2 * Copyright (c) 2006-2008 Intel Corporation
3 * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
4 * Copyright (c) 2008 Red Hat Inc.
6 * DRM core CRTC related functions
8 * Permission to use, copy, modify, distribute, and sell this software and its
9 * documentation for any purpose is hereby granted without fee, provided that
10 * the above copyright notice appear in all copies and that both that copyright
11 * notice and this permission notice appear in supporting documentation, and
12 * that the name of the copyright holders not be used in advertising or
13 * publicity pertaining to distribution of the software without specific,
14 * written prior permission. The copyright holders make no representations
15 * about the suitability of this software for any purpose. It is provided "as
16 * is" without express or implied warranty.
18 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
19 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
20 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
21 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
22 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
23 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
28 * Eric Anholt <eric@anholt.net>
29 * Dave Airlie <airlied@linux.ie>
30 * Jesse Barnes <jesse.barnes@intel.com>
32 #include <linux/list.h>
37 struct drm_prop_enum_list
{
42 /* Avoid boilerplate. I'm tired of typing. */
43 #define DRM_ENUM_NAME_FN(fnname, list) \
44 char *fnname(int val) \
47 for (i = 0; i < ARRAY_SIZE(list); i++) { \
48 if (list[i].type == val) \
49 return list[i].name; \
57 static struct drm_prop_enum_list drm_dpms_enum_list
[] =
58 { { DRM_MODE_DPMS_ON
, "On" },
59 { DRM_MODE_DPMS_STANDBY
, "Standby" },
60 { DRM_MODE_DPMS_SUSPEND
, "Suspend" },
61 { DRM_MODE_DPMS_OFF
, "Off" }
64 DRM_ENUM_NAME_FN(drm_get_dpms_name
, drm_dpms_enum_list
)
69 static struct drm_prop_enum_list drm_scaling_mode_enum_list
[] =
71 { DRM_MODE_SCALE_NON_GPU
, "Non-GPU" },
72 { DRM_MODE_SCALE_FULLSCREEN
, "Fullscreen" },
73 { DRM_MODE_SCALE_NO_SCALE
, "No scale" },
74 { DRM_MODE_SCALE_ASPECT
, "Aspect" },
77 static struct drm_prop_enum_list drm_dithering_mode_enum_list
[] =
79 { DRM_MODE_DITHERING_OFF
, "Off" },
80 { DRM_MODE_DITHERING_ON
, "On" },
84 * Non-global properties, but "required" for certain connectors.
86 static struct drm_prop_enum_list drm_dvi_i_select_enum_list
[] =
88 { DRM_MODE_SUBCONNECTOR_Automatic
, "Automatic" }, /* DVI-I and TV-out */
89 { DRM_MODE_SUBCONNECTOR_DVID
, "DVI-D" }, /* DVI-I */
90 { DRM_MODE_SUBCONNECTOR_DVIA
, "DVI-A" }, /* DVI-I */
93 DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name
, drm_dvi_i_select_enum_list
)
95 static struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list
[] =
97 { DRM_MODE_SUBCONNECTOR_Unknown
, "Unknown" }, /* DVI-I and TV-out */
98 { DRM_MODE_SUBCONNECTOR_DVID
, "DVI-D" }, /* DVI-I */
99 { DRM_MODE_SUBCONNECTOR_DVIA
, "DVI-A" }, /* DVI-I */
102 DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name
,
103 drm_dvi_i_subconnector_enum_list
)
105 static struct drm_prop_enum_list drm_tv_select_enum_list
[] =
107 { DRM_MODE_SUBCONNECTOR_Automatic
, "Automatic" }, /* DVI-I and TV-out */
108 { DRM_MODE_SUBCONNECTOR_Composite
, "Composite" }, /* TV-out */
109 { DRM_MODE_SUBCONNECTOR_SVIDEO
, "SVIDEO" }, /* TV-out */
110 { DRM_MODE_SUBCONNECTOR_Component
, "Component" }, /* TV-out */
113 DRM_ENUM_NAME_FN(drm_get_tv_select_name
, drm_tv_select_enum_list
)
115 static struct drm_prop_enum_list drm_tv_subconnector_enum_list
[] =
117 { DRM_MODE_SUBCONNECTOR_Unknown
, "Unknown" }, /* DVI-I and TV-out */
118 { DRM_MODE_SUBCONNECTOR_Composite
, "Composite" }, /* TV-out */
119 { DRM_MODE_SUBCONNECTOR_SVIDEO
, "SVIDEO" }, /* TV-out */
120 { DRM_MODE_SUBCONNECTOR_Component
, "Component" }, /* TV-out */
123 DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name
,
124 drm_tv_subconnector_enum_list
)
126 struct drm_conn_prop_enum_list
{
133 * Connector and encoder types.
135 static struct drm_conn_prop_enum_list drm_connector_enum_list
[] =
136 { { DRM_MODE_CONNECTOR_Unknown
, "Unknown", 0 },
137 { DRM_MODE_CONNECTOR_VGA
, "VGA", 0 },
138 { DRM_MODE_CONNECTOR_DVII
, "DVI-I", 0 },
139 { DRM_MODE_CONNECTOR_DVID
, "DVI-D", 0 },
140 { DRM_MODE_CONNECTOR_DVIA
, "DVI-A", 0 },
141 { DRM_MODE_CONNECTOR_Composite
, "Composite", 0 },
142 { DRM_MODE_CONNECTOR_SVIDEO
, "SVIDEO", 0 },
143 { DRM_MODE_CONNECTOR_LVDS
, "LVDS", 0 },
144 { DRM_MODE_CONNECTOR_Component
, "Component", 0 },
145 { DRM_MODE_CONNECTOR_9PinDIN
, "9-pin DIN", 0 },
146 { DRM_MODE_CONNECTOR_DisplayPort
, "DisplayPort", 0 },
147 { DRM_MODE_CONNECTOR_HDMIA
, "HDMI Type A", 0 },
148 { DRM_MODE_CONNECTOR_HDMIB
, "HDMI Type B", 0 },
151 static struct drm_prop_enum_list drm_encoder_enum_list
[] =
152 { { DRM_MODE_ENCODER_NONE
, "None" },
153 { DRM_MODE_ENCODER_DAC
, "DAC" },
154 { DRM_MODE_ENCODER_TMDS
, "TMDS" },
155 { DRM_MODE_ENCODER_LVDS
, "LVDS" },
156 { DRM_MODE_ENCODER_TVDAC
, "TV" },
159 char *drm_get_encoder_name(struct drm_encoder
*encoder
)
163 snprintf(buf
, 32, "%s-%d",
164 drm_encoder_enum_list
[encoder
->encoder_type
].name
,
169 char *drm_get_connector_name(struct drm_connector
*connector
)
173 snprintf(buf
, 32, "%s-%d",
174 drm_connector_enum_list
[connector
->connector_type
].name
,
175 connector
->connector_type_id
);
178 EXPORT_SYMBOL(drm_get_connector_name
);
180 char *drm_get_connector_status_name(enum drm_connector_status status
)
182 if (status
== connector_status_connected
)
184 else if (status
== connector_status_disconnected
)
185 return "disconnected";
191 * drm_mode_object_get - allocate a new identifier
193 * @ptr: object pointer, used to generate unique ID
197 * Caller must hold DRM mode_config lock.
199 * Create a unique identifier based on @ptr in @dev's identifier space. Used
200 * for tracking modes, CRTCs and connectors.
203 * New unique (relative to other objects in @dev) integer identifier for the
206 static int drm_mode_object_get(struct drm_device
*dev
,
207 struct drm_mode_object
*obj
, uint32_t obj_type
)
212 WARN(!mutex_is_locked(&dev
->mode_config
.mutex
),
213 "%s called w/o mode_config lock\n", __FUNCTION__
);
215 if (idr_pre_get(&dev
->mode_config
.crtc_idr
, GFP_KERNEL
) == 0) {
216 DRM_ERROR("Ran out memory getting a mode number\n");
220 ret
= idr_get_new_above(&dev
->mode_config
.crtc_idr
, obj
, 1, &new_id
);
225 obj
->type
= obj_type
;
230 * drm_mode_object_put - free an identifer
235 * Caller must hold DRM mode_config lock.
237 * Free @id from @dev's unique identifier pool.
239 static void drm_mode_object_put(struct drm_device
*dev
,
240 struct drm_mode_object
*object
)
242 idr_remove(&dev
->mode_config
.crtc_idr
, object
->id
);
245 void *drm_mode_object_find(struct drm_device
*dev
, uint32_t id
, uint32_t type
)
247 struct drm_mode_object
*obj
;
249 obj
= idr_find(&dev
->mode_config
.crtc_idr
, id
);
250 if (!obj
|| (obj
->type
!= type
) || (obj
->id
!= id
))
255 EXPORT_SYMBOL(drm_mode_object_find
);
258 * drm_crtc_from_fb - find the CRTC structure associated with an fb
260 * @fb: framebuffer in question
263 * Caller must hold mode_config lock.
265 * Find CRTC in the mode_config structure that matches @fb.
268 * Pointer to the CRTC or NULL if it wasn't found.
270 struct drm_crtc
*drm_crtc_from_fb(struct drm_device
*dev
,
271 struct drm_framebuffer
*fb
)
273 struct drm_crtc
*crtc
;
275 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
) {
283 * drm_framebuffer_init - initialize a framebuffer
287 * Caller must hold mode config lock.
289 * Allocates an ID for the framebuffer's parent mode object, sets its mode
290 * functions & device file and adds it to the master fd list.
293 * Zero on success, error code on falure.
295 int drm_framebuffer_init(struct drm_device
*dev
, struct drm_framebuffer
*fb
,
296 const struct drm_framebuffer_funcs
*funcs
)
300 ret
= drm_mode_object_get(dev
, &fb
->base
, DRM_MODE_OBJECT_FB
);
307 dev
->mode_config
.num_fb
++;
308 list_add(&fb
->head
, &dev
->mode_config
.fb_list
);
312 EXPORT_SYMBOL(drm_framebuffer_init
);
315 * drm_framebuffer_cleanup - remove a framebuffer object
316 * @fb: framebuffer to remove
319 * Caller must hold mode config lock.
321 * Scans all the CRTCs in @dev's mode_config. If they're using @fb, removes
322 * it, setting it to NULL.
324 void drm_framebuffer_cleanup(struct drm_framebuffer
*fb
)
326 struct drm_device
*dev
= fb
->dev
;
327 struct drm_crtc
*crtc
;
329 /* remove from any CRTC */
330 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
) {
335 drm_mode_object_put(dev
, &fb
->base
);
337 dev
->mode_config
.num_fb
--;
339 EXPORT_SYMBOL(drm_framebuffer_cleanup
);
342 * drm_crtc_init - Initialise a new CRTC object
344 * @crtc: CRTC object to init
345 * @funcs: callbacks for the new CRTC
348 * Caller must hold mode config lock.
350 * Inits a new object created as base part of an driver crtc object.
352 void drm_crtc_init(struct drm_device
*dev
, struct drm_crtc
*crtc
,
353 const struct drm_crtc_funcs
*funcs
)
358 mutex_lock(&dev
->mode_config
.mutex
);
359 drm_mode_object_get(dev
, &crtc
->base
, DRM_MODE_OBJECT_CRTC
);
361 list_add_tail(&crtc
->head
, &dev
->mode_config
.crtc_list
);
362 dev
->mode_config
.num_crtc
++;
363 mutex_unlock(&dev
->mode_config
.mutex
);
365 EXPORT_SYMBOL(drm_crtc_init
);
368 * drm_crtc_cleanup - Cleans up the core crtc usage.
369 * @crtc: CRTC to cleanup
372 * Caller must hold mode config lock.
374 * Cleanup @crtc. Removes from drm modesetting space
375 * does NOT free object, caller does that.
377 void drm_crtc_cleanup(struct drm_crtc
*crtc
)
379 struct drm_device
*dev
= crtc
->dev
;
381 if (crtc
->gamma_store
) {
382 kfree(crtc
->gamma_store
);
383 crtc
->gamma_store
= NULL
;
386 drm_mode_object_put(dev
, &crtc
->base
);
387 list_del(&crtc
->head
);
388 dev
->mode_config
.num_crtc
--;
390 EXPORT_SYMBOL(drm_crtc_cleanup
);
393 * drm_mode_probed_add - add a mode to a connector's probed mode list
394 * @connector: connector the new mode
398 * Caller must hold mode config lock.
400 * Add @mode to @connector's mode list for later use.
402 void drm_mode_probed_add(struct drm_connector
*connector
,
403 struct drm_display_mode
*mode
)
405 list_add(&mode
->head
, &connector
->probed_modes
);
407 EXPORT_SYMBOL(drm_mode_probed_add
);
410 * drm_mode_remove - remove and free a mode
411 * @connector: connector list to modify
412 * @mode: mode to remove
415 * Caller must hold mode config lock.
417 * Remove @mode from @connector's mode list, then free it.
419 void drm_mode_remove(struct drm_connector
*connector
,
420 struct drm_display_mode
*mode
)
422 list_del(&mode
->head
);
425 EXPORT_SYMBOL(drm_mode_remove
);
428 * drm_connector_init - Init a preallocated connector
430 * @connector: the connector to init
431 * @funcs: callbacks for this connector
432 * @name: user visible name of the connector
435 * Caller must hold @dev's mode_config lock.
437 * Initialises a preallocated connector. Connectors should be
438 * subclassed as part of driver connector objects.
440 void drm_connector_init(struct drm_device
*dev
,
441 struct drm_connector
*connector
,
442 const struct drm_connector_funcs
*funcs
,
445 mutex_lock(&dev
->mode_config
.mutex
);
447 connector
->dev
= dev
;
448 connector
->funcs
= funcs
;
449 drm_mode_object_get(dev
, &connector
->base
, DRM_MODE_OBJECT_CONNECTOR
);
450 connector
->connector_type
= connector_type
;
451 connector
->connector_type_id
=
452 ++drm_connector_enum_list
[connector_type
].count
; /* TODO */
453 INIT_LIST_HEAD(&connector
->user_modes
);
454 INIT_LIST_HEAD(&connector
->probed_modes
);
455 INIT_LIST_HEAD(&connector
->modes
);
456 connector
->edid_blob_ptr
= NULL
;
458 list_add_tail(&connector
->head
, &dev
->mode_config
.connector_list
);
459 dev
->mode_config
.num_connector
++;
461 drm_connector_attach_property(connector
,
462 dev
->mode_config
.edid_property
, 0);
464 drm_connector_attach_property(connector
,
465 dev
->mode_config
.dpms_property
, 0);
467 mutex_unlock(&dev
->mode_config
.mutex
);
469 EXPORT_SYMBOL(drm_connector_init
);
472 * drm_connector_cleanup - cleans up an initialised connector
473 * @connector: connector to cleanup
476 * Caller must hold @dev's mode_config lock.
478 * Cleans up the connector but doesn't free the object.
480 void drm_connector_cleanup(struct drm_connector
*connector
)
482 struct drm_device
*dev
= connector
->dev
;
483 struct drm_display_mode
*mode
, *t
;
485 list_for_each_entry_safe(mode
, t
, &connector
->probed_modes
, head
)
486 drm_mode_remove(connector
, mode
);
488 list_for_each_entry_safe(mode
, t
, &connector
->modes
, head
)
489 drm_mode_remove(connector
, mode
);
491 list_for_each_entry_safe(mode
, t
, &connector
->user_modes
, head
)
492 drm_mode_remove(connector
, mode
);
494 mutex_lock(&dev
->mode_config
.mutex
);
495 drm_mode_object_put(dev
, &connector
->base
);
496 list_del(&connector
->head
);
497 mutex_unlock(&dev
->mode_config
.mutex
);
499 EXPORT_SYMBOL(drm_connector_cleanup
);
501 void drm_encoder_init(struct drm_device
*dev
,
502 struct drm_encoder
*encoder
,
503 const struct drm_encoder_funcs
*funcs
,
506 mutex_lock(&dev
->mode_config
.mutex
);
510 drm_mode_object_get(dev
, &encoder
->base
, DRM_MODE_OBJECT_ENCODER
);
511 encoder
->encoder_type
= encoder_type
;
512 encoder
->funcs
= funcs
;
514 list_add_tail(&encoder
->head
, &dev
->mode_config
.encoder_list
);
515 dev
->mode_config
.num_encoder
++;
517 mutex_unlock(&dev
->mode_config
.mutex
);
519 EXPORT_SYMBOL(drm_encoder_init
);
521 void drm_encoder_cleanup(struct drm_encoder
*encoder
)
523 struct drm_device
*dev
= encoder
->dev
;
524 mutex_lock(&dev
->mode_config
.mutex
);
525 drm_mode_object_put(dev
, &encoder
->base
);
526 list_del(&encoder
->head
);
527 mutex_unlock(&dev
->mode_config
.mutex
);
529 EXPORT_SYMBOL(drm_encoder_cleanup
);
532 * drm_mode_create - create a new display mode
536 * Caller must hold DRM mode_config lock.
538 * Create a new drm_display_mode, give it an ID, and return it.
541 * Pointer to new mode on success, NULL on error.
543 struct drm_display_mode
*drm_mode_create(struct drm_device
*dev
)
545 struct drm_display_mode
*nmode
;
547 nmode
= kzalloc(sizeof(struct drm_display_mode
), GFP_KERNEL
);
551 drm_mode_object_get(dev
, &nmode
->base
, DRM_MODE_OBJECT_MODE
);
554 EXPORT_SYMBOL(drm_mode_create
);
557 * drm_mode_destroy - remove a mode
559 * @mode: mode to remove
562 * Caller must hold mode config lock.
564 * Free @mode's unique identifier, then free it.
566 void drm_mode_destroy(struct drm_device
*dev
, struct drm_display_mode
*mode
)
568 drm_mode_object_put(dev
, &mode
->base
);
572 EXPORT_SYMBOL(drm_mode_destroy
);
574 static int drm_mode_create_standard_connector_properties(struct drm_device
*dev
)
576 struct drm_property
*edid
;
577 struct drm_property
*dpms
;
581 * Standard properties (apply to all connectors)
583 edid
= drm_property_create(dev
, DRM_MODE_PROP_BLOB
|
584 DRM_MODE_PROP_IMMUTABLE
,
586 dev
->mode_config
.edid_property
= edid
;
588 dpms
= drm_property_create(dev
, DRM_MODE_PROP_ENUM
,
589 "DPMS", ARRAY_SIZE(drm_dpms_enum_list
));
590 for (i
= 0; i
< ARRAY_SIZE(drm_dpms_enum_list
); i
++)
591 drm_property_add_enum(dpms
, i
, drm_dpms_enum_list
[i
].type
,
592 drm_dpms_enum_list
[i
].name
);
593 dev
->mode_config
.dpms_property
= dpms
;
599 * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
602 * Called by a driver the first time a DVI-I connector is made.
604 int drm_mode_create_dvi_i_properties(struct drm_device
*dev
)
606 struct drm_property
*dvi_i_selector
;
607 struct drm_property
*dvi_i_subconnector
;
610 if (dev
->mode_config
.dvi_i_select_subconnector_property
)
614 drm_property_create(dev
, DRM_MODE_PROP_ENUM
,
615 "select subconnector",
616 ARRAY_SIZE(drm_dvi_i_select_enum_list
));
617 for (i
= 0; i
< ARRAY_SIZE(drm_dvi_i_select_enum_list
); i
++)
618 drm_property_add_enum(dvi_i_selector
, i
,
619 drm_dvi_i_select_enum_list
[i
].type
,
620 drm_dvi_i_select_enum_list
[i
].name
);
621 dev
->mode_config
.dvi_i_select_subconnector_property
= dvi_i_selector
;
624 drm_property_create(dev
, DRM_MODE_PROP_ENUM
|
625 DRM_MODE_PROP_IMMUTABLE
,
627 ARRAY_SIZE(drm_dvi_i_subconnector_enum_list
));
628 for (i
= 0; i
< ARRAY_SIZE(drm_dvi_i_subconnector_enum_list
); i
++)
629 drm_property_add_enum(dvi_i_subconnector
, i
,
630 drm_dvi_i_subconnector_enum_list
[i
].type
,
631 drm_dvi_i_subconnector_enum_list
[i
].name
);
632 dev
->mode_config
.dvi_i_subconnector_property
= dvi_i_subconnector
;
636 EXPORT_SYMBOL(drm_mode_create_dvi_i_properties
);
639 * drm_create_tv_properties - create TV specific connector properties
641 * @num_modes: number of different TV formats (modes) supported
642 * @modes: array of pointers to strings containing name of each format
644 * Called by a driver's TV initialization routine, this function creates
645 * the TV specific connector properties for a given device. Caller is
646 * responsible for allocating a list of format names and passing them to
649 int drm_mode_create_tv_properties(struct drm_device
*dev
, int num_modes
,
652 struct drm_property
*tv_selector
;
653 struct drm_property
*tv_subconnector
;
656 if (dev
->mode_config
.tv_select_subconnector_property
)
660 * Basic connector properties
662 tv_selector
= drm_property_create(dev
, DRM_MODE_PROP_ENUM
,
663 "select subconnector",
664 ARRAY_SIZE(drm_tv_select_enum_list
));
665 for (i
= 0; i
< ARRAY_SIZE(drm_tv_select_enum_list
); i
++)
666 drm_property_add_enum(tv_selector
, i
,
667 drm_tv_select_enum_list
[i
].type
,
668 drm_tv_select_enum_list
[i
].name
);
669 dev
->mode_config
.tv_select_subconnector_property
= tv_selector
;
672 drm_property_create(dev
, DRM_MODE_PROP_ENUM
|
673 DRM_MODE_PROP_IMMUTABLE
, "subconnector",
674 ARRAY_SIZE(drm_tv_subconnector_enum_list
));
675 for (i
= 0; i
< ARRAY_SIZE(drm_tv_subconnector_enum_list
); i
++)
676 drm_property_add_enum(tv_subconnector
, i
,
677 drm_tv_subconnector_enum_list
[i
].type
,
678 drm_tv_subconnector_enum_list
[i
].name
);
679 dev
->mode_config
.tv_subconnector_property
= tv_subconnector
;
682 * Other, TV specific properties: margins & TV modes.
684 dev
->mode_config
.tv_left_margin_property
=
685 drm_property_create(dev
, DRM_MODE_PROP_RANGE
,
687 dev
->mode_config
.tv_left_margin_property
->values
[0] = 0;
688 dev
->mode_config
.tv_left_margin_property
->values
[1] = 100;
690 dev
->mode_config
.tv_right_margin_property
=
691 drm_property_create(dev
, DRM_MODE_PROP_RANGE
,
693 dev
->mode_config
.tv_right_margin_property
->values
[0] = 0;
694 dev
->mode_config
.tv_right_margin_property
->values
[1] = 100;
696 dev
->mode_config
.tv_top_margin_property
=
697 drm_property_create(dev
, DRM_MODE_PROP_RANGE
,
699 dev
->mode_config
.tv_top_margin_property
->values
[0] = 0;
700 dev
->mode_config
.tv_top_margin_property
->values
[1] = 100;
702 dev
->mode_config
.tv_bottom_margin_property
=
703 drm_property_create(dev
, DRM_MODE_PROP_RANGE
,
705 dev
->mode_config
.tv_bottom_margin_property
->values
[0] = 0;
706 dev
->mode_config
.tv_bottom_margin_property
->values
[1] = 100;
708 dev
->mode_config
.tv_mode_property
=
709 drm_property_create(dev
, DRM_MODE_PROP_ENUM
,
711 for (i
= 0; i
< num_modes
; i
++)
712 drm_property_add_enum(dev
->mode_config
.tv_mode_property
, i
,
717 EXPORT_SYMBOL(drm_mode_create_tv_properties
);
720 * drm_mode_create_scaling_mode_property - create scaling mode property
723 * Called by a driver the first time it's needed, must be attached to desired
726 int drm_mode_create_scaling_mode_property(struct drm_device
*dev
)
728 struct drm_property
*scaling_mode
;
731 if (dev
->mode_config
.scaling_mode_property
)
735 drm_property_create(dev
, DRM_MODE_PROP_ENUM
, "scaling mode",
736 ARRAY_SIZE(drm_scaling_mode_enum_list
));
737 for (i
= 0; i
< ARRAY_SIZE(drm_scaling_mode_enum_list
); i
++)
738 drm_property_add_enum(scaling_mode
, i
,
739 drm_scaling_mode_enum_list
[i
].type
,
740 drm_scaling_mode_enum_list
[i
].name
);
742 dev
->mode_config
.scaling_mode_property
= scaling_mode
;
746 EXPORT_SYMBOL(drm_mode_create_scaling_mode_property
);
749 * drm_mode_create_dithering_property - create dithering property
752 * Called by a driver the first time it's needed, must be attached to desired
755 int drm_mode_create_dithering_property(struct drm_device
*dev
)
757 struct drm_property
*dithering_mode
;
760 if (dev
->mode_config
.dithering_mode_property
)
764 drm_property_create(dev
, DRM_MODE_PROP_ENUM
, "dithering",
765 ARRAY_SIZE(drm_dithering_mode_enum_list
));
766 for (i
= 0; i
< ARRAY_SIZE(drm_dithering_mode_enum_list
); i
++)
767 drm_property_add_enum(dithering_mode
, i
,
768 drm_dithering_mode_enum_list
[i
].type
,
769 drm_dithering_mode_enum_list
[i
].name
);
770 dev
->mode_config
.dithering_mode_property
= dithering_mode
;
774 EXPORT_SYMBOL(drm_mode_create_dithering_property
);
777 * drm_mode_config_init - initialize DRM mode_configuration structure
781 * None, should happen single threaded at init time.
783 * Initialize @dev's mode_config structure, used for tracking the graphics
784 * configuration of @dev.
786 void drm_mode_config_init(struct drm_device
*dev
)
788 mutex_init(&dev
->mode_config
.mutex
);
789 INIT_LIST_HEAD(&dev
->mode_config
.fb_list
);
790 INIT_LIST_HEAD(&dev
->mode_config
.fb_kernel_list
);
791 INIT_LIST_HEAD(&dev
->mode_config
.crtc_list
);
792 INIT_LIST_HEAD(&dev
->mode_config
.connector_list
);
793 INIT_LIST_HEAD(&dev
->mode_config
.encoder_list
);
794 INIT_LIST_HEAD(&dev
->mode_config
.property_list
);
795 INIT_LIST_HEAD(&dev
->mode_config
.property_blob_list
);
796 idr_init(&dev
->mode_config
.crtc_idr
);
798 mutex_lock(&dev
->mode_config
.mutex
);
799 drm_mode_create_standard_connector_properties(dev
);
800 mutex_unlock(&dev
->mode_config
.mutex
);
802 /* Just to be sure */
803 dev
->mode_config
.num_fb
= 0;
804 dev
->mode_config
.num_connector
= 0;
805 dev
->mode_config
.num_crtc
= 0;
806 dev
->mode_config
.num_encoder
= 0;
807 dev
->mode_config
.hotplug_counter
= 0;
809 EXPORT_SYMBOL(drm_mode_config_init
);
811 int drm_mode_group_init(struct drm_device
*dev
, struct drm_mode_group
*group
)
813 uint32_t total_objects
= 0;
815 total_objects
+= dev
->mode_config
.num_crtc
;
816 total_objects
+= dev
->mode_config
.num_connector
;
817 total_objects
+= dev
->mode_config
.num_encoder
;
819 if (total_objects
== 0)
822 group
->id_list
= kzalloc(total_objects
* sizeof(uint32_t), GFP_KERNEL
);
826 group
->num_crtcs
= 0;
827 group
->num_connectors
= 0;
828 group
->num_encoders
= 0;
832 int drm_mode_group_init_legacy_group(struct drm_device
*dev
,
833 struct drm_mode_group
*group
)
835 struct drm_crtc
*crtc
;
836 struct drm_encoder
*encoder
;
837 struct drm_connector
*connector
;
840 if ((ret
= drm_mode_group_init(dev
, group
)))
843 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
, head
)
844 group
->id_list
[group
->num_crtcs
++] = crtc
->base
.id
;
846 list_for_each_entry(encoder
, &dev
->mode_config
.encoder_list
, head
)
847 group
->id_list
[group
->num_crtcs
+ group
->num_encoders
++] =
850 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
)
851 group
->id_list
[group
->num_crtcs
+ group
->num_encoders
+
852 group
->num_connectors
++] = connector
->base
.id
;
858 * drm_mode_config_cleanup - free up DRM mode_config info
862 * Caller must hold mode config lock.
864 * Free up all the connectors and CRTCs associated with this DRM device, then
865 * free up the framebuffers and associated buffer objects.
867 * FIXME: cleanup any dangling user buffer objects too
869 void drm_mode_config_cleanup(struct drm_device
*dev
)
871 struct drm_connector
*connector
, *ot
;
872 struct drm_crtc
*crtc
, *ct
;
873 struct drm_encoder
*encoder
, *enct
;
874 struct drm_framebuffer
*fb
, *fbt
;
875 struct drm_property
*property
, *pt
;
877 list_for_each_entry_safe(encoder
, enct
, &dev
->mode_config
.encoder_list
,
879 encoder
->funcs
->destroy(encoder
);
882 list_for_each_entry_safe(connector
, ot
,
883 &dev
->mode_config
.connector_list
, head
) {
884 connector
->funcs
->destroy(connector
);
887 list_for_each_entry_safe(property
, pt
, &dev
->mode_config
.property_list
,
889 drm_property_destroy(dev
, property
);
892 list_for_each_entry_safe(fb
, fbt
, &dev
->mode_config
.fb_list
, head
) {
893 fb
->funcs
->destroy(fb
);
896 list_for_each_entry_safe(crtc
, ct
, &dev
->mode_config
.crtc_list
, head
) {
897 crtc
->funcs
->destroy(crtc
);
901 EXPORT_SYMBOL(drm_mode_config_cleanup
);
903 int drm_mode_hotplug_ioctl(struct drm_device
*dev
,
904 void *data
, struct drm_file
*file_priv
)
906 struct drm_mode_hotplug
*arg
= data
;
908 arg
->counter
= dev
->mode_config
.hotplug_counter
;
914 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
915 * @out: drm_mode_modeinfo struct to return to the user
916 * @in: drm_display_mode to use
921 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
924 void drm_crtc_convert_to_umode(struct drm_mode_modeinfo
*out
,
925 struct drm_display_mode
*in
)
927 out
->clock
= in
->clock
;
928 out
->hdisplay
= in
->hdisplay
;
929 out
->hsync_start
= in
->hsync_start
;
930 out
->hsync_end
= in
->hsync_end
;
931 out
->htotal
= in
->htotal
;
932 out
->hskew
= in
->hskew
;
933 out
->vdisplay
= in
->vdisplay
;
934 out
->vsync_start
= in
->vsync_start
;
935 out
->vsync_end
= in
->vsync_end
;
936 out
->vtotal
= in
->vtotal
;
937 out
->vscan
= in
->vscan
;
938 out
->vrefresh
= in
->vrefresh
;
939 out
->flags
= in
->flags
;
940 out
->type
= in
->type
;
941 strncpy(out
->name
, in
->name
, DRM_DISPLAY_MODE_LEN
);
942 out
->name
[DRM_DISPLAY_MODE_LEN
-1] = 0;
946 * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
947 * @out: drm_display_mode to return to the user
948 * @in: drm_mode_modeinfo to use
953 * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
956 void drm_crtc_convert_umode(struct drm_display_mode
*out
,
957 struct drm_mode_modeinfo
*in
)
959 out
->clock
= in
->clock
;
960 out
->hdisplay
= in
->hdisplay
;
961 out
->hsync_start
= in
->hsync_start
;
962 out
->hsync_end
= in
->hsync_end
;
963 out
->htotal
= in
->htotal
;
964 out
->hskew
= in
->hskew
;
965 out
->vdisplay
= in
->vdisplay
;
966 out
->vsync_start
= in
->vsync_start
;
967 out
->vsync_end
= in
->vsync_end
;
968 out
->vtotal
= in
->vtotal
;
969 out
->vscan
= in
->vscan
;
970 out
->vrefresh
= in
->vrefresh
;
971 out
->flags
= in
->flags
;
972 out
->type
= in
->type
;
973 strncpy(out
->name
, in
->name
, DRM_DISPLAY_MODE_LEN
);
974 out
->name
[DRM_DISPLAY_MODE_LEN
-1] = 0;
978 * drm_mode_getresources - get graphics configuration
979 * @inode: inode from the ioctl
980 * @filp: file * from the ioctl
981 * @cmd: cmd from ioctl
982 * @arg: arg from ioctl
985 * Takes mode config lock.
987 * Construct a set of configuration description structures and return
988 * them to the user, including CRTC, connector and framebuffer configuration.
990 * Called by the user via ioctl.
993 * Zero on success, errno on failure.
995 int drm_mode_getresources(struct drm_device
*dev
, void *data
,
996 struct drm_file
*file_priv
)
998 struct drm_mode_card_res
*card_res
= data
;
999 struct list_head
*lh
;
1000 struct drm_framebuffer
*fb
;
1001 struct drm_connector
*connector
;
1002 struct drm_crtc
*crtc
;
1003 struct drm_encoder
*encoder
;
1005 int connector_count
= 0;
1008 int encoder_count
= 0;
1010 uint32_t __user
*fb_id
;
1011 uint32_t __user
*crtc_id
;
1012 uint32_t __user
*connector_id
;
1013 uint32_t __user
*encoder_id
;
1014 struct drm_mode_group
*mode_group
;
1016 mutex_lock(&dev
->mode_config
.mutex
);
1019 * For the non-control nodes we need to limit the list of resources
1020 * by IDs in the group list for this node
1022 list_for_each(lh
, &file_priv
->fbs
)
1025 mode_group
= &file_priv
->master
->minor
->mode_group
;
1026 if (file_priv
->master
->minor
->type
== DRM_MINOR_CONTROL
) {
1028 list_for_each(lh
, &dev
->mode_config
.crtc_list
)
1031 list_for_each(lh
, &dev
->mode_config
.connector_list
)
1034 list_for_each(lh
, &dev
->mode_config
.encoder_list
)
1038 crtc_count
= mode_group
->num_crtcs
;
1039 connector_count
= mode_group
->num_connectors
;
1040 encoder_count
= mode_group
->num_encoders
;
1043 card_res
->max_height
= dev
->mode_config
.max_height
;
1044 card_res
->min_height
= dev
->mode_config
.min_height
;
1045 card_res
->max_width
= dev
->mode_config
.max_width
;
1046 card_res
->min_width
= dev
->mode_config
.min_width
;
1048 /* handle this in 4 parts */
1050 if (card_res
->count_fbs
>= fb_count
) {
1052 fb_id
= (uint32_t __user
*)(unsigned long)card_res
->fb_id_ptr
;
1053 list_for_each_entry(fb
, &file_priv
->fbs
, head
) {
1054 if (put_user(fb
->base
.id
, fb_id
+ copied
)) {
1061 card_res
->count_fbs
= fb_count
;
1064 if (card_res
->count_crtcs
>= crtc_count
) {
1066 crtc_id
= (uint32_t __user
*)(unsigned long)card_res
->crtc_id_ptr
;
1067 if (file_priv
->master
->minor
->type
== DRM_MINOR_CONTROL
) {
1068 list_for_each_entry(crtc
, &dev
->mode_config
.crtc_list
,
1070 DRM_DEBUG("CRTC ID is %d\n", crtc
->base
.id
);
1071 if (put_user(crtc
->base
.id
, crtc_id
+ copied
)) {
1078 for (i
= 0; i
< mode_group
->num_crtcs
; i
++) {
1079 if (put_user(mode_group
->id_list
[i
],
1080 crtc_id
+ copied
)) {
1088 card_res
->count_crtcs
= crtc_count
;
1091 if (card_res
->count_encoders
>= encoder_count
) {
1093 encoder_id
= (uint32_t __user
*)(unsigned long)card_res
->encoder_id_ptr
;
1094 if (file_priv
->master
->minor
->type
== DRM_MINOR_CONTROL
) {
1095 list_for_each_entry(encoder
,
1096 &dev
->mode_config
.encoder_list
,
1098 DRM_DEBUG("ENCODER ID is %d\n",
1100 if (put_user(encoder
->base
.id
, encoder_id
+
1108 for (i
= mode_group
->num_crtcs
; i
< mode_group
->num_crtcs
+ mode_group
->num_encoders
; i
++) {
1109 if (put_user(mode_group
->id_list
[i
],
1110 encoder_id
+ copied
)) {
1119 card_res
->count_encoders
= encoder_count
;
1122 if (card_res
->count_connectors
>= connector_count
) {
1124 connector_id
= (uint32_t __user
*)(unsigned long)card_res
->connector_id_ptr
;
1125 if (file_priv
->master
->minor
->type
== DRM_MINOR_CONTROL
) {
1126 list_for_each_entry(connector
,
1127 &dev
->mode_config
.connector_list
,
1129 DRM_DEBUG("CONNECTOR ID is %d\n",
1130 connector
->base
.id
);
1131 if (put_user(connector
->base
.id
,
1132 connector_id
+ copied
)) {
1139 int start
= mode_group
->num_crtcs
+
1140 mode_group
->num_encoders
;
1141 for (i
= start
; i
< start
+ mode_group
->num_connectors
; i
++) {
1142 if (put_user(mode_group
->id_list
[i
],
1143 connector_id
+ copied
)) {
1151 card_res
->count_connectors
= connector_count
;
1153 DRM_DEBUG("Counted %d %d %d\n", card_res
->count_crtcs
,
1154 card_res
->count_connectors
, card_res
->count_encoders
);
1157 mutex_unlock(&dev
->mode_config
.mutex
);
1162 * drm_mode_getcrtc - get CRTC configuration
1163 * @inode: inode from the ioctl
1164 * @filp: file * from the ioctl
1165 * @cmd: cmd from ioctl
1166 * @arg: arg from ioctl
1171 * Construct a CRTC configuration structure to return to the user.
1173 * Called by the user via ioctl.
1176 * Zero on success, errno on failure.
1178 int drm_mode_getcrtc(struct drm_device
*dev
,
1179 void *data
, struct drm_file
*file_priv
)
1181 struct drm_mode_crtc
*crtc_resp
= data
;
1182 struct drm_crtc
*crtc
;
1183 struct drm_mode_object
*obj
;
1186 mutex_lock(&dev
->mode_config
.mutex
);
1188 obj
= drm_mode_object_find(dev
, crtc_resp
->crtc_id
,
1189 DRM_MODE_OBJECT_CRTC
);
1194 crtc
= obj_to_crtc(obj
);
1196 crtc_resp
->x
= crtc
->x
;
1197 crtc_resp
->y
= crtc
->y
;
1198 crtc_resp
->gamma_size
= crtc
->gamma_size
;
1200 crtc_resp
->fb_id
= crtc
->fb
->base
.id
;
1202 crtc_resp
->fb_id
= 0;
1204 if (crtc
->enabled
) {
1206 drm_crtc_convert_to_umode(&crtc_resp
->mode
, &crtc
->mode
);
1207 crtc_resp
->mode_valid
= 1;
1210 crtc_resp
->mode_valid
= 0;
1214 mutex_unlock(&dev
->mode_config
.mutex
);
1219 * drm_mode_getconnector - get connector configuration
1220 * @inode: inode from the ioctl
1221 * @filp: file * from the ioctl
1222 * @cmd: cmd from ioctl
1223 * @arg: arg from ioctl
1228 * Construct a connector configuration structure to return to the user.
1230 * Called by the user via ioctl.
1233 * Zero on success, errno on failure.
1235 int drm_mode_getconnector(struct drm_device
*dev
, void *data
,
1236 struct drm_file
*file_priv
)
1238 struct drm_mode_get_connector
*out_resp
= data
;
1239 struct drm_mode_object
*obj
;
1240 struct drm_connector
*connector
;
1241 struct drm_display_mode
*mode
;
1243 int props_count
= 0;
1244 int encoders_count
= 0;
1248 struct drm_mode_modeinfo u_mode
;
1249 struct drm_mode_modeinfo __user
*mode_ptr
;
1250 uint32_t __user
*prop_ptr
;
1251 uint64_t __user
*prop_values
;
1252 uint32_t __user
*encoder_ptr
;
1254 memset(&u_mode
, 0, sizeof(struct drm_mode_modeinfo
));
1256 DRM_DEBUG("connector id %d:\n", out_resp
->connector_id
);
1258 mutex_lock(&dev
->mode_config
.mutex
);
1260 obj
= drm_mode_object_find(dev
, out_resp
->connector_id
,
1261 DRM_MODE_OBJECT_CONNECTOR
);
1266 connector
= obj_to_connector(obj
);
1268 for (i
= 0; i
< DRM_CONNECTOR_MAX_PROPERTY
; i
++) {
1269 if (connector
->property_ids
[i
] != 0) {
1274 for (i
= 0; i
< DRM_CONNECTOR_MAX_ENCODER
; i
++) {
1275 if (connector
->encoder_ids
[i
] != 0) {
1280 if (out_resp
->count_modes
== 0) {
1281 connector
->funcs
->fill_modes(connector
,
1282 dev
->mode_config
.max_width
,
1283 dev
->mode_config
.max_height
);
1286 /* delayed so we get modes regardless of pre-fill_modes state */
1287 list_for_each_entry(mode
, &connector
->modes
, head
)
1290 out_resp
->connector_id
= connector
->base
.id
;
1291 out_resp
->connector_type
= connector
->connector_type
;
1292 out_resp
->connector_type_id
= connector
->connector_type_id
;
1293 out_resp
->mm_width
= connector
->display_info
.width_mm
;
1294 out_resp
->mm_height
= connector
->display_info
.height_mm
;
1295 out_resp
->subpixel
= connector
->display_info
.subpixel_order
;
1296 out_resp
->connection
= connector
->status
;
1297 if (connector
->encoder
)
1298 out_resp
->encoder_id
= connector
->encoder
->base
.id
;
1300 out_resp
->encoder_id
= 0;
1303 * This ioctl is called twice, once to determine how much space is
1304 * needed, and the 2nd time to fill it.
1306 if ((out_resp
->count_modes
>= mode_count
) && mode_count
) {
1308 mode_ptr
= (struct drm_mode_modeinfo
*)(unsigned long)out_resp
->modes_ptr
;
1309 list_for_each_entry(mode
, &connector
->modes
, head
) {
1310 drm_crtc_convert_to_umode(&u_mode
, mode
);
1311 if (copy_to_user(mode_ptr
+ copied
,
1312 &u_mode
, sizeof(u_mode
))) {
1319 out_resp
->count_modes
= mode_count
;
1321 if ((out_resp
->count_props
>= props_count
) && props_count
) {
1323 prop_ptr
= (uint32_t *)(unsigned long)(out_resp
->props_ptr
);
1324 prop_values
= (uint64_t *)(unsigned long)(out_resp
->prop_values_ptr
);
1325 for (i
= 0; i
< DRM_CONNECTOR_MAX_PROPERTY
; i
++) {
1326 if (connector
->property_ids
[i
] != 0) {
1327 if (put_user(connector
->property_ids
[i
],
1328 prop_ptr
+ copied
)) {
1333 if (put_user(connector
->property_values
[i
],
1334 prop_values
+ copied
)) {
1342 out_resp
->count_props
= props_count
;
1344 if ((out_resp
->count_encoders
>= encoders_count
) && encoders_count
) {
1346 encoder_ptr
= (uint32_t *)(unsigned long)(out_resp
->encoders_ptr
);
1347 for (i
= 0; i
< DRM_CONNECTOR_MAX_ENCODER
; i
++) {
1348 if (connector
->encoder_ids
[i
] != 0) {
1349 if (put_user(connector
->encoder_ids
[i
],
1350 encoder_ptr
+ copied
)) {
1358 out_resp
->count_encoders
= encoders_count
;
1361 mutex_unlock(&dev
->mode_config
.mutex
);
1365 int drm_mode_getencoder(struct drm_device
*dev
, void *data
,
1366 struct drm_file
*file_priv
)
1368 struct drm_mode_get_encoder
*enc_resp
= data
;
1369 struct drm_mode_object
*obj
;
1370 struct drm_encoder
*encoder
;
1373 mutex_lock(&dev
->mode_config
.mutex
);
1374 obj
= drm_mode_object_find(dev
, enc_resp
->encoder_id
,
1375 DRM_MODE_OBJECT_ENCODER
);
1380 encoder
= obj_to_encoder(obj
);
1383 enc_resp
->crtc_id
= encoder
->crtc
->base
.id
;
1385 enc_resp
->crtc_id
= 0;
1386 enc_resp
->encoder_type
= encoder
->encoder_type
;
1387 enc_resp
->encoder_id
= encoder
->base
.id
;
1388 enc_resp
->possible_crtcs
= encoder
->possible_crtcs
;
1389 enc_resp
->possible_clones
= encoder
->possible_clones
;
1392 mutex_unlock(&dev
->mode_config
.mutex
);
1397 * drm_mode_setcrtc - set CRTC configuration
1398 * @inode: inode from the ioctl
1399 * @filp: file * from the ioctl
1400 * @cmd: cmd from ioctl
1401 * @arg: arg from ioctl
1406 * Build a new CRTC configuration based on user request.
1408 * Called by the user via ioctl.
1411 * Zero on success, errno on failure.
1413 int drm_mode_setcrtc(struct drm_device
*dev
, void *data
,
1414 struct drm_file
*file_priv
)
1416 struct drm_mode_config
*config
= &dev
->mode_config
;
1417 struct drm_mode_crtc
*crtc_req
= data
;
1418 struct drm_mode_object
*obj
;
1419 struct drm_crtc
*crtc
, *crtcfb
;
1420 struct drm_connector
**connector_set
= NULL
, *connector
;
1421 struct drm_framebuffer
*fb
= NULL
;
1422 struct drm_display_mode
*mode
= NULL
;
1423 struct drm_mode_set set
;
1424 uint32_t __user
*set_connectors_ptr
;
1428 mutex_lock(&dev
->mode_config
.mutex
);
1429 obj
= drm_mode_object_find(dev
, crtc_req
->crtc_id
,
1430 DRM_MODE_OBJECT_CRTC
);
1432 DRM_DEBUG("Unknown CRTC ID %d\n", crtc_req
->crtc_id
);
1436 crtc
= obj_to_crtc(obj
);
1438 if (crtc_req
->mode_valid
) {
1439 /* If we have a mode we need a framebuffer. */
1440 /* If we pass -1, set the mode with the currently bound fb */
1441 if (crtc_req
->fb_id
== -1) {
1442 list_for_each_entry(crtcfb
,
1443 &dev
->mode_config
.crtc_list
, head
) {
1444 if (crtcfb
== crtc
) {
1445 DRM_DEBUG("Using current fb for setmode\n");
1450 obj
= drm_mode_object_find(dev
, crtc_req
->fb_id
,
1451 DRM_MODE_OBJECT_FB
);
1453 DRM_DEBUG("Unknown FB ID%d\n", crtc_req
->fb_id
);
1457 fb
= obj_to_fb(obj
);
1460 mode
= drm_mode_create(dev
);
1461 drm_crtc_convert_umode(mode
, &crtc_req
->mode
);
1462 drm_mode_set_crtcinfo(mode
, CRTC_INTERLACE_HALVE_V
);
1465 if (crtc_req
->count_connectors
== 0 && mode
) {
1466 DRM_DEBUG("Count connectors is 0 but mode set\n");
1471 if (crtc_req
->count_connectors
> 0 && !mode
&& !fb
) {
1472 DRM_DEBUG("Count connectors is %d but no mode or fb set\n",
1473 crtc_req
->count_connectors
);
1478 if (crtc_req
->count_connectors
> 0) {
1481 /* Avoid unbounded kernel memory allocation */
1482 if (crtc_req
->count_connectors
> config
->num_connector
) {
1487 connector_set
= kmalloc(crtc_req
->count_connectors
*
1488 sizeof(struct drm_connector
*),
1490 if (!connector_set
) {
1495 for (i
= 0; i
< crtc_req
->count_connectors
; i
++) {
1496 set_connectors_ptr
= (uint32_t *)(unsigned long)crtc_req
->set_connectors_ptr
;
1497 if (get_user(out_id
, &set_connectors_ptr
[i
])) {
1502 obj
= drm_mode_object_find(dev
, out_id
,
1503 DRM_MODE_OBJECT_CONNECTOR
);
1505 DRM_DEBUG("Connector id %d unknown\n", out_id
);
1509 connector
= obj_to_connector(obj
);
1511 connector_set
[i
] = connector
;
1516 set
.x
= crtc_req
->x
;
1517 set
.y
= crtc_req
->y
;
1519 set
.connectors
= connector_set
;
1520 set
.num_connectors
= crtc_req
->count_connectors
;
1522 ret
= crtc
->funcs
->set_config(&set
);
1525 kfree(connector_set
);
1526 mutex_unlock(&dev
->mode_config
.mutex
);
1530 int drm_mode_cursor_ioctl(struct drm_device
*dev
,
1531 void *data
, struct drm_file
*file_priv
)
1533 struct drm_mode_cursor
*req
= data
;
1534 struct drm_mode_object
*obj
;
1535 struct drm_crtc
*crtc
;
1541 DRM_ERROR("no operation set\n");
1545 mutex_lock(&dev
->mode_config
.mutex
);
1546 obj
= drm_mode_object_find(dev
, req
->crtc
, DRM_MODE_OBJECT_CRTC
);
1548 DRM_DEBUG("Unknown CRTC ID %d\n", req
->crtc
);
1552 crtc
= obj_to_crtc(obj
);
1554 if (req
->flags
& DRM_MODE_CURSOR_BO
) {
1555 if (!crtc
->funcs
->cursor_set
) {
1556 DRM_ERROR("crtc does not support cursor\n");
1560 /* Turns off the cursor if handle is 0 */
1561 ret
= crtc
->funcs
->cursor_set(crtc
, file_priv
, req
->handle
,
1562 req
->width
, req
->height
);
1565 if (req
->flags
& DRM_MODE_CURSOR_MOVE
) {
1566 if (crtc
->funcs
->cursor_move
) {
1567 ret
= crtc
->funcs
->cursor_move(crtc
, req
->x
, req
->y
);
1569 DRM_ERROR("crtc does not support cursor\n");
1575 mutex_unlock(&dev
->mode_config
.mutex
);
1580 * drm_mode_addfb - add an FB to the graphics configuration
1581 * @inode: inode from the ioctl
1582 * @filp: file * from the ioctl
1583 * @cmd: cmd from ioctl
1584 * @arg: arg from ioctl
1587 * Takes mode config lock.
1589 * Add a new FB to the specified CRTC, given a user request.
1591 * Called by the user via ioctl.
1594 * Zero on success, errno on failure.
1596 int drm_mode_addfb(struct drm_device
*dev
,
1597 void *data
, struct drm_file
*file_priv
)
1599 struct drm_mode_fb_cmd
*r
= data
;
1600 struct drm_mode_config
*config
= &dev
->mode_config
;
1601 struct drm_framebuffer
*fb
;
1604 if ((config
->min_width
> r
->width
) || (r
->width
> config
->max_width
)) {
1605 DRM_ERROR("mode new framebuffer width not within limits\n");
1608 if ((config
->min_height
> r
->height
) || (r
->height
> config
->max_height
)) {
1609 DRM_ERROR("mode new framebuffer height not within limits\n");
1613 mutex_lock(&dev
->mode_config
.mutex
);
1615 /* TODO check buffer is sufficently large */
1616 /* TODO setup destructor callback */
1618 fb
= dev
->mode_config
.funcs
->fb_create(dev
, file_priv
, r
);
1620 DRM_ERROR("could not create framebuffer\n");
1625 r
->buffer_id
= fb
->base
.id
;
1626 list_add(&fb
->filp_head
, &file_priv
->fbs
);
1629 mutex_unlock(&dev
->mode_config
.mutex
);
1634 * drm_mode_rmfb - remove an FB from the configuration
1635 * @inode: inode from the ioctl
1636 * @filp: file * from the ioctl
1637 * @cmd: cmd from ioctl
1638 * @arg: arg from ioctl
1641 * Takes mode config lock.
1643 * Remove the FB specified by the user.
1645 * Called by the user via ioctl.
1648 * Zero on success, errno on failure.
1650 int drm_mode_rmfb(struct drm_device
*dev
,
1651 void *data
, struct drm_file
*file_priv
)
1653 struct drm_mode_object
*obj
;
1654 struct drm_framebuffer
*fb
= NULL
;
1655 struct drm_framebuffer
*fbl
= NULL
;
1656 uint32_t *id
= data
;
1660 mutex_lock(&dev
->mode_config
.mutex
);
1661 obj
= drm_mode_object_find(dev
, *id
, DRM_MODE_OBJECT_FB
);
1662 /* TODO check that we realy get a framebuffer back. */
1664 DRM_ERROR("mode invalid framebuffer id\n");
1668 fb
= obj_to_fb(obj
);
1670 list_for_each_entry(fbl
, &file_priv
->fbs
, filp_head
)
1675 DRM_ERROR("tried to remove a fb that we didn't own\n");
1680 /* TODO release all crtc connected to the framebuffer */
1681 /* TODO unhock the destructor from the buffer object */
1683 list_del(&fb
->filp_head
);
1684 fb
->funcs
->destroy(fb
);
1687 mutex_unlock(&dev
->mode_config
.mutex
);
1692 * drm_mode_getfb - get FB info
1693 * @inode: inode from the ioctl
1694 * @filp: file * from the ioctl
1695 * @cmd: cmd from ioctl
1696 * @arg: arg from ioctl
1701 * Lookup the FB given its ID and return info about it.
1703 * Called by the user via ioctl.
1706 * Zero on success, errno on failure.
1708 int drm_mode_getfb(struct drm_device
*dev
,
1709 void *data
, struct drm_file
*file_priv
)
1711 struct drm_mode_fb_cmd
*r
= data
;
1712 struct drm_mode_object
*obj
;
1713 struct drm_framebuffer
*fb
;
1716 mutex_lock(&dev
->mode_config
.mutex
);
1717 obj
= drm_mode_object_find(dev
, r
->buffer_id
, DRM_MODE_OBJECT_FB
);
1719 DRM_ERROR("invalid framebuffer id\n");
1723 fb
= obj_to_fb(obj
);
1725 r
->height
= fb
->height
;
1726 r
->width
= fb
->width
;
1727 r
->depth
= fb
->depth
;
1728 r
->bpp
= fb
->bits_per_pixel
;
1729 r
->pitch
= fb
->pitch
;
1730 fb
->funcs
->create_handle(fb
, file_priv
, &r
->handle
);
1733 mutex_unlock(&dev
->mode_config
.mutex
);
1738 * drm_fb_release - remove and free the FBs on this file
1739 * @filp: file * from the ioctl
1742 * Takes mode config lock.
1744 * Destroy all the FBs associated with @filp.
1746 * Called by the user via ioctl.
1749 * Zero on success, errno on failure.
1751 void drm_fb_release(struct file
*filp
)
1753 struct drm_file
*priv
= filp
->private_data
;
1754 struct drm_device
*dev
= priv
->minor
->dev
;
1755 struct drm_framebuffer
*fb
, *tfb
;
1757 mutex_lock(&dev
->mode_config
.mutex
);
1758 list_for_each_entry_safe(fb
, tfb
, &priv
->fbs
, filp_head
) {
1759 list_del(&fb
->filp_head
);
1760 fb
->funcs
->destroy(fb
);
1762 mutex_unlock(&dev
->mode_config
.mutex
);
1766 * drm_mode_attachmode - add a mode to the user mode list
1768 * @connector: connector to add the mode to
1769 * @mode: mode to add
1771 * Add @mode to @connector's user mode list.
1773 static int drm_mode_attachmode(struct drm_device
*dev
,
1774 struct drm_connector
*connector
,
1775 struct drm_display_mode
*mode
)
1779 list_add_tail(&mode
->head
, &connector
->user_modes
);
1783 int drm_mode_attachmode_crtc(struct drm_device
*dev
, struct drm_crtc
*crtc
,
1784 struct drm_display_mode
*mode
)
1786 struct drm_connector
*connector
;
1788 struct drm_display_mode
*dup_mode
;
1790 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
1791 if (!connector
->encoder
)
1793 if (connector
->encoder
->crtc
== crtc
) {
1795 dup_mode
= drm_mode_duplicate(dev
, mode
);
1798 ret
= drm_mode_attachmode(dev
, connector
, dup_mode
);
1806 EXPORT_SYMBOL(drm_mode_attachmode_crtc
);
1808 static int drm_mode_detachmode(struct drm_device
*dev
,
1809 struct drm_connector
*connector
,
1810 struct drm_display_mode
*mode
)
1814 struct drm_display_mode
*match_mode
, *t
;
1816 list_for_each_entry_safe(match_mode
, t
, &connector
->user_modes
, head
) {
1817 if (drm_mode_equal(match_mode
, mode
)) {
1818 list_del(&match_mode
->head
);
1819 drm_mode_destroy(dev
, match_mode
);
1831 int drm_mode_detachmode_crtc(struct drm_device
*dev
, struct drm_display_mode
*mode
)
1833 struct drm_connector
*connector
;
1835 list_for_each_entry(connector
, &dev
->mode_config
.connector_list
, head
) {
1836 drm_mode_detachmode(dev
, connector
, mode
);
1840 EXPORT_SYMBOL(drm_mode_detachmode_crtc
);
1843 * drm_fb_attachmode - Attach a user mode to an connector
1844 * @inode: inode from the ioctl
1845 * @filp: file * from the ioctl
1846 * @cmd: cmd from ioctl
1847 * @arg: arg from ioctl
1849 * This attaches a user specified mode to an connector.
1850 * Called by the user via ioctl.
1853 * Zero on success, errno on failure.
1855 int drm_mode_attachmode_ioctl(struct drm_device
*dev
,
1856 void *data
, struct drm_file
*file_priv
)
1858 struct drm_mode_mode_cmd
*mode_cmd
= data
;
1859 struct drm_connector
*connector
;
1860 struct drm_display_mode
*mode
;
1861 struct drm_mode_object
*obj
;
1862 struct drm_mode_modeinfo
*umode
= &mode_cmd
->mode
;
1865 mutex_lock(&dev
->mode_config
.mutex
);
1867 obj
= drm_mode_object_find(dev
, mode_cmd
->connector_id
, DRM_MODE_OBJECT_CONNECTOR
);
1872 connector
= obj_to_connector(obj
);
1874 mode
= drm_mode_create(dev
);
1880 drm_crtc_convert_umode(mode
, umode
);
1882 ret
= drm_mode_attachmode(dev
, connector
, mode
);
1884 mutex_unlock(&dev
->mode_config
.mutex
);
1890 * drm_fb_detachmode - Detach a user specified mode from an connector
1891 * @inode: inode from the ioctl
1892 * @filp: file * from the ioctl
1893 * @cmd: cmd from ioctl
1894 * @arg: arg from ioctl
1896 * Called by the user via ioctl.
1899 * Zero on success, errno on failure.
1901 int drm_mode_detachmode_ioctl(struct drm_device
*dev
,
1902 void *data
, struct drm_file
*file_priv
)
1904 struct drm_mode_object
*obj
;
1905 struct drm_mode_mode_cmd
*mode_cmd
= data
;
1906 struct drm_connector
*connector
;
1907 struct drm_display_mode mode
;
1908 struct drm_mode_modeinfo
*umode
= &mode_cmd
->mode
;
1911 mutex_lock(&dev
->mode_config
.mutex
);
1913 obj
= drm_mode_object_find(dev
, mode_cmd
->connector_id
, DRM_MODE_OBJECT_CONNECTOR
);
1918 connector
= obj_to_connector(obj
);
1920 drm_crtc_convert_umode(&mode
, umode
);
1921 ret
= drm_mode_detachmode(dev
, connector
, &mode
);
1923 mutex_unlock(&dev
->mode_config
.mutex
);
1927 struct drm_property
*drm_property_create(struct drm_device
*dev
, int flags
,
1928 const char *name
, int num_values
)
1930 struct drm_property
*property
= NULL
;
1932 property
= kzalloc(sizeof(struct drm_property
), GFP_KERNEL
);
1937 property
->values
= kzalloc(sizeof(uint64_t)*num_values
, GFP_KERNEL
);
1938 if (!property
->values
)
1942 drm_mode_object_get(dev
, &property
->base
, DRM_MODE_OBJECT_PROPERTY
);
1943 property
->flags
= flags
;
1944 property
->num_values
= num_values
;
1945 INIT_LIST_HEAD(&property
->enum_blob_list
);
1948 strncpy(property
->name
, name
, DRM_PROP_NAME_LEN
);
1950 list_add_tail(&property
->head
, &dev
->mode_config
.property_list
);
1956 EXPORT_SYMBOL(drm_property_create
);
1958 int drm_property_add_enum(struct drm_property
*property
, int index
,
1959 uint64_t value
, const char *name
)
1961 struct drm_property_enum
*prop_enum
;
1963 if (!(property
->flags
& DRM_MODE_PROP_ENUM
))
1966 if (!list_empty(&property
->enum_blob_list
)) {
1967 list_for_each_entry(prop_enum
, &property
->enum_blob_list
, head
) {
1968 if (prop_enum
->value
== value
) {
1969 strncpy(prop_enum
->name
, name
, DRM_PROP_NAME_LEN
);
1970 prop_enum
->name
[DRM_PROP_NAME_LEN
-1] = '\0';
1976 prop_enum
= kzalloc(sizeof(struct drm_property_enum
), GFP_KERNEL
);
1980 strncpy(prop_enum
->name
, name
, DRM_PROP_NAME_LEN
);
1981 prop_enum
->name
[DRM_PROP_NAME_LEN
-1] = '\0';
1982 prop_enum
->value
= value
;
1984 property
->values
[index
] = value
;
1985 list_add_tail(&prop_enum
->head
, &property
->enum_blob_list
);
1988 EXPORT_SYMBOL(drm_property_add_enum
);
1990 void drm_property_destroy(struct drm_device
*dev
, struct drm_property
*property
)
1992 struct drm_property_enum
*prop_enum
, *pt
;
1994 list_for_each_entry_safe(prop_enum
, pt
, &property
->enum_blob_list
, head
) {
1995 list_del(&prop_enum
->head
);
1999 if (property
->num_values
)
2000 kfree(property
->values
);
2001 drm_mode_object_put(dev
, &property
->base
);
2002 list_del(&property
->head
);
2005 EXPORT_SYMBOL(drm_property_destroy
);
2007 int drm_connector_attach_property(struct drm_connector
*connector
,
2008 struct drm_property
*property
, uint64_t init_val
)
2012 for (i
= 0; i
< DRM_CONNECTOR_MAX_PROPERTY
; i
++) {
2013 if (connector
->property_ids
[i
] == 0) {
2014 connector
->property_ids
[i
] = property
->base
.id
;
2015 connector
->property_values
[i
] = init_val
;
2020 if (i
== DRM_CONNECTOR_MAX_PROPERTY
)
2024 EXPORT_SYMBOL(drm_connector_attach_property
);
2026 int drm_connector_property_set_value(struct drm_connector
*connector
,
2027 struct drm_property
*property
, uint64_t value
)
2031 for (i
= 0; i
< DRM_CONNECTOR_MAX_PROPERTY
; i
++) {
2032 if (connector
->property_ids
[i
] == property
->base
.id
) {
2033 connector
->property_values
[i
] = value
;
2038 if (i
== DRM_CONNECTOR_MAX_PROPERTY
)
2042 EXPORT_SYMBOL(drm_connector_property_set_value
);
2044 int drm_connector_property_get_value(struct drm_connector
*connector
,
2045 struct drm_property
*property
, uint64_t *val
)
2049 for (i
= 0; i
< DRM_CONNECTOR_MAX_PROPERTY
; i
++) {
2050 if (connector
->property_ids
[i
] == property
->base
.id
) {
2051 *val
= connector
->property_values
[i
];
2056 if (i
== DRM_CONNECTOR_MAX_PROPERTY
)
2060 EXPORT_SYMBOL(drm_connector_property_get_value
);
2062 int drm_mode_getproperty_ioctl(struct drm_device
*dev
,
2063 void *data
, struct drm_file
*file_priv
)
2065 struct drm_mode_object
*obj
;
2066 struct drm_mode_get_property
*out_resp
= data
;
2067 struct drm_property
*property
;
2070 int value_count
= 0;
2073 struct drm_property_enum
*prop_enum
;
2074 struct drm_mode_property_enum __user
*enum_ptr
;
2075 struct drm_property_blob
*prop_blob
;
2076 uint32_t *blob_id_ptr
;
2077 uint64_t __user
*values_ptr
;
2078 uint32_t __user
*blob_length_ptr
;
2080 mutex_lock(&dev
->mode_config
.mutex
);
2081 obj
= drm_mode_object_find(dev
, out_resp
->prop_id
, DRM_MODE_OBJECT_PROPERTY
);
2086 property
= obj_to_property(obj
);
2088 if (property
->flags
& DRM_MODE_PROP_ENUM
) {
2089 list_for_each_entry(prop_enum
, &property
->enum_blob_list
, head
)
2091 } else if (property
->flags
& DRM_MODE_PROP_BLOB
) {
2092 list_for_each_entry(prop_blob
, &property
->enum_blob_list
, head
)
2096 value_count
= property
->num_values
;
2098 strncpy(out_resp
->name
, property
->name
, DRM_PROP_NAME_LEN
);
2099 out_resp
->name
[DRM_PROP_NAME_LEN
-1] = 0;
2100 out_resp
->flags
= property
->flags
;
2102 if ((out_resp
->count_values
>= value_count
) && value_count
) {
2103 values_ptr
= (uint64_t *)(unsigned long)out_resp
->values_ptr
;
2104 for (i
= 0; i
< value_count
; i
++) {
2105 if (copy_to_user(values_ptr
+ i
, &property
->values
[i
], sizeof(uint64_t))) {
2111 out_resp
->count_values
= value_count
;
2113 if (property
->flags
& DRM_MODE_PROP_ENUM
) {
2114 if ((out_resp
->count_enum_blobs
>= enum_count
) && enum_count
) {
2116 enum_ptr
= (struct drm_mode_property_enum
*)(unsigned long)out_resp
->enum_blob_ptr
;
2117 list_for_each_entry(prop_enum
, &property
->enum_blob_list
, head
) {
2119 if (copy_to_user(&enum_ptr
[copied
].value
, &prop_enum
->value
, sizeof(uint64_t))) {
2124 if (copy_to_user(&enum_ptr
[copied
].name
,
2125 &prop_enum
->name
, DRM_PROP_NAME_LEN
)) {
2132 out_resp
->count_enum_blobs
= enum_count
;
2135 if (property
->flags
& DRM_MODE_PROP_BLOB
) {
2136 if ((out_resp
->count_enum_blobs
>= blob_count
) && blob_count
) {
2138 blob_id_ptr
= (uint32_t *)(unsigned long)out_resp
->enum_blob_ptr
;
2139 blob_length_ptr
= (uint32_t *)(unsigned long)out_resp
->values_ptr
;
2141 list_for_each_entry(prop_blob
, &property
->enum_blob_list
, head
) {
2142 if (put_user(prop_blob
->base
.id
, blob_id_ptr
+ copied
)) {
2147 if (put_user(prop_blob
->length
, blob_length_ptr
+ copied
)) {
2155 out_resp
->count_enum_blobs
= blob_count
;
2158 mutex_unlock(&dev
->mode_config
.mutex
);
2162 static struct drm_property_blob
*drm_property_create_blob(struct drm_device
*dev
, int length
,
2165 struct drm_property_blob
*blob
;
2167 if (!length
|| !data
)
2170 blob
= kzalloc(sizeof(struct drm_property_blob
)+length
, GFP_KERNEL
);
2174 blob
->data
= (void *)((char *)blob
+ sizeof(struct drm_property_blob
));
2175 blob
->length
= length
;
2177 memcpy(blob
->data
, data
, length
);
2179 drm_mode_object_get(dev
, &blob
->base
, DRM_MODE_OBJECT_BLOB
);
2181 list_add_tail(&blob
->head
, &dev
->mode_config
.property_blob_list
);
2185 static void drm_property_destroy_blob(struct drm_device
*dev
,
2186 struct drm_property_blob
*blob
)
2188 drm_mode_object_put(dev
, &blob
->base
);
2189 list_del(&blob
->head
);
2193 int drm_mode_getblob_ioctl(struct drm_device
*dev
,
2194 void *data
, struct drm_file
*file_priv
)
2196 struct drm_mode_object
*obj
;
2197 struct drm_mode_get_blob
*out_resp
= data
;
2198 struct drm_property_blob
*blob
;
2202 mutex_lock(&dev
->mode_config
.mutex
);
2203 obj
= drm_mode_object_find(dev
, out_resp
->blob_id
, DRM_MODE_OBJECT_BLOB
);
2208 blob
= obj_to_blob(obj
);
2210 if (out_resp
->length
== blob
->length
) {
2211 blob_ptr
= (void *)(unsigned long)out_resp
->data
;
2212 if (copy_to_user(blob_ptr
, blob
->data
, blob
->length
)){
2217 out_resp
->length
= blob
->length
;
2220 mutex_unlock(&dev
->mode_config
.mutex
);
2224 int drm_mode_connector_update_edid_property(struct drm_connector
*connector
,
2227 struct drm_device
*dev
= connector
->dev
;
2230 if (connector
->edid_blob_ptr
)
2231 drm_property_destroy_blob(dev
, connector
->edid_blob_ptr
);
2233 /* Delete edid, when there is none. */
2235 connector
->edid_blob_ptr
= NULL
;
2236 ret
= drm_connector_property_set_value(connector
, dev
->mode_config
.edid_property
, 0);
2240 connector
->edid_blob_ptr
= drm_property_create_blob(connector
->dev
, 128, edid
);
2242 ret
= drm_connector_property_set_value(connector
,
2243 dev
->mode_config
.edid_property
,
2244 connector
->edid_blob_ptr
->base
.id
);
2248 EXPORT_SYMBOL(drm_mode_connector_update_edid_property
);
2250 int drm_mode_connector_property_set_ioctl(struct drm_device
*dev
,
2251 void *data
, struct drm_file
*file_priv
)
2253 struct drm_mode_connector_set_property
*out_resp
= data
;
2254 struct drm_mode_object
*obj
;
2255 struct drm_property
*property
;
2256 struct drm_connector
*connector
;
2260 mutex_lock(&dev
->mode_config
.mutex
);
2262 obj
= drm_mode_object_find(dev
, out_resp
->connector_id
, DRM_MODE_OBJECT_CONNECTOR
);
2266 connector
= obj_to_connector(obj
);
2268 for (i
= 0; i
< DRM_CONNECTOR_MAX_PROPERTY
; i
++) {
2269 if (connector
->property_ids
[i
] == out_resp
->prop_id
)
2273 if (i
== DRM_CONNECTOR_MAX_PROPERTY
) {
2277 obj
= drm_mode_object_find(dev
, out_resp
->prop_id
, DRM_MODE_OBJECT_PROPERTY
);
2281 property
= obj_to_property(obj
);
2283 if (property
->flags
& DRM_MODE_PROP_IMMUTABLE
)
2286 if (property
->flags
& DRM_MODE_PROP_RANGE
) {
2287 if (out_resp
->value
< property
->values
[0])
2290 if (out_resp
->value
> property
->values
[1])
2294 for (i
= 0; i
< property
->num_values
; i
++) {
2295 if (property
->values
[i
] == out_resp
->value
) {
2305 if (connector
->funcs
->set_property
)
2306 ret
= connector
->funcs
->set_property(connector
, property
, out_resp
->value
);
2308 /* store the property value if succesful */
2310 drm_connector_property_set_value(connector
, property
, out_resp
->value
);
2312 mutex_unlock(&dev
->mode_config
.mutex
);
2317 int drm_mode_replacefb(struct drm_device
*dev
,
2318 void *data
, struct drm_file
*file_priv
)
2320 struct drm_mode_fb_cmd
*r
= data
;
2321 struct drm_mode_object
*obj
;
2322 struct drm_framebuffer
*fb
;
2324 struct drm_framebuffer
*fbl
= NULL
;
2327 /* right replace the current bo attached to this fb with a new bo */
2328 mutex_lock(&dev
->mode_config
.mutex
);
2329 obj
= drm_mode_object_find(dev
, r
->buffer_id
, DRM_MODE_OBJECT_FB
);
2334 fb
= obj_to_fb(obj
);
2336 list_for_each_entry(fbl
, &file_priv
->fbs
, filp_head
)
2341 DRM_ERROR("tried to replace an fb we didn't own\n");
2346 if (dev
->mode_config
.funcs
->resize_fb
)
2347 ret
= dev
->mode_config
.funcs
->resize_fb(dev
, file_priv
, fb
, r
);
2351 mutex_unlock(&dev
->mode_config
.mutex
);
2356 int drm_mode_connector_attach_encoder(struct drm_connector
*connector
,
2357 struct drm_encoder
*encoder
)
2361 for (i
= 0; i
< DRM_CONNECTOR_MAX_ENCODER
; i
++) {
2362 if (connector
->encoder_ids
[i
] == 0) {
2363 connector
->encoder_ids
[i
] = encoder
->base
.id
;
2369 EXPORT_SYMBOL(drm_mode_connector_attach_encoder
);
2371 void drm_mode_connector_detach_encoder(struct drm_connector
*connector
,
2372 struct drm_encoder
*encoder
)
2375 for (i
= 0; i
< DRM_CONNECTOR_MAX_ENCODER
; i
++) {
2376 if (connector
->encoder_ids
[i
] == encoder
->base
.id
) {
2377 connector
->encoder_ids
[i
] = 0;
2378 if (connector
->encoder
== encoder
)
2379 connector
->encoder
= NULL
;
2384 EXPORT_SYMBOL(drm_mode_connector_detach_encoder
);
2386 bool drm_mode_crtc_set_gamma_size(struct drm_crtc
*crtc
,
2389 crtc
->gamma_size
= gamma_size
;
2391 crtc
->gamma_store
= kzalloc(gamma_size
* sizeof(uint16_t) * 3, GFP_KERNEL
);
2392 if (!crtc
->gamma_store
) {
2393 crtc
->gamma_size
= 0;
2399 EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size
);
2401 int drm_mode_gamma_set_ioctl(struct drm_device
*dev
,
2402 void *data
, struct drm_file
*file_priv
)
2404 struct drm_mode_crtc_lut
*crtc_lut
= data
;
2405 struct drm_mode_object
*obj
;
2406 struct drm_crtc
*crtc
;
2407 void *r_base
, *g_base
, *b_base
;
2411 mutex_lock(&dev
->mode_config
.mutex
);
2412 obj
= drm_mode_object_find(dev
, crtc_lut
->crtc_id
, DRM_MODE_OBJECT_CRTC
);
2417 crtc
= obj_to_crtc(obj
);
2419 /* memcpy into gamma store */
2420 if (crtc_lut
->gamma_size
!= crtc
->gamma_size
) {
2425 size
= crtc_lut
->gamma_size
* (sizeof(uint16_t));
2426 r_base
= crtc
->gamma_store
;
2427 if (copy_from_user(r_base
, (void __user
*)(unsigned long)crtc_lut
->red
, size
)) {
2432 g_base
= r_base
+ size
;
2433 if (copy_from_user(g_base
, (void __user
*)(unsigned long)crtc_lut
->green
, size
)) {
2438 b_base
= g_base
+ size
;
2439 if (copy_from_user(b_base
, (void __user
*)(unsigned long)crtc_lut
->blue
, size
)) {
2444 crtc
->funcs
->gamma_set(crtc
, r_base
, g_base
, b_base
, crtc
->gamma_size
);
2447 mutex_unlock(&dev
->mode_config
.mutex
);
2452 int drm_mode_gamma_get_ioctl(struct drm_device
*dev
,
2453 void *data
, struct drm_file
*file_priv
)
2455 struct drm_mode_crtc_lut
*crtc_lut
= data
;
2456 struct drm_mode_object
*obj
;
2457 struct drm_crtc
*crtc
;
2458 void *r_base
, *g_base
, *b_base
;
2462 mutex_lock(&dev
->mode_config
.mutex
);
2463 obj
= drm_mode_object_find(dev
, crtc_lut
->crtc_id
, DRM_MODE_OBJECT_CRTC
);
2468 crtc
= obj_to_crtc(obj
);
2470 /* memcpy into gamma store */
2471 if (crtc_lut
->gamma_size
!= crtc
->gamma_size
) {
2476 size
= crtc_lut
->gamma_size
* (sizeof(uint16_t));
2477 r_base
= crtc
->gamma_store
;
2478 if (copy_to_user((void __user
*)(unsigned long)crtc_lut
->red
, r_base
, size
)) {
2483 g_base
= r_base
+ size
;
2484 if (copy_to_user((void __user
*)(unsigned long)crtc_lut
->green
, g_base
, size
)) {
2489 b_base
= g_base
+ size
;
2490 if (copy_to_user((void __user
*)(unsigned long)crtc_lut
->blue
, b_base
, size
)) {
2495 mutex_unlock(&dev
->mode_config
.mutex
);