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, \
122 .base.type = DRM_MODE_OBJECT_MODE
124 #define CRTC_INTERLACE_HALVE_V 0x1 /* halve V values for interlacing */
126 struct drm_display_mode {
128 struct list_head head;
129 struct drm_mode_object base;
131 char name[DRM_DISPLAY_MODE_LEN];
133 enum drm_mode_status status;
136 /* Proposed mode values */
137 int clock; /* in kHz */
150 /* Addressable image size (may be 0 for projectors, etc.) */
154 /* Actual mode we give to hw */
158 int crtc_hblank_start;
160 int crtc_hsync_start;
165 int crtc_vblank_start;
167 int crtc_vsync_start;
171 /* Driver private mode info */
176 int vrefresh; /* in Hz */
177 int hsync; /* in kHz */
180 enum drm_connector_status {
181 connector_status_connected = 1,
182 connector_status_disconnected = 2,
183 connector_status_unknown = 3,
186 enum subpixel_order {
188 SubPixelHorizontalRGB,
189 SubPixelHorizontalBGR,
195 #define DRM_COLOR_FORMAT_RGB444 (1<<0)
196 #define DRM_COLOR_FORMAT_YCRCB444 (1<<1)
197 #define DRM_COLOR_FORMAT_YCRCB422 (1<<2)
199 * Describes a given display (e.g. CRT or flat panel) and its limitations.
201 struct drm_display_info {
202 char name[DRM_DISPLAY_INFO_LEN];
205 unsigned int width_mm;
206 unsigned int height_mm;
208 /* Clock limits FIXME: storage format */
209 unsigned int min_vfreq, max_vfreq;
210 unsigned int min_hfreq, max_hfreq;
211 unsigned int pixel_clock;
214 enum subpixel_order subpixel_order;
220 struct drm_framebuffer_funcs {
221 void (*destroy)(struct drm_framebuffer *framebuffer);
222 int (*create_handle)(struct drm_framebuffer *fb,
223 struct drm_file *file_priv,
224 unsigned int *handle);
226 * Optinal callback for the dirty fb ioctl.
228 * Userspace can notify the driver via this callback
229 * that a area of the framebuffer has changed and should
230 * be flushed to the display hardware.
232 * See documentation in drm_mode.h for the struct
233 * drm_mode_fb_dirty_cmd for more information as all
234 * the semantics and arguments have a one to one mapping
237 int (*dirty)(struct drm_framebuffer *framebuffer,
238 struct drm_file *file_priv, unsigned flags,
239 unsigned color, struct drm_clip_rect *clips,
243 struct drm_framebuffer {
244 struct drm_device *dev;
245 struct list_head head;
246 struct drm_mode_object base;
247 const struct drm_framebuffer_funcs *funcs;
248 unsigned int pitches[4];
249 unsigned int offsets[4];
252 /* depth can be 15 or 16 */
256 uint32_t pixel_format; /* fourcc format */
257 struct list_head filp_head;
258 /* if you are using the helper */
259 void *helper_private;
262 struct drm_property_blob {
263 struct drm_mode_object base;
264 struct list_head head;
266 unsigned char data[];
269 struct drm_property_enum {
271 struct list_head head;
272 char name[DRM_PROP_NAME_LEN];
275 struct drm_property {
276 struct list_head head;
277 struct drm_mode_object base;
279 char name[DRM_PROP_NAME_LEN];
283 struct list_head enum_blob_list;
287 struct drm_connector;
289 struct drm_pending_vblank_event;
293 * drm_crtc_funcs - control CRTCs for a given device
294 * @save: save CRTC state
295 * @restore: restore CRTC state
296 * @reset: reset CRTC after state has been invalidate (e.g. resume)
297 * @cursor_set: setup the cursor
298 * @cursor_move: move the cursor
299 * @gamma_set: specify color ramp for CRTC
300 * @destroy: deinit and free object
301 * @set_property: called when a property is changed
302 * @set_config: apply a new CRTC configuration
303 * @page_flip: initiate a page flip
305 * The drm_crtc_funcs structure is the central CRTC management structure
306 * in the DRM. Each CRTC controls one or more connectors (note that the name
307 * CRTC is simply historical, a CRTC may control LVDS, VGA, DVI, TV out, etc.
308 * connectors, not just CRTs).
310 * Each driver is responsible for filling out this structure at startup time,
311 * in addition to providing other modesetting features, like i2c and DDC
314 struct drm_crtc_funcs {
315 /* Save CRTC state */
316 void (*save)(struct drm_crtc *crtc); /* suspend? */
317 /* Restore CRTC state */
318 void (*restore)(struct drm_crtc *crtc); /* resume? */
319 /* Reset CRTC state */
320 void (*reset)(struct drm_crtc *crtc);
322 /* cursor controls */
323 int (*cursor_set)(struct drm_crtc *crtc, struct drm_file *file_priv,
324 uint32_t handle, uint32_t width, uint32_t height);
325 int (*cursor_move)(struct drm_crtc *crtc, int x, int y);
327 /* Set gamma on the CRTC */
328 void (*gamma_set)(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b,
329 uint32_t start, uint32_t size);
330 /* Object destroy routine */
331 void (*destroy)(struct drm_crtc *crtc);
333 int (*set_config)(struct drm_mode_set *set);
336 * Flip to the given framebuffer. This implements the page
337 * flip ioctl described in drm_mode.h, specifically, the
338 * implementation must return immediately and block all
339 * rendering to the current fb until the flip has completed.
340 * If userspace set the event flag in the ioctl, the event
341 * argument will point to an event to send back when the flip
342 * completes, otherwise it will be NULL.
344 int (*page_flip)(struct drm_crtc *crtc,
345 struct drm_framebuffer *fb,
346 struct drm_pending_vblank_event *event);
348 int (*set_property)(struct drm_crtc *crtc,
349 struct drm_property *property, uint64_t val);
353 * drm_crtc - central CRTC control structure
354 * @dev: parent DRM device
355 * @head: list management
356 * @base: base KMS object for ID tracking etc.
357 * @enabled: is this CRTC enabled?
358 * @mode: current mode timings
359 * @hwmode: mode timings as programmed to hw regs
360 * @x: x position on screen
361 * @y: y position on screen
362 * @funcs: CRTC control functions
363 * @gamma_size: size of gamma ramp
364 * @gamma_store: gamma ramp values
365 * @framedur_ns: precise frame timing
366 * @framedur_ns: precise line timing
367 * @pixeldur_ns: precise pixel timing
368 * @helper_private: mid-layer private data
369 * @properties: property tracking for this CRTC
371 * Each CRTC may have one or more connectors associated with it. This structure
372 * allows the CRTC to be controlled.
375 struct drm_device *dev;
376 struct list_head head;
378 struct drm_mode_object base;
380 /* framebuffer the connector is currently bound to */
381 struct drm_framebuffer *fb;
385 /* Requested mode from modesetting. */
386 struct drm_display_mode mode;
388 /* Programmed mode in hw, after adjustments for encoders,
389 * crtc, panel scaling etc. Needed for timestamping etc.
391 struct drm_display_mode hwmode;
394 const struct drm_crtc_funcs *funcs;
396 /* CRTC gamma size for reporting to userspace */
398 uint16_t *gamma_store;
400 /* Constants needed for precise vblank and swap timestamping. */
401 s64 framedur_ns, linedur_ns, pixeldur_ns;
403 /* if you are using the helper */
404 void *helper_private;
406 struct drm_object_properties properties;
411 * drm_connector_funcs - control connectors on a given device
412 * @dpms: set power state (see drm_crtc_funcs above)
413 * @save: save connector state
414 * @restore: restore connector state
415 * @reset: reset connector after state has been invalidate (e.g. resume)
416 * @detect: is this connector active?
417 * @fill_modes: fill mode list for this connector
418 * @set_property: property for this connector may need update
419 * @destroy: make object go away
420 * @force: notify the driver the connector is forced on
422 * Each CRTC may have one or more connectors attached to it. The functions
423 * below allow the core DRM code to control connectors, enumerate available modes,
426 struct drm_connector_funcs {
427 void (*dpms)(struct drm_connector *connector, int mode);
428 void (*save)(struct drm_connector *connector);
429 void (*restore)(struct drm_connector *connector);
430 void (*reset)(struct drm_connector *connector);
432 /* Check to see if anything is attached to the connector.
433 * @force is set to false whilst polling, true when checking the
434 * connector due to user request. @force can be used by the driver
435 * to avoid expensive, destructive operations during automated
438 enum drm_connector_status (*detect)(struct drm_connector *connector,
440 int (*fill_modes)(struct drm_connector *connector, uint32_t max_width, uint32_t max_height);
441 int (*set_property)(struct drm_connector *connector, struct drm_property *property,
443 void (*destroy)(struct drm_connector *connector);
444 void (*force)(struct drm_connector *connector);
448 * drm_encoder_funcs - encoder controls
449 * @reset: reset state (e.g. at init or resume time)
450 * @destroy: cleanup and free associated data
452 * Encoders sit between CRTCs and connectors.
454 struct drm_encoder_funcs {
455 void (*reset)(struct drm_encoder *encoder);
456 void (*destroy)(struct drm_encoder *encoder);
459 #define DRM_CONNECTOR_MAX_UMODES 16
460 #define DRM_CONNECTOR_LEN 32
461 #define DRM_CONNECTOR_MAX_ENCODER 3
464 * drm_encoder - central DRM encoder structure
465 * @dev: parent DRM device
466 * @head: list management
467 * @base: base KMS object
468 * @encoder_type: one of the %DRM_MODE_ENCODER_<foo> types in drm_mode.h
469 * @possible_crtcs: bitmask of potential CRTC bindings
470 * @possible_clones: bitmask of potential sibling encoders for cloning
471 * @crtc: currently bound CRTC
472 * @funcs: control functions
473 * @helper_private: mid-layer private data
475 * CRTCs drive pixels to encoders, which convert them into signals
476 * appropriate for a given connector or set of connectors.
479 struct drm_device *dev;
480 struct list_head head;
482 struct drm_mode_object base;
484 uint32_t possible_crtcs;
485 uint32_t possible_clones;
487 struct drm_crtc *crtc;
488 const struct drm_encoder_funcs *funcs;
489 void *helper_private;
492 enum drm_connector_force {
493 DRM_FORCE_UNSPECIFIED,
495 DRM_FORCE_ON, /* force on analog part normally */
496 DRM_FORCE_ON_DIGITAL, /* for DVI-I use digital connector */
499 /* should we poll this connector for connects and disconnects */
500 /* hot plug detectable */
501 #define DRM_CONNECTOR_POLL_HPD (1 << 0)
502 /* poll for connections */
503 #define DRM_CONNECTOR_POLL_CONNECT (1 << 1)
504 /* can cleanly poll for disconnections without flickering the screen */
505 /* DACs should rarely do this without a lot of testing */
506 #define DRM_CONNECTOR_POLL_DISCONNECT (1 << 2)
508 #define MAX_ELD_BYTES 128
511 * drm_connector - central DRM connector control structure
512 * @dev: parent DRM device
513 * @kdev: kernel device for sysfs attributes
514 * @attr: sysfs attributes
515 * @head: list management
516 * @base: base KMS object
517 * @connector_type: one of the %DRM_MODE_CONNECTOR_<foo> types from drm_mode.h
518 * @connector_type_id: index into connector type enum
519 * @interlace_allowed: can this connector handle interlaced modes?
520 * @doublescan_allowed: can this connector handle doublescan?
521 * @modes: modes available on this connector (from fill_modes() + user)
522 * @status: one of the drm_connector_status enums (connected, not, or unknown)
523 * @probed_modes: list of modes derived directly from the display
524 * @display_info: information about attached display (e.g. from EDID)
525 * @funcs: connector control functions
526 * @user_modes: user added mode list
527 * @edid_blob_ptr: DRM property containing EDID if present
528 * @properties: property tracking for this connector
529 * @polled: a %DRM_CONNECTOR_POLL_<foo> value for core driven polling
530 * @dpms: current dpms state
531 * @helper_private: mid-layer private data
532 * @force: a %DRM_FORCE_<foo> state for forced mode sets
533 * @encoder_ids: valid encoders for this connector
534 * @encoder: encoder driving this connector, if any
535 * @eld: EDID-like data, if present
536 * @dvi_dual: dual link DVI, if found
537 * @max_tmds_clock: max clock rate, if found
538 * @latency_present: AV delay info from ELD, if found
539 * @video_latency: video latency info from ELD, if found
540 * @audio_latency: audio latency info from ELD, if found
541 * @null_edid_counter: track sinks that give us all zeros for the EDID
543 * Each connector may be connected to one or more CRTCs, or may be clonable by
544 * another connector if they can share a CRTC. Each connector also has a specific
545 * position in the broader display (referred to as a 'screen' though it could
546 * span multiple monitors).
548 struct drm_connector {
549 struct drm_device *dev;
551 struct device_attribute *attr;
552 struct list_head head;
554 struct drm_mode_object base;
557 int connector_type_id;
558 bool interlace_allowed;
559 bool doublescan_allowed;
560 struct list_head modes; /* list of modes on this connector */
562 enum drm_connector_status status;
564 /* these are modes added by probing with DDC or the BIOS */
565 struct list_head probed_modes;
567 struct drm_display_info display_info;
568 const struct drm_connector_funcs *funcs;
570 struct list_head user_modes;
571 struct drm_property_blob *edid_blob_ptr;
572 struct drm_object_properties properties;
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 */
587 uint8_t eld[MAX_ELD_BYTES];
589 int max_tmds_clock; /* in MHz */
590 bool latency_present[2];
591 int video_latency[2]; /* [0]: progressive, [1]: interlaced */
592 int audio_latency[2];
593 int null_edid_counter; /* needed to workaround some HW bugs where we get all 0s */
594 unsigned bad_edid_counter;
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
602 * @set_property: called when a property is changed
604 struct drm_plane_funcs {
605 int (*update_plane)(struct drm_plane *plane,
606 struct drm_crtc *crtc, struct drm_framebuffer *fb,
607 int crtc_x, int crtc_y,
608 unsigned int crtc_w, unsigned int crtc_h,
609 uint32_t src_x, uint32_t src_y,
610 uint32_t src_w, uint32_t src_h);
611 int (*disable_plane)(struct drm_plane *plane);
612 void (*destroy)(struct drm_plane *plane);
614 int (*set_property)(struct drm_plane *plane,
615 struct drm_property *property, uint64_t val);
619 * drm_plane - central DRM plane control structure
620 * @dev: DRM device this plane belongs to
621 * @head: for list management
622 * @base: base mode object
623 * @possible_crtcs: pipes this plane can be bound to
624 * @format_types: array of formats supported by this plane
625 * @format_count: number of formats supported
626 * @crtc: currently bound CRTC
627 * @fb: currently bound fb
628 * @gamma_size: size of gamma table
629 * @gamma_store: gamma correction table
630 * @enabled: enabled flag
631 * @funcs: helper functions
632 * @helper_private: storage for drver layer
633 * @properties: property tracking for this plane
636 struct drm_device *dev;
637 struct list_head head;
639 struct drm_mode_object base;
641 uint32_t possible_crtcs;
642 uint32_t *format_types;
643 uint32_t format_count;
645 struct drm_crtc *crtc;
646 struct drm_framebuffer *fb;
648 /* CRTC gamma size for reporting to userspace */
650 uint16_t *gamma_store;
654 const struct drm_plane_funcs *funcs;
655 void *helper_private;
657 struct drm_object_properties properties;
661 * drm_mode_set - new values for a CRTC config change
662 * @head: list management
663 * @fb: framebuffer to use for new config
664 * @crtc: CRTC whose configuration we're about to change
665 * @mode: mode timings to use
666 * @x: position of this CRTC relative to @fb
667 * @y: position of this CRTC relative to @fb
668 * @connectors: array of connectors to drive with this CRTC if possible
669 * @num_connectors: size of @connectors array
671 * Represents a single crtc the connectors that it drives with what mode
672 * and from which framebuffer it scans out from.
674 * This is used to set modes.
676 struct drm_mode_set {
677 struct drm_framebuffer *fb;
678 struct drm_crtc *crtc;
679 struct drm_display_mode *mode;
684 struct drm_connector **connectors;
685 size_t num_connectors;
689 * struct drm_mode_config_funcs - basic driver provided mode setting functions
690 * @fb_create: create a new framebuffer object
691 * @output_poll_changed: function to handle output configuration changes
693 * Some global (i.e. not per-CRTC, connector, etc) mode setting functions that
696 struct drm_mode_config_funcs {
697 struct drm_framebuffer *(*fb_create)(struct drm_device *dev,
698 struct drm_file *file_priv,
699 struct drm_mode_fb_cmd2 *mode_cmd);
700 void (*output_poll_changed)(struct drm_device *dev);
704 * drm_mode_group - group of mode setting resources for potential sub-grouping
705 * @num_crtcs: CRTC count
706 * @num_encoders: encoder count
707 * @num_connectors: connector count
708 * @id_list: list of KMS object IDs in this group
710 * Currently this simply tracks the global mode setting state. But in the
711 * future it could allow groups of objects to be set aside into independent
712 * control groups for use by different user level processes (e.g. two X servers
713 * running simultaneously on different heads, each with their own mode
714 * configuration and freedom of mode setting).
716 struct drm_mode_group {
718 uint32_t num_encoders;
719 uint32_t num_connectors;
721 /* list of object IDs for this group */
726 * drm_mode_config - Mode configuration control structure
727 * @mutex: mutex protecting KMS related lists and structures
728 * @idr_mutex: mutex for KMS ID allocation and management
729 * @crtc_idr: main KMS ID tracking object
730 * @num_fb: number of fbs available
731 * @fb_list: list of framebuffers available
732 * @num_connector: number of connectors on this device
733 * @connector_list: list of connector objects
734 * @num_encoder: number of encoders on this device
735 * @encoder_list: list of encoder objects
736 * @num_crtc: number of CRTCs on this device
737 * @crtc_list: list of CRTC objects
738 * @min_width: minimum pixel width on this device
739 * @min_height: minimum pixel height on this device
740 * @max_width: maximum pixel width on this device
741 * @max_height: maximum pixel height on this device
742 * @funcs: core driver provided mode setting functions
743 * @fb_base: base address of the framebuffer
744 * @poll_enabled: track polling status for this device
745 * @output_poll_work: delayed work for polling in process context
746 * @*_property: core property tracking
748 * Core mode resource tracking structure. All CRTC, encoders, and connectors
749 * enumerated by the driver are added here, as are global properties. Some
750 * global restrictions are also here, e.g. dimension restrictions.
752 struct drm_mode_config {
753 struct mutex mutex; /* protects configuration (mode lists etc.) */
754 struct mutex idr_mutex; /* for IDR management */
755 struct idr crtc_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */
756 /* this is limited to one for now */
758 struct list_head fb_list;
760 struct list_head connector_list;
762 struct list_head encoder_list;
764 struct list_head plane_list;
767 struct list_head crtc_list;
769 struct list_head property_list;
771 int min_width, min_height;
772 int max_width, max_height;
773 const struct drm_mode_config_funcs *funcs;
774 resource_size_t fb_base;
776 /* output poll support */
778 struct delayed_work output_poll_work;
780 /* pointers to standard properties */
781 struct list_head property_blob_list;
782 struct drm_property *edid_property;
783 struct drm_property *dpms_property;
785 /* DVI-I properties */
786 struct drm_property *dvi_i_subconnector_property;
787 struct drm_property *dvi_i_select_subconnector_property;
790 struct drm_property *tv_subconnector_property;
791 struct drm_property *tv_select_subconnector_property;
792 struct drm_property *tv_mode_property;
793 struct drm_property *tv_left_margin_property;
794 struct drm_property *tv_right_margin_property;
795 struct drm_property *tv_top_margin_property;
796 struct drm_property *tv_bottom_margin_property;
797 struct drm_property *tv_brightness_property;
798 struct drm_property *tv_contrast_property;
799 struct drm_property *tv_flicker_reduction_property;
800 struct drm_property *tv_overscan_property;
801 struct drm_property *tv_saturation_property;
802 struct drm_property *tv_hue_property;
804 /* Optional properties */
805 struct drm_property *scaling_mode_property;
806 struct drm_property *dithering_mode_property;
807 struct drm_property *dirty_info_property;
809 /* dumb ioctl parameters */
810 uint32_t preferred_depth, prefer_shadow;
813 #define obj_to_crtc(x) container_of(x, struct drm_crtc, base)
814 #define obj_to_connector(x) container_of(x, struct drm_connector, base)
815 #define obj_to_encoder(x) container_of(x, struct drm_encoder, base)
816 #define obj_to_mode(x) container_of(x, struct drm_display_mode, base)
817 #define obj_to_fb(x) container_of(x, struct drm_framebuffer, base)
818 #define obj_to_property(x) container_of(x, struct drm_property, base)
819 #define obj_to_blob(x) container_of(x, struct drm_property_blob, base)
820 #define obj_to_plane(x) container_of(x, struct drm_plane, base)
822 struct drm_prop_enum_list {
827 extern int drm_crtc_init(struct drm_device *dev,
828 struct drm_crtc *crtc,
829 const struct drm_crtc_funcs *funcs);
830 extern void drm_crtc_cleanup(struct drm_crtc *crtc);
832 extern int drm_connector_init(struct drm_device *dev,
833 struct drm_connector *connector,
834 const struct drm_connector_funcs *funcs,
837 extern void drm_connector_cleanup(struct drm_connector *connector);
838 /* helper to unplug all connectors from sysfs for device */
839 extern void drm_connector_unplug_all(struct drm_device *dev);
841 extern int drm_encoder_init(struct drm_device *dev,
842 struct drm_encoder *encoder,
843 const struct drm_encoder_funcs *funcs,
846 extern int drm_plane_init(struct drm_device *dev,
847 struct drm_plane *plane,
848 unsigned long possible_crtcs,
849 const struct drm_plane_funcs *funcs,
850 const uint32_t *formats, uint32_t format_count,
852 extern void drm_plane_cleanup(struct drm_plane *plane);
854 extern void drm_encoder_cleanup(struct drm_encoder *encoder);
856 extern char *drm_get_connector_name(struct drm_connector *connector);
857 extern char *drm_get_dpms_name(int val);
858 extern char *drm_get_dvi_i_subconnector_name(int val);
859 extern char *drm_get_dvi_i_select_name(int val);
860 extern char *drm_get_tv_subconnector_name(int val);
861 extern char *drm_get_tv_select_name(int val);
862 extern void drm_fb_release(struct drm_file *file_priv);
863 extern int drm_mode_group_init_legacy_group(struct drm_device *dev, struct drm_mode_group *group);
864 extern bool drm_probe_ddc(struct i2c_adapter *adapter);
865 extern struct edid *drm_get_edid(struct drm_connector *connector,
866 struct i2c_adapter *adapter);
867 extern int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid);
868 extern void drm_mode_probed_add(struct drm_connector *connector, struct drm_display_mode *mode);
869 extern void drm_mode_remove(struct drm_connector *connector, struct drm_display_mode *mode);
870 extern void drm_mode_copy(struct drm_display_mode *dst, const struct drm_display_mode *src);
871 extern struct drm_display_mode *drm_mode_duplicate(struct drm_device *dev,
872 const struct drm_display_mode *mode);
873 extern void drm_mode_debug_printmodeline(struct drm_display_mode *mode);
874 extern void drm_mode_config_init(struct drm_device *dev);
875 extern void drm_mode_config_reset(struct drm_device *dev);
876 extern void drm_mode_config_cleanup(struct drm_device *dev);
877 extern void drm_mode_set_name(struct drm_display_mode *mode);
878 extern bool drm_mode_equal(struct drm_display_mode *mode1, struct drm_display_mode *mode2);
879 extern int drm_mode_width(struct drm_display_mode *mode);
880 extern int drm_mode_height(struct drm_display_mode *mode);
882 /* for us by fb module */
883 extern int drm_mode_attachmode_crtc(struct drm_device *dev,
884 struct drm_crtc *crtc,
885 const struct drm_display_mode *mode);
886 extern int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode);
888 extern struct drm_display_mode *drm_mode_create(struct drm_device *dev);
889 extern void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode);
890 extern void drm_mode_list_concat(struct list_head *head,
891 struct list_head *new);
892 extern void drm_mode_validate_size(struct drm_device *dev,
893 struct list_head *mode_list,
894 int maxX, int maxY, int maxPitch);
895 extern void drm_mode_prune_invalid(struct drm_device *dev,
896 struct list_head *mode_list, bool verbose);
897 extern void drm_mode_sort(struct list_head *mode_list);
898 extern int drm_mode_hsync(const struct drm_display_mode *mode);
899 extern int drm_mode_vrefresh(const struct drm_display_mode *mode);
900 extern void drm_mode_set_crtcinfo(struct drm_display_mode *p,
902 extern void drm_mode_connector_list_update(struct drm_connector *connector);
903 extern int drm_mode_connector_update_edid_property(struct drm_connector *connector,
905 extern int drm_connector_property_set_value(struct drm_connector *connector,
906 struct drm_property *property,
908 extern int drm_connector_property_get_value(struct drm_connector *connector,
909 struct drm_property *property,
911 extern int drm_object_property_set_value(struct drm_mode_object *obj,
912 struct drm_property *property,
914 extern int drm_object_property_get_value(struct drm_mode_object *obj,
915 struct drm_property *property,
917 extern struct drm_display_mode *drm_crtc_mode_create(struct drm_device *dev);
918 extern void drm_framebuffer_set_object(struct drm_device *dev,
919 unsigned long handle);
920 extern int drm_framebuffer_init(struct drm_device *dev,
921 struct drm_framebuffer *fb,
922 const struct drm_framebuffer_funcs *funcs);
923 extern void drm_framebuffer_cleanup(struct drm_framebuffer *fb);
924 extern int drmfb_probe(struct drm_device *dev, struct drm_crtc *crtc);
925 extern int drmfb_remove(struct drm_device *dev, struct drm_framebuffer *fb);
926 extern void drm_crtc_probe_connector_modes(struct drm_device *dev, int maxX, int maxY);
927 extern bool drm_crtc_in_use(struct drm_crtc *crtc);
929 extern void drm_connector_attach_property(struct drm_connector *connector,
930 struct drm_property *property, uint64_t init_val);
931 extern void drm_object_attach_property(struct drm_mode_object *obj,
932 struct drm_property *property,
934 extern struct drm_property *drm_property_create(struct drm_device *dev, int flags,
935 const char *name, int num_values);
936 extern struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags,
938 const struct drm_prop_enum_list *props,
940 struct drm_property *drm_property_create_bitmask(struct drm_device *dev,
941 int flags, const char *name,
942 const struct drm_prop_enum_list *props,
944 struct drm_property *drm_property_create_range(struct drm_device *dev, int flags,
946 uint64_t min, uint64_t max);
947 extern void drm_property_destroy(struct drm_device *dev, struct drm_property *property);
948 extern int drm_property_add_enum(struct drm_property *property, int index,
949 uint64_t value, const char *name);
950 extern int drm_mode_create_dvi_i_properties(struct drm_device *dev);
951 extern int drm_mode_create_tv_properties(struct drm_device *dev, int num_formats,
953 extern int drm_mode_create_scaling_mode_property(struct drm_device *dev);
954 extern int drm_mode_create_dithering_property(struct drm_device *dev);
955 extern int drm_mode_create_dirty_info_property(struct drm_device *dev);
956 extern char *drm_get_encoder_name(struct drm_encoder *encoder);
958 extern int drm_mode_connector_attach_encoder(struct drm_connector *connector,
959 struct drm_encoder *encoder);
960 extern void drm_mode_connector_detach_encoder(struct drm_connector *connector,
961 struct drm_encoder *encoder);
962 extern int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
964 extern struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
965 uint32_t id, uint32_t type);
967 extern int drm_mode_getresources(struct drm_device *dev,
968 void *data, struct drm_file *file_priv);
969 extern int drm_mode_getplane_res(struct drm_device *dev, void *data,
970 struct drm_file *file_priv);
971 extern int drm_mode_getcrtc(struct drm_device *dev,
972 void *data, struct drm_file *file_priv);
973 extern int drm_mode_getconnector(struct drm_device *dev,
974 void *data, struct drm_file *file_priv);
975 extern int drm_mode_setcrtc(struct drm_device *dev,
976 void *data, struct drm_file *file_priv);
977 extern int drm_mode_getplane(struct drm_device *dev,
978 void *data, struct drm_file *file_priv);
979 extern int drm_mode_setplane(struct drm_device *dev,
980 void *data, struct drm_file *file_priv);
981 extern int drm_mode_cursor_ioctl(struct drm_device *dev,
982 void *data, struct drm_file *file_priv);
983 extern int drm_mode_addfb(struct drm_device *dev,
984 void *data, struct drm_file *file_priv);
985 extern int drm_mode_addfb2(struct drm_device *dev,
986 void *data, struct drm_file *file_priv);
987 extern uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth);
988 extern int drm_mode_rmfb(struct drm_device *dev,
989 void *data, struct drm_file *file_priv);
990 extern int drm_mode_getfb(struct drm_device *dev,
991 void *data, struct drm_file *file_priv);
992 extern int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
993 void *data, struct drm_file *file_priv);
994 extern int drm_mode_addmode_ioctl(struct drm_device *dev,
995 void *data, struct drm_file *file_priv);
996 extern int drm_mode_rmmode_ioctl(struct drm_device *dev,
997 void *data, struct drm_file *file_priv);
998 extern int drm_mode_attachmode_ioctl(struct drm_device *dev,
999 void *data, struct drm_file *file_priv);
1000 extern int drm_mode_detachmode_ioctl(struct drm_device *dev,
1001 void *data, struct drm_file *file_priv);
1003 extern int drm_mode_getproperty_ioctl(struct drm_device *dev,
1004 void *data, struct drm_file *file_priv);
1005 extern int drm_mode_getblob_ioctl(struct drm_device *dev,
1006 void *data, struct drm_file *file_priv);
1007 extern int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
1008 void *data, struct drm_file *file_priv);
1009 extern int drm_mode_hotplug_ioctl(struct drm_device *dev,
1010 void *data, struct drm_file *file_priv);
1011 extern int drm_mode_replacefb(struct drm_device *dev,
1012 void *data, struct drm_file *file_priv);
1013 extern int drm_mode_getencoder(struct drm_device *dev,
1014 void *data, struct drm_file *file_priv);
1015 extern int drm_mode_gamma_get_ioctl(struct drm_device *dev,
1016 void *data, struct drm_file *file_priv);
1017 extern int drm_mode_gamma_set_ioctl(struct drm_device *dev,
1018 void *data, struct drm_file *file_priv);
1019 extern u8 *drm_find_cea_extension(struct edid *edid);
1020 extern bool drm_detect_hdmi_monitor(struct edid *edid);
1021 extern bool drm_detect_monitor_audio(struct edid *edid);
1022 extern int drm_mode_page_flip_ioctl(struct drm_device *dev,
1023 void *data, struct drm_file *file_priv);
1024 extern struct drm_display_mode *drm_cvt_mode(struct drm_device *dev,
1025 int hdisplay, int vdisplay, int vrefresh,
1026 bool reduced, bool interlaced, bool margins);
1027 extern struct drm_display_mode *drm_gtf_mode(struct drm_device *dev,
1028 int hdisplay, int vdisplay, int vrefresh,
1029 bool interlaced, int margins);
1030 extern struct drm_display_mode *drm_gtf_mode_complex(struct drm_device *dev,
1031 int hdisplay, int vdisplay, int vrefresh,
1032 bool interlaced, int margins, int GTF_M,
1033 int GTF_2C, int GTF_K, int GTF_2J);
1034 extern int drm_add_modes_noedid(struct drm_connector *connector,
1035 int hdisplay, int vdisplay);
1037 extern int drm_edid_header_is_valid(const u8 *raw_edid);
1038 extern bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid);
1039 extern bool drm_edid_is_valid(struct edid *edid);
1040 struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
1041 int hsize, int vsize, int fresh,
1044 extern int drm_mode_create_dumb_ioctl(struct drm_device *dev,
1045 void *data, struct drm_file *file_priv);
1046 extern int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
1047 void *data, struct drm_file *file_priv);
1048 extern int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
1049 void *data, struct drm_file *file_priv);
1050 extern int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
1051 struct drm_file *file_priv);
1052 extern int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
1053 struct drm_file *file_priv);
1055 extern void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
1057 extern int drm_format_num_planes(uint32_t format);
1058 extern int drm_format_plane_cpp(uint32_t format, int plane);
1059 extern int drm_format_horz_chroma_subsampling(uint32_t format);
1060 extern int drm_format_vert_chroma_subsampling(uint32_t format);
1062 #endif /* __DRM_CRTC_H__ */