1/* 2 * Copyright (c) 2016 Intel Corporation 3 * 4 * Permission to use, copy, modify, distribute, and sell this software and its 5 * documentation for any purpose is hereby granted without fee, provided that 6 * the above copyright notice appear in all copies and that both that copyright 7 * notice and this permission notice appear in supporting documentation, and 8 * that the name of the copyright holders not be used in advertising or 9 * publicity pertaining to distribution of the software without specific, 10 * written prior permission. The copyright holders make no representations 11 * about the suitability of this software for any purpose. It is provided "as 12 * is" without express or implied warranty. 13 * 14 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, 15 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO 16 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR 17 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, 18 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 19 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE 20 * OF THIS SOFTWARE. 21 */ 22 23#ifndef __DRM_CONNECTOR_H__ 24#define __DRM_CONNECTOR_H__ 25 26#include <linux/list.h> 27#include <linux/llist.h> 28#include <linux/ctype.h> 29#include <linux/hdmi.h> 30#include <linux/notifier.h> 31#include <drm/drm_mode_object.h> 32#include <drm/drm_util.h> 33#include <drm/drm_property.h> 34 35#include <uapi/drm/drm_mode.h> 36 37struct drm_connector_helper_funcs; 38struct drm_modeset_acquire_ctx; 39struct drm_device; 40struct drm_crtc; 41struct drm_encoder; 42struct drm_panel; 43struct drm_property; 44struct drm_property_blob; 45struct drm_printer; 46struct drm_privacy_screen; 47struct edid; 48struct i2c_adapter; 49 50enum drm_connector_force { 51 DRM_FORCE_UNSPECIFIED, 52 DRM_FORCE_OFF, 53 DRM_FORCE_ON, /* force on analog part normally */ 54 DRM_FORCE_ON_DIGITAL, /* for DVI-I use digital connector */ 55}; 56 57/** 58 * enum drm_connector_status - status for a &drm_connector 59 * 60 * This enum is used to track the connector status. There are no separate 61 * #defines for the uapi! 62 */ 63enum drm_connector_status { 64 /** 65 * @connector_status_connected: The connector is definitely connected to 66 * a sink device, and can be enabled. 67 */ 68 connector_status_connected = 1, 69 /** 70 * @connector_status_disconnected: The connector isn't connected to a 71 * sink device which can be autodetect. For digital outputs like DP or 72 * HDMI (which can be realiable probed) this means there's really 73 * nothing there. It is driver-dependent whether a connector with this 74 * status can be lit up or not. 75 */ 76 connector_status_disconnected = 2, 77 /** 78 * @connector_status_unknown: The connector's status could not be 79 * reliably detected. This happens when probing would either cause 80 * flicker (like load-detection when the connector is in use), or when a 81 * hardware resource isn't available (like when load-detection needs a 82 * free CRTC). It should be possible to light up the connector with one 83 * of the listed fallback modes. For default configuration userspace 84 * should only try to light up connectors with unknown status when 85 * there's not connector with @connector_status_connected. 86 */ 87 connector_status_unknown = 3, 88}; 89 90/** 91 * enum drm_connector_registration_state - userspace registration status for 92 * a &drm_connector 93 * 94 * This enum is used to track the status of initializing a connector and 95 * registering it with userspace, so that DRM can prevent bogus modesets on 96 * connectors that no longer exist. 97 */ 98enum drm_connector_registration_state { 99 /** 100 * @DRM_CONNECTOR_INITIALIZING: The connector has just been created, 101 * but has yet to be exposed to userspace. There should be no 102 * additional restrictions to how the state of this connector may be 103 * modified. 104 */ 105 DRM_CONNECTOR_INITIALIZING = 0, 106 107 /** 108 * @DRM_CONNECTOR_REGISTERED: The connector has been fully initialized 109 * and registered with sysfs, as such it has been exposed to 110 * userspace. There should be no additional restrictions to how the 111 * state of this connector may be modified. 112 */ 113 DRM_CONNECTOR_REGISTERED = 1, 114 115 /** 116 * @DRM_CONNECTOR_UNREGISTERED: The connector has either been exposed 117 * to userspace and has since been unregistered and removed from 118 * userspace, or the connector was unregistered before it had a chance 119 * to be exposed to userspace (e.g. still in the 120 * @DRM_CONNECTOR_INITIALIZING state). When a connector is 121 * unregistered, there are additional restrictions to how its state 122 * may be modified: 123 * 124 * - An unregistered connector may only have its DPMS changed from 125 * On->Off. Once DPMS is changed to Off, it may not be switched back 126 * to On. 127 * - Modesets are not allowed on unregistered connectors, unless they 128 * would result in disabling its assigned CRTCs. This means 129 * disabling a CRTC on an unregistered connector is OK, but enabling 130 * one is not. 131 * - Removing a CRTC from an unregistered connector is OK, but new 132 * CRTCs may never be assigned to an unregistered connector. 133 */ 134 DRM_CONNECTOR_UNREGISTERED = 2, 135}; 136 137enum subpixel_order { 138 SubPixelUnknown = 0, 139 SubPixelHorizontalRGB, 140 SubPixelHorizontalBGR, 141 SubPixelVerticalRGB, 142 SubPixelVerticalBGR, 143 SubPixelNone, 144 145}; 146 147/** 148 * enum drm_connector_tv_mode - Analog TV output mode 149 * 150 * This enum is used to indicate the TV output mode used on an analog TV 151 * connector. 152 * 153 * WARNING: The values of this enum is uABI since they're exposed in the 154 * "TV mode" connector property. 155 */ 156enum drm_connector_tv_mode { 157 /** 158 * @DRM_MODE_TV_MODE_NTSC: CCIR System M (aka 525-lines) 159 * together with the NTSC Color Encoding. 160 */ 161 DRM_MODE_TV_MODE_NTSC, 162 163 /** 164 * @DRM_MODE_TV_MODE_NTSC_443: Variant of 165 * @DRM_MODE_TV_MODE_NTSC. Uses a color subcarrier frequency 166 * of 4.43 MHz. 167 */ 168 DRM_MODE_TV_MODE_NTSC_443, 169 170 /** 171 * @DRM_MODE_TV_MODE_NTSC_J: Variant of @DRM_MODE_TV_MODE_NTSC 172 * used in Japan. Uses a black level equals to the blanking 173 * level. 174 */ 175 DRM_MODE_TV_MODE_NTSC_J, 176 177 /** 178 * @DRM_MODE_TV_MODE_PAL: CCIR System B together with the PAL 179 * color system. 180 */ 181 DRM_MODE_TV_MODE_PAL, 182 183 /** 184 * @DRM_MODE_TV_MODE_PAL_M: CCIR System M (aka 525-lines) 185 * together with the PAL color encoding 186 */ 187 DRM_MODE_TV_MODE_PAL_M, 188 189 /** 190 * @DRM_MODE_TV_MODE_PAL_N: CCIR System N together with the PAL 191 * color encoding. It uses 625 lines, but has a color subcarrier 192 * frequency of 3.58MHz, the SECAM color space, and narrower 193 * channels compared to most of the other PAL variants. 194 */ 195 DRM_MODE_TV_MODE_PAL_N, 196 197 /** 198 * @DRM_MODE_TV_MODE_SECAM: CCIR System B together with the 199 * SECAM color system. 200 */ 201 DRM_MODE_TV_MODE_SECAM, 202 203 /** 204 * @DRM_MODE_TV_MODE_MAX: Number of analog TV output modes. 205 * 206 * Internal implementation detail; this is not uABI. 207 */ 208 DRM_MODE_TV_MODE_MAX, 209}; 210 211/** 212 * struct drm_scrambling: sink's scrambling support. 213 */ 214struct drm_scrambling { 215 /** 216 * @supported: scrambling supported for rates > 340 Mhz. 217 */ 218 bool supported; 219 /** 220 * @low_rates: scrambling supported for rates <= 340 Mhz. 221 */ 222 bool low_rates; 223}; 224 225/* 226 * struct drm_scdc - Information about scdc capabilities of a HDMI 2.0 sink 227 * 228 * Provides SCDC register support and capabilities related information on a 229 * HDMI 2.0 sink. In case of a HDMI 1.4 sink, all parameter must be 0. 230 */ 231struct drm_scdc { 232 /** 233 * @supported: status control & data channel present. 234 */ 235 bool supported; 236 /** 237 * @read_request: sink is capable of generating scdc read request. 238 */ 239 bool read_request; 240 /** 241 * @scrambling: sink's scrambling capabilities 242 */ 243 struct drm_scrambling scrambling; 244}; 245 246/** 247 * struct drm_hdmi_dsc_cap - DSC capabilities of HDMI sink 248 * 249 * Describes the DSC support provided by HDMI 2.1 sink. 250 * The information is fetched fom additional HFVSDB blocks defined 251 * for HDMI 2.1. 252 */ 253struct drm_hdmi_dsc_cap { 254 /** @v_1p2: flag for dsc1.2 version support by sink */ 255 bool v_1p2; 256 257 /** @native_420: Does sink support DSC with 4:2:0 compression */ 258 bool native_420; 259 260 /** 261 * @all_bpp: Does sink support all bpp with 4:4:4: or 4:2:2 262 * compressed formats 263 */ 264 bool all_bpp; 265 266 /** 267 * @bpc_supported: compressed bpc supported by sink : 10, 12 or 16 bpc 268 */ 269 u8 bpc_supported; 270 271 /** @max_slices: maximum number of Horizontal slices supported by */ 272 u8 max_slices; 273 274 /** @clk_per_slice : max pixel clock in MHz supported per slice */ 275 int clk_per_slice; 276 277 /** @max_lanes : dsc max lanes supported for Fixed rate Link training */ 278 u8 max_lanes; 279 280 /** @max_frl_rate_per_lane : maximum frl rate with DSC per lane */ 281 u8 max_frl_rate_per_lane; 282 283 /** @total_chunk_kbytes: max size of chunks in KBs supported per line*/ 284 u8 total_chunk_kbytes; 285}; 286 287/** 288 * struct drm_hdmi_info - runtime information about the connected HDMI sink 289 * 290 * Describes if a given display supports advanced HDMI 2.0 features. 291 * This information is available in CEA-861-F extension blocks (like HF-VSDB). 292 */ 293struct drm_hdmi_info { 294 /** @scdc: sink's scdc support and capabilities */ 295 struct drm_scdc scdc; 296 297 /** 298 * @y420_vdb_modes: bitmap of modes which can support ycbcr420 299 * output only (not normal RGB/YCBCR444/422 outputs). The max VIC 300 * defined by the CEA-861-G spec is 219, so the size is 256 bits to map 301 * up to 256 VICs. 302 */ 303 unsigned long y420_vdb_modes[BITS_TO_LONGS(256)]; 304 305 /** 306 * @y420_cmdb_modes: bitmap of modes which can support ycbcr420 307 * output also, along with normal HDMI outputs. The max VIC defined by 308 * the CEA-861-G spec is 219, so the size is 256 bits to map up to 256 309 * VICs. 310 */ 311 unsigned long y420_cmdb_modes[BITS_TO_LONGS(256)]; 312 313 /** @y420_dc_modes: bitmap of deep color support index */ 314 u8 y420_dc_modes; 315 316 /** @max_frl_rate_per_lane: support fixed rate link */ 317 u8 max_frl_rate_per_lane; 318 319 /** @max_lanes: supported by sink */ 320 u8 max_lanes; 321 322 /** @dsc_cap: DSC capabilities of the sink */ 323 struct drm_hdmi_dsc_cap dsc_cap; 324}; 325 326/** 327 * enum drm_link_status - connector's link_status property value 328 * 329 * This enum is used as the connector's link status property value. 330 * It is set to the values defined in uapi. 331 * 332 * @DRM_LINK_STATUS_GOOD: DP Link is Good as a result of successful 333 * link training 334 * @DRM_LINK_STATUS_BAD: DP Link is BAD as a result of link training 335 * failure 336 */ 337enum drm_link_status { 338 DRM_LINK_STATUS_GOOD = DRM_MODE_LINK_STATUS_GOOD, 339 DRM_LINK_STATUS_BAD = DRM_MODE_LINK_STATUS_BAD, 340}; 341 342/** 343 * enum drm_panel_orientation - panel_orientation info for &drm_display_info 344 * 345 * This enum is used to track the (LCD) panel orientation. There are no 346 * separate #defines for the uapi! 347 * 348 * @DRM_MODE_PANEL_ORIENTATION_UNKNOWN: The drm driver has not provided any 349 * panel orientation information (normal 350 * for non panels) in this case the "panel 351 * orientation" connector prop will not be 352 * attached. 353 * @DRM_MODE_PANEL_ORIENTATION_NORMAL: The top side of the panel matches the 354 * top side of the device's casing. 355 * @DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP: The top side of the panel matches the 356 * bottom side of the device's casing, iow 357 * the panel is mounted upside-down. 358 * @DRM_MODE_PANEL_ORIENTATION_LEFT_UP: The left side of the panel matches the 359 * top side of the device's casing. 360 * @DRM_MODE_PANEL_ORIENTATION_RIGHT_UP: The right side of the panel matches the 361 * top side of the device's casing. 362 */ 363enum drm_panel_orientation { 364 DRM_MODE_PANEL_ORIENTATION_UNKNOWN = -1, 365 DRM_MODE_PANEL_ORIENTATION_NORMAL = 0, 366 DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP, 367 DRM_MODE_PANEL_ORIENTATION_LEFT_UP, 368 DRM_MODE_PANEL_ORIENTATION_RIGHT_UP, 369}; 370 371/** 372 * struct drm_monitor_range_info - Panel's Monitor range in EDID for 373 * &drm_display_info 374 * 375 * This struct is used to store a frequency range supported by panel 376 * as parsed from EDID's detailed monitor range descriptor block. 377 * 378 * @min_vfreq: This is the min supported refresh rate in Hz from 379 * EDID's detailed monitor range. 380 * @max_vfreq: This is the max supported refresh rate in Hz from 381 * EDID's detailed monitor range 382 */ 383struct drm_monitor_range_info { 384 u16 min_vfreq; 385 u16 max_vfreq; 386}; 387 388/** 389 * struct drm_luminance_range_info - Panel's luminance range for 390 * &drm_display_info. Calculated using data in EDID 391 * 392 * This struct is used to store a luminance range supported by panel 393 * as calculated using data from EDID's static hdr metadata. 394 * 395 * @min_luminance: This is the min supported luminance value 396 * 397 * @max_luminance: This is the max supported luminance value 398 */ 399struct drm_luminance_range_info { 400 u32 min_luminance; 401 u32 max_luminance; 402}; 403 404/** 405 * enum drm_privacy_screen_status - privacy screen status 406 * 407 * This enum is used to track and control the state of the integrated privacy 408 * screen present on some display panels, via the "privacy-screen sw-state" 409 * and "privacy-screen hw-state" properties. Note the _LOCKED enum values 410 * are only valid for the "privacy-screen hw-state" property. 411 * 412 * @PRIVACY_SCREEN_DISABLED: 413 * The privacy-screen on the panel is disabled 414 * @PRIVACY_SCREEN_ENABLED: 415 * The privacy-screen on the panel is enabled 416 * @PRIVACY_SCREEN_DISABLED_LOCKED: 417 * The privacy-screen on the panel is disabled and locked (cannot be changed) 418 * @PRIVACY_SCREEN_ENABLED_LOCKED: 419 * The privacy-screen on the panel is enabled and locked (cannot be changed) 420 */ 421enum drm_privacy_screen_status { 422 PRIVACY_SCREEN_DISABLED = 0, 423 PRIVACY_SCREEN_ENABLED, 424 PRIVACY_SCREEN_DISABLED_LOCKED, 425 PRIVACY_SCREEN_ENABLED_LOCKED, 426}; 427 428/** 429 * enum drm_colorspace - color space 430 * 431 * This enum is a consolidated colorimetry list supported by HDMI and 432 * DP protocol standard. The respective connectors will register 433 * a property with the subset of this list (supported by that 434 * respective protocol). Userspace will set the colorspace through 435 * a colorspace property which will be created and exposed to 436 * userspace. 437 * 438 * DP definitions come from the DP v2.0 spec 439 * HDMI definitions come from the CTA-861-H spec 440 * 441 * A note on YCC and RGB variants: 442 * 443 * Since userspace is not aware of the encoding on the wire 444 * (RGB or YCbCr), drivers are free to pick the appropriate 445 * variant, regardless of what userspace selects. E.g., if 446 * BT2020_RGB is selected by userspace a driver will pick 447 * BT2020_YCC if the encoding on the wire is YUV444 or YUV420. 448 * 449 * @DRM_MODE_COLORIMETRY_DEFAULT: 450 * Driver specific behavior. 451 * @DRM_MODE_COLORIMETRY_NO_DATA: 452 * Driver specific behavior. 453 * @DRM_MODE_COLORIMETRY_SMPTE_170M_YCC: 454 * (HDMI) 455 * SMPTE ST 170M colorimetry format 456 * @DRM_MODE_COLORIMETRY_BT709_YCC: 457 * (HDMI, DP) 458 * ITU-R BT.709 colorimetry format 459 * @DRM_MODE_COLORIMETRY_XVYCC_601: 460 * (HDMI, DP) 461 * xvYCC601 colorimetry format 462 * @DRM_MODE_COLORIMETRY_XVYCC_709: 463 * (HDMI, DP) 464 * xvYCC709 colorimetry format 465 * @DRM_MODE_COLORIMETRY_SYCC_601: 466 * (HDMI, DP) 467 * sYCC601 colorimetry format 468 * @DRM_MODE_COLORIMETRY_OPYCC_601: 469 * (HDMI, DP) 470 * opYCC601 colorimetry format 471 * @DRM_MODE_COLORIMETRY_OPRGB: 472 * (HDMI, DP) 473 * opRGB colorimetry format 474 * @DRM_MODE_COLORIMETRY_BT2020_CYCC: 475 * (HDMI, DP) 476 * ITU-R BT.2020 Y'c C'bc C'rc (constant luminance) colorimetry format 477 * @DRM_MODE_COLORIMETRY_BT2020_RGB: 478 * (HDMI, DP) 479 * ITU-R BT.2020 R' G' B' colorimetry format 480 * @DRM_MODE_COLORIMETRY_BT2020_YCC: 481 * (HDMI, DP) 482 * ITU-R BT.2020 Y' C'b C'r colorimetry format 483 * @DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65: 484 * (HDMI) 485 * SMPTE ST 2113 P3D65 colorimetry format 486 * @DRM_MODE_COLORIMETRY_DCI_P3_RGB_THEATER: 487 * (HDMI) 488 * SMPTE ST 2113 P3DCI colorimetry format 489 * @DRM_MODE_COLORIMETRY_RGB_WIDE_FIXED: 490 * (DP) 491 * RGB wide gamut fixed point colorimetry format 492 * @DRM_MODE_COLORIMETRY_RGB_WIDE_FLOAT: 493 * (DP) 494 * RGB wide gamut floating point 495 * (scRGB (IEC 61966-2-2)) colorimetry format 496 * @DRM_MODE_COLORIMETRY_BT601_YCC: 497 * (DP) 498 * ITU-R BT.601 colorimetry format 499 * The DP spec does not say whether this is the 525 or the 625 500 * line version. 501 */ 502enum drm_colorspace { 503 /* For Default case, driver will set the colorspace */ 504 DRM_MODE_COLORIMETRY_DEFAULT = 0, 505 /* CEA 861 Normal Colorimetry options */ 506 DRM_MODE_COLORIMETRY_NO_DATA = 0, 507 DRM_MODE_COLORIMETRY_SMPTE_170M_YCC = 1, 508 DRM_MODE_COLORIMETRY_BT709_YCC = 2, 509 /* CEA 861 Extended Colorimetry Options */ 510 DRM_MODE_COLORIMETRY_XVYCC_601 = 3, 511 DRM_MODE_COLORIMETRY_XVYCC_709 = 4, 512 DRM_MODE_COLORIMETRY_SYCC_601 = 5, 513 DRM_MODE_COLORIMETRY_OPYCC_601 = 6, 514 DRM_MODE_COLORIMETRY_OPRGB = 7, 515 DRM_MODE_COLORIMETRY_BT2020_CYCC = 8, 516 DRM_MODE_COLORIMETRY_BT2020_RGB = 9, 517 DRM_MODE_COLORIMETRY_BT2020_YCC = 10, 518 /* Additional Colorimetry extension added as part of CTA 861.G */ 519 DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65 = 11, 520 DRM_MODE_COLORIMETRY_DCI_P3_RGB_THEATER = 12, 521 /* Additional Colorimetry Options added for DP 1.4a VSC Colorimetry Format */ 522 DRM_MODE_COLORIMETRY_RGB_WIDE_FIXED = 13, 523 DRM_MODE_COLORIMETRY_RGB_WIDE_FLOAT = 14, 524 DRM_MODE_COLORIMETRY_BT601_YCC = 15, 525 /* not a valid value; merely used for counting */ 526 DRM_MODE_COLORIMETRY_COUNT 527}; 528 529/** 530 * enum drm_bus_flags - bus_flags info for &drm_display_info 531 * 532 * This enum defines signal polarities and clock edge information for signals on 533 * a bus as bitmask flags. 534 * 535 * The clock edge information is conveyed by two sets of symbols, 536 * DRM_BUS_FLAGS_*_DRIVE_\* and DRM_BUS_FLAGS_*_SAMPLE_\*. When this enum is 537 * used to describe a bus from the point of view of the transmitter, the 538 * \*_DRIVE_\* flags should be used. When used from the point of view of the 539 * receiver, the \*_SAMPLE_\* flags should be used. The \*_DRIVE_\* and 540 * \*_SAMPLE_\* flags alias each other, with the \*_SAMPLE_POSEDGE and 541 * \*_SAMPLE_NEGEDGE flags being equal to \*_DRIVE_NEGEDGE and \*_DRIVE_POSEDGE 542 * respectively. This simplifies code as signals are usually sampled on the 543 * opposite edge of the driving edge. Transmitters and receivers may however 544 * need to take other signal timings into account to convert between driving 545 * and sample edges. 546 */ 547enum drm_bus_flags { 548 /** 549 * @DRM_BUS_FLAG_DE_LOW: 550 * 551 * The Data Enable signal is active low 552 */ 553 DRM_BUS_FLAG_DE_LOW = BIT(0), 554 555 /** 556 * @DRM_BUS_FLAG_DE_HIGH: 557 * 558 * The Data Enable signal is active high 559 */ 560 DRM_BUS_FLAG_DE_HIGH = BIT(1), 561 562 /** 563 * @DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE: 564 * 565 * Data is driven on the rising edge of the pixel clock 566 */ 567 DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE = BIT(2), 568 569 /** 570 * @DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE: 571 * 572 * Data is driven on the falling edge of the pixel clock 573 */ 574 DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE = BIT(3), 575 576 /** 577 * @DRM_BUS_FLAG_PIXDATA_SAMPLE_POSEDGE: 578 * 579 * Data is sampled on the rising edge of the pixel clock 580 */ 581 DRM_BUS_FLAG_PIXDATA_SAMPLE_POSEDGE = DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE, 582 583 /** 584 * @DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE: 585 * 586 * Data is sampled on the falling edge of the pixel clock 587 */ 588 DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE = DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE, 589 590 /** 591 * @DRM_BUS_FLAG_DATA_MSB_TO_LSB: 592 * 593 * Data is transmitted MSB to LSB on the bus 594 */ 595 DRM_BUS_FLAG_DATA_MSB_TO_LSB = BIT(4), 596 597 /** 598 * @DRM_BUS_FLAG_DATA_LSB_TO_MSB: 599 * 600 * Data is transmitted LSB to MSB on the bus 601 */ 602 DRM_BUS_FLAG_DATA_LSB_TO_MSB = BIT(5), 603 604 /** 605 * @DRM_BUS_FLAG_SYNC_DRIVE_POSEDGE: 606 * 607 * Sync signals are driven on the rising edge of the pixel clock 608 */ 609 DRM_BUS_FLAG_SYNC_DRIVE_POSEDGE = BIT(6), 610 611 /** 612 * @DRM_BUS_FLAG_SYNC_DRIVE_NEGEDGE: 613 * 614 * Sync signals are driven on the falling edge of the pixel clock 615 */ 616 DRM_BUS_FLAG_SYNC_DRIVE_NEGEDGE = BIT(7), 617 618 /** 619 * @DRM_BUS_FLAG_SYNC_SAMPLE_POSEDGE: 620 * 621 * Sync signals are sampled on the rising edge of the pixel clock 622 */ 623 DRM_BUS_FLAG_SYNC_SAMPLE_POSEDGE = DRM_BUS_FLAG_SYNC_DRIVE_NEGEDGE, 624 625 /** 626 * @DRM_BUS_FLAG_SYNC_SAMPLE_NEGEDGE: 627 * 628 * Sync signals are sampled on the falling edge of the pixel clock 629 */ 630 DRM_BUS_FLAG_SYNC_SAMPLE_NEGEDGE = DRM_BUS_FLAG_SYNC_DRIVE_POSEDGE, 631 632 /** 633 * @DRM_BUS_FLAG_SHARP_SIGNALS: 634 * 635 * Set if the Sharp-specific signals (SPL, CLS, PS, REV) must be used 636 */ 637 DRM_BUS_FLAG_SHARP_SIGNALS = BIT(8), 638}; 639 640/** 641 * struct drm_display_info - runtime data about the connected sink 642 * 643 * Describes a given display (e.g. CRT or flat panel) and its limitations. For 644 * fixed display sinks like built-in panels there's not much difference between 645 * this and &struct drm_connector. But for sinks with a real cable this 646 * structure is meant to describe all the things at the other end of the cable. 647 * 648 * For sinks which provide an EDID this can be filled out by calling 649 * drm_add_edid_modes(). 650 */ 651struct drm_display_info { 652 /** 653 * @width_mm: Physical width in mm. 654 */ 655 unsigned int width_mm; 656 657 /** 658 * @height_mm: Physical height in mm. 659 */ 660 unsigned int height_mm; 661 662 /** 663 * @bpc: Maximum bits per color channel. Used by HDMI and DP outputs. 664 */ 665 unsigned int bpc; 666 667 /** 668 * @subpixel_order: Subpixel order of LCD panels. 669 */ 670 enum subpixel_order subpixel_order; 671 672#define DRM_COLOR_FORMAT_RGB444 (1<<0) 673#define DRM_COLOR_FORMAT_YCBCR444 (1<<1) 674#define DRM_COLOR_FORMAT_YCBCR422 (1<<2) 675#define DRM_COLOR_FORMAT_YCBCR420 (1<<3) 676 677 /** 678 * @panel_orientation: Read only connector property for built-in panels, 679 * indicating the orientation of the panel vs the device's casing. 680 * drm_connector_init() sets this to DRM_MODE_PANEL_ORIENTATION_UNKNOWN. 681 * When not UNKNOWN this gets used by the drm_fb_helpers to rotate the 682 * fb to compensate and gets exported as prop to userspace. 683 */ 684 int panel_orientation; 685 686 /** 687 * @color_formats: HDMI Color formats, selects between RGB and YCrCb 688 * modes. Used DRM_COLOR_FORMAT\_ defines, which are _not_ the same ones 689 * as used to describe the pixel format in framebuffers, and also don't 690 * match the formats in @bus_formats which are shared with v4l. 691 */ 692 u32 color_formats; 693 694 /** 695 * @bus_formats: Pixel data format on the wire, somewhat redundant with 696 * @color_formats. Array of size @num_bus_formats encoded using 697 * MEDIA_BUS_FMT\_ defines shared with v4l and media drivers. 698 */ 699 const u32 *bus_formats; 700 /** 701 * @num_bus_formats: Size of @bus_formats array. 702 */ 703 unsigned int num_bus_formats; 704 705 /** 706 * @bus_flags: Additional information (like pixel signal polarity) for 707 * the pixel data on the bus, using &enum drm_bus_flags values 708 * DRM_BUS_FLAGS\_. 709 */ 710 u32 bus_flags; 711 712 /** 713 * @max_tmds_clock: Maximum TMDS clock rate supported by the 714 * sink in kHz. 0 means undefined. 715 */ 716 int max_tmds_clock; 717 718 /** 719 * @dvi_dual: Dual-link DVI sink? 720 */ 721 bool dvi_dual; 722 723 /** 724 * @is_hdmi: True if the sink is an HDMI device. 725 * 726 * This field shall be used instead of calling 727 * drm_detect_hdmi_monitor() when possible. 728 */ 729 bool is_hdmi; 730 731 /** 732 * @has_audio: True if the sink supports audio. 733 * 734 * This field shall be used instead of calling 735 * drm_detect_monitor_audio() when possible. 736 */ 737 bool has_audio; 738 739 /** 740 * @has_hdmi_infoframe: Does the sink support the HDMI infoframe? 741 */ 742 bool has_hdmi_infoframe; 743 744 /** 745 * @rgb_quant_range_selectable: Does the sink support selecting 746 * the RGB quantization range? 747 */ 748 bool rgb_quant_range_selectable; 749 750 /** 751 * @edid_hdmi_rgb444_dc_modes: Mask of supported hdmi deep color modes 752 * in RGB 4:4:4. Even more stuff redundant with @bus_formats. 753 */ 754 u8 edid_hdmi_rgb444_dc_modes; 755 756 /** 757 * @edid_hdmi_ycbcr444_dc_modes: Mask of supported hdmi deep color 758 * modes in YCbCr 4:4:4. Even more stuff redundant with @bus_formats. 759 */ 760 u8 edid_hdmi_ycbcr444_dc_modes; 761 762 /** 763 * @cea_rev: CEA revision of the HDMI sink. 764 */ 765 u8 cea_rev; 766 767 /** 768 * @hdmi: advance features of a HDMI sink. 769 */ 770 struct drm_hdmi_info hdmi; 771 772 /** 773 * @non_desktop: Non desktop display (HMD). 774 */ 775 bool non_desktop; 776 777 /** 778 * @monitor_range: Frequency range supported by monitor range descriptor 779 */ 780 struct drm_monitor_range_info monitor_range; 781 782 /** 783 * @luminance_range: Luminance range supported by panel 784 */ 785 struct drm_luminance_range_info luminance_range; 786 787 /** 788 * @mso_stream_count: eDP Multi-SST Operation (MSO) stream count from 789 * the DisplayID VESA vendor block. 0 for conventional Single-Stream 790 * Transport (SST), or 2 or 4 MSO streams. 791 */ 792 u8 mso_stream_count; 793 794 /** 795 * @mso_pixel_overlap: eDP MSO segment pixel overlap, 0-8 pixels. 796 */ 797 u8 mso_pixel_overlap; 798 799 /** 800 * @max_dsc_bpp: Maximum DSC target bitrate, if it is set to 0 the 801 * monitor's default value is used instead. 802 */ 803 u32 max_dsc_bpp; 804 805 /** 806 * @vics: Array of vics_len VICs. Internal to EDID parsing. 807 */ 808 u8 *vics; 809 810 /** 811 * @vics_len: Number of elements in vics. Internal to EDID parsing. 812 */ 813 int vics_len; 814 815 /** 816 * @quirks: EDID based quirks. Internal to EDID parsing. 817 */ 818 u32 quirks; 819}; 820 821int drm_display_info_set_bus_formats(struct drm_display_info *info, 822 const u32 *formats, 823 unsigned int num_formats); 824 825/** 826 * struct drm_connector_tv_margins - TV connector related margins 827 * 828 * Describes the margins in pixels to put around the image on TV 829 * connectors to deal with overscan. 830 */ 831struct drm_connector_tv_margins { 832 /** 833 * @bottom: Bottom margin in pixels. 834 */ 835 unsigned int bottom; 836 837 /** 838 * @left: Left margin in pixels. 839 */ 840 unsigned int left; 841 842 /** 843 * @right: Right margin in pixels. 844 */ 845 unsigned int right; 846 847 /** 848 * @top: Top margin in pixels. 849 */ 850 unsigned int top; 851}; 852 853/** 854 * struct drm_tv_connector_state - TV connector related states 855 * @select_subconnector: selected subconnector 856 * @subconnector: detected subconnector 857 * @margins: TV margins 858 * @legacy_mode: Legacy TV mode, driver specific value 859 * @mode: TV mode 860 * @brightness: brightness in percent 861 * @contrast: contrast in percent 862 * @flicker_reduction: flicker reduction in percent 863 * @overscan: overscan in percent 864 * @saturation: saturation in percent 865 * @hue: hue in percent 866 */ 867struct drm_tv_connector_state { 868 enum drm_mode_subconnector select_subconnector; 869 enum drm_mode_subconnector subconnector; 870 struct drm_connector_tv_margins margins; 871 unsigned int legacy_mode; 872 unsigned int mode; 873 unsigned int brightness; 874 unsigned int contrast; 875 unsigned int flicker_reduction; 876 unsigned int overscan; 877 unsigned int saturation; 878 unsigned int hue; 879}; 880 881/** 882 * struct drm_connector_state - mutable connector state 883 */ 884struct drm_connector_state { 885 /** @connector: backpointer to the connector */ 886 struct drm_connector *connector; 887 888 /** 889 * @crtc: CRTC to connect connector to, NULL if disabled. 890 * 891 * Do not change this directly, use drm_atomic_set_crtc_for_connector() 892 * instead. 893 */ 894 struct drm_crtc *crtc; 895 896 /** 897 * @best_encoder: 898 * 899 * Used by the atomic helpers to select the encoder, through the 900 * &drm_connector_helper_funcs.atomic_best_encoder or 901 * &drm_connector_helper_funcs.best_encoder callbacks. 902 * 903 * This is also used in the atomic helpers to map encoders to their 904 * current and previous connectors, see 905 * drm_atomic_get_old_connector_for_encoder() and 906 * drm_atomic_get_new_connector_for_encoder(). 907 * 908 * NOTE: Atomic drivers must fill this out (either themselves or through 909 * helpers), for otherwise the GETCONNECTOR and GETENCODER IOCTLs will 910 * not return correct data to userspace. 911 */ 912 struct drm_encoder *best_encoder; 913 914 /** 915 * @link_status: Connector link_status to keep track of whether link is 916 * GOOD or BAD to notify userspace if retraining is necessary. 917 */ 918 enum drm_link_status link_status; 919 920 /** @state: backpointer to global drm_atomic_state */ 921 struct drm_atomic_state *state; 922 923 /** 924 * @commit: Tracks the pending commit to prevent use-after-free conditions. 925 * 926 * Is only set when @crtc is NULL. 927 */ 928 struct drm_crtc_commit *commit; 929 930 /** @tv: TV connector state */ 931 struct drm_tv_connector_state tv; 932 933 /** 934 * @self_refresh_aware: 935 * 936 * This tracks whether a connector is aware of the self refresh state. 937 * It should be set to true for those connector implementations which 938 * understand the self refresh state. This is needed since the crtc 939 * registers the self refresh helpers and it doesn't know if the 940 * connectors downstream have implemented self refresh entry/exit. 941 * 942 * Drivers should set this to true in atomic_check if they know how to 943 * handle self_refresh requests. 944 */ 945 bool self_refresh_aware; 946 947 /** 948 * @picture_aspect_ratio: Connector property to control the 949 * HDMI infoframe aspect ratio setting. 950 * 951 * The %DRM_MODE_PICTURE_ASPECT_\* values much match the 952 * values for &enum hdmi_picture_aspect 953 */ 954 enum hdmi_picture_aspect picture_aspect_ratio; 955 956 /** 957 * @content_type: Connector property to control the 958 * HDMI infoframe content type setting. 959 * The %DRM_MODE_CONTENT_TYPE_\* values much 960 * match the values. 961 */ 962 unsigned int content_type; 963 964 /** 965 * @hdcp_content_type: Connector property to pass the type of 966 * protected content. This is most commonly used for HDCP. 967 */ 968 unsigned int hdcp_content_type; 969 970 /** 971 * @scaling_mode: Connector property to control the 972 * upscaling, mostly used for built-in panels. 973 */ 974 unsigned int scaling_mode; 975 976 /** 977 * @content_protection: Connector property to request content 978 * protection. This is most commonly used for HDCP. 979 */ 980 unsigned int content_protection; 981 982 /** 983 * @colorspace: State variable for Connector property to request 984 * colorspace change on Sink. This is most commonly used to switch 985 * to wider color gamuts like BT2020. 986 */ 987 enum drm_colorspace colorspace; 988 989 /** 990 * @writeback_job: Writeback job for writeback connectors 991 * 992 * Holds the framebuffer and out-fence for a writeback connector. As 993 * the writeback completion may be asynchronous to the normal commit 994 * cycle, the writeback job lifetime is managed separately from the 995 * normal atomic state by this object. 996 * 997 * See also: drm_writeback_queue_job() and 998 * drm_writeback_signal_completion() 999 */ 1000 struct drm_writeback_job *writeback_job; 1001 1002 /** 1003 * @max_requested_bpc: Connector property to limit the maximum bit 1004 * depth of the pixels. 1005 */ 1006 u8 max_requested_bpc; 1007 1008 /** 1009 * @max_bpc: Connector max_bpc based on the requested max_bpc property 1010 * and the connector bpc limitations obtained from edid. 1011 */ 1012 u8 max_bpc; 1013 1014 /** 1015 * @privacy_screen_sw_state: See :ref:`Standard Connector 1016 * Properties<standard_connector_properties>` 1017 */ 1018 enum drm_privacy_screen_status privacy_screen_sw_state; 1019 1020 /** 1021 * @hdr_output_metadata: 1022 * DRM blob property for HDR output metadata 1023 */ 1024 struct drm_property_blob *hdr_output_metadata; 1025}; 1026 1027/** 1028 * struct drm_connector_funcs - control connectors on a given device 1029 * 1030 * Each CRTC may have one or more connectors attached to it. The functions 1031 * below allow the core DRM code to control connectors, enumerate available modes, 1032 * etc. 1033 */ 1034struct drm_connector_funcs { 1035 /** 1036 * @dpms: 1037 * 1038 * Legacy entry point to set the per-connector DPMS state. Legacy DPMS 1039 * is exposed as a standard property on the connector, but diverted to 1040 * this callback in the drm core. Note that atomic drivers don't 1041 * implement the 4 level DPMS support on the connector any more, but 1042 * instead only have an on/off "ACTIVE" property on the CRTC object. 1043 * 1044 * This hook is not used by atomic drivers, remapping of the legacy DPMS 1045 * property is entirely handled in the DRM core. 1046 * 1047 * RETURNS: 1048 * 1049 * 0 on success or a negative error code on failure. 1050 */ 1051 int (*dpms)(struct drm_connector *connector, int mode); 1052 1053 /** 1054 * @reset: 1055 * 1056 * Reset connector hardware and software state to off. This function isn't 1057 * called by the core directly, only through drm_mode_config_reset(). 1058 * It's not a helper hook only for historical reasons. 1059 * 1060 * Atomic drivers can use drm_atomic_helper_connector_reset() to reset 1061 * atomic state using this hook. 1062 */ 1063 void (*reset)(struct drm_connector *connector); 1064 1065 /** 1066 * @detect: 1067 * 1068 * Check to see if anything is attached to the connector. The parameter 1069 * force is set to false whilst polling, true when checking the 1070 * connector due to a user request. force can be used by the driver to 1071 * avoid expensive, destructive operations during automated probing. 1072 * 1073 * This callback is optional, if not implemented the connector will be 1074 * considered as always being attached. 1075 * 1076 * FIXME: 1077 * 1078 * Note that this hook is only called by the probe helper. It's not in 1079 * the helper library vtable purely for historical reasons. The only DRM 1080 * core entry point to probe connector state is @fill_modes. 1081 * 1082 * Note that the helper library will already hold 1083 * &drm_mode_config.connection_mutex. Drivers which need to grab additional 1084 * locks to avoid races with concurrent modeset changes need to use 1085 * &drm_connector_helper_funcs.detect_ctx instead. 1086 * 1087 * Also note that this callback can be called no matter the 1088 * state the connector is in. Drivers that need the underlying 1089 * device to be powered to perform the detection will first need 1090 * to make sure it's been properly enabled. 1091 * 1092 * RETURNS: 1093 * 1094 * drm_connector_status indicating the connector's status. 1095 */ 1096 enum drm_connector_status (*detect)(struct drm_connector *connector, 1097 bool force); 1098 1099 /** 1100 * @force: 1101 * 1102 * This function is called to update internal encoder state when the 1103 * connector is forced to a certain state by userspace, either through 1104 * the sysfs interfaces or on the kernel cmdline. In that case the 1105 * @detect callback isn't called. 1106 * 1107 * FIXME: 1108 * 1109 * Note that this hook is only called by the probe helper. It's not in 1110 * the helper library vtable purely for historical reasons. The only DRM 1111 * core entry point to probe connector state is @fill_modes. 1112 */ 1113 void (*force)(struct drm_connector *connector); 1114 1115 /** 1116 * @fill_modes: 1117 * 1118 * Entry point for output detection and basic mode validation. The 1119 * driver should reprobe the output if needed (e.g. when hotplug 1120 * handling is unreliable), add all detected modes to &drm_connector.modes 1121 * and filter out any the device can't support in any configuration. It 1122 * also needs to filter out any modes wider or higher than the 1123 * parameters max_width and max_height indicate. 1124 * 1125 * The drivers must also prune any modes no longer valid from 1126 * &drm_connector.modes. Furthermore it must update 1127 * &drm_connector.status and &drm_connector.edid. If no EDID has been 1128 * received for this output connector->edid must be NULL. 1129 * 1130 * Drivers using the probe helpers should use 1131 * drm_helper_probe_single_connector_modes() to implement this 1132 * function. 1133 * 1134 * RETURNS: 1135 * 1136 * The number of modes detected and filled into &drm_connector.modes. 1137 */ 1138 int (*fill_modes)(struct drm_connector *connector, uint32_t max_width, uint32_t max_height); 1139 1140 /** 1141 * @set_property: 1142 * 1143 * This is the legacy entry point to update a property attached to the 1144 * connector. 1145 * 1146 * This callback is optional if the driver does not support any legacy 1147 * driver-private properties. For atomic drivers it is not used because 1148 * property handling is done entirely in the DRM core. 1149 * 1150 * RETURNS: 1151 * 1152 * 0 on success or a negative error code on failure. 1153 */ 1154 int (*set_property)(struct drm_connector *connector, struct drm_property *property, 1155 uint64_t val); 1156 1157 /** 1158 * @late_register: 1159 * 1160 * This optional hook can be used to register additional userspace 1161 * interfaces attached to the connector, light backlight control, i2c, 1162 * DP aux or similar interfaces. It is called late in the driver load 1163 * sequence from drm_connector_register() when registering all the 1164 * core drm connector interfaces. Everything added from this callback 1165 * should be unregistered in the early_unregister callback. 1166 * 1167 * This is called while holding &drm_connector.mutex. 1168 * 1169 * Returns: 1170 * 1171 * 0 on success, or a negative error code on failure. 1172 */ 1173 int (*late_register)(struct drm_connector *connector); 1174 1175 /** 1176 * @early_unregister: 1177 * 1178 * This optional hook should be used to unregister the additional 1179 * userspace interfaces attached to the connector from 1180 * late_register(). It is called from drm_connector_unregister(), 1181 * early in the driver unload sequence to disable userspace access 1182 * before data structures are torndown. 1183 * 1184 * This is called while holding &drm_connector.mutex. 1185 */ 1186 void (*early_unregister)(struct drm_connector *connector); 1187 1188 /** 1189 * @destroy: 1190 * 1191 * Clean up connector resources. This is called at driver unload time 1192 * through drm_mode_config_cleanup(). It can also be called at runtime 1193 * when a connector is being hot-unplugged for drivers that support 1194 * connector hotplugging (e.g. DisplayPort MST). 1195 */ 1196 void (*destroy)(struct drm_connector *connector); 1197 1198 /** 1199 * @atomic_duplicate_state: 1200 * 1201 * Duplicate the current atomic state for this connector and return it. 1202 * The core and helpers guarantee that any atomic state duplicated with 1203 * this hook and still owned by the caller (i.e. not transferred to the 1204 * driver by calling &drm_mode_config_funcs.atomic_commit) will be 1205 * cleaned up by calling the @atomic_destroy_state hook in this 1206 * structure. 1207 * 1208 * This callback is mandatory for atomic drivers. 1209 * 1210 * Atomic drivers which don't subclass &struct drm_connector_state should use 1211 * drm_atomic_helper_connector_duplicate_state(). Drivers that subclass the 1212 * state structure to extend it with driver-private state should use 1213 * __drm_atomic_helper_connector_duplicate_state() to make sure shared state is 1214 * duplicated in a consistent fashion across drivers. 1215 * 1216 * It is an error to call this hook before &drm_connector.state has been 1217 * initialized correctly. 1218 * 1219 * NOTE: 1220 * 1221 * If the duplicate state references refcounted resources this hook must 1222 * acquire a reference for each of them. The driver must release these 1223 * references again in @atomic_destroy_state. 1224 * 1225 * RETURNS: 1226 * 1227 * Duplicated atomic state or NULL when the allocation failed. 1228 */ 1229 struct drm_connector_state *(*atomic_duplicate_state)(struct drm_connector *connector); 1230 1231 /** 1232 * @atomic_destroy_state: 1233 * 1234 * Destroy a state duplicated with @atomic_duplicate_state and release 1235 * or unreference all resources it references 1236 * 1237 * This callback is mandatory for atomic drivers. 1238 */ 1239 void (*atomic_destroy_state)(struct drm_connector *connector, 1240 struct drm_connector_state *state); 1241 1242 /** 1243 * @atomic_set_property: 1244 * 1245 * Decode a driver-private property value and store the decoded value 1246 * into the passed-in state structure. Since the atomic core decodes all 1247 * standardized properties (even for extensions beyond the core set of 1248 * properties which might not be implemented by all drivers) this 1249 * requires drivers to subclass the state structure. 1250 * 1251 * Such driver-private properties should really only be implemented for 1252 * truly hardware/vendor specific state. Instead it is preferred to 1253 * standardize atomic extension and decode the properties used to expose 1254 * such an extension in the core. 1255 * 1256 * Do not call this function directly, use 1257 * drm_atomic_connector_set_property() instead. 1258 * 1259 * This callback is optional if the driver does not support any 1260 * driver-private atomic properties. 1261 * 1262 * NOTE: 1263 * 1264 * This function is called in the state assembly phase of atomic 1265 * modesets, which can be aborted for any reason (including on 1266 * userspace's request to just check whether a configuration would be 1267 * possible). Drivers MUST NOT touch any persistent state (hardware or 1268 * software) or data structures except the passed in @state parameter. 1269 * 1270 * Also since userspace controls in which order properties are set this 1271 * function must not do any input validation (since the state update is 1272 * incomplete and hence likely inconsistent). Instead any such input 1273 * validation must be done in the various atomic_check callbacks. 1274 * 1275 * RETURNS: 1276 * 1277 * 0 if the property has been found, -EINVAL if the property isn't 1278 * implemented by the driver (which shouldn't ever happen, the core only 1279 * asks for properties attached to this connector). No other validation 1280 * is allowed by the driver. The core already checks that the property 1281 * value is within the range (integer, valid enum value, ...) the driver 1282 * set when registering the property. 1283 */ 1284 int (*atomic_set_property)(struct drm_connector *connector, 1285 struct drm_connector_state *state, 1286 struct drm_property *property, 1287 uint64_t val); 1288 1289 /** 1290 * @atomic_get_property: 1291 * 1292 * Reads out the decoded driver-private property. This is used to 1293 * implement the GETCONNECTOR IOCTL. 1294 * 1295 * Do not call this function directly, use 1296 * drm_atomic_connector_get_property() instead. 1297 * 1298 * This callback is optional if the driver does not support any 1299 * driver-private atomic properties. 1300 * 1301 * RETURNS: 1302 * 1303 * 0 on success, -EINVAL if the property isn't implemented by the 1304 * driver (which shouldn't ever happen, the core only asks for 1305 * properties attached to this connector). 1306 */ 1307 int (*atomic_get_property)(struct drm_connector *connector, 1308 const struct drm_connector_state *state, 1309 struct drm_property *property, 1310 uint64_t *val); 1311 1312 /** 1313 * @atomic_print_state: 1314 * 1315 * If driver subclasses &struct drm_connector_state, it should implement 1316 * this optional hook for printing additional driver specific state. 1317 * 1318 * Do not call this directly, use drm_atomic_connector_print_state() 1319 * instead. 1320 */ 1321 void (*atomic_print_state)(struct drm_printer *p, 1322 const struct drm_connector_state *state); 1323 1324 /** 1325 * @oob_hotplug_event: 1326 * 1327 * This will get called when a hotplug-event for a drm-connector 1328 * has been received from a source outside the display driver / device. 1329 */ 1330 void (*oob_hotplug_event)(struct drm_connector *connector); 1331 1332 /** 1333 * @debugfs_init: 1334 * 1335 * Allows connectors to create connector-specific debugfs files. 1336 */ 1337 void (*debugfs_init)(struct drm_connector *connector, struct dentry *root); 1338}; 1339 1340/** 1341 * struct drm_cmdline_mode - DRM Mode passed through the kernel command-line 1342 * 1343 * Each connector can have an initial mode with additional options 1344 * passed through the kernel command line. This structure allows to 1345 * express those parameters and will be filled by the command-line 1346 * parser. 1347 */ 1348struct drm_cmdline_mode { 1349 /** 1350 * @name: 1351 * 1352 * Name of the mode. 1353 */ 1354 char name[DRM_DISPLAY_MODE_LEN]; 1355 1356 /** 1357 * @specified: 1358 * 1359 * Has a mode been read from the command-line? 1360 */ 1361 bool specified; 1362 1363 /** 1364 * @refresh_specified: 1365 * 1366 * Did the mode have a preferred refresh rate? 1367 */ 1368 bool refresh_specified; 1369 1370 /** 1371 * @bpp_specified: 1372 * 1373 * Did the mode have a preferred BPP? 1374 */ 1375 bool bpp_specified; 1376 1377 /** 1378 * @pixel_clock: 1379 * 1380 * Pixel Clock in kHz. Optional. 1381 */ 1382 unsigned int pixel_clock; 1383 1384 /** 1385 * @xres: 1386 * 1387 * Active resolution on the X axis, in pixels. 1388 */ 1389 int xres; 1390 1391 /** 1392 * @yres: 1393 * 1394 * Active resolution on the Y axis, in pixels. 1395 */ 1396 int yres; 1397 1398 /** 1399 * @bpp: 1400 * 1401 * Bits per pixels for the mode. 1402 */ 1403 int bpp; 1404 1405 /** 1406 * @refresh: 1407 * 1408 * Refresh rate, in Hertz. 1409 */ 1410 int refresh; 1411 1412 /** 1413 * @rb: 1414 * 1415 * Do we need to use reduced blanking? 1416 */ 1417 bool rb; 1418 1419 /** 1420 * @interlace: 1421 * 1422 * The mode is interlaced. 1423 */ 1424 bool interlace; 1425 1426 /** 1427 * @cvt: 1428 * 1429 * The timings will be calculated using the VESA Coordinated 1430 * Video Timings instead of looking up the mode from a table. 1431 */ 1432 bool cvt; 1433 1434 /** 1435 * @margins: 1436 * 1437 * Add margins to the mode calculation (1.8% of xres rounded 1438 * down to 8 pixels and 1.8% of yres). 1439 */ 1440 bool margins; 1441 1442 /** 1443 * @force: 1444 * 1445 * Ignore the hotplug state of the connector, and force its 1446 * state to one of the DRM_FORCE_* values. 1447 */ 1448 enum drm_connector_force force; 1449 1450 /** 1451 * @rotation_reflection: 1452 * 1453 * Initial rotation and reflection of the mode setup from the 1454 * command line. See DRM_MODE_ROTATE_* and 1455 * DRM_MODE_REFLECT_*. The only rotations supported are 1456 * DRM_MODE_ROTATE_0 and DRM_MODE_ROTATE_180. 1457 */ 1458 unsigned int rotation_reflection; 1459 1460 /** 1461 * @panel_orientation: 1462 * 1463 * drm-connector "panel orientation" property override value, 1464 * DRM_MODE_PANEL_ORIENTATION_UNKNOWN if not set. 1465 */ 1466 enum drm_panel_orientation panel_orientation; 1467 1468 /** 1469 * @tv_margins: TV margins to apply to the mode. 1470 */ 1471 struct drm_connector_tv_margins tv_margins; 1472 1473 /** 1474 * @tv_mode: TV mode standard. See DRM_MODE_TV_MODE_*. 1475 */ 1476 enum drm_connector_tv_mode tv_mode; 1477 1478 /** 1479 * @tv_mode_specified: 1480 * 1481 * Did the mode have a preferred TV mode? 1482 */ 1483 bool tv_mode_specified; 1484}; 1485 1486/** 1487 * struct drm_connector - central DRM connector control structure 1488 * 1489 * Each connector may be connected to one or more CRTCs, or may be clonable by 1490 * another connector if they can share a CRTC. Each connector also has a specific 1491 * position in the broader display (referred to as a 'screen' though it could 1492 * span multiple monitors). 1493 */ 1494struct drm_connector { 1495 /** @dev: parent DRM device */ 1496 struct drm_device *dev; 1497 /** @kdev: kernel device for sysfs attributes */ 1498 struct device *kdev; 1499 /** @attr: sysfs attributes */ 1500 struct device_attribute *attr; 1501 /** 1502 * @fwnode: associated fwnode supplied by platform firmware 1503 * 1504 * Drivers can set this to associate a fwnode with a connector, drivers 1505 * are expected to get a reference on the fwnode when setting this. 1506 * drm_connector_cleanup() will call fwnode_handle_put() on this. 1507 */ 1508 struct fwnode_handle *fwnode; 1509 1510 /** 1511 * @head: 1512 * 1513 * List of all connectors on a @dev, linked from 1514 * &drm_mode_config.connector_list. Protected by 1515 * &drm_mode_config.connector_list_lock, but please only use 1516 * &drm_connector_list_iter to walk this list. 1517 */ 1518 struct list_head head; 1519 1520 /** 1521 * @global_connector_list_entry: 1522 * 1523 * Connector entry in the global connector-list, used by 1524 * drm_connector_find_by_fwnode(). 1525 */ 1526 struct list_head global_connector_list_entry; 1527 1528 /** @base: base KMS object */ 1529 struct drm_mode_object base; 1530 1531 /** @name: human readable name, can be overwritten by the driver */ 1532 char *name; 1533 1534 /** 1535 * @mutex: Lock for general connector state, but currently only protects 1536 * @registered. Most of the connector state is still protected by 1537 * &drm_mode_config.mutex. 1538 */ 1539 struct mutex mutex; 1540 1541 /** 1542 * @index: Compacted connector index, which matches the position inside 1543 * the mode_config.list for drivers not supporting hot-add/removing. Can 1544 * be used as an array index. It is invariant over the lifetime of the 1545 * connector. 1546 */ 1547 unsigned index; 1548 1549 /** 1550 * @connector_type: 1551 * one of the DRM_MODE_CONNECTOR_<foo> types from drm_mode.h 1552 */ 1553 int connector_type; 1554 /** @connector_type_id: index into connector type enum */ 1555 int connector_type_id; 1556 /** 1557 * @interlace_allowed: 1558 * Can this connector handle interlaced modes? Only used by 1559 * drm_helper_probe_single_connector_modes() for mode filtering. 1560 */ 1561 bool interlace_allowed; 1562 /** 1563 * @doublescan_allowed: 1564 * Can this connector handle doublescan? Only used by 1565 * drm_helper_probe_single_connector_modes() for mode filtering. 1566 */ 1567 bool doublescan_allowed; 1568 /** 1569 * @stereo_allowed: 1570 * Can this connector handle stereo modes? Only used by 1571 * drm_helper_probe_single_connector_modes() for mode filtering. 1572 */ 1573 bool stereo_allowed; 1574 1575 /** 1576 * @ycbcr_420_allowed : This bool indicates if this connector is 1577 * capable of handling YCBCR 420 output. While parsing the EDID 1578 * blocks it's very helpful to know if the source is capable of 1579 * handling YCBCR 420 outputs. 1580 */ 1581 bool ycbcr_420_allowed; 1582 1583 /** 1584 * @registration_state: Is this connector initializing, exposed 1585 * (registered) with userspace, or unregistered? 1586 * 1587 * Protected by @mutex. 1588 */ 1589 enum drm_connector_registration_state registration_state; 1590 1591 /** 1592 * @modes: 1593 * Modes available on this connector (from fill_modes() + user). 1594 * Protected by &drm_mode_config.mutex. 1595 */ 1596 struct list_head modes; 1597 1598 /** 1599 * @status: 1600 * One of the drm_connector_status enums (connected, not, or unknown). 1601 * Protected by &drm_mode_config.mutex. 1602 */ 1603 enum drm_connector_status status; 1604 1605 /** 1606 * @probed_modes: 1607 * These are modes added by probing with DDC or the BIOS, before 1608 * filtering is applied. Used by the probe helpers. Protected by 1609 * &drm_mode_config.mutex. 1610 */ 1611 struct list_head probed_modes; 1612 1613 /** 1614 * @display_info: Display information is filled from EDID information 1615 * when a display is detected. For non hot-pluggable displays such as 1616 * flat panels in embedded systems, the driver should initialize the 1617 * &drm_display_info.width_mm and &drm_display_info.height_mm fields 1618 * with the physical size of the display. 1619 * 1620 * Protected by &drm_mode_config.mutex. 1621 */ 1622 struct drm_display_info display_info; 1623 1624 /** @funcs: connector control functions */ 1625 const struct drm_connector_funcs *funcs; 1626 1627 /** 1628 * @edid_blob_ptr: DRM property containing EDID if present. Protected by 1629 * &drm_mode_config.mutex. This should be updated only by calling 1630 * drm_connector_update_edid_property(). 1631 */ 1632 struct drm_property_blob *edid_blob_ptr; 1633 1634 /** @properties: property tracking for this connector */ 1635 struct drm_object_properties properties; 1636 1637 /** 1638 * @scaling_mode_property: Optional atomic property to control the 1639 * upscaling. See drm_connector_attach_content_protection_property(). 1640 */ 1641 struct drm_property *scaling_mode_property; 1642 1643 /** 1644 * @vrr_capable_property: Optional property to help userspace 1645 * query hardware support for variable refresh rate on a connector. 1646 * connector. Drivers can add the property to a connector by 1647 * calling drm_connector_attach_vrr_capable_property(). 1648 * 1649 * This should be updated only by calling 1650 * drm_connector_set_vrr_capable_property(). 1651 */ 1652 struct drm_property *vrr_capable_property; 1653 1654 /** 1655 * @colorspace_property: Connector property to set the suitable 1656 * colorspace supported by the sink. 1657 */ 1658 struct drm_property *colorspace_property; 1659 1660 /** 1661 * @path_blob_ptr: 1662 * 1663 * DRM blob property data for the DP MST path property. This should only 1664 * be updated by calling drm_connector_set_path_property(). 1665 */ 1666 struct drm_property_blob *path_blob_ptr; 1667 1668 /** 1669 * @max_bpc_property: Default connector property for the max bpc to be 1670 * driven out of the connector. 1671 */ 1672 struct drm_property *max_bpc_property; 1673 1674 /** @privacy_screen: drm_privacy_screen for this connector, or NULL. */ 1675 struct drm_privacy_screen *privacy_screen; 1676 1677 /** @privacy_screen_notifier: privacy-screen notifier_block */ 1678 struct notifier_block privacy_screen_notifier; 1679 1680 /** 1681 * @privacy_screen_sw_state_property: Optional atomic property for the 1682 * connector to control the integrated privacy screen. 1683 */ 1684 struct drm_property *privacy_screen_sw_state_property; 1685 1686 /** 1687 * @privacy_screen_hw_state_property: Optional atomic property for the 1688 * connector to report the actual integrated privacy screen state. 1689 */ 1690 struct drm_property *privacy_screen_hw_state_property; 1691 1692#define DRM_CONNECTOR_POLL_HPD (1 << 0) 1693#define DRM_CONNECTOR_POLL_CONNECT (1 << 1) 1694#define DRM_CONNECTOR_POLL_DISCONNECT (1 << 2) 1695 1696 /** 1697 * @polled: 1698 * 1699 * Connector polling mode, a combination of 1700 * 1701 * DRM_CONNECTOR_POLL_HPD 1702 * The connector generates hotplug events and doesn't need to be 1703 * periodically polled. The CONNECT and DISCONNECT flags must not 1704 * be set together with the HPD flag. 1705 * 1706 * DRM_CONNECTOR_POLL_CONNECT 1707 * Periodically poll the connector for connection. 1708 * 1709 * DRM_CONNECTOR_POLL_DISCONNECT 1710 * Periodically poll the connector for disconnection, without 1711 * causing flickering even when the connector is in use. DACs should 1712 * rarely do this without a lot of testing. 1713 * 1714 * Set to 0 for connectors that don't support connection status 1715 * discovery. 1716 */ 1717 uint8_t polled; 1718 1719 /** 1720 * @dpms: Current dpms state. For legacy drivers the 1721 * &drm_connector_funcs.dpms callback must update this. For atomic 1722 * drivers, this is handled by the core atomic code, and drivers must 1723 * only take &drm_crtc_state.active into account. 1724 */ 1725 int dpms; 1726 1727 /** @helper_private: mid-layer private data */ 1728 const struct drm_connector_helper_funcs *helper_private; 1729 1730 /** @cmdline_mode: mode line parsed from the kernel cmdline for this connector */ 1731 struct drm_cmdline_mode cmdline_mode; 1732 /** @force: a DRM_FORCE_<foo> state for forced mode sets */ 1733 enum drm_connector_force force; 1734 1735 /** 1736 * @edid_override: Override EDID set via debugfs. 1737 * 1738 * Do not modify or access outside of the drm_edid_override_* family of 1739 * functions. 1740 */ 1741 const struct drm_edid *edid_override; 1742 1743 /** 1744 * @edid_override_mutex: Protect access to edid_override. 1745 */ 1746 struct mutex edid_override_mutex; 1747 1748 /** @epoch_counter: used to detect any other changes in connector, besides status */ 1749 u64 epoch_counter; 1750 1751 /** 1752 * @possible_encoders: Bit mask of encoders that can drive this 1753 * connector, drm_encoder_index() determines the index into the bitfield 1754 * and the bits are set with drm_connector_attach_encoder(). 1755 */ 1756 u32 possible_encoders; 1757 1758 /** 1759 * @encoder: Currently bound encoder driving this connector, if any. 1760 * Only really meaningful for non-atomic drivers. Atomic drivers should 1761 * instead look at &drm_connector_state.best_encoder, and in case they 1762 * need the CRTC driving this output, &drm_connector_state.crtc. 1763 */ 1764 struct drm_encoder *encoder; 1765 1766#define MAX_ELD_BYTES 128 1767 /** @eld: EDID-like data, if present */ 1768 uint8_t eld[MAX_ELD_BYTES]; 1769 /** @latency_present: AV delay info from ELD, if found */ 1770 bool latency_present[2]; 1771 /** 1772 * @video_latency: Video latency info from ELD, if found. 1773 * [0]: progressive, [1]: interlaced 1774 */ 1775 int video_latency[2]; 1776 /** 1777 * @audio_latency: audio latency info from ELD, if found 1778 * [0]: progressive, [1]: interlaced 1779 */ 1780 int audio_latency[2]; 1781 1782 /** 1783 * @ddc: associated ddc adapter. 1784 * A connector usually has its associated ddc adapter. If a driver uses 1785 * this field, then an appropriate symbolic link is created in connector 1786 * sysfs directory to make it easy for the user to tell which i2c 1787 * adapter is for a particular display. 1788 * 1789 * The field should be set by calling drm_connector_init_with_ddc(). 1790 */ 1791 struct i2c_adapter *ddc; 1792 1793 /** 1794 * @null_edid_counter: track sinks that give us all zeros for the EDID. 1795 * Needed to workaround some HW bugs where we get all 0s 1796 */ 1797 int null_edid_counter; 1798 1799 /** @bad_edid_counter: track sinks that give us an EDID with invalid checksum */ 1800 unsigned bad_edid_counter; 1801 1802 /** 1803 * @edid_corrupt: Indicates whether the last read EDID was corrupt. Used 1804 * in Displayport compliance testing - Displayport Link CTS Core 1.2 1805 * rev1.1 4.2.2.6 1806 */ 1807 bool edid_corrupt; 1808 /** 1809 * @real_edid_checksum: real edid checksum for corrupted edid block. 1810 * Required in Displayport 1.4 compliance testing 1811 * rev1.1 4.2.2.6 1812 */ 1813 u8 real_edid_checksum; 1814 1815 /** @debugfs_entry: debugfs directory for this connector */ 1816 struct dentry *debugfs_entry; 1817 1818 /** 1819 * @state: 1820 * 1821 * Current atomic state for this connector. 1822 * 1823 * This is protected by &drm_mode_config.connection_mutex. Note that 1824 * nonblocking atomic commits access the current connector state without 1825 * taking locks. Either by going through the &struct drm_atomic_state 1826 * pointers, see for_each_oldnew_connector_in_state(), 1827 * for_each_old_connector_in_state() and 1828 * for_each_new_connector_in_state(). Or through careful ordering of 1829 * atomic commit operations as implemented in the atomic helpers, see 1830 * &struct drm_crtc_commit. 1831 */ 1832 struct drm_connector_state *state; 1833 1834 /* DisplayID bits. FIXME: Extract into a substruct? */ 1835 1836 /** 1837 * @tile_blob_ptr: 1838 * 1839 * DRM blob property data for the tile property (used mostly by DP MST). 1840 * This is meant for screens which are driven through separate display 1841 * pipelines represented by &drm_crtc, which might not be running with 1842 * genlocked clocks. For tiled panels which are genlocked, like 1843 * dual-link LVDS or dual-link DSI, the driver should try to not expose 1844 * the tiling and virtualize both &drm_crtc and &drm_plane if needed. 1845 * 1846 * This should only be updated by calling 1847 * drm_connector_set_tile_property(). 1848 */ 1849 struct drm_property_blob *tile_blob_ptr; 1850 1851 /** @has_tile: is this connector connected to a tiled monitor */ 1852 bool has_tile; 1853 /** @tile_group: tile group for the connected monitor */ 1854 struct drm_tile_group *tile_group; 1855 /** @tile_is_single_monitor: whether the tile is one monitor housing */ 1856 bool tile_is_single_monitor; 1857 1858 /** @num_h_tile: number of horizontal tiles in the tile group */ 1859 /** @num_v_tile: number of vertical tiles in the tile group */ 1860 uint8_t num_h_tile, num_v_tile; 1861 /** @tile_h_loc: horizontal location of this tile */ 1862 /** @tile_v_loc: vertical location of this tile */ 1863 uint8_t tile_h_loc, tile_v_loc; 1864 /** @tile_h_size: horizontal size of this tile. */ 1865 /** @tile_v_size: vertical size of this tile. */ 1866 uint16_t tile_h_size, tile_v_size; 1867 1868 /** 1869 * @free_node: 1870 * 1871 * List used only by &drm_connector_list_iter to be able to clean up a 1872 * connector from any context, in conjunction with 1873 * &drm_mode_config.connector_free_work. 1874 */ 1875 struct llist_node free_node; 1876 1877 /** @hdr_sink_metadata: HDR Metadata Information read from sink */ 1878 struct hdr_sink_metadata hdr_sink_metadata; 1879}; 1880 1881#define obj_to_connector(x) container_of(x, struct drm_connector, base) 1882 1883int drm_connector_init(struct drm_device *dev, 1884 struct drm_connector *connector, 1885 const struct drm_connector_funcs *funcs, 1886 int connector_type); 1887int drm_connector_init_with_ddc(struct drm_device *dev, 1888 struct drm_connector *connector, 1889 const struct drm_connector_funcs *funcs, 1890 int connector_type, 1891 struct i2c_adapter *ddc); 1892int drmm_connector_init(struct drm_device *dev, 1893 struct drm_connector *connector, 1894 const struct drm_connector_funcs *funcs, 1895 int connector_type, 1896 struct i2c_adapter *ddc); 1897void drm_connector_attach_edid_property(struct drm_connector *connector); 1898int drm_connector_register(struct drm_connector *connector); 1899void drm_connector_unregister(struct drm_connector *connector); 1900int drm_connector_attach_encoder(struct drm_connector *connector, 1901 struct drm_encoder *encoder); 1902 1903void drm_connector_cleanup(struct drm_connector *connector); 1904 1905static inline unsigned int drm_connector_index(const struct drm_connector *connector) 1906{ 1907 return connector->index; 1908} 1909 1910static inline u32 drm_connector_mask(const struct drm_connector *connector) 1911{ 1912 return 1 << connector->index; 1913} 1914 1915/** 1916 * drm_connector_lookup - lookup connector object 1917 * @dev: DRM device 1918 * @file_priv: drm file to check for lease against. 1919 * @id: connector object id 1920 * 1921 * This function looks up the connector object specified by id 1922 * add takes a reference to it. 1923 */ 1924static inline struct drm_connector *drm_connector_lookup(struct drm_device *dev, 1925 struct drm_file *file_priv, 1926 uint32_t id) 1927{ 1928 struct drm_mode_object *mo; 1929 mo = drm_mode_object_find(dev, file_priv, id, DRM_MODE_OBJECT_CONNECTOR); 1930 return mo ? obj_to_connector(mo) : NULL; 1931} 1932 1933/** 1934 * drm_connector_get - acquire a connector reference 1935 * @connector: DRM connector 1936 * 1937 * This function increments the connector's refcount. 1938 */ 1939static inline void drm_connector_get(struct drm_connector *connector) 1940{ 1941 drm_mode_object_get(&connector->base); 1942} 1943 1944/** 1945 * drm_connector_put - release a connector reference 1946 * @connector: DRM connector 1947 * 1948 * This function decrements the connector's reference count and frees the 1949 * object if the reference count drops to zero. 1950 */ 1951static inline void drm_connector_put(struct drm_connector *connector) 1952{ 1953 drm_mode_object_put(&connector->base); 1954} 1955 1956/** 1957 * drm_connector_is_unregistered - has the connector been unregistered from 1958 * userspace? 1959 * @connector: DRM connector 1960 * 1961 * Checks whether or not @connector has been unregistered from userspace. 1962 * 1963 * Returns: 1964 * True if the connector was unregistered, false if the connector is 1965 * registered or has not yet been registered with userspace. 1966 */ 1967static inline bool 1968drm_connector_is_unregistered(struct drm_connector *connector) 1969{ 1970 return READ_ONCE(connector->registration_state) == 1971 DRM_CONNECTOR_UNREGISTERED; 1972} 1973 1974void drm_connector_oob_hotplug_event(struct fwnode_handle *connector_fwnode); 1975const char *drm_get_connector_type_name(unsigned int connector_type); 1976const char *drm_get_connector_status_name(enum drm_connector_status status); 1977const char *drm_get_subpixel_order_name(enum subpixel_order order); 1978const char *drm_get_dpms_name(int val); 1979const char *drm_get_dvi_i_subconnector_name(int val); 1980const char *drm_get_dvi_i_select_name(int val); 1981const char *drm_get_tv_mode_name(int val); 1982const char *drm_get_tv_subconnector_name(int val); 1983const char *drm_get_tv_select_name(int val); 1984const char *drm_get_dp_subconnector_name(int val); 1985const char *drm_get_content_protection_name(int val); 1986const char *drm_get_hdcp_content_type_name(int val); 1987 1988int drm_get_tv_mode_from_name(const char *name, size_t len); 1989 1990int drm_mode_create_dvi_i_properties(struct drm_device *dev); 1991void drm_connector_attach_dp_subconnector_property(struct drm_connector *connector); 1992 1993int drm_mode_create_tv_margin_properties(struct drm_device *dev); 1994int drm_mode_create_tv_properties_legacy(struct drm_device *dev, 1995 unsigned int num_modes, 1996 const char * const modes[]); 1997int drm_mode_create_tv_properties(struct drm_device *dev, 1998 unsigned int supported_tv_modes); 1999void drm_connector_attach_tv_margin_properties(struct drm_connector *conn); 2000int drm_mode_create_scaling_mode_property(struct drm_device *dev); 2001int drm_connector_attach_content_type_property(struct drm_connector *dev); 2002int drm_connector_attach_scaling_mode_property(struct drm_connector *connector, 2003 u32 scaling_mode_mask); 2004int drm_connector_attach_vrr_capable_property( 2005 struct drm_connector *connector); 2006int drm_connector_attach_colorspace_property(struct drm_connector *connector); 2007int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *connector); 2008bool drm_connector_atomic_hdr_metadata_equal(struct drm_connector_state *old_state, 2009 struct drm_connector_state *new_state); 2010int drm_mode_create_aspect_ratio_property(struct drm_device *dev); 2011int drm_mode_create_hdmi_colorspace_property(struct drm_connector *connector, 2012 u32 supported_colorspaces); 2013int drm_mode_create_dp_colorspace_property(struct drm_connector *connector, 2014 u32 supported_colorspaces); 2015int drm_mode_create_content_type_property(struct drm_device *dev); 2016int drm_mode_create_suggested_offset_properties(struct drm_device *dev); 2017 2018int drm_connector_set_path_property(struct drm_connector *connector, 2019 const char *path); 2020int drm_connector_set_tile_property(struct drm_connector *connector); 2021int drm_connector_update_edid_property(struct drm_connector *connector, 2022 const struct edid *edid); 2023void drm_connector_set_link_status_property(struct drm_connector *connector, 2024 uint64_t link_status); 2025void drm_connector_set_vrr_capable_property( 2026 struct drm_connector *connector, bool capable); 2027int drm_connector_set_panel_orientation( 2028 struct drm_connector *connector, 2029 enum drm_panel_orientation panel_orientation); 2030int drm_connector_set_panel_orientation_with_quirk( 2031 struct drm_connector *connector, 2032 enum drm_panel_orientation panel_orientation, 2033 int width, int height); 2034int drm_connector_set_orientation_from_panel( 2035 struct drm_connector *connector, 2036 struct drm_panel *panel); 2037int drm_connector_attach_max_bpc_property(struct drm_connector *connector, 2038 int min, int max); 2039void drm_connector_create_privacy_screen_properties(struct drm_connector *conn); 2040void drm_connector_attach_privacy_screen_properties(struct drm_connector *conn); 2041void drm_connector_attach_privacy_screen_provider( 2042 struct drm_connector *connector, struct drm_privacy_screen *priv); 2043void drm_connector_update_privacy_screen(const struct drm_connector_state *connector_state); 2044 2045/** 2046 * struct drm_tile_group - Tile group metadata 2047 * @refcount: reference count 2048 * @dev: DRM device 2049 * @id: tile group id exposed to userspace 2050 * @group_data: Sink-private data identifying this group 2051 * 2052 * @group_data corresponds to displayid vend/prod/serial for external screens 2053 * with an EDID. 2054 */ 2055struct drm_tile_group { 2056 struct kref refcount; 2057 struct drm_device *dev; 2058 int id; 2059 u8 group_data[8]; 2060}; 2061 2062struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev, 2063 const char topology[8]); 2064struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev, 2065 const char topology[8]); 2066void drm_mode_put_tile_group(struct drm_device *dev, 2067 struct drm_tile_group *tg); 2068 2069/** 2070 * struct drm_connector_list_iter - connector_list iterator 2071 * 2072 * This iterator tracks state needed to be able to walk the connector_list 2073 * within struct drm_mode_config. Only use together with 2074 * drm_connector_list_iter_begin(), drm_connector_list_iter_end() and 2075 * drm_connector_list_iter_next() respectively the convenience macro 2076 * drm_for_each_connector_iter(). 2077 * 2078 * Note that the return value of drm_connector_list_iter_next() is only valid 2079 * up to the next drm_connector_list_iter_next() or 2080 * drm_connector_list_iter_end() call. If you want to use the connector later, 2081 * then you need to grab your own reference first using drm_connector_get(). 2082 */ 2083struct drm_connector_list_iter { 2084/* private: */ 2085 struct drm_device *dev; 2086 struct drm_connector *conn; 2087}; 2088 2089void drm_connector_list_iter_begin(struct drm_device *dev, 2090 struct drm_connector_list_iter *iter); 2091struct drm_connector * 2092drm_connector_list_iter_next(struct drm_connector_list_iter *iter); 2093void drm_connector_list_iter_end(struct drm_connector_list_iter *iter); 2094 2095bool drm_connector_has_possible_encoder(struct drm_connector *connector, 2096 struct drm_encoder *encoder); 2097const char *drm_get_colorspace_name(enum drm_colorspace colorspace); 2098 2099/** 2100 * drm_for_each_connector_iter - connector_list iterator macro 2101 * @connector: &struct drm_connector pointer used as cursor 2102 * @iter: &struct drm_connector_list_iter 2103 * 2104 * Note that @connector is only valid within the list body, if you want to use 2105 * @connector after calling drm_connector_list_iter_end() then you need to grab 2106 * your own reference first using drm_connector_get(). 2107 */ 2108#define drm_for_each_connector_iter(connector, iter) \ 2109 while ((connector = drm_connector_list_iter_next(iter))) 2110 2111/** 2112 * drm_connector_for_each_possible_encoder - iterate connector's possible encoders 2113 * @connector: &struct drm_connector pointer 2114 * @encoder: &struct drm_encoder pointer used as cursor 2115 */ 2116#define drm_connector_for_each_possible_encoder(connector, encoder) \ 2117 drm_for_each_encoder_mask(encoder, (connector)->dev, \ 2118 (connector)->possible_encoders) 2119 2120#endif 2121