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drm: document the drm_mode_config structure
[deliverable/linux.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>
f453ba04
DA		 35#include "drm.h"
36#include "drmP.h"
37#include "drm_crtc.h"
7466f4cc 38#include "drm_edid.h"
308e5bcb 39#include "drm_fourcc.h"
f453ba04
DA		 40
41struct drm_prop_enum_list {
42 int type;
43 char *name;
44};
45
46/* Avoid boilerplate. I'm tired of typing. */
47#define DRM_ENUM_NAME_FN(fnname, list) \
48 char *fnname(int val) \
49 { \
50 int i; \
51 for (i = 0; i < ARRAY_SIZE(list); i++) { \
52 if (list[i].type == val) \
53 return list[i].name; \
54 } \
55 return "(unknown)"; \
56 }
57
58/*
59 * Global properties
60 */
61static struct drm_prop_enum_list drm_dpms_enum_list[] =
62{ { DRM_MODE_DPMS_ON, "On" },
63 { DRM_MODE_DPMS_STANDBY, "Standby" },
64 { DRM_MODE_DPMS_SUSPEND, "Suspend" },
65 { DRM_MODE_DPMS_OFF, "Off" }
66};
67
68DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list)
69
70/*
71 * Optional properties
72 */
73static struct drm_prop_enum_list drm_scaling_mode_enum_list[] =
74{
53bd8389
JB		 75 { DRM_MODE_SCALE_NONE, "None" },
76 { DRM_MODE_SCALE_FULLSCREEN, "Full" },
77 { DRM_MODE_SCALE_CENTER, "Center" },
78 { DRM_MODE_SCALE_ASPECT, "Full aspect" },
f453ba04
DA		 79};
80
81static struct drm_prop_enum_list drm_dithering_mode_enum_list[] =
82{
83 { DRM_MODE_DITHERING_OFF, "Off" },
84 { DRM_MODE_DITHERING_ON, "On" },
92897b5c 85 { DRM_MODE_DITHERING_AUTO, "Automatic" },
f453ba04
DA		 86};
87
88/*
89 * Non-global properties, but "required" for certain connectors.
90 */
91static struct drm_prop_enum_list drm_dvi_i_select_enum_list[] =
92{
93 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
94 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
95 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
96};
97
98DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list)
99
100static struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] =
101{
102 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
103 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
104 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
105};
106
107DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name,
108 drm_dvi_i_subconnector_enum_list)
109
110static struct drm_prop_enum_list drm_tv_select_enum_list[] =
111{
112 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
113 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
114 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
115 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
aeaa1ad3 116 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
f453ba04
DA		 117};
118
119DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list)
120
121static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] =
122{
123 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
124 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
125 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
126 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
aeaa1ad3 127 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
f453ba04
DA		 128};
129
130DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
131 drm_tv_subconnector_enum_list)
132
884840aa
JB		 133static struct drm_prop_enum_list drm_dirty_info_enum_list[] = {
134 { DRM_MODE_DIRTY_OFF, "Off" },
135 { DRM_MODE_DIRTY_ON, "On" },
136 { DRM_MODE_DIRTY_ANNOTATE, "Annotate" },
137};
138
139DRM_ENUM_NAME_FN(drm_get_dirty_info_name,
140 drm_dirty_info_enum_list)
141
f453ba04
DA		 142struct drm_conn_prop_enum_list {
143 int type;
144 char *name;
145 int count;
146};
147
148/*
149 * Connector and encoder types.
150 */
151static struct drm_conn_prop_enum_list drm_connector_enum_list[] =
152{ { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 },
153 { DRM_MODE_CONNECTOR_VGA, "VGA", 0 },
154 { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 },
155 { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 },
156 { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 },
157 { DRM_MODE_CONNECTOR_Composite, "Composite", 0 },
158 { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 },
159 { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 },
160 { DRM_MODE_CONNECTOR_Component, "Component", 0 },
e76116ca
AD		 161 { DRM_MODE_CONNECTOR_9PinDIN, "DIN", 0 },
162 { DRM_MODE_CONNECTOR_DisplayPort, "DP", 0 },
163 { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A", 0 },
164 { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B", 0 },
74bd3c26 165 { DRM_MODE_CONNECTOR_TV, "TV", 0 },
e76116ca 166 { DRM_MODE_CONNECTOR_eDP, "eDP", 0 },
a7331e5c 167 { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual", 0},
f453ba04
DA		 168};
169
170static struct drm_prop_enum_list drm_encoder_enum_list[] =
171{ { DRM_MODE_ENCODER_NONE, "None" },
172 { DRM_MODE_ENCODER_DAC, "DAC" },
173 { DRM_MODE_ENCODER_TMDS, "TMDS" },
174 { DRM_MODE_ENCODER_LVDS, "LVDS" },
175 { DRM_MODE_ENCODER_TVDAC, "TV" },
a7331e5c 176 { DRM_MODE_ENCODER_VIRTUAL, "Virtual" },
f453ba04
DA		 177};
178
179char *drm_get_encoder_name(struct drm_encoder *encoder)
180{
181 static char buf[32];
182
183 snprintf(buf, 32, "%s-%d",
184 drm_encoder_enum_list[encoder->encoder_type].name,
185 encoder->base.id);
186 return buf;
187}
13a8195b 188EXPORT_SYMBOL(drm_get_encoder_name);
f453ba04
DA		 189
190char *drm_get_connector_name(struct drm_connector *connector)
191{
192 static char buf[32];
193
194 snprintf(buf, 32, "%s-%d",
195 drm_connector_enum_list[connector->connector_type].name,
196 connector->connector_type_id);
197 return buf;
198}
199EXPORT_SYMBOL(drm_get_connector_name);
200
201char *drm_get_connector_status_name(enum drm_connector_status status)
202{
203 if (status == connector_status_connected)
204 return "connected";
205 else if (status == connector_status_disconnected)
206 return "disconnected";
207 else
208 return "unknown";
209}
210
211/**
212 * drm_mode_object_get - allocate a new identifier
213 * @dev: DRM device
214 * @ptr: object pointer, used to generate unique ID
215 * @type: object type
216 *
217 * LOCKING:
f453ba04
DA		 218 *
219 * Create a unique identifier based on @ptr in @dev's identifier space. Used
220 * for tracking modes, CRTCs and connectors.
221 *
222 * RETURNS:
223 * New unique (relative to other objects in @dev) integer identifier for the
224 * object.
225 */
226static int drm_mode_object_get(struct drm_device *dev,
227 struct drm_mode_object *obj, uint32_t obj_type)
228{
229 int new_id = 0;
230 int ret;
231
f453ba04
DA		 232again:
233 if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) {
234 DRM_ERROR("Ran out memory getting a mode number\n");
235 return -EINVAL;
236 }
237
ad2563c2 238 mutex_lock(&dev->mode_config.idr_mutex);
f453ba04 239 ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id);
ad2563c2 240 mutex_unlock(&dev->mode_config.idr_mutex);
f453ba04
DA		 241 if (ret == -EAGAIN)
242 goto again;
243
244 obj->id = new_id;
245 obj->type = obj_type;
246 return 0;
247}
248
249/**
250 * drm_mode_object_put - free an identifer
251 * @dev: DRM device
252 * @id: ID to free
253 *
254 * LOCKING:
255 * Caller must hold DRM mode_config lock.
256 *
257 * Free @id from @dev's unique identifier pool.
258 */
259static void drm_mode_object_put(struct drm_device *dev,
260 struct drm_mode_object *object)
261{
ad2563c2 262 mutex_lock(&dev->mode_config.idr_mutex);
f453ba04 263 idr_remove(&dev->mode_config.crtc_idr, object->id);
ad2563c2 264 mutex_unlock(&dev->mode_config.idr_mutex);
f453ba04
DA		 265}
266
7a9c9060
DV		 267struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
268 uint32_t id, uint32_t type)
f453ba04 269{
ad2563c2 270 struct drm_mode_object *obj = NULL;
f453ba04 271
ad2563c2 272 mutex_lock(&dev->mode_config.idr_mutex);
f453ba04
DA		 273 obj = idr_find(&dev->mode_config.crtc_idr, id);
274 if (!obj || (obj->type != type) || (obj->id != id))
ad2563c2
JB		 275 obj = NULL;
276 mutex_unlock(&dev->mode_config.idr_mutex);
f453ba04
DA		 277
278 return obj;
279}
280EXPORT_SYMBOL(drm_mode_object_find);
281
f453ba04
DA		 282/**
283 * drm_framebuffer_init - initialize a framebuffer
284 * @dev: DRM device
285 *
286 * LOCKING:
287 * Caller must hold mode config lock.
288 *
289 * Allocates an ID for the framebuffer's parent mode object, sets its mode
290 * functions & device file and adds it to the master fd list.
291 *
292 * RETURNS:
af901ca1 293 * Zero on success, error code on failure.
f453ba04
DA		 294 */
295int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
296 const struct drm_framebuffer_funcs *funcs)
297{
298 int ret;
299
300 ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
301 if (ret) {
302 return ret;
303 }
304
305 fb->dev = dev;
306 fb->funcs = funcs;
307 dev->mode_config.num_fb++;
308 list_add(&fb->head, &dev->mode_config.fb_list);
309
310 return 0;
311}
312EXPORT_SYMBOL(drm_framebuffer_init);
313
314/**
315 * drm_framebuffer_cleanup - remove a framebuffer object
316 * @fb: framebuffer to remove
317 *
318 * LOCKING:
319 * Caller must hold mode config lock.
320 *
321 * Scans all the CRTCs in @dev's mode_config. If they're using @fb, removes
322 * it, setting it to NULL.
323 */
324void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
325{
326 struct drm_device *dev = fb->dev;
327 struct drm_crtc *crtc;
8cf5c917 328 struct drm_plane *plane;
5ef5f72f
DA		 329 struct drm_mode_set set;
330 int ret;
f453ba04
DA		 331
332 /* remove from any CRTC */
333 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
5ef5f72f
DA		 334 if (crtc->fb == fb) {
335 /* should turn off the crtc */
336 memset(&set, 0, sizeof(struct drm_mode_set));
337 set.crtc = crtc;
338 set.fb = NULL;
339 ret = crtc->funcs->set_config(&set);
340 if (ret)
341 DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
342 }
f453ba04
DA		 343 }
344
8cf5c917
JB		 345 list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
346 if (plane->fb == fb) {
347 /* should turn off the crtc */
348 ret = plane->funcs->disable_plane(plane);
349 if (ret)
350 DRM_ERROR("failed to disable plane with busy fb\n");
351 }
352 }
353
f453ba04
DA		 354 drm_mode_object_put(dev, &fb->base);
355 list_del(&fb->head);
356 dev->mode_config.num_fb--;
357}
358EXPORT_SYMBOL(drm_framebuffer_cleanup);
359
360/**
361 * drm_crtc_init - Initialise a new CRTC object
362 * @dev: DRM device
363 * @crtc: CRTC object to init
364 * @funcs: callbacks for the new CRTC
365 *
366 * LOCKING:
367 * Caller must hold mode config lock.
368 *
369 * Inits a new object created as base part of an driver crtc object.
370 */
371void drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
372 const struct drm_crtc_funcs *funcs)
373{
374 crtc->dev = dev;
375 crtc->funcs = funcs;
376
377 mutex_lock(&dev->mode_config.mutex);
378 drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
379
380 list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
381 dev->mode_config.num_crtc++;
382 mutex_unlock(&dev->mode_config.mutex);
383}
384EXPORT_SYMBOL(drm_crtc_init);
385
386/**
387 * drm_crtc_cleanup - Cleans up the core crtc usage.
388 * @crtc: CRTC to cleanup
389 *
390 * LOCKING:
391 * Caller must hold mode config lock.
392 *
393 * Cleanup @crtc. Removes from drm modesetting space
394 * does NOT free object, caller does that.
395 */
396void drm_crtc_cleanup(struct drm_crtc *crtc)
397{
398 struct drm_device *dev = crtc->dev;
399
400 if (crtc->gamma_store) {
401 kfree(crtc->gamma_store);
402 crtc->gamma_store = NULL;
403 }
404
405 drm_mode_object_put(dev, &crtc->base);
406 list_del(&crtc->head);
407 dev->mode_config.num_crtc--;
408}
409EXPORT_SYMBOL(drm_crtc_cleanup);
410
411/**
412 * drm_mode_probed_add - add a mode to a connector's probed mode list
413 * @connector: connector the new mode
414 * @mode: mode data
415 *
416 * LOCKING:
417 * Caller must hold mode config lock.
418 *
419 * Add @mode to @connector's mode list for later use.
420 */
421void drm_mode_probed_add(struct drm_connector *connector,
422 struct drm_display_mode *mode)
423{
424 list_add(&mode->head, &connector->probed_modes);
425}
426EXPORT_SYMBOL(drm_mode_probed_add);
427
428/**
429 * drm_mode_remove - remove and free a mode
430 * @connector: connector list to modify
431 * @mode: mode to remove
432 *
433 * LOCKING:
434 * Caller must hold mode config lock.
435 *
436 * Remove @mode from @connector's mode list, then free it.
437 */
438void drm_mode_remove(struct drm_connector *connector,
439 struct drm_display_mode *mode)
440{
441 list_del(&mode->head);
442 kfree(mode);
443}
444EXPORT_SYMBOL(drm_mode_remove);
445
446/**
447 * drm_connector_init - Init a preallocated connector
448 * @dev: DRM device
449 * @connector: the connector to init
450 * @funcs: callbacks for this connector
451 * @name: user visible name of the connector
452 *
453 * LOCKING:
454 * Caller must hold @dev's mode_config lock.
455 *
456 * Initialises a preallocated connector. Connectors should be
457 * subclassed as part of driver connector objects.
458 */
459void drm_connector_init(struct drm_device *dev,
460 struct drm_connector *connector,
461 const struct drm_connector_funcs *funcs,
462 int connector_type)
463{
464 mutex_lock(&dev->mode_config.mutex);
465
466 connector->dev = dev;
467 connector->funcs = funcs;
468 drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
469 connector->connector_type = connector_type;
470 connector->connector_type_id =
471 ++drm_connector_enum_list[connector_type].count; /* TODO */
472 INIT_LIST_HEAD(&connector->user_modes);
473 INIT_LIST_HEAD(&connector->probed_modes);
474 INIT_LIST_HEAD(&connector->modes);
475 connector->edid_blob_ptr = NULL;
476
477 list_add_tail(&connector->head, &dev->mode_config.connector_list);
478 dev->mode_config.num_connector++;
479
a7331e5c
TH		 480 if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL)
481 drm_connector_attach_property(connector,
482 dev->mode_config.edid_property,
483 0);
f453ba04
DA		 484
485 drm_connector_attach_property(connector,
486 dev->mode_config.dpms_property, 0);
487
488 mutex_unlock(&dev->mode_config.mutex);
489}
490EXPORT_SYMBOL(drm_connector_init);
491
492/**
493 * drm_connector_cleanup - cleans up an initialised connector
494 * @connector: connector to cleanup
495 *
496 * LOCKING:
497 * Caller must hold @dev's mode_config lock.
498 *
499 * Cleans up the connector but doesn't free the object.
500 */
501void drm_connector_cleanup(struct drm_connector *connector)
502{
503 struct drm_device *dev = connector->dev;
504 struct drm_display_mode *mode, *t;
505
506 list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
507 drm_mode_remove(connector, mode);
508
509 list_for_each_entry_safe(mode, t, &connector->modes, head)
510 drm_mode_remove(connector, mode);
511
512 list_for_each_entry_safe(mode, t, &connector->user_modes, head)
513 drm_mode_remove(connector, mode);
514
515 mutex_lock(&dev->mode_config.mutex);
516 drm_mode_object_put(dev, &connector->base);
517 list_del(&connector->head);
6380c509 518 dev->mode_config.num_connector--;
f453ba04
DA		 519 mutex_unlock(&dev->mode_config.mutex);
520}
521EXPORT_SYMBOL(drm_connector_cleanup);
522
523void drm_encoder_init(struct drm_device *dev,
524 struct drm_encoder *encoder,
525 const struct drm_encoder_funcs *funcs,
526 int encoder_type)
527{
528 mutex_lock(&dev->mode_config.mutex);
529
530 encoder->dev = dev;
531
532 drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
533 encoder->encoder_type = encoder_type;
534 encoder->funcs = funcs;
535
536 list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
537 dev->mode_config.num_encoder++;
538
539 mutex_unlock(&dev->mode_config.mutex);
540}
541EXPORT_SYMBOL(drm_encoder_init);
542
543void drm_encoder_cleanup(struct drm_encoder *encoder)
544{
545 struct drm_device *dev = encoder->dev;
546 mutex_lock(&dev->mode_config.mutex);
547 drm_mode_object_put(dev, &encoder->base);
548 list_del(&encoder->head);
6380c509 549 dev->mode_config.num_encoder--;
f453ba04
DA		 550 mutex_unlock(&dev->mode_config.mutex);
551}
552EXPORT_SYMBOL(drm_encoder_cleanup);
553
8cf5c917
JB		 554int drm_plane_init(struct drm_device *dev, struct drm_plane *plane,
555 unsigned long possible_crtcs,
556 const struct drm_plane_funcs *funcs,
557 uint32_t *formats, uint32_t format_count)
558{
559 mutex_lock(&dev->mode_config.mutex);
560
561 plane->dev = dev;
562 drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE);
563 plane->funcs = funcs;
564 plane->format_types = kmalloc(sizeof(uint32_t) * format_count,
565 GFP_KERNEL);
566 if (!plane->format_types) {
567 DRM_DEBUG_KMS("out of memory when allocating plane\n");
568 drm_mode_object_put(dev, &plane->base);
569 return -ENOMEM;
570 }
571
308e5bcb 572 memcpy(plane->format_types, formats, format_count * sizeof(uint32_t));
8cf5c917
JB		 573 plane->format_count = format_count;
574 plane->possible_crtcs = possible_crtcs;
575
576 list_add_tail(&plane->head, &dev->mode_config.plane_list);
577 dev->mode_config.num_plane++;
578
579 mutex_unlock(&dev->mode_config.mutex);
580
581 return 0;
582}
583EXPORT_SYMBOL(drm_plane_init);
584
585void drm_plane_cleanup(struct drm_plane *plane)
586{
587 struct drm_device *dev = plane->dev;
588
589 mutex_lock(&dev->mode_config.mutex);
590 kfree(plane->format_types);
591 drm_mode_object_put(dev, &plane->base);
592 list_del(&plane->head);
593 dev->mode_config.num_plane--;
594 mutex_unlock(&dev->mode_config.mutex);
595}
596EXPORT_SYMBOL(drm_plane_cleanup);
597
f453ba04
DA		 598/**
599 * drm_mode_create - create a new display mode
600 * @dev: DRM device
601 *
602 * LOCKING:
603 * Caller must hold DRM mode_config lock.
604 *
605 * Create a new drm_display_mode, give it an ID, and return it.
606 *
607 * RETURNS:
608 * Pointer to new mode on success, NULL on error.
609 */
610struct drm_display_mode *drm_mode_create(struct drm_device *dev)
611{
612 struct drm_display_mode *nmode;
613
614 nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
615 if (!nmode)
616 return NULL;
617
618 drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE);
619 return nmode;
620}
621EXPORT_SYMBOL(drm_mode_create);
622
623/**
624 * drm_mode_destroy - remove a mode
625 * @dev: DRM device
626 * @mode: mode to remove
627 *
628 * LOCKING:
629 * Caller must hold mode config lock.
630 *
631 * Free @mode's unique identifier, then free it.
632 */
633void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
634{
635 drm_mode_object_put(dev, &mode->base);
636
637 kfree(mode);
638}
639EXPORT_SYMBOL(drm_mode_destroy);
640
641static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
642{
643 struct drm_property *edid;
644 struct drm_property *dpms;
645 int i;
646
647 /*
648 * Standard properties (apply to all connectors)
649 */
650 edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
651 DRM_MODE_PROP_IMMUTABLE,
652 "EDID", 0);
653 dev->mode_config.edid_property = edid;
654
655 dpms = drm_property_create(dev, DRM_MODE_PROP_ENUM,
656 "DPMS", ARRAY_SIZE(drm_dpms_enum_list));
657 for (i = 0; i < ARRAY_SIZE(drm_dpms_enum_list); i++)
658 drm_property_add_enum(dpms, i, drm_dpms_enum_list[i].type,
659 drm_dpms_enum_list[i].name);
660 dev->mode_config.dpms_property = dpms;
661
662 return 0;
663}
664
665/**
666 * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
667 * @dev: DRM device
668 *
669 * Called by a driver the first time a DVI-I connector is made.
670 */
671int drm_mode_create_dvi_i_properties(struct drm_device *dev)
672{
673 struct drm_property *dvi_i_selector;
674 struct drm_property *dvi_i_subconnector;
675 int i;
676
677 if (dev->mode_config.dvi_i_select_subconnector_property)
678 return 0;
679
680 dvi_i_selector =
681 drm_property_create(dev, DRM_MODE_PROP_ENUM,
682 "select subconnector",
683 ARRAY_SIZE(drm_dvi_i_select_enum_list));
684 for (i = 0; i < ARRAY_SIZE(drm_dvi_i_select_enum_list); i++)
685 drm_property_add_enum(dvi_i_selector, i,
686 drm_dvi_i_select_enum_list[i].type,
687 drm_dvi_i_select_enum_list[i].name);
688 dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
689
690 dvi_i_subconnector =
691 drm_property_create(dev, DRM_MODE_PROP_ENUM |
692 DRM_MODE_PROP_IMMUTABLE,
693 "subconnector",
694 ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
695 for (i = 0; i < ARRAY_SIZE(drm_dvi_i_subconnector_enum_list); i++)
696 drm_property_add_enum(dvi_i_subconnector, i,
697 drm_dvi_i_subconnector_enum_list[i].type,
698 drm_dvi_i_subconnector_enum_list[i].name);
699 dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
700
701 return 0;
702}
703EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
704
705/**
706 * drm_create_tv_properties - create TV specific connector properties
707 * @dev: DRM device
708 * @num_modes: number of different TV formats (modes) supported
709 * @modes: array of pointers to strings containing name of each format
710 *
711 * Called by a driver's TV initialization routine, this function creates
712 * the TV specific connector properties for a given device. Caller is
713 * responsible for allocating a list of format names and passing them to
714 * this routine.
715 */
716int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
717 char *modes[])
718{
719 struct drm_property *tv_selector;
720 struct drm_property *tv_subconnector;
721 int i;
722
723 if (dev->mode_config.tv_select_subconnector_property)
724 return 0;
725
726 /*
727 * Basic connector properties
728 */
729 tv_selector = drm_property_create(dev, DRM_MODE_PROP_ENUM,
730 "select subconnector",
731 ARRAY_SIZE(drm_tv_select_enum_list));
732 for (i = 0; i < ARRAY_SIZE(drm_tv_select_enum_list); i++)
733 drm_property_add_enum(tv_selector, i,
734 drm_tv_select_enum_list[i].type,
735 drm_tv_select_enum_list[i].name);
736 dev->mode_config.tv_select_subconnector_property = tv_selector;
737
738 tv_subconnector =
739 drm_property_create(dev, DRM_MODE_PROP_ENUM |
740 DRM_MODE_PROP_IMMUTABLE, "subconnector",
741 ARRAY_SIZE(drm_tv_subconnector_enum_list));
742 for (i = 0; i < ARRAY_SIZE(drm_tv_subconnector_enum_list); i++)
743 drm_property_add_enum(tv_subconnector, i,
744 drm_tv_subconnector_enum_list[i].type,
745 drm_tv_subconnector_enum_list[i].name);
746 dev->mode_config.tv_subconnector_property = tv_subconnector;
747
748 /*
749 * Other, TV specific properties: margins & TV modes.
750 */
751 dev->mode_config.tv_left_margin_property =
752 drm_property_create(dev, DRM_MODE_PROP_RANGE,
753 "left margin", 2);
754 dev->mode_config.tv_left_margin_property->values[0] = 0;
755 dev->mode_config.tv_left_margin_property->values[1] = 100;
756
757 dev->mode_config.tv_right_margin_property =
758 drm_property_create(dev, DRM_MODE_PROP_RANGE,
759 "right margin", 2);
760 dev->mode_config.tv_right_margin_property->values[0] = 0;
761 dev->mode_config.tv_right_margin_property->values[1] = 100;
762
763 dev->mode_config.tv_top_margin_property =
764 drm_property_create(dev, DRM_MODE_PROP_RANGE,
765 "top margin", 2);
766 dev->mode_config.tv_top_margin_property->values[0] = 0;
767 dev->mode_config.tv_top_margin_property->values[1] = 100;
768
769 dev->mode_config.tv_bottom_margin_property =
770 drm_property_create(dev, DRM_MODE_PROP_RANGE,
771 "bottom margin", 2);
772 dev->mode_config.tv_bottom_margin_property->values[0] = 0;
773 dev->mode_config.tv_bottom_margin_property->values[1] = 100;
774
775 dev->mode_config.tv_mode_property =
776 drm_property_create(dev, DRM_MODE_PROP_ENUM,
777 "mode", num_modes);
778 for (i = 0; i < num_modes; i++)
779 drm_property_add_enum(dev->mode_config.tv_mode_property, i,
780 i, modes[i]);
781
b6b7902e
FJ		 782 dev->mode_config.tv_brightness_property =
783 drm_property_create(dev, DRM_MODE_PROP_RANGE,
784 "brightness", 2);
785 dev->mode_config.tv_brightness_property->values[0] = 0;
786 dev->mode_config.tv_brightness_property->values[1] = 100;
787
788 dev->mode_config.tv_contrast_property =
789 drm_property_create(dev, DRM_MODE_PROP_RANGE,
790 "contrast", 2);
791 dev->mode_config.tv_contrast_property->values[0] = 0;
792 dev->mode_config.tv_contrast_property->values[1] = 100;
793
794 dev->mode_config.tv_flicker_reduction_property =
795 drm_property_create(dev, DRM_MODE_PROP_RANGE,
796 "flicker reduction", 2);
797 dev->mode_config.tv_flicker_reduction_property->values[0] = 0;
798 dev->mode_config.tv_flicker_reduction_property->values[1] = 100;
799
a75f0236
FJ		 800 dev->mode_config.tv_overscan_property =
801 drm_property_create(dev, DRM_MODE_PROP_RANGE,
802 "overscan", 2);
803 dev->mode_config.tv_overscan_property->values[0] = 0;
804 dev->mode_config.tv_overscan_property->values[1] = 100;
805
806 dev->mode_config.tv_saturation_property =
807 drm_property_create(dev, DRM_MODE_PROP_RANGE,
808 "saturation", 2);
809 dev->mode_config.tv_saturation_property->values[0] = 0;
810 dev->mode_config.tv_saturation_property->values[1] = 100;
811
812 dev->mode_config.tv_hue_property =
813 drm_property_create(dev, DRM_MODE_PROP_RANGE,
814 "hue", 2);
815 dev->mode_config.tv_hue_property->values[0] = 0;
816 dev->mode_config.tv_hue_property->values[1] = 100;
817
f453ba04
DA		 818 return 0;
819}
820EXPORT_SYMBOL(drm_mode_create_tv_properties);
821
822/**
823 * drm_mode_create_scaling_mode_property - create scaling mode property
824 * @dev: DRM device
825 *
826 * Called by a driver the first time it's needed, must be attached to desired
827 * connectors.
828 */
829int drm_mode_create_scaling_mode_property(struct drm_device *dev)
830{
831 struct drm_property *scaling_mode;
832 int i;
833
834 if (dev->mode_config.scaling_mode_property)
835 return 0;
836
837 scaling_mode =
838 drm_property_create(dev, DRM_MODE_PROP_ENUM, "scaling mode",
839 ARRAY_SIZE(drm_scaling_mode_enum_list));
840 for (i = 0; i < ARRAY_SIZE(drm_scaling_mode_enum_list); i++)
841 drm_property_add_enum(scaling_mode, i,
842 drm_scaling_mode_enum_list[i].type,
843 drm_scaling_mode_enum_list[i].name);
844
845 dev->mode_config.scaling_mode_property = scaling_mode;
846
847 return 0;
848}
849EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
850
851/**
852 * drm_mode_create_dithering_property - create dithering property
853 * @dev: DRM device
854 *
855 * Called by a driver the first time it's needed, must be attached to desired
856 * connectors.
857 */
858int drm_mode_create_dithering_property(struct drm_device *dev)
859{
860 struct drm_property *dithering_mode;
861 int i;
862
863 if (dev->mode_config.dithering_mode_property)
864 return 0;
865
866 dithering_mode =
867 drm_property_create(dev, DRM_MODE_PROP_ENUM, "dithering",
868 ARRAY_SIZE(drm_dithering_mode_enum_list));
869 for (i = 0; i < ARRAY_SIZE(drm_dithering_mode_enum_list); i++)
870 drm_property_add_enum(dithering_mode, i,
871 drm_dithering_mode_enum_list[i].type,
872 drm_dithering_mode_enum_list[i].name);
873 dev->mode_config.dithering_mode_property = dithering_mode;
874
875 return 0;
876}
877EXPORT_SYMBOL(drm_mode_create_dithering_property);
878
884840aa
JB		 879/**
880 * drm_mode_create_dirty_property - create dirty property
881 * @dev: DRM device
882 *
883 * Called by a driver the first time it's needed, must be attached to desired
884 * connectors.
885 */
886int drm_mode_create_dirty_info_property(struct drm_device *dev)
887{
888 struct drm_property *dirty_info;
889 int i;
890
891 if (dev->mode_config.dirty_info_property)
892 return 0;
893
894 dirty_info =
895 drm_property_create(dev, DRM_MODE_PROP_ENUM |
896 DRM_MODE_PROP_IMMUTABLE,
897 "dirty",
898 ARRAY_SIZE(drm_dirty_info_enum_list));
899 for (i = 0; i < ARRAY_SIZE(drm_dirty_info_enum_list); i++)
900 drm_property_add_enum(dirty_info, i,
901 drm_dirty_info_enum_list[i].type,
902 drm_dirty_info_enum_list[i].name);
903 dev->mode_config.dirty_info_property = dirty_info;
904
905 return 0;
906}
907EXPORT_SYMBOL(drm_mode_create_dirty_info_property);
908
f453ba04
DA		 909/**
910 * drm_mode_config_init - initialize DRM mode_configuration structure
911 * @dev: DRM device
912 *
913 * LOCKING:
914 * None, should happen single threaded at init time.
915 *
916 * Initialize @dev's mode_config structure, used for tracking the graphics
917 * configuration of @dev.
918 */
919void drm_mode_config_init(struct drm_device *dev)
920{
921 mutex_init(&dev->mode_config.mutex);
ad2563c2 922 mutex_init(&dev->mode_config.idr_mutex);
f453ba04 923 INIT_LIST_HEAD(&dev->mode_config.fb_list);
f453ba04
DA		 924 INIT_LIST_HEAD(&dev->mode_config.crtc_list);
925 INIT_LIST_HEAD(&dev->mode_config.connector_list);
926 INIT_LIST_HEAD(&dev->mode_config.encoder_list);
927 INIT_LIST_HEAD(&dev->mode_config.property_list);
928 INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
8cf5c917 929 INIT_LIST_HEAD(&dev->mode_config.plane_list);
f453ba04
DA		 930 idr_init(&dev->mode_config.crtc_idr);
931
932 mutex_lock(&dev->mode_config.mutex);
933 drm_mode_create_standard_connector_properties(dev);
934 mutex_unlock(&dev->mode_config.mutex);
935
936 /* Just to be sure */
937 dev->mode_config.num_fb = 0;
938 dev->mode_config.num_connector = 0;
939 dev->mode_config.num_crtc = 0;
940 dev->mode_config.num_encoder = 0;
f453ba04
DA		 941}
942EXPORT_SYMBOL(drm_mode_config_init);
943
944int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
945{
946 uint32_t total_objects = 0;
947
948 total_objects += dev->mode_config.num_crtc;
949 total_objects += dev->mode_config.num_connector;
950 total_objects += dev->mode_config.num_encoder;
951
f453ba04
DA		 952 group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
953 if (!group->id_list)
954 return -ENOMEM;
955
956 group->num_crtcs = 0;
957 group->num_connectors = 0;
958 group->num_encoders = 0;
959 return 0;
960}
961
962int drm_mode_group_init_legacy_group(struct drm_device *dev,
963 struct drm_mode_group *group)
964{
965 struct drm_crtc *crtc;
966 struct drm_encoder *encoder;
967 struct drm_connector *connector;
968 int ret;
969
970 if ((ret = drm_mode_group_init(dev, group)))
971 return ret;
972
973 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
974 group->id_list[group->num_crtcs++] = crtc->base.id;
975
976 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
977 group->id_list[group->num_crtcs + group->num_encoders++] =
978 encoder->base.id;
979
980 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
981 group->id_list[group->num_crtcs + group->num_encoders +
982 group->num_connectors++] = connector->base.id;
983
984 return 0;
985}
986
987/**
988 * drm_mode_config_cleanup - free up DRM mode_config info
989 * @dev: DRM device
990 *
991 * LOCKING:
992 * Caller must hold mode config lock.
993 *
994 * Free up all the connectors and CRTCs associated with this DRM device, then
995 * free up the framebuffers and associated buffer objects.
996 *
997 * FIXME: cleanup any dangling user buffer objects too
998 */
999void drm_mode_config_cleanup(struct drm_device *dev)
1000{
1001 struct drm_connector *connector, *ot;
1002 struct drm_crtc *crtc, *ct;
1003 struct drm_encoder *encoder, *enct;
1004 struct drm_framebuffer *fb, *fbt;
1005 struct drm_property *property, *pt;
8cf5c917 1006 struct drm_plane *plane, *plt;
f453ba04
DA		 1007
1008 list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
1009 head) {
1010 encoder->funcs->destroy(encoder);
1011 }
1012
1013 list_for_each_entry_safe(connector, ot,
1014 &dev->mode_config.connector_list, head) {
1015 connector->funcs->destroy(connector);
1016 }
1017
1018 list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
1019 head) {
1020 drm_property_destroy(dev, property);
1021 }
1022
1023 list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
1024 fb->funcs->destroy(fb);
1025 }
1026
1027 list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
1028 crtc->funcs->destroy(crtc);
1029 }
1030
8cf5c917
JB		 1031 list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list,
1032 head) {
1033 plane->funcs->destroy(plane);
1034 }
f453ba04
DA		 1035}
1036EXPORT_SYMBOL(drm_mode_config_cleanup);
1037
f453ba04
DA		 1038/**
1039 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
1040 * @out: drm_mode_modeinfo struct to return to the user
1041 * @in: drm_display_mode to use
1042 *
1043 * LOCKING:
1044 * None.
1045 *
1046 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
1047 * the user.
1048 */
1049void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
1050 struct drm_display_mode *in)
1051{
1052 out->clock = in->clock;
1053 out->hdisplay = in->hdisplay;
1054 out->hsync_start = in->hsync_start;
1055 out->hsync_end = in->hsync_end;
1056 out->htotal = in->htotal;
1057 out->hskew = in->hskew;
1058 out->vdisplay = in->vdisplay;
1059 out->vsync_start = in->vsync_start;
1060 out->vsync_end = in->vsync_end;
1061 out->vtotal = in->vtotal;
1062 out->vscan = in->vscan;
1063 out->vrefresh = in->vrefresh;
1064 out->flags = in->flags;
1065 out->type = in->type;
1066 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1067 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1068}
1069
1070/**
1071 * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
1072 * @out: drm_display_mode to return to the user
1073 * @in: drm_mode_modeinfo to use
1074 *
1075 * LOCKING:
1076 * None.
1077 *
1078 * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
1079 * the caller.
1080 */
1081void drm_crtc_convert_umode(struct drm_display_mode *out,
1082 struct drm_mode_modeinfo *in)
1083{
1084 out->clock = in->clock;
1085 out->hdisplay = in->hdisplay;
1086 out->hsync_start = in->hsync_start;
1087 out->hsync_end = in->hsync_end;
1088 out->htotal = in->htotal;
1089 out->hskew = in->hskew;
1090 out->vdisplay = in->vdisplay;
1091 out->vsync_start = in->vsync_start;
1092 out->vsync_end = in->vsync_end;
1093 out->vtotal = in->vtotal;
1094 out->vscan = in->vscan;
1095 out->vrefresh = in->vrefresh;
1096 out->flags = in->flags;
1097 out->type = in->type;
1098 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1099 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1100}
1101
1102/**
1103 * drm_mode_getresources - get graphics configuration
1104 * @inode: inode from the ioctl
1105 * @filp: file * from the ioctl
1106 * @cmd: cmd from ioctl
1107 * @arg: arg from ioctl
1108 *
1109 * LOCKING:
1110 * Takes mode config lock.
1111 *
1112 * Construct a set of configuration description structures and return
1113 * them to the user, including CRTC, connector and framebuffer configuration.
1114 *
1115 * Called by the user via ioctl.
1116 *
1117 * RETURNS:
1118 * Zero on success, errno on failure.
1119 */
1120int drm_mode_getresources(struct drm_device *dev, void *data,
1121 struct drm_file *file_priv)
1122{
1123 struct drm_mode_card_res *card_res = data;
1124 struct list_head *lh;
1125 struct drm_framebuffer *fb;
1126 struct drm_connector *connector;
1127 struct drm_crtc *crtc;
1128 struct drm_encoder *encoder;
1129 int ret = 0;
1130 int connector_count = 0;
1131 int crtc_count = 0;
1132 int fb_count = 0;
1133 int encoder_count = 0;
1134 int copied = 0, i;
1135 uint32_t __user *fb_id;
1136 uint32_t __user *crtc_id;
1137 uint32_t __user *connector_id;
1138 uint32_t __user *encoder_id;
1139 struct drm_mode_group *mode_group;
1140
fb3b06c8
DA		 1141 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1142 return -EINVAL;
1143
f453ba04
DA		 1144 mutex_lock(&dev->mode_config.mutex);
1145
1146 /*
1147 * For the non-control nodes we need to limit the list of resources
1148 * by IDs in the group list for this node
1149 */
1150 list_for_each(lh, &file_priv->fbs)
1151 fb_count++;
1152
1153 mode_group = &file_priv->master->minor->mode_group;
1154 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1155
1156 list_for_each(lh, &dev->mode_config.crtc_list)
1157 crtc_count++;
1158
1159 list_for_each(lh, &dev->mode_config.connector_list)
1160 connector_count++;
1161
1162 list_for_each(lh, &dev->mode_config.encoder_list)
1163 encoder_count++;
1164 } else {
1165
1166 crtc_count = mode_group->num_crtcs;
1167 connector_count = mode_group->num_connectors;
1168 encoder_count = mode_group->num_encoders;
1169 }
1170
1171 card_res->max_height = dev->mode_config.max_height;
1172 card_res->min_height = dev->mode_config.min_height;
1173 card_res->max_width = dev->mode_config.max_width;
1174 card_res->min_width = dev->mode_config.min_width;
1175
1176 /* handle this in 4 parts */
1177 /* FBs */
1178 if (card_res->count_fbs >= fb_count) {
1179 copied = 0;
1180 fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
618c75e4 1181 list_for_each_entry(fb, &file_priv->fbs, filp_head) {
f453ba04
DA		 1182 if (put_user(fb->base.id, fb_id + copied)) {
1183 ret = -EFAULT;
1184 goto out;
1185 }
1186 copied++;
1187 }
1188 }
1189 card_res->count_fbs = fb_count;
1190
1191 /* CRTCs */
1192 if (card_res->count_crtcs >= crtc_count) {
1193 copied = 0;
1194 crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
1195 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1196 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
1197 head) {
9440106b 1198 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
f453ba04
DA		 1199 if (put_user(crtc->base.id, crtc_id + copied)) {
1200 ret = -EFAULT;
1201 goto out;
1202 }
1203 copied++;
1204 }
1205 } else {
1206 for (i = 0; i < mode_group->num_crtcs; i++) {
1207 if (put_user(mode_group->id_list[i],
1208 crtc_id + copied)) {
1209 ret = -EFAULT;
1210 goto out;
1211 }
1212 copied++;
1213 }
1214 }
1215 }
1216 card_res->count_crtcs = crtc_count;
1217
1218 /* Encoders */
1219 if (card_res->count_encoders >= encoder_count) {
1220 copied = 0;
1221 encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
1222 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1223 list_for_each_entry(encoder,
1224 &dev->mode_config.encoder_list,
1225 head) {
9440106b
JG		 1226 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id,
1227 drm_get_encoder_name(encoder));
f453ba04
DA		 1228 if (put_user(encoder->base.id, encoder_id +
1229 copied)) {
1230 ret = -EFAULT;
1231 goto out;
1232 }
1233 copied++;
1234 }
1235 } else {
1236 for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
1237 if (put_user(mode_group->id_list[i],
1238 encoder_id + copied)) {
1239 ret = -EFAULT;
1240 goto out;
1241 }
1242 copied++;
1243 }
1244
1245 }
1246 }
1247 card_res->count_encoders = encoder_count;
1248
1249 /* Connectors */
1250 if (card_res->count_connectors >= connector_count) {
1251 copied = 0;
1252 connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
1253 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1254 list_for_each_entry(connector,
1255 &dev->mode_config.connector_list,
1256 head) {
9440106b
JG		 1257 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1258 connector->base.id,
1259 drm_get_connector_name(connector));
f453ba04
DA		 1260 if (put_user(connector->base.id,
1261 connector_id + copied)) {
1262 ret = -EFAULT;
1263 goto out;
1264 }
1265 copied++;
1266 }
1267 } else {
1268 int start = mode_group->num_crtcs +
1269 mode_group->num_encoders;
1270 for (i = start; i < start + mode_group->num_connectors; i++) {
1271 if (put_user(mode_group->id_list[i],
1272 connector_id + copied)) {
1273 ret = -EFAULT;
1274 goto out;
1275 }
1276 copied++;
1277 }
1278 }
1279 }
1280 card_res->count_connectors = connector_count;
1281
9440106b 1282 DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs,
f453ba04
DA		 1283 card_res->count_connectors, card_res->count_encoders);
1284
1285out:
1286 mutex_unlock(&dev->mode_config.mutex);
1287 return ret;
1288}
1289
1290/**
1291 * drm_mode_getcrtc - get CRTC configuration
1292 * @inode: inode from the ioctl
1293 * @filp: file * from the ioctl
1294 * @cmd: cmd from ioctl
1295 * @arg: arg from ioctl
1296 *
1297 * LOCKING:
1298 * Caller? (FIXME)
1299 *
1300 * Construct a CRTC configuration structure to return to the user.
1301 *
1302 * Called by the user via ioctl.
1303 *
1304 * RETURNS:
1305 * Zero on success, errno on failure.
1306 */
1307int drm_mode_getcrtc(struct drm_device *dev,
1308 void *data, struct drm_file *file_priv)
1309{
1310 struct drm_mode_crtc *crtc_resp = data;
1311 struct drm_crtc *crtc;
1312 struct drm_mode_object *obj;
1313 int ret = 0;
1314
fb3b06c8
DA		 1315 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1316 return -EINVAL;
1317
f453ba04
DA		 1318 mutex_lock(&dev->mode_config.mutex);
1319
1320 obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
1321 DRM_MODE_OBJECT_CRTC);
1322 if (!obj) {
1323 ret = -EINVAL;
1324 goto out;
1325 }
1326 crtc = obj_to_crtc(obj);
1327
1328 crtc_resp->x = crtc->x;
1329 crtc_resp->y = crtc->y;
1330 crtc_resp->gamma_size = crtc->gamma_size;
1331 if (crtc->fb)
1332 crtc_resp->fb_id = crtc->fb->base.id;
1333 else
1334 crtc_resp->fb_id = 0;
1335
1336 if (crtc->enabled) {
1337
1338 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
1339 crtc_resp->mode_valid = 1;
1340
1341 } else {
1342 crtc_resp->mode_valid = 0;
1343 }
1344
1345out:
1346 mutex_unlock(&dev->mode_config.mutex);
1347 return ret;
1348}
1349
1350/**
1351 * drm_mode_getconnector - get connector configuration
1352 * @inode: inode from the ioctl
1353 * @filp: file * from the ioctl
1354 * @cmd: cmd from ioctl
1355 * @arg: arg from ioctl
1356 *
1357 * LOCKING:
1358 * Caller? (FIXME)
1359 *
1360 * Construct a connector configuration structure to return to the user.
1361 *
1362 * Called by the user via ioctl.
1363 *
1364 * RETURNS:
1365 * Zero on success, errno on failure.
1366 */
1367int drm_mode_getconnector(struct drm_device *dev, void *data,
1368 struct drm_file *file_priv)
1369{
1370 struct drm_mode_get_connector *out_resp = data;
1371 struct drm_mode_object *obj;
1372 struct drm_connector *connector;
1373 struct drm_display_mode *mode;
1374 int mode_count = 0;
1375 int props_count = 0;
1376 int encoders_count = 0;
1377 int ret = 0;
1378 int copied = 0;
1379 int i;
1380 struct drm_mode_modeinfo u_mode;
1381 struct drm_mode_modeinfo __user *mode_ptr;
1382 uint32_t __user *prop_ptr;
1383 uint64_t __user *prop_values;
1384 uint32_t __user *encoder_ptr;
1385
fb3b06c8
DA		 1386 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1387 return -EINVAL;
1388
f453ba04
DA		 1389 memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
1390
9440106b 1391 DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id);
f453ba04
DA		 1392
1393 mutex_lock(&dev->mode_config.mutex);
1394
1395 obj = drm_mode_object_find(dev, out_resp->connector_id,
1396 DRM_MODE_OBJECT_CONNECTOR);
1397 if (!obj) {
1398 ret = -EINVAL;
1399 goto out;
1400 }
1401 connector = obj_to_connector(obj);
1402
1403 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1404 if (connector->property_ids[i] != 0) {
1405 props_count++;
1406 }
1407 }
1408
1409 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1410 if (connector->encoder_ids[i] != 0) {
1411 encoders_count++;
1412 }
1413 }
1414
1415 if (out_resp->count_modes == 0) {
1416 connector->funcs->fill_modes(connector,
1417 dev->mode_config.max_width,
1418 dev->mode_config.max_height);
1419 }
1420
1421 /* delayed so we get modes regardless of pre-fill_modes state */
1422 list_for_each_entry(mode, &connector->modes, head)
1423 mode_count++;
1424
1425 out_resp->connector_id = connector->base.id;
1426 out_resp->connector_type = connector->connector_type;
1427 out_resp->connector_type_id = connector->connector_type_id;
1428 out_resp->mm_width = connector->display_info.width_mm;
1429 out_resp->mm_height = connector->display_info.height_mm;
1430 out_resp->subpixel = connector->display_info.subpixel_order;
1431 out_resp->connection = connector->status;
1432 if (connector->encoder)
1433 out_resp->encoder_id = connector->encoder->base.id;
1434 else
1435 out_resp->encoder_id = 0;
1436
1437 /*
1438 * This ioctl is called twice, once to determine how much space is
1439 * needed, and the 2nd time to fill it.
1440 */
1441 if ((out_resp->count_modes >= mode_count) && mode_count) {
1442 copied = 0;
1443 mode_ptr = (struct drm_mode_modeinfo *)(unsigned long)out_resp->modes_ptr;
1444 list_for_each_entry(mode, &connector->modes, head) {
1445 drm_crtc_convert_to_umode(&u_mode, mode);
1446 if (copy_to_user(mode_ptr + copied,
1447 &u_mode, sizeof(u_mode))) {
1448 ret = -EFAULT;
1449 goto out;
1450 }
1451 copied++;
1452 }
1453 }
1454 out_resp->count_modes = mode_count;
1455
1456 if ((out_resp->count_props >= props_count) && props_count) {
1457 copied = 0;
1458 prop_ptr = (uint32_t *)(unsigned long)(out_resp->props_ptr);
1459 prop_values = (uint64_t *)(unsigned long)(out_resp->prop_values_ptr);
1460 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1461 if (connector->property_ids[i] != 0) {
1462 if (put_user(connector->property_ids[i],
1463 prop_ptr + copied)) {
1464 ret = -EFAULT;
1465 goto out;
1466 }
1467
1468 if (put_user(connector->property_values[i],
1469 prop_values + copied)) {
1470 ret = -EFAULT;
1471 goto out;
1472 }
1473 copied++;
1474 }
1475 }
1476 }
1477 out_resp->count_props = props_count;
1478
1479 if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
1480 copied = 0;
1481 encoder_ptr = (uint32_t *)(unsigned long)(out_resp->encoders_ptr);
1482 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1483 if (connector->encoder_ids[i] != 0) {
1484 if (put_user(connector->encoder_ids[i],
1485 encoder_ptr + copied)) {
1486 ret = -EFAULT;
1487 goto out;
1488 }
1489 copied++;
1490 }
1491 }
1492 }
1493 out_resp->count_encoders = encoders_count;
1494
1495out:
1496 mutex_unlock(&dev->mode_config.mutex);
1497 return ret;
1498}
1499
1500int drm_mode_getencoder(struct drm_device *dev, void *data,
1501 struct drm_file *file_priv)
1502{
1503 struct drm_mode_get_encoder *enc_resp = data;
1504 struct drm_mode_object *obj;
1505 struct drm_encoder *encoder;
1506 int ret = 0;
1507
fb3b06c8
DA		 1508 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1509 return -EINVAL;
1510
f453ba04
DA		 1511 mutex_lock(&dev->mode_config.mutex);
1512 obj = drm_mode_object_find(dev, enc_resp->encoder_id,
1513 DRM_MODE_OBJECT_ENCODER);
1514 if (!obj) {
1515 ret = -EINVAL;
1516 goto out;
1517 }
1518 encoder = obj_to_encoder(obj);
1519
1520 if (encoder->crtc)
1521 enc_resp->crtc_id = encoder->crtc->base.id;
1522 else
1523 enc_resp->crtc_id = 0;
1524 enc_resp->encoder_type = encoder->encoder_type;
1525 enc_resp->encoder_id = encoder->base.id;
1526 enc_resp->possible_crtcs = encoder->possible_crtcs;
1527 enc_resp->possible_clones = encoder->possible_clones;
1528
1529out:
1530 mutex_unlock(&dev->mode_config.mutex);
1531 return ret;
1532}
1533
8cf5c917
JB		 1534/**
1535 * drm_mode_getplane_res - get plane info
1536 * @dev: DRM device
1537 * @data: ioctl data
1538 * @file_priv: DRM file info
1539 *
1540 * Return an plane count and set of IDs.
1541 */
1542int drm_mode_getplane_res(struct drm_device *dev, void *data,
1543 struct drm_file *file_priv)
1544{
1545 struct drm_mode_get_plane_res *plane_resp = data;
1546 struct drm_mode_config *config;
1547 struct drm_plane *plane;
1548 uint32_t __user *plane_ptr;
1549 int copied = 0, ret = 0;
1550
1551 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1552 return -EINVAL;
1553
1554 mutex_lock(&dev->mode_config.mutex);
1555 config = &dev->mode_config;
1556
1557 /*
1558 * This ioctl is called twice, once to determine how much space is
1559 * needed, and the 2nd time to fill it.
1560 */
1561 if (config->num_plane &&
1562 (plane_resp->count_planes >= config->num_plane)) {
1563 plane_ptr = (uint32_t *)(unsigned long)plane_resp->plane_id_ptr;
1564
1565 list_for_each_entry(plane, &config->plane_list, head) {
1566 if (put_user(plane->base.id, plane_ptr + copied)) {
1567 ret = -EFAULT;
1568 goto out;
1569 }
1570 copied++;
1571 }
1572 }
1573 plane_resp->count_planes = config->num_plane;
1574
1575out:
1576 mutex_unlock(&dev->mode_config.mutex);
1577 return ret;
1578}
1579
1580/**
1581 * drm_mode_getplane - get plane info
1582 * @dev: DRM device
1583 * @data: ioctl data
1584 * @file_priv: DRM file info
1585 *
1586 * Return plane info, including formats supported, gamma size, any
1587 * current fb, etc.
1588 */
1589int drm_mode_getplane(struct drm_device *dev, void *data,
1590 struct drm_file *file_priv)
1591{
1592 struct drm_mode_get_plane *plane_resp = data;
1593 struct drm_mode_object *obj;
1594 struct drm_plane *plane;
1595 uint32_t __user *format_ptr;
1596 int ret = 0;
1597
1598 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1599 return -EINVAL;
1600
1601 mutex_lock(&dev->mode_config.mutex);
1602 obj = drm_mode_object_find(dev, plane_resp->plane_id,
1603 DRM_MODE_OBJECT_PLANE);
1604 if (!obj) {
1605 ret = -ENOENT;
1606 goto out;
1607 }
1608 plane = obj_to_plane(obj);
1609
1610 if (plane->crtc)
1611 plane_resp->crtc_id = plane->crtc->base.id;
1612 else
1613 plane_resp->crtc_id = 0;
1614
1615 if (plane->fb)
1616 plane_resp->fb_id = plane->fb->base.id;
1617 else
1618 plane_resp->fb_id = 0;
1619
1620 plane_resp->plane_id = plane->base.id;
1621 plane_resp->possible_crtcs = plane->possible_crtcs;
1622 plane_resp->gamma_size = plane->gamma_size;
1623
1624 /*
1625 * This ioctl is called twice, once to determine how much space is
1626 * needed, and the 2nd time to fill it.
1627 */
1628 if (plane->format_count &&
1629 (plane_resp->count_format_types >= plane->format_count)) {
1630 format_ptr = (uint32_t *)(unsigned long)plane_resp->format_type_ptr;
1631 if (copy_to_user(format_ptr,
1632 plane->format_types,
1633 sizeof(uint32_t) * plane->format_count)) {
1634 ret = -EFAULT;
1635 goto out;
1636 }
1637 }
1638 plane_resp->count_format_types = plane->format_count;
1639
1640out:
1641 mutex_unlock(&dev->mode_config.mutex);
1642 return ret;
1643}
1644
1645/**
1646 * drm_mode_setplane - set up or tear down an plane
1647 * @dev: DRM device
1648 * @data: ioctl data*
1649 * @file_prive: DRM file info
1650 *
1651 * Set plane info, including placement, fb, scaling, and other factors.
1652 * Or pass a NULL fb to disable.
1653 */
1654int drm_mode_setplane(struct drm_device *dev, void *data,
1655 struct drm_file *file_priv)
1656{
1657 struct drm_mode_set_plane *plane_req = data;
1658 struct drm_mode_object *obj;
1659 struct drm_plane *plane;
1660 struct drm_crtc *crtc;
1661 struct drm_framebuffer *fb;
1662 int ret = 0;
1663
1664 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1665 return -EINVAL;
1666
1667 mutex_lock(&dev->mode_config.mutex);
1668
1669 /*
1670 * First, find the plane, crtc, and fb objects. If not available,
1671 * we don't bother to call the driver.
1672 */
1673 obj = drm_mode_object_find(dev, plane_req->plane_id,
1674 DRM_MODE_OBJECT_PLANE);
1675 if (!obj) {
1676 DRM_DEBUG_KMS("Unknown plane ID %d\n",
1677 plane_req->plane_id);
1678 ret = -ENOENT;
1679 goto out;
1680 }
1681 plane = obj_to_plane(obj);
1682
1683 /* No fb means shut it down */
1684 if (!plane_req->fb_id) {
1685 plane->funcs->disable_plane(plane);
1686 goto out;
1687 }
1688
1689 obj = drm_mode_object_find(dev, plane_req->crtc_id,
1690 DRM_MODE_OBJECT_CRTC);
1691 if (!obj) {
1692 DRM_DEBUG_KMS("Unknown crtc ID %d\n",
1693 plane_req->crtc_id);
1694 ret = -ENOENT;
1695 goto out;
1696 }
1697 crtc = obj_to_crtc(obj);
1698
1699 obj = drm_mode_object_find(dev, plane_req->fb_id,
1700 DRM_MODE_OBJECT_FB);
1701 if (!obj) {
1702 DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
1703 plane_req->fb_id);
1704 ret = -ENOENT;
1705 goto out;
1706 }
1707 fb = obj_to_fb(obj);
1708
1709 ret = plane->funcs->update_plane(plane, crtc, fb,
1710 plane_req->crtc_x, plane_req->crtc_y,
1711 plane_req->crtc_w, plane_req->crtc_h,
1712 plane_req->src_x, plane_req->src_y,
1713 plane_req->src_w, plane_req->src_h);
1714 if (!ret) {
1715 plane->crtc = crtc;
1716 plane->fb = fb;
1717 }
1718
1719out:
1720 mutex_unlock(&dev->mode_config.mutex);
1721
1722 return ret;
1723}
1724
f453ba04
DA		 1725/**
1726 * drm_mode_setcrtc - set CRTC configuration
1727 * @inode: inode from the ioctl
1728 * @filp: file * from the ioctl
1729 * @cmd: cmd from ioctl
1730 * @arg: arg from ioctl
1731 *
1732 * LOCKING:
1733 * Caller? (FIXME)
1734 *
1735 * Build a new CRTC configuration based on user request.
1736 *
1737 * Called by the user via ioctl.
1738 *
1739 * RETURNS:
1740 * Zero on success, errno on failure.
1741 */
1742int drm_mode_setcrtc(struct drm_device *dev, void *data,
1743 struct drm_file *file_priv)
1744{
1745 struct drm_mode_config *config = &dev->mode_config;
1746 struct drm_mode_crtc *crtc_req = data;
1747 struct drm_mode_object *obj;
1748 struct drm_crtc *crtc, *crtcfb;
1749 struct drm_connector **connector_set = NULL, *connector;
1750 struct drm_framebuffer *fb = NULL;
1751 struct drm_display_mode *mode = NULL;
1752 struct drm_mode_set set;
1753 uint32_t __user *set_connectors_ptr;
1754 int ret = 0;
1755 int i;
1756
fb3b06c8
DA		 1757 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1758 return -EINVAL;
1759
f453ba04
DA		 1760 mutex_lock(&dev->mode_config.mutex);
1761 obj = drm_mode_object_find(dev, crtc_req->crtc_id,
1762 DRM_MODE_OBJECT_CRTC);
1763 if (!obj) {
58367ed6 1764 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
f453ba04
DA		 1765 ret = -EINVAL;
1766 goto out;
1767 }
1768 crtc = obj_to_crtc(obj);
9440106b 1769 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
f453ba04
DA		 1770
1771 if (crtc_req->mode_valid) {
1772 /* If we have a mode we need a framebuffer. */
1773 /* If we pass -1, set the mode with the currently bound fb */
1774 if (crtc_req->fb_id == -1) {
1775 list_for_each_entry(crtcfb,
1776 &dev->mode_config.crtc_list, head) {
1777 if (crtcfb == crtc) {
58367ed6
ZY		 1778 DRM_DEBUG_KMS("Using current fb for "
1779 "setmode\n");
f453ba04
DA		 1780 fb = crtc->fb;
1781 }
1782 }
1783 } else {
1784 obj = drm_mode_object_find(dev, crtc_req->fb_id,
1785 DRM_MODE_OBJECT_FB);
1786 if (!obj) {
58367ed6
ZY		 1787 DRM_DEBUG_KMS("Unknown FB ID%d\n",
1788 crtc_req->fb_id);
f453ba04
DA		 1789 ret = -EINVAL;
1790 goto out;
1791 }
1792 fb = obj_to_fb(obj);
1793 }
1794
1795 mode = drm_mode_create(dev);
1796 drm_crtc_convert_umode(mode, &crtc_req->mode);
1797 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
1798 }
1799
1800 if (crtc_req->count_connectors == 0 && mode) {
58367ed6 1801 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
f453ba04
DA		 1802 ret = -EINVAL;
1803 goto out;
1804 }
1805
7781de74 1806 if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
58367ed6 1807 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
f453ba04
DA		 1808 crtc_req->count_connectors);
1809 ret = -EINVAL;
1810 goto out;
1811 }
1812
1813 if (crtc_req->count_connectors > 0) {
1814 u32 out_id;
1815
1816 /* Avoid unbounded kernel memory allocation */
1817 if (crtc_req->count_connectors > config->num_connector) {
1818 ret = -EINVAL;
1819 goto out;
1820 }
1821
1822 connector_set = kmalloc(crtc_req->count_connectors *
1823 sizeof(struct drm_connector *),
1824 GFP_KERNEL);
1825 if (!connector_set) {
1826 ret = -ENOMEM;
1827 goto out;
1828 }
1829
1830 for (i = 0; i < crtc_req->count_connectors; i++) {
1831 set_connectors_ptr = (uint32_t *)(unsigned long)crtc_req->set_connectors_ptr;
1832 if (get_user(out_id, &set_connectors_ptr[i])) {
1833 ret = -EFAULT;
1834 goto out;
1835 }
1836
1837 obj = drm_mode_object_find(dev, out_id,
1838 DRM_MODE_OBJECT_CONNECTOR);
1839 if (!obj) {
58367ed6
ZY		 1840 DRM_DEBUG_KMS("Connector id %d unknown\n",
1841 out_id);
f453ba04
DA		 1842 ret = -EINVAL;
1843 goto out;
1844 }
1845 connector = obj_to_connector(obj);
9440106b
JG		 1846 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1847 connector->base.id,
1848 drm_get_connector_name(connector));
f453ba04
DA		 1849
1850 connector_set[i] = connector;
1851 }
1852 }
1853
1854 set.crtc = crtc;
1855 set.x = crtc_req->x;
1856 set.y = crtc_req->y;
1857 set.mode = mode;
1858 set.connectors = connector_set;
1859 set.num_connectors = crtc_req->count_connectors;
5ef5f72f 1860 set.fb = fb;
f453ba04
DA		 1861 ret = crtc->funcs->set_config(&set);
1862
1863out:
1864 kfree(connector_set);
1865 mutex_unlock(&dev->mode_config.mutex);
1866 return ret;
1867}
1868
1869int drm_mode_cursor_ioctl(struct drm_device *dev,
1870 void *data, struct drm_file *file_priv)
1871{
1872 struct drm_mode_cursor *req = data;
1873 struct drm_mode_object *obj;
1874 struct drm_crtc *crtc;
1875 int ret = 0;
1876
fb3b06c8
DA		 1877 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1878 return -EINVAL;
1879
f453ba04
DA		 1880 if (!req->flags) {
1881 DRM_ERROR("no operation set\n");
1882 return -EINVAL;
1883 }
1884
1885 mutex_lock(&dev->mode_config.mutex);
e0c8463a 1886 obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
f453ba04 1887 if (!obj) {
58367ed6 1888 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
f453ba04
DA		 1889 ret = -EINVAL;
1890 goto out;
1891 }
1892 crtc = obj_to_crtc(obj);
1893
1894 if (req->flags & DRM_MODE_CURSOR_BO) {
1895 if (!crtc->funcs->cursor_set) {
1896 DRM_ERROR("crtc does not support cursor\n");
1897 ret = -ENXIO;
1898 goto out;
1899 }
1900 /* Turns off the cursor if handle is 0 */
1901 ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
1902 req->width, req->height);
1903 }
1904
1905 if (req->flags & DRM_MODE_CURSOR_MOVE) {
1906 if (crtc->funcs->cursor_move) {
1907 ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
1908 } else {
1909 DRM_ERROR("crtc does not support cursor\n");
1910 ret = -EFAULT;
1911 goto out;
1912 }
1913 }
1914out:
1915 mutex_unlock(&dev->mode_config.mutex);
1916 return ret;
1917}
1918
308e5bcb
JB		 1919/* Original addfb only supported RGB formats, so figure out which one */
1920uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth)
1921{
1922 uint32_t fmt;
1923
1924 switch (bpp) {
1925 case 8:
04b3924d 1926 fmt = DRM_FORMAT_RGB332;
308e5bcb
JB		 1927 break;
1928 case 16:
1929 if (depth == 15)
04b3924d 1930 fmt = DRM_FORMAT_XRGB1555;
308e5bcb 1931 else
04b3924d 1932 fmt = DRM_FORMAT_RGB565;
308e5bcb
JB		 1933 break;
1934 case 24:
04b3924d 1935 fmt = DRM_FORMAT_RGB888;
308e5bcb
JB		 1936 break;
1937 case 32:
1938 if (depth == 24)
04b3924d 1939 fmt = DRM_FORMAT_XRGB8888;
308e5bcb 1940 else if (depth == 30)
04b3924d 1941 fmt = DRM_FORMAT_XRGB2101010;
308e5bcb 1942 else
04b3924d 1943 fmt = DRM_FORMAT_ARGB8888;
308e5bcb
JB		 1944 break;
1945 default:
04b3924d
VS		 1946 DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n");
1947 fmt = DRM_FORMAT_XRGB8888;
308e5bcb
JB		 1948 break;
1949 }
1950
1951 return fmt;
1952}
1953EXPORT_SYMBOL(drm_mode_legacy_fb_format);
1954
f453ba04
DA		 1955/**
1956 * drm_mode_addfb - add an FB to the graphics configuration
1957 * @inode: inode from the ioctl
1958 * @filp: file * from the ioctl
1959 * @cmd: cmd from ioctl
1960 * @arg: arg from ioctl
1961 *
1962 * LOCKING:
1963 * Takes mode config lock.
1964 *
1965 * Add a new FB to the specified CRTC, given a user request.
1966 *
1967 * Called by the user via ioctl.
1968 *
1969 * RETURNS:
1970 * Zero on success, errno on failure.
1971 */
1972int drm_mode_addfb(struct drm_device *dev,
1973 void *data, struct drm_file *file_priv)
1974{
308e5bcb
JB		 1975 struct drm_mode_fb_cmd *or = data;
1976 struct drm_mode_fb_cmd2 r = {};
1977 struct drm_mode_config *config = &dev->mode_config;
1978 struct drm_framebuffer *fb;
1979 int ret = 0;
1980
1981 /* Use new struct with format internally */
1982 r.fb_id = or->fb_id;
1983 r.width = or->width;
1984 r.height = or->height;
1985 r.pitches[0] = or->pitch;
1986 r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth);
1987 r.handles[0] = or->handle;
1988
1989 if (!drm_core_check_feature(dev, DRIVER_MODESET))
1990 return -EINVAL;
1991
1992 if ((config->min_width > r.width) || (r.width > config->max_width)) {
1993 DRM_ERROR("mode new framebuffer width not within limits\n");
1994 return -EINVAL;
1995 }
1996 if ((config->min_height > r.height) || (r.height > config->max_height)) {
1997 DRM_ERROR("mode new framebuffer height not within limits\n");
1998 return -EINVAL;
1999 }
2000
2001 mutex_lock(&dev->mode_config.mutex);
2002
2003 /* TODO check buffer is sufficiently large */
2004 /* TODO setup destructor callback */
2005
2006 fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r);
2007 if (IS_ERR(fb)) {
2008 DRM_ERROR("could not create framebuffer\n");
2009 ret = PTR_ERR(fb);
2010 goto out;
2011 }
2012
2013 or->fb_id = fb->base.id;
2014 list_add(&fb->filp_head, &file_priv->fbs);
2015 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
2016
2017out:
2018 mutex_unlock(&dev->mode_config.mutex);
2019 return ret;
2020}
2021
2022/**
2023 * drm_mode_addfb2 - add an FB to the graphics configuration
2024 * @inode: inode from the ioctl
2025 * @filp: file * from the ioctl
2026 * @cmd: cmd from ioctl
2027 * @arg: arg from ioctl
2028 *
2029 * LOCKING:
2030 * Takes mode config lock.
2031 *
2032 * Add a new FB to the specified CRTC, given a user request with format.
2033 *
2034 * Called by the user via ioctl.
2035 *
2036 * RETURNS:
2037 * Zero on success, errno on failure.
2038 */
2039int drm_mode_addfb2(struct drm_device *dev,
2040 void *data, struct drm_file *file_priv)
2041{
2042 struct drm_mode_fb_cmd2 *r = data;
f453ba04
DA		 2043 struct drm_mode_config *config = &dev->mode_config;
2044 struct drm_framebuffer *fb;
2045 int ret = 0;
2046
fb3b06c8
DA		 2047 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2048 return -EINVAL;
2049
f453ba04 2050 if ((config->min_width > r->width) || (r->width > config->max_width)) {
8cf5c917
JB		 2051 DRM_ERROR("bad framebuffer width %d, should be >= %d && <= %d\n",
2052 r->width, config->min_width, config->max_width);
f453ba04
DA		 2053 return -EINVAL;
2054 }
2055 if ((config->min_height > r->height) || (r->height > config->max_height)) {
8cf5c917
JB		 2056 DRM_ERROR("bad framebuffer height %d, should be >= %d && <= %d\n",
2057 r->height, config->min_height, config->max_height);
f453ba04
DA		 2058 return -EINVAL;
2059 }
2060
2061 mutex_lock(&dev->mode_config.mutex);
2062
f453ba04 2063 fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
cce13ff7 2064 if (IS_ERR(fb)) {
f453ba04 2065 DRM_ERROR("could not create framebuffer\n");
cce13ff7 2066 ret = PTR_ERR(fb);
f453ba04
DA		 2067 goto out;
2068 }
2069
e0c8463a 2070 r->fb_id = fb->base.id;
f453ba04 2071 list_add(&fb->filp_head, &file_priv->fbs);
9440106b 2072 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
f453ba04
DA		 2073
2074out:
2075 mutex_unlock(&dev->mode_config.mutex);
2076 return ret;
2077}
2078
2079/**
2080 * drm_mode_rmfb - remove an FB from the configuration
2081 * @inode: inode from the ioctl
2082 * @filp: file * from the ioctl
2083 * @cmd: cmd from ioctl
2084 * @arg: arg from ioctl
2085 *
2086 * LOCKING:
2087 * Takes mode config lock.
2088 *
2089 * Remove the FB specified by the user.
2090 *
2091 * Called by the user via ioctl.
2092 *
2093 * RETURNS:
2094 * Zero on success, errno on failure.
2095 */
2096int drm_mode_rmfb(struct drm_device *dev,
2097 void *data, struct drm_file *file_priv)
2098{
2099 struct drm_mode_object *obj;
2100 struct drm_framebuffer *fb = NULL;
2101 struct drm_framebuffer *fbl = NULL;
2102 uint32_t *id = data;
2103 int ret = 0;
2104 int found = 0;
2105
fb3b06c8
DA		 2106 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2107 return -EINVAL;
2108
f453ba04
DA		 2109 mutex_lock(&dev->mode_config.mutex);
2110 obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB);
25985edc 2111 /* TODO check that we really get a framebuffer back. */
f453ba04
DA		 2112 if (!obj) {
2113 DRM_ERROR("mode invalid framebuffer id\n");
2114 ret = -EINVAL;
2115 goto out;
2116 }
2117 fb = obj_to_fb(obj);
2118
2119 list_for_each_entry(fbl, &file_priv->fbs, filp_head)
2120 if (fb == fbl)
2121 found = 1;
2122
2123 if (!found) {
2124 DRM_ERROR("tried to remove a fb that we didn't own\n");
2125 ret = -EINVAL;
2126 goto out;
2127 }
2128
2129 /* TODO release all crtc connected to the framebuffer */
2130 /* TODO unhock the destructor from the buffer object */
2131
2132 list_del(&fb->filp_head);
2133 fb->funcs->destroy(fb);
2134
2135out:
2136 mutex_unlock(&dev->mode_config.mutex);
2137 return ret;
2138}
2139
2140/**
2141 * drm_mode_getfb - get FB info
2142 * @inode: inode from the ioctl
2143 * @filp: file * from the ioctl
2144 * @cmd: cmd from ioctl
2145 * @arg: arg from ioctl
2146 *
2147 * LOCKING:
2148 * Caller? (FIXME)
2149 *
2150 * Lookup the FB given its ID and return info about it.
2151 *
2152 * Called by the user via ioctl.
2153 *
2154 * RETURNS:
2155 * Zero on success, errno on failure.
2156 */
2157int drm_mode_getfb(struct drm_device *dev,
2158 void *data, struct drm_file *file_priv)
2159{
2160 struct drm_mode_fb_cmd *r = data;
2161 struct drm_mode_object *obj;
2162 struct drm_framebuffer *fb;
2163 int ret = 0;
2164
fb3b06c8
DA		 2165 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2166 return -EINVAL;
2167
f453ba04 2168 mutex_lock(&dev->mode_config.mutex);
e0c8463a 2169 obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
f453ba04
DA		 2170 if (!obj) {
2171 DRM_ERROR("invalid framebuffer id\n");
2172 ret = -EINVAL;
2173 goto out;
2174 }
2175 fb = obj_to_fb(obj);
2176
2177 r->height = fb->height;
2178 r->width = fb->width;
2179 r->depth = fb->depth;
2180 r->bpp = fb->bits_per_pixel;
2181 r->pitch = fb->pitch;
2182 fb->funcs->create_handle(fb, file_priv, &r->handle);
2183
2184out:
2185 mutex_unlock(&dev->mode_config.mutex);
2186 return ret;
2187}
2188
884840aa
JB		 2189int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
2190 void *data, struct drm_file *file_priv)
2191{
2192 struct drm_clip_rect __user *clips_ptr;
2193 struct drm_clip_rect *clips = NULL;
2194 struct drm_mode_fb_dirty_cmd *r = data;
2195 struct drm_mode_object *obj;
2196 struct drm_framebuffer *fb;
2197 unsigned flags;
2198 int num_clips;
2199 int ret = 0;
2200
fb3b06c8
DA		 2201 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2202 return -EINVAL;
2203
884840aa
JB		 2204 mutex_lock(&dev->mode_config.mutex);
2205 obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
2206 if (!obj) {
2207 DRM_ERROR("invalid framebuffer id\n");
2208 ret = -EINVAL;
2209 goto out_err1;
2210 }
2211 fb = obj_to_fb(obj);
2212
2213 num_clips = r->num_clips;
2214 clips_ptr = (struct drm_clip_rect *)(unsigned long)r->clips_ptr;
2215
2216 if (!num_clips != !clips_ptr) {
2217 ret = -EINVAL;
2218 goto out_err1;
2219 }
2220
2221 flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
2222
2223 /* If userspace annotates copy, clips must come in pairs */
2224 if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
2225 ret = -EINVAL;
2226 goto out_err1;
2227 }
2228
2229 if (num_clips && clips_ptr) {
2230 clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
2231 if (!clips) {
2232 ret = -ENOMEM;
2233 goto out_err1;
2234 }
2235
2236 ret = copy_from_user(clips, clips_ptr,
2237 num_clips * sizeof(*clips));
e902a358
DC		 2238 if (ret) {
2239 ret = -EFAULT;
884840aa 2240 goto out_err2;
e902a358 2241 }
884840aa
JB		 2242 }
2243
2244 if (fb->funcs->dirty) {
02b00162
TH		 2245 ret = fb->funcs->dirty(fb, file_priv, flags, r->color,
2246 clips, num_clips);
884840aa
JB		 2247 } else {
2248 ret = -ENOSYS;
2249 goto out_err2;
2250 }
2251
2252out_err2:
2253 kfree(clips);
2254out_err1:
2255 mutex_unlock(&dev->mode_config.mutex);
2256 return ret;
2257}
2258
2259
f453ba04
DA		 2260/**
2261 * drm_fb_release - remove and free the FBs on this file
2262 * @filp: file * from the ioctl
2263 *
2264 * LOCKING:
2265 * Takes mode config lock.
2266 *
2267 * Destroy all the FBs associated with @filp.
2268 *
2269 * Called by the user via ioctl.
2270 *
2271 * RETURNS:
2272 * Zero on success, errno on failure.
2273 */
ea39f835 2274void drm_fb_release(struct drm_file *priv)
f453ba04 2275{
f453ba04
DA		 2276 struct drm_device *dev = priv->minor->dev;
2277 struct drm_framebuffer *fb, *tfb;
2278
2279 mutex_lock(&dev->mode_config.mutex);
2280 list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
2281 list_del(&fb->filp_head);
2282 fb->funcs->destroy(fb);
2283 }
2284 mutex_unlock(&dev->mode_config.mutex);
2285}
2286
2287/**
2288 * drm_mode_attachmode - add a mode to the user mode list
2289 * @dev: DRM device
2290 * @connector: connector to add the mode to
2291 * @mode: mode to add
2292 *
2293 * Add @mode to @connector's user mode list.
2294 */
2295static int drm_mode_attachmode(struct drm_device *dev,
2296 struct drm_connector *connector,
2297 struct drm_display_mode *mode)
2298{
2299 int ret = 0;
2300
2301 list_add_tail(&mode->head, &connector->user_modes);
2302 return ret;
2303}
2304
2305int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc,
2306 struct drm_display_mode *mode)
2307{
2308 struct drm_connector *connector;
2309 int ret = 0;
2310 struct drm_display_mode *dup_mode;
2311 int need_dup = 0;
2312 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2313 if (!connector->encoder)
2314 break;
2315 if (connector->encoder->crtc == crtc) {
2316 if (need_dup)
2317 dup_mode = drm_mode_duplicate(dev, mode);
2318 else
2319 dup_mode = mode;
2320 ret = drm_mode_attachmode(dev, connector, dup_mode);
2321 if (ret)
2322 return ret;
2323 need_dup = 1;
2324 }
2325 }
2326 return 0;
2327}
2328EXPORT_SYMBOL(drm_mode_attachmode_crtc);
2329
2330static int drm_mode_detachmode(struct drm_device *dev,
2331 struct drm_connector *connector,
2332 struct drm_display_mode *mode)
2333{
2334 int found = 0;
2335 int ret = 0;
2336 struct drm_display_mode *match_mode, *t;
2337
2338 list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) {
2339 if (drm_mode_equal(match_mode, mode)) {
2340 list_del(&match_mode->head);
2341 drm_mode_destroy(dev, match_mode);
2342 found = 1;
2343 break;
2344 }
2345 }
2346
2347 if (!found)
2348 ret = -EINVAL;
2349
2350 return ret;
2351}
2352
2353int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode)
2354{
2355 struct drm_connector *connector;
2356
2357 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
2358 drm_mode_detachmode(dev, connector, mode);
2359 }
2360 return 0;
2361}
2362EXPORT_SYMBOL(drm_mode_detachmode_crtc);
2363
2364/**
2365 * drm_fb_attachmode - Attach a user mode to an connector
2366 * @inode: inode from the ioctl
2367 * @filp: file * from the ioctl
2368 * @cmd: cmd from ioctl
2369 * @arg: arg from ioctl
2370 *
2371 * This attaches a user specified mode to an connector.
2372 * Called by the user via ioctl.
2373 *
2374 * RETURNS:
2375 * Zero on success, errno on failure.
2376 */
2377int drm_mode_attachmode_ioctl(struct drm_device *dev,
2378 void *data, struct drm_file *file_priv)
2379{
2380 struct drm_mode_mode_cmd *mode_cmd = data;
2381 struct drm_connector *connector;
2382 struct drm_display_mode *mode;
2383 struct drm_mode_object *obj;
2384 struct drm_mode_modeinfo *umode = &mode_cmd->mode;
2385 int ret = 0;
2386
fb3b06c8
DA		 2387 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2388 return -EINVAL;
2389
f453ba04
DA		 2390 mutex_lock(&dev->mode_config.mutex);
2391
2392 obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2393 if (!obj) {
2394 ret = -EINVAL;
2395 goto out;
2396 }
2397 connector = obj_to_connector(obj);
2398
2399 mode = drm_mode_create(dev);
2400 if (!mode) {
2401 ret = -ENOMEM;
2402 goto out;
2403 }
2404
2405 drm_crtc_convert_umode(mode, umode);
2406
2407 ret = drm_mode_attachmode(dev, connector, mode);
2408out:
2409 mutex_unlock(&dev->mode_config.mutex);
2410 return ret;
2411}
2412
2413
2414/**
2415 * drm_fb_detachmode - Detach a user specified mode from an connector
2416 * @inode: inode from the ioctl
2417 * @filp: file * from the ioctl
2418 * @cmd: cmd from ioctl
2419 * @arg: arg from ioctl
2420 *
2421 * Called by the user via ioctl.
2422 *
2423 * RETURNS:
2424 * Zero on success, errno on failure.
2425 */
2426int drm_mode_detachmode_ioctl(struct drm_device *dev,
2427 void *data, struct drm_file *file_priv)
2428{
2429 struct drm_mode_object *obj;
2430 struct drm_mode_mode_cmd *mode_cmd = data;
2431 struct drm_connector *connector;
2432 struct drm_display_mode mode;
2433 struct drm_mode_modeinfo *umode = &mode_cmd->mode;
2434 int ret = 0;
2435
fb3b06c8
DA		 2436 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2437 return -EINVAL;
2438
f453ba04
DA		 2439 mutex_lock(&dev->mode_config.mutex);
2440
2441 obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2442 if (!obj) {
2443 ret = -EINVAL;
2444 goto out;
2445 }
2446 connector = obj_to_connector(obj);
2447
2448 drm_crtc_convert_umode(&mode, umode);
2449 ret = drm_mode_detachmode(dev, connector, &mode);
2450out:
2451 mutex_unlock(&dev->mode_config.mutex);
2452 return ret;
2453}
2454
2455struct drm_property *drm_property_create(struct drm_device *dev, int flags,
2456 const char *name, int num_values)
2457{
2458 struct drm_property *property = NULL;
2459
2460 property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
2461 if (!property)
2462 return NULL;
2463
2464 if (num_values) {
2465 property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
2466 if (!property->values)
2467 goto fail;
2468 }
2469
2470 drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
2471 property->flags = flags;
2472 property->num_values = num_values;
2473 INIT_LIST_HEAD(&property->enum_blob_list);
2474
2475 if (name)
2476 strncpy(property->name, name, DRM_PROP_NAME_LEN);
2477
2478 list_add_tail(&property->head, &dev->mode_config.property_list);
2479 return property;
2480fail:
2481 kfree(property);
2482 return NULL;
2483}
2484EXPORT_SYMBOL(drm_property_create);
2485
2486int drm_property_add_enum(struct drm_property *property, int index,
2487 uint64_t value, const char *name)
2488{
2489 struct drm_property_enum *prop_enum;
2490
2491 if (!(property->flags & DRM_MODE_PROP_ENUM))
2492 return -EINVAL;
2493
2494 if (!list_empty(&property->enum_blob_list)) {
2495 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2496 if (prop_enum->value == value) {
2497 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2498 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2499 return 0;
2500 }
2501 }
2502 }
2503
2504 prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
2505 if (!prop_enum)
2506 return -ENOMEM;
2507
2508 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2509 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2510 prop_enum->value = value;
2511
2512 property->values[index] = value;
2513 list_add_tail(&prop_enum->head, &property->enum_blob_list);
2514 return 0;
2515}
2516EXPORT_SYMBOL(drm_property_add_enum);
2517
2518void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
2519{
2520 struct drm_property_enum *prop_enum, *pt;
2521
2522 list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
2523 list_del(&prop_enum->head);
2524 kfree(prop_enum);
2525 }
2526
2527 if (property->num_values)
2528 kfree(property->values);
2529 drm_mode_object_put(dev, &property->base);
2530 list_del(&property->head);
2531 kfree(property);
2532}
2533EXPORT_SYMBOL(drm_property_destroy);
2534
2535int drm_connector_attach_property(struct drm_connector *connector,
2536 struct drm_property *property, uint64_t init_val)
2537{
2538 int i;
2539
2540 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2541 if (connector->property_ids[i] == 0) {
2542 connector->property_ids[i] = property->base.id;
2543 connector->property_values[i] = init_val;
2544 break;
2545 }
2546 }
2547
2548 if (i == DRM_CONNECTOR_MAX_PROPERTY)
2549 return -EINVAL;
2550 return 0;
2551}
2552EXPORT_SYMBOL(drm_connector_attach_property);
2553
2554int drm_connector_property_set_value(struct drm_connector *connector,
2555 struct drm_property *property, uint64_t value)
2556{
2557 int i;
2558
2559 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2560 if (connector->property_ids[i] == property->base.id) {
2561 connector->property_values[i] = value;
2562 break;
2563 }
2564 }
2565
2566 if (i == DRM_CONNECTOR_MAX_PROPERTY)
2567 return -EINVAL;
2568 return 0;
2569}
2570EXPORT_SYMBOL(drm_connector_property_set_value);
2571
2572int drm_connector_property_get_value(struct drm_connector *connector,
2573 struct drm_property *property, uint64_t *val)
2574{
2575 int i;
2576
2577 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2578 if (connector->property_ids[i] == property->base.id) {
2579 *val = connector->property_values[i];
2580 break;
2581 }
2582 }
2583
2584 if (i == DRM_CONNECTOR_MAX_PROPERTY)
2585 return -EINVAL;
2586 return 0;
2587}
2588EXPORT_SYMBOL(drm_connector_property_get_value);
2589
2590int drm_mode_getproperty_ioctl(struct drm_device *dev,
2591 void *data, struct drm_file *file_priv)
2592{
2593 struct drm_mode_object *obj;
2594 struct drm_mode_get_property *out_resp = data;
2595 struct drm_property *property;
2596 int enum_count = 0;
2597 int blob_count = 0;
2598 int value_count = 0;
2599 int ret = 0, i;
2600 int copied;
2601 struct drm_property_enum *prop_enum;
2602 struct drm_mode_property_enum __user *enum_ptr;
2603 struct drm_property_blob *prop_blob;
2604 uint32_t *blob_id_ptr;
2605 uint64_t __user *values_ptr;
2606 uint32_t __user *blob_length_ptr;
2607
fb3b06c8
DA		 2608 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2609 return -EINVAL;
2610
f453ba04
DA		 2611 mutex_lock(&dev->mode_config.mutex);
2612 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2613 if (!obj) {
2614 ret = -EINVAL;
2615 goto done;
2616 }
2617 property = obj_to_property(obj);
2618
2619 if (property->flags & DRM_MODE_PROP_ENUM) {
2620 list_for_each_entry(prop_enum, &property->enum_blob_list, head)
2621 enum_count++;
2622 } else if (property->flags & DRM_MODE_PROP_BLOB) {
2623 list_for_each_entry(prop_blob, &property->enum_blob_list, head)
2624 blob_count++;
2625 }
2626
2627 value_count = property->num_values;
2628
2629 strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
2630 out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
2631 out_resp->flags = property->flags;
2632
2633 if ((out_resp->count_values >= value_count) && value_count) {
2634 values_ptr = (uint64_t *)(unsigned long)out_resp->values_ptr;
2635 for (i = 0; i < value_count; i++) {
2636 if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
2637 ret = -EFAULT;
2638 goto done;
2639 }
2640 }
2641 }
2642 out_resp->count_values = value_count;
2643
2644 if (property->flags & DRM_MODE_PROP_ENUM) {
2645 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
2646 copied = 0;
2647 enum_ptr = (struct drm_mode_property_enum *)(unsigned long)out_resp->enum_blob_ptr;
2648 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2649
2650 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
2651 ret = -EFAULT;
2652 goto done;
2653 }
2654
2655 if (copy_to_user(&enum_ptr[copied].name,
2656 &prop_enum->name, DRM_PROP_NAME_LEN)) {
2657 ret = -EFAULT;
2658 goto done;
2659 }
2660 copied++;
2661 }
2662 }
2663 out_resp->count_enum_blobs = enum_count;
2664 }
2665
2666 if (property->flags & DRM_MODE_PROP_BLOB) {
2667 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
2668 copied = 0;
2669 blob_id_ptr = (uint32_t *)(unsigned long)out_resp->enum_blob_ptr;
2670 blob_length_ptr = (uint32_t *)(unsigned long)out_resp->values_ptr;
2671
2672 list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
2673 if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
2674 ret = -EFAULT;
2675 goto done;
2676 }
2677
2678 if (put_user(prop_blob->length, blob_length_ptr + copied)) {
2679 ret = -EFAULT;
2680 goto done;
2681 }
2682
2683 copied++;
2684 }
2685 }
2686 out_resp->count_enum_blobs = blob_count;
2687 }
2688done:
2689 mutex_unlock(&dev->mode_config.mutex);
2690 return ret;
2691}
2692
2693static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
2694 void *data)
2695{
2696 struct drm_property_blob *blob;
2697
2698 if (!length || !data)
2699 return NULL;
2700
2701 blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
2702 if (!blob)
2703 return NULL;
2704
2705 blob->data = (void *)((char *)blob + sizeof(struct drm_property_blob));
2706 blob->length = length;
2707
2708 memcpy(blob->data, data, length);
2709
2710 drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
2711
2712 list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
2713 return blob;
2714}
2715
2716static void drm_property_destroy_blob(struct drm_device *dev,
2717 struct drm_property_blob *blob)
2718{
2719 drm_mode_object_put(dev, &blob->base);
2720 list_del(&blob->head);
2721 kfree(blob);
2722}
2723
2724int drm_mode_getblob_ioctl(struct drm_device *dev,
2725 void *data, struct drm_file *file_priv)
2726{
2727 struct drm_mode_object *obj;
2728 struct drm_mode_get_blob *out_resp = data;
2729 struct drm_property_blob *blob;
2730 int ret = 0;
2731 void *blob_ptr;
2732
fb3b06c8
DA		 2733 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2734 return -EINVAL;
2735
f453ba04
DA		 2736 mutex_lock(&dev->mode_config.mutex);
2737 obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
2738 if (!obj) {
2739 ret = -EINVAL;
2740 goto done;
2741 }
2742 blob = obj_to_blob(obj);
2743
2744 if (out_resp->length == blob->length) {
2745 blob_ptr = (void *)(unsigned long)out_resp->data;
2746 if (copy_to_user(blob_ptr, blob->data, blob->length)){
2747 ret = -EFAULT;
2748 goto done;
2749 }
2750 }
2751 out_resp->length = blob->length;
2752
2753done:
2754 mutex_unlock(&dev->mode_config.mutex);
2755 return ret;
2756}
2757
2758int drm_mode_connector_update_edid_property(struct drm_connector *connector,
2759 struct edid *edid)
2760{
2761 struct drm_device *dev = connector->dev;
7466f4cc 2762 int ret = 0, size;
f453ba04
DA		 2763
2764 if (connector->edid_blob_ptr)
2765 drm_property_destroy_blob(dev, connector->edid_blob_ptr);
2766
2767 /* Delete edid, when there is none. */
2768 if (!edid) {
2769 connector->edid_blob_ptr = NULL;
2770 ret = drm_connector_property_set_value(connector, dev->mode_config.edid_property, 0);
2771 return ret;
2772 }
2773
7466f4cc
AJ		 2774 size = EDID_LENGTH * (1 + edid->extensions);
2775 connector->edid_blob_ptr = drm_property_create_blob(connector->dev,
2776 size, edid);
f453ba04
DA		 2777
2778 ret = drm_connector_property_set_value(connector,
2779 dev->mode_config.edid_property,
2780 connector->edid_blob_ptr->base.id);
2781
2782 return ret;
2783}
2784EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
2785
2786int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
2787 void *data, struct drm_file *file_priv)
2788{
2789 struct drm_mode_connector_set_property *out_resp = data;
2790 struct drm_mode_object *obj;
2791 struct drm_property *property;
2792 struct drm_connector *connector;
2793 int ret = -EINVAL;
2794 int i;
2795
fb3b06c8
DA		 2796 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2797 return -EINVAL;
2798
f453ba04
DA		 2799 mutex_lock(&dev->mode_config.mutex);
2800
2801 obj = drm_mode_object_find(dev, out_resp->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2802 if (!obj) {
2803 goto out;
2804 }
2805 connector = obj_to_connector(obj);
2806
2807 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2808 if (connector->property_ids[i] == out_resp->prop_id)
2809 break;
2810 }
2811
2812 if (i == DRM_CONNECTOR_MAX_PROPERTY) {
2813 goto out;
2814 }
2815
2816 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2817 if (!obj) {
2818 goto out;
2819 }
2820 property = obj_to_property(obj);
2821
2822 if (property->flags & DRM_MODE_PROP_IMMUTABLE)
2823 goto out;
2824
2825 if (property->flags & DRM_MODE_PROP_RANGE) {
2826 if (out_resp->value < property->values[0])
2827 goto out;
2828
2829 if (out_resp->value > property->values[1])
2830 goto out;
2831 } else {
2832 int found = 0;
2833 for (i = 0; i < property->num_values; i++) {
2834 if (property->values[i] == out_resp->value) {
2835 found = 1;
2836 break;
2837 }
2838 }
2839 if (!found) {
2840 goto out;
2841 }
2842 }
2843
c9fb15f6
KP		 2844 /* Do DPMS ourselves */
2845 if (property == connector->dev->mode_config.dpms_property) {
2846 if (connector->funcs->dpms)
2847 (*connector->funcs->dpms)(connector, (int) out_resp->value);
2848 ret = 0;
2849 } else if (connector->funcs->set_property)
f453ba04
DA		 2850 ret = connector->funcs->set_property(connector, property, out_resp->value);
2851
af901ca1 2852 /* store the property value if successful */
f453ba04
DA		 2853 if (!ret)
2854 drm_connector_property_set_value(connector, property, out_resp->value);
2855out:
2856 mutex_unlock(&dev->mode_config.mutex);
2857 return ret;
2858}
2859
f453ba04
DA		 2860int drm_mode_connector_attach_encoder(struct drm_connector *connector,
2861 struct drm_encoder *encoder)
2862{
2863 int i;
2864
2865 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
2866 if (connector->encoder_ids[i] == 0) {
2867 connector->encoder_ids[i] = encoder->base.id;
2868 return 0;
2869 }
2870 }
2871 return -ENOMEM;
2872}
2873EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
2874
2875void drm_mode_connector_detach_encoder(struct drm_connector *connector,
2876 struct drm_encoder *encoder)
2877{
2878 int i;
2879 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
2880 if (connector->encoder_ids[i] == encoder->base.id) {
2881 connector->encoder_ids[i] = 0;
2882 if (connector->encoder == encoder)
2883 connector->encoder = NULL;
2884 break;
2885 }
2886 }
2887}
2888EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
2889
2890bool drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
2891 int gamma_size)
2892{
2893 crtc->gamma_size = gamma_size;
2894
2895 crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
2896 if (!crtc->gamma_store) {
2897 crtc->gamma_size = 0;
2898 return false;
2899 }
2900
2901 return true;
2902}
2903EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
2904
2905int drm_mode_gamma_set_ioctl(struct drm_device *dev,
2906 void *data, struct drm_file *file_priv)
2907{
2908 struct drm_mode_crtc_lut *crtc_lut = data;
2909 struct drm_mode_object *obj;
2910 struct drm_crtc *crtc;
2911 void *r_base, *g_base, *b_base;
2912 int size;
2913 int ret = 0;
2914
fb3b06c8
DA		 2915 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2916 return -EINVAL;
2917
f453ba04
DA		 2918 mutex_lock(&dev->mode_config.mutex);
2919 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
2920 if (!obj) {
2921 ret = -EINVAL;
2922 goto out;
2923 }
2924 crtc = obj_to_crtc(obj);
2925
2926 /* memcpy into gamma store */
2927 if (crtc_lut->gamma_size != crtc->gamma_size) {
2928 ret = -EINVAL;
2929 goto out;
2930 }
2931
2932 size = crtc_lut->gamma_size * (sizeof(uint16_t));
2933 r_base = crtc->gamma_store;
2934 if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
2935 ret = -EFAULT;
2936 goto out;
2937 }
2938
2939 g_base = r_base + size;
2940 if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
2941 ret = -EFAULT;
2942 goto out;
2943 }
2944
2945 b_base = g_base + size;
2946 if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
2947 ret = -EFAULT;
2948 goto out;
2949 }
2950
7203425a 2951 crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
f453ba04
DA		 2952
2953out:
2954 mutex_unlock(&dev->mode_config.mutex);
2955 return ret;
2956
2957}
2958
2959int drm_mode_gamma_get_ioctl(struct drm_device *dev,
2960 void *data, struct drm_file *file_priv)
2961{
2962 struct drm_mode_crtc_lut *crtc_lut = data;
2963 struct drm_mode_object *obj;
2964 struct drm_crtc *crtc;
2965 void *r_base, *g_base, *b_base;
2966 int size;
2967 int ret = 0;
2968
fb3b06c8
DA		 2969 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2970 return -EINVAL;
2971
f453ba04
DA		 2972 mutex_lock(&dev->mode_config.mutex);
2973 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
2974 if (!obj) {
2975 ret = -EINVAL;
2976 goto out;
2977 }
2978 crtc = obj_to_crtc(obj);
2979
2980 /* memcpy into gamma store */
2981 if (crtc_lut->gamma_size != crtc->gamma_size) {
2982 ret = -EINVAL;
2983 goto out;
2984 }
2985
2986 size = crtc_lut->gamma_size * (sizeof(uint16_t));
2987 r_base = crtc->gamma_store;
2988 if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
2989 ret = -EFAULT;
2990 goto out;
2991 }
2992
2993 g_base = r_base + size;
2994 if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
2995 ret = -EFAULT;
2996 goto out;
2997 }
2998
2999 b_base = g_base + size;
3000 if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
3001 ret = -EFAULT;
3002 goto out;
3003 }
3004out:
3005 mutex_unlock(&dev->mode_config.mutex);
3006 return ret;
3007}
d91d8a3f
KH		 3008
3009int drm_mode_page_flip_ioctl(struct drm_device *dev,
3010 void *data, struct drm_file *file_priv)
3011{
3012 struct drm_mode_crtc_page_flip *page_flip = data;
3013 struct drm_mode_object *obj;
3014 struct drm_crtc *crtc;
3015 struct drm_framebuffer *fb;
3016 struct drm_pending_vblank_event *e = NULL;
3017 unsigned long flags;
3018 int ret = -EINVAL;
3019
3020 if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
3021 page_flip->reserved != 0)
3022 return -EINVAL;
3023
3024 mutex_lock(&dev->mode_config.mutex);
3025 obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC);
3026 if (!obj)
3027 goto out;
3028 crtc = obj_to_crtc(obj);
3029
90c1efdd
CW		 3030 if (crtc->fb == NULL) {
3031 /* The framebuffer is currently unbound, presumably
3032 * due to a hotplug event, that userspace has not
3033 * yet discovered.
3034 */
3035 ret = -EBUSY;
3036 goto out;
3037 }
3038
d91d8a3f
KH		 3039 if (crtc->funcs->page_flip == NULL)
3040 goto out;
3041
3042 obj = drm_mode_object_find(dev, page_flip->fb_id, DRM_MODE_OBJECT_FB);
3043 if (!obj)
3044 goto out;
3045 fb = obj_to_fb(obj);
3046
3047 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
3048 ret = -ENOMEM;
3049 spin_lock_irqsave(&dev->event_lock, flags);
3050 if (file_priv->event_space < sizeof e->event) {
3051 spin_unlock_irqrestore(&dev->event_lock, flags);
3052 goto out;
3053 }
3054 file_priv->event_space -= sizeof e->event;
3055 spin_unlock_irqrestore(&dev->event_lock, flags);
3056
3057 e = kzalloc(sizeof *e, GFP_KERNEL);
3058 if (e == NULL) {
3059 spin_lock_irqsave(&dev->event_lock, flags);
3060 file_priv->event_space += sizeof e->event;
3061 spin_unlock_irqrestore(&dev->event_lock, flags);
3062 goto out;
3063 }
3064
7bd4d7be 3065 e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
d91d8a3f
KH		 3066 e->event.base.length = sizeof e->event;
3067 e->event.user_data = page_flip->user_data;
3068 e->base.event = &e->event.base;
3069 e->base.file_priv = file_priv;
3070 e->base.destroy =
3071 (void (*) (struct drm_pending_event *)) kfree;
3072 }
3073
3074 ret = crtc->funcs->page_flip(crtc, fb, e);
3075 if (ret) {
3076 spin_lock_irqsave(&dev->event_lock, flags);
3077 file_priv->event_space += sizeof e->event;
3078 spin_unlock_irqrestore(&dev->event_lock, flags);
3079 kfree(e);
3080 }
3081
3082out:
3083 mutex_unlock(&dev->mode_config.mutex);
3084 return ret;
3085}
eb033556
CW		 3086
3087void drm_mode_config_reset(struct drm_device *dev)
3088{
3089 struct drm_crtc *crtc;
3090 struct drm_encoder *encoder;
3091 struct drm_connector *connector;
3092
3093 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
3094 if (crtc->funcs->reset)
3095 crtc->funcs->reset(crtc);
3096
3097 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
3098 if (encoder->funcs->reset)
3099 encoder->funcs->reset(encoder);
3100
3101 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
3102 if (connector->funcs->reset)
3103 connector->funcs->reset(connector);
3104}
3105EXPORT_SYMBOL(drm_mode_config_reset);
ff72145b
DA		 3106
3107int drm_mode_create_dumb_ioctl(struct drm_device *dev,
3108 void *data, struct drm_file *file_priv)
3109{
3110 struct drm_mode_create_dumb *args = data;
3111
3112 if (!dev->driver->dumb_create)
3113 return -ENOSYS;
3114 return dev->driver->dumb_create(file_priv, dev, args);
3115}
3116
3117int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
3118 void *data, struct drm_file *file_priv)
3119{
3120 struct drm_mode_map_dumb *args = data;
3121
3122 /* call driver ioctl to get mmap offset */
3123 if (!dev->driver->dumb_map_offset)
3124 return -ENOSYS;
3125
3126 return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset);
3127}
3128
3129int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
3130 void *data, struct drm_file *file_priv)
3131{
3132 struct drm_mode_destroy_dumb *args = data;
3133
3134 if (!dev->driver->dumb_destroy)
3135 return -ENOSYS;
3136
3137 return dev->driver->dumb_destroy(file_priv, dev, args->handle);
3138}
248dbc23
DA		 3139
3140/*
3141 * Just need to support RGB formats here for compat with code that doesn't
3142 * use pixel formats directly yet.
3143 */
3144void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
3145 int *bpp)
3146{
3147 switch (format) {
04b3924d
VS		 3148 case DRM_FORMAT_RGB332:
3149 case DRM_FORMAT_BGR233:
248dbc23
DA		 3150 *depth = 8;
3151 *bpp = 8;
3152 break;
04b3924d
VS		 3153 case DRM_FORMAT_XRGB1555:
3154 case DRM_FORMAT_XBGR1555:
3155 case DRM_FORMAT_RGBX5551:
3156 case DRM_FORMAT_BGRX5551:
3157 case DRM_FORMAT_ARGB1555:
3158 case DRM_FORMAT_ABGR1555:
3159 case DRM_FORMAT_RGBA5551:
3160 case DRM_FORMAT_BGRA5551:
248dbc23
DA		 3161 *depth = 15;
3162 *bpp = 16;
3163 break;
04b3924d
VS		 3164 case DRM_FORMAT_RGB565:
3165 case DRM_FORMAT_BGR565:
248dbc23
DA		 3166 *depth = 16;
3167 *bpp = 16;
3168 break;
04b3924d
VS		 3169 case DRM_FORMAT_RGB888:
3170 case DRM_FORMAT_BGR888:
3171 *depth = 24;
3172 *bpp = 24;
3173 break;
3174 case DRM_FORMAT_XRGB8888:
3175 case DRM_FORMAT_XBGR8888:
3176 case DRM_FORMAT_RGBX8888:
3177 case DRM_FORMAT_BGRX8888:
248dbc23
DA		 3178 *depth = 24;
3179 *bpp = 32;
3180 break;
04b3924d
VS		 3181 case DRM_FORMAT_XRGB2101010:
3182 case DRM_FORMAT_XBGR2101010:
3183 case DRM_FORMAT_RGBX1010102:
3184 case DRM_FORMAT_BGRX1010102:
3185 case DRM_FORMAT_ARGB2101010:
3186 case DRM_FORMAT_ABGR2101010:
3187 case DRM_FORMAT_RGBA1010102:
3188 case DRM_FORMAT_BGRA1010102:
248dbc23
DA		 3189 *depth = 30;
3190 *bpp = 32;
3191 break;
04b3924d
VS		 3192 case DRM_FORMAT_ARGB8888:
3193 case DRM_FORMAT_ABGR8888:
3194 case DRM_FORMAT_RGBA8888:
3195 case DRM_FORMAT_BGRA8888:
248dbc23
DA		 3196 *depth = 32;
3197 *bpp = 32;
3198 break;
3199 default:
3200 DRM_DEBUG_KMS("unsupported pixel format\n");
3201 *depth = 0;
3202 *bpp = 0;
3203 break;
3204 }
3205}
3206EXPORT_SYMBOL(drm_fb_get_bpp_depth);
Linux kernel - Deliverables
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