Commit | Line | Data |
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f453ba04 DA |
1 | /* |
2 | * Copyright (c) 2006-2008 Intel Corporation | |
3 | * Copyright (c) 2007 Dave Airlie <airlied@linux.ie> | |
4 | * Copyright (c) 2008 Red Hat Inc. | |
5 | * | |
6 | * DRM core CRTC related functions | |
7 | * | |
8 | * Permission to use, copy, modify, distribute, and sell this software and its | |
9 | * documentation for any purpose is hereby granted without fee, provided that | |
10 | * the above copyright notice appear in all copies and that both that copyright | |
11 | * notice and this permission notice appear in supporting documentation, and | |
12 | * that the name of the copyright holders not be used in advertising or | |
13 | * publicity pertaining to distribution of the software without specific, | |
14 | * written prior permission. The copyright holders make no representations | |
15 | * about the suitability of this software for any purpose. It is provided "as | |
16 | * is" without express or implied warranty. | |
17 | * | |
18 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, | |
19 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO | |
20 | * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR | |
21 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, | |
22 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER | |
23 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE | |
24 | * OF THIS SOFTWARE. | |
25 | * | |
26 | * Authors: | |
27 | * Keith Packard | |
28 | * Eric Anholt <eric@anholt.net> | |
29 | * Dave Airlie <airlied@linux.ie> | |
30 | * Jesse Barnes <jesse.barnes@intel.com> | |
31 | */ | |
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> | |
51fd371b | 40 | #include <drm/drm_modeset_lock.h> |
f453ba04 | 41 | |
8bd441b2 DV |
42 | #include "drm_crtc_internal.h" |
43 | ||
c394c2b0 MR |
44 | static struct drm_framebuffer *add_framebuffer_internal(struct drm_device *dev, |
45 | struct drm_mode_fb_cmd2 *r, | |
46 | struct drm_file *file_priv); | |
47 | ||
f453ba04 DA |
48 | /* Avoid boilerplate. I'm tired of typing. */ |
49 | #define DRM_ENUM_NAME_FN(fnname, list) \ | |
d20d3174 | 50 | const char *fnname(int val) \ |
f453ba04 DA |
51 | { \ |
52 | int i; \ | |
53 | for (i = 0; i < ARRAY_SIZE(list); i++) { \ | |
54 | if (list[i].type == val) \ | |
55 | return list[i].name; \ | |
56 | } \ | |
57 | return "(unknown)"; \ | |
58 | } | |
59 | ||
60 | /* | |
61 | * Global properties | |
62 | */ | |
d20d3174 | 63 | static const struct drm_prop_enum_list drm_dpms_enum_list[] = |
f453ba04 DA |
64 | { { DRM_MODE_DPMS_ON, "On" }, |
65 | { DRM_MODE_DPMS_STANDBY, "Standby" }, | |
66 | { DRM_MODE_DPMS_SUSPEND, "Suspend" }, | |
67 | { DRM_MODE_DPMS_OFF, "Off" } | |
68 | }; | |
69 | ||
70 | DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list) | |
71 | ||
9922ab5a RC |
72 | static const struct drm_prop_enum_list drm_plane_type_enum_list[] = |
73 | { | |
74 | { DRM_PLANE_TYPE_OVERLAY, "Overlay" }, | |
75 | { DRM_PLANE_TYPE_PRIMARY, "Primary" }, | |
76 | { DRM_PLANE_TYPE_CURSOR, "Cursor" }, | |
77 | }; | |
78 | ||
f453ba04 DA |
79 | /* |
80 | * Optional properties | |
81 | */ | |
d20d3174 | 82 | static const struct drm_prop_enum_list drm_scaling_mode_enum_list[] = |
f453ba04 | 83 | { |
53bd8389 JB |
84 | { DRM_MODE_SCALE_NONE, "None" }, |
85 | { DRM_MODE_SCALE_FULLSCREEN, "Full" }, | |
86 | { DRM_MODE_SCALE_CENTER, "Center" }, | |
87 | { DRM_MODE_SCALE_ASPECT, "Full aspect" }, | |
f453ba04 DA |
88 | }; |
89 | ||
ff587e45 VK |
90 | static const struct drm_prop_enum_list drm_aspect_ratio_enum_list[] = { |
91 | { DRM_MODE_PICTURE_ASPECT_NONE, "Automatic" }, | |
92 | { DRM_MODE_PICTURE_ASPECT_4_3, "4:3" }, | |
93 | { DRM_MODE_PICTURE_ASPECT_16_9, "16:9" }, | |
94 | }; | |
95 | ||
f453ba04 DA |
96 | /* |
97 | * Non-global properties, but "required" for certain connectors. | |
98 | */ | |
d20d3174 | 99 | static const struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = |
f453ba04 DA |
100 | { |
101 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ | |
102 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
103 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
104 | }; | |
105 | ||
106 | DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list) | |
107 | ||
d20d3174 | 108 | static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = |
f453ba04 DA |
109 | { |
110 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ | |
111 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
112 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
113 | }; | |
114 | ||
115 | DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name, | |
116 | drm_dvi_i_subconnector_enum_list) | |
117 | ||
d20d3174 | 118 | static const struct drm_prop_enum_list drm_tv_select_enum_list[] = |
f453ba04 DA |
119 | { |
120 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ | |
121 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
122 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
123 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 124 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
125 | }; |
126 | ||
127 | DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list) | |
128 | ||
d20d3174 | 129 | static const struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = |
f453ba04 DA |
130 | { |
131 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ | |
132 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
133 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
134 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 135 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
136 | }; |
137 | ||
138 | DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, | |
139 | drm_tv_subconnector_enum_list) | |
140 | ||
d20d3174 | 141 | static const struct drm_prop_enum_list drm_dirty_info_enum_list[] = { |
884840aa JB |
142 | { DRM_MODE_DIRTY_OFF, "Off" }, |
143 | { DRM_MODE_DIRTY_ON, "On" }, | |
144 | { DRM_MODE_DIRTY_ANNOTATE, "Annotate" }, | |
145 | }; | |
146 | ||
f453ba04 DA |
147 | struct drm_conn_prop_enum_list { |
148 | int type; | |
d20d3174 | 149 | const char *name; |
b21e3afe | 150 | struct ida ida; |
f453ba04 DA |
151 | }; |
152 | ||
153 | /* | |
154 | * Connector and encoder types. | |
155 | */ | |
156 | static struct drm_conn_prop_enum_list drm_connector_enum_list[] = | |
b21e3afe IM |
157 | { { DRM_MODE_CONNECTOR_Unknown, "Unknown" }, |
158 | { DRM_MODE_CONNECTOR_VGA, "VGA" }, | |
159 | { DRM_MODE_CONNECTOR_DVII, "DVI-I" }, | |
160 | { DRM_MODE_CONNECTOR_DVID, "DVI-D" }, | |
161 | { DRM_MODE_CONNECTOR_DVIA, "DVI-A" }, | |
162 | { DRM_MODE_CONNECTOR_Composite, "Composite" }, | |
163 | { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO" }, | |
164 | { DRM_MODE_CONNECTOR_LVDS, "LVDS" }, | |
165 | { DRM_MODE_CONNECTOR_Component, "Component" }, | |
166 | { DRM_MODE_CONNECTOR_9PinDIN, "DIN" }, | |
167 | { DRM_MODE_CONNECTOR_DisplayPort, "DP" }, | |
168 | { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" }, | |
169 | { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" }, | |
170 | { DRM_MODE_CONNECTOR_TV, "TV" }, | |
171 | { DRM_MODE_CONNECTOR_eDP, "eDP" }, | |
172 | { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual" }, | |
b8923273 | 173 | { DRM_MODE_CONNECTOR_DSI, "DSI" }, |
f453ba04 DA |
174 | }; |
175 | ||
d20d3174 | 176 | static const struct drm_prop_enum_list drm_encoder_enum_list[] = |
f453ba04 DA |
177 | { { DRM_MODE_ENCODER_NONE, "None" }, |
178 | { DRM_MODE_ENCODER_DAC, "DAC" }, | |
179 | { DRM_MODE_ENCODER_TMDS, "TMDS" }, | |
180 | { DRM_MODE_ENCODER_LVDS, "LVDS" }, | |
181 | { DRM_MODE_ENCODER_TVDAC, "TV" }, | |
a7331e5c | 182 | { DRM_MODE_ENCODER_VIRTUAL, "Virtual" }, |
b8923273 | 183 | { DRM_MODE_ENCODER_DSI, "DSI" }, |
182407a6 | 184 | { DRM_MODE_ENCODER_DPMST, "DP MST" }, |
f453ba04 DA |
185 | }; |
186 | ||
ac1bb36c JB |
187 | static const struct drm_prop_enum_list drm_subpixel_enum_list[] = |
188 | { | |
189 | { SubPixelUnknown, "Unknown" }, | |
190 | { SubPixelHorizontalRGB, "Horizontal RGB" }, | |
191 | { SubPixelHorizontalBGR, "Horizontal BGR" }, | |
192 | { SubPixelVerticalRGB, "Vertical RGB" }, | |
193 | { SubPixelVerticalBGR, "Vertical BGR" }, | |
194 | { SubPixelNone, "None" }, | |
195 | }; | |
196 | ||
b21e3afe IM |
197 | void drm_connector_ida_init(void) |
198 | { | |
199 | int i; | |
200 | ||
201 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) | |
202 | ida_init(&drm_connector_enum_list[i].ida); | |
203 | } | |
204 | ||
205 | void drm_connector_ida_destroy(void) | |
206 | { | |
207 | int i; | |
208 | ||
209 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) | |
210 | ida_destroy(&drm_connector_enum_list[i].ida); | |
211 | } | |
212 | ||
c8e32cc1 DV |
213 | /** |
214 | * drm_get_connector_status_name - return a string for connector status | |
215 | * @status: connector status to compute name of | |
216 | * | |
217 | * In contrast to the other drm_get_*_name functions this one here returns a | |
218 | * const pointer and hence is threadsafe. | |
219 | */ | |
d20d3174 | 220 | const char *drm_get_connector_status_name(enum drm_connector_status status) |
f453ba04 DA |
221 | { |
222 | if (status == connector_status_connected) | |
223 | return "connected"; | |
224 | else if (status == connector_status_disconnected) | |
225 | return "disconnected"; | |
226 | else | |
227 | return "unknown"; | |
228 | } | |
ed7951dc | 229 | EXPORT_SYMBOL(drm_get_connector_status_name); |
f453ba04 | 230 | |
ac1bb36c JB |
231 | /** |
232 | * drm_get_subpixel_order_name - return a string for a given subpixel enum | |
233 | * @order: enum of subpixel_order | |
234 | * | |
235 | * Note you could abuse this and return something out of bounds, but that | |
236 | * would be a caller error. No unscrubbed user data should make it here. | |
237 | */ | |
238 | const char *drm_get_subpixel_order_name(enum subpixel_order order) | |
239 | { | |
240 | return drm_subpixel_enum_list[order].name; | |
241 | } | |
242 | EXPORT_SYMBOL(drm_get_subpixel_order_name); | |
243 | ||
6ba6d03e VS |
244 | static char printable_char(int c) |
245 | { | |
246 | return isascii(c) && isprint(c) ? c : '?'; | |
247 | } | |
248 | ||
c8e32cc1 DV |
249 | /** |
250 | * drm_get_format_name - return a string for drm fourcc format | |
251 | * @format: format to compute name of | |
252 | * | |
253 | * Note that the buffer used by this function is globally shared and owned by | |
254 | * the function itself. | |
255 | * | |
256 | * FIXME: This isn't really multithreading safe. | |
257 | */ | |
d20d3174 | 258 | const char *drm_get_format_name(uint32_t format) |
6ba6d03e VS |
259 | { |
260 | static char buf[32]; | |
261 | ||
262 | snprintf(buf, sizeof(buf), | |
263 | "%c%c%c%c %s-endian (0x%08x)", | |
264 | printable_char(format & 0xff), | |
265 | printable_char((format >> 8) & 0xff), | |
266 | printable_char((format >> 16) & 0xff), | |
267 | printable_char((format >> 24) & 0x7f), | |
268 | format & DRM_FORMAT_BIG_ENDIAN ? "big" : "little", | |
269 | format); | |
270 | ||
271 | return buf; | |
272 | } | |
273 | EXPORT_SYMBOL(drm_get_format_name); | |
274 | ||
2ee39452 DA |
275 | /* |
276 | * Internal function to assign a slot in the object idr and optionally | |
277 | * register the object into the idr. | |
278 | */ | |
279 | static int drm_mode_object_get_reg(struct drm_device *dev, | |
280 | struct drm_mode_object *obj, | |
281 | uint32_t obj_type, | |
282 | bool register_obj) | |
283 | { | |
284 | int ret; | |
285 | ||
286 | mutex_lock(&dev->mode_config.idr_mutex); | |
287 | ret = idr_alloc(&dev->mode_config.crtc_idr, register_obj ? obj : NULL, 1, 0, GFP_KERNEL); | |
288 | if (ret >= 0) { | |
289 | /* | |
290 | * Set up the object linking under the protection of the idr | |
291 | * lock so that other users can't see inconsistent state. | |
292 | */ | |
293 | obj->id = ret; | |
294 | obj->type = obj_type; | |
295 | } | |
296 | mutex_unlock(&dev->mode_config.idr_mutex); | |
297 | ||
298 | return ret < 0 ? ret : 0; | |
299 | } | |
300 | ||
f453ba04 | 301 | /** |
065a50ed | 302 | * drm_mode_object_get - allocate a new modeset identifier |
f453ba04 | 303 | * @dev: DRM device |
065a50ed DV |
304 | * @obj: object pointer, used to generate unique ID |
305 | * @obj_type: object type | |
f453ba04 | 306 | * |
f453ba04 | 307 | * Create a unique identifier based on @ptr in @dev's identifier space. Used |
c8e32cc1 DV |
308 | * for tracking modes, CRTCs and connectors. Note that despite the _get postfix |
309 | * modeset identifiers are _not_ reference counted. Hence don't use this for | |
310 | * reference counted modeset objects like framebuffers. | |
f453ba04 | 311 | * |
c8e32cc1 | 312 | * Returns: |
f453ba04 DA |
313 | * New unique (relative to other objects in @dev) integer identifier for the |
314 | * object. | |
315 | */ | |
8bd441b2 DV |
316 | int drm_mode_object_get(struct drm_device *dev, |
317 | struct drm_mode_object *obj, uint32_t obj_type) | |
f453ba04 | 318 | { |
2ee39452 DA |
319 | return drm_mode_object_get_reg(dev, obj, obj_type, true); |
320 | } | |
f453ba04 | 321 | |
2ee39452 DA |
322 | static void drm_mode_object_register(struct drm_device *dev, |
323 | struct drm_mode_object *obj) | |
324 | { | |
ad2563c2 | 325 | mutex_lock(&dev->mode_config.idr_mutex); |
2ee39452 | 326 | idr_replace(&dev->mode_config.crtc_idr, obj, obj->id); |
ad2563c2 | 327 | mutex_unlock(&dev->mode_config.idr_mutex); |
f453ba04 DA |
328 | } |
329 | ||
330 | /** | |
065a50ed | 331 | * drm_mode_object_put - free a modeset identifer |
f453ba04 | 332 | * @dev: DRM device |
065a50ed | 333 | * @object: object to free |
f453ba04 | 334 | * |
c8e32cc1 DV |
335 | * Free @id from @dev's unique identifier pool. Note that despite the _get |
336 | * postfix modeset identifiers are _not_ reference counted. Hence don't use this | |
337 | * for reference counted modeset objects like framebuffers. | |
f453ba04 | 338 | */ |
8bd441b2 DV |
339 | void drm_mode_object_put(struct drm_device *dev, |
340 | struct drm_mode_object *object) | |
f453ba04 | 341 | { |
ad2563c2 | 342 | mutex_lock(&dev->mode_config.idr_mutex); |
f453ba04 | 343 | idr_remove(&dev->mode_config.crtc_idr, object->id); |
ad2563c2 | 344 | mutex_unlock(&dev->mode_config.idr_mutex); |
f453ba04 DA |
345 | } |
346 | ||
98f75de4 RC |
347 | static struct drm_mode_object *_object_find(struct drm_device *dev, |
348 | uint32_t id, uint32_t type) | |
349 | { | |
350 | struct drm_mode_object *obj = NULL; | |
351 | ||
352 | mutex_lock(&dev->mode_config.idr_mutex); | |
353 | obj = idr_find(&dev->mode_config.crtc_idr, id); | |
168c02ec DV |
354 | if (obj && type != DRM_MODE_OBJECT_ANY && obj->type != type) |
355 | obj = NULL; | |
356 | if (obj && obj->id != id) | |
357 | obj = NULL; | |
358 | /* don't leak out unref'd fb's */ | |
359 | if (obj && (obj->type == DRM_MODE_OBJECT_FB)) | |
98f75de4 RC |
360 | obj = NULL; |
361 | mutex_unlock(&dev->mode_config.idr_mutex); | |
362 | ||
363 | return obj; | |
364 | } | |
365 | ||
786b99ed DV |
366 | /** |
367 | * drm_mode_object_find - look up a drm object with static lifetime | |
368 | * @dev: drm device | |
369 | * @id: id of the mode object | |
370 | * @type: type of the mode object | |
371 | * | |
372 | * Note that framebuffers cannot be looked up with this functions - since those | |
98f75de4 RC |
373 | * are reference counted, they need special treatment. Even with |
374 | * DRM_MODE_OBJECT_ANY (although that will simply return NULL | |
375 | * rather than WARN_ON()). | |
786b99ed | 376 | */ |
7a9c9060 DV |
377 | struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, |
378 | uint32_t id, uint32_t type) | |
f453ba04 | 379 | { |
ad2563c2 | 380 | struct drm_mode_object *obj = NULL; |
f453ba04 | 381 | |
786b99ed DV |
382 | /* Framebuffers are reference counted and need their own lookup |
383 | * function.*/ | |
384 | WARN_ON(type == DRM_MODE_OBJECT_FB); | |
98f75de4 | 385 | obj = _object_find(dev, id, type); |
f453ba04 DA |
386 | return obj; |
387 | } | |
388 | EXPORT_SYMBOL(drm_mode_object_find); | |
389 | ||
f453ba04 DA |
390 | /** |
391 | * drm_framebuffer_init - initialize a framebuffer | |
392 | * @dev: DRM device | |
065a50ed DV |
393 | * @fb: framebuffer to be initialized |
394 | * @funcs: ... with these functions | |
f453ba04 | 395 | * |
f453ba04 DA |
396 | * Allocates an ID for the framebuffer's parent mode object, sets its mode |
397 | * functions & device file and adds it to the master fd list. | |
398 | * | |
4b096ac1 DV |
399 | * IMPORTANT: |
400 | * This functions publishes the fb and makes it available for concurrent access | |
401 | * by other users. Which means by this point the fb _must_ be fully set up - | |
402 | * since all the fb attributes are invariant over its lifetime, no further | |
403 | * locking but only correct reference counting is required. | |
404 | * | |
c8e32cc1 | 405 | * Returns: |
af901ca1 | 406 | * Zero on success, error code on failure. |
f453ba04 DA |
407 | */ |
408 | int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, | |
409 | const struct drm_framebuffer_funcs *funcs) | |
410 | { | |
411 | int ret; | |
412 | ||
4b096ac1 | 413 | mutex_lock(&dev->mode_config.fb_lock); |
f7eff60e | 414 | kref_init(&fb->refcount); |
4b096ac1 DV |
415 | INIT_LIST_HEAD(&fb->filp_head); |
416 | fb->dev = dev; | |
417 | fb->funcs = funcs; | |
f7eff60e | 418 | |
f453ba04 | 419 | ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB); |
6bfc56aa | 420 | if (ret) |
4b096ac1 | 421 | goto out; |
f453ba04 | 422 | |
f453ba04 DA |
423 | dev->mode_config.num_fb++; |
424 | list_add(&fb->head, &dev->mode_config.fb_list); | |
4b096ac1 DV |
425 | out: |
426 | mutex_unlock(&dev->mode_config.fb_lock); | |
f453ba04 DA |
427 | |
428 | return 0; | |
429 | } | |
430 | EXPORT_SYMBOL(drm_framebuffer_init); | |
431 | ||
83f45fc3 DV |
432 | /* dev->mode_config.fb_lock must be held! */ |
433 | static void __drm_framebuffer_unregister(struct drm_device *dev, | |
434 | struct drm_framebuffer *fb) | |
435 | { | |
436 | mutex_lock(&dev->mode_config.idr_mutex); | |
437 | idr_remove(&dev->mode_config.crtc_idr, fb->base.id); | |
438 | mutex_unlock(&dev->mode_config.idr_mutex); | |
439 | ||
440 | fb->base.id = 0; | |
441 | } | |
442 | ||
f7eff60e RC |
443 | static void drm_framebuffer_free(struct kref *kref) |
444 | { | |
445 | struct drm_framebuffer *fb = | |
446 | container_of(kref, struct drm_framebuffer, refcount); | |
83f45fc3 DV |
447 | struct drm_device *dev = fb->dev; |
448 | ||
449 | /* | |
450 | * The lookup idr holds a weak reference, which has not necessarily been | |
451 | * removed at this point. Check for that. | |
452 | */ | |
453 | mutex_lock(&dev->mode_config.fb_lock); | |
454 | if (fb->base.id) { | |
455 | /* Mark fb as reaped and drop idr ref. */ | |
456 | __drm_framebuffer_unregister(dev, fb); | |
457 | } | |
458 | mutex_unlock(&dev->mode_config.fb_lock); | |
459 | ||
f7eff60e RC |
460 | fb->funcs->destroy(fb); |
461 | } | |
462 | ||
2b677e8c DV |
463 | static struct drm_framebuffer *__drm_framebuffer_lookup(struct drm_device *dev, |
464 | uint32_t id) | |
465 | { | |
466 | struct drm_mode_object *obj = NULL; | |
467 | struct drm_framebuffer *fb; | |
468 | ||
469 | mutex_lock(&dev->mode_config.idr_mutex); | |
470 | obj = idr_find(&dev->mode_config.crtc_idr, id); | |
471 | if (!obj || (obj->type != DRM_MODE_OBJECT_FB) || (obj->id != id)) | |
472 | fb = NULL; | |
473 | else | |
474 | fb = obj_to_fb(obj); | |
475 | mutex_unlock(&dev->mode_config.idr_mutex); | |
476 | ||
477 | return fb; | |
478 | } | |
479 | ||
786b99ed DV |
480 | /** |
481 | * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference | |
482 | * @dev: drm device | |
483 | * @id: id of the fb object | |
484 | * | |
485 | * If successful, this grabs an additional reference to the framebuffer - | |
486 | * callers need to make sure to eventually unreference the returned framebuffer | |
c8e32cc1 | 487 | * again, using @drm_framebuffer_unreference. |
786b99ed DV |
488 | */ |
489 | struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev, | |
490 | uint32_t id) | |
491 | { | |
786b99ed DV |
492 | struct drm_framebuffer *fb; |
493 | ||
494 | mutex_lock(&dev->mode_config.fb_lock); | |
2b677e8c | 495 | fb = __drm_framebuffer_lookup(dev, id); |
83f45fc3 DV |
496 | if (fb) { |
497 | if (!kref_get_unless_zero(&fb->refcount)) | |
498 | fb = NULL; | |
499 | } | |
786b99ed DV |
500 | mutex_unlock(&dev->mode_config.fb_lock); |
501 | ||
502 | return fb; | |
503 | } | |
504 | EXPORT_SYMBOL(drm_framebuffer_lookup); | |
505 | ||
f7eff60e RC |
506 | /** |
507 | * drm_framebuffer_unreference - unref a framebuffer | |
065a50ed DV |
508 | * @fb: framebuffer to unref |
509 | * | |
510 | * This functions decrements the fb's refcount and frees it if it drops to zero. | |
f7eff60e RC |
511 | */ |
512 | void drm_framebuffer_unreference(struct drm_framebuffer *fb) | |
513 | { | |
8291272a | 514 | DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); |
f7eff60e RC |
515 | kref_put(&fb->refcount, drm_framebuffer_free); |
516 | } | |
517 | EXPORT_SYMBOL(drm_framebuffer_unreference); | |
518 | ||
519 | /** | |
520 | * drm_framebuffer_reference - incr the fb refcnt | |
065a50ed | 521 | * @fb: framebuffer |
c8e32cc1 DV |
522 | * |
523 | * This functions increments the fb's refcount. | |
f7eff60e RC |
524 | */ |
525 | void drm_framebuffer_reference(struct drm_framebuffer *fb) | |
526 | { | |
8291272a | 527 | DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); |
f7eff60e RC |
528 | kref_get(&fb->refcount); |
529 | } | |
530 | EXPORT_SYMBOL(drm_framebuffer_reference); | |
531 | ||
2b677e8c DV |
532 | static void drm_framebuffer_free_bug(struct kref *kref) |
533 | { | |
534 | BUG(); | |
535 | } | |
536 | ||
6c2a7532 DV |
537 | static void __drm_framebuffer_unreference(struct drm_framebuffer *fb) |
538 | { | |
8291272a | 539 | DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); |
6c2a7532 DV |
540 | kref_put(&fb->refcount, drm_framebuffer_free_bug); |
541 | } | |
542 | ||
36206361 DV |
543 | /** |
544 | * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr | |
545 | * @fb: fb to unregister | |
546 | * | |
547 | * Drivers need to call this when cleaning up driver-private framebuffers, e.g. | |
548 | * those used for fbdev. Note that the caller must hold a reference of it's own, | |
549 | * i.e. the object may not be destroyed through this call (since it'll lead to a | |
550 | * locking inversion). | |
551 | */ | |
552 | void drm_framebuffer_unregister_private(struct drm_framebuffer *fb) | |
553 | { | |
2b677e8c DV |
554 | struct drm_device *dev = fb->dev; |
555 | ||
556 | mutex_lock(&dev->mode_config.fb_lock); | |
557 | /* Mark fb as reaped and drop idr ref. */ | |
558 | __drm_framebuffer_unregister(dev, fb); | |
559 | mutex_unlock(&dev->mode_config.fb_lock); | |
36206361 DV |
560 | } |
561 | EXPORT_SYMBOL(drm_framebuffer_unregister_private); | |
562 | ||
f453ba04 DA |
563 | /** |
564 | * drm_framebuffer_cleanup - remove a framebuffer object | |
565 | * @fb: framebuffer to remove | |
566 | * | |
c8e32cc1 DV |
567 | * Cleanup framebuffer. This function is intended to be used from the drivers |
568 | * ->destroy callback. It can also be used to clean up driver private | |
569 | * framebuffers embedded into a larger structure. | |
36206361 DV |
570 | * |
571 | * Note that this function does not remove the fb from active usuage - if it is | |
572 | * still used anywhere, hilarity can ensue since userspace could call getfb on | |
573 | * the id and get back -EINVAL. Obviously no concern at driver unload time. | |
574 | * | |
575 | * Also, the framebuffer will not be removed from the lookup idr - for | |
576 | * user-created framebuffers this will happen in in the rmfb ioctl. For | |
577 | * driver-private objects (e.g. for fbdev) drivers need to explicitly call | |
578 | * drm_framebuffer_unregister_private. | |
f453ba04 DA |
579 | */ |
580 | void drm_framebuffer_cleanup(struct drm_framebuffer *fb) | |
f7eff60e RC |
581 | { |
582 | struct drm_device *dev = fb->dev; | |
8faf6b18 | 583 | |
4b096ac1 | 584 | mutex_lock(&dev->mode_config.fb_lock); |
f7eff60e RC |
585 | list_del(&fb->head); |
586 | dev->mode_config.num_fb--; | |
4b096ac1 | 587 | mutex_unlock(&dev->mode_config.fb_lock); |
f7eff60e RC |
588 | } |
589 | EXPORT_SYMBOL(drm_framebuffer_cleanup); | |
590 | ||
591 | /** | |
592 | * drm_framebuffer_remove - remove and unreference a framebuffer object | |
593 | * @fb: framebuffer to remove | |
594 | * | |
f7eff60e | 595 | * Scans all the CRTCs and planes in @dev's mode_config. If they're |
36206361 | 596 | * using @fb, removes it, setting it to NULL. Then drops the reference to the |
b62584e3 DV |
597 | * passed-in framebuffer. Might take the modeset locks. |
598 | * | |
599 | * Note that this function optimizes the cleanup away if the caller holds the | |
600 | * last reference to the framebuffer. It is also guaranteed to not take the | |
601 | * modeset locks in this case. | |
f7eff60e RC |
602 | */ |
603 | void drm_framebuffer_remove(struct drm_framebuffer *fb) | |
f453ba04 DA |
604 | { |
605 | struct drm_device *dev = fb->dev; | |
606 | struct drm_crtc *crtc; | |
8cf5c917 | 607 | struct drm_plane *plane; |
5ef5f72f DA |
608 | struct drm_mode_set set; |
609 | int ret; | |
f453ba04 | 610 | |
4b096ac1 | 611 | WARN_ON(!list_empty(&fb->filp_head)); |
8faf6b18 | 612 | |
b62584e3 DV |
613 | /* |
614 | * drm ABI mandates that we remove any deleted framebuffers from active | |
615 | * useage. But since most sane clients only remove framebuffers they no | |
616 | * longer need, try to optimize this away. | |
617 | * | |
618 | * Since we're holding a reference ourselves, observing a refcount of 1 | |
619 | * means that we're the last holder and can skip it. Also, the refcount | |
620 | * can never increase from 1 again, so we don't need any barriers or | |
621 | * locks. | |
622 | * | |
623 | * Note that userspace could try to race with use and instate a new | |
624 | * usage _after_ we've cleared all current ones. End result will be an | |
625 | * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot | |
626 | * in this manner. | |
627 | */ | |
628 | if (atomic_read(&fb->refcount.refcount) > 1) { | |
629 | drm_modeset_lock_all(dev); | |
630 | /* remove from any CRTC */ | |
631 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
f4510a27 | 632 | if (crtc->primary->fb == fb) { |
b62584e3 DV |
633 | /* should turn off the crtc */ |
634 | memset(&set, 0, sizeof(struct drm_mode_set)); | |
635 | set.crtc = crtc; | |
636 | set.fb = NULL; | |
637 | ret = drm_mode_set_config_internal(&set); | |
638 | if (ret) | |
639 | DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc); | |
640 | } | |
5ef5f72f | 641 | } |
f453ba04 | 642 | |
b62584e3 | 643 | list_for_each_entry(plane, &dev->mode_config.plane_list, head) { |
9125e618 VS |
644 | if (plane->fb == fb) |
645 | drm_plane_force_disable(plane); | |
8cf5c917 | 646 | } |
b62584e3 | 647 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
648 | } |
649 | ||
f7eff60e | 650 | drm_framebuffer_unreference(fb); |
f453ba04 | 651 | } |
f7eff60e | 652 | EXPORT_SYMBOL(drm_framebuffer_remove); |
f453ba04 | 653 | |
51fd371b RC |
654 | DEFINE_WW_CLASS(crtc_ww_class); |
655 | ||
f453ba04 | 656 | /** |
e13161af MR |
657 | * drm_crtc_init_with_planes - Initialise a new CRTC object with |
658 | * specified primary and cursor planes. | |
f453ba04 DA |
659 | * @dev: DRM device |
660 | * @crtc: CRTC object to init | |
e13161af MR |
661 | * @primary: Primary plane for CRTC |
662 | * @cursor: Cursor plane for CRTC | |
f453ba04 DA |
663 | * @funcs: callbacks for the new CRTC |
664 | * | |
ad6f5c34 | 665 | * Inits a new object created as base part of a driver crtc object. |
6bfc56aa | 666 | * |
c8e32cc1 | 667 | * Returns: |
6bfc56aa | 668 | * Zero on success, error code on failure. |
f453ba04 | 669 | */ |
e13161af MR |
670 | int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, |
671 | struct drm_plane *primary, | |
fc1d3e44 | 672 | struct drm_plane *cursor, |
e13161af | 673 | const struct drm_crtc_funcs *funcs) |
f453ba04 | 674 | { |
51fd371b | 675 | struct drm_mode_config *config = &dev->mode_config; |
6bfc56aa VS |
676 | int ret; |
677 | ||
f453ba04 DA |
678 | crtc->dev = dev; |
679 | crtc->funcs = funcs; | |
7c80e128 | 680 | crtc->invert_dimensions = false; |
f453ba04 | 681 | |
84849903 | 682 | drm_modeset_lock_all(dev); |
51fd371b RC |
683 | drm_modeset_lock_init(&crtc->mutex); |
684 | /* dropped by _unlock_all(): */ | |
685 | drm_modeset_lock(&crtc->mutex, config->acquire_ctx); | |
6bfc56aa VS |
686 | |
687 | ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); | |
688 | if (ret) | |
689 | goto out; | |
f453ba04 | 690 | |
bffd9de0 PZ |
691 | crtc->base.properties = &crtc->properties; |
692 | ||
51fd371b RC |
693 | list_add_tail(&crtc->head, &config->crtc_list); |
694 | config->num_crtc++; | |
6bfc56aa | 695 | |
e13161af | 696 | crtc->primary = primary; |
fc1d3e44 | 697 | crtc->cursor = cursor; |
e13161af MR |
698 | if (primary) |
699 | primary->possible_crtcs = 1 << drm_crtc_index(crtc); | |
fc1d3e44 MR |
700 | if (cursor) |
701 | cursor->possible_crtcs = 1 << drm_crtc_index(crtc); | |
e13161af | 702 | |
6bfc56aa | 703 | out: |
84849903 | 704 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
705 | |
706 | return ret; | |
f453ba04 | 707 | } |
e13161af | 708 | EXPORT_SYMBOL(drm_crtc_init_with_planes); |
f453ba04 DA |
709 | |
710 | /** | |
ad6f5c34 | 711 | * drm_crtc_cleanup - Clean up the core crtc usage |
f453ba04 DA |
712 | * @crtc: CRTC to cleanup |
713 | * | |
ad6f5c34 VS |
714 | * This function cleans up @crtc and removes it from the DRM mode setting |
715 | * core. Note that the function does *not* free the crtc structure itself, | |
716 | * this is the responsibility of the caller. | |
f453ba04 DA |
717 | */ |
718 | void drm_crtc_cleanup(struct drm_crtc *crtc) | |
719 | { | |
720 | struct drm_device *dev = crtc->dev; | |
721 | ||
9e1c156f SK |
722 | kfree(crtc->gamma_store); |
723 | crtc->gamma_store = NULL; | |
f453ba04 | 724 | |
51fd371b RC |
725 | drm_modeset_lock_fini(&crtc->mutex); |
726 | ||
f453ba04 DA |
727 | drm_mode_object_put(dev, &crtc->base); |
728 | list_del(&crtc->head); | |
729 | dev->mode_config.num_crtc--; | |
730 | } | |
731 | EXPORT_SYMBOL(drm_crtc_cleanup); | |
732 | ||
db5f7a6e RK |
733 | /** |
734 | * drm_crtc_index - find the index of a registered CRTC | |
735 | * @crtc: CRTC to find index for | |
736 | * | |
737 | * Given a registered CRTC, return the index of that CRTC within a DRM | |
738 | * device's list of CRTCs. | |
739 | */ | |
740 | unsigned int drm_crtc_index(struct drm_crtc *crtc) | |
741 | { | |
742 | unsigned int index = 0; | |
743 | struct drm_crtc *tmp; | |
744 | ||
745 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) { | |
746 | if (tmp == crtc) | |
747 | return index; | |
748 | ||
749 | index++; | |
750 | } | |
751 | ||
752 | BUG(); | |
753 | } | |
754 | EXPORT_SYMBOL(drm_crtc_index); | |
755 | ||
86f422d5 | 756 | /* |
f453ba04 DA |
757 | * drm_mode_remove - remove and free a mode |
758 | * @connector: connector list to modify | |
759 | * @mode: mode to remove | |
760 | * | |
f453ba04 DA |
761 | * Remove @mode from @connector's mode list, then free it. |
762 | */ | |
86f422d5 LD |
763 | static void drm_mode_remove(struct drm_connector *connector, |
764 | struct drm_display_mode *mode) | |
f453ba04 DA |
765 | { |
766 | list_del(&mode->head); | |
554f1d78 | 767 | drm_mode_destroy(connector->dev, mode); |
f453ba04 | 768 | } |
f453ba04 | 769 | |
eaf99c74 CW |
770 | /** |
771 | * drm_connector_get_cmdline_mode - reads the user's cmdline mode | |
772 | * @connector: connector to quwery | |
773 | * @mode: returned mode | |
774 | * | |
775 | * The kernel supports per-connector configration of its consoles through | |
776 | * use of the video= parameter. This function parses that option and | |
777 | * extracts the user's specified mode (or enable/disable status) for a | |
778 | * particular connector. This is typically only used during the early fbdev | |
779 | * setup. | |
780 | */ | |
781 | static void drm_connector_get_cmdline_mode(struct drm_connector *connector) | |
782 | { | |
783 | struct drm_cmdline_mode *mode = &connector->cmdline_mode; | |
784 | char *option = NULL; | |
785 | ||
786 | if (fb_get_options(connector->name, &option)) | |
787 | return; | |
788 | ||
789 | if (!drm_mode_parse_command_line_for_connector(option, | |
790 | connector, | |
791 | mode)) | |
792 | return; | |
793 | ||
794 | if (mode->force) { | |
795 | const char *s; | |
796 | ||
797 | switch (mode->force) { | |
798 | case DRM_FORCE_OFF: | |
799 | s = "OFF"; | |
800 | break; | |
801 | case DRM_FORCE_ON_DIGITAL: | |
802 | s = "ON - dig"; | |
803 | break; | |
804 | default: | |
805 | case DRM_FORCE_ON: | |
806 | s = "ON"; | |
807 | break; | |
808 | } | |
809 | ||
810 | DRM_INFO("forcing %s connector %s\n", connector->name, s); | |
811 | connector->force = mode->force; | |
812 | } | |
813 | ||
814 | DRM_DEBUG_KMS("cmdline mode for connector %s %dx%d@%dHz%s%s%s\n", | |
815 | connector->name, | |
816 | mode->xres, mode->yres, | |
817 | mode->refresh_specified ? mode->refresh : 60, | |
818 | mode->rb ? " reduced blanking" : "", | |
819 | mode->margins ? " with margins" : "", | |
820 | mode->interlace ? " interlaced" : ""); | |
821 | } | |
822 | ||
f453ba04 DA |
823 | /** |
824 | * drm_connector_init - Init a preallocated connector | |
825 | * @dev: DRM device | |
826 | * @connector: the connector to init | |
827 | * @funcs: callbacks for this connector | |
065a50ed | 828 | * @connector_type: user visible type of the connector |
f453ba04 | 829 | * |
f453ba04 DA |
830 | * Initialises a preallocated connector. Connectors should be |
831 | * subclassed as part of driver connector objects. | |
6bfc56aa | 832 | * |
c8e32cc1 | 833 | * Returns: |
6bfc56aa | 834 | * Zero on success, error code on failure. |
f453ba04 | 835 | */ |
6bfc56aa VS |
836 | int drm_connector_init(struct drm_device *dev, |
837 | struct drm_connector *connector, | |
838 | const struct drm_connector_funcs *funcs, | |
839 | int connector_type) | |
f453ba04 | 840 | { |
6bfc56aa | 841 | int ret; |
b21e3afe IM |
842 | struct ida *connector_ida = |
843 | &drm_connector_enum_list[connector_type].ida; | |
6bfc56aa | 844 | |
84849903 | 845 | drm_modeset_lock_all(dev); |
f453ba04 | 846 | |
2ee39452 | 847 | ret = drm_mode_object_get_reg(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR, false); |
6bfc56aa | 848 | if (ret) |
2abdd313 | 849 | goto out_unlock; |
6bfc56aa | 850 | |
7e3bdf4a | 851 | connector->base.properties = &connector->properties; |
f453ba04 DA |
852 | connector->dev = dev; |
853 | connector->funcs = funcs; | |
f453ba04 DA |
854 | connector->connector_type = connector_type; |
855 | connector->connector_type_id = | |
b21e3afe IM |
856 | ida_simple_get(connector_ida, 1, 0, GFP_KERNEL); |
857 | if (connector->connector_type_id < 0) { | |
858 | ret = connector->connector_type_id; | |
2abdd313 | 859 | goto out_put; |
b21e3afe | 860 | } |
2abdd313 JN |
861 | connector->name = |
862 | kasprintf(GFP_KERNEL, "%s-%d", | |
863 | drm_connector_enum_list[connector_type].name, | |
864 | connector->connector_type_id); | |
865 | if (!connector->name) { | |
866 | ret = -ENOMEM; | |
867 | goto out_put; | |
868 | } | |
869 | ||
f453ba04 DA |
870 | INIT_LIST_HEAD(&connector->probed_modes); |
871 | INIT_LIST_HEAD(&connector->modes); | |
872 | connector->edid_blob_ptr = NULL; | |
5e2cb2f6 | 873 | connector->status = connector_status_unknown; |
f453ba04 | 874 | |
eaf99c74 CW |
875 | drm_connector_get_cmdline_mode(connector); |
876 | ||
f453ba04 DA |
877 | list_add_tail(&connector->head, &dev->mode_config.connector_list); |
878 | dev->mode_config.num_connector++; | |
879 | ||
a7331e5c | 880 | if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL) |
58495563 | 881 | drm_object_attach_property(&connector->base, |
a7331e5c TH |
882 | dev->mode_config.edid_property, |
883 | 0); | |
f453ba04 | 884 | |
58495563 | 885 | drm_object_attach_property(&connector->base, |
f453ba04 DA |
886 | dev->mode_config.dpms_property, 0); |
887 | ||
30f65707 TW |
888 | connector->debugfs_entry = NULL; |
889 | ||
2abdd313 JN |
890 | out_put: |
891 | if (ret) | |
892 | drm_mode_object_put(dev, &connector->base); | |
893 | ||
894 | out_unlock: | |
84849903 | 895 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
896 | |
897 | return ret; | |
f453ba04 DA |
898 | } |
899 | EXPORT_SYMBOL(drm_connector_init); | |
900 | ||
901 | /** | |
902 | * drm_connector_cleanup - cleans up an initialised connector | |
903 | * @connector: connector to cleanup | |
904 | * | |
f453ba04 DA |
905 | * Cleans up the connector but doesn't free the object. |
906 | */ | |
907 | void drm_connector_cleanup(struct drm_connector *connector) | |
908 | { | |
909 | struct drm_device *dev = connector->dev; | |
910 | struct drm_display_mode *mode, *t; | |
911 | ||
912 | list_for_each_entry_safe(mode, t, &connector->probed_modes, head) | |
913 | drm_mode_remove(connector, mode); | |
914 | ||
915 | list_for_each_entry_safe(mode, t, &connector->modes, head) | |
916 | drm_mode_remove(connector, mode); | |
917 | ||
b21e3afe IM |
918 | ida_remove(&drm_connector_enum_list[connector->connector_type].ida, |
919 | connector->connector_type_id); | |
920 | ||
f453ba04 | 921 | drm_mode_object_put(dev, &connector->base); |
2abdd313 JN |
922 | kfree(connector->name); |
923 | connector->name = NULL; | |
f453ba04 | 924 | list_del(&connector->head); |
6380c509 | 925 | dev->mode_config.num_connector--; |
f453ba04 DA |
926 | } |
927 | EXPORT_SYMBOL(drm_connector_cleanup); | |
928 | ||
10f637bf DV |
929 | /** |
930 | * drm_connector_index - find the index of a registered connector | |
931 | * @connector: connector to find index for | |
932 | * | |
933 | * Given a registered connector, return the index of that connector within a DRM | |
934 | * device's list of connectors. | |
935 | */ | |
936 | unsigned int drm_connector_index(struct drm_connector *connector) | |
937 | { | |
938 | unsigned int index = 0; | |
939 | struct drm_connector *tmp; | |
940 | ||
941 | list_for_each_entry(tmp, &connector->dev->mode_config.connector_list, head) { | |
942 | if (tmp == connector) | |
943 | return index; | |
944 | ||
945 | index++; | |
946 | } | |
947 | ||
948 | BUG(); | |
949 | } | |
950 | EXPORT_SYMBOL(drm_connector_index); | |
951 | ||
34ea3d38 TW |
952 | /** |
953 | * drm_connector_register - register a connector | |
954 | * @connector: the connector to register | |
955 | * | |
956 | * Register userspace interfaces for a connector | |
957 | * | |
958 | * Returns: | |
959 | * Zero on success, error code on failure. | |
960 | */ | |
961 | int drm_connector_register(struct drm_connector *connector) | |
962 | { | |
30f65707 TW |
963 | int ret; |
964 | ||
2ee39452 DA |
965 | drm_mode_object_register(connector->dev, &connector->base); |
966 | ||
30f65707 TW |
967 | ret = drm_sysfs_connector_add(connector); |
968 | if (ret) | |
969 | return ret; | |
970 | ||
971 | ret = drm_debugfs_connector_add(connector); | |
972 | if (ret) { | |
973 | drm_sysfs_connector_remove(connector); | |
974 | return ret; | |
975 | } | |
976 | ||
977 | return 0; | |
34ea3d38 TW |
978 | } |
979 | EXPORT_SYMBOL(drm_connector_register); | |
980 | ||
981 | /** | |
982 | * drm_connector_unregister - unregister a connector | |
983 | * @connector: the connector to unregister | |
984 | * | |
985 | * Unregister userspace interfaces for a connector | |
986 | */ | |
987 | void drm_connector_unregister(struct drm_connector *connector) | |
988 | { | |
989 | drm_sysfs_connector_remove(connector); | |
30f65707 | 990 | drm_debugfs_connector_remove(connector); |
34ea3d38 TW |
991 | } |
992 | EXPORT_SYMBOL(drm_connector_unregister); | |
993 | ||
994 | ||
c8e32cc1 DV |
995 | /** |
996 | * drm_connector_unplug_all - unregister connector userspace interfaces | |
997 | * @dev: drm device | |
998 | * | |
999 | * This function unregisters all connector userspace interfaces in sysfs. Should | |
1000 | * be call when the device is disconnected, e.g. from an usb driver's | |
1001 | * ->disconnect callback. | |
1002 | */ | |
cbc7e221 DA |
1003 | void drm_connector_unplug_all(struct drm_device *dev) |
1004 | { | |
1005 | struct drm_connector *connector; | |
1006 | ||
1007 | /* taking the mode config mutex ends up in a clash with sysfs */ | |
1008 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) | |
34ea3d38 | 1009 | drm_connector_unregister(connector); |
cbc7e221 DA |
1010 | |
1011 | } | |
1012 | EXPORT_SYMBOL(drm_connector_unplug_all); | |
1013 | ||
c8e32cc1 DV |
1014 | /** |
1015 | * drm_bridge_init - initialize a drm transcoder/bridge | |
1016 | * @dev: drm device | |
1017 | * @bridge: transcoder/bridge to set up | |
1018 | * @funcs: bridge function table | |
1019 | * | |
1020 | * Initialises a preallocated bridge. Bridges should be | |
1021 | * subclassed as part of driver connector objects. | |
1022 | * | |
1023 | * Returns: | |
1024 | * Zero on success, error code on failure. | |
1025 | */ | |
3b336ec4 SP |
1026 | int drm_bridge_init(struct drm_device *dev, struct drm_bridge *bridge, |
1027 | const struct drm_bridge_funcs *funcs) | |
1028 | { | |
1029 | int ret; | |
1030 | ||
1031 | drm_modeset_lock_all(dev); | |
1032 | ||
1033 | ret = drm_mode_object_get(dev, &bridge->base, DRM_MODE_OBJECT_BRIDGE); | |
1034 | if (ret) | |
1035 | goto out; | |
1036 | ||
1037 | bridge->dev = dev; | |
1038 | bridge->funcs = funcs; | |
1039 | ||
1040 | list_add_tail(&bridge->head, &dev->mode_config.bridge_list); | |
1041 | dev->mode_config.num_bridge++; | |
1042 | ||
1043 | out: | |
1044 | drm_modeset_unlock_all(dev); | |
1045 | return ret; | |
1046 | } | |
1047 | EXPORT_SYMBOL(drm_bridge_init); | |
1048 | ||
c8e32cc1 DV |
1049 | /** |
1050 | * drm_bridge_cleanup - cleans up an initialised bridge | |
1051 | * @bridge: bridge to cleanup | |
1052 | * | |
1053 | * Cleans up the bridge but doesn't free the object. | |
1054 | */ | |
3b336ec4 SP |
1055 | void drm_bridge_cleanup(struct drm_bridge *bridge) |
1056 | { | |
1057 | struct drm_device *dev = bridge->dev; | |
1058 | ||
1059 | drm_modeset_lock_all(dev); | |
1060 | drm_mode_object_put(dev, &bridge->base); | |
1061 | list_del(&bridge->head); | |
1062 | dev->mode_config.num_bridge--; | |
1063 | drm_modeset_unlock_all(dev); | |
1064 | } | |
1065 | EXPORT_SYMBOL(drm_bridge_cleanup); | |
1066 | ||
c8e32cc1 DV |
1067 | /** |
1068 | * drm_encoder_init - Init a preallocated encoder | |
1069 | * @dev: drm device | |
1070 | * @encoder: the encoder to init | |
1071 | * @funcs: callbacks for this encoder | |
1072 | * @encoder_type: user visible type of the encoder | |
1073 | * | |
1074 | * Initialises a preallocated encoder. Encoder should be | |
1075 | * subclassed as part of driver encoder objects. | |
1076 | * | |
1077 | * Returns: | |
1078 | * Zero on success, error code on failure. | |
1079 | */ | |
6bfc56aa | 1080 | int drm_encoder_init(struct drm_device *dev, |
cbc7e221 DA |
1081 | struct drm_encoder *encoder, |
1082 | const struct drm_encoder_funcs *funcs, | |
1083 | int encoder_type) | |
f453ba04 | 1084 | { |
6bfc56aa VS |
1085 | int ret; |
1086 | ||
84849903 | 1087 | drm_modeset_lock_all(dev); |
f453ba04 | 1088 | |
6bfc56aa VS |
1089 | ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); |
1090 | if (ret) | |
e5748946 | 1091 | goto out_unlock; |
f453ba04 | 1092 | |
6bfc56aa | 1093 | encoder->dev = dev; |
f453ba04 DA |
1094 | encoder->encoder_type = encoder_type; |
1095 | encoder->funcs = funcs; | |
e5748946 JN |
1096 | encoder->name = kasprintf(GFP_KERNEL, "%s-%d", |
1097 | drm_encoder_enum_list[encoder_type].name, | |
1098 | encoder->base.id); | |
1099 | if (!encoder->name) { | |
1100 | ret = -ENOMEM; | |
1101 | goto out_put; | |
1102 | } | |
f453ba04 DA |
1103 | |
1104 | list_add_tail(&encoder->head, &dev->mode_config.encoder_list); | |
1105 | dev->mode_config.num_encoder++; | |
1106 | ||
e5748946 JN |
1107 | out_put: |
1108 | if (ret) | |
1109 | drm_mode_object_put(dev, &encoder->base); | |
1110 | ||
1111 | out_unlock: | |
84849903 | 1112 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
1113 | |
1114 | return ret; | |
f453ba04 DA |
1115 | } |
1116 | EXPORT_SYMBOL(drm_encoder_init); | |
1117 | ||
c8e32cc1 DV |
1118 | /** |
1119 | * drm_encoder_cleanup - cleans up an initialised encoder | |
1120 | * @encoder: encoder to cleanup | |
1121 | * | |
1122 | * Cleans up the encoder but doesn't free the object. | |
1123 | */ | |
f453ba04 DA |
1124 | void drm_encoder_cleanup(struct drm_encoder *encoder) |
1125 | { | |
1126 | struct drm_device *dev = encoder->dev; | |
84849903 | 1127 | drm_modeset_lock_all(dev); |
f453ba04 | 1128 | drm_mode_object_put(dev, &encoder->base); |
e5748946 JN |
1129 | kfree(encoder->name); |
1130 | encoder->name = NULL; | |
f453ba04 | 1131 | list_del(&encoder->head); |
6380c509 | 1132 | dev->mode_config.num_encoder--; |
84849903 | 1133 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1134 | } |
1135 | EXPORT_SYMBOL(drm_encoder_cleanup); | |
1136 | ||
35f2c3ae | 1137 | /** |
dc415ff9 | 1138 | * drm_universal_plane_init - Initialize a new universal plane object |
35f2c3ae VS |
1139 | * @dev: DRM device |
1140 | * @plane: plane object to init | |
1141 | * @possible_crtcs: bitmask of possible CRTCs | |
1142 | * @funcs: callbacks for the new plane | |
1143 | * @formats: array of supported formats (%DRM_FORMAT_*) | |
1144 | * @format_count: number of elements in @formats | |
dc415ff9 | 1145 | * @type: type of plane (overlay, primary, cursor) |
35f2c3ae | 1146 | * |
dc415ff9 | 1147 | * Initializes a plane object of type @type. |
35f2c3ae | 1148 | * |
c8e32cc1 | 1149 | * Returns: |
35f2c3ae VS |
1150 | * Zero on success, error code on failure. |
1151 | */ | |
dc415ff9 MR |
1152 | int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane, |
1153 | unsigned long possible_crtcs, | |
1154 | const struct drm_plane_funcs *funcs, | |
1155 | const uint32_t *formats, uint32_t format_count, | |
1156 | enum drm_plane_type type) | |
8cf5c917 | 1157 | { |
6bfc56aa VS |
1158 | int ret; |
1159 | ||
84849903 | 1160 | drm_modeset_lock_all(dev); |
8cf5c917 | 1161 | |
6bfc56aa VS |
1162 | ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); |
1163 | if (ret) | |
1164 | goto out; | |
1165 | ||
4d93914a | 1166 | plane->base.properties = &plane->properties; |
8cf5c917 | 1167 | plane->dev = dev; |
8cf5c917 JB |
1168 | plane->funcs = funcs; |
1169 | plane->format_types = kmalloc(sizeof(uint32_t) * format_count, | |
1170 | GFP_KERNEL); | |
1171 | if (!plane->format_types) { | |
1172 | DRM_DEBUG_KMS("out of memory when allocating plane\n"); | |
1173 | drm_mode_object_put(dev, &plane->base); | |
6bfc56aa VS |
1174 | ret = -ENOMEM; |
1175 | goto out; | |
8cf5c917 JB |
1176 | } |
1177 | ||
308e5bcb | 1178 | memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); |
8cf5c917 JB |
1179 | plane->format_count = format_count; |
1180 | plane->possible_crtcs = possible_crtcs; | |
dc415ff9 | 1181 | plane->type = type; |
8cf5c917 | 1182 | |
dc415ff9 MR |
1183 | list_add_tail(&plane->head, &dev->mode_config.plane_list); |
1184 | dev->mode_config.num_total_plane++; | |
1185 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) | |
1186 | dev->mode_config.num_overlay_plane++; | |
8cf5c917 | 1187 | |
9922ab5a RC |
1188 | drm_object_attach_property(&plane->base, |
1189 | dev->mode_config.plane_type_property, | |
1190 | plane->type); | |
1191 | ||
6bfc56aa | 1192 | out: |
84849903 | 1193 | drm_modeset_unlock_all(dev); |
8cf5c917 | 1194 | |
6bfc56aa | 1195 | return ret; |
8cf5c917 | 1196 | } |
dc415ff9 MR |
1197 | EXPORT_SYMBOL(drm_universal_plane_init); |
1198 | ||
1199 | /** | |
1200 | * drm_plane_init - Initialize a legacy plane | |
1201 | * @dev: DRM device | |
1202 | * @plane: plane object to init | |
1203 | * @possible_crtcs: bitmask of possible CRTCs | |
1204 | * @funcs: callbacks for the new plane | |
1205 | * @formats: array of supported formats (%DRM_FORMAT_*) | |
1206 | * @format_count: number of elements in @formats | |
1207 | * @is_primary: plane type (primary vs overlay) | |
1208 | * | |
1209 | * Legacy API to initialize a DRM plane. | |
1210 | * | |
1211 | * New drivers should call drm_universal_plane_init() instead. | |
1212 | * | |
1213 | * Returns: | |
1214 | * Zero on success, error code on failure. | |
1215 | */ | |
1216 | int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, | |
1217 | unsigned long possible_crtcs, | |
1218 | const struct drm_plane_funcs *funcs, | |
1219 | const uint32_t *formats, uint32_t format_count, | |
1220 | bool is_primary) | |
1221 | { | |
1222 | enum drm_plane_type type; | |
1223 | ||
1224 | type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY; | |
1225 | return drm_universal_plane_init(dev, plane, possible_crtcs, funcs, | |
1226 | formats, format_count, type); | |
1227 | } | |
8cf5c917 JB |
1228 | EXPORT_SYMBOL(drm_plane_init); |
1229 | ||
35f2c3ae VS |
1230 | /** |
1231 | * drm_plane_cleanup - Clean up the core plane usage | |
1232 | * @plane: plane to cleanup | |
1233 | * | |
1234 | * This function cleans up @plane and removes it from the DRM mode setting | |
1235 | * core. Note that the function does *not* free the plane structure itself, | |
1236 | * this is the responsibility of the caller. | |
1237 | */ | |
8cf5c917 JB |
1238 | void drm_plane_cleanup(struct drm_plane *plane) |
1239 | { | |
1240 | struct drm_device *dev = plane->dev; | |
1241 | ||
84849903 | 1242 | drm_modeset_lock_all(dev); |
8cf5c917 JB |
1243 | kfree(plane->format_types); |
1244 | drm_mode_object_put(dev, &plane->base); | |
dc415ff9 MR |
1245 | |
1246 | BUG_ON(list_empty(&plane->head)); | |
1247 | ||
1248 | list_del(&plane->head); | |
1249 | dev->mode_config.num_total_plane--; | |
1250 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) | |
1251 | dev->mode_config.num_overlay_plane--; | |
84849903 | 1252 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
1253 | } |
1254 | EXPORT_SYMBOL(drm_plane_cleanup); | |
1255 | ||
10f637bf DV |
1256 | /** |
1257 | * drm_plane_index - find the index of a registered plane | |
1258 | * @plane: plane to find index for | |
1259 | * | |
1260 | * Given a registered plane, return the index of that CRTC within a DRM | |
1261 | * device's list of planes. | |
1262 | */ | |
1263 | unsigned int drm_plane_index(struct drm_plane *plane) | |
1264 | { | |
1265 | unsigned int index = 0; | |
1266 | struct drm_plane *tmp; | |
1267 | ||
1268 | list_for_each_entry(tmp, &plane->dev->mode_config.plane_list, head) { | |
1269 | if (tmp == plane) | |
1270 | return index; | |
1271 | ||
1272 | index++; | |
1273 | } | |
1274 | ||
1275 | BUG(); | |
1276 | } | |
1277 | EXPORT_SYMBOL(drm_plane_index); | |
1278 | ||
35f2c3ae VS |
1279 | /** |
1280 | * drm_plane_force_disable - Forcibly disable a plane | |
1281 | * @plane: plane to disable | |
1282 | * | |
1283 | * Forces the plane to be disabled. | |
1284 | * | |
1285 | * Used when the plane's current framebuffer is destroyed, | |
1286 | * and when restoring fbdev mode. | |
1287 | */ | |
9125e618 VS |
1288 | void drm_plane_force_disable(struct drm_plane *plane) |
1289 | { | |
0fe27f06 | 1290 | struct drm_framebuffer *old_fb = plane->fb; |
9125e618 VS |
1291 | int ret; |
1292 | ||
0fe27f06 | 1293 | if (!old_fb) |
9125e618 VS |
1294 | return; |
1295 | ||
1296 | ret = plane->funcs->disable_plane(plane); | |
731cce48 | 1297 | if (ret) { |
9125e618 | 1298 | DRM_ERROR("failed to disable plane with busy fb\n"); |
731cce48 DV |
1299 | return; |
1300 | } | |
9125e618 | 1301 | /* disconnect the plane from the fb and crtc: */ |
0fe27f06 | 1302 | __drm_framebuffer_unreference(old_fb); |
9125e618 VS |
1303 | plane->fb = NULL; |
1304 | plane->crtc = NULL; | |
1305 | } | |
1306 | EXPORT_SYMBOL(drm_plane_force_disable); | |
1307 | ||
f453ba04 DA |
1308 | static int drm_mode_create_standard_connector_properties(struct drm_device *dev) |
1309 | { | |
1310 | struct drm_property *edid; | |
1311 | struct drm_property *dpms; | |
43aba7eb | 1312 | struct drm_property *dev_path; |
f453ba04 DA |
1313 | |
1314 | /* | |
1315 | * Standard properties (apply to all connectors) | |
1316 | */ | |
1317 | edid = drm_property_create(dev, DRM_MODE_PROP_BLOB | | |
1318 | DRM_MODE_PROP_IMMUTABLE, | |
1319 | "EDID", 0); | |
1320 | dev->mode_config.edid_property = edid; | |
1321 | ||
4a67d391 SH |
1322 | dpms = drm_property_create_enum(dev, 0, |
1323 | "DPMS", drm_dpms_enum_list, | |
1324 | ARRAY_SIZE(drm_dpms_enum_list)); | |
f453ba04 DA |
1325 | dev->mode_config.dpms_property = dpms; |
1326 | ||
43aba7eb DA |
1327 | dev_path = drm_property_create(dev, |
1328 | DRM_MODE_PROP_BLOB | | |
1329 | DRM_MODE_PROP_IMMUTABLE, | |
1330 | "PATH", 0); | |
1331 | dev->mode_config.path_property = dev_path; | |
1332 | ||
f453ba04 DA |
1333 | return 0; |
1334 | } | |
1335 | ||
9922ab5a RC |
1336 | static int drm_mode_create_standard_plane_properties(struct drm_device *dev) |
1337 | { | |
1338 | struct drm_property *type; | |
1339 | ||
1340 | /* | |
1341 | * Standard properties (apply to all planes) | |
1342 | */ | |
1343 | type = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, | |
1344 | "type", drm_plane_type_enum_list, | |
1345 | ARRAY_SIZE(drm_plane_type_enum_list)); | |
1346 | dev->mode_config.plane_type_property = type; | |
1347 | ||
1348 | return 0; | |
1349 | } | |
1350 | ||
f453ba04 DA |
1351 | /** |
1352 | * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties | |
1353 | * @dev: DRM device | |
1354 | * | |
1355 | * Called by a driver the first time a DVI-I connector is made. | |
1356 | */ | |
1357 | int drm_mode_create_dvi_i_properties(struct drm_device *dev) | |
1358 | { | |
1359 | struct drm_property *dvi_i_selector; | |
1360 | struct drm_property *dvi_i_subconnector; | |
f453ba04 DA |
1361 | |
1362 | if (dev->mode_config.dvi_i_select_subconnector_property) | |
1363 | return 0; | |
1364 | ||
1365 | dvi_i_selector = | |
4a67d391 | 1366 | drm_property_create_enum(dev, 0, |
f453ba04 | 1367 | "select subconnector", |
4a67d391 | 1368 | drm_dvi_i_select_enum_list, |
f453ba04 | 1369 | ARRAY_SIZE(drm_dvi_i_select_enum_list)); |
f453ba04 DA |
1370 | dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; |
1371 | ||
4a67d391 | 1372 | dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
f453ba04 | 1373 | "subconnector", |
4a67d391 | 1374 | drm_dvi_i_subconnector_enum_list, |
f453ba04 | 1375 | ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); |
f453ba04 DA |
1376 | dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; |
1377 | ||
1378 | return 0; | |
1379 | } | |
1380 | EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); | |
1381 | ||
1382 | /** | |
1383 | * drm_create_tv_properties - create TV specific connector properties | |
1384 | * @dev: DRM device | |
1385 | * @num_modes: number of different TV formats (modes) supported | |
1386 | * @modes: array of pointers to strings containing name of each format | |
1387 | * | |
1388 | * Called by a driver's TV initialization routine, this function creates | |
1389 | * the TV specific connector properties for a given device. Caller is | |
1390 | * responsible for allocating a list of format names and passing them to | |
1391 | * this routine. | |
1392 | */ | |
1393 | int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes, | |
1394 | char *modes[]) | |
1395 | { | |
1396 | struct drm_property *tv_selector; | |
1397 | struct drm_property *tv_subconnector; | |
1398 | int i; | |
1399 | ||
1400 | if (dev->mode_config.tv_select_subconnector_property) | |
1401 | return 0; | |
1402 | ||
1403 | /* | |
1404 | * Basic connector properties | |
1405 | */ | |
4a67d391 | 1406 | tv_selector = drm_property_create_enum(dev, 0, |
f453ba04 | 1407 | "select subconnector", |
4a67d391 | 1408 | drm_tv_select_enum_list, |
f453ba04 | 1409 | ARRAY_SIZE(drm_tv_select_enum_list)); |
f453ba04 DA |
1410 | dev->mode_config.tv_select_subconnector_property = tv_selector; |
1411 | ||
1412 | tv_subconnector = | |
4a67d391 SH |
1413 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
1414 | "subconnector", | |
1415 | drm_tv_subconnector_enum_list, | |
f453ba04 | 1416 | ARRAY_SIZE(drm_tv_subconnector_enum_list)); |
f453ba04 DA |
1417 | dev->mode_config.tv_subconnector_property = tv_subconnector; |
1418 | ||
1419 | /* | |
1420 | * Other, TV specific properties: margins & TV modes. | |
1421 | */ | |
1422 | dev->mode_config.tv_left_margin_property = | |
d9bc3c02 | 1423 | drm_property_create_range(dev, 0, "left margin", 0, 100); |
f453ba04 DA |
1424 | |
1425 | dev->mode_config.tv_right_margin_property = | |
d9bc3c02 | 1426 | drm_property_create_range(dev, 0, "right margin", 0, 100); |
f453ba04 DA |
1427 | |
1428 | dev->mode_config.tv_top_margin_property = | |
d9bc3c02 | 1429 | drm_property_create_range(dev, 0, "top margin", 0, 100); |
f453ba04 DA |
1430 | |
1431 | dev->mode_config.tv_bottom_margin_property = | |
d9bc3c02 | 1432 | drm_property_create_range(dev, 0, "bottom margin", 0, 100); |
f453ba04 DA |
1433 | |
1434 | dev->mode_config.tv_mode_property = | |
1435 | drm_property_create(dev, DRM_MODE_PROP_ENUM, | |
1436 | "mode", num_modes); | |
1437 | for (i = 0; i < num_modes; i++) | |
1438 | drm_property_add_enum(dev->mode_config.tv_mode_property, i, | |
1439 | i, modes[i]); | |
1440 | ||
b6b7902e | 1441 | dev->mode_config.tv_brightness_property = |
d9bc3c02 | 1442 | drm_property_create_range(dev, 0, "brightness", 0, 100); |
b6b7902e FJ |
1443 | |
1444 | dev->mode_config.tv_contrast_property = | |
d9bc3c02 | 1445 | drm_property_create_range(dev, 0, "contrast", 0, 100); |
b6b7902e FJ |
1446 | |
1447 | dev->mode_config.tv_flicker_reduction_property = | |
d9bc3c02 | 1448 | drm_property_create_range(dev, 0, "flicker reduction", 0, 100); |
b6b7902e | 1449 | |
a75f0236 | 1450 | dev->mode_config.tv_overscan_property = |
d9bc3c02 | 1451 | drm_property_create_range(dev, 0, "overscan", 0, 100); |
a75f0236 FJ |
1452 | |
1453 | dev->mode_config.tv_saturation_property = | |
d9bc3c02 | 1454 | drm_property_create_range(dev, 0, "saturation", 0, 100); |
a75f0236 FJ |
1455 | |
1456 | dev->mode_config.tv_hue_property = | |
d9bc3c02 | 1457 | drm_property_create_range(dev, 0, "hue", 0, 100); |
a75f0236 | 1458 | |
f453ba04 DA |
1459 | return 0; |
1460 | } | |
1461 | EXPORT_SYMBOL(drm_mode_create_tv_properties); | |
1462 | ||
1463 | /** | |
1464 | * drm_mode_create_scaling_mode_property - create scaling mode property | |
1465 | * @dev: DRM device | |
1466 | * | |
1467 | * Called by a driver the first time it's needed, must be attached to desired | |
1468 | * connectors. | |
1469 | */ | |
1470 | int drm_mode_create_scaling_mode_property(struct drm_device *dev) | |
1471 | { | |
1472 | struct drm_property *scaling_mode; | |
f453ba04 DA |
1473 | |
1474 | if (dev->mode_config.scaling_mode_property) | |
1475 | return 0; | |
1476 | ||
1477 | scaling_mode = | |
4a67d391 SH |
1478 | drm_property_create_enum(dev, 0, "scaling mode", |
1479 | drm_scaling_mode_enum_list, | |
f453ba04 | 1480 | ARRAY_SIZE(drm_scaling_mode_enum_list)); |
f453ba04 DA |
1481 | |
1482 | dev->mode_config.scaling_mode_property = scaling_mode; | |
1483 | ||
1484 | return 0; | |
1485 | } | |
1486 | EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); | |
1487 | ||
ff587e45 VK |
1488 | /** |
1489 | * drm_mode_create_aspect_ratio_property - create aspect ratio property | |
1490 | * @dev: DRM device | |
1491 | * | |
1492 | * Called by a driver the first time it's needed, must be attached to desired | |
1493 | * connectors. | |
1494 | * | |
1495 | * Returns: | |
1496 | * Zero on success, errno on failure. | |
1497 | */ | |
1498 | int drm_mode_create_aspect_ratio_property(struct drm_device *dev) | |
1499 | { | |
1500 | if (dev->mode_config.aspect_ratio_property) | |
1501 | return 0; | |
1502 | ||
1503 | dev->mode_config.aspect_ratio_property = | |
1504 | drm_property_create_enum(dev, 0, "aspect ratio", | |
1505 | drm_aspect_ratio_enum_list, | |
1506 | ARRAY_SIZE(drm_aspect_ratio_enum_list)); | |
1507 | ||
1508 | if (dev->mode_config.aspect_ratio_property == NULL) | |
1509 | return -ENOMEM; | |
1510 | ||
1511 | return 0; | |
1512 | } | |
1513 | EXPORT_SYMBOL(drm_mode_create_aspect_ratio_property); | |
1514 | ||
884840aa JB |
1515 | /** |
1516 | * drm_mode_create_dirty_property - create dirty property | |
1517 | * @dev: DRM device | |
1518 | * | |
1519 | * Called by a driver the first time it's needed, must be attached to desired | |
1520 | * connectors. | |
1521 | */ | |
1522 | int drm_mode_create_dirty_info_property(struct drm_device *dev) | |
1523 | { | |
1524 | struct drm_property *dirty_info; | |
884840aa JB |
1525 | |
1526 | if (dev->mode_config.dirty_info_property) | |
1527 | return 0; | |
1528 | ||
1529 | dirty_info = | |
4a67d391 | 1530 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
884840aa | 1531 | "dirty", |
4a67d391 | 1532 | drm_dirty_info_enum_list, |
884840aa | 1533 | ARRAY_SIZE(drm_dirty_info_enum_list)); |
884840aa JB |
1534 | dev->mode_config.dirty_info_property = dirty_info; |
1535 | ||
1536 | return 0; | |
1537 | } | |
1538 | EXPORT_SYMBOL(drm_mode_create_dirty_info_property); | |
1539 | ||
ea9cbb06 | 1540 | static int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group) |
f453ba04 DA |
1541 | { |
1542 | uint32_t total_objects = 0; | |
1543 | ||
1544 | total_objects += dev->mode_config.num_crtc; | |
1545 | total_objects += dev->mode_config.num_connector; | |
1546 | total_objects += dev->mode_config.num_encoder; | |
3b336ec4 | 1547 | total_objects += dev->mode_config.num_bridge; |
f453ba04 | 1548 | |
f453ba04 DA |
1549 | group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL); |
1550 | if (!group->id_list) | |
1551 | return -ENOMEM; | |
1552 | ||
1553 | group->num_crtcs = 0; | |
1554 | group->num_connectors = 0; | |
1555 | group->num_encoders = 0; | |
3b336ec4 | 1556 | group->num_bridges = 0; |
f453ba04 DA |
1557 | return 0; |
1558 | } | |
1559 | ||
ad222799 DA |
1560 | void drm_mode_group_destroy(struct drm_mode_group *group) |
1561 | { | |
1562 | kfree(group->id_list); | |
1563 | group->id_list = NULL; | |
1564 | } | |
1565 | ||
c8e32cc1 DV |
1566 | /* |
1567 | * NOTE: Driver's shouldn't ever call drm_mode_group_init_legacy_group - it is | |
1568 | * the drm core's responsibility to set up mode control groups. | |
1569 | */ | |
f453ba04 DA |
1570 | int drm_mode_group_init_legacy_group(struct drm_device *dev, |
1571 | struct drm_mode_group *group) | |
1572 | { | |
1573 | struct drm_crtc *crtc; | |
1574 | struct drm_encoder *encoder; | |
1575 | struct drm_connector *connector; | |
3b336ec4 | 1576 | struct drm_bridge *bridge; |
f453ba04 DA |
1577 | int ret; |
1578 | ||
1579 | if ((ret = drm_mode_group_init(dev, group))) | |
1580 | return ret; | |
1581 | ||
1582 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) | |
1583 | group->id_list[group->num_crtcs++] = crtc->base.id; | |
1584 | ||
1585 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) | |
1586 | group->id_list[group->num_crtcs + group->num_encoders++] = | |
1587 | encoder->base.id; | |
1588 | ||
1589 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) | |
1590 | group->id_list[group->num_crtcs + group->num_encoders + | |
1591 | group->num_connectors++] = connector->base.id; | |
1592 | ||
3b336ec4 SP |
1593 | list_for_each_entry(bridge, &dev->mode_config.bridge_list, head) |
1594 | group->id_list[group->num_crtcs + group->num_encoders + | |
1595 | group->num_connectors + group->num_bridges++] = | |
1596 | bridge->base.id; | |
1597 | ||
f453ba04 DA |
1598 | return 0; |
1599 | } | |
9c1dfc55 | 1600 | EXPORT_SYMBOL(drm_mode_group_init_legacy_group); |
f453ba04 | 1601 | |
2390cd11 DA |
1602 | void drm_reinit_primary_mode_group(struct drm_device *dev) |
1603 | { | |
1604 | drm_modeset_lock_all(dev); | |
1605 | drm_mode_group_destroy(&dev->primary->mode_group); | |
1606 | drm_mode_group_init_legacy_group(dev, &dev->primary->mode_group); | |
1607 | drm_modeset_unlock_all(dev); | |
1608 | } | |
1609 | EXPORT_SYMBOL(drm_reinit_primary_mode_group); | |
1610 | ||
f453ba04 DA |
1611 | /** |
1612 | * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo | |
1613 | * @out: drm_mode_modeinfo struct to return to the user | |
1614 | * @in: drm_display_mode to use | |
1615 | * | |
f453ba04 DA |
1616 | * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to |
1617 | * the user. | |
1618 | */ | |
93bbf6db VS |
1619 | static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out, |
1620 | const struct drm_display_mode *in) | |
f453ba04 | 1621 | { |
e36fae38 VS |
1622 | WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX || |
1623 | in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX || | |
1624 | in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX || | |
1625 | in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX || | |
1626 | in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX, | |
1627 | "timing values too large for mode info\n"); | |
1628 | ||
f453ba04 DA |
1629 | out->clock = in->clock; |
1630 | out->hdisplay = in->hdisplay; | |
1631 | out->hsync_start = in->hsync_start; | |
1632 | out->hsync_end = in->hsync_end; | |
1633 | out->htotal = in->htotal; | |
1634 | out->hskew = in->hskew; | |
1635 | out->vdisplay = in->vdisplay; | |
1636 | out->vsync_start = in->vsync_start; | |
1637 | out->vsync_end = in->vsync_end; | |
1638 | out->vtotal = in->vtotal; | |
1639 | out->vscan = in->vscan; | |
1640 | out->vrefresh = in->vrefresh; | |
1641 | out->flags = in->flags; | |
1642 | out->type = in->type; | |
1643 | strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); | |
1644 | out->name[DRM_DISPLAY_MODE_LEN-1] = 0; | |
1645 | } | |
1646 | ||
1647 | /** | |
74afee7d | 1648 | * drm_crtc_convert_umode - convert a modeinfo into a drm_display_mode |
f453ba04 DA |
1649 | * @out: drm_display_mode to return to the user |
1650 | * @in: drm_mode_modeinfo to use | |
1651 | * | |
f453ba04 DA |
1652 | * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to |
1653 | * the caller. | |
90367bf6 | 1654 | * |
c8e32cc1 | 1655 | * Returns: |
90367bf6 | 1656 | * Zero on success, errno on failure. |
f453ba04 | 1657 | */ |
93bbf6db VS |
1658 | static int drm_crtc_convert_umode(struct drm_display_mode *out, |
1659 | const struct drm_mode_modeinfo *in) | |
f453ba04 | 1660 | { |
90367bf6 VS |
1661 | if (in->clock > INT_MAX || in->vrefresh > INT_MAX) |
1662 | return -ERANGE; | |
1663 | ||
5848ad40 DL |
1664 | if ((in->flags & DRM_MODE_FLAG_3D_MASK) > DRM_MODE_FLAG_3D_MAX) |
1665 | return -EINVAL; | |
1666 | ||
f453ba04 DA |
1667 | out->clock = in->clock; |
1668 | out->hdisplay = in->hdisplay; | |
1669 | out->hsync_start = in->hsync_start; | |
1670 | out->hsync_end = in->hsync_end; | |
1671 | out->htotal = in->htotal; | |
1672 | out->hskew = in->hskew; | |
1673 | out->vdisplay = in->vdisplay; | |
1674 | out->vsync_start = in->vsync_start; | |
1675 | out->vsync_end = in->vsync_end; | |
1676 | out->vtotal = in->vtotal; | |
1677 | out->vscan = in->vscan; | |
1678 | out->vrefresh = in->vrefresh; | |
1679 | out->flags = in->flags; | |
1680 | out->type = in->type; | |
1681 | strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); | |
1682 | out->name[DRM_DISPLAY_MODE_LEN-1] = 0; | |
90367bf6 VS |
1683 | |
1684 | return 0; | |
f453ba04 DA |
1685 | } |
1686 | ||
1687 | /** | |
1688 | * drm_mode_getresources - get graphics configuration | |
065a50ed DV |
1689 | * @dev: drm device for the ioctl |
1690 | * @data: data pointer for the ioctl | |
1691 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1692 | * |
f453ba04 DA |
1693 | * Construct a set of configuration description structures and return |
1694 | * them to the user, including CRTC, connector and framebuffer configuration. | |
1695 | * | |
1696 | * Called by the user via ioctl. | |
1697 | * | |
c8e32cc1 | 1698 | * Returns: |
f453ba04 DA |
1699 | * Zero on success, errno on failure. |
1700 | */ | |
1701 | int drm_mode_getresources(struct drm_device *dev, void *data, | |
1702 | struct drm_file *file_priv) | |
1703 | { | |
1704 | struct drm_mode_card_res *card_res = data; | |
1705 | struct list_head *lh; | |
1706 | struct drm_framebuffer *fb; | |
1707 | struct drm_connector *connector; | |
1708 | struct drm_crtc *crtc; | |
1709 | struct drm_encoder *encoder; | |
1710 | int ret = 0; | |
1711 | int connector_count = 0; | |
1712 | int crtc_count = 0; | |
1713 | int fb_count = 0; | |
1714 | int encoder_count = 0; | |
1715 | int copied = 0, i; | |
1716 | uint32_t __user *fb_id; | |
1717 | uint32_t __user *crtc_id; | |
1718 | uint32_t __user *connector_id; | |
1719 | uint32_t __user *encoder_id; | |
1720 | struct drm_mode_group *mode_group; | |
1721 | ||
fb3b06c8 DA |
1722 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1723 | return -EINVAL; | |
1724 | ||
f453ba04 | 1725 | |
4b096ac1 | 1726 | mutex_lock(&file_priv->fbs_lock); |
f453ba04 DA |
1727 | /* |
1728 | * For the non-control nodes we need to limit the list of resources | |
1729 | * by IDs in the group list for this node | |
1730 | */ | |
1731 | list_for_each(lh, &file_priv->fbs) | |
1732 | fb_count++; | |
1733 | ||
4b096ac1 DV |
1734 | /* handle this in 4 parts */ |
1735 | /* FBs */ | |
1736 | if (card_res->count_fbs >= fb_count) { | |
1737 | copied = 0; | |
1738 | fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; | |
1739 | list_for_each_entry(fb, &file_priv->fbs, filp_head) { | |
1740 | if (put_user(fb->base.id, fb_id + copied)) { | |
1741 | mutex_unlock(&file_priv->fbs_lock); | |
1742 | return -EFAULT; | |
1743 | } | |
1744 | copied++; | |
1745 | } | |
1746 | } | |
1747 | card_res->count_fbs = fb_count; | |
1748 | mutex_unlock(&file_priv->fbs_lock); | |
1749 | ||
1750 | drm_modeset_lock_all(dev); | |
43683057 | 1751 | if (!drm_is_primary_client(file_priv)) { |
f453ba04 | 1752 | |
09f308f7 | 1753 | mode_group = NULL; |
f453ba04 DA |
1754 | list_for_each(lh, &dev->mode_config.crtc_list) |
1755 | crtc_count++; | |
1756 | ||
1757 | list_for_each(lh, &dev->mode_config.connector_list) | |
1758 | connector_count++; | |
1759 | ||
1760 | list_for_each(lh, &dev->mode_config.encoder_list) | |
1761 | encoder_count++; | |
1762 | } else { | |
1763 | ||
09f308f7 | 1764 | mode_group = &file_priv->master->minor->mode_group; |
f453ba04 DA |
1765 | crtc_count = mode_group->num_crtcs; |
1766 | connector_count = mode_group->num_connectors; | |
1767 | encoder_count = mode_group->num_encoders; | |
1768 | } | |
1769 | ||
1770 | card_res->max_height = dev->mode_config.max_height; | |
1771 | card_res->min_height = dev->mode_config.min_height; | |
1772 | card_res->max_width = dev->mode_config.max_width; | |
1773 | card_res->min_width = dev->mode_config.min_width; | |
1774 | ||
f453ba04 DA |
1775 | /* CRTCs */ |
1776 | if (card_res->count_crtcs >= crtc_count) { | |
1777 | copied = 0; | |
1778 | crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; | |
09f308f7 | 1779 | if (!mode_group) { |
f453ba04 DA |
1780 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, |
1781 | head) { | |
9440106b | 1782 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
f453ba04 DA |
1783 | if (put_user(crtc->base.id, crtc_id + copied)) { |
1784 | ret = -EFAULT; | |
1785 | goto out; | |
1786 | } | |
1787 | copied++; | |
1788 | } | |
1789 | } else { | |
1790 | for (i = 0; i < mode_group->num_crtcs; i++) { | |
1791 | if (put_user(mode_group->id_list[i], | |
1792 | crtc_id + copied)) { | |
1793 | ret = -EFAULT; | |
1794 | goto out; | |
1795 | } | |
1796 | copied++; | |
1797 | } | |
1798 | } | |
1799 | } | |
1800 | card_res->count_crtcs = crtc_count; | |
1801 | ||
1802 | /* Encoders */ | |
1803 | if (card_res->count_encoders >= encoder_count) { | |
1804 | copied = 0; | |
1805 | encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; | |
09f308f7 | 1806 | if (!mode_group) { |
f453ba04 DA |
1807 | list_for_each_entry(encoder, |
1808 | &dev->mode_config.encoder_list, | |
1809 | head) { | |
9440106b | 1810 | DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id, |
83a8cfd3 | 1811 | encoder->name); |
f453ba04 DA |
1812 | if (put_user(encoder->base.id, encoder_id + |
1813 | copied)) { | |
1814 | ret = -EFAULT; | |
1815 | goto out; | |
1816 | } | |
1817 | copied++; | |
1818 | } | |
1819 | } else { | |
1820 | for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) { | |
1821 | if (put_user(mode_group->id_list[i], | |
1822 | encoder_id + copied)) { | |
1823 | ret = -EFAULT; | |
1824 | goto out; | |
1825 | } | |
1826 | copied++; | |
1827 | } | |
1828 | ||
1829 | } | |
1830 | } | |
1831 | card_res->count_encoders = encoder_count; | |
1832 | ||
1833 | /* Connectors */ | |
1834 | if (card_res->count_connectors >= connector_count) { | |
1835 | copied = 0; | |
1836 | connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; | |
09f308f7 | 1837 | if (!mode_group) { |
f453ba04 DA |
1838 | list_for_each_entry(connector, |
1839 | &dev->mode_config.connector_list, | |
1840 | head) { | |
9440106b JG |
1841 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
1842 | connector->base.id, | |
25933820 | 1843 | connector->name); |
f453ba04 DA |
1844 | if (put_user(connector->base.id, |
1845 | connector_id + copied)) { | |
1846 | ret = -EFAULT; | |
1847 | goto out; | |
1848 | } | |
1849 | copied++; | |
1850 | } | |
1851 | } else { | |
1852 | int start = mode_group->num_crtcs + | |
1853 | mode_group->num_encoders; | |
1854 | for (i = start; i < start + mode_group->num_connectors; i++) { | |
1855 | if (put_user(mode_group->id_list[i], | |
1856 | connector_id + copied)) { | |
1857 | ret = -EFAULT; | |
1858 | goto out; | |
1859 | } | |
1860 | copied++; | |
1861 | } | |
1862 | } | |
1863 | } | |
1864 | card_res->count_connectors = connector_count; | |
1865 | ||
9440106b | 1866 | DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs, |
f453ba04 DA |
1867 | card_res->count_connectors, card_res->count_encoders); |
1868 | ||
1869 | out: | |
84849903 | 1870 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1871 | return ret; |
1872 | } | |
1873 | ||
1874 | /** | |
1875 | * drm_mode_getcrtc - get CRTC configuration | |
065a50ed DV |
1876 | * @dev: drm device for the ioctl |
1877 | * @data: data pointer for the ioctl | |
1878 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1879 | * |
f453ba04 DA |
1880 | * Construct a CRTC configuration structure to return to the user. |
1881 | * | |
1882 | * Called by the user via ioctl. | |
1883 | * | |
c8e32cc1 | 1884 | * Returns: |
f453ba04 DA |
1885 | * Zero on success, errno on failure. |
1886 | */ | |
1887 | int drm_mode_getcrtc(struct drm_device *dev, | |
1888 | void *data, struct drm_file *file_priv) | |
1889 | { | |
1890 | struct drm_mode_crtc *crtc_resp = data; | |
1891 | struct drm_crtc *crtc; | |
f453ba04 DA |
1892 | int ret = 0; |
1893 | ||
fb3b06c8 DA |
1894 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1895 | return -EINVAL; | |
1896 | ||
84849903 | 1897 | drm_modeset_lock_all(dev); |
f453ba04 | 1898 | |
a2b34e22 RC |
1899 | crtc = drm_crtc_find(dev, crtc_resp->crtc_id); |
1900 | if (!crtc) { | |
f27657f2 | 1901 | ret = -ENOENT; |
f453ba04 DA |
1902 | goto out; |
1903 | } | |
f453ba04 DA |
1904 | |
1905 | crtc_resp->x = crtc->x; | |
1906 | crtc_resp->y = crtc->y; | |
1907 | crtc_resp->gamma_size = crtc->gamma_size; | |
f4510a27 MR |
1908 | if (crtc->primary->fb) |
1909 | crtc_resp->fb_id = crtc->primary->fb->base.id; | |
f453ba04 DA |
1910 | else |
1911 | crtc_resp->fb_id = 0; | |
1912 | ||
1913 | if (crtc->enabled) { | |
1914 | ||
1915 | drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode); | |
1916 | crtc_resp->mode_valid = 1; | |
1917 | ||
1918 | } else { | |
1919 | crtc_resp->mode_valid = 0; | |
1920 | } | |
1921 | ||
1922 | out: | |
84849903 | 1923 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1924 | return ret; |
1925 | } | |
1926 | ||
61d8e328 DL |
1927 | static bool drm_mode_expose_to_userspace(const struct drm_display_mode *mode, |
1928 | const struct drm_file *file_priv) | |
1929 | { | |
1930 | /* | |
1931 | * If user-space hasn't configured the driver to expose the stereo 3D | |
1932 | * modes, don't expose them. | |
1933 | */ | |
1934 | if (!file_priv->stereo_allowed && drm_mode_is_stereo(mode)) | |
1935 | return false; | |
1936 | ||
1937 | return true; | |
1938 | } | |
1939 | ||
f453ba04 DA |
1940 | /** |
1941 | * drm_mode_getconnector - get connector configuration | |
065a50ed DV |
1942 | * @dev: drm device for the ioctl |
1943 | * @data: data pointer for the ioctl | |
1944 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1945 | * |
f453ba04 DA |
1946 | * Construct a connector configuration structure to return to the user. |
1947 | * | |
1948 | * Called by the user via ioctl. | |
1949 | * | |
c8e32cc1 | 1950 | * Returns: |
f453ba04 DA |
1951 | * Zero on success, errno on failure. |
1952 | */ | |
1953 | int drm_mode_getconnector(struct drm_device *dev, void *data, | |
1954 | struct drm_file *file_priv) | |
1955 | { | |
1956 | struct drm_mode_get_connector *out_resp = data; | |
f453ba04 DA |
1957 | struct drm_connector *connector; |
1958 | struct drm_display_mode *mode; | |
1959 | int mode_count = 0; | |
1960 | int props_count = 0; | |
1961 | int encoders_count = 0; | |
1962 | int ret = 0; | |
1963 | int copied = 0; | |
1964 | int i; | |
1965 | struct drm_mode_modeinfo u_mode; | |
1966 | struct drm_mode_modeinfo __user *mode_ptr; | |
1967 | uint32_t __user *prop_ptr; | |
1968 | uint64_t __user *prop_values; | |
1969 | uint32_t __user *encoder_ptr; | |
1970 | ||
fb3b06c8 DA |
1971 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1972 | return -EINVAL; | |
1973 | ||
f453ba04 DA |
1974 | memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); |
1975 | ||
9440106b | 1976 | DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id); |
f453ba04 | 1977 | |
7b24056b | 1978 | mutex_lock(&dev->mode_config.mutex); |
f453ba04 | 1979 | |
a2b34e22 RC |
1980 | connector = drm_connector_find(dev, out_resp->connector_id); |
1981 | if (!connector) { | |
f27657f2 | 1982 | ret = -ENOENT; |
f453ba04 DA |
1983 | goto out; |
1984 | } | |
f453ba04 | 1985 | |
7f88a9be | 1986 | props_count = connector->properties.count; |
f453ba04 DA |
1987 | |
1988 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { | |
1989 | if (connector->encoder_ids[i] != 0) { | |
1990 | encoders_count++; | |
1991 | } | |
1992 | } | |
1993 | ||
1994 | if (out_resp->count_modes == 0) { | |
1995 | connector->funcs->fill_modes(connector, | |
1996 | dev->mode_config.max_width, | |
1997 | dev->mode_config.max_height); | |
1998 | } | |
1999 | ||
2000 | /* delayed so we get modes regardless of pre-fill_modes state */ | |
2001 | list_for_each_entry(mode, &connector->modes, head) | |
61d8e328 DL |
2002 | if (drm_mode_expose_to_userspace(mode, file_priv)) |
2003 | mode_count++; | |
f453ba04 DA |
2004 | |
2005 | out_resp->connector_id = connector->base.id; | |
2006 | out_resp->connector_type = connector->connector_type; | |
2007 | out_resp->connector_type_id = connector->connector_type_id; | |
2008 | out_resp->mm_width = connector->display_info.width_mm; | |
2009 | out_resp->mm_height = connector->display_info.height_mm; | |
2010 | out_resp->subpixel = connector->display_info.subpixel_order; | |
2011 | out_resp->connection = connector->status; | |
832fd395 | 2012 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); |
f453ba04 DA |
2013 | if (connector->encoder) |
2014 | out_resp->encoder_id = connector->encoder->base.id; | |
2015 | else | |
2016 | out_resp->encoder_id = 0; | |
832fd395 | 2017 | drm_modeset_unlock(&dev->mode_config.connection_mutex); |
f453ba04 DA |
2018 | |
2019 | /* | |
2020 | * This ioctl is called twice, once to determine how much space is | |
2021 | * needed, and the 2nd time to fill it. | |
2022 | */ | |
2023 | if ((out_resp->count_modes >= mode_count) && mode_count) { | |
2024 | copied = 0; | |
81f6c7f8 | 2025 | mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; |
f453ba04 | 2026 | list_for_each_entry(mode, &connector->modes, head) { |
61d8e328 DL |
2027 | if (!drm_mode_expose_to_userspace(mode, file_priv)) |
2028 | continue; | |
2029 | ||
f453ba04 DA |
2030 | drm_crtc_convert_to_umode(&u_mode, mode); |
2031 | if (copy_to_user(mode_ptr + copied, | |
2032 | &u_mode, sizeof(u_mode))) { | |
2033 | ret = -EFAULT; | |
2034 | goto out; | |
2035 | } | |
2036 | copied++; | |
2037 | } | |
2038 | } | |
2039 | out_resp->count_modes = mode_count; | |
2040 | ||
2041 | if ((out_resp->count_props >= props_count) && props_count) { | |
2042 | copied = 0; | |
81f6c7f8 VS |
2043 | prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr); |
2044 | prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr); | |
7f88a9be PZ |
2045 | for (i = 0; i < connector->properties.count; i++) { |
2046 | if (put_user(connector->properties.ids[i], | |
2047 | prop_ptr + copied)) { | |
2048 | ret = -EFAULT; | |
2049 | goto out; | |
2050 | } | |
f453ba04 | 2051 | |
7f88a9be PZ |
2052 | if (put_user(connector->properties.values[i], |
2053 | prop_values + copied)) { | |
2054 | ret = -EFAULT; | |
2055 | goto out; | |
f453ba04 | 2056 | } |
7f88a9be | 2057 | copied++; |
f453ba04 DA |
2058 | } |
2059 | } | |
2060 | out_resp->count_props = props_count; | |
2061 | ||
2062 | if ((out_resp->count_encoders >= encoders_count) && encoders_count) { | |
2063 | copied = 0; | |
81f6c7f8 | 2064 | encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); |
f453ba04 DA |
2065 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
2066 | if (connector->encoder_ids[i] != 0) { | |
2067 | if (put_user(connector->encoder_ids[i], | |
2068 | encoder_ptr + copied)) { | |
2069 | ret = -EFAULT; | |
2070 | goto out; | |
2071 | } | |
2072 | copied++; | |
2073 | } | |
2074 | } | |
2075 | } | |
2076 | out_resp->count_encoders = encoders_count; | |
2077 | ||
2078 | out: | |
7b24056b DV |
2079 | mutex_unlock(&dev->mode_config.mutex); |
2080 | ||
f453ba04 DA |
2081 | return ret; |
2082 | } | |
2083 | ||
c8e32cc1 DV |
2084 | /** |
2085 | * drm_mode_getencoder - get encoder configuration | |
2086 | * @dev: drm device for the ioctl | |
2087 | * @data: data pointer for the ioctl | |
2088 | * @file_priv: drm file for the ioctl call | |
2089 | * | |
2090 | * Construct a encoder configuration structure to return to the user. | |
2091 | * | |
2092 | * Called by the user via ioctl. | |
2093 | * | |
2094 | * Returns: | |
2095 | * Zero on success, errno on failure. | |
2096 | */ | |
f453ba04 DA |
2097 | int drm_mode_getencoder(struct drm_device *dev, void *data, |
2098 | struct drm_file *file_priv) | |
2099 | { | |
2100 | struct drm_mode_get_encoder *enc_resp = data; | |
f453ba04 DA |
2101 | struct drm_encoder *encoder; |
2102 | int ret = 0; | |
2103 | ||
fb3b06c8 DA |
2104 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2105 | return -EINVAL; | |
2106 | ||
84849903 | 2107 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
2108 | encoder = drm_encoder_find(dev, enc_resp->encoder_id); |
2109 | if (!encoder) { | |
f27657f2 | 2110 | ret = -ENOENT; |
f453ba04 DA |
2111 | goto out; |
2112 | } | |
f453ba04 DA |
2113 | |
2114 | if (encoder->crtc) | |
2115 | enc_resp->crtc_id = encoder->crtc->base.id; | |
2116 | else | |
2117 | enc_resp->crtc_id = 0; | |
2118 | enc_resp->encoder_type = encoder->encoder_type; | |
2119 | enc_resp->encoder_id = encoder->base.id; | |
2120 | enc_resp->possible_crtcs = encoder->possible_crtcs; | |
2121 | enc_resp->possible_clones = encoder->possible_clones; | |
2122 | ||
2123 | out: | |
84849903 | 2124 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
2125 | return ret; |
2126 | } | |
2127 | ||
8cf5c917 | 2128 | /** |
c8e32cc1 | 2129 | * drm_mode_getplane_res - enumerate all plane resources |
8cf5c917 JB |
2130 | * @dev: DRM device |
2131 | * @data: ioctl data | |
2132 | * @file_priv: DRM file info | |
2133 | * | |
c8e32cc1 DV |
2134 | * Construct a list of plane ids to return to the user. |
2135 | * | |
2136 | * Called by the user via ioctl. | |
2137 | * | |
2138 | * Returns: | |
2139 | * Zero on success, errno on failure. | |
8cf5c917 JB |
2140 | */ |
2141 | int drm_mode_getplane_res(struct drm_device *dev, void *data, | |
c8e32cc1 | 2142 | struct drm_file *file_priv) |
8cf5c917 JB |
2143 | { |
2144 | struct drm_mode_get_plane_res *plane_resp = data; | |
2145 | struct drm_mode_config *config; | |
2146 | struct drm_plane *plane; | |
2147 | uint32_t __user *plane_ptr; | |
2148 | int copied = 0, ret = 0; | |
681e7ec7 | 2149 | unsigned num_planes; |
8cf5c917 JB |
2150 | |
2151 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2152 | return -EINVAL; | |
2153 | ||
84849903 | 2154 | drm_modeset_lock_all(dev); |
8cf5c917 JB |
2155 | config = &dev->mode_config; |
2156 | ||
681e7ec7 MR |
2157 | if (file_priv->universal_planes) |
2158 | num_planes = config->num_total_plane; | |
2159 | else | |
2160 | num_planes = config->num_overlay_plane; | |
2161 | ||
8cf5c917 JB |
2162 | /* |
2163 | * This ioctl is called twice, once to determine how much space is | |
2164 | * needed, and the 2nd time to fill it. | |
2165 | */ | |
681e7ec7 MR |
2166 | if (num_planes && |
2167 | (plane_resp->count_planes >= num_planes)) { | |
81f6c7f8 | 2168 | plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; |
8cf5c917 JB |
2169 | |
2170 | list_for_each_entry(plane, &config->plane_list, head) { | |
681e7ec7 MR |
2171 | /* |
2172 | * Unless userspace set the 'universal planes' | |
2173 | * capability bit, only advertise overlays. | |
2174 | */ | |
2175 | if (plane->type != DRM_PLANE_TYPE_OVERLAY && | |
2176 | !file_priv->universal_planes) | |
e27dde3e MR |
2177 | continue; |
2178 | ||
8cf5c917 JB |
2179 | if (put_user(plane->base.id, plane_ptr + copied)) { |
2180 | ret = -EFAULT; | |
2181 | goto out; | |
2182 | } | |
2183 | copied++; | |
2184 | } | |
2185 | } | |
681e7ec7 | 2186 | plane_resp->count_planes = num_planes; |
8cf5c917 JB |
2187 | |
2188 | out: | |
84849903 | 2189 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
2190 | return ret; |
2191 | } | |
2192 | ||
2193 | /** | |
c8e32cc1 | 2194 | * drm_mode_getplane - get plane configuration |
8cf5c917 JB |
2195 | * @dev: DRM device |
2196 | * @data: ioctl data | |
2197 | * @file_priv: DRM file info | |
2198 | * | |
c8e32cc1 DV |
2199 | * Construct a plane configuration structure to return to the user. |
2200 | * | |
2201 | * Called by the user via ioctl. | |
2202 | * | |
2203 | * Returns: | |
2204 | * Zero on success, errno on failure. | |
8cf5c917 JB |
2205 | */ |
2206 | int drm_mode_getplane(struct drm_device *dev, void *data, | |
c8e32cc1 | 2207 | struct drm_file *file_priv) |
8cf5c917 JB |
2208 | { |
2209 | struct drm_mode_get_plane *plane_resp = data; | |
8cf5c917 JB |
2210 | struct drm_plane *plane; |
2211 | uint32_t __user *format_ptr; | |
2212 | int ret = 0; | |
2213 | ||
2214 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2215 | return -EINVAL; | |
2216 | ||
84849903 | 2217 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
2218 | plane = drm_plane_find(dev, plane_resp->plane_id); |
2219 | if (!plane) { | |
8cf5c917 JB |
2220 | ret = -ENOENT; |
2221 | goto out; | |
2222 | } | |
8cf5c917 JB |
2223 | |
2224 | if (plane->crtc) | |
2225 | plane_resp->crtc_id = plane->crtc->base.id; | |
2226 | else | |
2227 | plane_resp->crtc_id = 0; | |
2228 | ||
2229 | if (plane->fb) | |
2230 | plane_resp->fb_id = plane->fb->base.id; | |
2231 | else | |
2232 | plane_resp->fb_id = 0; | |
2233 | ||
2234 | plane_resp->plane_id = plane->base.id; | |
2235 | plane_resp->possible_crtcs = plane->possible_crtcs; | |
778ad903 | 2236 | plane_resp->gamma_size = 0; |
8cf5c917 JB |
2237 | |
2238 | /* | |
2239 | * This ioctl is called twice, once to determine how much space is | |
2240 | * needed, and the 2nd time to fill it. | |
2241 | */ | |
2242 | if (plane->format_count && | |
2243 | (plane_resp->count_format_types >= plane->format_count)) { | |
81f6c7f8 | 2244 | format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; |
8cf5c917 JB |
2245 | if (copy_to_user(format_ptr, |
2246 | plane->format_types, | |
2247 | sizeof(uint32_t) * plane->format_count)) { | |
2248 | ret = -EFAULT; | |
2249 | goto out; | |
2250 | } | |
2251 | } | |
2252 | plane_resp->count_format_types = plane->format_count; | |
2253 | ||
2254 | out: | |
84849903 | 2255 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
2256 | return ret; |
2257 | } | |
2258 | ||
b36552b3 MR |
2259 | /* |
2260 | * setplane_internal - setplane handler for internal callers | |
8cf5c917 | 2261 | * |
b36552b3 MR |
2262 | * Note that we assume an extra reference has already been taken on fb. If the |
2263 | * update fails, this reference will be dropped before return; if it succeeds, | |
2264 | * the previous framebuffer (if any) will be unreferenced instead. | |
c8e32cc1 | 2265 | * |
b36552b3 | 2266 | * src_{x,y,w,h} are provided in 16.16 fixed point format |
8cf5c917 | 2267 | */ |
17cfd91f CW |
2268 | static int setplane_internal(struct drm_plane *plane, |
2269 | struct drm_crtc *crtc, | |
b36552b3 MR |
2270 | struct drm_framebuffer *fb, |
2271 | int32_t crtc_x, int32_t crtc_y, | |
2272 | uint32_t crtc_w, uint32_t crtc_h, | |
2273 | /* src_{x,y,w,h} values are 16.16 fixed point */ | |
2274 | uint32_t src_x, uint32_t src_y, | |
2275 | uint32_t src_w, uint32_t src_h) | |
8cf5c917 | 2276 | { |
17cfd91f | 2277 | struct drm_device *dev = plane->dev; |
b36552b3 | 2278 | struct drm_framebuffer *old_fb = NULL; |
8cf5c917 | 2279 | int ret = 0; |
42ef8789 | 2280 | unsigned int fb_width, fb_height; |
62443be6 | 2281 | int i; |
8cf5c917 | 2282 | |
8cf5c917 | 2283 | /* No fb means shut it down */ |
b36552b3 | 2284 | if (!fb) { |
6c2a7532 DV |
2285 | drm_modeset_lock_all(dev); |
2286 | old_fb = plane->fb; | |
731cce48 DV |
2287 | ret = plane->funcs->disable_plane(plane); |
2288 | if (!ret) { | |
2289 | plane->crtc = NULL; | |
2290 | plane->fb = NULL; | |
2291 | } else { | |
2292 | old_fb = NULL; | |
2293 | } | |
6c2a7532 | 2294 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
2295 | goto out; |
2296 | } | |
2297 | ||
7f994f3f MR |
2298 | /* Check whether this plane is usable on this CRTC */ |
2299 | if (!(plane->possible_crtcs & drm_crtc_mask(crtc))) { | |
2300 | DRM_DEBUG_KMS("Invalid crtc for plane\n"); | |
2301 | ret = -EINVAL; | |
2302 | goto out; | |
2303 | } | |
2304 | ||
62443be6 VS |
2305 | /* Check whether this plane supports the fb pixel format. */ |
2306 | for (i = 0; i < plane->format_count; i++) | |
2307 | if (fb->pixel_format == plane->format_types[i]) | |
2308 | break; | |
2309 | if (i == plane->format_count) { | |
6ba6d03e VS |
2310 | DRM_DEBUG_KMS("Invalid pixel format %s\n", |
2311 | drm_get_format_name(fb->pixel_format)); | |
62443be6 VS |
2312 | ret = -EINVAL; |
2313 | goto out; | |
2314 | } | |
2315 | ||
42ef8789 VS |
2316 | fb_width = fb->width << 16; |
2317 | fb_height = fb->height << 16; | |
2318 | ||
2319 | /* Make sure source coordinates are inside the fb. */ | |
b36552b3 MR |
2320 | if (src_w > fb_width || |
2321 | src_x > fb_width - src_w || | |
2322 | src_h > fb_height || | |
2323 | src_y > fb_height - src_h) { | |
42ef8789 VS |
2324 | DRM_DEBUG_KMS("Invalid source coordinates " |
2325 | "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", | |
b36552b3 MR |
2326 | src_w >> 16, ((src_w & 0xffff) * 15625) >> 10, |
2327 | src_h >> 16, ((src_h & 0xffff) * 15625) >> 10, | |
2328 | src_x >> 16, ((src_x & 0xffff) * 15625) >> 10, | |
2329 | src_y >> 16, ((src_y & 0xffff) * 15625) >> 10); | |
42ef8789 VS |
2330 | ret = -ENOSPC; |
2331 | goto out; | |
2332 | } | |
2333 | ||
6c2a7532 | 2334 | drm_modeset_lock_all(dev); |
0fe27f06 | 2335 | old_fb = plane->fb; |
8cf5c917 | 2336 | ret = plane->funcs->update_plane(plane, crtc, fb, |
b36552b3 MR |
2337 | crtc_x, crtc_y, crtc_w, crtc_h, |
2338 | src_x, src_y, src_w, src_h); | |
8cf5c917 JB |
2339 | if (!ret) { |
2340 | plane->crtc = crtc; | |
2341 | plane->fb = fb; | |
35f8badc | 2342 | fb = NULL; |
0fe27f06 DV |
2343 | } else { |
2344 | old_fb = NULL; | |
8cf5c917 | 2345 | } |
6c2a7532 | 2346 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
2347 | |
2348 | out: | |
6c2a7532 DV |
2349 | if (fb) |
2350 | drm_framebuffer_unreference(fb); | |
2351 | if (old_fb) | |
2352 | drm_framebuffer_unreference(old_fb); | |
8cf5c917 JB |
2353 | |
2354 | return ret; | |
b36552b3 MR |
2355 | |
2356 | } | |
2357 | ||
2358 | /** | |
2359 | * drm_mode_setplane - configure a plane's configuration | |
2360 | * @dev: DRM device | |
2361 | * @data: ioctl data* | |
2362 | * @file_priv: DRM file info | |
2363 | * | |
2364 | * Set plane configuration, including placement, fb, scaling, and other factors. | |
2365 | * Or pass a NULL fb to disable (planes may be disabled without providing a | |
2366 | * valid crtc). | |
2367 | * | |
2368 | * Returns: | |
2369 | * Zero on success, errno on failure. | |
2370 | */ | |
2371 | int drm_mode_setplane(struct drm_device *dev, void *data, | |
2372 | struct drm_file *file_priv) | |
2373 | { | |
2374 | struct drm_mode_set_plane *plane_req = data; | |
2375 | struct drm_mode_object *obj; | |
2376 | struct drm_plane *plane; | |
2377 | struct drm_crtc *crtc = NULL; | |
2378 | struct drm_framebuffer *fb = NULL; | |
2379 | ||
2380 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2381 | return -EINVAL; | |
2382 | ||
2383 | /* Give drivers some help against integer overflows */ | |
2384 | if (plane_req->crtc_w > INT_MAX || | |
2385 | plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w || | |
2386 | plane_req->crtc_h > INT_MAX || | |
2387 | plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) { | |
2388 | DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", | |
2389 | plane_req->crtc_w, plane_req->crtc_h, | |
2390 | plane_req->crtc_x, plane_req->crtc_y); | |
2391 | return -ERANGE; | |
2392 | } | |
2393 | ||
2394 | /* | |
2395 | * First, find the plane, crtc, and fb objects. If not available, | |
2396 | * we don't bother to call the driver. | |
2397 | */ | |
2398 | obj = drm_mode_object_find(dev, plane_req->plane_id, | |
2399 | DRM_MODE_OBJECT_PLANE); | |
2400 | if (!obj) { | |
2401 | DRM_DEBUG_KMS("Unknown plane ID %d\n", | |
2402 | plane_req->plane_id); | |
2403 | return -ENOENT; | |
2404 | } | |
2405 | plane = obj_to_plane(obj); | |
2406 | ||
2407 | if (plane_req->fb_id) { | |
2408 | fb = drm_framebuffer_lookup(dev, plane_req->fb_id); | |
2409 | if (!fb) { | |
2410 | DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", | |
2411 | plane_req->fb_id); | |
2412 | return -ENOENT; | |
2413 | } | |
2414 | ||
2415 | obj = drm_mode_object_find(dev, plane_req->crtc_id, | |
2416 | DRM_MODE_OBJECT_CRTC); | |
2417 | if (!obj) { | |
2418 | DRM_DEBUG_KMS("Unknown crtc ID %d\n", | |
2419 | plane_req->crtc_id); | |
2420 | return -ENOENT; | |
2421 | } | |
2422 | crtc = obj_to_crtc(obj); | |
2423 | } | |
2424 | ||
161d0dc1 MR |
2425 | /* |
2426 | * setplane_internal will take care of deref'ing either the old or new | |
2427 | * framebuffer depending on success. | |
2428 | */ | |
17cfd91f | 2429 | return setplane_internal(plane, crtc, fb, |
b36552b3 MR |
2430 | plane_req->crtc_x, plane_req->crtc_y, |
2431 | plane_req->crtc_w, plane_req->crtc_h, | |
2432 | plane_req->src_x, plane_req->src_y, | |
2433 | plane_req->src_w, plane_req->src_h); | |
8cf5c917 JB |
2434 | } |
2435 | ||
2d13b679 DV |
2436 | /** |
2437 | * drm_mode_set_config_internal - helper to call ->set_config | |
2438 | * @set: modeset config to set | |
2439 | * | |
2440 | * This is a little helper to wrap internal calls to the ->set_config driver | |
2441 | * interface. The only thing it adds is correct refcounting dance. | |
c8e32cc1 DV |
2442 | * |
2443 | * Returns: | |
2444 | * Zero on success, errno on failure. | |
2d13b679 DV |
2445 | */ |
2446 | int drm_mode_set_config_internal(struct drm_mode_set *set) | |
2447 | { | |
2448 | struct drm_crtc *crtc = set->crtc; | |
5cef29aa DV |
2449 | struct drm_framebuffer *fb; |
2450 | struct drm_crtc *tmp; | |
b0d12325 DV |
2451 | int ret; |
2452 | ||
5cef29aa DV |
2453 | /* |
2454 | * NOTE: ->set_config can also disable other crtcs (if we steal all | |
2455 | * connectors from it), hence we need to refcount the fbs across all | |
2456 | * crtcs. Atomic modeset will have saner semantics ... | |
2457 | */ | |
2458 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) | |
f4510a27 | 2459 | tmp->old_fb = tmp->primary->fb; |
5cef29aa | 2460 | |
b0d12325 | 2461 | fb = set->fb; |
2d13b679 | 2462 | |
b0d12325 DV |
2463 | ret = crtc->funcs->set_config(set); |
2464 | if (ret == 0) { | |
e13161af | 2465 | crtc->primary->crtc = crtc; |
0fe27f06 | 2466 | crtc->primary->fb = fb; |
5cef29aa | 2467 | } |
cc85e121 | 2468 | |
5cef29aa | 2469 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) { |
f4510a27 MR |
2470 | if (tmp->primary->fb) |
2471 | drm_framebuffer_reference(tmp->primary->fb); | |
5cef29aa DV |
2472 | if (tmp->old_fb) |
2473 | drm_framebuffer_unreference(tmp->old_fb); | |
b0d12325 DV |
2474 | } |
2475 | ||
2476 | return ret; | |
2d13b679 DV |
2477 | } |
2478 | EXPORT_SYMBOL(drm_mode_set_config_internal); | |
2479 | ||
af93629d MR |
2480 | /** |
2481 | * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the | |
2482 | * CRTC viewport | |
2483 | * @crtc: CRTC that framebuffer will be displayed on | |
2484 | * @x: x panning | |
2485 | * @y: y panning | |
2486 | * @mode: mode that framebuffer will be displayed under | |
2487 | * @fb: framebuffer to check size of | |
c11e9283 | 2488 | */ |
af93629d MR |
2489 | int drm_crtc_check_viewport(const struct drm_crtc *crtc, |
2490 | int x, int y, | |
2491 | const struct drm_display_mode *mode, | |
2492 | const struct drm_framebuffer *fb) | |
c11e9283 DL |
2493 | |
2494 | { | |
2495 | int hdisplay, vdisplay; | |
2496 | ||
2497 | hdisplay = mode->hdisplay; | |
2498 | vdisplay = mode->vdisplay; | |
2499 | ||
a0c1bbb0 DL |
2500 | if (drm_mode_is_stereo(mode)) { |
2501 | struct drm_display_mode adjusted = *mode; | |
2502 | ||
2503 | drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE); | |
2504 | hdisplay = adjusted.crtc_hdisplay; | |
2505 | vdisplay = adjusted.crtc_vdisplay; | |
2506 | } | |
2507 | ||
c11e9283 DL |
2508 | if (crtc->invert_dimensions) |
2509 | swap(hdisplay, vdisplay); | |
2510 | ||
2511 | if (hdisplay > fb->width || | |
2512 | vdisplay > fb->height || | |
2513 | x > fb->width - hdisplay || | |
2514 | y > fb->height - vdisplay) { | |
2515 | DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n", | |
2516 | fb->width, fb->height, hdisplay, vdisplay, x, y, | |
2517 | crtc->invert_dimensions ? " (inverted)" : ""); | |
2518 | return -ENOSPC; | |
2519 | } | |
2520 | ||
2521 | return 0; | |
2522 | } | |
af93629d | 2523 | EXPORT_SYMBOL(drm_crtc_check_viewport); |
c11e9283 | 2524 | |
f453ba04 DA |
2525 | /** |
2526 | * drm_mode_setcrtc - set CRTC configuration | |
065a50ed DV |
2527 | * @dev: drm device for the ioctl |
2528 | * @data: data pointer for the ioctl | |
2529 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2530 | * |
f453ba04 DA |
2531 | * Build a new CRTC configuration based on user request. |
2532 | * | |
2533 | * Called by the user via ioctl. | |
2534 | * | |
c8e32cc1 | 2535 | * Returns: |
f453ba04 DA |
2536 | * Zero on success, errno on failure. |
2537 | */ | |
2538 | int drm_mode_setcrtc(struct drm_device *dev, void *data, | |
2539 | struct drm_file *file_priv) | |
2540 | { | |
2541 | struct drm_mode_config *config = &dev->mode_config; | |
2542 | struct drm_mode_crtc *crtc_req = data; | |
6653cc8d | 2543 | struct drm_crtc *crtc; |
f453ba04 DA |
2544 | struct drm_connector **connector_set = NULL, *connector; |
2545 | struct drm_framebuffer *fb = NULL; | |
2546 | struct drm_display_mode *mode = NULL; | |
2547 | struct drm_mode_set set; | |
2548 | uint32_t __user *set_connectors_ptr; | |
4a1b0714 | 2549 | int ret; |
f453ba04 DA |
2550 | int i; |
2551 | ||
fb3b06c8 DA |
2552 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2553 | return -EINVAL; | |
2554 | ||
1d97e915 VS |
2555 | /* For some reason crtc x/y offsets are signed internally. */ |
2556 | if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX) | |
2557 | return -ERANGE; | |
2558 | ||
84849903 | 2559 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
2560 | crtc = drm_crtc_find(dev, crtc_req->crtc_id); |
2561 | if (!crtc) { | |
58367ed6 | 2562 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); |
f27657f2 | 2563 | ret = -ENOENT; |
f453ba04 DA |
2564 | goto out; |
2565 | } | |
9440106b | 2566 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
f453ba04 DA |
2567 | |
2568 | if (crtc_req->mode_valid) { | |
2569 | /* If we have a mode we need a framebuffer. */ | |
2570 | /* If we pass -1, set the mode with the currently bound fb */ | |
2571 | if (crtc_req->fb_id == -1) { | |
f4510a27 | 2572 | if (!crtc->primary->fb) { |
6653cc8d VS |
2573 | DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); |
2574 | ret = -EINVAL; | |
2575 | goto out; | |
f453ba04 | 2576 | } |
f4510a27 | 2577 | fb = crtc->primary->fb; |
b0d12325 DV |
2578 | /* Make refcounting symmetric with the lookup path. */ |
2579 | drm_framebuffer_reference(fb); | |
f453ba04 | 2580 | } else { |
786b99ed DV |
2581 | fb = drm_framebuffer_lookup(dev, crtc_req->fb_id); |
2582 | if (!fb) { | |
58367ed6 ZY |
2583 | DRM_DEBUG_KMS("Unknown FB ID%d\n", |
2584 | crtc_req->fb_id); | |
37c4e705 | 2585 | ret = -ENOENT; |
f453ba04 DA |
2586 | goto out; |
2587 | } | |
f453ba04 DA |
2588 | } |
2589 | ||
2590 | mode = drm_mode_create(dev); | |
ee34ab5b VS |
2591 | if (!mode) { |
2592 | ret = -ENOMEM; | |
2593 | goto out; | |
2594 | } | |
2595 | ||
90367bf6 VS |
2596 | ret = drm_crtc_convert_umode(mode, &crtc_req->mode); |
2597 | if (ret) { | |
2598 | DRM_DEBUG_KMS("Invalid mode\n"); | |
2599 | goto out; | |
2600 | } | |
2601 | ||
f453ba04 | 2602 | drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); |
5f61bb42 | 2603 | |
c11e9283 DL |
2604 | ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y, |
2605 | mode, fb); | |
2606 | if (ret) | |
5f61bb42 | 2607 | goto out; |
c11e9283 | 2608 | |
f453ba04 DA |
2609 | } |
2610 | ||
2611 | if (crtc_req->count_connectors == 0 && mode) { | |
58367ed6 | 2612 | DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); |
f453ba04 DA |
2613 | ret = -EINVAL; |
2614 | goto out; | |
2615 | } | |
2616 | ||
7781de74 | 2617 | if (crtc_req->count_connectors > 0 && (!mode || !fb)) { |
58367ed6 | 2618 | DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", |
f453ba04 DA |
2619 | crtc_req->count_connectors); |
2620 | ret = -EINVAL; | |
2621 | goto out; | |
2622 | } | |
2623 | ||
2624 | if (crtc_req->count_connectors > 0) { | |
2625 | u32 out_id; | |
2626 | ||
2627 | /* Avoid unbounded kernel memory allocation */ | |
2628 | if (crtc_req->count_connectors > config->num_connector) { | |
2629 | ret = -EINVAL; | |
2630 | goto out; | |
2631 | } | |
2632 | ||
2633 | connector_set = kmalloc(crtc_req->count_connectors * | |
2634 | sizeof(struct drm_connector *), | |
2635 | GFP_KERNEL); | |
2636 | if (!connector_set) { | |
2637 | ret = -ENOMEM; | |
2638 | goto out; | |
2639 | } | |
2640 | ||
2641 | for (i = 0; i < crtc_req->count_connectors; i++) { | |
81f6c7f8 | 2642 | set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; |
f453ba04 DA |
2643 | if (get_user(out_id, &set_connectors_ptr[i])) { |
2644 | ret = -EFAULT; | |
2645 | goto out; | |
2646 | } | |
2647 | ||
a2b34e22 RC |
2648 | connector = drm_connector_find(dev, out_id); |
2649 | if (!connector) { | |
58367ed6 ZY |
2650 | DRM_DEBUG_KMS("Connector id %d unknown\n", |
2651 | out_id); | |
f27657f2 | 2652 | ret = -ENOENT; |
f453ba04 DA |
2653 | goto out; |
2654 | } | |
9440106b JG |
2655 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
2656 | connector->base.id, | |
25933820 | 2657 | connector->name); |
f453ba04 DA |
2658 | |
2659 | connector_set[i] = connector; | |
2660 | } | |
2661 | } | |
2662 | ||
2663 | set.crtc = crtc; | |
2664 | set.x = crtc_req->x; | |
2665 | set.y = crtc_req->y; | |
2666 | set.mode = mode; | |
2667 | set.connectors = connector_set; | |
2668 | set.num_connectors = crtc_req->count_connectors; | |
5ef5f72f | 2669 | set.fb = fb; |
2d13b679 | 2670 | ret = drm_mode_set_config_internal(&set); |
f453ba04 DA |
2671 | |
2672 | out: | |
b0d12325 DV |
2673 | if (fb) |
2674 | drm_framebuffer_unreference(fb); | |
2675 | ||
f453ba04 | 2676 | kfree(connector_set); |
ee34ab5b | 2677 | drm_mode_destroy(dev, mode); |
84849903 | 2678 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
2679 | return ret; |
2680 | } | |
2681 | ||
161d0dc1 MR |
2682 | /** |
2683 | * drm_mode_cursor_universal - translate legacy cursor ioctl call into a | |
2684 | * universal plane handler call | |
2685 | * @crtc: crtc to update cursor for | |
2686 | * @req: data pointer for the ioctl | |
2687 | * @file_priv: drm file for the ioctl call | |
2688 | * | |
2689 | * Legacy cursor ioctl's work directly with driver buffer handles. To | |
2690 | * translate legacy ioctl calls into universal plane handler calls, we need to | |
2691 | * wrap the native buffer handle in a drm_framebuffer. | |
2692 | * | |
2693 | * Note that we assume any handle passed to the legacy ioctls was a 32-bit ARGB | |
2694 | * buffer with a pitch of 4*width; the universal plane interface should be used | |
2695 | * directly in cases where the hardware can support other buffer settings and | |
2696 | * userspace wants to make use of these capabilities. | |
2697 | * | |
2698 | * Returns: | |
2699 | * Zero on success, errno on failure. | |
2700 | */ | |
2701 | static int drm_mode_cursor_universal(struct drm_crtc *crtc, | |
2702 | struct drm_mode_cursor2 *req, | |
2703 | struct drm_file *file_priv) | |
2704 | { | |
2705 | struct drm_device *dev = crtc->dev; | |
2706 | struct drm_framebuffer *fb = NULL; | |
2707 | struct drm_mode_fb_cmd2 fbreq = { | |
2708 | .width = req->width, | |
2709 | .height = req->height, | |
2710 | .pixel_format = DRM_FORMAT_ARGB8888, | |
2711 | .pitches = { req->width * 4 }, | |
2712 | .handles = { req->handle }, | |
2713 | }; | |
2714 | int32_t crtc_x, crtc_y; | |
2715 | uint32_t crtc_w = 0, crtc_h = 0; | |
2716 | uint32_t src_w = 0, src_h = 0; | |
2717 | int ret = 0; | |
2718 | ||
2719 | BUG_ON(!crtc->cursor); | |
2720 | ||
2721 | /* | |
2722 | * Obtain fb we'll be using (either new or existing) and take an extra | |
2723 | * reference to it if fb != null. setplane will take care of dropping | |
2724 | * the reference if the plane update fails. | |
2725 | */ | |
2726 | if (req->flags & DRM_MODE_CURSOR_BO) { | |
2727 | if (req->handle) { | |
2728 | fb = add_framebuffer_internal(dev, &fbreq, file_priv); | |
2729 | if (IS_ERR(fb)) { | |
2730 | DRM_DEBUG_KMS("failed to wrap cursor buffer in drm framebuffer\n"); | |
2731 | return PTR_ERR(fb); | |
2732 | } | |
2733 | ||
2734 | drm_framebuffer_reference(fb); | |
2735 | } else { | |
2736 | fb = NULL; | |
2737 | } | |
2738 | } else { | |
2739 | mutex_lock(&dev->mode_config.mutex); | |
2740 | fb = crtc->cursor->fb; | |
2741 | if (fb) | |
2742 | drm_framebuffer_reference(fb); | |
2743 | mutex_unlock(&dev->mode_config.mutex); | |
2744 | } | |
2745 | ||
2746 | if (req->flags & DRM_MODE_CURSOR_MOVE) { | |
2747 | crtc_x = req->x; | |
2748 | crtc_y = req->y; | |
2749 | } else { | |
2750 | crtc_x = crtc->cursor_x; | |
2751 | crtc_y = crtc->cursor_y; | |
2752 | } | |
2753 | ||
2754 | if (fb) { | |
2755 | crtc_w = fb->width; | |
2756 | crtc_h = fb->height; | |
2757 | src_w = fb->width << 16; | |
2758 | src_h = fb->height << 16; | |
2759 | } | |
2760 | ||
2761 | /* | |
2762 | * setplane_internal will take care of deref'ing either the old or new | |
2763 | * framebuffer depending on success. | |
2764 | */ | |
17cfd91f | 2765 | ret = setplane_internal(crtc->cursor, crtc, fb, |
161d0dc1 MR |
2766 | crtc_x, crtc_y, crtc_w, crtc_h, |
2767 | 0, 0, src_w, src_h); | |
2768 | ||
2769 | /* Update successful; save new cursor position, if necessary */ | |
2770 | if (ret == 0 && req->flags & DRM_MODE_CURSOR_MOVE) { | |
2771 | crtc->cursor_x = req->x; | |
2772 | crtc->cursor_y = req->y; | |
2773 | } | |
2774 | ||
2775 | return ret; | |
2776 | } | |
2777 | ||
4c813d4d DA |
2778 | static int drm_mode_cursor_common(struct drm_device *dev, |
2779 | struct drm_mode_cursor2 *req, | |
2780 | struct drm_file *file_priv) | |
f453ba04 | 2781 | { |
f453ba04 DA |
2782 | struct drm_crtc *crtc; |
2783 | int ret = 0; | |
2784 | ||
fb3b06c8 DA |
2785 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2786 | return -EINVAL; | |
2787 | ||
7c4eaca4 | 2788 | if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) |
f453ba04 | 2789 | return -EINVAL; |
f453ba04 | 2790 | |
a2b34e22 RC |
2791 | crtc = drm_crtc_find(dev, req->crtc_id); |
2792 | if (!crtc) { | |
58367ed6 | 2793 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); |
f27657f2 | 2794 | return -ENOENT; |
f453ba04 | 2795 | } |
f453ba04 | 2796 | |
161d0dc1 MR |
2797 | /* |
2798 | * If this crtc has a universal cursor plane, call that plane's update | |
2799 | * handler rather than using legacy cursor handlers. | |
2800 | */ | |
2801 | if (crtc->cursor) | |
2802 | return drm_mode_cursor_universal(crtc, req, file_priv); | |
2803 | ||
51fd371b | 2804 | drm_modeset_lock(&crtc->mutex, NULL); |
f453ba04 | 2805 | if (req->flags & DRM_MODE_CURSOR_BO) { |
4c813d4d | 2806 | if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) { |
f453ba04 DA |
2807 | ret = -ENXIO; |
2808 | goto out; | |
2809 | } | |
2810 | /* Turns off the cursor if handle is 0 */ | |
4c813d4d DA |
2811 | if (crtc->funcs->cursor_set2) |
2812 | ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle, | |
2813 | req->width, req->height, req->hot_x, req->hot_y); | |
2814 | else | |
2815 | ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, | |
2816 | req->width, req->height); | |
f453ba04 DA |
2817 | } |
2818 | ||
2819 | if (req->flags & DRM_MODE_CURSOR_MOVE) { | |
2820 | if (crtc->funcs->cursor_move) { | |
2821 | ret = crtc->funcs->cursor_move(crtc, req->x, req->y); | |
2822 | } else { | |
f453ba04 DA |
2823 | ret = -EFAULT; |
2824 | goto out; | |
2825 | } | |
2826 | } | |
2827 | out: | |
51fd371b | 2828 | drm_modeset_unlock(&crtc->mutex); |
dac35663 | 2829 | |
f453ba04 | 2830 | return ret; |
4c813d4d DA |
2831 | |
2832 | } | |
c8e32cc1 DV |
2833 | |
2834 | ||
2835 | /** | |
2836 | * drm_mode_cursor_ioctl - set CRTC's cursor configuration | |
2837 | * @dev: drm device for the ioctl | |
2838 | * @data: data pointer for the ioctl | |
2839 | * @file_priv: drm file for the ioctl call | |
2840 | * | |
2841 | * Set the cursor configuration based on user request. | |
2842 | * | |
2843 | * Called by the user via ioctl. | |
2844 | * | |
2845 | * Returns: | |
2846 | * Zero on success, errno on failure. | |
2847 | */ | |
4c813d4d | 2848 | int drm_mode_cursor_ioctl(struct drm_device *dev, |
c8e32cc1 | 2849 | void *data, struct drm_file *file_priv) |
4c813d4d DA |
2850 | { |
2851 | struct drm_mode_cursor *req = data; | |
2852 | struct drm_mode_cursor2 new_req; | |
2853 | ||
2854 | memcpy(&new_req, req, sizeof(struct drm_mode_cursor)); | |
2855 | new_req.hot_x = new_req.hot_y = 0; | |
2856 | ||
2857 | return drm_mode_cursor_common(dev, &new_req, file_priv); | |
2858 | } | |
2859 | ||
c8e32cc1 DV |
2860 | /** |
2861 | * drm_mode_cursor2_ioctl - set CRTC's cursor configuration | |
2862 | * @dev: drm device for the ioctl | |
2863 | * @data: data pointer for the ioctl | |
2864 | * @file_priv: drm file for the ioctl call | |
2865 | * | |
2866 | * Set the cursor configuration based on user request. This implements the 2nd | |
2867 | * version of the cursor ioctl, which allows userspace to additionally specify | |
2868 | * the hotspot of the pointer. | |
2869 | * | |
2870 | * Called by the user via ioctl. | |
2871 | * | |
2872 | * Returns: | |
2873 | * Zero on success, errno on failure. | |
2874 | */ | |
4c813d4d DA |
2875 | int drm_mode_cursor2_ioctl(struct drm_device *dev, |
2876 | void *data, struct drm_file *file_priv) | |
2877 | { | |
2878 | struct drm_mode_cursor2 *req = data; | |
2879 | return drm_mode_cursor_common(dev, req, file_priv); | |
f453ba04 DA |
2880 | } |
2881 | ||
c8e32cc1 DV |
2882 | /** |
2883 | * drm_mode_legacy_fb_format - compute drm fourcc code from legacy description | |
2884 | * @bpp: bits per pixels | |
2885 | * @depth: bit depth per pixel | |
2886 | * | |
2887 | * Computes a drm fourcc pixel format code for the given @bpp/@depth values. | |
2888 | * Useful in fbdev emulation code, since that deals in those values. | |
2889 | */ | |
308e5bcb JB |
2890 | uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth) |
2891 | { | |
2892 | uint32_t fmt; | |
2893 | ||
2894 | switch (bpp) { | |
2895 | case 8: | |
d84f031b | 2896 | fmt = DRM_FORMAT_C8; |
308e5bcb JB |
2897 | break; |
2898 | case 16: | |
2899 | if (depth == 15) | |
04b3924d | 2900 | fmt = DRM_FORMAT_XRGB1555; |
308e5bcb | 2901 | else |
04b3924d | 2902 | fmt = DRM_FORMAT_RGB565; |
308e5bcb JB |
2903 | break; |
2904 | case 24: | |
04b3924d | 2905 | fmt = DRM_FORMAT_RGB888; |
308e5bcb JB |
2906 | break; |
2907 | case 32: | |
2908 | if (depth == 24) | |
04b3924d | 2909 | fmt = DRM_FORMAT_XRGB8888; |
308e5bcb | 2910 | else if (depth == 30) |
04b3924d | 2911 | fmt = DRM_FORMAT_XRGB2101010; |
308e5bcb | 2912 | else |
04b3924d | 2913 | fmt = DRM_FORMAT_ARGB8888; |
308e5bcb JB |
2914 | break; |
2915 | default: | |
04b3924d VS |
2916 | DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n"); |
2917 | fmt = DRM_FORMAT_XRGB8888; | |
308e5bcb JB |
2918 | break; |
2919 | } | |
2920 | ||
2921 | return fmt; | |
2922 | } | |
2923 | EXPORT_SYMBOL(drm_mode_legacy_fb_format); | |
2924 | ||
f453ba04 DA |
2925 | /** |
2926 | * drm_mode_addfb - add an FB to the graphics configuration | |
065a50ed DV |
2927 | * @dev: drm device for the ioctl |
2928 | * @data: data pointer for the ioctl | |
2929 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2930 | * |
c8e32cc1 DV |
2931 | * Add a new FB to the specified CRTC, given a user request. This is the |
2932 | * original addfb ioclt which only supported RGB formats. | |
f453ba04 DA |
2933 | * |
2934 | * Called by the user via ioctl. | |
2935 | * | |
c8e32cc1 | 2936 | * Returns: |
f453ba04 DA |
2937 | * Zero on success, errno on failure. |
2938 | */ | |
2939 | int drm_mode_addfb(struct drm_device *dev, | |
2940 | void *data, struct drm_file *file_priv) | |
2941 | { | |
308e5bcb JB |
2942 | struct drm_mode_fb_cmd *or = data; |
2943 | struct drm_mode_fb_cmd2 r = {}; | |
2944 | struct drm_mode_config *config = &dev->mode_config; | |
2945 | struct drm_framebuffer *fb; | |
2946 | int ret = 0; | |
2947 | ||
2948 | /* Use new struct with format internally */ | |
2949 | r.fb_id = or->fb_id; | |
2950 | r.width = or->width; | |
2951 | r.height = or->height; | |
2952 | r.pitches[0] = or->pitch; | |
2953 | r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth); | |
2954 | r.handles[0] = or->handle; | |
2955 | ||
2956 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2957 | return -EINVAL; | |
2958 | ||
acb4b992 | 2959 | if ((config->min_width > r.width) || (r.width > config->max_width)) |
308e5bcb | 2960 | return -EINVAL; |
acb4b992 JB |
2961 | |
2962 | if ((config->min_height > r.height) || (r.height > config->max_height)) | |
308e5bcb | 2963 | return -EINVAL; |
308e5bcb | 2964 | |
308e5bcb JB |
2965 | fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r); |
2966 | if (IS_ERR(fb)) { | |
1aa1b11c | 2967 | DRM_DEBUG_KMS("could not create framebuffer\n"); |
4b096ac1 | 2968 | return PTR_ERR(fb); |
308e5bcb JB |
2969 | } |
2970 | ||
4b096ac1 | 2971 | mutex_lock(&file_priv->fbs_lock); |
308e5bcb JB |
2972 | or->fb_id = fb->base.id; |
2973 | list_add(&fb->filp_head, &file_priv->fbs); | |
2974 | DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); | |
4b096ac1 | 2975 | mutex_unlock(&file_priv->fbs_lock); |
4b096ac1 | 2976 | |
308e5bcb JB |
2977 | return ret; |
2978 | } | |
2979 | ||
cff91b62 | 2980 | static int format_check(const struct drm_mode_fb_cmd2 *r) |
935b5977 VS |
2981 | { |
2982 | uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN; | |
2983 | ||
2984 | switch (format) { | |
2985 | case DRM_FORMAT_C8: | |
2986 | case DRM_FORMAT_RGB332: | |
2987 | case DRM_FORMAT_BGR233: | |
2988 | case DRM_FORMAT_XRGB4444: | |
2989 | case DRM_FORMAT_XBGR4444: | |
2990 | case DRM_FORMAT_RGBX4444: | |
2991 | case DRM_FORMAT_BGRX4444: | |
2992 | case DRM_FORMAT_ARGB4444: | |
2993 | case DRM_FORMAT_ABGR4444: | |
2994 | case DRM_FORMAT_RGBA4444: | |
2995 | case DRM_FORMAT_BGRA4444: | |
2996 | case DRM_FORMAT_XRGB1555: | |
2997 | case DRM_FORMAT_XBGR1555: | |
2998 | case DRM_FORMAT_RGBX5551: | |
2999 | case DRM_FORMAT_BGRX5551: | |
3000 | case DRM_FORMAT_ARGB1555: | |
3001 | case DRM_FORMAT_ABGR1555: | |
3002 | case DRM_FORMAT_RGBA5551: | |
3003 | case DRM_FORMAT_BGRA5551: | |
3004 | case DRM_FORMAT_RGB565: | |
3005 | case DRM_FORMAT_BGR565: | |
3006 | case DRM_FORMAT_RGB888: | |
3007 | case DRM_FORMAT_BGR888: | |
3008 | case DRM_FORMAT_XRGB8888: | |
3009 | case DRM_FORMAT_XBGR8888: | |
3010 | case DRM_FORMAT_RGBX8888: | |
3011 | case DRM_FORMAT_BGRX8888: | |
3012 | case DRM_FORMAT_ARGB8888: | |
3013 | case DRM_FORMAT_ABGR8888: | |
3014 | case DRM_FORMAT_RGBA8888: | |
3015 | case DRM_FORMAT_BGRA8888: | |
3016 | case DRM_FORMAT_XRGB2101010: | |
3017 | case DRM_FORMAT_XBGR2101010: | |
3018 | case DRM_FORMAT_RGBX1010102: | |
3019 | case DRM_FORMAT_BGRX1010102: | |
3020 | case DRM_FORMAT_ARGB2101010: | |
3021 | case DRM_FORMAT_ABGR2101010: | |
3022 | case DRM_FORMAT_RGBA1010102: | |
3023 | case DRM_FORMAT_BGRA1010102: | |
3024 | case DRM_FORMAT_YUYV: | |
3025 | case DRM_FORMAT_YVYU: | |
3026 | case DRM_FORMAT_UYVY: | |
3027 | case DRM_FORMAT_VYUY: | |
3028 | case DRM_FORMAT_AYUV: | |
3029 | case DRM_FORMAT_NV12: | |
3030 | case DRM_FORMAT_NV21: | |
3031 | case DRM_FORMAT_NV16: | |
3032 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
3033 | case DRM_FORMAT_NV24: |
3034 | case DRM_FORMAT_NV42: | |
935b5977 VS |
3035 | case DRM_FORMAT_YUV410: |
3036 | case DRM_FORMAT_YVU410: | |
3037 | case DRM_FORMAT_YUV411: | |
3038 | case DRM_FORMAT_YVU411: | |
3039 | case DRM_FORMAT_YUV420: | |
3040 | case DRM_FORMAT_YVU420: | |
3041 | case DRM_FORMAT_YUV422: | |
3042 | case DRM_FORMAT_YVU422: | |
3043 | case DRM_FORMAT_YUV444: | |
3044 | case DRM_FORMAT_YVU444: | |
3045 | return 0; | |
3046 | default: | |
23c453a4 VS |
3047 | DRM_DEBUG_KMS("invalid pixel format %s\n", |
3048 | drm_get_format_name(r->pixel_format)); | |
935b5977 VS |
3049 | return -EINVAL; |
3050 | } | |
3051 | } | |
3052 | ||
cff91b62 | 3053 | static int framebuffer_check(const struct drm_mode_fb_cmd2 *r) |
d1b45d5f VS |
3054 | { |
3055 | int ret, hsub, vsub, num_planes, i; | |
3056 | ||
3057 | ret = format_check(r); | |
3058 | if (ret) { | |
6ba6d03e VS |
3059 | DRM_DEBUG_KMS("bad framebuffer format %s\n", |
3060 | drm_get_format_name(r->pixel_format)); | |
d1b45d5f VS |
3061 | return ret; |
3062 | } | |
3063 | ||
3064 | hsub = drm_format_horz_chroma_subsampling(r->pixel_format); | |
3065 | vsub = drm_format_vert_chroma_subsampling(r->pixel_format); | |
3066 | num_planes = drm_format_num_planes(r->pixel_format); | |
3067 | ||
3068 | if (r->width == 0 || r->width % hsub) { | |
1aa1b11c | 3069 | DRM_DEBUG_KMS("bad framebuffer width %u\n", r->height); |
d1b45d5f VS |
3070 | return -EINVAL; |
3071 | } | |
3072 | ||
3073 | if (r->height == 0 || r->height % vsub) { | |
1aa1b11c | 3074 | DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height); |
d1b45d5f VS |
3075 | return -EINVAL; |
3076 | } | |
3077 | ||
3078 | for (i = 0; i < num_planes; i++) { | |
3079 | unsigned int width = r->width / (i != 0 ? hsub : 1); | |
b180b5d1 VS |
3080 | unsigned int height = r->height / (i != 0 ? vsub : 1); |
3081 | unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i); | |
d1b45d5f VS |
3082 | |
3083 | if (!r->handles[i]) { | |
1aa1b11c | 3084 | DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i); |
d1b45d5f VS |
3085 | return -EINVAL; |
3086 | } | |
3087 | ||
b180b5d1 VS |
3088 | if ((uint64_t) width * cpp > UINT_MAX) |
3089 | return -ERANGE; | |
3090 | ||
3091 | if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX) | |
3092 | return -ERANGE; | |
3093 | ||
3094 | if (r->pitches[i] < width * cpp) { | |
1aa1b11c | 3095 | DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i); |
d1b45d5f VS |
3096 | return -EINVAL; |
3097 | } | |
3098 | } | |
3099 | ||
3100 | return 0; | |
3101 | } | |
3102 | ||
c394c2b0 MR |
3103 | static struct drm_framebuffer *add_framebuffer_internal(struct drm_device *dev, |
3104 | struct drm_mode_fb_cmd2 *r, | |
3105 | struct drm_file *file_priv) | |
308e5bcb | 3106 | { |
f453ba04 DA |
3107 | struct drm_mode_config *config = &dev->mode_config; |
3108 | struct drm_framebuffer *fb; | |
4a1b0714 | 3109 | int ret; |
f453ba04 | 3110 | |
e3cc3520 VS |
3111 | if (r->flags & ~DRM_MODE_FB_INTERLACED) { |
3112 | DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags); | |
c394c2b0 | 3113 | return ERR_PTR(-EINVAL); |
e3cc3520 VS |
3114 | } |
3115 | ||
f453ba04 | 3116 | if ((config->min_width > r->width) || (r->width > config->max_width)) { |
1aa1b11c | 3117 | DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n", |
8cf5c917 | 3118 | r->width, config->min_width, config->max_width); |
c394c2b0 | 3119 | return ERR_PTR(-EINVAL); |
f453ba04 DA |
3120 | } |
3121 | if ((config->min_height > r->height) || (r->height > config->max_height)) { | |
1aa1b11c | 3122 | DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n", |
8cf5c917 | 3123 | r->height, config->min_height, config->max_height); |
c394c2b0 | 3124 | return ERR_PTR(-EINVAL); |
f453ba04 DA |
3125 | } |
3126 | ||
d1b45d5f VS |
3127 | ret = framebuffer_check(r); |
3128 | if (ret) | |
c394c2b0 | 3129 | return ERR_PTR(ret); |
935b5977 | 3130 | |
f453ba04 | 3131 | fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); |
cce13ff7 | 3132 | if (IS_ERR(fb)) { |
1aa1b11c | 3133 | DRM_DEBUG_KMS("could not create framebuffer\n"); |
c394c2b0 | 3134 | return fb; |
f453ba04 DA |
3135 | } |
3136 | ||
4b096ac1 | 3137 | mutex_lock(&file_priv->fbs_lock); |
e0c8463a | 3138 | r->fb_id = fb->base.id; |
f453ba04 | 3139 | list_add(&fb->filp_head, &file_priv->fbs); |
9440106b | 3140 | DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); |
4b096ac1 | 3141 | mutex_unlock(&file_priv->fbs_lock); |
f453ba04 | 3142 | |
c394c2b0 MR |
3143 | return fb; |
3144 | } | |
4b096ac1 | 3145 | |
c394c2b0 MR |
3146 | /** |
3147 | * drm_mode_addfb2 - add an FB to the graphics configuration | |
3148 | * @dev: drm device for the ioctl | |
3149 | * @data: data pointer for the ioctl | |
3150 | * @file_priv: drm file for the ioctl call | |
3151 | * | |
3152 | * Add a new FB to the specified CRTC, given a user request with format. This is | |
3153 | * the 2nd version of the addfb ioctl, which supports multi-planar framebuffers | |
3154 | * and uses fourcc codes as pixel format specifiers. | |
3155 | * | |
3156 | * Called by the user via ioctl. | |
3157 | * | |
3158 | * Returns: | |
3159 | * Zero on success, errno on failure. | |
3160 | */ | |
3161 | int drm_mode_addfb2(struct drm_device *dev, | |
3162 | void *data, struct drm_file *file_priv) | |
3163 | { | |
3164 | struct drm_framebuffer *fb; | |
3165 | ||
3166 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
3167 | return -EINVAL; | |
3168 | ||
3169 | fb = add_framebuffer_internal(dev, data, file_priv); | |
3170 | if (IS_ERR(fb)) | |
3171 | return PTR_ERR(fb); | |
3172 | ||
3173 | return 0; | |
f453ba04 DA |
3174 | } |
3175 | ||
3176 | /** | |
3177 | * drm_mode_rmfb - remove an FB from the configuration | |
065a50ed DV |
3178 | * @dev: drm device for the ioctl |
3179 | * @data: data pointer for the ioctl | |
3180 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 3181 | * |
f453ba04 DA |
3182 | * Remove the FB specified by the user. |
3183 | * | |
3184 | * Called by the user via ioctl. | |
3185 | * | |
c8e32cc1 | 3186 | * Returns: |
f453ba04 DA |
3187 | * Zero on success, errno on failure. |
3188 | */ | |
3189 | int drm_mode_rmfb(struct drm_device *dev, | |
3190 | void *data, struct drm_file *file_priv) | |
3191 | { | |
f453ba04 DA |
3192 | struct drm_framebuffer *fb = NULL; |
3193 | struct drm_framebuffer *fbl = NULL; | |
3194 | uint32_t *id = data; | |
f453ba04 DA |
3195 | int found = 0; |
3196 | ||
fb3b06c8 DA |
3197 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3198 | return -EINVAL; | |
3199 | ||
4b096ac1 | 3200 | mutex_lock(&file_priv->fbs_lock); |
2b677e8c DV |
3201 | mutex_lock(&dev->mode_config.fb_lock); |
3202 | fb = __drm_framebuffer_lookup(dev, *id); | |
3203 | if (!fb) | |
3204 | goto fail_lookup; | |
3205 | ||
f453ba04 DA |
3206 | list_for_each_entry(fbl, &file_priv->fbs, filp_head) |
3207 | if (fb == fbl) | |
3208 | found = 1; | |
2b677e8c DV |
3209 | if (!found) |
3210 | goto fail_lookup; | |
3211 | ||
3212 | /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ | |
3213 | __drm_framebuffer_unregister(dev, fb); | |
f453ba04 | 3214 | |
4b096ac1 | 3215 | list_del_init(&fb->filp_head); |
2b677e8c | 3216 | mutex_unlock(&dev->mode_config.fb_lock); |
4b096ac1 | 3217 | mutex_unlock(&file_priv->fbs_lock); |
f453ba04 | 3218 | |
4b096ac1 | 3219 | drm_framebuffer_remove(fb); |
4b096ac1 | 3220 | |
2b677e8c DV |
3221 | return 0; |
3222 | ||
3223 | fail_lookup: | |
3224 | mutex_unlock(&dev->mode_config.fb_lock); | |
3225 | mutex_unlock(&file_priv->fbs_lock); | |
3226 | ||
37c4e705 | 3227 | return -ENOENT; |
f453ba04 DA |
3228 | } |
3229 | ||
3230 | /** | |
3231 | * drm_mode_getfb - get FB info | |
065a50ed DV |
3232 | * @dev: drm device for the ioctl |
3233 | * @data: data pointer for the ioctl | |
3234 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 3235 | * |
f453ba04 DA |
3236 | * Lookup the FB given its ID and return info about it. |
3237 | * | |
3238 | * Called by the user via ioctl. | |
3239 | * | |
c8e32cc1 | 3240 | * Returns: |
f453ba04 DA |
3241 | * Zero on success, errno on failure. |
3242 | */ | |
3243 | int drm_mode_getfb(struct drm_device *dev, | |
3244 | void *data, struct drm_file *file_priv) | |
3245 | { | |
3246 | struct drm_mode_fb_cmd *r = data; | |
f453ba04 | 3247 | struct drm_framebuffer *fb; |
58c0dca1 | 3248 | int ret; |
f453ba04 | 3249 | |
fb3b06c8 DA |
3250 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3251 | return -EINVAL; | |
3252 | ||
786b99ed | 3253 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
58c0dca1 | 3254 | if (!fb) |
37c4e705 | 3255 | return -ENOENT; |
f453ba04 DA |
3256 | |
3257 | r->height = fb->height; | |
3258 | r->width = fb->width; | |
3259 | r->depth = fb->depth; | |
3260 | r->bpp = fb->bits_per_pixel; | |
01f2c773 | 3261 | r->pitch = fb->pitches[0]; |
101b96f3 | 3262 | if (fb->funcs->create_handle) { |
09f308f7 | 3263 | if (file_priv->is_master || capable(CAP_SYS_ADMIN) || |
43683057 | 3264 | drm_is_control_client(file_priv)) { |
101b96f3 DH |
3265 | ret = fb->funcs->create_handle(fb, file_priv, |
3266 | &r->handle); | |
3267 | } else { | |
3268 | /* GET_FB() is an unprivileged ioctl so we must not | |
3269 | * return a buffer-handle to non-master processes! For | |
3270 | * backwards-compatibility reasons, we cannot make | |
3271 | * GET_FB() privileged, so just return an invalid handle | |
3272 | * for non-masters. */ | |
3273 | r->handle = 0; | |
3274 | ret = 0; | |
3275 | } | |
3276 | } else { | |
af26ef3b | 3277 | ret = -ENODEV; |
101b96f3 | 3278 | } |
f453ba04 | 3279 | |
58c0dca1 DV |
3280 | drm_framebuffer_unreference(fb); |
3281 | ||
f453ba04 DA |
3282 | return ret; |
3283 | } | |
3284 | ||
c8e32cc1 DV |
3285 | /** |
3286 | * drm_mode_dirtyfb_ioctl - flush frontbuffer rendering on an FB | |
3287 | * @dev: drm device for the ioctl | |
3288 | * @data: data pointer for the ioctl | |
3289 | * @file_priv: drm file for the ioctl call | |
3290 | * | |
3291 | * Lookup the FB and flush out the damaged area supplied by userspace as a clip | |
3292 | * rectangle list. Generic userspace which does frontbuffer rendering must call | |
3293 | * this ioctl to flush out the changes on manual-update display outputs, e.g. | |
3294 | * usb display-link, mipi manual update panels or edp panel self refresh modes. | |
3295 | * | |
3296 | * Modesetting drivers which always update the frontbuffer do not need to | |
3297 | * implement the corresponding ->dirty framebuffer callback. | |
3298 | * | |
3299 | * Called by the user via ioctl. | |
3300 | * | |
3301 | * Returns: | |
3302 | * Zero on success, errno on failure. | |
3303 | */ | |
884840aa JB |
3304 | int drm_mode_dirtyfb_ioctl(struct drm_device *dev, |
3305 | void *data, struct drm_file *file_priv) | |
3306 | { | |
3307 | struct drm_clip_rect __user *clips_ptr; | |
3308 | struct drm_clip_rect *clips = NULL; | |
3309 | struct drm_mode_fb_dirty_cmd *r = data; | |
884840aa JB |
3310 | struct drm_framebuffer *fb; |
3311 | unsigned flags; | |
3312 | int num_clips; | |
4a1b0714 | 3313 | int ret; |
884840aa | 3314 | |
fb3b06c8 DA |
3315 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3316 | return -EINVAL; | |
3317 | ||
786b99ed | 3318 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
4ccf097f | 3319 | if (!fb) |
37c4e705 | 3320 | return -ENOENT; |
884840aa JB |
3321 | |
3322 | num_clips = r->num_clips; | |
81f6c7f8 | 3323 | clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; |
884840aa JB |
3324 | |
3325 | if (!num_clips != !clips_ptr) { | |
3326 | ret = -EINVAL; | |
3327 | goto out_err1; | |
3328 | } | |
3329 | ||
3330 | flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags; | |
3331 | ||
3332 | /* If userspace annotates copy, clips must come in pairs */ | |
3333 | if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) { | |
3334 | ret = -EINVAL; | |
3335 | goto out_err1; | |
3336 | } | |
3337 | ||
3338 | if (num_clips && clips_ptr) { | |
a5cd3351 XW |
3339 | if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) { |
3340 | ret = -EINVAL; | |
3341 | goto out_err1; | |
3342 | } | |
884840aa JB |
3343 | clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL); |
3344 | if (!clips) { | |
3345 | ret = -ENOMEM; | |
3346 | goto out_err1; | |
3347 | } | |
3348 | ||
3349 | ret = copy_from_user(clips, clips_ptr, | |
3350 | num_clips * sizeof(*clips)); | |
e902a358 DC |
3351 | if (ret) { |
3352 | ret = -EFAULT; | |
884840aa | 3353 | goto out_err2; |
e902a358 | 3354 | } |
884840aa JB |
3355 | } |
3356 | ||
3357 | if (fb->funcs->dirty) { | |
02b00162 TH |
3358 | ret = fb->funcs->dirty(fb, file_priv, flags, r->color, |
3359 | clips, num_clips); | |
884840aa JB |
3360 | } else { |
3361 | ret = -ENOSYS; | |
884840aa JB |
3362 | } |
3363 | ||
3364 | out_err2: | |
3365 | kfree(clips); | |
3366 | out_err1: | |
4ccf097f DV |
3367 | drm_framebuffer_unreference(fb); |
3368 | ||
884840aa JB |
3369 | return ret; |
3370 | } | |
3371 | ||
3372 | ||
f453ba04 DA |
3373 | /** |
3374 | * drm_fb_release - remove and free the FBs on this file | |
065a50ed | 3375 | * @priv: drm file for the ioctl |
f453ba04 | 3376 | * |
f453ba04 DA |
3377 | * Destroy all the FBs associated with @filp. |
3378 | * | |
3379 | * Called by the user via ioctl. | |
3380 | * | |
c8e32cc1 | 3381 | * Returns: |
f453ba04 DA |
3382 | * Zero on success, errno on failure. |
3383 | */ | |
ea39f835 | 3384 | void drm_fb_release(struct drm_file *priv) |
f453ba04 | 3385 | { |
f453ba04 DA |
3386 | struct drm_device *dev = priv->minor->dev; |
3387 | struct drm_framebuffer *fb, *tfb; | |
3388 | ||
4b096ac1 | 3389 | mutex_lock(&priv->fbs_lock); |
f453ba04 | 3390 | list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { |
2b677e8c DV |
3391 | |
3392 | mutex_lock(&dev->mode_config.fb_lock); | |
3393 | /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ | |
3394 | __drm_framebuffer_unregister(dev, fb); | |
3395 | mutex_unlock(&dev->mode_config.fb_lock); | |
3396 | ||
4b096ac1 | 3397 | list_del_init(&fb->filp_head); |
2b677e8c DV |
3398 | |
3399 | /* This will also drop the fpriv->fbs reference. */ | |
f7eff60e | 3400 | drm_framebuffer_remove(fb); |
f453ba04 | 3401 | } |
4b096ac1 | 3402 | mutex_unlock(&priv->fbs_lock); |
f453ba04 DA |
3403 | } |
3404 | ||
c8e32cc1 DV |
3405 | /** |
3406 | * drm_property_create - create a new property type | |
3407 | * @dev: drm device | |
3408 | * @flags: flags specifying the property type | |
3409 | * @name: name of the property | |
3410 | * @num_values: number of pre-defined values | |
3411 | * | |
3412 | * This creates a new generic drm property which can then be attached to a drm | |
3413 | * object with drm_object_attach_property. The returned property object must be | |
3414 | * freed with drm_property_destroy. | |
3415 | * | |
3416 | * Returns: | |
3417 | * A pointer to the newly created property on success, NULL on failure. | |
3418 | */ | |
f453ba04 DA |
3419 | struct drm_property *drm_property_create(struct drm_device *dev, int flags, |
3420 | const char *name, int num_values) | |
3421 | { | |
3422 | struct drm_property *property = NULL; | |
6bfc56aa | 3423 | int ret; |
f453ba04 DA |
3424 | |
3425 | property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); | |
3426 | if (!property) | |
3427 | return NULL; | |
3428 | ||
98f75de4 RC |
3429 | property->dev = dev; |
3430 | ||
f453ba04 DA |
3431 | if (num_values) { |
3432 | property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL); | |
3433 | if (!property->values) | |
3434 | goto fail; | |
3435 | } | |
3436 | ||
6bfc56aa VS |
3437 | ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); |
3438 | if (ret) | |
3439 | goto fail; | |
3440 | ||
f453ba04 DA |
3441 | property->flags = flags; |
3442 | property->num_values = num_values; | |
3443 | INIT_LIST_HEAD(&property->enum_blob_list); | |
3444 | ||
471dd2ef | 3445 | if (name) { |
f453ba04 | 3446 | strncpy(property->name, name, DRM_PROP_NAME_LEN); |
471dd2ef VL |
3447 | property->name[DRM_PROP_NAME_LEN-1] = '\0'; |
3448 | } | |
f453ba04 DA |
3449 | |
3450 | list_add_tail(&property->head, &dev->mode_config.property_list); | |
5ea22f24 RC |
3451 | |
3452 | WARN_ON(!drm_property_type_valid(property)); | |
3453 | ||
f453ba04 DA |
3454 | return property; |
3455 | fail: | |
6bfc56aa | 3456 | kfree(property->values); |
f453ba04 DA |
3457 | kfree(property); |
3458 | return NULL; | |
3459 | } | |
3460 | EXPORT_SYMBOL(drm_property_create); | |
3461 | ||
c8e32cc1 | 3462 | /** |
2aa9d2bc | 3463 | * drm_property_create_enum - create a new enumeration property type |
c8e32cc1 DV |
3464 | * @dev: drm device |
3465 | * @flags: flags specifying the property type | |
3466 | * @name: name of the property | |
3467 | * @props: enumeration lists with property values | |
3468 | * @num_values: number of pre-defined values | |
3469 | * | |
3470 | * This creates a new generic drm property which can then be attached to a drm | |
3471 | * object with drm_object_attach_property. The returned property object must be | |
3472 | * freed with drm_property_destroy. | |
3473 | * | |
3474 | * Userspace is only allowed to set one of the predefined values for enumeration | |
3475 | * properties. | |
3476 | * | |
3477 | * Returns: | |
3478 | * A pointer to the newly created property on success, NULL on failure. | |
3479 | */ | |
4a67d391 SH |
3480 | struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, |
3481 | const char *name, | |
3482 | const struct drm_prop_enum_list *props, | |
3483 | int num_values) | |
3484 | { | |
3485 | struct drm_property *property; | |
3486 | int i, ret; | |
3487 | ||
3488 | flags |= DRM_MODE_PROP_ENUM; | |
3489 | ||
3490 | property = drm_property_create(dev, flags, name, num_values); | |
3491 | if (!property) | |
3492 | return NULL; | |
3493 | ||
3494 | for (i = 0; i < num_values; i++) { | |
3495 | ret = drm_property_add_enum(property, i, | |
3496 | props[i].type, | |
3497 | props[i].name); | |
3498 | if (ret) { | |
3499 | drm_property_destroy(dev, property); | |
3500 | return NULL; | |
3501 | } | |
3502 | } | |
3503 | ||
3504 | return property; | |
3505 | } | |
3506 | EXPORT_SYMBOL(drm_property_create_enum); | |
3507 | ||
c8e32cc1 | 3508 | /** |
2aa9d2bc | 3509 | * drm_property_create_bitmask - create a new bitmask property type |
c8e32cc1 DV |
3510 | * @dev: drm device |
3511 | * @flags: flags specifying the property type | |
3512 | * @name: name of the property | |
3513 | * @props: enumeration lists with property bitflags | |
3514 | * @num_values: number of pre-defined values | |
3515 | * | |
3516 | * This creates a new generic drm property which can then be attached to a drm | |
3517 | * object with drm_object_attach_property. The returned property object must be | |
3518 | * freed with drm_property_destroy. | |
3519 | * | |
3520 | * Compared to plain enumeration properties userspace is allowed to set any | |
3521 | * or'ed together combination of the predefined property bitflag values | |
3522 | * | |
3523 | * Returns: | |
3524 | * A pointer to the newly created property on success, NULL on failure. | |
3525 | */ | |
49e27545 RC |
3526 | struct drm_property *drm_property_create_bitmask(struct drm_device *dev, |
3527 | int flags, const char *name, | |
3528 | const struct drm_prop_enum_list *props, | |
7689ffb3 VS |
3529 | int num_props, |
3530 | uint64_t supported_bits) | |
49e27545 RC |
3531 | { |
3532 | struct drm_property *property; | |
7689ffb3 VS |
3533 | int i, ret, index = 0; |
3534 | int num_values = hweight64(supported_bits); | |
49e27545 RC |
3535 | |
3536 | flags |= DRM_MODE_PROP_BITMASK; | |
3537 | ||
3538 | property = drm_property_create(dev, flags, name, num_values); | |
3539 | if (!property) | |
3540 | return NULL; | |
7689ffb3 VS |
3541 | for (i = 0; i < num_props; i++) { |
3542 | if (!(supported_bits & (1ULL << props[i].type))) | |
3543 | continue; | |
49e27545 | 3544 | |
7689ffb3 VS |
3545 | if (WARN_ON(index >= num_values)) { |
3546 | drm_property_destroy(dev, property); | |
3547 | return NULL; | |
3548 | } | |
3549 | ||
3550 | ret = drm_property_add_enum(property, index++, | |
49e27545 RC |
3551 | props[i].type, |
3552 | props[i].name); | |
3553 | if (ret) { | |
3554 | drm_property_destroy(dev, property); | |
3555 | return NULL; | |
3556 | } | |
3557 | } | |
3558 | ||
3559 | return property; | |
3560 | } | |
3561 | EXPORT_SYMBOL(drm_property_create_bitmask); | |
3562 | ||
ebc44cf3 RC |
3563 | static struct drm_property *property_create_range(struct drm_device *dev, |
3564 | int flags, const char *name, | |
3565 | uint64_t min, uint64_t max) | |
3566 | { | |
3567 | struct drm_property *property; | |
3568 | ||
3569 | property = drm_property_create(dev, flags, name, 2); | |
3570 | if (!property) | |
3571 | return NULL; | |
3572 | ||
3573 | property->values[0] = min; | |
3574 | property->values[1] = max; | |
3575 | ||
3576 | return property; | |
3577 | } | |
3578 | ||
c8e32cc1 | 3579 | /** |
2aa9d2bc | 3580 | * drm_property_create_range - create a new ranged property type |
c8e32cc1 DV |
3581 | * @dev: drm device |
3582 | * @flags: flags specifying the property type | |
3583 | * @name: name of the property | |
3584 | * @min: minimum value of the property | |
3585 | * @max: maximum value of the property | |
3586 | * | |
3587 | * This creates a new generic drm property which can then be attached to a drm | |
3588 | * object with drm_object_attach_property. The returned property object must be | |
3589 | * freed with drm_property_destroy. | |
3590 | * | |
3591 | * Userspace is allowed to set any interger value in the (min, max) range | |
3592 | * inclusive. | |
3593 | * | |
3594 | * Returns: | |
3595 | * A pointer to the newly created property on success, NULL on failure. | |
3596 | */ | |
d9bc3c02 SH |
3597 | struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, |
3598 | const char *name, | |
3599 | uint64_t min, uint64_t max) | |
3600 | { | |
ebc44cf3 RC |
3601 | return property_create_range(dev, DRM_MODE_PROP_RANGE | flags, |
3602 | name, min, max); | |
d9bc3c02 SH |
3603 | } |
3604 | EXPORT_SYMBOL(drm_property_create_range); | |
3605 | ||
ebc44cf3 RC |
3606 | struct drm_property *drm_property_create_signed_range(struct drm_device *dev, |
3607 | int flags, const char *name, | |
3608 | int64_t min, int64_t max) | |
3609 | { | |
3610 | return property_create_range(dev, DRM_MODE_PROP_SIGNED_RANGE | flags, | |
3611 | name, I642U64(min), I642U64(max)); | |
3612 | } | |
3613 | EXPORT_SYMBOL(drm_property_create_signed_range); | |
3614 | ||
98f75de4 RC |
3615 | struct drm_property *drm_property_create_object(struct drm_device *dev, |
3616 | int flags, const char *name, uint32_t type) | |
3617 | { | |
3618 | struct drm_property *property; | |
3619 | ||
3620 | flags |= DRM_MODE_PROP_OBJECT; | |
3621 | ||
3622 | property = drm_property_create(dev, flags, name, 1); | |
3623 | if (!property) | |
3624 | return NULL; | |
3625 | ||
3626 | property->values[0] = type; | |
3627 | ||
3628 | return property; | |
3629 | } | |
3630 | EXPORT_SYMBOL(drm_property_create_object); | |
3631 | ||
c8e32cc1 DV |
3632 | /** |
3633 | * drm_property_add_enum - add a possible value to an enumeration property | |
3634 | * @property: enumeration property to change | |
3635 | * @index: index of the new enumeration | |
3636 | * @value: value of the new enumeration | |
3637 | * @name: symbolic name of the new enumeration | |
3638 | * | |
3639 | * This functions adds enumerations to a property. | |
3640 | * | |
3641 | * It's use is deprecated, drivers should use one of the more specific helpers | |
3642 | * to directly create the property with all enumerations already attached. | |
3643 | * | |
3644 | * Returns: | |
3645 | * Zero on success, error code on failure. | |
3646 | */ | |
f453ba04 DA |
3647 | int drm_property_add_enum(struct drm_property *property, int index, |
3648 | uint64_t value, const char *name) | |
3649 | { | |
3650 | struct drm_property_enum *prop_enum; | |
3651 | ||
5ea22f24 RC |
3652 | if (!(drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
3653 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK))) | |
49e27545 RC |
3654 | return -EINVAL; |
3655 | ||
3656 | /* | |
3657 | * Bitmask enum properties have the additional constraint of values | |
3658 | * from 0 to 63 | |
3659 | */ | |
5ea22f24 RC |
3660 | if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK) && |
3661 | (value > 63)) | |
f453ba04 DA |
3662 | return -EINVAL; |
3663 | ||
3664 | if (!list_empty(&property->enum_blob_list)) { | |
3665 | list_for_each_entry(prop_enum, &property->enum_blob_list, head) { | |
3666 | if (prop_enum->value == value) { | |
3667 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
3668 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
3669 | return 0; | |
3670 | } | |
3671 | } | |
3672 | } | |
3673 | ||
3674 | prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); | |
3675 | if (!prop_enum) | |
3676 | return -ENOMEM; | |
3677 | ||
3678 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
3679 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
3680 | prop_enum->value = value; | |
3681 | ||
3682 | property->values[index] = value; | |
3683 | list_add_tail(&prop_enum->head, &property->enum_blob_list); | |
3684 | return 0; | |
3685 | } | |
3686 | EXPORT_SYMBOL(drm_property_add_enum); | |
3687 | ||
c8e32cc1 DV |
3688 | /** |
3689 | * drm_property_destroy - destroy a drm property | |
3690 | * @dev: drm device | |
3691 | * @property: property to destry | |
3692 | * | |
3693 | * This function frees a property including any attached resources like | |
3694 | * enumeration values. | |
3695 | */ | |
f453ba04 DA |
3696 | void drm_property_destroy(struct drm_device *dev, struct drm_property *property) |
3697 | { | |
3698 | struct drm_property_enum *prop_enum, *pt; | |
3699 | ||
3700 | list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) { | |
3701 | list_del(&prop_enum->head); | |
3702 | kfree(prop_enum); | |
3703 | } | |
3704 | ||
3705 | if (property->num_values) | |
3706 | kfree(property->values); | |
3707 | drm_mode_object_put(dev, &property->base); | |
3708 | list_del(&property->head); | |
3709 | kfree(property); | |
3710 | } | |
3711 | EXPORT_SYMBOL(drm_property_destroy); | |
3712 | ||
c8e32cc1 DV |
3713 | /** |
3714 | * drm_object_attach_property - attach a property to a modeset object | |
3715 | * @obj: drm modeset object | |
3716 | * @property: property to attach | |
3717 | * @init_val: initial value of the property | |
3718 | * | |
3719 | * This attaches the given property to the modeset object with the given initial | |
3720 | * value. Currently this function cannot fail since the properties are stored in | |
3721 | * a statically sized array. | |
3722 | */ | |
c543188a PZ |
3723 | void drm_object_attach_property(struct drm_mode_object *obj, |
3724 | struct drm_property *property, | |
3725 | uint64_t init_val) | |
3726 | { | |
7f88a9be | 3727 | int count = obj->properties->count; |
c543188a | 3728 | |
7f88a9be PZ |
3729 | if (count == DRM_OBJECT_MAX_PROPERTY) { |
3730 | WARN(1, "Failed to attach object property (type: 0x%x). Please " | |
3731 | "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time " | |
3732 | "you see this message on the same object type.\n", | |
3733 | obj->type); | |
3734 | return; | |
c543188a PZ |
3735 | } |
3736 | ||
7f88a9be PZ |
3737 | obj->properties->ids[count] = property->base.id; |
3738 | obj->properties->values[count] = init_val; | |
3739 | obj->properties->count++; | |
c543188a PZ |
3740 | } |
3741 | EXPORT_SYMBOL(drm_object_attach_property); | |
3742 | ||
c8e32cc1 DV |
3743 | /** |
3744 | * drm_object_property_set_value - set the value of a property | |
3745 | * @obj: drm mode object to set property value for | |
3746 | * @property: property to set | |
3747 | * @val: value the property should be set to | |
3748 | * | |
3749 | * This functions sets a given property on a given object. This function only | |
3750 | * changes the software state of the property, it does not call into the | |
3751 | * driver's ->set_property callback. | |
3752 | * | |
3753 | * Returns: | |
3754 | * Zero on success, error code on failure. | |
3755 | */ | |
c543188a PZ |
3756 | int drm_object_property_set_value(struct drm_mode_object *obj, |
3757 | struct drm_property *property, uint64_t val) | |
3758 | { | |
3759 | int i; | |
3760 | ||
7f88a9be | 3761 | for (i = 0; i < obj->properties->count; i++) { |
c543188a PZ |
3762 | if (obj->properties->ids[i] == property->base.id) { |
3763 | obj->properties->values[i] = val; | |
3764 | return 0; | |
3765 | } | |
3766 | } | |
3767 | ||
3768 | return -EINVAL; | |
3769 | } | |
3770 | EXPORT_SYMBOL(drm_object_property_set_value); | |
3771 | ||
c8e32cc1 DV |
3772 | /** |
3773 | * drm_object_property_get_value - retrieve the value of a property | |
3774 | * @obj: drm mode object to get property value from | |
3775 | * @property: property to retrieve | |
3776 | * @val: storage for the property value | |
3777 | * | |
3778 | * This function retrieves the softare state of the given property for the given | |
3779 | * property. Since there is no driver callback to retrieve the current property | |
3780 | * value this might be out of sync with the hardware, depending upon the driver | |
3781 | * and property. | |
3782 | * | |
3783 | * Returns: | |
3784 | * Zero on success, error code on failure. | |
3785 | */ | |
c543188a PZ |
3786 | int drm_object_property_get_value(struct drm_mode_object *obj, |
3787 | struct drm_property *property, uint64_t *val) | |
3788 | { | |
3789 | int i; | |
3790 | ||
7f88a9be | 3791 | for (i = 0; i < obj->properties->count; i++) { |
c543188a PZ |
3792 | if (obj->properties->ids[i] == property->base.id) { |
3793 | *val = obj->properties->values[i]; | |
3794 | return 0; | |
3795 | } | |
3796 | } | |
3797 | ||
3798 | return -EINVAL; | |
3799 | } | |
3800 | EXPORT_SYMBOL(drm_object_property_get_value); | |
3801 | ||
c8e32cc1 DV |
3802 | /** |
3803 | * drm_mode_getproperty_ioctl - get the current value of a connector's property | |
3804 | * @dev: DRM device | |
3805 | * @data: ioctl data | |
3806 | * @file_priv: DRM file info | |
3807 | * | |
3808 | * This function retrieves the current value for an connectors's property. | |
3809 | * | |
3810 | * Called by the user via ioctl. | |
3811 | * | |
3812 | * Returns: | |
3813 | * Zero on success, errno on failure. | |
3814 | */ | |
f453ba04 DA |
3815 | int drm_mode_getproperty_ioctl(struct drm_device *dev, |
3816 | void *data, struct drm_file *file_priv) | |
3817 | { | |
f453ba04 DA |
3818 | struct drm_mode_get_property *out_resp = data; |
3819 | struct drm_property *property; | |
3820 | int enum_count = 0; | |
3821 | int blob_count = 0; | |
3822 | int value_count = 0; | |
3823 | int ret = 0, i; | |
3824 | int copied; | |
3825 | struct drm_property_enum *prop_enum; | |
3826 | struct drm_mode_property_enum __user *enum_ptr; | |
3827 | struct drm_property_blob *prop_blob; | |
81f6c7f8 | 3828 | uint32_t __user *blob_id_ptr; |
f453ba04 DA |
3829 | uint64_t __user *values_ptr; |
3830 | uint32_t __user *blob_length_ptr; | |
3831 | ||
fb3b06c8 DA |
3832 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3833 | return -EINVAL; | |
3834 | ||
84849903 | 3835 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
3836 | property = drm_property_find(dev, out_resp->prop_id); |
3837 | if (!property) { | |
f27657f2 | 3838 | ret = -ENOENT; |
f453ba04 DA |
3839 | goto done; |
3840 | } | |
f453ba04 | 3841 | |
5ea22f24 RC |
3842 | if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
3843 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { | |
f453ba04 DA |
3844 | list_for_each_entry(prop_enum, &property->enum_blob_list, head) |
3845 | enum_count++; | |
5ea22f24 | 3846 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) { |
f453ba04 DA |
3847 | list_for_each_entry(prop_blob, &property->enum_blob_list, head) |
3848 | blob_count++; | |
3849 | } | |
3850 | ||
3851 | value_count = property->num_values; | |
3852 | ||
3853 | strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); | |
3854 | out_resp->name[DRM_PROP_NAME_LEN-1] = 0; | |
3855 | out_resp->flags = property->flags; | |
3856 | ||
3857 | if ((out_resp->count_values >= value_count) && value_count) { | |
81f6c7f8 | 3858 | values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; |
f453ba04 DA |
3859 | for (i = 0; i < value_count; i++) { |
3860 | if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { | |
3861 | ret = -EFAULT; | |
3862 | goto done; | |
3863 | } | |
3864 | } | |
3865 | } | |
3866 | out_resp->count_values = value_count; | |
3867 | ||
5ea22f24 RC |
3868 | if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
3869 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { | |
f453ba04 DA |
3870 | if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { |
3871 | copied = 0; | |
81f6c7f8 | 3872 | enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; |
f453ba04 DA |
3873 | list_for_each_entry(prop_enum, &property->enum_blob_list, head) { |
3874 | ||
3875 | if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { | |
3876 | ret = -EFAULT; | |
3877 | goto done; | |
3878 | } | |
3879 | ||
3880 | if (copy_to_user(&enum_ptr[copied].name, | |
3881 | &prop_enum->name, DRM_PROP_NAME_LEN)) { | |
3882 | ret = -EFAULT; | |
3883 | goto done; | |
3884 | } | |
3885 | copied++; | |
3886 | } | |
3887 | } | |
3888 | out_resp->count_enum_blobs = enum_count; | |
3889 | } | |
3890 | ||
5ea22f24 | 3891 | if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) { |
f453ba04 DA |
3892 | if ((out_resp->count_enum_blobs >= blob_count) && blob_count) { |
3893 | copied = 0; | |
81f6c7f8 VS |
3894 | blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr; |
3895 | blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr; | |
f453ba04 DA |
3896 | |
3897 | list_for_each_entry(prop_blob, &property->enum_blob_list, head) { | |
3898 | if (put_user(prop_blob->base.id, blob_id_ptr + copied)) { | |
3899 | ret = -EFAULT; | |
3900 | goto done; | |
3901 | } | |
3902 | ||
3903 | if (put_user(prop_blob->length, blob_length_ptr + copied)) { | |
3904 | ret = -EFAULT; | |
3905 | goto done; | |
3906 | } | |
3907 | ||
3908 | copied++; | |
3909 | } | |
3910 | } | |
3911 | out_resp->count_enum_blobs = blob_count; | |
3912 | } | |
3913 | done: | |
84849903 | 3914 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
3915 | return ret; |
3916 | } | |
3917 | ||
3918 | static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length, | |
3919 | void *data) | |
3920 | { | |
3921 | struct drm_property_blob *blob; | |
6bfc56aa | 3922 | int ret; |
f453ba04 DA |
3923 | |
3924 | if (!length || !data) | |
3925 | return NULL; | |
3926 | ||
3927 | blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); | |
3928 | if (!blob) | |
3929 | return NULL; | |
3930 | ||
6bfc56aa VS |
3931 | ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB); |
3932 | if (ret) { | |
3933 | kfree(blob); | |
3934 | return NULL; | |
3935 | } | |
3936 | ||
f453ba04 DA |
3937 | blob->length = length; |
3938 | ||
3939 | memcpy(blob->data, data, length); | |
3940 | ||
f453ba04 DA |
3941 | list_add_tail(&blob->head, &dev->mode_config.property_blob_list); |
3942 | return blob; | |
3943 | } | |
3944 | ||
3945 | static void drm_property_destroy_blob(struct drm_device *dev, | |
3946 | struct drm_property_blob *blob) | |
3947 | { | |
3948 | drm_mode_object_put(dev, &blob->base); | |
3949 | list_del(&blob->head); | |
3950 | kfree(blob); | |
3951 | } | |
3952 | ||
c8e32cc1 DV |
3953 | /** |
3954 | * drm_mode_getblob_ioctl - get the contents of a blob property value | |
3955 | * @dev: DRM device | |
3956 | * @data: ioctl data | |
3957 | * @file_priv: DRM file info | |
3958 | * | |
3959 | * This function retrieves the contents of a blob property. The value stored in | |
3960 | * an object's blob property is just a normal modeset object id. | |
3961 | * | |
3962 | * Called by the user via ioctl. | |
3963 | * | |
3964 | * Returns: | |
3965 | * Zero on success, errno on failure. | |
3966 | */ | |
f453ba04 DA |
3967 | int drm_mode_getblob_ioctl(struct drm_device *dev, |
3968 | void *data, struct drm_file *file_priv) | |
3969 | { | |
f453ba04 DA |
3970 | struct drm_mode_get_blob *out_resp = data; |
3971 | struct drm_property_blob *blob; | |
3972 | int ret = 0; | |
81f6c7f8 | 3973 | void __user *blob_ptr; |
f453ba04 | 3974 | |
fb3b06c8 DA |
3975 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3976 | return -EINVAL; | |
3977 | ||
84849903 | 3978 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
3979 | blob = drm_property_blob_find(dev, out_resp->blob_id); |
3980 | if (!blob) { | |
f27657f2 | 3981 | ret = -ENOENT; |
f453ba04 DA |
3982 | goto done; |
3983 | } | |
f453ba04 DA |
3984 | |
3985 | if (out_resp->length == blob->length) { | |
81f6c7f8 | 3986 | blob_ptr = (void __user *)(unsigned long)out_resp->data; |
f453ba04 DA |
3987 | if (copy_to_user(blob_ptr, blob->data, blob->length)){ |
3988 | ret = -EFAULT; | |
3989 | goto done; | |
3990 | } | |
3991 | } | |
3992 | out_resp->length = blob->length; | |
3993 | ||
3994 | done: | |
84849903 | 3995 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
3996 | return ret; |
3997 | } | |
3998 | ||
43aba7eb DA |
3999 | int drm_mode_connector_set_path_property(struct drm_connector *connector, |
4000 | char *path) | |
4001 | { | |
4002 | struct drm_device *dev = connector->dev; | |
4003 | int ret, size; | |
4004 | size = strlen(path) + 1; | |
4005 | ||
4006 | connector->path_blob_ptr = drm_property_create_blob(connector->dev, | |
4007 | size, path); | |
4008 | if (!connector->path_blob_ptr) | |
4009 | return -EINVAL; | |
4010 | ||
4011 | ret = drm_object_property_set_value(&connector->base, | |
4012 | dev->mode_config.path_property, | |
4013 | connector->path_blob_ptr->base.id); | |
4014 | return ret; | |
4015 | } | |
4016 | EXPORT_SYMBOL(drm_mode_connector_set_path_property); | |
4017 | ||
c8e32cc1 DV |
4018 | /** |
4019 | * drm_mode_connector_update_edid_property - update the edid property of a connector | |
4020 | * @connector: drm connector | |
4021 | * @edid: new value of the edid property | |
4022 | * | |
4023 | * This function creates a new blob modeset object and assigns its id to the | |
4024 | * connector's edid property. | |
4025 | * | |
4026 | * Returns: | |
4027 | * Zero on success, errno on failure. | |
4028 | */ | |
f453ba04 DA |
4029 | int drm_mode_connector_update_edid_property(struct drm_connector *connector, |
4030 | struct edid *edid) | |
4031 | { | |
4032 | struct drm_device *dev = connector->dev; | |
4a1b0714 | 4033 | int ret, size; |
f453ba04 | 4034 | |
4cf2b281 TW |
4035 | /* ignore requests to set edid when overridden */ |
4036 | if (connector->override_edid) | |
4037 | return 0; | |
4038 | ||
f453ba04 DA |
4039 | if (connector->edid_blob_ptr) |
4040 | drm_property_destroy_blob(dev, connector->edid_blob_ptr); | |
4041 | ||
4042 | /* Delete edid, when there is none. */ | |
4043 | if (!edid) { | |
4044 | connector->edid_blob_ptr = NULL; | |
58495563 | 4045 | ret = drm_object_property_set_value(&connector->base, dev->mode_config.edid_property, 0); |
f453ba04 DA |
4046 | return ret; |
4047 | } | |
4048 | ||
7466f4cc AJ |
4049 | size = EDID_LENGTH * (1 + edid->extensions); |
4050 | connector->edid_blob_ptr = drm_property_create_blob(connector->dev, | |
4051 | size, edid); | |
e655d122 SK |
4052 | if (!connector->edid_blob_ptr) |
4053 | return -EINVAL; | |
f453ba04 | 4054 | |
58495563 | 4055 | ret = drm_object_property_set_value(&connector->base, |
f453ba04 DA |
4056 | dev->mode_config.edid_property, |
4057 | connector->edid_blob_ptr->base.id); | |
4058 | ||
4059 | return ret; | |
4060 | } | |
4061 | EXPORT_SYMBOL(drm_mode_connector_update_edid_property); | |
4062 | ||
26a34815 | 4063 | static bool drm_property_change_is_valid(struct drm_property *property, |
592c20ee | 4064 | uint64_t value) |
26a34815 PZ |
4065 | { |
4066 | if (property->flags & DRM_MODE_PROP_IMMUTABLE) | |
4067 | return false; | |
5ea22f24 RC |
4068 | |
4069 | if (drm_property_type_is(property, DRM_MODE_PROP_RANGE)) { | |
26a34815 PZ |
4070 | if (value < property->values[0] || value > property->values[1]) |
4071 | return false; | |
4072 | return true; | |
ebc44cf3 RC |
4073 | } else if (drm_property_type_is(property, DRM_MODE_PROP_SIGNED_RANGE)) { |
4074 | int64_t svalue = U642I64(value); | |
4075 | if (svalue < U642I64(property->values[0]) || | |
4076 | svalue > U642I64(property->values[1])) | |
4077 | return false; | |
4078 | return true; | |
5ea22f24 | 4079 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { |
49e27545 | 4080 | int i; |
592c20ee | 4081 | uint64_t valid_mask = 0; |
49e27545 RC |
4082 | for (i = 0; i < property->num_values; i++) |
4083 | valid_mask |= (1ULL << property->values[i]); | |
4084 | return !(value & ~valid_mask); | |
5ea22f24 | 4085 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) { |
c4a56750 VS |
4086 | /* Only the driver knows */ |
4087 | return true; | |
98f75de4 RC |
4088 | } else if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { |
4089 | struct drm_mode_object *obj; | |
4090 | /* a zero value for an object property translates to null: */ | |
4091 | if (value == 0) | |
4092 | return true; | |
4093 | /* | |
4094 | * NOTE: use _object_find() directly to bypass restriction on | |
4095 | * looking up refcnt'd objects (ie. fb's). For a refcnt'd | |
4096 | * object this could race against object finalization, so it | |
4097 | * simply tells us that the object *was* valid. Which is good | |
4098 | * enough. | |
4099 | */ | |
4100 | obj = _object_find(property->dev, value, property->values[0]); | |
4101 | return obj != NULL; | |
26a34815 PZ |
4102 | } else { |
4103 | int i; | |
4104 | for (i = 0; i < property->num_values; i++) | |
4105 | if (property->values[i] == value) | |
4106 | return true; | |
4107 | return false; | |
4108 | } | |
4109 | } | |
4110 | ||
c8e32cc1 DV |
4111 | /** |
4112 | * drm_mode_connector_property_set_ioctl - set the current value of a connector property | |
4113 | * @dev: DRM device | |
4114 | * @data: ioctl data | |
4115 | * @file_priv: DRM file info | |
4116 | * | |
4117 | * This function sets the current value for a connectors's property. It also | |
4118 | * calls into a driver's ->set_property callback to update the hardware state | |
4119 | * | |
4120 | * Called by the user via ioctl. | |
4121 | * | |
4122 | * Returns: | |
4123 | * Zero on success, errno on failure. | |
4124 | */ | |
f453ba04 DA |
4125 | int drm_mode_connector_property_set_ioctl(struct drm_device *dev, |
4126 | void *data, struct drm_file *file_priv) | |
4127 | { | |
0057d8dd PZ |
4128 | struct drm_mode_connector_set_property *conn_set_prop = data; |
4129 | struct drm_mode_obj_set_property obj_set_prop = { | |
4130 | .value = conn_set_prop->value, | |
4131 | .prop_id = conn_set_prop->prop_id, | |
4132 | .obj_id = conn_set_prop->connector_id, | |
4133 | .obj_type = DRM_MODE_OBJECT_CONNECTOR | |
4134 | }; | |
fb3b06c8 | 4135 | |
0057d8dd PZ |
4136 | /* It does all the locking and checking we need */ |
4137 | return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv); | |
f453ba04 DA |
4138 | } |
4139 | ||
c543188a PZ |
4140 | static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, |
4141 | struct drm_property *property, | |
4142 | uint64_t value) | |
4143 | { | |
4144 | int ret = -EINVAL; | |
4145 | struct drm_connector *connector = obj_to_connector(obj); | |
4146 | ||
4147 | /* Do DPMS ourselves */ | |
4148 | if (property == connector->dev->mode_config.dpms_property) { | |
4149 | if (connector->funcs->dpms) | |
4150 | (*connector->funcs->dpms)(connector, (int)value); | |
4151 | ret = 0; | |
4152 | } else if (connector->funcs->set_property) | |
4153 | ret = connector->funcs->set_property(connector, property, value); | |
4154 | ||
4155 | /* store the property value if successful */ | |
4156 | if (!ret) | |
58495563 | 4157 | drm_object_property_set_value(&connector->base, property, value); |
c543188a PZ |
4158 | return ret; |
4159 | } | |
4160 | ||
bffd9de0 PZ |
4161 | static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, |
4162 | struct drm_property *property, | |
4163 | uint64_t value) | |
4164 | { | |
4165 | int ret = -EINVAL; | |
4166 | struct drm_crtc *crtc = obj_to_crtc(obj); | |
4167 | ||
4168 | if (crtc->funcs->set_property) | |
4169 | ret = crtc->funcs->set_property(crtc, property, value); | |
4170 | if (!ret) | |
4171 | drm_object_property_set_value(obj, property, value); | |
4172 | ||
4173 | return ret; | |
4174 | } | |
4175 | ||
4d93914a RC |
4176 | static int drm_mode_plane_set_obj_prop(struct drm_mode_object *obj, |
4177 | struct drm_property *property, | |
4178 | uint64_t value) | |
4179 | { | |
4180 | int ret = -EINVAL; | |
4181 | struct drm_plane *plane = obj_to_plane(obj); | |
4182 | ||
4183 | if (plane->funcs->set_property) | |
4184 | ret = plane->funcs->set_property(plane, property, value); | |
4185 | if (!ret) | |
4186 | drm_object_property_set_value(obj, property, value); | |
4187 | ||
4188 | return ret; | |
4189 | } | |
4190 | ||
c8e32cc1 DV |
4191 | /** |
4192 | * drm_mode_getproperty_ioctl - get the current value of a object's property | |
4193 | * @dev: DRM device | |
4194 | * @data: ioctl data | |
4195 | * @file_priv: DRM file info | |
4196 | * | |
4197 | * This function retrieves the current value for an object's property. Compared | |
4198 | * to the connector specific ioctl this one is extended to also work on crtc and | |
4199 | * plane objects. | |
4200 | * | |
4201 | * Called by the user via ioctl. | |
4202 | * | |
4203 | * Returns: | |
4204 | * Zero on success, errno on failure. | |
4205 | */ | |
c543188a PZ |
4206 | int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, |
4207 | struct drm_file *file_priv) | |
4208 | { | |
4209 | struct drm_mode_obj_get_properties *arg = data; | |
4210 | struct drm_mode_object *obj; | |
4211 | int ret = 0; | |
4212 | int i; | |
4213 | int copied = 0; | |
4214 | int props_count = 0; | |
4215 | uint32_t __user *props_ptr; | |
4216 | uint64_t __user *prop_values_ptr; | |
4217 | ||
4218 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
4219 | return -EINVAL; | |
4220 | ||
84849903 | 4221 | drm_modeset_lock_all(dev); |
c543188a PZ |
4222 | |
4223 | obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); | |
4224 | if (!obj) { | |
f27657f2 | 4225 | ret = -ENOENT; |
c543188a PZ |
4226 | goto out; |
4227 | } | |
4228 | if (!obj->properties) { | |
4229 | ret = -EINVAL; | |
4230 | goto out; | |
4231 | } | |
4232 | ||
7f88a9be | 4233 | props_count = obj->properties->count; |
c543188a PZ |
4234 | |
4235 | /* This ioctl is called twice, once to determine how much space is | |
4236 | * needed, and the 2nd time to fill it. */ | |
4237 | if ((arg->count_props >= props_count) && props_count) { | |
4238 | copied = 0; | |
4239 | props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr); | |
4240 | prop_values_ptr = (uint64_t __user *)(unsigned long) | |
4241 | (arg->prop_values_ptr); | |
4242 | for (i = 0; i < props_count; i++) { | |
4243 | if (put_user(obj->properties->ids[i], | |
4244 | props_ptr + copied)) { | |
4245 | ret = -EFAULT; | |
4246 | goto out; | |
4247 | } | |
4248 | if (put_user(obj->properties->values[i], | |
4249 | prop_values_ptr + copied)) { | |
4250 | ret = -EFAULT; | |
4251 | goto out; | |
4252 | } | |
4253 | copied++; | |
4254 | } | |
4255 | } | |
4256 | arg->count_props = props_count; | |
4257 | out: | |
84849903 | 4258 | drm_modeset_unlock_all(dev); |
c543188a PZ |
4259 | return ret; |
4260 | } | |
4261 | ||
c8e32cc1 DV |
4262 | /** |
4263 | * drm_mode_obj_set_property_ioctl - set the current value of an object's property | |
4264 | * @dev: DRM device | |
4265 | * @data: ioctl data | |
4266 | * @file_priv: DRM file info | |
4267 | * | |
4268 | * This function sets the current value for an object's property. It also calls | |
4269 | * into a driver's ->set_property callback to update the hardware state. | |
4270 | * Compared to the connector specific ioctl this one is extended to also work on | |
4271 | * crtc and plane objects. | |
4272 | * | |
4273 | * Called by the user via ioctl. | |
4274 | * | |
4275 | * Returns: | |
4276 | * Zero on success, errno on failure. | |
4277 | */ | |
c543188a PZ |
4278 | int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, |
4279 | struct drm_file *file_priv) | |
4280 | { | |
4281 | struct drm_mode_obj_set_property *arg = data; | |
4282 | struct drm_mode_object *arg_obj; | |
4283 | struct drm_mode_object *prop_obj; | |
4284 | struct drm_property *property; | |
4285 | int ret = -EINVAL; | |
4286 | int i; | |
4287 | ||
4288 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
4289 | return -EINVAL; | |
4290 | ||
84849903 | 4291 | drm_modeset_lock_all(dev); |
c543188a PZ |
4292 | |
4293 | arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); | |
f27657f2 VS |
4294 | if (!arg_obj) { |
4295 | ret = -ENOENT; | |
c543188a | 4296 | goto out; |
f27657f2 | 4297 | } |
c543188a PZ |
4298 | if (!arg_obj->properties) |
4299 | goto out; | |
4300 | ||
7f88a9be | 4301 | for (i = 0; i < arg_obj->properties->count; i++) |
c543188a PZ |
4302 | if (arg_obj->properties->ids[i] == arg->prop_id) |
4303 | break; | |
4304 | ||
7f88a9be | 4305 | if (i == arg_obj->properties->count) |
c543188a PZ |
4306 | goto out; |
4307 | ||
4308 | prop_obj = drm_mode_object_find(dev, arg->prop_id, | |
4309 | DRM_MODE_OBJECT_PROPERTY); | |
f27657f2 VS |
4310 | if (!prop_obj) { |
4311 | ret = -ENOENT; | |
c543188a | 4312 | goto out; |
f27657f2 | 4313 | } |
c543188a PZ |
4314 | property = obj_to_property(prop_obj); |
4315 | ||
4316 | if (!drm_property_change_is_valid(property, arg->value)) | |
4317 | goto out; | |
4318 | ||
4319 | switch (arg_obj->type) { | |
4320 | case DRM_MODE_OBJECT_CONNECTOR: | |
4321 | ret = drm_mode_connector_set_obj_prop(arg_obj, property, | |
4322 | arg->value); | |
4323 | break; | |
bffd9de0 PZ |
4324 | case DRM_MODE_OBJECT_CRTC: |
4325 | ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value); | |
4326 | break; | |
4d93914a RC |
4327 | case DRM_MODE_OBJECT_PLANE: |
4328 | ret = drm_mode_plane_set_obj_prop(arg_obj, property, arg->value); | |
4329 | break; | |
c543188a PZ |
4330 | } |
4331 | ||
4332 | out: | |
84849903 | 4333 | drm_modeset_unlock_all(dev); |
c543188a PZ |
4334 | return ret; |
4335 | } | |
4336 | ||
c8e32cc1 DV |
4337 | /** |
4338 | * drm_mode_connector_attach_encoder - attach a connector to an encoder | |
4339 | * @connector: connector to attach | |
4340 | * @encoder: encoder to attach @connector to | |
4341 | * | |
4342 | * This function links up a connector to an encoder. Note that the routing | |
4343 | * restrictions between encoders and crtcs are exposed to userspace through the | |
4344 | * possible_clones and possible_crtcs bitmasks. | |
4345 | * | |
4346 | * Returns: | |
4347 | * Zero on success, errno on failure. | |
4348 | */ | |
f453ba04 DA |
4349 | int drm_mode_connector_attach_encoder(struct drm_connector *connector, |
4350 | struct drm_encoder *encoder) | |
4351 | { | |
4352 | int i; | |
4353 | ||
4354 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { | |
4355 | if (connector->encoder_ids[i] == 0) { | |
4356 | connector->encoder_ids[i] = encoder->base.id; | |
4357 | return 0; | |
4358 | } | |
4359 | } | |
4360 | return -ENOMEM; | |
4361 | } | |
4362 | EXPORT_SYMBOL(drm_mode_connector_attach_encoder); | |
4363 | ||
c8e32cc1 DV |
4364 | /** |
4365 | * drm_mode_crtc_set_gamma_size - set the gamma table size | |
4366 | * @crtc: CRTC to set the gamma table size for | |
4367 | * @gamma_size: size of the gamma table | |
4368 | * | |
4369 | * Drivers which support gamma tables should set this to the supported gamma | |
4370 | * table size when initializing the CRTC. Currently the drm core only supports a | |
4371 | * fixed gamma table size. | |
4372 | * | |
4373 | * Returns: | |
4374 | * Zero on success, errno on failure. | |
4375 | */ | |
4cae5b84 | 4376 | int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, |
c8e32cc1 | 4377 | int gamma_size) |
f453ba04 DA |
4378 | { |
4379 | crtc->gamma_size = gamma_size; | |
4380 | ||
4381 | crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL); | |
4382 | if (!crtc->gamma_store) { | |
4383 | crtc->gamma_size = 0; | |
4cae5b84 | 4384 | return -ENOMEM; |
f453ba04 DA |
4385 | } |
4386 | ||
4cae5b84 | 4387 | return 0; |
f453ba04 DA |
4388 | } |
4389 | EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); | |
4390 | ||
c8e32cc1 DV |
4391 | /** |
4392 | * drm_mode_gamma_set_ioctl - set the gamma table | |
4393 | * @dev: DRM device | |
4394 | * @data: ioctl data | |
4395 | * @file_priv: DRM file info | |
4396 | * | |
4397 | * Set the gamma table of a CRTC to the one passed in by the user. Userspace can | |
4398 | * inquire the required gamma table size through drm_mode_gamma_get_ioctl. | |
4399 | * | |
4400 | * Called by the user via ioctl. | |
4401 | * | |
4402 | * Returns: | |
4403 | * Zero on success, errno on failure. | |
4404 | */ | |
f453ba04 DA |
4405 | int drm_mode_gamma_set_ioctl(struct drm_device *dev, |
4406 | void *data, struct drm_file *file_priv) | |
4407 | { | |
4408 | struct drm_mode_crtc_lut *crtc_lut = data; | |
f453ba04 DA |
4409 | struct drm_crtc *crtc; |
4410 | void *r_base, *g_base, *b_base; | |
4411 | int size; | |
4412 | int ret = 0; | |
4413 | ||
fb3b06c8 DA |
4414 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4415 | return -EINVAL; | |
4416 | ||
84849903 | 4417 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
4418 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
4419 | if (!crtc) { | |
f27657f2 | 4420 | ret = -ENOENT; |
f453ba04 DA |
4421 | goto out; |
4422 | } | |
f453ba04 | 4423 | |
ebe0f244 LP |
4424 | if (crtc->funcs->gamma_set == NULL) { |
4425 | ret = -ENOSYS; | |
4426 | goto out; | |
4427 | } | |
4428 | ||
f453ba04 DA |
4429 | /* memcpy into gamma store */ |
4430 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
4431 | ret = -EINVAL; | |
4432 | goto out; | |
4433 | } | |
4434 | ||
4435 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
4436 | r_base = crtc->gamma_store; | |
4437 | if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { | |
4438 | ret = -EFAULT; | |
4439 | goto out; | |
4440 | } | |
4441 | ||
4442 | g_base = r_base + size; | |
4443 | if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { | |
4444 | ret = -EFAULT; | |
4445 | goto out; | |
4446 | } | |
4447 | ||
4448 | b_base = g_base + size; | |
4449 | if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { | |
4450 | ret = -EFAULT; | |
4451 | goto out; | |
4452 | } | |
4453 | ||
7203425a | 4454 | crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); |
f453ba04 DA |
4455 | |
4456 | out: | |
84849903 | 4457 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
4458 | return ret; |
4459 | ||
4460 | } | |
4461 | ||
c8e32cc1 DV |
4462 | /** |
4463 | * drm_mode_gamma_get_ioctl - get the gamma table | |
4464 | * @dev: DRM device | |
4465 | * @data: ioctl data | |
4466 | * @file_priv: DRM file info | |
4467 | * | |
4468 | * Copy the current gamma table into the storage provided. This also provides | |
4469 | * the gamma table size the driver expects, which can be used to size the | |
4470 | * allocated storage. | |
4471 | * | |
4472 | * Called by the user via ioctl. | |
4473 | * | |
4474 | * Returns: | |
4475 | * Zero on success, errno on failure. | |
4476 | */ | |
f453ba04 DA |
4477 | int drm_mode_gamma_get_ioctl(struct drm_device *dev, |
4478 | void *data, struct drm_file *file_priv) | |
4479 | { | |
4480 | struct drm_mode_crtc_lut *crtc_lut = data; | |
f453ba04 DA |
4481 | struct drm_crtc *crtc; |
4482 | void *r_base, *g_base, *b_base; | |
4483 | int size; | |
4484 | int ret = 0; | |
4485 | ||
fb3b06c8 DA |
4486 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4487 | return -EINVAL; | |
4488 | ||
84849903 | 4489 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
4490 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
4491 | if (!crtc) { | |
f27657f2 | 4492 | ret = -ENOENT; |
f453ba04 DA |
4493 | goto out; |
4494 | } | |
f453ba04 DA |
4495 | |
4496 | /* memcpy into gamma store */ | |
4497 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
4498 | ret = -EINVAL; | |
4499 | goto out; | |
4500 | } | |
4501 | ||
4502 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
4503 | r_base = crtc->gamma_store; | |
4504 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { | |
4505 | ret = -EFAULT; | |
4506 | goto out; | |
4507 | } | |
4508 | ||
4509 | g_base = r_base + size; | |
4510 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { | |
4511 | ret = -EFAULT; | |
4512 | goto out; | |
4513 | } | |
4514 | ||
4515 | b_base = g_base + size; | |
4516 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { | |
4517 | ret = -EFAULT; | |
4518 | goto out; | |
4519 | } | |
4520 | out: | |
84849903 | 4521 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
4522 | return ret; |
4523 | } | |
d91d8a3f | 4524 | |
c8e32cc1 DV |
4525 | /** |
4526 | * drm_mode_page_flip_ioctl - schedule an asynchronous fb update | |
4527 | * @dev: DRM device | |
4528 | * @data: ioctl data | |
4529 | * @file_priv: DRM file info | |
4530 | * | |
4531 | * This schedules an asynchronous update on a given CRTC, called page flip. | |
4532 | * Optionally a drm event is generated to signal the completion of the event. | |
4533 | * Generic drivers cannot assume that a pageflip with changed framebuffer | |
4534 | * properties (including driver specific metadata like tiling layout) will work, | |
4535 | * but some drivers support e.g. pixel format changes through the pageflip | |
4536 | * ioctl. | |
4537 | * | |
4538 | * Called by the user via ioctl. | |
4539 | * | |
4540 | * Returns: | |
4541 | * Zero on success, errno on failure. | |
4542 | */ | |
d91d8a3f KH |
4543 | int drm_mode_page_flip_ioctl(struct drm_device *dev, |
4544 | void *data, struct drm_file *file_priv) | |
4545 | { | |
4546 | struct drm_mode_crtc_page_flip *page_flip = data; | |
d91d8a3f | 4547 | struct drm_crtc *crtc; |
b0d12325 | 4548 | struct drm_framebuffer *fb = NULL, *old_fb = NULL; |
d91d8a3f KH |
4549 | struct drm_pending_vblank_event *e = NULL; |
4550 | unsigned long flags; | |
4551 | int ret = -EINVAL; | |
4552 | ||
4553 | if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS || | |
4554 | page_flip->reserved != 0) | |
4555 | return -EINVAL; | |
4556 | ||
62f2104f KP |
4557 | if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip) |
4558 | return -EINVAL; | |
4559 | ||
a2b34e22 RC |
4560 | crtc = drm_crtc_find(dev, page_flip->crtc_id); |
4561 | if (!crtc) | |
f27657f2 | 4562 | return -ENOENT; |
d91d8a3f | 4563 | |
51fd371b | 4564 | drm_modeset_lock(&crtc->mutex, NULL); |
f4510a27 | 4565 | if (crtc->primary->fb == NULL) { |
90c1efdd CW |
4566 | /* The framebuffer is currently unbound, presumably |
4567 | * due to a hotplug event, that userspace has not | |
4568 | * yet discovered. | |
4569 | */ | |
4570 | ret = -EBUSY; | |
4571 | goto out; | |
4572 | } | |
4573 | ||
d91d8a3f KH |
4574 | if (crtc->funcs->page_flip == NULL) |
4575 | goto out; | |
4576 | ||
786b99ed | 4577 | fb = drm_framebuffer_lookup(dev, page_flip->fb_id); |
37c4e705 VS |
4578 | if (!fb) { |
4579 | ret = -ENOENT; | |
d91d8a3f | 4580 | goto out; |
37c4e705 | 4581 | } |
d91d8a3f | 4582 | |
c11e9283 DL |
4583 | ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb); |
4584 | if (ret) | |
5f61bb42 | 4585 | goto out; |
5f61bb42 | 4586 | |
f4510a27 | 4587 | if (crtc->primary->fb->pixel_format != fb->pixel_format) { |
909d9cda LP |
4588 | DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n"); |
4589 | ret = -EINVAL; | |
4590 | goto out; | |
4591 | } | |
4592 | ||
d91d8a3f KH |
4593 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { |
4594 | ret = -ENOMEM; | |
4595 | spin_lock_irqsave(&dev->event_lock, flags); | |
4596 | if (file_priv->event_space < sizeof e->event) { | |
4597 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4598 | goto out; | |
4599 | } | |
4600 | file_priv->event_space -= sizeof e->event; | |
4601 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4602 | ||
4603 | e = kzalloc(sizeof *e, GFP_KERNEL); | |
4604 | if (e == NULL) { | |
4605 | spin_lock_irqsave(&dev->event_lock, flags); | |
4606 | file_priv->event_space += sizeof e->event; | |
4607 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4608 | goto out; | |
4609 | } | |
4610 | ||
7bd4d7be | 4611 | e->event.base.type = DRM_EVENT_FLIP_COMPLETE; |
d91d8a3f KH |
4612 | e->event.base.length = sizeof e->event; |
4613 | e->event.user_data = page_flip->user_data; | |
4614 | e->base.event = &e->event.base; | |
4615 | e->base.file_priv = file_priv; | |
4616 | e->base.destroy = | |
4617 | (void (*) (struct drm_pending_event *)) kfree; | |
4618 | } | |
4619 | ||
f4510a27 | 4620 | old_fb = crtc->primary->fb; |
ed8d1975 | 4621 | ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags); |
d91d8a3f | 4622 | if (ret) { |
aef6a7ee JS |
4623 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { |
4624 | spin_lock_irqsave(&dev->event_lock, flags); | |
4625 | file_priv->event_space += sizeof e->event; | |
4626 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4627 | kfree(e); | |
4628 | } | |
b0d12325 DV |
4629 | /* Keep the old fb, don't unref it. */ |
4630 | old_fb = NULL; | |
4631 | } else { | |
8cf1e981 TR |
4632 | /* |
4633 | * Warn if the driver hasn't properly updated the crtc->fb | |
4634 | * field to reflect that the new framebuffer is now used. | |
4635 | * Failing to do so will screw with the reference counting | |
4636 | * on framebuffers. | |
4637 | */ | |
f4510a27 | 4638 | WARN_ON(crtc->primary->fb != fb); |
b0d12325 DV |
4639 | /* Unref only the old framebuffer. */ |
4640 | fb = NULL; | |
d91d8a3f KH |
4641 | } |
4642 | ||
4643 | out: | |
b0d12325 DV |
4644 | if (fb) |
4645 | drm_framebuffer_unreference(fb); | |
4646 | if (old_fb) | |
4647 | drm_framebuffer_unreference(old_fb); | |
51fd371b | 4648 | drm_modeset_unlock(&crtc->mutex); |
b4d5e7d1 | 4649 | |
d91d8a3f KH |
4650 | return ret; |
4651 | } | |
eb033556 | 4652 | |
c8e32cc1 DV |
4653 | /** |
4654 | * drm_mode_config_reset - call ->reset callbacks | |
4655 | * @dev: drm device | |
4656 | * | |
4657 | * This functions calls all the crtc's, encoder's and connector's ->reset | |
4658 | * callback. Drivers can use this in e.g. their driver load or resume code to | |
4659 | * reset hardware and software state. | |
4660 | */ | |
eb033556 CW |
4661 | void drm_mode_config_reset(struct drm_device *dev) |
4662 | { | |
4663 | struct drm_crtc *crtc; | |
4664 | struct drm_encoder *encoder; | |
4665 | struct drm_connector *connector; | |
4666 | ||
4667 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) | |
4668 | if (crtc->funcs->reset) | |
4669 | crtc->funcs->reset(crtc); | |
4670 | ||
4671 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) | |
4672 | if (encoder->funcs->reset) | |
4673 | encoder->funcs->reset(encoder); | |
4674 | ||
5e2cb2f6 DV |
4675 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
4676 | connector->status = connector_status_unknown; | |
4677 | ||
eb033556 CW |
4678 | if (connector->funcs->reset) |
4679 | connector->funcs->reset(connector); | |
5e2cb2f6 | 4680 | } |
eb033556 CW |
4681 | } |
4682 | EXPORT_SYMBOL(drm_mode_config_reset); | |
ff72145b | 4683 | |
c8e32cc1 DV |
4684 | /** |
4685 | * drm_mode_create_dumb_ioctl - create a dumb backing storage buffer | |
4686 | * @dev: DRM device | |
4687 | * @data: ioctl data | |
4688 | * @file_priv: DRM file info | |
4689 | * | |
4690 | * This creates a new dumb buffer in the driver's backing storage manager (GEM, | |
4691 | * TTM or something else entirely) and returns the resulting buffer handle. This | |
4692 | * handle can then be wrapped up into a framebuffer modeset object. | |
4693 | * | |
4694 | * Note that userspace is not allowed to use such objects for render | |
4695 | * acceleration - drivers must create their own private ioctls for such a use | |
4696 | * case. | |
4697 | * | |
4698 | * Called by the user via ioctl. | |
4699 | * | |
4700 | * Returns: | |
4701 | * Zero on success, errno on failure. | |
4702 | */ | |
ff72145b DA |
4703 | int drm_mode_create_dumb_ioctl(struct drm_device *dev, |
4704 | void *data, struct drm_file *file_priv) | |
4705 | { | |
4706 | struct drm_mode_create_dumb *args = data; | |
b28cd41f | 4707 | u32 cpp, stride, size; |
ff72145b DA |
4708 | |
4709 | if (!dev->driver->dumb_create) | |
4710 | return -ENOSYS; | |
b28cd41f DH |
4711 | if (!args->width || !args->height || !args->bpp) |
4712 | return -EINVAL; | |
4713 | ||
4714 | /* overflow checks for 32bit size calculations */ | |
4715 | cpp = DIV_ROUND_UP(args->bpp, 8); | |
4716 | if (cpp > 0xffffffffU / args->width) | |
4717 | return -EINVAL; | |
4718 | stride = cpp * args->width; | |
4719 | if (args->height > 0xffffffffU / stride) | |
4720 | return -EINVAL; | |
4721 | ||
4722 | /* test for wrap-around */ | |
4723 | size = args->height * stride; | |
4724 | if (PAGE_ALIGN(size) == 0) | |
4725 | return -EINVAL; | |
4726 | ||
ff72145b DA |
4727 | return dev->driver->dumb_create(file_priv, dev, args); |
4728 | } | |
4729 | ||
c8e32cc1 DV |
4730 | /** |
4731 | * drm_mode_mmap_dumb_ioctl - create an mmap offset for a dumb backing storage buffer | |
4732 | * @dev: DRM device | |
4733 | * @data: ioctl data | |
4734 | * @file_priv: DRM file info | |
4735 | * | |
4736 | * Allocate an offset in the drm device node's address space to be able to | |
4737 | * memory map a dumb buffer. | |
4738 | * | |
4739 | * Called by the user via ioctl. | |
4740 | * | |
4741 | * Returns: | |
4742 | * Zero on success, errno on failure. | |
4743 | */ | |
ff72145b DA |
4744 | int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, |
4745 | void *data, struct drm_file *file_priv) | |
4746 | { | |
4747 | struct drm_mode_map_dumb *args = data; | |
4748 | ||
4749 | /* call driver ioctl to get mmap offset */ | |
4750 | if (!dev->driver->dumb_map_offset) | |
4751 | return -ENOSYS; | |
4752 | ||
4753 | return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); | |
4754 | } | |
4755 | ||
c8e32cc1 DV |
4756 | /** |
4757 | * drm_mode_destroy_dumb_ioctl - destroy a dumb backing strage buffer | |
4758 | * @dev: DRM device | |
4759 | * @data: ioctl data | |
4760 | * @file_priv: DRM file info | |
4761 | * | |
4762 | * This destroys the userspace handle for the given dumb backing storage buffer. | |
4763 | * Since buffer objects must be reference counted in the kernel a buffer object | |
4764 | * won't be immediately freed if a framebuffer modeset object still uses it. | |
4765 | * | |
4766 | * Called by the user via ioctl. | |
4767 | * | |
4768 | * Returns: | |
4769 | * Zero on success, errno on failure. | |
4770 | */ | |
ff72145b DA |
4771 | int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, |
4772 | void *data, struct drm_file *file_priv) | |
4773 | { | |
4774 | struct drm_mode_destroy_dumb *args = data; | |
4775 | ||
4776 | if (!dev->driver->dumb_destroy) | |
4777 | return -ENOSYS; | |
4778 | ||
4779 | return dev->driver->dumb_destroy(file_priv, dev, args->handle); | |
4780 | } | |
248dbc23 | 4781 | |
c8e32cc1 DV |
4782 | /** |
4783 | * drm_fb_get_bpp_depth - get the bpp/depth values for format | |
4784 | * @format: pixel format (DRM_FORMAT_*) | |
4785 | * @depth: storage for the depth value | |
4786 | * @bpp: storage for the bpp value | |
4787 | * | |
4788 | * This only supports RGB formats here for compat with code that doesn't use | |
4789 | * pixel formats directly yet. | |
248dbc23 DA |
4790 | */ |
4791 | void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, | |
4792 | int *bpp) | |
4793 | { | |
4794 | switch (format) { | |
c51a6bc5 | 4795 | case DRM_FORMAT_C8: |
04b3924d VS |
4796 | case DRM_FORMAT_RGB332: |
4797 | case DRM_FORMAT_BGR233: | |
248dbc23 DA |
4798 | *depth = 8; |
4799 | *bpp = 8; | |
4800 | break; | |
04b3924d VS |
4801 | case DRM_FORMAT_XRGB1555: |
4802 | case DRM_FORMAT_XBGR1555: | |
4803 | case DRM_FORMAT_RGBX5551: | |
4804 | case DRM_FORMAT_BGRX5551: | |
4805 | case DRM_FORMAT_ARGB1555: | |
4806 | case DRM_FORMAT_ABGR1555: | |
4807 | case DRM_FORMAT_RGBA5551: | |
4808 | case DRM_FORMAT_BGRA5551: | |
248dbc23 DA |
4809 | *depth = 15; |
4810 | *bpp = 16; | |
4811 | break; | |
04b3924d VS |
4812 | case DRM_FORMAT_RGB565: |
4813 | case DRM_FORMAT_BGR565: | |
248dbc23 DA |
4814 | *depth = 16; |
4815 | *bpp = 16; | |
4816 | break; | |
04b3924d VS |
4817 | case DRM_FORMAT_RGB888: |
4818 | case DRM_FORMAT_BGR888: | |
4819 | *depth = 24; | |
4820 | *bpp = 24; | |
4821 | break; | |
4822 | case DRM_FORMAT_XRGB8888: | |
4823 | case DRM_FORMAT_XBGR8888: | |
4824 | case DRM_FORMAT_RGBX8888: | |
4825 | case DRM_FORMAT_BGRX8888: | |
248dbc23 DA |
4826 | *depth = 24; |
4827 | *bpp = 32; | |
4828 | break; | |
04b3924d VS |
4829 | case DRM_FORMAT_XRGB2101010: |
4830 | case DRM_FORMAT_XBGR2101010: | |
4831 | case DRM_FORMAT_RGBX1010102: | |
4832 | case DRM_FORMAT_BGRX1010102: | |
4833 | case DRM_FORMAT_ARGB2101010: | |
4834 | case DRM_FORMAT_ABGR2101010: | |
4835 | case DRM_FORMAT_RGBA1010102: | |
4836 | case DRM_FORMAT_BGRA1010102: | |
248dbc23 DA |
4837 | *depth = 30; |
4838 | *bpp = 32; | |
4839 | break; | |
04b3924d VS |
4840 | case DRM_FORMAT_ARGB8888: |
4841 | case DRM_FORMAT_ABGR8888: | |
4842 | case DRM_FORMAT_RGBA8888: | |
4843 | case DRM_FORMAT_BGRA8888: | |
248dbc23 DA |
4844 | *depth = 32; |
4845 | *bpp = 32; | |
4846 | break; | |
4847 | default: | |
23c453a4 VS |
4848 | DRM_DEBUG_KMS("unsupported pixel format %s\n", |
4849 | drm_get_format_name(format)); | |
248dbc23 DA |
4850 | *depth = 0; |
4851 | *bpp = 0; | |
4852 | break; | |
4853 | } | |
4854 | } | |
4855 | EXPORT_SYMBOL(drm_fb_get_bpp_depth); | |
141670e9 VS |
4856 | |
4857 | /** | |
4858 | * drm_format_num_planes - get the number of planes for format | |
4859 | * @format: pixel format (DRM_FORMAT_*) | |
4860 | * | |
c8e32cc1 | 4861 | * Returns: |
141670e9 VS |
4862 | * The number of planes used by the specified pixel format. |
4863 | */ | |
4864 | int drm_format_num_planes(uint32_t format) | |
4865 | { | |
4866 | switch (format) { | |
4867 | case DRM_FORMAT_YUV410: | |
4868 | case DRM_FORMAT_YVU410: | |
4869 | case DRM_FORMAT_YUV411: | |
4870 | case DRM_FORMAT_YVU411: | |
4871 | case DRM_FORMAT_YUV420: | |
4872 | case DRM_FORMAT_YVU420: | |
4873 | case DRM_FORMAT_YUV422: | |
4874 | case DRM_FORMAT_YVU422: | |
4875 | case DRM_FORMAT_YUV444: | |
4876 | case DRM_FORMAT_YVU444: | |
4877 | return 3; | |
4878 | case DRM_FORMAT_NV12: | |
4879 | case DRM_FORMAT_NV21: | |
4880 | case DRM_FORMAT_NV16: | |
4881 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
4882 | case DRM_FORMAT_NV24: |
4883 | case DRM_FORMAT_NV42: | |
141670e9 VS |
4884 | return 2; |
4885 | default: | |
4886 | return 1; | |
4887 | } | |
4888 | } | |
4889 | EXPORT_SYMBOL(drm_format_num_planes); | |
5a86bd55 VS |
4890 | |
4891 | /** | |
4892 | * drm_format_plane_cpp - determine the bytes per pixel value | |
4893 | * @format: pixel format (DRM_FORMAT_*) | |
4894 | * @plane: plane index | |
4895 | * | |
c8e32cc1 | 4896 | * Returns: |
5a86bd55 VS |
4897 | * The bytes per pixel value for the specified plane. |
4898 | */ | |
4899 | int drm_format_plane_cpp(uint32_t format, int plane) | |
4900 | { | |
4901 | unsigned int depth; | |
4902 | int bpp; | |
4903 | ||
4904 | if (plane >= drm_format_num_planes(format)) | |
4905 | return 0; | |
4906 | ||
4907 | switch (format) { | |
4908 | case DRM_FORMAT_YUYV: | |
4909 | case DRM_FORMAT_YVYU: | |
4910 | case DRM_FORMAT_UYVY: | |
4911 | case DRM_FORMAT_VYUY: | |
4912 | return 2; | |
4913 | case DRM_FORMAT_NV12: | |
4914 | case DRM_FORMAT_NV21: | |
4915 | case DRM_FORMAT_NV16: | |
4916 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
4917 | case DRM_FORMAT_NV24: |
4918 | case DRM_FORMAT_NV42: | |
5a86bd55 VS |
4919 | return plane ? 2 : 1; |
4920 | case DRM_FORMAT_YUV410: | |
4921 | case DRM_FORMAT_YVU410: | |
4922 | case DRM_FORMAT_YUV411: | |
4923 | case DRM_FORMAT_YVU411: | |
4924 | case DRM_FORMAT_YUV420: | |
4925 | case DRM_FORMAT_YVU420: | |
4926 | case DRM_FORMAT_YUV422: | |
4927 | case DRM_FORMAT_YVU422: | |
4928 | case DRM_FORMAT_YUV444: | |
4929 | case DRM_FORMAT_YVU444: | |
4930 | return 1; | |
4931 | default: | |
4932 | drm_fb_get_bpp_depth(format, &depth, &bpp); | |
4933 | return bpp >> 3; | |
4934 | } | |
4935 | } | |
4936 | EXPORT_SYMBOL(drm_format_plane_cpp); | |
01b68b04 VS |
4937 | |
4938 | /** | |
4939 | * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor | |
4940 | * @format: pixel format (DRM_FORMAT_*) | |
4941 | * | |
c8e32cc1 | 4942 | * Returns: |
01b68b04 VS |
4943 | * The horizontal chroma subsampling factor for the |
4944 | * specified pixel format. | |
4945 | */ | |
4946 | int drm_format_horz_chroma_subsampling(uint32_t format) | |
4947 | { | |
4948 | switch (format) { | |
4949 | case DRM_FORMAT_YUV411: | |
4950 | case DRM_FORMAT_YVU411: | |
4951 | case DRM_FORMAT_YUV410: | |
4952 | case DRM_FORMAT_YVU410: | |
4953 | return 4; | |
4954 | case DRM_FORMAT_YUYV: | |
4955 | case DRM_FORMAT_YVYU: | |
4956 | case DRM_FORMAT_UYVY: | |
4957 | case DRM_FORMAT_VYUY: | |
4958 | case DRM_FORMAT_NV12: | |
4959 | case DRM_FORMAT_NV21: | |
4960 | case DRM_FORMAT_NV16: | |
4961 | case DRM_FORMAT_NV61: | |
4962 | case DRM_FORMAT_YUV422: | |
4963 | case DRM_FORMAT_YVU422: | |
4964 | case DRM_FORMAT_YUV420: | |
4965 | case DRM_FORMAT_YVU420: | |
4966 | return 2; | |
4967 | default: | |
4968 | return 1; | |
4969 | } | |
4970 | } | |
4971 | EXPORT_SYMBOL(drm_format_horz_chroma_subsampling); | |
4972 | ||
4973 | /** | |
4974 | * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor | |
4975 | * @format: pixel format (DRM_FORMAT_*) | |
4976 | * | |
c8e32cc1 | 4977 | * Returns: |
01b68b04 VS |
4978 | * The vertical chroma subsampling factor for the |
4979 | * specified pixel format. | |
4980 | */ | |
4981 | int drm_format_vert_chroma_subsampling(uint32_t format) | |
4982 | { | |
4983 | switch (format) { | |
4984 | case DRM_FORMAT_YUV410: | |
4985 | case DRM_FORMAT_YVU410: | |
4986 | return 4; | |
4987 | case DRM_FORMAT_YUV420: | |
4988 | case DRM_FORMAT_YVU420: | |
4989 | case DRM_FORMAT_NV12: | |
4990 | case DRM_FORMAT_NV21: | |
4991 | return 2; | |
4992 | default: | |
4993 | return 1; | |
4994 | } | |
4995 | } | |
4996 | EXPORT_SYMBOL(drm_format_vert_chroma_subsampling); | |
87d24fc3 | 4997 | |
3c9855f6 VS |
4998 | /** |
4999 | * drm_rotation_simplify() - Try to simplify the rotation | |
5000 | * @rotation: Rotation to be simplified | |
5001 | * @supported_rotations: Supported rotations | |
5002 | * | |
5003 | * Attempt to simplify the rotation to a form that is supported. | |
5004 | * Eg. if the hardware supports everything except DRM_REFLECT_X | |
5005 | * one could call this function like this: | |
5006 | * | |
5007 | * drm_rotation_simplify(rotation, BIT(DRM_ROTATE_0) | | |
5008 | * BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_180) | | |
5009 | * BIT(DRM_ROTATE_270) | BIT(DRM_REFLECT_Y)); | |
5010 | * | |
5011 | * to eliminate the DRM_ROTATE_X flag. Depending on what kind of | |
5012 | * transforms the hardware supports, this function may not | |
5013 | * be able to produce a supported transform, so the caller should | |
5014 | * check the result afterwards. | |
5015 | */ | |
5016 | unsigned int drm_rotation_simplify(unsigned int rotation, | |
5017 | unsigned int supported_rotations) | |
5018 | { | |
5019 | if (rotation & ~supported_rotations) { | |
5020 | rotation ^= BIT(DRM_REFLECT_X) | BIT(DRM_REFLECT_Y); | |
5021 | rotation = (rotation & ~0xf) | BIT((ffs(rotation & 0xf) + 1) % 4); | |
5022 | } | |
5023 | ||
5024 | return rotation; | |
5025 | } | |
5026 | EXPORT_SYMBOL(drm_rotation_simplify); | |
5027 | ||
87d24fc3 LP |
5028 | /** |
5029 | * drm_mode_config_init - initialize DRM mode_configuration structure | |
5030 | * @dev: DRM device | |
5031 | * | |
5032 | * Initialize @dev's mode_config structure, used for tracking the graphics | |
5033 | * configuration of @dev. | |
5034 | * | |
5035 | * Since this initializes the modeset locks, no locking is possible. Which is no | |
5036 | * problem, since this should happen single threaded at init time. It is the | |
5037 | * driver's problem to ensure this guarantee. | |
5038 | * | |
5039 | */ | |
5040 | void drm_mode_config_init(struct drm_device *dev) | |
5041 | { | |
5042 | mutex_init(&dev->mode_config.mutex); | |
51fd371b | 5043 | drm_modeset_lock_init(&dev->mode_config.connection_mutex); |
87d24fc3 LP |
5044 | mutex_init(&dev->mode_config.idr_mutex); |
5045 | mutex_init(&dev->mode_config.fb_lock); | |
5046 | INIT_LIST_HEAD(&dev->mode_config.fb_list); | |
5047 | INIT_LIST_HEAD(&dev->mode_config.crtc_list); | |
5048 | INIT_LIST_HEAD(&dev->mode_config.connector_list); | |
3b336ec4 | 5049 | INIT_LIST_HEAD(&dev->mode_config.bridge_list); |
87d24fc3 LP |
5050 | INIT_LIST_HEAD(&dev->mode_config.encoder_list); |
5051 | INIT_LIST_HEAD(&dev->mode_config.property_list); | |
5052 | INIT_LIST_HEAD(&dev->mode_config.property_blob_list); | |
5053 | INIT_LIST_HEAD(&dev->mode_config.plane_list); | |
5054 | idr_init(&dev->mode_config.crtc_idr); | |
5055 | ||
5056 | drm_modeset_lock_all(dev); | |
5057 | drm_mode_create_standard_connector_properties(dev); | |
9922ab5a | 5058 | drm_mode_create_standard_plane_properties(dev); |
87d24fc3 LP |
5059 | drm_modeset_unlock_all(dev); |
5060 | ||
5061 | /* Just to be sure */ | |
5062 | dev->mode_config.num_fb = 0; | |
5063 | dev->mode_config.num_connector = 0; | |
5064 | dev->mode_config.num_crtc = 0; | |
5065 | dev->mode_config.num_encoder = 0; | |
e27dde3e MR |
5066 | dev->mode_config.num_overlay_plane = 0; |
5067 | dev->mode_config.num_total_plane = 0; | |
87d24fc3 LP |
5068 | } |
5069 | EXPORT_SYMBOL(drm_mode_config_init); | |
5070 | ||
5071 | /** | |
5072 | * drm_mode_config_cleanup - free up DRM mode_config info | |
5073 | * @dev: DRM device | |
5074 | * | |
5075 | * Free up all the connectors and CRTCs associated with this DRM device, then | |
5076 | * free up the framebuffers and associated buffer objects. | |
5077 | * | |
5078 | * Note that since this /should/ happen single-threaded at driver/device | |
5079 | * teardown time, no locking is required. It's the driver's job to ensure that | |
5080 | * this guarantee actually holds true. | |
5081 | * | |
5082 | * FIXME: cleanup any dangling user buffer objects too | |
5083 | */ | |
5084 | void drm_mode_config_cleanup(struct drm_device *dev) | |
5085 | { | |
5086 | struct drm_connector *connector, *ot; | |
5087 | struct drm_crtc *crtc, *ct; | |
5088 | struct drm_encoder *encoder, *enct; | |
3b336ec4 | 5089 | struct drm_bridge *bridge, *brt; |
87d24fc3 LP |
5090 | struct drm_framebuffer *fb, *fbt; |
5091 | struct drm_property *property, *pt; | |
5092 | struct drm_property_blob *blob, *bt; | |
5093 | struct drm_plane *plane, *plt; | |
5094 | ||
5095 | list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, | |
5096 | head) { | |
5097 | encoder->funcs->destroy(encoder); | |
5098 | } | |
5099 | ||
3b336ec4 SP |
5100 | list_for_each_entry_safe(bridge, brt, |
5101 | &dev->mode_config.bridge_list, head) { | |
5102 | bridge->funcs->destroy(bridge); | |
5103 | } | |
5104 | ||
87d24fc3 LP |
5105 | list_for_each_entry_safe(connector, ot, |
5106 | &dev->mode_config.connector_list, head) { | |
5107 | connector->funcs->destroy(connector); | |
5108 | } | |
5109 | ||
5110 | list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, | |
5111 | head) { | |
5112 | drm_property_destroy(dev, property); | |
5113 | } | |
5114 | ||
5115 | list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list, | |
5116 | head) { | |
5117 | drm_property_destroy_blob(dev, blob); | |
5118 | } | |
5119 | ||
5120 | /* | |
5121 | * Single-threaded teardown context, so it's not required to grab the | |
5122 | * fb_lock to protect against concurrent fb_list access. Contrary, it | |
5123 | * would actually deadlock with the drm_framebuffer_cleanup function. | |
5124 | * | |
5125 | * Also, if there are any framebuffers left, that's a driver leak now, | |
5126 | * so politely WARN about this. | |
5127 | */ | |
5128 | WARN_ON(!list_empty(&dev->mode_config.fb_list)); | |
5129 | list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { | |
5130 | drm_framebuffer_remove(fb); | |
5131 | } | |
5132 | ||
5133 | list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, | |
5134 | head) { | |
5135 | plane->funcs->destroy(plane); | |
5136 | } | |
5137 | ||
5138 | list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { | |
5139 | crtc->funcs->destroy(crtc); | |
5140 | } | |
5141 | ||
5142 | idr_destroy(&dev->mode_config.crtc_idr); | |
51fd371b | 5143 | drm_modeset_lock_fini(&dev->mode_config.connection_mutex); |
87d24fc3 LP |
5144 | } |
5145 | EXPORT_SYMBOL(drm_mode_config_cleanup); | |
c1df5f3c VS |
5146 | |
5147 | struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev, | |
5148 | unsigned int supported_rotations) | |
5149 | { | |
5150 | static const struct drm_prop_enum_list props[] = { | |
5151 | { DRM_ROTATE_0, "rotate-0" }, | |
5152 | { DRM_ROTATE_90, "rotate-90" }, | |
5153 | { DRM_ROTATE_180, "rotate-180" }, | |
5154 | { DRM_ROTATE_270, "rotate-270" }, | |
5155 | { DRM_REFLECT_X, "reflect-x" }, | |
5156 | { DRM_REFLECT_Y, "reflect-y" }, | |
5157 | }; | |
5158 | ||
5159 | return drm_property_create_bitmask(dev, 0, "rotation", | |
5160 | props, ARRAY_SIZE(props), | |
5161 | supported_rotations); | |
5162 | } | |
5163 | EXPORT_SYMBOL(drm_mode_create_rotation_property); |