1 /* $NetBSD: dc_dp_types.h,v 1.2 2021/12/18 23:45:00 riastradh Exp $ */ 2 3 /* 4 * Copyright 2016 Advanced Micro Devices, Inc. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 * 24 * Authors: AMD 25 * 26 */ 27 28 #ifndef DC_DP_TYPES_H 29 #define DC_DP_TYPES_H 30 31 #include "os_types.h" 32 33 enum dc_lane_count { 34 LANE_COUNT_UNKNOWN = 0, 35 LANE_COUNT_ONE = 1, 36 LANE_COUNT_TWO = 2, 37 LANE_COUNT_FOUR = 4, 38 LANE_COUNT_EIGHT = 8, 39 LANE_COUNT_DP_MAX = LANE_COUNT_FOUR 40 }; 41 42 /* This is actually a reference clock (27MHz) multiplier 43 * 162MBps bandwidth for 1.62GHz like rate, 44 * 270MBps for 2.70GHz, 45 * 324MBps for 3.24Ghz, 46 * 540MBps for 5.40GHz 47 * 810MBps for 8.10GHz 48 */ 49 enum dc_link_rate { 50 LINK_RATE_UNKNOWN = 0, 51 LINK_RATE_LOW = 0x06, // Rate_1 (RBR) - 1.62 Gbps/Lane 52 LINK_RATE_RATE_2 = 0x08, // Rate_2 - 2.16 Gbps/Lane 53 LINK_RATE_RATE_3 = 0x09, // Rate_3 - 2.43 Gbps/Lane 54 LINK_RATE_HIGH = 0x0A, // Rate_4 (HBR) - 2.70 Gbps/Lane 55 LINK_RATE_RBR2 = 0x0C, // Rate_5 (RBR2)- 3.24 Gbps/Lane 56 LINK_RATE_RATE_6 = 0x10, // Rate_6 - 4.32 Gbps/Lane 57 LINK_RATE_HIGH2 = 0x14, // Rate_7 (HBR2)- 5.40 Gbps/Lane 58 LINK_RATE_HIGH3 = 0x1E // Rate_8 (HBR3)- 8.10 Gbps/Lane 59 }; 60 61 enum dc_link_spread { 62 LINK_SPREAD_DISABLED = 0x00, 63 /* 0.5 % downspread 30 kHz */ 64 LINK_SPREAD_05_DOWNSPREAD_30KHZ = 0x10, 65 /* 0.5 % downspread 33 kHz */ 66 LINK_SPREAD_05_DOWNSPREAD_33KHZ = 0x11 67 }; 68 69 enum dc_voltage_swing { 70 VOLTAGE_SWING_LEVEL0 = 0, /* direct HW translation! */ 71 VOLTAGE_SWING_LEVEL1, 72 VOLTAGE_SWING_LEVEL2, 73 VOLTAGE_SWING_LEVEL3, 74 VOLTAGE_SWING_MAX_LEVEL = VOLTAGE_SWING_LEVEL3 75 }; 76 77 enum dc_pre_emphasis { 78 PRE_EMPHASIS_DISABLED = 0, /* direct HW translation! */ 79 PRE_EMPHASIS_LEVEL1, 80 PRE_EMPHASIS_LEVEL2, 81 PRE_EMPHASIS_LEVEL3, 82 PRE_EMPHASIS_MAX_LEVEL = PRE_EMPHASIS_LEVEL3 83 }; 84 /* Post Cursor 2 is optional for transmitter 85 * and it applies only to the main link operating at HBR2 86 */ 87 enum dc_post_cursor2 { 88 POST_CURSOR2_DISABLED = 0, /* direct HW translation! */ 89 POST_CURSOR2_LEVEL1, 90 POST_CURSOR2_LEVEL2, 91 POST_CURSOR2_LEVEL3, 92 POST_CURSOR2_MAX_LEVEL = POST_CURSOR2_LEVEL3, 93 }; 94 95 enum dc_dp_training_pattern { 96 DP_TRAINING_PATTERN_SEQUENCE_1 = 0, 97 DP_TRAINING_PATTERN_SEQUENCE_2, 98 DP_TRAINING_PATTERN_SEQUENCE_3, 99 DP_TRAINING_PATTERN_SEQUENCE_4, 100 }; 101 102 struct dc_link_settings { 103 enum dc_lane_count lane_count; 104 enum dc_link_rate link_rate; 105 enum dc_link_spread link_spread; 106 bool use_link_rate_set; 107 uint8_t link_rate_set; 108 }; 109 110 struct dc_lane_settings { 111 enum dc_voltage_swing VOLTAGE_SWING; 112 enum dc_pre_emphasis PRE_EMPHASIS; 113 enum dc_post_cursor2 POST_CURSOR2; 114 }; 115 116 struct dc_link_training_settings { 117 struct dc_link_settings link; 118 struct dc_lane_settings lane_settings[LANE_COUNT_DP_MAX]; 119 }; 120 121 struct dc_link_training_overrides { 122 enum dc_voltage_swing *voltage_swing; 123 enum dc_pre_emphasis *pre_emphasis; 124 enum dc_post_cursor2 *post_cursor2; 125 126 uint16_t *cr_pattern_time; 127 uint16_t *eq_pattern_time; 128 enum dc_dp_training_pattern *pattern_for_eq; 129 130 enum dc_link_spread *downspread; 131 bool *alternate_scrambler_reset; 132 bool *enhanced_framing; 133 bool *mst_enable; 134 bool *fec_enable; 135 }; 136 137 union dpcd_rev { 138 struct { 139 uint8_t MINOR:4; 140 uint8_t MAJOR:4; 141 } bits; 142 uint8_t raw; 143 }; 144 145 union max_lane_count { 146 struct { 147 uint8_t MAX_LANE_COUNT:5; 148 uint8_t POST_LT_ADJ_REQ_SUPPORTED:1; 149 uint8_t TPS3_SUPPORTED:1; 150 uint8_t ENHANCED_FRAME_CAP:1; 151 } bits; 152 uint8_t raw; 153 }; 154 155 union max_down_spread { 156 struct { 157 uint8_t MAX_DOWN_SPREAD:1; 158 uint8_t RESERVED:5; 159 uint8_t NO_AUX_HANDSHAKE_LINK_TRAINING:1; 160 uint8_t TPS4_SUPPORTED:1; 161 } bits; 162 uint8_t raw; 163 }; 164 165 union mstm_cap { 166 struct { 167 uint8_t MST_CAP:1; 168 uint8_t RESERVED:7; 169 } bits; 170 uint8_t raw; 171 }; 172 173 union lane_count_set { 174 struct { 175 uint8_t LANE_COUNT_SET:5; 176 uint8_t POST_LT_ADJ_REQ_GRANTED:1; 177 uint8_t RESERVED:1; 178 uint8_t ENHANCED_FRAMING:1; 179 } bits; 180 uint8_t raw; 181 }; 182 183 union lane_status { 184 struct { 185 uint8_t CR_DONE_0:1; 186 uint8_t CHANNEL_EQ_DONE_0:1; 187 uint8_t SYMBOL_LOCKED_0:1; 188 uint8_t RESERVED0:1; 189 uint8_t CR_DONE_1:1; 190 uint8_t CHANNEL_EQ_DONE_1:1; 191 uint8_t SYMBOL_LOCKED_1:1; 192 uint8_t RESERVED_1:1; 193 } bits; 194 uint8_t raw; 195 }; 196 197 union device_service_irq { 198 struct { 199 uint8_t REMOTE_CONTROL_CMD_PENDING:1; 200 uint8_t AUTOMATED_TEST:1; 201 uint8_t CP_IRQ:1; 202 uint8_t MCCS_IRQ:1; 203 uint8_t DOWN_REP_MSG_RDY:1; 204 uint8_t UP_REQ_MSG_RDY:1; 205 uint8_t SINK_SPECIFIC:1; 206 uint8_t reserved:1; 207 } bits; 208 uint8_t raw; 209 }; 210 211 union sink_count { 212 struct { 213 uint8_t SINK_COUNT:6; 214 uint8_t CPREADY:1; 215 uint8_t RESERVED:1; 216 } bits; 217 uint8_t raw; 218 }; 219 220 union lane_align_status_updated { 221 struct { 222 uint8_t INTERLANE_ALIGN_DONE:1; 223 uint8_t POST_LT_ADJ_REQ_IN_PROGRESS:1; 224 uint8_t RESERVED:4; 225 uint8_t DOWNSTREAM_PORT_STATUS_CHANGED:1; 226 uint8_t LINK_STATUS_UPDATED:1; 227 } bits; 228 uint8_t raw; 229 }; 230 231 union lane_adjust { 232 struct { 233 uint8_t VOLTAGE_SWING_LANE:2; 234 uint8_t PRE_EMPHASIS_LANE:2; 235 uint8_t RESERVED:4; 236 } bits; 237 uint8_t raw; 238 }; 239 240 union dpcd_training_pattern { 241 struct { 242 uint8_t TRAINING_PATTERN_SET:4; 243 uint8_t RECOVERED_CLOCK_OUT_EN:1; 244 uint8_t SCRAMBLING_DISABLE:1; 245 uint8_t SYMBOL_ERROR_COUNT_SEL:2; 246 } v1_4; 247 struct { 248 uint8_t TRAINING_PATTERN_SET:2; 249 uint8_t LINK_QUAL_PATTERN_SET:2; 250 uint8_t RESERVED:4; 251 } v1_3; 252 uint8_t raw; 253 }; 254 255 /* Training Lane is used to configure downstream DP device's voltage swing 256 and pre-emphasis levels*/ 257 /* The DPCD addresses are from 0x103 to 0x106*/ 258 union dpcd_training_lane { 259 struct { 260 uint8_t VOLTAGE_SWING_SET:2; 261 uint8_t MAX_SWING_REACHED:1; 262 uint8_t PRE_EMPHASIS_SET:2; 263 uint8_t MAX_PRE_EMPHASIS_REACHED:1; 264 uint8_t RESERVED:2; 265 } bits; 266 uint8_t raw; 267 }; 268 269 /* TMDS-converter related */ 270 union dwnstream_port_caps_byte0 { 271 struct { 272 uint8_t DWN_STRM_PORTX_TYPE:3; 273 uint8_t DWN_STRM_PORTX_HPD:1; 274 uint8_t RESERVERD:4; 275 } bits; 276 uint8_t raw; 277 }; 278 279 /* these are the detailed types stored at DWN_STRM_PORTX_CAP (00080h)*/ 280 enum dpcd_downstream_port_detailed_type { 281 DOWN_STREAM_DETAILED_DP = 0, 282 DOWN_STREAM_DETAILED_VGA, 283 DOWN_STREAM_DETAILED_DVI, 284 DOWN_STREAM_DETAILED_HDMI, 285 DOWN_STREAM_DETAILED_NONDDC,/* has no EDID (TV,CV)*/ 286 DOWN_STREAM_DETAILED_DP_PLUS_PLUS 287 }; 288 289 union dwnstream_port_caps_byte2 { 290 struct { 291 uint8_t MAX_BITS_PER_COLOR_COMPONENT:2; 292 uint8_t RESERVED:6; 293 } bits; 294 uint8_t raw; 295 }; 296 297 union dp_downstream_port_present { 298 uint8_t byte; 299 struct { 300 uint8_t PORT_PRESENT:1; 301 uint8_t PORT_TYPE:2; 302 uint8_t FMT_CONVERSION:1; 303 uint8_t DETAILED_CAPS:1; 304 uint8_t RESERVED:3; 305 } fields; 306 }; 307 308 union dwnstream_port_caps_byte3_dvi { 309 struct { 310 uint8_t RESERVED1:1; 311 uint8_t DUAL_LINK:1; 312 uint8_t HIGH_COLOR_DEPTH:1; 313 uint8_t RESERVED2:5; 314 } bits; 315 uint8_t raw; 316 }; 317 318 union dwnstream_port_caps_byte3_hdmi { 319 struct { 320 uint8_t FRAME_SEQ_TO_FRAME_PACK:1; 321 uint8_t YCrCr422_PASS_THROUGH:1; 322 uint8_t YCrCr420_PASS_THROUGH:1; 323 uint8_t YCrCr422_CONVERSION:1; 324 uint8_t YCrCr420_CONVERSION:1; 325 uint8_t RESERVED:3; 326 } bits; 327 uint8_t raw; 328 }; 329 330 /*4-byte structure for detailed capabilities of a down-stream port 331 (DP-to-TMDS converter).*/ 332 union dwnstream_portxcaps { 333 struct { 334 union dwnstream_port_caps_byte0 byte0; 335 unsigned char max_TMDS_clock; //byte1 336 union dwnstream_port_caps_byte2 byte2; 337 338 union { 339 union dwnstream_port_caps_byte3_dvi byteDVI; 340 union dwnstream_port_caps_byte3_hdmi byteHDMI; 341 } byte3; 342 } bytes; 343 344 unsigned char raw[4]; 345 }; 346 347 union downstream_port { 348 struct { 349 unsigned char present:1; 350 unsigned char type:2; 351 unsigned char format_conv:1; 352 unsigned char detailed_caps:1; 353 unsigned char reserved:3; 354 } bits; 355 unsigned char raw; 356 }; 357 358 359 union sink_status { 360 struct { 361 uint8_t RX_PORT0_STATUS:1; 362 uint8_t RX_PORT1_STATUS:1; 363 uint8_t RESERVED:6; 364 } bits; 365 uint8_t raw; 366 }; 367 368 /*6-byte structure corresponding to 6 registers (200h-205h) 369 read during handling of HPD-IRQ*/ 370 union hpd_irq_data { 371 struct { 372 union sink_count sink_cnt;/* 200h */ 373 union device_service_irq device_service_irq;/* 201h */ 374 union lane_status lane01_status;/* 202h */ 375 union lane_status lane23_status;/* 203h */ 376 union lane_align_status_updated lane_status_updated;/* 204h */ 377 union sink_status sink_status; 378 } bytes; 379 uint8_t raw[6]; 380 }; 381 382 union down_stream_port_count { 383 struct { 384 uint8_t DOWN_STR_PORT_COUNT:4; 385 uint8_t RESERVED:2; /*Bits 5:4 = RESERVED. Read all 0s.*/ 386 /*Bit 6 = MSA_TIMING_PAR_IGNORED 387 0 = Sink device requires the MSA timing parameters 388 1 = Sink device is capable of rendering incoming video 389 stream without MSA timing parameters*/ 390 uint8_t IGNORE_MSA_TIMING_PARAM:1; 391 /*Bit 7 = OUI Support 392 0 = OUI not supported 393 1 = OUI supported 394 (OUI and Device Identification mandatory for DP 1.2)*/ 395 uint8_t OUI_SUPPORT:1; 396 } bits; 397 uint8_t raw; 398 }; 399 400 union down_spread_ctrl { 401 struct { 402 uint8_t RESERVED1:4;/* Bit 3:0 = RESERVED. Read all 0s*/ 403 /* Bits 4 = SPREAD_AMP. Spreading amplitude 404 0 = Main link signal is not downspread 405 1 = Main link signal is downspread <= 0.5% 406 with frequency in the range of 30kHz ~ 33kHz*/ 407 uint8_t SPREAD_AMP:1; 408 uint8_t RESERVED2:2;/*Bit 6:5 = RESERVED. Read all 0s*/ 409 /*Bit 7 = MSA_TIMING_PAR_IGNORE_EN 410 0 = Source device will send valid data for the MSA Timing Params 411 1 = Source device may send invalid data for these MSA Timing Params*/ 412 uint8_t IGNORE_MSA_TIMING_PARAM:1; 413 } bits; 414 uint8_t raw; 415 }; 416 417 union dpcd_edp_config { 418 struct { 419 uint8_t PANEL_MODE_EDP:1; 420 uint8_t FRAMING_CHANGE_ENABLE:1; 421 uint8_t RESERVED:5; 422 uint8_t PANEL_SELF_TEST_ENABLE:1; 423 } bits; 424 uint8_t raw; 425 }; 426 427 struct dp_device_vendor_id { 428 uint8_t ieee_oui[3];/*24-bit IEEE OUI*/ 429 uint8_t ieee_device_id[6];/*usually 6-byte ASCII name*/ 430 }; 431 432 struct dp_sink_hw_fw_revision { 433 uint8_t ieee_hw_rev; 434 uint8_t ieee_fw_rev[2]; 435 }; 436 437 /*DPCD register of DP receiver capability field bits-*/ 438 union edp_configuration_cap { 439 struct { 440 uint8_t ALT_SCRAMBLER_RESET:1; 441 uint8_t FRAMING_CHANGE:1; 442 uint8_t RESERVED:1; 443 uint8_t DPCD_DISPLAY_CONTROL_CAPABLE:1; 444 uint8_t RESERVED2:4; 445 } bits; 446 uint8_t raw; 447 }; 448 449 union dprx_feature { 450 struct { 451 uint8_t GTC_CAP:1; // bit 0: DP 1.3+ 452 uint8_t SST_SPLIT_SDP_CAP:1; // bit 1: DP 1.4 453 uint8_t AV_SYNC_CAP:1; // bit 2: DP 1.3+ 454 uint8_t VSC_SDP_COLORIMETRY_SUPPORTED:1; // bit 3: DP 1.3+ 455 uint8_t VSC_EXT_VESA_SDP_SUPPORTED:1; // bit 4: DP 1.4 456 uint8_t VSC_EXT_VESA_SDP_CHAINING_SUPPORTED:1; // bit 5: DP 1.4 457 uint8_t VSC_EXT_CEA_SDP_SUPPORTED:1; // bit 6: DP 1.4 458 uint8_t VSC_EXT_CEA_SDP_CHAINING_SUPPORTED:1; // bit 7: DP 1.4 459 } bits; 460 uint8_t raw; 461 }; 462 463 union training_aux_rd_interval { 464 struct { 465 uint8_t TRAINIG_AUX_RD_INTERVAL:7; 466 uint8_t EXT_RECEIVER_CAP_FIELD_PRESENT:1; 467 } bits; 468 uint8_t raw; 469 }; 470 471 /* Automated test structures */ 472 union test_request { 473 struct { 474 uint8_t LINK_TRAINING :1; 475 uint8_t LINK_TEST_PATTRN :1; 476 uint8_t EDID_READ :1; 477 uint8_t PHY_TEST_PATTERN :1; 478 uint8_t RESERVED :1; 479 uint8_t AUDIO_TEST_PATTERN :1; 480 uint8_t TEST_AUDIO_DISABLED_VIDEO :1; 481 } bits; 482 uint8_t raw; 483 }; 484 485 union test_response { 486 struct { 487 uint8_t ACK :1; 488 uint8_t NO_ACK :1; 489 uint8_t EDID_CHECKSUM_WRITE:1; 490 uint8_t RESERVED :5; 491 } bits; 492 uint8_t raw; 493 }; 494 495 union phy_test_pattern { 496 struct { 497 /* DpcdPhyTestPatterns. This field is 2 bits for DP1.1 498 * and 3 bits for DP1.2. 499 */ 500 uint8_t PATTERN :3; 501 /* BY speci, bit7:2 is 0 for DP1.1. */ 502 uint8_t RESERVED :5; 503 } bits; 504 uint8_t raw; 505 }; 506 507 /* States of Compliance Test Specification (CTS DP1.2). */ 508 union compliance_test_state { 509 struct { 510 unsigned char STEREO_3D_RUNNING : 1; 511 unsigned char RESERVED : 7; 512 } bits; 513 unsigned char raw; 514 }; 515 516 union link_test_pattern { 517 struct { 518 /* dpcd_link_test_patterns */ 519 unsigned char PATTERN :2; 520 unsigned char RESERVED:6; 521 } bits; 522 unsigned char raw; 523 }; 524 525 union test_misc { 526 struct dpcd_test_misc_bits { 527 unsigned char SYNC_CLOCK :1; 528 /* dpcd_test_color_format */ 529 unsigned char CLR_FORMAT :2; 530 /* dpcd_test_dyn_range */ 531 unsigned char DYN_RANGE :1; 532 unsigned char YCBCR_COEFS :1; 533 /* dpcd_test_bit_depth */ 534 unsigned char BPC :3; 535 } bits; 536 unsigned char raw; 537 }; 538 539 union audio_test_mode { 540 struct { 541 unsigned char sampling_rate :4; 542 unsigned char channel_count :4; 543 } bits; 544 unsigned char raw; 545 }; 546 547 union audio_test_pattern_period { 548 struct { 549 unsigned char pattern_period :4; 550 unsigned char reserved :4; 551 } bits; 552 unsigned char raw; 553 }; 554 555 struct audio_test_pattern_type { 556 unsigned char value; 557 }; 558 559 struct dp_audio_test_data_flags { 560 uint8_t test_requested :1; 561 uint8_t disable_video :1; 562 }; 563 564 struct dp_audio_test_data { 565 566 struct dp_audio_test_data_flags flags; 567 uint8_t sampling_rate; 568 uint8_t channel_count; 569 uint8_t pattern_type; 570 uint8_t pattern_period[8]; 571 }; 572 573 /* FEC capability DPCD register field bits-*/ 574 union dpcd_fec_capability { 575 struct { 576 uint8_t FEC_CAPABLE:1; 577 uint8_t UNCORRECTED_BLOCK_ERROR_COUNT_CAPABLE:1; 578 uint8_t CORRECTED_BLOCK_ERROR_COUNT_CAPABLE:1; 579 uint8_t BIT_ERROR_COUNT_CAPABLE:1; 580 uint8_t RESERVED:4; 581 } bits; 582 uint8_t raw; 583 }; 584 585 /* DSC capability DPCD register field bits-*/ 586 struct dpcd_dsc_support { 587 uint8_t DSC_SUPPORT :1; 588 uint8_t DSC_PASSTHROUGH_SUPPORT :1; 589 uint8_t RESERVED :6; 590 }; 591 592 struct dpcd_dsc_algorithm_revision { 593 uint8_t DSC_VERSION_MAJOR :4; 594 uint8_t DSC_VERSION_MINOR :4; 595 }; 596 597 struct dpcd_dsc_rc_buffer_block_size { 598 uint8_t RC_BLOCK_BUFFER_SIZE :2; 599 uint8_t RESERVED :6; 600 }; 601 602 struct dpcd_dsc_slice_capability1 { 603 uint8_t ONE_SLICE_PER_DP_DSC_SINK_DEVICE :1; 604 uint8_t TWO_SLICES_PER_DP_DSC_SINK_DEVICE :1; 605 uint8_t RESERVED :1; 606 uint8_t FOUR_SLICES_PER_DP_DSC_SINK_DEVICE :1; 607 uint8_t SIX_SLICES_PER_DP_DSC_SINK_DEVICE :1; 608 uint8_t EIGHT_SLICES_PER_DP_DSC_SINK_DEVICE :1; 609 uint8_t TEN_SLICES_PER_DP_DSC_SINK_DEVICE :1; 610 uint8_t TWELVE_SLICES_PER_DP_DSC_SINK_DEVICE :1; 611 }; 612 613 struct dpcd_dsc_line_buffer_bit_depth { 614 uint8_t LINE_BUFFER_BIT_DEPTH :4; 615 uint8_t RESERVED :4; 616 }; 617 618 struct dpcd_dsc_block_prediction_support { 619 uint8_t BLOCK_PREDICTION_SUPPORT:1; 620 uint8_t RESERVED :7; 621 }; 622 623 struct dpcd_maximum_bits_per_pixel_supported_by_the_decompressor { 624 uint8_t MAXIMUM_BITS_PER_PIXEL_SUPPORTED_BY_THE_DECOMPRESSOR_LOW :7; 625 uint8_t MAXIMUM_BITS_PER_PIXEL_SUPPORTED_BY_THE_DECOMPRESSOR_HIGH :7; 626 uint8_t RESERVED :2; 627 }; 628 629 struct dpcd_dsc_decoder_color_format_capabilities { 630 uint8_t RGB_SUPPORT :1; 631 uint8_t Y_CB_CR_444_SUPPORT :1; 632 uint8_t Y_CB_CR_SIMPLE_422_SUPPORT :1; 633 uint8_t Y_CB_CR_NATIVE_422_SUPPORT :1; 634 uint8_t Y_CB_CR_NATIVE_420_SUPPORT :1; 635 uint8_t RESERVED :3; 636 }; 637 638 struct dpcd_dsc_decoder_color_depth_capabilities { 639 uint8_t RESERVED0 :1; 640 uint8_t EIGHT_BITS_PER_COLOR_SUPPORT :1; 641 uint8_t TEN_BITS_PER_COLOR_SUPPORT :1; 642 uint8_t TWELVE_BITS_PER_COLOR_SUPPORT :1; 643 uint8_t RESERVED1 :4; 644 }; 645 646 struct dpcd_peak_dsc_throughput_dsc_sink { 647 uint8_t THROUGHPUT_MODE_0:4; 648 uint8_t THROUGHPUT_MODE_1:4; 649 }; 650 651 struct dpcd_dsc_slice_capabilities_2 { 652 uint8_t SIXTEEN_SLICES_PER_DSC_SINK_DEVICE :1; 653 uint8_t TWENTY_SLICES_PER_DSC_SINK_DEVICE :1; 654 uint8_t TWENTYFOUR_SLICES_PER_DSC_SINK_DEVICE :1; 655 uint8_t RESERVED :5; 656 }; 657 658 struct dpcd_bits_per_pixel_increment{ 659 uint8_t INCREMENT_OF_BITS_PER_PIXEL_SUPPORTED :3; 660 uint8_t RESERVED :5; 661 }; 662 union dpcd_dsc_basic_capabilities { 663 struct { 664 struct dpcd_dsc_support dsc_support; 665 struct dpcd_dsc_algorithm_revision dsc_algorithm_revision; 666 struct dpcd_dsc_rc_buffer_block_size dsc_rc_buffer_block_size; 667 uint8_t dsc_rc_buffer_size; 668 struct dpcd_dsc_slice_capability1 dsc_slice_capabilities_1; 669 struct dpcd_dsc_line_buffer_bit_depth dsc_line_buffer_bit_depth; 670 struct dpcd_dsc_block_prediction_support dsc_block_prediction_support; 671 struct dpcd_maximum_bits_per_pixel_supported_by_the_decompressor maximum_bits_per_pixel_supported_by_the_decompressor; 672 struct dpcd_dsc_decoder_color_format_capabilities dsc_decoder_color_format_capabilities; 673 struct dpcd_dsc_decoder_color_depth_capabilities dsc_decoder_color_depth_capabilities; 674 struct dpcd_peak_dsc_throughput_dsc_sink peak_dsc_throughput_dsc_sink; 675 uint8_t dsc_maximum_slice_width; 676 struct dpcd_dsc_slice_capabilities_2 dsc_slice_capabilities_2; 677 uint8_t reserved; 678 struct dpcd_bits_per_pixel_increment bits_per_pixel_increment; 679 } fields; 680 uint8_t raw[16]; 681 }; 682 683 union dpcd_dsc_ext_capabilities { 684 struct { 685 uint8_t BRANCH_OVERALL_THROUGHPUT_0; 686 uint8_t BRANCH_OVERALL_THROUGHPUT_1; 687 uint8_t BRANCH_MAX_LINE_WIDTH; 688 } fields; 689 uint8_t raw[3]; 690 }; 691 692 struct dpcd_dsc_capabilities { 693 union dpcd_dsc_basic_capabilities dsc_basic_caps; 694 union dpcd_dsc_ext_capabilities dsc_ext_caps; 695 }; 696 697 698 #endif /* DC_DP_TYPES_H */ 699
Indexes created Sat Sep 20 22:09:52 GMT 2025