?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
GUI: Fix Tomato RAF theme for all builds. Compilation typo.
[tomato.git] / release / src-rt-6.x.4708 / linux / linux-2.6.36 / drivers / gpu / drm / drm_crtc.c
blobe8872fccb1bd74ed5bb72ca96a6188633dd1c920
1 /*
2 * Copyright (c) 2006-2008 Intel Corporation
3 * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
4 * Copyright (c) 2008 Red Hat Inc.
5 *
6 * DRM core CRTC related functions
7 *
8 * Permission to use, copy, modify, distribute, and sell this software and its
9 * documentation for any purpose is hereby granted without fee, provided that
10 * the above copyright notice appear in all copies and that both that copyright
11 * notice and this permission notice appear in supporting documentation, and
12 * that the name of the copyright holders not be used in advertising or
13 * publicity pertaining to distribution of the software without specific,
14 * written prior permission. The copyright holders make no representations
15 * about the suitability of this software for any purpose. It is provided "as
16 * is" without express or implied warranty.
17 *
18 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
19 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
20 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
21 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
22 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
23 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
24 * OF THIS SOFTWARE.
25 *
26 * Authors:
27 * Keith Packard
28 * Eric Anholt <eric@anholt.net>
29 * Dave Airlie <airlied@linux.ie>
30 * Jesse Barnes <jesse.barnes@intel.com>
31 */
32 #include <linux/list.h>
33 #include <linux/slab.h>
34 #include "drm.h"
35 #include "drmP.h"
36 #include "drm_crtc.h"
37 #include "drm_edid.h"
38
39 struct drm_prop_enum_list {
40 int type;
41 char *name;
42 };
43
44 /* Avoid boilerplate. I'm tired of typing. */
45 #define DRM_ENUM_NAME_FN(fnname, list) \
46 char *fnname(int val) \
47 { \
48 int i; \
49 for (i = 0; i < ARRAY_SIZE(list); i++) { \
50 if (list[i].type == val) \
51 return list[i].name; \
52 } \
53 return "(unknown)"; \
54 }
55
56 /*
57 * Global properties
58 */
59 static struct drm_prop_enum_list drm_dpms_enum_list[] =
60 { { DRM_MODE_DPMS_ON, "On" },
61 { DRM_MODE_DPMS_STANDBY, "Standby" },
62 { DRM_MODE_DPMS_SUSPEND, "Suspend" },
63 { DRM_MODE_DPMS_OFF, "Off" }
64 };
65
66 DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list)
67
68 /*
69 * Optional properties
70 */
71 static struct drm_prop_enum_list drm_scaling_mode_enum_list[] =
72 {
73 { DRM_MODE_SCALE_NONE, "None" },
74 { DRM_MODE_SCALE_FULLSCREEN, "Full" },
75 { DRM_MODE_SCALE_CENTER, "Center" },
76 { DRM_MODE_SCALE_ASPECT, "Full aspect" },
77 };
78
79 static struct drm_prop_enum_list drm_dithering_mode_enum_list[] =
80 {
81 { DRM_MODE_DITHERING_OFF, "Off" },
82 { DRM_MODE_DITHERING_ON, "On" },
83 { DRM_MODE_DITHERING_AUTO, "Automatic" },
84 };
85
86 /*
87 * Non-global properties, but "required" for certain connectors.
88 */
89 static struct drm_prop_enum_list drm_dvi_i_select_enum_list[] =
90 {
91 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
92 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
93 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
94 };
95
96 DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list)
97
98 static struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] =
99 {
100 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
101 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
102 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
103 };
104
105 DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name,
106 drm_dvi_i_subconnector_enum_list)
107
108 static struct drm_prop_enum_list drm_tv_select_enum_list[] =
109 {
110 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
111 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
112 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
113 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
114 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
115 };
116
117 DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list)
118
119 static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] =
120 {
121 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
122 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
123 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
124 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
125 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
126 };
127
128 DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
129 drm_tv_subconnector_enum_list)
130
131 static struct drm_prop_enum_list drm_dirty_info_enum_list[] = {
132 { DRM_MODE_DIRTY_OFF, "Off" },
133 { DRM_MODE_DIRTY_ON, "On" },
134 { DRM_MODE_DIRTY_ANNOTATE, "Annotate" },
135 };
136
137 DRM_ENUM_NAME_FN(drm_get_dirty_info_name,
138 drm_dirty_info_enum_list)
139
140 struct drm_conn_prop_enum_list {
141 int type;
142 char *name;
143 int count;
144 };
145
146 /*
147 * Connector and encoder types.
148 */
149 static struct drm_conn_prop_enum_list drm_connector_enum_list[] =
150 { { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 },
151 { DRM_MODE_CONNECTOR_VGA, "VGA", 0 },
152 { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 },
153 { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 },
154 { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 },
155 { DRM_MODE_CONNECTOR_Composite, "Composite", 0 },
156 { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 },
157 { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 },
158 { DRM_MODE_CONNECTOR_Component, "Component", 0 },
159 { DRM_MODE_CONNECTOR_9PinDIN, "DIN", 0 },
160 { DRM_MODE_CONNECTOR_DisplayPort, "DP", 0 },
161 { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A", 0 },
162 { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B", 0 },
163 { DRM_MODE_CONNECTOR_TV, "TV", 0 },
164 { DRM_MODE_CONNECTOR_eDP, "eDP", 0 },
165 };
166
167 static struct drm_prop_enum_list drm_encoder_enum_list[] =
168 { { DRM_MODE_ENCODER_NONE, "None" },
169 { DRM_MODE_ENCODER_DAC, "DAC" },
170 { DRM_MODE_ENCODER_TMDS, "TMDS" },
171 { DRM_MODE_ENCODER_LVDS, "LVDS" },
172 { DRM_MODE_ENCODER_TVDAC, "TV" },
173 };
174
175 char *drm_get_encoder_name(struct drm_encoder *encoder)
176 {
177 static char buf[32];
178
179 snprintf(buf, 32, "%s-%d",
180 drm_encoder_enum_list[encoder->encoder_type].name,
181 encoder->base.id);
182 return buf;
183 }
184 EXPORT_SYMBOL(drm_get_encoder_name);
185
186 char *drm_get_connector_name(struct drm_connector *connector)
187 {
188 static char buf[32];
189
190 snprintf(buf, 32, "%s-%d",
191 drm_connector_enum_list[connector->connector_type].name,
192 connector->connector_type_id);
193 return buf;
194 }
195 EXPORT_SYMBOL(drm_get_connector_name);
196
197 char *drm_get_connector_status_name(enum drm_connector_status status)
198 {
199 if (status == connector_status_connected)
200 return "connected";
201 else if (status == connector_status_disconnected)
202 return "disconnected";
203 else
204 return "unknown";
205 }
206
207 /**
208 * drm_mode_object_get - allocate a new identifier
209 * @dev: DRM device
210 * @ptr: object pointer, used to generate unique ID
211 * @type: object type
212 *
213 * LOCKING:
214 *
215 * Create a unique identifier based on @ptr in @dev's identifier space. Used
216 * for tracking modes, CRTCs and connectors.
217 *
218 * RETURNS:
219 * New unique (relative to other objects in @dev) integer identifier for the
220 * object.
221 */
222 static int drm_mode_object_get(struct drm_device *dev,
223 struct drm_mode_object *obj, uint32_t obj_type)
224 {
225 int new_id = 0;
226 int ret;
227
228 again:
229 if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) {
230 DRM_ERROR("Ran out memory getting a mode number\n");
231 return -EINVAL;
232 }
233
234 mutex_lock(&dev->mode_config.idr_mutex);
235 ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id);
236 mutex_unlock(&dev->mode_config.idr_mutex);
237 if (ret == -EAGAIN)
238 goto again;
239
240 obj->id = new_id;
241 obj->type = obj_type;
242 return 0;
243 }
244
245 /**
246 * drm_mode_object_put - free an identifer
247 * @dev: DRM device
248 * @id: ID to free
249 *
250 * LOCKING:
251 * Caller must hold DRM mode_config lock.
252 *
253 * Free @id from @dev's unique identifier pool.
254 */
255 static void drm_mode_object_put(struct drm_device *dev,
256 struct drm_mode_object *object)
257 {
258 mutex_lock(&dev->mode_config.idr_mutex);
259 idr_remove(&dev->mode_config.crtc_idr, object->id);
260 mutex_unlock(&dev->mode_config.idr_mutex);
261 }
262
263 struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
264 uint32_t id, uint32_t type)
265 {
266 struct drm_mode_object *obj = NULL;
267
268 mutex_lock(&dev->mode_config.idr_mutex);
269 obj = idr_find(&dev->mode_config.crtc_idr, id);
270 if (!obj || (obj->type != type) || (obj->id != id))
271 obj = NULL;
272 mutex_unlock(&dev->mode_config.idr_mutex);
273
274 return obj;
275 }
276 EXPORT_SYMBOL(drm_mode_object_find);
277
278 /**
279 * drm_framebuffer_init - initialize a framebuffer
280 * @dev: DRM device
281 *
282 * LOCKING:
283 * Caller must hold mode config lock.
284 *
285 * Allocates an ID for the framebuffer's parent mode object, sets its mode
286 * functions & device file and adds it to the master fd list.
287 *
288 * RETURNS:
289 * Zero on success, error code on failure.
290 */
291 int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
292 const struct drm_framebuffer_funcs *funcs)
293 {
294 int ret;
295
296 ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
297 if (ret) {
298 return ret;
299 }
300
301 fb->dev = dev;
302 fb->funcs = funcs;
303 dev->mode_config.num_fb++;
304 list_add(&fb->head, &dev->mode_config.fb_list);
305
306 return 0;
307 }
308 EXPORT_SYMBOL(drm_framebuffer_init);
309
310 /**
311 * drm_framebuffer_cleanup - remove a framebuffer object
312 * @fb: framebuffer to remove
313 *
314 * LOCKING:
315 * Caller must hold mode config lock.
316 *
317 * Scans all the CRTCs in @dev's mode_config. If they're using @fb, removes
318 * it, setting it to NULL.
319 */
320 void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
321 {
322 struct drm_device *dev = fb->dev;
323 struct drm_crtc *crtc;
324 struct drm_mode_set set;
325 int ret;
326
327 /* remove from any CRTC */
328 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
329 if (crtc->fb == fb) {
330 /* should turn off the crtc */
331 memset(&set, 0, sizeof(struct drm_mode_set));
332 set.crtc = crtc;
333 set.fb = NULL;
334 ret = crtc->funcs->set_config(&set);
335 if (ret)
336 DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
337 }
338 }
339
340 drm_mode_object_put(dev, &fb->base);
341 list_del(&fb->head);
342 dev->mode_config.num_fb--;
343 }
344 EXPORT_SYMBOL(drm_framebuffer_cleanup);
345
346 /**
347 * drm_crtc_init - Initialise a new CRTC object
348 * @dev: DRM device
349 * @crtc: CRTC object to init
350 * @funcs: callbacks for the new CRTC
351 *
352 * LOCKING:
353 * Caller must hold mode config lock.
354 *
355 * Inits a new object created as base part of an driver crtc object.
356 */
357 void drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
358 const struct drm_crtc_funcs *funcs)
359 {
360 crtc->dev = dev;
361 crtc->funcs = funcs;
362
363 mutex_lock(&dev->mode_config.mutex);
364 drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
365
366 list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
367 dev->mode_config.num_crtc++;
368 mutex_unlock(&dev->mode_config.mutex);
369 }
370 EXPORT_SYMBOL(drm_crtc_init);
371
372 /**
373 * drm_crtc_cleanup - Cleans up the core crtc usage.
374 * @crtc: CRTC to cleanup
375 *
376 * LOCKING:
377 * Caller must hold mode config lock.
378 *
379 * Cleanup @crtc. Removes from drm modesetting space
380 * does NOT free object, caller does that.
381 */
382 void drm_crtc_cleanup(struct drm_crtc *crtc)
383 {
384 struct drm_device *dev = crtc->dev;
385
386 if (crtc->gamma_store) {
387 kfree(crtc->gamma_store);
388 crtc->gamma_store = NULL;
389 }
390
391 drm_mode_object_put(dev, &crtc->base);
392 list_del(&crtc->head);
393 dev->mode_config.num_crtc--;
394 }
395 EXPORT_SYMBOL(drm_crtc_cleanup);
396
397 /**
398 * drm_mode_probed_add - add a mode to a connector's probed mode list
399 * @connector: connector the new mode
400 * @mode: mode data
401 *
402 * LOCKING:
403 * Caller must hold mode config lock.
404 *
405 * Add @mode to @connector's mode list for later use.
406 */
407 void drm_mode_probed_add(struct drm_connector *connector,
408 struct drm_display_mode *mode)
409 {
410 list_add(&mode->head, &connector->probed_modes);
411 }
412 EXPORT_SYMBOL(drm_mode_probed_add);
413
414 /**
415 * drm_mode_remove - remove and free a mode
416 * @connector: connector list to modify
417 * @mode: mode to remove
418 *
419 * LOCKING:
420 * Caller must hold mode config lock.
421 *
422 * Remove @mode from @connector's mode list, then free it.
423 */
424 void drm_mode_remove(struct drm_connector *connector,
425 struct drm_display_mode *mode)
426 {
427 list_del(&mode->head);
428 kfree(mode);
429 }
430 EXPORT_SYMBOL(drm_mode_remove);
431
432 /**
433 * drm_connector_init - Init a preallocated connector
434 * @dev: DRM device
435 * @connector: the connector to init
436 * @funcs: callbacks for this connector
437 * @name: user visible name of the connector
438 *
439 * LOCKING:
440 * Caller must hold @dev's mode_config lock.
441 *
442 * Initialises a preallocated connector. Connectors should be
443 * subclassed as part of driver connector objects.
444 */
445 void drm_connector_init(struct drm_device *dev,
446 struct drm_connector *connector,
447 const struct drm_connector_funcs *funcs,
448 int connector_type)
449 {
450 mutex_lock(&dev->mode_config.mutex);
451
452 connector->dev = dev;
453 connector->funcs = funcs;
454 drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
455 connector->connector_type = connector_type;
456 connector->connector_type_id =
457 ++drm_connector_enum_list[connector_type].count; /* TODO */
458 INIT_LIST_HEAD(&connector->user_modes);
459 INIT_LIST_HEAD(&connector->probed_modes);
460 INIT_LIST_HEAD(&connector->modes);
461 connector->edid_blob_ptr = NULL;
462
463 list_add_tail(&connector->head, &dev->mode_config.connector_list);
464 dev->mode_config.num_connector++;
465
466 drm_connector_attach_property(connector,
467 dev->mode_config.edid_property, 0);
468
469 drm_connector_attach_property(connector,
470 dev->mode_config.dpms_property, 0);
471
472 mutex_unlock(&dev->mode_config.mutex);
473 }
474 EXPORT_SYMBOL(drm_connector_init);
475
476 /**
477 * drm_connector_cleanup - cleans up an initialised connector
478 * @connector: connector to cleanup
479 *
480 * LOCKING:
481 * Caller must hold @dev's mode_config lock.
482 *
483 * Cleans up the connector but doesn't free the object.
484 */
485 void drm_connector_cleanup(struct drm_connector *connector)
486 {
487 struct drm_device *dev = connector->dev;
488 struct drm_display_mode *mode, *t;
489
490 list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
491 drm_mode_remove(connector, mode);
492
493 list_for_each_entry_safe(mode, t, &connector->modes, head)
494 drm_mode_remove(connector, mode);
495
496 list_for_each_entry_safe(mode, t, &connector->user_modes, head)
497 drm_mode_remove(connector, mode);
498
499 mutex_lock(&dev->mode_config.mutex);
500 drm_mode_object_put(dev, &connector->base);
501 list_del(&connector->head);
502 mutex_unlock(&dev->mode_config.mutex);
503 }
504 EXPORT_SYMBOL(drm_connector_cleanup);
505
506 void drm_encoder_init(struct drm_device *dev,
507 struct drm_encoder *encoder,
508 const struct drm_encoder_funcs *funcs,
509 int encoder_type)
510 {
511 mutex_lock(&dev->mode_config.mutex);
512
513 encoder->dev = dev;
514
515 drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
516 encoder->encoder_type = encoder_type;
517 encoder->funcs = funcs;
518
519 list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
520 dev->mode_config.num_encoder++;
521
522 mutex_unlock(&dev->mode_config.mutex);
523 }
524 EXPORT_SYMBOL(drm_encoder_init);
525
526 void drm_encoder_cleanup(struct drm_encoder *encoder)
527 {
528 struct drm_device *dev = encoder->dev;
529 mutex_lock(&dev->mode_config.mutex);
530 drm_mode_object_put(dev, &encoder->base);
531 list_del(&encoder->head);
532 mutex_unlock(&dev->mode_config.mutex);
533 }
534 EXPORT_SYMBOL(drm_encoder_cleanup);
535
536 /**
537 * drm_mode_create - create a new display mode
538 * @dev: DRM device
539 *
540 * LOCKING:
541 * Caller must hold DRM mode_config lock.
542 *
543 * Create a new drm_display_mode, give it an ID, and return it.
544 *
545 * RETURNS:
546 * Pointer to new mode on success, NULL on error.
547 */
548 struct drm_display_mode *drm_mode_create(struct drm_device *dev)
549 {
550 struct drm_display_mode *nmode;
551
552 nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
553 if (!nmode)
554 return NULL;
555
556 drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE);
557 return nmode;
558 }
559 EXPORT_SYMBOL(drm_mode_create);
560
561 /**
562 * drm_mode_destroy - remove a mode
563 * @dev: DRM device
564 * @mode: mode to remove
565 *
566 * LOCKING:
567 * Caller must hold mode config lock.
568 *
569 * Free @mode's unique identifier, then free it.
570 */
571 void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
572 {
573 drm_mode_object_put(dev, &mode->base);
574
575 kfree(mode);
576 }
577 EXPORT_SYMBOL(drm_mode_destroy);
578
579 static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
580 {
581 struct drm_property *edid;
582 struct drm_property *dpms;
583 int i;
584
585 /*
586 * Standard properties (apply to all connectors)
587 */
588 edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
589 DRM_MODE_PROP_IMMUTABLE,
590 "EDID", 0);
591 dev->mode_config.edid_property = edid;
592
593 dpms = drm_property_create(dev, DRM_MODE_PROP_ENUM,
594 "DPMS", ARRAY_SIZE(drm_dpms_enum_list));
595 for (i = 0; i < ARRAY_SIZE(drm_dpms_enum_list); i++)
596 drm_property_add_enum(dpms, i, drm_dpms_enum_list[i].type,
597 drm_dpms_enum_list[i].name);
598 dev->mode_config.dpms_property = dpms;
599
600 return 0;
601 }
602
603 /**
604 * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
605 * @dev: DRM device
606 *
607 * Called by a driver the first time a DVI-I connector is made.
608 */
609 int drm_mode_create_dvi_i_properties(struct drm_device *dev)
610 {
611 struct drm_property *dvi_i_selector;
612 struct drm_property *dvi_i_subconnector;
613 int i;
614
615 if (dev->mode_config.dvi_i_select_subconnector_property)
616 return 0;
617
618 dvi_i_selector =
619 drm_property_create(dev, DRM_MODE_PROP_ENUM,
620 "select subconnector",
621 ARRAY_SIZE(drm_dvi_i_select_enum_list));
622 for (i = 0; i < ARRAY_SIZE(drm_dvi_i_select_enum_list); i++)
623 drm_property_add_enum(dvi_i_selector, i,
624 drm_dvi_i_select_enum_list[i].type,
625 drm_dvi_i_select_enum_list[i].name);
626 dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
627
628 dvi_i_subconnector =
629 drm_property_create(dev, DRM_MODE_PROP_ENUM |
630 DRM_MODE_PROP_IMMUTABLE,
631 "subconnector",
632 ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
633 for (i = 0; i < ARRAY_SIZE(drm_dvi_i_subconnector_enum_list); i++)
634 drm_property_add_enum(dvi_i_subconnector, i,
635 drm_dvi_i_subconnector_enum_list[i].type,
636 drm_dvi_i_subconnector_enum_list[i].name);
637 dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
638
639 return 0;
640 }
641 EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
642
643 /**
644 * drm_create_tv_properties - create TV specific connector properties
645 * @dev: DRM device
646 * @num_modes: number of different TV formats (modes) supported
647 * @modes: array of pointers to strings containing name of each format
648 *
649 * Called by a driver's TV initialization routine, this function creates
650 * the TV specific connector properties for a given device. Caller is
651 * responsible for allocating a list of format names and passing them to
652 * this routine.
653 */
654 int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
655 char *modes[])
656 {
657 struct drm_property *tv_selector;
658 struct drm_property *tv_subconnector;
659 int i;
660
661 if (dev->mode_config.tv_select_subconnector_property)
662 return 0;
663
664 /*
665 * Basic connector properties
666 */
667 tv_selector = drm_property_create(dev, DRM_MODE_PROP_ENUM,
668 "select subconnector",
669 ARRAY_SIZE(drm_tv_select_enum_list));
670 for (i = 0; i < ARRAY_SIZE(drm_tv_select_enum_list); i++)
671 drm_property_add_enum(tv_selector, i,
672 drm_tv_select_enum_list[i].type,
673 drm_tv_select_enum_list[i].name);
674 dev->mode_config.tv_select_subconnector_property = tv_selector;
675
676 tv_subconnector =
677 drm_property_create(dev, DRM_MODE_PROP_ENUM |
678 DRM_MODE_PROP_IMMUTABLE, "subconnector",
679 ARRAY_SIZE(drm_tv_subconnector_enum_list));
680 for (i = 0; i < ARRAY_SIZE(drm_tv_subconnector_enum_list); i++)
681 drm_property_add_enum(tv_subconnector, i,
682 drm_tv_subconnector_enum_list[i].type,
683 drm_tv_subconnector_enum_list[i].name);
684 dev->mode_config.tv_subconnector_property = tv_subconnector;
685
686 /*
687 * Other, TV specific properties: margins & TV modes.
688 */
689 dev->mode_config.tv_left_margin_property =
690 drm_property_create(dev, DRM_MODE_PROP_RANGE,
691 "left margin", 2);
692 dev->mode_config.tv_left_margin_property->values[0] = 0;
693 dev->mode_config.tv_left_margin_property->values[1] = 100;
694
695 dev->mode_config.tv_right_margin_property =
696 drm_property_create(dev, DRM_MODE_PROP_RANGE,
697 "right margin", 2);
698 dev->mode_config.tv_right_margin_property->values[0] = 0;
699 dev->mode_config.tv_right_margin_property->values[1] = 100;
700
701 dev->mode_config.tv_top_margin_property =
702 drm_property_create(dev, DRM_MODE_PROP_RANGE,
703 "top margin", 2);
704 dev->mode_config.tv_top_margin_property->values[0] = 0;
705 dev->mode_config.tv_top_margin_property->values[1] = 100;
706
707 dev->mode_config.tv_bottom_margin_property =
708 drm_property_create(dev, DRM_MODE_PROP_RANGE,
709 "bottom margin", 2);
710 dev->mode_config.tv_bottom_margin_property->values[0] = 0;
711 dev->mode_config.tv_bottom_margin_property->values[1] = 100;
712
713 dev->mode_config.tv_mode_property =
714 drm_property_create(dev, DRM_MODE_PROP_ENUM,
715 "mode", num_modes);
716 for (i = 0; i < num_modes; i++)
717 drm_property_add_enum(dev->mode_config.tv_mode_property, i,
718 i, modes[i]);
719
720 dev->mode_config.tv_brightness_property =
721 drm_property_create(dev, DRM_MODE_PROP_RANGE,
722 "brightness", 2);
723 dev->mode_config.tv_brightness_property->values[0] = 0;
724 dev->mode_config.tv_brightness_property->values[1] = 100;
725
726 dev->mode_config.tv_contrast_property =
727 drm_property_create(dev, DRM_MODE_PROP_RANGE,
728 "contrast", 2);
729 dev->mode_config.tv_contrast_property->values[0] = 0;
730 dev->mode_config.tv_contrast_property->values[1] = 100;
731
732 dev->mode_config.tv_flicker_reduction_property =
733 drm_property_create(dev, DRM_MODE_PROP_RANGE,
734 "flicker reduction", 2);
735 dev->mode_config.tv_flicker_reduction_property->values[0] = 0;
736 dev->mode_config.tv_flicker_reduction_property->values[1] = 100;
737
738 dev->mode_config.tv_overscan_property =
739 drm_property_create(dev, DRM_MODE_PROP_RANGE,
740 "overscan", 2);
741 dev->mode_config.tv_overscan_property->values[0] = 0;
742 dev->mode_config.tv_overscan_property->values[1] = 100;
743
744 dev->mode_config.tv_saturation_property =
745 drm_property_create(dev, DRM_MODE_PROP_RANGE,
746 "saturation", 2);
747 dev->mode_config.tv_saturation_property->values[0] = 0;
748 dev->mode_config.tv_saturation_property->values[1] = 100;
749
750 dev->mode_config.tv_hue_property =
751 drm_property_create(dev, DRM_MODE_PROP_RANGE,
752 "hue", 2);
753 dev->mode_config.tv_hue_property->values[0] = 0;
754 dev->mode_config.tv_hue_property->values[1] = 100;
755
756 return 0;
757 }
758 EXPORT_SYMBOL(drm_mode_create_tv_properties);
759
760 /**
761 * drm_mode_create_scaling_mode_property - create scaling mode property
762 * @dev: DRM device
763 *
764 * Called by a driver the first time it's needed, must be attached to desired
765 * connectors.
766 */
767 int drm_mode_create_scaling_mode_property(struct drm_device *dev)
768 {
769 struct drm_property *scaling_mode;
770 int i;
771
772 if (dev->mode_config.scaling_mode_property)
773 return 0;
774
775 scaling_mode =
776 drm_property_create(dev, DRM_MODE_PROP_ENUM, "scaling mode",
777 ARRAY_SIZE(drm_scaling_mode_enum_list));
778 for (i = 0; i < ARRAY_SIZE(drm_scaling_mode_enum_list); i++)
779 drm_property_add_enum(scaling_mode, i,
780 drm_scaling_mode_enum_list[i].type,
781 drm_scaling_mode_enum_list[i].name);
782
783 dev->mode_config.scaling_mode_property = scaling_mode;
784
785 return 0;
786 }
787 EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
788
789 /**
790 * drm_mode_create_dithering_property - create dithering property
791 * @dev: DRM device
792 *
793 * Called by a driver the first time it's needed, must be attached to desired
794 * connectors.
795 */
796 int drm_mode_create_dithering_property(struct drm_device *dev)
797 {
798 struct drm_property *dithering_mode;
799 int i;
800
801 if (dev->mode_config.dithering_mode_property)
802 return 0;
803
804 dithering_mode =
805 drm_property_create(dev, DRM_MODE_PROP_ENUM, "dithering",
806 ARRAY_SIZE(drm_dithering_mode_enum_list));
807 for (i = 0; i < ARRAY_SIZE(drm_dithering_mode_enum_list); i++)
808 drm_property_add_enum(dithering_mode, i,
809 drm_dithering_mode_enum_list[i].type,
810 drm_dithering_mode_enum_list[i].name);
811 dev->mode_config.dithering_mode_property = dithering_mode;
812
813 return 0;
814 }
815 EXPORT_SYMBOL(drm_mode_create_dithering_property);
816
817 /**
818 * drm_mode_create_dirty_property - create dirty property
819 * @dev: DRM device
820 *
821 * Called by a driver the first time it's needed, must be attached to desired
822 * connectors.
823 */
824 int drm_mode_create_dirty_info_property(struct drm_device *dev)
825 {
826 struct drm_property *dirty_info;
827 int i;
828
829 if (dev->mode_config.dirty_info_property)
830 return 0;
831
832 dirty_info =
833 drm_property_create(dev, DRM_MODE_PROP_ENUM |
834 DRM_MODE_PROP_IMMUTABLE,
835 "dirty",
836 ARRAY_SIZE(drm_dirty_info_enum_list));
837 for (i = 0; i < ARRAY_SIZE(drm_dirty_info_enum_list); i++)
838 drm_property_add_enum(dirty_info, i,
839 drm_dirty_info_enum_list[i].type,
840 drm_dirty_info_enum_list[i].name);
841 dev->mode_config.dirty_info_property = dirty_info;
842
843 return 0;
844 }
845 EXPORT_SYMBOL(drm_mode_create_dirty_info_property);
846
847 /**
848 * drm_mode_config_init - initialize DRM mode_configuration structure
849 * @dev: DRM device
850 *
851 * LOCKING:
852 * None, should happen single threaded at init time.
853 *
854 * Initialize @dev's mode_config structure, used for tracking the graphics
855 * configuration of @dev.
856 */
857 void drm_mode_config_init(struct drm_device *dev)
858 {
859 mutex_init(&dev->mode_config.mutex);
860 mutex_init(&dev->mode_config.idr_mutex);
861 INIT_LIST_HEAD(&dev->mode_config.fb_list);
862 INIT_LIST_HEAD(&dev->mode_config.crtc_list);
863 INIT_LIST_HEAD(&dev->mode_config.connector_list);
864 INIT_LIST_HEAD(&dev->mode_config.encoder_list);
865 INIT_LIST_HEAD(&dev->mode_config.property_list);
866 INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
867 idr_init(&dev->mode_config.crtc_idr);
868
869 mutex_lock(&dev->mode_config.mutex);
870 drm_mode_create_standard_connector_properties(dev);
871 mutex_unlock(&dev->mode_config.mutex);
872
873 /* Just to be sure */
874 dev->mode_config.num_fb = 0;
875 dev->mode_config.num_connector = 0;
876 dev->mode_config.num_crtc = 0;
877 dev->mode_config.num_encoder = 0;
878 }
879 EXPORT_SYMBOL(drm_mode_config_init);
880
881 int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
882 {
883 uint32_t total_objects = 0;
884
885 total_objects += dev->mode_config.num_crtc;
886 total_objects += dev->mode_config.num_connector;
887 total_objects += dev->mode_config.num_encoder;
888
889 if (total_objects == 0)
890 return -EINVAL;
891
892 group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
893 if (!group->id_list)
894 return -ENOMEM;
895
896 group->num_crtcs = 0;
897 group->num_connectors = 0;
898 group->num_encoders = 0;
899 return 0;
900 }
901
902 int drm_mode_group_init_legacy_group(struct drm_device *dev,
903 struct drm_mode_group *group)
904 {
905 struct drm_crtc *crtc;
906 struct drm_encoder *encoder;
907 struct drm_connector *connector;
908 int ret;
909
910 if ((ret = drm_mode_group_init(dev, group)))
911 return ret;
912
913 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
914 group->id_list[group->num_crtcs++] = crtc->base.id;
915
916 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
917 group->id_list[group->num_crtcs + group->num_encoders++] =
918 encoder->base.id;
919
920 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
921 group->id_list[group->num_crtcs + group->num_encoders +
922 group->num_connectors++] = connector->base.id;
923
924 return 0;
925 }
926
927 void drm_mode_config_cleanup(struct drm_device *dev)
928 {
929 struct drm_connector *connector, *ot;
930 struct drm_crtc *crtc, *ct;
931 struct drm_encoder *encoder, *enct;
932 struct drm_framebuffer *fb, *fbt;
933 struct drm_property *property, *pt;
934
935 list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
936 head) {
937 encoder->funcs->destroy(encoder);
938 }
939
940 list_for_each_entry_safe(connector, ot,
941 &dev->mode_config.connector_list, head) {
942 connector->funcs->destroy(connector);
943 }
944
945 list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
946 head) {
947 drm_property_destroy(dev, property);
948 }
949
950 list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
951 fb->funcs->destroy(fb);
952 }
953
954 list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
955 crtc->funcs->destroy(crtc);
956 }
957
958 }
959 EXPORT_SYMBOL(drm_mode_config_cleanup);
960
961 /**
962 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
963 * @out: drm_mode_modeinfo struct to return to the user
964 * @in: drm_display_mode to use
965 *
966 * LOCKING:
967 * None.
968 *
969 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
970 * the user.
971 */
972 void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
973 struct drm_display_mode *in)
974 {
975 out->clock = in->clock;
976 out->hdisplay = in->hdisplay;
977 out->hsync_start = in->hsync_start;
978 out->hsync_end = in->hsync_end;
979 out->htotal = in->htotal;
980 out->hskew = in->hskew;
981 out->vdisplay = in->vdisplay;
982 out->vsync_start = in->vsync_start;
983 out->vsync_end = in->vsync_end;
984 out->vtotal = in->vtotal;
985 out->vscan = in->vscan;
986 out->vrefresh = in->vrefresh;
987 out->flags = in->flags;
988 out->type = in->type;
989 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
990 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
991 }
992
993 /**
994 * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
995 * @out: drm_display_mode to return to the user
996 * @in: drm_mode_modeinfo to use
997 *
998 * LOCKING:
999 * None.
1000 *
1001 * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
1002 * the caller.
1003 */
1004 void drm_crtc_convert_umode(struct drm_display_mode *out,
1005 struct drm_mode_modeinfo *in)
1006 {
1007 out->clock = in->clock;
1008 out->hdisplay = in->hdisplay;
1009 out->hsync_start = in->hsync_start;
1010 out->hsync_end = in->hsync_end;
1011 out->htotal = in->htotal;
1012 out->hskew = in->hskew;
1013 out->vdisplay = in->vdisplay;
1014 out->vsync_start = in->vsync_start;
1015 out->vsync_end = in->vsync_end;
1016 out->vtotal = in->vtotal;
1017 out->vscan = in->vscan;
1018 out->vrefresh = in->vrefresh;
1019 out->flags = in->flags;
1020 out->type = in->type;
1021 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1022 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1023 }
1024
1025 /**
1026 * drm_mode_getresources - get graphics configuration
1027 * @inode: inode from the ioctl
1028 * @filp: file * from the ioctl
1029 * @cmd: cmd from ioctl
1030 * @arg: arg from ioctl
1031 *
1032 * LOCKING:
1033 * Takes mode config lock.
1034 *
1035 * Construct a set of configuration description structures and return
1036 * them to the user, including CRTC, connector and framebuffer configuration.
1037 *
1038 * Called by the user via ioctl.
1039 *
1040 * RETURNS:
1041 * Zero on success, errno on failure.
1042 */
1043 int drm_mode_getresources(struct drm_device *dev, void *data,
1044 struct drm_file *file_priv)
1045 {
1046 struct drm_mode_card_res *card_res = data;
1047 struct list_head *lh;
1048 struct drm_framebuffer *fb;
1049 struct drm_connector *connector;
1050 struct drm_crtc *crtc;
1051 struct drm_encoder *encoder;
1052 int ret = 0;
1053 int connector_count = 0;
1054 int crtc_count = 0;
1055 int fb_count = 0;
1056 int encoder_count = 0;
1057 int copied = 0, i;
1058 uint32_t __user *fb_id;
1059 uint32_t __user *crtc_id;
1060 uint32_t __user *connector_id;
1061 uint32_t __user *encoder_id;
1062 struct drm_mode_group *mode_group;
1063
1064 mutex_lock(&dev->mode_config.mutex);
1065
1066 /*
1067 * For the non-control nodes we need to limit the list of resources
1068 * by IDs in the group list for this node
1069 */
1070 list_for_each(lh, &file_priv->fbs)
1071 fb_count++;
1072
1073 mode_group = &file_priv->master->minor->mode_group;
1074 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1075
1076 list_for_each(lh, &dev->mode_config.crtc_list)
1077 crtc_count++;
1078
1079 list_for_each(lh, &dev->mode_config.connector_list)
1080 connector_count++;
1081
1082 list_for_each(lh, &dev->mode_config.encoder_list)
1083 encoder_count++;
1084 } else {
1085
1086 crtc_count = mode_group->num_crtcs;
1087 connector_count = mode_group->num_connectors;
1088 encoder_count = mode_group->num_encoders;
1089 }
1090
1091 card_res->max_height = dev->mode_config.max_height;
1092 card_res->min_height = dev->mode_config.min_height;
1093 card_res->max_width = dev->mode_config.max_width;
1094 card_res->min_width = dev->mode_config.min_width;
1095
1096 /* handle this in 4 parts */
1097 /* FBs */
1098 if (card_res->count_fbs >= fb_count) {
1099 copied = 0;
1100 fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
1101 list_for_each_entry(fb, &file_priv->fbs, head) {
1102 if (put_user(fb->base.id, fb_id + copied)) {
1103 ret = -EFAULT;
1104 goto out;
1105 }
1106 copied++;
1107 }
1108 }
1109 card_res->count_fbs = fb_count;
1110
1111 /* CRTCs */
1112 if (card_res->count_crtcs >= crtc_count) {
1113 copied = 0;
1114 crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
1115 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1116 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
1117 head) {
1118 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
1119 if (put_user(crtc->base.id, crtc_id + copied)) {
1120 ret = -EFAULT;
1121 goto out;
1122 }
1123 copied++;
1124 }
1125 } else {
1126 for (i = 0; i < mode_group->num_crtcs; i++) {
1127 if (put_user(mode_group->id_list[i],
1128 crtc_id + copied)) {
1129 ret = -EFAULT;
1130 goto out;
1131 }
1132 copied++;
1133 }
1134 }
1135 }
1136 card_res->count_crtcs = crtc_count;
1137
1138 /* Encoders */
1139 if (card_res->count_encoders >= encoder_count) {
1140 copied = 0;
1141 encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
1142 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1143 list_for_each_entry(encoder,
1144 &dev->mode_config.encoder_list,
1145 head) {
1146 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id,
1147 drm_get_encoder_name(encoder));
1148 if (put_user(encoder->base.id, encoder_id +
1149 copied)) {
1150 ret = -EFAULT;
1151 goto out;
1152 }
1153 copied++;
1154 }
1155 } else {
1156 for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
1157 if (put_user(mode_group->id_list[i],
1158 encoder_id + copied)) {
1159 ret = -EFAULT;
1160 goto out;
1161 }
1162 copied++;
1163 }
1164
1165 }
1166 }
1167 card_res->count_encoders = encoder_count;
1168
1169 /* Connectors */
1170 if (card_res->count_connectors >= connector_count) {
1171 copied = 0;
1172 connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
1173 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1174 list_for_each_entry(connector,
1175 &dev->mode_config.connector_list,
1176 head) {
1177 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1178 connector->base.id,
1179 drm_get_connector_name(connector));
1180 if (put_user(connector->base.id,
1181 connector_id + copied)) {
1182 ret = -EFAULT;
1183 goto out;
1184 }
1185 copied++;
1186 }
1187 } else {
1188 int start = mode_group->num_crtcs +
1189 mode_group->num_encoders;
1190 for (i = start; i < start + mode_group->num_connectors; i++) {
1191 if (put_user(mode_group->id_list[i],
1192 connector_id + copied)) {
1193 ret = -EFAULT;
1194 goto out;
1195 }
1196 copied++;
1197 }
1198 }
1199 }
1200 card_res->count_connectors = connector_count;
1201
1202 DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs,
1203 card_res->count_connectors, card_res->count_encoders);
1204
1205 out:
1206 mutex_unlock(&dev->mode_config.mutex);
1207 return ret;
1208 }
1209
1210 int drm_mode_getcrtc(struct drm_device *dev,
1211 void *data, struct drm_file *file_priv)
1212 {
1213 struct drm_mode_crtc *crtc_resp = data;
1214 struct drm_crtc *crtc;
1215 struct drm_mode_object *obj;
1216 int ret = 0;
1217
1218 mutex_lock(&dev->mode_config.mutex);
1219
1220 obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
1221 DRM_MODE_OBJECT_CRTC);
1222 if (!obj) {
1223 ret = -EINVAL;
1224 goto out;
1225 }
1226 crtc = obj_to_crtc(obj);
1227
1228 crtc_resp->x = crtc->x;
1229 crtc_resp->y = crtc->y;
1230 crtc_resp->gamma_size = crtc->gamma_size;
1231 if (crtc->fb)
1232 crtc_resp->fb_id = crtc->fb->base.id;
1233 else
1234 crtc_resp->fb_id = 0;
1235
1236 if (crtc->enabled) {
1237
1238 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
1239 crtc_resp->mode_valid = 1;
1240
1241 } else {
1242 crtc_resp->mode_valid = 0;
1243 }
1244
1245 out:
1246 mutex_unlock(&dev->mode_config.mutex);
1247 return ret;
1248 }
1249
1250 int drm_mode_getconnector(struct drm_device *dev, void *data,
1251 struct drm_file *file_priv)
1252 {
1253 struct drm_mode_get_connector *out_resp = data;
1254 struct drm_mode_object *obj;
1255 struct drm_connector *connector;
1256 struct drm_display_mode *mode;
1257 int mode_count = 0;
1258 int props_count = 0;
1259 int encoders_count = 0;
1260 int ret = 0;
1261 int copied = 0;
1262 int i;
1263 struct drm_mode_modeinfo u_mode;
1264 struct drm_mode_modeinfo __user *mode_ptr;
1265 uint32_t __user *prop_ptr;
1266 uint64_t __user *prop_values;
1267 uint32_t __user *encoder_ptr;
1268
1269 memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
1270
1271 DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id);
1272
1273 mutex_lock(&dev->mode_config.mutex);
1274
1275 obj = drm_mode_object_find(dev, out_resp->connector_id,
1276 DRM_MODE_OBJECT_CONNECTOR);
1277 if (!obj) {
1278 ret = -EINVAL;
1279 goto out;
1280 }
1281 connector = obj_to_connector(obj);
1282
1283 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1284 if (connector->property_ids[i] != 0) {
1285 props_count++;
1286 }
1287 }
1288
1289 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1290 if (connector->encoder_ids[i] != 0) {
1291 encoders_count++;
1292 }
1293 }
1294
1295 if (out_resp->count_modes == 0) {
1296 connector->funcs->fill_modes(connector,
1297 dev->mode_config.max_width,
1298 dev->mode_config.max_height);
1299 }
1300
1301 /* delayed so we get modes regardless of pre-fill_modes state */
1302 list_for_each_entry(mode, &connector->modes, head)
1303 mode_count++;
1304
1305 out_resp->connector_id = connector->base.id;
1306 out_resp->connector_type = connector->connector_type;
1307 out_resp->connector_type_id = connector->connector_type_id;
1308 out_resp->mm_width = connector->display_info.width_mm;
1309 out_resp->mm_height = connector->display_info.height_mm;
1310 out_resp->subpixel = connector->display_info.subpixel_order;
1311 out_resp->connection = connector->status;
1312 if (connector->encoder)
1313 out_resp->encoder_id = connector->encoder->base.id;
1314 else
1315 out_resp->encoder_id = 0;
1316
1317 /*
1318 * This ioctl is called twice, once to determine how much space is
1319 * needed, and the 2nd time to fill it.
1320 */
1321 if ((out_resp->count_modes >= mode_count) && mode_count) {
1322 copied = 0;
1323 mode_ptr = (struct drm_mode_modeinfo *)(unsigned long)out_resp->modes_ptr;
1324 list_for_each_entry(mode, &connector->modes, head) {
1325 drm_crtc_convert_to_umode(&u_mode, mode);
1326 if (copy_to_user(mode_ptr + copied,
1327 &u_mode, sizeof(u_mode))) {
1328 ret = -EFAULT;
1329 goto out;
1330 }
1331 copied++;
1332 }
1333 }
1334 out_resp->count_modes = mode_count;
1335
1336 if ((out_resp->count_props >= props_count) && props_count) {
1337 copied = 0;
1338 prop_ptr = (uint32_t *)(unsigned long)(out_resp->props_ptr);
1339 prop_values = (uint64_t *)(unsigned long)(out_resp->prop_values_ptr);
1340 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1341 if (connector->property_ids[i] != 0) {
1342 if (put_user(connector->property_ids[i],
1343 prop_ptr + copied)) {
1344 ret = -EFAULT;
1345 goto out;
1346 }
1347
1348 if (put_user(connector->property_values[i],
1349 prop_values + copied)) {
1350 ret = -EFAULT;
1351 goto out;
1352 }
1353 copied++;
1354 }
1355 }
1356 }
1357 out_resp->count_props = props_count;
1358
1359 if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
1360 copied = 0;
1361 encoder_ptr = (uint32_t *)(unsigned long)(out_resp->encoders_ptr);
1362 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1363 if (connector->encoder_ids[i] != 0) {
1364 if (put_user(connector->encoder_ids[i],
1365 encoder_ptr + copied)) {
1366 ret = -EFAULT;
1367 goto out;
1368 }
1369 copied++;
1370 }
1371 }
1372 }
1373 out_resp->count_encoders = encoders_count;
1374
1375 out:
1376 mutex_unlock(&dev->mode_config.mutex);
1377 return ret;
1378 }
1379
1380 int drm_mode_getencoder(struct drm_device *dev, void *data,
1381 struct drm_file *file_priv)
1382 {
1383 struct drm_mode_get_encoder *enc_resp = data;
1384 struct drm_mode_object *obj;
1385 struct drm_encoder *encoder;
1386 int ret = 0;
1387
1388 mutex_lock(&dev->mode_config.mutex);
1389 obj = drm_mode_object_find(dev, enc_resp->encoder_id,
1390 DRM_MODE_OBJECT_ENCODER);
1391 if (!obj) {
1392 ret = -EINVAL;
1393 goto out;
1394 }
1395 encoder = obj_to_encoder(obj);
1396
1397 if (encoder->crtc)
1398 enc_resp->crtc_id = encoder->crtc->base.id;
1399 else
1400 enc_resp->crtc_id = 0;
1401 enc_resp->encoder_type = encoder->encoder_type;
1402 enc_resp->encoder_id = encoder->base.id;
1403 enc_resp->possible_crtcs = encoder->possible_crtcs;
1404 enc_resp->possible_clones = encoder->possible_clones;
1405
1406 out:
1407 mutex_unlock(&dev->mode_config.mutex);
1408 return ret;
1409 }
1410
1411 int drm_mode_setcrtc(struct drm_device *dev, void *data,
1412 struct drm_file *file_priv)
1413 {
1414 struct drm_mode_config *config = &dev->mode_config;
1415 struct drm_mode_crtc *crtc_req = data;
1416 struct drm_mode_object *obj;
1417 struct drm_crtc *crtc, *crtcfb;
1418 struct drm_connector **connector_set = NULL, *connector;
1419 struct drm_framebuffer *fb = NULL;
1420 struct drm_display_mode *mode = NULL;
1421 struct drm_mode_set set;
1422 uint32_t __user *set_connectors_ptr;
1423 int ret = 0;
1424 int i;
1425
1426 mutex_lock(&dev->mode_config.mutex);
1427 obj = drm_mode_object_find(dev, crtc_req->crtc_id,
1428 DRM_MODE_OBJECT_CRTC);
1429 if (!obj) {
1430 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
1431 ret = -EINVAL;
1432 goto out;
1433 }
1434 crtc = obj_to_crtc(obj);
1435 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
1436
1437 if (crtc_req->mode_valid) {
1438 /* If we have a mode we need a framebuffer. */
1439 /* If we pass -1, set the mode with the currently bound fb */
1440 if (crtc_req->fb_id == -1) {
1441 list_for_each_entry(crtcfb,
1442 &dev->mode_config.crtc_list, head) {
1443 if (crtcfb == crtc) {
1444 DRM_DEBUG_KMS("Using current fb for "
1445 "setmode\n");
1446 fb = crtc->fb;
1447 }
1448 }
1449 } else {
1450 obj = drm_mode_object_find(dev, crtc_req->fb_id,
1451 DRM_MODE_OBJECT_FB);
1452 if (!obj) {
1453 DRM_DEBUG_KMS("Unknown FB ID%d\n",
1454 crtc_req->fb_id);
1455 ret = -EINVAL;
1456 goto out;
1457 }
1458 fb = obj_to_fb(obj);
1459 }
1460
1461 mode = drm_mode_create(dev);
1462 drm_crtc_convert_umode(mode, &crtc_req->mode);
1463 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
1464 }
1465
1466 if (crtc_req->count_connectors == 0 && mode) {
1467 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
1468 ret = -EINVAL;
1469 goto out;
1470 }
1471
1472 if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
1473 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
1474 crtc_req->count_connectors);
1475 ret = -EINVAL;
1476 goto out;
1477 }
1478
1479 if (crtc_req->count_connectors > 0) {
1480 u32 out_id;
1481
1482 /* Avoid unbounded kernel memory allocation */
1483 if (crtc_req->count_connectors > config->num_connector) {
1484 ret = -EINVAL;
1485 goto out;
1486 }
1487
1488 connector_set = kmalloc(crtc_req->count_connectors *
1489 sizeof(struct drm_connector *),
1490 GFP_KERNEL);
1491 if (!connector_set) {
1492 ret = -ENOMEM;
1493 goto out;
1494 }
1495
1496 for (i = 0; i < crtc_req->count_connectors; i++) {
1497 set_connectors_ptr = (uint32_t *)(unsigned long)crtc_req->set_connectors_ptr;
1498 if (get_user(out_id, &set_connectors_ptr[i])) {
1499 ret = -EFAULT;
1500 goto out;
1501 }
1502
1503 obj = drm_mode_object_find(dev, out_id,
1504 DRM_MODE_OBJECT_CONNECTOR);
1505 if (!obj) {
1506 DRM_DEBUG_KMS("Connector id %d unknown\n",
1507 out_id);
1508 ret = -EINVAL;
1509 goto out;
1510 }
1511 connector = obj_to_connector(obj);
1512 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
1513 connector->base.id,
1514 drm_get_connector_name(connector));
1515
1516 connector_set[i] = connector;
1517 }
1518 }
1519
1520 set.crtc = crtc;
1521 set.x = crtc_req->x;
1522 set.y = crtc_req->y;
1523 set.mode = mode;
1524 set.connectors = connector_set;
1525 set.num_connectors = crtc_req->count_connectors;
1526 set.fb = fb;
1527 ret = crtc->funcs->set_config(&set);
1528
1529 out:
1530 kfree(connector_set);
1531 mutex_unlock(&dev->mode_config.mutex);
1532 return ret;
1533 }
1534
1535 int drm_mode_cursor_ioctl(struct drm_device *dev,
1536 void *data, struct drm_file *file_priv)
1537 {
1538 struct drm_mode_cursor *req = data;
1539 struct drm_mode_object *obj;
1540 struct drm_crtc *crtc;
1541 int ret = 0;
1542
1543 if (!req->flags) {
1544 DRM_ERROR("no operation set\n");
1545 return -EINVAL;
1546 }
1547
1548 mutex_lock(&dev->mode_config.mutex);
1549 obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
1550 if (!obj) {
1551 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
1552 ret = -EINVAL;
1553 goto out;
1554 }
1555 crtc = obj_to_crtc(obj);
1556
1557 if (req->flags & DRM_MODE_CURSOR_BO) {
1558 if (!crtc->funcs->cursor_set) {
1559 DRM_ERROR("crtc does not support cursor\n");
1560 ret = -ENXIO;
1561 goto out;
1562 }
1563 /* Turns off the cursor if handle is 0 */
1564 ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
1565 req->width, req->height);
1566 }
1567
1568 if (req->flags & DRM_MODE_CURSOR_MOVE) {
1569 if (crtc->funcs->cursor_move) {
1570 ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
1571 } else {
1572 DRM_ERROR("crtc does not support cursor\n");
1573 ret = -EFAULT;
1574 goto out;
1575 }
1576 }
1577 out:
1578 mutex_unlock(&dev->mode_config.mutex);
1579 return ret;
1580 }
1581
1582 /**
1583 * drm_mode_addfb - add an FB to the graphics configuration
1584 * @inode: inode from the ioctl
1585 * @filp: file * from the ioctl
1586 * @cmd: cmd from ioctl
1587 * @arg: arg from ioctl
1588 *
1589 * LOCKING:
1590 * Takes mode config lock.
1591 *
1592 * Add a new FB to the specified CRTC, given a user request.
1593 *
1594 * Called by the user via ioctl.
1595 *
1596 * RETURNS:
1597 * Zero on success, errno on failure.
1598 */
1599 int drm_mode_addfb(struct drm_device *dev,
1600 void *data, struct drm_file *file_priv)
1601 {
1602 struct drm_mode_fb_cmd *r = data;
1603 struct drm_mode_config *config = &dev->mode_config;
1604 struct drm_framebuffer *fb;
1605 int ret = 0;
1606
1607 if ((config->min_width > r->width) || (r->width > config->max_width)) {
1608 DRM_ERROR("mode new framebuffer width not within limits\n");
1609 return -EINVAL;
1610 }
1611 if ((config->min_height > r->height) || (r->height > config->max_height)) {
1612 DRM_ERROR("mode new framebuffer height not within limits\n");
1613 return -EINVAL;
1614 }
1615
1616 mutex_lock(&dev->mode_config.mutex);
1617
1618 /* TODO check buffer is sufficently large */
1619 /* TODO setup destructor callback */
1620
1621 fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
1622 if (IS_ERR(fb)) {
1623 DRM_ERROR("could not create framebuffer\n");
1624 ret = PTR_ERR(fb);
1625 goto out;
1626 }
1627
1628 r->fb_id = fb->base.id;
1629 list_add(&fb->filp_head, &file_priv->fbs);
1630 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
1631
1632 out:
1633 mutex_unlock(&dev->mode_config.mutex);
1634 return ret;
1635 }
1636
1637 /**
1638 * drm_mode_rmfb - remove an FB from the configuration
1639 * @inode: inode from the ioctl
1640 * @filp: file * from the ioctl
1641 * @cmd: cmd from ioctl
1642 * @arg: arg from ioctl
1643 *
1644 * LOCKING:
1645 * Takes mode config lock.
1646 *
1647 * Remove the FB specified by the user.
1648 *
1649 * Called by the user via ioctl.
1650 *
1651 * RETURNS:
1652 * Zero on success, errno on failure.
1653 */
1654 int drm_mode_rmfb(struct drm_device *dev,
1655 void *data, struct drm_file *file_priv)
1656 {
1657 struct drm_mode_object *obj;
1658 struct drm_framebuffer *fb = NULL;
1659 struct drm_framebuffer *fbl = NULL;
1660 uint32_t *id = data;
1661 int ret = 0;
1662 int found = 0;
1663
1664 mutex_lock(&dev->mode_config.mutex);
1665 obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB);
1666 /* TODO check that we realy get a framebuffer back. */
1667 if (!obj) {
1668 DRM_ERROR("mode invalid framebuffer id\n");
1669 ret = -EINVAL;
1670 goto out;
1671 }
1672 fb = obj_to_fb(obj);
1673
1674 list_for_each_entry(fbl, &file_priv->fbs, filp_head)
1675 if (fb == fbl)
1676 found = 1;
1677
1678 if (!found) {
1679 DRM_ERROR("tried to remove a fb that we didn't own\n");
1680 ret = -EINVAL;
1681 goto out;
1682 }
1683
1684 /* TODO release all crtc connected to the framebuffer */
1685 /* TODO unhock the destructor from the buffer object */
1686
1687 list_del(&fb->filp_head);
1688 fb->funcs->destroy(fb);
1689
1690 out:
1691 mutex_unlock(&dev->mode_config.mutex);
1692 return ret;
1693 }
1694
1695 int drm_mode_getfb(struct drm_device *dev,
1696 void *data, struct drm_file *file_priv)
1697 {
1698 struct drm_mode_fb_cmd *r = data;
1699 struct drm_mode_object *obj;
1700 struct drm_framebuffer *fb;
1701 int ret = 0;
1702
1703 mutex_lock(&dev->mode_config.mutex);
1704 obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
1705 if (!obj) {
1706 DRM_ERROR("invalid framebuffer id\n");
1707 ret = -EINVAL;
1708 goto out;
1709 }
1710 fb = obj_to_fb(obj);
1711
1712 r->height = fb->height;
1713 r->width = fb->width;
1714 r->depth = fb->depth;
1715 r->bpp = fb->bits_per_pixel;
1716 r->pitch = fb->pitch;
1717 fb->funcs->create_handle(fb, file_priv, &r->handle);
1718
1719 out:
1720 mutex_unlock(&dev->mode_config.mutex);
1721 return ret;
1722 }
1723
1724 int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
1725 void *data, struct drm_file *file_priv)
1726 {
1727 struct drm_clip_rect __user *clips_ptr;
1728 struct drm_clip_rect *clips = NULL;
1729 struct drm_mode_fb_dirty_cmd *r = data;
1730 struct drm_mode_object *obj;
1731 struct drm_framebuffer *fb;
1732 unsigned flags;
1733 int num_clips;
1734 int ret = 0;
1735
1736 mutex_lock(&dev->mode_config.mutex);
1737 obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
1738 if (!obj) {
1739 DRM_ERROR("invalid framebuffer id\n");
1740 ret = -EINVAL;
1741 goto out_err1;
1742 }
1743 fb = obj_to_fb(obj);
1744
1745 num_clips = r->num_clips;
1746 clips_ptr = (struct drm_clip_rect *)(unsigned long)r->clips_ptr;
1747
1748 if (!num_clips != !clips_ptr) {
1749 ret = -EINVAL;
1750 goto out_err1;
1751 }
1752
1753 flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
1754
1755 /* If userspace annotates copy, clips must come in pairs */
1756 if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
1757 ret = -EINVAL;
1758 goto out_err1;
1759 }
1760
1761 if (num_clips && clips_ptr) {
1762 clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
1763 if (!clips) {
1764 ret = -ENOMEM;
1765 goto out_err1;
1766 }
1767
1768 ret = copy_from_user(clips, clips_ptr,
1769 num_clips * sizeof(*clips));
1770 if (ret) {
1771 ret = -EFAULT;
1772 goto out_err2;
1773 }
1774 }
1775
1776 if (fb->funcs->dirty) {
1777 ret = fb->funcs->dirty(fb, flags, r->color, clips, num_clips);
1778 } else {
1779 ret = -ENOSYS;
1780 goto out_err2;
1781 }
1782
1783 out_err2:
1784 kfree(clips);
1785 out_err1:
1786 mutex_unlock(&dev->mode_config.mutex);
1787 return ret;
1788 }
1789
1790
1791 /**
1792 * drm_fb_release - remove and free the FBs on this file
1793 * @filp: file * from the ioctl
1794 *
1795 * LOCKING:
1796 * Takes mode config lock.
1797 *
1798 * Destroy all the FBs associated with @filp.
1799 *
1800 * Called by the user via ioctl.
1801 *
1802 * RETURNS:
1803 * Zero on success, errno on failure.
1804 */
1805 void drm_fb_release(struct drm_file *priv)
1806 {
1807 struct drm_device *dev = priv->minor->dev;
1808 struct drm_framebuffer *fb, *tfb;
1809
1810 mutex_lock(&dev->mode_config.mutex);
1811 list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
1812 list_del(&fb->filp_head);
1813 fb->funcs->destroy(fb);
1814 }
1815 mutex_unlock(&dev->mode_config.mutex);
1816 }
1817
1818 /**
1819 * drm_mode_attachmode - add a mode to the user mode list
1820 * @dev: DRM device
1821 * @connector: connector to add the mode to
1822 * @mode: mode to add
1823 *
1824 * Add @mode to @connector's user mode list.
1825 */
1826 static int drm_mode_attachmode(struct drm_device *dev,
1827 struct drm_connector *connector,
1828 struct drm_display_mode *mode)
1829 {
1830 int ret = 0;
1831
1832 list_add_tail(&mode->head, &connector->user_modes);
1833 return ret;
1834 }
1835
1836 int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc,
1837 struct drm_display_mode *mode)
1838 {
1839 struct drm_connector *connector;
1840 int ret = 0;
1841 struct drm_display_mode *dup_mode;
1842 int need_dup = 0;
1843 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1844 if (!connector->encoder)
1845 break;
1846 if (connector->encoder->crtc == crtc) {
1847 if (need_dup)
1848 dup_mode = drm_mode_duplicate(dev, mode);
1849 else
1850 dup_mode = mode;
1851 ret = drm_mode_attachmode(dev, connector, dup_mode);
1852 if (ret)
1853 return ret;
1854 need_dup = 1;
1855 }
1856 }
1857 return 0;
1858 }
1859 EXPORT_SYMBOL(drm_mode_attachmode_crtc);
1860
1861 static int drm_mode_detachmode(struct drm_device *dev,
1862 struct drm_connector *connector,
1863 struct drm_display_mode *mode)
1864 {
1865 int found = 0;
1866 int ret = 0;
1867 struct drm_display_mode *match_mode, *t;
1868
1869 list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) {
1870 if (drm_mode_equal(match_mode, mode)) {
1871 list_del(&match_mode->head);
1872 drm_mode_destroy(dev, match_mode);
1873 found = 1;
1874 break;
1875 }
1876 }
1877
1878 if (!found)
1879 ret = -EINVAL;
1880
1881 return ret;
1882 }
1883
1884 int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode)
1885 {
1886 struct drm_connector *connector;
1887
1888 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1889 drm_mode_detachmode(dev, connector, mode);
1890 }
1891 return 0;
1892 }
1893 EXPORT_SYMBOL(drm_mode_detachmode_crtc);
1894
1895 /**
1896 * drm_fb_attachmode - Attach a user mode to an connector
1897 * @inode: inode from the ioctl
1898 * @filp: file * from the ioctl
1899 * @cmd: cmd from ioctl
1900 * @arg: arg from ioctl
1901 *
1902 * This attaches a user specified mode to an connector.
1903 * Called by the user via ioctl.
1904 *
1905 * RETURNS:
1906 * Zero on success, errno on failure.
1907 */
1908 int drm_mode_attachmode_ioctl(struct drm_device *dev,
1909 void *data, struct drm_file *file_priv)
1910 {
1911 struct drm_mode_mode_cmd *mode_cmd = data;
1912 struct drm_connector *connector;
1913 struct drm_display_mode *mode;
1914 struct drm_mode_object *obj;
1915 struct drm_mode_modeinfo *umode = &mode_cmd->mode;
1916 int ret = 0;
1917
1918 mutex_lock(&dev->mode_config.mutex);
1919
1920 obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
1921 if (!obj) {
1922 ret = -EINVAL;
1923 goto out;
1924 }
1925 connector = obj_to_connector(obj);
1926
1927 mode = drm_mode_create(dev);
1928 if (!mode) {
1929 ret = -ENOMEM;
1930 goto out;
1931 }
1932
1933 drm_crtc_convert_umode(mode, umode);
1934
1935 ret = drm_mode_attachmode(dev, connector, mode);
1936 out:
1937 mutex_unlock(&dev->mode_config.mutex);
1938 return ret;
1939 }
1940
1941
1942 /**
1943 * drm_fb_detachmode - Detach a user specified mode from an connector
1944 * @inode: inode from the ioctl
1945 * @filp: file * from the ioctl
1946 * @cmd: cmd from ioctl
1947 * @arg: arg from ioctl
1948 *
1949 * Called by the user via ioctl.
1950 *
1951 * RETURNS:
1952 * Zero on success, errno on failure.
1953 */
1954 int drm_mode_detachmode_ioctl(struct drm_device *dev,
1955 void *data, struct drm_file *file_priv)
1956 {
1957 struct drm_mode_object *obj;
1958 struct drm_mode_mode_cmd *mode_cmd = data;
1959 struct drm_connector *connector;
1960 struct drm_display_mode mode;
1961 struct drm_mode_modeinfo *umode = &mode_cmd->mode;
1962 int ret = 0;
1963
1964 mutex_lock(&dev->mode_config.mutex);
1965
1966 obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
1967 if (!obj) {
1968 ret = -EINVAL;
1969 goto out;
1970 }
1971 connector = obj_to_connector(obj);
1972
1973 drm_crtc_convert_umode(&mode, umode);
1974 ret = drm_mode_detachmode(dev, connector, &mode);
1975 out:
1976 mutex_unlock(&dev->mode_config.mutex);
1977 return ret;
1978 }
1979
1980 struct drm_property *drm_property_create(struct drm_device *dev, int flags,
1981 const char *name, int num_values)
1982 {
1983 struct drm_property *property = NULL;
1984
1985 property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
1986 if (!property)
1987 return NULL;
1988
1989 if (num_values) {
1990 property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
1991 if (!property->values)
1992 goto fail;
1993 }
1994
1995 drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
1996 property->flags = flags;
1997 property->num_values = num_values;
1998 INIT_LIST_HEAD(&property->enum_blob_list);
1999
2000 if (name)
2001 strncpy(property->name, name, DRM_PROP_NAME_LEN);
2002
2003 list_add_tail(&property->head, &dev->mode_config.property_list);
2004 return property;
2005 fail:
2006 kfree(property);
2007 return NULL;
2008 }
2009 EXPORT_SYMBOL(drm_property_create);
2010
2011 int drm_property_add_enum(struct drm_property *property, int index,
2012 uint64_t value, const char *name)
2013 {
2014 struct drm_property_enum *prop_enum;
2015
2016 if (!(property->flags & DRM_MODE_PROP_ENUM))
2017 return -EINVAL;
2018
2019 if (!list_empty(&property->enum_blob_list)) {
2020 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2021 if (prop_enum->value == value) {
2022 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2023 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2024 return 0;
2025 }
2026 }
2027 }
2028
2029 prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
2030 if (!prop_enum)
2031 return -ENOMEM;
2032
2033 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2034 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2035 prop_enum->value = value;
2036
2037 property->values[index] = value;
2038 list_add_tail(&prop_enum->head, &property->enum_blob_list);
2039 return 0;
2040 }
2041 EXPORT_SYMBOL(drm_property_add_enum);
2042
2043 void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
2044 {
2045 struct drm_property_enum *prop_enum, *pt;
2046
2047 list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
2048 list_del(&prop_enum->head);
2049 kfree(prop_enum);
2050 }
2051
2052 if (property->num_values)
2053 kfree(property->values);
2054 drm_mode_object_put(dev, &property->base);
2055 list_del(&property->head);
2056 kfree(property);
2057 }
2058 EXPORT_SYMBOL(drm_property_destroy);
2059
2060 int drm_connector_attach_property(struct drm_connector *connector,
2061 struct drm_property *property, uint64_t init_val)
2062 {
2063 int i;
2064
2065 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2066 if (connector->property_ids[i] == 0) {
2067 connector->property_ids[i] = property->base.id;
2068 connector->property_values[i] = init_val;
2069 break;
2070 }
2071 }
2072
2073 if (i == DRM_CONNECTOR_MAX_PROPERTY)
2074 return -EINVAL;
2075 return 0;
2076 }
2077 EXPORT_SYMBOL(drm_connector_attach_property);
2078
2079 int drm_connector_property_set_value(struct drm_connector *connector,
2080 struct drm_property *property, uint64_t value)
2081 {
2082 int i;
2083
2084 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2085 if (connector->property_ids[i] == property->base.id) {
2086 connector->property_values[i] = value;
2087 break;
2088 }
2089 }
2090
2091 if (i == DRM_CONNECTOR_MAX_PROPERTY)
2092 return -EINVAL;
2093 return 0;
2094 }
2095 EXPORT_SYMBOL(drm_connector_property_set_value);
2096
2097 int drm_connector_property_get_value(struct drm_connector *connector,
2098 struct drm_property *property, uint64_t *val)
2099 {
2100 int i;
2101
2102 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2103 if (connector->property_ids[i] == property->base.id) {
2104 *val = connector->property_values[i];
2105 break;
2106 }
2107 }
2108
2109 if (i == DRM_CONNECTOR_MAX_PROPERTY)
2110 return -EINVAL;
2111 return 0;
2112 }
2113 EXPORT_SYMBOL(drm_connector_property_get_value);
2114
2115 int drm_mode_getproperty_ioctl(struct drm_device *dev,
2116 void *data, struct drm_file *file_priv)
2117 {
2118 struct drm_mode_object *obj;
2119 struct drm_mode_get_property *out_resp = data;
2120 struct drm_property *property;
2121 int enum_count = 0;
2122 int blob_count = 0;
2123 int value_count = 0;
2124 int ret = 0, i;
2125 int copied;
2126 struct drm_property_enum *prop_enum;
2127 struct drm_mode_property_enum __user *enum_ptr;
2128 struct drm_property_blob *prop_blob;
2129 uint32_t *blob_id_ptr;
2130 uint64_t __user *values_ptr;
2131 uint32_t __user *blob_length_ptr;
2132
2133 mutex_lock(&dev->mode_config.mutex);
2134 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2135 if (!obj) {
2136 ret = -EINVAL;
2137 goto done;
2138 }
2139 property = obj_to_property(obj);
2140
2141 if (property->flags & DRM_MODE_PROP_ENUM) {
2142 list_for_each_entry(prop_enum, &property->enum_blob_list, head)
2143 enum_count++;
2144 } else if (property->flags & DRM_MODE_PROP_BLOB) {
2145 list_for_each_entry(prop_blob, &property->enum_blob_list, head)
2146 blob_count++;
2147 }
2148
2149 value_count = property->num_values;
2150
2151 strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
2152 out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
2153 out_resp->flags = property->flags;
2154
2155 if ((out_resp->count_values >= value_count) && value_count) {
2156 values_ptr = (uint64_t *)(unsigned long)out_resp->values_ptr;
2157 for (i = 0; i < value_count; i++) {
2158 if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
2159 ret = -EFAULT;
2160 goto done;
2161 }
2162 }
2163 }
2164 out_resp->count_values = value_count;
2165
2166 if (property->flags & DRM_MODE_PROP_ENUM) {
2167 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
2168 copied = 0;
2169 enum_ptr = (struct drm_mode_property_enum *)(unsigned long)out_resp->enum_blob_ptr;
2170 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2171
2172 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
2173 ret = -EFAULT;
2174 goto done;
2175 }
2176
2177 if (copy_to_user(&enum_ptr[copied].name,
2178 &prop_enum->name, DRM_PROP_NAME_LEN)) {
2179 ret = -EFAULT;
2180 goto done;
2181 }
2182 copied++;
2183 }
2184 }
2185 out_resp->count_enum_blobs = enum_count;
2186 }
2187
2188 if (property->flags & DRM_MODE_PROP_BLOB) {
2189 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
2190 copied = 0;
2191 blob_id_ptr = (uint32_t *)(unsigned long)out_resp->enum_blob_ptr;
2192 blob_length_ptr = (uint32_t *)(unsigned long)out_resp->values_ptr;
2193
2194 list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
2195 if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
2196 ret = -EFAULT;
2197 goto done;
2198 }
2199
2200 if (put_user(prop_blob->length, blob_length_ptr + copied)) {
2201 ret = -EFAULT;
2202 goto done;
2203 }
2204
2205 copied++;
2206 }
2207 }
2208 out_resp->count_enum_blobs = blob_count;
2209 }
2210 done:
2211 mutex_unlock(&dev->mode_config.mutex);
2212 return ret;
2213 }
2214
2215 static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
2216 void *data)
2217 {
2218 struct drm_property_blob *blob;
2219
2220 if (!length || !data)
2221 return NULL;
2222
2223 blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
2224 if (!blob)
2225 return NULL;
2226
2227 blob->data = (void *)((char *)blob + sizeof(struct drm_property_blob));
2228 blob->length = length;
2229
2230 memcpy(blob->data, data, length);
2231
2232 drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
2233
2234 list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
2235 return blob;
2236 }
2237
2238 static void drm_property_destroy_blob(struct drm_device *dev,
2239 struct drm_property_blob *blob)
2240 {
2241 drm_mode_object_put(dev, &blob->base);
2242 list_del(&blob->head);
2243 kfree(blob);
2244 }
2245
2246 int drm_mode_getblob_ioctl(struct drm_device *dev,
2247 void *data, struct drm_file *file_priv)
2248 {
2249 struct drm_mode_object *obj;
2250 struct drm_mode_get_blob *out_resp = data;
2251 struct drm_property_blob *blob;
2252 int ret = 0;
2253 void *blob_ptr;
2254
2255 mutex_lock(&dev->mode_config.mutex);
2256 obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
2257 if (!obj) {
2258 ret = -EINVAL;
2259 goto done;
2260 }
2261 blob = obj_to_blob(obj);
2262
2263 if (out_resp->length == blob->length) {
2264 blob_ptr = (void *)(unsigned long)out_resp->data;
2265 if (copy_to_user(blob_ptr, blob->data, blob->length)){
2266 ret = -EFAULT;
2267 goto done;
2268 }
2269 }
2270 out_resp->length = blob->length;
2271
2272 done:
2273 mutex_unlock(&dev->mode_config.mutex);
2274 return ret;
2275 }
2276
2277 int drm_mode_connector_update_edid_property(struct drm_connector *connector,
2278 struct edid *edid)
2279 {
2280 struct drm_device *dev = connector->dev;
2281 int ret = 0, size;
2282
2283 if (connector->edid_blob_ptr)
2284 drm_property_destroy_blob(dev, connector->edid_blob_ptr);
2285
2286 /* Delete edid, when there is none. */
2287 if (!edid) {
2288 connector->edid_blob_ptr = NULL;
2289 ret = drm_connector_property_set_value(connector, dev->mode_config.edid_property, 0);
2290 return ret;
2291 }
2292
2293 size = EDID_LENGTH * (1 + edid->extensions);
2294 connector->edid_blob_ptr = drm_property_create_blob(connector->dev,
2295 size, edid);
2296
2297 ret = drm_connector_property_set_value(connector,
2298 dev->mode_config.edid_property,
2299 connector->edid_blob_ptr->base.id);
2300
2301 return ret;
2302 }
2303 EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
2304
2305 int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
2306 void *data, struct drm_file *file_priv)
2307 {
2308 struct drm_mode_connector_set_property *out_resp = data;
2309 struct drm_mode_object *obj;
2310 struct drm_property *property;
2311 struct drm_connector *connector;
2312 int ret = -EINVAL;
2313 int i;
2314
2315 mutex_lock(&dev->mode_config.mutex);
2316
2317 obj = drm_mode_object_find(dev, out_resp->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2318 if (!obj) {
2319 goto out;
2320 }
2321 connector = obj_to_connector(obj);
2322
2323 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2324 if (connector->property_ids[i] == out_resp->prop_id)
2325 break;
2326 }
2327
2328 if (i == DRM_CONNECTOR_MAX_PROPERTY) {
2329 goto out;
2330 }
2331
2332 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2333 if (!obj) {
2334 goto out;
2335 }
2336 property = obj_to_property(obj);
2337
2338 if (property->flags & DRM_MODE_PROP_IMMUTABLE)
2339 goto out;
2340
2341 if (property->flags & DRM_MODE_PROP_RANGE) {
2342 if (out_resp->value < property->values[0])
2343 goto out;
2344
2345 if (out_resp->value > property->values[1])
2346 goto out;
2347 } else {
2348 int found = 0;
2349 for (i = 0; i < property->num_values; i++) {
2350 if (property->values[i] == out_resp->value) {
2351 found = 1;
2352 break;
2353 }
2354 }
2355 if (!found) {
2356 goto out;
2357 }
2358 }
2359
2360 /* Do DPMS ourselves */
2361 if (property == connector->dev->mode_config.dpms_property) {
2362 if (connector->funcs->dpms)
2363 (*connector->funcs->dpms)(connector, (int) out_resp->value);
2364 ret = 0;
2365 } else if (connector->funcs->set_property)
2366 ret = connector->funcs->set_property(connector, property, out_resp->value);
2367
2368 /* store the property value if successful */
2369 if (!ret)
2370 drm_connector_property_set_value(connector, property, out_resp->value);
2371 out:
2372 mutex_unlock(&dev->mode_config.mutex);
2373 return ret;
2374 }
2375
2376 int drm_mode_connector_attach_encoder(struct drm_connector *connector,
2377 struct drm_encoder *encoder)
2378 {
2379 int i;
2380
2381 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
2382 if (connector->encoder_ids[i] == 0) {
2383 connector->encoder_ids[i] = encoder->base.id;
2384 return 0;
2385 }
2386 }
2387 return -ENOMEM;
2388 }
2389 EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
2390
2391 void drm_mode_connector_detach_encoder(struct drm_connector *connector,
2392 struct drm_encoder *encoder)
2393 {
2394 int i;
2395 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
2396 if (connector->encoder_ids[i] == encoder->base.id) {
2397 connector->encoder_ids[i] = 0;
2398 if (connector->encoder == encoder)
2399 connector->encoder = NULL;
2400 break;
2401 }
2402 }
2403 }
2404 EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
2405
2406 bool drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
2407 int gamma_size)
2408 {
2409 crtc->gamma_size = gamma_size;
2410
2411 crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
2412 if (!crtc->gamma_store) {
2413 crtc->gamma_size = 0;
2414 return false;
2415 }
2416
2417 return true;
2418 }
2419 EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
2420
2421 int drm_mode_gamma_set_ioctl(struct drm_device *dev,
2422 void *data, struct drm_file *file_priv)
2423 {
2424 struct drm_mode_crtc_lut *crtc_lut = data;
2425 struct drm_mode_object *obj;
2426 struct drm_crtc *crtc;
2427 void *r_base, *g_base, *b_base;
2428 int size;
2429 int ret = 0;
2430
2431 mutex_lock(&dev->mode_config.mutex);
2432 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
2433 if (!obj) {
2434 ret = -EINVAL;
2435 goto out;
2436 }
2437 crtc = obj_to_crtc(obj);
2438
2439 /* memcpy into gamma store */
2440 if (crtc_lut->gamma_size != crtc->gamma_size) {
2441 ret = -EINVAL;
2442 goto out;
2443 }
2444
2445 size = crtc_lut->gamma_size * (sizeof(uint16_t));
2446 r_base = crtc->gamma_store;
2447 if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
2448 ret = -EFAULT;
2449 goto out;
2450 }
2451
2452 g_base = r_base + size;
2453 if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
2454 ret = -EFAULT;
2455 goto out;
2456 }
2457
2458 b_base = g_base + size;
2459 if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
2460 ret = -EFAULT;
2461 goto out;
2462 }
2463
2464 crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
2465
2466 out:
2467 mutex_unlock(&dev->mode_config.mutex);
2468 return ret;
2469
2470 }
2471
2472 int drm_mode_gamma_get_ioctl(struct drm_device *dev,
2473 void *data, struct drm_file *file_priv)
2474 {
2475 struct drm_mode_crtc_lut *crtc_lut = data;
2476 struct drm_mode_object *obj;
2477 struct drm_crtc *crtc;
2478 void *r_base, *g_base, *b_base;
2479 int size;
2480 int ret = 0;
2481
2482 mutex_lock(&dev->mode_config.mutex);
2483 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
2484 if (!obj) {
2485 ret = -EINVAL;
2486 goto out;
2487 }
2488 crtc = obj_to_crtc(obj);
2489
2490 /* memcpy into gamma store */
2491 if (crtc_lut->gamma_size != crtc->gamma_size) {
2492 ret = -EINVAL;
2493 goto out;
2494 }
2495
2496 size = crtc_lut->gamma_size * (sizeof(uint16_t));
2497 r_base = crtc->gamma_store;
2498 if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
2499 ret = -EFAULT;
2500 goto out;
2501 }
2502
2503 g_base = r_base + size;
2504 if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
2505 ret = -EFAULT;
2506 goto out;
2507 }
2508
2509 b_base = g_base + size;
2510 if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
2511 ret = -EFAULT;
2512 goto out;
2513 }
2514 out:
2515 mutex_unlock(&dev->mode_config.mutex);
2516 return ret;
2517 }
2518
2519 int drm_mode_page_flip_ioctl(struct drm_device *dev,
2520 void *data, struct drm_file *file_priv)
2521 {
2522 struct drm_mode_crtc_page_flip *page_flip = data;
2523 struct drm_mode_object *obj;
2524 struct drm_crtc *crtc;
2525 struct drm_framebuffer *fb;
2526 struct drm_pending_vblank_event *e = NULL;
2527 unsigned long flags;
2528 int ret = -EINVAL;
2529
2530 if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
2531 page_flip->reserved != 0)
2532 return -EINVAL;
2533
2534 mutex_lock(&dev->mode_config.mutex);
2535 obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC);
2536 if (!obj)
2537 goto out;
2538 crtc = obj_to_crtc(obj);
2539
2540 if (crtc->fb == NULL) {
2541 /* The framebuffer is currently unbound, presumably
2542 * due to a hotplug event, that userspace has not
2543 * yet discovered.
2544 */
2545 ret = -EBUSY;
2546 goto out;
2547 }
2548
2549 if (crtc->funcs->page_flip == NULL)
2550 goto out;
2551
2552 obj = drm_mode_object_find(dev, page_flip->fb_id, DRM_MODE_OBJECT_FB);
2553 if (!obj)
2554 goto out;
2555 fb = obj_to_fb(obj);
2556
2557 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
2558 ret = -ENOMEM;
2559 spin_lock_irqsave(&dev->event_lock, flags);
2560 if (file_priv->event_space < sizeof e->event) {
2561 spin_unlock_irqrestore(&dev->event_lock, flags);
2562 goto out;
2563 }
2564 file_priv->event_space -= sizeof e->event;
2565 spin_unlock_irqrestore(&dev->event_lock, flags);
2566
2567 e = kzalloc(sizeof *e, GFP_KERNEL);
2568 if (e == NULL) {
2569 spin_lock_irqsave(&dev->event_lock, flags);
2570 file_priv->event_space += sizeof e->event;
2571 spin_unlock_irqrestore(&dev->event_lock, flags);
2572 goto out;
2573 }
2574
2575 e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
2576 e->event.base.length = sizeof e->event;
2577 e->event.user_data = page_flip->user_data;
2578 e->base.event = &e->event.base;
2579 e->base.file_priv = file_priv;
2580 e->base.destroy =
2581 (void (*) (struct drm_pending_event *)) kfree;
2582 }
2583
2584 ret = crtc->funcs->page_flip(crtc, fb, e);
2585 if (ret) {
2586 spin_lock_irqsave(&dev->event_lock, flags);
2587 file_priv->event_space += sizeof e->event;
2588 spin_unlock_irqrestore(&dev->event_lock, flags);
2589 kfree(e);
2590 }
2591
2592 out:
2593 mutex_unlock(&dev->mode_config.mutex);
2594 return ret;
2595 }
Tomato firmware and modifications.