xf86Crtc.h@ 37801

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1	/*
2	* Copyright © 2006 Keith Packard
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	#ifndef _XF86CRTC_H_
23	#define _XF86CRTC_H_
24
25	#include <edid.h>
26	#include "randrstr.h"
27	#if XF86_MODES_RENAME
28	#include "xf86Rename.h"
29	#endif
30	#include "xf86Modes.h"
31	#include "xf86Cursor.h"
32	#include "xf86i2c.h"
33	#include "damage.h"
34	#include "picturestr.h"
35
36	/* Compat definitions for older X Servers. */
37	#ifndef M_T_PREFERRED
38	#define M_T_PREFERRED 0x08
39	#endif
40	#ifndef M_T_DRIVER
41	#define M_T_DRIVER 0x40
42	#endif
43	#ifndef M_T_USERPREF
44	#define M_T_USERPREF 0x80
45	#endif
46	#ifndef HARDWARE_CURSOR_ARGB
47	#define HARDWARE_CURSOR_ARGB 0x00004000
48	#endif
49
50	typedef struct _xf86Crtc xf86CrtcRec, *xf86CrtcPtr;
51	typedef struct _xf86Output xf86OutputRec, *xf86OutputPtr;
52
53	/* define a standard for connector types */
54	typedef enum _xf86ConnectorType {
55	XF86ConnectorNone,
56	XF86ConnectorVGA,
57	XF86ConnectorDVI_I,
58	XF86ConnectorDVI_D,
59	XF86ConnectorDVI_A,
60	XF86ConnectorComposite,
61	XF86ConnectorSvideo,
62	XF86ConnectorComponent,
63	XF86ConnectorLFP,
64	XF86ConnectorProprietary,
65	XF86ConnectorHDMI,
66	XF86ConnectorDisplayPort,
67	} xf86ConnectorType;
68
69	typedef enum _xf86OutputStatus {
70	XF86OutputStatusConnected,
71	XF86OutputStatusDisconnected,
72	XF86OutputStatusUnknown
73	} xf86OutputStatus;
74
75	typedef struct _xf86CrtcFuncs {
76	/**
77	* Turns the crtc on/off, or sets intermediate power levels if available.
78	*
79	* Unsupported intermediate modes drop to the lower power setting. If the
80	* mode is DPMSModeOff, the crtc must be disabled sufficiently for it to
81	* be safe to call mode_set.
82	*/
83	void
84	(*dpms)(xf86CrtcPtr crtc,
85	int mode);
86
87	/**
88	* Saves the crtc's state for restoration on VT switch.
89	*/
90	void
91	(*save)(xf86CrtcPtr crtc);
92
93	/**
94	* Restore's the crtc's state at VT switch.
95	*/
96	void
97	(*restore)(xf86CrtcPtr crtc);
98
99	/**
100	* Lock CRTC prior to mode setting, mostly for DRI.
101	* Returns whether unlock is needed
102	*/
103	Bool
104	(*lock) (xf86CrtcPtr crtc);
105
106	/**
107	* Unlock CRTC after mode setting, mostly for DRI
108	*/
109	void
110	(*unlock) (xf86CrtcPtr crtc);
111
112	/**
113	* Callback to adjust the mode to be set in the CRTC.
114	*
115	* This allows a CRTC to adjust the clock or even the entire set of
116	* timings, which is used for panels with fixed timings or for
117	* buses with clock limitations.
118	*/
119	Bool
120	(*mode_fixup)(xf86CrtcPtr crtc,
121	DisplayModePtr mode,
122	DisplayModePtr adjusted_mode);
123
124	/**
125	* Prepare CRTC for an upcoming mode set.
126	*/
127	void
128	(*prepare)(xf86CrtcPtr crtc);
129
130	/**
131	* Callback for setting up a video mode after fixups have been made.
132	*/
133	void
134	(*mode_set)(xf86CrtcPtr crtc,
135	DisplayModePtr mode,
136	DisplayModePtr adjusted_mode,
137	int x, int y);
138
139	/**
140	* Commit mode changes to a CRTC
141	*/
142	void
143	(*commit)(xf86CrtcPtr crtc);
144
145	/* Set the color ramps for the CRTC to the given values. */
146	void
147	(gamma_set)(xf86CrtcPtr crtc, CARD16 red, CARD16 green, CARD16 blue,
148	int size);
149
150	/**
151	* Allocate the shadow area, delay the pixmap creation until needed
152	*/
153	void *
154	(*shadow_allocate) (xf86CrtcPtr crtc, int width, int height);
155
156	/**
157	* Create shadow pixmap for rotation support
158	*/
159	PixmapPtr
160	(shadow_create) (xf86CrtcPtr crtc, void data, int width, int height);
161
162	/**
163	* Destroy shadow pixmap
164	*/
165	void
166	(shadow_destroy) (xf86CrtcPtr crtc, PixmapPtr pPixmap, void data);
167
168	/**
169	* Set cursor colors
170	*/
171	void
172	(*set_cursor_colors) (xf86CrtcPtr crtc, int bg, int fg);
173
174	/**
175	* Set cursor position
176	*/
177	void
178	(*set_cursor_position) (xf86CrtcPtr crtc, int x, int y);
179
180	/**
181	* Show cursor
182	*/
183	void
184	(*show_cursor) (xf86CrtcPtr crtc);
185
186	/**
187	* Hide cursor
188	*/
189	void
190	(*hide_cursor) (xf86CrtcPtr crtc);
191
192	/**
193	* Load monochrome image
194	*/
195	void
196	(load_cursor_image) (xf86CrtcPtr crtc, CARD8 image);
197
198	/**
199	* Load ARGB image
200	*/
201	void
202	(load_cursor_argb) (xf86CrtcPtr crtc, CARD32 image);
203
204	/**
205	* Clean up driver-specific bits of the crtc
206	*/
207	void
208	(*destroy) (xf86CrtcPtr crtc);
209
210	/**
211	* Less fine-grained mode setting entry point for kernel modesetting
212	*/
213	Bool
214	(*set_mode_major)(xf86CrtcPtr crtc, DisplayModePtr mode,
215	Rotation rotation, int x, int y);
216	} xf86CrtcFuncsRec, *xf86CrtcFuncsPtr;
217
218	struct _xf86Crtc {
219	/**
220	* Associated ScrnInfo
221	*/
222	ScrnInfoPtr scrn;
223
224	/**
225	* Active state of this CRTC
226	*
227	* Set when this CRTC is driving one or more outputs
228	*/
229	Bool enabled;
230
231	/**
232	* Active mode
233	*
234	* This reflects the mode as set in the CRTC currently
235	* It will be cleared when the VT is not active or
236	* during server startup
237	*/
238	DisplayModeRec mode;
239	Rotation rotation;
240	PixmapPtr rotatedPixmap;
241	void *rotatedData;
242
243	/**
244	* Position on screen
245	*
246	* Locates this CRTC within the frame buffer
247	*/
248	int x, y;
249
250	/**
251	* Desired mode
252	*
253	* This is set to the requested mode, independent of
254	* whether the VT is active. In particular, it receives
255	* the startup configured mode and saves the active mode
256	* on VT switch.
257	*/
258	DisplayModeRec desiredMode;
259	Rotation desiredRotation;
260	int desiredX, desiredY;
261
262	/** crtc-specific functions */
263	const xf86CrtcFuncsRec *funcs;
264
265	/**
266	* Driver private
267	*
268	* Holds driver-private information
269	*/
270	void *driver_private;
271
272	#ifdef RANDR_12_INTERFACE
273	/**
274	* RandR crtc
275	*
276	* When RandR 1.2 is available, this
277	* points at the associated crtc object
278	*/
279	RRCrtcPtr randr_crtc;
280	#else
281	void *randr_crtc;
282	#endif
283
284	/**
285	* Current cursor is ARGB
286	*/
287	Bool cursor_argb;
288	/**
289	* Track whether cursor is within CRTC range
290	*/
291	Bool cursor_in_range;
292	/**
293	* Track state of cursor associated with this CRTC
294	*/
295	Bool cursor_shown;
296
297	/**
298	* Current transformation matrix
299	*/
300	PictTransform crtc_to_framebuffer;
301	PictTransform framebuffer_to_crtc;
302	Bool transform_in_use;
303	/**
304	* Bounding box in screen space
305	*/
306	BoxRec bounds;
307	};
308
309	typedef struct _xf86OutputFuncs {
310	/**
311	* Called to allow the output a chance to create properties after the
312	* RandR objects have been created.
313	*/
314	void
315	(*create_resources)(xf86OutputPtr output);
316
317	/**
318	* Turns the output on/off, or sets intermediate power levels if available.
319	*
320	* Unsupported intermediate modes drop to the lower power setting. If the
321	* mode is DPMSModeOff, the output must be disabled, as the DPLL may be
322	* disabled afterwards.
323	*/
324	void
325	(*dpms)(xf86OutputPtr output,
326	int mode);
327
328	/**
329	* Saves the output's state for restoration on VT switch.
330	*/
331	void
332	(*save)(xf86OutputPtr output);
333
334	/**
335	* Restore's the output's state at VT switch.
336	*/
337	void
338	(*restore)(xf86OutputPtr output);
339
340	/**
341	* Callback for testing a video mode for a given output.
342	*
343	* This function should only check for cases where a mode can't be supported
344	* on the output specifically, and not represent generic CRTC limitations.
345	*
346	* \return MODE_OK if the mode is valid, or another MODE_* otherwise.
347	*/
348	int
349	(*mode_valid)(xf86OutputPtr output,
350	DisplayModePtr pMode);
351
352	/**
353	* Callback to adjust the mode to be set in the CRTC.
354	*
355	* This allows an output to adjust the clock or even the entire set of
356	* timings, which is used for panels with fixed timings or for
357	* buses with clock limitations.
358	*/
359	Bool
360	(*mode_fixup)(xf86OutputPtr output,
361	DisplayModePtr mode,
362	DisplayModePtr adjusted_mode);
363
364	/**
365	* Callback for preparing mode changes on an output
366	*/
367	void
368	(*prepare)(xf86OutputPtr output);
369
370	/**
371	* Callback for committing mode changes on an output
372	*/
373	void
374	(*commit)(xf86OutputPtr output);
375
376	/**
377	* Callback for setting up a video mode after fixups have been made.
378	*
379	* This is only called while the output is disabled. The dpms callback
380	* must be all that's necessary for the output, to turn the output on
381	* after this function is called.
382	*/
383	void
384	(*mode_set)(xf86OutputPtr output,
385	DisplayModePtr mode,
386	DisplayModePtr adjusted_mode);
387
388	/**
389	* Probe for a connected output, and return detect_status.
390	*/
391	xf86OutputStatus
392	(*detect)(xf86OutputPtr output);
393
394	/**
395	* Query the device for the modes it provides.
396	*
397	* This function may also update MonInfo, mm_width, and mm_height.
398	*
399	* \return singly-linked list of modes or NULL if no modes found.
400	*/
401	DisplayModePtr
402	(*get_modes)(xf86OutputPtr output);
403
404	#ifdef RANDR_12_INTERFACE
405	/**
406	* Callback when an output's property has changed.
407	*/
408	Bool
409	(*set_property)(xf86OutputPtr output,
410	Atom property,
411	RRPropertyValuePtr value);
412	#endif
413	/**
414	* Clean up driver-specific bits of the output
415	*/
416	void
417	(*destroy) (xf86OutputPtr output);
418	} xf86OutputFuncsRec, *xf86OutputFuncsPtr;
419
420	struct _xf86Output {
421	/**
422	* Associated ScrnInfo
423	*/
424	ScrnInfoPtr scrn;
425
426	/**
427	* Currently connected crtc (if any)
428	*
429	* If this output is not in use, this field will be NULL.
430	*/
431	xf86CrtcPtr crtc;
432
433	/**
434	* Possible CRTCs for this output as a mask of crtc indices
435	*/
436	CARD32 possible_crtcs;
437
438	/**
439	* Possible outputs to share the same CRTC as a mask of output indices
440	*/
441	CARD32 possible_clones;
442
443	/**
444	* Whether this output can support interlaced modes
445	*/
446	Bool interlaceAllowed;
447
448	/**
449	* Whether this output can support double scan modes
450	*/
451	Bool doubleScanAllowed;
452
453	/**
454	* List of available modes on this output.
455	*
456	* This should be the list from get_modes(), plus perhaps additional
457	* compatible modes added later.
458	*/
459	DisplayModePtr probed_modes;
460
461	/**
462	* Options parsed from the related monitor section
463	*/
464	OptionInfoPtr options;
465
466	/**
467	* Configured monitor section
468	*/
469	XF86ConfMonitorPtr conf_monitor;
470
471	/**
472	* Desired initial position
473	*/
474	int initial_x, initial_y;
475
476	/**
477	* Desired initial rotation
478	*/
479	Rotation initial_rotation;
480
481	/**
482	* Current connection status
483	*
484	* This indicates whether a monitor is known to be connected
485	* to this output or not, or whether there is no way to tell
486	*/
487	xf86OutputStatus status;
488
489	/** EDID monitor information */
490	xf86MonPtr MonInfo;
491
492	/** subpixel order */
493	int subpixel_order;
494
495	/** Physical size of the currently attached output device. */
496	int mm_width, mm_height;
497
498	/** Output name */
499	char *name;
500
501	/** output-specific functions */
502	const xf86OutputFuncsRec *funcs;
503
504	/** driver private information */
505	void *driver_private;
506
507	/** Whether to use the old per-screen Monitor config section */
508	Bool use_screen_monitor;
509
510	#ifdef RANDR_12_INTERFACE
511	/**
512	* RandR 1.2 output structure.
513	*
514	* When RandR 1.2 is available, this points at the associated
515	* RandR output structure and is created when this output is created
516	*/
517	RROutputPtr randr_output;
518	#else
519	void *randr_output;
520	#endif
521	};
522
523	typedef struct _xf86CrtcConfigFuncs {
524	/**
525	* Requests that the driver resize the screen.
526	*
527	* The driver is responsible for updating scrn->virtualX and scrn->virtualY.
528	* If the requested size cannot be set, the driver should leave those values
529	* alone and return FALSE.
530	*
531	* A naive driver that cannot reallocate the screen may simply change
532	* virtual[XY]. A more advanced driver will want to also change the
533	* devPrivate.ptr and devKind of the screen pixmap, update any offscreen
534	* pixmaps it may have moved, and change pScrn->displayWidth.
535	*/
536	Bool
537	(*resize)(ScrnInfoPtr scrn,
538	int width,
539	int height);
540	} xf86CrtcConfigFuncsRec, *xf86CrtcConfigFuncsPtr;
541
542	typedef struct _xf86CrtcConfig {
543	int num_output;
544	xf86OutputPtr *output;
545	/**
546	* compat_output is used whenever we deal
547	* with legacy code that only understands a single
548	* output. pScrn->modes will be loaded from this output,
549	* adjust frame will whack this output, etc.
550	*/
551	int compat_output;
552
553	int num_crtc;
554	xf86CrtcPtr *crtc;
555
556	int minWidth, minHeight;
557	int maxWidth, maxHeight;
558
559	/* For crtc-based rotation */
560	DamagePtr rotation_damage;
561	Bool rotation_damage_registered;
562
563	/* DGA */
564	unsigned int dga_flags;
565	unsigned long dga_address;
566	DGAModePtr dga_modes;
567	int dga_nmode;
568	int dga_width, dga_height, dga_stride;
569	DisplayModePtr dga_save_mode;
570
571	const xf86CrtcConfigFuncsRec *funcs;
572
573	CreateScreenResourcesProcPtr CreateScreenResources;
574
575	CloseScreenProcPtr CloseScreen;
576
577	/* Cursor information */
578	xf86CursorInfoPtr cursor_info;
579	CursorPtr cursor;
580	CARD8 *cursor_image;
581	Bool cursor_on;
582	CARD32 cursor_fg, cursor_bg;
583
584	/**
585	* Options parsed from the related device section
586	*/
587	OptionInfoPtr options;
588
589	Bool debug_modes;
590
591	/* wrap screen BlockHandler for rotation */
592	ScreenBlockHandlerProcPtr BlockHandler;
593
594	} xf86CrtcConfigRec, *xf86CrtcConfigPtr;
595
596	extern int xf86CrtcConfigPrivateIndex;
597
598	#define XF86_CRTC_CONFIG_PTR(p) ((xf86CrtcConfigPtr) ((p)->privates[xf86CrtcConfigPrivateIndex].ptr))
599
600	/*
601	* Initialize xf86CrtcConfig structure
602	*/
603
604	void
605	xf86CrtcConfigInit (ScrnInfoPtr scrn,
606	const xf86CrtcConfigFuncsRec *funcs);
607
608	void
609	xf86CrtcSetSizeRange (ScrnInfoPtr scrn,
610	int minWidth, int minHeight,
611	int maxWidth, int maxHeight);
612
613	/*
614	* Crtc functions
615	*/
616	xf86CrtcPtr
617	xf86CrtcCreate (ScrnInfoPtr scrn,
618	const xf86CrtcFuncsRec *funcs);
619
620	void
621	xf86CrtcDestroy (xf86CrtcPtr crtc);
622
623
624	/**
625	* Sets the given video mode on the given crtc
626	*/
627	Bool
628	xf86CrtcSetMode (xf86CrtcPtr crtc, DisplayModePtr mode, Rotation rotation,
629	int x, int y);
630
631	/*
632	* Assign crtc rotation during mode set
633	*/
634	Bool
635	xf86CrtcRotate (xf86CrtcPtr crtc, DisplayModePtr mode, Rotation rotation);
636
637	/*
638	* Clean up rotation during CloseScreen
639	*/
640	void
641	xf86RotateCloseScreen (ScreenPtr pScreen);
642
643	/**
644	* Return whether any output is assigned to the crtc
645	*/
646	Bool
647	xf86CrtcInUse (xf86CrtcPtr crtc);
648
649	/*
650	* Output functions
651	*/
652	xf86OutputPtr
653	xf86OutputCreate (ScrnInfoPtr scrn,
654	const xf86OutputFuncsRec *funcs,
655	const char *name);
656
657	void
658	xf86OutputUseScreenMonitor (xf86OutputPtr output, Bool use_screen_monitor);
659
660	Bool
661	xf86OutputRename (xf86OutputPtr output, const char *name);
662
663	void
664	xf86OutputDestroy (xf86OutputPtr output);
665
666	void
667	xf86ProbeOutputModes (ScrnInfoPtr pScrn, int maxX, int maxY);
668
669	void
670	xf86SetScrnInfoModes (ScrnInfoPtr pScrn);
671
672	Bool
673	xf86CrtcScreenInit (ScreenPtr pScreen);
674
675	Bool
676	xf86InitialConfiguration (ScrnInfoPtr pScrn, Bool canGrow);
677
678	void
679	xf86DPMSSet(ScrnInfoPtr pScrn, int PowerManagementMode, int flags);
680
681	Bool
682	xf86SaveScreen(ScreenPtr pScreen, int mode);
683
684	void
685	xf86DisableUnusedFunctions(ScrnInfoPtr pScrn);
686
687	DisplayModePtr
688	xf86OutputFindClosestMode (xf86OutputPtr output, DisplayModePtr desired);
689
690	Bool
691	xf86SetSingleMode (ScrnInfoPtr pScrn, DisplayModePtr desired, Rotation rotation);
692
693	/**
694	* Set the EDID information for the specified output
695	*/
696	void
697	xf86OutputSetEDID (xf86OutputPtr output, xf86MonPtr edid_mon);
698
699	/**
700	* Return the list of modes supported by the EDID information
701	* stored in 'output'
702	*/
703	DisplayModePtr
704	xf86OutputGetEDIDModes (xf86OutputPtr output);
705
706	xf86MonPtr
707	xf86OutputGetEDID (xf86OutputPtr output, I2CBusPtr pDDCBus);
708
709	/**
710	* Initialize dga for this screen
711	*/
712
713	Bool
714	xf86DiDGAInit (ScreenPtr pScreen, unsigned long dga_address);
715
716	/**
717	* Re-initialize dga for this screen (as when the set of modes changes)
718	*/
719
720	Bool
721	xf86DiDGAReInit (ScreenPtr pScreen);
722
723	/*
724	* Set the subpixel order reported for the screen using
725	* the information from the outputs
726	*/
727
728	void
729	xf86CrtcSetScreenSubpixelOrder (ScreenPtr pScreen);
730
731	/*
732	* Get a standard string name for a connector type
733	*/
734	char *
735	xf86ConnectorGetName(xf86ConnectorType connector);
736
737	/*
738	* Using the desired mode information in each crtc, set
739	* modes (used in EnterVT functions, or at server startup)
740	*/
741
742	Bool
743	xf86SetDesiredModes (ScrnInfoPtr pScrn);
744
745	/**
746	* Initialize the CRTC-based cursor code. CRTC function vectors must
747	* contain relevant cursor setting functions.
748	*
749	* Driver should call this from ScreenInit function
750	*/
751	Bool
752	xf86_cursors_init (ScreenPtr screen, int max_width, int max_height, int flags);
753
754	/**
755	* Called when anything on the screen is reconfigured.
756	*
757	* Reloads cursor images as needed, then adjusts cursor positions.
758	*
759	* Driver should call this from crtc commit function.
760	*/
761	void
762	xf86_reload_cursors (ScreenPtr screen);
763
764	/**
765	* Called from EnterVT to turn the cursors back on
766	*/
767	void
768	xf86_show_cursors (ScrnInfoPtr scrn);
769
770	/**
771	* Called by the driver to turn cursors off
772	*/
773	void
774	xf86_hide_cursors (ScrnInfoPtr scrn);
775
776	/**
777	* Clean up CRTC-based cursor code. Driver must call this at CloseScreen time.
778	*/
779	void
780	xf86_cursors_fini (ScreenPtr screen);
781
782	/*
783	* For overlay video, compute the relevant CRTC and
784	* clip video to that.
785	* wraps xf86XVClipVideoHelper()
786	*/
787
788	Bool
789	xf86_crtc_clip_video_helper(ScrnInfoPtr pScrn,
790	xf86CrtcPtr *crtc_ret,
791	xf86CrtcPtr desired_crtc,
792	BoxPtr dst,
793	INT32 *xa,
794	INT32 *xb,
795	INT32 *ya,
796	INT32 *yb,
797	RegionPtr reg,
798	INT32 width,
799	INT32 height);
800
801	#endif /* _XF86CRTC_H_ */

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