1 /*
2 * Copyright 2018 Advanced Micro Devices, Inc.
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, sublicense,
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 shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: AMD
23 *
24 */
25
26 #include "mod_info_packet.h"
27 #include "core_types.h"
28 #include "dc_types.h"
29 #include "mod_shared.h"
30 #include "mod_freesync.h"
31 #include "dc.h"
32
33 #define HDMI_INFOFRAME_TYPE_VENDOR 0x81
34
35 // VTEM Byte Offset
36 #define VTEM_PB0 0
37 #define VTEM_PB1 1
38 #define VTEM_PB2 2
39 #define VTEM_PB3 3
40 #define VTEM_PB4 4
41 #define VTEM_PB5 5
42 #define VTEM_PB6 6
43
44 #define VTEM_MD0 7
45 #define VTEM_MD1 8
46 #define VTEM_MD2 9
47 #define VTEM_MD3 10
48
49
50 // VTEM Byte Masks
51 //PB0
52 #define MASK_VTEM_PB0__RESERVED0 0x01
53 #define MASK_VTEM_PB0__SYNC 0x02
54 #define MASK_VTEM_PB0__VFR 0x04
55 #define MASK_VTEM_PB0__AFR 0x08
56 #define MASK_VTEM_PB0__DS_TYPE 0x30
57 //0: Periodic pseudo-static EM Data Set
58 //1: Periodic dynamic EM Data Set
59 //2: Unique EM Data Set
60 //3: Reserved
61 #define MASK_VTEM_PB0__END 0x40
62 #define MASK_VTEM_PB0__NEW 0x80
63
64 //PB1
65 #define MASK_VTEM_PB1__RESERVED1 0xFF
66
67 //PB2
68 #define MASK_VTEM_PB2__ORGANIZATION_ID 0xFF
69 //0: This is a Vendor Specific EM Data Set
70 //1: This EM Data Set is defined by This Specification (HDMI 2.1 r102.clean)
71 //2: This EM Data Set is defined by CTA-861-G
72 //3: This EM Data Set is defined by VESA
73 //PB3
74 #define MASK_VTEM_PB3__DATA_SET_TAG_MSB 0xFF
75 //PB4
76 #define MASK_VTEM_PB4__DATA_SET_TAG_LSB 0xFF
77 //PB5
78 #define MASK_VTEM_PB5__DATA_SET_LENGTH_MSB 0xFF
79 //PB6
80 #define MASK_VTEM_PB6__DATA_SET_LENGTH_LSB 0xFF
81
82
83
84 //PB7-27 (20 bytes):
85 //PB7 = MD0
86 #define MASK_VTEM_MD0__VRR_EN 0x01
87 #define MASK_VTEM_MD0__M_CONST 0x02
88 #define MASK_VTEM_MD0__RESERVED2 0x0C
89 #define MASK_VTEM_MD0__FVA_FACTOR_M1 0xF0
90
91 //MD1
92 #define MASK_VTEM_MD1__BASE_VFRONT 0xFF
93
94 //MD2
95 #define MASK_VTEM_MD2__BASE_REFRESH_RATE_98 0x03
96 #define MASK_VTEM_MD2__RB 0x04
97 #define MASK_VTEM_MD2__RESERVED3 0xF8
98
99 //MD3
100 #define MASK_VTEM_MD3__BASE_REFRESH_RATE_07 0xFF
101
102 enum ColorimetryRGBDP {
103 ColorimetryRGB_DP_sRGB = 0,
104 ColorimetryRGB_DP_AdobeRGB = 3,
105 ColorimetryRGB_DP_P3 = 4,
106 ColorimetryRGB_DP_CustomColorProfile = 5,
107 ColorimetryRGB_DP_ITU_R_BT2020RGB = 6,
108 };
109 enum ColorimetryYCCDP {
110 ColorimetryYCC_DP_ITU601 = 0,
111 ColorimetryYCC_DP_ITU709 = 1,
112 ColorimetryYCC_DP_AdobeYCC = 5,
113 ColorimetryYCC_DP_ITU2020YCC = 6,
114 ColorimetryYCC_DP_ITU2020YCbCr = 7,
115 };
116
117 void mod_build_vsc_infopacket(const struct dc_stream_state *stream,
118 struct dc_info_packet *info_packet)
119 {
120 unsigned int vscPacketRevision = 0;
121 unsigned int i;
122 unsigned int pixelEncoding = 0;
123 unsigned int colorimetryFormat = 0;
124 bool stereo3dSupport = false;
125
126 if (stream->timing.timing_3d_format != TIMING_3D_FORMAT_NONE && stream->view_format != VIEW_3D_FORMAT_NONE) {
127 vscPacketRevision = 1;
128 stereo3dSupport = true;
129 }
130
131 /*VSC packet set to 2 when DP revision >= 1.2*/
132 if (stream->psr_version != 0)
133 vscPacketRevision = 2;
134
135 /* Update to revision 5 for extended colorimetry support for DPCD 1.4+ */
136 if (stream->link->dpcd_caps.dpcd_rev.raw >= 0x14 &&
137 stream->link->dpcd_caps.dprx_feature.bits.VSC_SDP_COLORIMETRY_SUPPORTED)
138 vscPacketRevision = 5;
139
140 /* VSC packet not needed based on the features
141 * supported by this DP display
142 */
143 if (vscPacketRevision == 0)
144 return;
145
146 if (vscPacketRevision == 0x2) {
147 /* Secondary-data Packet ID = 0*/
148 info_packet->hb0 = 0x00;
149 /* 07h - Packet Type Value indicating Video
150 * Stream Configuration packet
151 */
152 info_packet->hb1 = 0x07;
153 /* 02h = VSC SDP supporting 3D stereo and PSR
154 * (applies to eDP v1.3 or higher).
155 */
156 info_packet->hb2 = 0x02;
157 /* 08h = VSC packet supporting 3D stereo + PSR
158 * (HB2 = 02h).
159 */
160 info_packet->hb3 = 0x08;
161
162 for (i = 0; i < 28; i++)
163 info_packet->sb[i] = 0;
164
165 info_packet->valid = true;
166 }
167
168 if (vscPacketRevision == 0x1) {
169
170 info_packet->hb0 = 0x00; // Secondary-data Packet ID = 0
171 info_packet->hb1 = 0x07; // 07h = Packet Type Value indicating Video Stream Configuration packet
172 info_packet->hb2 = 0x01; // 01h = Revision number. VSC SDP supporting 3D stereo only
173 info_packet->hb3 = 0x01; // 01h = VSC SDP supporting 3D stereo only (HB2 = 01h).
174
175 info_packet->valid = true;
176 }
177
178 if (stereo3dSupport) {
179 /* ==============================================================================================================|
180 * A. STEREO 3D
181 * ==============================================================================================================|
182 * VSC Payload (1 byte) From DP1.2 spec
183 *
184 * Bits 3:0 (Stereo Interface Method Code) | Bits 7:4 (Stereo Interface Method Specific Parameter)
185 * -----------------------------------------------------------------------------------------------------
186 * 0 = Non Stereo Video | Must be set to 0x0
187 * -----------------------------------------------------------------------------------------------------
188 * 1 = Frame/Field Sequential | 0x0: L + R view indication based on MISC1 bit 2:1
189 * | 0x1: Right when Stereo Signal = 1
190 * | 0x2: Left when Stereo Signal = 1
191 * | (others reserved)
192 * -----------------------------------------------------------------------------------------------------
193 * 2 = Stacked Frame | 0x0: Left view is on top and right view on bottom
194 * | (others reserved)
195 * -----------------------------------------------------------------------------------------------------
196 * 3 = Pixel Interleaved | 0x0: horiz interleaved, right view pixels on even lines
197 * | 0x1: horiz interleaved, right view pixels on odd lines
198 * | 0x2: checker board, start with left view pixel
199 * | 0x3: vertical interleaved, start with left view pixels
200 * | 0x4: vertical interleaved, start with right view pixels
201 * | (others reserved)
202 * -----------------------------------------------------------------------------------------------------
203 * 4 = Side-by-side | 0x0: left half represents left eye view
204 * | 0x1: left half represents right eye view
205 */
206 switch (stream->timing.timing_3d_format) {
207 case TIMING_3D_FORMAT_HW_FRAME_PACKING:
208 case TIMING_3D_FORMAT_SW_FRAME_PACKING:
209 case TIMING_3D_FORMAT_TOP_AND_BOTTOM:
210 case TIMING_3D_FORMAT_TB_SW_PACKED:
211 info_packet->sb[0] = 0x02; // Stacked Frame, Left view is on top and right view on bottom.
212 break;
213 case TIMING_3D_FORMAT_DP_HDMI_INBAND_FA:
214 case TIMING_3D_FORMAT_INBAND_FA:
215 info_packet->sb[0] = 0x01; // Frame/Field Sequential, L + R view indication based on MISC1 bit 2:1
216 break;
217 case TIMING_3D_FORMAT_SIDE_BY_SIDE:
218 case TIMING_3D_FORMAT_SBS_SW_PACKED:
219 info_packet->sb[0] = 0x04; // Side-by-side
220 break;
221 default:
222 info_packet->sb[0] = 0x00; // No Stereo Video, Shall be cleared to 0x0.
223 break;
224 }
225
226 }
227
228 /* 05h = VSC SDP supporting 3D stereo, PSR2, and Pixel Encoding/Colorimetry Format indication.
229 * Added in DP1.3, a DP Source device is allowed to indicate the pixel encoding/colorimetry
230 * format to the DP Sink device with VSC SDP only when the DP Sink device supports it
231 * (i.e., VSC_SDP_EXTENSION_FOR_COLORIMETRY_SUPPORTED bit in the DPRX_FEATURE_ENUMERATION_LIST
232 * register (DPCD Address 02210h, bit 3) is set to 1).
233 * (Requires VSC_SDP_EXTENSION_FOR_COLORIMETRY_SUPPORTED bit set to 1 in DPCD 02210h. This
234 * DPCD register is exposed in the new Extended Receiver Capability field for DPCD Rev. 1.4
235 * (and higher). When MISC1. bit 6. is Set to 1, a Source device uses a VSC SDP to indicate
236 * the Pixel Encoding/Colorimetry Format and that a Sink device must ignore MISC1, bit 7, and
237 * MISC0, bits 7:1 (MISC1, bit 7. and MISC0, bits 7:1 become "don't care").)
238 */
239 if (vscPacketRevision == 0x5) {
240 /* Secondary-data Packet ID = 0 */
241 info_packet->hb0 = 0x00;
242 /* 07h - Packet Type Value indicating Video Stream Configuration packet */
243 info_packet->hb1 = 0x07;
244 /* 05h = VSC SDP supporting 3D stereo, PSR2, and Pixel Encoding/Colorimetry Format indication. */
245 info_packet->hb2 = 0x05;
246 /* 13h = VSC SDP supporting 3D stereo, + PSR2, + Pixel Encoding/Colorimetry Format indication (HB2 = 05h). */
247 info_packet->hb3 = 0x13;
248
249 info_packet->valid = true;
250
251 /* Set VSC SDP fields for pixel encoding and colorimetry format from DP 1.3 specs
252 * Data Bytes DB 18~16
253 * Bits 3:0 (Colorimetry Format) | Bits 7:4 (Pixel Encoding)
254 * ----------------------------------------------------------------------------------------------------
255 * 0x0 = sRGB | 0 = RGB
256 * 0x1 = RGB Wide Gamut Fixed Point
257 * 0x2 = RGB Wide Gamut Floating Point
258 * 0x3 = AdobeRGB
259 * 0x4 = DCI-P3
260 * 0x5 = CustomColorProfile
261 * (others reserved)
262 * ----------------------------------------------------------------------------------------------------
263 * 0x0 = ITU-R BT.601 | 1 = YCbCr444
264 * 0x1 = ITU-R BT.709
265 * 0x2 = xvYCC601
266 * 0x3 = xvYCC709
267 * 0x4 = sYCC601
268 * 0x5 = AdobeYCC601
269 * 0x6 = ITU-R BT.2020 Y'cC'bcC'rc
270 * 0x7 = ITU-R BT.2020 Y'C'bC'r
271 * (others reserved)
272 * ----------------------------------------------------------------------------------------------------
273 * 0x0 = ITU-R BT.601 | 2 = YCbCr422
274 * 0x1 = ITU-R BT.709
275 * 0x2 = xvYCC601
276 * 0x3 = xvYCC709
277 * 0x4 = sYCC601
278 * 0x5 = AdobeYCC601
279 * 0x6 = ITU-R BT.2020 Y'cC'bcC'rc
280 * 0x7 = ITU-R BT.2020 Y'C'bC'r
281 * (others reserved)
282 * ----------------------------------------------------------------------------------------------------
283 * 0x0 = ITU-R BT.601 | 3 = YCbCr420
284 * 0x1 = ITU-R BT.709
285 * 0x2 = xvYCC601
286 * 0x3 = xvYCC709
287 * 0x4 = sYCC601
288 * 0x5 = AdobeYCC601
289 * 0x6 = ITU-R BT.2020 Y'cC'bcC'rc
290 * 0x7 = ITU-R BT.2020 Y'C'bC'r
291 * (others reserved)
292 * ----------------------------------------------------------------------------------------------------
293 * 0x0 =DICOM Part14 Grayscale | 4 = Yonly
294 * Display Function
295 * (others reserved)
296 */
297
298 /* Set Pixel Encoding */
299 switch (stream->timing.pixel_encoding) {
300 case PIXEL_ENCODING_RGB:
301 pixelEncoding = 0x0; /* RGB = 0h */
302 break;
303 case PIXEL_ENCODING_YCBCR444:
304 pixelEncoding = 0x1; /* YCbCr444 = 1h */
305 break;
306 case PIXEL_ENCODING_YCBCR422:
307 pixelEncoding = 0x2; /* YCbCr422 = 2h */
308 break;
309 case PIXEL_ENCODING_YCBCR420:
310 pixelEncoding = 0x3; /* YCbCr420 = 3h */
311 break;
312 default:
313 pixelEncoding = 0x0; /* default RGB = 0h */
314 break;
315 }
316
317 /* Set Colorimetry format based on pixel encoding */
318 switch (stream->timing.pixel_encoding) {
319 case PIXEL_ENCODING_RGB:
320 if ((stream->output_color_space == COLOR_SPACE_SRGB) ||
321 (stream->output_color_space == COLOR_SPACE_SRGB_LIMITED))
322 colorimetryFormat = ColorimetryRGB_DP_sRGB;
323 else if (stream->output_color_space == COLOR_SPACE_ADOBERGB)
324 colorimetryFormat = ColorimetryRGB_DP_AdobeRGB;
325 else if ((stream->output_color_space == COLOR_SPACE_2020_RGB_FULLRANGE) ||
326 (stream->output_color_space == COLOR_SPACE_2020_RGB_LIMITEDRANGE))
327 colorimetryFormat = ColorimetryRGB_DP_ITU_R_BT2020RGB;
328 break;
329
330 case PIXEL_ENCODING_YCBCR444:
331 case PIXEL_ENCODING_YCBCR422:
332 case PIXEL_ENCODING_YCBCR420:
333 /* Note: xvYCC probably not supported correctly here on DP since colorspace translation
334 * loses distinction between BT601 vs xvYCC601 in translation
335 */
336 if (stream->output_color_space == COLOR_SPACE_YCBCR601)
337 colorimetryFormat = ColorimetryYCC_DP_ITU601;
338 else if (stream->output_color_space == COLOR_SPACE_YCBCR709)
339 colorimetryFormat = ColorimetryYCC_DP_ITU709;
340 else if (stream->output_color_space == COLOR_SPACE_ADOBERGB)
341 colorimetryFormat = ColorimetryYCC_DP_AdobeYCC;
342 else if (stream->output_color_space == COLOR_SPACE_2020_YCBCR)
343 colorimetryFormat = ColorimetryYCC_DP_ITU2020YCbCr;
344 break;
345
346 default:
347 colorimetryFormat = ColorimetryRGB_DP_sRGB;
348 break;
349 }
350
351 info_packet->sb[16] = (pixelEncoding << 4) | colorimetryFormat;
352
353 /* Set color depth */
354 switch (stream->timing.display_color_depth) {
355 case COLOR_DEPTH_666:
356 /* NOTE: This is actually not valid for YCbCr pixel encoding to have 6 bpc
357 * as of DP1.4 spec, but value of 0 probably reserved here for potential future use.
358 */
359 info_packet->sb[17] = 0;
360 break;
361 case COLOR_DEPTH_888:
362 info_packet->sb[17] = 1;
363 break;
364 case COLOR_DEPTH_101010:
365 info_packet->sb[17] = 2;
366 break;
367 case COLOR_DEPTH_121212:
368 info_packet->sb[17] = 3;
369 break;
370 /*case COLOR_DEPTH_141414: -- NO SUCH FORMAT IN DP SPEC */
371 case COLOR_DEPTH_161616:
372 info_packet->sb[17] = 4;
373 break;
374 default:
375 info_packet->sb[17] = 0;
376 break;
377 }
378
379 /* all YCbCr are always limited range */
380 if ((stream->output_color_space == COLOR_SPACE_SRGB_LIMITED) ||
381 (stream->output_color_space == COLOR_SPACE_2020_RGB_LIMITEDRANGE) ||
382 (pixelEncoding != 0x0)) {
383 info_packet->sb[17] |= 0x80; /* DB17 bit 7 set to 1 for CEA timing. */
384 }
385
386 /* Content Type (Bits 2:0)
387 * 0 = Not defined.
388 * 1 = Graphics.
389 * 2 = Photo.
390 * 3 = Video.
391 * 4 = Game.
392 */
393 info_packet->sb[18] = 0;
394 }
395
396 }
397