xref: /openbmc/linux/include/drm/drm_crtc.h (revision acc6a093)
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  *
7  * Permission is hereby granted, free of charge, to any person obtaining a
8  * copy of this software and associated documentation files (the "Software"),
9  * to deal in the Software without restriction, including without limitation
10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11  * and/or sell copies of the Software, and to permit persons to whom the
12  * Software is furnished to do so, subject to the following conditions:
13  *
14  * The above copyright notice and this permission notice shall be included in
15  * all copies or substantial portions of the Software.
16  *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
20  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
21  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23  * OTHER DEALINGS IN THE SOFTWARE.
24  */
25 #ifndef __DRM_CRTC_H__
26 #define __DRM_CRTC_H__
27 
28 #include <linux/i2c.h>
29 #include <linux/spinlock.h>
30 #include <linux/types.h>
31 #include <linux/idr.h>
32 
33 #include <linux/fb.h>
34 
35 struct drm_device;
36 struct drm_mode_set;
37 struct drm_framebuffer;
38 
39 
40 #define DRM_MODE_OBJECT_CRTC 0xcccccccc
41 #define DRM_MODE_OBJECT_CONNECTOR 0xc0c0c0c0
42 #define DRM_MODE_OBJECT_ENCODER 0xe0e0e0e0
43 #define DRM_MODE_OBJECT_MODE 0xdededede
44 #define DRM_MODE_OBJECT_PROPERTY 0xb0b0b0b0
45 #define DRM_MODE_OBJECT_FB 0xfbfbfbfb
46 #define DRM_MODE_OBJECT_BLOB 0xbbbbbbbb
47 
48 struct drm_mode_object {
49 	uint32_t id;
50 	uint32_t type;
51 };
52 
53 /*
54  * Note on terminology:  here, for brevity and convenience, we refer to connector
55  * control chips as 'CRTCs'.  They can control any type of connector, VGA, LVDS,
56  * DVI, etc.  And 'screen' refers to the whole of the visible display, which
57  * may span multiple monitors (and therefore multiple CRTC and connector
58  * structures).
59  */
60 
61 enum drm_mode_status {
62     MODE_OK	= 0,	/* Mode OK */
63     MODE_HSYNC,		/* hsync out of range */
64     MODE_VSYNC,		/* vsync out of range */
65     MODE_H_ILLEGAL,	/* mode has illegal horizontal timings */
66     MODE_V_ILLEGAL,	/* mode has illegal horizontal timings */
67     MODE_BAD_WIDTH,	/* requires an unsupported linepitch */
68     MODE_NOMODE,	/* no mode with a maching name */
69     MODE_NO_INTERLACE,	/* interlaced mode not supported */
70     MODE_NO_DBLESCAN,	/* doublescan mode not supported */
71     MODE_NO_VSCAN,	/* multiscan mode not supported */
72     MODE_MEM,		/* insufficient video memory */
73     MODE_VIRTUAL_X,	/* mode width too large for specified virtual size */
74     MODE_VIRTUAL_Y,	/* mode height too large for specified virtual size */
75     MODE_MEM_VIRT,	/* insufficient video memory given virtual size */
76     MODE_NOCLOCK,	/* no fixed clock available */
77     MODE_CLOCK_HIGH,	/* clock required is too high */
78     MODE_CLOCK_LOW,	/* clock required is too low */
79     MODE_CLOCK_RANGE,	/* clock/mode isn't in a ClockRange */
80     MODE_BAD_HVALUE,	/* horizontal timing was out of range */
81     MODE_BAD_VVALUE,	/* vertical timing was out of range */
82     MODE_BAD_VSCAN,	/* VScan value out of range */
83     MODE_HSYNC_NARROW,	/* horizontal sync too narrow */
84     MODE_HSYNC_WIDE,	/* horizontal sync too wide */
85     MODE_HBLANK_NARROW,	/* horizontal blanking too narrow */
86     MODE_HBLANK_WIDE,	/* horizontal blanking too wide */
87     MODE_VSYNC_NARROW,	/* vertical sync too narrow */
88     MODE_VSYNC_WIDE,	/* vertical sync too wide */
89     MODE_VBLANK_NARROW,	/* vertical blanking too narrow */
90     MODE_VBLANK_WIDE,	/* vertical blanking too wide */
91     MODE_PANEL,         /* exceeds panel dimensions */
92     MODE_INTERLACE_WIDTH, /* width too large for interlaced mode */
93     MODE_ONE_WIDTH,     /* only one width is supported */
94     MODE_ONE_HEIGHT,    /* only one height is supported */
95     MODE_ONE_SIZE,      /* only one resolution is supported */
96     MODE_NO_REDUCED,    /* monitor doesn't accept reduced blanking */
97     MODE_UNVERIFIED = -3, /* mode needs to reverified */
98     MODE_BAD = -2,	/* unspecified reason */
99     MODE_ERROR	= -1	/* error condition */
100 };
101 
102 #define DRM_MODE_TYPE_CLOCK_CRTC_C (DRM_MODE_TYPE_CLOCK_C | \
103 				    DRM_MODE_TYPE_CRTC_C)
104 
105 #define DRM_MODE(nm, t, c, hd, hss, hse, ht, hsk, vd, vss, vse, vt, vs, f) \
106 	.name = nm, .status = 0, .type = (t), .clock = (c), \
107 	.hdisplay = (hd), .hsync_start = (hss), .hsync_end = (hse), \
108 	.htotal = (ht), .hskew = (hsk), .vdisplay = (vd), \
109 	.vsync_start = (vss), .vsync_end = (vse), .vtotal = (vt), \
110 	.vscan = (vs), .flags = (f), .vrefresh = 0
111 
112 #define CRTC_INTERLACE_HALVE_V 0x1 /* halve V values for interlacing */
113 
114 struct drm_display_mode {
115 	/* Header */
116 	struct list_head head;
117 	struct drm_mode_object base;
118 
119 	char name[DRM_DISPLAY_MODE_LEN];
120 
121 	int connector_count;
122 	enum drm_mode_status status;
123 	int type;
124 
125 	/* Proposed mode values */
126 	int clock;		/* in kHz */
127 	int hdisplay;
128 	int hsync_start;
129 	int hsync_end;
130 	int htotal;
131 	int hskew;
132 	int vdisplay;
133 	int vsync_start;
134 	int vsync_end;
135 	int vtotal;
136 	int vscan;
137 	unsigned int flags;
138 
139 	/* Addressable image size (may be 0 for projectors, etc.) */
140 	int width_mm;
141 	int height_mm;
142 
143 	/* Actual mode we give to hw */
144 	int clock_index;
145 	int synth_clock;
146 	int crtc_hdisplay;
147 	int crtc_hblank_start;
148 	int crtc_hblank_end;
149 	int crtc_hsync_start;
150 	int crtc_hsync_end;
151 	int crtc_htotal;
152 	int crtc_hskew;
153 	int crtc_vdisplay;
154 	int crtc_vblank_start;
155 	int crtc_vblank_end;
156 	int crtc_vsync_start;
157 	int crtc_vsync_end;
158 	int crtc_vtotal;
159 	int crtc_hadjusted;
160 	int crtc_vadjusted;
161 
162 	/* Driver private mode info */
163 	int private_size;
164 	int *private;
165 	int private_flags;
166 
167 	int vrefresh;		/* in Hz */
168 	int hsync;		/* in kHz */
169 };
170 
171 enum drm_connector_status {
172 	connector_status_connected = 1,
173 	connector_status_disconnected = 2,
174 	connector_status_unknown = 3,
175 };
176 
177 enum subpixel_order {
178 	SubPixelUnknown = 0,
179 	SubPixelHorizontalRGB,
180 	SubPixelHorizontalBGR,
181 	SubPixelVerticalRGB,
182 	SubPixelVerticalBGR,
183 	SubPixelNone,
184 };
185 
186 
187 /*
188  * Describes a given display (e.g. CRT or flat panel) and its limitations.
189  */
190 struct drm_display_info {
191 	char name[DRM_DISPLAY_INFO_LEN];
192 	/* Input info */
193 	bool serration_vsync;
194 	bool sync_on_green;
195 	bool composite_sync;
196 	bool separate_syncs;
197 	bool blank_to_black;
198 	unsigned char video_level;
199 	bool digital;
200 	/* Physical size */
201         unsigned int width_mm;
202 	unsigned int height_mm;
203 
204 	/* Display parameters */
205 	unsigned char gamma; /* FIXME: storage format */
206 	bool gtf_supported;
207 	bool standard_color;
208 	enum {
209 		monochrome = 0,
210 		rgb,
211 		other,
212 		unknown,
213 	} display_type;
214 	bool active_off_supported;
215 	bool suspend_supported;
216 	bool standby_supported;
217 
218 	/* Color info FIXME: storage format */
219 	unsigned short redx, redy;
220 	unsigned short greenx, greeny;
221 	unsigned short bluex, bluey;
222 	unsigned short whitex, whitey;
223 
224 	/* Clock limits FIXME: storage format */
225 	unsigned int min_vfreq, max_vfreq;
226 	unsigned int min_hfreq, max_hfreq;
227 	unsigned int pixel_clock;
228 
229 	/* White point indices FIXME: storage format */
230 	unsigned int wpx1, wpy1;
231 	unsigned int wpgamma1;
232 	unsigned int wpx2, wpy2;
233 	unsigned int wpgamma2;
234 
235 	enum subpixel_order subpixel_order;
236 
237 	char *raw_edid; /* if any */
238 };
239 
240 struct drm_framebuffer_funcs {
241 	void (*destroy)(struct drm_framebuffer *framebuffer);
242 	int (*create_handle)(struct drm_framebuffer *fb,
243 			     struct drm_file *file_priv,
244 			     unsigned int *handle);
245 	/**
246 	 * Optinal callback for the dirty fb ioctl.
247 	 *
248 	 * Userspace can notify the driver via this callback
249 	 * that a area of the framebuffer has changed and should
250 	 * be flushed to the display hardware.
251 	 *
252 	 * See documentation in drm_mode.h for the struct
253 	 * drm_mode_fb_dirty_cmd for more information as all
254 	 * the semantics and arguments have a one to one mapping
255 	 * on this function.
256 	 */
257 	int (*dirty)(struct drm_framebuffer *framebuffer, unsigned flags,
258 		     unsigned color, struct drm_clip_rect *clips,
259 		     unsigned num_clips);
260 };
261 
262 struct drm_framebuffer {
263 	struct drm_device *dev;
264 	struct list_head head;
265 	struct drm_mode_object base;
266 	const struct drm_framebuffer_funcs *funcs;
267 	unsigned int pitch;
268 	unsigned int width;
269 	unsigned int height;
270 	/* depth can be 15 or 16 */
271 	unsigned int depth;
272 	int bits_per_pixel;
273 	int flags;
274 	struct fb_info *fbdev;
275 	u32 pseudo_palette[17];
276 	struct list_head filp_head;
277 	/* if you are using the helper */
278 	void *helper_private;
279 };
280 
281 struct drm_property_blob {
282 	struct drm_mode_object base;
283 	struct list_head head;
284 	unsigned int length;
285 	void *data;
286 };
287 
288 struct drm_property_enum {
289 	uint64_t value;
290 	struct list_head head;
291 	char name[DRM_PROP_NAME_LEN];
292 };
293 
294 struct drm_property {
295 	struct list_head head;
296 	struct drm_mode_object base;
297 	uint32_t flags;
298 	char name[DRM_PROP_NAME_LEN];
299 	uint32_t num_values;
300 	uint64_t *values;
301 
302 	struct list_head enum_blob_list;
303 };
304 
305 struct drm_crtc;
306 struct drm_connector;
307 struct drm_encoder;
308 struct drm_pending_vblank_event;
309 
310 /**
311  * drm_crtc_funcs - control CRTCs for a given device
312  * @dpms: control display power levels
313  * @save: save CRTC state
314  * @resore: restore CRTC state
315  * @lock: lock the CRTC
316  * @unlock: unlock the CRTC
317  * @shadow_allocate: allocate shadow pixmap
318  * @shadow_create: create shadow pixmap for rotation support
319  * @shadow_destroy: free shadow pixmap
320  * @mode_fixup: fixup proposed mode
321  * @mode_set: set the desired mode on the CRTC
322  * @gamma_set: specify color ramp for CRTC
323  * @destroy: deinit and free object.
324  *
325  * The drm_crtc_funcs structure is the central CRTC management structure
326  * in the DRM.  Each CRTC controls one or more connectors (note that the name
327  * CRTC is simply historical, a CRTC may control LVDS, VGA, DVI, TV out, etc.
328  * connectors, not just CRTs).
329  *
330  * Each driver is responsible for filling out this structure at startup time,
331  * in addition to providing other modesetting features, like i2c and DDC
332  * bus accessors.
333  */
334 struct drm_crtc_funcs {
335 	/* Save CRTC state */
336 	void (*save)(struct drm_crtc *crtc); /* suspend? */
337 	/* Restore CRTC state */
338 	void (*restore)(struct drm_crtc *crtc); /* resume? */
339 
340 	/* cursor controls */
341 	int (*cursor_set)(struct drm_crtc *crtc, struct drm_file *file_priv,
342 			  uint32_t handle, uint32_t width, uint32_t height);
343 	int (*cursor_move)(struct drm_crtc *crtc, int x, int y);
344 
345 	/* Set gamma on the CRTC */
346 	void (*gamma_set)(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b,
347 			  uint32_t size);
348 	/* Object destroy routine */
349 	void (*destroy)(struct drm_crtc *crtc);
350 
351 	int (*set_config)(struct drm_mode_set *set);
352 
353 	/*
354 	 * Flip to the given framebuffer.  This implements the page
355 	 * flip ioctl descibed in drm_mode.h, specifically, the
356 	 * implementation must return immediately and block all
357 	 * rendering to the current fb until the flip has completed.
358 	 * If userspace set the event flag in the ioctl, the event
359 	 * argument will point to an event to send back when the flip
360 	 * completes, otherwise it will be NULL.
361 	 */
362 	int (*page_flip)(struct drm_crtc *crtc,
363 			 struct drm_framebuffer *fb,
364 			 struct drm_pending_vblank_event *event);
365 };
366 
367 /**
368  * drm_crtc - central CRTC control structure
369  * @enabled: is this CRTC enabled?
370  * @x: x position on screen
371  * @y: y position on screen
372  * @desired_mode: new desired mode
373  * @desired_x: desired x for desired_mode
374  * @desired_y: desired y for desired_mode
375  * @funcs: CRTC control functions
376  *
377  * Each CRTC may have one or more connectors associated with it.  This structure
378  * allows the CRTC to be controlled.
379  */
380 struct drm_crtc {
381 	struct drm_device *dev;
382 	struct list_head head;
383 
384 	struct drm_mode_object base;
385 
386 	/* framebuffer the connector is currently bound to */
387 	struct drm_framebuffer *fb;
388 
389 	bool enabled;
390 
391 	struct drm_display_mode mode;
392 
393 	int x, y;
394 	struct drm_display_mode *desired_mode;
395 	int desired_x, desired_y;
396 	const struct drm_crtc_funcs *funcs;
397 
398 	/* CRTC gamma size for reporting to userspace */
399 	uint32_t gamma_size;
400 	uint16_t *gamma_store;
401 
402 	/* if you are using the helper */
403 	void *helper_private;
404 };
405 
406 
407 /**
408  * drm_connector_funcs - control connectors on a given device
409  * @dpms: set power state (see drm_crtc_funcs above)
410  * @save: save connector state
411  * @restore: restore connector state
412  * @mode_valid: is this mode valid on the given connector?
413  * @mode_fixup: try to fixup proposed mode for this connector
414  * @mode_set: set this mode
415  * @detect: is this connector active?
416  * @get_modes: get mode list for this connector
417  * @set_property: property for this connector may need update
418  * @destroy: make object go away
419  * @force: notify the driver the connector is forced on
420  *
421  * Each CRTC may have one or more connectors attached to it.  The functions
422  * below allow the core DRM code to control connectors, enumerate available modes,
423  * etc.
424  */
425 struct drm_connector_funcs {
426 	void (*dpms)(struct drm_connector *connector, int mode);
427 	void (*save)(struct drm_connector *connector);
428 	void (*restore)(struct drm_connector *connector);
429 	enum drm_connector_status (*detect)(struct drm_connector *connector);
430 	int (*fill_modes)(struct drm_connector *connector, uint32_t max_width, uint32_t max_height);
431 	int (*set_property)(struct drm_connector *connector, struct drm_property *property,
432 			     uint64_t val);
433 	void (*destroy)(struct drm_connector *connector);
434 	void (*force)(struct drm_connector *connector);
435 };
436 
437 struct drm_encoder_funcs {
438 	void (*destroy)(struct drm_encoder *encoder);
439 };
440 
441 #define DRM_CONNECTOR_MAX_UMODES 16
442 #define DRM_CONNECTOR_MAX_PROPERTY 16
443 #define DRM_CONNECTOR_LEN 32
444 #define DRM_CONNECTOR_MAX_ENCODER 2
445 
446 /**
447  * drm_encoder - central DRM encoder structure
448  */
449 struct drm_encoder {
450 	struct drm_device *dev;
451 	struct list_head head;
452 
453 	struct drm_mode_object base;
454 	int encoder_type;
455 	uint32_t possible_crtcs;
456 	uint32_t possible_clones;
457 
458 	struct drm_crtc *crtc;
459 	const struct drm_encoder_funcs *funcs;
460 	void *helper_private;
461 };
462 
463 enum drm_connector_force {
464 	DRM_FORCE_UNSPECIFIED,
465 	DRM_FORCE_OFF,
466 	DRM_FORCE_ON,         /* force on analog part normally */
467 	DRM_FORCE_ON_DIGITAL, /* for DVI-I use digital connector */
468 };
469 
470 /**
471  * drm_connector - central DRM connector control structure
472  * @crtc: CRTC this connector is currently connected to, NULL if none
473  * @interlace_allowed: can this connector handle interlaced modes?
474  * @doublescan_allowed: can this connector handle doublescan?
475  * @available_modes: modes available on this connector (from get_modes() + user)
476  * @initial_x: initial x position for this connector
477  * @initial_y: initial y position for this connector
478  * @status: connector connected?
479  * @funcs: connector control functions
480  *
481  * Each connector may be connected to one or more CRTCs, or may be clonable by
482  * another connector if they can share a CRTC.  Each connector also has a specific
483  * position in the broader display (referred to as a 'screen' though it could
484  * span multiple monitors).
485  */
486 struct drm_connector {
487 	struct drm_device *dev;
488 	struct device kdev;
489 	struct device_attribute *attr;
490 	struct list_head head;
491 
492 	struct drm_mode_object base;
493 
494 	int connector_type;
495 	int connector_type_id;
496 	bool interlace_allowed;
497 	bool doublescan_allowed;
498 	struct list_head modes; /* list of modes on this connector */
499 
500 	int initial_x, initial_y;
501 	enum drm_connector_status status;
502 
503 	/* these are modes added by probing with DDC or the BIOS */
504 	struct list_head probed_modes;
505 
506 	struct drm_display_info display_info;
507 	const struct drm_connector_funcs *funcs;
508 
509 	struct list_head user_modes;
510 	struct drm_property_blob *edid_blob_ptr;
511 	u32 property_ids[DRM_CONNECTOR_MAX_PROPERTY];
512 	uint64_t property_values[DRM_CONNECTOR_MAX_PROPERTY];
513 
514 	/* requested DPMS state */
515 	int dpms;
516 
517 	void *helper_private;
518 
519 	/* forced on connector */
520 	enum drm_connector_force force;
521 	uint32_t encoder_ids[DRM_CONNECTOR_MAX_ENCODER];
522 	uint32_t force_encoder_id;
523 	struct drm_encoder *encoder; /* currently active encoder */
524 	void *fb_helper_private;
525 };
526 
527 /**
528  * struct drm_mode_set
529  *
530  * Represents a single crtc the connectors that it drives with what mode
531  * and from which framebuffer it scans out from.
532  *
533  * This is used to set modes.
534  */
535 struct drm_mode_set {
536 	struct list_head head;
537 
538 	struct drm_framebuffer *fb;
539 	struct drm_crtc *crtc;
540 	struct drm_display_mode *mode;
541 
542 	uint32_t x;
543 	uint32_t y;
544 
545 	struct drm_connector **connectors;
546 	size_t num_connectors;
547 };
548 
549 /**
550  * struct drm_mode_config_funcs - configure CRTCs for a given screen layout
551  * @resize: adjust CRTCs as necessary for the proposed layout
552  *
553  * Currently only a resize hook is available.  DRM will call back into the
554  * driver with a new screen width and height.  If the driver can't support
555  * the proposed size, it can return false.  Otherwise it should adjust
556  * the CRTC<->connector mappings as needed and update its view of the screen.
557  */
558 struct drm_mode_config_funcs {
559 	struct drm_framebuffer *(*fb_create)(struct drm_device *dev, struct drm_file *file_priv, struct drm_mode_fb_cmd *mode_cmd);
560 	int (*fb_changed)(struct drm_device *dev);
561 };
562 
563 struct drm_mode_group {
564 	uint32_t num_crtcs;
565 	uint32_t num_encoders;
566 	uint32_t num_connectors;
567 
568 	/* list of object IDs for this group */
569 	uint32_t *id_list;
570 };
571 
572 /**
573  * drm_mode_config - Mode configuration control structure
574  *
575  */
576 struct drm_mode_config {
577 	struct mutex mutex; /* protects configuration (mode lists etc.) */
578 	struct mutex idr_mutex; /* for IDR management */
579 	struct idr crtc_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */
580 	/* this is limited to one for now */
581 	int num_fb;
582 	struct list_head fb_list;
583 	int num_connector;
584 	struct list_head connector_list;
585 	int num_encoder;
586 	struct list_head encoder_list;
587 
588 	int num_crtc;
589 	struct list_head crtc_list;
590 
591 	struct list_head property_list;
592 
593 	/* in-kernel framebuffers - hung of filp_head in drm_framebuffer */
594 	struct list_head fb_kernel_list;
595 
596 	int min_width, min_height;
597 	int max_width, max_height;
598 	struct drm_mode_config_funcs *funcs;
599 	resource_size_t fb_base;
600 
601 	/* pointers to standard properties */
602 	struct list_head property_blob_list;
603 	struct drm_property *edid_property;
604 	struct drm_property *dpms_property;
605 
606 	/* DVI-I properties */
607 	struct drm_property *dvi_i_subconnector_property;
608 	struct drm_property *dvi_i_select_subconnector_property;
609 
610 	/* TV properties */
611 	struct drm_property *tv_subconnector_property;
612 	struct drm_property *tv_select_subconnector_property;
613 	struct drm_property *tv_mode_property;
614 	struct drm_property *tv_left_margin_property;
615 	struct drm_property *tv_right_margin_property;
616 	struct drm_property *tv_top_margin_property;
617 	struct drm_property *tv_bottom_margin_property;
618 	struct drm_property *tv_brightness_property;
619 	struct drm_property *tv_contrast_property;
620 	struct drm_property *tv_flicker_reduction_property;
621 	struct drm_property *tv_overscan_property;
622 	struct drm_property *tv_saturation_property;
623 	struct drm_property *tv_hue_property;
624 
625 	/* Optional properties */
626 	struct drm_property *scaling_mode_property;
627 	struct drm_property *dithering_mode_property;
628 	struct drm_property *dirty_info_property;
629 };
630 
631 #define obj_to_crtc(x) container_of(x, struct drm_crtc, base)
632 #define obj_to_connector(x) container_of(x, struct drm_connector, base)
633 #define obj_to_encoder(x) container_of(x, struct drm_encoder, base)
634 #define obj_to_mode(x) container_of(x, struct drm_display_mode, base)
635 #define obj_to_fb(x) container_of(x, struct drm_framebuffer, base)
636 #define obj_to_property(x) container_of(x, struct drm_property, base)
637 #define obj_to_blob(x) container_of(x, struct drm_property_blob, base)
638 
639 
640 extern void drm_crtc_init(struct drm_device *dev,
641 			  struct drm_crtc *crtc,
642 			  const struct drm_crtc_funcs *funcs);
643 extern void drm_crtc_cleanup(struct drm_crtc *crtc);
644 
645 extern void drm_connector_init(struct drm_device *dev,
646 			    struct drm_connector *connector,
647 			    const struct drm_connector_funcs *funcs,
648 			    int connector_type);
649 
650 extern void drm_connector_cleanup(struct drm_connector *connector);
651 
652 extern void drm_encoder_init(struct drm_device *dev,
653 			     struct drm_encoder *encoder,
654 			     const struct drm_encoder_funcs *funcs,
655 			     int encoder_type);
656 
657 extern void drm_encoder_cleanup(struct drm_encoder *encoder);
658 
659 extern char *drm_get_connector_name(struct drm_connector *connector);
660 extern char *drm_get_dpms_name(int val);
661 extern char *drm_get_dvi_i_subconnector_name(int val);
662 extern char *drm_get_dvi_i_select_name(int val);
663 extern char *drm_get_tv_subconnector_name(int val);
664 extern char *drm_get_tv_select_name(int val);
665 extern void drm_fb_release(struct drm_file *file_priv);
666 extern int drm_mode_group_init_legacy_group(struct drm_device *dev, struct drm_mode_group *group);
667 extern struct edid *drm_get_edid(struct drm_connector *connector,
668 				 struct i2c_adapter *adapter);
669 extern int drm_do_probe_ddc_edid(struct i2c_adapter *adapter,
670 				 unsigned char *buf, int len);
671 extern int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid);
672 extern void drm_mode_probed_add(struct drm_connector *connector, struct drm_display_mode *mode);
673 extern void drm_mode_remove(struct drm_connector *connector, struct drm_display_mode *mode);
674 extern struct drm_display_mode *drm_mode_duplicate(struct drm_device *dev,
675 						   struct drm_display_mode *mode);
676 extern void drm_mode_debug_printmodeline(struct drm_display_mode *mode);
677 extern void drm_mode_config_init(struct drm_device *dev);
678 extern void drm_mode_config_cleanup(struct drm_device *dev);
679 extern void drm_mode_set_name(struct drm_display_mode *mode);
680 extern bool drm_mode_equal(struct drm_display_mode *mode1, struct drm_display_mode *mode2);
681 extern int drm_mode_width(struct drm_display_mode *mode);
682 extern int drm_mode_height(struct drm_display_mode *mode);
683 
684 /* for us by fb module */
685 extern int drm_mode_attachmode_crtc(struct drm_device *dev,
686 				    struct drm_crtc *crtc,
687 				    struct drm_display_mode *mode);
688 extern int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode);
689 
690 extern struct drm_display_mode *drm_mode_create(struct drm_device *dev);
691 extern void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode);
692 extern void drm_mode_list_concat(struct list_head *head,
693 				 struct list_head *new);
694 extern void drm_mode_validate_size(struct drm_device *dev,
695 				   struct list_head *mode_list,
696 				   int maxX, int maxY, int maxPitch);
697 extern void drm_mode_prune_invalid(struct drm_device *dev,
698 				   struct list_head *mode_list, bool verbose);
699 extern void drm_mode_sort(struct list_head *mode_list);
700 extern int drm_mode_hsync(struct drm_display_mode *mode);
701 extern int drm_mode_vrefresh(struct drm_display_mode *mode);
702 extern void drm_mode_set_crtcinfo(struct drm_display_mode *p,
703 				  int adjust_flags);
704 extern void drm_mode_connector_list_update(struct drm_connector *connector);
705 extern int drm_mode_connector_update_edid_property(struct drm_connector *connector,
706 						struct edid *edid);
707 extern int drm_connector_property_set_value(struct drm_connector *connector,
708 					 struct drm_property *property,
709 					 uint64_t value);
710 extern int drm_connector_property_get_value(struct drm_connector *connector,
711 					 struct drm_property *property,
712 					 uint64_t *value);
713 extern struct drm_display_mode *drm_crtc_mode_create(struct drm_device *dev);
714 extern void drm_framebuffer_set_object(struct drm_device *dev,
715 				       unsigned long handle);
716 extern int drm_framebuffer_init(struct drm_device *dev,
717 				struct drm_framebuffer *fb,
718 				const struct drm_framebuffer_funcs *funcs);
719 extern void drm_framebuffer_cleanup(struct drm_framebuffer *fb);
720 extern int drmfb_probe(struct drm_device *dev, struct drm_crtc *crtc);
721 extern int drmfb_remove(struct drm_device *dev, struct drm_framebuffer *fb);
722 extern void drm_crtc_probe_connector_modes(struct drm_device *dev, int maxX, int maxY);
723 extern bool drm_crtc_in_use(struct drm_crtc *crtc);
724 
725 extern int drm_connector_attach_property(struct drm_connector *connector,
726 				      struct drm_property *property, uint64_t init_val);
727 extern struct drm_property *drm_property_create(struct drm_device *dev, int flags,
728 						const char *name, int num_values);
729 extern void drm_property_destroy(struct drm_device *dev, struct drm_property *property);
730 extern int drm_property_add_enum(struct drm_property *property, int index,
731 				 uint64_t value, const char *name);
732 extern int drm_mode_create_dvi_i_properties(struct drm_device *dev);
733 extern int drm_mode_create_tv_properties(struct drm_device *dev, int num_formats,
734 				     char *formats[]);
735 extern int drm_mode_create_scaling_mode_property(struct drm_device *dev);
736 extern int drm_mode_create_dithering_property(struct drm_device *dev);
737 extern int drm_mode_create_dirty_info_property(struct drm_device *dev);
738 extern char *drm_get_encoder_name(struct drm_encoder *encoder);
739 
740 extern int drm_mode_connector_attach_encoder(struct drm_connector *connector,
741 					     struct drm_encoder *encoder);
742 extern void drm_mode_connector_detach_encoder(struct drm_connector *connector,
743 					   struct drm_encoder *encoder);
744 extern bool drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
745 					 int gamma_size);
746 extern struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
747 		uint32_t id, uint32_t type);
748 /* IOCTLs */
749 extern int drm_mode_getresources(struct drm_device *dev,
750 				 void *data, struct drm_file *file_priv);
751 
752 extern int drm_mode_getcrtc(struct drm_device *dev,
753 			    void *data, struct drm_file *file_priv);
754 extern int drm_mode_getconnector(struct drm_device *dev,
755 			      void *data, struct drm_file *file_priv);
756 extern int drm_mode_setcrtc(struct drm_device *dev,
757 			    void *data, struct drm_file *file_priv);
758 extern int drm_mode_cursor_ioctl(struct drm_device *dev,
759 				void *data, struct drm_file *file_priv);
760 extern int drm_mode_addfb(struct drm_device *dev,
761 			  void *data, struct drm_file *file_priv);
762 extern int drm_mode_rmfb(struct drm_device *dev,
763 			 void *data, struct drm_file *file_priv);
764 extern int drm_mode_getfb(struct drm_device *dev,
765 			  void *data, struct drm_file *file_priv);
766 extern int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
767 				  void *data, struct drm_file *file_priv);
768 extern int drm_mode_addmode_ioctl(struct drm_device *dev,
769 				  void *data, struct drm_file *file_priv);
770 extern int drm_mode_rmmode_ioctl(struct drm_device *dev,
771 				 void *data, struct drm_file *file_priv);
772 extern int drm_mode_attachmode_ioctl(struct drm_device *dev,
773 				     void *data, struct drm_file *file_priv);
774 extern int drm_mode_detachmode_ioctl(struct drm_device *dev,
775 				     void *data, struct drm_file *file_priv);
776 
777 extern int drm_mode_getproperty_ioctl(struct drm_device *dev,
778 				      void *data, struct drm_file *file_priv);
779 extern int drm_mode_getblob_ioctl(struct drm_device *dev,
780 				  void *data, struct drm_file *file_priv);
781 extern int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
782 					      void *data, struct drm_file *file_priv);
783 extern int drm_mode_hotplug_ioctl(struct drm_device *dev,
784 				  void *data, struct drm_file *file_priv);
785 extern int drm_mode_replacefb(struct drm_device *dev,
786 			      void *data, struct drm_file *file_priv);
787 extern int drm_mode_getencoder(struct drm_device *dev,
788 			       void *data, struct drm_file *file_priv);
789 extern int drm_mode_gamma_get_ioctl(struct drm_device *dev,
790 				    void *data, struct drm_file *file_priv);
791 extern int drm_mode_gamma_set_ioctl(struct drm_device *dev,
792 				    void *data, struct drm_file *file_priv);
793 extern bool drm_detect_hdmi_monitor(struct edid *edid);
794 extern int drm_mode_page_flip_ioctl(struct drm_device *dev,
795 				    void *data, struct drm_file *file_priv);
796 extern struct drm_display_mode *drm_cvt_mode(struct drm_device *dev,
797 				int hdisplay, int vdisplay, int vrefresh,
798 				bool reduced, bool interlaced, bool margins);
799 extern struct drm_display_mode *drm_gtf_mode(struct drm_device *dev,
800 				int hdisplay, int vdisplay, int vrefresh,
801 				bool interlaced, int margins);
802 extern int drm_add_modes_noedid(struct drm_connector *connector,
803 				int hdisplay, int vdisplay);
804 
805 extern bool drm_edid_is_valid(struct edid *edid);
806 #endif /* __DRM_CRTC_H__ */
807