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i2c-eg20t: change timeout value 50msec to 1000msec
[zen-stable.git] / drivers / gpu / drm / drm_crtc.c
blob5e818a808acee995cc2f0e73e0abb84f6bb60894
1 /*
2 * Copyright (c) 2006-2008 Intel Corporation
3 * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
4 * Copyright (c) 2008 Red Hat Inc.
5 *
6 * DRM core CRTC related functions
7 *
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.
17 *
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
24 * OF THIS SOFTWARE.
25 *
26 * Authors:
27 * Keith Packard
28 * Eric Anholt <eric@anholt.net>
29 * Dave Airlie <airlied@linux.ie>
30 * Jesse Barnes <jesse.barnes@intel.com>
31 */
32 #include <linux/list.h>
33 #include <linux/slab.h>
34 #include <linux/export.h>
35 #include "drm.h"
36 #include "drmP.h"
37 #include "drm_crtc.h"
38 #include "drm_edid.h"
39 #include "drm_fourcc.h"
40
41 struct drm_prop_enum_list {
42 int type;
43 char *name;
44 };
45
46 /* Avoid boilerplate. I'm tired of typing. */
47 #define DRM_ENUM_NAME_FN(fnname, list) \
48 char *fnname(int val) \
49 { \
50 int i; \
51 for (i = 0; i < ARRAY_SIZE(list); i++) { \
52 if (list[i].type == val) \
53 return list[i].name; \
54 } \
55 return "(unknown)"; \
56 }
57
58 /*
59 * Global properties
60 */
61 static struct drm_prop_enum_list drm_dpms_enum_list[] =
62 { { DRM_MODE_DPMS_ON, "On" },
63 { DRM_MODE_DPMS_STANDBY, "Standby" },
64 { DRM_MODE_DPMS_SUSPEND, "Suspend" },
65 { DRM_MODE_DPMS_OFF, "Off" }
66 };
67
68 DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list)
69
70 /*
71 * Optional properties
72 */
73 static struct drm_prop_enum_list drm_scaling_mode_enum_list[] =
74 {
75 { DRM_MODE_SCALE_NONE, "None" },
76 { DRM_MODE_SCALE_FULLSCREEN, "Full" },
77 { DRM_MODE_SCALE_CENTER, "Center" },
78 { DRM_MODE_SCALE_ASPECT, "Full aspect" },
79 };
80
81 static struct drm_prop_enum_list drm_dithering_mode_enum_list[] =
82 {
83 { DRM_MODE_DITHERING_OFF, "Off" },
84 { DRM_MODE_DITHERING_ON, "On" },
85 { DRM_MODE_DITHERING_AUTO, "Automatic" },
86 };
87
88 /*
89 * Non-global properties, but "required" for certain connectors.
90 */
91 static struct drm_prop_enum_list drm_dvi_i_select_enum_list[] =
92 {
93 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
94 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
95 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
96 };
97
98 DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list)
99
100 static struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] =
101 {
102 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
103 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
104 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
105 };
106
107 DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name,
108 drm_dvi_i_subconnector_enum_list)
109
110 static struct drm_prop_enum_list drm_tv_select_enum_list[] =
111 {
112 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
113 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
114 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
115 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
116 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
117 };
118
119 DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list)
120
121 static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] =
122 {
123 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
124 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
125 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
126 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
127 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
128 };
129
130 DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
131 drm_tv_subconnector_enum_list)
132
133 static struct drm_prop_enum_list drm_dirty_info_enum_list[] = {
134 { DRM_MODE_DIRTY_OFF, "Off" },
135 { DRM_MODE_DIRTY_ON, "On" },
136 { DRM_MODE_DIRTY_ANNOTATE, "Annotate" },
137 };
138
139 DRM_ENUM_NAME_FN(drm_get_dirty_info_name,
140 drm_dirty_info_enum_list)
141
142 struct drm_conn_prop_enum_list {
143 int type;
144 char *name;
145 int count;
146 };
147
148 /*
149 * Connector and encoder types.
150 */
151 static struct drm_conn_prop_enum_list drm_connector_enum_list[] =
152 { { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 },
153 { DRM_MODE_CONNECTOR_VGA, "VGA", 0 },
154 { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 },
155 { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 },
156 { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 },
157 { DRM_MODE_CONNECTOR_Composite, "Composite", 0 },
158 { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 },
159 { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 },
160 { DRM_MODE_CONNECTOR_Component, "Component", 0 },
161 { DRM_MODE_CONNECTOR_9PinDIN, "DIN", 0 },
162 { DRM_MODE_CONNECTOR_DisplayPort, "DP", 0 },
163 { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A", 0 },
164 { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B", 0 },
165 { DRM_MODE_CONNECTOR_TV, "TV", 0 },
166 { DRM_MODE_CONNECTOR_eDP, "eDP", 0 },
167 { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual", 0},
168 };
169
170 static struct drm_prop_enum_list drm_encoder_enum_list[] =
171 { { DRM_MODE_ENCODER_NONE, "None" },
172 { DRM_MODE_ENCODER_DAC, "DAC" },
173 { DRM_MODE_ENCODER_TMDS, "TMDS" },
174 { DRM_MODE_ENCODER_LVDS, "LVDS" },
175 { DRM_MODE_ENCODER_TVDAC, "TV" },
176 { DRM_MODE_ENCODER_VIRTUAL, "Virtual" },
177 };
178
179 char *drm_get_encoder_name(struct drm_encoder *encoder)
180 {
181 static char buf[32];
182
183 snprintf(buf, 32, "%s-%d",
184 drm_encoder_enum_list[encoder->encoder_type].name,
185 encoder->base.id);
186 return buf;
187 }
188 EXPORT_SYMBOL(drm_get_encoder_name);
189
190 char *drm_get_connector_name(struct drm_connector *connector)
191 {
192 static char buf[32];
193
194 snprintf(buf, 32, "%s-%d",
195 drm_connector_enum_list[connector->connector_type].name,
196 connector->connector_type_id);
197 return buf;
198 }
199 EXPORT_SYMBOL(drm_get_connector_name);
200
201 char *drm_get_connector_status_name(enum drm_connector_status status)
202 {
203 if (status == connector_status_connected)
204 return "connected";
205 else if (status == connector_status_disconnected)
206 return "disconnected";
207 else
208 return "unknown";
209 }
210
211 /**
212 * drm_mode_object_get - allocate a new identifier
213 * @dev: DRM device
214 * @ptr: object pointer, used to generate unique ID
215 * @type: object type
216 *
217 * LOCKING:
218 *
219 * Create a unique identifier based on @ptr in @dev's identifier space. Used
220 * for tracking modes, CRTCs and connectors.
221 *
222 * RETURNS:
223 * New unique (relative to other objects in @dev) integer identifier for the
224 * object.
225 */
226 static int drm_mode_object_get(struct drm_device *dev,
227 struct drm_mode_object *obj, uint32_t obj_type)
228 {
229 int new_id = 0;
230 int ret;
231
232 again:
233 if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) {
234 DRM_ERROR("Ran out memory getting a mode number\n");
235 return -EINVAL;
236 }
237
238 mutex_lock(&dev->mode_config.idr_mutex);
239 ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id);
240 mutex_unlock(&dev->mode_config.idr_mutex);
241 if (ret == -EAGAIN)
242 goto again;
243
244 obj->id = new_id;
245 obj->type = obj_type;
246 return 0;
247 }
248
249 /**
250 * drm_mode_object_put - free an identifer
251 * @dev: DRM device
252 * @id: ID to free
253 *
254 * LOCKING:
255 * Caller must hold DRM mode_config lock.
256 *
257 * Free @id from @dev's unique identifier pool.
258 */
259 static void drm_mode_object_put(struct drm_device *dev,
260 struct drm_mode_object *object)
261 {
262 mutex_lock(&dev->mode_config.idr_mutex);
263 idr_remove(&dev->mode_config.crtc_idr, object->id);
264 mutex_unlock(&dev->mode_config.idr_mutex);
265 }
266
267 struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
268 uint32_t id, uint32_t type)
269 {
270 struct drm_mode_object *obj = NULL;
271
272 mutex_lock(&dev->mode_config.idr_mutex);
273 obj = idr_find(&dev->mode_config.crtc_idr, id);
274 if (!obj || (obj->type != type) || (obj->id != id))
275 obj = NULL;
276 mutex_unlock(&dev->mode_config.idr_mutex);
277
278 return obj;
279 }
280 EXPORT_SYMBOL(drm_mode_object_find);
281
282 /**
283 * drm_framebuffer_init - initialize a framebuffer
284 * @dev: DRM device
285 *
286 * LOCKING:
287 * Caller must hold mode config lock.
288 *
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.
291 *
292 * RETURNS:
293 * Zero on success, error code on failure.
294 */
295 int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
296 const struct drm_framebuffer_funcs *funcs)
297 {
298 int ret;
299
300 ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
301 if (ret) {
302 return ret;
303 }
304
305 fb->dev = dev;
306 fb->funcs = funcs;
307 dev->mode_config.num_fb++;
308 list_add(&fb->head, &dev->mode_config.fb_list);
309
310 return 0;
311 }
312 EXPORT_SYMBOL(drm_framebuffer_init);
313
314 /**
315 * drm_framebuffer_cleanup - remove a framebuffer object
316 * @fb: framebuffer to remove
317 *
318 * LOCKING:
319 * Caller must hold mode config lock.
320 *
321 * Scans all the CRTCs in @dev's mode_config. If they're using @fb, removes
322 * it, setting it to NULL.
323 */
324 void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
325 {
326 struct drm_device *dev = fb->dev;
327 struct drm_crtc *crtc;
328 struct drm_plane *plane;
329 struct drm_mode_set set;
330 int ret;
331
332 /* remove from any CRTC */
333 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
334 if (crtc->fb == fb) {
335 /* should turn off the crtc */
336 memset(&set, 0, sizeof(struct drm_mode_set));
337 set.crtc = crtc;
338 set.fb = NULL;
339 ret = crtc->funcs->set_config(&set);
340 if (ret)
341 DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
342 }
343 }
344
345 list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
346 if (plane->fb == fb) {
347 /* should turn off the crtc */
348 ret = plane->funcs->disable_plane(plane);
349 if (ret)
350 DRM_ERROR("failed to disable plane with busy fb\n");
351 /* disconnect the plane from the fb and crtc: */
352 plane->fb = NULL;
353 plane->crtc = NULL;
354 }
355 }
356
357 drm_mode_object_put(dev, &fb->base);
358 list_del(&fb->head);
359 dev->mode_config.num_fb--;
360 }
361 EXPORT_SYMBOL(drm_framebuffer_cleanup);
362
363 /**
364 * drm_crtc_init - Initialise a new CRTC object
365 * @dev: DRM device
366 * @crtc: CRTC object to init
367 * @funcs: callbacks for the new CRTC
368 *
369 * LOCKING:
370 * Caller must hold mode config lock.
371 *
372 * Inits a new object created as base part of an driver crtc object.
373 */
374 void drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
375 const struct drm_crtc_funcs *funcs)
376 {
377 crtc->dev = dev;
378 crtc->funcs = funcs;
379
380 mutex_lock(&dev->mode_config.mutex);
381 drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
382
383 list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
384 dev->mode_config.num_crtc++;
385 mutex_unlock(&dev->mode_config.mutex);
386 }
387 EXPORT_SYMBOL(drm_crtc_init);
388
389 /**
390 * drm_crtc_cleanup - Cleans up the core crtc usage.
391 * @crtc: CRTC to cleanup
392 *
393 * LOCKING:
394 * Caller must hold mode config lock.
395 *
396 * Cleanup @crtc. Removes from drm modesetting space
397 * does NOT free object, caller does that.
398 */
399 void drm_crtc_cleanup(struct drm_crtc *crtc)
400 {
401 struct drm_device *dev = crtc->dev;
402
403 if (crtc->gamma_store) {
404 kfree(crtc->gamma_store);
405 crtc->gamma_store = NULL;
406 }
407
408 drm_mode_object_put(dev, &crtc->base);
409 list_del(&crtc->head);
410 dev->mode_config.num_crtc--;
411 }
412 EXPORT_SYMBOL(drm_crtc_cleanup);
413
414 /**
415 * drm_mode_probed_add - add a mode to a connector's probed mode list
416 * @connector: connector the new mode
417 * @mode: mode data
418 *
419 * LOCKING:
420 * Caller must hold mode config lock.
421 *
422 * Add @mode to @connector's mode list for later use.
423 */
424 void drm_mode_probed_add(struct drm_connector *connector,
425 struct drm_display_mode *mode)
426 {
427 list_add(&mode->head, &connector->probed_modes);
428 }
429 EXPORT_SYMBOL(drm_mode_probed_add);
430
431 /**
432 * drm_mode_remove - remove and free a mode
433 * @connector: connector list to modify
434 * @mode: mode to remove
435 *
436 * LOCKING:
437 * Caller must hold mode config lock.
438 *
439 * Remove @mode from @connector's mode list, then free it.
440 */
441 void drm_mode_remove(struct drm_connector *connector,
442 struct drm_display_mode *mode)
443 {
444 list_del(&mode->head);
445 kfree(mode);
446 }
447 EXPORT_SYMBOL(drm_mode_remove);
448
449 /**
450 * drm_connector_init - Init a preallocated connector
451 * @dev: DRM device
452 * @connector: the connector to init
453 * @funcs: callbacks for this connector
454 * @name: user visible name of the connector
455 *
456 * LOCKING:
457 * Caller must hold @dev's mode_config lock.
458 *
459 * Initialises a preallocated connector. Connectors should be
460 * subclassed as part of driver connector objects.
461 */
462 void drm_connector_init(struct drm_device *dev,
463 struct drm_connector *connector,
464 const struct drm_connector_funcs *funcs,
465 int connector_type)
466 {
467 mutex_lock(&dev->mode_config.mutex);
468
469 connector->dev = dev;
470 connector->funcs = funcs;
471 drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
472 connector->connector_type = connector_type;
473 connector->connector_type_id =
474 ++drm_connector_enum_list[connector_type].count; /* TODO */
475 INIT_LIST_HEAD(&connector->user_modes);
476 INIT_LIST_HEAD(&connector->probed_modes);
477 INIT_LIST_HEAD(&connector->modes);
478 connector->edid_blob_ptr = NULL;
479
480 list_add_tail(&connector->head, &dev->mode_config.connector_list);
481 dev->mode_config.num_connector++;
482
483 if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL)
484 drm_connector_attach_property(connector,
485 dev->mode_config.edid_property,
486 0);
487
488 drm_connector_attach_property(connector,
489 dev->mode_config.dpms_property, 0);
490
491 mutex_unlock(&dev->mode_config.mutex);
492 }
493 EXPORT_SYMBOL(drm_connector_init);
494
495 /**
496 * drm_connector_cleanup - cleans up an initialised connector
497 * @connector: connector to cleanup
498 *
499 * LOCKING:
500 * Caller must hold @dev's mode_config lock.
501 *
502 * Cleans up the connector but doesn't free the object.
503 */
504 void drm_connector_cleanup(struct drm_connector *connector)
505 {
506 struct drm_device *dev = connector->dev;
507 struct drm_display_mode *mode, *t;
508
509 list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
510 drm_mode_remove(connector, mode);
511
512 list_for_each_entry_safe(mode, t, &connector->modes, head)
513 drm_mode_remove(connector, mode);
514
515 list_for_each_entry_safe(mode, t, &connector->user_modes, head)
516 drm_mode_remove(connector, mode);
517
518 mutex_lock(&dev->mode_config.mutex);
519 drm_mode_object_put(dev, &connector->base);
520 list_del(&connector->head);
521 dev->mode_config.num_connector--;
522 mutex_unlock(&dev->mode_config.mutex);
523 }
524 EXPORT_SYMBOL(drm_connector_cleanup);
525
526 void drm_encoder_init(struct drm_device *dev,
527 struct drm_encoder *encoder,
528 const struct drm_encoder_funcs *funcs,
529 int encoder_type)
530 {
531 mutex_lock(&dev->mode_config.mutex);
532
533 encoder->dev = dev;
534
535 drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
536 encoder->encoder_type = encoder_type;
537 encoder->funcs = funcs;
538
539 list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
540 dev->mode_config.num_encoder++;
541
542 mutex_unlock(&dev->mode_config.mutex);
543 }
544 EXPORT_SYMBOL(drm_encoder_init);
545
546 void drm_encoder_cleanup(struct drm_encoder *encoder)
547 {
548 struct drm_device *dev = encoder->dev;
549 mutex_lock(&dev->mode_config.mutex);
550 drm_mode_object_put(dev, &encoder->base);
551 list_del(&encoder->head);
552 dev->mode_config.num_encoder--;
553 mutex_unlock(&dev->mode_config.mutex);
554 }
555 EXPORT_SYMBOL(drm_encoder_cleanup);
556
557 int drm_plane_init(struct drm_device *dev, struct drm_plane *plane,
558 unsigned long possible_crtcs,
559 const struct drm_plane_funcs *funcs,
560 const uint32_t *formats, uint32_t format_count,
561 bool priv)
562 {
563 mutex_lock(&dev->mode_config.mutex);
564
565 plane->dev = dev;
566 drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE);
567 plane->funcs = funcs;
568 plane->format_types = kmalloc(sizeof(uint32_t) * format_count,
569 GFP_KERNEL);
570 if (!plane->format_types) {
571 DRM_DEBUG_KMS("out of memory when allocating plane\n");
572 drm_mode_object_put(dev, &plane->base);
573 mutex_unlock(&dev->mode_config.mutex);
574 return -ENOMEM;
575 }
576
577 memcpy(plane->format_types, formats, format_count * sizeof(uint32_t));
578 plane->format_count = format_count;
579 plane->possible_crtcs = possible_crtcs;
580
581 /* private planes are not exposed to userspace, but depending on
582 * display hardware, might be convenient to allow sharing programming
583 * for the scanout engine with the crtc implementation.
584 */
585 if (!priv) {
586 list_add_tail(&plane->head, &dev->mode_config.plane_list);
587 dev->mode_config.num_plane++;
588 } else {
589 INIT_LIST_HEAD(&plane->head);
590 }
591
592 mutex_unlock(&dev->mode_config.mutex);
593
594 return 0;
595 }
596 EXPORT_SYMBOL(drm_plane_init);
597
598 void drm_plane_cleanup(struct drm_plane *plane)
599 {
600 struct drm_device *dev = plane->dev;
601
602 mutex_lock(&dev->mode_config.mutex);
603 kfree(plane->format_types);
604 drm_mode_object_put(dev, &plane->base);
605 /* if not added to a list, it must be a private plane */
606 if (!list_empty(&plane->head)) {
607 list_del(&plane->head);
608 dev->mode_config.num_plane--;
609 }
610 mutex_unlock(&dev->mode_config.mutex);
611 }
612 EXPORT_SYMBOL(drm_plane_cleanup);
613
614 /**
615 * drm_mode_create - create a new display mode
616 * @dev: DRM device
617 *
618 * LOCKING:
619 * Caller must hold DRM mode_config lock.
620 *
621 * Create a new drm_display_mode, give it an ID, and return it.
622 *
623 * RETURNS:
624 * Pointer to new mode on success, NULL on error.
625 */
626 struct drm_display_mode *drm_mode_create(struct drm_device *dev)
627 {
628 struct drm_display_mode *nmode;
629
630 nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
631 if (!nmode)
632 return NULL;
633
634 drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE);
635 return nmode;
636 }
637 EXPORT_SYMBOL(drm_mode_create);
638
639 /**
640 * drm_mode_destroy - remove a mode
641 * @dev: DRM device
642 * @mode: mode to remove
643 *
644 * LOCKING:
645 * Caller must hold mode config lock.
646 *
647 * Free @mode's unique identifier, then free it.
648 */
649 void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
650 {
651 drm_mode_object_put(dev, &mode->base);
652
653 kfree(mode);
654 }
655 EXPORT_SYMBOL(drm_mode_destroy);
656
657 static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
658 {
659 struct drm_property *edid;
660 struct drm_property *dpms;
661 int i;
662
663 /*
664 * Standard properties (apply to all connectors)
665 */
666 edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
667 DRM_MODE_PROP_IMMUTABLE,
668 "EDID", 0);
669 dev->mode_config.edid_property = edid;
670
671 dpms = drm_property_create(dev, DRM_MODE_PROP_ENUM,
672 "DPMS", ARRAY_SIZE(drm_dpms_enum_list));
673 for (i = 0; i < ARRAY_SIZE(drm_dpms_enum_list); i++)
674 drm_property_add_enum(dpms, i, drm_dpms_enum_list[i].type,
675 drm_dpms_enum_list[i].name);
676 dev->mode_config.dpms_property = dpms;
677
678 return 0;
679 }
680
681 /**
682 * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
683 * @dev: DRM device
684 *
685 * Called by a driver the first time a DVI-I connector is made.
686 */
687 int drm_mode_create_dvi_i_properties(struct drm_device *dev)
688 {
689 struct drm_property *dvi_i_selector;
690 struct drm_property *dvi_i_subconnector;
691 int i;
692
693 if (dev->mode_config.dvi_i_select_subconnector_property)
694 return 0;
695
696 dvi_i_selector =
697 drm_property_create(dev, DRM_MODE_PROP_ENUM,
698 "select subconnector",
699 ARRAY_SIZE(drm_dvi_i_select_enum_list));
700 for (i = 0; i < ARRAY_SIZE(drm_dvi_i_select_enum_list); i++)
701 drm_property_add_enum(dvi_i_selector, i,
702 drm_dvi_i_select_enum_list[i].type,
703 drm_dvi_i_select_enum_list[i].name);
704 dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
705
706 dvi_i_subconnector =
707 drm_property_create(dev, DRM_MODE_PROP_ENUM |
708 DRM_MODE_PROP_IMMUTABLE,
709 "subconnector",
710 ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
711 for (i = 0; i < ARRAY_SIZE(drm_dvi_i_subconnector_enum_list); i++)
712 drm_property_add_enum(dvi_i_subconnector, i,
713 drm_dvi_i_subconnector_enum_list[i].type,
714 drm_dvi_i_subconnector_enum_list[i].name);
715 dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
716
717 return 0;
718 }
719 EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
720
721 /**
722 * drm_create_tv_properties - create TV specific connector properties
723 * @dev: DRM device
724 * @num_modes: number of different TV formats (modes) supported
725 * @modes: array of pointers to strings containing name of each format
726 *
727 * Called by a driver's TV initialization routine, this function creates
728 * the TV specific connector properties for a given device. Caller is
729 * responsible for allocating a list of format names and passing them to
730 * this routine.
731 */
732 int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
733 char *modes[])
734 {
735 struct drm_property *tv_selector;
736 struct drm_property *tv_subconnector;
737 int i;
738
739 if (dev->mode_config.tv_select_subconnector_property)
740 return 0;
741
742 /*
743 * Basic connector properties
744 */
745 tv_selector = drm_property_create(dev, DRM_MODE_PROP_ENUM,
746 "select subconnector",
747 ARRAY_SIZE(drm_tv_select_enum_list));
748 for (i = 0; i < ARRAY_SIZE(drm_tv_select_enum_list); i++)
749 drm_property_add_enum(tv_selector, i,
750 drm_tv_select_enum_list[i].type,
751 drm_tv_select_enum_list[i].name);
752 dev->mode_config.tv_select_subconnector_property = tv_selector;
753
754 tv_subconnector =
755 drm_property_create(dev, DRM_MODE_PROP_ENUM |
756 DRM_MODE_PROP_IMMUTABLE, "subconnector",
757 ARRAY_SIZE(drm_tv_subconnector_enum_list));
758 for (i = 0; i < ARRAY_SIZE(drm_tv_subconnector_enum_list); i++)
759 drm_property_add_enum(tv_subconnector, i,
760 drm_tv_subconnector_enum_list[i].type,
761 drm_tv_subconnector_enum_list[i].name);
762 dev->mode_config.tv_subconnector_property = tv_subconnector;
763
764 /*
765 * Other, TV specific properties: margins & TV modes.
766 */
767 dev->mode_config.tv_left_margin_property =
768 drm_property_create(dev, DRM_MODE_PROP_RANGE,
769 "left margin", 2);
770 dev->mode_config.tv_left_margin_property->values[0] = 0;
771 dev->mode_config.tv_left_margin_property->values[1] = 100;
772
773 dev->mode_config.tv_right_margin_property =
774 drm_property_create(dev, DRM_MODE_PROP_RANGE,
775 "right margin", 2);
776 dev->mode_config.tv_right_margin_property->values[0] = 0;
777 dev->mode_config.tv_right_margin_property->values[1] = 100;
778
779 dev->mode_config.tv_top_margin_property =
780 drm_property_create(dev, DRM_MODE_PROP_RANGE,
781 "top margin", 2);
782 dev->mode_config.tv_top_margin_property->values[0] = 0;
783 dev->mode_config.tv_top_margin_property->values[1] = 100;
784
785 dev->mode_config.tv_bottom_margin_property =
786 drm_property_create(dev, DRM_MODE_PROP_RANGE,
787 "bottom margin", 2);
788 dev->mode_config.tv_bottom_margin_property->values[0] = 0;
789 dev->mode_config.tv_bottom_margin_property->values[1] = 100;
790
791 dev->mode_config.tv_mode_property =
792 drm_property_create(dev, DRM_MODE_PROP_ENUM,
793 "mode", num_modes);
794 for (i = 0; i < num_modes; i++)
795 drm_property_add_enum(dev->mode_config.tv_mode_property, i,
796 i, modes[i]);
797
798 dev->mode_config.tv_brightness_property =
799 drm_property_create(dev, DRM_MODE_PROP_RANGE,
800 "brightness", 2);
801 dev->mode_config.tv_brightness_property->values[0] = 0;
802 dev->mode_config.tv_brightness_property->values[1] = 100;
803
804 dev->mode_config.tv_contrast_property =
805 drm_property_create(dev, DRM_MODE_PROP_RANGE,
806 "contrast", 2);
807 dev->mode_config.tv_contrast_property->values[0] = 0;
808 dev->mode_config.tv_contrast_property->values[1] = 100;
809
810 dev->mode_config.tv_flicker_reduction_property =
811 drm_property_create(dev, DRM_MODE_PROP_RANGE,
812 "flicker reduction", 2);
813 dev->mode_config.tv_flicker_reduction_property->values[0] = 0;
814 dev->mode_config.tv_flicker_reduction_property->values[1] = 100;
815
816 dev->mode_config.tv_overscan_property =
817 drm_property_create(dev, DRM_MODE_PROP_RANGE,
818 "overscan", 2);
819 dev->mode_config.tv_overscan_property->values[0] = 0;
820 dev->mode_config.tv_overscan_property->values[1] = 100;
821
822 dev->mode_config.tv_saturation_property =
823 drm_property_create(dev, DRM_MODE_PROP_RANGE,
824 "saturation", 2);
825 dev->mode_config.tv_saturation_property->values[0] = 0;
826 dev->mode_config.tv_saturation_property->values[1] = 100;
827
828 dev->mode_config.tv_hue_property =
829 drm_property_create(dev, DRM_MODE_PROP_RANGE,
830 "hue", 2);
831 dev->mode_config.tv_hue_property->values[0] = 0;
832 dev->mode_config.tv_hue_property->values[1] = 100;
833
834 return 0;
835 }
836 EXPORT_SYMBOL(drm_mode_create_tv_properties);
837
838 /**
839 * drm_mode_create_scaling_mode_property - create scaling mode property
840 * @dev: DRM device
841 *
842 * Called by a driver the first time it's needed, must be attached to desired
843 * connectors.
844 */
845 int drm_mode_create_scaling_mode_property(struct drm_device *dev)
846 {
847 struct drm_property *scaling_mode;
848 int i;
849
850 if (dev->mode_config.scaling_mode_property)
851 return 0;
852
853 scaling_mode =
854 drm_property_create(dev, DRM_MODE_PROP_ENUM, "scaling mode",
855 ARRAY_SIZE(drm_scaling_mode_enum_list));
856 for (i = 0; i < ARRAY_SIZE(drm_scaling_mode_enum_list); i++)
857 drm_property_add_enum(scaling_mode, i,
858 drm_scaling_mode_enum_list[i].type,
859 drm_scaling_mode_enum_list[i].name);
860
861 dev->mode_config.scaling_mode_property = scaling_mode;
862
863 return 0;
864 }
865 EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
866
867 /**
868 * drm_mode_create_dithering_property - create dithering property
869 * @dev: DRM device
870 *
871 * Called by a driver the first time it's needed, must be attached to desired
872 * connectors.
873 */
874 int drm_mode_create_dithering_property(struct drm_device *dev)
875 {
876 struct drm_property *dithering_mode;
877 int i;
878
879 if (dev->mode_config.dithering_mode_property)
880 return 0;
881
882 dithering_mode =
883 drm_property_create(dev, DRM_MODE_PROP_ENUM, "dithering",
884 ARRAY_SIZE(drm_dithering_mode_enum_list));
885 for (i = 0; i < ARRAY_SIZE(drm_dithering_mode_enum_list); i++)
886 drm_property_add_enum(dithering_mode, i,
887 drm_dithering_mode_enum_list[i].type,
888 drm_dithering_mode_enum_list[i].name);
889 dev->mode_config.dithering_mode_property = dithering_mode;
890
891 return 0;
892 }
893 EXPORT_SYMBOL(drm_mode_create_dithering_property);
894
895 /**
896 * drm_mode_create_dirty_property - create dirty property
897 * @dev: DRM device
898 *
899 * Called by a driver the first time it's needed, must be attached to desired
900 * connectors.
901 */
902 int drm_mode_create_dirty_info_property(struct drm_device *dev)
903 {
904 struct drm_property *dirty_info;
905 int i;
906
907 if (dev->mode_config.dirty_info_property)
908 return 0;
909
910 dirty_info =
911 drm_property_create(dev, DRM_MODE_PROP_ENUM |
912 DRM_MODE_PROP_IMMUTABLE,
913 "dirty",
914 ARRAY_SIZE(drm_dirty_info_enum_list));
915 for (i = 0; i < ARRAY_SIZE(drm_dirty_info_enum_list); i++)
916 drm_property_add_enum(dirty_info, i,
917 drm_dirty_info_enum_list[i].type,
918 drm_dirty_info_enum_list[i].name);
919 dev->mode_config.dirty_info_property = dirty_info;
920
921 return 0;
922 }
923 EXPORT_SYMBOL(drm_mode_create_dirty_info_property);
924
925 /**
926 * drm_mode_config_init - initialize DRM mode_configuration structure
927 * @dev: DRM device
928 *
929 * LOCKING:
930 * None, should happen single threaded at init time.
931 *
932 * Initialize @dev's mode_config structure, used for tracking the graphics
933 * configuration of @dev.
934 */
935 void drm_mode_config_init(struct drm_device *dev)
936 {
937 mutex_init(&dev->mode_config.mutex);
938 mutex_init(&dev->mode_config.idr_mutex);
939 INIT_LIST_HEAD(&dev->mode_config.fb_list);
940 INIT_LIST_HEAD(&dev->mode_config.crtc_list);
941 INIT_LIST_HEAD(&dev->mode_config.connector_list);
942 INIT_LIST_HEAD(&dev->mode_config.encoder_list);
943 INIT_LIST_HEAD(&dev->mode_config.property_list);
944 INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
945 INIT_LIST_HEAD(&dev->mode_config.plane_list);
946 idr_init(&dev->mode_config.crtc_idr);
947
948 mutex_lock(&dev->mode_config.mutex);
949 drm_mode_create_standard_connector_properties(dev);
950 mutex_unlock(&dev->mode_config.mutex);
951
952 /* Just to be sure */
953 dev->mode_config.num_fb = 0;
954 dev->mode_config.num_connector = 0;
955 dev->mode_config.num_crtc = 0;
956 dev->mode_config.num_encoder = 0;
957 }
958 EXPORT_SYMBOL(drm_mode_config_init);
959
960 int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
961 {
962 uint32_t total_objects = 0;
963
964 total_objects += dev->mode_config.num_crtc;
965 total_objects += dev->mode_config.num_connector;
966 total_objects += dev->mode_config.num_encoder;
967
968 group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
969 if (!group->id_list)
970 return -ENOMEM;
971
972 group->num_crtcs = 0;
973 group->num_connectors = 0;
974 group->num_encoders = 0;
975 return 0;
976 }
977
978 int drm_mode_group_init_legacy_group(struct drm_device *dev,
979 struct drm_mode_group *group)
980 {
981 struct drm_crtc *crtc;
982 struct drm_encoder *encoder;
983 struct drm_connector *connector;
984 int ret;
985
986 if ((ret = drm_mode_group_init(dev, group)))
987 return ret;
988
989 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
990 group->id_list[group->num_crtcs++] = crtc->base.id;
991
992 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
993 group->id_list[group->num_crtcs + group->num_encoders++] =
994 encoder->base.id;
995
996 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
997 group->id_list[group->num_crtcs + group->num_encoders +
998 group->num_connectors++] = connector->base.id;
999
1000 return 0;
1001 }
1002
1003 /**
1004 * drm_mode_config_cleanup - free up DRM mode_config info
1005 * @dev: DRM device
1006 *
1007 * LOCKING:
1008 * Caller must hold mode config lock.
1009 *
1010 * Free up all the connectors and CRTCs associated with this DRM device, then
1011 * free up the framebuffers and associated buffer objects.
1012 *
1013 * FIXME: cleanup any dangling user buffer objects too
1014 */
1015 void drm_mode_config_cleanup(struct drm_device *dev)
1016 {
1017 struct drm_connector *connector, *ot;
1018 struct drm_crtc *crtc, *ct;
1019 struct drm_encoder *encoder, *enct;
1020 struct drm_framebuffer *fb, *fbt;
1021 struct drm_property *property, *pt;
1022 struct drm_plane *plane, *plt;
1023
1024 list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
1025 head) {
1026 encoder->funcs->destroy(encoder);
1027 }
1028
1029 list_for_each_entry_safe(connector, ot,
1030 &dev->mode_config.connector_list, head) {
1031 connector->funcs->destroy(connector);
1032 }
1033
1034 list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
1035 head) {
1036 drm_property_destroy(dev, property);
1037 }
1038
1039 list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
1040 fb->funcs->destroy(fb);
1041 }
1042
1043 list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
1044 crtc->funcs->destroy(crtc);
1045 }
1046
1047 list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list,
1048 head) {
1049 plane->funcs->destroy(plane);
1050 }
1051 }
1052 EXPORT_SYMBOL(drm_mode_config_cleanup);
1053
1054 /**
1055 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
1056 * @out: drm_mode_modeinfo struct to return to the user
1057 * @in: drm_display_mode to use
1058 *
1059 * LOCKING:
1060 * None.
1061 *
1062 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
1063 * the user.
1064 */
1065 void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
1066 struct drm_display_mode *in)
1067 {
1068 out->clock = in->clock;
1069 out->hdisplay = in->hdisplay;
1070 out->hsync_start = in->hsync_start;
1071 out->hsync_end = in->hsync_end;
1072 out->htotal = in->htotal;
1073 out->hskew = in->hskew;
1074 out->vdisplay = in->vdisplay;
1075 out->vsync_start = in->vsync_start;
1076 out->vsync_end = in->vsync_end;
1077 out->vtotal = in->vtotal;
1078 out->vscan = in->vscan;
1079 out->vrefresh = in->vrefresh;
1080 out->flags = in->flags;
1081 out->type = in->type;
1082 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1083 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1084 }
1085
1086 /**
1087 * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
1088 * @out: drm_display_mode to return to the user
1089 * @in: drm_mode_modeinfo to use
1090 *
1091 * LOCKING:
1092 * None.
1093 *
1094 * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
1095 * the caller.
1096 */
1097 void drm_crtc_convert_umode(struct drm_display_mode *out,
1098 struct drm_mode_modeinfo *in)
1099 {
1100 out->clock = in->clock;
1101 out->hdisplay = in->hdisplay;
1102 out->hsync_start = in->hsync_start;
1103 out->hsync_end = in->hsync_end;
1104 out->htotal = in->htotal;
1105 out->hskew = in->hskew;
1106 out->vdisplay = in->vdisplay;
1107 out->vsync_start = in->vsync_start;
1108 out->vsync_end = in->vsync_end;
1109 out->vtotal = in->vtotal;
1110 out->vscan = in->vscan;
1111 out->vrefresh = in->vrefresh;
1112 out->flags = in->flags;
1113 out->type = in->type;
1114 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1115 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1116 }
1117
1118 /**
1119 * drm_mode_getresources - get graphics configuration
1120 * @inode: inode from the ioctl
1121 * @filp: file * from the ioctl
1122 * @cmd: cmd from ioctl
1123 * @arg: arg from ioctl
1124 *
1125 * LOCKING:
1126 * Takes mode config lock.
1127 *
1128 * Construct a set of configuration description structures and return
1129 * them to the user, including CRTC, connector and framebuffer configuration.
1130 *
1131 * Called by the user via ioctl.
1132 *
1133 * RETURNS:
1134 * Zero on success, errno on failure.
1135 */
1136 int drm_mode_getresources(struct drm_device *dev, void *data,
1137 struct drm_file *file_priv)
1138 {
1139 struct drm_mode_card_res *card_res = data;
1140 struct list_head *lh;
1141 struct drm_framebuffer *fb;
1142 struct drm_connector *connector;
1143 struct drm_crtc *crtc;
1144 struct drm_encoder *encoder;
1145 int ret = 0;
1146 int connector_count = 0;
1147 int crtc_count = 0;
1148 int fb_count = 0;
1149 int encoder_count = 0;
1150 int copied = 0, i;
1151 uint32_t __user *fb_id;
1152 uint32_t __user *crtc_id;
1153 uint32_t __user *connector_id;
1154 uint32_t __user *encoder_id;
1155 struct drm_mode_group *mode_group;
1156
1157 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1158 return -EINVAL;
1159
1160 mutex_lock(&dev->mode_config.mutex);
1161
1162 /*
1163 * For the non-control nodes we need to limit the list of resources
1164 * by IDs in the group list for this node
1165 */
1166 list_for_each(lh, &file_priv->fbs)
1167 fb_count++;
1168
1169 mode_group = &file_priv->master->minor->mode_group;
1170 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1171
1172 list_for_each(lh, &dev->mode_config.crtc_list)
1173 crtc_count++;
1174
1175 list_for_each(lh, &dev->mode_config.connector_list)
1176 connector_count++;
1177
1178 list_for_each(lh, &dev->mode_config.encoder_list)
1179 encoder_count++;
1180 } else {
1181
1182 crtc_count = mode_group->num_crtcs;
1183 connector_count = mode_group->num_connectors;
1184 encoder_count = mode_group->num_encoders;
1185 }
1186
1187 card_res->max_height = dev->mode_config.max_height;
1188 card_res->min_height = dev->mode_config.min_height;
1189 card_res->max_width = dev->mode_config.max_width;
1190 card_res->min_width = dev->mode_config.min_width;
1191
1192 /* handle this in 4 parts */
1193 /* FBs */
1194 if (card_res->count_fbs >= fb_count) {
1195 copied = 0;
1196 fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
1197 list_for_each_entry(fb, &file_priv->fbs, filp_head) {
1198 if (put_user(fb->base.id, fb_id + copied)) {
1199 ret = -EFAULT;
1200 goto out;
1201 }
1202 copied++;
1203 }
1204 }
1205 card_res->count_fbs = fb_count;
1206
1207 /* CRTCs */
1208 if (card_res->count_crtcs >= crtc_count) {
1209 copied = 0;
1210 crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
1211 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1212 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
1213 head) {
1214 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
1215 if (put_user(crtc->base.id, crtc_id + copied)) {
1216 ret = -EFAULT;
1217 goto out;
1218 }
1219 copied++;
1220 }
1221 } else {
1222 for (i = 0; i < mode_group->num_crtcs; i++) {
1223 if (put_user(mode_group->id_list[i],
1224 crtc_id + copied)) {
1225 ret = -EFAULT;
1226 goto out;
1227 }
1228 copied++;
1229 }
1230 }
1231 }
1232 card_res->count_crtcs = crtc_count;
1233
1234 /* Encoders */
1235 if (card_res->count_encoders >= encoder_count) {
1236 copied = 0;
1237 encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
1238 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1239 list_for_each_entry(encoder,
1240 &dev->mode_config.encoder_list,
1241 head) {
1242 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id,
1243 drm_get_encoder_name(encoder));
1244 if (put_user(encoder->base.id, encoder_id +
1245 copied)) {
1246 ret = -EFAULT;
1247 goto out;
1248 }
1249 copied++;
1250 }
1251 } else {
1252 for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
1253 if (put_user(mode_group->id_list[i],
1254 encoder_id + copied)) {
1255 ret = -EFAULT;
1256 goto out;
1257 }
1258 copied++;
1259 }
1260
1261 }
1262 }
1263 card_res->count_encoders = encoder_count;
1264
1265 /* Connectors */
1266 if (card_res->count_connectors >= connector_count) {
1267 copied = 0;
1268 connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
1269 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1270 list_for_each_entry(connector,
1271 &dev->mode_config.connector_list,
1272 head) {
1273 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1274 connector->base.id,
1275 drm_get_connector_name(connector));
1276 if (put_user(connector->base.id,
1277 connector_id + copied)) {
1278 ret = -EFAULT;
1279 goto out;
1280 }
1281 copied++;
1282 }
1283 } else {
1284 int start = mode_group->num_crtcs +
1285 mode_group->num_encoders;
1286 for (i = start; i < start + mode_group->num_connectors; i++) {
1287 if (put_user(mode_group->id_list[i],
1288 connector_id + copied)) {
1289 ret = -EFAULT;
1290 goto out;
1291 }
1292 copied++;
1293 }
1294 }
1295 }
1296 card_res->count_connectors = connector_count;
1297
1298 DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs,
1299 card_res->count_connectors, card_res->count_encoders);
1300
1301 out:
1302 mutex_unlock(&dev->mode_config.mutex);
1303 return ret;
1304 }
1305
1306 /**
1307 * drm_mode_getcrtc - get CRTC configuration
1308 * @inode: inode from the ioctl
1309 * @filp: file * from the ioctl
1310 * @cmd: cmd from ioctl
1311 * @arg: arg from ioctl
1312 *
1313 * LOCKING:
1314 * Caller? (FIXME)
1315 *
1316 * Construct a CRTC configuration structure to return to the user.
1317 *
1318 * Called by the user via ioctl.
1319 *
1320 * RETURNS:
1321 * Zero on success, errno on failure.
1322 */
1323 int drm_mode_getcrtc(struct drm_device *dev,
1324 void *data, struct drm_file *file_priv)
1325 {
1326 struct drm_mode_crtc *crtc_resp = data;
1327 struct drm_crtc *crtc;
1328 struct drm_mode_object *obj;
1329 int ret = 0;
1330
1331 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1332 return -EINVAL;
1333
1334 mutex_lock(&dev->mode_config.mutex);
1335
1336 obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
1337 DRM_MODE_OBJECT_CRTC);
1338 if (!obj) {
1339 ret = -EINVAL;
1340 goto out;
1341 }
1342 crtc = obj_to_crtc(obj);
1343
1344 crtc_resp->x = crtc->x;
1345 crtc_resp->y = crtc->y;
1346 crtc_resp->gamma_size = crtc->gamma_size;
1347 if (crtc->fb)
1348 crtc_resp->fb_id = crtc->fb->base.id;
1349 else
1350 crtc_resp->fb_id = 0;
1351
1352 if (crtc->enabled) {
1353
1354 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
1355 crtc_resp->mode_valid = 1;
1356
1357 } else {
1358 crtc_resp->mode_valid = 0;
1359 }
1360
1361 out:
1362 mutex_unlock(&dev->mode_config.mutex);
1363 return ret;
1364 }
1365
1366 /**
1367 * drm_mode_getconnector - get connector configuration
1368 * @inode: inode from the ioctl
1369 * @filp: file * from the ioctl
1370 * @cmd: cmd from ioctl
1371 * @arg: arg from ioctl
1372 *
1373 * LOCKING:
1374 * Caller? (FIXME)
1375 *
1376 * Construct a connector configuration structure to return to the user.
1377 *
1378 * Called by the user via ioctl.
1379 *
1380 * RETURNS:
1381 * Zero on success, errno on failure.
1382 */
1383 int drm_mode_getconnector(struct drm_device *dev, void *data,
1384 struct drm_file *file_priv)
1385 {
1386 struct drm_mode_get_connector *out_resp = data;
1387 struct drm_mode_object *obj;
1388 struct drm_connector *connector;
1389 struct drm_display_mode *mode;
1390 int mode_count = 0;
1391 int props_count = 0;
1392 int encoders_count = 0;
1393 int ret = 0;
1394 int copied = 0;
1395 int i;
1396 struct drm_mode_modeinfo u_mode;
1397 struct drm_mode_modeinfo __user *mode_ptr;
1398 uint32_t __user *prop_ptr;
1399 uint64_t __user *prop_values;
1400 uint32_t __user *encoder_ptr;
1401
1402 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1403 return -EINVAL;
1404
1405 memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
1406
1407 DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id);
1408
1409 mutex_lock(&dev->mode_config.mutex);
1410
1411 obj = drm_mode_object_find(dev, out_resp->connector_id,
1412 DRM_MODE_OBJECT_CONNECTOR);
1413 if (!obj) {
1414 ret = -EINVAL;
1415 goto out;
1416 }
1417 connector = obj_to_connector(obj);
1418
1419 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1420 if (connector->property_ids[i] != 0) {
1421 props_count++;
1422 }
1423 }
1424
1425 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1426 if (connector->encoder_ids[i] != 0) {
1427 encoders_count++;
1428 }
1429 }
1430
1431 if (out_resp->count_modes == 0) {
1432 connector->funcs->fill_modes(connector,
1433 dev->mode_config.max_width,
1434 dev->mode_config.max_height);
1435 }
1436
1437 /* delayed so we get modes regardless of pre-fill_modes state */
1438 list_for_each_entry(mode, &connector->modes, head)
1439 mode_count++;
1440
1441 out_resp->connector_id = connector->base.id;
1442 out_resp->connector_type = connector->connector_type;
1443 out_resp->connector_type_id = connector->connector_type_id;
1444 out_resp->mm_width = connector->display_info.width_mm;
1445 out_resp->mm_height = connector->display_info.height_mm;
1446 out_resp->subpixel = connector->display_info.subpixel_order;
1447 out_resp->connection = connector->status;
1448 if (connector->encoder)
1449 out_resp->encoder_id = connector->encoder->base.id;
1450 else
1451 out_resp->encoder_id = 0;
1452
1453 /*
1454 * This ioctl is called twice, once to determine how much space is
1455 * needed, and the 2nd time to fill it.
1456 */
1457 if ((out_resp->count_modes >= mode_count) && mode_count) {
1458 copied = 0;
1459 mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr;
1460 list_for_each_entry(mode, &connector->modes, head) {
1461 drm_crtc_convert_to_umode(&u_mode, mode);
1462 if (copy_to_user(mode_ptr + copied,
1463 &u_mode, sizeof(u_mode))) {
1464 ret = -EFAULT;
1465 goto out;
1466 }
1467 copied++;
1468 }
1469 }
1470 out_resp->count_modes = mode_count;
1471
1472 if ((out_resp->count_props >= props_count) && props_count) {
1473 copied = 0;
1474 prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr);
1475 prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr);
1476 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1477 if (connector->property_ids[i] != 0) {
1478 if (put_user(connector->property_ids[i],
1479 prop_ptr + copied)) {
1480 ret = -EFAULT;
1481 goto out;
1482 }
1483
1484 if (put_user(connector->property_values[i],
1485 prop_values + copied)) {
1486 ret = -EFAULT;
1487 goto out;
1488 }
1489 copied++;
1490 }
1491 }
1492 }
1493 out_resp->count_props = props_count;
1494
1495 if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
1496 copied = 0;
1497 encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr);
1498 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1499 if (connector->encoder_ids[i] != 0) {
1500 if (put_user(connector->encoder_ids[i],
1501 encoder_ptr + copied)) {
1502 ret = -EFAULT;
1503 goto out;
1504 }
1505 copied++;
1506 }
1507 }
1508 }
1509 out_resp->count_encoders = encoders_count;
1510
1511 out:
1512 mutex_unlock(&dev->mode_config.mutex);
1513 return ret;
1514 }
1515
1516 int drm_mode_getencoder(struct drm_device *dev, void *data,
1517 struct drm_file *file_priv)
1518 {
1519 struct drm_mode_get_encoder *enc_resp = data;
1520 struct drm_mode_object *obj;
1521 struct drm_encoder *encoder;
1522 int ret = 0;
1523
1524 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1525 return -EINVAL;
1526
1527 mutex_lock(&dev->mode_config.mutex);
1528 obj = drm_mode_object_find(dev, enc_resp->encoder_id,
1529 DRM_MODE_OBJECT_ENCODER);
1530 if (!obj) {
1531 ret = -EINVAL;
1532 goto out;
1533 }
1534 encoder = obj_to_encoder(obj);
1535
1536 if (encoder->crtc)
1537 enc_resp->crtc_id = encoder->crtc->base.id;
1538 else
1539 enc_resp->crtc_id = 0;
1540 enc_resp->encoder_type = encoder->encoder_type;
1541 enc_resp->encoder_id = encoder->base.id;
1542 enc_resp->possible_crtcs = encoder->possible_crtcs;
1543 enc_resp->possible_clones = encoder->possible_clones;
1544
1545 out:
1546 mutex_unlock(&dev->mode_config.mutex);
1547 return ret;
1548 }
1549
1550 /**
1551 * drm_mode_getplane_res - get plane info
1552 * @dev: DRM device
1553 * @data: ioctl data
1554 * @file_priv: DRM file info
1555 *
1556 * Return an plane count and set of IDs.
1557 */
1558 int drm_mode_getplane_res(struct drm_device *dev, void *data,
1559 struct drm_file *file_priv)
1560 {
1561 struct drm_mode_get_plane_res *plane_resp = data;
1562 struct drm_mode_config *config;
1563 struct drm_plane *plane;
1564 uint32_t __user *plane_ptr;
1565 int copied = 0, ret = 0;
1566
1567 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1568 return -EINVAL;
1569
1570 mutex_lock(&dev->mode_config.mutex);
1571 config = &dev->mode_config;
1572
1573 /*
1574 * This ioctl is called twice, once to determine how much space is
1575 * needed, and the 2nd time to fill it.
1576 */
1577 if (config->num_plane &&
1578 (plane_resp->count_planes >= config->num_plane)) {
1579 plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr;
1580
1581 list_for_each_entry(plane, &config->plane_list, head) {
1582 if (put_user(plane->base.id, plane_ptr + copied)) {
1583 ret = -EFAULT;
1584 goto out;
1585 }
1586 copied++;
1587 }
1588 }
1589 plane_resp->count_planes = config->num_plane;
1590
1591 out:
1592 mutex_unlock(&dev->mode_config.mutex);
1593 return ret;
1594 }
1595
1596 /**
1597 * drm_mode_getplane - get plane info
1598 * @dev: DRM device
1599 * @data: ioctl data
1600 * @file_priv: DRM file info
1601 *
1602 * Return plane info, including formats supported, gamma size, any
1603 * current fb, etc.
1604 */
1605 int drm_mode_getplane(struct drm_device *dev, void *data,
1606 struct drm_file *file_priv)
1607 {
1608 struct drm_mode_get_plane *plane_resp = data;
1609 struct drm_mode_object *obj;
1610 struct drm_plane *plane;
1611 uint32_t __user *format_ptr;
1612 int ret = 0;
1613
1614 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1615 return -EINVAL;
1616
1617 mutex_lock(&dev->mode_config.mutex);
1618 obj = drm_mode_object_find(dev, plane_resp->plane_id,
1619 DRM_MODE_OBJECT_PLANE);
1620 if (!obj) {
1621 ret = -ENOENT;
1622 goto out;
1623 }
1624 plane = obj_to_plane(obj);
1625
1626 if (plane->crtc)
1627 plane_resp->crtc_id = plane->crtc->base.id;
1628 else
1629 plane_resp->crtc_id = 0;
1630
1631 if (plane->fb)
1632 plane_resp->fb_id = plane->fb->base.id;
1633 else
1634 plane_resp->fb_id = 0;
1635
1636 plane_resp->plane_id = plane->base.id;
1637 plane_resp->possible_crtcs = plane->possible_crtcs;
1638 plane_resp->gamma_size = plane->gamma_size;
1639
1640 /*
1641 * This ioctl is called twice, once to determine how much space is
1642 * needed, and the 2nd time to fill it.
1643 */
1644 if (plane->format_count &&
1645 (plane_resp->count_format_types >= plane->format_count)) {
1646 format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr;
1647 if (copy_to_user(format_ptr,
1648 plane->format_types,
1649 sizeof(uint32_t) * plane->format_count)) {
1650 ret = -EFAULT;
1651 goto out;
1652 }
1653 }
1654 plane_resp->count_format_types = plane->format_count;
1655
1656 out:
1657 mutex_unlock(&dev->mode_config.mutex);
1658 return ret;
1659 }
1660
1661 /**
1662 * drm_mode_setplane - set up or tear down an plane
1663 * @dev: DRM device
1664 * @data: ioctl data*
1665 * @file_prive: DRM file info
1666 *
1667 * Set plane info, including placement, fb, scaling, and other factors.
1668 * Or pass a NULL fb to disable.
1669 */
1670 int drm_mode_setplane(struct drm_device *dev, void *data,
1671 struct drm_file *file_priv)
1672 {
1673 struct drm_mode_set_plane *plane_req = data;
1674 struct drm_mode_object *obj;
1675 struct drm_plane *plane;
1676 struct drm_crtc *crtc;
1677 struct drm_framebuffer *fb;
1678 int ret = 0;
1679 unsigned int fb_width, fb_height;
1680 int i;
1681
1682 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1683 return -EINVAL;
1684
1685 mutex_lock(&dev->mode_config.mutex);
1686
1687 /*
1688 * First, find the plane, crtc, and fb objects. If not available,
1689 * we don't bother to call the driver.
1690 */
1691 obj = drm_mode_object_find(dev, plane_req->plane_id,
1692 DRM_MODE_OBJECT_PLANE);
1693 if (!obj) {
1694 DRM_DEBUG_KMS("Unknown plane ID %d\n",
1695 plane_req->plane_id);
1696 ret = -ENOENT;
1697 goto out;
1698 }
1699 plane = obj_to_plane(obj);
1700
1701 /* No fb means shut it down */
1702 if (!plane_req->fb_id) {
1703 plane->funcs->disable_plane(plane);
1704 plane->crtc = NULL;
1705 plane->fb = NULL;
1706 goto out;
1707 }
1708
1709 obj = drm_mode_object_find(dev, plane_req->crtc_id,
1710 DRM_MODE_OBJECT_CRTC);
1711 if (!obj) {
1712 DRM_DEBUG_KMS("Unknown crtc ID %d\n",
1713 plane_req->crtc_id);
1714 ret = -ENOENT;
1715 goto out;
1716 }
1717 crtc = obj_to_crtc(obj);
1718
1719 obj = drm_mode_object_find(dev, plane_req->fb_id,
1720 DRM_MODE_OBJECT_FB);
1721 if (!obj) {
1722 DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
1723 plane_req->fb_id);
1724 ret = -ENOENT;
1725 goto out;
1726 }
1727 fb = obj_to_fb(obj);
1728
1729 /* Check whether this plane supports the fb pixel format. */
1730 for (i = 0; i < plane->format_count; i++)
1731 if (fb->pixel_format == plane->format_types[i])
1732 break;
1733 if (i == plane->format_count) {
1734 DRM_DEBUG_KMS("Invalid pixel format 0x%08x\n", fb->pixel_format);
1735 ret = -EINVAL;
1736 goto out;
1737 }
1738
1739 fb_width = fb->width << 16;
1740 fb_height = fb->height << 16;
1741
1742 /* Make sure source coordinates are inside the fb. */
1743 if (plane_req->src_w > fb_width ||
1744 plane_req->src_x > fb_width - plane_req->src_w ||
1745 plane_req->src_h > fb_height ||
1746 plane_req->src_y > fb_height - plane_req->src_h) {
1747 DRM_DEBUG_KMS("Invalid source coordinates "
1748 "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n",
1749 plane_req->src_w >> 16,
1750 ((plane_req->src_w & 0xffff) * 15625) >> 10,
1751 plane_req->src_h >> 16,
1752 ((plane_req->src_h & 0xffff) * 15625) >> 10,
1753 plane_req->src_x >> 16,
1754 ((plane_req->src_x & 0xffff) * 15625) >> 10,
1755 plane_req->src_y >> 16,
1756 ((plane_req->src_y & 0xffff) * 15625) >> 10);
1757 ret = -ENOSPC;
1758 goto out;
1759 }
1760
1761 /* Give drivers some help against integer overflows */
1762 if (plane_req->crtc_w > INT_MAX ||
1763 plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w ||
1764 plane_req->crtc_h > INT_MAX ||
1765 plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) {
1766 DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
1767 plane_req->crtc_w, plane_req->crtc_h,
1768 plane_req->crtc_x, plane_req->crtc_y);
1769 ret = -ERANGE;
1770 goto out;
1771 }
1772
1773 ret = plane->funcs->update_plane(plane, crtc, fb,
1774 plane_req->crtc_x, plane_req->crtc_y,
1775 plane_req->crtc_w, plane_req->crtc_h,
1776 plane_req->src_x, plane_req->src_y,
1777 plane_req->src_w, plane_req->src_h);
1778 if (!ret) {
1779 plane->crtc = crtc;
1780 plane->fb = fb;
1781 }
1782
1783 out:
1784 mutex_unlock(&dev->mode_config.mutex);
1785
1786 return ret;
1787 }
1788
1789 /**
1790 * drm_mode_setcrtc - set CRTC configuration
1791 * @inode: inode from the ioctl
1792 * @filp: file * from the ioctl
1793 * @cmd: cmd from ioctl
1794 * @arg: arg from ioctl
1795 *
1796 * LOCKING:
1797 * Caller? (FIXME)
1798 *
1799 * Build a new CRTC configuration based on user request.
1800 *
1801 * Called by the user via ioctl.
1802 *
1803 * RETURNS:
1804 * Zero on success, errno on failure.
1805 */
1806 int drm_mode_setcrtc(struct drm_device *dev, void *data,
1807 struct drm_file *file_priv)
1808 {
1809 struct drm_mode_config *config = &dev->mode_config;
1810 struct drm_mode_crtc *crtc_req = data;
1811 struct drm_mode_object *obj;
1812 struct drm_crtc *crtc, *crtcfb;
1813 struct drm_connector **connector_set = NULL, *connector;
1814 struct drm_framebuffer *fb = NULL;
1815 struct drm_display_mode *mode = NULL;
1816 struct drm_mode_set set;
1817 uint32_t __user *set_connectors_ptr;
1818 int ret = 0;
1819 int i;
1820
1821 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1822 return -EINVAL;
1823
1824 mutex_lock(&dev->mode_config.mutex);
1825 obj = drm_mode_object_find(dev, crtc_req->crtc_id,
1826 DRM_MODE_OBJECT_CRTC);
1827 if (!obj) {
1828 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
1829 ret = -EINVAL;
1830 goto out;
1831 }
1832 crtc = obj_to_crtc(obj);
1833 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
1834
1835 if (crtc_req->mode_valid) {
1836 /* If we have a mode we need a framebuffer. */
1837 /* If we pass -1, set the mode with the currently bound fb */
1838 if (crtc_req->fb_id == -1) {
1839 list_for_each_entry(crtcfb,
1840 &dev->mode_config.crtc_list, head) {
1841 if (crtcfb == crtc) {
1842 DRM_DEBUG_KMS("Using current fb for "
1843 "setmode\n");
1844 fb = crtc->fb;
1845 }
1846 }
1847 } else {
1848 obj = drm_mode_object_find(dev, crtc_req->fb_id,
1849 DRM_MODE_OBJECT_FB);
1850 if (!obj) {
1851 DRM_DEBUG_KMS("Unknown FB ID%d\n",
1852 crtc_req->fb_id);
1853 ret = -EINVAL;
1854 goto out;
1855 }
1856 fb = obj_to_fb(obj);
1857 }
1858
1859 mode = drm_mode_create(dev);
1860 drm_crtc_convert_umode(mode, &crtc_req->mode);
1861 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
1862 }
1863
1864 if (crtc_req->count_connectors == 0 && mode) {
1865 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
1866 ret = -EINVAL;
1867 goto out;
1868 }
1869
1870 if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
1871 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
1872 crtc_req->count_connectors);
1873 ret = -EINVAL;
1874 goto out;
1875 }
1876
1877 if (crtc_req->count_connectors > 0) {
1878 u32 out_id;
1879
1880 /* Avoid unbounded kernel memory allocation */
1881 if (crtc_req->count_connectors > config->num_connector) {
1882 ret = -EINVAL;
1883 goto out;
1884 }
1885
1886 connector_set = kmalloc(crtc_req->count_connectors *
1887 sizeof(struct drm_connector *),
1888 GFP_KERNEL);
1889 if (!connector_set) {
1890 ret = -ENOMEM;
1891 goto out;
1892 }
1893
1894 for (i = 0; i < crtc_req->count_connectors; i++) {
1895 set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr;
1896 if (get_user(out_id, &set_connectors_ptr[i])) {
1897 ret = -EFAULT;
1898 goto out;
1899 }
1900
1901 obj = drm_mode_object_find(dev, out_id,
1902 DRM_MODE_OBJECT_CONNECTOR);
1903 if (!obj) {
1904 DRM_DEBUG_KMS("Connector id %d unknown\n",
1905 out_id);
1906 ret = -EINVAL;
1907 goto out;
1908 }
1909 connector = obj_to_connector(obj);
1910 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1911 connector->base.id,
1912 drm_get_connector_name(connector));
1913
1914 connector_set[i] = connector;
1915 }
1916 }
1917
1918 set.crtc = crtc;
1919 set.x = crtc_req->x;
1920 set.y = crtc_req->y;
1921 set.mode = mode;
1922 set.connectors = connector_set;
1923 set.num_connectors = crtc_req->count_connectors;
1924 set.fb = fb;
1925 ret = crtc->funcs->set_config(&set);
1926
1927 out:
1928 kfree(connector_set);
1929 mutex_unlock(&dev->mode_config.mutex);
1930 return ret;
1931 }
1932
1933 int drm_mode_cursor_ioctl(struct drm_device *dev,
1934 void *data, struct drm_file *file_priv)
1935 {
1936 struct drm_mode_cursor *req = data;
1937 struct drm_mode_object *obj;
1938 struct drm_crtc *crtc;
1939 int ret = 0;
1940
1941 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1942 return -EINVAL;
1943
1944 if (!req->flags)
1945 return -EINVAL;
1946
1947 mutex_lock(&dev->mode_config.mutex);
1948 obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
1949 if (!obj) {
1950 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
1951 ret = -EINVAL;
1952 goto out;
1953 }
1954 crtc = obj_to_crtc(obj);
1955
1956 if (req->flags & DRM_MODE_CURSOR_BO) {
1957 if (!crtc->funcs->cursor_set) {
1958 ret = -ENXIO;
1959 goto out;
1960 }
1961 /* Turns off the cursor if handle is 0 */
1962 ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
1963 req->width, req->height);
1964 }
1965
1966 if (req->flags & DRM_MODE_CURSOR_MOVE) {
1967 if (crtc->funcs->cursor_move) {
1968 ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
1969 } else {
1970 ret = -EFAULT;
1971 goto out;
1972 }
1973 }
1974 out:
1975 mutex_unlock(&dev->mode_config.mutex);
1976 return ret;
1977 }
1978
1979 /* Original addfb only supported RGB formats, so figure out which one */
1980 uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth)
1981 {
1982 uint32_t fmt;
1983
1984 switch (bpp) {
1985 case 8:
1986 fmt = DRM_FORMAT_RGB332;
1987 break;
1988 case 16:
1989 if (depth == 15)
1990 fmt = DRM_FORMAT_XRGB1555;
1991 else
1992 fmt = DRM_FORMAT_RGB565;
1993 break;
1994 case 24:
1995 fmt = DRM_FORMAT_RGB888;
1996 break;
1997 case 32:
1998 if (depth == 24)
1999 fmt = DRM_FORMAT_XRGB8888;
2000 else if (depth == 30)
2001 fmt = DRM_FORMAT_XRGB2101010;
2002 else
2003 fmt = DRM_FORMAT_ARGB8888;
2004 break;
2005 default:
2006 DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n");
2007 fmt = DRM_FORMAT_XRGB8888;
2008 break;
2009 }
2010
2011 return fmt;
2012 }
2013 EXPORT_SYMBOL(drm_mode_legacy_fb_format);
2014
2015 /**
2016 * drm_mode_addfb - add an FB to the graphics configuration
2017 * @inode: inode from the ioctl
2018 * @filp: file * from the ioctl
2019 * @cmd: cmd from ioctl
2020 * @arg: arg from ioctl
2021 *
2022 * LOCKING:
2023 * Takes mode config lock.
2024 *
2025 * Add a new FB to the specified CRTC, given a user request.
2026 *
2027 * Called by the user via ioctl.
2028 *
2029 * RETURNS:
2030 * Zero on success, errno on failure.
2031 */
2032 int drm_mode_addfb(struct drm_device *dev,
2033 void *data, struct drm_file *file_priv)
2034 {
2035 struct drm_mode_fb_cmd *or = data;
2036 struct drm_mode_fb_cmd2 r = {};
2037 struct drm_mode_config *config = &dev->mode_config;
2038 struct drm_framebuffer *fb;
2039 int ret = 0;
2040
2041 /* Use new struct with format internally */
2042 r.fb_id = or->fb_id;
2043 r.width = or->width;
2044 r.height = or->height;
2045 r.pitches[0] = or->pitch;
2046 r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth);
2047 r.handles[0] = or->handle;
2048
2049 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2050 return -EINVAL;
2051
2052 if ((config->min_width > r.width) || (r.width > config->max_width))
2053 return -EINVAL;
2054
2055 if ((config->min_height > r.height) || (r.height > config->max_height))
2056 return -EINVAL;
2057
2058 mutex_lock(&dev->mode_config.mutex);
2059
2060 /* TODO check buffer is sufficiently large */
2061 /* TODO setup destructor callback */
2062
2063 fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r);
2064 if (IS_ERR(fb)) {
2065 DRM_ERROR("could not create framebuffer\n");
2066 ret = PTR_ERR(fb);
2067 goto out;
2068 }
2069
2070 or->fb_id = fb->base.id;
2071 list_add(&fb->filp_head, &file_priv->fbs);
2072 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
2073
2074 out:
2075 mutex_unlock(&dev->mode_config.mutex);
2076 return ret;
2077 }
2078
2079 static int format_check(struct drm_mode_fb_cmd2 *r)
2080 {
2081 uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN;
2082
2083 switch (format) {
2084 case DRM_FORMAT_C8:
2085 case DRM_FORMAT_RGB332:
2086 case DRM_FORMAT_BGR233:
2087 case DRM_FORMAT_XRGB4444:
2088 case DRM_FORMAT_XBGR4444:
2089 case DRM_FORMAT_RGBX4444:
2090 case DRM_FORMAT_BGRX4444:
2091 case DRM_FORMAT_ARGB4444:
2092 case DRM_FORMAT_ABGR4444:
2093 case DRM_FORMAT_RGBA4444:
2094 case DRM_FORMAT_BGRA4444:
2095 case DRM_FORMAT_XRGB1555:
2096 case DRM_FORMAT_XBGR1555:
2097 case DRM_FORMAT_RGBX5551:
2098 case DRM_FORMAT_BGRX5551:
2099 case DRM_FORMAT_ARGB1555:
2100 case DRM_FORMAT_ABGR1555:
2101 case DRM_FORMAT_RGBA5551:
2102 case DRM_FORMAT_BGRA5551:
2103 case DRM_FORMAT_RGB565:
2104 case DRM_FORMAT_BGR565:
2105 case DRM_FORMAT_RGB888:
2106 case DRM_FORMAT_BGR888:
2107 case DRM_FORMAT_XRGB8888:
2108 case DRM_FORMAT_XBGR8888:
2109 case DRM_FORMAT_RGBX8888:
2110 case DRM_FORMAT_BGRX8888:
2111 case DRM_FORMAT_ARGB8888:
2112 case DRM_FORMAT_ABGR8888:
2113 case DRM_FORMAT_RGBA8888:
2114 case DRM_FORMAT_BGRA8888:
2115 case DRM_FORMAT_XRGB2101010:
2116 case DRM_FORMAT_XBGR2101010:
2117 case DRM_FORMAT_RGBX1010102:
2118 case DRM_FORMAT_BGRX1010102:
2119 case DRM_FORMAT_ARGB2101010:
2120 case DRM_FORMAT_ABGR2101010:
2121 case DRM_FORMAT_RGBA1010102:
2122 case DRM_FORMAT_BGRA1010102:
2123 case DRM_FORMAT_YUYV:
2124 case DRM_FORMAT_YVYU:
2125 case DRM_FORMAT_UYVY:
2126 case DRM_FORMAT_VYUY:
2127 case DRM_FORMAT_AYUV:
2128 case DRM_FORMAT_NV12:
2129 case DRM_FORMAT_NV21:
2130 case DRM_FORMAT_NV16:
2131 case DRM_FORMAT_NV61:
2132 case DRM_FORMAT_YUV410:
2133 case DRM_FORMAT_YVU410:
2134 case DRM_FORMAT_YUV411:
2135 case DRM_FORMAT_YVU411:
2136 case DRM_FORMAT_YUV420:
2137 case DRM_FORMAT_YVU420:
2138 case DRM_FORMAT_YUV422:
2139 case DRM_FORMAT_YVU422:
2140 case DRM_FORMAT_YUV444:
2141 case DRM_FORMAT_YVU444:
2142 return 0;
2143 default:
2144 return -EINVAL;
2145 }
2146 }
2147
2148 /**
2149 * drm_mode_addfb2 - add an FB to the graphics configuration
2150 * @inode: inode from the ioctl
2151 * @filp: file * from the ioctl
2152 * @cmd: cmd from ioctl
2153 * @arg: arg from ioctl
2154 *
2155 * LOCKING:
2156 * Takes mode config lock.
2157 *
2158 * Add a new FB to the specified CRTC, given a user request with format.
2159 *
2160 * Called by the user via ioctl.
2161 *
2162 * RETURNS:
2163 * Zero on success, errno on failure.
2164 */
2165 int drm_mode_addfb2(struct drm_device *dev,
2166 void *data, struct drm_file *file_priv)
2167 {
2168 struct drm_mode_fb_cmd2 *r = data;
2169 struct drm_mode_config *config = &dev->mode_config;
2170 struct drm_framebuffer *fb;
2171 int ret = 0;
2172
2173 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2174 return -EINVAL;
2175
2176 if ((config->min_width > r->width) || (r->width > config->max_width)) {
2177 DRM_ERROR("bad framebuffer width %d, should be >= %d && <= %d\n",
2178 r->width, config->min_width, config->max_width);
2179 return -EINVAL;
2180 }
2181 if ((config->min_height > r->height) || (r->height > config->max_height)) {
2182 DRM_ERROR("bad framebuffer height %d, should be >= %d && <= %d\n",
2183 r->height, config->min_height, config->max_height);
2184 return -EINVAL;
2185 }
2186
2187 ret = format_check(r);
2188 if (ret) {
2189 DRM_ERROR("bad framebuffer format 0x%08x\n", r->pixel_format);
2190 return ret;
2191 }
2192
2193 mutex_lock(&dev->mode_config.mutex);
2194
2195 fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
2196 if (IS_ERR(fb)) {
2197 DRM_ERROR("could not create framebuffer\n");
2198 ret = PTR_ERR(fb);
2199 goto out;
2200 }
2201
2202 r->fb_id = fb->base.id;
2203 list_add(&fb->filp_head, &file_priv->fbs);
2204 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
2205
2206 out:
2207 mutex_unlock(&dev->mode_config.mutex);
2208 return ret;
2209 }
2210
2211 /**
2212 * drm_mode_rmfb - remove an FB from the configuration
2213 * @inode: inode from the ioctl
2214 * @filp: file * from the ioctl
2215 * @cmd: cmd from ioctl
2216 * @arg: arg from ioctl
2217 *
2218 * LOCKING:
2219 * Takes mode config lock.
2220 *
2221 * Remove the FB specified by the user.
2222 *
2223 * Called by the user via ioctl.
2224 *
2225 * RETURNS:
2226 * Zero on success, errno on failure.
2227 */
2228 int drm_mode_rmfb(struct drm_device *dev,
2229 void *data, struct drm_file *file_priv)
2230 {
2231 struct drm_mode_object *obj;
2232 struct drm_framebuffer *fb = NULL;
2233 struct drm_framebuffer *fbl = NULL;
2234 uint32_t *id = data;
2235 int ret = 0;
2236 int found = 0;
2237
2238 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2239 return -EINVAL;
2240
2241 mutex_lock(&dev->mode_config.mutex);
2242 obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB);
2243 /* TODO check that we really get a framebuffer back. */
2244 if (!obj) {
2245 ret = -EINVAL;
2246 goto out;
2247 }
2248 fb = obj_to_fb(obj);
2249
2250 list_for_each_entry(fbl, &file_priv->fbs, filp_head)
2251 if (fb == fbl)
2252 found = 1;
2253
2254 if (!found) {
2255 ret = -EINVAL;
2256 goto out;
2257 }
2258
2259 /* TODO release all crtc connected to the framebuffer */
2260 /* TODO unhock the destructor from the buffer object */
2261
2262 list_del(&fb->filp_head);
2263 fb->funcs->destroy(fb);
2264
2265 out:
2266 mutex_unlock(&dev->mode_config.mutex);
2267 return ret;
2268 }
2269
2270 /**
2271 * drm_mode_getfb - get FB info
2272 * @inode: inode from the ioctl
2273 * @filp: file * from the ioctl
2274 * @cmd: cmd from ioctl
2275 * @arg: arg from ioctl
2276 *
2277 * LOCKING:
2278 * Caller? (FIXME)
2279 *
2280 * Lookup the FB given its ID and return info about it.
2281 *
2282 * Called by the user via ioctl.
2283 *
2284 * RETURNS:
2285 * Zero on success, errno on failure.
2286 */
2287 int drm_mode_getfb(struct drm_device *dev,
2288 void *data, struct drm_file *file_priv)
2289 {
2290 struct drm_mode_fb_cmd *r = data;
2291 struct drm_mode_object *obj;
2292 struct drm_framebuffer *fb;
2293 int ret = 0;
2294
2295 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2296 return -EINVAL;
2297
2298 mutex_lock(&dev->mode_config.mutex);
2299 obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
2300 if (!obj) {
2301 ret = -EINVAL;
2302 goto out;
2303 }
2304 fb = obj_to_fb(obj);
2305
2306 r->height = fb->height;
2307 r->width = fb->width;
2308 r->depth = fb->depth;
2309 r->bpp = fb->bits_per_pixel;
2310 r->pitch = fb->pitches[0];
2311 fb->funcs->create_handle(fb, file_priv, &r->handle);
2312
2313 out:
2314 mutex_unlock(&dev->mode_config.mutex);
2315 return ret;
2316 }
2317
2318 int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
2319 void *data, struct drm_file *file_priv)
2320 {
2321 struct drm_clip_rect __user *clips_ptr;
2322 struct drm_clip_rect *clips = NULL;
2323 struct drm_mode_fb_dirty_cmd *r = data;
2324 struct drm_mode_object *obj;
2325 struct drm_framebuffer *fb;
2326 unsigned flags;
2327 int num_clips;
2328 int ret = 0;
2329
2330 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2331 return -EINVAL;
2332
2333 mutex_lock(&dev->mode_config.mutex);
2334 obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
2335 if (!obj) {
2336 ret = -EINVAL;
2337 goto out_err1;
2338 }
2339 fb = obj_to_fb(obj);
2340
2341 num_clips = r->num_clips;
2342 clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr;
2343
2344 if (!num_clips != !clips_ptr) {
2345 ret = -EINVAL;
2346 goto out_err1;
2347 }
2348
2349 flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
2350
2351 /* If userspace annotates copy, clips must come in pairs */
2352 if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
2353 ret = -EINVAL;
2354 goto out_err1;
2355 }
2356
2357 if (num_clips && clips_ptr) {
2358 if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) {
2359 ret = -EINVAL;
2360 goto out_err1;
2361 }
2362 clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
2363 if (!clips) {
2364 ret = -ENOMEM;
2365 goto out_err1;
2366 }
2367
2368 ret = copy_from_user(clips, clips_ptr,
2369 num_clips * sizeof(*clips));
2370 if (ret) {
2371 ret = -EFAULT;
2372 goto out_err2;
2373 }
2374 }
2375
2376 if (fb->funcs->dirty) {
2377 ret = fb->funcs->dirty(fb, file_priv, flags, r->color,
2378 clips, num_clips);
2379 } else {
2380 ret = -ENOSYS;
2381 goto out_err2;
2382 }
2383
2384 out_err2:
2385 kfree(clips);
2386 out_err1:
2387 mutex_unlock(&dev->mode_config.mutex);
2388 return ret;
2389 }
2390
2391
2392 /**
2393 * drm_fb_release - remove and free the FBs on this file
2394 * @filp: file * from the ioctl
2395 *
2396 * LOCKING:
2397 * Takes mode config lock.
2398 *
2399 * Destroy all the FBs associated with @filp.
2400 *
2401 * Called by the user via ioctl.
2402 *
2403 * RETURNS:
2404 * Zero on success, errno on failure.
2405 */
2406 void drm_fb_release(struct drm_file *priv)
2407 {
2408 struct drm_device *dev = priv->minor->dev;
2409 struct drm_framebuffer *fb, *tfb;
2410
2411 mutex_lock(&dev->mode_config.mutex);
2412 list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
2413 list_del(&fb->filp_head);
2414 fb->funcs->destroy(fb);
2415 }
2416 mutex_unlock(&dev->mode_config.mutex);
2417 }
2418
2419 /**
2420 * drm_mode_attachmode - add a mode to the user mode list
2421 * @dev: DRM device
2422 * @connector: connector to add the mode to
2423 * @mode: mode to add
2424 *
2425 * Add @mode to @connector's user mode list.
2426 */
2427 static int drm_mode_attachmode(struct drm_device *dev,
2428 struct drm_connector *connector,
2429 struct drm_display_mode *mode)
2430 {
2431 int ret = 0;
2432
2433 list_add_tail(&mode->head, &connector->user_modes);
2434 return ret;
2435 }
2436
2437 int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc,
2438 struct drm_display_mode *mode)
2439 {
2440 struct drm_connector *connector;
2441 int ret = 0;
2442 struct drm_display_mode *dup_mode;
2443 int need_dup = 0;
2444 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2445 if (!connector->encoder)
2446 break;
2447 if (connector->encoder->crtc == crtc) {
2448 if (need_dup)
2449 dup_mode = drm_mode_duplicate(dev, mode);
2450 else
2451 dup_mode = mode;
2452 ret = drm_mode_attachmode(dev, connector, dup_mode);
2453 if (ret)
2454 return ret;
2455 need_dup = 1;
2456 }
2457 }
2458 return 0;
2459 }
2460 EXPORT_SYMBOL(drm_mode_attachmode_crtc);
2461
2462 static int drm_mode_detachmode(struct drm_device *dev,
2463 struct drm_connector *connector,
2464 struct drm_display_mode *mode)
2465 {
2466 int found = 0;
2467 int ret = 0;
2468 struct drm_display_mode *match_mode, *t;
2469
2470 list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) {
2471 if (drm_mode_equal(match_mode, mode)) {
2472 list_del(&match_mode->head);
2473 drm_mode_destroy(dev, match_mode);
2474 found = 1;
2475 break;
2476 }
2477 }
2478
2479 if (!found)
2480 ret = -EINVAL;
2481
2482 return ret;
2483 }
2484
2485 int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode)
2486 {
2487 struct drm_connector *connector;
2488
2489 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2490 drm_mode_detachmode(dev, connector, mode);
2491 }
2492 return 0;
2493 }
2494 EXPORT_SYMBOL(drm_mode_detachmode_crtc);
2495
2496 /**
2497 * drm_fb_attachmode - Attach a user mode to an connector
2498 * @inode: inode from the ioctl
2499 * @filp: file * from the ioctl
2500 * @cmd: cmd from ioctl
2501 * @arg: arg from ioctl
2502 *
2503 * This attaches a user specified mode to an connector.
2504 * Called by the user via ioctl.
2505 *
2506 * RETURNS:
2507 * Zero on success, errno on failure.
2508 */
2509 int drm_mode_attachmode_ioctl(struct drm_device *dev,
2510 void *data, struct drm_file *file_priv)
2511 {
2512 struct drm_mode_mode_cmd *mode_cmd = data;
2513 struct drm_connector *connector;
2514 struct drm_display_mode *mode;
2515 struct drm_mode_object *obj;
2516 struct drm_mode_modeinfo *umode = &mode_cmd->mode;
2517 int ret = 0;
2518
2519 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2520 return -EINVAL;
2521
2522 mutex_lock(&dev->mode_config.mutex);
2523
2524 obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2525 if (!obj) {
2526 ret = -EINVAL;
2527 goto out;
2528 }
2529 connector = obj_to_connector(obj);
2530
2531 mode = drm_mode_create(dev);
2532 if (!mode) {
2533 ret = -ENOMEM;
2534 goto out;
2535 }
2536
2537 drm_crtc_convert_umode(mode, umode);
2538
2539 ret = drm_mode_attachmode(dev, connector, mode);
2540 out:
2541 mutex_unlock(&dev->mode_config.mutex);
2542 return ret;
2543 }
2544
2545
2546 /**
2547 * drm_fb_detachmode - Detach a user specified mode from an connector
2548 * @inode: inode from the ioctl
2549 * @filp: file * from the ioctl
2550 * @cmd: cmd from ioctl
2551 * @arg: arg from ioctl
2552 *
2553 * Called by the user via ioctl.
2554 *
2555 * RETURNS:
2556 * Zero on success, errno on failure.
2557 */
2558 int drm_mode_detachmode_ioctl(struct drm_device *dev,
2559 void *data, struct drm_file *file_priv)
2560 {
2561 struct drm_mode_object *obj;
2562 struct drm_mode_mode_cmd *mode_cmd = data;
2563 struct drm_connector *connector;
2564 struct drm_display_mode mode;
2565 struct drm_mode_modeinfo *umode = &mode_cmd->mode;
2566 int ret = 0;
2567
2568 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2569 return -EINVAL;
2570
2571 mutex_lock(&dev->mode_config.mutex);
2572
2573 obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2574 if (!obj) {
2575 ret = -EINVAL;
2576 goto out;
2577 }
2578 connector = obj_to_connector(obj);
2579
2580 drm_crtc_convert_umode(&mode, umode);
2581 ret = drm_mode_detachmode(dev, connector, &mode);
2582 out:
2583 mutex_unlock(&dev->mode_config.mutex);
2584 return ret;
2585 }
2586
2587 struct drm_property *drm_property_create(struct drm_device *dev, int flags,
2588 const char *name, int num_values)
2589 {
2590 struct drm_property *property = NULL;
2591
2592 property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
2593 if (!property)
2594 return NULL;
2595
2596 if (num_values) {
2597 property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
2598 if (!property->values)
2599 goto fail;
2600 }
2601
2602 drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
2603 property->flags = flags;
2604 property->num_values = num_values;
2605 INIT_LIST_HEAD(&property->enum_blob_list);
2606
2607 if (name) {
2608 strncpy(property->name, name, DRM_PROP_NAME_LEN);
2609 property->name[DRM_PROP_NAME_LEN-1] = '\0';
2610 }
2611
2612 list_add_tail(&property->head, &dev->mode_config.property_list);
2613 return property;
2614 fail:
2615 kfree(property);
2616 return NULL;
2617 }
2618 EXPORT_SYMBOL(drm_property_create);
2619
2620 int drm_property_add_enum(struct drm_property *property, int index,
2621 uint64_t value, const char *name)
2622 {
2623 struct drm_property_enum *prop_enum;
2624
2625 if (!(property->flags & DRM_MODE_PROP_ENUM))
2626 return -EINVAL;
2627
2628 if (!list_empty(&property->enum_blob_list)) {
2629 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2630 if (prop_enum->value == value) {
2631 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2632 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2633 return 0;
2634 }
2635 }
2636 }
2637
2638 prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
2639 if (!prop_enum)
2640 return -ENOMEM;
2641
2642 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2643 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2644 prop_enum->value = value;
2645
2646 property->values[index] = value;
2647 list_add_tail(&prop_enum->head, &property->enum_blob_list);
2648 return 0;
2649 }
2650 EXPORT_SYMBOL(drm_property_add_enum);
2651
2652 void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
2653 {
2654 struct drm_property_enum *prop_enum, *pt;
2655
2656 list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
2657 list_del(&prop_enum->head);
2658 kfree(prop_enum);
2659 }
2660
2661 if (property->num_values)
2662 kfree(property->values);
2663 drm_mode_object_put(dev, &property->base);
2664 list_del(&property->head);
2665 kfree(property);
2666 }
2667 EXPORT_SYMBOL(drm_property_destroy);
2668
2669 int drm_connector_attach_property(struct drm_connector *connector,
2670 struct drm_property *property, uint64_t init_val)
2671 {
2672 int i;
2673
2674 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2675 if (connector->property_ids[i] == 0) {
2676 connector->property_ids[i] = property->base.id;
2677 connector->property_values[i] = init_val;
2678 break;
2679 }
2680 }
2681
2682 if (i == DRM_CONNECTOR_MAX_PROPERTY)
2683 return -EINVAL;
2684 return 0;
2685 }
2686 EXPORT_SYMBOL(drm_connector_attach_property);
2687
2688 int drm_connector_property_set_value(struct drm_connector *connector,
2689 struct drm_property *property, uint64_t value)
2690 {
2691 int i;
2692
2693 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2694 if (connector->property_ids[i] == property->base.id) {
2695 connector->property_values[i] = value;
2696 break;
2697 }
2698 }
2699
2700 if (i == DRM_CONNECTOR_MAX_PROPERTY)
2701 return -EINVAL;
2702 return 0;
2703 }
2704 EXPORT_SYMBOL(drm_connector_property_set_value);
2705
2706 int drm_connector_property_get_value(struct drm_connector *connector,
2707 struct drm_property *property, uint64_t *val)
2708 {
2709 int i;
2710
2711 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2712 if (connector->property_ids[i] == property->base.id) {
2713 *val = connector->property_values[i];
2714 break;
2715 }
2716 }
2717
2718 if (i == DRM_CONNECTOR_MAX_PROPERTY)
2719 return -EINVAL;
2720 return 0;
2721 }
2722 EXPORT_SYMBOL(drm_connector_property_get_value);
2723
2724 int drm_mode_getproperty_ioctl(struct drm_device *dev,
2725 void *data, struct drm_file *file_priv)
2726 {
2727 struct drm_mode_object *obj;
2728 struct drm_mode_get_property *out_resp = data;
2729 struct drm_property *property;
2730 int enum_count = 0;
2731 int blob_count = 0;
2732 int value_count = 0;
2733 int ret = 0, i;
2734 int copied;
2735 struct drm_property_enum *prop_enum;
2736 struct drm_mode_property_enum __user *enum_ptr;
2737 struct drm_property_blob *prop_blob;
2738 uint32_t __user *blob_id_ptr;
2739 uint64_t __user *values_ptr;
2740 uint32_t __user *blob_length_ptr;
2741
2742 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2743 return -EINVAL;
2744
2745 mutex_lock(&dev->mode_config.mutex);
2746 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2747 if (!obj) {
2748 ret = -EINVAL;
2749 goto done;
2750 }
2751 property = obj_to_property(obj);
2752
2753 if (property->flags & DRM_MODE_PROP_ENUM) {
2754 list_for_each_entry(prop_enum, &property->enum_blob_list, head)
2755 enum_count++;
2756 } else if (property->flags & DRM_MODE_PROP_BLOB) {
2757 list_for_each_entry(prop_blob, &property->enum_blob_list, head)
2758 blob_count++;
2759 }
2760
2761 value_count = property->num_values;
2762
2763 strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
2764 out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
2765 out_resp->flags = property->flags;
2766
2767 if ((out_resp->count_values >= value_count) && value_count) {
2768 values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr;
2769 for (i = 0; i < value_count; i++) {
2770 if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
2771 ret = -EFAULT;
2772 goto done;
2773 }
2774 }
2775 }
2776 out_resp->count_values = value_count;
2777
2778 if (property->flags & DRM_MODE_PROP_ENUM) {
2779 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
2780 copied = 0;
2781 enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr;
2782 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2783
2784 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
2785 ret = -EFAULT;
2786 goto done;
2787 }
2788
2789 if (copy_to_user(&enum_ptr[copied].name,
2790 &prop_enum->name, DRM_PROP_NAME_LEN)) {
2791 ret = -EFAULT;
2792 goto done;
2793 }
2794 copied++;
2795 }
2796 }
2797 out_resp->count_enum_blobs = enum_count;
2798 }
2799
2800 if (property->flags & DRM_MODE_PROP_BLOB) {
2801 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
2802 copied = 0;
2803 blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr;
2804 blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr;
2805
2806 list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
2807 if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
2808 ret = -EFAULT;
2809 goto done;
2810 }
2811
2812 if (put_user(prop_blob->length, blob_length_ptr + copied)) {
2813 ret = -EFAULT;
2814 goto done;
2815 }
2816
2817 copied++;
2818 }
2819 }
2820 out_resp->count_enum_blobs = blob_count;
2821 }
2822 done:
2823 mutex_unlock(&dev->mode_config.mutex);
2824 return ret;
2825 }
2826
2827 static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
2828 void *data)
2829 {
2830 struct drm_property_blob *blob;
2831
2832 if (!length || !data)
2833 return NULL;
2834
2835 blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
2836 if (!blob)
2837 return NULL;
2838
2839 blob->data = (void *)((char *)blob + sizeof(struct drm_property_blob));
2840 blob->length = length;
2841
2842 memcpy(blob->data, data, length);
2843
2844 drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
2845
2846 list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
2847 return blob;
2848 }
2849
2850 static void drm_property_destroy_blob(struct drm_device *dev,
2851 struct drm_property_blob *blob)
2852 {
2853 drm_mode_object_put(dev, &blob->base);
2854 list_del(&blob->head);
2855 kfree(blob);
2856 }
2857
2858 int drm_mode_getblob_ioctl(struct drm_device *dev,
2859 void *data, struct drm_file *file_priv)
2860 {
2861 struct drm_mode_object *obj;
2862 struct drm_mode_get_blob *out_resp = data;
2863 struct drm_property_blob *blob;
2864 int ret = 0;
2865 void __user *blob_ptr;
2866
2867 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2868 return -EINVAL;
2869
2870 mutex_lock(&dev->mode_config.mutex);
2871 obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
2872 if (!obj) {
2873 ret = -EINVAL;
2874 goto done;
2875 }
2876 blob = obj_to_blob(obj);
2877
2878 if (out_resp->length == blob->length) {
2879 blob_ptr = (void __user *)(unsigned long)out_resp->data;
2880 if (copy_to_user(blob_ptr, blob->data, blob->length)){
2881 ret = -EFAULT;
2882 goto done;
2883 }
2884 }
2885 out_resp->length = blob->length;
2886
2887 done:
2888 mutex_unlock(&dev->mode_config.mutex);
2889 return ret;
2890 }
2891
2892 int drm_mode_connector_update_edid_property(struct drm_connector *connector,
2893 struct edid *edid)
2894 {
2895 struct drm_device *dev = connector->dev;
2896 int ret = 0, size;
2897
2898 if (connector->edid_blob_ptr)
2899 drm_property_destroy_blob(dev, connector->edid_blob_ptr);
2900
2901 /* Delete edid, when there is none. */
2902 if (!edid) {
2903 connector->edid_blob_ptr = NULL;
2904 ret = drm_connector_property_set_value(connector, dev->mode_config.edid_property, 0);
2905 return ret;
2906 }
2907
2908 size = EDID_LENGTH * (1 + edid->extensions);
2909 connector->edid_blob_ptr = drm_property_create_blob(connector->dev,
2910 size, edid);
2911
2912 ret = drm_connector_property_set_value(connector,
2913 dev->mode_config.edid_property,
2914 connector->edid_blob_ptr->base.id);
2915
2916 return ret;
2917 }
2918 EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
2919
2920 int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
2921 void *data, struct drm_file *file_priv)
2922 {
2923 struct drm_mode_connector_set_property *out_resp = data;
2924 struct drm_mode_object *obj;
2925 struct drm_property *property;
2926 struct drm_connector *connector;
2927 int ret = -EINVAL;
2928 int i;
2929
2930 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2931 return -EINVAL;
2932
2933 mutex_lock(&dev->mode_config.mutex);
2934
2935 obj = drm_mode_object_find(dev, out_resp->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2936 if (!obj) {
2937 goto out;
2938 }
2939 connector = obj_to_connector(obj);
2940
2941 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2942 if (connector->property_ids[i] == out_resp->prop_id)
2943 break;
2944 }
2945
2946 if (i == DRM_CONNECTOR_MAX_PROPERTY) {
2947 goto out;
2948 }
2949
2950 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2951 if (!obj) {
2952 goto out;
2953 }
2954 property = obj_to_property(obj);
2955
2956 if (property->flags & DRM_MODE_PROP_IMMUTABLE)
2957 goto out;
2958
2959 if (property->flags & DRM_MODE_PROP_RANGE) {
2960 if (out_resp->value < property->values[0])
2961 goto out;
2962
2963 if (out_resp->value > property->values[1])
2964 goto out;
2965 } else {
2966 int found = 0;
2967 for (i = 0; i < property->num_values; i++) {
2968 if (property->values[i] == out_resp->value) {
2969 found = 1;
2970 break;
2971 }
2972 }
2973 if (!found) {
2974 goto out;
2975 }
2976 }
2977
2978 /* Do DPMS ourselves */
2979 if (property == connector->dev->mode_config.dpms_property) {
2980 if (connector->funcs->dpms)
2981 (*connector->funcs->dpms)(connector, (int) out_resp->value);
2982 ret = 0;
2983 } else if (connector->funcs->set_property)
2984 ret = connector->funcs->set_property(connector, property, out_resp->value);
2985
2986 /* store the property value if successful */
2987 if (!ret)
2988 drm_connector_property_set_value(connector, property, out_resp->value);
2989 out:
2990 mutex_unlock(&dev->mode_config.mutex);
2991 return ret;
2992 }
2993
2994 int drm_mode_connector_attach_encoder(struct drm_connector *connector,
2995 struct drm_encoder *encoder)
2996 {
2997 int i;
2998
2999 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3000 if (connector->encoder_ids[i] == 0) {
3001 connector->encoder_ids[i] = encoder->base.id;
3002 return 0;
3003 }
3004 }
3005 return -ENOMEM;
3006 }
3007 EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
3008
3009 void drm_mode_connector_detach_encoder(struct drm_connector *connector,
3010 struct drm_encoder *encoder)
3011 {
3012 int i;
3013 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3014 if (connector->encoder_ids[i] == encoder->base.id) {
3015 connector->encoder_ids[i] = 0;
3016 if (connector->encoder == encoder)
3017 connector->encoder = NULL;
3018 break;
3019 }
3020 }
3021 }
3022 EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
3023
3024 bool drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
3025 int gamma_size)
3026 {
3027 crtc->gamma_size = gamma_size;
3028
3029 crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
3030 if (!crtc->gamma_store) {
3031 crtc->gamma_size = 0;
3032 return false;
3033 }
3034
3035 return true;
3036 }
3037 EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
3038
3039 int drm_mode_gamma_set_ioctl(struct drm_device *dev,
3040 void *data, struct drm_file *file_priv)
3041 {
3042 struct drm_mode_crtc_lut *crtc_lut = data;
3043 struct drm_mode_object *obj;
3044 struct drm_crtc *crtc;
3045 void *r_base, *g_base, *b_base;
3046 int size;
3047 int ret = 0;
3048
3049 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3050 return -EINVAL;
3051
3052 mutex_lock(&dev->mode_config.mutex);
3053 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3054 if (!obj) {
3055 ret = -EINVAL;
3056 goto out;
3057 }
3058 crtc = obj_to_crtc(obj);
3059
3060 /* memcpy into gamma store */
3061 if (crtc_lut->gamma_size != crtc->gamma_size) {
3062 ret = -EINVAL;
3063 goto out;
3064 }
3065
3066 size = crtc_lut->gamma_size * (sizeof(uint16_t));
3067 r_base = crtc->gamma_store;
3068 if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
3069 ret = -EFAULT;
3070 goto out;
3071 }
3072
3073 g_base = r_base + size;
3074 if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
3075 ret = -EFAULT;
3076 goto out;
3077 }
3078
3079 b_base = g_base + size;
3080 if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
3081 ret = -EFAULT;
3082 goto out;
3083 }
3084
3085 crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
3086
3087 out:
3088 mutex_unlock(&dev->mode_config.mutex);
3089 return ret;
3090
3091 }
3092
3093 int drm_mode_gamma_get_ioctl(struct drm_device *dev,
3094 void *data, struct drm_file *file_priv)
3095 {
3096 struct drm_mode_crtc_lut *crtc_lut = data;
3097 struct drm_mode_object *obj;
3098 struct drm_crtc *crtc;
3099 void *r_base, *g_base, *b_base;
3100 int size;
3101 int ret = 0;
3102
3103 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3104 return -EINVAL;
3105
3106 mutex_lock(&dev->mode_config.mutex);
3107 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3108 if (!obj) {
3109 ret = -EINVAL;
3110 goto out;
3111 }
3112 crtc = obj_to_crtc(obj);
3113
3114 /* memcpy into gamma store */
3115 if (crtc_lut->gamma_size != crtc->gamma_size) {
3116 ret = -EINVAL;
3117 goto out;
3118 }
3119
3120 size = crtc_lut->gamma_size * (sizeof(uint16_t));
3121 r_base = crtc->gamma_store;
3122 if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
3123 ret = -EFAULT;
3124 goto out;
3125 }
3126
3127 g_base = r_base + size;
3128 if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
3129 ret = -EFAULT;
3130 goto out;
3131 }
3132
3133 b_base = g_base + size;
3134 if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
3135 ret = -EFAULT;
3136 goto out;
3137 }
3138 out:
3139 mutex_unlock(&dev->mode_config.mutex);
3140 return ret;
3141 }
3142
3143 int drm_mode_page_flip_ioctl(struct drm_device *dev,
3144 void *data, struct drm_file *file_priv)
3145 {
3146 struct drm_mode_crtc_page_flip *page_flip = data;
3147 struct drm_mode_object *obj;
3148 struct drm_crtc *crtc;
3149 struct drm_framebuffer *fb;
3150 struct drm_pending_vblank_event *e = NULL;
3151 unsigned long flags;
3152 int ret = -EINVAL;
3153
3154 if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
3155 page_flip->reserved != 0)
3156 return -EINVAL;
3157
3158 mutex_lock(&dev->mode_config.mutex);
3159 obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC);
3160 if (!obj)
3161 goto out;
3162 crtc = obj_to_crtc(obj);
3163
3164 if (crtc->fb == NULL) {
3165 /* The framebuffer is currently unbound, presumably
3166 * due to a hotplug event, that userspace has not
3167 * yet discovered.
3168 */
3169 ret = -EBUSY;
3170 goto out;
3171 }
3172
3173 if (crtc->funcs->page_flip == NULL)
3174 goto out;
3175
3176 obj = drm_mode_object_find(dev, page_flip->fb_id, DRM_MODE_OBJECT_FB);
3177 if (!obj)
3178 goto out;
3179 fb = obj_to_fb(obj);
3180
3181 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3182 ret = -ENOMEM;
3183 spin_lock_irqsave(&dev->event_lock, flags);
3184 if (file_priv->event_space < sizeof e->event) {
3185 spin_unlock_irqrestore(&dev->event_lock, flags);
3186 goto out;
3187 }
3188 file_priv->event_space -= sizeof e->event;
3189 spin_unlock_irqrestore(&dev->event_lock, flags);
3190
3191 e = kzalloc(sizeof *e, GFP_KERNEL);
3192 if (e == NULL) {
3193 spin_lock_irqsave(&dev->event_lock, flags);
3194 file_priv->event_space += sizeof e->event;
3195 spin_unlock_irqrestore(&dev->event_lock, flags);
3196 goto out;
3197 }
3198
3199 e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
3200 e->event.base.length = sizeof e->event;
3201 e->event.user_data = page_flip->user_data;
3202 e->base.event = &e->event.base;
3203 e->base.file_priv = file_priv;
3204 e->base.destroy =
3205 (void (*) (struct drm_pending_event *)) kfree;
3206 }
3207
3208 ret = crtc->funcs->page_flip(crtc, fb, e);
3209 if (ret) {
3210 spin_lock_irqsave(&dev->event_lock, flags);
3211 file_priv->event_space += sizeof e->event;
3212 spin_unlock_irqrestore(&dev->event_lock, flags);
3213 kfree(e);
3214 }
3215
3216 out:
3217 mutex_unlock(&dev->mode_config.mutex);
3218 return ret;
3219 }
3220
3221 void drm_mode_config_reset(struct drm_device *dev)
3222 {
3223 struct drm_crtc *crtc;
3224 struct drm_encoder *encoder;
3225 struct drm_connector *connector;
3226
3227 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
3228 if (crtc->funcs->reset)
3229 crtc->funcs->reset(crtc);
3230
3231 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
3232 if (encoder->funcs->reset)
3233 encoder->funcs->reset(encoder);
3234
3235 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
3236 if (connector->funcs->reset)
3237 connector->funcs->reset(connector);
3238 }
3239 EXPORT_SYMBOL(drm_mode_config_reset);
3240
3241 int drm_mode_create_dumb_ioctl(struct drm_device *dev,
3242 void *data, struct drm_file *file_priv)
3243 {
3244 struct drm_mode_create_dumb *args = data;
3245
3246 if (!dev->driver->dumb_create)
3247 return -ENOSYS;
3248 return dev->driver->dumb_create(file_priv, dev, args);
3249 }
3250
3251 int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
3252 void *data, struct drm_file *file_priv)
3253 {
3254 struct drm_mode_map_dumb *args = data;
3255
3256 /* call driver ioctl to get mmap offset */
3257 if (!dev->driver->dumb_map_offset)
3258 return -ENOSYS;
3259
3260 return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset);
3261 }
3262
3263 int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
3264 void *data, struct drm_file *file_priv)
3265 {
3266 struct drm_mode_destroy_dumb *args = data;
3267
3268 if (!dev->driver->dumb_destroy)
3269 return -ENOSYS;
3270
3271 return dev->driver->dumb_destroy(file_priv, dev, args->handle);
3272 }
3273
3274 /*
3275 * Just need to support RGB formats here for compat with code that doesn't
3276 * use pixel formats directly yet.
3277 */
3278 void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
3279 int *bpp)
3280 {
3281 switch (format) {
3282 case DRM_FORMAT_RGB332:
3283 case DRM_FORMAT_BGR233:
3284 *depth = 8;
3285 *bpp = 8;
3286 break;
3287 case DRM_FORMAT_XRGB1555:
3288 case DRM_FORMAT_XBGR1555:
3289 case DRM_FORMAT_RGBX5551:
3290 case DRM_FORMAT_BGRX5551:
3291 case DRM_FORMAT_ARGB1555:
3292 case DRM_FORMAT_ABGR1555:
3293 case DRM_FORMAT_RGBA5551:
3294 case DRM_FORMAT_BGRA5551:
3295 *depth = 15;
3296 *bpp = 16;
3297 break;
3298 case DRM_FORMAT_RGB565:
3299 case DRM_FORMAT_BGR565:
3300 *depth = 16;
3301 *bpp = 16;
3302 break;
3303 case DRM_FORMAT_RGB888:
3304 case DRM_FORMAT_BGR888:
3305 *depth = 24;
3306 *bpp = 24;
3307 break;
3308 case DRM_FORMAT_XRGB8888:
3309 case DRM_FORMAT_XBGR8888:
3310 case DRM_FORMAT_RGBX8888:
3311 case DRM_FORMAT_BGRX8888:
3312 *depth = 24;
3313 *bpp = 32;
3314 break;
3315 case DRM_FORMAT_XRGB2101010:
3316 case DRM_FORMAT_XBGR2101010:
3317 case DRM_FORMAT_RGBX1010102:
3318 case DRM_FORMAT_BGRX1010102:
3319 case DRM_FORMAT_ARGB2101010:
3320 case DRM_FORMAT_ABGR2101010:
3321 case DRM_FORMAT_RGBA1010102:
3322 case DRM_FORMAT_BGRA1010102:
3323 *depth = 30;
3324 *bpp = 32;
3325 break;
3326 case DRM_FORMAT_ARGB8888:
3327 case DRM_FORMAT_ABGR8888:
3328 case DRM_FORMAT_RGBA8888:
3329 case DRM_FORMAT_BGRA8888:
3330 *depth = 32;
3331 *bpp = 32;
3332 break;
3333 default:
3334 DRM_DEBUG_KMS("unsupported pixel format\n");
3335 *depth = 0;
3336 *bpp = 0;
3337 break;
3338 }
3339 }
3340 EXPORT_SYMBOL(drm_fb_get_bpp_depth);