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 <linux/slab.h> 34 #include <linux/export.h> 35 #include "drm.h" 36 #include "drmP.h" 37 #include "drm_crtc.h" 38 #include "drm_edid.h" 39 #include "drm_fourcc.h" 40 41 /* Avoid boilerplate. I'm tired of typing. */ 42 #define DRM_ENUM_NAME_FN(fnname, list) \ 43 char *fnname(int val) \ 44 { \ 45 int i; \ 46 for (i = 0; i < ARRAY_SIZE(list); i++) { \ 47 if (list[i].type == val) \ 48 return list[i].name; \ 49 } \ 50 return "(unknown)"; \ 51 } 52 53 /* 54 * Global properties 55 */ 56 static struct drm_prop_enum_list drm_dpms_enum_list[] = 57 { { DRM_MODE_DPMS_ON, "On" }, 58 { DRM_MODE_DPMS_STANDBY, "Standby" }, 59 { DRM_MODE_DPMS_SUSPEND, "Suspend" }, 60 { DRM_MODE_DPMS_OFF, "Off" } 61 }; 62 63 DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list) 64 65 /* 66 * Optional properties 67 */ 68 static struct drm_prop_enum_list drm_scaling_mode_enum_list[] = 69 { 70 { DRM_MODE_SCALE_NONE, "None" }, 71 { DRM_MODE_SCALE_FULLSCREEN, "Full" }, 72 { DRM_MODE_SCALE_CENTER, "Center" }, 73 { DRM_MODE_SCALE_ASPECT, "Full aspect" }, 74 }; 75 76 static struct drm_prop_enum_list drm_dithering_mode_enum_list[] = 77 { 78 { DRM_MODE_DITHERING_OFF, "Off" }, 79 { DRM_MODE_DITHERING_ON, "On" }, 80 { DRM_MODE_DITHERING_AUTO, "Automatic" }, 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 */ 111 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ 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 */ 122 { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ 123 }; 124 125 DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, 126 drm_tv_subconnector_enum_list) 127 128 static struct drm_prop_enum_list drm_dirty_info_enum_list[] = { 129 { DRM_MODE_DIRTY_OFF, "Off" }, 130 { DRM_MODE_DIRTY_ON, "On" }, 131 { DRM_MODE_DIRTY_ANNOTATE, "Annotate" }, 132 }; 133 134 DRM_ENUM_NAME_FN(drm_get_dirty_info_name, 135 drm_dirty_info_enum_list) 136 137 struct drm_conn_prop_enum_list { 138 int type; 139 char *name; 140 int count; 141 }; 142 143 /* 144 * Connector and encoder types. 145 */ 146 static struct drm_conn_prop_enum_list drm_connector_enum_list[] = 147 { { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 }, 148 { DRM_MODE_CONNECTOR_VGA, "VGA", 0 }, 149 { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 }, 150 { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 }, 151 { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 }, 152 { DRM_MODE_CONNECTOR_Composite, "Composite", 0 }, 153 { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 }, 154 { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 }, 155 { DRM_MODE_CONNECTOR_Component, "Component", 0 }, 156 { DRM_MODE_CONNECTOR_9PinDIN, "DIN", 0 }, 157 { DRM_MODE_CONNECTOR_DisplayPort, "DP", 0 }, 158 { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A", 0 }, 159 { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B", 0 }, 160 { DRM_MODE_CONNECTOR_TV, "TV", 0 }, 161 { DRM_MODE_CONNECTOR_eDP, "eDP", 0 }, 162 { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual", 0}, 163 }; 164 165 static struct drm_prop_enum_list drm_encoder_enum_list[] = 166 { { DRM_MODE_ENCODER_NONE, "None" }, 167 { DRM_MODE_ENCODER_DAC, "DAC" }, 168 { DRM_MODE_ENCODER_TMDS, "TMDS" }, 169 { DRM_MODE_ENCODER_LVDS, "LVDS" }, 170 { DRM_MODE_ENCODER_TVDAC, "TV" }, 171 { DRM_MODE_ENCODER_VIRTUAL, "Virtual" }, 172 }; 173 174 char *drm_get_encoder_name(struct drm_encoder *encoder) 175 { 176 static char buf[32]; 177 178 snprintf(buf, 32, "%s-%d", 179 drm_encoder_enum_list[encoder->encoder_type].name, 180 encoder->base.id); 181 return buf; 182 } 183 EXPORT_SYMBOL(drm_get_encoder_name); 184 185 char *drm_get_connector_name(struct drm_connector *connector) 186 { 187 static char buf[32]; 188 189 snprintf(buf, 32, "%s-%d", 190 drm_connector_enum_list[connector->connector_type].name, 191 connector->connector_type_id); 192 return buf; 193 } 194 EXPORT_SYMBOL(drm_get_connector_name); 195 196 char *drm_get_connector_status_name(enum drm_connector_status status) 197 { 198 if (status == connector_status_connected) 199 return "connected"; 200 else if (status == connector_status_disconnected) 201 return "disconnected"; 202 else 203 return "unknown"; 204 } 205 206 /** 207 * drm_mode_object_get - allocate a new identifier 208 * @dev: DRM device 209 * @ptr: object pointer, used to generate unique ID 210 * @type: object type 211 * 212 * LOCKING: 213 * 214 * Create a unique identifier based on @ptr in @dev's identifier space. Used 215 * for tracking modes, CRTCs and connectors. 216 * 217 * RETURNS: 218 * New unique (relative to other objects in @dev) integer identifier for the 219 * object. 220 */ 221 static int drm_mode_object_get(struct drm_device *dev, 222 struct drm_mode_object *obj, uint32_t obj_type) 223 { 224 int new_id = 0; 225 int ret; 226 227 again: 228 if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) { 229 DRM_ERROR("Ran out memory getting a mode number\n"); 230 return -EINVAL; 231 } 232 233 mutex_lock(&dev->mode_config.idr_mutex); 234 ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id); 235 mutex_unlock(&dev->mode_config.idr_mutex); 236 if (ret == -EAGAIN) 237 goto again; 238 239 obj->id = new_id; 240 obj->type = obj_type; 241 return 0; 242 } 243 244 /** 245 * drm_mode_object_put - free an identifer 246 * @dev: DRM device 247 * @id: ID to free 248 * 249 * LOCKING: 250 * Caller must hold DRM mode_config lock. 251 * 252 * Free @id from @dev's unique identifier pool. 253 */ 254 static void drm_mode_object_put(struct drm_device *dev, 255 struct drm_mode_object *object) 256 { 257 mutex_lock(&dev->mode_config.idr_mutex); 258 idr_remove(&dev->mode_config.crtc_idr, object->id); 259 mutex_unlock(&dev->mode_config.idr_mutex); 260 } 261 262 struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, 263 uint32_t id, uint32_t type) 264 { 265 struct drm_mode_object *obj = NULL; 266 267 mutex_lock(&dev->mode_config.idr_mutex); 268 obj = idr_find(&dev->mode_config.crtc_idr, id); 269 if (!obj || (obj->type != type) || (obj->id != id)) 270 obj = NULL; 271 mutex_unlock(&dev->mode_config.idr_mutex); 272 273 return obj; 274 } 275 EXPORT_SYMBOL(drm_mode_object_find); 276 277 /** 278 * drm_framebuffer_init - initialize a framebuffer 279 * @dev: DRM device 280 * 281 * LOCKING: 282 * Caller must hold mode config lock. 283 * 284 * Allocates an ID for the framebuffer's parent mode object, sets its mode 285 * functions & device file and adds it to the master fd list. 286 * 287 * RETURNS: 288 * Zero on success, error code on failure. 289 */ 290 int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, 291 const struct drm_framebuffer_funcs *funcs) 292 { 293 int ret; 294 295 ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB); 296 if (ret) 297 return ret; 298 299 fb->dev = dev; 300 fb->funcs = funcs; 301 dev->mode_config.num_fb++; 302 list_add(&fb->head, &dev->mode_config.fb_list); 303 304 return 0; 305 } 306 EXPORT_SYMBOL(drm_framebuffer_init); 307 308 /** 309 * drm_framebuffer_cleanup - remove a framebuffer object 310 * @fb: framebuffer to remove 311 * 312 * LOCKING: 313 * Caller must hold mode config lock. 314 * 315 * Scans all the CRTCs in @dev's mode_config. If they're using @fb, removes 316 * it, setting it to NULL. 317 */ 318 void drm_framebuffer_cleanup(struct drm_framebuffer *fb) 319 { 320 struct drm_device *dev = fb->dev; 321 struct drm_crtc *crtc; 322 struct drm_plane *plane; 323 struct drm_mode_set set; 324 int ret; 325 326 /* remove from any CRTC */ 327 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 328 if (crtc->fb == fb) { 329 /* should turn off the crtc */ 330 memset(&set, 0, sizeof(struct drm_mode_set)); 331 set.crtc = crtc; 332 set.fb = NULL; 333 ret = crtc->funcs->set_config(&set); 334 if (ret) 335 DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc); 336 } 337 } 338 339 list_for_each_entry(plane, &dev->mode_config.plane_list, head) { 340 if (plane->fb == fb) { 341 /* should turn off the crtc */ 342 ret = plane->funcs->disable_plane(plane); 343 if (ret) 344 DRM_ERROR("failed to disable plane with busy fb\n"); 345 /* disconnect the plane from the fb and crtc: */ 346 plane->fb = NULL; 347 plane->crtc = NULL; 348 } 349 } 350 351 drm_mode_object_put(dev, &fb->base); 352 list_del(&fb->head); 353 dev->mode_config.num_fb--; 354 } 355 EXPORT_SYMBOL(drm_framebuffer_cleanup); 356 357 /** 358 * drm_crtc_init - Initialise a new CRTC object 359 * @dev: DRM device 360 * @crtc: CRTC object to init 361 * @funcs: callbacks for the new CRTC 362 * 363 * LOCKING: 364 * Caller must hold mode config lock. 365 * 366 * Inits a new object created as base part of an driver crtc object. 367 * 368 * RETURNS: 369 * Zero on success, error code on failure. 370 */ 371 int drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc, 372 const struct drm_crtc_funcs *funcs) 373 { 374 int ret; 375 376 crtc->dev = dev; 377 crtc->funcs = funcs; 378 379 mutex_lock(&dev->mode_config.mutex); 380 381 ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); 382 if (ret) 383 goto out; 384 385 list_add_tail(&crtc->head, &dev->mode_config.crtc_list); 386 dev->mode_config.num_crtc++; 387 388 out: 389 mutex_unlock(&dev->mode_config.mutex); 390 391 return ret; 392 } 393 EXPORT_SYMBOL(drm_crtc_init); 394 395 /** 396 * drm_crtc_cleanup - Cleans up the core crtc usage. 397 * @crtc: CRTC to cleanup 398 * 399 * LOCKING: 400 * Caller must hold mode config lock. 401 * 402 * Cleanup @crtc. Removes from drm modesetting space 403 * does NOT free object, caller does that. 404 */ 405 void drm_crtc_cleanup(struct drm_crtc *crtc) 406 { 407 struct drm_device *dev = crtc->dev; 408 409 if (crtc->gamma_store) { 410 kfree(crtc->gamma_store); 411 crtc->gamma_store = NULL; 412 } 413 414 drm_mode_object_put(dev, &crtc->base); 415 list_del(&crtc->head); 416 dev->mode_config.num_crtc--; 417 } 418 EXPORT_SYMBOL(drm_crtc_cleanup); 419 420 /** 421 * drm_mode_probed_add - add a mode to a connector's probed mode list 422 * @connector: connector the new mode 423 * @mode: mode data 424 * 425 * LOCKING: 426 * Caller must hold mode config lock. 427 * 428 * Add @mode to @connector's mode list for later use. 429 */ 430 void drm_mode_probed_add(struct drm_connector *connector, 431 struct drm_display_mode *mode) 432 { 433 list_add(&mode->head, &connector->probed_modes); 434 } 435 EXPORT_SYMBOL(drm_mode_probed_add); 436 437 /** 438 * drm_mode_remove - remove and free a mode 439 * @connector: connector list to modify 440 * @mode: mode to remove 441 * 442 * LOCKING: 443 * Caller must hold mode config lock. 444 * 445 * Remove @mode from @connector's mode list, then free it. 446 */ 447 void drm_mode_remove(struct drm_connector *connector, 448 struct drm_display_mode *mode) 449 { 450 list_del(&mode->head); 451 drm_mode_destroy(connector->dev, mode); 452 } 453 EXPORT_SYMBOL(drm_mode_remove); 454 455 /** 456 * drm_connector_init - Init a preallocated connector 457 * @dev: DRM device 458 * @connector: the connector to init 459 * @funcs: callbacks for this connector 460 * @name: user visible name of the connector 461 * 462 * LOCKING: 463 * Takes mode config lock. 464 * 465 * Initialises a preallocated connector. Connectors should be 466 * subclassed as part of driver connector objects. 467 * 468 * RETURNS: 469 * Zero on success, error code on failure. 470 */ 471 int drm_connector_init(struct drm_device *dev, 472 struct drm_connector *connector, 473 const struct drm_connector_funcs *funcs, 474 int connector_type) 475 { 476 int ret; 477 478 mutex_lock(&dev->mode_config.mutex); 479 480 ret = drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR); 481 if (ret) 482 goto out; 483 484 connector->dev = dev; 485 connector->funcs = funcs; 486 connector->connector_type = connector_type; 487 connector->connector_type_id = 488 ++drm_connector_enum_list[connector_type].count; /* TODO */ 489 INIT_LIST_HEAD(&connector->user_modes); 490 INIT_LIST_HEAD(&connector->probed_modes); 491 INIT_LIST_HEAD(&connector->modes); 492 connector->edid_blob_ptr = NULL; 493 494 list_add_tail(&connector->head, &dev->mode_config.connector_list); 495 dev->mode_config.num_connector++; 496 497 if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL) 498 drm_connector_attach_property(connector, 499 dev->mode_config.edid_property, 500 0); 501 502 drm_connector_attach_property(connector, 503 dev->mode_config.dpms_property, 0); 504 505 out: 506 mutex_unlock(&dev->mode_config.mutex); 507 508 return ret; 509 } 510 EXPORT_SYMBOL(drm_connector_init); 511 512 /** 513 * drm_connector_cleanup - cleans up an initialised connector 514 * @connector: connector to cleanup 515 * 516 * LOCKING: 517 * Takes mode config lock. 518 * 519 * Cleans up the connector but doesn't free the object. 520 */ 521 void drm_connector_cleanup(struct drm_connector *connector) 522 { 523 struct drm_device *dev = connector->dev; 524 struct drm_display_mode *mode, *t; 525 526 list_for_each_entry_safe(mode, t, &connector->probed_modes, head) 527 drm_mode_remove(connector, mode); 528 529 list_for_each_entry_safe(mode, t, &connector->modes, head) 530 drm_mode_remove(connector, mode); 531 532 list_for_each_entry_safe(mode, t, &connector->user_modes, head) 533 drm_mode_remove(connector, mode); 534 535 mutex_lock(&dev->mode_config.mutex); 536 drm_mode_object_put(dev, &connector->base); 537 list_del(&connector->head); 538 dev->mode_config.num_connector--; 539 mutex_unlock(&dev->mode_config.mutex); 540 } 541 EXPORT_SYMBOL(drm_connector_cleanup); 542 543 void drm_connector_unplug_all(struct drm_device *dev) 544 { 545 struct drm_connector *connector; 546 547 /* taking the mode config mutex ends up in a clash with sysfs */ 548 list_for_each_entry(connector, &dev->mode_config.connector_list, head) 549 drm_sysfs_connector_remove(connector); 550 551 } 552 EXPORT_SYMBOL(drm_connector_unplug_all); 553 554 int drm_encoder_init(struct drm_device *dev, 555 struct drm_encoder *encoder, 556 const struct drm_encoder_funcs *funcs, 557 int encoder_type) 558 { 559 int ret; 560 561 mutex_lock(&dev->mode_config.mutex); 562 563 ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); 564 if (ret) 565 goto out; 566 567 encoder->dev = dev; 568 encoder->encoder_type = encoder_type; 569 encoder->funcs = funcs; 570 571 list_add_tail(&encoder->head, &dev->mode_config.encoder_list); 572 dev->mode_config.num_encoder++; 573 574 out: 575 mutex_unlock(&dev->mode_config.mutex); 576 577 return ret; 578 } 579 EXPORT_SYMBOL(drm_encoder_init); 580 581 void drm_encoder_cleanup(struct drm_encoder *encoder) 582 { 583 struct drm_device *dev = encoder->dev; 584 mutex_lock(&dev->mode_config.mutex); 585 drm_mode_object_put(dev, &encoder->base); 586 list_del(&encoder->head); 587 dev->mode_config.num_encoder--; 588 mutex_unlock(&dev->mode_config.mutex); 589 } 590 EXPORT_SYMBOL(drm_encoder_cleanup); 591 592 int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, 593 unsigned long possible_crtcs, 594 const struct drm_plane_funcs *funcs, 595 const uint32_t *formats, uint32_t format_count, 596 bool priv) 597 { 598 int ret; 599 600 mutex_lock(&dev->mode_config.mutex); 601 602 ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); 603 if (ret) 604 goto out; 605 606 plane->dev = dev; 607 plane->funcs = funcs; 608 plane->format_types = kmalloc(sizeof(uint32_t) * format_count, 609 GFP_KERNEL); 610 if (!plane->format_types) { 611 DRM_DEBUG_KMS("out of memory when allocating plane\n"); 612 drm_mode_object_put(dev, &plane->base); 613 ret = -ENOMEM; 614 goto out; 615 } 616 617 memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); 618 plane->format_count = format_count; 619 plane->possible_crtcs = possible_crtcs; 620 621 /* private planes are not exposed to userspace, but depending on 622 * display hardware, might be convenient to allow sharing programming 623 * for the scanout engine with the crtc implementation. 624 */ 625 if (!priv) { 626 list_add_tail(&plane->head, &dev->mode_config.plane_list); 627 dev->mode_config.num_plane++; 628 } else { 629 INIT_LIST_HEAD(&plane->head); 630 } 631 632 out: 633 mutex_unlock(&dev->mode_config.mutex); 634 635 return ret; 636 } 637 EXPORT_SYMBOL(drm_plane_init); 638 639 void drm_plane_cleanup(struct drm_plane *plane) 640 { 641 struct drm_device *dev = plane->dev; 642 643 mutex_lock(&dev->mode_config.mutex); 644 kfree(plane->format_types); 645 drm_mode_object_put(dev, &plane->base); 646 /* if not added to a list, it must be a private plane */ 647 if (!list_empty(&plane->head)) { 648 list_del(&plane->head); 649 dev->mode_config.num_plane--; 650 } 651 mutex_unlock(&dev->mode_config.mutex); 652 } 653 EXPORT_SYMBOL(drm_plane_cleanup); 654 655 /** 656 * drm_mode_create - create a new display mode 657 * @dev: DRM device 658 * 659 * LOCKING: 660 * Caller must hold DRM mode_config lock. 661 * 662 * Create a new drm_display_mode, give it an ID, and return it. 663 * 664 * RETURNS: 665 * Pointer to new mode on success, NULL on error. 666 */ 667 struct drm_display_mode *drm_mode_create(struct drm_device *dev) 668 { 669 struct drm_display_mode *nmode; 670 671 nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL); 672 if (!nmode) 673 return NULL; 674 675 if (drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE)) { 676 kfree(nmode); 677 return NULL; 678 } 679 680 return nmode; 681 } 682 EXPORT_SYMBOL(drm_mode_create); 683 684 /** 685 * drm_mode_destroy - remove a mode 686 * @dev: DRM device 687 * @mode: mode to remove 688 * 689 * LOCKING: 690 * Caller must hold mode config lock. 691 * 692 * Free @mode's unique identifier, then free it. 693 */ 694 void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode) 695 { 696 if (!mode) 697 return; 698 699 drm_mode_object_put(dev, &mode->base); 700 701 kfree(mode); 702 } 703 EXPORT_SYMBOL(drm_mode_destroy); 704 705 static int drm_mode_create_standard_connector_properties(struct drm_device *dev) 706 { 707 struct drm_property *edid; 708 struct drm_property *dpms; 709 710 /* 711 * Standard properties (apply to all connectors) 712 */ 713 edid = drm_property_create(dev, DRM_MODE_PROP_BLOB | 714 DRM_MODE_PROP_IMMUTABLE, 715 "EDID", 0); 716 dev->mode_config.edid_property = edid; 717 718 dpms = drm_property_create_enum(dev, 0, 719 "DPMS", drm_dpms_enum_list, 720 ARRAY_SIZE(drm_dpms_enum_list)); 721 dev->mode_config.dpms_property = dpms; 722 723 return 0; 724 } 725 726 /** 727 * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties 728 * @dev: DRM device 729 * 730 * Called by a driver the first time a DVI-I connector is made. 731 */ 732 int drm_mode_create_dvi_i_properties(struct drm_device *dev) 733 { 734 struct drm_property *dvi_i_selector; 735 struct drm_property *dvi_i_subconnector; 736 737 if (dev->mode_config.dvi_i_select_subconnector_property) 738 return 0; 739 740 dvi_i_selector = 741 drm_property_create_enum(dev, 0, 742 "select subconnector", 743 drm_dvi_i_select_enum_list, 744 ARRAY_SIZE(drm_dvi_i_select_enum_list)); 745 dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; 746 747 dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 748 "subconnector", 749 drm_dvi_i_subconnector_enum_list, 750 ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); 751 dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; 752 753 return 0; 754 } 755 EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); 756 757 /** 758 * drm_create_tv_properties - create TV specific connector properties 759 * @dev: DRM device 760 * @num_modes: number of different TV formats (modes) supported 761 * @modes: array of pointers to strings containing name of each format 762 * 763 * Called by a driver's TV initialization routine, this function creates 764 * the TV specific connector properties for a given device. Caller is 765 * responsible for allocating a list of format names and passing them to 766 * this routine. 767 */ 768 int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes, 769 char *modes[]) 770 { 771 struct drm_property *tv_selector; 772 struct drm_property *tv_subconnector; 773 int i; 774 775 if (dev->mode_config.tv_select_subconnector_property) 776 return 0; 777 778 /* 779 * Basic connector properties 780 */ 781 tv_selector = drm_property_create_enum(dev, 0, 782 "select subconnector", 783 drm_tv_select_enum_list, 784 ARRAY_SIZE(drm_tv_select_enum_list)); 785 dev->mode_config.tv_select_subconnector_property = tv_selector; 786 787 tv_subconnector = 788 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 789 "subconnector", 790 drm_tv_subconnector_enum_list, 791 ARRAY_SIZE(drm_tv_subconnector_enum_list)); 792 dev->mode_config.tv_subconnector_property = tv_subconnector; 793 794 /* 795 * Other, TV specific properties: margins & TV modes. 796 */ 797 dev->mode_config.tv_left_margin_property = 798 drm_property_create_range(dev, 0, "left margin", 0, 100); 799 800 dev->mode_config.tv_right_margin_property = 801 drm_property_create_range(dev, 0, "right margin", 0, 100); 802 803 dev->mode_config.tv_top_margin_property = 804 drm_property_create_range(dev, 0, "top margin", 0, 100); 805 806 dev->mode_config.tv_bottom_margin_property = 807 drm_property_create_range(dev, 0, "bottom margin", 0, 100); 808 809 dev->mode_config.tv_mode_property = 810 drm_property_create(dev, DRM_MODE_PROP_ENUM, 811 "mode", num_modes); 812 for (i = 0; i < num_modes; i++) 813 drm_property_add_enum(dev->mode_config.tv_mode_property, i, 814 i, modes[i]); 815 816 dev->mode_config.tv_brightness_property = 817 drm_property_create_range(dev, 0, "brightness", 0, 100); 818 819 dev->mode_config.tv_contrast_property = 820 drm_property_create_range(dev, 0, "contrast", 0, 100); 821 822 dev->mode_config.tv_flicker_reduction_property = 823 drm_property_create_range(dev, 0, "flicker reduction", 0, 100); 824 825 dev->mode_config.tv_overscan_property = 826 drm_property_create_range(dev, 0, "overscan", 0, 100); 827 828 dev->mode_config.tv_saturation_property = 829 drm_property_create_range(dev, 0, "saturation", 0, 100); 830 831 dev->mode_config.tv_hue_property = 832 drm_property_create_range(dev, 0, "hue", 0, 100); 833 834 return 0; 835 } 836 EXPORT_SYMBOL(drm_mode_create_tv_properties); 837 838 /** 839 * drm_mode_create_scaling_mode_property - create scaling mode property 840 * @dev: DRM device 841 * 842 * Called by a driver the first time it's needed, must be attached to desired 843 * connectors. 844 */ 845 int drm_mode_create_scaling_mode_property(struct drm_device *dev) 846 { 847 struct drm_property *scaling_mode; 848 849 if (dev->mode_config.scaling_mode_property) 850 return 0; 851 852 scaling_mode = 853 drm_property_create_enum(dev, 0, "scaling mode", 854 drm_scaling_mode_enum_list, 855 ARRAY_SIZE(drm_scaling_mode_enum_list)); 856 857 dev->mode_config.scaling_mode_property = scaling_mode; 858 859 return 0; 860 } 861 EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); 862 863 /** 864 * drm_mode_create_dithering_property - create dithering property 865 * @dev: DRM device 866 * 867 * Called by a driver the first time it's needed, must be attached to desired 868 * connectors. 869 */ 870 int drm_mode_create_dithering_property(struct drm_device *dev) 871 { 872 struct drm_property *dithering_mode; 873 874 if (dev->mode_config.dithering_mode_property) 875 return 0; 876 877 dithering_mode = 878 drm_property_create_enum(dev, 0, "dithering", 879 drm_dithering_mode_enum_list, 880 ARRAY_SIZE(drm_dithering_mode_enum_list)); 881 dev->mode_config.dithering_mode_property = dithering_mode; 882 883 return 0; 884 } 885 EXPORT_SYMBOL(drm_mode_create_dithering_property); 886 887 /** 888 * drm_mode_create_dirty_property - create dirty property 889 * @dev: DRM device 890 * 891 * Called by a driver the first time it's needed, must be attached to desired 892 * connectors. 893 */ 894 int drm_mode_create_dirty_info_property(struct drm_device *dev) 895 { 896 struct drm_property *dirty_info; 897 898 if (dev->mode_config.dirty_info_property) 899 return 0; 900 901 dirty_info = 902 drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 903 "dirty", 904 drm_dirty_info_enum_list, 905 ARRAY_SIZE(drm_dirty_info_enum_list)); 906 dev->mode_config.dirty_info_property = dirty_info; 907 908 return 0; 909 } 910 EXPORT_SYMBOL(drm_mode_create_dirty_info_property); 911 912 /** 913 * drm_mode_config_init - initialize DRM mode_configuration structure 914 * @dev: DRM device 915 * 916 * LOCKING: 917 * None, should happen single threaded at init time. 918 * 919 * Initialize @dev's mode_config structure, used for tracking the graphics 920 * configuration of @dev. 921 */ 922 void drm_mode_config_init(struct drm_device *dev) 923 { 924 mutex_init(&dev->mode_config.mutex); 925 mutex_init(&dev->mode_config.idr_mutex); 926 INIT_LIST_HEAD(&dev->mode_config.fb_list); 927 INIT_LIST_HEAD(&dev->mode_config.crtc_list); 928 INIT_LIST_HEAD(&dev->mode_config.connector_list); 929 INIT_LIST_HEAD(&dev->mode_config.encoder_list); 930 INIT_LIST_HEAD(&dev->mode_config.property_list); 931 INIT_LIST_HEAD(&dev->mode_config.property_blob_list); 932 INIT_LIST_HEAD(&dev->mode_config.plane_list); 933 idr_init(&dev->mode_config.crtc_idr); 934 935 mutex_lock(&dev->mode_config.mutex); 936 drm_mode_create_standard_connector_properties(dev); 937 mutex_unlock(&dev->mode_config.mutex); 938 939 /* Just to be sure */ 940 dev->mode_config.num_fb = 0; 941 dev->mode_config.num_connector = 0; 942 dev->mode_config.num_crtc = 0; 943 dev->mode_config.num_encoder = 0; 944 } 945 EXPORT_SYMBOL(drm_mode_config_init); 946 947 int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group) 948 { 949 uint32_t total_objects = 0; 950 951 total_objects += dev->mode_config.num_crtc; 952 total_objects += dev->mode_config.num_connector; 953 total_objects += dev->mode_config.num_encoder; 954 955 group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL); 956 if (!group->id_list) 957 return -ENOMEM; 958 959 group->num_crtcs = 0; 960 group->num_connectors = 0; 961 group->num_encoders = 0; 962 return 0; 963 } 964 965 int drm_mode_group_init_legacy_group(struct drm_device *dev, 966 struct drm_mode_group *group) 967 { 968 struct drm_crtc *crtc; 969 struct drm_encoder *encoder; 970 struct drm_connector *connector; 971 int ret; 972 973 if ((ret = drm_mode_group_init(dev, group))) 974 return ret; 975 976 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) 977 group->id_list[group->num_crtcs++] = crtc->base.id; 978 979 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) 980 group->id_list[group->num_crtcs + group->num_encoders++] = 981 encoder->base.id; 982 983 list_for_each_entry(connector, &dev->mode_config.connector_list, head) 984 group->id_list[group->num_crtcs + group->num_encoders + 985 group->num_connectors++] = connector->base.id; 986 987 return 0; 988 } 989 EXPORT_SYMBOL(drm_mode_group_init_legacy_group); 990 991 /** 992 * drm_mode_config_cleanup - free up DRM mode_config info 993 * @dev: DRM device 994 * 995 * LOCKING: 996 * Caller must hold mode config lock. 997 * 998 * Free up all the connectors and CRTCs associated with this DRM device, then 999 * free up the framebuffers and associated buffer objects. 1000 * 1001 * FIXME: cleanup any dangling user buffer objects too 1002 */ 1003 void drm_mode_config_cleanup(struct drm_device *dev) 1004 { 1005 struct drm_connector *connector, *ot; 1006 struct drm_crtc *crtc, *ct; 1007 struct drm_encoder *encoder, *enct; 1008 struct drm_framebuffer *fb, *fbt; 1009 struct drm_property *property, *pt; 1010 struct drm_plane *plane, *plt; 1011 1012 list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, 1013 head) { 1014 encoder->funcs->destroy(encoder); 1015 } 1016 1017 list_for_each_entry_safe(connector, ot, 1018 &dev->mode_config.connector_list, head) { 1019 connector->funcs->destroy(connector); 1020 } 1021 1022 list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, 1023 head) { 1024 drm_property_destroy(dev, property); 1025 } 1026 1027 list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { 1028 fb->funcs->destroy(fb); 1029 } 1030 1031 list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { 1032 crtc->funcs->destroy(crtc); 1033 } 1034 1035 list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, 1036 head) { 1037 plane->funcs->destroy(plane); 1038 } 1039 1040 idr_remove_all(&dev->mode_config.crtc_idr); 1041 idr_destroy(&dev->mode_config.crtc_idr); 1042 } 1043 EXPORT_SYMBOL(drm_mode_config_cleanup); 1044 1045 /** 1046 * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo 1047 * @out: drm_mode_modeinfo struct to return to the user 1048 * @in: drm_display_mode to use 1049 * 1050 * LOCKING: 1051 * None. 1052 * 1053 * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to 1054 * the user. 1055 */ 1056 static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out, 1057 const struct drm_display_mode *in) 1058 { 1059 WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX || 1060 in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX || 1061 in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX || 1062 in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX || 1063 in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX, 1064 "timing values too large for mode info\n"); 1065 1066 out->clock = in->clock; 1067 out->hdisplay = in->hdisplay; 1068 out->hsync_start = in->hsync_start; 1069 out->hsync_end = in->hsync_end; 1070 out->htotal = in->htotal; 1071 out->hskew = in->hskew; 1072 out->vdisplay = in->vdisplay; 1073 out->vsync_start = in->vsync_start; 1074 out->vsync_end = in->vsync_end; 1075 out->vtotal = in->vtotal; 1076 out->vscan = in->vscan; 1077 out->vrefresh = in->vrefresh; 1078 out->flags = in->flags; 1079 out->type = in->type; 1080 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); 1081 out->name[DRM_DISPLAY_MODE_LEN-1] = 0; 1082 } 1083 1084 /** 1085 * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode 1086 * @out: drm_display_mode to return to the user 1087 * @in: drm_mode_modeinfo to use 1088 * 1089 * LOCKING: 1090 * None. 1091 * 1092 * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to 1093 * the caller. 1094 * 1095 * RETURNS: 1096 * Zero on success, errno on failure. 1097 */ 1098 static int drm_crtc_convert_umode(struct drm_display_mode *out, 1099 const struct drm_mode_modeinfo *in) 1100 { 1101 if (in->clock > INT_MAX || in->vrefresh > INT_MAX) 1102 return -ERANGE; 1103 1104 out->clock = in->clock; 1105 out->hdisplay = in->hdisplay; 1106 out->hsync_start = in->hsync_start; 1107 out->hsync_end = in->hsync_end; 1108 out->htotal = in->htotal; 1109 out->hskew = in->hskew; 1110 out->vdisplay = in->vdisplay; 1111 out->vsync_start = in->vsync_start; 1112 out->vsync_end = in->vsync_end; 1113 out->vtotal = in->vtotal; 1114 out->vscan = in->vscan; 1115 out->vrefresh = in->vrefresh; 1116 out->flags = in->flags; 1117 out->type = in->type; 1118 strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); 1119 out->name[DRM_DISPLAY_MODE_LEN-1] = 0; 1120 1121 return 0; 1122 } 1123 1124 /** 1125 * drm_mode_getresources - get graphics configuration 1126 * @inode: inode from the ioctl 1127 * @filp: file * from the ioctl 1128 * @cmd: cmd from ioctl 1129 * @arg: arg from ioctl 1130 * 1131 * LOCKING: 1132 * Takes mode config lock. 1133 * 1134 * Construct a set of configuration description structures and return 1135 * them to the user, including CRTC, connector and framebuffer configuration. 1136 * 1137 * Called by the user via ioctl. 1138 * 1139 * RETURNS: 1140 * Zero on success, errno on failure. 1141 */ 1142 int drm_mode_getresources(struct drm_device *dev, void *data, 1143 struct drm_file *file_priv) 1144 { 1145 struct drm_mode_card_res *card_res = data; 1146 struct list_head *lh; 1147 struct drm_framebuffer *fb; 1148 struct drm_connector *connector; 1149 struct drm_crtc *crtc; 1150 struct drm_encoder *encoder; 1151 int ret = 0; 1152 int connector_count = 0; 1153 int crtc_count = 0; 1154 int fb_count = 0; 1155 int encoder_count = 0; 1156 int copied = 0, i; 1157 uint32_t __user *fb_id; 1158 uint32_t __user *crtc_id; 1159 uint32_t __user *connector_id; 1160 uint32_t __user *encoder_id; 1161 struct drm_mode_group *mode_group; 1162 1163 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1164 return -EINVAL; 1165 1166 mutex_lock(&dev->mode_config.mutex); 1167 1168 /* 1169 * For the non-control nodes we need to limit the list of resources 1170 * by IDs in the group list for this node 1171 */ 1172 list_for_each(lh, &file_priv->fbs) 1173 fb_count++; 1174 1175 mode_group = &file_priv->master->minor->mode_group; 1176 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { 1177 1178 list_for_each(lh, &dev->mode_config.crtc_list) 1179 crtc_count++; 1180 1181 list_for_each(lh, &dev->mode_config.connector_list) 1182 connector_count++; 1183 1184 list_for_each(lh, &dev->mode_config.encoder_list) 1185 encoder_count++; 1186 } else { 1187 1188 crtc_count = mode_group->num_crtcs; 1189 connector_count = mode_group->num_connectors; 1190 encoder_count = mode_group->num_encoders; 1191 } 1192 1193 card_res->max_height = dev->mode_config.max_height; 1194 card_res->min_height = dev->mode_config.min_height; 1195 card_res->max_width = dev->mode_config.max_width; 1196 card_res->min_width = dev->mode_config.min_width; 1197 1198 /* handle this in 4 parts */ 1199 /* FBs */ 1200 if (card_res->count_fbs >= fb_count) { 1201 copied = 0; 1202 fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; 1203 list_for_each_entry(fb, &file_priv->fbs, filp_head) { 1204 if (put_user(fb->base.id, fb_id + copied)) { 1205 ret = -EFAULT; 1206 goto out; 1207 } 1208 copied++; 1209 } 1210 } 1211 card_res->count_fbs = fb_count; 1212 1213 /* CRTCs */ 1214 if (card_res->count_crtcs >= crtc_count) { 1215 copied = 0; 1216 crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; 1217 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { 1218 list_for_each_entry(crtc, &dev->mode_config.crtc_list, 1219 head) { 1220 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); 1221 if (put_user(crtc->base.id, crtc_id + copied)) { 1222 ret = -EFAULT; 1223 goto out; 1224 } 1225 copied++; 1226 } 1227 } else { 1228 for (i = 0; i < mode_group->num_crtcs; i++) { 1229 if (put_user(mode_group->id_list[i], 1230 crtc_id + copied)) { 1231 ret = -EFAULT; 1232 goto out; 1233 } 1234 copied++; 1235 } 1236 } 1237 } 1238 card_res->count_crtcs = crtc_count; 1239 1240 /* Encoders */ 1241 if (card_res->count_encoders >= encoder_count) { 1242 copied = 0; 1243 encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; 1244 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { 1245 list_for_each_entry(encoder, 1246 &dev->mode_config.encoder_list, 1247 head) { 1248 DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id, 1249 drm_get_encoder_name(encoder)); 1250 if (put_user(encoder->base.id, encoder_id + 1251 copied)) { 1252 ret = -EFAULT; 1253 goto out; 1254 } 1255 copied++; 1256 } 1257 } else { 1258 for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) { 1259 if (put_user(mode_group->id_list[i], 1260 encoder_id + copied)) { 1261 ret = -EFAULT; 1262 goto out; 1263 } 1264 copied++; 1265 } 1266 1267 } 1268 } 1269 card_res->count_encoders = encoder_count; 1270 1271 /* Connectors */ 1272 if (card_res->count_connectors >= connector_count) { 1273 copied = 0; 1274 connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; 1275 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { 1276 list_for_each_entry(connector, 1277 &dev->mode_config.connector_list, 1278 head) { 1279 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", 1280 connector->base.id, 1281 drm_get_connector_name(connector)); 1282 if (put_user(connector->base.id, 1283 connector_id + copied)) { 1284 ret = -EFAULT; 1285 goto out; 1286 } 1287 copied++; 1288 } 1289 } else { 1290 int start = mode_group->num_crtcs + 1291 mode_group->num_encoders; 1292 for (i = start; i < start + mode_group->num_connectors; i++) { 1293 if (put_user(mode_group->id_list[i], 1294 connector_id + copied)) { 1295 ret = -EFAULT; 1296 goto out; 1297 } 1298 copied++; 1299 } 1300 } 1301 } 1302 card_res->count_connectors = connector_count; 1303 1304 DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs, 1305 card_res->count_connectors, card_res->count_encoders); 1306 1307 out: 1308 mutex_unlock(&dev->mode_config.mutex); 1309 return ret; 1310 } 1311 1312 /** 1313 * drm_mode_getcrtc - get CRTC configuration 1314 * @inode: inode from the ioctl 1315 * @filp: file * from the ioctl 1316 * @cmd: cmd from ioctl 1317 * @arg: arg from ioctl 1318 * 1319 * LOCKING: 1320 * Takes mode config lock. 1321 * 1322 * Construct a CRTC configuration structure to return to the user. 1323 * 1324 * Called by the user via ioctl. 1325 * 1326 * RETURNS: 1327 * Zero on success, errno on failure. 1328 */ 1329 int drm_mode_getcrtc(struct drm_device *dev, 1330 void *data, struct drm_file *file_priv) 1331 { 1332 struct drm_mode_crtc *crtc_resp = data; 1333 struct drm_crtc *crtc; 1334 struct drm_mode_object *obj; 1335 int ret = 0; 1336 1337 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1338 return -EINVAL; 1339 1340 mutex_lock(&dev->mode_config.mutex); 1341 1342 obj = drm_mode_object_find(dev, crtc_resp->crtc_id, 1343 DRM_MODE_OBJECT_CRTC); 1344 if (!obj) { 1345 ret = -EINVAL; 1346 goto out; 1347 } 1348 crtc = obj_to_crtc(obj); 1349 1350 crtc_resp->x = crtc->x; 1351 crtc_resp->y = crtc->y; 1352 crtc_resp->gamma_size = crtc->gamma_size; 1353 if (crtc->fb) 1354 crtc_resp->fb_id = crtc->fb->base.id; 1355 else 1356 crtc_resp->fb_id = 0; 1357 1358 if (crtc->enabled) { 1359 1360 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode); 1361 crtc_resp->mode_valid = 1; 1362 1363 } else { 1364 crtc_resp->mode_valid = 0; 1365 } 1366 1367 out: 1368 mutex_unlock(&dev->mode_config.mutex); 1369 return ret; 1370 } 1371 1372 /** 1373 * drm_mode_getconnector - get connector configuration 1374 * @inode: inode from the ioctl 1375 * @filp: file * from the ioctl 1376 * @cmd: cmd from ioctl 1377 * @arg: arg from ioctl 1378 * 1379 * LOCKING: 1380 * Takes mode config lock. 1381 * 1382 * Construct a connector configuration structure to return to the user. 1383 * 1384 * Called by the user via ioctl. 1385 * 1386 * RETURNS: 1387 * Zero on success, errno on failure. 1388 */ 1389 int drm_mode_getconnector(struct drm_device *dev, void *data, 1390 struct drm_file *file_priv) 1391 { 1392 struct drm_mode_get_connector *out_resp = data; 1393 struct drm_mode_object *obj; 1394 struct drm_connector *connector; 1395 struct drm_display_mode *mode; 1396 int mode_count = 0; 1397 int props_count = 0; 1398 int encoders_count = 0; 1399 int ret = 0; 1400 int copied = 0; 1401 int i; 1402 struct drm_mode_modeinfo u_mode; 1403 struct drm_mode_modeinfo __user *mode_ptr; 1404 uint32_t __user *prop_ptr; 1405 uint64_t __user *prop_values; 1406 uint32_t __user *encoder_ptr; 1407 1408 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1409 return -EINVAL; 1410 1411 memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); 1412 1413 DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id); 1414 1415 mutex_lock(&dev->mode_config.mutex); 1416 1417 obj = drm_mode_object_find(dev, out_resp->connector_id, 1418 DRM_MODE_OBJECT_CONNECTOR); 1419 if (!obj) { 1420 ret = -EINVAL; 1421 goto out; 1422 } 1423 connector = obj_to_connector(obj); 1424 1425 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) { 1426 if (connector->property_ids[i] != 0) { 1427 props_count++; 1428 } 1429 } 1430 1431 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 1432 if (connector->encoder_ids[i] != 0) { 1433 encoders_count++; 1434 } 1435 } 1436 1437 if (out_resp->count_modes == 0) { 1438 connector->funcs->fill_modes(connector, 1439 dev->mode_config.max_width, 1440 dev->mode_config.max_height); 1441 } 1442 1443 /* delayed so we get modes regardless of pre-fill_modes state */ 1444 list_for_each_entry(mode, &connector->modes, head) 1445 mode_count++; 1446 1447 out_resp->connector_id = connector->base.id; 1448 out_resp->connector_type = connector->connector_type; 1449 out_resp->connector_type_id = connector->connector_type_id; 1450 out_resp->mm_width = connector->display_info.width_mm; 1451 out_resp->mm_height = connector->display_info.height_mm; 1452 out_resp->subpixel = connector->display_info.subpixel_order; 1453 out_resp->connection = connector->status; 1454 if (connector->encoder) 1455 out_resp->encoder_id = connector->encoder->base.id; 1456 else 1457 out_resp->encoder_id = 0; 1458 1459 /* 1460 * This ioctl is called twice, once to determine how much space is 1461 * needed, and the 2nd time to fill it. 1462 */ 1463 if ((out_resp->count_modes >= mode_count) && mode_count) { 1464 copied = 0; 1465 mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; 1466 list_for_each_entry(mode, &connector->modes, head) { 1467 drm_crtc_convert_to_umode(&u_mode, mode); 1468 if (copy_to_user(mode_ptr + copied, 1469 &u_mode, sizeof(u_mode))) { 1470 ret = -EFAULT; 1471 goto out; 1472 } 1473 copied++; 1474 } 1475 } 1476 out_resp->count_modes = mode_count; 1477 1478 if ((out_resp->count_props >= props_count) && props_count) { 1479 copied = 0; 1480 prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr); 1481 prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr); 1482 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) { 1483 if (connector->property_ids[i] != 0) { 1484 if (put_user(connector->property_ids[i], 1485 prop_ptr + copied)) { 1486 ret = -EFAULT; 1487 goto out; 1488 } 1489 1490 if (put_user(connector->property_values[i], 1491 prop_values + copied)) { 1492 ret = -EFAULT; 1493 goto out; 1494 } 1495 copied++; 1496 } 1497 } 1498 } 1499 out_resp->count_props = props_count; 1500 1501 if ((out_resp->count_encoders >= encoders_count) && encoders_count) { 1502 copied = 0; 1503 encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); 1504 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 1505 if (connector->encoder_ids[i] != 0) { 1506 if (put_user(connector->encoder_ids[i], 1507 encoder_ptr + copied)) { 1508 ret = -EFAULT; 1509 goto out; 1510 } 1511 copied++; 1512 } 1513 } 1514 } 1515 out_resp->count_encoders = encoders_count; 1516 1517 out: 1518 mutex_unlock(&dev->mode_config.mutex); 1519 return ret; 1520 } 1521 1522 int drm_mode_getencoder(struct drm_device *dev, void *data, 1523 struct drm_file *file_priv) 1524 { 1525 struct drm_mode_get_encoder *enc_resp = data; 1526 struct drm_mode_object *obj; 1527 struct drm_encoder *encoder; 1528 int ret = 0; 1529 1530 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1531 return -EINVAL; 1532 1533 mutex_lock(&dev->mode_config.mutex); 1534 obj = drm_mode_object_find(dev, enc_resp->encoder_id, 1535 DRM_MODE_OBJECT_ENCODER); 1536 if (!obj) { 1537 ret = -EINVAL; 1538 goto out; 1539 } 1540 encoder = obj_to_encoder(obj); 1541 1542 if (encoder->crtc) 1543 enc_resp->crtc_id = encoder->crtc->base.id; 1544 else 1545 enc_resp->crtc_id = 0; 1546 enc_resp->encoder_type = encoder->encoder_type; 1547 enc_resp->encoder_id = encoder->base.id; 1548 enc_resp->possible_crtcs = encoder->possible_crtcs; 1549 enc_resp->possible_clones = encoder->possible_clones; 1550 1551 out: 1552 mutex_unlock(&dev->mode_config.mutex); 1553 return ret; 1554 } 1555 1556 /** 1557 * drm_mode_getplane_res - get plane info 1558 * @dev: DRM device 1559 * @data: ioctl data 1560 * @file_priv: DRM file info 1561 * 1562 * LOCKING: 1563 * Takes mode config lock. 1564 * 1565 * Return an plane count and set of IDs. 1566 */ 1567 int drm_mode_getplane_res(struct drm_device *dev, void *data, 1568 struct drm_file *file_priv) 1569 { 1570 struct drm_mode_get_plane_res *plane_resp = data; 1571 struct drm_mode_config *config; 1572 struct drm_plane *plane; 1573 uint32_t __user *plane_ptr; 1574 int copied = 0, ret = 0; 1575 1576 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1577 return -EINVAL; 1578 1579 mutex_lock(&dev->mode_config.mutex); 1580 config = &dev->mode_config; 1581 1582 /* 1583 * This ioctl is called twice, once to determine how much space is 1584 * needed, and the 2nd time to fill it. 1585 */ 1586 if (config->num_plane && 1587 (plane_resp->count_planes >= config->num_plane)) { 1588 plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; 1589 1590 list_for_each_entry(plane, &config->plane_list, head) { 1591 if (put_user(plane->base.id, plane_ptr + copied)) { 1592 ret = -EFAULT; 1593 goto out; 1594 } 1595 copied++; 1596 } 1597 } 1598 plane_resp->count_planes = config->num_plane; 1599 1600 out: 1601 mutex_unlock(&dev->mode_config.mutex); 1602 return ret; 1603 } 1604 1605 /** 1606 * drm_mode_getplane - get plane info 1607 * @dev: DRM device 1608 * @data: ioctl data 1609 * @file_priv: DRM file info 1610 * 1611 * LOCKING: 1612 * Takes mode config lock. 1613 * 1614 * Return plane info, including formats supported, gamma size, any 1615 * current fb, etc. 1616 */ 1617 int drm_mode_getplane(struct drm_device *dev, void *data, 1618 struct drm_file *file_priv) 1619 { 1620 struct drm_mode_get_plane *plane_resp = data; 1621 struct drm_mode_object *obj; 1622 struct drm_plane *plane; 1623 uint32_t __user *format_ptr; 1624 int ret = 0; 1625 1626 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1627 return -EINVAL; 1628 1629 mutex_lock(&dev->mode_config.mutex); 1630 obj = drm_mode_object_find(dev, plane_resp->plane_id, 1631 DRM_MODE_OBJECT_PLANE); 1632 if (!obj) { 1633 ret = -ENOENT; 1634 goto out; 1635 } 1636 plane = obj_to_plane(obj); 1637 1638 if (plane->crtc) 1639 plane_resp->crtc_id = plane->crtc->base.id; 1640 else 1641 plane_resp->crtc_id = 0; 1642 1643 if (plane->fb) 1644 plane_resp->fb_id = plane->fb->base.id; 1645 else 1646 plane_resp->fb_id = 0; 1647 1648 plane_resp->plane_id = plane->base.id; 1649 plane_resp->possible_crtcs = plane->possible_crtcs; 1650 plane_resp->gamma_size = plane->gamma_size; 1651 1652 /* 1653 * This ioctl is called twice, once to determine how much space is 1654 * needed, and the 2nd time to fill it. 1655 */ 1656 if (plane->format_count && 1657 (plane_resp->count_format_types >= plane->format_count)) { 1658 format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; 1659 if (copy_to_user(format_ptr, 1660 plane->format_types, 1661 sizeof(uint32_t) * plane->format_count)) { 1662 ret = -EFAULT; 1663 goto out; 1664 } 1665 } 1666 plane_resp->count_format_types = plane->format_count; 1667 1668 out: 1669 mutex_unlock(&dev->mode_config.mutex); 1670 return ret; 1671 } 1672 1673 /** 1674 * drm_mode_setplane - set up or tear down an plane 1675 * @dev: DRM device 1676 * @data: ioctl data* 1677 * @file_prive: DRM file info 1678 * 1679 * LOCKING: 1680 * Takes mode config lock. 1681 * 1682 * Set plane info, including placement, fb, scaling, and other factors. 1683 * Or pass a NULL fb to disable. 1684 */ 1685 int drm_mode_setplane(struct drm_device *dev, void *data, 1686 struct drm_file *file_priv) 1687 { 1688 struct drm_mode_set_plane *plane_req = data; 1689 struct drm_mode_object *obj; 1690 struct drm_plane *plane; 1691 struct drm_crtc *crtc; 1692 struct drm_framebuffer *fb; 1693 int ret = 0; 1694 unsigned int fb_width, fb_height; 1695 int i; 1696 1697 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1698 return -EINVAL; 1699 1700 mutex_lock(&dev->mode_config.mutex); 1701 1702 /* 1703 * First, find the plane, crtc, and fb objects. If not available, 1704 * we don't bother to call the driver. 1705 */ 1706 obj = drm_mode_object_find(dev, plane_req->plane_id, 1707 DRM_MODE_OBJECT_PLANE); 1708 if (!obj) { 1709 DRM_DEBUG_KMS("Unknown plane ID %d\n", 1710 plane_req->plane_id); 1711 ret = -ENOENT; 1712 goto out; 1713 } 1714 plane = obj_to_plane(obj); 1715 1716 /* No fb means shut it down */ 1717 if (!plane_req->fb_id) { 1718 plane->funcs->disable_plane(plane); 1719 plane->crtc = NULL; 1720 plane->fb = NULL; 1721 goto out; 1722 } 1723 1724 obj = drm_mode_object_find(dev, plane_req->crtc_id, 1725 DRM_MODE_OBJECT_CRTC); 1726 if (!obj) { 1727 DRM_DEBUG_KMS("Unknown crtc ID %d\n", 1728 plane_req->crtc_id); 1729 ret = -ENOENT; 1730 goto out; 1731 } 1732 crtc = obj_to_crtc(obj); 1733 1734 obj = drm_mode_object_find(dev, plane_req->fb_id, 1735 DRM_MODE_OBJECT_FB); 1736 if (!obj) { 1737 DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", 1738 plane_req->fb_id); 1739 ret = -ENOENT; 1740 goto out; 1741 } 1742 fb = obj_to_fb(obj); 1743 1744 /* Check whether this plane supports the fb pixel format. */ 1745 for (i = 0; i < plane->format_count; i++) 1746 if (fb->pixel_format == plane->format_types[i]) 1747 break; 1748 if (i == plane->format_count) { 1749 DRM_DEBUG_KMS("Invalid pixel format 0x%08x\n", fb->pixel_format); 1750 ret = -EINVAL; 1751 goto out; 1752 } 1753 1754 fb_width = fb->width << 16; 1755 fb_height = fb->height << 16; 1756 1757 /* Make sure source coordinates are inside the fb. */ 1758 if (plane_req->src_w > fb_width || 1759 plane_req->src_x > fb_width - plane_req->src_w || 1760 plane_req->src_h > fb_height || 1761 plane_req->src_y > fb_height - plane_req->src_h) { 1762 DRM_DEBUG_KMS("Invalid source coordinates " 1763 "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", 1764 plane_req->src_w >> 16, 1765 ((plane_req->src_w & 0xffff) * 15625) >> 10, 1766 plane_req->src_h >> 16, 1767 ((plane_req->src_h & 0xffff) * 15625) >> 10, 1768 plane_req->src_x >> 16, 1769 ((plane_req->src_x & 0xffff) * 15625) >> 10, 1770 plane_req->src_y >> 16, 1771 ((plane_req->src_y & 0xffff) * 15625) >> 10); 1772 ret = -ENOSPC; 1773 goto out; 1774 } 1775 1776 /* Give drivers some help against integer overflows */ 1777 if (plane_req->crtc_w > INT_MAX || 1778 plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w || 1779 plane_req->crtc_h > INT_MAX || 1780 plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) { 1781 DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", 1782 plane_req->crtc_w, plane_req->crtc_h, 1783 plane_req->crtc_x, plane_req->crtc_y); 1784 ret = -ERANGE; 1785 goto out; 1786 } 1787 1788 ret = plane->funcs->update_plane(plane, crtc, fb, 1789 plane_req->crtc_x, plane_req->crtc_y, 1790 plane_req->crtc_w, plane_req->crtc_h, 1791 plane_req->src_x, plane_req->src_y, 1792 plane_req->src_w, plane_req->src_h); 1793 if (!ret) { 1794 plane->crtc = crtc; 1795 plane->fb = fb; 1796 } 1797 1798 out: 1799 mutex_unlock(&dev->mode_config.mutex); 1800 1801 return ret; 1802 } 1803 1804 /** 1805 * drm_mode_setcrtc - set CRTC configuration 1806 * @inode: inode from the ioctl 1807 * @filp: file * from the ioctl 1808 * @cmd: cmd from ioctl 1809 * @arg: arg from ioctl 1810 * 1811 * LOCKING: 1812 * Takes mode config lock. 1813 * 1814 * Build a new CRTC configuration based on user request. 1815 * 1816 * Called by the user via ioctl. 1817 * 1818 * RETURNS: 1819 * Zero on success, errno on failure. 1820 */ 1821 int drm_mode_setcrtc(struct drm_device *dev, void *data, 1822 struct drm_file *file_priv) 1823 { 1824 struct drm_mode_config *config = &dev->mode_config; 1825 struct drm_mode_crtc *crtc_req = data; 1826 struct drm_mode_object *obj; 1827 struct drm_crtc *crtc; 1828 struct drm_connector **connector_set = NULL, *connector; 1829 struct drm_framebuffer *fb = NULL; 1830 struct drm_display_mode *mode = NULL; 1831 struct drm_mode_set set; 1832 uint32_t __user *set_connectors_ptr; 1833 int ret = 0; 1834 int i; 1835 1836 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1837 return -EINVAL; 1838 1839 /* For some reason crtc x/y offsets are signed internally. */ 1840 if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX) 1841 return -ERANGE; 1842 1843 mutex_lock(&dev->mode_config.mutex); 1844 obj = drm_mode_object_find(dev, crtc_req->crtc_id, 1845 DRM_MODE_OBJECT_CRTC); 1846 if (!obj) { 1847 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); 1848 ret = -EINVAL; 1849 goto out; 1850 } 1851 crtc = obj_to_crtc(obj); 1852 DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); 1853 1854 if (crtc_req->mode_valid) { 1855 /* If we have a mode we need a framebuffer. */ 1856 /* If we pass -1, set the mode with the currently bound fb */ 1857 if (crtc_req->fb_id == -1) { 1858 if (!crtc->fb) { 1859 DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); 1860 ret = -EINVAL; 1861 goto out; 1862 } 1863 fb = crtc->fb; 1864 } else { 1865 obj = drm_mode_object_find(dev, crtc_req->fb_id, 1866 DRM_MODE_OBJECT_FB); 1867 if (!obj) { 1868 DRM_DEBUG_KMS("Unknown FB ID%d\n", 1869 crtc_req->fb_id); 1870 ret = -EINVAL; 1871 goto out; 1872 } 1873 fb = obj_to_fb(obj); 1874 } 1875 1876 mode = drm_mode_create(dev); 1877 if (!mode) { 1878 ret = -ENOMEM; 1879 goto out; 1880 } 1881 1882 ret = drm_crtc_convert_umode(mode, &crtc_req->mode); 1883 if (ret) { 1884 DRM_DEBUG_KMS("Invalid mode\n"); 1885 goto out; 1886 } 1887 1888 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); 1889 1890 if (mode->hdisplay > fb->width || 1891 mode->vdisplay > fb->height || 1892 crtc_req->x > fb->width - mode->hdisplay || 1893 crtc_req->y > fb->height - mode->vdisplay) { 1894 DRM_DEBUG_KMS("Invalid CRTC viewport %ux%u+%u+%u for fb size %ux%u.\n", 1895 mode->hdisplay, mode->vdisplay, 1896 crtc_req->x, crtc_req->y, 1897 fb->width, fb->height); 1898 ret = -ENOSPC; 1899 goto out; 1900 } 1901 } 1902 1903 if (crtc_req->count_connectors == 0 && mode) { 1904 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); 1905 ret = -EINVAL; 1906 goto out; 1907 } 1908 1909 if (crtc_req->count_connectors > 0 && (!mode || !fb)) { 1910 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", 1911 crtc_req->count_connectors); 1912 ret = -EINVAL; 1913 goto out; 1914 } 1915 1916 if (crtc_req->count_connectors > 0) { 1917 u32 out_id; 1918 1919 /* Avoid unbounded kernel memory allocation */ 1920 if (crtc_req->count_connectors > config->num_connector) { 1921 ret = -EINVAL; 1922 goto out; 1923 } 1924 1925 connector_set = kmalloc(crtc_req->count_connectors * 1926 sizeof(struct drm_connector *), 1927 GFP_KERNEL); 1928 if (!connector_set) { 1929 ret = -ENOMEM; 1930 goto out; 1931 } 1932 1933 for (i = 0; i < crtc_req->count_connectors; i++) { 1934 set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; 1935 if (get_user(out_id, &set_connectors_ptr[i])) { 1936 ret = -EFAULT; 1937 goto out; 1938 } 1939 1940 obj = drm_mode_object_find(dev, out_id, 1941 DRM_MODE_OBJECT_CONNECTOR); 1942 if (!obj) { 1943 DRM_DEBUG_KMS("Connector id %d unknown\n", 1944 out_id); 1945 ret = -EINVAL; 1946 goto out; 1947 } 1948 connector = obj_to_connector(obj); 1949 DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", 1950 connector->base.id, 1951 drm_get_connector_name(connector)); 1952 1953 connector_set[i] = connector; 1954 } 1955 } 1956 1957 set.crtc = crtc; 1958 set.x = crtc_req->x; 1959 set.y = crtc_req->y; 1960 set.mode = mode; 1961 set.connectors = connector_set; 1962 set.num_connectors = crtc_req->count_connectors; 1963 set.fb = fb; 1964 ret = crtc->funcs->set_config(&set); 1965 1966 out: 1967 kfree(connector_set); 1968 drm_mode_destroy(dev, mode); 1969 mutex_unlock(&dev->mode_config.mutex); 1970 return ret; 1971 } 1972 1973 int drm_mode_cursor_ioctl(struct drm_device *dev, 1974 void *data, struct drm_file *file_priv) 1975 { 1976 struct drm_mode_cursor *req = data; 1977 struct drm_mode_object *obj; 1978 struct drm_crtc *crtc; 1979 int ret = 0; 1980 1981 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1982 return -EINVAL; 1983 1984 if (!req->flags) 1985 return -EINVAL; 1986 1987 mutex_lock(&dev->mode_config.mutex); 1988 obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC); 1989 if (!obj) { 1990 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); 1991 ret = -EINVAL; 1992 goto out; 1993 } 1994 crtc = obj_to_crtc(obj); 1995 1996 if (req->flags & DRM_MODE_CURSOR_BO) { 1997 if (!crtc->funcs->cursor_set) { 1998 ret = -ENXIO; 1999 goto out; 2000 } 2001 /* Turns off the cursor if handle is 0 */ 2002 ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, 2003 req->width, req->height); 2004 } 2005 2006 if (req->flags & DRM_MODE_CURSOR_MOVE) { 2007 if (crtc->funcs->cursor_move) { 2008 ret = crtc->funcs->cursor_move(crtc, req->x, req->y); 2009 } else { 2010 ret = -EFAULT; 2011 goto out; 2012 } 2013 } 2014 out: 2015 mutex_unlock(&dev->mode_config.mutex); 2016 return ret; 2017 } 2018 2019 /* Original addfb only supported RGB formats, so figure out which one */ 2020 uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth) 2021 { 2022 uint32_t fmt; 2023 2024 switch (bpp) { 2025 case 8: 2026 fmt = DRM_FORMAT_RGB332; 2027 break; 2028 case 16: 2029 if (depth == 15) 2030 fmt = DRM_FORMAT_XRGB1555; 2031 else 2032 fmt = DRM_FORMAT_RGB565; 2033 break; 2034 case 24: 2035 fmt = DRM_FORMAT_RGB888; 2036 break; 2037 case 32: 2038 if (depth == 24) 2039 fmt = DRM_FORMAT_XRGB8888; 2040 else if (depth == 30) 2041 fmt = DRM_FORMAT_XRGB2101010; 2042 else 2043 fmt = DRM_FORMAT_ARGB8888; 2044 break; 2045 default: 2046 DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n"); 2047 fmt = DRM_FORMAT_XRGB8888; 2048 break; 2049 } 2050 2051 return fmt; 2052 } 2053 EXPORT_SYMBOL(drm_mode_legacy_fb_format); 2054 2055 /** 2056 * drm_mode_addfb - add an FB to the graphics configuration 2057 * @inode: inode from the ioctl 2058 * @filp: file * from the ioctl 2059 * @cmd: cmd from ioctl 2060 * @arg: arg from ioctl 2061 * 2062 * LOCKING: 2063 * Takes mode config lock. 2064 * 2065 * Add a new FB to the specified CRTC, given a user request. 2066 * 2067 * Called by the user via ioctl. 2068 * 2069 * RETURNS: 2070 * Zero on success, errno on failure. 2071 */ 2072 int drm_mode_addfb(struct drm_device *dev, 2073 void *data, struct drm_file *file_priv) 2074 { 2075 struct drm_mode_fb_cmd *or = data; 2076 struct drm_mode_fb_cmd2 r = {}; 2077 struct drm_mode_config *config = &dev->mode_config; 2078 struct drm_framebuffer *fb; 2079 int ret = 0; 2080 2081 /* Use new struct with format internally */ 2082 r.fb_id = or->fb_id; 2083 r.width = or->width; 2084 r.height = or->height; 2085 r.pitches[0] = or->pitch; 2086 r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth); 2087 r.handles[0] = or->handle; 2088 2089 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2090 return -EINVAL; 2091 2092 if ((config->min_width > r.width) || (r.width > config->max_width)) 2093 return -EINVAL; 2094 2095 if ((config->min_height > r.height) || (r.height > config->max_height)) 2096 return -EINVAL; 2097 2098 mutex_lock(&dev->mode_config.mutex); 2099 2100 /* TODO check buffer is sufficiently large */ 2101 /* TODO setup destructor callback */ 2102 2103 fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r); 2104 if (IS_ERR(fb)) { 2105 DRM_ERROR("could not create framebuffer\n"); 2106 ret = PTR_ERR(fb); 2107 goto out; 2108 } 2109 2110 or->fb_id = fb->base.id; 2111 list_add(&fb->filp_head, &file_priv->fbs); 2112 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); 2113 2114 out: 2115 mutex_unlock(&dev->mode_config.mutex); 2116 return ret; 2117 } 2118 2119 static int format_check(struct drm_mode_fb_cmd2 *r) 2120 { 2121 uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN; 2122 2123 switch (format) { 2124 case DRM_FORMAT_C8: 2125 case DRM_FORMAT_RGB332: 2126 case DRM_FORMAT_BGR233: 2127 case DRM_FORMAT_XRGB4444: 2128 case DRM_FORMAT_XBGR4444: 2129 case DRM_FORMAT_RGBX4444: 2130 case DRM_FORMAT_BGRX4444: 2131 case DRM_FORMAT_ARGB4444: 2132 case DRM_FORMAT_ABGR4444: 2133 case DRM_FORMAT_RGBA4444: 2134 case DRM_FORMAT_BGRA4444: 2135 case DRM_FORMAT_XRGB1555: 2136 case DRM_FORMAT_XBGR1555: 2137 case DRM_FORMAT_RGBX5551: 2138 case DRM_FORMAT_BGRX5551: 2139 case DRM_FORMAT_ARGB1555: 2140 case DRM_FORMAT_ABGR1555: 2141 case DRM_FORMAT_RGBA5551: 2142 case DRM_FORMAT_BGRA5551: 2143 case DRM_FORMAT_RGB565: 2144 case DRM_FORMAT_BGR565: 2145 case DRM_FORMAT_RGB888: 2146 case DRM_FORMAT_BGR888: 2147 case DRM_FORMAT_XRGB8888: 2148 case DRM_FORMAT_XBGR8888: 2149 case DRM_FORMAT_RGBX8888: 2150 case DRM_FORMAT_BGRX8888: 2151 case DRM_FORMAT_ARGB8888: 2152 case DRM_FORMAT_ABGR8888: 2153 case DRM_FORMAT_RGBA8888: 2154 case DRM_FORMAT_BGRA8888: 2155 case DRM_FORMAT_XRGB2101010: 2156 case DRM_FORMAT_XBGR2101010: 2157 case DRM_FORMAT_RGBX1010102: 2158 case DRM_FORMAT_BGRX1010102: 2159 case DRM_FORMAT_ARGB2101010: 2160 case DRM_FORMAT_ABGR2101010: 2161 case DRM_FORMAT_RGBA1010102: 2162 case DRM_FORMAT_BGRA1010102: 2163 case DRM_FORMAT_YUYV: 2164 case DRM_FORMAT_YVYU: 2165 case DRM_FORMAT_UYVY: 2166 case DRM_FORMAT_VYUY: 2167 case DRM_FORMAT_AYUV: 2168 case DRM_FORMAT_NV12: 2169 case DRM_FORMAT_NV21: 2170 case DRM_FORMAT_NV16: 2171 case DRM_FORMAT_NV61: 2172 case DRM_FORMAT_YUV410: 2173 case DRM_FORMAT_YVU410: 2174 case DRM_FORMAT_YUV411: 2175 case DRM_FORMAT_YVU411: 2176 case DRM_FORMAT_YUV420: 2177 case DRM_FORMAT_YVU420: 2178 case DRM_FORMAT_YUV422: 2179 case DRM_FORMAT_YVU422: 2180 case DRM_FORMAT_YUV444: 2181 case DRM_FORMAT_YVU444: 2182 return 0; 2183 default: 2184 return -EINVAL; 2185 } 2186 } 2187 2188 /** 2189 * drm_mode_addfb2 - add an FB to the graphics configuration 2190 * @inode: inode from the ioctl 2191 * @filp: file * from the ioctl 2192 * @cmd: cmd from ioctl 2193 * @arg: arg from ioctl 2194 * 2195 * LOCKING: 2196 * Takes mode config lock. 2197 * 2198 * Add a new FB to the specified CRTC, given a user request with format. 2199 * 2200 * Called by the user via ioctl. 2201 * 2202 * RETURNS: 2203 * Zero on success, errno on failure. 2204 */ 2205 int drm_mode_addfb2(struct drm_device *dev, 2206 void *data, struct drm_file *file_priv) 2207 { 2208 struct drm_mode_fb_cmd2 *r = data; 2209 struct drm_mode_config *config = &dev->mode_config; 2210 struct drm_framebuffer *fb; 2211 int ret = 0; 2212 2213 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2214 return -EINVAL; 2215 2216 if ((config->min_width > r->width) || (r->width > config->max_width)) { 2217 DRM_ERROR("bad framebuffer width %d, should be >= %d && <= %d\n", 2218 r->width, config->min_width, config->max_width); 2219 return -EINVAL; 2220 } 2221 if ((config->min_height > r->height) || (r->height > config->max_height)) { 2222 DRM_ERROR("bad framebuffer height %d, should be >= %d && <= %d\n", 2223 r->height, config->min_height, config->max_height); 2224 return -EINVAL; 2225 } 2226 2227 ret = format_check(r); 2228 if (ret) { 2229 DRM_ERROR("bad framebuffer format 0x%08x\n", r->pixel_format); 2230 return ret; 2231 } 2232 2233 mutex_lock(&dev->mode_config.mutex); 2234 2235 fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); 2236 if (IS_ERR(fb)) { 2237 DRM_ERROR("could not create framebuffer\n"); 2238 ret = PTR_ERR(fb); 2239 goto out; 2240 } 2241 2242 r->fb_id = fb->base.id; 2243 list_add(&fb->filp_head, &file_priv->fbs); 2244 DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); 2245 2246 out: 2247 mutex_unlock(&dev->mode_config.mutex); 2248 return ret; 2249 } 2250 2251 /** 2252 * drm_mode_rmfb - remove an FB from the configuration 2253 * @inode: inode from the ioctl 2254 * @filp: file * from the ioctl 2255 * @cmd: cmd from ioctl 2256 * @arg: arg from ioctl 2257 * 2258 * LOCKING: 2259 * Takes mode config lock. 2260 * 2261 * Remove the FB specified by the user. 2262 * 2263 * Called by the user via ioctl. 2264 * 2265 * RETURNS: 2266 * Zero on success, errno on failure. 2267 */ 2268 int drm_mode_rmfb(struct drm_device *dev, 2269 void *data, struct drm_file *file_priv) 2270 { 2271 struct drm_mode_object *obj; 2272 struct drm_framebuffer *fb = NULL; 2273 struct drm_framebuffer *fbl = NULL; 2274 uint32_t *id = data; 2275 int ret = 0; 2276 int found = 0; 2277 2278 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2279 return -EINVAL; 2280 2281 mutex_lock(&dev->mode_config.mutex); 2282 obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB); 2283 /* TODO check that we really get a framebuffer back. */ 2284 if (!obj) { 2285 ret = -EINVAL; 2286 goto out; 2287 } 2288 fb = obj_to_fb(obj); 2289 2290 list_for_each_entry(fbl, &file_priv->fbs, filp_head) 2291 if (fb == fbl) 2292 found = 1; 2293 2294 if (!found) { 2295 ret = -EINVAL; 2296 goto out; 2297 } 2298 2299 /* TODO release all crtc connected to the framebuffer */ 2300 /* TODO unhock the destructor from the buffer object */ 2301 2302 list_del(&fb->filp_head); 2303 fb->funcs->destroy(fb); 2304 2305 out: 2306 mutex_unlock(&dev->mode_config.mutex); 2307 return ret; 2308 } 2309 2310 /** 2311 * drm_mode_getfb - get FB info 2312 * @inode: inode from the ioctl 2313 * @filp: file * from the ioctl 2314 * @cmd: cmd from ioctl 2315 * @arg: arg from ioctl 2316 * 2317 * LOCKING: 2318 * Takes mode config lock. 2319 * 2320 * Lookup the FB given its ID and return info about it. 2321 * 2322 * Called by the user via ioctl. 2323 * 2324 * RETURNS: 2325 * Zero on success, errno on failure. 2326 */ 2327 int drm_mode_getfb(struct drm_device *dev, 2328 void *data, struct drm_file *file_priv) 2329 { 2330 struct drm_mode_fb_cmd *r = data; 2331 struct drm_mode_object *obj; 2332 struct drm_framebuffer *fb; 2333 int ret = 0; 2334 2335 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2336 return -EINVAL; 2337 2338 mutex_lock(&dev->mode_config.mutex); 2339 obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB); 2340 if (!obj) { 2341 ret = -EINVAL; 2342 goto out; 2343 } 2344 fb = obj_to_fb(obj); 2345 2346 r->height = fb->height; 2347 r->width = fb->width; 2348 r->depth = fb->depth; 2349 r->bpp = fb->bits_per_pixel; 2350 r->pitch = fb->pitches[0]; 2351 fb->funcs->create_handle(fb, file_priv, &r->handle); 2352 2353 out: 2354 mutex_unlock(&dev->mode_config.mutex); 2355 return ret; 2356 } 2357 2358 int drm_mode_dirtyfb_ioctl(struct drm_device *dev, 2359 void *data, struct drm_file *file_priv) 2360 { 2361 struct drm_clip_rect __user *clips_ptr; 2362 struct drm_clip_rect *clips = NULL; 2363 struct drm_mode_fb_dirty_cmd *r = data; 2364 struct drm_mode_object *obj; 2365 struct drm_framebuffer *fb; 2366 unsigned flags; 2367 int num_clips; 2368 int ret = 0; 2369 2370 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2371 return -EINVAL; 2372 2373 mutex_lock(&dev->mode_config.mutex); 2374 obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB); 2375 if (!obj) { 2376 ret = -EINVAL; 2377 goto out_err1; 2378 } 2379 fb = obj_to_fb(obj); 2380 2381 num_clips = r->num_clips; 2382 clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; 2383 2384 if (!num_clips != !clips_ptr) { 2385 ret = -EINVAL; 2386 goto out_err1; 2387 } 2388 2389 flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags; 2390 2391 /* If userspace annotates copy, clips must come in pairs */ 2392 if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) { 2393 ret = -EINVAL; 2394 goto out_err1; 2395 } 2396 2397 if (num_clips && clips_ptr) { 2398 if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) { 2399 ret = -EINVAL; 2400 goto out_err1; 2401 } 2402 clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL); 2403 if (!clips) { 2404 ret = -ENOMEM; 2405 goto out_err1; 2406 } 2407 2408 ret = copy_from_user(clips, clips_ptr, 2409 num_clips * sizeof(*clips)); 2410 if (ret) { 2411 ret = -EFAULT; 2412 goto out_err2; 2413 } 2414 } 2415 2416 if (fb->funcs->dirty) { 2417 ret = fb->funcs->dirty(fb, file_priv, flags, r->color, 2418 clips, num_clips); 2419 } else { 2420 ret = -ENOSYS; 2421 goto out_err2; 2422 } 2423 2424 out_err2: 2425 kfree(clips); 2426 out_err1: 2427 mutex_unlock(&dev->mode_config.mutex); 2428 return ret; 2429 } 2430 2431 2432 /** 2433 * drm_fb_release - remove and free the FBs on this file 2434 * @filp: file * from the ioctl 2435 * 2436 * LOCKING: 2437 * Takes mode config lock. 2438 * 2439 * Destroy all the FBs associated with @filp. 2440 * 2441 * Called by the user via ioctl. 2442 * 2443 * RETURNS: 2444 * Zero on success, errno on failure. 2445 */ 2446 void drm_fb_release(struct drm_file *priv) 2447 { 2448 struct drm_device *dev = priv->minor->dev; 2449 struct drm_framebuffer *fb, *tfb; 2450 2451 mutex_lock(&dev->mode_config.mutex); 2452 list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { 2453 list_del(&fb->filp_head); 2454 fb->funcs->destroy(fb); 2455 } 2456 mutex_unlock(&dev->mode_config.mutex); 2457 } 2458 2459 /** 2460 * drm_mode_attachmode - add a mode to the user mode list 2461 * @dev: DRM device 2462 * @connector: connector to add the mode to 2463 * @mode: mode to add 2464 * 2465 * Add @mode to @connector's user mode list. 2466 */ 2467 static void drm_mode_attachmode(struct drm_device *dev, 2468 struct drm_connector *connector, 2469 struct drm_display_mode *mode) 2470 { 2471 list_add_tail(&mode->head, &connector->user_modes); 2472 } 2473 2474 int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc, 2475 const struct drm_display_mode *mode) 2476 { 2477 struct drm_connector *connector; 2478 int ret = 0; 2479 struct drm_display_mode *dup_mode, *next; 2480 LIST_HEAD(list); 2481 2482 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 2483 if (!connector->encoder) 2484 continue; 2485 if (connector->encoder->crtc == crtc) { 2486 dup_mode = drm_mode_duplicate(dev, mode); 2487 if (!dup_mode) { 2488 ret = -ENOMEM; 2489 goto out; 2490 } 2491 list_add_tail(&dup_mode->head, &list); 2492 } 2493 } 2494 2495 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 2496 if (!connector->encoder) 2497 continue; 2498 if (connector->encoder->crtc == crtc) 2499 list_move_tail(list.next, &connector->user_modes); 2500 } 2501 2502 WARN_ON(!list_empty(&list)); 2503 2504 out: 2505 list_for_each_entry_safe(dup_mode, next, &list, head) 2506 drm_mode_destroy(dev, dup_mode); 2507 2508 return ret; 2509 } 2510 EXPORT_SYMBOL(drm_mode_attachmode_crtc); 2511 2512 static int drm_mode_detachmode(struct drm_device *dev, 2513 struct drm_connector *connector, 2514 struct drm_display_mode *mode) 2515 { 2516 int found = 0; 2517 int ret = 0; 2518 struct drm_display_mode *match_mode, *t; 2519 2520 list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) { 2521 if (drm_mode_equal(match_mode, mode)) { 2522 list_del(&match_mode->head); 2523 drm_mode_destroy(dev, match_mode); 2524 found = 1; 2525 break; 2526 } 2527 } 2528 2529 if (!found) 2530 ret = -EINVAL; 2531 2532 return ret; 2533 } 2534 2535 int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode) 2536 { 2537 struct drm_connector *connector; 2538 2539 list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 2540 drm_mode_detachmode(dev, connector, mode); 2541 } 2542 return 0; 2543 } 2544 EXPORT_SYMBOL(drm_mode_detachmode_crtc); 2545 2546 /** 2547 * drm_fb_attachmode - Attach a user mode to an connector 2548 * @inode: inode from the ioctl 2549 * @filp: file * from the ioctl 2550 * @cmd: cmd from ioctl 2551 * @arg: arg from ioctl 2552 * 2553 * This attaches a user specified mode to an connector. 2554 * Called by the user via ioctl. 2555 * 2556 * RETURNS: 2557 * Zero on success, errno on failure. 2558 */ 2559 int drm_mode_attachmode_ioctl(struct drm_device *dev, 2560 void *data, struct drm_file *file_priv) 2561 { 2562 struct drm_mode_mode_cmd *mode_cmd = data; 2563 struct drm_connector *connector; 2564 struct drm_display_mode *mode; 2565 struct drm_mode_object *obj; 2566 struct drm_mode_modeinfo *umode = &mode_cmd->mode; 2567 int ret = 0; 2568 2569 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2570 return -EINVAL; 2571 2572 mutex_lock(&dev->mode_config.mutex); 2573 2574 obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR); 2575 if (!obj) { 2576 ret = -EINVAL; 2577 goto out; 2578 } 2579 connector = obj_to_connector(obj); 2580 2581 mode = drm_mode_create(dev); 2582 if (!mode) { 2583 ret = -ENOMEM; 2584 goto out; 2585 } 2586 2587 ret = drm_crtc_convert_umode(mode, umode); 2588 if (ret) { 2589 DRM_DEBUG_KMS("Invalid mode\n"); 2590 drm_mode_destroy(dev, mode); 2591 goto out; 2592 } 2593 2594 drm_mode_attachmode(dev, connector, mode); 2595 out: 2596 mutex_unlock(&dev->mode_config.mutex); 2597 return ret; 2598 } 2599 2600 2601 /** 2602 * drm_fb_detachmode - Detach a user specified mode from an connector 2603 * @inode: inode from the ioctl 2604 * @filp: file * from the ioctl 2605 * @cmd: cmd from ioctl 2606 * @arg: arg from ioctl 2607 * 2608 * Called by the user via ioctl. 2609 * 2610 * RETURNS: 2611 * Zero on success, errno on failure. 2612 */ 2613 int drm_mode_detachmode_ioctl(struct drm_device *dev, 2614 void *data, struct drm_file *file_priv) 2615 { 2616 struct drm_mode_object *obj; 2617 struct drm_mode_mode_cmd *mode_cmd = data; 2618 struct drm_connector *connector; 2619 struct drm_display_mode mode; 2620 struct drm_mode_modeinfo *umode = &mode_cmd->mode; 2621 int ret = 0; 2622 2623 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2624 return -EINVAL; 2625 2626 mutex_lock(&dev->mode_config.mutex); 2627 2628 obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR); 2629 if (!obj) { 2630 ret = -EINVAL; 2631 goto out; 2632 } 2633 connector = obj_to_connector(obj); 2634 2635 ret = drm_crtc_convert_umode(&mode, umode); 2636 if (ret) { 2637 DRM_DEBUG_KMS("Invalid mode\n"); 2638 goto out; 2639 } 2640 2641 ret = drm_mode_detachmode(dev, connector, &mode); 2642 out: 2643 mutex_unlock(&dev->mode_config.mutex); 2644 return ret; 2645 } 2646 2647 struct drm_property *drm_property_create(struct drm_device *dev, int flags, 2648 const char *name, int num_values) 2649 { 2650 struct drm_property *property = NULL; 2651 int ret; 2652 2653 property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); 2654 if (!property) 2655 return NULL; 2656 2657 if (num_values) { 2658 property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL); 2659 if (!property->values) 2660 goto fail; 2661 } 2662 2663 ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); 2664 if (ret) 2665 goto fail; 2666 2667 property->flags = flags; 2668 property->num_values = num_values; 2669 INIT_LIST_HEAD(&property->enum_blob_list); 2670 2671 if (name) { 2672 strncpy(property->name, name, DRM_PROP_NAME_LEN); 2673 property->name[DRM_PROP_NAME_LEN-1] = '\0'; 2674 } 2675 2676 list_add_tail(&property->head, &dev->mode_config.property_list); 2677 return property; 2678 fail: 2679 kfree(property->values); 2680 kfree(property); 2681 return NULL; 2682 } 2683 EXPORT_SYMBOL(drm_property_create); 2684 2685 struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, 2686 const char *name, 2687 const struct drm_prop_enum_list *props, 2688 int num_values) 2689 { 2690 struct drm_property *property; 2691 int i, ret; 2692 2693 flags |= DRM_MODE_PROP_ENUM; 2694 2695 property = drm_property_create(dev, flags, name, num_values); 2696 if (!property) 2697 return NULL; 2698 2699 for (i = 0; i < num_values; i++) { 2700 ret = drm_property_add_enum(property, i, 2701 props[i].type, 2702 props[i].name); 2703 if (ret) { 2704 drm_property_destroy(dev, property); 2705 return NULL; 2706 } 2707 } 2708 2709 return property; 2710 } 2711 EXPORT_SYMBOL(drm_property_create_enum); 2712 2713 struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, 2714 const char *name, 2715 uint64_t min, uint64_t max) 2716 { 2717 struct drm_property *property; 2718 2719 flags |= DRM_MODE_PROP_RANGE; 2720 2721 property = drm_property_create(dev, flags, name, 2); 2722 if (!property) 2723 return NULL; 2724 2725 property->values[0] = min; 2726 property->values[1] = max; 2727 2728 return property; 2729 } 2730 EXPORT_SYMBOL(drm_property_create_range); 2731 2732 int drm_property_add_enum(struct drm_property *property, int index, 2733 uint64_t value, const char *name) 2734 { 2735 struct drm_property_enum *prop_enum; 2736 2737 if (!(property->flags & DRM_MODE_PROP_ENUM)) 2738 return -EINVAL; 2739 2740 if (!list_empty(&property->enum_blob_list)) { 2741 list_for_each_entry(prop_enum, &property->enum_blob_list, head) { 2742 if (prop_enum->value == value) { 2743 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); 2744 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; 2745 return 0; 2746 } 2747 } 2748 } 2749 2750 prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); 2751 if (!prop_enum) 2752 return -ENOMEM; 2753 2754 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); 2755 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; 2756 prop_enum->value = value; 2757 2758 property->values[index] = value; 2759 list_add_tail(&prop_enum->head, &property->enum_blob_list); 2760 return 0; 2761 } 2762 EXPORT_SYMBOL(drm_property_add_enum); 2763 2764 void drm_property_destroy(struct drm_device *dev, struct drm_property *property) 2765 { 2766 struct drm_property_enum *prop_enum, *pt; 2767 2768 list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) { 2769 list_del(&prop_enum->head); 2770 kfree(prop_enum); 2771 } 2772 2773 if (property->num_values) 2774 kfree(property->values); 2775 drm_mode_object_put(dev, &property->base); 2776 list_del(&property->head); 2777 kfree(property); 2778 } 2779 EXPORT_SYMBOL(drm_property_destroy); 2780 2781 int drm_connector_attach_property(struct drm_connector *connector, 2782 struct drm_property *property, uint64_t init_val) 2783 { 2784 int i; 2785 2786 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) { 2787 if (connector->property_ids[i] == 0) { 2788 connector->property_ids[i] = property->base.id; 2789 connector->property_values[i] = init_val; 2790 break; 2791 } 2792 } 2793 2794 if (i == DRM_CONNECTOR_MAX_PROPERTY) 2795 return -EINVAL; 2796 return 0; 2797 } 2798 EXPORT_SYMBOL(drm_connector_attach_property); 2799 2800 int drm_connector_property_set_value(struct drm_connector *connector, 2801 struct drm_property *property, uint64_t value) 2802 { 2803 int i; 2804 2805 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) { 2806 if (connector->property_ids[i] == property->base.id) { 2807 connector->property_values[i] = value; 2808 break; 2809 } 2810 } 2811 2812 if (i == DRM_CONNECTOR_MAX_PROPERTY) 2813 return -EINVAL; 2814 return 0; 2815 } 2816 EXPORT_SYMBOL(drm_connector_property_set_value); 2817 2818 int drm_connector_property_get_value(struct drm_connector *connector, 2819 struct drm_property *property, uint64_t *val) 2820 { 2821 int i; 2822 2823 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) { 2824 if (connector->property_ids[i] == property->base.id) { 2825 *val = connector->property_values[i]; 2826 break; 2827 } 2828 } 2829 2830 if (i == DRM_CONNECTOR_MAX_PROPERTY) 2831 return -EINVAL; 2832 return 0; 2833 } 2834 EXPORT_SYMBOL(drm_connector_property_get_value); 2835 2836 int drm_mode_getproperty_ioctl(struct drm_device *dev, 2837 void *data, struct drm_file *file_priv) 2838 { 2839 struct drm_mode_object *obj; 2840 struct drm_mode_get_property *out_resp = data; 2841 struct drm_property *property; 2842 int enum_count = 0; 2843 int blob_count = 0; 2844 int value_count = 0; 2845 int ret = 0, i; 2846 int copied; 2847 struct drm_property_enum *prop_enum; 2848 struct drm_mode_property_enum __user *enum_ptr; 2849 struct drm_property_blob *prop_blob; 2850 uint32_t __user *blob_id_ptr; 2851 uint64_t __user *values_ptr; 2852 uint32_t __user *blob_length_ptr; 2853 2854 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2855 return -EINVAL; 2856 2857 mutex_lock(&dev->mode_config.mutex); 2858 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY); 2859 if (!obj) { 2860 ret = -EINVAL; 2861 goto done; 2862 } 2863 property = obj_to_property(obj); 2864 2865 if (property->flags & DRM_MODE_PROP_ENUM) { 2866 list_for_each_entry(prop_enum, &property->enum_blob_list, head) 2867 enum_count++; 2868 } else if (property->flags & DRM_MODE_PROP_BLOB) { 2869 list_for_each_entry(prop_blob, &property->enum_blob_list, head) 2870 blob_count++; 2871 } 2872 2873 value_count = property->num_values; 2874 2875 strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); 2876 out_resp->name[DRM_PROP_NAME_LEN-1] = 0; 2877 out_resp->flags = property->flags; 2878 2879 if ((out_resp->count_values >= value_count) && value_count) { 2880 values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; 2881 for (i = 0; i < value_count; i++) { 2882 if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { 2883 ret = -EFAULT; 2884 goto done; 2885 } 2886 } 2887 } 2888 out_resp->count_values = value_count; 2889 2890 if (property->flags & DRM_MODE_PROP_ENUM) { 2891 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { 2892 copied = 0; 2893 enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; 2894 list_for_each_entry(prop_enum, &property->enum_blob_list, head) { 2895 2896 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { 2897 ret = -EFAULT; 2898 goto done; 2899 } 2900 2901 if (copy_to_user(&enum_ptr[copied].name, 2902 &prop_enum->name, DRM_PROP_NAME_LEN)) { 2903 ret = -EFAULT; 2904 goto done; 2905 } 2906 copied++; 2907 } 2908 } 2909 out_resp->count_enum_blobs = enum_count; 2910 } 2911 2912 if (property->flags & DRM_MODE_PROP_BLOB) { 2913 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) { 2914 copied = 0; 2915 blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr; 2916 blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr; 2917 2918 list_for_each_entry(prop_blob, &property->enum_blob_list, head) { 2919 if (put_user(prop_blob->base.id, blob_id_ptr + copied)) { 2920 ret = -EFAULT; 2921 goto done; 2922 } 2923 2924 if (put_user(prop_blob->length, blob_length_ptr + copied)) { 2925 ret = -EFAULT; 2926 goto done; 2927 } 2928 2929 copied++; 2930 } 2931 } 2932 out_resp->count_enum_blobs = blob_count; 2933 } 2934 done: 2935 mutex_unlock(&dev->mode_config.mutex); 2936 return ret; 2937 } 2938 2939 static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length, 2940 void *data) 2941 { 2942 struct drm_property_blob *blob; 2943 int ret; 2944 2945 if (!length || !data) 2946 return NULL; 2947 2948 blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); 2949 if (!blob) 2950 return NULL; 2951 2952 ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB); 2953 if (ret) { 2954 kfree(blob); 2955 return NULL; 2956 } 2957 2958 blob->length = length; 2959 2960 memcpy(blob->data, data, length); 2961 2962 list_add_tail(&blob->head, &dev->mode_config.property_blob_list); 2963 return blob; 2964 } 2965 2966 static void drm_property_destroy_blob(struct drm_device *dev, 2967 struct drm_property_blob *blob) 2968 { 2969 drm_mode_object_put(dev, &blob->base); 2970 list_del(&blob->head); 2971 kfree(blob); 2972 } 2973 2974 int drm_mode_getblob_ioctl(struct drm_device *dev, 2975 void *data, struct drm_file *file_priv) 2976 { 2977 struct drm_mode_object *obj; 2978 struct drm_mode_get_blob *out_resp = data; 2979 struct drm_property_blob *blob; 2980 int ret = 0; 2981 void __user *blob_ptr; 2982 2983 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2984 return -EINVAL; 2985 2986 mutex_lock(&dev->mode_config.mutex); 2987 obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB); 2988 if (!obj) { 2989 ret = -EINVAL; 2990 goto done; 2991 } 2992 blob = obj_to_blob(obj); 2993 2994 if (out_resp->length == blob->length) { 2995 blob_ptr = (void __user *)(unsigned long)out_resp->data; 2996 if (copy_to_user(blob_ptr, blob->data, blob->length)){ 2997 ret = -EFAULT; 2998 goto done; 2999 } 3000 } 3001 out_resp->length = blob->length; 3002 3003 done: 3004 mutex_unlock(&dev->mode_config.mutex); 3005 return ret; 3006 } 3007 3008 int drm_mode_connector_update_edid_property(struct drm_connector *connector, 3009 struct edid *edid) 3010 { 3011 struct drm_device *dev = connector->dev; 3012 int ret = 0, size; 3013 3014 if (connector->edid_blob_ptr) 3015 drm_property_destroy_blob(dev, connector->edid_blob_ptr); 3016 3017 /* Delete edid, when there is none. */ 3018 if (!edid) { 3019 connector->edid_blob_ptr = NULL; 3020 ret = drm_connector_property_set_value(connector, dev->mode_config.edid_property, 0); 3021 return ret; 3022 } 3023 3024 size = EDID_LENGTH * (1 + edid->extensions); 3025 connector->edid_blob_ptr = drm_property_create_blob(connector->dev, 3026 size, edid); 3027 3028 ret = drm_connector_property_set_value(connector, 3029 dev->mode_config.edid_property, 3030 connector->edid_blob_ptr->base.id); 3031 3032 return ret; 3033 } 3034 EXPORT_SYMBOL(drm_mode_connector_update_edid_property); 3035 3036 int drm_mode_connector_property_set_ioctl(struct drm_device *dev, 3037 void *data, struct drm_file *file_priv) 3038 { 3039 struct drm_mode_connector_set_property *out_resp = data; 3040 struct drm_mode_object *obj; 3041 struct drm_property *property; 3042 struct drm_connector *connector; 3043 int ret = -EINVAL; 3044 int i; 3045 3046 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3047 return -EINVAL; 3048 3049 mutex_lock(&dev->mode_config.mutex); 3050 3051 obj = drm_mode_object_find(dev, out_resp->connector_id, DRM_MODE_OBJECT_CONNECTOR); 3052 if (!obj) { 3053 goto out; 3054 } 3055 connector = obj_to_connector(obj); 3056 3057 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) { 3058 if (connector->property_ids[i] == out_resp->prop_id) 3059 break; 3060 } 3061 3062 if (i == DRM_CONNECTOR_MAX_PROPERTY) { 3063 goto out; 3064 } 3065 3066 obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY); 3067 if (!obj) { 3068 goto out; 3069 } 3070 property = obj_to_property(obj); 3071 3072 if (property->flags & DRM_MODE_PROP_IMMUTABLE) 3073 goto out; 3074 3075 if (property->flags & DRM_MODE_PROP_RANGE) { 3076 if (out_resp->value < property->values[0]) 3077 goto out; 3078 3079 if (out_resp->value > property->values[1]) 3080 goto out; 3081 } else { 3082 int found = 0; 3083 for (i = 0; i < property->num_values; i++) { 3084 if (property->values[i] == out_resp->value) { 3085 found = 1; 3086 break; 3087 } 3088 } 3089 if (!found) { 3090 goto out; 3091 } 3092 } 3093 3094 /* Do DPMS ourselves */ 3095 if (property == connector->dev->mode_config.dpms_property) { 3096 if (connector->funcs->dpms) 3097 (*connector->funcs->dpms)(connector, (int) out_resp->value); 3098 ret = 0; 3099 } else if (connector->funcs->set_property) 3100 ret = connector->funcs->set_property(connector, property, out_resp->value); 3101 3102 /* store the property value if successful */ 3103 if (!ret) 3104 drm_connector_property_set_value(connector, property, out_resp->value); 3105 out: 3106 mutex_unlock(&dev->mode_config.mutex); 3107 return ret; 3108 } 3109 3110 int drm_mode_connector_attach_encoder(struct drm_connector *connector, 3111 struct drm_encoder *encoder) 3112 { 3113 int i; 3114 3115 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 3116 if (connector->encoder_ids[i] == 0) { 3117 connector->encoder_ids[i] = encoder->base.id; 3118 return 0; 3119 } 3120 } 3121 return -ENOMEM; 3122 } 3123 EXPORT_SYMBOL(drm_mode_connector_attach_encoder); 3124 3125 void drm_mode_connector_detach_encoder(struct drm_connector *connector, 3126 struct drm_encoder *encoder) 3127 { 3128 int i; 3129 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 3130 if (connector->encoder_ids[i] == encoder->base.id) { 3131 connector->encoder_ids[i] = 0; 3132 if (connector->encoder == encoder) 3133 connector->encoder = NULL; 3134 break; 3135 } 3136 } 3137 } 3138 EXPORT_SYMBOL(drm_mode_connector_detach_encoder); 3139 3140 int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, 3141 int gamma_size) 3142 { 3143 crtc->gamma_size = gamma_size; 3144 3145 crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL); 3146 if (!crtc->gamma_store) { 3147 crtc->gamma_size = 0; 3148 return -ENOMEM; 3149 } 3150 3151 return 0; 3152 } 3153 EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); 3154 3155 int drm_mode_gamma_set_ioctl(struct drm_device *dev, 3156 void *data, struct drm_file *file_priv) 3157 { 3158 struct drm_mode_crtc_lut *crtc_lut = data; 3159 struct drm_mode_object *obj; 3160 struct drm_crtc *crtc; 3161 void *r_base, *g_base, *b_base; 3162 int size; 3163 int ret = 0; 3164 3165 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3166 return -EINVAL; 3167 3168 mutex_lock(&dev->mode_config.mutex); 3169 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC); 3170 if (!obj) { 3171 ret = -EINVAL; 3172 goto out; 3173 } 3174 crtc = obj_to_crtc(obj); 3175 3176 /* memcpy into gamma store */ 3177 if (crtc_lut->gamma_size != crtc->gamma_size) { 3178 ret = -EINVAL; 3179 goto out; 3180 } 3181 3182 size = crtc_lut->gamma_size * (sizeof(uint16_t)); 3183 r_base = crtc->gamma_store; 3184 if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { 3185 ret = -EFAULT; 3186 goto out; 3187 } 3188 3189 g_base = r_base + size; 3190 if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { 3191 ret = -EFAULT; 3192 goto out; 3193 } 3194 3195 b_base = g_base + size; 3196 if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { 3197 ret = -EFAULT; 3198 goto out; 3199 } 3200 3201 crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); 3202 3203 out: 3204 mutex_unlock(&dev->mode_config.mutex); 3205 return ret; 3206 3207 } 3208 3209 int drm_mode_gamma_get_ioctl(struct drm_device *dev, 3210 void *data, struct drm_file *file_priv) 3211 { 3212 struct drm_mode_crtc_lut *crtc_lut = data; 3213 struct drm_mode_object *obj; 3214 struct drm_crtc *crtc; 3215 void *r_base, *g_base, *b_base; 3216 int size; 3217 int ret = 0; 3218 3219 if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3220 return -EINVAL; 3221 3222 mutex_lock(&dev->mode_config.mutex); 3223 obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC); 3224 if (!obj) { 3225 ret = -EINVAL; 3226 goto out; 3227 } 3228 crtc = obj_to_crtc(obj); 3229 3230 /* memcpy into gamma store */ 3231 if (crtc_lut->gamma_size != crtc->gamma_size) { 3232 ret = -EINVAL; 3233 goto out; 3234 } 3235 3236 size = crtc_lut->gamma_size * (sizeof(uint16_t)); 3237 r_base = crtc->gamma_store; 3238 if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { 3239 ret = -EFAULT; 3240 goto out; 3241 } 3242 3243 g_base = r_base + size; 3244 if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { 3245 ret = -EFAULT; 3246 goto out; 3247 } 3248 3249 b_base = g_base + size; 3250 if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { 3251 ret = -EFAULT; 3252 goto out; 3253 } 3254 out: 3255 mutex_unlock(&dev->mode_config.mutex); 3256 return ret; 3257 } 3258 3259 int drm_mode_page_flip_ioctl(struct drm_device *dev, 3260 void *data, struct drm_file *file_priv) 3261 { 3262 struct drm_mode_crtc_page_flip *page_flip = data; 3263 struct drm_mode_object *obj; 3264 struct drm_crtc *crtc; 3265 struct drm_framebuffer *fb; 3266 struct drm_pending_vblank_event *e = NULL; 3267 unsigned long flags; 3268 int ret = -EINVAL; 3269 3270 if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS || 3271 page_flip->reserved != 0) 3272 return -EINVAL; 3273 3274 mutex_lock(&dev->mode_config.mutex); 3275 obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC); 3276 if (!obj) 3277 goto out; 3278 crtc = obj_to_crtc(obj); 3279 3280 if (crtc->fb == NULL) { 3281 /* The framebuffer is currently unbound, presumably 3282 * due to a hotplug event, that userspace has not 3283 * yet discovered. 3284 */ 3285 ret = -EBUSY; 3286 goto out; 3287 } 3288 3289 if (crtc->funcs->page_flip == NULL) 3290 goto out; 3291 3292 obj = drm_mode_object_find(dev, page_flip->fb_id, DRM_MODE_OBJECT_FB); 3293 if (!obj) 3294 goto out; 3295 fb = obj_to_fb(obj); 3296 3297 if (crtc->mode.hdisplay > fb->width || 3298 crtc->mode.vdisplay > fb->height || 3299 crtc->x > fb->width - crtc->mode.hdisplay || 3300 crtc->y > fb->height - crtc->mode.vdisplay) { 3301 DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d.\n", 3302 fb->width, fb->height, 3303 crtc->mode.hdisplay, crtc->mode.vdisplay, 3304 crtc->x, crtc->y); 3305 ret = -ENOSPC; 3306 goto out; 3307 } 3308 3309 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { 3310 ret = -ENOMEM; 3311 spin_lock_irqsave(&dev->event_lock, flags); 3312 if (file_priv->event_space < sizeof e->event) { 3313 spin_unlock_irqrestore(&dev->event_lock, flags); 3314 goto out; 3315 } 3316 file_priv->event_space -= sizeof e->event; 3317 spin_unlock_irqrestore(&dev->event_lock, flags); 3318 3319 e = kzalloc(sizeof *e, GFP_KERNEL); 3320 if (e == NULL) { 3321 spin_lock_irqsave(&dev->event_lock, flags); 3322 file_priv->event_space += sizeof e->event; 3323 spin_unlock_irqrestore(&dev->event_lock, flags); 3324 goto out; 3325 } 3326 3327 e->event.base.type = DRM_EVENT_FLIP_COMPLETE; 3328 e->event.base.length = sizeof e->event; 3329 e->event.user_data = page_flip->user_data; 3330 e->base.event = &e->event.base; 3331 e->base.file_priv = file_priv; 3332 e->base.destroy = 3333 (void (*) (struct drm_pending_event *)) kfree; 3334 } 3335 3336 ret = crtc->funcs->page_flip(crtc, fb, e); 3337 if (ret) { 3338 if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { 3339 spin_lock_irqsave(&dev->event_lock, flags); 3340 file_priv->event_space += sizeof e->event; 3341 spin_unlock_irqrestore(&dev->event_lock, flags); 3342 kfree(e); 3343 } 3344 } 3345 3346 out: 3347 mutex_unlock(&dev->mode_config.mutex); 3348 return ret; 3349 } 3350 3351 void drm_mode_config_reset(struct drm_device *dev) 3352 { 3353 struct drm_crtc *crtc; 3354 struct drm_encoder *encoder; 3355 struct drm_connector *connector; 3356 3357 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) 3358 if (crtc->funcs->reset) 3359 crtc->funcs->reset(crtc); 3360 3361 list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) 3362 if (encoder->funcs->reset) 3363 encoder->funcs->reset(encoder); 3364 3365 list_for_each_entry(connector, &dev->mode_config.connector_list, head) 3366 if (connector->funcs->reset) 3367 connector->funcs->reset(connector); 3368 } 3369 EXPORT_SYMBOL(drm_mode_config_reset); 3370 3371 int drm_mode_create_dumb_ioctl(struct drm_device *dev, 3372 void *data, struct drm_file *file_priv) 3373 { 3374 struct drm_mode_create_dumb *args = data; 3375 3376 if (!dev->driver->dumb_create) 3377 return -ENOSYS; 3378 return dev->driver->dumb_create(file_priv, dev, args); 3379 } 3380 3381 int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, 3382 void *data, struct drm_file *file_priv) 3383 { 3384 struct drm_mode_map_dumb *args = data; 3385 3386 /* call driver ioctl to get mmap offset */ 3387 if (!dev->driver->dumb_map_offset) 3388 return -ENOSYS; 3389 3390 return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); 3391 } 3392 3393 int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, 3394 void *data, struct drm_file *file_priv) 3395 { 3396 struct drm_mode_destroy_dumb *args = data; 3397 3398 if (!dev->driver->dumb_destroy) 3399 return -ENOSYS; 3400 3401 return dev->driver->dumb_destroy(file_priv, dev, args->handle); 3402 } 3403 3404 /* 3405 * Just need to support RGB formats here for compat with code that doesn't 3406 * use pixel formats directly yet. 3407 */ 3408 void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, 3409 int *bpp) 3410 { 3411 switch (format) { 3412 case DRM_FORMAT_RGB332: 3413 case DRM_FORMAT_BGR233: 3414 *depth = 8; 3415 *bpp = 8; 3416 break; 3417 case DRM_FORMAT_XRGB1555: 3418 case DRM_FORMAT_XBGR1555: 3419 case DRM_FORMAT_RGBX5551: 3420 case DRM_FORMAT_BGRX5551: 3421 case DRM_FORMAT_ARGB1555: 3422 case DRM_FORMAT_ABGR1555: 3423 case DRM_FORMAT_RGBA5551: 3424 case DRM_FORMAT_BGRA5551: 3425 *depth = 15; 3426 *bpp = 16; 3427 break; 3428 case DRM_FORMAT_RGB565: 3429 case DRM_FORMAT_BGR565: 3430 *depth = 16; 3431 *bpp = 16; 3432 break; 3433 case DRM_FORMAT_RGB888: 3434 case DRM_FORMAT_BGR888: 3435 *depth = 24; 3436 *bpp = 24; 3437 break; 3438 case DRM_FORMAT_XRGB8888: 3439 case DRM_FORMAT_XBGR8888: 3440 case DRM_FORMAT_RGBX8888: 3441 case DRM_FORMAT_BGRX8888: 3442 *depth = 24; 3443 *bpp = 32; 3444 break; 3445 case DRM_FORMAT_XRGB2101010: 3446 case DRM_FORMAT_XBGR2101010: 3447 case DRM_FORMAT_RGBX1010102: 3448 case DRM_FORMAT_BGRX1010102: 3449 case DRM_FORMAT_ARGB2101010: 3450 case DRM_FORMAT_ABGR2101010: 3451 case DRM_FORMAT_RGBA1010102: 3452 case DRM_FORMAT_BGRA1010102: 3453 *depth = 30; 3454 *bpp = 32; 3455 break; 3456 case DRM_FORMAT_ARGB8888: 3457 case DRM_FORMAT_ABGR8888: 3458 case DRM_FORMAT_RGBA8888: 3459 case DRM_FORMAT_BGRA8888: 3460 *depth = 32; 3461 *bpp = 32; 3462 break; 3463 default: 3464 DRM_DEBUG_KMS("unsupported pixel format\n"); 3465 *depth = 0; 3466 *bpp = 0; 3467 break; 3468 } 3469 } 3470 EXPORT_SYMBOL(drm_fb_get_bpp_depth); 3471