SAFE public projects git trees. - safe/jmp/linux-2.6/blob - drivers/gpu/drm/drm_crtc.c

   1 /*
   2  * Copyright (c) 2006-2008 Intel Corporation
   3  * Copyright (c) 2007 Dave Airlie <airlied@linux.ie>
   4  * Copyright (c) 2008 Red Hat Inc.
   5  *
   6  * DRM core CRTC related functions
   7  *
   8  * Permission to use, copy, modify, distribute, and sell this software and its
   9  * documentation for any purpose is hereby granted without fee, provided that
  10  * the above copyright notice appear in all copies and that both that copyright
  11  * notice and this permission notice appear in supporting documentation, and
  12  * that the name of the copyright holders not be used in advertising or
  13  * publicity pertaining to distribution of the software without specific,
  14  * written prior permission.  The copyright holders make no representations
  15  * about the suitability of this software for any purpose.  It is provided "as
  16  * is" without express or implied warranty.
  17  *
  18  * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
  19  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
  20  * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
  21  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
  22  * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
  23  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
  24  * OF THIS SOFTWARE.
  25  *
  26  * Authors:
  27  *      Keith Packard
  28  *      Eric Anholt <eric@anholt.net>
  29  *      Dave Airlie <airlied@linux.ie>
  30  *      Jesse Barnes <jesse.barnes@intel.com>
  31  */
  32 #include <linux/list.h>
  33 #include "drm.h"
  34 #include "drmP.h"
  35 #include "drm_crtc.h"
  36
  37 struct drm_prop_enum_list {
  38         int type;
  39         char *name;
  40 };
  41
  42 /* Avoid boilerplate.  I'm tired of typing. */
  43 #define DRM_ENUM_NAME_FN(fnname, list)                          \
  44         char *fnname(int val)                                   \
  45         {                                                       \
  46                 int i;                                          \
  47                 for (i = 0; i < ARRAY_SIZE(list); i++) {        \
  48                         if (list[i].type == val)                \
  49                                 return list[i].name;            \
  50                 }                                               \
  51                 return "(unknown)";                             \
  52         }
  53
  54 /*
  55  * Global properties
  56  */
  57 static struct drm_prop_enum_list drm_dpms_enum_list[] =
  58 {       { DRM_MODE_DPMS_ON, "On" },
  59         { DRM_MODE_DPMS_STANDBY, "Standby" },
  60         { DRM_MODE_DPMS_SUSPEND, "Suspend" },
  61         { DRM_MODE_DPMS_OFF, "Off" }
  62 };
  63
  64 DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list)
  65
  66 /*
  67  * Optional properties
  68  */
  69 static struct drm_prop_enum_list drm_scaling_mode_enum_list[] =
  70 {
  71         { DRM_MODE_SCALE_NONE, "None" },
  72         { DRM_MODE_SCALE_FULLSCREEN, "Full" },
  73         { DRM_MODE_SCALE_CENTER, "Center" },
  74         { DRM_MODE_SCALE_ASPECT, "Full aspect" },
  75 };
  76
  77 static struct drm_prop_enum_list drm_dithering_mode_enum_list[] =
  78 {
  79         { DRM_MODE_DITHERING_OFF, "Off" },
  80         { DRM_MODE_DITHERING_ON, "On" },
  81 };
  82
  83 /*
  84  * Non-global properties, but "required" for certain connectors.
  85  */
  86 static struct drm_prop_enum_list drm_dvi_i_select_enum_list[] =
  87 {
  88         { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
  89         { DRM_MODE_SUBCONNECTOR_DVID,      "DVI-D"     }, /* DVI-I  */
  90         { DRM_MODE_SUBCONNECTOR_DVIA,      "DVI-A"     }, /* DVI-I  */
  91 };
  92
  93 DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list)
  94
  95 static struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] =
  96 {
  97         { DRM_MODE_SUBCONNECTOR_Unknown,   "Unknown"   }, /* DVI-I and TV-out */
  98         { DRM_MODE_SUBCONNECTOR_DVID,      "DVI-D"     }, /* DVI-I  */
  99         { DRM_MODE_SUBCONNECTOR_DVIA,      "DVI-A"     }, /* DVI-I  */
 100 };
 101
 102 DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name,
 103                  drm_dvi_i_subconnector_enum_list)
 104
 105 static struct drm_prop_enum_list drm_tv_select_enum_list[] =
 106 {
 107         { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */
 108         { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
 109         { DRM_MODE_SUBCONNECTOR_SVIDEO,    "SVIDEO"    }, /* TV-out */
 110         { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
 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 struct drm_conn_prop_enum_list {
 129         int type;
 130         char *name;
 131         int count;
 132 };
 133
 134 /*
 135  * Connector and encoder types.
 136  */
 137 static struct drm_conn_prop_enum_list drm_connector_enum_list[] =
 138 {       { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 },
 139         { DRM_MODE_CONNECTOR_VGA, "VGA", 0 },
 140         { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 },
 141         { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 },
 142         { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 },
 143         { DRM_MODE_CONNECTOR_Composite, "Composite", 0 },
 144         { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 },
 145         { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 },
 146         { DRM_MODE_CONNECTOR_Component, "Component", 0 },
 147         { DRM_MODE_CONNECTOR_9PinDIN, "9-pin DIN", 0 },
 148         { DRM_MODE_CONNECTOR_DisplayPort, "DisplayPort", 0 },
 149         { DRM_MODE_CONNECTOR_HDMIA, "HDMI Type A", 0 },
 150         { DRM_MODE_CONNECTOR_HDMIB, "HDMI Type B", 0 },
 151         { DRM_MODE_CONNECTOR_TV, "TV", 0 },
 152 };
 153
 154 static struct drm_prop_enum_list drm_encoder_enum_list[] =
 155 {       { DRM_MODE_ENCODER_NONE, "None" },
 156         { DRM_MODE_ENCODER_DAC, "DAC" },
 157         { DRM_MODE_ENCODER_TMDS, "TMDS" },
 158         { DRM_MODE_ENCODER_LVDS, "LVDS" },
 159         { DRM_MODE_ENCODER_TVDAC, "TV" },
 160 };
 161
 162 char *drm_get_encoder_name(struct drm_encoder *encoder)
 163 {
 164         static char buf[32];
 165
 166         snprintf(buf, 32, "%s-%d",
 167                  drm_encoder_enum_list[encoder->encoder_type].name,
 168                  encoder->base.id);
 169         return buf;
 170 }
 171 EXPORT_SYMBOL(drm_get_encoder_name);
 172
 173 char *drm_get_connector_name(struct drm_connector *connector)
 174 {
 175         static char buf[32];
 176
 177         snprintf(buf, 32, "%s-%d",
 178                  drm_connector_enum_list[connector->connector_type].name,
 179                  connector->connector_type_id);
 180         return buf;
 181 }
 182 EXPORT_SYMBOL(drm_get_connector_name);
 183
 184 char *drm_get_connector_status_name(enum drm_connector_status status)
 185 {
 186         if (status == connector_status_connected)
 187                 return "connected";
 188         else if (status == connector_status_disconnected)
 189                 return "disconnected";
 190         else
 191                 return "unknown";
 192 }
 193
 194 /**
 195  * drm_mode_object_get - allocate a new identifier
 196  * @dev: DRM device
 197  * @ptr: object pointer, used to generate unique ID
 198  * @type: object type
 199  *
 200  * LOCKING:
 201  *
 202  * Create a unique identifier based on @ptr in @dev's identifier space.  Used
 203  * for tracking modes, CRTCs and connectors.
 204  *
 205  * RETURNS:
 206  * New unique (relative to other objects in @dev) integer identifier for the
 207  * object.
 208  */
 209 static int drm_mode_object_get(struct drm_device *dev,
 210                                struct drm_mode_object *obj, uint32_t obj_type)
 211 {
 212         int new_id = 0;
 213         int ret;
 214
 215 again:
 216         if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) {
 217                 DRM_ERROR("Ran out memory getting a mode number\n");
 218                 return -EINVAL;
 219         }
 220
 221         mutex_lock(&dev->mode_config.idr_mutex);
 222         ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id);
 223         mutex_unlock(&dev->mode_config.idr_mutex);
 224         if (ret == -EAGAIN)
 225                 goto again;
 226
 227         obj->id = new_id;
 228         obj->type = obj_type;
 229         return 0;
 230 }
 231
 232 /**
 233  * drm_mode_object_put - free an identifer
 234  * @dev: DRM device
 235  * @id: ID to free
 236  *
 237  * LOCKING:
 238  * Caller must hold DRM mode_config lock.
 239  *
 240  * Free @id from @dev's unique identifier pool.
 241  */
 242 static void drm_mode_object_put(struct drm_device *dev,
 243                                 struct drm_mode_object *object)
 244 {
 245         mutex_lock(&dev->mode_config.idr_mutex);
 246         idr_remove(&dev->mode_config.crtc_idr, object->id);
 247         mutex_unlock(&dev->mode_config.idr_mutex);
 248 }
 249
 250 void *drm_mode_object_find(struct drm_device *dev, uint32_t id, uint32_t type)
 251 {
 252         struct drm_mode_object *obj = NULL;
 253
 254         mutex_lock(&dev->mode_config.idr_mutex);
 255         obj = idr_find(&dev->mode_config.crtc_idr, id);
 256         if (!obj || (obj->type != type) || (obj->id != id))
 257                 obj = NULL;
 258         mutex_unlock(&dev->mode_config.idr_mutex);
 259
 260         return obj;
 261 }
 262 EXPORT_SYMBOL(drm_mode_object_find);
 263
 264 /**
 265  * drm_framebuffer_init - initialize a framebuffer
 266  * @dev: DRM device
 267  *
 268  * LOCKING:
 269  * Caller must hold mode config lock.
 270  *
 271  * Allocates an ID for the framebuffer's parent mode object, sets its mode
 272  * functions & device file and adds it to the master fd list.
 273  *
 274  * RETURNS:
 275  * Zero on success, error code on falure.
 276  */
 277 int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
 278                          const struct drm_framebuffer_funcs *funcs)
 279 {
 280         int ret;
 281
 282         ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
 283         if (ret) {
 284                 return ret;
 285         }
 286
 287         fb->dev = dev;
 288         fb->funcs = funcs;
 289         dev->mode_config.num_fb++;
 290         list_add(&fb->head, &dev->mode_config.fb_list);
 291
 292         return 0;
 293 }
 294 EXPORT_SYMBOL(drm_framebuffer_init);
 295
 296 /**
 297  * drm_framebuffer_cleanup - remove a framebuffer object
 298  * @fb: framebuffer to remove
 299  *
 300  * LOCKING:
 301  * Caller must hold mode config lock.
 302  *
 303  * Scans all the CRTCs in @dev's mode_config.  If they're using @fb, removes
 304  * it, setting it to NULL.
 305  */
 306 void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
 307 {
 308         struct drm_device *dev = fb->dev;
 309         struct drm_crtc *crtc;
 310         struct drm_mode_set set;
 311         int ret;
 312
 313         /* remove from any CRTC */
 314         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 315                 if (crtc->fb == fb) {
 316                         /* should turn off the crtc */
 317                         memset(&set, 0, sizeof(struct drm_mode_set));
 318                         set.crtc = crtc;
 319                         set.fb = NULL;
 320                         ret = crtc->funcs->set_config(&set);
 321                         if (ret)
 322                                 DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
 323                 }
 324         }
 325
 326         drm_mode_object_put(dev, &fb->base);
 327         list_del(&fb->head);
 328         dev->mode_config.num_fb--;
 329 }
 330 EXPORT_SYMBOL(drm_framebuffer_cleanup);
 331
 332 /**
 333  * drm_crtc_init - Initialise a new CRTC object
 334  * @dev: DRM device
 335  * @crtc: CRTC object to init
 336  * @funcs: callbacks for the new CRTC
 337  *
 338  * LOCKING:
 339  * Caller must hold mode config lock.
 340  *
 341  * Inits a new object created as base part of an driver crtc object.
 342  */
 343 void drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
 344                    const struct drm_crtc_funcs *funcs)
 345 {
 346         crtc->dev = dev;
 347         crtc->funcs = funcs;
 348
 349         mutex_lock(&dev->mode_config.mutex);
 350         drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
 351
 352         list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
 353         dev->mode_config.num_crtc++;
 354         mutex_unlock(&dev->mode_config.mutex);
 355 }
 356 EXPORT_SYMBOL(drm_crtc_init);
 357
 358 /**
 359  * drm_crtc_cleanup - Cleans up the core crtc usage.
 360  * @crtc: CRTC to cleanup
 361  *
 362  * LOCKING:
 363  * Caller must hold mode config lock.
 364  *
 365  * Cleanup @crtc. Removes from drm modesetting space
 366  * does NOT free object, caller does that.
 367  */
 368 void drm_crtc_cleanup(struct drm_crtc *crtc)
 369 {
 370         struct drm_device *dev = crtc->dev;
 371
 372         if (crtc->gamma_store) {
 373                 kfree(crtc->gamma_store);
 374                 crtc->gamma_store = NULL;
 375         }
 376
 377         drm_mode_object_put(dev, &crtc->base);
 378         list_del(&crtc->head);
 379         dev->mode_config.num_crtc--;
 380 }
 381 EXPORT_SYMBOL(drm_crtc_cleanup);
 382
 383 /**
 384  * drm_mode_probed_add - add a mode to a connector's probed mode list
 385  * @connector: connector the new mode
 386  * @mode: mode data
 387  *
 388  * LOCKING:
 389  * Caller must hold mode config lock.
 390  *
 391  * Add @mode to @connector's mode list for later use.
 392  */
 393 void drm_mode_probed_add(struct drm_connector *connector,
 394                          struct drm_display_mode *mode)
 395 {
 396         list_add(&mode->head, &connector->probed_modes);
 397 }
 398 EXPORT_SYMBOL(drm_mode_probed_add);
 399
 400 /**
 401  * drm_mode_remove - remove and free a mode
 402  * @connector: connector list to modify
 403  * @mode: mode to remove
 404  *
 405  * LOCKING:
 406  * Caller must hold mode config lock.
 407  *
 408  * Remove @mode from @connector's mode list, then free it.
 409  */
 410 void drm_mode_remove(struct drm_connector *connector,
 411                      struct drm_display_mode *mode)
 412 {
 413         list_del(&mode->head);
 414         kfree(mode);
 415 }
 416 EXPORT_SYMBOL(drm_mode_remove);
 417
 418 /**
 419  * drm_connector_init - Init a preallocated connector
 420  * @dev: DRM device
 421  * @connector: the connector to init
 422  * @funcs: callbacks for this connector
 423  * @name: user visible name of the connector
 424  *
 425  * LOCKING:
 426  * Caller must hold @dev's mode_config lock.
 427  *
 428  * Initialises a preallocated connector. Connectors should be
 429  * subclassed as part of driver connector objects.
 430  */
 431 void drm_connector_init(struct drm_device *dev,
 432                      struct drm_connector *connector,
 433                      const struct drm_connector_funcs *funcs,
 434                      int connector_type)
 435 {
 436         mutex_lock(&dev->mode_config.mutex);
 437
 438         connector->dev = dev;
 439         connector->funcs = funcs;
 440         drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
 441         connector->connector_type = connector_type;
 442         connector->connector_type_id =
 443                 ++drm_connector_enum_list[connector_type].count; /* TODO */
 444         INIT_LIST_HEAD(&connector->user_modes);
 445         INIT_LIST_HEAD(&connector->probed_modes);
 446         INIT_LIST_HEAD(&connector->modes);
 447         connector->edid_blob_ptr = NULL;
 448
 449         list_add_tail(&connector->head, &dev->mode_config.connector_list);
 450         dev->mode_config.num_connector++;
 451
 452         drm_connector_attach_property(connector,
 453                                       dev->mode_config.edid_property, 0);
 454
 455         drm_connector_attach_property(connector,
 456                                       dev->mode_config.dpms_property, 0);
 457
 458         mutex_unlock(&dev->mode_config.mutex);
 459 }
 460 EXPORT_SYMBOL(drm_connector_init);
 461
 462 /**
 463  * drm_connector_cleanup - cleans up an initialised connector
 464  * @connector: connector to cleanup
 465  *
 466  * LOCKING:
 467  * Caller must hold @dev's mode_config lock.
 468  *
 469  * Cleans up the connector but doesn't free the object.
 470  */
 471 void drm_connector_cleanup(struct drm_connector *connector)
 472 {
 473         struct drm_device *dev = connector->dev;
 474         struct drm_display_mode *mode, *t;
 475
 476         list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
 477                 drm_mode_remove(connector, mode);
 478
 479         list_for_each_entry_safe(mode, t, &connector->modes, head)
 480                 drm_mode_remove(connector, mode);
 481
 482         list_for_each_entry_safe(mode, t, &connector->user_modes, head)
 483                 drm_mode_remove(connector, mode);
 484
 485         kfree(connector->fb_helper_private);
 486         mutex_lock(&dev->mode_config.mutex);
 487         drm_mode_object_put(dev, &connector->base);
 488         list_del(&connector->head);
 489         mutex_unlock(&dev->mode_config.mutex);
 490 }
 491 EXPORT_SYMBOL(drm_connector_cleanup);
 492
 493 void drm_encoder_init(struct drm_device *dev,
 494                       struct drm_encoder *encoder,
 495                       const struct drm_encoder_funcs *funcs,
 496                       int encoder_type)
 497 {
 498         mutex_lock(&dev->mode_config.mutex);
 499
 500         encoder->dev = dev;
 501
 502         drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
 503         encoder->encoder_type = encoder_type;
 504         encoder->funcs = funcs;
 505
 506         list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
 507         dev->mode_config.num_encoder++;
 508
 509         mutex_unlock(&dev->mode_config.mutex);
 510 }
 511 EXPORT_SYMBOL(drm_encoder_init);
 512
 513 void drm_encoder_cleanup(struct drm_encoder *encoder)
 514 {
 515         struct drm_device *dev = encoder->dev;
 516         mutex_lock(&dev->mode_config.mutex);
 517         drm_mode_object_put(dev, &encoder->base);
 518         list_del(&encoder->head);
 519         mutex_unlock(&dev->mode_config.mutex);
 520 }
 521 EXPORT_SYMBOL(drm_encoder_cleanup);
 522
 523 /**
 524  * drm_mode_create - create a new display mode
 525  * @dev: DRM device
 526  *
 527  * LOCKING:
 528  * Caller must hold DRM mode_config lock.
 529  *
 530  * Create a new drm_display_mode, give it an ID, and return it.
 531  *
 532  * RETURNS:
 533  * Pointer to new mode on success, NULL on error.
 534  */
 535 struct drm_display_mode *drm_mode_create(struct drm_device *dev)
 536 {
 537         struct drm_display_mode *nmode;
 538
 539         nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
 540         if (!nmode)
 541                 return NULL;
 542
 543         drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE);
 544         return nmode;
 545 }
 546 EXPORT_SYMBOL(drm_mode_create);
 547
 548 /**
 549  * drm_mode_destroy - remove a mode
 550  * @dev: DRM device
 551  * @mode: mode to remove
 552  *
 553  * LOCKING:
 554  * Caller must hold mode config lock.
 555  *
 556  * Free @mode's unique identifier, then free it.
 557  */
 558 void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
 559 {
 560         drm_mode_object_put(dev, &mode->base);
 561
 562         kfree(mode);
 563 }
 564 EXPORT_SYMBOL(drm_mode_destroy);
 565
 566 static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
 567 {
 568         struct drm_property *edid;
 569         struct drm_property *dpms;
 570         int i;
 571
 572         /*
 573          * Standard properties (apply to all connectors)
 574          */
 575         edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
 576                                    DRM_MODE_PROP_IMMUTABLE,
 577                                    "EDID", 0);
 578         dev->mode_config.edid_property = edid;
 579
 580         dpms = drm_property_create(dev, DRM_MODE_PROP_ENUM,
 581                                    "DPMS", ARRAY_SIZE(drm_dpms_enum_list));
 582         for (i = 0; i < ARRAY_SIZE(drm_dpms_enum_list); i++)
 583                 drm_property_add_enum(dpms, i, drm_dpms_enum_list[i].type,
 584                                       drm_dpms_enum_list[i].name);
 585         dev->mode_config.dpms_property = dpms;
 586
 587         return 0;
 588 }
 589
 590 /**
 591  * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
 592  * @dev: DRM device
 593  *
 594  * Called by a driver the first time a DVI-I connector is made.
 595  */
 596 int drm_mode_create_dvi_i_properties(struct drm_device *dev)
 597 {
 598         struct drm_property *dvi_i_selector;
 599         struct drm_property *dvi_i_subconnector;
 600         int i;
 601
 602         if (dev->mode_config.dvi_i_select_subconnector_property)
 603                 return 0;
 604
 605         dvi_i_selector =
 606                 drm_property_create(dev, DRM_MODE_PROP_ENUM,
 607                                     "select subconnector",
 608                                     ARRAY_SIZE(drm_dvi_i_select_enum_list));
 609         for (i = 0; i < ARRAY_SIZE(drm_dvi_i_select_enum_list); i++)
 610                 drm_property_add_enum(dvi_i_selector, i,
 611                                       drm_dvi_i_select_enum_list[i].type,
 612                                       drm_dvi_i_select_enum_list[i].name);
 613         dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
 614
 615         dvi_i_subconnector =
 616                 drm_property_create(dev, DRM_MODE_PROP_ENUM |
 617                                     DRM_MODE_PROP_IMMUTABLE,
 618                                     "subconnector",
 619                                     ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
 620         for (i = 0; i < ARRAY_SIZE(drm_dvi_i_subconnector_enum_list); i++)
 621                 drm_property_add_enum(dvi_i_subconnector, i,
 622                                       drm_dvi_i_subconnector_enum_list[i].type,
 623                                       drm_dvi_i_subconnector_enum_list[i].name);
 624         dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
 625
 626         return 0;
 627 }
 628 EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
 629
 630 /**
 631  * drm_create_tv_properties - create TV specific connector properties
 632  * @dev: DRM device
 633  * @num_modes: number of different TV formats (modes) supported
 634  * @modes: array of pointers to strings containing name of each format
 635  *
 636  * Called by a driver's TV initialization routine, this function creates
 637  * the TV specific connector properties for a given device.  Caller is
 638  * responsible for allocating a list of format names and passing them to
 639  * this routine.
 640  */
 641 int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
 642                                   char *modes[])
 643 {
 644         struct drm_property *tv_selector;
 645         struct drm_property *tv_subconnector;
 646         int i;
 647
 648         if (dev->mode_config.tv_select_subconnector_property)
 649                 return 0;
 650
 651         /*
 652          * Basic connector properties
 653          */
 654         tv_selector = drm_property_create(dev, DRM_MODE_PROP_ENUM,
 655                                           "select subconnector",
 656                                           ARRAY_SIZE(drm_tv_select_enum_list));
 657         for (i = 0; i < ARRAY_SIZE(drm_tv_select_enum_list); i++)
 658                 drm_property_add_enum(tv_selector, i,
 659                                       drm_tv_select_enum_list[i].type,
 660                                       drm_tv_select_enum_list[i].name);
 661         dev->mode_config.tv_select_subconnector_property = tv_selector;
 662
 663         tv_subconnector =
 664                 drm_property_create(dev, DRM_MODE_PROP_ENUM |
 665                                     DRM_MODE_PROP_IMMUTABLE, "subconnector",
 666                                     ARRAY_SIZE(drm_tv_subconnector_enum_list));
 667         for (i = 0; i < ARRAY_SIZE(drm_tv_subconnector_enum_list); i++)
 668                 drm_property_add_enum(tv_subconnector, i,
 669                                       drm_tv_subconnector_enum_list[i].type,
 670                                       drm_tv_subconnector_enum_list[i].name);
 671         dev->mode_config.tv_subconnector_property = tv_subconnector;
 672
 673         /*
 674          * Other, TV specific properties: margins & TV modes.
 675          */
 676         dev->mode_config.tv_left_margin_property =
 677                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 678                                     "left margin", 2);
 679         dev->mode_config.tv_left_margin_property->values[0] = 0;
 680         dev->mode_config.tv_left_margin_property->values[1] = 100;
 681
 682         dev->mode_config.tv_right_margin_property =
 683                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 684                                     "right margin", 2);
 685         dev->mode_config.tv_right_margin_property->values[0] = 0;
 686         dev->mode_config.tv_right_margin_property->values[1] = 100;
 687
 688         dev->mode_config.tv_top_margin_property =
 689                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 690                                     "top margin", 2);
 691         dev->mode_config.tv_top_margin_property->values[0] = 0;
 692         dev->mode_config.tv_top_margin_property->values[1] = 100;
 693
 694         dev->mode_config.tv_bottom_margin_property =
 695                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 696                                     "bottom margin", 2);
 697         dev->mode_config.tv_bottom_margin_property->values[0] = 0;
 698         dev->mode_config.tv_bottom_margin_property->values[1] = 100;
 699
 700         dev->mode_config.tv_mode_property =
 701                 drm_property_create(dev, DRM_MODE_PROP_ENUM,
 702                                     "mode", num_modes);
 703         for (i = 0; i < num_modes; i++)
 704                 drm_property_add_enum(dev->mode_config.tv_mode_property, i,
 705                                       i, modes[i]);
 706
 707         dev->mode_config.tv_brightness_property =
 708                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 709                                     "brightness", 2);
 710         dev->mode_config.tv_brightness_property->values[0] = 0;
 711         dev->mode_config.tv_brightness_property->values[1] = 100;
 712
 713         dev->mode_config.tv_contrast_property =
 714                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 715                                     "contrast", 2);
 716         dev->mode_config.tv_contrast_property->values[0] = 0;
 717         dev->mode_config.tv_contrast_property->values[1] = 100;
 718
 719         dev->mode_config.tv_flicker_reduction_property =
 720                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 721                                     "flicker reduction", 2);
 722         dev->mode_config.tv_flicker_reduction_property->values[0] = 0;
 723         dev->mode_config.tv_flicker_reduction_property->values[1] = 100;
 724
 725         dev->mode_config.tv_overscan_property =
 726                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 727                                     "overscan", 2);
 728         dev->mode_config.tv_overscan_property->values[0] = 0;
 729         dev->mode_config.tv_overscan_property->values[1] = 100;
 730
 731         dev->mode_config.tv_saturation_property =
 732                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 733                                     "saturation", 2);
 734         dev->mode_config.tv_saturation_property->values[0] = 0;
 735         dev->mode_config.tv_saturation_property->values[1] = 100;
 736
 737         dev->mode_config.tv_hue_property =
 738                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 739                                     "hue", 2);
 740         dev->mode_config.tv_hue_property->values[0] = 0;
 741         dev->mode_config.tv_hue_property->values[1] = 100;
 742
 743         return 0;
 744 }
 745 EXPORT_SYMBOL(drm_mode_create_tv_properties);
 746
 747 /**
 748  * drm_mode_create_scaling_mode_property - create scaling mode property
 749  * @dev: DRM device
 750  *
 751  * Called by a driver the first time it's needed, must be attached to desired
 752  * connectors.
 753  */
 754 int drm_mode_create_scaling_mode_property(struct drm_device *dev)
 755 {
 756         struct drm_property *scaling_mode;
 757         int i;
 758
 759         if (dev->mode_config.scaling_mode_property)
 760                 return 0;
 761
 762         scaling_mode =
 763                 drm_property_create(dev, DRM_MODE_PROP_ENUM, "scaling mode",
 764                                     ARRAY_SIZE(drm_scaling_mode_enum_list));
 765         for (i = 0; i < ARRAY_SIZE(drm_scaling_mode_enum_list); i++)
 766                 drm_property_add_enum(scaling_mode, i,
 767                                       drm_scaling_mode_enum_list[i].type,
 768                                       drm_scaling_mode_enum_list[i].name);
 769
 770         dev->mode_config.scaling_mode_property = scaling_mode;
 771
 772         return 0;
 773 }
 774 EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
 775
 776 /**
 777  * drm_mode_create_dithering_property - create dithering property
 778  * @dev: DRM device
 779  *
 780  * Called by a driver the first time it's needed, must be attached to desired
 781  * connectors.
 782  */
 783 int drm_mode_create_dithering_property(struct drm_device *dev)
 784 {
 785         struct drm_property *dithering_mode;
 786         int i;
 787
 788         if (dev->mode_config.dithering_mode_property)
 789                 return 0;
 790
 791         dithering_mode =
 792                 drm_property_create(dev, DRM_MODE_PROP_ENUM, "dithering",
 793                                     ARRAY_SIZE(drm_dithering_mode_enum_list));
 794         for (i = 0; i < ARRAY_SIZE(drm_dithering_mode_enum_list); i++)
 795                 drm_property_add_enum(dithering_mode, i,
 796                                       drm_dithering_mode_enum_list[i].type,
 797                                       drm_dithering_mode_enum_list[i].name);
 798         dev->mode_config.dithering_mode_property = dithering_mode;
 799
 800         return 0;
 801 }
 802 EXPORT_SYMBOL(drm_mode_create_dithering_property);
 803
 804 /**
 805  * drm_mode_config_init - initialize DRM mode_configuration structure
 806  * @dev: DRM device
 807  *
 808  * LOCKING:
 809  * None, should happen single threaded at init time.
 810  *
 811  * Initialize @dev's mode_config structure, used for tracking the graphics
 812  * configuration of @dev.
 813  */
 814 void drm_mode_config_init(struct drm_device *dev)
 815 {
 816         mutex_init(&dev->mode_config.mutex);
 817         mutex_init(&dev->mode_config.idr_mutex);
 818         INIT_LIST_HEAD(&dev->mode_config.fb_list);
 819         INIT_LIST_HEAD(&dev->mode_config.fb_kernel_list);
 820         INIT_LIST_HEAD(&dev->mode_config.crtc_list);
 821         INIT_LIST_HEAD(&dev->mode_config.connector_list);
 822         INIT_LIST_HEAD(&dev->mode_config.encoder_list);
 823         INIT_LIST_HEAD(&dev->mode_config.property_list);
 824         INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
 825         idr_init(&dev->mode_config.crtc_idr);
 826
 827         mutex_lock(&dev->mode_config.mutex);
 828         drm_mode_create_standard_connector_properties(dev);
 829         mutex_unlock(&dev->mode_config.mutex);
 830
 831         /* Just to be sure */
 832         dev->mode_config.num_fb = 0;
 833         dev->mode_config.num_connector = 0;
 834         dev->mode_config.num_crtc = 0;
 835         dev->mode_config.num_encoder = 0;
 836 }
 837 EXPORT_SYMBOL(drm_mode_config_init);
 838
 839 int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
 840 {
 841         uint32_t total_objects = 0;
 842
 843         total_objects += dev->mode_config.num_crtc;
 844         total_objects += dev->mode_config.num_connector;
 845         total_objects += dev->mode_config.num_encoder;
 846
 847         if (total_objects == 0)
 848                 return -EINVAL;
 849
 850         group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
 851         if (!group->id_list)
 852                 return -ENOMEM;
 853
 854         group->num_crtcs = 0;
 855         group->num_connectors = 0;
 856         group->num_encoders = 0;
 857         return 0;
 858 }
 859
 860 int drm_mode_group_init_legacy_group(struct drm_device *dev,
 861                                      struct drm_mode_group *group)
 862 {
 863         struct drm_crtc *crtc;
 864         struct drm_encoder *encoder;
 865         struct drm_connector *connector;
 866         int ret;
 867
 868         if ((ret = drm_mode_group_init(dev, group)))
 869                 return ret;
 870
 871         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
 872                 group->id_list[group->num_crtcs++] = crtc->base.id;
 873
 874         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
 875                 group->id_list[group->num_crtcs + group->num_encoders++] =
 876                 encoder->base.id;
 877
 878         list_for_each_entry(connector, &dev->mode_config.connector_list, head)
 879                 group->id_list[group->num_crtcs + group->num_encoders +
 880                                group->num_connectors++] = connector->base.id;
 881
 882         return 0;
 883 }
 884
 885 /**
 886  * drm_mode_config_cleanup - free up DRM mode_config info
 887  * @dev: DRM device
 888  *
 889  * LOCKING:
 890  * Caller must hold mode config lock.
 891  *
 892  * Free up all the connectors and CRTCs associated with this DRM device, then
 893  * free up the framebuffers and associated buffer objects.
 894  *
 895  * FIXME: cleanup any dangling user buffer objects too
 896  */
 897 void drm_mode_config_cleanup(struct drm_device *dev)
 898 {
 899         struct drm_connector *connector, *ot;
 900         struct drm_crtc *crtc, *ct;
 901         struct drm_encoder *encoder, *enct;
 902         struct drm_framebuffer *fb, *fbt;
 903         struct drm_property *property, *pt;
 904
 905         list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
 906                                  head) {
 907                 encoder->funcs->destroy(encoder);
 908         }
 909
 910         list_for_each_entry_safe(connector, ot,
 911                                  &dev->mode_config.connector_list, head) {
 912                 connector->funcs->destroy(connector);
 913         }
 914
 915         list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
 916                                  head) {
 917                 drm_property_destroy(dev, property);
 918         }
 919
 920         list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
 921                 fb->funcs->destroy(fb);
 922         }
 923
 924         list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
 925                 crtc->funcs->destroy(crtc);
 926         }
 927
 928 }
 929 EXPORT_SYMBOL(drm_mode_config_cleanup);
 930
 931 /**
 932  * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
 933  * @out: drm_mode_modeinfo struct to return to the user
 934  * @in: drm_display_mode to use
 935  *
 936  * LOCKING:
 937  * None.
 938  *
 939  * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
 940  * the user.
 941  */
 942 void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
 943                                struct drm_display_mode *in)
 944 {
 945         out->clock = in->clock;
 946         out->hdisplay = in->hdisplay;
 947         out->hsync_start = in->hsync_start;
 948         out->hsync_end = in->hsync_end;
 949         out->htotal = in->htotal;
 950         out->hskew = in->hskew;
 951         out->vdisplay = in->vdisplay;
 952         out->vsync_start = in->vsync_start;
 953         out->vsync_end = in->vsync_end;
 954         out->vtotal = in->vtotal;
 955         out->vscan = in->vscan;
 956         out->vrefresh = in->vrefresh;
 957         out->flags = in->flags;
 958         out->type = in->type;
 959         strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
 960         out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
 961 }
 962
 963 /**
 964  * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
 965  * @out: drm_display_mode to return to the user
 966  * @in: drm_mode_modeinfo to use
 967  *
 968  * LOCKING:
 969  * None.
 970  *
 971  * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
 972  * the caller.
 973  */
 974 void drm_crtc_convert_umode(struct drm_display_mode *out,
 975                             struct drm_mode_modeinfo *in)
 976 {
 977         out->clock = in->clock;
 978         out->hdisplay = in->hdisplay;
 979         out->hsync_start = in->hsync_start;
 980         out->hsync_end = in->hsync_end;
 981         out->htotal = in->htotal;
 982         out->hskew = in->hskew;
 983         out->vdisplay = in->vdisplay;
 984         out->vsync_start = in->vsync_start;
 985         out->vsync_end = in->vsync_end;
 986         out->vtotal = in->vtotal;
 987         out->vscan = in->vscan;
 988         out->vrefresh = in->vrefresh;
 989         out->flags = in->flags;
 990         out->type = in->type;
 991         strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
 992         out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
 993 }
 994
 995 /**
 996  * drm_mode_getresources - get graphics configuration
 997  * @inode: inode from the ioctl
 998  * @filp: file * from the ioctl
 999  * @cmd: cmd from ioctl
1000  * @arg: arg from ioctl
1001  *
1002  * LOCKING:
1003  * Takes mode config lock.
1004  *
1005  * Construct a set of configuration description structures and return
1006  * them to the user, including CRTC, connector and framebuffer configuration.
1007  *
1008  * Called by the user via ioctl.
1009  *
1010  * RETURNS:
1011  * Zero on success, errno on failure.
1012  */
1013 int drm_mode_getresources(struct drm_device *dev, void *data,
1014                           struct drm_file *file_priv)
1015 {
1016         struct drm_mode_card_res *card_res = data;
1017         struct list_head *lh;
1018         struct drm_framebuffer *fb;
1019         struct drm_connector *connector;
1020         struct drm_crtc *crtc;
1021         struct drm_encoder *encoder;
1022         int ret = 0;
1023         int connector_count = 0;
1024         int crtc_count = 0;
1025         int fb_count = 0;
1026         int encoder_count = 0;
1027         int copied = 0, i;
1028         uint32_t __user *fb_id;
1029         uint32_t __user *crtc_id;
1030         uint32_t __user *connector_id;
1031         uint32_t __user *encoder_id;
1032         struct drm_mode_group *mode_group;
1033
1034         mutex_lock(&dev->mode_config.mutex);
1035
1036         /*
1037          * For the non-control nodes we need to limit the list of resources
1038          * by IDs in the group list for this node
1039          */
1040         list_for_each(lh, &file_priv->fbs)
1041                 fb_count++;
1042
1043         mode_group = &file_priv->master->minor->mode_group;
1044         if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1045
1046                 list_for_each(lh, &dev->mode_config.crtc_list)
1047                         crtc_count++;
1048
1049                 list_for_each(lh, &dev->mode_config.connector_list)
1050                         connector_count++;
1051
1052                 list_for_each(lh, &dev->mode_config.encoder_list)
1053                         encoder_count++;
1054         } else {
1055
1056                 crtc_count = mode_group->num_crtcs;
1057                 connector_count = mode_group->num_connectors;
1058                 encoder_count = mode_group->num_encoders;
1059         }
1060
1061         card_res->max_height = dev->mode_config.max_height;
1062         card_res->min_height = dev->mode_config.min_height;
1063         card_res->max_width = dev->mode_config.max_width;
1064         card_res->min_width = dev->mode_config.min_width;
1065
1066         /* handle this in 4 parts */
1067         /* FBs */
1068         if (card_res->count_fbs >= fb_count) {
1069                 copied = 0;
1070                 fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
1071                 list_for_each_entry(fb, &file_priv->fbs, head) {
1072                         if (put_user(fb->base.id, fb_id + copied)) {
1073                                 ret = -EFAULT;
1074                                 goto out;
1075                         }
1076                         copied++;
1077                 }
1078         }
1079         card_res->count_fbs = fb_count;
1080
1081         /* CRTCs */
1082         if (card_res->count_crtcs >= crtc_count) {
1083                 copied = 0;
1084                 crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
1085                 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1086                         list_for_each_entry(crtc, &dev->mode_config.crtc_list,
1087                                             head) {
1088                                 DRM_DEBUG_KMS("CRTC ID is %d\n", crtc->base.id);
1089                                 if (put_user(crtc->base.id, crtc_id + copied)) {
1090                                         ret = -EFAULT;
1091                                         goto out;
1092                                 }
1093                                 copied++;
1094                         }
1095                 } else {
1096                         for (i = 0; i < mode_group->num_crtcs; i++) {
1097                                 if (put_user(mode_group->id_list[i],
1098                                              crtc_id + copied)) {
1099                                         ret = -EFAULT;
1100                                         goto out;
1101                                 }
1102                                 copied++;
1103                         }
1104                 }
1105         }
1106         card_res->count_crtcs = crtc_count;
1107
1108         /* Encoders */
1109         if (card_res->count_encoders >= encoder_count) {
1110                 copied = 0;
1111                 encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
1112                 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1113                         list_for_each_entry(encoder,
1114                                             &dev->mode_config.encoder_list,
1115                                             head) {
1116                                 DRM_DEBUG_KMS("ENCODER ID is %d\n",
1117                                           encoder->base.id);
1118                                 if (put_user(encoder->base.id, encoder_id +
1119                                              copied)) {
1120                                         ret = -EFAULT;
1121                                         goto out;
1122                                 }
1123                                 copied++;
1124                         }
1125                 } else {
1126                         for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
1127                                 if (put_user(mode_group->id_list[i],
1128                                              encoder_id + copied)) {
1129                                         ret = -EFAULT;
1130                                         goto out;
1131                                 }
1132                                 copied++;
1133                         }
1134
1135                 }
1136         }
1137         card_res->count_encoders = encoder_count;
1138
1139         /* Connectors */
1140         if (card_res->count_connectors >= connector_count) {
1141                 copied = 0;
1142                 connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
1143                 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1144                         list_for_each_entry(connector,
1145                                             &dev->mode_config.connector_list,
1146                                             head) {
1147                                 DRM_DEBUG_KMS("CONNECTOR ID is %d\n",
1148                                           connector->base.id);
1149                                 if (put_user(connector->base.id,
1150                                              connector_id + copied)) {
1151                                         ret = -EFAULT;
1152                                         goto out;
1153                                 }
1154                                 copied++;
1155                         }
1156                 } else {
1157                         int start = mode_group->num_crtcs +
1158                                 mode_group->num_encoders;
1159                         for (i = start; i < start + mode_group->num_connectors; i++) {
1160                                 if (put_user(mode_group->id_list[i],
1161                                              connector_id + copied)) {
1162                                         ret = -EFAULT;
1163                                         goto out;
1164                                 }
1165                                 copied++;
1166                         }
1167                 }
1168         }
1169         card_res->count_connectors = connector_count;
1170
1171         DRM_DEBUG_KMS("Counted %d %d %d\n", card_res->count_crtcs,
1172                   card_res->count_connectors, card_res->count_encoders);
1173
1174 out:
1175         mutex_unlock(&dev->mode_config.mutex);
1176         return ret;
1177 }
1178
1179 /**
1180  * drm_mode_getcrtc - get CRTC configuration
1181  * @inode: inode from the ioctl
1182  * @filp: file * from the ioctl
1183  * @cmd: cmd from ioctl
1184  * @arg: arg from ioctl
1185  *
1186  * LOCKING:
1187  * Caller? (FIXME)
1188  *
1189  * Construct a CRTC configuration structure to return to the user.
1190  *
1191  * Called by the user via ioctl.
1192  *
1193  * RETURNS:
1194  * Zero on success, errno on failure.
1195  */
1196 int drm_mode_getcrtc(struct drm_device *dev,
1197                      void *data, struct drm_file *file_priv)
1198 {
1199         struct drm_mode_crtc *crtc_resp = data;
1200         struct drm_crtc *crtc;
1201         struct drm_mode_object *obj;
1202         int ret = 0;
1203
1204         mutex_lock(&dev->mode_config.mutex);
1205
1206         obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
1207                                    DRM_MODE_OBJECT_CRTC);
1208         if (!obj) {
1209                 ret = -EINVAL;
1210                 goto out;
1211         }
1212         crtc = obj_to_crtc(obj);
1213
1214         crtc_resp->x = crtc->x;
1215         crtc_resp->y = crtc->y;
1216         crtc_resp->gamma_size = crtc->gamma_size;
1217         if (crtc->fb)
1218                 crtc_resp->fb_id = crtc->fb->base.id;
1219         else
1220                 crtc_resp->fb_id = 0;
1221
1222         if (crtc->enabled) {
1223
1224                 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
1225                 crtc_resp->mode_valid = 1;
1226
1227         } else {
1228                 crtc_resp->mode_valid = 0;
1229         }
1230
1231 out:
1232         mutex_unlock(&dev->mode_config.mutex);
1233         return ret;
1234 }
1235
1236 /**
1237  * drm_mode_getconnector - get connector configuration
1238  * @inode: inode from the ioctl
1239  * @filp: file * from the ioctl
1240  * @cmd: cmd from ioctl
1241  * @arg: arg from ioctl
1242  *
1243  * LOCKING:
1244  * Caller? (FIXME)
1245  *
1246  * Construct a connector configuration structure to return to the user.
1247  *
1248  * Called by the user via ioctl.
1249  *
1250  * RETURNS:
1251  * Zero on success, errno on failure.
1252  */
1253 int drm_mode_getconnector(struct drm_device *dev, void *data,
1254                           struct drm_file *file_priv)
1255 {
1256         struct drm_mode_get_connector *out_resp = data;
1257         struct drm_mode_object *obj;
1258         struct drm_connector *connector;
1259         struct drm_display_mode *mode;
1260         int mode_count = 0;
1261         int props_count = 0;
1262         int encoders_count = 0;
1263         int ret = 0;
1264         int copied = 0;
1265         int i;
1266         struct drm_mode_modeinfo u_mode;
1267         struct drm_mode_modeinfo __user *mode_ptr;
1268         uint32_t __user *prop_ptr;
1269         uint64_t __user *prop_values;
1270         uint32_t __user *encoder_ptr;
1271
1272         memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
1273
1274         DRM_DEBUG_KMS("connector id %d:\n", out_resp->connector_id);
1275
1276         mutex_lock(&dev->mode_config.mutex);
1277
1278         obj = drm_mode_object_find(dev, out_resp->connector_id,
1279                                    DRM_MODE_OBJECT_CONNECTOR);
1280         if (!obj) {
1281                 ret = -EINVAL;
1282                 goto out;
1283         }
1284         connector = obj_to_connector(obj);
1285
1286         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1287                 if (connector->property_ids[i] != 0) {
1288                         props_count++;
1289                 }
1290         }
1291
1292         for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1293                 if (connector->encoder_ids[i] != 0) {
1294                         encoders_count++;
1295                 }
1296         }
1297
1298         if (out_resp->count_modes == 0) {
1299                 connector->funcs->fill_modes(connector,
1300                                              dev->mode_config.max_width,
1301                                              dev->mode_config.max_height);
1302         }
1303
1304         /* delayed so we get modes regardless of pre-fill_modes state */
1305         list_for_each_entry(mode, &connector->modes, head)
1306                 mode_count++;
1307
1308         out_resp->connector_id = connector->base.id;
1309         out_resp->connector_type = connector->connector_type;
1310         out_resp->connector_type_id = connector->connector_type_id;
1311         out_resp->mm_width = connector->display_info.width_mm;
1312         out_resp->mm_height = connector->display_info.height_mm;
1313         out_resp->subpixel = connector->display_info.subpixel_order;
1314         out_resp->connection = connector->status;
1315         if (connector->encoder)
1316                 out_resp->encoder_id = connector->encoder->base.id;
1317         else
1318                 out_resp->encoder_id = 0;
1319
1320         /*
1321          * This ioctl is called twice, once to determine how much space is
1322          * needed, and the 2nd time to fill it.
1323          */
1324         if ((out_resp->count_modes >= mode_count) && mode_count) {
1325                 copied = 0;
1326                 mode_ptr = (struct drm_mode_modeinfo *)(unsigned long)out_resp->modes_ptr;
1327                 list_for_each_entry(mode, &connector->modes, head) {
1328                         drm_crtc_convert_to_umode(&u_mode, mode);
1329                         if (copy_to_user(mode_ptr + copied,
1330                                          &u_mode, sizeof(u_mode))) {
1331                                 ret = -EFAULT;
1332                                 goto out;
1333                         }
1334                         copied++;
1335                 }
1336         }
1337         out_resp->count_modes = mode_count;
1338
1339         if ((out_resp->count_props >= props_count) && props_count) {
1340                 copied = 0;
1341                 prop_ptr = (uint32_t *)(unsigned long)(out_resp->props_ptr);
1342                 prop_values = (uint64_t *)(unsigned long)(out_resp->prop_values_ptr);
1343                 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1344                         if (connector->property_ids[i] != 0) {
1345                                 if (put_user(connector->property_ids[i],
1346                                              prop_ptr + copied)) {
1347                                         ret = -EFAULT;
1348                                         goto out;
1349                                 }
1350
1351                                 if (put_user(connector->property_values[i],
1352                                              prop_values + copied)) {
1353                                         ret = -EFAULT;
1354                                         goto out;
1355                                 }
1356                                 copied++;
1357                         }
1358                 }
1359         }
1360         out_resp->count_props = props_count;
1361
1362         if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
1363                 copied = 0;
1364                 encoder_ptr = (uint32_t *)(unsigned long)(out_resp->encoders_ptr);
1365                 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1366                         if (connector->encoder_ids[i] != 0) {
1367                                 if (put_user(connector->encoder_ids[i],
1368                                              encoder_ptr + copied)) {
1369                                         ret = -EFAULT;
1370                                         goto out;
1371                                 }
1372                                 copied++;
1373                         }
1374                 }
1375         }
1376         out_resp->count_encoders = encoders_count;
1377
1378 out:
1379         mutex_unlock(&dev->mode_config.mutex);
1380         return ret;
1381 }
1382
1383 int drm_mode_getencoder(struct drm_device *dev, void *data,
1384                         struct drm_file *file_priv)
1385 {
1386         struct drm_mode_get_encoder *enc_resp = data;
1387         struct drm_mode_object *obj;
1388         struct drm_encoder *encoder;
1389         int ret = 0;
1390
1391         mutex_lock(&dev->mode_config.mutex);
1392         obj = drm_mode_object_find(dev, enc_resp->encoder_id,
1393                                    DRM_MODE_OBJECT_ENCODER);
1394         if (!obj) {
1395                 ret = -EINVAL;
1396                 goto out;
1397         }
1398         encoder = obj_to_encoder(obj);
1399
1400         if (encoder->crtc)
1401                 enc_resp->crtc_id = encoder->crtc->base.id;
1402         else
1403                 enc_resp->crtc_id = 0;
1404         enc_resp->encoder_type = encoder->encoder_type;
1405         enc_resp->encoder_id = encoder->base.id;
1406         enc_resp->possible_crtcs = encoder->possible_crtcs;
1407         enc_resp->possible_clones = encoder->possible_clones;
1408
1409 out:
1410         mutex_unlock(&dev->mode_config.mutex);
1411         return ret;
1412 }
1413
1414 /**
1415  * drm_mode_setcrtc - set CRTC configuration
1416  * @inode: inode from the ioctl
1417  * @filp: file * from the ioctl
1418  * @cmd: cmd from ioctl
1419  * @arg: arg from ioctl
1420  *
1421  * LOCKING:
1422  * Caller? (FIXME)
1423  *
1424  * Build a new CRTC configuration based on user request.
1425  *
1426  * Called by the user via ioctl.
1427  *
1428  * RETURNS:
1429  * Zero on success, errno on failure.
1430  */
1431 int drm_mode_setcrtc(struct drm_device *dev, void *data,
1432                      struct drm_file *file_priv)
1433 {
1434         struct drm_mode_config *config = &dev->mode_config;
1435         struct drm_mode_crtc *crtc_req = data;
1436         struct drm_mode_object *obj;
1437         struct drm_crtc *crtc, *crtcfb;
1438         struct drm_connector **connector_set = NULL, *connector;
1439         struct drm_framebuffer *fb = NULL;
1440         struct drm_display_mode *mode = NULL;
1441         struct drm_mode_set set;
1442         uint32_t __user *set_connectors_ptr;
1443         int ret = 0;
1444         int i;
1445
1446         mutex_lock(&dev->mode_config.mutex);
1447         obj = drm_mode_object_find(dev, crtc_req->crtc_id,
1448                                    DRM_MODE_OBJECT_CRTC);
1449         if (!obj) {
1450                 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id);
1451                 ret = -EINVAL;
1452                 goto out;
1453         }
1454         crtc = obj_to_crtc(obj);
1455
1456         if (crtc_req->mode_valid) {
1457                 /* If we have a mode we need a framebuffer. */
1458                 /* If we pass -1, set the mode with the currently bound fb */
1459                 if (crtc_req->fb_id == -1) {
1460                         list_for_each_entry(crtcfb,
1461                                             &dev->mode_config.crtc_list, head) {
1462                                 if (crtcfb == crtc) {
1463                                         DRM_DEBUG_KMS("Using current fb for "
1464                                                         "setmode\n");
1465                                         fb = crtc->fb;
1466                                 }
1467                         }
1468                 } else {
1469                         obj = drm_mode_object_find(dev, crtc_req->fb_id,
1470                                                    DRM_MODE_OBJECT_FB);
1471                         if (!obj) {
1472                                 DRM_DEBUG_KMS("Unknown FB ID%d\n",
1473                                                 crtc_req->fb_id);
1474                                 ret = -EINVAL;
1475                                 goto out;
1476                         }
1477                         fb = obj_to_fb(obj);
1478                 }
1479
1480                 mode = drm_mode_create(dev);
1481                 drm_crtc_convert_umode(mode, &crtc_req->mode);
1482                 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
1483         }
1484
1485         if (crtc_req->count_connectors == 0 && mode) {
1486                 DRM_DEBUG_KMS("Count connectors is 0 but mode set\n");
1487                 ret = -EINVAL;
1488                 goto out;
1489         }
1490
1491         if (crtc_req->count_connectors > 0 && (!mode || !fb)) {
1492                 DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n",
1493                           crtc_req->count_connectors);
1494                 ret = -EINVAL;
1495                 goto out;
1496         }
1497
1498         if (crtc_req->count_connectors > 0) {
1499                 u32 out_id;
1500
1501                 /* Avoid unbounded kernel memory allocation */
1502                 if (crtc_req->count_connectors > config->num_connector) {
1503                         ret = -EINVAL;
1504                         goto out;
1505                 }
1506
1507                 connector_set = kmalloc(crtc_req->count_connectors *
1508                                         sizeof(struct drm_connector *),
1509                                         GFP_KERNEL);
1510                 if (!connector_set) {
1511                         ret = -ENOMEM;
1512                         goto out;
1513                 }
1514
1515                 for (i = 0; i < crtc_req->count_connectors; i++) {
1516                         set_connectors_ptr = (uint32_t *)(unsigned long)crtc_req->set_connectors_ptr;
1517                         if (get_user(out_id, &set_connectors_ptr[i])) {
1518                                 ret = -EFAULT;
1519                                 goto out;
1520                         }
1521
1522                         obj = drm_mode_object_find(dev, out_id,
1523                                                    DRM_MODE_OBJECT_CONNECTOR);
1524                         if (!obj) {
1525                                 DRM_DEBUG_KMS("Connector id %d unknown\n",
1526                                                 out_id);
1527                                 ret = -EINVAL;
1528                                 goto out;
1529                         }
1530                         connector = obj_to_connector(obj);
1531
1532                         connector_set[i] = connector;
1533                 }
1534         }
1535
1536         set.crtc = crtc;
1537         set.x = crtc_req->x;
1538         set.y = crtc_req->y;
1539         set.mode = mode;
1540         set.connectors = connector_set;
1541         set.num_connectors = crtc_req->count_connectors;
1542         set.fb = fb;
1543         ret = crtc->funcs->set_config(&set);
1544
1545 out:
1546         kfree(connector_set);
1547         mutex_unlock(&dev->mode_config.mutex);
1548         return ret;
1549 }
1550
1551 int drm_mode_cursor_ioctl(struct drm_device *dev,
1552                         void *data, struct drm_file *file_priv)
1553 {
1554         struct drm_mode_cursor *req = data;
1555         struct drm_mode_object *obj;
1556         struct drm_crtc *crtc;
1557         int ret = 0;
1558
1559         DRM_DEBUG_KMS("\n");
1560
1561         if (!req->flags) {
1562                 DRM_ERROR("no operation set\n");
1563                 return -EINVAL;
1564         }
1565
1566         mutex_lock(&dev->mode_config.mutex);
1567         obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
1568         if (!obj) {
1569                 DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id);
1570                 ret = -EINVAL;
1571                 goto out;
1572         }
1573         crtc = obj_to_crtc(obj);
1574
1575         if (req->flags & DRM_MODE_CURSOR_BO) {
1576                 if (!crtc->funcs->cursor_set) {
1577                         DRM_ERROR("crtc does not support cursor\n");
1578                         ret = -ENXIO;
1579                         goto out;
1580                 }
1581                 /* Turns off the cursor if handle is 0 */
1582                 ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
1583                                               req->width, req->height);
1584         }
1585
1586         if (req->flags & DRM_MODE_CURSOR_MOVE) {
1587                 if (crtc->funcs->cursor_move) {
1588                         ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
1589                 } else {
1590                         DRM_ERROR("crtc does not support cursor\n");
1591                         ret = -EFAULT;
1592                         goto out;
1593                 }
1594         }
1595 out:
1596         mutex_unlock(&dev->mode_config.mutex);
1597         return ret;
1598 }
1599
1600 /**
1601  * drm_mode_addfb - add an FB to the graphics configuration
1602  * @inode: inode from the ioctl
1603  * @filp: file * from the ioctl
1604  * @cmd: cmd from ioctl
1605  * @arg: arg from ioctl
1606  *
1607  * LOCKING:
1608  * Takes mode config lock.
1609  *
1610  * Add a new FB to the specified CRTC, given a user request.
1611  *
1612  * Called by the user via ioctl.
1613  *
1614  * RETURNS:
1615  * Zero on success, errno on failure.
1616  */
1617 int drm_mode_addfb(struct drm_device *dev,
1618                    void *data, struct drm_file *file_priv)
1619 {
1620         struct drm_mode_fb_cmd *r = data;
1621         struct drm_mode_config *config = &dev->mode_config;
1622         struct drm_framebuffer *fb;
1623         int ret = 0;
1624
1625         if ((config->min_width > r->width) || (r->width > config->max_width)) {
1626                 DRM_ERROR("mode new framebuffer width not within limits\n");
1627                 return -EINVAL;
1628         }
1629         if ((config->min_height > r->height) || (r->height > config->max_height)) {
1630                 DRM_ERROR("mode new framebuffer height not within limits\n");
1631                 return -EINVAL;
1632         }
1633
1634         mutex_lock(&dev->mode_config.mutex);
1635
1636         /* TODO check buffer is sufficently large */
1637         /* TODO setup destructor callback */
1638
1639         fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
1640         if (!fb) {
1641                 DRM_ERROR("could not create framebuffer\n");
1642                 ret = -EINVAL;
1643                 goto out;
1644         }
1645
1646         r->fb_id = fb->base.id;
1647         list_add(&fb->filp_head, &file_priv->fbs);
1648
1649 out:
1650         mutex_unlock(&dev->mode_config.mutex);
1651         return ret;
1652 }
1653
1654 /**
1655  * drm_mode_rmfb - remove an FB from the configuration
1656  * @inode: inode from the ioctl
1657  * @filp: file * from the ioctl
1658  * @cmd: cmd from ioctl
1659  * @arg: arg from ioctl
1660  *
1661  * LOCKING:
1662  * Takes mode config lock.
1663  *
1664  * Remove the FB specified by the user.
1665  *
1666  * Called by the user via ioctl.
1667  *
1668  * RETURNS:
1669  * Zero on success, errno on failure.
1670  */
1671 int drm_mode_rmfb(struct drm_device *dev,
1672                    void *data, struct drm_file *file_priv)
1673 {
1674         struct drm_mode_object *obj;
1675         struct drm_framebuffer *fb = NULL;
1676         struct drm_framebuffer *fbl = NULL;
1677         uint32_t *id = data;
1678         int ret = 0;
1679         int found = 0;
1680
1681         mutex_lock(&dev->mode_config.mutex);
1682         obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB);
1683         /* TODO check that we realy get a framebuffer back. */
1684         if (!obj) {
1685                 DRM_ERROR("mode invalid framebuffer id\n");
1686                 ret = -EINVAL;
1687                 goto out;
1688         }
1689         fb = obj_to_fb(obj);
1690
1691         list_for_each_entry(fbl, &file_priv->fbs, filp_head)
1692                 if (fb == fbl)
1693                         found = 1;
1694
1695         if (!found) {
1696                 DRM_ERROR("tried to remove a fb that we didn't own\n");
1697                 ret = -EINVAL;
1698                 goto out;
1699         }
1700
1701         /* TODO release all crtc connected to the framebuffer */
1702         /* TODO unhock the destructor from the buffer object */
1703
1704         list_del(&fb->filp_head);
1705         fb->funcs->destroy(fb);
1706
1707 out:
1708         mutex_unlock(&dev->mode_config.mutex);
1709         return ret;
1710 }
1711
1712 /**
1713  * drm_mode_getfb - get FB info
1714  * @inode: inode from the ioctl
1715  * @filp: file * from the ioctl
1716  * @cmd: cmd from ioctl
1717  * @arg: arg from ioctl
1718  *
1719  * LOCKING:
1720  * Caller? (FIXME)
1721  *
1722  * Lookup the FB given its ID and return info about it.
1723  *
1724  * Called by the user via ioctl.
1725  *
1726  * RETURNS:
1727  * Zero on success, errno on failure.
1728  */
1729 int drm_mode_getfb(struct drm_device *dev,
1730                    void *data, struct drm_file *file_priv)
1731 {
1732         struct drm_mode_fb_cmd *r = data;
1733         struct drm_mode_object *obj;
1734         struct drm_framebuffer *fb;
1735         int ret = 0;
1736
1737         mutex_lock(&dev->mode_config.mutex);
1738         obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
1739         if (!obj) {
1740                 DRM_ERROR("invalid framebuffer id\n");
1741                 ret = -EINVAL;
1742                 goto out;
1743         }
1744         fb = obj_to_fb(obj);
1745
1746         r->height = fb->height;
1747         r->width = fb->width;
1748         r->depth = fb->depth;
1749         r->bpp = fb->bits_per_pixel;
1750         r->pitch = fb->pitch;
1751         fb->funcs->create_handle(fb, file_priv, &r->handle);
1752
1753 out:
1754         mutex_unlock(&dev->mode_config.mutex);
1755         return ret;
1756 }
1757
1758 /**
1759  * drm_fb_release - remove and free the FBs on this file
1760  * @filp: file * from the ioctl
1761  *
1762  * LOCKING:
1763  * Takes mode config lock.
1764  *
1765  * Destroy all the FBs associated with @filp.
1766  *
1767  * Called by the user via ioctl.
1768  *
1769  * RETURNS:
1770  * Zero on success, errno on failure.
1771  */
1772 void drm_fb_release(struct drm_file *priv)
1773 {
1774         struct drm_device *dev = priv->minor->dev;
1775         struct drm_framebuffer *fb, *tfb;
1776
1777         mutex_lock(&dev->mode_config.mutex);
1778         list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
1779                 list_del(&fb->filp_head);
1780                 fb->funcs->destroy(fb);
1781         }
1782         mutex_unlock(&dev->mode_config.mutex);
1783 }
1784
1785 /**
1786  * drm_mode_attachmode - add a mode to the user mode list
1787  * @dev: DRM device
1788  * @connector: connector to add the mode to
1789  * @mode: mode to add
1790  *
1791  * Add @mode to @connector's user mode list.
1792  */
1793 static int drm_mode_attachmode(struct drm_device *dev,
1794                                struct drm_connector *connector,
1795                                struct drm_display_mode *mode)
1796 {
1797         int ret = 0;
1798
1799         list_add_tail(&mode->head, &connector->user_modes);
1800         return ret;
1801 }
1802
1803 int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc,
1804                              struct drm_display_mode *mode)
1805 {
1806         struct drm_connector *connector;
1807         int ret = 0;
1808         struct drm_display_mode *dup_mode;
1809         int need_dup = 0;
1810         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1811                 if (!connector->encoder)
1812                         break;
1813                 if (connector->encoder->crtc == crtc) {
1814                         if (need_dup)
1815                                 dup_mode = drm_mode_duplicate(dev, mode);
1816                         else
1817                                 dup_mode = mode;
1818                         ret = drm_mode_attachmode(dev, connector, dup_mode);
1819                         if (ret)
1820                                 return ret;
1821                         need_dup = 1;
1822                 }
1823         }
1824         return 0;
1825 }
1826 EXPORT_SYMBOL(drm_mode_attachmode_crtc);
1827
1828 static int drm_mode_detachmode(struct drm_device *dev,
1829                                struct drm_connector *connector,
1830                                struct drm_display_mode *mode)
1831 {
1832         int found = 0;
1833         int ret = 0;
1834         struct drm_display_mode *match_mode, *t;
1835
1836         list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) {
1837                 if (drm_mode_equal(match_mode, mode)) {
1838                         list_del(&match_mode->head);
1839                         drm_mode_destroy(dev, match_mode);
1840                         found = 1;
1841                         break;
1842                 }
1843         }
1844
1845         if (!found)
1846                 ret = -EINVAL;
1847
1848         return ret;
1849 }
1850
1851 int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode)
1852 {
1853         struct drm_connector *connector;
1854
1855         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1856                 drm_mode_detachmode(dev, connector, mode);
1857         }
1858         return 0;
1859 }
1860 EXPORT_SYMBOL(drm_mode_detachmode_crtc);
1861
1862 /**
1863  * drm_fb_attachmode - Attach a user mode to an connector
1864  * @inode: inode from the ioctl
1865  * @filp: file * from the ioctl
1866  * @cmd: cmd from ioctl
1867  * @arg: arg from ioctl
1868  *
1869  * This attaches a user specified mode to an connector.
1870  * Called by the user via ioctl.
1871  *
1872  * RETURNS:
1873  * Zero on success, errno on failure.
1874  */
1875 int drm_mode_attachmode_ioctl(struct drm_device *dev,
1876                               void *data, struct drm_file *file_priv)
1877 {
1878         struct drm_mode_mode_cmd *mode_cmd = data;
1879         struct drm_connector *connector;
1880         struct drm_display_mode *mode;
1881         struct drm_mode_object *obj;
1882         struct drm_mode_modeinfo *umode = &mode_cmd->mode;
1883         int ret = 0;
1884
1885         mutex_lock(&dev->mode_config.mutex);
1886
1887         obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
1888         if (!obj) {
1889                 ret = -EINVAL;
1890                 goto out;
1891         }
1892         connector = obj_to_connector(obj);
1893
1894         mode = drm_mode_create(dev);
1895         if (!mode) {
1896                 ret = -ENOMEM;
1897                 goto out;
1898         }
1899
1900         drm_crtc_convert_umode(mode, umode);
1901
1902         ret = drm_mode_attachmode(dev, connector, mode);
1903 out:
1904         mutex_unlock(&dev->mode_config.mutex);
1905         return ret;
1906 }
1907
1908
1909 /**
1910  * drm_fb_detachmode - Detach a user specified mode from an connector
1911  * @inode: inode from the ioctl
1912  * @filp: file * from the ioctl
1913  * @cmd: cmd from ioctl
1914  * @arg: arg from ioctl
1915  *
1916  * Called by the user via ioctl.
1917  *
1918  * RETURNS:
1919  * Zero on success, errno on failure.
1920  */
1921 int drm_mode_detachmode_ioctl(struct drm_device *dev,
1922                               void *data, struct drm_file *file_priv)
1923 {
1924         struct drm_mode_object *obj;
1925         struct drm_mode_mode_cmd *mode_cmd = data;
1926         struct drm_connector *connector;
1927         struct drm_display_mode mode;
1928         struct drm_mode_modeinfo *umode = &mode_cmd->mode;
1929         int ret = 0;
1930
1931         mutex_lock(&dev->mode_config.mutex);
1932
1933         obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
1934         if (!obj) {
1935                 ret = -EINVAL;
1936                 goto out;
1937         }
1938         connector = obj_to_connector(obj);
1939
1940         drm_crtc_convert_umode(&mode, umode);
1941         ret = drm_mode_detachmode(dev, connector, &mode);
1942 out:
1943         mutex_unlock(&dev->mode_config.mutex);
1944         return ret;
1945 }
1946
1947 struct drm_property *drm_property_create(struct drm_device *dev, int flags,
1948                                          const char *name, int num_values)
1949 {
1950         struct drm_property *property = NULL;
1951
1952         property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
1953         if (!property)
1954                 return NULL;
1955
1956         if (num_values) {
1957                 property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
1958                 if (!property->values)
1959                         goto fail;
1960         }
1961
1962         drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
1963         property->flags = flags;
1964         property->num_values = num_values;
1965         INIT_LIST_HEAD(&property->enum_blob_list);
1966
1967         if (name)
1968                 strncpy(property->name, name, DRM_PROP_NAME_LEN);
1969
1970         list_add_tail(&property->head, &dev->mode_config.property_list);
1971         return property;
1972 fail:
1973         kfree(property);
1974         return NULL;
1975 }
1976 EXPORT_SYMBOL(drm_property_create);
1977
1978 int drm_property_add_enum(struct drm_property *property, int index,
1979                           uint64_t value, const char *name)
1980 {
1981         struct drm_property_enum *prop_enum;
1982
1983         if (!(property->flags & DRM_MODE_PROP_ENUM))
1984                 return -EINVAL;
1985
1986         if (!list_empty(&property->enum_blob_list)) {
1987                 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
1988                         if (prop_enum->value == value) {
1989                                 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
1990                                 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
1991                                 return 0;
1992                         }
1993                 }
1994         }
1995
1996         prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
1997         if (!prop_enum)
1998                 return -ENOMEM;
1999
2000         strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
2001         prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
2002         prop_enum->value = value;
2003
2004         property->values[index] = value;
2005         list_add_tail(&prop_enum->head, &property->enum_blob_list);
2006         return 0;
2007 }
2008 EXPORT_SYMBOL(drm_property_add_enum);
2009
2010 void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
2011 {
2012         struct drm_property_enum *prop_enum, *pt;
2013
2014         list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
2015                 list_del(&prop_enum->head);
2016                 kfree(prop_enum);
2017         }
2018
2019         if (property->num_values)
2020                 kfree(property->values);
2021         drm_mode_object_put(dev, &property->base);
2022         list_del(&property->head);
2023         kfree(property);
2024 }
2025 EXPORT_SYMBOL(drm_property_destroy);
2026
2027 int drm_connector_attach_property(struct drm_connector *connector,
2028                                struct drm_property *property, uint64_t init_val)
2029 {
2030         int i;
2031
2032         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2033                 if (connector->property_ids[i] == 0) {
2034                         connector->property_ids[i] = property->base.id;
2035                         connector->property_values[i] = init_val;
2036                         break;
2037                 }
2038         }
2039
2040         if (i == DRM_CONNECTOR_MAX_PROPERTY)
2041                 return -EINVAL;
2042         return 0;
2043 }
2044 EXPORT_SYMBOL(drm_connector_attach_property);
2045
2046 int drm_connector_property_set_value(struct drm_connector *connector,
2047                                   struct drm_property *property, uint64_t value)
2048 {
2049         int i;
2050
2051         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2052                 if (connector->property_ids[i] == property->base.id) {
2053                         connector->property_values[i] = value;
2054                         break;
2055                 }
2056         }
2057
2058         if (i == DRM_CONNECTOR_MAX_PROPERTY)
2059                 return -EINVAL;
2060         return 0;
2061 }
2062 EXPORT_SYMBOL(drm_connector_property_set_value);
2063
2064 int drm_connector_property_get_value(struct drm_connector *connector,
2065                                   struct drm_property *property, uint64_t *val)
2066 {
2067         int i;
2068
2069         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2070                 if (connector->property_ids[i] == property->base.id) {
2071                         *val = connector->property_values[i];
2072                         break;
2073                 }
2074         }
2075
2076         if (i == DRM_CONNECTOR_MAX_PROPERTY)
2077                 return -EINVAL;
2078         return 0;
2079 }
2080 EXPORT_SYMBOL(drm_connector_property_get_value);
2081
2082 int drm_mode_getproperty_ioctl(struct drm_device *dev,
2083                                void *data, struct drm_file *file_priv)
2084 {
2085         struct drm_mode_object *obj;
2086         struct drm_mode_get_property *out_resp = data;
2087         struct drm_property *property;
2088         int enum_count = 0;
2089         int blob_count = 0;
2090         int value_count = 0;
2091         int ret = 0, i;
2092         int copied;
2093         struct drm_property_enum *prop_enum;
2094         struct drm_mode_property_enum __user *enum_ptr;
2095         struct drm_property_blob *prop_blob;
2096         uint32_t *blob_id_ptr;
2097         uint64_t __user *values_ptr;
2098         uint32_t __user *blob_length_ptr;
2099
2100         mutex_lock(&dev->mode_config.mutex);
2101         obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2102         if (!obj) {
2103                 ret = -EINVAL;
2104                 goto done;
2105         }
2106         property = obj_to_property(obj);
2107
2108         if (property->flags & DRM_MODE_PROP_ENUM) {
2109                 list_for_each_entry(prop_enum, &property->enum_blob_list, head)
2110                         enum_count++;
2111         } else if (property->flags & DRM_MODE_PROP_BLOB) {
2112                 list_for_each_entry(prop_blob, &property->enum_blob_list, head)
2113                         blob_count++;
2114         }
2115
2116         value_count = property->num_values;
2117
2118         strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
2119         out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
2120         out_resp->flags = property->flags;
2121
2122         if ((out_resp->count_values >= value_count) && value_count) {
2123                 values_ptr = (uint64_t *)(unsigned long)out_resp->values_ptr;
2124                 for (i = 0; i < value_count; i++) {
2125                         if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
2126                                 ret = -EFAULT;
2127                                 goto done;
2128                         }
2129                 }
2130         }
2131         out_resp->count_values = value_count;
2132
2133         if (property->flags & DRM_MODE_PROP_ENUM) {
2134                 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
2135                         copied = 0;
2136                         enum_ptr = (struct drm_mode_property_enum *)(unsigned long)out_resp->enum_blob_ptr;
2137                         list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2138
2139                                 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
2140                                         ret = -EFAULT;
2141                                         goto done;
2142                                 }
2143
2144                                 if (copy_to_user(&enum_ptr[copied].name,
2145                                                  &prop_enum->name, DRM_PROP_NAME_LEN)) {
2146                                         ret = -EFAULT;
2147                                         goto done;
2148                                 }
2149                                 copied++;
2150                         }
2151                 }
2152                 out_resp->count_enum_blobs = enum_count;
2153         }
2154
2155         if (property->flags & DRM_MODE_PROP_BLOB) {
2156                 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
2157                         copied = 0;
2158                         blob_id_ptr = (uint32_t *)(unsigned long)out_resp->enum_blob_ptr;
2159                         blob_length_ptr = (uint32_t *)(unsigned long)out_resp->values_ptr;
2160
2161                         list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
2162                                 if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
2163                                         ret = -EFAULT;
2164                                         goto done;
2165                                 }
2166
2167                                 if (put_user(prop_blob->length, blob_length_ptr + copied)) {
2168                                         ret = -EFAULT;
2169                                         goto done;
2170                                 }
2171
2172                                 copied++;
2173                         }
2174                 }
2175                 out_resp->count_enum_blobs = blob_count;
2176         }
2177 done:
2178         mutex_unlock(&dev->mode_config.mutex);
2179         return ret;
2180 }
2181
2182 static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
2183                                                           void *data)
2184 {
2185         struct drm_property_blob *blob;
2186
2187         if (!length || !data)
2188                 return NULL;
2189
2190         blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
2191         if (!blob)
2192                 return NULL;
2193
2194         blob->data = (void *)((char *)blob + sizeof(struct drm_property_blob));
2195         blob->length = length;
2196
2197         memcpy(blob->data, data, length);
2198
2199         drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
2200
2201         list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
2202         return blob;
2203 }
2204
2205 static void drm_property_destroy_blob(struct drm_device *dev,
2206                                struct drm_property_blob *blob)
2207 {
2208         drm_mode_object_put(dev, &blob->base);
2209         list_del(&blob->head);
2210         kfree(blob);
2211 }
2212
2213 int drm_mode_getblob_ioctl(struct drm_device *dev,
2214                            void *data, struct drm_file *file_priv)
2215 {
2216         struct drm_mode_object *obj;
2217         struct drm_mode_get_blob *out_resp = data;
2218         struct drm_property_blob *blob;
2219         int ret = 0;
2220         void *blob_ptr;
2221
2222         mutex_lock(&dev->mode_config.mutex);
2223         obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
2224         if (!obj) {
2225                 ret = -EINVAL;
2226                 goto done;
2227         }
2228         blob = obj_to_blob(obj);
2229
2230         if (out_resp->length == blob->length) {
2231                 blob_ptr = (void *)(unsigned long)out_resp->data;
2232                 if (copy_to_user(blob_ptr, blob->data, blob->length)){
2233                         ret = -EFAULT;
2234                         goto done;
2235                 }
2236         }
2237         out_resp->length = blob->length;
2238
2239 done:
2240         mutex_unlock(&dev->mode_config.mutex);
2241         return ret;
2242 }
2243
2244 int drm_mode_connector_update_edid_property(struct drm_connector *connector,
2245                                             struct edid *edid)
2246 {
2247         struct drm_device *dev = connector->dev;
2248         int ret = 0;
2249
2250         if (connector->edid_blob_ptr)
2251                 drm_property_destroy_blob(dev, connector->edid_blob_ptr);
2252
2253         /* Delete edid, when there is none. */
2254         if (!edid) {
2255                 connector->edid_blob_ptr = NULL;
2256                 ret = drm_connector_property_set_value(connector, dev->mode_config.edid_property, 0);
2257                 return ret;
2258         }
2259
2260         connector->edid_blob_ptr = drm_property_create_blob(connector->dev, 128, edid);
2261
2262         ret = drm_connector_property_set_value(connector,
2263                                                dev->mode_config.edid_property,
2264                                                connector->edid_blob_ptr->base.id);
2265
2266         return ret;
2267 }
2268 EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
2269
2270 int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
2271                                        void *data, struct drm_file *file_priv)
2272 {
2273         struct drm_mode_connector_set_property *out_resp = data;
2274         struct drm_mode_object *obj;
2275         struct drm_property *property;
2276         struct drm_connector *connector;
2277         int ret = -EINVAL;
2278         int i;
2279
2280         mutex_lock(&dev->mode_config.mutex);
2281
2282         obj = drm_mode_object_find(dev, out_resp->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2283         if (!obj) {
2284                 goto out;
2285         }
2286         connector = obj_to_connector(obj);
2287
2288         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2289                 if (connector->property_ids[i] == out_resp->prop_id)
2290                         break;
2291         }
2292
2293         if (i == DRM_CONNECTOR_MAX_PROPERTY) {
2294                 goto out;
2295         }
2296
2297         obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2298         if (!obj) {
2299                 goto out;
2300         }
2301         property = obj_to_property(obj);
2302
2303         if (property->flags & DRM_MODE_PROP_IMMUTABLE)
2304                 goto out;
2305
2306         if (property->flags & DRM_MODE_PROP_RANGE) {
2307                 if (out_resp->value < property->values[0])
2308                         goto out;
2309
2310                 if (out_resp->value > property->values[1])
2311                         goto out;
2312         } else {
2313                 int found = 0;
2314                 for (i = 0; i < property->num_values; i++) {
2315                         if (property->values[i] == out_resp->value) {
2316                                 found = 1;
2317                                 break;
2318                         }
2319                 }
2320                 if (!found) {
2321                         goto out;
2322                 }
2323         }
2324
2325         /* Do DPMS ourselves */
2326         if (property == connector->dev->mode_config.dpms_property) {
2327                 if (connector->funcs->dpms)
2328                         (*connector->funcs->dpms)(connector, (int) out_resp->value);
2329                 ret = 0;
2330         } else if (connector->funcs->set_property)
2331                 ret = connector->funcs->set_property(connector, property, out_resp->value);
2332
2333         /* store the property value if succesful */
2334         if (!ret)
2335                 drm_connector_property_set_value(connector, property, out_resp->value);
2336 out:
2337         mutex_unlock(&dev->mode_config.mutex);
2338         return ret;
2339 }
2340
2341 int drm_mode_connector_attach_encoder(struct drm_connector *connector,
2342                                       struct drm_encoder *encoder)
2343 {
2344         int i;
2345
2346         for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
2347                 if (connector->encoder_ids[i] == 0) {
2348                         connector->encoder_ids[i] = encoder->base.id;
2349                         return 0;
2350                 }
2351         }
2352         return -ENOMEM;
2353 }
2354 EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
2355
2356 void drm_mode_connector_detach_encoder(struct drm_connector *connector,
2357                                     struct drm_encoder *encoder)
2358 {
2359         int i;
2360         for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
2361                 if (connector->encoder_ids[i] == encoder->base.id) {
2362                         connector->encoder_ids[i] = 0;
2363                         if (connector->encoder == encoder)
2364                                 connector->encoder = NULL;
2365                         break;
2366                 }
2367         }
2368 }
2369 EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
2370
2371 bool drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
2372                                   int gamma_size)
2373 {
2374         crtc->gamma_size = gamma_size;
2375
2376         crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
2377         if (!crtc->gamma_store) {
2378                 crtc->gamma_size = 0;
2379                 return false;
2380         }
2381
2382         return true;
2383 }
2384 EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
2385
2386 int drm_mode_gamma_set_ioctl(struct drm_device *dev,
2387                              void *data, struct drm_file *file_priv)
2388 {
2389         struct drm_mode_crtc_lut *crtc_lut = data;
2390         struct drm_mode_object *obj;
2391         struct drm_crtc *crtc;
2392         void *r_base, *g_base, *b_base;
2393         int size;
2394         int ret = 0;
2395
2396         mutex_lock(&dev->mode_config.mutex);
2397         obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
2398         if (!obj) {
2399                 ret = -EINVAL;
2400                 goto out;
2401         }
2402         crtc = obj_to_crtc(obj);
2403
2404         /* memcpy into gamma store */
2405         if (crtc_lut->gamma_size != crtc->gamma_size) {
2406                 ret = -EINVAL;
2407                 goto out;
2408         }
2409
2410         size = crtc_lut->gamma_size * (sizeof(uint16_t));
2411         r_base = crtc->gamma_store;
2412         if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
2413                 ret = -EFAULT;
2414                 goto out;
2415         }
2416
2417         g_base = r_base + size;
2418         if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
2419                 ret = -EFAULT;
2420                 goto out;
2421         }
2422
2423         b_base = g_base + size;
2424         if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
2425                 ret = -EFAULT;
2426                 goto out;
2427         }
2428
2429         crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, crtc->gamma_size);
2430
2431 out:
2432         mutex_unlock(&dev->mode_config.mutex);
2433         return ret;
2434
2435 }
2436
2437 int drm_mode_gamma_get_ioctl(struct drm_device *dev,
2438                              void *data, struct drm_file *file_priv)
2439 {
2440         struct drm_mode_crtc_lut *crtc_lut = data;
2441         struct drm_mode_object *obj;
2442         struct drm_crtc *crtc;
2443         void *r_base, *g_base, *b_base;
2444         int size;
2445         int ret = 0;
2446
2447         mutex_lock(&dev->mode_config.mutex);
2448         obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
2449         if (!obj) {
2450                 ret = -EINVAL;
2451                 goto out;
2452         }
2453         crtc = obj_to_crtc(obj);
2454
2455         /* memcpy into gamma store */
2456         if (crtc_lut->gamma_size != crtc->gamma_size) {
2457                 ret = -EINVAL;
2458                 goto out;
2459         }
2460
2461         size = crtc_lut->gamma_size * (sizeof(uint16_t));
2462         r_base = crtc->gamma_store;
2463         if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
2464                 ret = -EFAULT;
2465                 goto out;
2466         }
2467
2468         g_base = r_base + size;
2469         if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
2470                 ret = -EFAULT;
2471                 goto out;
2472         }
2473
2474         b_base = g_base + size;
2475         if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
2476                 ret = -EFAULT;
2477                 goto out;
2478         }
2479 out:
2480         mutex_unlock(&dev->mode_config.mutex);
2481         return ret;
2482 }