Commit | Line | Data |
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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 | } | |
71 | EXPORT_SYMBOL(drm_modeset_unlock_all); | |
72 | ||
6aed8ec3 DV |
73 | /** |
74 | * drm_warn_on_modeset_not_all_locked - check that all modeset locks are locked | |
75 | * @dev: device | |
76 | */ | |
77 | void drm_warn_on_modeset_not_all_locked(struct drm_device *dev) | |
78 | { | |
79 | struct drm_crtc *crtc; | |
80 | ||
81 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) | |
82 | WARN_ON(!mutex_is_locked(&crtc->mutex)); | |
83 | ||
84 | WARN_ON(!mutex_is_locked(&dev->mode_config.mutex)); | |
85 | } | |
86 | EXPORT_SYMBOL(drm_warn_on_modeset_not_all_locked); | |
87 | ||
f453ba04 DA |
88 | /* Avoid boilerplate. I'm tired of typing. */ |
89 | #define DRM_ENUM_NAME_FN(fnname, list) \ | |
90 | char *fnname(int val) \ | |
91 | { \ | |
92 | int i; \ | |
93 | for (i = 0; i < ARRAY_SIZE(list); i++) { \ | |
94 | if (list[i].type == val) \ | |
95 | return list[i].name; \ | |
96 | } \ | |
97 | return "(unknown)"; \ | |
98 | } | |
99 | ||
100 | /* | |
101 | * Global properties | |
102 | */ | |
103 | static struct drm_prop_enum_list drm_dpms_enum_list[] = | |
104 | { { DRM_MODE_DPMS_ON, "On" }, | |
105 | { DRM_MODE_DPMS_STANDBY, "Standby" }, | |
106 | { DRM_MODE_DPMS_SUSPEND, "Suspend" }, | |
107 | { DRM_MODE_DPMS_OFF, "Off" } | |
108 | }; | |
109 | ||
110 | DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list) | |
111 | ||
112 | /* | |
113 | * Optional properties | |
114 | */ | |
115 | static struct drm_prop_enum_list drm_scaling_mode_enum_list[] = | |
116 | { | |
53bd8389 JB |
117 | { DRM_MODE_SCALE_NONE, "None" }, |
118 | { DRM_MODE_SCALE_FULLSCREEN, "Full" }, | |
119 | { DRM_MODE_SCALE_CENTER, "Center" }, | |
120 | { DRM_MODE_SCALE_ASPECT, "Full aspect" }, | |
f453ba04 DA |
121 | }; |
122 | ||
123 | static struct drm_prop_enum_list drm_dithering_mode_enum_list[] = | |
124 | { | |
125 | { DRM_MODE_DITHERING_OFF, "Off" }, | |
126 | { DRM_MODE_DITHERING_ON, "On" }, | |
92897b5c | 127 | { DRM_MODE_DITHERING_AUTO, "Automatic" }, |
f453ba04 DA |
128 | }; |
129 | ||
130 | /* | |
131 | * Non-global properties, but "required" for certain connectors. | |
132 | */ | |
133 | static struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = | |
134 | { | |
135 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ | |
136 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
137 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
138 | }; | |
139 | ||
140 | DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list) | |
141 | ||
142 | static struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = | |
143 | { | |
144 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ | |
145 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
146 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
147 | }; | |
148 | ||
149 | DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name, | |
150 | drm_dvi_i_subconnector_enum_list) | |
151 | ||
152 | static struct drm_prop_enum_list drm_tv_select_enum_list[] = | |
153 | { | |
154 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ | |
155 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
156 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
157 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 158 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
159 | }; |
160 | ||
161 | DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list) | |
162 | ||
163 | static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = | |
164 | { | |
165 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ | |
166 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
167 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
168 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 169 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
170 | }; |
171 | ||
172 | DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, | |
173 | drm_tv_subconnector_enum_list) | |
174 | ||
884840aa JB |
175 | static struct drm_prop_enum_list drm_dirty_info_enum_list[] = { |
176 | { DRM_MODE_DIRTY_OFF, "Off" }, | |
177 | { DRM_MODE_DIRTY_ON, "On" }, | |
178 | { DRM_MODE_DIRTY_ANNOTATE, "Annotate" }, | |
179 | }; | |
180 | ||
181 | DRM_ENUM_NAME_FN(drm_get_dirty_info_name, | |
182 | drm_dirty_info_enum_list) | |
183 | ||
f453ba04 DA |
184 | struct drm_conn_prop_enum_list { |
185 | int type; | |
186 | char *name; | |
187 | int count; | |
188 | }; | |
189 | ||
190 | /* | |
191 | * Connector and encoder types. | |
192 | */ | |
193 | static struct drm_conn_prop_enum_list drm_connector_enum_list[] = | |
194 | { { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 }, | |
195 | { DRM_MODE_CONNECTOR_VGA, "VGA", 0 }, | |
196 | { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 }, | |
197 | { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 }, | |
198 | { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 }, | |
199 | { DRM_MODE_CONNECTOR_Composite, "Composite", 0 }, | |
200 | { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 }, | |
201 | { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 }, | |
202 | { DRM_MODE_CONNECTOR_Component, "Component", 0 }, | |
e76116ca AD |
203 | { DRM_MODE_CONNECTOR_9PinDIN, "DIN", 0 }, |
204 | { DRM_MODE_CONNECTOR_DisplayPort, "DP", 0 }, | |
205 | { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A", 0 }, | |
206 | { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B", 0 }, | |
74bd3c26 | 207 | { DRM_MODE_CONNECTOR_TV, "TV", 0 }, |
e76116ca | 208 | { DRM_MODE_CONNECTOR_eDP, "eDP", 0 }, |
a7331e5c | 209 | { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual", 0}, |
f453ba04 DA |
210 | }; |
211 | ||
212 | static struct drm_prop_enum_list drm_encoder_enum_list[] = | |
213 | { { DRM_MODE_ENCODER_NONE, "None" }, | |
214 | { DRM_MODE_ENCODER_DAC, "DAC" }, | |
215 | { DRM_MODE_ENCODER_TMDS, "TMDS" }, | |
216 | { DRM_MODE_ENCODER_LVDS, "LVDS" }, | |
217 | { DRM_MODE_ENCODER_TVDAC, "TV" }, | |
a7331e5c | 218 | { DRM_MODE_ENCODER_VIRTUAL, "Virtual" }, |
f453ba04 DA |
219 | }; |
220 | ||
221 | char *drm_get_encoder_name(struct drm_encoder *encoder) | |
222 | { | |
223 | static char buf[32]; | |
224 | ||
225 | snprintf(buf, 32, "%s-%d", | |
226 | drm_encoder_enum_list[encoder->encoder_type].name, | |
227 | encoder->base.id); | |
228 | return buf; | |
229 | } | |
13a8195b | 230 | EXPORT_SYMBOL(drm_get_encoder_name); |
f453ba04 DA |
231 | |
232 | char *drm_get_connector_name(struct drm_connector *connector) | |
233 | { | |
234 | static char buf[32]; | |
235 | ||
236 | snprintf(buf, 32, "%s-%d", | |
237 | drm_connector_enum_list[connector->connector_type].name, | |
238 | connector->connector_type_id); | |
239 | return buf; | |
240 | } | |
241 | EXPORT_SYMBOL(drm_get_connector_name); | |
242 | ||
243 | char *drm_get_connector_status_name(enum drm_connector_status status) | |
244 | { | |
245 | if (status == connector_status_connected) | |
246 | return "connected"; | |
247 | else if (status == connector_status_disconnected) | |
248 | return "disconnected"; | |
249 | else | |
250 | return "unknown"; | |
251 | } | |
252 | ||
253 | /** | |
065a50ed | 254 | * drm_mode_object_get - allocate a new modeset identifier |
f453ba04 | 255 | * @dev: DRM device |
065a50ed DV |
256 | * @obj: object pointer, used to generate unique ID |
257 | * @obj_type: object type | |
f453ba04 | 258 | * |
f453ba04 DA |
259 | * Create a unique identifier based on @ptr in @dev's identifier space. Used |
260 | * for tracking modes, CRTCs and connectors. | |
261 | * | |
262 | * RETURNS: | |
263 | * New unique (relative to other objects in @dev) integer identifier for the | |
264 | * object. | |
265 | */ | |
266 | static int drm_mode_object_get(struct drm_device *dev, | |
267 | struct drm_mode_object *obj, uint32_t obj_type) | |
268 | { | |
f453ba04 DA |
269 | int ret; |
270 | ||
ad2563c2 | 271 | mutex_lock(&dev->mode_config.idr_mutex); |
2e928815 TH |
272 | ret = idr_alloc(&dev->mode_config.crtc_idr, obj, 1, 0, GFP_KERNEL); |
273 | if (ret >= 0) { | |
4b096ac1 DV |
274 | /* |
275 | * Set up the object linking under the protection of the idr | |
276 | * lock so that other users can't see inconsistent state. | |
277 | */ | |
2e928815 | 278 | obj->id = ret; |
4b096ac1 DV |
279 | obj->type = obj_type; |
280 | } | |
ad2563c2 | 281 | mutex_unlock(&dev->mode_config.idr_mutex); |
4b096ac1 | 282 | |
2e928815 | 283 | return ret < 0 ? ret : 0; |
f453ba04 DA |
284 | } |
285 | ||
286 | /** | |
065a50ed | 287 | * drm_mode_object_put - free a modeset identifer |
f453ba04 | 288 | * @dev: DRM device |
065a50ed | 289 | * @object: object to free |
f453ba04 | 290 | * |
f453ba04 DA |
291 | * Free @id from @dev's unique identifier pool. |
292 | */ | |
293 | static void drm_mode_object_put(struct drm_device *dev, | |
294 | struct drm_mode_object *object) | |
295 | { | |
ad2563c2 | 296 | mutex_lock(&dev->mode_config.idr_mutex); |
f453ba04 | 297 | idr_remove(&dev->mode_config.crtc_idr, object->id); |
ad2563c2 | 298 | mutex_unlock(&dev->mode_config.idr_mutex); |
f453ba04 DA |
299 | } |
300 | ||
786b99ed DV |
301 | /** |
302 | * drm_mode_object_find - look up a drm object with static lifetime | |
303 | * @dev: drm device | |
304 | * @id: id of the mode object | |
305 | * @type: type of the mode object | |
306 | * | |
307 | * Note that framebuffers cannot be looked up with this functions - since those | |
308 | * are reference counted, they need special treatment. | |
309 | */ | |
7a9c9060 DV |
310 | struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, |
311 | uint32_t id, uint32_t type) | |
f453ba04 | 312 | { |
ad2563c2 | 313 | struct drm_mode_object *obj = NULL; |
f453ba04 | 314 | |
786b99ed DV |
315 | /* Framebuffers are reference counted and need their own lookup |
316 | * function.*/ | |
317 | WARN_ON(type == DRM_MODE_OBJECT_FB); | |
318 | ||
ad2563c2 | 319 | mutex_lock(&dev->mode_config.idr_mutex); |
f453ba04 DA |
320 | obj = idr_find(&dev->mode_config.crtc_idr, id); |
321 | if (!obj || (obj->type != type) || (obj->id != id)) | |
ad2563c2 JB |
322 | obj = NULL; |
323 | mutex_unlock(&dev->mode_config.idr_mutex); | |
f453ba04 DA |
324 | |
325 | return obj; | |
326 | } | |
327 | EXPORT_SYMBOL(drm_mode_object_find); | |
328 | ||
f453ba04 DA |
329 | /** |
330 | * drm_framebuffer_init - initialize a framebuffer | |
331 | * @dev: DRM device | |
065a50ed DV |
332 | * @fb: framebuffer to be initialized |
333 | * @funcs: ... with these functions | |
f453ba04 | 334 | * |
f453ba04 DA |
335 | * Allocates an ID for the framebuffer's parent mode object, sets its mode |
336 | * functions & device file and adds it to the master fd list. | |
337 | * | |
4b096ac1 DV |
338 | * IMPORTANT: |
339 | * This functions publishes the fb and makes it available for concurrent access | |
340 | * by other users. Which means by this point the fb _must_ be fully set up - | |
341 | * since all the fb attributes are invariant over its lifetime, no further | |
342 | * locking but only correct reference counting is required. | |
343 | * | |
f453ba04 | 344 | * RETURNS: |
af901ca1 | 345 | * Zero on success, error code on failure. |
f453ba04 DA |
346 | */ |
347 | int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, | |
348 | const struct drm_framebuffer_funcs *funcs) | |
349 | { | |
350 | int ret; | |
351 | ||
4b096ac1 | 352 | mutex_lock(&dev->mode_config.fb_lock); |
f7eff60e | 353 | kref_init(&fb->refcount); |
4b096ac1 DV |
354 | INIT_LIST_HEAD(&fb->filp_head); |
355 | fb->dev = dev; | |
356 | fb->funcs = funcs; | |
f7eff60e | 357 | |
f453ba04 | 358 | ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB); |
6bfc56aa | 359 | if (ret) |
4b096ac1 | 360 | goto out; |
f453ba04 | 361 | |
2b677e8c DV |
362 | /* Grab the idr reference. */ |
363 | drm_framebuffer_reference(fb); | |
364 | ||
f453ba04 DA |
365 | dev->mode_config.num_fb++; |
366 | list_add(&fb->head, &dev->mode_config.fb_list); | |
4b096ac1 DV |
367 | out: |
368 | mutex_unlock(&dev->mode_config.fb_lock); | |
f453ba04 DA |
369 | |
370 | return 0; | |
371 | } | |
372 | EXPORT_SYMBOL(drm_framebuffer_init); | |
373 | ||
f7eff60e RC |
374 | static void drm_framebuffer_free(struct kref *kref) |
375 | { | |
376 | struct drm_framebuffer *fb = | |
377 | container_of(kref, struct drm_framebuffer, refcount); | |
378 | fb->funcs->destroy(fb); | |
379 | } | |
380 | ||
2b677e8c DV |
381 | static struct drm_framebuffer *__drm_framebuffer_lookup(struct drm_device *dev, |
382 | uint32_t id) | |
383 | { | |
384 | struct drm_mode_object *obj = NULL; | |
385 | struct drm_framebuffer *fb; | |
386 | ||
387 | mutex_lock(&dev->mode_config.idr_mutex); | |
388 | obj = idr_find(&dev->mode_config.crtc_idr, id); | |
389 | if (!obj || (obj->type != DRM_MODE_OBJECT_FB) || (obj->id != id)) | |
390 | fb = NULL; | |
391 | else | |
392 | fb = obj_to_fb(obj); | |
393 | mutex_unlock(&dev->mode_config.idr_mutex); | |
394 | ||
395 | return fb; | |
396 | } | |
397 | ||
786b99ed DV |
398 | /** |
399 | * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference | |
400 | * @dev: drm device | |
401 | * @id: id of the fb object | |
402 | * | |
403 | * If successful, this grabs an additional reference to the framebuffer - | |
404 | * callers need to make sure to eventually unreference the returned framebuffer | |
405 | * again. | |
406 | */ | |
407 | struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev, | |
408 | uint32_t id) | |
409 | { | |
786b99ed DV |
410 | struct drm_framebuffer *fb; |
411 | ||
412 | mutex_lock(&dev->mode_config.fb_lock); | |
2b677e8c | 413 | fb = __drm_framebuffer_lookup(dev, id); |
786b99ed | 414 | if (fb) |
9131d3d8 | 415 | drm_framebuffer_reference(fb); |
786b99ed DV |
416 | mutex_unlock(&dev->mode_config.fb_lock); |
417 | ||
418 | return fb; | |
419 | } | |
420 | EXPORT_SYMBOL(drm_framebuffer_lookup); | |
421 | ||
f7eff60e RC |
422 | /** |
423 | * drm_framebuffer_unreference - unref a framebuffer | |
065a50ed DV |
424 | * @fb: framebuffer to unref |
425 | * | |
426 | * This functions decrements the fb's refcount and frees it if it drops to zero. | |
f7eff60e RC |
427 | */ |
428 | void drm_framebuffer_unreference(struct drm_framebuffer *fb) | |
429 | { | |
f7eff60e | 430 | DRM_DEBUG("FB ID: %d\n", fb->base.id); |
f7eff60e RC |
431 | kref_put(&fb->refcount, drm_framebuffer_free); |
432 | } | |
433 | EXPORT_SYMBOL(drm_framebuffer_unreference); | |
434 | ||
435 | /** | |
436 | * drm_framebuffer_reference - incr the fb refcnt | |
065a50ed | 437 | * @fb: framebuffer |
f7eff60e RC |
438 | */ |
439 | void drm_framebuffer_reference(struct drm_framebuffer *fb) | |
440 | { | |
441 | DRM_DEBUG("FB ID: %d\n", fb->base.id); | |
442 | kref_get(&fb->refcount); | |
443 | } | |
444 | EXPORT_SYMBOL(drm_framebuffer_reference); | |
445 | ||
2b677e8c DV |
446 | static void drm_framebuffer_free_bug(struct kref *kref) |
447 | { | |
448 | BUG(); | |
449 | } | |
450 | ||
6c2a7532 DV |
451 | static void __drm_framebuffer_unreference(struct drm_framebuffer *fb) |
452 | { | |
453 | DRM_DEBUG("FB ID: %d\n", fb->base.id); | |
454 | kref_put(&fb->refcount, drm_framebuffer_free_bug); | |
455 | } | |
456 | ||
2b677e8c DV |
457 | /* dev->mode_config.fb_lock must be held! */ |
458 | static void __drm_framebuffer_unregister(struct drm_device *dev, | |
459 | struct drm_framebuffer *fb) | |
460 | { | |
461 | mutex_lock(&dev->mode_config.idr_mutex); | |
462 | idr_remove(&dev->mode_config.crtc_idr, fb->base.id); | |
463 | mutex_unlock(&dev->mode_config.idr_mutex); | |
464 | ||
465 | fb->base.id = 0; | |
466 | ||
6c2a7532 | 467 | __drm_framebuffer_unreference(fb); |
2b677e8c DV |
468 | } |
469 | ||
36206361 DV |
470 | /** |
471 | * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr | |
472 | * @fb: fb to unregister | |
473 | * | |
474 | * Drivers need to call this when cleaning up driver-private framebuffers, e.g. | |
475 | * those used for fbdev. Note that the caller must hold a reference of it's own, | |
476 | * i.e. the object may not be destroyed through this call (since it'll lead to a | |
477 | * locking inversion). | |
478 | */ | |
479 | void drm_framebuffer_unregister_private(struct drm_framebuffer *fb) | |
480 | { | |
2b677e8c DV |
481 | struct drm_device *dev = fb->dev; |
482 | ||
483 | mutex_lock(&dev->mode_config.fb_lock); | |
484 | /* Mark fb as reaped and drop idr ref. */ | |
485 | __drm_framebuffer_unregister(dev, fb); | |
486 | mutex_unlock(&dev->mode_config.fb_lock); | |
36206361 DV |
487 | } |
488 | EXPORT_SYMBOL(drm_framebuffer_unregister_private); | |
489 | ||
f453ba04 DA |
490 | /** |
491 | * drm_framebuffer_cleanup - remove a framebuffer object | |
492 | * @fb: framebuffer to remove | |
493 | * | |
36206361 DV |
494 | * Cleanup references to a user-created framebuffer. This function is intended |
495 | * to be used from the drivers ->destroy callback. | |
496 | * | |
497 | * Note that this function does not remove the fb from active usuage - if it is | |
498 | * still used anywhere, hilarity can ensue since userspace could call getfb on | |
499 | * the id and get back -EINVAL. Obviously no concern at driver unload time. | |
500 | * | |
501 | * Also, the framebuffer will not be removed from the lookup idr - for | |
502 | * user-created framebuffers this will happen in in the rmfb ioctl. For | |
503 | * driver-private objects (e.g. for fbdev) drivers need to explicitly call | |
504 | * drm_framebuffer_unregister_private. | |
f453ba04 DA |
505 | */ |
506 | void drm_framebuffer_cleanup(struct drm_framebuffer *fb) | |
f7eff60e RC |
507 | { |
508 | struct drm_device *dev = fb->dev; | |
8faf6b18 | 509 | |
4b096ac1 | 510 | mutex_lock(&dev->mode_config.fb_lock); |
f7eff60e RC |
511 | list_del(&fb->head); |
512 | dev->mode_config.num_fb--; | |
4b096ac1 | 513 | mutex_unlock(&dev->mode_config.fb_lock); |
f7eff60e RC |
514 | } |
515 | EXPORT_SYMBOL(drm_framebuffer_cleanup); | |
516 | ||
517 | /** | |
518 | * drm_framebuffer_remove - remove and unreference a framebuffer object | |
519 | * @fb: framebuffer to remove | |
520 | * | |
f7eff60e | 521 | * Scans all the CRTCs and planes in @dev's mode_config. If they're |
36206361 | 522 | * using @fb, removes it, setting it to NULL. Then drops the reference to the |
b62584e3 DV |
523 | * passed-in framebuffer. Might take the modeset locks. |
524 | * | |
525 | * Note that this function optimizes the cleanup away if the caller holds the | |
526 | * last reference to the framebuffer. It is also guaranteed to not take the | |
527 | * modeset locks in this case. | |
f7eff60e RC |
528 | */ |
529 | void drm_framebuffer_remove(struct drm_framebuffer *fb) | |
f453ba04 DA |
530 | { |
531 | struct drm_device *dev = fb->dev; | |
532 | struct drm_crtc *crtc; | |
8cf5c917 | 533 | struct drm_plane *plane; |
5ef5f72f DA |
534 | struct drm_mode_set set; |
535 | int ret; | |
f453ba04 | 536 | |
4b096ac1 | 537 | WARN_ON(!list_empty(&fb->filp_head)); |
8faf6b18 | 538 | |
b62584e3 DV |
539 | /* |
540 | * drm ABI mandates that we remove any deleted framebuffers from active | |
541 | * useage. But since most sane clients only remove framebuffers they no | |
542 | * longer need, try to optimize this away. | |
543 | * | |
544 | * Since we're holding a reference ourselves, observing a refcount of 1 | |
545 | * means that we're the last holder and can skip it. Also, the refcount | |
546 | * can never increase from 1 again, so we don't need any barriers or | |
547 | * locks. | |
548 | * | |
549 | * Note that userspace could try to race with use and instate a new | |
550 | * usage _after_ we've cleared all current ones. End result will be an | |
551 | * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot | |
552 | * in this manner. | |
553 | */ | |
554 | if (atomic_read(&fb->refcount.refcount) > 1) { | |
555 | drm_modeset_lock_all(dev); | |
556 | /* remove from any CRTC */ | |
557 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
558 | if (crtc->fb == fb) { | |
559 | /* should turn off the crtc */ | |
560 | memset(&set, 0, sizeof(struct drm_mode_set)); | |
561 | set.crtc = crtc; | |
562 | set.fb = NULL; | |
563 | ret = drm_mode_set_config_internal(&set); | |
564 | if (ret) | |
565 | DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc); | |
566 | } | |
5ef5f72f | 567 | } |
f453ba04 | 568 | |
b62584e3 DV |
569 | list_for_each_entry(plane, &dev->mode_config.plane_list, head) { |
570 | if (plane->fb == fb) { | |
571 | /* should turn off the crtc */ | |
572 | ret = plane->funcs->disable_plane(plane); | |
573 | if (ret) | |
574 | DRM_ERROR("failed to disable plane with busy fb\n"); | |
575 | /* disconnect the plane from the fb and crtc: */ | |
576 | __drm_framebuffer_unreference(plane->fb); | |
577 | plane->fb = NULL; | |
578 | plane->crtc = NULL; | |
579 | } | |
8cf5c917 | 580 | } |
b62584e3 | 581 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
582 | } |
583 | ||
f7eff60e | 584 | drm_framebuffer_unreference(fb); |
f453ba04 | 585 | } |
f7eff60e | 586 | EXPORT_SYMBOL(drm_framebuffer_remove); |
f453ba04 DA |
587 | |
588 | /** | |
589 | * drm_crtc_init - Initialise a new CRTC object | |
590 | * @dev: DRM device | |
591 | * @crtc: CRTC object to init | |
592 | * @funcs: callbacks for the new CRTC | |
593 | * | |
f453ba04 | 594 | * Inits a new object created as base part of an driver crtc object. |
6bfc56aa VS |
595 | * |
596 | * RETURNS: | |
597 | * Zero on success, error code on failure. | |
f453ba04 | 598 | */ |
6bfc56aa | 599 | int drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc, |
f453ba04 DA |
600 | const struct drm_crtc_funcs *funcs) |
601 | { | |
6bfc56aa VS |
602 | int ret; |
603 | ||
f453ba04 DA |
604 | crtc->dev = dev; |
605 | crtc->funcs = funcs; | |
7c80e128 | 606 | crtc->invert_dimensions = false; |
f453ba04 | 607 | |
84849903 | 608 | drm_modeset_lock_all(dev); |
29494c17 DV |
609 | mutex_init(&crtc->mutex); |
610 | mutex_lock_nest_lock(&crtc->mutex, &dev->mode_config.mutex); | |
6bfc56aa VS |
611 | |
612 | ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); | |
613 | if (ret) | |
614 | goto out; | |
f453ba04 | 615 | |
bffd9de0 PZ |
616 | crtc->base.properties = &crtc->properties; |
617 | ||
f453ba04 DA |
618 | list_add_tail(&crtc->head, &dev->mode_config.crtc_list); |
619 | dev->mode_config.num_crtc++; | |
6bfc56aa VS |
620 | |
621 | out: | |
84849903 | 622 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
623 | |
624 | return ret; | |
f453ba04 DA |
625 | } |
626 | EXPORT_SYMBOL(drm_crtc_init); | |
627 | ||
628 | /** | |
629 | * drm_crtc_cleanup - Cleans up the core crtc usage. | |
630 | * @crtc: CRTC to cleanup | |
631 | * | |
f453ba04 DA |
632 | * Cleanup @crtc. Removes from drm modesetting space |
633 | * does NOT free object, caller does that. | |
634 | */ | |
635 | void drm_crtc_cleanup(struct drm_crtc *crtc) | |
636 | { | |
637 | struct drm_device *dev = crtc->dev; | |
638 | ||
9e1c156f SK |
639 | kfree(crtc->gamma_store); |
640 | crtc->gamma_store = NULL; | |
f453ba04 DA |
641 | |
642 | drm_mode_object_put(dev, &crtc->base); | |
643 | list_del(&crtc->head); | |
644 | dev->mode_config.num_crtc--; | |
645 | } | |
646 | EXPORT_SYMBOL(drm_crtc_cleanup); | |
647 | ||
648 | /** | |
649 | * drm_mode_probed_add - add a mode to a connector's probed mode list | |
650 | * @connector: connector the new mode | |
651 | * @mode: mode data | |
652 | * | |
f453ba04 DA |
653 | * Add @mode to @connector's mode list for later use. |
654 | */ | |
655 | void drm_mode_probed_add(struct drm_connector *connector, | |
656 | struct drm_display_mode *mode) | |
657 | { | |
658 | list_add(&mode->head, &connector->probed_modes); | |
659 | } | |
660 | EXPORT_SYMBOL(drm_mode_probed_add); | |
661 | ||
662 | /** | |
663 | * drm_mode_remove - remove and free a mode | |
664 | * @connector: connector list to modify | |
665 | * @mode: mode to remove | |
666 | * | |
f453ba04 DA |
667 | * Remove @mode from @connector's mode list, then free it. |
668 | */ | |
669 | void drm_mode_remove(struct drm_connector *connector, | |
670 | struct drm_display_mode *mode) | |
671 | { | |
672 | list_del(&mode->head); | |
554f1d78 | 673 | drm_mode_destroy(connector->dev, mode); |
f453ba04 DA |
674 | } |
675 | EXPORT_SYMBOL(drm_mode_remove); | |
676 | ||
677 | /** | |
678 | * drm_connector_init - Init a preallocated connector | |
679 | * @dev: DRM device | |
680 | * @connector: the connector to init | |
681 | * @funcs: callbacks for this connector | |
065a50ed | 682 | * @connector_type: user visible type of the connector |
f453ba04 | 683 | * |
f453ba04 DA |
684 | * Initialises a preallocated connector. Connectors should be |
685 | * subclassed as part of driver connector objects. | |
6bfc56aa VS |
686 | * |
687 | * RETURNS: | |
688 | * Zero on success, error code on failure. | |
f453ba04 | 689 | */ |
6bfc56aa VS |
690 | int drm_connector_init(struct drm_device *dev, |
691 | struct drm_connector *connector, | |
692 | const struct drm_connector_funcs *funcs, | |
693 | int connector_type) | |
f453ba04 | 694 | { |
6bfc56aa VS |
695 | int ret; |
696 | ||
84849903 | 697 | drm_modeset_lock_all(dev); |
f453ba04 | 698 | |
6bfc56aa VS |
699 | ret = drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR); |
700 | if (ret) | |
701 | goto out; | |
702 | ||
7e3bdf4a | 703 | connector->base.properties = &connector->properties; |
f453ba04 DA |
704 | connector->dev = dev; |
705 | connector->funcs = funcs; | |
f453ba04 DA |
706 | connector->connector_type = connector_type; |
707 | connector->connector_type_id = | |
708 | ++drm_connector_enum_list[connector_type].count; /* TODO */ | |
709 | INIT_LIST_HEAD(&connector->user_modes); | |
710 | INIT_LIST_HEAD(&connector->probed_modes); | |
711 | INIT_LIST_HEAD(&connector->modes); | |
712 | connector->edid_blob_ptr = NULL; | |
5e2cb2f6 | 713 | connector->status = connector_status_unknown; |
f453ba04 DA |
714 | |
715 | list_add_tail(&connector->head, &dev->mode_config.connector_list); | |
716 | dev->mode_config.num_connector++; | |
717 | ||
a7331e5c | 718 | if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL) |
58495563 | 719 | drm_object_attach_property(&connector->base, |
a7331e5c TH |
720 | dev->mode_config.edid_property, |
721 | 0); | |
f453ba04 | 722 | |
58495563 | 723 | drm_object_attach_property(&connector->base, |
f453ba04 DA |
724 | dev->mode_config.dpms_property, 0); |
725 | ||
6bfc56aa | 726 | out: |
84849903 | 727 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
728 | |
729 | return ret; | |
f453ba04 DA |
730 | } |
731 | EXPORT_SYMBOL(drm_connector_init); | |
732 | ||
733 | /** | |
734 | * drm_connector_cleanup - cleans up an initialised connector | |
735 | * @connector: connector to cleanup | |
736 | * | |
f453ba04 DA |
737 | * Cleans up the connector but doesn't free the object. |
738 | */ | |
739 | void drm_connector_cleanup(struct drm_connector *connector) | |
740 | { | |
741 | struct drm_device *dev = connector->dev; | |
742 | struct drm_display_mode *mode, *t; | |
743 | ||
744 | list_for_each_entry_safe(mode, t, &connector->probed_modes, head) | |
745 | drm_mode_remove(connector, mode); | |
746 | ||
747 | list_for_each_entry_safe(mode, t, &connector->modes, head) | |
748 | drm_mode_remove(connector, mode); | |
749 | ||
750 | list_for_each_entry_safe(mode, t, &connector->user_modes, head) | |
751 | drm_mode_remove(connector, mode); | |
752 | ||
f453ba04 DA |
753 | drm_mode_object_put(dev, &connector->base); |
754 | list_del(&connector->head); | |
6380c509 | 755 | dev->mode_config.num_connector--; |
f453ba04 DA |
756 | } |
757 | EXPORT_SYMBOL(drm_connector_cleanup); | |
758 | ||
cbc7e221 DA |
759 | void drm_connector_unplug_all(struct drm_device *dev) |
760 | { | |
761 | struct drm_connector *connector; | |
762 | ||
763 | /* taking the mode config mutex ends up in a clash with sysfs */ | |
764 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) | |
765 | drm_sysfs_connector_remove(connector); | |
766 | ||
767 | } | |
768 | EXPORT_SYMBOL(drm_connector_unplug_all); | |
769 | ||
6bfc56aa | 770 | int drm_encoder_init(struct drm_device *dev, |
cbc7e221 DA |
771 | struct drm_encoder *encoder, |
772 | const struct drm_encoder_funcs *funcs, | |
773 | int encoder_type) | |
f453ba04 | 774 | { |
6bfc56aa VS |
775 | int ret; |
776 | ||
84849903 | 777 | drm_modeset_lock_all(dev); |
f453ba04 | 778 | |
6bfc56aa VS |
779 | ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); |
780 | if (ret) | |
781 | goto out; | |
f453ba04 | 782 | |
6bfc56aa | 783 | encoder->dev = dev; |
f453ba04 DA |
784 | encoder->encoder_type = encoder_type; |
785 | encoder->funcs = funcs; | |
786 | ||
787 | list_add_tail(&encoder->head, &dev->mode_config.encoder_list); | |
788 | dev->mode_config.num_encoder++; | |
789 | ||
6bfc56aa | 790 | out: |
84849903 | 791 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
792 | |
793 | return ret; | |
f453ba04 DA |
794 | } |
795 | EXPORT_SYMBOL(drm_encoder_init); | |
796 | ||
797 | void drm_encoder_cleanup(struct drm_encoder *encoder) | |
798 | { | |
799 | struct drm_device *dev = encoder->dev; | |
84849903 | 800 | drm_modeset_lock_all(dev); |
f453ba04 DA |
801 | drm_mode_object_put(dev, &encoder->base); |
802 | list_del(&encoder->head); | |
6380c509 | 803 | dev->mode_config.num_encoder--; |
84849903 | 804 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
805 | } |
806 | EXPORT_SYMBOL(drm_encoder_cleanup); | |
807 | ||
8cf5c917 JB |
808 | int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, |
809 | unsigned long possible_crtcs, | |
810 | const struct drm_plane_funcs *funcs, | |
0a7eb243 RC |
811 | const uint32_t *formats, uint32_t format_count, |
812 | bool priv) | |
8cf5c917 | 813 | { |
6bfc56aa VS |
814 | int ret; |
815 | ||
84849903 | 816 | drm_modeset_lock_all(dev); |
8cf5c917 | 817 | |
6bfc56aa VS |
818 | ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); |
819 | if (ret) | |
820 | goto out; | |
821 | ||
4d93914a | 822 | plane->base.properties = &plane->properties; |
8cf5c917 | 823 | plane->dev = dev; |
8cf5c917 JB |
824 | plane->funcs = funcs; |
825 | plane->format_types = kmalloc(sizeof(uint32_t) * format_count, | |
826 | GFP_KERNEL); | |
827 | if (!plane->format_types) { | |
828 | DRM_DEBUG_KMS("out of memory when allocating plane\n"); | |
829 | drm_mode_object_put(dev, &plane->base); | |
6bfc56aa VS |
830 | ret = -ENOMEM; |
831 | goto out; | |
8cf5c917 JB |
832 | } |
833 | ||
308e5bcb | 834 | memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); |
8cf5c917 JB |
835 | plane->format_count = format_count; |
836 | plane->possible_crtcs = possible_crtcs; | |
837 | ||
0a7eb243 RC |
838 | /* private planes are not exposed to userspace, but depending on |
839 | * display hardware, might be convenient to allow sharing programming | |
840 | * for the scanout engine with the crtc implementation. | |
841 | */ | |
842 | if (!priv) { | |
843 | list_add_tail(&plane->head, &dev->mode_config.plane_list); | |
844 | dev->mode_config.num_plane++; | |
845 | } else { | |
846 | INIT_LIST_HEAD(&plane->head); | |
847 | } | |
8cf5c917 | 848 | |
6bfc56aa | 849 | out: |
84849903 | 850 | drm_modeset_unlock_all(dev); |
8cf5c917 | 851 | |
6bfc56aa | 852 | return ret; |
8cf5c917 JB |
853 | } |
854 | EXPORT_SYMBOL(drm_plane_init); | |
855 | ||
856 | void drm_plane_cleanup(struct drm_plane *plane) | |
857 | { | |
858 | struct drm_device *dev = plane->dev; | |
859 | ||
84849903 | 860 | drm_modeset_lock_all(dev); |
8cf5c917 JB |
861 | kfree(plane->format_types); |
862 | drm_mode_object_put(dev, &plane->base); | |
0a7eb243 RC |
863 | /* if not added to a list, it must be a private plane */ |
864 | if (!list_empty(&plane->head)) { | |
865 | list_del(&plane->head); | |
866 | dev->mode_config.num_plane--; | |
867 | } | |
84849903 | 868 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
869 | } |
870 | EXPORT_SYMBOL(drm_plane_cleanup); | |
871 | ||
f453ba04 DA |
872 | /** |
873 | * drm_mode_create - create a new display mode | |
874 | * @dev: DRM device | |
875 | * | |
f453ba04 DA |
876 | * Create a new drm_display_mode, give it an ID, and return it. |
877 | * | |
878 | * RETURNS: | |
879 | * Pointer to new mode on success, NULL on error. | |
880 | */ | |
881 | struct drm_display_mode *drm_mode_create(struct drm_device *dev) | |
882 | { | |
883 | struct drm_display_mode *nmode; | |
884 | ||
885 | nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL); | |
886 | if (!nmode) | |
887 | return NULL; | |
888 | ||
6bfc56aa VS |
889 | if (drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE)) { |
890 | kfree(nmode); | |
891 | return NULL; | |
892 | } | |
893 | ||
f453ba04 DA |
894 | return nmode; |
895 | } | |
896 | EXPORT_SYMBOL(drm_mode_create); | |
897 | ||
898 | /** | |
899 | * drm_mode_destroy - remove a mode | |
900 | * @dev: DRM device | |
901 | * @mode: mode to remove | |
902 | * | |
f453ba04 DA |
903 | * Free @mode's unique identifier, then free it. |
904 | */ | |
905 | void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode) | |
906 | { | |
ee34ab5b VS |
907 | if (!mode) |
908 | return; | |
909 | ||
f453ba04 DA |
910 | drm_mode_object_put(dev, &mode->base); |
911 | ||
912 | kfree(mode); | |
913 | } | |
914 | EXPORT_SYMBOL(drm_mode_destroy); | |
915 | ||
916 | static int drm_mode_create_standard_connector_properties(struct drm_device *dev) | |
917 | { | |
918 | struct drm_property *edid; | |
919 | struct drm_property *dpms; | |
f453ba04 DA |
920 | |
921 | /* | |
922 | * Standard properties (apply to all connectors) | |
923 | */ | |
924 | edid = drm_property_create(dev, DRM_MODE_PROP_BLOB | | |
925 | DRM_MODE_PROP_IMMUTABLE, | |
926 | "EDID", 0); | |
927 | dev->mode_config.edid_property = edid; | |
928 | ||
4a67d391 SH |
929 | dpms = drm_property_create_enum(dev, 0, |
930 | "DPMS", drm_dpms_enum_list, | |
931 | ARRAY_SIZE(drm_dpms_enum_list)); | |
f453ba04 DA |
932 | dev->mode_config.dpms_property = dpms; |
933 | ||
934 | return 0; | |
935 | } | |
936 | ||
937 | /** | |
938 | * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties | |
939 | * @dev: DRM device | |
940 | * | |
941 | * Called by a driver the first time a DVI-I connector is made. | |
942 | */ | |
943 | int drm_mode_create_dvi_i_properties(struct drm_device *dev) | |
944 | { | |
945 | struct drm_property *dvi_i_selector; | |
946 | struct drm_property *dvi_i_subconnector; | |
f453ba04 DA |
947 | |
948 | if (dev->mode_config.dvi_i_select_subconnector_property) | |
949 | return 0; | |
950 | ||
951 | dvi_i_selector = | |
4a67d391 | 952 | drm_property_create_enum(dev, 0, |
f453ba04 | 953 | "select subconnector", |
4a67d391 | 954 | drm_dvi_i_select_enum_list, |
f453ba04 | 955 | ARRAY_SIZE(drm_dvi_i_select_enum_list)); |
f453ba04 DA |
956 | dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; |
957 | ||
4a67d391 | 958 | dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
f453ba04 | 959 | "subconnector", |
4a67d391 | 960 | drm_dvi_i_subconnector_enum_list, |
f453ba04 | 961 | ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); |
f453ba04 DA |
962 | dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; |
963 | ||
964 | return 0; | |
965 | } | |
966 | EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); | |
967 | ||
968 | /** | |
969 | * drm_create_tv_properties - create TV specific connector properties | |
970 | * @dev: DRM device | |
971 | * @num_modes: number of different TV formats (modes) supported | |
972 | * @modes: array of pointers to strings containing name of each format | |
973 | * | |
974 | * Called by a driver's TV initialization routine, this function creates | |
975 | * the TV specific connector properties for a given device. Caller is | |
976 | * responsible for allocating a list of format names and passing them to | |
977 | * this routine. | |
978 | */ | |
979 | int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes, | |
980 | char *modes[]) | |
981 | { | |
982 | struct drm_property *tv_selector; | |
983 | struct drm_property *tv_subconnector; | |
984 | int i; | |
985 | ||
986 | if (dev->mode_config.tv_select_subconnector_property) | |
987 | return 0; | |
988 | ||
989 | /* | |
990 | * Basic connector properties | |
991 | */ | |
4a67d391 | 992 | tv_selector = drm_property_create_enum(dev, 0, |
f453ba04 | 993 | "select subconnector", |
4a67d391 | 994 | drm_tv_select_enum_list, |
f453ba04 | 995 | ARRAY_SIZE(drm_tv_select_enum_list)); |
f453ba04 DA |
996 | dev->mode_config.tv_select_subconnector_property = tv_selector; |
997 | ||
998 | tv_subconnector = | |
4a67d391 SH |
999 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
1000 | "subconnector", | |
1001 | drm_tv_subconnector_enum_list, | |
f453ba04 | 1002 | ARRAY_SIZE(drm_tv_subconnector_enum_list)); |
f453ba04 DA |
1003 | dev->mode_config.tv_subconnector_property = tv_subconnector; |
1004 | ||
1005 | /* | |
1006 | * Other, TV specific properties: margins & TV modes. | |
1007 | */ | |
1008 | dev->mode_config.tv_left_margin_property = | |
d9bc3c02 | 1009 | drm_property_create_range(dev, 0, "left margin", 0, 100); |
f453ba04 DA |
1010 | |
1011 | dev->mode_config.tv_right_margin_property = | |
d9bc3c02 | 1012 | drm_property_create_range(dev, 0, "right margin", 0, 100); |
f453ba04 DA |
1013 | |
1014 | dev->mode_config.tv_top_margin_property = | |
d9bc3c02 | 1015 | drm_property_create_range(dev, 0, "top margin", 0, 100); |
f453ba04 DA |
1016 | |
1017 | dev->mode_config.tv_bottom_margin_property = | |
d9bc3c02 | 1018 | drm_property_create_range(dev, 0, "bottom margin", 0, 100); |
f453ba04 DA |
1019 | |
1020 | dev->mode_config.tv_mode_property = | |
1021 | drm_property_create(dev, DRM_MODE_PROP_ENUM, | |
1022 | "mode", num_modes); | |
1023 | for (i = 0; i < num_modes; i++) | |
1024 | drm_property_add_enum(dev->mode_config.tv_mode_property, i, | |
1025 | i, modes[i]); | |
1026 | ||
b6b7902e | 1027 | dev->mode_config.tv_brightness_property = |
d9bc3c02 | 1028 | drm_property_create_range(dev, 0, "brightness", 0, 100); |
b6b7902e FJ |
1029 | |
1030 | dev->mode_config.tv_contrast_property = | |
d9bc3c02 | 1031 | drm_property_create_range(dev, 0, "contrast", 0, 100); |
b6b7902e FJ |
1032 | |
1033 | dev->mode_config.tv_flicker_reduction_property = | |
d9bc3c02 | 1034 | drm_property_create_range(dev, 0, "flicker reduction", 0, 100); |
b6b7902e | 1035 | |
a75f0236 | 1036 | dev->mode_config.tv_overscan_property = |
d9bc3c02 | 1037 | drm_property_create_range(dev, 0, "overscan", 0, 100); |
a75f0236 FJ |
1038 | |
1039 | dev->mode_config.tv_saturation_property = | |
d9bc3c02 | 1040 | drm_property_create_range(dev, 0, "saturation", 0, 100); |
a75f0236 FJ |
1041 | |
1042 | dev->mode_config.tv_hue_property = | |
d9bc3c02 | 1043 | drm_property_create_range(dev, 0, "hue", 0, 100); |
a75f0236 | 1044 | |
f453ba04 DA |
1045 | return 0; |
1046 | } | |
1047 | EXPORT_SYMBOL(drm_mode_create_tv_properties); | |
1048 | ||
1049 | /** | |
1050 | * drm_mode_create_scaling_mode_property - create scaling mode 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_scaling_mode_property(struct drm_device *dev) | |
1057 | { | |
1058 | struct drm_property *scaling_mode; | |
f453ba04 DA |
1059 | |
1060 | if (dev->mode_config.scaling_mode_property) | |
1061 | return 0; | |
1062 | ||
1063 | scaling_mode = | |
4a67d391 SH |
1064 | drm_property_create_enum(dev, 0, "scaling mode", |
1065 | drm_scaling_mode_enum_list, | |
f453ba04 | 1066 | ARRAY_SIZE(drm_scaling_mode_enum_list)); |
f453ba04 DA |
1067 | |
1068 | dev->mode_config.scaling_mode_property = scaling_mode; | |
1069 | ||
1070 | return 0; | |
1071 | } | |
1072 | EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); | |
1073 | ||
1074 | /** | |
1075 | * drm_mode_create_dithering_property - create dithering property | |
1076 | * @dev: DRM device | |
1077 | * | |
1078 | * Called by a driver the first time it's needed, must be attached to desired | |
1079 | * connectors. | |
1080 | */ | |
1081 | int drm_mode_create_dithering_property(struct drm_device *dev) | |
1082 | { | |
1083 | struct drm_property *dithering_mode; | |
f453ba04 DA |
1084 | |
1085 | if (dev->mode_config.dithering_mode_property) | |
1086 | return 0; | |
1087 | ||
1088 | dithering_mode = | |
4a67d391 SH |
1089 | drm_property_create_enum(dev, 0, "dithering", |
1090 | drm_dithering_mode_enum_list, | |
f453ba04 | 1091 | ARRAY_SIZE(drm_dithering_mode_enum_list)); |
f453ba04 DA |
1092 | dev->mode_config.dithering_mode_property = dithering_mode; |
1093 | ||
1094 | return 0; | |
1095 | } | |
1096 | EXPORT_SYMBOL(drm_mode_create_dithering_property); | |
1097 | ||
884840aa JB |
1098 | /** |
1099 | * drm_mode_create_dirty_property - create dirty property | |
1100 | * @dev: DRM device | |
1101 | * | |
1102 | * Called by a driver the first time it's needed, must be attached to desired | |
1103 | * connectors. | |
1104 | */ | |
1105 | int drm_mode_create_dirty_info_property(struct drm_device *dev) | |
1106 | { | |
1107 | struct drm_property *dirty_info; | |
884840aa JB |
1108 | |
1109 | if (dev->mode_config.dirty_info_property) | |
1110 | return 0; | |
1111 | ||
1112 | dirty_info = | |
4a67d391 | 1113 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
884840aa | 1114 | "dirty", |
4a67d391 | 1115 | drm_dirty_info_enum_list, |
884840aa | 1116 | ARRAY_SIZE(drm_dirty_info_enum_list)); |
884840aa JB |
1117 | dev->mode_config.dirty_info_property = dirty_info; |
1118 | ||
1119 | return 0; | |
1120 | } | |
1121 | EXPORT_SYMBOL(drm_mode_create_dirty_info_property); | |
1122 | ||
f453ba04 DA |
1123 | /** |
1124 | * drm_mode_config_init - initialize DRM mode_configuration structure | |
1125 | * @dev: DRM device | |
1126 | * | |
f453ba04 DA |
1127 | * Initialize @dev's mode_config structure, used for tracking the graphics |
1128 | * configuration of @dev. | |
8faf6b18 DV |
1129 | * |
1130 | * Since this initializes the modeset locks, no locking is possible. Which is no | |
1131 | * problem, since this should happen single threaded at init time. It is the | |
1132 | * driver's problem to ensure this guarantee. | |
1133 | * | |
f453ba04 DA |
1134 | */ |
1135 | void drm_mode_config_init(struct drm_device *dev) | |
1136 | { | |
1137 | mutex_init(&dev->mode_config.mutex); | |
ad2563c2 | 1138 | mutex_init(&dev->mode_config.idr_mutex); |
4b096ac1 | 1139 | mutex_init(&dev->mode_config.fb_lock); |
f453ba04 | 1140 | INIT_LIST_HEAD(&dev->mode_config.fb_list); |
f453ba04 DA |
1141 | INIT_LIST_HEAD(&dev->mode_config.crtc_list); |
1142 | INIT_LIST_HEAD(&dev->mode_config.connector_list); | |
1143 | INIT_LIST_HEAD(&dev->mode_config.encoder_list); | |
1144 | INIT_LIST_HEAD(&dev->mode_config.property_list); | |
1145 | INIT_LIST_HEAD(&dev->mode_config.property_blob_list); | |
8cf5c917 | 1146 | INIT_LIST_HEAD(&dev->mode_config.plane_list); |
f453ba04 DA |
1147 | idr_init(&dev->mode_config.crtc_idr); |
1148 | ||
84849903 | 1149 | drm_modeset_lock_all(dev); |
f453ba04 | 1150 | drm_mode_create_standard_connector_properties(dev); |
84849903 | 1151 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1152 | |
1153 | /* Just to be sure */ | |
1154 | dev->mode_config.num_fb = 0; | |
1155 | dev->mode_config.num_connector = 0; | |
1156 | dev->mode_config.num_crtc = 0; | |
1157 | dev->mode_config.num_encoder = 0; | |
f453ba04 DA |
1158 | } |
1159 | EXPORT_SYMBOL(drm_mode_config_init); | |
1160 | ||
1161 | int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group) | |
1162 | { | |
1163 | uint32_t total_objects = 0; | |
1164 | ||
1165 | total_objects += dev->mode_config.num_crtc; | |
1166 | total_objects += dev->mode_config.num_connector; | |
1167 | total_objects += dev->mode_config.num_encoder; | |
1168 | ||
f453ba04 DA |
1169 | group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL); |
1170 | if (!group->id_list) | |
1171 | return -ENOMEM; | |
1172 | ||
1173 | group->num_crtcs = 0; | |
1174 | group->num_connectors = 0; | |
1175 | group->num_encoders = 0; | |
1176 | return 0; | |
1177 | } | |
1178 | ||
1179 | int drm_mode_group_init_legacy_group(struct drm_device *dev, | |
1180 | struct drm_mode_group *group) | |
1181 | { | |
1182 | struct drm_crtc *crtc; | |
1183 | struct drm_encoder *encoder; | |
1184 | struct drm_connector *connector; | |
1185 | int ret; | |
1186 | ||
1187 | if ((ret = drm_mode_group_init(dev, group))) | |
1188 | return ret; | |
1189 | ||
1190 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) | |
1191 | group->id_list[group->num_crtcs++] = crtc->base.id; | |
1192 | ||
1193 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) | |
1194 | group->id_list[group->num_crtcs + group->num_encoders++] = | |
1195 | encoder->base.id; | |
1196 | ||
1197 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) | |
1198 | group->id_list[group->num_crtcs + group->num_encoders + | |
1199 | group->num_connectors++] = connector->base.id; | |
1200 | ||
1201 | return 0; | |
1202 | } | |
9c1dfc55 | 1203 | EXPORT_SYMBOL(drm_mode_group_init_legacy_group); |
f453ba04 DA |
1204 | |
1205 | /** | |
1206 | * drm_mode_config_cleanup - free up DRM mode_config info | |
1207 | * @dev: DRM device | |
1208 | * | |
f453ba04 DA |
1209 | * Free up all the connectors and CRTCs associated with this DRM device, then |
1210 | * free up the framebuffers and associated buffer objects. | |
1211 | * | |
8faf6b18 DV |
1212 | * Note that since this /should/ happen single-threaded at driver/device |
1213 | * teardown time, no locking is required. It's the driver's job to ensure that | |
1214 | * this guarantee actually holds true. | |
1215 | * | |
f453ba04 DA |
1216 | * FIXME: cleanup any dangling user buffer objects too |
1217 | */ | |
1218 | void drm_mode_config_cleanup(struct drm_device *dev) | |
1219 | { | |
1220 | struct drm_connector *connector, *ot; | |
1221 | struct drm_crtc *crtc, *ct; | |
1222 | struct drm_encoder *encoder, *enct; | |
1223 | struct drm_framebuffer *fb, *fbt; | |
1224 | struct drm_property *property, *pt; | |
8cf5c917 | 1225 | struct drm_plane *plane, *plt; |
f453ba04 DA |
1226 | |
1227 | list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, | |
1228 | head) { | |
1229 | encoder->funcs->destroy(encoder); | |
1230 | } | |
1231 | ||
1232 | list_for_each_entry_safe(connector, ot, | |
1233 | &dev->mode_config.connector_list, head) { | |
1234 | connector->funcs->destroy(connector); | |
1235 | } | |
1236 | ||
1237 | list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, | |
1238 | head) { | |
1239 | drm_property_destroy(dev, property); | |
1240 | } | |
1241 | ||
2b677e8c DV |
1242 | /* |
1243 | * Single-threaded teardown context, so it's not required to grab the | |
4b096ac1 | 1244 | * fb_lock to protect against concurrent fb_list access. Contrary, it |
2b677e8c DV |
1245 | * would actually deadlock with the drm_framebuffer_cleanup function. |
1246 | * | |
1247 | * Also, if there are any framebuffers left, that's a driver leak now, | |
1248 | * so politely WARN about this. | |
1249 | */ | |
1250 | WARN_ON(!list_empty(&dev->mode_config.fb_list)); | |
f453ba04 | 1251 | list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { |
f7eff60e | 1252 | drm_framebuffer_remove(fb); |
f453ba04 DA |
1253 | } |
1254 | ||
8cf5c917 JB |
1255 | list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, |
1256 | head) { | |
1257 | plane->funcs->destroy(plane); | |
1258 | } | |
59ce062e | 1259 | |
3184009c CW |
1260 | list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { |
1261 | crtc->funcs->destroy(crtc); | |
1262 | } | |
1263 | ||
59ce062e | 1264 | idr_destroy(&dev->mode_config.crtc_idr); |
f453ba04 DA |
1265 | } |
1266 | EXPORT_SYMBOL(drm_mode_config_cleanup); | |
1267 | ||
f453ba04 DA |
1268 | /** |
1269 | * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo | |
1270 | * @out: drm_mode_modeinfo struct to return to the user | |
1271 | * @in: drm_display_mode to use | |
1272 | * | |
f453ba04 DA |
1273 | * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to |
1274 | * the user. | |
1275 | */ | |
93bbf6db VS |
1276 | static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out, |
1277 | const struct drm_display_mode *in) | |
f453ba04 | 1278 | { |
e36fae38 VS |
1279 | WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX || |
1280 | in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX || | |
1281 | in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX || | |
1282 | in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX || | |
1283 | in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX, | |
1284 | "timing values too large for mode info\n"); | |
1285 | ||
f453ba04 DA |
1286 | out->clock = in->clock; |
1287 | out->hdisplay = in->hdisplay; | |
1288 | out->hsync_start = in->hsync_start; | |
1289 | out->hsync_end = in->hsync_end; | |
1290 | out->htotal = in->htotal; | |
1291 | out->hskew = in->hskew; | |
1292 | out->vdisplay = in->vdisplay; | |
1293 | out->vsync_start = in->vsync_start; | |
1294 | out->vsync_end = in->vsync_end; | |
1295 | out->vtotal = in->vtotal; | |
1296 | out->vscan = in->vscan; | |
1297 | out->vrefresh = in->vrefresh; | |
1298 | out->flags = in->flags; | |
1299 | out->type = in->type; | |
1300 | strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); | |
1301 | out->name[DRM_DISPLAY_MODE_LEN-1] = 0; | |
1302 | } | |
1303 | ||
1304 | /** | |
1305 | * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode | |
1306 | * @out: drm_display_mode to return to the user | |
1307 | * @in: drm_mode_modeinfo to use | |
1308 | * | |
f453ba04 DA |
1309 | * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to |
1310 | * the caller. | |
90367bf6 VS |
1311 | * |
1312 | * RETURNS: | |
1313 | * Zero on success, errno on failure. | |
f453ba04 | 1314 | */ |
93bbf6db VS |
1315 | static int drm_crtc_convert_umode(struct drm_display_mode *out, |
1316 | const struct drm_mode_modeinfo *in) | |
f453ba04 | 1317 | { |
90367bf6 VS |
1318 | if (in->clock > INT_MAX || in->vrefresh > INT_MAX) |
1319 | return -ERANGE; | |
1320 | ||
f453ba04 DA |
1321 | out->clock = in->clock; |
1322 | out->hdisplay = in->hdisplay; | |
1323 | out->hsync_start = in->hsync_start; | |
1324 | out->hsync_end = in->hsync_end; | |
1325 | out->htotal = in->htotal; | |
1326 | out->hskew = in->hskew; | |
1327 | out->vdisplay = in->vdisplay; | |
1328 | out->vsync_start = in->vsync_start; | |
1329 | out->vsync_end = in->vsync_end; | |
1330 | out->vtotal = in->vtotal; | |
1331 | out->vscan = in->vscan; | |
1332 | out->vrefresh = in->vrefresh; | |
1333 | out->flags = in->flags; | |
1334 | out->type = in->type; | |
1335 | strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); | |
1336 | out->name[DRM_DISPLAY_MODE_LEN-1] = 0; | |
90367bf6 VS |
1337 | |
1338 | return 0; | |
f453ba04 DA |
1339 | } |
1340 | ||
1341 | /** | |
1342 | * drm_mode_getresources - get graphics configuration | |
065a50ed DV |
1343 | * @dev: drm device for the ioctl |
1344 | * @data: data pointer for the ioctl | |
1345 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1346 | * |
f453ba04 DA |
1347 | * Construct a set of configuration description structures and return |
1348 | * them to the user, including CRTC, connector and framebuffer configuration. | |
1349 | * | |
1350 | * Called by the user via ioctl. | |
1351 | * | |
1352 | * RETURNS: | |
1353 | * Zero on success, errno on failure. | |
1354 | */ | |
1355 | int drm_mode_getresources(struct drm_device *dev, void *data, | |
1356 | struct drm_file *file_priv) | |
1357 | { | |
1358 | struct drm_mode_card_res *card_res = data; | |
1359 | struct list_head *lh; | |
1360 | struct drm_framebuffer *fb; | |
1361 | struct drm_connector *connector; | |
1362 | struct drm_crtc *crtc; | |
1363 | struct drm_encoder *encoder; | |
1364 | int ret = 0; | |
1365 | int connector_count = 0; | |
1366 | int crtc_count = 0; | |
1367 | int fb_count = 0; | |
1368 | int encoder_count = 0; | |
1369 | int copied = 0, i; | |
1370 | uint32_t __user *fb_id; | |
1371 | uint32_t __user *crtc_id; | |
1372 | uint32_t __user *connector_id; | |
1373 | uint32_t __user *encoder_id; | |
1374 | struct drm_mode_group *mode_group; | |
1375 | ||
fb3b06c8 DA |
1376 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1377 | return -EINVAL; | |
1378 | ||
f453ba04 | 1379 | |
4b096ac1 | 1380 | mutex_lock(&file_priv->fbs_lock); |
f453ba04 DA |
1381 | /* |
1382 | * For the non-control nodes we need to limit the list of resources | |
1383 | * by IDs in the group list for this node | |
1384 | */ | |
1385 | list_for_each(lh, &file_priv->fbs) | |
1386 | fb_count++; | |
1387 | ||
4b096ac1 DV |
1388 | /* handle this in 4 parts */ |
1389 | /* FBs */ | |
1390 | if (card_res->count_fbs >= fb_count) { | |
1391 | copied = 0; | |
1392 | fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; | |
1393 | list_for_each_entry(fb, &file_priv->fbs, filp_head) { | |
1394 | if (put_user(fb->base.id, fb_id + copied)) { | |
1395 | mutex_unlock(&file_priv->fbs_lock); | |
1396 | return -EFAULT; | |
1397 | } | |
1398 | copied++; | |
1399 | } | |
1400 | } | |
1401 | card_res->count_fbs = fb_count; | |
1402 | mutex_unlock(&file_priv->fbs_lock); | |
1403 | ||
1404 | drm_modeset_lock_all(dev); | |
f453ba04 DA |
1405 | mode_group = &file_priv->master->minor->mode_group; |
1406 | if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { | |
1407 | ||
1408 | list_for_each(lh, &dev->mode_config.crtc_list) | |
1409 | crtc_count++; | |
1410 | ||
1411 | list_for_each(lh, &dev->mode_config.connector_list) | |
1412 | connector_count++; | |
1413 | ||
1414 | list_for_each(lh, &dev->mode_config.encoder_list) | |
1415 | encoder_count++; | |
1416 | } else { | |
1417 | ||
1418 | crtc_count = mode_group->num_crtcs; | |
1419 | connector_count = mode_group->num_connectors; | |
1420 | encoder_count = mode_group->num_encoders; | |
1421 | } | |
1422 | ||
1423 | card_res->max_height = dev->mode_config.max_height; | |
1424 | card_res->min_height = dev->mode_config.min_height; | |
1425 | card_res->max_width = dev->mode_config.max_width; | |
1426 | card_res->min_width = dev->mode_config.min_width; | |
1427 | ||
f453ba04 DA |
1428 | /* CRTCs */ |
1429 | if (card_res->count_crtcs >= crtc_count) { | |
1430 | copied = 0; | |
1431 | crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; | |
1432 | if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { | |
1433 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, | |
1434 | head) { | |
9440106b | 1435 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
f453ba04 DA |
1436 | if (put_user(crtc->base.id, crtc_id + copied)) { |
1437 | ret = -EFAULT; | |
1438 | goto out; | |
1439 | } | |
1440 | copied++; | |
1441 | } | |
1442 | } else { | |
1443 | for (i = 0; i < mode_group->num_crtcs; i++) { | |
1444 | if (put_user(mode_group->id_list[i], | |
1445 | crtc_id + copied)) { | |
1446 | ret = -EFAULT; | |
1447 | goto out; | |
1448 | } | |
1449 | copied++; | |
1450 | } | |
1451 | } | |
1452 | } | |
1453 | card_res->count_crtcs = crtc_count; | |
1454 | ||
1455 | /* Encoders */ | |
1456 | if (card_res->count_encoders >= encoder_count) { | |
1457 | copied = 0; | |
1458 | encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; | |
1459 | if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { | |
1460 | list_for_each_entry(encoder, | |
1461 | &dev->mode_config.encoder_list, | |
1462 | head) { | |
9440106b JG |
1463 | DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id, |
1464 | drm_get_encoder_name(encoder)); | |
f453ba04 DA |
1465 | if (put_user(encoder->base.id, encoder_id + |
1466 | copied)) { | |
1467 | ret = -EFAULT; | |
1468 | goto out; | |
1469 | } | |
1470 | copied++; | |
1471 | } | |
1472 | } else { | |
1473 | for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) { | |
1474 | if (put_user(mode_group->id_list[i], | |
1475 | encoder_id + copied)) { | |
1476 | ret = -EFAULT; | |
1477 | goto out; | |
1478 | } | |
1479 | copied++; | |
1480 | } | |
1481 | ||
1482 | } | |
1483 | } | |
1484 | card_res->count_encoders = encoder_count; | |
1485 | ||
1486 | /* Connectors */ | |
1487 | if (card_res->count_connectors >= connector_count) { | |
1488 | copied = 0; | |
1489 | connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; | |
1490 | if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { | |
1491 | list_for_each_entry(connector, | |
1492 | &dev->mode_config.connector_list, | |
1493 | head) { | |
9440106b JG |
1494 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
1495 | connector->base.id, | |
1496 | drm_get_connector_name(connector)); | |
f453ba04 DA |
1497 | if (put_user(connector->base.id, |
1498 | connector_id + copied)) { | |
1499 | ret = -EFAULT; | |
1500 | goto out; | |
1501 | } | |
1502 | copied++; | |
1503 | } | |
1504 | } else { | |
1505 | int start = mode_group->num_crtcs + | |
1506 | mode_group->num_encoders; | |
1507 | for (i = start; i < start + mode_group->num_connectors; i++) { | |
1508 | if (put_user(mode_group->id_list[i], | |
1509 | connector_id + copied)) { | |
1510 | ret = -EFAULT; | |
1511 | goto out; | |
1512 | } | |
1513 | copied++; | |
1514 | } | |
1515 | } | |
1516 | } | |
1517 | card_res->count_connectors = connector_count; | |
1518 | ||
9440106b | 1519 | DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs, |
f453ba04 DA |
1520 | card_res->count_connectors, card_res->count_encoders); |
1521 | ||
1522 | out: | |
84849903 | 1523 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1524 | return ret; |
1525 | } | |
1526 | ||
1527 | /** | |
1528 | * drm_mode_getcrtc - get CRTC configuration | |
065a50ed DV |
1529 | * @dev: drm device for the ioctl |
1530 | * @data: data pointer for the ioctl | |
1531 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1532 | * |
f453ba04 DA |
1533 | * Construct a CRTC configuration structure to return to the user. |
1534 | * | |
1535 | * Called by the user via ioctl. | |
1536 | * | |
1537 | * RETURNS: | |
1538 | * Zero on success, errno on failure. | |
1539 | */ | |
1540 | int drm_mode_getcrtc(struct drm_device *dev, | |
1541 | void *data, struct drm_file *file_priv) | |
1542 | { | |
1543 | struct drm_mode_crtc *crtc_resp = data; | |
1544 | struct drm_crtc *crtc; | |
1545 | struct drm_mode_object *obj; | |
1546 | int ret = 0; | |
1547 | ||
fb3b06c8 DA |
1548 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1549 | return -EINVAL; | |
1550 | ||
84849903 | 1551 | drm_modeset_lock_all(dev); |
f453ba04 DA |
1552 | |
1553 | obj = drm_mode_object_find(dev, crtc_resp->crtc_id, | |
1554 | DRM_MODE_OBJECT_CRTC); | |
1555 | if (!obj) { | |
1556 | ret = -EINVAL; | |
1557 | goto out; | |
1558 | } | |
1559 | crtc = obj_to_crtc(obj); | |
1560 | ||
1561 | crtc_resp->x = crtc->x; | |
1562 | crtc_resp->y = crtc->y; | |
1563 | crtc_resp->gamma_size = crtc->gamma_size; | |
1564 | if (crtc->fb) | |
1565 | crtc_resp->fb_id = crtc->fb->base.id; | |
1566 | else | |
1567 | crtc_resp->fb_id = 0; | |
1568 | ||
1569 | if (crtc->enabled) { | |
1570 | ||
1571 | drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode); | |
1572 | crtc_resp->mode_valid = 1; | |
1573 | ||
1574 | } else { | |
1575 | crtc_resp->mode_valid = 0; | |
1576 | } | |
1577 | ||
1578 | out: | |
84849903 | 1579 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1580 | return ret; |
1581 | } | |
1582 | ||
1583 | /** | |
1584 | * drm_mode_getconnector - get connector configuration | |
065a50ed DV |
1585 | * @dev: drm device for the ioctl |
1586 | * @data: data pointer for the ioctl | |
1587 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1588 | * |
f453ba04 DA |
1589 | * Construct a connector configuration structure to return to the user. |
1590 | * | |
1591 | * Called by the user via ioctl. | |
1592 | * | |
1593 | * RETURNS: | |
1594 | * Zero on success, errno on failure. | |
1595 | */ | |
1596 | int drm_mode_getconnector(struct drm_device *dev, void *data, | |
1597 | struct drm_file *file_priv) | |
1598 | { | |
1599 | struct drm_mode_get_connector *out_resp = data; | |
1600 | struct drm_mode_object *obj; | |
1601 | struct drm_connector *connector; | |
1602 | struct drm_display_mode *mode; | |
1603 | int mode_count = 0; | |
1604 | int props_count = 0; | |
1605 | int encoders_count = 0; | |
1606 | int ret = 0; | |
1607 | int copied = 0; | |
1608 | int i; | |
1609 | struct drm_mode_modeinfo u_mode; | |
1610 | struct drm_mode_modeinfo __user *mode_ptr; | |
1611 | uint32_t __user *prop_ptr; | |
1612 | uint64_t __user *prop_values; | |
1613 | uint32_t __user *encoder_ptr; | |
1614 | ||
fb3b06c8 DA |
1615 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1616 | return -EINVAL; | |
1617 | ||
f453ba04 DA |
1618 | memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); |
1619 | ||
9440106b | 1620 | DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id); |
f453ba04 | 1621 | |
7b24056b | 1622 | mutex_lock(&dev->mode_config.mutex); |
f453ba04 DA |
1623 | |
1624 | obj = drm_mode_object_find(dev, out_resp->connector_id, | |
1625 | DRM_MODE_OBJECT_CONNECTOR); | |
1626 | if (!obj) { | |
1627 | ret = -EINVAL; | |
1628 | goto out; | |
1629 | } | |
1630 | connector = obj_to_connector(obj); | |
1631 | ||
7f88a9be | 1632 | props_count = connector->properties.count; |
f453ba04 DA |
1633 | |
1634 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { | |
1635 | if (connector->encoder_ids[i] != 0) { | |
1636 | encoders_count++; | |
1637 | } | |
1638 | } | |
1639 | ||
1640 | if (out_resp->count_modes == 0) { | |
1641 | connector->funcs->fill_modes(connector, | |
1642 | dev->mode_config.max_width, | |
1643 | dev->mode_config.max_height); | |
1644 | } | |
1645 | ||
1646 | /* delayed so we get modes regardless of pre-fill_modes state */ | |
1647 | list_for_each_entry(mode, &connector->modes, head) | |
1648 | mode_count++; | |
1649 | ||
1650 | out_resp->connector_id = connector->base.id; | |
1651 | out_resp->connector_type = connector->connector_type; | |
1652 | out_resp->connector_type_id = connector->connector_type_id; | |
1653 | out_resp->mm_width = connector->display_info.width_mm; | |
1654 | out_resp->mm_height = connector->display_info.height_mm; | |
1655 | out_resp->subpixel = connector->display_info.subpixel_order; | |
1656 | out_resp->connection = connector->status; | |
1657 | if (connector->encoder) | |
1658 | out_resp->encoder_id = connector->encoder->base.id; | |
1659 | else | |
1660 | out_resp->encoder_id = 0; | |
1661 | ||
1662 | /* | |
1663 | * This ioctl is called twice, once to determine how much space is | |
1664 | * needed, and the 2nd time to fill it. | |
1665 | */ | |
1666 | if ((out_resp->count_modes >= mode_count) && mode_count) { | |
1667 | copied = 0; | |
81f6c7f8 | 1668 | mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; |
f453ba04 DA |
1669 | list_for_each_entry(mode, &connector->modes, head) { |
1670 | drm_crtc_convert_to_umode(&u_mode, mode); | |
1671 | if (copy_to_user(mode_ptr + copied, | |
1672 | &u_mode, sizeof(u_mode))) { | |
1673 | ret = -EFAULT; | |
1674 | goto out; | |
1675 | } | |
1676 | copied++; | |
1677 | } | |
1678 | } | |
1679 | out_resp->count_modes = mode_count; | |
1680 | ||
1681 | if ((out_resp->count_props >= props_count) && props_count) { | |
1682 | copied = 0; | |
81f6c7f8 VS |
1683 | prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr); |
1684 | prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr); | |
7f88a9be PZ |
1685 | for (i = 0; i < connector->properties.count; i++) { |
1686 | if (put_user(connector->properties.ids[i], | |
1687 | prop_ptr + copied)) { | |
1688 | ret = -EFAULT; | |
1689 | goto out; | |
1690 | } | |
f453ba04 | 1691 | |
7f88a9be PZ |
1692 | if (put_user(connector->properties.values[i], |
1693 | prop_values + copied)) { | |
1694 | ret = -EFAULT; | |
1695 | goto out; | |
f453ba04 | 1696 | } |
7f88a9be | 1697 | copied++; |
f453ba04 DA |
1698 | } |
1699 | } | |
1700 | out_resp->count_props = props_count; | |
1701 | ||
1702 | if ((out_resp->count_encoders >= encoders_count) && encoders_count) { | |
1703 | copied = 0; | |
81f6c7f8 | 1704 | encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); |
f453ba04 DA |
1705 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
1706 | if (connector->encoder_ids[i] != 0) { | |
1707 | if (put_user(connector->encoder_ids[i], | |
1708 | encoder_ptr + copied)) { | |
1709 | ret = -EFAULT; | |
1710 | goto out; | |
1711 | } | |
1712 | copied++; | |
1713 | } | |
1714 | } | |
1715 | } | |
1716 | out_resp->count_encoders = encoders_count; | |
1717 | ||
1718 | out: | |
7b24056b DV |
1719 | mutex_unlock(&dev->mode_config.mutex); |
1720 | ||
f453ba04 DA |
1721 | return ret; |
1722 | } | |
1723 | ||
1724 | int drm_mode_getencoder(struct drm_device *dev, void *data, | |
1725 | struct drm_file *file_priv) | |
1726 | { | |
1727 | struct drm_mode_get_encoder *enc_resp = data; | |
1728 | struct drm_mode_object *obj; | |
1729 | struct drm_encoder *encoder; | |
1730 | int ret = 0; | |
1731 | ||
fb3b06c8 DA |
1732 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1733 | return -EINVAL; | |
1734 | ||
84849903 | 1735 | drm_modeset_lock_all(dev); |
f453ba04 DA |
1736 | obj = drm_mode_object_find(dev, enc_resp->encoder_id, |
1737 | DRM_MODE_OBJECT_ENCODER); | |
1738 | if (!obj) { | |
1739 | ret = -EINVAL; | |
1740 | goto out; | |
1741 | } | |
1742 | encoder = obj_to_encoder(obj); | |
1743 | ||
1744 | if (encoder->crtc) | |
1745 | enc_resp->crtc_id = encoder->crtc->base.id; | |
1746 | else | |
1747 | enc_resp->crtc_id = 0; | |
1748 | enc_resp->encoder_type = encoder->encoder_type; | |
1749 | enc_resp->encoder_id = encoder->base.id; | |
1750 | enc_resp->possible_crtcs = encoder->possible_crtcs; | |
1751 | enc_resp->possible_clones = encoder->possible_clones; | |
1752 | ||
1753 | out: | |
84849903 | 1754 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1755 | return ret; |
1756 | } | |
1757 | ||
8cf5c917 JB |
1758 | /** |
1759 | * drm_mode_getplane_res - get plane info | |
1760 | * @dev: DRM device | |
1761 | * @data: ioctl data | |
1762 | * @file_priv: DRM file info | |
1763 | * | |
1764 | * Return an plane count and set of IDs. | |
1765 | */ | |
1766 | int drm_mode_getplane_res(struct drm_device *dev, void *data, | |
1767 | struct drm_file *file_priv) | |
1768 | { | |
1769 | struct drm_mode_get_plane_res *plane_resp = data; | |
1770 | struct drm_mode_config *config; | |
1771 | struct drm_plane *plane; | |
1772 | uint32_t __user *plane_ptr; | |
1773 | int copied = 0, ret = 0; | |
1774 | ||
1775 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
1776 | return -EINVAL; | |
1777 | ||
84849903 | 1778 | drm_modeset_lock_all(dev); |
8cf5c917 JB |
1779 | config = &dev->mode_config; |
1780 | ||
1781 | /* | |
1782 | * This ioctl is called twice, once to determine how much space is | |
1783 | * needed, and the 2nd time to fill it. | |
1784 | */ | |
1785 | if (config->num_plane && | |
1786 | (plane_resp->count_planes >= config->num_plane)) { | |
81f6c7f8 | 1787 | plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; |
8cf5c917 JB |
1788 | |
1789 | list_for_each_entry(plane, &config->plane_list, head) { | |
1790 | if (put_user(plane->base.id, plane_ptr + copied)) { | |
1791 | ret = -EFAULT; | |
1792 | goto out; | |
1793 | } | |
1794 | copied++; | |
1795 | } | |
1796 | } | |
1797 | plane_resp->count_planes = config->num_plane; | |
1798 | ||
1799 | out: | |
84849903 | 1800 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
1801 | return ret; |
1802 | } | |
1803 | ||
1804 | /** | |
1805 | * drm_mode_getplane - get plane info | |
1806 | * @dev: DRM device | |
1807 | * @data: ioctl data | |
1808 | * @file_priv: DRM file info | |
1809 | * | |
1810 | * Return plane info, including formats supported, gamma size, any | |
1811 | * current fb, etc. | |
1812 | */ | |
1813 | int drm_mode_getplane(struct drm_device *dev, void *data, | |
1814 | struct drm_file *file_priv) | |
1815 | { | |
1816 | struct drm_mode_get_plane *plane_resp = data; | |
1817 | struct drm_mode_object *obj; | |
1818 | struct drm_plane *plane; | |
1819 | uint32_t __user *format_ptr; | |
1820 | int ret = 0; | |
1821 | ||
1822 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
1823 | return -EINVAL; | |
1824 | ||
84849903 | 1825 | drm_modeset_lock_all(dev); |
8cf5c917 JB |
1826 | obj = drm_mode_object_find(dev, plane_resp->plane_id, |
1827 | DRM_MODE_OBJECT_PLANE); | |
1828 | if (!obj) { | |
1829 | ret = -ENOENT; | |
1830 | goto out; | |
1831 | } | |
1832 | plane = obj_to_plane(obj); | |
1833 | ||
1834 | if (plane->crtc) | |
1835 | plane_resp->crtc_id = plane->crtc->base.id; | |
1836 | else | |
1837 | plane_resp->crtc_id = 0; | |
1838 | ||
1839 | if (plane->fb) | |
1840 | plane_resp->fb_id = plane->fb->base.id; | |
1841 | else | |
1842 | plane_resp->fb_id = 0; | |
1843 | ||
1844 | plane_resp->plane_id = plane->base.id; | |
1845 | plane_resp->possible_crtcs = plane->possible_crtcs; | |
1846 | plane_resp->gamma_size = plane->gamma_size; | |
1847 | ||
1848 | /* | |
1849 | * This ioctl is called twice, once to determine how much space is | |
1850 | * needed, and the 2nd time to fill it. | |
1851 | */ | |
1852 | if (plane->format_count && | |
1853 | (plane_resp->count_format_types >= plane->format_count)) { | |
81f6c7f8 | 1854 | format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; |
8cf5c917 JB |
1855 | if (copy_to_user(format_ptr, |
1856 | plane->format_types, | |
1857 | sizeof(uint32_t) * plane->format_count)) { | |
1858 | ret = -EFAULT; | |
1859 | goto out; | |
1860 | } | |
1861 | } | |
1862 | plane_resp->count_format_types = plane->format_count; | |
1863 | ||
1864 | out: | |
84849903 | 1865 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
1866 | return ret; |
1867 | } | |
1868 | ||
1869 | /** | |
1870 | * drm_mode_setplane - set up or tear down an plane | |
1871 | * @dev: DRM device | |
1872 | * @data: ioctl data* | |
065a50ed | 1873 | * @file_priv: DRM file info |
8cf5c917 JB |
1874 | * |
1875 | * Set plane info, including placement, fb, scaling, and other factors. | |
1876 | * Or pass a NULL fb to disable. | |
1877 | */ | |
1878 | int drm_mode_setplane(struct drm_device *dev, void *data, | |
1879 | struct drm_file *file_priv) | |
1880 | { | |
1881 | struct drm_mode_set_plane *plane_req = data; | |
1882 | struct drm_mode_object *obj; | |
1883 | struct drm_plane *plane; | |
1884 | struct drm_crtc *crtc; | |
6c2a7532 | 1885 | struct drm_framebuffer *fb = NULL, *old_fb = NULL; |
8cf5c917 | 1886 | int ret = 0; |
42ef8789 | 1887 | unsigned int fb_width, fb_height; |
62443be6 | 1888 | int i; |
8cf5c917 JB |
1889 | |
1890 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
1891 | return -EINVAL; | |
1892 | ||
8cf5c917 JB |
1893 | /* |
1894 | * First, find the plane, crtc, and fb objects. If not available, | |
1895 | * we don't bother to call the driver. | |
1896 | */ | |
1897 | obj = drm_mode_object_find(dev, plane_req->plane_id, | |
1898 | DRM_MODE_OBJECT_PLANE); | |
1899 | if (!obj) { | |
1900 | DRM_DEBUG_KMS("Unknown plane ID %d\n", | |
1901 | plane_req->plane_id); | |
6c2a7532 | 1902 | return -ENOENT; |
8cf5c917 JB |
1903 | } |
1904 | plane = obj_to_plane(obj); | |
1905 | ||
1906 | /* No fb means shut it down */ | |
1907 | if (!plane_req->fb_id) { | |
6c2a7532 DV |
1908 | drm_modeset_lock_all(dev); |
1909 | old_fb = plane->fb; | |
8cf5c917 | 1910 | plane->funcs->disable_plane(plane); |
e5e3b44c VS |
1911 | plane->crtc = NULL; |
1912 | plane->fb = NULL; | |
6c2a7532 | 1913 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
1914 | goto out; |
1915 | } | |
1916 | ||
1917 | obj = drm_mode_object_find(dev, plane_req->crtc_id, | |
1918 | DRM_MODE_OBJECT_CRTC); | |
1919 | if (!obj) { | |
1920 | DRM_DEBUG_KMS("Unknown crtc ID %d\n", | |
1921 | plane_req->crtc_id); | |
1922 | ret = -ENOENT; | |
1923 | goto out; | |
1924 | } | |
1925 | crtc = obj_to_crtc(obj); | |
1926 | ||
786b99ed DV |
1927 | fb = drm_framebuffer_lookup(dev, plane_req->fb_id); |
1928 | if (!fb) { | |
8cf5c917 JB |
1929 | DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", |
1930 | plane_req->fb_id); | |
1931 | ret = -ENOENT; | |
1932 | goto out; | |
1933 | } | |
8cf5c917 | 1934 | |
62443be6 VS |
1935 | /* Check whether this plane supports the fb pixel format. */ |
1936 | for (i = 0; i < plane->format_count; i++) | |
1937 | if (fb->pixel_format == plane->format_types[i]) | |
1938 | break; | |
1939 | if (i == plane->format_count) { | |
1940 | DRM_DEBUG_KMS("Invalid pixel format 0x%08x\n", fb->pixel_format); | |
1941 | ret = -EINVAL; | |
1942 | goto out; | |
1943 | } | |
1944 | ||
42ef8789 VS |
1945 | fb_width = fb->width << 16; |
1946 | fb_height = fb->height << 16; | |
1947 | ||
1948 | /* Make sure source coordinates are inside the fb. */ | |
1949 | if (plane_req->src_w > fb_width || | |
1950 | plane_req->src_x > fb_width - plane_req->src_w || | |
1951 | plane_req->src_h > fb_height || | |
1952 | plane_req->src_y > fb_height - plane_req->src_h) { | |
1953 | DRM_DEBUG_KMS("Invalid source coordinates " | |
1954 | "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", | |
1955 | plane_req->src_w >> 16, | |
1956 | ((plane_req->src_w & 0xffff) * 15625) >> 10, | |
1957 | plane_req->src_h >> 16, | |
1958 | ((plane_req->src_h & 0xffff) * 15625) >> 10, | |
1959 | plane_req->src_x >> 16, | |
1960 | ((plane_req->src_x & 0xffff) * 15625) >> 10, | |
1961 | plane_req->src_y >> 16, | |
1962 | ((plane_req->src_y & 0xffff) * 15625) >> 10); | |
1963 | ret = -ENOSPC; | |
1964 | goto out; | |
1965 | } | |
1966 | ||
687a0400 VS |
1967 | /* Give drivers some help against integer overflows */ |
1968 | if (plane_req->crtc_w > INT_MAX || | |
1969 | plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w || | |
1970 | plane_req->crtc_h > INT_MAX || | |
1971 | plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) { | |
1972 | DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", | |
1973 | plane_req->crtc_w, plane_req->crtc_h, | |
1974 | plane_req->crtc_x, plane_req->crtc_y); | |
1975 | ret = -ERANGE; | |
1976 | goto out; | |
1977 | } | |
1978 | ||
6c2a7532 | 1979 | drm_modeset_lock_all(dev); |
8cf5c917 JB |
1980 | ret = plane->funcs->update_plane(plane, crtc, fb, |
1981 | plane_req->crtc_x, plane_req->crtc_y, | |
1982 | plane_req->crtc_w, plane_req->crtc_h, | |
1983 | plane_req->src_x, plane_req->src_y, | |
1984 | plane_req->src_w, plane_req->src_h); | |
1985 | if (!ret) { | |
6c2a7532 | 1986 | old_fb = plane->fb; |
8cf5c917 JB |
1987 | plane->crtc = crtc; |
1988 | plane->fb = fb; | |
35f8badc | 1989 | fb = NULL; |
8cf5c917 | 1990 | } |
6c2a7532 | 1991 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
1992 | |
1993 | out: | |
6c2a7532 DV |
1994 | if (fb) |
1995 | drm_framebuffer_unreference(fb); | |
1996 | if (old_fb) | |
1997 | drm_framebuffer_unreference(old_fb); | |
8cf5c917 JB |
1998 | |
1999 | return ret; | |
2000 | } | |
2001 | ||
2d13b679 DV |
2002 | /** |
2003 | * drm_mode_set_config_internal - helper to call ->set_config | |
2004 | * @set: modeset config to set | |
2005 | * | |
2006 | * This is a little helper to wrap internal calls to the ->set_config driver | |
2007 | * interface. The only thing it adds is correct refcounting dance. | |
2008 | */ | |
2009 | int drm_mode_set_config_internal(struct drm_mode_set *set) | |
2010 | { | |
2011 | struct drm_crtc *crtc = set->crtc; | |
b0d12325 DV |
2012 | struct drm_framebuffer *fb, *old_fb; |
2013 | int ret; | |
2014 | ||
2015 | old_fb = crtc->fb; | |
2016 | fb = set->fb; | |
2d13b679 | 2017 | |
b0d12325 DV |
2018 | ret = crtc->funcs->set_config(set); |
2019 | if (ret == 0) { | |
2020 | if (old_fb) | |
2021 | drm_framebuffer_unreference(old_fb); | |
2022 | if (fb) | |
2023 | drm_framebuffer_reference(fb); | |
2024 | } | |
2025 | ||
2026 | return ret; | |
2d13b679 DV |
2027 | } |
2028 | EXPORT_SYMBOL(drm_mode_set_config_internal); | |
2029 | ||
f453ba04 DA |
2030 | /** |
2031 | * drm_mode_setcrtc - set CRTC configuration | |
065a50ed DV |
2032 | * @dev: drm device for the ioctl |
2033 | * @data: data pointer for the ioctl | |
2034 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2035 | * |
f453ba04 DA |
2036 | * Build a new CRTC configuration based on user request. |
2037 | * | |
2038 | * Called by the user via ioctl. | |
2039 | * | |
2040 | * RETURNS: | |
2041 | * Zero on success, errno on failure. | |
2042 | */ | |
2043 | int drm_mode_setcrtc(struct drm_device *dev, void *data, | |
2044 | struct drm_file *file_priv) | |
2045 | { | |
2046 | struct drm_mode_config *config = &dev->mode_config; | |
2047 | struct drm_mode_crtc *crtc_req = data; | |
2048 | struct drm_mode_object *obj; | |
6653cc8d | 2049 | struct drm_crtc *crtc; |
f453ba04 DA |
2050 | struct drm_connector **connector_set = NULL, *connector; |
2051 | struct drm_framebuffer *fb = NULL; | |
2052 | struct drm_display_mode *mode = NULL; | |
2053 | struct drm_mode_set set; | |
2054 | uint32_t __user *set_connectors_ptr; | |
4a1b0714 | 2055 | int ret; |
f453ba04 DA |
2056 | int i; |
2057 | ||
fb3b06c8 DA |
2058 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2059 | return -EINVAL; | |
2060 | ||
1d97e915 VS |
2061 | /* For some reason crtc x/y offsets are signed internally. */ |
2062 | if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX) | |
2063 | return -ERANGE; | |
2064 | ||
84849903 | 2065 | drm_modeset_lock_all(dev); |
f453ba04 DA |
2066 | obj = drm_mode_object_find(dev, crtc_req->crtc_id, |
2067 | DRM_MODE_OBJECT_CRTC); | |
2068 | if (!obj) { | |
58367ed6 | 2069 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); |
f453ba04 DA |
2070 | ret = -EINVAL; |
2071 | goto out; | |
2072 | } | |
2073 | crtc = obj_to_crtc(obj); | |
9440106b | 2074 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
f453ba04 DA |
2075 | |
2076 | if (crtc_req->mode_valid) { | |
7c80e128 | 2077 | int hdisplay, vdisplay; |
f453ba04 DA |
2078 | /* If we have a mode we need a framebuffer. */ |
2079 | /* If we pass -1, set the mode with the currently bound fb */ | |
2080 | if (crtc_req->fb_id == -1) { | |
6653cc8d VS |
2081 | if (!crtc->fb) { |
2082 | DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); | |
2083 | ret = -EINVAL; | |
2084 | goto out; | |
f453ba04 | 2085 | } |
6653cc8d | 2086 | fb = crtc->fb; |
b0d12325 DV |
2087 | /* Make refcounting symmetric with the lookup path. */ |
2088 | drm_framebuffer_reference(fb); | |
f453ba04 | 2089 | } else { |
786b99ed DV |
2090 | fb = drm_framebuffer_lookup(dev, crtc_req->fb_id); |
2091 | if (!fb) { | |
58367ed6 ZY |
2092 | DRM_DEBUG_KMS("Unknown FB ID%d\n", |
2093 | crtc_req->fb_id); | |
f453ba04 DA |
2094 | ret = -EINVAL; |
2095 | goto out; | |
2096 | } | |
f453ba04 DA |
2097 | } |
2098 | ||
2099 | mode = drm_mode_create(dev); | |
ee34ab5b VS |
2100 | if (!mode) { |
2101 | ret = -ENOMEM; | |
2102 | goto out; | |
2103 | } | |
2104 | ||
90367bf6 VS |
2105 | ret = drm_crtc_convert_umode(mode, &crtc_req->mode); |
2106 | if (ret) { | |
2107 | DRM_DEBUG_KMS("Invalid mode\n"); | |
2108 | goto out; | |
2109 | } | |
2110 | ||
f453ba04 | 2111 | drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); |
5f61bb42 | 2112 | |
7c80e128 RC |
2113 | hdisplay = mode->hdisplay; |
2114 | vdisplay = mode->vdisplay; | |
2115 | ||
2116 | if (crtc->invert_dimensions) | |
2117 | swap(hdisplay, vdisplay); | |
2118 | ||
2119 | if (hdisplay > fb->width || | |
2120 | vdisplay > fb->height || | |
2121 | crtc_req->x > fb->width - hdisplay || | |
2122 | crtc_req->y > fb->height - vdisplay) { | |
2123 | DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n", | |
2124 | fb->width, fb->height, | |
2125 | hdisplay, vdisplay, crtc_req->x, crtc_req->y, | |
2126 | crtc->invert_dimensions ? " (inverted)" : ""); | |
5f61bb42 VS |
2127 | ret = -ENOSPC; |
2128 | goto out; | |
2129 | } | |
f453ba04 DA |
2130 | } |
2131 | ||
2132 | if (crtc_req->count_connectors == 0 && mode) { | |
58367ed6 | 2133 | DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); |
f453ba04 DA |
2134 | ret = -EINVAL; |
2135 | goto out; | |
2136 | } | |
2137 | ||
7781de74 | 2138 | if (crtc_req->count_connectors > 0 && (!mode || !fb)) { |
58367ed6 | 2139 | DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", |
f453ba04 DA |
2140 | crtc_req->count_connectors); |
2141 | ret = -EINVAL; | |
2142 | goto out; | |
2143 | } | |
2144 | ||
2145 | if (crtc_req->count_connectors > 0) { | |
2146 | u32 out_id; | |
2147 | ||
2148 | /* Avoid unbounded kernel memory allocation */ | |
2149 | if (crtc_req->count_connectors > config->num_connector) { | |
2150 | ret = -EINVAL; | |
2151 | goto out; | |
2152 | } | |
2153 | ||
2154 | connector_set = kmalloc(crtc_req->count_connectors * | |
2155 | sizeof(struct drm_connector *), | |
2156 | GFP_KERNEL); | |
2157 | if (!connector_set) { | |
2158 | ret = -ENOMEM; | |
2159 | goto out; | |
2160 | } | |
2161 | ||
2162 | for (i = 0; i < crtc_req->count_connectors; i++) { | |
81f6c7f8 | 2163 | set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; |
f453ba04 DA |
2164 | if (get_user(out_id, &set_connectors_ptr[i])) { |
2165 | ret = -EFAULT; | |
2166 | goto out; | |
2167 | } | |
2168 | ||
2169 | obj = drm_mode_object_find(dev, out_id, | |
2170 | DRM_MODE_OBJECT_CONNECTOR); | |
2171 | if (!obj) { | |
58367ed6 ZY |
2172 | DRM_DEBUG_KMS("Connector id %d unknown\n", |
2173 | out_id); | |
f453ba04 DA |
2174 | ret = -EINVAL; |
2175 | goto out; | |
2176 | } | |
2177 | connector = obj_to_connector(obj); | |
9440106b JG |
2178 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
2179 | connector->base.id, | |
2180 | drm_get_connector_name(connector)); | |
f453ba04 DA |
2181 | |
2182 | connector_set[i] = connector; | |
2183 | } | |
2184 | } | |
2185 | ||
2186 | set.crtc = crtc; | |
2187 | set.x = crtc_req->x; | |
2188 | set.y = crtc_req->y; | |
2189 | set.mode = mode; | |
2190 | set.connectors = connector_set; | |
2191 | set.num_connectors = crtc_req->count_connectors; | |
5ef5f72f | 2192 | set.fb = fb; |
2d13b679 | 2193 | ret = drm_mode_set_config_internal(&set); |
f453ba04 DA |
2194 | |
2195 | out: | |
b0d12325 DV |
2196 | if (fb) |
2197 | drm_framebuffer_unreference(fb); | |
2198 | ||
f453ba04 | 2199 | kfree(connector_set); |
ee34ab5b | 2200 | drm_mode_destroy(dev, mode); |
84849903 | 2201 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
2202 | return ret; |
2203 | } | |
2204 | ||
2205 | int drm_mode_cursor_ioctl(struct drm_device *dev, | |
2206 | void *data, struct drm_file *file_priv) | |
2207 | { | |
2208 | struct drm_mode_cursor *req = data; | |
2209 | struct drm_mode_object *obj; | |
2210 | struct drm_crtc *crtc; | |
2211 | int ret = 0; | |
2212 | ||
fb3b06c8 DA |
2213 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2214 | return -EINVAL; | |
2215 | ||
7c4eaca4 | 2216 | if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) |
f453ba04 | 2217 | return -EINVAL; |
f453ba04 | 2218 | |
e0c8463a | 2219 | obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC); |
f453ba04 | 2220 | if (!obj) { |
58367ed6 | 2221 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); |
dac35663 | 2222 | return -EINVAL; |
f453ba04 DA |
2223 | } |
2224 | crtc = obj_to_crtc(obj); | |
2225 | ||
dac35663 | 2226 | mutex_lock(&crtc->mutex); |
f453ba04 DA |
2227 | if (req->flags & DRM_MODE_CURSOR_BO) { |
2228 | if (!crtc->funcs->cursor_set) { | |
f453ba04 DA |
2229 | ret = -ENXIO; |
2230 | goto out; | |
2231 | } | |
2232 | /* Turns off the cursor if handle is 0 */ | |
2233 | ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, | |
2234 | req->width, req->height); | |
2235 | } | |
2236 | ||
2237 | if (req->flags & DRM_MODE_CURSOR_MOVE) { | |
2238 | if (crtc->funcs->cursor_move) { | |
2239 | ret = crtc->funcs->cursor_move(crtc, req->x, req->y); | |
2240 | } else { | |
f453ba04 DA |
2241 | ret = -EFAULT; |
2242 | goto out; | |
2243 | } | |
2244 | } | |
2245 | out: | |
dac35663 DV |
2246 | mutex_unlock(&crtc->mutex); |
2247 | ||
f453ba04 DA |
2248 | return ret; |
2249 | } | |
2250 | ||
308e5bcb JB |
2251 | /* Original addfb only supported RGB formats, so figure out which one */ |
2252 | uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth) | |
2253 | { | |
2254 | uint32_t fmt; | |
2255 | ||
2256 | switch (bpp) { | |
2257 | case 8: | |
d84f031b | 2258 | fmt = DRM_FORMAT_C8; |
308e5bcb JB |
2259 | break; |
2260 | case 16: | |
2261 | if (depth == 15) | |
04b3924d | 2262 | fmt = DRM_FORMAT_XRGB1555; |
308e5bcb | 2263 | else |
04b3924d | 2264 | fmt = DRM_FORMAT_RGB565; |
308e5bcb JB |
2265 | break; |
2266 | case 24: | |
04b3924d | 2267 | fmt = DRM_FORMAT_RGB888; |
308e5bcb JB |
2268 | break; |
2269 | case 32: | |
2270 | if (depth == 24) | |
04b3924d | 2271 | fmt = DRM_FORMAT_XRGB8888; |
308e5bcb | 2272 | else if (depth == 30) |
04b3924d | 2273 | fmt = DRM_FORMAT_XRGB2101010; |
308e5bcb | 2274 | else |
04b3924d | 2275 | fmt = DRM_FORMAT_ARGB8888; |
308e5bcb JB |
2276 | break; |
2277 | default: | |
04b3924d VS |
2278 | DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n"); |
2279 | fmt = DRM_FORMAT_XRGB8888; | |
308e5bcb JB |
2280 | break; |
2281 | } | |
2282 | ||
2283 | return fmt; | |
2284 | } | |
2285 | EXPORT_SYMBOL(drm_mode_legacy_fb_format); | |
2286 | ||
f453ba04 DA |
2287 | /** |
2288 | * drm_mode_addfb - add an FB to the graphics configuration | |
065a50ed DV |
2289 | * @dev: drm device for the ioctl |
2290 | * @data: data pointer for the ioctl | |
2291 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2292 | * |
f453ba04 DA |
2293 | * Add a new FB to the specified CRTC, given a user request. |
2294 | * | |
2295 | * Called by the user via ioctl. | |
2296 | * | |
2297 | * RETURNS: | |
2298 | * Zero on success, errno on failure. | |
2299 | */ | |
2300 | int drm_mode_addfb(struct drm_device *dev, | |
2301 | void *data, struct drm_file *file_priv) | |
2302 | { | |
308e5bcb JB |
2303 | struct drm_mode_fb_cmd *or = data; |
2304 | struct drm_mode_fb_cmd2 r = {}; | |
2305 | struct drm_mode_config *config = &dev->mode_config; | |
2306 | struct drm_framebuffer *fb; | |
2307 | int ret = 0; | |
2308 | ||
2309 | /* Use new struct with format internally */ | |
2310 | r.fb_id = or->fb_id; | |
2311 | r.width = or->width; | |
2312 | r.height = or->height; | |
2313 | r.pitches[0] = or->pitch; | |
2314 | r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth); | |
2315 | r.handles[0] = or->handle; | |
2316 | ||
2317 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2318 | return -EINVAL; | |
2319 | ||
acb4b992 | 2320 | if ((config->min_width > r.width) || (r.width > config->max_width)) |
308e5bcb | 2321 | return -EINVAL; |
acb4b992 JB |
2322 | |
2323 | if ((config->min_height > r.height) || (r.height > config->max_height)) | |
308e5bcb | 2324 | return -EINVAL; |
308e5bcb | 2325 | |
308e5bcb JB |
2326 | fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r); |
2327 | if (IS_ERR(fb)) { | |
1aa1b11c | 2328 | DRM_DEBUG_KMS("could not create framebuffer\n"); |
4b096ac1 | 2329 | return PTR_ERR(fb); |
308e5bcb JB |
2330 | } |
2331 | ||
4b096ac1 | 2332 | mutex_lock(&file_priv->fbs_lock); |
308e5bcb JB |
2333 | or->fb_id = fb->base.id; |
2334 | list_add(&fb->filp_head, &file_priv->fbs); | |
2335 | DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); | |
4b096ac1 | 2336 | mutex_unlock(&file_priv->fbs_lock); |
4b096ac1 | 2337 | |
308e5bcb JB |
2338 | return ret; |
2339 | } | |
2340 | ||
cff91b62 | 2341 | static int format_check(const struct drm_mode_fb_cmd2 *r) |
935b5977 VS |
2342 | { |
2343 | uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN; | |
2344 | ||
2345 | switch (format) { | |
2346 | case DRM_FORMAT_C8: | |
2347 | case DRM_FORMAT_RGB332: | |
2348 | case DRM_FORMAT_BGR233: | |
2349 | case DRM_FORMAT_XRGB4444: | |
2350 | case DRM_FORMAT_XBGR4444: | |
2351 | case DRM_FORMAT_RGBX4444: | |
2352 | case DRM_FORMAT_BGRX4444: | |
2353 | case DRM_FORMAT_ARGB4444: | |
2354 | case DRM_FORMAT_ABGR4444: | |
2355 | case DRM_FORMAT_RGBA4444: | |
2356 | case DRM_FORMAT_BGRA4444: | |
2357 | case DRM_FORMAT_XRGB1555: | |
2358 | case DRM_FORMAT_XBGR1555: | |
2359 | case DRM_FORMAT_RGBX5551: | |
2360 | case DRM_FORMAT_BGRX5551: | |
2361 | case DRM_FORMAT_ARGB1555: | |
2362 | case DRM_FORMAT_ABGR1555: | |
2363 | case DRM_FORMAT_RGBA5551: | |
2364 | case DRM_FORMAT_BGRA5551: | |
2365 | case DRM_FORMAT_RGB565: | |
2366 | case DRM_FORMAT_BGR565: | |
2367 | case DRM_FORMAT_RGB888: | |
2368 | case DRM_FORMAT_BGR888: | |
2369 | case DRM_FORMAT_XRGB8888: | |
2370 | case DRM_FORMAT_XBGR8888: | |
2371 | case DRM_FORMAT_RGBX8888: | |
2372 | case DRM_FORMAT_BGRX8888: | |
2373 | case DRM_FORMAT_ARGB8888: | |
2374 | case DRM_FORMAT_ABGR8888: | |
2375 | case DRM_FORMAT_RGBA8888: | |
2376 | case DRM_FORMAT_BGRA8888: | |
2377 | case DRM_FORMAT_XRGB2101010: | |
2378 | case DRM_FORMAT_XBGR2101010: | |
2379 | case DRM_FORMAT_RGBX1010102: | |
2380 | case DRM_FORMAT_BGRX1010102: | |
2381 | case DRM_FORMAT_ARGB2101010: | |
2382 | case DRM_FORMAT_ABGR2101010: | |
2383 | case DRM_FORMAT_RGBA1010102: | |
2384 | case DRM_FORMAT_BGRA1010102: | |
2385 | case DRM_FORMAT_YUYV: | |
2386 | case DRM_FORMAT_YVYU: | |
2387 | case DRM_FORMAT_UYVY: | |
2388 | case DRM_FORMAT_VYUY: | |
2389 | case DRM_FORMAT_AYUV: | |
2390 | case DRM_FORMAT_NV12: | |
2391 | case DRM_FORMAT_NV21: | |
2392 | case DRM_FORMAT_NV16: | |
2393 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
2394 | case DRM_FORMAT_NV24: |
2395 | case DRM_FORMAT_NV42: | |
935b5977 VS |
2396 | case DRM_FORMAT_YUV410: |
2397 | case DRM_FORMAT_YVU410: | |
2398 | case DRM_FORMAT_YUV411: | |
2399 | case DRM_FORMAT_YVU411: | |
2400 | case DRM_FORMAT_YUV420: | |
2401 | case DRM_FORMAT_YVU420: | |
2402 | case DRM_FORMAT_YUV422: | |
2403 | case DRM_FORMAT_YVU422: | |
2404 | case DRM_FORMAT_YUV444: | |
2405 | case DRM_FORMAT_YVU444: | |
2406 | return 0; | |
2407 | default: | |
2408 | return -EINVAL; | |
2409 | } | |
2410 | } | |
2411 | ||
cff91b62 | 2412 | static int framebuffer_check(const struct drm_mode_fb_cmd2 *r) |
d1b45d5f VS |
2413 | { |
2414 | int ret, hsub, vsub, num_planes, i; | |
2415 | ||
2416 | ret = format_check(r); | |
2417 | if (ret) { | |
1aa1b11c | 2418 | DRM_DEBUG_KMS("bad framebuffer format 0x%08x\n", r->pixel_format); |
d1b45d5f VS |
2419 | return ret; |
2420 | } | |
2421 | ||
2422 | hsub = drm_format_horz_chroma_subsampling(r->pixel_format); | |
2423 | vsub = drm_format_vert_chroma_subsampling(r->pixel_format); | |
2424 | num_planes = drm_format_num_planes(r->pixel_format); | |
2425 | ||
2426 | if (r->width == 0 || r->width % hsub) { | |
1aa1b11c | 2427 | DRM_DEBUG_KMS("bad framebuffer width %u\n", r->height); |
d1b45d5f VS |
2428 | return -EINVAL; |
2429 | } | |
2430 | ||
2431 | if (r->height == 0 || r->height % vsub) { | |
1aa1b11c | 2432 | DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height); |
d1b45d5f VS |
2433 | return -EINVAL; |
2434 | } | |
2435 | ||
2436 | for (i = 0; i < num_planes; i++) { | |
2437 | unsigned int width = r->width / (i != 0 ? hsub : 1); | |
b180b5d1 VS |
2438 | unsigned int height = r->height / (i != 0 ? vsub : 1); |
2439 | unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i); | |
d1b45d5f VS |
2440 | |
2441 | if (!r->handles[i]) { | |
1aa1b11c | 2442 | DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i); |
d1b45d5f VS |
2443 | return -EINVAL; |
2444 | } | |
2445 | ||
b180b5d1 VS |
2446 | if ((uint64_t) width * cpp > UINT_MAX) |
2447 | return -ERANGE; | |
2448 | ||
2449 | if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX) | |
2450 | return -ERANGE; | |
2451 | ||
2452 | if (r->pitches[i] < width * cpp) { | |
1aa1b11c | 2453 | DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i); |
d1b45d5f VS |
2454 | return -EINVAL; |
2455 | } | |
2456 | } | |
2457 | ||
2458 | return 0; | |
2459 | } | |
2460 | ||
308e5bcb JB |
2461 | /** |
2462 | * drm_mode_addfb2 - add an FB to the graphics configuration | |
065a50ed DV |
2463 | * @dev: drm device for the ioctl |
2464 | * @data: data pointer for the ioctl | |
2465 | * @file_priv: drm file for the ioctl call | |
308e5bcb | 2466 | * |
308e5bcb JB |
2467 | * Add a new FB to the specified CRTC, given a user request with format. |
2468 | * | |
2469 | * Called by the user via ioctl. | |
2470 | * | |
2471 | * RETURNS: | |
2472 | * Zero on success, errno on failure. | |
2473 | */ | |
2474 | int drm_mode_addfb2(struct drm_device *dev, | |
2475 | void *data, struct drm_file *file_priv) | |
2476 | { | |
2477 | struct drm_mode_fb_cmd2 *r = data; | |
f453ba04 DA |
2478 | struct drm_mode_config *config = &dev->mode_config; |
2479 | struct drm_framebuffer *fb; | |
4a1b0714 | 2480 | int ret; |
f453ba04 | 2481 | |
fb3b06c8 DA |
2482 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2483 | return -EINVAL; | |
2484 | ||
e3cc3520 VS |
2485 | if (r->flags & ~DRM_MODE_FB_INTERLACED) { |
2486 | DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags); | |
2487 | return -EINVAL; | |
2488 | } | |
2489 | ||
f453ba04 | 2490 | if ((config->min_width > r->width) || (r->width > config->max_width)) { |
1aa1b11c | 2491 | DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n", |
8cf5c917 | 2492 | r->width, config->min_width, config->max_width); |
f453ba04 DA |
2493 | return -EINVAL; |
2494 | } | |
2495 | if ((config->min_height > r->height) || (r->height > config->max_height)) { | |
1aa1b11c | 2496 | DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n", |
8cf5c917 | 2497 | r->height, config->min_height, config->max_height); |
f453ba04 DA |
2498 | return -EINVAL; |
2499 | } | |
2500 | ||
d1b45d5f VS |
2501 | ret = framebuffer_check(r); |
2502 | if (ret) | |
935b5977 | 2503 | return ret; |
935b5977 | 2504 | |
f453ba04 | 2505 | fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); |
cce13ff7 | 2506 | if (IS_ERR(fb)) { |
1aa1b11c | 2507 | DRM_DEBUG_KMS("could not create framebuffer\n"); |
4b096ac1 | 2508 | return PTR_ERR(fb); |
f453ba04 DA |
2509 | } |
2510 | ||
4b096ac1 | 2511 | mutex_lock(&file_priv->fbs_lock); |
e0c8463a | 2512 | r->fb_id = fb->base.id; |
f453ba04 | 2513 | list_add(&fb->filp_head, &file_priv->fbs); |
9440106b | 2514 | DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); |
4b096ac1 | 2515 | mutex_unlock(&file_priv->fbs_lock); |
f453ba04 | 2516 | |
4b096ac1 | 2517 | |
f453ba04 DA |
2518 | return ret; |
2519 | } | |
2520 | ||
2521 | /** | |
2522 | * drm_mode_rmfb - remove an FB from the configuration | |
065a50ed DV |
2523 | * @dev: drm device for the ioctl |
2524 | * @data: data pointer for the ioctl | |
2525 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2526 | * |
f453ba04 DA |
2527 | * Remove the FB specified by the user. |
2528 | * | |
2529 | * Called by the user via ioctl. | |
2530 | * | |
2531 | * RETURNS: | |
2532 | * Zero on success, errno on failure. | |
2533 | */ | |
2534 | int drm_mode_rmfb(struct drm_device *dev, | |
2535 | void *data, struct drm_file *file_priv) | |
2536 | { | |
f453ba04 DA |
2537 | struct drm_framebuffer *fb = NULL; |
2538 | struct drm_framebuffer *fbl = NULL; | |
2539 | uint32_t *id = data; | |
f453ba04 DA |
2540 | int found = 0; |
2541 | ||
fb3b06c8 DA |
2542 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2543 | return -EINVAL; | |
2544 | ||
4b096ac1 | 2545 | mutex_lock(&file_priv->fbs_lock); |
2b677e8c DV |
2546 | mutex_lock(&dev->mode_config.fb_lock); |
2547 | fb = __drm_framebuffer_lookup(dev, *id); | |
2548 | if (!fb) | |
2549 | goto fail_lookup; | |
2550 | ||
f453ba04 DA |
2551 | list_for_each_entry(fbl, &file_priv->fbs, filp_head) |
2552 | if (fb == fbl) | |
2553 | found = 1; | |
2b677e8c DV |
2554 | if (!found) |
2555 | goto fail_lookup; | |
2556 | ||
2557 | /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ | |
2558 | __drm_framebuffer_unregister(dev, fb); | |
f453ba04 | 2559 | |
4b096ac1 | 2560 | list_del_init(&fb->filp_head); |
2b677e8c | 2561 | mutex_unlock(&dev->mode_config.fb_lock); |
4b096ac1 | 2562 | mutex_unlock(&file_priv->fbs_lock); |
f453ba04 | 2563 | |
4b096ac1 | 2564 | drm_framebuffer_remove(fb); |
4b096ac1 | 2565 | |
2b677e8c DV |
2566 | return 0; |
2567 | ||
2568 | fail_lookup: | |
2569 | mutex_unlock(&dev->mode_config.fb_lock); | |
2570 | mutex_unlock(&file_priv->fbs_lock); | |
2571 | ||
2572 | return -EINVAL; | |
f453ba04 DA |
2573 | } |
2574 | ||
2575 | /** | |
2576 | * drm_mode_getfb - get FB info | |
065a50ed DV |
2577 | * @dev: drm device for the ioctl |
2578 | * @data: data pointer for the ioctl | |
2579 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2580 | * |
f453ba04 DA |
2581 | * Lookup the FB given its ID and return info about it. |
2582 | * | |
2583 | * Called by the user via ioctl. | |
2584 | * | |
2585 | * RETURNS: | |
2586 | * Zero on success, errno on failure. | |
2587 | */ | |
2588 | int drm_mode_getfb(struct drm_device *dev, | |
2589 | void *data, struct drm_file *file_priv) | |
2590 | { | |
2591 | struct drm_mode_fb_cmd *r = data; | |
f453ba04 | 2592 | struct drm_framebuffer *fb; |
58c0dca1 | 2593 | int ret; |
f453ba04 | 2594 | |
fb3b06c8 DA |
2595 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2596 | return -EINVAL; | |
2597 | ||
786b99ed | 2598 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
58c0dca1 DV |
2599 | if (!fb) |
2600 | return -EINVAL; | |
f453ba04 DA |
2601 | |
2602 | r->height = fb->height; | |
2603 | r->width = fb->width; | |
2604 | r->depth = fb->depth; | |
2605 | r->bpp = fb->bits_per_pixel; | |
01f2c773 | 2606 | r->pitch = fb->pitches[0]; |
af26ef3b DV |
2607 | if (fb->funcs->create_handle) |
2608 | ret = fb->funcs->create_handle(fb, file_priv, &r->handle); | |
2609 | else | |
2610 | ret = -ENODEV; | |
f453ba04 | 2611 | |
58c0dca1 DV |
2612 | drm_framebuffer_unreference(fb); |
2613 | ||
f453ba04 DA |
2614 | return ret; |
2615 | } | |
2616 | ||
884840aa JB |
2617 | int drm_mode_dirtyfb_ioctl(struct drm_device *dev, |
2618 | void *data, struct drm_file *file_priv) | |
2619 | { | |
2620 | struct drm_clip_rect __user *clips_ptr; | |
2621 | struct drm_clip_rect *clips = NULL; | |
2622 | struct drm_mode_fb_dirty_cmd *r = data; | |
884840aa JB |
2623 | struct drm_framebuffer *fb; |
2624 | unsigned flags; | |
2625 | int num_clips; | |
4a1b0714 | 2626 | int ret; |
884840aa | 2627 | |
fb3b06c8 DA |
2628 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2629 | return -EINVAL; | |
2630 | ||
786b99ed | 2631 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
4ccf097f DV |
2632 | if (!fb) |
2633 | return -EINVAL; | |
884840aa JB |
2634 | |
2635 | num_clips = r->num_clips; | |
81f6c7f8 | 2636 | clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; |
884840aa JB |
2637 | |
2638 | if (!num_clips != !clips_ptr) { | |
2639 | ret = -EINVAL; | |
2640 | goto out_err1; | |
2641 | } | |
2642 | ||
2643 | flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags; | |
2644 | ||
2645 | /* If userspace annotates copy, clips must come in pairs */ | |
2646 | if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) { | |
2647 | ret = -EINVAL; | |
2648 | goto out_err1; | |
2649 | } | |
2650 | ||
2651 | if (num_clips && clips_ptr) { | |
a5cd3351 XW |
2652 | if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) { |
2653 | ret = -EINVAL; | |
2654 | goto out_err1; | |
2655 | } | |
884840aa JB |
2656 | clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL); |
2657 | if (!clips) { | |
2658 | ret = -ENOMEM; | |
2659 | goto out_err1; | |
2660 | } | |
2661 | ||
2662 | ret = copy_from_user(clips, clips_ptr, | |
2663 | num_clips * sizeof(*clips)); | |
e902a358 DC |
2664 | if (ret) { |
2665 | ret = -EFAULT; | |
884840aa | 2666 | goto out_err2; |
e902a358 | 2667 | } |
884840aa JB |
2668 | } |
2669 | ||
2670 | if (fb->funcs->dirty) { | |
4ccf097f | 2671 | drm_modeset_lock_all(dev); |
02b00162 TH |
2672 | ret = fb->funcs->dirty(fb, file_priv, flags, r->color, |
2673 | clips, num_clips); | |
4ccf097f | 2674 | drm_modeset_unlock_all(dev); |
884840aa JB |
2675 | } else { |
2676 | ret = -ENOSYS; | |
884840aa JB |
2677 | } |
2678 | ||
2679 | out_err2: | |
2680 | kfree(clips); | |
2681 | out_err1: | |
4ccf097f DV |
2682 | drm_framebuffer_unreference(fb); |
2683 | ||
884840aa JB |
2684 | return ret; |
2685 | } | |
2686 | ||
2687 | ||
f453ba04 DA |
2688 | /** |
2689 | * drm_fb_release - remove and free the FBs on this file | |
065a50ed | 2690 | * @priv: drm file for the ioctl |
f453ba04 | 2691 | * |
f453ba04 DA |
2692 | * Destroy all the FBs associated with @filp. |
2693 | * | |
2694 | * Called by the user via ioctl. | |
2695 | * | |
2696 | * RETURNS: | |
2697 | * Zero on success, errno on failure. | |
2698 | */ | |
ea39f835 | 2699 | void drm_fb_release(struct drm_file *priv) |
f453ba04 | 2700 | { |
f453ba04 DA |
2701 | struct drm_device *dev = priv->minor->dev; |
2702 | struct drm_framebuffer *fb, *tfb; | |
2703 | ||
4b096ac1 | 2704 | mutex_lock(&priv->fbs_lock); |
f453ba04 | 2705 | list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { |
2b677e8c DV |
2706 | |
2707 | mutex_lock(&dev->mode_config.fb_lock); | |
2708 | /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ | |
2709 | __drm_framebuffer_unregister(dev, fb); | |
2710 | mutex_unlock(&dev->mode_config.fb_lock); | |
2711 | ||
4b096ac1 | 2712 | list_del_init(&fb->filp_head); |
2b677e8c DV |
2713 | |
2714 | /* This will also drop the fpriv->fbs reference. */ | |
f7eff60e | 2715 | drm_framebuffer_remove(fb); |
f453ba04 | 2716 | } |
4b096ac1 | 2717 | mutex_unlock(&priv->fbs_lock); |
f453ba04 DA |
2718 | } |
2719 | ||
2720 | /** | |
2721 | * drm_mode_attachmode - add a mode to the user mode list | |
2722 | * @dev: DRM device | |
2723 | * @connector: connector to add the mode to | |
2724 | * @mode: mode to add | |
2725 | * | |
2726 | * Add @mode to @connector's user mode list. | |
2727 | */ | |
1dd6c8bd VS |
2728 | static void drm_mode_attachmode(struct drm_device *dev, |
2729 | struct drm_connector *connector, | |
2730 | struct drm_display_mode *mode) | |
f453ba04 | 2731 | { |
f453ba04 | 2732 | list_add_tail(&mode->head, &connector->user_modes); |
f453ba04 DA |
2733 | } |
2734 | ||
2735 | int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc, | |
ac235daf | 2736 | const struct drm_display_mode *mode) |
f453ba04 DA |
2737 | { |
2738 | struct drm_connector *connector; | |
ac235daf VS |
2739 | int ret = 0; |
2740 | struct drm_display_mode *dup_mode, *next; | |
2741 | LIST_HEAD(list); | |
2742 | ||
f453ba04 DA |
2743 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
2744 | if (!connector->encoder) | |
ac235daf | 2745 | continue; |
f453ba04 | 2746 | if (connector->encoder->crtc == crtc) { |
ac235daf VS |
2747 | dup_mode = drm_mode_duplicate(dev, mode); |
2748 | if (!dup_mode) { | |
2749 | ret = -ENOMEM; | |
2750 | goto out; | |
2751 | } | |
2752 | list_add_tail(&dup_mode->head, &list); | |
f453ba04 DA |
2753 | } |
2754 | } | |
ac235daf VS |
2755 | |
2756 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
2757 | if (!connector->encoder) | |
2758 | continue; | |
2759 | if (connector->encoder->crtc == crtc) | |
2760 | list_move_tail(list.next, &connector->user_modes); | |
2761 | } | |
2762 | ||
2763 | WARN_ON(!list_empty(&list)); | |
2764 | ||
2765 | out: | |
2766 | list_for_each_entry_safe(dup_mode, next, &list, head) | |
2767 | drm_mode_destroy(dev, dup_mode); | |
2768 | ||
2769 | return ret; | |
f453ba04 DA |
2770 | } |
2771 | EXPORT_SYMBOL(drm_mode_attachmode_crtc); | |
2772 | ||
2773 | static int drm_mode_detachmode(struct drm_device *dev, | |
2774 | struct drm_connector *connector, | |
2775 | struct drm_display_mode *mode) | |
2776 | { | |
2777 | int found = 0; | |
2778 | int ret = 0; | |
2779 | struct drm_display_mode *match_mode, *t; | |
2780 | ||
2781 | list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) { | |
2782 | if (drm_mode_equal(match_mode, mode)) { | |
2783 | list_del(&match_mode->head); | |
2784 | drm_mode_destroy(dev, match_mode); | |
2785 | found = 1; | |
2786 | break; | |
2787 | } | |
2788 | } | |
2789 | ||
2790 | if (!found) | |
2791 | ret = -EINVAL; | |
2792 | ||
2793 | return ret; | |
2794 | } | |
2795 | ||
2796 | int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode) | |
2797 | { | |
2798 | struct drm_connector *connector; | |
2799 | ||
2800 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
2801 | drm_mode_detachmode(dev, connector, mode); | |
2802 | } | |
2803 | return 0; | |
2804 | } | |
2805 | EXPORT_SYMBOL(drm_mode_detachmode_crtc); | |
2806 | ||
2807 | /** | |
2808 | * drm_fb_attachmode - Attach a user mode to an connector | |
065a50ed DV |
2809 | * @dev: drm device for the ioctl |
2810 | * @data: data pointer for the ioctl | |
2811 | * @file_priv: drm file for the ioctl call | |
f453ba04 DA |
2812 | * |
2813 | * This attaches a user specified mode to an connector. | |
2814 | * Called by the user via ioctl. | |
2815 | * | |
2816 | * RETURNS: | |
2817 | * Zero on success, errno on failure. | |
2818 | */ | |
2819 | int drm_mode_attachmode_ioctl(struct drm_device *dev, | |
2820 | void *data, struct drm_file *file_priv) | |
2821 | { | |
2822 | struct drm_mode_mode_cmd *mode_cmd = data; | |
2823 | struct drm_connector *connector; | |
2824 | struct drm_display_mode *mode; | |
2825 | struct drm_mode_object *obj; | |
2826 | struct drm_mode_modeinfo *umode = &mode_cmd->mode; | |
4a1b0714 | 2827 | int ret; |
f453ba04 | 2828 | |
fb3b06c8 DA |
2829 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2830 | return -EINVAL; | |
2831 | ||
84849903 | 2832 | drm_modeset_lock_all(dev); |
f453ba04 DA |
2833 | |
2834 | obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR); | |
2835 | if (!obj) { | |
2836 | ret = -EINVAL; | |
2837 | goto out; | |
2838 | } | |
2839 | connector = obj_to_connector(obj); | |
2840 | ||
2841 | mode = drm_mode_create(dev); | |
2842 | if (!mode) { | |
2843 | ret = -ENOMEM; | |
2844 | goto out; | |
2845 | } | |
2846 | ||
90367bf6 VS |
2847 | ret = drm_crtc_convert_umode(mode, umode); |
2848 | if (ret) { | |
2849 | DRM_DEBUG_KMS("Invalid mode\n"); | |
2850 | drm_mode_destroy(dev, mode); | |
2851 | goto out; | |
2852 | } | |
f453ba04 | 2853 | |
1dd6c8bd | 2854 | drm_mode_attachmode(dev, connector, mode); |
f453ba04 | 2855 | out: |
84849903 | 2856 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
2857 | return ret; |
2858 | } | |
2859 | ||
2860 | ||
2861 | /** | |
2862 | * drm_fb_detachmode - Detach a user specified mode from an connector | |
065a50ed DV |
2863 | * @dev: drm device for the ioctl |
2864 | * @data: data pointer for the ioctl | |
2865 | * @file_priv: drm file for the ioctl call | |
f453ba04 DA |
2866 | * |
2867 | * Called by the user via ioctl. | |
2868 | * | |
2869 | * RETURNS: | |
2870 | * Zero on success, errno on failure. | |
2871 | */ | |
2872 | int drm_mode_detachmode_ioctl(struct drm_device *dev, | |
2873 | void *data, struct drm_file *file_priv) | |
2874 | { | |
2875 | struct drm_mode_object *obj; | |
2876 | struct drm_mode_mode_cmd *mode_cmd = data; | |
2877 | struct drm_connector *connector; | |
2878 | struct drm_display_mode mode; | |
2879 | struct drm_mode_modeinfo *umode = &mode_cmd->mode; | |
4a1b0714 | 2880 | int ret; |
f453ba04 | 2881 | |
fb3b06c8 DA |
2882 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2883 | return -EINVAL; | |
2884 | ||
84849903 | 2885 | drm_modeset_lock_all(dev); |
f453ba04 DA |
2886 | |
2887 | obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR); | |
2888 | if (!obj) { | |
2889 | ret = -EINVAL; | |
2890 | goto out; | |
2891 | } | |
2892 | connector = obj_to_connector(obj); | |
2893 | ||
90367bf6 VS |
2894 | ret = drm_crtc_convert_umode(&mode, umode); |
2895 | if (ret) { | |
2896 | DRM_DEBUG_KMS("Invalid mode\n"); | |
2897 | goto out; | |
2898 | } | |
2899 | ||
f453ba04 DA |
2900 | ret = drm_mode_detachmode(dev, connector, &mode); |
2901 | out: | |
84849903 | 2902 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
2903 | return ret; |
2904 | } | |
2905 | ||
2906 | struct drm_property *drm_property_create(struct drm_device *dev, int flags, | |
2907 | const char *name, int num_values) | |
2908 | { | |
2909 | struct drm_property *property = NULL; | |
6bfc56aa | 2910 | int ret; |
f453ba04 DA |
2911 | |
2912 | property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); | |
2913 | if (!property) | |
2914 | return NULL; | |
2915 | ||
2916 | if (num_values) { | |
2917 | property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL); | |
2918 | if (!property->values) | |
2919 | goto fail; | |
2920 | } | |
2921 | ||
6bfc56aa VS |
2922 | ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); |
2923 | if (ret) | |
2924 | goto fail; | |
2925 | ||
f453ba04 DA |
2926 | property->flags = flags; |
2927 | property->num_values = num_values; | |
2928 | INIT_LIST_HEAD(&property->enum_blob_list); | |
2929 | ||
471dd2ef | 2930 | if (name) { |
f453ba04 | 2931 | strncpy(property->name, name, DRM_PROP_NAME_LEN); |
471dd2ef VL |
2932 | property->name[DRM_PROP_NAME_LEN-1] = '\0'; |
2933 | } | |
f453ba04 DA |
2934 | |
2935 | list_add_tail(&property->head, &dev->mode_config.property_list); | |
2936 | return property; | |
2937 | fail: | |
6bfc56aa | 2938 | kfree(property->values); |
f453ba04 DA |
2939 | kfree(property); |
2940 | return NULL; | |
2941 | } | |
2942 | EXPORT_SYMBOL(drm_property_create); | |
2943 | ||
4a67d391 SH |
2944 | struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, |
2945 | const char *name, | |
2946 | const struct drm_prop_enum_list *props, | |
2947 | int num_values) | |
2948 | { | |
2949 | struct drm_property *property; | |
2950 | int i, ret; | |
2951 | ||
2952 | flags |= DRM_MODE_PROP_ENUM; | |
2953 | ||
2954 | property = drm_property_create(dev, flags, name, num_values); | |
2955 | if (!property) | |
2956 | return NULL; | |
2957 | ||
2958 | for (i = 0; i < num_values; i++) { | |
2959 | ret = drm_property_add_enum(property, i, | |
2960 | props[i].type, | |
2961 | props[i].name); | |
2962 | if (ret) { | |
2963 | drm_property_destroy(dev, property); | |
2964 | return NULL; | |
2965 | } | |
2966 | } | |
2967 | ||
2968 | return property; | |
2969 | } | |
2970 | EXPORT_SYMBOL(drm_property_create_enum); | |
2971 | ||
49e27545 RC |
2972 | struct drm_property *drm_property_create_bitmask(struct drm_device *dev, |
2973 | int flags, const char *name, | |
2974 | const struct drm_prop_enum_list *props, | |
2975 | int num_values) | |
2976 | { | |
2977 | struct drm_property *property; | |
2978 | int i, ret; | |
2979 | ||
2980 | flags |= DRM_MODE_PROP_BITMASK; | |
2981 | ||
2982 | property = drm_property_create(dev, flags, name, num_values); | |
2983 | if (!property) | |
2984 | return NULL; | |
2985 | ||
2986 | for (i = 0; i < num_values; i++) { | |
2987 | ret = drm_property_add_enum(property, i, | |
2988 | props[i].type, | |
2989 | props[i].name); | |
2990 | if (ret) { | |
2991 | drm_property_destroy(dev, property); | |
2992 | return NULL; | |
2993 | } | |
2994 | } | |
2995 | ||
2996 | return property; | |
2997 | } | |
2998 | EXPORT_SYMBOL(drm_property_create_bitmask); | |
2999 | ||
d9bc3c02 SH |
3000 | struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, |
3001 | const char *name, | |
3002 | uint64_t min, uint64_t max) | |
3003 | { | |
3004 | struct drm_property *property; | |
3005 | ||
3006 | flags |= DRM_MODE_PROP_RANGE; | |
3007 | ||
3008 | property = drm_property_create(dev, flags, name, 2); | |
3009 | if (!property) | |
3010 | return NULL; | |
3011 | ||
3012 | property->values[0] = min; | |
3013 | property->values[1] = max; | |
3014 | ||
3015 | return property; | |
3016 | } | |
3017 | EXPORT_SYMBOL(drm_property_create_range); | |
3018 | ||
f453ba04 DA |
3019 | int drm_property_add_enum(struct drm_property *property, int index, |
3020 | uint64_t value, const char *name) | |
3021 | { | |
3022 | struct drm_property_enum *prop_enum; | |
3023 | ||
49e27545 RC |
3024 | if (!(property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK))) |
3025 | return -EINVAL; | |
3026 | ||
3027 | /* | |
3028 | * Bitmask enum properties have the additional constraint of values | |
3029 | * from 0 to 63 | |
3030 | */ | |
3031 | if ((property->flags & DRM_MODE_PROP_BITMASK) && (value > 63)) | |
f453ba04 DA |
3032 | return -EINVAL; |
3033 | ||
3034 | if (!list_empty(&property->enum_blob_list)) { | |
3035 | list_for_each_entry(prop_enum, &property->enum_blob_list, head) { | |
3036 | if (prop_enum->value == value) { | |
3037 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
3038 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
3039 | return 0; | |
3040 | } | |
3041 | } | |
3042 | } | |
3043 | ||
3044 | prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); | |
3045 | if (!prop_enum) | |
3046 | return -ENOMEM; | |
3047 | ||
3048 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
3049 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
3050 | prop_enum->value = value; | |
3051 | ||
3052 | property->values[index] = value; | |
3053 | list_add_tail(&prop_enum->head, &property->enum_blob_list); | |
3054 | return 0; | |
3055 | } | |
3056 | EXPORT_SYMBOL(drm_property_add_enum); | |
3057 | ||
3058 | void drm_property_destroy(struct drm_device *dev, struct drm_property *property) | |
3059 | { | |
3060 | struct drm_property_enum *prop_enum, *pt; | |
3061 | ||
3062 | list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) { | |
3063 | list_del(&prop_enum->head); | |
3064 | kfree(prop_enum); | |
3065 | } | |
3066 | ||
3067 | if (property->num_values) | |
3068 | kfree(property->values); | |
3069 | drm_mode_object_put(dev, &property->base); | |
3070 | list_del(&property->head); | |
3071 | kfree(property); | |
3072 | } | |
3073 | EXPORT_SYMBOL(drm_property_destroy); | |
3074 | ||
c543188a PZ |
3075 | void drm_object_attach_property(struct drm_mode_object *obj, |
3076 | struct drm_property *property, | |
3077 | uint64_t init_val) | |
3078 | { | |
7f88a9be | 3079 | int count = obj->properties->count; |
c543188a | 3080 | |
7f88a9be PZ |
3081 | if (count == DRM_OBJECT_MAX_PROPERTY) { |
3082 | WARN(1, "Failed to attach object property (type: 0x%x). Please " | |
3083 | "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time " | |
3084 | "you see this message on the same object type.\n", | |
3085 | obj->type); | |
3086 | return; | |
c543188a PZ |
3087 | } |
3088 | ||
7f88a9be PZ |
3089 | obj->properties->ids[count] = property->base.id; |
3090 | obj->properties->values[count] = init_val; | |
3091 | obj->properties->count++; | |
c543188a PZ |
3092 | } |
3093 | EXPORT_SYMBOL(drm_object_attach_property); | |
3094 | ||
3095 | int drm_object_property_set_value(struct drm_mode_object *obj, | |
3096 | struct drm_property *property, uint64_t val) | |
3097 | { | |
3098 | int i; | |
3099 | ||
7f88a9be | 3100 | for (i = 0; i < obj->properties->count; i++) { |
c543188a PZ |
3101 | if (obj->properties->ids[i] == property->base.id) { |
3102 | obj->properties->values[i] = val; | |
3103 | return 0; | |
3104 | } | |
3105 | } | |
3106 | ||
3107 | return -EINVAL; | |
3108 | } | |
3109 | EXPORT_SYMBOL(drm_object_property_set_value); | |
3110 | ||
3111 | int drm_object_property_get_value(struct drm_mode_object *obj, | |
3112 | struct drm_property *property, uint64_t *val) | |
3113 | { | |
3114 | int i; | |
3115 | ||
7f88a9be | 3116 | for (i = 0; i < obj->properties->count; i++) { |
c543188a PZ |
3117 | if (obj->properties->ids[i] == property->base.id) { |
3118 | *val = obj->properties->values[i]; | |
3119 | return 0; | |
3120 | } | |
3121 | } | |
3122 | ||
3123 | return -EINVAL; | |
3124 | } | |
3125 | EXPORT_SYMBOL(drm_object_property_get_value); | |
3126 | ||
f453ba04 DA |
3127 | int drm_mode_getproperty_ioctl(struct drm_device *dev, |
3128 | void *data, struct drm_file *file_priv) | |
3129 | { | |
3130 | struct drm_mode_object *obj; | |
3131 | struct drm_mode_get_property *out_resp = data; | |
3132 | struct drm_property *property; | |
3133 | int enum_count = 0; | |
3134 | int blob_count = 0; | |
3135 | int value_count = 0; | |
3136 | int ret = 0, i; | |
3137 | int copied; | |
3138 | struct drm_property_enum *prop_enum; | |
3139 | struct drm_mode_property_enum __user *enum_ptr; | |
3140 | struct drm_property_blob *prop_blob; | |
81f6c7f8 | 3141 | uint32_t __user *blob_id_ptr; |
f453ba04 DA |
3142 | uint64_t __user *values_ptr; |
3143 | uint32_t __user *blob_length_ptr; | |
3144 | ||
fb3b06c8 DA |
3145 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3146 | return -EINVAL; | |
3147 | ||
84849903 | 3148 | drm_modeset_lock_all(dev); |
f453ba04 DA |
3149 | obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY); |
3150 | if (!obj) { | |
3151 | ret = -EINVAL; | |
3152 | goto done; | |
3153 | } | |
3154 | property = obj_to_property(obj); | |
3155 | ||
49e27545 | 3156 | if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) { |
f453ba04 DA |
3157 | list_for_each_entry(prop_enum, &property->enum_blob_list, head) |
3158 | enum_count++; | |
3159 | } else if (property->flags & DRM_MODE_PROP_BLOB) { | |
3160 | list_for_each_entry(prop_blob, &property->enum_blob_list, head) | |
3161 | blob_count++; | |
3162 | } | |
3163 | ||
3164 | value_count = property->num_values; | |
3165 | ||
3166 | strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); | |
3167 | out_resp->name[DRM_PROP_NAME_LEN-1] = 0; | |
3168 | out_resp->flags = property->flags; | |
3169 | ||
3170 | if ((out_resp->count_values >= value_count) && value_count) { | |
81f6c7f8 | 3171 | values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; |
f453ba04 DA |
3172 | for (i = 0; i < value_count; i++) { |
3173 | if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { | |
3174 | ret = -EFAULT; | |
3175 | goto done; | |
3176 | } | |
3177 | } | |
3178 | } | |
3179 | out_resp->count_values = value_count; | |
3180 | ||
49e27545 | 3181 | if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) { |
f453ba04 DA |
3182 | if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { |
3183 | copied = 0; | |
81f6c7f8 | 3184 | enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; |
f453ba04 DA |
3185 | list_for_each_entry(prop_enum, &property->enum_blob_list, head) { |
3186 | ||
3187 | if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { | |
3188 | ret = -EFAULT; | |
3189 | goto done; | |
3190 | } | |
3191 | ||
3192 | if (copy_to_user(&enum_ptr[copied].name, | |
3193 | &prop_enum->name, DRM_PROP_NAME_LEN)) { | |
3194 | ret = -EFAULT; | |
3195 | goto done; | |
3196 | } | |
3197 | copied++; | |
3198 | } | |
3199 | } | |
3200 | out_resp->count_enum_blobs = enum_count; | |
3201 | } | |
3202 | ||
3203 | if (property->flags & DRM_MODE_PROP_BLOB) { | |
3204 | if ((out_resp->count_enum_blobs >= blob_count) && blob_count) { | |
3205 | copied = 0; | |
81f6c7f8 VS |
3206 | blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr; |
3207 | blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr; | |
f453ba04 DA |
3208 | |
3209 | list_for_each_entry(prop_blob, &property->enum_blob_list, head) { | |
3210 | if (put_user(prop_blob->base.id, blob_id_ptr + copied)) { | |
3211 | ret = -EFAULT; | |
3212 | goto done; | |
3213 | } | |
3214 | ||
3215 | if (put_user(prop_blob->length, blob_length_ptr + copied)) { | |
3216 | ret = -EFAULT; | |
3217 | goto done; | |
3218 | } | |
3219 | ||
3220 | copied++; | |
3221 | } | |
3222 | } | |
3223 | out_resp->count_enum_blobs = blob_count; | |
3224 | } | |
3225 | done: | |
84849903 | 3226 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
3227 | return ret; |
3228 | } | |
3229 | ||
3230 | static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length, | |
3231 | void *data) | |
3232 | { | |
3233 | struct drm_property_blob *blob; | |
6bfc56aa | 3234 | int ret; |
f453ba04 DA |
3235 | |
3236 | if (!length || !data) | |
3237 | return NULL; | |
3238 | ||
3239 | blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); | |
3240 | if (!blob) | |
3241 | return NULL; | |
3242 | ||
6bfc56aa VS |
3243 | ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB); |
3244 | if (ret) { | |
3245 | kfree(blob); | |
3246 | return NULL; | |
3247 | } | |
3248 | ||
f453ba04 DA |
3249 | blob->length = length; |
3250 | ||
3251 | memcpy(blob->data, data, length); | |
3252 | ||
f453ba04 DA |
3253 | list_add_tail(&blob->head, &dev->mode_config.property_blob_list); |
3254 | return blob; | |
3255 | } | |
3256 | ||
3257 | static void drm_property_destroy_blob(struct drm_device *dev, | |
3258 | struct drm_property_blob *blob) | |
3259 | { | |
3260 | drm_mode_object_put(dev, &blob->base); | |
3261 | list_del(&blob->head); | |
3262 | kfree(blob); | |
3263 | } | |
3264 | ||
3265 | int drm_mode_getblob_ioctl(struct drm_device *dev, | |
3266 | void *data, struct drm_file *file_priv) | |
3267 | { | |
3268 | struct drm_mode_object *obj; | |
3269 | struct drm_mode_get_blob *out_resp = data; | |
3270 | struct drm_property_blob *blob; | |
3271 | int ret = 0; | |
81f6c7f8 | 3272 | void __user *blob_ptr; |
f453ba04 | 3273 | |
fb3b06c8 DA |
3274 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3275 | return -EINVAL; | |
3276 | ||
84849903 | 3277 | drm_modeset_lock_all(dev); |
f453ba04 DA |
3278 | obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB); |
3279 | if (!obj) { | |
3280 | ret = -EINVAL; | |
3281 | goto done; | |
3282 | } | |
3283 | blob = obj_to_blob(obj); | |
3284 | ||
3285 | if (out_resp->length == blob->length) { | |
81f6c7f8 | 3286 | blob_ptr = (void __user *)(unsigned long)out_resp->data; |
f453ba04 DA |
3287 | if (copy_to_user(blob_ptr, blob->data, blob->length)){ |
3288 | ret = -EFAULT; | |
3289 | goto done; | |
3290 | } | |
3291 | } | |
3292 | out_resp->length = blob->length; | |
3293 | ||
3294 | done: | |
84849903 | 3295 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
3296 | return ret; |
3297 | } | |
3298 | ||
3299 | int drm_mode_connector_update_edid_property(struct drm_connector *connector, | |
3300 | struct edid *edid) | |
3301 | { | |
3302 | struct drm_device *dev = connector->dev; | |
4a1b0714 | 3303 | int ret, size; |
f453ba04 DA |
3304 | |
3305 | if (connector->edid_blob_ptr) | |
3306 | drm_property_destroy_blob(dev, connector->edid_blob_ptr); | |
3307 | ||
3308 | /* Delete edid, when there is none. */ | |
3309 | if (!edid) { | |
3310 | connector->edid_blob_ptr = NULL; | |
58495563 | 3311 | ret = drm_object_property_set_value(&connector->base, dev->mode_config.edid_property, 0); |
f453ba04 DA |
3312 | return ret; |
3313 | } | |
3314 | ||
7466f4cc AJ |
3315 | size = EDID_LENGTH * (1 + edid->extensions); |
3316 | connector->edid_blob_ptr = drm_property_create_blob(connector->dev, | |
3317 | size, edid); | |
e655d122 SK |
3318 | if (!connector->edid_blob_ptr) |
3319 | return -EINVAL; | |
f453ba04 | 3320 | |
58495563 | 3321 | ret = drm_object_property_set_value(&connector->base, |
f453ba04 DA |
3322 | dev->mode_config.edid_property, |
3323 | connector->edid_blob_ptr->base.id); | |
3324 | ||
3325 | return ret; | |
3326 | } | |
3327 | EXPORT_SYMBOL(drm_mode_connector_update_edid_property); | |
3328 | ||
26a34815 | 3329 | static bool drm_property_change_is_valid(struct drm_property *property, |
592c20ee | 3330 | uint64_t value) |
26a34815 PZ |
3331 | { |
3332 | if (property->flags & DRM_MODE_PROP_IMMUTABLE) | |
3333 | return false; | |
3334 | if (property->flags & DRM_MODE_PROP_RANGE) { | |
3335 | if (value < property->values[0] || value > property->values[1]) | |
3336 | return false; | |
3337 | return true; | |
49e27545 RC |
3338 | } else if (property->flags & DRM_MODE_PROP_BITMASK) { |
3339 | int i; | |
592c20ee | 3340 | uint64_t valid_mask = 0; |
49e27545 RC |
3341 | for (i = 0; i < property->num_values; i++) |
3342 | valid_mask |= (1ULL << property->values[i]); | |
3343 | return !(value & ~valid_mask); | |
c4a56750 VS |
3344 | } else if (property->flags & DRM_MODE_PROP_BLOB) { |
3345 | /* Only the driver knows */ | |
3346 | return true; | |
26a34815 PZ |
3347 | } else { |
3348 | int i; | |
3349 | for (i = 0; i < property->num_values; i++) | |
3350 | if (property->values[i] == value) | |
3351 | return true; | |
3352 | return false; | |
3353 | } | |
3354 | } | |
3355 | ||
f453ba04 DA |
3356 | int drm_mode_connector_property_set_ioctl(struct drm_device *dev, |
3357 | void *data, struct drm_file *file_priv) | |
3358 | { | |
0057d8dd PZ |
3359 | struct drm_mode_connector_set_property *conn_set_prop = data; |
3360 | struct drm_mode_obj_set_property obj_set_prop = { | |
3361 | .value = conn_set_prop->value, | |
3362 | .prop_id = conn_set_prop->prop_id, | |
3363 | .obj_id = conn_set_prop->connector_id, | |
3364 | .obj_type = DRM_MODE_OBJECT_CONNECTOR | |
3365 | }; | |
fb3b06c8 | 3366 | |
0057d8dd PZ |
3367 | /* It does all the locking and checking we need */ |
3368 | return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv); | |
f453ba04 DA |
3369 | } |
3370 | ||
c543188a PZ |
3371 | static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, |
3372 | struct drm_property *property, | |
3373 | uint64_t value) | |
3374 | { | |
3375 | int ret = -EINVAL; | |
3376 | struct drm_connector *connector = obj_to_connector(obj); | |
3377 | ||
3378 | /* Do DPMS ourselves */ | |
3379 | if (property == connector->dev->mode_config.dpms_property) { | |
3380 | if (connector->funcs->dpms) | |
3381 | (*connector->funcs->dpms)(connector, (int)value); | |
3382 | ret = 0; | |
3383 | } else if (connector->funcs->set_property) | |
3384 | ret = connector->funcs->set_property(connector, property, value); | |
3385 | ||
3386 | /* store the property value if successful */ | |
3387 | if (!ret) | |
58495563 | 3388 | drm_object_property_set_value(&connector->base, property, value); |
c543188a PZ |
3389 | return ret; |
3390 | } | |
3391 | ||
bffd9de0 PZ |
3392 | static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, |
3393 | struct drm_property *property, | |
3394 | uint64_t value) | |
3395 | { | |
3396 | int ret = -EINVAL; | |
3397 | struct drm_crtc *crtc = obj_to_crtc(obj); | |
3398 | ||
3399 | if (crtc->funcs->set_property) | |
3400 | ret = crtc->funcs->set_property(crtc, property, value); | |
3401 | if (!ret) | |
3402 | drm_object_property_set_value(obj, property, value); | |
3403 | ||
3404 | return ret; | |
3405 | } | |
3406 | ||
4d93914a RC |
3407 | static int drm_mode_plane_set_obj_prop(struct drm_mode_object *obj, |
3408 | struct drm_property *property, | |
3409 | uint64_t value) | |
3410 | { | |
3411 | int ret = -EINVAL; | |
3412 | struct drm_plane *plane = obj_to_plane(obj); | |
3413 | ||
3414 | if (plane->funcs->set_property) | |
3415 | ret = plane->funcs->set_property(plane, property, value); | |
3416 | if (!ret) | |
3417 | drm_object_property_set_value(obj, property, value); | |
3418 | ||
3419 | return ret; | |
3420 | } | |
3421 | ||
c543188a PZ |
3422 | int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, |
3423 | struct drm_file *file_priv) | |
3424 | { | |
3425 | struct drm_mode_obj_get_properties *arg = data; | |
3426 | struct drm_mode_object *obj; | |
3427 | int ret = 0; | |
3428 | int i; | |
3429 | int copied = 0; | |
3430 | int props_count = 0; | |
3431 | uint32_t __user *props_ptr; | |
3432 | uint64_t __user *prop_values_ptr; | |
3433 | ||
3434 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
3435 | return -EINVAL; | |
3436 | ||
84849903 | 3437 | drm_modeset_lock_all(dev); |
c543188a PZ |
3438 | |
3439 | obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); | |
3440 | if (!obj) { | |
3441 | ret = -EINVAL; | |
3442 | goto out; | |
3443 | } | |
3444 | if (!obj->properties) { | |
3445 | ret = -EINVAL; | |
3446 | goto out; | |
3447 | } | |
3448 | ||
7f88a9be | 3449 | props_count = obj->properties->count; |
c543188a PZ |
3450 | |
3451 | /* This ioctl is called twice, once to determine how much space is | |
3452 | * needed, and the 2nd time to fill it. */ | |
3453 | if ((arg->count_props >= props_count) && props_count) { | |
3454 | copied = 0; | |
3455 | props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr); | |
3456 | prop_values_ptr = (uint64_t __user *)(unsigned long) | |
3457 | (arg->prop_values_ptr); | |
3458 | for (i = 0; i < props_count; i++) { | |
3459 | if (put_user(obj->properties->ids[i], | |
3460 | props_ptr + copied)) { | |
3461 | ret = -EFAULT; | |
3462 | goto out; | |
3463 | } | |
3464 | if (put_user(obj->properties->values[i], | |
3465 | prop_values_ptr + copied)) { | |
3466 | ret = -EFAULT; | |
3467 | goto out; | |
3468 | } | |
3469 | copied++; | |
3470 | } | |
3471 | } | |
3472 | arg->count_props = props_count; | |
3473 | out: | |
84849903 | 3474 | drm_modeset_unlock_all(dev); |
c543188a PZ |
3475 | return ret; |
3476 | } | |
3477 | ||
3478 | int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, | |
3479 | struct drm_file *file_priv) | |
3480 | { | |
3481 | struct drm_mode_obj_set_property *arg = data; | |
3482 | struct drm_mode_object *arg_obj; | |
3483 | struct drm_mode_object *prop_obj; | |
3484 | struct drm_property *property; | |
3485 | int ret = -EINVAL; | |
3486 | int i; | |
3487 | ||
3488 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
3489 | return -EINVAL; | |
3490 | ||
84849903 | 3491 | drm_modeset_lock_all(dev); |
c543188a PZ |
3492 | |
3493 | arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); | |
3494 | if (!arg_obj) | |
3495 | goto out; | |
3496 | if (!arg_obj->properties) | |
3497 | goto out; | |
3498 | ||
7f88a9be | 3499 | for (i = 0; i < arg_obj->properties->count; i++) |
c543188a PZ |
3500 | if (arg_obj->properties->ids[i] == arg->prop_id) |
3501 | break; | |
3502 | ||
7f88a9be | 3503 | if (i == arg_obj->properties->count) |
c543188a PZ |
3504 | goto out; |
3505 | ||
3506 | prop_obj = drm_mode_object_find(dev, arg->prop_id, | |
3507 | DRM_MODE_OBJECT_PROPERTY); | |
3508 | if (!prop_obj) | |
3509 | goto out; | |
3510 | property = obj_to_property(prop_obj); | |
3511 | ||
3512 | if (!drm_property_change_is_valid(property, arg->value)) | |
3513 | goto out; | |
3514 | ||
3515 | switch (arg_obj->type) { | |
3516 | case DRM_MODE_OBJECT_CONNECTOR: | |
3517 | ret = drm_mode_connector_set_obj_prop(arg_obj, property, | |
3518 | arg->value); | |
3519 | break; | |
bffd9de0 PZ |
3520 | case DRM_MODE_OBJECT_CRTC: |
3521 | ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value); | |
3522 | break; | |
4d93914a RC |
3523 | case DRM_MODE_OBJECT_PLANE: |
3524 | ret = drm_mode_plane_set_obj_prop(arg_obj, property, arg->value); | |
3525 | break; | |
c543188a PZ |
3526 | } |
3527 | ||
3528 | out: | |
84849903 | 3529 | drm_modeset_unlock_all(dev); |
c543188a PZ |
3530 | return ret; |
3531 | } | |
3532 | ||
f453ba04 DA |
3533 | int drm_mode_connector_attach_encoder(struct drm_connector *connector, |
3534 | struct drm_encoder *encoder) | |
3535 | { | |
3536 | int i; | |
3537 | ||
3538 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { | |
3539 | if (connector->encoder_ids[i] == 0) { | |
3540 | connector->encoder_ids[i] = encoder->base.id; | |
3541 | return 0; | |
3542 | } | |
3543 | } | |
3544 | return -ENOMEM; | |
3545 | } | |
3546 | EXPORT_SYMBOL(drm_mode_connector_attach_encoder); | |
3547 | ||
3548 | void drm_mode_connector_detach_encoder(struct drm_connector *connector, | |
3549 | struct drm_encoder *encoder) | |
3550 | { | |
3551 | int i; | |
3552 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { | |
3553 | if (connector->encoder_ids[i] == encoder->base.id) { | |
3554 | connector->encoder_ids[i] = 0; | |
3555 | if (connector->encoder == encoder) | |
3556 | connector->encoder = NULL; | |
3557 | break; | |
3558 | } | |
3559 | } | |
3560 | } | |
3561 | EXPORT_SYMBOL(drm_mode_connector_detach_encoder); | |
3562 | ||
4cae5b84 | 3563 | int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, |
f453ba04 DA |
3564 | int gamma_size) |
3565 | { | |
3566 | crtc->gamma_size = gamma_size; | |
3567 | ||
3568 | crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL); | |
3569 | if (!crtc->gamma_store) { | |
3570 | crtc->gamma_size = 0; | |
4cae5b84 | 3571 | return -ENOMEM; |
f453ba04 DA |
3572 | } |
3573 | ||
4cae5b84 | 3574 | return 0; |
f453ba04 DA |
3575 | } |
3576 | EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); | |
3577 | ||
3578 | int drm_mode_gamma_set_ioctl(struct drm_device *dev, | |
3579 | void *data, struct drm_file *file_priv) | |
3580 | { | |
3581 | struct drm_mode_crtc_lut *crtc_lut = data; | |
3582 | struct drm_mode_object *obj; | |
3583 | struct drm_crtc *crtc; | |
3584 | void *r_base, *g_base, *b_base; | |
3585 | int size; | |
3586 | int ret = 0; | |
3587 | ||
fb3b06c8 DA |
3588 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3589 | return -EINVAL; | |
3590 | ||
84849903 | 3591 | drm_modeset_lock_all(dev); |
f453ba04 DA |
3592 | obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC); |
3593 | if (!obj) { | |
3594 | ret = -EINVAL; | |
3595 | goto out; | |
3596 | } | |
3597 | crtc = obj_to_crtc(obj); | |
3598 | ||
ebe0f244 LP |
3599 | if (crtc->funcs->gamma_set == NULL) { |
3600 | ret = -ENOSYS; | |
3601 | goto out; | |
3602 | } | |
3603 | ||
f453ba04 DA |
3604 | /* memcpy into gamma store */ |
3605 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
3606 | ret = -EINVAL; | |
3607 | goto out; | |
3608 | } | |
3609 | ||
3610 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
3611 | r_base = crtc->gamma_store; | |
3612 | if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { | |
3613 | ret = -EFAULT; | |
3614 | goto out; | |
3615 | } | |
3616 | ||
3617 | g_base = r_base + size; | |
3618 | if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { | |
3619 | ret = -EFAULT; | |
3620 | goto out; | |
3621 | } | |
3622 | ||
3623 | b_base = g_base + size; | |
3624 | if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { | |
3625 | ret = -EFAULT; | |
3626 | goto out; | |
3627 | } | |
3628 | ||
7203425a | 3629 | crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); |
f453ba04 DA |
3630 | |
3631 | out: | |
84849903 | 3632 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
3633 | return ret; |
3634 | ||
3635 | } | |
3636 | ||
3637 | int drm_mode_gamma_get_ioctl(struct drm_device *dev, | |
3638 | void *data, struct drm_file *file_priv) | |
3639 | { | |
3640 | struct drm_mode_crtc_lut *crtc_lut = data; | |
3641 | struct drm_mode_object *obj; | |
3642 | struct drm_crtc *crtc; | |
3643 | void *r_base, *g_base, *b_base; | |
3644 | int size; | |
3645 | int ret = 0; | |
3646 | ||
fb3b06c8 DA |
3647 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3648 | return -EINVAL; | |
3649 | ||
84849903 | 3650 | drm_modeset_lock_all(dev); |
f453ba04 DA |
3651 | obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC); |
3652 | if (!obj) { | |
3653 | ret = -EINVAL; | |
3654 | goto out; | |
3655 | } | |
3656 | crtc = obj_to_crtc(obj); | |
3657 | ||
3658 | /* memcpy into gamma store */ | |
3659 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
3660 | ret = -EINVAL; | |
3661 | goto out; | |
3662 | } | |
3663 | ||
3664 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
3665 | r_base = crtc->gamma_store; | |
3666 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { | |
3667 | ret = -EFAULT; | |
3668 | goto out; | |
3669 | } | |
3670 | ||
3671 | g_base = r_base + size; | |
3672 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { | |
3673 | ret = -EFAULT; | |
3674 | goto out; | |
3675 | } | |
3676 | ||
3677 | b_base = g_base + size; | |
3678 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { | |
3679 | ret = -EFAULT; | |
3680 | goto out; | |
3681 | } | |
3682 | out: | |
84849903 | 3683 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
3684 | return ret; |
3685 | } | |
d91d8a3f KH |
3686 | |
3687 | int drm_mode_page_flip_ioctl(struct drm_device *dev, | |
3688 | void *data, struct drm_file *file_priv) | |
3689 | { | |
3690 | struct drm_mode_crtc_page_flip *page_flip = data; | |
3691 | struct drm_mode_object *obj; | |
3692 | struct drm_crtc *crtc; | |
b0d12325 | 3693 | struct drm_framebuffer *fb = NULL, *old_fb = NULL; |
d91d8a3f KH |
3694 | struct drm_pending_vblank_event *e = NULL; |
3695 | unsigned long flags; | |
7c80e128 | 3696 | int hdisplay, vdisplay; |
d91d8a3f KH |
3697 | int ret = -EINVAL; |
3698 | ||
3699 | if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS || | |
3700 | page_flip->reserved != 0) | |
3701 | return -EINVAL; | |
3702 | ||
d91d8a3f KH |
3703 | obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC); |
3704 | if (!obj) | |
b4d5e7d1 | 3705 | return -EINVAL; |
d91d8a3f KH |
3706 | crtc = obj_to_crtc(obj); |
3707 | ||
b4d5e7d1 | 3708 | mutex_lock(&crtc->mutex); |
90c1efdd CW |
3709 | if (crtc->fb == NULL) { |
3710 | /* The framebuffer is currently unbound, presumably | |
3711 | * due to a hotplug event, that userspace has not | |
3712 | * yet discovered. | |
3713 | */ | |
3714 | ret = -EBUSY; | |
3715 | goto out; | |
3716 | } | |
3717 | ||
d91d8a3f KH |
3718 | if (crtc->funcs->page_flip == NULL) |
3719 | goto out; | |
3720 | ||
786b99ed DV |
3721 | fb = drm_framebuffer_lookup(dev, page_flip->fb_id); |
3722 | if (!fb) | |
d91d8a3f | 3723 | goto out; |
d91d8a3f | 3724 | |
7c80e128 RC |
3725 | hdisplay = crtc->mode.hdisplay; |
3726 | vdisplay = crtc->mode.vdisplay; | |
3727 | ||
3728 | if (crtc->invert_dimensions) | |
3729 | swap(hdisplay, vdisplay); | |
3730 | ||
3731 | if (hdisplay > fb->width || | |
3732 | vdisplay > fb->height || | |
3733 | crtc->x > fb->width - hdisplay || | |
3734 | crtc->y > fb->height - vdisplay) { | |
3735 | DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n", | |
3736 | fb->width, fb->height, hdisplay, vdisplay, crtc->x, crtc->y, | |
3737 | crtc->invert_dimensions ? " (inverted)" : ""); | |
5f61bb42 VS |
3738 | ret = -ENOSPC; |
3739 | goto out; | |
3740 | } | |
3741 | ||
d91d8a3f KH |
3742 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { |
3743 | ret = -ENOMEM; | |
3744 | spin_lock_irqsave(&dev->event_lock, flags); | |
3745 | if (file_priv->event_space < sizeof e->event) { | |
3746 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
3747 | goto out; | |
3748 | } | |
3749 | file_priv->event_space -= sizeof e->event; | |
3750 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
3751 | ||
3752 | e = kzalloc(sizeof *e, GFP_KERNEL); | |
3753 | if (e == NULL) { | |
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 | goto out; | |
3758 | } | |
3759 | ||
7bd4d7be | 3760 | e->event.base.type = DRM_EVENT_FLIP_COMPLETE; |
d91d8a3f KH |
3761 | e->event.base.length = sizeof e->event; |
3762 | e->event.user_data = page_flip->user_data; | |
3763 | e->base.event = &e->event.base; | |
3764 | e->base.file_priv = file_priv; | |
3765 | e->base.destroy = | |
3766 | (void (*) (struct drm_pending_event *)) kfree; | |
3767 | } | |
3768 | ||
b0d12325 | 3769 | old_fb = crtc->fb; |
d91d8a3f KH |
3770 | ret = crtc->funcs->page_flip(crtc, fb, e); |
3771 | if (ret) { | |
aef6a7ee JS |
3772 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { |
3773 | spin_lock_irqsave(&dev->event_lock, flags); | |
3774 | file_priv->event_space += sizeof e->event; | |
3775 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
3776 | kfree(e); | |
3777 | } | |
b0d12325 DV |
3778 | /* Keep the old fb, don't unref it. */ |
3779 | old_fb = NULL; | |
3780 | } else { | |
8cf1e981 TR |
3781 | /* |
3782 | * Warn if the driver hasn't properly updated the crtc->fb | |
3783 | * field to reflect that the new framebuffer is now used. | |
3784 | * Failing to do so will screw with the reference counting | |
3785 | * on framebuffers. | |
3786 | */ | |
3787 | WARN_ON(crtc->fb != fb); | |
b0d12325 DV |
3788 | /* Unref only the old framebuffer. */ |
3789 | fb = NULL; | |
d91d8a3f KH |
3790 | } |
3791 | ||
3792 | out: | |
b0d12325 DV |
3793 | if (fb) |
3794 | drm_framebuffer_unreference(fb); | |
3795 | if (old_fb) | |
3796 | drm_framebuffer_unreference(old_fb); | |
b4d5e7d1 DV |
3797 | mutex_unlock(&crtc->mutex); |
3798 | ||
d91d8a3f KH |
3799 | return ret; |
3800 | } | |
eb033556 CW |
3801 | |
3802 | void drm_mode_config_reset(struct drm_device *dev) | |
3803 | { | |
3804 | struct drm_crtc *crtc; | |
3805 | struct drm_encoder *encoder; | |
3806 | struct drm_connector *connector; | |
3807 | ||
3808 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) | |
3809 | if (crtc->funcs->reset) | |
3810 | crtc->funcs->reset(crtc); | |
3811 | ||
3812 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) | |
3813 | if (encoder->funcs->reset) | |
3814 | encoder->funcs->reset(encoder); | |
3815 | ||
5e2cb2f6 DV |
3816 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
3817 | connector->status = connector_status_unknown; | |
3818 | ||
eb033556 CW |
3819 | if (connector->funcs->reset) |
3820 | connector->funcs->reset(connector); | |
5e2cb2f6 | 3821 | } |
eb033556 CW |
3822 | } |
3823 | EXPORT_SYMBOL(drm_mode_config_reset); | |
ff72145b DA |
3824 | |
3825 | int drm_mode_create_dumb_ioctl(struct drm_device *dev, | |
3826 | void *data, struct drm_file *file_priv) | |
3827 | { | |
3828 | struct drm_mode_create_dumb *args = data; | |
3829 | ||
3830 | if (!dev->driver->dumb_create) | |
3831 | return -ENOSYS; | |
3832 | return dev->driver->dumb_create(file_priv, dev, args); | |
3833 | } | |
3834 | ||
3835 | int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, | |
3836 | void *data, struct drm_file *file_priv) | |
3837 | { | |
3838 | struct drm_mode_map_dumb *args = data; | |
3839 | ||
3840 | /* call driver ioctl to get mmap offset */ | |
3841 | if (!dev->driver->dumb_map_offset) | |
3842 | return -ENOSYS; | |
3843 | ||
3844 | return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); | |
3845 | } | |
3846 | ||
3847 | int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, | |
3848 | void *data, struct drm_file *file_priv) | |
3849 | { | |
3850 | struct drm_mode_destroy_dumb *args = data; | |
3851 | ||
3852 | if (!dev->driver->dumb_destroy) | |
3853 | return -ENOSYS; | |
3854 | ||
3855 | return dev->driver->dumb_destroy(file_priv, dev, args->handle); | |
3856 | } | |
248dbc23 DA |
3857 | |
3858 | /* | |
3859 | * Just need to support RGB formats here for compat with code that doesn't | |
3860 | * use pixel formats directly yet. | |
3861 | */ | |
3862 | void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, | |
3863 | int *bpp) | |
3864 | { | |
3865 | switch (format) { | |
c51a6bc5 | 3866 | case DRM_FORMAT_C8: |
04b3924d VS |
3867 | case DRM_FORMAT_RGB332: |
3868 | case DRM_FORMAT_BGR233: | |
248dbc23 DA |
3869 | *depth = 8; |
3870 | *bpp = 8; | |
3871 | break; | |
04b3924d VS |
3872 | case DRM_FORMAT_XRGB1555: |
3873 | case DRM_FORMAT_XBGR1555: | |
3874 | case DRM_FORMAT_RGBX5551: | |
3875 | case DRM_FORMAT_BGRX5551: | |
3876 | case DRM_FORMAT_ARGB1555: | |
3877 | case DRM_FORMAT_ABGR1555: | |
3878 | case DRM_FORMAT_RGBA5551: | |
3879 | case DRM_FORMAT_BGRA5551: | |
248dbc23 DA |
3880 | *depth = 15; |
3881 | *bpp = 16; | |
3882 | break; | |
04b3924d VS |
3883 | case DRM_FORMAT_RGB565: |
3884 | case DRM_FORMAT_BGR565: | |
248dbc23 DA |
3885 | *depth = 16; |
3886 | *bpp = 16; | |
3887 | break; | |
04b3924d VS |
3888 | case DRM_FORMAT_RGB888: |
3889 | case DRM_FORMAT_BGR888: | |
3890 | *depth = 24; | |
3891 | *bpp = 24; | |
3892 | break; | |
3893 | case DRM_FORMAT_XRGB8888: | |
3894 | case DRM_FORMAT_XBGR8888: | |
3895 | case DRM_FORMAT_RGBX8888: | |
3896 | case DRM_FORMAT_BGRX8888: | |
248dbc23 DA |
3897 | *depth = 24; |
3898 | *bpp = 32; | |
3899 | break; | |
04b3924d VS |
3900 | case DRM_FORMAT_XRGB2101010: |
3901 | case DRM_FORMAT_XBGR2101010: | |
3902 | case DRM_FORMAT_RGBX1010102: | |
3903 | case DRM_FORMAT_BGRX1010102: | |
3904 | case DRM_FORMAT_ARGB2101010: | |
3905 | case DRM_FORMAT_ABGR2101010: | |
3906 | case DRM_FORMAT_RGBA1010102: | |
3907 | case DRM_FORMAT_BGRA1010102: | |
248dbc23 DA |
3908 | *depth = 30; |
3909 | *bpp = 32; | |
3910 | break; | |
04b3924d VS |
3911 | case DRM_FORMAT_ARGB8888: |
3912 | case DRM_FORMAT_ABGR8888: | |
3913 | case DRM_FORMAT_RGBA8888: | |
3914 | case DRM_FORMAT_BGRA8888: | |
248dbc23 DA |
3915 | *depth = 32; |
3916 | *bpp = 32; | |
3917 | break; | |
3918 | default: | |
3919 | DRM_DEBUG_KMS("unsupported pixel format\n"); | |
3920 | *depth = 0; | |
3921 | *bpp = 0; | |
3922 | break; | |
3923 | } | |
3924 | } | |
3925 | EXPORT_SYMBOL(drm_fb_get_bpp_depth); | |
141670e9 VS |
3926 | |
3927 | /** | |
3928 | * drm_format_num_planes - get the number of planes for format | |
3929 | * @format: pixel format (DRM_FORMAT_*) | |
3930 | * | |
3931 | * RETURNS: | |
3932 | * The number of planes used by the specified pixel format. | |
3933 | */ | |
3934 | int drm_format_num_planes(uint32_t format) | |
3935 | { | |
3936 | switch (format) { | |
3937 | case DRM_FORMAT_YUV410: | |
3938 | case DRM_FORMAT_YVU410: | |
3939 | case DRM_FORMAT_YUV411: | |
3940 | case DRM_FORMAT_YVU411: | |
3941 | case DRM_FORMAT_YUV420: | |
3942 | case DRM_FORMAT_YVU420: | |
3943 | case DRM_FORMAT_YUV422: | |
3944 | case DRM_FORMAT_YVU422: | |
3945 | case DRM_FORMAT_YUV444: | |
3946 | case DRM_FORMAT_YVU444: | |
3947 | return 3; | |
3948 | case DRM_FORMAT_NV12: | |
3949 | case DRM_FORMAT_NV21: | |
3950 | case DRM_FORMAT_NV16: | |
3951 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
3952 | case DRM_FORMAT_NV24: |
3953 | case DRM_FORMAT_NV42: | |
141670e9 VS |
3954 | return 2; |
3955 | default: | |
3956 | return 1; | |
3957 | } | |
3958 | } | |
3959 | EXPORT_SYMBOL(drm_format_num_planes); | |
5a86bd55 VS |
3960 | |
3961 | /** | |
3962 | * drm_format_plane_cpp - determine the bytes per pixel value | |
3963 | * @format: pixel format (DRM_FORMAT_*) | |
3964 | * @plane: plane index | |
3965 | * | |
3966 | * RETURNS: | |
3967 | * The bytes per pixel value for the specified plane. | |
3968 | */ | |
3969 | int drm_format_plane_cpp(uint32_t format, int plane) | |
3970 | { | |
3971 | unsigned int depth; | |
3972 | int bpp; | |
3973 | ||
3974 | if (plane >= drm_format_num_planes(format)) | |
3975 | return 0; | |
3976 | ||
3977 | switch (format) { | |
3978 | case DRM_FORMAT_YUYV: | |
3979 | case DRM_FORMAT_YVYU: | |
3980 | case DRM_FORMAT_UYVY: | |
3981 | case DRM_FORMAT_VYUY: | |
3982 | return 2; | |
3983 | case DRM_FORMAT_NV12: | |
3984 | case DRM_FORMAT_NV21: | |
3985 | case DRM_FORMAT_NV16: | |
3986 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
3987 | case DRM_FORMAT_NV24: |
3988 | case DRM_FORMAT_NV42: | |
5a86bd55 VS |
3989 | return plane ? 2 : 1; |
3990 | case DRM_FORMAT_YUV410: | |
3991 | case DRM_FORMAT_YVU410: | |
3992 | case DRM_FORMAT_YUV411: | |
3993 | case DRM_FORMAT_YVU411: | |
3994 | case DRM_FORMAT_YUV420: | |
3995 | case DRM_FORMAT_YVU420: | |
3996 | case DRM_FORMAT_YUV422: | |
3997 | case DRM_FORMAT_YVU422: | |
3998 | case DRM_FORMAT_YUV444: | |
3999 | case DRM_FORMAT_YVU444: | |
4000 | return 1; | |
4001 | default: | |
4002 | drm_fb_get_bpp_depth(format, &depth, &bpp); | |
4003 | return bpp >> 3; | |
4004 | } | |
4005 | } | |
4006 | EXPORT_SYMBOL(drm_format_plane_cpp); | |
01b68b04 VS |
4007 | |
4008 | /** | |
4009 | * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor | |
4010 | * @format: pixel format (DRM_FORMAT_*) | |
4011 | * | |
4012 | * RETURNS: | |
4013 | * The horizontal chroma subsampling factor for the | |
4014 | * specified pixel format. | |
4015 | */ | |
4016 | int drm_format_horz_chroma_subsampling(uint32_t format) | |
4017 | { | |
4018 | switch (format) { | |
4019 | case DRM_FORMAT_YUV411: | |
4020 | case DRM_FORMAT_YVU411: | |
4021 | case DRM_FORMAT_YUV410: | |
4022 | case DRM_FORMAT_YVU410: | |
4023 | return 4; | |
4024 | case DRM_FORMAT_YUYV: | |
4025 | case DRM_FORMAT_YVYU: | |
4026 | case DRM_FORMAT_UYVY: | |
4027 | case DRM_FORMAT_VYUY: | |
4028 | case DRM_FORMAT_NV12: | |
4029 | case DRM_FORMAT_NV21: | |
4030 | case DRM_FORMAT_NV16: | |
4031 | case DRM_FORMAT_NV61: | |
4032 | case DRM_FORMAT_YUV422: | |
4033 | case DRM_FORMAT_YVU422: | |
4034 | case DRM_FORMAT_YUV420: | |
4035 | case DRM_FORMAT_YVU420: | |
4036 | return 2; | |
4037 | default: | |
4038 | return 1; | |
4039 | } | |
4040 | } | |
4041 | EXPORT_SYMBOL(drm_format_horz_chroma_subsampling); | |
4042 | ||
4043 | /** | |
4044 | * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor | |
4045 | * @format: pixel format (DRM_FORMAT_*) | |
4046 | * | |
4047 | * RETURNS: | |
4048 | * The vertical chroma subsampling factor for the | |
4049 | * specified pixel format. | |
4050 | */ | |
4051 | int drm_format_vert_chroma_subsampling(uint32_t format) | |
4052 | { | |
4053 | switch (format) { | |
4054 | case DRM_FORMAT_YUV410: | |
4055 | case DRM_FORMAT_YVU410: | |
4056 | return 4; | |
4057 | case DRM_FORMAT_YUV420: | |
4058 | case DRM_FORMAT_YVU420: | |
4059 | case DRM_FORMAT_NV12: | |
4060 | case DRM_FORMAT_NV21: | |
4061 | return 2; | |
4062 | default: | |
4063 | return 1; | |
4064 | } | |
4065 | } | |
4066 | EXPORT_SYMBOL(drm_format_vert_chroma_subsampling); |