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UAPI: (Scripted) Convert #include "..." to #include <path/...> in drivers/gpu/
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / gpu / drm / drm_crtc.c
CommitLineData
f453ba04
DA		 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>
5a0e3ad6 33#include <linux/slab.h>
2d1a8a48 34#include <linux/export.h>
760285e7
DH		 35#include <drm/drmP.h>
36#include <drm/drm_crtc.h>
37#include <drm/drm_edid.h>
38#include <drm/drm_fourcc.h>
f453ba04 39
f453ba04
DA		 40/* Avoid boilerplate. I'm tired of typing. */
41#define DRM_ENUM_NAME_FN(fnname, list) \
42 char *fnname(int val) \
43 { \
44 int i; \
45 for (i = 0; i < ARRAY_SIZE(list); i++) { \
46 if (list[i].type == val) \
47 return list[i].name; \
48 } \
49 return "(unknown)"; \
50 }
51
52/*
53 * Global properties
54 */
55static struct drm_prop_enum_list drm_dpms_enum_list[] =
56{ { DRM_MODE_DPMS_ON, "On" },
57 { DRM_MODE_DPMS_STANDBY, "Standby" },
58 { DRM_MODE_DPMS_SUSPEND, "Suspend" },
59 { DRM_MODE_DPMS_OFF, "Off" }
60};
61
62DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list)
63
64/*
65 * Optional properties
66 */
67static struct drm_prop_enum_list drm_scaling_mode_enum_list[] =
68{
53bd8389
JB		 69 { DRM_MODE_SCALE_NONE, "None" },
70 { DRM_MODE_SCALE_FULLSCREEN, "Full" },
71 { DRM_MODE_SCALE_CENTER, "Center" },
72 { DRM_MODE_SCALE_ASPECT, "Full aspect" },
f453ba04
DA		 73};
74
75static struct drm_prop_enum_list drm_dithering_mode_enum_list[] =
76{
77 { DRM_MODE_DITHERING_OFF, "Off" },
78 { DRM_MODE_DITHERING_ON, "On" },
92897b5c 79 { DRM_MODE_DITHERING_AUTO, "Automatic" },
f453ba04
DA		 80};
81
82/*
83 * Non-global properties, but "required" for certain connectors.
84 */
85static struct drm_prop_enum_list drm_dvi_i_select_enum_list[] =
86{
87 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
88 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
89 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
90};
91
92DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list)
93
94static struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] =
95{
96 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
97 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
98 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
99};
100
101DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name,
102 drm_dvi_i_subconnector_enum_list)
103
104static struct drm_prop_enum_list drm_tv_select_enum_list[] =
105{
106 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
107 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
108 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
109 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
aeaa1ad3 110 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
f453ba04
DA		 111};
112
113DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list)
114
115static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] =
116{
117 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
118 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
119 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
120 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
aeaa1ad3 121 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
f453ba04
DA		 122};
123
124DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
125 drm_tv_subconnector_enum_list)
126
884840aa
JB		 127static struct drm_prop_enum_list drm_dirty_info_enum_list[] = {
128 { DRM_MODE_DIRTY_OFF, "Off" },
129 { DRM_MODE_DIRTY_ON, "On" },
130 { DRM_MODE_DIRTY_ANNOTATE, "Annotate" },
131};
132
133DRM_ENUM_NAME_FN(drm_get_dirty_info_name,
134 drm_dirty_info_enum_list)
135
f453ba04
DA		 136struct drm_conn_prop_enum_list {
137 int type;
138 char *name;
139 int count;
140};
141
142/*
143 * Connector and encoder types.
144 */
145static struct drm_conn_prop_enum_list drm_connector_enum_list[] =
146{ { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 },
147 { DRM_MODE_CONNECTOR_VGA, "VGA", 0 },
148 { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 },
149 { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 },
150 { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 },
151 { DRM_MODE_CONNECTOR_Composite, "Composite", 0 },
152 { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 },
153 { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 },
154 { DRM_MODE_CONNECTOR_Component, "Component", 0 },
e76116ca
AD		 155 { DRM_MODE_CONNECTOR_9PinDIN, "DIN", 0 },
156 { DRM_MODE_CONNECTOR_DisplayPort, "DP", 0 },
157 { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A", 0 },
158 { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B", 0 },
74bd3c26 159 { DRM_MODE_CONNECTOR_TV, "TV", 0 },
e76116ca 160 { DRM_MODE_CONNECTOR_eDP, "eDP", 0 },
a7331e5c 161 { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual", 0},
f453ba04
DA		 162};
163
164static struct drm_prop_enum_list drm_encoder_enum_list[] =
165{ { DRM_MODE_ENCODER_NONE, "None" },
166 { DRM_MODE_ENCODER_DAC, "DAC" },
167 { DRM_MODE_ENCODER_TMDS, "TMDS" },
168 { DRM_MODE_ENCODER_LVDS, "LVDS" },
169 { DRM_MODE_ENCODER_TVDAC, "TV" },
a7331e5c 170 { DRM_MODE_ENCODER_VIRTUAL, "Virtual" },
f453ba04
DA		 171};
172
173char *drm_get_encoder_name(struct drm_encoder *encoder)
174{
175 static char buf[32];
176
177 snprintf(buf, 32, "%s-%d",
178 drm_encoder_enum_list[encoder->encoder_type].name,
179 encoder->base.id);
180 return buf;
181}
13a8195b 182EXPORT_SYMBOL(drm_get_encoder_name);
f453ba04
DA		 183
184char *drm_get_connector_name(struct drm_connector *connector)
185{
186 static char buf[32];
187
188 snprintf(buf, 32, "%s-%d",
189 drm_connector_enum_list[connector->connector_type].name,
190 connector->connector_type_id);
191 return buf;
192}
193EXPORT_SYMBOL(drm_get_connector_name);
194
195char *drm_get_connector_status_name(enum drm_connector_status status)
196{
197 if (status == connector_status_connected)
198 return "connected";
199 else if (status == connector_status_disconnected)
200 return "disconnected";
201 else
202 return "unknown";
203}
204
205/**
206 * drm_mode_object_get - allocate a new identifier
207 * @dev: DRM device
208 * @ptr: object pointer, used to generate unique ID
209 * @type: object type
210 *
211 * LOCKING:
f453ba04
DA		 212 *
213 * Create a unique identifier based on @ptr in @dev's identifier space. Used
214 * for tracking modes, CRTCs and connectors.
215 *
216 * RETURNS:
217 * New unique (relative to other objects in @dev) integer identifier for the
218 * object.
219 */
220static int drm_mode_object_get(struct drm_device *dev,
221 struct drm_mode_object *obj, uint32_t obj_type)
222{
223 int new_id = 0;
224 int ret;
225
f453ba04
DA		 226again:
227 if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) {
228 DRM_ERROR("Ran out memory getting a mode number\n");
f1ae126c 229 return -ENOMEM;
f453ba04
DA		 230 }
231
ad2563c2 232 mutex_lock(&dev->mode_config.idr_mutex);
f453ba04 233 ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id);
ad2563c2 234 mutex_unlock(&dev->mode_config.idr_mutex);
f453ba04
DA		 235 if (ret == -EAGAIN)
236 goto again;
f1ae126c
VS		 237 else if (ret)
238 return ret;
f453ba04
DA		 239
240 obj->id = new_id;
241 obj->type = obj_type;
242 return 0;
243}
244
245/**
246 * drm_mode_object_put - free an identifer
247 * @dev: DRM device
248 * @id: ID to free
249 *
250 * LOCKING:
251 * Caller must hold DRM mode_config lock.
252 *
253 * Free @id from @dev's unique identifier pool.
254 */
255static void drm_mode_object_put(struct drm_device *dev,
256 struct drm_mode_object *object)
257{
ad2563c2 258 mutex_lock(&dev->mode_config.idr_mutex);
f453ba04 259 idr_remove(&dev->mode_config.crtc_idr, object->id);
ad2563c2 260 mutex_unlock(&dev->mode_config.idr_mutex);
f453ba04
DA		 261}
262
7a9c9060
DV		 263struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
264 uint32_t id, uint32_t type)
f453ba04 265{
ad2563c2 266 struct drm_mode_object *obj = NULL;
f453ba04 267
ad2563c2 268 mutex_lock(&dev->mode_config.idr_mutex);
f453ba04
DA		 269 obj = idr_find(&dev->mode_config.crtc_idr, id);
270 if (!obj || (obj->type != type) || (obj->id != id))
ad2563c2
JB		 271 obj = NULL;
272 mutex_unlock(&dev->mode_config.idr_mutex);
f453ba04
DA		 273
274 return obj;
275}
276EXPORT_SYMBOL(drm_mode_object_find);
277
f453ba04
DA		 278/**
279 * drm_framebuffer_init - initialize a framebuffer
280 * @dev: DRM device
281 *
282 * LOCKING:
283 * Caller must hold mode config lock.
284 *
285 * Allocates an ID for the framebuffer's parent mode object, sets its mode
286 * functions & device file and adds it to the master fd list.
287 *
288 * RETURNS:
af901ca1 289 * Zero on success, error code on failure.
f453ba04
DA		 290 */
291int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
292 const struct drm_framebuffer_funcs *funcs)
293{
294 int ret;
295
296 ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
6bfc56aa 297 if (ret)
f453ba04 298 return ret;
f453ba04
DA		 299
300 fb->dev = dev;
301 fb->funcs = funcs;
302 dev->mode_config.num_fb++;
303 list_add(&fb->head, &dev->mode_config.fb_list);
304
305 return 0;
306}
307EXPORT_SYMBOL(drm_framebuffer_init);
308
309/**
310 * drm_framebuffer_cleanup - remove a framebuffer object
311 * @fb: framebuffer to remove
312 *
313 * LOCKING:
314 * Caller must hold mode config lock.
315 *
316 * Scans all the CRTCs in @dev's mode_config. If they're using @fb, removes
317 * it, setting it to NULL.
318 */
319void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
320{
321 struct drm_device *dev = fb->dev;
322 struct drm_crtc *crtc;
8cf5c917 323 struct drm_plane *plane;
5ef5f72f
DA		 324 struct drm_mode_set set;
325 int ret;
f453ba04
DA		 326
327 /* remove from any CRTC */
328 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
5ef5f72f
DA		 329 if (crtc->fb == fb) {
330 /* should turn off the crtc */
331 memset(&set, 0, sizeof(struct drm_mode_set));
332 set.crtc = crtc;
333 set.fb = NULL;
334 ret = crtc->funcs->set_config(&set);
335 if (ret)
336 DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
337 }
f453ba04
DA		 338 }
339
8cf5c917
JB		 340 list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
341 if (plane->fb == fb) {
342 /* should turn off the crtc */
343 ret = plane->funcs->disable_plane(plane);
344 if (ret)
345 DRM_ERROR("failed to disable plane with busy fb\n");
a9971157
RC		 346 /* disconnect the plane from the fb and crtc: */
347 plane->fb = NULL;
348 plane->crtc = NULL;
8cf5c917
JB		 349 }
350 }
351
f453ba04
DA		 352 drm_mode_object_put(dev, &fb->base);
353 list_del(&fb->head);
354 dev->mode_config.num_fb--;
355}
356EXPORT_SYMBOL(drm_framebuffer_cleanup);
357
358/**
359 * drm_crtc_init - Initialise a new CRTC object
360 * @dev: DRM device
361 * @crtc: CRTC object to init
362 * @funcs: callbacks for the new CRTC
363 *
364 * LOCKING:
3b02ab88 365 * Takes mode_config lock.
f453ba04
DA		 366 *
367 * Inits a new object created as base part of an driver crtc object.
6bfc56aa
VS		 368 *
369 * RETURNS:
370 * Zero on success, error code on failure.
f453ba04 371 */
6bfc56aa 372int drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
f453ba04
DA		 373 const struct drm_crtc_funcs *funcs)
374{
6bfc56aa
VS		 375 int ret;
376
f453ba04
DA		 377 crtc->dev = dev;
378 crtc->funcs = funcs;
379
380 mutex_lock(&dev->mode_config.mutex);
6bfc56aa
VS		 381
382 ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
383 if (ret)
384 goto out;
f453ba04 385
bffd9de0
PZ		 386 crtc->base.properties = &crtc->properties;
387
f453ba04
DA		 388 list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
389 dev->mode_config.num_crtc++;
6bfc56aa
VS		 390
391 out:
f453ba04 392 mutex_unlock(&dev->mode_config.mutex);
6bfc56aa
VS		 393
394 return ret;
f453ba04
DA		 395}
396EXPORT_SYMBOL(drm_crtc_init);
397
398/**
399 * drm_crtc_cleanup - Cleans up the core crtc usage.
400 * @crtc: CRTC to cleanup
401 *
402 * LOCKING:
403 * Caller must hold mode config lock.
404 *
405 * Cleanup @crtc. Removes from drm modesetting space
406 * does NOT free object, caller does that.
407 */
408void drm_crtc_cleanup(struct drm_crtc *crtc)
409{
410 struct drm_device *dev = crtc->dev;
411
412 if (crtc->gamma_store) {
413 kfree(crtc->gamma_store);
414 crtc->gamma_store = NULL;
415 }
416
417 drm_mode_object_put(dev, &crtc->base);
418 list_del(&crtc->head);
419 dev->mode_config.num_crtc--;
420}
421EXPORT_SYMBOL(drm_crtc_cleanup);
422
423/**
424 * drm_mode_probed_add - add a mode to a connector's probed mode list
425 * @connector: connector the new mode
426 * @mode: mode data
427 *
428 * LOCKING:
429 * Caller must hold mode config lock.
430 *
431 * Add @mode to @connector's mode list for later use.
432 */
433void drm_mode_probed_add(struct drm_connector *connector,
434 struct drm_display_mode *mode)
435{
436 list_add(&mode->head, &connector->probed_modes);
437}
438EXPORT_SYMBOL(drm_mode_probed_add);
439
440/**
441 * drm_mode_remove - remove and free a mode
442 * @connector: connector list to modify
443 * @mode: mode to remove
444 *
445 * LOCKING:
446 * Caller must hold mode config lock.
447 *
448 * Remove @mode from @connector's mode list, then free it.
449 */
450void drm_mode_remove(struct drm_connector *connector,
451 struct drm_display_mode *mode)
452{
453 list_del(&mode->head);
554f1d78 454 drm_mode_destroy(connector->dev, mode);
f453ba04
DA		 455}
456EXPORT_SYMBOL(drm_mode_remove);
457
458/**
459 * drm_connector_init - Init a preallocated connector
460 * @dev: DRM device
461 * @connector: the connector to init
462 * @funcs: callbacks for this connector
463 * @name: user visible name of the connector
464 *
465 * LOCKING:
b20f3867 466 * Takes mode config lock.
f453ba04
DA		 467 *
468 * Initialises a preallocated connector. Connectors should be
469 * subclassed as part of driver connector objects.
6bfc56aa
VS		 470 *
471 * RETURNS:
472 * Zero on success, error code on failure.
f453ba04 473 */
6bfc56aa
VS		 474int drm_connector_init(struct drm_device *dev,
475 struct drm_connector *connector,
476 const struct drm_connector_funcs *funcs,
477 int connector_type)
f453ba04 478{
6bfc56aa
VS		 479 int ret;
480
f453ba04
DA		 481 mutex_lock(&dev->mode_config.mutex);
482
6bfc56aa
VS		 483 ret = drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
484 if (ret)
485 goto out;
486
7e3bdf4a 487 connector->base.properties = &connector->properties;
f453ba04
DA		 488 connector->dev = dev;
489 connector->funcs = funcs;
f453ba04
DA		 490 connector->connector_type = connector_type;
491 connector->connector_type_id =
492 ++drm_connector_enum_list[connector_type].count; /* TODO */
493 INIT_LIST_HEAD(&connector->user_modes);
494 INIT_LIST_HEAD(&connector->probed_modes);
495 INIT_LIST_HEAD(&connector->modes);
496 connector->edid_blob_ptr = NULL;
497
498 list_add_tail(&connector->head, &dev->mode_config.connector_list);
499 dev->mode_config.num_connector++;
500
a7331e5c
TH		 501 if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL)
502 drm_connector_attach_property(connector,
503 dev->mode_config.edid_property,
504 0);
f453ba04
DA		 505
506 drm_connector_attach_property(connector,
507 dev->mode_config.dpms_property, 0);
508
6bfc56aa 509 out:
f453ba04 510 mutex_unlock(&dev->mode_config.mutex);
6bfc56aa
VS		 511
512 return ret;
f453ba04
DA		 513}
514EXPORT_SYMBOL(drm_connector_init);
515
516/**
517 * drm_connector_cleanup - cleans up an initialised connector
518 * @connector: connector to cleanup
519 *
520 * LOCKING:
b20f3867 521 * Takes mode config lock.
f453ba04
DA		 522 *
523 * Cleans up the connector but doesn't free the object.
524 */
525void drm_connector_cleanup(struct drm_connector *connector)
526{
527 struct drm_device *dev = connector->dev;
528 struct drm_display_mode *mode, *t;
529
530 list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
531 drm_mode_remove(connector, mode);
532
533 list_for_each_entry_safe(mode, t, &connector->modes, head)
534 drm_mode_remove(connector, mode);
535
536 list_for_each_entry_safe(mode, t, &connector->user_modes, head)
537 drm_mode_remove(connector, mode);
538
539 mutex_lock(&dev->mode_config.mutex);
540 drm_mode_object_put(dev, &connector->base);
541 list_del(&connector->head);
6380c509 542 dev->mode_config.num_connector--;
f453ba04
DA		 543 mutex_unlock(&dev->mode_config.mutex);
544}
545EXPORT_SYMBOL(drm_connector_cleanup);
546
cbc7e221
DA		 547void drm_connector_unplug_all(struct drm_device *dev)
548{
549 struct drm_connector *connector;
550
551 /* taking the mode config mutex ends up in a clash with sysfs */
552 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
553 drm_sysfs_connector_remove(connector);
554
555}
556EXPORT_SYMBOL(drm_connector_unplug_all);
557
6bfc56aa 558int drm_encoder_init(struct drm_device *dev,
cbc7e221
DA		 559 struct drm_encoder *encoder,
560 const struct drm_encoder_funcs *funcs,
561 int encoder_type)
f453ba04 562{
6bfc56aa
VS		 563 int ret;
564
f453ba04
DA		 565 mutex_lock(&dev->mode_config.mutex);
566
6bfc56aa
VS		 567 ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
568 if (ret)
569 goto out;
f453ba04 570
6bfc56aa 571 encoder->dev = dev;
f453ba04
DA		 572 encoder->encoder_type = encoder_type;
573 encoder->funcs = funcs;
574
575 list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
576 dev->mode_config.num_encoder++;
577
6bfc56aa 578 out:
f453ba04 579 mutex_unlock(&dev->mode_config.mutex);
6bfc56aa
VS		 580
581 return ret;
f453ba04
DA		 582}
583EXPORT_SYMBOL(drm_encoder_init);
584
585void drm_encoder_cleanup(struct drm_encoder *encoder)
586{
587 struct drm_device *dev = encoder->dev;
588 mutex_lock(&dev->mode_config.mutex);
589 drm_mode_object_put(dev, &encoder->base);
590 list_del(&encoder->head);
6380c509 591 dev->mode_config.num_encoder--;
f453ba04
DA		 592 mutex_unlock(&dev->mode_config.mutex);
593}
594EXPORT_SYMBOL(drm_encoder_cleanup);
595
8cf5c917
JB		 596int drm_plane_init(struct drm_device *dev, struct drm_plane *plane,
597 unsigned long possible_crtcs,
598 const struct drm_plane_funcs *funcs,
0a7eb243
RC		 599 const uint32_t *formats, uint32_t format_count,
600 bool priv)
8cf5c917 601{
6bfc56aa
VS		 602 int ret;
603
8cf5c917
JB		 604 mutex_lock(&dev->mode_config.mutex);
605
6bfc56aa
VS		 606 ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE);
607 if (ret)
608 goto out;
609
4d93914a 610 plane->base.properties = &plane->properties;
8cf5c917 611 plane->dev = dev;
8cf5c917
JB		 612 plane->funcs = funcs;
613 plane->format_types = kmalloc(sizeof(uint32_t) * format_count,
614 GFP_KERNEL);
615 if (!plane->format_types) {
616 DRM_DEBUG_KMS("out of memory when allocating plane\n");
617 drm_mode_object_put(dev, &plane->base);
6bfc56aa
VS		 618 ret = -ENOMEM;
619 goto out;
8cf5c917
JB		 620 }
621
308e5bcb 622 memcpy(plane->format_types, formats, format_count * sizeof(uint32_t));
8cf5c917
JB		 623 plane->format_count = format_count;
624 plane->possible_crtcs = possible_crtcs;
625
0a7eb243
RC		 626 /* private planes are not exposed to userspace, but depending on
627 * display hardware, might be convenient to allow sharing programming
628 * for the scanout engine with the crtc implementation.
629 */
630 if (!priv) {
631 list_add_tail(&plane->head, &dev->mode_config.plane_list);
632 dev->mode_config.num_plane++;
633 } else {
634 INIT_LIST_HEAD(&plane->head);
635 }
8cf5c917 636
6bfc56aa 637 out:
8cf5c917
JB		 638 mutex_unlock(&dev->mode_config.mutex);
639
6bfc56aa 640 return ret;
8cf5c917
JB		 641}
642EXPORT_SYMBOL(drm_plane_init);
643
644void drm_plane_cleanup(struct drm_plane *plane)
645{
646 struct drm_device *dev = plane->dev;
647
648 mutex_lock(&dev->mode_config.mutex);
649 kfree(plane->format_types);
650 drm_mode_object_put(dev, &plane->base);
0a7eb243
RC		 651 /* if not added to a list, it must be a private plane */
652 if (!list_empty(&plane->head)) {
653 list_del(&plane->head);
654 dev->mode_config.num_plane--;
655 }
8cf5c917
JB		 656 mutex_unlock(&dev->mode_config.mutex);
657}
658EXPORT_SYMBOL(drm_plane_cleanup);
659
f453ba04
DA		 660/**
661 * drm_mode_create - create a new display mode
662 * @dev: DRM device
663 *
664 * LOCKING:
665 * Caller must hold DRM mode_config lock.
666 *
667 * Create a new drm_display_mode, give it an ID, and return it.
668 *
669 * RETURNS:
670 * Pointer to new mode on success, NULL on error.
671 */
672struct drm_display_mode *drm_mode_create(struct drm_device *dev)
673{
674 struct drm_display_mode *nmode;
675
676 nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
677 if (!nmode)
678 return NULL;
679
6bfc56aa
VS		 680 if (drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE)) {
681 kfree(nmode);
682 return NULL;
683 }
684
f453ba04
DA		 685 return nmode;
686}
687EXPORT_SYMBOL(drm_mode_create);
688
689/**
690 * drm_mode_destroy - remove a mode
691 * @dev: DRM device
692 * @mode: mode to remove
693 *
694 * LOCKING:
695 * Caller must hold mode config lock.
696 *
697 * Free @mode's unique identifier, then free it.
698 */
699void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
700{
ee34ab5b
VS		 701 if (!mode)
702 return;
703
f453ba04
DA		 704 drm_mode_object_put(dev, &mode->base);
705
706 kfree(mode);
707}
708EXPORT_SYMBOL(drm_mode_destroy);
709
710static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
711{
712 struct drm_property *edid;
713 struct drm_property *dpms;
f453ba04
DA		 714
715 /*
716 * Standard properties (apply to all connectors)
717 */
718 edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
719 DRM_MODE_PROP_IMMUTABLE,
720 "EDID", 0);
721 dev->mode_config.edid_property = edid;
722
4a67d391
SH		 723 dpms = drm_property_create_enum(dev, 0,
724 "DPMS", drm_dpms_enum_list,
725 ARRAY_SIZE(drm_dpms_enum_list));
f453ba04
DA		 726 dev->mode_config.dpms_property = dpms;
727
728 return 0;
729}
730
731/**
732 * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
733 * @dev: DRM device
734 *
735 * Called by a driver the first time a DVI-I connector is made.
736 */
737int drm_mode_create_dvi_i_properties(struct drm_device *dev)
738{
739 struct drm_property *dvi_i_selector;
740 struct drm_property *dvi_i_subconnector;
f453ba04
DA		 741
742 if (dev->mode_config.dvi_i_select_subconnector_property)
743 return 0;
744
745 dvi_i_selector =
4a67d391 746 drm_property_create_enum(dev, 0,
f453ba04 747 "select subconnector",
4a67d391 748 drm_dvi_i_select_enum_list,
f453ba04 749 ARRAY_SIZE(drm_dvi_i_select_enum_list));
f453ba04
DA		 750 dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
751
4a67d391 752 dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
f453ba04 753 "subconnector",
4a67d391 754 drm_dvi_i_subconnector_enum_list,
f453ba04 755 ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
f453ba04
DA		 756 dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
757
758 return 0;
759}
760EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
761
762/**
763 * drm_create_tv_properties - create TV specific connector properties
764 * @dev: DRM device
765 * @num_modes: number of different TV formats (modes) supported
766 * @modes: array of pointers to strings containing name of each format
767 *
768 * Called by a driver's TV initialization routine, this function creates
769 * the TV specific connector properties for a given device. Caller is
770 * responsible for allocating a list of format names and passing them to
771 * this routine.
772 */
773int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
774 char *modes[])
775{
776 struct drm_property *tv_selector;
777 struct drm_property *tv_subconnector;
778 int i;
779
780 if (dev->mode_config.tv_select_subconnector_property)
781 return 0;
782
783 /*
784 * Basic connector properties
785 */
4a67d391 786 tv_selector = drm_property_create_enum(dev, 0,
f453ba04 787 "select subconnector",
4a67d391 788 drm_tv_select_enum_list,
f453ba04 789 ARRAY_SIZE(drm_tv_select_enum_list));
f453ba04
DA		 790 dev->mode_config.tv_select_subconnector_property = tv_selector;
791
792 tv_subconnector =
4a67d391
SH		 793 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
794 "subconnector",
795 drm_tv_subconnector_enum_list,
f453ba04 796 ARRAY_SIZE(drm_tv_subconnector_enum_list));
f453ba04
DA		 797 dev->mode_config.tv_subconnector_property = tv_subconnector;
798
799 /*
800 * Other, TV specific properties: margins & TV modes.
801 */
802 dev->mode_config.tv_left_margin_property =
d9bc3c02 803 drm_property_create_range(dev, 0, "left margin", 0, 100);
f453ba04
DA		 804
805 dev->mode_config.tv_right_margin_property =
d9bc3c02 806 drm_property_create_range(dev, 0, "right margin", 0, 100);
f453ba04
DA		 807
808 dev->mode_config.tv_top_margin_property =
d9bc3c02 809 drm_property_create_range(dev, 0, "top margin", 0, 100);
f453ba04
DA		 810
811 dev->mode_config.tv_bottom_margin_property =
d9bc3c02 812 drm_property_create_range(dev, 0, "bottom margin", 0, 100);
f453ba04
DA		 813
814 dev->mode_config.tv_mode_property =
815 drm_property_create(dev, DRM_MODE_PROP_ENUM,
816 "mode", num_modes);
817 for (i = 0; i < num_modes; i++)
818 drm_property_add_enum(dev->mode_config.tv_mode_property, i,
819 i, modes[i]);
820
b6b7902e 821 dev->mode_config.tv_brightness_property =
d9bc3c02 822 drm_property_create_range(dev, 0, "brightness", 0, 100);
b6b7902e
FJ		 823
824 dev->mode_config.tv_contrast_property =
d9bc3c02 825 drm_property_create_range(dev, 0, "contrast", 0, 100);
b6b7902e
FJ		 826
827 dev->mode_config.tv_flicker_reduction_property =
d9bc3c02 828 drm_property_create_range(dev, 0, "flicker reduction", 0, 100);
b6b7902e 829
a75f0236 830 dev->mode_config.tv_overscan_property =
d9bc3c02 831 drm_property_create_range(dev, 0, "overscan", 0, 100);
a75f0236
FJ		 832
833 dev->mode_config.tv_saturation_property =
d9bc3c02 834 drm_property_create_range(dev, 0, "saturation", 0, 100);
a75f0236
FJ		 835
836 dev->mode_config.tv_hue_property =
d9bc3c02 837 drm_property_create_range(dev, 0, "hue", 0, 100);
a75f0236 838
f453ba04
DA		 839 return 0;
840}
841EXPORT_SYMBOL(drm_mode_create_tv_properties);
842
843/**
844 * drm_mode_create_scaling_mode_property - create scaling mode property
845 * @dev: DRM device
846 *
847 * Called by a driver the first time it's needed, must be attached to desired
848 * connectors.
849 */
850int drm_mode_create_scaling_mode_property(struct drm_device *dev)
851{
852 struct drm_property *scaling_mode;
f453ba04
DA		 853
854 if (dev->mode_config.scaling_mode_property)
855 return 0;
856
857 scaling_mode =
4a67d391
SH		 858 drm_property_create_enum(dev, 0, "scaling mode",
859 drm_scaling_mode_enum_list,
f453ba04 860 ARRAY_SIZE(drm_scaling_mode_enum_list));
f453ba04
DA		 861
862 dev->mode_config.scaling_mode_property = scaling_mode;
863
864 return 0;
865}
866EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
867
868/**
869 * drm_mode_create_dithering_property - create dithering property
870 * @dev: DRM device
871 *
872 * Called by a driver the first time it's needed, must be attached to desired
873 * connectors.
874 */
875int drm_mode_create_dithering_property(struct drm_device *dev)
876{
877 struct drm_property *dithering_mode;
f453ba04
DA		 878
879 if (dev->mode_config.dithering_mode_property)
880 return 0;
881
882 dithering_mode =
4a67d391
SH		 883 drm_property_create_enum(dev, 0, "dithering",
884 drm_dithering_mode_enum_list,
f453ba04 885 ARRAY_SIZE(drm_dithering_mode_enum_list));
f453ba04
DA		 886 dev->mode_config.dithering_mode_property = dithering_mode;
887
888 return 0;
889}
890EXPORT_SYMBOL(drm_mode_create_dithering_property);
891
884840aa
JB		 892/**
893 * drm_mode_create_dirty_property - create dirty property
894 * @dev: DRM device
895 *
896 * Called by a driver the first time it's needed, must be attached to desired
897 * connectors.
898 */
899int drm_mode_create_dirty_info_property(struct drm_device *dev)
900{
901 struct drm_property *dirty_info;
884840aa
JB		 902
903 if (dev->mode_config.dirty_info_property)
904 return 0;
905
906 dirty_info =
4a67d391 907 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE,
884840aa 908 "dirty",
4a67d391 909 drm_dirty_info_enum_list,
884840aa 910 ARRAY_SIZE(drm_dirty_info_enum_list));
884840aa
JB		 911 dev->mode_config.dirty_info_property = dirty_info;
912
913 return 0;
914}
915EXPORT_SYMBOL(drm_mode_create_dirty_info_property);
916
f453ba04
DA		 917/**
918 * drm_mode_config_init - initialize DRM mode_configuration structure
919 * @dev: DRM device
920 *
921 * LOCKING:
922 * None, should happen single threaded at init time.
923 *
924 * Initialize @dev's mode_config structure, used for tracking the graphics
925 * configuration of @dev.
926 */
927void drm_mode_config_init(struct drm_device *dev)
928{
929 mutex_init(&dev->mode_config.mutex);
ad2563c2 930 mutex_init(&dev->mode_config.idr_mutex);
f453ba04 931 INIT_LIST_HEAD(&dev->mode_config.fb_list);
f453ba04
DA		 932 INIT_LIST_HEAD(&dev->mode_config.crtc_list);
933 INIT_LIST_HEAD(&dev->mode_config.connector_list);
934 INIT_LIST_HEAD(&dev->mode_config.encoder_list);
935 INIT_LIST_HEAD(&dev->mode_config.property_list);
936 INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
8cf5c917 937 INIT_LIST_HEAD(&dev->mode_config.plane_list);
f453ba04
DA		 938 idr_init(&dev->mode_config.crtc_idr);
939
940 mutex_lock(&dev->mode_config.mutex);
941 drm_mode_create_standard_connector_properties(dev);
942 mutex_unlock(&dev->mode_config.mutex);
943
944 /* Just to be sure */
945 dev->mode_config.num_fb = 0;
946 dev->mode_config.num_connector = 0;
947 dev->mode_config.num_crtc = 0;
948 dev->mode_config.num_encoder = 0;
f453ba04
DA		 949}
950EXPORT_SYMBOL(drm_mode_config_init);
951
952int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
953{
954 uint32_t total_objects = 0;
955
956 total_objects += dev->mode_config.num_crtc;
957 total_objects += dev->mode_config.num_connector;
958 total_objects += dev->mode_config.num_encoder;
959
f453ba04
DA		 960 group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
961 if (!group->id_list)
962 return -ENOMEM;
963
964 group->num_crtcs = 0;
965 group->num_connectors = 0;
966 group->num_encoders = 0;
967 return 0;
968}
969
970int drm_mode_group_init_legacy_group(struct drm_device *dev,
971 struct drm_mode_group *group)
972{
973 struct drm_crtc *crtc;
974 struct drm_encoder *encoder;
975 struct drm_connector *connector;
976 int ret;
977
978 if ((ret = drm_mode_group_init(dev, group)))
979 return ret;
980
981 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
982 group->id_list[group->num_crtcs++] = crtc->base.id;
983
984 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
985 group->id_list[group->num_crtcs + group->num_encoders++] =
986 encoder->base.id;
987
988 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
989 group->id_list[group->num_crtcs + group->num_encoders +
990 group->num_connectors++] = connector->base.id;
991
992 return 0;
993}
9c1dfc55 994EXPORT_SYMBOL(drm_mode_group_init_legacy_group);
f453ba04
DA		 995
996/**
997 * drm_mode_config_cleanup - free up DRM mode_config info
998 * @dev: DRM device
999 *
1000 * LOCKING:
1001 * Caller must hold mode config lock.
1002 *
1003 * Free up all the connectors and CRTCs associated with this DRM device, then
1004 * free up the framebuffers and associated buffer objects.
1005 *
1006 * FIXME: cleanup any dangling user buffer objects too
1007 */
1008void drm_mode_config_cleanup(struct drm_device *dev)
1009{
1010 struct drm_connector *connector, *ot;
1011 struct drm_crtc *crtc, *ct;
1012 struct drm_encoder *encoder, *enct;
1013 struct drm_framebuffer *fb, *fbt;
1014 struct drm_property *property, *pt;
8cf5c917 1015 struct drm_plane *plane, *plt;
f453ba04
DA		 1016
1017 list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
1018 head) {
1019 encoder->funcs->destroy(encoder);
1020 }
1021
1022 list_for_each_entry_safe(connector, ot,
1023 &dev->mode_config.connector_list, head) {
1024 connector->funcs->destroy(connector);
1025 }
1026
1027 list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
1028 head) {
1029 drm_property_destroy(dev, property);
1030 }
1031
1032 list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
1033 fb->funcs->destroy(fb);
1034 }
1035
1036 list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
1037 crtc->funcs->destroy(crtc);
1038 }
1039
8cf5c917
JB		 1040 list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list,
1041 head) {
1042 plane->funcs->destroy(plane);
1043 }
59ce062e
SH		 1044
1045 idr_remove_all(&dev->mode_config.crtc_idr);
1046 idr_destroy(&dev->mode_config.crtc_idr);
f453ba04
DA		 1047}
1048EXPORT_SYMBOL(drm_mode_config_cleanup);
1049
f453ba04
DA		 1050/**
1051 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
1052 * @out: drm_mode_modeinfo struct to return to the user
1053 * @in: drm_display_mode to use
1054 *
1055 * LOCKING:
1056 * None.
1057 *
1058 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
1059 * the user.
1060 */
93bbf6db
VS		 1061static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
1062 const struct drm_display_mode *in)
f453ba04 1063{
e36fae38
VS		 1064 WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX ||
1065 in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX ||
1066 in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX ||
1067 in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX ||
1068 in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX,
1069 "timing values too large for mode info\n");
1070
f453ba04
DA		 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.
90367bf6
VS		 1099 *
1100 * RETURNS:
1101 * Zero on success, errno on failure.
f453ba04 1102 */
93bbf6db
VS		 1103static int drm_crtc_convert_umode(struct drm_display_mode *out,
1104 const struct drm_mode_modeinfo *in)
f453ba04 1105{
90367bf6
VS		 1106 if (in->clock > INT_MAX || in->vrefresh > INT_MAX)
1107 return -ERANGE;
1108
f453ba04
DA		 1109 out->clock = in->clock;
1110 out->hdisplay = in->hdisplay;
1111 out->hsync_start = in->hsync_start;
1112 out->hsync_end = in->hsync_end;
1113 out->htotal = in->htotal;
1114 out->hskew = in->hskew;
1115 out->vdisplay = in->vdisplay;
1116 out->vsync_start = in->vsync_start;
1117 out->vsync_end = in->vsync_end;
1118 out->vtotal = in->vtotal;
1119 out->vscan = in->vscan;
1120 out->vrefresh = in->vrefresh;
1121 out->flags = in->flags;
1122 out->type = in->type;
1123 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1124 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
90367bf6
VS		 1125
1126 return 0;
f453ba04
DA		 1127}
1128
1129/**
1130 * drm_mode_getresources - get graphics configuration
1131 * @inode: inode from the ioctl
1132 * @filp: file * from the ioctl
1133 * @cmd: cmd from ioctl
1134 * @arg: arg from ioctl
1135 *
1136 * LOCKING:
1137 * Takes mode config lock.
1138 *
1139 * Construct a set of configuration description structures and return
1140 * them to the user, including CRTC, connector and framebuffer configuration.
1141 *
1142 * Called by the user via ioctl.
1143 *
1144 * RETURNS:
1145 * Zero on success, errno on failure.
1146 */
1147int drm_mode_getresources(struct drm_device *dev, void *data,
1148 struct drm_file *file_priv)
1149{
1150 struct drm_mode_card_res *card_res = data;
1151 struct list_head *lh;
1152 struct drm_framebuffer *fb;
1153 struct drm_connector *connector;
1154 struct drm_crtc *crtc;
1155 struct drm_encoder *encoder;
1156 int ret = 0;
1157 int connector_count = 0;
1158 int crtc_count = 0;
1159 int fb_count = 0;
1160 int encoder_count = 0;
1161 int copied = 0, i;
1162 uint32_t __user *fb_id;
1163 uint32_t __user *crtc_id;
1164 uint32_t __user *connector_id;
1165 uint32_t __user *encoder_id;
1166 struct drm_mode_group *mode_group;
1167
fb3b06c8
DA		 1168 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1169 return -EINVAL;
1170
f453ba04
DA		 1171 mutex_lock(&dev->mode_config.mutex);
1172
1173 /*
1174 * For the non-control nodes we need to limit the list of resources
1175 * by IDs in the group list for this node
1176 */
1177 list_for_each(lh, &file_priv->fbs)
1178 fb_count++;
1179
1180 mode_group = &file_priv->master->minor->mode_group;
1181 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1182
1183 list_for_each(lh, &dev->mode_config.crtc_list)
1184 crtc_count++;
1185
1186 list_for_each(lh, &dev->mode_config.connector_list)
1187 connector_count++;
1188
1189 list_for_each(lh, &dev->mode_config.encoder_list)
1190 encoder_count++;
1191 } else {
1192
1193 crtc_count = mode_group->num_crtcs;
1194 connector_count = mode_group->num_connectors;
1195 encoder_count = mode_group->num_encoders;
1196 }
1197
1198 card_res->max_height = dev->mode_config.max_height;
1199 card_res->min_height = dev->mode_config.min_height;
1200 card_res->max_width = dev->mode_config.max_width;
1201 card_res->min_width = dev->mode_config.min_width;
1202
1203 /* handle this in 4 parts */
1204 /* FBs */
1205 if (card_res->count_fbs >= fb_count) {
1206 copied = 0;
1207 fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
618c75e4 1208 list_for_each_entry(fb, &file_priv->fbs, filp_head) {
f453ba04
DA		 1209 if (put_user(fb->base.id, fb_id + copied)) {
1210 ret = -EFAULT;
1211 goto out;
1212 }
1213 copied++;
1214 }
1215 }
1216 card_res->count_fbs = fb_count;
1217
1218 /* CRTCs */
1219 if (card_res->count_crtcs >= crtc_count) {
1220 copied = 0;
1221 crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
1222 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1223 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
1224 head) {
9440106b 1225 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
f453ba04
DA		 1226 if (put_user(crtc->base.id, crtc_id + copied)) {
1227 ret = -EFAULT;
1228 goto out;
1229 }
1230 copied++;
1231 }
1232 } else {
1233 for (i = 0; i < mode_group->num_crtcs; i++) {
1234 if (put_user(mode_group->id_list[i],
1235 crtc_id + copied)) {
1236 ret = -EFAULT;
1237 goto out;
1238 }
1239 copied++;
1240 }
1241 }
1242 }
1243 card_res->count_crtcs = crtc_count;
1244
1245 /* Encoders */
1246 if (card_res->count_encoders >= encoder_count) {
1247 copied = 0;
1248 encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
1249 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1250 list_for_each_entry(encoder,
1251 &dev->mode_config.encoder_list,
1252 head) {
9440106b
JG		 1253 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id,
1254 drm_get_encoder_name(encoder));
f453ba04
DA		 1255 if (put_user(encoder->base.id, encoder_id +
1256 copied)) {
1257 ret = -EFAULT;
1258 goto out;
1259 }
1260 copied++;
1261 }
1262 } else {
1263 for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
1264 if (put_user(mode_group->id_list[i],
1265 encoder_id + copied)) {
1266 ret = -EFAULT;
1267 goto out;
1268 }
1269 copied++;
1270 }
1271
1272 }
1273 }
1274 card_res->count_encoders = encoder_count;
1275
1276 /* Connectors */
1277 if (card_res->count_connectors >= connector_count) {
1278 copied = 0;
1279 connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
1280 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1281 list_for_each_entry(connector,
1282 &dev->mode_config.connector_list,
1283 head) {
9440106b
JG		 1284 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1285 connector->base.id,
1286 drm_get_connector_name(connector));
f453ba04
DA		 1287 if (put_user(connector->base.id,
1288 connector_id + copied)) {
1289 ret = -EFAULT;
1290 goto out;
1291 }
1292 copied++;
1293 }
1294 } else {
1295 int start = mode_group->num_crtcs +
1296 mode_group->num_encoders;
1297 for (i = start; i < start + mode_group->num_connectors; i++) {
1298 if (put_user(mode_group->id_list[i],
1299 connector_id + copied)) {
1300 ret = -EFAULT;
1301 goto out;
1302 }
1303 copied++;
1304 }
1305 }
1306 }
1307 card_res->count_connectors = connector_count;
1308
9440106b 1309 DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs,
f453ba04
DA		 1310 card_res->count_connectors, card_res->count_encoders);
1311
1312out:
1313 mutex_unlock(&dev->mode_config.mutex);
1314 return ret;
1315}
1316
1317/**
1318 * drm_mode_getcrtc - get CRTC configuration
1319 * @inode: inode from the ioctl
1320 * @filp: file * from the ioctl
1321 * @cmd: cmd from ioctl
1322 * @arg: arg from ioctl
1323 *
1324 * LOCKING:
b20f3867 1325 * Takes mode config lock.
f453ba04
DA		 1326 *
1327 * Construct a CRTC configuration structure to return to the user.
1328 *
1329 * Called by the user via ioctl.
1330 *
1331 * RETURNS:
1332 * Zero on success, errno on failure.
1333 */
1334int drm_mode_getcrtc(struct drm_device *dev,
1335 void *data, struct drm_file *file_priv)
1336{
1337 struct drm_mode_crtc *crtc_resp = data;
1338 struct drm_crtc *crtc;
1339 struct drm_mode_object *obj;
1340 int ret = 0;
1341
fb3b06c8
DA		 1342 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1343 return -EINVAL;
1344
f453ba04
DA		 1345 mutex_lock(&dev->mode_config.mutex);
1346
1347 obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
1348 DRM_MODE_OBJECT_CRTC);
1349 if (!obj) {
1350 ret = -EINVAL;
1351 goto out;
1352 }
1353 crtc = obj_to_crtc(obj);
1354
1355 crtc_resp->x = crtc->x;
1356 crtc_resp->y = crtc->y;
1357 crtc_resp->gamma_size = crtc->gamma_size;
1358 if (crtc->fb)
1359 crtc_resp->fb_id = crtc->fb->base.id;
1360 else
1361 crtc_resp->fb_id = 0;
1362
1363 if (crtc->enabled) {
1364
1365 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
1366 crtc_resp->mode_valid = 1;
1367
1368 } else {
1369 crtc_resp->mode_valid = 0;
1370 }
1371
1372out:
1373 mutex_unlock(&dev->mode_config.mutex);
1374 return ret;
1375}
1376
1377/**
1378 * drm_mode_getconnector - get connector configuration
1379 * @inode: inode from the ioctl
1380 * @filp: file * from the ioctl
1381 * @cmd: cmd from ioctl
1382 * @arg: arg from ioctl
1383 *
1384 * LOCKING:
b20f3867 1385 * Takes mode config lock.
f453ba04
DA		 1386 *
1387 * Construct a connector configuration structure to return to the user.
1388 *
1389 * Called by the user via ioctl.
1390 *
1391 * RETURNS:
1392 * Zero on success, errno on failure.
1393 */
1394int drm_mode_getconnector(struct drm_device *dev, void *data,
1395 struct drm_file *file_priv)
1396{
1397 struct drm_mode_get_connector *out_resp = data;
1398 struct drm_mode_object *obj;
1399 struct drm_connector *connector;
1400 struct drm_display_mode *mode;
1401 int mode_count = 0;
1402 int props_count = 0;
1403 int encoders_count = 0;
1404 int ret = 0;
1405 int copied = 0;
1406 int i;
1407 struct drm_mode_modeinfo u_mode;
1408 struct drm_mode_modeinfo __user *mode_ptr;
1409 uint32_t __user *prop_ptr;
1410 uint64_t __user *prop_values;
1411 uint32_t __user *encoder_ptr;
1412
fb3b06c8
DA		 1413 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1414 return -EINVAL;
1415
f453ba04
DA		 1416 memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
1417
9440106b 1418 DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id);
f453ba04
DA		 1419
1420 mutex_lock(&dev->mode_config.mutex);
1421
1422 obj = drm_mode_object_find(dev, out_resp->connector_id,
1423 DRM_MODE_OBJECT_CONNECTOR);
1424 if (!obj) {
1425 ret = -EINVAL;
1426 goto out;
1427 }
1428 connector = obj_to_connector(obj);
1429
7f88a9be 1430 props_count = connector->properties.count;
f453ba04
DA		 1431
1432 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1433 if (connector->encoder_ids[i] != 0) {
1434 encoders_count++;
1435 }
1436 }
1437
1438 if (out_resp->count_modes == 0) {
1439 connector->funcs->fill_modes(connector,
1440 dev->mode_config.max_width,
1441 dev->mode_config.max_height);
1442 }
1443
1444 /* delayed so we get modes regardless of pre-fill_modes state */
1445 list_for_each_entry(mode, &connector->modes, head)
1446 mode_count++;
1447
1448 out_resp->connector_id = connector->base.id;
1449 out_resp->connector_type = connector->connector_type;
1450 out_resp->connector_type_id = connector->connector_type_id;
1451 out_resp->mm_width = connector->display_info.width_mm;
1452 out_resp->mm_height = connector->display_info.height_mm;
1453 out_resp->subpixel = connector->display_info.subpixel_order;
1454 out_resp->connection = connector->status;
1455 if (connector->encoder)
1456 out_resp->encoder_id = connector->encoder->base.id;
1457 else
1458 out_resp->encoder_id = 0;
1459
1460 /*
1461 * This ioctl is called twice, once to determine how much space is
1462 * needed, and the 2nd time to fill it.
1463 */
1464 if ((out_resp->count_modes >= mode_count) && mode_count) {
1465 copied = 0;
81f6c7f8 1466 mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr;
f453ba04
DA		 1467 list_for_each_entry(mode, &connector->modes, head) {
1468 drm_crtc_convert_to_umode(&u_mode, mode);
1469 if (copy_to_user(mode_ptr + copied,
1470 &u_mode, sizeof(u_mode))) {
1471 ret = -EFAULT;
1472 goto out;
1473 }
1474 copied++;
1475 }
1476 }
1477 out_resp->count_modes = mode_count;
1478
1479 if ((out_resp->count_props >= props_count) && props_count) {
1480 copied = 0;
81f6c7f8
VS		 1481 prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr);
1482 prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr);
7f88a9be
PZ		 1483 for (i = 0; i < connector->properties.count; i++) {
1484 if (put_user(connector->properties.ids[i],
1485 prop_ptr + copied)) {
1486 ret = -EFAULT;
1487 goto out;
1488 }
f453ba04 1489
7f88a9be
PZ		 1490 if (put_user(connector->properties.values[i],
1491 prop_values + copied)) {
1492 ret = -EFAULT;
1493 goto out;
f453ba04 1494 }
7f88a9be 1495 copied++;
f453ba04
DA		 1496 }
1497 }
1498 out_resp->count_props = props_count;
1499
1500 if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
1501 copied = 0;
81f6c7f8 1502 encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr);
f453ba04
DA		 1503 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1504 if (connector->encoder_ids[i] != 0) {
1505 if (put_user(connector->encoder_ids[i],
1506 encoder_ptr + copied)) {
1507 ret = -EFAULT;
1508 goto out;
1509 }
1510 copied++;
1511 }
1512 }
1513 }
1514 out_resp->count_encoders = encoders_count;
1515
1516out:
1517 mutex_unlock(&dev->mode_config.mutex);
1518 return ret;
1519}
1520
1521int drm_mode_getencoder(struct drm_device *dev, void *data,
1522 struct drm_file *file_priv)
1523{
1524 struct drm_mode_get_encoder *enc_resp = data;
1525 struct drm_mode_object *obj;
1526 struct drm_encoder *encoder;
1527 int ret = 0;
1528
fb3b06c8
DA		 1529 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1530 return -EINVAL;
1531
f453ba04
DA		 1532 mutex_lock(&dev->mode_config.mutex);
1533 obj = drm_mode_object_find(dev, enc_resp->encoder_id,
1534 DRM_MODE_OBJECT_ENCODER);
1535 if (!obj) {
1536 ret = -EINVAL;
1537 goto out;
1538 }
1539 encoder = obj_to_encoder(obj);
1540
1541 if (encoder->crtc)
1542 enc_resp->crtc_id = encoder->crtc->base.id;
1543 else
1544 enc_resp->crtc_id = 0;
1545 enc_resp->encoder_type = encoder->encoder_type;
1546 enc_resp->encoder_id = encoder->base.id;
1547 enc_resp->possible_crtcs = encoder->possible_crtcs;
1548 enc_resp->possible_clones = encoder->possible_clones;
1549
1550out:
1551 mutex_unlock(&dev->mode_config.mutex);
1552 return ret;
1553}
1554
8cf5c917
JB		 1555/**
1556 * drm_mode_getplane_res - get plane info
1557 * @dev: DRM device
1558 * @data: ioctl data
1559 * @file_priv: DRM file info
1560 *
b20f3867
SH		 1561 * LOCKING:
1562 * Takes mode config lock.
1563 *
8cf5c917
JB		 1564 * Return an plane count and set of IDs.
1565 */
1566int drm_mode_getplane_res(struct drm_device *dev, void *data,
1567 struct drm_file *file_priv)
1568{
1569 struct drm_mode_get_plane_res *plane_resp = data;
1570 struct drm_mode_config *config;
1571 struct drm_plane *plane;
1572 uint32_t __user *plane_ptr;
1573 int copied = 0, ret = 0;
1574
1575 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1576 return -EINVAL;
1577
1578 mutex_lock(&dev->mode_config.mutex);
1579 config = &dev->mode_config;
1580
1581 /*
1582 * This ioctl is called twice, once to determine how much space is
1583 * needed, and the 2nd time to fill it.
1584 */
1585 if (config->num_plane &&
1586 (plane_resp->count_planes >= config->num_plane)) {
81f6c7f8 1587 plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr;
8cf5c917
JB		 1588
1589 list_for_each_entry(plane, &config->plane_list, head) {
1590 if (put_user(plane->base.id, plane_ptr + copied)) {
1591 ret = -EFAULT;
1592 goto out;
1593 }
1594 copied++;
1595 }
1596 }
1597 plane_resp->count_planes = config->num_plane;
1598
1599out:
1600 mutex_unlock(&dev->mode_config.mutex);
1601 return ret;
1602}
1603
1604/**
1605 * drm_mode_getplane - get plane info
1606 * @dev: DRM device
1607 * @data: ioctl data
1608 * @file_priv: DRM file info
1609 *
b20f3867
SH		 1610 * LOCKING:
1611 * Takes mode config lock.
1612 *
8cf5c917
JB		 1613 * Return plane info, including formats supported, gamma size, any
1614 * current fb, etc.
1615 */
1616int drm_mode_getplane(struct drm_device *dev, void *data,
1617 struct drm_file *file_priv)
1618{
1619 struct drm_mode_get_plane *plane_resp = data;
1620 struct drm_mode_object *obj;
1621 struct drm_plane *plane;
1622 uint32_t __user *format_ptr;
1623 int ret = 0;
1624
1625 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1626 return -EINVAL;
1627
1628 mutex_lock(&dev->mode_config.mutex);
1629 obj = drm_mode_object_find(dev, plane_resp->plane_id,
1630 DRM_MODE_OBJECT_PLANE);
1631 if (!obj) {
1632 ret = -ENOENT;
1633 goto out;
1634 }
1635 plane = obj_to_plane(obj);
1636
1637 if (plane->crtc)
1638 plane_resp->crtc_id = plane->crtc->base.id;
1639 else
1640 plane_resp->crtc_id = 0;
1641
1642 if (plane->fb)
1643 plane_resp->fb_id = plane->fb->base.id;
1644 else
1645 plane_resp->fb_id = 0;
1646
1647 plane_resp->plane_id = plane->base.id;
1648 plane_resp->possible_crtcs = plane->possible_crtcs;
1649 plane_resp->gamma_size = plane->gamma_size;
1650
1651 /*
1652 * This ioctl is called twice, once to determine how much space is
1653 * needed, and the 2nd time to fill it.
1654 */
1655 if (plane->format_count &&
1656 (plane_resp->count_format_types >= plane->format_count)) {
81f6c7f8 1657 format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr;
8cf5c917
JB		 1658 if (copy_to_user(format_ptr,
1659 plane->format_types,
1660 sizeof(uint32_t) * plane->format_count)) {
1661 ret = -EFAULT;
1662 goto out;
1663 }
1664 }
1665 plane_resp->count_format_types = plane->format_count;
1666
1667out:
1668 mutex_unlock(&dev->mode_config.mutex);
1669 return ret;
1670}
1671
1672/**
1673 * drm_mode_setplane - set up or tear down an plane
1674 * @dev: DRM device
1675 * @data: ioctl data*
1676 * @file_prive: DRM file info
1677 *
b20f3867
SH		 1678 * LOCKING:
1679 * Takes mode config lock.
1680 *
8cf5c917
JB		 1681 * Set plane info, including placement, fb, scaling, and other factors.
1682 * Or pass a NULL fb to disable.
1683 */
1684int drm_mode_setplane(struct drm_device *dev, void *data,
1685 struct drm_file *file_priv)
1686{
1687 struct drm_mode_set_plane *plane_req = data;
1688 struct drm_mode_object *obj;
1689 struct drm_plane *plane;
1690 struct drm_crtc *crtc;
1691 struct drm_framebuffer *fb;
1692 int ret = 0;
42ef8789 1693 unsigned int fb_width, fb_height;
62443be6 1694 int i;
8cf5c917
JB		 1695
1696 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1697 return -EINVAL;
1698
1699 mutex_lock(&dev->mode_config.mutex);
1700
1701 /*
1702 * First, find the plane, crtc, and fb objects. If not available,
1703 * we don't bother to call the driver.
1704 */
1705 obj = drm_mode_object_find(dev, plane_req->plane_id,
1706 DRM_MODE_OBJECT_PLANE);
1707 if (!obj) {
1708 DRM_DEBUG_KMS("Unknown plane ID %d\n",
1709 plane_req->plane_id);
1710 ret = -ENOENT;
1711 goto out;
1712 }
1713 plane = obj_to_plane(obj);
1714
1715 /* No fb means shut it down */
1716 if (!plane_req->fb_id) {
1717 plane->funcs->disable_plane(plane);
e5e3b44c
VS		 1718 plane->crtc = NULL;
1719 plane->fb = NULL;
8cf5c917
JB		 1720 goto out;
1721 }
1722
1723 obj = drm_mode_object_find(dev, plane_req->crtc_id,
1724 DRM_MODE_OBJECT_CRTC);
1725 if (!obj) {
1726 DRM_DEBUG_KMS("Unknown crtc ID %d\n",
1727 plane_req->crtc_id);
1728 ret = -ENOENT;
1729 goto out;
1730 }
1731 crtc = obj_to_crtc(obj);
1732
1733 obj = drm_mode_object_find(dev, plane_req->fb_id,
1734 DRM_MODE_OBJECT_FB);
1735 if (!obj) {
1736 DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
1737 plane_req->fb_id);
1738 ret = -ENOENT;
1739 goto out;
1740 }
1741 fb = obj_to_fb(obj);
1742
62443be6
VS		 1743 /* Check whether this plane supports the fb pixel format. */
1744 for (i = 0; i < plane->format_count; i++)
1745 if (fb->pixel_format == plane->format_types[i])
1746 break;
1747 if (i == plane->format_count) {
1748 DRM_DEBUG_KMS("Invalid pixel format 0x%08x\n", fb->pixel_format);
1749 ret = -EINVAL;
1750 goto out;
1751 }
1752
42ef8789
VS		 1753 fb_width = fb->width << 16;
1754 fb_height = fb->height << 16;
1755
1756 /* Make sure source coordinates are inside the fb. */
1757 if (plane_req->src_w > fb_width ||
1758 plane_req->src_x > fb_width - plane_req->src_w ||
1759 plane_req->src_h > fb_height ||
1760 plane_req->src_y > fb_height - plane_req->src_h) {
1761 DRM_DEBUG_KMS("Invalid source coordinates "
1762 "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n",
1763 plane_req->src_w >> 16,
1764 ((plane_req->src_w & 0xffff) * 15625) >> 10,
1765 plane_req->src_h >> 16,
1766 ((plane_req->src_h & 0xffff) * 15625) >> 10,
1767 plane_req->src_x >> 16,
1768 ((plane_req->src_x & 0xffff) * 15625) >> 10,
1769 plane_req->src_y >> 16,
1770 ((plane_req->src_y & 0xffff) * 15625) >> 10);
1771 ret = -ENOSPC;
1772 goto out;
1773 }
1774
687a0400
VS		 1775 /* Give drivers some help against integer overflows */
1776 if (plane_req->crtc_w > INT_MAX ||
1777 plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w ||
1778 plane_req->crtc_h > INT_MAX ||
1779 plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) {
1780 DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
1781 plane_req->crtc_w, plane_req->crtc_h,
1782 plane_req->crtc_x, plane_req->crtc_y);
1783 ret = -ERANGE;
1784 goto out;
1785 }
1786
8cf5c917
JB		 1787 ret = plane->funcs->update_plane(plane, crtc, fb,
1788 plane_req->crtc_x, plane_req->crtc_y,
1789 plane_req->crtc_w, plane_req->crtc_h,
1790 plane_req->src_x, plane_req->src_y,
1791 plane_req->src_w, plane_req->src_h);
1792 if (!ret) {
1793 plane->crtc = crtc;
1794 plane->fb = fb;
1795 }
1796
1797out:
1798 mutex_unlock(&dev->mode_config.mutex);
1799
1800 return ret;
1801}
1802
f453ba04
DA		 1803/**
1804 * drm_mode_setcrtc - set CRTC configuration
1805 * @inode: inode from the ioctl
1806 * @filp: file * from the ioctl
1807 * @cmd: cmd from ioctl
1808 * @arg: arg from ioctl
1809 *
1810 * LOCKING:
b20f3867 1811 * Takes mode config lock.
f453ba04
DA		 1812 *
1813 * Build a new CRTC configuration based on user request.
1814 *
1815 * Called by the user via ioctl.
1816 *
1817 * RETURNS:
1818 * Zero on success, errno on failure.
1819 */
1820int drm_mode_setcrtc(struct drm_device *dev, void *data,
1821 struct drm_file *file_priv)
1822{
1823 struct drm_mode_config *config = &dev->mode_config;
1824 struct drm_mode_crtc *crtc_req = data;
1825 struct drm_mode_object *obj;
6653cc8d 1826 struct drm_crtc *crtc;
f453ba04
DA		 1827 struct drm_connector **connector_set = NULL, *connector;
1828 struct drm_framebuffer *fb = NULL;
1829 struct drm_display_mode *mode = NULL;
1830 struct drm_mode_set set;
1831 uint32_t __user *set_connectors_ptr;
4a1b0714 1832 int ret;
f453ba04
DA		 1833 int i;
1834
fb3b06c8
DA		 1835 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1836 return -EINVAL;
1837
1d97e915
VS		 1838 /* For some reason crtc x/y offsets are signed internally. */
1839 if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX)
1840 return -ERANGE;
1841
f453ba04
DA		 1842 mutex_lock(&dev->mode_config.mutex);
1843 obj = drm_mode_object_find(dev, crtc_req->crtc_id,
1844 DRM_MODE_OBJECT_CRTC);
1845 if (!obj) {
58367ed6 1846 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
f453ba04
DA		 1847 ret = -EINVAL;
1848 goto out;
1849 }
1850 crtc = obj_to_crtc(obj);
9440106b 1851 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
f453ba04
DA		 1852
1853 if (crtc_req->mode_valid) {
1854 /* If we have a mode we need a framebuffer. */
1855 /* If we pass -1, set the mode with the currently bound fb */
1856 if (crtc_req->fb_id == -1) {
6653cc8d
VS		 1857 if (!crtc->fb) {
1858 DRM_DEBUG_KMS("CRTC doesn't have current FB\n");
1859 ret = -EINVAL;
1860 goto out;
f453ba04 1861 }
6653cc8d 1862 fb = crtc->fb;
f453ba04
DA		 1863 } else {
1864 obj = drm_mode_object_find(dev, crtc_req->fb_id,
1865 DRM_MODE_OBJECT_FB);
1866 if (!obj) {
58367ed6
ZY		 1867 DRM_DEBUG_KMS("Unknown FB ID%d\n",
1868 crtc_req->fb_id);
f453ba04
DA		 1869 ret = -EINVAL;
1870 goto out;
1871 }
1872 fb = obj_to_fb(obj);
1873 }
1874
1875 mode = drm_mode_create(dev);
ee34ab5b
VS		 1876 if (!mode) {
1877 ret = -ENOMEM;
1878 goto out;
1879 }
1880
90367bf6
VS		 1881 ret = drm_crtc_convert_umode(mode, &crtc_req->mode);
1882 if (ret) {
1883 DRM_DEBUG_KMS("Invalid mode\n");
1884 goto out;
1885 }
1886
f453ba04 1887 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
5f61bb42
VS		 1888
1889 if (mode->hdisplay > fb->width ||
1890 mode->vdisplay > fb->height ||
1891 crtc_req->x > fb->width - mode->hdisplay ||
1892 crtc_req->y > fb->height - mode->vdisplay) {
1893 DRM_DEBUG_KMS("Invalid CRTC viewport %ux%u+%u+%u for fb size %ux%u.\n",
1894 mode->hdisplay, mode->vdisplay,
1895 crtc_req->x, crtc_req->y,
1896 fb->width, fb->height);
1897 ret = -ENOSPC;
1898 goto out;
1899 }
f453ba04
DA		 1900 }
1901
1902 if (crtc_req->count_connectors == 0 && mode) {
58367ed6 1903 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
f453ba04
DA		 1904 ret = -EINVAL;
1905 goto out;
1906 }
1907
7781de74 1908 if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
58367ed6 1909 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
f453ba04
DA		 1910 crtc_req->count_connectors);
1911 ret = -EINVAL;
1912 goto out;
1913 }
1914
1915 if (crtc_req->count_connectors > 0) {
1916 u32 out_id;
1917
1918 /* Avoid unbounded kernel memory allocation */
1919 if (crtc_req->count_connectors > config->num_connector) {
1920 ret = -EINVAL;
1921 goto out;
1922 }
1923
1924 connector_set = kmalloc(crtc_req->count_connectors *
1925 sizeof(struct drm_connector *),
1926 GFP_KERNEL);
1927 if (!connector_set) {
1928 ret = -ENOMEM;
1929 goto out;
1930 }
1931
1932 for (i = 0; i < crtc_req->count_connectors; i++) {
81f6c7f8 1933 set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr;
f453ba04
DA		 1934 if (get_user(out_id, &set_connectors_ptr[i])) {
1935 ret = -EFAULT;
1936 goto out;
1937 }
1938
1939 obj = drm_mode_object_find(dev, out_id,
1940 DRM_MODE_OBJECT_CONNECTOR);
1941 if (!obj) {
58367ed6
ZY		 1942 DRM_DEBUG_KMS("Connector id %d unknown\n",
1943 out_id);
f453ba04
DA		 1944 ret = -EINVAL;
1945 goto out;
1946 }
1947 connector = obj_to_connector(obj);
9440106b
JG		 1948 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1949 connector->base.id,
1950 drm_get_connector_name(connector));
f453ba04
DA		 1951
1952 connector_set[i] = connector;
1953 }
1954 }
1955
1956 set.crtc = crtc;
1957 set.x = crtc_req->x;
1958 set.y = crtc_req->y;
1959 set.mode = mode;
1960 set.connectors = connector_set;
1961 set.num_connectors = crtc_req->count_connectors;
5ef5f72f 1962 set.fb = fb;
f453ba04
DA		 1963 ret = crtc->funcs->set_config(&set);
1964
1965out:
1966 kfree(connector_set);
ee34ab5b 1967 drm_mode_destroy(dev, mode);
f453ba04
DA		 1968 mutex_unlock(&dev->mode_config.mutex);
1969 return ret;
1970}
1971
1972int drm_mode_cursor_ioctl(struct drm_device *dev,
1973 void *data, struct drm_file *file_priv)
1974{
1975 struct drm_mode_cursor *req = data;
1976 struct drm_mode_object *obj;
1977 struct drm_crtc *crtc;
1978 int ret = 0;
1979
fb3b06c8
DA		 1980 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1981 return -EINVAL;
1982
7c4eaca4 1983 if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags))
f453ba04 1984 return -EINVAL;
f453ba04
DA		 1985
1986 mutex_lock(&dev->mode_config.mutex);
e0c8463a 1987 obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
f453ba04 1988 if (!obj) {
58367ed6 1989 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
f453ba04
DA		 1990 ret = -EINVAL;
1991 goto out;
1992 }
1993 crtc = obj_to_crtc(obj);
1994
1995 if (req->flags & DRM_MODE_CURSOR_BO) {
1996 if (!crtc->funcs->cursor_set) {
f453ba04
DA		 1997 ret = -ENXIO;
1998 goto out;
1999 }
2000 /* Turns off the cursor if handle is 0 */
2001 ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
2002 req->width, req->height);
2003 }
2004
2005 if (req->flags & DRM_MODE_CURSOR_MOVE) {
2006 if (crtc->funcs->cursor_move) {
2007 ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
2008 } else {
f453ba04
DA		 2009 ret = -EFAULT;
2010 goto out;
2011 }
2012 }
2013out:
2014 mutex_unlock(&dev->mode_config.mutex);
2015 return ret;
2016}
2017
308e5bcb
JB		 2018/* Original addfb only supported RGB formats, so figure out which one */
2019uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth)
2020{
2021 uint32_t fmt;
2022
2023 switch (bpp) {
2024 case 8:
04b3924d 2025 fmt = DRM_FORMAT_RGB332;
308e5bcb
JB		 2026 break;
2027 case 16:
2028 if (depth == 15)
04b3924d 2029 fmt = DRM_FORMAT_XRGB1555;
308e5bcb 2030 else
04b3924d 2031 fmt = DRM_FORMAT_RGB565;
308e5bcb
JB		 2032 break;
2033 case 24:
04b3924d 2034 fmt = DRM_FORMAT_RGB888;
308e5bcb
JB		 2035 break;
2036 case 32:
2037 if (depth == 24)
04b3924d 2038 fmt = DRM_FORMAT_XRGB8888;
308e5bcb 2039 else if (depth == 30)
04b3924d 2040 fmt = DRM_FORMAT_XRGB2101010;
308e5bcb 2041 else
04b3924d 2042 fmt = DRM_FORMAT_ARGB8888;
308e5bcb
JB		 2043 break;
2044 default:
04b3924d
VS		 2045 DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n");
2046 fmt = DRM_FORMAT_XRGB8888;
308e5bcb
JB		 2047 break;
2048 }
2049
2050 return fmt;
2051}
2052EXPORT_SYMBOL(drm_mode_legacy_fb_format);
2053
f453ba04
DA		 2054/**
2055 * drm_mode_addfb - add an FB to the graphics configuration
2056 * @inode: inode from the ioctl
2057 * @filp: file * from the ioctl
2058 * @cmd: cmd from ioctl
2059 * @arg: arg from ioctl
2060 *
2061 * LOCKING:
2062 * Takes mode config lock.
2063 *
2064 * Add a new FB to the specified CRTC, given a user request.
2065 *
2066 * Called by the user via ioctl.
2067 *
2068 * RETURNS:
2069 * Zero on success, errno on failure.
2070 */
2071int drm_mode_addfb(struct drm_device *dev,
2072 void *data, struct drm_file *file_priv)
2073{
308e5bcb
JB		 2074 struct drm_mode_fb_cmd *or = data;
2075 struct drm_mode_fb_cmd2 r = {};
2076 struct drm_mode_config *config = &dev->mode_config;
2077 struct drm_framebuffer *fb;
2078 int ret = 0;
2079
2080 /* Use new struct with format internally */
2081 r.fb_id = or->fb_id;
2082 r.width = or->width;
2083 r.height = or->height;
2084 r.pitches[0] = or->pitch;
2085 r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth);
2086 r.handles[0] = or->handle;
2087
2088 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2089 return -EINVAL;
2090
acb4b992 2091 if ((config->min_width > r.width) || (r.width > config->max_width))
308e5bcb 2092 return -EINVAL;
acb4b992
JB		 2093
2094 if ((config->min_height > r.height) || (r.height > config->max_height))
308e5bcb 2095 return -EINVAL;
308e5bcb
JB		 2096
2097 mutex_lock(&dev->mode_config.mutex);
2098
2099 /* TODO check buffer is sufficiently large */
2100 /* TODO setup destructor callback */
2101
2102 fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r);
2103 if (IS_ERR(fb)) {
1aa1b11c 2104 DRM_DEBUG_KMS("could not create framebuffer\n");
308e5bcb
JB		 2105 ret = PTR_ERR(fb);
2106 goto out;
2107 }
2108
2109 or->fb_id = fb->base.id;
2110 list_add(&fb->filp_head, &file_priv->fbs);
2111 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
2112
2113out:
2114 mutex_unlock(&dev->mode_config.mutex);
2115 return ret;
2116}
2117
cff91b62 2118static int format_check(const struct drm_mode_fb_cmd2 *r)
935b5977
VS		 2119{
2120 uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN;
2121
2122 switch (format) {
2123 case DRM_FORMAT_C8:
2124 case DRM_FORMAT_RGB332:
2125 case DRM_FORMAT_BGR233:
2126 case DRM_FORMAT_XRGB4444:
2127 case DRM_FORMAT_XBGR4444:
2128 case DRM_FORMAT_RGBX4444:
2129 case DRM_FORMAT_BGRX4444:
2130 case DRM_FORMAT_ARGB4444:
2131 case DRM_FORMAT_ABGR4444:
2132 case DRM_FORMAT_RGBA4444:
2133 case DRM_FORMAT_BGRA4444:
2134 case DRM_FORMAT_XRGB1555:
2135 case DRM_FORMAT_XBGR1555:
2136 case DRM_FORMAT_RGBX5551:
2137 case DRM_FORMAT_BGRX5551:
2138 case DRM_FORMAT_ARGB1555:
2139 case DRM_FORMAT_ABGR1555:
2140 case DRM_FORMAT_RGBA5551:
2141 case DRM_FORMAT_BGRA5551:
2142 case DRM_FORMAT_RGB565:
2143 case DRM_FORMAT_BGR565:
2144 case DRM_FORMAT_RGB888:
2145 case DRM_FORMAT_BGR888:
2146 case DRM_FORMAT_XRGB8888:
2147 case DRM_FORMAT_XBGR8888:
2148 case DRM_FORMAT_RGBX8888:
2149 case DRM_FORMAT_BGRX8888:
2150 case DRM_FORMAT_ARGB8888:
2151 case DRM_FORMAT_ABGR8888:
2152 case DRM_FORMAT_RGBA8888:
2153 case DRM_FORMAT_BGRA8888:
2154 case DRM_FORMAT_XRGB2101010:
2155 case DRM_FORMAT_XBGR2101010:
2156 case DRM_FORMAT_RGBX1010102:
2157 case DRM_FORMAT_BGRX1010102:
2158 case DRM_FORMAT_ARGB2101010:
2159 case DRM_FORMAT_ABGR2101010:
2160 case DRM_FORMAT_RGBA1010102:
2161 case DRM_FORMAT_BGRA1010102:
2162 case DRM_FORMAT_YUYV:
2163 case DRM_FORMAT_YVYU:
2164 case DRM_FORMAT_UYVY:
2165 case DRM_FORMAT_VYUY:
2166 case DRM_FORMAT_AYUV:
2167 case DRM_FORMAT_NV12:
2168 case DRM_FORMAT_NV21:
2169 case DRM_FORMAT_NV16:
2170 case DRM_FORMAT_NV61:
2171 case DRM_FORMAT_YUV410:
2172 case DRM_FORMAT_YVU410:
2173 case DRM_FORMAT_YUV411:
2174 case DRM_FORMAT_YVU411:
2175 case DRM_FORMAT_YUV420:
2176 case DRM_FORMAT_YVU420:
2177 case DRM_FORMAT_YUV422:
2178 case DRM_FORMAT_YVU422:
2179 case DRM_FORMAT_YUV444:
2180 case DRM_FORMAT_YVU444:
2181 return 0;
2182 default:
2183 return -EINVAL;
2184 }
2185}
2186
cff91b62 2187static int framebuffer_check(const struct drm_mode_fb_cmd2 *r)
d1b45d5f
VS		 2188{
2189 int ret, hsub, vsub, num_planes, i;
2190
2191 ret = format_check(r);
2192 if (ret) {
1aa1b11c 2193 DRM_DEBUG_KMS("bad framebuffer format 0x%08x\n", r->pixel_format);
d1b45d5f
VS		 2194 return ret;
2195 }
2196
2197 hsub = drm_format_horz_chroma_subsampling(r->pixel_format);
2198 vsub = drm_format_vert_chroma_subsampling(r->pixel_format);
2199 num_planes = drm_format_num_planes(r->pixel_format);
2200
2201 if (r->width == 0 || r->width % hsub) {
1aa1b11c 2202 DRM_DEBUG_KMS("bad framebuffer width %u\n", r->height);
d1b45d5f
VS		 2203 return -EINVAL;
2204 }
2205
2206 if (r->height == 0 || r->height % vsub) {
1aa1b11c 2207 DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height);
d1b45d5f
VS		 2208 return -EINVAL;
2209 }
2210
2211 for (i = 0; i < num_planes; i++) {
2212 unsigned int width = r->width / (i != 0 ? hsub : 1);
2213
2214 if (!r->handles[i]) {
1aa1b11c 2215 DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i);
d1b45d5f
VS		 2216 return -EINVAL;
2217 }
2218
2219 if (r->pitches[i] < drm_format_plane_cpp(r->pixel_format, i) * width) {
1aa1b11c 2220 DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i);
d1b45d5f
VS		 2221 return -EINVAL;
2222 }
2223 }
2224
2225 return 0;
2226}
2227
308e5bcb
JB		 2228/**
2229 * drm_mode_addfb2 - add an FB to the graphics configuration
2230 * @inode: inode from the ioctl
2231 * @filp: file * from the ioctl
2232 * @cmd: cmd from ioctl
2233 * @arg: arg from ioctl
2234 *
2235 * LOCKING:
2236 * Takes mode config lock.
2237 *
2238 * Add a new FB to the specified CRTC, given a user request with format.
2239 *
2240 * Called by the user via ioctl.
2241 *
2242 * RETURNS:
2243 * Zero on success, errno on failure.
2244 */
2245int drm_mode_addfb2(struct drm_device *dev,
2246 void *data, struct drm_file *file_priv)
2247{
2248 struct drm_mode_fb_cmd2 *r = data;
f453ba04
DA		 2249 struct drm_mode_config *config = &dev->mode_config;
2250 struct drm_framebuffer *fb;
4a1b0714 2251 int ret;
f453ba04 2252
fb3b06c8
DA		 2253 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2254 return -EINVAL;
2255
f453ba04 2256 if ((config->min_width > r->width) || (r->width > config->max_width)) {
1aa1b11c 2257 DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n",
8cf5c917 2258 r->width, config->min_width, config->max_width);
f453ba04
DA		 2259 return -EINVAL;
2260 }
2261 if ((config->min_height > r->height) || (r->height > config->max_height)) {
1aa1b11c 2262 DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n",
8cf5c917 2263 r->height, config->min_height, config->max_height);
f453ba04
DA		 2264 return -EINVAL;
2265 }
2266
d1b45d5f
VS		 2267 ret = framebuffer_check(r);
2268 if (ret)
935b5977 2269 return ret;
935b5977 2270
f453ba04
DA		 2271 mutex_lock(&dev->mode_config.mutex);
2272
f453ba04 2273 fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
cce13ff7 2274 if (IS_ERR(fb)) {
1aa1b11c 2275 DRM_DEBUG_KMS("could not create framebuffer\n");
cce13ff7 2276 ret = PTR_ERR(fb);
f453ba04
DA		 2277 goto out;
2278 }
2279
e0c8463a 2280 r->fb_id = fb->base.id;
f453ba04 2281 list_add(&fb->filp_head, &file_priv->fbs);
9440106b 2282 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
f453ba04
DA		 2283
2284out:
2285 mutex_unlock(&dev->mode_config.mutex);
2286 return ret;
2287}
2288
2289/**
2290 * drm_mode_rmfb - remove an FB from the configuration
2291 * @inode: inode from the ioctl
2292 * @filp: file * from the ioctl
2293 * @cmd: cmd from ioctl
2294 * @arg: arg from ioctl
2295 *
2296 * LOCKING:
2297 * Takes mode config lock.
2298 *
2299 * Remove the FB specified by the user.
2300 *
2301 * Called by the user via ioctl.
2302 *
2303 * RETURNS:
2304 * Zero on success, errno on failure.
2305 */
2306int drm_mode_rmfb(struct drm_device *dev,
2307 void *data, struct drm_file *file_priv)
2308{
2309 struct drm_mode_object *obj;
2310 struct drm_framebuffer *fb = NULL;
2311 struct drm_framebuffer *fbl = NULL;
2312 uint32_t *id = data;
2313 int ret = 0;
2314 int found = 0;
2315
fb3b06c8
DA		 2316 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2317 return -EINVAL;
2318
f453ba04
DA		 2319 mutex_lock(&dev->mode_config.mutex);
2320 obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB);
25985edc 2321 /* TODO check that we really get a framebuffer back. */
f453ba04 2322 if (!obj) {
f453ba04
DA		 2323 ret = -EINVAL;
2324 goto out;
2325 }
2326 fb = obj_to_fb(obj);
2327
2328 list_for_each_entry(fbl, &file_priv->fbs, filp_head)
2329 if (fb == fbl)
2330 found = 1;
2331
2332 if (!found) {
f453ba04
DA		 2333 ret = -EINVAL;
2334 goto out;
2335 }
2336
2337 /* TODO release all crtc connected to the framebuffer */
2338 /* TODO unhock the destructor from the buffer object */
2339
2340 list_del(&fb->filp_head);
2341 fb->funcs->destroy(fb);
2342
2343out:
2344 mutex_unlock(&dev->mode_config.mutex);
2345 return ret;
2346}
2347
2348/**
2349 * drm_mode_getfb - get FB info
2350 * @inode: inode from the ioctl
2351 * @filp: file * from the ioctl
2352 * @cmd: cmd from ioctl
2353 * @arg: arg from ioctl
2354 *
2355 * LOCKING:
b20f3867 2356 * Takes mode config lock.
f453ba04
DA		 2357 *
2358 * Lookup the FB given its ID and return info about it.
2359 *
2360 * Called by the user via ioctl.
2361 *
2362 * RETURNS:
2363 * Zero on success, errno on failure.
2364 */
2365int drm_mode_getfb(struct drm_device *dev,
2366 void *data, struct drm_file *file_priv)
2367{
2368 struct drm_mode_fb_cmd *r = data;
2369 struct drm_mode_object *obj;
2370 struct drm_framebuffer *fb;
2371 int ret = 0;
2372
fb3b06c8
DA		 2373 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2374 return -EINVAL;
2375
f453ba04 2376 mutex_lock(&dev->mode_config.mutex);
e0c8463a 2377 obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
f453ba04 2378 if (!obj) {
f453ba04
DA		 2379 ret = -EINVAL;
2380 goto out;
2381 }
2382 fb = obj_to_fb(obj);
2383
2384 r->height = fb->height;
2385 r->width = fb->width;
2386 r->depth = fb->depth;
2387 r->bpp = fb->bits_per_pixel;
01f2c773 2388 r->pitch = fb->pitches[0];
f453ba04
DA		 2389 fb->funcs->create_handle(fb, file_priv, &r->handle);
2390
2391out:
2392 mutex_unlock(&dev->mode_config.mutex);
2393 return ret;
2394}
2395
884840aa
JB		 2396int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
2397 void *data, struct drm_file *file_priv)
2398{
2399 struct drm_clip_rect __user *clips_ptr;
2400 struct drm_clip_rect *clips = NULL;
2401 struct drm_mode_fb_dirty_cmd *r = data;
2402 struct drm_mode_object *obj;
2403 struct drm_framebuffer *fb;
2404 unsigned flags;
2405 int num_clips;
4a1b0714 2406 int ret;
884840aa 2407
fb3b06c8
DA		 2408 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2409 return -EINVAL;
2410
884840aa
JB		 2411 mutex_lock(&dev->mode_config.mutex);
2412 obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
2413 if (!obj) {
884840aa
JB		 2414 ret = -EINVAL;
2415 goto out_err1;
2416 }
2417 fb = obj_to_fb(obj);
2418
2419 num_clips = r->num_clips;
81f6c7f8 2420 clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr;
884840aa
JB		 2421
2422 if (!num_clips != !clips_ptr) {
2423 ret = -EINVAL;
2424 goto out_err1;
2425 }
2426
2427 flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
2428
2429 /* If userspace annotates copy, clips must come in pairs */
2430 if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
2431 ret = -EINVAL;
2432 goto out_err1;
2433 }
2434
2435 if (num_clips && clips_ptr) {
a5cd3351
XW		 2436 if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) {
2437 ret = -EINVAL;
2438 goto out_err1;
2439 }
884840aa
JB		 2440 clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
2441 if (!clips) {
2442 ret = -ENOMEM;
2443 goto out_err1;
2444 }
2445
2446 ret = copy_from_user(clips, clips_ptr,
2447 num_clips * sizeof(*clips));
e902a358
DC		 2448 if (ret) {
2449 ret = -EFAULT;
884840aa 2450 goto out_err2;
e902a358 2451 }
884840aa
JB		 2452 }
2453
2454 if (fb->funcs->dirty) {
02b00162
TH		 2455 ret = fb->funcs->dirty(fb, file_priv, flags, r->color,
2456 clips, num_clips);
884840aa
JB		 2457 } else {
2458 ret = -ENOSYS;
2459 goto out_err2;
2460 }
2461
2462out_err2:
2463 kfree(clips);
2464out_err1:
2465 mutex_unlock(&dev->mode_config.mutex);
2466 return ret;
2467}
2468
2469
f453ba04
DA		 2470/**
2471 * drm_fb_release - remove and free the FBs on this file
2472 * @filp: file * from the ioctl
2473 *
2474 * LOCKING:
2475 * Takes mode config lock.
2476 *
2477 * Destroy all the FBs associated with @filp.
2478 *
2479 * Called by the user via ioctl.
2480 *
2481 * RETURNS:
2482 * Zero on success, errno on failure.
2483 */
ea39f835 2484void drm_fb_release(struct drm_file *priv)
f453ba04 2485{
f453ba04
DA		 2486 struct drm_device *dev = priv->minor->dev;
2487 struct drm_framebuffer *fb, *tfb;
2488
2489 mutex_lock(&dev->mode_config.mutex);
2490 list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
2491 list_del(&fb->filp_head);
2492 fb->funcs->destroy(fb);
2493 }
2494 mutex_unlock(&dev->mode_config.mutex);
2495}
2496
2497/**
2498 * drm_mode_attachmode - add a mode to the user mode list
2499 * @dev: DRM device
2500 * @connector: connector to add the mode to
2501 * @mode: mode to add
2502 *
2503 * Add @mode to @connector's user mode list.
2504 */
1dd6c8bd
VS		 2505static void drm_mode_attachmode(struct drm_device *dev,
2506 struct drm_connector *connector,
2507 struct drm_display_mode *mode)
f453ba04 2508{
f453ba04 2509 list_add_tail(&mode->head, &connector->user_modes);
f453ba04
DA		 2510}
2511
2512int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc,
ac235daf 2513 const struct drm_display_mode *mode)
f453ba04
DA		 2514{
2515 struct drm_connector *connector;
ac235daf
VS		 2516 int ret = 0;
2517 struct drm_display_mode *dup_mode, *next;
2518 LIST_HEAD(list);
2519
f453ba04
DA		 2520 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2521 if (!connector->encoder)
ac235daf 2522 continue;
f453ba04 2523 if (connector->encoder->crtc == crtc) {
ac235daf
VS		 2524 dup_mode = drm_mode_duplicate(dev, mode);
2525 if (!dup_mode) {
2526 ret = -ENOMEM;
2527 goto out;
2528 }
2529 list_add_tail(&dup_mode->head, &list);
f453ba04
DA		 2530 }
2531 }
ac235daf
VS		 2532
2533 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2534 if (!connector->encoder)
2535 continue;
2536 if (connector->encoder->crtc == crtc)
2537 list_move_tail(list.next, &connector->user_modes);
2538 }
2539
2540 WARN_ON(!list_empty(&list));
2541
2542 out:
2543 list_for_each_entry_safe(dup_mode, next, &list, head)
2544 drm_mode_destroy(dev, dup_mode);
2545
2546 return ret;
f453ba04
DA		 2547}
2548EXPORT_SYMBOL(drm_mode_attachmode_crtc);
2549
2550static int drm_mode_detachmode(struct drm_device *dev,
2551 struct drm_connector *connector,
2552 struct drm_display_mode *mode)
2553{
2554 int found = 0;
2555 int ret = 0;
2556 struct drm_display_mode *match_mode, *t;
2557
2558 list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) {
2559 if (drm_mode_equal(match_mode, mode)) {
2560 list_del(&match_mode->head);
2561 drm_mode_destroy(dev, match_mode);
2562 found = 1;
2563 break;
2564 }
2565 }
2566
2567 if (!found)
2568 ret = -EINVAL;
2569
2570 return ret;
2571}
2572
2573int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode)
2574{
2575 struct drm_connector *connector;
2576
2577 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2578 drm_mode_detachmode(dev, connector, mode);
2579 }
2580 return 0;
2581}
2582EXPORT_SYMBOL(drm_mode_detachmode_crtc);
2583
2584/**
2585 * drm_fb_attachmode - Attach a user mode to an connector
2586 * @inode: inode from the ioctl
2587 * @filp: file * from the ioctl
2588 * @cmd: cmd from ioctl
2589 * @arg: arg from ioctl
2590 *
2591 * This attaches a user specified mode to an connector.
2592 * Called by the user via ioctl.
2593 *
2594 * RETURNS:
2595 * Zero on success, errno on failure.
2596 */
2597int drm_mode_attachmode_ioctl(struct drm_device *dev,
2598 void *data, struct drm_file *file_priv)
2599{
2600 struct drm_mode_mode_cmd *mode_cmd = data;
2601 struct drm_connector *connector;
2602 struct drm_display_mode *mode;
2603 struct drm_mode_object *obj;
2604 struct drm_mode_modeinfo *umode = &mode_cmd->mode;
4a1b0714 2605 int ret;
f453ba04 2606
fb3b06c8
DA		 2607 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2608 return -EINVAL;
2609
f453ba04
DA		 2610 mutex_lock(&dev->mode_config.mutex);
2611
2612 obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2613 if (!obj) {
2614 ret = -EINVAL;
2615 goto out;
2616 }
2617 connector = obj_to_connector(obj);
2618
2619 mode = drm_mode_create(dev);
2620 if (!mode) {
2621 ret = -ENOMEM;
2622 goto out;
2623 }
2624
90367bf6
VS		 2625 ret = drm_crtc_convert_umode(mode, umode);
2626 if (ret) {
2627 DRM_DEBUG_KMS("Invalid mode\n");
2628 drm_mode_destroy(dev, mode);
2629 goto out;
2630 }
f453ba04 2631
1dd6c8bd 2632 drm_mode_attachmode(dev, connector, mode);
f453ba04
DA		 2633out:
2634 mutex_unlock(&dev->mode_config.mutex);
2635 return ret;
2636}
2637
2638
2639/**
2640 * drm_fb_detachmode - Detach a user specified mode from an connector
2641 * @inode: inode from the ioctl
2642 * @filp: file * from the ioctl
2643 * @cmd: cmd from ioctl
2644 * @arg: arg from ioctl
2645 *
2646 * Called by the user via ioctl.
2647 *
2648 * RETURNS:
2649 * Zero on success, errno on failure.
2650 */
2651int drm_mode_detachmode_ioctl(struct drm_device *dev,
2652 void *data, struct drm_file *file_priv)
2653{
2654 struct drm_mode_object *obj;
2655 struct drm_mode_mode_cmd *mode_cmd = data;
2656 struct drm_connector *connector;
2657 struct drm_display_mode mode;
2658 struct drm_mode_modeinfo *umode = &mode_cmd->mode;
4a1b0714 2659 int ret;
f453ba04 2660
fb3b06c8
DA		 2661 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2662 return -EINVAL;
2663
f453ba04
DA		 2664 mutex_lock(&dev->mode_config.mutex);
2665
2666 obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2667 if (!obj) {
2668 ret = -EINVAL;
2669 goto out;
2670 }
2671 connector = obj_to_connector(obj);
2672
90367bf6
VS		 2673 ret = drm_crtc_convert_umode(&mode, umode);
2674 if (ret) {
2675 DRM_DEBUG_KMS("Invalid mode\n");
2676 goto out;
2677 }
2678
f453ba04
DA		 2679 ret = drm_mode_detachmode(dev, connector, &mode);
2680out:
2681 mutex_unlock(&dev->mode_config.mutex);
2682 return ret;
2683}
2684
2685struct drm_property *drm_property_create(struct drm_device *dev, int flags,
2686 const char *name, int num_values)
2687{
2688 struct drm_property *property = NULL;
6bfc56aa 2689 int ret;
f453ba04
DA		 2690
2691 property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
2692 if (!property)
2693 return NULL;
2694
2695 if (num_values) {
2696 property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
2697 if (!property->values)
2698 goto fail;
2699 }
2700
6bfc56aa
VS		 2701 ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
2702 if (ret)
2703 goto fail;
2704
f453ba04
DA		 2705 property->flags = flags;
2706 property->num_values = num_values;
2707 INIT_LIST_HEAD(&property->enum_blob_list);
2708
471dd2ef 2709 if (name) {
f453ba04 2710 strncpy(property->name, name, DRM_PROP_NAME_LEN);
471dd2ef
VL		 2711 property->name[DRM_PROP_NAME_LEN-1] = '\0';
2712 }
f453ba04
DA		 2713
2714 list_add_tail(&property->head, &dev->mode_config.property_list);
2715 return property;
2716fail:
6bfc56aa 2717 kfree(property->values);
f453ba04
DA		 2718 kfree(property);
2719 return NULL;
2720}
2721EXPORT_SYMBOL(drm_property_create);
2722
4a67d391
SH		 2723struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags,
2724 const char *name,
2725 const struct drm_prop_enum_list *props,
2726 int num_values)
2727{
2728 struct drm_property *property;
2729 int i, ret;
2730
2731 flags |= DRM_MODE_PROP_ENUM;
2732
2733 property = drm_property_create(dev, flags, name, num_values);
2734 if (!property)
2735 return NULL;
2736
2737 for (i = 0; i < num_values; i++) {
2738 ret = drm_property_add_enum(property, i,
2739 props[i].type,
2740 props[i].name);
2741 if (ret) {
2742 drm_property_destroy(dev, property);
2743 return NULL;
2744 }
2745 }
2746
2747 return property;
2748}
2749EXPORT_SYMBOL(drm_property_create_enum);
2750
49e27545
RC		 2751struct drm_property *drm_property_create_bitmask(struct drm_device *dev,
2752 int flags, const char *name,
2753 const struct drm_prop_enum_list *props,
2754 int num_values)
2755{
2756 struct drm_property *property;
2757 int i, ret;
2758
2759 flags |= DRM_MODE_PROP_BITMASK;
2760
2761 property = drm_property_create(dev, flags, name, num_values);
2762 if (!property)
2763 return NULL;
2764
2765 for (i = 0; i < num_values; i++) {
2766 ret = drm_property_add_enum(property, i,
2767 props[i].type,
2768 props[i].name);
2769 if (ret) {
2770 drm_property_destroy(dev, property);
2771 return NULL;
2772 }
2773 }
2774
2775 return property;
2776}
2777EXPORT_SYMBOL(drm_property_create_bitmask);
2778
d9bc3c02
SH		 2779struct drm_property *drm_property_create_range(struct drm_device *dev, int flags,
2780 const char *name,
2781 uint64_t min, uint64_t max)
2782{
2783 struct drm_property *property;
2784
2785 flags |= DRM_MODE_PROP_RANGE;
2786
2787 property = drm_property_create(dev, flags, name, 2);
2788 if (!property)
2789 return NULL;
2790
2791 property->values[0] = min;
2792 property->values[1] = max;
2793
2794 return property;
2795}
2796EXPORT_SYMBOL(drm_property_create_range);
2797
f453ba04
DA		 2798int drm_property_add_enum(struct drm_property *property, int index,
2799 uint64_t value, const char *name)
2800{
2801 struct drm_property_enum *prop_enum;
2802
49e27545
RC		 2803 if (!(property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)))
2804 return -EINVAL;
2805
2806 /*
2807 * Bitmask enum properties have the additional constraint of values
2808 * from 0 to 63
2809 */
2810 if ((property->flags & DRM_MODE_PROP_BITMASK) && (value > 63))
f453ba04
DA		 2811 return -EINVAL;
2812
2813 if (!list_empty(&property->enum_blob_list)) {
2814 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2815 if (prop_enum->value == value) {
2816 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2817 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2818 return 0;
2819 }
2820 }
2821 }
2822
2823 prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
2824 if (!prop_enum)
2825 return -ENOMEM;
2826
2827 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2828 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2829 prop_enum->value = value;
2830
2831 property->values[index] = value;
2832 list_add_tail(&prop_enum->head, &property->enum_blob_list);
2833 return 0;
2834}
2835EXPORT_SYMBOL(drm_property_add_enum);
2836
2837void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
2838{
2839 struct drm_property_enum *prop_enum, *pt;
2840
2841 list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
2842 list_del(&prop_enum->head);
2843 kfree(prop_enum);
2844 }
2845
2846 if (property->num_values)
2847 kfree(property->values);
2848 drm_mode_object_put(dev, &property->base);
2849 list_del(&property->head);
2850 kfree(property);
2851}
2852EXPORT_SYMBOL(drm_property_destroy);
2853
afea2ad5 2854void drm_connector_attach_property(struct drm_connector *connector,
f453ba04
DA		 2855 struct drm_property *property, uint64_t init_val)
2856{
0057d8dd 2857 drm_object_attach_property(&connector->base, property, init_val);
f453ba04
DA		 2858}
2859EXPORT_SYMBOL(drm_connector_attach_property);
2860
2861int drm_connector_property_set_value(struct drm_connector *connector,
2862 struct drm_property *property, uint64_t value)
2863{
0057d8dd 2864 return drm_object_property_set_value(&connector->base, property, value);
f453ba04
DA		 2865}
2866EXPORT_SYMBOL(drm_connector_property_set_value);
2867
2868int drm_connector_property_get_value(struct drm_connector *connector,
2869 struct drm_property *property, uint64_t *val)
2870{
0057d8dd 2871 return drm_object_property_get_value(&connector->base, property, val);
f453ba04
DA		 2872}
2873EXPORT_SYMBOL(drm_connector_property_get_value);
2874
c543188a
PZ		 2875void drm_object_attach_property(struct drm_mode_object *obj,
2876 struct drm_property *property,
2877 uint64_t init_val)
2878{
7f88a9be 2879 int count = obj->properties->count;
c543188a 2880
7f88a9be
PZ		 2881 if (count == DRM_OBJECT_MAX_PROPERTY) {
2882 WARN(1, "Failed to attach object property (type: 0x%x). Please "
2883 "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time "
2884 "you see this message on the same object type.\n",
2885 obj->type);
2886 return;
c543188a
PZ		 2887 }
2888
7f88a9be
PZ		 2889 obj->properties->ids[count] = property->base.id;
2890 obj->properties->values[count] = init_val;
2891 obj->properties->count++;
c543188a
PZ		 2892}
2893EXPORT_SYMBOL(drm_object_attach_property);
2894
2895int drm_object_property_set_value(struct drm_mode_object *obj,
2896 struct drm_property *property, uint64_t val)
2897{
2898 int i;
2899
7f88a9be 2900 for (i = 0; i < obj->properties->count; i++) {
c543188a
PZ		 2901 if (obj->properties->ids[i] == property->base.id) {
2902 obj->properties->values[i] = val;
2903 return 0;
2904 }
2905 }
2906
2907 return -EINVAL;
2908}
2909EXPORT_SYMBOL(drm_object_property_set_value);
2910
2911int drm_object_property_get_value(struct drm_mode_object *obj,
2912 struct drm_property *property, uint64_t *val)
2913{
2914 int i;
2915
7f88a9be 2916 for (i = 0; i < obj->properties->count; i++) {
c543188a
PZ		 2917 if (obj->properties->ids[i] == property->base.id) {
2918 *val = obj->properties->values[i];
2919 return 0;
2920 }
2921 }
2922
2923 return -EINVAL;
2924}
2925EXPORT_SYMBOL(drm_object_property_get_value);
2926
f453ba04
DA		 2927int drm_mode_getproperty_ioctl(struct drm_device *dev,
2928 void *data, struct drm_file *file_priv)
2929{
2930 struct drm_mode_object *obj;
2931 struct drm_mode_get_property *out_resp = data;
2932 struct drm_property *property;
2933 int enum_count = 0;
2934 int blob_count = 0;
2935 int value_count = 0;
2936 int ret = 0, i;
2937 int copied;
2938 struct drm_property_enum *prop_enum;
2939 struct drm_mode_property_enum __user *enum_ptr;
2940 struct drm_property_blob *prop_blob;
81f6c7f8 2941 uint32_t __user *blob_id_ptr;
f453ba04
DA		 2942 uint64_t __user *values_ptr;
2943 uint32_t __user *blob_length_ptr;
2944
fb3b06c8
DA		 2945 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2946 return -EINVAL;
2947
f453ba04
DA		 2948 mutex_lock(&dev->mode_config.mutex);
2949 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2950 if (!obj) {
2951 ret = -EINVAL;
2952 goto done;
2953 }
2954 property = obj_to_property(obj);
2955
49e27545 2956 if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) {
f453ba04
DA		 2957 list_for_each_entry(prop_enum, &property->enum_blob_list, head)
2958 enum_count++;
2959 } else if (property->flags & DRM_MODE_PROP_BLOB) {
2960 list_for_each_entry(prop_blob, &property->enum_blob_list, head)
2961 blob_count++;
2962 }
2963
2964 value_count = property->num_values;
2965
2966 strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
2967 out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
2968 out_resp->flags = property->flags;
2969
2970 if ((out_resp->count_values >= value_count) && value_count) {
81f6c7f8 2971 values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr;
f453ba04
DA		 2972 for (i = 0; i < value_count; i++) {
2973 if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
2974 ret = -EFAULT;
2975 goto done;
2976 }
2977 }
2978 }
2979 out_resp->count_values = value_count;
2980
49e27545 2981 if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) {
f453ba04
DA		 2982 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
2983 copied = 0;
81f6c7f8 2984 enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr;
f453ba04
DA		 2985 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2986
2987 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
2988 ret = -EFAULT;
2989 goto done;
2990 }
2991
2992 if (copy_to_user(&enum_ptr[copied].name,
2993 &prop_enum->name, DRM_PROP_NAME_LEN)) {
2994 ret = -EFAULT;
2995 goto done;
2996 }
2997 copied++;
2998 }
2999 }
3000 out_resp->count_enum_blobs = enum_count;
3001 }
3002
3003 if (property->flags & DRM_MODE_PROP_BLOB) {
3004 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
3005 copied = 0;
81f6c7f8
VS		 3006 blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr;
3007 blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr;
f453ba04
DA		 3008
3009 list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
3010 if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
3011 ret = -EFAULT;
3012 goto done;
3013 }
3014
3015 if (put_user(prop_blob->length, blob_length_ptr + copied)) {
3016 ret = -EFAULT;
3017 goto done;
3018 }
3019
3020 copied++;
3021 }
3022 }
3023 out_resp->count_enum_blobs = blob_count;
3024 }
3025done:
3026 mutex_unlock(&dev->mode_config.mutex);
3027 return ret;
3028}
3029
3030static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
3031 void *data)
3032{
3033 struct drm_property_blob *blob;
6bfc56aa 3034 int ret;
f453ba04
DA		 3035
3036 if (!length || !data)
3037 return NULL;
3038
3039 blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
3040 if (!blob)
3041 return NULL;
3042
6bfc56aa
VS		 3043 ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
3044 if (ret) {
3045 kfree(blob);
3046 return NULL;
3047 }
3048
f453ba04
DA		 3049 blob->length = length;
3050
3051 memcpy(blob->data, data, length);
3052
f453ba04
DA		 3053 list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
3054 return blob;
3055}
3056
3057static void drm_property_destroy_blob(struct drm_device *dev,
3058 struct drm_property_blob *blob)
3059{
3060 drm_mode_object_put(dev, &blob->base);
3061 list_del(&blob->head);
3062 kfree(blob);
3063}
3064
3065int drm_mode_getblob_ioctl(struct drm_device *dev,
3066 void *data, struct drm_file *file_priv)
3067{
3068 struct drm_mode_object *obj;
3069 struct drm_mode_get_blob *out_resp = data;
3070 struct drm_property_blob *blob;
3071 int ret = 0;
81f6c7f8 3072 void __user *blob_ptr;
f453ba04 3073
fb3b06c8
DA		 3074 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3075 return -EINVAL;
3076
f453ba04
DA		 3077 mutex_lock(&dev->mode_config.mutex);
3078 obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
3079 if (!obj) {
3080 ret = -EINVAL;
3081 goto done;
3082 }
3083 blob = obj_to_blob(obj);
3084
3085 if (out_resp->length == blob->length) {
81f6c7f8 3086 blob_ptr = (void __user *)(unsigned long)out_resp->data;
f453ba04
DA		 3087 if (copy_to_user(blob_ptr, blob->data, blob->length)){
3088 ret = -EFAULT;
3089 goto done;
3090 }
3091 }
3092 out_resp->length = blob->length;
3093
3094done:
3095 mutex_unlock(&dev->mode_config.mutex);
3096 return ret;
3097}
3098
3099int drm_mode_connector_update_edid_property(struct drm_connector *connector,
3100 struct edid *edid)
3101{
3102 struct drm_device *dev = connector->dev;
4a1b0714 3103 int ret, size;
f453ba04
DA		 3104
3105 if (connector->edid_blob_ptr)
3106 drm_property_destroy_blob(dev, connector->edid_blob_ptr);
3107
3108 /* Delete edid, when there is none. */
3109 if (!edid) {
3110 connector->edid_blob_ptr = NULL;
3111 ret = drm_connector_property_set_value(connector, dev->mode_config.edid_property, 0);
3112 return ret;
3113 }
3114
7466f4cc
AJ		 3115 size = EDID_LENGTH * (1 + edid->extensions);
3116 connector->edid_blob_ptr = drm_property_create_blob(connector->dev,
3117 size, edid);
f453ba04
DA		 3118
3119 ret = drm_connector_property_set_value(connector,
3120 dev->mode_config.edid_property,
3121 connector->edid_blob_ptr->base.id);
3122
3123 return ret;
3124}
3125EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
3126
26a34815 3127static bool drm_property_change_is_valid(struct drm_property *property,
592c20ee 3128 uint64_t value)
26a34815
PZ		 3129{
3130 if (property->flags & DRM_MODE_PROP_IMMUTABLE)
3131 return false;
3132 if (property->flags & DRM_MODE_PROP_RANGE) {
3133 if (value < property->values[0] || value > property->values[1])
3134 return false;
3135 return true;
49e27545
RC		 3136 } else if (property->flags & DRM_MODE_PROP_BITMASK) {
3137 int i;
592c20ee 3138 uint64_t valid_mask = 0;
49e27545
RC		 3139 for (i = 0; i < property->num_values; i++)
3140 valid_mask |= (1ULL << property->values[i]);
3141 return !(value & ~valid_mask);
26a34815
PZ		 3142 } else {
3143 int i;
3144 for (i = 0; i < property->num_values; i++)
3145 if (property->values[i] == value)
3146 return true;
3147 return false;
3148 }
3149}
3150
f453ba04
DA		 3151int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
3152 void *data, struct drm_file *file_priv)
3153{
0057d8dd
PZ		 3154 struct drm_mode_connector_set_property *conn_set_prop = data;
3155 struct drm_mode_obj_set_property obj_set_prop = {
3156 .value = conn_set_prop->value,
3157 .prop_id = conn_set_prop->prop_id,
3158 .obj_id = conn_set_prop->connector_id,
3159 .obj_type = DRM_MODE_OBJECT_CONNECTOR
3160 };
fb3b06c8 3161
0057d8dd
PZ		 3162 /* It does all the locking and checking we need */
3163 return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv);
f453ba04
DA		 3164}
3165
c543188a
PZ		 3166static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj,
3167 struct drm_property *property,
3168 uint64_t value)
3169{
3170 int ret = -EINVAL;
3171 struct drm_connector *connector = obj_to_connector(obj);
3172
3173 /* Do DPMS ourselves */
3174 if (property == connector->dev->mode_config.dpms_property) {
3175 if (connector->funcs->dpms)
3176 (*connector->funcs->dpms)(connector, (int)value);
3177 ret = 0;
3178 } else if (connector->funcs->set_property)
3179 ret = connector->funcs->set_property(connector, property, value);
3180
3181 /* store the property value if successful */
3182 if (!ret)
3183 drm_connector_property_set_value(connector, property, value);
3184 return ret;
3185}
3186
bffd9de0
PZ		 3187static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj,
3188 struct drm_property *property,
3189 uint64_t value)
3190{
3191 int ret = -EINVAL;
3192 struct drm_crtc *crtc = obj_to_crtc(obj);
3193
3194 if (crtc->funcs->set_property)
3195 ret = crtc->funcs->set_property(crtc, property, value);
3196 if (!ret)
3197 drm_object_property_set_value(obj, property, value);
3198
3199 return ret;
3200}
3201
4d93914a
RC		 3202static int drm_mode_plane_set_obj_prop(struct drm_mode_object *obj,
3203 struct drm_property *property,
3204 uint64_t value)
3205{
3206 int ret = -EINVAL;
3207 struct drm_plane *plane = obj_to_plane(obj);
3208
3209 if (plane->funcs->set_property)
3210 ret = plane->funcs->set_property(plane, property, value);
3211 if (!ret)
3212 drm_object_property_set_value(obj, property, value);
3213
3214 return ret;
3215}
3216
c543188a
PZ		 3217int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
3218 struct drm_file *file_priv)
3219{
3220 struct drm_mode_obj_get_properties *arg = data;
3221 struct drm_mode_object *obj;
3222 int ret = 0;
3223 int i;
3224 int copied = 0;
3225 int props_count = 0;
3226 uint32_t __user *props_ptr;
3227 uint64_t __user *prop_values_ptr;
3228
3229 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3230 return -EINVAL;
3231
3232 mutex_lock(&dev->mode_config.mutex);
3233
3234 obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type);
3235 if (!obj) {
3236 ret = -EINVAL;
3237 goto out;
3238 }
3239 if (!obj->properties) {
3240 ret = -EINVAL;
3241 goto out;
3242 }
3243
7f88a9be 3244 props_count = obj->properties->count;
c543188a
PZ		 3245
3246 /* This ioctl is called twice, once to determine how much space is
3247 * needed, and the 2nd time to fill it. */
3248 if ((arg->count_props >= props_count) && props_count) {
3249 copied = 0;
3250 props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr);
3251 prop_values_ptr = (uint64_t __user *)(unsigned long)
3252 (arg->prop_values_ptr);
3253 for (i = 0; i < props_count; i++) {
3254 if (put_user(obj->properties->ids[i],
3255 props_ptr + copied)) {
3256 ret = -EFAULT;
3257 goto out;
3258 }
3259 if (put_user(obj->properties->values[i],
3260 prop_values_ptr + copied)) {
3261 ret = -EFAULT;
3262 goto out;
3263 }
3264 copied++;
3265 }
3266 }
3267 arg->count_props = props_count;
3268out:
3269 mutex_unlock(&dev->mode_config.mutex);
3270 return ret;
3271}
3272
3273int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
3274 struct drm_file *file_priv)
3275{
3276 struct drm_mode_obj_set_property *arg = data;
3277 struct drm_mode_object *arg_obj;
3278 struct drm_mode_object *prop_obj;
3279 struct drm_property *property;
3280 int ret = -EINVAL;
3281 int i;
3282
3283 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3284 return -EINVAL;
3285
3286 mutex_lock(&dev->mode_config.mutex);
3287
3288 arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type);
3289 if (!arg_obj)
3290 goto out;
3291 if (!arg_obj->properties)
3292 goto out;
3293
7f88a9be 3294 for (i = 0; i < arg_obj->properties->count; i++)
c543188a
PZ		 3295 if (arg_obj->properties->ids[i] == arg->prop_id)
3296 break;
3297
7f88a9be 3298 if (i == arg_obj->properties->count)
c543188a
PZ		 3299 goto out;
3300
3301 prop_obj = drm_mode_object_find(dev, arg->prop_id,
3302 DRM_MODE_OBJECT_PROPERTY);
3303 if (!prop_obj)
3304 goto out;
3305 property = obj_to_property(prop_obj);
3306
3307 if (!drm_property_change_is_valid(property, arg->value))
3308 goto out;
3309
3310 switch (arg_obj->type) {
3311 case DRM_MODE_OBJECT_CONNECTOR:
3312 ret = drm_mode_connector_set_obj_prop(arg_obj, property,
3313 arg->value);
3314 break;
bffd9de0
PZ		 3315 case DRM_MODE_OBJECT_CRTC:
3316 ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value);
3317 break;
4d93914a
RC		 3318 case DRM_MODE_OBJECT_PLANE:
3319 ret = drm_mode_plane_set_obj_prop(arg_obj, property, arg->value);
3320 break;
c543188a
PZ		 3321 }
3322
3323out:
3324 mutex_unlock(&dev->mode_config.mutex);
3325 return ret;
3326}
3327
f453ba04
DA		 3328int drm_mode_connector_attach_encoder(struct drm_connector *connector,
3329 struct drm_encoder *encoder)
3330{
3331 int i;
3332
3333 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3334 if (connector->encoder_ids[i] == 0) {
3335 connector->encoder_ids[i] = encoder->base.id;
3336 return 0;
3337 }
3338 }
3339 return -ENOMEM;
3340}
3341EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
3342
3343void drm_mode_connector_detach_encoder(struct drm_connector *connector,
3344 struct drm_encoder *encoder)
3345{
3346 int i;
3347 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
3348 if (connector->encoder_ids[i] == encoder->base.id) {
3349 connector->encoder_ids[i] = 0;
3350 if (connector->encoder == encoder)
3351 connector->encoder = NULL;
3352 break;
3353 }
3354 }
3355}
3356EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
3357
4cae5b84 3358int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
f453ba04
DA		 3359 int gamma_size)
3360{
3361 crtc->gamma_size = gamma_size;
3362
3363 crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
3364 if (!crtc->gamma_store) {
3365 crtc->gamma_size = 0;
4cae5b84 3366 return -ENOMEM;
f453ba04
DA		 3367 }
3368
4cae5b84 3369 return 0;
f453ba04
DA		 3370}
3371EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
3372
3373int drm_mode_gamma_set_ioctl(struct drm_device *dev,
3374 void *data, struct drm_file *file_priv)
3375{
3376 struct drm_mode_crtc_lut *crtc_lut = data;
3377 struct drm_mode_object *obj;
3378 struct drm_crtc *crtc;
3379 void *r_base, *g_base, *b_base;
3380 int size;
3381 int ret = 0;
3382
fb3b06c8
DA		 3383 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3384 return -EINVAL;
3385
f453ba04
DA		 3386 mutex_lock(&dev->mode_config.mutex);
3387 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3388 if (!obj) {
3389 ret = -EINVAL;
3390 goto out;
3391 }
3392 crtc = obj_to_crtc(obj);
3393
ebe0f244
LP		 3394 if (crtc->funcs->gamma_set == NULL) {
3395 ret = -ENOSYS;
3396 goto out;
3397 }
3398
f453ba04
DA		 3399 /* memcpy into gamma store */
3400 if (crtc_lut->gamma_size != crtc->gamma_size) {
3401 ret = -EINVAL;
3402 goto out;
3403 }
3404
3405 size = crtc_lut->gamma_size * (sizeof(uint16_t));
3406 r_base = crtc->gamma_store;
3407 if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
3408 ret = -EFAULT;
3409 goto out;
3410 }
3411
3412 g_base = r_base + size;
3413 if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
3414 ret = -EFAULT;
3415 goto out;
3416 }
3417
3418 b_base = g_base + size;
3419 if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
3420 ret = -EFAULT;
3421 goto out;
3422 }
3423
7203425a 3424 crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
f453ba04
DA		 3425
3426out:
3427 mutex_unlock(&dev->mode_config.mutex);
3428 return ret;
3429
3430}
3431
3432int drm_mode_gamma_get_ioctl(struct drm_device *dev,
3433 void *data, struct drm_file *file_priv)
3434{
3435 struct drm_mode_crtc_lut *crtc_lut = data;
3436 struct drm_mode_object *obj;
3437 struct drm_crtc *crtc;
3438 void *r_base, *g_base, *b_base;
3439 int size;
3440 int ret = 0;
3441
fb3b06c8
DA		 3442 if (!drm_core_check_feature(dev, DRIVER_MODESET))
3443 return -EINVAL;
3444
f453ba04
DA		 3445 mutex_lock(&dev->mode_config.mutex);
3446 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
3447 if (!obj) {
3448 ret = -EINVAL;
3449 goto out;
3450 }
3451 crtc = obj_to_crtc(obj);
3452
3453 /* memcpy into gamma store */
3454 if (crtc_lut->gamma_size != crtc->gamma_size) {
3455 ret = -EINVAL;
3456 goto out;
3457 }
3458
3459 size = crtc_lut->gamma_size * (sizeof(uint16_t));
3460 r_base = crtc->gamma_store;
3461 if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
3462 ret = -EFAULT;
3463 goto out;
3464 }
3465
3466 g_base = r_base + size;
3467 if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
3468 ret = -EFAULT;
3469 goto out;
3470 }
3471
3472 b_base = g_base + size;
3473 if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
3474 ret = -EFAULT;
3475 goto out;
3476 }
3477out:
3478 mutex_unlock(&dev->mode_config.mutex);
3479 return ret;
3480}
d91d8a3f
KH		 3481
3482int drm_mode_page_flip_ioctl(struct drm_device *dev,
3483 void *data, struct drm_file *file_priv)
3484{
3485 struct drm_mode_crtc_page_flip *page_flip = data;
3486 struct drm_mode_object *obj;
3487 struct drm_crtc *crtc;
3488 struct drm_framebuffer *fb;
3489 struct drm_pending_vblank_event *e = NULL;
3490 unsigned long flags;
3491 int ret = -EINVAL;
3492
3493 if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
3494 page_flip->reserved != 0)
3495 return -EINVAL;
3496
3497 mutex_lock(&dev->mode_config.mutex);
3498 obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC);
3499 if (!obj)
3500 goto out;
3501 crtc = obj_to_crtc(obj);
3502
90c1efdd
CW		 3503 if (crtc->fb == NULL) {
3504 /* The framebuffer is currently unbound, presumably
3505 * due to a hotplug event, that userspace has not
3506 * yet discovered.
3507 */
3508 ret = -EBUSY;
3509 goto out;
3510 }
3511
d91d8a3f
KH		 3512 if (crtc->funcs->page_flip == NULL)
3513 goto out;
3514
3515 obj = drm_mode_object_find(dev, page_flip->fb_id, DRM_MODE_OBJECT_FB);
3516 if (!obj)
3517 goto out;
3518 fb = obj_to_fb(obj);
3519
5f61bb42
VS		 3520 if (crtc->mode.hdisplay > fb->width ||
3521 crtc->mode.vdisplay > fb->height ||
3522 crtc->x > fb->width - crtc->mode.hdisplay ||
3523 crtc->y > fb->height - crtc->mode.vdisplay) {
3524 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d.\n",
3525 fb->width, fb->height,
3526 crtc->mode.hdisplay, crtc->mode.vdisplay,
3527 crtc->x, crtc->y);
3528 ret = -ENOSPC;
3529 goto out;
3530 }
3531
d91d8a3f
KH		 3532 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3533 ret = -ENOMEM;
3534 spin_lock_irqsave(&dev->event_lock, flags);
3535 if (file_priv->event_space < sizeof e->event) {
3536 spin_unlock_irqrestore(&dev->event_lock, flags);
3537 goto out;
3538 }
3539 file_priv->event_space -= sizeof e->event;
3540 spin_unlock_irqrestore(&dev->event_lock, flags);
3541
3542 e = kzalloc(sizeof *e, GFP_KERNEL);
3543 if (e == NULL) {
3544 spin_lock_irqsave(&dev->event_lock, flags);
3545 file_priv->event_space += sizeof e->event;
3546 spin_unlock_irqrestore(&dev->event_lock, flags);
3547 goto out;
3548 }
3549
7bd4d7be 3550 e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
d91d8a3f
KH		 3551 e->event.base.length = sizeof e->event;
3552 e->event.user_data = page_flip->user_data;
3553 e->base.event = &e->event.base;
3554 e->base.file_priv = file_priv;
3555 e->base.destroy =
3556 (void (*) (struct drm_pending_event *)) kfree;
3557 }
3558
3559 ret = crtc->funcs->page_flip(crtc, fb, e);
3560 if (ret) {
aef6a7ee
JS		 3561 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3562 spin_lock_irqsave(&dev->event_lock, flags);
3563 file_priv->event_space += sizeof e->event;
3564 spin_unlock_irqrestore(&dev->event_lock, flags);
3565 kfree(e);
3566 }
d91d8a3f
KH		 3567 }
3568
3569out:
3570 mutex_unlock(&dev->mode_config.mutex);
3571 return ret;
3572}
eb033556
CW		 3573
3574void drm_mode_config_reset(struct drm_device *dev)
3575{
3576 struct drm_crtc *crtc;
3577 struct drm_encoder *encoder;
3578 struct drm_connector *connector;
3579
3580 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
3581 if (crtc->funcs->reset)
3582 crtc->funcs->reset(crtc);
3583
3584 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
3585 if (encoder->funcs->reset)
3586 encoder->funcs->reset(encoder);
3587
3588 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
3589 if (connector->funcs->reset)
3590 connector->funcs->reset(connector);
3591}
3592EXPORT_SYMBOL(drm_mode_config_reset);
ff72145b
DA		 3593
3594int drm_mode_create_dumb_ioctl(struct drm_device *dev,
3595 void *data, struct drm_file *file_priv)
3596{
3597 struct drm_mode_create_dumb *args = data;
3598
3599 if (!dev->driver->dumb_create)
3600 return -ENOSYS;
3601 return dev->driver->dumb_create(file_priv, dev, args);
3602}
3603
3604int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
3605 void *data, struct drm_file *file_priv)
3606{
3607 struct drm_mode_map_dumb *args = data;
3608
3609 /* call driver ioctl to get mmap offset */
3610 if (!dev->driver->dumb_map_offset)
3611 return -ENOSYS;
3612
3613 return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset);
3614}
3615
3616int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
3617 void *data, struct drm_file *file_priv)
3618{
3619 struct drm_mode_destroy_dumb *args = data;
3620
3621 if (!dev->driver->dumb_destroy)
3622 return -ENOSYS;
3623
3624 return dev->driver->dumb_destroy(file_priv, dev, args->handle);
3625}
248dbc23
DA		 3626
3627/*
3628 * Just need to support RGB formats here for compat with code that doesn't
3629 * use pixel formats directly yet.
3630 */
3631void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
3632 int *bpp)
3633{
3634 switch (format) {
04b3924d
VS		 3635 case DRM_FORMAT_RGB332:
3636 case DRM_FORMAT_BGR233:
248dbc23
DA		 3637 *depth = 8;
3638 *bpp = 8;
3639 break;
04b3924d
VS		 3640 case DRM_FORMAT_XRGB1555:
3641 case DRM_FORMAT_XBGR1555:
3642 case DRM_FORMAT_RGBX5551:
3643 case DRM_FORMAT_BGRX5551:
3644 case DRM_FORMAT_ARGB1555:
3645 case DRM_FORMAT_ABGR1555:
3646 case DRM_FORMAT_RGBA5551:
3647 case DRM_FORMAT_BGRA5551:
248dbc23
DA		 3648 *depth = 15;
3649 *bpp = 16;
3650 break;
04b3924d
VS		 3651 case DRM_FORMAT_RGB565:
3652 case DRM_FORMAT_BGR565:
248dbc23
DA		 3653 *depth = 16;
3654 *bpp = 16;
3655 break;
04b3924d
VS		 3656 case DRM_FORMAT_RGB888:
3657 case DRM_FORMAT_BGR888:
3658 *depth = 24;
3659 *bpp = 24;
3660 break;
3661 case DRM_FORMAT_XRGB8888:
3662 case DRM_FORMAT_XBGR8888:
3663 case DRM_FORMAT_RGBX8888:
3664 case DRM_FORMAT_BGRX8888:
248dbc23
DA		 3665 *depth = 24;
3666 *bpp = 32;
3667 break;
04b3924d
VS		 3668 case DRM_FORMAT_XRGB2101010:
3669 case DRM_FORMAT_XBGR2101010:
3670 case DRM_FORMAT_RGBX1010102:
3671 case DRM_FORMAT_BGRX1010102:
3672 case DRM_FORMAT_ARGB2101010:
3673 case DRM_FORMAT_ABGR2101010:
3674 case DRM_FORMAT_RGBA1010102:
3675 case DRM_FORMAT_BGRA1010102:
248dbc23
DA		 3676 *depth = 30;
3677 *bpp = 32;
3678 break;
04b3924d
VS		 3679 case DRM_FORMAT_ARGB8888:
3680 case DRM_FORMAT_ABGR8888:
3681 case DRM_FORMAT_RGBA8888:
3682 case DRM_FORMAT_BGRA8888:
248dbc23
DA		 3683 *depth = 32;
3684 *bpp = 32;
3685 break;
3686 default:
3687 DRM_DEBUG_KMS("unsupported pixel format\n");
3688 *depth = 0;
3689 *bpp = 0;
3690 break;
3691 }
3692}
3693EXPORT_SYMBOL(drm_fb_get_bpp_depth);
141670e9
VS		 3694
3695/**
3696 * drm_format_num_planes - get the number of planes for format
3697 * @format: pixel format (DRM_FORMAT_*)
3698 *
3699 * RETURNS:
3700 * The number of planes used by the specified pixel format.
3701 */
3702int drm_format_num_planes(uint32_t format)
3703{
3704 switch (format) {
3705 case DRM_FORMAT_YUV410:
3706 case DRM_FORMAT_YVU410:
3707 case DRM_FORMAT_YUV411:
3708 case DRM_FORMAT_YVU411:
3709 case DRM_FORMAT_YUV420:
3710 case DRM_FORMAT_YVU420:
3711 case DRM_FORMAT_YUV422:
3712 case DRM_FORMAT_YVU422:
3713 case DRM_FORMAT_YUV444:
3714 case DRM_FORMAT_YVU444:
3715 return 3;
3716 case DRM_FORMAT_NV12:
3717 case DRM_FORMAT_NV21:
3718 case DRM_FORMAT_NV16:
3719 case DRM_FORMAT_NV61:
3720 return 2;
3721 default:
3722 return 1;
3723 }
3724}
3725EXPORT_SYMBOL(drm_format_num_planes);
5a86bd55
VS		 3726
3727/**
3728 * drm_format_plane_cpp - determine the bytes per pixel value
3729 * @format: pixel format (DRM_FORMAT_*)
3730 * @plane: plane index
3731 *
3732 * RETURNS:
3733 * The bytes per pixel value for the specified plane.
3734 */
3735int drm_format_plane_cpp(uint32_t format, int plane)
3736{
3737 unsigned int depth;
3738 int bpp;
3739
3740 if (plane >= drm_format_num_planes(format))
3741 return 0;
3742
3743 switch (format) {
3744 case DRM_FORMAT_YUYV:
3745 case DRM_FORMAT_YVYU:
3746 case DRM_FORMAT_UYVY:
3747 case DRM_FORMAT_VYUY:
3748 return 2;
3749 case DRM_FORMAT_NV12:
3750 case DRM_FORMAT_NV21:
3751 case DRM_FORMAT_NV16:
3752 case DRM_FORMAT_NV61:
3753 return plane ? 2 : 1;
3754 case DRM_FORMAT_YUV410:
3755 case DRM_FORMAT_YVU410:
3756 case DRM_FORMAT_YUV411:
3757 case DRM_FORMAT_YVU411:
3758 case DRM_FORMAT_YUV420:
3759 case DRM_FORMAT_YVU420:
3760 case DRM_FORMAT_YUV422:
3761 case DRM_FORMAT_YVU422:
3762 case DRM_FORMAT_YUV444:
3763 case DRM_FORMAT_YVU444:
3764 return 1;
3765 default:
3766 drm_fb_get_bpp_depth(format, &depth, &bpp);
3767 return bpp >> 3;
3768 }
3769}
3770EXPORT_SYMBOL(drm_format_plane_cpp);
01b68b04
VS		 3771
3772/**
3773 * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor
3774 * @format: pixel format (DRM_FORMAT_*)
3775 *
3776 * RETURNS:
3777 * The horizontal chroma subsampling factor for the
3778 * specified pixel format.
3779 */
3780int drm_format_horz_chroma_subsampling(uint32_t format)
3781{
3782 switch (format) {
3783 case DRM_FORMAT_YUV411:
3784 case DRM_FORMAT_YVU411:
3785 case DRM_FORMAT_YUV410:
3786 case DRM_FORMAT_YVU410:
3787 return 4;
3788 case DRM_FORMAT_YUYV:
3789 case DRM_FORMAT_YVYU:
3790 case DRM_FORMAT_UYVY:
3791 case DRM_FORMAT_VYUY:
3792 case DRM_FORMAT_NV12:
3793 case DRM_FORMAT_NV21:
3794 case DRM_FORMAT_NV16:
3795 case DRM_FORMAT_NV61:
3796 case DRM_FORMAT_YUV422:
3797 case DRM_FORMAT_YVU422:
3798 case DRM_FORMAT_YUV420:
3799 case DRM_FORMAT_YVU420:
3800 return 2;
3801 default:
3802 return 1;
3803 }
3804}
3805EXPORT_SYMBOL(drm_format_horz_chroma_subsampling);
3806
3807/**
3808 * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor
3809 * @format: pixel format (DRM_FORMAT_*)
3810 *
3811 * RETURNS:
3812 * The vertical chroma subsampling factor for the
3813 * specified pixel format.
3814 */
3815int drm_format_vert_chroma_subsampling(uint32_t format)
3816{
3817 switch (format) {
3818 case DRM_FORMAT_YUV410:
3819 case DRM_FORMAT_YVU410:
3820 return 4;
3821 case DRM_FORMAT_YUV420:
3822 case DRM_FORMAT_YVU420:
3823 case DRM_FORMAT_NV12:
3824 case DRM_FORMAT_NV21:
3825 return 2;
3826 default:
3827 return 1;
3828 }
3829}
3830EXPORT_SYMBOL(drm_format_vert_chroma_subsampling);
kernel source for telekom puls (alcatel/mediatek)