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52217195 DV |
1 | /* |
2 | * Copyright (c) 2016 Intel Corporation | |
3 | * | |
4 | * Permission to use, copy, modify, distribute, and sell this software and its | |
5 | * documentation for any purpose is hereby granted without fee, provided that | |
6 | * the above copyright notice appear in all copies and that both that copyright | |
7 | * notice and this permission notice appear in supporting documentation, and | |
8 | * that the name of the copyright holders not be used in advertising or | |
9 | * publicity pertaining to distribution of the software without specific, | |
10 | * written prior permission. The copyright holders make no representations | |
11 | * about the suitability of this software for any purpose. It is provided "as | |
12 | * is" without express or implied warranty. | |
13 | * | |
14 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, | |
15 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO | |
16 | * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR | |
17 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, | |
18 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER | |
19 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE | |
20 | * OF THIS SOFTWARE. | |
21 | */ | |
22 | ||
23 | #include <drm/drmP.h> | |
24 | #include <drm/drm_connector.h> | |
25 | #include <drm/drm_edid.h> | |
26 | ||
27 | #include "drm_crtc_internal.h" | |
28 | #include "drm_internal.h" | |
29 | ||
ae2a6da8 DV |
30 | /** |
31 | * DOC: overview | |
32 | * | |
33 | * In DRM connectors are the general abstraction for display sinks, and include | |
34 | * als fixed panels or anything else that can display pixels in some form. As | |
35 | * opposed to all other KMS objects representing hardware (like CRTC, encoder or | |
36 | * plane abstractions) connectors can be hotplugged and unplugged at runtime. | |
37 | * Hence they are reference-counted using drm_connector_reference() and | |
38 | * drm_connector_unreference(). | |
39 | * | |
40 | * KMS driver must create, initialize, register and attach at a struct | |
41 | * &drm_connector for each such sink. The instance is created as other KMS | |
42 | * objects and initialized by setting the following fields. | |
43 | * | |
44 | * The connector is then registered with a call to drm_connector_init() with a | |
45 | * pointer to the connector functions and a connector type, and exposed through | |
46 | * sysfs with a call to drm_connector_register(). | |
47 | * | |
48 | * Connectors must be attached to an encoder to be used. For devices that map | |
49 | * connectors to encoders 1:1, the connector should be attached at | |
50 | * initialization time with a call to drm_mode_connector_attach_encoder(). The | |
51 | * driver must also set the struct &drm_connector encoder field to point to the | |
52 | * attached encoder. | |
53 | * | |
54 | * For connectors which are not fixed (like built-in panels) the driver needs to | |
55 | * support hotplug notifications. The simplest way to do that is by using the | |
56 | * probe helpers, see drm_kms_helper_poll_init() for connectors which don't have | |
57 | * hardware support for hotplug interrupts. Connectors with hardware hotplug | |
58 | * support can instead use e.g. drm_helper_hpd_irq_event(). | |
59 | */ | |
60 | ||
52217195 DV |
61 | struct drm_conn_prop_enum_list { |
62 | int type; | |
63 | const char *name; | |
64 | struct ida ida; | |
65 | }; | |
66 | ||
67 | /* | |
68 | * Connector and encoder types. | |
69 | */ | |
70 | static struct drm_conn_prop_enum_list drm_connector_enum_list[] = { | |
71 | { DRM_MODE_CONNECTOR_Unknown, "Unknown" }, | |
72 | { DRM_MODE_CONNECTOR_VGA, "VGA" }, | |
73 | { DRM_MODE_CONNECTOR_DVII, "DVI-I" }, | |
74 | { DRM_MODE_CONNECTOR_DVID, "DVI-D" }, | |
75 | { DRM_MODE_CONNECTOR_DVIA, "DVI-A" }, | |
76 | { DRM_MODE_CONNECTOR_Composite, "Composite" }, | |
77 | { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO" }, | |
78 | { DRM_MODE_CONNECTOR_LVDS, "LVDS" }, | |
79 | { DRM_MODE_CONNECTOR_Component, "Component" }, | |
80 | { DRM_MODE_CONNECTOR_9PinDIN, "DIN" }, | |
81 | { DRM_MODE_CONNECTOR_DisplayPort, "DP" }, | |
82 | { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" }, | |
83 | { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" }, | |
84 | { DRM_MODE_CONNECTOR_TV, "TV" }, | |
85 | { DRM_MODE_CONNECTOR_eDP, "eDP" }, | |
86 | { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual" }, | |
87 | { DRM_MODE_CONNECTOR_DSI, "DSI" }, | |
88 | { DRM_MODE_CONNECTOR_DPI, "DPI" }, | |
89 | }; | |
90 | ||
91 | void drm_connector_ida_init(void) | |
92 | { | |
93 | int i; | |
94 | ||
95 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) | |
96 | ida_init(&drm_connector_enum_list[i].ida); | |
97 | } | |
98 | ||
99 | void drm_connector_ida_destroy(void) | |
100 | { | |
101 | int i; | |
102 | ||
103 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) | |
104 | ida_destroy(&drm_connector_enum_list[i].ida); | |
105 | } | |
106 | ||
107 | /** | |
108 | * drm_connector_get_cmdline_mode - reads the user's cmdline mode | |
109 | * @connector: connector to quwery | |
110 | * | |
ae2a6da8 | 111 | * The kernel supports per-connector configuration of its consoles through |
52217195 DV |
112 | * use of the video= parameter. This function parses that option and |
113 | * extracts the user's specified mode (or enable/disable status) for a | |
114 | * particular connector. This is typically only used during the early fbdev | |
115 | * setup. | |
116 | */ | |
117 | static void drm_connector_get_cmdline_mode(struct drm_connector *connector) | |
118 | { | |
119 | struct drm_cmdline_mode *mode = &connector->cmdline_mode; | |
120 | char *option = NULL; | |
121 | ||
122 | if (fb_get_options(connector->name, &option)) | |
123 | return; | |
124 | ||
125 | if (!drm_mode_parse_command_line_for_connector(option, | |
126 | connector, | |
127 | mode)) | |
128 | return; | |
129 | ||
130 | if (mode->force) { | |
131 | const char *s; | |
132 | ||
133 | switch (mode->force) { | |
134 | case DRM_FORCE_OFF: | |
135 | s = "OFF"; | |
136 | break; | |
137 | case DRM_FORCE_ON_DIGITAL: | |
138 | s = "ON - dig"; | |
139 | break; | |
140 | default: | |
141 | case DRM_FORCE_ON: | |
142 | s = "ON"; | |
143 | break; | |
144 | } | |
145 | ||
146 | DRM_INFO("forcing %s connector %s\n", connector->name, s); | |
147 | connector->force = mode->force; | |
148 | } | |
149 | ||
150 | DRM_DEBUG_KMS("cmdline mode for connector %s %dx%d@%dHz%s%s%s\n", | |
151 | connector->name, | |
152 | mode->xres, mode->yres, | |
153 | mode->refresh_specified ? mode->refresh : 60, | |
154 | mode->rb ? " reduced blanking" : "", | |
155 | mode->margins ? " with margins" : "", | |
156 | mode->interlace ? " interlaced" : ""); | |
157 | } | |
158 | ||
159 | static void drm_connector_free(struct kref *kref) | |
160 | { | |
161 | struct drm_connector *connector = | |
162 | container_of(kref, struct drm_connector, base.refcount); | |
163 | struct drm_device *dev = connector->dev; | |
164 | ||
165 | drm_mode_object_unregister(dev, &connector->base); | |
166 | connector->funcs->destroy(connector); | |
167 | } | |
168 | ||
169 | /** | |
170 | * drm_connector_init - Init a preallocated connector | |
171 | * @dev: DRM device | |
172 | * @connector: the connector to init | |
173 | * @funcs: callbacks for this connector | |
174 | * @connector_type: user visible type of the connector | |
175 | * | |
176 | * Initialises a preallocated connector. Connectors should be | |
177 | * subclassed as part of driver connector objects. | |
178 | * | |
179 | * Returns: | |
180 | * Zero on success, error code on failure. | |
181 | */ | |
182 | int drm_connector_init(struct drm_device *dev, | |
183 | struct drm_connector *connector, | |
184 | const struct drm_connector_funcs *funcs, | |
185 | int connector_type) | |
186 | { | |
187 | struct drm_mode_config *config = &dev->mode_config; | |
188 | int ret; | |
189 | struct ida *connector_ida = | |
190 | &drm_connector_enum_list[connector_type].ida; | |
191 | ||
192 | drm_modeset_lock_all(dev); | |
193 | ||
194 | ret = drm_mode_object_get_reg(dev, &connector->base, | |
195 | DRM_MODE_OBJECT_CONNECTOR, | |
196 | false, drm_connector_free); | |
197 | if (ret) | |
198 | goto out_unlock; | |
199 | ||
200 | connector->base.properties = &connector->properties; | |
201 | connector->dev = dev; | |
202 | connector->funcs = funcs; | |
203 | ||
204 | ret = ida_simple_get(&config->connector_ida, 0, 0, GFP_KERNEL); | |
205 | if (ret < 0) | |
206 | goto out_put; | |
207 | connector->index = ret; | |
208 | ret = 0; | |
209 | ||
210 | connector->connector_type = connector_type; | |
211 | connector->connector_type_id = | |
212 | ida_simple_get(connector_ida, 1, 0, GFP_KERNEL); | |
213 | if (connector->connector_type_id < 0) { | |
214 | ret = connector->connector_type_id; | |
215 | goto out_put_id; | |
216 | } | |
217 | connector->name = | |
218 | kasprintf(GFP_KERNEL, "%s-%d", | |
219 | drm_connector_enum_list[connector_type].name, | |
220 | connector->connector_type_id); | |
221 | if (!connector->name) { | |
222 | ret = -ENOMEM; | |
223 | goto out_put_type_id; | |
224 | } | |
225 | ||
226 | INIT_LIST_HEAD(&connector->probed_modes); | |
227 | INIT_LIST_HEAD(&connector->modes); | |
228 | connector->edid_blob_ptr = NULL; | |
229 | connector->status = connector_status_unknown; | |
230 | ||
231 | drm_connector_get_cmdline_mode(connector); | |
232 | ||
233 | /* We should add connectors at the end to avoid upsetting the connector | |
234 | * index too much. */ | |
235 | list_add_tail(&connector->head, &config->connector_list); | |
236 | config->num_connector++; | |
237 | ||
238 | if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL) | |
239 | drm_object_attach_property(&connector->base, | |
240 | config->edid_property, | |
241 | 0); | |
242 | ||
243 | drm_object_attach_property(&connector->base, | |
244 | config->dpms_property, 0); | |
245 | ||
246 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { | |
247 | drm_object_attach_property(&connector->base, config->prop_crtc_id, 0); | |
248 | } | |
249 | ||
250 | connector->debugfs_entry = NULL; | |
251 | out_put_type_id: | |
252 | if (ret) | |
587680c1 | 253 | ida_simple_remove(connector_ida, connector->connector_type_id); |
52217195 DV |
254 | out_put_id: |
255 | if (ret) | |
587680c1 | 256 | ida_simple_remove(&config->connector_ida, connector->index); |
52217195 DV |
257 | out_put: |
258 | if (ret) | |
259 | drm_mode_object_unregister(dev, &connector->base); | |
260 | ||
261 | out_unlock: | |
262 | drm_modeset_unlock_all(dev); | |
263 | ||
264 | return ret; | |
265 | } | |
266 | EXPORT_SYMBOL(drm_connector_init); | |
267 | ||
268 | /** | |
269 | * drm_mode_connector_attach_encoder - attach a connector to an encoder | |
270 | * @connector: connector to attach | |
271 | * @encoder: encoder to attach @connector to | |
272 | * | |
273 | * This function links up a connector to an encoder. Note that the routing | |
274 | * restrictions between encoders and crtcs are exposed to userspace through the | |
275 | * possible_clones and possible_crtcs bitmasks. | |
276 | * | |
277 | * Returns: | |
278 | * Zero on success, negative errno on failure. | |
279 | */ | |
280 | int drm_mode_connector_attach_encoder(struct drm_connector *connector, | |
281 | struct drm_encoder *encoder) | |
282 | { | |
283 | int i; | |
284 | ||
285 | /* | |
286 | * In the past, drivers have attempted to model the static association | |
287 | * of connector to encoder in simple connector/encoder devices using a | |
288 | * direct assignment of connector->encoder = encoder. This connection | |
289 | * is a logical one and the responsibility of the core, so drivers are | |
290 | * expected not to mess with this. | |
291 | * | |
292 | * Note that the error return should've been enough here, but a large | |
293 | * majority of drivers ignores the return value, so add in a big WARN | |
294 | * to get people's attention. | |
295 | */ | |
296 | if (WARN_ON(connector->encoder)) | |
297 | return -EINVAL; | |
298 | ||
299 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { | |
300 | if (connector->encoder_ids[i] == 0) { | |
301 | connector->encoder_ids[i] = encoder->base.id; | |
302 | return 0; | |
303 | } | |
304 | } | |
305 | return -ENOMEM; | |
306 | } | |
307 | EXPORT_SYMBOL(drm_mode_connector_attach_encoder); | |
308 | ||
309 | static void drm_mode_remove(struct drm_connector *connector, | |
310 | struct drm_display_mode *mode) | |
311 | { | |
312 | list_del(&mode->head); | |
313 | drm_mode_destroy(connector->dev, mode); | |
314 | } | |
315 | ||
316 | /** | |
317 | * drm_connector_cleanup - cleans up an initialised connector | |
318 | * @connector: connector to cleanup | |
319 | * | |
320 | * Cleans up the connector but doesn't free the object. | |
321 | */ | |
322 | void drm_connector_cleanup(struct drm_connector *connector) | |
323 | { | |
324 | struct drm_device *dev = connector->dev; | |
325 | struct drm_display_mode *mode, *t; | |
326 | ||
327 | /* The connector should have been removed from userspace long before | |
328 | * it is finally destroyed. | |
329 | */ | |
330 | if (WARN_ON(connector->registered)) | |
331 | drm_connector_unregister(connector); | |
332 | ||
333 | if (connector->tile_group) { | |
334 | drm_mode_put_tile_group(dev, connector->tile_group); | |
335 | connector->tile_group = NULL; | |
336 | } | |
337 | ||
338 | list_for_each_entry_safe(mode, t, &connector->probed_modes, head) | |
339 | drm_mode_remove(connector, mode); | |
340 | ||
341 | list_for_each_entry_safe(mode, t, &connector->modes, head) | |
342 | drm_mode_remove(connector, mode); | |
343 | ||
344 | ida_remove(&drm_connector_enum_list[connector->connector_type].ida, | |
345 | connector->connector_type_id); | |
346 | ||
347 | ida_remove(&dev->mode_config.connector_ida, | |
348 | connector->index); | |
349 | ||
350 | kfree(connector->display_info.bus_formats); | |
351 | drm_mode_object_unregister(dev, &connector->base); | |
352 | kfree(connector->name); | |
353 | connector->name = NULL; | |
354 | list_del(&connector->head); | |
355 | dev->mode_config.num_connector--; | |
356 | ||
357 | WARN_ON(connector->state && !connector->funcs->atomic_destroy_state); | |
358 | if (connector->state && connector->funcs->atomic_destroy_state) | |
359 | connector->funcs->atomic_destroy_state(connector, | |
360 | connector->state); | |
361 | ||
362 | memset(connector, 0, sizeof(*connector)); | |
363 | } | |
364 | EXPORT_SYMBOL(drm_connector_cleanup); | |
365 | ||
366 | /** | |
367 | * drm_connector_register - register a connector | |
368 | * @connector: the connector to register | |
369 | * | |
370 | * Register userspace interfaces for a connector | |
371 | * | |
372 | * Returns: | |
373 | * Zero on success, error code on failure. | |
374 | */ | |
375 | int drm_connector_register(struct drm_connector *connector) | |
376 | { | |
377 | int ret; | |
378 | ||
379 | if (connector->registered) | |
380 | return 0; | |
381 | ||
382 | ret = drm_sysfs_connector_add(connector); | |
383 | if (ret) | |
384 | return ret; | |
385 | ||
386 | ret = drm_debugfs_connector_add(connector); | |
387 | if (ret) { | |
388 | goto err_sysfs; | |
389 | } | |
390 | ||
391 | if (connector->funcs->late_register) { | |
392 | ret = connector->funcs->late_register(connector); | |
393 | if (ret) | |
394 | goto err_debugfs; | |
395 | } | |
396 | ||
397 | drm_mode_object_register(connector->dev, &connector->base); | |
398 | ||
399 | connector->registered = true; | |
400 | return 0; | |
401 | ||
402 | err_debugfs: | |
403 | drm_debugfs_connector_remove(connector); | |
404 | err_sysfs: | |
405 | drm_sysfs_connector_remove(connector); | |
406 | return ret; | |
407 | } | |
408 | EXPORT_SYMBOL(drm_connector_register); | |
409 | ||
410 | /** | |
411 | * drm_connector_unregister - unregister a connector | |
412 | * @connector: the connector to unregister | |
413 | * | |
414 | * Unregister userspace interfaces for a connector | |
415 | */ | |
416 | void drm_connector_unregister(struct drm_connector *connector) | |
417 | { | |
418 | if (!connector->registered) | |
419 | return; | |
420 | ||
421 | if (connector->funcs->early_unregister) | |
422 | connector->funcs->early_unregister(connector); | |
423 | ||
424 | drm_sysfs_connector_remove(connector); | |
425 | drm_debugfs_connector_remove(connector); | |
426 | ||
427 | connector->registered = false; | |
428 | } | |
429 | EXPORT_SYMBOL(drm_connector_unregister); | |
430 | ||
431 | void drm_connector_unregister_all(struct drm_device *dev) | |
432 | { | |
433 | struct drm_connector *connector; | |
434 | ||
435 | /* FIXME: taking the mode config mutex ends up in a clash with sysfs */ | |
436 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) | |
437 | drm_connector_unregister(connector); | |
438 | } | |
439 | ||
440 | int drm_connector_register_all(struct drm_device *dev) | |
441 | { | |
442 | struct drm_connector *connector; | |
443 | int ret; | |
444 | ||
445 | /* FIXME: taking the mode config mutex ends up in a clash with | |
446 | * fbcon/backlight registration */ | |
447 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
448 | ret = drm_connector_register(connector); | |
449 | if (ret) | |
450 | goto err; | |
451 | } | |
452 | ||
453 | return 0; | |
454 | ||
455 | err: | |
456 | mutex_unlock(&dev->mode_config.mutex); | |
457 | drm_connector_unregister_all(dev); | |
458 | return ret; | |
459 | } | |
460 | ||
461 | /** | |
462 | * drm_get_connector_status_name - return a string for connector status | |
463 | * @status: connector status to compute name of | |
464 | * | |
465 | * In contrast to the other drm_get_*_name functions this one here returns a | |
466 | * const pointer and hence is threadsafe. | |
467 | */ | |
468 | const char *drm_get_connector_status_name(enum drm_connector_status status) | |
469 | { | |
470 | if (status == connector_status_connected) | |
471 | return "connected"; | |
472 | else if (status == connector_status_disconnected) | |
473 | return "disconnected"; | |
474 | else | |
475 | return "unknown"; | |
476 | } | |
477 | EXPORT_SYMBOL(drm_get_connector_status_name); | |
478 | ||
479 | static const struct drm_prop_enum_list drm_subpixel_enum_list[] = { | |
480 | { SubPixelUnknown, "Unknown" }, | |
481 | { SubPixelHorizontalRGB, "Horizontal RGB" }, | |
482 | { SubPixelHorizontalBGR, "Horizontal BGR" }, | |
483 | { SubPixelVerticalRGB, "Vertical RGB" }, | |
484 | { SubPixelVerticalBGR, "Vertical BGR" }, | |
485 | { SubPixelNone, "None" }, | |
486 | }; | |
487 | ||
488 | /** | |
489 | * drm_get_subpixel_order_name - return a string for a given subpixel enum | |
490 | * @order: enum of subpixel_order | |
491 | * | |
492 | * Note you could abuse this and return something out of bounds, but that | |
493 | * would be a caller error. No unscrubbed user data should make it here. | |
494 | */ | |
495 | const char *drm_get_subpixel_order_name(enum subpixel_order order) | |
496 | { | |
497 | return drm_subpixel_enum_list[order].name; | |
498 | } | |
499 | EXPORT_SYMBOL(drm_get_subpixel_order_name); | |
500 | ||
501 | static const struct drm_prop_enum_list drm_dpms_enum_list[] = { | |
502 | { DRM_MODE_DPMS_ON, "On" }, | |
503 | { DRM_MODE_DPMS_STANDBY, "Standby" }, | |
504 | { DRM_MODE_DPMS_SUSPEND, "Suspend" }, | |
505 | { DRM_MODE_DPMS_OFF, "Off" } | |
506 | }; | |
507 | DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list) | |
508 | ||
b3c6c8bf DV |
509 | /** |
510 | * drm_display_info_set_bus_formats - set the supported bus formats | |
511 | * @info: display info to store bus formats in | |
512 | * @formats: array containing the supported bus formats | |
513 | * @num_formats: the number of entries in the fmts array | |
514 | * | |
515 | * Store the supported bus formats in display info structure. | |
516 | * See MEDIA_BUS_FMT_* definitions in include/uapi/linux/media-bus-format.h for | |
517 | * a full list of available formats. | |
518 | */ | |
519 | int drm_display_info_set_bus_formats(struct drm_display_info *info, | |
520 | const u32 *formats, | |
521 | unsigned int num_formats) | |
522 | { | |
523 | u32 *fmts = NULL; | |
524 | ||
525 | if (!formats && num_formats) | |
526 | return -EINVAL; | |
527 | ||
528 | if (formats && num_formats) { | |
529 | fmts = kmemdup(formats, sizeof(*formats) * num_formats, | |
530 | GFP_KERNEL); | |
531 | if (!fmts) | |
532 | return -ENOMEM; | |
533 | } | |
534 | ||
535 | kfree(info->bus_formats); | |
536 | info->bus_formats = fmts; | |
537 | info->num_bus_formats = num_formats; | |
538 | ||
539 | return 0; | |
540 | } | |
541 | EXPORT_SYMBOL(drm_display_info_set_bus_formats); | |
542 | ||
52217195 DV |
543 | /* Optional connector properties. */ |
544 | static const struct drm_prop_enum_list drm_scaling_mode_enum_list[] = { | |
545 | { DRM_MODE_SCALE_NONE, "None" }, | |
546 | { DRM_MODE_SCALE_FULLSCREEN, "Full" }, | |
547 | { DRM_MODE_SCALE_CENTER, "Center" }, | |
548 | { DRM_MODE_SCALE_ASPECT, "Full aspect" }, | |
549 | }; | |
550 | ||
551 | static const struct drm_prop_enum_list drm_aspect_ratio_enum_list[] = { | |
552 | { DRM_MODE_PICTURE_ASPECT_NONE, "Automatic" }, | |
553 | { DRM_MODE_PICTURE_ASPECT_4_3, "4:3" }, | |
554 | { DRM_MODE_PICTURE_ASPECT_16_9, "16:9" }, | |
555 | }; | |
556 | ||
557 | static const struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = { | |
558 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ | |
559 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
560 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
561 | }; | |
562 | DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list) | |
563 | ||
564 | static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = { | |
565 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ | |
566 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
567 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
568 | }; | |
569 | DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name, | |
570 | drm_dvi_i_subconnector_enum_list) | |
571 | ||
572 | static const struct drm_prop_enum_list drm_tv_select_enum_list[] = { | |
573 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ | |
574 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
575 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
576 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
577 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ | |
578 | }; | |
579 | DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list) | |
580 | ||
581 | static const struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = { | |
582 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ | |
583 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
584 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
585 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
586 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ | |
587 | }; | |
588 | DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, | |
589 | drm_tv_subconnector_enum_list) | |
590 | ||
591 | int drm_connector_create_standard_properties(struct drm_device *dev) | |
592 | { | |
593 | struct drm_property *prop; | |
594 | ||
595 | prop = drm_property_create(dev, DRM_MODE_PROP_BLOB | | |
596 | DRM_MODE_PROP_IMMUTABLE, | |
597 | "EDID", 0); | |
598 | if (!prop) | |
599 | return -ENOMEM; | |
600 | dev->mode_config.edid_property = prop; | |
601 | ||
602 | prop = drm_property_create_enum(dev, 0, | |
603 | "DPMS", drm_dpms_enum_list, | |
604 | ARRAY_SIZE(drm_dpms_enum_list)); | |
605 | if (!prop) | |
606 | return -ENOMEM; | |
607 | dev->mode_config.dpms_property = prop; | |
608 | ||
609 | prop = drm_property_create(dev, | |
610 | DRM_MODE_PROP_BLOB | | |
611 | DRM_MODE_PROP_IMMUTABLE, | |
612 | "PATH", 0); | |
613 | if (!prop) | |
614 | return -ENOMEM; | |
615 | dev->mode_config.path_property = prop; | |
616 | ||
617 | prop = drm_property_create(dev, | |
618 | DRM_MODE_PROP_BLOB | | |
619 | DRM_MODE_PROP_IMMUTABLE, | |
620 | "TILE", 0); | |
621 | if (!prop) | |
622 | return -ENOMEM; | |
623 | dev->mode_config.tile_property = prop; | |
624 | ||
625 | return 0; | |
626 | } | |
627 | ||
628 | /** | |
629 | * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties | |
630 | * @dev: DRM device | |
631 | * | |
632 | * Called by a driver the first time a DVI-I connector is made. | |
633 | */ | |
634 | int drm_mode_create_dvi_i_properties(struct drm_device *dev) | |
635 | { | |
636 | struct drm_property *dvi_i_selector; | |
637 | struct drm_property *dvi_i_subconnector; | |
638 | ||
639 | if (dev->mode_config.dvi_i_select_subconnector_property) | |
640 | return 0; | |
641 | ||
642 | dvi_i_selector = | |
643 | drm_property_create_enum(dev, 0, | |
644 | "select subconnector", | |
645 | drm_dvi_i_select_enum_list, | |
646 | ARRAY_SIZE(drm_dvi_i_select_enum_list)); | |
647 | dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; | |
648 | ||
649 | dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, | |
650 | "subconnector", | |
651 | drm_dvi_i_subconnector_enum_list, | |
652 | ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); | |
653 | dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; | |
654 | ||
655 | return 0; | |
656 | } | |
657 | EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); | |
658 | ||
659 | /** | |
660 | * drm_create_tv_properties - create TV specific connector properties | |
661 | * @dev: DRM device | |
662 | * @num_modes: number of different TV formats (modes) supported | |
663 | * @modes: array of pointers to strings containing name of each format | |
664 | * | |
665 | * Called by a driver's TV initialization routine, this function creates | |
666 | * the TV specific connector properties for a given device. Caller is | |
667 | * responsible for allocating a list of format names and passing them to | |
668 | * this routine. | |
669 | */ | |
670 | int drm_mode_create_tv_properties(struct drm_device *dev, | |
671 | unsigned int num_modes, | |
672 | const char * const modes[]) | |
673 | { | |
674 | struct drm_property *tv_selector; | |
675 | struct drm_property *tv_subconnector; | |
676 | unsigned int i; | |
677 | ||
678 | if (dev->mode_config.tv_select_subconnector_property) | |
679 | return 0; | |
680 | ||
681 | /* | |
682 | * Basic connector properties | |
683 | */ | |
684 | tv_selector = drm_property_create_enum(dev, 0, | |
685 | "select subconnector", | |
686 | drm_tv_select_enum_list, | |
687 | ARRAY_SIZE(drm_tv_select_enum_list)); | |
688 | if (!tv_selector) | |
689 | goto nomem; | |
690 | ||
691 | dev->mode_config.tv_select_subconnector_property = tv_selector; | |
692 | ||
693 | tv_subconnector = | |
694 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, | |
695 | "subconnector", | |
696 | drm_tv_subconnector_enum_list, | |
697 | ARRAY_SIZE(drm_tv_subconnector_enum_list)); | |
698 | if (!tv_subconnector) | |
699 | goto nomem; | |
700 | dev->mode_config.tv_subconnector_property = tv_subconnector; | |
701 | ||
702 | /* | |
703 | * Other, TV specific properties: margins & TV modes. | |
704 | */ | |
705 | dev->mode_config.tv_left_margin_property = | |
706 | drm_property_create_range(dev, 0, "left margin", 0, 100); | |
707 | if (!dev->mode_config.tv_left_margin_property) | |
708 | goto nomem; | |
709 | ||
710 | dev->mode_config.tv_right_margin_property = | |
711 | drm_property_create_range(dev, 0, "right margin", 0, 100); | |
712 | if (!dev->mode_config.tv_right_margin_property) | |
713 | goto nomem; | |
714 | ||
715 | dev->mode_config.tv_top_margin_property = | |
716 | drm_property_create_range(dev, 0, "top margin", 0, 100); | |
717 | if (!dev->mode_config.tv_top_margin_property) | |
718 | goto nomem; | |
719 | ||
720 | dev->mode_config.tv_bottom_margin_property = | |
721 | drm_property_create_range(dev, 0, "bottom margin", 0, 100); | |
722 | if (!dev->mode_config.tv_bottom_margin_property) | |
723 | goto nomem; | |
724 | ||
725 | dev->mode_config.tv_mode_property = | |
726 | drm_property_create(dev, DRM_MODE_PROP_ENUM, | |
727 | "mode", num_modes); | |
728 | if (!dev->mode_config.tv_mode_property) | |
729 | goto nomem; | |
730 | ||
731 | for (i = 0; i < num_modes; i++) | |
732 | drm_property_add_enum(dev->mode_config.tv_mode_property, i, | |
733 | i, modes[i]); | |
734 | ||
735 | dev->mode_config.tv_brightness_property = | |
736 | drm_property_create_range(dev, 0, "brightness", 0, 100); | |
737 | if (!dev->mode_config.tv_brightness_property) | |
738 | goto nomem; | |
739 | ||
740 | dev->mode_config.tv_contrast_property = | |
741 | drm_property_create_range(dev, 0, "contrast", 0, 100); | |
742 | if (!dev->mode_config.tv_contrast_property) | |
743 | goto nomem; | |
744 | ||
745 | dev->mode_config.tv_flicker_reduction_property = | |
746 | drm_property_create_range(dev, 0, "flicker reduction", 0, 100); | |
747 | if (!dev->mode_config.tv_flicker_reduction_property) | |
748 | goto nomem; | |
749 | ||
750 | dev->mode_config.tv_overscan_property = | |
751 | drm_property_create_range(dev, 0, "overscan", 0, 100); | |
752 | if (!dev->mode_config.tv_overscan_property) | |
753 | goto nomem; | |
754 | ||
755 | dev->mode_config.tv_saturation_property = | |
756 | drm_property_create_range(dev, 0, "saturation", 0, 100); | |
757 | if (!dev->mode_config.tv_saturation_property) | |
758 | goto nomem; | |
759 | ||
760 | dev->mode_config.tv_hue_property = | |
761 | drm_property_create_range(dev, 0, "hue", 0, 100); | |
762 | if (!dev->mode_config.tv_hue_property) | |
763 | goto nomem; | |
764 | ||
765 | return 0; | |
766 | nomem: | |
767 | return -ENOMEM; | |
768 | } | |
769 | EXPORT_SYMBOL(drm_mode_create_tv_properties); | |
770 | ||
771 | /** | |
772 | * drm_mode_create_scaling_mode_property - create scaling mode property | |
773 | * @dev: DRM device | |
774 | * | |
775 | * Called by a driver the first time it's needed, must be attached to desired | |
776 | * connectors. | |
777 | */ | |
778 | int drm_mode_create_scaling_mode_property(struct drm_device *dev) | |
779 | { | |
780 | struct drm_property *scaling_mode; | |
781 | ||
782 | if (dev->mode_config.scaling_mode_property) | |
783 | return 0; | |
784 | ||
785 | scaling_mode = | |
786 | drm_property_create_enum(dev, 0, "scaling mode", | |
787 | drm_scaling_mode_enum_list, | |
788 | ARRAY_SIZE(drm_scaling_mode_enum_list)); | |
789 | ||
790 | dev->mode_config.scaling_mode_property = scaling_mode; | |
791 | ||
792 | return 0; | |
793 | } | |
794 | EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); | |
795 | ||
796 | /** | |
797 | * drm_mode_create_aspect_ratio_property - create aspect ratio property | |
798 | * @dev: DRM device | |
799 | * | |
800 | * Called by a driver the first time it's needed, must be attached to desired | |
801 | * connectors. | |
802 | * | |
803 | * Returns: | |
804 | * Zero on success, negative errno on failure. | |
805 | */ | |
806 | int drm_mode_create_aspect_ratio_property(struct drm_device *dev) | |
807 | { | |
808 | if (dev->mode_config.aspect_ratio_property) | |
809 | return 0; | |
810 | ||
811 | dev->mode_config.aspect_ratio_property = | |
812 | drm_property_create_enum(dev, 0, "aspect ratio", | |
813 | drm_aspect_ratio_enum_list, | |
814 | ARRAY_SIZE(drm_aspect_ratio_enum_list)); | |
815 | ||
816 | if (dev->mode_config.aspect_ratio_property == NULL) | |
817 | return -ENOMEM; | |
818 | ||
819 | return 0; | |
820 | } | |
821 | EXPORT_SYMBOL(drm_mode_create_aspect_ratio_property); | |
822 | ||
823 | /** | |
824 | * drm_mode_create_suggested_offset_properties - create suggests offset properties | |
825 | * @dev: DRM device | |
826 | * | |
827 | * Create the the suggested x/y offset property for connectors. | |
828 | */ | |
829 | int drm_mode_create_suggested_offset_properties(struct drm_device *dev) | |
830 | { | |
831 | if (dev->mode_config.suggested_x_property && dev->mode_config.suggested_y_property) | |
832 | return 0; | |
833 | ||
834 | dev->mode_config.suggested_x_property = | |
835 | drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested X", 0, 0xffffffff); | |
836 | ||
837 | dev->mode_config.suggested_y_property = | |
838 | drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested Y", 0, 0xffffffff); | |
839 | ||
840 | if (dev->mode_config.suggested_x_property == NULL || | |
841 | dev->mode_config.suggested_y_property == NULL) | |
842 | return -ENOMEM; | |
843 | return 0; | |
844 | } | |
845 | EXPORT_SYMBOL(drm_mode_create_suggested_offset_properties); | |
846 | ||
847 | /** | |
848 | * drm_mode_connector_set_path_property - set tile property on connector | |
849 | * @connector: connector to set property on. | |
850 | * @path: path to use for property; must not be NULL. | |
851 | * | |
852 | * This creates a property to expose to userspace to specify a | |
853 | * connector path. This is mainly used for DisplayPort MST where | |
854 | * connectors have a topology and we want to allow userspace to give | |
855 | * them more meaningful names. | |
856 | * | |
857 | * Returns: | |
858 | * Zero on success, negative errno on failure. | |
859 | */ | |
860 | int drm_mode_connector_set_path_property(struct drm_connector *connector, | |
861 | const char *path) | |
862 | { | |
863 | struct drm_device *dev = connector->dev; | |
864 | int ret; | |
865 | ||
866 | ret = drm_property_replace_global_blob(dev, | |
867 | &connector->path_blob_ptr, | |
868 | strlen(path) + 1, | |
869 | path, | |
870 | &connector->base, | |
871 | dev->mode_config.path_property); | |
872 | return ret; | |
873 | } | |
874 | EXPORT_SYMBOL(drm_mode_connector_set_path_property); | |
875 | ||
876 | /** | |
877 | * drm_mode_connector_set_tile_property - set tile property on connector | |
878 | * @connector: connector to set property on. | |
879 | * | |
880 | * This looks up the tile information for a connector, and creates a | |
881 | * property for userspace to parse if it exists. The property is of | |
882 | * the form of 8 integers using ':' as a separator. | |
883 | * | |
884 | * Returns: | |
885 | * Zero on success, errno on failure. | |
886 | */ | |
887 | int drm_mode_connector_set_tile_property(struct drm_connector *connector) | |
888 | { | |
889 | struct drm_device *dev = connector->dev; | |
890 | char tile[256]; | |
891 | int ret; | |
892 | ||
893 | if (!connector->has_tile) { | |
894 | ret = drm_property_replace_global_blob(dev, | |
895 | &connector->tile_blob_ptr, | |
896 | 0, | |
897 | NULL, | |
898 | &connector->base, | |
899 | dev->mode_config.tile_property); | |
900 | return ret; | |
901 | } | |
902 | ||
903 | snprintf(tile, 256, "%d:%d:%d:%d:%d:%d:%d:%d", | |
904 | connector->tile_group->id, connector->tile_is_single_monitor, | |
905 | connector->num_h_tile, connector->num_v_tile, | |
906 | connector->tile_h_loc, connector->tile_v_loc, | |
907 | connector->tile_h_size, connector->tile_v_size); | |
908 | ||
909 | ret = drm_property_replace_global_blob(dev, | |
910 | &connector->tile_blob_ptr, | |
911 | strlen(tile) + 1, | |
912 | tile, | |
913 | &connector->base, | |
914 | dev->mode_config.tile_property); | |
915 | return ret; | |
916 | } | |
917 | EXPORT_SYMBOL(drm_mode_connector_set_tile_property); | |
918 | ||
919 | /** | |
920 | * drm_mode_connector_update_edid_property - update the edid property of a connector | |
921 | * @connector: drm connector | |
922 | * @edid: new value of the edid property | |
923 | * | |
924 | * This function creates a new blob modeset object and assigns its id to the | |
925 | * connector's edid property. | |
926 | * | |
927 | * Returns: | |
928 | * Zero on success, negative errno on failure. | |
929 | */ | |
930 | int drm_mode_connector_update_edid_property(struct drm_connector *connector, | |
931 | const struct edid *edid) | |
932 | { | |
933 | struct drm_device *dev = connector->dev; | |
934 | size_t size = 0; | |
935 | int ret; | |
936 | ||
937 | /* ignore requests to set edid when overridden */ | |
938 | if (connector->override_edid) | |
939 | return 0; | |
940 | ||
941 | if (edid) | |
942 | size = EDID_LENGTH * (1 + edid->extensions); | |
943 | ||
944 | ret = drm_property_replace_global_blob(dev, | |
945 | &connector->edid_blob_ptr, | |
946 | size, | |
947 | edid, | |
948 | &connector->base, | |
949 | dev->mode_config.edid_property); | |
950 | return ret; | |
951 | } | |
952 | EXPORT_SYMBOL(drm_mode_connector_update_edid_property); | |
953 | ||
954 | int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, | |
955 | struct drm_property *property, | |
956 | uint64_t value) | |
957 | { | |
958 | int ret = -EINVAL; | |
959 | struct drm_connector *connector = obj_to_connector(obj); | |
960 | ||
961 | /* Do DPMS ourselves */ | |
962 | if (property == connector->dev->mode_config.dpms_property) { | |
963 | ret = (*connector->funcs->dpms)(connector, (int)value); | |
964 | } else if (connector->funcs->set_property) | |
965 | ret = connector->funcs->set_property(connector, property, value); | |
966 | ||
967 | /* store the property value if successful */ | |
968 | if (!ret) | |
969 | drm_object_property_set_value(&connector->base, property, value); | |
970 | return ret; | |
971 | } | |
972 | ||
973 | int drm_mode_connector_property_set_ioctl(struct drm_device *dev, | |
974 | void *data, struct drm_file *file_priv) | |
975 | { | |
976 | struct drm_mode_connector_set_property *conn_set_prop = data; | |
977 | struct drm_mode_obj_set_property obj_set_prop = { | |
978 | .value = conn_set_prop->value, | |
979 | .prop_id = conn_set_prop->prop_id, | |
980 | .obj_id = conn_set_prop->connector_id, | |
981 | .obj_type = DRM_MODE_OBJECT_CONNECTOR | |
982 | }; | |
983 | ||
984 | /* It does all the locking and checking we need */ | |
985 | return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv); | |
986 | } | |
987 | ||
988 | static struct drm_encoder *drm_connector_get_encoder(struct drm_connector *connector) | |
989 | { | |
990 | /* For atomic drivers only state objects are synchronously updated and | |
991 | * protected by modeset locks, so check those first. */ | |
992 | if (connector->state) | |
993 | return connector->state->best_encoder; | |
994 | return connector->encoder; | |
995 | } | |
996 | ||
997 | static bool drm_mode_expose_to_userspace(const struct drm_display_mode *mode, | |
998 | const struct drm_file *file_priv) | |
999 | { | |
1000 | /* | |
1001 | * If user-space hasn't configured the driver to expose the stereo 3D | |
1002 | * modes, don't expose them. | |
1003 | */ | |
1004 | if (!file_priv->stereo_allowed && drm_mode_is_stereo(mode)) | |
1005 | return false; | |
1006 | ||
1007 | return true; | |
1008 | } | |
1009 | ||
1010 | int drm_mode_getconnector(struct drm_device *dev, void *data, | |
1011 | struct drm_file *file_priv) | |
1012 | { | |
1013 | struct drm_mode_get_connector *out_resp = data; | |
1014 | struct drm_connector *connector; | |
1015 | struct drm_encoder *encoder; | |
1016 | struct drm_display_mode *mode; | |
1017 | int mode_count = 0; | |
1018 | int encoders_count = 0; | |
1019 | int ret = 0; | |
1020 | int copied = 0; | |
1021 | int i; | |
1022 | struct drm_mode_modeinfo u_mode; | |
1023 | struct drm_mode_modeinfo __user *mode_ptr; | |
1024 | uint32_t __user *encoder_ptr; | |
1025 | ||
1026 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
1027 | return -EINVAL; | |
1028 | ||
1029 | memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); | |
1030 | ||
1031 | mutex_lock(&dev->mode_config.mutex); | |
1032 | ||
1033 | connector = drm_connector_lookup(dev, out_resp->connector_id); | |
1034 | if (!connector) { | |
1035 | ret = -ENOENT; | |
1036 | goto out_unlock; | |
1037 | } | |
1038 | ||
1039 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) | |
1040 | if (connector->encoder_ids[i] != 0) | |
1041 | encoders_count++; | |
1042 | ||
1043 | if (out_resp->count_modes == 0) { | |
1044 | connector->funcs->fill_modes(connector, | |
1045 | dev->mode_config.max_width, | |
1046 | dev->mode_config.max_height); | |
1047 | } | |
1048 | ||
1049 | /* delayed so we get modes regardless of pre-fill_modes state */ | |
1050 | list_for_each_entry(mode, &connector->modes, head) | |
1051 | if (drm_mode_expose_to_userspace(mode, file_priv)) | |
1052 | mode_count++; | |
1053 | ||
1054 | out_resp->connector_id = connector->base.id; | |
1055 | out_resp->connector_type = connector->connector_type; | |
1056 | out_resp->connector_type_id = connector->connector_type_id; | |
1057 | out_resp->mm_width = connector->display_info.width_mm; | |
1058 | out_resp->mm_height = connector->display_info.height_mm; | |
1059 | out_resp->subpixel = connector->display_info.subpixel_order; | |
1060 | out_resp->connection = connector->status; | |
1061 | ||
1062 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); | |
1063 | encoder = drm_connector_get_encoder(connector); | |
1064 | if (encoder) | |
1065 | out_resp->encoder_id = encoder->base.id; | |
1066 | else | |
1067 | out_resp->encoder_id = 0; | |
1068 | ||
1069 | /* | |
1070 | * This ioctl is called twice, once to determine how much space is | |
1071 | * needed, and the 2nd time to fill it. | |
1072 | */ | |
1073 | if ((out_resp->count_modes >= mode_count) && mode_count) { | |
1074 | copied = 0; | |
1075 | mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; | |
1076 | list_for_each_entry(mode, &connector->modes, head) { | |
1077 | if (!drm_mode_expose_to_userspace(mode, file_priv)) | |
1078 | continue; | |
1079 | ||
1080 | drm_mode_convert_to_umode(&u_mode, mode); | |
1081 | if (copy_to_user(mode_ptr + copied, | |
1082 | &u_mode, sizeof(u_mode))) { | |
1083 | ret = -EFAULT; | |
1084 | goto out; | |
1085 | } | |
1086 | copied++; | |
1087 | } | |
1088 | } | |
1089 | out_resp->count_modes = mode_count; | |
1090 | ||
1091 | ret = drm_mode_object_get_properties(&connector->base, file_priv->atomic, | |
1092 | (uint32_t __user *)(unsigned long)(out_resp->props_ptr), | |
1093 | (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr), | |
1094 | &out_resp->count_props); | |
1095 | if (ret) | |
1096 | goto out; | |
1097 | ||
1098 | if ((out_resp->count_encoders >= encoders_count) && encoders_count) { | |
1099 | copied = 0; | |
1100 | encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); | |
1101 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { | |
1102 | if (connector->encoder_ids[i] != 0) { | |
1103 | if (put_user(connector->encoder_ids[i], | |
1104 | encoder_ptr + copied)) { | |
1105 | ret = -EFAULT; | |
1106 | goto out; | |
1107 | } | |
1108 | copied++; | |
1109 | } | |
1110 | } | |
1111 | } | |
1112 | out_resp->count_encoders = encoders_count; | |
1113 | ||
1114 | out: | |
1115 | drm_modeset_unlock(&dev->mode_config.connection_mutex); | |
1116 | ||
1117 | drm_connector_unreference(connector); | |
1118 | out_unlock: | |
1119 | mutex_unlock(&dev->mode_config.mutex); | |
1120 | ||
1121 | return ret; | |
1122 | } | |
1123 |