projects / deliverable / linux.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
drm: add proper return value for drm_mode_crtc_set_gamma_size
[deliverable/linux.git] / drivers / gpu / drm / drm_crtc.c
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 drm_mode_destroy(connector->dev, 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 idr_remove_all(&dev->mode_config.crtc_idr);
1053 idr_destroy(&dev->mode_config.crtc_idr);
1054 }
1055 EXPORT_SYMBOL(drm_mode_config_cleanup);
1056
1057 /**
1058 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
1059 * @out: drm_mode_modeinfo struct to return to the user
1060 * @in: drm_display_mode to use
1061 *
1062 * LOCKING:
1063 * None.
1064 *
1065 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
1066 * the user.
1067 */
1068 void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
1069 struct drm_display_mode *in)
1070 {
1071 out->clock = in->clock;
1072 out->hdisplay = in->hdisplay;
1073 out->hsync_start = in->hsync_start;
1074 out->hsync_end = in->hsync_end;
1075 out->htotal = in->htotal;
1076 out->hskew = in->hskew;
1077 out->vdisplay = in->vdisplay;
1078 out->vsync_start = in->vsync_start;
1079 out->vsync_end = in->vsync_end;
1080 out->vtotal = in->vtotal;
1081 out->vscan = in->vscan;
1082 out->vrefresh = in->vrefresh;
1083 out->flags = in->flags;
1084 out->type = in->type;
1085 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1086 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1087 }
1088
1089 /**
1090 * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
1091 * @out: drm_display_mode to return to the user
1092 * @in: drm_mode_modeinfo to use
1093 *
1094 * LOCKING:
1095 * None.
1096 *
1097 * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
1098 * the caller.
1099 */
1100 void drm_crtc_convert_umode(struct drm_display_mode *out,
1101 struct drm_mode_modeinfo *in)
1102 {
1103 out->clock = in->clock;
1104 out->hdisplay = in->hdisplay;
1105 out->hsync_start = in->hsync_start;
1106 out->hsync_end = in->hsync_end;
1107 out->htotal = in->htotal;
1108 out->hskew = in->hskew;
1109 out->vdisplay = in->vdisplay;
1110 out->vsync_start = in->vsync_start;
1111 out->vsync_end = in->vsync_end;
1112 out->vtotal = in->vtotal;
1113 out->vscan = in->vscan;
1114 out->vrefresh = in->vrefresh;
1115 out->flags = in->flags;
1116 out->type = in->type;
1117 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1118 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1119 }
1120
1121 /**
1122 * drm_mode_getresources - get graphics configuration
1123 * @inode: inode from the ioctl
1124 * @filp: file * from the ioctl
1125 * @cmd: cmd from ioctl
1126 * @arg: arg from ioctl
1127 *
1128 * LOCKING:
1129 * Takes mode config lock.
1130 *
1131 * Construct a set of configuration description structures and return
1132 * them to the user, including CRTC, connector and framebuffer configuration.
1133 *
1134 * Called by the user via ioctl.
1135 *
1136 * RETURNS:
1137 * Zero on success, errno on failure.
1138 */
1139 int drm_mode_getresources(struct drm_device *dev, void *data,
1140 struct drm_file *file_priv)
1141 {
1142 struct drm_mode_card_res *card_res = data;
1143 struct list_head *lh;
1144 struct drm_framebuffer *fb;
1145 struct drm_connector *connector;
1146 struct drm_crtc *crtc;
1147 struct drm_encoder *encoder;
1148 int ret = 0;
1149 int connector_count = 0;
1150 int crtc_count = 0;
1151 int fb_count = 0;
1152 int encoder_count = 0;
1153 int copied = 0, i;
1154 uint32_t __user *fb_id;
1155 uint32_t __user *crtc_id;
1156 uint32_t __user *connector_id;
1157 uint32_t __user *encoder_id;
1158 struct drm_mode_group *mode_group;
1159
1160 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1161 return -EINVAL;
1162
1163 mutex_lock(&dev->mode_config.mutex);
1164
1165 /*
1166 * For the non-control nodes we need to limit the list of resources
1167 * by IDs in the group list for this node
1168 */
1169 list_for_each(lh, &file_priv->fbs)
1170 fb_count++;
1171
1172 mode_group = &file_priv->master->minor->mode_group;
1173 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1174
1175 list_for_each(lh, &dev->mode_config.crtc_list)
1176 crtc_count++;
1177
1178 list_for_each(lh, &dev->mode_config.connector_list)
1179 connector_count++;
1180
1181 list_for_each(lh, &dev->mode_config.encoder_list)
1182 encoder_count++;
1183 } else {
1184
1185 crtc_count = mode_group->num_crtcs;
1186 connector_count = mode_group->num_connectors;
1187 encoder_count = mode_group->num_encoders;
1188 }
1189
1190 card_res->max_height = dev->mode_config.max_height;
1191 card_res->min_height = dev->mode_config.min_height;
1192 card_res->max_width = dev->mode_config.max_width;
1193 card_res->min_width = dev->mode_config.min_width;
1194
1195 /* handle this in 4 parts */
1196 /* FBs */
1197 if (card_res->count_fbs >= fb_count) {
1198 copied = 0;
1199 fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
1200 list_for_each_entry(fb, &file_priv->fbs, filp_head) {
1201 if (put_user(fb->base.id, fb_id + copied)) {
1202 ret = -EFAULT;
1203 goto out;
1204 }
1205 copied++;
1206 }
1207 }
1208 card_res->count_fbs = fb_count;
1209
1210 /* CRTCs */
1211 if (card_res->count_crtcs >= crtc_count) {
1212 copied = 0;
1213 crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
1214 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1215 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
1216 head) {
1217 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
1218 if (put_user(crtc->base.id, crtc_id + copied)) {
1219 ret = -EFAULT;
1220 goto out;
1221 }
1222 copied++;
1223 }
1224 } else {
1225 for (i = 0; i < mode_group->num_crtcs; i++) {
1226 if (put_user(mode_group->id_list[i],
1227 crtc_id + copied)) {
1228 ret = -EFAULT;
1229 goto out;
1230 }
1231 copied++;
1232 }
1233 }
1234 }
1235 card_res->count_crtcs = crtc_count;
1236
1237 /* Encoders */
1238 if (card_res->count_encoders >= encoder_count) {
1239 copied = 0;
1240 encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
1241 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1242 list_for_each_entry(encoder,
1243 &dev->mode_config.encoder_list,
1244 head) {
1245 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id,
1246 drm_get_encoder_name(encoder));
1247 if (put_user(encoder->base.id, encoder_id +
1248 copied)) {
1249 ret = -EFAULT;
1250 goto out;
1251 }
1252 copied++;
1253 }
1254 } else {
1255 for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
1256 if (put_user(mode_group->id_list[i],
1257 encoder_id + copied)) {
1258 ret = -EFAULT;
1259 goto out;
1260 }
1261 copied++;
1262 }
1263
1264 }
1265 }
1266 card_res->count_encoders = encoder_count;
1267
1268 /* Connectors */
1269 if (card_res->count_connectors >= connector_count) {
1270 copied = 0;
1271 connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
1272 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1273 list_for_each_entry(connector,
1274 &dev->mode_config.connector_list,
1275 head) {
1276 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1277 connector->base.id,
1278 drm_get_connector_name(connector));
1279 if (put_user(connector->base.id,
1280 connector_id + copied)) {
1281 ret = -EFAULT;
1282 goto out;
1283 }
1284 copied++;
1285 }
1286 } else {
1287 int start = mode_group->num_crtcs +
1288 mode_group->num_encoders;
1289 for (i = start; i < start + mode_group->num_connectors; i++) {
1290 if (put_user(mode_group->id_list[i],
1291 connector_id + copied)) {
1292 ret = -EFAULT;
1293 goto out;
1294 }
1295 copied++;
1296 }
1297 }
1298 }
1299 card_res->count_connectors = connector_count;
1300
1301 DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs,
1302 card_res->count_connectors, card_res->count_encoders);
1303
1304 out:
1305 mutex_unlock(&dev->mode_config.mutex);
1306 return ret;
1307 }
1308
1309 /**
1310 * drm_mode_getcrtc - get CRTC configuration
1311 * @inode: inode from the ioctl
1312 * @filp: file * from the ioctl
1313 * @cmd: cmd from ioctl
1314 * @arg: arg from ioctl
1315 *
1316 * LOCKING:
1317 * Caller? (FIXME)
1318 *
1319 * Construct a CRTC configuration structure to return to the user.
1320 *
1321 * Called by the user via ioctl.
1322 *
1323 * RETURNS:
1324 * Zero on success, errno on failure.
1325 */
1326 int drm_mode_getcrtc(struct drm_device *dev,
1327 void *data, struct drm_file *file_priv)
1328 {
1329 struct drm_mode_crtc *crtc_resp = data;
1330 struct drm_crtc *crtc;
1331 struct drm_mode_object *obj;
1332 int ret = 0;
1333
1334 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1335 return -EINVAL;
1336
1337 mutex_lock(&dev->mode_config.mutex);
1338
1339 obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
1340 DRM_MODE_OBJECT_CRTC);
1341 if (!obj) {
1342 ret = -EINVAL;
1343 goto out;
1344 }
1345 crtc = obj_to_crtc(obj);
1346
1347 crtc_resp->x = crtc->x;
1348 crtc_resp->y = crtc->y;
1349 crtc_resp->gamma_size = crtc->gamma_size;
1350 if (crtc->fb)
1351 crtc_resp->fb_id = crtc->fb->base.id;
1352 else
1353 crtc_resp->fb_id = 0;
1354
1355 if (crtc->enabled) {
1356
1357 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
1358 crtc_resp->mode_valid = 1;
1359
1360 } else {
1361 crtc_resp->mode_valid = 0;
1362 }
1363
1364 out:
1365 mutex_unlock(&dev->mode_config.mutex);
1366 return ret;
1367 }
1368
1369 /**
1370 * drm_mode_getconnector - get connector configuration
1371 * @inode: inode from the ioctl
1372 * @filp: file * from the ioctl
1373 * @cmd: cmd from ioctl
1374 * @arg: arg from ioctl
1375 *
1376 * LOCKING:
1377 * Caller? (FIXME)
1378 *
1379 * Construct a connector configuration structure to return to the user.
1380 *
1381 * Called by the user via ioctl.
1382 *
1383 * RETURNS:
1384 * Zero on success, errno on failure.
1385 */
1386 int drm_mode_getconnector(struct drm_device *dev, void *data,
1387 struct drm_file *file_priv)
1388 {
1389 struct drm_mode_get_connector *out_resp = data;
1390 struct drm_mode_object *obj;
1391 struct drm_connector *connector;
1392 struct drm_display_mode *mode;
1393 int mode_count = 0;
1394 int props_count = 0;
1395 int encoders_count = 0;
1396 int ret = 0;
1397 int copied = 0;
1398 int i;
1399 struct drm_mode_modeinfo u_mode;
1400 struct drm_mode_modeinfo __user *mode_ptr;
1401 uint32_t __user *prop_ptr;
1402 uint64_t __user *prop_values;
1403 uint32_t __user *encoder_ptr;
1404
1405 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1406 return -EINVAL;
1407
1408 memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
1409
1410 DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id);
1411
1412 mutex_lock(&dev->mode_config.mutex);
1413
1414 obj = drm_mode_object_find(dev, out_resp->connector_id,
1415 DRM_MODE_OBJECT_CONNECTOR);
1416 if (!obj) {
1417 ret = -EINVAL;
1418 goto out;
1419 }
1420 connector = obj_to_connector(obj);
1421
1422 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1423 if (connector->property_ids[i] != 0) {
1424 props_count++;
1425 }
1426 }
1427
1428 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1429 if (connector->encoder_ids[i] != 0) {
1430 encoders_count++;
1431 }
1432 }
1433
1434 if (out_resp->count_modes == 0) {
1435 connector->funcs->fill_modes(connector,
1436 dev->mode_config.max_width,
1437 dev->mode_config.max_height);
1438 }
1439
1440 /* delayed so we get modes regardless of pre-fill_modes state */
1441 list_for_each_entry(mode, &connector->modes, head)
1442 mode_count++;
1443
1444 out_resp->connector_id = connector->base.id;
1445 out_resp->connector_type = connector->connector_type;
1446 out_resp->connector_type_id = connector->connector_type_id;
1447 out_resp->mm_width = connector->display_info.width_mm;
1448 out_resp->mm_height = connector->display_info.height_mm;
1449 out_resp->subpixel = connector->display_info.subpixel_order;
1450 out_resp->connection = connector->status;
1451 if (connector->encoder)
1452 out_resp->encoder_id = connector->encoder->base.id;
1453 else
1454 out_resp->encoder_id = 0;
1455
1456 /*
1457 * This ioctl is called twice, once to determine how much space is
1458 * needed, and the 2nd time to fill it.
1459 */
1460 if ((out_resp->count_modes >= mode_count) && mode_count) {
1461 copied = 0;
1462 mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr;
1463 list_for_each_entry(mode, &connector->modes, head) {
1464 drm_crtc_convert_to_umode(&u_mode, mode);
1465 if (copy_to_user(mode_ptr + copied,
1466 &u_mode, sizeof(u_mode))) {
1467 ret = -EFAULT;
1468 goto out;
1469 }
1470 copied++;
1471 }
1472 }
1473 out_resp->count_modes = mode_count;
1474
1475 if ((out_resp->count_props >= props_count) && props_count) {
1476 copied = 0;
1477 prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr);
1478 prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr);
1479 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1480 if (connector->property_ids[i] != 0) {
1481 if (put_user(connector->property_ids[i],
1482 prop_ptr + copied)) {
1483 ret = -EFAULT;
1484 goto out;
1485 }
1486
1487 if (put_user(connector->property_values[i],
1488 prop_values + copied)) {
1489 ret = -EFAULT;
1490 goto out;
1491 }
1492 copied++;
1493 }
1494 }
1495 }
1496 out_resp->count_props = props_count;
1497
1498 if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
1499 copied = 0;
1500 encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr);
1501 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1502 if (connector->encoder_ids[i] != 0) {
1503 if (put_user(connector->encoder_ids[i],
1504 encoder_ptr + copied)) {
1505 ret = -EFAULT;
1506 goto out;
1507 }
1508 copied++;
1509 }
1510 }
1511 }
1512 out_resp->count_encoders = encoders_count;
1513
1514 out:
1515 mutex_unlock(&dev->mode_config.mutex);
1516 return ret;
1517 }
1518
1519 int drm_mode_getencoder(struct drm_device *dev, void *data,
1520 struct drm_file *file_priv)
1521 {
1522 struct drm_mode_get_encoder *enc_resp = data;
1523 struct drm_mode_object *obj;
1524 struct drm_encoder *encoder;
1525 int ret = 0;
1526
1527 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1528 return -EINVAL;
1529
1530 mutex_lock(&dev->mode_config.mutex);
1531 obj = drm_mode_object_find(dev, enc_resp->encoder_id,
1532 DRM_MODE_OBJECT_ENCODER);
1533 if (!obj) {
1534 ret = -EINVAL;
1535 goto out;
1536 }
1537 encoder = obj_to_encoder(obj);
1538
1539 if (encoder->crtc)
1540 enc_resp->crtc_id = encoder->crtc->base.id;
1541 else
1542 enc_resp->crtc_id = 0;
1543 enc_resp->encoder_type = encoder->encoder_type;
1544 enc_resp->encoder_id = encoder->base.id;
1545 enc_resp->possible_crtcs = encoder->possible_crtcs;
1546 enc_resp->possible_clones = encoder->possible_clones;
1547
1548 out:
1549 mutex_unlock(&dev->mode_config.mutex);
1550 return ret;
1551 }
1552
1553 /**
1554 * drm_mode_getplane_res - get plane info
1555 * @dev: DRM device
1556 * @data: ioctl data
1557 * @file_priv: DRM file info
1558 *
1559 * Return an plane count and set of IDs.
1560 */
1561 int drm_mode_getplane_res(struct drm_device *dev, void *data,
1562 struct drm_file *file_priv)
1563 {
1564 struct drm_mode_get_plane_res *plane_resp = data;
1565 struct drm_mode_config *config;
1566 struct drm_plane *plane;
1567 uint32_t __user *plane_ptr;
1568 int copied = 0, ret = 0;
1569
1570 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1571 return -EINVAL;
1572
1573 mutex_lock(&dev->mode_config.mutex);
1574 config = &dev->mode_config;
1575
1576 /*
1577 * This ioctl is called twice, once to determine how much space is
1578 * needed, and the 2nd time to fill it.
1579 */
1580 if (config->num_plane &&
1581 (plane_resp->count_planes >= config->num_plane)) {
1582 plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr;
1583
1584 list_for_each_entry(plane, &config->plane_list, head) {
1585 if (put_user(plane->base.id, plane_ptr + copied)) {
1586 ret = -EFAULT;
1587 goto out;
1588 }
1589 copied++;
1590 }
1591 }
1592 plane_resp->count_planes = config->num_plane;
1593
1594 out:
1595 mutex_unlock(&dev->mode_config.mutex);
1596 return ret;
1597 }
1598
1599 /**
1600 * drm_mode_getplane - get plane info
1601 * @dev: DRM device
1602 * @data: ioctl data
1603 * @file_priv: DRM file info
1604 *
1605 * Return plane info, including formats supported, gamma size, any
1606 * current fb, etc.
1607 */
1608 int drm_mode_getplane(struct drm_device *dev, void *data,
1609 struct drm_file *file_priv)
1610 {
1611 struct drm_mode_get_plane *plane_resp = data;
1612 struct drm_mode_object *obj;
1613 struct drm_plane *plane;
1614 uint32_t __user *format_ptr;
1615 int ret = 0;
1616
1617 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1618 return -EINVAL;
1619
1620 mutex_lock(&dev->mode_config.mutex);
1621 obj = drm_mode_object_find(dev, plane_resp->plane_id,
1622 DRM_MODE_OBJECT_PLANE);
1623 if (!obj) {
1624 ret = -ENOENT;
1625 goto out;
1626 }
1627 plane = obj_to_plane(obj);
1628
1629 if (plane->crtc)
1630 plane_resp->crtc_id = plane->crtc->base.id;
1631 else
1632 plane_resp->crtc_id = 0;
1633
1634 if (plane->fb)
1635 plane_resp->fb_id = plane->fb->base.id;
1636 else
1637 plane_resp->fb_id = 0;
1638
1639 plane_resp->plane_id = plane->base.id;
1640 plane_resp->possible_crtcs = plane->possible_crtcs;
1641 plane_resp->gamma_size = plane->gamma_size;
1642
1643 /*
1644 * This ioctl is called twice, once to determine how much space is
1645 * needed, and the 2nd time to fill it.
1646 */
1647 if (plane->format_count &&
1648 (plane_resp->count_format_types >= plane->format_count)) {
1649 format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr;
1650 if (copy_to_user(format_ptr,
1651 plane->format_types,
1652 sizeof(uint32_t) * plane->format_count)) {
1653 ret = -EFAULT;
1654 goto out;
1655 }
1656 }
1657 plane_resp->count_format_types = plane->format_count;
1658
1659 out:
1660 mutex_unlock(&dev->mode_config.mutex);
1661 return ret;
1662 }
1663
1664 /**
1665 * drm_mode_setplane - set up or tear down an plane
1666 * @dev: DRM device
1667 * @data: ioctl data*
1668 * @file_prive: DRM file info
1669 *
1670 * Set plane info, including placement, fb, scaling, and other factors.
1671 * Or pass a NULL fb to disable.
1672 */
1673 int drm_mode_setplane(struct drm_device *dev, void *data,
1674 struct drm_file *file_priv)
1675 {
1676 struct drm_mode_set_plane *plane_req = data;
1677 struct drm_mode_object *obj;
1678 struct drm_plane *plane;
1679 struct drm_crtc *crtc;
1680 struct drm_framebuffer *fb;
1681 int ret = 0;
1682 unsigned int fb_width, fb_height;
1683 int i;
1684
1685 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1686 return -EINVAL;
1687
1688 mutex_lock(&dev->mode_config.mutex);
1689
1690 /*
1691 * First, find the plane, crtc, and fb objects. If not available,
1692 * we don't bother to call the driver.
1693 */
1694 obj = drm_mode_object_find(dev, plane_req->plane_id,
1695 DRM_MODE_OBJECT_PLANE);
1696 if (!obj) {
1697 DRM_DEBUG_KMS("Unknown plane ID %d\n",
1698 plane_req->plane_id);
1699 ret = -ENOENT;
1700 goto out;
1701 }
1702 plane = obj_to_plane(obj);
1703
1704 /* No fb means shut it down */
1705 if (!plane_req->fb_id) {
1706 plane->funcs->disable_plane(plane);
1707 plane->crtc = NULL;
1708 plane->fb = NULL;
1709 goto out;
1710 }
1711
1712 obj = drm_mode_object_find(dev, plane_req->crtc_id,
1713 DRM_MODE_OBJECT_CRTC);
1714 if (!obj) {
1715 DRM_DEBUG_KMS("Unknown crtc ID %d\n",
1716 plane_req->crtc_id);
1717 ret = -ENOENT;
1718 goto out;
1719 }
1720 crtc = obj_to_crtc(obj);
1721
1722 obj = drm_mode_object_find(dev, plane_req->fb_id,
1723 DRM_MODE_OBJECT_FB);
1724 if (!obj) {
1725 DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
1726 plane_req->fb_id);
1727 ret = -ENOENT;
1728 goto out;
1729 }
1730 fb = obj_to_fb(obj);
1731
1732 /* Check whether this plane supports the fb pixel format. */
1733 for (i = 0; i < plane->format_count; i++)
1734 if (fb->pixel_format == plane->format_types[i])
1735 break;
1736 if (i == plane->format_count) {
1737 DRM_DEBUG_KMS("Invalid pixel format 0x%08x\n", fb->pixel_format);
1738 ret = -EINVAL;
1739 goto out;
1740 }
1741
1742 fb_width = fb->width << 16;
1743 fb_height = fb->height << 16;
1744
1745 /* Make sure source coordinates are inside the fb. */
1746 if (plane_req->src_w > fb_width ||
1747 plane_req->src_x > fb_width - plane_req->src_w ||
1748 plane_req->src_h > fb_height ||
1749 plane_req->src_y > fb_height - plane_req->src_h) {
1750 DRM_DEBUG_KMS("Invalid source coordinates "
1751 "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n",
1752 plane_req->src_w >> 16,
1753 ((plane_req->src_w & 0xffff) * 15625) >> 10,
1754 plane_req->src_h >> 16,
1755 ((plane_req->src_h & 0xffff) * 15625) >> 10,
1756 plane_req->src_x >> 16,
1757 ((plane_req->src_x & 0xffff) * 15625) >> 10,
1758 plane_req->src_y >> 16,
1759 ((plane_req->src_y & 0xffff) * 15625) >> 10);
1760 ret = -ENOSPC;
1761 goto out;
1762 }
1763
1764 /* Give drivers some help against integer overflows */
1765 if (plane_req->crtc_w > INT_MAX ||
1766 plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w ||
1767 plane_req->crtc_h > INT_MAX ||
1768 plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) {
1769 DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
1770 plane_req->crtc_w, plane_req->crtc_h,
1771 plane_req->crtc_x, plane_req->crtc_y);
1772 ret = -ERANGE;
1773 goto out;
1774 }
1775
1776 ret = plane->funcs->update_plane(plane, crtc, fb,
1777 plane_req->crtc_x, plane_req->crtc_y,
1778 plane_req->crtc_w, plane_req->crtc_h,
1779 plane_req->src_x, plane_req->src_y,
1780 plane_req->src_w, plane_req->src_h);
1781 if (!ret) {
1782 plane->crtc = crtc;
1783 plane->fb = fb;
1784 }
1785
1786 out:
1787 mutex_unlock(&dev->mode_config.mutex);
1788
1789 return ret;
1790 }
1791
1792 /**
1793 * drm_mode_setcrtc - set CRTC configuration
1794 * @inode: inode from the ioctl
1795 * @filp: file * from the ioctl
1796 * @cmd: cmd from ioctl
1797 * @arg: arg from ioctl
1798 *
1799 * LOCKING:
1800 * Caller? (FIXME)
1801 *
1802 * Build a new CRTC configuration based on user request.
1803 *
1804 * Called by the user via ioctl.
1805 *
1806 * RETURNS:
1807 * Zero on success, errno on failure.
1808 */
1809 int drm_mode_setcrtc(struct drm_device *dev, void *data,
1810 struct drm_file *file_priv)
1811 {
1812 struct drm_mode_config *config = &dev->mode_config;
1813 struct drm_mode_crtc *crtc_req = data;
1814 struct drm_mode_object *obj;
1815 struct drm_crtc *crtc, *crtcfb;
1816 struct drm_connector **connector_set = NULL, *connector;
1817 struct drm_framebuffer *fb = NULL;
1818 struct drm_display_mode *mode = NULL;
1819 struct drm_mode_set set;
1820 uint32_t __user *set_connectors_ptr;
1821 int ret = 0;
1822 int i;
1823
1824 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1825 return -EINVAL;
1826
1827 mutex_lock(&dev->mode_config.mutex);
1828 obj = drm_mode_object_find(dev, crtc_req->crtc_id,
1829 DRM_MODE_OBJECT_CRTC);
1830 if (!obj) {
1831 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
1832 ret = -EINVAL;
1833 goto out;
1834 }
1835 crtc = obj_to_crtc(obj);
1836 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
1837
1838 if (crtc_req->mode_valid) {
1839 /* If we have a mode we need a framebuffer. */
1840 /* If we pass -1, set the mode with the currently bound fb */
1841 if (crtc_req->fb_id == -1) {
1842 list_for_each_entry(crtcfb,
1843 &dev->mode_config.crtc_list, head) {
1844 if (crtcfb == crtc) {
1845 DRM_DEBUG_KMS("Using current fb for "
1846 "setmode\n");
1847 fb = crtc->fb;
1848 }
1849 }
1850 } else {
1851 obj = drm_mode_object_find(dev, crtc_req->fb_id,
1852 DRM_MODE_OBJECT_FB);
1853 if (!obj) {
1854 DRM_DEBUG_KMS("Unknown FB ID%d\n",
1855 crtc_req->fb_id);
1856 ret = -EINVAL;
1857 goto out;
1858 }
1859 fb = obj_to_fb(obj);
1860 }
1861
1862 mode = drm_mode_create(dev);
1863 drm_crtc_convert_umode(mode, &crtc_req->mode);
1864 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
1865 }
1866
1867 if (crtc_req->count_connectors == 0 && mode) {
1868 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
1869 ret = -EINVAL;
1870 goto out;
1871 }
1872
1873 if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
1874 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
1875 crtc_req->count_connectors);
1876 ret = -EINVAL;
1877 goto out;
1878 }
1879
1880 if (crtc_req->count_connectors > 0) {
1881 u32 out_id;
1882
1883 /* Avoid unbounded kernel memory allocation */
1884 if (crtc_req->count_connectors > config->num_connector) {
1885 ret = -EINVAL;
1886 goto out;
1887 }
1888
1889 connector_set = kmalloc(crtc_req->count_connectors *
1890 sizeof(struct drm_connector *),
1891 GFP_KERNEL);
1892 if (!connector_set) {
1893 ret = -ENOMEM;
1894 goto out;
1895 }
1896
1897 for (i = 0; i < crtc_req->count_connectors; i++) {
1898 set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr;
1899 if (get_user(out_id, &set_connectors_ptr[i])) {
1900 ret = -EFAULT;
1901 goto out;
1902 }
1903
1904 obj = drm_mode_object_find(dev, out_id,
1905 DRM_MODE_OBJECT_CONNECTOR);
1906 if (!obj) {
1907 DRM_DEBUG_KMS("Connector id %d unknown\n",
1908 out_id);
1909 ret = -EINVAL;
1910 goto out;
1911 }
1912 connector = obj_to_connector(obj);
1913 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1914 connector->base.id,
1915 drm_get_connector_name(connector));
1916
1917 connector_set[i] = connector;
1918 }
1919 }
1920
1921 set.crtc = crtc;
1922 set.x = crtc_req->x;
1923 set.y = crtc_req->y;
1924 set.mode = mode;
1925 set.connectors = connector_set;
1926 set.num_connectors = crtc_req->count_connectors;
1927 set.fb = fb;
1928 ret = crtc->funcs->set_config(&set);
1929
1930 out:
1931 kfree(connector_set);
1932 mutex_unlock(&dev->mode_config.mutex);
1933 return ret;
1934 }
1935
1936 int drm_mode_cursor_ioctl(struct drm_device *dev,
1937 void *data, struct drm_file *file_priv)
1938 {
1939 struct drm_mode_cursor *req = data;
1940 struct drm_mode_object *obj;
1941 struct drm_crtc *crtc;
1942 int ret = 0;
1943
1944 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1945 return -EINVAL;
1946
1947 if (!req->flags)
1948 return -EINVAL;
1949
1950 mutex_lock(&dev->mode_config.mutex);
1951 obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
1952 if (!obj) {
1953 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
1954 ret = -EINVAL;
1955 goto out;
1956 }
1957 crtc = obj_to_crtc(obj);
1958
1959 if (req->flags & DRM_MODE_CURSOR_BO) {
1960 if (!crtc->funcs->cursor_set) {
1961 ret = -ENXIO;
1962 goto out;
1963 }
1964 /* Turns off the cursor if handle is 0 */
1965 ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
1966 req->width, req->height);
1967 }
1968
1969 if (req->flags & DRM_MODE_CURSOR_MOVE) {
1970 if (crtc->funcs->cursor_move) {
1971 ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
1972 } else {
1973 ret = -EFAULT;
1974 goto out;
1975 }
1976 }
1977 out:
1978 mutex_unlock(&dev->mode_config.mutex);
1979 return ret;
1980 }
1981
1982 /* Original addfb only supported RGB formats, so figure out which one */
1983 uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth)
1984 {
1985 uint32_t fmt;
1986
1987 switch (bpp) {
1988 case 8:
1989 fmt = DRM_FORMAT_RGB332;
1990 break;
1991 case 16:
1992 if (depth == 15)
1993 fmt = DRM_FORMAT_XRGB1555;
1994 else
1995 fmt = DRM_FORMAT_RGB565;
1996 break;
1997 case 24:
1998 fmt = DRM_FORMAT_RGB888;
1999 break;
2000 case 32:
2001 if (depth == 24)
2002 fmt = DRM_FORMAT_XRGB8888;
2003 else if (depth == 30)
2004 fmt = DRM_FORMAT_XRGB2101010;
2005 else
2006 fmt = DRM_FORMAT_ARGB8888;
2007 break;
2008 default:
2009 DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n");
2010 fmt = DRM_FORMAT_XRGB8888;
2011 break;
2012 }
2013
2014 return fmt;
2015 }
2016 EXPORT_SYMBOL(drm_mode_legacy_fb_format);
2017
2018 /**
2019 * drm_mode_addfb - add an FB to the graphics configuration
2020 * @inode: inode from the ioctl
2021 * @filp: file * from the ioctl
2022 * @cmd: cmd from ioctl
2023 * @arg: arg from ioctl
2024 *
2025 * LOCKING:
2026 * Takes mode config lock.
2027 *
2028 * Add a new FB to the specified CRTC, given a user request.
2029 *
2030 * Called by the user via ioctl.
2031 *
2032 * RETURNS:
2033 * Zero on success, errno on failure.
2034 */
2035 int drm_mode_addfb(struct drm_device *dev,
2036 void *data, struct drm_file *file_priv)
2037 {
2038 struct drm_mode_fb_cmd *or = data;
2039 struct drm_mode_fb_cmd2 r = {};
2040 struct drm_mode_config *config = &dev->mode_config;
2041 struct drm_framebuffer *fb;
2042 int ret = 0;
2043
2044 /* Use new struct with format internally */
2045 r.fb_id = or->fb_id;
2046 r.width = or->width;
2047 r.height = or->height;
2048 r.pitches[0] = or->pitch;
2049 r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth);
2050 r.handles[0] = or->handle;
2051
2052 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2053 return -EINVAL;
2054
2055 if ((config->min_width > r.width) || (r.width > config->max_width))
2056 return -EINVAL;
2057
2058 if ((config->min_height > r.height) || (r.height > config->max_height))
2059 return -EINVAL;
2060
2061 mutex_lock(&dev->mode_config.mutex);
2062
2063 /* TODO check buffer is sufficiently large */
2064 /* TODO setup destructor callback */
2065
2066 fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r);
2067 if (IS_ERR(fb)) {
2068 DRM_ERROR("could not create framebuffer\n");
2069 ret = PTR_ERR(fb);
2070 goto out;
2071 }
2072
2073 or->fb_id = fb->base.id;
2074 list_add(&fb->filp_head, &file_priv->fbs);
2075 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
2076
2077 out:
2078 mutex_unlock(&dev->mode_config.mutex);
2079 return ret;
2080 }
2081
2082 static int format_check(struct drm_mode_fb_cmd2 *r)
2083 {
2084 uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN;
2085
2086 switch (format) {
2087 case DRM_FORMAT_C8:
2088 case DRM_FORMAT_RGB332:
2089 case DRM_FORMAT_BGR233:
2090 case DRM_FORMAT_XRGB4444:
2091 case DRM_FORMAT_XBGR4444:
2092 case DRM_FORMAT_RGBX4444:
2093 case DRM_FORMAT_BGRX4444:
2094 case DRM_FORMAT_ARGB4444:
2095 case DRM_FORMAT_ABGR4444:
2096 case DRM_FORMAT_RGBA4444:
2097 case DRM_FORMAT_BGRA4444:
2098 case DRM_FORMAT_XRGB1555:
2099 case DRM_FORMAT_XBGR1555:
2100 case DRM_FORMAT_RGBX5551:
2101 case DRM_FORMAT_BGRX5551:
2102 case DRM_FORMAT_ARGB1555:
2103 case DRM_FORMAT_ABGR1555:
2104 case DRM_FORMAT_RGBA5551:
2105 case DRM_FORMAT_BGRA5551:
2106 case DRM_FORMAT_RGB565:
2107 case DRM_FORMAT_BGR565:
2108 case DRM_FORMAT_RGB888:
2109 case DRM_FORMAT_BGR888:
2110 case DRM_FORMAT_XRGB8888:
2111 case DRM_FORMAT_XBGR8888:
2112 case DRM_FORMAT_RGBX8888:
2113 case DRM_FORMAT_BGRX8888:
2114 case DRM_FORMAT_ARGB8888:
2115 case DRM_FORMAT_ABGR8888:
2116 case DRM_FORMAT_RGBA8888:
2117 case DRM_FORMAT_BGRA8888:
2118 case DRM_FORMAT_XRGB2101010:
2119 case DRM_FORMAT_XBGR2101010:
2120 case DRM_FORMAT_RGBX1010102:
2121 case DRM_FORMAT_BGRX1010102:
2122 case DRM_FORMAT_ARGB2101010:
2123 case DRM_FORMAT_ABGR2101010:
2124 case DRM_FORMAT_RGBA1010102:
2125 case DRM_FORMAT_BGRA1010102:
2126 case DRM_FORMAT_YUYV:
2127 case DRM_FORMAT_YVYU:
2128 case DRM_FORMAT_UYVY:
2129 case DRM_FORMAT_VYUY:
2130 case DRM_FORMAT_AYUV:
2131 case DRM_FORMAT_NV12:
2132 case DRM_FORMAT_NV21:
2133 case DRM_FORMAT_NV16:
2134 case DRM_FORMAT_NV61:
2135 case DRM_FORMAT_YUV410:
2136 case DRM_FORMAT_YVU410:
2137 case DRM_FORMAT_YUV411:
2138 case DRM_FORMAT_YVU411:
2139 case DRM_FORMAT_YUV420:
2140 case DRM_FORMAT_YVU420:
2141 case DRM_FORMAT_YUV422:
2142 case DRM_FORMAT_YVU422:
2143 case DRM_FORMAT_YUV444:
2144 case DRM_FORMAT_YVU444:
2145 return 0;
2146 default:
2147 return -EINVAL;
2148 }
2149 }
2150
2151 /**
2152 * drm_mode_addfb2 - add an FB to the graphics configuration
2153 * @inode: inode from the ioctl
2154 * @filp: file * from the ioctl
2155 * @cmd: cmd from ioctl
2156 * @arg: arg from ioctl
2157 *
2158 * LOCKING:
2159 * Takes mode config lock.
2160 *
2161 * Add a new FB to the specified CRTC, given a user request with format.
2162 *
2163 * Called by the user via ioctl.
2164 *
2165 * RETURNS:
2166 * Zero on success, errno on failure.
2167 */
2168 int drm_mode_addfb2(struct drm_device *dev,
2169 void *data, struct drm_file *file_priv)
2170 {
2171 struct drm_mode_fb_cmd2 *r = data;
2172 struct drm_mode_config *config = &dev->mode_config;
2173 struct drm_framebuffer *fb;
2174 int ret = 0;
2175
2176 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2177 return -EINVAL;
2178
2179 if ((config->min_width > r->width) || (r->width > config->max_width)) {
2180 DRM_ERROR("bad framebuffer width %d, should be >= %d && <= %d\n",
2181 r->width, config->min_width, config->max_width);
2182 return -EINVAL;
2183 }
2184 if ((config->min_height > r->height) || (r->height > config->max_height)) {
2185 DRM_ERROR("bad framebuffer height %d, should be >= %d && <= %d\n",
2186 r->height, config->min_height, config->max_height);
2187 return -EINVAL;
2188 }
2189
2190 ret = format_check(r);
2191 if (ret) {
2192 DRM_ERROR("bad framebuffer format 0x%08x\n", r->pixel_format);
2193 return ret;
2194 }
2195
2196 mutex_lock(&dev->mode_config.mutex);
2197
2198 fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
2199 if (IS_ERR(fb)) {
2200 DRM_ERROR("could not create framebuffer\n");
2201 ret = PTR_ERR(fb);
2202 goto out;
2203 }
2204
2205 r->fb_id = fb->base.id;
2206 list_add(&fb->filp_head, &file_priv->fbs);
2207 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
2208
2209 out:
2210 mutex_unlock(&dev->mode_config.mutex);
2211 return ret;
2212 }
2213
2214 /**
2215 * drm_mode_rmfb - remove an FB from the configuration
2216 * @inode: inode from the ioctl
2217 * @filp: file * from the ioctl
2218 * @cmd: cmd from ioctl
2219 * @arg: arg from ioctl
2220 *
2221 * LOCKING:
2222 * Takes mode config lock.
2223 *
2224 * Remove the FB specified by the user.
2225 *
2226 * Called by the user via ioctl.
2227 *
2228 * RETURNS:
2229 * Zero on success, errno on failure.
2230 */
2231 int drm_mode_rmfb(struct drm_device *dev,
2232 void *data, struct drm_file *file_priv)
2233 {
2234 struct drm_mode_object *obj;
2235 struct drm_framebuffer *fb = NULL;
2236 struct drm_framebuffer *fbl = NULL;
2237 uint32_t *id = data;
2238 int ret = 0;
2239 int found = 0;
2240
2241 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2242 return -EINVAL;
2243
2244 mutex_lock(&dev->mode_config.mutex);
2245 obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB);
2246 /* TODO check that we really get a framebuffer back. */
2247 if (!obj) {
2248 ret = -EINVAL;
2249 goto out;
2250 }
2251 fb = obj_to_fb(obj);
2252
2253 list_for_each_entry(fbl, &file_priv->fbs, filp_head)
2254 if (fb == fbl)
2255 found = 1;
2256
2257 if (!found) {
2258 ret = -EINVAL;
2259 goto out;
2260 }
2261
2262 /* TODO release all crtc connected to the framebuffer */
2263 /* TODO unhock the destructor from the buffer object */
2264
2265 list_del(&fb->filp_head);
2266 fb->funcs->destroy(fb);
2267
2268 out:
2269 mutex_unlock(&dev->mode_config.mutex);
2270 return ret;
2271 }
2272
2273 /**
2274 * drm_mode_getfb - get FB info
2275 * @inode: inode from the ioctl
2276 * @filp: file * from the ioctl
2277 * @cmd: cmd from ioctl
2278 * @arg: arg from ioctl
2279 *
2280 * LOCKING:
2281 * Caller? (FIXME)
2282 *
2283 * Lookup the FB given its ID and return info about it.
2284 *
2285 * Called by the user via ioctl.
2286 *
2287 * RETURNS:
2288 * Zero on success, errno on failure.
2289 */
2290 int drm_mode_getfb(struct drm_device *dev,
2291 void *data, struct drm_file *file_priv)
2292 {
2293 struct drm_mode_fb_cmd *r = data;
2294 struct drm_mode_object *obj;
2295 struct drm_framebuffer *fb;
2296 int ret = 0;
2297
2298 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2299 return -EINVAL;
2300
2301 mutex_lock(&dev->mode_config.mutex);
2302 obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
2303 if (!obj) {
2304 ret = -EINVAL;
2305 goto out;
2306 }
2307 fb = obj_to_fb(obj);
2308
2309 r->height = fb->height;
2310 r->width = fb->width;
2311 r->depth = fb->depth;
2312 r->bpp = fb->bits_per_pixel;
2313 r->pitch = fb->pitches[0];
2314 fb->funcs->create_handle(fb, file_priv, &r->handle);
2315
2316 out:
2317 mutex_unlock(&dev->mode_config.mutex);
2318 return ret;
2319 }
2320
2321 int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
2322 void *data, struct drm_file *file_priv)
2323 {
2324 struct drm_clip_rect __user *clips_ptr;
2325 struct drm_clip_rect *clips = NULL;
2326 struct drm_mode_fb_dirty_cmd *r = data;
2327 struct drm_mode_object *obj;
2328 struct drm_framebuffer *fb;
2329 unsigned flags;
2330 int num_clips;
2331 int ret = 0;
2332
2333 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2334 return -EINVAL;
2335
2336 mutex_lock(&dev->mode_config.mutex);
2337 obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
2338 if (!obj) {
2339 ret = -EINVAL;
2340 goto out_err1;
2341 }
2342 fb = obj_to_fb(obj);
2343
2344 num_clips = r->num_clips;
2345 clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr;
2346
2347 if (!num_clips != !clips_ptr) {
2348 ret = -EINVAL;
2349 goto out_err1;
2350 }
2351
2352 flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
2353
2354 /* If userspace annotates copy, clips must come in pairs */
2355 if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
2356 ret = -EINVAL;
2357 goto out_err1;
2358 }
2359
2360 if (num_clips && clips_ptr) {
2361 if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) {
2362 ret = -EINVAL;
2363 goto out_err1;
2364 }
2365 clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
2366 if (!clips) {
2367 ret = -ENOMEM;
2368 goto out_err1;
2369 }
2370
2371 ret = copy_from_user(clips, clips_ptr,
2372 num_clips * sizeof(*clips));
2373 if (ret) {
2374 ret = -EFAULT;
2375 goto out_err2;
2376 }
2377 }
2378
2379 if (fb->funcs->dirty) {
2380 ret = fb->funcs->dirty(fb, file_priv, flags, r->color,
2381 clips, num_clips);
2382 } else {
2383 ret = -ENOSYS;
2384 goto out_err2;
2385 }
2386
2387 out_err2:
2388 kfree(clips);
2389 out_err1:
2390 mutex_unlock(&dev->mode_config.mutex);
2391 return ret;
2392 }
2393
2394
2395 /**
2396 * drm_fb_release - remove and free the FBs on this file
2397 * @filp: file * from the ioctl
2398 *
2399 * LOCKING:
2400 * Takes mode config lock.
2401 *
2402 * Destroy all the FBs associated with @filp.
2403 *
2404 * Called by the user via ioctl.
2405 *
2406 * RETURNS:
2407 * Zero on success, errno on failure.
2408 */
2409 void drm_fb_release(struct drm_file *priv)
2410 {
2411 struct drm_device *dev = priv->minor->dev;
2412 struct drm_framebuffer *fb, *tfb;
2413
2414 mutex_lock(&dev->mode_config.mutex);
2415 list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
2416 list_del(&fb->filp_head);
2417 fb->funcs->destroy(fb);
2418 }
2419 mutex_unlock(&dev->mode_config.mutex);
2420 }
2421
2422 /**
2423 * drm_mode_attachmode - add a mode to the user mode list
2424 * @dev: DRM device
2425 * @connector: connector to add the mode to
2426 * @mode: mode to add
2427 *
2428 * Add @mode to @connector's user mode list.
2429 */
2430 static int drm_mode_attachmode(struct drm_device *dev,
2431 struct drm_connector *connector,
2432 struct drm_display_mode *mode)
2433 {
2434 int ret = 0;
2435
2436 list_add_tail(&mode->head, &connector->user_modes);
2437 return ret;
2438 }
2439
2440 int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc,
2441 struct drm_display_mode *mode)
2442 {
2443 struct drm_connector *connector;
2444 int ret = 0;
2445 struct drm_display_mode *dup_mode;
2446 int need_dup = 0;
2447 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2448 if (!connector->encoder)
2449 break;
2450 if (connector->encoder->crtc == crtc) {
2451 if (need_dup)
2452 dup_mode = drm_mode_duplicate(dev, mode);
2453 else
2454 dup_mode = mode;
2455 ret = drm_mode_attachmode(dev, connector, dup_mode);
2456 if (ret)
2457 return ret;
2458 need_dup = 1;
2459 }
2460 }
2461 return 0;
2462 }
2463 EXPORT_SYMBOL(drm_mode_attachmode_crtc);
2464
2465 static int drm_mode_detachmode(struct drm_device *dev,
2466 struct drm_connector *connector,
2467 struct drm_display_mode *mode)
2468 {
2469 int found = 0;
2470 int ret = 0;
2471 struct drm_display_mode *match_mode, *t;
2472
2473 list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) {
2474 if (drm_mode_equal(match_mode, mode)) {
2475 list_del(&match_mode->head);
2476 drm_mode_destroy(dev, match_mode);
2477 found = 1;
2478 break;
2479 }
2480 }
2481
2482 if (!found)
2483 ret = -EINVAL;
2484
2485 return ret;
2486 }
2487
2488 int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode)
2489 {
2490 struct drm_connector *connector;
2491
2492 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2493 drm_mode_detachmode(dev, connector, mode);
2494 }
2495 return 0;
2496 }
2497 EXPORT_SYMBOL(drm_mode_detachmode_crtc);
2498
2499 /**
2500 * drm_fb_attachmode - Attach a user mode to an connector
2501 * @inode: inode from the ioctl
2502 * @filp: file * from the ioctl
2503 * @cmd: cmd from ioctl
2504 * @arg: arg from ioctl
2505 *
2506 * This attaches a user specified mode to an connector.
2507 * Called by the user via ioctl.
2508 *
2509 * RETURNS:
2510 * Zero on success, errno on failure.
2511 */
2512 int drm_mode_attachmode_ioctl(struct drm_device *dev,
2513 void *data, struct drm_file *file_priv)
2514 {
2515 struct drm_mode_mode_cmd *mode_cmd = data;
2516 struct drm_connector *connector;
2517 struct drm_display_mode *mode;
2518 struct drm_mode_object *obj;
2519 struct drm_mode_modeinfo *umode = &mode_cmd->mode;
2520 int ret = 0;
2521
2522 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2523 return -EINVAL;
2524
2525 mutex_lock(&dev->mode_config.mutex);
2526
2527 obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2528 if (!obj) {
2529 ret = -EINVAL;
2530 goto out;
2531 }
2532 connector = obj_to_connector(obj);
2533
2534 mode = drm_mode_create(dev);
2535 if (!mode) {
2536 ret = -ENOMEM;
2537 goto out;
2538 }
2539
2540 drm_crtc_convert_umode(mode, umode);
2541
2542 ret = drm_mode_attachmode(dev, connector, mode);
2543 out:
2544 mutex_unlock(&dev->mode_config.mutex);
2545 return ret;
2546 }
2547
2548
2549 /**
2550 * drm_fb_detachmode - Detach a user specified mode from an connector
2551 * @inode: inode from the ioctl
2552 * @filp: file * from the ioctl
2553 * @cmd: cmd from ioctl
2554 * @arg: arg from ioctl
2555 *
2556 * Called by the user via ioctl.
2557 *
2558 * RETURNS:
2559 * Zero on success, errno on failure.
2560 */
2561 int drm_mode_detachmode_ioctl(struct drm_device *dev,
2562 void *data, struct drm_file *file_priv)
2563 {
2564 struct drm_mode_object *obj;
2565 struct drm_mode_mode_cmd *mode_cmd = data;
2566 struct drm_connector *connector;
2567 struct drm_display_mode mode;
2568 struct drm_mode_modeinfo *umode = &mode_cmd->mode;
2569 int ret = 0;
2570
2571 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2572 return -EINVAL;
2573
2574 mutex_lock(&dev->mode_config.mutex);
2575
2576 obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2577 if (!obj) {
2578 ret = -EINVAL;
2579 goto out;
2580 }
2581 connector = obj_to_connector(obj);
2582
2583 drm_crtc_convert_umode(&mode, umode);
2584 ret = drm_mode_detachmode(dev, connector, &mode);
2585 out:
2586 mutex_unlock(&dev->mode_config.mutex);
2587 return ret;
2588 }
2589
2590 struct drm_property *drm_property_create(struct drm_device *dev, int flags,
2591 const char *name, int num_values)
2592 {
2593 struct drm_property *property = NULL;
2594
2595 property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
2596 if (!property)
2597 return NULL;
2598
2599 if (num_values) {
2600 property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
2601 if (!property->values)
2602 goto fail;
2603 }
2604
2605 drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
2606 property->flags = flags;
2607 property->num_values = num_values;
2608 INIT_LIST_HEAD(&property->enum_blob_list);
2609
2610 if (name) {
2611 strncpy(property->name, name, DRM_PROP_NAME_LEN);
2612 property->name[DRM_PROP_NAME_LEN-1] = '\0';
2613 }
2614
2615 list_add_tail(&property->head, &dev->mode_config.property_list);
2616 return property;
2617 fail:
2618 kfree(property);
2619 return NULL;
2620 }
2621 EXPORT_SYMBOL(drm_property_create);
2622
2623 int drm_property_add_enum(struct drm_property *property, int index,
2624 uint64_t value, const char *name)
2625 {
2626 struct drm_property_enum *prop_enum;
2627
2628 if (!(property->flags & DRM_MODE_PROP_ENUM))
2629 return -EINVAL;
2630
2631 if (!list_empty(&property->enum_blob_list)) {
2632 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2633 if (prop_enum->value == value) {
2634 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2635 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2636 return 0;
2637 }
2638 }
2639 }
2640
2641 prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
2642 if (!prop_enum)
2643 return -ENOMEM;
2644
2645 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2646 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2647 prop_enum->value = value;
2648
2649 property->values[index] = value;
2650 list_add_tail(&prop_enum->head, &property->enum_blob_list);
2651 return 0;
2652 }
2653 EXPORT_SYMBOL(drm_property_add_enum);
2654
2655 void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
2656 {
2657 struct drm_property_enum *prop_enum, *pt;
2658
2659 list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
2660 list_del(&prop_enum->head);
2661 kfree(prop_enum);
2662 }
2663
2664 if (property->num_values)
2665 kfree(property->values);
2666 drm_mode_object_put(dev, &property->base);
2667 list_del(&property->head);
2668 kfree(property);
2669 }
2670 EXPORT_SYMBOL(drm_property_destroy);
2671
2672 int drm_connector_attach_property(struct drm_connector *connector,
2673 struct drm_property *property, uint64_t init_val)
2674 {
2675 int i;
2676
2677 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2678 if (connector->property_ids[i] == 0) {
2679 connector->property_ids[i] = property->base.id;
2680 connector->property_values[i] = init_val;
2681 break;
2682 }
2683 }
2684
2685 if (i == DRM_CONNECTOR_MAX_PROPERTY)
2686 return -EINVAL;
2687 return 0;
2688 }
2689 EXPORT_SYMBOL(drm_connector_attach_property);
2690
2691 int drm_connector_property_set_value(struct drm_connector *connector,
2692 struct drm_property *property, uint64_t value)
2693 {
2694 int i;
2695
2696 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2697 if (connector->property_ids[i] == property->base.id) {
2698 connector->property_values[i] = value;
2699 break;
2700 }
2701 }
2702
2703 if (i == DRM_CONNECTOR_MAX_PROPERTY)
2704 return -EINVAL;
2705 return 0;
2706 }
2707 EXPORT_SYMBOL(drm_connector_property_set_value);
2708
2709 int drm_connector_property_get_value(struct drm_connector *connector,
2710 struct drm_property *property, uint64_t *val)
2711 {
2712 int i;
2713
2714 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2715 if (connector->property_ids[i] == property->base.id) {
2716 *val = connector->property_values[i];
2717 break;
2718 }
2719 }
2720
2721 if (i == DRM_CONNECTOR_MAX_PROPERTY)
2722 return -EINVAL;
2723 return 0;
2724 }
2725 EXPORT_SYMBOL(drm_connector_property_get_value);
2726
2727 int drm_mode_getproperty_ioctl(struct drm_device *dev,
2728 void *data, struct drm_file *file_priv)
2729 {
2730 struct drm_mode_object *obj;
2731 struct drm_mode_get_property *out_resp = data;
2732 struct drm_property *property;
2733 int enum_count = 0;
2734 int blob_count = 0;
2735 int value_count = 0;
2736 int ret = 0, i;
2737 int copied;
2738 struct drm_property_enum *prop_enum;
2739 struct drm_mode_property_enum __user *enum_ptr;
2740 struct drm_property_blob *prop_blob;
2741 uint32_t __user *blob_id_ptr;
2742 uint64_t __user *values_ptr;
2743 uint32_t __user *blob_length_ptr;
2744
2745 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2746 return -EINVAL;
2747
2748 mutex_lock(&dev->mode_config.mutex);
2749 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2750 if (!obj) {
2751 ret = -EINVAL;
2752 goto done;
2753 }
2754 property = obj_to_property(obj);
2755
2756 if (property->flags & DRM_MODE_PROP_ENUM) {
2757 list_for_each_entry(prop_enum, &property->enum_blob_list, head)
2758 enum_count++;
2759 } else if (property->flags & DRM_MODE_PROP_BLOB) {
2760 list_for_each_entry(prop_blob, &property->enum_blob_list, head)
2761 blob_count++;
2762 }
2763
2764 value_count = property->num_values;
2765
2766 strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
2767 out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
2768 out_resp->flags = property->flags;
2769
2770 if ((out_resp->count_values >= value_count) && value_count) {
2771 values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr;
2772 for (i = 0; i < value_count; i++) {
2773 if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
2774 ret = -EFAULT;
2775 goto done;
2776 }
2777 }
2778 }
2779 out_resp->count_values = value_count;
2780
2781 if (property->flags & DRM_MODE_PROP_ENUM) {
2782 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
2783 copied = 0;
2784 enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr;
2785 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2786
2787 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
2788 ret = -EFAULT;
2789 goto done;
2790 }
2791
2792 if (copy_to_user(&enum_ptr[copied].name,
2793 &prop_enum->name, DRM_PROP_NAME_LEN)) {
2794 ret = -EFAULT;
2795 goto done;
2796 }
2797 copied++;
2798 }
2799 }
2800 out_resp->count_enum_blobs = enum_count;
2801 }
2802
2803 if (property->flags & DRM_MODE_PROP_BLOB) {
2804 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
2805 copied = 0;
2806 blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr;
2807 blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr;
2808
2809 list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
2810 if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
2811 ret = -EFAULT;
2812 goto done;
2813 }
2814
2815 if (put_user(prop_blob->length, blob_length_ptr + copied)) {
2816 ret = -EFAULT;
2817 goto done;
2818 }
2819
2820 copied++;
2821 }
2822 }
2823 out_resp->count_enum_blobs = blob_count;
2824 }
2825 done:
2826 mutex_unlock(&dev->mode_config.mutex);
2827 return ret;
2828 }
2829
2830 static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
2831 void *data)
2832 {
2833 struct drm_property_blob *blob;
2834
2835 if (!length || !data)
2836 return NULL;
2837
2838 blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
2839 if (!blob)
2840 return NULL;
2841
2842 blob->data = (void *)((char *)blob + sizeof(struct drm_property_blob));
2843 blob->length = length;
2844
2845 memcpy(blob->data, data, length);
2846
2847 drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
2848
2849 list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
2850 return blob;
2851 }
2852
2853 static void drm_property_destroy_blob(struct drm_device *dev,
2854 struct drm_property_blob *blob)
2855 {
2856 drm_mode_object_put(dev, &blob->base);
2857 list_del(&blob->head);
2858 kfree(blob);
2859 }
2860
2861 int drm_mode_getblob_ioctl(struct drm_device *dev,
2862 void *data, struct drm_file *file_priv)
2863 {
2864 struct drm_mode_object *obj;
2865 struct drm_mode_get_blob *out_resp = data;
2866 struct drm_property_blob *blob;
2867 int ret = 0;
2868 void __user *blob_ptr;
2869
2870 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2871 return -EINVAL;
2872
2873 mutex_lock(&dev->mode_config.mutex);
2874 obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
2875 if (!obj) {
2876 ret = -EINVAL;
2877 goto done;
2878 }
2879 blob = obj_to_blob(obj);
2880
2881 if (out_resp->length == blob->length) {
2882 blob_ptr = (void __user *)(unsigned long)out_resp->data;
2883 if (copy_to_user(blob_ptr, blob->data, blob->length)){
2884 ret = -EFAULT;
2885 goto done;
2886 }
2887 }
2888 out_resp->length = blob->length;
2889
2890 done:
2891 mutex_unlock(&dev->mode_config.mutex);
2892 return ret;
2893 }
2894
2895 int drm_mode_connector_update_edid_property(struct drm_connector *connector,
2896 struct edid *edid)
2897 {
2898 struct drm_device *dev = connector->dev;
2899 int ret = 0, size;
2900
2901 if (connector->edid_blob_ptr)
2902 drm_property_destroy_blob(dev, connector->edid_blob_ptr);
2903
2904 /* Delete edid, when there is none. */
2905 if (!edid) {
2906 connector->edid_blob_ptr = NULL;
2907 ret = drm_connector_property_set_value(connector, dev->mode_config.edid_property, 0);
2908 return ret;
2909 }
2910
2911 size = EDID_LENGTH * (1 + edid->extensions);
2912 connector->edid_blob_ptr = drm_property_create_blob(connector->dev,
2913 size, edid);
2914
2915 ret = drm_connector_property_set_value(connector,
2916 dev->mode_config.edid_property,
2917 connector->edid_blob_ptr->base.id);
2918
2919 return ret;
2920 }
2921 EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
2922
2923 int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
2924 void *data, struct drm_file *file_priv)
2925 {
2926 struct drm_mode_connector_set_property *out_resp = data;
2927 struct drm_mode_object *obj;
2928 struct drm_property *property;
2929 struct drm_connector *connector;
2930 int ret = -EINVAL;
2931 int i;
2932
2933 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2934 return -EINVAL;
2935
2936 mutex_lock(&dev->mode_config.mutex);
2937
2938 obj = drm_mode_object_find(dev, out_resp->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2939 if (!obj) {
2940 goto out;
2941 }
2942 connector = obj_to_connector(obj);
2943
2944 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2945 if (connector->property_ids[i] == out_resp->prop_id)
2946 break;
2947 }
2948
2949 if (i == DRM_CONNECTOR_MAX_PROPERTY) {
2950 goto out;
2951 }
2952
2953 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2954 if (!obj) {
2955 goto out;
2956 }
2957 property = obj_to_property(obj);
2958
2959 if (property->flags & DRM_MODE_PROP_IMMUTABLE)
2960 goto out;
2961
2962 if (property->flags & DRM_MODE_PROP_RANGE) {
2963 if (out_resp->value < property->values[0])
2964 goto out;
2965
2966 if (out_resp->value > property->values[1])
2967 goto out;
2968 } else {
2969 int found = 0;
2970 for (i = 0; i < property->num_values; i++) {
2971 if (property->values[i] == out_resp->value) {
2972 found = 1;
2973 break;
2974 }
2975 }
2976 if (!found) {
2977 goto out;
2978 }
2979 }
2980
2981 /* Do DPMS ourselves */
2982 if (property == connector->dev->mode_config.dpms_property) {
2983 if (connector->funcs->dpms)
2984 (*connector->funcs->dpms)(connector, (int) out_resp->value);
2985 ret = 0;
2986 } else if (connector->funcs->set_property)
2987 ret = connector->funcs->set_property(connector, property, out_resp->value);
2988
2989 /* store the property value if successful */
2990 if (!ret)
2991 drm_connector_property_set_value(connector, property, out_resp->value);
2992 out:
2993 mutex_unlock(&dev->mode_config.mutex);
2994 return ret;
2995 }
2996
2997 int drm_mode_connector_attach_encoder(struct drm_connector *connector,
2998 struct drm_encoder *encoder)
2999 {
3000 int i;
3001
3002 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3003 if (connector->encoder_ids[i] == 0) {
3004 connector->encoder_ids[i] = encoder->base.id;
3005 return 0;
3006 }
3007 }
3008 return -ENOMEM;
3009 }
3010 EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
3011
3012 void drm_mode_connector_detach_encoder(struct drm_connector *connector,
3013 struct drm_encoder *encoder)
3014 {
3015 int i;
3016 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3017 if (connector->encoder_ids[i] == encoder->base.id) {
3018 connector->encoder_ids[i] = 0;
3019 if (connector->encoder == encoder)
3020 connector->encoder = NULL;
3021 break;
3022 }
3023 }
3024 }
3025 EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
3026
3027 int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
3028 int gamma_size)
3029 {
3030 crtc->gamma_size = gamma_size;
3031
3032 crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
3033 if (!crtc->gamma_store) {
3034 crtc->gamma_size = 0;
3035 return -ENOMEM;
3036 }
3037
3038 return 0;
3039 }
3040 EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
3041
3042 int drm_mode_gamma_set_ioctl(struct drm_device *dev,
3043 void *data, struct drm_file *file_priv)
3044 {
3045 struct drm_mode_crtc_lut *crtc_lut = data;
3046 struct drm_mode_object *obj;
3047 struct drm_crtc *crtc;
3048 void *r_base, *g_base, *b_base;
3049 int size;
3050 int ret = 0;
3051
3052 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3053 return -EINVAL;
3054
3055 mutex_lock(&dev->mode_config.mutex);
3056 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3057 if (!obj) {
3058 ret = -EINVAL;
3059 goto out;
3060 }
3061 crtc = obj_to_crtc(obj);
3062
3063 /* memcpy into gamma store */
3064 if (crtc_lut->gamma_size != crtc->gamma_size) {
3065 ret = -EINVAL;
3066 goto out;
3067 }
3068
3069 size = crtc_lut->gamma_size * (sizeof(uint16_t));
3070 r_base = crtc->gamma_store;
3071 if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
3072 ret = -EFAULT;
3073 goto out;
3074 }
3075
3076 g_base = r_base + size;
3077 if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
3078 ret = -EFAULT;
3079 goto out;
3080 }
3081
3082 b_base = g_base + size;
3083 if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
3084 ret = -EFAULT;
3085 goto out;
3086 }
3087
3088 crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
3089
3090 out:
3091 mutex_unlock(&dev->mode_config.mutex);
3092 return ret;
3093
3094 }
3095
3096 int drm_mode_gamma_get_ioctl(struct drm_device *dev,
3097 void *data, struct drm_file *file_priv)
3098 {
3099 struct drm_mode_crtc_lut *crtc_lut = data;
3100 struct drm_mode_object *obj;
3101 struct drm_crtc *crtc;
3102 void *r_base, *g_base, *b_base;
3103 int size;
3104 int ret = 0;
3105
3106 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3107 return -EINVAL;
3108
3109 mutex_lock(&dev->mode_config.mutex);
3110 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3111 if (!obj) {
3112 ret = -EINVAL;
3113 goto out;
3114 }
3115 crtc = obj_to_crtc(obj);
3116
3117 /* memcpy into gamma store */
3118 if (crtc_lut->gamma_size != crtc->gamma_size) {
3119 ret = -EINVAL;
3120 goto out;
3121 }
3122
3123 size = crtc_lut->gamma_size * (sizeof(uint16_t));
3124 r_base = crtc->gamma_store;
3125 if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
3126 ret = -EFAULT;
3127 goto out;
3128 }
3129
3130 g_base = r_base + size;
3131 if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
3132 ret = -EFAULT;
3133 goto out;
3134 }
3135
3136 b_base = g_base + size;
3137 if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
3138 ret = -EFAULT;
3139 goto out;
3140 }
3141 out:
3142 mutex_unlock(&dev->mode_config.mutex);
3143 return ret;
3144 }
3145
3146 int drm_mode_page_flip_ioctl(struct drm_device *dev,
3147 void *data, struct drm_file *file_priv)
3148 {
3149 struct drm_mode_crtc_page_flip *page_flip = data;
3150 struct drm_mode_object *obj;
3151 struct drm_crtc *crtc;
3152 struct drm_framebuffer *fb;
3153 struct drm_pending_vblank_event *e = NULL;
3154 unsigned long flags;
3155 int ret = -EINVAL;
3156
3157 if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
3158 page_flip->reserved != 0)
3159 return -EINVAL;
3160
3161 mutex_lock(&dev->mode_config.mutex);
3162 obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC);
3163 if (!obj)
3164 goto out;
3165 crtc = obj_to_crtc(obj);
3166
3167 if (crtc->fb == NULL) {
3168 /* The framebuffer is currently unbound, presumably
3169 * due to a hotplug event, that userspace has not
3170 * yet discovered.
3171 */
3172 ret = -EBUSY;
3173 goto out;
3174 }
3175
3176 if (crtc->funcs->page_flip == NULL)
3177 goto out;
3178
3179 obj = drm_mode_object_find(dev, page_flip->fb_id, DRM_MODE_OBJECT_FB);
3180 if (!obj)
3181 goto out;
3182 fb = obj_to_fb(obj);
3183
3184 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3185 ret = -ENOMEM;
3186 spin_lock_irqsave(&dev->event_lock, flags);
3187 if (file_priv->event_space < sizeof e->event) {
3188 spin_unlock_irqrestore(&dev->event_lock, flags);
3189 goto out;
3190 }
3191 file_priv->event_space -= sizeof e->event;
3192 spin_unlock_irqrestore(&dev->event_lock, flags);
3193
3194 e = kzalloc(sizeof *e, GFP_KERNEL);
3195 if (e == NULL) {
3196 spin_lock_irqsave(&dev->event_lock, flags);
3197 file_priv->event_space += sizeof e->event;
3198 spin_unlock_irqrestore(&dev->event_lock, flags);
3199 goto out;
3200 }
3201
3202 e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
3203 e->event.base.length = sizeof e->event;
3204 e->event.user_data = page_flip->user_data;
3205 e->base.event = &e->event.base;
3206 e->base.file_priv = file_priv;
3207 e->base.destroy =
3208 (void (*) (struct drm_pending_event *)) kfree;
3209 }
3210
3211 ret = crtc->funcs->page_flip(crtc, fb, e);
3212 if (ret) {
3213 spin_lock_irqsave(&dev->event_lock, flags);
3214 file_priv->event_space += sizeof e->event;
3215 spin_unlock_irqrestore(&dev->event_lock, flags);
3216 kfree(e);
3217 }
3218
3219 out:
3220 mutex_unlock(&dev->mode_config.mutex);
3221 return ret;
3222 }
3223
3224 void drm_mode_config_reset(struct drm_device *dev)
3225 {
3226 struct drm_crtc *crtc;
3227 struct drm_encoder *encoder;
3228 struct drm_connector *connector;
3229
3230 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
3231 if (crtc->funcs->reset)
3232 crtc->funcs->reset(crtc);
3233
3234 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
3235 if (encoder->funcs->reset)
3236 encoder->funcs->reset(encoder);
3237
3238 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
3239 if (connector->funcs->reset)
3240 connector->funcs->reset(connector);
3241 }
3242 EXPORT_SYMBOL(drm_mode_config_reset);
3243
3244 int drm_mode_create_dumb_ioctl(struct drm_device *dev,
3245 void *data, struct drm_file *file_priv)
3246 {
3247 struct drm_mode_create_dumb *args = data;
3248
3249 if (!dev->driver->dumb_create)
3250 return -ENOSYS;
3251 return dev->driver->dumb_create(file_priv, dev, args);
3252 }
3253
3254 int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
3255 void *data, struct drm_file *file_priv)
3256 {
3257 struct drm_mode_map_dumb *args = data;
3258
3259 /* call driver ioctl to get mmap offset */
3260 if (!dev->driver->dumb_map_offset)
3261 return -ENOSYS;
3262
3263 return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset);
3264 }
3265
3266 int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
3267 void *data, struct drm_file *file_priv)
3268 {
3269 struct drm_mode_destroy_dumb *args = data;
3270
3271 if (!dev->driver->dumb_destroy)
3272 return -ENOSYS;
3273
3274 return dev->driver->dumb_destroy(file_priv, dev, args->handle);
3275 }
3276
3277 /*
3278 * Just need to support RGB formats here for compat with code that doesn't
3279 * use pixel formats directly yet.
3280 */
3281 void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
3282 int *bpp)
3283 {
3284 switch (format) {
3285 case DRM_FORMAT_RGB332:
3286 case DRM_FORMAT_BGR233:
3287 *depth = 8;
3288 *bpp = 8;
3289 break;
3290 case DRM_FORMAT_XRGB1555:
3291 case DRM_FORMAT_XBGR1555:
3292 case DRM_FORMAT_RGBX5551:
3293 case DRM_FORMAT_BGRX5551:
3294 case DRM_FORMAT_ARGB1555:
3295 case DRM_FORMAT_ABGR1555:
3296 case DRM_FORMAT_RGBA5551:
3297 case DRM_FORMAT_BGRA5551:
3298 *depth = 15;
3299 *bpp = 16;
3300 break;
3301 case DRM_FORMAT_RGB565:
3302 case DRM_FORMAT_BGR565:
3303 *depth = 16;
3304 *bpp = 16;
3305 break;
3306 case DRM_FORMAT_RGB888:
3307 case DRM_FORMAT_BGR888:
3308 *depth = 24;
3309 *bpp = 24;
3310 break;
3311 case DRM_FORMAT_XRGB8888:
3312 case DRM_FORMAT_XBGR8888:
3313 case DRM_FORMAT_RGBX8888:
3314 case DRM_FORMAT_BGRX8888:
3315 *depth = 24;
3316 *bpp = 32;
3317 break;
3318 case DRM_FORMAT_XRGB2101010:
3319 case DRM_FORMAT_XBGR2101010:
3320 case DRM_FORMAT_RGBX1010102:
3321 case DRM_FORMAT_BGRX1010102:
3322 case DRM_FORMAT_ARGB2101010:
3323 case DRM_FORMAT_ABGR2101010:
3324 case DRM_FORMAT_RGBA1010102:
3325 case DRM_FORMAT_BGRA1010102:
3326 *depth = 30;
3327 *bpp = 32;
3328 break;
3329 case DRM_FORMAT_ARGB8888:
3330 case DRM_FORMAT_ABGR8888:
3331 case DRM_FORMAT_RGBA8888:
3332 case DRM_FORMAT_BGRA8888:
3333 *depth = 32;
3334 *bpp = 32;
3335 break;
3336 default:
3337 DRM_DEBUG_KMS("unsupported pixel format\n");
3338 *depth = 0;
3339 *bpp = 0;
3340 break;
3341 }
3342 }
3343 EXPORT_SYMBOL(drm_fb_get_bpp_depth);
Linux kernel - Deliverables
This page took 0.123002 seconds and 5 git commands to generate.