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/types.h>
30 #include <linux/idr.h>
31 #include <uapi_drm/drm_mode.h>
33 #include <uapi_drm/drm_fourcc.h>
37 struct drm_framebuffer;
38 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), \
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 /* note: use drm_framebuffer_remove() */
222 void (*destroy)(struct drm_framebuffer *framebuffer);
223 int (*create_handle)(struct drm_framebuffer *fb,
224 struct drm_file *file_priv,
225 unsigned int *handle);
227 * Optinal callback for the dirty fb ioctl.
229 * Userspace can notify the driver via this callback
230 * that a area of the framebuffer has changed and should
231 * be flushed to the display hardware.
233 * See documentation in drm_mode.h for the struct
234 * drm_mode_fb_dirty_cmd for more information as all
235 * the semantics and arguments have a one to one mapping
238 int (*dirty)(struct drm_framebuffer *framebuffer,
239 struct drm_file *file_priv, unsigned flags,
240 unsigned color, struct drm_clip_rect *clips,
244 struct drm_framebuffer {
245 struct drm_device *dev;
247 * Note that the fb is refcounted for the benefit of driver internals,
248 * for example some hw, disabling a CRTC/plane is asynchronous, and
249 * scanout does not actually complete until the next vblank. So some
250 * cleanup (like releasing the reference(s) on the backing GEM bo(s))
251 * should be deferred. In cases like this, the driver would like to
252 * hold a ref to the fb even though it has already been removed from
253 * userspace perspective.
255 struct kref refcount;
257 * Place on the dev->mode_config.fb_list, access protected by
258 * dev->mode_config.fb_lock.
260 struct list_head head;
261 struct drm_mode_object base;
262 const struct drm_framebuffer_funcs *funcs;
263 unsigned int pitches[4];
264 unsigned int offsets[4];
267 /* depth can be 15 or 16 */
271 uint32_t pixel_format; /* fourcc format */
272 struct list_head filp_head;
273 /* if you are using the helper */
274 void *helper_private;
277 struct drm_property_blob {
278 struct drm_mode_object base;
279 struct list_head head;
281 unsigned char data[];
284 struct drm_property_enum {
286 struct list_head head;
287 char name[DRM_PROP_NAME_LEN];
290 struct drm_property {
291 struct list_head head;
292 struct drm_mode_object base;
294 char name[DRM_PROP_NAME_LEN];
298 struct list_head enum_blob_list;
302 struct drm_connector;
304 struct drm_pending_vblank_event;
308 * drm_crtc_funcs - control CRTCs for a given device
309 * @save: save CRTC state
310 * @restore: restore CRTC state
311 * @reset: reset CRTC after state has been invalidated (e.g. resume)
312 * @cursor_set: setup the cursor
313 * @cursor_move: move the cursor
314 * @gamma_set: specify color ramp for CRTC
315 * @destroy: deinit and free object
316 * @set_property: called when a property is changed
317 * @set_config: apply a new CRTC configuration
318 * @page_flip: initiate a page flip
320 * The drm_crtc_funcs structure is the central CRTC management structure
321 * in the DRM. Each CRTC controls one or more connectors (note that the name
322 * CRTC is simply historical, a CRTC may control LVDS, VGA, DVI, TV out, etc.
323 * connectors, not just CRTs).
325 * Each driver is responsible for filling out this structure at startup time,
326 * in addition to providing other modesetting features, like i2c and DDC
329 struct drm_crtc_funcs {
330 /* Save CRTC state */
331 void (*save)(struct drm_crtc *crtc); /* suspend? */
332 /* Restore CRTC state */
333 void (*restore)(struct drm_crtc *crtc); /* resume? */
334 /* Reset CRTC state */
335 void (*reset)(struct drm_crtc *crtc);
337 /* cursor controls */
338 int (*cursor_set)(struct drm_crtc *crtc, struct drm_file *file_priv,
339 uint32_t handle, uint32_t width, uint32_t height);
340 int (*cursor_move)(struct drm_crtc *crtc, int x, int y);
342 /* Set gamma on the CRTC */
343 void (*gamma_set)(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b,
344 uint32_t start, uint32_t size);
345 /* Object destroy routine */
346 void (*destroy)(struct drm_crtc *crtc);
348 int (*set_config)(struct drm_mode_set *set);
351 * Flip to the given framebuffer. This implements the page
352 * flip ioctl described in drm_mode.h, specifically, the
353 * implementation must return immediately and block all
354 * rendering to the current fb until the flip has completed.
355 * If userspace set the event flag in the ioctl, the event
356 * argument will point to an event to send back when the flip
357 * completes, otherwise it will be NULL.
359 int (*page_flip)(struct drm_crtc *crtc,
360 struct drm_framebuffer *fb,
361 struct drm_pending_vblank_event *event);
363 int (*set_property)(struct drm_crtc *crtc,
364 struct drm_property *property, uint64_t val);
368 * drm_crtc - central CRTC control structure
369 * @dev: parent DRM device
370 * @head: list management
371 * @base: base KMS object for ID tracking etc.
372 * @enabled: is this CRTC enabled?
373 * @mode: current mode timings
374 * @hwmode: mode timings as programmed to hw regs
375 * @invert_dimensions: for purposes of error checking crtc vs fb sizes,
376 * invert the width/height of the crtc. This is used if the driver
377 * is performing 90 or 270 degree rotated scanout
378 * @x: x position on screen
379 * @y: y position on screen
380 * @funcs: CRTC control functions
381 * @gamma_size: size of gamma ramp
382 * @gamma_store: gamma ramp values
383 * @framedur_ns: precise frame timing
384 * @framedur_ns: precise line timing
385 * @pixeldur_ns: precise pixel timing
386 * @helper_private: mid-layer private data
387 * @properties: property tracking for this CRTC
389 * Each CRTC may have one or more connectors associated with it. This structure
390 * allows the CRTC to be controlled.
393 struct drm_device *dev;
394 struct list_head head;
399 * This provides a read lock for the overall crtc state (mode, dpms
400 * state, ...) and a write lock for everything which can be update
401 * without a full modeset (fb, cursor data, ...)
405 struct drm_mode_object base;
407 /* framebuffer the connector is currently bound to */
408 struct drm_framebuffer *fb;
412 /* Requested mode from modesetting. */
413 struct drm_display_mode mode;
415 /* Programmed mode in hw, after adjustments for encoders,
416 * crtc, panel scaling etc. Needed for timestamping etc.
418 struct drm_display_mode hwmode;
420 bool invert_dimensions;
423 const struct drm_crtc_funcs *funcs;
425 /* CRTC gamma size for reporting to userspace */
427 uint16_t *gamma_store;
429 /* Constants needed for precise vblank and swap timestamping. */
430 s64 framedur_ns, linedur_ns, pixeldur_ns;
432 /* if you are using the helper */
433 void *helper_private;
435 struct drm_object_properties properties;
440 * drm_connector_funcs - control connectors on a given device
441 * @dpms: set power state (see drm_crtc_funcs above)
442 * @save: save connector state
443 * @restore: restore connector state
444 * @reset: reset connector after state has been invalidated (e.g. resume)
445 * @detect: is this connector active?
446 * @fill_modes: fill mode list for this connector
447 * @set_property: property for this connector may need an update
448 * @destroy: make object go away
449 * @force: notify the driver that the connector is forced on
451 * Each CRTC may have one or more connectors attached to it. The functions
452 * below allow the core DRM code to control connectors, enumerate available modes,
455 struct drm_connector_funcs {
456 void (*dpms)(struct drm_connector *connector, int mode);
457 void (*save)(struct drm_connector *connector);
458 void (*restore)(struct drm_connector *connector);
459 void (*reset)(struct drm_connector *connector);
461 /* Check to see if anything is attached to the connector.
462 * @force is set to false whilst polling, true when checking the
463 * connector due to user request. @force can be used by the driver
464 * to avoid expensive, destructive operations during automated
467 enum drm_connector_status (*detect)(struct drm_connector *connector,
469 int (*fill_modes)(struct drm_connector *connector, uint32_t max_width, uint32_t max_height);
470 int (*set_property)(struct drm_connector *connector, struct drm_property *property,
472 void (*destroy)(struct drm_connector *connector);
473 void (*force)(struct drm_connector *connector);
477 * drm_encoder_funcs - encoder controls
478 * @reset: reset state (e.g. at init or resume time)
479 * @destroy: cleanup and free associated data
481 * Encoders sit between CRTCs and connectors.
483 struct drm_encoder_funcs {
484 void (*reset)(struct drm_encoder *encoder);
485 void (*destroy)(struct drm_encoder *encoder);
488 #define DRM_CONNECTOR_MAX_UMODES 16
489 #define DRM_CONNECTOR_LEN 32
490 #define DRM_CONNECTOR_MAX_ENCODER 3
493 * drm_encoder - central DRM encoder structure
494 * @dev: parent DRM device
495 * @head: list management
496 * @base: base KMS object
497 * @encoder_type: one of the %DRM_MODE_ENCODER_<foo> types in drm_mode.h
498 * @possible_crtcs: bitmask of potential CRTC bindings
499 * @possible_clones: bitmask of potential sibling encoders for cloning
500 * @crtc: currently bound CRTC
501 * @funcs: control functions
502 * @helper_private: mid-layer private data
504 * CRTCs drive pixels to encoders, which convert them into signals
505 * appropriate for a given connector or set of connectors.
508 struct drm_device *dev;
509 struct list_head head;
511 struct drm_mode_object base;
513 uint32_t possible_crtcs;
514 uint32_t possible_clones;
516 struct drm_crtc *crtc;
517 const struct drm_encoder_funcs *funcs;
518 void *helper_private;
521 enum drm_connector_force {
522 DRM_FORCE_UNSPECIFIED,
524 DRM_FORCE_ON, /* force on analog part normally */
525 DRM_FORCE_ON_DIGITAL, /* for DVI-I use digital connector */
528 /* should we poll this connector for connects and disconnects */
529 /* hot plug detectable */
530 #define DRM_CONNECTOR_POLL_HPD (1 << 0)
531 /* poll for connections */
532 #define DRM_CONNECTOR_POLL_CONNECT (1 << 1)
533 /* can cleanly poll for disconnections without flickering the screen */
534 /* DACs should rarely do this without a lot of testing */
535 #define DRM_CONNECTOR_POLL_DISCONNECT (1 << 2)
537 #define MAX_ELD_BYTES 128
540 * drm_connector - central DRM connector control structure
541 * @dev: parent DRM device
542 * @kdev: kernel device for sysfs attributes
543 * @attr: sysfs attributes
544 * @head: list management
545 * @base: base KMS object
546 * @connector_type: one of the %DRM_MODE_CONNECTOR_<foo> types from drm_mode.h
547 * @connector_type_id: index into connector type enum
548 * @interlace_allowed: can this connector handle interlaced modes?
549 * @doublescan_allowed: can this connector handle doublescan?
550 * @modes: modes available on this connector (from fill_modes() + user)
551 * @status: one of the drm_connector_status enums (connected, not, or unknown)
552 * @probed_modes: list of modes derived directly from the display
553 * @display_info: information about attached display (e.g. from EDID)
554 * @funcs: connector control functions
555 * @edid_blob_ptr: DRM property containing EDID if present
556 * @properties: property tracking for this connector
557 * @polled: a %DRM_CONNECTOR_POLL_<foo> value for core driven polling
558 * @dpms: current dpms state
559 * @helper_private: mid-layer private data
560 * @force: a %DRM_FORCE_<foo> state for forced mode sets
561 * @encoder_ids: valid encoders for this connector
562 * @encoder: encoder driving this connector, if any
563 * @eld: EDID-like data, if present
564 * @dvi_dual: dual link DVI, if found
565 * @max_tmds_clock: max clock rate, if found
566 * @latency_present: AV delay info from ELD, if found
567 * @video_latency: video latency info from ELD, if found
568 * @audio_latency: audio latency info from ELD, if found
569 * @null_edid_counter: track sinks that give us all zeros for the EDID
571 * Each connector may be connected to one or more CRTCs, or may be clonable by
572 * another connector if they can share a CRTC. Each connector also has a specific
573 * position in the broader display (referred to as a 'screen' though it could
574 * span multiple monitors).
576 struct drm_connector {
577 struct drm_device *dev;
578 /* struct device kdev; XXXKIB */
579 struct device_attribute *attr;
580 struct list_head head;
582 struct drm_mode_object base;
585 int connector_type_id;
586 bool interlace_allowed;
587 bool doublescan_allowed;
588 struct list_head modes; /* list of modes on this connector */
590 enum drm_connector_status status;
592 /* these are modes added by probing with DDC or the BIOS */
593 struct list_head probed_modes;
595 struct drm_display_info display_info;
596 const struct drm_connector_funcs *funcs;
598 struct drm_property_blob *edid_blob_ptr;
599 struct drm_object_properties properties;
601 uint8_t polled; /* DRM_CONNECTOR_POLL_* */
603 /* requested DPMS state */
606 void *helper_private;
608 /* forced on connector */
609 enum drm_connector_force force;
610 uint32_t encoder_ids[DRM_CONNECTOR_MAX_ENCODER];
611 struct drm_encoder *encoder; /* currently active encoder */
614 uint8_t eld[MAX_ELD_BYTES];
616 int max_tmds_clock; /* in MHz */
617 bool latency_present[2];
618 int video_latency[2]; /* [0]: progressive, [1]: interlaced */
619 int audio_latency[2];
620 int null_edid_counter; /* needed to workaround some HW bugs where we get all 0s */
621 unsigned bad_edid_counter;
625 * drm_plane_funcs - driver plane control functions
626 * @update_plane: update the plane configuration
627 * @disable_plane: shut down the plane
628 * @destroy: clean up plane resources
629 * @set_property: called when a property is changed
631 struct drm_plane_funcs {
632 int (*update_plane)(struct drm_plane *plane,
633 struct drm_crtc *crtc, struct drm_framebuffer *fb,
634 int crtc_x, int crtc_y,
635 unsigned int crtc_w, unsigned int crtc_h,
636 uint32_t src_x, uint32_t src_y,
637 uint32_t src_w, uint32_t src_h);
638 int (*disable_plane)(struct drm_plane *plane);
639 void (*destroy)(struct drm_plane *plane);
641 int (*set_property)(struct drm_plane *plane,
642 struct drm_property *property, uint64_t val);
646 * drm_plane - central DRM plane control structure
647 * @dev: DRM device this plane belongs to
648 * @head: for list management
649 * @base: base mode object
650 * @possible_crtcs: pipes this plane can be bound to
651 * @format_types: array of formats supported by this plane
652 * @format_count: number of formats supported
653 * @crtc: currently bound CRTC
654 * @fb: currently bound fb
655 * @gamma_size: size of gamma table
656 * @gamma_store: gamma correction table
657 * @enabled: enabled flag
658 * @funcs: helper functions
659 * @helper_private: storage for drver layer
660 * @properties: property tracking for this plane
663 struct drm_device *dev;
664 struct list_head head;
666 struct drm_mode_object base;
668 uint32_t possible_crtcs;
669 uint32_t *format_types;
670 uint32_t format_count;
672 struct drm_crtc *crtc;
673 struct drm_framebuffer *fb;
675 /* CRTC gamma size for reporting to userspace */
677 uint16_t *gamma_store;
681 const struct drm_plane_funcs *funcs;
682 void *helper_private;
684 struct drm_object_properties properties;
688 * drm_mode_set - new values for a CRTC config change
689 * @head: list management
690 * @fb: framebuffer to use for new config
691 * @crtc: CRTC whose configuration we're about to change
692 * @mode: mode timings to use
693 * @x: position of this CRTC relative to @fb
694 * @y: position of this CRTC relative to @fb
695 * @connectors: array of connectors to drive with this CRTC if possible
696 * @num_connectors: size of @connectors array
698 * Represents a single crtc the connectors that it drives with what mode
699 * and from which framebuffer it scans out from.
701 * This is used to set modes.
703 struct drm_mode_set {
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;
748 /* list of object IDs for this group */
753 * drm_mode_config - Mode configuration control structure
754 * @mutex: mutex protecting KMS related lists and structures
755 * @idr_mutex: mutex for KMS ID allocation and management
756 * @crtc_idr: main KMS ID tracking object
757 * @num_fb: number of fbs available
758 * @fb_list: list of framebuffers available
759 * @num_connector: number of connectors on this device
760 * @connector_list: list of connector objects
761 * @num_encoder: number of encoders on this device
762 * @encoder_list: list of encoder objects
763 * @num_crtc: number of CRTCs on this device
764 * @crtc_list: list of CRTC objects
765 * @min_width: minimum pixel width on this device
766 * @min_height: minimum pixel height on this device
767 * @max_width: maximum pixel width on this device
768 * @max_height: maximum pixel height on this device
769 * @funcs: core driver provided mode setting functions
770 * @fb_base: base address of the framebuffer
771 * @poll_enabled: track polling status for this device
772 * @output_poll_work: delayed work for polling in process context
773 * @*_property: core property tracking
775 * Core mode resource tracking structure. All CRTC, encoders, and connectors
776 * enumerated by the driver are added here, as are global properties. Some
777 * global restrictions are also here, e.g. dimension restrictions.
779 struct drm_mode_config {
780 struct lock mutex; /* protects configuration (mode lists etc.) */
781 struct lock idr_mutex; /* for IDR management */
782 struct idr crtc_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */
783 /* this is limited to one for now */
787 * fb_lock - mutex to protect fb state
789 * Besides the global fb list his also protects the fbs list in the
794 struct list_head fb_list;
797 struct list_head connector_list;
799 struct list_head encoder_list;
801 struct list_head plane_list;
804 struct list_head crtc_list;
806 struct list_head property_list;
808 int min_width, min_height;
809 int max_width, max_height;
810 const struct drm_mode_config_funcs *funcs;
811 resource_size_t fb_base;
813 /* output poll support */
816 struct timeout_task output_poll_task;
818 /* pointers to standard properties */
819 struct list_head property_blob_list;
820 struct drm_property *edid_property;
821 struct drm_property *dpms_property;
823 /* DVI-I properties */
824 struct drm_property *dvi_i_subconnector_property;
825 struct drm_property *dvi_i_select_subconnector_property;
828 struct drm_property *tv_subconnector_property;
829 struct drm_property *tv_select_subconnector_property;
830 struct drm_property *tv_mode_property;
831 struct drm_property *tv_left_margin_property;
832 struct drm_property *tv_right_margin_property;
833 struct drm_property *tv_top_margin_property;
834 struct drm_property *tv_bottom_margin_property;
835 struct drm_property *tv_brightness_property;
836 struct drm_property *tv_contrast_property;
837 struct drm_property *tv_flicker_reduction_property;
838 struct drm_property *tv_overscan_property;
839 struct drm_property *tv_saturation_property;
840 struct drm_property *tv_hue_property;
842 /* Optional properties */
843 struct drm_property *scaling_mode_property;
844 struct drm_property *dithering_mode_property;
845 struct drm_property *dirty_info_property;
847 /* dumb ioctl parameters */
848 uint32_t preferred_depth, prefer_shadow;
851 #define obj_to_crtc(x) container_of(x, struct drm_crtc, base)
852 #define obj_to_connector(x) container_of(x, struct drm_connector, base)
853 #define obj_to_encoder(x) container_of(x, struct drm_encoder, base)
854 #define obj_to_mode(x) container_of(x, struct drm_display_mode, base)
855 #define obj_to_fb(x) container_of(x, struct drm_framebuffer, base)
856 #define obj_to_property(x) container_of(x, struct drm_property, base)
857 #define obj_to_blob(x) container_of(x, struct drm_property_blob, base)
858 #define obj_to_plane(x) container_of(x, struct drm_plane, base)
860 struct drm_prop_enum_list {
865 extern void drm_modeset_lock_all(struct drm_device *dev);
866 extern void drm_modeset_unlock_all(struct drm_device *dev);
867 extern void drm_warn_on_modeset_not_all_locked(struct drm_device *dev);
869 extern int drm_crtc_init(struct drm_device *dev,
870 struct drm_crtc *crtc,
871 const struct drm_crtc_funcs *funcs);
872 extern void drm_crtc_cleanup(struct drm_crtc *crtc);
874 extern int drm_connector_init(struct drm_device *dev,
875 struct drm_connector *connector,
876 const struct drm_connector_funcs *funcs,
879 extern void drm_connector_cleanup(struct drm_connector *connector);
880 /* helper to unplug all connectors from sysfs for device */
881 extern void drm_connector_unplug_all(struct drm_device *dev);
883 extern int drm_encoder_init(struct drm_device *dev,
884 struct drm_encoder *encoder,
885 const struct drm_encoder_funcs *funcs,
888 extern int drm_plane_init(struct drm_device *dev,
889 struct drm_plane *plane,
890 unsigned long possible_crtcs,
891 const struct drm_plane_funcs *funcs,
892 const uint32_t *formats, uint32_t format_count,
894 extern void drm_plane_cleanup(struct drm_plane *plane);
896 extern void drm_encoder_cleanup(struct drm_encoder *encoder);
898 extern char *drm_get_connector_name(struct drm_connector *connector);
899 extern char *drm_get_dpms_name(int val);
900 extern char *drm_get_dvi_i_subconnector_name(int val);
901 extern char *drm_get_dvi_i_select_name(int val);
902 extern char *drm_get_tv_subconnector_name(int val);
903 extern char *drm_get_tv_select_name(int val);
904 extern void drm_fb_release(struct drm_file *file_priv);
905 extern int drm_mode_group_init_legacy_group(struct drm_device *dev, struct drm_mode_group *group);
906 extern bool drm_probe_ddc(device_t adapter);
907 extern struct edid *drm_get_edid(struct drm_connector *connector,
909 extern int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid);
910 extern void drm_mode_probed_add(struct drm_connector *connector, struct drm_display_mode *mode);
911 extern void drm_mode_remove(struct drm_connector *connector, struct drm_display_mode *mode);
912 extern void drm_mode_copy(struct drm_display_mode *dst, const struct drm_display_mode *src);
913 extern struct drm_display_mode *drm_mode_duplicate(struct drm_device *dev,
914 const struct drm_display_mode *mode);
915 extern void drm_mode_debug_printmodeline(const struct drm_display_mode *mode);
916 extern void drm_mode_config_init(struct drm_device *dev);
917 extern void drm_mode_config_reset(struct drm_device *dev);
918 extern void drm_mode_config_cleanup(struct drm_device *dev);
919 extern void drm_mode_set_name(struct drm_display_mode *mode);
920 extern bool drm_mode_equal(const struct drm_display_mode *mode1, const struct drm_display_mode *mode2);
921 extern bool drm_mode_equal_no_clocks(const struct drm_display_mode *mode1, const struct drm_display_mode *mode2);
922 extern int drm_mode_width(const struct drm_display_mode *mode);
923 extern int drm_mode_height(const struct drm_display_mode *mode);
925 /* for us by fb module */
926 extern struct drm_display_mode *drm_mode_create(struct drm_device *dev);
927 extern void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode);
928 extern void drm_mode_list_concat(struct list_head *head,
929 struct list_head *new);
930 extern void drm_mode_validate_size(struct drm_device *dev,
931 struct list_head *mode_list,
932 int maxX, int maxY, int maxPitch);
933 extern void drm_mode_validate_clocks(struct drm_device *dev,
934 struct list_head *mode_list,
935 int *min, int *max, int n_ranges);
936 extern void drm_mode_prune_invalid(struct drm_device *dev,
937 struct list_head *mode_list, bool verbose);
938 extern void drm_mode_sort(struct list_head *mode_list);
939 extern int drm_mode_hsync(const struct drm_display_mode *mode);
940 extern int drm_mode_vrefresh(const struct drm_display_mode *mode);
941 extern void drm_mode_set_crtcinfo(struct drm_display_mode *p,
943 extern void drm_mode_connector_list_update(struct drm_connector *connector);
944 extern int drm_mode_connector_update_edid_property(struct drm_connector *connector,
946 extern int drm_object_property_set_value(struct drm_mode_object *obj,
947 struct drm_property *property,
949 extern int drm_object_property_get_value(struct drm_mode_object *obj,
950 struct drm_property *property,
952 extern struct drm_display_mode *drm_crtc_mode_create(struct drm_device *dev);
953 extern void drm_framebuffer_set_object(struct drm_device *dev,
954 unsigned long handle);
955 extern int drm_framebuffer_init(struct drm_device *dev,
956 struct drm_framebuffer *fb,
957 const struct drm_framebuffer_funcs *funcs);
958 extern struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev,
960 extern void drm_framebuffer_unreference(struct drm_framebuffer *fb);
961 extern void drm_framebuffer_reference(struct drm_framebuffer *fb);
962 extern void drm_framebuffer_remove(struct drm_framebuffer *fb);
963 extern void drm_framebuffer_cleanup(struct drm_framebuffer *fb);
964 extern void drm_framebuffer_unregister_private(struct drm_framebuffer *fb);
965 extern int drmfb_probe(struct drm_device *dev, struct drm_crtc *crtc);
966 extern int drmfb_remove(struct drm_device *dev, struct drm_framebuffer *fb);
967 extern void drm_crtc_probe_connector_modes(struct drm_device *dev, int maxX, int maxY);
968 extern bool drm_crtc_in_use(struct drm_crtc *crtc);
970 extern void drm_object_attach_property(struct drm_mode_object *obj,
971 struct drm_property *property,
973 extern struct drm_property *drm_property_create(struct drm_device *dev, int flags,
974 const char *name, int num_values);
975 extern struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags,
977 const struct drm_prop_enum_list *props,
979 struct drm_property *drm_property_create_bitmask(struct drm_device *dev,
980 int flags, const char *name,
981 const struct drm_prop_enum_list *props,
983 struct drm_property *drm_property_create_range(struct drm_device *dev, int flags,
985 uint64_t min, uint64_t max);
986 extern void drm_property_destroy(struct drm_device *dev, struct drm_property *property);
987 extern int drm_property_add_enum(struct drm_property *property, int index,
988 uint64_t value, const char *name);
989 extern int drm_mode_create_dvi_i_properties(struct drm_device *dev);
990 extern int drm_mode_create_tv_properties(struct drm_device *dev, int num_formats,
992 extern int drm_mode_create_scaling_mode_property(struct drm_device *dev);
993 extern int drm_mode_create_dithering_property(struct drm_device *dev);
994 extern int drm_mode_create_dirty_info_property(struct drm_device *dev);
995 extern char *drm_get_encoder_name(struct drm_encoder *encoder);
997 extern int drm_mode_connector_attach_encoder(struct drm_connector *connector,
998 struct drm_encoder *encoder);
999 extern void drm_mode_connector_detach_encoder(struct drm_connector *connector,
1000 struct drm_encoder *encoder);
1001 extern int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
1003 extern struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
1004 uint32_t id, uint32_t type);
1006 extern int drm_mode_getresources(struct drm_device *dev,
1007 void *data, struct drm_file *file_priv);
1008 extern int drm_mode_getplane_res(struct drm_device *dev, void *data,
1009 struct drm_file *file_priv);
1010 extern int drm_mode_getcrtc(struct drm_device *dev,
1011 void *data, struct drm_file *file_priv);
1012 extern int drm_mode_getconnector(struct drm_device *dev,
1013 void *data, struct drm_file *file_priv);
1014 extern int drm_mode_set_config_internal(struct drm_mode_set *set);
1015 extern int drm_mode_setcrtc(struct drm_device *dev,
1016 void *data, struct drm_file *file_priv);
1017 extern int drm_mode_getplane(struct drm_device *dev,
1018 void *data, struct drm_file *file_priv);
1019 extern int drm_mode_setplane(struct drm_device *dev,
1020 void *data, struct drm_file *file_priv);
1021 extern int drm_mode_cursor_ioctl(struct drm_device *dev,
1022 void *data, struct drm_file *file_priv);
1023 extern int drm_mode_addfb(struct drm_device *dev,
1024 void *data, struct drm_file *file_priv);
1025 extern int drm_mode_addfb2(struct drm_device *dev,
1026 void *data, struct drm_file *file_priv);
1027 extern uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth);
1028 extern int drm_mode_rmfb(struct drm_device *dev,
1029 void *data, struct drm_file *file_priv);
1030 extern int drm_mode_getfb(struct drm_device *dev,
1031 void *data, struct drm_file *file_priv);
1032 extern int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
1033 void *data, struct drm_file *file_priv);
1035 extern int drm_mode_getproperty_ioctl(struct drm_device *dev,
1036 void *data, struct drm_file *file_priv);
1037 extern int drm_mode_getblob_ioctl(struct drm_device *dev,
1038 void *data, struct drm_file *file_priv);
1039 extern int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
1040 void *data, struct drm_file *file_priv);
1041 extern int drm_mode_hotplug_ioctl(struct drm_device *dev,
1042 void *data, struct drm_file *file_priv);
1043 extern int drm_mode_replacefb(struct drm_device *dev,
1044 void *data, struct drm_file *file_priv);
1045 extern int drm_mode_getencoder(struct drm_device *dev,
1046 void *data, struct drm_file *file_priv);
1047 extern int drm_mode_gamma_get_ioctl(struct drm_device *dev,
1048 void *data, struct drm_file *file_priv);
1049 extern int drm_mode_gamma_set_ioctl(struct drm_device *dev,
1050 void *data, struct drm_file *file_priv);
1051 extern u8 *drm_find_cea_extension(struct edid *edid);
1052 extern u8 drm_match_cea_mode(const struct drm_display_mode *to_match);
1053 extern bool drm_detect_hdmi_monitor(struct edid *edid);
1054 extern bool drm_detect_monitor_audio(struct edid *edid);
1055 extern bool drm_rgb_quant_range_selectable(struct edid *edid);
1056 extern int drm_mode_page_flip_ioctl(struct drm_device *dev,
1057 void *data, struct drm_file *file_priv);
1058 extern struct drm_display_mode *drm_cvt_mode(struct drm_device *dev,
1059 int hdisplay, int vdisplay, int vrefresh,
1060 bool reduced, bool interlaced, bool margins);
1061 extern struct drm_display_mode *drm_gtf_mode(struct drm_device *dev,
1062 int hdisplay, int vdisplay, int vrefresh,
1063 bool interlaced, int margins);
1064 extern struct drm_display_mode *drm_gtf_mode_complex(struct drm_device *dev,
1065 int hdisplay, int vdisplay, int vrefresh,
1066 bool interlaced, int margins, int GTF_M,
1067 int GTF_2C, int GTF_K, int GTF_2J);
1068 extern int drm_add_modes_noedid(struct drm_connector *connector,
1069 int hdisplay, int vdisplay);
1071 extern int drm_edid_header_is_valid(const u8 *raw_edid);
1072 extern bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid);
1073 extern bool drm_edid_is_valid(struct edid *edid);
1074 struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
1075 int hsize, int vsize, int fresh,
1078 extern int drm_mode_create_dumb_ioctl(struct drm_device *dev,
1079 void *data, struct drm_file *file_priv);
1080 extern int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
1081 void *data, struct drm_file *file_priv);
1082 extern int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
1083 void *data, struct drm_file *file_priv);
1084 extern int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
1085 struct drm_file *file_priv);
1086 extern int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
1087 struct drm_file *file_priv);
1089 extern void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
1091 extern int drm_format_num_planes(uint32_t format);
1092 extern int drm_format_plane_cpp(uint32_t format, int plane);
1093 extern int drm_format_horz_chroma_subsampling(uint32_t format);
1094 extern int drm_format_vert_chroma_subsampling(uint32_t format);
1096 #endif /* __DRM_CRTC_H__ */