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f453ba04 DA |
1 | /* |
2 | * Copyright (c) 2006-2008 Intel Corporation | |
3 | * Copyright (c) 2007 Dave Airlie <airlied@linux.ie> | |
4 | * Copyright (c) 2008 Red Hat Inc. | |
5 | * | |
6 | * DRM core CRTC related functions | |
7 | * | |
8 | * Permission to use, copy, modify, distribute, and sell this software and its | |
9 | * documentation for any purpose is hereby granted without fee, provided that | |
10 | * the above copyright notice appear in all copies and that both that copyright | |
11 | * notice and this permission notice appear in supporting documentation, and | |
12 | * that the name of the copyright holders not be used in advertising or | |
13 | * publicity pertaining to distribution of the software without specific, | |
14 | * written prior permission. The copyright holders make no representations | |
15 | * about the suitability of this software for any purpose. It is provided "as | |
16 | * is" without express or implied warranty. | |
17 | * | |
18 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, | |
19 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO | |
20 | * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR | |
21 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, | |
22 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER | |
23 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE | |
24 | * OF THIS SOFTWARE. | |
25 | * | |
26 | * Authors: | |
27 | * Keith Packard | |
28 | * Eric Anholt <eric@anholt.net> | |
29 | * Dave Airlie <airlied@linux.ie> | |
30 | * Jesse Barnes <jesse.barnes@intel.com> | |
31 | */ | |
32 | #include <linux/list.h> | |
5a0e3ad6 | 33 | #include <linux/slab.h> |
2d1a8a48 | 34 | #include <linux/export.h> |
760285e7 DH |
35 | #include <drm/drmP.h> |
36 | #include <drm/drm_crtc.h> | |
37 | #include <drm/drm_edid.h> | |
38 | #include <drm/drm_fourcc.h> | |
f453ba04 | 39 | |
84849903 DV |
40 | /** |
41 | * drm_modeset_lock_all - take all modeset locks | |
42 | * @dev: drm device | |
43 | * | |
44 | * This function takes all modeset locks, suitable where a more fine-grained | |
45 | * scheme isn't (yet) implemented. | |
46 | */ | |
47 | void drm_modeset_lock_all(struct drm_device *dev) | |
48 | { | |
29494c17 DV |
49 | struct drm_crtc *crtc; |
50 | ||
84849903 | 51 | mutex_lock(&dev->mode_config.mutex); |
29494c17 DV |
52 | |
53 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) | |
54 | mutex_lock_nest_lock(&crtc->mutex, &dev->mode_config.mutex); | |
84849903 DV |
55 | } |
56 | EXPORT_SYMBOL(drm_modeset_lock_all); | |
57 | ||
58 | /** | |
59 | * drm_modeset_unlock_all - drop all modeset locks | |
60 | * @dev: device | |
61 | */ | |
62 | void drm_modeset_unlock_all(struct drm_device *dev) | |
63 | { | |
29494c17 DV |
64 | struct drm_crtc *crtc; |
65 | ||
66 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) | |
67 | mutex_unlock(&crtc->mutex); | |
68 | ||
84849903 DV |
69 | mutex_unlock(&dev->mode_config.mutex); |
70 | } | |
36206361 | 71 | |
84849903 DV |
72 | EXPORT_SYMBOL(drm_modeset_unlock_all); |
73 | ||
f453ba04 DA |
74 | /* Avoid boilerplate. I'm tired of typing. */ |
75 | #define DRM_ENUM_NAME_FN(fnname, list) \ | |
76 | char *fnname(int val) \ | |
77 | { \ | |
78 | int i; \ | |
79 | for (i = 0; i < ARRAY_SIZE(list); i++) { \ | |
80 | if (list[i].type == val) \ | |
81 | return list[i].name; \ | |
82 | } \ | |
83 | return "(unknown)"; \ | |
84 | } | |
85 | ||
86 | /* | |
87 | * Global properties | |
88 | */ | |
89 | static struct drm_prop_enum_list drm_dpms_enum_list[] = | |
90 | { { DRM_MODE_DPMS_ON, "On" }, | |
91 | { DRM_MODE_DPMS_STANDBY, "Standby" }, | |
92 | { DRM_MODE_DPMS_SUSPEND, "Suspend" }, | |
93 | { DRM_MODE_DPMS_OFF, "Off" } | |
94 | }; | |
95 | ||
96 | DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list) | |
97 | ||
98 | /* | |
99 | * Optional properties | |
100 | */ | |
101 | static struct drm_prop_enum_list drm_scaling_mode_enum_list[] = | |
102 | { | |
53bd8389 JB |
103 | { DRM_MODE_SCALE_NONE, "None" }, |
104 | { DRM_MODE_SCALE_FULLSCREEN, "Full" }, | |
105 | { DRM_MODE_SCALE_CENTER, "Center" }, | |
106 | { DRM_MODE_SCALE_ASPECT, "Full aspect" }, | |
f453ba04 DA |
107 | }; |
108 | ||
109 | static struct drm_prop_enum_list drm_dithering_mode_enum_list[] = | |
110 | { | |
111 | { DRM_MODE_DITHERING_OFF, "Off" }, | |
112 | { DRM_MODE_DITHERING_ON, "On" }, | |
92897b5c | 113 | { DRM_MODE_DITHERING_AUTO, "Automatic" }, |
f453ba04 DA |
114 | }; |
115 | ||
116 | /* | |
117 | * Non-global properties, but "required" for certain connectors. | |
118 | */ | |
119 | static struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = | |
120 | { | |
121 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ | |
122 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
123 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
124 | }; | |
125 | ||
126 | DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list) | |
127 | ||
128 | static struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = | |
129 | { | |
130 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ | |
131 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
132 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
133 | }; | |
134 | ||
135 | DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name, | |
136 | drm_dvi_i_subconnector_enum_list) | |
137 | ||
138 | static struct drm_prop_enum_list drm_tv_select_enum_list[] = | |
139 | { | |
140 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ | |
141 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
142 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
143 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 144 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
145 | }; |
146 | ||
147 | DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list) | |
148 | ||
149 | static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = | |
150 | { | |
151 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ | |
152 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
153 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
154 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 155 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
156 | }; |
157 | ||
158 | DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, | |
159 | drm_tv_subconnector_enum_list) | |
160 | ||
884840aa JB |
161 | static struct drm_prop_enum_list drm_dirty_info_enum_list[] = { |
162 | { DRM_MODE_DIRTY_OFF, "Off" }, | |
163 | { DRM_MODE_DIRTY_ON, "On" }, | |
164 | { DRM_MODE_DIRTY_ANNOTATE, "Annotate" }, | |
165 | }; | |
166 | ||
167 | DRM_ENUM_NAME_FN(drm_get_dirty_info_name, | |
168 | drm_dirty_info_enum_list) | |
169 | ||
f453ba04 DA |
170 | struct drm_conn_prop_enum_list { |
171 | int type; | |
172 | char *name; | |
173 | int count; | |
174 | }; | |
175 | ||
176 | /* | |
177 | * Connector and encoder types. | |
178 | */ | |
179 | static struct drm_conn_prop_enum_list drm_connector_enum_list[] = | |
180 | { { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 }, | |
181 | { DRM_MODE_CONNECTOR_VGA, "VGA", 0 }, | |
182 | { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 }, | |
183 | { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 }, | |
184 | { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 }, | |
185 | { DRM_MODE_CONNECTOR_Composite, "Composite", 0 }, | |
186 | { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 }, | |
187 | { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 }, | |
188 | { DRM_MODE_CONNECTOR_Component, "Component", 0 }, | |
e76116ca AD |
189 | { DRM_MODE_CONNECTOR_9PinDIN, "DIN", 0 }, |
190 | { DRM_MODE_CONNECTOR_DisplayPort, "DP", 0 }, | |
191 | { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A", 0 }, | |
192 | { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B", 0 }, | |
74bd3c26 | 193 | { DRM_MODE_CONNECTOR_TV, "TV", 0 }, |
e76116ca | 194 | { DRM_MODE_CONNECTOR_eDP, "eDP", 0 }, |
a7331e5c | 195 | { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual", 0}, |
f453ba04 DA |
196 | }; |
197 | ||
198 | static struct drm_prop_enum_list drm_encoder_enum_list[] = | |
199 | { { DRM_MODE_ENCODER_NONE, "None" }, | |
200 | { DRM_MODE_ENCODER_DAC, "DAC" }, | |
201 | { DRM_MODE_ENCODER_TMDS, "TMDS" }, | |
202 | { DRM_MODE_ENCODER_LVDS, "LVDS" }, | |
203 | { DRM_MODE_ENCODER_TVDAC, "TV" }, | |
a7331e5c | 204 | { DRM_MODE_ENCODER_VIRTUAL, "Virtual" }, |
f453ba04 DA |
205 | }; |
206 | ||
207 | char *drm_get_encoder_name(struct drm_encoder *encoder) | |
208 | { | |
209 | static char buf[32]; | |
210 | ||
211 | snprintf(buf, 32, "%s-%d", | |
212 | drm_encoder_enum_list[encoder->encoder_type].name, | |
213 | encoder->base.id); | |
214 | return buf; | |
215 | } | |
13a8195b | 216 | EXPORT_SYMBOL(drm_get_encoder_name); |
f453ba04 DA |
217 | |
218 | char *drm_get_connector_name(struct drm_connector *connector) | |
219 | { | |
220 | static char buf[32]; | |
221 | ||
222 | snprintf(buf, 32, "%s-%d", | |
223 | drm_connector_enum_list[connector->connector_type].name, | |
224 | connector->connector_type_id); | |
225 | return buf; | |
226 | } | |
227 | EXPORT_SYMBOL(drm_get_connector_name); | |
228 | ||
229 | char *drm_get_connector_status_name(enum drm_connector_status status) | |
230 | { | |
231 | if (status == connector_status_connected) | |
232 | return "connected"; | |
233 | else if (status == connector_status_disconnected) | |
234 | return "disconnected"; | |
235 | else | |
236 | return "unknown"; | |
237 | } | |
238 | ||
239 | /** | |
065a50ed | 240 | * drm_mode_object_get - allocate a new modeset identifier |
f453ba04 | 241 | * @dev: DRM device |
065a50ed DV |
242 | * @obj: object pointer, used to generate unique ID |
243 | * @obj_type: object type | |
f453ba04 | 244 | * |
f453ba04 DA |
245 | * Create a unique identifier based on @ptr in @dev's identifier space. Used |
246 | * for tracking modes, CRTCs and connectors. | |
247 | * | |
248 | * RETURNS: | |
249 | * New unique (relative to other objects in @dev) integer identifier for the | |
250 | * object. | |
251 | */ | |
252 | static int drm_mode_object_get(struct drm_device *dev, | |
253 | struct drm_mode_object *obj, uint32_t obj_type) | |
254 | { | |
255 | int new_id = 0; | |
256 | int ret; | |
257 | ||
f453ba04 DA |
258 | again: |
259 | if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) { | |
260 | DRM_ERROR("Ran out memory getting a mode number\n"); | |
f1ae126c | 261 | return -ENOMEM; |
f453ba04 DA |
262 | } |
263 | ||
ad2563c2 | 264 | mutex_lock(&dev->mode_config.idr_mutex); |
f453ba04 | 265 | ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id); |
4b096ac1 DV |
266 | |
267 | if (!ret) { | |
268 | /* | |
269 | * Set up the object linking under the protection of the idr | |
270 | * lock so that other users can't see inconsistent state. | |
271 | */ | |
272 | obj->id = new_id; | |
273 | obj->type = obj_type; | |
274 | } | |
ad2563c2 | 275 | mutex_unlock(&dev->mode_config.idr_mutex); |
4b096ac1 | 276 | |
f453ba04 DA |
277 | if (ret == -EAGAIN) |
278 | goto again; | |
279 | ||
4b096ac1 | 280 | return ret; |
f453ba04 DA |
281 | } |
282 | ||
283 | /** | |
065a50ed | 284 | * drm_mode_object_put - free a modeset identifer |
f453ba04 | 285 | * @dev: DRM device |
065a50ed | 286 | * @object: object to free |
f453ba04 | 287 | * |
f453ba04 DA |
288 | * Free @id from @dev's unique identifier pool. |
289 | */ | |
290 | static void drm_mode_object_put(struct drm_device *dev, | |
291 | struct drm_mode_object *object) | |
292 | { | |
ad2563c2 | 293 | mutex_lock(&dev->mode_config.idr_mutex); |
f453ba04 | 294 | idr_remove(&dev->mode_config.crtc_idr, object->id); |
ad2563c2 | 295 | mutex_unlock(&dev->mode_config.idr_mutex); |
f453ba04 DA |
296 | } |
297 | ||
786b99ed DV |
298 | /** |
299 | * drm_mode_object_find - look up a drm object with static lifetime | |
300 | * @dev: drm device | |
301 | * @id: id of the mode object | |
302 | * @type: type of the mode object | |
303 | * | |
304 | * Note that framebuffers cannot be looked up with this functions - since those | |
305 | * are reference counted, they need special treatment. | |
306 | */ | |
7a9c9060 DV |
307 | struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, |
308 | uint32_t id, uint32_t type) | |
f453ba04 | 309 | { |
ad2563c2 | 310 | struct drm_mode_object *obj = NULL; |
f453ba04 | 311 | |
786b99ed DV |
312 | /* Framebuffers are reference counted and need their own lookup |
313 | * function.*/ | |
314 | WARN_ON(type == DRM_MODE_OBJECT_FB); | |
315 | ||
ad2563c2 | 316 | mutex_lock(&dev->mode_config.idr_mutex); |
f453ba04 DA |
317 | obj = idr_find(&dev->mode_config.crtc_idr, id); |
318 | if (!obj || (obj->type != type) || (obj->id != id)) | |
ad2563c2 JB |
319 | obj = NULL; |
320 | mutex_unlock(&dev->mode_config.idr_mutex); | |
f453ba04 DA |
321 | |
322 | return obj; | |
323 | } | |
324 | EXPORT_SYMBOL(drm_mode_object_find); | |
325 | ||
f453ba04 DA |
326 | /** |
327 | * drm_framebuffer_init - initialize a framebuffer | |
328 | * @dev: DRM device | |
065a50ed DV |
329 | * @fb: framebuffer to be initialized |
330 | * @funcs: ... with these functions | |
f453ba04 | 331 | * |
f453ba04 DA |
332 | * Allocates an ID for the framebuffer's parent mode object, sets its mode |
333 | * functions & device file and adds it to the master fd list. | |
334 | * | |
4b096ac1 DV |
335 | * IMPORTANT: |
336 | * This functions publishes the fb and makes it available for concurrent access | |
337 | * by other users. Which means by this point the fb _must_ be fully set up - | |
338 | * since all the fb attributes are invariant over its lifetime, no further | |
339 | * locking but only correct reference counting is required. | |
340 | * | |
f453ba04 | 341 | * RETURNS: |
af901ca1 | 342 | * Zero on success, error code on failure. |
f453ba04 DA |
343 | */ |
344 | int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, | |
345 | const struct drm_framebuffer_funcs *funcs) | |
346 | { | |
347 | int ret; | |
348 | ||
4b096ac1 | 349 | mutex_lock(&dev->mode_config.fb_lock); |
f7eff60e | 350 | kref_init(&fb->refcount); |
4b096ac1 DV |
351 | INIT_LIST_HEAD(&fb->filp_head); |
352 | fb->dev = dev; | |
353 | fb->funcs = funcs; | |
f7eff60e | 354 | |
f453ba04 | 355 | ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB); |
6bfc56aa | 356 | if (ret) |
4b096ac1 | 357 | goto out; |
f453ba04 | 358 | |
2b677e8c DV |
359 | /* Grab the idr reference. */ |
360 | drm_framebuffer_reference(fb); | |
361 | ||
f453ba04 DA |
362 | dev->mode_config.num_fb++; |
363 | list_add(&fb->head, &dev->mode_config.fb_list); | |
4b096ac1 DV |
364 | out: |
365 | mutex_unlock(&dev->mode_config.fb_lock); | |
f453ba04 DA |
366 | |
367 | return 0; | |
368 | } | |
369 | EXPORT_SYMBOL(drm_framebuffer_init); | |
370 | ||
f7eff60e RC |
371 | static void drm_framebuffer_free(struct kref *kref) |
372 | { | |
373 | struct drm_framebuffer *fb = | |
374 | container_of(kref, struct drm_framebuffer, refcount); | |
375 | fb->funcs->destroy(fb); | |
376 | } | |
377 | ||
2b677e8c DV |
378 | static struct drm_framebuffer *__drm_framebuffer_lookup(struct drm_device *dev, |
379 | uint32_t id) | |
380 | { | |
381 | struct drm_mode_object *obj = NULL; | |
382 | struct drm_framebuffer *fb; | |
383 | ||
384 | mutex_lock(&dev->mode_config.idr_mutex); | |
385 | obj = idr_find(&dev->mode_config.crtc_idr, id); | |
386 | if (!obj || (obj->type != DRM_MODE_OBJECT_FB) || (obj->id != id)) | |
387 | fb = NULL; | |
388 | else | |
389 | fb = obj_to_fb(obj); | |
390 | mutex_unlock(&dev->mode_config.idr_mutex); | |
391 | ||
392 | return fb; | |
393 | } | |
394 | ||
786b99ed DV |
395 | /** |
396 | * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference | |
397 | * @dev: drm device | |
398 | * @id: id of the fb object | |
399 | * | |
400 | * If successful, this grabs an additional reference to the framebuffer - | |
401 | * callers need to make sure to eventually unreference the returned framebuffer | |
402 | * again. | |
403 | */ | |
404 | struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev, | |
405 | uint32_t id) | |
406 | { | |
786b99ed DV |
407 | struct drm_framebuffer *fb; |
408 | ||
409 | mutex_lock(&dev->mode_config.fb_lock); | |
2b677e8c | 410 | fb = __drm_framebuffer_lookup(dev, id); |
786b99ed DV |
411 | if (fb) |
412 | kref_get(&fb->refcount); | |
786b99ed DV |
413 | mutex_unlock(&dev->mode_config.fb_lock); |
414 | ||
415 | return fb; | |
416 | } | |
417 | EXPORT_SYMBOL(drm_framebuffer_lookup); | |
418 | ||
f7eff60e RC |
419 | /** |
420 | * drm_framebuffer_unreference - unref a framebuffer | |
065a50ed DV |
421 | * @fb: framebuffer to unref |
422 | * | |
423 | * This functions decrements the fb's refcount and frees it if it drops to zero. | |
f7eff60e RC |
424 | */ |
425 | void drm_framebuffer_unreference(struct drm_framebuffer *fb) | |
426 | { | |
f7eff60e | 427 | DRM_DEBUG("FB ID: %d\n", fb->base.id); |
f7eff60e RC |
428 | kref_put(&fb->refcount, drm_framebuffer_free); |
429 | } | |
430 | EXPORT_SYMBOL(drm_framebuffer_unreference); | |
431 | ||
432 | /** | |
433 | * drm_framebuffer_reference - incr the fb refcnt | |
065a50ed | 434 | * @fb: framebuffer |
f7eff60e RC |
435 | */ |
436 | void drm_framebuffer_reference(struct drm_framebuffer *fb) | |
437 | { | |
438 | DRM_DEBUG("FB ID: %d\n", fb->base.id); | |
439 | kref_get(&fb->refcount); | |
440 | } | |
441 | EXPORT_SYMBOL(drm_framebuffer_reference); | |
442 | ||
2b677e8c DV |
443 | static void drm_framebuffer_free_bug(struct kref *kref) |
444 | { | |
445 | BUG(); | |
446 | } | |
447 | ||
6c2a7532 DV |
448 | static void __drm_framebuffer_unreference(struct drm_framebuffer *fb) |
449 | { | |
450 | DRM_DEBUG("FB ID: %d\n", fb->base.id); | |
451 | kref_put(&fb->refcount, drm_framebuffer_free_bug); | |
452 | } | |
453 | ||
2b677e8c DV |
454 | /* dev->mode_config.fb_lock must be held! */ |
455 | static void __drm_framebuffer_unregister(struct drm_device *dev, | |
456 | struct drm_framebuffer *fb) | |
457 | { | |
458 | mutex_lock(&dev->mode_config.idr_mutex); | |
459 | idr_remove(&dev->mode_config.crtc_idr, fb->base.id); | |
460 | mutex_unlock(&dev->mode_config.idr_mutex); | |
461 | ||
462 | fb->base.id = 0; | |
463 | ||
6c2a7532 | 464 | __drm_framebuffer_unreference(fb); |
2b677e8c DV |
465 | } |
466 | ||
36206361 DV |
467 | /** |
468 | * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr | |
469 | * @fb: fb to unregister | |
470 | * | |
471 | * Drivers need to call this when cleaning up driver-private framebuffers, e.g. | |
472 | * those used for fbdev. Note that the caller must hold a reference of it's own, | |
473 | * i.e. the object may not be destroyed through this call (since it'll lead to a | |
474 | * locking inversion). | |
475 | */ | |
476 | void drm_framebuffer_unregister_private(struct drm_framebuffer *fb) | |
477 | { | |
2b677e8c DV |
478 | struct drm_device *dev = fb->dev; |
479 | ||
480 | mutex_lock(&dev->mode_config.fb_lock); | |
481 | /* Mark fb as reaped and drop idr ref. */ | |
482 | __drm_framebuffer_unregister(dev, fb); | |
483 | mutex_unlock(&dev->mode_config.fb_lock); | |
36206361 DV |
484 | } |
485 | EXPORT_SYMBOL(drm_framebuffer_unregister_private); | |
486 | ||
f453ba04 DA |
487 | /** |
488 | * drm_framebuffer_cleanup - remove a framebuffer object | |
489 | * @fb: framebuffer to remove | |
490 | * | |
36206361 DV |
491 | * Cleanup references to a user-created framebuffer. This function is intended |
492 | * to be used from the drivers ->destroy callback. | |
493 | * | |
494 | * Note that this function does not remove the fb from active usuage - if it is | |
495 | * still used anywhere, hilarity can ensue since userspace could call getfb on | |
496 | * the id and get back -EINVAL. Obviously no concern at driver unload time. | |
497 | * | |
498 | * Also, the framebuffer will not be removed from the lookup idr - for | |
499 | * user-created framebuffers this will happen in in the rmfb ioctl. For | |
500 | * driver-private objects (e.g. for fbdev) drivers need to explicitly call | |
501 | * drm_framebuffer_unregister_private. | |
f453ba04 DA |
502 | */ |
503 | void drm_framebuffer_cleanup(struct drm_framebuffer *fb) | |
f7eff60e RC |
504 | { |
505 | struct drm_device *dev = fb->dev; | |
8faf6b18 | 506 | |
4b096ac1 | 507 | mutex_lock(&dev->mode_config.fb_lock); |
f7eff60e RC |
508 | list_del(&fb->head); |
509 | dev->mode_config.num_fb--; | |
4b096ac1 | 510 | mutex_unlock(&dev->mode_config.fb_lock); |
f7eff60e RC |
511 | } |
512 | EXPORT_SYMBOL(drm_framebuffer_cleanup); | |
513 | ||
514 | /** | |
515 | * drm_framebuffer_remove - remove and unreference a framebuffer object | |
516 | * @fb: framebuffer to remove | |
517 | * | |
f7eff60e | 518 | * Scans all the CRTCs and planes in @dev's mode_config. If they're |
36206361 DV |
519 | * using @fb, removes it, setting it to NULL. Then drops the reference to the |
520 | * passed-in framebuffer. | |
f7eff60e RC |
521 | */ |
522 | void drm_framebuffer_remove(struct drm_framebuffer *fb) | |
f453ba04 DA |
523 | { |
524 | struct drm_device *dev = fb->dev; | |
525 | struct drm_crtc *crtc; | |
8cf5c917 | 526 | struct drm_plane *plane; |
5ef5f72f DA |
527 | struct drm_mode_set set; |
528 | int ret; | |
f453ba04 | 529 | |
8faf6b18 | 530 | WARN_ON(!drm_modeset_is_locked(dev)); |
4b096ac1 | 531 | WARN_ON(!list_empty(&fb->filp_head)); |
8faf6b18 | 532 | |
f453ba04 DA |
533 | /* remove from any CRTC */ |
534 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
5ef5f72f DA |
535 | if (crtc->fb == fb) { |
536 | /* should turn off the crtc */ | |
537 | memset(&set, 0, sizeof(struct drm_mode_set)); | |
538 | set.crtc = crtc; | |
539 | set.fb = NULL; | |
2d13b679 | 540 | ret = drm_mode_set_config_internal(&set); |
5ef5f72f DA |
541 | if (ret) |
542 | DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc); | |
543 | } | |
f453ba04 DA |
544 | } |
545 | ||
8cf5c917 JB |
546 | list_for_each_entry(plane, &dev->mode_config.plane_list, head) { |
547 | if (plane->fb == fb) { | |
548 | /* should turn off the crtc */ | |
549 | ret = plane->funcs->disable_plane(plane); | |
550 | if (ret) | |
551 | DRM_ERROR("failed to disable plane with busy fb\n"); | |
a9971157 | 552 | /* disconnect the plane from the fb and crtc: */ |
6c2a7532 | 553 | __drm_framebuffer_unreference(plane->fb); |
a9971157 RC |
554 | plane->fb = NULL; |
555 | plane->crtc = NULL; | |
8cf5c917 JB |
556 | } |
557 | } | |
558 | ||
f7eff60e | 559 | drm_framebuffer_unreference(fb); |
f453ba04 | 560 | } |
f7eff60e | 561 | EXPORT_SYMBOL(drm_framebuffer_remove); |
f453ba04 DA |
562 | |
563 | /** | |
564 | * drm_crtc_init - Initialise a new CRTC object | |
565 | * @dev: DRM device | |
566 | * @crtc: CRTC object to init | |
567 | * @funcs: callbacks for the new CRTC | |
568 | * | |
f453ba04 | 569 | * Inits a new object created as base part of an driver crtc object. |
6bfc56aa VS |
570 | * |
571 | * RETURNS: | |
572 | * Zero on success, error code on failure. | |
f453ba04 | 573 | */ |
6bfc56aa | 574 | int drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc, |
f453ba04 DA |
575 | const struct drm_crtc_funcs *funcs) |
576 | { | |
6bfc56aa VS |
577 | int ret; |
578 | ||
f453ba04 DA |
579 | crtc->dev = dev; |
580 | crtc->funcs = funcs; | |
7c80e128 | 581 | crtc->invert_dimensions = false; |
f453ba04 | 582 | |
84849903 | 583 | drm_modeset_lock_all(dev); |
29494c17 DV |
584 | mutex_init(&crtc->mutex); |
585 | mutex_lock_nest_lock(&crtc->mutex, &dev->mode_config.mutex); | |
6bfc56aa VS |
586 | |
587 | ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); | |
588 | if (ret) | |
589 | goto out; | |
f453ba04 | 590 | |
bffd9de0 PZ |
591 | crtc->base.properties = &crtc->properties; |
592 | ||
f453ba04 DA |
593 | list_add_tail(&crtc->head, &dev->mode_config.crtc_list); |
594 | dev->mode_config.num_crtc++; | |
6bfc56aa VS |
595 | |
596 | out: | |
84849903 | 597 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
598 | |
599 | return ret; | |
f453ba04 DA |
600 | } |
601 | EXPORT_SYMBOL(drm_crtc_init); | |
602 | ||
603 | /** | |
604 | * drm_crtc_cleanup - Cleans up the core crtc usage. | |
605 | * @crtc: CRTC to cleanup | |
606 | * | |
f453ba04 DA |
607 | * Cleanup @crtc. Removes from drm modesetting space |
608 | * does NOT free object, caller does that. | |
609 | */ | |
610 | void drm_crtc_cleanup(struct drm_crtc *crtc) | |
611 | { | |
612 | struct drm_device *dev = crtc->dev; | |
613 | ||
9e1c156f SK |
614 | kfree(crtc->gamma_store); |
615 | crtc->gamma_store = NULL; | |
f453ba04 DA |
616 | |
617 | drm_mode_object_put(dev, &crtc->base); | |
618 | list_del(&crtc->head); | |
619 | dev->mode_config.num_crtc--; | |
620 | } | |
621 | EXPORT_SYMBOL(drm_crtc_cleanup); | |
622 | ||
623 | /** | |
624 | * drm_mode_probed_add - add a mode to a connector's probed mode list | |
625 | * @connector: connector the new mode | |
626 | * @mode: mode data | |
627 | * | |
f453ba04 DA |
628 | * Add @mode to @connector's mode list for later use. |
629 | */ | |
630 | void drm_mode_probed_add(struct drm_connector *connector, | |
631 | struct drm_display_mode *mode) | |
632 | { | |
633 | list_add(&mode->head, &connector->probed_modes); | |
634 | } | |
635 | EXPORT_SYMBOL(drm_mode_probed_add); | |
636 | ||
637 | /** | |
638 | * drm_mode_remove - remove and free a mode | |
639 | * @connector: connector list to modify | |
640 | * @mode: mode to remove | |
641 | * | |
f453ba04 DA |
642 | * Remove @mode from @connector's mode list, then free it. |
643 | */ | |
644 | void drm_mode_remove(struct drm_connector *connector, | |
645 | struct drm_display_mode *mode) | |
646 | { | |
647 | list_del(&mode->head); | |
554f1d78 | 648 | drm_mode_destroy(connector->dev, mode); |
f453ba04 DA |
649 | } |
650 | EXPORT_SYMBOL(drm_mode_remove); | |
651 | ||
652 | /** | |
653 | * drm_connector_init - Init a preallocated connector | |
654 | * @dev: DRM device | |
655 | * @connector: the connector to init | |
656 | * @funcs: callbacks for this connector | |
065a50ed | 657 | * @connector_type: user visible type of the connector |
f453ba04 | 658 | * |
f453ba04 DA |
659 | * Initialises a preallocated connector. Connectors should be |
660 | * subclassed as part of driver connector objects. | |
6bfc56aa VS |
661 | * |
662 | * RETURNS: | |
663 | * Zero on success, error code on failure. | |
f453ba04 | 664 | */ |
6bfc56aa VS |
665 | int drm_connector_init(struct drm_device *dev, |
666 | struct drm_connector *connector, | |
667 | const struct drm_connector_funcs *funcs, | |
668 | int connector_type) | |
f453ba04 | 669 | { |
6bfc56aa VS |
670 | int ret; |
671 | ||
84849903 | 672 | drm_modeset_lock_all(dev); |
f453ba04 | 673 | |
6bfc56aa VS |
674 | ret = drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR); |
675 | if (ret) | |
676 | goto out; | |
677 | ||
7e3bdf4a | 678 | connector->base.properties = &connector->properties; |
f453ba04 DA |
679 | connector->dev = dev; |
680 | connector->funcs = funcs; | |
f453ba04 DA |
681 | connector->connector_type = connector_type; |
682 | connector->connector_type_id = | |
683 | ++drm_connector_enum_list[connector_type].count; /* TODO */ | |
684 | INIT_LIST_HEAD(&connector->user_modes); | |
685 | INIT_LIST_HEAD(&connector->probed_modes); | |
686 | INIT_LIST_HEAD(&connector->modes); | |
687 | connector->edid_blob_ptr = NULL; | |
5e2cb2f6 | 688 | connector->status = connector_status_unknown; |
f453ba04 DA |
689 | |
690 | list_add_tail(&connector->head, &dev->mode_config.connector_list); | |
691 | dev->mode_config.num_connector++; | |
692 | ||
a7331e5c | 693 | if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL) |
58495563 | 694 | drm_object_attach_property(&connector->base, |
a7331e5c TH |
695 | dev->mode_config.edid_property, |
696 | 0); | |
f453ba04 | 697 | |
58495563 | 698 | drm_object_attach_property(&connector->base, |
f453ba04 DA |
699 | dev->mode_config.dpms_property, 0); |
700 | ||
6bfc56aa | 701 | out: |
84849903 | 702 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
703 | |
704 | return ret; | |
f453ba04 DA |
705 | } |
706 | EXPORT_SYMBOL(drm_connector_init); | |
707 | ||
708 | /** | |
709 | * drm_connector_cleanup - cleans up an initialised connector | |
710 | * @connector: connector to cleanup | |
711 | * | |
f453ba04 DA |
712 | * Cleans up the connector but doesn't free the object. |
713 | */ | |
714 | void drm_connector_cleanup(struct drm_connector *connector) | |
715 | { | |
716 | struct drm_device *dev = connector->dev; | |
717 | struct drm_display_mode *mode, *t; | |
718 | ||
719 | list_for_each_entry_safe(mode, t, &connector->probed_modes, head) | |
720 | drm_mode_remove(connector, mode); | |
721 | ||
722 | list_for_each_entry_safe(mode, t, &connector->modes, head) | |
723 | drm_mode_remove(connector, mode); | |
724 | ||
725 | list_for_each_entry_safe(mode, t, &connector->user_modes, head) | |
726 | drm_mode_remove(connector, mode); | |
727 | ||
f453ba04 DA |
728 | drm_mode_object_put(dev, &connector->base); |
729 | list_del(&connector->head); | |
6380c509 | 730 | dev->mode_config.num_connector--; |
f453ba04 DA |
731 | } |
732 | EXPORT_SYMBOL(drm_connector_cleanup); | |
733 | ||
cbc7e221 DA |
734 | void drm_connector_unplug_all(struct drm_device *dev) |
735 | { | |
736 | struct drm_connector *connector; | |
737 | ||
738 | /* taking the mode config mutex ends up in a clash with sysfs */ | |
739 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) | |
740 | drm_sysfs_connector_remove(connector); | |
741 | ||
742 | } | |
743 | EXPORT_SYMBOL(drm_connector_unplug_all); | |
744 | ||
6bfc56aa | 745 | int drm_encoder_init(struct drm_device *dev, |
cbc7e221 DA |
746 | struct drm_encoder *encoder, |
747 | const struct drm_encoder_funcs *funcs, | |
748 | int encoder_type) | |
f453ba04 | 749 | { |
6bfc56aa VS |
750 | int ret; |
751 | ||
84849903 | 752 | drm_modeset_lock_all(dev); |
f453ba04 | 753 | |
6bfc56aa VS |
754 | ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); |
755 | if (ret) | |
756 | goto out; | |
f453ba04 | 757 | |
6bfc56aa | 758 | encoder->dev = dev; |
f453ba04 DA |
759 | encoder->encoder_type = encoder_type; |
760 | encoder->funcs = funcs; | |
761 | ||
762 | list_add_tail(&encoder->head, &dev->mode_config.encoder_list); | |
763 | dev->mode_config.num_encoder++; | |
764 | ||
6bfc56aa | 765 | out: |
84849903 | 766 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
767 | |
768 | return ret; | |
f453ba04 DA |
769 | } |
770 | EXPORT_SYMBOL(drm_encoder_init); | |
771 | ||
772 | void drm_encoder_cleanup(struct drm_encoder *encoder) | |
773 | { | |
774 | struct drm_device *dev = encoder->dev; | |
84849903 | 775 | drm_modeset_lock_all(dev); |
f453ba04 DA |
776 | drm_mode_object_put(dev, &encoder->base); |
777 | list_del(&encoder->head); | |
6380c509 | 778 | dev->mode_config.num_encoder--; |
84849903 | 779 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
780 | } |
781 | EXPORT_SYMBOL(drm_encoder_cleanup); | |
782 | ||
8cf5c917 JB |
783 | int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, |
784 | unsigned long possible_crtcs, | |
785 | const struct drm_plane_funcs *funcs, | |
0a7eb243 RC |
786 | const uint32_t *formats, uint32_t format_count, |
787 | bool priv) | |
8cf5c917 | 788 | { |
6bfc56aa VS |
789 | int ret; |
790 | ||
84849903 | 791 | drm_modeset_lock_all(dev); |
8cf5c917 | 792 | |
6bfc56aa VS |
793 | ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); |
794 | if (ret) | |
795 | goto out; | |
796 | ||
4d93914a | 797 | plane->base.properties = &plane->properties; |
8cf5c917 | 798 | plane->dev = dev; |
8cf5c917 JB |
799 | plane->funcs = funcs; |
800 | plane->format_types = kmalloc(sizeof(uint32_t) * format_count, | |
801 | GFP_KERNEL); | |
802 | if (!plane->format_types) { | |
803 | DRM_DEBUG_KMS("out of memory when allocating plane\n"); | |
804 | drm_mode_object_put(dev, &plane->base); | |
6bfc56aa VS |
805 | ret = -ENOMEM; |
806 | goto out; | |
8cf5c917 JB |
807 | } |
808 | ||
308e5bcb | 809 | memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); |
8cf5c917 JB |
810 | plane->format_count = format_count; |
811 | plane->possible_crtcs = possible_crtcs; | |
812 | ||
0a7eb243 RC |
813 | /* private planes are not exposed to userspace, but depending on |
814 | * display hardware, might be convenient to allow sharing programming | |
815 | * for the scanout engine with the crtc implementation. | |
816 | */ | |
817 | if (!priv) { | |
818 | list_add_tail(&plane->head, &dev->mode_config.plane_list); | |
819 | dev->mode_config.num_plane++; | |
820 | } else { | |
821 | INIT_LIST_HEAD(&plane->head); | |
822 | } | |
8cf5c917 | 823 | |
6bfc56aa | 824 | out: |
84849903 | 825 | drm_modeset_unlock_all(dev); |
8cf5c917 | 826 | |
6bfc56aa | 827 | return ret; |
8cf5c917 JB |
828 | } |
829 | EXPORT_SYMBOL(drm_plane_init); | |
830 | ||
831 | void drm_plane_cleanup(struct drm_plane *plane) | |
832 | { | |
833 | struct drm_device *dev = plane->dev; | |
834 | ||
84849903 | 835 | drm_modeset_lock_all(dev); |
8cf5c917 JB |
836 | kfree(plane->format_types); |
837 | drm_mode_object_put(dev, &plane->base); | |
0a7eb243 RC |
838 | /* if not added to a list, it must be a private plane */ |
839 | if (!list_empty(&plane->head)) { | |
840 | list_del(&plane->head); | |
841 | dev->mode_config.num_plane--; | |
842 | } | |
84849903 | 843 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
844 | } |
845 | EXPORT_SYMBOL(drm_plane_cleanup); | |
846 | ||
f453ba04 DA |
847 | /** |
848 | * drm_mode_create - create a new display mode | |
849 | * @dev: DRM device | |
850 | * | |
f453ba04 DA |
851 | * Create a new drm_display_mode, give it an ID, and return it. |
852 | * | |
853 | * RETURNS: | |
854 | * Pointer to new mode on success, NULL on error. | |
855 | */ | |
856 | struct drm_display_mode *drm_mode_create(struct drm_device *dev) | |
857 | { | |
858 | struct drm_display_mode *nmode; | |
859 | ||
860 | nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL); | |
861 | if (!nmode) | |
862 | return NULL; | |
863 | ||
6bfc56aa VS |
864 | if (drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE)) { |
865 | kfree(nmode); | |
866 | return NULL; | |
867 | } | |
868 | ||
f453ba04 DA |
869 | return nmode; |
870 | } | |
871 | EXPORT_SYMBOL(drm_mode_create); | |
872 | ||
873 | /** | |
874 | * drm_mode_destroy - remove a mode | |
875 | * @dev: DRM device | |
876 | * @mode: mode to remove | |
877 | * | |
f453ba04 DA |
878 | * Free @mode's unique identifier, then free it. |
879 | */ | |
880 | void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode) | |
881 | { | |
ee34ab5b VS |
882 | if (!mode) |
883 | return; | |
884 | ||
f453ba04 DA |
885 | drm_mode_object_put(dev, &mode->base); |
886 | ||
887 | kfree(mode); | |
888 | } | |
889 | EXPORT_SYMBOL(drm_mode_destroy); | |
890 | ||
891 | static int drm_mode_create_standard_connector_properties(struct drm_device *dev) | |
892 | { | |
893 | struct drm_property *edid; | |
894 | struct drm_property *dpms; | |
f453ba04 DA |
895 | |
896 | /* | |
897 | * Standard properties (apply to all connectors) | |
898 | */ | |
899 | edid = drm_property_create(dev, DRM_MODE_PROP_BLOB | | |
900 | DRM_MODE_PROP_IMMUTABLE, | |
901 | "EDID", 0); | |
902 | dev->mode_config.edid_property = edid; | |
903 | ||
4a67d391 SH |
904 | dpms = drm_property_create_enum(dev, 0, |
905 | "DPMS", drm_dpms_enum_list, | |
906 | ARRAY_SIZE(drm_dpms_enum_list)); | |
f453ba04 DA |
907 | dev->mode_config.dpms_property = dpms; |
908 | ||
909 | return 0; | |
910 | } | |
911 | ||
912 | /** | |
913 | * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties | |
914 | * @dev: DRM device | |
915 | * | |
916 | * Called by a driver the first time a DVI-I connector is made. | |
917 | */ | |
918 | int drm_mode_create_dvi_i_properties(struct drm_device *dev) | |
919 | { | |
920 | struct drm_property *dvi_i_selector; | |
921 | struct drm_property *dvi_i_subconnector; | |
f453ba04 DA |
922 | |
923 | if (dev->mode_config.dvi_i_select_subconnector_property) | |
924 | return 0; | |
925 | ||
926 | dvi_i_selector = | |
4a67d391 | 927 | drm_property_create_enum(dev, 0, |
f453ba04 | 928 | "select subconnector", |
4a67d391 | 929 | drm_dvi_i_select_enum_list, |
f453ba04 | 930 | ARRAY_SIZE(drm_dvi_i_select_enum_list)); |
f453ba04 DA |
931 | dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; |
932 | ||
4a67d391 | 933 | dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
f453ba04 | 934 | "subconnector", |
4a67d391 | 935 | drm_dvi_i_subconnector_enum_list, |
f453ba04 | 936 | ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); |
f453ba04 DA |
937 | dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; |
938 | ||
939 | return 0; | |
940 | } | |
941 | EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); | |
942 | ||
943 | /** | |
944 | * drm_create_tv_properties - create TV specific connector properties | |
945 | * @dev: DRM device | |
946 | * @num_modes: number of different TV formats (modes) supported | |
947 | * @modes: array of pointers to strings containing name of each format | |
948 | * | |
949 | * Called by a driver's TV initialization routine, this function creates | |
950 | * the TV specific connector properties for a given device. Caller is | |
951 | * responsible for allocating a list of format names and passing them to | |
952 | * this routine. | |
953 | */ | |
954 | int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes, | |
955 | char *modes[]) | |
956 | { | |
957 | struct drm_property *tv_selector; | |
958 | struct drm_property *tv_subconnector; | |
959 | int i; | |
960 | ||
961 | if (dev->mode_config.tv_select_subconnector_property) | |
962 | return 0; | |
963 | ||
964 | /* | |
965 | * Basic connector properties | |
966 | */ | |
4a67d391 | 967 | tv_selector = drm_property_create_enum(dev, 0, |
f453ba04 | 968 | "select subconnector", |
4a67d391 | 969 | drm_tv_select_enum_list, |
f453ba04 | 970 | ARRAY_SIZE(drm_tv_select_enum_list)); |
f453ba04 DA |
971 | dev->mode_config.tv_select_subconnector_property = tv_selector; |
972 | ||
973 | tv_subconnector = | |
4a67d391 SH |
974 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
975 | "subconnector", | |
976 | drm_tv_subconnector_enum_list, | |
f453ba04 | 977 | ARRAY_SIZE(drm_tv_subconnector_enum_list)); |
f453ba04 DA |
978 | dev->mode_config.tv_subconnector_property = tv_subconnector; |
979 | ||
980 | /* | |
981 | * Other, TV specific properties: margins & TV modes. | |
982 | */ | |
983 | dev->mode_config.tv_left_margin_property = | |
d9bc3c02 | 984 | drm_property_create_range(dev, 0, "left margin", 0, 100); |
f453ba04 DA |
985 | |
986 | dev->mode_config.tv_right_margin_property = | |
d9bc3c02 | 987 | drm_property_create_range(dev, 0, "right margin", 0, 100); |
f453ba04 DA |
988 | |
989 | dev->mode_config.tv_top_margin_property = | |
d9bc3c02 | 990 | drm_property_create_range(dev, 0, "top margin", 0, 100); |
f453ba04 DA |
991 | |
992 | dev->mode_config.tv_bottom_margin_property = | |
d9bc3c02 | 993 | drm_property_create_range(dev, 0, "bottom margin", 0, 100); |
f453ba04 DA |
994 | |
995 | dev->mode_config.tv_mode_property = | |
996 | drm_property_create(dev, DRM_MODE_PROP_ENUM, | |
997 | "mode", num_modes); | |
998 | for (i = 0; i < num_modes; i++) | |
999 | drm_property_add_enum(dev->mode_config.tv_mode_property, i, | |
1000 | i, modes[i]); | |
1001 | ||
b6b7902e | 1002 | dev->mode_config.tv_brightness_property = |
d9bc3c02 | 1003 | drm_property_create_range(dev, 0, "brightness", 0, 100); |
b6b7902e FJ |
1004 | |
1005 | dev->mode_config.tv_contrast_property = | |
d9bc3c02 | 1006 | drm_property_create_range(dev, 0, "contrast", 0, 100); |
b6b7902e FJ |
1007 | |
1008 | dev->mode_config.tv_flicker_reduction_property = | |
d9bc3c02 | 1009 | drm_property_create_range(dev, 0, "flicker reduction", 0, 100); |
b6b7902e | 1010 | |
a75f0236 | 1011 | dev->mode_config.tv_overscan_property = |
d9bc3c02 | 1012 | drm_property_create_range(dev, 0, "overscan", 0, 100); |
a75f0236 FJ |
1013 | |
1014 | dev->mode_config.tv_saturation_property = | |
d9bc3c02 | 1015 | drm_property_create_range(dev, 0, "saturation", 0, 100); |
a75f0236 FJ |
1016 | |
1017 | dev->mode_config.tv_hue_property = | |
d9bc3c02 | 1018 | drm_property_create_range(dev, 0, "hue", 0, 100); |
a75f0236 | 1019 | |
f453ba04 DA |
1020 | return 0; |
1021 | } | |
1022 | EXPORT_SYMBOL(drm_mode_create_tv_properties); | |
1023 | ||
1024 | /** | |
1025 | * drm_mode_create_scaling_mode_property - create scaling mode property | |
1026 | * @dev: DRM device | |
1027 | * | |
1028 | * Called by a driver the first time it's needed, must be attached to desired | |
1029 | * connectors. | |
1030 | */ | |
1031 | int drm_mode_create_scaling_mode_property(struct drm_device *dev) | |
1032 | { | |
1033 | struct drm_property *scaling_mode; | |
f453ba04 DA |
1034 | |
1035 | if (dev->mode_config.scaling_mode_property) | |
1036 | return 0; | |
1037 | ||
1038 | scaling_mode = | |
4a67d391 SH |
1039 | drm_property_create_enum(dev, 0, "scaling mode", |
1040 | drm_scaling_mode_enum_list, | |
f453ba04 | 1041 | ARRAY_SIZE(drm_scaling_mode_enum_list)); |
f453ba04 DA |
1042 | |
1043 | dev->mode_config.scaling_mode_property = scaling_mode; | |
1044 | ||
1045 | return 0; | |
1046 | } | |
1047 | EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); | |
1048 | ||
1049 | /** | |
1050 | * drm_mode_create_dithering_property - create dithering property | |
1051 | * @dev: DRM device | |
1052 | * | |
1053 | * Called by a driver the first time it's needed, must be attached to desired | |
1054 | * connectors. | |
1055 | */ | |
1056 | int drm_mode_create_dithering_property(struct drm_device *dev) | |
1057 | { | |
1058 | struct drm_property *dithering_mode; | |
f453ba04 DA |
1059 | |
1060 | if (dev->mode_config.dithering_mode_property) | |
1061 | return 0; | |
1062 | ||
1063 | dithering_mode = | |
4a67d391 SH |
1064 | drm_property_create_enum(dev, 0, "dithering", |
1065 | drm_dithering_mode_enum_list, | |
f453ba04 | 1066 | ARRAY_SIZE(drm_dithering_mode_enum_list)); |
f453ba04 DA |
1067 | dev->mode_config.dithering_mode_property = dithering_mode; |
1068 | ||
1069 | return 0; | |
1070 | } | |
1071 | EXPORT_SYMBOL(drm_mode_create_dithering_property); | |
1072 | ||
884840aa JB |
1073 | /** |
1074 | * drm_mode_create_dirty_property - create dirty property | |
1075 | * @dev: DRM device | |
1076 | * | |
1077 | * Called by a driver the first time it's needed, must be attached to desired | |
1078 | * connectors. | |
1079 | */ | |
1080 | int drm_mode_create_dirty_info_property(struct drm_device *dev) | |
1081 | { | |
1082 | struct drm_property *dirty_info; | |
884840aa JB |
1083 | |
1084 | if (dev->mode_config.dirty_info_property) | |
1085 | return 0; | |
1086 | ||
1087 | dirty_info = | |
4a67d391 | 1088 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
884840aa | 1089 | "dirty", |
4a67d391 | 1090 | drm_dirty_info_enum_list, |
884840aa | 1091 | ARRAY_SIZE(drm_dirty_info_enum_list)); |
884840aa JB |
1092 | dev->mode_config.dirty_info_property = dirty_info; |
1093 | ||
1094 | return 0; | |
1095 | } | |
1096 | EXPORT_SYMBOL(drm_mode_create_dirty_info_property); | |
1097 | ||
f453ba04 DA |
1098 | /** |
1099 | * drm_mode_config_init - initialize DRM mode_configuration structure | |
1100 | * @dev: DRM device | |
1101 | * | |
f453ba04 DA |
1102 | * Initialize @dev's mode_config structure, used for tracking the graphics |
1103 | * configuration of @dev. | |
8faf6b18 DV |
1104 | * |
1105 | * Since this initializes the modeset locks, no locking is possible. Which is no | |
1106 | * problem, since this should happen single threaded at init time. It is the | |
1107 | * driver's problem to ensure this guarantee. | |
1108 | * | |
f453ba04 DA |
1109 | */ |
1110 | void drm_mode_config_init(struct drm_device *dev) | |
1111 | { | |
1112 | mutex_init(&dev->mode_config.mutex); | |
ad2563c2 | 1113 | mutex_init(&dev->mode_config.idr_mutex); |
4b096ac1 | 1114 | mutex_init(&dev->mode_config.fb_lock); |
f453ba04 | 1115 | INIT_LIST_HEAD(&dev->mode_config.fb_list); |
f453ba04 DA |
1116 | INIT_LIST_HEAD(&dev->mode_config.crtc_list); |
1117 | INIT_LIST_HEAD(&dev->mode_config.connector_list); | |
1118 | INIT_LIST_HEAD(&dev->mode_config.encoder_list); | |
1119 | INIT_LIST_HEAD(&dev->mode_config.property_list); | |
1120 | INIT_LIST_HEAD(&dev->mode_config.property_blob_list); | |
8cf5c917 | 1121 | INIT_LIST_HEAD(&dev->mode_config.plane_list); |
f453ba04 DA |
1122 | idr_init(&dev->mode_config.crtc_idr); |
1123 | ||
84849903 | 1124 | drm_modeset_lock_all(dev); |
f453ba04 | 1125 | drm_mode_create_standard_connector_properties(dev); |
84849903 | 1126 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1127 | |
1128 | /* Just to be sure */ | |
1129 | dev->mode_config.num_fb = 0; | |
1130 | dev->mode_config.num_connector = 0; | |
1131 | dev->mode_config.num_crtc = 0; | |
1132 | dev->mode_config.num_encoder = 0; | |
f453ba04 DA |
1133 | } |
1134 | EXPORT_SYMBOL(drm_mode_config_init); | |
1135 | ||
1136 | int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group) | |
1137 | { | |
1138 | uint32_t total_objects = 0; | |
1139 | ||
1140 | total_objects += dev->mode_config.num_crtc; | |
1141 | total_objects += dev->mode_config.num_connector; | |
1142 | total_objects += dev->mode_config.num_encoder; | |
1143 | ||
f453ba04 DA |
1144 | group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL); |
1145 | if (!group->id_list) | |
1146 | return -ENOMEM; | |
1147 | ||
1148 | group->num_crtcs = 0; | |
1149 | group->num_connectors = 0; | |
1150 | group->num_encoders = 0; | |
1151 | return 0; | |
1152 | } | |
1153 | ||
1154 | int drm_mode_group_init_legacy_group(struct drm_device *dev, | |
1155 | struct drm_mode_group *group) | |
1156 | { | |
1157 | struct drm_crtc *crtc; | |
1158 | struct drm_encoder *encoder; | |
1159 | struct drm_connector *connector; | |
1160 | int ret; | |
1161 | ||
1162 | if ((ret = drm_mode_group_init(dev, group))) | |
1163 | return ret; | |
1164 | ||
1165 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) | |
1166 | group->id_list[group->num_crtcs++] = crtc->base.id; | |
1167 | ||
1168 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) | |
1169 | group->id_list[group->num_crtcs + group->num_encoders++] = | |
1170 | encoder->base.id; | |
1171 | ||
1172 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) | |
1173 | group->id_list[group->num_crtcs + group->num_encoders + | |
1174 | group->num_connectors++] = connector->base.id; | |
1175 | ||
1176 | return 0; | |
1177 | } | |
9c1dfc55 | 1178 | EXPORT_SYMBOL(drm_mode_group_init_legacy_group); |
f453ba04 DA |
1179 | |
1180 | /** | |
1181 | * drm_mode_config_cleanup - free up DRM mode_config info | |
1182 | * @dev: DRM device | |
1183 | * | |
f453ba04 DA |
1184 | * Free up all the connectors and CRTCs associated with this DRM device, then |
1185 | * free up the framebuffers and associated buffer objects. | |
1186 | * | |
8faf6b18 DV |
1187 | * Note that since this /should/ happen single-threaded at driver/device |
1188 | * teardown time, no locking is required. It's the driver's job to ensure that | |
1189 | * this guarantee actually holds true. | |
1190 | * | |
f453ba04 DA |
1191 | * FIXME: cleanup any dangling user buffer objects too |
1192 | */ | |
1193 | void drm_mode_config_cleanup(struct drm_device *dev) | |
1194 | { | |
1195 | struct drm_connector *connector, *ot; | |
1196 | struct drm_crtc *crtc, *ct; | |
1197 | struct drm_encoder *encoder, *enct; | |
1198 | struct drm_framebuffer *fb, *fbt; | |
1199 | struct drm_property *property, *pt; | |
8cf5c917 | 1200 | struct drm_plane *plane, *plt; |
f453ba04 DA |
1201 | |
1202 | list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, | |
1203 | head) { | |
1204 | encoder->funcs->destroy(encoder); | |
1205 | } | |
1206 | ||
1207 | list_for_each_entry_safe(connector, ot, | |
1208 | &dev->mode_config.connector_list, head) { | |
1209 | connector->funcs->destroy(connector); | |
1210 | } | |
1211 | ||
1212 | list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, | |
1213 | head) { | |
1214 | drm_property_destroy(dev, property); | |
1215 | } | |
1216 | ||
2b677e8c DV |
1217 | /* |
1218 | * Single-threaded teardown context, so it's not required to grab the | |
4b096ac1 | 1219 | * fb_lock to protect against concurrent fb_list access. Contrary, it |
2b677e8c DV |
1220 | * would actually deadlock with the drm_framebuffer_cleanup function. |
1221 | * | |
1222 | * Also, if there are any framebuffers left, that's a driver leak now, | |
1223 | * so politely WARN about this. | |
1224 | */ | |
1225 | WARN_ON(!list_empty(&dev->mode_config.fb_list)); | |
f453ba04 | 1226 | list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { |
f7eff60e | 1227 | drm_framebuffer_remove(fb); |
f453ba04 DA |
1228 | } |
1229 | ||
8cf5c917 JB |
1230 | list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, |
1231 | head) { | |
1232 | plane->funcs->destroy(plane); | |
1233 | } | |
59ce062e | 1234 | |
3184009c CW |
1235 | list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { |
1236 | crtc->funcs->destroy(crtc); | |
1237 | } | |
1238 | ||
59ce062e SH |
1239 | idr_remove_all(&dev->mode_config.crtc_idr); |
1240 | idr_destroy(&dev->mode_config.crtc_idr); | |
f453ba04 DA |
1241 | } |
1242 | EXPORT_SYMBOL(drm_mode_config_cleanup); | |
1243 | ||
f453ba04 DA |
1244 | /** |
1245 | * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo | |
1246 | * @out: drm_mode_modeinfo struct to return to the user | |
1247 | * @in: drm_display_mode to use | |
1248 | * | |
f453ba04 DA |
1249 | * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to |
1250 | * the user. | |
1251 | */ | |
93bbf6db VS |
1252 | static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out, |
1253 | const struct drm_display_mode *in) | |
f453ba04 | 1254 | { |
e36fae38 VS |
1255 | WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX || |
1256 | in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX || | |
1257 | in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX || | |
1258 | in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX || | |
1259 | in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX, | |
1260 | "timing values too large for mode info\n"); | |
1261 | ||
f453ba04 DA |
1262 | out->clock = in->clock; |
1263 | out->hdisplay = in->hdisplay; | |
1264 | out->hsync_start = in->hsync_start; | |
1265 | out->hsync_end = in->hsync_end; | |
1266 | out->htotal = in->htotal; | |
1267 | out->hskew = in->hskew; | |
1268 | out->vdisplay = in->vdisplay; | |
1269 | out->vsync_start = in->vsync_start; | |
1270 | out->vsync_end = in->vsync_end; | |
1271 | out->vtotal = in->vtotal; | |
1272 | out->vscan = in->vscan; | |
1273 | out->vrefresh = in->vrefresh; | |
1274 | out->flags = in->flags; | |
1275 | out->type = in->type; | |
1276 | strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); | |
1277 | out->name[DRM_DISPLAY_MODE_LEN-1] = 0; | |
1278 | } | |
1279 | ||
1280 | /** | |
1281 | * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode | |
1282 | * @out: drm_display_mode to return to the user | |
1283 | * @in: drm_mode_modeinfo to use | |
1284 | * | |
f453ba04 DA |
1285 | * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to |
1286 | * the caller. | |
90367bf6 VS |
1287 | * |
1288 | * RETURNS: | |
1289 | * Zero on success, errno on failure. | |
f453ba04 | 1290 | */ |
93bbf6db VS |
1291 | static int drm_crtc_convert_umode(struct drm_display_mode *out, |
1292 | const struct drm_mode_modeinfo *in) | |
f453ba04 | 1293 | { |
90367bf6 VS |
1294 | if (in->clock > INT_MAX || in->vrefresh > INT_MAX) |
1295 | return -ERANGE; | |
1296 | ||
f453ba04 DA |
1297 | out->clock = in->clock; |
1298 | out->hdisplay = in->hdisplay; | |
1299 | out->hsync_start = in->hsync_start; | |
1300 | out->hsync_end = in->hsync_end; | |
1301 | out->htotal = in->htotal; | |
1302 | out->hskew = in->hskew; | |
1303 | out->vdisplay = in->vdisplay; | |
1304 | out->vsync_start = in->vsync_start; | |
1305 | out->vsync_end = in->vsync_end; | |
1306 | out->vtotal = in->vtotal; | |
1307 | out->vscan = in->vscan; | |
1308 | out->vrefresh = in->vrefresh; | |
1309 | out->flags = in->flags; | |
1310 | out->type = in->type; | |
1311 | strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); | |
1312 | out->name[DRM_DISPLAY_MODE_LEN-1] = 0; | |
90367bf6 VS |
1313 | |
1314 | return 0; | |
f453ba04 DA |
1315 | } |
1316 | ||
1317 | /** | |
1318 | * drm_mode_getresources - get graphics configuration | |
065a50ed DV |
1319 | * @dev: drm device for the ioctl |
1320 | * @data: data pointer for the ioctl | |
1321 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1322 | * |
f453ba04 DA |
1323 | * Construct a set of configuration description structures and return |
1324 | * them to the user, including CRTC, connector and framebuffer configuration. | |
1325 | * | |
1326 | * Called by the user via ioctl. | |
1327 | * | |
1328 | * RETURNS: | |
1329 | * Zero on success, errno on failure. | |
1330 | */ | |
1331 | int drm_mode_getresources(struct drm_device *dev, void *data, | |
1332 | struct drm_file *file_priv) | |
1333 | { | |
1334 | struct drm_mode_card_res *card_res = data; | |
1335 | struct list_head *lh; | |
1336 | struct drm_framebuffer *fb; | |
1337 | struct drm_connector *connector; | |
1338 | struct drm_crtc *crtc; | |
1339 | struct drm_encoder *encoder; | |
1340 | int ret = 0; | |
1341 | int connector_count = 0; | |
1342 | int crtc_count = 0; | |
1343 | int fb_count = 0; | |
1344 | int encoder_count = 0; | |
1345 | int copied = 0, i; | |
1346 | uint32_t __user *fb_id; | |
1347 | uint32_t __user *crtc_id; | |
1348 | uint32_t __user *connector_id; | |
1349 | uint32_t __user *encoder_id; | |
1350 | struct drm_mode_group *mode_group; | |
1351 | ||
fb3b06c8 DA |
1352 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1353 | return -EINVAL; | |
1354 | ||
f453ba04 | 1355 | |
4b096ac1 | 1356 | mutex_lock(&file_priv->fbs_lock); |
f453ba04 DA |
1357 | /* |
1358 | * For the non-control nodes we need to limit the list of resources | |
1359 | * by IDs in the group list for this node | |
1360 | */ | |
1361 | list_for_each(lh, &file_priv->fbs) | |
1362 | fb_count++; | |
1363 | ||
4b096ac1 DV |
1364 | /* handle this in 4 parts */ |
1365 | /* FBs */ | |
1366 | if (card_res->count_fbs >= fb_count) { | |
1367 | copied = 0; | |
1368 | fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; | |
1369 | list_for_each_entry(fb, &file_priv->fbs, filp_head) { | |
1370 | if (put_user(fb->base.id, fb_id + copied)) { | |
1371 | mutex_unlock(&file_priv->fbs_lock); | |
1372 | return -EFAULT; | |
1373 | } | |
1374 | copied++; | |
1375 | } | |
1376 | } | |
1377 | card_res->count_fbs = fb_count; | |
1378 | mutex_unlock(&file_priv->fbs_lock); | |
1379 | ||
1380 | drm_modeset_lock_all(dev); | |
f453ba04 DA |
1381 | mode_group = &file_priv->master->minor->mode_group; |
1382 | if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { | |
1383 | ||
1384 | list_for_each(lh, &dev->mode_config.crtc_list) | |
1385 | crtc_count++; | |
1386 | ||
1387 | list_for_each(lh, &dev->mode_config.connector_list) | |
1388 | connector_count++; | |
1389 | ||
1390 | list_for_each(lh, &dev->mode_config.encoder_list) | |
1391 | encoder_count++; | |
1392 | } else { | |
1393 | ||
1394 | crtc_count = mode_group->num_crtcs; | |
1395 | connector_count = mode_group->num_connectors; | |
1396 | encoder_count = mode_group->num_encoders; | |
1397 | } | |
1398 | ||
1399 | card_res->max_height = dev->mode_config.max_height; | |
1400 | card_res->min_height = dev->mode_config.min_height; | |
1401 | card_res->max_width = dev->mode_config.max_width; | |
1402 | card_res->min_width = dev->mode_config.min_width; | |
1403 | ||
f453ba04 DA |
1404 | /* CRTCs */ |
1405 | if (card_res->count_crtcs >= crtc_count) { | |
1406 | copied = 0; | |
1407 | crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; | |
1408 | if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { | |
1409 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, | |
1410 | head) { | |
9440106b | 1411 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
f453ba04 DA |
1412 | if (put_user(crtc->base.id, crtc_id + copied)) { |
1413 | ret = -EFAULT; | |
1414 | goto out; | |
1415 | } | |
1416 | copied++; | |
1417 | } | |
1418 | } else { | |
1419 | for (i = 0; i < mode_group->num_crtcs; i++) { | |
1420 | if (put_user(mode_group->id_list[i], | |
1421 | crtc_id + copied)) { | |
1422 | ret = -EFAULT; | |
1423 | goto out; | |
1424 | } | |
1425 | copied++; | |
1426 | } | |
1427 | } | |
1428 | } | |
1429 | card_res->count_crtcs = crtc_count; | |
1430 | ||
1431 | /* Encoders */ | |
1432 | if (card_res->count_encoders >= encoder_count) { | |
1433 | copied = 0; | |
1434 | encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; | |
1435 | if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { | |
1436 | list_for_each_entry(encoder, | |
1437 | &dev->mode_config.encoder_list, | |
1438 | head) { | |
9440106b JG |
1439 | DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id, |
1440 | drm_get_encoder_name(encoder)); | |
f453ba04 DA |
1441 | if (put_user(encoder->base.id, encoder_id + |
1442 | copied)) { | |
1443 | ret = -EFAULT; | |
1444 | goto out; | |
1445 | } | |
1446 | copied++; | |
1447 | } | |
1448 | } else { | |
1449 | for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) { | |
1450 | if (put_user(mode_group->id_list[i], | |
1451 | encoder_id + copied)) { | |
1452 | ret = -EFAULT; | |
1453 | goto out; | |
1454 | } | |
1455 | copied++; | |
1456 | } | |
1457 | ||
1458 | } | |
1459 | } | |
1460 | card_res->count_encoders = encoder_count; | |
1461 | ||
1462 | /* Connectors */ | |
1463 | if (card_res->count_connectors >= connector_count) { | |
1464 | copied = 0; | |
1465 | connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; | |
1466 | if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { | |
1467 | list_for_each_entry(connector, | |
1468 | &dev->mode_config.connector_list, | |
1469 | head) { | |
9440106b JG |
1470 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
1471 | connector->base.id, | |
1472 | drm_get_connector_name(connector)); | |
f453ba04 DA |
1473 | if (put_user(connector->base.id, |
1474 | connector_id + copied)) { | |
1475 | ret = -EFAULT; | |
1476 | goto out; | |
1477 | } | |
1478 | copied++; | |
1479 | } | |
1480 | } else { | |
1481 | int start = mode_group->num_crtcs + | |
1482 | mode_group->num_encoders; | |
1483 | for (i = start; i < start + mode_group->num_connectors; i++) { | |
1484 | if (put_user(mode_group->id_list[i], | |
1485 | connector_id + copied)) { | |
1486 | ret = -EFAULT; | |
1487 | goto out; | |
1488 | } | |
1489 | copied++; | |
1490 | } | |
1491 | } | |
1492 | } | |
1493 | card_res->count_connectors = connector_count; | |
1494 | ||
9440106b | 1495 | DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs, |
f453ba04 DA |
1496 | card_res->count_connectors, card_res->count_encoders); |
1497 | ||
1498 | out: | |
84849903 | 1499 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1500 | return ret; |
1501 | } | |
1502 | ||
1503 | /** | |
1504 | * drm_mode_getcrtc - get CRTC configuration | |
065a50ed DV |
1505 | * @dev: drm device for the ioctl |
1506 | * @data: data pointer for the ioctl | |
1507 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1508 | * |
f453ba04 DA |
1509 | * Construct a CRTC configuration structure to return to the user. |
1510 | * | |
1511 | * Called by the user via ioctl. | |
1512 | * | |
1513 | * RETURNS: | |
1514 | * Zero on success, errno on failure. | |
1515 | */ | |
1516 | int drm_mode_getcrtc(struct drm_device *dev, | |
1517 | void *data, struct drm_file *file_priv) | |
1518 | { | |
1519 | struct drm_mode_crtc *crtc_resp = data; | |
1520 | struct drm_crtc *crtc; | |
1521 | struct drm_mode_object *obj; | |
1522 | int ret = 0; | |
1523 | ||
fb3b06c8 DA |
1524 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1525 | return -EINVAL; | |
1526 | ||
84849903 | 1527 | drm_modeset_lock_all(dev); |
f453ba04 DA |
1528 | |
1529 | obj = drm_mode_object_find(dev, crtc_resp->crtc_id, | |
1530 | DRM_MODE_OBJECT_CRTC); | |
1531 | if (!obj) { | |
1532 | ret = -EINVAL; | |
1533 | goto out; | |
1534 | } | |
1535 | crtc = obj_to_crtc(obj); | |
1536 | ||
1537 | crtc_resp->x = crtc->x; | |
1538 | crtc_resp->y = crtc->y; | |
1539 | crtc_resp->gamma_size = crtc->gamma_size; | |
1540 | if (crtc->fb) | |
1541 | crtc_resp->fb_id = crtc->fb->base.id; | |
1542 | else | |
1543 | crtc_resp->fb_id = 0; | |
1544 | ||
1545 | if (crtc->enabled) { | |
1546 | ||
1547 | drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode); | |
1548 | crtc_resp->mode_valid = 1; | |
1549 | ||
1550 | } else { | |
1551 | crtc_resp->mode_valid = 0; | |
1552 | } | |
1553 | ||
1554 | out: | |
84849903 | 1555 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1556 | return ret; |
1557 | } | |
1558 | ||
1559 | /** | |
1560 | * drm_mode_getconnector - get connector configuration | |
065a50ed DV |
1561 | * @dev: drm device for the ioctl |
1562 | * @data: data pointer for the ioctl | |
1563 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1564 | * |
f453ba04 DA |
1565 | * Construct a connector configuration structure to return to the user. |
1566 | * | |
1567 | * Called by the user via ioctl. | |
1568 | * | |
1569 | * RETURNS: | |
1570 | * Zero on success, errno on failure. | |
1571 | */ | |
1572 | int drm_mode_getconnector(struct drm_device *dev, void *data, | |
1573 | struct drm_file *file_priv) | |
1574 | { | |
1575 | struct drm_mode_get_connector *out_resp = data; | |
1576 | struct drm_mode_object *obj; | |
1577 | struct drm_connector *connector; | |
1578 | struct drm_display_mode *mode; | |
1579 | int mode_count = 0; | |
1580 | int props_count = 0; | |
1581 | int encoders_count = 0; | |
1582 | int ret = 0; | |
1583 | int copied = 0; | |
1584 | int i; | |
1585 | struct drm_mode_modeinfo u_mode; | |
1586 | struct drm_mode_modeinfo __user *mode_ptr; | |
1587 | uint32_t __user *prop_ptr; | |
1588 | uint64_t __user *prop_values; | |
1589 | uint32_t __user *encoder_ptr; | |
1590 | ||
fb3b06c8 DA |
1591 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1592 | return -EINVAL; | |
1593 | ||
f453ba04 DA |
1594 | memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); |
1595 | ||
9440106b | 1596 | DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id); |
f453ba04 | 1597 | |
84849903 | 1598 | drm_modeset_lock_all(dev); |
f453ba04 DA |
1599 | |
1600 | obj = drm_mode_object_find(dev, out_resp->connector_id, | |
1601 | DRM_MODE_OBJECT_CONNECTOR); | |
1602 | if (!obj) { | |
1603 | ret = -EINVAL; | |
1604 | goto out; | |
1605 | } | |
1606 | connector = obj_to_connector(obj); | |
1607 | ||
7f88a9be | 1608 | props_count = connector->properties.count; |
f453ba04 DA |
1609 | |
1610 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { | |
1611 | if (connector->encoder_ids[i] != 0) { | |
1612 | encoders_count++; | |
1613 | } | |
1614 | } | |
1615 | ||
1616 | if (out_resp->count_modes == 0) { | |
1617 | connector->funcs->fill_modes(connector, | |
1618 | dev->mode_config.max_width, | |
1619 | dev->mode_config.max_height); | |
1620 | } | |
1621 | ||
1622 | /* delayed so we get modes regardless of pre-fill_modes state */ | |
1623 | list_for_each_entry(mode, &connector->modes, head) | |
1624 | mode_count++; | |
1625 | ||
1626 | out_resp->connector_id = connector->base.id; | |
1627 | out_resp->connector_type = connector->connector_type; | |
1628 | out_resp->connector_type_id = connector->connector_type_id; | |
1629 | out_resp->mm_width = connector->display_info.width_mm; | |
1630 | out_resp->mm_height = connector->display_info.height_mm; | |
1631 | out_resp->subpixel = connector->display_info.subpixel_order; | |
1632 | out_resp->connection = connector->status; | |
1633 | if (connector->encoder) | |
1634 | out_resp->encoder_id = connector->encoder->base.id; | |
1635 | else | |
1636 | out_resp->encoder_id = 0; | |
1637 | ||
1638 | /* | |
1639 | * This ioctl is called twice, once to determine how much space is | |
1640 | * needed, and the 2nd time to fill it. | |
1641 | */ | |
1642 | if ((out_resp->count_modes >= mode_count) && mode_count) { | |
1643 | copied = 0; | |
81f6c7f8 | 1644 | mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; |
f453ba04 DA |
1645 | list_for_each_entry(mode, &connector->modes, head) { |
1646 | drm_crtc_convert_to_umode(&u_mode, mode); | |
1647 | if (copy_to_user(mode_ptr + copied, | |
1648 | &u_mode, sizeof(u_mode))) { | |
1649 | ret = -EFAULT; | |
1650 | goto out; | |
1651 | } | |
1652 | copied++; | |
1653 | } | |
1654 | } | |
1655 | out_resp->count_modes = mode_count; | |
1656 | ||
1657 | if ((out_resp->count_props >= props_count) && props_count) { | |
1658 | copied = 0; | |
81f6c7f8 VS |
1659 | prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr); |
1660 | prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr); | |
7f88a9be PZ |
1661 | for (i = 0; i < connector->properties.count; i++) { |
1662 | if (put_user(connector->properties.ids[i], | |
1663 | prop_ptr + copied)) { | |
1664 | ret = -EFAULT; | |
1665 | goto out; | |
1666 | } | |
f453ba04 | 1667 | |
7f88a9be PZ |
1668 | if (put_user(connector->properties.values[i], |
1669 | prop_values + copied)) { | |
1670 | ret = -EFAULT; | |
1671 | goto out; | |
f453ba04 | 1672 | } |
7f88a9be | 1673 | copied++; |
f453ba04 DA |
1674 | } |
1675 | } | |
1676 | out_resp->count_props = props_count; | |
1677 | ||
1678 | if ((out_resp->count_encoders >= encoders_count) && encoders_count) { | |
1679 | copied = 0; | |
81f6c7f8 | 1680 | encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); |
f453ba04 DA |
1681 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
1682 | if (connector->encoder_ids[i] != 0) { | |
1683 | if (put_user(connector->encoder_ids[i], | |
1684 | encoder_ptr + copied)) { | |
1685 | ret = -EFAULT; | |
1686 | goto out; | |
1687 | } | |
1688 | copied++; | |
1689 | } | |
1690 | } | |
1691 | } | |
1692 | out_resp->count_encoders = encoders_count; | |
1693 | ||
1694 | out: | |
84849903 | 1695 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1696 | return ret; |
1697 | } | |
1698 | ||
1699 | int drm_mode_getencoder(struct drm_device *dev, void *data, | |
1700 | struct drm_file *file_priv) | |
1701 | { | |
1702 | struct drm_mode_get_encoder *enc_resp = data; | |
1703 | struct drm_mode_object *obj; | |
1704 | struct drm_encoder *encoder; | |
1705 | int ret = 0; | |
1706 | ||
fb3b06c8 DA |
1707 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1708 | return -EINVAL; | |
1709 | ||
84849903 | 1710 | drm_modeset_lock_all(dev); |
f453ba04 DA |
1711 | obj = drm_mode_object_find(dev, enc_resp->encoder_id, |
1712 | DRM_MODE_OBJECT_ENCODER); | |
1713 | if (!obj) { | |
1714 | ret = -EINVAL; | |
1715 | goto out; | |
1716 | } | |
1717 | encoder = obj_to_encoder(obj); | |
1718 | ||
1719 | if (encoder->crtc) | |
1720 | enc_resp->crtc_id = encoder->crtc->base.id; | |
1721 | else | |
1722 | enc_resp->crtc_id = 0; | |
1723 | enc_resp->encoder_type = encoder->encoder_type; | |
1724 | enc_resp->encoder_id = encoder->base.id; | |
1725 | enc_resp->possible_crtcs = encoder->possible_crtcs; | |
1726 | enc_resp->possible_clones = encoder->possible_clones; | |
1727 | ||
1728 | out: | |
84849903 | 1729 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1730 | return ret; |
1731 | } | |
1732 | ||
8cf5c917 JB |
1733 | /** |
1734 | * drm_mode_getplane_res - get plane info | |
1735 | * @dev: DRM device | |
1736 | * @data: ioctl data | |
1737 | * @file_priv: DRM file info | |
1738 | * | |
1739 | * Return an plane count and set of IDs. | |
1740 | */ | |
1741 | int drm_mode_getplane_res(struct drm_device *dev, void *data, | |
1742 | struct drm_file *file_priv) | |
1743 | { | |
1744 | struct drm_mode_get_plane_res *plane_resp = data; | |
1745 | struct drm_mode_config *config; | |
1746 | struct drm_plane *plane; | |
1747 | uint32_t __user *plane_ptr; | |
1748 | int copied = 0, ret = 0; | |
1749 | ||
1750 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
1751 | return -EINVAL; | |
1752 | ||
84849903 | 1753 | drm_modeset_lock_all(dev); |
8cf5c917 JB |
1754 | config = &dev->mode_config; |
1755 | ||
1756 | /* | |
1757 | * This ioctl is called twice, once to determine how much space is | |
1758 | * needed, and the 2nd time to fill it. | |
1759 | */ | |
1760 | if (config->num_plane && | |
1761 | (plane_resp->count_planes >= config->num_plane)) { | |
81f6c7f8 | 1762 | plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; |
8cf5c917 JB |
1763 | |
1764 | list_for_each_entry(plane, &config->plane_list, head) { | |
1765 | if (put_user(plane->base.id, plane_ptr + copied)) { | |
1766 | ret = -EFAULT; | |
1767 | goto out; | |
1768 | } | |
1769 | copied++; | |
1770 | } | |
1771 | } | |
1772 | plane_resp->count_planes = config->num_plane; | |
1773 | ||
1774 | out: | |
84849903 | 1775 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
1776 | return ret; |
1777 | } | |
1778 | ||
1779 | /** | |
1780 | * drm_mode_getplane - get plane info | |
1781 | * @dev: DRM device | |
1782 | * @data: ioctl data | |
1783 | * @file_priv: DRM file info | |
1784 | * | |
1785 | * Return plane info, including formats supported, gamma size, any | |
1786 | * current fb, etc. | |
1787 | */ | |
1788 | int drm_mode_getplane(struct drm_device *dev, void *data, | |
1789 | struct drm_file *file_priv) | |
1790 | { | |
1791 | struct drm_mode_get_plane *plane_resp = data; | |
1792 | struct drm_mode_object *obj; | |
1793 | struct drm_plane *plane; | |
1794 | uint32_t __user *format_ptr; | |
1795 | int ret = 0; | |
1796 | ||
1797 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
1798 | return -EINVAL; | |
1799 | ||
84849903 | 1800 | drm_modeset_lock_all(dev); |
8cf5c917 JB |
1801 | obj = drm_mode_object_find(dev, plane_resp->plane_id, |
1802 | DRM_MODE_OBJECT_PLANE); | |
1803 | if (!obj) { | |
1804 | ret = -ENOENT; | |
1805 | goto out; | |
1806 | } | |
1807 | plane = obj_to_plane(obj); | |
1808 | ||
1809 | if (plane->crtc) | |
1810 | plane_resp->crtc_id = plane->crtc->base.id; | |
1811 | else | |
1812 | plane_resp->crtc_id = 0; | |
1813 | ||
1814 | if (plane->fb) | |
1815 | plane_resp->fb_id = plane->fb->base.id; | |
1816 | else | |
1817 | plane_resp->fb_id = 0; | |
1818 | ||
1819 | plane_resp->plane_id = plane->base.id; | |
1820 | plane_resp->possible_crtcs = plane->possible_crtcs; | |
1821 | plane_resp->gamma_size = plane->gamma_size; | |
1822 | ||
1823 | /* | |
1824 | * This ioctl is called twice, once to determine how much space is | |
1825 | * needed, and the 2nd time to fill it. | |
1826 | */ | |
1827 | if (plane->format_count && | |
1828 | (plane_resp->count_format_types >= plane->format_count)) { | |
81f6c7f8 | 1829 | format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; |
8cf5c917 JB |
1830 | if (copy_to_user(format_ptr, |
1831 | plane->format_types, | |
1832 | sizeof(uint32_t) * plane->format_count)) { | |
1833 | ret = -EFAULT; | |
1834 | goto out; | |
1835 | } | |
1836 | } | |
1837 | plane_resp->count_format_types = plane->format_count; | |
1838 | ||
1839 | out: | |
84849903 | 1840 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
1841 | return ret; |
1842 | } | |
1843 | ||
1844 | /** | |
1845 | * drm_mode_setplane - set up or tear down an plane | |
1846 | * @dev: DRM device | |
1847 | * @data: ioctl data* | |
065a50ed | 1848 | * @file_priv: DRM file info |
8cf5c917 JB |
1849 | * |
1850 | * Set plane info, including placement, fb, scaling, and other factors. | |
1851 | * Or pass a NULL fb to disable. | |
1852 | */ | |
1853 | int drm_mode_setplane(struct drm_device *dev, void *data, | |
1854 | struct drm_file *file_priv) | |
1855 | { | |
1856 | struct drm_mode_set_plane *plane_req = data; | |
1857 | struct drm_mode_object *obj; | |
1858 | struct drm_plane *plane; | |
1859 | struct drm_crtc *crtc; | |
6c2a7532 | 1860 | struct drm_framebuffer *fb = NULL, *old_fb = NULL; |
8cf5c917 | 1861 | int ret = 0; |
42ef8789 | 1862 | unsigned int fb_width, fb_height; |
62443be6 | 1863 | int i; |
8cf5c917 JB |
1864 | |
1865 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
1866 | return -EINVAL; | |
1867 | ||
8cf5c917 JB |
1868 | /* |
1869 | * First, find the plane, crtc, and fb objects. If not available, | |
1870 | * we don't bother to call the driver. | |
1871 | */ | |
1872 | obj = drm_mode_object_find(dev, plane_req->plane_id, | |
1873 | DRM_MODE_OBJECT_PLANE); | |
1874 | if (!obj) { | |
1875 | DRM_DEBUG_KMS("Unknown plane ID %d\n", | |
1876 | plane_req->plane_id); | |
6c2a7532 | 1877 | return -ENOENT; |
8cf5c917 JB |
1878 | } |
1879 | plane = obj_to_plane(obj); | |
1880 | ||
1881 | /* No fb means shut it down */ | |
1882 | if (!plane_req->fb_id) { | |
6c2a7532 DV |
1883 | drm_modeset_lock_all(dev); |
1884 | old_fb = plane->fb; | |
8cf5c917 | 1885 | plane->funcs->disable_plane(plane); |
e5e3b44c VS |
1886 | plane->crtc = NULL; |
1887 | plane->fb = NULL; | |
6c2a7532 | 1888 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
1889 | goto out; |
1890 | } | |
1891 | ||
1892 | obj = drm_mode_object_find(dev, plane_req->crtc_id, | |
1893 | DRM_MODE_OBJECT_CRTC); | |
1894 | if (!obj) { | |
1895 | DRM_DEBUG_KMS("Unknown crtc ID %d\n", | |
1896 | plane_req->crtc_id); | |
1897 | ret = -ENOENT; | |
1898 | goto out; | |
1899 | } | |
1900 | crtc = obj_to_crtc(obj); | |
1901 | ||
786b99ed DV |
1902 | fb = drm_framebuffer_lookup(dev, plane_req->fb_id); |
1903 | if (!fb) { | |
8cf5c917 JB |
1904 | DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", |
1905 | plane_req->fb_id); | |
1906 | ret = -ENOENT; | |
1907 | goto out; | |
1908 | } | |
8cf5c917 | 1909 | |
62443be6 VS |
1910 | /* Check whether this plane supports the fb pixel format. */ |
1911 | for (i = 0; i < plane->format_count; i++) | |
1912 | if (fb->pixel_format == plane->format_types[i]) | |
1913 | break; | |
1914 | if (i == plane->format_count) { | |
1915 | DRM_DEBUG_KMS("Invalid pixel format 0x%08x\n", fb->pixel_format); | |
1916 | ret = -EINVAL; | |
1917 | goto out; | |
1918 | } | |
1919 | ||
42ef8789 VS |
1920 | fb_width = fb->width << 16; |
1921 | fb_height = fb->height << 16; | |
1922 | ||
1923 | /* Make sure source coordinates are inside the fb. */ | |
1924 | if (plane_req->src_w > fb_width || | |
1925 | plane_req->src_x > fb_width - plane_req->src_w || | |
1926 | plane_req->src_h > fb_height || | |
1927 | plane_req->src_y > fb_height - plane_req->src_h) { | |
1928 | DRM_DEBUG_KMS("Invalid source coordinates " | |
1929 | "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", | |
1930 | plane_req->src_w >> 16, | |
1931 | ((plane_req->src_w & 0xffff) * 15625) >> 10, | |
1932 | plane_req->src_h >> 16, | |
1933 | ((plane_req->src_h & 0xffff) * 15625) >> 10, | |
1934 | plane_req->src_x >> 16, | |
1935 | ((plane_req->src_x & 0xffff) * 15625) >> 10, | |
1936 | plane_req->src_y >> 16, | |
1937 | ((plane_req->src_y & 0xffff) * 15625) >> 10); | |
1938 | ret = -ENOSPC; | |
1939 | goto out; | |
1940 | } | |
1941 | ||
687a0400 VS |
1942 | /* Give drivers some help against integer overflows */ |
1943 | if (plane_req->crtc_w > INT_MAX || | |
1944 | plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w || | |
1945 | plane_req->crtc_h > INT_MAX || | |
1946 | plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) { | |
1947 | DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", | |
1948 | plane_req->crtc_w, plane_req->crtc_h, | |
1949 | plane_req->crtc_x, plane_req->crtc_y); | |
1950 | ret = -ERANGE; | |
1951 | goto out; | |
1952 | } | |
1953 | ||
6c2a7532 | 1954 | drm_modeset_lock_all(dev); |
8cf5c917 JB |
1955 | ret = plane->funcs->update_plane(plane, crtc, fb, |
1956 | plane_req->crtc_x, plane_req->crtc_y, | |
1957 | plane_req->crtc_w, plane_req->crtc_h, | |
1958 | plane_req->src_x, plane_req->src_y, | |
1959 | plane_req->src_w, plane_req->src_h); | |
1960 | if (!ret) { | |
6c2a7532 DV |
1961 | old_fb = plane->fb; |
1962 | fb = NULL; | |
8cf5c917 JB |
1963 | plane->crtc = crtc; |
1964 | plane->fb = fb; | |
1965 | } | |
6c2a7532 | 1966 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
1967 | |
1968 | out: | |
6c2a7532 DV |
1969 | if (fb) |
1970 | drm_framebuffer_unreference(fb); | |
1971 | if (old_fb) | |
1972 | drm_framebuffer_unreference(old_fb); | |
8cf5c917 JB |
1973 | |
1974 | return ret; | |
1975 | } | |
1976 | ||
2d13b679 DV |
1977 | /** |
1978 | * drm_mode_set_config_internal - helper to call ->set_config | |
1979 | * @set: modeset config to set | |
1980 | * | |
1981 | * This is a little helper to wrap internal calls to the ->set_config driver | |
1982 | * interface. The only thing it adds is correct refcounting dance. | |
1983 | */ | |
1984 | int drm_mode_set_config_internal(struct drm_mode_set *set) | |
1985 | { | |
1986 | struct drm_crtc *crtc = set->crtc; | |
b0d12325 DV |
1987 | struct drm_framebuffer *fb, *old_fb; |
1988 | int ret; | |
1989 | ||
1990 | old_fb = crtc->fb; | |
1991 | fb = set->fb; | |
2d13b679 | 1992 | |
b0d12325 DV |
1993 | ret = crtc->funcs->set_config(set); |
1994 | if (ret == 0) { | |
1995 | if (old_fb) | |
1996 | drm_framebuffer_unreference(old_fb); | |
1997 | if (fb) | |
1998 | drm_framebuffer_reference(fb); | |
1999 | } | |
2000 | ||
2001 | return ret; | |
2d13b679 DV |
2002 | } |
2003 | EXPORT_SYMBOL(drm_mode_set_config_internal); | |
2004 | ||
f453ba04 DA |
2005 | /** |
2006 | * drm_mode_setcrtc - set CRTC configuration | |
065a50ed DV |
2007 | * @dev: drm device for the ioctl |
2008 | * @data: data pointer for the ioctl | |
2009 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2010 | * |
f453ba04 DA |
2011 | * Build a new CRTC configuration based on user request. |
2012 | * | |
2013 | * Called by the user via ioctl. | |
2014 | * | |
2015 | * RETURNS: | |
2016 | * Zero on success, errno on failure. | |
2017 | */ | |
2018 | int drm_mode_setcrtc(struct drm_device *dev, void *data, | |
2019 | struct drm_file *file_priv) | |
2020 | { | |
2021 | struct drm_mode_config *config = &dev->mode_config; | |
2022 | struct drm_mode_crtc *crtc_req = data; | |
2023 | struct drm_mode_object *obj; | |
6653cc8d | 2024 | struct drm_crtc *crtc; |
f453ba04 DA |
2025 | struct drm_connector **connector_set = NULL, *connector; |
2026 | struct drm_framebuffer *fb = NULL; | |
2027 | struct drm_display_mode *mode = NULL; | |
2028 | struct drm_mode_set set; | |
2029 | uint32_t __user *set_connectors_ptr; | |
4a1b0714 | 2030 | int ret; |
f453ba04 DA |
2031 | int i; |
2032 | ||
fb3b06c8 DA |
2033 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2034 | return -EINVAL; | |
2035 | ||
1d97e915 VS |
2036 | /* For some reason crtc x/y offsets are signed internally. */ |
2037 | if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX) | |
2038 | return -ERANGE; | |
2039 | ||
84849903 | 2040 | drm_modeset_lock_all(dev); |
f453ba04 DA |
2041 | obj = drm_mode_object_find(dev, crtc_req->crtc_id, |
2042 | DRM_MODE_OBJECT_CRTC); | |
2043 | if (!obj) { | |
58367ed6 | 2044 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); |
f453ba04 DA |
2045 | ret = -EINVAL; |
2046 | goto out; | |
2047 | } | |
2048 | crtc = obj_to_crtc(obj); | |
9440106b | 2049 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
f453ba04 DA |
2050 | |
2051 | if (crtc_req->mode_valid) { | |
7c80e128 | 2052 | int hdisplay, vdisplay; |
f453ba04 DA |
2053 | /* If we have a mode we need a framebuffer. */ |
2054 | /* If we pass -1, set the mode with the currently bound fb */ | |
2055 | if (crtc_req->fb_id == -1) { | |
6653cc8d VS |
2056 | if (!crtc->fb) { |
2057 | DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); | |
2058 | ret = -EINVAL; | |
2059 | goto out; | |
f453ba04 | 2060 | } |
6653cc8d | 2061 | fb = crtc->fb; |
b0d12325 DV |
2062 | /* Make refcounting symmetric with the lookup path. */ |
2063 | drm_framebuffer_reference(fb); | |
f453ba04 | 2064 | } else { |
786b99ed DV |
2065 | fb = drm_framebuffer_lookup(dev, crtc_req->fb_id); |
2066 | if (!fb) { | |
58367ed6 ZY |
2067 | DRM_DEBUG_KMS("Unknown FB ID%d\n", |
2068 | crtc_req->fb_id); | |
f453ba04 DA |
2069 | ret = -EINVAL; |
2070 | goto out; | |
2071 | } | |
f453ba04 DA |
2072 | } |
2073 | ||
2074 | mode = drm_mode_create(dev); | |
ee34ab5b VS |
2075 | if (!mode) { |
2076 | ret = -ENOMEM; | |
2077 | goto out; | |
2078 | } | |
2079 | ||
90367bf6 VS |
2080 | ret = drm_crtc_convert_umode(mode, &crtc_req->mode); |
2081 | if (ret) { | |
2082 | DRM_DEBUG_KMS("Invalid mode\n"); | |
2083 | goto out; | |
2084 | } | |
2085 | ||
f453ba04 | 2086 | drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); |
5f61bb42 | 2087 | |
7c80e128 RC |
2088 | hdisplay = mode->hdisplay; |
2089 | vdisplay = mode->vdisplay; | |
2090 | ||
2091 | if (crtc->invert_dimensions) | |
2092 | swap(hdisplay, vdisplay); | |
2093 | ||
2094 | if (hdisplay > fb->width || | |
2095 | vdisplay > fb->height || | |
2096 | crtc_req->x > fb->width - hdisplay || | |
2097 | crtc_req->y > fb->height - vdisplay) { | |
2098 | DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n", | |
2099 | fb->width, fb->height, | |
2100 | hdisplay, vdisplay, crtc_req->x, crtc_req->y, | |
2101 | crtc->invert_dimensions ? " (inverted)" : ""); | |
5f61bb42 VS |
2102 | ret = -ENOSPC; |
2103 | goto out; | |
2104 | } | |
f453ba04 DA |
2105 | } |
2106 | ||
2107 | if (crtc_req->count_connectors == 0 && mode) { | |
58367ed6 | 2108 | DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); |
f453ba04 DA |
2109 | ret = -EINVAL; |
2110 | goto out; | |
2111 | } | |
2112 | ||
7781de74 | 2113 | if (crtc_req->count_connectors > 0 && (!mode || !fb)) { |
58367ed6 | 2114 | DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", |
f453ba04 DA |
2115 | crtc_req->count_connectors); |
2116 | ret = -EINVAL; | |
2117 | goto out; | |
2118 | } | |
2119 | ||
2120 | if (crtc_req->count_connectors > 0) { | |
2121 | u32 out_id; | |
2122 | ||
2123 | /* Avoid unbounded kernel memory allocation */ | |
2124 | if (crtc_req->count_connectors > config->num_connector) { | |
2125 | ret = -EINVAL; | |
2126 | goto out; | |
2127 | } | |
2128 | ||
2129 | connector_set = kmalloc(crtc_req->count_connectors * | |
2130 | sizeof(struct drm_connector *), | |
2131 | GFP_KERNEL); | |
2132 | if (!connector_set) { | |
2133 | ret = -ENOMEM; | |
2134 | goto out; | |
2135 | } | |
2136 | ||
2137 | for (i = 0; i < crtc_req->count_connectors; i++) { | |
81f6c7f8 | 2138 | set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; |
f453ba04 DA |
2139 | if (get_user(out_id, &set_connectors_ptr[i])) { |
2140 | ret = -EFAULT; | |
2141 | goto out; | |
2142 | } | |
2143 | ||
2144 | obj = drm_mode_object_find(dev, out_id, | |
2145 | DRM_MODE_OBJECT_CONNECTOR); | |
2146 | if (!obj) { | |
58367ed6 ZY |
2147 | DRM_DEBUG_KMS("Connector id %d unknown\n", |
2148 | out_id); | |
f453ba04 DA |
2149 | ret = -EINVAL; |
2150 | goto out; | |
2151 | } | |
2152 | connector = obj_to_connector(obj); | |
9440106b JG |
2153 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
2154 | connector->base.id, | |
2155 | drm_get_connector_name(connector)); | |
f453ba04 DA |
2156 | |
2157 | connector_set[i] = connector; | |
2158 | } | |
2159 | } | |
2160 | ||
2161 | set.crtc = crtc; | |
2162 | set.x = crtc_req->x; | |
2163 | set.y = crtc_req->y; | |
2164 | set.mode = mode; | |
2165 | set.connectors = connector_set; | |
2166 | set.num_connectors = crtc_req->count_connectors; | |
5ef5f72f | 2167 | set.fb = fb; |
2d13b679 | 2168 | ret = drm_mode_set_config_internal(&set); |
f453ba04 DA |
2169 | |
2170 | out: | |
b0d12325 DV |
2171 | if (fb) |
2172 | drm_framebuffer_unreference(fb); | |
2173 | ||
f453ba04 | 2174 | kfree(connector_set); |
ee34ab5b | 2175 | drm_mode_destroy(dev, mode); |
84849903 | 2176 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
2177 | return ret; |
2178 | } | |
2179 | ||
2180 | int drm_mode_cursor_ioctl(struct drm_device *dev, | |
2181 | void *data, struct drm_file *file_priv) | |
2182 | { | |
2183 | struct drm_mode_cursor *req = data; | |
2184 | struct drm_mode_object *obj; | |
2185 | struct drm_crtc *crtc; | |
2186 | int ret = 0; | |
2187 | ||
fb3b06c8 DA |
2188 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2189 | return -EINVAL; | |
2190 | ||
7c4eaca4 | 2191 | if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) |
f453ba04 | 2192 | return -EINVAL; |
f453ba04 | 2193 | |
e0c8463a | 2194 | obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC); |
f453ba04 | 2195 | if (!obj) { |
58367ed6 | 2196 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); |
dac35663 | 2197 | return -EINVAL; |
f453ba04 DA |
2198 | } |
2199 | crtc = obj_to_crtc(obj); | |
2200 | ||
dac35663 | 2201 | mutex_lock(&crtc->mutex); |
f453ba04 DA |
2202 | if (req->flags & DRM_MODE_CURSOR_BO) { |
2203 | if (!crtc->funcs->cursor_set) { | |
f453ba04 DA |
2204 | ret = -ENXIO; |
2205 | goto out; | |
2206 | } | |
2207 | /* Turns off the cursor if handle is 0 */ | |
2208 | ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, | |
2209 | req->width, req->height); | |
2210 | } | |
2211 | ||
2212 | if (req->flags & DRM_MODE_CURSOR_MOVE) { | |
2213 | if (crtc->funcs->cursor_move) { | |
2214 | ret = crtc->funcs->cursor_move(crtc, req->x, req->y); | |
2215 | } else { | |
f453ba04 DA |
2216 | ret = -EFAULT; |
2217 | goto out; | |
2218 | } | |
2219 | } | |
2220 | out: | |
dac35663 DV |
2221 | mutex_unlock(&crtc->mutex); |
2222 | ||
f453ba04 DA |
2223 | return ret; |
2224 | } | |
2225 | ||
308e5bcb JB |
2226 | /* Original addfb only supported RGB formats, so figure out which one */ |
2227 | uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth) | |
2228 | { | |
2229 | uint32_t fmt; | |
2230 | ||
2231 | switch (bpp) { | |
2232 | case 8: | |
04b3924d | 2233 | fmt = DRM_FORMAT_RGB332; |
308e5bcb JB |
2234 | break; |
2235 | case 16: | |
2236 | if (depth == 15) | |
04b3924d | 2237 | fmt = DRM_FORMAT_XRGB1555; |
308e5bcb | 2238 | else |
04b3924d | 2239 | fmt = DRM_FORMAT_RGB565; |
308e5bcb JB |
2240 | break; |
2241 | case 24: | |
04b3924d | 2242 | fmt = DRM_FORMAT_RGB888; |
308e5bcb JB |
2243 | break; |
2244 | case 32: | |
2245 | if (depth == 24) | |
04b3924d | 2246 | fmt = DRM_FORMAT_XRGB8888; |
308e5bcb | 2247 | else if (depth == 30) |
04b3924d | 2248 | fmt = DRM_FORMAT_XRGB2101010; |
308e5bcb | 2249 | else |
04b3924d | 2250 | fmt = DRM_FORMAT_ARGB8888; |
308e5bcb JB |
2251 | break; |
2252 | default: | |
04b3924d VS |
2253 | DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n"); |
2254 | fmt = DRM_FORMAT_XRGB8888; | |
308e5bcb JB |
2255 | break; |
2256 | } | |
2257 | ||
2258 | return fmt; | |
2259 | } | |
2260 | EXPORT_SYMBOL(drm_mode_legacy_fb_format); | |
2261 | ||
f453ba04 DA |
2262 | /** |
2263 | * drm_mode_addfb - add an FB to the graphics configuration | |
065a50ed DV |
2264 | * @dev: drm device for the ioctl |
2265 | * @data: data pointer for the ioctl | |
2266 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2267 | * |
f453ba04 DA |
2268 | * Add a new FB to the specified CRTC, given a user request. |
2269 | * | |
2270 | * Called by the user via ioctl. | |
2271 | * | |
2272 | * RETURNS: | |
2273 | * Zero on success, errno on failure. | |
2274 | */ | |
2275 | int drm_mode_addfb(struct drm_device *dev, | |
2276 | void *data, struct drm_file *file_priv) | |
2277 | { | |
308e5bcb JB |
2278 | struct drm_mode_fb_cmd *or = data; |
2279 | struct drm_mode_fb_cmd2 r = {}; | |
2280 | struct drm_mode_config *config = &dev->mode_config; | |
2281 | struct drm_framebuffer *fb; | |
2282 | int ret = 0; | |
2283 | ||
2284 | /* Use new struct with format internally */ | |
2285 | r.fb_id = or->fb_id; | |
2286 | r.width = or->width; | |
2287 | r.height = or->height; | |
2288 | r.pitches[0] = or->pitch; | |
2289 | r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth); | |
2290 | r.handles[0] = or->handle; | |
2291 | ||
2292 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2293 | return -EINVAL; | |
2294 | ||
acb4b992 | 2295 | if ((config->min_width > r.width) || (r.width > config->max_width)) |
308e5bcb | 2296 | return -EINVAL; |
acb4b992 JB |
2297 | |
2298 | if ((config->min_height > r.height) || (r.height > config->max_height)) | |
308e5bcb | 2299 | return -EINVAL; |
308e5bcb | 2300 | |
308e5bcb JB |
2301 | fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r); |
2302 | if (IS_ERR(fb)) { | |
1aa1b11c | 2303 | DRM_DEBUG_KMS("could not create framebuffer\n"); |
4b096ac1 DV |
2304 | drm_modeset_unlock_all(dev); |
2305 | return PTR_ERR(fb); | |
308e5bcb JB |
2306 | } |
2307 | ||
4b096ac1 | 2308 | mutex_lock(&file_priv->fbs_lock); |
308e5bcb JB |
2309 | or->fb_id = fb->base.id; |
2310 | list_add(&fb->filp_head, &file_priv->fbs); | |
2311 | DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); | |
4b096ac1 | 2312 | mutex_unlock(&file_priv->fbs_lock); |
4b096ac1 | 2313 | |
308e5bcb JB |
2314 | return ret; |
2315 | } | |
2316 | ||
cff91b62 | 2317 | static int format_check(const struct drm_mode_fb_cmd2 *r) |
935b5977 VS |
2318 | { |
2319 | uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN; | |
2320 | ||
2321 | switch (format) { | |
2322 | case DRM_FORMAT_C8: | |
2323 | case DRM_FORMAT_RGB332: | |
2324 | case DRM_FORMAT_BGR233: | |
2325 | case DRM_FORMAT_XRGB4444: | |
2326 | case DRM_FORMAT_XBGR4444: | |
2327 | case DRM_FORMAT_RGBX4444: | |
2328 | case DRM_FORMAT_BGRX4444: | |
2329 | case DRM_FORMAT_ARGB4444: | |
2330 | case DRM_FORMAT_ABGR4444: | |
2331 | case DRM_FORMAT_RGBA4444: | |
2332 | case DRM_FORMAT_BGRA4444: | |
2333 | case DRM_FORMAT_XRGB1555: | |
2334 | case DRM_FORMAT_XBGR1555: | |
2335 | case DRM_FORMAT_RGBX5551: | |
2336 | case DRM_FORMAT_BGRX5551: | |
2337 | case DRM_FORMAT_ARGB1555: | |
2338 | case DRM_FORMAT_ABGR1555: | |
2339 | case DRM_FORMAT_RGBA5551: | |
2340 | case DRM_FORMAT_BGRA5551: | |
2341 | case DRM_FORMAT_RGB565: | |
2342 | case DRM_FORMAT_BGR565: | |
2343 | case DRM_FORMAT_RGB888: | |
2344 | case DRM_FORMAT_BGR888: | |
2345 | case DRM_FORMAT_XRGB8888: | |
2346 | case DRM_FORMAT_XBGR8888: | |
2347 | case DRM_FORMAT_RGBX8888: | |
2348 | case DRM_FORMAT_BGRX8888: | |
2349 | case DRM_FORMAT_ARGB8888: | |
2350 | case DRM_FORMAT_ABGR8888: | |
2351 | case DRM_FORMAT_RGBA8888: | |
2352 | case DRM_FORMAT_BGRA8888: | |
2353 | case DRM_FORMAT_XRGB2101010: | |
2354 | case DRM_FORMAT_XBGR2101010: | |
2355 | case DRM_FORMAT_RGBX1010102: | |
2356 | case DRM_FORMAT_BGRX1010102: | |
2357 | case DRM_FORMAT_ARGB2101010: | |
2358 | case DRM_FORMAT_ABGR2101010: | |
2359 | case DRM_FORMAT_RGBA1010102: | |
2360 | case DRM_FORMAT_BGRA1010102: | |
2361 | case DRM_FORMAT_YUYV: | |
2362 | case DRM_FORMAT_YVYU: | |
2363 | case DRM_FORMAT_UYVY: | |
2364 | case DRM_FORMAT_VYUY: | |
2365 | case DRM_FORMAT_AYUV: | |
2366 | case DRM_FORMAT_NV12: | |
2367 | case DRM_FORMAT_NV21: | |
2368 | case DRM_FORMAT_NV16: | |
2369 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
2370 | case DRM_FORMAT_NV24: |
2371 | case DRM_FORMAT_NV42: | |
935b5977 VS |
2372 | case DRM_FORMAT_YUV410: |
2373 | case DRM_FORMAT_YVU410: | |
2374 | case DRM_FORMAT_YUV411: | |
2375 | case DRM_FORMAT_YVU411: | |
2376 | case DRM_FORMAT_YUV420: | |
2377 | case DRM_FORMAT_YVU420: | |
2378 | case DRM_FORMAT_YUV422: | |
2379 | case DRM_FORMAT_YVU422: | |
2380 | case DRM_FORMAT_YUV444: | |
2381 | case DRM_FORMAT_YVU444: | |
2382 | return 0; | |
2383 | default: | |
2384 | return -EINVAL; | |
2385 | } | |
2386 | } | |
2387 | ||
cff91b62 | 2388 | static int framebuffer_check(const struct drm_mode_fb_cmd2 *r) |
d1b45d5f VS |
2389 | { |
2390 | int ret, hsub, vsub, num_planes, i; | |
2391 | ||
2392 | ret = format_check(r); | |
2393 | if (ret) { | |
1aa1b11c | 2394 | DRM_DEBUG_KMS("bad framebuffer format 0x%08x\n", r->pixel_format); |
d1b45d5f VS |
2395 | return ret; |
2396 | } | |
2397 | ||
2398 | hsub = drm_format_horz_chroma_subsampling(r->pixel_format); | |
2399 | vsub = drm_format_vert_chroma_subsampling(r->pixel_format); | |
2400 | num_planes = drm_format_num_planes(r->pixel_format); | |
2401 | ||
2402 | if (r->width == 0 || r->width % hsub) { | |
1aa1b11c | 2403 | DRM_DEBUG_KMS("bad framebuffer width %u\n", r->height); |
d1b45d5f VS |
2404 | return -EINVAL; |
2405 | } | |
2406 | ||
2407 | if (r->height == 0 || r->height % vsub) { | |
1aa1b11c | 2408 | DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height); |
d1b45d5f VS |
2409 | return -EINVAL; |
2410 | } | |
2411 | ||
2412 | for (i = 0; i < num_planes; i++) { | |
2413 | unsigned int width = r->width / (i != 0 ? hsub : 1); | |
b180b5d1 VS |
2414 | unsigned int height = r->height / (i != 0 ? vsub : 1); |
2415 | unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i); | |
d1b45d5f VS |
2416 | |
2417 | if (!r->handles[i]) { | |
1aa1b11c | 2418 | DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i); |
d1b45d5f VS |
2419 | return -EINVAL; |
2420 | } | |
2421 | ||
b180b5d1 VS |
2422 | if ((uint64_t) width * cpp > UINT_MAX) |
2423 | return -ERANGE; | |
2424 | ||
2425 | if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX) | |
2426 | return -ERANGE; | |
2427 | ||
2428 | if (r->pitches[i] < width * cpp) { | |
1aa1b11c | 2429 | DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i); |
d1b45d5f VS |
2430 | return -EINVAL; |
2431 | } | |
2432 | } | |
2433 | ||
2434 | return 0; | |
2435 | } | |
2436 | ||
308e5bcb JB |
2437 | /** |
2438 | * drm_mode_addfb2 - add an FB to the graphics configuration | |
065a50ed DV |
2439 | * @dev: drm device for the ioctl |
2440 | * @data: data pointer for the ioctl | |
2441 | * @file_priv: drm file for the ioctl call | |
308e5bcb | 2442 | * |
308e5bcb JB |
2443 | * Add a new FB to the specified CRTC, given a user request with format. |
2444 | * | |
2445 | * Called by the user via ioctl. | |
2446 | * | |
2447 | * RETURNS: | |
2448 | * Zero on success, errno on failure. | |
2449 | */ | |
2450 | int drm_mode_addfb2(struct drm_device *dev, | |
2451 | void *data, struct drm_file *file_priv) | |
2452 | { | |
2453 | struct drm_mode_fb_cmd2 *r = data; | |
f453ba04 DA |
2454 | struct drm_mode_config *config = &dev->mode_config; |
2455 | struct drm_framebuffer *fb; | |
4a1b0714 | 2456 | int ret; |
f453ba04 | 2457 | |
fb3b06c8 DA |
2458 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2459 | return -EINVAL; | |
2460 | ||
e3cc3520 VS |
2461 | if (r->flags & ~DRM_MODE_FB_INTERLACED) { |
2462 | DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags); | |
2463 | return -EINVAL; | |
2464 | } | |
2465 | ||
f453ba04 | 2466 | if ((config->min_width > r->width) || (r->width > config->max_width)) { |
1aa1b11c | 2467 | DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n", |
8cf5c917 | 2468 | r->width, config->min_width, config->max_width); |
f453ba04 DA |
2469 | return -EINVAL; |
2470 | } | |
2471 | if ((config->min_height > r->height) || (r->height > config->max_height)) { | |
1aa1b11c | 2472 | DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n", |
8cf5c917 | 2473 | r->height, config->min_height, config->max_height); |
f453ba04 DA |
2474 | return -EINVAL; |
2475 | } | |
2476 | ||
d1b45d5f VS |
2477 | ret = framebuffer_check(r); |
2478 | if (ret) | |
935b5977 | 2479 | return ret; |
935b5977 | 2480 | |
f453ba04 | 2481 | fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); |
cce13ff7 | 2482 | if (IS_ERR(fb)) { |
1aa1b11c | 2483 | DRM_DEBUG_KMS("could not create framebuffer\n"); |
4b096ac1 DV |
2484 | drm_modeset_unlock_all(dev); |
2485 | return PTR_ERR(fb); | |
f453ba04 DA |
2486 | } |
2487 | ||
4b096ac1 | 2488 | mutex_lock(&file_priv->fbs_lock); |
e0c8463a | 2489 | r->fb_id = fb->base.id; |
f453ba04 | 2490 | list_add(&fb->filp_head, &file_priv->fbs); |
9440106b | 2491 | DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); |
4b096ac1 | 2492 | mutex_unlock(&file_priv->fbs_lock); |
f453ba04 | 2493 | |
4b096ac1 | 2494 | |
f453ba04 DA |
2495 | return ret; |
2496 | } | |
2497 | ||
2498 | /** | |
2499 | * drm_mode_rmfb - remove an FB from the configuration | |
065a50ed DV |
2500 | * @dev: drm device for the ioctl |
2501 | * @data: data pointer for the ioctl | |
2502 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2503 | * |
f453ba04 DA |
2504 | * Remove the FB specified by the user. |
2505 | * | |
2506 | * Called by the user via ioctl. | |
2507 | * | |
2508 | * RETURNS: | |
2509 | * Zero on success, errno on failure. | |
2510 | */ | |
2511 | int drm_mode_rmfb(struct drm_device *dev, | |
2512 | void *data, struct drm_file *file_priv) | |
2513 | { | |
f453ba04 DA |
2514 | struct drm_framebuffer *fb = NULL; |
2515 | struct drm_framebuffer *fbl = NULL; | |
2516 | uint32_t *id = data; | |
f453ba04 DA |
2517 | int found = 0; |
2518 | ||
fb3b06c8 DA |
2519 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2520 | return -EINVAL; | |
2521 | ||
4b096ac1 | 2522 | mutex_lock(&file_priv->fbs_lock); |
2b677e8c DV |
2523 | mutex_lock(&dev->mode_config.fb_lock); |
2524 | fb = __drm_framebuffer_lookup(dev, *id); | |
2525 | if (!fb) | |
2526 | goto fail_lookup; | |
2527 | ||
f453ba04 DA |
2528 | list_for_each_entry(fbl, &file_priv->fbs, filp_head) |
2529 | if (fb == fbl) | |
2530 | found = 1; | |
2b677e8c DV |
2531 | if (!found) |
2532 | goto fail_lookup; | |
2533 | ||
2534 | /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ | |
2535 | __drm_framebuffer_unregister(dev, fb); | |
f453ba04 | 2536 | |
4b096ac1 | 2537 | list_del_init(&fb->filp_head); |
2b677e8c | 2538 | mutex_unlock(&dev->mode_config.fb_lock); |
4b096ac1 | 2539 | mutex_unlock(&file_priv->fbs_lock); |
f453ba04 | 2540 | |
2b677e8c | 2541 | drm_modeset_lock_all(dev); |
4b096ac1 | 2542 | drm_framebuffer_remove(fb); |
84849903 | 2543 | drm_modeset_unlock_all(dev); |
4b096ac1 | 2544 | |
2b677e8c DV |
2545 | return 0; |
2546 | ||
2547 | fail_lookup: | |
2548 | mutex_unlock(&dev->mode_config.fb_lock); | |
2549 | mutex_unlock(&file_priv->fbs_lock); | |
2550 | ||
2551 | return -EINVAL; | |
f453ba04 DA |
2552 | } |
2553 | ||
2554 | /** | |
2555 | * drm_mode_getfb - get FB info | |
065a50ed DV |
2556 | * @dev: drm device for the ioctl |
2557 | * @data: data pointer for the ioctl | |
2558 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2559 | * |
f453ba04 DA |
2560 | * Lookup the FB given its ID and return info about it. |
2561 | * | |
2562 | * Called by the user via ioctl. | |
2563 | * | |
2564 | * RETURNS: | |
2565 | * Zero on success, errno on failure. | |
2566 | */ | |
2567 | int drm_mode_getfb(struct drm_device *dev, | |
2568 | void *data, struct drm_file *file_priv) | |
2569 | { | |
2570 | struct drm_mode_fb_cmd *r = data; | |
f453ba04 | 2571 | struct drm_framebuffer *fb; |
58c0dca1 | 2572 | int ret; |
f453ba04 | 2573 | |
fb3b06c8 DA |
2574 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2575 | return -EINVAL; | |
2576 | ||
786b99ed | 2577 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
58c0dca1 DV |
2578 | if (!fb) |
2579 | return -EINVAL; | |
f453ba04 DA |
2580 | |
2581 | r->height = fb->height; | |
2582 | r->width = fb->width; | |
2583 | r->depth = fb->depth; | |
2584 | r->bpp = fb->bits_per_pixel; | |
01f2c773 | 2585 | r->pitch = fb->pitches[0]; |
af26ef3b DV |
2586 | if (fb->funcs->create_handle) |
2587 | ret = fb->funcs->create_handle(fb, file_priv, &r->handle); | |
2588 | else | |
2589 | ret = -ENODEV; | |
f453ba04 | 2590 | |
58c0dca1 DV |
2591 | drm_framebuffer_unreference(fb); |
2592 | ||
f453ba04 DA |
2593 | return ret; |
2594 | } | |
2595 | ||
884840aa JB |
2596 | int drm_mode_dirtyfb_ioctl(struct drm_device *dev, |
2597 | void *data, struct drm_file *file_priv) | |
2598 | { | |
2599 | struct drm_clip_rect __user *clips_ptr; | |
2600 | struct drm_clip_rect *clips = NULL; | |
2601 | struct drm_mode_fb_dirty_cmd *r = data; | |
884840aa JB |
2602 | struct drm_framebuffer *fb; |
2603 | unsigned flags; | |
2604 | int num_clips; | |
4a1b0714 | 2605 | int ret; |
884840aa | 2606 | |
fb3b06c8 DA |
2607 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2608 | return -EINVAL; | |
2609 | ||
786b99ed | 2610 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
4ccf097f DV |
2611 | if (!fb) |
2612 | return -EINVAL; | |
884840aa JB |
2613 | |
2614 | num_clips = r->num_clips; | |
81f6c7f8 | 2615 | clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; |
884840aa JB |
2616 | |
2617 | if (!num_clips != !clips_ptr) { | |
2618 | ret = -EINVAL; | |
2619 | goto out_err1; | |
2620 | } | |
2621 | ||
2622 | flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags; | |
2623 | ||
2624 | /* If userspace annotates copy, clips must come in pairs */ | |
2625 | if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) { | |
2626 | ret = -EINVAL; | |
2627 | goto out_err1; | |
2628 | } | |
2629 | ||
2630 | if (num_clips && clips_ptr) { | |
a5cd3351 XW |
2631 | if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) { |
2632 | ret = -EINVAL; | |
2633 | goto out_err1; | |
2634 | } | |
884840aa JB |
2635 | clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL); |
2636 | if (!clips) { | |
2637 | ret = -ENOMEM; | |
2638 | goto out_err1; | |
2639 | } | |
2640 | ||
2641 | ret = copy_from_user(clips, clips_ptr, | |
2642 | num_clips * sizeof(*clips)); | |
e902a358 DC |
2643 | if (ret) { |
2644 | ret = -EFAULT; | |
884840aa | 2645 | goto out_err2; |
e902a358 | 2646 | } |
884840aa JB |
2647 | } |
2648 | ||
2649 | if (fb->funcs->dirty) { | |
4ccf097f | 2650 | drm_modeset_lock_all(dev); |
02b00162 TH |
2651 | ret = fb->funcs->dirty(fb, file_priv, flags, r->color, |
2652 | clips, num_clips); | |
4ccf097f | 2653 | drm_modeset_unlock_all(dev); |
884840aa JB |
2654 | } else { |
2655 | ret = -ENOSYS; | |
884840aa JB |
2656 | } |
2657 | ||
2658 | out_err2: | |
2659 | kfree(clips); | |
2660 | out_err1: | |
4ccf097f DV |
2661 | drm_framebuffer_unreference(fb); |
2662 | ||
884840aa JB |
2663 | return ret; |
2664 | } | |
2665 | ||
2666 | ||
f453ba04 DA |
2667 | /** |
2668 | * drm_fb_release - remove and free the FBs on this file | |
065a50ed | 2669 | * @priv: drm file for the ioctl |
f453ba04 | 2670 | * |
f453ba04 DA |
2671 | * Destroy all the FBs associated with @filp. |
2672 | * | |
2673 | * Called by the user via ioctl. | |
2674 | * | |
2675 | * RETURNS: | |
2676 | * Zero on success, errno on failure. | |
2677 | */ | |
ea39f835 | 2678 | void drm_fb_release(struct drm_file *priv) |
f453ba04 | 2679 | { |
f453ba04 DA |
2680 | struct drm_device *dev = priv->minor->dev; |
2681 | struct drm_framebuffer *fb, *tfb; | |
2682 | ||
4b096ac1 | 2683 | mutex_lock(&priv->fbs_lock); |
f453ba04 | 2684 | list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { |
2b677e8c DV |
2685 | |
2686 | mutex_lock(&dev->mode_config.fb_lock); | |
2687 | /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ | |
2688 | __drm_framebuffer_unregister(dev, fb); | |
2689 | mutex_unlock(&dev->mode_config.fb_lock); | |
2690 | ||
4b096ac1 | 2691 | list_del_init(&fb->filp_head); |
2b677e8c DV |
2692 | |
2693 | /* This will also drop the fpriv->fbs reference. */ | |
7d331595 | 2694 | drm_modeset_lock_all(dev); |
f7eff60e | 2695 | drm_framebuffer_remove(fb); |
7d331595 | 2696 | drm_modeset_unlock_all(dev); |
f453ba04 | 2697 | } |
4b096ac1 | 2698 | mutex_unlock(&priv->fbs_lock); |
f453ba04 DA |
2699 | } |
2700 | ||
2701 | /** | |
2702 | * drm_mode_attachmode - add a mode to the user mode list | |
2703 | * @dev: DRM device | |
2704 | * @connector: connector to add the mode to | |
2705 | * @mode: mode to add | |
2706 | * | |
2707 | * Add @mode to @connector's user mode list. | |
2708 | */ | |
1dd6c8bd VS |
2709 | static void drm_mode_attachmode(struct drm_device *dev, |
2710 | struct drm_connector *connector, | |
2711 | struct drm_display_mode *mode) | |
f453ba04 | 2712 | { |
f453ba04 | 2713 | list_add_tail(&mode->head, &connector->user_modes); |
f453ba04 DA |
2714 | } |
2715 | ||
2716 | int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc, | |
ac235daf | 2717 | const struct drm_display_mode *mode) |
f453ba04 DA |
2718 | { |
2719 | struct drm_connector *connector; | |
ac235daf VS |
2720 | int ret = 0; |
2721 | struct drm_display_mode *dup_mode, *next; | |
2722 | LIST_HEAD(list); | |
2723 | ||
f453ba04 DA |
2724 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
2725 | if (!connector->encoder) | |
ac235daf | 2726 | continue; |
f453ba04 | 2727 | if (connector->encoder->crtc == crtc) { |
ac235daf VS |
2728 | dup_mode = drm_mode_duplicate(dev, mode); |
2729 | if (!dup_mode) { | |
2730 | ret = -ENOMEM; | |
2731 | goto out; | |
2732 | } | |
2733 | list_add_tail(&dup_mode->head, &list); | |
f453ba04 DA |
2734 | } |
2735 | } | |
ac235daf VS |
2736 | |
2737 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
2738 | if (!connector->encoder) | |
2739 | continue; | |
2740 | if (connector->encoder->crtc == crtc) | |
2741 | list_move_tail(list.next, &connector->user_modes); | |
2742 | } | |
2743 | ||
2744 | WARN_ON(!list_empty(&list)); | |
2745 | ||
2746 | out: | |
2747 | list_for_each_entry_safe(dup_mode, next, &list, head) | |
2748 | drm_mode_destroy(dev, dup_mode); | |
2749 | ||
2750 | return ret; | |
f453ba04 DA |
2751 | } |
2752 | EXPORT_SYMBOL(drm_mode_attachmode_crtc); | |
2753 | ||
2754 | static int drm_mode_detachmode(struct drm_device *dev, | |
2755 | struct drm_connector *connector, | |
2756 | struct drm_display_mode *mode) | |
2757 | { | |
2758 | int found = 0; | |
2759 | int ret = 0; | |
2760 | struct drm_display_mode *match_mode, *t; | |
2761 | ||
2762 | list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) { | |
2763 | if (drm_mode_equal(match_mode, mode)) { | |
2764 | list_del(&match_mode->head); | |
2765 | drm_mode_destroy(dev, match_mode); | |
2766 | found = 1; | |
2767 | break; | |
2768 | } | |
2769 | } | |
2770 | ||
2771 | if (!found) | |
2772 | ret = -EINVAL; | |
2773 | ||
2774 | return ret; | |
2775 | } | |
2776 | ||
2777 | int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode) | |
2778 | { | |
2779 | struct drm_connector *connector; | |
2780 | ||
2781 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
2782 | drm_mode_detachmode(dev, connector, mode); | |
2783 | } | |
2784 | return 0; | |
2785 | } | |
2786 | EXPORT_SYMBOL(drm_mode_detachmode_crtc); | |
2787 | ||
2788 | /** | |
2789 | * drm_fb_attachmode - Attach a user mode to an connector | |
065a50ed DV |
2790 | * @dev: drm device for the ioctl |
2791 | * @data: data pointer for the ioctl | |
2792 | * @file_priv: drm file for the ioctl call | |
f453ba04 DA |
2793 | * |
2794 | * This attaches a user specified mode to an connector. | |
2795 | * Called by the user via ioctl. | |
2796 | * | |
2797 | * RETURNS: | |
2798 | * Zero on success, errno on failure. | |
2799 | */ | |
2800 | int drm_mode_attachmode_ioctl(struct drm_device *dev, | |
2801 | void *data, struct drm_file *file_priv) | |
2802 | { | |
2803 | struct drm_mode_mode_cmd *mode_cmd = data; | |
2804 | struct drm_connector *connector; | |
2805 | struct drm_display_mode *mode; | |
2806 | struct drm_mode_object *obj; | |
2807 | struct drm_mode_modeinfo *umode = &mode_cmd->mode; | |
4a1b0714 | 2808 | int ret; |
f453ba04 | 2809 | |
fb3b06c8 DA |
2810 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2811 | return -EINVAL; | |
2812 | ||
84849903 | 2813 | drm_modeset_lock_all(dev); |
f453ba04 DA |
2814 | |
2815 | obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR); | |
2816 | if (!obj) { | |
2817 | ret = -EINVAL; | |
2818 | goto out; | |
2819 | } | |
2820 | connector = obj_to_connector(obj); | |
2821 | ||
2822 | mode = drm_mode_create(dev); | |
2823 | if (!mode) { | |
2824 | ret = -ENOMEM; | |
2825 | goto out; | |
2826 | } | |
2827 | ||
90367bf6 VS |
2828 | ret = drm_crtc_convert_umode(mode, umode); |
2829 | if (ret) { | |
2830 | DRM_DEBUG_KMS("Invalid mode\n"); | |
2831 | drm_mode_destroy(dev, mode); | |
2832 | goto out; | |
2833 | } | |
f453ba04 | 2834 | |
1dd6c8bd | 2835 | drm_mode_attachmode(dev, connector, mode); |
f453ba04 | 2836 | out: |
84849903 | 2837 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
2838 | return ret; |
2839 | } | |
2840 | ||
2841 | ||
2842 | /** | |
2843 | * drm_fb_detachmode - Detach a user specified mode from an connector | |
065a50ed DV |
2844 | * @dev: drm device for the ioctl |
2845 | * @data: data pointer for the ioctl | |
2846 | * @file_priv: drm file for the ioctl call | |
f453ba04 DA |
2847 | * |
2848 | * Called by the user via ioctl. | |
2849 | * | |
2850 | * RETURNS: | |
2851 | * Zero on success, errno on failure. | |
2852 | */ | |
2853 | int drm_mode_detachmode_ioctl(struct drm_device *dev, | |
2854 | void *data, struct drm_file *file_priv) | |
2855 | { | |
2856 | struct drm_mode_object *obj; | |
2857 | struct drm_mode_mode_cmd *mode_cmd = data; | |
2858 | struct drm_connector *connector; | |
2859 | struct drm_display_mode mode; | |
2860 | struct drm_mode_modeinfo *umode = &mode_cmd->mode; | |
4a1b0714 | 2861 | int ret; |
f453ba04 | 2862 | |
fb3b06c8 DA |
2863 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2864 | return -EINVAL; | |
2865 | ||
84849903 | 2866 | drm_modeset_lock_all(dev); |
f453ba04 DA |
2867 | |
2868 | obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR); | |
2869 | if (!obj) { | |
2870 | ret = -EINVAL; | |
2871 | goto out; | |
2872 | } | |
2873 | connector = obj_to_connector(obj); | |
2874 | ||
90367bf6 VS |
2875 | ret = drm_crtc_convert_umode(&mode, umode); |
2876 | if (ret) { | |
2877 | DRM_DEBUG_KMS("Invalid mode\n"); | |
2878 | goto out; | |
2879 | } | |
2880 | ||
f453ba04 DA |
2881 | ret = drm_mode_detachmode(dev, connector, &mode); |
2882 | out: | |
84849903 | 2883 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
2884 | return ret; |
2885 | } | |
2886 | ||
2887 | struct drm_property *drm_property_create(struct drm_device *dev, int flags, | |
2888 | const char *name, int num_values) | |
2889 | { | |
2890 | struct drm_property *property = NULL; | |
6bfc56aa | 2891 | int ret; |
f453ba04 DA |
2892 | |
2893 | property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); | |
2894 | if (!property) | |
2895 | return NULL; | |
2896 | ||
2897 | if (num_values) { | |
2898 | property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL); | |
2899 | if (!property->values) | |
2900 | goto fail; | |
2901 | } | |
2902 | ||
6bfc56aa VS |
2903 | ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); |
2904 | if (ret) | |
2905 | goto fail; | |
2906 | ||
f453ba04 DA |
2907 | property->flags = flags; |
2908 | property->num_values = num_values; | |
2909 | INIT_LIST_HEAD(&property->enum_blob_list); | |
2910 | ||
471dd2ef | 2911 | if (name) { |
f453ba04 | 2912 | strncpy(property->name, name, DRM_PROP_NAME_LEN); |
471dd2ef VL |
2913 | property->name[DRM_PROP_NAME_LEN-1] = '\0'; |
2914 | } | |
f453ba04 DA |
2915 | |
2916 | list_add_tail(&property->head, &dev->mode_config.property_list); | |
2917 | return property; | |
2918 | fail: | |
6bfc56aa | 2919 | kfree(property->values); |
f453ba04 DA |
2920 | kfree(property); |
2921 | return NULL; | |
2922 | } | |
2923 | EXPORT_SYMBOL(drm_property_create); | |
2924 | ||
4a67d391 SH |
2925 | struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, |
2926 | const char *name, | |
2927 | const struct drm_prop_enum_list *props, | |
2928 | int num_values) | |
2929 | { | |
2930 | struct drm_property *property; | |
2931 | int i, ret; | |
2932 | ||
2933 | flags |= DRM_MODE_PROP_ENUM; | |
2934 | ||
2935 | property = drm_property_create(dev, flags, name, num_values); | |
2936 | if (!property) | |
2937 | return NULL; | |
2938 | ||
2939 | for (i = 0; i < num_values; i++) { | |
2940 | ret = drm_property_add_enum(property, i, | |
2941 | props[i].type, | |
2942 | props[i].name); | |
2943 | if (ret) { | |
2944 | drm_property_destroy(dev, property); | |
2945 | return NULL; | |
2946 | } | |
2947 | } | |
2948 | ||
2949 | return property; | |
2950 | } | |
2951 | EXPORT_SYMBOL(drm_property_create_enum); | |
2952 | ||
49e27545 RC |
2953 | struct drm_property *drm_property_create_bitmask(struct drm_device *dev, |
2954 | int flags, const char *name, | |
2955 | const struct drm_prop_enum_list *props, | |
2956 | int num_values) | |
2957 | { | |
2958 | struct drm_property *property; | |
2959 | int i, ret; | |
2960 | ||
2961 | flags |= DRM_MODE_PROP_BITMASK; | |
2962 | ||
2963 | property = drm_property_create(dev, flags, name, num_values); | |
2964 | if (!property) | |
2965 | return NULL; | |
2966 | ||
2967 | for (i = 0; i < num_values; i++) { | |
2968 | ret = drm_property_add_enum(property, i, | |
2969 | props[i].type, | |
2970 | props[i].name); | |
2971 | if (ret) { | |
2972 | drm_property_destroy(dev, property); | |
2973 | return NULL; | |
2974 | } | |
2975 | } | |
2976 | ||
2977 | return property; | |
2978 | } | |
2979 | EXPORT_SYMBOL(drm_property_create_bitmask); | |
2980 | ||
d9bc3c02 SH |
2981 | struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, |
2982 | const char *name, | |
2983 | uint64_t min, uint64_t max) | |
2984 | { | |
2985 | struct drm_property *property; | |
2986 | ||
2987 | flags |= DRM_MODE_PROP_RANGE; | |
2988 | ||
2989 | property = drm_property_create(dev, flags, name, 2); | |
2990 | if (!property) | |
2991 | return NULL; | |
2992 | ||
2993 | property->values[0] = min; | |
2994 | property->values[1] = max; | |
2995 | ||
2996 | return property; | |
2997 | } | |
2998 | EXPORT_SYMBOL(drm_property_create_range); | |
2999 | ||
f453ba04 DA |
3000 | int drm_property_add_enum(struct drm_property *property, int index, |
3001 | uint64_t value, const char *name) | |
3002 | { | |
3003 | struct drm_property_enum *prop_enum; | |
3004 | ||
49e27545 RC |
3005 | if (!(property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK))) |
3006 | return -EINVAL; | |
3007 | ||
3008 | /* | |
3009 | * Bitmask enum properties have the additional constraint of values | |
3010 | * from 0 to 63 | |
3011 | */ | |
3012 | if ((property->flags & DRM_MODE_PROP_BITMASK) && (value > 63)) | |
f453ba04 DA |
3013 | return -EINVAL; |
3014 | ||
3015 | if (!list_empty(&property->enum_blob_list)) { | |
3016 | list_for_each_entry(prop_enum, &property->enum_blob_list, head) { | |
3017 | if (prop_enum->value == value) { | |
3018 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
3019 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
3020 | return 0; | |
3021 | } | |
3022 | } | |
3023 | } | |
3024 | ||
3025 | prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); | |
3026 | if (!prop_enum) | |
3027 | return -ENOMEM; | |
3028 | ||
3029 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
3030 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
3031 | prop_enum->value = value; | |
3032 | ||
3033 | property->values[index] = value; | |
3034 | list_add_tail(&prop_enum->head, &property->enum_blob_list); | |
3035 | return 0; | |
3036 | } | |
3037 | EXPORT_SYMBOL(drm_property_add_enum); | |
3038 | ||
3039 | void drm_property_destroy(struct drm_device *dev, struct drm_property *property) | |
3040 | { | |
3041 | struct drm_property_enum *prop_enum, *pt; | |
3042 | ||
3043 | list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) { | |
3044 | list_del(&prop_enum->head); | |
3045 | kfree(prop_enum); | |
3046 | } | |
3047 | ||
3048 | if (property->num_values) | |
3049 | kfree(property->values); | |
3050 | drm_mode_object_put(dev, &property->base); | |
3051 | list_del(&property->head); | |
3052 | kfree(property); | |
3053 | } | |
3054 | EXPORT_SYMBOL(drm_property_destroy); | |
3055 | ||
c543188a PZ |
3056 | void drm_object_attach_property(struct drm_mode_object *obj, |
3057 | struct drm_property *property, | |
3058 | uint64_t init_val) | |
3059 | { | |
7f88a9be | 3060 | int count = obj->properties->count; |
c543188a | 3061 | |
7f88a9be PZ |
3062 | if (count == DRM_OBJECT_MAX_PROPERTY) { |
3063 | WARN(1, "Failed to attach object property (type: 0x%x). Please " | |
3064 | "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time " | |
3065 | "you see this message on the same object type.\n", | |
3066 | obj->type); | |
3067 | return; | |
c543188a PZ |
3068 | } |
3069 | ||
7f88a9be PZ |
3070 | obj->properties->ids[count] = property->base.id; |
3071 | obj->properties->values[count] = init_val; | |
3072 | obj->properties->count++; | |
c543188a PZ |
3073 | } |
3074 | EXPORT_SYMBOL(drm_object_attach_property); | |
3075 | ||
3076 | int drm_object_property_set_value(struct drm_mode_object *obj, | |
3077 | struct drm_property *property, uint64_t val) | |
3078 | { | |
3079 | int i; | |
3080 | ||
7f88a9be | 3081 | for (i = 0; i < obj->properties->count; i++) { |
c543188a PZ |
3082 | if (obj->properties->ids[i] == property->base.id) { |
3083 | obj->properties->values[i] = val; | |
3084 | return 0; | |
3085 | } | |
3086 | } | |
3087 | ||
3088 | return -EINVAL; | |
3089 | } | |
3090 | EXPORT_SYMBOL(drm_object_property_set_value); | |
3091 | ||
3092 | int drm_object_property_get_value(struct drm_mode_object *obj, | |
3093 | struct drm_property *property, uint64_t *val) | |
3094 | { | |
3095 | int i; | |
3096 | ||
7f88a9be | 3097 | for (i = 0; i < obj->properties->count; i++) { |
c543188a PZ |
3098 | if (obj->properties->ids[i] == property->base.id) { |
3099 | *val = obj->properties->values[i]; | |
3100 | return 0; | |
3101 | } | |
3102 | } | |
3103 | ||
3104 | return -EINVAL; | |
3105 | } | |
3106 | EXPORT_SYMBOL(drm_object_property_get_value); | |
3107 | ||
f453ba04 DA |
3108 | int drm_mode_getproperty_ioctl(struct drm_device *dev, |
3109 | void *data, struct drm_file *file_priv) | |
3110 | { | |
3111 | struct drm_mode_object *obj; | |
3112 | struct drm_mode_get_property *out_resp = data; | |
3113 | struct drm_property *property; | |
3114 | int enum_count = 0; | |
3115 | int blob_count = 0; | |
3116 | int value_count = 0; | |
3117 | int ret = 0, i; | |
3118 | int copied; | |
3119 | struct drm_property_enum *prop_enum; | |
3120 | struct drm_mode_property_enum __user *enum_ptr; | |
3121 | struct drm_property_blob *prop_blob; | |
81f6c7f8 | 3122 | uint32_t __user *blob_id_ptr; |
f453ba04 DA |
3123 | uint64_t __user *values_ptr; |
3124 | uint32_t __user *blob_length_ptr; | |
3125 | ||
fb3b06c8 DA |
3126 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3127 | return -EINVAL; | |
3128 | ||
84849903 | 3129 | drm_modeset_lock_all(dev); |
f453ba04 DA |
3130 | obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY); |
3131 | if (!obj) { | |
3132 | ret = -EINVAL; | |
3133 | goto done; | |
3134 | } | |
3135 | property = obj_to_property(obj); | |
3136 | ||
49e27545 | 3137 | if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) { |
f453ba04 DA |
3138 | list_for_each_entry(prop_enum, &property->enum_blob_list, head) |
3139 | enum_count++; | |
3140 | } else if (property->flags & DRM_MODE_PROP_BLOB) { | |
3141 | list_for_each_entry(prop_blob, &property->enum_blob_list, head) | |
3142 | blob_count++; | |
3143 | } | |
3144 | ||
3145 | value_count = property->num_values; | |
3146 | ||
3147 | strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); | |
3148 | out_resp->name[DRM_PROP_NAME_LEN-1] = 0; | |
3149 | out_resp->flags = property->flags; | |
3150 | ||
3151 | if ((out_resp->count_values >= value_count) && value_count) { | |
81f6c7f8 | 3152 | values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; |
f453ba04 DA |
3153 | for (i = 0; i < value_count; i++) { |
3154 | if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { | |
3155 | ret = -EFAULT; | |
3156 | goto done; | |
3157 | } | |
3158 | } | |
3159 | } | |
3160 | out_resp->count_values = value_count; | |
3161 | ||
49e27545 | 3162 | if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) { |
f453ba04 DA |
3163 | if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { |
3164 | copied = 0; | |
81f6c7f8 | 3165 | enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; |
f453ba04 DA |
3166 | list_for_each_entry(prop_enum, &property->enum_blob_list, head) { |
3167 | ||
3168 | if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { | |
3169 | ret = -EFAULT; | |
3170 | goto done; | |
3171 | } | |
3172 | ||
3173 | if (copy_to_user(&enum_ptr[copied].name, | |
3174 | &prop_enum->name, DRM_PROP_NAME_LEN)) { | |
3175 | ret = -EFAULT; | |
3176 | goto done; | |
3177 | } | |
3178 | copied++; | |
3179 | } | |
3180 | } | |
3181 | out_resp->count_enum_blobs = enum_count; | |
3182 | } | |
3183 | ||
3184 | if (property->flags & DRM_MODE_PROP_BLOB) { | |
3185 | if ((out_resp->count_enum_blobs >= blob_count) && blob_count) { | |
3186 | copied = 0; | |
81f6c7f8 VS |
3187 | blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr; |
3188 | blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr; | |
f453ba04 DA |
3189 | |
3190 | list_for_each_entry(prop_blob, &property->enum_blob_list, head) { | |
3191 | if (put_user(prop_blob->base.id, blob_id_ptr + copied)) { | |
3192 | ret = -EFAULT; | |
3193 | goto done; | |
3194 | } | |
3195 | ||
3196 | if (put_user(prop_blob->length, blob_length_ptr + copied)) { | |
3197 | ret = -EFAULT; | |
3198 | goto done; | |
3199 | } | |
3200 | ||
3201 | copied++; | |
3202 | } | |
3203 | } | |
3204 | out_resp->count_enum_blobs = blob_count; | |
3205 | } | |
3206 | done: | |
84849903 | 3207 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
3208 | return ret; |
3209 | } | |
3210 | ||
3211 | static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length, | |
3212 | void *data) | |
3213 | { | |
3214 | struct drm_property_blob *blob; | |
6bfc56aa | 3215 | int ret; |
f453ba04 DA |
3216 | |
3217 | if (!length || !data) | |
3218 | return NULL; | |
3219 | ||
3220 | blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); | |
3221 | if (!blob) | |
3222 | return NULL; | |
3223 | ||
6bfc56aa VS |
3224 | ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB); |
3225 | if (ret) { | |
3226 | kfree(blob); | |
3227 | return NULL; | |
3228 | } | |
3229 | ||
f453ba04 DA |
3230 | blob->length = length; |
3231 | ||
3232 | memcpy(blob->data, data, length); | |
3233 | ||
f453ba04 DA |
3234 | list_add_tail(&blob->head, &dev->mode_config.property_blob_list); |
3235 | return blob; | |
3236 | } | |
3237 | ||
3238 | static void drm_property_destroy_blob(struct drm_device *dev, | |
3239 | struct drm_property_blob *blob) | |
3240 | { | |
3241 | drm_mode_object_put(dev, &blob->base); | |
3242 | list_del(&blob->head); | |
3243 | kfree(blob); | |
3244 | } | |
3245 | ||
3246 | int drm_mode_getblob_ioctl(struct drm_device *dev, | |
3247 | void *data, struct drm_file *file_priv) | |
3248 | { | |
3249 | struct drm_mode_object *obj; | |
3250 | struct drm_mode_get_blob *out_resp = data; | |
3251 | struct drm_property_blob *blob; | |
3252 | int ret = 0; | |
81f6c7f8 | 3253 | void __user *blob_ptr; |
f453ba04 | 3254 | |
fb3b06c8 DA |
3255 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3256 | return -EINVAL; | |
3257 | ||
84849903 | 3258 | drm_modeset_lock_all(dev); |
f453ba04 DA |
3259 | obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB); |
3260 | if (!obj) { | |
3261 | ret = -EINVAL; | |
3262 | goto done; | |
3263 | } | |
3264 | blob = obj_to_blob(obj); | |
3265 | ||
3266 | if (out_resp->length == blob->length) { | |
81f6c7f8 | 3267 | blob_ptr = (void __user *)(unsigned long)out_resp->data; |
f453ba04 DA |
3268 | if (copy_to_user(blob_ptr, blob->data, blob->length)){ |
3269 | ret = -EFAULT; | |
3270 | goto done; | |
3271 | } | |
3272 | } | |
3273 | out_resp->length = blob->length; | |
3274 | ||
3275 | done: | |
84849903 | 3276 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
3277 | return ret; |
3278 | } | |
3279 | ||
3280 | int drm_mode_connector_update_edid_property(struct drm_connector *connector, | |
3281 | struct edid *edid) | |
3282 | { | |
3283 | struct drm_device *dev = connector->dev; | |
4a1b0714 | 3284 | int ret, size; |
f453ba04 DA |
3285 | |
3286 | if (connector->edid_blob_ptr) | |
3287 | drm_property_destroy_blob(dev, connector->edid_blob_ptr); | |
3288 | ||
3289 | /* Delete edid, when there is none. */ | |
3290 | if (!edid) { | |
3291 | connector->edid_blob_ptr = NULL; | |
58495563 | 3292 | ret = drm_object_property_set_value(&connector->base, dev->mode_config.edid_property, 0); |
f453ba04 DA |
3293 | return ret; |
3294 | } | |
3295 | ||
7466f4cc AJ |
3296 | size = EDID_LENGTH * (1 + edid->extensions); |
3297 | connector->edid_blob_ptr = drm_property_create_blob(connector->dev, | |
3298 | size, edid); | |
e655d122 SK |
3299 | if (!connector->edid_blob_ptr) |
3300 | return -EINVAL; | |
f453ba04 | 3301 | |
58495563 | 3302 | ret = drm_object_property_set_value(&connector->base, |
f453ba04 DA |
3303 | dev->mode_config.edid_property, |
3304 | connector->edid_blob_ptr->base.id); | |
3305 | ||
3306 | return ret; | |
3307 | } | |
3308 | EXPORT_SYMBOL(drm_mode_connector_update_edid_property); | |
3309 | ||
26a34815 | 3310 | static bool drm_property_change_is_valid(struct drm_property *property, |
592c20ee | 3311 | uint64_t value) |
26a34815 PZ |
3312 | { |
3313 | if (property->flags & DRM_MODE_PROP_IMMUTABLE) | |
3314 | return false; | |
3315 | if (property->flags & DRM_MODE_PROP_RANGE) { | |
3316 | if (value < property->values[0] || value > property->values[1]) | |
3317 | return false; | |
3318 | return true; | |
49e27545 RC |
3319 | } else if (property->flags & DRM_MODE_PROP_BITMASK) { |
3320 | int i; | |
592c20ee | 3321 | uint64_t valid_mask = 0; |
49e27545 RC |
3322 | for (i = 0; i < property->num_values; i++) |
3323 | valid_mask |= (1ULL << property->values[i]); | |
3324 | return !(value & ~valid_mask); | |
c4a56750 VS |
3325 | } else if (property->flags & DRM_MODE_PROP_BLOB) { |
3326 | /* Only the driver knows */ | |
3327 | return true; | |
26a34815 PZ |
3328 | } else { |
3329 | int i; | |
3330 | for (i = 0; i < property->num_values; i++) | |
3331 | if (property->values[i] == value) | |
3332 | return true; | |
3333 | return false; | |
3334 | } | |
3335 | } | |
3336 | ||
f453ba04 DA |
3337 | int drm_mode_connector_property_set_ioctl(struct drm_device *dev, |
3338 | void *data, struct drm_file *file_priv) | |
3339 | { | |
0057d8dd PZ |
3340 | struct drm_mode_connector_set_property *conn_set_prop = data; |
3341 | struct drm_mode_obj_set_property obj_set_prop = { | |
3342 | .value = conn_set_prop->value, | |
3343 | .prop_id = conn_set_prop->prop_id, | |
3344 | .obj_id = conn_set_prop->connector_id, | |
3345 | .obj_type = DRM_MODE_OBJECT_CONNECTOR | |
3346 | }; | |
fb3b06c8 | 3347 | |
0057d8dd PZ |
3348 | /* It does all the locking and checking we need */ |
3349 | return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv); | |
f453ba04 DA |
3350 | } |
3351 | ||
c543188a PZ |
3352 | static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, |
3353 | struct drm_property *property, | |
3354 | uint64_t value) | |
3355 | { | |
3356 | int ret = -EINVAL; | |
3357 | struct drm_connector *connector = obj_to_connector(obj); | |
3358 | ||
3359 | /* Do DPMS ourselves */ | |
3360 | if (property == connector->dev->mode_config.dpms_property) { | |
3361 | if (connector->funcs->dpms) | |
3362 | (*connector->funcs->dpms)(connector, (int)value); | |
3363 | ret = 0; | |
3364 | } else if (connector->funcs->set_property) | |
3365 | ret = connector->funcs->set_property(connector, property, value); | |
3366 | ||
3367 | /* store the property value if successful */ | |
3368 | if (!ret) | |
58495563 | 3369 | drm_object_property_set_value(&connector->base, property, value); |
c543188a PZ |
3370 | return ret; |
3371 | } | |
3372 | ||
bffd9de0 PZ |
3373 | static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, |
3374 | struct drm_property *property, | |
3375 | uint64_t value) | |
3376 | { | |
3377 | int ret = -EINVAL; | |
3378 | struct drm_crtc *crtc = obj_to_crtc(obj); | |
3379 | ||
3380 | if (crtc->funcs->set_property) | |
3381 | ret = crtc->funcs->set_property(crtc, property, value); | |
3382 | if (!ret) | |
3383 | drm_object_property_set_value(obj, property, value); | |
3384 | ||
3385 | return ret; | |
3386 | } | |
3387 | ||
4d93914a RC |
3388 | static int drm_mode_plane_set_obj_prop(struct drm_mode_object *obj, |
3389 | struct drm_property *property, | |
3390 | uint64_t value) | |
3391 | { | |
3392 | int ret = -EINVAL; | |
3393 | struct drm_plane *plane = obj_to_plane(obj); | |
3394 | ||
3395 | if (plane->funcs->set_property) | |
3396 | ret = plane->funcs->set_property(plane, property, value); | |
3397 | if (!ret) | |
3398 | drm_object_property_set_value(obj, property, value); | |
3399 | ||
3400 | return ret; | |
3401 | } | |
3402 | ||
c543188a PZ |
3403 | int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, |
3404 | struct drm_file *file_priv) | |
3405 | { | |
3406 | struct drm_mode_obj_get_properties *arg = data; | |
3407 | struct drm_mode_object *obj; | |
3408 | int ret = 0; | |
3409 | int i; | |
3410 | int copied = 0; | |
3411 | int props_count = 0; | |
3412 | uint32_t __user *props_ptr; | |
3413 | uint64_t __user *prop_values_ptr; | |
3414 | ||
3415 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
3416 | return -EINVAL; | |
3417 | ||
84849903 | 3418 | drm_modeset_lock_all(dev); |
c543188a PZ |
3419 | |
3420 | obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); | |
3421 | if (!obj) { | |
3422 | ret = -EINVAL; | |
3423 | goto out; | |
3424 | } | |
3425 | if (!obj->properties) { | |
3426 | ret = -EINVAL; | |
3427 | goto out; | |
3428 | } | |
3429 | ||
7f88a9be | 3430 | props_count = obj->properties->count; |
c543188a PZ |
3431 | |
3432 | /* This ioctl is called twice, once to determine how much space is | |
3433 | * needed, and the 2nd time to fill it. */ | |
3434 | if ((arg->count_props >= props_count) && props_count) { | |
3435 | copied = 0; | |
3436 | props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr); | |
3437 | prop_values_ptr = (uint64_t __user *)(unsigned long) | |
3438 | (arg->prop_values_ptr); | |
3439 | for (i = 0; i < props_count; i++) { | |
3440 | if (put_user(obj->properties->ids[i], | |
3441 | props_ptr + copied)) { | |
3442 | ret = -EFAULT; | |
3443 | goto out; | |
3444 | } | |
3445 | if (put_user(obj->properties->values[i], | |
3446 | prop_values_ptr + copied)) { | |
3447 | ret = -EFAULT; | |
3448 | goto out; | |
3449 | } | |
3450 | copied++; | |
3451 | } | |
3452 | } | |
3453 | arg->count_props = props_count; | |
3454 | out: | |
84849903 | 3455 | drm_modeset_unlock_all(dev); |
c543188a PZ |
3456 | return ret; |
3457 | } | |
3458 | ||
3459 | int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, | |
3460 | struct drm_file *file_priv) | |
3461 | { | |
3462 | struct drm_mode_obj_set_property *arg = data; | |
3463 | struct drm_mode_object *arg_obj; | |
3464 | struct drm_mode_object *prop_obj; | |
3465 | struct drm_property *property; | |
3466 | int ret = -EINVAL; | |
3467 | int i; | |
3468 | ||
3469 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
3470 | return -EINVAL; | |
3471 | ||
84849903 | 3472 | drm_modeset_lock_all(dev); |
c543188a PZ |
3473 | |
3474 | arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); | |
3475 | if (!arg_obj) | |
3476 | goto out; | |
3477 | if (!arg_obj->properties) | |
3478 | goto out; | |
3479 | ||
7f88a9be | 3480 | for (i = 0; i < arg_obj->properties->count; i++) |
c543188a PZ |
3481 | if (arg_obj->properties->ids[i] == arg->prop_id) |
3482 | break; | |
3483 | ||
7f88a9be | 3484 | if (i == arg_obj->properties->count) |
c543188a PZ |
3485 | goto out; |
3486 | ||
3487 | prop_obj = drm_mode_object_find(dev, arg->prop_id, | |
3488 | DRM_MODE_OBJECT_PROPERTY); | |
3489 | if (!prop_obj) | |
3490 | goto out; | |
3491 | property = obj_to_property(prop_obj); | |
3492 | ||
3493 | if (!drm_property_change_is_valid(property, arg->value)) | |
3494 | goto out; | |
3495 | ||
3496 | switch (arg_obj->type) { | |
3497 | case DRM_MODE_OBJECT_CONNECTOR: | |
3498 | ret = drm_mode_connector_set_obj_prop(arg_obj, property, | |
3499 | arg->value); | |
3500 | break; | |
bffd9de0 PZ |
3501 | case DRM_MODE_OBJECT_CRTC: |
3502 | ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value); | |
3503 | break; | |
4d93914a RC |
3504 | case DRM_MODE_OBJECT_PLANE: |
3505 | ret = drm_mode_plane_set_obj_prop(arg_obj, property, arg->value); | |
3506 | break; | |
c543188a PZ |
3507 | } |
3508 | ||
3509 | out: | |
84849903 | 3510 | drm_modeset_unlock_all(dev); |
c543188a PZ |
3511 | return ret; |
3512 | } | |
3513 | ||
f453ba04 DA |
3514 | int drm_mode_connector_attach_encoder(struct drm_connector *connector, |
3515 | struct drm_encoder *encoder) | |
3516 | { | |
3517 | int i; | |
3518 | ||
3519 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { | |
3520 | if (connector->encoder_ids[i] == 0) { | |
3521 | connector->encoder_ids[i] = encoder->base.id; | |
3522 | return 0; | |
3523 | } | |
3524 | } | |
3525 | return -ENOMEM; | |
3526 | } | |
3527 | EXPORT_SYMBOL(drm_mode_connector_attach_encoder); | |
3528 | ||
3529 | void drm_mode_connector_detach_encoder(struct drm_connector *connector, | |
3530 | struct drm_encoder *encoder) | |
3531 | { | |
3532 | int i; | |
3533 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { | |
3534 | if (connector->encoder_ids[i] == encoder->base.id) { | |
3535 | connector->encoder_ids[i] = 0; | |
3536 | if (connector->encoder == encoder) | |
3537 | connector->encoder = NULL; | |
3538 | break; | |
3539 | } | |
3540 | } | |
3541 | } | |
3542 | EXPORT_SYMBOL(drm_mode_connector_detach_encoder); | |
3543 | ||
4cae5b84 | 3544 | int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, |
f453ba04 DA |
3545 | int gamma_size) |
3546 | { | |
3547 | crtc->gamma_size = gamma_size; | |
3548 | ||
3549 | crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL); | |
3550 | if (!crtc->gamma_store) { | |
3551 | crtc->gamma_size = 0; | |
4cae5b84 | 3552 | return -ENOMEM; |
f453ba04 DA |
3553 | } |
3554 | ||
4cae5b84 | 3555 | return 0; |
f453ba04 DA |
3556 | } |
3557 | EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); | |
3558 | ||
3559 | int drm_mode_gamma_set_ioctl(struct drm_device *dev, | |
3560 | void *data, struct drm_file *file_priv) | |
3561 | { | |
3562 | struct drm_mode_crtc_lut *crtc_lut = data; | |
3563 | struct drm_mode_object *obj; | |
3564 | struct drm_crtc *crtc; | |
3565 | void *r_base, *g_base, *b_base; | |
3566 | int size; | |
3567 | int ret = 0; | |
3568 | ||
fb3b06c8 DA |
3569 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3570 | return -EINVAL; | |
3571 | ||
84849903 | 3572 | drm_modeset_lock_all(dev); |
f453ba04 DA |
3573 | obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC); |
3574 | if (!obj) { | |
3575 | ret = -EINVAL; | |
3576 | goto out; | |
3577 | } | |
3578 | crtc = obj_to_crtc(obj); | |
3579 | ||
ebe0f244 LP |
3580 | if (crtc->funcs->gamma_set == NULL) { |
3581 | ret = -ENOSYS; | |
3582 | goto out; | |
3583 | } | |
3584 | ||
f453ba04 DA |
3585 | /* memcpy into gamma store */ |
3586 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
3587 | ret = -EINVAL; | |
3588 | goto out; | |
3589 | } | |
3590 | ||
3591 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
3592 | r_base = crtc->gamma_store; | |
3593 | if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { | |
3594 | ret = -EFAULT; | |
3595 | goto out; | |
3596 | } | |
3597 | ||
3598 | g_base = r_base + size; | |
3599 | if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { | |
3600 | ret = -EFAULT; | |
3601 | goto out; | |
3602 | } | |
3603 | ||
3604 | b_base = g_base + size; | |
3605 | if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { | |
3606 | ret = -EFAULT; | |
3607 | goto out; | |
3608 | } | |
3609 | ||
7203425a | 3610 | crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); |
f453ba04 DA |
3611 | |
3612 | out: | |
84849903 | 3613 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
3614 | return ret; |
3615 | ||
3616 | } | |
3617 | ||
3618 | int drm_mode_gamma_get_ioctl(struct drm_device *dev, | |
3619 | void *data, struct drm_file *file_priv) | |
3620 | { | |
3621 | struct drm_mode_crtc_lut *crtc_lut = data; | |
3622 | struct drm_mode_object *obj; | |
3623 | struct drm_crtc *crtc; | |
3624 | void *r_base, *g_base, *b_base; | |
3625 | int size; | |
3626 | int ret = 0; | |
3627 | ||
fb3b06c8 DA |
3628 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3629 | return -EINVAL; | |
3630 | ||
84849903 | 3631 | drm_modeset_lock_all(dev); |
f453ba04 DA |
3632 | obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC); |
3633 | if (!obj) { | |
3634 | ret = -EINVAL; | |
3635 | goto out; | |
3636 | } | |
3637 | crtc = obj_to_crtc(obj); | |
3638 | ||
3639 | /* memcpy into gamma store */ | |
3640 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
3641 | ret = -EINVAL; | |
3642 | goto out; | |
3643 | } | |
3644 | ||
3645 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
3646 | r_base = crtc->gamma_store; | |
3647 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { | |
3648 | ret = -EFAULT; | |
3649 | goto out; | |
3650 | } | |
3651 | ||
3652 | g_base = r_base + size; | |
3653 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { | |
3654 | ret = -EFAULT; | |
3655 | goto out; | |
3656 | } | |
3657 | ||
3658 | b_base = g_base + size; | |
3659 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { | |
3660 | ret = -EFAULT; | |
3661 | goto out; | |
3662 | } | |
3663 | out: | |
84849903 | 3664 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
3665 | return ret; |
3666 | } | |
d91d8a3f KH |
3667 | |
3668 | int drm_mode_page_flip_ioctl(struct drm_device *dev, | |
3669 | void *data, struct drm_file *file_priv) | |
3670 | { | |
3671 | struct drm_mode_crtc_page_flip *page_flip = data; | |
3672 | struct drm_mode_object *obj; | |
3673 | struct drm_crtc *crtc; | |
b0d12325 | 3674 | struct drm_framebuffer *fb = NULL, *old_fb = NULL; |
d91d8a3f KH |
3675 | struct drm_pending_vblank_event *e = NULL; |
3676 | unsigned long flags; | |
7c80e128 | 3677 | int hdisplay, vdisplay; |
d91d8a3f KH |
3678 | int ret = -EINVAL; |
3679 | ||
3680 | if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS || | |
3681 | page_flip->reserved != 0) | |
3682 | return -EINVAL; | |
3683 | ||
84849903 | 3684 | drm_modeset_lock_all(dev); |
d91d8a3f KH |
3685 | obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC); |
3686 | if (!obj) | |
3687 | goto out; | |
3688 | crtc = obj_to_crtc(obj); | |
3689 | ||
90c1efdd CW |
3690 | if (crtc->fb == NULL) { |
3691 | /* The framebuffer is currently unbound, presumably | |
3692 | * due to a hotplug event, that userspace has not | |
3693 | * yet discovered. | |
3694 | */ | |
3695 | ret = -EBUSY; | |
3696 | goto out; | |
3697 | } | |
3698 | ||
d91d8a3f KH |
3699 | if (crtc->funcs->page_flip == NULL) |
3700 | goto out; | |
3701 | ||
786b99ed DV |
3702 | fb = drm_framebuffer_lookup(dev, page_flip->fb_id); |
3703 | if (!fb) | |
d91d8a3f | 3704 | goto out; |
d91d8a3f | 3705 | |
7c80e128 RC |
3706 | hdisplay = crtc->mode.hdisplay; |
3707 | vdisplay = crtc->mode.vdisplay; | |
3708 | ||
3709 | if (crtc->invert_dimensions) | |
3710 | swap(hdisplay, vdisplay); | |
3711 | ||
3712 | if (hdisplay > fb->width || | |
3713 | vdisplay > fb->height || | |
3714 | crtc->x > fb->width - hdisplay || | |
3715 | crtc->y > fb->height - vdisplay) { | |
3716 | DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n", | |
3717 | fb->width, fb->height, hdisplay, vdisplay, crtc->x, crtc->y, | |
3718 | crtc->invert_dimensions ? " (inverted)" : ""); | |
5f61bb42 VS |
3719 | ret = -ENOSPC; |
3720 | goto out; | |
3721 | } | |
3722 | ||
d91d8a3f KH |
3723 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { |
3724 | ret = -ENOMEM; | |
3725 | spin_lock_irqsave(&dev->event_lock, flags); | |
3726 | if (file_priv->event_space < sizeof e->event) { | |
3727 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
3728 | goto out; | |
3729 | } | |
3730 | file_priv->event_space -= sizeof e->event; | |
3731 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
3732 | ||
3733 | e = kzalloc(sizeof *e, GFP_KERNEL); | |
3734 | if (e == NULL) { | |
3735 | spin_lock_irqsave(&dev->event_lock, flags); | |
3736 | file_priv->event_space += sizeof e->event; | |
3737 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
3738 | goto out; | |
3739 | } | |
3740 | ||
7bd4d7be | 3741 | e->event.base.type = DRM_EVENT_FLIP_COMPLETE; |
d91d8a3f KH |
3742 | e->event.base.length = sizeof e->event; |
3743 | e->event.user_data = page_flip->user_data; | |
3744 | e->base.event = &e->event.base; | |
3745 | e->base.file_priv = file_priv; | |
3746 | e->base.destroy = | |
3747 | (void (*) (struct drm_pending_event *)) kfree; | |
3748 | } | |
3749 | ||
b0d12325 | 3750 | old_fb = crtc->fb; |
d91d8a3f KH |
3751 | ret = crtc->funcs->page_flip(crtc, fb, e); |
3752 | if (ret) { | |
aef6a7ee JS |
3753 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { |
3754 | spin_lock_irqsave(&dev->event_lock, flags); | |
3755 | file_priv->event_space += sizeof e->event; | |
3756 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
3757 | kfree(e); | |
3758 | } | |
b0d12325 DV |
3759 | /* Keep the old fb, don't unref it. */ |
3760 | old_fb = NULL; | |
3761 | } else { | |
3762 | /* Unref only the old framebuffer. */ | |
3763 | fb = NULL; | |
d91d8a3f KH |
3764 | } |
3765 | ||
3766 | out: | |
b0d12325 DV |
3767 | if (fb) |
3768 | drm_framebuffer_unreference(fb); | |
3769 | if (old_fb) | |
3770 | drm_framebuffer_unreference(old_fb); | |
84849903 | 3771 | drm_modeset_unlock_all(dev); |
d91d8a3f KH |
3772 | return ret; |
3773 | } | |
eb033556 CW |
3774 | |
3775 | void drm_mode_config_reset(struct drm_device *dev) | |
3776 | { | |
3777 | struct drm_crtc *crtc; | |
3778 | struct drm_encoder *encoder; | |
3779 | struct drm_connector *connector; | |
3780 | ||
3781 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) | |
3782 | if (crtc->funcs->reset) | |
3783 | crtc->funcs->reset(crtc); | |
3784 | ||
3785 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) | |
3786 | if (encoder->funcs->reset) | |
3787 | encoder->funcs->reset(encoder); | |
3788 | ||
5e2cb2f6 DV |
3789 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
3790 | connector->status = connector_status_unknown; | |
3791 | ||
eb033556 CW |
3792 | if (connector->funcs->reset) |
3793 | connector->funcs->reset(connector); | |
5e2cb2f6 | 3794 | } |
eb033556 CW |
3795 | } |
3796 | EXPORT_SYMBOL(drm_mode_config_reset); | |
ff72145b DA |
3797 | |
3798 | int drm_mode_create_dumb_ioctl(struct drm_device *dev, | |
3799 | void *data, struct drm_file *file_priv) | |
3800 | { | |
3801 | struct drm_mode_create_dumb *args = data; | |
3802 | ||
3803 | if (!dev->driver->dumb_create) | |
3804 | return -ENOSYS; | |
3805 | return dev->driver->dumb_create(file_priv, dev, args); | |
3806 | } | |
3807 | ||
3808 | int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, | |
3809 | void *data, struct drm_file *file_priv) | |
3810 | { | |
3811 | struct drm_mode_map_dumb *args = data; | |
3812 | ||
3813 | /* call driver ioctl to get mmap offset */ | |
3814 | if (!dev->driver->dumb_map_offset) | |
3815 | return -ENOSYS; | |
3816 | ||
3817 | return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); | |
3818 | } | |
3819 | ||
3820 | int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, | |
3821 | void *data, struct drm_file *file_priv) | |
3822 | { | |
3823 | struct drm_mode_destroy_dumb *args = data; | |
3824 | ||
3825 | if (!dev->driver->dumb_destroy) | |
3826 | return -ENOSYS; | |
3827 | ||
3828 | return dev->driver->dumb_destroy(file_priv, dev, args->handle); | |
3829 | } | |
248dbc23 DA |
3830 | |
3831 | /* | |
3832 | * Just need to support RGB formats here for compat with code that doesn't | |
3833 | * use pixel formats directly yet. | |
3834 | */ | |
3835 | void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, | |
3836 | int *bpp) | |
3837 | { | |
3838 | switch (format) { | |
04b3924d VS |
3839 | case DRM_FORMAT_RGB332: |
3840 | case DRM_FORMAT_BGR233: | |
248dbc23 DA |
3841 | *depth = 8; |
3842 | *bpp = 8; | |
3843 | break; | |
04b3924d VS |
3844 | case DRM_FORMAT_XRGB1555: |
3845 | case DRM_FORMAT_XBGR1555: | |
3846 | case DRM_FORMAT_RGBX5551: | |
3847 | case DRM_FORMAT_BGRX5551: | |
3848 | case DRM_FORMAT_ARGB1555: | |
3849 | case DRM_FORMAT_ABGR1555: | |
3850 | case DRM_FORMAT_RGBA5551: | |
3851 | case DRM_FORMAT_BGRA5551: | |
248dbc23 DA |
3852 | *depth = 15; |
3853 | *bpp = 16; | |
3854 | break; | |
04b3924d VS |
3855 | case DRM_FORMAT_RGB565: |
3856 | case DRM_FORMAT_BGR565: | |
248dbc23 DA |
3857 | *depth = 16; |
3858 | *bpp = 16; | |
3859 | break; | |
04b3924d VS |
3860 | case DRM_FORMAT_RGB888: |
3861 | case DRM_FORMAT_BGR888: | |
3862 | *depth = 24; | |
3863 | *bpp = 24; | |
3864 | break; | |
3865 | case DRM_FORMAT_XRGB8888: | |
3866 | case DRM_FORMAT_XBGR8888: | |
3867 | case DRM_FORMAT_RGBX8888: | |
3868 | case DRM_FORMAT_BGRX8888: | |
248dbc23 DA |
3869 | *depth = 24; |
3870 | *bpp = 32; | |
3871 | break; | |
04b3924d VS |
3872 | case DRM_FORMAT_XRGB2101010: |
3873 | case DRM_FORMAT_XBGR2101010: | |
3874 | case DRM_FORMAT_RGBX1010102: | |
3875 | case DRM_FORMAT_BGRX1010102: | |
3876 | case DRM_FORMAT_ARGB2101010: | |
3877 | case DRM_FORMAT_ABGR2101010: | |
3878 | case DRM_FORMAT_RGBA1010102: | |
3879 | case DRM_FORMAT_BGRA1010102: | |
248dbc23 DA |
3880 | *depth = 30; |
3881 | *bpp = 32; | |
3882 | break; | |
04b3924d VS |
3883 | case DRM_FORMAT_ARGB8888: |
3884 | case DRM_FORMAT_ABGR8888: | |
3885 | case DRM_FORMAT_RGBA8888: | |
3886 | case DRM_FORMAT_BGRA8888: | |
248dbc23 DA |
3887 | *depth = 32; |
3888 | *bpp = 32; | |
3889 | break; | |
3890 | default: | |
3891 | DRM_DEBUG_KMS("unsupported pixel format\n"); | |
3892 | *depth = 0; | |
3893 | *bpp = 0; | |
3894 | break; | |
3895 | } | |
3896 | } | |
3897 | EXPORT_SYMBOL(drm_fb_get_bpp_depth); | |
141670e9 VS |
3898 | |
3899 | /** | |
3900 | * drm_format_num_planes - get the number of planes for format | |
3901 | * @format: pixel format (DRM_FORMAT_*) | |
3902 | * | |
3903 | * RETURNS: | |
3904 | * The number of planes used by the specified pixel format. | |
3905 | */ | |
3906 | int drm_format_num_planes(uint32_t format) | |
3907 | { | |
3908 | switch (format) { | |
3909 | case DRM_FORMAT_YUV410: | |
3910 | case DRM_FORMAT_YVU410: | |
3911 | case DRM_FORMAT_YUV411: | |
3912 | case DRM_FORMAT_YVU411: | |
3913 | case DRM_FORMAT_YUV420: | |
3914 | case DRM_FORMAT_YVU420: | |
3915 | case DRM_FORMAT_YUV422: | |
3916 | case DRM_FORMAT_YVU422: | |
3917 | case DRM_FORMAT_YUV444: | |
3918 | case DRM_FORMAT_YVU444: | |
3919 | return 3; | |
3920 | case DRM_FORMAT_NV12: | |
3921 | case DRM_FORMAT_NV21: | |
3922 | case DRM_FORMAT_NV16: | |
3923 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
3924 | case DRM_FORMAT_NV24: |
3925 | case DRM_FORMAT_NV42: | |
141670e9 VS |
3926 | return 2; |
3927 | default: | |
3928 | return 1; | |
3929 | } | |
3930 | } | |
3931 | EXPORT_SYMBOL(drm_format_num_planes); | |
5a86bd55 VS |
3932 | |
3933 | /** | |
3934 | * drm_format_plane_cpp - determine the bytes per pixel value | |
3935 | * @format: pixel format (DRM_FORMAT_*) | |
3936 | * @plane: plane index | |
3937 | * | |
3938 | * RETURNS: | |
3939 | * The bytes per pixel value for the specified plane. | |
3940 | */ | |
3941 | int drm_format_plane_cpp(uint32_t format, int plane) | |
3942 | { | |
3943 | unsigned int depth; | |
3944 | int bpp; | |
3945 | ||
3946 | if (plane >= drm_format_num_planes(format)) | |
3947 | return 0; | |
3948 | ||
3949 | switch (format) { | |
3950 | case DRM_FORMAT_YUYV: | |
3951 | case DRM_FORMAT_YVYU: | |
3952 | case DRM_FORMAT_UYVY: | |
3953 | case DRM_FORMAT_VYUY: | |
3954 | return 2; | |
3955 | case DRM_FORMAT_NV12: | |
3956 | case DRM_FORMAT_NV21: | |
3957 | case DRM_FORMAT_NV16: | |
3958 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
3959 | case DRM_FORMAT_NV24: |
3960 | case DRM_FORMAT_NV42: | |
5a86bd55 VS |
3961 | return plane ? 2 : 1; |
3962 | case DRM_FORMAT_YUV410: | |
3963 | case DRM_FORMAT_YVU410: | |
3964 | case DRM_FORMAT_YUV411: | |
3965 | case DRM_FORMAT_YVU411: | |
3966 | case DRM_FORMAT_YUV420: | |
3967 | case DRM_FORMAT_YVU420: | |
3968 | case DRM_FORMAT_YUV422: | |
3969 | case DRM_FORMAT_YVU422: | |
3970 | case DRM_FORMAT_YUV444: | |
3971 | case DRM_FORMAT_YVU444: | |
3972 | return 1; | |
3973 | default: | |
3974 | drm_fb_get_bpp_depth(format, &depth, &bpp); | |
3975 | return bpp >> 3; | |
3976 | } | |
3977 | } | |
3978 | EXPORT_SYMBOL(drm_format_plane_cpp); | |
01b68b04 VS |
3979 | |
3980 | /** | |
3981 | * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor | |
3982 | * @format: pixel format (DRM_FORMAT_*) | |
3983 | * | |
3984 | * RETURNS: | |
3985 | * The horizontal chroma subsampling factor for the | |
3986 | * specified pixel format. | |
3987 | */ | |
3988 | int drm_format_horz_chroma_subsampling(uint32_t format) | |
3989 | { | |
3990 | switch (format) { | |
3991 | case DRM_FORMAT_YUV411: | |
3992 | case DRM_FORMAT_YVU411: | |
3993 | case DRM_FORMAT_YUV410: | |
3994 | case DRM_FORMAT_YVU410: | |
3995 | return 4; | |
3996 | case DRM_FORMAT_YUYV: | |
3997 | case DRM_FORMAT_YVYU: | |
3998 | case DRM_FORMAT_UYVY: | |
3999 | case DRM_FORMAT_VYUY: | |
4000 | case DRM_FORMAT_NV12: | |
4001 | case DRM_FORMAT_NV21: | |
4002 | case DRM_FORMAT_NV16: | |
4003 | case DRM_FORMAT_NV61: | |
4004 | case DRM_FORMAT_YUV422: | |
4005 | case DRM_FORMAT_YVU422: | |
4006 | case DRM_FORMAT_YUV420: | |
4007 | case DRM_FORMAT_YVU420: | |
4008 | return 2; | |
4009 | default: | |
4010 | return 1; | |
4011 | } | |
4012 | } | |
4013 | EXPORT_SYMBOL(drm_format_horz_chroma_subsampling); | |
4014 | ||
4015 | /** | |
4016 | * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor | |
4017 | * @format: pixel format (DRM_FORMAT_*) | |
4018 | * | |
4019 | * RETURNS: | |
4020 | * The vertical chroma subsampling factor for the | |
4021 | * specified pixel format. | |
4022 | */ | |
4023 | int drm_format_vert_chroma_subsampling(uint32_t format) | |
4024 | { | |
4025 | switch (format) { | |
4026 | case DRM_FORMAT_YUV410: | |
4027 | case DRM_FORMAT_YVU410: | |
4028 | return 4; | |
4029 | case DRM_FORMAT_YUV420: | |
4030 | case DRM_FORMAT_YVU420: | |
4031 | case DRM_FORMAT_NV12: | |
4032 | case DRM_FORMAT_NV21: | |
4033 | return 2; | |
4034 | default: | |
4035 | return 1; | |
4036 | } | |
4037 | } | |
4038 | EXPORT_SYMBOL(drm_format_vert_chroma_subsampling); |