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1123 serge 1
/*
2
 * Copyright (c) 2006-2008 Intel Corporation
3
 * Copyright (c) 2007 Dave Airlie 
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 
29
 *      Dave Airlie 
30
 *      Jesse Barnes 
31
 */
1179 serge 32
#include 
1123 serge 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
{
1179 serge 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" },
1123 serge 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 */
1179 serge 111
	{ DRM_MODE_SUBCONNECTOR_SCART,     "SCART"     }, /* TV-out */
1123 serge 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 */
1179 serge 122
	{ DRM_MODE_SUBCONNECTOR_SCART,     "SCART"     }, /* TV-out */
1123 serge 123
};
124
 
125
DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
126
		 drm_tv_subconnector_enum_list)
127
 
1321 serge 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
 
1123 serge 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 },
1179 serge 160
	{ DRM_MODE_CONNECTOR_TV, "TV", 0 },
1404 serge 161
	{ DRM_MODE_CONNECTOR_eDP, "Embedded DisplayPort", 0 },
1123 serge 162
};
163
 
164
static struct drm_prop_enum_list drm_encoder_enum_list[] =
165
{	{ DRM_MODE_ENCODER_NONE, "None" },
166
	{ DRM_MODE_ENCODER_DAC, "DAC" },
167
	{ DRM_MODE_ENCODER_TMDS, "TMDS" },
168
	{ DRM_MODE_ENCODER_LVDS, "LVDS" },
169
	{ DRM_MODE_ENCODER_TVDAC, "TV" },
170
};
171
 
172
char *drm_get_encoder_name(struct drm_encoder *encoder)
173
{
174
	static char buf[32];
175
 
176
	snprintf(buf, 32, "%s-%d",
177
		 drm_encoder_enum_list[encoder->encoder_type].name,
178
		 encoder->base.id);
179
	return buf;
180
}
1179 serge 181
EXPORT_SYMBOL(drm_get_encoder_name);
1123 serge 182
 
183
char *drm_get_connector_name(struct drm_connector *connector)
184
{
185
	static char buf[32];
186
 
187
	snprintf(buf, 32, "%s-%d",
188
		 drm_connector_enum_list[connector->connector_type].name,
189
		 connector->connector_type_id);
190
	return buf;
191
}
192
EXPORT_SYMBOL(drm_get_connector_name);
193
 
194
char *drm_get_connector_status_name(enum drm_connector_status status)
195
{
196
	if (status == connector_status_connected)
197
		return "connected";
198
	else if (status == connector_status_disconnected)
199
		return "disconnected";
200
	else
201
		return "unknown";
202
}
203
 
204
/**
205
 * drm_mode_object_get - allocate a new identifier
206
 * @dev: DRM device
207
 * @ptr: object pointer, used to generate unique ID
208
 * @type: object type
209
 *
210
 * LOCKING:
211
 *
212
 * Create a unique identifier based on @ptr in @dev's identifier space.  Used
213
 * for tracking modes, CRTCs and connectors.
214
 *
215
 * RETURNS:
216
 * New unique (relative to other objects in @dev) integer identifier for the
217
 * object.
218
 */
219
static int drm_mode_object_get(struct drm_device *dev,
220
			       struct drm_mode_object *obj, uint32_t obj_type)
221
{
222
	int new_id = 0;
223
	int ret;
224
 
225
again:
226
	if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) {
227
		DRM_ERROR("Ran out memory getting a mode number\n");
228
		return -EINVAL;
229
	}
230
 
1179 serge 231
	mutex_lock(&dev->mode_config.idr_mutex);
1123 serge 232
	ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id);
1179 serge 233
	mutex_unlock(&dev->mode_config.idr_mutex);
1123 serge 234
	if (ret == -EAGAIN)
1179 serge 235
        goto again;
1123 serge 236
 
237
	obj->id = new_id;
238
	obj->type = obj_type;
1179 serge 239
    return 0;
1123 serge 240
}
241
 
242
/**
243
 * drm_mode_object_put - free an identifer
244
 * @dev: DRM device
245
 * @id: ID to free
246
 *
247
 * LOCKING:
248
 * Caller must hold DRM mode_config lock.
249
 *
250
 * Free @id from @dev's unique identifier pool.
251
 */
252
static void drm_mode_object_put(struct drm_device *dev,
253
				struct drm_mode_object *object)
254
{
1179 serge 255
	mutex_lock(&dev->mode_config.idr_mutex);
1123 serge 256
	idr_remove(&dev->mode_config.crtc_idr, object->id);
1179 serge 257
	mutex_unlock(&dev->mode_config.idr_mutex);
1123 serge 258
}
259
 
1321 serge 260
struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
261
		uint32_t id, uint32_t type)
1123 serge 262
{
263
	struct drm_mode_object *obj = NULL;
264
 
1179 serge 265
	mutex_lock(&dev->mode_config.idr_mutex);
1123 serge 266
	obj = idr_find(&dev->mode_config.crtc_idr, id);
267
	if (!obj || (obj->type != type) || (obj->id != id))
268
		obj = NULL;
1179 serge 269
	mutex_unlock(&dev->mode_config.idr_mutex);
1123 serge 270
 
271
	return obj;
272
}
273
EXPORT_SYMBOL(drm_mode_object_find);
274
 
275
/**
276
 * drm_framebuffer_init - initialize a framebuffer
277
 * @dev: DRM device
278
 *
279
 * LOCKING:
280
 * Caller must hold mode config lock.
281
 *
282
 * Allocates an ID for the framebuffer's parent mode object, sets its mode
283
 * functions & device file and adds it to the master fd list.
284
 *
285
 * RETURNS:
1321 serge 286
 * Zero on success, error code on failure.
1123 serge 287
 */
288
int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
289
			 const struct drm_framebuffer_funcs *funcs)
290
{
291
	int ret;
1179 serge 292
 
1123 serge 293
	ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
294
	if (ret) {
295
		return ret;
296
	}
297
 
298
	fb->dev = dev;
299
	fb->funcs = funcs;
300
	dev->mode_config.num_fb++;
301
	list_add(&fb->head, &dev->mode_config.fb_list);
302
 
303
	return 0;
304
}
305
EXPORT_SYMBOL(drm_framebuffer_init);
306
 
307
/**
308
 * drm_framebuffer_cleanup - remove a framebuffer object
309
 * @fb: framebuffer to remove
310
 *
311
 * LOCKING:
312
 * Caller must hold mode config lock.
313
 *
314
 * Scans all the CRTCs in @dev's mode_config.  If they're using @fb, removes
315
 * it, setting it to NULL.
316
 */
317
void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
318
{
319
	struct drm_device *dev = fb->dev;
320
	struct drm_crtc *crtc;
1179 serge 321
	struct drm_mode_set set;
322
	int ret;
1123 serge 323
 
324
	/* remove from any CRTC */
325
	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
1179 serge 326
		if (crtc->fb == fb) {
327
			/* should turn off the crtc */
328
			memset(&set, 0, sizeof(struct drm_mode_set));
329
			set.crtc = crtc;
330
			set.fb = NULL;
331
			ret = crtc->funcs->set_config(&set);
332
			if (ret)
333
				DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
334
	   }
1123 serge 335
	}
336
 
337
	drm_mode_object_put(dev, &fb->base);
338
	list_del(&fb->head);
339
	dev->mode_config.num_fb--;
340
}
341
EXPORT_SYMBOL(drm_framebuffer_cleanup);
342
 
343
/**
344
 * drm_crtc_init - Initialise a new CRTC object
345
 * @dev: DRM device
346
 * @crtc: CRTC object to init
347
 * @funcs: callbacks for the new CRTC
348
 *
349
 * LOCKING:
350
 * Caller must hold mode config lock.
351
 *
352
 * Inits a new object created as base part of an driver crtc object.
353
 */
354
void drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
355
		   const struct drm_crtc_funcs *funcs)
356
{
357
	crtc->dev = dev;
358
	crtc->funcs = funcs;
359
 
1179 serge 360
	mutex_lock(&dev->mode_config.mutex);
1123 serge 361
	drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
362
 
363
	list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
364
	dev->mode_config.num_crtc++;
1179 serge 365
	mutex_unlock(&dev->mode_config.mutex);
1123 serge 366
}
367
EXPORT_SYMBOL(drm_crtc_init);
368
 
369
/**
370
 * drm_crtc_cleanup - Cleans up the core crtc usage.
371
 * @crtc: CRTC to cleanup
372
 *
373
 * LOCKING:
374
 * Caller must hold mode config lock.
375
 *
376
 * Cleanup @crtc. Removes from drm modesetting space
377
 * does NOT free object, caller does that.
378
 */
379
void drm_crtc_cleanup(struct drm_crtc *crtc)
380
{
381
	struct drm_device *dev = crtc->dev;
382
 
383
	if (crtc->gamma_store) {
384
		kfree(crtc->gamma_store);
385
		crtc->gamma_store = NULL;
386
	}
387
 
388
	drm_mode_object_put(dev, &crtc->base);
389
	list_del(&crtc->head);
390
	dev->mode_config.num_crtc--;
391
}
392
EXPORT_SYMBOL(drm_crtc_cleanup);
393
 
394
/**
395
 * drm_mode_probed_add - add a mode to a connector's probed mode list
396
 * @connector: connector the new mode
397
 * @mode: mode data
398
 *
399
 * LOCKING:
400
 * Caller must hold mode config lock.
401
 *
402
 * Add @mode to @connector's mode list for later use.
403
 */
404
void drm_mode_probed_add(struct drm_connector *connector,
405
			 struct drm_display_mode *mode)
406
{
407
	list_add(&mode->head, &connector->probed_modes);
408
}
409
EXPORT_SYMBOL(drm_mode_probed_add);
410
 
411
/**
412
 * drm_mode_remove - remove and free a mode
413
 * @connector: connector list to modify
414
 * @mode: mode to remove
415
 *
416
 * LOCKING:
417
 * Caller must hold mode config lock.
418
 *
419
 * Remove @mode from @connector's mode list, then free it.
420
 */
421
void drm_mode_remove(struct drm_connector *connector,
422
		     struct drm_display_mode *mode)
423
{
424
	list_del(&mode->head);
425
	kfree(mode);
426
}
427
EXPORT_SYMBOL(drm_mode_remove);
428
 
429
/**
430
 * drm_connector_init - Init a preallocated connector
431
 * @dev: DRM device
432
 * @connector: the connector to init
433
 * @funcs: callbacks for this connector
434
 * @name: user visible name of the connector
435
 *
436
 * LOCKING:
437
 * Caller must hold @dev's mode_config lock.
438
 *
439
 * Initialises a preallocated connector. Connectors should be
440
 * subclassed as part of driver connector objects.
441
 */
442
void drm_connector_init(struct drm_device *dev,
443
		     struct drm_connector *connector,
444
		     const struct drm_connector_funcs *funcs,
445
		     int connector_type)
446
{
1179 serge 447
	mutex_lock(&dev->mode_config.mutex);
1123 serge 448
 
449
	connector->dev = dev;
450
	connector->funcs = funcs;
451
	drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
452
	connector->connector_type = connector_type;
453
	connector->connector_type_id =
454
		++drm_connector_enum_list[connector_type].count; /* TODO */
455
	INIT_LIST_HEAD(&connector->user_modes);
456
	INIT_LIST_HEAD(&connector->probed_modes);
457
	INIT_LIST_HEAD(&connector->modes);
458
	connector->edid_blob_ptr = NULL;
459
 
460
	list_add_tail(&connector->head, &dev->mode_config.connector_list);
461
	dev->mode_config.num_connector++;
462
 
463
	drm_connector_attach_property(connector,
464
				      dev->mode_config.edid_property, 0);
465
 
466
	drm_connector_attach_property(connector,
467
				      dev->mode_config.dpms_property, 0);
468
 
1179 serge 469
	mutex_unlock(&dev->mode_config.mutex);
1123 serge 470
}
471
EXPORT_SYMBOL(drm_connector_init);
472
 
473
/**
474
 * drm_connector_cleanup - cleans up an initialised connector
475
 * @connector: connector to cleanup
476
 *
477
 * LOCKING:
478
 * Caller must hold @dev's mode_config lock.
479
 *
480
 * Cleans up the connector but doesn't free the object.
481
 */
482
void drm_connector_cleanup(struct drm_connector *connector)
483
{
484
	struct drm_device *dev = connector->dev;
485
	struct drm_display_mode *mode, *t;
486
 
487
	list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
488
		drm_mode_remove(connector, mode);
489
 
490
	list_for_each_entry_safe(mode, t, &connector->modes, head)
491
		drm_mode_remove(connector, mode);
492
 
493
	list_for_each_entry_safe(mode, t, &connector->user_modes, head)
494
		drm_mode_remove(connector, mode);
495
 
1221 serge 496
	kfree(connector->fb_helper_private);
1179 serge 497
	mutex_lock(&dev->mode_config.mutex);
1123 serge 498
	drm_mode_object_put(dev, &connector->base);
499
	list_del(&connector->head);
1179 serge 500
	mutex_unlock(&dev->mode_config.mutex);
1123 serge 501
}
502
EXPORT_SYMBOL(drm_connector_cleanup);
503
 
504
void drm_encoder_init(struct drm_device *dev,
505
		      struct drm_encoder *encoder,
506
		      const struct drm_encoder_funcs *funcs,
507
		      int encoder_type)
508
{
1179 serge 509
	mutex_lock(&dev->mode_config.mutex);
1123 serge 510
 
511
	encoder->dev = dev;
512
 
513
	drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
514
	encoder->encoder_type = encoder_type;
515
	encoder->funcs = funcs;
516
 
517
	list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
518
	dev->mode_config.num_encoder++;
519
 
1179 serge 520
	mutex_unlock(&dev->mode_config.mutex);
1123 serge 521
}
522
EXPORT_SYMBOL(drm_encoder_init);
523
 
524
void drm_encoder_cleanup(struct drm_encoder *encoder)
525
{
526
	struct drm_device *dev = encoder->dev;
1179 serge 527
	mutex_lock(&dev->mode_config.mutex);
1123 serge 528
	drm_mode_object_put(dev, &encoder->base);
529
	list_del(&encoder->head);
1179 serge 530
	mutex_unlock(&dev->mode_config.mutex);
1123 serge 531
}
532
EXPORT_SYMBOL(drm_encoder_cleanup);
533
 
534
/**
535
 * drm_mode_create - create a new display mode
536
 * @dev: DRM device
537
 *
538
 * LOCKING:
539
 * Caller must hold DRM mode_config lock.
540
 *
541
 * Create a new drm_display_mode, give it an ID, and return it.
542
 *
543
 * RETURNS:
544
 * Pointer to new mode on success, NULL on error.
545
 */
546
struct drm_display_mode *drm_mode_create(struct drm_device *dev)
547
{
548
	struct drm_display_mode *nmode;
549
 
550
	nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
551
	if (!nmode)
552
		return NULL;
553
 
554
	drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE);
555
	return nmode;
556
}
557
EXPORT_SYMBOL(drm_mode_create);
558
 
559
/**
560
 * drm_mode_destroy - remove a mode
561
 * @dev: DRM device
562
 * @mode: mode to remove
563
 *
564
 * LOCKING:
565
 * Caller must hold mode config lock.
566
 *
567
 * Free @mode's unique identifier, then free it.
568
 */
569
void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
570
{
571
	drm_mode_object_put(dev, &mode->base);
572
 
573
	kfree(mode);
574
}
575
EXPORT_SYMBOL(drm_mode_destroy);
576
 
577
static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
578
{
579
	struct drm_property *edid;
580
	struct drm_property *dpms;
581
	int i;
582
 
583
	/*
584
	 * Standard properties (apply to all connectors)
585
	 */
586
	edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
587
				   DRM_MODE_PROP_IMMUTABLE,
588
				   "EDID", 0);
589
	dev->mode_config.edid_property = edid;
590
 
591
	dpms = drm_property_create(dev, DRM_MODE_PROP_ENUM,
592
				   "DPMS", ARRAY_SIZE(drm_dpms_enum_list));
593
	for (i = 0; i < ARRAY_SIZE(drm_dpms_enum_list); i++)
594
		drm_property_add_enum(dpms, i, drm_dpms_enum_list[i].type,
595
				      drm_dpms_enum_list[i].name);
596
	dev->mode_config.dpms_property = dpms;
597
 
598
	return 0;
599
}
600
 
601
/**
602
 * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
603
 * @dev: DRM device
604
 *
605
 * Called by a driver the first time a DVI-I connector is made.
606
 */
607
int drm_mode_create_dvi_i_properties(struct drm_device *dev)
608
{
609
	struct drm_property *dvi_i_selector;
610
	struct drm_property *dvi_i_subconnector;
611
	int i;
612
 
613
	if (dev->mode_config.dvi_i_select_subconnector_property)
614
		return 0;
615
 
616
	dvi_i_selector =
617
		drm_property_create(dev, DRM_MODE_PROP_ENUM,
618
				    "select subconnector",
619
				    ARRAY_SIZE(drm_dvi_i_select_enum_list));
620
	for (i = 0; i < ARRAY_SIZE(drm_dvi_i_select_enum_list); i++)
621
		drm_property_add_enum(dvi_i_selector, i,
622
				      drm_dvi_i_select_enum_list[i].type,
623
				      drm_dvi_i_select_enum_list[i].name);
624
	dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
625
 
626
	dvi_i_subconnector =
627
		drm_property_create(dev, DRM_MODE_PROP_ENUM |
628
				    DRM_MODE_PROP_IMMUTABLE,
629
				    "subconnector",
630
				    ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
631
	for (i = 0; i < ARRAY_SIZE(drm_dvi_i_subconnector_enum_list); i++)
632
		drm_property_add_enum(dvi_i_subconnector, i,
633
				      drm_dvi_i_subconnector_enum_list[i].type,
634
				      drm_dvi_i_subconnector_enum_list[i].name);
635
	dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
636
 
637
	return 0;
638
}
639
EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
640
 
641
/**
642
 * drm_create_tv_properties - create TV specific connector properties
643
 * @dev: DRM device
644
 * @num_modes: number of different TV formats (modes) supported
645
 * @modes: array of pointers to strings containing name of each format
646
 *
647
 * Called by a driver's TV initialization routine, this function creates
648
 * the TV specific connector properties for a given device.  Caller is
649
 * responsible for allocating a list of format names and passing them to
650
 * this routine.
651
 */
652
int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
653
				  char *modes[])
654
{
655
	struct drm_property *tv_selector;
656
	struct drm_property *tv_subconnector;
657
	int i;
658
 
659
	if (dev->mode_config.tv_select_subconnector_property)
660
		return 0;
661
 
662
	/*
663
	 * Basic connector properties
664
	 */
665
	tv_selector = drm_property_create(dev, DRM_MODE_PROP_ENUM,
666
					  "select subconnector",
667
					  ARRAY_SIZE(drm_tv_select_enum_list));
668
	for (i = 0; i < ARRAY_SIZE(drm_tv_select_enum_list); i++)
669
		drm_property_add_enum(tv_selector, i,
670
				      drm_tv_select_enum_list[i].type,
671
				      drm_tv_select_enum_list[i].name);
672
	dev->mode_config.tv_select_subconnector_property = tv_selector;
673
 
674
	tv_subconnector =
675
		drm_property_create(dev, DRM_MODE_PROP_ENUM |
676
				    DRM_MODE_PROP_IMMUTABLE, "subconnector",
677
				    ARRAY_SIZE(drm_tv_subconnector_enum_list));
678
	for (i = 0; i < ARRAY_SIZE(drm_tv_subconnector_enum_list); i++)
679
		drm_property_add_enum(tv_subconnector, i,
680
				      drm_tv_subconnector_enum_list[i].type,
681
				      drm_tv_subconnector_enum_list[i].name);
682
	dev->mode_config.tv_subconnector_property = tv_subconnector;
683
 
684
	/*
685
	 * Other, TV specific properties: margins & TV modes.
686
	 */
687
	dev->mode_config.tv_left_margin_property =
688
		drm_property_create(dev, DRM_MODE_PROP_RANGE,
689
				    "left margin", 2);
690
	dev->mode_config.tv_left_margin_property->values[0] = 0;
691
	dev->mode_config.tv_left_margin_property->values[1] = 100;
692
 
693
	dev->mode_config.tv_right_margin_property =
694
		drm_property_create(dev, DRM_MODE_PROP_RANGE,
695
				    "right margin", 2);
696
	dev->mode_config.tv_right_margin_property->values[0] = 0;
697
	dev->mode_config.tv_right_margin_property->values[1] = 100;
698
 
699
	dev->mode_config.tv_top_margin_property =
700
		drm_property_create(dev, DRM_MODE_PROP_RANGE,
701
				    "top margin", 2);
702
	dev->mode_config.tv_top_margin_property->values[0] = 0;
703
	dev->mode_config.tv_top_margin_property->values[1] = 100;
704
 
705
	dev->mode_config.tv_bottom_margin_property =
706
		drm_property_create(dev, DRM_MODE_PROP_RANGE,
707
				    "bottom margin", 2);
708
	dev->mode_config.tv_bottom_margin_property->values[0] = 0;
709
	dev->mode_config.tv_bottom_margin_property->values[1] = 100;
710
 
711
	dev->mode_config.tv_mode_property =
712
		drm_property_create(dev, DRM_MODE_PROP_ENUM,
713
				    "mode", num_modes);
714
	for (i = 0; i < num_modes; i++)
715
		drm_property_add_enum(dev->mode_config.tv_mode_property, i,
716
				      i, modes[i]);
717
 
1179 serge 718
	dev->mode_config.tv_brightness_property =
719
		drm_property_create(dev, DRM_MODE_PROP_RANGE,
720
				    "brightness", 2);
721
	dev->mode_config.tv_brightness_property->values[0] = 0;
722
	dev->mode_config.tv_brightness_property->values[1] = 100;
723
 
724
	dev->mode_config.tv_contrast_property =
725
		drm_property_create(dev, DRM_MODE_PROP_RANGE,
726
				    "contrast", 2);
727
	dev->mode_config.tv_contrast_property->values[0] = 0;
728
	dev->mode_config.tv_contrast_property->values[1] = 100;
729
 
730
	dev->mode_config.tv_flicker_reduction_property =
731
		drm_property_create(dev, DRM_MODE_PROP_RANGE,
732
				    "flicker reduction", 2);
733
	dev->mode_config.tv_flicker_reduction_property->values[0] = 0;
734
	dev->mode_config.tv_flicker_reduction_property->values[1] = 100;
735
 
736
	dev->mode_config.tv_overscan_property =
737
		drm_property_create(dev, DRM_MODE_PROP_RANGE,
738
				    "overscan", 2);
739
	dev->mode_config.tv_overscan_property->values[0] = 0;
740
	dev->mode_config.tv_overscan_property->values[1] = 100;
741
 
742
	dev->mode_config.tv_saturation_property =
743
		drm_property_create(dev, DRM_MODE_PROP_RANGE,
744
				    "saturation", 2);
745
	dev->mode_config.tv_saturation_property->values[0] = 0;
746
	dev->mode_config.tv_saturation_property->values[1] = 100;
747
 
748
	dev->mode_config.tv_hue_property =
749
		drm_property_create(dev, DRM_MODE_PROP_RANGE,
750
				    "hue", 2);
751
	dev->mode_config.tv_hue_property->values[0] = 0;
752
	dev->mode_config.tv_hue_property->values[1] = 100;
753
 
1123 serge 754
	return 0;
755
}
756
EXPORT_SYMBOL(drm_mode_create_tv_properties);
757
 
758
/**
759
 * drm_mode_create_scaling_mode_property - create scaling mode property
760
 * @dev: DRM device
761
 *
762
 * Called by a driver the first time it's needed, must be attached to desired
763
 * connectors.
764
 */
765
int drm_mode_create_scaling_mode_property(struct drm_device *dev)
766
{
767
	struct drm_property *scaling_mode;
768
	int i;
769
 
770
	if (dev->mode_config.scaling_mode_property)
771
		return 0;
772
 
773
	scaling_mode =
774
		drm_property_create(dev, DRM_MODE_PROP_ENUM, "scaling mode",
775
				    ARRAY_SIZE(drm_scaling_mode_enum_list));
776
	for (i = 0; i < ARRAY_SIZE(drm_scaling_mode_enum_list); i++)
777
		drm_property_add_enum(scaling_mode, i,
778
				      drm_scaling_mode_enum_list[i].type,
779
				      drm_scaling_mode_enum_list[i].name);
780
 
781
	dev->mode_config.scaling_mode_property = scaling_mode;
782
 
783
	return 0;
784
}
785
EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
786
 
787
/**
788
 * drm_mode_create_dithering_property - create dithering property
789
 * @dev: DRM device
790
 *
791
 * Called by a driver the first time it's needed, must be attached to desired
792
 * connectors.
793
 */
794
int drm_mode_create_dithering_property(struct drm_device *dev)
795
{
796
	struct drm_property *dithering_mode;
797
	int i;
798
 
799
	if (dev->mode_config.dithering_mode_property)
800
		return 0;
801
 
802
	dithering_mode =
803
		drm_property_create(dev, DRM_MODE_PROP_ENUM, "dithering",
804
				    ARRAY_SIZE(drm_dithering_mode_enum_list));
805
	for (i = 0; i < ARRAY_SIZE(drm_dithering_mode_enum_list); i++)
806
		drm_property_add_enum(dithering_mode, i,
807
				      drm_dithering_mode_enum_list[i].type,
808
				      drm_dithering_mode_enum_list[i].name);
809
	dev->mode_config.dithering_mode_property = dithering_mode;
810
 
811
	return 0;
812
}
813
EXPORT_SYMBOL(drm_mode_create_dithering_property);
814
 
815
/**
1321 serge 816
 * drm_mode_create_dirty_property - create dirty property
817
 * @dev: DRM device
818
 *
819
 * Called by a driver the first time it's needed, must be attached to desired
820
 * connectors.
821
 */
822
int drm_mode_create_dirty_info_property(struct drm_device *dev)
823
{
824
	struct drm_property *dirty_info;
825
	int i;
826
 
827
	if (dev->mode_config.dirty_info_property)
828
		return 0;
829
 
830
	dirty_info =
831
		drm_property_create(dev, DRM_MODE_PROP_ENUM |
832
				    DRM_MODE_PROP_IMMUTABLE,
833
				    "dirty",
834
				    ARRAY_SIZE(drm_dirty_info_enum_list));
835
	for (i = 0; i < ARRAY_SIZE(drm_dirty_info_enum_list); i++)
836
		drm_property_add_enum(dirty_info, i,
837
				      drm_dirty_info_enum_list[i].type,
838
				      drm_dirty_info_enum_list[i].name);
839
	dev->mode_config.dirty_info_property = dirty_info;
840
 
841
	return 0;
842
}
843
EXPORT_SYMBOL(drm_mode_create_dirty_info_property);
844
 
845
/**
1123 serge 846
 * drm_mode_config_init - initialize DRM mode_configuration structure
847
 * @dev: DRM device
848
 *
849
 * LOCKING:
850
 * None, should happen single threaded at init time.
851
 *
852
 * Initialize @dev's mode_config structure, used for tracking the graphics
853
 * configuration of @dev.
854
 */
855
void drm_mode_config_init(struct drm_device *dev)
856
{
857
//   mutex_init(&dev->mode_config.mutex);
858
//   mutex_init(&dev->mode_config.idr_mutex);
859
	INIT_LIST_HEAD(&dev->mode_config.fb_list);
860
	INIT_LIST_HEAD(&dev->mode_config.fb_kernel_list);
861
	INIT_LIST_HEAD(&dev->mode_config.crtc_list);
862
	INIT_LIST_HEAD(&dev->mode_config.connector_list);
863
	INIT_LIST_HEAD(&dev->mode_config.encoder_list);
864
	INIT_LIST_HEAD(&dev->mode_config.property_list);
865
	INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
866
	idr_init(&dev->mode_config.crtc_idr);
867
 
1179 serge 868
	mutex_lock(&dev->mode_config.mutex);
1123 serge 869
	drm_mode_create_standard_connector_properties(dev);
1179 serge 870
	mutex_unlock(&dev->mode_config.mutex);
1123 serge 871
 
872
	/* Just to be sure */
873
	dev->mode_config.num_fb = 0;
874
	dev->mode_config.num_connector = 0;
875
	dev->mode_config.num_crtc = 0;
876
	dev->mode_config.num_encoder = 0;
877
}
878
EXPORT_SYMBOL(drm_mode_config_init);
879
 
880
int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
881
{
882
	uint32_t total_objects = 0;
883
 
884
	total_objects += dev->mode_config.num_crtc;
885
	total_objects += dev->mode_config.num_connector;
886
	total_objects += dev->mode_config.num_encoder;
887
 
888
	if (total_objects == 0)
889
		return -EINVAL;
890
 
891
	group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
892
	if (!group->id_list)
893
		return -ENOMEM;
894
 
895
	group->num_crtcs = 0;
896
	group->num_connectors = 0;
897
	group->num_encoders = 0;
898
	return 0;
899
}
900
 
901
int drm_mode_group_init_legacy_group(struct drm_device *dev,
902
				     struct drm_mode_group *group)
903
{
904
	struct drm_crtc *crtc;
905
	struct drm_encoder *encoder;
906
	struct drm_connector *connector;
907
	int ret;
908
 
909
	if ((ret = drm_mode_group_init(dev, group)))
910
		return ret;
911
 
912
	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
913
		group->id_list[group->num_crtcs++] = crtc->base.id;
914
 
915
	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
916
		group->id_list[group->num_crtcs + group->num_encoders++] =
917
		encoder->base.id;
918
 
919
	list_for_each_entry(connector, &dev->mode_config.connector_list, head)
920
		group->id_list[group->num_crtcs + group->num_encoders +
921
			       group->num_connectors++] = connector->base.id;
922
 
923
	return 0;
924
}
925
 
926
/**
927
 * drm_mode_config_cleanup - free up DRM mode_config info
928
 * @dev: DRM device
929
 *
930
 * LOCKING:
931
 * Caller must hold mode config lock.
932
 *
933
 * Free up all the connectors and CRTCs associated with this DRM device, then
934
 * free up the framebuffers and associated buffer objects.
935
 *
936
 * FIXME: cleanup any dangling user buffer objects too
937
 */
938
void drm_mode_config_cleanup(struct drm_device *dev)
939
{
940
	struct drm_connector *connector, *ot;
941
	struct drm_crtc *crtc, *ct;
942
	struct drm_encoder *encoder, *enct;
943
	struct drm_framebuffer *fb, *fbt;
944
	struct drm_property *property, *pt;
945
 
946
	list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
947
				 head) {
948
		encoder->funcs->destroy(encoder);
949
	}
950
 
951
	list_for_each_entry_safe(connector, ot,
952
				 &dev->mode_config.connector_list, head) {
953
		connector->funcs->destroy(connector);
954
	}
955
 
956
	list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
957
				 head) {
958
		drm_property_destroy(dev, property);
959
	}
960
 
961
	list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
962
		fb->funcs->destroy(fb);
963
	}
964
 
965
	list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
966
		crtc->funcs->destroy(crtc);
967
	}
968
 
969
}
970
EXPORT_SYMBOL(drm_mode_config_cleanup);
971
 
972
/**
973
 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
974
 * @out: drm_mode_modeinfo struct to return to the user
975
 * @in: drm_display_mode to use
976
 *
977
 * LOCKING:
978
 * None.
979
 *
980
 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
981
 * the user.
982
 */
983
void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
984
			       struct drm_display_mode *in)
985
{
986
	out->clock = in->clock;
987
	out->hdisplay = in->hdisplay;
988
	out->hsync_start = in->hsync_start;
989
	out->hsync_end = in->hsync_end;
990
	out->htotal = in->htotal;
991
	out->hskew = in->hskew;
992
	out->vdisplay = in->vdisplay;
993
	out->vsync_start = in->vsync_start;
994
	out->vsync_end = in->vsync_end;
995
	out->vtotal = in->vtotal;
996
	out->vscan = in->vscan;
997
	out->vrefresh = in->vrefresh;
998
	out->flags = in->flags;
999
	out->type = in->type;
1000
	strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1001
	out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1002
}
1003
 
1004
/**
1005
 * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
1006
 * @out: drm_display_mode to return to the user
1007
 * @in: drm_mode_modeinfo to use
1008
 *
1009
 * LOCKING:
1010
 * None.
1011
 *
1012
 * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
1013
 * the caller.
1014
 */
1015
void drm_crtc_convert_umode(struct drm_display_mode *out,
1016
			    struct drm_mode_modeinfo *in)
1017
{
1018
	out->clock = in->clock;
1019
	out->hdisplay = in->hdisplay;
1020
	out->hsync_start = in->hsync_start;
1021
	out->hsync_end = in->hsync_end;
1022
	out->htotal = in->htotal;
1023
	out->hskew = in->hskew;
1024
	out->vdisplay = in->vdisplay;
1025
	out->vsync_start = in->vsync_start;
1026
	out->vsync_end = in->vsync_end;
1027
	out->vtotal = in->vtotal;
1028
	out->vscan = in->vscan;
1029
	out->vrefresh = in->vrefresh;
1030
	out->flags = in->flags;
1031
	out->type = in->type;
1032
	strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
1033
	out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
1034
}
1035
 
1036
 
1037
#if 0
1038
/**
1039
 * drm_mode_getresources - get graphics configuration
1040
 * @inode: inode from the ioctl
1041
 * @filp: file * from the ioctl
1042
 * @cmd: cmd from ioctl
1043
 * @arg: arg from ioctl
1044
 *
1045
 * LOCKING:
1046
 * Takes mode config lock.
1047
 *
1048
 * Construct a set of configuration description structures and return
1049
 * them to the user, including CRTC, connector and framebuffer configuration.
1050
 *
1051
 * Called by the user via ioctl.
1052
 *
1053
 * RETURNS:
1054
 * Zero on success, errno on failure.
1055
 */
1056
int drm_mode_getresources(struct drm_device *dev, void *data,
1057
			  struct drm_file *file_priv)
1058
{
1059
	struct drm_mode_card_res *card_res = data;
1060
	struct list_head *lh;
1061
	struct drm_framebuffer *fb;
1062
	struct drm_connector *connector;
1063
	struct drm_crtc *crtc;
1064
	struct drm_encoder *encoder;
1065
	int ret = 0;
1066
	int connector_count = 0;
1067
	int crtc_count = 0;
1068
	int fb_count = 0;
1069
	int encoder_count = 0;
1070
	int copied = 0, i;
1071
	uint32_t __user *fb_id;
1072
	uint32_t __user *crtc_id;
1073
	uint32_t __user *connector_id;
1074
	uint32_t __user *encoder_id;
1075
	struct drm_mode_group *mode_group;
1076
 
1077
	mutex_lock(&dev->mode_config.mutex);
1078
 
1079
	/*
1080
	 * For the non-control nodes we need to limit the list of resources
1081
	 * by IDs in the group list for this node
1082
	 */
1083
	list_for_each(lh, &file_priv->fbs)
1084
		fb_count++;
1085
 
1086
	mode_group = &file_priv->master->minor->mode_group;
1087
	if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1088
 
1089
		list_for_each(lh, &dev->mode_config.crtc_list)
1090
			crtc_count++;
1091
 
1092
		list_for_each(lh, &dev->mode_config.connector_list)
1093
			connector_count++;
1094
 
1095
		list_for_each(lh, &dev->mode_config.encoder_list)
1096
			encoder_count++;
1097
	} else {
1098
 
1099
		crtc_count = mode_group->num_crtcs;
1100
		connector_count = mode_group->num_connectors;
1101
		encoder_count = mode_group->num_encoders;
1102
	}
1103
 
1104
	card_res->max_height = dev->mode_config.max_height;
1105
	card_res->min_height = dev->mode_config.min_height;
1106
	card_res->max_width = dev->mode_config.max_width;
1107
	card_res->min_width = dev->mode_config.min_width;
1108
 
1109
	/* handle this in 4 parts */
1110
	/* FBs */
1111
	if (card_res->count_fbs >= fb_count) {
1112
		copied = 0;
1113
		fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
1114
		list_for_each_entry(fb, &file_priv->fbs, head) {
1115
			if (put_user(fb->base.id, fb_id + copied)) {
1116
				ret = -EFAULT;
1117
				goto out;
1118
			}
1119
			copied++;
1120
		}
1121
	}
1122
	card_res->count_fbs = fb_count;
1123
 
1124
	/* CRTCs */
1125
	if (card_res->count_crtcs >= crtc_count) {
1126
		copied = 0;
1127
		crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
1128
		if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1129
			list_for_each_entry(crtc, &dev->mode_config.crtc_list,
1130
					    head) {
1179 serge 1131
				DRM_DEBUG_KMS("CRTC ID is %d\n", crtc->base.id);
1123 serge 1132
				if (put_user(crtc->base.id, crtc_id + copied)) {
1133
					ret = -EFAULT;
1134
					goto out;
1135
				}
1136
				copied++;
1137
			}
1138
		} else {
1139
			for (i = 0; i < mode_group->num_crtcs; i++) {
1140
				if (put_user(mode_group->id_list[i],
1141
					     crtc_id + copied)) {
1142
					ret = -EFAULT;
1143
					goto out;
1144
				}
1145
				copied++;
1146
			}
1147
		}
1148
	}
1149
	card_res->count_crtcs = crtc_count;
1150
 
1151
	/* Encoders */
1152
	if (card_res->count_encoders >= encoder_count) {
1153
		copied = 0;
1154
		encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
1155
		if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1156
			list_for_each_entry(encoder,
1157
					    &dev->mode_config.encoder_list,
1158
					    head) {
1179 serge 1159
				DRM_DEBUG_KMS("ENCODER ID is %d\n",
1123 serge 1160
					  encoder->base.id);
1161
				if (put_user(encoder->base.id, encoder_id +
1162
					     copied)) {
1163
					ret = -EFAULT;
1164
					goto out;
1165
				}
1166
				copied++;
1167
			}
1168
		} else {
1169
			for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
1170
				if (put_user(mode_group->id_list[i],
1171
					     encoder_id + copied)) {
1172
					ret = -EFAULT;
1173
					goto out;
1174
				}
1175
				copied++;
1176
			}
1177
 
1178
		}
1179
	}
1180
	card_res->count_encoders = encoder_count;
1181
 
1182
	/* Connectors */
1183
	if (card_res->count_connectors >= connector_count) {
1184
		copied = 0;
1185
		connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
1186
		if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1187
			list_for_each_entry(connector,
1188
					    &dev->mode_config.connector_list,
1189
					    head) {
1179 serge 1190
				DRM_DEBUG_KMS("CONNECTOR ID is %d\n",
1123 serge 1191
					  connector->base.id);
1192
				if (put_user(connector->base.id,
1193
					     connector_id + copied)) {
1194
					ret = -EFAULT;
1195
					goto out;
1196
				}
1197
				copied++;
1198
			}
1199
		} else {
1200
			int start = mode_group->num_crtcs +
1201
				mode_group->num_encoders;
1202
			for (i = start; i < start + mode_group->num_connectors; i++) {
1203
				if (put_user(mode_group->id_list[i],
1204
					     connector_id + copied)) {
1205
					ret = -EFAULT;
1206
					goto out;
1207
				}
1208
				copied++;
1209
			}
1210
		}
1211
	}
1212
	card_res->count_connectors = connector_count;
1213
 
1179 serge 1214
	DRM_DEBUG_KMS("Counted %d %d %d\n", card_res->count_crtcs,
1123 serge 1215
		  card_res->count_connectors, card_res->count_encoders);
1216
 
1217
out:
1218
	mutex_unlock(&dev->mode_config.mutex);
1219
	return ret;
1220
}
1221
 
1222
/**
1223
 * drm_mode_getcrtc - get CRTC configuration
1224
 * @inode: inode from the ioctl
1225
 * @filp: file * from the ioctl
1226
 * @cmd: cmd from ioctl
1227
 * @arg: arg from ioctl
1228
 *
1229
 * LOCKING:
1230
 * Caller? (FIXME)
1231
 *
1232
 * Construct a CRTC configuration structure to return to the user.
1233
 *
1234
 * Called by the user via ioctl.
1235
 *
1236
 * RETURNS:
1237
 * Zero on success, errno on failure.
1238
 */
1239
int drm_mode_getcrtc(struct drm_device *dev,
1240
		     void *data, struct drm_file *file_priv)
1241
{
1242
	struct drm_mode_crtc *crtc_resp = data;
1243
	struct drm_crtc *crtc;
1244
	struct drm_mode_object *obj;
1245
	int ret = 0;
1246
 
1247
	mutex_lock(&dev->mode_config.mutex);
1248
 
1249
	obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
1250
				   DRM_MODE_OBJECT_CRTC);
1251
	if (!obj) {
1252
		ret = -EINVAL;
1253
		goto out;
1254
	}
1255
	crtc = obj_to_crtc(obj);
1256
 
1257
	crtc_resp->x = crtc->x;
1258
	crtc_resp->y = crtc->y;
1259
	crtc_resp->gamma_size = crtc->gamma_size;
1260
	if (crtc->fb)
1261
		crtc_resp->fb_id = crtc->fb->base.id;
1262
	else
1263
		crtc_resp->fb_id = 0;
1264
 
1265
	if (crtc->enabled) {
1266
 
1267
		drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
1268
		crtc_resp->mode_valid = 1;
1269
 
1270
	} else {
1271
		crtc_resp->mode_valid = 0;
1272
	}
1273
 
1274
out:
1275
	mutex_unlock(&dev->mode_config.mutex);
1276
	return ret;
1277
}
1278
 
1279
/**
1280
 * drm_mode_getconnector - get connector configuration
1281
 * @inode: inode from the ioctl
1282
 * @filp: file * from the ioctl
1283
 * @cmd: cmd from ioctl
1284
 * @arg: arg from ioctl
1285
 *
1286
 * LOCKING:
1287
 * Caller? (FIXME)
1288
 *
1289
 * Construct a connector configuration structure to return to the user.
1290
 *
1291
 * Called by the user via ioctl.
1292
 *
1293
 * RETURNS:
1294
 * Zero on success, errno on failure.
1295
 */
1296
int drm_mode_getconnector(struct drm_device *dev, void *data,
1297
			  struct drm_file *file_priv)
1298
{
1299
	struct drm_mode_get_connector *out_resp = data;
1300
	struct drm_mode_object *obj;
1301
	struct drm_connector *connector;
1302
	struct drm_display_mode *mode;
1303
	int mode_count = 0;
1304
	int props_count = 0;
1305
	int encoders_count = 0;
1306
	int ret = 0;
1307
	int copied = 0;
1308
	int i;
1309
	struct drm_mode_modeinfo u_mode;
1310
	struct drm_mode_modeinfo __user *mode_ptr;
1311
	uint32_t __user *prop_ptr;
1312
	uint64_t __user *prop_values;
1313
	uint32_t __user *encoder_ptr;
1314
 
1315
	memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
1316
 
1179 serge 1317
	DRM_DEBUG_KMS("connector id %d:\n", out_resp->connector_id);
1123 serge 1318
 
1319
	mutex_lock(&dev->mode_config.mutex);
1320
 
1321
	obj = drm_mode_object_find(dev, out_resp->connector_id,
1322
				   DRM_MODE_OBJECT_CONNECTOR);
1323
	if (!obj) {
1324
		ret = -EINVAL;
1325
		goto out;
1326
	}
1327
	connector = obj_to_connector(obj);
1328
 
1329
	for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1330
		if (connector->property_ids[i] != 0) {
1331
			props_count++;
1332
		}
1333
	}
1334
 
1335
	for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1336
		if (connector->encoder_ids[i] != 0) {
1337
			encoders_count++;
1338
		}
1339
	}
1340
 
1341
	if (out_resp->count_modes == 0) {
1342
		connector->funcs->fill_modes(connector,
1343
					     dev->mode_config.max_width,
1344
					     dev->mode_config.max_height);
1345
	}
1346
 
1347
	/* delayed so we get modes regardless of pre-fill_modes state */
1348
	list_for_each_entry(mode, &connector->modes, head)
1349
		mode_count++;
1350
 
1351
	out_resp->connector_id = connector->base.id;
1352
	out_resp->connector_type = connector->connector_type;
1353
	out_resp->connector_type_id = connector->connector_type_id;
1354
	out_resp->mm_width = connector->display_info.width_mm;
1355
	out_resp->mm_height = connector->display_info.height_mm;
1356
	out_resp->subpixel = connector->display_info.subpixel_order;
1357
	out_resp->connection = connector->status;
1358
	if (connector->encoder)
1359
		out_resp->encoder_id = connector->encoder->base.id;
1360
	else
1361
		out_resp->encoder_id = 0;
1362
 
1363
	/*
1364
	 * This ioctl is called twice, once to determine how much space is
1365
	 * needed, and the 2nd time to fill it.
1366
	 */
1367
	if ((out_resp->count_modes >= mode_count) && mode_count) {
1368
		copied = 0;
1369
		mode_ptr = (struct drm_mode_modeinfo *)(unsigned long)out_resp->modes_ptr;
1370
		list_for_each_entry(mode, &connector->modes, head) {
1371
			drm_crtc_convert_to_umode(&u_mode, mode);
1372
			if (copy_to_user(mode_ptr + copied,
1373
					 &u_mode, sizeof(u_mode))) {
1374
				ret = -EFAULT;
1375
				goto out;
1376
			}
1377
			copied++;
1378
		}
1379
	}
1380
	out_resp->count_modes = mode_count;
1381
 
1382
	if ((out_resp->count_props >= props_count) && props_count) {
1383
		copied = 0;
1384
		prop_ptr = (uint32_t *)(unsigned long)(out_resp->props_ptr);
1385
		prop_values = (uint64_t *)(unsigned long)(out_resp->prop_values_ptr);
1386
		for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1387
			if (connector->property_ids[i] != 0) {
1388
				if (put_user(connector->property_ids[i],
1389
					     prop_ptr + copied)) {
1390
					ret = -EFAULT;
1391
					goto out;
1392
				}
1393
 
1394
				if (put_user(connector->property_values[i],
1395
					     prop_values + copied)) {
1396
					ret = -EFAULT;
1397
					goto out;
1398
				}
1399
				copied++;
1400
			}
1401
		}
1402
	}
1403
	out_resp->count_props = props_count;
1404
 
1405
	if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
1406
		copied = 0;
1407
		encoder_ptr = (uint32_t *)(unsigned long)(out_resp->encoders_ptr);
1408
		for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1409
			if (connector->encoder_ids[i] != 0) {
1410
				if (put_user(connector->encoder_ids[i],
1411
					     encoder_ptr + copied)) {
1412
					ret = -EFAULT;
1413
					goto out;
1414
				}
1415
				copied++;
1416
			}
1417
		}
1418
	}
1419
	out_resp->count_encoders = encoders_count;
1420
 
1421
out:
1422
	mutex_unlock(&dev->mode_config.mutex);
1423
	return ret;
1424
}
1425
 
1426
int drm_mode_getencoder(struct drm_device *dev, void *data,
1427
			struct drm_file *file_priv)
1428
{
1429
	struct drm_mode_get_encoder *enc_resp = data;
1430
	struct drm_mode_object *obj;
1431
	struct drm_encoder *encoder;
1432
	int ret = 0;
1433
 
1434
	mutex_lock(&dev->mode_config.mutex);
1435
	obj = drm_mode_object_find(dev, enc_resp->encoder_id,
1436
				   DRM_MODE_OBJECT_ENCODER);
1437
	if (!obj) {
1438
		ret = -EINVAL;
1439
		goto out;
1440
	}
1441
	encoder = obj_to_encoder(obj);
1442
 
1443
	if (encoder->crtc)
1444
		enc_resp->crtc_id = encoder->crtc->base.id;
1445
	else
1446
		enc_resp->crtc_id = 0;
1447
	enc_resp->encoder_type = encoder->encoder_type;
1448
	enc_resp->encoder_id = encoder->base.id;
1449
	enc_resp->possible_crtcs = encoder->possible_crtcs;
1450
	enc_resp->possible_clones = encoder->possible_clones;
1451
 
1452
out:
1453
	mutex_unlock(&dev->mode_config.mutex);
1454
	return ret;
1455
}
1456
 
1457
/**
1458
 * drm_mode_setcrtc - set CRTC configuration
1459
 * @inode: inode from the ioctl
1460
 * @filp: file * from the ioctl
1461
 * @cmd: cmd from ioctl
1462
 * @arg: arg from ioctl
1463
 *
1464
 * LOCKING:
1465
 * Caller? (FIXME)
1466
 *
1467
 * Build a new CRTC configuration based on user request.
1468
 *
1469
 * Called by the user via ioctl.
1470
 *
1471
 * RETURNS:
1472
 * Zero on success, errno on failure.
1473
 */
1474
int drm_mode_setcrtc(struct drm_device *dev, void *data,
1475
		     struct drm_file *file_priv)
1476
{
1477
	struct drm_mode_config *config = &dev->mode_config;
1478
	struct drm_mode_crtc *crtc_req = data;
1479
	struct drm_mode_object *obj;
1480
	struct drm_crtc *crtc, *crtcfb;
1481
	struct drm_connector **connector_set = NULL, *connector;
1482
	struct drm_framebuffer *fb = NULL;
1483
	struct drm_display_mode *mode = NULL;
1484
	struct drm_mode_set set;
1485
	uint32_t __user *set_connectors_ptr;
1486
	int ret = 0;
1487
	int i;
1488
 
1489
	mutex_lock(&dev->mode_config.mutex);
1490
	obj = drm_mode_object_find(dev, crtc_req->crtc_id,
1491
				   DRM_MODE_OBJECT_CRTC);
1492
	if (!obj) {
1179 serge 1493
		DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
1123 serge 1494
		ret = -EINVAL;
1495
		goto out;
1496
	}
1497
	crtc = obj_to_crtc(obj);
1498
 
1499
	if (crtc_req->mode_valid) {
1500
		/* If we have a mode we need a framebuffer. */
1501
		/* If we pass -1, set the mode with the currently bound fb */
1502
		if (crtc_req->fb_id == -1) {
1503
			list_for_each_entry(crtcfb,
1504
					    &dev->mode_config.crtc_list, head) {
1505
				if (crtcfb == crtc) {
1179 serge 1506
					DRM_DEBUG_KMS("Using current fb for "
1507
							"setmode\n");
1123 serge 1508
					fb = crtc->fb;
1509
				}
1510
			}
1511
		} else {
1512
			obj = drm_mode_object_find(dev, crtc_req->fb_id,
1513
						   DRM_MODE_OBJECT_FB);
1514
			if (!obj) {
1179 serge 1515
				DRM_DEBUG_KMS("Unknown FB ID%d\n",
1516
						crtc_req->fb_id);
1123 serge 1517
				ret = -EINVAL;
1518
				goto out;
1519
			}
1520
			fb = obj_to_fb(obj);
1521
		}
1522
 
1523
		mode = drm_mode_create(dev);
1524
		drm_crtc_convert_umode(mode, &crtc_req->mode);
1525
		drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
1526
	}
1527
 
1528
	if (crtc_req->count_connectors == 0 && mode) {
1179 serge 1529
		DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
1123 serge 1530
		ret = -EINVAL;
1531
		goto out;
1532
	}
1533
 
1179 serge 1534
	if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
1535
		DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
1123 serge 1536
			  crtc_req->count_connectors);
1537
		ret = -EINVAL;
1538
		goto out;
1539
	}
1540
 
1541
	if (crtc_req->count_connectors > 0) {
1542
		u32 out_id;
1543
 
1544
		/* Avoid unbounded kernel memory allocation */
1545
		if (crtc_req->count_connectors > config->num_connector) {
1546
			ret = -EINVAL;
1547
			goto out;
1548
		}
1549
 
1550
		connector_set = kmalloc(crtc_req->count_connectors *
1551
					sizeof(struct drm_connector *),
1552
					GFP_KERNEL);
1553
		if (!connector_set) {
1554
			ret = -ENOMEM;
1555
			goto out;
1556
		}
1557
 
1558
		for (i = 0; i < crtc_req->count_connectors; i++) {
1559
			set_connectors_ptr = (uint32_t *)(unsigned long)crtc_req->set_connectors_ptr;
1560
			if (get_user(out_id, &set_connectors_ptr[i])) {
1561
				ret = -EFAULT;
1562
				goto out;
1563
			}
1564
 
1565
			obj = drm_mode_object_find(dev, out_id,
1566
						   DRM_MODE_OBJECT_CONNECTOR);
1567
			if (!obj) {
1179 serge 1568
				DRM_DEBUG_KMS("Connector id %d unknown\n",
1569
						out_id);
1123 serge 1570
				ret = -EINVAL;
1571
				goto out;
1572
			}
1573
			connector = obj_to_connector(obj);
1574
 
1575
			connector_set[i] = connector;
1576
		}
1577
	}
1578
 
1579
	set.crtc = crtc;
1580
	set.x = crtc_req->x;
1581
	set.y = crtc_req->y;
1582
	set.mode = mode;
1583
	set.connectors = connector_set;
1584
	set.num_connectors = crtc_req->count_connectors;
1179 serge 1585
	set.fb = fb;
1123 serge 1586
	ret = crtc->funcs->set_config(&set);
1587
 
1588
out:
1589
	kfree(connector_set);
1590
	mutex_unlock(&dev->mode_config.mutex);
1591
	return ret;
1592
}
1593
 
1594
int drm_mode_cursor_ioctl(struct drm_device *dev,
1595
			void *data, struct drm_file *file_priv)
1596
{
1597
	struct drm_mode_cursor *req = data;
1598
	struct drm_mode_object *obj;
1599
	struct drm_crtc *crtc;
1600
	int ret = 0;
1601
 
1602
	if (!req->flags) {
1603
		DRM_ERROR("no operation set\n");
1604
		return -EINVAL;
1605
	}
1606
 
1607
	mutex_lock(&dev->mode_config.mutex);
1608
	obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
1609
	if (!obj) {
1179 serge 1610
		DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
1123 serge 1611
		ret = -EINVAL;
1612
		goto out;
1613
	}
1614
	crtc = obj_to_crtc(obj);
1615
 
1616
	if (req->flags & DRM_MODE_CURSOR_BO) {
1617
		if (!crtc->funcs->cursor_set) {
1618
			DRM_ERROR("crtc does not support cursor\n");
1619
			ret = -ENXIO;
1620
			goto out;
1621
		}
1622
		/* Turns off the cursor if handle is 0 */
1623
		ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
1624
					      req->width, req->height);
1625
	}
1626
 
1627
	if (req->flags & DRM_MODE_CURSOR_MOVE) {
1628
		if (crtc->funcs->cursor_move) {
1629
			ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
1630
		} else {
1631
			DRM_ERROR("crtc does not support cursor\n");
1632
			ret = -EFAULT;
1633
			goto out;
1634
		}
1635
	}
1636
out:
1637
	mutex_unlock(&dev->mode_config.mutex);
1638
	return ret;
1639
}
1640
 
1641
/**
1642
 * drm_mode_addfb - add an FB to the graphics configuration
1643
 * @inode: inode from the ioctl
1644
 * @filp: file * from the ioctl
1645
 * @cmd: cmd from ioctl
1646
 * @arg: arg from ioctl
1647
 *
1648
 * LOCKING:
1649
 * Takes mode config lock.
1650
 *
1651
 * Add a new FB to the specified CRTC, given a user request.
1652
 *
1653
 * Called by the user via ioctl.
1654
 *
1655
 * RETURNS:
1656
 * Zero on success, errno on failure.
1657
 */
1658
int drm_mode_addfb(struct drm_device *dev,
1659
		   void *data, struct drm_file *file_priv)
1660
{
1661
	struct drm_mode_fb_cmd *r = data;
1662
	struct drm_mode_config *config = &dev->mode_config;
1663
	struct drm_framebuffer *fb;
1664
	int ret = 0;
1665
 
1666
	if ((config->min_width > r->width) || (r->width > config->max_width)) {
1667
		DRM_ERROR("mode new framebuffer width not within limits\n");
1668
		return -EINVAL;
1669
	}
1670
	if ((config->min_height > r->height) || (r->height > config->max_height)) {
1671
		DRM_ERROR("mode new framebuffer height not within limits\n");
1672
		return -EINVAL;
1673
	}
1674
 
1675
	mutex_lock(&dev->mode_config.mutex);
1676
 
1677
	/* TODO check buffer is sufficently large */
1678
	/* TODO setup destructor callback */
1679
 
1680
	fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
1681
	if (!fb) {
1682
		DRM_ERROR("could not create framebuffer\n");
1683
		ret = -EINVAL;
1684
		goto out;
1685
	}
1686
 
1687
	r->fb_id = fb->base.id;
1688
	list_add(&fb->filp_head, &file_priv->fbs);
1689
 
1690
out:
1691
	mutex_unlock(&dev->mode_config.mutex);
1692
	return ret;
1693
}
1694
 
1695
/**
1696
 * drm_mode_rmfb - remove an FB from the configuration
1697
 * @inode: inode from the ioctl
1698
 * @filp: file * from the ioctl
1699
 * @cmd: cmd from ioctl
1700
 * @arg: arg from ioctl
1701
 *
1702
 * LOCKING:
1703
 * Takes mode config lock.
1704
 *
1705
 * Remove the FB specified by the user.
1706
 *
1707
 * Called by the user via ioctl.
1708
 *
1709
 * RETURNS:
1710
 * Zero on success, errno on failure.
1711
 */
1712
int drm_mode_rmfb(struct drm_device *dev,
1713
		   void *data, struct drm_file *file_priv)
1714
{
1715
	struct drm_mode_object *obj;
1716
	struct drm_framebuffer *fb = NULL;
1717
	struct drm_framebuffer *fbl = NULL;
1718
	uint32_t *id = data;
1719
	int ret = 0;
1720
	int found = 0;
1721
 
1722
	mutex_lock(&dev->mode_config.mutex);
1723
	obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB);
1724
	/* TODO check that we realy get a framebuffer back. */
1725
	if (!obj) {
1726
		DRM_ERROR("mode invalid framebuffer id\n");
1727
		ret = -EINVAL;
1728
		goto out;
1729
	}
1730
	fb = obj_to_fb(obj);
1731
 
1732
	list_for_each_entry(fbl, &file_priv->fbs, filp_head)
1733
		if (fb == fbl)
1734
			found = 1;
1735
 
1736
	if (!found) {
1737
		DRM_ERROR("tried to remove a fb that we didn't own\n");
1738
		ret = -EINVAL;
1739
		goto out;
1740
	}
1741
 
1742
	/* TODO release all crtc connected to the framebuffer */
1743
	/* TODO unhock the destructor from the buffer object */
1744
 
1745
	list_del(&fb->filp_head);
1746
	fb->funcs->destroy(fb);
1747
 
1748
out:
1749
	mutex_unlock(&dev->mode_config.mutex);
1750
	return ret;
1751
}
1752
 
1753
/**
1754
 * drm_mode_getfb - get FB info
1755
 * @inode: inode from the ioctl
1756
 * @filp: file * from the ioctl
1757
 * @cmd: cmd from ioctl
1758
 * @arg: arg from ioctl
1759
 *
1760
 * LOCKING:
1761
 * Caller? (FIXME)
1762
 *
1763
 * Lookup the FB given its ID and return info about it.
1764
 *
1765
 * Called by the user via ioctl.
1766
 *
1767
 * RETURNS:
1768
 * Zero on success, errno on failure.
1769
 */
1770
int drm_mode_getfb(struct drm_device *dev,
1771
		   void *data, struct drm_file *file_priv)
1772
{
1773
	struct drm_mode_fb_cmd *r = data;
1774
	struct drm_mode_object *obj;
1775
	struct drm_framebuffer *fb;
1776
	int ret = 0;
1777
 
1778
	mutex_lock(&dev->mode_config.mutex);
1779
	obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
1780
	if (!obj) {
1781
		DRM_ERROR("invalid framebuffer id\n");
1782
		ret = -EINVAL;
1783
		goto out;
1784
	}
1785
	fb = obj_to_fb(obj);
1786
 
1787
	r->height = fb->height;
1788
	r->width = fb->width;
1789
	r->depth = fb->depth;
1790
	r->bpp = fb->bits_per_pixel;
1791
	r->pitch = fb->pitch;
1792
	fb->funcs->create_handle(fb, file_priv, &r->handle);
1793
 
1794
out:
1795
	mutex_unlock(&dev->mode_config.mutex);
1796
	return ret;
1797
}
1798
 
1412 serge 1799
int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
1800
			   void *data, struct drm_file *file_priv)
1801
{
1802
	struct drm_clip_rect __user *clips_ptr;
1803
	struct drm_clip_rect *clips = NULL;
1804
	struct drm_mode_fb_dirty_cmd *r = data;
1805
	struct drm_mode_object *obj;
1806
	struct drm_framebuffer *fb;
1807
	unsigned flags;
1808
	int num_clips;
1809
	int ret = 0;
1810
 
1811
	mutex_lock(&dev->mode_config.mutex);
1812
	obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
1813
	if (!obj) {
1814
		DRM_ERROR("invalid framebuffer id\n");
1815
		ret = -EINVAL;
1816
		goto out_err1;
1817
	}
1818
	fb = obj_to_fb(obj);
1819
 
1820
	num_clips = r->num_clips;
1821
	clips_ptr = (struct drm_clip_rect *)(unsigned long)r->clips_ptr;
1822
 
1823
	if (!num_clips != !clips_ptr) {
1824
		ret = -EINVAL;
1825
		goto out_err1;
1826
	}
1827
 
1828
	flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags;
1829
 
1830
	/* If userspace annotates copy, clips must come in pairs */
1831
	if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) {
1832
		ret = -EINVAL;
1833
		goto out_err1;
1834
	}
1835
 
1836
	if (num_clips && clips_ptr) {
1837
		clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL);
1838
		if (!clips) {
1839
			ret = -ENOMEM;
1840
			goto out_err1;
1841
		}
1842
 
1843
		ret = copy_from_user(clips, clips_ptr,
1844
				     num_clips * sizeof(*clips));
1845
		if (ret)
1846
			goto out_err2;
1847
	}
1848
 
1849
	if (fb->funcs->dirty) {
1850
		ret = fb->funcs->dirty(fb, flags, r->color, clips, num_clips);
1851
	} else {
1852
		ret = -ENOSYS;
1853
		goto out_err2;
1854
	}
1855
 
1856
out_err2:
1857
	kfree(clips);
1858
out_err1:
1859
	mutex_unlock(&dev->mode_config.mutex);
1860
	return ret;
1861
}
1862
 
1863
 
1123 serge 1864
/**
1865
 * drm_fb_release - remove and free the FBs on this file
1866
 * @filp: file * from the ioctl
1867
 *
1868
 * LOCKING:
1869
 * Takes mode config lock.
1870
 *
1871
 * Destroy all the FBs associated with @filp.
1872
 *
1873
 * Called by the user via ioctl.
1874
 *
1875
 * RETURNS:
1876
 * Zero on success, errno on failure.
1877
 */
1878
void drm_fb_release(struct drm_file *priv)
1879
{
1880
	struct drm_device *dev = priv->minor->dev;
1881
	struct drm_framebuffer *fb, *tfb;
1882
 
1883
	mutex_lock(&dev->mode_config.mutex);
1884
	list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
1885
		list_del(&fb->filp_head);
1886
		fb->funcs->destroy(fb);
1887
	}
1888
	mutex_unlock(&dev->mode_config.mutex);
1889
}
1890
#endif
1891
 
1892
/**
1893
 * drm_mode_attachmode - add a mode to the user mode list
1894
 * @dev: DRM device
1895
 * @connector: connector to add the mode to
1896
 * @mode: mode to add
1897
 *
1898
 * Add @mode to @connector's user mode list.
1899
 */
1900
static int drm_mode_attachmode(struct drm_device *dev,
1901
			       struct drm_connector *connector,
1902
			       struct drm_display_mode *mode)
1903
{
1904
	int ret = 0;
1905
 
1906
	list_add_tail(&mode->head, &connector->user_modes);
1907
	return ret;
1908
}
1909
 
1910
int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc,
1911
			     struct drm_display_mode *mode)
1912
{
1913
	struct drm_connector *connector;
1914
	int ret = 0;
1915
	struct drm_display_mode *dup_mode;
1916
	int need_dup = 0;
1917
	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1918
		if (!connector->encoder)
1919
			break;
1920
		if (connector->encoder->crtc == crtc) {
1921
			if (need_dup)
1922
				dup_mode = drm_mode_duplicate(dev, mode);
1923
			else
1924
				dup_mode = mode;
1925
			ret = drm_mode_attachmode(dev, connector, dup_mode);
1926
			if (ret)
1927
				return ret;
1928
			need_dup = 1;
1929
		}
1930
	}
1931
	return 0;
1932
}
1933
EXPORT_SYMBOL(drm_mode_attachmode_crtc);
1934
 
1935
static int drm_mode_detachmode(struct drm_device *dev,
1936
			       struct drm_connector *connector,
1937
			       struct drm_display_mode *mode)
1938
{
1939
	int found = 0;
1940
	int ret = 0;
1941
	struct drm_display_mode *match_mode, *t;
1942
 
1943
	list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) {
1944
		if (drm_mode_equal(match_mode, mode)) {
1945
			list_del(&match_mode->head);
1946
			drm_mode_destroy(dev, match_mode);
1947
			found = 1;
1948
			break;
1949
		}
1950
	}
1951
 
1952
	if (!found)
1953
		ret = -EINVAL;
1954
 
1955
	return ret;
1956
}
1957
 
1958
int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode)
1959
{
1960
	struct drm_connector *connector;
1961
 
1962
	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1963
		drm_mode_detachmode(dev, connector, mode);
1964
	}
1965
	return 0;
1966
}
1967
EXPORT_SYMBOL(drm_mode_detachmode_crtc);
1968
 
1969
#if 0
1970
 
1971
/**
1972
 * drm_fb_attachmode - Attach a user mode to an connector
1973
 * @inode: inode from the ioctl
1974
 * @filp: file * from the ioctl
1975
 * @cmd: cmd from ioctl
1976
 * @arg: arg from ioctl
1977
 *
1978
 * This attaches a user specified mode to an connector.
1979
 * Called by the user via ioctl.
1980
 *
1981
 * RETURNS:
1982
 * Zero on success, errno on failure.
1983
 */
1984
int drm_mode_attachmode_ioctl(struct drm_device *dev,
1985
			      void *data, struct drm_file *file_priv)
1986
{
1987
	struct drm_mode_mode_cmd *mode_cmd = data;
1988
	struct drm_connector *connector;
1989
	struct drm_display_mode *mode;
1990
	struct drm_mode_object *obj;
1991
	struct drm_mode_modeinfo *umode = &mode_cmd->mode;
1992
	int ret = 0;
1993
 
1994
	mutex_lock(&dev->mode_config.mutex);
1995
 
1996
	obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
1997
	if (!obj) {
1998
		ret = -EINVAL;
1999
		goto out;
2000
	}
2001
	connector = obj_to_connector(obj);
2002
 
2003
	mode = drm_mode_create(dev);
2004
	if (!mode) {
2005
		ret = -ENOMEM;
2006
		goto out;
2007
	}
2008
 
2009
	drm_crtc_convert_umode(mode, umode);
2010
 
2011
	ret = drm_mode_attachmode(dev, connector, mode);
2012
out:
2013
	mutex_unlock(&dev->mode_config.mutex);
2014
	return ret;
2015
}
2016
 
2017
 
2018
/**
2019
 * drm_fb_detachmode - Detach a user specified mode from an connector
2020
 * @inode: inode from the ioctl
2021
 * @filp: file * from the ioctl
2022
 * @cmd: cmd from ioctl
2023
 * @arg: arg from ioctl
2024
 *
2025
 * Called by the user via ioctl.
2026
 *
2027
 * RETURNS:
2028
 * Zero on success, errno on failure.
2029
 */
2030
int drm_mode_detachmode_ioctl(struct drm_device *dev,
2031
			      void *data, struct drm_file *file_priv)
2032
{
2033
	struct drm_mode_object *obj;
2034
	struct drm_mode_mode_cmd *mode_cmd = data;
2035
	struct drm_connector *connector;
2036
	struct drm_display_mode mode;
2037
	struct drm_mode_modeinfo *umode = &mode_cmd->mode;
2038
	int ret = 0;
2039
 
2040
	mutex_lock(&dev->mode_config.mutex);
2041
 
2042
	obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2043
	if (!obj) {
2044
		ret = -EINVAL;
2045
		goto out;
2046
	}
2047
	connector = obj_to_connector(obj);
2048
 
2049
	drm_crtc_convert_umode(&mode, umode);
2050
	ret = drm_mode_detachmode(dev, connector, &mode);
2051
out:
2052
	mutex_unlock(&dev->mode_config.mutex);
2053
	return ret;
2054
}
2055
#endif
2056
 
2057
struct drm_property *drm_property_create(struct drm_device *dev, int flags,
2058
					 const char *name, int num_values)
2059
{
2060
	struct drm_property *property = NULL;
2061
 
2062
	property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
2063
	if (!property)
2064
		return NULL;
2065
 
2066
	if (num_values) {
2067
		property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
2068
		if (!property->values)
2069
			goto fail;
2070
	}
2071
 
2072
	drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
2073
	property->flags = flags;
2074
	property->num_values = num_values;
2075
	INIT_LIST_HEAD(&property->enum_blob_list);
2076
 
2077
	if (name)
2078
		strncpy(property->name, name, DRM_PROP_NAME_LEN);
2079
 
2080
	list_add_tail(&property->head, &dev->mode_config.property_list);
2081
	return property;
2082
fail:
2083
	kfree(property);
2084
	return NULL;
2085
}
2086
EXPORT_SYMBOL(drm_property_create);
2087
 
2088
int drm_property_add_enum(struct drm_property *property, int index,
2089
			  uint64_t value, const char *name)
2090
{
2091
	struct drm_property_enum *prop_enum;
2092
 
2093
	if (!(property->flags & DRM_MODE_PROP_ENUM))
2094
		return -EINVAL;
2095
 
2096
	if (!list_empty(&property->enum_blob_list)) {
2097
		list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2098
			if (prop_enum->value == value) {
2099
				strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2100
				prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2101
				return 0;
2102
			}
2103
		}
2104
	}
2105
 
2106
	prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
2107
	if (!prop_enum)
2108
		return -ENOMEM;
2109
 
2110
	strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2111
	prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2112
	prop_enum->value = value;
2113
 
2114
	property->values[index] = value;
2115
	list_add_tail(&prop_enum->head, &property->enum_blob_list);
2116
	return 0;
2117
}
2118
EXPORT_SYMBOL(drm_property_add_enum);
2119
 
2120
void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
2121
{
2122
	struct drm_property_enum *prop_enum, *pt;
2123
 
2124
	list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
2125
		list_del(&prop_enum->head);
2126
		kfree(prop_enum);
2127
	}
2128
 
2129
	if (property->num_values)
2130
		kfree(property->values);
2131
	drm_mode_object_put(dev, &property->base);
2132
	list_del(&property->head);
2133
	kfree(property);
2134
}
2135
EXPORT_SYMBOL(drm_property_destroy);
2136
 
2137
int drm_connector_attach_property(struct drm_connector *connector,
2138
			       struct drm_property *property, uint64_t init_val)
2139
{
2140
	int i;
2141
 
2142
	for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2143
		if (connector->property_ids[i] == 0) {
2144
			connector->property_ids[i] = property->base.id;
2145
			connector->property_values[i] = init_val;
2146
			break;
2147
		}
2148
	}
2149
 
2150
	if (i == DRM_CONNECTOR_MAX_PROPERTY)
2151
		return -EINVAL;
2152
	return 0;
2153
}
2154
EXPORT_SYMBOL(drm_connector_attach_property);
2155
 
2156
int drm_connector_property_set_value(struct drm_connector *connector,
2157
				  struct drm_property *property, uint64_t value)
2158
{
2159
	int i;
2160
 
2161
	for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2162
		if (connector->property_ids[i] == property->base.id) {
2163
			connector->property_values[i] = value;
2164
			break;
2165
		}
2166
	}
2167
 
2168
	if (i == DRM_CONNECTOR_MAX_PROPERTY)
2169
		return -EINVAL;
2170
	return 0;
2171
}
2172
EXPORT_SYMBOL(drm_connector_property_set_value);
2173
 
2174
int drm_connector_property_get_value(struct drm_connector *connector,
2175
				  struct drm_property *property, uint64_t *val)
2176
{
2177
	int i;
2178
 
2179
	for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2180
		if (connector->property_ids[i] == property->base.id) {
2181
			*val = connector->property_values[i];
2182
			break;
2183
		}
2184
	}
2185
 
2186
	if (i == DRM_CONNECTOR_MAX_PROPERTY)
2187
		return -EINVAL;
2188
	return 0;
2189
}
2190
EXPORT_SYMBOL(drm_connector_property_get_value);
2191
 
2192
#if 0
2193
int drm_mode_getproperty_ioctl(struct drm_device *dev,
2194
			       void *data, struct drm_file *file_priv)
2195
{
2196
	struct drm_mode_object *obj;
2197
	struct drm_mode_get_property *out_resp = data;
2198
	struct drm_property *property;
2199
	int enum_count = 0;
2200
	int blob_count = 0;
2201
	int value_count = 0;
2202
	int ret = 0, i;
2203
	int copied;
2204
	struct drm_property_enum *prop_enum;
2205
	struct drm_mode_property_enum __user *enum_ptr;
2206
	struct drm_property_blob *prop_blob;
2207
	uint32_t *blob_id_ptr;
2208
	uint64_t __user *values_ptr;
2209
	uint32_t __user *blob_length_ptr;
2210
 
1179 serge 2211
	mutex_lock(&dev->mode_config.mutex);
1123 serge 2212
	obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2213
	if (!obj) {
2214
		ret = -EINVAL;
2215
		goto done;
2216
	}
2217
	property = obj_to_property(obj);
2218
 
2219
	if (property->flags & DRM_MODE_PROP_ENUM) {
2220
		list_for_each_entry(prop_enum, &property->enum_blob_list, head)
2221
			enum_count++;
2222
	} else if (property->flags & DRM_MODE_PROP_BLOB) {
2223
		list_for_each_entry(prop_blob, &property->enum_blob_list, head)
2224
			blob_count++;
2225
	}
2226
 
2227
	value_count = property->num_values;
2228
 
2229
	strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
2230
	out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
2231
	out_resp->flags = property->flags;
2232
 
2233
	if ((out_resp->count_values >= value_count) && value_count) {
2234
		values_ptr = (uint64_t *)(unsigned long)out_resp->values_ptr;
2235
		for (i = 0; i < value_count; i++) {
2236
			if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
2237
				ret = -EFAULT;
2238
				goto done;
2239
			}
2240
		}
2241
	}
2242
	out_resp->count_values = value_count;
2243
 
2244
	if (property->flags & DRM_MODE_PROP_ENUM) {
2245
		if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
2246
			copied = 0;
2247
			enum_ptr = (struct drm_mode_property_enum *)(unsigned long)out_resp->enum_blob_ptr;
2248
			list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2249
 
2250
				if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
2251
					ret = -EFAULT;
2252
					goto done;
2253
				}
2254
 
2255
				if (copy_to_user(&enum_ptr[copied].name,
2256
						 &prop_enum->name, DRM_PROP_NAME_LEN)) {
2257
					ret = -EFAULT;
2258
					goto done;
2259
				}
2260
				copied++;
2261
			}
2262
		}
2263
		out_resp->count_enum_blobs = enum_count;
2264
	}
2265
 
2266
	if (property->flags & DRM_MODE_PROP_BLOB) {
2267
		if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
2268
			copied = 0;
2269
			blob_id_ptr = (uint32_t *)(unsigned long)out_resp->enum_blob_ptr;
2270
			blob_length_ptr = (uint32_t *)(unsigned long)out_resp->values_ptr;
2271
 
2272
			list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
2273
				if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
2274
					ret = -EFAULT;
2275
					goto done;
2276
				}
2277
 
2278
				if (put_user(prop_blob->length, blob_length_ptr + copied)) {
2279
					ret = -EFAULT;
2280
					goto done;
2281
				}
2282
 
2283
				copied++;
2284
			}
2285
		}
2286
		out_resp->count_enum_blobs = blob_count;
2287
	}
2288
done:
1179 serge 2289
	mutex_unlock(&dev->mode_config.mutex);
1123 serge 2290
	return ret;
2291
}
2292
#endif
2293
 
2294
static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
2295
							  void *data)
2296
{
2297
	struct drm_property_blob *blob;
2298
 
2299
	if (!length || !data)
2300
		return NULL;
2301
 
2302
	blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
2303
	if (!blob)
2304
		return NULL;
2305
 
2306
	blob->data = (void *)((char *)blob + sizeof(struct drm_property_blob));
2307
	blob->length = length;
2308
 
2309
	memcpy(blob->data, data, length);
2310
 
2311
	drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
2312
 
2313
	list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
2314
	return blob;
2315
}
2316
 
2317
static void drm_property_destroy_blob(struct drm_device *dev,
2318
			       struct drm_property_blob *blob)
2319
{
2320
	drm_mode_object_put(dev, &blob->base);
2321
	list_del(&blob->head);
2322
	kfree(blob);
2323
}
2324
 
2325
#if 0
2326
int drm_mode_getblob_ioctl(struct drm_device *dev,
2327
			   void *data, struct drm_file *file_priv)
2328
{
2329
	struct drm_mode_object *obj;
2330
	struct drm_mode_get_blob *out_resp = data;
2331
	struct drm_property_blob *blob;
2332
	int ret = 0;
2333
	void *blob_ptr;
2334
 
2335
	mutex_lock(&dev->mode_config.mutex);
2336
	obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
2337
	if (!obj) {
2338
		ret = -EINVAL;
2339
		goto done;
2340
	}
2341
	blob = obj_to_blob(obj);
2342
 
2343
	if (out_resp->length == blob->length) {
2344
		blob_ptr = (void *)(unsigned long)out_resp->data;
2345
		if (copy_to_user(blob_ptr, blob->data, blob->length)){
2346
			ret = -EFAULT;
2347
			goto done;
2348
		}
2349
	}
2350
	out_resp->length = blob->length;
2351
 
2352
done:
2353
	mutex_unlock(&dev->mode_config.mutex);
2354
	return ret;
2355
}
2356
#endif
2357
 
2358
int drm_mode_connector_update_edid_property(struct drm_connector *connector,
2359
					    struct edid *edid)
2360
{
2361
	struct drm_device *dev = connector->dev;
2362
	int ret = 0;
2363
 
2364
	if (connector->edid_blob_ptr)
2365
		drm_property_destroy_blob(dev, connector->edid_blob_ptr);
2366
 
2367
	/* Delete edid, when there is none. */
2368
	if (!edid) {
2369
		connector->edid_blob_ptr = NULL;
2370
		ret = drm_connector_property_set_value(connector, dev->mode_config.edid_property, 0);
2371
		return ret;
2372
	}
2373
 
2374
	connector->edid_blob_ptr = drm_property_create_blob(connector->dev, 128, edid);
2375
 
2376
	ret = drm_connector_property_set_value(connector,
2377
					       dev->mode_config.edid_property,
2378
					       connector->edid_blob_ptr->base.id);
2379
 
2380
	return ret;
2381
}
2382
EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
2383
 
2384
#if 0
2385
int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
2386
				       void *data, struct drm_file *file_priv)
2387
{
2388
	struct drm_mode_connector_set_property *out_resp = data;
2389
	struct drm_mode_object *obj;
2390
	struct drm_property *property;
2391
	struct drm_connector *connector;
2392
	int ret = -EINVAL;
2393
	int i;
2394
 
1179 serge 2395
	mutex_lock(&dev->mode_config.mutex);
1123 serge 2396
 
2397
	obj = drm_mode_object_find(dev, out_resp->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2398
	if (!obj) {
2399
		goto out;
2400
	}
2401
	connector = obj_to_connector(obj);
2402
 
2403
	for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2404
		if (connector->property_ids[i] == out_resp->prop_id)
2405
			break;
2406
	}
2407
 
2408
	if (i == DRM_CONNECTOR_MAX_PROPERTY) {
2409
		goto out;
2410
	}
2411
 
2412
	obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2413
	if (!obj) {
2414
		goto out;
2415
	}
2416
	property = obj_to_property(obj);
2417
 
2418
	if (property->flags & DRM_MODE_PROP_IMMUTABLE)
2419
		goto out;
2420
 
2421
	if (property->flags & DRM_MODE_PROP_RANGE) {
2422
		if (out_resp->value < property->values[0])
2423
			goto out;
2424
 
2425
		if (out_resp->value > property->values[1])
2426
			goto out;
2427
	} else {
2428
		int found = 0;
2429
		for (i = 0; i < property->num_values; i++) {
2430
			if (property->values[i] == out_resp->value) {
2431
				found = 1;
2432
				break;
2433
			}
2434
		}
2435
		if (!found) {
2436
			goto out;
2437
		}
2438
	}
2439
 
2440
	/* Do DPMS ourselves */
2441
	if (property == connector->dev->mode_config.dpms_property) {
2442
		if (connector->funcs->dpms)
2443
			(*connector->funcs->dpms)(connector, (int) out_resp->value);
2444
		ret = 0;
2445
	} else if (connector->funcs->set_property)
2446
		ret = connector->funcs->set_property(connector, property, out_resp->value);
2447
 
1321 serge 2448
	/* store the property value if successful */
1123 serge 2449
	if (!ret)
2450
		drm_connector_property_set_value(connector, property, out_resp->value);
2451
out:
1179 serge 2452
	mutex_unlock(&dev->mode_config.mutex);
1123 serge 2453
	return ret;
2454
}
2455
#endif
2456
 
2457
int drm_mode_connector_attach_encoder(struct drm_connector *connector,
2458
				      struct drm_encoder *encoder)
2459
{
2460
	int i;
2461
 
2462
	for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
2463
		if (connector->encoder_ids[i] == 0) {
2464
			connector->encoder_ids[i] = encoder->base.id;
2465
			return 0;
2466
		}
2467
	}
2468
	return -ENOMEM;
2469
}
2470
EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
2471
 
2472
void drm_mode_connector_detach_encoder(struct drm_connector *connector,
2473
				    struct drm_encoder *encoder)
2474
{
2475
	int i;
2476
	for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
2477
		if (connector->encoder_ids[i] == encoder->base.id) {
2478
			connector->encoder_ids[i] = 0;
2479
			if (connector->encoder == encoder)
2480
				connector->encoder = NULL;
2481
			break;
2482
		}
2483
	}
2484
}
2485
EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
2486
 
2487
bool drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
2488
				  int gamma_size)
2489
{
2490
	crtc->gamma_size = gamma_size;
2491
 
2492
	crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
2493
	if (!crtc->gamma_store) {
2494
		crtc->gamma_size = 0;
2495
		return false;
2496
	}
2497
 
2498
	return true;
2499
}
2500
EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
2501
 
2502
#if 0
2503
int drm_mode_gamma_set_ioctl(struct drm_device *dev,
2504
			     void *data, struct drm_file *file_priv)
2505
{
2506
	struct drm_mode_crtc_lut *crtc_lut = data;
2507
	struct drm_mode_object *obj;
2508
	struct drm_crtc *crtc;
2509
	void *r_base, *g_base, *b_base;
2510
	int size;
2511
	int ret = 0;
2512
 
1179 serge 2513
	mutex_lock(&dev->mode_config.mutex);
1123 serge 2514
	obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
2515
	if (!obj) {
2516
		ret = -EINVAL;
2517
		goto out;
2518
	}
2519
	crtc = obj_to_crtc(obj);
2520
 
2521
	/* memcpy into gamma store */
2522
	if (crtc_lut->gamma_size != crtc->gamma_size) {
2523
		ret = -EINVAL;
2524
		goto out;
2525
	}
2526
 
2527
	size = crtc_lut->gamma_size * (sizeof(uint16_t));
2528
	r_base = crtc->gamma_store;
2529
	if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
2530
		ret = -EFAULT;
2531
		goto out;
2532
	}
2533
 
2534
	g_base = r_base + size;
2535
	if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
2536
		ret = -EFAULT;
2537
		goto out;
2538
	}
2539
 
2540
	b_base = g_base + size;
2541
	if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
2542
		ret = -EFAULT;
2543
		goto out;
2544
	}
2545
 
2546
	crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, crtc->gamma_size);
2547
 
2548
out:
1179 serge 2549
	mutex_unlock(&dev->mode_config.mutex);
1123 serge 2550
	return ret;
2551
 
2552
}
2553
 
2554
int drm_mode_gamma_get_ioctl(struct drm_device *dev,
2555
			     void *data, struct drm_file *file_priv)
2556
{
2557
	struct drm_mode_crtc_lut *crtc_lut = data;
2558
	struct drm_mode_object *obj;
2559
	struct drm_crtc *crtc;
2560
	void *r_base, *g_base, *b_base;
2561
	int size;
2562
	int ret = 0;
2563
 
1179 serge 2564
	mutex_lock(&dev->mode_config.mutex);
1123 serge 2565
	obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
2566
	if (!obj) {
2567
		ret = -EINVAL;
2568
		goto out;
2569
	}
2570
	crtc = obj_to_crtc(obj);
2571
 
2572
	/* memcpy into gamma store */
2573
	if (crtc_lut->gamma_size != crtc->gamma_size) {
2574
		ret = -EINVAL;
2575
		goto out;
2576
	}
2577
 
2578
	size = crtc_lut->gamma_size * (sizeof(uint16_t));
2579
	r_base = crtc->gamma_store;
2580
	if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
2581
		ret = -EFAULT;
2582
		goto out;
2583
	}
2584
 
2585
	g_base = r_base + size;
2586
	if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
2587
		ret = -EFAULT;
2588
		goto out;
2589
	}
2590
 
2591
	b_base = g_base + size;
2592
	if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
2593
		ret = -EFAULT;
2594
		goto out;
2595
	}
2596
out:
1179 serge 2597
	mutex_unlock(&dev->mode_config.mutex);
1123 serge 2598
	return ret;
2599
}
2600
 
2601
#endif
1179 serge 2602