-DDC 1.2 - where DisplayID can hide */ |
f453ba04 | 37 | |
4d76a221 AJ |
38 | #define CEA_EXT 0x02 |
39 | #define VTB_EXT 0x10 | |
40 | #define DI_EXT 0x40 | |
41 | #define LS_EXT 0x50 | |
42 | #define MI_EXT 0x60 | |
b49b55bd | 43 | #define DISPLAYID_EXT 0x70 |
4d76a221 | 44 | |
f453ba04 DA |
45 | struct est_timings { |
46 | u8 t1; | |
47 | u8 t2; | |
48 | u8 mfg_rsvd; | |
49 | } __attribute__((packed)); | |
50 | ||
0454beab | 51 | /* 00=16:10, 01=4:3, 10=5:4, 11=16:9 */ |
e14cbee4 | 52 | #define EDID_TIMING_ASPECT_SHIFT 6 |
0454beab MD |
53 | #define EDID_TIMING_ASPECT_MASK (0x3 << EDID_TIMING_ASPECT_SHIFT) |
54 | ||
55 | /* need to add 60 */ | |
e14cbee4 | 56 | #define EDID_TIMING_VFREQ_SHIFT 0 |
0454beab MD |
57 | #define EDID_TIMING_VFREQ_MASK (0x3f << EDID_TIMING_VFREQ_SHIFT) |
58 | ||
f453ba04 DA |
59 | struct std_timing { |
60 | u8 hsize; /* need to multiply by 8 then add 248 */ | |
0454beab | 61 | u8 vfreq_aspect; |
f453ba04 DA |
62 | } __attribute__((packed)); |
63 | ||
e14cbee4 MD |
64 | #define DRM_EDID_PT_HSYNC_POSITIVE (1 << 1) |
65 | #define DRM_EDID_PT_VSYNC_POSITIVE (1 << 2) | |
0454beab | 66 | #define DRM_EDID_PT_SEPARATE_SYNC (3 << 3) |
e14cbee4 MD |
67 | #define DRM_EDID_PT_STEREO (1 << 5) |
68 | #define DRM_EDID_PT_INTERLACED (1 << 7) | |
0454beab | 69 | |
f453ba04 DA |
70 | /* If detailed data is pixel timing */ |
71 | struct detailed_pixel_timing { | |
72 | u8 hactive_lo; | |
73 | u8 hblank_lo; | |
0454beab | 74 | u8 hactive_hblank_hi; |
f453ba04 DA |
75 | u8 vactive_lo; |
76 | u8 vblank_lo; | |
0454beab | 77 | u8 vactive_vblank_hi; |
f453ba04 DA |
78 | u8 hsync_offset_lo; |
79 | u8 hsync_pulse_width_lo; | |
0454beab MD |
80 | u8 vsync_offset_pulse_width_lo; |
81 | u8 hsync_vsync_offset_pulse_width_hi; | |
f453ba04 DA |
82 | u8 width_mm_lo; |
83 | u8 height_mm_lo; | |
0454beab | 84 | u8 width_height_mm_hi; |
f453ba04 DA |
85 | u8 hborder; |
86 | u8 vborder; | |
0454beab | 87 | u8 misc; |
f453ba04 DA |
88 | } __attribute__((packed)); |
89 | ||
90 | /* If it's not pixel timing, it'll be one of the below */ | |
91 | struct detailed_data_string { | |
92 | u8 str[13]; | |
93 | } __attribute__((packed)); | |
94 | ||
f1ce9876 MN |
95 | #define DRM_EDID_DEFAULT_GTF_SUPPORT_FLAG 0x00 |
96 | #define DRM_EDID_RANGE_LIMITS_ONLY_FLAG 0x01 | |
97 | #define DRM_EDID_SECONDARY_GTF_SUPPORT_FLAG 0x02 | |
98 | #define DRM_EDID_CVT_SUPPORT_FLAG 0x04 | |
99 | ||
f453ba04 DA |
100 | struct detailed_data_monitor_range { |
101 | u8 min_vfreq; | |
102 | u8 max_vfreq; | |
103 | u8 min_hfreq_khz; | |
104 | u8 max_hfreq_khz; | |
105 | u8 pixel_clock_mhz; /* need to multiply by 10 */ | |
eeefa4be AJ |
106 | u8 flags; |
107 | union { | |
108 | struct { | |
109 | u8 reserved; | |
110 | u8 hfreq_start_khz; /* need to multiply by 2 */ | |
111 | u8 c; /* need to divide by 2 */ | |
112 | __le16 m; | |
113 | u8 k; | |
114 | u8 j; /* need to divide by 2 */ | |
8353e6c6 | 115 | } __attribute__((packed)) gtf2; |
eeefa4be AJ |
116 | struct { |
117 | u8 version; | |
118 | u8 data1; /* high 6 bits: extra clock resolution */ | |
119 | u8 data2; /* plus low 2 of above: max hactive */ | |
120 | u8 supported_aspects; | |
121 | u8 flags; /* preferred aspect and blanking support */ | |
122 | u8 supported_scalings; | |
123 | u8 preferred_refresh; | |
8353e6c6 | 124 | } __attribute__((packed)) cvt; |
47f15561 | 125 | } __attribute__((packed)) formula; |
f453ba04 DA |
126 | } __attribute__((packed)); |
127 | ||
128 | struct detailed_data_wpindex { | |
e14cbee4 | 129 | u8 white_yx_lo; /* Lower 2 bits each */ |
f453ba04 DA |
130 | u8 white_x_hi; |
131 | u8 white_y_hi; | |
132 | u8 gamma; /* need to divide by 100 then add 1 */ | |
133 | } __attribute__((packed)); | |
134 | ||
135 | struct detailed_data_color_point { | |
136 | u8 windex1; | |
137 | u8 wpindex1[3]; | |
138 | u8 windex2; | |
139 | u8 wpindex2[3]; | |
140 | } __attribute__((packed)); | |
141 | ||
9340d8cf AJ |
142 | struct cvt_timing { |
143 | u8 code[3]; | |
144 | } __attribute__((packed)); | |
145 | ||
f453ba04 DA |
146 | struct detailed_non_pixel { |
147 | u8 pad1; | |
148 | u8 type; /* ff=serial, fe=string, fd=monitor range, fc=monitor name | |
149 | fb=color point data, fa=standard timing data, | |
150 | f9=undefined, f8=mfg. reserved */ | |
151 | u8 pad2; | |
152 | union { | |
153 | struct detailed_data_string str; | |
154 | struct detailed_data_monitor_range range; | |
155 | struct detailed_data_wpindex color; | |
96525a2f | 156 | struct std_timing timings[6]; |
9340d8cf | 157 | struct cvt_timing cvt[4]; |
47f15561 | 158 | } __attribute__((packed)) data; |
f453ba04 DA |
159 | } __attribute__((packed)); |
160 | ||
2dbdc52c AJ |
161 | #define EDID_DETAIL_EST_TIMINGS 0xf7 |
162 | #define EDID_DETAIL_CVT_3BYTE 0xf8 | |
163 | #define EDID_DETAIL_COLOR_MGMT_DATA 0xf9 | |
f453ba04 DA |
164 | #define EDID_DETAIL_STD_MODES 0xfa |
165 | #define EDID_DETAIL_MONITOR_CPDATA 0xfb | |
166 | #define EDID_DETAIL_MONITOR_NAME 0xfc | |
167 | #define EDID_DETAIL_MONITOR_RANGE 0xfd | |
168 | #define EDID_DETAIL_MONITOR_STRING 0xfe | |
169 | #define EDID_DETAIL_MONITOR_SERIAL 0xff | |
170 | ||
171 | struct detailed_timing { | |
0454beab | 172 | __le16 pixel_clock; /* need to multiply by 10 KHz */ |
f453ba04 DA |
173 | union { |
174 | struct detailed_pixel_timing pixel_data; | |
175 | struct detailed_non_pixel other_data; | |
47f15561 | 176 | } __attribute__((packed)) data; |
f453ba04 DA |
177 | } __attribute__((packed)); |
178 | ||
e14cbee4 MD |
179 | #define DRM_EDID_INPUT_SERRATION_VSYNC (1 << 0) |
180 | #define DRM_EDID_INPUT_SYNC_ON_GREEN (1 << 1) | |
181 | #define DRM_EDID_INPUT_COMPOSITE_SYNC (1 << 2) | |
0454beab | 182 | #define DRM_EDID_INPUT_SEPARATE_SYNCS (1 << 3) |
e14cbee4 MD |
183 | #define DRM_EDID_INPUT_BLANK_TO_BLACK (1 << 4) |
184 | #define DRM_EDID_INPUT_VIDEO_LEVEL (3 << 5) | |
3b11228b | 185 | #define DRM_EDID_INPUT_DIGITAL (1 << 7) |
382d2af6 VS |
186 | #define DRM_EDID_DIGITAL_DEPTH_MASK (7 << 4) /* 1.4 */ |
187 | #define DRM_EDID_DIGITAL_DEPTH_UNDEF (0 << 4) /* 1.4 */ | |
188 | #define DRM_EDID_DIGITAL_DEPTH_6 (1 << 4) /* 1.4 */ | |
189 | #define DRM_EDID_DIGITAL_DEPTH_8 (2 << 4) /* 1.4 */ | |
190 | #define DRM_EDID_DIGITAL_DEPTH_10 (3 << 4) /* 1.4 */ | |
191 | #define DRM_EDID_DIGITAL_DEPTH_12 (4 << 4) /* 1.4 */ | |
192 | #define DRM_EDID_DIGITAL_DEPTH_14 (5 << 4) /* 1.4 */ | |
193 | #define DRM_EDID_DIGITAL_DEPTH_16 (6 << 4) /* 1.4 */ | |
194 | #define DRM_EDID_DIGITAL_DEPTH_RSVD (7 << 4) /* 1.4 */ | |
195 | #define DRM_EDID_DIGITAL_TYPE_MASK (7 << 0) /* 1.4 */ | |
196 | #define DRM_EDID_DIGITAL_TYPE_UNDEF (0 << 0) /* 1.4 */ | |
197 | #define DRM_EDID_DIGITAL_TYPE_DVI (1 << 0) /* 1.4 */ | |
198 | #define DRM_EDID_DIGITAL_TYPE_HDMI_A (2 << 0) /* 1.4 */ | |
199 | #define DRM_EDID_DIGITAL_TYPE_HDMI_B (3 << 0) /* 1.4 */ | |
200 | #define DRM_EDID_DIGITAL_TYPE_MDDI (4 << 0) /* 1.4 */ | |
201 | #define DRM_EDID_DIGITAL_TYPE_DP (5 << 0) /* 1.4 */ | |
202 | #define DRM_EDID_DIGITAL_DFP_1_X (1 << 0) /* 1.3 */ | |
0454beab | 203 | |
e14cbee4 MD |
204 | #define DRM_EDID_FEATURE_DEFAULT_GTF (1 << 0) |
205 | #define DRM_EDID_FEATURE_PREFERRED_TIMING (1 << 1) | |
206 | #define DRM_EDID_FEATURE_STANDARD_COLOR (1 << 2) | |
da05a5a7 | 207 | /* If analog */ |
0454beab | 208 | #define DRM_EDID_FEATURE_DISPLAY_TYPE (3 << 3) /* 00=mono, 01=rgb, 10=non-rgb, 11=unknown */ |
da05a5a7 JB |
209 | /* If digital */ |
210 | #define DRM_EDID_FEATURE_COLOR_MASK (3 << 3) | |
211 | #define DRM_EDID_FEATURE_RGB (0 << 3) | |
212 | #define DRM_EDID_FEATURE_RGB_YCRCB444 (1 << 3) | |
213 | #define DRM_EDID_FEATURE_RGB_YCRCB422 (2 << 3) | |
214 | #define DRM_EDID_FEATURE_RGB_YCRCB (3 << 3) /* both 4:4:4 and 4:2:2 */ | |
215 | ||
e14cbee4 MD |
216 | #define DRM_EDID_FEATURE_PM_ACTIVE_OFF (1 << 5) |
217 | #define DRM_EDID_FEATURE_PM_SUSPEND (1 << 6) | |
218 | #define DRM_EDID_FEATURE_PM_STANDBY (1 << 7) | |
0454beab | 219 | |
d0c94692 MK |
220 | #define DRM_EDID_HDMI_DC_48 (1 << 6) |
221 | #define DRM_EDID_HDMI_DC_36 (1 << 5) | |
222 | #define DRM_EDID_HDMI_DC_30 (1 << 4) | |
223 | #define DRM_EDID_HDMI_DC_Y444 (1 << 3) | |
224 | ||
e6a9a2c3 | 225 | /* YCBCR 420 deep color modes */ |
9068e02f CT |
226 | #define DRM_EDID_YCBCR420_DC_48 (1 << 2) |
227 | #define DRM_EDID_YCBCR420_DC_36 (1 << 1) | |
228 | #define DRM_EDID_YCBCR420_DC_30 (1 << 0) | |
e6a9a2c3 SS |
229 | #define DRM_EDID_YCBCR420_DC_MASK (DRM_EDID_YCBCR420_DC_48 | \ |
230 | DRM_EDID_YCBCR420_DC_36 | \ | |
231 | DRM_EDID_YCBCR420_DC_30) | |
232 | ||
9bb85a6e SS |
233 | /* HDMI 2.1 additional fields */ |
234 | #define DRM_EDID_MAX_FRL_RATE_MASK 0xf0 | |
235 | #define DRM_EDID_FAPA_START_LOCATION (1 << 0) | |
236 | #define DRM_EDID_ALLM (1 << 1) | |
237 | #define DRM_EDID_FVA (1 << 2) | |
238 | ||
239 | /* Deep Color specific */ | |
240 | #define DRM_EDID_DC_30BIT_420 (1 << 0) | |
241 | #define DRM_EDID_DC_36BIT_420 (1 << 1) | |
242 | #define DRM_EDID_DC_48BIT_420 (1 << 2) | |
243 | ||
244 | /* VRR specific */ | |
245 | #define DRM_EDID_CNMVRR (1 << 3) | |
246 | #define DRM_EDID_CINEMA_VRR (1 << 4) | |
247 | #define DRM_EDID_MDELTA (1 << 5) | |
248 | #define DRM_EDID_VRR_MAX_UPPER_MASK 0xc0 | |
249 | #define DRM_EDID_VRR_MAX_LOWER_MASK 0xff | |
250 | #define DRM_EDID_VRR_MIN_MASK 0x3f | |
251 | ||
252 | /* DSC specific */ | |
253 | #define DRM_EDID_DSC_10BPC (1 << 0) | |
254 | #define DRM_EDID_DSC_12BPC (1 << 1) | |
255 | #define DRM_EDID_DSC_16BPC (1 << 2) | |
256 | #define DRM_EDID_DSC_ALL_BPP (1 << 3) | |
257 | #define DRM_EDID_DSC_NATIVE_420 (1 << 6) | |
258 | #define DRM_EDID_DSC_1P2 (1 << 7) | |
259 | #define DRM_EDID_DSC_MAX_FRL_RATE_MASK 0xf0 | |
260 | #define DRM_EDID_DSC_MAX_SLICES 0xf | |
261 | #define DRM_EDID_DSC_TOTAL_CHUNK_KBYTES 0x3f | |
262 | ||
babc9493 JN |
263 | /* ELD Header Block */ |
264 | #define DRM_ELD_HEADER_BLOCK_SIZE 4 | |
265 | ||
266 | #define DRM_ELD_VER 0 | |
267 | # define DRM_ELD_VER_SHIFT 3 | |
268 | # define DRM_ELD_VER_MASK (0x1f << 3) | |
1b54bdb8 JN |
269 | # define DRM_ELD_VER_CEA861D (2 << 3) /* supports 861D or below */ |
270 | # define DRM_ELD_VER_CANNED (0x1f << 3) | |
babc9493 JN |
271 | |
272 | #define DRM_ELD_BASELINE_ELD_LEN 2 /* in dwords! */ | |
273 | ||
274 | /* ELD Baseline Block for ELD_Ver == 2 */ | |
275 | #define DRM_ELD_CEA_EDID_VER_MNL 4 | |
276 | # define DRM_ELD_CEA_EDID_VER_SHIFT 5 | |
277 | # define DRM_ELD_CEA_EDID_VER_MASK (7 << 5) | |
278 | # define DRM_ELD_CEA_EDID_VER_NONE (0 << 5) | |
279 | # define DRM_ELD_CEA_EDID_VER_CEA861 (1 << 5) | |
280 | # define DRM_ELD_CEA_EDID_VER_CEA861A (2 << 5) | |
281 | # define DRM_ELD_CEA_EDID_VER_CEA861BCD (3 << 5) | |
282 | # define DRM_ELD_MNL_SHIFT 0 | |
283 | # define DRM_ELD_MNL_MASK (0x1f << 0) | |
284 | ||
285 | #define DRM_ELD_SAD_COUNT_CONN_TYPE 5 | |
286 | # define DRM_ELD_SAD_COUNT_SHIFT 4 | |
287 | # define DRM_ELD_SAD_COUNT_MASK (0xf << 4) | |
288 | # define DRM_ELD_CONN_TYPE_SHIFT 2 | |
289 | # define DRM_ELD_CONN_TYPE_MASK (3 << 2) | |
290 | # define DRM_ELD_CONN_TYPE_HDMI (0 << 2) | |
291 | # define DRM_ELD_CONN_TYPE_DP (1 << 2) | |
292 | # define DRM_ELD_SUPPORTS_AI (1 << 1) | |
293 | # define DRM_ELD_SUPPORTS_HDCP (1 << 0) | |
294 | ||
295 | #define DRM_ELD_AUD_SYNCH_DELAY 6 /* in units of 2 ms */ | |
296 | # define DRM_ELD_AUD_SYNCH_DELAY_MAX 0xfa /* 500 ms */ | |
297 | ||
298 | #define DRM_ELD_SPEAKER 7 | |
c82dbe5c | 299 | # define DRM_ELD_SPEAKER_MASK 0x7f |
babc9493 JN |
300 | # define DRM_ELD_SPEAKER_RLRC (1 << 6) |
301 | # define DRM_ELD_SPEAKER_FLRC (1 << 5) | |
302 | # define DRM_ELD_SPEAKER_RC (1 << 4) | |
303 | # define DRM_ELD_SPEAKER_RLR (1 << 3) | |
304 | # define DRM_ELD_SPEAKER_FC (1 << 2) | |
305 | # define DRM_ELD_SPEAKER_LFE (1 << 1) | |
306 | # define DRM_ELD_SPEAKER_FLR (1 << 0) | |
307 | ||
308 | #define DRM_ELD_PORT_ID 8 /* offsets 8..15 inclusive */ | |
309 | # define DRM_ELD_PORT_ID_LEN 8 | |
310 | ||
311 | #define DRM_ELD_MANUFACTURER_NAME0 16 | |
312 | #define DRM_ELD_MANUFACTURER_NAME1 17 | |
313 | ||
314 | #define DRM_ELD_PRODUCT_CODE0 18 | |
315 | #define DRM_ELD_PRODUCT_CODE1 19 | |
316 | ||
317 | #define DRM_ELD_MONITOR_NAME_STRING 20 /* offsets 20..(20+mnl-1) inclusive */ | |
318 | ||
319 | #define DRM_ELD_CEA_SAD(mnl, sad) (20 + (mnl) + 3 * (sad)) | |
320 | ||
f453ba04 DA |
321 | struct edid { |
322 | u8 header[8]; | |
323 | /* Vendor & product info */ | |
324 | u8 mfg_id[2]; | |
325 | u8 prod_code[2]; | |
326 | u32 serial; /* FIXME: byte order */ | |
327 | u8 mfg_week; | |
328 | u8 mfg_year; | |
329 | /* EDID version */ | |
330 | u8 version; | |
331 | u8 revision; | |
332 | /* Display info: */ | |
0454beab | 333 | u8 input; |
f453ba04 DA |
334 | u8 width_cm; |
335 | u8 height_cm; | |
336 | u8 gamma; | |
0454beab | 337 | u8 features; |
f453ba04 DA |
338 | /* Color characteristics */ |
339 | u8 red_green_lo; | |
96275df8 | 340 | u8 blue_white_lo; |
f453ba04 DA |
341 | u8 red_x; |
342 | u8 red_y; | |
343 | u8 green_x; | |
344 | u8 green_y; | |
345 | u8 blue_x; | |
346 | u8 blue_y; | |
347 | u8 white_x; | |
348 | u8 white_y; | |
349 | /* Est. timings and mfg rsvd timings*/ | |
350 | struct est_timings established_timings; | |
351 | /* Standard timings 1-8*/ | |
352 | struct std_timing standard_timings[8]; | |
353 | /* Detailing timings 1-4 */ | |
354 | struct detailed_timing detailed_timings[4]; | |
355 | /* Number of 128 byte ext. blocks */ | |
356 | u8 extensions; | |
357 | /* Checksum */ | |
358 | u8 checksum; | |
359 | } __attribute__((packed)); | |
360 | ||
f453ba04 DA |
361 | #define EDID_PRODUCT_ID(e) ((e)->prod_code[0] | ((e)->prod_code[1] << 8)) |
362 | ||
fe214163 RM |
363 | /* Short Audio Descriptor */ |
364 | struct cea_sad { | |
365 | u8 format; | |
366 | u8 channels; /* max number of channels - 1 */ | |
367 | u8 freq; | |
368 | u8 byte2; /* meaning depends on format */ | |
369 | }; | |
370 | ||
76adaa34 WF |
371 | struct drm_encoder; |
372 | struct drm_connector; | |
0d68b887 | 373 | struct drm_connector_state; |
76adaa34 | 374 | struct drm_display_mode; |
10a85120 | 375 | |
f4e558ec JN |
376 | int drm_edid_to_sad(const struct edid *edid, struct cea_sad **sads); |
377 | int drm_edid_to_speaker_allocation(const struct edid *edid, u8 **sadb); | |
76adaa34 | 378 | int drm_av_sync_delay(struct drm_connector *connector, |
3a818d35 | 379 | const struct drm_display_mode *mode); |
ba34d58c EG |
380 | |
381 | #ifdef CONFIG_DRM_LOAD_EDID_FIRMWARE | |
07c2b84b | 382 | struct edid *drm_load_edid_firmware(struct drm_connector *connector); |
ac6c35a4 JN |
383 | int __drm_set_edid_firmware_path(const char *path); |
384 | int __drm_get_edid_firmware_path(char *buf, size_t bufsize); | |
ba34d58c | 385 | #else |
07c2b84b JN |
386 | static inline struct edid * |
387 | drm_load_edid_firmware(struct drm_connector *connector) | |
ba34d58c | 388 | { |
07c2b84b | 389 | return ERR_PTR(-ENOENT); |
ba34d58c EG |
390 | } |
391 | #endif | |
76adaa34 | 392 | |
536faa45 SL |
393 | bool drm_edid_are_equal(const struct edid *edid1, const struct edid *edid2); |
394 | ||
10a85120 TR |
395 | int |
396 | drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe *frame, | |
192a3aa0 | 397 | const struct drm_connector *connector, |
13d0add3 | 398 | const struct drm_display_mode *mode); |
83dd0008 LD |
399 | int |
400 | drm_hdmi_vendor_infoframe_from_display_mode(struct hdmi_vendor_infoframe *frame, | |
192a3aa0 | 401 | const struct drm_connector *connector, |
83dd0008 | 402 | const struct drm_display_mode *mode); |
0d68b887 | 403 | |
a2ce26f8 VS |
404 | void |
405 | drm_hdmi_avi_infoframe_quant_range(struct hdmi_avi_infoframe *frame, | |
192a3aa0 | 406 | const struct drm_connector *connector, |
779c4c28 | 407 | const struct drm_display_mode *mode, |
1581b2df | 408 | enum hdmi_quantization_range rgb_quant_range); |
10a85120 | 409 | |
babc9493 JN |
410 | /** |
411 | * drm_eld_mnl - Get ELD monitor name length in bytes. | |
412 | * @eld: pointer to an eld memory structure with mnl set | |
413 | */ | |
414 | static inline int drm_eld_mnl(const uint8_t *eld) | |
415 | { | |
416 | return (eld[DRM_ELD_CEA_EDID_VER_MNL] & DRM_ELD_MNL_MASK) >> DRM_ELD_MNL_SHIFT; | |
417 | } | |
418 | ||
1c73d3b1 RK |
419 | /** |
420 | * drm_eld_sad - Get ELD SAD structures. | |
421 | * @eld: pointer to an eld memory structure with sad_count set | |
422 | */ | |
423 | static inline const uint8_t *drm_eld_sad(const uint8_t *eld) | |
424 | { | |
425 | unsigned int ver, mnl; | |
426 | ||
427 | ver = (eld[DRM_ELD_VER] & DRM_ELD_VER_MASK) >> DRM_ELD_VER_SHIFT; | |
428 | if (ver != 2 && ver != 31) | |
429 | return NULL; | |
430 | ||
431 | mnl = drm_eld_mnl(eld); | |
432 | if (mnl > 16) | |
433 | return NULL; | |
434 | ||
435 | return eld + DRM_ELD_CEA_SAD(mnl, 0); | |
436 | } | |
437 | ||
babc9493 JN |
438 | /** |
439 | * drm_eld_sad_count - Get ELD SAD count. | |
440 | * @eld: pointer to an eld memory structure with sad_count set | |
441 | */ | |
442 | static inline int drm_eld_sad_count(const uint8_t *eld) | |
443 | { | |
444 | return (eld[DRM_ELD_SAD_COUNT_CONN_TYPE] & DRM_ELD_SAD_COUNT_MASK) >> | |
445 | DRM_ELD_SAD_COUNT_SHIFT; | |
446 | } | |
447 | ||
448 | /** | |
449 | * drm_eld_calc_baseline_block_size - Calculate baseline block size in bytes | |
450 | * @eld: pointer to an eld memory structure with mnl and sad_count set | |
451 | * | |
452 | * This is a helper for determining the payload size of the baseline block, in | |
453 | * bytes, for e.g. setting the Baseline_ELD_Len field in the ELD header block. | |
454 | */ | |
455 | static inline int drm_eld_calc_baseline_block_size(const uint8_t *eld) | |
456 | { | |
457 | return DRM_ELD_MONITOR_NAME_STRING - DRM_ELD_HEADER_BLOCK_SIZE + | |
458 | drm_eld_mnl(eld) + drm_eld_sad_count(eld) * 3; | |
459 | } | |
460 | ||
461 | /** | |
462 | * drm_eld_size - Get ELD size in bytes | |
463 | * @eld: pointer to a complete eld memory structure | |
464 | * | |
465 | * The returned value does not include the vendor block. It's vendor specific, | |
466 | * and comprises of the remaining bytes in the ELD memory buffer after | |
467 | * drm_eld_size() bytes of header and baseline block. | |
468 | * | |
469 | * The returned value is guaranteed to be a multiple of 4. | |
470 | */ | |
471 | static inline int drm_eld_size(const uint8_t *eld) | |
472 | { | |
473 | return DRM_ELD_HEADER_BLOCK_SIZE + eld[DRM_ELD_BASELINE_ELD_LEN] * 4; | |
474 | } | |
475 | ||
c82dbe5c AP |
476 | /** |
477 | * drm_eld_get_spk_alloc - Get speaker allocation | |
478 | * @eld: pointer to an ELD memory structure | |
479 | * | |
480 | * The returned value is the speakers mask. User has to use %DRM_ELD_SPEAKER | |
481 | * field definitions to identify speakers. | |
482 | */ | |
483 | static inline u8 drm_eld_get_spk_alloc(const uint8_t *eld) | |
484 | { | |
485 | return eld[DRM_ELD_SPEAKER] & DRM_ELD_SPEAKER_MASK; | |
486 | } | |
487 | ||
1aa8ec25 SP |
488 | /** |
489 | * drm_eld_get_conn_type - Get device type hdmi/dp connected | |
490 | * @eld: pointer to an ELD memory structure | |
491 | * | |
492 | * The caller need to use %DRM_ELD_CONN_TYPE_HDMI or %DRM_ELD_CONN_TYPE_DP to | |
493 | * identify the display type connected. | |
494 | */ | |
495 | static inline u8 drm_eld_get_conn_type(const uint8_t *eld) | |
496 | { | |
497 | return eld[DRM_ELD_SAD_COUNT_CONN_TYPE] & DRM_ELD_CONN_TYPE_MASK; | |
498 | } | |
499 | ||
ade1fc91 VS |
500 | /** |
501 | * drm_edid_decode_mfg_id - Decode the manufacturer ID | |
502 | * @mfg_id: The manufacturer ID | |
503 | * @vend: A 4-byte buffer to store the 3-letter vendor string plus a '\0' | |
504 | * termination | |
505 | */ | |
506 | static inline const char *drm_edid_decode_mfg_id(u16 mfg_id, char vend[4]) | |
507 | { | |
508 | vend[0] = '@' + ((mfg_id >> 10) & 0x1f); | |
509 | vend[1] = '@' + ((mfg_id >> 5) & 0x1f); | |
510 | vend[2] = '@' + ((mfg_id >> 0) & 0x1f); | |
511 | vend[3] = '\0'; | |
512 | ||
513 | return vend; | |
514 | } | |
515 | ||
d9f91a10 DA |
516 | /** |
517 | * drm_edid_encode_panel_id - Encode an ID for matching against drm_edid_get_panel_id() | |
7d1be0a0 | 518 | * @vend_chr_0: First character of the vendor string. |
116e5947 DA |
519 | * @vend_chr_1: Second character of the vendor string. |
520 | * @vend_chr_2: Third character of the vendor string. | |
d9f91a10 DA |
521 | * @product_id: The 16-bit product ID. |
522 | * | |
523 | * This is a macro so that it can be calculated at compile time and used | |
524 | * as an initializer. | |
525 | * | |
526 | * For instance: | |
7d1be0a0 | 527 | * drm_edid_encode_panel_id('B', 'O', 'E', 0x2d08) => 0x09e52d08 |
d9f91a10 DA |
528 | * |
529 | * Return: a 32-bit ID per panel. | |
530 | */ | |
7d1be0a0 DA |
531 | #define drm_edid_encode_panel_id(vend_chr_0, vend_chr_1, vend_chr_2, product_id) \ |
532 | ((((u32)(vend_chr_0) - '@') & 0x1f) << 26 | \ | |
533 | (((u32)(vend_chr_1) - '@') & 0x1f) << 21 | \ | |
534 | (((u32)(vend_chr_2) - '@') & 0x1f) << 16 | \ | |
d9f91a10 DA |
535 | ((product_id) & 0xffff)) |
536 | ||
537 | /** | |
538 | * drm_edid_decode_panel_id - Decode a panel ID from drm_edid_encode_panel_id() | |
539 | * @panel_id: The panel ID to decode. | |
540 | * @vend: A 4-byte buffer to store the 3-letter vendor string plus a '\0' | |
541 | * termination | |
542 | * @product_id: The product ID will be returned here. | |
543 | * | |
544 | * For instance, after: | |
545 | * drm_edid_decode_panel_id(0x09e52d08, vend, &product_id) | |
546 | * These will be true: | |
547 | * vend[0] = 'B' | |
548 | * vend[1] = 'O' | |
549 | * vend[2] = 'E' | |
550 | * vend[3] = '\0' | |
551 | * product_id = 0x2d08 | |
552 | */ | |
553 | static inline void drm_edid_decode_panel_id(u32 panel_id, char vend[4], u16 *product_id) | |
554 | { | |
555 | *product_id = (u16)(panel_id & 0xffff); | |
ade1fc91 | 556 | drm_edid_decode_mfg_id(panel_id >> 16, vend); |
d9f91a10 DA |
557 | } |
558 | ||
cdc3d09f | 559 | bool drm_probe_ddc(struct i2c_adapter *adapter); |
18df89fe LPC |
560 | struct edid *drm_do_get_edid(struct drm_connector *connector, |
561 | int (*get_edid_block)(void *data, u8 *buf, unsigned int block, | |
562 | size_t len), | |
563 | void *data); | |
cdc3d09f DV |
564 | struct edid *drm_get_edid(struct drm_connector *connector, |
565 | struct i2c_adapter *adapter); | |
d9f91a10 | 566 | u32 drm_edid_get_panel_id(struct i2c_adapter *adapter); |
cdc3d09f DV |
567 | struct edid *drm_get_edid_switcheroo(struct drm_connector *connector, |
568 | struct i2c_adapter *adapter); | |
569 | struct edid *drm_edid_duplicate(const struct edid *edid); | |
570 | int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid); | |
48eaeb76 | 571 | int drm_add_override_edid_modes(struct drm_connector *connector); |
cdc3d09f DV |
572 | |
573 | u8 drm_match_cea_mode(const struct drm_display_mode *to_match); | |
f4e558ec JN |
574 | bool drm_detect_hdmi_monitor(const struct edid *edid); |
575 | bool drm_detect_monitor_audio(const struct edid *edid); | |
c8127cf0 VS |
576 | enum hdmi_quantization_range |
577 | drm_default_rgb_quant_range(const struct drm_display_mode *mode); | |
cdc3d09f DV |
578 | int drm_add_modes_noedid(struct drm_connector *connector, |
579 | int hdisplay, int vdisplay); | |
580 | void drm_set_preferred_mode(struct drm_connector *connector, | |
581 | int hpref, int vpref); | |
582 | ||
6d987ddd | 583 | int drm_edid_header_is_valid(const void *edid); |
cdc3d09f DV |
584 | bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid, |
585 | bool *edid_corrupt); | |
586 | bool drm_edid_is_valid(struct edid *edid); | |
f4e558ec | 587 | void drm_edid_get_monitor_name(const struct edid *edid, char *name, |
cdc3d09f DV |
588 | int buflen); |
589 | struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev, | |
590 | int hsize, int vsize, int fresh, | |
591 | bool rb); | |
7af655bc VS |
592 | struct drm_display_mode * |
593 | drm_display_mode_from_cea_vic(struct drm_device *dev, | |
594 | u8 video_code); | |
4cc4f09e | 595 | |
d9ba1b4c | 596 | /* Interface based on struct drm_edid */ |
6537f79a JN |
597 | const struct drm_edid *drm_edid_alloc(const void *edid, size_t size); |
598 | const struct drm_edid *drm_edid_dup(const struct drm_edid *drm_edid); | |
599 | void drm_edid_free(const struct drm_edid *drm_edid); | |
600 | const struct drm_edid *drm_edid_read(struct drm_connector *connector); | |
601 | const struct drm_edid *drm_edid_read_ddc(struct drm_connector *connector, | |
602 | struct i2c_adapter *adapter); | |
603 | const struct drm_edid *drm_edid_read_custom(struct drm_connector *connector, | |
604 | int (*read_block)(void *context, u8 *buf, unsigned int block, size_t len), | |
605 | void *context); | |
d9ba1b4c JN |
606 | const u8 *drm_find_edid_extension(const struct drm_edid *drm_edid, |
607 | int ext_id, int *ext_index); | |
7af655bc | 608 | |
f453ba04 | 609 | #endif /* __DRM_EDID_H__ */ |