2 * Copyright © 2006 Keith Packard
3 * Copyright © 2007-2008 Dave Airlie
4 * Copyright © 2007-2008 Intel Corporation
5 * Jesse Barnes <jesse.barnes@intel.com>
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:
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
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.
25 #ifndef __DRM_CRTC_H__
26 #define __DRM_CRTC_H__
28 #include <linux/i2c.h>
29 #include <linux/spinlock.h>
30 #include <linux/types.h>
31 #include <linux/idr.h>
34 #include <drm/drm_fourcc.h>
38 struct drm_framebuffer;
41 #define DRM_MODE_OBJECT_CRTC 0xcccccccc
42 #define DRM_MODE_OBJECT_CONNECTOR 0xc0c0c0c0
43 #define DRM_MODE_OBJECT_ENCODER 0xe0e0e0e0
44 #define DRM_MODE_OBJECT_MODE 0xdededede
45 #define DRM_MODE_OBJECT_PROPERTY 0xb0b0b0b0
46 #define DRM_MODE_OBJECT_FB 0xfbfbfbfb
47 #define DRM_MODE_OBJECT_BLOB 0xbbbbbbbb
48 #define DRM_MODE_OBJECT_PLANE 0xeeeeeeee
49 #define DRM_MODE_OBJECT_BRIDGE 0xbdbdbdbd
51 struct drm_mode_object {
57 * Note on terminology: here, for brevity and convenience, we refer to connector
58 * control chips as 'CRTCs'. They can control any type of connector, VGA, LVDS,
59 * DVI, etc. And 'screen' refers to the whole of the visible display, which
60 * may span multiple monitors (and therefore multiple CRTC and connector
64 enum drm_mode_status {
65 MODE_OK = 0, /* Mode OK */
66 MODE_HSYNC, /* hsync out of range */
67 MODE_VSYNC, /* vsync out of range */
68 MODE_H_ILLEGAL, /* mode has illegal horizontal timings */
69 MODE_V_ILLEGAL, /* mode has illegal horizontal timings */
70 MODE_BAD_WIDTH, /* requires an unsupported linepitch */
71 MODE_NOMODE, /* no mode with a matching name */
72 MODE_NO_INTERLACE, /* interlaced mode not supported */
73 MODE_NO_DBLESCAN, /* doublescan mode not supported */
74 MODE_NO_VSCAN, /* multiscan mode not supported */
75 MODE_MEM, /* insufficient video memory */
76 MODE_VIRTUAL_X, /* mode width too large for specified virtual size */
77 MODE_VIRTUAL_Y, /* mode height too large for specified virtual size */
78 MODE_MEM_VIRT, /* insufficient video memory given virtual size */
79 MODE_NOCLOCK, /* no fixed clock available */
80 MODE_CLOCK_HIGH, /* clock required is too high */
81 MODE_CLOCK_LOW, /* clock required is too low */
82 MODE_CLOCK_RANGE, /* clock/mode isn't in a ClockRange */
83 MODE_BAD_HVALUE, /* horizontal timing was out of range */
84 MODE_BAD_VVALUE, /* vertical timing was out of range */
85 MODE_BAD_VSCAN, /* VScan value out of range */
86 MODE_HSYNC_NARROW, /* horizontal sync too narrow */
87 MODE_HSYNC_WIDE, /* horizontal sync too wide */
88 MODE_HBLANK_NARROW, /* horizontal blanking too narrow */
89 MODE_HBLANK_WIDE, /* horizontal blanking too wide */
90 MODE_VSYNC_NARROW, /* vertical sync too narrow */
91 MODE_VSYNC_WIDE, /* vertical sync too wide */
92 MODE_VBLANK_NARROW, /* vertical blanking too narrow */
93 MODE_VBLANK_WIDE, /* vertical blanking too wide */
94 MODE_PANEL, /* exceeds panel dimensions */
95 MODE_INTERLACE_WIDTH, /* width too large for interlaced mode */
96 MODE_ONE_WIDTH, /* only one width is supported */
97 MODE_ONE_HEIGHT, /* only one height is supported */
98 MODE_ONE_SIZE, /* only one resolution is supported */
99 MODE_NO_REDUCED, /* monitor doesn't accept reduced blanking */
100 MODE_UNVERIFIED = -3, /* mode needs to reverified */
101 MODE_BAD = -2, /* unspecified reason */
102 MODE_ERROR = -1 /* error condition */
105 #define DRM_MODE_TYPE_CLOCK_CRTC_C (DRM_MODE_TYPE_CLOCK_C | \
106 DRM_MODE_TYPE_CRTC_C)
108 #define DRM_MODE(nm, t, c, hd, hss, hse, ht, hsk, vd, vss, vse, vt, vs, f) \
109 .name = nm, .status = 0, .type = (t), .clock = (c), \
110 .hdisplay = (hd), .hsync_start = (hss), .hsync_end = (hse), \
111 .htotal = (ht), .hskew = (hsk), .vdisplay = (vd), \
112 .vsync_start = (vss), .vsync_end = (vse), .vtotal = (vt), \
113 .vscan = (vs), .flags = (f), .vrefresh = 0
115 #define CRTC_INTERLACE_HALVE_V 0x1 /* halve V values for interlacing */
117 struct drm_display_mode {
119 struct list_head head;
120 struct drm_mode_object base;
122 char name[DRM_DISPLAY_MODE_LEN];
124 enum drm_mode_status status;
127 /* Proposed mode values */
128 int clock; /* in kHz */
141 /* Addressable image size (may be 0 for projectors, etc.) */
145 /* Actual mode we give to hw */
149 int crtc_hblank_start;
151 int crtc_hsync_start;
156 int crtc_vblank_start;
158 int crtc_vsync_start;
164 /* Driver private mode info */
169 int vrefresh; /* in Hz */
170 int hsync; /* in kHz */
173 enum drm_connector_status {
174 connector_status_connected = 1,
175 connector_status_disconnected = 2,
176 connector_status_unknown = 3,
179 enum subpixel_order {
181 SubPixelHorizontalRGB,
182 SubPixelHorizontalBGR,
188 #define DRM_COLOR_FORMAT_RGB444 (1<<0)
189 #define DRM_COLOR_FORMAT_YCRCB444 (1<<1)
190 #define DRM_COLOR_FORMAT_YCRCB422 (1<<2)
192 * Describes a given display (e.g. CRT or flat panel) and its limitations.
194 struct drm_display_info {
195 char name[DRM_DISPLAY_INFO_LEN];
198 unsigned int width_mm;
199 unsigned int height_mm;
201 /* Clock limits FIXME: storage format */
202 unsigned int min_vfreq, max_vfreq;
203 unsigned int min_hfreq, max_hfreq;
204 unsigned int pixel_clock;
207 enum subpixel_order subpixel_order;
212 char *raw_edid; /* if any */
215 struct drm_framebuffer_funcs {
216 void (*destroy)(struct drm_framebuffer *framebuffer);
217 int (*create_handle)(struct drm_framebuffer *fb,
218 struct drm_file *file_priv,
219 unsigned int *handle);
221 * Optinal callback for the dirty fb ioctl.
223 * Userspace can notify the driver via this callback
224 * that a area of the framebuffer has changed and should
225 * be flushed to the display hardware.
227 * See documentation in drm_mode.h for the struct
228 * drm_mode_fb_dirty_cmd for more information as all
229 * the semantics and arguments have a one to one mapping
232 int (*dirty)(struct drm_framebuffer *framebuffer,
233 struct drm_file *file_priv, unsigned flags,
234 unsigned color, struct drm_clip_rect *clips,
238 struct drm_framebuffer {
239 struct drm_device *dev;
240 struct list_head head;
241 struct drm_mode_object base;
242 const struct drm_framebuffer_funcs *funcs;
243 unsigned int pitches[4];
244 unsigned int offsets[4];
247 /* depth can be 15 or 16 */
251 uint32_t pixel_format; /* fourcc format */
252 struct list_head filp_head;
253 /* if you are using the helper */
254 void *helper_private;
257 struct drm_property_blob {
258 struct drm_mode_object base;
259 struct list_head head;
261 unsigned char data[];
264 struct drm_property_enum {
266 struct list_head head;
267 char name[DRM_PROP_NAME_LEN];
270 struct drm_property {
271 struct list_head head;
272 struct drm_mode_object base;
274 char name[DRM_PROP_NAME_LEN];
278 struct list_head enum_blob_list;
282 struct drm_connector;
284 struct drm_pending_vblank_event;
289 * drm_crtc_funcs - control CRTCs for a given device
290 * @reset: reset CRTC after state has been invalidate (e.g. resume)
291 * @dpms: control display power levels
292 * @save: save CRTC state
293 * @resore: restore CRTC state
294 * @lock: lock the CRTC
295 * @unlock: unlock the CRTC
296 * @shadow_allocate: allocate shadow pixmap
297 * @shadow_create: create shadow pixmap for rotation support
298 * @shadow_destroy: free shadow pixmap
299 * @mode_fixup: fixup proposed mode
300 * @mode_set: set the desired mode on the CRTC
301 * @gamma_set: specify color ramp for CRTC
302 * @destroy: deinit and free object.
304 * The drm_crtc_funcs structure is the central CRTC management structure
305 * in the DRM. Each CRTC controls one or more connectors (note that the name
306 * CRTC is simply historical, a CRTC may control LVDS, VGA, DVI, TV out, etc.
307 * connectors, not just CRTs).
309 * Each driver is responsible for filling out this structure at startup time,
310 * in addition to providing other modesetting features, like i2c and DDC
313 struct drm_crtc_funcs {
314 /* Save CRTC state */
315 void (*save)(struct drm_crtc *crtc); /* suspend? */
316 /* Restore CRTC state */
317 void (*restore)(struct drm_crtc *crtc); /* resume? */
318 /* Reset CRTC state */
319 void (*reset)(struct drm_crtc *crtc);
321 /* cursor controls */
322 int (*cursor_set)(struct drm_crtc *crtc, struct drm_file *file_priv,
323 uint32_t handle, uint32_t width, uint32_t height);
324 int (*cursor_move)(struct drm_crtc *crtc, int x, int y);
326 /* Set gamma on the CRTC */
327 void (*gamma_set)(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b,
328 uint32_t start, uint32_t size);
329 /* Object destroy routine */
330 void (*destroy)(struct drm_crtc *crtc);
332 int (*set_config)(struct drm_mode_set *set);
335 * Flip to the given framebuffer. This implements the page
336 * flip ioctl described in drm_mode.h, specifically, the
337 * implementation must return immediately and block all
338 * rendering to the current fb until the flip has completed.
339 * If userspace set the event flag in the ioctl, the event
340 * argument will point to an event to send back when the flip
341 * completes, otherwise it will be NULL.
343 int (*page_flip)(struct drm_crtc *crtc,
344 struct drm_framebuffer *fb,
345 struct drm_pending_vblank_event *event);
349 * drm_crtc - central CRTC control structure
350 * @dev: parent DRM device
351 * @head: list management
352 * @base: base KMS object for ID tracking etc.
353 * @enabled: is this CRTC enabled?
354 * @mode: current mode timings
355 * @hwmode: mode timings as programmed to hw regs
356 * @x: x position on screen
357 * @y: y position on screen
358 * @funcs: CRTC control functions
359 * @gamma_size: size of gamma ramp
360 * @gamma_store: gamma ramp values
361 * @framedur_ns: precise frame timing
362 * @framedur_ns: precise line timing
363 * @pixeldur_ns: precise pixel timing
364 * @helper_private: mid-layer private data
366 * Each CRTC may have one or more connectors associated with it. This structure
367 * allows the CRTC to be controlled.
370 struct drm_device *dev;
371 struct list_head head;
373 struct drm_mode_object base;
375 /* framebuffer the connector is currently bound to */
376 struct drm_framebuffer *fb;
380 /* Requested mode from modesetting. */
381 struct drm_display_mode mode;
383 /* Programmed mode in hw, after adjustments for encoders,
384 * crtc, panel scaling etc. Needed for timestamping etc.
386 struct drm_display_mode hwmode;
389 const struct drm_crtc_funcs *funcs;
391 /* CRTC gamma size for reporting to userspace */
393 uint16_t *gamma_store;
395 /* Constants needed for precise vblank and swap timestamping. */
396 s64 framedur_ns, linedur_ns, pixeldur_ns;
398 /* if you are using the helper */
399 void *helper_private;
404 * drm_connector_funcs - control connectors on a given device
405 * @dpms: set power state (see drm_crtc_funcs above)
406 * @save: save connector state
407 * @restore: restore connector state
408 * @reset: reset connector after state has been invalidate (e.g. resume)
409 * @mode_valid: is this mode valid on the given connector?
410 * @mode_fixup: try to fixup proposed mode for this connector
411 * @mode_set: set this mode
412 * @detect: is this connector active?
413 * @get_modes: get mode list for this connector
414 * @set_property: property for this connector may need update
415 * @destroy: make object go away
416 * @force: notify the driver the connector is forced on
418 * Each CRTC may have one or more connectors attached to it. The functions
419 * below allow the core DRM code to control connectors, enumerate available modes,
422 struct drm_connector_funcs {
423 void (*dpms)(struct drm_connector *connector, int mode);
424 void (*save)(struct drm_connector *connector);
425 void (*restore)(struct drm_connector *connector);
426 void (*reset)(struct drm_connector *connector);
428 /* Check to see if anything is attached to the connector.
429 * @force is set to false whilst polling, true when checking the
430 * connector due to user request. @force can be used by the driver
431 * to avoid expensive, destructive operations during automated
434 enum drm_connector_status (*detect)(struct drm_connector *connector,
436 int (*fill_modes)(struct drm_connector *connector, uint32_t max_width, uint32_t max_height);
437 int (*set_property)(struct drm_connector *connector, struct drm_property *property,
439 void (*destroy)(struct drm_connector *connector);
440 void (*force)(struct drm_connector *connector);
444 * drm_encoder_funcs - encoder controls
445 * @reset: reset state (e.g. at init or resume time)
446 * @destroy: cleanup and free associated data
448 * Encoders sit between CRTCs and connectors.
450 struct drm_encoder_funcs {
451 void (*reset)(struct drm_encoder *encoder);
452 void (*destroy)(struct drm_encoder *encoder);
455 #define DRM_CONNECTOR_MAX_UMODES 16
456 #define DRM_CONNECTOR_MAX_PROPERTY 16
457 #define DRM_CONNECTOR_LEN 32
458 #define DRM_CONNECTOR_MAX_ENCODER 3
461 * drm_encoder - central DRM encoder structure
462 * @dev: parent DRM device
463 * @head: list management
464 * @base: base KMS object
465 * @encoder_type: one of the %DRM_MODE_ENCODER_<foo> types in drm_mode.h
466 * @possible_crtcs: bitmask of potential CRTC bindings
467 * @possible_clones: bitmask of potential sibling encoders for cloning
468 * @crtc: currently bound CRTC
469 * @funcs: control functions
470 * @helper_private: mid-layer private data
472 * CRTCs drive pixels to encoders, which convert them into signals
473 * appropriate for a given connector or set of connectors.
476 struct drm_device *dev;
477 struct list_head head;
479 struct drm_mode_object base;
481 uint32_t possible_crtcs;
482 uint32_t possible_clones;
484 struct drm_crtc *crtc;
485 const struct drm_encoder_funcs *funcs;
486 void *helper_private;
489 enum drm_connector_force {
490 DRM_FORCE_UNSPECIFIED,
492 DRM_FORCE_ON, /* force on analog part normally */
493 DRM_FORCE_ON_DIGITAL, /* for DVI-I use digital connector */
496 /* should we poll this connector for connects and disconnects */
497 /* hot plug detectable */
498 #define DRM_CONNECTOR_POLL_HPD (1 << 0)
499 /* poll for connections */
500 #define DRM_CONNECTOR_POLL_CONNECT (1 << 1)
501 /* can cleanly poll for disconnections without flickering the screen */
502 /* DACs should rarely do this without a lot of testing */
503 #define DRM_CONNECTOR_POLL_DISCONNECT (1 << 2)
505 #define MAX_ELD_BYTES 128
508 * drm_connector - central DRM connector control structure
509 * @dev: parent DRM device
510 * @kdev: kernel device for sysfs attributes
511 * @attr: sysfs attributes
512 * @head: list management
513 * @base: base KMS object
514 * @connector_type: one of the %DRM_MODE_CONNECTOR_<foo> types from drm_mode.h
515 * @connector_type_id: index into connector type enum
516 * @interlace_allowed: can this connector handle interlaced modes?
517 * @doublescan_allowed: can this connector handle doublescan?
518 * @modes: modes available on this connector (from fill_modes() + user)
519 * @status: one of the drm_connector_status enums (connected, not, or unknown)
520 * @probed_modes: list of modes derived directly from the display
521 * @display_info: information about attached display (e.g. from EDID)
522 * @funcs: connector control functions
523 * @user_modes: user added mode list
524 * @edid_blob_ptr: DRM property containing EDID if present
525 * @property_ids: property tracking for this connector
526 * @property_values: value pointers or data for properties
527 * @polled: a %DRM_CONNECTOR_POLL_<foo> value for core driven polling
528 * @dpms: current dpms state
529 * @helper_private: mid-layer private data
530 * @force: a %DRM_FORCE_<foo> state for forced mode sets
531 * @encoder_ids: valid encoders for this connector
532 * @encoder: encoder driving this connector, if any
533 * @bridge: bridge connected to this connector
534 * @eld: EDID-like data, if present
535 * @dvi_dual: dual link DVI, if found
536 * @max_tmds_clock: max clock rate, if found
537 * @latency_present: AV delay info from ELD, if found
538 * @video_latency: video latency info from ELD, if found
539 * @audio_latency: audio latency info from ELD, if found
540 * @null_edid_counter: track sinks that give us all zeros for the EDID
542 * Each connector may be connected to one or more CRTCs, or may be clonable by
543 * another connector if they can share a CRTC. Each connector also has a specific
544 * position in the broader display (referred to as a 'screen' though it could
545 * span multiple monitors).
547 struct drm_connector {
548 struct drm_device *dev;
550 struct device_attribute *attr;
551 struct list_head head;
553 struct drm_mode_object base;
556 int connector_type_id;
557 bool interlace_allowed;
558 bool doublescan_allowed;
559 struct list_head modes; /* list of modes on this connector */
561 enum drm_connector_status status;
563 /* these are modes added by probing with DDC or the BIOS */
564 struct list_head probed_modes;
566 struct drm_display_info display_info;
567 const struct drm_connector_funcs *funcs;
569 struct list_head user_modes;
570 struct drm_property_blob *edid_blob_ptr;
571 u32 property_ids[DRM_CONNECTOR_MAX_PROPERTY];
572 uint64_t property_values[DRM_CONNECTOR_MAX_PROPERTY];
574 uint8_t polled; /* DRM_CONNECTOR_POLL_* */
576 /* requested DPMS state */
579 void *helper_private;
581 /* forced on connector */
582 enum drm_connector_force force;
583 uint32_t encoder_ids[DRM_CONNECTOR_MAX_ENCODER];
584 struct drm_encoder *encoder; /* currently active encoder */
585 struct drm_bridge *bridge; /* currently active bridge */
588 uint8_t eld[MAX_ELD_BYTES];
590 int max_tmds_clock; /* in MHz */
591 bool latency_present[2];
592 int video_latency[2]; /* [0]: progressive, [1]: interlaced */
593 int audio_latency[2];
594 int null_edid_counter; /* needed to workaround some HW bugs where we get all 0s */
598 * drm_plane_funcs - driver plane control functions
599 * @update_plane: update the plane configuration
600 * @disable_plane: shut down the plane
601 * @destroy: clean up plane resources
603 struct drm_plane_funcs {
604 int (*update_plane)(struct drm_plane *plane,
605 struct drm_crtc *crtc, struct drm_framebuffer *fb,
606 int crtc_x, int crtc_y,
607 unsigned int crtc_w, unsigned int crtc_h,
608 uint32_t src_x, uint32_t src_y,
609 uint32_t src_w, uint32_t src_h);
610 int (*disable_plane)(struct drm_plane *plane);
611 void (*destroy)(struct drm_plane *plane);
615 * drm_plane - central DRM plane control structure
616 * @dev: DRM device this plane belongs to
617 * @head: for list management
618 * @base: base mode object
619 * @possible_crtcs: pipes this plane can be bound to
620 * @format_types: array of formats supported by this plane
621 * @format_count: number of formats supported
622 * @crtc: currently bound CRTC
623 * @fb: currently bound fb
624 * @gamma_size: size of gamma table
625 * @gamma_store: gamma correction table
626 * @enabled: enabled flag
627 * @funcs: helper functions
628 * @helper_private: storage for drver layer
631 struct drm_device *dev;
632 struct list_head head;
634 struct drm_mode_object base;
636 uint32_t possible_crtcs;
637 uint32_t *format_types;
638 uint32_t format_count;
640 struct drm_crtc *crtc;
641 struct drm_framebuffer *fb;
643 /* CRTC gamma size for reporting to userspace */
645 uint16_t *gamma_store;
649 const struct drm_plane_funcs *funcs;
650 void *helper_private;
654 * drm_bridge_funcs - drm_bridge control functions
655 * @destroy: make object go away
657 struct drm_bridge_funcs {
658 void (*destroy)(struct drm_bridge *bridge);
662 * drm_bridge - central DRM bridge control structure
663 * @dev: DRM device this bridge belongs to
664 * @head: list management
665 * @base: base mode object
666 * @crtc: crtc we're currently attached to
667 * @connector_type: the type of connector this bridge can attach to
668 * @funcs: control functions
669 * @helper_private: mid-layer private data
672 struct drm_device *dev;
673 struct list_head head;
675 struct drm_mode_object base;
677 struct drm_crtc *crtc;
681 const struct drm_bridge_funcs *funcs;
682 void *helper_private;
686 * drm_mode_set - new values for a CRTC config change
687 * @head: list management
688 * @fb: framebuffer to use for new config
689 * @crtc: CRTC whose configuration we're about to change
690 * @mode: mode timings to use
691 * @x: position of this CRTC relative to @fb
692 * @y: position of this CRTC relative to @fb
693 * @connectors: array of connectors to drive with this CRTC if possible
694 * @num_connectors: size of @connectors array
696 * Represents a single crtc the connectors that it drives with what mode
697 * and from which framebuffer it scans out from.
699 * This is used to set modes.
701 struct drm_mode_set {
702 struct list_head head;
704 struct drm_framebuffer *fb;
705 struct drm_crtc *crtc;
706 struct drm_display_mode *mode;
711 struct drm_connector **connectors;
712 size_t num_connectors;
716 * struct drm_mode_config_funcs - basic driver provided mode setting functions
717 * @fb_create: create a new framebuffer object
718 * @output_poll_changed: function to handle output configuration changes
720 * Some global (i.e. not per-CRTC, connector, etc) mode setting functions that
723 struct drm_mode_config_funcs {
724 struct drm_framebuffer *(*fb_create)(struct drm_device *dev,
725 struct drm_file *file_priv,
726 struct drm_mode_fb_cmd2 *mode_cmd);
727 void (*output_poll_changed)(struct drm_device *dev);
731 * drm_mode_group - group of mode setting resources for potential sub-grouping
732 * @num_crtcs: CRTC count
733 * @num_encoders: encoder count
734 * @num_connectors: connector count
735 * @id_list: list of KMS object IDs in this group
737 * Currently this simply tracks the global mode setting state. But in the
738 * future it could allow groups of objects to be set aside into independent
739 * control groups for use by different user level processes (e.g. two X servers
740 * running simultaneously on different heads, each with their own mode
741 * configuration and freedom of mode setting).
743 struct drm_mode_group {
745 uint32_t num_encoders;
746 uint32_t num_connectors;
747 uint32_t num_bridges;
749 /* list of object IDs for this group */
754 * drm_mode_config - Mode configuration control structure
755 * @mutex: mutex protecting KMS related lists and structures
756 * @idr_mutex: mutex for KMS ID allocation and management
757 * @crtc_idr: main KMS ID tracking object
758 * @num_fb: number of fbs available
759 * @fb_list: list of framebuffers available
760 * @num_connector: number of connectors on this device
761 * @connector_list: list of connector objects
762 * @num_bridge: number of bridges on this device
763 * @bridge_list: list of bridge objects
764 * @num_encoder: number of encoders on this device
765 * @encoder_list: list of encoder objects
766 * @num_crtc: number of CRTCs on this device
767 * @crtc_list: list of CRTC objects
768 * @min_width: minimum pixel width on this device
769 * @min_height: minimum pixel height on this device
770 * @max_width: maximum pixel width on this device
771 * @max_height: maximum pixel height on this device
772 * @funcs: core driver provided mode setting functions
773 * @fb_base: base address of the framebuffer
774 * @poll_enabled: track polling status for this device
775 * @output_poll_work: delayed work for polling in process context
776 * @*_property: core property tracking
778 * Core mode resource tracking structure. All CRTC, encoders, and connectors
779 * enumerated by the driver are added here, as are global properties. Some
780 * global restrictions are also here, e.g. dimension restrictions.
782 struct drm_mode_config {
783 struct mutex mutex; /* protects configuration (mode lists etc.) */
784 struct mutex idr_mutex; /* for IDR management */
785 struct idr crtc_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */
786 /* this is limited to one for now */
788 struct list_head fb_list;
790 struct list_head connector_list;
792 struct list_head bridge_list;
794 struct list_head encoder_list;
796 struct list_head plane_list;
799 struct list_head crtc_list;
801 struct list_head property_list;
803 int min_width, min_height;
804 int max_width, max_height;
805 struct drm_mode_config_funcs *funcs;
806 resource_size_t fb_base;
808 /* output poll support */
810 struct delayed_work output_poll_work;
812 /* pointers to standard properties */
813 struct list_head property_blob_list;
814 struct drm_property *edid_property;
815 struct drm_property *dpms_property;
817 /* DVI-I properties */
818 struct drm_property *dvi_i_subconnector_property;
819 struct drm_property *dvi_i_select_subconnector_property;
822 struct drm_property *tv_subconnector_property;
823 struct drm_property *tv_select_subconnector_property;
824 struct drm_property *tv_mode_property;
825 struct drm_property *tv_left_margin_property;
826 struct drm_property *tv_right_margin_property;
827 struct drm_property *tv_top_margin_property;
828 struct drm_property *tv_bottom_margin_property;
829 struct drm_property *tv_brightness_property;
830 struct drm_property *tv_contrast_property;
831 struct drm_property *tv_flicker_reduction_property;
832 struct drm_property *tv_overscan_property;
833 struct drm_property *tv_saturation_property;
834 struct drm_property *tv_hue_property;
836 /* Optional properties */
837 struct drm_property *scaling_mode_property;
838 struct drm_property *dithering_mode_property;
839 struct drm_property *dirty_info_property;
841 /* dumb ioctl parameters */
842 uint32_t preferred_depth, prefer_shadow;
845 #define obj_to_crtc(x) container_of(x, struct drm_crtc, base)
846 #define obj_to_connector(x) container_of(x, struct drm_connector, base)
847 #define obj_to_encoder(x) container_of(x, struct drm_encoder, base)
848 #define obj_to_mode(x) container_of(x, struct drm_display_mode, base)
849 #define obj_to_fb(x) container_of(x, struct drm_framebuffer, base)
850 #define obj_to_property(x) container_of(x, struct drm_property, base)
851 #define obj_to_blob(x) container_of(x, struct drm_property_blob, base)
852 #define obj_to_plane(x) container_of(x, struct drm_plane, base)
854 struct drm_prop_enum_list {
859 extern int drm_crtc_init(struct drm_device *dev,
860 struct drm_crtc *crtc,
861 const struct drm_crtc_funcs *funcs);
862 extern void drm_crtc_cleanup(struct drm_crtc *crtc);
864 extern int drm_connector_init(struct drm_device *dev,
865 struct drm_connector *connector,
866 const struct drm_connector_funcs *funcs,
869 extern void drm_connector_cleanup(struct drm_connector *connector);
870 /* helper to unplug all connectors from sysfs for device */
871 extern void drm_connector_unplug_all(struct drm_device *dev);
873 extern int drm_bridge_init(struct drm_device *dev, struct drm_bridge *bridge,
874 const struct drm_bridge_funcs *funcs);
875 extern void drm_bridge_cleanup(struct drm_bridge *bridge);
877 extern int drm_encoder_init(struct drm_device *dev,
878 struct drm_encoder *encoder,
879 const struct drm_encoder_funcs *funcs,
882 extern int drm_plane_init(struct drm_device *dev,
883 struct drm_plane *plane,
884 unsigned long possible_crtcs,
885 const struct drm_plane_funcs *funcs,
886 const uint32_t *formats, uint32_t format_count,
888 extern void drm_plane_cleanup(struct drm_plane *plane);
890 extern void drm_encoder_cleanup(struct drm_encoder *encoder);
892 extern char *drm_get_connector_name(struct drm_connector *connector);
893 extern char *drm_get_dpms_name(int val);
894 extern char *drm_get_dvi_i_subconnector_name(int val);
895 extern char *drm_get_dvi_i_select_name(int val);
896 extern char *drm_get_tv_subconnector_name(int val);
897 extern char *drm_get_tv_select_name(int val);
898 extern void drm_fb_release(struct drm_file *file_priv);
899 extern int drm_mode_group_init_legacy_group(struct drm_device *dev, struct drm_mode_group *group);
900 extern struct edid *drm_get_edid(struct drm_connector *connector,
901 struct i2c_adapter *adapter);
902 extern int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid);
903 extern void drm_mode_probed_add(struct drm_connector *connector, struct drm_display_mode *mode);
904 extern void drm_mode_remove(struct drm_connector *connector, struct drm_display_mode *mode);
905 extern void drm_mode_copy(struct drm_display_mode *dst, const struct drm_display_mode *src);
906 extern struct drm_display_mode *drm_mode_duplicate(struct drm_device *dev,
907 const struct drm_display_mode *mode);
908 extern void drm_mode_debug_printmodeline(struct drm_display_mode *mode);
909 extern void drm_mode_config_init(struct drm_device *dev);
910 extern void drm_mode_config_reset(struct drm_device *dev);
911 extern void drm_mode_config_cleanup(struct drm_device *dev);
912 extern void drm_mode_set_name(struct drm_display_mode *mode);
913 extern bool drm_mode_equal(const struct drm_display_mode *mode1, const struct drm_display_mode *mode2);
914 extern int drm_mode_width(struct drm_display_mode *mode);
915 extern int drm_mode_height(struct drm_display_mode *mode);
917 /* for us by fb module */
918 extern int drm_mode_attachmode_crtc(struct drm_device *dev,
919 struct drm_crtc *crtc,
920 const struct drm_display_mode *mode);
921 extern int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode);
923 extern struct drm_display_mode *drm_mode_create(struct drm_device *dev);
924 extern void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode);
925 extern void drm_mode_list_concat(struct list_head *head,
926 struct list_head *new);
927 extern void drm_mode_validate_size(struct drm_device *dev,
928 struct list_head *mode_list,
929 int maxX, int maxY, int maxPitch);
930 extern void drm_mode_prune_invalid(struct drm_device *dev,
931 struct list_head *mode_list, bool verbose);
932 extern void drm_mode_sort(struct list_head *mode_list);
933 extern int drm_mode_hsync(const struct drm_display_mode *mode);
934 extern int drm_mode_vrefresh(const struct drm_display_mode *mode);
935 extern void drm_mode_set_crtcinfo(struct drm_display_mode *p,
937 extern void drm_mode_connector_list_update(struct drm_connector *connector);
938 extern int drm_mode_connector_update_edid_property(struct drm_connector *connector,
940 extern int drm_connector_property_set_value(struct drm_connector *connector,
941 struct drm_property *property,
943 extern int drm_connector_property_get_value(struct drm_connector *connector,
944 struct drm_property *property,
946 extern struct drm_display_mode *drm_crtc_mode_create(struct drm_device *dev);
947 extern void drm_framebuffer_set_object(struct drm_device *dev,
948 unsigned long handle);
949 extern int drm_framebuffer_init(struct drm_device *dev,
950 struct drm_framebuffer *fb,
951 const struct drm_framebuffer_funcs *funcs);
952 extern void drm_framebuffer_cleanup(struct drm_framebuffer *fb);
953 extern int drmfb_probe(struct drm_device *dev, struct drm_crtc *crtc);
954 extern int drmfb_remove(struct drm_device *dev, struct drm_framebuffer *fb);
955 extern void drm_crtc_probe_connector_modes(struct drm_device *dev, int maxX, int maxY);
956 extern bool drm_crtc_in_use(struct drm_crtc *crtc);
958 extern void drm_connector_attach_property(struct drm_connector *connector,
959 struct drm_property *property, uint64_t init_val);
960 extern struct drm_property *drm_property_create(struct drm_device *dev, int flags,
961 const char *name, int num_values);
962 extern struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags,
964 const struct drm_prop_enum_list *props,
966 struct drm_property *drm_property_create_range(struct drm_device *dev, int flags,
968 uint64_t min, uint64_t max);
969 extern void drm_property_destroy(struct drm_device *dev, struct drm_property *property);
970 extern int drm_property_add_enum(struct drm_property *property, int index,
971 uint64_t value, const char *name);
972 extern int drm_mode_create_dvi_i_properties(struct drm_device *dev);
973 extern int drm_mode_create_tv_properties(struct drm_device *dev, int num_formats,
975 extern int drm_mode_create_scaling_mode_property(struct drm_device *dev);
976 extern int drm_mode_create_dithering_property(struct drm_device *dev);
977 extern int drm_mode_create_dirty_info_property(struct drm_device *dev);
978 extern char *drm_get_encoder_name(struct drm_encoder *encoder);
980 extern int drm_mode_connector_attach_encoder(struct drm_connector *connector,
981 struct drm_encoder *encoder);
982 extern void drm_mode_connector_detach_encoder(struct drm_connector *connector,
983 struct drm_encoder *encoder);
984 extern int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
986 extern struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
987 uint32_t id, uint32_t type);
989 extern int drm_mode_getresources(struct drm_device *dev,
990 void *data, struct drm_file *file_priv);
991 extern int drm_mode_getplane_res(struct drm_device *dev, void *data,
992 struct drm_file *file_priv);
993 extern int drm_mode_getcrtc(struct drm_device *dev,
994 void *data, struct drm_file *file_priv);
995 extern int drm_mode_getconnector(struct drm_device *dev,
996 void *data, struct drm_file *file_priv);
997 extern int drm_mode_setcrtc(struct drm_device *dev,
998 void *data, struct drm_file *file_priv);
999 extern int drm_mode_getplane(struct drm_device *dev,
1000 void *data, struct drm_file *file_priv);
1001 extern int drm_mode_setplane(struct drm_device *dev,
1002 void *data, struct drm_file *file_priv);
1003 extern int drm_mode_cursor_ioctl(struct drm_device *dev,
1004 void *data, struct drm_file *file_priv);
1005 extern int drm_mode_addfb(struct drm_device *dev,
1006 void *data, struct drm_file *file_priv);
1007 extern int drm_mode_addfb2(struct drm_device *dev,
1008 void *data, struct drm_file *file_priv);
1009 extern uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth);
1010 extern int drm_mode_rmfb(struct drm_device *dev,
1011 void *data, struct drm_file *file_priv);
1012 extern int drm_mode_getfb(struct drm_device *dev,
1013 void *data, struct drm_file *file_priv);
1014 extern int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
1015 void *data, struct drm_file *file_priv);
1016 extern int drm_mode_addmode_ioctl(struct drm_device *dev,
1017 void *data, struct drm_file *file_priv);
1018 extern int drm_mode_rmmode_ioctl(struct drm_device *dev,
1019 void *data, struct drm_file *file_priv);
1020 extern int drm_mode_attachmode_ioctl(struct drm_device *dev,
1021 void *data, struct drm_file *file_priv);
1022 extern int drm_mode_detachmode_ioctl(struct drm_device *dev,
1023 void *data, struct drm_file *file_priv);
1025 extern int drm_mode_getproperty_ioctl(struct drm_device *dev,
1026 void *data, struct drm_file *file_priv);
1027 extern int drm_mode_getblob_ioctl(struct drm_device *dev,
1028 void *data, struct drm_file *file_priv);
1029 extern int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
1030 void *data, struct drm_file *file_priv);
1031 extern int drm_mode_hotplug_ioctl(struct drm_device *dev,
1032 void *data, struct drm_file *file_priv);
1033 extern int drm_mode_replacefb(struct drm_device *dev,
1034 void *data, struct drm_file *file_priv);
1035 extern int drm_mode_getencoder(struct drm_device *dev,
1036 void *data, struct drm_file *file_priv);
1037 extern int drm_mode_gamma_get_ioctl(struct drm_device *dev,
1038 void *data, struct drm_file *file_priv);
1039 extern int drm_mode_gamma_set_ioctl(struct drm_device *dev,
1040 void *data, struct drm_file *file_priv);
1041 extern u8 *drm_find_cea_extension(struct edid *edid);
1042 extern u8 drm_match_cea_mode(struct drm_display_mode *to_match);
1043 extern bool drm_detect_hdmi_monitor(struct edid *edid);
1044 extern bool drm_detect_monitor_audio(struct edid *edid);
1045 extern int drm_mode_page_flip_ioctl(struct drm_device *dev,
1046 void *data, struct drm_file *file_priv);
1047 extern struct drm_display_mode *drm_cvt_mode(struct drm_device *dev,
1048 int hdisplay, int vdisplay, int vrefresh,
1049 bool reduced, bool interlaced, bool margins);
1050 extern struct drm_display_mode *drm_gtf_mode(struct drm_device *dev,
1051 int hdisplay, int vdisplay, int vrefresh,
1052 bool interlaced, int margins);
1053 extern struct drm_display_mode *drm_gtf_mode_complex(struct drm_device *dev,
1054 int hdisplay, int vdisplay, int vrefresh,
1055 bool interlaced, int margins, int GTF_M,
1056 int GTF_2C, int GTF_K, int GTF_2J);
1057 extern int drm_add_modes_noedid(struct drm_connector *connector,
1058 int hdisplay, int vdisplay);
1060 extern int drm_edid_header_is_valid(const u8 *raw_edid);
1061 extern bool drm_edid_block_valid(u8 *raw_edid);
1062 extern bool drm_edid_is_valid(struct edid *edid);
1063 struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
1064 int hsize, int vsize, int fresh);
1066 extern int drm_mode_create_dumb_ioctl(struct drm_device *dev,
1067 void *data, struct drm_file *file_priv);
1068 extern int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
1069 void *data, struct drm_file *file_priv);
1070 extern int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
1071 void *data, struct drm_file *file_priv);
1073 extern void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
1075 #endif /* __DRM_CRTC_H__ */