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aead40ea TR |
1 | /* |
2 | * Copyright (C) 2013, NVIDIA Corporation. All rights reserved. | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a | |
5 | * copy of this software and associated documentation files (the "Software"), | |
6 | * to deal in the Software without restriction, including without limitation | |
7 | * the rights to use, copy, modify, merge, publish, distribute, sub license, | |
8 | * and/or sell copies of the Software, and to permit persons to whom the | |
9 | * Software is furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice (including the | |
12 | * next paragraph) shall be included in all copies or substantial portions | |
13 | * of the Software. | |
14 | * | |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL | |
18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | |
21 | * DEALINGS IN THE SOFTWARE. | |
22 | */ | |
23 | ||
152dbdea | 24 | #include <linux/backlight.h> |
aead40ea TR |
25 | #include <linux/err.h> |
26 | #include <linux/module.h> | |
27 | ||
28 | #include <drm/drm_crtc.h> | |
29 | #include <drm/drm_panel.h> | |
152dbdea | 30 | #include <drm/drm_print.h> |
aead40ea TR |
31 | |
32 | static DEFINE_MUTEX(panel_lock); | |
33 | static LIST_HEAD(panel_list); | |
34 | ||
83127f67 TR |
35 | /** |
36 | * DOC: drm panel | |
37 | * | |
38 | * The DRM panel helpers allow drivers to register panel objects with a | |
39 | * central registry and provide functions to retrieve those panels in display | |
40 | * drivers. | |
0aa5eb3a SV |
41 | * |
42 | * For easy integration into drivers using the &drm_bridge infrastructure please | |
43 | * take look at drm_panel_bridge_add() and devm_drm_panel_bridge_add(). | |
83127f67 TR |
44 | */ |
45 | ||
46 | /** | |
47 | * drm_panel_init - initialize a panel | |
48 | * @panel: DRM panel | |
6dbe0c4b LP |
49 | * @dev: parent device of the panel |
50 | * @funcs: panel operations | |
9a2654c0 LP |
51 | * @connector_type: the connector type (DRM_MODE_CONNECTOR_*) corresponding to |
52 | * the panel interface | |
83127f67 | 53 | * |
6dbe0c4b LP |
54 | * Initialize the panel structure for subsequent registration with |
55 | * drm_panel_add(). | |
83127f67 | 56 | */ |
6dbe0c4b | 57 | void drm_panel_init(struct drm_panel *panel, struct device *dev, |
9a2654c0 | 58 | const struct drm_panel_funcs *funcs, int connector_type) |
aead40ea TR |
59 | { |
60 | INIT_LIST_HEAD(&panel->list); | |
de087416 DA |
61 | INIT_LIST_HEAD(&panel->followers); |
62 | mutex_init(&panel->follower_lock); | |
6dbe0c4b LP |
63 | panel->dev = dev; |
64 | panel->funcs = funcs; | |
9a2654c0 | 65 | panel->connector_type = connector_type; |
aead40ea TR |
66 | } |
67 | EXPORT_SYMBOL(drm_panel_init); | |
68 | ||
83127f67 TR |
69 | /** |
70 | * drm_panel_add - add a panel to the global registry | |
71 | * @panel: panel to add | |
72 | * | |
73 | * Add a panel to the global registry so that it can be looked up by display | |
74 | * drivers. | |
83127f67 | 75 | */ |
c3ee8c65 | 76 | void drm_panel_add(struct drm_panel *panel) |
aead40ea TR |
77 | { |
78 | mutex_lock(&panel_lock); | |
79 | list_add_tail(&panel->list, &panel_list); | |
80 | mutex_unlock(&panel_lock); | |
aead40ea TR |
81 | } |
82 | EXPORT_SYMBOL(drm_panel_add); | |
83 | ||
83127f67 TR |
84 | /** |
85 | * drm_panel_remove - remove a panel from the global registry | |
86 | * @panel: DRM panel | |
87 | * | |
88 | * Removes a panel from the global registry. | |
89 | */ | |
aead40ea TR |
90 | void drm_panel_remove(struct drm_panel *panel) |
91 | { | |
92 | mutex_lock(&panel_lock); | |
93 | list_del_init(&panel->list); | |
94 | mutex_unlock(&panel_lock); | |
95 | } | |
96 | EXPORT_SYMBOL(drm_panel_remove); | |
97 | ||
7a833d30 SR |
98 | /** |
99 | * drm_panel_prepare - power on a panel | |
100 | * @panel: DRM panel | |
101 | * | |
102 | * Calling this function will enable power and deassert any reset signals to | |
103 | * the panel. After this has completed it is possible to communicate with any | |
104 | * integrated circuitry via a command bus. | |
105 | * | |
106 | * Return: 0 on success or a negative error code on failure. | |
107 | */ | |
108 | int drm_panel_prepare(struct drm_panel *panel) | |
109 | { | |
de087416 | 110 | struct drm_panel_follower *follower; |
d2aacaf0 DA |
111 | int ret; |
112 | ||
5dce87a9 SR |
113 | if (!panel) |
114 | return -EINVAL; | |
115 | ||
d2aacaf0 DA |
116 | if (panel->prepared) { |
117 | dev_warn(panel->dev, "Skipping prepare of already prepared panel\n"); | |
118 | return 0; | |
119 | } | |
120 | ||
de087416 DA |
121 | mutex_lock(&panel->follower_lock); |
122 | ||
d2aacaf0 DA |
123 | if (panel->funcs && panel->funcs->prepare) { |
124 | ret = panel->funcs->prepare(panel); | |
125 | if (ret < 0) | |
de087416 | 126 | goto exit; |
d2aacaf0 DA |
127 | } |
128 | panel->prepared = true; | |
7a833d30 | 129 | |
de087416 DA |
130 | list_for_each_entry(follower, &panel->followers, list) { |
131 | ret = follower->funcs->panel_prepared(follower); | |
132 | if (ret < 0) | |
133 | dev_info(panel->dev, "%ps failed: %d\n", | |
134 | follower->funcs->panel_prepared, ret); | |
135 | } | |
136 | ||
137 | ret = 0; | |
138 | exit: | |
139 | mutex_unlock(&panel->follower_lock); | |
140 | ||
141 | return ret; | |
7a833d30 SR |
142 | } |
143 | EXPORT_SYMBOL(drm_panel_prepare); | |
144 | ||
145 | /** | |
146 | * drm_panel_unprepare - power off a panel | |
147 | * @panel: DRM panel | |
148 | * | |
149 | * Calling this function will completely power off a panel (assert the panel's | |
150 | * reset, turn off power supplies, ...). After this function has completed, it | |
151 | * is usually no longer possible to communicate with the panel until another | |
152 | * call to drm_panel_prepare(). | |
153 | * | |
154 | * Return: 0 on success or a negative error code on failure. | |
155 | */ | |
156 | int drm_panel_unprepare(struct drm_panel *panel) | |
157 | { | |
de087416 | 158 | struct drm_panel_follower *follower; |
d2aacaf0 DA |
159 | int ret; |
160 | ||
5dce87a9 SR |
161 | if (!panel) |
162 | return -EINVAL; | |
163 | ||
d2aacaf0 DA |
164 | if (!panel->prepared) { |
165 | dev_warn(panel->dev, "Skipping unprepare of already unprepared panel\n"); | |
166 | return 0; | |
167 | } | |
168 | ||
de087416 DA |
169 | mutex_lock(&panel->follower_lock); |
170 | ||
171 | list_for_each_entry(follower, &panel->followers, list) { | |
172 | ret = follower->funcs->panel_unpreparing(follower); | |
173 | if (ret < 0) | |
174 | dev_info(panel->dev, "%ps failed: %d\n", | |
175 | follower->funcs->panel_unpreparing, ret); | |
176 | } | |
177 | ||
d2aacaf0 DA |
178 | if (panel->funcs && panel->funcs->unprepare) { |
179 | ret = panel->funcs->unprepare(panel); | |
180 | if (ret < 0) | |
de087416 | 181 | goto exit; |
d2aacaf0 DA |
182 | } |
183 | panel->prepared = false; | |
7a833d30 | 184 | |
de087416 DA |
185 | ret = 0; |
186 | exit: | |
187 | mutex_unlock(&panel->follower_lock); | |
188 | ||
189 | return ret; | |
7a833d30 SR |
190 | } |
191 | EXPORT_SYMBOL(drm_panel_unprepare); | |
192 | ||
193 | /** | |
194 | * drm_panel_enable - enable a panel | |
195 | * @panel: DRM panel | |
196 | * | |
197 | * Calling this function will cause the panel display drivers to be turned on | |
198 | * and the backlight to be enabled. Content will be visible on screen after | |
199 | * this call completes. | |
200 | * | |
201 | * Return: 0 on success or a negative error code on failure. | |
202 | */ | |
203 | int drm_panel_enable(struct drm_panel *panel) | |
204 | { | |
152dbdea SR |
205 | int ret; |
206 | ||
5dce87a9 SR |
207 | if (!panel) |
208 | return -EINVAL; | |
209 | ||
d2aacaf0 DA |
210 | if (panel->enabled) { |
211 | dev_warn(panel->dev, "Skipping enable of already enabled panel\n"); | |
212 | return 0; | |
213 | } | |
214 | ||
152dbdea SR |
215 | if (panel->funcs && panel->funcs->enable) { |
216 | ret = panel->funcs->enable(panel); | |
217 | if (ret < 0) | |
218 | return ret; | |
219 | } | |
d2aacaf0 | 220 | panel->enabled = true; |
152dbdea SR |
221 | |
222 | ret = backlight_enable(panel->backlight); | |
223 | if (ret < 0) | |
224 | DRM_DEV_INFO(panel->dev, "failed to enable backlight: %d\n", | |
225 | ret); | |
7a833d30 | 226 | |
5dce87a9 | 227 | return 0; |
7a833d30 SR |
228 | } |
229 | EXPORT_SYMBOL(drm_panel_enable); | |
230 | ||
231 | /** | |
232 | * drm_panel_disable - disable a panel | |
233 | * @panel: DRM panel | |
234 | * | |
235 | * This will typically turn off the panel's backlight or disable the display | |
236 | * drivers. For smart panels it should still be possible to communicate with | |
237 | * the integrated circuitry via any command bus after this call. | |
238 | * | |
239 | * Return: 0 on success or a negative error code on failure. | |
240 | */ | |
241 | int drm_panel_disable(struct drm_panel *panel) | |
242 | { | |
152dbdea SR |
243 | int ret; |
244 | ||
5dce87a9 SR |
245 | if (!panel) |
246 | return -EINVAL; | |
247 | ||
d2aacaf0 DA |
248 | if (!panel->enabled) { |
249 | dev_warn(panel->dev, "Skipping disable of already disabled panel\n"); | |
250 | return 0; | |
251 | } | |
252 | ||
152dbdea SR |
253 | ret = backlight_disable(panel->backlight); |
254 | if (ret < 0) | |
255 | DRM_DEV_INFO(panel->dev, "failed to disable backlight: %d\n", | |
256 | ret); | |
257 | ||
d2aacaf0 DA |
258 | if (panel->funcs && panel->funcs->disable) { |
259 | ret = panel->funcs->disable(panel); | |
260 | if (ret < 0) | |
261 | return ret; | |
262 | } | |
263 | panel->enabled = false; | |
7a833d30 | 264 | |
5dce87a9 | 265 | return 0; |
7a833d30 SR |
266 | } |
267 | EXPORT_SYMBOL(drm_panel_disable); | |
268 | ||
269 | /** | |
270 | * drm_panel_get_modes - probe the available display modes of a panel | |
271 | * @panel: DRM panel | |
06c4a9c2 | 272 | * @connector: DRM connector |
7a833d30 SR |
273 | * |
274 | * The modes probed from the panel are automatically added to the connector | |
275 | * that the panel is attached to. | |
276 | * | |
277 | * Return: The number of modes available from the panel on success or a | |
278 | * negative error code on failure. | |
279 | */ | |
06c4a9c2 SR |
280 | int drm_panel_get_modes(struct drm_panel *panel, |
281 | struct drm_connector *connector) | |
7a833d30 | 282 | { |
5dce87a9 SR |
283 | if (!panel) |
284 | return -EINVAL; | |
285 | ||
286 | if (panel->funcs && panel->funcs->get_modes) | |
06c4a9c2 | 287 | return panel->funcs->get_modes(panel, connector); |
7a833d30 | 288 | |
5dce87a9 | 289 | return -EOPNOTSUPP; |
7a833d30 SR |
290 | } |
291 | EXPORT_SYMBOL(drm_panel_get_modes); | |
292 | ||
aead40ea | 293 | #ifdef CONFIG_OF |
83127f67 TR |
294 | /** |
295 | * of_drm_find_panel - look up a panel using a device tree node | |
296 | * @np: device tree node of the panel | |
297 | * | |
298 | * Searches the set of registered panels for one that matches the given device | |
299 | * tree node. If a matching panel is found, return a pointer to it. | |
300 | * | |
301 | * Return: A pointer to the panel registered for the specified device tree | |
5fa8e4a2 | 302 | * node or an ERR_PTR() if no panel matching the device tree node can be found. |
3eb3cd04 | 303 | * |
c59eb3cf | 304 | * Possible error codes returned by this function: |
3eb3cd04 | 305 | * |
c59eb3cf BB |
306 | * - EPROBE_DEFER: the panel device has not been probed yet, and the caller |
307 | * should retry later | |
308 | * - ENODEV: the device is not available (status != "okay" or "ok") | |
83127f67 | 309 | */ |
327bc443 | 310 | struct drm_panel *of_drm_find_panel(const struct device_node *np) |
aead40ea TR |
311 | { |
312 | struct drm_panel *panel; | |
313 | ||
c59eb3cf BB |
314 | if (!of_device_is_available(np)) |
315 | return ERR_PTR(-ENODEV); | |
316 | ||
aead40ea TR |
317 | mutex_lock(&panel_lock); |
318 | ||
319 | list_for_each_entry(panel, &panel_list, list) { | |
320 | if (panel->dev->of_node == np) { | |
321 | mutex_unlock(&panel_lock); | |
322 | return panel; | |
323 | } | |
324 | } | |
325 | ||
326 | mutex_unlock(&panel_lock); | |
5fa8e4a2 | 327 | return ERR_PTR(-EPROBE_DEFER); |
aead40ea TR |
328 | } |
329 | EXPORT_SYMBOL(of_drm_find_panel); | |
5f3e7503 DB |
330 | |
331 | /** | |
332 | * of_drm_get_panel_orientation - look up the orientation of the panel through | |
333 | * the "rotation" binding from a device tree node | |
334 | * @np: device tree node of the panel | |
335 | * @orientation: orientation enum to be filled in | |
336 | * | |
337 | * Looks up the rotation of a panel in the device tree. The orientation of the | |
338 | * panel is expressed as a property name "rotation" in the device tree. The | |
339 | * rotation in the device tree is counter clockwise. | |
340 | * | |
341 | * Return: 0 when a valid rotation value (0, 90, 180, or 270) is read or the | |
342 | * rotation property doesn't exist. Return a negative error code on failure. | |
343 | */ | |
344 | int of_drm_get_panel_orientation(const struct device_node *np, | |
345 | enum drm_panel_orientation *orientation) | |
346 | { | |
347 | int rotation, ret; | |
348 | ||
349 | ret = of_property_read_u32(np, "rotation", &rotation); | |
350 | if (ret == -EINVAL) { | |
351 | /* Don't return an error if there's no rotation property. */ | |
352 | *orientation = DRM_MODE_PANEL_ORIENTATION_UNKNOWN; | |
353 | return 0; | |
354 | } | |
355 | ||
356 | if (ret < 0) | |
357 | return ret; | |
358 | ||
359 | if (rotation == 0) | |
360 | *orientation = DRM_MODE_PANEL_ORIENTATION_NORMAL; | |
361 | else if (rotation == 90) | |
362 | *orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP; | |
363 | else if (rotation == 180) | |
364 | *orientation = DRM_MODE_PANEL_ORIENTATION_BOTTOM_UP; | |
365 | else if (rotation == 270) | |
366 | *orientation = DRM_MODE_PANEL_ORIENTATION_LEFT_UP; | |
367 | else | |
368 | return -EINVAL; | |
369 | ||
370 | return 0; | |
371 | } | |
372 | EXPORT_SYMBOL(of_drm_get_panel_orientation); | |
aead40ea TR |
373 | #endif |
374 | ||
de087416 DA |
375 | /** |
376 | * drm_is_panel_follower() - Check if the device is a panel follower | |
377 | * @dev: The 'struct device' to check | |
378 | * | |
379 | * This checks to see if a device needs to be power sequenced together with | |
380 | * a panel using the panel follower API. | |
381 | * At the moment panels can only be followed on device tree enabled systems. | |
382 | * The "panel" property of the follower points to the panel to be followed. | |
383 | * | |
384 | * Return: true if we should be power sequenced with a panel; false otherwise. | |
385 | */ | |
386 | bool drm_is_panel_follower(struct device *dev) | |
387 | { | |
388 | /* | |
389 | * The "panel" property is actually a phandle, but for simplicity we | |
390 | * don't bother trying to parse it here. We just need to know if the | |
391 | * property is there. | |
392 | */ | |
393 | return of_property_read_bool(dev->of_node, "panel"); | |
394 | } | |
395 | EXPORT_SYMBOL(drm_is_panel_follower); | |
396 | ||
397 | /** | |
398 | * drm_panel_add_follower() - Register something to follow panel state. | |
399 | * @follower_dev: The 'struct device' for the follower. | |
400 | * @follower: The panel follower descriptor for the follower. | |
401 | * | |
402 | * A panel follower is called right after preparing the panel and right before | |
403 | * unpreparing the panel. It's primary intention is to power on an associated | |
404 | * touchscreen, though it could be used for any similar devices. Multiple | |
405 | * devices are allowed the follow the same panel. | |
406 | * | |
407 | * If a follower is added to a panel that's already been turned on, the | |
408 | * follower's prepare callback is called right away. | |
409 | * | |
410 | * At the moment panels can only be followed on device tree enabled systems. | |
411 | * The "panel" property of the follower points to the panel to be followed. | |
412 | * | |
413 | * Return: 0 or an error code. Note that -ENODEV means that we detected that | |
414 | * follower_dev is not actually following a panel. The caller may | |
415 | * choose to ignore this return value if following a panel is optional. | |
416 | */ | |
417 | int drm_panel_add_follower(struct device *follower_dev, | |
418 | struct drm_panel_follower *follower) | |
419 | { | |
420 | struct device_node *panel_np; | |
421 | struct drm_panel *panel; | |
422 | int ret; | |
423 | ||
424 | panel_np = of_parse_phandle(follower_dev->of_node, "panel", 0); | |
425 | if (!panel_np) | |
426 | return -ENODEV; | |
427 | ||
428 | panel = of_drm_find_panel(panel_np); | |
429 | of_node_put(panel_np); | |
430 | if (IS_ERR(panel)) | |
431 | return PTR_ERR(panel); | |
432 | ||
433 | get_device(panel->dev); | |
434 | follower->panel = panel; | |
435 | ||
436 | mutex_lock(&panel->follower_lock); | |
437 | ||
438 | list_add_tail(&follower->list, &panel->followers); | |
439 | if (panel->prepared) { | |
440 | ret = follower->funcs->panel_prepared(follower); | |
441 | if (ret < 0) | |
442 | dev_info(panel->dev, "%ps failed: %d\n", | |
443 | follower->funcs->panel_prepared, ret); | |
444 | } | |
445 | ||
446 | mutex_unlock(&panel->follower_lock); | |
447 | ||
448 | return 0; | |
449 | } | |
450 | EXPORT_SYMBOL(drm_panel_add_follower); | |
451 | ||
452 | /** | |
453 | * drm_panel_remove_follower() - Reverse drm_panel_add_follower(). | |
454 | * @follower: The panel follower descriptor for the follower. | |
455 | * | |
456 | * Undo drm_panel_add_follower(). This includes calling the follower's | |
457 | * unprepare function if we're removed from a panel that's currently prepared. | |
458 | * | |
459 | * Return: 0 or an error code. | |
460 | */ | |
461 | void drm_panel_remove_follower(struct drm_panel_follower *follower) | |
462 | { | |
463 | struct drm_panel *panel = follower->panel; | |
464 | int ret; | |
465 | ||
466 | mutex_lock(&panel->follower_lock); | |
467 | ||
468 | if (panel->prepared) { | |
469 | ret = follower->funcs->panel_unpreparing(follower); | |
470 | if (ret < 0) | |
471 | dev_info(panel->dev, "%ps failed: %d\n", | |
472 | follower->funcs->panel_unpreparing, ret); | |
473 | } | |
474 | list_del_init(&follower->list); | |
475 | ||
476 | mutex_unlock(&panel->follower_lock); | |
477 | ||
478 | put_device(panel->dev); | |
479 | } | |
480 | EXPORT_SYMBOL(drm_panel_remove_follower); | |
481 | ||
482 | static void drm_panel_remove_follower_void(void *follower) | |
483 | { | |
484 | drm_panel_remove_follower(follower); | |
485 | } | |
486 | ||
487 | /** | |
488 | * devm_drm_panel_add_follower() - devm version of drm_panel_add_follower() | |
489 | * @follower_dev: The 'struct device' for the follower. | |
490 | * @follower: The panel follower descriptor for the follower. | |
491 | * | |
492 | * Handles calling drm_panel_remove_follower() using devm on the follower_dev. | |
493 | * | |
494 | * Return: 0 or an error code. | |
495 | */ | |
496 | int devm_drm_panel_add_follower(struct device *follower_dev, | |
497 | struct drm_panel_follower *follower) | |
498 | { | |
499 | int ret; | |
500 | ||
501 | ret = drm_panel_add_follower(follower_dev, follower); | |
502 | if (ret) | |
503 | return ret; | |
504 | ||
505 | return devm_add_action_or_reset(follower_dev, | |
506 | drm_panel_remove_follower_void, follower); | |
507 | } | |
508 | EXPORT_SYMBOL(devm_drm_panel_add_follower); | |
509 | ||
4a34a9dc | 510 | #if IS_REACHABLE(CONFIG_BACKLIGHT_CLASS_DEVICE) |
152dbdea SR |
511 | /** |
512 | * drm_panel_of_backlight - use backlight device node for backlight | |
513 | * @panel: DRM panel | |
514 | * | |
515 | * Use this function to enable backlight handling if your panel | |
516 | * uses device tree and has a backlight phandle. | |
517 | * | |
518 | * When the panel is enabled backlight will be enabled after a | |
519 | * successful call to &drm_panel_funcs.enable() | |
520 | * | |
521 | * When the panel is disabled backlight will be disabled before the | |
522 | * call to &drm_panel_funcs.disable(). | |
523 | * | |
524 | * A typical implementation for a panel driver supporting device tree | |
525 | * will call this function at probe time. Backlight will then be handled | |
526 | * transparently without requiring any intervention from the driver. | |
527 | * drm_panel_of_backlight() must be called after the call to drm_panel_init(). | |
528 | * | |
529 | * Return: 0 on success or a negative error code on failure. | |
530 | */ | |
531 | int drm_panel_of_backlight(struct drm_panel *panel) | |
532 | { | |
533 | struct backlight_device *backlight; | |
534 | ||
535 | if (!panel || !panel->dev) | |
536 | return -EINVAL; | |
537 | ||
538 | backlight = devm_of_find_backlight(panel->dev); | |
539 | ||
540 | if (IS_ERR(backlight)) | |
541 | return PTR_ERR(backlight); | |
542 | ||
543 | panel->backlight = backlight; | |
544 | return 0; | |
545 | } | |
546 | EXPORT_SYMBOL(drm_panel_of_backlight); | |
547 | #endif | |
548 | ||
aead40ea TR |
549 | MODULE_AUTHOR("Thierry Reding <treding@nvidia.com>"); |
550 | MODULE_DESCRIPTION("DRM panel infrastructure"); | |
551 | MODULE_LICENSE("GPL and additional rights"); |