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 },
149 { DRM_MODE_CONNECTOR_TV, "TV", 0 },
152 static struct drm_prop_enum_list drm_encoder_enum_list[] =
153 { { DRM_MODE_ENCODER_NONE, "None" },
154 { DRM_MODE_ENCODER_DAC, "DAC" },
155 { DRM_MODE_ENCODER_TMDS, "TMDS" },
156 { DRM_MODE_ENCODER_LVDS, "LVDS" },
157 { DRM_MODE_ENCODER_TVDAC, "TV" },
160 char *drm_get_encoder_name(struct drm_encoder *encoder)
164 snprintf(buf, 32, "%s-%d",
165 drm_encoder_enum_list[encoder->encoder_type].name,
170 char *drm_get_connector_name(struct drm_connector *connector)
174 snprintf(buf, 32, "%s-%d",
175 drm_connector_enum_list[connector->connector_type].name,
176 connector->connector_type_id);
179 EXPORT_SYMBOL(drm_get_connector_name);
181 char *drm_get_connector_status_name(enum drm_connector_status status)
183 if (status == connector_status_connected)
185 else if (status == connector_status_disconnected)
186 return "disconnected";
192 * drm_mode_object_get - allocate a new identifier
194 * @ptr: object pointer, used to generate unique ID
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)
213 if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) {
214 DRM_ERROR("Ran out memory getting a mode number\n");
218 mutex_lock(&dev->mode_config.idr_mutex);
219 ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id);
220 mutex_unlock(&dev->mode_config.idr_mutex);
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 mutex_lock(&dev->mode_config.idr_mutex);
243 idr_remove(&dev->mode_config.crtc_idr, object->id);
244 mutex_unlock(&dev->mode_config.idr_mutex);
247 void *drm_mode_object_find(struct drm_device *dev, uint32_t id, uint32_t type)
249 struct drm_mode_object *obj = NULL;
251 mutex_lock(&dev->mode_config.idr_mutex);
252 obj = idr_find(&dev->mode_config.crtc_idr, id);
253 if (!obj || (obj->type != type) || (obj->id != id))
255 mutex_unlock(&dev->mode_config.idr_mutex);
259 EXPORT_SYMBOL(drm_mode_object_find);
262 * drm_crtc_from_fb - find the CRTC structure associated with an fb
264 * @fb: framebuffer in question
267 * Caller must hold mode_config lock.
269 * Find CRTC in the mode_config structure that matches @fb.
272 * Pointer to the CRTC or NULL if it wasn't found.
274 struct drm_crtc *drm_crtc_from_fb(struct drm_device *dev,
275 struct drm_framebuffer *fb)
277 struct drm_crtc *crtc;
279 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
287 * drm_framebuffer_init - initialize a framebuffer
291 * Caller must hold mode config lock.
293 * Allocates an ID for the framebuffer's parent mode object, sets its mode
294 * functions & device file and adds it to the master fd list.
297 * Zero on success, error code on falure.
299 int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
300 const struct drm_framebuffer_funcs *funcs)
304 ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
311 dev->mode_config.num_fb++;
312 list_add(&fb->head, &dev->mode_config.fb_list);
316 EXPORT_SYMBOL(drm_framebuffer_init);
319 * drm_framebuffer_cleanup - remove a framebuffer object
320 * @fb: framebuffer to remove
323 * Caller must hold mode config lock.
325 * Scans all the CRTCs in @dev's mode_config. If they're using @fb, removes
326 * it, setting it to NULL.
328 void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
330 struct drm_device *dev = fb->dev;
331 struct drm_crtc *crtc;
333 /* remove from any CRTC */
334 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
339 drm_mode_object_put(dev, &fb->base);
341 dev->mode_config.num_fb--;
343 EXPORT_SYMBOL(drm_framebuffer_cleanup);
346 * drm_crtc_init - Initialise a new CRTC object
348 * @crtc: CRTC object to init
349 * @funcs: callbacks for the new CRTC
352 * Caller must hold mode config lock.
354 * Inits a new object created as base part of an driver crtc object.
356 void drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
357 const struct drm_crtc_funcs *funcs)
362 mutex_lock(&dev->mode_config.mutex);
363 drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
365 list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
366 dev->mode_config.num_crtc++;
367 mutex_unlock(&dev->mode_config.mutex);
369 EXPORT_SYMBOL(drm_crtc_init);
372 * drm_crtc_cleanup - Cleans up the core crtc usage.
373 * @crtc: CRTC to cleanup
376 * Caller must hold mode config lock.
378 * Cleanup @crtc. Removes from drm modesetting space
379 * does NOT free object, caller does that.
381 void drm_crtc_cleanup(struct drm_crtc *crtc)
383 struct drm_device *dev = crtc->dev;
385 if (crtc->gamma_store) {
386 kfree(crtc->gamma_store);
387 crtc->gamma_store = NULL;
390 drm_mode_object_put(dev, &crtc->base);
391 list_del(&crtc->head);
392 dev->mode_config.num_crtc--;
394 EXPORT_SYMBOL(drm_crtc_cleanup);
397 * drm_mode_probed_add - add a mode to a connector's probed mode list
398 * @connector: connector the new mode
402 * Caller must hold mode config lock.
404 * Add @mode to @connector's mode list for later use.
406 void drm_mode_probed_add(struct drm_connector *connector,
407 struct drm_display_mode *mode)
409 list_add(&mode->head, &connector->probed_modes);
411 EXPORT_SYMBOL(drm_mode_probed_add);
414 * drm_mode_remove - remove and free a mode
415 * @connector: connector list to modify
416 * @mode: mode to remove
419 * Caller must hold mode config lock.
421 * Remove @mode from @connector's mode list, then free it.
423 void drm_mode_remove(struct drm_connector *connector,
424 struct drm_display_mode *mode)
426 list_del(&mode->head);
429 EXPORT_SYMBOL(drm_mode_remove);
432 * drm_connector_init - Init a preallocated connector
434 * @connector: the connector to init
435 * @funcs: callbacks for this connector
436 * @name: user visible name of the connector
439 * Caller must hold @dev's mode_config lock.
441 * Initialises a preallocated connector. Connectors should be
442 * subclassed as part of driver connector objects.
444 void drm_connector_init(struct drm_device *dev,
445 struct drm_connector *connector,
446 const struct drm_connector_funcs *funcs,
449 mutex_lock(&dev->mode_config.mutex);
451 connector->dev = dev;
452 connector->funcs = funcs;
453 drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
454 connector->connector_type = connector_type;
455 connector->connector_type_id =
456 ++drm_connector_enum_list[connector_type].count; /* TODO */
457 INIT_LIST_HEAD(&connector->user_modes);
458 INIT_LIST_HEAD(&connector->probed_modes);
459 INIT_LIST_HEAD(&connector->modes);
460 connector->edid_blob_ptr = NULL;
462 list_add_tail(&connector->head, &dev->mode_config.connector_list);
463 dev->mode_config.num_connector++;
465 drm_connector_attach_property(connector,
466 dev->mode_config.edid_property, 0);
468 drm_connector_attach_property(connector,
469 dev->mode_config.dpms_property, 0);
471 mutex_unlock(&dev->mode_config.mutex);
473 EXPORT_SYMBOL(drm_connector_init);
476 * drm_connector_cleanup - cleans up an initialised connector
477 * @connector: connector to cleanup
480 * Caller must hold @dev's mode_config lock.
482 * Cleans up the connector but doesn't free the object.
484 void drm_connector_cleanup(struct drm_connector *connector)
486 struct drm_device *dev = connector->dev;
487 struct drm_display_mode *mode, *t;
489 list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
490 drm_mode_remove(connector, mode);
492 list_for_each_entry_safe(mode, t, &connector->modes, head)
493 drm_mode_remove(connector, mode);
495 list_for_each_entry_safe(mode, t, &connector->user_modes, head)
496 drm_mode_remove(connector, mode);
498 mutex_lock(&dev->mode_config.mutex);
499 drm_mode_object_put(dev, &connector->base);
500 list_del(&connector->head);
501 mutex_unlock(&dev->mode_config.mutex);
503 EXPORT_SYMBOL(drm_connector_cleanup);
505 void drm_encoder_init(struct drm_device *dev,
506 struct drm_encoder *encoder,
507 const struct drm_encoder_funcs *funcs,
510 mutex_lock(&dev->mode_config.mutex);
514 drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
515 encoder->encoder_type = encoder_type;
516 encoder->funcs = funcs;
518 list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
519 dev->mode_config.num_encoder++;
521 mutex_unlock(&dev->mode_config.mutex);
523 EXPORT_SYMBOL(drm_encoder_init);
525 void drm_encoder_cleanup(struct drm_encoder *encoder)
527 struct drm_device *dev = encoder->dev;
528 mutex_lock(&dev->mode_config.mutex);
529 drm_mode_object_put(dev, &encoder->base);
530 list_del(&encoder->head);
531 mutex_unlock(&dev->mode_config.mutex);
533 EXPORT_SYMBOL(drm_encoder_cleanup);
536 * drm_mode_create - create a new display mode
540 * Caller must hold DRM mode_config lock.
542 * Create a new drm_display_mode, give it an ID, and return it.
545 * Pointer to new mode on success, NULL on error.
547 struct drm_display_mode *drm_mode_create(struct drm_device *dev)
549 struct drm_display_mode *nmode;
551 nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
555 drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE);
558 EXPORT_SYMBOL(drm_mode_create);
561 * drm_mode_destroy - remove a mode
563 * @mode: mode to remove
566 * Caller must hold mode config lock.
568 * Free @mode's unique identifier, then free it.
570 void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
572 drm_mode_object_put(dev, &mode->base);
576 EXPORT_SYMBOL(drm_mode_destroy);
578 static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
580 struct drm_property *edid;
581 struct drm_property *dpms;
585 * Standard properties (apply to all connectors)
587 edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
588 DRM_MODE_PROP_IMMUTABLE,
590 dev->mode_config.edid_property = edid;
592 dpms = drm_property_create(dev, DRM_MODE_PROP_ENUM,
593 "DPMS", ARRAY_SIZE(drm_dpms_enum_list));
594 for (i = 0; i < ARRAY_SIZE(drm_dpms_enum_list); i++)
595 drm_property_add_enum(dpms, i, drm_dpms_enum_list[i].type,
596 drm_dpms_enum_list[i].name);
597 dev->mode_config.dpms_property = dpms;
603 * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
606 * Called by a driver the first time a DVI-I connector is made.
608 int drm_mode_create_dvi_i_properties(struct drm_device *dev)
610 struct drm_property *dvi_i_selector;
611 struct drm_property *dvi_i_subconnector;
614 if (dev->mode_config.dvi_i_select_subconnector_property)
618 drm_property_create(dev, DRM_MODE_PROP_ENUM,
619 "select subconnector",
620 ARRAY_SIZE(drm_dvi_i_select_enum_list));
621 for (i = 0; i < ARRAY_SIZE(drm_dvi_i_select_enum_list); i++)
622 drm_property_add_enum(dvi_i_selector, i,
623 drm_dvi_i_select_enum_list[i].type,
624 drm_dvi_i_select_enum_list[i].name);
625 dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
628 drm_property_create(dev, DRM_MODE_PROP_ENUM |
629 DRM_MODE_PROP_IMMUTABLE,
631 ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
632 for (i = 0; i < ARRAY_SIZE(drm_dvi_i_subconnector_enum_list); i++)
633 drm_property_add_enum(dvi_i_subconnector, i,
634 drm_dvi_i_subconnector_enum_list[i].type,
635 drm_dvi_i_subconnector_enum_list[i].name);
636 dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
640 EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
643 * drm_create_tv_properties - create TV specific connector properties
645 * @num_modes: number of different TV formats (modes) supported
646 * @modes: array of pointers to strings containing name of each format
648 * Called by a driver's TV initialization routine, this function creates
649 * the TV specific connector properties for a given device. Caller is
650 * responsible for allocating a list of format names and passing them to
653 int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
656 struct drm_property *tv_selector;
657 struct drm_property *tv_subconnector;
660 if (dev->mode_config.tv_select_subconnector_property)
664 * Basic connector properties
666 tv_selector = drm_property_create(dev, DRM_MODE_PROP_ENUM,
667 "select subconnector",
668 ARRAY_SIZE(drm_tv_select_enum_list));
669 for (i = 0; i < ARRAY_SIZE(drm_tv_select_enum_list); i++)
670 drm_property_add_enum(tv_selector, i,
671 drm_tv_select_enum_list[i].type,
672 drm_tv_select_enum_list[i].name);
673 dev->mode_config.tv_select_subconnector_property = tv_selector;
676 drm_property_create(dev, DRM_MODE_PROP_ENUM |
677 DRM_MODE_PROP_IMMUTABLE, "subconnector",
678 ARRAY_SIZE(drm_tv_subconnector_enum_list));
679 for (i = 0; i < ARRAY_SIZE(drm_tv_subconnector_enum_list); i++)
680 drm_property_add_enum(tv_subconnector, i,
681 drm_tv_subconnector_enum_list[i].type,
682 drm_tv_subconnector_enum_list[i].name);
683 dev->mode_config.tv_subconnector_property = tv_subconnector;
686 * Other, TV specific properties: margins & TV modes.
688 dev->mode_config.tv_left_margin_property =
689 drm_property_create(dev, DRM_MODE_PROP_RANGE,
691 dev->mode_config.tv_left_margin_property->values[0] = 0;
692 dev->mode_config.tv_left_margin_property->values[1] = 100;
694 dev->mode_config.tv_right_margin_property =
695 drm_property_create(dev, DRM_MODE_PROP_RANGE,
697 dev->mode_config.tv_right_margin_property->values[0] = 0;
698 dev->mode_config.tv_right_margin_property->values[1] = 100;
700 dev->mode_config.tv_top_margin_property =
701 drm_property_create(dev, DRM_MODE_PROP_RANGE,
703 dev->mode_config.tv_top_margin_property->values[0] = 0;
704 dev->mode_config.tv_top_margin_property->values[1] = 100;
706 dev->mode_config.tv_bottom_margin_property =
707 drm_property_create(dev, DRM_MODE_PROP_RANGE,
709 dev->mode_config.tv_bottom_margin_property->values[0] = 0;
710 dev->mode_config.tv_bottom_margin_property->values[1] = 100;
712 dev->mode_config.tv_mode_property =
713 drm_property_create(dev, DRM_MODE_PROP_ENUM,
715 for (i = 0; i < num_modes; i++)
716 drm_property_add_enum(dev->mode_config.tv_mode_property, i,
721 EXPORT_SYMBOL(drm_mode_create_tv_properties);
724 * drm_mode_create_scaling_mode_property - create scaling mode property
727 * Called by a driver the first time it's needed, must be attached to desired
730 int drm_mode_create_scaling_mode_property(struct drm_device *dev)
732 struct drm_property *scaling_mode;
735 if (dev->mode_config.scaling_mode_property)
739 drm_property_create(dev, DRM_MODE_PROP_ENUM, "scaling mode",
740 ARRAY_SIZE(drm_scaling_mode_enum_list));
741 for (i = 0; i < ARRAY_SIZE(drm_scaling_mode_enum_list); i++)
742 drm_property_add_enum(scaling_mode, i,
743 drm_scaling_mode_enum_list[i].type,
744 drm_scaling_mode_enum_list[i].name);
746 dev->mode_config.scaling_mode_property = scaling_mode;
750 EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
753 * drm_mode_create_dithering_property - create dithering property
756 * Called by a driver the first time it's needed, must be attached to desired
759 int drm_mode_create_dithering_property(struct drm_device *dev)
761 struct drm_property *dithering_mode;
764 if (dev->mode_config.dithering_mode_property)
768 drm_property_create(dev, DRM_MODE_PROP_ENUM, "dithering",
769 ARRAY_SIZE(drm_dithering_mode_enum_list));
770 for (i = 0; i < ARRAY_SIZE(drm_dithering_mode_enum_list); i++)
771 drm_property_add_enum(dithering_mode, i,
772 drm_dithering_mode_enum_list[i].type,
773 drm_dithering_mode_enum_list[i].name);
774 dev->mode_config.dithering_mode_property = dithering_mode;
778 EXPORT_SYMBOL(drm_mode_create_dithering_property);
781 * drm_mode_config_init - initialize DRM mode_configuration structure
785 * None, should happen single threaded at init time.
787 * Initialize @dev's mode_config structure, used for tracking the graphics
788 * configuration of @dev.
790 void drm_mode_config_init(struct drm_device *dev)
792 mutex_init(&dev->mode_config.mutex);
793 mutex_init(&dev->mode_config.idr_mutex);
794 INIT_LIST_HEAD(&dev->mode_config.fb_list);
795 INIT_LIST_HEAD(&dev->mode_config.fb_kernel_list);
796 INIT_LIST_HEAD(&dev->mode_config.crtc_list);
797 INIT_LIST_HEAD(&dev->mode_config.connector_list);
798 INIT_LIST_HEAD(&dev->mode_config.encoder_list);
799 INIT_LIST_HEAD(&dev->mode_config.property_list);
800 INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
801 idr_init(&dev->mode_config.crtc_idr);
803 mutex_lock(&dev->mode_config.mutex);
804 drm_mode_create_standard_connector_properties(dev);
805 mutex_unlock(&dev->mode_config.mutex);
807 /* Just to be sure */
808 dev->mode_config.num_fb = 0;
809 dev->mode_config.num_connector = 0;
810 dev->mode_config.num_crtc = 0;
811 dev->mode_config.num_encoder = 0;
813 EXPORT_SYMBOL(drm_mode_config_init);
815 int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
817 uint32_t total_objects = 0;
819 total_objects += dev->mode_config.num_crtc;
820 total_objects += dev->mode_config.num_connector;
821 total_objects += dev->mode_config.num_encoder;
823 if (total_objects == 0)
826 group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
830 group->num_crtcs = 0;
831 group->num_connectors = 0;
832 group->num_encoders = 0;
836 int drm_mode_group_init_legacy_group(struct drm_device *dev,
837 struct drm_mode_group *group)
839 struct drm_crtc *crtc;
840 struct drm_encoder *encoder;
841 struct drm_connector *connector;
844 if ((ret = drm_mode_group_init(dev, group)))
847 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
848 group->id_list[group->num_crtcs++] = crtc->base.id;
850 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
851 group->id_list[group->num_crtcs + group->num_encoders++] =
854 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
855 group->id_list[group->num_crtcs + group->num_encoders +
856 group->num_connectors++] = connector->base.id;
862 * drm_mode_config_cleanup - free up DRM mode_config info
866 * Caller must hold mode config lock.
868 * Free up all the connectors and CRTCs associated with this DRM device, then
869 * free up the framebuffers and associated buffer objects.
871 * FIXME: cleanup any dangling user buffer objects too
873 void drm_mode_config_cleanup(struct drm_device *dev)
875 struct drm_connector *connector, *ot;
876 struct drm_crtc *crtc, *ct;
877 struct drm_encoder *encoder, *enct;
878 struct drm_framebuffer *fb, *fbt;
879 struct drm_property *property, *pt;
881 list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
883 encoder->funcs->destroy(encoder);
886 list_for_each_entry_safe(connector, ot,
887 &dev->mode_config.connector_list, head) {
888 connector->funcs->destroy(connector);
891 list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
893 drm_property_destroy(dev, property);
896 list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
897 fb->funcs->destroy(fb);
900 list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
901 crtc->funcs->destroy(crtc);
905 EXPORT_SYMBOL(drm_mode_config_cleanup);
908 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
909 * @out: drm_mode_modeinfo struct to return to the user
910 * @in: drm_display_mode to use
915 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
918 void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
919 struct drm_display_mode *in)
921 out->clock = in->clock;
922 out->hdisplay = in->hdisplay;
923 out->hsync_start = in->hsync_start;
924 out->hsync_end = in->hsync_end;
925 out->htotal = in->htotal;
926 out->hskew = in->hskew;
927 out->vdisplay = in->vdisplay;
928 out->vsync_start = in->vsync_start;
929 out->vsync_end = in->vsync_end;
930 out->vtotal = in->vtotal;
931 out->vscan = in->vscan;
932 out->vrefresh = in->vrefresh;
933 out->flags = in->flags;
934 out->type = in->type;
935 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
936 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
940 * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
941 * @out: drm_display_mode to return to the user
942 * @in: drm_mode_modeinfo to use
947 * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
950 void drm_crtc_convert_umode(struct drm_display_mode *out,
951 struct drm_mode_modeinfo *in)
953 out->clock = in->clock;
954 out->hdisplay = in->hdisplay;
955 out->hsync_start = in->hsync_start;
956 out->hsync_end = in->hsync_end;
957 out->htotal = in->htotal;
958 out->hskew = in->hskew;
959 out->vdisplay = in->vdisplay;
960 out->vsync_start = in->vsync_start;
961 out->vsync_end = in->vsync_end;
962 out->vtotal = in->vtotal;
963 out->vscan = in->vscan;
964 out->vrefresh = in->vrefresh;
965 out->flags = in->flags;
966 out->type = in->type;
967 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
968 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
972 * drm_mode_getresources - get graphics configuration
973 * @inode: inode from the ioctl
974 * @filp: file * from the ioctl
975 * @cmd: cmd from ioctl
976 * @arg: arg from ioctl
979 * Takes mode config lock.
981 * Construct a set of configuration description structures and return
982 * them to the user, including CRTC, connector and framebuffer configuration.
984 * Called by the user via ioctl.
987 * Zero on success, errno on failure.
989 int drm_mode_getresources(struct drm_device *dev, void *data,
990 struct drm_file *file_priv)
992 struct drm_mode_card_res *card_res = data;
993 struct list_head *lh;
994 struct drm_framebuffer *fb;
995 struct drm_connector *connector;
996 struct drm_crtc *crtc;
997 struct drm_encoder *encoder;
999 int connector_count = 0;
1002 int encoder_count = 0;
1004 uint32_t __user *fb_id;
1005 uint32_t __user *crtc_id;
1006 uint32_t __user *connector_id;
1007 uint32_t __user *encoder_id;
1008 struct drm_mode_group *mode_group;
1010 mutex_lock(&dev->mode_config.mutex);
1013 * For the non-control nodes we need to limit the list of resources
1014 * by IDs in the group list for this node
1016 list_for_each(lh, &file_priv->fbs)
1019 mode_group = &file_priv->master->minor->mode_group;
1020 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1022 list_for_each(lh, &dev->mode_config.crtc_list)
1025 list_for_each(lh, &dev->mode_config.connector_list)
1028 list_for_each(lh, &dev->mode_config.encoder_list)
1032 crtc_count = mode_group->num_crtcs;
1033 connector_count = mode_group->num_connectors;
1034 encoder_count = mode_group->num_encoders;
1037 card_res->max_height = dev->mode_config.max_height;
1038 card_res->min_height = dev->mode_config.min_height;
1039 card_res->max_width = dev->mode_config.max_width;
1040 card_res->min_width = dev->mode_config.min_width;
1042 /* handle this in 4 parts */
1044 if (card_res->count_fbs >= fb_count) {
1046 fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
1047 list_for_each_entry(fb, &file_priv->fbs, head) {
1048 if (put_user(fb->base.id, fb_id + copied)) {
1055 card_res->count_fbs = fb_count;
1058 if (card_res->count_crtcs >= crtc_count) {
1060 crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
1061 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1062 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
1064 DRM_DEBUG_KMS("CRTC ID is %d\n", crtc->base.id);
1065 if (put_user(crtc->base.id, crtc_id + copied)) {
1072 for (i = 0; i < mode_group->num_crtcs; i++) {
1073 if (put_user(mode_group->id_list[i],
1074 crtc_id + copied)) {
1082 card_res->count_crtcs = crtc_count;
1085 if (card_res->count_encoders >= encoder_count) {
1087 encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
1088 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1089 list_for_each_entry(encoder,
1090 &dev->mode_config.encoder_list,
1092 DRM_DEBUG_KMS("ENCODER ID is %d\n",
1094 if (put_user(encoder->base.id, encoder_id +
1102 for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
1103 if (put_user(mode_group->id_list[i],
1104 encoder_id + copied)) {
1113 card_res->count_encoders = encoder_count;
1116 if (card_res->count_connectors >= connector_count) {
1118 connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
1119 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1120 list_for_each_entry(connector,
1121 &dev->mode_config.connector_list,
1123 DRM_DEBUG_KMS("CONNECTOR ID is %d\n",
1124 connector->base.id);
1125 if (put_user(connector->base.id,
1126 connector_id + copied)) {
1133 int start = mode_group->num_crtcs +
1134 mode_group->num_encoders;
1135 for (i = start; i < start + mode_group->num_connectors; i++) {
1136 if (put_user(mode_group->id_list[i],
1137 connector_id + copied)) {
1145 card_res->count_connectors = connector_count;
1147 DRM_DEBUG_KMS("Counted %d %d %d\n", card_res->count_crtcs,
1148 card_res->count_connectors, card_res->count_encoders);
1151 mutex_unlock(&dev->mode_config.mutex);
1156 * drm_mode_getcrtc - get CRTC configuration
1157 * @inode: inode from the ioctl
1158 * @filp: file * from the ioctl
1159 * @cmd: cmd from ioctl
1160 * @arg: arg from ioctl
1165 * Construct a CRTC configuration structure to return to the user.
1167 * Called by the user via ioctl.
1170 * Zero on success, errno on failure.
1172 int drm_mode_getcrtc(struct drm_device *dev,
1173 void *data, struct drm_file *file_priv)
1175 struct drm_mode_crtc *crtc_resp = data;
1176 struct drm_crtc *crtc;
1177 struct drm_mode_object *obj;
1180 mutex_lock(&dev->mode_config.mutex);
1182 obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
1183 DRM_MODE_OBJECT_CRTC);
1188 crtc = obj_to_crtc(obj);
1190 crtc_resp->x = crtc->x;
1191 crtc_resp->y = crtc->y;
1192 crtc_resp->gamma_size = crtc->gamma_size;
1194 crtc_resp->fb_id = crtc->fb->base.id;
1196 crtc_resp->fb_id = 0;
1198 if (crtc->enabled) {
1200 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
1201 crtc_resp->mode_valid = 1;
1204 crtc_resp->mode_valid = 0;
1208 mutex_unlock(&dev->mode_config.mutex);
1213 * drm_mode_getconnector - get connector configuration
1214 * @inode: inode from the ioctl
1215 * @filp: file * from the ioctl
1216 * @cmd: cmd from ioctl
1217 * @arg: arg from ioctl
1222 * Construct a connector configuration structure to return to the user.
1224 * Called by the user via ioctl.
1227 * Zero on success, errno on failure.
1229 int drm_mode_getconnector(struct drm_device *dev, void *data,
1230 struct drm_file *file_priv)
1232 struct drm_mode_get_connector *out_resp = data;
1233 struct drm_mode_object *obj;
1234 struct drm_connector *connector;
1235 struct drm_display_mode *mode;
1237 int props_count = 0;
1238 int encoders_count = 0;
1242 struct drm_mode_modeinfo u_mode;
1243 struct drm_mode_modeinfo __user *mode_ptr;
1244 uint32_t __user *prop_ptr;
1245 uint64_t __user *prop_values;
1246 uint32_t __user *encoder_ptr;
1248 memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
1250 DRM_DEBUG_KMS("connector id %d:\n", out_resp->connector_id);
1252 mutex_lock(&dev->mode_config.mutex);
1254 obj = drm_mode_object_find(dev, out_resp->connector_id,
1255 DRM_MODE_OBJECT_CONNECTOR);
1260 connector = obj_to_connector(obj);
1262 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1263 if (connector->property_ids[i] != 0) {
1268 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1269 if (connector->encoder_ids[i] != 0) {
1274 if (out_resp->count_modes == 0) {
1275 connector->funcs->fill_modes(connector,
1276 dev->mode_config.max_width,
1277 dev->mode_config.max_height);
1280 /* delayed so we get modes regardless of pre-fill_modes state */
1281 list_for_each_entry(mode, &connector->modes, head)
1284 out_resp->connector_id = connector->base.id;
1285 out_resp->connector_type = connector->connector_type;
1286 out_resp->connector_type_id = connector->connector_type_id;
1287 out_resp->mm_width = connector->display_info.width_mm;
1288 out_resp->mm_height = connector->display_info.height_mm;
1289 out_resp->subpixel = connector->display_info.subpixel_order;
1290 out_resp->connection = connector->status;
1291 if (connector->encoder)
1292 out_resp->encoder_id = connector->encoder->base.id;
1294 out_resp->encoder_id = 0;
1297 * This ioctl is called twice, once to determine how much space is
1298 * needed, and the 2nd time to fill it.
1300 if ((out_resp->count_modes >= mode_count) && mode_count) {
1302 mode_ptr = (struct drm_mode_modeinfo *)(unsigned long)out_resp->modes_ptr;
1303 list_for_each_entry(mode, &connector->modes, head) {
1304 drm_crtc_convert_to_umode(&u_mode, mode);
1305 if (copy_to_user(mode_ptr + copied,
1306 &u_mode, sizeof(u_mode))) {
1313 out_resp->count_modes = mode_count;
1315 if ((out_resp->count_props >= props_count) && props_count) {
1317 prop_ptr = (uint32_t *)(unsigned long)(out_resp->props_ptr);
1318 prop_values = (uint64_t *)(unsigned long)(out_resp->prop_values_ptr);
1319 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1320 if (connector->property_ids[i] != 0) {
1321 if (put_user(connector->property_ids[i],
1322 prop_ptr + copied)) {
1327 if (put_user(connector->property_values[i],
1328 prop_values + copied)) {
1336 out_resp->count_props = props_count;
1338 if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
1340 encoder_ptr = (uint32_t *)(unsigned long)(out_resp->encoders_ptr);
1341 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1342 if (connector->encoder_ids[i] != 0) {
1343 if (put_user(connector->encoder_ids[i],
1344 encoder_ptr + copied)) {
1352 out_resp->count_encoders = encoders_count;
1355 mutex_unlock(&dev->mode_config.mutex);
1359 int drm_mode_getencoder(struct drm_device *dev, void *data,
1360 struct drm_file *file_priv)
1362 struct drm_mode_get_encoder *enc_resp = data;
1363 struct drm_mode_object *obj;
1364 struct drm_encoder *encoder;
1367 mutex_lock(&dev->mode_config.mutex);
1368 obj = drm_mode_object_find(dev, enc_resp->encoder_id,
1369 DRM_MODE_OBJECT_ENCODER);
1374 encoder = obj_to_encoder(obj);
1377 enc_resp->crtc_id = encoder->crtc->base.id;
1379 enc_resp->crtc_id = 0;
1380 enc_resp->encoder_type = encoder->encoder_type;
1381 enc_resp->encoder_id = encoder->base.id;
1382 enc_resp->possible_crtcs = encoder->possible_crtcs;
1383 enc_resp->possible_clones = encoder->possible_clones;
1386 mutex_unlock(&dev->mode_config.mutex);
1391 * drm_mode_setcrtc - set CRTC configuration
1392 * @inode: inode from the ioctl
1393 * @filp: file * from the ioctl
1394 * @cmd: cmd from ioctl
1395 * @arg: arg from ioctl
1400 * Build a new CRTC configuration based on user request.
1402 * Called by the user via ioctl.
1405 * Zero on success, errno on failure.
1407 int drm_mode_setcrtc(struct drm_device *dev, void *data,
1408 struct drm_file *file_priv)
1410 struct drm_mode_config *config = &dev->mode_config;
1411 struct drm_mode_crtc *crtc_req = data;
1412 struct drm_mode_object *obj;
1413 struct drm_crtc *crtc, *crtcfb;
1414 struct drm_connector **connector_set = NULL, *connector;
1415 struct drm_framebuffer *fb = NULL;
1416 struct drm_display_mode *mode = NULL;
1417 struct drm_mode_set set;
1418 uint32_t __user *set_connectors_ptr;
1422 mutex_lock(&dev->mode_config.mutex);
1423 obj = drm_mode_object_find(dev, crtc_req->crtc_id,
1424 DRM_MODE_OBJECT_CRTC);
1426 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
1430 crtc = obj_to_crtc(obj);
1432 if (crtc_req->mode_valid) {
1433 /* If we have a mode we need a framebuffer. */
1434 /* If we pass -1, set the mode with the currently bound fb */
1435 if (crtc_req->fb_id == -1) {
1436 list_for_each_entry(crtcfb,
1437 &dev->mode_config.crtc_list, head) {
1438 if (crtcfb == crtc) {
1439 DRM_DEBUG_KMS("Using current fb for "
1445 obj = drm_mode_object_find(dev, crtc_req->fb_id,
1446 DRM_MODE_OBJECT_FB);
1448 DRM_DEBUG_KMS("Unknown FB ID%d\n",
1453 fb = obj_to_fb(obj);
1456 mode = drm_mode_create(dev);
1457 drm_crtc_convert_umode(mode, &crtc_req->mode);
1458 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
1461 if (crtc_req->count_connectors == 0 && mode) {
1462 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
1467 if (crtc_req->count_connectors > 0 && !mode && !fb) {
1468 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
1469 crtc_req->count_connectors);
1474 if (crtc_req->count_connectors > 0) {
1477 /* Avoid unbounded kernel memory allocation */
1478 if (crtc_req->count_connectors > config->num_connector) {
1483 connector_set = kmalloc(crtc_req->count_connectors *
1484 sizeof(struct drm_connector *),
1486 if (!connector_set) {
1491 for (i = 0; i < crtc_req->count_connectors; i++) {
1492 set_connectors_ptr = (uint32_t *)(unsigned long)crtc_req->set_connectors_ptr;
1493 if (get_user(out_id, &set_connectors_ptr[i])) {
1498 obj = drm_mode_object_find(dev, out_id,
1499 DRM_MODE_OBJECT_CONNECTOR);
1501 DRM_DEBUG_KMS("Connector id %d unknown\n",
1506 connector = obj_to_connector(obj);
1508 connector_set[i] = connector;
1513 set.x = crtc_req->x;
1514 set.y = crtc_req->y;
1516 set.connectors = connector_set;
1517 set.num_connectors = crtc_req->count_connectors;
1519 ret = crtc->funcs->set_config(&set);
1522 kfree(connector_set);
1523 mutex_unlock(&dev->mode_config.mutex);
1527 int drm_mode_cursor_ioctl(struct drm_device *dev,
1528 void *data, struct drm_file *file_priv)
1530 struct drm_mode_cursor *req = data;
1531 struct drm_mode_object *obj;
1532 struct drm_crtc *crtc;
1535 DRM_DEBUG_KMS("\n");
1538 DRM_ERROR("no operation set\n");
1542 mutex_lock(&dev->mode_config.mutex);
1543 obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
1545 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
1549 crtc = obj_to_crtc(obj);
1551 if (req->flags & DRM_MODE_CURSOR_BO) {
1552 if (!crtc->funcs->cursor_set) {
1553 DRM_ERROR("crtc does not support cursor\n");
1557 /* Turns off the cursor if handle is 0 */
1558 ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
1559 req->width, req->height);
1562 if (req->flags & DRM_MODE_CURSOR_MOVE) {
1563 if (crtc->funcs->cursor_move) {
1564 ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
1566 DRM_ERROR("crtc does not support cursor\n");
1572 mutex_unlock(&dev->mode_config.mutex);
1577 * drm_mode_addfb - add an FB to the graphics configuration
1578 * @inode: inode from the ioctl
1579 * @filp: file * from the ioctl
1580 * @cmd: cmd from ioctl
1581 * @arg: arg from ioctl
1584 * Takes mode config lock.
1586 * Add a new FB to the specified CRTC, given a user request.
1588 * Called by the user via ioctl.
1591 * Zero on success, errno on failure.
1593 int drm_mode_addfb(struct drm_device *dev,
1594 void *data, struct drm_file *file_priv)
1596 struct drm_mode_fb_cmd *r = data;
1597 struct drm_mode_config *config = &dev->mode_config;
1598 struct drm_framebuffer *fb;
1601 if ((config->min_width > r->width) || (r->width > config->max_width)) {
1602 DRM_ERROR("mode new framebuffer width not within limits\n");
1605 if ((config->min_height > r->height) || (r->height > config->max_height)) {
1606 DRM_ERROR("mode new framebuffer height not within limits\n");
1610 mutex_lock(&dev->mode_config.mutex);
1612 /* TODO check buffer is sufficently large */
1613 /* TODO setup destructor callback */
1615 fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
1617 DRM_ERROR("could not create framebuffer\n");
1622 r->fb_id = fb->base.id;
1623 list_add(&fb->filp_head, &file_priv->fbs);
1626 mutex_unlock(&dev->mode_config.mutex);
1631 * drm_mode_rmfb - remove an FB from the configuration
1632 * @inode: inode from the ioctl
1633 * @filp: file * from the ioctl
1634 * @cmd: cmd from ioctl
1635 * @arg: arg from ioctl
1638 * Takes mode config lock.
1640 * Remove the FB specified by the user.
1642 * Called by the user via ioctl.
1645 * Zero on success, errno on failure.
1647 int drm_mode_rmfb(struct drm_device *dev,
1648 void *data, struct drm_file *file_priv)
1650 struct drm_mode_object *obj;
1651 struct drm_framebuffer *fb = NULL;
1652 struct drm_framebuffer *fbl = NULL;
1653 uint32_t *id = data;
1657 mutex_lock(&dev->mode_config.mutex);
1658 obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB);
1659 /* TODO check that we realy get a framebuffer back. */
1661 DRM_ERROR("mode invalid framebuffer id\n");
1665 fb = obj_to_fb(obj);
1667 list_for_each_entry(fbl, &file_priv->fbs, filp_head)
1672 DRM_ERROR("tried to remove a fb that we didn't own\n");
1677 /* TODO release all crtc connected to the framebuffer */
1678 /* TODO unhock the destructor from the buffer object */
1680 list_del(&fb->filp_head);
1681 fb->funcs->destroy(fb);
1684 mutex_unlock(&dev->mode_config.mutex);
1689 * drm_mode_getfb - get FB info
1690 * @inode: inode from the ioctl
1691 * @filp: file * from the ioctl
1692 * @cmd: cmd from ioctl
1693 * @arg: arg from ioctl
1698 * Lookup the FB given its ID and return info about it.
1700 * Called by the user via ioctl.
1703 * Zero on success, errno on failure.
1705 int drm_mode_getfb(struct drm_device *dev,
1706 void *data, struct drm_file *file_priv)
1708 struct drm_mode_fb_cmd *r = data;
1709 struct drm_mode_object *obj;
1710 struct drm_framebuffer *fb;
1713 mutex_lock(&dev->mode_config.mutex);
1714 obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
1716 DRM_ERROR("invalid framebuffer id\n");
1720 fb = obj_to_fb(obj);
1722 r->height = fb->height;
1723 r->width = fb->width;
1724 r->depth = fb->depth;
1725 r->bpp = fb->bits_per_pixel;
1726 r->pitch = fb->pitch;
1727 fb->funcs->create_handle(fb, file_priv, &r->handle);
1730 mutex_unlock(&dev->mode_config.mutex);
1735 * drm_fb_release - remove and free the FBs on this file
1736 * @filp: file * from the ioctl
1739 * Takes mode config lock.
1741 * Destroy all the FBs associated with @filp.
1743 * Called by the user via ioctl.
1746 * Zero on success, errno on failure.
1748 void drm_fb_release(struct drm_file *priv)
1750 struct drm_device *dev = priv->minor->dev;
1751 struct drm_framebuffer *fb, *tfb;
1753 mutex_lock(&dev->mode_config.mutex);
1754 list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
1755 list_del(&fb->filp_head);
1756 fb->funcs->destroy(fb);
1758 mutex_unlock(&dev->mode_config.mutex);
1762 * drm_mode_attachmode - add a mode to the user mode list
1764 * @connector: connector to add the mode to
1765 * @mode: mode to add
1767 * Add @mode to @connector's user mode list.
1769 static int drm_mode_attachmode(struct drm_device *dev,
1770 struct drm_connector *connector,
1771 struct drm_display_mode *mode)
1775 list_add_tail(&mode->head, &connector->user_modes);
1779 int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc,
1780 struct drm_display_mode *mode)
1782 struct drm_connector *connector;
1784 struct drm_display_mode *dup_mode;
1786 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1787 if (!connector->encoder)
1789 if (connector->encoder->crtc == crtc) {
1791 dup_mode = drm_mode_duplicate(dev, mode);
1794 ret = drm_mode_attachmode(dev, connector, dup_mode);
1802 EXPORT_SYMBOL(drm_mode_attachmode_crtc);
1804 static int drm_mode_detachmode(struct drm_device *dev,
1805 struct drm_connector *connector,
1806 struct drm_display_mode *mode)
1810 struct drm_display_mode *match_mode, *t;
1812 list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) {
1813 if (drm_mode_equal(match_mode, mode)) {
1814 list_del(&match_mode->head);
1815 drm_mode_destroy(dev, match_mode);
1827 int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode)
1829 struct drm_connector *connector;
1831 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1832 drm_mode_detachmode(dev, connector, mode);
1836 EXPORT_SYMBOL(drm_mode_detachmode_crtc);
1839 * drm_fb_attachmode - Attach a user mode to an connector
1840 * @inode: inode from the ioctl
1841 * @filp: file * from the ioctl
1842 * @cmd: cmd from ioctl
1843 * @arg: arg from ioctl
1845 * This attaches a user specified mode to an connector.
1846 * Called by the user via ioctl.
1849 * Zero on success, errno on failure.
1851 int drm_mode_attachmode_ioctl(struct drm_device *dev,
1852 void *data, struct drm_file *file_priv)
1854 struct drm_mode_mode_cmd *mode_cmd = data;
1855 struct drm_connector *connector;
1856 struct drm_display_mode *mode;
1857 struct drm_mode_object *obj;
1858 struct drm_mode_modeinfo *umode = &mode_cmd->mode;
1861 mutex_lock(&dev->mode_config.mutex);
1863 obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
1868 connector = obj_to_connector(obj);
1870 mode = drm_mode_create(dev);
1876 drm_crtc_convert_umode(mode, umode);
1878 ret = drm_mode_attachmode(dev, connector, mode);
1880 mutex_unlock(&dev->mode_config.mutex);
1886 * drm_fb_detachmode - Detach a user specified mode from an connector
1887 * @inode: inode from the ioctl
1888 * @filp: file * from the ioctl
1889 * @cmd: cmd from ioctl
1890 * @arg: arg from ioctl
1892 * Called by the user via ioctl.
1895 * Zero on success, errno on failure.
1897 int drm_mode_detachmode_ioctl(struct drm_device *dev,
1898 void *data, struct drm_file *file_priv)
1900 struct drm_mode_object *obj;
1901 struct drm_mode_mode_cmd *mode_cmd = data;
1902 struct drm_connector *connector;
1903 struct drm_display_mode mode;
1904 struct drm_mode_modeinfo *umode = &mode_cmd->mode;
1907 mutex_lock(&dev->mode_config.mutex);
1909 obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
1914 connector = obj_to_connector(obj);
1916 drm_crtc_convert_umode(&mode, umode);
1917 ret = drm_mode_detachmode(dev, connector, &mode);
1919 mutex_unlock(&dev->mode_config.mutex);
1923 struct drm_property *drm_property_create(struct drm_device *dev, int flags,
1924 const char *name, int num_values)
1926 struct drm_property *property = NULL;
1928 property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
1933 property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
1934 if (!property->values)
1938 drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
1939 property->flags = flags;
1940 property->num_values = num_values;
1941 INIT_LIST_HEAD(&property->enum_blob_list);
1944 strncpy(property->name, name, DRM_PROP_NAME_LEN);
1946 list_add_tail(&property->head, &dev->mode_config.property_list);
1952 EXPORT_SYMBOL(drm_property_create);
1954 int drm_property_add_enum(struct drm_property *property, int index,
1955 uint64_t value, const char *name)
1957 struct drm_property_enum *prop_enum;
1959 if (!(property->flags & DRM_MODE_PROP_ENUM))
1962 if (!list_empty(&property->enum_blob_list)) {
1963 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
1964 if (prop_enum->value == value) {
1965 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
1966 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
1972 prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
1976 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
1977 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
1978 prop_enum->value = value;
1980 property->values[index] = value;
1981 list_add_tail(&prop_enum->head, &property->enum_blob_list);
1984 EXPORT_SYMBOL(drm_property_add_enum);
1986 void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
1988 struct drm_property_enum *prop_enum, *pt;
1990 list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
1991 list_del(&prop_enum->head);
1995 if (property->num_values)
1996 kfree(property->values);
1997 drm_mode_object_put(dev, &property->base);
1998 list_del(&property->head);
2001 EXPORT_SYMBOL(drm_property_destroy);
2003 int drm_connector_attach_property(struct drm_connector *connector,
2004 struct drm_property *property, uint64_t init_val)
2008 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2009 if (connector->property_ids[i] == 0) {
2010 connector->property_ids[i] = property->base.id;
2011 connector->property_values[i] = init_val;
2016 if (i == DRM_CONNECTOR_MAX_PROPERTY)
2020 EXPORT_SYMBOL(drm_connector_attach_property);
2022 int drm_connector_property_set_value(struct drm_connector *connector,
2023 struct drm_property *property, uint64_t value)
2027 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2028 if (connector->property_ids[i] == property->base.id) {
2029 connector->property_values[i] = value;
2034 if (i == DRM_CONNECTOR_MAX_PROPERTY)
2038 EXPORT_SYMBOL(drm_connector_property_set_value);
2040 int drm_connector_property_get_value(struct drm_connector *connector,
2041 struct drm_property *property, uint64_t *val)
2045 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2046 if (connector->property_ids[i] == property->base.id) {
2047 *val = connector->property_values[i];
2052 if (i == DRM_CONNECTOR_MAX_PROPERTY)
2056 EXPORT_SYMBOL(drm_connector_property_get_value);
2058 int drm_mode_getproperty_ioctl(struct drm_device *dev,
2059 void *data, struct drm_file *file_priv)
2061 struct drm_mode_object *obj;
2062 struct drm_mode_get_property *out_resp = data;
2063 struct drm_property *property;
2066 int value_count = 0;
2069 struct drm_property_enum *prop_enum;
2070 struct drm_mode_property_enum __user *enum_ptr;
2071 struct drm_property_blob *prop_blob;
2072 uint32_t *blob_id_ptr;
2073 uint64_t __user *values_ptr;
2074 uint32_t __user *blob_length_ptr;
2076 mutex_lock(&dev->mode_config.mutex);
2077 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2082 property = obj_to_property(obj);
2084 if (property->flags & DRM_MODE_PROP_ENUM) {
2085 list_for_each_entry(prop_enum, &property->enum_blob_list, head)
2087 } else if (property->flags & DRM_MODE_PROP_BLOB) {
2088 list_for_each_entry(prop_blob, &property->enum_blob_list, head)
2092 value_count = property->num_values;
2094 strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
2095 out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
2096 out_resp->flags = property->flags;
2098 if ((out_resp->count_values >= value_count) && value_count) {
2099 values_ptr = (uint64_t *)(unsigned long)out_resp->values_ptr;
2100 for (i = 0; i < value_count; i++) {
2101 if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
2107 out_resp->count_values = value_count;
2109 if (property->flags & DRM_MODE_PROP_ENUM) {
2110 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
2112 enum_ptr = (struct drm_mode_property_enum *)(unsigned long)out_resp->enum_blob_ptr;
2113 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2115 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
2120 if (copy_to_user(&enum_ptr[copied].name,
2121 &prop_enum->name, DRM_PROP_NAME_LEN)) {
2128 out_resp->count_enum_blobs = enum_count;
2131 if (property->flags & DRM_MODE_PROP_BLOB) {
2132 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
2134 blob_id_ptr = (uint32_t *)(unsigned long)out_resp->enum_blob_ptr;
2135 blob_length_ptr = (uint32_t *)(unsigned long)out_resp->values_ptr;
2137 list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
2138 if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
2143 if (put_user(prop_blob->length, blob_length_ptr + copied)) {
2151 out_resp->count_enum_blobs = blob_count;
2154 mutex_unlock(&dev->mode_config.mutex);
2158 static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
2161 struct drm_property_blob *blob;
2163 if (!length || !data)
2166 blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
2170 blob->data = (void *)((char *)blob + sizeof(struct drm_property_blob));
2171 blob->length = length;
2173 memcpy(blob->data, data, length);
2175 drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
2177 list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
2181 static void drm_property_destroy_blob(struct drm_device *dev,
2182 struct drm_property_blob *blob)
2184 drm_mode_object_put(dev, &blob->base);
2185 list_del(&blob->head);
2189 int drm_mode_getblob_ioctl(struct drm_device *dev,
2190 void *data, struct drm_file *file_priv)
2192 struct drm_mode_object *obj;
2193 struct drm_mode_get_blob *out_resp = data;
2194 struct drm_property_blob *blob;
2198 mutex_lock(&dev->mode_config.mutex);
2199 obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
2204 blob = obj_to_blob(obj);
2206 if (out_resp->length == blob->length) {
2207 blob_ptr = (void *)(unsigned long)out_resp->data;
2208 if (copy_to_user(blob_ptr, blob->data, blob->length)){
2213 out_resp->length = blob->length;
2216 mutex_unlock(&dev->mode_config.mutex);
2220 int drm_mode_connector_update_edid_property(struct drm_connector *connector,
2223 struct drm_device *dev = connector->dev;
2226 if (connector->edid_blob_ptr)
2227 drm_property_destroy_blob(dev, connector->edid_blob_ptr);
2229 /* Delete edid, when there is none. */
2231 connector->edid_blob_ptr = NULL;
2232 ret = drm_connector_property_set_value(connector, dev->mode_config.edid_property, 0);
2236 connector->edid_blob_ptr = drm_property_create_blob(connector->dev, 128, edid);
2238 ret = drm_connector_property_set_value(connector,
2239 dev->mode_config.edid_property,
2240 connector->edid_blob_ptr->base.id);
2244 EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
2246 int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
2247 void *data, struct drm_file *file_priv)
2249 struct drm_mode_connector_set_property *out_resp = data;
2250 struct drm_mode_object *obj;
2251 struct drm_property *property;
2252 struct drm_connector *connector;
2256 mutex_lock(&dev->mode_config.mutex);
2258 obj = drm_mode_object_find(dev, out_resp->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2262 connector = obj_to_connector(obj);
2264 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2265 if (connector->property_ids[i] == out_resp->prop_id)
2269 if (i == DRM_CONNECTOR_MAX_PROPERTY) {
2273 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2277 property = obj_to_property(obj);
2279 if (property->flags & DRM_MODE_PROP_IMMUTABLE)
2282 if (property->flags & DRM_MODE_PROP_RANGE) {
2283 if (out_resp->value < property->values[0])
2286 if (out_resp->value > property->values[1])
2290 for (i = 0; i < property->num_values; i++) {
2291 if (property->values[i] == out_resp->value) {
2301 /* Do DPMS ourselves */
2302 if (property == connector->dev->mode_config.dpms_property) {
2303 if (connector->funcs->dpms)
2304 (*connector->funcs->dpms)(connector, (int) out_resp->value);
2306 } else if (connector->funcs->set_property)
2307 ret = connector->funcs->set_property(connector, property, out_resp->value);
2309 /* store the property value if succesful */
2311 drm_connector_property_set_value(connector, property, out_resp->value);
2313 mutex_unlock(&dev->mode_config.mutex);
2317 int drm_mode_connector_attach_encoder(struct drm_connector *connector,
2318 struct drm_encoder *encoder)
2322 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
2323 if (connector->encoder_ids[i] == 0) {
2324 connector->encoder_ids[i] = encoder->base.id;
2330 EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
2332 void drm_mode_connector_detach_encoder(struct drm_connector *connector,
2333 struct drm_encoder *encoder)
2336 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
2337 if (connector->encoder_ids[i] == encoder->base.id) {
2338 connector->encoder_ids[i] = 0;
2339 if (connector->encoder == encoder)
2340 connector->encoder = NULL;
2345 EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
2347 bool drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
2350 crtc->gamma_size = gamma_size;
2352 crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
2353 if (!crtc->gamma_store) {
2354 crtc->gamma_size = 0;
2360 EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
2362 int drm_mode_gamma_set_ioctl(struct drm_device *dev,
2363 void *data, struct drm_file *file_priv)
2365 struct drm_mode_crtc_lut *crtc_lut = data;
2366 struct drm_mode_object *obj;
2367 struct drm_crtc *crtc;
2368 void *r_base, *g_base, *b_base;
2372 mutex_lock(&dev->mode_config.mutex);
2373 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
2378 crtc = obj_to_crtc(obj);
2380 /* memcpy into gamma store */
2381 if (crtc_lut->gamma_size != crtc->gamma_size) {
2386 size = crtc_lut->gamma_size * (sizeof(uint16_t));
2387 r_base = crtc->gamma_store;
2388 if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
2393 g_base = r_base + size;
2394 if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
2399 b_base = g_base + size;
2400 if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
2405 crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, crtc->gamma_size);
2408 mutex_unlock(&dev->mode_config.mutex);
2413 int drm_mode_gamma_get_ioctl(struct drm_device *dev,
2414 void *data, struct drm_file *file_priv)
2416 struct drm_mode_crtc_lut *crtc_lut = data;
2417 struct drm_mode_object *obj;
2418 struct drm_crtc *crtc;
2419 void *r_base, *g_base, *b_base;
2423 mutex_lock(&dev->mode_config.mutex);
2424 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
2429 crtc = obj_to_crtc(obj);
2431 /* memcpy into gamma store */
2432 if (crtc_lut->gamma_size != crtc->gamma_size) {
2437 size = crtc_lut->gamma_size * (sizeof(uint16_t));
2438 r_base = crtc->gamma_store;
2439 if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
2444 g_base = r_base + size;
2445 if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
2450 b_base = g_base + size;
2451 if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
2456 mutex_unlock(&dev->mode_config.mutex);