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powerpc: use consistent types in mktree
[zen-stable.git] / drivers / gpu / drm / drm_crtc.c
blob33be210d6723564fd9cf9052b117f2c455cf9073
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 };
112
113 DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list)
114
115 static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] =
116 {
117 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
118 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
119 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
120 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
121 };
122
123 DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
124 drm_tv_subconnector_enum_list)
125
126 struct drm_conn_prop_enum_list {
127 int type;
128 char *name;
129 int count;
130 };
131
132 /*
133 * Connector and encoder types.
134 */
135 static struct drm_conn_prop_enum_list drm_connector_enum_list[] =
136 { { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 },
137 { DRM_MODE_CONNECTOR_VGA, "VGA", 0 },
138 { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 },
139 { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 },
140 { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 },
141 { DRM_MODE_CONNECTOR_Composite, "Composite", 0 },
142 { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 },
143 { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 },
144 { DRM_MODE_CONNECTOR_Component, "Component", 0 },
145 { DRM_MODE_CONNECTOR_9PinDIN, "9-pin DIN", 0 },
146 { DRM_MODE_CONNECTOR_DisplayPort, "DisplayPort", 0 },
147 { DRM_MODE_CONNECTOR_HDMIA, "HDMI Type A", 0 },
148 { DRM_MODE_CONNECTOR_HDMIB, "HDMI Type B", 0 },
149 };
150
151 static struct drm_prop_enum_list drm_encoder_enum_list[] =
152 { { DRM_MODE_ENCODER_NONE, "None" },
153 { DRM_MODE_ENCODER_DAC, "DAC" },
154 { DRM_MODE_ENCODER_TMDS, "TMDS" },
155 { DRM_MODE_ENCODER_LVDS, "LVDS" },
156 { DRM_MODE_ENCODER_TVDAC, "TV" },
157 };
158
159 char *drm_get_encoder_name(struct drm_encoder *encoder)
160 {
161 static char buf[32];
162
163 snprintf(buf, 32, "%s-%d",
164 drm_encoder_enum_list[encoder->encoder_type].name,
165 encoder->base.id);
166 return buf;
167 }
168
169 char *drm_get_connector_name(struct drm_connector *connector)
170 {
171 static char buf[32];
172
173 snprintf(buf, 32, "%s-%d",
174 drm_connector_enum_list[connector->connector_type].name,
175 connector->connector_type_id);
176 return buf;
177 }
178 EXPORT_SYMBOL(drm_get_connector_name);
179
180 char *drm_get_connector_status_name(enum drm_connector_status status)
181 {
182 if (status == connector_status_connected)
183 return "connected";
184 else if (status == connector_status_disconnected)
185 return "disconnected";
186 else
187 return "unknown";
188 }
189
190 /**
191 * drm_mode_object_get - allocate a new identifier
192 * @dev: DRM device
193 * @ptr: object pointer, used to generate unique ID
194 * @type: object type
195 *
196 * LOCKING:
197 *
198 * Create a unique identifier based on @ptr in @dev's identifier space. Used
199 * for tracking modes, CRTCs and connectors.
200 *
201 * RETURNS:
202 * New unique (relative to other objects in @dev) integer identifier for the
203 * object.
204 */
205 static int drm_mode_object_get(struct drm_device *dev,
206 struct drm_mode_object *obj, uint32_t obj_type)
207 {
208 int new_id = 0;
209 int ret;
210
211 again:
212 if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) {
213 DRM_ERROR("Ran out memory getting a mode number\n");
214 return -EINVAL;
215 }
216
217 mutex_lock(&dev->mode_config.idr_mutex);
218 ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id);
219 mutex_unlock(&dev->mode_config.idr_mutex);
220 if (ret == -EAGAIN)
221 goto again;
222
223 obj->id = new_id;
224 obj->type = obj_type;
225 return 0;
226 }
227
228 /**
229 * drm_mode_object_put - free an identifer
230 * @dev: DRM device
231 * @id: ID to free
232 *
233 * LOCKING:
234 * Caller must hold DRM mode_config lock.
235 *
236 * Free @id from @dev's unique identifier pool.
237 */
238 static void drm_mode_object_put(struct drm_device *dev,
239 struct drm_mode_object *object)
240 {
241 mutex_lock(&dev->mode_config.idr_mutex);
242 idr_remove(&dev->mode_config.crtc_idr, object->id);
243 mutex_unlock(&dev->mode_config.idr_mutex);
244 }
245
246 void *drm_mode_object_find(struct drm_device *dev, uint32_t id, uint32_t type)
247 {
248 struct drm_mode_object *obj = NULL;
249
250 mutex_lock(&dev->mode_config.idr_mutex);
251 obj = idr_find(&dev->mode_config.crtc_idr, id);
252 if (!obj || (obj->type != type) || (obj->id != id))
253 obj = NULL;
254 mutex_unlock(&dev->mode_config.idr_mutex);
255
256 return obj;
257 }
258 EXPORT_SYMBOL(drm_mode_object_find);
259
260 /**
261 * drm_crtc_from_fb - find the CRTC structure associated with an fb
262 * @dev: DRM device
263 * @fb: framebuffer in question
264 *
265 * LOCKING:
266 * Caller must hold mode_config lock.
267 *
268 * Find CRTC in the mode_config structure that matches @fb.
269 *
270 * RETURNS:
271 * Pointer to the CRTC or NULL if it wasn't found.
272 */
273 struct drm_crtc *drm_crtc_from_fb(struct drm_device *dev,
274 struct drm_framebuffer *fb)
275 {
276 struct drm_crtc *crtc;
277
278 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
279 if (crtc->fb == fb)
280 return crtc;
281 }
282 return NULL;
283 }
284
285 /**
286 * drm_framebuffer_init - initialize a framebuffer
287 * @dev: DRM device
288 *
289 * LOCKING:
290 * Caller must hold mode config lock.
291 *
292 * Allocates an ID for the framebuffer's parent mode object, sets its mode
293 * functions & device file and adds it to the master fd list.
294 *
295 * RETURNS:
296 * Zero on success, error code on falure.
297 */
298 int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
299 const struct drm_framebuffer_funcs *funcs)
300 {
301 int ret;
302
303 ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
304 if (ret) {
305 return ret;
306 }
307
308 fb->dev = dev;
309 fb->funcs = funcs;
310 dev->mode_config.num_fb++;
311 list_add(&fb->head, &dev->mode_config.fb_list);
312
313 return 0;
314 }
315 EXPORT_SYMBOL(drm_framebuffer_init);
316
317 /**
318 * drm_framebuffer_cleanup - remove a framebuffer object
319 * @fb: framebuffer to remove
320 *
321 * LOCKING:
322 * Caller must hold mode config lock.
323 *
324 * Scans all the CRTCs in @dev's mode_config. If they're using @fb, removes
325 * it, setting it to NULL.
326 */
327 void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
328 {
329 struct drm_device *dev = fb->dev;
330 struct drm_crtc *crtc;
331
332 /* remove from any CRTC */
333 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
334 if (crtc->fb == fb)
335 crtc->fb = NULL;
336 }
337
338 drm_mode_object_put(dev, &fb->base);
339 list_del(&fb->head);
340 dev->mode_config.num_fb--;
341 }
342 EXPORT_SYMBOL(drm_framebuffer_cleanup);
343
344 /**
345 * drm_crtc_init - Initialise a new CRTC object
346 * @dev: DRM device
347 * @crtc: CRTC object to init
348 * @funcs: callbacks for the new CRTC
349 *
350 * LOCKING:
351 * Caller must hold mode config lock.
352 *
353 * Inits a new object created as base part of an driver crtc object.
354 */
355 void drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
356 const struct drm_crtc_funcs *funcs)
357 {
358 crtc->dev = dev;
359 crtc->funcs = funcs;
360
361 mutex_lock(&dev->mode_config.mutex);
362 drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
363
364 list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
365 dev->mode_config.num_crtc++;
366 mutex_unlock(&dev->mode_config.mutex);
367 }
368 EXPORT_SYMBOL(drm_crtc_init);
369
370 /**
371 * drm_crtc_cleanup - Cleans up the core crtc usage.
372 * @crtc: CRTC to cleanup
373 *
374 * LOCKING:
375 * Caller must hold mode config lock.
376 *
377 * Cleanup @crtc. Removes from drm modesetting space
378 * does NOT free object, caller does that.
379 */
380 void drm_crtc_cleanup(struct drm_crtc *crtc)
381 {
382 struct drm_device *dev = crtc->dev;
383
384 if (crtc->gamma_store) {
385 kfree(crtc->gamma_store);
386 crtc->gamma_store = NULL;
387 }
388
389 drm_mode_object_put(dev, &crtc->base);
390 list_del(&crtc->head);
391 dev->mode_config.num_crtc--;
392 }
393 EXPORT_SYMBOL(drm_crtc_cleanup);
394
395 /**
396 * drm_mode_probed_add - add a mode to a connector's probed mode list
397 * @connector: connector the new mode
398 * @mode: mode data
399 *
400 * LOCKING:
401 * Caller must hold mode config lock.
402 *
403 * Add @mode to @connector's mode list for later use.
404 */
405 void drm_mode_probed_add(struct drm_connector *connector,
406 struct drm_display_mode *mode)
407 {
408 list_add(&mode->head, &connector->probed_modes);
409 }
410 EXPORT_SYMBOL(drm_mode_probed_add);
411
412 /**
413 * drm_mode_remove - remove and free a mode
414 * @connector: connector list to modify
415 * @mode: mode to remove
416 *
417 * LOCKING:
418 * Caller must hold mode config lock.
419 *
420 * Remove @mode from @connector's mode list, then free it.
421 */
422 void drm_mode_remove(struct drm_connector *connector,
423 struct drm_display_mode *mode)
424 {
425 list_del(&mode->head);
426 kfree(mode);
427 }
428 EXPORT_SYMBOL(drm_mode_remove);
429
430 /**
431 * drm_connector_init - Init a preallocated connector
432 * @dev: DRM device
433 * @connector: the connector to init
434 * @funcs: callbacks for this connector
435 * @name: user visible name of the connector
436 *
437 * LOCKING:
438 * Caller must hold @dev's mode_config lock.
439 *
440 * Initialises a preallocated connector. Connectors should be
441 * subclassed as part of driver connector objects.
442 */
443 void drm_connector_init(struct drm_device *dev,
444 struct drm_connector *connector,
445 const struct drm_connector_funcs *funcs,
446 int connector_type)
447 {
448 mutex_lock(&dev->mode_config.mutex);
449
450 connector->dev = dev;
451 connector->funcs = funcs;
452 drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
453 connector->connector_type = connector_type;
454 connector->connector_type_id =
455 ++drm_connector_enum_list[connector_type].count; /* TODO */
456 INIT_LIST_HEAD(&connector->user_modes);
457 INIT_LIST_HEAD(&connector->probed_modes);
458 INIT_LIST_HEAD(&connector->modes);
459 connector->edid_blob_ptr = NULL;
460
461 list_add_tail(&connector->head, &dev->mode_config.connector_list);
462 dev->mode_config.num_connector++;
463
464 drm_connector_attach_property(connector,
465 dev->mode_config.edid_property, 0);
466
467 drm_connector_attach_property(connector,
468 dev->mode_config.dpms_property, 0);
469
470 mutex_unlock(&dev->mode_config.mutex);
471 }
472 EXPORT_SYMBOL(drm_connector_init);
473
474 /**
475 * drm_connector_cleanup - cleans up an initialised connector
476 * @connector: connector to cleanup
477 *
478 * LOCKING:
479 * Caller must hold @dev's mode_config lock.
480 *
481 * Cleans up the connector but doesn't free the object.
482 */
483 void drm_connector_cleanup(struct drm_connector *connector)
484 {
485 struct drm_device *dev = connector->dev;
486 struct drm_display_mode *mode, *t;
487
488 list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
489 drm_mode_remove(connector, mode);
490
491 list_for_each_entry_safe(mode, t, &connector->modes, head)
492 drm_mode_remove(connector, mode);
493
494 list_for_each_entry_safe(mode, t, &connector->user_modes, head)
495 drm_mode_remove(connector, mode);
496
497 mutex_lock(&dev->mode_config.mutex);
498 drm_mode_object_put(dev, &connector->base);
499 list_del(&connector->head);
500 mutex_unlock(&dev->mode_config.mutex);
501 }
502 EXPORT_SYMBOL(drm_connector_cleanup);
503
504 void drm_encoder_init(struct drm_device *dev,
505 struct drm_encoder *encoder,
506 const struct drm_encoder_funcs *funcs,
507 int encoder_type)
508 {
509 mutex_lock(&dev->mode_config.mutex);
510
511 encoder->dev = dev;
512
513 drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
514 encoder->encoder_type = encoder_type;
515 encoder->funcs = funcs;
516
517 list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
518 dev->mode_config.num_encoder++;
519
520 mutex_unlock(&dev->mode_config.mutex);
521 }
522 EXPORT_SYMBOL(drm_encoder_init);
523
524 void drm_encoder_cleanup(struct drm_encoder *encoder)
525 {
526 struct drm_device *dev = encoder->dev;
527 mutex_lock(&dev->mode_config.mutex);
528 drm_mode_object_put(dev, &encoder->base);
529 list_del(&encoder->head);
530 mutex_unlock(&dev->mode_config.mutex);
531 }
532 EXPORT_SYMBOL(drm_encoder_cleanup);
533
534 /**
535 * drm_mode_create - create a new display mode
536 * @dev: DRM device
537 *
538 * LOCKING:
539 * Caller must hold DRM mode_config lock.
540 *
541 * Create a new drm_display_mode, give it an ID, and return it.
542 *
543 * RETURNS:
544 * Pointer to new mode on success, NULL on error.
545 */
546 struct drm_display_mode *drm_mode_create(struct drm_device *dev)
547 {
548 struct drm_display_mode *nmode;
549
550 nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
551 if (!nmode)
552 return NULL;
553
554 drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE);
555 return nmode;
556 }
557 EXPORT_SYMBOL(drm_mode_create);
558
559 /**
560 * drm_mode_destroy - remove a mode
561 * @dev: DRM device
562 * @mode: mode to remove
563 *
564 * LOCKING:
565 * Caller must hold mode config lock.
566 *
567 * Free @mode's unique identifier, then free it.
568 */
569 void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
570 {
571 drm_mode_object_put(dev, &mode->base);
572
573 kfree(mode);
574 }
575 EXPORT_SYMBOL(drm_mode_destroy);
576
577 static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
578 {
579 struct drm_property *edid;
580 struct drm_property *dpms;
581 int i;
582
583 /*
584 * Standard properties (apply to all connectors)
585 */
586 edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
587 DRM_MODE_PROP_IMMUTABLE,
588 "EDID", 0);
589 dev->mode_config.edid_property = edid;
590
591 dpms = drm_property_create(dev, DRM_MODE_PROP_ENUM,
592 "DPMS", ARRAY_SIZE(drm_dpms_enum_list));
593 for (i = 0; i < ARRAY_SIZE(drm_dpms_enum_list); i++)
594 drm_property_add_enum(dpms, i, drm_dpms_enum_list[i].type,
595 drm_dpms_enum_list[i].name);
596 dev->mode_config.dpms_property = dpms;
597
598 return 0;
599 }
600
601 /**
602 * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
603 * @dev: DRM device
604 *
605 * Called by a driver the first time a DVI-I connector is made.
606 */
607 int drm_mode_create_dvi_i_properties(struct drm_device *dev)
608 {
609 struct drm_property *dvi_i_selector;
610 struct drm_property *dvi_i_subconnector;
611 int i;
612
613 if (dev->mode_config.dvi_i_select_subconnector_property)
614 return 0;
615
616 dvi_i_selector =
617 drm_property_create(dev, DRM_MODE_PROP_ENUM,
618 "select subconnector",
619 ARRAY_SIZE(drm_dvi_i_select_enum_list));
620 for (i = 0; i < ARRAY_SIZE(drm_dvi_i_select_enum_list); i++)
621 drm_property_add_enum(dvi_i_selector, i,
622 drm_dvi_i_select_enum_list[i].type,
623 drm_dvi_i_select_enum_list[i].name);
624 dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
625
626 dvi_i_subconnector =
627 drm_property_create(dev, DRM_MODE_PROP_ENUM |
628 DRM_MODE_PROP_IMMUTABLE,
629 "subconnector",
630 ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
631 for (i = 0; i < ARRAY_SIZE(drm_dvi_i_subconnector_enum_list); i++)
632 drm_property_add_enum(dvi_i_subconnector, i,
633 drm_dvi_i_subconnector_enum_list[i].type,
634 drm_dvi_i_subconnector_enum_list[i].name);
635 dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
636
637 return 0;
638 }
639 EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
640
641 /**
642 * drm_create_tv_properties - create TV specific connector properties
643 * @dev: DRM device
644 * @num_modes: number of different TV formats (modes) supported
645 * @modes: array of pointers to strings containing name of each format
646 *
647 * Called by a driver's TV initialization routine, this function creates
648 * the TV specific connector properties for a given device. Caller is
649 * responsible for allocating a list of format names and passing them to
650 * this routine.
651 */
652 int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
653 char *modes[])
654 {
655 struct drm_property *tv_selector;
656 struct drm_property *tv_subconnector;
657 int i;
658
659 if (dev->mode_config.tv_select_subconnector_property)
660 return 0;
661
662 /*
663 * Basic connector properties
664 */
665 tv_selector = drm_property_create(dev, DRM_MODE_PROP_ENUM,
666 "select subconnector",
667 ARRAY_SIZE(drm_tv_select_enum_list));
668 for (i = 0; i < ARRAY_SIZE(drm_tv_select_enum_list); i++)
669 drm_property_add_enum(tv_selector, i,
670 drm_tv_select_enum_list[i].type,
671 drm_tv_select_enum_list[i].name);
672 dev->mode_config.tv_select_subconnector_property = tv_selector;
673
674 tv_subconnector =
675 drm_property_create(dev, DRM_MODE_PROP_ENUM |
676 DRM_MODE_PROP_IMMUTABLE, "subconnector",
677 ARRAY_SIZE(drm_tv_subconnector_enum_list));
678 for (i = 0; i < ARRAY_SIZE(drm_tv_subconnector_enum_list); i++)
679 drm_property_add_enum(tv_subconnector, i,
680 drm_tv_subconnector_enum_list[i].type,
681 drm_tv_subconnector_enum_list[i].name);
682 dev->mode_config.tv_subconnector_property = tv_subconnector;
683
684 /*
685 * Other, TV specific properties: margins & TV modes.
686 */
687 dev->mode_config.tv_left_margin_property =
688 drm_property_create(dev, DRM_MODE_PROP_RANGE,
689 "left margin", 2);
690 dev->mode_config.tv_left_margin_property->values[0] = 0;
691 dev->mode_config.tv_left_margin_property->values[1] = 100;
692
693 dev->mode_config.tv_right_margin_property =
694 drm_property_create(dev, DRM_MODE_PROP_RANGE,
695 "right margin", 2);
696 dev->mode_config.tv_right_margin_property->values[0] = 0;
697 dev->mode_config.tv_right_margin_property->values[1] = 100;
698
699 dev->mode_config.tv_top_margin_property =
700 drm_property_create(dev, DRM_MODE_PROP_RANGE,
701 "top margin", 2);
702 dev->mode_config.tv_top_margin_property->values[0] = 0;
703 dev->mode_config.tv_top_margin_property->values[1] = 100;
704
705 dev->mode_config.tv_bottom_margin_property =
706 drm_property_create(dev, DRM_MODE_PROP_RANGE,
707 "bottom margin", 2);
708 dev->mode_config.tv_bottom_margin_property->values[0] = 0;
709 dev->mode_config.tv_bottom_margin_property->values[1] = 100;
710
711 dev->mode_config.tv_mode_property =
712 drm_property_create(dev, DRM_MODE_PROP_ENUM,
713 "mode", num_modes);
714 for (i = 0; i < num_modes; i++)
715 drm_property_add_enum(dev->mode_config.tv_mode_property, i,
716 i, modes[i]);
717
718 return 0;
719 }
720 EXPORT_SYMBOL(drm_mode_create_tv_properties);
721
722 /**
723 * drm_mode_create_scaling_mode_property - create scaling mode property
724 * @dev: DRM device
725 *
726 * Called by a driver the first time it's needed, must be attached to desired
727 * connectors.
728 */
729 int drm_mode_create_scaling_mode_property(struct drm_device *dev)
730 {
731 struct drm_property *scaling_mode;
732 int i;
733
734 if (dev->mode_config.scaling_mode_property)
735 return 0;
736
737 scaling_mode =
738 drm_property_create(dev, DRM_MODE_PROP_ENUM, "scaling mode",
739 ARRAY_SIZE(drm_scaling_mode_enum_list));
740 for (i = 0; i < ARRAY_SIZE(drm_scaling_mode_enum_list); i++)
741 drm_property_add_enum(scaling_mode, i,
742 drm_scaling_mode_enum_list[i].type,
743 drm_scaling_mode_enum_list[i].name);
744
745 dev->mode_config.scaling_mode_property = scaling_mode;
746
747 return 0;
748 }
749 EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
750
751 /**
752 * drm_mode_create_dithering_property - create dithering property
753 * @dev: DRM device
754 *
755 * Called by a driver the first time it's needed, must be attached to desired
756 * connectors.
757 */
758 int drm_mode_create_dithering_property(struct drm_device *dev)
759 {
760 struct drm_property *dithering_mode;
761 int i;
762
763 if (dev->mode_config.dithering_mode_property)
764 return 0;
765
766 dithering_mode =
767 drm_property_create(dev, DRM_MODE_PROP_ENUM, "dithering",
768 ARRAY_SIZE(drm_dithering_mode_enum_list));
769 for (i = 0; i < ARRAY_SIZE(drm_dithering_mode_enum_list); i++)
770 drm_property_add_enum(dithering_mode, i,
771 drm_dithering_mode_enum_list[i].type,
772 drm_dithering_mode_enum_list[i].name);
773 dev->mode_config.dithering_mode_property = dithering_mode;
774
775 return 0;
776 }
777 EXPORT_SYMBOL(drm_mode_create_dithering_property);
778
779 /**
780 * drm_mode_config_init - initialize DRM mode_configuration structure
781 * @dev: DRM device
782 *
783 * LOCKING:
784 * None, should happen single threaded at init time.
785 *
786 * Initialize @dev's mode_config structure, used for tracking the graphics
787 * configuration of @dev.
788 */
789 void drm_mode_config_init(struct drm_device *dev)
790 {
791 mutex_init(&dev->mode_config.mutex);
792 mutex_init(&dev->mode_config.idr_mutex);
793 INIT_LIST_HEAD(&dev->mode_config.fb_list);
794 INIT_LIST_HEAD(&dev->mode_config.fb_kernel_list);
795 INIT_LIST_HEAD(&dev->mode_config.crtc_list);
796 INIT_LIST_HEAD(&dev->mode_config.connector_list);
797 INIT_LIST_HEAD(&dev->mode_config.encoder_list);
798 INIT_LIST_HEAD(&dev->mode_config.property_list);
799 INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
800 idr_init(&dev->mode_config.crtc_idr);
801
802 mutex_lock(&dev->mode_config.mutex);
803 drm_mode_create_standard_connector_properties(dev);
804 mutex_unlock(&dev->mode_config.mutex);
805
806 /* Just to be sure */
807 dev->mode_config.num_fb = 0;
808 dev->mode_config.num_connector = 0;
809 dev->mode_config.num_crtc = 0;
810 dev->mode_config.num_encoder = 0;
811 }
812 EXPORT_SYMBOL(drm_mode_config_init);
813
814 int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
815 {
816 uint32_t total_objects = 0;
817
818 total_objects += dev->mode_config.num_crtc;
819 total_objects += dev->mode_config.num_connector;
820 total_objects += dev->mode_config.num_encoder;
821
822 if (total_objects == 0)
823 return -EINVAL;
824
825 group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
826 if (!group->id_list)
827 return -ENOMEM;
828
829 group->num_crtcs = 0;
830 group->num_connectors = 0;
831 group->num_encoders = 0;
832 return 0;
833 }
834
835 int drm_mode_group_init_legacy_group(struct drm_device *dev,
836 struct drm_mode_group *group)
837 {
838 struct drm_crtc *crtc;
839 struct drm_encoder *encoder;
840 struct drm_connector *connector;
841 int ret;
842
843 if ((ret = drm_mode_group_init(dev, group)))
844 return ret;
845
846 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
847 group->id_list[group->num_crtcs++] = crtc->base.id;
848
849 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
850 group->id_list[group->num_crtcs + group->num_encoders++] =
851 encoder->base.id;
852
853 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
854 group->id_list[group->num_crtcs + group->num_encoders +
855 group->num_connectors++] = connector->base.id;
856
857 return 0;
858 }
859
860 /**
861 * drm_mode_config_cleanup - free up DRM mode_config info
862 * @dev: DRM device
863 *
864 * LOCKING:
865 * Caller must hold mode config lock.
866 *
867 * Free up all the connectors and CRTCs associated with this DRM device, then
868 * free up the framebuffers and associated buffer objects.
869 *
870 * FIXME: cleanup any dangling user buffer objects too
871 */
872 void drm_mode_config_cleanup(struct drm_device *dev)
873 {
874 struct drm_connector *connector, *ot;
875 struct drm_crtc *crtc, *ct;
876 struct drm_encoder *encoder, *enct;
877 struct drm_framebuffer *fb, *fbt;
878 struct drm_property *property, *pt;
879
880 list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
881 head) {
882 encoder->funcs->destroy(encoder);
883 }
884
885 list_for_each_entry_safe(connector, ot,
886 &dev->mode_config.connector_list, head) {
887 connector->funcs->destroy(connector);
888 }
889
890 list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
891 head) {
892 drm_property_destroy(dev, property);
893 }
894
895 list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
896 fb->funcs->destroy(fb);
897 }
898
899 list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
900 crtc->funcs->destroy(crtc);
901 }
902
903 }
904 EXPORT_SYMBOL(drm_mode_config_cleanup);
905
906 /**
907 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
908 * @out: drm_mode_modeinfo struct to return to the user
909 * @in: drm_display_mode to use
910 *
911 * LOCKING:
912 * None.
913 *
914 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
915 * the user.
916 */
917 void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
918 struct drm_display_mode *in)
919 {
920 out->clock = in->clock;
921 out->hdisplay = in->hdisplay;
922 out->hsync_start = in->hsync_start;
923 out->hsync_end = in->hsync_end;
924 out->htotal = in->htotal;
925 out->hskew = in->hskew;
926 out->vdisplay = in->vdisplay;
927 out->vsync_start = in->vsync_start;
928 out->vsync_end = in->vsync_end;
929 out->vtotal = in->vtotal;
930 out->vscan = in->vscan;
931 out->vrefresh = in->vrefresh;
932 out->flags = in->flags;
933 out->type = in->type;
934 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
935 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
936 }
937
938 /**
939 * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
940 * @out: drm_display_mode to return to the user
941 * @in: drm_mode_modeinfo to use
942 *
943 * LOCKING:
944 * None.
945 *
946 * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
947 * the caller.
948 */
949 void drm_crtc_convert_umode(struct drm_display_mode *out,
950 struct drm_mode_modeinfo *in)
951 {
952 out->clock = in->clock;
953 out->hdisplay = in->hdisplay;
954 out->hsync_start = in->hsync_start;
955 out->hsync_end = in->hsync_end;
956 out->htotal = in->htotal;
957 out->hskew = in->hskew;
958 out->vdisplay = in->vdisplay;
959 out->vsync_start = in->vsync_start;
960 out->vsync_end = in->vsync_end;
961 out->vtotal = in->vtotal;
962 out->vscan = in->vscan;
963 out->vrefresh = in->vrefresh;
964 out->flags = in->flags;
965 out->type = in->type;
966 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
967 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
968 }
969
970 /**
971 * drm_mode_getresources - get graphics configuration
972 * @inode: inode from the ioctl
973 * @filp: file * from the ioctl
974 * @cmd: cmd from ioctl
975 * @arg: arg from ioctl
976 *
977 * LOCKING:
978 * Takes mode config lock.
979 *
980 * Construct a set of configuration description structures and return
981 * them to the user, including CRTC, connector and framebuffer configuration.
982 *
983 * Called by the user via ioctl.
984 *
985 * RETURNS:
986 * Zero on success, errno on failure.
987 */
988 int drm_mode_getresources(struct drm_device *dev, void *data,
989 struct drm_file *file_priv)
990 {
991 struct drm_mode_card_res *card_res = data;
992 struct list_head *lh;
993 struct drm_framebuffer *fb;
994 struct drm_connector *connector;
995 struct drm_crtc *crtc;
996 struct drm_encoder *encoder;
997 int ret = 0;
998 int connector_count = 0;
999 int crtc_count = 0;
1000 int fb_count = 0;
1001 int encoder_count = 0;
1002 int copied = 0, i;
1003 uint32_t __user *fb_id;
1004 uint32_t __user *crtc_id;
1005 uint32_t __user *connector_id;
1006 uint32_t __user *encoder_id;
1007 struct drm_mode_group *mode_group;
1008
1009 mutex_lock(&dev->mode_config.mutex);
1010
1011 /*
1012 * For the non-control nodes we need to limit the list of resources
1013 * by IDs in the group list for this node
1014 */
1015 list_for_each(lh, &file_priv->fbs)
1016 fb_count++;
1017
1018 mode_group = &file_priv->master->minor->mode_group;
1019 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1020
1021 list_for_each(lh, &dev->mode_config.crtc_list)
1022 crtc_count++;
1023
1024 list_for_each(lh, &dev->mode_config.connector_list)
1025 connector_count++;
1026
1027 list_for_each(lh, &dev->mode_config.encoder_list)
1028 encoder_count++;
1029 } else {
1030
1031 crtc_count = mode_group->num_crtcs;
1032 connector_count = mode_group->num_connectors;
1033 encoder_count = mode_group->num_encoders;
1034 }
1035
1036 card_res->max_height = dev->mode_config.max_height;
1037 card_res->min_height = dev->mode_config.min_height;
1038 card_res->max_width = dev->mode_config.max_width;
1039 card_res->min_width = dev->mode_config.min_width;
1040
1041 /* handle this in 4 parts */
1042 /* FBs */
1043 if (card_res->count_fbs >= fb_count) {
1044 copied = 0;
1045 fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
1046 list_for_each_entry(fb, &file_priv->fbs, head) {
1047 if (put_user(fb->base.id, fb_id + copied)) {
1048 ret = -EFAULT;
1049 goto out;
1050 }
1051 copied++;
1052 }
1053 }
1054 card_res->count_fbs = fb_count;
1055
1056 /* CRTCs */
1057 if (card_res->count_crtcs >= crtc_count) {
1058 copied = 0;
1059 crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
1060 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1061 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
1062 head) {
1063 DRM_DEBUG("CRTC ID is %d\n", crtc->base.id);
1064 if (put_user(crtc->base.id, crtc_id + copied)) {
1065 ret = -EFAULT;
1066 goto out;
1067 }
1068 copied++;
1069 }
1070 } else {
1071 for (i = 0; i < mode_group->num_crtcs; i++) {
1072 if (put_user(mode_group->id_list[i],
1073 crtc_id + copied)) {
1074 ret = -EFAULT;
1075 goto out;
1076 }
1077 copied++;
1078 }
1079 }
1080 }
1081 card_res->count_crtcs = crtc_count;
1082
1083 /* Encoders */
1084 if (card_res->count_encoders >= encoder_count) {
1085 copied = 0;
1086 encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
1087 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1088 list_for_each_entry(encoder,
1089 &dev->mode_config.encoder_list,
1090 head) {
1091 DRM_DEBUG("ENCODER ID is %d\n",
1092 encoder->base.id);
1093 if (put_user(encoder->base.id, encoder_id +
1094 copied)) {
1095 ret = -EFAULT;
1096 goto out;
1097 }
1098 copied++;
1099 }
1100 } else {
1101 for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
1102 if (put_user(mode_group->id_list[i],
1103 encoder_id + copied)) {
1104 ret = -EFAULT;
1105 goto out;
1106 }
1107 copied++;
1108 }
1109
1110 }
1111 }
1112 card_res->count_encoders = encoder_count;
1113
1114 /* Connectors */
1115 if (card_res->count_connectors >= connector_count) {
1116 copied = 0;
1117 connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
1118 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1119 list_for_each_entry(connector,
1120 &dev->mode_config.connector_list,
1121 head) {
1122 DRM_DEBUG("CONNECTOR ID is %d\n",
1123 connector->base.id);
1124 if (put_user(connector->base.id,
1125 connector_id + copied)) {
1126 ret = -EFAULT;
1127 goto out;
1128 }
1129 copied++;
1130 }
1131 } else {
1132 int start = mode_group->num_crtcs +
1133 mode_group->num_encoders;
1134 for (i = start; i < start + mode_group->num_connectors; i++) {
1135 if (put_user(mode_group->id_list[i],
1136 connector_id + copied)) {
1137 ret = -EFAULT;
1138 goto out;
1139 }
1140 copied++;
1141 }
1142 }
1143 }
1144 card_res->count_connectors = connector_count;
1145
1146 DRM_DEBUG("Counted %d %d %d\n", card_res->count_crtcs,
1147 card_res->count_connectors, card_res->count_encoders);
1148
1149 out:
1150 mutex_unlock(&dev->mode_config.mutex);
1151 return ret;
1152 }
1153
1154 /**
1155 * drm_mode_getcrtc - get CRTC configuration
1156 * @inode: inode from the ioctl
1157 * @filp: file * from the ioctl
1158 * @cmd: cmd from ioctl
1159 * @arg: arg from ioctl
1160 *
1161 * LOCKING:
1162 * Caller? (FIXME)
1163 *
1164 * Construct a CRTC configuration structure to return to the user.
1165 *
1166 * Called by the user via ioctl.
1167 *
1168 * RETURNS:
1169 * Zero on success, errno on failure.
1170 */
1171 int drm_mode_getcrtc(struct drm_device *dev,
1172 void *data, struct drm_file *file_priv)
1173 {
1174 struct drm_mode_crtc *crtc_resp = data;
1175 struct drm_crtc *crtc;
1176 struct drm_mode_object *obj;
1177 int ret = 0;
1178
1179 mutex_lock(&dev->mode_config.mutex);
1180
1181 obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
1182 DRM_MODE_OBJECT_CRTC);
1183 if (!obj) {
1184 ret = -EINVAL;
1185 goto out;
1186 }
1187 crtc = obj_to_crtc(obj);
1188
1189 crtc_resp->x = crtc->x;
1190 crtc_resp->y = crtc->y;
1191 crtc_resp->gamma_size = crtc->gamma_size;
1192 if (crtc->fb)
1193 crtc_resp->fb_id = crtc->fb->base.id;
1194 else
1195 crtc_resp->fb_id = 0;
1196
1197 if (crtc->enabled) {
1198
1199 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
1200 crtc_resp->mode_valid = 1;
1201
1202 } else {
1203 crtc_resp->mode_valid = 0;
1204 }
1205
1206 out:
1207 mutex_unlock(&dev->mode_config.mutex);
1208 return ret;
1209 }
1210
1211 /**
1212 * drm_mode_getconnector - get connector configuration
1213 * @inode: inode from the ioctl
1214 * @filp: file * from the ioctl
1215 * @cmd: cmd from ioctl
1216 * @arg: arg from ioctl
1217 *
1218 * LOCKING:
1219 * Caller? (FIXME)
1220 *
1221 * Construct a connector configuration structure to return to the user.
1222 *
1223 * Called by the user via ioctl.
1224 *
1225 * RETURNS:
1226 * Zero on success, errno on failure.
1227 */
1228 int drm_mode_getconnector(struct drm_device *dev, void *data,
1229 struct drm_file *file_priv)
1230 {
1231 struct drm_mode_get_connector *out_resp = data;
1232 struct drm_mode_object *obj;
1233 struct drm_connector *connector;
1234 struct drm_display_mode *mode;
1235 int mode_count = 0;
1236 int props_count = 0;
1237 int encoders_count = 0;
1238 int ret = 0;
1239 int copied = 0;
1240 int i;
1241 struct drm_mode_modeinfo u_mode;
1242 struct drm_mode_modeinfo __user *mode_ptr;
1243 uint32_t __user *prop_ptr;
1244 uint64_t __user *prop_values;
1245 uint32_t __user *encoder_ptr;
1246
1247 memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
1248
1249 DRM_DEBUG("connector id %d:\n", out_resp->connector_id);
1250
1251 mutex_lock(&dev->mode_config.mutex);
1252
1253 obj = drm_mode_object_find(dev, out_resp->connector_id,
1254 DRM_MODE_OBJECT_CONNECTOR);
1255 if (!obj) {
1256 ret = -EINVAL;
1257 goto out;
1258 }
1259 connector = obj_to_connector(obj);
1260
1261 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1262 if (connector->property_ids[i] != 0) {
1263 props_count++;
1264 }
1265 }
1266
1267 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1268 if (connector->encoder_ids[i] != 0) {
1269 encoders_count++;
1270 }
1271 }
1272
1273 if (out_resp->count_modes == 0) {
1274 connector->funcs->fill_modes(connector,
1275 dev->mode_config.max_width,
1276 dev->mode_config.max_height);
1277 }
1278
1279 /* delayed so we get modes regardless of pre-fill_modes state */
1280 list_for_each_entry(mode, &connector->modes, head)
1281 mode_count++;
1282
1283 out_resp->connector_id = connector->base.id;
1284 out_resp->connector_type = connector->connector_type;
1285 out_resp->connector_type_id = connector->connector_type_id;
1286 out_resp->mm_width = connector->display_info.width_mm;
1287 out_resp->mm_height = connector->display_info.height_mm;
1288 out_resp->subpixel = connector->display_info.subpixel_order;
1289 out_resp->connection = connector->status;
1290 if (connector->encoder)
1291 out_resp->encoder_id = connector->encoder->base.id;
1292 else
1293 out_resp->encoder_id = 0;
1294
1295 /*
1296 * This ioctl is called twice, once to determine how much space is
1297 * needed, and the 2nd time to fill it.
1298 */
1299 if ((out_resp->count_modes >= mode_count) && mode_count) {
1300 copied = 0;
1301 mode_ptr = (struct drm_mode_modeinfo *)(unsigned long)out_resp->modes_ptr;
1302 list_for_each_entry(mode, &connector->modes, head) {
1303 drm_crtc_convert_to_umode(&u_mode, mode);
1304 if (copy_to_user(mode_ptr + copied,
1305 &u_mode, sizeof(u_mode))) {
1306 ret = -EFAULT;
1307 goto out;
1308 }
1309 copied++;
1310 }
1311 }
1312 out_resp->count_modes = mode_count;
1313
1314 if ((out_resp->count_props >= props_count) && props_count) {
1315 copied = 0;
1316 prop_ptr = (uint32_t *)(unsigned long)(out_resp->props_ptr);
1317 prop_values = (uint64_t *)(unsigned long)(out_resp->prop_values_ptr);
1318 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1319 if (connector->property_ids[i] != 0) {
1320 if (put_user(connector->property_ids[i],
1321 prop_ptr + copied)) {
1322 ret = -EFAULT;
1323 goto out;
1324 }
1325
1326 if (put_user(connector->property_values[i],
1327 prop_values + copied)) {
1328 ret = -EFAULT;
1329 goto out;
1330 }
1331 copied++;
1332 }
1333 }
1334 }
1335 out_resp->count_props = props_count;
1336
1337 if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
1338 copied = 0;
1339 encoder_ptr = (uint32_t *)(unsigned long)(out_resp->encoders_ptr);
1340 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1341 if (connector->encoder_ids[i] != 0) {
1342 if (put_user(connector->encoder_ids[i],
1343 encoder_ptr + copied)) {
1344 ret = -EFAULT;
1345 goto out;
1346 }
1347 copied++;
1348 }
1349 }
1350 }
1351 out_resp->count_encoders = encoders_count;
1352
1353 out:
1354 mutex_unlock(&dev->mode_config.mutex);
1355 return ret;
1356 }
1357
1358 int drm_mode_getencoder(struct drm_device *dev, void *data,
1359 struct drm_file *file_priv)
1360 {
1361 struct drm_mode_get_encoder *enc_resp = data;
1362 struct drm_mode_object *obj;
1363 struct drm_encoder *encoder;
1364 int ret = 0;
1365
1366 mutex_lock(&dev->mode_config.mutex);
1367 obj = drm_mode_object_find(dev, enc_resp->encoder_id,
1368 DRM_MODE_OBJECT_ENCODER);
1369 if (!obj) {
1370 ret = -EINVAL;
1371 goto out;
1372 }
1373 encoder = obj_to_encoder(obj);
1374
1375 if (encoder->crtc)
1376 enc_resp->crtc_id = encoder->crtc->base.id;
1377 else
1378 enc_resp->crtc_id = 0;
1379 enc_resp->encoder_type = encoder->encoder_type;
1380 enc_resp->encoder_id = encoder->base.id;
1381 enc_resp->possible_crtcs = encoder->possible_crtcs;
1382 enc_resp->possible_clones = encoder->possible_clones;
1383
1384 out:
1385 mutex_unlock(&dev->mode_config.mutex);
1386 return ret;
1387 }
1388
1389 /**
1390 * drm_mode_setcrtc - set CRTC configuration
1391 * @inode: inode from the ioctl
1392 * @filp: file * from the ioctl
1393 * @cmd: cmd from ioctl
1394 * @arg: arg from ioctl
1395 *
1396 * LOCKING:
1397 * Caller? (FIXME)
1398 *
1399 * Build a new CRTC configuration based on user request.
1400 *
1401 * Called by the user via ioctl.
1402 *
1403 * RETURNS:
1404 * Zero on success, errno on failure.
1405 */
1406 int drm_mode_setcrtc(struct drm_device *dev, void *data,
1407 struct drm_file *file_priv)
1408 {
1409 struct drm_mode_config *config = &dev->mode_config;
1410 struct drm_mode_crtc *crtc_req = data;
1411 struct drm_mode_object *obj;
1412 struct drm_crtc *crtc, *crtcfb;
1413 struct drm_connector **connector_set = NULL, *connector;
1414 struct drm_framebuffer *fb = NULL;
1415 struct drm_display_mode *mode = NULL;
1416 struct drm_mode_set set;
1417 uint32_t __user *set_connectors_ptr;
1418 int ret = 0;
1419 int i;
1420
1421 mutex_lock(&dev->mode_config.mutex);
1422 obj = drm_mode_object_find(dev, crtc_req->crtc_id,
1423 DRM_MODE_OBJECT_CRTC);
1424 if (!obj) {
1425 DRM_DEBUG("Unknown CRTC ID %d\n", crtc_req->crtc_id);
1426 ret = -EINVAL;
1427 goto out;
1428 }
1429 crtc = obj_to_crtc(obj);
1430
1431 if (crtc_req->mode_valid) {
1432 /* If we have a mode we need a framebuffer. */
1433 /* If we pass -1, set the mode with the currently bound fb */
1434 if (crtc_req->fb_id == -1) {
1435 list_for_each_entry(crtcfb,
1436 &dev->mode_config.crtc_list, head) {
1437 if (crtcfb == crtc) {
1438 DRM_DEBUG("Using current fb for setmode\n");
1439 fb = crtc->fb;
1440 }
1441 }
1442 } else {
1443 obj = drm_mode_object_find(dev, crtc_req->fb_id,
1444 DRM_MODE_OBJECT_FB);
1445 if (!obj) {
1446 DRM_DEBUG("Unknown FB ID%d\n", crtc_req->fb_id);
1447 ret = -EINVAL;
1448 goto out;
1449 }
1450 fb = obj_to_fb(obj);
1451 }
1452
1453 mode = drm_mode_create(dev);
1454 drm_crtc_convert_umode(mode, &crtc_req->mode);
1455 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
1456 }
1457
1458 if (crtc_req->count_connectors == 0 && mode) {
1459 DRM_DEBUG("Count connectors is 0 but mode set\n");
1460 ret = -EINVAL;
1461 goto out;
1462 }
1463
1464 if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
1465 DRM_DEBUG("Count connectors is %d but no mode or fb set\n",
1466 crtc_req->count_connectors);
1467 ret = -EINVAL;
1468 goto out;
1469 }
1470
1471 if (crtc_req->count_connectors > 0) {
1472 u32 out_id;
1473
1474 /* Avoid unbounded kernel memory allocation */
1475 if (crtc_req->count_connectors > config->num_connector) {
1476 ret = -EINVAL;
1477 goto out;
1478 }
1479
1480 connector_set = kmalloc(crtc_req->count_connectors *
1481 sizeof(struct drm_connector *),
1482 GFP_KERNEL);
1483 if (!connector_set) {
1484 ret = -ENOMEM;
1485 goto out;
1486 }
1487
1488 for (i = 0; i < crtc_req->count_connectors; i++) {
1489 set_connectors_ptr = (uint32_t *)(unsigned long)crtc_req->set_connectors_ptr;
1490 if (get_user(out_id, &set_connectors_ptr[i])) {
1491 ret = -EFAULT;
1492 goto out;
1493 }
1494
1495 obj = drm_mode_object_find(dev, out_id,
1496 DRM_MODE_OBJECT_CONNECTOR);
1497 if (!obj) {
1498 DRM_DEBUG("Connector id %d unknown\n", out_id);
1499 ret = -EINVAL;
1500 goto out;
1501 }
1502 connector = obj_to_connector(obj);
1503
1504 connector_set[i] = connector;
1505 }
1506 }
1507
1508 set.crtc = crtc;
1509 set.x = crtc_req->x;
1510 set.y = crtc_req->y;
1511 set.mode = mode;
1512 set.connectors = connector_set;
1513 set.num_connectors = crtc_req->count_connectors;
1514 set.fb =fb;
1515 ret = crtc->funcs->set_config(&set);
1516
1517 out:
1518 kfree(connector_set);
1519 mutex_unlock(&dev->mode_config.mutex);
1520 return ret;
1521 }
1522
1523 int drm_mode_cursor_ioctl(struct drm_device *dev,
1524 void *data, struct drm_file *file_priv)
1525 {
1526 struct drm_mode_cursor *req = data;
1527 struct drm_mode_object *obj;
1528 struct drm_crtc *crtc;
1529 int ret = 0;
1530
1531 DRM_DEBUG("\n");
1532
1533 if (!req->flags) {
1534 DRM_ERROR("no operation set\n");
1535 return -EINVAL;
1536 }
1537
1538 mutex_lock(&dev->mode_config.mutex);
1539 obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
1540 if (!obj) {
1541 DRM_DEBUG("Unknown CRTC ID %d\n", req->crtc_id);
1542 ret = -EINVAL;
1543 goto out;
1544 }
1545 crtc = obj_to_crtc(obj);
1546
1547 if (req->flags & DRM_MODE_CURSOR_BO) {
1548 if (!crtc->funcs->cursor_set) {
1549 DRM_ERROR("crtc does not support cursor\n");
1550 ret = -ENXIO;
1551 goto out;
1552 }
1553 /* Turns off the cursor if handle is 0 */
1554 ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
1555 req->width, req->height);
1556 }
1557
1558 if (req->flags & DRM_MODE_CURSOR_MOVE) {
1559 if (crtc->funcs->cursor_move) {
1560 ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
1561 } else {
1562 DRM_ERROR("crtc does not support cursor\n");
1563 ret = -EFAULT;
1564 goto out;
1565 }
1566 }
1567 out:
1568 mutex_unlock(&dev->mode_config.mutex);
1569 return ret;
1570 }
1571
1572 /**
1573 * drm_mode_addfb - add an FB to the graphics configuration
1574 * @inode: inode from the ioctl
1575 * @filp: file * from the ioctl
1576 * @cmd: cmd from ioctl
1577 * @arg: arg from ioctl
1578 *
1579 * LOCKING:
1580 * Takes mode config lock.
1581 *
1582 * Add a new FB to the specified CRTC, given a user request.
1583 *
1584 * Called by the user via ioctl.
1585 *
1586 * RETURNS:
1587 * Zero on success, errno on failure.
1588 */
1589 int drm_mode_addfb(struct drm_device *dev,
1590 void *data, struct drm_file *file_priv)
1591 {
1592 struct drm_mode_fb_cmd *r = data;
1593 struct drm_mode_config *config = &dev->mode_config;
1594 struct drm_framebuffer *fb;
1595 int ret = 0;
1596
1597 if ((config->min_width > r->width) || (r->width > config->max_width)) {
1598 DRM_ERROR("mode new framebuffer width not within limits\n");
1599 return -EINVAL;
1600 }
1601 if ((config->min_height > r->height) || (r->height > config->max_height)) {
1602 DRM_ERROR("mode new framebuffer height not within limits\n");
1603 return -EINVAL;
1604 }
1605
1606 mutex_lock(&dev->mode_config.mutex);
1607
1608 /* TODO check buffer is sufficently large */
1609 /* TODO setup destructor callback */
1610
1611 fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
1612 if (!fb) {
1613 DRM_ERROR("could not create framebuffer\n");
1614 ret = -EINVAL;
1615 goto out;
1616 }
1617
1618 r->fb_id = fb->base.id;
1619 list_add(&fb->filp_head, &file_priv->fbs);
1620
1621 out:
1622 mutex_unlock(&dev->mode_config.mutex);
1623 return ret;
1624 }
1625
1626 /**
1627 * drm_mode_rmfb - remove an FB from the configuration
1628 * @inode: inode from the ioctl
1629 * @filp: file * from the ioctl
1630 * @cmd: cmd from ioctl
1631 * @arg: arg from ioctl
1632 *
1633 * LOCKING:
1634 * Takes mode config lock.
1635 *
1636 * Remove the FB specified by the user.
1637 *
1638 * Called by the user via ioctl.
1639 *
1640 * RETURNS:
1641 * Zero on success, errno on failure.
1642 */
1643 int drm_mode_rmfb(struct drm_device *dev,
1644 void *data, struct drm_file *file_priv)
1645 {
1646 struct drm_mode_object *obj;
1647 struct drm_framebuffer *fb = NULL;
1648 struct drm_framebuffer *fbl = NULL;
1649 uint32_t *id = data;
1650 int ret = 0;
1651 int found = 0;
1652
1653 mutex_lock(&dev->mode_config.mutex);
1654 obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB);
1655 /* TODO check that we realy get a framebuffer back. */
1656 if (!obj) {
1657 DRM_ERROR("mode invalid framebuffer id\n");
1658 ret = -EINVAL;
1659 goto out;
1660 }
1661 fb = obj_to_fb(obj);
1662
1663 list_for_each_entry(fbl, &file_priv->fbs, filp_head)
1664 if (fb == fbl)
1665 found = 1;
1666
1667 if (!found) {
1668 DRM_ERROR("tried to remove a fb that we didn't own\n");
1669 ret = -EINVAL;
1670 goto out;
1671 }
1672
1673 /* TODO release all crtc connected to the framebuffer */
1674 /* TODO unhock the destructor from the buffer object */
1675
1676 list_del(&fb->filp_head);
1677 fb->funcs->destroy(fb);
1678
1679 out:
1680 mutex_unlock(&dev->mode_config.mutex);
1681 return ret;
1682 }
1683
1684 /**
1685 * drm_mode_getfb - get FB info
1686 * @inode: inode from the ioctl
1687 * @filp: file * from the ioctl
1688 * @cmd: cmd from ioctl
1689 * @arg: arg from ioctl
1690 *
1691 * LOCKING:
1692 * Caller? (FIXME)
1693 *
1694 * Lookup the FB given its ID and return info about it.
1695 *
1696 * Called by the user via ioctl.
1697 *
1698 * RETURNS:
1699 * Zero on success, errno on failure.
1700 */
1701 int drm_mode_getfb(struct drm_device *dev,
1702 void *data, struct drm_file *file_priv)
1703 {
1704 struct drm_mode_fb_cmd *r = data;
1705 struct drm_mode_object *obj;
1706 struct drm_framebuffer *fb;
1707 int ret = 0;
1708
1709 mutex_lock(&dev->mode_config.mutex);
1710 obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
1711 if (!obj) {
1712 DRM_ERROR("invalid framebuffer id\n");
1713 ret = -EINVAL;
1714 goto out;
1715 }
1716 fb = obj_to_fb(obj);
1717
1718 r->height = fb->height;
1719 r->width = fb->width;
1720 r->depth = fb->depth;
1721 r->bpp = fb->bits_per_pixel;
1722 r->pitch = fb->pitch;
1723 fb->funcs->create_handle(fb, file_priv, &r->handle);
1724
1725 out:
1726 mutex_unlock(&dev->mode_config.mutex);
1727 return ret;
1728 }
1729
1730 /**
1731 * drm_fb_release - remove and free the FBs on this file
1732 * @filp: file * from the ioctl
1733 *
1734 * LOCKING:
1735 * Takes mode config lock.
1736 *
1737 * Destroy all the FBs associated with @filp.
1738 *
1739 * Called by the user via ioctl.
1740 *
1741 * RETURNS:
1742 * Zero on success, errno on failure.
1743 */
1744 void drm_fb_release(struct drm_file *priv)
1745 {
1746 struct drm_device *dev = priv->minor->dev;
1747 struct drm_framebuffer *fb, *tfb;
1748
1749 mutex_lock(&dev->mode_config.mutex);
1750 list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
1751 list_del(&fb->filp_head);
1752 fb->funcs->destroy(fb);
1753 }
1754 mutex_unlock(&dev->mode_config.mutex);
1755 }
1756
1757 /**
1758 * drm_mode_attachmode - add a mode to the user mode list
1759 * @dev: DRM device
1760 * @connector: connector to add the mode to
1761 * @mode: mode to add
1762 *
1763 * Add @mode to @connector's user mode list.
1764 */
1765 static int drm_mode_attachmode(struct drm_device *dev,
1766 struct drm_connector *connector,
1767 struct drm_display_mode *mode)
1768 {
1769 int ret = 0;
1770
1771 list_add_tail(&mode->head, &connector->user_modes);
1772 return ret;
1773 }
1774
1775 int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc,
1776 struct drm_display_mode *mode)
1777 {
1778 struct drm_connector *connector;
1779 int ret = 0;
1780 struct drm_display_mode *dup_mode;
1781 int need_dup = 0;
1782 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1783 if (!connector->encoder)
1784 break;
1785 if (connector->encoder->crtc == crtc) {
1786 if (need_dup)
1787 dup_mode = drm_mode_duplicate(dev, mode);
1788 else
1789 dup_mode = mode;
1790 ret = drm_mode_attachmode(dev, connector, dup_mode);
1791 if (ret)
1792 return ret;
1793 need_dup = 1;
1794 }
1795 }
1796 return 0;
1797 }
1798 EXPORT_SYMBOL(drm_mode_attachmode_crtc);
1799
1800 static int drm_mode_detachmode(struct drm_device *dev,
1801 struct drm_connector *connector,
1802 struct drm_display_mode *mode)
1803 {
1804 int found = 0;
1805 int ret = 0;
1806 struct drm_display_mode *match_mode, *t;
1807
1808 list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) {
1809 if (drm_mode_equal(match_mode, mode)) {
1810 list_del(&match_mode->head);
1811 drm_mode_destroy(dev, match_mode);
1812 found = 1;
1813 break;
1814 }
1815 }
1816
1817 if (!found)
1818 ret = -EINVAL;
1819
1820 return ret;
1821 }
1822
1823 int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode)
1824 {
1825 struct drm_connector *connector;
1826
1827 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1828 drm_mode_detachmode(dev, connector, mode);
1829 }
1830 return 0;
1831 }
1832 EXPORT_SYMBOL(drm_mode_detachmode_crtc);
1833
1834 /**
1835 * drm_fb_attachmode - Attach a user mode to an connector
1836 * @inode: inode from the ioctl
1837 * @filp: file * from the ioctl
1838 * @cmd: cmd from ioctl
1839 * @arg: arg from ioctl
1840 *
1841 * This attaches a user specified mode to an connector.
1842 * Called by the user via ioctl.
1843 *
1844 * RETURNS:
1845 * Zero on success, errno on failure.
1846 */
1847 int drm_mode_attachmode_ioctl(struct drm_device *dev,
1848 void *data, struct drm_file *file_priv)
1849 {
1850 struct drm_mode_mode_cmd *mode_cmd = data;
1851 struct drm_connector *connector;
1852 struct drm_display_mode *mode;
1853 struct drm_mode_object *obj;
1854 struct drm_mode_modeinfo *umode = &mode_cmd->mode;
1855 int ret = 0;
1856
1857 mutex_lock(&dev->mode_config.mutex);
1858
1859 obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
1860 if (!obj) {
1861 ret = -EINVAL;
1862 goto out;
1863 }
1864 connector = obj_to_connector(obj);
1865
1866 mode = drm_mode_create(dev);
1867 if (!mode) {
1868 ret = -ENOMEM;
1869 goto out;
1870 }
1871
1872 drm_crtc_convert_umode(mode, umode);
1873
1874 ret = drm_mode_attachmode(dev, connector, mode);
1875 out:
1876 mutex_unlock(&dev->mode_config.mutex);
1877 return ret;
1878 }
1879
1880
1881 /**
1882 * drm_fb_detachmode - Detach a user specified mode from an connector
1883 * @inode: inode from the ioctl
1884 * @filp: file * from the ioctl
1885 * @cmd: cmd from ioctl
1886 * @arg: arg from ioctl
1887 *
1888 * Called by the user via ioctl.
1889 *
1890 * RETURNS:
1891 * Zero on success, errno on failure.
1892 */
1893 int drm_mode_detachmode_ioctl(struct drm_device *dev,
1894 void *data, struct drm_file *file_priv)
1895 {
1896 struct drm_mode_object *obj;
1897 struct drm_mode_mode_cmd *mode_cmd = data;
1898 struct drm_connector *connector;
1899 struct drm_display_mode mode;
1900 struct drm_mode_modeinfo *umode = &mode_cmd->mode;
1901 int ret = 0;
1902
1903 mutex_lock(&dev->mode_config.mutex);
1904
1905 obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
1906 if (!obj) {
1907 ret = -EINVAL;
1908 goto out;
1909 }
1910 connector = obj_to_connector(obj);
1911
1912 drm_crtc_convert_umode(&mode, umode);
1913 ret = drm_mode_detachmode(dev, connector, &mode);
1914 out:
1915 mutex_unlock(&dev->mode_config.mutex);
1916 return ret;
1917 }
1918
1919 struct drm_property *drm_property_create(struct drm_device *dev, int flags,
1920 const char *name, int num_values)
1921 {
1922 struct drm_property *property = NULL;
1923
1924 property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
1925 if (!property)
1926 return NULL;
1927
1928 if (num_values) {
1929 property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
1930 if (!property->values)
1931 goto fail;
1932 }
1933
1934 drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
1935 property->flags = flags;
1936 property->num_values = num_values;
1937 INIT_LIST_HEAD(&property->enum_blob_list);
1938
1939 if (name)
1940 strncpy(property->name, name, DRM_PROP_NAME_LEN);
1941
1942 list_add_tail(&property->head, &dev->mode_config.property_list);
1943 return property;
1944 fail:
1945 kfree(property);
1946 return NULL;
1947 }
1948 EXPORT_SYMBOL(drm_property_create);
1949
1950 int drm_property_add_enum(struct drm_property *property, int index,
1951 uint64_t value, const char *name)
1952 {
1953 struct drm_property_enum *prop_enum;
1954
1955 if (!(property->flags & DRM_MODE_PROP_ENUM))
1956 return -EINVAL;
1957
1958 if (!list_empty(&property->enum_blob_list)) {
1959 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
1960 if (prop_enum->value == value) {
1961 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
1962 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
1963 return 0;
1964 }
1965 }
1966 }
1967
1968 prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
1969 if (!prop_enum)
1970 return -ENOMEM;
1971
1972 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
1973 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
1974 prop_enum->value = value;
1975
1976 property->values[index] = value;
1977 list_add_tail(&prop_enum->head, &property->enum_blob_list);
1978 return 0;
1979 }
1980 EXPORT_SYMBOL(drm_property_add_enum);
1981
1982 void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
1983 {
1984 struct drm_property_enum *prop_enum, *pt;
1985
1986 list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
1987 list_del(&prop_enum->head);
1988 kfree(prop_enum);
1989 }
1990
1991 if (property->num_values)
1992 kfree(property->values);
1993 drm_mode_object_put(dev, &property->base);
1994 list_del(&property->head);
1995 kfree(property);
1996 }
1997 EXPORT_SYMBOL(drm_property_destroy);
1998
1999 int drm_connector_attach_property(struct drm_connector *connector,
2000 struct drm_property *property, uint64_t init_val)
2001 {
2002 int i;
2003
2004 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2005 if (connector->property_ids[i] == 0) {
2006 connector->property_ids[i] = property->base.id;
2007 connector->property_values[i] = init_val;
2008 break;
2009 }
2010 }
2011
2012 if (i == DRM_CONNECTOR_MAX_PROPERTY)
2013 return -EINVAL;
2014 return 0;
2015 }
2016 EXPORT_SYMBOL(drm_connector_attach_property);
2017
2018 int drm_connector_property_set_value(struct drm_connector *connector,
2019 struct drm_property *property, uint64_t value)
2020 {
2021 int i;
2022
2023 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2024 if (connector->property_ids[i] == property->base.id) {
2025 connector->property_values[i] = value;
2026 break;
2027 }
2028 }
2029
2030 if (i == DRM_CONNECTOR_MAX_PROPERTY)
2031 return -EINVAL;
2032 return 0;
2033 }
2034 EXPORT_SYMBOL(drm_connector_property_set_value);
2035
2036 int drm_connector_property_get_value(struct drm_connector *connector,
2037 struct drm_property *property, uint64_t *val)
2038 {
2039 int i;
2040
2041 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2042 if (connector->property_ids[i] == property->base.id) {
2043 *val = connector->property_values[i];
2044 break;
2045 }
2046 }
2047
2048 if (i == DRM_CONNECTOR_MAX_PROPERTY)
2049 return -EINVAL;
2050 return 0;
2051 }
2052 EXPORT_SYMBOL(drm_connector_property_get_value);
2053
2054 int drm_mode_getproperty_ioctl(struct drm_device *dev,
2055 void *data, struct drm_file *file_priv)
2056 {
2057 struct drm_mode_object *obj;
2058 struct drm_mode_get_property *out_resp = data;
2059 struct drm_property *property;
2060 int enum_count = 0;
2061 int blob_count = 0;
2062 int value_count = 0;
2063 int ret = 0, i;
2064 int copied;
2065 struct drm_property_enum *prop_enum;
2066 struct drm_mode_property_enum __user *enum_ptr;
2067 struct drm_property_blob *prop_blob;
2068 uint32_t *blob_id_ptr;
2069 uint64_t __user *values_ptr;
2070 uint32_t __user *blob_length_ptr;
2071
2072 mutex_lock(&dev->mode_config.mutex);
2073 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2074 if (!obj) {
2075 ret = -EINVAL;
2076 goto done;
2077 }
2078 property = obj_to_property(obj);
2079
2080 if (property->flags & DRM_MODE_PROP_ENUM) {
2081 list_for_each_entry(prop_enum, &property->enum_blob_list, head)
2082 enum_count++;
2083 } else if (property->flags & DRM_MODE_PROP_BLOB) {
2084 list_for_each_entry(prop_blob, &property->enum_blob_list, head)
2085 blob_count++;
2086 }
2087
2088 value_count = property->num_values;
2089
2090 strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
2091 out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
2092 out_resp->flags = property->flags;
2093
2094 if ((out_resp->count_values >= value_count) && value_count) {
2095 values_ptr = (uint64_t *)(unsigned long)out_resp->values_ptr;
2096 for (i = 0; i < value_count; i++) {
2097 if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
2098 ret = -EFAULT;
2099 goto done;
2100 }
2101 }
2102 }
2103 out_resp->count_values = value_count;
2104
2105 if (property->flags & DRM_MODE_PROP_ENUM) {
2106 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
2107 copied = 0;
2108 enum_ptr = (struct drm_mode_property_enum *)(unsigned long)out_resp->enum_blob_ptr;
2109 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2110
2111 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
2112 ret = -EFAULT;
2113 goto done;
2114 }
2115
2116 if (copy_to_user(&enum_ptr[copied].name,
2117 &prop_enum->name, DRM_PROP_NAME_LEN)) {
2118 ret = -EFAULT;
2119 goto done;
2120 }
2121 copied++;
2122 }
2123 }
2124 out_resp->count_enum_blobs = enum_count;
2125 }
2126
2127 if (property->flags & DRM_MODE_PROP_BLOB) {
2128 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
2129 copied = 0;
2130 blob_id_ptr = (uint32_t *)(unsigned long)out_resp->enum_blob_ptr;
2131 blob_length_ptr = (uint32_t *)(unsigned long)out_resp->values_ptr;
2132
2133 list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
2134 if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
2135 ret = -EFAULT;
2136 goto done;
2137 }
2138
2139 if (put_user(prop_blob->length, blob_length_ptr + copied)) {
2140 ret = -EFAULT;
2141 goto done;
2142 }
2143
2144 copied++;
2145 }
2146 }
2147 out_resp->count_enum_blobs = blob_count;
2148 }
2149 done:
2150 mutex_unlock(&dev->mode_config.mutex);
2151 return ret;
2152 }
2153
2154 static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
2155 void *data)
2156 {
2157 struct drm_property_blob *blob;
2158
2159 if (!length || !data)
2160 return NULL;
2161
2162 blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
2163 if (!blob)
2164 return NULL;
2165
2166 blob->data = (void *)((char *)blob + sizeof(struct drm_property_blob));
2167 blob->length = length;
2168
2169 memcpy(blob->data, data, length);
2170
2171 drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
2172
2173 list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
2174 return blob;
2175 }
2176
2177 static void drm_property_destroy_blob(struct drm_device *dev,
2178 struct drm_property_blob *blob)
2179 {
2180 drm_mode_object_put(dev, &blob->base);
2181 list_del(&blob->head);
2182 kfree(blob);
2183 }
2184
2185 int drm_mode_getblob_ioctl(struct drm_device *dev,
2186 void *data, struct drm_file *file_priv)
2187 {
2188 struct drm_mode_object *obj;
2189 struct drm_mode_get_blob *out_resp = data;
2190 struct drm_property_blob *blob;
2191 int ret = 0;
2192 void *blob_ptr;
2193
2194 mutex_lock(&dev->mode_config.mutex);
2195 obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
2196 if (!obj) {
2197 ret = -EINVAL;
2198 goto done;
2199 }
2200 blob = obj_to_blob(obj);
2201
2202 if (out_resp->length == blob->length) {
2203 blob_ptr = (void *)(unsigned long)out_resp->data;
2204 if (copy_to_user(blob_ptr, blob->data, blob->length)){
2205 ret = -EFAULT;
2206 goto done;
2207 }
2208 }
2209 out_resp->length = blob->length;
2210
2211 done:
2212 mutex_unlock(&dev->mode_config.mutex);
2213 return ret;
2214 }
2215
2216 int drm_mode_connector_update_edid_property(struct drm_connector *connector,
2217 struct edid *edid)
2218 {
2219 struct drm_device *dev = connector->dev;
2220 int ret = 0;
2221
2222 if (connector->edid_blob_ptr)
2223 drm_property_destroy_blob(dev, connector->edid_blob_ptr);
2224
2225 /* Delete edid, when there is none. */
2226 if (!edid) {
2227 connector->edid_blob_ptr = NULL;
2228 ret = drm_connector_property_set_value(connector, dev->mode_config.edid_property, 0);
2229 return ret;
2230 }
2231
2232 connector->edid_blob_ptr = drm_property_create_blob(connector->dev, 128, edid);
2233
2234 ret = drm_connector_property_set_value(connector,
2235 dev->mode_config.edid_property,
2236 connector->edid_blob_ptr->base.id);
2237
2238 return ret;
2239 }
2240 EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
2241
2242 int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
2243 void *data, struct drm_file *file_priv)
2244 {
2245 struct drm_mode_connector_set_property *out_resp = data;
2246 struct drm_mode_object *obj;
2247 struct drm_property *property;
2248 struct drm_connector *connector;
2249 int ret = -EINVAL;
2250 int i;
2251
2252 mutex_lock(&dev->mode_config.mutex);
2253
2254 obj = drm_mode_object_find(dev, out_resp->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2255 if (!obj) {
2256 goto out;
2257 }
2258 connector = obj_to_connector(obj);
2259
2260 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2261 if (connector->property_ids[i] == out_resp->prop_id)
2262 break;
2263 }
2264
2265 if (i == DRM_CONNECTOR_MAX_PROPERTY) {
2266 goto out;
2267 }
2268
2269 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2270 if (!obj) {
2271 goto out;
2272 }
2273 property = obj_to_property(obj);
2274
2275 if (property->flags & DRM_MODE_PROP_IMMUTABLE)
2276 goto out;
2277
2278 if (property->flags & DRM_MODE_PROP_RANGE) {
2279 if (out_resp->value < property->values[0])
2280 goto out;
2281
2282 if (out_resp->value > property->values[1])
2283 goto out;
2284 } else {
2285 int found = 0;
2286 for (i = 0; i < property->num_values; i++) {
2287 if (property->values[i] == out_resp->value) {
2288 found = 1;
2289 break;
2290 }
2291 }
2292 if (!found) {
2293 goto out;
2294 }
2295 }
2296
2297 /* Do DPMS ourselves */
2298 if (property == connector->dev->mode_config.dpms_property) {
2299 if (connector->funcs->dpms)
2300 (*connector->funcs->dpms)(connector, (int) out_resp->value);
2301 ret = 0;
2302 } else if (connector->funcs->set_property)
2303 ret = connector->funcs->set_property(connector, property, out_resp->value);
2304
2305 /* store the property value if succesful */
2306 if (!ret)
2307 drm_connector_property_set_value(connector, property, out_resp->value);
2308 out:
2309 mutex_unlock(&dev->mode_config.mutex);
2310 return ret;
2311 }
2312
2313 int drm_mode_connector_attach_encoder(struct drm_connector *connector,
2314 struct drm_encoder *encoder)
2315 {
2316 int i;
2317
2318 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
2319 if (connector->encoder_ids[i] == 0) {
2320 connector->encoder_ids[i] = encoder->base.id;
2321 return 0;
2322 }
2323 }
2324 return -ENOMEM;
2325 }
2326 EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
2327
2328 void drm_mode_connector_detach_encoder(struct drm_connector *connector,
2329 struct drm_encoder *encoder)
2330 {
2331 int i;
2332 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
2333 if (connector->encoder_ids[i] == encoder->base.id) {
2334 connector->encoder_ids[i] = 0;
2335 if (connector->encoder == encoder)
2336 connector->encoder = NULL;
2337 break;
2338 }
2339 }
2340 }
2341 EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
2342
2343 bool drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
2344 int gamma_size)
2345 {
2346 crtc->gamma_size = gamma_size;
2347
2348 crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
2349 if (!crtc->gamma_store) {
2350 crtc->gamma_size = 0;
2351 return false;
2352 }
2353
2354 return true;
2355 }
2356 EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
2357
2358 int drm_mode_gamma_set_ioctl(struct drm_device *dev,
2359 void *data, struct drm_file *file_priv)
2360 {
2361 struct drm_mode_crtc_lut *crtc_lut = data;
2362 struct drm_mode_object *obj;
2363 struct drm_crtc *crtc;
2364 void *r_base, *g_base, *b_base;
2365 int size;
2366 int ret = 0;
2367
2368 mutex_lock(&dev->mode_config.mutex);
2369 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
2370 if (!obj) {
2371 ret = -EINVAL;
2372 goto out;
2373 }
2374 crtc = obj_to_crtc(obj);
2375
2376 /* memcpy into gamma store */
2377 if (crtc_lut->gamma_size != crtc->gamma_size) {
2378 ret = -EINVAL;
2379 goto out;
2380 }
2381
2382 size = crtc_lut->gamma_size * (sizeof(uint16_t));
2383 r_base = crtc->gamma_store;
2384 if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
2385 ret = -EFAULT;
2386 goto out;
2387 }
2388
2389 g_base = r_base + size;
2390 if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
2391 ret = -EFAULT;
2392 goto out;
2393 }
2394
2395 b_base = g_base + size;
2396 if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
2397 ret = -EFAULT;
2398 goto out;
2399 }
2400
2401 crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, crtc->gamma_size);
2402
2403 out:
2404 mutex_unlock(&dev->mode_config.mutex);
2405 return ret;
2406
2407 }
2408
2409 int drm_mode_gamma_get_ioctl(struct drm_device *dev,
2410 void *data, struct drm_file *file_priv)
2411 {
2412 struct drm_mode_crtc_lut *crtc_lut = data;
2413 struct drm_mode_object *obj;
2414 struct drm_crtc *crtc;
2415 void *r_base, *g_base, *b_base;
2416 int size;
2417 int ret = 0;
2418
2419 mutex_lock(&dev->mode_config.mutex);
2420 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
2421 if (!obj) {
2422 ret = -EINVAL;
2423 goto out;
2424 }
2425 crtc = obj_to_crtc(obj);
2426
2427 /* memcpy into gamma store */
2428 if (crtc_lut->gamma_size != crtc->gamma_size) {
2429 ret = -EINVAL;
2430 goto out;
2431 }
2432
2433 size = crtc_lut->gamma_size * (sizeof(uint16_t));
2434 r_base = crtc->gamma_store;
2435 if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
2436 ret = -EFAULT;
2437 goto out;
2438 }
2439
2440 g_base = r_base + size;
2441 if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
2442 ret = -EFAULT;
2443 goto out;
2444 }
2445
2446 b_base = g_base + size;
2447 if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
2448 ret = -EFAULT;
2449 goto out;
2450 }
2451 out:
2452 mutex_unlock(&dev->mode_config.mutex);
2453 return ret;
2454 }