1 /* 2 * Copyright © 2006 Keith Packard 3 * Copyright © 2007-2008 Dave Airlie 4 * Copyright © 2007-2008 Intel Corporation 5 * Jesse Barnes <jesse.barnes@intel.com> 6 * Copyright © 2014 Intel Corporation 7 * Daniel Vetter <daniel.vetter@ffwll.ch> 8 * 9 * Permission is hereby granted, free of charge, to any person obtaining a 10 * copy of this software and associated documentation files (the "Software"), 11 * to deal in the Software without restriction, including without limitation 12 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 13 * and/or sell copies of the Software, and to permit persons to whom the 14 * Software is furnished to do so, subject to the following conditions: 15 * 16 * The above copyright notice and this permission notice shall be included in 17 * all copies or substantial portions of the Software. 18 * 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 22 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 23 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 24 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 25 * OTHER DEALINGS IN THE SOFTWARE. 26 */ 27 #ifndef __DRM_MODES_H__ 28 #define __DRM_MODES_H__ 29 30 #include <linux/hdmi.h> 31 32 #include <drm/drm_mode_object.h> 33 #include <drm/drm_connector.h> 34 35 struct videomode; 36 37 /* 38 * Note on terminology: here, for brevity and convenience, we refer to connector 39 * control chips as 'CRTCs'. They can control any type of connector, VGA, LVDS, 40 * DVI, etc. And 'screen' refers to the whole of the visible display, which 41 * may span multiple monitors (and therefore multiple CRTC and connector 42 * structures). 43 */ 44 45 /** 46 * enum drm_mode_status - hardware support status of a mode 47 * @MODE_OK: Mode OK 48 * @MODE_HSYNC: hsync out of range 49 * @MODE_VSYNC: vsync out of range 50 * @MODE_H_ILLEGAL: mode has illegal horizontal timings 51 * @MODE_V_ILLEGAL: mode has illegal vertical timings 52 * @MODE_BAD_WIDTH: requires an unsupported linepitch 53 * @MODE_NOMODE: no mode with a matching name 54 * @MODE_NO_INTERLACE: interlaced mode not supported 55 * @MODE_NO_DBLESCAN: doublescan mode not supported 56 * @MODE_NO_VSCAN: multiscan mode not supported 57 * @MODE_MEM: insufficient video memory 58 * @MODE_VIRTUAL_X: mode width too large for specified virtual size 59 * @MODE_VIRTUAL_Y: mode height too large for specified virtual size 60 * @MODE_MEM_VIRT: insufficient video memory given virtual size 61 * @MODE_NOCLOCK: no fixed clock available 62 * @MODE_CLOCK_HIGH: clock required is too high 63 * @MODE_CLOCK_LOW: clock required is too low 64 * @MODE_CLOCK_RANGE: clock/mode isn't in a ClockRange 65 * @MODE_BAD_HVALUE: horizontal timing was out of range 66 * @MODE_BAD_VVALUE: vertical timing was out of range 67 * @MODE_BAD_VSCAN: VScan value out of range 68 * @MODE_HSYNC_NARROW: horizontal sync too narrow 69 * @MODE_HSYNC_WIDE: horizontal sync too wide 70 * @MODE_HBLANK_NARROW: horizontal blanking too narrow 71 * @MODE_HBLANK_WIDE: horizontal blanking too wide 72 * @MODE_VSYNC_NARROW: vertical sync too narrow 73 * @MODE_VSYNC_WIDE: vertical sync too wide 74 * @MODE_VBLANK_NARROW: vertical blanking too narrow 75 * @MODE_VBLANK_WIDE: vertical blanking too wide 76 * @MODE_PANEL: exceeds panel dimensions 77 * @MODE_INTERLACE_WIDTH: width too large for interlaced mode 78 * @MODE_ONE_WIDTH: only one width is supported 79 * @MODE_ONE_HEIGHT: only one height is supported 80 * @MODE_ONE_SIZE: only one resolution is supported 81 * @MODE_NO_REDUCED: monitor doesn't accept reduced blanking 82 * @MODE_NO_STEREO: stereo modes not supported 83 * @MODE_NO_420: ycbcr 420 modes not supported 84 * @MODE_STALE: mode has become stale 85 * @MODE_BAD: unspecified reason 86 * @MODE_ERROR: error condition 87 * 88 * This enum is used to filter out modes not supported by the driver/hardware 89 * combination. 90 */ 91 enum drm_mode_status { 92 MODE_OK = 0, 93 MODE_HSYNC, 94 MODE_VSYNC, 95 MODE_H_ILLEGAL, 96 MODE_V_ILLEGAL, 97 MODE_BAD_WIDTH, 98 MODE_NOMODE, 99 MODE_NO_INTERLACE, 100 MODE_NO_DBLESCAN, 101 MODE_NO_VSCAN, 102 MODE_MEM, 103 MODE_VIRTUAL_X, 104 MODE_VIRTUAL_Y, 105 MODE_MEM_VIRT, 106 MODE_NOCLOCK, 107 MODE_CLOCK_HIGH, 108 MODE_CLOCK_LOW, 109 MODE_CLOCK_RANGE, 110 MODE_BAD_HVALUE, 111 MODE_BAD_VVALUE, 112 MODE_BAD_VSCAN, 113 MODE_HSYNC_NARROW, 114 MODE_HSYNC_WIDE, 115 MODE_HBLANK_NARROW, 116 MODE_HBLANK_WIDE, 117 MODE_VSYNC_NARROW, 118 MODE_VSYNC_WIDE, 119 MODE_VBLANK_NARROW, 120 MODE_VBLANK_WIDE, 121 MODE_PANEL, 122 MODE_INTERLACE_WIDTH, 123 MODE_ONE_WIDTH, 124 MODE_ONE_HEIGHT, 125 MODE_ONE_SIZE, 126 MODE_NO_REDUCED, 127 MODE_NO_STEREO, 128 MODE_NO_420, 129 MODE_STALE = -3, 130 MODE_BAD = -2, 131 MODE_ERROR = -1 132 }; 133 134 #define DRM_MODE(nm, t, c, hd, hss, hse, ht, hsk, vd, vss, vse, vt, vs, f) \ 135 .name = nm, .status = 0, .type = (t), .clock = (c), \ 136 .hdisplay = (hd), .hsync_start = (hss), .hsync_end = (hse), \ 137 .htotal = (ht), .hskew = (hsk), .vdisplay = (vd), \ 138 .vsync_start = (vss), .vsync_end = (vse), .vtotal = (vt), \ 139 .vscan = (vs), .flags = (f) 140 141 /** 142 * DRM_MODE_RES_MM - Calculates the display size from resolution and DPI 143 * @res: The resolution in pixel 144 * @dpi: The number of dots per inch 145 */ 146 #define DRM_MODE_RES_MM(res, dpi) \ 147 (((res) * 254ul) / ((dpi) * 10ul)) 148 149 #define __DRM_MODE_INIT(pix, hd, vd, hd_mm, vd_mm) \ 150 .type = DRM_MODE_TYPE_DRIVER, .clock = (pix), \ 151 .hdisplay = (hd), .hsync_start = (hd), .hsync_end = (hd), \ 152 .htotal = (hd), .vdisplay = (vd), .vsync_start = (vd), \ 153 .vsync_end = (vd), .vtotal = (vd), .width_mm = (hd_mm), \ 154 .height_mm = (vd_mm) 155 156 /** 157 * DRM_MODE_INIT - Initialize display mode 158 * @hz: Vertical refresh rate in Hertz 159 * @hd: Horizontal resolution, width 160 * @vd: Vertical resolution, height 161 * @hd_mm: Display width in millimeters 162 * @vd_mm: Display height in millimeters 163 * 164 * This macro initializes a &drm_display_mode that contains information about 165 * refresh rate, resolution and physical size. 166 */ 167 #define DRM_MODE_INIT(hz, hd, vd, hd_mm, vd_mm) \ 168 __DRM_MODE_INIT((hd) * (vd) * (hz) / 1000 /* kHz */, hd, vd, hd_mm, vd_mm) 169 170 /** 171 * DRM_SIMPLE_MODE - Simple display mode 172 * @hd: Horizontal resolution, width 173 * @vd: Vertical resolution, height 174 * @hd_mm: Display width in millimeters 175 * @vd_mm: Display height in millimeters 176 * 177 * This macro initializes a &drm_display_mode that only contains info about 178 * resolution and physical size. 179 */ 180 #define DRM_SIMPLE_MODE(hd, vd, hd_mm, vd_mm) \ 181 __DRM_MODE_INIT(1 /* pass validation */, hd, vd, hd_mm, vd_mm) 182 183 #define CRTC_INTERLACE_HALVE_V (1 << 0) /* halve V values for interlacing */ 184 #define CRTC_STEREO_DOUBLE (1 << 1) /* adjust timings for stereo modes */ 185 #define CRTC_NO_DBLSCAN (1 << 2) /* don't adjust doublescan */ 186 #define CRTC_NO_VSCAN (1 << 3) /* don't adjust doublescan */ 187 #define CRTC_STEREO_DOUBLE_ONLY (CRTC_STEREO_DOUBLE | CRTC_NO_DBLSCAN | CRTC_NO_VSCAN) 188 189 #define DRM_MODE_FLAG_3D_MAX DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF 190 191 #define DRM_MODE_MATCH_TIMINGS (1 << 0) 192 #define DRM_MODE_MATCH_CLOCK (1 << 1) 193 #define DRM_MODE_MATCH_FLAGS (1 << 2) 194 #define DRM_MODE_MATCH_3D_FLAGS (1 << 3) 195 #define DRM_MODE_MATCH_ASPECT_RATIO (1 << 4) 196 197 /** 198 * struct drm_display_mode - DRM kernel-internal display mode structure 199 * @hdisplay: horizontal display size 200 * @hsync_start: horizontal sync start 201 * @hsync_end: horizontal sync end 202 * @htotal: horizontal total size 203 * @hskew: horizontal skew?! 204 * @vdisplay: vertical display size 205 * @vsync_start: vertical sync start 206 * @vsync_end: vertical sync end 207 * @vtotal: vertical total size 208 * @vscan: vertical scan?! 209 * @crtc_hdisplay: hardware mode horizontal display size 210 * @crtc_hblank_start: hardware mode horizontal blank start 211 * @crtc_hblank_end: hardware mode horizontal blank end 212 * @crtc_hsync_start: hardware mode horizontal sync start 213 * @crtc_hsync_end: hardware mode horizontal sync end 214 * @crtc_htotal: hardware mode horizontal total size 215 * @crtc_hskew: hardware mode horizontal skew?! 216 * @crtc_vdisplay: hardware mode vertical display size 217 * @crtc_vblank_start: hardware mode vertical blank start 218 * @crtc_vblank_end: hardware mode vertical blank end 219 * @crtc_vsync_start: hardware mode vertical sync start 220 * @crtc_vsync_end: hardware mode vertical sync end 221 * @crtc_vtotal: hardware mode vertical total size 222 * 223 * This is the kernel API display mode information structure. For the 224 * user-space version see struct drm_mode_modeinfo. 225 * 226 * The horizontal and vertical timings are defined per the following diagram. 227 * 228 * :: 229 * 230 * 231 * Active Front Sync Back 232 * Region Porch Porch 233 * <-----------------------><----------------><-------------><--------------> 234 * //////////////////////| 235 * ////////////////////// | 236 * ////////////////////// |.................. ................ 237 * _______________ 238 * <----- [hv]display -----> 239 * <------------- [hv]sync_start ------------> 240 * <--------------------- [hv]sync_end ---------------------> 241 * <-------------------------------- [hv]total ----------------------------->* 242 * 243 * This structure contains two copies of timings. First are the plain timings, 244 * which specify the logical mode, as it would be for a progressive 1:1 scanout 245 * at the refresh rate userspace can observe through vblank timestamps. Then 246 * there's the hardware timings, which are corrected for interlacing, 247 * double-clocking and similar things. They are provided as a convenience, and 248 * can be appropriately computed using drm_mode_set_crtcinfo(). 249 * 250 * For printing you can use %DRM_MODE_FMT and DRM_MODE_ARG(). 251 */ 252 struct drm_display_mode { 253 /** 254 * @clock: 255 * 256 * Pixel clock in kHz. 257 */ 258 int clock; /* in kHz */ 259 u16 hdisplay; 260 u16 hsync_start; 261 u16 hsync_end; 262 u16 htotal; 263 u16 hskew; 264 u16 vdisplay; 265 u16 vsync_start; 266 u16 vsync_end; 267 u16 vtotal; 268 u16 vscan; 269 /** 270 * @flags: 271 * 272 * Sync and timing flags: 273 * 274 * - DRM_MODE_FLAG_PHSYNC: horizontal sync is active high. 275 * - DRM_MODE_FLAG_NHSYNC: horizontal sync is active low. 276 * - DRM_MODE_FLAG_PVSYNC: vertical sync is active high. 277 * - DRM_MODE_FLAG_NVSYNC: vertical sync is active low. 278 * - DRM_MODE_FLAG_INTERLACE: mode is interlaced. 279 * - DRM_MODE_FLAG_DBLSCAN: mode uses doublescan. 280 * - DRM_MODE_FLAG_CSYNC: mode uses composite sync. 281 * - DRM_MODE_FLAG_PCSYNC: composite sync is active high. 282 * - DRM_MODE_FLAG_NCSYNC: composite sync is active low. 283 * - DRM_MODE_FLAG_HSKEW: hskew provided (not used?). 284 * - DRM_MODE_FLAG_BCAST: <deprecated> 285 * - DRM_MODE_FLAG_PIXMUX: <deprecated> 286 * - DRM_MODE_FLAG_DBLCLK: double-clocked mode. 287 * - DRM_MODE_FLAG_CLKDIV2: half-clocked mode. 288 * 289 * Additionally there's flags to specify how 3D modes are packed: 290 * 291 * - DRM_MODE_FLAG_3D_NONE: normal, non-3D mode. 292 * - DRM_MODE_FLAG_3D_FRAME_PACKING: 2 full frames for left and right. 293 * - DRM_MODE_FLAG_3D_FIELD_ALTERNATIVE: interleaved like fields. 294 * - DRM_MODE_FLAG_3D_LINE_ALTERNATIVE: interleaved lines. 295 * - DRM_MODE_FLAG_3D_SIDE_BY_SIDE_FULL: side-by-side full frames. 296 * - DRM_MODE_FLAG_3D_L_DEPTH: ? 297 * - DRM_MODE_FLAG_3D_L_DEPTH_GFX_GFX_DEPTH: ? 298 * - DRM_MODE_FLAG_3D_TOP_AND_BOTTOM: frame split into top and bottom 299 * parts. 300 * - DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF: frame split into left and 301 * right parts. 302 */ 303 u32 flags; 304 305 /** 306 * @crtc_clock: 307 * 308 * Actual pixel or dot clock in the hardware. This differs from the 309 * logical @clock when e.g. using interlacing, double-clocking, stereo 310 * modes or other fancy stuff that changes the timings and signals 311 * actually sent over the wire. 312 * 313 * This is again in kHz. 314 * 315 * Note that with digital outputs like HDMI or DP there's usually a 316 * massive confusion between the dot clock and the signal clock at the 317 * bit encoding level. Especially when a 8b/10b encoding is used and the 318 * difference is exactly a factor of 10. 319 */ 320 int crtc_clock; 321 u16 crtc_hdisplay; 322 u16 crtc_hblank_start; 323 u16 crtc_hblank_end; 324 u16 crtc_hsync_start; 325 u16 crtc_hsync_end; 326 u16 crtc_htotal; 327 u16 crtc_hskew; 328 u16 crtc_vdisplay; 329 u16 crtc_vblank_start; 330 u16 crtc_vblank_end; 331 u16 crtc_vsync_start; 332 u16 crtc_vsync_end; 333 u16 crtc_vtotal; 334 335 /** 336 * @width_mm: 337 * 338 * Addressable size of the output in mm, projectors should set this to 339 * 0. 340 */ 341 u16 width_mm; 342 343 /** 344 * @height_mm: 345 * 346 * Addressable size of the output in mm, projectors should set this to 347 * 0. 348 */ 349 u16 height_mm; 350 351 /** 352 * @type: 353 * 354 * A bitmask of flags, mostly about the source of a mode. Possible flags 355 * are: 356 * 357 * - DRM_MODE_TYPE_PREFERRED: Preferred mode, usually the native 358 * resolution of an LCD panel. There should only be one preferred 359 * mode per connector at any given time. 360 * - DRM_MODE_TYPE_DRIVER: Mode created by the driver, which is all of 361 * them really. Drivers must set this bit for all modes they create 362 * and expose to userspace. 363 * - DRM_MODE_TYPE_USERDEF: Mode defined or selected via the kernel 364 * command line. 365 * 366 * Plus a big list of flags which shouldn't be used at all, but are 367 * still around since these flags are also used in the userspace ABI. 368 * We no longer accept modes with these types though: 369 * 370 * - DRM_MODE_TYPE_BUILTIN: Meant for hard-coded modes, unused. 371 * Use DRM_MODE_TYPE_DRIVER instead. 372 * - DRM_MODE_TYPE_DEFAULT: Again a leftover, use 373 * DRM_MODE_TYPE_PREFERRED instead. 374 * - DRM_MODE_TYPE_CLOCK_C and DRM_MODE_TYPE_CRTC_C: Define leftovers 375 * which are stuck around for hysterical raisins only. No one has an 376 * idea what they were meant for. Don't use. 377 */ 378 u8 type; 379 380 /** 381 * @expose_to_userspace: 382 * 383 * Indicates whether the mode is to be exposed to the userspace. 384 * This is to maintain a set of exposed modes while preparing 385 * user-mode's list in drm_mode_getconnector ioctl. The purpose of 386 * this only lies in the ioctl function, and is not to be used 387 * outside the function. 388 */ 389 bool expose_to_userspace; 390 391 /** 392 * @head: 393 * 394 * struct list_head for mode lists. 395 */ 396 struct list_head head; 397 398 /** 399 * @name: 400 * 401 * Human-readable name of the mode, filled out with drm_mode_set_name(). 402 */ 403 char name[DRM_DISPLAY_MODE_LEN]; 404 405 /** 406 * @status: 407 * 408 * Status of the mode, used to filter out modes not supported by the 409 * hardware. See enum &drm_mode_status. 410 */ 411 enum drm_mode_status status; 412 413 /** 414 * @picture_aspect_ratio: 415 * 416 * Field for setting the HDMI picture aspect ratio of a mode. 417 */ 418 enum hdmi_picture_aspect picture_aspect_ratio; 419 420 }; 421 422 /** 423 * DRM_MODE_FMT - printf string for &struct drm_display_mode 424 */ 425 #define DRM_MODE_FMT "\"%s\": %d %d %d %d %d %d %d %d %d %d 0x%x 0x%x" 426 427 /** 428 * DRM_MODE_ARG - printf arguments for &struct drm_display_mode 429 * @m: display mode 430 */ 431 #define DRM_MODE_ARG(m) \ 432 (m)->name, drm_mode_vrefresh(m), (m)->clock, \ 433 (m)->hdisplay, (m)->hsync_start, (m)->hsync_end, (m)->htotal, \ 434 (m)->vdisplay, (m)->vsync_start, (m)->vsync_end, (m)->vtotal, \ 435 (m)->type, (m)->flags 436 437 #define obj_to_mode(x) container_of(x, struct drm_display_mode, base) 438 439 /** 440 * drm_mode_is_stereo - check for stereo mode flags 441 * @mode: drm_display_mode to check 442 * 443 * Returns: 444 * True if the mode is one of the stereo modes (like side-by-side), false if 445 * not. 446 */ 447 static inline bool drm_mode_is_stereo(const struct drm_display_mode *mode) 448 { 449 return mode->flags & DRM_MODE_FLAG_3D_MASK; 450 } 451 452 struct drm_connector; 453 struct drm_cmdline_mode; 454 455 struct drm_display_mode *drm_mode_create(struct drm_device *dev); 456 void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode); 457 void drm_mode_convert_to_umode(struct drm_mode_modeinfo *out, 458 const struct drm_display_mode *in); 459 int drm_mode_convert_umode(struct drm_device *dev, 460 struct drm_display_mode *out, 461 const struct drm_mode_modeinfo *in); 462 void drm_mode_probed_add(struct drm_connector *connector, struct drm_display_mode *mode); 463 void drm_mode_debug_printmodeline(const struct drm_display_mode *mode); 464 bool drm_mode_is_420_only(const struct drm_display_info *display, 465 const struct drm_display_mode *mode); 466 bool drm_mode_is_420_also(const struct drm_display_info *display, 467 const struct drm_display_mode *mode); 468 bool drm_mode_is_420(const struct drm_display_info *display, 469 const struct drm_display_mode *mode); 470 471 struct drm_display_mode *drm_cvt_mode(struct drm_device *dev, 472 int hdisplay, int vdisplay, int vrefresh, 473 bool reduced, bool interlaced, 474 bool margins); 475 struct drm_display_mode *drm_gtf_mode(struct drm_device *dev, 476 int hdisplay, int vdisplay, int vrefresh, 477 bool interlaced, int margins); 478 struct drm_display_mode *drm_gtf_mode_complex(struct drm_device *dev, 479 int hdisplay, int vdisplay, 480 int vrefresh, bool interlaced, 481 int margins, 482 int GTF_M, int GTF_2C, 483 int GTF_K, int GTF_2J); 484 void drm_display_mode_from_videomode(const struct videomode *vm, 485 struct drm_display_mode *dmode); 486 void drm_display_mode_to_videomode(const struct drm_display_mode *dmode, 487 struct videomode *vm); 488 void drm_bus_flags_from_videomode(const struct videomode *vm, u32 *bus_flags); 489 490 #if defined(CONFIG_OF) 491 int of_get_drm_display_mode(struct device_node *np, 492 struct drm_display_mode *dmode, u32 *bus_flags, 493 int index); 494 int of_get_drm_panel_display_mode(struct device_node *np, 495 struct drm_display_mode *dmode, u32 *bus_flags); 496 #else 497 static inline int of_get_drm_display_mode(struct device_node *np, 498 struct drm_display_mode *dmode, 499 u32 *bus_flags, int index) 500 { 501 return -EINVAL; 502 } 503 504 static inline int of_get_drm_panel_display_mode(struct device_node *np, 505 struct drm_display_mode *dmode, u32 *bus_flags) 506 { 507 return -EINVAL; 508 } 509 #endif 510 511 void drm_mode_set_name(struct drm_display_mode *mode); 512 int drm_mode_vrefresh(const struct drm_display_mode *mode); 513 void drm_mode_get_hv_timing(const struct drm_display_mode *mode, 514 int *hdisplay, int *vdisplay); 515 516 void drm_mode_set_crtcinfo(struct drm_display_mode *p, 517 int adjust_flags); 518 void drm_mode_copy(struct drm_display_mode *dst, 519 const struct drm_display_mode *src); 520 void drm_mode_init(struct drm_display_mode *dst, 521 const struct drm_display_mode *src); 522 struct drm_display_mode *drm_mode_duplicate(struct drm_device *dev, 523 const struct drm_display_mode *mode); 524 bool drm_mode_match(const struct drm_display_mode *mode1, 525 const struct drm_display_mode *mode2, 526 unsigned int match_flags); 527 bool drm_mode_equal(const struct drm_display_mode *mode1, 528 const struct drm_display_mode *mode2); 529 bool drm_mode_equal_no_clocks(const struct drm_display_mode *mode1, 530 const struct drm_display_mode *mode2); 531 bool drm_mode_equal_no_clocks_no_stereo(const struct drm_display_mode *mode1, 532 const struct drm_display_mode *mode2); 533 534 /* for use by the crtc helper probe functions */ 535 enum drm_mode_status drm_mode_validate_driver(struct drm_device *dev, 536 const struct drm_display_mode *mode); 537 enum drm_mode_status drm_mode_validate_size(const struct drm_display_mode *mode, 538 int maxX, int maxY); 539 enum drm_mode_status 540 drm_mode_validate_ycbcr420(const struct drm_display_mode *mode, 541 struct drm_connector *connector); 542 void drm_mode_prune_invalid(struct drm_device *dev, 543 struct list_head *mode_list, bool verbose); 544 void drm_mode_sort(struct list_head *mode_list); 545 void drm_connector_list_update(struct drm_connector *connector); 546 547 /* parsing cmdline modes */ 548 bool 549 drm_mode_parse_command_line_for_connector(const char *mode_option, 550 const struct drm_connector *connector, 551 struct drm_cmdline_mode *mode); 552 struct drm_display_mode * 553 drm_mode_create_from_cmdline_mode(struct drm_device *dev, 554 struct drm_cmdline_mode *cmd); 555 556 #endif /* __DRM_MODES_H__ */ 557