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;
39 struct drm_object_properties;
42 #define DRM_MODE_OBJECT_CRTC 0xcccccccc
43 #define DRM_MODE_OBJECT_CONNECTOR 0xc0c0c0c0
44 #define DRM_MODE_OBJECT_ENCODER 0xe0e0e0e0
45 #define DRM_MODE_OBJECT_MODE 0xdededede
46 #define DRM_MODE_OBJECT_PROPERTY 0xb0b0b0b0
47 #define DRM_MODE_OBJECT_FB 0xfbfbfbfb
48 #define DRM_MODE_OBJECT_BLOB 0xbbbbbbbb
49 #define DRM_MODE_OBJECT_PLANE 0xeeeeeeee
51 struct drm_mode_object {
54 struct drm_object_properties *properties;
57 #define DRM_OBJECT_MAX_PROPERTY 24
58 struct drm_object_properties {
60 uint32_t ids[DRM_OBJECT_MAX_PROPERTY];
61 uint64_t values[DRM_OBJECT_MAX_PROPERTY];
65 * Note on terminology: here, for brevity and convenience, we refer to connector
66 * control chips as 'CRTCs'. They can control any type of connector, VGA, LVDS,
67 * DVI, etc. And 'screen' refers to the whole of the visible display, which
68 * may span multiple monitors (and therefore multiple CRTC and connector
72 enum drm_mode_status {
73 MODE_OK = 0, /* Mode OK */
74 MODE_HSYNC, /* hsync out of range */
75 MODE_VSYNC, /* vsync out of range */
76 MODE_H_ILLEGAL, /* mode has illegal horizontal timings */
77 MODE_V_ILLEGAL, /* mode has illegal horizontal timings */
78 MODE_BAD_WIDTH, /* requires an unsupported linepitch */
79 MODE_NOMODE, /* no mode with a matching name */
80 MODE_NO_INTERLACE, /* interlaced mode not supported */
81 MODE_NO_DBLESCAN, /* doublescan mode not supported */
82 MODE_NO_VSCAN, /* multiscan mode not supported */
83 MODE_MEM, /* insufficient video memory */
84 MODE_VIRTUAL_X, /* mode width too large for specified virtual size */
85 MODE_VIRTUAL_Y, /* mode height too large for specified virtual size */
86 MODE_MEM_VIRT, /* insufficient video memory given virtual size */
87 MODE_NOCLOCK, /* no fixed clock available */
88 MODE_CLOCK_HIGH, /* clock required is too high */
89 MODE_CLOCK_LOW, /* clock required is too low */
90 MODE_CLOCK_RANGE, /* clock/mode isn't in a ClockRange */
91 MODE_BAD_HVALUE, /* horizontal timing was out of range */
92 MODE_BAD_VVALUE, /* vertical timing was out of range */
93 MODE_BAD_VSCAN, /* VScan value out of range */
94 MODE_HSYNC_NARROW, /* horizontal sync too narrow */
95 MODE_HSYNC_WIDE, /* horizontal sync too wide */
96 MODE_HBLANK_NARROW, /* horizontal blanking too narrow */
97 MODE_HBLANK_WIDE, /* horizontal blanking too wide */
98 MODE_VSYNC_NARROW, /* vertical sync too narrow */
99 MODE_VSYNC_WIDE, /* vertical sync too wide */
100 MODE_VBLANK_NARROW, /* vertical blanking too narrow */
101 MODE_VBLANK_WIDE, /* vertical blanking too wide */
102 MODE_PANEL, /* exceeds panel dimensions */
103 MODE_INTERLACE_WIDTH, /* width too large for interlaced mode */
104 MODE_ONE_WIDTH, /* only one width is supported */
105 MODE_ONE_HEIGHT, /* only one height is supported */
106 MODE_ONE_SIZE, /* only one resolution is supported */
107 MODE_NO_REDUCED, /* monitor doesn't accept reduced blanking */
108 MODE_UNVERIFIED = -3, /* mode needs to reverified */
109 MODE_BAD = -2, /* unspecified reason */
110 MODE_ERROR = -1 /* error condition */
113 #define DRM_MODE_TYPE_CLOCK_CRTC_C (DRM_MODE_TYPE_CLOCK_C | \
114 DRM_MODE_TYPE_CRTC_C)
116 #define DRM_MODE(nm, t, c, hd, hss, hse, ht, hsk, vd, vss, vse, vt, vs, f) \
117 .name = nm, .status = 0, .type = (t), .clock = (c), \
118 .hdisplay = (hd), .hsync_start = (hss), .hsync_end = (hse), \
119 .htotal = (ht), .hskew = (hsk), .vdisplay = (vd), \
120 .vsync_start = (vss), .vsync_end = (vse), .vtotal = (vt), \
121 .vscan = (vs), .flags = (f), .vrefresh = 0
123 #define CRTC_INTERLACE_HALVE_V 0x1 /* halve V values for interlacing */
125 struct drm_display_mode {
127 struct list_head head;
128 struct drm_mode_object base;
130 char name[DRM_DISPLAY_MODE_LEN];
132 enum drm_mode_status status;
135 /* Proposed mode values */
136 int clock; /* in kHz */
149 /* Addressable image size (may be 0 for projectors, etc.) */
153 /* Actual mode we give to hw */
157 int crtc_hblank_start;
159 int crtc_hsync_start;
164 int crtc_vblank_start;
166 int crtc_vsync_start;
172 /* Driver private mode info */
177 int vrefresh; /* in Hz */
178 int hsync; /* in kHz */
181 enum drm_connector_status {
182 connector_status_connected = 1,
183 connector_status_disconnected = 2,
184 connector_status_unknown = 3,
187 enum subpixel_order {
189 SubPixelHorizontalRGB,
190 SubPixelHorizontalBGR,
196 #define DRM_COLOR_FORMAT_RGB444 (1<<0)
197 #define DRM_COLOR_FORMAT_YCRCB444 (1<<1)
198 #define DRM_COLOR_FORMAT_YCRCB422 (1<<2)
200 * Describes a given display (e.g. CRT or flat panel) and its limitations.
202 struct drm_display_info {
203 char name[DRM_DISPLAY_INFO_LEN];
206 unsigned int width_mm;
207 unsigned int height_mm;
209 /* Clock limits FIXME: storage format */
210 unsigned int min_vfreq, max_vfreq;
211 unsigned int min_hfreq, max_hfreq;
212 unsigned int pixel_clock;
215 enum subpixel_order subpixel_order;
220 char *raw_edid; /* if any */
223 struct drm_framebuffer_funcs {
224 void (*destroy)(struct drm_framebuffer *framebuffer);
225 int (*create_handle)(struct drm_framebuffer *fb,
226 struct drm_file *file_priv,
227 unsigned int *handle);
229 * Optinal callback for the dirty fb ioctl.
231 * Userspace can notify the driver via this callback
232 * that a area of the framebuffer has changed and should
233 * be flushed to the display hardware.
235 * See documentation in drm_mode.h for the struct
236 * drm_mode_fb_dirty_cmd for more information as all
237 * the semantics and arguments have a one to one mapping
240 int (*dirty)(struct drm_framebuffer *framebuffer,
241 struct drm_file *file_priv, unsigned flags,
242 unsigned color, struct drm_clip_rect *clips,
246 struct drm_framebuffer {
247 struct drm_device *dev;
248 struct list_head head;
249 struct drm_mode_object base;
250 const struct drm_framebuffer_funcs *funcs;
251 unsigned int pitches[4];
252 unsigned int offsets[4];
255 /* depth can be 15 or 16 */
259 uint32_t pixel_format; /* fourcc format */
260 struct list_head filp_head;
261 /* if you are using the helper */
262 void *helper_private;
265 struct drm_property_blob {
266 struct drm_mode_object base;
267 struct list_head head;
269 unsigned char data[];
272 struct drm_property_enum {
274 struct list_head head;
275 char name[DRM_PROP_NAME_LEN];
278 struct drm_property {
279 struct list_head head;
280 struct drm_mode_object base;
282 char name[DRM_PROP_NAME_LEN];
286 struct list_head enum_blob_list;
290 struct drm_connector;
292 struct drm_pending_vblank_event;
296 * drm_crtc_funcs - control CRTCs for a given device
297 * @save: save CRTC state
298 * @restore: restore CRTC state
299 * @reset: reset CRTC after state has been invalidate (e.g. resume)
300 * @cursor_set: setup the cursor
301 * @cursor_move: move the cursor
302 * @gamma_set: specify color ramp for CRTC
303 * @destroy: deinit and free object
304 * @set_property: called when a property is changed
305 * @set_config: apply a new CRTC configuration
306 * @page_flip: initiate a page flip
308 * The drm_crtc_funcs structure is the central CRTC management structure
309 * in the DRM. Each CRTC controls one or more connectors (note that the name
310 * CRTC is simply historical, a CRTC may control LVDS, VGA, DVI, TV out, etc.
311 * connectors, not just CRTs).
313 * Each driver is responsible for filling out this structure at startup time,
314 * in addition to providing other modesetting features, like i2c and DDC
317 struct drm_crtc_funcs {
318 /* Save CRTC state */
319 void (*save)(struct drm_crtc *crtc); /* suspend? */
320 /* Restore CRTC state */
321 void (*restore)(struct drm_crtc *crtc); /* resume? */
322 /* Reset CRTC state */
323 void (*reset)(struct drm_crtc *crtc);
325 /* cursor controls */
326 int (*cursor_set)(struct drm_crtc *crtc, struct drm_file *file_priv,
327 uint32_t handle, uint32_t width, uint32_t height);
328 int (*cursor_move)(struct drm_crtc *crtc, int x, int y);
330 /* Set gamma on the CRTC */
331 void (*gamma_set)(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b,
332 uint32_t start, uint32_t size);
333 /* Object destroy routine */
334 void (*destroy)(struct drm_crtc *crtc);
336 int (*set_config)(struct drm_mode_set *set);
339 * Flip to the given framebuffer. This implements the page
340 * flip ioctl described in drm_mode.h, specifically, the
341 * implementation must return immediately and block all
342 * rendering to the current fb until the flip has completed.
343 * If userspace set the event flag in the ioctl, the event
344 * argument will point to an event to send back when the flip
345 * completes, otherwise it will be NULL.
347 int (*page_flip)(struct drm_crtc *crtc,
348 struct drm_framebuffer *fb,
349 struct drm_pending_vblank_event *event);
351 int (*set_property)(struct drm_crtc *crtc,
352 struct drm_property *property, uint64_t val);
356 * drm_crtc - central CRTC control structure
357 * @dev: parent DRM device
358 * @head: list management
359 * @base: base KMS object for ID tracking etc.
360 * @enabled: is this CRTC enabled?
361 * @mode: current mode timings
362 * @hwmode: mode timings as programmed to hw regs
363 * @x: x position on screen
364 * @y: y position on screen
365 * @funcs: CRTC control functions
366 * @gamma_size: size of gamma ramp
367 * @gamma_store: gamma ramp values
368 * @framedur_ns: precise frame timing
369 * @framedur_ns: precise line timing
370 * @pixeldur_ns: precise pixel timing
371 * @helper_private: mid-layer private data
372 * @properties: property tracking for this CRTC
374 * Each CRTC may have one or more connectors associated with it. This structure
375 * allows the CRTC to be controlled.
378 struct drm_device *dev;
379 struct list_head head;
381 struct drm_mode_object base;
383 /* framebuffer the connector is currently bound to */
384 struct drm_framebuffer *fb;
388 /* Requested mode from modesetting. */
389 struct drm_display_mode mode;
391 /* Programmed mode in hw, after adjustments for encoders,
392 * crtc, panel scaling etc. Needed for timestamping etc.
394 struct drm_display_mode hwmode;
397 const struct drm_crtc_funcs *funcs;
399 /* CRTC gamma size for reporting to userspace */
401 uint16_t *gamma_store;
403 /* Constants needed for precise vblank and swap timestamping. */
404 s64 framedur_ns, linedur_ns, pixeldur_ns;
406 /* if you are using the helper */
407 void *helper_private;
409 struct drm_object_properties properties;
414 * drm_connector_funcs - control connectors on a given device
415 * @dpms: set power state (see drm_crtc_funcs above)
416 * @save: save connector state
417 * @restore: restore connector state
418 * @reset: reset connector after state has been invalidate (e.g. resume)
419 * @detect: is this connector active?
420 * @fill_modes: fill mode list for this connector
421 * @set_property: property for this connector may need update
422 * @destroy: make object go away
423 * @force: notify the driver the connector is forced on
425 * Each CRTC may have one or more connectors attached to it. The functions
426 * below allow the core DRM code to control connectors, enumerate available modes,
429 struct drm_connector_funcs {
430 void (*dpms)(struct drm_connector *connector, int mode);
431 void (*save)(struct drm_connector *connector);
432 void (*restore)(struct drm_connector *connector);
433 void (*reset)(struct drm_connector *connector);
435 /* Check to see if anything is attached to the connector.
436 * @force is set to false whilst polling, true when checking the
437 * connector due to user request. @force can be used by the driver
438 * to avoid expensive, destructive operations during automated
441 enum drm_connector_status (*detect)(struct drm_connector *connector,
443 int (*fill_modes)(struct drm_connector *connector, uint32_t max_width, uint32_t max_height);
444 int (*set_property)(struct drm_connector *connector, struct drm_property *property,
446 void (*destroy)(struct drm_connector *connector);
447 void (*force)(struct drm_connector *connector);
451 * drm_encoder_funcs - encoder controls
452 * @reset: reset state (e.g. at init or resume time)
453 * @destroy: cleanup and free associated data
455 * Encoders sit between CRTCs and connectors.
457 struct drm_encoder_funcs {
458 void (*reset)(struct drm_encoder *encoder);
459 void (*destroy)(struct drm_encoder *encoder);
462 #define DRM_CONNECTOR_MAX_UMODES 16
463 #define DRM_CONNECTOR_LEN 32
464 #define DRM_CONNECTOR_MAX_ENCODER 3
467 * drm_encoder - central DRM encoder structure
468 * @dev: parent DRM device
469 * @head: list management
470 * @base: base KMS object
471 * @encoder_type: one of the %DRM_MODE_ENCODER_<foo> types in drm_mode.h
472 * @possible_crtcs: bitmask of potential CRTC bindings
473 * @possible_clones: bitmask of potential sibling encoders for cloning
474 * @crtc: currently bound CRTC
475 * @funcs: control functions
476 * @helper_private: mid-layer private data
478 * CRTCs drive pixels to encoders, which convert them into signals
479 * appropriate for a given connector or set of connectors.
482 struct drm_device *dev;
483 struct list_head head;
485 struct drm_mode_object base;
487 uint32_t possible_crtcs;
488 uint32_t possible_clones;
490 struct drm_crtc *crtc;
491 const struct drm_encoder_funcs *funcs;
492 void *helper_private;
495 enum drm_connector_force {
496 DRM_FORCE_UNSPECIFIED,
498 DRM_FORCE_ON, /* force on analog part normally */
499 DRM_FORCE_ON_DIGITAL, /* for DVI-I use digital connector */
502 /* should we poll this connector for connects and disconnects */
503 /* hot plug detectable */
504 #define DRM_CONNECTOR_POLL_HPD (1 << 0)
505 /* poll for connections */
506 #define DRM_CONNECTOR_POLL_CONNECT (1 << 1)
507 /* can cleanly poll for disconnections without flickering the screen */
508 /* DACs should rarely do this without a lot of testing */
509 #define DRM_CONNECTOR_POLL_DISCONNECT (1 << 2)
511 #define MAX_ELD_BYTES 128
514 * drm_connector - central DRM connector control structure
515 * @dev: parent DRM device
516 * @kdev: kernel device for sysfs attributes
517 * @attr: sysfs attributes
518 * @head: list management
519 * @base: base KMS object
520 * @connector_type: one of the %DRM_MODE_CONNECTOR_<foo> types from drm_mode.h
521 * @connector_type_id: index into connector type enum
522 * @interlace_allowed: can this connector handle interlaced modes?
523 * @doublescan_allowed: can this connector handle doublescan?
524 * @modes: modes available on this connector (from fill_modes() + user)
525 * @status: one of the drm_connector_status enums (connected, not, or unknown)
526 * @probed_modes: list of modes derived directly from the display
527 * @display_info: information about attached display (e.g. from EDID)
528 * @funcs: connector control functions
529 * @user_modes: user added mode list
530 * @edid_blob_ptr: DRM property containing EDID if present
531 * @properties: property tracking for this connector
532 * @polled: a %DRM_CONNECTOR_POLL_<foo> value for core driven polling
533 * @dpms: current dpms state
534 * @helper_private: mid-layer private data
535 * @force: a %DRM_FORCE_<foo> state for forced mode sets
536 * @encoder_ids: valid encoders for this connector
537 * @encoder: encoder driving this connector, if any
538 * @eld: EDID-like data, if present
539 * @dvi_dual: dual link DVI, if found
540 * @max_tmds_clock: max clock rate, if found
541 * @latency_present: AV delay info from ELD, if found
542 * @video_latency: video latency info from ELD, if found
543 * @audio_latency: audio latency info from ELD, if found
544 * @null_edid_counter: track sinks that give us all zeros for the EDID
546 * Each connector may be connected to one or more CRTCs, or may be clonable by
547 * another connector if they can share a CRTC. Each connector also has a specific
548 * position in the broader display (referred to as a 'screen' though it could
549 * span multiple monitors).
551 struct drm_connector {
552 struct drm_device *dev;
554 struct device_attribute *attr;
555 struct list_head head;
557 struct drm_mode_object base;
560 int connector_type_id;
561 bool interlace_allowed;
562 bool doublescan_allowed;
563 struct list_head modes; /* list of modes on this connector */
565 enum drm_connector_status status;
567 /* these are modes added by probing with DDC or the BIOS */
568 struct list_head probed_modes;
570 struct drm_display_info display_info;
571 const struct drm_connector_funcs *funcs;
573 struct list_head user_modes;
574 struct drm_property_blob *edid_blob_ptr;
575 struct drm_object_properties properties;
577 uint8_t polled; /* DRM_CONNECTOR_POLL_* */
579 /* requested DPMS state */
582 void *helper_private;
584 /* forced on connector */
585 enum drm_connector_force force;
586 uint32_t encoder_ids[DRM_CONNECTOR_MAX_ENCODER];
587 struct drm_encoder *encoder; /* currently active encoder */
590 uint8_t eld[MAX_ELD_BYTES];
592 int max_tmds_clock; /* in MHz */
593 bool latency_present[2];
594 int video_latency[2]; /* [0]: progressive, [1]: interlaced */
595 int audio_latency[2];
596 int null_edid_counter; /* needed to workaround some HW bugs where we get all 0s */
600 * drm_plane_funcs - driver plane control functions
601 * @update_plane: update the plane configuration
602 * @disable_plane: shut down the plane
603 * @destroy: clean up plane resources
604 * @set_property: called when a property is changed
606 struct drm_plane_funcs {
607 int (*update_plane)(struct drm_plane *plane,
608 struct drm_crtc *crtc, struct drm_framebuffer *fb,
609 int crtc_x, int crtc_y,
610 unsigned int crtc_w, unsigned int crtc_h,
611 uint32_t src_x, uint32_t src_y,
612 uint32_t src_w, uint32_t src_h);
613 int (*disable_plane)(struct drm_plane *plane);
614 void (*destroy)(struct drm_plane *plane);
616 int (*set_property)(struct drm_plane *plane,
617 struct drm_property *property, uint64_t val);
621 * drm_plane - central DRM plane control structure
622 * @dev: DRM device this plane belongs to
623 * @head: for list management
624 * @base: base mode object
625 * @possible_crtcs: pipes this plane can be bound to
626 * @format_types: array of formats supported by this plane
627 * @format_count: number of formats supported
628 * @crtc: currently bound CRTC
629 * @fb: currently bound fb
630 * @gamma_size: size of gamma table
631 * @gamma_store: gamma correction table
632 * @enabled: enabled flag
633 * @funcs: helper functions
634 * @helper_private: storage for drver layer
635 * @properties: property tracking for this plane
638 struct drm_device *dev;
639 struct list_head head;
641 struct drm_mode_object base;
643 uint32_t possible_crtcs;
644 uint32_t *format_types;
645 uint32_t format_count;
647 struct drm_crtc *crtc;
648 struct drm_framebuffer *fb;
650 /* CRTC gamma size for reporting to userspace */
652 uint16_t *gamma_store;
656 const struct drm_plane_funcs *funcs;
657 void *helper_private;
659 struct drm_object_properties properties;
663 * drm_mode_set - new values for a CRTC config change
664 * @head: list management
665 * @fb: framebuffer to use for new config
666 * @crtc: CRTC whose configuration we're about to change
667 * @mode: mode timings to use
668 * @x: position of this CRTC relative to @fb
669 * @y: position of this CRTC relative to @fb
670 * @connectors: array of connectors to drive with this CRTC if possible
671 * @num_connectors: size of @connectors array
673 * Represents a single crtc the connectors that it drives with what mode
674 * and from which framebuffer it scans out from.
676 * This is used to set modes.
678 struct drm_mode_set {
679 struct drm_framebuffer *fb;
680 struct drm_crtc *crtc;
681 struct drm_display_mode *mode;
686 struct drm_connector **connectors;
687 size_t num_connectors;
691 * struct drm_mode_config_funcs - basic driver provided mode setting functions
692 * @fb_create: create a new framebuffer object
693 * @output_poll_changed: function to handle output configuration changes
695 * Some global (i.e. not per-CRTC, connector, etc) mode setting functions that
698 struct drm_mode_config_funcs {
699 struct drm_framebuffer *(*fb_create)(struct drm_device *dev,
700 struct drm_file *file_priv,
701 struct drm_mode_fb_cmd2 *mode_cmd);
702 void (*output_poll_changed)(struct drm_device *dev);
706 * drm_mode_group - group of mode setting resources for potential sub-grouping
707 * @num_crtcs: CRTC count
708 * @num_encoders: encoder count
709 * @num_connectors: connector count
710 * @id_list: list of KMS object IDs in this group
712 * Currently this simply tracks the global mode setting state. But in the
713 * future it could allow groups of objects to be set aside into independent
714 * control groups for use by different user level processes (e.g. two X servers
715 * running simultaneously on different heads, each with their own mode
716 * configuration and freedom of mode setting).
718 struct drm_mode_group {
720 uint32_t num_encoders;
721 uint32_t num_connectors;
723 /* list of object IDs for this group */
728 * drm_mode_config - Mode configuration control structure
729 * @mutex: mutex protecting KMS related lists and structures
730 * @idr_mutex: mutex for KMS ID allocation and management
731 * @crtc_idr: main KMS ID tracking object
732 * @num_fb: number of fbs available
733 * @fb_list: list of framebuffers available
734 * @num_connector: number of connectors on this device
735 * @connector_list: list of connector objects
736 * @num_encoder: number of encoders on this device
737 * @encoder_list: list of encoder objects
738 * @num_crtc: number of CRTCs on this device
739 * @crtc_list: list of CRTC objects
740 * @min_width: minimum pixel width on this device
741 * @min_height: minimum pixel height on this device
742 * @max_width: maximum pixel width on this device
743 * @max_height: maximum pixel height on this device
744 * @funcs: core driver provided mode setting functions
745 * @fb_base: base address of the framebuffer
746 * @poll_enabled: track polling status for this device
747 * @output_poll_work: delayed work for polling in process context
748 * @*_property: core property tracking
750 * Core mode resource tracking structure. All CRTC, encoders, and connectors
751 * enumerated by the driver are added here, as are global properties. Some
752 * global restrictions are also here, e.g. dimension restrictions.
754 struct drm_mode_config {
755 struct mutex mutex; /* protects configuration (mode lists etc.) */
756 struct mutex idr_mutex; /* for IDR management */
757 struct idr crtc_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */
758 /* this is limited to one for now */
760 struct list_head fb_list;
762 struct list_head connector_list;
764 struct list_head encoder_list;
766 struct list_head plane_list;
769 struct list_head crtc_list;
771 struct list_head property_list;
773 int min_width, min_height;
774 int max_width, max_height;
775 const struct drm_mode_config_funcs *funcs;
776 resource_size_t fb_base;
778 /* output poll support */
780 struct delayed_work output_poll_work;
782 /* pointers to standard properties */
783 struct list_head property_blob_list;
784 struct drm_property *edid_property;
785 struct drm_property *dpms_property;
787 /* DVI-I properties */
788 struct drm_property *dvi_i_subconnector_property;
789 struct drm_property *dvi_i_select_subconnector_property;
792 struct drm_property *tv_subconnector_property;
793 struct drm_property *tv_select_subconnector_property;
794 struct drm_property *tv_mode_property;
795 struct drm_property *tv_left_margin_property;
796 struct drm_property *tv_right_margin_property;
797 struct drm_property *tv_top_margin_property;
798 struct drm_property *tv_bottom_margin_property;
799 struct drm_property *tv_brightness_property;
800 struct drm_property *tv_contrast_property;
801 struct drm_property *tv_flicker_reduction_property;
802 struct drm_property *tv_overscan_property;
803 struct drm_property *tv_saturation_property;
804 struct drm_property *tv_hue_property;
806 /* Optional properties */
807 struct drm_property *scaling_mode_property;
808 struct drm_property *dithering_mode_property;
809 struct drm_property *dirty_info_property;
811 /* dumb ioctl parameters */
812 uint32_t preferred_depth, prefer_shadow;
815 #define obj_to_crtc(x) container_of(x, struct drm_crtc, base)
816 #define obj_to_connector(x) container_of(x, struct drm_connector, base)
817 #define obj_to_encoder(x) container_of(x, struct drm_encoder, base)
818 #define obj_to_mode(x) container_of(x, struct drm_display_mode, base)
819 #define obj_to_fb(x) container_of(x, struct drm_framebuffer, base)
820 #define obj_to_property(x) container_of(x, struct drm_property, base)
821 #define obj_to_blob(x) container_of(x, struct drm_property_blob, base)
822 #define obj_to_plane(x) container_of(x, struct drm_plane, base)
824 struct drm_prop_enum_list {
829 extern int drm_crtc_init(struct drm_device *dev,
830 struct drm_crtc *crtc,
831 const struct drm_crtc_funcs *funcs);
832 extern void drm_crtc_cleanup(struct drm_crtc *crtc);
834 extern int drm_connector_init(struct drm_device *dev,
835 struct drm_connector *connector,
836 const struct drm_connector_funcs *funcs,
839 extern void drm_connector_cleanup(struct drm_connector *connector);
840 /* helper to unplug all connectors from sysfs for device */
841 extern void drm_connector_unplug_all(struct drm_device *dev);
843 extern int drm_encoder_init(struct drm_device *dev,
844 struct drm_encoder *encoder,
845 const struct drm_encoder_funcs *funcs,
848 extern int drm_plane_init(struct drm_device *dev,
849 struct drm_plane *plane,
850 unsigned long possible_crtcs,
851 const struct drm_plane_funcs *funcs,
852 const uint32_t *formats, uint32_t format_count,
854 extern void drm_plane_cleanup(struct drm_plane *plane);
856 extern void drm_encoder_cleanup(struct drm_encoder *encoder);
858 extern char *drm_get_connector_name(struct drm_connector *connector);
859 extern char *drm_get_dpms_name(int val);
860 extern char *drm_get_dvi_i_subconnector_name(int val);
861 extern char *drm_get_dvi_i_select_name(int val);
862 extern char *drm_get_tv_subconnector_name(int val);
863 extern char *drm_get_tv_select_name(int val);
864 extern void drm_fb_release(struct drm_file *file_priv);
865 extern int drm_mode_group_init_legacy_group(struct drm_device *dev, struct drm_mode_group *group);
866 extern struct edid *drm_get_edid(struct drm_connector *connector,
867 struct i2c_adapter *adapter);
868 extern int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid);
869 extern void drm_mode_probed_add(struct drm_connector *connector, struct drm_display_mode *mode);
870 extern void drm_mode_remove(struct drm_connector *connector, struct drm_display_mode *mode);
871 extern void drm_mode_copy(struct drm_display_mode *dst, const struct drm_display_mode *src);
872 extern struct drm_display_mode *drm_mode_duplicate(struct drm_device *dev,
873 const struct drm_display_mode *mode);
874 extern void drm_mode_debug_printmodeline(struct drm_display_mode *mode);
875 extern void drm_mode_config_init(struct drm_device *dev);
876 extern void drm_mode_config_reset(struct drm_device *dev);
877 extern void drm_mode_config_cleanup(struct drm_device *dev);
878 extern void drm_mode_set_name(struct drm_display_mode *mode);
879 extern bool drm_mode_equal(struct drm_display_mode *mode1, struct drm_display_mode *mode2);
880 extern int drm_mode_width(struct drm_display_mode *mode);
881 extern int drm_mode_height(struct drm_display_mode *mode);
883 /* for us by fb module */
884 extern int drm_mode_attachmode_crtc(struct drm_device *dev,
885 struct drm_crtc *crtc,
886 const struct drm_display_mode *mode);
887 extern int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode);
889 extern struct drm_display_mode *drm_mode_create(struct drm_device *dev);
890 extern void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode);
891 extern void drm_mode_list_concat(struct list_head *head,
892 struct list_head *new);
893 extern void drm_mode_validate_size(struct drm_device *dev,
894 struct list_head *mode_list,
895 int maxX, int maxY, int maxPitch);
896 extern void drm_mode_prune_invalid(struct drm_device *dev,
897 struct list_head *mode_list, bool verbose);
898 extern void drm_mode_sort(struct list_head *mode_list);
899 extern int drm_mode_hsync(const struct drm_display_mode *mode);
900 extern int drm_mode_vrefresh(const struct drm_display_mode *mode);
901 extern void drm_mode_set_crtcinfo(struct drm_display_mode *p,
903 extern void drm_mode_connector_list_update(struct drm_connector *connector);
904 extern int drm_mode_connector_update_edid_property(struct drm_connector *connector,
906 extern int drm_connector_property_set_value(struct drm_connector *connector,
907 struct drm_property *property,
909 extern int drm_connector_property_get_value(struct drm_connector *connector,
910 struct drm_property *property,
912 extern int drm_object_property_set_value(struct drm_mode_object *obj,
913 struct drm_property *property,
915 extern int drm_object_property_get_value(struct drm_mode_object *obj,
916 struct drm_property *property,
918 extern struct drm_display_mode *drm_crtc_mode_create(struct drm_device *dev);
919 extern void drm_framebuffer_set_object(struct drm_device *dev,
920 unsigned long handle);
921 extern int drm_framebuffer_init(struct drm_device *dev,
922 struct drm_framebuffer *fb,
923 const struct drm_framebuffer_funcs *funcs);
924 extern void drm_framebuffer_cleanup(struct drm_framebuffer *fb);
925 extern int drmfb_probe(struct drm_device *dev, struct drm_crtc *crtc);
926 extern int drmfb_remove(struct drm_device *dev, struct drm_framebuffer *fb);
927 extern void drm_crtc_probe_connector_modes(struct drm_device *dev, int maxX, int maxY);
928 extern bool drm_crtc_in_use(struct drm_crtc *crtc);
930 extern void drm_connector_attach_property(struct drm_connector *connector,
931 struct drm_property *property, uint64_t init_val);
932 extern void drm_object_attach_property(struct drm_mode_object *obj,
933 struct drm_property *property,
935 extern struct drm_property *drm_property_create(struct drm_device *dev, int flags,
936 const char *name, int num_values);
937 extern struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags,
939 const struct drm_prop_enum_list *props,
941 struct drm_property *drm_property_create_bitmask(struct drm_device *dev,
942 int flags, const char *name,
943 const struct drm_prop_enum_list *props,
945 struct drm_property *drm_property_create_range(struct drm_device *dev, int flags,
947 uint64_t min, uint64_t max);
948 extern void drm_property_destroy(struct drm_device *dev, struct drm_property *property);
949 extern int drm_property_add_enum(struct drm_property *property, int index,
950 uint64_t value, const char *name);
951 extern int drm_mode_create_dvi_i_properties(struct drm_device *dev);
952 extern int drm_mode_create_tv_properties(struct drm_device *dev, int num_formats,
954 extern int drm_mode_create_scaling_mode_property(struct drm_device *dev);
955 extern int drm_mode_create_dithering_property(struct drm_device *dev);
956 extern int drm_mode_create_dirty_info_property(struct drm_device *dev);
957 extern char *drm_get_encoder_name(struct drm_encoder *encoder);
959 extern int drm_mode_connector_attach_encoder(struct drm_connector *connector,
960 struct drm_encoder *encoder);
961 extern void drm_mode_connector_detach_encoder(struct drm_connector *connector,
962 struct drm_encoder *encoder);
963 extern int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
965 extern struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
966 uint32_t id, uint32_t type);
968 extern int drm_mode_getresources(struct drm_device *dev,
969 void *data, struct drm_file *file_priv);
970 extern int drm_mode_getplane_res(struct drm_device *dev, void *data,
971 struct drm_file *file_priv);
972 extern int drm_mode_getcrtc(struct drm_device *dev,
973 void *data, struct drm_file *file_priv);
974 extern int drm_mode_getconnector(struct drm_device *dev,
975 void *data, struct drm_file *file_priv);
976 extern int drm_mode_setcrtc(struct drm_device *dev,
977 void *data, struct drm_file *file_priv);
978 extern int drm_mode_getplane(struct drm_device *dev,
979 void *data, struct drm_file *file_priv);
980 extern int drm_mode_setplane(struct drm_device *dev,
981 void *data, struct drm_file *file_priv);
982 extern int drm_mode_cursor_ioctl(struct drm_device *dev,
983 void *data, struct drm_file *file_priv);
984 extern int drm_mode_addfb(struct drm_device *dev,
985 void *data, struct drm_file *file_priv);
986 extern int drm_mode_addfb2(struct drm_device *dev,
987 void *data, struct drm_file *file_priv);
988 extern uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth);
989 extern int drm_mode_rmfb(struct drm_device *dev,
990 void *data, struct drm_file *file_priv);
991 extern int drm_mode_getfb(struct drm_device *dev,
992 void *data, struct drm_file *file_priv);
993 extern int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
994 void *data, struct drm_file *file_priv);
995 extern int drm_mode_addmode_ioctl(struct drm_device *dev,
996 void *data, struct drm_file *file_priv);
997 extern int drm_mode_rmmode_ioctl(struct drm_device *dev,
998 void *data, struct drm_file *file_priv);
999 extern int drm_mode_attachmode_ioctl(struct drm_device *dev,
1000 void *data, struct drm_file *file_priv);
1001 extern int drm_mode_detachmode_ioctl(struct drm_device *dev,
1002 void *data, struct drm_file *file_priv);
1004 extern int drm_mode_getproperty_ioctl(struct drm_device *dev,
1005 void *data, struct drm_file *file_priv);
1006 extern int drm_mode_getblob_ioctl(struct drm_device *dev,
1007 void *data, struct drm_file *file_priv);
1008 extern int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
1009 void *data, struct drm_file *file_priv);
1010 extern int drm_mode_hotplug_ioctl(struct drm_device *dev,
1011 void *data, struct drm_file *file_priv);
1012 extern int drm_mode_replacefb(struct drm_device *dev,
1013 void *data, struct drm_file *file_priv);
1014 extern int drm_mode_getencoder(struct drm_device *dev,
1015 void *data, struct drm_file *file_priv);
1016 extern int drm_mode_gamma_get_ioctl(struct drm_device *dev,
1017 void *data, struct drm_file *file_priv);
1018 extern int drm_mode_gamma_set_ioctl(struct drm_device *dev,
1019 void *data, struct drm_file *file_priv);
1020 extern u8 *drm_find_cea_extension(struct edid *edid);
1021 extern bool drm_detect_hdmi_monitor(struct edid *edid);
1022 extern bool drm_detect_monitor_audio(struct edid *edid);
1023 extern int drm_mode_page_flip_ioctl(struct drm_device *dev,
1024 void *data, struct drm_file *file_priv);
1025 extern struct drm_display_mode *drm_cvt_mode(struct drm_device *dev,
1026 int hdisplay, int vdisplay, int vrefresh,
1027 bool reduced, bool interlaced, bool margins);
1028 extern struct drm_display_mode *drm_gtf_mode(struct drm_device *dev,
1029 int hdisplay, int vdisplay, int vrefresh,
1030 bool interlaced, int margins);
1031 extern struct drm_display_mode *drm_gtf_mode_complex(struct drm_device *dev,
1032 int hdisplay, int vdisplay, int vrefresh,
1033 bool interlaced, int margins, int GTF_M,
1034 int GTF_2C, int GTF_K, int GTF_2J);
1035 extern int drm_add_modes_noedid(struct drm_connector *connector,
1036 int hdisplay, int vdisplay);
1038 extern int drm_edid_header_is_valid(const u8 *raw_edid);
1039 extern bool drm_edid_block_valid(u8 *raw_edid, int block);
1040 extern bool drm_edid_is_valid(struct edid *edid);
1041 struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
1042 int hsize, int vsize, int fresh,
1045 extern int drm_mode_create_dumb_ioctl(struct drm_device *dev,
1046 void *data, struct drm_file *file_priv);
1047 extern int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
1048 void *data, struct drm_file *file_priv);
1049 extern int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
1050 void *data, struct drm_file *file_priv);
1051 extern int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
1052 struct drm_file *file_priv);
1053 extern int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
1054 struct drm_file *file_priv);
1056 extern void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
1058 extern int drm_format_num_planes(uint32_t format);
1059 extern int drm_format_plane_cpp(uint32_t format, int plane);
1060 extern int drm_format_horz_chroma_subsampling(uint32_t format);
1061 extern int drm_format_vert_chroma_subsampling(uint32_t format);
1063 #endif /* __DRM_CRTC_H__ */