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 | 42 | #include "drm_crtc_internal.h" |
67d0ec4e | 43 | #include "drm_internal.h" |
8bd441b2 | 44 | |
c394c2b0 MR |
45 | static struct drm_framebuffer *add_framebuffer_internal(struct drm_device *dev, |
46 | struct drm_mode_fb_cmd2 *r, | |
47 | struct drm_file *file_priv); | |
48 | ||
f453ba04 DA |
49 | /* Avoid boilerplate. I'm tired of typing. */ |
50 | #define DRM_ENUM_NAME_FN(fnname, list) \ | |
d20d3174 | 51 | const char *fnname(int val) \ |
f453ba04 DA |
52 | { \ |
53 | int i; \ | |
54 | for (i = 0; i < ARRAY_SIZE(list); i++) { \ | |
55 | if (list[i].type == val) \ | |
56 | return list[i].name; \ | |
57 | } \ | |
58 | return "(unknown)"; \ | |
59 | } | |
60 | ||
61 | /* | |
62 | * Global properties | |
63 | */ | |
d20d3174 | 64 | static const struct drm_prop_enum_list drm_dpms_enum_list[] = |
f453ba04 DA |
65 | { { DRM_MODE_DPMS_ON, "On" }, |
66 | { DRM_MODE_DPMS_STANDBY, "Standby" }, | |
67 | { DRM_MODE_DPMS_SUSPEND, "Suspend" }, | |
68 | { DRM_MODE_DPMS_OFF, "Off" } | |
69 | }; | |
70 | ||
71 | DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list) | |
72 | ||
9922ab5a RC |
73 | static const struct drm_prop_enum_list drm_plane_type_enum_list[] = |
74 | { | |
75 | { DRM_PLANE_TYPE_OVERLAY, "Overlay" }, | |
76 | { DRM_PLANE_TYPE_PRIMARY, "Primary" }, | |
77 | { DRM_PLANE_TYPE_CURSOR, "Cursor" }, | |
78 | }; | |
79 | ||
f453ba04 DA |
80 | /* |
81 | * Optional properties | |
82 | */ | |
d20d3174 | 83 | static const struct drm_prop_enum_list drm_scaling_mode_enum_list[] = |
f453ba04 | 84 | { |
53bd8389 JB |
85 | { DRM_MODE_SCALE_NONE, "None" }, |
86 | { DRM_MODE_SCALE_FULLSCREEN, "Full" }, | |
87 | { DRM_MODE_SCALE_CENTER, "Center" }, | |
88 | { DRM_MODE_SCALE_ASPECT, "Full aspect" }, | |
f453ba04 DA |
89 | }; |
90 | ||
ff587e45 VK |
91 | static const struct drm_prop_enum_list drm_aspect_ratio_enum_list[] = { |
92 | { DRM_MODE_PICTURE_ASPECT_NONE, "Automatic" }, | |
93 | { DRM_MODE_PICTURE_ASPECT_4_3, "4:3" }, | |
94 | { DRM_MODE_PICTURE_ASPECT_16_9, "16:9" }, | |
95 | }; | |
96 | ||
f453ba04 DA |
97 | /* |
98 | * Non-global properties, but "required" for certain connectors. | |
99 | */ | |
d20d3174 | 100 | static const struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = |
f453ba04 DA |
101 | { |
102 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ | |
103 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
104 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
105 | }; | |
106 | ||
107 | DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list) | |
108 | ||
d20d3174 | 109 | static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = |
f453ba04 DA |
110 | { |
111 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ | |
112 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
113 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
114 | }; | |
115 | ||
116 | DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name, | |
117 | drm_dvi_i_subconnector_enum_list) | |
118 | ||
d20d3174 | 119 | static const struct drm_prop_enum_list drm_tv_select_enum_list[] = |
f453ba04 DA |
120 | { |
121 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ | |
122 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
123 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
124 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 125 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
126 | }; |
127 | ||
128 | DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list) | |
129 | ||
d20d3174 | 130 | static const struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = |
f453ba04 DA |
131 | { |
132 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ | |
133 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
134 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
135 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 136 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
137 | }; |
138 | ||
139 | DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, | |
140 | drm_tv_subconnector_enum_list) | |
141 | ||
d20d3174 | 142 | static const struct drm_prop_enum_list drm_dirty_info_enum_list[] = { |
884840aa JB |
143 | { DRM_MODE_DIRTY_OFF, "Off" }, |
144 | { DRM_MODE_DIRTY_ON, "On" }, | |
145 | { DRM_MODE_DIRTY_ANNOTATE, "Annotate" }, | |
146 | }; | |
147 | ||
f453ba04 DA |
148 | struct drm_conn_prop_enum_list { |
149 | int type; | |
d20d3174 | 150 | const char *name; |
b21e3afe | 151 | struct ida ida; |
f453ba04 DA |
152 | }; |
153 | ||
154 | /* | |
155 | * Connector and encoder types. | |
156 | */ | |
157 | static struct drm_conn_prop_enum_list drm_connector_enum_list[] = | |
b21e3afe IM |
158 | { { DRM_MODE_CONNECTOR_Unknown, "Unknown" }, |
159 | { DRM_MODE_CONNECTOR_VGA, "VGA" }, | |
160 | { DRM_MODE_CONNECTOR_DVII, "DVI-I" }, | |
161 | { DRM_MODE_CONNECTOR_DVID, "DVI-D" }, | |
162 | { DRM_MODE_CONNECTOR_DVIA, "DVI-A" }, | |
163 | { DRM_MODE_CONNECTOR_Composite, "Composite" }, | |
164 | { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO" }, | |
165 | { DRM_MODE_CONNECTOR_LVDS, "LVDS" }, | |
166 | { DRM_MODE_CONNECTOR_Component, "Component" }, | |
167 | { DRM_MODE_CONNECTOR_9PinDIN, "DIN" }, | |
168 | { DRM_MODE_CONNECTOR_DisplayPort, "DP" }, | |
169 | { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" }, | |
170 | { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" }, | |
171 | { DRM_MODE_CONNECTOR_TV, "TV" }, | |
172 | { DRM_MODE_CONNECTOR_eDP, "eDP" }, | |
173 | { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual" }, | |
b8923273 | 174 | { DRM_MODE_CONNECTOR_DSI, "DSI" }, |
f453ba04 DA |
175 | }; |
176 | ||
d20d3174 | 177 | static const struct drm_prop_enum_list drm_encoder_enum_list[] = |
f453ba04 DA |
178 | { { DRM_MODE_ENCODER_NONE, "None" }, |
179 | { DRM_MODE_ENCODER_DAC, "DAC" }, | |
180 | { DRM_MODE_ENCODER_TMDS, "TMDS" }, | |
181 | { DRM_MODE_ENCODER_LVDS, "LVDS" }, | |
182 | { DRM_MODE_ENCODER_TVDAC, "TV" }, | |
a7331e5c | 183 | { DRM_MODE_ENCODER_VIRTUAL, "Virtual" }, |
b8923273 | 184 | { DRM_MODE_ENCODER_DSI, "DSI" }, |
182407a6 | 185 | { DRM_MODE_ENCODER_DPMST, "DP MST" }, |
f453ba04 DA |
186 | }; |
187 | ||
ac1bb36c JB |
188 | static const struct drm_prop_enum_list drm_subpixel_enum_list[] = |
189 | { | |
190 | { SubPixelUnknown, "Unknown" }, | |
191 | { SubPixelHorizontalRGB, "Horizontal RGB" }, | |
192 | { SubPixelHorizontalBGR, "Horizontal BGR" }, | |
193 | { SubPixelVerticalRGB, "Vertical RGB" }, | |
194 | { SubPixelVerticalBGR, "Vertical BGR" }, | |
195 | { SubPixelNone, "None" }, | |
196 | }; | |
197 | ||
b21e3afe IM |
198 | void drm_connector_ida_init(void) |
199 | { | |
200 | int i; | |
201 | ||
202 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) | |
203 | ida_init(&drm_connector_enum_list[i].ida); | |
204 | } | |
205 | ||
206 | void drm_connector_ida_destroy(void) | |
207 | { | |
208 | int i; | |
209 | ||
210 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) | |
211 | ida_destroy(&drm_connector_enum_list[i].ida); | |
212 | } | |
213 | ||
c8e32cc1 DV |
214 | /** |
215 | * drm_get_connector_status_name - return a string for connector status | |
216 | * @status: connector status to compute name of | |
217 | * | |
218 | * In contrast to the other drm_get_*_name functions this one here returns a | |
219 | * const pointer and hence is threadsafe. | |
220 | */ | |
d20d3174 | 221 | const char *drm_get_connector_status_name(enum drm_connector_status status) |
f453ba04 DA |
222 | { |
223 | if (status == connector_status_connected) | |
224 | return "connected"; | |
225 | else if (status == connector_status_disconnected) | |
226 | return "disconnected"; | |
227 | else | |
228 | return "unknown"; | |
229 | } | |
ed7951dc | 230 | EXPORT_SYMBOL(drm_get_connector_status_name); |
f453ba04 | 231 | |
ac1bb36c JB |
232 | /** |
233 | * drm_get_subpixel_order_name - return a string for a given subpixel enum | |
234 | * @order: enum of subpixel_order | |
235 | * | |
236 | * Note you could abuse this and return something out of bounds, but that | |
237 | * would be a caller error. No unscrubbed user data should make it here. | |
238 | */ | |
239 | const char *drm_get_subpixel_order_name(enum subpixel_order order) | |
240 | { | |
241 | return drm_subpixel_enum_list[order].name; | |
242 | } | |
243 | EXPORT_SYMBOL(drm_get_subpixel_order_name); | |
244 | ||
6ba6d03e VS |
245 | static char printable_char(int c) |
246 | { | |
247 | return isascii(c) && isprint(c) ? c : '?'; | |
248 | } | |
249 | ||
c8e32cc1 DV |
250 | /** |
251 | * drm_get_format_name - return a string for drm fourcc format | |
252 | * @format: format to compute name of | |
253 | * | |
254 | * Note that the buffer used by this function is globally shared and owned by | |
255 | * the function itself. | |
256 | * | |
257 | * FIXME: This isn't really multithreading safe. | |
258 | */ | |
d20d3174 | 259 | const char *drm_get_format_name(uint32_t format) |
6ba6d03e VS |
260 | { |
261 | static char buf[32]; | |
262 | ||
263 | snprintf(buf, sizeof(buf), | |
264 | "%c%c%c%c %s-endian (0x%08x)", | |
265 | printable_char(format & 0xff), | |
266 | printable_char((format >> 8) & 0xff), | |
267 | printable_char((format >> 16) & 0xff), | |
268 | printable_char((format >> 24) & 0x7f), | |
269 | format & DRM_FORMAT_BIG_ENDIAN ? "big" : "little", | |
270 | format); | |
271 | ||
272 | return buf; | |
273 | } | |
274 | EXPORT_SYMBOL(drm_get_format_name); | |
275 | ||
2ee39452 DA |
276 | /* |
277 | * Internal function to assign a slot in the object idr and optionally | |
278 | * register the object into the idr. | |
279 | */ | |
280 | static int drm_mode_object_get_reg(struct drm_device *dev, | |
281 | struct drm_mode_object *obj, | |
282 | uint32_t obj_type, | |
283 | bool register_obj) | |
284 | { | |
285 | int ret; | |
286 | ||
287 | mutex_lock(&dev->mode_config.idr_mutex); | |
288 | ret = idr_alloc(&dev->mode_config.crtc_idr, register_obj ? obj : NULL, 1, 0, GFP_KERNEL); | |
289 | if (ret >= 0) { | |
290 | /* | |
291 | * Set up the object linking under the protection of the idr | |
292 | * lock so that other users can't see inconsistent state. | |
293 | */ | |
294 | obj->id = ret; | |
295 | obj->type = obj_type; | |
296 | } | |
297 | mutex_unlock(&dev->mode_config.idr_mutex); | |
298 | ||
299 | return ret < 0 ? ret : 0; | |
300 | } | |
301 | ||
f453ba04 | 302 | /** |
065a50ed | 303 | * drm_mode_object_get - allocate a new modeset identifier |
f453ba04 | 304 | * @dev: DRM device |
065a50ed DV |
305 | * @obj: object pointer, used to generate unique ID |
306 | * @obj_type: object type | |
f453ba04 | 307 | * |
f453ba04 | 308 | * Create a unique identifier based on @ptr in @dev's identifier space. Used |
c8e32cc1 DV |
309 | * for tracking modes, CRTCs and connectors. Note that despite the _get postfix |
310 | * modeset identifiers are _not_ reference counted. Hence don't use this for | |
311 | * reference counted modeset objects like framebuffers. | |
f453ba04 | 312 | * |
c8e32cc1 | 313 | * Returns: |
f453ba04 DA |
314 | * New unique (relative to other objects in @dev) integer identifier for the |
315 | * object. | |
316 | */ | |
8bd441b2 DV |
317 | int drm_mode_object_get(struct drm_device *dev, |
318 | struct drm_mode_object *obj, uint32_t obj_type) | |
f453ba04 | 319 | { |
2ee39452 DA |
320 | return drm_mode_object_get_reg(dev, obj, obj_type, true); |
321 | } | |
f453ba04 | 322 | |
2ee39452 DA |
323 | static void drm_mode_object_register(struct drm_device *dev, |
324 | struct drm_mode_object *obj) | |
325 | { | |
ad2563c2 | 326 | mutex_lock(&dev->mode_config.idr_mutex); |
2ee39452 | 327 | idr_replace(&dev->mode_config.crtc_idr, obj, obj->id); |
ad2563c2 | 328 | mutex_unlock(&dev->mode_config.idr_mutex); |
f453ba04 DA |
329 | } |
330 | ||
331 | /** | |
065a50ed | 332 | * drm_mode_object_put - free a modeset identifer |
f453ba04 | 333 | * @dev: DRM device |
065a50ed | 334 | * @object: object to free |
f453ba04 | 335 | * |
c8e32cc1 DV |
336 | * Free @id from @dev's unique identifier pool. Note that despite the _get |
337 | * postfix modeset identifiers are _not_ reference counted. Hence don't use this | |
338 | * for reference counted modeset objects like framebuffers. | |
f453ba04 | 339 | */ |
8bd441b2 DV |
340 | void drm_mode_object_put(struct drm_device *dev, |
341 | struct drm_mode_object *object) | |
f453ba04 | 342 | { |
ad2563c2 | 343 | mutex_lock(&dev->mode_config.idr_mutex); |
f453ba04 | 344 | idr_remove(&dev->mode_config.crtc_idr, object->id); |
ad2563c2 | 345 | mutex_unlock(&dev->mode_config.idr_mutex); |
f453ba04 DA |
346 | } |
347 | ||
98f75de4 RC |
348 | static struct drm_mode_object *_object_find(struct drm_device *dev, |
349 | uint32_t id, uint32_t type) | |
350 | { | |
351 | struct drm_mode_object *obj = NULL; | |
352 | ||
353 | mutex_lock(&dev->mode_config.idr_mutex); | |
354 | obj = idr_find(&dev->mode_config.crtc_idr, id); | |
168c02ec DV |
355 | if (obj && type != DRM_MODE_OBJECT_ANY && obj->type != type) |
356 | obj = NULL; | |
357 | if (obj && obj->id != id) | |
358 | obj = NULL; | |
359 | /* don't leak out unref'd fb's */ | |
360 | if (obj && (obj->type == DRM_MODE_OBJECT_FB)) | |
98f75de4 RC |
361 | obj = NULL; |
362 | mutex_unlock(&dev->mode_config.idr_mutex); | |
363 | ||
364 | return obj; | |
365 | } | |
366 | ||
786b99ed DV |
367 | /** |
368 | * drm_mode_object_find - look up a drm object with static lifetime | |
369 | * @dev: drm device | |
370 | * @id: id of the mode object | |
371 | * @type: type of the mode object | |
372 | * | |
373 | * Note that framebuffers cannot be looked up with this functions - since those | |
98f75de4 RC |
374 | * are reference counted, they need special treatment. Even with |
375 | * DRM_MODE_OBJECT_ANY (although that will simply return NULL | |
376 | * rather than WARN_ON()). | |
786b99ed | 377 | */ |
7a9c9060 DV |
378 | struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, |
379 | uint32_t id, uint32_t type) | |
f453ba04 | 380 | { |
ad2563c2 | 381 | struct drm_mode_object *obj = NULL; |
f453ba04 | 382 | |
786b99ed DV |
383 | /* Framebuffers are reference counted and need their own lookup |
384 | * function.*/ | |
385 | WARN_ON(type == DRM_MODE_OBJECT_FB); | |
98f75de4 | 386 | obj = _object_find(dev, id, type); |
f453ba04 DA |
387 | return obj; |
388 | } | |
389 | EXPORT_SYMBOL(drm_mode_object_find); | |
390 | ||
f453ba04 DA |
391 | /** |
392 | * drm_framebuffer_init - initialize a framebuffer | |
393 | * @dev: DRM device | |
065a50ed DV |
394 | * @fb: framebuffer to be initialized |
395 | * @funcs: ... with these functions | |
f453ba04 | 396 | * |
f453ba04 DA |
397 | * Allocates an ID for the framebuffer's parent mode object, sets its mode |
398 | * functions & device file and adds it to the master fd list. | |
399 | * | |
4b096ac1 DV |
400 | * IMPORTANT: |
401 | * This functions publishes the fb and makes it available for concurrent access | |
402 | * by other users. Which means by this point the fb _must_ be fully set up - | |
403 | * since all the fb attributes are invariant over its lifetime, no further | |
404 | * locking but only correct reference counting is required. | |
405 | * | |
c8e32cc1 | 406 | * Returns: |
af901ca1 | 407 | * Zero on success, error code on failure. |
f453ba04 DA |
408 | */ |
409 | int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, | |
410 | const struct drm_framebuffer_funcs *funcs) | |
411 | { | |
412 | int ret; | |
413 | ||
4b096ac1 | 414 | mutex_lock(&dev->mode_config.fb_lock); |
f7eff60e | 415 | kref_init(&fb->refcount); |
4b096ac1 DV |
416 | INIT_LIST_HEAD(&fb->filp_head); |
417 | fb->dev = dev; | |
418 | fb->funcs = funcs; | |
f7eff60e | 419 | |
f453ba04 | 420 | ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB); |
6bfc56aa | 421 | if (ret) |
4b096ac1 | 422 | goto out; |
f453ba04 | 423 | |
f453ba04 DA |
424 | dev->mode_config.num_fb++; |
425 | list_add(&fb->head, &dev->mode_config.fb_list); | |
4b096ac1 DV |
426 | out: |
427 | mutex_unlock(&dev->mode_config.fb_lock); | |
f453ba04 DA |
428 | |
429 | return 0; | |
430 | } | |
431 | EXPORT_SYMBOL(drm_framebuffer_init); | |
432 | ||
83f45fc3 DV |
433 | /* dev->mode_config.fb_lock must be held! */ |
434 | static void __drm_framebuffer_unregister(struct drm_device *dev, | |
435 | struct drm_framebuffer *fb) | |
436 | { | |
437 | mutex_lock(&dev->mode_config.idr_mutex); | |
438 | idr_remove(&dev->mode_config.crtc_idr, fb->base.id); | |
439 | mutex_unlock(&dev->mode_config.idr_mutex); | |
440 | ||
441 | fb->base.id = 0; | |
442 | } | |
443 | ||
f7eff60e RC |
444 | static void drm_framebuffer_free(struct kref *kref) |
445 | { | |
446 | struct drm_framebuffer *fb = | |
447 | container_of(kref, struct drm_framebuffer, refcount); | |
83f45fc3 DV |
448 | struct drm_device *dev = fb->dev; |
449 | ||
450 | /* | |
451 | * The lookup idr holds a weak reference, which has not necessarily been | |
452 | * removed at this point. Check for that. | |
453 | */ | |
454 | mutex_lock(&dev->mode_config.fb_lock); | |
455 | if (fb->base.id) { | |
456 | /* Mark fb as reaped and drop idr ref. */ | |
457 | __drm_framebuffer_unregister(dev, fb); | |
458 | } | |
459 | mutex_unlock(&dev->mode_config.fb_lock); | |
460 | ||
f7eff60e RC |
461 | fb->funcs->destroy(fb); |
462 | } | |
463 | ||
2b677e8c DV |
464 | static struct drm_framebuffer *__drm_framebuffer_lookup(struct drm_device *dev, |
465 | uint32_t id) | |
466 | { | |
467 | struct drm_mode_object *obj = NULL; | |
468 | struct drm_framebuffer *fb; | |
469 | ||
470 | mutex_lock(&dev->mode_config.idr_mutex); | |
471 | obj = idr_find(&dev->mode_config.crtc_idr, id); | |
472 | if (!obj || (obj->type != DRM_MODE_OBJECT_FB) || (obj->id != id)) | |
473 | fb = NULL; | |
474 | else | |
475 | fb = obj_to_fb(obj); | |
476 | mutex_unlock(&dev->mode_config.idr_mutex); | |
477 | ||
478 | return fb; | |
479 | } | |
480 | ||
786b99ed DV |
481 | /** |
482 | * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference | |
483 | * @dev: drm device | |
484 | * @id: id of the fb object | |
485 | * | |
486 | * If successful, this grabs an additional reference to the framebuffer - | |
487 | * callers need to make sure to eventually unreference the returned framebuffer | |
c8e32cc1 | 488 | * again, using @drm_framebuffer_unreference. |
786b99ed DV |
489 | */ |
490 | struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev, | |
491 | uint32_t id) | |
492 | { | |
786b99ed DV |
493 | struct drm_framebuffer *fb; |
494 | ||
495 | mutex_lock(&dev->mode_config.fb_lock); | |
2b677e8c | 496 | fb = __drm_framebuffer_lookup(dev, id); |
83f45fc3 DV |
497 | if (fb) { |
498 | if (!kref_get_unless_zero(&fb->refcount)) | |
499 | fb = NULL; | |
500 | } | |
786b99ed DV |
501 | mutex_unlock(&dev->mode_config.fb_lock); |
502 | ||
503 | return fb; | |
504 | } | |
505 | EXPORT_SYMBOL(drm_framebuffer_lookup); | |
506 | ||
f7eff60e RC |
507 | /** |
508 | * drm_framebuffer_unreference - unref a framebuffer | |
065a50ed DV |
509 | * @fb: framebuffer to unref |
510 | * | |
511 | * This functions decrements the fb's refcount and frees it if it drops to zero. | |
f7eff60e RC |
512 | */ |
513 | void drm_framebuffer_unreference(struct drm_framebuffer *fb) | |
514 | { | |
8291272a | 515 | DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); |
f7eff60e RC |
516 | kref_put(&fb->refcount, drm_framebuffer_free); |
517 | } | |
518 | EXPORT_SYMBOL(drm_framebuffer_unreference); | |
519 | ||
520 | /** | |
521 | * drm_framebuffer_reference - incr the fb refcnt | |
065a50ed | 522 | * @fb: framebuffer |
c8e32cc1 DV |
523 | * |
524 | * This functions increments the fb's refcount. | |
f7eff60e RC |
525 | */ |
526 | void drm_framebuffer_reference(struct drm_framebuffer *fb) | |
527 | { | |
8291272a | 528 | DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); |
f7eff60e RC |
529 | kref_get(&fb->refcount); |
530 | } | |
531 | EXPORT_SYMBOL(drm_framebuffer_reference); | |
532 | ||
2b677e8c DV |
533 | static void drm_framebuffer_free_bug(struct kref *kref) |
534 | { | |
535 | BUG(); | |
536 | } | |
537 | ||
6c2a7532 DV |
538 | static void __drm_framebuffer_unreference(struct drm_framebuffer *fb) |
539 | { | |
8291272a | 540 | DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); |
6c2a7532 DV |
541 | kref_put(&fb->refcount, drm_framebuffer_free_bug); |
542 | } | |
543 | ||
36206361 DV |
544 | /** |
545 | * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr | |
546 | * @fb: fb to unregister | |
547 | * | |
548 | * Drivers need to call this when cleaning up driver-private framebuffers, e.g. | |
549 | * those used for fbdev. Note that the caller must hold a reference of it's own, | |
550 | * i.e. the object may not be destroyed through this call (since it'll lead to a | |
551 | * locking inversion). | |
552 | */ | |
553 | void drm_framebuffer_unregister_private(struct drm_framebuffer *fb) | |
554 | { | |
2b677e8c DV |
555 | struct drm_device *dev = fb->dev; |
556 | ||
557 | mutex_lock(&dev->mode_config.fb_lock); | |
558 | /* Mark fb as reaped and drop idr ref. */ | |
559 | __drm_framebuffer_unregister(dev, fb); | |
560 | mutex_unlock(&dev->mode_config.fb_lock); | |
36206361 DV |
561 | } |
562 | EXPORT_SYMBOL(drm_framebuffer_unregister_private); | |
563 | ||
f453ba04 DA |
564 | /** |
565 | * drm_framebuffer_cleanup - remove a framebuffer object | |
566 | * @fb: framebuffer to remove | |
567 | * | |
c8e32cc1 DV |
568 | * Cleanup framebuffer. This function is intended to be used from the drivers |
569 | * ->destroy callback. It can also be used to clean up driver private | |
570 | * framebuffers embedded into a larger structure. | |
36206361 DV |
571 | * |
572 | * Note that this function does not remove the fb from active usuage - if it is | |
573 | * still used anywhere, hilarity can ensue since userspace could call getfb on | |
574 | * the id and get back -EINVAL. Obviously no concern at driver unload time. | |
575 | * | |
576 | * Also, the framebuffer will not be removed from the lookup idr - for | |
577 | * user-created framebuffers this will happen in in the rmfb ioctl. For | |
578 | * driver-private objects (e.g. for fbdev) drivers need to explicitly call | |
579 | * drm_framebuffer_unregister_private. | |
f453ba04 DA |
580 | */ |
581 | void drm_framebuffer_cleanup(struct drm_framebuffer *fb) | |
f7eff60e RC |
582 | { |
583 | struct drm_device *dev = fb->dev; | |
8faf6b18 | 584 | |
4b096ac1 | 585 | mutex_lock(&dev->mode_config.fb_lock); |
f7eff60e RC |
586 | list_del(&fb->head); |
587 | dev->mode_config.num_fb--; | |
4b096ac1 | 588 | mutex_unlock(&dev->mode_config.fb_lock); |
f7eff60e RC |
589 | } |
590 | EXPORT_SYMBOL(drm_framebuffer_cleanup); | |
591 | ||
592 | /** | |
593 | * drm_framebuffer_remove - remove and unreference a framebuffer object | |
594 | * @fb: framebuffer to remove | |
595 | * | |
f7eff60e | 596 | * Scans all the CRTCs and planes in @dev's mode_config. If they're |
36206361 | 597 | * using @fb, removes it, setting it to NULL. Then drops the reference to the |
b62584e3 DV |
598 | * passed-in framebuffer. Might take the modeset locks. |
599 | * | |
600 | * Note that this function optimizes the cleanup away if the caller holds the | |
601 | * last reference to the framebuffer. It is also guaranteed to not take the | |
602 | * modeset locks in this case. | |
f7eff60e RC |
603 | */ |
604 | void drm_framebuffer_remove(struct drm_framebuffer *fb) | |
f453ba04 DA |
605 | { |
606 | struct drm_device *dev = fb->dev; | |
607 | struct drm_crtc *crtc; | |
8cf5c917 | 608 | struct drm_plane *plane; |
5ef5f72f DA |
609 | struct drm_mode_set set; |
610 | int ret; | |
f453ba04 | 611 | |
4b096ac1 | 612 | WARN_ON(!list_empty(&fb->filp_head)); |
8faf6b18 | 613 | |
b62584e3 DV |
614 | /* |
615 | * drm ABI mandates that we remove any deleted framebuffers from active | |
616 | * useage. But since most sane clients only remove framebuffers they no | |
617 | * longer need, try to optimize this away. | |
618 | * | |
619 | * Since we're holding a reference ourselves, observing a refcount of 1 | |
620 | * means that we're the last holder and can skip it. Also, the refcount | |
621 | * can never increase from 1 again, so we don't need any barriers or | |
622 | * locks. | |
623 | * | |
624 | * Note that userspace could try to race with use and instate a new | |
625 | * usage _after_ we've cleared all current ones. End result will be an | |
626 | * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot | |
627 | * in this manner. | |
628 | */ | |
629 | if (atomic_read(&fb->refcount.refcount) > 1) { | |
630 | drm_modeset_lock_all(dev); | |
631 | /* remove from any CRTC */ | |
632 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
f4510a27 | 633 | if (crtc->primary->fb == fb) { |
b62584e3 DV |
634 | /* should turn off the crtc */ |
635 | memset(&set, 0, sizeof(struct drm_mode_set)); | |
636 | set.crtc = crtc; | |
637 | set.fb = NULL; | |
638 | ret = drm_mode_set_config_internal(&set); | |
639 | if (ret) | |
640 | DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc); | |
641 | } | |
5ef5f72f | 642 | } |
f453ba04 | 643 | |
b62584e3 | 644 | list_for_each_entry(plane, &dev->mode_config.plane_list, head) { |
9125e618 VS |
645 | if (plane->fb == fb) |
646 | drm_plane_force_disable(plane); | |
8cf5c917 | 647 | } |
b62584e3 | 648 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
649 | } |
650 | ||
f7eff60e | 651 | drm_framebuffer_unreference(fb); |
f453ba04 | 652 | } |
f7eff60e | 653 | EXPORT_SYMBOL(drm_framebuffer_remove); |
f453ba04 | 654 | |
51fd371b RC |
655 | DEFINE_WW_CLASS(crtc_ww_class); |
656 | ||
f453ba04 | 657 | /** |
e13161af MR |
658 | * drm_crtc_init_with_planes - Initialise a new CRTC object with |
659 | * specified primary and cursor planes. | |
f453ba04 DA |
660 | * @dev: DRM device |
661 | * @crtc: CRTC object to init | |
e13161af MR |
662 | * @primary: Primary plane for CRTC |
663 | * @cursor: Cursor plane for CRTC | |
f453ba04 DA |
664 | * @funcs: callbacks for the new CRTC |
665 | * | |
ad6f5c34 | 666 | * Inits a new object created as base part of a driver crtc object. |
6bfc56aa | 667 | * |
c8e32cc1 | 668 | * Returns: |
6bfc56aa | 669 | * Zero on success, error code on failure. |
f453ba04 | 670 | */ |
e13161af MR |
671 | int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, |
672 | struct drm_plane *primary, | |
fc1d3e44 | 673 | struct drm_plane *cursor, |
e13161af | 674 | const struct drm_crtc_funcs *funcs) |
f453ba04 | 675 | { |
51fd371b | 676 | struct drm_mode_config *config = &dev->mode_config; |
6bfc56aa VS |
677 | int ret; |
678 | ||
f453ba04 DA |
679 | crtc->dev = dev; |
680 | crtc->funcs = funcs; | |
7c80e128 | 681 | crtc->invert_dimensions = false; |
f453ba04 | 682 | |
51fd371b | 683 | drm_modeset_lock_init(&crtc->mutex); |
6bfc56aa VS |
684 | ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); |
685 | if (ret) | |
686 | goto out; | |
f453ba04 | 687 | |
bffd9de0 PZ |
688 | crtc->base.properties = &crtc->properties; |
689 | ||
51fd371b RC |
690 | list_add_tail(&crtc->head, &config->crtc_list); |
691 | config->num_crtc++; | |
6bfc56aa | 692 | |
e13161af | 693 | crtc->primary = primary; |
fc1d3e44 | 694 | crtc->cursor = cursor; |
e13161af MR |
695 | if (primary) |
696 | primary->possible_crtcs = 1 << drm_crtc_index(crtc); | |
fc1d3e44 MR |
697 | if (cursor) |
698 | cursor->possible_crtcs = 1 << drm_crtc_index(crtc); | |
e13161af | 699 | |
6bfc56aa | 700 | out: |
6bfc56aa VS |
701 | |
702 | return ret; | |
f453ba04 | 703 | } |
e13161af | 704 | EXPORT_SYMBOL(drm_crtc_init_with_planes); |
f453ba04 DA |
705 | |
706 | /** | |
ad6f5c34 | 707 | * drm_crtc_cleanup - Clean up the core crtc usage |
f453ba04 DA |
708 | * @crtc: CRTC to cleanup |
709 | * | |
ad6f5c34 VS |
710 | * This function cleans up @crtc and removes it from the DRM mode setting |
711 | * core. Note that the function does *not* free the crtc structure itself, | |
712 | * this is the responsibility of the caller. | |
f453ba04 DA |
713 | */ |
714 | void drm_crtc_cleanup(struct drm_crtc *crtc) | |
715 | { | |
716 | struct drm_device *dev = crtc->dev; | |
717 | ||
9e1c156f SK |
718 | kfree(crtc->gamma_store); |
719 | crtc->gamma_store = NULL; | |
f453ba04 | 720 | |
51fd371b RC |
721 | drm_modeset_lock_fini(&crtc->mutex); |
722 | ||
f453ba04 DA |
723 | drm_mode_object_put(dev, &crtc->base); |
724 | list_del(&crtc->head); | |
725 | dev->mode_config.num_crtc--; | |
726 | } | |
727 | EXPORT_SYMBOL(drm_crtc_cleanup); | |
728 | ||
db5f7a6e RK |
729 | /** |
730 | * drm_crtc_index - find the index of a registered CRTC | |
731 | * @crtc: CRTC to find index for | |
732 | * | |
733 | * Given a registered CRTC, return the index of that CRTC within a DRM | |
734 | * device's list of CRTCs. | |
735 | */ | |
736 | unsigned int drm_crtc_index(struct drm_crtc *crtc) | |
737 | { | |
738 | unsigned int index = 0; | |
739 | struct drm_crtc *tmp; | |
740 | ||
741 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) { | |
742 | if (tmp == crtc) | |
743 | return index; | |
744 | ||
745 | index++; | |
746 | } | |
747 | ||
748 | BUG(); | |
749 | } | |
750 | EXPORT_SYMBOL(drm_crtc_index); | |
751 | ||
86f422d5 | 752 | /* |
f453ba04 DA |
753 | * drm_mode_remove - remove and free a mode |
754 | * @connector: connector list to modify | |
755 | * @mode: mode to remove | |
756 | * | |
f453ba04 DA |
757 | * Remove @mode from @connector's mode list, then free it. |
758 | */ | |
86f422d5 LD |
759 | static void drm_mode_remove(struct drm_connector *connector, |
760 | struct drm_display_mode *mode) | |
f453ba04 DA |
761 | { |
762 | list_del(&mode->head); | |
554f1d78 | 763 | drm_mode_destroy(connector->dev, mode); |
f453ba04 | 764 | } |
f453ba04 | 765 | |
eaf99c74 CW |
766 | /** |
767 | * drm_connector_get_cmdline_mode - reads the user's cmdline mode | |
768 | * @connector: connector to quwery | |
eaf99c74 CW |
769 | * |
770 | * The kernel supports per-connector configration of its consoles through | |
771 | * use of the video= parameter. This function parses that option and | |
772 | * extracts the user's specified mode (or enable/disable status) for a | |
773 | * particular connector. This is typically only used during the early fbdev | |
774 | * setup. | |
775 | */ | |
776 | static void drm_connector_get_cmdline_mode(struct drm_connector *connector) | |
777 | { | |
778 | struct drm_cmdline_mode *mode = &connector->cmdline_mode; | |
779 | char *option = NULL; | |
780 | ||
781 | if (fb_get_options(connector->name, &option)) | |
782 | return; | |
783 | ||
784 | if (!drm_mode_parse_command_line_for_connector(option, | |
785 | connector, | |
786 | mode)) | |
787 | return; | |
788 | ||
789 | if (mode->force) { | |
790 | const char *s; | |
791 | ||
792 | switch (mode->force) { | |
793 | case DRM_FORCE_OFF: | |
794 | s = "OFF"; | |
795 | break; | |
796 | case DRM_FORCE_ON_DIGITAL: | |
797 | s = "ON - dig"; | |
798 | break; | |
799 | default: | |
800 | case DRM_FORCE_ON: | |
801 | s = "ON"; | |
802 | break; | |
803 | } | |
804 | ||
805 | DRM_INFO("forcing %s connector %s\n", connector->name, s); | |
806 | connector->force = mode->force; | |
807 | } | |
808 | ||
809 | DRM_DEBUG_KMS("cmdline mode for connector %s %dx%d@%dHz%s%s%s\n", | |
810 | connector->name, | |
811 | mode->xres, mode->yres, | |
812 | mode->refresh_specified ? mode->refresh : 60, | |
813 | mode->rb ? " reduced blanking" : "", | |
814 | mode->margins ? " with margins" : "", | |
815 | mode->interlace ? " interlaced" : ""); | |
816 | } | |
817 | ||
f453ba04 DA |
818 | /** |
819 | * drm_connector_init - Init a preallocated connector | |
820 | * @dev: DRM device | |
821 | * @connector: the connector to init | |
822 | * @funcs: callbacks for this connector | |
065a50ed | 823 | * @connector_type: user visible type of the connector |
f453ba04 | 824 | * |
f453ba04 DA |
825 | * Initialises a preallocated connector. Connectors should be |
826 | * subclassed as part of driver connector objects. | |
6bfc56aa | 827 | * |
c8e32cc1 | 828 | * Returns: |
6bfc56aa | 829 | * Zero on success, error code on failure. |
f453ba04 | 830 | */ |
6bfc56aa VS |
831 | int drm_connector_init(struct drm_device *dev, |
832 | struct drm_connector *connector, | |
833 | const struct drm_connector_funcs *funcs, | |
834 | int connector_type) | |
f453ba04 | 835 | { |
6bfc56aa | 836 | int ret; |
b21e3afe IM |
837 | struct ida *connector_ida = |
838 | &drm_connector_enum_list[connector_type].ida; | |
6bfc56aa | 839 | |
84849903 | 840 | drm_modeset_lock_all(dev); |
f453ba04 | 841 | |
2ee39452 | 842 | ret = drm_mode_object_get_reg(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR, false); |
6bfc56aa | 843 | if (ret) |
2abdd313 | 844 | goto out_unlock; |
6bfc56aa | 845 | |
7e3bdf4a | 846 | connector->base.properties = &connector->properties; |
f453ba04 DA |
847 | connector->dev = dev; |
848 | connector->funcs = funcs; | |
f453ba04 DA |
849 | connector->connector_type = connector_type; |
850 | connector->connector_type_id = | |
b21e3afe IM |
851 | ida_simple_get(connector_ida, 1, 0, GFP_KERNEL); |
852 | if (connector->connector_type_id < 0) { | |
853 | ret = connector->connector_type_id; | |
2abdd313 | 854 | goto out_put; |
b21e3afe | 855 | } |
2abdd313 JN |
856 | connector->name = |
857 | kasprintf(GFP_KERNEL, "%s-%d", | |
858 | drm_connector_enum_list[connector_type].name, | |
859 | connector->connector_type_id); | |
860 | if (!connector->name) { | |
861 | ret = -ENOMEM; | |
862 | goto out_put; | |
863 | } | |
864 | ||
f453ba04 DA |
865 | INIT_LIST_HEAD(&connector->probed_modes); |
866 | INIT_LIST_HEAD(&connector->modes); | |
867 | connector->edid_blob_ptr = NULL; | |
5e2cb2f6 | 868 | connector->status = connector_status_unknown; |
f453ba04 | 869 | |
eaf99c74 CW |
870 | drm_connector_get_cmdline_mode(connector); |
871 | ||
f453ba04 DA |
872 | list_add_tail(&connector->head, &dev->mode_config.connector_list); |
873 | dev->mode_config.num_connector++; | |
874 | ||
a7331e5c | 875 | if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL) |
58495563 | 876 | drm_object_attach_property(&connector->base, |
a7331e5c TH |
877 | dev->mode_config.edid_property, |
878 | 0); | |
f453ba04 | 879 | |
58495563 | 880 | drm_object_attach_property(&connector->base, |
f453ba04 DA |
881 | dev->mode_config.dpms_property, 0); |
882 | ||
30f65707 TW |
883 | connector->debugfs_entry = NULL; |
884 | ||
2abdd313 JN |
885 | out_put: |
886 | if (ret) | |
887 | drm_mode_object_put(dev, &connector->base); | |
888 | ||
889 | out_unlock: | |
84849903 | 890 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
891 | |
892 | return ret; | |
f453ba04 DA |
893 | } |
894 | EXPORT_SYMBOL(drm_connector_init); | |
895 | ||
896 | /** | |
897 | * drm_connector_cleanup - cleans up an initialised connector | |
898 | * @connector: connector to cleanup | |
899 | * | |
f453ba04 DA |
900 | * Cleans up the connector but doesn't free the object. |
901 | */ | |
902 | void drm_connector_cleanup(struct drm_connector *connector) | |
903 | { | |
904 | struct drm_device *dev = connector->dev; | |
905 | struct drm_display_mode *mode, *t; | |
906 | ||
907 | list_for_each_entry_safe(mode, t, &connector->probed_modes, head) | |
908 | drm_mode_remove(connector, mode); | |
909 | ||
910 | list_for_each_entry_safe(mode, t, &connector->modes, head) | |
911 | drm_mode_remove(connector, mode); | |
912 | ||
b21e3afe IM |
913 | ida_remove(&drm_connector_enum_list[connector->connector_type].ida, |
914 | connector->connector_type_id); | |
915 | ||
f453ba04 | 916 | drm_mode_object_put(dev, &connector->base); |
2abdd313 JN |
917 | kfree(connector->name); |
918 | connector->name = NULL; | |
f453ba04 | 919 | list_del(&connector->head); |
6380c509 | 920 | dev->mode_config.num_connector--; |
f453ba04 DA |
921 | } |
922 | EXPORT_SYMBOL(drm_connector_cleanup); | |
923 | ||
10f637bf DV |
924 | /** |
925 | * drm_connector_index - find the index of a registered connector | |
926 | * @connector: connector to find index for | |
927 | * | |
928 | * Given a registered connector, return the index of that connector within a DRM | |
929 | * device's list of connectors. | |
930 | */ | |
931 | unsigned int drm_connector_index(struct drm_connector *connector) | |
932 | { | |
933 | unsigned int index = 0; | |
934 | struct drm_connector *tmp; | |
935 | ||
936 | list_for_each_entry(tmp, &connector->dev->mode_config.connector_list, head) { | |
937 | if (tmp == connector) | |
938 | return index; | |
939 | ||
940 | index++; | |
941 | } | |
942 | ||
943 | BUG(); | |
944 | } | |
945 | EXPORT_SYMBOL(drm_connector_index); | |
946 | ||
34ea3d38 TW |
947 | /** |
948 | * drm_connector_register - register a connector | |
949 | * @connector: the connector to register | |
950 | * | |
951 | * Register userspace interfaces for a connector | |
952 | * | |
953 | * Returns: | |
954 | * Zero on success, error code on failure. | |
955 | */ | |
956 | int drm_connector_register(struct drm_connector *connector) | |
957 | { | |
30f65707 TW |
958 | int ret; |
959 | ||
2ee39452 DA |
960 | drm_mode_object_register(connector->dev, &connector->base); |
961 | ||
30f65707 TW |
962 | ret = drm_sysfs_connector_add(connector); |
963 | if (ret) | |
964 | return ret; | |
965 | ||
966 | ret = drm_debugfs_connector_add(connector); | |
967 | if (ret) { | |
968 | drm_sysfs_connector_remove(connector); | |
969 | return ret; | |
970 | } | |
971 | ||
972 | return 0; | |
34ea3d38 TW |
973 | } |
974 | EXPORT_SYMBOL(drm_connector_register); | |
975 | ||
976 | /** | |
977 | * drm_connector_unregister - unregister a connector | |
978 | * @connector: the connector to unregister | |
979 | * | |
980 | * Unregister userspace interfaces for a connector | |
981 | */ | |
982 | void drm_connector_unregister(struct drm_connector *connector) | |
983 | { | |
984 | drm_sysfs_connector_remove(connector); | |
30f65707 | 985 | drm_debugfs_connector_remove(connector); |
34ea3d38 TW |
986 | } |
987 | EXPORT_SYMBOL(drm_connector_unregister); | |
988 | ||
989 | ||
c8e32cc1 DV |
990 | /** |
991 | * drm_connector_unplug_all - unregister connector userspace interfaces | |
992 | * @dev: drm device | |
993 | * | |
994 | * This function unregisters all connector userspace interfaces in sysfs. Should | |
995 | * be call when the device is disconnected, e.g. from an usb driver's | |
996 | * ->disconnect callback. | |
997 | */ | |
cbc7e221 DA |
998 | void drm_connector_unplug_all(struct drm_device *dev) |
999 | { | |
1000 | struct drm_connector *connector; | |
1001 | ||
1002 | /* taking the mode config mutex ends up in a clash with sysfs */ | |
1003 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) | |
34ea3d38 | 1004 | drm_connector_unregister(connector); |
cbc7e221 DA |
1005 | |
1006 | } | |
1007 | EXPORT_SYMBOL(drm_connector_unplug_all); | |
1008 | ||
c8e32cc1 DV |
1009 | /** |
1010 | * drm_bridge_init - initialize a drm transcoder/bridge | |
1011 | * @dev: drm device | |
1012 | * @bridge: transcoder/bridge to set up | |
1013 | * @funcs: bridge function table | |
1014 | * | |
1015 | * Initialises a preallocated bridge. Bridges should be | |
1016 | * subclassed as part of driver connector objects. | |
1017 | * | |
1018 | * Returns: | |
1019 | * Zero on success, error code on failure. | |
1020 | */ | |
3b336ec4 SP |
1021 | int drm_bridge_init(struct drm_device *dev, struct drm_bridge *bridge, |
1022 | const struct drm_bridge_funcs *funcs) | |
1023 | { | |
1024 | int ret; | |
1025 | ||
1026 | drm_modeset_lock_all(dev); | |
1027 | ||
1028 | ret = drm_mode_object_get(dev, &bridge->base, DRM_MODE_OBJECT_BRIDGE); | |
1029 | if (ret) | |
1030 | goto out; | |
1031 | ||
1032 | bridge->dev = dev; | |
1033 | bridge->funcs = funcs; | |
1034 | ||
1035 | list_add_tail(&bridge->head, &dev->mode_config.bridge_list); | |
1036 | dev->mode_config.num_bridge++; | |
1037 | ||
1038 | out: | |
1039 | drm_modeset_unlock_all(dev); | |
1040 | return ret; | |
1041 | } | |
1042 | EXPORT_SYMBOL(drm_bridge_init); | |
1043 | ||
c8e32cc1 DV |
1044 | /** |
1045 | * drm_bridge_cleanup - cleans up an initialised bridge | |
1046 | * @bridge: bridge to cleanup | |
1047 | * | |
1048 | * Cleans up the bridge but doesn't free the object. | |
1049 | */ | |
3b336ec4 SP |
1050 | void drm_bridge_cleanup(struct drm_bridge *bridge) |
1051 | { | |
1052 | struct drm_device *dev = bridge->dev; | |
1053 | ||
1054 | drm_modeset_lock_all(dev); | |
1055 | drm_mode_object_put(dev, &bridge->base); | |
1056 | list_del(&bridge->head); | |
1057 | dev->mode_config.num_bridge--; | |
1058 | drm_modeset_unlock_all(dev); | |
1059 | } | |
1060 | EXPORT_SYMBOL(drm_bridge_cleanup); | |
1061 | ||
c8e32cc1 DV |
1062 | /** |
1063 | * drm_encoder_init - Init a preallocated encoder | |
1064 | * @dev: drm device | |
1065 | * @encoder: the encoder to init | |
1066 | * @funcs: callbacks for this encoder | |
1067 | * @encoder_type: user visible type of the encoder | |
1068 | * | |
1069 | * Initialises a preallocated encoder. Encoder should be | |
1070 | * subclassed as part of driver encoder objects. | |
1071 | * | |
1072 | * Returns: | |
1073 | * Zero on success, error code on failure. | |
1074 | */ | |
6bfc56aa | 1075 | int drm_encoder_init(struct drm_device *dev, |
cbc7e221 DA |
1076 | struct drm_encoder *encoder, |
1077 | const struct drm_encoder_funcs *funcs, | |
1078 | int encoder_type) | |
f453ba04 | 1079 | { |
6bfc56aa VS |
1080 | int ret; |
1081 | ||
84849903 | 1082 | drm_modeset_lock_all(dev); |
f453ba04 | 1083 | |
6bfc56aa VS |
1084 | ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); |
1085 | if (ret) | |
e5748946 | 1086 | goto out_unlock; |
f453ba04 | 1087 | |
6bfc56aa | 1088 | encoder->dev = dev; |
f453ba04 DA |
1089 | encoder->encoder_type = encoder_type; |
1090 | encoder->funcs = funcs; | |
e5748946 JN |
1091 | encoder->name = kasprintf(GFP_KERNEL, "%s-%d", |
1092 | drm_encoder_enum_list[encoder_type].name, | |
1093 | encoder->base.id); | |
1094 | if (!encoder->name) { | |
1095 | ret = -ENOMEM; | |
1096 | goto out_put; | |
1097 | } | |
f453ba04 DA |
1098 | |
1099 | list_add_tail(&encoder->head, &dev->mode_config.encoder_list); | |
1100 | dev->mode_config.num_encoder++; | |
1101 | ||
e5748946 JN |
1102 | out_put: |
1103 | if (ret) | |
1104 | drm_mode_object_put(dev, &encoder->base); | |
1105 | ||
1106 | out_unlock: | |
84849903 | 1107 | drm_modeset_unlock_all(dev); |
6bfc56aa VS |
1108 | |
1109 | return ret; | |
f453ba04 DA |
1110 | } |
1111 | EXPORT_SYMBOL(drm_encoder_init); | |
1112 | ||
c8e32cc1 DV |
1113 | /** |
1114 | * drm_encoder_cleanup - cleans up an initialised encoder | |
1115 | * @encoder: encoder to cleanup | |
1116 | * | |
1117 | * Cleans up the encoder but doesn't free the object. | |
1118 | */ | |
f453ba04 DA |
1119 | void drm_encoder_cleanup(struct drm_encoder *encoder) |
1120 | { | |
1121 | struct drm_device *dev = encoder->dev; | |
84849903 | 1122 | drm_modeset_lock_all(dev); |
f453ba04 | 1123 | drm_mode_object_put(dev, &encoder->base); |
e5748946 JN |
1124 | kfree(encoder->name); |
1125 | encoder->name = NULL; | |
f453ba04 | 1126 | list_del(&encoder->head); |
6380c509 | 1127 | dev->mode_config.num_encoder--; |
84849903 | 1128 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1129 | } |
1130 | EXPORT_SYMBOL(drm_encoder_cleanup); | |
1131 | ||
35f2c3ae | 1132 | /** |
dc415ff9 | 1133 | * drm_universal_plane_init - Initialize a new universal plane object |
35f2c3ae VS |
1134 | * @dev: DRM device |
1135 | * @plane: plane object to init | |
1136 | * @possible_crtcs: bitmask of possible CRTCs | |
1137 | * @funcs: callbacks for the new plane | |
1138 | * @formats: array of supported formats (%DRM_FORMAT_*) | |
1139 | * @format_count: number of elements in @formats | |
dc415ff9 | 1140 | * @type: type of plane (overlay, primary, cursor) |
35f2c3ae | 1141 | * |
dc415ff9 | 1142 | * Initializes a plane object of type @type. |
35f2c3ae | 1143 | * |
c8e32cc1 | 1144 | * Returns: |
35f2c3ae VS |
1145 | * Zero on success, error code on failure. |
1146 | */ | |
dc415ff9 MR |
1147 | int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane, |
1148 | unsigned long possible_crtcs, | |
1149 | const struct drm_plane_funcs *funcs, | |
1150 | const uint32_t *formats, uint32_t format_count, | |
1151 | enum drm_plane_type type) | |
8cf5c917 | 1152 | { |
6bfc56aa VS |
1153 | int ret; |
1154 | ||
84849903 | 1155 | drm_modeset_lock_all(dev); |
8cf5c917 | 1156 | |
6bfc56aa VS |
1157 | ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); |
1158 | if (ret) | |
1159 | goto out; | |
1160 | ||
4d93914a | 1161 | plane->base.properties = &plane->properties; |
8cf5c917 | 1162 | plane->dev = dev; |
8cf5c917 JB |
1163 | plane->funcs = funcs; |
1164 | plane->format_types = kmalloc(sizeof(uint32_t) * format_count, | |
1165 | GFP_KERNEL); | |
1166 | if (!plane->format_types) { | |
1167 | DRM_DEBUG_KMS("out of memory when allocating plane\n"); | |
1168 | drm_mode_object_put(dev, &plane->base); | |
6bfc56aa VS |
1169 | ret = -ENOMEM; |
1170 | goto out; | |
8cf5c917 JB |
1171 | } |
1172 | ||
308e5bcb | 1173 | memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); |
8cf5c917 JB |
1174 | plane->format_count = format_count; |
1175 | plane->possible_crtcs = possible_crtcs; | |
dc415ff9 | 1176 | plane->type = type; |
8cf5c917 | 1177 | |
dc415ff9 MR |
1178 | list_add_tail(&plane->head, &dev->mode_config.plane_list); |
1179 | dev->mode_config.num_total_plane++; | |
1180 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) | |
1181 | dev->mode_config.num_overlay_plane++; | |
8cf5c917 | 1182 | |
9922ab5a RC |
1183 | drm_object_attach_property(&plane->base, |
1184 | dev->mode_config.plane_type_property, | |
1185 | plane->type); | |
1186 | ||
6bfc56aa | 1187 | out: |
84849903 | 1188 | drm_modeset_unlock_all(dev); |
8cf5c917 | 1189 | |
6bfc56aa | 1190 | return ret; |
8cf5c917 | 1191 | } |
dc415ff9 MR |
1192 | EXPORT_SYMBOL(drm_universal_plane_init); |
1193 | ||
1194 | /** | |
1195 | * drm_plane_init - Initialize a legacy plane | |
1196 | * @dev: DRM device | |
1197 | * @plane: plane object to init | |
1198 | * @possible_crtcs: bitmask of possible CRTCs | |
1199 | * @funcs: callbacks for the new plane | |
1200 | * @formats: array of supported formats (%DRM_FORMAT_*) | |
1201 | * @format_count: number of elements in @formats | |
1202 | * @is_primary: plane type (primary vs overlay) | |
1203 | * | |
1204 | * Legacy API to initialize a DRM plane. | |
1205 | * | |
1206 | * New drivers should call drm_universal_plane_init() instead. | |
1207 | * | |
1208 | * Returns: | |
1209 | * Zero on success, error code on failure. | |
1210 | */ | |
1211 | int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, | |
1212 | unsigned long possible_crtcs, | |
1213 | const struct drm_plane_funcs *funcs, | |
1214 | const uint32_t *formats, uint32_t format_count, | |
1215 | bool is_primary) | |
1216 | { | |
1217 | enum drm_plane_type type; | |
1218 | ||
1219 | type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY; | |
1220 | return drm_universal_plane_init(dev, plane, possible_crtcs, funcs, | |
1221 | formats, format_count, type); | |
1222 | } | |
8cf5c917 JB |
1223 | EXPORT_SYMBOL(drm_plane_init); |
1224 | ||
35f2c3ae VS |
1225 | /** |
1226 | * drm_plane_cleanup - Clean up the core plane usage | |
1227 | * @plane: plane to cleanup | |
1228 | * | |
1229 | * This function cleans up @plane and removes it from the DRM mode setting | |
1230 | * core. Note that the function does *not* free the plane structure itself, | |
1231 | * this is the responsibility of the caller. | |
1232 | */ | |
8cf5c917 JB |
1233 | void drm_plane_cleanup(struct drm_plane *plane) |
1234 | { | |
1235 | struct drm_device *dev = plane->dev; | |
1236 | ||
84849903 | 1237 | drm_modeset_lock_all(dev); |
8cf5c917 JB |
1238 | kfree(plane->format_types); |
1239 | drm_mode_object_put(dev, &plane->base); | |
dc415ff9 MR |
1240 | |
1241 | BUG_ON(list_empty(&plane->head)); | |
1242 | ||
1243 | list_del(&plane->head); | |
1244 | dev->mode_config.num_total_plane--; | |
1245 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) | |
1246 | dev->mode_config.num_overlay_plane--; | |
84849903 | 1247 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
1248 | } |
1249 | EXPORT_SYMBOL(drm_plane_cleanup); | |
1250 | ||
10f637bf DV |
1251 | /** |
1252 | * drm_plane_index - find the index of a registered plane | |
1253 | * @plane: plane to find index for | |
1254 | * | |
1255 | * Given a registered plane, return the index of that CRTC within a DRM | |
1256 | * device's list of planes. | |
1257 | */ | |
1258 | unsigned int drm_plane_index(struct drm_plane *plane) | |
1259 | { | |
1260 | unsigned int index = 0; | |
1261 | struct drm_plane *tmp; | |
1262 | ||
1263 | list_for_each_entry(tmp, &plane->dev->mode_config.plane_list, head) { | |
1264 | if (tmp == plane) | |
1265 | return index; | |
1266 | ||
1267 | index++; | |
1268 | } | |
1269 | ||
1270 | BUG(); | |
1271 | } | |
1272 | EXPORT_SYMBOL(drm_plane_index); | |
1273 | ||
35f2c3ae VS |
1274 | /** |
1275 | * drm_plane_force_disable - Forcibly disable a plane | |
1276 | * @plane: plane to disable | |
1277 | * | |
1278 | * Forces the plane to be disabled. | |
1279 | * | |
1280 | * Used when the plane's current framebuffer is destroyed, | |
1281 | * and when restoring fbdev mode. | |
1282 | */ | |
9125e618 VS |
1283 | void drm_plane_force_disable(struct drm_plane *plane) |
1284 | { | |
1285 | int ret; | |
1286 | ||
3d30a59b | 1287 | if (!plane->fb) |
9125e618 VS |
1288 | return; |
1289 | ||
3d30a59b | 1290 | plane->old_fb = plane->fb; |
9125e618 | 1291 | ret = plane->funcs->disable_plane(plane); |
731cce48 | 1292 | if (ret) { |
9125e618 | 1293 | DRM_ERROR("failed to disable plane with busy fb\n"); |
3d30a59b | 1294 | plane->old_fb = NULL; |
731cce48 DV |
1295 | return; |
1296 | } | |
9125e618 | 1297 | /* disconnect the plane from the fb and crtc: */ |
3d30a59b DV |
1298 | __drm_framebuffer_unreference(plane->old_fb); |
1299 | plane->old_fb = NULL; | |
9125e618 VS |
1300 | plane->fb = NULL; |
1301 | plane->crtc = NULL; | |
1302 | } | |
1303 | EXPORT_SYMBOL(drm_plane_force_disable); | |
1304 | ||
f453ba04 DA |
1305 | static int drm_mode_create_standard_connector_properties(struct drm_device *dev) |
1306 | { | |
1307 | struct drm_property *edid; | |
1308 | struct drm_property *dpms; | |
43aba7eb | 1309 | struct drm_property *dev_path; |
f453ba04 DA |
1310 | |
1311 | /* | |
1312 | * Standard properties (apply to all connectors) | |
1313 | */ | |
1314 | edid = drm_property_create(dev, DRM_MODE_PROP_BLOB | | |
1315 | DRM_MODE_PROP_IMMUTABLE, | |
1316 | "EDID", 0); | |
1317 | dev->mode_config.edid_property = edid; | |
1318 | ||
4a67d391 SH |
1319 | dpms = drm_property_create_enum(dev, 0, |
1320 | "DPMS", drm_dpms_enum_list, | |
1321 | ARRAY_SIZE(drm_dpms_enum_list)); | |
f453ba04 DA |
1322 | dev->mode_config.dpms_property = dpms; |
1323 | ||
43aba7eb DA |
1324 | dev_path = drm_property_create(dev, |
1325 | DRM_MODE_PROP_BLOB | | |
1326 | DRM_MODE_PROP_IMMUTABLE, | |
1327 | "PATH", 0); | |
1328 | dev->mode_config.path_property = dev_path; | |
1329 | ||
f453ba04 DA |
1330 | return 0; |
1331 | } | |
1332 | ||
9922ab5a RC |
1333 | static int drm_mode_create_standard_plane_properties(struct drm_device *dev) |
1334 | { | |
1335 | struct drm_property *type; | |
1336 | ||
1337 | /* | |
1338 | * Standard properties (apply to all planes) | |
1339 | */ | |
1340 | type = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, | |
1341 | "type", drm_plane_type_enum_list, | |
1342 | ARRAY_SIZE(drm_plane_type_enum_list)); | |
1343 | dev->mode_config.plane_type_property = type; | |
1344 | ||
1345 | return 0; | |
1346 | } | |
1347 | ||
f453ba04 DA |
1348 | /** |
1349 | * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties | |
1350 | * @dev: DRM device | |
1351 | * | |
1352 | * Called by a driver the first time a DVI-I connector is made. | |
1353 | */ | |
1354 | int drm_mode_create_dvi_i_properties(struct drm_device *dev) | |
1355 | { | |
1356 | struct drm_property *dvi_i_selector; | |
1357 | struct drm_property *dvi_i_subconnector; | |
f453ba04 DA |
1358 | |
1359 | if (dev->mode_config.dvi_i_select_subconnector_property) | |
1360 | return 0; | |
1361 | ||
1362 | dvi_i_selector = | |
4a67d391 | 1363 | drm_property_create_enum(dev, 0, |
f453ba04 | 1364 | "select subconnector", |
4a67d391 | 1365 | drm_dvi_i_select_enum_list, |
f453ba04 | 1366 | ARRAY_SIZE(drm_dvi_i_select_enum_list)); |
f453ba04 DA |
1367 | dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; |
1368 | ||
4a67d391 | 1369 | dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
f453ba04 | 1370 | "subconnector", |
4a67d391 | 1371 | drm_dvi_i_subconnector_enum_list, |
f453ba04 | 1372 | ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); |
f453ba04 DA |
1373 | dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; |
1374 | ||
1375 | return 0; | |
1376 | } | |
1377 | EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); | |
1378 | ||
1379 | /** | |
1380 | * drm_create_tv_properties - create TV specific connector properties | |
1381 | * @dev: DRM device | |
1382 | * @num_modes: number of different TV formats (modes) supported | |
1383 | * @modes: array of pointers to strings containing name of each format | |
1384 | * | |
1385 | * Called by a driver's TV initialization routine, this function creates | |
1386 | * the TV specific connector properties for a given device. Caller is | |
1387 | * responsible for allocating a list of format names and passing them to | |
1388 | * this routine. | |
1389 | */ | |
1390 | int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes, | |
1391 | char *modes[]) | |
1392 | { | |
1393 | struct drm_property *tv_selector; | |
1394 | struct drm_property *tv_subconnector; | |
1395 | int i; | |
1396 | ||
1397 | if (dev->mode_config.tv_select_subconnector_property) | |
1398 | return 0; | |
1399 | ||
1400 | /* | |
1401 | * Basic connector properties | |
1402 | */ | |
4a67d391 | 1403 | tv_selector = drm_property_create_enum(dev, 0, |
f453ba04 | 1404 | "select subconnector", |
4a67d391 | 1405 | drm_tv_select_enum_list, |
f453ba04 | 1406 | ARRAY_SIZE(drm_tv_select_enum_list)); |
f453ba04 DA |
1407 | dev->mode_config.tv_select_subconnector_property = tv_selector; |
1408 | ||
1409 | tv_subconnector = | |
4a67d391 SH |
1410 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
1411 | "subconnector", | |
1412 | drm_tv_subconnector_enum_list, | |
f453ba04 | 1413 | ARRAY_SIZE(drm_tv_subconnector_enum_list)); |
f453ba04 DA |
1414 | dev->mode_config.tv_subconnector_property = tv_subconnector; |
1415 | ||
1416 | /* | |
1417 | * Other, TV specific properties: margins & TV modes. | |
1418 | */ | |
1419 | dev->mode_config.tv_left_margin_property = | |
d9bc3c02 | 1420 | drm_property_create_range(dev, 0, "left margin", 0, 100); |
f453ba04 DA |
1421 | |
1422 | dev->mode_config.tv_right_margin_property = | |
d9bc3c02 | 1423 | drm_property_create_range(dev, 0, "right margin", 0, 100); |
f453ba04 DA |
1424 | |
1425 | dev->mode_config.tv_top_margin_property = | |
d9bc3c02 | 1426 | drm_property_create_range(dev, 0, "top margin", 0, 100); |
f453ba04 DA |
1427 | |
1428 | dev->mode_config.tv_bottom_margin_property = | |
d9bc3c02 | 1429 | drm_property_create_range(dev, 0, "bottom margin", 0, 100); |
f453ba04 DA |
1430 | |
1431 | dev->mode_config.tv_mode_property = | |
1432 | drm_property_create(dev, DRM_MODE_PROP_ENUM, | |
1433 | "mode", num_modes); | |
1434 | for (i = 0; i < num_modes; i++) | |
1435 | drm_property_add_enum(dev->mode_config.tv_mode_property, i, | |
1436 | i, modes[i]); | |
1437 | ||
b6b7902e | 1438 | dev->mode_config.tv_brightness_property = |
d9bc3c02 | 1439 | drm_property_create_range(dev, 0, "brightness", 0, 100); |
b6b7902e FJ |
1440 | |
1441 | dev->mode_config.tv_contrast_property = | |
d9bc3c02 | 1442 | drm_property_create_range(dev, 0, "contrast", 0, 100); |
b6b7902e FJ |
1443 | |
1444 | dev->mode_config.tv_flicker_reduction_property = | |
d9bc3c02 | 1445 | drm_property_create_range(dev, 0, "flicker reduction", 0, 100); |
b6b7902e | 1446 | |
a75f0236 | 1447 | dev->mode_config.tv_overscan_property = |
d9bc3c02 | 1448 | drm_property_create_range(dev, 0, "overscan", 0, 100); |
a75f0236 FJ |
1449 | |
1450 | dev->mode_config.tv_saturation_property = | |
d9bc3c02 | 1451 | drm_property_create_range(dev, 0, "saturation", 0, 100); |
a75f0236 FJ |
1452 | |
1453 | dev->mode_config.tv_hue_property = | |
d9bc3c02 | 1454 | drm_property_create_range(dev, 0, "hue", 0, 100); |
a75f0236 | 1455 | |
f453ba04 DA |
1456 | return 0; |
1457 | } | |
1458 | EXPORT_SYMBOL(drm_mode_create_tv_properties); | |
1459 | ||
1460 | /** | |
1461 | * drm_mode_create_scaling_mode_property - create scaling mode property | |
1462 | * @dev: DRM device | |
1463 | * | |
1464 | * Called by a driver the first time it's needed, must be attached to desired | |
1465 | * connectors. | |
1466 | */ | |
1467 | int drm_mode_create_scaling_mode_property(struct drm_device *dev) | |
1468 | { | |
1469 | struct drm_property *scaling_mode; | |
f453ba04 DA |
1470 | |
1471 | if (dev->mode_config.scaling_mode_property) | |
1472 | return 0; | |
1473 | ||
1474 | scaling_mode = | |
4a67d391 SH |
1475 | drm_property_create_enum(dev, 0, "scaling mode", |
1476 | drm_scaling_mode_enum_list, | |
f453ba04 | 1477 | ARRAY_SIZE(drm_scaling_mode_enum_list)); |
f453ba04 DA |
1478 | |
1479 | dev->mode_config.scaling_mode_property = scaling_mode; | |
1480 | ||
1481 | return 0; | |
1482 | } | |
1483 | EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); | |
1484 | ||
ff587e45 VK |
1485 | /** |
1486 | * drm_mode_create_aspect_ratio_property - create aspect ratio property | |
1487 | * @dev: DRM device | |
1488 | * | |
1489 | * Called by a driver the first time it's needed, must be attached to desired | |
1490 | * connectors. | |
1491 | * | |
1492 | * Returns: | |
1493 | * Zero on success, errno on failure. | |
1494 | */ | |
1495 | int drm_mode_create_aspect_ratio_property(struct drm_device *dev) | |
1496 | { | |
1497 | if (dev->mode_config.aspect_ratio_property) | |
1498 | return 0; | |
1499 | ||
1500 | dev->mode_config.aspect_ratio_property = | |
1501 | drm_property_create_enum(dev, 0, "aspect ratio", | |
1502 | drm_aspect_ratio_enum_list, | |
1503 | ARRAY_SIZE(drm_aspect_ratio_enum_list)); | |
1504 | ||
1505 | if (dev->mode_config.aspect_ratio_property == NULL) | |
1506 | return -ENOMEM; | |
1507 | ||
1508 | return 0; | |
1509 | } | |
1510 | EXPORT_SYMBOL(drm_mode_create_aspect_ratio_property); | |
1511 | ||
884840aa JB |
1512 | /** |
1513 | * drm_mode_create_dirty_property - create dirty property | |
1514 | * @dev: DRM device | |
1515 | * | |
1516 | * Called by a driver the first time it's needed, must be attached to desired | |
1517 | * connectors. | |
1518 | */ | |
1519 | int drm_mode_create_dirty_info_property(struct drm_device *dev) | |
1520 | { | |
1521 | struct drm_property *dirty_info; | |
884840aa JB |
1522 | |
1523 | if (dev->mode_config.dirty_info_property) | |
1524 | return 0; | |
1525 | ||
1526 | dirty_info = | |
4a67d391 | 1527 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
884840aa | 1528 | "dirty", |
4a67d391 | 1529 | drm_dirty_info_enum_list, |
884840aa | 1530 | ARRAY_SIZE(drm_dirty_info_enum_list)); |
884840aa JB |
1531 | dev->mode_config.dirty_info_property = dirty_info; |
1532 | ||
1533 | return 0; | |
1534 | } | |
1535 | EXPORT_SYMBOL(drm_mode_create_dirty_info_property); | |
1536 | ||
ea9cbb06 | 1537 | static int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group) |
f453ba04 DA |
1538 | { |
1539 | uint32_t total_objects = 0; | |
1540 | ||
1541 | total_objects += dev->mode_config.num_crtc; | |
1542 | total_objects += dev->mode_config.num_connector; | |
1543 | total_objects += dev->mode_config.num_encoder; | |
3b336ec4 | 1544 | total_objects += dev->mode_config.num_bridge; |
f453ba04 | 1545 | |
f453ba04 DA |
1546 | group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL); |
1547 | if (!group->id_list) | |
1548 | return -ENOMEM; | |
1549 | ||
1550 | group->num_crtcs = 0; | |
1551 | group->num_connectors = 0; | |
1552 | group->num_encoders = 0; | |
3b336ec4 | 1553 | group->num_bridges = 0; |
f453ba04 DA |
1554 | return 0; |
1555 | } | |
1556 | ||
ad222799 DA |
1557 | void drm_mode_group_destroy(struct drm_mode_group *group) |
1558 | { | |
1559 | kfree(group->id_list); | |
1560 | group->id_list = NULL; | |
1561 | } | |
1562 | ||
c8e32cc1 DV |
1563 | /* |
1564 | * NOTE: Driver's shouldn't ever call drm_mode_group_init_legacy_group - it is | |
1565 | * the drm core's responsibility to set up mode control groups. | |
1566 | */ | |
f453ba04 DA |
1567 | int drm_mode_group_init_legacy_group(struct drm_device *dev, |
1568 | struct drm_mode_group *group) | |
1569 | { | |
1570 | struct drm_crtc *crtc; | |
1571 | struct drm_encoder *encoder; | |
1572 | struct drm_connector *connector; | |
3b336ec4 | 1573 | struct drm_bridge *bridge; |
f453ba04 DA |
1574 | int ret; |
1575 | ||
1576 | if ((ret = drm_mode_group_init(dev, group))) | |
1577 | return ret; | |
1578 | ||
1579 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) | |
1580 | group->id_list[group->num_crtcs++] = crtc->base.id; | |
1581 | ||
1582 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) | |
1583 | group->id_list[group->num_crtcs + group->num_encoders++] = | |
1584 | encoder->base.id; | |
1585 | ||
1586 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) | |
1587 | group->id_list[group->num_crtcs + group->num_encoders + | |
1588 | group->num_connectors++] = connector->base.id; | |
1589 | ||
3b336ec4 SP |
1590 | list_for_each_entry(bridge, &dev->mode_config.bridge_list, head) |
1591 | group->id_list[group->num_crtcs + group->num_encoders + | |
1592 | group->num_connectors + group->num_bridges++] = | |
1593 | bridge->base.id; | |
1594 | ||
f453ba04 DA |
1595 | return 0; |
1596 | } | |
9c1dfc55 | 1597 | EXPORT_SYMBOL(drm_mode_group_init_legacy_group); |
f453ba04 | 1598 | |
2390cd11 DA |
1599 | void drm_reinit_primary_mode_group(struct drm_device *dev) |
1600 | { | |
1601 | drm_modeset_lock_all(dev); | |
1602 | drm_mode_group_destroy(&dev->primary->mode_group); | |
1603 | drm_mode_group_init_legacy_group(dev, &dev->primary->mode_group); | |
1604 | drm_modeset_unlock_all(dev); | |
1605 | } | |
1606 | EXPORT_SYMBOL(drm_reinit_primary_mode_group); | |
1607 | ||
f453ba04 DA |
1608 | /** |
1609 | * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo | |
1610 | * @out: drm_mode_modeinfo struct to return to the user | |
1611 | * @in: drm_display_mode to use | |
1612 | * | |
f453ba04 DA |
1613 | * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to |
1614 | * the user. | |
1615 | */ | |
93bbf6db VS |
1616 | static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out, |
1617 | const struct drm_display_mode *in) | |
f453ba04 | 1618 | { |
e36fae38 VS |
1619 | WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX || |
1620 | in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX || | |
1621 | in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX || | |
1622 | in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX || | |
1623 | in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX, | |
1624 | "timing values too large for mode info\n"); | |
1625 | ||
f453ba04 DA |
1626 | out->clock = in->clock; |
1627 | out->hdisplay = in->hdisplay; | |
1628 | out->hsync_start = in->hsync_start; | |
1629 | out->hsync_end = in->hsync_end; | |
1630 | out->htotal = in->htotal; | |
1631 | out->hskew = in->hskew; | |
1632 | out->vdisplay = in->vdisplay; | |
1633 | out->vsync_start = in->vsync_start; | |
1634 | out->vsync_end = in->vsync_end; | |
1635 | out->vtotal = in->vtotal; | |
1636 | out->vscan = in->vscan; | |
1637 | out->vrefresh = in->vrefresh; | |
1638 | out->flags = in->flags; | |
1639 | out->type = in->type; | |
1640 | strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); | |
1641 | out->name[DRM_DISPLAY_MODE_LEN-1] = 0; | |
1642 | } | |
1643 | ||
1644 | /** | |
74afee7d | 1645 | * drm_crtc_convert_umode - convert a modeinfo into a drm_display_mode |
f453ba04 DA |
1646 | * @out: drm_display_mode to return to the user |
1647 | * @in: drm_mode_modeinfo to use | |
1648 | * | |
f453ba04 DA |
1649 | * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to |
1650 | * the caller. | |
90367bf6 | 1651 | * |
c8e32cc1 | 1652 | * Returns: |
90367bf6 | 1653 | * Zero on success, errno on failure. |
f453ba04 | 1654 | */ |
93bbf6db VS |
1655 | static int drm_crtc_convert_umode(struct drm_display_mode *out, |
1656 | const struct drm_mode_modeinfo *in) | |
f453ba04 | 1657 | { |
90367bf6 VS |
1658 | if (in->clock > INT_MAX || in->vrefresh > INT_MAX) |
1659 | return -ERANGE; | |
1660 | ||
5848ad40 DL |
1661 | if ((in->flags & DRM_MODE_FLAG_3D_MASK) > DRM_MODE_FLAG_3D_MAX) |
1662 | return -EINVAL; | |
1663 | ||
f453ba04 DA |
1664 | out->clock = in->clock; |
1665 | out->hdisplay = in->hdisplay; | |
1666 | out->hsync_start = in->hsync_start; | |
1667 | out->hsync_end = in->hsync_end; | |
1668 | out->htotal = in->htotal; | |
1669 | out->hskew = in->hskew; | |
1670 | out->vdisplay = in->vdisplay; | |
1671 | out->vsync_start = in->vsync_start; | |
1672 | out->vsync_end = in->vsync_end; | |
1673 | out->vtotal = in->vtotal; | |
1674 | out->vscan = in->vscan; | |
1675 | out->vrefresh = in->vrefresh; | |
1676 | out->flags = in->flags; | |
1677 | out->type = in->type; | |
1678 | strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); | |
1679 | out->name[DRM_DISPLAY_MODE_LEN-1] = 0; | |
90367bf6 VS |
1680 | |
1681 | return 0; | |
f453ba04 DA |
1682 | } |
1683 | ||
1684 | /** | |
1685 | * drm_mode_getresources - get graphics configuration | |
065a50ed DV |
1686 | * @dev: drm device for the ioctl |
1687 | * @data: data pointer for the ioctl | |
1688 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1689 | * |
f453ba04 DA |
1690 | * Construct a set of configuration description structures and return |
1691 | * them to the user, including CRTC, connector and framebuffer configuration. | |
1692 | * | |
1693 | * Called by the user via ioctl. | |
1694 | * | |
c8e32cc1 | 1695 | * Returns: |
f453ba04 DA |
1696 | * Zero on success, errno on failure. |
1697 | */ | |
1698 | int drm_mode_getresources(struct drm_device *dev, void *data, | |
1699 | struct drm_file *file_priv) | |
1700 | { | |
1701 | struct drm_mode_card_res *card_res = data; | |
1702 | struct list_head *lh; | |
1703 | struct drm_framebuffer *fb; | |
1704 | struct drm_connector *connector; | |
1705 | struct drm_crtc *crtc; | |
1706 | struct drm_encoder *encoder; | |
1707 | int ret = 0; | |
1708 | int connector_count = 0; | |
1709 | int crtc_count = 0; | |
1710 | int fb_count = 0; | |
1711 | int encoder_count = 0; | |
1712 | int copied = 0, i; | |
1713 | uint32_t __user *fb_id; | |
1714 | uint32_t __user *crtc_id; | |
1715 | uint32_t __user *connector_id; | |
1716 | uint32_t __user *encoder_id; | |
1717 | struct drm_mode_group *mode_group; | |
1718 | ||
fb3b06c8 DA |
1719 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1720 | return -EINVAL; | |
1721 | ||
f453ba04 | 1722 | |
4b096ac1 | 1723 | mutex_lock(&file_priv->fbs_lock); |
f453ba04 DA |
1724 | /* |
1725 | * For the non-control nodes we need to limit the list of resources | |
1726 | * by IDs in the group list for this node | |
1727 | */ | |
1728 | list_for_each(lh, &file_priv->fbs) | |
1729 | fb_count++; | |
1730 | ||
4b096ac1 DV |
1731 | /* handle this in 4 parts */ |
1732 | /* FBs */ | |
1733 | if (card_res->count_fbs >= fb_count) { | |
1734 | copied = 0; | |
1735 | fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; | |
1736 | list_for_each_entry(fb, &file_priv->fbs, filp_head) { | |
1737 | if (put_user(fb->base.id, fb_id + copied)) { | |
1738 | mutex_unlock(&file_priv->fbs_lock); | |
1739 | return -EFAULT; | |
1740 | } | |
1741 | copied++; | |
1742 | } | |
1743 | } | |
1744 | card_res->count_fbs = fb_count; | |
1745 | mutex_unlock(&file_priv->fbs_lock); | |
1746 | ||
1747 | drm_modeset_lock_all(dev); | |
43683057 | 1748 | if (!drm_is_primary_client(file_priv)) { |
f453ba04 | 1749 | |
09f308f7 | 1750 | mode_group = NULL; |
f453ba04 DA |
1751 | list_for_each(lh, &dev->mode_config.crtc_list) |
1752 | crtc_count++; | |
1753 | ||
1754 | list_for_each(lh, &dev->mode_config.connector_list) | |
1755 | connector_count++; | |
1756 | ||
1757 | list_for_each(lh, &dev->mode_config.encoder_list) | |
1758 | encoder_count++; | |
1759 | } else { | |
1760 | ||
09f308f7 | 1761 | mode_group = &file_priv->master->minor->mode_group; |
f453ba04 DA |
1762 | crtc_count = mode_group->num_crtcs; |
1763 | connector_count = mode_group->num_connectors; | |
1764 | encoder_count = mode_group->num_encoders; | |
1765 | } | |
1766 | ||
1767 | card_res->max_height = dev->mode_config.max_height; | |
1768 | card_res->min_height = dev->mode_config.min_height; | |
1769 | card_res->max_width = dev->mode_config.max_width; | |
1770 | card_res->min_width = dev->mode_config.min_width; | |
1771 | ||
f453ba04 DA |
1772 | /* CRTCs */ |
1773 | if (card_res->count_crtcs >= crtc_count) { | |
1774 | copied = 0; | |
1775 | crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; | |
09f308f7 | 1776 | if (!mode_group) { |
f453ba04 DA |
1777 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, |
1778 | head) { | |
9440106b | 1779 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
f453ba04 DA |
1780 | if (put_user(crtc->base.id, crtc_id + copied)) { |
1781 | ret = -EFAULT; | |
1782 | goto out; | |
1783 | } | |
1784 | copied++; | |
1785 | } | |
1786 | } else { | |
1787 | for (i = 0; i < mode_group->num_crtcs; i++) { | |
1788 | if (put_user(mode_group->id_list[i], | |
1789 | crtc_id + copied)) { | |
1790 | ret = -EFAULT; | |
1791 | goto out; | |
1792 | } | |
1793 | copied++; | |
1794 | } | |
1795 | } | |
1796 | } | |
1797 | card_res->count_crtcs = crtc_count; | |
1798 | ||
1799 | /* Encoders */ | |
1800 | if (card_res->count_encoders >= encoder_count) { | |
1801 | copied = 0; | |
1802 | encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; | |
09f308f7 | 1803 | if (!mode_group) { |
f453ba04 DA |
1804 | list_for_each_entry(encoder, |
1805 | &dev->mode_config.encoder_list, | |
1806 | head) { | |
9440106b | 1807 | DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id, |
83a8cfd3 | 1808 | encoder->name); |
f453ba04 DA |
1809 | if (put_user(encoder->base.id, encoder_id + |
1810 | copied)) { | |
1811 | ret = -EFAULT; | |
1812 | goto out; | |
1813 | } | |
1814 | copied++; | |
1815 | } | |
1816 | } else { | |
1817 | for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) { | |
1818 | if (put_user(mode_group->id_list[i], | |
1819 | encoder_id + copied)) { | |
1820 | ret = -EFAULT; | |
1821 | goto out; | |
1822 | } | |
1823 | copied++; | |
1824 | } | |
1825 | ||
1826 | } | |
1827 | } | |
1828 | card_res->count_encoders = encoder_count; | |
1829 | ||
1830 | /* Connectors */ | |
1831 | if (card_res->count_connectors >= connector_count) { | |
1832 | copied = 0; | |
1833 | connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; | |
09f308f7 | 1834 | if (!mode_group) { |
f453ba04 DA |
1835 | list_for_each_entry(connector, |
1836 | &dev->mode_config.connector_list, | |
1837 | head) { | |
9440106b JG |
1838 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
1839 | connector->base.id, | |
25933820 | 1840 | connector->name); |
f453ba04 DA |
1841 | if (put_user(connector->base.id, |
1842 | connector_id + copied)) { | |
1843 | ret = -EFAULT; | |
1844 | goto out; | |
1845 | } | |
1846 | copied++; | |
1847 | } | |
1848 | } else { | |
1849 | int start = mode_group->num_crtcs + | |
1850 | mode_group->num_encoders; | |
1851 | for (i = start; i < start + mode_group->num_connectors; i++) { | |
1852 | if (put_user(mode_group->id_list[i], | |
1853 | connector_id + copied)) { | |
1854 | ret = -EFAULT; | |
1855 | goto out; | |
1856 | } | |
1857 | copied++; | |
1858 | } | |
1859 | } | |
1860 | } | |
1861 | card_res->count_connectors = connector_count; | |
1862 | ||
9440106b | 1863 | DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs, |
f453ba04 DA |
1864 | card_res->count_connectors, card_res->count_encoders); |
1865 | ||
1866 | out: | |
84849903 | 1867 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1868 | return ret; |
1869 | } | |
1870 | ||
1871 | /** | |
1872 | * drm_mode_getcrtc - get CRTC configuration | |
065a50ed DV |
1873 | * @dev: drm device for the ioctl |
1874 | * @data: data pointer for the ioctl | |
1875 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1876 | * |
f453ba04 DA |
1877 | * Construct a CRTC configuration structure to return to the user. |
1878 | * | |
1879 | * Called by the user via ioctl. | |
1880 | * | |
c8e32cc1 | 1881 | * Returns: |
f453ba04 DA |
1882 | * Zero on success, errno on failure. |
1883 | */ | |
1884 | int drm_mode_getcrtc(struct drm_device *dev, | |
1885 | void *data, struct drm_file *file_priv) | |
1886 | { | |
1887 | struct drm_mode_crtc *crtc_resp = data; | |
1888 | struct drm_crtc *crtc; | |
f453ba04 DA |
1889 | int ret = 0; |
1890 | ||
fb3b06c8 DA |
1891 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1892 | return -EINVAL; | |
1893 | ||
84849903 | 1894 | drm_modeset_lock_all(dev); |
f453ba04 | 1895 | |
a2b34e22 RC |
1896 | crtc = drm_crtc_find(dev, crtc_resp->crtc_id); |
1897 | if (!crtc) { | |
f27657f2 | 1898 | ret = -ENOENT; |
f453ba04 DA |
1899 | goto out; |
1900 | } | |
f453ba04 DA |
1901 | |
1902 | crtc_resp->x = crtc->x; | |
1903 | crtc_resp->y = crtc->y; | |
1904 | crtc_resp->gamma_size = crtc->gamma_size; | |
f4510a27 MR |
1905 | if (crtc->primary->fb) |
1906 | crtc_resp->fb_id = crtc->primary->fb->base.id; | |
f453ba04 DA |
1907 | else |
1908 | crtc_resp->fb_id = 0; | |
1909 | ||
1910 | if (crtc->enabled) { | |
1911 | ||
1912 | drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode); | |
1913 | crtc_resp->mode_valid = 1; | |
1914 | ||
1915 | } else { | |
1916 | crtc_resp->mode_valid = 0; | |
1917 | } | |
1918 | ||
1919 | out: | |
84849903 | 1920 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
1921 | return ret; |
1922 | } | |
1923 | ||
61d8e328 DL |
1924 | static bool drm_mode_expose_to_userspace(const struct drm_display_mode *mode, |
1925 | const struct drm_file *file_priv) | |
1926 | { | |
1927 | /* | |
1928 | * If user-space hasn't configured the driver to expose the stereo 3D | |
1929 | * modes, don't expose them. | |
1930 | */ | |
1931 | if (!file_priv->stereo_allowed && drm_mode_is_stereo(mode)) | |
1932 | return false; | |
1933 | ||
1934 | return true; | |
1935 | } | |
1936 | ||
f453ba04 DA |
1937 | /** |
1938 | * drm_mode_getconnector - get connector configuration | |
065a50ed DV |
1939 | * @dev: drm device for the ioctl |
1940 | * @data: data pointer for the ioctl | |
1941 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 1942 | * |
f453ba04 DA |
1943 | * Construct a connector configuration structure to return to the user. |
1944 | * | |
1945 | * Called by the user via ioctl. | |
1946 | * | |
c8e32cc1 | 1947 | * Returns: |
f453ba04 DA |
1948 | * Zero on success, errno on failure. |
1949 | */ | |
1950 | int drm_mode_getconnector(struct drm_device *dev, void *data, | |
1951 | struct drm_file *file_priv) | |
1952 | { | |
1953 | struct drm_mode_get_connector *out_resp = data; | |
f453ba04 DA |
1954 | struct drm_connector *connector; |
1955 | struct drm_display_mode *mode; | |
1956 | int mode_count = 0; | |
1957 | int props_count = 0; | |
1958 | int encoders_count = 0; | |
1959 | int ret = 0; | |
1960 | int copied = 0; | |
1961 | int i; | |
1962 | struct drm_mode_modeinfo u_mode; | |
1963 | struct drm_mode_modeinfo __user *mode_ptr; | |
1964 | uint32_t __user *prop_ptr; | |
1965 | uint64_t __user *prop_values; | |
1966 | uint32_t __user *encoder_ptr; | |
1967 | ||
fb3b06c8 DA |
1968 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
1969 | return -EINVAL; | |
1970 | ||
f453ba04 DA |
1971 | memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); |
1972 | ||
9440106b | 1973 | DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id); |
f453ba04 | 1974 | |
7b24056b | 1975 | mutex_lock(&dev->mode_config.mutex); |
f453ba04 | 1976 | |
a2b34e22 RC |
1977 | connector = drm_connector_find(dev, out_resp->connector_id); |
1978 | if (!connector) { | |
f27657f2 | 1979 | ret = -ENOENT; |
f453ba04 DA |
1980 | goto out; |
1981 | } | |
f453ba04 | 1982 | |
7f88a9be | 1983 | props_count = connector->properties.count; |
f453ba04 DA |
1984 | |
1985 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { | |
1986 | if (connector->encoder_ids[i] != 0) { | |
1987 | encoders_count++; | |
1988 | } | |
1989 | } | |
1990 | ||
1991 | if (out_resp->count_modes == 0) { | |
1992 | connector->funcs->fill_modes(connector, | |
1993 | dev->mode_config.max_width, | |
1994 | dev->mode_config.max_height); | |
1995 | } | |
1996 | ||
1997 | /* delayed so we get modes regardless of pre-fill_modes state */ | |
1998 | list_for_each_entry(mode, &connector->modes, head) | |
61d8e328 DL |
1999 | if (drm_mode_expose_to_userspace(mode, file_priv)) |
2000 | mode_count++; | |
f453ba04 DA |
2001 | |
2002 | out_resp->connector_id = connector->base.id; | |
2003 | out_resp->connector_type = connector->connector_type; | |
2004 | out_resp->connector_type_id = connector->connector_type_id; | |
2005 | out_resp->mm_width = connector->display_info.width_mm; | |
2006 | out_resp->mm_height = connector->display_info.height_mm; | |
2007 | out_resp->subpixel = connector->display_info.subpixel_order; | |
2008 | out_resp->connection = connector->status; | |
832fd395 | 2009 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); |
f453ba04 DA |
2010 | if (connector->encoder) |
2011 | out_resp->encoder_id = connector->encoder->base.id; | |
2012 | else | |
2013 | out_resp->encoder_id = 0; | |
832fd395 | 2014 | drm_modeset_unlock(&dev->mode_config.connection_mutex); |
f453ba04 DA |
2015 | |
2016 | /* | |
2017 | * This ioctl is called twice, once to determine how much space is | |
2018 | * needed, and the 2nd time to fill it. | |
2019 | */ | |
2020 | if ((out_resp->count_modes >= mode_count) && mode_count) { | |
2021 | copied = 0; | |
81f6c7f8 | 2022 | mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; |
f453ba04 | 2023 | list_for_each_entry(mode, &connector->modes, head) { |
61d8e328 DL |
2024 | if (!drm_mode_expose_to_userspace(mode, file_priv)) |
2025 | continue; | |
2026 | ||
f453ba04 DA |
2027 | drm_crtc_convert_to_umode(&u_mode, mode); |
2028 | if (copy_to_user(mode_ptr + copied, | |
2029 | &u_mode, sizeof(u_mode))) { | |
2030 | ret = -EFAULT; | |
2031 | goto out; | |
2032 | } | |
2033 | copied++; | |
2034 | } | |
2035 | } | |
2036 | out_resp->count_modes = mode_count; | |
2037 | ||
2038 | if ((out_resp->count_props >= props_count) && props_count) { | |
2039 | copied = 0; | |
81f6c7f8 VS |
2040 | prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr); |
2041 | prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr); | |
7f88a9be PZ |
2042 | for (i = 0; i < connector->properties.count; i++) { |
2043 | if (put_user(connector->properties.ids[i], | |
2044 | prop_ptr + copied)) { | |
2045 | ret = -EFAULT; | |
2046 | goto out; | |
2047 | } | |
f453ba04 | 2048 | |
7f88a9be PZ |
2049 | if (put_user(connector->properties.values[i], |
2050 | prop_values + copied)) { | |
2051 | ret = -EFAULT; | |
2052 | goto out; | |
f453ba04 | 2053 | } |
7f88a9be | 2054 | copied++; |
f453ba04 DA |
2055 | } |
2056 | } | |
2057 | out_resp->count_props = props_count; | |
2058 | ||
2059 | if ((out_resp->count_encoders >= encoders_count) && encoders_count) { | |
2060 | copied = 0; | |
81f6c7f8 | 2061 | encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); |
f453ba04 DA |
2062 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
2063 | if (connector->encoder_ids[i] != 0) { | |
2064 | if (put_user(connector->encoder_ids[i], | |
2065 | encoder_ptr + copied)) { | |
2066 | ret = -EFAULT; | |
2067 | goto out; | |
2068 | } | |
2069 | copied++; | |
2070 | } | |
2071 | } | |
2072 | } | |
2073 | out_resp->count_encoders = encoders_count; | |
2074 | ||
2075 | out: | |
7b24056b DV |
2076 | mutex_unlock(&dev->mode_config.mutex); |
2077 | ||
f453ba04 DA |
2078 | return ret; |
2079 | } | |
2080 | ||
c8e32cc1 DV |
2081 | /** |
2082 | * drm_mode_getencoder - get encoder configuration | |
2083 | * @dev: drm device for the ioctl | |
2084 | * @data: data pointer for the ioctl | |
2085 | * @file_priv: drm file for the ioctl call | |
2086 | * | |
2087 | * Construct a encoder configuration structure to return to the user. | |
2088 | * | |
2089 | * Called by the user via ioctl. | |
2090 | * | |
2091 | * Returns: | |
2092 | * Zero on success, errno on failure. | |
2093 | */ | |
f453ba04 DA |
2094 | int drm_mode_getencoder(struct drm_device *dev, void *data, |
2095 | struct drm_file *file_priv) | |
2096 | { | |
2097 | struct drm_mode_get_encoder *enc_resp = data; | |
f453ba04 DA |
2098 | struct drm_encoder *encoder; |
2099 | int ret = 0; | |
2100 | ||
fb3b06c8 DA |
2101 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2102 | return -EINVAL; | |
2103 | ||
84849903 | 2104 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
2105 | encoder = drm_encoder_find(dev, enc_resp->encoder_id); |
2106 | if (!encoder) { | |
f27657f2 | 2107 | ret = -ENOENT; |
f453ba04 DA |
2108 | goto out; |
2109 | } | |
f453ba04 DA |
2110 | |
2111 | if (encoder->crtc) | |
2112 | enc_resp->crtc_id = encoder->crtc->base.id; | |
2113 | else | |
2114 | enc_resp->crtc_id = 0; | |
2115 | enc_resp->encoder_type = encoder->encoder_type; | |
2116 | enc_resp->encoder_id = encoder->base.id; | |
2117 | enc_resp->possible_crtcs = encoder->possible_crtcs; | |
2118 | enc_resp->possible_clones = encoder->possible_clones; | |
2119 | ||
2120 | out: | |
84849903 | 2121 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
2122 | return ret; |
2123 | } | |
2124 | ||
8cf5c917 | 2125 | /** |
c8e32cc1 | 2126 | * drm_mode_getplane_res - enumerate all plane resources |
8cf5c917 JB |
2127 | * @dev: DRM device |
2128 | * @data: ioctl data | |
2129 | * @file_priv: DRM file info | |
2130 | * | |
c8e32cc1 DV |
2131 | * Construct a list of plane ids to return to the user. |
2132 | * | |
2133 | * Called by the user via ioctl. | |
2134 | * | |
2135 | * Returns: | |
2136 | * Zero on success, errno on failure. | |
8cf5c917 JB |
2137 | */ |
2138 | int drm_mode_getplane_res(struct drm_device *dev, void *data, | |
c8e32cc1 | 2139 | struct drm_file *file_priv) |
8cf5c917 JB |
2140 | { |
2141 | struct drm_mode_get_plane_res *plane_resp = data; | |
2142 | struct drm_mode_config *config; | |
2143 | struct drm_plane *plane; | |
2144 | uint32_t __user *plane_ptr; | |
2145 | int copied = 0, ret = 0; | |
681e7ec7 | 2146 | unsigned num_planes; |
8cf5c917 JB |
2147 | |
2148 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2149 | return -EINVAL; | |
2150 | ||
84849903 | 2151 | drm_modeset_lock_all(dev); |
8cf5c917 JB |
2152 | config = &dev->mode_config; |
2153 | ||
681e7ec7 MR |
2154 | if (file_priv->universal_planes) |
2155 | num_planes = config->num_total_plane; | |
2156 | else | |
2157 | num_planes = config->num_overlay_plane; | |
2158 | ||
8cf5c917 JB |
2159 | /* |
2160 | * This ioctl is called twice, once to determine how much space is | |
2161 | * needed, and the 2nd time to fill it. | |
2162 | */ | |
681e7ec7 MR |
2163 | if (num_planes && |
2164 | (plane_resp->count_planes >= num_planes)) { | |
81f6c7f8 | 2165 | plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; |
8cf5c917 JB |
2166 | |
2167 | list_for_each_entry(plane, &config->plane_list, head) { | |
681e7ec7 MR |
2168 | /* |
2169 | * Unless userspace set the 'universal planes' | |
2170 | * capability bit, only advertise overlays. | |
2171 | */ | |
2172 | if (plane->type != DRM_PLANE_TYPE_OVERLAY && | |
2173 | !file_priv->universal_planes) | |
e27dde3e MR |
2174 | continue; |
2175 | ||
8cf5c917 JB |
2176 | if (put_user(plane->base.id, plane_ptr + copied)) { |
2177 | ret = -EFAULT; | |
2178 | goto out; | |
2179 | } | |
2180 | copied++; | |
2181 | } | |
2182 | } | |
681e7ec7 | 2183 | plane_resp->count_planes = num_planes; |
8cf5c917 JB |
2184 | |
2185 | out: | |
84849903 | 2186 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
2187 | return ret; |
2188 | } | |
2189 | ||
2190 | /** | |
c8e32cc1 | 2191 | * drm_mode_getplane - get plane configuration |
8cf5c917 JB |
2192 | * @dev: DRM device |
2193 | * @data: ioctl data | |
2194 | * @file_priv: DRM file info | |
2195 | * | |
c8e32cc1 DV |
2196 | * Construct a plane configuration structure to return to the user. |
2197 | * | |
2198 | * Called by the user via ioctl. | |
2199 | * | |
2200 | * Returns: | |
2201 | * Zero on success, errno on failure. | |
8cf5c917 JB |
2202 | */ |
2203 | int drm_mode_getplane(struct drm_device *dev, void *data, | |
c8e32cc1 | 2204 | struct drm_file *file_priv) |
8cf5c917 JB |
2205 | { |
2206 | struct drm_mode_get_plane *plane_resp = data; | |
8cf5c917 JB |
2207 | struct drm_plane *plane; |
2208 | uint32_t __user *format_ptr; | |
2209 | int ret = 0; | |
2210 | ||
2211 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2212 | return -EINVAL; | |
2213 | ||
84849903 | 2214 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
2215 | plane = drm_plane_find(dev, plane_resp->plane_id); |
2216 | if (!plane) { | |
8cf5c917 JB |
2217 | ret = -ENOENT; |
2218 | goto out; | |
2219 | } | |
8cf5c917 JB |
2220 | |
2221 | if (plane->crtc) | |
2222 | plane_resp->crtc_id = plane->crtc->base.id; | |
2223 | else | |
2224 | plane_resp->crtc_id = 0; | |
2225 | ||
2226 | if (plane->fb) | |
2227 | plane_resp->fb_id = plane->fb->base.id; | |
2228 | else | |
2229 | plane_resp->fb_id = 0; | |
2230 | ||
2231 | plane_resp->plane_id = plane->base.id; | |
2232 | plane_resp->possible_crtcs = plane->possible_crtcs; | |
778ad903 | 2233 | plane_resp->gamma_size = 0; |
8cf5c917 JB |
2234 | |
2235 | /* | |
2236 | * This ioctl is called twice, once to determine how much space is | |
2237 | * needed, and the 2nd time to fill it. | |
2238 | */ | |
2239 | if (plane->format_count && | |
2240 | (plane_resp->count_format_types >= plane->format_count)) { | |
81f6c7f8 | 2241 | format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; |
8cf5c917 JB |
2242 | if (copy_to_user(format_ptr, |
2243 | plane->format_types, | |
2244 | sizeof(uint32_t) * plane->format_count)) { | |
2245 | ret = -EFAULT; | |
2246 | goto out; | |
2247 | } | |
2248 | } | |
2249 | plane_resp->count_format_types = plane->format_count; | |
2250 | ||
2251 | out: | |
84849903 | 2252 | drm_modeset_unlock_all(dev); |
8cf5c917 JB |
2253 | return ret; |
2254 | } | |
2255 | ||
b36552b3 MR |
2256 | /* |
2257 | * setplane_internal - setplane handler for internal callers | |
8cf5c917 | 2258 | * |
b36552b3 MR |
2259 | * Note that we assume an extra reference has already been taken on fb. If the |
2260 | * update fails, this reference will be dropped before return; if it succeeds, | |
2261 | * the previous framebuffer (if any) will be unreferenced instead. | |
c8e32cc1 | 2262 | * |
b36552b3 | 2263 | * src_{x,y,w,h} are provided in 16.16 fixed point format |
8cf5c917 | 2264 | */ |
f2b50c11 DV |
2265 | static int __setplane_internal(struct drm_plane *plane, |
2266 | struct drm_crtc *crtc, | |
2267 | struct drm_framebuffer *fb, | |
2268 | int32_t crtc_x, int32_t crtc_y, | |
2269 | uint32_t crtc_w, uint32_t crtc_h, | |
2270 | /* src_{x,y,w,h} values are 16.16 fixed point */ | |
2271 | uint32_t src_x, uint32_t src_y, | |
2272 | uint32_t src_w, uint32_t src_h) | |
8cf5c917 | 2273 | { |
8cf5c917 | 2274 | int ret = 0; |
42ef8789 | 2275 | unsigned int fb_width, fb_height; |
62443be6 | 2276 | int i; |
8cf5c917 | 2277 | |
8cf5c917 | 2278 | /* No fb means shut it down */ |
b36552b3 | 2279 | if (!fb) { |
3d30a59b | 2280 | plane->old_fb = plane->fb; |
731cce48 DV |
2281 | ret = plane->funcs->disable_plane(plane); |
2282 | if (!ret) { | |
2283 | plane->crtc = NULL; | |
2284 | plane->fb = NULL; | |
2285 | } else { | |
3d30a59b | 2286 | plane->old_fb = NULL; |
731cce48 | 2287 | } |
8cf5c917 JB |
2288 | goto out; |
2289 | } | |
2290 | ||
7f994f3f MR |
2291 | /* Check whether this plane is usable on this CRTC */ |
2292 | if (!(plane->possible_crtcs & drm_crtc_mask(crtc))) { | |
2293 | DRM_DEBUG_KMS("Invalid crtc for plane\n"); | |
2294 | ret = -EINVAL; | |
2295 | goto out; | |
2296 | } | |
2297 | ||
62443be6 VS |
2298 | /* Check whether this plane supports the fb pixel format. */ |
2299 | for (i = 0; i < plane->format_count; i++) | |
2300 | if (fb->pixel_format == plane->format_types[i]) | |
2301 | break; | |
2302 | if (i == plane->format_count) { | |
6ba6d03e VS |
2303 | DRM_DEBUG_KMS("Invalid pixel format %s\n", |
2304 | drm_get_format_name(fb->pixel_format)); | |
62443be6 VS |
2305 | ret = -EINVAL; |
2306 | goto out; | |
2307 | } | |
2308 | ||
42ef8789 VS |
2309 | fb_width = fb->width << 16; |
2310 | fb_height = fb->height << 16; | |
2311 | ||
2312 | /* Make sure source coordinates are inside the fb. */ | |
b36552b3 MR |
2313 | if (src_w > fb_width || |
2314 | src_x > fb_width - src_w || | |
2315 | src_h > fb_height || | |
2316 | src_y > fb_height - src_h) { | |
42ef8789 VS |
2317 | DRM_DEBUG_KMS("Invalid source coordinates " |
2318 | "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", | |
b36552b3 MR |
2319 | src_w >> 16, ((src_w & 0xffff) * 15625) >> 10, |
2320 | src_h >> 16, ((src_h & 0xffff) * 15625) >> 10, | |
2321 | src_x >> 16, ((src_x & 0xffff) * 15625) >> 10, | |
2322 | src_y >> 16, ((src_y & 0xffff) * 15625) >> 10); | |
42ef8789 VS |
2323 | ret = -ENOSPC; |
2324 | goto out; | |
2325 | } | |
2326 | ||
3d30a59b | 2327 | plane->old_fb = plane->fb; |
8cf5c917 | 2328 | ret = plane->funcs->update_plane(plane, crtc, fb, |
b36552b3 MR |
2329 | crtc_x, crtc_y, crtc_w, crtc_h, |
2330 | src_x, src_y, src_w, src_h); | |
8cf5c917 JB |
2331 | if (!ret) { |
2332 | plane->crtc = crtc; | |
2333 | plane->fb = fb; | |
35f8badc | 2334 | fb = NULL; |
0fe27f06 | 2335 | } else { |
3d30a59b | 2336 | plane->old_fb = NULL; |
8cf5c917 JB |
2337 | } |
2338 | ||
2339 | out: | |
6c2a7532 DV |
2340 | if (fb) |
2341 | drm_framebuffer_unreference(fb); | |
3d30a59b DV |
2342 | if (plane->old_fb) |
2343 | drm_framebuffer_unreference(plane->old_fb); | |
2344 | plane->old_fb = NULL; | |
8cf5c917 JB |
2345 | |
2346 | return ret; | |
f2b50c11 | 2347 | } |
b36552b3 | 2348 | |
f2b50c11 DV |
2349 | static int setplane_internal(struct drm_plane *plane, |
2350 | struct drm_crtc *crtc, | |
2351 | struct drm_framebuffer *fb, | |
2352 | int32_t crtc_x, int32_t crtc_y, | |
2353 | uint32_t crtc_w, uint32_t crtc_h, | |
2354 | /* src_{x,y,w,h} values are 16.16 fixed point */ | |
2355 | uint32_t src_x, uint32_t src_y, | |
2356 | uint32_t src_w, uint32_t src_h) | |
2357 | { | |
2358 | int ret; | |
2359 | ||
2360 | drm_modeset_lock_all(plane->dev); | |
2361 | ret = __setplane_internal(plane, crtc, fb, | |
2362 | crtc_x, crtc_y, crtc_w, crtc_h, | |
2363 | src_x, src_y, src_w, src_h); | |
2364 | drm_modeset_unlock_all(plane->dev); | |
2365 | ||
2366 | return ret; | |
b36552b3 MR |
2367 | } |
2368 | ||
2369 | /** | |
2370 | * drm_mode_setplane - configure a plane's configuration | |
2371 | * @dev: DRM device | |
2372 | * @data: ioctl data* | |
2373 | * @file_priv: DRM file info | |
2374 | * | |
2375 | * Set plane configuration, including placement, fb, scaling, and other factors. | |
2376 | * Or pass a NULL fb to disable (planes may be disabled without providing a | |
2377 | * valid crtc). | |
2378 | * | |
2379 | * Returns: | |
2380 | * Zero on success, errno on failure. | |
2381 | */ | |
2382 | int drm_mode_setplane(struct drm_device *dev, void *data, | |
2383 | struct drm_file *file_priv) | |
2384 | { | |
2385 | struct drm_mode_set_plane *plane_req = data; | |
2386 | struct drm_mode_object *obj; | |
2387 | struct drm_plane *plane; | |
2388 | struct drm_crtc *crtc = NULL; | |
2389 | struct drm_framebuffer *fb = NULL; | |
2390 | ||
2391 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
2392 | return -EINVAL; | |
2393 | ||
2394 | /* Give drivers some help against integer overflows */ | |
2395 | if (plane_req->crtc_w > INT_MAX || | |
2396 | plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w || | |
2397 | plane_req->crtc_h > INT_MAX || | |
2398 | plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) { | |
2399 | DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", | |
2400 | plane_req->crtc_w, plane_req->crtc_h, | |
2401 | plane_req->crtc_x, plane_req->crtc_y); | |
2402 | return -ERANGE; | |
2403 | } | |
2404 | ||
2405 | /* | |
2406 | * First, find the plane, crtc, and fb objects. If not available, | |
2407 | * we don't bother to call the driver. | |
2408 | */ | |
2409 | obj = drm_mode_object_find(dev, plane_req->plane_id, | |
2410 | DRM_MODE_OBJECT_PLANE); | |
2411 | if (!obj) { | |
2412 | DRM_DEBUG_KMS("Unknown plane ID %d\n", | |
2413 | plane_req->plane_id); | |
2414 | return -ENOENT; | |
2415 | } | |
2416 | plane = obj_to_plane(obj); | |
2417 | ||
2418 | if (plane_req->fb_id) { | |
2419 | fb = drm_framebuffer_lookup(dev, plane_req->fb_id); | |
2420 | if (!fb) { | |
2421 | DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", | |
2422 | plane_req->fb_id); | |
2423 | return -ENOENT; | |
2424 | } | |
2425 | ||
2426 | obj = drm_mode_object_find(dev, plane_req->crtc_id, | |
2427 | DRM_MODE_OBJECT_CRTC); | |
2428 | if (!obj) { | |
2429 | DRM_DEBUG_KMS("Unknown crtc ID %d\n", | |
2430 | plane_req->crtc_id); | |
2431 | return -ENOENT; | |
2432 | } | |
2433 | crtc = obj_to_crtc(obj); | |
2434 | } | |
2435 | ||
161d0dc1 MR |
2436 | /* |
2437 | * setplane_internal will take care of deref'ing either the old or new | |
2438 | * framebuffer depending on success. | |
2439 | */ | |
17cfd91f | 2440 | return setplane_internal(plane, crtc, fb, |
b36552b3 MR |
2441 | plane_req->crtc_x, plane_req->crtc_y, |
2442 | plane_req->crtc_w, plane_req->crtc_h, | |
2443 | plane_req->src_x, plane_req->src_y, | |
2444 | plane_req->src_w, plane_req->src_h); | |
8cf5c917 JB |
2445 | } |
2446 | ||
2d13b679 DV |
2447 | /** |
2448 | * drm_mode_set_config_internal - helper to call ->set_config | |
2449 | * @set: modeset config to set | |
2450 | * | |
2451 | * This is a little helper to wrap internal calls to the ->set_config driver | |
2452 | * interface. The only thing it adds is correct refcounting dance. | |
c8e32cc1 DV |
2453 | * |
2454 | * Returns: | |
2455 | * Zero on success, errno on failure. | |
2d13b679 DV |
2456 | */ |
2457 | int drm_mode_set_config_internal(struct drm_mode_set *set) | |
2458 | { | |
2459 | struct drm_crtc *crtc = set->crtc; | |
5cef29aa DV |
2460 | struct drm_framebuffer *fb; |
2461 | struct drm_crtc *tmp; | |
b0d12325 DV |
2462 | int ret; |
2463 | ||
5cef29aa DV |
2464 | /* |
2465 | * NOTE: ->set_config can also disable other crtcs (if we steal all | |
2466 | * connectors from it), hence we need to refcount the fbs across all | |
2467 | * crtcs. Atomic modeset will have saner semantics ... | |
2468 | */ | |
2469 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) | |
3d30a59b | 2470 | tmp->primary->old_fb = tmp->primary->fb; |
5cef29aa | 2471 | |
b0d12325 | 2472 | fb = set->fb; |
2d13b679 | 2473 | |
b0d12325 DV |
2474 | ret = crtc->funcs->set_config(set); |
2475 | if (ret == 0) { | |
e13161af | 2476 | crtc->primary->crtc = crtc; |
0fe27f06 | 2477 | crtc->primary->fb = fb; |
5cef29aa | 2478 | } |
cc85e121 | 2479 | |
5cef29aa | 2480 | list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) { |
f4510a27 MR |
2481 | if (tmp->primary->fb) |
2482 | drm_framebuffer_reference(tmp->primary->fb); | |
3d30a59b DV |
2483 | if (tmp->primary->old_fb) |
2484 | drm_framebuffer_unreference(tmp->primary->old_fb); | |
2485 | tmp->primary->old_fb = NULL; | |
b0d12325 DV |
2486 | } |
2487 | ||
2488 | return ret; | |
2d13b679 DV |
2489 | } |
2490 | EXPORT_SYMBOL(drm_mode_set_config_internal); | |
2491 | ||
af93629d MR |
2492 | /** |
2493 | * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the | |
2494 | * CRTC viewport | |
2495 | * @crtc: CRTC that framebuffer will be displayed on | |
2496 | * @x: x panning | |
2497 | * @y: y panning | |
2498 | * @mode: mode that framebuffer will be displayed under | |
2499 | * @fb: framebuffer to check size of | |
c11e9283 | 2500 | */ |
af93629d MR |
2501 | int drm_crtc_check_viewport(const struct drm_crtc *crtc, |
2502 | int x, int y, | |
2503 | const struct drm_display_mode *mode, | |
2504 | const struct drm_framebuffer *fb) | |
c11e9283 DL |
2505 | |
2506 | { | |
2507 | int hdisplay, vdisplay; | |
2508 | ||
2509 | hdisplay = mode->hdisplay; | |
2510 | vdisplay = mode->vdisplay; | |
2511 | ||
a0c1bbb0 DL |
2512 | if (drm_mode_is_stereo(mode)) { |
2513 | struct drm_display_mode adjusted = *mode; | |
2514 | ||
2515 | drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE); | |
2516 | hdisplay = adjusted.crtc_hdisplay; | |
2517 | vdisplay = adjusted.crtc_vdisplay; | |
2518 | } | |
2519 | ||
c11e9283 DL |
2520 | if (crtc->invert_dimensions) |
2521 | swap(hdisplay, vdisplay); | |
2522 | ||
2523 | if (hdisplay > fb->width || | |
2524 | vdisplay > fb->height || | |
2525 | x > fb->width - hdisplay || | |
2526 | y > fb->height - vdisplay) { | |
2527 | DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n", | |
2528 | fb->width, fb->height, hdisplay, vdisplay, x, y, | |
2529 | crtc->invert_dimensions ? " (inverted)" : ""); | |
2530 | return -ENOSPC; | |
2531 | } | |
2532 | ||
2533 | return 0; | |
2534 | } | |
af93629d | 2535 | EXPORT_SYMBOL(drm_crtc_check_viewport); |
c11e9283 | 2536 | |
f453ba04 DA |
2537 | /** |
2538 | * drm_mode_setcrtc - set CRTC configuration | |
065a50ed DV |
2539 | * @dev: drm device for the ioctl |
2540 | * @data: data pointer for the ioctl | |
2541 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2542 | * |
f453ba04 DA |
2543 | * Build a new CRTC configuration based on user request. |
2544 | * | |
2545 | * Called by the user via ioctl. | |
2546 | * | |
c8e32cc1 | 2547 | * Returns: |
f453ba04 DA |
2548 | * Zero on success, errno on failure. |
2549 | */ | |
2550 | int drm_mode_setcrtc(struct drm_device *dev, void *data, | |
2551 | struct drm_file *file_priv) | |
2552 | { | |
2553 | struct drm_mode_config *config = &dev->mode_config; | |
2554 | struct drm_mode_crtc *crtc_req = data; | |
6653cc8d | 2555 | struct drm_crtc *crtc; |
f453ba04 DA |
2556 | struct drm_connector **connector_set = NULL, *connector; |
2557 | struct drm_framebuffer *fb = NULL; | |
2558 | struct drm_display_mode *mode = NULL; | |
2559 | struct drm_mode_set set; | |
2560 | uint32_t __user *set_connectors_ptr; | |
4a1b0714 | 2561 | int ret; |
f453ba04 DA |
2562 | int i; |
2563 | ||
fb3b06c8 DA |
2564 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2565 | return -EINVAL; | |
2566 | ||
1d97e915 VS |
2567 | /* For some reason crtc x/y offsets are signed internally. */ |
2568 | if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX) | |
2569 | return -ERANGE; | |
2570 | ||
84849903 | 2571 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
2572 | crtc = drm_crtc_find(dev, crtc_req->crtc_id); |
2573 | if (!crtc) { | |
58367ed6 | 2574 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); |
f27657f2 | 2575 | ret = -ENOENT; |
f453ba04 DA |
2576 | goto out; |
2577 | } | |
9440106b | 2578 | DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); |
f453ba04 DA |
2579 | |
2580 | if (crtc_req->mode_valid) { | |
2581 | /* If we have a mode we need a framebuffer. */ | |
2582 | /* If we pass -1, set the mode with the currently bound fb */ | |
2583 | if (crtc_req->fb_id == -1) { | |
f4510a27 | 2584 | if (!crtc->primary->fb) { |
6653cc8d VS |
2585 | DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); |
2586 | ret = -EINVAL; | |
2587 | goto out; | |
f453ba04 | 2588 | } |
f4510a27 | 2589 | fb = crtc->primary->fb; |
b0d12325 DV |
2590 | /* Make refcounting symmetric with the lookup path. */ |
2591 | drm_framebuffer_reference(fb); | |
f453ba04 | 2592 | } else { |
786b99ed DV |
2593 | fb = drm_framebuffer_lookup(dev, crtc_req->fb_id); |
2594 | if (!fb) { | |
58367ed6 ZY |
2595 | DRM_DEBUG_KMS("Unknown FB ID%d\n", |
2596 | crtc_req->fb_id); | |
37c4e705 | 2597 | ret = -ENOENT; |
f453ba04 DA |
2598 | goto out; |
2599 | } | |
f453ba04 DA |
2600 | } |
2601 | ||
2602 | mode = drm_mode_create(dev); | |
ee34ab5b VS |
2603 | if (!mode) { |
2604 | ret = -ENOMEM; | |
2605 | goto out; | |
2606 | } | |
2607 | ||
90367bf6 VS |
2608 | ret = drm_crtc_convert_umode(mode, &crtc_req->mode); |
2609 | if (ret) { | |
2610 | DRM_DEBUG_KMS("Invalid mode\n"); | |
2611 | goto out; | |
2612 | } | |
2613 | ||
f453ba04 | 2614 | drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); |
5f61bb42 | 2615 | |
c11e9283 DL |
2616 | ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y, |
2617 | mode, fb); | |
2618 | if (ret) | |
5f61bb42 | 2619 | goto out; |
c11e9283 | 2620 | |
f453ba04 DA |
2621 | } |
2622 | ||
2623 | if (crtc_req->count_connectors == 0 && mode) { | |
58367ed6 | 2624 | DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); |
f453ba04 DA |
2625 | ret = -EINVAL; |
2626 | goto out; | |
2627 | } | |
2628 | ||
7781de74 | 2629 | if (crtc_req->count_connectors > 0 && (!mode || !fb)) { |
58367ed6 | 2630 | DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", |
f453ba04 DA |
2631 | crtc_req->count_connectors); |
2632 | ret = -EINVAL; | |
2633 | goto out; | |
2634 | } | |
2635 | ||
2636 | if (crtc_req->count_connectors > 0) { | |
2637 | u32 out_id; | |
2638 | ||
2639 | /* Avoid unbounded kernel memory allocation */ | |
2640 | if (crtc_req->count_connectors > config->num_connector) { | |
2641 | ret = -EINVAL; | |
2642 | goto out; | |
2643 | } | |
2644 | ||
2645 | connector_set = kmalloc(crtc_req->count_connectors * | |
2646 | sizeof(struct drm_connector *), | |
2647 | GFP_KERNEL); | |
2648 | if (!connector_set) { | |
2649 | ret = -ENOMEM; | |
2650 | goto out; | |
2651 | } | |
2652 | ||
2653 | for (i = 0; i < crtc_req->count_connectors; i++) { | |
81f6c7f8 | 2654 | set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; |
f453ba04 DA |
2655 | if (get_user(out_id, &set_connectors_ptr[i])) { |
2656 | ret = -EFAULT; | |
2657 | goto out; | |
2658 | } | |
2659 | ||
a2b34e22 RC |
2660 | connector = drm_connector_find(dev, out_id); |
2661 | if (!connector) { | |
58367ed6 ZY |
2662 | DRM_DEBUG_KMS("Connector id %d unknown\n", |
2663 | out_id); | |
f27657f2 | 2664 | ret = -ENOENT; |
f453ba04 DA |
2665 | goto out; |
2666 | } | |
9440106b JG |
2667 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
2668 | connector->base.id, | |
25933820 | 2669 | connector->name); |
f453ba04 DA |
2670 | |
2671 | connector_set[i] = connector; | |
2672 | } | |
2673 | } | |
2674 | ||
2675 | set.crtc = crtc; | |
2676 | set.x = crtc_req->x; | |
2677 | set.y = crtc_req->y; | |
2678 | set.mode = mode; | |
2679 | set.connectors = connector_set; | |
2680 | set.num_connectors = crtc_req->count_connectors; | |
5ef5f72f | 2681 | set.fb = fb; |
2d13b679 | 2682 | ret = drm_mode_set_config_internal(&set); |
f453ba04 DA |
2683 | |
2684 | out: | |
b0d12325 DV |
2685 | if (fb) |
2686 | drm_framebuffer_unreference(fb); | |
2687 | ||
f453ba04 | 2688 | kfree(connector_set); |
ee34ab5b | 2689 | drm_mode_destroy(dev, mode); |
84849903 | 2690 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
2691 | return ret; |
2692 | } | |
2693 | ||
161d0dc1 MR |
2694 | /** |
2695 | * drm_mode_cursor_universal - translate legacy cursor ioctl call into a | |
2696 | * universal plane handler call | |
2697 | * @crtc: crtc to update cursor for | |
2698 | * @req: data pointer for the ioctl | |
2699 | * @file_priv: drm file for the ioctl call | |
2700 | * | |
2701 | * Legacy cursor ioctl's work directly with driver buffer handles. To | |
2702 | * translate legacy ioctl calls into universal plane handler calls, we need to | |
2703 | * wrap the native buffer handle in a drm_framebuffer. | |
2704 | * | |
2705 | * Note that we assume any handle passed to the legacy ioctls was a 32-bit ARGB | |
2706 | * buffer with a pitch of 4*width; the universal plane interface should be used | |
2707 | * directly in cases where the hardware can support other buffer settings and | |
2708 | * userspace wants to make use of these capabilities. | |
2709 | * | |
2710 | * Returns: | |
2711 | * Zero on success, errno on failure. | |
2712 | */ | |
2713 | static int drm_mode_cursor_universal(struct drm_crtc *crtc, | |
2714 | struct drm_mode_cursor2 *req, | |
2715 | struct drm_file *file_priv) | |
2716 | { | |
2717 | struct drm_device *dev = crtc->dev; | |
2718 | struct drm_framebuffer *fb = NULL; | |
2719 | struct drm_mode_fb_cmd2 fbreq = { | |
2720 | .width = req->width, | |
2721 | .height = req->height, | |
2722 | .pixel_format = DRM_FORMAT_ARGB8888, | |
2723 | .pitches = { req->width * 4 }, | |
2724 | .handles = { req->handle }, | |
2725 | }; | |
2726 | int32_t crtc_x, crtc_y; | |
2727 | uint32_t crtc_w = 0, crtc_h = 0; | |
2728 | uint32_t src_w = 0, src_h = 0; | |
2729 | int ret = 0; | |
2730 | ||
2731 | BUG_ON(!crtc->cursor); | |
f2b50c11 | 2732 | WARN_ON(crtc->cursor->crtc != crtc && crtc->cursor->crtc != NULL); |
161d0dc1 MR |
2733 | |
2734 | /* | |
2735 | * Obtain fb we'll be using (either new or existing) and take an extra | |
2736 | * reference to it if fb != null. setplane will take care of dropping | |
2737 | * the reference if the plane update fails. | |
2738 | */ | |
2739 | if (req->flags & DRM_MODE_CURSOR_BO) { | |
2740 | if (req->handle) { | |
2741 | fb = add_framebuffer_internal(dev, &fbreq, file_priv); | |
2742 | if (IS_ERR(fb)) { | |
2743 | DRM_DEBUG_KMS("failed to wrap cursor buffer in drm framebuffer\n"); | |
2744 | return PTR_ERR(fb); | |
2745 | } | |
2746 | ||
2747 | drm_framebuffer_reference(fb); | |
2748 | } else { | |
2749 | fb = NULL; | |
2750 | } | |
2751 | } else { | |
161d0dc1 MR |
2752 | fb = crtc->cursor->fb; |
2753 | if (fb) | |
2754 | drm_framebuffer_reference(fb); | |
161d0dc1 MR |
2755 | } |
2756 | ||
2757 | if (req->flags & DRM_MODE_CURSOR_MOVE) { | |
2758 | crtc_x = req->x; | |
2759 | crtc_y = req->y; | |
2760 | } else { | |
2761 | crtc_x = crtc->cursor_x; | |
2762 | crtc_y = crtc->cursor_y; | |
2763 | } | |
2764 | ||
2765 | if (fb) { | |
2766 | crtc_w = fb->width; | |
2767 | crtc_h = fb->height; | |
2768 | src_w = fb->width << 16; | |
2769 | src_h = fb->height << 16; | |
2770 | } | |
2771 | ||
2772 | /* | |
2773 | * setplane_internal will take care of deref'ing either the old or new | |
2774 | * framebuffer depending on success. | |
2775 | */ | |
f2b50c11 | 2776 | ret = __setplane_internal(crtc->cursor, crtc, fb, |
161d0dc1 MR |
2777 | crtc_x, crtc_y, crtc_w, crtc_h, |
2778 | 0, 0, src_w, src_h); | |
2779 | ||
2780 | /* Update successful; save new cursor position, if necessary */ | |
2781 | if (ret == 0 && req->flags & DRM_MODE_CURSOR_MOVE) { | |
2782 | crtc->cursor_x = req->x; | |
2783 | crtc->cursor_y = req->y; | |
2784 | } | |
2785 | ||
2786 | return ret; | |
2787 | } | |
2788 | ||
4c813d4d DA |
2789 | static int drm_mode_cursor_common(struct drm_device *dev, |
2790 | struct drm_mode_cursor2 *req, | |
2791 | struct drm_file *file_priv) | |
f453ba04 | 2792 | { |
f453ba04 DA |
2793 | struct drm_crtc *crtc; |
2794 | int ret = 0; | |
2795 | ||
fb3b06c8 DA |
2796 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
2797 | return -EINVAL; | |
2798 | ||
7c4eaca4 | 2799 | if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) |
f453ba04 | 2800 | return -EINVAL; |
f453ba04 | 2801 | |
a2b34e22 RC |
2802 | crtc = drm_crtc_find(dev, req->crtc_id); |
2803 | if (!crtc) { | |
58367ed6 | 2804 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); |
f27657f2 | 2805 | return -ENOENT; |
f453ba04 | 2806 | } |
f453ba04 | 2807 | |
161d0dc1 MR |
2808 | /* |
2809 | * If this crtc has a universal cursor plane, call that plane's update | |
2810 | * handler rather than using legacy cursor handlers. | |
2811 | */ | |
d059f652 | 2812 | drm_modeset_lock_crtc(crtc); |
f2b50c11 DV |
2813 | if (crtc->cursor) { |
2814 | ret = drm_mode_cursor_universal(crtc, req, file_priv); | |
2815 | goto out; | |
2816 | } | |
2817 | ||
f453ba04 | 2818 | if (req->flags & DRM_MODE_CURSOR_BO) { |
4c813d4d | 2819 | if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) { |
f453ba04 DA |
2820 | ret = -ENXIO; |
2821 | goto out; | |
2822 | } | |
2823 | /* Turns off the cursor if handle is 0 */ | |
4c813d4d DA |
2824 | if (crtc->funcs->cursor_set2) |
2825 | ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle, | |
2826 | req->width, req->height, req->hot_x, req->hot_y); | |
2827 | else | |
2828 | ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, | |
2829 | req->width, req->height); | |
f453ba04 DA |
2830 | } |
2831 | ||
2832 | if (req->flags & DRM_MODE_CURSOR_MOVE) { | |
2833 | if (crtc->funcs->cursor_move) { | |
2834 | ret = crtc->funcs->cursor_move(crtc, req->x, req->y); | |
2835 | } else { | |
f453ba04 DA |
2836 | ret = -EFAULT; |
2837 | goto out; | |
2838 | } | |
2839 | } | |
2840 | out: | |
d059f652 | 2841 | drm_modeset_unlock_crtc(crtc); |
dac35663 | 2842 | |
f453ba04 | 2843 | return ret; |
4c813d4d DA |
2844 | |
2845 | } | |
c8e32cc1 DV |
2846 | |
2847 | ||
2848 | /** | |
2849 | * drm_mode_cursor_ioctl - set CRTC's cursor configuration | |
2850 | * @dev: drm device for the ioctl | |
2851 | * @data: data pointer for the ioctl | |
2852 | * @file_priv: drm file for the ioctl call | |
2853 | * | |
2854 | * Set the cursor configuration based on user request. | |
2855 | * | |
2856 | * Called by the user via ioctl. | |
2857 | * | |
2858 | * Returns: | |
2859 | * Zero on success, errno on failure. | |
2860 | */ | |
4c813d4d | 2861 | int drm_mode_cursor_ioctl(struct drm_device *dev, |
c8e32cc1 | 2862 | void *data, struct drm_file *file_priv) |
4c813d4d DA |
2863 | { |
2864 | struct drm_mode_cursor *req = data; | |
2865 | struct drm_mode_cursor2 new_req; | |
2866 | ||
2867 | memcpy(&new_req, req, sizeof(struct drm_mode_cursor)); | |
2868 | new_req.hot_x = new_req.hot_y = 0; | |
2869 | ||
2870 | return drm_mode_cursor_common(dev, &new_req, file_priv); | |
2871 | } | |
2872 | ||
c8e32cc1 DV |
2873 | /** |
2874 | * drm_mode_cursor2_ioctl - set CRTC's cursor configuration | |
2875 | * @dev: drm device for the ioctl | |
2876 | * @data: data pointer for the ioctl | |
2877 | * @file_priv: drm file for the ioctl call | |
2878 | * | |
2879 | * Set the cursor configuration based on user request. This implements the 2nd | |
2880 | * version of the cursor ioctl, which allows userspace to additionally specify | |
2881 | * the hotspot of the pointer. | |
2882 | * | |
2883 | * Called by the user via ioctl. | |
2884 | * | |
2885 | * Returns: | |
2886 | * Zero on success, errno on failure. | |
2887 | */ | |
4c813d4d DA |
2888 | int drm_mode_cursor2_ioctl(struct drm_device *dev, |
2889 | void *data, struct drm_file *file_priv) | |
2890 | { | |
2891 | struct drm_mode_cursor2 *req = data; | |
2892 | return drm_mode_cursor_common(dev, req, file_priv); | |
f453ba04 DA |
2893 | } |
2894 | ||
c8e32cc1 DV |
2895 | /** |
2896 | * drm_mode_legacy_fb_format - compute drm fourcc code from legacy description | |
2897 | * @bpp: bits per pixels | |
2898 | * @depth: bit depth per pixel | |
2899 | * | |
2900 | * Computes a drm fourcc pixel format code for the given @bpp/@depth values. | |
2901 | * Useful in fbdev emulation code, since that deals in those values. | |
2902 | */ | |
308e5bcb JB |
2903 | uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth) |
2904 | { | |
2905 | uint32_t fmt; | |
2906 | ||
2907 | switch (bpp) { | |
2908 | case 8: | |
d84f031b | 2909 | fmt = DRM_FORMAT_C8; |
308e5bcb JB |
2910 | break; |
2911 | case 16: | |
2912 | if (depth == 15) | |
04b3924d | 2913 | fmt = DRM_FORMAT_XRGB1555; |
308e5bcb | 2914 | else |
04b3924d | 2915 | fmt = DRM_FORMAT_RGB565; |
308e5bcb JB |
2916 | break; |
2917 | case 24: | |
04b3924d | 2918 | fmt = DRM_FORMAT_RGB888; |
308e5bcb JB |
2919 | break; |
2920 | case 32: | |
2921 | if (depth == 24) | |
04b3924d | 2922 | fmt = DRM_FORMAT_XRGB8888; |
308e5bcb | 2923 | else if (depth == 30) |
04b3924d | 2924 | fmt = DRM_FORMAT_XRGB2101010; |
308e5bcb | 2925 | else |
04b3924d | 2926 | fmt = DRM_FORMAT_ARGB8888; |
308e5bcb JB |
2927 | break; |
2928 | default: | |
04b3924d VS |
2929 | DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n"); |
2930 | fmt = DRM_FORMAT_XRGB8888; | |
308e5bcb JB |
2931 | break; |
2932 | } | |
2933 | ||
2934 | return fmt; | |
2935 | } | |
2936 | EXPORT_SYMBOL(drm_mode_legacy_fb_format); | |
2937 | ||
f453ba04 DA |
2938 | /** |
2939 | * drm_mode_addfb - add an FB to the graphics configuration | |
065a50ed DV |
2940 | * @dev: drm device for the ioctl |
2941 | * @data: data pointer for the ioctl | |
2942 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 2943 | * |
c8e32cc1 | 2944 | * Add a new FB to the specified CRTC, given a user request. This is the |
209f5527 | 2945 | * original addfb ioctl which only supported RGB formats. |
f453ba04 DA |
2946 | * |
2947 | * Called by the user via ioctl. | |
2948 | * | |
c8e32cc1 | 2949 | * Returns: |
f453ba04 DA |
2950 | * Zero on success, errno on failure. |
2951 | */ | |
2952 | int drm_mode_addfb(struct drm_device *dev, | |
2953 | void *data, struct drm_file *file_priv) | |
2954 | { | |
308e5bcb JB |
2955 | struct drm_mode_fb_cmd *or = data; |
2956 | struct drm_mode_fb_cmd2 r = {}; | |
228f2cb3 | 2957 | int ret; |
308e5bcb | 2958 | |
228f2cb3 | 2959 | /* convert to new format and call new ioctl */ |
308e5bcb JB |
2960 | r.fb_id = or->fb_id; |
2961 | r.width = or->width; | |
2962 | r.height = or->height; | |
2963 | r.pitches[0] = or->pitch; | |
2964 | r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth); | |
2965 | r.handles[0] = or->handle; | |
2966 | ||
228f2cb3 CE |
2967 | ret = drm_mode_addfb2(dev, &r, file_priv); |
2968 | if (ret) | |
2969 | return ret; | |
308e5bcb | 2970 | |
228f2cb3 | 2971 | or->fb_id = r.fb_id; |
4b096ac1 | 2972 | |
308e5bcb JB |
2973 | return ret; |
2974 | } | |
2975 | ||
cff91b62 | 2976 | static int format_check(const struct drm_mode_fb_cmd2 *r) |
935b5977 VS |
2977 | { |
2978 | uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN; | |
2979 | ||
2980 | switch (format) { | |
2981 | case DRM_FORMAT_C8: | |
2982 | case DRM_FORMAT_RGB332: | |
2983 | case DRM_FORMAT_BGR233: | |
2984 | case DRM_FORMAT_XRGB4444: | |
2985 | case DRM_FORMAT_XBGR4444: | |
2986 | case DRM_FORMAT_RGBX4444: | |
2987 | case DRM_FORMAT_BGRX4444: | |
2988 | case DRM_FORMAT_ARGB4444: | |
2989 | case DRM_FORMAT_ABGR4444: | |
2990 | case DRM_FORMAT_RGBA4444: | |
2991 | case DRM_FORMAT_BGRA4444: | |
2992 | case DRM_FORMAT_XRGB1555: | |
2993 | case DRM_FORMAT_XBGR1555: | |
2994 | case DRM_FORMAT_RGBX5551: | |
2995 | case DRM_FORMAT_BGRX5551: | |
2996 | case DRM_FORMAT_ARGB1555: | |
2997 | case DRM_FORMAT_ABGR1555: | |
2998 | case DRM_FORMAT_RGBA5551: | |
2999 | case DRM_FORMAT_BGRA5551: | |
3000 | case DRM_FORMAT_RGB565: | |
3001 | case DRM_FORMAT_BGR565: | |
3002 | case DRM_FORMAT_RGB888: | |
3003 | case DRM_FORMAT_BGR888: | |
3004 | case DRM_FORMAT_XRGB8888: | |
3005 | case DRM_FORMAT_XBGR8888: | |
3006 | case DRM_FORMAT_RGBX8888: | |
3007 | case DRM_FORMAT_BGRX8888: | |
3008 | case DRM_FORMAT_ARGB8888: | |
3009 | case DRM_FORMAT_ABGR8888: | |
3010 | case DRM_FORMAT_RGBA8888: | |
3011 | case DRM_FORMAT_BGRA8888: | |
3012 | case DRM_FORMAT_XRGB2101010: | |
3013 | case DRM_FORMAT_XBGR2101010: | |
3014 | case DRM_FORMAT_RGBX1010102: | |
3015 | case DRM_FORMAT_BGRX1010102: | |
3016 | case DRM_FORMAT_ARGB2101010: | |
3017 | case DRM_FORMAT_ABGR2101010: | |
3018 | case DRM_FORMAT_RGBA1010102: | |
3019 | case DRM_FORMAT_BGRA1010102: | |
3020 | case DRM_FORMAT_YUYV: | |
3021 | case DRM_FORMAT_YVYU: | |
3022 | case DRM_FORMAT_UYVY: | |
3023 | case DRM_FORMAT_VYUY: | |
3024 | case DRM_FORMAT_AYUV: | |
3025 | case DRM_FORMAT_NV12: | |
3026 | case DRM_FORMAT_NV21: | |
3027 | case DRM_FORMAT_NV16: | |
3028 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
3029 | case DRM_FORMAT_NV24: |
3030 | case DRM_FORMAT_NV42: | |
935b5977 VS |
3031 | case DRM_FORMAT_YUV410: |
3032 | case DRM_FORMAT_YVU410: | |
3033 | case DRM_FORMAT_YUV411: | |
3034 | case DRM_FORMAT_YVU411: | |
3035 | case DRM_FORMAT_YUV420: | |
3036 | case DRM_FORMAT_YVU420: | |
3037 | case DRM_FORMAT_YUV422: | |
3038 | case DRM_FORMAT_YVU422: | |
3039 | case DRM_FORMAT_YUV444: | |
3040 | case DRM_FORMAT_YVU444: | |
3041 | return 0; | |
3042 | default: | |
23c453a4 VS |
3043 | DRM_DEBUG_KMS("invalid pixel format %s\n", |
3044 | drm_get_format_name(r->pixel_format)); | |
935b5977 VS |
3045 | return -EINVAL; |
3046 | } | |
3047 | } | |
3048 | ||
cff91b62 | 3049 | static int framebuffer_check(const struct drm_mode_fb_cmd2 *r) |
d1b45d5f VS |
3050 | { |
3051 | int ret, hsub, vsub, num_planes, i; | |
3052 | ||
3053 | ret = format_check(r); | |
3054 | if (ret) { | |
6ba6d03e VS |
3055 | DRM_DEBUG_KMS("bad framebuffer format %s\n", |
3056 | drm_get_format_name(r->pixel_format)); | |
d1b45d5f VS |
3057 | return ret; |
3058 | } | |
3059 | ||
3060 | hsub = drm_format_horz_chroma_subsampling(r->pixel_format); | |
3061 | vsub = drm_format_vert_chroma_subsampling(r->pixel_format); | |
3062 | num_planes = drm_format_num_planes(r->pixel_format); | |
3063 | ||
3064 | if (r->width == 0 || r->width % hsub) { | |
209f5527 | 3065 | DRM_DEBUG_KMS("bad framebuffer width %u\n", r->width); |
d1b45d5f VS |
3066 | return -EINVAL; |
3067 | } | |
3068 | ||
3069 | if (r->height == 0 || r->height % vsub) { | |
1aa1b11c | 3070 | DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height); |
d1b45d5f VS |
3071 | return -EINVAL; |
3072 | } | |
3073 | ||
3074 | for (i = 0; i < num_planes; i++) { | |
3075 | unsigned int width = r->width / (i != 0 ? hsub : 1); | |
b180b5d1 VS |
3076 | unsigned int height = r->height / (i != 0 ? vsub : 1); |
3077 | unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i); | |
d1b45d5f VS |
3078 | |
3079 | if (!r->handles[i]) { | |
1aa1b11c | 3080 | DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i); |
d1b45d5f VS |
3081 | return -EINVAL; |
3082 | } | |
3083 | ||
b180b5d1 VS |
3084 | if ((uint64_t) width * cpp > UINT_MAX) |
3085 | return -ERANGE; | |
3086 | ||
3087 | if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX) | |
3088 | return -ERANGE; | |
3089 | ||
3090 | if (r->pitches[i] < width * cpp) { | |
1aa1b11c | 3091 | DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i); |
d1b45d5f VS |
3092 | return -EINVAL; |
3093 | } | |
3094 | } | |
3095 | ||
3096 | return 0; | |
3097 | } | |
3098 | ||
c394c2b0 MR |
3099 | static struct drm_framebuffer *add_framebuffer_internal(struct drm_device *dev, |
3100 | struct drm_mode_fb_cmd2 *r, | |
3101 | struct drm_file *file_priv) | |
308e5bcb | 3102 | { |
f453ba04 DA |
3103 | struct drm_mode_config *config = &dev->mode_config; |
3104 | struct drm_framebuffer *fb; | |
4a1b0714 | 3105 | int ret; |
f453ba04 | 3106 | |
e3cc3520 VS |
3107 | if (r->flags & ~DRM_MODE_FB_INTERLACED) { |
3108 | DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags); | |
c394c2b0 | 3109 | return ERR_PTR(-EINVAL); |
e3cc3520 VS |
3110 | } |
3111 | ||
f453ba04 | 3112 | if ((config->min_width > r->width) || (r->width > config->max_width)) { |
1aa1b11c | 3113 | DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n", |
8cf5c917 | 3114 | r->width, config->min_width, config->max_width); |
c394c2b0 | 3115 | return ERR_PTR(-EINVAL); |
f453ba04 DA |
3116 | } |
3117 | if ((config->min_height > r->height) || (r->height > config->max_height)) { | |
1aa1b11c | 3118 | DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n", |
8cf5c917 | 3119 | r->height, config->min_height, config->max_height); |
c394c2b0 | 3120 | return ERR_PTR(-EINVAL); |
f453ba04 DA |
3121 | } |
3122 | ||
d1b45d5f VS |
3123 | ret = framebuffer_check(r); |
3124 | if (ret) | |
c394c2b0 | 3125 | return ERR_PTR(ret); |
935b5977 | 3126 | |
f453ba04 | 3127 | fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); |
cce13ff7 | 3128 | if (IS_ERR(fb)) { |
1aa1b11c | 3129 | DRM_DEBUG_KMS("could not create framebuffer\n"); |
c394c2b0 | 3130 | return fb; |
f453ba04 DA |
3131 | } |
3132 | ||
4b096ac1 | 3133 | mutex_lock(&file_priv->fbs_lock); |
e0c8463a | 3134 | r->fb_id = fb->base.id; |
f453ba04 | 3135 | list_add(&fb->filp_head, &file_priv->fbs); |
9440106b | 3136 | DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); |
4b096ac1 | 3137 | mutex_unlock(&file_priv->fbs_lock); |
f453ba04 | 3138 | |
c394c2b0 MR |
3139 | return fb; |
3140 | } | |
4b096ac1 | 3141 | |
c394c2b0 MR |
3142 | /** |
3143 | * drm_mode_addfb2 - add an FB to the graphics configuration | |
3144 | * @dev: drm device for the ioctl | |
3145 | * @data: data pointer for the ioctl | |
3146 | * @file_priv: drm file for the ioctl call | |
3147 | * | |
3148 | * Add a new FB to the specified CRTC, given a user request with format. This is | |
3149 | * the 2nd version of the addfb ioctl, which supports multi-planar framebuffers | |
3150 | * and uses fourcc codes as pixel format specifiers. | |
3151 | * | |
3152 | * Called by the user via ioctl. | |
3153 | * | |
3154 | * Returns: | |
3155 | * Zero on success, errno on failure. | |
3156 | */ | |
3157 | int drm_mode_addfb2(struct drm_device *dev, | |
3158 | void *data, struct drm_file *file_priv) | |
3159 | { | |
3160 | struct drm_framebuffer *fb; | |
3161 | ||
3162 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
3163 | return -EINVAL; | |
3164 | ||
3165 | fb = add_framebuffer_internal(dev, data, file_priv); | |
3166 | if (IS_ERR(fb)) | |
3167 | return PTR_ERR(fb); | |
3168 | ||
3169 | return 0; | |
f453ba04 DA |
3170 | } |
3171 | ||
3172 | /** | |
3173 | * drm_mode_rmfb - remove an FB from the configuration | |
065a50ed DV |
3174 | * @dev: drm device for the ioctl |
3175 | * @data: data pointer for the ioctl | |
3176 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 3177 | * |
f453ba04 DA |
3178 | * Remove the FB specified by the user. |
3179 | * | |
3180 | * Called by the user via ioctl. | |
3181 | * | |
c8e32cc1 | 3182 | * Returns: |
f453ba04 DA |
3183 | * Zero on success, errno on failure. |
3184 | */ | |
3185 | int drm_mode_rmfb(struct drm_device *dev, | |
3186 | void *data, struct drm_file *file_priv) | |
3187 | { | |
f453ba04 DA |
3188 | struct drm_framebuffer *fb = NULL; |
3189 | struct drm_framebuffer *fbl = NULL; | |
3190 | uint32_t *id = data; | |
f453ba04 DA |
3191 | int found = 0; |
3192 | ||
fb3b06c8 DA |
3193 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3194 | return -EINVAL; | |
3195 | ||
4b096ac1 | 3196 | mutex_lock(&file_priv->fbs_lock); |
2b677e8c DV |
3197 | mutex_lock(&dev->mode_config.fb_lock); |
3198 | fb = __drm_framebuffer_lookup(dev, *id); | |
3199 | if (!fb) | |
3200 | goto fail_lookup; | |
3201 | ||
f453ba04 DA |
3202 | list_for_each_entry(fbl, &file_priv->fbs, filp_head) |
3203 | if (fb == fbl) | |
3204 | found = 1; | |
2b677e8c DV |
3205 | if (!found) |
3206 | goto fail_lookup; | |
3207 | ||
3208 | /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ | |
3209 | __drm_framebuffer_unregister(dev, fb); | |
f453ba04 | 3210 | |
4b096ac1 | 3211 | list_del_init(&fb->filp_head); |
2b677e8c | 3212 | mutex_unlock(&dev->mode_config.fb_lock); |
4b096ac1 | 3213 | mutex_unlock(&file_priv->fbs_lock); |
f453ba04 | 3214 | |
4b096ac1 | 3215 | drm_framebuffer_remove(fb); |
4b096ac1 | 3216 | |
2b677e8c DV |
3217 | return 0; |
3218 | ||
3219 | fail_lookup: | |
3220 | mutex_unlock(&dev->mode_config.fb_lock); | |
3221 | mutex_unlock(&file_priv->fbs_lock); | |
3222 | ||
37c4e705 | 3223 | return -ENOENT; |
f453ba04 DA |
3224 | } |
3225 | ||
3226 | /** | |
3227 | * drm_mode_getfb - get FB info | |
065a50ed DV |
3228 | * @dev: drm device for the ioctl |
3229 | * @data: data pointer for the ioctl | |
3230 | * @file_priv: drm file for the ioctl call | |
f453ba04 | 3231 | * |
f453ba04 DA |
3232 | * Lookup the FB given its ID and return info about it. |
3233 | * | |
3234 | * Called by the user via ioctl. | |
3235 | * | |
c8e32cc1 | 3236 | * Returns: |
f453ba04 DA |
3237 | * Zero on success, errno on failure. |
3238 | */ | |
3239 | int drm_mode_getfb(struct drm_device *dev, | |
3240 | void *data, struct drm_file *file_priv) | |
3241 | { | |
3242 | struct drm_mode_fb_cmd *r = data; | |
f453ba04 | 3243 | struct drm_framebuffer *fb; |
58c0dca1 | 3244 | int ret; |
f453ba04 | 3245 | |
fb3b06c8 DA |
3246 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3247 | return -EINVAL; | |
3248 | ||
786b99ed | 3249 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
58c0dca1 | 3250 | if (!fb) |
37c4e705 | 3251 | return -ENOENT; |
f453ba04 DA |
3252 | |
3253 | r->height = fb->height; | |
3254 | r->width = fb->width; | |
3255 | r->depth = fb->depth; | |
3256 | r->bpp = fb->bits_per_pixel; | |
01f2c773 | 3257 | r->pitch = fb->pitches[0]; |
101b96f3 | 3258 | if (fb->funcs->create_handle) { |
09f308f7 | 3259 | if (file_priv->is_master || capable(CAP_SYS_ADMIN) || |
43683057 | 3260 | drm_is_control_client(file_priv)) { |
101b96f3 DH |
3261 | ret = fb->funcs->create_handle(fb, file_priv, |
3262 | &r->handle); | |
3263 | } else { | |
3264 | /* GET_FB() is an unprivileged ioctl so we must not | |
3265 | * return a buffer-handle to non-master processes! For | |
3266 | * backwards-compatibility reasons, we cannot make | |
3267 | * GET_FB() privileged, so just return an invalid handle | |
3268 | * for non-masters. */ | |
3269 | r->handle = 0; | |
3270 | ret = 0; | |
3271 | } | |
3272 | } else { | |
af26ef3b | 3273 | ret = -ENODEV; |
101b96f3 | 3274 | } |
f453ba04 | 3275 | |
58c0dca1 DV |
3276 | drm_framebuffer_unreference(fb); |
3277 | ||
f453ba04 DA |
3278 | return ret; |
3279 | } | |
3280 | ||
c8e32cc1 DV |
3281 | /** |
3282 | * drm_mode_dirtyfb_ioctl - flush frontbuffer rendering on an FB | |
3283 | * @dev: drm device for the ioctl | |
3284 | * @data: data pointer for the ioctl | |
3285 | * @file_priv: drm file for the ioctl call | |
3286 | * | |
3287 | * Lookup the FB and flush out the damaged area supplied by userspace as a clip | |
3288 | * rectangle list. Generic userspace which does frontbuffer rendering must call | |
3289 | * this ioctl to flush out the changes on manual-update display outputs, e.g. | |
3290 | * usb display-link, mipi manual update panels or edp panel self refresh modes. | |
3291 | * | |
3292 | * Modesetting drivers which always update the frontbuffer do not need to | |
3293 | * implement the corresponding ->dirty framebuffer callback. | |
3294 | * | |
3295 | * Called by the user via ioctl. | |
3296 | * | |
3297 | * Returns: | |
3298 | * Zero on success, errno on failure. | |
3299 | */ | |
884840aa JB |
3300 | int drm_mode_dirtyfb_ioctl(struct drm_device *dev, |
3301 | void *data, struct drm_file *file_priv) | |
3302 | { | |
3303 | struct drm_clip_rect __user *clips_ptr; | |
3304 | struct drm_clip_rect *clips = NULL; | |
3305 | struct drm_mode_fb_dirty_cmd *r = data; | |
884840aa JB |
3306 | struct drm_framebuffer *fb; |
3307 | unsigned flags; | |
3308 | int num_clips; | |
4a1b0714 | 3309 | int ret; |
884840aa | 3310 | |
fb3b06c8 DA |
3311 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3312 | return -EINVAL; | |
3313 | ||
786b99ed | 3314 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
4ccf097f | 3315 | if (!fb) |
37c4e705 | 3316 | return -ENOENT; |
884840aa JB |
3317 | |
3318 | num_clips = r->num_clips; | |
81f6c7f8 | 3319 | clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; |
884840aa JB |
3320 | |
3321 | if (!num_clips != !clips_ptr) { | |
3322 | ret = -EINVAL; | |
3323 | goto out_err1; | |
3324 | } | |
3325 | ||
3326 | flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags; | |
3327 | ||
3328 | /* If userspace annotates copy, clips must come in pairs */ | |
3329 | if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) { | |
3330 | ret = -EINVAL; | |
3331 | goto out_err1; | |
3332 | } | |
3333 | ||
3334 | if (num_clips && clips_ptr) { | |
a5cd3351 XW |
3335 | if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) { |
3336 | ret = -EINVAL; | |
3337 | goto out_err1; | |
3338 | } | |
884840aa JB |
3339 | clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL); |
3340 | if (!clips) { | |
3341 | ret = -ENOMEM; | |
3342 | goto out_err1; | |
3343 | } | |
3344 | ||
3345 | ret = copy_from_user(clips, clips_ptr, | |
3346 | num_clips * sizeof(*clips)); | |
e902a358 DC |
3347 | if (ret) { |
3348 | ret = -EFAULT; | |
884840aa | 3349 | goto out_err2; |
e902a358 | 3350 | } |
884840aa JB |
3351 | } |
3352 | ||
3353 | if (fb->funcs->dirty) { | |
02b00162 TH |
3354 | ret = fb->funcs->dirty(fb, file_priv, flags, r->color, |
3355 | clips, num_clips); | |
884840aa JB |
3356 | } else { |
3357 | ret = -ENOSYS; | |
884840aa JB |
3358 | } |
3359 | ||
3360 | out_err2: | |
3361 | kfree(clips); | |
3362 | out_err1: | |
4ccf097f DV |
3363 | drm_framebuffer_unreference(fb); |
3364 | ||
884840aa JB |
3365 | return ret; |
3366 | } | |
3367 | ||
3368 | ||
f453ba04 DA |
3369 | /** |
3370 | * drm_fb_release - remove and free the FBs on this file | |
065a50ed | 3371 | * @priv: drm file for the ioctl |
f453ba04 | 3372 | * |
f453ba04 DA |
3373 | * Destroy all the FBs associated with @filp. |
3374 | * | |
3375 | * Called by the user via ioctl. | |
3376 | * | |
c8e32cc1 | 3377 | * Returns: |
f453ba04 DA |
3378 | * Zero on success, errno on failure. |
3379 | */ | |
ea39f835 | 3380 | void drm_fb_release(struct drm_file *priv) |
f453ba04 | 3381 | { |
f453ba04 DA |
3382 | struct drm_device *dev = priv->minor->dev; |
3383 | struct drm_framebuffer *fb, *tfb; | |
3384 | ||
1b116297 DV |
3385 | /* |
3386 | * When the file gets released that means no one else can access the fb | |
3387 | * list any more, so no need to grab fpriv->fbs_lock. And we need to to | |
3388 | * avoid upsetting lockdep since the universal cursor code adds a | |
3389 | * framebuffer while holding mutex locks. | |
3390 | * | |
3391 | * Note that a real deadlock between fpriv->fbs_lock and the modeset | |
3392 | * locks is impossible here since no one else but this function can get | |
3393 | * at it any more. | |
3394 | */ | |
f453ba04 | 3395 | list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { |
2b677e8c DV |
3396 | |
3397 | mutex_lock(&dev->mode_config.fb_lock); | |
3398 | /* Mark fb as reaped, we still have a ref from fpriv->fbs. */ | |
3399 | __drm_framebuffer_unregister(dev, fb); | |
3400 | mutex_unlock(&dev->mode_config.fb_lock); | |
3401 | ||
4b096ac1 | 3402 | list_del_init(&fb->filp_head); |
2b677e8c DV |
3403 | |
3404 | /* This will also drop the fpriv->fbs reference. */ | |
f7eff60e | 3405 | drm_framebuffer_remove(fb); |
f453ba04 | 3406 | } |
f453ba04 DA |
3407 | } |
3408 | ||
c8e32cc1 DV |
3409 | /** |
3410 | * drm_property_create - create a new property type | |
3411 | * @dev: drm device | |
3412 | * @flags: flags specifying the property type | |
3413 | * @name: name of the property | |
3414 | * @num_values: number of pre-defined values | |
3415 | * | |
3416 | * This creates a new generic drm property which can then be attached to a drm | |
3417 | * object with drm_object_attach_property. The returned property object must be | |
3418 | * freed with drm_property_destroy. | |
3419 | * | |
3b5b9932 DL |
3420 | * Note that the DRM core keeps a per-device list of properties and that, if |
3421 | * drm_mode_config_cleanup() is called, it will destroy all properties created | |
3422 | * by the driver. | |
3423 | * | |
c8e32cc1 DV |
3424 | * Returns: |
3425 | * A pointer to the newly created property on success, NULL on failure. | |
3426 | */ | |
f453ba04 DA |
3427 | struct drm_property *drm_property_create(struct drm_device *dev, int flags, |
3428 | const char *name, int num_values) | |
3429 | { | |
3430 | struct drm_property *property = NULL; | |
6bfc56aa | 3431 | int ret; |
f453ba04 DA |
3432 | |
3433 | property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); | |
3434 | if (!property) | |
3435 | return NULL; | |
3436 | ||
98f75de4 RC |
3437 | property->dev = dev; |
3438 | ||
f453ba04 DA |
3439 | if (num_values) { |
3440 | property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL); | |
3441 | if (!property->values) | |
3442 | goto fail; | |
3443 | } | |
3444 | ||
6bfc56aa VS |
3445 | ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); |
3446 | if (ret) | |
3447 | goto fail; | |
3448 | ||
f453ba04 DA |
3449 | property->flags = flags; |
3450 | property->num_values = num_values; | |
3451 | INIT_LIST_HEAD(&property->enum_blob_list); | |
3452 | ||
471dd2ef | 3453 | if (name) { |
f453ba04 | 3454 | strncpy(property->name, name, DRM_PROP_NAME_LEN); |
471dd2ef VL |
3455 | property->name[DRM_PROP_NAME_LEN-1] = '\0'; |
3456 | } | |
f453ba04 DA |
3457 | |
3458 | list_add_tail(&property->head, &dev->mode_config.property_list); | |
5ea22f24 RC |
3459 | |
3460 | WARN_ON(!drm_property_type_valid(property)); | |
3461 | ||
f453ba04 DA |
3462 | return property; |
3463 | fail: | |
6bfc56aa | 3464 | kfree(property->values); |
f453ba04 DA |
3465 | kfree(property); |
3466 | return NULL; | |
3467 | } | |
3468 | EXPORT_SYMBOL(drm_property_create); | |
3469 | ||
c8e32cc1 | 3470 | /** |
2aa9d2bc | 3471 | * drm_property_create_enum - create a new enumeration property type |
c8e32cc1 DV |
3472 | * @dev: drm device |
3473 | * @flags: flags specifying the property type | |
3474 | * @name: name of the property | |
3475 | * @props: enumeration lists with property values | |
3476 | * @num_values: number of pre-defined values | |
3477 | * | |
3478 | * This creates a new generic drm property which can then be attached to a drm | |
3479 | * object with drm_object_attach_property. The returned property object must be | |
3480 | * freed with drm_property_destroy. | |
3481 | * | |
3482 | * Userspace is only allowed to set one of the predefined values for enumeration | |
3483 | * properties. | |
3484 | * | |
3485 | * Returns: | |
3486 | * A pointer to the newly created property on success, NULL on failure. | |
3487 | */ | |
4a67d391 SH |
3488 | struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, |
3489 | const char *name, | |
3490 | const struct drm_prop_enum_list *props, | |
3491 | int num_values) | |
3492 | { | |
3493 | struct drm_property *property; | |
3494 | int i, ret; | |
3495 | ||
3496 | flags |= DRM_MODE_PROP_ENUM; | |
3497 | ||
3498 | property = drm_property_create(dev, flags, name, num_values); | |
3499 | if (!property) | |
3500 | return NULL; | |
3501 | ||
3502 | for (i = 0; i < num_values; i++) { | |
3503 | ret = drm_property_add_enum(property, i, | |
3504 | props[i].type, | |
3505 | props[i].name); | |
3506 | if (ret) { | |
3507 | drm_property_destroy(dev, property); | |
3508 | return NULL; | |
3509 | } | |
3510 | } | |
3511 | ||
3512 | return property; | |
3513 | } | |
3514 | EXPORT_SYMBOL(drm_property_create_enum); | |
3515 | ||
c8e32cc1 | 3516 | /** |
2aa9d2bc | 3517 | * drm_property_create_bitmask - create a new bitmask property type |
c8e32cc1 DV |
3518 | * @dev: drm device |
3519 | * @flags: flags specifying the property type | |
3520 | * @name: name of the property | |
3521 | * @props: enumeration lists with property bitflags | |
295ee853 DV |
3522 | * @num_props: size of the @props array |
3523 | * @supported_bits: bitmask of all supported enumeration values | |
c8e32cc1 | 3524 | * |
295ee853 | 3525 | * This creates a new bitmask drm property which can then be attached to a drm |
c8e32cc1 DV |
3526 | * object with drm_object_attach_property. The returned property object must be |
3527 | * freed with drm_property_destroy. | |
3528 | * | |
3529 | * Compared to plain enumeration properties userspace is allowed to set any | |
3530 | * or'ed together combination of the predefined property bitflag values | |
3531 | * | |
3532 | * Returns: | |
3533 | * A pointer to the newly created property on success, NULL on failure. | |
3534 | */ | |
49e27545 RC |
3535 | struct drm_property *drm_property_create_bitmask(struct drm_device *dev, |
3536 | int flags, const char *name, | |
3537 | const struct drm_prop_enum_list *props, | |
7689ffb3 VS |
3538 | int num_props, |
3539 | uint64_t supported_bits) | |
49e27545 RC |
3540 | { |
3541 | struct drm_property *property; | |
7689ffb3 VS |
3542 | int i, ret, index = 0; |
3543 | int num_values = hweight64(supported_bits); | |
49e27545 RC |
3544 | |
3545 | flags |= DRM_MODE_PROP_BITMASK; | |
3546 | ||
3547 | property = drm_property_create(dev, flags, name, num_values); | |
3548 | if (!property) | |
3549 | return NULL; | |
7689ffb3 VS |
3550 | for (i = 0; i < num_props; i++) { |
3551 | if (!(supported_bits & (1ULL << props[i].type))) | |
3552 | continue; | |
49e27545 | 3553 | |
7689ffb3 VS |
3554 | if (WARN_ON(index >= num_values)) { |
3555 | drm_property_destroy(dev, property); | |
3556 | return NULL; | |
3557 | } | |
3558 | ||
3559 | ret = drm_property_add_enum(property, index++, | |
49e27545 RC |
3560 | props[i].type, |
3561 | props[i].name); | |
3562 | if (ret) { | |
3563 | drm_property_destroy(dev, property); | |
3564 | return NULL; | |
3565 | } | |
3566 | } | |
3567 | ||
3568 | return property; | |
3569 | } | |
3570 | EXPORT_SYMBOL(drm_property_create_bitmask); | |
3571 | ||
ebc44cf3 RC |
3572 | static struct drm_property *property_create_range(struct drm_device *dev, |
3573 | int flags, const char *name, | |
3574 | uint64_t min, uint64_t max) | |
3575 | { | |
3576 | struct drm_property *property; | |
3577 | ||
3578 | property = drm_property_create(dev, flags, name, 2); | |
3579 | if (!property) | |
3580 | return NULL; | |
3581 | ||
3582 | property->values[0] = min; | |
3583 | property->values[1] = max; | |
3584 | ||
3585 | return property; | |
3586 | } | |
3587 | ||
c8e32cc1 | 3588 | /** |
2aa9d2bc | 3589 | * drm_property_create_range - create a new ranged property type |
c8e32cc1 DV |
3590 | * @dev: drm device |
3591 | * @flags: flags specifying the property type | |
3592 | * @name: name of the property | |
3593 | * @min: minimum value of the property | |
3594 | * @max: maximum value of the property | |
3595 | * | |
3596 | * This creates a new generic drm property which can then be attached to a drm | |
3597 | * object with drm_object_attach_property. The returned property object must be | |
3598 | * freed with drm_property_destroy. | |
3599 | * | |
32197aab | 3600 | * Userspace is allowed to set any integer value in the (min, max) range |
c8e32cc1 DV |
3601 | * inclusive. |
3602 | * | |
3603 | * Returns: | |
3604 | * A pointer to the newly created property on success, NULL on failure. | |
3605 | */ | |
d9bc3c02 SH |
3606 | struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, |
3607 | const char *name, | |
3608 | uint64_t min, uint64_t max) | |
3609 | { | |
ebc44cf3 RC |
3610 | return property_create_range(dev, DRM_MODE_PROP_RANGE | flags, |
3611 | name, min, max); | |
d9bc3c02 SH |
3612 | } |
3613 | EXPORT_SYMBOL(drm_property_create_range); | |
3614 | ||
ebc44cf3 RC |
3615 | struct drm_property *drm_property_create_signed_range(struct drm_device *dev, |
3616 | int flags, const char *name, | |
3617 | int64_t min, int64_t max) | |
3618 | { | |
3619 | return property_create_range(dev, DRM_MODE_PROP_SIGNED_RANGE | flags, | |
3620 | name, I642U64(min), I642U64(max)); | |
3621 | } | |
3622 | EXPORT_SYMBOL(drm_property_create_signed_range); | |
3623 | ||
98f75de4 RC |
3624 | struct drm_property *drm_property_create_object(struct drm_device *dev, |
3625 | int flags, const char *name, uint32_t type) | |
3626 | { | |
3627 | struct drm_property *property; | |
3628 | ||
3629 | flags |= DRM_MODE_PROP_OBJECT; | |
3630 | ||
3631 | property = drm_property_create(dev, flags, name, 1); | |
3632 | if (!property) | |
3633 | return NULL; | |
3634 | ||
3635 | property->values[0] = type; | |
3636 | ||
3637 | return property; | |
3638 | } | |
3639 | EXPORT_SYMBOL(drm_property_create_object); | |
3640 | ||
c8e32cc1 DV |
3641 | /** |
3642 | * drm_property_add_enum - add a possible value to an enumeration property | |
3643 | * @property: enumeration property to change | |
3644 | * @index: index of the new enumeration | |
3645 | * @value: value of the new enumeration | |
3646 | * @name: symbolic name of the new enumeration | |
3647 | * | |
3648 | * This functions adds enumerations to a property. | |
3649 | * | |
3650 | * It's use is deprecated, drivers should use one of the more specific helpers | |
3651 | * to directly create the property with all enumerations already attached. | |
3652 | * | |
3653 | * Returns: | |
3654 | * Zero on success, error code on failure. | |
3655 | */ | |
f453ba04 DA |
3656 | int drm_property_add_enum(struct drm_property *property, int index, |
3657 | uint64_t value, const char *name) | |
3658 | { | |
3659 | struct drm_property_enum *prop_enum; | |
3660 | ||
5ea22f24 RC |
3661 | if (!(drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
3662 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK))) | |
49e27545 RC |
3663 | return -EINVAL; |
3664 | ||
3665 | /* | |
3666 | * Bitmask enum properties have the additional constraint of values | |
3667 | * from 0 to 63 | |
3668 | */ | |
5ea22f24 RC |
3669 | if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK) && |
3670 | (value > 63)) | |
f453ba04 DA |
3671 | return -EINVAL; |
3672 | ||
3673 | if (!list_empty(&property->enum_blob_list)) { | |
3674 | list_for_each_entry(prop_enum, &property->enum_blob_list, head) { | |
3675 | if (prop_enum->value == value) { | |
3676 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
3677 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
3678 | return 0; | |
3679 | } | |
3680 | } | |
3681 | } | |
3682 | ||
3683 | prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); | |
3684 | if (!prop_enum) | |
3685 | return -ENOMEM; | |
3686 | ||
3687 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
3688 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
3689 | prop_enum->value = value; | |
3690 | ||
3691 | property->values[index] = value; | |
3692 | list_add_tail(&prop_enum->head, &property->enum_blob_list); | |
3693 | return 0; | |
3694 | } | |
3695 | EXPORT_SYMBOL(drm_property_add_enum); | |
3696 | ||
c8e32cc1 DV |
3697 | /** |
3698 | * drm_property_destroy - destroy a drm property | |
3699 | * @dev: drm device | |
3700 | * @property: property to destry | |
3701 | * | |
3702 | * This function frees a property including any attached resources like | |
3703 | * enumeration values. | |
3704 | */ | |
f453ba04 DA |
3705 | void drm_property_destroy(struct drm_device *dev, struct drm_property *property) |
3706 | { | |
3707 | struct drm_property_enum *prop_enum, *pt; | |
3708 | ||
3709 | list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) { | |
3710 | list_del(&prop_enum->head); | |
3711 | kfree(prop_enum); | |
3712 | } | |
3713 | ||
3714 | if (property->num_values) | |
3715 | kfree(property->values); | |
3716 | drm_mode_object_put(dev, &property->base); | |
3717 | list_del(&property->head); | |
3718 | kfree(property); | |
3719 | } | |
3720 | EXPORT_SYMBOL(drm_property_destroy); | |
3721 | ||
c8e32cc1 DV |
3722 | /** |
3723 | * drm_object_attach_property - attach a property to a modeset object | |
3724 | * @obj: drm modeset object | |
3725 | * @property: property to attach | |
3726 | * @init_val: initial value of the property | |
3727 | * | |
3728 | * This attaches the given property to the modeset object with the given initial | |
3729 | * value. Currently this function cannot fail since the properties are stored in | |
3730 | * a statically sized array. | |
3731 | */ | |
c543188a PZ |
3732 | void drm_object_attach_property(struct drm_mode_object *obj, |
3733 | struct drm_property *property, | |
3734 | uint64_t init_val) | |
3735 | { | |
7f88a9be | 3736 | int count = obj->properties->count; |
c543188a | 3737 | |
7f88a9be PZ |
3738 | if (count == DRM_OBJECT_MAX_PROPERTY) { |
3739 | WARN(1, "Failed to attach object property (type: 0x%x). Please " | |
3740 | "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time " | |
3741 | "you see this message on the same object type.\n", | |
3742 | obj->type); | |
3743 | return; | |
c543188a PZ |
3744 | } |
3745 | ||
7f88a9be PZ |
3746 | obj->properties->ids[count] = property->base.id; |
3747 | obj->properties->values[count] = init_val; | |
3748 | obj->properties->count++; | |
c543188a PZ |
3749 | } |
3750 | EXPORT_SYMBOL(drm_object_attach_property); | |
3751 | ||
c8e32cc1 DV |
3752 | /** |
3753 | * drm_object_property_set_value - set the value of a property | |
3754 | * @obj: drm mode object to set property value for | |
3755 | * @property: property to set | |
3756 | * @val: value the property should be set to | |
3757 | * | |
3758 | * This functions sets a given property on a given object. This function only | |
3759 | * changes the software state of the property, it does not call into the | |
3760 | * driver's ->set_property callback. | |
3761 | * | |
3762 | * Returns: | |
3763 | * Zero on success, error code on failure. | |
3764 | */ | |
c543188a PZ |
3765 | int drm_object_property_set_value(struct drm_mode_object *obj, |
3766 | struct drm_property *property, uint64_t val) | |
3767 | { | |
3768 | int i; | |
3769 | ||
7f88a9be | 3770 | for (i = 0; i < obj->properties->count; i++) { |
c543188a PZ |
3771 | if (obj->properties->ids[i] == property->base.id) { |
3772 | obj->properties->values[i] = val; | |
3773 | return 0; | |
3774 | } | |
3775 | } | |
3776 | ||
3777 | return -EINVAL; | |
3778 | } | |
3779 | EXPORT_SYMBOL(drm_object_property_set_value); | |
3780 | ||
c8e32cc1 DV |
3781 | /** |
3782 | * drm_object_property_get_value - retrieve the value of a property | |
3783 | * @obj: drm mode object to get property value from | |
3784 | * @property: property to retrieve | |
3785 | * @val: storage for the property value | |
3786 | * | |
3787 | * This function retrieves the softare state of the given property for the given | |
3788 | * property. Since there is no driver callback to retrieve the current property | |
3789 | * value this might be out of sync with the hardware, depending upon the driver | |
3790 | * and property. | |
3791 | * | |
3792 | * Returns: | |
3793 | * Zero on success, error code on failure. | |
3794 | */ | |
c543188a PZ |
3795 | int drm_object_property_get_value(struct drm_mode_object *obj, |
3796 | struct drm_property *property, uint64_t *val) | |
3797 | { | |
3798 | int i; | |
3799 | ||
7f88a9be | 3800 | for (i = 0; i < obj->properties->count; i++) { |
c543188a PZ |
3801 | if (obj->properties->ids[i] == property->base.id) { |
3802 | *val = obj->properties->values[i]; | |
3803 | return 0; | |
3804 | } | |
3805 | } | |
3806 | ||
3807 | return -EINVAL; | |
3808 | } | |
3809 | EXPORT_SYMBOL(drm_object_property_get_value); | |
3810 | ||
c8e32cc1 DV |
3811 | /** |
3812 | * drm_mode_getproperty_ioctl - get the current value of a connector's property | |
3813 | * @dev: DRM device | |
3814 | * @data: ioctl data | |
3815 | * @file_priv: DRM file info | |
3816 | * | |
3817 | * This function retrieves the current value for an connectors's property. | |
3818 | * | |
3819 | * Called by the user via ioctl. | |
3820 | * | |
3821 | * Returns: | |
3822 | * Zero on success, errno on failure. | |
3823 | */ | |
f453ba04 DA |
3824 | int drm_mode_getproperty_ioctl(struct drm_device *dev, |
3825 | void *data, struct drm_file *file_priv) | |
3826 | { | |
f453ba04 DA |
3827 | struct drm_mode_get_property *out_resp = data; |
3828 | struct drm_property *property; | |
3829 | int enum_count = 0; | |
3830 | int blob_count = 0; | |
3831 | int value_count = 0; | |
3832 | int ret = 0, i; | |
3833 | int copied; | |
3834 | struct drm_property_enum *prop_enum; | |
3835 | struct drm_mode_property_enum __user *enum_ptr; | |
3836 | struct drm_property_blob *prop_blob; | |
81f6c7f8 | 3837 | uint32_t __user *blob_id_ptr; |
f453ba04 DA |
3838 | uint64_t __user *values_ptr; |
3839 | uint32_t __user *blob_length_ptr; | |
3840 | ||
fb3b06c8 DA |
3841 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3842 | return -EINVAL; | |
3843 | ||
84849903 | 3844 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
3845 | property = drm_property_find(dev, out_resp->prop_id); |
3846 | if (!property) { | |
f27657f2 | 3847 | ret = -ENOENT; |
f453ba04 DA |
3848 | goto done; |
3849 | } | |
f453ba04 | 3850 | |
5ea22f24 RC |
3851 | if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
3852 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { | |
f453ba04 DA |
3853 | list_for_each_entry(prop_enum, &property->enum_blob_list, head) |
3854 | enum_count++; | |
5ea22f24 | 3855 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) { |
f453ba04 DA |
3856 | list_for_each_entry(prop_blob, &property->enum_blob_list, head) |
3857 | blob_count++; | |
3858 | } | |
3859 | ||
3860 | value_count = property->num_values; | |
3861 | ||
3862 | strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); | |
3863 | out_resp->name[DRM_PROP_NAME_LEN-1] = 0; | |
3864 | out_resp->flags = property->flags; | |
3865 | ||
3866 | if ((out_resp->count_values >= value_count) && value_count) { | |
81f6c7f8 | 3867 | values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; |
f453ba04 DA |
3868 | for (i = 0; i < value_count; i++) { |
3869 | if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { | |
3870 | ret = -EFAULT; | |
3871 | goto done; | |
3872 | } | |
3873 | } | |
3874 | } | |
3875 | out_resp->count_values = value_count; | |
3876 | ||
5ea22f24 RC |
3877 | if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
3878 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { | |
f453ba04 DA |
3879 | if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { |
3880 | copied = 0; | |
81f6c7f8 | 3881 | enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; |
f453ba04 DA |
3882 | list_for_each_entry(prop_enum, &property->enum_blob_list, head) { |
3883 | ||
3884 | if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { | |
3885 | ret = -EFAULT; | |
3886 | goto done; | |
3887 | } | |
3888 | ||
3889 | if (copy_to_user(&enum_ptr[copied].name, | |
3890 | &prop_enum->name, DRM_PROP_NAME_LEN)) { | |
3891 | ret = -EFAULT; | |
3892 | goto done; | |
3893 | } | |
3894 | copied++; | |
3895 | } | |
3896 | } | |
3897 | out_resp->count_enum_blobs = enum_count; | |
3898 | } | |
3899 | ||
5ea22f24 | 3900 | if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) { |
f453ba04 DA |
3901 | if ((out_resp->count_enum_blobs >= blob_count) && blob_count) { |
3902 | copied = 0; | |
81f6c7f8 VS |
3903 | blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr; |
3904 | blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr; | |
f453ba04 DA |
3905 | |
3906 | list_for_each_entry(prop_blob, &property->enum_blob_list, head) { | |
3907 | if (put_user(prop_blob->base.id, blob_id_ptr + copied)) { | |
3908 | ret = -EFAULT; | |
3909 | goto done; | |
3910 | } | |
3911 | ||
3912 | if (put_user(prop_blob->length, blob_length_ptr + copied)) { | |
3913 | ret = -EFAULT; | |
3914 | goto done; | |
3915 | } | |
3916 | ||
3917 | copied++; | |
3918 | } | |
3919 | } | |
3920 | out_resp->count_enum_blobs = blob_count; | |
3921 | } | |
3922 | done: | |
84849903 | 3923 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
3924 | return ret; |
3925 | } | |
3926 | ||
3927 | static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length, | |
3928 | void *data) | |
3929 | { | |
3930 | struct drm_property_blob *blob; | |
6bfc56aa | 3931 | int ret; |
f453ba04 DA |
3932 | |
3933 | if (!length || !data) | |
3934 | return NULL; | |
3935 | ||
3936 | blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); | |
3937 | if (!blob) | |
3938 | return NULL; | |
3939 | ||
6bfc56aa VS |
3940 | ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB); |
3941 | if (ret) { | |
3942 | kfree(blob); | |
3943 | return NULL; | |
3944 | } | |
3945 | ||
f453ba04 DA |
3946 | blob->length = length; |
3947 | ||
3948 | memcpy(blob->data, data, length); | |
3949 | ||
f453ba04 DA |
3950 | list_add_tail(&blob->head, &dev->mode_config.property_blob_list); |
3951 | return blob; | |
3952 | } | |
3953 | ||
3954 | static void drm_property_destroy_blob(struct drm_device *dev, | |
3955 | struct drm_property_blob *blob) | |
3956 | { | |
3957 | drm_mode_object_put(dev, &blob->base); | |
3958 | list_del(&blob->head); | |
3959 | kfree(blob); | |
3960 | } | |
3961 | ||
c8e32cc1 DV |
3962 | /** |
3963 | * drm_mode_getblob_ioctl - get the contents of a blob property value | |
3964 | * @dev: DRM device | |
3965 | * @data: ioctl data | |
3966 | * @file_priv: DRM file info | |
3967 | * | |
3968 | * This function retrieves the contents of a blob property. The value stored in | |
3969 | * an object's blob property is just a normal modeset object id. | |
3970 | * | |
3971 | * Called by the user via ioctl. | |
3972 | * | |
3973 | * Returns: | |
3974 | * Zero on success, errno on failure. | |
3975 | */ | |
f453ba04 DA |
3976 | int drm_mode_getblob_ioctl(struct drm_device *dev, |
3977 | void *data, struct drm_file *file_priv) | |
3978 | { | |
f453ba04 DA |
3979 | struct drm_mode_get_blob *out_resp = data; |
3980 | struct drm_property_blob *blob; | |
3981 | int ret = 0; | |
81f6c7f8 | 3982 | void __user *blob_ptr; |
f453ba04 | 3983 | |
fb3b06c8 DA |
3984 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
3985 | return -EINVAL; | |
3986 | ||
84849903 | 3987 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
3988 | blob = drm_property_blob_find(dev, out_resp->blob_id); |
3989 | if (!blob) { | |
f27657f2 | 3990 | ret = -ENOENT; |
f453ba04 DA |
3991 | goto done; |
3992 | } | |
f453ba04 DA |
3993 | |
3994 | if (out_resp->length == blob->length) { | |
81f6c7f8 | 3995 | blob_ptr = (void __user *)(unsigned long)out_resp->data; |
f453ba04 DA |
3996 | if (copy_to_user(blob_ptr, blob->data, blob->length)){ |
3997 | ret = -EFAULT; | |
3998 | goto done; | |
3999 | } | |
4000 | } | |
4001 | out_resp->length = blob->length; | |
4002 | ||
4003 | done: | |
84849903 | 4004 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
4005 | return ret; |
4006 | } | |
4007 | ||
cc7096fb DA |
4008 | /** |
4009 | * drm_mode_connector_set_path_property - set tile property on connector | |
4010 | * @connector: connector to set property on. | |
4011 | * @path: path to use for property. | |
4012 | * | |
4013 | * This creates a property to expose to userspace to specify a | |
4014 | * connector path. This is mainly used for DisplayPort MST where | |
4015 | * connectors have a topology and we want to allow userspace to give | |
4016 | * them more meaningful names. | |
4017 | * | |
4018 | * Returns: | |
4019 | * Zero on success, errno on failure. | |
4020 | */ | |
43aba7eb DA |
4021 | int drm_mode_connector_set_path_property(struct drm_connector *connector, |
4022 | char *path) | |
4023 | { | |
4024 | struct drm_device *dev = connector->dev; | |
4025 | int ret, size; | |
4026 | size = strlen(path) + 1; | |
4027 | ||
4028 | connector->path_blob_ptr = drm_property_create_blob(connector->dev, | |
4029 | size, path); | |
4030 | if (!connector->path_blob_ptr) | |
4031 | return -EINVAL; | |
4032 | ||
4033 | ret = drm_object_property_set_value(&connector->base, | |
4034 | dev->mode_config.path_property, | |
4035 | connector->path_blob_ptr->base.id); | |
4036 | return ret; | |
4037 | } | |
4038 | EXPORT_SYMBOL(drm_mode_connector_set_path_property); | |
4039 | ||
c8e32cc1 DV |
4040 | /** |
4041 | * drm_mode_connector_update_edid_property - update the edid property of a connector | |
4042 | * @connector: drm connector | |
4043 | * @edid: new value of the edid property | |
4044 | * | |
4045 | * This function creates a new blob modeset object and assigns its id to the | |
4046 | * connector's edid property. | |
4047 | * | |
4048 | * Returns: | |
4049 | * Zero on success, errno on failure. | |
4050 | */ | |
f453ba04 DA |
4051 | int drm_mode_connector_update_edid_property(struct drm_connector *connector, |
4052 | struct edid *edid) | |
4053 | { | |
4054 | struct drm_device *dev = connector->dev; | |
4a1b0714 | 4055 | int ret, size; |
f453ba04 | 4056 | |
4cf2b281 TW |
4057 | /* ignore requests to set edid when overridden */ |
4058 | if (connector->override_edid) | |
4059 | return 0; | |
4060 | ||
f453ba04 DA |
4061 | if (connector->edid_blob_ptr) |
4062 | drm_property_destroy_blob(dev, connector->edid_blob_ptr); | |
4063 | ||
4064 | /* Delete edid, when there is none. */ | |
4065 | if (!edid) { | |
4066 | connector->edid_blob_ptr = NULL; | |
58495563 | 4067 | ret = drm_object_property_set_value(&connector->base, dev->mode_config.edid_property, 0); |
f453ba04 DA |
4068 | return ret; |
4069 | } | |
4070 | ||
7466f4cc AJ |
4071 | size = EDID_LENGTH * (1 + edid->extensions); |
4072 | connector->edid_blob_ptr = drm_property_create_blob(connector->dev, | |
4073 | size, edid); | |
e655d122 SK |
4074 | if (!connector->edid_blob_ptr) |
4075 | return -EINVAL; | |
f453ba04 | 4076 | |
58495563 | 4077 | ret = drm_object_property_set_value(&connector->base, |
f453ba04 DA |
4078 | dev->mode_config.edid_property, |
4079 | connector->edid_blob_ptr->base.id); | |
4080 | ||
4081 | return ret; | |
4082 | } | |
4083 | EXPORT_SYMBOL(drm_mode_connector_update_edid_property); | |
4084 | ||
26a34815 | 4085 | static bool drm_property_change_is_valid(struct drm_property *property, |
592c20ee | 4086 | uint64_t value) |
26a34815 PZ |
4087 | { |
4088 | if (property->flags & DRM_MODE_PROP_IMMUTABLE) | |
4089 | return false; | |
5ea22f24 RC |
4090 | |
4091 | if (drm_property_type_is(property, DRM_MODE_PROP_RANGE)) { | |
26a34815 PZ |
4092 | if (value < property->values[0] || value > property->values[1]) |
4093 | return false; | |
4094 | return true; | |
ebc44cf3 RC |
4095 | } else if (drm_property_type_is(property, DRM_MODE_PROP_SIGNED_RANGE)) { |
4096 | int64_t svalue = U642I64(value); | |
4097 | if (svalue < U642I64(property->values[0]) || | |
4098 | svalue > U642I64(property->values[1])) | |
4099 | return false; | |
4100 | return true; | |
5ea22f24 | 4101 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { |
49e27545 | 4102 | int i; |
592c20ee | 4103 | uint64_t valid_mask = 0; |
49e27545 RC |
4104 | for (i = 0; i < property->num_values; i++) |
4105 | valid_mask |= (1ULL << property->values[i]); | |
4106 | return !(value & ~valid_mask); | |
5ea22f24 | 4107 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) { |
c4a56750 VS |
4108 | /* Only the driver knows */ |
4109 | return true; | |
98f75de4 RC |
4110 | } else if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { |
4111 | struct drm_mode_object *obj; | |
4112 | /* a zero value for an object property translates to null: */ | |
4113 | if (value == 0) | |
4114 | return true; | |
4115 | /* | |
4116 | * NOTE: use _object_find() directly to bypass restriction on | |
4117 | * looking up refcnt'd objects (ie. fb's). For a refcnt'd | |
4118 | * object this could race against object finalization, so it | |
4119 | * simply tells us that the object *was* valid. Which is good | |
4120 | * enough. | |
4121 | */ | |
4122 | obj = _object_find(property->dev, value, property->values[0]); | |
4123 | return obj != NULL; | |
26a34815 PZ |
4124 | } else { |
4125 | int i; | |
4126 | for (i = 0; i < property->num_values; i++) | |
4127 | if (property->values[i] == value) | |
4128 | return true; | |
4129 | return false; | |
4130 | } | |
4131 | } | |
4132 | ||
c8e32cc1 DV |
4133 | /** |
4134 | * drm_mode_connector_property_set_ioctl - set the current value of a connector property | |
4135 | * @dev: DRM device | |
4136 | * @data: ioctl data | |
4137 | * @file_priv: DRM file info | |
4138 | * | |
4139 | * This function sets the current value for a connectors's property. It also | |
4140 | * calls into a driver's ->set_property callback to update the hardware state | |
4141 | * | |
4142 | * Called by the user via ioctl. | |
4143 | * | |
4144 | * Returns: | |
4145 | * Zero on success, errno on failure. | |
4146 | */ | |
f453ba04 DA |
4147 | int drm_mode_connector_property_set_ioctl(struct drm_device *dev, |
4148 | void *data, struct drm_file *file_priv) | |
4149 | { | |
0057d8dd PZ |
4150 | struct drm_mode_connector_set_property *conn_set_prop = data; |
4151 | struct drm_mode_obj_set_property obj_set_prop = { | |
4152 | .value = conn_set_prop->value, | |
4153 | .prop_id = conn_set_prop->prop_id, | |
4154 | .obj_id = conn_set_prop->connector_id, | |
4155 | .obj_type = DRM_MODE_OBJECT_CONNECTOR | |
4156 | }; | |
fb3b06c8 | 4157 | |
0057d8dd PZ |
4158 | /* It does all the locking and checking we need */ |
4159 | return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv); | |
f453ba04 DA |
4160 | } |
4161 | ||
c543188a PZ |
4162 | static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, |
4163 | struct drm_property *property, | |
4164 | uint64_t value) | |
4165 | { | |
4166 | int ret = -EINVAL; | |
4167 | struct drm_connector *connector = obj_to_connector(obj); | |
4168 | ||
4169 | /* Do DPMS ourselves */ | |
4170 | if (property == connector->dev->mode_config.dpms_property) { | |
4171 | if (connector->funcs->dpms) | |
4172 | (*connector->funcs->dpms)(connector, (int)value); | |
4173 | ret = 0; | |
4174 | } else if (connector->funcs->set_property) | |
4175 | ret = connector->funcs->set_property(connector, property, value); | |
4176 | ||
4177 | /* store the property value if successful */ | |
4178 | if (!ret) | |
58495563 | 4179 | drm_object_property_set_value(&connector->base, property, value); |
c543188a PZ |
4180 | return ret; |
4181 | } | |
4182 | ||
bffd9de0 PZ |
4183 | static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, |
4184 | struct drm_property *property, | |
4185 | uint64_t value) | |
4186 | { | |
4187 | int ret = -EINVAL; | |
4188 | struct drm_crtc *crtc = obj_to_crtc(obj); | |
4189 | ||
4190 | if (crtc->funcs->set_property) | |
4191 | ret = crtc->funcs->set_property(crtc, property, value); | |
4192 | if (!ret) | |
4193 | drm_object_property_set_value(obj, property, value); | |
4194 | ||
4195 | return ret; | |
4196 | } | |
4197 | ||
3a5f87c2 TW |
4198 | /** |
4199 | * drm_mode_plane_set_obj_prop - set the value of a property | |
4200 | * @plane: drm plane object to set property value for | |
4201 | * @property: property to set | |
4202 | * @value: value the property should be set to | |
4203 | * | |
4204 | * This functions sets a given property on a given plane object. This function | |
4205 | * calls the driver's ->set_property callback and changes the software state of | |
4206 | * the property if the callback succeeds. | |
4207 | * | |
4208 | * Returns: | |
4209 | * Zero on success, error code on failure. | |
4210 | */ | |
4211 | int drm_mode_plane_set_obj_prop(struct drm_plane *plane, | |
4212 | struct drm_property *property, | |
4213 | uint64_t value) | |
4d93914a RC |
4214 | { |
4215 | int ret = -EINVAL; | |
3a5f87c2 | 4216 | struct drm_mode_object *obj = &plane->base; |
4d93914a RC |
4217 | |
4218 | if (plane->funcs->set_property) | |
4219 | ret = plane->funcs->set_property(plane, property, value); | |
4220 | if (!ret) | |
4221 | drm_object_property_set_value(obj, property, value); | |
4222 | ||
4223 | return ret; | |
4224 | } | |
3a5f87c2 | 4225 | EXPORT_SYMBOL(drm_mode_plane_set_obj_prop); |
4d93914a | 4226 | |
c8e32cc1 DV |
4227 | /** |
4228 | * drm_mode_getproperty_ioctl - get the current value of a object's property | |
4229 | * @dev: DRM device | |
4230 | * @data: ioctl data | |
4231 | * @file_priv: DRM file info | |
4232 | * | |
4233 | * This function retrieves the current value for an object's property. Compared | |
4234 | * to the connector specific ioctl this one is extended to also work on crtc and | |
4235 | * plane objects. | |
4236 | * | |
4237 | * Called by the user via ioctl. | |
4238 | * | |
4239 | * Returns: | |
4240 | * Zero on success, errno on failure. | |
4241 | */ | |
c543188a PZ |
4242 | int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, |
4243 | struct drm_file *file_priv) | |
4244 | { | |
4245 | struct drm_mode_obj_get_properties *arg = data; | |
4246 | struct drm_mode_object *obj; | |
4247 | int ret = 0; | |
4248 | int i; | |
4249 | int copied = 0; | |
4250 | int props_count = 0; | |
4251 | uint32_t __user *props_ptr; | |
4252 | uint64_t __user *prop_values_ptr; | |
4253 | ||
4254 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
4255 | return -EINVAL; | |
4256 | ||
84849903 | 4257 | drm_modeset_lock_all(dev); |
c543188a PZ |
4258 | |
4259 | obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); | |
4260 | if (!obj) { | |
f27657f2 | 4261 | ret = -ENOENT; |
c543188a PZ |
4262 | goto out; |
4263 | } | |
4264 | if (!obj->properties) { | |
4265 | ret = -EINVAL; | |
4266 | goto out; | |
4267 | } | |
4268 | ||
7f88a9be | 4269 | props_count = obj->properties->count; |
c543188a PZ |
4270 | |
4271 | /* This ioctl is called twice, once to determine how much space is | |
4272 | * needed, and the 2nd time to fill it. */ | |
4273 | if ((arg->count_props >= props_count) && props_count) { | |
4274 | copied = 0; | |
4275 | props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr); | |
4276 | prop_values_ptr = (uint64_t __user *)(unsigned long) | |
4277 | (arg->prop_values_ptr); | |
4278 | for (i = 0; i < props_count; i++) { | |
4279 | if (put_user(obj->properties->ids[i], | |
4280 | props_ptr + copied)) { | |
4281 | ret = -EFAULT; | |
4282 | goto out; | |
4283 | } | |
4284 | if (put_user(obj->properties->values[i], | |
4285 | prop_values_ptr + copied)) { | |
4286 | ret = -EFAULT; | |
4287 | goto out; | |
4288 | } | |
4289 | copied++; | |
4290 | } | |
4291 | } | |
4292 | arg->count_props = props_count; | |
4293 | out: | |
84849903 | 4294 | drm_modeset_unlock_all(dev); |
c543188a PZ |
4295 | return ret; |
4296 | } | |
4297 | ||
c8e32cc1 DV |
4298 | /** |
4299 | * drm_mode_obj_set_property_ioctl - set the current value of an object's property | |
4300 | * @dev: DRM device | |
4301 | * @data: ioctl data | |
4302 | * @file_priv: DRM file info | |
4303 | * | |
4304 | * This function sets the current value for an object's property. It also calls | |
4305 | * into a driver's ->set_property callback to update the hardware state. | |
4306 | * Compared to the connector specific ioctl this one is extended to also work on | |
4307 | * crtc and plane objects. | |
4308 | * | |
4309 | * Called by the user via ioctl. | |
4310 | * | |
4311 | * Returns: | |
4312 | * Zero on success, errno on failure. | |
4313 | */ | |
c543188a PZ |
4314 | int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, |
4315 | struct drm_file *file_priv) | |
4316 | { | |
4317 | struct drm_mode_obj_set_property *arg = data; | |
4318 | struct drm_mode_object *arg_obj; | |
4319 | struct drm_mode_object *prop_obj; | |
4320 | struct drm_property *property; | |
4321 | int ret = -EINVAL; | |
4322 | int i; | |
4323 | ||
4324 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) | |
4325 | return -EINVAL; | |
4326 | ||
84849903 | 4327 | drm_modeset_lock_all(dev); |
c543188a PZ |
4328 | |
4329 | arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); | |
f27657f2 VS |
4330 | if (!arg_obj) { |
4331 | ret = -ENOENT; | |
c543188a | 4332 | goto out; |
f27657f2 | 4333 | } |
c543188a PZ |
4334 | if (!arg_obj->properties) |
4335 | goto out; | |
4336 | ||
7f88a9be | 4337 | for (i = 0; i < arg_obj->properties->count; i++) |
c543188a PZ |
4338 | if (arg_obj->properties->ids[i] == arg->prop_id) |
4339 | break; | |
4340 | ||
7f88a9be | 4341 | if (i == arg_obj->properties->count) |
c543188a PZ |
4342 | goto out; |
4343 | ||
4344 | prop_obj = drm_mode_object_find(dev, arg->prop_id, | |
4345 | DRM_MODE_OBJECT_PROPERTY); | |
f27657f2 VS |
4346 | if (!prop_obj) { |
4347 | ret = -ENOENT; | |
c543188a | 4348 | goto out; |
f27657f2 | 4349 | } |
c543188a PZ |
4350 | property = obj_to_property(prop_obj); |
4351 | ||
4352 | if (!drm_property_change_is_valid(property, arg->value)) | |
4353 | goto out; | |
4354 | ||
4355 | switch (arg_obj->type) { | |
4356 | case DRM_MODE_OBJECT_CONNECTOR: | |
4357 | ret = drm_mode_connector_set_obj_prop(arg_obj, property, | |
4358 | arg->value); | |
4359 | break; | |
bffd9de0 PZ |
4360 | case DRM_MODE_OBJECT_CRTC: |
4361 | ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value); | |
4362 | break; | |
4d93914a | 4363 | case DRM_MODE_OBJECT_PLANE: |
3a5f87c2 TW |
4364 | ret = drm_mode_plane_set_obj_prop(obj_to_plane(arg_obj), |
4365 | property, arg->value); | |
4d93914a | 4366 | break; |
c543188a PZ |
4367 | } |
4368 | ||
4369 | out: | |
84849903 | 4370 | drm_modeset_unlock_all(dev); |
c543188a PZ |
4371 | return ret; |
4372 | } | |
4373 | ||
c8e32cc1 DV |
4374 | /** |
4375 | * drm_mode_connector_attach_encoder - attach a connector to an encoder | |
4376 | * @connector: connector to attach | |
4377 | * @encoder: encoder to attach @connector to | |
4378 | * | |
4379 | * This function links up a connector to an encoder. Note that the routing | |
4380 | * restrictions between encoders and crtcs are exposed to userspace through the | |
4381 | * possible_clones and possible_crtcs bitmasks. | |
4382 | * | |
4383 | * Returns: | |
4384 | * Zero on success, errno on failure. | |
4385 | */ | |
f453ba04 DA |
4386 | int drm_mode_connector_attach_encoder(struct drm_connector *connector, |
4387 | struct drm_encoder *encoder) | |
4388 | { | |
4389 | int i; | |
4390 | ||
4391 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { | |
4392 | if (connector->encoder_ids[i] == 0) { | |
4393 | connector->encoder_ids[i] = encoder->base.id; | |
4394 | return 0; | |
4395 | } | |
4396 | } | |
4397 | return -ENOMEM; | |
4398 | } | |
4399 | EXPORT_SYMBOL(drm_mode_connector_attach_encoder); | |
4400 | ||
c8e32cc1 DV |
4401 | /** |
4402 | * drm_mode_crtc_set_gamma_size - set the gamma table size | |
4403 | * @crtc: CRTC to set the gamma table size for | |
4404 | * @gamma_size: size of the gamma table | |
4405 | * | |
4406 | * Drivers which support gamma tables should set this to the supported gamma | |
4407 | * table size when initializing the CRTC. Currently the drm core only supports a | |
4408 | * fixed gamma table size. | |
4409 | * | |
4410 | * Returns: | |
4411 | * Zero on success, errno on failure. | |
4412 | */ | |
4cae5b84 | 4413 | int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, |
c8e32cc1 | 4414 | int gamma_size) |
f453ba04 DA |
4415 | { |
4416 | crtc->gamma_size = gamma_size; | |
4417 | ||
4418 | crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL); | |
4419 | if (!crtc->gamma_store) { | |
4420 | crtc->gamma_size = 0; | |
4cae5b84 | 4421 | return -ENOMEM; |
f453ba04 DA |
4422 | } |
4423 | ||
4cae5b84 | 4424 | return 0; |
f453ba04 DA |
4425 | } |
4426 | EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); | |
4427 | ||
c8e32cc1 DV |
4428 | /** |
4429 | * drm_mode_gamma_set_ioctl - set the gamma table | |
4430 | * @dev: DRM device | |
4431 | * @data: ioctl data | |
4432 | * @file_priv: DRM file info | |
4433 | * | |
4434 | * Set the gamma table of a CRTC to the one passed in by the user. Userspace can | |
4435 | * inquire the required gamma table size through drm_mode_gamma_get_ioctl. | |
4436 | * | |
4437 | * Called by the user via ioctl. | |
4438 | * | |
4439 | * Returns: | |
4440 | * Zero on success, errno on failure. | |
4441 | */ | |
f453ba04 DA |
4442 | int drm_mode_gamma_set_ioctl(struct drm_device *dev, |
4443 | void *data, struct drm_file *file_priv) | |
4444 | { | |
4445 | struct drm_mode_crtc_lut *crtc_lut = data; | |
f453ba04 DA |
4446 | struct drm_crtc *crtc; |
4447 | void *r_base, *g_base, *b_base; | |
4448 | int size; | |
4449 | int ret = 0; | |
4450 | ||
fb3b06c8 DA |
4451 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4452 | return -EINVAL; | |
4453 | ||
84849903 | 4454 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
4455 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
4456 | if (!crtc) { | |
f27657f2 | 4457 | ret = -ENOENT; |
f453ba04 DA |
4458 | goto out; |
4459 | } | |
f453ba04 | 4460 | |
ebe0f244 LP |
4461 | if (crtc->funcs->gamma_set == NULL) { |
4462 | ret = -ENOSYS; | |
4463 | goto out; | |
4464 | } | |
4465 | ||
f453ba04 DA |
4466 | /* memcpy into gamma store */ |
4467 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
4468 | ret = -EINVAL; | |
4469 | goto out; | |
4470 | } | |
4471 | ||
4472 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
4473 | r_base = crtc->gamma_store; | |
4474 | if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { | |
4475 | ret = -EFAULT; | |
4476 | goto out; | |
4477 | } | |
4478 | ||
4479 | g_base = r_base + size; | |
4480 | if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { | |
4481 | ret = -EFAULT; | |
4482 | goto out; | |
4483 | } | |
4484 | ||
4485 | b_base = g_base + size; | |
4486 | if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { | |
4487 | ret = -EFAULT; | |
4488 | goto out; | |
4489 | } | |
4490 | ||
7203425a | 4491 | crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); |
f453ba04 DA |
4492 | |
4493 | out: | |
84849903 | 4494 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
4495 | return ret; |
4496 | ||
4497 | } | |
4498 | ||
c8e32cc1 DV |
4499 | /** |
4500 | * drm_mode_gamma_get_ioctl - get the gamma table | |
4501 | * @dev: DRM device | |
4502 | * @data: ioctl data | |
4503 | * @file_priv: DRM file info | |
4504 | * | |
4505 | * Copy the current gamma table into the storage provided. This also provides | |
4506 | * the gamma table size the driver expects, which can be used to size the | |
4507 | * allocated storage. | |
4508 | * | |
4509 | * Called by the user via ioctl. | |
4510 | * | |
4511 | * Returns: | |
4512 | * Zero on success, errno on failure. | |
4513 | */ | |
f453ba04 DA |
4514 | int drm_mode_gamma_get_ioctl(struct drm_device *dev, |
4515 | void *data, struct drm_file *file_priv) | |
4516 | { | |
4517 | struct drm_mode_crtc_lut *crtc_lut = data; | |
f453ba04 DA |
4518 | struct drm_crtc *crtc; |
4519 | void *r_base, *g_base, *b_base; | |
4520 | int size; | |
4521 | int ret = 0; | |
4522 | ||
fb3b06c8 DA |
4523 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
4524 | return -EINVAL; | |
4525 | ||
84849903 | 4526 | drm_modeset_lock_all(dev); |
a2b34e22 RC |
4527 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
4528 | if (!crtc) { | |
f27657f2 | 4529 | ret = -ENOENT; |
f453ba04 DA |
4530 | goto out; |
4531 | } | |
f453ba04 DA |
4532 | |
4533 | /* memcpy into gamma store */ | |
4534 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
4535 | ret = -EINVAL; | |
4536 | goto out; | |
4537 | } | |
4538 | ||
4539 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
4540 | r_base = crtc->gamma_store; | |
4541 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { | |
4542 | ret = -EFAULT; | |
4543 | goto out; | |
4544 | } | |
4545 | ||
4546 | g_base = r_base + size; | |
4547 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { | |
4548 | ret = -EFAULT; | |
4549 | goto out; | |
4550 | } | |
4551 | ||
4552 | b_base = g_base + size; | |
4553 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { | |
4554 | ret = -EFAULT; | |
4555 | goto out; | |
4556 | } | |
4557 | out: | |
84849903 | 4558 | drm_modeset_unlock_all(dev); |
f453ba04 DA |
4559 | return ret; |
4560 | } | |
d91d8a3f | 4561 | |
c8e32cc1 DV |
4562 | /** |
4563 | * drm_mode_page_flip_ioctl - schedule an asynchronous fb update | |
4564 | * @dev: DRM device | |
4565 | * @data: ioctl data | |
4566 | * @file_priv: DRM file info | |
4567 | * | |
4568 | * This schedules an asynchronous update on a given CRTC, called page flip. | |
4569 | * Optionally a drm event is generated to signal the completion of the event. | |
4570 | * Generic drivers cannot assume that a pageflip with changed framebuffer | |
4571 | * properties (including driver specific metadata like tiling layout) will work, | |
4572 | * but some drivers support e.g. pixel format changes through the pageflip | |
4573 | * ioctl. | |
4574 | * | |
4575 | * Called by the user via ioctl. | |
4576 | * | |
4577 | * Returns: | |
4578 | * Zero on success, errno on failure. | |
4579 | */ | |
d91d8a3f KH |
4580 | int drm_mode_page_flip_ioctl(struct drm_device *dev, |
4581 | void *data, struct drm_file *file_priv) | |
4582 | { | |
4583 | struct drm_mode_crtc_page_flip *page_flip = data; | |
d91d8a3f | 4584 | struct drm_crtc *crtc; |
3d30a59b | 4585 | struct drm_framebuffer *fb = NULL; |
d91d8a3f KH |
4586 | struct drm_pending_vblank_event *e = NULL; |
4587 | unsigned long flags; | |
4588 | int ret = -EINVAL; | |
4589 | ||
4590 | if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS || | |
4591 | page_flip->reserved != 0) | |
4592 | return -EINVAL; | |
4593 | ||
62f2104f KP |
4594 | if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip) |
4595 | return -EINVAL; | |
4596 | ||
a2b34e22 RC |
4597 | crtc = drm_crtc_find(dev, page_flip->crtc_id); |
4598 | if (!crtc) | |
f27657f2 | 4599 | return -ENOENT; |
d91d8a3f | 4600 | |
d059f652 | 4601 | drm_modeset_lock_crtc(crtc); |
f4510a27 | 4602 | if (crtc->primary->fb == NULL) { |
90c1efdd CW |
4603 | /* The framebuffer is currently unbound, presumably |
4604 | * due to a hotplug event, that userspace has not | |
4605 | * yet discovered. | |
4606 | */ | |
4607 | ret = -EBUSY; | |
4608 | goto out; | |
4609 | } | |
4610 | ||
d91d8a3f KH |
4611 | if (crtc->funcs->page_flip == NULL) |
4612 | goto out; | |
4613 | ||
786b99ed | 4614 | fb = drm_framebuffer_lookup(dev, page_flip->fb_id); |
37c4e705 VS |
4615 | if (!fb) { |
4616 | ret = -ENOENT; | |
d91d8a3f | 4617 | goto out; |
37c4e705 | 4618 | } |
d91d8a3f | 4619 | |
c11e9283 DL |
4620 | ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb); |
4621 | if (ret) | |
5f61bb42 | 4622 | goto out; |
5f61bb42 | 4623 | |
f4510a27 | 4624 | if (crtc->primary->fb->pixel_format != fb->pixel_format) { |
909d9cda LP |
4625 | DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n"); |
4626 | ret = -EINVAL; | |
4627 | goto out; | |
4628 | } | |
4629 | ||
d91d8a3f KH |
4630 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { |
4631 | ret = -ENOMEM; | |
4632 | spin_lock_irqsave(&dev->event_lock, flags); | |
4633 | if (file_priv->event_space < sizeof e->event) { | |
4634 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4635 | goto out; | |
4636 | } | |
4637 | file_priv->event_space -= sizeof e->event; | |
4638 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4639 | ||
4640 | e = kzalloc(sizeof *e, GFP_KERNEL); | |
4641 | if (e == NULL) { | |
4642 | spin_lock_irqsave(&dev->event_lock, flags); | |
4643 | file_priv->event_space += sizeof e->event; | |
4644 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4645 | goto out; | |
4646 | } | |
4647 | ||
7bd4d7be | 4648 | e->event.base.type = DRM_EVENT_FLIP_COMPLETE; |
d91d8a3f KH |
4649 | e->event.base.length = sizeof e->event; |
4650 | e->event.user_data = page_flip->user_data; | |
4651 | e->base.event = &e->event.base; | |
4652 | e->base.file_priv = file_priv; | |
4653 | e->base.destroy = | |
4654 | (void (*) (struct drm_pending_event *)) kfree; | |
4655 | } | |
4656 | ||
3d30a59b | 4657 | crtc->primary->old_fb = crtc->primary->fb; |
ed8d1975 | 4658 | ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags); |
d91d8a3f | 4659 | if (ret) { |
aef6a7ee JS |
4660 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { |
4661 | spin_lock_irqsave(&dev->event_lock, flags); | |
4662 | file_priv->event_space += sizeof e->event; | |
4663 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
4664 | kfree(e); | |
4665 | } | |
b0d12325 | 4666 | /* Keep the old fb, don't unref it. */ |
3d30a59b | 4667 | crtc->primary->old_fb = NULL; |
b0d12325 | 4668 | } else { |
8cf1e981 TR |
4669 | /* |
4670 | * Warn if the driver hasn't properly updated the crtc->fb | |
4671 | * field to reflect that the new framebuffer is now used. | |
4672 | * Failing to do so will screw with the reference counting | |
4673 | * on framebuffers. | |
4674 | */ | |
f4510a27 | 4675 | WARN_ON(crtc->primary->fb != fb); |
b0d12325 DV |
4676 | /* Unref only the old framebuffer. */ |
4677 | fb = NULL; | |
d91d8a3f KH |
4678 | } |
4679 | ||
4680 | out: | |
b0d12325 DV |
4681 | if (fb) |
4682 | drm_framebuffer_unreference(fb); | |
3d30a59b DV |
4683 | if (crtc->primary->old_fb) |
4684 | drm_framebuffer_unreference(crtc->primary->old_fb); | |
4685 | crtc->primary->old_fb = NULL; | |
d059f652 | 4686 | drm_modeset_unlock_crtc(crtc); |
b4d5e7d1 | 4687 | |
d91d8a3f KH |
4688 | return ret; |
4689 | } | |
eb033556 | 4690 | |
c8e32cc1 DV |
4691 | /** |
4692 | * drm_mode_config_reset - call ->reset callbacks | |
4693 | * @dev: drm device | |
4694 | * | |
4695 | * This functions calls all the crtc's, encoder's and connector's ->reset | |
4696 | * callback. Drivers can use this in e.g. their driver load or resume code to | |
4697 | * reset hardware and software state. | |
4698 | */ | |
eb033556 CW |
4699 | void drm_mode_config_reset(struct drm_device *dev) |
4700 | { | |
4701 | struct drm_crtc *crtc; | |
2a0d7cfd | 4702 | struct drm_plane *plane; |
eb033556 CW |
4703 | struct drm_encoder *encoder; |
4704 | struct drm_connector *connector; | |
4705 | ||
2a0d7cfd DV |
4706 | list_for_each_entry(plane, &dev->mode_config.plane_list, head) |
4707 | if (plane->funcs->reset) | |
4708 | plane->funcs->reset(plane); | |
4709 | ||
eb033556 CW |
4710 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) |
4711 | if (crtc->funcs->reset) | |
4712 | crtc->funcs->reset(crtc); | |
4713 | ||
4714 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) | |
4715 | if (encoder->funcs->reset) | |
4716 | encoder->funcs->reset(encoder); | |
4717 | ||
5e2cb2f6 DV |
4718 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
4719 | connector->status = connector_status_unknown; | |
4720 | ||
eb033556 CW |
4721 | if (connector->funcs->reset) |
4722 | connector->funcs->reset(connector); | |
5e2cb2f6 | 4723 | } |
eb033556 CW |
4724 | } |
4725 | EXPORT_SYMBOL(drm_mode_config_reset); | |
ff72145b | 4726 | |
c8e32cc1 DV |
4727 | /** |
4728 | * drm_mode_create_dumb_ioctl - create a dumb backing storage buffer | |
4729 | * @dev: DRM device | |
4730 | * @data: ioctl data | |
4731 | * @file_priv: DRM file info | |
4732 | * | |
4733 | * This creates a new dumb buffer in the driver's backing storage manager (GEM, | |
4734 | * TTM or something else entirely) and returns the resulting buffer handle. This | |
4735 | * handle can then be wrapped up into a framebuffer modeset object. | |
4736 | * | |
4737 | * Note that userspace is not allowed to use such objects for render | |
4738 | * acceleration - drivers must create their own private ioctls for such a use | |
4739 | * case. | |
4740 | * | |
4741 | * Called by the user via ioctl. | |
4742 | * | |
4743 | * Returns: | |
4744 | * Zero on success, errno on failure. | |
4745 | */ | |
ff72145b DA |
4746 | int drm_mode_create_dumb_ioctl(struct drm_device *dev, |
4747 | void *data, struct drm_file *file_priv) | |
4748 | { | |
4749 | struct drm_mode_create_dumb *args = data; | |
b28cd41f | 4750 | u32 cpp, stride, size; |
ff72145b DA |
4751 | |
4752 | if (!dev->driver->dumb_create) | |
4753 | return -ENOSYS; | |
b28cd41f DH |
4754 | if (!args->width || !args->height || !args->bpp) |
4755 | return -EINVAL; | |
4756 | ||
4757 | /* overflow checks for 32bit size calculations */ | |
00e72089 | 4758 | /* NOTE: DIV_ROUND_UP() can overflow */ |
b28cd41f | 4759 | cpp = DIV_ROUND_UP(args->bpp, 8); |
00e72089 | 4760 | if (!cpp || cpp > 0xffffffffU / args->width) |
b28cd41f DH |
4761 | return -EINVAL; |
4762 | stride = cpp * args->width; | |
4763 | if (args->height > 0xffffffffU / stride) | |
4764 | return -EINVAL; | |
4765 | ||
4766 | /* test for wrap-around */ | |
4767 | size = args->height * stride; | |
4768 | if (PAGE_ALIGN(size) == 0) | |
4769 | return -EINVAL; | |
4770 | ||
ff72145b DA |
4771 | return dev->driver->dumb_create(file_priv, dev, args); |
4772 | } | |
4773 | ||
c8e32cc1 DV |
4774 | /** |
4775 | * drm_mode_mmap_dumb_ioctl - create an mmap offset for a dumb backing storage buffer | |
4776 | * @dev: DRM device | |
4777 | * @data: ioctl data | |
4778 | * @file_priv: DRM file info | |
4779 | * | |
4780 | * Allocate an offset in the drm device node's address space to be able to | |
4781 | * memory map a dumb buffer. | |
4782 | * | |
4783 | * Called by the user via ioctl. | |
4784 | * | |
4785 | * Returns: | |
4786 | * Zero on success, errno on failure. | |
4787 | */ | |
ff72145b DA |
4788 | int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, |
4789 | void *data, struct drm_file *file_priv) | |
4790 | { | |
4791 | struct drm_mode_map_dumb *args = data; | |
4792 | ||
4793 | /* call driver ioctl to get mmap offset */ | |
4794 | if (!dev->driver->dumb_map_offset) | |
4795 | return -ENOSYS; | |
4796 | ||
4797 | return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); | |
4798 | } | |
4799 | ||
c8e32cc1 DV |
4800 | /** |
4801 | * drm_mode_destroy_dumb_ioctl - destroy a dumb backing strage buffer | |
4802 | * @dev: DRM device | |
4803 | * @data: ioctl data | |
4804 | * @file_priv: DRM file info | |
4805 | * | |
4806 | * This destroys the userspace handle for the given dumb backing storage buffer. | |
4807 | * Since buffer objects must be reference counted in the kernel a buffer object | |
4808 | * won't be immediately freed if a framebuffer modeset object still uses it. | |
4809 | * | |
4810 | * Called by the user via ioctl. | |
4811 | * | |
4812 | * Returns: | |
4813 | * Zero on success, errno on failure. | |
4814 | */ | |
ff72145b DA |
4815 | int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, |
4816 | void *data, struct drm_file *file_priv) | |
4817 | { | |
4818 | struct drm_mode_destroy_dumb *args = data; | |
4819 | ||
4820 | if (!dev->driver->dumb_destroy) | |
4821 | return -ENOSYS; | |
4822 | ||
4823 | return dev->driver->dumb_destroy(file_priv, dev, args->handle); | |
4824 | } | |
248dbc23 | 4825 | |
c8e32cc1 DV |
4826 | /** |
4827 | * drm_fb_get_bpp_depth - get the bpp/depth values for format | |
4828 | * @format: pixel format (DRM_FORMAT_*) | |
4829 | * @depth: storage for the depth value | |
4830 | * @bpp: storage for the bpp value | |
4831 | * | |
4832 | * This only supports RGB formats here for compat with code that doesn't use | |
4833 | * pixel formats directly yet. | |
248dbc23 DA |
4834 | */ |
4835 | void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, | |
4836 | int *bpp) | |
4837 | { | |
4838 | switch (format) { | |
c51a6bc5 | 4839 | case DRM_FORMAT_C8: |
04b3924d VS |
4840 | case DRM_FORMAT_RGB332: |
4841 | case DRM_FORMAT_BGR233: | |
248dbc23 DA |
4842 | *depth = 8; |
4843 | *bpp = 8; | |
4844 | break; | |
04b3924d VS |
4845 | case DRM_FORMAT_XRGB1555: |
4846 | case DRM_FORMAT_XBGR1555: | |
4847 | case DRM_FORMAT_RGBX5551: | |
4848 | case DRM_FORMAT_BGRX5551: | |
4849 | case DRM_FORMAT_ARGB1555: | |
4850 | case DRM_FORMAT_ABGR1555: | |
4851 | case DRM_FORMAT_RGBA5551: | |
4852 | case DRM_FORMAT_BGRA5551: | |
248dbc23 DA |
4853 | *depth = 15; |
4854 | *bpp = 16; | |
4855 | break; | |
04b3924d VS |
4856 | case DRM_FORMAT_RGB565: |
4857 | case DRM_FORMAT_BGR565: | |
248dbc23 DA |
4858 | *depth = 16; |
4859 | *bpp = 16; | |
4860 | break; | |
04b3924d VS |
4861 | case DRM_FORMAT_RGB888: |
4862 | case DRM_FORMAT_BGR888: | |
4863 | *depth = 24; | |
4864 | *bpp = 24; | |
4865 | break; | |
4866 | case DRM_FORMAT_XRGB8888: | |
4867 | case DRM_FORMAT_XBGR8888: | |
4868 | case DRM_FORMAT_RGBX8888: | |
4869 | case DRM_FORMAT_BGRX8888: | |
248dbc23 DA |
4870 | *depth = 24; |
4871 | *bpp = 32; | |
4872 | break; | |
04b3924d VS |
4873 | case DRM_FORMAT_XRGB2101010: |
4874 | case DRM_FORMAT_XBGR2101010: | |
4875 | case DRM_FORMAT_RGBX1010102: | |
4876 | case DRM_FORMAT_BGRX1010102: | |
4877 | case DRM_FORMAT_ARGB2101010: | |
4878 | case DRM_FORMAT_ABGR2101010: | |
4879 | case DRM_FORMAT_RGBA1010102: | |
4880 | case DRM_FORMAT_BGRA1010102: | |
248dbc23 DA |
4881 | *depth = 30; |
4882 | *bpp = 32; | |
4883 | break; | |
04b3924d VS |
4884 | case DRM_FORMAT_ARGB8888: |
4885 | case DRM_FORMAT_ABGR8888: | |
4886 | case DRM_FORMAT_RGBA8888: | |
4887 | case DRM_FORMAT_BGRA8888: | |
248dbc23 DA |
4888 | *depth = 32; |
4889 | *bpp = 32; | |
4890 | break; | |
4891 | default: | |
23c453a4 VS |
4892 | DRM_DEBUG_KMS("unsupported pixel format %s\n", |
4893 | drm_get_format_name(format)); | |
248dbc23 DA |
4894 | *depth = 0; |
4895 | *bpp = 0; | |
4896 | break; | |
4897 | } | |
4898 | } | |
4899 | EXPORT_SYMBOL(drm_fb_get_bpp_depth); | |
141670e9 VS |
4900 | |
4901 | /** | |
4902 | * drm_format_num_planes - get the number of planes for format | |
4903 | * @format: pixel format (DRM_FORMAT_*) | |
4904 | * | |
c8e32cc1 | 4905 | * Returns: |
141670e9 VS |
4906 | * The number of planes used by the specified pixel format. |
4907 | */ | |
4908 | int drm_format_num_planes(uint32_t format) | |
4909 | { | |
4910 | switch (format) { | |
4911 | case DRM_FORMAT_YUV410: | |
4912 | case DRM_FORMAT_YVU410: | |
4913 | case DRM_FORMAT_YUV411: | |
4914 | case DRM_FORMAT_YVU411: | |
4915 | case DRM_FORMAT_YUV420: | |
4916 | case DRM_FORMAT_YVU420: | |
4917 | case DRM_FORMAT_YUV422: | |
4918 | case DRM_FORMAT_YVU422: | |
4919 | case DRM_FORMAT_YUV444: | |
4920 | case DRM_FORMAT_YVU444: | |
4921 | return 3; | |
4922 | case DRM_FORMAT_NV12: | |
4923 | case DRM_FORMAT_NV21: | |
4924 | case DRM_FORMAT_NV16: | |
4925 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
4926 | case DRM_FORMAT_NV24: |
4927 | case DRM_FORMAT_NV42: | |
141670e9 VS |
4928 | return 2; |
4929 | default: | |
4930 | return 1; | |
4931 | } | |
4932 | } | |
4933 | EXPORT_SYMBOL(drm_format_num_planes); | |
5a86bd55 VS |
4934 | |
4935 | /** | |
4936 | * drm_format_plane_cpp - determine the bytes per pixel value | |
4937 | * @format: pixel format (DRM_FORMAT_*) | |
4938 | * @plane: plane index | |
4939 | * | |
c8e32cc1 | 4940 | * Returns: |
5a86bd55 VS |
4941 | * The bytes per pixel value for the specified plane. |
4942 | */ | |
4943 | int drm_format_plane_cpp(uint32_t format, int plane) | |
4944 | { | |
4945 | unsigned int depth; | |
4946 | int bpp; | |
4947 | ||
4948 | if (plane >= drm_format_num_planes(format)) | |
4949 | return 0; | |
4950 | ||
4951 | switch (format) { | |
4952 | case DRM_FORMAT_YUYV: | |
4953 | case DRM_FORMAT_YVYU: | |
4954 | case DRM_FORMAT_UYVY: | |
4955 | case DRM_FORMAT_VYUY: | |
4956 | return 2; | |
4957 | case DRM_FORMAT_NV12: | |
4958 | case DRM_FORMAT_NV21: | |
4959 | case DRM_FORMAT_NV16: | |
4960 | case DRM_FORMAT_NV61: | |
ba623f6a LP |
4961 | case DRM_FORMAT_NV24: |
4962 | case DRM_FORMAT_NV42: | |
5a86bd55 VS |
4963 | return plane ? 2 : 1; |
4964 | case DRM_FORMAT_YUV410: | |
4965 | case DRM_FORMAT_YVU410: | |
4966 | case DRM_FORMAT_YUV411: | |
4967 | case DRM_FORMAT_YVU411: | |
4968 | case DRM_FORMAT_YUV420: | |
4969 | case DRM_FORMAT_YVU420: | |
4970 | case DRM_FORMAT_YUV422: | |
4971 | case DRM_FORMAT_YVU422: | |
4972 | case DRM_FORMAT_YUV444: | |
4973 | case DRM_FORMAT_YVU444: | |
4974 | return 1; | |
4975 | default: | |
4976 | drm_fb_get_bpp_depth(format, &depth, &bpp); | |
4977 | return bpp >> 3; | |
4978 | } | |
4979 | } | |
4980 | EXPORT_SYMBOL(drm_format_plane_cpp); | |
01b68b04 VS |
4981 | |
4982 | /** | |
4983 | * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor | |
4984 | * @format: pixel format (DRM_FORMAT_*) | |
4985 | * | |
c8e32cc1 | 4986 | * Returns: |
01b68b04 VS |
4987 | * The horizontal chroma subsampling factor for the |
4988 | * specified pixel format. | |
4989 | */ | |
4990 | int drm_format_horz_chroma_subsampling(uint32_t format) | |
4991 | { | |
4992 | switch (format) { | |
4993 | case DRM_FORMAT_YUV411: | |
4994 | case DRM_FORMAT_YVU411: | |
4995 | case DRM_FORMAT_YUV410: | |
4996 | case DRM_FORMAT_YVU410: | |
4997 | return 4; | |
4998 | case DRM_FORMAT_YUYV: | |
4999 | case DRM_FORMAT_YVYU: | |
5000 | case DRM_FORMAT_UYVY: | |
5001 | case DRM_FORMAT_VYUY: | |
5002 | case DRM_FORMAT_NV12: | |
5003 | case DRM_FORMAT_NV21: | |
5004 | case DRM_FORMAT_NV16: | |
5005 | case DRM_FORMAT_NV61: | |
5006 | case DRM_FORMAT_YUV422: | |
5007 | case DRM_FORMAT_YVU422: | |
5008 | case DRM_FORMAT_YUV420: | |
5009 | case DRM_FORMAT_YVU420: | |
5010 | return 2; | |
5011 | default: | |
5012 | return 1; | |
5013 | } | |
5014 | } | |
5015 | EXPORT_SYMBOL(drm_format_horz_chroma_subsampling); | |
5016 | ||
5017 | /** | |
5018 | * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor | |
5019 | * @format: pixel format (DRM_FORMAT_*) | |
5020 | * | |
c8e32cc1 | 5021 | * Returns: |
01b68b04 VS |
5022 | * The vertical chroma subsampling factor for the |
5023 | * specified pixel format. | |
5024 | */ | |
5025 | int drm_format_vert_chroma_subsampling(uint32_t format) | |
5026 | { | |
5027 | switch (format) { | |
5028 | case DRM_FORMAT_YUV410: | |
5029 | case DRM_FORMAT_YVU410: | |
5030 | return 4; | |
5031 | case DRM_FORMAT_YUV420: | |
5032 | case DRM_FORMAT_YVU420: | |
5033 | case DRM_FORMAT_NV12: | |
5034 | case DRM_FORMAT_NV21: | |
5035 | return 2; | |
5036 | default: | |
5037 | return 1; | |
5038 | } | |
5039 | } | |
5040 | EXPORT_SYMBOL(drm_format_vert_chroma_subsampling); | |
87d24fc3 | 5041 | |
3c9855f6 VS |
5042 | /** |
5043 | * drm_rotation_simplify() - Try to simplify the rotation | |
5044 | * @rotation: Rotation to be simplified | |
5045 | * @supported_rotations: Supported rotations | |
5046 | * | |
5047 | * Attempt to simplify the rotation to a form that is supported. | |
5048 | * Eg. if the hardware supports everything except DRM_REFLECT_X | |
5049 | * one could call this function like this: | |
5050 | * | |
5051 | * drm_rotation_simplify(rotation, BIT(DRM_ROTATE_0) | | |
5052 | * BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_180) | | |
5053 | * BIT(DRM_ROTATE_270) | BIT(DRM_REFLECT_Y)); | |
5054 | * | |
5055 | * to eliminate the DRM_ROTATE_X flag. Depending on what kind of | |
5056 | * transforms the hardware supports, this function may not | |
5057 | * be able to produce a supported transform, so the caller should | |
5058 | * check the result afterwards. | |
5059 | */ | |
5060 | unsigned int drm_rotation_simplify(unsigned int rotation, | |
5061 | unsigned int supported_rotations) | |
5062 | { | |
5063 | if (rotation & ~supported_rotations) { | |
5064 | rotation ^= BIT(DRM_REFLECT_X) | BIT(DRM_REFLECT_Y); | |
5065 | rotation = (rotation & ~0xf) | BIT((ffs(rotation & 0xf) + 1) % 4); | |
5066 | } | |
5067 | ||
5068 | return rotation; | |
5069 | } | |
5070 | EXPORT_SYMBOL(drm_rotation_simplify); | |
5071 | ||
87d24fc3 LP |
5072 | /** |
5073 | * drm_mode_config_init - initialize DRM mode_configuration structure | |
5074 | * @dev: DRM device | |
5075 | * | |
5076 | * Initialize @dev's mode_config structure, used for tracking the graphics | |
5077 | * configuration of @dev. | |
5078 | * | |
5079 | * Since this initializes the modeset locks, no locking is possible. Which is no | |
5080 | * problem, since this should happen single threaded at init time. It is the | |
5081 | * driver's problem to ensure this guarantee. | |
5082 | * | |
5083 | */ | |
5084 | void drm_mode_config_init(struct drm_device *dev) | |
5085 | { | |
5086 | mutex_init(&dev->mode_config.mutex); | |
51fd371b | 5087 | drm_modeset_lock_init(&dev->mode_config.connection_mutex); |
87d24fc3 LP |
5088 | mutex_init(&dev->mode_config.idr_mutex); |
5089 | mutex_init(&dev->mode_config.fb_lock); | |
5090 | INIT_LIST_HEAD(&dev->mode_config.fb_list); | |
5091 | INIT_LIST_HEAD(&dev->mode_config.crtc_list); | |
5092 | INIT_LIST_HEAD(&dev->mode_config.connector_list); | |
3b336ec4 | 5093 | INIT_LIST_HEAD(&dev->mode_config.bridge_list); |
87d24fc3 LP |
5094 | INIT_LIST_HEAD(&dev->mode_config.encoder_list); |
5095 | INIT_LIST_HEAD(&dev->mode_config.property_list); | |
5096 | INIT_LIST_HEAD(&dev->mode_config.property_blob_list); | |
5097 | INIT_LIST_HEAD(&dev->mode_config.plane_list); | |
5098 | idr_init(&dev->mode_config.crtc_idr); | |
5099 | ||
5100 | drm_modeset_lock_all(dev); | |
5101 | drm_mode_create_standard_connector_properties(dev); | |
9922ab5a | 5102 | drm_mode_create_standard_plane_properties(dev); |
87d24fc3 LP |
5103 | drm_modeset_unlock_all(dev); |
5104 | ||
5105 | /* Just to be sure */ | |
5106 | dev->mode_config.num_fb = 0; | |
5107 | dev->mode_config.num_connector = 0; | |
5108 | dev->mode_config.num_crtc = 0; | |
5109 | dev->mode_config.num_encoder = 0; | |
e27dde3e MR |
5110 | dev->mode_config.num_overlay_plane = 0; |
5111 | dev->mode_config.num_total_plane = 0; | |
87d24fc3 LP |
5112 | } |
5113 | EXPORT_SYMBOL(drm_mode_config_init); | |
5114 | ||
5115 | /** | |
5116 | * drm_mode_config_cleanup - free up DRM mode_config info | |
5117 | * @dev: DRM device | |
5118 | * | |
5119 | * Free up all the connectors and CRTCs associated with this DRM device, then | |
5120 | * free up the framebuffers and associated buffer objects. | |
5121 | * | |
5122 | * Note that since this /should/ happen single-threaded at driver/device | |
5123 | * teardown time, no locking is required. It's the driver's job to ensure that | |
5124 | * this guarantee actually holds true. | |
5125 | * | |
5126 | * FIXME: cleanup any dangling user buffer objects too | |
5127 | */ | |
5128 | void drm_mode_config_cleanup(struct drm_device *dev) | |
5129 | { | |
5130 | struct drm_connector *connector, *ot; | |
5131 | struct drm_crtc *crtc, *ct; | |
5132 | struct drm_encoder *encoder, *enct; | |
3b336ec4 | 5133 | struct drm_bridge *bridge, *brt; |
87d24fc3 LP |
5134 | struct drm_framebuffer *fb, *fbt; |
5135 | struct drm_property *property, *pt; | |
5136 | struct drm_property_blob *blob, *bt; | |
5137 | struct drm_plane *plane, *plt; | |
5138 | ||
5139 | list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, | |
5140 | head) { | |
5141 | encoder->funcs->destroy(encoder); | |
5142 | } | |
5143 | ||
3b336ec4 SP |
5144 | list_for_each_entry_safe(bridge, brt, |
5145 | &dev->mode_config.bridge_list, head) { | |
5146 | bridge->funcs->destroy(bridge); | |
5147 | } | |
5148 | ||
87d24fc3 LP |
5149 | list_for_each_entry_safe(connector, ot, |
5150 | &dev->mode_config.connector_list, head) { | |
5151 | connector->funcs->destroy(connector); | |
5152 | } | |
5153 | ||
5154 | list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, | |
5155 | head) { | |
5156 | drm_property_destroy(dev, property); | |
5157 | } | |
5158 | ||
5159 | list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list, | |
5160 | head) { | |
5161 | drm_property_destroy_blob(dev, blob); | |
5162 | } | |
5163 | ||
5164 | /* | |
5165 | * Single-threaded teardown context, so it's not required to grab the | |
5166 | * fb_lock to protect against concurrent fb_list access. Contrary, it | |
5167 | * would actually deadlock with the drm_framebuffer_cleanup function. | |
5168 | * | |
5169 | * Also, if there are any framebuffers left, that's a driver leak now, | |
5170 | * so politely WARN about this. | |
5171 | */ | |
5172 | WARN_ON(!list_empty(&dev->mode_config.fb_list)); | |
5173 | list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { | |
5174 | drm_framebuffer_remove(fb); | |
5175 | } | |
5176 | ||
5177 | list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, | |
5178 | head) { | |
5179 | plane->funcs->destroy(plane); | |
5180 | } | |
5181 | ||
5182 | list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { | |
5183 | crtc->funcs->destroy(crtc); | |
5184 | } | |
5185 | ||
5186 | idr_destroy(&dev->mode_config.crtc_idr); | |
51fd371b | 5187 | drm_modeset_lock_fini(&dev->mode_config.connection_mutex); |
87d24fc3 LP |
5188 | } |
5189 | EXPORT_SYMBOL(drm_mode_config_cleanup); | |
c1df5f3c VS |
5190 | |
5191 | struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev, | |
5192 | unsigned int supported_rotations) | |
5193 | { | |
5194 | static const struct drm_prop_enum_list props[] = { | |
5195 | { DRM_ROTATE_0, "rotate-0" }, | |
5196 | { DRM_ROTATE_90, "rotate-90" }, | |
5197 | { DRM_ROTATE_180, "rotate-180" }, | |
5198 | { DRM_ROTATE_270, "rotate-270" }, | |
5199 | { DRM_REFLECT_X, "reflect-x" }, | |
5200 | { DRM_REFLECT_Y, "reflect-y" }, | |
5201 | }; | |
5202 | ||
5203 | return drm_property_create_bitmask(dev, 0, "rotation", | |
5204 | props, ARRAY_SIZE(props), | |
5205 | supported_rotations); | |
5206 | } | |
5207 | EXPORT_SYMBOL(drm_mode_create_rotation_property); |