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f453ba04 DA |
1 | /* |
2 | * Copyright (c) 2006-2008 Intel Corporation | |
3 | * Copyright (c) 2007 Dave Airlie <airlied@linux.ie> | |
4 | * Copyright (c) 2008 Red Hat Inc. | |
5 | * | |
6 | * DRM core CRTC related functions | |
7 | * | |
8 | * Permission to use, copy, modify, distribute, and sell this software and its | |
9 | * documentation for any purpose is hereby granted without fee, provided that | |
10 | * the above copyright notice appear in all copies and that both that copyright | |
11 | * notice and this permission notice appear in supporting documentation, and | |
12 | * that the name of the copyright holders not be used in advertising or | |
13 | * publicity pertaining to distribution of the software without specific, | |
14 | * written prior permission. The copyright holders make no representations | |
15 | * about the suitability of this software for any purpose. It is provided "as | |
16 | * is" without express or implied warranty. | |
17 | * | |
18 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, | |
19 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO | |
20 | * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR | |
21 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, | |
22 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER | |
23 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE | |
24 | * OF THIS SOFTWARE. | |
25 | * | |
26 | * Authors: | |
27 | * Keith Packard | |
28 | * Eric Anholt <eric@anholt.net> | |
29 | * Dave Airlie <airlied@linux.ie> | |
30 | * Jesse Barnes <jesse.barnes@intel.com> | |
31 | */ | |
32 | #include <linux/list.h> | |
33 | #include "drm.h" | |
34 | #include "drmP.h" | |
35 | #include "drm_crtc.h" | |
36 | ||
37 | struct drm_prop_enum_list { | |
38 | int type; | |
39 | char *name; | |
40 | }; | |
41 | ||
42 | /* Avoid boilerplate. I'm tired of typing. */ | |
43 | #define DRM_ENUM_NAME_FN(fnname, list) \ | |
44 | char *fnname(int val) \ | |
45 | { \ | |
46 | int i; \ | |
47 | for (i = 0; i < ARRAY_SIZE(list); i++) { \ | |
48 | if (list[i].type == val) \ | |
49 | return list[i].name; \ | |
50 | } \ | |
51 | return "(unknown)"; \ | |
52 | } | |
53 | ||
54 | /* | |
55 | * Global properties | |
56 | */ | |
57 | static struct drm_prop_enum_list drm_dpms_enum_list[] = | |
58 | { { DRM_MODE_DPMS_ON, "On" }, | |
59 | { DRM_MODE_DPMS_STANDBY, "Standby" }, | |
60 | { DRM_MODE_DPMS_SUSPEND, "Suspend" }, | |
61 | { DRM_MODE_DPMS_OFF, "Off" } | |
62 | }; | |
63 | ||
64 | DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list) | |
65 | ||
66 | /* | |
67 | * Optional properties | |
68 | */ | |
69 | static struct drm_prop_enum_list drm_scaling_mode_enum_list[] = | |
70 | { | |
71 | { DRM_MODE_SCALE_NON_GPU, "Non-GPU" }, | |
72 | { DRM_MODE_SCALE_FULLSCREEN, "Fullscreen" }, | |
73 | { DRM_MODE_SCALE_NO_SCALE, "No scale" }, | |
74 | { DRM_MODE_SCALE_ASPECT, "Aspect" }, | |
75 | }; | |
76 | ||
77 | static struct drm_prop_enum_list drm_dithering_mode_enum_list[] = | |
78 | { | |
79 | { DRM_MODE_DITHERING_OFF, "Off" }, | |
80 | { DRM_MODE_DITHERING_ON, "On" }, | |
81 | }; | |
82 | ||
83 | /* | |
84 | * Non-global properties, but "required" for certain connectors. | |
85 | */ | |
86 | static struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = | |
87 | { | |
88 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ | |
89 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
90 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
91 | }; | |
92 | ||
93 | DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list) | |
94 | ||
95 | static struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = | |
96 | { | |
97 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ | |
98 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ | |
99 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ | |
100 | }; | |
101 | ||
102 | DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name, | |
103 | drm_dvi_i_subconnector_enum_list) | |
104 | ||
105 | static struct drm_prop_enum_list drm_tv_select_enum_list[] = | |
106 | { | |
107 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ | |
108 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
109 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
110 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 111 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
112 | }; |
113 | ||
114 | DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list) | |
115 | ||
116 | static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = | |
117 | { | |
118 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ | |
119 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ | |
120 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ | |
121 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ | |
aeaa1ad3 | 122 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
f453ba04 DA |
123 | }; |
124 | ||
125 | DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, | |
126 | drm_tv_subconnector_enum_list) | |
127 | ||
128 | struct drm_conn_prop_enum_list { | |
129 | int type; | |
130 | char *name; | |
131 | int count; | |
132 | }; | |
133 | ||
134 | /* | |
135 | * Connector and encoder types. | |
136 | */ | |
137 | static struct drm_conn_prop_enum_list drm_connector_enum_list[] = | |
138 | { { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 }, | |
139 | { DRM_MODE_CONNECTOR_VGA, "VGA", 0 }, | |
140 | { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 }, | |
141 | { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 }, | |
142 | { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 }, | |
143 | { DRM_MODE_CONNECTOR_Composite, "Composite", 0 }, | |
144 | { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 }, | |
145 | { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 }, | |
146 | { DRM_MODE_CONNECTOR_Component, "Component", 0 }, | |
147 | { DRM_MODE_CONNECTOR_9PinDIN, "9-pin DIN", 0 }, | |
148 | { DRM_MODE_CONNECTOR_DisplayPort, "DisplayPort", 0 }, | |
149 | { DRM_MODE_CONNECTOR_HDMIA, "HDMI Type A", 0 }, | |
150 | { DRM_MODE_CONNECTOR_HDMIB, "HDMI Type B", 0 }, | |
74bd3c26 | 151 | { DRM_MODE_CONNECTOR_TV, "TV", 0 }, |
f453ba04 DA |
152 | }; |
153 | ||
154 | static struct drm_prop_enum_list drm_encoder_enum_list[] = | |
155 | { { DRM_MODE_ENCODER_NONE, "None" }, | |
156 | { DRM_MODE_ENCODER_DAC, "DAC" }, | |
157 | { DRM_MODE_ENCODER_TMDS, "TMDS" }, | |
158 | { DRM_MODE_ENCODER_LVDS, "LVDS" }, | |
159 | { DRM_MODE_ENCODER_TVDAC, "TV" }, | |
160 | }; | |
161 | ||
162 | char *drm_get_encoder_name(struct drm_encoder *encoder) | |
163 | { | |
164 | static char buf[32]; | |
165 | ||
166 | snprintf(buf, 32, "%s-%d", | |
167 | drm_encoder_enum_list[encoder->encoder_type].name, | |
168 | encoder->base.id); | |
169 | return buf; | |
170 | } | |
171 | ||
172 | char *drm_get_connector_name(struct drm_connector *connector) | |
173 | { | |
174 | static char buf[32]; | |
175 | ||
176 | snprintf(buf, 32, "%s-%d", | |
177 | drm_connector_enum_list[connector->connector_type].name, | |
178 | connector->connector_type_id); | |
179 | return buf; | |
180 | } | |
181 | EXPORT_SYMBOL(drm_get_connector_name); | |
182 | ||
183 | char *drm_get_connector_status_name(enum drm_connector_status status) | |
184 | { | |
185 | if (status == connector_status_connected) | |
186 | return "connected"; | |
187 | else if (status == connector_status_disconnected) | |
188 | return "disconnected"; | |
189 | else | |
190 | return "unknown"; | |
191 | } | |
192 | ||
193 | /** | |
194 | * drm_mode_object_get - allocate a new identifier | |
195 | * @dev: DRM device | |
196 | * @ptr: object pointer, used to generate unique ID | |
197 | * @type: object type | |
198 | * | |
199 | * LOCKING: | |
f453ba04 DA |
200 | * |
201 | * Create a unique identifier based on @ptr in @dev's identifier space. Used | |
202 | * for tracking modes, CRTCs and connectors. | |
203 | * | |
204 | * RETURNS: | |
205 | * New unique (relative to other objects in @dev) integer identifier for the | |
206 | * object. | |
207 | */ | |
208 | static int drm_mode_object_get(struct drm_device *dev, | |
209 | struct drm_mode_object *obj, uint32_t obj_type) | |
210 | { | |
211 | int new_id = 0; | |
212 | int ret; | |
213 | ||
f453ba04 DA |
214 | again: |
215 | if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) { | |
216 | DRM_ERROR("Ran out memory getting a mode number\n"); | |
217 | return -EINVAL; | |
218 | } | |
219 | ||
ad2563c2 | 220 | mutex_lock(&dev->mode_config.idr_mutex); |
f453ba04 | 221 | ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id); |
ad2563c2 | 222 | mutex_unlock(&dev->mode_config.idr_mutex); |
f453ba04 DA |
223 | if (ret == -EAGAIN) |
224 | goto again; | |
225 | ||
226 | obj->id = new_id; | |
227 | obj->type = obj_type; | |
228 | return 0; | |
229 | } | |
230 | ||
231 | /** | |
232 | * drm_mode_object_put - free an identifer | |
233 | * @dev: DRM device | |
234 | * @id: ID to free | |
235 | * | |
236 | * LOCKING: | |
237 | * Caller must hold DRM mode_config lock. | |
238 | * | |
239 | * Free @id from @dev's unique identifier pool. | |
240 | */ | |
241 | static void drm_mode_object_put(struct drm_device *dev, | |
242 | struct drm_mode_object *object) | |
243 | { | |
ad2563c2 | 244 | mutex_lock(&dev->mode_config.idr_mutex); |
f453ba04 | 245 | idr_remove(&dev->mode_config.crtc_idr, object->id); |
ad2563c2 | 246 | mutex_unlock(&dev->mode_config.idr_mutex); |
f453ba04 DA |
247 | } |
248 | ||
249 | void *drm_mode_object_find(struct drm_device *dev, uint32_t id, uint32_t type) | |
250 | { | |
ad2563c2 | 251 | struct drm_mode_object *obj = NULL; |
f453ba04 | 252 | |
ad2563c2 | 253 | mutex_lock(&dev->mode_config.idr_mutex); |
f453ba04 DA |
254 | obj = idr_find(&dev->mode_config.crtc_idr, id); |
255 | if (!obj || (obj->type != type) || (obj->id != id)) | |
ad2563c2 JB |
256 | obj = NULL; |
257 | mutex_unlock(&dev->mode_config.idr_mutex); | |
f453ba04 DA |
258 | |
259 | return obj; | |
260 | } | |
261 | EXPORT_SYMBOL(drm_mode_object_find); | |
262 | ||
263 | /** | |
264 | * drm_crtc_from_fb - find the CRTC structure associated with an fb | |
265 | * @dev: DRM device | |
266 | * @fb: framebuffer in question | |
267 | * | |
268 | * LOCKING: | |
269 | * Caller must hold mode_config lock. | |
270 | * | |
271 | * Find CRTC in the mode_config structure that matches @fb. | |
272 | * | |
273 | * RETURNS: | |
274 | * Pointer to the CRTC or NULL if it wasn't found. | |
275 | */ | |
276 | struct drm_crtc *drm_crtc_from_fb(struct drm_device *dev, | |
277 | struct drm_framebuffer *fb) | |
278 | { | |
279 | struct drm_crtc *crtc; | |
280 | ||
281 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
282 | if (crtc->fb == fb) | |
283 | return crtc; | |
284 | } | |
285 | return NULL; | |
286 | } | |
287 | ||
288 | /** | |
289 | * drm_framebuffer_init - initialize a framebuffer | |
290 | * @dev: DRM device | |
291 | * | |
292 | * LOCKING: | |
293 | * Caller must hold mode config lock. | |
294 | * | |
295 | * Allocates an ID for the framebuffer's parent mode object, sets its mode | |
296 | * functions & device file and adds it to the master fd list. | |
297 | * | |
298 | * RETURNS: | |
299 | * Zero on success, error code on falure. | |
300 | */ | |
301 | int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, | |
302 | const struct drm_framebuffer_funcs *funcs) | |
303 | { | |
304 | int ret; | |
305 | ||
306 | ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB); | |
307 | if (ret) { | |
308 | return ret; | |
309 | } | |
310 | ||
311 | fb->dev = dev; | |
312 | fb->funcs = funcs; | |
313 | dev->mode_config.num_fb++; | |
314 | list_add(&fb->head, &dev->mode_config.fb_list); | |
315 | ||
316 | return 0; | |
317 | } | |
318 | EXPORT_SYMBOL(drm_framebuffer_init); | |
319 | ||
320 | /** | |
321 | * drm_framebuffer_cleanup - remove a framebuffer object | |
322 | * @fb: framebuffer to remove | |
323 | * | |
324 | * LOCKING: | |
325 | * Caller must hold mode config lock. | |
326 | * | |
327 | * Scans all the CRTCs in @dev's mode_config. If they're using @fb, removes | |
328 | * it, setting it to NULL. | |
329 | */ | |
330 | void drm_framebuffer_cleanup(struct drm_framebuffer *fb) | |
331 | { | |
332 | struct drm_device *dev = fb->dev; | |
333 | struct drm_crtc *crtc; | |
334 | ||
335 | /* remove from any CRTC */ | |
336 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
337 | if (crtc->fb == fb) | |
338 | crtc->fb = NULL; | |
339 | } | |
340 | ||
341 | drm_mode_object_put(dev, &fb->base); | |
342 | list_del(&fb->head); | |
343 | dev->mode_config.num_fb--; | |
344 | } | |
345 | EXPORT_SYMBOL(drm_framebuffer_cleanup); | |
346 | ||
347 | /** | |
348 | * drm_crtc_init - Initialise a new CRTC object | |
349 | * @dev: DRM device | |
350 | * @crtc: CRTC object to init | |
351 | * @funcs: callbacks for the new CRTC | |
352 | * | |
353 | * LOCKING: | |
354 | * Caller must hold mode config lock. | |
355 | * | |
356 | * Inits a new object created as base part of an driver crtc object. | |
357 | */ | |
358 | void drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc, | |
359 | const struct drm_crtc_funcs *funcs) | |
360 | { | |
361 | crtc->dev = dev; | |
362 | crtc->funcs = funcs; | |
363 | ||
364 | mutex_lock(&dev->mode_config.mutex); | |
365 | drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); | |
366 | ||
367 | list_add_tail(&crtc->head, &dev->mode_config.crtc_list); | |
368 | dev->mode_config.num_crtc++; | |
369 | mutex_unlock(&dev->mode_config.mutex); | |
370 | } | |
371 | EXPORT_SYMBOL(drm_crtc_init); | |
372 | ||
373 | /** | |
374 | * drm_crtc_cleanup - Cleans up the core crtc usage. | |
375 | * @crtc: CRTC to cleanup | |
376 | * | |
377 | * LOCKING: | |
378 | * Caller must hold mode config lock. | |
379 | * | |
380 | * Cleanup @crtc. Removes from drm modesetting space | |
381 | * does NOT free object, caller does that. | |
382 | */ | |
383 | void drm_crtc_cleanup(struct drm_crtc *crtc) | |
384 | { | |
385 | struct drm_device *dev = crtc->dev; | |
386 | ||
387 | if (crtc->gamma_store) { | |
388 | kfree(crtc->gamma_store); | |
389 | crtc->gamma_store = NULL; | |
390 | } | |
391 | ||
392 | drm_mode_object_put(dev, &crtc->base); | |
393 | list_del(&crtc->head); | |
394 | dev->mode_config.num_crtc--; | |
395 | } | |
396 | EXPORT_SYMBOL(drm_crtc_cleanup); | |
397 | ||
398 | /** | |
399 | * drm_mode_probed_add - add a mode to a connector's probed mode list | |
400 | * @connector: connector the new mode | |
401 | * @mode: mode data | |
402 | * | |
403 | * LOCKING: | |
404 | * Caller must hold mode config lock. | |
405 | * | |
406 | * Add @mode to @connector's mode list for later use. | |
407 | */ | |
408 | void drm_mode_probed_add(struct drm_connector *connector, | |
409 | struct drm_display_mode *mode) | |
410 | { | |
411 | list_add(&mode->head, &connector->probed_modes); | |
412 | } | |
413 | EXPORT_SYMBOL(drm_mode_probed_add); | |
414 | ||
415 | /** | |
416 | * drm_mode_remove - remove and free a mode | |
417 | * @connector: connector list to modify | |
418 | * @mode: mode to remove | |
419 | * | |
420 | * LOCKING: | |
421 | * Caller must hold mode config lock. | |
422 | * | |
423 | * Remove @mode from @connector's mode list, then free it. | |
424 | */ | |
425 | void drm_mode_remove(struct drm_connector *connector, | |
426 | struct drm_display_mode *mode) | |
427 | { | |
428 | list_del(&mode->head); | |
429 | kfree(mode); | |
430 | } | |
431 | EXPORT_SYMBOL(drm_mode_remove); | |
432 | ||
433 | /** | |
434 | * drm_connector_init - Init a preallocated connector | |
435 | * @dev: DRM device | |
436 | * @connector: the connector to init | |
437 | * @funcs: callbacks for this connector | |
438 | * @name: user visible name of the connector | |
439 | * | |
440 | * LOCKING: | |
441 | * Caller must hold @dev's mode_config lock. | |
442 | * | |
443 | * Initialises a preallocated connector. Connectors should be | |
444 | * subclassed as part of driver connector objects. | |
445 | */ | |
446 | void drm_connector_init(struct drm_device *dev, | |
447 | struct drm_connector *connector, | |
448 | const struct drm_connector_funcs *funcs, | |
449 | int connector_type) | |
450 | { | |
451 | mutex_lock(&dev->mode_config.mutex); | |
452 | ||
453 | connector->dev = dev; | |
454 | connector->funcs = funcs; | |
455 | drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR); | |
456 | connector->connector_type = connector_type; | |
457 | connector->connector_type_id = | |
458 | ++drm_connector_enum_list[connector_type].count; /* TODO */ | |
459 | INIT_LIST_HEAD(&connector->user_modes); | |
460 | INIT_LIST_HEAD(&connector->probed_modes); | |
461 | INIT_LIST_HEAD(&connector->modes); | |
462 | connector->edid_blob_ptr = NULL; | |
463 | ||
464 | list_add_tail(&connector->head, &dev->mode_config.connector_list); | |
465 | dev->mode_config.num_connector++; | |
466 | ||
467 | drm_connector_attach_property(connector, | |
468 | dev->mode_config.edid_property, 0); | |
469 | ||
470 | drm_connector_attach_property(connector, | |
471 | dev->mode_config.dpms_property, 0); | |
472 | ||
473 | mutex_unlock(&dev->mode_config.mutex); | |
474 | } | |
475 | EXPORT_SYMBOL(drm_connector_init); | |
476 | ||
477 | /** | |
478 | * drm_connector_cleanup - cleans up an initialised connector | |
479 | * @connector: connector to cleanup | |
480 | * | |
481 | * LOCKING: | |
482 | * Caller must hold @dev's mode_config lock. | |
483 | * | |
484 | * Cleans up the connector but doesn't free the object. | |
485 | */ | |
486 | void drm_connector_cleanup(struct drm_connector *connector) | |
487 | { | |
488 | struct drm_device *dev = connector->dev; | |
489 | struct drm_display_mode *mode, *t; | |
490 | ||
491 | list_for_each_entry_safe(mode, t, &connector->probed_modes, head) | |
492 | drm_mode_remove(connector, mode); | |
493 | ||
494 | list_for_each_entry_safe(mode, t, &connector->modes, head) | |
495 | drm_mode_remove(connector, mode); | |
496 | ||
497 | list_for_each_entry_safe(mode, t, &connector->user_modes, head) | |
498 | drm_mode_remove(connector, mode); | |
499 | ||
500 | mutex_lock(&dev->mode_config.mutex); | |
501 | drm_mode_object_put(dev, &connector->base); | |
502 | list_del(&connector->head); | |
503 | mutex_unlock(&dev->mode_config.mutex); | |
504 | } | |
505 | EXPORT_SYMBOL(drm_connector_cleanup); | |
506 | ||
507 | void drm_encoder_init(struct drm_device *dev, | |
508 | struct drm_encoder *encoder, | |
509 | const struct drm_encoder_funcs *funcs, | |
510 | int encoder_type) | |
511 | { | |
512 | mutex_lock(&dev->mode_config.mutex); | |
513 | ||
514 | encoder->dev = dev; | |
515 | ||
516 | drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); | |
517 | encoder->encoder_type = encoder_type; | |
518 | encoder->funcs = funcs; | |
519 | ||
520 | list_add_tail(&encoder->head, &dev->mode_config.encoder_list); | |
521 | dev->mode_config.num_encoder++; | |
522 | ||
523 | mutex_unlock(&dev->mode_config.mutex); | |
524 | } | |
525 | EXPORT_SYMBOL(drm_encoder_init); | |
526 | ||
527 | void drm_encoder_cleanup(struct drm_encoder *encoder) | |
528 | { | |
529 | struct drm_device *dev = encoder->dev; | |
530 | mutex_lock(&dev->mode_config.mutex); | |
531 | drm_mode_object_put(dev, &encoder->base); | |
532 | list_del(&encoder->head); | |
533 | mutex_unlock(&dev->mode_config.mutex); | |
534 | } | |
535 | EXPORT_SYMBOL(drm_encoder_cleanup); | |
536 | ||
537 | /** | |
538 | * drm_mode_create - create a new display mode | |
539 | * @dev: DRM device | |
540 | * | |
541 | * LOCKING: | |
542 | * Caller must hold DRM mode_config lock. | |
543 | * | |
544 | * Create a new drm_display_mode, give it an ID, and return it. | |
545 | * | |
546 | * RETURNS: | |
547 | * Pointer to new mode on success, NULL on error. | |
548 | */ | |
549 | struct drm_display_mode *drm_mode_create(struct drm_device *dev) | |
550 | { | |
551 | struct drm_display_mode *nmode; | |
552 | ||
553 | nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL); | |
554 | if (!nmode) | |
555 | return NULL; | |
556 | ||
557 | drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE); | |
558 | return nmode; | |
559 | } | |
560 | EXPORT_SYMBOL(drm_mode_create); | |
561 | ||
562 | /** | |
563 | * drm_mode_destroy - remove a mode | |
564 | * @dev: DRM device | |
565 | * @mode: mode to remove | |
566 | * | |
567 | * LOCKING: | |
568 | * Caller must hold mode config lock. | |
569 | * | |
570 | * Free @mode's unique identifier, then free it. | |
571 | */ | |
572 | void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode) | |
573 | { | |
574 | drm_mode_object_put(dev, &mode->base); | |
575 | ||
576 | kfree(mode); | |
577 | } | |
578 | EXPORT_SYMBOL(drm_mode_destroy); | |
579 | ||
580 | static int drm_mode_create_standard_connector_properties(struct drm_device *dev) | |
581 | { | |
582 | struct drm_property *edid; | |
583 | struct drm_property *dpms; | |
584 | int i; | |
585 | ||
586 | /* | |
587 | * Standard properties (apply to all connectors) | |
588 | */ | |
589 | edid = drm_property_create(dev, DRM_MODE_PROP_BLOB | | |
590 | DRM_MODE_PROP_IMMUTABLE, | |
591 | "EDID", 0); | |
592 | dev->mode_config.edid_property = edid; | |
593 | ||
594 | dpms = drm_property_create(dev, DRM_MODE_PROP_ENUM, | |
595 | "DPMS", ARRAY_SIZE(drm_dpms_enum_list)); | |
596 | for (i = 0; i < ARRAY_SIZE(drm_dpms_enum_list); i++) | |
597 | drm_property_add_enum(dpms, i, drm_dpms_enum_list[i].type, | |
598 | drm_dpms_enum_list[i].name); | |
599 | dev->mode_config.dpms_property = dpms; | |
600 | ||
601 | return 0; | |
602 | } | |
603 | ||
604 | /** | |
605 | * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties | |
606 | * @dev: DRM device | |
607 | * | |
608 | * Called by a driver the first time a DVI-I connector is made. | |
609 | */ | |
610 | int drm_mode_create_dvi_i_properties(struct drm_device *dev) | |
611 | { | |
612 | struct drm_property *dvi_i_selector; | |
613 | struct drm_property *dvi_i_subconnector; | |
614 | int i; | |
615 | ||
616 | if (dev->mode_config.dvi_i_select_subconnector_property) | |
617 | return 0; | |
618 | ||
619 | dvi_i_selector = | |
620 | drm_property_create(dev, DRM_MODE_PROP_ENUM, | |
621 | "select subconnector", | |
622 | ARRAY_SIZE(drm_dvi_i_select_enum_list)); | |
623 | for (i = 0; i < ARRAY_SIZE(drm_dvi_i_select_enum_list); i++) | |
624 | drm_property_add_enum(dvi_i_selector, i, | |
625 | drm_dvi_i_select_enum_list[i].type, | |
626 | drm_dvi_i_select_enum_list[i].name); | |
627 | dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; | |
628 | ||
629 | dvi_i_subconnector = | |
630 | drm_property_create(dev, DRM_MODE_PROP_ENUM | | |
631 | DRM_MODE_PROP_IMMUTABLE, | |
632 | "subconnector", | |
633 | ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); | |
634 | for (i = 0; i < ARRAY_SIZE(drm_dvi_i_subconnector_enum_list); i++) | |
635 | drm_property_add_enum(dvi_i_subconnector, i, | |
636 | drm_dvi_i_subconnector_enum_list[i].type, | |
637 | drm_dvi_i_subconnector_enum_list[i].name); | |
638 | dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; | |
639 | ||
640 | return 0; | |
641 | } | |
642 | EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); | |
643 | ||
644 | /** | |
645 | * drm_create_tv_properties - create TV specific connector properties | |
646 | * @dev: DRM device | |
647 | * @num_modes: number of different TV formats (modes) supported | |
648 | * @modes: array of pointers to strings containing name of each format | |
649 | * | |
650 | * Called by a driver's TV initialization routine, this function creates | |
651 | * the TV specific connector properties for a given device. Caller is | |
652 | * responsible for allocating a list of format names and passing them to | |
653 | * this routine. | |
654 | */ | |
655 | int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes, | |
656 | char *modes[]) | |
657 | { | |
658 | struct drm_property *tv_selector; | |
659 | struct drm_property *tv_subconnector; | |
660 | int i; | |
661 | ||
662 | if (dev->mode_config.tv_select_subconnector_property) | |
663 | return 0; | |
664 | ||
665 | /* | |
666 | * Basic connector properties | |
667 | */ | |
668 | tv_selector = drm_property_create(dev, DRM_MODE_PROP_ENUM, | |
669 | "select subconnector", | |
670 | ARRAY_SIZE(drm_tv_select_enum_list)); | |
671 | for (i = 0; i < ARRAY_SIZE(drm_tv_select_enum_list); i++) | |
672 | drm_property_add_enum(tv_selector, i, | |
673 | drm_tv_select_enum_list[i].type, | |
674 | drm_tv_select_enum_list[i].name); | |
675 | dev->mode_config.tv_select_subconnector_property = tv_selector; | |
676 | ||
677 | tv_subconnector = | |
678 | drm_property_create(dev, DRM_MODE_PROP_ENUM | | |
679 | DRM_MODE_PROP_IMMUTABLE, "subconnector", | |
680 | ARRAY_SIZE(drm_tv_subconnector_enum_list)); | |
681 | for (i = 0; i < ARRAY_SIZE(drm_tv_subconnector_enum_list); i++) | |
682 | drm_property_add_enum(tv_subconnector, i, | |
683 | drm_tv_subconnector_enum_list[i].type, | |
684 | drm_tv_subconnector_enum_list[i].name); | |
685 | dev->mode_config.tv_subconnector_property = tv_subconnector; | |
686 | ||
687 | /* | |
688 | * Other, TV specific properties: margins & TV modes. | |
689 | */ | |
690 | dev->mode_config.tv_left_margin_property = | |
691 | drm_property_create(dev, DRM_MODE_PROP_RANGE, | |
692 | "left margin", 2); | |
693 | dev->mode_config.tv_left_margin_property->values[0] = 0; | |
694 | dev->mode_config.tv_left_margin_property->values[1] = 100; | |
695 | ||
696 | dev->mode_config.tv_right_margin_property = | |
697 | drm_property_create(dev, DRM_MODE_PROP_RANGE, | |
698 | "right margin", 2); | |
699 | dev->mode_config.tv_right_margin_property->values[0] = 0; | |
700 | dev->mode_config.tv_right_margin_property->values[1] = 100; | |
701 | ||
702 | dev->mode_config.tv_top_margin_property = | |
703 | drm_property_create(dev, DRM_MODE_PROP_RANGE, | |
704 | "top margin", 2); | |
705 | dev->mode_config.tv_top_margin_property->values[0] = 0; | |
706 | dev->mode_config.tv_top_margin_property->values[1] = 100; | |
707 | ||
708 | dev->mode_config.tv_bottom_margin_property = | |
709 | drm_property_create(dev, DRM_MODE_PROP_RANGE, | |
710 | "bottom margin", 2); | |
711 | dev->mode_config.tv_bottom_margin_property->values[0] = 0; | |
712 | dev->mode_config.tv_bottom_margin_property->values[1] = 100; | |
713 | ||
714 | dev->mode_config.tv_mode_property = | |
715 | drm_property_create(dev, DRM_MODE_PROP_ENUM, | |
716 | "mode", num_modes); | |
717 | for (i = 0; i < num_modes; i++) | |
718 | drm_property_add_enum(dev->mode_config.tv_mode_property, i, | |
719 | i, modes[i]); | |
720 | ||
b6b7902e FJ |
721 | dev->mode_config.tv_brightness_property = |
722 | drm_property_create(dev, DRM_MODE_PROP_RANGE, | |
723 | "brightness", 2); | |
724 | dev->mode_config.tv_brightness_property->values[0] = 0; | |
725 | dev->mode_config.tv_brightness_property->values[1] = 100; | |
726 | ||
727 | dev->mode_config.tv_contrast_property = | |
728 | drm_property_create(dev, DRM_MODE_PROP_RANGE, | |
729 | "contrast", 2); | |
730 | dev->mode_config.tv_contrast_property->values[0] = 0; | |
731 | dev->mode_config.tv_contrast_property->values[1] = 100; | |
732 | ||
733 | dev->mode_config.tv_flicker_reduction_property = | |
734 | drm_property_create(dev, DRM_MODE_PROP_RANGE, | |
735 | "flicker reduction", 2); | |
736 | dev->mode_config.tv_flicker_reduction_property->values[0] = 0; | |
737 | dev->mode_config.tv_flicker_reduction_property->values[1] = 100; | |
738 | ||
f453ba04 DA |
739 | return 0; |
740 | } | |
741 | EXPORT_SYMBOL(drm_mode_create_tv_properties); | |
742 | ||
743 | /** | |
744 | * drm_mode_create_scaling_mode_property - create scaling mode property | |
745 | * @dev: DRM device | |
746 | * | |
747 | * Called by a driver the first time it's needed, must be attached to desired | |
748 | * connectors. | |
749 | */ | |
750 | int drm_mode_create_scaling_mode_property(struct drm_device *dev) | |
751 | { | |
752 | struct drm_property *scaling_mode; | |
753 | int i; | |
754 | ||
755 | if (dev->mode_config.scaling_mode_property) | |
756 | return 0; | |
757 | ||
758 | scaling_mode = | |
759 | drm_property_create(dev, DRM_MODE_PROP_ENUM, "scaling mode", | |
760 | ARRAY_SIZE(drm_scaling_mode_enum_list)); | |
761 | for (i = 0; i < ARRAY_SIZE(drm_scaling_mode_enum_list); i++) | |
762 | drm_property_add_enum(scaling_mode, i, | |
763 | drm_scaling_mode_enum_list[i].type, | |
764 | drm_scaling_mode_enum_list[i].name); | |
765 | ||
766 | dev->mode_config.scaling_mode_property = scaling_mode; | |
767 | ||
768 | return 0; | |
769 | } | |
770 | EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); | |
771 | ||
772 | /** | |
773 | * drm_mode_create_dithering_property - create dithering property | |
774 | * @dev: DRM device | |
775 | * | |
776 | * Called by a driver the first time it's needed, must be attached to desired | |
777 | * connectors. | |
778 | */ | |
779 | int drm_mode_create_dithering_property(struct drm_device *dev) | |
780 | { | |
781 | struct drm_property *dithering_mode; | |
782 | int i; | |
783 | ||
784 | if (dev->mode_config.dithering_mode_property) | |
785 | return 0; | |
786 | ||
787 | dithering_mode = | |
788 | drm_property_create(dev, DRM_MODE_PROP_ENUM, "dithering", | |
789 | ARRAY_SIZE(drm_dithering_mode_enum_list)); | |
790 | for (i = 0; i < ARRAY_SIZE(drm_dithering_mode_enum_list); i++) | |
791 | drm_property_add_enum(dithering_mode, i, | |
792 | drm_dithering_mode_enum_list[i].type, | |
793 | drm_dithering_mode_enum_list[i].name); | |
794 | dev->mode_config.dithering_mode_property = dithering_mode; | |
795 | ||
796 | return 0; | |
797 | } | |
798 | EXPORT_SYMBOL(drm_mode_create_dithering_property); | |
799 | ||
800 | /** | |
801 | * drm_mode_config_init - initialize DRM mode_configuration structure | |
802 | * @dev: DRM device | |
803 | * | |
804 | * LOCKING: | |
805 | * None, should happen single threaded at init time. | |
806 | * | |
807 | * Initialize @dev's mode_config structure, used for tracking the graphics | |
808 | * configuration of @dev. | |
809 | */ | |
810 | void drm_mode_config_init(struct drm_device *dev) | |
811 | { | |
812 | mutex_init(&dev->mode_config.mutex); | |
ad2563c2 | 813 | mutex_init(&dev->mode_config.idr_mutex); |
f453ba04 DA |
814 | INIT_LIST_HEAD(&dev->mode_config.fb_list); |
815 | INIT_LIST_HEAD(&dev->mode_config.fb_kernel_list); | |
816 | INIT_LIST_HEAD(&dev->mode_config.crtc_list); | |
817 | INIT_LIST_HEAD(&dev->mode_config.connector_list); | |
818 | INIT_LIST_HEAD(&dev->mode_config.encoder_list); | |
819 | INIT_LIST_HEAD(&dev->mode_config.property_list); | |
820 | INIT_LIST_HEAD(&dev->mode_config.property_blob_list); | |
821 | idr_init(&dev->mode_config.crtc_idr); | |
822 | ||
823 | mutex_lock(&dev->mode_config.mutex); | |
824 | drm_mode_create_standard_connector_properties(dev); | |
825 | mutex_unlock(&dev->mode_config.mutex); | |
826 | ||
827 | /* Just to be sure */ | |
828 | dev->mode_config.num_fb = 0; | |
829 | dev->mode_config.num_connector = 0; | |
830 | dev->mode_config.num_crtc = 0; | |
831 | dev->mode_config.num_encoder = 0; | |
f453ba04 DA |
832 | } |
833 | EXPORT_SYMBOL(drm_mode_config_init); | |
834 | ||
835 | int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group) | |
836 | { | |
837 | uint32_t total_objects = 0; | |
838 | ||
839 | total_objects += dev->mode_config.num_crtc; | |
840 | total_objects += dev->mode_config.num_connector; | |
841 | total_objects += dev->mode_config.num_encoder; | |
842 | ||
843 | if (total_objects == 0) | |
844 | return -EINVAL; | |
845 | ||
846 | group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL); | |
847 | if (!group->id_list) | |
848 | return -ENOMEM; | |
849 | ||
850 | group->num_crtcs = 0; | |
851 | group->num_connectors = 0; | |
852 | group->num_encoders = 0; | |
853 | return 0; | |
854 | } | |
855 | ||
856 | int drm_mode_group_init_legacy_group(struct drm_device *dev, | |
857 | struct drm_mode_group *group) | |
858 | { | |
859 | struct drm_crtc *crtc; | |
860 | struct drm_encoder *encoder; | |
861 | struct drm_connector *connector; | |
862 | int ret; | |
863 | ||
864 | if ((ret = drm_mode_group_init(dev, group))) | |
865 | return ret; | |
866 | ||
867 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) | |
868 | group->id_list[group->num_crtcs++] = crtc->base.id; | |
869 | ||
870 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) | |
871 | group->id_list[group->num_crtcs + group->num_encoders++] = | |
872 | encoder->base.id; | |
873 | ||
874 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) | |
875 | group->id_list[group->num_crtcs + group->num_encoders + | |
876 | group->num_connectors++] = connector->base.id; | |
877 | ||
878 | return 0; | |
879 | } | |
880 | ||
881 | /** | |
882 | * drm_mode_config_cleanup - free up DRM mode_config info | |
883 | * @dev: DRM device | |
884 | * | |
885 | * LOCKING: | |
886 | * Caller must hold mode config lock. | |
887 | * | |
888 | * Free up all the connectors and CRTCs associated with this DRM device, then | |
889 | * free up the framebuffers and associated buffer objects. | |
890 | * | |
891 | * FIXME: cleanup any dangling user buffer objects too | |
892 | */ | |
893 | void drm_mode_config_cleanup(struct drm_device *dev) | |
894 | { | |
895 | struct drm_connector *connector, *ot; | |
896 | struct drm_crtc *crtc, *ct; | |
897 | struct drm_encoder *encoder, *enct; | |
898 | struct drm_framebuffer *fb, *fbt; | |
899 | struct drm_property *property, *pt; | |
900 | ||
901 | list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, | |
902 | head) { | |
903 | encoder->funcs->destroy(encoder); | |
904 | } | |
905 | ||
906 | list_for_each_entry_safe(connector, ot, | |
907 | &dev->mode_config.connector_list, head) { | |
908 | connector->funcs->destroy(connector); | |
909 | } | |
910 | ||
911 | list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, | |
912 | head) { | |
913 | drm_property_destroy(dev, property); | |
914 | } | |
915 | ||
916 | list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { | |
917 | fb->funcs->destroy(fb); | |
918 | } | |
919 | ||
920 | list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { | |
921 | crtc->funcs->destroy(crtc); | |
922 | } | |
923 | ||
924 | } | |
925 | EXPORT_SYMBOL(drm_mode_config_cleanup); | |
926 | ||
f453ba04 DA |
927 | /** |
928 | * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo | |
929 | * @out: drm_mode_modeinfo struct to return to the user | |
930 | * @in: drm_display_mode to use | |
931 | * | |
932 | * LOCKING: | |
933 | * None. | |
934 | * | |
935 | * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to | |
936 | * the user. | |
937 | */ | |
938 | void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out, | |
939 | struct drm_display_mode *in) | |
940 | { | |
941 | out->clock = in->clock; | |
942 | out->hdisplay = in->hdisplay; | |
943 | out->hsync_start = in->hsync_start; | |
944 | out->hsync_end = in->hsync_end; | |
945 | out->htotal = in->htotal; | |
946 | out->hskew = in->hskew; | |
947 | out->vdisplay = in->vdisplay; | |
948 | out->vsync_start = in->vsync_start; | |
949 | out->vsync_end = in->vsync_end; | |
950 | out->vtotal = in->vtotal; | |
951 | out->vscan = in->vscan; | |
952 | out->vrefresh = in->vrefresh; | |
953 | out->flags = in->flags; | |
954 | out->type = in->type; | |
955 | strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); | |
956 | out->name[DRM_DISPLAY_MODE_LEN-1] = 0; | |
957 | } | |
958 | ||
959 | /** | |
960 | * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode | |
961 | * @out: drm_display_mode to return to the user | |
962 | * @in: drm_mode_modeinfo to use | |
963 | * | |
964 | * LOCKING: | |
965 | * None. | |
966 | * | |
967 | * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to | |
968 | * the caller. | |
969 | */ | |
970 | void drm_crtc_convert_umode(struct drm_display_mode *out, | |
971 | struct drm_mode_modeinfo *in) | |
972 | { | |
973 | out->clock = in->clock; | |
974 | out->hdisplay = in->hdisplay; | |
975 | out->hsync_start = in->hsync_start; | |
976 | out->hsync_end = in->hsync_end; | |
977 | out->htotal = in->htotal; | |
978 | out->hskew = in->hskew; | |
979 | out->vdisplay = in->vdisplay; | |
980 | out->vsync_start = in->vsync_start; | |
981 | out->vsync_end = in->vsync_end; | |
982 | out->vtotal = in->vtotal; | |
983 | out->vscan = in->vscan; | |
984 | out->vrefresh = in->vrefresh; | |
985 | out->flags = in->flags; | |
986 | out->type = in->type; | |
987 | strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); | |
988 | out->name[DRM_DISPLAY_MODE_LEN-1] = 0; | |
989 | } | |
990 | ||
991 | /** | |
992 | * drm_mode_getresources - get graphics configuration | |
993 | * @inode: inode from the ioctl | |
994 | * @filp: file * from the ioctl | |
995 | * @cmd: cmd from ioctl | |
996 | * @arg: arg from ioctl | |
997 | * | |
998 | * LOCKING: | |
999 | * Takes mode config lock. | |
1000 | * | |
1001 | * Construct a set of configuration description structures and return | |
1002 | * them to the user, including CRTC, connector and framebuffer configuration. | |
1003 | * | |
1004 | * Called by the user via ioctl. | |
1005 | * | |
1006 | * RETURNS: | |
1007 | * Zero on success, errno on failure. | |
1008 | */ | |
1009 | int drm_mode_getresources(struct drm_device *dev, void *data, | |
1010 | struct drm_file *file_priv) | |
1011 | { | |
1012 | struct drm_mode_card_res *card_res = data; | |
1013 | struct list_head *lh; | |
1014 | struct drm_framebuffer *fb; | |
1015 | struct drm_connector *connector; | |
1016 | struct drm_crtc *crtc; | |
1017 | struct drm_encoder *encoder; | |
1018 | int ret = 0; | |
1019 | int connector_count = 0; | |
1020 | int crtc_count = 0; | |
1021 | int fb_count = 0; | |
1022 | int encoder_count = 0; | |
1023 | int copied = 0, i; | |
1024 | uint32_t __user *fb_id; | |
1025 | uint32_t __user *crtc_id; | |
1026 | uint32_t __user *connector_id; | |
1027 | uint32_t __user *encoder_id; | |
1028 | struct drm_mode_group *mode_group; | |
1029 | ||
1030 | mutex_lock(&dev->mode_config.mutex); | |
1031 | ||
1032 | /* | |
1033 | * For the non-control nodes we need to limit the list of resources | |
1034 | * by IDs in the group list for this node | |
1035 | */ | |
1036 | list_for_each(lh, &file_priv->fbs) | |
1037 | fb_count++; | |
1038 | ||
1039 | mode_group = &file_priv->master->minor->mode_group; | |
1040 | if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { | |
1041 | ||
1042 | list_for_each(lh, &dev->mode_config.crtc_list) | |
1043 | crtc_count++; | |
1044 | ||
1045 | list_for_each(lh, &dev->mode_config.connector_list) | |
1046 | connector_count++; | |
1047 | ||
1048 | list_for_each(lh, &dev->mode_config.encoder_list) | |
1049 | encoder_count++; | |
1050 | } else { | |
1051 | ||
1052 | crtc_count = mode_group->num_crtcs; | |
1053 | connector_count = mode_group->num_connectors; | |
1054 | encoder_count = mode_group->num_encoders; | |
1055 | } | |
1056 | ||
1057 | card_res->max_height = dev->mode_config.max_height; | |
1058 | card_res->min_height = dev->mode_config.min_height; | |
1059 | card_res->max_width = dev->mode_config.max_width; | |
1060 | card_res->min_width = dev->mode_config.min_width; | |
1061 | ||
1062 | /* handle this in 4 parts */ | |
1063 | /* FBs */ | |
1064 | if (card_res->count_fbs >= fb_count) { | |
1065 | copied = 0; | |
1066 | fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; | |
1067 | list_for_each_entry(fb, &file_priv->fbs, head) { | |
1068 | if (put_user(fb->base.id, fb_id + copied)) { | |
1069 | ret = -EFAULT; | |
1070 | goto out; | |
1071 | } | |
1072 | copied++; | |
1073 | } | |
1074 | } | |
1075 | card_res->count_fbs = fb_count; | |
1076 | ||
1077 | /* CRTCs */ | |
1078 | if (card_res->count_crtcs >= crtc_count) { | |
1079 | copied = 0; | |
1080 | crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; | |
1081 | if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { | |
1082 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, | |
1083 | head) { | |
58367ed6 | 1084 | DRM_DEBUG_KMS("CRTC ID is %d\n", crtc->base.id); |
f453ba04 DA |
1085 | if (put_user(crtc->base.id, crtc_id + copied)) { |
1086 | ret = -EFAULT; | |
1087 | goto out; | |
1088 | } | |
1089 | copied++; | |
1090 | } | |
1091 | } else { | |
1092 | for (i = 0; i < mode_group->num_crtcs; i++) { | |
1093 | if (put_user(mode_group->id_list[i], | |
1094 | crtc_id + copied)) { | |
1095 | ret = -EFAULT; | |
1096 | goto out; | |
1097 | } | |
1098 | copied++; | |
1099 | } | |
1100 | } | |
1101 | } | |
1102 | card_res->count_crtcs = crtc_count; | |
1103 | ||
1104 | /* Encoders */ | |
1105 | if (card_res->count_encoders >= encoder_count) { | |
1106 | copied = 0; | |
1107 | encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; | |
1108 | if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { | |
1109 | list_for_each_entry(encoder, | |
1110 | &dev->mode_config.encoder_list, | |
1111 | head) { | |
58367ed6 | 1112 | DRM_DEBUG_KMS("ENCODER ID is %d\n", |
f453ba04 DA |
1113 | encoder->base.id); |
1114 | if (put_user(encoder->base.id, encoder_id + | |
1115 | copied)) { | |
1116 | ret = -EFAULT; | |
1117 | goto out; | |
1118 | } | |
1119 | copied++; | |
1120 | } | |
1121 | } else { | |
1122 | for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) { | |
1123 | if (put_user(mode_group->id_list[i], | |
1124 | encoder_id + copied)) { | |
1125 | ret = -EFAULT; | |
1126 | goto out; | |
1127 | } | |
1128 | copied++; | |
1129 | } | |
1130 | ||
1131 | } | |
1132 | } | |
1133 | card_res->count_encoders = encoder_count; | |
1134 | ||
1135 | /* Connectors */ | |
1136 | if (card_res->count_connectors >= connector_count) { | |
1137 | copied = 0; | |
1138 | connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; | |
1139 | if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { | |
1140 | list_for_each_entry(connector, | |
1141 | &dev->mode_config.connector_list, | |
1142 | head) { | |
58367ed6 | 1143 | DRM_DEBUG_KMS("CONNECTOR ID is %d\n", |
f453ba04 DA |
1144 | connector->base.id); |
1145 | if (put_user(connector->base.id, | |
1146 | connector_id + copied)) { | |
1147 | ret = -EFAULT; | |
1148 | goto out; | |
1149 | } | |
1150 | copied++; | |
1151 | } | |
1152 | } else { | |
1153 | int start = mode_group->num_crtcs + | |
1154 | mode_group->num_encoders; | |
1155 | for (i = start; i < start + mode_group->num_connectors; i++) { | |
1156 | if (put_user(mode_group->id_list[i], | |
1157 | connector_id + copied)) { | |
1158 | ret = -EFAULT; | |
1159 | goto out; | |
1160 | } | |
1161 | copied++; | |
1162 | } | |
1163 | } | |
1164 | } | |
1165 | card_res->count_connectors = connector_count; | |
1166 | ||
58367ed6 | 1167 | DRM_DEBUG_KMS("Counted %d %d %d\n", card_res->count_crtcs, |
f453ba04 DA |
1168 | card_res->count_connectors, card_res->count_encoders); |
1169 | ||
1170 | out: | |
1171 | mutex_unlock(&dev->mode_config.mutex); | |
1172 | return ret; | |
1173 | } | |
1174 | ||
1175 | /** | |
1176 | * drm_mode_getcrtc - get CRTC configuration | |
1177 | * @inode: inode from the ioctl | |
1178 | * @filp: file * from the ioctl | |
1179 | * @cmd: cmd from ioctl | |
1180 | * @arg: arg from ioctl | |
1181 | * | |
1182 | * LOCKING: | |
1183 | * Caller? (FIXME) | |
1184 | * | |
1185 | * Construct a CRTC configuration structure to return to the user. | |
1186 | * | |
1187 | * Called by the user via ioctl. | |
1188 | * | |
1189 | * RETURNS: | |
1190 | * Zero on success, errno on failure. | |
1191 | */ | |
1192 | int drm_mode_getcrtc(struct drm_device *dev, | |
1193 | void *data, struct drm_file *file_priv) | |
1194 | { | |
1195 | struct drm_mode_crtc *crtc_resp = data; | |
1196 | struct drm_crtc *crtc; | |
1197 | struct drm_mode_object *obj; | |
1198 | int ret = 0; | |
1199 | ||
1200 | mutex_lock(&dev->mode_config.mutex); | |
1201 | ||
1202 | obj = drm_mode_object_find(dev, crtc_resp->crtc_id, | |
1203 | DRM_MODE_OBJECT_CRTC); | |
1204 | if (!obj) { | |
1205 | ret = -EINVAL; | |
1206 | goto out; | |
1207 | } | |
1208 | crtc = obj_to_crtc(obj); | |
1209 | ||
1210 | crtc_resp->x = crtc->x; | |
1211 | crtc_resp->y = crtc->y; | |
1212 | crtc_resp->gamma_size = crtc->gamma_size; | |
1213 | if (crtc->fb) | |
1214 | crtc_resp->fb_id = crtc->fb->base.id; | |
1215 | else | |
1216 | crtc_resp->fb_id = 0; | |
1217 | ||
1218 | if (crtc->enabled) { | |
1219 | ||
1220 | drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode); | |
1221 | crtc_resp->mode_valid = 1; | |
1222 | ||
1223 | } else { | |
1224 | crtc_resp->mode_valid = 0; | |
1225 | } | |
1226 | ||
1227 | out: | |
1228 | mutex_unlock(&dev->mode_config.mutex); | |
1229 | return ret; | |
1230 | } | |
1231 | ||
1232 | /** | |
1233 | * drm_mode_getconnector - get connector configuration | |
1234 | * @inode: inode from the ioctl | |
1235 | * @filp: file * from the ioctl | |
1236 | * @cmd: cmd from ioctl | |
1237 | * @arg: arg from ioctl | |
1238 | * | |
1239 | * LOCKING: | |
1240 | * Caller? (FIXME) | |
1241 | * | |
1242 | * Construct a connector configuration structure to return to the user. | |
1243 | * | |
1244 | * Called by the user via ioctl. | |
1245 | * | |
1246 | * RETURNS: | |
1247 | * Zero on success, errno on failure. | |
1248 | */ | |
1249 | int drm_mode_getconnector(struct drm_device *dev, void *data, | |
1250 | struct drm_file *file_priv) | |
1251 | { | |
1252 | struct drm_mode_get_connector *out_resp = data; | |
1253 | struct drm_mode_object *obj; | |
1254 | struct drm_connector *connector; | |
1255 | struct drm_display_mode *mode; | |
1256 | int mode_count = 0; | |
1257 | int props_count = 0; | |
1258 | int encoders_count = 0; | |
1259 | int ret = 0; | |
1260 | int copied = 0; | |
1261 | int i; | |
1262 | struct drm_mode_modeinfo u_mode; | |
1263 | struct drm_mode_modeinfo __user *mode_ptr; | |
1264 | uint32_t __user *prop_ptr; | |
1265 | uint64_t __user *prop_values; | |
1266 | uint32_t __user *encoder_ptr; | |
1267 | ||
1268 | memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); | |
1269 | ||
58367ed6 | 1270 | DRM_DEBUG_KMS("connector id %d:\n", out_resp->connector_id); |
f453ba04 DA |
1271 | |
1272 | mutex_lock(&dev->mode_config.mutex); | |
1273 | ||
1274 | obj = drm_mode_object_find(dev, out_resp->connector_id, | |
1275 | DRM_MODE_OBJECT_CONNECTOR); | |
1276 | if (!obj) { | |
1277 | ret = -EINVAL; | |
1278 | goto out; | |
1279 | } | |
1280 | connector = obj_to_connector(obj); | |
1281 | ||
1282 | for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) { | |
1283 | if (connector->property_ids[i] != 0) { | |
1284 | props_count++; | |
1285 | } | |
1286 | } | |
1287 | ||
1288 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { | |
1289 | if (connector->encoder_ids[i] != 0) { | |
1290 | encoders_count++; | |
1291 | } | |
1292 | } | |
1293 | ||
1294 | if (out_resp->count_modes == 0) { | |
1295 | connector->funcs->fill_modes(connector, | |
1296 | dev->mode_config.max_width, | |
1297 | dev->mode_config.max_height); | |
1298 | } | |
1299 | ||
1300 | /* delayed so we get modes regardless of pre-fill_modes state */ | |
1301 | list_for_each_entry(mode, &connector->modes, head) | |
1302 | mode_count++; | |
1303 | ||
1304 | out_resp->connector_id = connector->base.id; | |
1305 | out_resp->connector_type = connector->connector_type; | |
1306 | out_resp->connector_type_id = connector->connector_type_id; | |
1307 | out_resp->mm_width = connector->display_info.width_mm; | |
1308 | out_resp->mm_height = connector->display_info.height_mm; | |
1309 | out_resp->subpixel = connector->display_info.subpixel_order; | |
1310 | out_resp->connection = connector->status; | |
1311 | if (connector->encoder) | |
1312 | out_resp->encoder_id = connector->encoder->base.id; | |
1313 | else | |
1314 | out_resp->encoder_id = 0; | |
1315 | ||
1316 | /* | |
1317 | * This ioctl is called twice, once to determine how much space is | |
1318 | * needed, and the 2nd time to fill it. | |
1319 | */ | |
1320 | if ((out_resp->count_modes >= mode_count) && mode_count) { | |
1321 | copied = 0; | |
1322 | mode_ptr = (struct drm_mode_modeinfo *)(unsigned long)out_resp->modes_ptr; | |
1323 | list_for_each_entry(mode, &connector->modes, head) { | |
1324 | drm_crtc_convert_to_umode(&u_mode, mode); | |
1325 | if (copy_to_user(mode_ptr + copied, | |
1326 | &u_mode, sizeof(u_mode))) { | |
1327 | ret = -EFAULT; | |
1328 | goto out; | |
1329 | } | |
1330 | copied++; | |
1331 | } | |
1332 | } | |
1333 | out_resp->count_modes = mode_count; | |
1334 | ||
1335 | if ((out_resp->count_props >= props_count) && props_count) { | |
1336 | copied = 0; | |
1337 | prop_ptr = (uint32_t *)(unsigned long)(out_resp->props_ptr); | |
1338 | prop_values = (uint64_t *)(unsigned long)(out_resp->prop_values_ptr); | |
1339 | for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) { | |
1340 | if (connector->property_ids[i] != 0) { | |
1341 | if (put_user(connector->property_ids[i], | |
1342 | prop_ptr + copied)) { | |
1343 | ret = -EFAULT; | |
1344 | goto out; | |
1345 | } | |
1346 | ||
1347 | if (put_user(connector->property_values[i], | |
1348 | prop_values + copied)) { | |
1349 | ret = -EFAULT; | |
1350 | goto out; | |
1351 | } | |
1352 | copied++; | |
1353 | } | |
1354 | } | |
1355 | } | |
1356 | out_resp->count_props = props_count; | |
1357 | ||
1358 | if ((out_resp->count_encoders >= encoders_count) && encoders_count) { | |
1359 | copied = 0; | |
1360 | encoder_ptr = (uint32_t *)(unsigned long)(out_resp->encoders_ptr); | |
1361 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { | |
1362 | if (connector->encoder_ids[i] != 0) { | |
1363 | if (put_user(connector->encoder_ids[i], | |
1364 | encoder_ptr + copied)) { | |
1365 | ret = -EFAULT; | |
1366 | goto out; | |
1367 | } | |
1368 | copied++; | |
1369 | } | |
1370 | } | |
1371 | } | |
1372 | out_resp->count_encoders = encoders_count; | |
1373 | ||
1374 | out: | |
1375 | mutex_unlock(&dev->mode_config.mutex); | |
1376 | return ret; | |
1377 | } | |
1378 | ||
1379 | int drm_mode_getencoder(struct drm_device *dev, void *data, | |
1380 | struct drm_file *file_priv) | |
1381 | { | |
1382 | struct drm_mode_get_encoder *enc_resp = data; | |
1383 | struct drm_mode_object *obj; | |
1384 | struct drm_encoder *encoder; | |
1385 | int ret = 0; | |
1386 | ||
1387 | mutex_lock(&dev->mode_config.mutex); | |
1388 | obj = drm_mode_object_find(dev, enc_resp->encoder_id, | |
1389 | DRM_MODE_OBJECT_ENCODER); | |
1390 | if (!obj) { | |
1391 | ret = -EINVAL; | |
1392 | goto out; | |
1393 | } | |
1394 | encoder = obj_to_encoder(obj); | |
1395 | ||
1396 | if (encoder->crtc) | |
1397 | enc_resp->crtc_id = encoder->crtc->base.id; | |
1398 | else | |
1399 | enc_resp->crtc_id = 0; | |
1400 | enc_resp->encoder_type = encoder->encoder_type; | |
1401 | enc_resp->encoder_id = encoder->base.id; | |
1402 | enc_resp->possible_crtcs = encoder->possible_crtcs; | |
1403 | enc_resp->possible_clones = encoder->possible_clones; | |
1404 | ||
1405 | out: | |
1406 | mutex_unlock(&dev->mode_config.mutex); | |
1407 | return ret; | |
1408 | } | |
1409 | ||
1410 | /** | |
1411 | * drm_mode_setcrtc - set CRTC configuration | |
1412 | * @inode: inode from the ioctl | |
1413 | * @filp: file * from the ioctl | |
1414 | * @cmd: cmd from ioctl | |
1415 | * @arg: arg from ioctl | |
1416 | * | |
1417 | * LOCKING: | |
1418 | * Caller? (FIXME) | |
1419 | * | |
1420 | * Build a new CRTC configuration based on user request. | |
1421 | * | |
1422 | * Called by the user via ioctl. | |
1423 | * | |
1424 | * RETURNS: | |
1425 | * Zero on success, errno on failure. | |
1426 | */ | |
1427 | int drm_mode_setcrtc(struct drm_device *dev, void *data, | |
1428 | struct drm_file *file_priv) | |
1429 | { | |
1430 | struct drm_mode_config *config = &dev->mode_config; | |
1431 | struct drm_mode_crtc *crtc_req = data; | |
1432 | struct drm_mode_object *obj; | |
1433 | struct drm_crtc *crtc, *crtcfb; | |
1434 | struct drm_connector **connector_set = NULL, *connector; | |
1435 | struct drm_framebuffer *fb = NULL; | |
1436 | struct drm_display_mode *mode = NULL; | |
1437 | struct drm_mode_set set; | |
1438 | uint32_t __user *set_connectors_ptr; | |
1439 | int ret = 0; | |
1440 | int i; | |
1441 | ||
1442 | mutex_lock(&dev->mode_config.mutex); | |
1443 | obj = drm_mode_object_find(dev, crtc_req->crtc_id, | |
1444 | DRM_MODE_OBJECT_CRTC); | |
1445 | if (!obj) { | |
58367ed6 | 1446 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); |
f453ba04 DA |
1447 | ret = -EINVAL; |
1448 | goto out; | |
1449 | } | |
1450 | crtc = obj_to_crtc(obj); | |
1451 | ||
1452 | if (crtc_req->mode_valid) { | |
1453 | /* If we have a mode we need a framebuffer. */ | |
1454 | /* If we pass -1, set the mode with the currently bound fb */ | |
1455 | if (crtc_req->fb_id == -1) { | |
1456 | list_for_each_entry(crtcfb, | |
1457 | &dev->mode_config.crtc_list, head) { | |
1458 | if (crtcfb == crtc) { | |
58367ed6 ZY |
1459 | DRM_DEBUG_KMS("Using current fb for " |
1460 | "setmode\n"); | |
f453ba04 DA |
1461 | fb = crtc->fb; |
1462 | } | |
1463 | } | |
1464 | } else { | |
1465 | obj = drm_mode_object_find(dev, crtc_req->fb_id, | |
1466 | DRM_MODE_OBJECT_FB); | |
1467 | if (!obj) { | |
58367ed6 ZY |
1468 | DRM_DEBUG_KMS("Unknown FB ID%d\n", |
1469 | crtc_req->fb_id); | |
f453ba04 DA |
1470 | ret = -EINVAL; |
1471 | goto out; | |
1472 | } | |
1473 | fb = obj_to_fb(obj); | |
1474 | } | |
1475 | ||
1476 | mode = drm_mode_create(dev); | |
1477 | drm_crtc_convert_umode(mode, &crtc_req->mode); | |
1478 | drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); | |
1479 | } | |
1480 | ||
1481 | if (crtc_req->count_connectors == 0 && mode) { | |
58367ed6 | 1482 | DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); |
f453ba04 DA |
1483 | ret = -EINVAL; |
1484 | goto out; | |
1485 | } | |
1486 | ||
1487 | if (crtc_req->count_connectors > 0 && !mode && !fb) { | |
58367ed6 | 1488 | DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", |
f453ba04 DA |
1489 | crtc_req->count_connectors); |
1490 | ret = -EINVAL; | |
1491 | goto out; | |
1492 | } | |
1493 | ||
1494 | if (crtc_req->count_connectors > 0) { | |
1495 | u32 out_id; | |
1496 | ||
1497 | /* Avoid unbounded kernel memory allocation */ | |
1498 | if (crtc_req->count_connectors > config->num_connector) { | |
1499 | ret = -EINVAL; | |
1500 | goto out; | |
1501 | } | |
1502 | ||
1503 | connector_set = kmalloc(crtc_req->count_connectors * | |
1504 | sizeof(struct drm_connector *), | |
1505 | GFP_KERNEL); | |
1506 | if (!connector_set) { | |
1507 | ret = -ENOMEM; | |
1508 | goto out; | |
1509 | } | |
1510 | ||
1511 | for (i = 0; i < crtc_req->count_connectors; i++) { | |
1512 | set_connectors_ptr = (uint32_t *)(unsigned long)crtc_req->set_connectors_ptr; | |
1513 | if (get_user(out_id, &set_connectors_ptr[i])) { | |
1514 | ret = -EFAULT; | |
1515 | goto out; | |
1516 | } | |
1517 | ||
1518 | obj = drm_mode_object_find(dev, out_id, | |
1519 | DRM_MODE_OBJECT_CONNECTOR); | |
1520 | if (!obj) { | |
58367ed6 ZY |
1521 | DRM_DEBUG_KMS("Connector id %d unknown\n", |
1522 | out_id); | |
f453ba04 DA |
1523 | ret = -EINVAL; |
1524 | goto out; | |
1525 | } | |
1526 | connector = obj_to_connector(obj); | |
1527 | ||
1528 | connector_set[i] = connector; | |
1529 | } | |
1530 | } | |
1531 | ||
1532 | set.crtc = crtc; | |
1533 | set.x = crtc_req->x; | |
1534 | set.y = crtc_req->y; | |
1535 | set.mode = mode; | |
1536 | set.connectors = connector_set; | |
1537 | set.num_connectors = crtc_req->count_connectors; | |
1538 | set.fb =fb; | |
1539 | ret = crtc->funcs->set_config(&set); | |
1540 | ||
1541 | out: | |
1542 | kfree(connector_set); | |
1543 | mutex_unlock(&dev->mode_config.mutex); | |
1544 | return ret; | |
1545 | } | |
1546 | ||
1547 | int drm_mode_cursor_ioctl(struct drm_device *dev, | |
1548 | void *data, struct drm_file *file_priv) | |
1549 | { | |
1550 | struct drm_mode_cursor *req = data; | |
1551 | struct drm_mode_object *obj; | |
1552 | struct drm_crtc *crtc; | |
1553 | int ret = 0; | |
1554 | ||
58367ed6 | 1555 | DRM_DEBUG_KMS("\n"); |
f453ba04 DA |
1556 | |
1557 | if (!req->flags) { | |
1558 | DRM_ERROR("no operation set\n"); | |
1559 | return -EINVAL; | |
1560 | } | |
1561 | ||
1562 | mutex_lock(&dev->mode_config.mutex); | |
e0c8463a | 1563 | obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC); |
f453ba04 | 1564 | if (!obj) { |
58367ed6 | 1565 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); |
f453ba04 DA |
1566 | ret = -EINVAL; |
1567 | goto out; | |
1568 | } | |
1569 | crtc = obj_to_crtc(obj); | |
1570 | ||
1571 | if (req->flags & DRM_MODE_CURSOR_BO) { | |
1572 | if (!crtc->funcs->cursor_set) { | |
1573 | DRM_ERROR("crtc does not support cursor\n"); | |
1574 | ret = -ENXIO; | |
1575 | goto out; | |
1576 | } | |
1577 | /* Turns off the cursor if handle is 0 */ | |
1578 | ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, | |
1579 | req->width, req->height); | |
1580 | } | |
1581 | ||
1582 | if (req->flags & DRM_MODE_CURSOR_MOVE) { | |
1583 | if (crtc->funcs->cursor_move) { | |
1584 | ret = crtc->funcs->cursor_move(crtc, req->x, req->y); | |
1585 | } else { | |
1586 | DRM_ERROR("crtc does not support cursor\n"); | |
1587 | ret = -EFAULT; | |
1588 | goto out; | |
1589 | } | |
1590 | } | |
1591 | out: | |
1592 | mutex_unlock(&dev->mode_config.mutex); | |
1593 | return ret; | |
1594 | } | |
1595 | ||
1596 | /** | |
1597 | * drm_mode_addfb - add an FB to the graphics configuration | |
1598 | * @inode: inode from the ioctl | |
1599 | * @filp: file * from the ioctl | |
1600 | * @cmd: cmd from ioctl | |
1601 | * @arg: arg from ioctl | |
1602 | * | |
1603 | * LOCKING: | |
1604 | * Takes mode config lock. | |
1605 | * | |
1606 | * Add a new FB to the specified CRTC, given a user request. | |
1607 | * | |
1608 | * Called by the user via ioctl. | |
1609 | * | |
1610 | * RETURNS: | |
1611 | * Zero on success, errno on failure. | |
1612 | */ | |
1613 | int drm_mode_addfb(struct drm_device *dev, | |
1614 | void *data, struct drm_file *file_priv) | |
1615 | { | |
1616 | struct drm_mode_fb_cmd *r = data; | |
1617 | struct drm_mode_config *config = &dev->mode_config; | |
1618 | struct drm_framebuffer *fb; | |
1619 | int ret = 0; | |
1620 | ||
1621 | if ((config->min_width > r->width) || (r->width > config->max_width)) { | |
1622 | DRM_ERROR("mode new framebuffer width not within limits\n"); | |
1623 | return -EINVAL; | |
1624 | } | |
1625 | if ((config->min_height > r->height) || (r->height > config->max_height)) { | |
1626 | DRM_ERROR("mode new framebuffer height not within limits\n"); | |
1627 | return -EINVAL; | |
1628 | } | |
1629 | ||
1630 | mutex_lock(&dev->mode_config.mutex); | |
1631 | ||
1632 | /* TODO check buffer is sufficently large */ | |
1633 | /* TODO setup destructor callback */ | |
1634 | ||
1635 | fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); | |
1636 | if (!fb) { | |
1637 | DRM_ERROR("could not create framebuffer\n"); | |
1638 | ret = -EINVAL; | |
1639 | goto out; | |
1640 | } | |
1641 | ||
e0c8463a | 1642 | r->fb_id = fb->base.id; |
f453ba04 DA |
1643 | list_add(&fb->filp_head, &file_priv->fbs); |
1644 | ||
1645 | out: | |
1646 | mutex_unlock(&dev->mode_config.mutex); | |
1647 | return ret; | |
1648 | } | |
1649 | ||
1650 | /** | |
1651 | * drm_mode_rmfb - remove an FB from the configuration | |
1652 | * @inode: inode from the ioctl | |
1653 | * @filp: file * from the ioctl | |
1654 | * @cmd: cmd from ioctl | |
1655 | * @arg: arg from ioctl | |
1656 | * | |
1657 | * LOCKING: | |
1658 | * Takes mode config lock. | |
1659 | * | |
1660 | * Remove the FB specified by the user. | |
1661 | * | |
1662 | * Called by the user via ioctl. | |
1663 | * | |
1664 | * RETURNS: | |
1665 | * Zero on success, errno on failure. | |
1666 | */ | |
1667 | int drm_mode_rmfb(struct drm_device *dev, | |
1668 | void *data, struct drm_file *file_priv) | |
1669 | { | |
1670 | struct drm_mode_object *obj; | |
1671 | struct drm_framebuffer *fb = NULL; | |
1672 | struct drm_framebuffer *fbl = NULL; | |
1673 | uint32_t *id = data; | |
1674 | int ret = 0; | |
1675 | int found = 0; | |
1676 | ||
1677 | mutex_lock(&dev->mode_config.mutex); | |
1678 | obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB); | |
1679 | /* TODO check that we realy get a framebuffer back. */ | |
1680 | if (!obj) { | |
1681 | DRM_ERROR("mode invalid framebuffer id\n"); | |
1682 | ret = -EINVAL; | |
1683 | goto out; | |
1684 | } | |
1685 | fb = obj_to_fb(obj); | |
1686 | ||
1687 | list_for_each_entry(fbl, &file_priv->fbs, filp_head) | |
1688 | if (fb == fbl) | |
1689 | found = 1; | |
1690 | ||
1691 | if (!found) { | |
1692 | DRM_ERROR("tried to remove a fb that we didn't own\n"); | |
1693 | ret = -EINVAL; | |
1694 | goto out; | |
1695 | } | |
1696 | ||
1697 | /* TODO release all crtc connected to the framebuffer */ | |
1698 | /* TODO unhock the destructor from the buffer object */ | |
1699 | ||
1700 | list_del(&fb->filp_head); | |
1701 | fb->funcs->destroy(fb); | |
1702 | ||
1703 | out: | |
1704 | mutex_unlock(&dev->mode_config.mutex); | |
1705 | return ret; | |
1706 | } | |
1707 | ||
1708 | /** | |
1709 | * drm_mode_getfb - get FB info | |
1710 | * @inode: inode from the ioctl | |
1711 | * @filp: file * from the ioctl | |
1712 | * @cmd: cmd from ioctl | |
1713 | * @arg: arg from ioctl | |
1714 | * | |
1715 | * LOCKING: | |
1716 | * Caller? (FIXME) | |
1717 | * | |
1718 | * Lookup the FB given its ID and return info about it. | |
1719 | * | |
1720 | * Called by the user via ioctl. | |
1721 | * | |
1722 | * RETURNS: | |
1723 | * Zero on success, errno on failure. | |
1724 | */ | |
1725 | int drm_mode_getfb(struct drm_device *dev, | |
1726 | void *data, struct drm_file *file_priv) | |
1727 | { | |
1728 | struct drm_mode_fb_cmd *r = data; | |
1729 | struct drm_mode_object *obj; | |
1730 | struct drm_framebuffer *fb; | |
1731 | int ret = 0; | |
1732 | ||
1733 | mutex_lock(&dev->mode_config.mutex); | |
e0c8463a | 1734 | obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB); |
f453ba04 DA |
1735 | if (!obj) { |
1736 | DRM_ERROR("invalid framebuffer id\n"); | |
1737 | ret = -EINVAL; | |
1738 | goto out; | |
1739 | } | |
1740 | fb = obj_to_fb(obj); | |
1741 | ||
1742 | r->height = fb->height; | |
1743 | r->width = fb->width; | |
1744 | r->depth = fb->depth; | |
1745 | r->bpp = fb->bits_per_pixel; | |
1746 | r->pitch = fb->pitch; | |
1747 | fb->funcs->create_handle(fb, file_priv, &r->handle); | |
1748 | ||
1749 | out: | |
1750 | mutex_unlock(&dev->mode_config.mutex); | |
1751 | return ret; | |
1752 | } | |
1753 | ||
1754 | /** | |
1755 | * drm_fb_release - remove and free the FBs on this file | |
1756 | * @filp: file * from the ioctl | |
1757 | * | |
1758 | * LOCKING: | |
1759 | * Takes mode config lock. | |
1760 | * | |
1761 | * Destroy all the FBs associated with @filp. | |
1762 | * | |
1763 | * Called by the user via ioctl. | |
1764 | * | |
1765 | * RETURNS: | |
1766 | * Zero on success, errno on failure. | |
1767 | */ | |
ea39f835 | 1768 | void drm_fb_release(struct drm_file *priv) |
f453ba04 | 1769 | { |
f453ba04 DA |
1770 | struct drm_device *dev = priv->minor->dev; |
1771 | struct drm_framebuffer *fb, *tfb; | |
1772 | ||
1773 | mutex_lock(&dev->mode_config.mutex); | |
1774 | list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { | |
1775 | list_del(&fb->filp_head); | |
1776 | fb->funcs->destroy(fb); | |
1777 | } | |
1778 | mutex_unlock(&dev->mode_config.mutex); | |
1779 | } | |
1780 | ||
1781 | /** | |
1782 | * drm_mode_attachmode - add a mode to the user mode list | |
1783 | * @dev: DRM device | |
1784 | * @connector: connector to add the mode to | |
1785 | * @mode: mode to add | |
1786 | * | |
1787 | * Add @mode to @connector's user mode list. | |
1788 | */ | |
1789 | static int drm_mode_attachmode(struct drm_device *dev, | |
1790 | struct drm_connector *connector, | |
1791 | struct drm_display_mode *mode) | |
1792 | { | |
1793 | int ret = 0; | |
1794 | ||
1795 | list_add_tail(&mode->head, &connector->user_modes); | |
1796 | return ret; | |
1797 | } | |
1798 | ||
1799 | int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc, | |
1800 | struct drm_display_mode *mode) | |
1801 | { | |
1802 | struct drm_connector *connector; | |
1803 | int ret = 0; | |
1804 | struct drm_display_mode *dup_mode; | |
1805 | int need_dup = 0; | |
1806 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
1807 | if (!connector->encoder) | |
1808 | break; | |
1809 | if (connector->encoder->crtc == crtc) { | |
1810 | if (need_dup) | |
1811 | dup_mode = drm_mode_duplicate(dev, mode); | |
1812 | else | |
1813 | dup_mode = mode; | |
1814 | ret = drm_mode_attachmode(dev, connector, dup_mode); | |
1815 | if (ret) | |
1816 | return ret; | |
1817 | need_dup = 1; | |
1818 | } | |
1819 | } | |
1820 | return 0; | |
1821 | } | |
1822 | EXPORT_SYMBOL(drm_mode_attachmode_crtc); | |
1823 | ||
1824 | static int drm_mode_detachmode(struct drm_device *dev, | |
1825 | struct drm_connector *connector, | |
1826 | struct drm_display_mode *mode) | |
1827 | { | |
1828 | int found = 0; | |
1829 | int ret = 0; | |
1830 | struct drm_display_mode *match_mode, *t; | |
1831 | ||
1832 | list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) { | |
1833 | if (drm_mode_equal(match_mode, mode)) { | |
1834 | list_del(&match_mode->head); | |
1835 | drm_mode_destroy(dev, match_mode); | |
1836 | found = 1; | |
1837 | break; | |
1838 | } | |
1839 | } | |
1840 | ||
1841 | if (!found) | |
1842 | ret = -EINVAL; | |
1843 | ||
1844 | return ret; | |
1845 | } | |
1846 | ||
1847 | int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode) | |
1848 | { | |
1849 | struct drm_connector *connector; | |
1850 | ||
1851 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
1852 | drm_mode_detachmode(dev, connector, mode); | |
1853 | } | |
1854 | return 0; | |
1855 | } | |
1856 | EXPORT_SYMBOL(drm_mode_detachmode_crtc); | |
1857 | ||
1858 | /** | |
1859 | * drm_fb_attachmode - Attach a user mode to an connector | |
1860 | * @inode: inode from the ioctl | |
1861 | * @filp: file * from the ioctl | |
1862 | * @cmd: cmd from ioctl | |
1863 | * @arg: arg from ioctl | |
1864 | * | |
1865 | * This attaches a user specified mode to an connector. | |
1866 | * Called by the user via ioctl. | |
1867 | * | |
1868 | * RETURNS: | |
1869 | * Zero on success, errno on failure. | |
1870 | */ | |
1871 | int drm_mode_attachmode_ioctl(struct drm_device *dev, | |
1872 | void *data, struct drm_file *file_priv) | |
1873 | { | |
1874 | struct drm_mode_mode_cmd *mode_cmd = data; | |
1875 | struct drm_connector *connector; | |
1876 | struct drm_display_mode *mode; | |
1877 | struct drm_mode_object *obj; | |
1878 | struct drm_mode_modeinfo *umode = &mode_cmd->mode; | |
1879 | int ret = 0; | |
1880 | ||
1881 | mutex_lock(&dev->mode_config.mutex); | |
1882 | ||
1883 | obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR); | |
1884 | if (!obj) { | |
1885 | ret = -EINVAL; | |
1886 | goto out; | |
1887 | } | |
1888 | connector = obj_to_connector(obj); | |
1889 | ||
1890 | mode = drm_mode_create(dev); | |
1891 | if (!mode) { | |
1892 | ret = -ENOMEM; | |
1893 | goto out; | |
1894 | } | |
1895 | ||
1896 | drm_crtc_convert_umode(mode, umode); | |
1897 | ||
1898 | ret = drm_mode_attachmode(dev, connector, mode); | |
1899 | out: | |
1900 | mutex_unlock(&dev->mode_config.mutex); | |
1901 | return ret; | |
1902 | } | |
1903 | ||
1904 | ||
1905 | /** | |
1906 | * drm_fb_detachmode - Detach a user specified mode from an connector | |
1907 | * @inode: inode from the ioctl | |
1908 | * @filp: file * from the ioctl | |
1909 | * @cmd: cmd from ioctl | |
1910 | * @arg: arg from ioctl | |
1911 | * | |
1912 | * Called by the user via ioctl. | |
1913 | * | |
1914 | * RETURNS: | |
1915 | * Zero on success, errno on failure. | |
1916 | */ | |
1917 | int drm_mode_detachmode_ioctl(struct drm_device *dev, | |
1918 | void *data, struct drm_file *file_priv) | |
1919 | { | |
1920 | struct drm_mode_object *obj; | |
1921 | struct drm_mode_mode_cmd *mode_cmd = data; | |
1922 | struct drm_connector *connector; | |
1923 | struct drm_display_mode mode; | |
1924 | struct drm_mode_modeinfo *umode = &mode_cmd->mode; | |
1925 | int ret = 0; | |
1926 | ||
1927 | mutex_lock(&dev->mode_config.mutex); | |
1928 | ||
1929 | obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR); | |
1930 | if (!obj) { | |
1931 | ret = -EINVAL; | |
1932 | goto out; | |
1933 | } | |
1934 | connector = obj_to_connector(obj); | |
1935 | ||
1936 | drm_crtc_convert_umode(&mode, umode); | |
1937 | ret = drm_mode_detachmode(dev, connector, &mode); | |
1938 | out: | |
1939 | mutex_unlock(&dev->mode_config.mutex); | |
1940 | return ret; | |
1941 | } | |
1942 | ||
1943 | struct drm_property *drm_property_create(struct drm_device *dev, int flags, | |
1944 | const char *name, int num_values) | |
1945 | { | |
1946 | struct drm_property *property = NULL; | |
1947 | ||
1948 | property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); | |
1949 | if (!property) | |
1950 | return NULL; | |
1951 | ||
1952 | if (num_values) { | |
1953 | property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL); | |
1954 | if (!property->values) | |
1955 | goto fail; | |
1956 | } | |
1957 | ||
1958 | drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); | |
1959 | property->flags = flags; | |
1960 | property->num_values = num_values; | |
1961 | INIT_LIST_HEAD(&property->enum_blob_list); | |
1962 | ||
1963 | if (name) | |
1964 | strncpy(property->name, name, DRM_PROP_NAME_LEN); | |
1965 | ||
1966 | list_add_tail(&property->head, &dev->mode_config.property_list); | |
1967 | return property; | |
1968 | fail: | |
1969 | kfree(property); | |
1970 | return NULL; | |
1971 | } | |
1972 | EXPORT_SYMBOL(drm_property_create); | |
1973 | ||
1974 | int drm_property_add_enum(struct drm_property *property, int index, | |
1975 | uint64_t value, const char *name) | |
1976 | { | |
1977 | struct drm_property_enum *prop_enum; | |
1978 | ||
1979 | if (!(property->flags & DRM_MODE_PROP_ENUM)) | |
1980 | return -EINVAL; | |
1981 | ||
1982 | if (!list_empty(&property->enum_blob_list)) { | |
1983 | list_for_each_entry(prop_enum, &property->enum_blob_list, head) { | |
1984 | if (prop_enum->value == value) { | |
1985 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
1986 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
1987 | return 0; | |
1988 | } | |
1989 | } | |
1990 | } | |
1991 | ||
1992 | prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); | |
1993 | if (!prop_enum) | |
1994 | return -ENOMEM; | |
1995 | ||
1996 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); | |
1997 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; | |
1998 | prop_enum->value = value; | |
1999 | ||
2000 | property->values[index] = value; | |
2001 | list_add_tail(&prop_enum->head, &property->enum_blob_list); | |
2002 | return 0; | |
2003 | } | |
2004 | EXPORT_SYMBOL(drm_property_add_enum); | |
2005 | ||
2006 | void drm_property_destroy(struct drm_device *dev, struct drm_property *property) | |
2007 | { | |
2008 | struct drm_property_enum *prop_enum, *pt; | |
2009 | ||
2010 | list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) { | |
2011 | list_del(&prop_enum->head); | |
2012 | kfree(prop_enum); | |
2013 | } | |
2014 | ||
2015 | if (property->num_values) | |
2016 | kfree(property->values); | |
2017 | drm_mode_object_put(dev, &property->base); | |
2018 | list_del(&property->head); | |
2019 | kfree(property); | |
2020 | } | |
2021 | EXPORT_SYMBOL(drm_property_destroy); | |
2022 | ||
2023 | int drm_connector_attach_property(struct drm_connector *connector, | |
2024 | struct drm_property *property, uint64_t init_val) | |
2025 | { | |
2026 | int i; | |
2027 | ||
2028 | for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) { | |
2029 | if (connector->property_ids[i] == 0) { | |
2030 | connector->property_ids[i] = property->base.id; | |
2031 | connector->property_values[i] = init_val; | |
2032 | break; | |
2033 | } | |
2034 | } | |
2035 | ||
2036 | if (i == DRM_CONNECTOR_MAX_PROPERTY) | |
2037 | return -EINVAL; | |
2038 | return 0; | |
2039 | } | |
2040 | EXPORT_SYMBOL(drm_connector_attach_property); | |
2041 | ||
2042 | int drm_connector_property_set_value(struct drm_connector *connector, | |
2043 | struct drm_property *property, uint64_t value) | |
2044 | { | |
2045 | int i; | |
2046 | ||
2047 | for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) { | |
2048 | if (connector->property_ids[i] == property->base.id) { | |
2049 | connector->property_values[i] = value; | |
2050 | break; | |
2051 | } | |
2052 | } | |
2053 | ||
2054 | if (i == DRM_CONNECTOR_MAX_PROPERTY) | |
2055 | return -EINVAL; | |
2056 | return 0; | |
2057 | } | |
2058 | EXPORT_SYMBOL(drm_connector_property_set_value); | |
2059 | ||
2060 | int drm_connector_property_get_value(struct drm_connector *connector, | |
2061 | struct drm_property *property, uint64_t *val) | |
2062 | { | |
2063 | int i; | |
2064 | ||
2065 | for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) { | |
2066 | if (connector->property_ids[i] == property->base.id) { | |
2067 | *val = connector->property_values[i]; | |
2068 | break; | |
2069 | } | |
2070 | } | |
2071 | ||
2072 | if (i == DRM_CONNECTOR_MAX_PROPERTY) | |
2073 | return -EINVAL; | |
2074 | return 0; | |
2075 | } | |
2076 | EXPORT_SYMBOL(drm_connector_property_get_value); | |
2077 | ||
2078 | int drm_mode_getproperty_ioctl(struct drm_device *dev, | |
2079 | void *data, struct drm_file *file_priv) | |
2080 | { | |
2081 | struct drm_mode_object *obj; | |
2082 | struct drm_mode_get_property *out_resp = data; | |
2083 | struct drm_property *property; | |
2084 | int enum_count = 0; | |
2085 | int blob_count = 0; | |
2086 | int value_count = 0; | |
2087 | int ret = 0, i; | |
2088 | int copied; | |
2089 | struct drm_property_enum *prop_enum; | |
2090 | struct drm_mode_property_enum __user *enum_ptr; | |
2091 | struct drm_property_blob *prop_blob; | |
2092 | uint32_t *blob_id_ptr; | |
2093 | uint64_t __user *values_ptr; | |
2094 | uint32_t __user *blob_length_ptr; | |
2095 | ||
2096 | mutex_lock(&dev->mode_config.mutex); | |
2097 | obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY); | |
2098 | if (!obj) { | |
2099 | ret = -EINVAL; | |
2100 | goto done; | |
2101 | } | |
2102 | property = obj_to_property(obj); | |
2103 | ||
2104 | if (property->flags & DRM_MODE_PROP_ENUM) { | |
2105 | list_for_each_entry(prop_enum, &property->enum_blob_list, head) | |
2106 | enum_count++; | |
2107 | } else if (property->flags & DRM_MODE_PROP_BLOB) { | |
2108 | list_for_each_entry(prop_blob, &property->enum_blob_list, head) | |
2109 | blob_count++; | |
2110 | } | |
2111 | ||
2112 | value_count = property->num_values; | |
2113 | ||
2114 | strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); | |
2115 | out_resp->name[DRM_PROP_NAME_LEN-1] = 0; | |
2116 | out_resp->flags = property->flags; | |
2117 | ||
2118 | if ((out_resp->count_values >= value_count) && value_count) { | |
2119 | values_ptr = (uint64_t *)(unsigned long)out_resp->values_ptr; | |
2120 | for (i = 0; i < value_count; i++) { | |
2121 | if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { | |
2122 | ret = -EFAULT; | |
2123 | goto done; | |
2124 | } | |
2125 | } | |
2126 | } | |
2127 | out_resp->count_values = value_count; | |
2128 | ||
2129 | if (property->flags & DRM_MODE_PROP_ENUM) { | |
2130 | if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { | |
2131 | copied = 0; | |
2132 | enum_ptr = (struct drm_mode_property_enum *)(unsigned long)out_resp->enum_blob_ptr; | |
2133 | list_for_each_entry(prop_enum, &property->enum_blob_list, head) { | |
2134 | ||
2135 | if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { | |
2136 | ret = -EFAULT; | |
2137 | goto done; | |
2138 | } | |
2139 | ||
2140 | if (copy_to_user(&enum_ptr[copied].name, | |
2141 | &prop_enum->name, DRM_PROP_NAME_LEN)) { | |
2142 | ret = -EFAULT; | |
2143 | goto done; | |
2144 | } | |
2145 | copied++; | |
2146 | } | |
2147 | } | |
2148 | out_resp->count_enum_blobs = enum_count; | |
2149 | } | |
2150 | ||
2151 | if (property->flags & DRM_MODE_PROP_BLOB) { | |
2152 | if ((out_resp->count_enum_blobs >= blob_count) && blob_count) { | |
2153 | copied = 0; | |
2154 | blob_id_ptr = (uint32_t *)(unsigned long)out_resp->enum_blob_ptr; | |
2155 | blob_length_ptr = (uint32_t *)(unsigned long)out_resp->values_ptr; | |
2156 | ||
2157 | list_for_each_entry(prop_blob, &property->enum_blob_list, head) { | |
2158 | if (put_user(prop_blob->base.id, blob_id_ptr + copied)) { | |
2159 | ret = -EFAULT; | |
2160 | goto done; | |
2161 | } | |
2162 | ||
2163 | if (put_user(prop_blob->length, blob_length_ptr + copied)) { | |
2164 | ret = -EFAULT; | |
2165 | goto done; | |
2166 | } | |
2167 | ||
2168 | copied++; | |
2169 | } | |
2170 | } | |
2171 | out_resp->count_enum_blobs = blob_count; | |
2172 | } | |
2173 | done: | |
2174 | mutex_unlock(&dev->mode_config.mutex); | |
2175 | return ret; | |
2176 | } | |
2177 | ||
2178 | static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length, | |
2179 | void *data) | |
2180 | { | |
2181 | struct drm_property_blob *blob; | |
2182 | ||
2183 | if (!length || !data) | |
2184 | return NULL; | |
2185 | ||
2186 | blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); | |
2187 | if (!blob) | |
2188 | return NULL; | |
2189 | ||
2190 | blob->data = (void *)((char *)blob + sizeof(struct drm_property_blob)); | |
2191 | blob->length = length; | |
2192 | ||
2193 | memcpy(blob->data, data, length); | |
2194 | ||
2195 | drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB); | |
2196 | ||
2197 | list_add_tail(&blob->head, &dev->mode_config.property_blob_list); | |
2198 | return blob; | |
2199 | } | |
2200 | ||
2201 | static void drm_property_destroy_blob(struct drm_device *dev, | |
2202 | struct drm_property_blob *blob) | |
2203 | { | |
2204 | drm_mode_object_put(dev, &blob->base); | |
2205 | list_del(&blob->head); | |
2206 | kfree(blob); | |
2207 | } | |
2208 | ||
2209 | int drm_mode_getblob_ioctl(struct drm_device *dev, | |
2210 | void *data, struct drm_file *file_priv) | |
2211 | { | |
2212 | struct drm_mode_object *obj; | |
2213 | struct drm_mode_get_blob *out_resp = data; | |
2214 | struct drm_property_blob *blob; | |
2215 | int ret = 0; | |
2216 | void *blob_ptr; | |
2217 | ||
2218 | mutex_lock(&dev->mode_config.mutex); | |
2219 | obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB); | |
2220 | if (!obj) { | |
2221 | ret = -EINVAL; | |
2222 | goto done; | |
2223 | } | |
2224 | blob = obj_to_blob(obj); | |
2225 | ||
2226 | if (out_resp->length == blob->length) { | |
2227 | blob_ptr = (void *)(unsigned long)out_resp->data; | |
2228 | if (copy_to_user(blob_ptr, blob->data, blob->length)){ | |
2229 | ret = -EFAULT; | |
2230 | goto done; | |
2231 | } | |
2232 | } | |
2233 | out_resp->length = blob->length; | |
2234 | ||
2235 | done: | |
2236 | mutex_unlock(&dev->mode_config.mutex); | |
2237 | return ret; | |
2238 | } | |
2239 | ||
2240 | int drm_mode_connector_update_edid_property(struct drm_connector *connector, | |
2241 | struct edid *edid) | |
2242 | { | |
2243 | struct drm_device *dev = connector->dev; | |
2244 | int ret = 0; | |
2245 | ||
2246 | if (connector->edid_blob_ptr) | |
2247 | drm_property_destroy_blob(dev, connector->edid_blob_ptr); | |
2248 | ||
2249 | /* Delete edid, when there is none. */ | |
2250 | if (!edid) { | |
2251 | connector->edid_blob_ptr = NULL; | |
2252 | ret = drm_connector_property_set_value(connector, dev->mode_config.edid_property, 0); | |
2253 | return ret; | |
2254 | } | |
2255 | ||
2256 | connector->edid_blob_ptr = drm_property_create_blob(connector->dev, 128, edid); | |
2257 | ||
2258 | ret = drm_connector_property_set_value(connector, | |
2259 | dev->mode_config.edid_property, | |
2260 | connector->edid_blob_ptr->base.id); | |
2261 | ||
2262 | return ret; | |
2263 | } | |
2264 | EXPORT_SYMBOL(drm_mode_connector_update_edid_property); | |
2265 | ||
2266 | int drm_mode_connector_property_set_ioctl(struct drm_device *dev, | |
2267 | void *data, struct drm_file *file_priv) | |
2268 | { | |
2269 | struct drm_mode_connector_set_property *out_resp = data; | |
2270 | struct drm_mode_object *obj; | |
2271 | struct drm_property *property; | |
2272 | struct drm_connector *connector; | |
2273 | int ret = -EINVAL; | |
2274 | int i; | |
2275 | ||
2276 | mutex_lock(&dev->mode_config.mutex); | |
2277 | ||
2278 | obj = drm_mode_object_find(dev, out_resp->connector_id, DRM_MODE_OBJECT_CONNECTOR); | |
2279 | if (!obj) { | |
2280 | goto out; | |
2281 | } | |
2282 | connector = obj_to_connector(obj); | |
2283 | ||
2284 | for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) { | |
2285 | if (connector->property_ids[i] == out_resp->prop_id) | |
2286 | break; | |
2287 | } | |
2288 | ||
2289 | if (i == DRM_CONNECTOR_MAX_PROPERTY) { | |
2290 | goto out; | |
2291 | } | |
2292 | ||
2293 | obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY); | |
2294 | if (!obj) { | |
2295 | goto out; | |
2296 | } | |
2297 | property = obj_to_property(obj); | |
2298 | ||
2299 | if (property->flags & DRM_MODE_PROP_IMMUTABLE) | |
2300 | goto out; | |
2301 | ||
2302 | if (property->flags & DRM_MODE_PROP_RANGE) { | |
2303 | if (out_resp->value < property->values[0]) | |
2304 | goto out; | |
2305 | ||
2306 | if (out_resp->value > property->values[1]) | |
2307 | goto out; | |
2308 | } else { | |
2309 | int found = 0; | |
2310 | for (i = 0; i < property->num_values; i++) { | |
2311 | if (property->values[i] == out_resp->value) { | |
2312 | found = 1; | |
2313 | break; | |
2314 | } | |
2315 | } | |
2316 | if (!found) { | |
2317 | goto out; | |
2318 | } | |
2319 | } | |
2320 | ||
c9fb15f6 KP |
2321 | /* Do DPMS ourselves */ |
2322 | if (property == connector->dev->mode_config.dpms_property) { | |
2323 | if (connector->funcs->dpms) | |
2324 | (*connector->funcs->dpms)(connector, (int) out_resp->value); | |
2325 | ret = 0; | |
2326 | } else if (connector->funcs->set_property) | |
f453ba04 DA |
2327 | ret = connector->funcs->set_property(connector, property, out_resp->value); |
2328 | ||
2329 | /* store the property value if succesful */ | |
2330 | if (!ret) | |
2331 | drm_connector_property_set_value(connector, property, out_resp->value); | |
2332 | out: | |
2333 | mutex_unlock(&dev->mode_config.mutex); | |
2334 | return ret; | |
2335 | } | |
2336 | ||
f453ba04 DA |
2337 | int drm_mode_connector_attach_encoder(struct drm_connector *connector, |
2338 | struct drm_encoder *encoder) | |
2339 | { | |
2340 | int i; | |
2341 | ||
2342 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { | |
2343 | if (connector->encoder_ids[i] == 0) { | |
2344 | connector->encoder_ids[i] = encoder->base.id; | |
2345 | return 0; | |
2346 | } | |
2347 | } | |
2348 | return -ENOMEM; | |
2349 | } | |
2350 | EXPORT_SYMBOL(drm_mode_connector_attach_encoder); | |
2351 | ||
2352 | void drm_mode_connector_detach_encoder(struct drm_connector *connector, | |
2353 | struct drm_encoder *encoder) | |
2354 | { | |
2355 | int i; | |
2356 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { | |
2357 | if (connector->encoder_ids[i] == encoder->base.id) { | |
2358 | connector->encoder_ids[i] = 0; | |
2359 | if (connector->encoder == encoder) | |
2360 | connector->encoder = NULL; | |
2361 | break; | |
2362 | } | |
2363 | } | |
2364 | } | |
2365 | EXPORT_SYMBOL(drm_mode_connector_detach_encoder); | |
2366 | ||
2367 | bool drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, | |
2368 | int gamma_size) | |
2369 | { | |
2370 | crtc->gamma_size = gamma_size; | |
2371 | ||
2372 | crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL); | |
2373 | if (!crtc->gamma_store) { | |
2374 | crtc->gamma_size = 0; | |
2375 | return false; | |
2376 | } | |
2377 | ||
2378 | return true; | |
2379 | } | |
2380 | EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); | |
2381 | ||
2382 | int drm_mode_gamma_set_ioctl(struct drm_device *dev, | |
2383 | void *data, struct drm_file *file_priv) | |
2384 | { | |
2385 | struct drm_mode_crtc_lut *crtc_lut = data; | |
2386 | struct drm_mode_object *obj; | |
2387 | struct drm_crtc *crtc; | |
2388 | void *r_base, *g_base, *b_base; | |
2389 | int size; | |
2390 | int ret = 0; | |
2391 | ||
2392 | mutex_lock(&dev->mode_config.mutex); | |
2393 | obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC); | |
2394 | if (!obj) { | |
2395 | ret = -EINVAL; | |
2396 | goto out; | |
2397 | } | |
2398 | crtc = obj_to_crtc(obj); | |
2399 | ||
2400 | /* memcpy into gamma store */ | |
2401 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
2402 | ret = -EINVAL; | |
2403 | goto out; | |
2404 | } | |
2405 | ||
2406 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
2407 | r_base = crtc->gamma_store; | |
2408 | if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { | |
2409 | ret = -EFAULT; | |
2410 | goto out; | |
2411 | } | |
2412 | ||
2413 | g_base = r_base + size; | |
2414 | if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { | |
2415 | ret = -EFAULT; | |
2416 | goto out; | |
2417 | } | |
2418 | ||
2419 | b_base = g_base + size; | |
2420 | if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { | |
2421 | ret = -EFAULT; | |
2422 | goto out; | |
2423 | } | |
2424 | ||
2425 | crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, crtc->gamma_size); | |
2426 | ||
2427 | out: | |
2428 | mutex_unlock(&dev->mode_config.mutex); | |
2429 | return ret; | |
2430 | ||
2431 | } | |
2432 | ||
2433 | int drm_mode_gamma_get_ioctl(struct drm_device *dev, | |
2434 | void *data, struct drm_file *file_priv) | |
2435 | { | |
2436 | struct drm_mode_crtc_lut *crtc_lut = data; | |
2437 | struct drm_mode_object *obj; | |
2438 | struct drm_crtc *crtc; | |
2439 | void *r_base, *g_base, *b_base; | |
2440 | int size; | |
2441 | int ret = 0; | |
2442 | ||
2443 | mutex_lock(&dev->mode_config.mutex); | |
2444 | obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC); | |
2445 | if (!obj) { | |
2446 | ret = -EINVAL; | |
2447 | goto out; | |
2448 | } | |
2449 | crtc = obj_to_crtc(obj); | |
2450 | ||
2451 | /* memcpy into gamma store */ | |
2452 | if (crtc_lut->gamma_size != crtc->gamma_size) { | |
2453 | ret = -EINVAL; | |
2454 | goto out; | |
2455 | } | |
2456 | ||
2457 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); | |
2458 | r_base = crtc->gamma_store; | |
2459 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { | |
2460 | ret = -EFAULT; | |
2461 | goto out; | |
2462 | } | |
2463 | ||
2464 | g_base = r_base + size; | |
2465 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { | |
2466 | ret = -EFAULT; | |
2467 | goto out; | |
2468 | } | |
2469 | ||
2470 | b_base = g_base + size; | |
2471 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { | |
2472 | ret = -EFAULT; | |
2473 | goto out; | |
2474 | } | |
2475 | out: | |
2476 | mutex_unlock(&dev->mode_config.mutex); | |
2477 | return ret; | |
2478 | } |