projects / deliverable / linux.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
drm: Define some new standard TV properties.
[deliverable/linux.git] / drivers / gpu / drm / drm_crtc.c
1 /*
2 * Copyright (c) 2006-2008 Intel Corporation
3 * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
4 * Copyright (c) 2008 Red Hat Inc.
5 *
6 * DRM core CRTC related functions
7 *
8 * Permission to use, copy, modify, distribute, and sell this software and its
9 * documentation for any purpose is hereby granted without fee, provided that
10 * the above copyright notice appear in all copies and that both that copyright
11 * notice and this permission notice appear in supporting documentation, and
12 * that the name of the copyright holders not be used in advertising or
13 * publicity pertaining to distribution of the software without specific,
14 * written prior permission. The copyright holders make no representations
15 * about the suitability of this software for any purpose. It is provided "as
16 * is" without express or implied warranty.
17 *
18 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
19 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
20 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
21 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
22 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
23 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
24 * OF THIS SOFTWARE.
25 *
26 * Authors:
27 * Keith Packard
28 * Eric Anholt <eric@anholt.net>
29 * Dave Airlie <airlied@linux.ie>
30 * Jesse Barnes <jesse.barnes@intel.com>
31 */
32 #include <linux/list.h>
33 #include "drm.h"
34 #include "drmP.h"
35 #include "drm_crtc.h"
36
37 struct drm_prop_enum_list {
38 int type;
39 char *name;
40 };
41
42 /* Avoid boilerplate. I'm tired of typing. */
43 #define DRM_ENUM_NAME_FN(fnname, list) \
44 char *fnname(int val) \
45 { \
46 int i; \
47 for (i = 0; i < ARRAY_SIZE(list); i++) { \
48 if (list[i].type == val) \
49 return list[i].name; \
50 } \
51 return "(unknown)"; \
52 }
53
54 /*
55 * Global properties
56 */
57 static struct drm_prop_enum_list drm_dpms_enum_list[] =
58 { { DRM_MODE_DPMS_ON, "On" },
59 { DRM_MODE_DPMS_STANDBY, "Standby" },
60 { DRM_MODE_DPMS_SUSPEND, "Suspend" },
61 { DRM_MODE_DPMS_OFF, "Off" }
62 };
63
64 DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list)
65
66 /*
67 * Optional properties
68 */
69 static struct drm_prop_enum_list drm_scaling_mode_enum_list[] =
70 {
71 { DRM_MODE_SCALE_NON_GPU, "Non-GPU" },
72 { DRM_MODE_SCALE_FULLSCREEN, "Fullscreen" },
73 { DRM_MODE_SCALE_NO_SCALE, "No scale" },
74 { DRM_MODE_SCALE_ASPECT, "Aspect" },
75 };
76
77 static struct drm_prop_enum_list drm_dithering_mode_enum_list[] =
78 {
79 { DRM_MODE_DITHERING_OFF, "Off" },
80 { DRM_MODE_DITHERING_ON, "On" },
81 };
82
83 /*
84 * Non-global properties, but "required" for certain connectors.
85 */
86 static struct drm_prop_enum_list drm_dvi_i_select_enum_list[] =
87 {
88 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
89 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
90 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
91 };
92
93 DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list)
94
95 static struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] =
96 {
97 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
98 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
99 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
100 };
101
102 DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name,
103 drm_dvi_i_subconnector_enum_list)
104
105 static struct drm_prop_enum_list drm_tv_select_enum_list[] =
106 {
107 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
108 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
109 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
110 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
111 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
112 };
113
114 DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list)
115
116 static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] =
117 {
118 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
119 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
120 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
121 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
122 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
123 };
124
125 DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
126 drm_tv_subconnector_enum_list)
127
128 struct drm_conn_prop_enum_list {
129 int type;
130 char *name;
131 int count;
132 };
133
134 /*
135 * Connector and encoder types.
136 */
137 static struct drm_conn_prop_enum_list drm_connector_enum_list[] =
138 { { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 },
139 { DRM_MODE_CONNECTOR_VGA, "VGA", 0 },
140 { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 },
141 { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 },
142 { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 },
143 { DRM_MODE_CONNECTOR_Composite, "Composite", 0 },
144 { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 },
145 { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 },
146 { DRM_MODE_CONNECTOR_Component, "Component", 0 },
147 { DRM_MODE_CONNECTOR_9PinDIN, "9-pin DIN", 0 },
148 { DRM_MODE_CONNECTOR_DisplayPort, "DisplayPort", 0 },
149 { DRM_MODE_CONNECTOR_HDMIA, "HDMI Type A", 0 },
150 { DRM_MODE_CONNECTOR_HDMIB, "HDMI Type B", 0 },
151 { DRM_MODE_CONNECTOR_TV, "TV", 0 },
152 };
153
154 static struct drm_prop_enum_list drm_encoder_enum_list[] =
155 { { DRM_MODE_ENCODER_NONE, "None" },
156 { DRM_MODE_ENCODER_DAC, "DAC" },
157 { DRM_MODE_ENCODER_TMDS, "TMDS" },
158 { DRM_MODE_ENCODER_LVDS, "LVDS" },
159 { DRM_MODE_ENCODER_TVDAC, "TV" },
160 };
161
162 char *drm_get_encoder_name(struct drm_encoder *encoder)
163 {
164 static char buf[32];
165
166 snprintf(buf, 32, "%s-%d",
167 drm_encoder_enum_list[encoder->encoder_type].name,
168 encoder->base.id);
169 return buf;
170 }
171
172 char *drm_get_connector_name(struct drm_connector *connector)
173 {
174 static char buf[32];
175
176 snprintf(buf, 32, "%s-%d",
177 drm_connector_enum_list[connector->connector_type].name,
178 connector->connector_type_id);
179 return buf;
180 }
181 EXPORT_SYMBOL(drm_get_connector_name);
182
183 char *drm_get_connector_status_name(enum drm_connector_status status)
184 {
185 if (status == connector_status_connected)
186 return "connected";
187 else if (status == connector_status_disconnected)
188 return "disconnected";
189 else
190 return "unknown";
191 }
192
193 /**
194 * drm_mode_object_get - allocate a new identifier
195 * @dev: DRM device
196 * @ptr: object pointer, used to generate unique ID
197 * @type: object type
198 *
199 * LOCKING:
200 *
201 * Create a unique identifier based on @ptr in @dev's identifier space. Used
202 * for tracking modes, CRTCs and connectors.
203 *
204 * RETURNS:
205 * New unique (relative to other objects in @dev) integer identifier for the
206 * object.
207 */
208 static int drm_mode_object_get(struct drm_device *dev,
209 struct drm_mode_object *obj, uint32_t obj_type)
210 {
211 int new_id = 0;
212 int ret;
213
214 again:
215 if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) {
216 DRM_ERROR("Ran out memory getting a mode number\n");
217 return -EINVAL;
218 }
219
220 mutex_lock(&dev->mode_config.idr_mutex);
221 ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id);
222 mutex_unlock(&dev->mode_config.idr_mutex);
223 if (ret == -EAGAIN)
224 goto again;
225
226 obj->id = new_id;
227 obj->type = obj_type;
228 return 0;
229 }
230
231 /**
232 * drm_mode_object_put - free an identifer
233 * @dev: DRM device
234 * @id: ID to free
235 *
236 * LOCKING:
237 * Caller must hold DRM mode_config lock.
238 *
239 * Free @id from @dev's unique identifier pool.
240 */
241 static void drm_mode_object_put(struct drm_device *dev,
242 struct drm_mode_object *object)
243 {
244 mutex_lock(&dev->mode_config.idr_mutex);
245 idr_remove(&dev->mode_config.crtc_idr, object->id);
246 mutex_unlock(&dev->mode_config.idr_mutex);
247 }
248
249 void *drm_mode_object_find(struct drm_device *dev, uint32_t id, uint32_t type)
250 {
251 struct drm_mode_object *obj = NULL;
252
253 mutex_lock(&dev->mode_config.idr_mutex);
254 obj = idr_find(&dev->mode_config.crtc_idr, id);
255 if (!obj || (obj->type != type) || (obj->id != id))
256 obj = NULL;
257 mutex_unlock(&dev->mode_config.idr_mutex);
258
259 return obj;
260 }
261 EXPORT_SYMBOL(drm_mode_object_find);
262
263 /**
264 * drm_crtc_from_fb - find the CRTC structure associated with an fb
265 * @dev: DRM device
266 * @fb: framebuffer in question
267 *
268 * LOCKING:
269 * Caller must hold mode_config lock.
270 *
271 * Find CRTC in the mode_config structure that matches @fb.
272 *
273 * RETURNS:
274 * Pointer to the CRTC or NULL if it wasn't found.
275 */
276 struct drm_crtc *drm_crtc_from_fb(struct drm_device *dev,
277 struct drm_framebuffer *fb)
278 {
279 struct drm_crtc *crtc;
280
281 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
282 if (crtc->fb == fb)
283 return crtc;
284 }
285 return NULL;
286 }
287
288 /**
289 * drm_framebuffer_init - initialize a framebuffer
290 * @dev: DRM device
291 *
292 * LOCKING:
293 * Caller must hold mode config lock.
294 *
295 * Allocates an ID for the framebuffer's parent mode object, sets its mode
296 * functions & device file and adds it to the master fd list.
297 *
298 * RETURNS:
299 * Zero on success, error code on falure.
300 */
301 int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
302 const struct drm_framebuffer_funcs *funcs)
303 {
304 int ret;
305
306 ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
307 if (ret) {
308 return ret;
309 }
310
311 fb->dev = dev;
312 fb->funcs = funcs;
313 dev->mode_config.num_fb++;
314 list_add(&fb->head, &dev->mode_config.fb_list);
315
316 return 0;
317 }
318 EXPORT_SYMBOL(drm_framebuffer_init);
319
320 /**
321 * drm_framebuffer_cleanup - remove a framebuffer object
322 * @fb: framebuffer to remove
323 *
324 * LOCKING:
325 * Caller must hold mode config lock.
326 *
327 * Scans all the CRTCs in @dev's mode_config. If they're using @fb, removes
328 * it, setting it to NULL.
329 */
330 void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
331 {
332 struct drm_device *dev = fb->dev;
333 struct drm_crtc *crtc;
334
335 /* remove from any CRTC */
336 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
337 if (crtc->fb == fb)
338 crtc->fb = NULL;
339 }
340
341 drm_mode_object_put(dev, &fb->base);
342 list_del(&fb->head);
343 dev->mode_config.num_fb--;
344 }
345 EXPORT_SYMBOL(drm_framebuffer_cleanup);
346
347 /**
348 * drm_crtc_init - Initialise a new CRTC object
349 * @dev: DRM device
350 * @crtc: CRTC object to init
351 * @funcs: callbacks for the new CRTC
352 *
353 * LOCKING:
354 * Caller must hold mode config lock.
355 *
356 * Inits a new object created as base part of an driver crtc object.
357 */
358 void drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
359 const struct drm_crtc_funcs *funcs)
360 {
361 crtc->dev = dev;
362 crtc->funcs = funcs;
363
364 mutex_lock(&dev->mode_config.mutex);
365 drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
366
367 list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
368 dev->mode_config.num_crtc++;
369 mutex_unlock(&dev->mode_config.mutex);
370 }
371 EXPORT_SYMBOL(drm_crtc_init);
372
373 /**
374 * drm_crtc_cleanup - Cleans up the core crtc usage.
375 * @crtc: CRTC to cleanup
376 *
377 * LOCKING:
378 * Caller must hold mode config lock.
379 *
380 * Cleanup @crtc. Removes from drm modesetting space
381 * does NOT free object, caller does that.
382 */
383 void drm_crtc_cleanup(struct drm_crtc *crtc)
384 {
385 struct drm_device *dev = crtc->dev;
386
387 if (crtc->gamma_store) {
388 kfree(crtc->gamma_store);
389 crtc->gamma_store = NULL;
390 }
391
392 drm_mode_object_put(dev, &crtc->base);
393 list_del(&crtc->head);
394 dev->mode_config.num_crtc--;
395 }
396 EXPORT_SYMBOL(drm_crtc_cleanup);
397
398 /**
399 * drm_mode_probed_add - add a mode to a connector's probed mode list
400 * @connector: connector the new mode
401 * @mode: mode data
402 *
403 * LOCKING:
404 * Caller must hold mode config lock.
405 *
406 * Add @mode to @connector's mode list for later use.
407 */
408 void drm_mode_probed_add(struct drm_connector *connector,
409 struct drm_display_mode *mode)
410 {
411 list_add(&mode->head, &connector->probed_modes);
412 }
413 EXPORT_SYMBOL(drm_mode_probed_add);
414
415 /**
416 * drm_mode_remove - remove and free a mode
417 * @connector: connector list to modify
418 * @mode: mode to remove
419 *
420 * LOCKING:
421 * Caller must hold mode config lock.
422 *
423 * Remove @mode from @connector's mode list, then free it.
424 */
425 void drm_mode_remove(struct drm_connector *connector,
426 struct drm_display_mode *mode)
427 {
428 list_del(&mode->head);
429 kfree(mode);
430 }
431 EXPORT_SYMBOL(drm_mode_remove);
432
433 /**
434 * drm_connector_init - Init a preallocated connector
435 * @dev: DRM device
436 * @connector: the connector to init
437 * @funcs: callbacks for this connector
438 * @name: user visible name of the connector
439 *
440 * LOCKING:
441 * Caller must hold @dev's mode_config lock.
442 *
443 * Initialises a preallocated connector. Connectors should be
444 * subclassed as part of driver connector objects.
445 */
446 void drm_connector_init(struct drm_device *dev,
447 struct drm_connector *connector,
448 const struct drm_connector_funcs *funcs,
449 int connector_type)
450 {
451 mutex_lock(&dev->mode_config.mutex);
452
453 connector->dev = dev;
454 connector->funcs = funcs;
455 drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
456 connector->connector_type = connector_type;
457 connector->connector_type_id =
458 ++drm_connector_enum_list[connector_type].count; /* TODO */
459 INIT_LIST_HEAD(&connector->user_modes);
460 INIT_LIST_HEAD(&connector->probed_modes);
461 INIT_LIST_HEAD(&connector->modes);
462 connector->edid_blob_ptr = NULL;
463
464 list_add_tail(&connector->head, &dev->mode_config.connector_list);
465 dev->mode_config.num_connector++;
466
467 drm_connector_attach_property(connector,
468 dev->mode_config.edid_property, 0);
469
470 drm_connector_attach_property(connector,
471 dev->mode_config.dpms_property, 0);
472
473 mutex_unlock(&dev->mode_config.mutex);
474 }
475 EXPORT_SYMBOL(drm_connector_init);
476
477 /**
478 * drm_connector_cleanup - cleans up an initialised connector
479 * @connector: connector to cleanup
480 *
481 * LOCKING:
482 * Caller must hold @dev's mode_config lock.
483 *
484 * Cleans up the connector but doesn't free the object.
485 */
486 void drm_connector_cleanup(struct drm_connector *connector)
487 {
488 struct drm_device *dev = connector->dev;
489 struct drm_display_mode *mode, *t;
490
491 list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
492 drm_mode_remove(connector, mode);
493
494 list_for_each_entry_safe(mode, t, &connector->modes, head)
495 drm_mode_remove(connector, mode);
496
497 list_for_each_entry_safe(mode, t, &connector->user_modes, head)
498 drm_mode_remove(connector, mode);
499
500 mutex_lock(&dev->mode_config.mutex);
501 drm_mode_object_put(dev, &connector->base);
502 list_del(&connector->head);
503 mutex_unlock(&dev->mode_config.mutex);
504 }
505 EXPORT_SYMBOL(drm_connector_cleanup);
506
507 void drm_encoder_init(struct drm_device *dev,
508 struct drm_encoder *encoder,
509 const struct drm_encoder_funcs *funcs,
510 int encoder_type)
511 {
512 mutex_lock(&dev->mode_config.mutex);
513
514 encoder->dev = dev;
515
516 drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
517 encoder->encoder_type = encoder_type;
518 encoder->funcs = funcs;
519
520 list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
521 dev->mode_config.num_encoder++;
522
523 mutex_unlock(&dev->mode_config.mutex);
524 }
525 EXPORT_SYMBOL(drm_encoder_init);
526
527 void drm_encoder_cleanup(struct drm_encoder *encoder)
528 {
529 struct drm_device *dev = encoder->dev;
530 mutex_lock(&dev->mode_config.mutex);
531 drm_mode_object_put(dev, &encoder->base);
532 list_del(&encoder->head);
533 mutex_unlock(&dev->mode_config.mutex);
534 }
535 EXPORT_SYMBOL(drm_encoder_cleanup);
536
537 /**
538 * drm_mode_create - create a new display mode
539 * @dev: DRM device
540 *
541 * LOCKING:
542 * Caller must hold DRM mode_config lock.
543 *
544 * Create a new drm_display_mode, give it an ID, and return it.
545 *
546 * RETURNS:
547 * Pointer to new mode on success, NULL on error.
548 */
549 struct drm_display_mode *drm_mode_create(struct drm_device *dev)
550 {
551 struct drm_display_mode *nmode;
552
553 nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
554 if (!nmode)
555 return NULL;
556
557 drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE);
558 return nmode;
559 }
560 EXPORT_SYMBOL(drm_mode_create);
561
562 /**
563 * drm_mode_destroy - remove a mode
564 * @dev: DRM device
565 * @mode: mode to remove
566 *
567 * LOCKING:
568 * Caller must hold mode config lock.
569 *
570 * Free @mode's unique identifier, then free it.
571 */
572 void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
573 {
574 drm_mode_object_put(dev, &mode->base);
575
576 kfree(mode);
577 }
578 EXPORT_SYMBOL(drm_mode_destroy);
579
580 static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
581 {
582 struct drm_property *edid;
583 struct drm_property *dpms;
584 int i;
585
586 /*
587 * Standard properties (apply to all connectors)
588 */
589 edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
590 DRM_MODE_PROP_IMMUTABLE,
591 "EDID", 0);
592 dev->mode_config.edid_property = edid;
593
594 dpms = drm_property_create(dev, DRM_MODE_PROP_ENUM,
595 "DPMS", ARRAY_SIZE(drm_dpms_enum_list));
596 for (i = 0; i < ARRAY_SIZE(drm_dpms_enum_list); i++)
597 drm_property_add_enum(dpms, i, drm_dpms_enum_list[i].type,
598 drm_dpms_enum_list[i].name);
599 dev->mode_config.dpms_property = dpms;
600
601 return 0;
602 }
603
604 /**
605 * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
606 * @dev: DRM device
607 *
608 * Called by a driver the first time a DVI-I connector is made.
609 */
610 int drm_mode_create_dvi_i_properties(struct drm_device *dev)
611 {
612 struct drm_property *dvi_i_selector;
613 struct drm_property *dvi_i_subconnector;
614 int i;
615
616 if (dev->mode_config.dvi_i_select_subconnector_property)
617 return 0;
618
619 dvi_i_selector =
620 drm_property_create(dev, DRM_MODE_PROP_ENUM,
621 "select subconnector",
622 ARRAY_SIZE(drm_dvi_i_select_enum_list));
623 for (i = 0; i < ARRAY_SIZE(drm_dvi_i_select_enum_list); i++)
624 drm_property_add_enum(dvi_i_selector, i,
625 drm_dvi_i_select_enum_list[i].type,
626 drm_dvi_i_select_enum_list[i].name);
627 dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
628
629 dvi_i_subconnector =
630 drm_property_create(dev, DRM_MODE_PROP_ENUM |
631 DRM_MODE_PROP_IMMUTABLE,
632 "subconnector",
633 ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
634 for (i = 0; i < ARRAY_SIZE(drm_dvi_i_subconnector_enum_list); i++)
635 drm_property_add_enum(dvi_i_subconnector, i,
636 drm_dvi_i_subconnector_enum_list[i].type,
637 drm_dvi_i_subconnector_enum_list[i].name);
638 dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
639
640 return 0;
641 }
642 EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
643
644 /**
645 * drm_create_tv_properties - create TV specific connector properties
646 * @dev: DRM device
647 * @num_modes: number of different TV formats (modes) supported
648 * @modes: array of pointers to strings containing name of each format
649 *
650 * Called by a driver's TV initialization routine, this function creates
651 * the TV specific connector properties for a given device. Caller is
652 * responsible for allocating a list of format names and passing them to
653 * this routine.
654 */
655 int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
656 char *modes[])
657 {
658 struct drm_property *tv_selector;
659 struct drm_property *tv_subconnector;
660 int i;
661
662 if (dev->mode_config.tv_select_subconnector_property)
663 return 0;
664
665 /*
666 * Basic connector properties
667 */
668 tv_selector = drm_property_create(dev, DRM_MODE_PROP_ENUM,
669 "select subconnector",
670 ARRAY_SIZE(drm_tv_select_enum_list));
671 for (i = 0; i < ARRAY_SIZE(drm_tv_select_enum_list); i++)
672 drm_property_add_enum(tv_selector, i,
673 drm_tv_select_enum_list[i].type,
674 drm_tv_select_enum_list[i].name);
675 dev->mode_config.tv_select_subconnector_property = tv_selector;
676
677 tv_subconnector =
678 drm_property_create(dev, DRM_MODE_PROP_ENUM |
679 DRM_MODE_PROP_IMMUTABLE, "subconnector",
680 ARRAY_SIZE(drm_tv_subconnector_enum_list));
681 for (i = 0; i < ARRAY_SIZE(drm_tv_subconnector_enum_list); i++)
682 drm_property_add_enum(tv_subconnector, i,
683 drm_tv_subconnector_enum_list[i].type,
684 drm_tv_subconnector_enum_list[i].name);
685 dev->mode_config.tv_subconnector_property = tv_subconnector;
686
687 /*
688 * Other, TV specific properties: margins & TV modes.
689 */
690 dev->mode_config.tv_left_margin_property =
691 drm_property_create(dev, DRM_MODE_PROP_RANGE,
692 "left margin", 2);
693 dev->mode_config.tv_left_margin_property->values[0] = 0;
694 dev->mode_config.tv_left_margin_property->values[1] = 100;
695
696 dev->mode_config.tv_right_margin_property =
697 drm_property_create(dev, DRM_MODE_PROP_RANGE,
698 "right margin", 2);
699 dev->mode_config.tv_right_margin_property->values[0] = 0;
700 dev->mode_config.tv_right_margin_property->values[1] = 100;
701
702 dev->mode_config.tv_top_margin_property =
703 drm_property_create(dev, DRM_MODE_PROP_RANGE,
704 "top margin", 2);
705 dev->mode_config.tv_top_margin_property->values[0] = 0;
706 dev->mode_config.tv_top_margin_property->values[1] = 100;
707
708 dev->mode_config.tv_bottom_margin_property =
709 drm_property_create(dev, DRM_MODE_PROP_RANGE,
710 "bottom margin", 2);
711 dev->mode_config.tv_bottom_margin_property->values[0] = 0;
712 dev->mode_config.tv_bottom_margin_property->values[1] = 100;
713
714 dev->mode_config.tv_mode_property =
715 drm_property_create(dev, DRM_MODE_PROP_ENUM,
716 "mode", num_modes);
717 for (i = 0; i < num_modes; i++)
718 drm_property_add_enum(dev->mode_config.tv_mode_property, i,
719 i, modes[i]);
720
721 dev->mode_config.tv_brightness_property =
722 drm_property_create(dev, DRM_MODE_PROP_RANGE,
723 "brightness", 2);
724 dev->mode_config.tv_brightness_property->values[0] = 0;
725 dev->mode_config.tv_brightness_property->values[1] = 100;
726
727 dev->mode_config.tv_contrast_property =
728 drm_property_create(dev, DRM_MODE_PROP_RANGE,
729 "contrast", 2);
730 dev->mode_config.tv_contrast_property->values[0] = 0;
731 dev->mode_config.tv_contrast_property->values[1] = 100;
732
733 dev->mode_config.tv_flicker_reduction_property =
734 drm_property_create(dev, DRM_MODE_PROP_RANGE,
735 "flicker reduction", 2);
736 dev->mode_config.tv_flicker_reduction_property->values[0] = 0;
737 dev->mode_config.tv_flicker_reduction_property->values[1] = 100;
738
739 return 0;
740 }
741 EXPORT_SYMBOL(drm_mode_create_tv_properties);
742
743 /**
744 * drm_mode_create_scaling_mode_property - create scaling mode property
745 * @dev: DRM device
746 *
747 * Called by a driver the first time it's needed, must be attached to desired
748 * connectors.
749 */
750 int drm_mode_create_scaling_mode_property(struct drm_device *dev)
751 {
752 struct drm_property *scaling_mode;
753 int i;
754
755 if (dev->mode_config.scaling_mode_property)
756 return 0;
757
758 scaling_mode =
759 drm_property_create(dev, DRM_MODE_PROP_ENUM, "scaling mode",
760 ARRAY_SIZE(drm_scaling_mode_enum_list));
761 for (i = 0; i < ARRAY_SIZE(drm_scaling_mode_enum_list); i++)
762 drm_property_add_enum(scaling_mode, i,
763 drm_scaling_mode_enum_list[i].type,
764 drm_scaling_mode_enum_list[i].name);
765
766 dev->mode_config.scaling_mode_property = scaling_mode;
767
768 return 0;
769 }
770 EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
771
772 /**
773 * drm_mode_create_dithering_property - create dithering property
774 * @dev: DRM device
775 *
776 * Called by a driver the first time it's needed, must be attached to desired
777 * connectors.
778 */
779 int drm_mode_create_dithering_property(struct drm_device *dev)
780 {
781 struct drm_property *dithering_mode;
782 int i;
783
784 if (dev->mode_config.dithering_mode_property)
785 return 0;
786
787 dithering_mode =
788 drm_property_create(dev, DRM_MODE_PROP_ENUM, "dithering",
789 ARRAY_SIZE(drm_dithering_mode_enum_list));
790 for (i = 0; i < ARRAY_SIZE(drm_dithering_mode_enum_list); i++)
791 drm_property_add_enum(dithering_mode, i,
792 drm_dithering_mode_enum_list[i].type,
793 drm_dithering_mode_enum_list[i].name);
794 dev->mode_config.dithering_mode_property = dithering_mode;
795
796 return 0;
797 }
798 EXPORT_SYMBOL(drm_mode_create_dithering_property);
799
800 /**
801 * drm_mode_config_init - initialize DRM mode_configuration structure
802 * @dev: DRM device
803 *
804 * LOCKING:
805 * None, should happen single threaded at init time.
806 *
807 * Initialize @dev's mode_config structure, used for tracking the graphics
808 * configuration of @dev.
809 */
810 void drm_mode_config_init(struct drm_device *dev)
811 {
812 mutex_init(&dev->mode_config.mutex);
813 mutex_init(&dev->mode_config.idr_mutex);
814 INIT_LIST_HEAD(&dev->mode_config.fb_list);
815 INIT_LIST_HEAD(&dev->mode_config.fb_kernel_list);
816 INIT_LIST_HEAD(&dev->mode_config.crtc_list);
817 INIT_LIST_HEAD(&dev->mode_config.connector_list);
818 INIT_LIST_HEAD(&dev->mode_config.encoder_list);
819 INIT_LIST_HEAD(&dev->mode_config.property_list);
820 INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
821 idr_init(&dev->mode_config.crtc_idr);
822
823 mutex_lock(&dev->mode_config.mutex);
824 drm_mode_create_standard_connector_properties(dev);
825 mutex_unlock(&dev->mode_config.mutex);
826
827 /* Just to be sure */
828 dev->mode_config.num_fb = 0;
829 dev->mode_config.num_connector = 0;
830 dev->mode_config.num_crtc = 0;
831 dev->mode_config.num_encoder = 0;
832 }
833 EXPORT_SYMBOL(drm_mode_config_init);
834
835 int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
836 {
837 uint32_t total_objects = 0;
838
839 total_objects += dev->mode_config.num_crtc;
840 total_objects += dev->mode_config.num_connector;
841 total_objects += dev->mode_config.num_encoder;
842
843 if (total_objects == 0)
844 return -EINVAL;
845
846 group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
847 if (!group->id_list)
848 return -ENOMEM;
849
850 group->num_crtcs = 0;
851 group->num_connectors = 0;
852 group->num_encoders = 0;
853 return 0;
854 }
855
856 int drm_mode_group_init_legacy_group(struct drm_device *dev,
857 struct drm_mode_group *group)
858 {
859 struct drm_crtc *crtc;
860 struct drm_encoder *encoder;
861 struct drm_connector *connector;
862 int ret;
863
864 if ((ret = drm_mode_group_init(dev, group)))
865 return ret;
866
867 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
868 group->id_list[group->num_crtcs++] = crtc->base.id;
869
870 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
871 group->id_list[group->num_crtcs + group->num_encoders++] =
872 encoder->base.id;
873
874 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
875 group->id_list[group->num_crtcs + group->num_encoders +
876 group->num_connectors++] = connector->base.id;
877
878 return 0;
879 }
880
881 /**
882 * drm_mode_config_cleanup - free up DRM mode_config info
883 * @dev: DRM device
884 *
885 * LOCKING:
886 * Caller must hold mode config lock.
887 *
888 * Free up all the connectors and CRTCs associated with this DRM device, then
889 * free up the framebuffers and associated buffer objects.
890 *
891 * FIXME: cleanup any dangling user buffer objects too
892 */
893 void drm_mode_config_cleanup(struct drm_device *dev)
894 {
895 struct drm_connector *connector, *ot;
896 struct drm_crtc *crtc, *ct;
897 struct drm_encoder *encoder, *enct;
898 struct drm_framebuffer *fb, *fbt;
899 struct drm_property *property, *pt;
900
901 list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
902 head) {
903 encoder->funcs->destroy(encoder);
904 }
905
906 list_for_each_entry_safe(connector, ot,
907 &dev->mode_config.connector_list, head) {
908 connector->funcs->destroy(connector);
909 }
910
911 list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
912 head) {
913 drm_property_destroy(dev, property);
914 }
915
916 list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
917 fb->funcs->destroy(fb);
918 }
919
920 list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
921 crtc->funcs->destroy(crtc);
922 }
923
924 }
925 EXPORT_SYMBOL(drm_mode_config_cleanup);
926
927 /**
928 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
929 * @out: drm_mode_modeinfo struct to return to the user
930 * @in: drm_display_mode to use
931 *
932 * LOCKING:
933 * None.
934 *
935 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
936 * the user.
937 */
938 void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
939 struct drm_display_mode *in)
940 {
941 out->clock = in->clock;
942 out->hdisplay = in->hdisplay;
943 out->hsync_start = in->hsync_start;
944 out->hsync_end = in->hsync_end;
945 out->htotal = in->htotal;
946 out->hskew = in->hskew;
947 out->vdisplay = in->vdisplay;
948 out->vsync_start = in->vsync_start;
949 out->vsync_end = in->vsync_end;
950 out->vtotal = in->vtotal;
951 out->vscan = in->vscan;
952 out->vrefresh = in->vrefresh;
953 out->flags = in->flags;
954 out->type = in->type;
955 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
956 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
957 }
958
959 /**
960 * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
961 * @out: drm_display_mode to return to the user
962 * @in: drm_mode_modeinfo to use
963 *
964 * LOCKING:
965 * None.
966 *
967 * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
968 * the caller.
969 */
970 void drm_crtc_convert_umode(struct drm_display_mode *out,
971 struct drm_mode_modeinfo *in)
972 {
973 out->clock = in->clock;
974 out->hdisplay = in->hdisplay;
975 out->hsync_start = in->hsync_start;
976 out->hsync_end = in->hsync_end;
977 out->htotal = in->htotal;
978 out->hskew = in->hskew;
979 out->vdisplay = in->vdisplay;
980 out->vsync_start = in->vsync_start;
981 out->vsync_end = in->vsync_end;
982 out->vtotal = in->vtotal;
983 out->vscan = in->vscan;
984 out->vrefresh = in->vrefresh;
985 out->flags = in->flags;
986 out->type = in->type;
987 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
988 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
989 }
990
991 /**
992 * drm_mode_getresources - get graphics configuration
993 * @inode: inode from the ioctl
994 * @filp: file * from the ioctl
995 * @cmd: cmd from ioctl
996 * @arg: arg from ioctl
997 *
998 * LOCKING:
999 * Takes mode config lock.
1000 *
1001 * Construct a set of configuration description structures and return
1002 * them to the user, including CRTC, connector and framebuffer configuration.
1003 *
1004 * Called by the user via ioctl.
1005 *
1006 * RETURNS:
1007 * Zero on success, errno on failure.
1008 */
1009 int drm_mode_getresources(struct drm_device *dev, void *data,
1010 struct drm_file *file_priv)
1011 {
1012 struct drm_mode_card_res *card_res = data;
1013 struct list_head *lh;
1014 struct drm_framebuffer *fb;
1015 struct drm_connector *connector;
1016 struct drm_crtc *crtc;
1017 struct drm_encoder *encoder;
1018 int ret = 0;
1019 int connector_count = 0;
1020 int crtc_count = 0;
1021 int fb_count = 0;
1022 int encoder_count = 0;
1023 int copied = 0, i;
1024 uint32_t __user *fb_id;
1025 uint32_t __user *crtc_id;
1026 uint32_t __user *connector_id;
1027 uint32_t __user *encoder_id;
1028 struct drm_mode_group *mode_group;
1029
1030 mutex_lock(&dev->mode_config.mutex);
1031
1032 /*
1033 * For the non-control nodes we need to limit the list of resources
1034 * by IDs in the group list for this node
1035 */
1036 list_for_each(lh, &file_priv->fbs)
1037 fb_count++;
1038
1039 mode_group = &file_priv->master->minor->mode_group;
1040 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1041
1042 list_for_each(lh, &dev->mode_config.crtc_list)
1043 crtc_count++;
1044
1045 list_for_each(lh, &dev->mode_config.connector_list)
1046 connector_count++;
1047
1048 list_for_each(lh, &dev->mode_config.encoder_list)
1049 encoder_count++;
1050 } else {
1051
1052 crtc_count = mode_group->num_crtcs;
1053 connector_count = mode_group->num_connectors;
1054 encoder_count = mode_group->num_encoders;
1055 }
1056
1057 card_res->max_height = dev->mode_config.max_height;
1058 card_res->min_height = dev->mode_config.min_height;
1059 card_res->max_width = dev->mode_config.max_width;
1060 card_res->min_width = dev->mode_config.min_width;
1061
1062 /* handle this in 4 parts */
1063 /* FBs */
1064 if (card_res->count_fbs >= fb_count) {
1065 copied = 0;
1066 fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
1067 list_for_each_entry(fb, &file_priv->fbs, head) {
1068 if (put_user(fb->base.id, fb_id + copied)) {
1069 ret = -EFAULT;
1070 goto out;
1071 }
1072 copied++;
1073 }
1074 }
1075 card_res->count_fbs = fb_count;
1076
1077 /* CRTCs */
1078 if (card_res->count_crtcs >= crtc_count) {
1079 copied = 0;
1080 crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
1081 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1082 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
1083 head) {
1084 DRM_DEBUG_KMS("CRTC ID is %d\n", crtc->base.id);
1085 if (put_user(crtc->base.id, crtc_id + copied)) {
1086 ret = -EFAULT;
1087 goto out;
1088 }
1089 copied++;
1090 }
1091 } else {
1092 for (i = 0; i < mode_group->num_crtcs; i++) {
1093 if (put_user(mode_group->id_list[i],
1094 crtc_id + copied)) {
1095 ret = -EFAULT;
1096 goto out;
1097 }
1098 copied++;
1099 }
1100 }
1101 }
1102 card_res->count_crtcs = crtc_count;
1103
1104 /* Encoders */
1105 if (card_res->count_encoders >= encoder_count) {
1106 copied = 0;
1107 encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
1108 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1109 list_for_each_entry(encoder,
1110 &dev->mode_config.encoder_list,
1111 head) {
1112 DRM_DEBUG_KMS("ENCODER ID is %d\n",
1113 encoder->base.id);
1114 if (put_user(encoder->base.id, encoder_id +
1115 copied)) {
1116 ret = -EFAULT;
1117 goto out;
1118 }
1119 copied++;
1120 }
1121 } else {
1122 for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
1123 if (put_user(mode_group->id_list[i],
1124 encoder_id + copied)) {
1125 ret = -EFAULT;
1126 goto out;
1127 }
1128 copied++;
1129 }
1130
1131 }
1132 }
1133 card_res->count_encoders = encoder_count;
1134
1135 /* Connectors */
1136 if (card_res->count_connectors >= connector_count) {
1137 copied = 0;
1138 connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
1139 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1140 list_for_each_entry(connector,
1141 &dev->mode_config.connector_list,
1142 head) {
1143 DRM_DEBUG_KMS("CONNECTOR ID is %d\n",
1144 connector->base.id);
1145 if (put_user(connector->base.id,
1146 connector_id + copied)) {
1147 ret = -EFAULT;
1148 goto out;
1149 }
1150 copied++;
1151 }
1152 } else {
1153 int start = mode_group->num_crtcs +
1154 mode_group->num_encoders;
1155 for (i = start; i < start + mode_group->num_connectors; i++) {
1156 if (put_user(mode_group->id_list[i],
1157 connector_id + copied)) {
1158 ret = -EFAULT;
1159 goto out;
1160 }
1161 copied++;
1162 }
1163 }
1164 }
1165 card_res->count_connectors = connector_count;
1166
1167 DRM_DEBUG_KMS("Counted %d %d %d\n", card_res->count_crtcs,
1168 card_res->count_connectors, card_res->count_encoders);
1169
1170 out:
1171 mutex_unlock(&dev->mode_config.mutex);
1172 return ret;
1173 }
1174
1175 /**
1176 * drm_mode_getcrtc - get CRTC configuration
1177 * @inode: inode from the ioctl
1178 * @filp: file * from the ioctl
1179 * @cmd: cmd from ioctl
1180 * @arg: arg from ioctl
1181 *
1182 * LOCKING:
1183 * Caller? (FIXME)
1184 *
1185 * Construct a CRTC configuration structure to return to the user.
1186 *
1187 * Called by the user via ioctl.
1188 *
1189 * RETURNS:
1190 * Zero on success, errno on failure.
1191 */
1192 int drm_mode_getcrtc(struct drm_device *dev,
1193 void *data, struct drm_file *file_priv)
1194 {
1195 struct drm_mode_crtc *crtc_resp = data;
1196 struct drm_crtc *crtc;
1197 struct drm_mode_object *obj;
1198 int ret = 0;
1199
1200 mutex_lock(&dev->mode_config.mutex);
1201
1202 obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
1203 DRM_MODE_OBJECT_CRTC);
1204 if (!obj) {
1205 ret = -EINVAL;
1206 goto out;
1207 }
1208 crtc = obj_to_crtc(obj);
1209
1210 crtc_resp->x = crtc->x;
1211 crtc_resp->y = crtc->y;
1212 crtc_resp->gamma_size = crtc->gamma_size;
1213 if (crtc->fb)
1214 crtc_resp->fb_id = crtc->fb->base.id;
1215 else
1216 crtc_resp->fb_id = 0;
1217
1218 if (crtc->enabled) {
1219
1220 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
1221 crtc_resp->mode_valid = 1;
1222
1223 } else {
1224 crtc_resp->mode_valid = 0;
1225 }
1226
1227 out:
1228 mutex_unlock(&dev->mode_config.mutex);
1229 return ret;
1230 }
1231
1232 /**
1233 * drm_mode_getconnector - get connector configuration
1234 * @inode: inode from the ioctl
1235 * @filp: file * from the ioctl
1236 * @cmd: cmd from ioctl
1237 * @arg: arg from ioctl
1238 *
1239 * LOCKING:
1240 * Caller? (FIXME)
1241 *
1242 * Construct a connector configuration structure to return to the user.
1243 *
1244 * Called by the user via ioctl.
1245 *
1246 * RETURNS:
1247 * Zero on success, errno on failure.
1248 */
1249 int drm_mode_getconnector(struct drm_device *dev, void *data,
1250 struct drm_file *file_priv)
1251 {
1252 struct drm_mode_get_connector *out_resp = data;
1253 struct drm_mode_object *obj;
1254 struct drm_connector *connector;
1255 struct drm_display_mode *mode;
1256 int mode_count = 0;
1257 int props_count = 0;
1258 int encoders_count = 0;
1259 int ret = 0;
1260 int copied = 0;
1261 int i;
1262 struct drm_mode_modeinfo u_mode;
1263 struct drm_mode_modeinfo __user *mode_ptr;
1264 uint32_t __user *prop_ptr;
1265 uint64_t __user *prop_values;
1266 uint32_t __user *encoder_ptr;
1267
1268 memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
1269
1270 DRM_DEBUG_KMS("connector id %d:\n", out_resp->connector_id);
1271
1272 mutex_lock(&dev->mode_config.mutex);
1273
1274 obj = drm_mode_object_find(dev, out_resp->connector_id,
1275 DRM_MODE_OBJECT_CONNECTOR);
1276 if (!obj) {
1277 ret = -EINVAL;
1278 goto out;
1279 }
1280 connector = obj_to_connector(obj);
1281
1282 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1283 if (connector->property_ids[i] != 0) {
1284 props_count++;
1285 }
1286 }
1287
1288 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1289 if (connector->encoder_ids[i] != 0) {
1290 encoders_count++;
1291 }
1292 }
1293
1294 if (out_resp->count_modes == 0) {
1295 connector->funcs->fill_modes(connector,
1296 dev->mode_config.max_width,
1297 dev->mode_config.max_height);
1298 }
1299
1300 /* delayed so we get modes regardless of pre-fill_modes state */
1301 list_for_each_entry(mode, &connector->modes, head)
1302 mode_count++;
1303
1304 out_resp->connector_id = connector->base.id;
1305 out_resp->connector_type = connector->connector_type;
1306 out_resp->connector_type_id = connector->connector_type_id;
1307 out_resp->mm_width = connector->display_info.width_mm;
1308 out_resp->mm_height = connector->display_info.height_mm;
1309 out_resp->subpixel = connector->display_info.subpixel_order;
1310 out_resp->connection = connector->status;
1311 if (connector->encoder)
1312 out_resp->encoder_id = connector->encoder->base.id;
1313 else
1314 out_resp->encoder_id = 0;
1315
1316 /*
1317 * This ioctl is called twice, once to determine how much space is
1318 * needed, and the 2nd time to fill it.
1319 */
1320 if ((out_resp->count_modes >= mode_count) && mode_count) {
1321 copied = 0;
1322 mode_ptr = (struct drm_mode_modeinfo *)(unsigned long)out_resp->modes_ptr;
1323 list_for_each_entry(mode, &connector->modes, head) {
1324 drm_crtc_convert_to_umode(&u_mode, mode);
1325 if (copy_to_user(mode_ptr + copied,
1326 &u_mode, sizeof(u_mode))) {
1327 ret = -EFAULT;
1328 goto out;
1329 }
1330 copied++;
1331 }
1332 }
1333 out_resp->count_modes = mode_count;
1334
1335 if ((out_resp->count_props >= props_count) && props_count) {
1336 copied = 0;
1337 prop_ptr = (uint32_t *)(unsigned long)(out_resp->props_ptr);
1338 prop_values = (uint64_t *)(unsigned long)(out_resp->prop_values_ptr);
1339 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1340 if (connector->property_ids[i] != 0) {
1341 if (put_user(connector->property_ids[i],
1342 prop_ptr + copied)) {
1343 ret = -EFAULT;
1344 goto out;
1345 }
1346
1347 if (put_user(connector->property_values[i],
1348 prop_values + copied)) {
1349 ret = -EFAULT;
1350 goto out;
1351 }
1352 copied++;
1353 }
1354 }
1355 }
1356 out_resp->count_props = props_count;
1357
1358 if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
1359 copied = 0;
1360 encoder_ptr = (uint32_t *)(unsigned long)(out_resp->encoders_ptr);
1361 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1362 if (connector->encoder_ids[i] != 0) {
1363 if (put_user(connector->encoder_ids[i],
1364 encoder_ptr + copied)) {
1365 ret = -EFAULT;
1366 goto out;
1367 }
1368 copied++;
1369 }
1370 }
1371 }
1372 out_resp->count_encoders = encoders_count;
1373
1374 out:
1375 mutex_unlock(&dev->mode_config.mutex);
1376 return ret;
1377 }
1378
1379 int drm_mode_getencoder(struct drm_device *dev, void *data,
1380 struct drm_file *file_priv)
1381 {
1382 struct drm_mode_get_encoder *enc_resp = data;
1383 struct drm_mode_object *obj;
1384 struct drm_encoder *encoder;
1385 int ret = 0;
1386
1387 mutex_lock(&dev->mode_config.mutex);
1388 obj = drm_mode_object_find(dev, enc_resp->encoder_id,
1389 DRM_MODE_OBJECT_ENCODER);
1390 if (!obj) {
1391 ret = -EINVAL;
1392 goto out;
1393 }
1394 encoder = obj_to_encoder(obj);
1395
1396 if (encoder->crtc)
1397 enc_resp->crtc_id = encoder->crtc->base.id;
1398 else
1399 enc_resp->crtc_id = 0;
1400 enc_resp->encoder_type = encoder->encoder_type;
1401 enc_resp->encoder_id = encoder->base.id;
1402 enc_resp->possible_crtcs = encoder->possible_crtcs;
1403 enc_resp->possible_clones = encoder->possible_clones;
1404
1405 out:
1406 mutex_unlock(&dev->mode_config.mutex);
1407 return ret;
1408 }
1409
1410 /**
1411 * drm_mode_setcrtc - set CRTC configuration
1412 * @inode: inode from the ioctl
1413 * @filp: file * from the ioctl
1414 * @cmd: cmd from ioctl
1415 * @arg: arg from ioctl
1416 *
1417 * LOCKING:
1418 * Caller? (FIXME)
1419 *
1420 * Build a new CRTC configuration based on user request.
1421 *
1422 * Called by the user via ioctl.
1423 *
1424 * RETURNS:
1425 * Zero on success, errno on failure.
1426 */
1427 int drm_mode_setcrtc(struct drm_device *dev, void *data,
1428 struct drm_file *file_priv)
1429 {
1430 struct drm_mode_config *config = &dev->mode_config;
1431 struct drm_mode_crtc *crtc_req = data;
1432 struct drm_mode_object *obj;
1433 struct drm_crtc *crtc, *crtcfb;
1434 struct drm_connector **connector_set = NULL, *connector;
1435 struct drm_framebuffer *fb = NULL;
1436 struct drm_display_mode *mode = NULL;
1437 struct drm_mode_set set;
1438 uint32_t __user *set_connectors_ptr;
1439 int ret = 0;
1440 int i;
1441
1442 mutex_lock(&dev->mode_config.mutex);
1443 obj = drm_mode_object_find(dev, crtc_req->crtc_id,
1444 DRM_MODE_OBJECT_CRTC);
1445 if (!obj) {
1446 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
1447 ret = -EINVAL;
1448 goto out;
1449 }
1450 crtc = obj_to_crtc(obj);
1451
1452 if (crtc_req->mode_valid) {
1453 /* If we have a mode we need a framebuffer. */
1454 /* If we pass -1, set the mode with the currently bound fb */
1455 if (crtc_req->fb_id == -1) {
1456 list_for_each_entry(crtcfb,
1457 &dev->mode_config.crtc_list, head) {
1458 if (crtcfb == crtc) {
1459 DRM_DEBUG_KMS("Using current fb for "
1460 "setmode\n");
1461 fb = crtc->fb;
1462 }
1463 }
1464 } else {
1465 obj = drm_mode_object_find(dev, crtc_req->fb_id,
1466 DRM_MODE_OBJECT_FB);
1467 if (!obj) {
1468 DRM_DEBUG_KMS("Unknown FB ID%d\n",
1469 crtc_req->fb_id);
1470 ret = -EINVAL;
1471 goto out;
1472 }
1473 fb = obj_to_fb(obj);
1474 }
1475
1476 mode = drm_mode_create(dev);
1477 drm_crtc_convert_umode(mode, &crtc_req->mode);
1478 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
1479 }
1480
1481 if (crtc_req->count_connectors == 0 && mode) {
1482 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
1483 ret = -EINVAL;
1484 goto out;
1485 }
1486
1487 if (crtc_req->count_connectors > 0 && !mode && !fb) {
1488 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
1489 crtc_req->count_connectors);
1490 ret = -EINVAL;
1491 goto out;
1492 }
1493
1494 if (crtc_req->count_connectors > 0) {
1495 u32 out_id;
1496
1497 /* Avoid unbounded kernel memory allocation */
1498 if (crtc_req->count_connectors > config->num_connector) {
1499 ret = -EINVAL;
1500 goto out;
1501 }
1502
1503 connector_set = kmalloc(crtc_req->count_connectors *
1504 sizeof(struct drm_connector *),
1505 GFP_KERNEL);
1506 if (!connector_set) {
1507 ret = -ENOMEM;
1508 goto out;
1509 }
1510
1511 for (i = 0; i < crtc_req->count_connectors; i++) {
1512 set_connectors_ptr = (uint32_t *)(unsigned long)crtc_req->set_connectors_ptr;
1513 if (get_user(out_id, &set_connectors_ptr[i])) {
1514 ret = -EFAULT;
1515 goto out;
1516 }
1517
1518 obj = drm_mode_object_find(dev, out_id,
1519 DRM_MODE_OBJECT_CONNECTOR);
1520 if (!obj) {
1521 DRM_DEBUG_KMS("Connector id %d unknown\n",
1522 out_id);
1523 ret = -EINVAL;
1524 goto out;
1525 }
1526 connector = obj_to_connector(obj);
1527
1528 connector_set[i] = connector;
1529 }
1530 }
1531
1532 set.crtc = crtc;
1533 set.x = crtc_req->x;
1534 set.y = crtc_req->y;
1535 set.mode = mode;
1536 set.connectors = connector_set;
1537 set.num_connectors = crtc_req->count_connectors;
1538 set.fb =fb;
1539 ret = crtc->funcs->set_config(&set);
1540
1541 out:
1542 kfree(connector_set);
1543 mutex_unlock(&dev->mode_config.mutex);
1544 return ret;
1545 }
1546
1547 int drm_mode_cursor_ioctl(struct drm_device *dev,
1548 void *data, struct drm_file *file_priv)
1549 {
1550 struct drm_mode_cursor *req = data;
1551 struct drm_mode_object *obj;
1552 struct drm_crtc *crtc;
1553 int ret = 0;
1554
1555 DRM_DEBUG_KMS("\n");
1556
1557 if (!req->flags) {
1558 DRM_ERROR("no operation set\n");
1559 return -EINVAL;
1560 }
1561
1562 mutex_lock(&dev->mode_config.mutex);
1563 obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
1564 if (!obj) {
1565 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
1566 ret = -EINVAL;
1567 goto out;
1568 }
1569 crtc = obj_to_crtc(obj);
1570
1571 if (req->flags & DRM_MODE_CURSOR_BO) {
1572 if (!crtc->funcs->cursor_set) {
1573 DRM_ERROR("crtc does not support cursor\n");
1574 ret = -ENXIO;
1575 goto out;
1576 }
1577 /* Turns off the cursor if handle is 0 */
1578 ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
1579 req->width, req->height);
1580 }
1581
1582 if (req->flags & DRM_MODE_CURSOR_MOVE) {
1583 if (crtc->funcs->cursor_move) {
1584 ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
1585 } else {
1586 DRM_ERROR("crtc does not support cursor\n");
1587 ret = -EFAULT;
1588 goto out;
1589 }
1590 }
1591 out:
1592 mutex_unlock(&dev->mode_config.mutex);
1593 return ret;
1594 }
1595
1596 /**
1597 * drm_mode_addfb - add an FB to the graphics configuration
1598 * @inode: inode from the ioctl
1599 * @filp: file * from the ioctl
1600 * @cmd: cmd from ioctl
1601 * @arg: arg from ioctl
1602 *
1603 * LOCKING:
1604 * Takes mode config lock.
1605 *
1606 * Add a new FB to the specified CRTC, given a user request.
1607 *
1608 * Called by the user via ioctl.
1609 *
1610 * RETURNS:
1611 * Zero on success, errno on failure.
1612 */
1613 int drm_mode_addfb(struct drm_device *dev,
1614 void *data, struct drm_file *file_priv)
1615 {
1616 struct drm_mode_fb_cmd *r = data;
1617 struct drm_mode_config *config = &dev->mode_config;
1618 struct drm_framebuffer *fb;
1619 int ret = 0;
1620
1621 if ((config->min_width > r->width) || (r->width > config->max_width)) {
1622 DRM_ERROR("mode new framebuffer width not within limits\n");
1623 return -EINVAL;
1624 }
1625 if ((config->min_height > r->height) || (r->height > config->max_height)) {
1626 DRM_ERROR("mode new framebuffer height not within limits\n");
1627 return -EINVAL;
1628 }
1629
1630 mutex_lock(&dev->mode_config.mutex);
1631
1632 /* TODO check buffer is sufficently large */
1633 /* TODO setup destructor callback */
1634
1635 fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
1636 if (!fb) {
1637 DRM_ERROR("could not create framebuffer\n");
1638 ret = -EINVAL;
1639 goto out;
1640 }
1641
1642 r->fb_id = fb->base.id;
1643 list_add(&fb->filp_head, &file_priv->fbs);
1644
1645 out:
1646 mutex_unlock(&dev->mode_config.mutex);
1647 return ret;
1648 }
1649
1650 /**
1651 * drm_mode_rmfb - remove an FB from the configuration
1652 * @inode: inode from the ioctl
1653 * @filp: file * from the ioctl
1654 * @cmd: cmd from ioctl
1655 * @arg: arg from ioctl
1656 *
1657 * LOCKING:
1658 * Takes mode config lock.
1659 *
1660 * Remove the FB specified by the user.
1661 *
1662 * Called by the user via ioctl.
1663 *
1664 * RETURNS:
1665 * Zero on success, errno on failure.
1666 */
1667 int drm_mode_rmfb(struct drm_device *dev,
1668 void *data, struct drm_file *file_priv)
1669 {
1670 struct drm_mode_object *obj;
1671 struct drm_framebuffer *fb = NULL;
1672 struct drm_framebuffer *fbl = NULL;
1673 uint32_t *id = data;
1674 int ret = 0;
1675 int found = 0;
1676
1677 mutex_lock(&dev->mode_config.mutex);
1678 obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB);
1679 /* TODO check that we realy get a framebuffer back. */
1680 if (!obj) {
1681 DRM_ERROR("mode invalid framebuffer id\n");
1682 ret = -EINVAL;
1683 goto out;
1684 }
1685 fb = obj_to_fb(obj);
1686
1687 list_for_each_entry(fbl, &file_priv->fbs, filp_head)
1688 if (fb == fbl)
1689 found = 1;
1690
1691 if (!found) {
1692 DRM_ERROR("tried to remove a fb that we didn't own\n");
1693 ret = -EINVAL;
1694 goto out;
1695 }
1696
1697 /* TODO release all crtc connected to the framebuffer */
1698 /* TODO unhock the destructor from the buffer object */
1699
1700 list_del(&fb->filp_head);
1701 fb->funcs->destroy(fb);
1702
1703 out:
1704 mutex_unlock(&dev->mode_config.mutex);
1705 return ret;
1706 }
1707
1708 /**
1709 * drm_mode_getfb - get FB info
1710 * @inode: inode from the ioctl
1711 * @filp: file * from the ioctl
1712 * @cmd: cmd from ioctl
1713 * @arg: arg from ioctl
1714 *
1715 * LOCKING:
1716 * Caller? (FIXME)
1717 *
1718 * Lookup the FB given its ID and return info about it.
1719 *
1720 * Called by the user via ioctl.
1721 *
1722 * RETURNS:
1723 * Zero on success, errno on failure.
1724 */
1725 int drm_mode_getfb(struct drm_device *dev,
1726 void *data, struct drm_file *file_priv)
1727 {
1728 struct drm_mode_fb_cmd *r = data;
1729 struct drm_mode_object *obj;
1730 struct drm_framebuffer *fb;
1731 int ret = 0;
1732
1733 mutex_lock(&dev->mode_config.mutex);
1734 obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
1735 if (!obj) {
1736 DRM_ERROR("invalid framebuffer id\n");
1737 ret = -EINVAL;
1738 goto out;
1739 }
1740 fb = obj_to_fb(obj);
1741
1742 r->height = fb->height;
1743 r->width = fb->width;
1744 r->depth = fb->depth;
1745 r->bpp = fb->bits_per_pixel;
1746 r->pitch = fb->pitch;
1747 fb->funcs->create_handle(fb, file_priv, &r->handle);
1748
1749 out:
1750 mutex_unlock(&dev->mode_config.mutex);
1751 return ret;
1752 }
1753
1754 /**
1755 * drm_fb_release - remove and free the FBs on this file
1756 * @filp: file * from the ioctl
1757 *
1758 * LOCKING:
1759 * Takes mode config lock.
1760 *
1761 * Destroy all the FBs associated with @filp.
1762 *
1763 * Called by the user via ioctl.
1764 *
1765 * RETURNS:
1766 * Zero on success, errno on failure.
1767 */
1768 void drm_fb_release(struct drm_file *priv)
1769 {
1770 struct drm_device *dev = priv->minor->dev;
1771 struct drm_framebuffer *fb, *tfb;
1772
1773 mutex_lock(&dev->mode_config.mutex);
1774 list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
1775 list_del(&fb->filp_head);
1776 fb->funcs->destroy(fb);
1777 }
1778 mutex_unlock(&dev->mode_config.mutex);
1779 }
1780
1781 /**
1782 * drm_mode_attachmode - add a mode to the user mode list
1783 * @dev: DRM device
1784 * @connector: connector to add the mode to
1785 * @mode: mode to add
1786 *
1787 * Add @mode to @connector's user mode list.
1788 */
1789 static int drm_mode_attachmode(struct drm_device *dev,
1790 struct drm_connector *connector,
1791 struct drm_display_mode *mode)
1792 {
1793 int ret = 0;
1794
1795 list_add_tail(&mode->head, &connector->user_modes);
1796 return ret;
1797 }
1798
1799 int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc,
1800 struct drm_display_mode *mode)
1801 {
1802 struct drm_connector *connector;
1803 int ret = 0;
1804 struct drm_display_mode *dup_mode;
1805 int need_dup = 0;
1806 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1807 if (!connector->encoder)
1808 break;
1809 if (connector->encoder->crtc == crtc) {
1810 if (need_dup)
1811 dup_mode = drm_mode_duplicate(dev, mode);
1812 else
1813 dup_mode = mode;
1814 ret = drm_mode_attachmode(dev, connector, dup_mode);
1815 if (ret)
1816 return ret;
1817 need_dup = 1;
1818 }
1819 }
1820 return 0;
1821 }
1822 EXPORT_SYMBOL(drm_mode_attachmode_crtc);
1823
1824 static int drm_mode_detachmode(struct drm_device *dev,
1825 struct drm_connector *connector,
1826 struct drm_display_mode *mode)
1827 {
1828 int found = 0;
1829 int ret = 0;
1830 struct drm_display_mode *match_mode, *t;
1831
1832 list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) {
1833 if (drm_mode_equal(match_mode, mode)) {
1834 list_del(&match_mode->head);
1835 drm_mode_destroy(dev, match_mode);
1836 found = 1;
1837 break;
1838 }
1839 }
1840
1841 if (!found)
1842 ret = -EINVAL;
1843
1844 return ret;
1845 }
1846
1847 int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode)
1848 {
1849 struct drm_connector *connector;
1850
1851 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1852 drm_mode_detachmode(dev, connector, mode);
1853 }
1854 return 0;
1855 }
1856 EXPORT_SYMBOL(drm_mode_detachmode_crtc);
1857
1858 /**
1859 * drm_fb_attachmode - Attach a user mode to an connector
1860 * @inode: inode from the ioctl
1861 * @filp: file * from the ioctl
1862 * @cmd: cmd from ioctl
1863 * @arg: arg from ioctl
1864 *
1865 * This attaches a user specified mode to an connector.
1866 * Called by the user via ioctl.
1867 *
1868 * RETURNS:
1869 * Zero on success, errno on failure.
1870 */
1871 int drm_mode_attachmode_ioctl(struct drm_device *dev,
1872 void *data, struct drm_file *file_priv)
1873 {
1874 struct drm_mode_mode_cmd *mode_cmd = data;
1875 struct drm_connector *connector;
1876 struct drm_display_mode *mode;
1877 struct drm_mode_object *obj;
1878 struct drm_mode_modeinfo *umode = &mode_cmd->mode;
1879 int ret = 0;
1880
1881 mutex_lock(&dev->mode_config.mutex);
1882
1883 obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
1884 if (!obj) {
1885 ret = -EINVAL;
1886 goto out;
1887 }
1888 connector = obj_to_connector(obj);
1889
1890 mode = drm_mode_create(dev);
1891 if (!mode) {
1892 ret = -ENOMEM;
1893 goto out;
1894 }
1895
1896 drm_crtc_convert_umode(mode, umode);
1897
1898 ret = drm_mode_attachmode(dev, connector, mode);
1899 out:
1900 mutex_unlock(&dev->mode_config.mutex);
1901 return ret;
1902 }
1903
1904
1905 /**
1906 * drm_fb_detachmode - Detach a user specified mode from an connector
1907 * @inode: inode from the ioctl
1908 * @filp: file * from the ioctl
1909 * @cmd: cmd from ioctl
1910 * @arg: arg from ioctl
1911 *
1912 * Called by the user via ioctl.
1913 *
1914 * RETURNS:
1915 * Zero on success, errno on failure.
1916 */
1917 int drm_mode_detachmode_ioctl(struct drm_device *dev,
1918 void *data, struct drm_file *file_priv)
1919 {
1920 struct drm_mode_object *obj;
1921 struct drm_mode_mode_cmd *mode_cmd = data;
1922 struct drm_connector *connector;
1923 struct drm_display_mode mode;
1924 struct drm_mode_modeinfo *umode = &mode_cmd->mode;
1925 int ret = 0;
1926
1927 mutex_lock(&dev->mode_config.mutex);
1928
1929 obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
1930 if (!obj) {
1931 ret = -EINVAL;
1932 goto out;
1933 }
1934 connector = obj_to_connector(obj);
1935
1936 drm_crtc_convert_umode(&mode, umode);
1937 ret = drm_mode_detachmode(dev, connector, &mode);
1938 out:
1939 mutex_unlock(&dev->mode_config.mutex);
1940 return ret;
1941 }
1942
1943 struct drm_property *drm_property_create(struct drm_device *dev, int flags,
1944 const char *name, int num_values)
1945 {
1946 struct drm_property *property = NULL;
1947
1948 property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
1949 if (!property)
1950 return NULL;
1951
1952 if (num_values) {
1953 property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
1954 if (!property->values)
1955 goto fail;
1956 }
1957
1958 drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
1959 property->flags = flags;
1960 property->num_values = num_values;
1961 INIT_LIST_HEAD(&property->enum_blob_list);
1962
1963 if (name)
1964 strncpy(property->name, name, DRM_PROP_NAME_LEN);
1965
1966 list_add_tail(&property->head, &dev->mode_config.property_list);
1967 return property;
1968 fail:
1969 kfree(property);
1970 return NULL;
1971 }
1972 EXPORT_SYMBOL(drm_property_create);
1973
1974 int drm_property_add_enum(struct drm_property *property, int index,
1975 uint64_t value, const char *name)
1976 {
1977 struct drm_property_enum *prop_enum;
1978
1979 if (!(property->flags & DRM_MODE_PROP_ENUM))
1980 return -EINVAL;
1981
1982 if (!list_empty(&property->enum_blob_list)) {
1983 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
1984 if (prop_enum->value == value) {
1985 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
1986 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
1987 return 0;
1988 }
1989 }
1990 }
1991
1992 prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
1993 if (!prop_enum)
1994 return -ENOMEM;
1995
1996 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
1997 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
1998 prop_enum->value = value;
1999
2000 property->values[index] = value;
2001 list_add_tail(&prop_enum->head, &property->enum_blob_list);
2002 return 0;
2003 }
2004 EXPORT_SYMBOL(drm_property_add_enum);
2005
2006 void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
2007 {
2008 struct drm_property_enum *prop_enum, *pt;
2009
2010 list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
2011 list_del(&prop_enum->head);
2012 kfree(prop_enum);
2013 }
2014
2015 if (property->num_values)
2016 kfree(property->values);
2017 drm_mode_object_put(dev, &property->base);
2018 list_del(&property->head);
2019 kfree(property);
2020 }
2021 EXPORT_SYMBOL(drm_property_destroy);
2022
2023 int drm_connector_attach_property(struct drm_connector *connector,
2024 struct drm_property *property, uint64_t init_val)
2025 {
2026 int i;
2027
2028 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2029 if (connector->property_ids[i] == 0) {
2030 connector->property_ids[i] = property->base.id;
2031 connector->property_values[i] = init_val;
2032 break;
2033 }
2034 }
2035
2036 if (i == DRM_CONNECTOR_MAX_PROPERTY)
2037 return -EINVAL;
2038 return 0;
2039 }
2040 EXPORT_SYMBOL(drm_connector_attach_property);
2041
2042 int drm_connector_property_set_value(struct drm_connector *connector,
2043 struct drm_property *property, uint64_t value)
2044 {
2045 int i;
2046
2047 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2048 if (connector->property_ids[i] == property->base.id) {
2049 connector->property_values[i] = value;
2050 break;
2051 }
2052 }
2053
2054 if (i == DRM_CONNECTOR_MAX_PROPERTY)
2055 return -EINVAL;
2056 return 0;
2057 }
2058 EXPORT_SYMBOL(drm_connector_property_set_value);
2059
2060 int drm_connector_property_get_value(struct drm_connector *connector,
2061 struct drm_property *property, uint64_t *val)
2062 {
2063 int i;
2064
2065 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2066 if (connector->property_ids[i] == property->base.id) {
2067 *val = connector->property_values[i];
2068 break;
2069 }
2070 }
2071
2072 if (i == DRM_CONNECTOR_MAX_PROPERTY)
2073 return -EINVAL;
2074 return 0;
2075 }
2076 EXPORT_SYMBOL(drm_connector_property_get_value);
2077
2078 int drm_mode_getproperty_ioctl(struct drm_device *dev,
2079 void *data, struct drm_file *file_priv)
2080 {
2081 struct drm_mode_object *obj;
2082 struct drm_mode_get_property *out_resp = data;
2083 struct drm_property *property;
2084 int enum_count = 0;
2085 int blob_count = 0;
2086 int value_count = 0;
2087 int ret = 0, i;
2088 int copied;
2089 struct drm_property_enum *prop_enum;
2090 struct drm_mode_property_enum __user *enum_ptr;
2091 struct drm_property_blob *prop_blob;
2092 uint32_t *blob_id_ptr;
2093 uint64_t __user *values_ptr;
2094 uint32_t __user *blob_length_ptr;
2095
2096 mutex_lock(&dev->mode_config.mutex);
2097 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2098 if (!obj) {
2099 ret = -EINVAL;
2100 goto done;
2101 }
2102 property = obj_to_property(obj);
2103
2104 if (property->flags & DRM_MODE_PROP_ENUM) {
2105 list_for_each_entry(prop_enum, &property->enum_blob_list, head)
2106 enum_count++;
2107 } else if (property->flags & DRM_MODE_PROP_BLOB) {
2108 list_for_each_entry(prop_blob, &property->enum_blob_list, head)
2109 blob_count++;
2110 }
2111
2112 value_count = property->num_values;
2113
2114 strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
2115 out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
2116 out_resp->flags = property->flags;
2117
2118 if ((out_resp->count_values >= value_count) && value_count) {
2119 values_ptr = (uint64_t *)(unsigned long)out_resp->values_ptr;
2120 for (i = 0; i < value_count; i++) {
2121 if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
2122 ret = -EFAULT;
2123 goto done;
2124 }
2125 }
2126 }
2127 out_resp->count_values = value_count;
2128
2129 if (property->flags & DRM_MODE_PROP_ENUM) {
2130 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
2131 copied = 0;
2132 enum_ptr = (struct drm_mode_property_enum *)(unsigned long)out_resp->enum_blob_ptr;
2133 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2134
2135 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
2136 ret = -EFAULT;
2137 goto done;
2138 }
2139
2140 if (copy_to_user(&enum_ptr[copied].name,
2141 &prop_enum->name, DRM_PROP_NAME_LEN)) {
2142 ret = -EFAULT;
2143 goto done;
2144 }
2145 copied++;
2146 }
2147 }
2148 out_resp->count_enum_blobs = enum_count;
2149 }
2150
2151 if (property->flags & DRM_MODE_PROP_BLOB) {
2152 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
2153 copied = 0;
2154 blob_id_ptr = (uint32_t *)(unsigned long)out_resp->enum_blob_ptr;
2155 blob_length_ptr = (uint32_t *)(unsigned long)out_resp->values_ptr;
2156
2157 list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
2158 if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
2159 ret = -EFAULT;
2160 goto done;
2161 }
2162
2163 if (put_user(prop_blob->length, blob_length_ptr + copied)) {
2164 ret = -EFAULT;
2165 goto done;
2166 }
2167
2168 copied++;
2169 }
2170 }
2171 out_resp->count_enum_blobs = blob_count;
2172 }
2173 done:
2174 mutex_unlock(&dev->mode_config.mutex);
2175 return ret;
2176 }
2177
2178 static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
2179 void *data)
2180 {
2181 struct drm_property_blob *blob;
2182
2183 if (!length || !data)
2184 return NULL;
2185
2186 blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
2187 if (!blob)
2188 return NULL;
2189
2190 blob->data = (void *)((char *)blob + sizeof(struct drm_property_blob));
2191 blob->length = length;
2192
2193 memcpy(blob->data, data, length);
2194
2195 drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
2196
2197 list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
2198 return blob;
2199 }
2200
2201 static void drm_property_destroy_blob(struct drm_device *dev,
2202 struct drm_property_blob *blob)
2203 {
2204 drm_mode_object_put(dev, &blob->base);
2205 list_del(&blob->head);
2206 kfree(blob);
2207 }
2208
2209 int drm_mode_getblob_ioctl(struct drm_device *dev,
2210 void *data, struct drm_file *file_priv)
2211 {
2212 struct drm_mode_object *obj;
2213 struct drm_mode_get_blob *out_resp = data;
2214 struct drm_property_blob *blob;
2215 int ret = 0;
2216 void *blob_ptr;
2217
2218 mutex_lock(&dev->mode_config.mutex);
2219 obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
2220 if (!obj) {
2221 ret = -EINVAL;
2222 goto done;
2223 }
2224 blob = obj_to_blob(obj);
2225
2226 if (out_resp->length == blob->length) {
2227 blob_ptr = (void *)(unsigned long)out_resp->data;
2228 if (copy_to_user(blob_ptr, blob->data, blob->length)){
2229 ret = -EFAULT;
2230 goto done;
2231 }
2232 }
2233 out_resp->length = blob->length;
2234
2235 done:
2236 mutex_unlock(&dev->mode_config.mutex);
2237 return ret;
2238 }
2239
2240 int drm_mode_connector_update_edid_property(struct drm_connector *connector,
2241 struct edid *edid)
2242 {
2243 struct drm_device *dev = connector->dev;
2244 int ret = 0;
2245
2246 if (connector->edid_blob_ptr)
2247 drm_property_destroy_blob(dev, connector->edid_blob_ptr);
2248
2249 /* Delete edid, when there is none. */
2250 if (!edid) {
2251 connector->edid_blob_ptr = NULL;
2252 ret = drm_connector_property_set_value(connector, dev->mode_config.edid_property, 0);
2253 return ret;
2254 }
2255
2256 connector->edid_blob_ptr = drm_property_create_blob(connector->dev, 128, edid);
2257
2258 ret = drm_connector_property_set_value(connector,
2259 dev->mode_config.edid_property,
2260 connector->edid_blob_ptr->base.id);
2261
2262 return ret;
2263 }
2264 EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
2265
2266 int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
2267 void *data, struct drm_file *file_priv)
2268 {
2269 struct drm_mode_connector_set_property *out_resp = data;
2270 struct drm_mode_object *obj;
2271 struct drm_property *property;
2272 struct drm_connector *connector;
2273 int ret = -EINVAL;
2274 int i;
2275
2276 mutex_lock(&dev->mode_config.mutex);
2277
2278 obj = drm_mode_object_find(dev, out_resp->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2279 if (!obj) {
2280 goto out;
2281 }
2282 connector = obj_to_connector(obj);
2283
2284 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2285 if (connector->property_ids[i] == out_resp->prop_id)
2286 break;
2287 }
2288
2289 if (i == DRM_CONNECTOR_MAX_PROPERTY) {
2290 goto out;
2291 }
2292
2293 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2294 if (!obj) {
2295 goto out;
2296 }
2297 property = obj_to_property(obj);
2298
2299 if (property->flags & DRM_MODE_PROP_IMMUTABLE)
2300 goto out;
2301
2302 if (property->flags & DRM_MODE_PROP_RANGE) {
2303 if (out_resp->value < property->values[0])
2304 goto out;
2305
2306 if (out_resp->value > property->values[1])
2307 goto out;
2308 } else {
2309 int found = 0;
2310 for (i = 0; i < property->num_values; i++) {
2311 if (property->values[i] == out_resp->value) {
2312 found = 1;
2313 break;
2314 }
2315 }
2316 if (!found) {
2317 goto out;
2318 }
2319 }
2320
2321 /* Do DPMS ourselves */
2322 if (property == connector->dev->mode_config.dpms_property) {
2323 if (connector->funcs->dpms)
2324 (*connector->funcs->dpms)(connector, (int) out_resp->value);
2325 ret = 0;
2326 } else if (connector->funcs->set_property)
2327 ret = connector->funcs->set_property(connector, property, out_resp->value);
2328
2329 /* store the property value if succesful */
2330 if (!ret)
2331 drm_connector_property_set_value(connector, property, out_resp->value);
2332 out:
2333 mutex_unlock(&dev->mode_config.mutex);
2334 return ret;
2335 }
2336
2337 int drm_mode_connector_attach_encoder(struct drm_connector *connector,
2338 struct drm_encoder *encoder)
2339 {
2340 int i;
2341
2342 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
2343 if (connector->encoder_ids[i] == 0) {
2344 connector->encoder_ids[i] = encoder->base.id;
2345 return 0;
2346 }
2347 }
2348 return -ENOMEM;
2349 }
2350 EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
2351
2352 void drm_mode_connector_detach_encoder(struct drm_connector *connector,
2353 struct drm_encoder *encoder)
2354 {
2355 int i;
2356 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
2357 if (connector->encoder_ids[i] == encoder->base.id) {
2358 connector->encoder_ids[i] = 0;
2359 if (connector->encoder == encoder)
2360 connector->encoder = NULL;
2361 break;
2362 }
2363 }
2364 }
2365 EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
2366
2367 bool drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
2368 int gamma_size)
2369 {
2370 crtc->gamma_size = gamma_size;
2371
2372 crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
2373 if (!crtc->gamma_store) {
2374 crtc->gamma_size = 0;
2375 return false;
2376 }
2377
2378 return true;
2379 }
2380 EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
2381
2382 int drm_mode_gamma_set_ioctl(struct drm_device *dev,
2383 void *data, struct drm_file *file_priv)
2384 {
2385 struct drm_mode_crtc_lut *crtc_lut = data;
2386 struct drm_mode_object *obj;
2387 struct drm_crtc *crtc;
2388 void *r_base, *g_base, *b_base;
2389 int size;
2390 int ret = 0;
2391
2392 mutex_lock(&dev->mode_config.mutex);
2393 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
2394 if (!obj) {
2395 ret = -EINVAL;
2396 goto out;
2397 }
2398 crtc = obj_to_crtc(obj);
2399
2400 /* memcpy into gamma store */
2401 if (crtc_lut->gamma_size != crtc->gamma_size) {
2402 ret = -EINVAL;
2403 goto out;
2404 }
2405
2406 size = crtc_lut->gamma_size * (sizeof(uint16_t));
2407 r_base = crtc->gamma_store;
2408 if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
2409 ret = -EFAULT;
2410 goto out;
2411 }
2412
2413 g_base = r_base + size;
2414 if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
2415 ret = -EFAULT;
2416 goto out;
2417 }
2418
2419 b_base = g_base + size;
2420 if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
2421 ret = -EFAULT;
2422 goto out;
2423 }
2424
2425 crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, crtc->gamma_size);
2426
2427 out:
2428 mutex_unlock(&dev->mode_config.mutex);
2429 return ret;
2430
2431 }
2432
2433 int drm_mode_gamma_get_ioctl(struct drm_device *dev,
2434 void *data, struct drm_file *file_priv)
2435 {
2436 struct drm_mode_crtc_lut *crtc_lut = data;
2437 struct drm_mode_object *obj;
2438 struct drm_crtc *crtc;
2439 void *r_base, *g_base, *b_base;
2440 int size;
2441 int ret = 0;
2442
2443 mutex_lock(&dev->mode_config.mutex);
2444 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
2445 if (!obj) {
2446 ret = -EINVAL;
2447 goto out;
2448 }
2449 crtc = obj_to_crtc(obj);
2450
2451 /* memcpy into gamma store */
2452 if (crtc_lut->gamma_size != crtc->gamma_size) {
2453 ret = -EINVAL;
2454 goto out;
2455 }
2456
2457 size = crtc_lut->gamma_size * (sizeof(uint16_t));
2458 r_base = crtc->gamma_store;
2459 if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
2460 ret = -EFAULT;
2461 goto out;
2462 }
2463
2464 g_base = r_base + size;
2465 if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
2466 ret = -EFAULT;
2467 goto out;
2468 }
2469
2470 b_base = g_base + size;
2471 if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
2472 ret = -EFAULT;
2473 goto out;
2474 }
2475 out:
2476 mutex_unlock(&dev->mode_config.mutex);
2477 return ret;
2478 }
Linux kernel - Deliverables
This page took 0.121997 seconds and 6 git commands to generate.