Line data Source code
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 0 : 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_analog_tv_mode(struct drm_device *dev,
472 : enum drm_connector_tv_mode mode,
473 : unsigned long pixel_clock_hz,
474 : unsigned int hdisplay,
475 : unsigned int vdisplay,
476 : bool interlace);
477 :
478 0 : static inline struct drm_display_mode *drm_mode_analog_ntsc_480i(struct drm_device *dev)
479 : {
480 0 : return drm_analog_tv_mode(dev, DRM_MODE_TV_MODE_NTSC, 13500000, 720, 480, true);
481 : }
482 :
483 0 : static inline struct drm_display_mode *drm_mode_analog_pal_576i(struct drm_device *dev)
484 : {
485 0 : return drm_analog_tv_mode(dev, DRM_MODE_TV_MODE_PAL, 13500000, 720, 576, true);
486 : }
487 :
488 : struct drm_display_mode *drm_cvt_mode(struct drm_device *dev,
489 : int hdisplay, int vdisplay, int vrefresh,
490 : bool reduced, bool interlaced,
491 : bool margins);
492 : struct drm_display_mode *drm_gtf_mode(struct drm_device *dev,
493 : int hdisplay, int vdisplay, int vrefresh,
494 : bool interlaced, int margins);
495 : struct drm_display_mode *drm_gtf_mode_complex(struct drm_device *dev,
496 : int hdisplay, int vdisplay,
497 : int vrefresh, bool interlaced,
498 : int margins,
499 : int GTF_M, int GTF_2C,
500 : int GTF_K, int GTF_2J);
501 : void drm_display_mode_from_videomode(const struct videomode *vm,
502 : struct drm_display_mode *dmode);
503 : void drm_display_mode_to_videomode(const struct drm_display_mode *dmode,
504 : struct videomode *vm);
505 : void drm_bus_flags_from_videomode(const struct videomode *vm, u32 *bus_flags);
506 :
507 : #if defined(CONFIG_OF)
508 : int of_get_drm_display_mode(struct device_node *np,
509 : struct drm_display_mode *dmode, u32 *bus_flags,
510 : int index);
511 : int of_get_drm_panel_display_mode(struct device_node *np,
512 : struct drm_display_mode *dmode, u32 *bus_flags);
513 : #else
514 : static inline int of_get_drm_display_mode(struct device_node *np,
515 : struct drm_display_mode *dmode,
516 : u32 *bus_flags, int index)
517 : {
518 : return -EINVAL;
519 : }
520 :
521 : static inline int of_get_drm_panel_display_mode(struct device_node *np,
522 : struct drm_display_mode *dmode, u32 *bus_flags)
523 : {
524 : return -EINVAL;
525 : }
526 : #endif
527 :
528 : void drm_mode_set_name(struct drm_display_mode *mode);
529 : int drm_mode_vrefresh(const struct drm_display_mode *mode);
530 : void drm_mode_get_hv_timing(const struct drm_display_mode *mode,
531 : int *hdisplay, int *vdisplay);
532 :
533 : void drm_mode_set_crtcinfo(struct drm_display_mode *p,
534 : int adjust_flags);
535 : void drm_mode_copy(struct drm_display_mode *dst,
536 : const struct drm_display_mode *src);
537 : void drm_mode_init(struct drm_display_mode *dst,
538 : const struct drm_display_mode *src);
539 : struct drm_display_mode *drm_mode_duplicate(struct drm_device *dev,
540 : const struct drm_display_mode *mode);
541 : bool drm_mode_match(const struct drm_display_mode *mode1,
542 : const struct drm_display_mode *mode2,
543 : unsigned int match_flags);
544 : bool drm_mode_equal(const struct drm_display_mode *mode1,
545 : const struct drm_display_mode *mode2);
546 : bool drm_mode_equal_no_clocks(const struct drm_display_mode *mode1,
547 : const struct drm_display_mode *mode2);
548 : bool drm_mode_equal_no_clocks_no_stereo(const struct drm_display_mode *mode1,
549 : const struct drm_display_mode *mode2);
550 :
551 : /* for use by the crtc helper probe functions */
552 : enum drm_mode_status drm_mode_validate_driver(struct drm_device *dev,
553 : const struct drm_display_mode *mode);
554 : enum drm_mode_status drm_mode_validate_size(const struct drm_display_mode *mode,
555 : int maxX, int maxY);
556 : enum drm_mode_status
557 : drm_mode_validate_ycbcr420(const struct drm_display_mode *mode,
558 : struct drm_connector *connector);
559 : void drm_mode_prune_invalid(struct drm_device *dev,
560 : struct list_head *mode_list, bool verbose);
561 : void drm_mode_sort(struct list_head *mode_list);
562 : void drm_connector_list_update(struct drm_connector *connector);
563 :
564 : /* parsing cmdline modes */
565 : bool
566 : drm_mode_parse_command_line_for_connector(const char *mode_option,
567 : const struct drm_connector *connector,
568 : struct drm_cmdline_mode *mode);
569 : struct drm_display_mode *
570 : drm_mode_create_from_cmdline_mode(struct drm_device *dev,
571 : struct drm_cmdline_mode *cmd);
572 :
573 : #endif /* __DRM_MODES_H__ */
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