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

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