?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...
[linux-2.6/linux-2.6-openrd.git] / drivers / gpu / drm / drm_crtc.c
blob5124401f266a168ea5202acfe24684ae9a339b1a
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_NONE, "None" },
72 { DRM_MODE_SCALE_FULLSCREEN, "Full" },
73 { DRM_MODE_SCALE_CENTER, "Center" },
74 { DRM_MODE_SCALE_ASPECT, "Full aspect" },
75 };
76
77 static struct drm_prop_enum_list drm_dithering_mode_enum_list[] =
78 {
79 { DRM_MODE_DITHERING_OFF, "Off" },
80 { DRM_MODE_DITHERING_ON, "On" },
81 };
82
83 /*
84 * Non-global properties, but "required" for certain connectors.
85 */
86 static struct drm_prop_enum_list drm_dvi_i_select_enum_list[] =
87 {
88 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
89 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
90 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
91 };
92
93 DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list)
94
95 static struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] =
96 {
97 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
98 { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */
99 { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */
100 };
101
102 DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name,
103 drm_dvi_i_subconnector_enum_list)
104
105 static struct drm_prop_enum_list drm_tv_select_enum_list[] =
106 {
107 { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
108 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
109 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
110 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
111 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
112 };
113
114 DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list)
115
116 static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] =
117 {
118 { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */
119 { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
120 { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */
121 { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
122 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */
123 };
124
125 DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
126 drm_tv_subconnector_enum_list)
127
128 static struct drm_prop_enum_list drm_dirty_info_enum_list[] = {
129 { DRM_MODE_DIRTY_OFF, "Off" },
130 { DRM_MODE_DIRTY_ON, "On" },
131 { DRM_MODE_DIRTY_ANNOTATE, "Annotate" },
132 };
133
134 DRM_ENUM_NAME_FN(drm_get_dirty_info_name,
135 drm_dirty_info_enum_list)
136
137 struct drm_conn_prop_enum_list {
138 int type;
139 char *name;
140 int count;
141 };
142
143 /*
144 * Connector and encoder types.
145 */
146 static struct drm_conn_prop_enum_list drm_connector_enum_list[] =
147 { { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 },
148 { DRM_MODE_CONNECTOR_VGA, "VGA", 0 },
149 { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 },
150 { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 },
151 { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 },
152 { DRM_MODE_CONNECTOR_Composite, "Composite", 0 },
153 { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 },
154 { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 },
155 { DRM_MODE_CONNECTOR_Component, "Component", 0 },
156 { DRM_MODE_CONNECTOR_9PinDIN, "9-pin DIN", 0 },
157 { DRM_MODE_CONNECTOR_DisplayPort, "DisplayPort", 0 },
158 { DRM_MODE_CONNECTOR_HDMIA, "HDMI Type A", 0 },
159 { DRM_MODE_CONNECTOR_HDMIB, "HDMI Type B", 0 },
160 { DRM_MODE_CONNECTOR_TV, "TV", 0 },
161 };
162
163 static struct drm_prop_enum_list drm_encoder_enum_list[] =
164 { { DRM_MODE_ENCODER_NONE, "None" },
165 { DRM_MODE_ENCODER_DAC, "DAC" },
166 { DRM_MODE_ENCODER_TMDS, "TMDS" },
167 { DRM_MODE_ENCODER_LVDS, "LVDS" },
168 { DRM_MODE_ENCODER_TVDAC, "TV" },
169 };
170
171 char *drm_get_encoder_name(struct drm_encoder *encoder)
172 {
173 static char buf[32];
174
175 snprintf(buf, 32, "%s-%d",
176 drm_encoder_enum_list[encoder->encoder_type].name,
177 encoder->base.id);
178 return buf;
179 }
180 EXPORT_SYMBOL(drm_get_encoder_name);
181
182 char *drm_get_connector_name(struct drm_connector *connector)
183 {
184 static char buf[32];
185
186 snprintf(buf, 32, "%s-%d",
187 drm_connector_enum_list[connector->connector_type].name,
188 connector->connector_type_id);
189 return buf;
190 }
191 EXPORT_SYMBOL(drm_get_connector_name);
192
193 char *drm_get_connector_status_name(enum drm_connector_status status)
194 {
195 if (status == connector_status_connected)
196 return "connected";
197 else if (status == connector_status_disconnected)
198 return "disconnected";
199 else
200 return "unknown";
201 }
202
203 /**
204 * drm_mode_object_get - allocate a new identifier
205 * @dev: DRM device
206 * @ptr: object pointer, used to generate unique ID
207 * @type: object type
208 *
209 * LOCKING:
210 *
211 * Create a unique identifier based on @ptr in @dev's identifier space. Used
212 * for tracking modes, CRTCs and connectors.
213 *
214 * RETURNS:
215 * New unique (relative to other objects in @dev) integer identifier for the
216 * object.
217 */
218 static int drm_mode_object_get(struct drm_device *dev,
219 struct drm_mode_object *obj, uint32_t obj_type)
220 {
221 int new_id = 0;
222 int ret;
223
224 again:
225 if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) {
226 DRM_ERROR("Ran out memory getting a mode number\n");
227 return -EINVAL;
228 }
229
230 mutex_lock(&dev->mode_config.idr_mutex);
231 ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id);
232 mutex_unlock(&dev->mode_config.idr_mutex);
233 if (ret == -EAGAIN)
234 goto again;
235
236 obj->id = new_id;
237 obj->type = obj_type;
238 return 0;
239 }
240
241 /**
242 * drm_mode_object_put - free an identifer
243 * @dev: DRM device
244 * @id: ID to free
245 *
246 * LOCKING:
247 * Caller must hold DRM mode_config lock.
248 *
249 * Free @id from @dev's unique identifier pool.
250 */
251 static void drm_mode_object_put(struct drm_device *dev,
252 struct drm_mode_object *object)
253 {
254 mutex_lock(&dev->mode_config.idr_mutex);
255 idr_remove(&dev->mode_config.crtc_idr, object->id);
256 mutex_unlock(&dev->mode_config.idr_mutex);
257 }
258
259 struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
260 uint32_t id, uint32_t type)
261 {
262 struct drm_mode_object *obj = NULL;
263
264 mutex_lock(&dev->mode_config.idr_mutex);
265 obj = idr_find(&dev->mode_config.crtc_idr, id);
266 if (!obj || (obj->type != type) || (obj->id != id))
267 obj = NULL;
268 mutex_unlock(&dev->mode_config.idr_mutex);
269
270 return obj;
271 }
272 EXPORT_SYMBOL(drm_mode_object_find);
273
274 /**
275 * drm_framebuffer_init - initialize a framebuffer
276 * @dev: DRM device
277 *
278 * LOCKING:
279 * Caller must hold mode config lock.
280 *
281 * Allocates an ID for the framebuffer's parent mode object, sets its mode
282 * functions & device file and adds it to the master fd list.
283 *
284 * RETURNS:
285 * Zero on success, error code on failure.
286 */
287 int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
288 const struct drm_framebuffer_funcs *funcs)
289 {
290 int ret;
291
292 ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
293 if (ret) {
294 return ret;
295 }
296
297 fb->dev = dev;
298 fb->funcs = funcs;
299 dev->mode_config.num_fb++;
300 list_add(&fb->head, &dev->mode_config.fb_list);
301
302 return 0;
303 }
304 EXPORT_SYMBOL(drm_framebuffer_init);
305
306 /**
307 * drm_framebuffer_cleanup - remove a framebuffer object
308 * @fb: framebuffer to remove
309 *
310 * LOCKING:
311 * Caller must hold mode config lock.
312 *
313 * Scans all the CRTCs in @dev's mode_config. If they're using @fb, removes
314 * it, setting it to NULL.
315 */
316 void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
317 {
318 struct drm_device *dev = fb->dev;
319 struct drm_crtc *crtc;
320 struct drm_mode_set set;
321 int ret;
322
323 /* remove from any CRTC */
324 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
325 if (crtc->fb == fb) {
326 /* should turn off the crtc */
327 memset(&set, 0, sizeof(struct drm_mode_set));
328 set.crtc = crtc;
329 set.fb = NULL;
330 ret = crtc->funcs->set_config(&set);
331 if (ret)
332 DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
333 }
334 }
335
336 drm_mode_object_put(dev, &fb->base);
337 list_del(&fb->head);
338 dev->mode_config.num_fb--;
339 }
340 EXPORT_SYMBOL(drm_framebuffer_cleanup);
341
342 /**
343 * drm_crtc_init - Initialise a new CRTC object
344 * @dev: DRM device
345 * @crtc: CRTC object to init
346 * @funcs: callbacks for the new CRTC
347 *
348 * LOCKING:
349 * Caller must hold mode config lock.
350 *
351 * Inits a new object created as base part of an driver crtc object.
352 */
353 void drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
354 const struct drm_crtc_funcs *funcs)
355 {
356 crtc->dev = dev;
357 crtc->funcs = funcs;
358
359 mutex_lock(&dev->mode_config.mutex);
360 drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
361
362 list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
363 dev->mode_config.num_crtc++;
364 mutex_unlock(&dev->mode_config.mutex);
365 }
366 EXPORT_SYMBOL(drm_crtc_init);
367
368 /**
369 * drm_crtc_cleanup - Cleans up the core crtc usage.
370 * @crtc: CRTC to cleanup
371 *
372 * LOCKING:
373 * Caller must hold mode config lock.
374 *
375 * Cleanup @crtc. Removes from drm modesetting space
376 * does NOT free object, caller does that.
377 */
378 void drm_crtc_cleanup(struct drm_crtc *crtc)
379 {
380 struct drm_device *dev = crtc->dev;
381
382 if (crtc->gamma_store) {
383 kfree(crtc->gamma_store);
384 crtc->gamma_store = NULL;
385 }
386
387 drm_mode_object_put(dev, &crtc->base);
388 list_del(&crtc->head);
389 dev->mode_config.num_crtc--;
390 }
391 EXPORT_SYMBOL(drm_crtc_cleanup);
392
393 /**
394 * drm_mode_probed_add - add a mode to a connector's probed mode list
395 * @connector: connector the new mode
396 * @mode: mode data
397 *
398 * LOCKING:
399 * Caller must hold mode config lock.
400 *
401 * Add @mode to @connector's mode list for later use.
402 */
403 void drm_mode_probed_add(struct drm_connector *connector,
404 struct drm_display_mode *mode)
405 {
406 list_add(&mode->head, &connector->probed_modes);
407 }
408 EXPORT_SYMBOL(drm_mode_probed_add);
409
410 /**
411 * drm_mode_remove - remove and free a mode
412 * @connector: connector list to modify
413 * @mode: mode to remove
414 *
415 * LOCKING:
416 * Caller must hold mode config lock.
417 *
418 * Remove @mode from @connector's mode list, then free it.
419 */
420 void drm_mode_remove(struct drm_connector *connector,
421 struct drm_display_mode *mode)
422 {
423 list_del(&mode->head);
424 kfree(mode);
425 }
426 EXPORT_SYMBOL(drm_mode_remove);
427
428 /**
429 * drm_connector_init - Init a preallocated connector
430 * @dev: DRM device
431 * @connector: the connector to init
432 * @funcs: callbacks for this connector
433 * @name: user visible name of the connector
434 *
435 * LOCKING:
436 * Caller must hold @dev's mode_config lock.
437 *
438 * Initialises a preallocated connector. Connectors should be
439 * subclassed as part of driver connector objects.
440 */
441 void drm_connector_init(struct drm_device *dev,
442 struct drm_connector *connector,
443 const struct drm_connector_funcs *funcs,
444 int connector_type)
445 {
446 mutex_lock(&dev->mode_config.mutex);
447
448 connector->dev = dev;
449 connector->funcs = funcs;
450 drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
451 connector->connector_type = connector_type;
452 connector->connector_type_id =
453 ++drm_connector_enum_list[connector_type].count; /* TODO */
454 INIT_LIST_HEAD(&connector->user_modes);
455 INIT_LIST_HEAD(&connector->probed_modes);
456 INIT_LIST_HEAD(&connector->modes);
457 connector->edid_blob_ptr = NULL;
458
459 list_add_tail(&connector->head, &dev->mode_config.connector_list);
460 dev->mode_config.num_connector++;
461
462 drm_connector_attach_property(connector,
463 dev->mode_config.edid_property, 0);
464
465 drm_connector_attach_property(connector,
466 dev->mode_config.dpms_property, 0);
467
468 mutex_unlock(&dev->mode_config.mutex);
469 }
470 EXPORT_SYMBOL(drm_connector_init);
471
472 /**
473 * drm_connector_cleanup - cleans up an initialised connector
474 * @connector: connector to cleanup
475 *
476 * LOCKING:
477 * Caller must hold @dev's mode_config lock.
478 *
479 * Cleans up the connector but doesn't free the object.
480 */
481 void drm_connector_cleanup(struct drm_connector *connector)
482 {
483 struct drm_device *dev = connector->dev;
484 struct drm_display_mode *mode, *t;
485
486 list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
487 drm_mode_remove(connector, mode);
488
489 list_for_each_entry_safe(mode, t, &connector->modes, head)
490 drm_mode_remove(connector, mode);
491
492 list_for_each_entry_safe(mode, t, &connector->user_modes, head)
493 drm_mode_remove(connector, mode);
494
495 kfree(connector->fb_helper_private);
496 mutex_lock(&dev->mode_config.mutex);
497 drm_mode_object_put(dev, &connector->base);
498 list_del(&connector->head);
499 mutex_unlock(&dev->mode_config.mutex);
500 }
501 EXPORT_SYMBOL(drm_connector_cleanup);
502
503 void drm_encoder_init(struct drm_device *dev,
504 struct drm_encoder *encoder,
505 const struct drm_encoder_funcs *funcs,
506 int encoder_type)
507 {
508 mutex_lock(&dev->mode_config.mutex);
509
510 encoder->dev = dev;
511
512 drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
513 encoder->encoder_type = encoder_type;
514 encoder->funcs = funcs;
515
516 list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
517 dev->mode_config.num_encoder++;
518
519 mutex_unlock(&dev->mode_config.mutex);
520 }
521 EXPORT_SYMBOL(drm_encoder_init);
522
523 void drm_encoder_cleanup(struct drm_encoder *encoder)
524 {
525 struct drm_device *dev = encoder->dev;
526 mutex_lock(&dev->mode_config.mutex);
527 drm_mode_object_put(dev, &encoder->base);
528 list_del(&encoder->head);
529 mutex_unlock(&dev->mode_config.mutex);
530 }
531 EXPORT_SYMBOL(drm_encoder_cleanup);
532
533 /**
534 * drm_mode_create - create a new display mode
535 * @dev: DRM device
536 *
537 * LOCKING:
538 * Caller must hold DRM mode_config lock.
539 *
540 * Create a new drm_display_mode, give it an ID, and return it.
541 *
542 * RETURNS:
543 * Pointer to new mode on success, NULL on error.
544 */
545 struct drm_display_mode *drm_mode_create(struct drm_device *dev)
546 {
547 struct drm_display_mode *nmode;
548
549 nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
550 if (!nmode)
551 return NULL;
552
553 drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE);
554 return nmode;
555 }
556 EXPORT_SYMBOL(drm_mode_create);
557
558 /**
559 * drm_mode_destroy - remove a mode
560 * @dev: DRM device
561 * @mode: mode to remove
562 *
563 * LOCKING:
564 * Caller must hold mode config lock.
565 *
566 * Free @mode's unique identifier, then free it.
567 */
568 void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
569 {
570 drm_mode_object_put(dev, &mode->base);
571
572 kfree(mode);
573 }
574 EXPORT_SYMBOL(drm_mode_destroy);
575
576 static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
577 {
578 struct drm_property *edid;
579 struct drm_property *dpms;
580 int i;
581
582 /*
583 * Standard properties (apply to all connectors)
584 */
585 edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
586 DRM_MODE_PROP_IMMUTABLE,
587 "EDID", 0);
588 dev->mode_config.edid_property = edid;
589
590 dpms = drm_property_create(dev, DRM_MODE_PROP_ENUM,
591 "DPMS", ARRAY_SIZE(drm_dpms_enum_list));
592 for (i = 0; i < ARRAY_SIZE(drm_dpms_enum_list); i++)
593 drm_property_add_enum(dpms, i, drm_dpms_enum_list[i].type,
594 drm_dpms_enum_list[i].name);
595 dev->mode_config.dpms_property = dpms;
596
597 return 0;
598 }
599
600 /**
601 * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
602 * @dev: DRM device
603 *
604 * Called by a driver the first time a DVI-I connector is made.
605 */
606 int drm_mode_create_dvi_i_properties(struct drm_device *dev)
607 {
608 struct drm_property *dvi_i_selector;
609 struct drm_property *dvi_i_subconnector;
610 int i;
611
612 if (dev->mode_config.dvi_i_select_subconnector_property)
613 return 0;
614
615 dvi_i_selector =
616 drm_property_create(dev, DRM_MODE_PROP_ENUM,
617 "select subconnector",
618 ARRAY_SIZE(drm_dvi_i_select_enum_list));
619 for (i = 0; i < ARRAY_SIZE(drm_dvi_i_select_enum_list); i++)
620 drm_property_add_enum(dvi_i_selector, i,
621 drm_dvi_i_select_enum_list[i].type,
622 drm_dvi_i_select_enum_list[i].name);
623 dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
624
625 dvi_i_subconnector =
626 drm_property_create(dev, DRM_MODE_PROP_ENUM |
627 DRM_MODE_PROP_IMMUTABLE,
628 "subconnector",
629 ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
630 for (i = 0; i < ARRAY_SIZE(drm_dvi_i_subconnector_enum_list); i++)
631 drm_property_add_enum(dvi_i_subconnector, i,
632 drm_dvi_i_subconnector_enum_list[i].type,
633 drm_dvi_i_subconnector_enum_list[i].name);
634 dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
635
636 return 0;
637 }
638 EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
639
640 /**
641 * drm_create_tv_properties - create TV specific connector properties
642 * @dev: DRM device
643 * @num_modes: number of different TV formats (modes) supported
644 * @modes: array of pointers to strings containing name of each format
645 *
646 * Called by a driver's TV initialization routine, this function creates
647 * the TV specific connector properties for a given device. Caller is
648 * responsible for allocating a list of format names and passing them to
649 * this routine.
650 */
651 int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
652 char *modes[])
653 {
654 struct drm_property *tv_selector;
655 struct drm_property *tv_subconnector;
656 int i;
657
658 if (dev->mode_config.tv_select_subconnector_property)
659 return 0;
660
661 /*
662 * Basic connector properties
663 */
664 tv_selector = drm_property_create(dev, DRM_MODE_PROP_ENUM,
665 "select subconnector",
666 ARRAY_SIZE(drm_tv_select_enum_list));
667 for (i = 0; i < ARRAY_SIZE(drm_tv_select_enum_list); i++)
668 drm_property_add_enum(tv_selector, i,
669 drm_tv_select_enum_list[i].type,
670 drm_tv_select_enum_list[i].name);
671 dev->mode_config.tv_select_subconnector_property = tv_selector;
672
673 tv_subconnector =
674 drm_property_create(dev, DRM_MODE_PROP_ENUM |
675 DRM_MODE_PROP_IMMUTABLE, "subconnector",
676 ARRAY_SIZE(drm_tv_subconnector_enum_list));
677 for (i = 0; i < ARRAY_SIZE(drm_tv_subconnector_enum_list); i++)
678 drm_property_add_enum(tv_subconnector, i,
679 drm_tv_subconnector_enum_list[i].type,
680 drm_tv_subconnector_enum_list[i].name);
681 dev->mode_config.tv_subconnector_property = tv_subconnector;
682
683 /*
684 * Other, TV specific properties: margins & TV modes.
685 */
686 dev->mode_config.tv_left_margin_property =
687 drm_property_create(dev, DRM_MODE_PROP_RANGE,
688 "left margin", 2);
689 dev->mode_config.tv_left_margin_property->values[0] = 0;
690 dev->mode_config.tv_left_margin_property->values[1] = 100;
691
692 dev->mode_config.tv_right_margin_property =
693 drm_property_create(dev, DRM_MODE_PROP_RANGE,
694 "right margin", 2);
695 dev->mode_config.tv_right_margin_property->values[0] = 0;
696 dev->mode_config.tv_right_margin_property->values[1] = 100;
697
698 dev->mode_config.tv_top_margin_property =
699 drm_property_create(dev, DRM_MODE_PROP_RANGE,
700 "top margin", 2);
701 dev->mode_config.tv_top_margin_property->values[0] = 0;
702 dev->mode_config.tv_top_margin_property->values[1] = 100;
703
704 dev->mode_config.tv_bottom_margin_property =
705 drm_property_create(dev, DRM_MODE_PROP_RANGE,
706 "bottom margin", 2);
707 dev->mode_config.tv_bottom_margin_property->values[0] = 0;
708 dev->mode_config.tv_bottom_margin_property->values[1] = 100;
709
710 dev->mode_config.tv_mode_property =
711 drm_property_create(dev, DRM_MODE_PROP_ENUM,
712 "mode", num_modes);
713 for (i = 0; i < num_modes; i++)
714 drm_property_add_enum(dev->mode_config.tv_mode_property, i,
715 i, modes[i]);
716
717 dev->mode_config.tv_brightness_property =
718 drm_property_create(dev, DRM_MODE_PROP_RANGE,
719 "brightness", 2);
720 dev->mode_config.tv_brightness_property->values[0] = 0;
721 dev->mode_config.tv_brightness_property->values[1] = 100;
722
723 dev->mode_config.tv_contrast_property =
724 drm_property_create(dev, DRM_MODE_PROP_RANGE,
725 "contrast", 2);
726 dev->mode_config.tv_contrast_property->values[0] = 0;
727 dev->mode_config.tv_contrast_property->values[1] = 100;
728
729 dev->mode_config.tv_flicker_reduction_property =
730 drm_property_create(dev, DRM_MODE_PROP_RANGE,
731 "flicker reduction", 2);
732 dev->mode_config.tv_flicker_reduction_property->values[0] = 0;
733 dev->mode_config.tv_flicker_reduction_property->values[1] = 100;
734
735 dev->mode_config.tv_overscan_property =
736 drm_property_create(dev, DRM_MODE_PROP_RANGE,
737 "overscan", 2);
738 dev->mode_config.tv_overscan_property->values[0] = 0;
739 dev->mode_config.tv_overscan_property->values[1] = 100;
740
741 dev->mode_config.tv_saturation_property =
742 drm_property_create(dev, DRM_MODE_PROP_RANGE,
743 "saturation", 2);
744 dev->mode_config.tv_saturation_property->values[0] = 0;
745 dev->mode_config.tv_saturation_property->values[1] = 100;
746
747 dev->mode_config.tv_hue_property =
748 drm_property_create(dev, DRM_MODE_PROP_RANGE,
749 "hue", 2);
750 dev->mode_config.tv_hue_property->values[0] = 0;
751 dev->mode_config.tv_hue_property->values[1] = 100;
752
753 return 0;
754 }
755 EXPORT_SYMBOL(drm_mode_create_tv_properties);
756
757 /**
758 * drm_mode_create_scaling_mode_property - create scaling mode property
759 * @dev: DRM device
760 *
761 * Called by a driver the first time it's needed, must be attached to desired
762 * connectors.
763 */
764 int drm_mode_create_scaling_mode_property(struct drm_device *dev)
765 {
766 struct drm_property *scaling_mode;
767 int i;
768
769 if (dev->mode_config.scaling_mode_property)
770 return 0;
771
772 scaling_mode =
773 drm_property_create(dev, DRM_MODE_PROP_ENUM, "scaling mode",
774 ARRAY_SIZE(drm_scaling_mode_enum_list));
775 for (i = 0; i < ARRAY_SIZE(drm_scaling_mode_enum_list); i++)
776 drm_property_add_enum(scaling_mode, i,
777 drm_scaling_mode_enum_list[i].type,
778 drm_scaling_mode_enum_list[i].name);
779
780 dev->mode_config.scaling_mode_property = scaling_mode;
781
782 return 0;
783 }
784 EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
785
786 /**
787 * drm_mode_create_dithering_property - create dithering property
788 * @dev: DRM device
789 *
790 * Called by a driver the first time it's needed, must be attached to desired
791 * connectors.
792 */
793 int drm_mode_create_dithering_property(struct drm_device *dev)
794 {
795 struct drm_property *dithering_mode;
796 int i;
797
798 if (dev->mode_config.dithering_mode_property)
799 return 0;
800
801 dithering_mode =
802 drm_property_create(dev, DRM_MODE_PROP_ENUM, "dithering",
803 ARRAY_SIZE(drm_dithering_mode_enum_list));
804 for (i = 0; i < ARRAY_SIZE(drm_dithering_mode_enum_list); i++)
805 drm_property_add_enum(dithering_mode, i,
806 drm_dithering_mode_enum_list[i].type,
807 drm_dithering_mode_enum_list[i].name);
808 dev->mode_config.dithering_mode_property = dithering_mode;
809
810 return 0;
811 }
812 EXPORT_SYMBOL(drm_mode_create_dithering_property);
813
814 /**
815 * drm_mode_create_dirty_property - create dirty property
816 * @dev: DRM device
817 *
818 * Called by a driver the first time it's needed, must be attached to desired
819 * connectors.
820 */
821 int drm_mode_create_dirty_info_property(struct drm_device *dev)
822 {
823 struct drm_property *dirty_info;
824 int i;
825
826 if (dev->mode_config.dirty_info_property)
827 return 0;
828
829 dirty_info =
830 drm_property_create(dev, DRM_MODE_PROP_ENUM |
831 DRM_MODE_PROP_IMMUTABLE,
832 "dirty",
833 ARRAY_SIZE(drm_dirty_info_enum_list));
834 for (i = 0; i < ARRAY_SIZE(drm_dirty_info_enum_list); i++)
835 drm_property_add_enum(dirty_info, i,
836 drm_dirty_info_enum_list[i].type,
837 drm_dirty_info_enum_list[i].name);
838 dev->mode_config.dirty_info_property = dirty_info;
839
840 return 0;
841 }
842 EXPORT_SYMBOL(drm_mode_create_dirty_info_property);
843
844 /**
845 * drm_mode_config_init - initialize DRM mode_configuration structure
846 * @dev: DRM device
847 *
848 * LOCKING:
849 * None, should happen single threaded at init time.
850 *
851 * Initialize @dev's mode_config structure, used for tracking the graphics
852 * configuration of @dev.
853 */
854 void drm_mode_config_init(struct drm_device *dev)
855 {
856 mutex_init(&dev->mode_config.mutex);
857 mutex_init(&dev->mode_config.idr_mutex);
858 INIT_LIST_HEAD(&dev->mode_config.fb_list);
859 INIT_LIST_HEAD(&dev->mode_config.fb_kernel_list);
860 INIT_LIST_HEAD(&dev->mode_config.crtc_list);
861 INIT_LIST_HEAD(&dev->mode_config.connector_list);
862 INIT_LIST_HEAD(&dev->mode_config.encoder_list);
863 INIT_LIST_HEAD(&dev->mode_config.property_list);
864 INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
865 idr_init(&dev->mode_config.crtc_idr);
866
867 mutex_lock(&dev->mode_config.mutex);
868 drm_mode_create_standard_connector_properties(dev);
869 mutex_unlock(&dev->mode_config.mutex);
870
871 /* Just to be sure */
872 dev->mode_config.num_fb = 0;
873 dev->mode_config.num_connector = 0;
874 dev->mode_config.num_crtc = 0;
875 dev->mode_config.num_encoder = 0;
876 }
877 EXPORT_SYMBOL(drm_mode_config_init);
878
879 int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
880 {
881 uint32_t total_objects = 0;
882
883 total_objects += dev->mode_config.num_crtc;
884 total_objects += dev->mode_config.num_connector;
885 total_objects += dev->mode_config.num_encoder;
886
887 if (total_objects == 0)
888 return -EINVAL;
889
890 group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
891 if (!group->id_list)
892 return -ENOMEM;
893
894 group->num_crtcs = 0;
895 group->num_connectors = 0;
896 group->num_encoders = 0;
897 return 0;
898 }
899
900 int drm_mode_group_init_legacy_group(struct drm_device *dev,
901 struct drm_mode_group *group)
902 {
903 struct drm_crtc *crtc;
904 struct drm_encoder *encoder;
905 struct drm_connector *connector;
906 int ret;
907
908 if ((ret = drm_mode_group_init(dev, group)))
909 return ret;
910
911 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
912 group->id_list[group->num_crtcs++] = crtc->base.id;
913
914 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
915 group->id_list[group->num_crtcs + group->num_encoders++] =
916 encoder->base.id;
917
918 list_for_each_entry(connector, &dev->mode_config.connector_list, head)
919 group->id_list[group->num_crtcs + group->num_encoders +
920 group->num_connectors++] = connector->base.id;
921
922 return 0;
923 }
924
925 /**
926 * drm_mode_config_cleanup - free up DRM mode_config info
927 * @dev: DRM device
928 *
929 * LOCKING:
930 * Caller must hold mode config lock.
931 *
932 * Free up all the connectors and CRTCs associated with this DRM device, then
933 * free up the framebuffers and associated buffer objects.
934 *
935 * FIXME: cleanup any dangling user buffer objects too
936 */
937 void drm_mode_config_cleanup(struct drm_device *dev)
938 {
939 struct drm_connector *connector, *ot;
940 struct drm_crtc *crtc, *ct;
941 struct drm_encoder *encoder, *enct;
942 struct drm_framebuffer *fb, *fbt;
943 struct drm_property *property, *pt;
944
945 list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
946 head) {
947 encoder->funcs->destroy(encoder);
948 }
949
950 list_for_each_entry_safe(connector, ot,
951 &dev->mode_config.connector_list, head) {
952 connector->funcs->destroy(connector);
953 }
954
955 list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
956 head) {
957 drm_property_destroy(dev, property);
958 }
959
960 list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
961 fb->funcs->destroy(fb);
962 }
963
964 list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
965 crtc->funcs->destroy(crtc);
966 }
967
968 }
969 EXPORT_SYMBOL(drm_mode_config_cleanup);
970
971 /**
972 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
973 * @out: drm_mode_modeinfo struct to return to the user
974 * @in: drm_display_mode to use
975 *
976 * LOCKING:
977 * None.
978 *
979 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
980 * the user.
981 */
982 void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
983 struct drm_display_mode *in)
984 {
985 out->clock = in->clock;
986 out->hdisplay = in->hdisplay;
987 out->hsync_start = in->hsync_start;
988 out->hsync_end = in->hsync_end;
989 out->htotal = in->htotal;
990 out->hskew = in->hskew;
991 out->vdisplay = in->vdisplay;
992 out->vsync_start = in->vsync_start;
993 out->vsync_end = in->vsync_end;
994 out->vtotal = in->vtotal;
995 out->vscan = in->vscan;
996 out->vrefresh = in->vrefresh;
997 out->flags = in->flags;
998 out->type = in->type;
999 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1000 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1001 }
1002
1003 /**
1004 * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
1005 * @out: drm_display_mode to return to the user
1006 * @in: drm_mode_modeinfo to use
1007 *
1008 * LOCKING:
1009 * None.
1010 *
1011 * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
1012 * the caller.
1013 */
1014 void drm_crtc_convert_umode(struct drm_display_mode *out,
1015 struct drm_mode_modeinfo *in)
1016 {
1017 out->clock = in->clock;
1018 out->hdisplay = in->hdisplay;
1019 out->hsync_start = in->hsync_start;
1020 out->hsync_end = in->hsync_end;
1021 out->htotal = in->htotal;
1022 out->hskew = in->hskew;
1023 out->vdisplay = in->vdisplay;
1024 out->vsync_start = in->vsync_start;
1025 out->vsync_end = in->vsync_end;
1026 out->vtotal = in->vtotal;
1027 out->vscan = in->vscan;
1028 out->vrefresh = in->vrefresh;
1029 out->flags = in->flags;
1030 out->type = in->type;
1031 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1032 out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1033 }
1034
1035 /**
1036 * drm_mode_getresources - get graphics configuration
1037 * @inode: inode from the ioctl
1038 * @filp: file * from the ioctl
1039 * @cmd: cmd from ioctl
1040 * @arg: arg from ioctl
1041 *
1042 * LOCKING:
1043 * Takes mode config lock.
1044 *
1045 * Construct a set of configuration description structures and return
1046 * them to the user, including CRTC, connector and framebuffer configuration.
1047 *
1048 * Called by the user via ioctl.
1049 *
1050 * RETURNS:
1051 * Zero on success, errno on failure.
1052 */
1053 int drm_mode_getresources(struct drm_device *dev, void *data,
1054 struct drm_file *file_priv)
1055 {
1056 struct drm_mode_card_res *card_res = data;
1057 struct list_head *lh;
1058 struct drm_framebuffer *fb;
1059 struct drm_connector *connector;
1060 struct drm_crtc *crtc;
1061 struct drm_encoder *encoder;
1062 int ret = 0;
1063 int connector_count = 0;
1064 int crtc_count = 0;
1065 int fb_count = 0;
1066 int encoder_count = 0;
1067 int copied = 0, i;
1068 uint32_t __user *fb_id;
1069 uint32_t __user *crtc_id;
1070 uint32_t __user *connector_id;
1071 uint32_t __user *encoder_id;
1072 struct drm_mode_group *mode_group;
1073
1074 mutex_lock(&dev->mode_config.mutex);
1075
1076 /*
1077 * For the non-control nodes we need to limit the list of resources
1078 * by IDs in the group list for this node
1079 */
1080 list_for_each(lh, &file_priv->fbs)
1081 fb_count++;
1082
1083 mode_group = &file_priv->master->minor->mode_group;
1084 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1085
1086 list_for_each(lh, &dev->mode_config.crtc_list)
1087 crtc_count++;
1088
1089 list_for_each(lh, &dev->mode_config.connector_list)
1090 connector_count++;
1091
1092 list_for_each(lh, &dev->mode_config.encoder_list)
1093 encoder_count++;
1094 } else {
1095
1096 crtc_count = mode_group->num_crtcs;
1097 connector_count = mode_group->num_connectors;
1098 encoder_count = mode_group->num_encoders;
1099 }
1100
1101 card_res->max_height = dev->mode_config.max_height;
1102 card_res->min_height = dev->mode_config.min_height;
1103 card_res->max_width = dev->mode_config.max_width;
1104 card_res->min_width = dev->mode_config.min_width;
1105
1106 /* handle this in 4 parts */
1107 /* FBs */
1108 if (card_res->count_fbs >= fb_count) {
1109 copied = 0;
1110 fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
1111 list_for_each_entry(fb, &file_priv->fbs, head) {
1112 if (put_user(fb->base.id, fb_id + copied)) {
1113 ret = -EFAULT;
1114 goto out;
1115 }
1116 copied++;
1117 }
1118 }
1119 card_res->count_fbs = fb_count;
1120
1121 /* CRTCs */
1122 if (card_res->count_crtcs >= crtc_count) {
1123 copied = 0;
1124 crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
1125 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1126 list_for_each_entry(crtc, &dev->mode_config.crtc_list,
1127 head) {
1128 DRM_DEBUG_KMS("CRTC ID is %d\n", crtc->base.id);
1129 if (put_user(crtc->base.id, crtc_id + copied)) {
1130 ret = -EFAULT;
1131 goto out;
1132 }
1133 copied++;
1134 }
1135 } else {
1136 for (i = 0; i < mode_group->num_crtcs; i++) {
1137 if (put_user(mode_group->id_list[i],
1138 crtc_id + copied)) {
1139 ret = -EFAULT;
1140 goto out;
1141 }
1142 copied++;
1143 }
1144 }
1145 }
1146 card_res->count_crtcs = crtc_count;
1147
1148 /* Encoders */
1149 if (card_res->count_encoders >= encoder_count) {
1150 copied = 0;
1151 encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
1152 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1153 list_for_each_entry(encoder,
1154 &dev->mode_config.encoder_list,
1155 head) {
1156 DRM_DEBUG_KMS("ENCODER ID is %d\n",
1157 encoder->base.id);
1158 if (put_user(encoder->base.id, encoder_id +
1159 copied)) {
1160 ret = -EFAULT;
1161 goto out;
1162 }
1163 copied++;
1164 }
1165 } else {
1166 for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
1167 if (put_user(mode_group->id_list[i],
1168 encoder_id + copied)) {
1169 ret = -EFAULT;
1170 goto out;
1171 }
1172 copied++;
1173 }
1174
1175 }
1176 }
1177 card_res->count_encoders = encoder_count;
1178
1179 /* Connectors */
1180 if (card_res->count_connectors >= connector_count) {
1181 copied = 0;
1182 connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
1183 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1184 list_for_each_entry(connector,
1185 &dev->mode_config.connector_list,
1186 head) {
1187 DRM_DEBUG_KMS("CONNECTOR ID is %d\n",
1188 connector->base.id);
1189 if (put_user(connector->base.id,
1190 connector_id + copied)) {
1191 ret = -EFAULT;
1192 goto out;
1193 }
1194 copied++;
1195 }
1196 } else {
1197 int start = mode_group->num_crtcs +
1198 mode_group->num_encoders;
1199 for (i = start; i < start + mode_group->num_connectors; i++) {
1200 if (put_user(mode_group->id_list[i],
1201 connector_id + copied)) {
1202 ret = -EFAULT;
1203 goto out;
1204 }
1205 copied++;
1206 }
1207 }
1208 }
1209 card_res->count_connectors = connector_count;
1210
1211 DRM_DEBUG_KMS("Counted %d %d %d\n", card_res->count_crtcs,
1212 card_res->count_connectors, card_res->count_encoders);
1213
1214 out:
1215 mutex_unlock(&dev->mode_config.mutex);
1216 return ret;
1217 }
1218
1219 /**
1220 * drm_mode_getcrtc - get CRTC configuration
1221 * @inode: inode from the ioctl
1222 * @filp: file * from the ioctl
1223 * @cmd: cmd from ioctl
1224 * @arg: arg from ioctl
1225 *
1226 * LOCKING:
1227 * Caller? (FIXME)
1228 *
1229 * Construct a CRTC configuration structure to return to the user.
1230 *
1231 * Called by the user via ioctl.
1232 *
1233 * RETURNS:
1234 * Zero on success, errno on failure.
1235 */
1236 int drm_mode_getcrtc(struct drm_device *dev,
1237 void *data, struct drm_file *file_priv)
1238 {
1239 struct drm_mode_crtc *crtc_resp = data;
1240 struct drm_crtc *crtc;
1241 struct drm_mode_object *obj;
1242 int ret = 0;
1243
1244 mutex_lock(&dev->mode_config.mutex);
1245
1246 obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
1247 DRM_MODE_OBJECT_CRTC);
1248 if (!obj) {
1249 ret = -EINVAL;
1250 goto out;
1251 }
1252 crtc = obj_to_crtc(obj);
1253
1254 crtc_resp->x = crtc->x;
1255 crtc_resp->y = crtc->y;
1256 crtc_resp->gamma_size = crtc->gamma_size;
1257 if (crtc->fb)
1258 crtc_resp->fb_id = crtc->fb->base.id;
1259 else
1260 crtc_resp->fb_id = 0;
1261
1262 if (crtc->enabled) {
1263
1264 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
1265 crtc_resp->mode_valid = 1;
1266
1267 } else {
1268 crtc_resp->mode_valid = 0;
1269 }
1270
1271 out:
1272 mutex_unlock(&dev->mode_config.mutex);
1273 return ret;
1274 }
1275
1276 /**
1277 * drm_mode_getconnector - get connector configuration
1278 * @inode: inode from the ioctl
1279 * @filp: file * from the ioctl
1280 * @cmd: cmd from ioctl
1281 * @arg: arg from ioctl
1282 *
1283 * LOCKING:
1284 * Caller? (FIXME)
1285 *
1286 * Construct a connector configuration structure to return to the user.
1287 *
1288 * Called by the user via ioctl.
1289 *
1290 * RETURNS:
1291 * Zero on success, errno on failure.
1292 */
1293 int drm_mode_getconnector(struct drm_device *dev, void *data,
1294 struct drm_file *file_priv)
1295 {
1296 struct drm_mode_get_connector *out_resp = data;
1297 struct drm_mode_object *obj;
1298 struct drm_connector *connector;
1299 struct drm_display_mode *mode;
1300 int mode_count = 0;
1301 int props_count = 0;
1302 int encoders_count = 0;
1303 int ret = 0;
1304 int copied = 0;
1305 int i;
1306 struct drm_mode_modeinfo u_mode;
1307 struct drm_mode_modeinfo __user *mode_ptr;
1308 uint32_t __user *prop_ptr;
1309 uint64_t __user *prop_values;
1310 uint32_t __user *encoder_ptr;
1311
1312 memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
1313
1314 DRM_DEBUG_KMS("connector id %d:\n", out_resp->connector_id);
1315
1316 mutex_lock(&dev->mode_config.mutex);
1317
1318 obj = drm_mode_object_find(dev, out_resp->connector_id,
1319 DRM_MODE_OBJECT_CONNECTOR);
1320 if (!obj) {
1321 ret = -EINVAL;
1322 goto out;
1323 }
1324 connector = obj_to_connector(obj);
1325
1326 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1327 if (connector->property_ids[i] != 0) {
1328 props_count++;
1329 }
1330 }
1331
1332 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1333 if (connector->encoder_ids[i] != 0) {
1334 encoders_count++;
1335 }
1336 }
1337
1338 if (out_resp->count_modes == 0) {
1339 connector->funcs->fill_modes(connector,
1340 dev->mode_config.max_width,
1341 dev->mode_config.max_height);
1342 }
1343
1344 /* delayed so we get modes regardless of pre-fill_modes state */
1345 list_for_each_entry(mode, &connector->modes, head)
1346 mode_count++;
1347
1348 out_resp->connector_id = connector->base.id;
1349 out_resp->connector_type = connector->connector_type;
1350 out_resp->connector_type_id = connector->connector_type_id;
1351 out_resp->mm_width = connector->display_info.width_mm;
1352 out_resp->mm_height = connector->display_info.height_mm;
1353 out_resp->subpixel = connector->display_info.subpixel_order;
1354 out_resp->connection = connector->status;
1355 if (connector->encoder)
1356 out_resp->encoder_id = connector->encoder->base.id;
1357 else
1358 out_resp->encoder_id = 0;
1359
1360 /*
1361 * This ioctl is called twice, once to determine how much space is
1362 * needed, and the 2nd time to fill it.
1363 */
1364 if ((out_resp->count_modes >= mode_count) && mode_count) {
1365 copied = 0;
1366 mode_ptr = (struct drm_mode_modeinfo *)(unsigned long)out_resp->modes_ptr;
1367 list_for_each_entry(mode, &connector->modes, head) {
1368 drm_crtc_convert_to_umode(&u_mode, mode);
1369 if (copy_to_user(mode_ptr + copied,
1370 &u_mode, sizeof(u_mode))) {
1371 ret = -EFAULT;
1372 goto out;
1373 }
1374 copied++;
1375 }
1376 }
1377 out_resp->count_modes = mode_count;
1378
1379 if ((out_resp->count_props >= props_count) && props_count) {
1380 copied = 0;
1381 prop_ptr = (uint32_t *)(unsigned long)(out_resp->props_ptr);
1382 prop_values = (uint64_t *)(unsigned long)(out_resp->prop_values_ptr);
1383 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1384 if (connector->property_ids[i] != 0) {
1385 if (put_user(connector->property_ids[i],
1386 prop_ptr + copied)) {
1387 ret = -EFAULT;
1388 goto out;
1389 }
1390
1391 if (put_user(connector->property_values[i],
1392 prop_values + copied)) {
1393 ret = -EFAULT;
1394 goto out;
1395 }
1396 copied++;
1397 }
1398 }
1399 }
1400 out_resp->count_props = props_count;
1401
1402 if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
1403 copied = 0;
1404 encoder_ptr = (uint32_t *)(unsigned long)(out_resp->encoders_ptr);
1405 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1406 if (connector->encoder_ids[i] != 0) {
1407 if (put_user(connector->encoder_ids[i],
1408 encoder_ptr + copied)) {
1409 ret = -EFAULT;
1410 goto out;
1411 }
1412 copied++;
1413 }
1414 }
1415 }
1416 out_resp->count_encoders = encoders_count;
1417
1418 out:
1419 mutex_unlock(&dev->mode_config.mutex);
1420 return ret;
1421 }
1422
1423 int drm_mode_getencoder(struct drm_device *dev, void *data,
1424 struct drm_file *file_priv)
1425 {
1426 struct drm_mode_get_encoder *enc_resp = data;
1427 struct drm_mode_object *obj;
1428 struct drm_encoder *encoder;
1429 int ret = 0;
1430
1431 mutex_lock(&dev->mode_config.mutex);
1432 obj = drm_mode_object_find(dev, enc_resp->encoder_id,
1433 DRM_MODE_OBJECT_ENCODER);
1434 if (!obj) {
1435 ret = -EINVAL;
1436 goto out;
1437 }
1438 encoder = obj_to_encoder(obj);
1439
1440 if (encoder->crtc)
1441 enc_resp->crtc_id = encoder->crtc->base.id;
1442 else
1443 enc_resp->crtc_id = 0;
1444 enc_resp->encoder_type = encoder->encoder_type;
1445 enc_resp->encoder_id = encoder->base.id;
1446 enc_resp->possible_crtcs = encoder->possible_crtcs;
1447 enc_resp->possible_clones = encoder->possible_clones;
1448
1449 out:
1450 mutex_unlock(&dev->mode_config.mutex);
1451 return ret;
1452 }
1453
1454 /**
1455 * drm_mode_setcrtc - set CRTC configuration
1456 * @inode: inode from the ioctl
1457 * @filp: file * from the ioctl
1458 * @cmd: cmd from ioctl
1459 * @arg: arg from ioctl
1460 *
1461 * LOCKING:
1462 * Caller? (FIXME)
1463 *
1464 * Build a new CRTC configuration based on user request.
1465 *
1466 * Called by the user via ioctl.
1467 *
1468 * RETURNS:
1469 * Zero on success, errno on failure.
1470 */
1471 int drm_mode_setcrtc(struct drm_device *dev, void *data,
1472 struct drm_file *file_priv)
1473 {
1474 struct drm_mode_config *config = &dev->mode_config;
1475 struct drm_mode_crtc *crtc_req = data;
1476 struct drm_mode_object *obj;
1477 struct drm_crtc *crtc, *crtcfb;
1478 struct drm_connector **connector_set = NULL, *connector;
1479 struct drm_framebuffer *fb = NULL;
1480 struct drm_display_mode *mode = NULL;
1481 struct drm_mode_set set;
1482 uint32_t __user *set_connectors_ptr;
1483 int ret = 0;
1484 int i;
1485
1486 mutex_lock(&dev->mode_config.mutex);
1487 obj = drm_mode_object_find(dev, crtc_req->crtc_id,
1488 DRM_MODE_OBJECT_CRTC);
1489 if (!obj) {
1490 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
1491 ret = -EINVAL;
1492 goto out;
1493 }
1494 crtc = obj_to_crtc(obj);
1495
1496 if (crtc_req->mode_valid) {
1497 /* If we have a mode we need a framebuffer. */
1498 /* If we pass -1, set the mode with the currently bound fb */
1499 if (crtc_req->fb_id == -1) {
1500 list_for_each_entry(crtcfb,
1501 &dev->mode_config.crtc_list, head) {
1502 if (crtcfb == crtc) {
1503 DRM_DEBUG_KMS("Using current fb for "
1504 "setmode\n");
1505 fb = crtc->fb;
1506 }
1507 }
1508 } else {
1509 obj = drm_mode_object_find(dev, crtc_req->fb_id,
1510 DRM_MODE_OBJECT_FB);
1511 if (!obj) {
1512 DRM_DEBUG_KMS("Unknown FB ID%d\n",
1513 crtc_req->fb_id);
1514 ret = -EINVAL;
1515 goto out;
1516 }
1517 fb = obj_to_fb(obj);
1518 }
1519
1520 mode = drm_mode_create(dev);
1521 drm_crtc_convert_umode(mode, &crtc_req->mode);
1522 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
1523 }
1524
1525 if (crtc_req->count_connectors == 0 && mode) {
1526 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
1527 ret = -EINVAL;
1528 goto out;
1529 }
1530
1531 if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
1532 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
1533 crtc_req->count_connectors);
1534 ret = -EINVAL;
1535 goto out;
1536 }
1537
1538 if (crtc_req->count_connectors > 0) {
1539 u32 out_id;
1540
1541 /* Avoid unbounded kernel memory allocation */
1542 if (crtc_req->count_connectors > config->num_connector) {
1543 ret = -EINVAL;
1544 goto out;
1545 }
1546
1547 connector_set = kmalloc(crtc_req->count_connectors *
1548 sizeof(struct drm_connector *),
1549 GFP_KERNEL);
1550 if (!connector_set) {
1551 ret = -ENOMEM;
1552 goto out;
1553 }
1554
1555 for (i = 0; i < crtc_req->count_connectors; i++) {
1556 set_connectors_ptr = (uint32_t *)(unsigned long)crtc_req->set_connectors_ptr;
1557 if (get_user(out_id, &set_connectors_ptr[i])) {
1558 ret = -EFAULT;
1559 goto out;
1560 }
1561
1562 obj = drm_mode_object_find(dev, out_id,
1563 DRM_MODE_OBJECT_CONNECTOR);
1564 if (!obj) {
1565 DRM_DEBUG_KMS("Connector id %d unknown\n",
1566 out_id);
1567 ret = -EINVAL;
1568 goto out;
1569 }
1570 connector = obj_to_connector(obj);
1571
1572 connector_set[i] = connector;
1573 }
1574 }
1575
1576 set.crtc = crtc;
1577 set.x = crtc_req->x;
1578 set.y = crtc_req->y;
1579 set.mode = mode;
1580 set.connectors = connector_set;
1581 set.num_connectors = crtc_req->count_connectors;
1582 set.fb = fb;
1583 ret = crtc->funcs->set_config(&set);
1584
1585 out:
1586 kfree(connector_set);
1587 mutex_unlock(&dev->mode_config.mutex);
1588 return ret;
1589 }
1590
1591 int drm_mode_cursor_ioctl(struct drm_device *dev,
1592 void *data, struct drm_file *file_priv)
1593 {
1594 struct drm_mode_cursor *req = data;
1595 struct drm_mode_object *obj;
1596 struct drm_crtc *crtc;
1597 int ret = 0;
1598
1599 if (!req->flags) {
1600 DRM_ERROR("no operation set\n");
1601 return -EINVAL;
1602 }
1603
1604 mutex_lock(&dev->mode_config.mutex);
1605 obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
1606 if (!obj) {
1607 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
1608 ret = -EINVAL;
1609 goto out;
1610 }
1611 crtc = obj_to_crtc(obj);
1612
1613 if (req->flags & DRM_MODE_CURSOR_BO) {
1614 if (!crtc->funcs->cursor_set) {
1615 DRM_ERROR("crtc does not support cursor\n");
1616 ret = -ENXIO;
1617 goto out;
1618 }
1619 /* Turns off the cursor if handle is 0 */
1620 ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
1621 req->width, req->height);
1622 }
1623
1624 if (req->flags & DRM_MODE_CURSOR_MOVE) {
1625 if (crtc->funcs->cursor_move) {
1626 ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
1627 } else {
1628 DRM_ERROR("crtc does not support cursor\n");
1629 ret = -EFAULT;
1630 goto out;
1631 }
1632 }
1633 out:
1634 mutex_unlock(&dev->mode_config.mutex);
1635 return ret;
1636 }
1637
1638 /**
1639 * drm_mode_addfb - add an FB to the graphics configuration
1640 * @inode: inode from the ioctl
1641 * @filp: file * from the ioctl
1642 * @cmd: cmd from ioctl
1643 * @arg: arg from ioctl
1644 *
1645 * LOCKING:
1646 * Takes mode config lock.
1647 *
1648 * Add a new FB to the specified CRTC, given a user request.
1649 *
1650 * Called by the user via ioctl.
1651 *
1652 * RETURNS:
1653 * Zero on success, errno on failure.
1654 */
1655 int drm_mode_addfb(struct drm_device *dev,
1656 void *data, struct drm_file *file_priv)
1657 {
1658 struct drm_mode_fb_cmd *r = data;
1659 struct drm_mode_config *config = &dev->mode_config;
1660 struct drm_framebuffer *fb;
1661 int ret = 0;
1662
1663 if ((config->min_width > r->width) || (r->width > config->max_width)) {
1664 DRM_ERROR("mode new framebuffer width not within limits\n");
1665 return -EINVAL;
1666 }
1667 if ((config->min_height > r->height) || (r->height > config->max_height)) {
1668 DRM_ERROR("mode new framebuffer height not within limits\n");
1669 return -EINVAL;
1670 }
1671
1672 mutex_lock(&dev->mode_config.mutex);
1673
1674 /* TODO check buffer is sufficently large */
1675 /* TODO setup destructor callback */
1676
1677 fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
1678 if (!fb) {
1679 DRM_ERROR("could not create framebuffer\n");
1680 ret = -EINVAL;
1681 goto out;
1682 }
1683
1684 r->fb_id = fb->base.id;
1685 list_add(&fb->filp_head, &file_priv->fbs);
1686
1687 out:
1688 mutex_unlock(&dev->mode_config.mutex);
1689 return ret;
1690 }
1691
1692 /**
1693 * drm_mode_rmfb - remove an FB from the configuration
1694 * @inode: inode from the ioctl
1695 * @filp: file * from the ioctl
1696 * @cmd: cmd from ioctl
1697 * @arg: arg from ioctl
1698 *
1699 * LOCKING:
1700 * Takes mode config lock.
1701 *
1702 * Remove the FB specified by the user.
1703 *
1704 * Called by the user via ioctl.
1705 *
1706 * RETURNS:
1707 * Zero on success, errno on failure.
1708 */
1709 int drm_mode_rmfb(struct drm_device *dev,
1710 void *data, struct drm_file *file_priv)
1711 {
1712 struct drm_mode_object *obj;
1713 struct drm_framebuffer *fb = NULL;
1714 struct drm_framebuffer *fbl = NULL;
1715 uint32_t *id = data;
1716 int ret = 0;
1717 int found = 0;
1718
1719 mutex_lock(&dev->mode_config.mutex);
1720 obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB);
1721 /* TODO check that we realy get a framebuffer back. */
1722 if (!obj) {
1723 DRM_ERROR("mode invalid framebuffer id\n");
1724 ret = -EINVAL;
1725 goto out;
1726 }
1727 fb = obj_to_fb(obj);
1728
1729 list_for_each_entry(fbl, &file_priv->fbs, filp_head)
1730 if (fb == fbl)
1731 found = 1;
1732
1733 if (!found) {
1734 DRM_ERROR("tried to remove a fb that we didn't own\n");
1735 ret = -EINVAL;
1736 goto out;
1737 }
1738
1739 /* TODO release all crtc connected to the framebuffer */
1740 /* TODO unhock the destructor from the buffer object */
1741
1742 list_del(&fb->filp_head);
1743 fb->funcs->destroy(fb);
1744
1745 out:
1746 mutex_unlock(&dev->mode_config.mutex);
1747 return ret;
1748 }
1749
1750 /**
1751 * drm_mode_getfb - get FB info
1752 * @inode: inode from the ioctl
1753 * @filp: file * from the ioctl
1754 * @cmd: cmd from ioctl
1755 * @arg: arg from ioctl
1756 *
1757 * LOCKING:
1758 * Caller? (FIXME)
1759 *
1760 * Lookup the FB given its ID and return info about it.
1761 *
1762 * Called by the user via ioctl.
1763 *
1764 * RETURNS:
1765 * Zero on success, errno on failure.
1766 */
1767 int drm_mode_getfb(struct drm_device *dev,
1768 void *data, struct drm_file *file_priv)
1769 {
1770 struct drm_mode_fb_cmd *r = data;
1771 struct drm_mode_object *obj;
1772 struct drm_framebuffer *fb;
1773 int ret = 0;
1774
1775 mutex_lock(&dev->mode_config.mutex);
1776 obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
1777 if (!obj) {
1778 DRM_ERROR("invalid framebuffer id\n");
1779 ret = -EINVAL;
1780 goto out;
1781 }
1782 fb = obj_to_fb(obj);
1783
1784 r->height = fb->height;
1785 r->width = fb->width;
1786 r->depth = fb->depth;
1787 r->bpp = fb->bits_per_pixel;
1788 r->pitch = fb->pitch;
1789 fb->funcs->create_handle(fb, file_priv, &r->handle);
1790
1791 out:
1792 mutex_unlock(&dev->mode_config.mutex);
1793 return ret;
1794 }
1795
1796 int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
1797 void *data, struct drm_file *file_priv)
1798 {
1799 struct drm_clip_rect __user *clips_ptr;
1800 struct drm_clip_rect *clips = NULL;
1801 struct drm_mode_fb_dirty_cmd *r = data;
1802 struct drm_mode_object *obj;
1803 struct drm_framebuffer *fb;
1804 unsigned flags;
1805 int num_clips;
1806 int ret = 0;
1807
1808 mutex_lock(&dev->mode_config.mutex);
1809 obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
1810 if (!obj) {
1811 DRM_ERROR("invalid framebuffer id\n");
1812 ret = -EINVAL;
1813 goto out_err1;
1814 }
1815 fb = obj_to_fb(obj);
1816
1817 num_clips = r->num_clips;
1818 clips_ptr = (struct drm_clip_rect *)(unsigned long)r->clips_ptr;
1819
1820 if (!num_clips != !clips_ptr) {
1821 ret = -EINVAL;
1822 goto out_err1;
1823 }
1824
1825 flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
1826
1827 /* If userspace annotates copy, clips must come in pairs */
1828 if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
1829 ret = -EINVAL;
1830 goto out_err1;
1831 }
1832
1833 if (num_clips && clips_ptr) {
1834 clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
1835 if (!clips) {
1836 ret = -ENOMEM;
1837 goto out_err1;
1838 }
1839
1840 ret = copy_from_user(clips, clips_ptr,
1841 num_clips * sizeof(*clips));
1842 if (ret)
1843 goto out_err2;
1844 }
1845
1846 if (fb->funcs->dirty) {
1847 ret = fb->funcs->dirty(fb, flags, r->color, clips, num_clips);
1848 } else {
1849 ret = -ENOSYS;
1850 goto out_err2;
1851 }
1852
1853 out_err2:
1854 kfree(clips);
1855 out_err1:
1856 mutex_unlock(&dev->mode_config.mutex);
1857 return ret;
1858 }
1859
1860
1861 /**
1862 * drm_fb_release - remove and free the FBs on this file
1863 * @filp: file * from the ioctl
1864 *
1865 * LOCKING:
1866 * Takes mode config lock.
1867 *
1868 * Destroy all the FBs associated with @filp.
1869 *
1870 * Called by the user via ioctl.
1871 *
1872 * RETURNS:
1873 * Zero on success, errno on failure.
1874 */
1875 void drm_fb_release(struct drm_file *priv)
1876 {
1877 struct drm_device *dev = priv->minor->dev;
1878 struct drm_framebuffer *fb, *tfb;
1879
1880 mutex_lock(&dev->mode_config.mutex);
1881 list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
1882 list_del(&fb->filp_head);
1883 fb->funcs->destroy(fb);
1884 }
1885 mutex_unlock(&dev->mode_config.mutex);
1886 }
1887
1888 /**
1889 * drm_mode_attachmode - add a mode to the user mode list
1890 * @dev: DRM device
1891 * @connector: connector to add the mode to
1892 * @mode: mode to add
1893 *
1894 * Add @mode to @connector's user mode list.
1895 */
1896 static int drm_mode_attachmode(struct drm_device *dev,
1897 struct drm_connector *connector,
1898 struct drm_display_mode *mode)
1899 {
1900 int ret = 0;
1901
1902 list_add_tail(&mode->head, &connector->user_modes);
1903 return ret;
1904 }
1905
1906 int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc,
1907 struct drm_display_mode *mode)
1908 {
1909 struct drm_connector *connector;
1910 int ret = 0;
1911 struct drm_display_mode *dup_mode;
1912 int need_dup = 0;
1913 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1914 if (!connector->encoder)
1915 break;
1916 if (connector->encoder->crtc == crtc) {
1917 if (need_dup)
1918 dup_mode = drm_mode_duplicate(dev, mode);
1919 else
1920 dup_mode = mode;
1921 ret = drm_mode_attachmode(dev, connector, dup_mode);
1922 if (ret)
1923 return ret;
1924 need_dup = 1;
1925 }
1926 }
1927 return 0;
1928 }
1929 EXPORT_SYMBOL(drm_mode_attachmode_crtc);
1930
1931 static int drm_mode_detachmode(struct drm_device *dev,
1932 struct drm_connector *connector,
1933 struct drm_display_mode *mode)
1934 {
1935 int found = 0;
1936 int ret = 0;
1937 struct drm_display_mode *match_mode, *t;
1938
1939 list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) {
1940 if (drm_mode_equal(match_mode, mode)) {
1941 list_del(&match_mode->head);
1942 drm_mode_destroy(dev, match_mode);
1943 found = 1;
1944 break;
1945 }
1946 }
1947
1948 if (!found)
1949 ret = -EINVAL;
1950
1951 return ret;
1952 }
1953
1954 int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode)
1955 {
1956 struct drm_connector *connector;
1957
1958 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1959 drm_mode_detachmode(dev, connector, mode);
1960 }
1961 return 0;
1962 }
1963 EXPORT_SYMBOL(drm_mode_detachmode_crtc);
1964
1965 /**
1966 * drm_fb_attachmode - Attach a user mode to an connector
1967 * @inode: inode from the ioctl
1968 * @filp: file * from the ioctl
1969 * @cmd: cmd from ioctl
1970 * @arg: arg from ioctl
1971 *
1972 * This attaches a user specified mode to an connector.
1973 * Called by the user via ioctl.
1974 *
1975 * RETURNS:
1976 * Zero on success, errno on failure.
1977 */
1978 int drm_mode_attachmode_ioctl(struct drm_device *dev,
1979 void *data, struct drm_file *file_priv)
1980 {
1981 struct drm_mode_mode_cmd *mode_cmd = data;
1982 struct drm_connector *connector;
1983 struct drm_display_mode *mode;
1984 struct drm_mode_object *obj;
1985 struct drm_mode_modeinfo *umode = &mode_cmd->mode;
1986 int ret = 0;
1987
1988 mutex_lock(&dev->mode_config.mutex);
1989
1990 obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
1991 if (!obj) {
1992 ret = -EINVAL;
1993 goto out;
1994 }
1995 connector = obj_to_connector(obj);
1996
1997 mode = drm_mode_create(dev);
1998 if (!mode) {
1999 ret = -ENOMEM;
2000 goto out;
2001 }
2002
2003 drm_crtc_convert_umode(mode, umode);
2004
2005 ret = drm_mode_attachmode(dev, connector, mode);
2006 out:
2007 mutex_unlock(&dev->mode_config.mutex);
2008 return ret;
2009 }
2010
2011
2012 /**
2013 * drm_fb_detachmode - Detach a user specified mode from an connector
2014 * @inode: inode from the ioctl
2015 * @filp: file * from the ioctl
2016 * @cmd: cmd from ioctl
2017 * @arg: arg from ioctl
2018 *
2019 * Called by the user via ioctl.
2020 *
2021 * RETURNS:
2022 * Zero on success, errno on failure.
2023 */
2024 int drm_mode_detachmode_ioctl(struct drm_device *dev,
2025 void *data, struct drm_file *file_priv)
2026 {
2027 struct drm_mode_object *obj;
2028 struct drm_mode_mode_cmd *mode_cmd = data;
2029 struct drm_connector *connector;
2030 struct drm_display_mode mode;
2031 struct drm_mode_modeinfo *umode = &mode_cmd->mode;
2032 int ret = 0;
2033
2034 mutex_lock(&dev->mode_config.mutex);
2035
2036 obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2037 if (!obj) {
2038 ret = -EINVAL;
2039 goto out;
2040 }
2041 connector = obj_to_connector(obj);
2042
2043 drm_crtc_convert_umode(&mode, umode);
2044 ret = drm_mode_detachmode(dev, connector, &mode);
2045 out:
2046 mutex_unlock(&dev->mode_config.mutex);
2047 return ret;
2048 }
2049
2050 struct drm_property *drm_property_create(struct drm_device *dev, int flags,
2051 const char *name, int num_values)
2052 {
2053 struct drm_property *property = NULL;
2054
2055 property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
2056 if (!property)
2057 return NULL;
2058
2059 if (num_values) {
2060 property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
2061 if (!property->values)
2062 goto fail;
2063 }
2064
2065 drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
2066 property->flags = flags;
2067 property->num_values = num_values;
2068 INIT_LIST_HEAD(&property->enum_blob_list);
2069
2070 if (name)
2071 strncpy(property->name, name, DRM_PROP_NAME_LEN);
2072
2073 list_add_tail(&property->head, &dev->mode_config.property_list);
2074 return property;
2075 fail:
2076 kfree(property);
2077 return NULL;
2078 }
2079 EXPORT_SYMBOL(drm_property_create);
2080
2081 int drm_property_add_enum(struct drm_property *property, int index,
2082 uint64_t value, const char *name)
2083 {
2084 struct drm_property_enum *prop_enum;
2085
2086 if (!(property->flags & DRM_MODE_PROP_ENUM))
2087 return -EINVAL;
2088
2089 if (!list_empty(&property->enum_blob_list)) {
2090 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2091 if (prop_enum->value == value) {
2092 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2093 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2094 return 0;
2095 }
2096 }
2097 }
2098
2099 prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
2100 if (!prop_enum)
2101 return -ENOMEM;
2102
2103 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2104 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2105 prop_enum->value = value;
2106
2107 property->values[index] = value;
2108 list_add_tail(&prop_enum->head, &property->enum_blob_list);
2109 return 0;
2110 }
2111 EXPORT_SYMBOL(drm_property_add_enum);
2112
2113 void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
2114 {
2115 struct drm_property_enum *prop_enum, *pt;
2116
2117 list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
2118 list_del(&prop_enum->head);
2119 kfree(prop_enum);
2120 }
2121
2122 if (property->num_values)
2123 kfree(property->values);
2124 drm_mode_object_put(dev, &property->base);
2125 list_del(&property->head);
2126 kfree(property);
2127 }
2128 EXPORT_SYMBOL(drm_property_destroy);
2129
2130 int drm_connector_attach_property(struct drm_connector *connector,
2131 struct drm_property *property, uint64_t init_val)
2132 {
2133 int i;
2134
2135 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2136 if (connector->property_ids[i] == 0) {
2137 connector->property_ids[i] = property->base.id;
2138 connector->property_values[i] = init_val;
2139 break;
2140 }
2141 }
2142
2143 if (i == DRM_CONNECTOR_MAX_PROPERTY)
2144 return -EINVAL;
2145 return 0;
2146 }
2147 EXPORT_SYMBOL(drm_connector_attach_property);
2148
2149 int drm_connector_property_set_value(struct drm_connector *connector,
2150 struct drm_property *property, uint64_t value)
2151 {
2152 int i;
2153
2154 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2155 if (connector->property_ids[i] == property->base.id) {
2156 connector->property_values[i] = value;
2157 break;
2158 }
2159 }
2160
2161 if (i == DRM_CONNECTOR_MAX_PROPERTY)
2162 return -EINVAL;
2163 return 0;
2164 }
2165 EXPORT_SYMBOL(drm_connector_property_set_value);
2166
2167 int drm_connector_property_get_value(struct drm_connector *connector,
2168 struct drm_property *property, uint64_t *val)
2169 {
2170 int i;
2171
2172 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2173 if (connector->property_ids[i] == property->base.id) {
2174 *val = connector->property_values[i];
2175 break;
2176 }
2177 }
2178
2179 if (i == DRM_CONNECTOR_MAX_PROPERTY)
2180 return -EINVAL;
2181 return 0;
2182 }
2183 EXPORT_SYMBOL(drm_connector_property_get_value);
2184
2185 int drm_mode_getproperty_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_property *out_resp = data;
2190 struct drm_property *property;
2191 int enum_count = 0;
2192 int blob_count = 0;
2193 int value_count = 0;
2194 int ret = 0, i;
2195 int copied;
2196 struct drm_property_enum *prop_enum;
2197 struct drm_mode_property_enum __user *enum_ptr;
2198 struct drm_property_blob *prop_blob;
2199 uint32_t *blob_id_ptr;
2200 uint64_t __user *values_ptr;
2201 uint32_t __user *blob_length_ptr;
2202
2203 mutex_lock(&dev->mode_config.mutex);
2204 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2205 if (!obj) {
2206 ret = -EINVAL;
2207 goto done;
2208 }
2209 property = obj_to_property(obj);
2210
2211 if (property->flags & DRM_MODE_PROP_ENUM) {
2212 list_for_each_entry(prop_enum, &property->enum_blob_list, head)
2213 enum_count++;
2214 } else if (property->flags & DRM_MODE_PROP_BLOB) {
2215 list_for_each_entry(prop_blob, &property->enum_blob_list, head)
2216 blob_count++;
2217 }
2218
2219 value_count = property->num_values;
2220
2221 strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
2222 out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
2223 out_resp->flags = property->flags;
2224
2225 if ((out_resp->count_values >= value_count) && value_count) {
2226 values_ptr = (uint64_t *)(unsigned long)out_resp->values_ptr;
2227 for (i = 0; i < value_count; i++) {
2228 if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
2229 ret = -EFAULT;
2230 goto done;
2231 }
2232 }
2233 }
2234 out_resp->count_values = value_count;
2235
2236 if (property->flags & DRM_MODE_PROP_ENUM) {
2237 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
2238 copied = 0;
2239 enum_ptr = (struct drm_mode_property_enum *)(unsigned long)out_resp->enum_blob_ptr;
2240 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2241
2242 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
2243 ret = -EFAULT;
2244 goto done;
2245 }
2246
2247 if (copy_to_user(&enum_ptr[copied].name,
2248 &prop_enum->name, DRM_PROP_NAME_LEN)) {
2249 ret = -EFAULT;
2250 goto done;
2251 }
2252 copied++;
2253 }
2254 }
2255 out_resp->count_enum_blobs = enum_count;
2256 }
2257
2258 if (property->flags & DRM_MODE_PROP_BLOB) {
2259 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
2260 copied = 0;
2261 blob_id_ptr = (uint32_t *)(unsigned long)out_resp->enum_blob_ptr;
2262 blob_length_ptr = (uint32_t *)(unsigned long)out_resp->values_ptr;
2263
2264 list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
2265 if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
2266 ret = -EFAULT;
2267 goto done;
2268 }
2269
2270 if (put_user(prop_blob->length, blob_length_ptr + copied)) {
2271 ret = -EFAULT;
2272 goto done;
2273 }
2274
2275 copied++;
2276 }
2277 }
2278 out_resp->count_enum_blobs = blob_count;
2279 }
2280 done:
2281 mutex_unlock(&dev->mode_config.mutex);
2282 return ret;
2283 }
2284
2285 static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
2286 void *data)
2287 {
2288 struct drm_property_blob *blob;
2289
2290 if (!length || !data)
2291 return NULL;
2292
2293 blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
2294 if (!blob)
2295 return NULL;
2296
2297 blob->data = (void *)((char *)blob + sizeof(struct drm_property_blob));
2298 blob->length = length;
2299
2300 memcpy(blob->data, data, length);
2301
2302 drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
2303
2304 list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
2305 return blob;
2306 }
2307
2308 static void drm_property_destroy_blob(struct drm_device *dev,
2309 struct drm_property_blob *blob)
2310 {
2311 drm_mode_object_put(dev, &blob->base);
2312 list_del(&blob->head);
2313 kfree(blob);
2314 }
2315
2316 int drm_mode_getblob_ioctl(struct drm_device *dev,
2317 void *data, struct drm_file *file_priv)
2318 {
2319 struct drm_mode_object *obj;
2320 struct drm_mode_get_blob *out_resp = data;
2321 struct drm_property_blob *blob;
2322 int ret = 0;
2323 void *blob_ptr;
2324
2325 mutex_lock(&dev->mode_config.mutex);
2326 obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
2327 if (!obj) {
2328 ret = -EINVAL;
2329 goto done;
2330 }
2331 blob = obj_to_blob(obj);
2332
2333 if (out_resp->length == blob->length) {
2334 blob_ptr = (void *)(unsigned long)out_resp->data;
2335 if (copy_to_user(blob_ptr, blob->data, blob->length)){
2336 ret = -EFAULT;
2337 goto done;
2338 }
2339 }
2340 out_resp->length = blob->length;
2341
2342 done:
2343 mutex_unlock(&dev->mode_config.mutex);
2344 return ret;
2345 }
2346
2347 int drm_mode_connector_update_edid_property(struct drm_connector *connector,
2348 struct edid *edid)
2349 {
2350 struct drm_device *dev = connector->dev;
2351 int ret = 0;
2352
2353 if (connector->edid_blob_ptr)
2354 drm_property_destroy_blob(dev, connector->edid_blob_ptr);
2355
2356 /* Delete edid, when there is none. */
2357 if (!edid) {
2358 connector->edid_blob_ptr = NULL;
2359 ret = drm_connector_property_set_value(connector, dev->mode_config.edid_property, 0);
2360 return ret;
2361 }
2362
2363 connector->edid_blob_ptr = drm_property_create_blob(connector->dev, 128, edid);
2364
2365 ret = drm_connector_property_set_value(connector,
2366 dev->mode_config.edid_property,
2367 connector->edid_blob_ptr->base.id);
2368
2369 return ret;
2370 }
2371 EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
2372
2373 int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
2374 void *data, struct drm_file *file_priv)
2375 {
2376 struct drm_mode_connector_set_property *out_resp = data;
2377 struct drm_mode_object *obj;
2378 struct drm_property *property;
2379 struct drm_connector *connector;
2380 int ret = -EINVAL;
2381 int i;
2382
2383 mutex_lock(&dev->mode_config.mutex);
2384
2385 obj = drm_mode_object_find(dev, out_resp->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2386 if (!obj) {
2387 goto out;
2388 }
2389 connector = obj_to_connector(obj);
2390
2391 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2392 if (connector->property_ids[i] == out_resp->prop_id)
2393 break;
2394 }
2395
2396 if (i == DRM_CONNECTOR_MAX_PROPERTY) {
2397 goto out;
2398 }
2399
2400 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2401 if (!obj) {
2402 goto out;
2403 }
2404 property = obj_to_property(obj);
2405
2406 if (property->flags & DRM_MODE_PROP_IMMUTABLE)
2407 goto out;
2408
2409 if (property->flags & DRM_MODE_PROP_RANGE) {
2410 if (out_resp->value < property->values[0])
2411 goto out;
2412
2413 if (out_resp->value > property->values[1])
2414 goto out;
2415 } else {
2416 int found = 0;
2417 for (i = 0; i < property->num_values; i++) {
2418 if (property->values[i] == out_resp->value) {
2419 found = 1;
2420 break;
2421 }
2422 }
2423 if (!found) {
2424 goto out;
2425 }
2426 }
2427
2428 /* Do DPMS ourselves */
2429 if (property == connector->dev->mode_config.dpms_property) {
2430 if (connector->funcs->dpms)
2431 (*connector->funcs->dpms)(connector, (int) out_resp->value);
2432 ret = 0;
2433 } else if (connector->funcs->set_property)
2434 ret = connector->funcs->set_property(connector, property, out_resp->value);
2435
2436 /* store the property value if successful */
2437 if (!ret)
2438 drm_connector_property_set_value(connector, property, out_resp->value);
2439 out:
2440 mutex_unlock(&dev->mode_config.mutex);
2441 return ret;
2442 }
2443
2444 int drm_mode_connector_attach_encoder(struct drm_connector *connector,
2445 struct drm_encoder *encoder)
2446 {
2447 int i;
2448
2449 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
2450 if (connector->encoder_ids[i] == 0) {
2451 connector->encoder_ids[i] = encoder->base.id;
2452 return 0;
2453 }
2454 }
2455 return -ENOMEM;
2456 }
2457 EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
2458
2459 void drm_mode_connector_detach_encoder(struct drm_connector *connector,
2460 struct drm_encoder *encoder)
2461 {
2462 int i;
2463 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
2464 if (connector->encoder_ids[i] == encoder->base.id) {
2465 connector->encoder_ids[i] = 0;
2466 if (connector->encoder == encoder)
2467 connector->encoder = NULL;
2468 break;
2469 }
2470 }
2471 }
2472 EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
2473
2474 bool drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
2475 int gamma_size)
2476 {
2477 crtc->gamma_size = gamma_size;
2478
2479 crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
2480 if (!crtc->gamma_store) {
2481 crtc->gamma_size = 0;
2482 return false;
2483 }
2484
2485 return true;
2486 }
2487 EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
2488
2489 int drm_mode_gamma_set_ioctl(struct drm_device *dev,
2490 void *data, struct drm_file *file_priv)
2491 {
2492 struct drm_mode_crtc_lut *crtc_lut = data;
2493 struct drm_mode_object *obj;
2494 struct drm_crtc *crtc;
2495 void *r_base, *g_base, *b_base;
2496 int size;
2497 int ret = 0;
2498
2499 mutex_lock(&dev->mode_config.mutex);
2500 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
2501 if (!obj) {
2502 ret = -EINVAL;
2503 goto out;
2504 }
2505 crtc = obj_to_crtc(obj);
2506
2507 /* memcpy into gamma store */
2508 if (crtc_lut->gamma_size != crtc->gamma_size) {
2509 ret = -EINVAL;
2510 goto out;
2511 }
2512
2513 size = crtc_lut->gamma_size * (sizeof(uint16_t));
2514 r_base = crtc->gamma_store;
2515 if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
2516 ret = -EFAULT;
2517 goto out;
2518 }
2519
2520 g_base = r_base + size;
2521 if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
2522 ret = -EFAULT;
2523 goto out;
2524 }
2525
2526 b_base = g_base + size;
2527 if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
2528 ret = -EFAULT;
2529 goto out;
2530 }
2531
2532 crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, crtc->gamma_size);
2533
2534 out:
2535 mutex_unlock(&dev->mode_config.mutex);
2536 return ret;
2537
2538 }
2539
2540 int drm_mode_gamma_get_ioctl(struct drm_device *dev,
2541 void *data, struct drm_file *file_priv)
2542 {
2543 struct drm_mode_crtc_lut *crtc_lut = data;
2544 struct drm_mode_object *obj;
2545 struct drm_crtc *crtc;
2546 void *r_base, *g_base, *b_base;
2547 int size;
2548 int ret = 0;
2549
2550 mutex_lock(&dev->mode_config.mutex);
2551 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
2552 if (!obj) {
2553 ret = -EINVAL;
2554 goto out;
2555 }
2556 crtc = obj_to_crtc(obj);
2557
2558 /* memcpy into gamma store */
2559 if (crtc_lut->gamma_size != crtc->gamma_size) {
2560 ret = -EINVAL;
2561 goto out;
2562 }
2563
2564 size = crtc_lut->gamma_size * (sizeof(uint16_t));
2565 r_base = crtc->gamma_store;
2566 if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
2567 ret = -EFAULT;
2568 goto out;
2569 }
2570
2571 g_base = r_base + size;
2572 if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
2573 ret = -EFAULT;
2574 goto out;
2575 }
2576
2577 b_base = g_base + size;
2578 if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
2579 ret = -EFAULT;
2580 goto out;
2581 }
2582 out:
2583 mutex_unlock(&dev->mode_config.mutex);
2584 return ret;
2585 }
2586
2587 int drm_mode_page_flip_ioctl(struct drm_device *dev,
2588 void *data, struct drm_file *file_priv)
2589 {
2590 struct drm_mode_crtc_page_flip *page_flip = data;
2591 struct drm_mode_object *obj;
2592 struct drm_crtc *crtc;
2593 struct drm_framebuffer *fb;
2594 struct drm_pending_vblank_event *e = NULL;
2595 unsigned long flags;
2596 int ret = -EINVAL;
2597
2598 if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
2599 page_flip->reserved != 0)
2600 return -EINVAL;
2601
2602 mutex_lock(&dev->mode_config.mutex);
2603 obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC);
2604 if (!obj)
2605 goto out;
2606 crtc = obj_to_crtc(obj);
2607
2608 if (crtc->funcs->page_flip == NULL)
2609 goto out;
2610
2611 obj = drm_mode_object_find(dev, page_flip->fb_id, DRM_MODE_OBJECT_FB);
2612 if (!obj)
2613 goto out;
2614 fb = obj_to_fb(obj);
2615
2616 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) {
2617 ret = -ENOMEM;
2618 spin_lock_irqsave(&dev->event_lock, flags);
2619 if (file_priv->event_space < sizeof e->event) {
2620 spin_unlock_irqrestore(&dev->event_lock, flags);
2621 goto out;
2622 }
2623 file_priv->event_space -= sizeof e->event;
2624 spin_unlock_irqrestore(&dev->event_lock, flags);
2625
2626 e = kzalloc(sizeof *e, GFP_KERNEL);
2627 if (e == NULL) {
2628 spin_lock_irqsave(&dev->event_lock, flags);
2629 file_priv->event_space += sizeof e->event;
2630 spin_unlock_irqrestore(&dev->event_lock, flags);
2631 goto out;
2632 }
2633
2634 e->event.base.type = DRM_EVENT_FLIP_COMPLETE;
2635 e->event.base.length = sizeof e->event;
2636 e->event.user_data = page_flip->user_data;
2637 e->base.event = &e->event.base;
2638 e->base.file_priv = file_priv;
2639 e->base.destroy =
2640 (void (*) (struct drm_pending_event *)) kfree;
2641 }
2642
2643 ret = crtc->funcs->page_flip(crtc, fb, e);
2644 if (ret) {
2645 spin_lock_irqsave(&dev->event_lock, flags);
2646 file_priv->event_space += sizeof e->event;
2647 spin_unlock_irqrestore(&dev->event_lock, flags);
2648 kfree(e);
2649 }
2650
2651 out:
2652 mutex_unlock(&dev->mode_config.mutex);
2653 return ret;
2654 }
linux 2.6 git repository for openrd