emgd/include/displayid.h

   1 /*
   2  *-----------------------------------------------------------------------------
   3  * Filename: displayid.h
   4  * $Revision: 1.10 $
   5  *-----------------------------------------------------------------------------
   6  * Copyright (c) 2002-2010, Intel Corporation.
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a copy
   9  * of this software and associated documentation files (the "Software"), to deal
  10  * in the Software without restriction, including without limitation the rights
  11  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  12  * copies of the Software, and to permit persons to whom the Software is
  13  * furnished to do so, subject to the following conditions:
  14  *
  15  * The above copyright notice and this permission notice shall be included in
  16  * all copies or substantial portions of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  21  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  23  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  24  * THE SOFTWARE.
  25  *
  26  *-----------------------------------------------------------------------------
  27  * Description:
  28  *  Header file for DisplayID.
  29  *  Supported DisplayID versions:
  30  *  VESA DisplayID Standard Verion 1 12/13/2007
  31  *-----------------------------------------------------------------------------
  32  */
  33
  34 #ifndef _DISPLAYID_H
  35 #define _DISPLAYID_H
  36
  37 #include <pd.h>
  38
  39 /* Max limits for DisplayID structure members */
  40 #define DISPLAYID_MAX_RANGES        5
  41 #define DISPLAYID_MAX_NUM_TIMINGS   5
  42 /* Possible attributes from DisplayID:
  43  *     T1, T2, T3, T4, T5
  44  *     dual_channel
  45  *     panel_depth
  46  *     panel_type */
  47 #define DISPLAYID_MAX_ATTRS        10
  48
  49 /* DisplayID return values */
  50 #define DISPLAYID_ERROR_PARSE      1
  51 #define DISPLAYID_READ_AGAIN       2
  52 #define DISPLAYID_NOT_SUPPORTED    3
  53
  54 /* Print line macro */
  55 #define DISPLAYID_PRINT_LINE() \
  56         EMGD_DEBUG("----------------------------------------------------------")
  57
  58 /* DisplayID Product Type Identifiers */
  59 #define PRODUCTID_EXTENSION        0x00
  60 #define PRODUCTID_TEST             0x01
  61 #define PRODUCTID_PANEL            0x02
  62 #define PRODUCTID_STANDALONE       0x03
  63 #define PRODUCTID_TV_RECEIVER      0x04
  64 #define PRODUCTID_REPEATER         0x05
  65
  66 /* DisplayID Data Block Tags */
  67 #define DATABLOCK_PRODUCTID        0x00
  68 #define DATABLOCK_DISPLAY_PARAMS   0x01
  69 #define DATABLOCK_COLOR_CHARS      0x02
  70 #define DATABLOCK_TIMING_1_DETAIL  0x03
  71 #define DATABLOCK_TIMING_2_DETAIL  0x04
  72 #define DATABLOCK_TIMING_3_SHORT   0x05
  73 #define DATABLOCK_TIMING_4_DMTID   0x06
  74 #define DATABLOCK_VESA_TIMING_STD  0x07
  75 #define DATABLOCK_CEA_TIMING_STD   0x08
  76 #define DATABLOCK_VIDEO_RANGE      0x09
  77 #define DATABLOCK_SERIAL_NUMBER    0x0A
  78 #define DATABLOCK_ASCII_STRING     0x0B
  79 #define DATABLOCK_DISPLAY_DEVICE   0x0C
  80 #define DATABLOCK_LVDS_INTERFACE   0x0D
  81 #define DATABLOCK_TRANSFER_CHAR    0x0E
  82 #define DATABLOCK_DISPLAY_INTF     0x0F
  83 #define DATABLOCK_STEREO_INTF      0x10
  84 #define DATABLOCK_VENDOR_SPECIFIC  0x7F
  85 #define DATABLOCK_RESERVED         0x80
  86
  87 /*
  88  * typedef struct __attribute__((packed)) {
  89  * } foo_t;
  90  * This isn't available with Microsoft C compiler
  91  * So use pragma to enable bytewise packing and at the end
  92  * put it back to default.
  93  */
  94 #pragma pack(1)
  95 /* General Data Block header - Max 251 bytes */
  96 typedef struct _datablock {
  97         unsigned char  tag;                /* data block type */
  98         unsigned char  revision:3;
  99         unsigned char  reserved:5;
 100         unsigned char  payload;
 101         unsigned char  payload_data[248];
 102 } datablock_t;
 103
 104 /* Video Timing Range Limits Data Block.
 105  * Note:
 106  *   It is used to convey to a source the supported range of vertical and
 107  *   horizontal frequencies along with the maximum supported pixel clock.
 108  *   For a continuous frequency device any timing that lies within the
 109  *   specified range will ensure a displayable image. The picture may not
 110  *   be properly sized or centered, as guaranteed with explicitly reported
 111  *   timing, but however the display should synchronize to the timing.
 112  */
 113
 114 typedef struct _timing_range {
 115         unsigned char  tag;                 /* data block type */
 116         unsigned char  revision:3;
 117         unsigned char  reserved:5;
 118         unsigned char  payload;
 119
 120         struct {
 121                 unsigned short lsb_min_dclk;
 122                 unsigned char  msb_min_dclk;
 123         } mindclk;
 124         struct {
 125                 unsigned short lsb_max_dclk;
 126                 unsigned char  msb_max_dclk;
 127         } maxdclk;
 128         unsigned char  min_hrate;           /* KHz */
 129         unsigned char  max_hrate;           /* KHz */
 130         unsigned short min_hblank;          /* Pixels */
 131         unsigned char  min_vrate;           /* Hz */
 132         unsigned char  max_vrate;           /* Hz */
 133         unsigned short min_vblank;          /* Lines */
 134
 135         /* Timing support flags */
 136         unsigned char  reserved1:4;
 137         unsigned char  discrete_display:1;
 138         unsigned char  vesa_cvt_rb:1;
 139         unsigned char  vesa_cvt_std:1;
 140         unsigned char  interlaced:1;
 141
 142         /* Because there is no way to define a 3-byte quantity it is not possible
 143          * to directly read the dclks into member variables automatically.
 144          * Therefore 1st read into above dclk bytes and then copy values into
 145          * below fields at the time of parsing. */
 146         /* Below members are outside Data Block definition */
 147         unsigned long  min_dclk;            /* KHz */
 148         unsigned long  max_dclk;            /* KHz */
 149 } timing_range_t;
 150
 151 /* Data Block Display params - Video input id */
 152 #define VIDEO_INPUT_LVDS    0x01
 153 #define VIDEO_INPUT_TMDS    0x02
 154 #define VIDEO_INPUT_RSDS    0x03
 155 #define VIDEO_INPUT_DVID    0x04
 156 #define VIDEO_INPUT_DVII    0x05
 157 #define VIDEO_INPUT_VESA_M1 0x06
 158 #define VIDEO_INPUT_HDMI_A  0x07
 159 #define VIDEO_INPUT_HDMI_B  0x08
 160 #define VIDEO_INPUT_MDDI    0x09
 161 #define VIDEO_INPUT_PORT    0x0A
 162 #define VIDEO_INPUT_1394    0x0B
 163 #define VIDEO_INPUT_USB     0x0C
 164
 165 /* Aspect Ratios */
 166 #define TIMING_AR_1_1       0x0    /* 3-bits */
 167 #define TIMING_AR_5_4       0x1
 168 #define TIMING_AR_4_3       0x2
 169 #define TIMING_AR_15_9      0x3
 170 #define TIMING_AR_16_9      0x4
 171 #define TIMING_AR_16_10     0x5
 172
 173 /* Data Block Display params - feature support flags */
 174 typedef struct _display_params {
 175         unsigned char  tag;                /* data block type */
 176         unsigned char  revision:3;
 177         unsigned char  reserved:5;
 178         unsigned char  payload;
 179
 180         unsigned short horz_image_size;    /* horizontal image size in 0.1 mm */
 181         unsigned short vert_image_size;    /* vertical image size in 0.1 mm */
 182         unsigned short horz_pixels;        /* horizontal pixels */
 183         unsigned short vert_pixels;        /* vertical pixels */
 184
 185         /* Display feature support flags */
 186         unsigned char  deinterlacing:1;    /* de-interlacing capable display */
 187         unsigned char  reserved1:1;
 188         unsigned char  fixed_res:1;        /* fixed resolution display */
 189         unsigned char  fixed_timing:1;     /* fixed timing display */
 190         unsigned char  dpm_capable:1;      /* VESA DPM capable display */
 191         unsigned char  audio_override:1;   /* override audio on video interface */
 192         unsigned char  seperate_audio:1;   /* seperate audio input is available */
 193         unsigned char  audio_on_video:1;   /* audio available on video interface */
 194
 195         unsigned char  transfer_gamma;     /* transfer characteristic gamma */
 196         unsigned char  aspect_ratio;       /* aspect ratio */
 197         unsigned char  native_color_depth:4; /* color bit depth */
 198         unsigned char  overall_color_depth:4;/* color bit depth */
 199 } display_params_t;
 200
 201
 202 /* Product Identification Data Block */
 203 typedef struct _productid {
 204         unsigned char  tag;                /* data block type */
 205         unsigned char  revision:3;
 206         unsigned char  reserved:5;
 207         unsigned char  payload;
 208
 209         char           vendor[3];          /* vendor name code, no NULL char */
 210         unsigned short product_code;       /* product code */
 211         unsigned long  serial_number;      /* 32-bit serial number */
 212         unsigned char  manf_week;          /* manufactured week number */
 213         unsigned char  manf_year;          /* # of years after 2000 */
 214         unsigned char  string_size;        /* product id string size */
 215         char           string[237];        /* product id string max 236 + NULL */
 216 } productid_t;
 217
 218 /* Color Characteristices Data Block */
 219 typedef struct _color_char {
 220         unsigned char  tag;                /* data block type */
 221         unsigned char  revision:3;
 222         unsigned char  reserved:5;
 223         unsigned char  payload;
 224
 225         unsigned char  white_points:4;
 226         unsigned char  primaries:3;
 227         unsigned char  temporal_color:1;
 228
 229         unsigned short color_x_value:12;   /* 1.5 bytes */
 230         unsigned short color_y_value:12;   /* 1.5 bytes: 0.5 from above */
 231 } color_char_t;
 232
 233 /* Type 1 - DTD - 20 bytes
 234  * Notes:
 235  * 1. In a Data Block, maximum of 12DTDs x 20bytes = 240bytes can fit.
 236  * 2. As part of parsing, DTD data will be read into type1_dtd_t then
 237  *    converted into pd_timing_t for IEGD consumption.
 238  * 3. There is no limit on maximum number of type 1 timings.
 239  *    They can be present not only in basic section but also in the
 240  *    extension section as well.
 241  */
 242 typedef struct _type1_dtd {
 243         struct {
 244                 unsigned short lsb_dclk;
 245                 unsigned char  msb_dclk;
 246         } dclk;                                  /*  02-00 [07:00] */
 247
 248         /* timing options - 1 byte */
 249         unsigned char  aspect_ratio:3;
 250         unsigned char  reserved:1;
 251         unsigned char  interlaced:1;
 252         unsigned char  stereo_3d_support:2;
 253         unsigned char  preferred:1;
 254
 255         unsigned short hactive;
 256         unsigned short hblank;
 257         unsigned short hsync_offset:15;
 258         unsigned short hsync_polarity:1;
 259         unsigned short hsync_width;
 260         unsigned short vactive;
 261         unsigned short vblank;
 262         unsigned short vsync_offset:15;
 263         unsigned short vsync_polarity:1;
 264         unsigned short vsync_width;
 265 } type1_dtd_t;
 266
 267 /* Type 2 - DTD - 11 bytes
 268  * Notes:
 269  * 1. In a Data Block, maximum of 22DTDs x 11bytes = 242bytes can fit.
 270  * 2. As part of parsing, DTD data will be read into type2_dtd_t then
 271  *    converted into pd_timing_t for IEGD consumption.
 272  * 3. There is no limit on maximum number of type 2 timings.
 273  *    They can be present not only in basic section but also in the
 274  *    extension section as well.
 275  */
 276 typedef struct _type2_dtd {                   /* bytes: [bits] */
 277         struct {
 278                 unsigned short lsb_dclk;
 279                 unsigned char  msb_dclk;
 280         } dclk;                                  /*  02-00 [07:00] */
 281
 282         /* timing options - 1 byte */
 283         unsigned char  reserved:4;                /*     03 [03:00] */
 284         unsigned char  interlaced:1;              /*     03 [04:04] */
 285         unsigned char  stereo_3d_support:2;       /*     03 [06:05] */
 286         unsigned char  preferred:1;               /*     03 [07:07] */
 287
 288         unsigned short hactive:9;                 /*  05-04 [08:00] */
 289         unsigned short hblank:7;                  /*  05-04 [15:09] */
 290         unsigned char  hsync_width:4;             /*     06 [03:00] */
 291         unsigned char  hsync_offset:4;            /*     06 [07:04] */
 292         unsigned short vactive:12;                /*  08-07 [11:00] */
 293         unsigned short reserved1:4;               /*     08 [15:12] */
 294
 295         unsigned char  vblank;                    /*     09 [07:00] */
 296         unsigned char  vsync_width:4;             /*     10 [03:00] */
 297         unsigned char  vsync_offset:4;            /*     10 [07:04] */
 298 } type2_dtd_t;
 299
 300
 301 /* Type 3 - DTD - CVT - 3 bytes
 302  * Notes:
 303  * 1. In a Data Block, maximum of 82timings x 3bytes = 246bytes can fit.
 304  * 2. As part of parsing, data will be read into type3_cvt_t then
 305  *    it will be made available for IEGD consumption
 306  *    either
 307  *         by marking in standard timing table
 308  *    or
 309  *         creating and inserting in pd_timing_t
 310  *    based on CVT formula.
 311  * 3. There is no limit on maximum number of type 3 timings.
 312  *    They can be present not only in basic section but also in the
 313  *    extension section as well.
 314  */
 315 typedef struct _type3_cvt {                   /* bytes: [bits] */
 316         /* byte 0 - timing options */
 317         unsigned char  aspect_ratio:4;
 318         unsigned char  cvt_formula:3;
 319         unsigned char  preferred:1;
 320
 321         /* byte 1 - horizontal active */
 322         unsigned char  hactive;
 323
 324         /* byte 2 - other info */
 325         unsigned char  refresh:7;
 326         unsigned char  interlaced:1;
 327 } type3_cvt_t;
 328
 329 /* Structure to emulate bit fields for Type1 Std or Type2 CEA timings */
 330 typedef struct _type_std {
 331         unsigned short width;
 332         unsigned short height;
 333         unsigned short refresh;
 334         unsigned long  flags;         /* currently interlaced, rb, aspect ratio */
 335 } type_std_t;
 336
 337 /* Display Device Data Block */
 338 /* Analog interface subtype codes */
 339 #define ANALOG_15HD_VGA     0x0
 340 #define ANALOG_VESA_NAVI_V  0x1
 341 #define ANALOG_VESA_NAVI_D  0x2
 342
 343 /* Device technology types */
 344 #define TECH_CRT            0x0
 345 #define TECH_LVDS           0x1
 346 #define TECH_PLASMA         0x2
 347 #define TECH_EL             0x3   /* Electroluminescent */
 348 #define TECH_INORG          0x4
 349 #define TECH_ORG            0x5
 350 #define TECH_FED            0x6   /* FED or sim. "cold cathode" */
 351 #define TECH_EP             0x7   /* Electrophoretic */
 352 #define TECH_EC             0x8   /* Electrochromic */
 353 #define TECH_EM             0x9   /* Electromechanical */
 354 #define TECH_EW             0xA   /* Electrowetting */
 355 #define TECH_OTHER          0xF   /* Othertype not defined here */
 356
 357 /* Device technoloty sub-types */
 358 #define TECH_CRT_MONO       0x0   /* Mono chrome CRT */
 359 #define TECH_CRT_STD        0x1   /* Standard tricolor CRT */
 360 #define TECH_CRT_OTHER      0x2   /* other or undefined */
 361
 362 #define TECH_LVDS_PASSIVE_TN 0x0  /* Passive matrix TN */
 363 #define TECH_LVDS_PASSIVE_CL 0x1  /* Passive matrix cholesteric LC */
 364 #define TECH_LVDS_PASSIVE_FE 0x2  /* Passive matrix ferroelectric LC */
 365 #define TECH_LVDS_PASSIVE_OT 0x3  /* Passive matrix other LC */
 366 #define TECH_LVDS_ACTIVE_TN  0x4  /* Active matrix TN */
 367 #define TECH_LVDS_ACTIVE_IPS 0x5  /* Active matrix IPS */
 368 #define TECH_LVDS_ACTIVE_VA  0x6  /* Active matrix VA */
 369 #define TECH_LVDS_ACTIVE_OCB 0x7  /* Active matrix OCB */
 370 #define TECH_LVDS_ACTIVE_FL  0x8  /* Active matrix ferroelectric */
 371 #define TECH_LVDS_OTHER      0xF  /* Other LVDS technology not defined above */
 372
 373 #define TECH_PLASMA_DC       0x0  /* DC plasma */
 374 #define TECH_PLASMA_AC       0x1  /* AC plasma */
 375
 376 /* Content protection support */
 377 #define CP_NOCP              0x0
 378 #define CP_DTCP              0x2
 379 #define CP_DPCP              0x3  /* Display port content protection */
 380
 381 /* Display physical orientation information */
 382 #define DEFAULT_ORIENTATION(a)          ((a & 0xC0) >> 6)
 383 #define ZERO_PIXEL(a)                           ((a & 0x0C) >> 2)
 384 #define SCAN_DIRECTION(a)                       (a & 0x03)
 385
 386 #define SCAN_DIRECTION_LONG             0x1 /* Display scan direction (2 bits) */
 387 #define SCAN_DIRECTION_SHORT            0x2
 388
 389 #define ZP_UPPER_LEFT                           0x0 /* Zero pixel position (2 bits) */
 390 #define ZP_UPPER_RIGHT                          0x1
 391 #define ZP_LOWER_LEFT                           0x2
 392 #define ZP_LOWER_RIGHT                          0x3
 393
 394 #define DEF_ORIENTATION_LANDSCAPE       0x0 /* Default orientation (2 bits) */
 395 #define DEF_ORIENTATION_PORTRAIT        0x1
 396 #define DEF_ORIENTATION_UNKNOWN         0x2
 397
 398
 399 typedef struct _display_device {
 400         unsigned char  tag;                /* data block type */
 401         unsigned char  revision:3;
 402         unsigned char  reserved:5;
 403         unsigned char  payload;
 404
 405         unsigned char  tech_subtype:4;
 406         unsigned char  tech_type:4;
 407         unsigned char  reserved1:2;
 408         unsigned char  can_on_off_bklt:1;  /* This bit tells backlight can be
 409                                                                                 * switched on or off using the control
 410                                                                                 * method defined */
 411         unsigned char  can_change_bklt:1;  /* This bit tells backlight intensity
 412                                                                                 * can be changed using the control
 413                                                                                 * method defined */
 414         unsigned char  op_mode:4;
 415
 416         unsigned short horz_pixel_count;
 417         unsigned short vert_pixel_count;
 418         unsigned char  aspect_ratio;
 419         unsigned char  orientation;
 420         unsigned char  subpixel_info;
 421         unsigned char  horz_pitch;
 422         unsigned char  vert_pitch;
 423
 424         unsigned char  display_color_depth:4;
 425         unsigned char  reserved2:4;
 426         unsigned char  response_time;
 427 } display_dev_t;
 428
 429 /* LVDS Interface Timing and Power Sequencing */
 430 typedef struct _lvds_display {
 431         unsigned char  tag;                /* data block type */
 432         unsigned char  revision:3;
 433         unsigned char  reserved:5;
 434         unsigned char  payload;
 435
 436         unsigned char  max_t1:4;
 437         unsigned char  min_t1:4;
 438
 439         unsigned char  max_t2:6;
 440         unsigned char  reserved2:2;
 441
 442         unsigned char  max_t3:6;
 443         unsigned char  reserved3:2;
 444
 445         unsigned char  min_t4:7;
 446         unsigned char  reserved4:1;
 447
 448         unsigned char  min_t5:6;
 449         unsigned char  reserved5:2;
 450
 451         unsigned char  min_t6:6;
 452         unsigned char  reserved6:2;
 453 } lvds_display_t;
 454
 455 /* Transfer Characteristics Data Block */
 456 typedef struct _transfer_char {
 457         unsigned char  tag;                /* data block type */
 458         unsigned char  revision:3;
 459         unsigned char  reserved:5;
 460         unsigned char  payload;
 461         unsigned char  luminance;
 462 } transfer_char_t;
 463
 464 /* Vendor specific Data Block */
 465 typedef struct _vendor {
 466         unsigned char  tag;                /* data block type */
 467         unsigned char  revision:3;
 468         unsigned char  reserved:5;
 469         unsigned char  payload;
 470         unsigned char  vendor_id[3];                /* no NULL char */
 471         unsigned char  vendor_specific_data[246];   /* 245 + NULL */
 472 } vendor_t;
 473
 474 /* Stereo methods */
 475 #define STEREO_FIELD_SEQUENTIAL      0x00
 476 #define STEREO_SIDE_BY_SIDE          0x01
 477 #define STEREO_PIXEL_INTERLEAVED     0x02
 478 #define STEREO_DUAL_INTERFACE        0x03
 479 #define STEREO_MULTIVIEW             0x04
 480 #define STEREO_PROPRIETARY           0xFF
 481
 482 /* Stereo Display Interface Data Block */
 483 typedef struct _stereo_intf {
 484         unsigned char  tag;                /* data block type */
 485         unsigned char  revision:3;
 486         unsigned char  reserved:5;
 487         unsigned char  payload;
 488
 489         unsigned char  stereo_intf_payload;
 490         unsigned char  stereo_intf_method;
 491         union {
 492                 unsigned char  stereo_polarity;     /* Field Sequential Stereo */
 493                 unsigned char  view_identity;       /* Side-by-side Stereo */
 494                 unsigned char  pattern8x8[8];       /* Pixel Interleaved Stereo */
 495                 unsigned char  polarity_mirroring;  /* Dual Interface Stereo */
 496                 struct {                            /* Multiview stereo */
 497                         unsigned char  num_views;
 498                         unsigned char  interleaving_method;
 499                 } multiview;
 500                 /* Note: In case of proprietary stereo method, the parameters can be
 501                  * somewhere in the Vendor Specific Block */
 502                 unsigned char  stereo_params[8];
 503         };
 504 } stereo_intf_t;
 505
 506 /* Display Interface Data Block */
 507 #define INTERFACE_ANALOG    0x0
 508 #define INTERFACE_LVDS      0x1
 509 #define INTERFACE_TMDS      0x2
 510 #define INTERFACE_RSDS      0x3
 511 #define INTERFACE_DVID      0x4
 512 #define INTERFACE_DVII_A    0x5
 513 #define INTERFACE_DVII_D    0x6
 514 #define INTERFACE_HDMI_A    0x7
 515 #define INTERFACE_HDMI_B    0x8
 516 #define INTERFACE_MDDI      0x9
 517 #define INTERFACE_DISP_PORT 0xA
 518 #define INTERFACE_PROP_DIG  0xB
 519
 520 /* Interface color depth */
 521 #define INTERFACE_6BPPC            0x01   /* 6 bits per primary color */
 522 #define INTERFACE_8BPPC            0x02   /* 8 bits per primary color */
 523 #define INTERFACE_10BPPC           0x04   /* 10 bits per primary color */
 524 #define INTERFACE_12BPPC           0x08   /* 12 bits per primary color */
 525 #define INTERFACE_14BPPC           0x10   /* 14 bits per primary color */
 526 #define INTERFACE_16BPPC           0x20   /* 16 bits per primary color */
 527
 528 typedef struct _display_intf {
 529         unsigned char  tag;                /* data block type */
 530         unsigned char  revision:3;
 531         unsigned char  reserved:5;
 532         unsigned char  payload;
 533
 534         unsigned char  num_channels:4;
 535         unsigned char  intf_type:4;
 536
 537         unsigned char  intf_revision:4;
 538         unsigned char  intf_version:4;
 539
 540         unsigned char  rgb_color_depth:6;
 541         unsigned char  reserved2:2;
 542
 543         unsigned char  ycbcr_444_color_depth:6;
 544         unsigned char  reserved3:2;
 545
 546         unsigned char  ycbcr_422_color_depth:6;
 547         unsigned char  reserved4:2;
 548
 549         unsigned char  cp_type:3;
 550         unsigned char  reserved5:2;
 551         unsigned char  color_encoding:3;
 552
 553         unsigned char  cp_revision:4;
 554         unsigned char  cp_version:4;
 555
 556         unsigned char  ss_percent:4;
 557         unsigned char  reserved6:2;
 558         unsigned char  ss_type:2;
 559
 560         union {
 561                 struct {
 562                         /* Interface type: LVDS */
 563                         unsigned char  support_3_3v:1;
 564                         unsigned char  support_5v:1;
 565                         unsigned char  support_12v:1;
 566                         unsigned char  support_2_8v:1;
 567                         unsigned char  openldi:1;
 568                         unsigned char  reserved5:3;
 569
 570                         unsigned char  data_strobe:1;
 571                         unsigned char  de_polarity:1;
 572                         unsigned char  de_mode:1;
 573                         unsigned char  reserved6:5;
 574                 } lvds;
 575                 struct {
 576                         /* Interface type: Proprietary Digital Interface */
 577                         unsigned char  data_strobe:1;
 578                         unsigned char  de_polarity:1;
 579                         unsigned char  de_mode:1;
 580                         unsigned char  reserved7:5;
 581
 582                         unsigned char  reserved8;
 583                 } pdi;
 584                 unsigned short bytes9_10;
 585         };
 586 } display_intf_t;
 587
 588 /* Serial Number String */
 589 typedef struct _serial_number {
 590         unsigned char  tag;                /* data block type */
 591         unsigned char  revision:3;
 592         unsigned char  reserved:5;
 593         unsigned char  payload;
 594
 595         unsigned char  serial_num[249];    /* 248 + NULL */
 596 } serial_number_t;
 597
 598 /* General Purpose ASCII String */
 599 typedef struct _general_string {
 600         unsigned char  tag;                /* data block type */
 601         unsigned char  revision:3;
 602         unsigned char  reserved:5;
 603         unsigned char  payload;
 604
 605         unsigned char  string[249];        /* 248 + NULL */
 606 } general_string_t;
 607
 608 /* This structure holds all of the parsed DisplayID information.*/
 609 /* 5-required bytes:
 610  *  1-byte  - version, revision
 611  *  1-byte  - payload
 612  *  1-byte  - number of extensions
 613  *  1-byte  - product type identifier
 614  *  1-byte  - checksum
 615  */
 616 typedef struct _displayid {
 617         unsigned char    revision:4;         /* HEADER: revision */
 618         unsigned char    version:4;          /* version */
 619         unsigned char    payload;            /* payload excluding 5 required bytes*/
 620         unsigned char    ptype_id;           /* DisplayID product type identifier */
 621         unsigned char    num_extensions;     /* number of extension sections */
 622         unsigned char    check_sum;          /* FOOTER: last byte of the section */
 623
 624         display_params_t display_params;     /* display params block */
 625         timing_range_t   timing_range;       /* timing range block */
 626         lvds_display_t   lvds;               /* LVDS interface & display block */
 627         display_dev_t    display_dev;        /* display device block */
 628         display_intf_t   display_intf;       /* display interface block */
 629         unsigned char    dummy_db[256];      /* dummy datablock */
 630
 631         /* Video Timing Modes Type I, II DTDs into pd_timing_t */
 632         unsigned char   num_timings;
 633         pd_timing_t     timings[DISPLAYID_MAX_NUM_TIMINGS];
 634
 635         /* DisplayID attributes */
 636         unsigned char   num_attrs;
 637         pd_attr_t       attr_list[DISPLAYID_MAX_ATTRS];
 638
 639 #ifndef CONFIG_MICRO
 640         productid_t                     productid;       /* product id block */
 641         color_char_t                    color_char;      /* color characteristics block */
 642         serial_number_t                 serial_num;      /* serial number ASCII string */
 643         general_string_t                general_string;  /* general purpose ASCII string */
 644         transfer_char_t                 transfer_char;   /* transfer characteristics block */
 645         stereo_intf_t                   stereo_intf;     /* stereo display interface */
 646         vendor_t                                vendor;          /* vendor specific data */
 647         igd_DID_rotation_info_t rotation_info;   /* display orientation data */
 648 #endif
 649 } displayid_t;
 650
 651 /* Pack back to default */
 652 #pragma pack()
 653
 654 /* Functions */
 655 void displayid_filter_range_timings(pd_timing_t *tt, timing_range_t *range,
 656         unsigned char firmware_type);
 657 int displayid_parse(unsigned char *buffer, displayid_t   *displayid,
 658                 pd_timing_t *timings, int count, unsigned char upscale);
 659
 660 void displayid_dump(unsigned char *buffer, unsigned short size);
 661 void displayid_print(unsigned char *buffer, displayid_t *displayid);
 662
 663 #endif