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 31 #define HDMI_INFOFRAME_TYPE_VENDOR 0x81 32 33 enum ColorimetryRGBDP { 34 ColorimetryRGB_DP_sRGB = 0, 35 ColorimetryRGB_DP_AdobeRGB = 3, 36 ColorimetryRGB_DP_P3 = 4, 37 ColorimetryRGB_DP_CustomColorProfile = 5, 38 ColorimetryRGB_DP_ITU_R_BT2020RGB = 6, 39 }; 40 enum ColorimetryYCCDP { 41 ColorimetryYCC_DP_ITU601 = 0, 42 ColorimetryYCC_DP_ITU709 = 1, 43 ColorimetryYCC_DP_AdobeYCC = 5, 44 ColorimetryYCC_DP_ITU2020YCC = 6, 45 ColorimetryYCC_DP_ITU2020YCbCr = 7, 46 }; 47 48 void mod_build_vsc_infopacket(const struct dc_stream_state *stream, 49 struct dc_info_packet *info_packet) 50 { 51 unsigned int vscPacketRevision = 0; 52 unsigned int i; 53 unsigned int pixelEncoding = 0; 54 unsigned int colorimetryFormat = 0; 55 bool stereo3dSupport = false; 56 57 if (stream->timing.timing_3d_format != TIMING_3D_FORMAT_NONE && stream->view_format != VIEW_3D_FORMAT_NONE) { 58 vscPacketRevision = 1; 59 stereo3dSupport = true; 60 } 61 62 /*VSC packet set to 2 when DP revision >= 1.2*/ 63 if (stream->psr_version != 0) 64 vscPacketRevision = 2; 65 66 if (stream->timing.pixel_encoding == PIXEL_ENCODING_YCBCR420) 67 vscPacketRevision = 5; 68 69 /* VSC packet not needed based on the features 70 * supported by this DP display 71 */ 72 if (vscPacketRevision == 0) 73 return; 74 75 if (vscPacketRevision == 0x2) { 76 /* Secondary-data Packet ID = 0*/ 77 info_packet->hb0 = 0x00; 78 /* 07h - Packet Type Value indicating Video 79 * Stream Configuration packet 80 */ 81 info_packet->hb1 = 0x07; 82 /* 02h = VSC SDP supporting 3D stereo and PSR 83 * (applies to eDP v1.3 or higher). 84 */ 85 info_packet->hb2 = 0x02; 86 /* 08h = VSC packet supporting 3D stereo + PSR 87 * (HB2 = 02h). 88 */ 89 info_packet->hb3 = 0x08; 90 91 for (i = 0; i < 28; i++) 92 info_packet->sb[i] = 0; 93 94 info_packet->valid = true; 95 } 96 97 if (vscPacketRevision == 0x1) { 98 99 info_packet->hb0 = 0x00; // Secondary-data Packet ID = 0 100 info_packet->hb1 = 0x07; // 07h = Packet Type Value indicating Video Stream Configuration packet 101 info_packet->hb2 = 0x01; // 01h = Revision number. VSC SDP supporting 3D stereo only 102 info_packet->hb3 = 0x01; // 01h = VSC SDP supporting 3D stereo only (HB2 = 01h). 103 104 info_packet->valid = true; 105 } 106 107 if (stereo3dSupport) { 108 /* ==============================================================================================================| 109 * A. STEREO 3D 110 * ==============================================================================================================| 111 * VSC Payload (1 byte) From DP1.2 spec 112 * 113 * Bits 3:0 (Stereo Interface Method Code) | Bits 7:4 (Stereo Interface Method Specific Parameter) 114 * ----------------------------------------------------------------------------------------------------- 115 * 0 = Non Stereo Video | Must be set to 0x0 116 * ----------------------------------------------------------------------------------------------------- 117 * 1 = Frame/Field Sequential | 0x0: L + R view indication based on MISC1 bit 2:1 118 * | 0x1: Right when Stereo Signal = 1 119 * | 0x2: Left when Stereo Signal = 1 120 * | (others reserved) 121 * ----------------------------------------------------------------------------------------------------- 122 * 2 = Stacked Frame | 0x0: Left view is on top and right view on bottom 123 * | (others reserved) 124 * ----------------------------------------------------------------------------------------------------- 125 * 3 = Pixel Interleaved | 0x0: horiz interleaved, right view pixels on even lines 126 * | 0x1: horiz interleaved, right view pixels on odd lines 127 * | 0x2: checker board, start with left view pixel 128 * | 0x3: vertical interleaved, start with left view pixels 129 * | 0x4: vertical interleaved, start with right view pixels 130 * | (others reserved) 131 * ----------------------------------------------------------------------------------------------------- 132 * 4 = Side-by-side | 0x0: left half represents left eye view 133 * | 0x1: left half represents right eye view 134 */ 135 switch (stream->timing.timing_3d_format) { 136 case TIMING_3D_FORMAT_HW_FRAME_PACKING: 137 case TIMING_3D_FORMAT_SW_FRAME_PACKING: 138 case TIMING_3D_FORMAT_TOP_AND_BOTTOM: 139 case TIMING_3D_FORMAT_TB_SW_PACKED: 140 info_packet->sb[0] = 0x02; // Stacked Frame, Left view is on top and right view on bottom. 141 break; 142 case TIMING_3D_FORMAT_DP_HDMI_INBAND_FA: 143 case TIMING_3D_FORMAT_INBAND_FA: 144 info_packet->sb[0] = 0x01; // Frame/Field Sequential, L + R view indication based on MISC1 bit 2:1 145 break; 146 case TIMING_3D_FORMAT_SIDE_BY_SIDE: 147 case TIMING_3D_FORMAT_SBS_SW_PACKED: 148 info_packet->sb[0] = 0x04; // Side-by-side 149 break; 150 default: 151 info_packet->sb[0] = 0x00; // No Stereo Video, Shall be cleared to 0x0. 152 break; 153 } 154 155 } 156 157 /* 05h = VSC SDP supporting 3D stereo, PSR2, and Pixel Encoding/Colorimetry Format indication. 158 * Added in DP1.3, a DP Source device is allowed to indicate the pixel encoding/colorimetry 159 * format to the DP Sink device with VSC SDP only when the DP Sink device supports it 160 * (i.e., VSC_SDP_EXTENSION_FOR_COLORIMETRY_SUPPORTED bit in the DPRX_FEATURE_ENUMERATION_LIST 161 * register (DPCD Address 02210h, bit 3) is set to 1). 162 * (Requires VSC_SDP_EXTENSION_FOR_COLORIMETRY_SUPPORTED bit set to 1 in DPCD 02210h. This 163 * DPCD register is exposed in the new Extended Receiver Capability field for DPCD Rev. 1.4 164 * (and higher). When MISC1. bit 6. is Set to 1, a Source device uses a VSC SDP to indicate 165 * the Pixel Encoding/Colorimetry Format and that a Sink device must ignore MISC1, bit 7, and 166 * MISC0, bits 7:1 (MISC1, bit 7. and MISC0, bits 7:1 become "don't care").) 167 */ 168 if (vscPacketRevision == 0x5) { 169 /* Secondary-data Packet ID = 0 */ 170 info_packet->hb0 = 0x00; 171 /* 07h - Packet Type Value indicating Video Stream Configuration packet */ 172 info_packet->hb1 = 0x07; 173 /* 05h = VSC SDP supporting 3D stereo, PSR2, and Pixel Encoding/Colorimetry Format indication. */ 174 info_packet->hb2 = 0x05; 175 /* 13h = VSC SDP supporting 3D stereo, + PSR2, + Pixel Encoding/Colorimetry Format indication (HB2 = 05h). */ 176 info_packet->hb3 = 0x13; 177 178 info_packet->valid = true; 179 180 /* Set VSC SDP fields for pixel encoding and colorimetry format from DP 1.3 specs 181 * Data Bytes DB 18~16 182 * Bits 3:0 (Colorimetry Format) | Bits 7:4 (Pixel Encoding) 183 * ---------------------------------------------------------------------------------------------------- 184 * 0x0 = sRGB | 0 = RGB 185 * 0x1 = RGB Wide Gamut Fixed Point 186 * 0x2 = RGB Wide Gamut Floating Point 187 * 0x3 = AdobeRGB 188 * 0x4 = DCI-P3 189 * 0x5 = CustomColorProfile 190 * (others reserved) 191 * ---------------------------------------------------------------------------------------------------- 192 * 0x0 = ITU-R BT.601 | 1 = YCbCr444 193 * 0x1 = ITU-R BT.709 194 * 0x2 = xvYCC601 195 * 0x3 = xvYCC709 196 * 0x4 = sYCC601 197 * 0x5 = AdobeYCC601 198 * 0x6 = ITU-R BT.2020 Y'cC'bcC'rc 199 * 0x7 = ITU-R BT.2020 Y'C'bC'r 200 * (others reserved) 201 * ---------------------------------------------------------------------------------------------------- 202 * 0x0 = ITU-R BT.601 | 2 = YCbCr422 203 * 0x1 = ITU-R BT.709 204 * 0x2 = xvYCC601 205 * 0x3 = xvYCC709 206 * 0x4 = sYCC601 207 * 0x5 = AdobeYCC601 208 * 0x6 = ITU-R BT.2020 Y'cC'bcC'rc 209 * 0x7 = ITU-R BT.2020 Y'C'bC'r 210 * (others reserved) 211 * ---------------------------------------------------------------------------------------------------- 212 * 0x0 = ITU-R BT.601 | 3 = YCbCr420 213 * 0x1 = ITU-R BT.709 214 * 0x2 = xvYCC601 215 * 0x3 = xvYCC709 216 * 0x4 = sYCC601 217 * 0x5 = AdobeYCC601 218 * 0x6 = ITU-R BT.2020 Y'cC'bcC'rc 219 * 0x7 = ITU-R BT.2020 Y'C'bC'r 220 * (others reserved) 221 * ---------------------------------------------------------------------------------------------------- 222 * 0x0 =DICOM Part14 Grayscale | 4 = Yonly 223 * Display Function 224 * (others reserved) 225 */ 226 227 /* Set Pixel Encoding */ 228 switch (stream->timing.pixel_encoding) { 229 case PIXEL_ENCODING_RGB: 230 pixelEncoding = 0x0; /* RGB = 0h */ 231 break; 232 case PIXEL_ENCODING_YCBCR444: 233 pixelEncoding = 0x1; /* YCbCr444 = 1h */ 234 break; 235 case PIXEL_ENCODING_YCBCR422: 236 pixelEncoding = 0x2; /* YCbCr422 = 2h */ 237 break; 238 case PIXEL_ENCODING_YCBCR420: 239 pixelEncoding = 0x3; /* YCbCr420 = 3h */ 240 break; 241 default: 242 pixelEncoding = 0x0; /* default RGB = 0h */ 243 break; 244 } 245 246 /* Set Colorimetry format based on pixel encoding */ 247 switch (stream->timing.pixel_encoding) { 248 case PIXEL_ENCODING_RGB: 249 if ((stream->output_color_space == COLOR_SPACE_SRGB) || 250 (stream->output_color_space == COLOR_SPACE_SRGB_LIMITED)) 251 colorimetryFormat = ColorimetryRGB_DP_sRGB; 252 else if (stream->output_color_space == COLOR_SPACE_ADOBERGB) 253 colorimetryFormat = ColorimetryRGB_DP_AdobeRGB; 254 else if ((stream->output_color_space == COLOR_SPACE_2020_RGB_FULLRANGE) || 255 (stream->output_color_space == COLOR_SPACE_2020_RGB_LIMITEDRANGE)) 256 colorimetryFormat = ColorimetryRGB_DP_ITU_R_BT2020RGB; 257 break; 258 259 case PIXEL_ENCODING_YCBCR444: 260 case PIXEL_ENCODING_YCBCR422: 261 case PIXEL_ENCODING_YCBCR420: 262 /* Note: xvYCC probably not supported correctly here on DP since colorspace translation 263 * loses distinction between BT601 vs xvYCC601 in translation 264 */ 265 if (stream->output_color_space == COLOR_SPACE_YCBCR601) 266 colorimetryFormat = ColorimetryYCC_DP_ITU601; 267 else if (stream->output_color_space == COLOR_SPACE_YCBCR709) 268 colorimetryFormat = ColorimetryYCC_DP_ITU709; 269 else if (stream->output_color_space == COLOR_SPACE_ADOBERGB) 270 colorimetryFormat = ColorimetryYCC_DP_AdobeYCC; 271 else if (stream->output_color_space == COLOR_SPACE_2020_YCBCR) 272 colorimetryFormat = ColorimetryYCC_DP_ITU2020YCbCr; 273 break; 274 275 default: 276 colorimetryFormat = ColorimetryRGB_DP_sRGB; 277 break; 278 } 279 280 info_packet->sb[16] = (pixelEncoding << 4) | colorimetryFormat; 281 282 /* Set color depth */ 283 switch (stream->timing.display_color_depth) { 284 case COLOR_DEPTH_666: 285 /* NOTE: This is actually not valid for YCbCr pixel encoding to have 6 bpc 286 * as of DP1.4 spec, but value of 0 probably reserved here for potential future use. 287 */ 288 info_packet->sb[17] = 0; 289 break; 290 case COLOR_DEPTH_888: 291 info_packet->sb[17] = 1; 292 break; 293 case COLOR_DEPTH_101010: 294 info_packet->sb[17] = 2; 295 break; 296 case COLOR_DEPTH_121212: 297 info_packet->sb[17] = 3; 298 break; 299 /*case COLOR_DEPTH_141414: -- NO SUCH FORMAT IN DP SPEC */ 300 case COLOR_DEPTH_161616: 301 info_packet->sb[17] = 4; 302 break; 303 default: 304 info_packet->sb[17] = 0; 305 break; 306 } 307 308 /* all YCbCr are always limited range */ 309 if ((stream->output_color_space == COLOR_SPACE_SRGB_LIMITED) || 310 (stream->output_color_space == COLOR_SPACE_2020_RGB_LIMITEDRANGE) || 311 (pixelEncoding != 0x0)) { 312 info_packet->sb[17] |= 0x80; /* DB17 bit 7 set to 1 for CEA timing. */ 313 } 314 315 /* Content Type (Bits 2:0) 316 * 0 = Not defined. 317 * 1 = Graphics. 318 * 2 = Photo. 319 * 3 = Video. 320 * 4 = Game. 321 */ 322 info_packet->sb[18] = 0; 323 } 324 325 } 326 327