drivers/gpu/drm/amd/display/modules/info_packet/info_packet.c

   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