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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 | */ | |
6ba6d03e | 32 | #include <linux/ctype.h> |
f453ba04 | 33 | #include <linux/list.h> |
5a0e3ad6 | 34 | #include <linux/slab.h> |
2d1a8a48 | 35 | #include <linux/export.h> |
760285e7 DH |
36 | #include <drm/drmP.h> |
37 | #include <drm/drm_crtc.h> | |
38 | #include <drm/drm_edid.h> | |
39 | #include <drm/drm_fourcc.h> | |
f453ba04 | 40 | |
8bd441b2 DV |
41 | #include "drm_crtc_internal.h" |
42 | ||
84849903 DV |
43 | /** |
44 | * drm_modeset_lock_all - take all modeset locks | |
45 | * @dev: drm device | |
46 | * | |
47 | * This function takes all modeset locks, suitable where a more fine-grained | |
c8e32cc1 DV |
48 | * scheme isn't (yet) implemented. Locks must be dropped with |
49 | * drm_modeset_unlock_all. | |
84849903 DV |
50 | */ |
51 | void drm_modeset_lock_all(struct drm_device *dev) | |
52 | { | |
29494c17 DV |
53 | struct drm_crtc *crtc; |
54 | ||
84849903 | 55 | mutex_lock(&dev->mode_config.mutex); |
29494c17 DV |
56 | |
57 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) | |
58 | mutex_lock_nest_lock(&crtc->mutex, &dev->mode_config.mutex); | |
84849903 DV |
59 | } |
60 | EXPORT_SYMBOL(drm_modeset_lock_all); | |
61 | ||
62 | /** | |
63 | * drm_modeset_unlock_all - drop all modeset locks | |
64 | * @dev: device | |
c8e32cc1 DV |
65 | * |
66 | * This function drop all modeset locks taken by drm_modeset_lock_all. | |
84849903 DV |
67 | */ |
68 | void drm_modeset_unlock_all(struct drm_device *dev) | |
69 | { | |
29494c17 DV |
70 | struct drm_crtc *crtc; |
71 | ||
72 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) | |
73 | mutex_unlock(&crtc->mutex); | |
74 | ||
84849903 DV |
75 | mutex_unlock(&dev->mode_config.mutex); |
76 | } | |
77 | EXPORT_SYMBOL(drm_modeset_unlock_all); | |
78 | ||
6aed8ec3 DV |
79 | /** |
80 | * drm_warn_on_modeset_not_all_locked - check that all modeset locks are locked | |
81 | * @dev: device | |
c8e32cc1 DV |
82 | * |
83 | * Useful as a debug assert. | |
6aed8ec3 DV |
84 | */ |
85 | void drm_warn_on_modeset_not_all_locked(struct drm_device *dev) | |
86 | { | |
87 | struct drm_crtc *crtc; | |
88 | ||
a9b054e8 DV |
89 | /* Locking is currently fubar in the panic handler. */ |
90 | if (oops_in_progress) | |
91 | return; | |
92 | ||
6aed8ec3 DV |
93 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) |
94 | WARN_ON(!mutex_is_locked(&crtc->mutex)); | |
95 | ||
96 | WARN_ON(!mutex_is_locked(&dev->mode_config.mutex)); | |
97 | } | |
98 | EXPORT_SYMBOL(drm_warn_on_modeset_not_all_locked); | |
99 | ||
f453ba04 DA |
100 | /* Avoid boilerplate. I'm tired of typing. */ |
101 | #define DRM_ENUM_NAME_FN(fnname, list) \ | |
d20d3174 | 102 | const char *fnname(int val) \ |
f453ba04 DA |
103 | { \ |
104 | int i; \ | |
105 | for (i = 0; i < ARRAY_SIZE(list); i++) { \ | |
106 | if (list[i].type == val) \ | |
107 | return list[i].name; \ | |
108 | } \ | |
109 | return "(unknown)"; \ | |
110 | } | |
111 | ||
112 | /* | |
113 | * Global properties | |
114 | */ | |
d20d3174 | 115 | static const struct drm_prop_enum_list drm_dpms_enum_list[] = |
f453ba04 DA |
116 | { { DRM_MODE_DPMS_ON, "On" }, |
117 | { DRM_MODE_DPMS_STANDBY, "Standby" }, | |
118 | { DRM_MODE_DPMS_SUSPEND, "Suspend" }, | |
119 | { DRM_MODE_DPMS_OFF, "Off" } | |
120 | }; | |
121 | ||
122 | DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list) | |
123 | ||
9922ab5a RC |
124 | static const struct drm_prop_enum_list drm_plane_type_enum_list[] = |
125 | { | |
126 | { DRM_PLANE_TYPE_OVERLAY, "Overlay" }, | |
127 | { DRM_PLANE_TYPE_PRIMARY, "Primary" }, | |
128 | { DRM_PLANE_TYPE_CURSOR, "Cursor" }, | |
129 | }; | |
130 | ||
f453ba04 DA |
131 | /* |
132 | * Optional properties | |
133 | */ | |
d20d3174 | 134 | static const struct drm_prop_enum_list drm_scaling_mode_enum_list[] = |
f453ba04 | 135 | { |
53bd8389 JB |
136 | { DRM_MODE_SCALE_NONE, "None" }, |
137 | { DRM_MODE_SCALE_FULLSCREEN, "Full" }, | |
138 | { DRM_MODE_SCALE_CENTER, "Center" }, | |
139 | { DRM_MODE_SCALE_ASPECT, "Full aspect" }, | |
f453ba04 DA |
140 | }; |
141 | ||
f453ba04 DA |
142 | /* |
143 | * Non-global properties, but "required" for certain connectors. | |
144 | */ | |
d20d3174 | 145 | static const struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = |
f453ba04 DA |
146 | { |
147 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ | |
148 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
149 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
150 | }; | |
151 | ||
152 | DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list) | |
153 | ||
d20d3174 | 154 | static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = |
f453ba04 DA |
155 | { |
156 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ | |
157 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
158 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
159 | }; | |
160 | ||
161 | DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name, | |
162 | drm_dvi_i_subconnector_enum_list) | |
163 | ||
d20d3174 | 164 | static const struct drm_prop_enum_list drm_tv_select_enum_list[] = |
f453ba04 DA |
165 | { |
166 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ | |
167 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
168 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
169 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 170 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
171 | }; |
172 | ||
173 | DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list) | |
174 | ||
d20d3174 | 175 | static const struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = |
f453ba04 DA |
176 | { |
177 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ | |
178 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
179 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
180 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 181 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
182 | }; |
183 | ||
184 | DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, | |
185 | drm_tv_subconnector_enum_list) | |
186 | ||
d20d3174 | 187 | static const struct drm_prop_enum_list drm_dirty_info_enum_list[] = { |
884840aa JB |
188 | { DRM_MODE_DIRTY_OFF, "Off" }, |
189 | { DRM_MODE_DIRTY_ON, "On" }, | |
190 | { DRM_MODE_DIRTY_ANNOTATE, "Annotate" }, | |
191 | }; | |
192 | ||
f453ba04 DA |
193 | struct drm_conn_prop_enum_list { |
194 | int type; | |
d20d3174 | 195 | const char *name; |
b21e3afe | 196 | struct ida ida; |
f453ba04 DA |
197 | }; |
198 | ||
199 | /* | |
200 | * Connector and encoder types. | |
201 | */ | |
202 | static struct drm_conn_prop_enum_list drm_connector_enum_list[] = | |
b21e3afe IM |
203 | { { DRM_MODE_CONNECTOR_Unknown, "Unknown" }, |
204 | { DRM_MODE_CONNECTOR_VGA, "VGA" }, | |
205 | { DRM_MODE_CONNECTOR_DVII, "DVI-I" }, | |
206 | { DRM_MODE_CONNECTOR_DVID, "DVI-D" }, | |
207 | { DRM_MODE_CONNECTOR_DVIA, "DVI-A" }, | |
208 | { DRM_MODE_CONNECTOR_Composite, "Composite" }, | |
209 | { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO" }, | |
210 | { DRM_MODE_CONNECTOR_LVDS, "LVDS" }, | |
211 | { DRM_MODE_CONNECTOR_Component, "Component" }, | |
212 | { DRM_MODE_CONNECTOR_9PinDIN, "DIN" }, | |
213 | { DRM_MODE_CONNECTOR_DisplayPort, "DP" }, | |
214 | { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" }, | |
215 | { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" }, | |
216 | { DRM_MODE_CONNECTOR_TV, "TV" }, | |
217 | { DRM_MODE_CONNECTOR_eDP, "eDP" }, | |
218 | { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual" }, | |
b8923273 | 219 | { DRM_MODE_CONNECTOR_DSI, "DSI" }, |
f453ba04 DA |
220 | }; |
221 | ||
d20d3174 | 222 | static const struct drm_prop_enum_list drm_encoder_enum_list[] = |
f453ba04 DA |
223 | { { DRM_MODE_ENCODER_NONE, "None" }, |
224 | { DRM_MODE_ENCODER_DAC, "DAC" }, | |
225 | { DRM_MODE_ENCODER_TMDS, "TMDS" }, | |
226 | { DRM_MODE_ENCODER_LVDS, "LVDS" }, | |
227 | { DRM_MODE_ENCODER_TVDAC, "TV" }, | |
a7331e5c | 228 | { DRM_MODE_ENCODER_VIRTUAL, "Virtual" }, |
b8923273 | 229 | { DRM_MODE_ENCODER_DSI, "DSI" }, |
182407a6 | 230 | { DRM_MODE_ENCODER_DPMST, "DP MST" }, |
f453ba04 DA |
231 | }; |
232 | ||
ac1bb36c JB |
233 | static const struct drm_prop_enum_list drm_subpixel_enum_list[] = |
234 | { | |
235 | { SubPixelUnknown, "Unknown" }, | |
236 | { SubPixelHorizontalRGB, "Horizontal RGB" }, | |
237 | { SubPixelHorizontalBGR, "Horizontal BGR" }, | |
238 | { SubPixelVerticalRGB, "Vertical RGB" }, | |
239 | { SubPixelVerticalBGR, "Vertical BGR" }, | |
240 | { SubPixelNone, "None" }, | |
241 | }; | |
242 | ||
b21e3afe IM |
243 | void drm_connector_ida_init(void) |
244 | { | |
245 | int i; | |
246 | ||
247 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) | |
248 | ida_init(&drm_connector_enum_list[i].ida); | |
249 | } | |
250 | ||
251 | void drm_connector_ida_destroy(void) | |
252 | { | |
253 | int i; | |
254 | ||
255 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) | |
256 | ida_destroy(&drm_connector_enum_list[i].ida); | |
257 | } | |
258 | ||
c8e32cc1 DV |
259 | /** |
260 | * drm_get_encoder_name - return a string for encoder | |
e5748946 | 261 | * @encoder: the encoder to get name for |
c8e32cc1 | 262 | */ |
d20d3174 | 263 | const char *drm_get_encoder_name(const struct drm_encoder *encoder) |
f453ba04 | 264 | { |
e5748946 | 265 | return encoder->name; |
f453ba04 | 266 | } |
13a8195b | 267 | EXPORT_SYMBOL(drm_get_encoder_name); |
f453ba04 | 268 | |
c8e32cc1 DV |
269 | /** |
270 | * drm_get_connector_name - return a string for connector | |
2abdd313 | 271 | * @connector: the connector to get name for |
c8e32cc1 | 272 | */ |
d20d3174 | 273 | const char *drm_get_connector_name(const struct drm_connector *connector) |
f453ba04 | 274 | { |
2abdd313 | 275 | return connector->name; |
f453ba04 DA |
276 | } |
277 | EXPORT_SYMBOL(drm_get_connector_name); | |
278 | ||
c8e32cc1 DV |
279 | /** |
280 | * drm_get_connector_status_name - return a string for connector status | |
281 | * @status: connector status to compute name of | |
282 | * | |
283 | * In contrast to the other drm_get_*_name functions this one here returns a | |
284 | * const pointer and hence is threadsafe. | |
285 | */ | |
d20d3174 | 286 | const char *drm_get_connector_status_name(enum drm_connector_status status) |
f453ba04 DA |
287 | { |
288 | if (status == connector_status_connected) | |
289 | return "connected"; | |
290 | else if (status == connector_status_disconnected) | |
291 | return "disconnected"; | |
292 | else | |
293 | return "unknown"; | |
294 | } | |
ed7951dc | 295 | EXPORT_SYMBOL(drm_get_connector_status_name); |
f453ba04 | 296 | |
ac1bb36c JB |
297 | /** |
298 | * drm_get_subpixel_order_name - return a string for a given subpixel enum | |
299 | * @order: enum of subpixel_order | |
300 | * | |
301 | * Note you could abuse this and return something out of bounds, but that | |
302 | * would be a caller error. No unscrubbed user data should make it here. | |
303 | */ | |
304 | const char *drm_get_subpixel_order_name(enum subpixel_order order) | |
305 | { | |
306 | return drm_subpixel_enum_list[order].name; | |
307 | } | |
308 | EXPORT_SYMBOL(drm_get_subpixel_order_name); | |
309 | ||
6ba6d03e VS |
310 | static char printable_char(int c) |
311 | { | |
312 | return isascii(c) && isprint(c) ? c : '?'; | |
313 | } | |
314 | ||
c8e32cc1 DV |
315 | /** |
316 | * drm_get_format_name - return a string for drm fourcc format | |
317 | * @format: format to compute name of | |
318 | * | |
319 | * Note that the buffer used by this function is globally shared and owned by | |
320 | * the function itself. | |
321 | * | |
322 | * FIXME: This isn't really multithreading safe. | |
323 | */ | |
d20d3174 | 324 | const char *drm_get_format_name(uint32_t format) |
6ba6d03e VS |
325 | { |
326 | static char buf[32]; | |
327 | ||
328 | snprintf(buf, sizeof(buf), | |
329 | "%c%c%c%c %s-endian (0x%08x)", | |
330 | printable_char(format & 0xff), | |
331 | printable_char((format >> 8) & 0xff), | |
332 | printable_char((format >> 16) & 0xff), | |
333 | printable_char((format >> 24) & 0x7f), | |
334 | format & DRM_FORMAT_BIG_ENDIAN ? "big" : "little", | |
335 | format); | |
336 | ||
337 | return buf; | |
338 | } | |
339 | EXPORT_SYMBOL(drm_get_format_name); | |
340 | ||
f453ba04 | 341 | /** |
065a50ed | 342 | * drm_mode_object_get - allocate a new modeset identifier |
f453ba04 | 343 | * @dev: DRM device |
065a50ed DV |
344 | * @obj: object pointer, used to generate unique ID |
345 | * @obj_type: object type | |
f453ba04 | 346 | * |
f453ba04 | 347 | * Create a unique identifier based on @ptr in @dev's identifier space. Used |
c8e32cc1 DV |
348 | * for tracking modes, CRTCs and connectors. Note that despite the _get postfix |
349 | * modeset identifiers are _not_ reference counted. Hence don't use this for | |
350 | * reference counted modeset objects like framebuffers. | |
f453ba04 | 351 | * |
c8e32cc1 | 352 | * Returns: |
f453ba04 DA |
353 | * New unique (relative to other objects in @dev) integer identifier for the |
354 | * object. | |
355 | */ | |
8bd441b2 DV |
356 | int drm_mode_object_get(struct drm_device *dev, |
357 | struct drm_mode_object *obj, uint32_t obj_type) | |
f453ba04 | 358 | { |
f453ba04 DA |
359 | int ret; |
360 | ||
ad2563c2 | 361 | mutex_lock(&dev->mode_config.idr_mutex); |
2e928815 TH |
362 | ret = idr_alloc(&dev->mode_config.crtc_idr, obj, 1, 0, GFP_KERNEL); |
363 | if (ret >= 0) { | |
4b096ac1 DV |
364 | /* |
365 | * Set up the object linking under the protection of the idr | |
366 | * lock so that other users can't see inconsistent state. | |
367 | */ | |
2e928815 | 368 | obj->id = ret; |
4b096ac1 DV |
369 | obj->type = obj_type; |
370 | } | |
ad2563c2 | 371 | mutex_unlock(&dev->mode_config.idr_mutex); |
4b096ac1 | 372 | |
2e928815 | 373 | return ret < 0 ? ret : 0; |
f453ba04 DA |
374 | } |
375 | ||
376 | /** | |
065a50ed | 377 | * drm_mode_object_put - free a modeset identifer |
f453ba04 | 378 | * @dev: DRM device |
065a50ed | 379 | * @object: object to free |
f453ba04 | 380 | * |
c8e32cc1 DV |
381 | * Free @id from @dev's unique identifier pool. Note that despite the _get |
382 | * postfix modeset identifiers are _not_ reference counted. Hence don't use this | |
383 | * for reference counted modeset objects like framebuffers. | |
f453ba04 | 384 | */ |
8bd441b2 DV |
385 | void drm_mode_object_put(struct drm_device *dev, |
386 | struct drm_mode_object *object) | |
f453ba04 | 387 | { |
ad2563c2 | 388 | mutex_lock(&dev->mode_config.idr_mutex); |
f453ba04 | 389 | idr_remove(&dev->mode_config.crtc_idr, object->id); |
ad2563c2 | 390 | mutex_unlock(&dev->mode_config.idr_mutex); |
f453ba04 DA |
391 | } |
392 | ||
786b99ed DV |
393 | /** |
394 | * drm_mode_object_find - look up a drm object with static lifetime | |
395 | * @dev: drm device | |
396 | * @id: id of the mode object | |
397 | * @type: type of the mode object | |
398 | * | |
399 | * Note that framebuffers cannot be looked up with this functions - since those | |
400 | * are reference counted, they need special treatment. | |
401 | */ | |
7a9c9060 DV |
402 | struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, |
403 | uint32_t id, uint32_t type) | |
f453ba04 | 404 | { |
ad2563c2 | 405 | struct drm_mode_object *obj = NULL; |
f453ba04 | 406 | |
786b99ed DV |
407 | /* Framebuffers are reference counted and need their own lookup |
408 | * function.*/ | |
409 | WARN_ON(type == DRM_MODE_OBJECT_FB); | |
410 | ||
ad2563c2 | 411 | mutex_lock(&dev->mode_config.idr_mutex); |
f453ba04 DA |
412 | obj = idr_find(&dev->mode_config.crtc_idr, id); |
413 | if (!obj || (obj->type != type) || (obj->id != id)) | |
ad2563c2 JB |
414 | obj = NULL; |
415 | mutex_unlock(&dev->mode_config.idr_mutex); | |
f453ba04 DA |
416 | |
417 | return obj; | |
418 | } | |
419 | EXPORT_SYMBOL(drm_mode_object_find); | |
420 | ||
f453ba04 DA |
421 | /** |
422 | * drm_framebuffer_init - initialize a framebuffer | |
423 | * @dev: DRM device | |
065a50ed DV |
424 | * @fb: framebuffer to be initialized |
425 | * @funcs: ... with these functions | |
f453ba04 | 426 | * |
f453ba04 DA |
427 | * Allocates an ID for the framebuffer's parent mode object, sets its mode |
428 | * functions & device file and adds it to the master fd list. | |
429 | * | |
4b096ac1 DV |
430 | * IMPORTANT: |
431 | * This functions publishes the fb and makes it available for concurrent access | |
432 | * by other users. Which means by this point the fb _must_ be fully set up - | |
433 | * since all the fb attributes are invariant over its lifetime, no further | |
434 | * locking but only correct reference counting is required. | |
435 | * | |
c8e32cc1 | 436 | * Returns: |
af901ca1 | 437 | * Zero on success, error code on failure. |
f453ba04 DA |
438 | */ |
439 | int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, | |
440 | const struct drm_framebuffer_funcs *funcs) | |
441 | { | |
442 | int ret; | |
443 | ||
4b096ac1 | 444 | mutex_lock(&dev->mode_config.fb_lock); |
f7eff60e | 445 | kref_init(&fb->refcount); |
4b096ac1 DV |
446 | INIT_LIST_HEAD(&fb->filp_head); |
447 | fb->dev = dev; | |
448 | fb->funcs = funcs; | |
f7eff60e | 449 | |
f453ba04 | 450 | ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB); |
6bfc56aa | 451 | if (ret) |
4b096ac1 | 452 | goto out; |
f453ba04 | 453 | |
2b677e8c DV |
454 | /* Grab the idr reference. */ |
455 | drm_framebuffer_reference(fb); | |
456 | ||
f453ba04 DA |
457 | dev->mode_config.num_fb++; |
458 | list_add(&fb->head, &dev->mode_config.fb_list); | |
4b096ac1 DV |
459 | out: |
460 | mutex_unlock(&dev->mode_config.fb_lock); | |
f453ba04 DA |
461 | |
462 | return 0; | |
463 | } | |
464 | EXPORT_SYMBOL(drm_framebuffer_init); | |
465 | ||
f7eff60e RC |
466 | static void drm_framebuffer_free(struct kref *kref) |
467 | { | |
468 | struct drm_framebuffer *fb = | |
469 | container_of(kref, struct drm_framebuffer, refcount); | |
470 | fb->funcs->destroy(fb); | |
471 | } | |
472 | ||
2b677e8c DV |
473 | static struct drm_framebuffer *__drm_framebuffer_lookup(struct drm_device *dev, |
474 | uint32_t id) | |
475 | { | |
476 | struct drm_mode_object *obj = NULL; | |
477 | struct drm_framebuffer *fb; | |
478 | ||
479 | mutex_lock(&dev->mode_config.idr_mutex); | |
480 | obj = idr_find(&dev->mode_config.crtc_idr, id); | |
481 | if (!obj || (obj->type != DRM_MODE_OBJECT_FB) || (obj->id != id)) | |
482 | fb = NULL; | |
483 | else | |
484 | fb = obj_to_fb(obj); | |
485 | mutex_unlock(&dev->mode_config.idr_mutex); | |
486 | ||
487 | return fb; | |
488 | } | |
489 | ||
786b99ed DV |
490 | /** |
491 | * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference | |
492 | * @dev: drm device | |
493 | * @id: id of the fb object | |
494 | * | |
495 | * If successful, this grabs an additional reference to the framebuffer - | |
496 | * callers need to make sure to eventually unreference the returned framebuffer | |
c8e32cc1 | 497 | * again, using @drm_framebuffer_unreference. |
786b99ed DV |
498 | */ |
499 | struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev, | |
500 | uint32_t id) | |
501 | { | |
786b99ed DV |
502 | struct drm_framebuffer *fb; |
503 | ||
504 | mutex_lock(&dev->mode_config.fb_lock); | |
2b677e8c | 505 | fb = __drm_framebuffer_lookup(dev, id); |
786b99ed | 506 | if (fb) |
9131d3d8 | 507 | drm_framebuffer_reference(fb); |
786b99ed DV |
508 | mutex_unlock(&dev->mode_config.fb_lock); |
509 | ||
510 | return fb; | |
511 | } | |
512 | EXPORT_SYMBOL(drm_framebuffer_lookup); | |
513 | ||
f7eff60e RC |
514 | /** |
515 | * drm_framebuffer_unreference - unref a framebuffer | |
065a50ed DV |
516 | * @fb: framebuffer to unref |
517 | * | |
518 | * This functions decrements the fb's refcount and frees it if it drops to zero. | |
f7eff60e RC |
519 | */ |
520 | void drm_framebuffer_unreference(struct drm_framebuffer *fb) | |
521 | { | |
f7eff60e | 522 | DRM_DEBUG("FB ID: %d\n", fb->base.id); |
f7eff60e RC |
523 | kref_put(&fb->refcount, drm_framebuffer_free); |
524 | } | |
525 | EXPORT_SYMBOL(drm_framebuffer_unreference); | |
526 | ||
527 | /** | |
528 | * drm_framebuffer_reference - incr the fb refcnt | |
065a50ed | 529 | * @fb: framebuffer |
c8e32cc1 DV |
530 | * |
531 | * This functions increments the fb's refcount. | |
f7eff60e RC |
532 | */ |
533 | void drm_framebuffer_reference(struct drm_framebuffer *fb) | |
534 | { | |
535 | DRM_DEBUG("FB ID: %d\n", fb->base.id); | |
536 | kref_get(&fb->refcount); | |
537 | } | |
538 | EXPORT_SYMBOL(drm_framebuffer_reference); | |
539 | ||
2b677e8c DV |
540 | static void drm_framebuffer_free_bug(struct kref *kref) |
541 | { | |
542 | BUG(); | |
543 | } | |
544 | ||
6c2a7532 DV |
545 | static void __drm_framebuffer_unreference(struct drm_framebuffer *fb) |
546 | { | |
547 | DRM_DEBUG("FB ID: %d\n", fb->base.id); | |
548 | kref_put(&fb->refcount, drm_framebuffer_free_bug); | |
549 | } | |
550 | ||
2b677e8c DV |
551 | /* dev->mode_config.fb_lock must be held! */ |
552 | static void __drm_framebuffer_unregister(struct drm_device *dev, | |
553 | struct drm_framebuffer *fb) | |
554 | { | |
555 | mutex_lock(&dev->mode_config.idr_mutex); | |
556 | idr_remove(&dev->mode_config.crtc_idr, fb->base.id); | |
557 | mutex_unlock(&dev->mode_config.idr_mutex); | |
558 | ||
559 | fb->base.id = 0; | |
560 | ||
6c2a7532 | 561 | __drm_framebuffer_unreference(fb); |
2b677e8c DV |
562 | } |
563 | ||
36206361 DV |
564 | /** |
565 | * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr | |
566 | * @fb: fb to unregister | |
567 | * | |
568 | * Drivers need to call this when cleaning up driver-private framebuffers, e.g. | |
569 | * those used for fbdev. Note that the caller must hold a reference of it's own, | |
570 | * i.e. the object may not be destroyed through this call (since it'll lead to a | |
571 | * locking inversion). | |
572 | */ | |
573 | void drm_framebuffer_unregister_private(struct drm_framebuffer *fb) | |
574 | { | |
2b677e8c DV |
575 | struct drm_device *dev = fb->dev; |
576 | ||
577 | mutex_lock(&dev->mode_config.fb_lock); | |
578 | /* Mark fb as reaped and drop idr ref. */ | |
579 | __drm_framebuffer_unregister(dev, fb); | |
580 | mutex_unlock(&dev->mode_config.fb_lock); | |
36206361 DV |
581 | } |
582 | EXPORT_SYMBOL(drm_framebuffer_unregister_private); | |
583 | ||
f453ba04 DA |
584 | /** |
585 | * drm_framebuffer_cleanup - remove a framebuffer object | |
586 | * @fb: framebuffer to remove | |
587 | * | |
c8e32cc1 DV |
588 | * Cleanup framebuffer. This function is intended to be used from the drivers |
589 | * ->destroy callback. It can also be used to clean up driver private | |
590 | * framebuffers embedded into a larger structure. | |
36206361 DV |
591 | * |
592 | * Note that this function does not remove the fb from active usuage - if it is | |
593 | * still used anywhere, hilarity can ensue since userspace could call getfb on | |
594 | * the id and get back -EINVAL. Obviously no concern at driver unload time. | |
595 | * | |
596 | * Also, the framebuffer will not be removed from the lookup idr - for | |
597 | * user-created framebuffers this will happen in in the rmfb ioctl. For | |
598 | * driver-private objects (e.g. for fbdev) drivers need to explicitly call | |
599 | * drm_framebuffer_unregister_private. | |
f453ba04 DA |
600 | */ |
601 | void drm_framebuffer_cleanup(struct drm_framebuffer *fb) | |
f7eff60e RC |
602 | { |
603 | struct drm_device *dev = fb->dev; | |
8faf6b18 | 604 | |
4b096ac1 | 605 | mutex_lock(&dev->mode_config.fb_lock); |
f7eff60e RC |
606 | list_del(&fb->head); |
607 | dev->mode_config.num_fb--; | |
4b096ac1 | 608 | mutex_unlock(&dev->mode_config.fb_lock); |
f7eff60e RC |
609 | } |
610 | EXPORT_SYMBOL(drm_framebuffer_cleanup); | |
611 | ||
612 | /** | |
613 | * drm_framebuffer_remove - remove and unreference a framebuffer object | |
614 | * @fb: framebuffer to remove | |
615 | * | |
f7eff60e | 616 | * Scans all the CRTCs and planes in @dev's mode_config. If they're |
36206361 | 617 | * using @fb, removes it, setting it to NULL. Then drops the reference to the |
b62584e3 DV |
618 | * passed-in framebuffer. Might take the modeset locks. |
619 | * | |
620 | * Note that this function optimizes the cleanup away if the caller holds the | |
621 | * last reference to the framebuffer. It is also guaranteed to not take the | |
622 | * modeset locks in this case. | |
f7eff60e RC |
623 | */ |
624 | void drm_framebuffer_remove(struct drm_framebuffer *fb) | |
f453ba04 DA |
625 | { |
626 | struct drm_device *dev = fb->dev; | |
627 | struct drm_crtc *crtc; | |
8cf5c917 | 628 | struct drm_plane *plane; |
5ef5f72f DA |
629 | struct drm_mode_set set; |
630 | int ret; | |
f453ba04 | 631 | |
4b096ac1 | 632 | WARN_ON(!list_empty(&fb->filp_head)); |
8faf6b18 | 633 | |
b62584e3 DV |
634 | /* |
635 | * drm ABI mandates that we remove any deleted framebuffers from active | |
636 | * useage. But since most sane clients only remove framebuffers they no | |
637 | * longer need, try to optimize this away. | |
638 | * | |
639 | * Since we're holding a reference ourselves, observing a refcount of 1 | |
640 | * means that we're the last holder and can skip it. Also, the refcount | |
641 | * can never increase from 1 again, so we don't need any barriers or | |
642 | * locks. | |
643 | * | |
644 | * Note that userspace could try to race with use and instate a new | |
645 | * usage _after_ we've cleared all current ones. End result will be an | |
646 | * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot | |
647 | * in this manner. | |
648 | */ | |
649 | if (atomic_read(&fb->refcount.refcount) > 1) { | |
650 | drm_modeset_lock_all(dev); | |
651 | /* remove from any CRTC */ | |
652 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
f4510a27 | 653 | if (crtc->primary->fb == fb) { |
b62584e3 DV |
654 | /* should turn off the crtc */ |
655 | memset(&set, 0, sizeof(struct drm_mode_set)); | |
656 | set.crtc = crtc; | |
657 | set.fb = NULL; | |
658 | ret = drm_mode_set_config_internal(&set); | |
659 | if (ret) | |
660 | DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc); | |
661 | } | |
5ef5f72f | 662 | } |
f453ba04 | 663 | |
b62584e3 | 664 | list_for_each_entry(plane, &dev->mode_config.plane_list, head) { |
9125e618 VS |
665 | if (plane->fb == fb) |
666 | drm_plane_force_disable(plane); | |
8cf5c917 | 667 | } |
b62584e3 | 668 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
669 | } |
670 | ||
f7eff60e | 671 | drm_framebuffer_unreference(fb); |
f453ba04 | 672 | } |
f7eff60e | 673 | EXPORT_SYMBOL(drm_framebuffer_remove); |
f453ba04 DA |
674 | |
675 | /** | |
e13161af MR |
676 | * drm_crtc_init_with_planes - Initialise a new CRTC object with |
677 | * specified primary and cursor planes. | |
f453ba04 DA |
678 | * @dev: DRM device |
679 | * @crtc: CRTC object to init | |
e13161af MR |
680 | * @primary: Primary plane for CRTC |
681 | * @cursor: Cursor plane for CRTC | |
f453ba04 DA |
682 | * @funcs: callbacks for the new CRTC |
683 | * | |
ad6f5c34 | 684 | * Inits a new object created as base part of a driver crtc object. |
6bfc56aa | 685 | * |
c8e32cc1 | 686 | * Returns: |
6bfc56aa | 687 | * Zero on success, error code on failure. |
f453ba04 | 688 | */ |
e13161af MR |
689 | int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, |
690 | struct drm_plane *primary, | |
691 | void *cursor, | |
692 | const struct drm_crtc_funcs *funcs) | |
f453ba04 | 693 | { |
6bfc56aa VS |
694 | int ret; |
695 | ||
f453ba04 DA |
696 | crtc->dev = dev; |
697 | crtc->funcs = funcs; | |
7c80e128 | 698 | crtc->invert_dimensions = false; |
f453ba04 | 699 | |
84849903 | 700 | drm_modeset_lock_all(dev); |
29494c17 DV |
701 | mutex_init(&crtc->mutex); |
702 | mutex_lock_nest_lock(&crtc->mutex, &dev->mode_config.mutex); | |
6bfc56aa VS |
703 | |
704 | ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); | |
705 | if (ret) | |
706 | goto out; | |
f453ba04 | 707 | |
bffd9de0 PZ |
708 | crtc->base.properties = &crtc->properties; |
709 | ||
f453ba04 DA |
710 | list_add_tail(&crtc->head, &dev->mode_config.crtc_list); |
711 | dev->mode_config.num_crtc++; | |
6bfc56aa | 712 | |
e13161af MR |
713 | crtc->primary = primary; |
714 | if (primary) | |
715 | primary->possible_crtcs = 1 << drm_crtc_index(crtc); | |
716 | ||
6bfc56aa | 717 | out: |
84849903 | 718 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
719 | |
720 | return ret; | |
f453ba04 | 721 | } |
e13161af | 722 | EXPORT_SYMBOL(drm_crtc_init_with_planes); |
f453ba04 DA |
723 | |
724 | /** | |
ad6f5c34 | 725 | * drm_crtc_cleanup - Clean up the core crtc usage |
f453ba04 DA |
726 | * @crtc: CRTC to cleanup |
727 | * | |
ad6f5c34 VS |
728 | * This function cleans up @crtc and removes it from the DRM mode setting |
729 | * core. Note that the function does *not* free the crtc structure itself, | |
730 | * this is the responsibility of the caller. | |
f453ba04 DA |
731 | */ |
732 | void drm_crtc_cleanup(struct drm_crtc *crtc) | |
733 | { | |
734 | struct drm_device *dev = crtc->dev; | |
735 | ||
9e1c156f SK |
736 | kfree(crtc->gamma_store); |
737 | crtc->gamma_store = NULL; | |
f453ba04 DA |
738 | |
739 | drm_mode_object_put(dev, &crtc->base); | |
740 | list_del(&crtc->head); | |
741 | dev->mode_config.num_crtc--; | |
742 | } | |
743 | EXPORT_SYMBOL(drm_crtc_cleanup); | |
744 | ||
db5f7a6e RK |
745 | /** |
746 | * drm_crtc_index - find the index of a registered CRTC | |
747 | * @crtc: CRTC to find index for | |
748 | * | |
749 | * Given a registered CRTC, return the index of that CRTC within a DRM | |
750 | * device's list of CRTCs. | |
751 | */ | |
752 | unsigned int drm_crtc_index(struct drm_crtc *crtc) | |
753 | { | |
754 | unsigned int index = 0; | |
755 | struct drm_crtc *tmp; | |
756 | ||
757 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) { | |
758 | if (tmp == crtc) | |
759 | return index; | |
760 | ||
761 | index++; | |
762 | } | |
763 | ||
764 | BUG(); | |
765 | } | |
766 | EXPORT_SYMBOL(drm_crtc_index); | |
767 | ||
86f422d5 | 768 | /* |
f453ba04 DA |
769 | * drm_mode_remove - remove and free a mode |
770 | * @connector: connector list to modify | |
771 | * @mode: mode to remove | |
772 | * | |
f453ba04 DA |
773 | * Remove @mode from @connector's mode list, then free it. |
774 | */ | |
86f422d5 LD |
775 | static void drm_mode_remove(struct drm_connector *connector, |
776 | struct drm_display_mode *mode) | |
f453ba04 DA |
777 | { |
778 | list_del(&mode->head); | |
554f1d78 | 779 | drm_mode_destroy(connector->dev, mode); |
f453ba04 | 780 | } |
f453ba04 DA |
781 | |
782 | /** | |
783 | * drm_connector_init - Init a preallocated connector | |
784 | * @dev: DRM device | |
785 | * @connector: the connector to init | |
786 | * @funcs: callbacks for this connector | |
065a50ed | 787 | * @connector_type: user visible type of the connector |
f453ba04 | 788 | * |
f453ba04 DA |
789 | * Initialises a preallocated connector. Connectors should be |
790 | * subclassed as part of driver connector objects. | |
6bfc56aa | 791 | * |
c8e32cc1 | 792 | * Returns: |
6bfc56aa | 793 | * Zero on success, error code on failure. |
f453ba04 | 794 | */ |
6bfc56aa VS |
795 | int drm_connector_init(struct drm_device *dev, |
796 | struct drm_connector *connector, | |
797 | const struct drm_connector_funcs *funcs, | |
798 | int connector_type) | |
f453ba04 | 799 | { |
6bfc56aa | 800 | int ret; |
b21e3afe IM |
801 | struct ida *connector_ida = |
802 | &drm_connector_enum_list[connector_type].ida; | |
6bfc56aa | 803 | |
84849903 | 804 | drm_modeset_lock_all(dev); |
f453ba04 | 805 | |
6bfc56aa VS |
806 | ret = drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR); |
807 | if (ret) | |
2abdd313 | 808 | goto out_unlock; |
6bfc56aa | 809 | |
7e3bdf4a | 810 | connector->base.properties = &connector->properties; |
f453ba04 DA |
811 | connector->dev = dev; |
812 | connector->funcs = funcs; | |
f453ba04 DA |
813 | connector->connector_type = connector_type; |
814 | connector->connector_type_id = | |
b21e3afe IM |
815 | ida_simple_get(connector_ida, 1, 0, GFP_KERNEL); |
816 | if (connector->connector_type_id < 0) { | |
817 | ret = connector->connector_type_id; | |
2abdd313 | 818 | goto out_put; |
b21e3afe | 819 | } |
2abdd313 JN |
820 | connector->name = |
821 | kasprintf(GFP_KERNEL, "%s-%d", | |
822 | drm_connector_enum_list[connector_type].name, | |
823 | connector->connector_type_id); | |
824 | if (!connector->name) { | |
825 | ret = -ENOMEM; | |
826 | goto out_put; | |
827 | } | |
828 | ||
f453ba04 DA |
829 | INIT_LIST_HEAD(&connector->probed_modes); |
830 | INIT_LIST_HEAD(&connector->modes); | |
831 | connector->edid_blob_ptr = NULL; | |
5e2cb2f6 | 832 | connector->status = connector_status_unknown; |
f453ba04 DA |
833 | |
834 | list_add_tail(&connector->head, &dev->mode_config.connector_list); | |
835 | dev->mode_config.num_connector++; | |
836 | ||
a7331e5c | 837 | if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL) |
58495563 | 838 | drm_object_attach_property(&connector->base, |
a7331e5c TH |
839 | dev->mode_config.edid_property, |
840 | 0); | |
f453ba04 | 841 | |
58495563 | 842 | drm_object_attach_property(&connector->base, |
f453ba04 DA |
843 | dev->mode_config.dpms_property, 0); |
844 | ||
2abdd313 JN |
845 | out_put: |
846 | if (ret) | |
847 | drm_mode_object_put(dev, &connector->base); | |
848 | ||
849 | out_unlock: | |
84849903 | 850 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
851 | |
852 | return ret; | |
f453ba04 DA |
853 | } |
854 | EXPORT_SYMBOL(drm_connector_init); | |
855 | ||
856 | /** | |
857 | * drm_connector_cleanup - cleans up an initialised connector | |
858 | * @connector: connector to cleanup | |
859 | * | |
f453ba04 DA |
860 | * Cleans up the connector but doesn't free the object. |
861 | */ | |
862 | void drm_connector_cleanup(struct drm_connector *connector) | |
863 | { | |
864 | struct drm_device *dev = connector->dev; | |
865 | struct drm_display_mode *mode, *t; | |
866 | ||
867 | list_for_each_entry_safe(mode, t, &connector->probed_modes, head) | |
868 | drm_mode_remove(connector, mode); | |
869 | ||
870 | list_for_each_entry_safe(mode, t, &connector->modes, head) | |
871 | drm_mode_remove(connector, mode); | |
872 | ||
b21e3afe IM |
873 | ida_remove(&drm_connector_enum_list[connector->connector_type].ida, |
874 | connector->connector_type_id); | |
875 | ||
f453ba04 | 876 | drm_mode_object_put(dev, &connector->base); |
2abdd313 JN |
877 | kfree(connector->name); |
878 | connector->name = NULL; | |
f453ba04 | 879 | list_del(&connector->head); |
6380c509 | 880 | dev->mode_config.num_connector--; |
f453ba04 DA |
881 | } |
882 | EXPORT_SYMBOL(drm_connector_cleanup); | |
883 | ||
c8e32cc1 DV |
884 | /** |
885 | * drm_connector_unplug_all - unregister connector userspace interfaces | |
886 | * @dev: drm device | |
887 | * | |
888 | * This function unregisters all connector userspace interfaces in sysfs. Should | |
889 | * be call when the device is disconnected, e.g. from an usb driver's | |
890 | * ->disconnect callback. | |
891 | */ | |
cbc7e221 DA |
892 | void drm_connector_unplug_all(struct drm_device *dev) |
893 | { | |
894 | struct drm_connector *connector; | |
895 | ||
896 | /* taking the mode config mutex ends up in a clash with sysfs */ | |
897 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) | |
898 | drm_sysfs_connector_remove(connector); | |
899 | ||
900 | } | |
901 | EXPORT_SYMBOL(drm_connector_unplug_all); | |
902 | ||
c8e32cc1 DV |
903 | /** |
904 | * drm_bridge_init - initialize a drm transcoder/bridge | |
905 | * @dev: drm device | |
906 | * @bridge: transcoder/bridge to set up | |
907 | * @funcs: bridge function table | |
908 | * | |
909 | * Initialises a preallocated bridge. Bridges should be | |
910 | * subclassed as part of driver connector objects. | |
911 | * | |
912 | * Returns: | |
913 | * Zero on success, error code on failure. | |
914 | */ | |
3b336ec4 SP |
915 | int drm_bridge_init(struct drm_device *dev, struct drm_bridge *bridge, |
916 | const struct drm_bridge_funcs *funcs) | |
917 | { | |
918 | int ret; | |
919 | ||
920 | drm_modeset_lock_all(dev); | |
921 | ||
922 | ret = drm_mode_object_get(dev, &bridge->base, DRM_MODE_OBJECT_BRIDGE); | |
923 | if (ret) | |
924 | goto out; | |
925 | ||
926 | bridge->dev = dev; | |
927 | bridge->funcs = funcs; | |
928 | ||
929 | list_add_tail(&bridge->head, &dev->mode_config.bridge_list); | |
930 | dev->mode_config.num_bridge++; | |
931 | ||
932 | out: | |
933 | drm_modeset_unlock_all(dev); | |
934 | return ret; | |
935 | } | |
936 | EXPORT_SYMBOL(drm_bridge_init); | |
937 | ||
c8e32cc1 DV |
938 | /** |
939 | * drm_bridge_cleanup - cleans up an initialised bridge | |
940 | * @bridge: bridge to cleanup | |
941 | * | |
942 | * Cleans up the bridge but doesn't free the object. | |
943 | */ | |
3b336ec4 SP |
944 | void drm_bridge_cleanup(struct drm_bridge *bridge) |
945 | { | |
946 | struct drm_device *dev = bridge->dev; | |
947 | ||
948 | drm_modeset_lock_all(dev); | |
949 | drm_mode_object_put(dev, &bridge->base); | |
950 | list_del(&bridge->head); | |
951 | dev->mode_config.num_bridge--; | |
952 | drm_modeset_unlock_all(dev); | |
953 | } | |
954 | EXPORT_SYMBOL(drm_bridge_cleanup); | |
955 | ||
c8e32cc1 DV |
956 | /** |
957 | * drm_encoder_init - Init a preallocated encoder | |
958 | * @dev: drm device | |
959 | * @encoder: the encoder to init | |
960 | * @funcs: callbacks for this encoder | |
961 | * @encoder_type: user visible type of the encoder | |
962 | * | |
963 | * Initialises a preallocated encoder. Encoder should be | |
964 | * subclassed as part of driver encoder objects. | |
965 | * | |
966 | * Returns: | |
967 | * Zero on success, error code on failure. | |
968 | */ | |
6bfc56aa | 969 | int drm_encoder_init(struct drm_device *dev, |
cbc7e221 DA |
970 | struct drm_encoder *encoder, |
971 | const struct drm_encoder_funcs *funcs, | |
972 | int encoder_type) | |
f453ba04 | 973 | { |
6bfc56aa VS |
974 | int ret; |
975 | ||
84849903 | 976 | drm_modeset_lock_all(dev); |
f453ba04 | 977 | |
6bfc56aa VS |
978 | ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); |
979 | if (ret) | |
e5748946 | 980 | goto out_unlock; |
f453ba04 | 981 | |
6bfc56aa | 982 | encoder->dev = dev; |
f453ba04 DA |
983 | encoder->encoder_type = encoder_type; |
984 | encoder->funcs = funcs; | |
e5748946 JN |
985 | encoder->name = kasprintf(GFP_KERNEL, "%s-%d", |
986 | drm_encoder_enum_list[encoder_type].name, | |
987 | encoder->base.id); | |
988 | if (!encoder->name) { | |
989 | ret = -ENOMEM; | |
990 | goto out_put; | |
991 | } | |
f453ba04 DA |
992 | |
993 | list_add_tail(&encoder->head, &dev->mode_config.encoder_list); | |
994 | dev->mode_config.num_encoder++; | |
995 | ||
e5748946 JN |
996 | out_put: |
997 | if (ret) | |
998 | drm_mode_object_put(dev, &encoder->base); | |
999 | ||
1000 | out_unlock: | |
84849903 | 1001 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
1002 | |
1003 | return ret; | |
f453ba04 DA |
1004 | } |
1005 | EXPORT_SYMBOL(drm_encoder_init); | |
1006 | ||
c8e32cc1 DV |
1007 | /** |
1008 | * drm_encoder_cleanup - cleans up an initialised encoder | |
1009 | * @encoder: encoder to cleanup | |
1010 | * | |
1011 | * Cleans up the encoder but doesn't free the object. | |
1012 | */ | |
f453ba04 DA |
1013 | void drm_encoder_cleanup(struct drm_encoder *encoder) |
1014 | { | |
1015 | struct drm_device *dev = encoder->dev; | |
84849903 | 1016 | drm_modeset_lock_all(dev); |
f453ba04 | 1017 | drm_mode_object_put(dev, &encoder->base); |
e5748946 JN |
1018 | kfree(encoder->name); |
1019 | encoder->name = NULL; | |
f453ba04 | 1020 | list_del(&encoder->head); |
6380c509 | 1021 | dev->mode_config.num_encoder--; |
84849903 | 1022 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1023 | } |
1024 | EXPORT_SYMBOL(drm_encoder_cleanup); | |
1025 | ||
35f2c3ae | 1026 | /** |
dc415ff9 | 1027 | * drm_universal_plane_init - Initialize a new universal plane object |
35f2c3ae VS |
1028 | * @dev: DRM device |
1029 | * @plane: plane object to init | |
1030 | * @possible_crtcs: bitmask of possible CRTCs | |
1031 | * @funcs: callbacks for the new plane | |
1032 | * @formats: array of supported formats (%DRM_FORMAT_*) | |
1033 | * @format_count: number of elements in @formats | |
dc415ff9 | 1034 | * @type: type of plane (overlay, primary, cursor) |
35f2c3ae | 1035 | * |
dc415ff9 | 1036 | * Initializes a plane object of type @type. |
35f2c3ae | 1037 | * |
c8e32cc1 | 1038 | * Returns: |
35f2c3ae VS |
1039 | * Zero on success, error code on failure. |
1040 | */ | |
dc415ff9 MR |
1041 | int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane, |
1042 | unsigned long possible_crtcs, | |
1043 | const struct drm_plane_funcs *funcs, | |
1044 | const uint32_t *formats, uint32_t format_count, | |
1045 | enum drm_plane_type type) | |
8cf5c917 | 1046 | { |
6bfc56aa VS |
1047 | int ret; |
1048 | ||
84849903 | 1049 | drm_modeset_lock_all(dev); |
8cf5c917 | 1050 | |
6bfc56aa VS |
1051 | ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); |
1052 | if (ret) | |
1053 | goto out; | |
1054 | ||
4d93914a | 1055 | plane->base.properties = &plane->properties; |
8cf5c917 | 1056 | plane->dev = dev; |
8cf5c917 JB |
1057 | plane->funcs = funcs; |
1058 | plane->format_types = kmalloc(sizeof(uint32_t) * format_count, | |
1059 | GFP_KERNEL); | |
1060 | if (!plane->format_types) { | |
1061 | DRM_DEBUG_KMS("out of memory when allocating plane\n"); | |
1062 | drm_mode_object_put(dev, &plane->base); | |
6bfc56aa VS |
1063 | ret = -ENOMEM; |
1064 | goto out; | |
8cf5c917 JB |
1065 | } |
1066 | ||
308e5bcb | 1067 | memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); |
8cf5c917 JB |
1068 | plane->format_count = format_count; |
1069 | plane->possible_crtcs = possible_crtcs; | |
dc415ff9 | 1070 | plane->type = type; |
8cf5c917 | 1071 | |
dc415ff9 MR |
1072 | list_add_tail(&plane->head, &dev->mode_config.plane_list); |
1073 | dev->mode_config.num_total_plane++; | |
1074 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) | |
1075 | dev->mode_config.num_overlay_plane++; | |
8cf5c917 | 1076 | |
9922ab5a RC |
1077 | drm_object_attach_property(&plane->base, |
1078 | dev->mode_config.plane_type_property, | |
1079 | plane->type); | |
1080 | ||
6bfc56aa | 1081 | out: |
84849903 | 1082 | drm_modeset_unlock_all(dev); |
8cf5c917 | 1083 | |
6bfc56aa | 1084 | return ret; |
8cf5c917 | 1085 | } |
dc415ff9 MR |
1086 | EXPORT_SYMBOL(drm_universal_plane_init); |
1087 | ||
1088 | /** | |
1089 | * drm_plane_init - Initialize a legacy plane | |
1090 | * @dev: DRM device | |
1091 | * @plane: plane object to init | |
1092 | * @possible_crtcs: bitmask of possible CRTCs | |
1093 | * @funcs: callbacks for the new plane | |
1094 | * @formats: array of supported formats (%DRM_FORMAT_*) | |
1095 | * @format_count: number of elements in @formats | |
1096 | * @is_primary: plane type (primary vs overlay) | |
1097 | * | |
1098 | * Legacy API to initialize a DRM plane. | |
1099 | * | |
1100 | * New drivers should call drm_universal_plane_init() instead. | |
1101 | * | |
1102 | * Returns: | |
1103 | * Zero on success, error code on failure. | |
1104 | */ | |
1105 | int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, | |
1106 | unsigned long possible_crtcs, | |
1107 | const struct drm_plane_funcs *funcs, | |
1108 | const uint32_t *formats, uint32_t format_count, | |
1109 | bool is_primary) | |
1110 | { | |
1111 | enum drm_plane_type type; | |
1112 | ||
1113 | type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY; | |
1114 | return drm_universal_plane_init(dev, plane, possible_crtcs, funcs, | |
1115 | formats, format_count, type); | |
1116 | } | |
8cf5c917 JB |
1117 | EXPORT_SYMBOL(drm_plane_init); |
1118 | ||
35f2c3ae VS |
1119 | /** |
1120 | * drm_plane_cleanup - Clean up the core plane usage | |
1121 | * @plane: plane to cleanup | |
1122 | * | |
1123 | * This function cleans up @plane and removes it from the DRM mode setting | |
1124 | * core. Note that the function does *not* free the plane structure itself, | |
1125 | * this is the responsibility of the caller. | |
1126 | */ | |
8cf5c917 JB |
1127 | void drm_plane_cleanup(struct drm_plane *plane) |
1128 | { | |
1129 | struct drm_device *dev = plane->dev; | |
1130 | ||
84849903 | 1131 | drm_modeset_lock_all(dev); |
8cf5c917 JB |
1132 | kfree(plane->format_types); |
1133 | drm_mode_object_put(dev, &plane->base); | |
dc415ff9 MR |
1134 | |
1135 | BUG_ON(list_empty(&plane->head)); | |
1136 | ||
1137 | list_del(&plane->head); | |
1138 | dev->mode_config.num_total_plane--; | |
1139 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) | |
1140 | dev->mode_config.num_overlay_plane--; | |
84849903 | 1141 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
1142 | } |
1143 | EXPORT_SYMBOL(drm_plane_cleanup); | |
1144 | ||
35f2c3ae VS |
1145 | /** |
1146 | * drm_plane_force_disable - Forcibly disable a plane | |
1147 | * @plane: plane to disable | |
1148 | * | |
1149 | * Forces the plane to be disabled. | |
1150 | * | |
1151 | * Used when the plane's current framebuffer is destroyed, | |
1152 | * and when restoring fbdev mode. | |
1153 | */ | |
9125e618 VS |
1154 | void drm_plane_force_disable(struct drm_plane *plane) |
1155 | { | |
0fe27f06 | 1156 | struct drm_framebuffer *old_fb = plane->fb; |
9125e618 VS |
1157 | int ret; |
1158 | ||
0fe27f06 | 1159 | if (!old_fb) |
9125e618 VS |
1160 | return; |
1161 | ||
1162 | ret = plane->funcs->disable_plane(plane); | |
731cce48 | 1163 | if (ret) { |
9125e618 | 1164 | DRM_ERROR("failed to disable plane with busy fb\n"); |
731cce48 DV |
1165 | return; |
1166 | } | |
9125e618 | 1167 | /* disconnect the plane from the fb and crtc: */ |
0fe27f06 | 1168 | __drm_framebuffer_unreference(old_fb); |
9125e618 VS |
1169 | plane->fb = NULL; |
1170 | plane->crtc = NULL; | |
1171 | } | |
1172 | EXPORT_SYMBOL(drm_plane_force_disable); | |
1173 | ||
f453ba04 DA |
1174 | static int drm_mode_create_standard_connector_properties(struct drm_device *dev) |
1175 | { | |
1176 | struct drm_property *edid; | |
1177 | struct drm_property *dpms; | |
f453ba04 DA |
1178 | |
1179 | /* | |
1180 | * Standard properties (apply to all connectors) | |
1181 | */ | |
1182 | edid = drm_property_create(dev, DRM_MODE_PROP_BLOB | | |
1183 | DRM_MODE_PROP_IMMUTABLE, | |
1184 | "EDID", 0); | |
1185 | dev->mode_config.edid_property = edid; | |
1186 | ||
4a67d391 SH |
1187 | dpms = drm_property_create_enum(dev, 0, |
1188 | "DPMS", drm_dpms_enum_list, | |
1189 | ARRAY_SIZE(drm_dpms_enum_list)); | |
f453ba04 DA |
1190 | dev->mode_config.dpms_property = dpms; |
1191 | ||
1192 | return 0; | |
1193 | } | |
1194 | ||
9922ab5a RC |
1195 | static int drm_mode_create_standard_plane_properties(struct drm_device *dev) |
1196 | { | |
1197 | struct drm_property *type; | |
1198 | ||
1199 | /* | |
1200 | * Standard properties (apply to all planes) | |
1201 | */ | |
1202 | type = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, | |
1203 | "type", drm_plane_type_enum_list, | |
1204 | ARRAY_SIZE(drm_plane_type_enum_list)); | |
1205 | dev->mode_config.plane_type_property = type; | |
1206 | ||
1207 | return 0; | |
1208 | } | |
1209 | ||
f453ba04 DA |
1210 | /** |
1211 | * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties | |
1212 | * @dev: DRM device | |
1213 | * | |
1214 | * Called by a driver the first time a DVI-I connector is made. | |
1215 | */ | |
1216 | int drm_mode_create_dvi_i_properties(struct drm_device *dev) | |
1217 | { | |
1218 | struct drm_property *dvi_i_selector; | |
1219 | struct drm_property *dvi_i_subconnector; | |
f453ba04 DA |
1220 | |
1221 | if (dev->mode_config.dvi_i_select_subconnector_property) | |
1222 | return 0; | |
1223 | ||
1224 | dvi_i_selector = | |
4a67d391 | 1225 | drm_property_create_enum(dev, 0, |
f453ba04 | 1226 | "select subconnector", |
4a67d391 | 1227 | drm_dvi_i_select_enum_list, |
f453ba04 | 1228 | ARRAY_SIZE(drm_dvi_i_select_enum_list)); |
f453ba04 DA |
1229 | dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; |
1230 | ||
4a67d391 | 1231 | dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
f453ba04 | 1232 | "subconnector", |
4a67d391 | 1233 | drm_dvi_i_subconnector_enum_list, |
f453ba04 | 1234 | ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); |
f453ba04 DA |
1235 | dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; |
1236 | ||
1237 | return 0; | |
1238 | } | |
1239 | EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); | |
1240 | ||
1241 | /** | |
1242 | * drm_create_tv_properties - create TV specific connector properties | |
1243 | * @dev: DRM device | |
1244 | * @num_modes: number of different TV formats (modes) supported | |
1245 | * @modes: array of pointers to strings containing name of each format | |
1246 | * | |
1247 | * Called by a driver's TV initialization routine, this function creates | |
1248 | * the TV specific connector properties for a given device. Caller is | |
1249 | * responsible for allocating a list of format names and passing them to | |
1250 | * this routine. | |
1251 | */ | |
1252 | int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes, | |
1253 | char *modes[]) | |
1254 | { | |
1255 | struct drm_property *tv_selector; | |
1256 | struct drm_property *tv_subconnector; | |
1257 | int i; | |
1258 | ||
1259 | if (dev->mode_config.tv_select_subconnector_property) | |
1260 | return 0; | |
1261 | ||
1262 | /* | |
1263 | * Basic connector properties | |
1264 | */ | |
4a67d391 | 1265 | tv_selector = drm_property_create_enum(dev, 0, |
f453ba04 | 1266 | "select subconnector", |
4a67d391 | 1267 | drm_tv_select_enum_list, |
f453ba04 | 1268 | ARRAY_SIZE(drm_tv_select_enum_list)); |
f453ba04 DA |
1269 | dev->mode_config.tv_select_subconnector_property = tv_selector; |
1270 | ||
1271 | tv_subconnector = | |
4a67d391 SH |
1272 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
1273 | "subconnector", | |
1274 | drm_tv_subconnector_enum_list, | |
f453ba04 | 1275 | ARRAY_SIZE(drm_tv_subconnector_enum_list)); |
f453ba04 DA |
1276 | dev->mode_config.tv_subconnector_property = tv_subconnector; |
1277 | ||
1278 | /* | |
1279 | * Other, TV specific properties: margins & TV modes. | |
1280 | */ | |
1281 | dev->mode_config.tv_left_margin_property = | |
d9bc3c02 | 1282 | drm_property_create_range(dev, 0, "left margin", 0, 100); |
f453ba04 DA |
1283 | |
1284 | dev->mode_config.tv_right_margin_property = | |
d9bc3c02 | 1285 | drm_property_create_range(dev, 0, "right margin", 0, 100); |
f453ba04 DA |
1286 | |
1287 | dev->mode_config.tv_top_margin_property = | |
d9bc3c02 | 1288 | drm_property_create_range(dev, 0, "top margin", 0, 100); |
f453ba04 DA |
1289 | |
1290 | dev->mode_config.tv_bottom_margin_property = | |
d9bc3c02 | 1291 | drm_property_create_range(dev, 0, "bottom margin", 0, 100); |
f453ba04 DA |
1292 | |
1293 | dev->mode_config.tv_mode_property = | |
1294 | drm_property_create(dev, DRM_MODE_PROP_ENUM, | |
1295 | "mode", num_modes); | |
1296 | for (i = 0; i < num_modes; i++) | |
1297 | drm_property_add_enum(dev->mode_config.tv_mode_property, i, | |
1298 | i, modes[i]); | |
1299 | ||
b6b7902e | 1300 | dev->mode_config.tv_brightness_property = |
d9bc3c02 | 1301 | drm_property_create_range(dev, 0, "brightness", 0, 100); |
b6b7902e FJ |
1302 | |
1303 | dev->mode_config.tv_contrast_property = | |
d9bc3c02 | 1304 | drm_property_create_range(dev, 0, "contrast", 0, 100); |
b6b7902e FJ |
1305 | |
1306 | dev->mode_config.tv_flicker_reduction_property = | |
d9bc3c02 | 1307 | drm_property_create_range(dev, 0, "flicker reduction", 0, 100); |
b6b7902e | 1308 | |
a75f0236 | 1309 | dev->mode_config.tv_overscan_property = |
d9bc3c02 | 1310 | drm_property_create_range(dev, 0, "overscan", 0, 100); |
a75f0236 FJ |
1311 | |
1312 | dev->mode_config.tv_saturation_property = | |
d9bc3c02 | 1313 | drm_property_create_range(dev, 0, "saturation", 0, 100); |
a75f0236 FJ |
1314 | |
1315 | dev->mode_config.tv_hue_property = | |
d9bc3c02 | 1316 | drm_property_create_range(dev, 0, "hue", 0, 100); |
a75f0236 | 1317 | |
f453ba04 DA |
1318 | return 0; |
1319 | } | |
1320 | EXPORT_SYMBOL(drm_mode_create_tv_properties); | |
1321 | ||
1322 | /** | |
1323 | * drm_mode_create_scaling_mode_property - create scaling mode property | |
1324 | * @dev: DRM device | |
1325 | * | |
1326 | * Called by a driver the first time it's needed, must be attached to desired | |
1327 | * connectors. | |
1328 | */ | |
1329 | int drm_mode_create_scaling_mode_property(struct drm_device *dev) | |
1330 | { | |
1331 | struct drm_property *scaling_mode; | |
f453ba04 DA |
1332 | |
1333 | if (dev->mode_config.scaling_mode_property) | |
1334 | return 0; | |
1335 | ||
1336 | scaling_mode = | |
4a67d391 SH |
1337 | drm_property_create_enum(dev, 0, "scaling mode", |
1338 | drm_scaling_mode_enum_list, | |
f453ba04 | 1339 | ARRAY_SIZE(drm_scaling_mode_enum_list)); |
f453ba04 DA |
1340 | |
1341 | dev->mode_config.scaling_mode_property = scaling_mode; | |
1342 | ||
1343 | return 0; | |
1344 | } | |
1345 | EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); | |
1346 | ||
884840aa JB |
1347 | /** |
1348 | * drm_mode_create_dirty_property - create dirty property | |
1349 | * @dev: DRM device | |
1350 | * | |
1351 | * Called by a driver the first time it's needed, must be attached to desired | |
1352 | * connectors. | |
1353 | */ | |
1354 | int drm_mode_create_dirty_info_property(struct drm_device *dev) | |
1355 | { | |
1356 | struct drm_property *dirty_info; | |
884840aa JB |
1357 | |
1358 | if (dev->mode_config.dirty_info_property) | |
1359 | return 0; | |
1360 | ||
1361 | dirty_info = | |
4a67d391 | 1362 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
884840aa | 1363 | "dirty", |
4a67d391 | 1364 | drm_dirty_info_enum_list, |
884840aa | 1365 | ARRAY_SIZE(drm_dirty_info_enum_list)); |
884840aa JB |
1366 | dev->mode_config.dirty_info_property = dirty_info; |
1367 | ||
1368 | return 0; | |
1369 | } | |
1370 | EXPORT_SYMBOL(drm_mode_create_dirty_info_property); | |
1371 | ||
ea9cbb06 | 1372 | static int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group) |
f453ba04 DA |
1373 | { |
1374 | uint32_t total_objects = 0; | |
1375 | ||
1376 | total_objects += dev->mode_config.num_crtc; | |
1377 | total_objects += dev->mode_config.num_connector; | |
1378 | total_objects += dev->mode_config.num_encoder; | |
3b336ec4 | 1379 | total_objects += dev->mode_config.num_bridge; |
f453ba04 | 1380 | |
f453ba04 DA |
1381 | group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL); |
1382 | if (!group->id_list) | |
1383 | return -ENOMEM; | |
1384 | ||
1385 | group->num_crtcs = 0; | |
1386 | group->num_connectors = 0; | |
1387 | group->num_encoders = 0; | |
3b336ec4 | 1388 | group->num_bridges = 0; |
f453ba04 DA |
1389 | return 0; |
1390 | } | |
1391 | ||
ad222799 DA |
1392 | void drm_mode_group_destroy(struct drm_mode_group *group) |
1393 | { | |
1394 | kfree(group->id_list); | |
1395 | group->id_list = NULL; | |
1396 | } | |
1397 | ||
c8e32cc1 DV |
1398 | /* |
1399 | * NOTE: Driver's shouldn't ever call drm_mode_group_init_legacy_group - it is | |
1400 | * the drm core's responsibility to set up mode control groups. | |
1401 | */ | |
f453ba04 DA |
1402 | int drm_mode_group_init_legacy_group(struct drm_device *dev, |
1403 | struct drm_mode_group *group) | |
1404 | { | |
1405 | struct drm_crtc *crtc; | |
1406 | struct drm_encoder *encoder; | |
1407 | struct drm_connector *connector; | |
3b336ec4 | 1408 | struct drm_bridge *bridge; |
f453ba04 DA |
1409 | int ret; |
1410 | ||
1411 | if ((ret = drm_mode_group_init(dev, group))) | |
1412 | return ret; | |
1413 | ||
1414 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) | |
1415 | group->id_list[group->num_crtcs++] = crtc->base.id; | |
1416 | ||
1417 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) | |
1418 | group->id_list[group->num_crtcs + group->num_encoders++] = | |
1419 | encoder->base.id; | |
1420 | ||
1421 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) | |
1422 | group->id_list[group->num_crtcs + group->num_encoders + | |
1423 | group->num_connectors++] = connector->base.id; | |
1424 | ||
3b336ec4 SP |
1425 | list_for_each_entry(bridge, &dev->mode_config.bridge_list, head) |
1426 | group->id_list[group->num_crtcs + group->num_encoders + | |
1427 | group->num_connectors + group->num_bridges++] = | |
1428 | bridge->base.id; | |
1429 | ||
f453ba04 DA |
1430 | return 0; |
1431 | } | |
9c1dfc55 | 1432 | EXPORT_SYMBOL(drm_mode_group_init_legacy_group); |
f453ba04 | 1433 | |
f453ba04 DA |
1434 | /** |
1435 | * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo | |
1436 | * @out: drm_mode_modeinfo struct to return to the user | |
1437 | * @in: drm_display_mode to use | |
1438 | * | |
f453ba04 DA |
1439 | * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to |
1440 | * the user. | |
1441 | */ | |
93bbf6db VS |
1442 | static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out, |
1443 | const struct drm_display_mode *in) | |
f453ba04 | 1444 | { |
e36fae38 VS |
1445 | WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX || |
1446 | in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX || | |
1447 | in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX || | |
1448 | in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX || | |
1449 | in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX, | |
1450 | "timing values too large for mode info\n"); | |
1451 | ||
f453ba04 DA |
1452 | out->clock = in->clock; |
1453 | out->hdisplay = in->hdisplay; | |
1454 | out->hsync_start = in->hsync_start; | |
1455 | out->hsync_end = in->hsync_end; | |
1456 | out->htotal = in->htotal; | |
1457 | out->hskew = in->hskew; | |
1458 | out->vdisplay = in->vdisplay; | |
1459 | out->vsync_start = in->vsync_start; | |
1460 | out->vsync_end = in->vsync_end; | |
1461 | out->vtotal = in->vtotal; | |
1462 | out->vscan = in->vscan; | |
1463 | out->vrefresh = in->vrefresh; | |
1464 | out->flags = in->flags; | |
1465 | out->type = in->type; | |
1466 | strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); | |
1467 | out->name[DRM_DISPLAY_MODE_LEN-1] = 0; | |
1468 | } | |
1469 | ||
1470 | /** | |
74afee7d | 1471 | * drm_crtc_convert_umode - convert a modeinfo into a drm_display_mode |
f453ba04 DA |
1472 | * @out: drm_display_mode to return to the user |
1473 | * @in: drm_mode_modeinfo to use | |
1474 | * | |
f453ba04 DA |
1475 | * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to |
1476 | * the caller. | |
90367bf6 | 1477 | * |
c8e32cc1 | 1478 | * Returns: |
90367bf6 | 1479 | * Zero on success, errno on failure. |
f453ba04 | 1480 | */ |
93bbf6db VS |
1481 | static int drm_crtc_convert_umode(struct drm_display_mode *out, |
1482 | const struct drm_mode_modeinfo *in) | |
f453ba04 | 1483 | { |
90367bf6 VS |
1484 | if (in->clock > INT_MAX || in->vrefresh > INT_MAX) |
1485 | return -ERANGE; | |
1486 | ||
5848ad40 DL |
1487 | if ((in->flags & DRM_MODE_FLAG_3D_MASK) > DRM_MODE_FLAG_3D_MAX) |
1488 | return -EINVAL; | |
1489 | ||
f453ba04 DA |
1490 | out->clock = in->clock; |
1491 | out->hdisplay = in->hdisplay; | |
1492 | out->hsync_start = in->hsync_start; | |
1493 | out->hsync_end = in->hsync_end; | |
1494 | out->htotal = in->htotal; | |
1495 | out->hskew = in->hskew; | |
1496 | out->vdisplay = in->vdisplay; | |
1497 | out->vsync_start = in->vsync_start; | |
1498 | out->vsync_end = in->vsync_end; | |
1499 | out->vtotal = in->vtotal; | |
1500 | out->vscan = in->vscan; | |
1501 | out->vrefresh = in->vrefresh; | |
1502 | out->flags = in->flags; | |
1503 | out->type = in->type; | |
1504 | strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); | |
1505 | out->name[DRM_DISPLAY_MODE_LEN-1] = 0; | |
90367bf6 VS |
1506 | |
1507 | return 0; | |
f453ba04 DA |
1508 | } |
1509 | ||
1510 | /** | |
1511 | * drm_mode_getresources - get graphics configuration | |
065a50ed DV |
1512 | * @dev: drm device for the ioctl |
1513 | * @data: data pointer for the ioctl | |
1514 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1515 | * |
f453ba04 DA |
1516 | * Construct a set of configuration description structures and return |
1517 | * them to the user, including CRTC, connector and framebuffer configuration. | |
1518 | * | |
1519 | * Called by the user via ioctl. | |
1520 | * | |
c8e32cc1 | 1521 | * Returns: |
f453ba04 DA |
1522 | * Zero on success, errno on failure. |
1523 | */ | |
1524 | int drm_mode_getresources(struct drm_device *dev, void *data, | |
1525 | struct drm_file *file_priv) | |
1526 | { | |
1527 | struct drm_mode_card_res *card_res = data; | |
1528 | struct list_head *lh; | |
1529 | struct drm_framebuffer *fb; | |
1530 | struct drm_connector *connector; | |
1531 | struct drm_crtc *crtc; | |
1532 | struct drm_encoder *encoder; | |
1533 | int ret = 0; | |
1534 | int connector_count = 0; | |
1535 | int crtc_count = 0; | |
1536 | int fb_count = 0; | |
1537 | int encoder_count = 0; | |
1538 | int copied = 0, i; | |
1539 | uint32_t __user *fb_id; | |
1540 | uint32_t __user *crtc_id; | |
1541 | uint32_t __user *connector_id; | |
1542 | uint32_t __user *encoder_id; | |
1543 | struct drm_mode_group *mode_group; | |
1544 | ||
fb3b06c8 DA |
1545 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1546 | return -EINVAL; | |
1547 | ||
f453ba04 | 1548 | |
4b096ac1 | 1549 | mutex_lock(&file_priv->fbs_lock); |
f453ba04 DA |
1550 | /* |
1551 | * For the non-control nodes we need to limit the list of resources | |
1552 | * by IDs in the group list for this node | |
1553 | */ | |
1554 | list_for_each(lh, &file_priv->fbs) | |
1555 | fb_count++; | |
1556 | ||
4b096ac1 DV |
1557 | /* handle this in 4 parts */ |
1558 | /* FBs */ | |
1559 | if (card_res->count_fbs >= fb_count) { | |
1560 | copied = 0; | |
1561 | fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; | |
1562 | list_for_each_entry(fb, &file_priv->fbs, filp_head) { | |
1563 | if (put_user(fb->base.id, fb_id + copied)) { | |
1564 | mutex_unlock(&file_priv->fbs_lock); | |
1565 | return -EFAULT; | |
1566 | } | |
1567 | copied++; | |
1568 | } | |
1569 | } | |
1570 | card_res->count_fbs = fb_count; | |
1571 | mutex_unlock(&file_priv->fbs_lock); | |
1572 | ||
1573 | drm_modeset_lock_all(dev); | |
43683057 | 1574 | if (!drm_is_primary_client(file_priv)) { |
f453ba04 | 1575 | |
09f308f7 | 1576 | mode_group = NULL; |
f453ba04 DA |
1577 | list_for_each(lh, &dev->mode_config.crtc_list) |
1578 | crtc_count++; | |
1579 | ||
1580 | list_for_each(lh, &dev->mode_config.connector_list) | |
1581 | connector_count++; | |
1582 | ||
1583 | list_for_each(lh, &dev->mode_config.encoder_list) | |
1584 | encoder_count++; | |
1585 | } else { | |
1586 | ||
09f308f7 | 1587 | mode_group = &file_priv->master->minor->mode_group; |
f453ba04 DA |
1588 | crtc_count = mode_group->num_crtcs; |
1589 | connector_count = mode_group->num_connectors; | |
1590 | encoder_count = mode_group->num_encoders; | |
1591 | } | |
1592 | ||
1593 | card_res->max_height = dev->mode_config.max_height; | |
1594 | card_res->min_height = dev->mode_config.min_height; | |
1595 | card_res->max_width = dev->mode_config.max_width; | |
1596 | card_res->min_width = dev->mode_config.min_width; | |
1597 | ||
f453ba04 DA |
1598 | /* CRTCs */ |
1599 | if (card_res->count_crtcs >= crtc_count) { | |
1600 | copied = 0; | |
1601 | crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; | |
09f308f7 | 1602 | if (!mode_group) { |
f453ba04 DA |
1603 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, |
1604 | head) { | |
9440106b | 1605 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
f453ba04 DA |
1606 | if (put_user(crtc->base.id, crtc_id + copied)) { |
1607 | ret = -EFAULT; | |
1608 | goto out; | |
1609 | } | |
1610 | copied++; | |
1611 | } | |
1612 | } else { | |
1613 | for (i = 0; i < mode_group->num_crtcs; i++) { | |
1614 | if (put_user(mode_group->id_list[i], | |
1615 | crtc_id + copied)) { | |
1616 | ret = -EFAULT; | |
1617 | goto out; | |
1618 | } | |
1619 | copied++; | |
1620 | } | |
1621 | } | |
1622 | } | |
1623 | card_res->count_crtcs = crtc_count; | |
1624 | ||
1625 | /* Encoders */ | |
1626 | if (card_res->count_encoders >= encoder_count) { | |
1627 | copied = 0; | |
1628 | encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; | |
09f308f7 | 1629 | if (!mode_group) { |
f453ba04 DA |
1630 | list_for_each_entry(encoder, |
1631 | &dev->mode_config.encoder_list, | |
1632 | head) { | |
9440106b JG |
1633 | DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id, |
1634 | drm_get_encoder_name(encoder)); | |
f453ba04 DA |
1635 | if (put_user(encoder->base.id, encoder_id + |
1636 | copied)) { | |
1637 | ret = -EFAULT; | |
1638 | goto out; | |
1639 | } | |
1640 | copied++; | |
1641 | } | |
1642 | } else { | |
1643 | for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) { | |
1644 | if (put_user(mode_group->id_list[i], | |
1645 | encoder_id + copied)) { | |
1646 | ret = -EFAULT; | |
1647 | goto out; | |
1648 | } | |
1649 | copied++; | |
1650 | } | |
1651 | ||
1652 | } | |
1653 | } | |
1654 | card_res->count_encoders = encoder_count; | |
1655 | ||
1656 | /* Connectors */ | |
1657 | if (card_res->count_connectors >= connector_count) { | |
1658 | copied = 0; | |
1659 | connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; | |
09f308f7 | 1660 | if (!mode_group) { |
f453ba04 DA |
1661 | list_for_each_entry(connector, |
1662 | &dev->mode_config.connector_list, | |
1663 | head) { | |
9440106b JG |
1664 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
1665 | connector->base.id, | |
25933820 | 1666 | connector->name); |
f453ba04 DA |
1667 | if (put_user(connector->base.id, |
1668 | connector_id + copied)) { | |
1669 | ret = -EFAULT; | |
1670 | goto out; | |
1671 | } | |
1672 | copied++; | |
1673 | } | |
1674 | } else { | |
1675 | int start = mode_group->num_crtcs + | |
1676 | mode_group->num_encoders; | |
1677 | for (i = start; i < start + mode_group->num_connectors; i++) { | |
1678 | if (put_user(mode_group->id_list[i], | |
1679 | connector_id + copied)) { | |
1680 | ret = -EFAULT; | |
1681 | goto out; | |
1682 | } | |
1683 | copied++; | |
1684 | } | |
1685 | } | |
1686 | } | |
1687 | card_res->count_connectors = connector_count; | |
1688 | ||
9440106b | 1689 | DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs, |
f453ba04 DA |
1690 | card_res->count_connectors, card_res->count_encoders); |
1691 | ||
1692 | out: | |
84849903 | 1693 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1694 | return ret; |
1695 | } | |
1696 | ||
1697 | /** | |
1698 | * drm_mode_getcrtc - get CRTC configuration | |
065a50ed DV |
1699 | * @dev: drm device for the ioctl |
1700 | * @data: data pointer for the ioctl | |
1701 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1702 | * |
f453ba04 DA |
1703 | * Construct a CRTC configuration structure to return to the user. |
1704 | * | |
1705 | * Called by the user via ioctl. | |
1706 | * | |
c8e32cc1 | 1707 | * Returns: |
f453ba04 DA |
1708 | * Zero on success, errno on failure. |
1709 | */ | |
1710 | int drm_mode_getcrtc(struct drm_device *dev, | |
1711 | void *data, struct drm_file *file_priv) | |
1712 | { | |
1713 | struct drm_mode_crtc *crtc_resp = data; | |
1714 | struct drm_crtc *crtc; | |
1715 | struct drm_mode_object *obj; | |
1716 | int ret = 0; | |
1717 | ||
fb3b06c8 DA |
1718 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1719 | return -EINVAL; | |
1720 | ||
84849903 | 1721 | drm_modeset_lock_all(dev); |
f453ba04 DA |
1722 | |
1723 | obj = drm_mode_object_find(dev, crtc_resp->crtc_id, | |
1724 | DRM_MODE_OBJECT_CRTC); | |
1725 | if (!obj) { | |
f27657f2 | 1726 | ret = -ENOENT; |
f453ba04 DA |
1727 | goto out; |
1728 | } | |
1729 | crtc = obj_to_crtc(obj); | |
1730 | ||
1731 | crtc_resp->x = crtc->x; | |
1732 | crtc_resp->y = crtc->y; | |
1733 | crtc_resp->gamma_size = crtc->gamma_size; | |
f4510a27 MR |
1734 | if (crtc->primary->fb) |
1735 | crtc_resp->fb_id = crtc->primary->fb->base.id; | |
f453ba04 DA |
1736 | else |
1737 | crtc_resp->fb_id = 0; | |
1738 | ||
1739 | if (crtc->enabled) { | |
1740 | ||
1741 | drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode); | |
1742 | crtc_resp->mode_valid = 1; | |
1743 | ||
1744 | } else { | |
1745 | crtc_resp->mode_valid = 0; | |
1746 | } | |
1747 | ||
1748 | out: | |
84849903 | 1749 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1750 | return ret; |
1751 | } | |
1752 | ||
61d8e328 DL |
1753 | static bool drm_mode_expose_to_userspace(const struct drm_display_mode *mode, |
1754 | const struct drm_file *file_priv) | |
1755 | { | |
1756 | /* | |
1757 | * If user-space hasn't configured the driver to expose the stereo 3D | |
1758 | * modes, don't expose them. | |
1759 | */ | |
1760 | if (!file_priv->stereo_allowed && drm_mode_is_stereo(mode)) | |
1761 | return false; | |
1762 | ||
1763 | return true; | |
1764 | } | |
1765 | ||
f453ba04 DA |
1766 | /** |
1767 | * drm_mode_getconnector - get connector configuration | |
065a50ed DV |
1768 | * @dev: drm device for the ioctl |
1769 | * @data: data pointer for the ioctl | |
1770 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1771 | * |
f453ba04 DA |
1772 | * Construct a connector configuration structure to return to the user. |
1773 | * | |
1774 | * Called by the user via ioctl. | |
1775 | * | |
c8e32cc1 | 1776 | * Returns: |
f453ba04 DA |
1777 | * Zero on success, errno on failure. |
1778 | */ | |
1779 | int drm_mode_getconnector(struct drm_device *dev, void *data, | |
1780 | struct drm_file *file_priv) | |
1781 | { | |
1782 | struct drm_mode_get_connector *out_resp = data; | |
1783 | struct drm_mode_object *obj; | |
1784 | struct drm_connector *connector; | |
1785 | struct drm_display_mode *mode; | |
1786 | int mode_count = 0; | |
1787 | int props_count = 0; | |
1788 | int encoders_count = 0; | |
1789 | int ret = 0; | |
1790 | int copied = 0; | |
1791 | int i; | |
1792 | struct drm_mode_modeinfo u_mode; | |
1793 | struct drm_mode_modeinfo __user *mode_ptr; | |
1794 | uint32_t __user *prop_ptr; | |
1795 | uint64_t __user *prop_values; | |
1796 | uint32_t __user *encoder_ptr; | |
1797 | ||
fb3b06c8 DA |
1798 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1799 | return -EINVAL; | |
1800 | ||
f453ba04 DA |
1801 | memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); |
1802 | ||
9440106b | 1803 | DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id); |
f453ba04 | 1804 | |
7b24056b | 1805 | mutex_lock(&dev->mode_config.mutex); |
f453ba04 DA |
1806 | |
1807 | obj = drm_mode_object_find(dev, out_resp->connector_id, | |
1808 | DRM_MODE_OBJECT_CONNECTOR); | |
1809 | if (!obj) { | |
f27657f2 | 1810 | ret = -ENOENT; |
f453ba04 DA |
1811 | goto out; |
1812 | } | |
1813 | connector = obj_to_connector(obj); | |
1814 | ||
7f88a9be | 1815 | props_count = connector->properties.count; |
f453ba04 DA |
1816 | |
1817 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { | |
1818 | if (connector->encoder_ids[i] != 0) { | |
1819 | encoders_count++; | |
1820 | } | |
1821 | } | |
1822 | ||
1823 | if (out_resp->count_modes == 0) { | |
1824 | connector->funcs->fill_modes(connector, | |
1825 | dev->mode_config.max_width, | |
1826 | dev->mode_config.max_height); | |
1827 | } | |
1828 | ||
1829 | /* delayed so we get modes regardless of pre-fill_modes state */ | |
1830 | list_for_each_entry(mode, &connector->modes, head) | |
61d8e328 DL |
1831 | if (drm_mode_expose_to_userspace(mode, file_priv)) |
1832 | mode_count++; | |
f453ba04 DA |
1833 | |
1834 | out_resp->connector_id = connector->base.id; | |
1835 | out_resp->connector_type = connector->connector_type; | |
1836 | out_resp->connector_type_id = connector->connector_type_id; | |
1837 | out_resp->mm_width = connector->display_info.width_mm; | |
1838 | out_resp->mm_height = connector->display_info.height_mm; | |
1839 | out_resp->subpixel = connector->display_info.subpixel_order; | |
1840 | out_resp->connection = connector->status; | |
1841 | if (connector->encoder) | |
1842 | out_resp->encoder_id = connector->encoder->base.id; | |
1843 | else | |
1844 | out_resp->encoder_id = 0; | |
1845 | ||
1846 | /* | |
1847 | * This ioctl is called twice, once to determine how much space is | |
1848 | * needed, and the 2nd time to fill it. | |
1849 | */ | |
1850 | if ((out_resp->count_modes >= mode_count) && mode_count) { | |
1851 | copied = 0; | |
81f6c7f8 | 1852 | mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; |
f453ba04 | 1853 | list_for_each_entry(mode, &connector->modes, head) { |
61d8e328 DL |
1854 | if (!drm_mode_expose_to_userspace(mode, file_priv)) |
1855 | continue; | |
1856 | ||
f453ba04 DA |
1857 | drm_crtc_convert_to_umode(&u_mode, mode); |
1858 | if (copy_to_user(mode_ptr + copied, | |
1859 | &u_mode, sizeof(u_mode))) { | |
1860 | ret = -EFAULT; | |
1861 | goto out; | |
1862 | } | |
1863 | copied++; | |
1864 | } | |
1865 | } | |
1866 | out_resp->count_modes = mode_count; | |
1867 | ||
1868 | if ((out_resp->count_props >= props_count) && props_count) { | |
1869 | copied = 0; | |
81f6c7f8 VS |
1870 | prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr); |
1871 | prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr); | |
7f88a9be PZ |
1872 | for (i = 0; i < connector->properties.count; i++) { |
1873 | if (put_user(connector->properties.ids[i], | |
1874 | prop_ptr + copied)) { | |
1875 | ret = -EFAULT; | |
1876 | goto out; | |
1877 | } | |
f453ba04 | 1878 | |
7f88a9be PZ |
1879 | if (put_user(connector->properties.values[i], |
1880 | prop_values + copied)) { | |
1881 | ret = -EFAULT; | |
1882 | goto out; | |
f453ba04 | 1883 | } |
7f88a9be | 1884 | copied++; |
f453ba04 DA |
1885 | } |
1886 | } | |
1887 | out_resp->count_props = props_count; | |
1888 | ||
1889 | if ((out_resp->count_encoders >= encoders_count) && encoders_count) { | |
1890 | copied = 0; | |
81f6c7f8 | 1891 | encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); |
f453ba04 DA |
1892 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
1893 | if (connector->encoder_ids[i] != 0) { | |
1894 | if (put_user(connector->encoder_ids[i], | |
1895 | encoder_ptr + copied)) { | |
1896 | ret = -EFAULT; | |
1897 | goto out; | |
1898 | } | |
1899 | copied++; | |
1900 | } | |
1901 | } | |
1902 | } | |
1903 | out_resp->count_encoders = encoders_count; | |
1904 | ||
1905 | out: | |
7b24056b DV |
1906 | mutex_unlock(&dev->mode_config.mutex); |
1907 | ||
f453ba04 DA |
1908 | return ret; |
1909 | } | |
1910 | ||
c8e32cc1 DV |
1911 | /** |
1912 | * drm_mode_getencoder - get encoder configuration | |
1913 | * @dev: drm device for the ioctl | |
1914 | * @data: data pointer for the ioctl | |
1915 | * @file_priv: drm file for the ioctl call | |
1916 | * | |
1917 | * Construct a encoder configuration structure to return to the user. | |
1918 | * | |
1919 | * Called by the user via ioctl. | |
1920 | * | |
1921 | * Returns: | |
1922 | * Zero on success, errno on failure. | |
1923 | */ | |
f453ba04 DA |
1924 | int drm_mode_getencoder(struct drm_device *dev, void *data, |
1925 | struct drm_file *file_priv) | |
1926 | { | |
1927 | struct drm_mode_get_encoder *enc_resp = data; | |
1928 | struct drm_mode_object *obj; | |
1929 | struct drm_encoder *encoder; | |
1930 | int ret = 0; | |
1931 | ||
fb3b06c8 DA |
1932 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1933 | return -EINVAL; | |
1934 | ||
84849903 | 1935 | drm_modeset_lock_all(dev); |
f453ba04 DA |
1936 | obj = drm_mode_object_find(dev, enc_resp->encoder_id, |
1937 | DRM_MODE_OBJECT_ENCODER); | |
1938 | if (!obj) { | |
f27657f2 | 1939 | ret = -ENOENT; |
f453ba04 DA |
1940 | goto out; |
1941 | } | |
1942 | encoder = obj_to_encoder(obj); | |
1943 | ||
1944 | if (encoder->crtc) | |
1945 | enc_resp->crtc_id = encoder->crtc->base.id; | |
1946 | else | |
1947 | enc_resp->crtc_id = 0; | |
1948 | enc_resp->encoder_type = encoder->encoder_type; | |
1949 | enc_resp->encoder_id = encoder->base.id; | |
1950 | enc_resp->possible_crtcs = encoder->possible_crtcs; | |
1951 | enc_resp->possible_clones = encoder->possible_clones; | |
1952 | ||
1953 | out: | |
84849903 | 1954 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1955 | return ret; |
1956 | } | |
1957 | ||
8cf5c917 | 1958 | /** |
c8e32cc1 | 1959 | * drm_mode_getplane_res - enumerate all plane resources |
8cf5c917 JB |
1960 | * @dev: DRM device |
1961 | * @data: ioctl data | |
1962 | * @file_priv: DRM file info | |
1963 | * | |
c8e32cc1 DV |
1964 | * Construct a list of plane ids to return to the user. |
1965 | * | |
1966 | * Called by the user via ioctl. | |
1967 | * | |
1968 | * Returns: | |
1969 | * Zero on success, errno on failure. | |
8cf5c917 JB |
1970 | */ |
1971 | int drm_mode_getplane_res(struct drm_device *dev, void *data, | |
c8e32cc1 | 1972 | struct drm_file *file_priv) |
8cf5c917 JB |
1973 | { |
1974 | struct drm_mode_get_plane_res *plane_resp = data; | |
1975 | struct drm_mode_config *config; | |
1976 | struct drm_plane *plane; | |
1977 | uint32_t __user *plane_ptr; | |
1978 | int copied = 0, ret = 0; | |
681e7ec7 | 1979 | unsigned num_planes; |
8cf5c917 JB |
1980 | |
1981 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
1982 | return -EINVAL; | |
1983 | ||
84849903 | 1984 | drm_modeset_lock_all(dev); |
8cf5c917 JB |
1985 | config = &dev->mode_config; |
1986 | ||
681e7ec7 MR |
1987 | if (file_priv->universal_planes) |
1988 | num_planes = config->num_total_plane; | |
1989 | else | |
1990 | num_planes = config->num_overlay_plane; | |
1991 | ||
8cf5c917 JB |
1992 | /* |
1993 | * This ioctl is called twice, once to determine how much space is | |
1994 | * needed, and the 2nd time to fill it. | |
1995 | */ | |
681e7ec7 MR |
1996 | if (num_planes && |
1997 | (plane_resp->count_planes >= num_planes)) { | |
81f6c7f8 | 1998 | plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; |
8cf5c917 JB |
1999 | |
2000 | list_for_each_entry(plane, &config->plane_list, head) { | |
681e7ec7 MR |
2001 | /* |
2002 | * Unless userspace set the 'universal planes' | |
2003 | * capability bit, only advertise overlays. | |
2004 | */ | |
2005 | if (plane->type != DRM_PLANE_TYPE_OVERLAY && | |
2006 | !file_priv->universal_planes) | |
e27dde3e MR |
2007 | continue; |
2008 | ||
8cf5c917 JB |
2009 | if (put_user(plane->base.id, plane_ptr + copied)) { |
2010 | ret = -EFAULT; | |
2011 | goto out; | |
2012 | } | |
2013 | copied++; | |
2014 | } | |
2015 | } | |
681e7ec7 | 2016 | plane_resp->count_planes = num_planes; |
8cf5c917 JB |
2017 | |
2018 | out: | |
84849903 | 2019 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
2020 | return ret; |
2021 | } | |
2022 | ||
2023 | /** | |
c8e32cc1 | 2024 | * drm_mode_getplane - get plane configuration |
8cf5c917 JB |
2025 | * @dev: DRM device |
2026 | * @data: ioctl data | |
2027 | * @file_priv: DRM file info | |
2028 | * | |
c8e32cc1 DV |
2029 | * Construct a plane configuration structure to return to the user. |
2030 | * | |
2031 | * Called by the user via ioctl. | |
2032 | * | |
2033 | * Returns: | |
2034 | * Zero on success, errno on failure. | |
8cf5c917 JB |
2035 | */ |
2036 | int drm_mode_getplane(struct drm_device *dev, void *data, | |
c8e32cc1 | 2037 | struct drm_file *file_priv) |
8cf5c917 JB |
2038 | { |
2039 | struct drm_mode_get_plane *plane_resp = data; | |
2040 | struct drm_mode_object *obj; | |
2041 | struct drm_plane *plane; | |
2042 | uint32_t __user *format_ptr; | |
2043 | int ret = 0; | |
2044 | ||
2045 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2046 | return -EINVAL; | |
2047 | ||
84849903 | 2048 | drm_modeset_lock_all(dev); |
8cf5c917 JB |
2049 | obj = drm_mode_object_find(dev, plane_resp->plane_id, |
2050 | DRM_MODE_OBJECT_PLANE); | |
2051 | if (!obj) { | |
2052 | ret = -ENOENT; | |
2053 | goto out; | |
2054 | } | |
2055 | plane = obj_to_plane(obj); | |
2056 | ||
2057 | if (plane->crtc) | |
2058 | plane_resp->crtc_id = plane->crtc->base.id; | |
2059 | else | |
2060 | plane_resp->crtc_id = 0; | |
2061 | ||
2062 | if (plane->fb) | |
2063 | plane_resp->fb_id = plane->fb->base.id; | |
2064 | else | |
2065 | plane_resp->fb_id = 0; | |
2066 | ||
2067 | plane_resp->plane_id = plane->base.id; | |
2068 | plane_resp->possible_crtcs = plane->possible_crtcs; | |
778ad903 | 2069 | plane_resp->gamma_size = 0; |
8cf5c917 JB |
2070 | |
2071 | /* | |
2072 | * This ioctl is called twice, once to determine how much space is | |
2073 | * needed, and the 2nd time to fill it. | |
2074 | */ | |
2075 | if (plane->format_count && | |
2076 | (plane_resp->count_format_types >= plane->format_count)) { | |
81f6c7f8 | 2077 | format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; |
8cf5c917 JB |
2078 | if (copy_to_user(format_ptr, |
2079 | plane->format_types, | |
2080 | sizeof(uint32_t) * plane->format_count)) { | |
2081 | ret = -EFAULT; | |
2082 | goto out; | |
2083 | } | |
2084 | } | |
2085 | plane_resp->count_format_types = plane->format_count; | |
2086 | ||
2087 | out: | |
84849903 | 2088 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
2089 | return ret; |
2090 | } | |
2091 | ||
2092 | /** | |
c8e32cc1 | 2093 | * drm_mode_setplane - configure a plane's configuration |
8cf5c917 JB |
2094 | * @dev: DRM device |
2095 | * @data: ioctl data* | |
065a50ed | 2096 | * @file_priv: DRM file info |
8cf5c917 | 2097 | * |
c8e32cc1 | 2098 | * Set plane configuration, including placement, fb, scaling, and other factors. |
8cf5c917 | 2099 | * Or pass a NULL fb to disable. |
c8e32cc1 DV |
2100 | * |
2101 | * Returns: | |
2102 | * Zero on success, errno on failure. | |
8cf5c917 JB |
2103 | */ |
2104 | int drm_mode_setplane(struct drm_device *dev, void *data, | |
c8e32cc1 | 2105 | struct drm_file *file_priv) |
8cf5c917 JB |
2106 | { |
2107 | struct drm_mode_set_plane *plane_req = data; | |
2108 | struct drm_mode_object *obj; | |
2109 | struct drm_plane *plane; | |
2110 | struct drm_crtc *crtc; | |
6c2a7532 | 2111 | struct drm_framebuffer *fb = NULL, *old_fb = NULL; |
8cf5c917 | 2112 | int ret = 0; |
42ef8789 | 2113 | unsigned int fb_width, fb_height; |
62443be6 | 2114 | int i; |
8cf5c917 JB |
2115 | |
2116 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2117 | return -EINVAL; | |
2118 | ||
8cf5c917 JB |
2119 | /* |
2120 | * First, find the plane, crtc, and fb objects. If not available, | |
2121 | * we don't bother to call the driver. | |
2122 | */ | |
2123 | obj = drm_mode_object_find(dev, plane_req->plane_id, | |
2124 | DRM_MODE_OBJECT_PLANE); | |
2125 | if (!obj) { | |
2126 | DRM_DEBUG_KMS("Unknown plane ID %d\n", | |
2127 | plane_req->plane_id); | |
6c2a7532 | 2128 | return -ENOENT; |
8cf5c917 JB |
2129 | } |
2130 | plane = obj_to_plane(obj); | |
2131 | ||
2132 | /* No fb means shut it down */ | |
2133 | if (!plane_req->fb_id) { | |
6c2a7532 DV |
2134 | drm_modeset_lock_all(dev); |
2135 | old_fb = plane->fb; | |
731cce48 DV |
2136 | ret = plane->funcs->disable_plane(plane); |
2137 | if (!ret) { | |
2138 | plane->crtc = NULL; | |
2139 | plane->fb = NULL; | |
2140 | } else { | |
2141 | old_fb = NULL; | |
2142 | } | |
6c2a7532 | 2143 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
2144 | goto out; |
2145 | } | |
2146 | ||
2147 | obj = drm_mode_object_find(dev, plane_req->crtc_id, | |
2148 | DRM_MODE_OBJECT_CRTC); | |
2149 | if (!obj) { | |
2150 | DRM_DEBUG_KMS("Unknown crtc ID %d\n", | |
2151 | plane_req->crtc_id); | |
2152 | ret = -ENOENT; | |
2153 | goto out; | |
2154 | } | |
2155 | crtc = obj_to_crtc(obj); | |
2156 | ||
786b99ed DV |
2157 | fb = drm_framebuffer_lookup(dev, plane_req->fb_id); |
2158 | if (!fb) { | |
8cf5c917 JB |
2159 | DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", |
2160 | plane_req->fb_id); | |
2161 | ret = -ENOENT; | |
2162 | goto out; | |
2163 | } | |
8cf5c917 | 2164 | |
62443be6 VS |
2165 | /* Check whether this plane supports the fb pixel format. */ |
2166 | for (i = 0; i < plane->format_count; i++) | |
2167 | if (fb->pixel_format == plane->format_types[i]) | |
2168 | break; | |
2169 | if (i == plane->format_count) { | |
6ba6d03e VS |
2170 | DRM_DEBUG_KMS("Invalid pixel format %s\n", |
2171 | drm_get_format_name(fb->pixel_format)); | |
62443be6 VS |
2172 | ret = -EINVAL; |
2173 | goto out; | |
2174 | } | |
2175 | ||
42ef8789 VS |
2176 | fb_width = fb->width << 16; |
2177 | fb_height = fb->height << 16; | |
2178 | ||
2179 | /* Make sure source coordinates are inside the fb. */ | |
2180 | if (plane_req->src_w > fb_width || | |
2181 | plane_req->src_x > fb_width - plane_req->src_w || | |
2182 | plane_req->src_h > fb_height || | |
2183 | plane_req->src_y > fb_height - plane_req->src_h) { | |
2184 | DRM_DEBUG_KMS("Invalid source coordinates " | |
2185 | "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", | |
2186 | plane_req->src_w >> 16, | |
2187 | ((plane_req->src_w & 0xffff) * 15625) >> 10, | |
2188 | plane_req->src_h >> 16, | |
2189 | ((plane_req->src_h & 0xffff) * 15625) >> 10, | |
2190 | plane_req->src_x >> 16, | |
2191 | ((plane_req->src_x & 0xffff) * 15625) >> 10, | |
2192 | plane_req->src_y >> 16, | |
2193 | ((plane_req->src_y & 0xffff) * 15625) >> 10); | |
2194 | ret = -ENOSPC; | |
2195 | goto out; | |
2196 | } | |
2197 | ||
687a0400 VS |
2198 | /* Give drivers some help against integer overflows */ |
2199 | if (plane_req->crtc_w > INT_MAX || | |
2200 | plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w || | |
2201 | plane_req->crtc_h > INT_MAX || | |
2202 | plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) { | |
2203 | DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", | |
2204 | plane_req->crtc_w, plane_req->crtc_h, | |
2205 | plane_req->crtc_x, plane_req->crtc_y); | |
2206 | ret = -ERANGE; | |
2207 | goto out; | |
2208 | } | |
2209 | ||
6c2a7532 | 2210 | drm_modeset_lock_all(dev); |
0fe27f06 | 2211 | old_fb = plane->fb; |
8cf5c917 JB |
2212 | ret = plane->funcs->update_plane(plane, crtc, fb, |
2213 | plane_req->crtc_x, plane_req->crtc_y, | |
2214 | plane_req->crtc_w, plane_req->crtc_h, | |
2215 | plane_req->src_x, plane_req->src_y, | |
2216 | plane_req->src_w, plane_req->src_h); | |
2217 | if (!ret) { | |
2218 | plane->crtc = crtc; | |
2219 | plane->fb = fb; | |
35f8badc | 2220 | fb = NULL; |
0fe27f06 DV |
2221 | } else { |
2222 | old_fb = NULL; | |
8cf5c917 | 2223 | } |
6c2a7532 | 2224 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
2225 | |
2226 | out: | |
6c2a7532 DV |
2227 | if (fb) |
2228 | drm_framebuffer_unreference(fb); | |
2229 | if (old_fb) | |
2230 | drm_framebuffer_unreference(old_fb); | |
8cf5c917 JB |
2231 | |
2232 | return ret; | |
2233 | } | |
2234 | ||
2d13b679 DV |
2235 | /** |
2236 | * drm_mode_set_config_internal - helper to call ->set_config | |
2237 | * @set: modeset config to set | |
2238 | * | |
2239 | * This is a little helper to wrap internal calls to the ->set_config driver | |
2240 | * interface. The only thing it adds is correct refcounting dance. | |
c8e32cc1 DV |
2241 | * |
2242 | * Returns: | |
2243 | * Zero on success, errno on failure. | |
2d13b679 DV |
2244 | */ |
2245 | int drm_mode_set_config_internal(struct drm_mode_set *set) | |
2246 | { | |
2247 | struct drm_crtc *crtc = set->crtc; | |
5cef29aa DV |
2248 | struct drm_framebuffer *fb; |
2249 | struct drm_crtc *tmp; | |
b0d12325 DV |
2250 | int ret; |
2251 | ||
5cef29aa DV |
2252 | /* |
2253 | * NOTE: ->set_config can also disable other crtcs (if we steal all | |
2254 | * connectors from it), hence we need to refcount the fbs across all | |
2255 | * crtcs. Atomic modeset will have saner semantics ... | |
2256 | */ | |
2257 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) | |
f4510a27 | 2258 | tmp->old_fb = tmp->primary->fb; |
5cef29aa | 2259 | |
b0d12325 | 2260 | fb = set->fb; |
2d13b679 | 2261 | |
b0d12325 DV |
2262 | ret = crtc->funcs->set_config(set); |
2263 | if (ret == 0) { | |
e13161af | 2264 | crtc->primary->crtc = crtc; |
0fe27f06 | 2265 | crtc->primary->fb = fb; |
5cef29aa | 2266 | } |
cc85e121 | 2267 | |
5cef29aa | 2268 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) { |
f4510a27 MR |
2269 | if (tmp->primary->fb) |
2270 | drm_framebuffer_reference(tmp->primary->fb); | |
5cef29aa DV |
2271 | if (tmp->old_fb) |
2272 | drm_framebuffer_unreference(tmp->old_fb); | |
b0d12325 DV |
2273 | } |
2274 | ||
2275 | return ret; | |
2d13b679 DV |
2276 | } |
2277 | EXPORT_SYMBOL(drm_mode_set_config_internal); | |
2278 | ||
af93629d MR |
2279 | /** |
2280 | * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the | |
2281 | * CRTC viewport | |
2282 | * @crtc: CRTC that framebuffer will be displayed on | |
2283 | * @x: x panning | |
2284 | * @y: y panning | |
2285 | * @mode: mode that framebuffer will be displayed under | |
2286 | * @fb: framebuffer to check size of | |
c11e9283 | 2287 | */ |
af93629d MR |
2288 | int drm_crtc_check_viewport(const struct drm_crtc *crtc, |
2289 | int x, int y, | |
2290 | const struct drm_display_mode *mode, | |
2291 | const struct drm_framebuffer *fb) | |
c11e9283 DL |
2292 | |
2293 | { | |
2294 | int hdisplay, vdisplay; | |
2295 | ||
2296 | hdisplay = mode->hdisplay; | |
2297 | vdisplay = mode->vdisplay; | |
2298 | ||
a0c1bbb0 DL |
2299 | if (drm_mode_is_stereo(mode)) { |
2300 | struct drm_display_mode adjusted = *mode; | |
2301 | ||
2302 | drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE); | |
2303 | hdisplay = adjusted.crtc_hdisplay; | |
2304 | vdisplay = adjusted.crtc_vdisplay; | |
2305 | } | |
2306 | ||
c11e9283 DL |
2307 | if (crtc->invert_dimensions) |
2308 | swap(hdisplay, vdisplay); | |
2309 | ||
2310 | if (hdisplay > fb->width || | |
2311 | vdisplay > fb->height || | |
2312 | x > fb->width - hdisplay || | |
2313 | y > fb->height - vdisplay) { | |
2314 | DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n", | |
2315 | fb->width, fb->height, hdisplay, vdisplay, x, y, | |
2316 | crtc->invert_dimensions ? " (inverted)" : ""); | |
2317 | return -ENOSPC; | |
2318 | } | |
2319 | ||
2320 | return 0; | |
2321 | } | |
af93629d | 2322 | EXPORT_SYMBOL(drm_crtc_check_viewport); |
c11e9283 | 2323 | |
f453ba04 DA |
2324 | /** |
2325 | * drm_mode_setcrtc - set CRTC configuration | |
065a50ed DV |
2326 | * @dev: drm device for the ioctl |
2327 | * @data: data pointer for the ioctl | |
2328 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2329 | * |
f453ba04 DA |
2330 | * Build a new CRTC configuration based on user request. |
2331 | * | |
2332 | * Called by the user via ioctl. | |
2333 | * | |
c8e32cc1 | 2334 | * Returns: |
f453ba04 DA |
2335 | * Zero on success, errno on failure. |
2336 | */ | |
2337 | int drm_mode_setcrtc(struct drm_device *dev, void *data, | |
2338 | struct drm_file *file_priv) | |
2339 | { | |
2340 | struct drm_mode_config *config = &dev->mode_config; | |
2341 | struct drm_mode_crtc *crtc_req = data; | |
2342 | struct drm_mode_object *obj; | |
6653cc8d | 2343 | struct drm_crtc *crtc; |
f453ba04 DA |
2344 | struct drm_connector **connector_set = NULL, *connector; |
2345 | struct drm_framebuffer *fb = NULL; | |
2346 | struct drm_display_mode *mode = NULL; | |
2347 | struct drm_mode_set set; | |
2348 | uint32_t __user *set_connectors_ptr; | |
4a1b0714 | 2349 | int ret; |
f453ba04 DA |
2350 | int i; |
2351 | ||
fb3b06c8 DA |
2352 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2353 | return -EINVAL; | |
2354 | ||
1d97e915 VS |
2355 | /* For some reason crtc x/y offsets are signed internally. */ |
2356 | if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX) | |
2357 | return -ERANGE; | |
2358 | ||
84849903 | 2359 | drm_modeset_lock_all(dev); |
f453ba04 DA |
2360 | obj = drm_mode_object_find(dev, crtc_req->crtc_id, |
2361 | DRM_MODE_OBJECT_CRTC); | |
2362 | if (!obj) { | |
58367ed6 | 2363 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); |
f27657f2 | 2364 | ret = -ENOENT; |
f453ba04 DA |
2365 | goto out; |
2366 | } | |
2367 | crtc = obj_to_crtc(obj); | |
9440106b | 2368 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
f453ba04 DA |
2369 | |
2370 | if (crtc_req->mode_valid) { | |
2371 | /* If we have a mode we need a framebuffer. */ | |
2372 | /* If we pass -1, set the mode with the currently bound fb */ | |
2373 | if (crtc_req->fb_id == -1) { | |
f4510a27 | 2374 | if (!crtc->primary->fb) { |
6653cc8d VS |
2375 | DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); |
2376 | ret = -EINVAL; | |
2377 | goto out; | |
f453ba04 | 2378 | } |
f4510a27 | 2379 | fb = crtc->primary->fb; |
b0d12325 DV |
2380 | /* Make refcounting symmetric with the lookup path. */ |
2381 | drm_framebuffer_reference(fb); | |
f453ba04 | 2382 | } else { |
786b99ed DV |
2383 | fb = drm_framebuffer_lookup(dev, crtc_req->fb_id); |
2384 | if (!fb) { | |
58367ed6 ZY |
2385 | DRM_DEBUG_KMS("Unknown FB ID%d\n", |
2386 | crtc_req->fb_id); | |
37c4e705 | 2387 | ret = -ENOENT; |
f453ba04 DA |
2388 | goto out; |
2389 | } | |
f453ba04 DA |
2390 | } |
2391 | ||
2392 | mode = drm_mode_create(dev); | |
ee34ab5b VS |
2393 | if (!mode) { |
2394 | ret = -ENOMEM; | |
2395 | goto out; | |
2396 | } | |
2397 | ||
90367bf6 VS |
2398 | ret = drm_crtc_convert_umode(mode, &crtc_req->mode); |
2399 | if (ret) { | |
2400 | DRM_DEBUG_KMS("Invalid mode\n"); | |
2401 | goto out; | |
2402 | } | |
2403 | ||
f453ba04 | 2404 | drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); |
5f61bb42 | 2405 | |
c11e9283 DL |
2406 | ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y, |
2407 | mode, fb); | |
2408 | if (ret) | |
5f61bb42 | 2409 | goto out; |
c11e9283 | 2410 | |
f453ba04 DA |
2411 | } |
2412 | ||
2413 | if (crtc_req->count_connectors == 0 && mode) { | |
58367ed6 | 2414 | DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); |
f453ba04 DA |
2415 | ret = -EINVAL; |
2416 | goto out; | |
2417 | } | |
2418 | ||
7781de74 | 2419 | if (crtc_req->count_connectors > 0 && (!mode || !fb)) { |
58367ed6 | 2420 | DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", |
f453ba04 DA |
2421 | crtc_req->count_connectors); |
2422 | ret = -EINVAL; | |
2423 | goto out; | |
2424 | } | |
2425 | ||
2426 | if (crtc_req->count_connectors > 0) { | |
2427 | u32 out_id; | |
2428 | ||
2429 | /* Avoid unbounded kernel memory allocation */ | |
2430 | if (crtc_req->count_connectors > config->num_connector) { | |
2431 | ret = -EINVAL; | |
2432 | goto out; | |
2433 | } | |
2434 | ||
2435 | connector_set = kmalloc(crtc_req->count_connectors * | |
2436 | sizeof(struct drm_connector *), | |
2437 | GFP_KERNEL); | |
2438 | if (!connector_set) { | |
2439 | ret = -ENOMEM; | |
2440 | goto out; | |
2441 | } | |
2442 | ||
2443 | for (i = 0; i < crtc_req->count_connectors; i++) { | |
81f6c7f8 | 2444 | set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; |
f453ba04 DA |
2445 | if (get_user(out_id, &set_connectors_ptr[i])) { |
2446 | ret = -EFAULT; | |
2447 | goto out; | |
2448 | } | |
2449 | ||
2450 | obj = drm_mode_object_find(dev, out_id, | |
2451 | DRM_MODE_OBJECT_CONNECTOR); | |
2452 | if (!obj) { | |
58367ed6 ZY |
2453 | DRM_DEBUG_KMS("Connector id %d unknown\n", |
2454 | out_id); | |
f27657f2 | 2455 | ret = -ENOENT; |
f453ba04 DA |
2456 | goto out; |
2457 | } | |
2458 | connector = obj_to_connector(obj); | |
9440106b JG |
2459 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
2460 | connector->base.id, | |
25933820 | 2461 | connector->name); |
f453ba04 DA |
2462 | |
2463 | connector_set[i] = connector; | |
2464 | } | |
2465 | } | |
2466 | ||
2467 | set.crtc = crtc; | |
2468 | set.x = crtc_req->x; | |
2469 | set.y = crtc_req->y; | |
2470 | set.mode = mode; | |
2471 | set.connectors = connector_set; | |
2472 | set.num_connectors = crtc_req->count_connectors; | |
5ef5f72f | 2473 | set.fb = fb; |
2d13b679 | 2474 | ret = drm_mode_set_config_internal(&set); |
f453ba04 DA |
2475 | |
2476 | out: | |
b0d12325 DV |
2477 | if (fb) |
2478 | drm_framebuffer_unreference(fb); | |
2479 | ||
f453ba04 | 2480 | kfree(connector_set); |
ee34ab5b | 2481 | drm_mode_destroy(dev, mode); |
84849903 | 2482 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
2483 | return ret; |
2484 | } | |
2485 | ||
4c813d4d DA |
2486 | static int drm_mode_cursor_common(struct drm_device *dev, |
2487 | struct drm_mode_cursor2 *req, | |
2488 | struct drm_file *file_priv) | |
f453ba04 | 2489 | { |
f453ba04 DA |
2490 | struct drm_mode_object *obj; |
2491 | struct drm_crtc *crtc; | |
2492 | int ret = 0; | |
2493 | ||
fb3b06c8 DA |
2494 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2495 | return -EINVAL; | |
2496 | ||
7c4eaca4 | 2497 | if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) |
f453ba04 | 2498 | return -EINVAL; |
f453ba04 | 2499 | |
e0c8463a | 2500 | obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC); |
f453ba04 | 2501 | if (!obj) { |
58367ed6 | 2502 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); |
f27657f2 | 2503 | return -ENOENT; |
f453ba04 DA |
2504 | } |
2505 | crtc = obj_to_crtc(obj); | |
2506 | ||
dac35663 | 2507 | mutex_lock(&crtc->mutex); |
f453ba04 | 2508 | if (req->flags & DRM_MODE_CURSOR_BO) { |
4c813d4d | 2509 | if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) { |
f453ba04 DA |
2510 | ret = -ENXIO; |
2511 | goto out; | |
2512 | } | |
2513 | /* Turns off the cursor if handle is 0 */ | |
4c813d4d DA |
2514 | if (crtc->funcs->cursor_set2) |
2515 | ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle, | |
2516 | req->width, req->height, req->hot_x, req->hot_y); | |
2517 | else | |
2518 | ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, | |
2519 | req->width, req->height); | |
f453ba04 DA |
2520 | } |
2521 | ||
2522 | if (req->flags & DRM_MODE_CURSOR_MOVE) { | |
2523 | if (crtc->funcs->cursor_move) { | |
2524 | ret = crtc->funcs->cursor_move(crtc, req->x, req->y); | |
2525 | } else { | |
f453ba04 DA |
2526 | ret = -EFAULT; |
2527 | goto out; | |
2528 | } | |
2529 | } | |
2530 | out: | |
dac35663 DV |
2531 | mutex_unlock(&crtc->mutex); |
2532 | ||
f453ba04 | 2533 | return ret; |
4c813d4d DA |
2534 | |
2535 | } | |
c8e32cc1 DV |
2536 | |
2537 | ||
2538 | /** | |
2539 | * drm_mode_cursor_ioctl - set CRTC's cursor configuration | |
2540 | * @dev: drm device for the ioctl | |
2541 | * @data: data pointer for the ioctl | |
2542 | * @file_priv: drm file for the ioctl call | |
2543 | * | |
2544 | * Set the cursor configuration based on user request. | |
2545 | * | |
2546 | * Called by the user via ioctl. | |
2547 | * | |
2548 | * Returns: | |
2549 | * Zero on success, errno on failure. | |
2550 | */ | |
4c813d4d | 2551 | int drm_mode_cursor_ioctl(struct drm_device *dev, |
c8e32cc1 | 2552 | void *data, struct drm_file *file_priv) |
4c813d4d DA |
2553 | { |
2554 | struct drm_mode_cursor *req = data; | |
2555 | struct drm_mode_cursor2 new_req; | |
2556 | ||
2557 | memcpy(&new_req, req, sizeof(struct drm_mode_cursor)); | |
2558 | new_req.hot_x = new_req.hot_y = 0; | |
2559 | ||
2560 | return drm_mode_cursor_common(dev, &new_req, file_priv); | |
2561 | } | |
2562 | ||
c8e32cc1 DV |
2563 | /** |
2564 | * drm_mode_cursor2_ioctl - set CRTC's cursor configuration | |
2565 | * @dev: drm device for the ioctl | |
2566 | * @data: data pointer for the ioctl | |
2567 | * @file_priv: drm file for the ioctl call | |
2568 | * | |
2569 | * Set the cursor configuration based on user request. This implements the 2nd | |
2570 | * version of the cursor ioctl, which allows userspace to additionally specify | |
2571 | * the hotspot of the pointer. | |
2572 | * | |
2573 | * Called by the user via ioctl. | |
2574 | * | |
2575 | * Returns: | |
2576 | * Zero on success, errno on failure. | |
2577 | */ | |
4c813d4d DA |
2578 | int drm_mode_cursor2_ioctl(struct drm_device *dev, |
2579 | void *data, struct drm_file *file_priv) | |
2580 | { | |
2581 | struct drm_mode_cursor2 *req = data; | |
2582 | return drm_mode_cursor_common(dev, req, file_priv); | |
f453ba04 DA |
2583 | } |
2584 | ||
c8e32cc1 DV |
2585 | /** |
2586 | * drm_mode_legacy_fb_format - compute drm fourcc code from legacy description | |
2587 | * @bpp: bits per pixels | |
2588 | * @depth: bit depth per pixel | |
2589 | * | |
2590 | * Computes a drm fourcc pixel format code for the given @bpp/@depth values. | |
2591 | * Useful in fbdev emulation code, since that deals in those values. | |
2592 | */ | |
308e5bcb JB |
2593 | uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth) |
2594 | { | |
2595 | uint32_t fmt; | |
2596 | ||
2597 | switch (bpp) { | |
2598 | case 8: | |
d84f031b | 2599 | fmt = DRM_FORMAT_C8; |
308e5bcb JB |
2600 | break; |
2601 | case 16: | |
2602 | if (depth == 15) | |
04b3924d | 2603 | fmt = DRM_FORMAT_XRGB1555; |
308e5bcb | 2604 | else |
04b3924d | 2605 | fmt = DRM_FORMAT_RGB565; |
308e5bcb JB |
2606 | break; |
2607 | case 24: | |
04b3924d | 2608 | fmt = DRM_FORMAT_RGB888; |
308e5bcb JB |
2609 | break; |
2610 | case 32: | |
2611 | if (depth == 24) | |
04b3924d | 2612 | fmt = DRM_FORMAT_XRGB8888; |
308e5bcb | 2613 | else if (depth == 30) |
04b3924d | 2614 | fmt = DRM_FORMAT_XRGB2101010; |
308e5bcb | 2615 | else |
04b3924d | 2616 | fmt = DRM_FORMAT_ARGB8888; |
308e5bcb JB |
2617 | break; |
2618 | default: | |
04b3924d VS |
2619 | DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n"); |
2620 | fmt = DRM_FORMAT_XRGB8888; | |
308e5bcb JB |
2621 | break; |
2622 | } | |
2623 | ||
2624 | return fmt; | |
2625 | } | |
2626 | EXPORT_SYMBOL(drm_mode_legacy_fb_format); | |
2627 | ||
f453ba04 DA |
2628 | /** |
2629 | * drm_mode_addfb - add an FB to the graphics configuration | |
065a50ed DV |
2630 | * @dev: drm device for the ioctl |
2631 | * @data: data pointer for the ioctl | |
2632 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2633 | * |
c8e32cc1 DV |
2634 | * Add a new FB to the specified CRTC, given a user request. This is the |
2635 | * original addfb ioclt which only supported RGB formats. | |
f453ba04 DA |
2636 | * |
2637 | * Called by the user via ioctl. | |
2638 | * | |
c8e32cc1 | 2639 | * Returns: |
f453ba04 DA |
2640 | * Zero on success, errno on failure. |
2641 | */ | |
2642 | int drm_mode_addfb(struct drm_device *dev, | |
2643 | void *data, struct drm_file *file_priv) | |
2644 | { | |
308e5bcb JB |
2645 | struct drm_mode_fb_cmd *or = data; |
2646 | struct drm_mode_fb_cmd2 r = {}; | |
2647 | struct drm_mode_config *config = &dev->mode_config; | |
2648 | struct drm_framebuffer *fb; | |
2649 | int ret = 0; | |
2650 | ||
2651 | /* Use new struct with format internally */ | |
2652 | r.fb_id = or->fb_id; | |
2653 | r.width = or->width; | |
2654 | r.height = or->height; | |
2655 | r.pitches[0] = or->pitch; | |
2656 | r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth); | |
2657 | r.handles[0] = or->handle; | |
2658 | ||
2659 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2660 | return -EINVAL; | |
2661 | ||
acb4b992 | 2662 | if ((config->min_width > r.width) || (r.width > config->max_width)) |
308e5bcb | 2663 | return -EINVAL; |
acb4b992 JB |
2664 | |
2665 | if ((config->min_height > r.height) || (r.height > config->max_height)) | |
308e5bcb | 2666 | return -EINVAL; |
308e5bcb | 2667 | |
308e5bcb JB |
2668 | fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r); |
2669 | if (IS_ERR(fb)) { | |
1aa1b11c | 2670 | DRM_DEBUG_KMS("could not create framebuffer\n"); |
4b096ac1 | 2671 | return PTR_ERR(fb); |
308e5bcb JB |
2672 | } |
2673 | ||
4b096ac1 | 2674 | mutex_lock(&file_priv->fbs_lock); |
308e5bcb JB |
2675 | or->fb_id = fb->base.id; |
2676 | list_add(&fb->filp_head, &file_priv->fbs); | |
2677 | DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); | |
4b096ac1 | 2678 | mutex_unlock(&file_priv->fbs_lock); |
4b096ac1 | 2679 | |
308e5bcb JB |
2680 | return ret; |
2681 | } | |
2682 | ||
cff91b62 | 2683 | static int format_check(const struct drm_mode_fb_cmd2 *r) |
935b5977 VS |
2684 | { |
2685 | uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN; | |
2686 | ||
2687 | switch (format) { | |
2688 | case DRM_FORMAT_C8: | |
2689 | case DRM_FORMAT_RGB332: | |
2690 | case DRM_FORMAT_BGR233: | |
2691 | case DRM_FORMAT_XRGB4444: | |
2692 | case DRM_FORMAT_XBGR4444: | |
2693 | case DRM_FORMAT_RGBX4444: | |
2694 | case DRM_FORMAT_BGRX4444: | |
2695 | case DRM_FORMAT_ARGB4444: | |
2696 | case DRM_FORMAT_ABGR4444: | |
2697 | case DRM_FORMAT_RGBA4444: | |
2698 | case DRM_FORMAT_BGRA4444: | |
2699 | case DRM_FORMAT_XRGB1555: | |
2700 | case DRM_FORMAT_XBGR1555: | |
2701 | case DRM_FORMAT_RGBX5551: | |
2702 | case DRM_FORMAT_BGRX5551: | |
2703 | case DRM_FORMAT_ARGB1555: | |
2704 | case DRM_FORMAT_ABGR1555: | |
2705 | case DRM_FORMAT_RGBA5551: | |
2706 | case DRM_FORMAT_BGRA5551: | |
2707 | case DRM_FORMAT_RGB565: | |
2708 | case DRM_FORMAT_BGR565: | |
2709 | case DRM_FORMAT_RGB888: | |
2710 | case DRM_FORMAT_BGR888: | |
2711 | case DRM_FORMAT_XRGB8888: | |
2712 | case DRM_FORMAT_XBGR8888: | |
2713 | case DRM_FORMAT_RGBX8888: | |
2714 | case DRM_FORMAT_BGRX8888: | |
2715 | case DRM_FORMAT_ARGB8888: | |
2716 | case DRM_FORMAT_ABGR8888: | |
2717 | case DRM_FORMAT_RGBA8888: | |
2718 | case DRM_FORMAT_BGRA8888: | |
2719 | case DRM_FORMAT_XRGB2101010: | |
2720 | case DRM_FORMAT_XBGR2101010: | |
2721 | case DRM_FORMAT_RGBX1010102: | |
2722 | case DRM_FORMAT_BGRX1010102: | |
2723 | case DRM_FORMAT_ARGB2101010: | |
2724 | case DRM_FORMAT_ABGR2101010: | |
2725 | case DRM_FORMAT_RGBA1010102: | |
2726 | case DRM_FORMAT_BGRA1010102: | |
2727 | case DRM_FORMAT_YUYV: | |
2728 | case DRM_FORMAT_YVYU: | |
2729 | case DRM_FORMAT_UYVY: | |
2730 | case DRM_FORMAT_VYUY: | |
2731 | case DRM_FORMAT_AYUV: | |
2732 | case DRM_FORMAT_NV12: | |
2733 | case DRM_FORMAT_NV21: | |
2734 | case DRM_FORMAT_NV16: | |
2735 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
2736 | case DRM_FORMAT_NV24: |
2737 | case DRM_FORMAT_NV42: | |
935b5977 VS |
2738 | case DRM_FORMAT_YUV410: |
2739 | case DRM_FORMAT_YVU410: | |
2740 | case DRM_FORMAT_YUV411: | |
2741 | case DRM_FORMAT_YVU411: | |
2742 | case DRM_FORMAT_YUV420: | |
2743 | case DRM_FORMAT_YVU420: | |
2744 | case DRM_FORMAT_YUV422: | |
2745 | case DRM_FORMAT_YVU422: | |
2746 | case DRM_FORMAT_YUV444: | |
2747 | case DRM_FORMAT_YVU444: | |
2748 | return 0; | |
2749 | default: | |
23c453a4 VS |
2750 | DRM_DEBUG_KMS("invalid pixel format %s\n", |
2751 | drm_get_format_name(r->pixel_format)); | |
935b5977 VS |
2752 | return -EINVAL; |
2753 | } | |
2754 | } | |
2755 | ||
cff91b62 | 2756 | static int framebuffer_check(const struct drm_mode_fb_cmd2 *r) |
d1b45d5f VS |
2757 | { |
2758 | int ret, hsub, vsub, num_planes, i; | |
2759 | ||
2760 | ret = format_check(r); | |
2761 | if (ret) { | |
6ba6d03e VS |
2762 | DRM_DEBUG_KMS("bad framebuffer format %s\n", |
2763 | drm_get_format_name(r->pixel_format)); | |
d1b45d5f VS |
2764 | return ret; |
2765 | } | |
2766 | ||
2767 | hsub = drm_format_horz_chroma_subsampling(r->pixel_format); | |
2768 | vsub = drm_format_vert_chroma_subsampling(r->pixel_format); | |
2769 | num_planes = drm_format_num_planes(r->pixel_format); | |
2770 | ||
2771 | if (r->width == 0 || r->width % hsub) { | |
1aa1b11c | 2772 | DRM_DEBUG_KMS("bad framebuffer width %u\n", r->height); |
d1b45d5f VS |
2773 | return -EINVAL; |
2774 | } | |
2775 | ||
2776 | if (r->height == 0 || r->height % vsub) { | |
1aa1b11c | 2777 | DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height); |
d1b45d5f VS |
2778 | return -EINVAL; |
2779 | } | |
2780 | ||
2781 | for (i = 0; i < num_planes; i++) { | |
2782 | unsigned int width = r->width / (i != 0 ? hsub : 1); | |
b180b5d1 VS |
2783 | unsigned int height = r->height / (i != 0 ? vsub : 1); |
2784 | unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i); | |
d1b45d5f VS |
2785 | |
2786 | if (!r->handles[i]) { | |
1aa1b11c | 2787 | DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i); |
d1b45d5f VS |
2788 | return -EINVAL; |
2789 | } | |
2790 | ||
b180b5d1 VS |
2791 | if ((uint64_t) width * cpp > UINT_MAX) |
2792 | return -ERANGE; | |
2793 | ||
2794 | if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX) | |
2795 | return -ERANGE; | |
2796 | ||
2797 | if (r->pitches[i] < width * cpp) { | |
1aa1b11c | 2798 | DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i); |
d1b45d5f VS |
2799 | return -EINVAL; |
2800 | } | |
2801 | } | |
2802 | ||
2803 | return 0; | |
2804 | } | |
2805 | ||
308e5bcb JB |
2806 | /** |
2807 | * drm_mode_addfb2 - add an FB to the graphics configuration | |
065a50ed DV |
2808 | * @dev: drm device for the ioctl |
2809 | * @data: data pointer for the ioctl | |
2810 | * @file_priv: drm file for the ioctl call | |
308e5bcb | 2811 | * |
c8e32cc1 DV |
2812 | * Add a new FB to the specified CRTC, given a user request with format. This is |
2813 | * the 2nd version of the addfb ioctl, which supports multi-planar framebuffers | |
2814 | * and uses fourcc codes as pixel format specifiers. | |
308e5bcb JB |
2815 | * |
2816 | * Called by the user via ioctl. | |
2817 | * | |
c8e32cc1 | 2818 | * Returns: |
308e5bcb JB |
2819 | * Zero on success, errno on failure. |
2820 | */ | |
2821 | int drm_mode_addfb2(struct drm_device *dev, | |
2822 | void *data, struct drm_file *file_priv) | |
2823 | { | |
2824 | struct drm_mode_fb_cmd2 *r = data; | |
f453ba04 DA |
2825 | struct drm_mode_config *config = &dev->mode_config; |
2826 | struct drm_framebuffer *fb; | |
4a1b0714 | 2827 | int ret; |
f453ba04 | 2828 | |
fb3b06c8 DA |
2829 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2830 | return -EINVAL; | |
2831 | ||
e3cc3520 VS |
2832 | if (r->flags & ~DRM_MODE_FB_INTERLACED) { |
2833 | DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags); | |
2834 | return -EINVAL; | |
2835 | } | |
2836 | ||
f453ba04 | 2837 | if ((config->min_width > r->width) || (r->width > config->max_width)) { |
1aa1b11c | 2838 | DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n", |
8cf5c917 | 2839 | r->width, config->min_width, config->max_width); |
f453ba04 DA |
2840 | return -EINVAL; |
2841 | } | |
2842 | if ((config->min_height > r->height) || (r->height > config->max_height)) { | |
1aa1b11c | 2843 | DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n", |
8cf5c917 | 2844 | r->height, config->min_height, config->max_height); |
f453ba04 DA |
2845 | return -EINVAL; |
2846 | } | |
2847 | ||
d1b45d5f VS |
2848 | ret = framebuffer_check(r); |
2849 | if (ret) | |
935b5977 | 2850 | return ret; |
935b5977 | 2851 | |
f453ba04 | 2852 | fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); |
cce13ff7 | 2853 | if (IS_ERR(fb)) { |
1aa1b11c | 2854 | DRM_DEBUG_KMS("could not create framebuffer\n"); |
4b096ac1 | 2855 | return PTR_ERR(fb); |
f453ba04 DA |
2856 | } |
2857 | ||
4b096ac1 | 2858 | mutex_lock(&file_priv->fbs_lock); |
e0c8463a | 2859 | r->fb_id = fb->base.id; |
f453ba04 | 2860 | list_add(&fb->filp_head, &file_priv->fbs); |
9440106b | 2861 | DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); |
4b096ac1 | 2862 | mutex_unlock(&file_priv->fbs_lock); |
f453ba04 | 2863 | |
4b096ac1 | 2864 | |
f453ba04 DA |
2865 | return ret; |
2866 | } | |
2867 | ||
2868 | /** | |
2869 | * drm_mode_rmfb - remove an FB from the configuration | |
065a50ed DV |
2870 | * @dev: drm device for the ioctl |
2871 | * @data: data pointer for the ioctl | |
2872 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2873 | * |
f453ba04 DA |
2874 | * Remove the FB specified by the user. |
2875 | * | |
2876 | * Called by the user via ioctl. | |
2877 | * | |
c8e32cc1 | 2878 | * Returns: |
f453ba04 DA |
2879 | * Zero on success, errno on failure. |
2880 | */ | |
2881 | int drm_mode_rmfb(struct drm_device *dev, | |
2882 | void *data, struct drm_file *file_priv) | |
2883 | { | |
f453ba04 DA |
2884 | struct drm_framebuffer *fb = NULL; |
2885 | struct drm_framebuffer *fbl = NULL; | |
2886 | uint32_t *id = data; | |
f453ba04 DA |
2887 | int found = 0; |
2888 | ||
fb3b06c8 DA |
2889 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2890 | return -EINVAL; | |
2891 | ||
4b096ac1 | 2892 | mutex_lock(&file_priv->fbs_lock); |
2b677e8c DV |
2893 | mutex_lock(&dev->mode_config.fb_lock); |
2894 | fb = __drm_framebuffer_lookup(dev, *id); | |
2895 | if (!fb) | |
2896 | goto fail_lookup; | |
2897 | ||
f453ba04 DA |
2898 | list_for_each_entry(fbl, &file_priv->fbs, filp_head) |
2899 | if (fb == fbl) | |
2900 | found = 1; | |
2b677e8c DV |
2901 | if (!found) |
2902 | goto fail_lookup; | |
2903 | ||
2904 | /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ | |
2905 | __drm_framebuffer_unregister(dev, fb); | |
f453ba04 | 2906 | |
4b096ac1 | 2907 | list_del_init(&fb->filp_head); |
2b677e8c | 2908 | mutex_unlock(&dev->mode_config.fb_lock); |
4b096ac1 | 2909 | mutex_unlock(&file_priv->fbs_lock); |
f453ba04 | 2910 | |
4b096ac1 | 2911 | drm_framebuffer_remove(fb); |
4b096ac1 | 2912 | |
2b677e8c DV |
2913 | return 0; |
2914 | ||
2915 | fail_lookup: | |
2916 | mutex_unlock(&dev->mode_config.fb_lock); | |
2917 | mutex_unlock(&file_priv->fbs_lock); | |
2918 | ||
37c4e705 | 2919 | return -ENOENT; |
f453ba04 DA |
2920 | } |
2921 | ||
2922 | /** | |
2923 | * drm_mode_getfb - get FB info | |
065a50ed DV |
2924 | * @dev: drm device for the ioctl |
2925 | * @data: data pointer for the ioctl | |
2926 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2927 | * |
f453ba04 DA |
2928 | * Lookup the FB given its ID and return info about it. |
2929 | * | |
2930 | * Called by the user via ioctl. | |
2931 | * | |
c8e32cc1 | 2932 | * Returns: |
f453ba04 DA |
2933 | * Zero on success, errno on failure. |
2934 | */ | |
2935 | int drm_mode_getfb(struct drm_device *dev, | |
2936 | void *data, struct drm_file *file_priv) | |
2937 | { | |
2938 | struct drm_mode_fb_cmd *r = data; | |
f453ba04 | 2939 | struct drm_framebuffer *fb; |
58c0dca1 | 2940 | int ret; |
f453ba04 | 2941 | |
fb3b06c8 DA |
2942 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2943 | return -EINVAL; | |
2944 | ||
786b99ed | 2945 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
58c0dca1 | 2946 | if (!fb) |
37c4e705 | 2947 | return -ENOENT; |
f453ba04 DA |
2948 | |
2949 | r->height = fb->height; | |
2950 | r->width = fb->width; | |
2951 | r->depth = fb->depth; | |
2952 | r->bpp = fb->bits_per_pixel; | |
01f2c773 | 2953 | r->pitch = fb->pitches[0]; |
101b96f3 | 2954 | if (fb->funcs->create_handle) { |
09f308f7 | 2955 | if (file_priv->is_master || capable(CAP_SYS_ADMIN) || |
43683057 | 2956 | drm_is_control_client(file_priv)) { |
101b96f3 DH |
2957 | ret = fb->funcs->create_handle(fb, file_priv, |
2958 | &r->handle); | |
2959 | } else { | |
2960 | /* GET_FB() is an unprivileged ioctl so we must not | |
2961 | * return a buffer-handle to non-master processes! For | |
2962 | * backwards-compatibility reasons, we cannot make | |
2963 | * GET_FB() privileged, so just return an invalid handle | |
2964 | * for non-masters. */ | |
2965 | r->handle = 0; | |
2966 | ret = 0; | |
2967 | } | |
2968 | } else { | |
af26ef3b | 2969 | ret = -ENODEV; |
101b96f3 | 2970 | } |
f453ba04 | 2971 | |
58c0dca1 DV |
2972 | drm_framebuffer_unreference(fb); |
2973 | ||
f453ba04 DA |
2974 | return ret; |
2975 | } | |
2976 | ||
c8e32cc1 DV |
2977 | /** |
2978 | * drm_mode_dirtyfb_ioctl - flush frontbuffer rendering on an FB | |
2979 | * @dev: drm device for the ioctl | |
2980 | * @data: data pointer for the ioctl | |
2981 | * @file_priv: drm file for the ioctl call | |
2982 | * | |
2983 | * Lookup the FB and flush out the damaged area supplied by userspace as a clip | |
2984 | * rectangle list. Generic userspace which does frontbuffer rendering must call | |
2985 | * this ioctl to flush out the changes on manual-update display outputs, e.g. | |
2986 | * usb display-link, mipi manual update panels or edp panel self refresh modes. | |
2987 | * | |
2988 | * Modesetting drivers which always update the frontbuffer do not need to | |
2989 | * implement the corresponding ->dirty framebuffer callback. | |
2990 | * | |
2991 | * Called by the user via ioctl. | |
2992 | * | |
2993 | * Returns: | |
2994 | * Zero on success, errno on failure. | |
2995 | */ | |
884840aa JB |
2996 | int drm_mode_dirtyfb_ioctl(struct drm_device *dev, |
2997 | void *data, struct drm_file *file_priv) | |
2998 | { | |
2999 | struct drm_clip_rect __user *clips_ptr; | |
3000 | struct drm_clip_rect *clips = NULL; | |
3001 | struct drm_mode_fb_dirty_cmd *r = data; | |
884840aa JB |
3002 | struct drm_framebuffer *fb; |
3003 | unsigned flags; | |
3004 | int num_clips; | |
4a1b0714 | 3005 | int ret; |
884840aa | 3006 | |
fb3b06c8 DA |
3007 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3008 | return -EINVAL; | |
3009 | ||
786b99ed | 3010 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
4ccf097f | 3011 | if (!fb) |
37c4e705 | 3012 | return -ENOENT; |
884840aa JB |
3013 | |
3014 | num_clips = r->num_clips; | |
81f6c7f8 | 3015 | clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; |
884840aa JB |
3016 | |
3017 | if (!num_clips != !clips_ptr) { | |
3018 | ret = -EINVAL; | |
3019 | goto out_err1; | |
3020 | } | |
3021 | ||
3022 | flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags; | |
3023 | ||
3024 | /* If userspace annotates copy, clips must come in pairs */ | |
3025 | if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) { | |
3026 | ret = -EINVAL; | |
3027 | goto out_err1; | |
3028 | } | |
3029 | ||
3030 | if (num_clips && clips_ptr) { | |
a5cd3351 XW |
3031 | if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) { |
3032 | ret = -EINVAL; | |
3033 | goto out_err1; | |
3034 | } | |
884840aa JB |
3035 | clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL); |
3036 | if (!clips) { | |
3037 | ret = -ENOMEM; | |
3038 | goto out_err1; | |
3039 | } | |
3040 | ||
3041 | ret = copy_from_user(clips, clips_ptr, | |
3042 | num_clips * sizeof(*clips)); | |
e902a358 DC |
3043 | if (ret) { |
3044 | ret = -EFAULT; | |
884840aa | 3045 | goto out_err2; |
e902a358 | 3046 | } |
884840aa JB |
3047 | } |
3048 | ||
3049 | if (fb->funcs->dirty) { | |
02b00162 TH |
3050 | ret = fb->funcs->dirty(fb, file_priv, flags, r->color, |
3051 | clips, num_clips); | |
884840aa JB |
3052 | } else { |
3053 | ret = -ENOSYS; | |
884840aa JB |
3054 | } |
3055 | ||
3056 | out_err2: | |
3057 | kfree(clips); | |
3058 | out_err1: | |
4ccf097f DV |
3059 | drm_framebuffer_unreference(fb); |
3060 | ||
884840aa JB |
3061 | return ret; |
3062 | } | |
3063 | ||
3064 | ||
f453ba04 DA |
3065 | /** |
3066 | * drm_fb_release - remove and free the FBs on this file | |
065a50ed | 3067 | * @priv: drm file for the ioctl |
f453ba04 | 3068 | * |
f453ba04 DA |
3069 | * Destroy all the FBs associated with @filp. |
3070 | * | |
3071 | * Called by the user via ioctl. | |
3072 | * | |
c8e32cc1 | 3073 | * Returns: |
f453ba04 DA |
3074 | * Zero on success, errno on failure. |
3075 | */ | |
ea39f835 | 3076 | void drm_fb_release(struct drm_file *priv) |
f453ba04 | 3077 | { |
f453ba04 DA |
3078 | struct drm_device *dev = priv->minor->dev; |
3079 | struct drm_framebuffer *fb, *tfb; | |
3080 | ||
4b096ac1 | 3081 | mutex_lock(&priv->fbs_lock); |
f453ba04 | 3082 | list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { |
2b677e8c DV |
3083 | |
3084 | mutex_lock(&dev->mode_config.fb_lock); | |
3085 | /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ | |
3086 | __drm_framebuffer_unregister(dev, fb); | |
3087 | mutex_unlock(&dev->mode_config.fb_lock); | |
3088 | ||
4b096ac1 | 3089 | list_del_init(&fb->filp_head); |
2b677e8c DV |
3090 | |
3091 | /* This will also drop the fpriv->fbs reference. */ | |
f7eff60e | 3092 | drm_framebuffer_remove(fb); |
f453ba04 | 3093 | } |
4b096ac1 | 3094 | mutex_unlock(&priv->fbs_lock); |
f453ba04 DA |
3095 | } |
3096 | ||
c8e32cc1 DV |
3097 | /** |
3098 | * drm_property_create - create a new property type | |
3099 | * @dev: drm device | |
3100 | * @flags: flags specifying the property type | |
3101 | * @name: name of the property | |
3102 | * @num_values: number of pre-defined values | |
3103 | * | |
3104 | * This creates a new generic drm property which can then be attached to a drm | |
3105 | * object with drm_object_attach_property. The returned property object must be | |
3106 | * freed with drm_property_destroy. | |
3107 | * | |
3108 | * Returns: | |
3109 | * A pointer to the newly created property on success, NULL on failure. | |
3110 | */ | |
f453ba04 DA |
3111 | struct drm_property *drm_property_create(struct drm_device *dev, int flags, |
3112 | const char *name, int num_values) | |
3113 | { | |
3114 | struct drm_property *property = NULL; | |
6bfc56aa | 3115 | int ret; |
f453ba04 DA |
3116 | |
3117 | property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); | |
3118 | if (!property) | |
3119 | return NULL; | |
3120 | ||
3121 | if (num_values) { | |
3122 | property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL); | |
3123 | if (!property->values) | |
3124 | goto fail; | |
3125 | } | |
3126 | ||
6bfc56aa VS |
3127 | ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); |
3128 | if (ret) | |
3129 | goto fail; | |
3130 | ||
f453ba04 DA |
3131 | property->flags = flags; |
3132 | property->num_values = num_values; | |
3133 | INIT_LIST_HEAD(&property->enum_blob_list); | |
3134 | ||
471dd2ef | 3135 | if (name) { |
f453ba04 | 3136 | strncpy(property->name, name, DRM_PROP_NAME_LEN); |
471dd2ef VL |
3137 | property->name[DRM_PROP_NAME_LEN-1] = '\0'; |
3138 | } | |
f453ba04 DA |
3139 | |
3140 | list_add_tail(&property->head, &dev->mode_config.property_list); | |
3141 | return property; | |
3142 | fail: | |
6bfc56aa | 3143 | kfree(property->values); |
f453ba04 DA |
3144 | kfree(property); |
3145 | return NULL; | |
3146 | } | |
3147 | EXPORT_SYMBOL(drm_property_create); | |
3148 | ||
c8e32cc1 DV |
3149 | /** |
3150 | * drm_property_create - create a new enumeration property type | |
3151 | * @dev: drm device | |
3152 | * @flags: flags specifying the property type | |
3153 | * @name: name of the property | |
3154 | * @props: enumeration lists with property values | |
3155 | * @num_values: number of pre-defined values | |
3156 | * | |
3157 | * This creates a new generic drm property which can then be attached to a drm | |
3158 | * object with drm_object_attach_property. The returned property object must be | |
3159 | * freed with drm_property_destroy. | |
3160 | * | |
3161 | * Userspace is only allowed to set one of the predefined values for enumeration | |
3162 | * properties. | |
3163 | * | |
3164 | * Returns: | |
3165 | * A pointer to the newly created property on success, NULL on failure. | |
3166 | */ | |
4a67d391 SH |
3167 | struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, |
3168 | const char *name, | |
3169 | const struct drm_prop_enum_list *props, | |
3170 | int num_values) | |
3171 | { | |
3172 | struct drm_property *property; | |
3173 | int i, ret; | |
3174 | ||
3175 | flags |= DRM_MODE_PROP_ENUM; | |
3176 | ||
3177 | property = drm_property_create(dev, flags, name, num_values); | |
3178 | if (!property) | |
3179 | return NULL; | |
3180 | ||
3181 | for (i = 0; i < num_values; i++) { | |
3182 | ret = drm_property_add_enum(property, i, | |
3183 | props[i].type, | |
3184 | props[i].name); | |
3185 | if (ret) { | |
3186 | drm_property_destroy(dev, property); | |
3187 | return NULL; | |
3188 | } | |
3189 | } | |
3190 | ||
3191 | return property; | |
3192 | } | |
3193 | EXPORT_SYMBOL(drm_property_create_enum); | |
3194 | ||
c8e32cc1 DV |
3195 | /** |
3196 | * drm_property_create - create a new bitmask property type | |
3197 | * @dev: drm device | |
3198 | * @flags: flags specifying the property type | |
3199 | * @name: name of the property | |
3200 | * @props: enumeration lists with property bitflags | |
3201 | * @num_values: number of pre-defined values | |
3202 | * | |
3203 | * This creates a new generic drm property which can then be attached to a drm | |
3204 | * object with drm_object_attach_property. The returned property object must be | |
3205 | * freed with drm_property_destroy. | |
3206 | * | |
3207 | * Compared to plain enumeration properties userspace is allowed to set any | |
3208 | * or'ed together combination of the predefined property bitflag values | |
3209 | * | |
3210 | * Returns: | |
3211 | * A pointer to the newly created property on success, NULL on failure. | |
3212 | */ | |
49e27545 RC |
3213 | struct drm_property *drm_property_create_bitmask(struct drm_device *dev, |
3214 | int flags, const char *name, | |
3215 | const struct drm_prop_enum_list *props, | |
3216 | int num_values) | |
3217 | { | |
3218 | struct drm_property *property; | |
3219 | int i, ret; | |
3220 | ||
3221 | flags |= DRM_MODE_PROP_BITMASK; | |
3222 | ||
3223 | property = drm_property_create(dev, flags, name, num_values); | |
3224 | if (!property) | |
3225 | return NULL; | |
3226 | ||
3227 | for (i = 0; i < num_values; i++) { | |
3228 | ret = drm_property_add_enum(property, i, | |
3229 | props[i].type, | |
3230 | props[i].name); | |
3231 | if (ret) { | |
3232 | drm_property_destroy(dev, property); | |
3233 | return NULL; | |
3234 | } | |
3235 | } | |
3236 | ||
3237 | return property; | |
3238 | } | |
3239 | EXPORT_SYMBOL(drm_property_create_bitmask); | |
3240 | ||
c8e32cc1 DV |
3241 | /** |
3242 | * drm_property_create - create a new ranged property type | |
3243 | * @dev: drm device | |
3244 | * @flags: flags specifying the property type | |
3245 | * @name: name of the property | |
3246 | * @min: minimum value of the property | |
3247 | * @max: maximum value of the property | |
3248 | * | |
3249 | * This creates a new generic drm property which can then be attached to a drm | |
3250 | * object with drm_object_attach_property. The returned property object must be | |
3251 | * freed with drm_property_destroy. | |
3252 | * | |
3253 | * Userspace is allowed to set any interger value in the (min, max) range | |
3254 | * inclusive. | |
3255 | * | |
3256 | * Returns: | |
3257 | * A pointer to the newly created property on success, NULL on failure. | |
3258 | */ | |
d9bc3c02 SH |
3259 | struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, |
3260 | const char *name, | |
3261 | uint64_t min, uint64_t max) | |
3262 | { | |
3263 | struct drm_property *property; | |
3264 | ||
3265 | flags |= DRM_MODE_PROP_RANGE; | |
3266 | ||
3267 | property = drm_property_create(dev, flags, name, 2); | |
3268 | if (!property) | |
3269 | return NULL; | |
3270 | ||
3271 | property->values[0] = min; | |
3272 | property->values[1] = max; | |
3273 | ||
3274 | return property; | |
3275 | } | |
3276 | EXPORT_SYMBOL(drm_property_create_range); | |
3277 | ||
c8e32cc1 DV |
3278 | /** |
3279 | * drm_property_add_enum - add a possible value to an enumeration property | |
3280 | * @property: enumeration property to change | |
3281 | * @index: index of the new enumeration | |
3282 | * @value: value of the new enumeration | |
3283 | * @name: symbolic name of the new enumeration | |
3284 | * | |
3285 | * This functions adds enumerations to a property. | |
3286 | * | |
3287 | * It's use is deprecated, drivers should use one of the more specific helpers | |
3288 | * to directly create the property with all enumerations already attached. | |
3289 | * | |
3290 | * Returns: | |
3291 | * Zero on success, error code on failure. | |
3292 | */ | |
f453ba04 DA |
3293 | int drm_property_add_enum(struct drm_property *property, int index, |
3294 | uint64_t value, const char *name) | |
3295 | { | |
3296 | struct drm_property_enum *prop_enum; | |
3297 | ||
49e27545 RC |
3298 | if (!(property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK))) |
3299 | return -EINVAL; | |
3300 | ||
3301 | /* | |
3302 | * Bitmask enum properties have the additional constraint of values | |
3303 | * from 0 to 63 | |
3304 | */ | |
3305 | if ((property->flags & DRM_MODE_PROP_BITMASK) && (value > 63)) | |
f453ba04 DA |
3306 | return -EINVAL; |
3307 | ||
3308 | if (!list_empty(&property->enum_blob_list)) { | |
3309 | list_for_each_entry(prop_enum, &property->enum_blob_list, head) { | |
3310 | if (prop_enum->value == value) { | |
3311 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
3312 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
3313 | return 0; | |
3314 | } | |
3315 | } | |
3316 | } | |
3317 | ||
3318 | prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); | |
3319 | if (!prop_enum) | |
3320 | return -ENOMEM; | |
3321 | ||
3322 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
3323 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
3324 | prop_enum->value = value; | |
3325 | ||
3326 | property->values[index] = value; | |
3327 | list_add_tail(&prop_enum->head, &property->enum_blob_list); | |
3328 | return 0; | |
3329 | } | |
3330 | EXPORT_SYMBOL(drm_property_add_enum); | |
3331 | ||
c8e32cc1 DV |
3332 | /** |
3333 | * drm_property_destroy - destroy a drm property | |
3334 | * @dev: drm device | |
3335 | * @property: property to destry | |
3336 | * | |
3337 | * This function frees a property including any attached resources like | |
3338 | * enumeration values. | |
3339 | */ | |
f453ba04 DA |
3340 | void drm_property_destroy(struct drm_device *dev, struct drm_property *property) |
3341 | { | |
3342 | struct drm_property_enum *prop_enum, *pt; | |
3343 | ||
3344 | list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) { | |
3345 | list_del(&prop_enum->head); | |
3346 | kfree(prop_enum); | |
3347 | } | |
3348 | ||
3349 | if (property->num_values) | |
3350 | kfree(property->values); | |
3351 | drm_mode_object_put(dev, &property->base); | |
3352 | list_del(&property->head); | |
3353 | kfree(property); | |
3354 | } | |
3355 | EXPORT_SYMBOL(drm_property_destroy); | |
3356 | ||
c8e32cc1 DV |
3357 | /** |
3358 | * drm_object_attach_property - attach a property to a modeset object | |
3359 | * @obj: drm modeset object | |
3360 | * @property: property to attach | |
3361 | * @init_val: initial value of the property | |
3362 | * | |
3363 | * This attaches the given property to the modeset object with the given initial | |
3364 | * value. Currently this function cannot fail since the properties are stored in | |
3365 | * a statically sized array. | |
3366 | */ | |
c543188a PZ |
3367 | void drm_object_attach_property(struct drm_mode_object *obj, |
3368 | struct drm_property *property, | |
3369 | uint64_t init_val) | |
3370 | { | |
7f88a9be | 3371 | int count = obj->properties->count; |
c543188a | 3372 | |
7f88a9be PZ |
3373 | if (count == DRM_OBJECT_MAX_PROPERTY) { |
3374 | WARN(1, "Failed to attach object property (type: 0x%x). Please " | |
3375 | "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time " | |
3376 | "you see this message on the same object type.\n", | |
3377 | obj->type); | |
3378 | return; | |
c543188a PZ |
3379 | } |
3380 | ||
7f88a9be PZ |
3381 | obj->properties->ids[count] = property->base.id; |
3382 | obj->properties->values[count] = init_val; | |
3383 | obj->properties->count++; | |
c543188a PZ |
3384 | } |
3385 | EXPORT_SYMBOL(drm_object_attach_property); | |
3386 | ||
c8e32cc1 DV |
3387 | /** |
3388 | * drm_object_property_set_value - set the value of a property | |
3389 | * @obj: drm mode object to set property value for | |
3390 | * @property: property to set | |
3391 | * @val: value the property should be set to | |
3392 | * | |
3393 | * This functions sets a given property on a given object. This function only | |
3394 | * changes the software state of the property, it does not call into the | |
3395 | * driver's ->set_property callback. | |
3396 | * | |
3397 | * Returns: | |
3398 | * Zero on success, error code on failure. | |
3399 | */ | |
c543188a PZ |
3400 | int drm_object_property_set_value(struct drm_mode_object *obj, |
3401 | struct drm_property *property, uint64_t val) | |
3402 | { | |
3403 | int i; | |
3404 | ||
7f88a9be | 3405 | for (i = 0; i < obj->properties->count; i++) { |
c543188a PZ |
3406 | if (obj->properties->ids[i] == property->base.id) { |
3407 | obj->properties->values[i] = val; | |
3408 | return 0; | |
3409 | } | |
3410 | } | |
3411 | ||
3412 | return -EINVAL; | |
3413 | } | |
3414 | EXPORT_SYMBOL(drm_object_property_set_value); | |
3415 | ||
c8e32cc1 DV |
3416 | /** |
3417 | * drm_object_property_get_value - retrieve the value of a property | |
3418 | * @obj: drm mode object to get property value from | |
3419 | * @property: property to retrieve | |
3420 | * @val: storage for the property value | |
3421 | * | |
3422 | * This function retrieves the softare state of the given property for the given | |
3423 | * property. Since there is no driver callback to retrieve the current property | |
3424 | * value this might be out of sync with the hardware, depending upon the driver | |
3425 | * and property. | |
3426 | * | |
3427 | * Returns: | |
3428 | * Zero on success, error code on failure. | |
3429 | */ | |
c543188a PZ |
3430 | int drm_object_property_get_value(struct drm_mode_object *obj, |
3431 | struct drm_property *property, uint64_t *val) | |
3432 | { | |
3433 | int i; | |
3434 | ||
7f88a9be | 3435 | for (i = 0; i < obj->properties->count; i++) { |
c543188a PZ |
3436 | if (obj->properties->ids[i] == property->base.id) { |
3437 | *val = obj->properties->values[i]; | |
3438 | return 0; | |
3439 | } | |
3440 | } | |
3441 | ||
3442 | return -EINVAL; | |
3443 | } | |
3444 | EXPORT_SYMBOL(drm_object_property_get_value); | |
3445 | ||
c8e32cc1 DV |
3446 | /** |
3447 | * drm_mode_getproperty_ioctl - get the current value of a connector's property | |
3448 | * @dev: DRM device | |
3449 | * @data: ioctl data | |
3450 | * @file_priv: DRM file info | |
3451 | * | |
3452 | * This function retrieves the current value for an connectors's property. | |
3453 | * | |
3454 | * Called by the user via ioctl. | |
3455 | * | |
3456 | * Returns: | |
3457 | * Zero on success, errno on failure. | |
3458 | */ | |
f453ba04 DA |
3459 | int drm_mode_getproperty_ioctl(struct drm_device *dev, |
3460 | void *data, struct drm_file *file_priv) | |
3461 | { | |
3462 | struct drm_mode_object *obj; | |
3463 | struct drm_mode_get_property *out_resp = data; | |
3464 | struct drm_property *property; | |
3465 | int enum_count = 0; | |
3466 | int blob_count = 0; | |
3467 | int value_count = 0; | |
3468 | int ret = 0, i; | |
3469 | int copied; | |
3470 | struct drm_property_enum *prop_enum; | |
3471 | struct drm_mode_property_enum __user *enum_ptr; | |
3472 | struct drm_property_blob *prop_blob; | |
81f6c7f8 | 3473 | uint32_t __user *blob_id_ptr; |
f453ba04 DA |
3474 | uint64_t __user *values_ptr; |
3475 | uint32_t __user *blob_length_ptr; | |
3476 | ||
fb3b06c8 DA |
3477 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3478 | return -EINVAL; | |
3479 | ||
84849903 | 3480 | drm_modeset_lock_all(dev); |
f453ba04 DA |
3481 | obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY); |
3482 | if (!obj) { | |
f27657f2 | 3483 | ret = -ENOENT; |
f453ba04 DA |
3484 | goto done; |
3485 | } | |
3486 | property = obj_to_property(obj); | |
3487 | ||
49e27545 | 3488 | if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) { |
f453ba04 DA |
3489 | list_for_each_entry(prop_enum, &property->enum_blob_list, head) |
3490 | enum_count++; | |
3491 | } else if (property->flags & DRM_MODE_PROP_BLOB) { | |
3492 | list_for_each_entry(prop_blob, &property->enum_blob_list, head) | |
3493 | blob_count++; | |
3494 | } | |
3495 | ||
3496 | value_count = property->num_values; | |
3497 | ||
3498 | strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); | |
3499 | out_resp->name[DRM_PROP_NAME_LEN-1] = 0; | |
3500 | out_resp->flags = property->flags; | |
3501 | ||
3502 | if ((out_resp->count_values >= value_count) && value_count) { | |
81f6c7f8 | 3503 | values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; |
f453ba04 DA |
3504 | for (i = 0; i < value_count; i++) { |
3505 | if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { | |
3506 | ret = -EFAULT; | |
3507 | goto done; | |
3508 | } | |
3509 | } | |
3510 | } | |
3511 | out_resp->count_values = value_count; | |
3512 | ||
49e27545 | 3513 | if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) { |
f453ba04 DA |
3514 | if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { |
3515 | copied = 0; | |
81f6c7f8 | 3516 | enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; |
f453ba04 DA |
3517 | list_for_each_entry(prop_enum, &property->enum_blob_list, head) { |
3518 | ||
3519 | if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { | |
3520 | ret = -EFAULT; | |
3521 | goto done; | |
3522 | } | |
3523 | ||
3524 | if (copy_to_user(&enum_ptr[copied].name, | |
3525 | &prop_enum->name, DRM_PROP_NAME_LEN)) { | |
3526 | ret = -EFAULT; | |
3527 | goto done; | |
3528 | } | |
3529 | copied++; | |
3530 | } | |
3531 | } | |
3532 | out_resp->count_enum_blobs = enum_count; | |
3533 | } | |
3534 | ||
3535 | if (property->flags & DRM_MODE_PROP_BLOB) { | |
3536 | if ((out_resp->count_enum_blobs >= blob_count) && blob_count) { | |
3537 | copied = 0; | |
81f6c7f8 VS |
3538 | blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr; |
3539 | blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr; | |
f453ba04 DA |
3540 | |
3541 | list_for_each_entry(prop_blob, &property->enum_blob_list, head) { | |
3542 | if (put_user(prop_blob->base.id, blob_id_ptr + copied)) { | |
3543 | ret = -EFAULT; | |
3544 | goto done; | |
3545 | } | |
3546 | ||
3547 | if (put_user(prop_blob->length, blob_length_ptr + copied)) { | |
3548 | ret = -EFAULT; | |
3549 | goto done; | |
3550 | } | |
3551 | ||
3552 | copied++; | |
3553 | } | |
3554 | } | |
3555 | out_resp->count_enum_blobs = blob_count; | |
3556 | } | |
3557 | done: | |
84849903 | 3558 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
3559 | return ret; |
3560 | } | |
3561 | ||
3562 | static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length, | |
3563 | void *data) | |
3564 | { | |
3565 | struct drm_property_blob *blob; | |
6bfc56aa | 3566 | int ret; |
f453ba04 DA |
3567 | |
3568 | if (!length || !data) | |
3569 | return NULL; | |
3570 | ||
3571 | blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); | |
3572 | if (!blob) | |
3573 | return NULL; | |
3574 | ||
6bfc56aa VS |
3575 | ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB); |
3576 | if (ret) { | |
3577 | kfree(blob); | |
3578 | return NULL; | |
3579 | } | |
3580 | ||
f453ba04 DA |
3581 | blob->length = length; |
3582 | ||
3583 | memcpy(blob->data, data, length); | |
3584 | ||
f453ba04 DA |
3585 | list_add_tail(&blob->head, &dev->mode_config.property_blob_list); |
3586 | return blob; | |
3587 | } | |
3588 | ||
3589 | static void drm_property_destroy_blob(struct drm_device *dev, | |
3590 | struct drm_property_blob *blob) | |
3591 | { | |
3592 | drm_mode_object_put(dev, &blob->base); | |
3593 | list_del(&blob->head); | |
3594 | kfree(blob); | |
3595 | } | |
3596 | ||
c8e32cc1 DV |
3597 | /** |
3598 | * drm_mode_getblob_ioctl - get the contents of a blob property value | |
3599 | * @dev: DRM device | |
3600 | * @data: ioctl data | |
3601 | * @file_priv: DRM file info | |
3602 | * | |
3603 | * This function retrieves the contents of a blob property. The value stored in | |
3604 | * an object's blob property is just a normal modeset object id. | |
3605 | * | |
3606 | * Called by the user via ioctl. | |
3607 | * | |
3608 | * Returns: | |
3609 | * Zero on success, errno on failure. | |
3610 | */ | |
f453ba04 DA |
3611 | int drm_mode_getblob_ioctl(struct drm_device *dev, |
3612 | void *data, struct drm_file *file_priv) | |
3613 | { | |
3614 | struct drm_mode_object *obj; | |
3615 | struct drm_mode_get_blob *out_resp = data; | |
3616 | struct drm_property_blob *blob; | |
3617 | int ret = 0; | |
81f6c7f8 | 3618 | void __user *blob_ptr; |
f453ba04 | 3619 | |
fb3b06c8 DA |
3620 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3621 | return -EINVAL; | |
3622 | ||
84849903 | 3623 | drm_modeset_lock_all(dev); |
f453ba04 DA |
3624 | obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB); |
3625 | if (!obj) { | |
f27657f2 | 3626 | ret = -ENOENT; |
f453ba04 DA |
3627 | goto done; |
3628 | } | |
3629 | blob = obj_to_blob(obj); | |
3630 | ||
3631 | if (out_resp->length == blob->length) { | |
81f6c7f8 | 3632 | blob_ptr = (void __user *)(unsigned long)out_resp->data; |
f453ba04 DA |
3633 | if (copy_to_user(blob_ptr, blob->data, blob->length)){ |
3634 | ret = -EFAULT; | |
3635 | goto done; | |
3636 | } | |
3637 | } | |
3638 | out_resp->length = blob->length; | |
3639 | ||
3640 | done: | |
84849903 | 3641 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
3642 | return ret; |
3643 | } | |
3644 | ||
c8e32cc1 DV |
3645 | /** |
3646 | * drm_mode_connector_update_edid_property - update the edid property of a connector | |
3647 | * @connector: drm connector | |
3648 | * @edid: new value of the edid property | |
3649 | * | |
3650 | * This function creates a new blob modeset object and assigns its id to the | |
3651 | * connector's edid property. | |
3652 | * | |
3653 | * Returns: | |
3654 | * Zero on success, errno on failure. | |
3655 | */ | |
f453ba04 DA |
3656 | int drm_mode_connector_update_edid_property(struct drm_connector *connector, |
3657 | struct edid *edid) | |
3658 | { | |
3659 | struct drm_device *dev = connector->dev; | |
4a1b0714 | 3660 | int ret, size; |
f453ba04 DA |
3661 | |
3662 | if (connector->edid_blob_ptr) | |
3663 | drm_property_destroy_blob(dev, connector->edid_blob_ptr); | |
3664 | ||
3665 | /* Delete edid, when there is none. */ | |
3666 | if (!edid) { | |
3667 | connector->edid_blob_ptr = NULL; | |
58495563 | 3668 | ret = drm_object_property_set_value(&connector->base, dev->mode_config.edid_property, 0); |
f453ba04 DA |
3669 | return ret; |
3670 | } | |
3671 | ||
7466f4cc AJ |
3672 | size = EDID_LENGTH * (1 + edid->extensions); |
3673 | connector->edid_blob_ptr = drm_property_create_blob(connector->dev, | |
3674 | size, edid); | |
e655d122 SK |
3675 | if (!connector->edid_blob_ptr) |
3676 | return -EINVAL; | |
f453ba04 | 3677 | |
58495563 | 3678 | ret = drm_object_property_set_value(&connector->base, |
f453ba04 DA |
3679 | dev->mode_config.edid_property, |
3680 | connector->edid_blob_ptr->base.id); | |
3681 | ||
3682 | return ret; | |
3683 | } | |
3684 | EXPORT_SYMBOL(drm_mode_connector_update_edid_property); | |
3685 | ||
26a34815 | 3686 | static bool drm_property_change_is_valid(struct drm_property *property, |
592c20ee | 3687 | uint64_t value) |
26a34815 PZ |
3688 | { |
3689 | if (property->flags & DRM_MODE_PROP_IMMUTABLE) | |
3690 | return false; | |
3691 | if (property->flags & DRM_MODE_PROP_RANGE) { | |
3692 | if (value < property->values[0] || value > property->values[1]) | |
3693 | return false; | |
3694 | return true; | |
49e27545 RC |
3695 | } else if (property->flags & DRM_MODE_PROP_BITMASK) { |
3696 | int i; | |
592c20ee | 3697 | uint64_t valid_mask = 0; |
49e27545 RC |
3698 | for (i = 0; i < property->num_values; i++) |
3699 | valid_mask |= (1ULL << property->values[i]); | |
3700 | return !(value & ~valid_mask); | |
c4a56750 VS |
3701 | } else if (property->flags & DRM_MODE_PROP_BLOB) { |
3702 | /* Only the driver knows */ | |
3703 | return true; | |
26a34815 PZ |
3704 | } else { |
3705 | int i; | |
3706 | for (i = 0; i < property->num_values; i++) | |
3707 | if (property->values[i] == value) | |
3708 | return true; | |
3709 | return false; | |
3710 | } | |
3711 | } | |
3712 | ||
c8e32cc1 DV |
3713 | /** |
3714 | * drm_mode_connector_property_set_ioctl - set the current value of a connector property | |
3715 | * @dev: DRM device | |
3716 | * @data: ioctl data | |
3717 | * @file_priv: DRM file info | |
3718 | * | |
3719 | * This function sets the current value for a connectors's property. It also | |
3720 | * calls into a driver's ->set_property callback to update the hardware state | |
3721 | * | |
3722 | * Called by the user via ioctl. | |
3723 | * | |
3724 | * Returns: | |
3725 | * Zero on success, errno on failure. | |
3726 | */ | |
f453ba04 DA |
3727 | int drm_mode_connector_property_set_ioctl(struct drm_device *dev, |
3728 | void *data, struct drm_file *file_priv) | |
3729 | { | |
0057d8dd PZ |
3730 | struct drm_mode_connector_set_property *conn_set_prop = data; |
3731 | struct drm_mode_obj_set_property obj_set_prop = { | |
3732 | .value = conn_set_prop->value, | |
3733 | .prop_id = conn_set_prop->prop_id, | |
3734 | .obj_id = conn_set_prop->connector_id, | |
3735 | .obj_type = DRM_MODE_OBJECT_CONNECTOR | |
3736 | }; | |
fb3b06c8 | 3737 | |
0057d8dd PZ |
3738 | /* It does all the locking and checking we need */ |
3739 | return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv); | |
f453ba04 DA |
3740 | } |
3741 | ||
c543188a PZ |
3742 | static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, |
3743 | struct drm_property *property, | |
3744 | uint64_t value) | |
3745 | { | |
3746 | int ret = -EINVAL; | |
3747 | struct drm_connector *connector = obj_to_connector(obj); | |
3748 | ||
3749 | /* Do DPMS ourselves */ | |
3750 | if (property == connector->dev->mode_config.dpms_property) { | |
3751 | if (connector->funcs->dpms) | |
3752 | (*connector->funcs->dpms)(connector, (int)value); | |
3753 | ret = 0; | |
3754 | } else if (connector->funcs->set_property) | |
3755 | ret = connector->funcs->set_property(connector, property, value); | |
3756 | ||
3757 | /* store the property value if successful */ | |
3758 | if (!ret) | |
58495563 | 3759 | drm_object_property_set_value(&connector->base, property, value); |
c543188a PZ |
3760 | return ret; |
3761 | } | |
3762 | ||
bffd9de0 PZ |
3763 | static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, |
3764 | struct drm_property *property, | |
3765 | uint64_t value) | |
3766 | { | |
3767 | int ret = -EINVAL; | |
3768 | struct drm_crtc *crtc = obj_to_crtc(obj); | |
3769 | ||
3770 | if (crtc->funcs->set_property) | |
3771 | ret = crtc->funcs->set_property(crtc, property, value); | |
3772 | if (!ret) | |
3773 | drm_object_property_set_value(obj, property, value); | |
3774 | ||
3775 | return ret; | |
3776 | } | |
3777 | ||
4d93914a RC |
3778 | static int drm_mode_plane_set_obj_prop(struct drm_mode_object *obj, |
3779 | struct drm_property *property, | |
3780 | uint64_t value) | |
3781 | { | |
3782 | int ret = -EINVAL; | |
3783 | struct drm_plane *plane = obj_to_plane(obj); | |
3784 | ||
3785 | if (plane->funcs->set_property) | |
3786 | ret = plane->funcs->set_property(plane, property, value); | |
3787 | if (!ret) | |
3788 | drm_object_property_set_value(obj, property, value); | |
3789 | ||
3790 | return ret; | |
3791 | } | |
3792 | ||
c8e32cc1 DV |
3793 | /** |
3794 | * drm_mode_getproperty_ioctl - get the current value of a object's property | |
3795 | * @dev: DRM device | |
3796 | * @data: ioctl data | |
3797 | * @file_priv: DRM file info | |
3798 | * | |
3799 | * This function retrieves the current value for an object's property. Compared | |
3800 | * to the connector specific ioctl this one is extended to also work on crtc and | |
3801 | * plane objects. | |
3802 | * | |
3803 | * Called by the user via ioctl. | |
3804 | * | |
3805 | * Returns: | |
3806 | * Zero on success, errno on failure. | |
3807 | */ | |
c543188a PZ |
3808 | int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, |
3809 | struct drm_file *file_priv) | |
3810 | { | |
3811 | struct drm_mode_obj_get_properties *arg = data; | |
3812 | struct drm_mode_object *obj; | |
3813 | int ret = 0; | |
3814 | int i; | |
3815 | int copied = 0; | |
3816 | int props_count = 0; | |
3817 | uint32_t __user *props_ptr; | |
3818 | uint64_t __user *prop_values_ptr; | |
3819 | ||
3820 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
3821 | return -EINVAL; | |
3822 | ||
84849903 | 3823 | drm_modeset_lock_all(dev); |
c543188a PZ |
3824 | |
3825 | obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); | |
3826 | if (!obj) { | |
f27657f2 | 3827 | ret = -ENOENT; |
c543188a PZ |
3828 | goto out; |
3829 | } | |
3830 | if (!obj->properties) { | |
3831 | ret = -EINVAL; | |
3832 | goto out; | |
3833 | } | |
3834 | ||
7f88a9be | 3835 | props_count = obj->properties->count; |
c543188a PZ |
3836 | |
3837 | /* This ioctl is called twice, once to determine how much space is | |
3838 | * needed, and the 2nd time to fill it. */ | |
3839 | if ((arg->count_props >= props_count) && props_count) { | |
3840 | copied = 0; | |
3841 | props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr); | |
3842 | prop_values_ptr = (uint64_t __user *)(unsigned long) | |
3843 | (arg->prop_values_ptr); | |
3844 | for (i = 0; i < props_count; i++) { | |
3845 | if (put_user(obj->properties->ids[i], | |
3846 | props_ptr + copied)) { | |
3847 | ret = -EFAULT; | |
3848 | goto out; | |
3849 | } | |
3850 | if (put_user(obj->properties->values[i], | |
3851 | prop_values_ptr + copied)) { | |
3852 | ret = -EFAULT; | |
3853 | goto out; | |
3854 | } | |
3855 | copied++; | |
3856 | } | |
3857 | } | |
3858 | arg->count_props = props_count; | |
3859 | out: | |
84849903 | 3860 | drm_modeset_unlock_all(dev); |
c543188a PZ |
3861 | return ret; |
3862 | } | |
3863 | ||
c8e32cc1 DV |
3864 | /** |
3865 | * drm_mode_obj_set_property_ioctl - set the current value of an object's property | |
3866 | * @dev: DRM device | |
3867 | * @data: ioctl data | |
3868 | * @file_priv: DRM file info | |
3869 | * | |
3870 | * This function sets the current value for an object's property. It also calls | |
3871 | * into a driver's ->set_property callback to update the hardware state. | |
3872 | * Compared to the connector specific ioctl this one is extended to also work on | |
3873 | * crtc and plane objects. | |
3874 | * | |
3875 | * Called by the user via ioctl. | |
3876 | * | |
3877 | * Returns: | |
3878 | * Zero on success, errno on failure. | |
3879 | */ | |
c543188a PZ |
3880 | int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, |
3881 | struct drm_file *file_priv) | |
3882 | { | |
3883 | struct drm_mode_obj_set_property *arg = data; | |
3884 | struct drm_mode_object *arg_obj; | |
3885 | struct drm_mode_object *prop_obj; | |
3886 | struct drm_property *property; | |
3887 | int ret = -EINVAL; | |
3888 | int i; | |
3889 | ||
3890 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
3891 | return -EINVAL; | |
3892 | ||
84849903 | 3893 | drm_modeset_lock_all(dev); |
c543188a PZ |
3894 | |
3895 | arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); | |
f27657f2 VS |
3896 | if (!arg_obj) { |
3897 | ret = -ENOENT; | |
c543188a | 3898 | goto out; |
f27657f2 | 3899 | } |
c543188a PZ |
3900 | if (!arg_obj->properties) |
3901 | goto out; | |
3902 | ||
7f88a9be | 3903 | for (i = 0; i < arg_obj->properties->count; i++) |
c543188a PZ |
3904 | if (arg_obj->properties->ids[i] == arg->prop_id) |
3905 | break; | |
3906 | ||
7f88a9be | 3907 | if (i == arg_obj->properties->count) |
c543188a PZ |
3908 | goto out; |
3909 | ||
3910 | prop_obj = drm_mode_object_find(dev, arg->prop_id, | |
3911 | DRM_MODE_OBJECT_PROPERTY); | |
f27657f2 VS |
3912 | if (!prop_obj) { |
3913 | ret = -ENOENT; | |
c543188a | 3914 | goto out; |
f27657f2 | 3915 | } |
c543188a PZ |
3916 | property = obj_to_property(prop_obj); |
3917 | ||
3918 | if (!drm_property_change_is_valid(property, arg->value)) | |
3919 | goto out; | |
3920 | ||
3921 | switch (arg_obj->type) { | |
3922 | case DRM_MODE_OBJECT_CONNECTOR: | |
3923 | ret = drm_mode_connector_set_obj_prop(arg_obj, property, | |
3924 | arg->value); | |
3925 | break; | |
bffd9de0 PZ |
3926 | case DRM_MODE_OBJECT_CRTC: |
3927 | ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value); | |
3928 | break; | |
4d93914a RC |
3929 | case DRM_MODE_OBJECT_PLANE: |
3930 | ret = drm_mode_plane_set_obj_prop(arg_obj, property, arg->value); | |
3931 | break; | |
c543188a PZ |
3932 | } |
3933 | ||
3934 | out: | |
84849903 | 3935 | drm_modeset_unlock_all(dev); |
c543188a PZ |
3936 | return ret; |
3937 | } | |
3938 | ||
c8e32cc1 DV |
3939 | /** |
3940 | * drm_mode_connector_attach_encoder - attach a connector to an encoder | |
3941 | * @connector: connector to attach | |
3942 | * @encoder: encoder to attach @connector to | |
3943 | * | |
3944 | * This function links up a connector to an encoder. Note that the routing | |
3945 | * restrictions between encoders and crtcs are exposed to userspace through the | |
3946 | * possible_clones and possible_crtcs bitmasks. | |
3947 | * | |
3948 | * Returns: | |
3949 | * Zero on success, errno on failure. | |
3950 | */ | |
f453ba04 DA |
3951 | int drm_mode_connector_attach_encoder(struct drm_connector *connector, |
3952 | struct drm_encoder *encoder) | |
3953 | { | |
3954 | int i; | |
3955 | ||
3956 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { | |
3957 | if (connector->encoder_ids[i] == 0) { | |
3958 | connector->encoder_ids[i] = encoder->base.id; | |
3959 | return 0; | |
3960 | } | |
3961 | } | |
3962 | return -ENOMEM; | |
3963 | } | |
3964 | EXPORT_SYMBOL(drm_mode_connector_attach_encoder); | |
3965 | ||
c8e32cc1 DV |
3966 | /** |
3967 | * drm_mode_crtc_set_gamma_size - set the gamma table size | |
3968 | * @crtc: CRTC to set the gamma table size for | |
3969 | * @gamma_size: size of the gamma table | |
3970 | * | |
3971 | * Drivers which support gamma tables should set this to the supported gamma | |
3972 | * table size when initializing the CRTC. Currently the drm core only supports a | |
3973 | * fixed gamma table size. | |
3974 | * | |
3975 | * Returns: | |
3976 | * Zero on success, errno on failure. | |
3977 | */ | |
4cae5b84 | 3978 | int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, |
c8e32cc1 | 3979 | int gamma_size) |
f453ba04 DA |
3980 | { |
3981 | crtc->gamma_size = gamma_size; | |
3982 | ||
3983 | crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL); | |
3984 | if (!crtc->gamma_store) { | |
3985 | crtc->gamma_size = 0; | |
4cae5b84 | 3986 | return -ENOMEM; |
f453ba04 DA |
3987 | } |
3988 | ||
4cae5b84 | 3989 | return 0; |
f453ba04 DA |
3990 | } |
3991 | EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); | |
3992 | ||
c8e32cc1 DV |
3993 | /** |
3994 | * drm_mode_gamma_set_ioctl - set the gamma table | |
3995 | * @dev: DRM device | |
3996 | * @data: ioctl data | |
3997 | * @file_priv: DRM file info | |
3998 | * | |
3999 | * Set the gamma table of a CRTC to the one passed in by the user. Userspace can | |
4000 | * inquire the required gamma table size through drm_mode_gamma_get_ioctl. | |
4001 | * | |
4002 | * Called by the user via ioctl. | |
4003 | * | |
4004 | * Returns: | |
4005 | * Zero on success, errno on failure. | |
4006 | */ | |
f453ba04 DA |
4007 | int drm_mode_gamma_set_ioctl(struct drm_device *dev, |
4008 | void *data, struct drm_file *file_priv) | |
4009 | { | |
4010 | struct drm_mode_crtc_lut *crtc_lut = data; | |
4011 | struct drm_mode_object *obj; | |
4012 | struct drm_crtc *crtc; | |
4013 | void *r_base, *g_base, *b_base; | |
4014 | int size; | |
4015 | int ret = 0; | |
4016 | ||
fb3b06c8 DA |
4017 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4018 | return -EINVAL; | |
4019 | ||
84849903 | 4020 | drm_modeset_lock_all(dev); |
f453ba04 DA |
4021 | obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC); |
4022 | if (!obj) { | |
f27657f2 | 4023 | ret = -ENOENT; |
f453ba04 DA |
4024 | goto out; |
4025 | } | |
4026 | crtc = obj_to_crtc(obj); | |
4027 | ||
ebe0f244 LP |
4028 | if (crtc->funcs->gamma_set == NULL) { |
4029 | ret = -ENOSYS; | |
4030 | goto out; | |
4031 | } | |
4032 | ||
f453ba04 DA |
4033 | /* memcpy into gamma store */ |
4034 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
4035 | ret = -EINVAL; | |
4036 | goto out; | |
4037 | } | |
4038 | ||
4039 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
4040 | r_base = crtc->gamma_store; | |
4041 | if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { | |
4042 | ret = -EFAULT; | |
4043 | goto out; | |
4044 | } | |
4045 | ||
4046 | g_base = r_base + size; | |
4047 | if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { | |
4048 | ret = -EFAULT; | |
4049 | goto out; | |
4050 | } | |
4051 | ||
4052 | b_base = g_base + size; | |
4053 | if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { | |
4054 | ret = -EFAULT; | |
4055 | goto out; | |
4056 | } | |
4057 | ||
7203425a | 4058 | crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); |
f453ba04 DA |
4059 | |
4060 | out: | |
84849903 | 4061 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
4062 | return ret; |
4063 | ||
4064 | } | |
4065 | ||
c8e32cc1 DV |
4066 | /** |
4067 | * drm_mode_gamma_get_ioctl - get the gamma table | |
4068 | * @dev: DRM device | |
4069 | * @data: ioctl data | |
4070 | * @file_priv: DRM file info | |
4071 | * | |
4072 | * Copy the current gamma table into the storage provided. This also provides | |
4073 | * the gamma table size the driver expects, which can be used to size the | |
4074 | * allocated storage. | |
4075 | * | |
4076 | * Called by the user via ioctl. | |
4077 | * | |
4078 | * Returns: | |
4079 | * Zero on success, errno on failure. | |
4080 | */ | |
f453ba04 DA |
4081 | int drm_mode_gamma_get_ioctl(struct drm_device *dev, |
4082 | void *data, struct drm_file *file_priv) | |
4083 | { | |
4084 | struct drm_mode_crtc_lut *crtc_lut = data; | |
4085 | struct drm_mode_object *obj; | |
4086 | struct drm_crtc *crtc; | |
4087 | void *r_base, *g_base, *b_base; | |
4088 | int size; | |
4089 | int ret = 0; | |
4090 | ||
fb3b06c8 DA |
4091 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4092 | return -EINVAL; | |
4093 | ||
84849903 | 4094 | drm_modeset_lock_all(dev); |
f453ba04 DA |
4095 | obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC); |
4096 | if (!obj) { | |
f27657f2 | 4097 | ret = -ENOENT; |
f453ba04 DA |
4098 | goto out; |
4099 | } | |
4100 | crtc = obj_to_crtc(obj); | |
4101 | ||
4102 | /* memcpy into gamma store */ | |
4103 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
4104 | ret = -EINVAL; | |
4105 | goto out; | |
4106 | } | |
4107 | ||
4108 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
4109 | r_base = crtc->gamma_store; | |
4110 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { | |
4111 | ret = -EFAULT; | |
4112 | goto out; | |
4113 | } | |
4114 | ||
4115 | g_base = r_base + size; | |
4116 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { | |
4117 | ret = -EFAULT; | |
4118 | goto out; | |
4119 | } | |
4120 | ||
4121 | b_base = g_base + size; | |
4122 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { | |
4123 | ret = -EFAULT; | |
4124 | goto out; | |
4125 | } | |
4126 | out: | |
84849903 | 4127 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
4128 | return ret; |
4129 | } | |
d91d8a3f | 4130 | |
c8e32cc1 DV |
4131 | /** |
4132 | * drm_mode_page_flip_ioctl - schedule an asynchronous fb update | |
4133 | * @dev: DRM device | |
4134 | * @data: ioctl data | |
4135 | * @file_priv: DRM file info | |
4136 | * | |
4137 | * This schedules an asynchronous update on a given CRTC, called page flip. | |
4138 | * Optionally a drm event is generated to signal the completion of the event. | |
4139 | * Generic drivers cannot assume that a pageflip with changed framebuffer | |
4140 | * properties (including driver specific metadata like tiling layout) will work, | |
4141 | * but some drivers support e.g. pixel format changes through the pageflip | |
4142 | * ioctl. | |
4143 | * | |
4144 | * Called by the user via ioctl. | |
4145 | * | |
4146 | * Returns: | |
4147 | * Zero on success, errno on failure. | |
4148 | */ | |
d91d8a3f KH |
4149 | int drm_mode_page_flip_ioctl(struct drm_device *dev, |
4150 | void *data, struct drm_file *file_priv) | |
4151 | { | |
4152 | struct drm_mode_crtc_page_flip *page_flip = data; | |
4153 | struct drm_mode_object *obj; | |
4154 | struct drm_crtc *crtc; | |
b0d12325 | 4155 | struct drm_framebuffer *fb = NULL, *old_fb = NULL; |
d91d8a3f KH |
4156 | struct drm_pending_vblank_event *e = NULL; |
4157 | unsigned long flags; | |
4158 | int ret = -EINVAL; | |
4159 | ||
4160 | if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS || | |
4161 | page_flip->reserved != 0) | |
4162 | return -EINVAL; | |
4163 | ||
62f2104f KP |
4164 | if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip) |
4165 | return -EINVAL; | |
4166 | ||
d91d8a3f KH |
4167 | obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC); |
4168 | if (!obj) | |
f27657f2 | 4169 | return -ENOENT; |
d91d8a3f KH |
4170 | crtc = obj_to_crtc(obj); |
4171 | ||
b4d5e7d1 | 4172 | mutex_lock(&crtc->mutex); |
f4510a27 | 4173 | if (crtc->primary->fb == NULL) { |
90c1efdd CW |
4174 | /* The framebuffer is currently unbound, presumably |
4175 | * due to a hotplug event, that userspace has not | |
4176 | * yet discovered. | |
4177 | */ | |
4178 | ret = -EBUSY; | |
4179 | goto out; | |
4180 | } | |
4181 | ||
d91d8a3f KH |
4182 | if (crtc->funcs->page_flip == NULL) |
4183 | goto out; | |
4184 | ||
786b99ed | 4185 | fb = drm_framebuffer_lookup(dev, page_flip->fb_id); |
37c4e705 VS |
4186 | if (!fb) { |
4187 | ret = -ENOENT; | |
d91d8a3f | 4188 | goto out; |
37c4e705 | 4189 | } |
d91d8a3f | 4190 | |
c11e9283 DL |
4191 | ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb); |
4192 | if (ret) | |
5f61bb42 | 4193 | goto out; |
5f61bb42 | 4194 | |
f4510a27 | 4195 | if (crtc->primary->fb->pixel_format != fb->pixel_format) { |
909d9cda LP |
4196 | DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n"); |
4197 | ret = -EINVAL; | |
4198 | goto out; | |
4199 | } | |
4200 | ||
d91d8a3f KH |
4201 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { |
4202 | ret = -ENOMEM; | |
4203 | spin_lock_irqsave(&dev->event_lock, flags); | |
4204 | if (file_priv->event_space < sizeof e->event) { | |
4205 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4206 | goto out; | |
4207 | } | |
4208 | file_priv->event_space -= sizeof e->event; | |
4209 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4210 | ||
4211 | e = kzalloc(sizeof *e, GFP_KERNEL); | |
4212 | if (e == NULL) { | |
4213 | spin_lock_irqsave(&dev->event_lock, flags); | |
4214 | file_priv->event_space += sizeof e->event; | |
4215 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4216 | goto out; | |
4217 | } | |
4218 | ||
7bd4d7be | 4219 | e->event.base.type = DRM_EVENT_FLIP_COMPLETE; |
d91d8a3f KH |
4220 | e->event.base.length = sizeof e->event; |
4221 | e->event.user_data = page_flip->user_data; | |
4222 | e->base.event = &e->event.base; | |
4223 | e->base.file_priv = file_priv; | |
4224 | e->base.destroy = | |
4225 | (void (*) (struct drm_pending_event *)) kfree; | |
4226 | } | |
4227 | ||
f4510a27 | 4228 | old_fb = crtc->primary->fb; |
ed8d1975 | 4229 | ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags); |
d91d8a3f | 4230 | if (ret) { |
aef6a7ee JS |
4231 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { |
4232 | spin_lock_irqsave(&dev->event_lock, flags); | |
4233 | file_priv->event_space += sizeof e->event; | |
4234 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4235 | kfree(e); | |
4236 | } | |
b0d12325 DV |
4237 | /* Keep the old fb, don't unref it. */ |
4238 | old_fb = NULL; | |
4239 | } else { | |
8cf1e981 TR |
4240 | /* |
4241 | * Warn if the driver hasn't properly updated the crtc->fb | |
4242 | * field to reflect that the new framebuffer is now used. | |
4243 | * Failing to do so will screw with the reference counting | |
4244 | * on framebuffers. | |
4245 | */ | |
f4510a27 | 4246 | WARN_ON(crtc->primary->fb != fb); |
b0d12325 DV |
4247 | /* Unref only the old framebuffer. */ |
4248 | fb = NULL; | |
d91d8a3f KH |
4249 | } |
4250 | ||
4251 | out: | |
b0d12325 DV |
4252 | if (fb) |
4253 | drm_framebuffer_unreference(fb); | |
4254 | if (old_fb) | |
4255 | drm_framebuffer_unreference(old_fb); | |
b4d5e7d1 DV |
4256 | mutex_unlock(&crtc->mutex); |
4257 | ||
d91d8a3f KH |
4258 | return ret; |
4259 | } | |
eb033556 | 4260 | |
c8e32cc1 DV |
4261 | /** |
4262 | * drm_mode_config_reset - call ->reset callbacks | |
4263 | * @dev: drm device | |
4264 | * | |
4265 | * This functions calls all the crtc's, encoder's and connector's ->reset | |
4266 | * callback. Drivers can use this in e.g. their driver load or resume code to | |
4267 | * reset hardware and software state. | |
4268 | */ | |
eb033556 CW |
4269 | void drm_mode_config_reset(struct drm_device *dev) |
4270 | { | |
4271 | struct drm_crtc *crtc; | |
4272 | struct drm_encoder *encoder; | |
4273 | struct drm_connector *connector; | |
4274 | ||
4275 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) | |
4276 | if (crtc->funcs->reset) | |
4277 | crtc->funcs->reset(crtc); | |
4278 | ||
4279 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) | |
4280 | if (encoder->funcs->reset) | |
4281 | encoder->funcs->reset(encoder); | |
4282 | ||
5e2cb2f6 DV |
4283 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
4284 | connector->status = connector_status_unknown; | |
4285 | ||
eb033556 CW |
4286 | if (connector->funcs->reset) |
4287 | connector->funcs->reset(connector); | |
5e2cb2f6 | 4288 | } |
eb033556 CW |
4289 | } |
4290 | EXPORT_SYMBOL(drm_mode_config_reset); | |
ff72145b | 4291 | |
c8e32cc1 DV |
4292 | /** |
4293 | * drm_mode_create_dumb_ioctl - create a dumb backing storage buffer | |
4294 | * @dev: DRM device | |
4295 | * @data: ioctl data | |
4296 | * @file_priv: DRM file info | |
4297 | * | |
4298 | * This creates a new dumb buffer in the driver's backing storage manager (GEM, | |
4299 | * TTM or something else entirely) and returns the resulting buffer handle. This | |
4300 | * handle can then be wrapped up into a framebuffer modeset object. | |
4301 | * | |
4302 | * Note that userspace is not allowed to use such objects for render | |
4303 | * acceleration - drivers must create their own private ioctls for such a use | |
4304 | * case. | |
4305 | * | |
4306 | * Called by the user via ioctl. | |
4307 | * | |
4308 | * Returns: | |
4309 | * Zero on success, errno on failure. | |
4310 | */ | |
ff72145b DA |
4311 | int drm_mode_create_dumb_ioctl(struct drm_device *dev, |
4312 | void *data, struct drm_file *file_priv) | |
4313 | { | |
4314 | struct drm_mode_create_dumb *args = data; | |
b28cd41f | 4315 | u32 cpp, stride, size; |
ff72145b DA |
4316 | |
4317 | if (!dev->driver->dumb_create) | |
4318 | return -ENOSYS; | |
b28cd41f DH |
4319 | if (!args->width || !args->height || !args->bpp) |
4320 | return -EINVAL; | |
4321 | ||
4322 | /* overflow checks for 32bit size calculations */ | |
4323 | cpp = DIV_ROUND_UP(args->bpp, 8); | |
4324 | if (cpp > 0xffffffffU / args->width) | |
4325 | return -EINVAL; | |
4326 | stride = cpp * args->width; | |
4327 | if (args->height > 0xffffffffU / stride) | |
4328 | return -EINVAL; | |
4329 | ||
4330 | /* test for wrap-around */ | |
4331 | size = args->height * stride; | |
4332 | if (PAGE_ALIGN(size) == 0) | |
4333 | return -EINVAL; | |
4334 | ||
ff72145b DA |
4335 | return dev->driver->dumb_create(file_priv, dev, args); |
4336 | } | |
4337 | ||
c8e32cc1 DV |
4338 | /** |
4339 | * drm_mode_mmap_dumb_ioctl - create an mmap offset for a dumb backing storage buffer | |
4340 | * @dev: DRM device | |
4341 | * @data: ioctl data | |
4342 | * @file_priv: DRM file info | |
4343 | * | |
4344 | * Allocate an offset in the drm device node's address space to be able to | |
4345 | * memory map a dumb buffer. | |
4346 | * | |
4347 | * Called by the user via ioctl. | |
4348 | * | |
4349 | * Returns: | |
4350 | * Zero on success, errno on failure. | |
4351 | */ | |
ff72145b DA |
4352 | int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, |
4353 | void *data, struct drm_file *file_priv) | |
4354 | { | |
4355 | struct drm_mode_map_dumb *args = data; | |
4356 | ||
4357 | /* call driver ioctl to get mmap offset */ | |
4358 | if (!dev->driver->dumb_map_offset) | |
4359 | return -ENOSYS; | |
4360 | ||
4361 | return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); | |
4362 | } | |
4363 | ||
c8e32cc1 DV |
4364 | /** |
4365 | * drm_mode_destroy_dumb_ioctl - destroy a dumb backing strage buffer | |
4366 | * @dev: DRM device | |
4367 | * @data: ioctl data | |
4368 | * @file_priv: DRM file info | |
4369 | * | |
4370 | * This destroys the userspace handle for the given dumb backing storage buffer. | |
4371 | * Since buffer objects must be reference counted in the kernel a buffer object | |
4372 | * won't be immediately freed if a framebuffer modeset object still uses it. | |
4373 | * | |
4374 | * Called by the user via ioctl. | |
4375 | * | |
4376 | * Returns: | |
4377 | * Zero on success, errno on failure. | |
4378 | */ | |
ff72145b DA |
4379 | int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, |
4380 | void *data, struct drm_file *file_priv) | |
4381 | { | |
4382 | struct drm_mode_destroy_dumb *args = data; | |
4383 | ||
4384 | if (!dev->driver->dumb_destroy) | |
4385 | return -ENOSYS; | |
4386 | ||
4387 | return dev->driver->dumb_destroy(file_priv, dev, args->handle); | |
4388 | } | |
248dbc23 | 4389 | |
c8e32cc1 DV |
4390 | /** |
4391 | * drm_fb_get_bpp_depth - get the bpp/depth values for format | |
4392 | * @format: pixel format (DRM_FORMAT_*) | |
4393 | * @depth: storage for the depth value | |
4394 | * @bpp: storage for the bpp value | |
4395 | * | |
4396 | * This only supports RGB formats here for compat with code that doesn't use | |
4397 | * pixel formats directly yet. | |
248dbc23 DA |
4398 | */ |
4399 | void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, | |
4400 | int *bpp) | |
4401 | { | |
4402 | switch (format) { | |
c51a6bc5 | 4403 | case DRM_FORMAT_C8: |
04b3924d VS |
4404 | case DRM_FORMAT_RGB332: |
4405 | case DRM_FORMAT_BGR233: | |
248dbc23 DA |
4406 | *depth = 8; |
4407 | *bpp = 8; | |
4408 | break; | |
04b3924d VS |
4409 | case DRM_FORMAT_XRGB1555: |
4410 | case DRM_FORMAT_XBGR1555: | |
4411 | case DRM_FORMAT_RGBX5551: | |
4412 | case DRM_FORMAT_BGRX5551: | |
4413 | case DRM_FORMAT_ARGB1555: | |
4414 | case DRM_FORMAT_ABGR1555: | |
4415 | case DRM_FORMAT_RGBA5551: | |
4416 | case DRM_FORMAT_BGRA5551: | |
248dbc23 DA |
4417 | *depth = 15; |
4418 | *bpp = 16; | |
4419 | break; | |
04b3924d VS |
4420 | case DRM_FORMAT_RGB565: |
4421 | case DRM_FORMAT_BGR565: | |
248dbc23 DA |
4422 | *depth = 16; |
4423 | *bpp = 16; | |
4424 | break; | |
04b3924d VS |
4425 | case DRM_FORMAT_RGB888: |
4426 | case DRM_FORMAT_BGR888: | |
4427 | *depth = 24; | |
4428 | *bpp = 24; | |
4429 | break; | |
4430 | case DRM_FORMAT_XRGB8888: | |
4431 | case DRM_FORMAT_XBGR8888: | |
4432 | case DRM_FORMAT_RGBX8888: | |
4433 | case DRM_FORMAT_BGRX8888: | |
248dbc23 DA |
4434 | *depth = 24; |
4435 | *bpp = 32; | |
4436 | break; | |
04b3924d VS |
4437 | case DRM_FORMAT_XRGB2101010: |
4438 | case DRM_FORMAT_XBGR2101010: | |
4439 | case DRM_FORMAT_RGBX1010102: | |
4440 | case DRM_FORMAT_BGRX1010102: | |
4441 | case DRM_FORMAT_ARGB2101010: | |
4442 | case DRM_FORMAT_ABGR2101010: | |
4443 | case DRM_FORMAT_RGBA1010102: | |
4444 | case DRM_FORMAT_BGRA1010102: | |
248dbc23 DA |
4445 | *depth = 30; |
4446 | *bpp = 32; | |
4447 | break; | |
04b3924d VS |
4448 | case DRM_FORMAT_ARGB8888: |
4449 | case DRM_FORMAT_ABGR8888: | |
4450 | case DRM_FORMAT_RGBA8888: | |
4451 | case DRM_FORMAT_BGRA8888: | |
248dbc23 DA |
4452 | *depth = 32; |
4453 | *bpp = 32; | |
4454 | break; | |
4455 | default: | |
23c453a4 VS |
4456 | DRM_DEBUG_KMS("unsupported pixel format %s\n", |
4457 | drm_get_format_name(format)); | |
248dbc23 DA |
4458 | *depth = 0; |
4459 | *bpp = 0; | |
4460 | break; | |
4461 | } | |
4462 | } | |
4463 | EXPORT_SYMBOL(drm_fb_get_bpp_depth); | |
141670e9 VS |
4464 | |
4465 | /** | |
4466 | * drm_format_num_planes - get the number of planes for format | |
4467 | * @format: pixel format (DRM_FORMAT_*) | |
4468 | * | |
c8e32cc1 | 4469 | * Returns: |
141670e9 VS |
4470 | * The number of planes used by the specified pixel format. |
4471 | */ | |
4472 | int drm_format_num_planes(uint32_t format) | |
4473 | { | |
4474 | switch (format) { | |
4475 | case DRM_FORMAT_YUV410: | |
4476 | case DRM_FORMAT_YVU410: | |
4477 | case DRM_FORMAT_YUV411: | |
4478 | case DRM_FORMAT_YVU411: | |
4479 | case DRM_FORMAT_YUV420: | |
4480 | case DRM_FORMAT_YVU420: | |
4481 | case DRM_FORMAT_YUV422: | |
4482 | case DRM_FORMAT_YVU422: | |
4483 | case DRM_FORMAT_YUV444: | |
4484 | case DRM_FORMAT_YVU444: | |
4485 | return 3; | |
4486 | case DRM_FORMAT_NV12: | |
4487 | case DRM_FORMAT_NV21: | |
4488 | case DRM_FORMAT_NV16: | |
4489 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
4490 | case DRM_FORMAT_NV24: |
4491 | case DRM_FORMAT_NV42: | |
141670e9 VS |
4492 | return 2; |
4493 | default: | |
4494 | return 1; | |
4495 | } | |
4496 | } | |
4497 | EXPORT_SYMBOL(drm_format_num_planes); | |
5a86bd55 VS |
4498 | |
4499 | /** | |
4500 | * drm_format_plane_cpp - determine the bytes per pixel value | |
4501 | * @format: pixel format (DRM_FORMAT_*) | |
4502 | * @plane: plane index | |
4503 | * | |
c8e32cc1 | 4504 | * Returns: |
5a86bd55 VS |
4505 | * The bytes per pixel value for the specified plane. |
4506 | */ | |
4507 | int drm_format_plane_cpp(uint32_t format, int plane) | |
4508 | { | |
4509 | unsigned int depth; | |
4510 | int bpp; | |
4511 | ||
4512 | if (plane >= drm_format_num_planes(format)) | |
4513 | return 0; | |
4514 | ||
4515 | switch (format) { | |
4516 | case DRM_FORMAT_YUYV: | |
4517 | case DRM_FORMAT_YVYU: | |
4518 | case DRM_FORMAT_UYVY: | |
4519 | case DRM_FORMAT_VYUY: | |
4520 | return 2; | |
4521 | case DRM_FORMAT_NV12: | |
4522 | case DRM_FORMAT_NV21: | |
4523 | case DRM_FORMAT_NV16: | |
4524 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
4525 | case DRM_FORMAT_NV24: |
4526 | case DRM_FORMAT_NV42: | |
5a86bd55 VS |
4527 | return plane ? 2 : 1; |
4528 | case DRM_FORMAT_YUV410: | |
4529 | case DRM_FORMAT_YVU410: | |
4530 | case DRM_FORMAT_YUV411: | |
4531 | case DRM_FORMAT_YVU411: | |
4532 | case DRM_FORMAT_YUV420: | |
4533 | case DRM_FORMAT_YVU420: | |
4534 | case DRM_FORMAT_YUV422: | |
4535 | case DRM_FORMAT_YVU422: | |
4536 | case DRM_FORMAT_YUV444: | |
4537 | case DRM_FORMAT_YVU444: | |
4538 | return 1; | |
4539 | default: | |
4540 | drm_fb_get_bpp_depth(format, &depth, &bpp); | |
4541 | return bpp >> 3; | |
4542 | } | |
4543 | } | |
4544 | EXPORT_SYMBOL(drm_format_plane_cpp); | |
01b68b04 VS |
4545 | |
4546 | /** | |
4547 | * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor | |
4548 | * @format: pixel format (DRM_FORMAT_*) | |
4549 | * | |
c8e32cc1 | 4550 | * Returns: |
01b68b04 VS |
4551 | * The horizontal chroma subsampling factor for the |
4552 | * specified pixel format. | |
4553 | */ | |
4554 | int drm_format_horz_chroma_subsampling(uint32_t format) | |
4555 | { | |
4556 | switch (format) { | |
4557 | case DRM_FORMAT_YUV411: | |
4558 | case DRM_FORMAT_YVU411: | |
4559 | case DRM_FORMAT_YUV410: | |
4560 | case DRM_FORMAT_YVU410: | |
4561 | return 4; | |
4562 | case DRM_FORMAT_YUYV: | |
4563 | case DRM_FORMAT_YVYU: | |
4564 | case DRM_FORMAT_UYVY: | |
4565 | case DRM_FORMAT_VYUY: | |
4566 | case DRM_FORMAT_NV12: | |
4567 | case DRM_FORMAT_NV21: | |
4568 | case DRM_FORMAT_NV16: | |
4569 | case DRM_FORMAT_NV61: | |
4570 | case DRM_FORMAT_YUV422: | |
4571 | case DRM_FORMAT_YVU422: | |
4572 | case DRM_FORMAT_YUV420: | |
4573 | case DRM_FORMAT_YVU420: | |
4574 | return 2; | |
4575 | default: | |
4576 | return 1; | |
4577 | } | |
4578 | } | |
4579 | EXPORT_SYMBOL(drm_format_horz_chroma_subsampling); | |
4580 | ||
4581 | /** | |
4582 | * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor | |
4583 | * @format: pixel format (DRM_FORMAT_*) | |
4584 | * | |
c8e32cc1 | 4585 | * Returns: |
01b68b04 VS |
4586 | * The vertical chroma subsampling factor for the |
4587 | * specified pixel format. | |
4588 | */ | |
4589 | int drm_format_vert_chroma_subsampling(uint32_t format) | |
4590 | { | |
4591 | switch (format) { | |
4592 | case DRM_FORMAT_YUV410: | |
4593 | case DRM_FORMAT_YVU410: | |
4594 | return 4; | |
4595 | case DRM_FORMAT_YUV420: | |
4596 | case DRM_FORMAT_YVU420: | |
4597 | case DRM_FORMAT_NV12: | |
4598 | case DRM_FORMAT_NV21: | |
4599 | return 2; | |
4600 | default: | |
4601 | return 1; | |
4602 | } | |
4603 | } | |
4604 | EXPORT_SYMBOL(drm_format_vert_chroma_subsampling); | |
87d24fc3 LP |
4605 | |
4606 | /** | |
4607 | * drm_mode_config_init - initialize DRM mode_configuration structure | |
4608 | * @dev: DRM device | |
4609 | * | |
4610 | * Initialize @dev's mode_config structure, used for tracking the graphics | |
4611 | * configuration of @dev. | |
4612 | * | |
4613 | * Since this initializes the modeset locks, no locking is possible. Which is no | |
4614 | * problem, since this should happen single threaded at init time. It is the | |
4615 | * driver's problem to ensure this guarantee. | |
4616 | * | |
4617 | */ | |
4618 | void drm_mode_config_init(struct drm_device *dev) | |
4619 | { | |
4620 | mutex_init(&dev->mode_config.mutex); | |
4621 | mutex_init(&dev->mode_config.idr_mutex); | |
4622 | mutex_init(&dev->mode_config.fb_lock); | |
4623 | INIT_LIST_HEAD(&dev->mode_config.fb_list); | |
4624 | INIT_LIST_HEAD(&dev->mode_config.crtc_list); | |
4625 | INIT_LIST_HEAD(&dev->mode_config.connector_list); | |
3b336ec4 | 4626 | INIT_LIST_HEAD(&dev->mode_config.bridge_list); |
87d24fc3 LP |
4627 | INIT_LIST_HEAD(&dev->mode_config.encoder_list); |
4628 | INIT_LIST_HEAD(&dev->mode_config.property_list); | |
4629 | INIT_LIST_HEAD(&dev->mode_config.property_blob_list); | |
4630 | INIT_LIST_HEAD(&dev->mode_config.plane_list); | |
4631 | idr_init(&dev->mode_config.crtc_idr); | |
4632 | ||
4633 | drm_modeset_lock_all(dev); | |
4634 | drm_mode_create_standard_connector_properties(dev); | |
9922ab5a | 4635 | drm_mode_create_standard_plane_properties(dev); |
87d24fc3 LP |
4636 | drm_modeset_unlock_all(dev); |
4637 | ||
4638 | /* Just to be sure */ | |
4639 | dev->mode_config.num_fb = 0; | |
4640 | dev->mode_config.num_connector = 0; | |
4641 | dev->mode_config.num_crtc = 0; | |
4642 | dev->mode_config.num_encoder = 0; | |
e27dde3e MR |
4643 | dev->mode_config.num_overlay_plane = 0; |
4644 | dev->mode_config.num_total_plane = 0; | |
87d24fc3 LP |
4645 | } |
4646 | EXPORT_SYMBOL(drm_mode_config_init); | |
4647 | ||
4648 | /** | |
4649 | * drm_mode_config_cleanup - free up DRM mode_config info | |
4650 | * @dev: DRM device | |
4651 | * | |
4652 | * Free up all the connectors and CRTCs associated with this DRM device, then | |
4653 | * free up the framebuffers and associated buffer objects. | |
4654 | * | |
4655 | * Note that since this /should/ happen single-threaded at driver/device | |
4656 | * teardown time, no locking is required. It's the driver's job to ensure that | |
4657 | * this guarantee actually holds true. | |
4658 | * | |
4659 | * FIXME: cleanup any dangling user buffer objects too | |
4660 | */ | |
4661 | void drm_mode_config_cleanup(struct drm_device *dev) | |
4662 | { | |
4663 | struct drm_connector *connector, *ot; | |
4664 | struct drm_crtc *crtc, *ct; | |
4665 | struct drm_encoder *encoder, *enct; | |
3b336ec4 | 4666 | struct drm_bridge *bridge, *brt; |
87d24fc3 LP |
4667 | struct drm_framebuffer *fb, *fbt; |
4668 | struct drm_property *property, *pt; | |
4669 | struct drm_property_blob *blob, *bt; | |
4670 | struct drm_plane *plane, *plt; | |
4671 | ||
4672 | list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, | |
4673 | head) { | |
4674 | encoder->funcs->destroy(encoder); | |
4675 | } | |
4676 | ||
3b336ec4 SP |
4677 | list_for_each_entry_safe(bridge, brt, |
4678 | &dev->mode_config.bridge_list, head) { | |
4679 | bridge->funcs->destroy(bridge); | |
4680 | } | |
4681 | ||
87d24fc3 LP |
4682 | list_for_each_entry_safe(connector, ot, |
4683 | &dev->mode_config.connector_list, head) { | |
4684 | connector->funcs->destroy(connector); | |
4685 | } | |
4686 | ||
4687 | list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, | |
4688 | head) { | |
4689 | drm_property_destroy(dev, property); | |
4690 | } | |
4691 | ||
4692 | list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list, | |
4693 | head) { | |
4694 | drm_property_destroy_blob(dev, blob); | |
4695 | } | |
4696 | ||
4697 | /* | |
4698 | * Single-threaded teardown context, so it's not required to grab the | |
4699 | * fb_lock to protect against concurrent fb_list access. Contrary, it | |
4700 | * would actually deadlock with the drm_framebuffer_cleanup function. | |
4701 | * | |
4702 | * Also, if there are any framebuffers left, that's a driver leak now, | |
4703 | * so politely WARN about this. | |
4704 | */ | |
4705 | WARN_ON(!list_empty(&dev->mode_config.fb_list)); | |
4706 | list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { | |
4707 | drm_framebuffer_remove(fb); | |
4708 | } | |
4709 | ||
4710 | list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, | |
4711 | head) { | |
4712 | plane->funcs->destroy(plane); | |
4713 | } | |
4714 | ||
4715 | list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { | |
4716 | crtc->funcs->destroy(crtc); | |
4717 | } | |
4718 | ||
4719 | idr_destroy(&dev->mode_config.crtc_idr); | |
4720 | } | |
4721 | EXPORT_SYMBOL(drm_mode_config_cleanup); |