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