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 };
 112
 113 DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list)
 114
 115 static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] =
 116 {
 117         { DRM_MODE_SUBCONNECTOR_Unknown,   "Unknown"   }, /* DVI-I and TV-out */
 118         { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */
 119         { DRM_MODE_SUBCONNECTOR_SVIDEO,    "SVIDEO"    }, /* TV-out */
 120         { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */
 121 };
 122
 123 DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name,
 124                  drm_tv_subconnector_enum_list)
 125
 126 struct drm_conn_prop_enum_list {
 127         int type;
 128         char *name;
 129         int count;
 130 };
 131
 132 /*
 133  * Connector and encoder types.
 134  */
 135 static struct drm_conn_prop_enum_list drm_connector_enum_list[] =
 136 {       { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 },
 137         { DRM_MODE_CONNECTOR_VGA, "VGA", 0 },
 138         { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 },
 139         { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 },
 140         { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 },
 141         { DRM_MODE_CONNECTOR_Composite, "Composite", 0 },
 142         { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 },
 143         { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 },
 144         { DRM_MODE_CONNECTOR_Component, "Component", 0 },
 145         { DRM_MODE_CONNECTOR_9PinDIN, "9-pin DIN", 0 },
 146         { DRM_MODE_CONNECTOR_DisplayPort, "DisplayPort", 0 },
 147         { DRM_MODE_CONNECTOR_HDMIA, "HDMI Type A", 0 },
 148         { DRM_MODE_CONNECTOR_HDMIB, "HDMI Type B", 0 },
 149 };
 150
 151 static struct drm_prop_enum_list drm_encoder_enum_list[] =
 152 {       { DRM_MODE_ENCODER_NONE, "None" },
 153         { DRM_MODE_ENCODER_DAC, "DAC" },
 154         { DRM_MODE_ENCODER_TMDS, "TMDS" },
 155         { DRM_MODE_ENCODER_LVDS, "LVDS" },
 156         { DRM_MODE_ENCODER_TVDAC, "TV" },
 157 };
 158
 159 char *drm_get_encoder_name(struct drm_encoder *encoder)
 160 {
 161         static char buf[32];
 162
 163         snprintf(buf, 32, "%s-%d",
 164                  drm_encoder_enum_list[encoder->encoder_type].name,
 165                  encoder->base.id);
 166         return buf;
 167 }
 168
 169 char *drm_get_connector_name(struct drm_connector *connector)
 170 {
 171         static char buf[32];
 172
 173         snprintf(buf, 32, "%s-%d",
 174                  drm_connector_enum_list[connector->connector_type].name,
 175                  connector->connector_type_id);
 176         return buf;
 177 }
 178 EXPORT_SYMBOL(drm_get_connector_name);
 179
 180 char *drm_get_connector_status_name(enum drm_connector_status status)
 181 {
 182         if (status == connector_status_connected)
 183                 return "connected";
 184         else if (status == connector_status_disconnected)
 185                 return "disconnected";
 186         else
 187                 return "unknown";
 188 }
 189
 190 /**
 191  * drm_mode_object_get - allocate a new identifier
 192  * @dev: DRM device
 193  * @ptr: object pointer, used to generate unique ID
 194  * @type: object type
 195  *
 196  * LOCKING:
 197  * Caller must hold DRM mode_config lock.
 198  *
 199  * Create a unique identifier based on @ptr in @dev's identifier space.  Used
 200  * for tracking modes, CRTCs and connectors.
 201  *
 202  * RETURNS:
 203  * New unique (relative to other objects in @dev) integer identifier for the
 204  * object.
 205  */
 206 static int drm_mode_object_get(struct drm_device *dev,
 207                                struct drm_mode_object *obj, uint32_t obj_type)
 208 {
 209         int new_id = 0;
 210         int ret;
 211
 212         WARN(!mutex_is_locked(&dev->mode_config.mutex),
 213              "%s called w/o mode_config lock\n", __FUNCTION__);
 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         ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id);
 221         if (ret == -EAGAIN)
 222                 goto again;
 223
 224         obj->id = new_id;
 225         obj->type = obj_type;
 226         return 0;
 227 }
 228
 229 /**
 230  * drm_mode_object_put - free an identifer
 231  * @dev: DRM device
 232  * @id: ID to free
 233  *
 234  * LOCKING:
 235  * Caller must hold DRM mode_config lock.
 236  *
 237  * Free @id from @dev's unique identifier pool.
 238  */
 239 static void drm_mode_object_put(struct drm_device *dev,
 240                                 struct drm_mode_object *object)
 241 {
 242         idr_remove(&dev->mode_config.crtc_idr, object->id);
 243 }
 244
 245 void *drm_mode_object_find(struct drm_device *dev, uint32_t id, uint32_t type)
 246 {
 247         struct drm_mode_object *obj;
 248
 249         obj = idr_find(&dev->mode_config.crtc_idr, id);
 250         if (!obj || (obj->type != type) || (obj->id != id))
 251                 return NULL;
 252
 253         return obj;
 254 }
 255 EXPORT_SYMBOL(drm_mode_object_find);
 256
 257 /**
 258  * drm_crtc_from_fb - find the CRTC structure associated with an fb
 259  * @dev: DRM device
 260  * @fb: framebuffer in question
 261  *
 262  * LOCKING:
 263  * Caller must hold mode_config lock.
 264  *
 265  * Find CRTC in the mode_config structure that matches @fb.
 266  *
 267  * RETURNS:
 268  * Pointer to the CRTC or NULL if it wasn't found.
 269  */
 270 struct drm_crtc *drm_crtc_from_fb(struct drm_device *dev,
 271                                   struct drm_framebuffer *fb)
 272 {
 273         struct drm_crtc *crtc;
 274
 275         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 276                 if (crtc->fb == fb)
 277                         return crtc;
 278         }
 279         return NULL;
 280 }
 281
 282 /**
 283  * drm_framebuffer_init - initialize a framebuffer
 284  * @dev: DRM device
 285  *
 286  * LOCKING:
 287  * Caller must hold mode config lock.
 288  *
 289  * Allocates an ID for the framebuffer's parent mode object, sets its mode
 290  * functions & device file and adds it to the master fd list.
 291  *
 292  * RETURNS:
 293  * Zero on success, error code on falure.
 294  */
 295 int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
 296                          const struct drm_framebuffer_funcs *funcs)
 297 {
 298         int ret;
 299
 300         ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
 301         if (ret) {
 302                 return ret;
 303         }
 304
 305         fb->dev = dev;
 306         fb->funcs = funcs;
 307         dev->mode_config.num_fb++;
 308         list_add(&fb->head, &dev->mode_config.fb_list);
 309
 310         return 0;
 311 }
 312 EXPORT_SYMBOL(drm_framebuffer_init);
 313
 314 /**
 315  * drm_framebuffer_cleanup - remove a framebuffer object
 316  * @fb: framebuffer to remove
 317  *
 318  * LOCKING:
 319  * Caller must hold mode config lock.
 320  *
 321  * Scans all the CRTCs in @dev's mode_config.  If they're using @fb, removes
 322  * it, setting it to NULL.
 323  */
 324 void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
 325 {
 326         struct drm_device *dev = fb->dev;
 327         struct drm_crtc *crtc;
 328
 329         /* remove from any CRTC */
 330         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 331                 if (crtc->fb == fb)
 332                         crtc->fb = NULL;
 333         }
 334
 335         drm_mode_object_put(dev, &fb->base);
 336         list_del(&fb->head);
 337         dev->mode_config.num_fb--;
 338 }
 339 EXPORT_SYMBOL(drm_framebuffer_cleanup);
 340
 341 /**
 342  * drm_crtc_init - Initialise a new CRTC object
 343  * @dev: DRM device
 344  * @crtc: CRTC object to init
 345  * @funcs: callbacks for the new CRTC
 346  *
 347  * LOCKING:
 348  * Caller must hold mode config lock.
 349  *
 350  * Inits a new object created as base part of an driver crtc object.
 351  */
 352 void drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
 353                    const struct drm_crtc_funcs *funcs)
 354 {
 355         crtc->dev = dev;
 356         crtc->funcs = funcs;
 357
 358         mutex_lock(&dev->mode_config.mutex);
 359         drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC);
 360
 361         list_add_tail(&crtc->head, &dev->mode_config.crtc_list);
 362         dev->mode_config.num_crtc++;
 363         mutex_unlock(&dev->mode_config.mutex);
 364 }
 365 EXPORT_SYMBOL(drm_crtc_init);
 366
 367 /**
 368  * drm_crtc_cleanup - Cleans up the core crtc usage.
 369  * @crtc: CRTC to cleanup
 370  *
 371  * LOCKING:
 372  * Caller must hold mode config lock.
 373  *
 374  * Cleanup @crtc. Removes from drm modesetting space
 375  * does NOT free object, caller does that.
 376  */
 377 void drm_crtc_cleanup(struct drm_crtc *crtc)
 378 {
 379         struct drm_device *dev = crtc->dev;
 380
 381         if (crtc->gamma_store) {
 382                 kfree(crtc->gamma_store);
 383                 crtc->gamma_store = NULL;
 384         }
 385
 386         drm_mode_object_put(dev, &crtc->base);
 387         list_del(&crtc->head);
 388         dev->mode_config.num_crtc--;
 389 }
 390 EXPORT_SYMBOL(drm_crtc_cleanup);
 391
 392 /**
 393  * drm_mode_probed_add - add a mode to a connector's probed mode list
 394  * @connector: connector the new mode
 395  * @mode: mode data
 396  *
 397  * LOCKING:
 398  * Caller must hold mode config lock.
 399  *
 400  * Add @mode to @connector's mode list for later use.
 401  */
 402 void drm_mode_probed_add(struct drm_connector *connector,
 403                          struct drm_display_mode *mode)
 404 {
 405         list_add(&mode->head, &connector->probed_modes);
 406 }
 407 EXPORT_SYMBOL(drm_mode_probed_add);
 408
 409 /**
 410  * drm_mode_remove - remove and free a mode
 411  * @connector: connector list to modify
 412  * @mode: mode to remove
 413  *
 414  * LOCKING:
 415  * Caller must hold mode config lock.
 416  *
 417  * Remove @mode from @connector's mode list, then free it.
 418  */
 419 void drm_mode_remove(struct drm_connector *connector,
 420                      struct drm_display_mode *mode)
 421 {
 422         list_del(&mode->head);
 423         kfree(mode);
 424 }
 425 EXPORT_SYMBOL(drm_mode_remove);
 426
 427 /**
 428  * drm_connector_init - Init a preallocated connector
 429  * @dev: DRM device
 430  * @connector: the connector to init
 431  * @funcs: callbacks for this connector
 432  * @name: user visible name of the connector
 433  *
 434  * LOCKING:
 435  * Caller must hold @dev's mode_config lock.
 436  *
 437  * Initialises a preallocated connector. Connectors should be
 438  * subclassed as part of driver connector objects.
 439  */
 440 void drm_connector_init(struct drm_device *dev,
 441                      struct drm_connector *connector,
 442                      const struct drm_connector_funcs *funcs,
 443                      int connector_type)
 444 {
 445         mutex_lock(&dev->mode_config.mutex);
 446
 447         connector->dev = dev;
 448         connector->funcs = funcs;
 449         drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
 450         connector->connector_type = connector_type;
 451         connector->connector_type_id =
 452                 ++drm_connector_enum_list[connector_type].count; /* TODO */
 453         INIT_LIST_HEAD(&connector->user_modes);
 454         INIT_LIST_HEAD(&connector->probed_modes);
 455         INIT_LIST_HEAD(&connector->modes);
 456         connector->edid_blob_ptr = NULL;
 457
 458         list_add_tail(&connector->head, &dev->mode_config.connector_list);
 459         dev->mode_config.num_connector++;
 460
 461         drm_connector_attach_property(connector,
 462                                       dev->mode_config.edid_property, 0);
 463
 464         drm_connector_attach_property(connector,
 465                                       dev->mode_config.dpms_property, 0);
 466
 467         mutex_unlock(&dev->mode_config.mutex);
 468 }
 469 EXPORT_SYMBOL(drm_connector_init);
 470
 471 /**
 472  * drm_connector_cleanup - cleans up an initialised connector
 473  * @connector: connector to cleanup
 474  *
 475  * LOCKING:
 476  * Caller must hold @dev's mode_config lock.
 477  *
 478  * Cleans up the connector but doesn't free the object.
 479  */
 480 void drm_connector_cleanup(struct drm_connector *connector)
 481 {
 482         struct drm_device *dev = connector->dev;
 483         struct drm_display_mode *mode, *t;
 484
 485         list_for_each_entry_safe(mode, t, &connector->probed_modes, head)
 486                 drm_mode_remove(connector, mode);
 487
 488         list_for_each_entry_safe(mode, t, &connector->modes, head)
 489                 drm_mode_remove(connector, mode);
 490
 491         list_for_each_entry_safe(mode, t, &connector->user_modes, head)
 492                 drm_mode_remove(connector, mode);
 493
 494         mutex_lock(&dev->mode_config.mutex);
 495         drm_mode_object_put(dev, &connector->base);
 496         list_del(&connector->head);
 497         mutex_unlock(&dev->mode_config.mutex);
 498 }
 499 EXPORT_SYMBOL(drm_connector_cleanup);
 500
 501 void drm_encoder_init(struct drm_device *dev,
 502                       struct drm_encoder *encoder,
 503                       const struct drm_encoder_funcs *funcs,
 504                       int encoder_type)
 505 {
 506         mutex_lock(&dev->mode_config.mutex);
 507
 508         encoder->dev = dev;
 509
 510         drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER);
 511         encoder->encoder_type = encoder_type;
 512         encoder->funcs = funcs;
 513
 514         list_add_tail(&encoder->head, &dev->mode_config.encoder_list);
 515         dev->mode_config.num_encoder++;
 516
 517         mutex_unlock(&dev->mode_config.mutex);
 518 }
 519 EXPORT_SYMBOL(drm_encoder_init);
 520
 521 void drm_encoder_cleanup(struct drm_encoder *encoder)
 522 {
 523         struct drm_device *dev = encoder->dev;
 524         mutex_lock(&dev->mode_config.mutex);
 525         drm_mode_object_put(dev, &encoder->base);
 526         list_del(&encoder->head);
 527         mutex_unlock(&dev->mode_config.mutex);
 528 }
 529 EXPORT_SYMBOL(drm_encoder_cleanup);
 530
 531 /**
 532  * drm_mode_create - create a new display mode
 533  * @dev: DRM device
 534  *
 535  * LOCKING:
 536  * Caller must hold DRM mode_config lock.
 537  *
 538  * Create a new drm_display_mode, give it an ID, and return it.
 539  *
 540  * RETURNS:
 541  * Pointer to new mode on success, NULL on error.
 542  */
 543 struct drm_display_mode *drm_mode_create(struct drm_device *dev)
 544 {
 545         struct drm_display_mode *nmode;
 546
 547         nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL);
 548         if (!nmode)
 549                 return NULL;
 550
 551         drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE);
 552         return nmode;
 553 }
 554 EXPORT_SYMBOL(drm_mode_create);
 555
 556 /**
 557  * drm_mode_destroy - remove a mode
 558  * @dev: DRM device
 559  * @mode: mode to remove
 560  *
 561  * LOCKING:
 562  * Caller must hold mode config lock.
 563  *
 564  * Free @mode's unique identifier, then free it.
 565  */
 566 void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
 567 {
 568         drm_mode_object_put(dev, &mode->base);
 569
 570         kfree(mode);
 571 }
 572 EXPORT_SYMBOL(drm_mode_destroy);
 573
 574 static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
 575 {
 576         struct drm_property *edid;
 577         struct drm_property *dpms;
 578         int i;
 579
 580         /*
 581          * Standard properties (apply to all connectors)
 582          */
 583         edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
 584                                    DRM_MODE_PROP_IMMUTABLE,
 585                                    "EDID", 0);
 586         dev->mode_config.edid_property = edid;
 587
 588         dpms = drm_property_create(dev, DRM_MODE_PROP_ENUM,
 589                                    "DPMS", ARRAY_SIZE(drm_dpms_enum_list));
 590         for (i = 0; i < ARRAY_SIZE(drm_dpms_enum_list); i++)
 591                 drm_property_add_enum(dpms, i, drm_dpms_enum_list[i].type,
 592                                       drm_dpms_enum_list[i].name);
 593         dev->mode_config.dpms_property = dpms;
 594
 595         return 0;
 596 }
 597
 598 /**
 599  * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties
 600  * @dev: DRM device
 601  *
 602  * Called by a driver the first time a DVI-I connector is made.
 603  */
 604 int drm_mode_create_dvi_i_properties(struct drm_device *dev)
 605 {
 606         struct drm_property *dvi_i_selector;
 607         struct drm_property *dvi_i_subconnector;
 608         int i;
 609
 610         if (dev->mode_config.dvi_i_select_subconnector_property)
 611                 return 0;
 612
 613         dvi_i_selector =
 614                 drm_property_create(dev, DRM_MODE_PROP_ENUM,
 615                                     "select subconnector",
 616                                     ARRAY_SIZE(drm_dvi_i_select_enum_list));
 617         for (i = 0; i < ARRAY_SIZE(drm_dvi_i_select_enum_list); i++)
 618                 drm_property_add_enum(dvi_i_selector, i,
 619                                       drm_dvi_i_select_enum_list[i].type,
 620                                       drm_dvi_i_select_enum_list[i].name);
 621         dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector;
 622
 623         dvi_i_subconnector =
 624                 drm_property_create(dev, DRM_MODE_PROP_ENUM |
 625                                     DRM_MODE_PROP_IMMUTABLE,
 626                                     "subconnector",
 627                                     ARRAY_SIZE(drm_dvi_i_subconnector_enum_list));
 628         for (i = 0; i < ARRAY_SIZE(drm_dvi_i_subconnector_enum_list); i++)
 629                 drm_property_add_enum(dvi_i_subconnector, i,
 630                                       drm_dvi_i_subconnector_enum_list[i].type,
 631                                       drm_dvi_i_subconnector_enum_list[i].name);
 632         dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector;
 633
 634         return 0;
 635 }
 636 EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
 637
 638 /**
 639  * drm_create_tv_properties - create TV specific connector properties
 640  * @dev: DRM device
 641  * @num_modes: number of different TV formats (modes) supported
 642  * @modes: array of pointers to strings containing name of each format
 643  *
 644  * Called by a driver's TV initialization routine, this function creates
 645  * the TV specific connector properties for a given device.  Caller is
 646  * responsible for allocating a list of format names and passing them to
 647  * this routine.
 648  */
 649 int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes,
 650                                   char *modes[])
 651 {
 652         struct drm_property *tv_selector;
 653         struct drm_property *tv_subconnector;
 654         int i;
 655
 656         if (dev->mode_config.tv_select_subconnector_property)
 657                 return 0;
 658
 659         /*
 660          * Basic connector properties
 661          */
 662         tv_selector = drm_property_create(dev, DRM_MODE_PROP_ENUM,
 663                                           "select subconnector",
 664                                           ARRAY_SIZE(drm_tv_select_enum_list));
 665         for (i = 0; i < ARRAY_SIZE(drm_tv_select_enum_list); i++)
 666                 drm_property_add_enum(tv_selector, i,
 667                                       drm_tv_select_enum_list[i].type,
 668                                       drm_tv_select_enum_list[i].name);
 669         dev->mode_config.tv_select_subconnector_property = tv_selector;
 670
 671         tv_subconnector =
 672                 drm_property_create(dev, DRM_MODE_PROP_ENUM |
 673                                     DRM_MODE_PROP_IMMUTABLE, "subconnector",
 674                                     ARRAY_SIZE(drm_tv_subconnector_enum_list));
 675         for (i = 0; i < ARRAY_SIZE(drm_tv_subconnector_enum_list); i++)
 676                 drm_property_add_enum(tv_subconnector, i,
 677                                       drm_tv_subconnector_enum_list[i].type,
 678                                       drm_tv_subconnector_enum_list[i].name);
 679         dev->mode_config.tv_subconnector_property = tv_subconnector;
 680
 681         /*
 682          * Other, TV specific properties: margins & TV modes.
 683          */
 684         dev->mode_config.tv_left_margin_property =
 685                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 686                                     "left margin", 2);
 687         dev->mode_config.tv_left_margin_property->values[0] = 0;
 688         dev->mode_config.tv_left_margin_property->values[1] = 100;
 689
 690         dev->mode_config.tv_right_margin_property =
 691                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 692                                     "right margin", 2);
 693         dev->mode_config.tv_right_margin_property->values[0] = 0;
 694         dev->mode_config.tv_right_margin_property->values[1] = 100;
 695
 696         dev->mode_config.tv_top_margin_property =
 697                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 698                                     "top margin", 2);
 699         dev->mode_config.tv_top_margin_property->values[0] = 0;
 700         dev->mode_config.tv_top_margin_property->values[1] = 100;
 701
 702         dev->mode_config.tv_bottom_margin_property =
 703                 drm_property_create(dev, DRM_MODE_PROP_RANGE,
 704                                     "bottom margin", 2);
 705         dev->mode_config.tv_bottom_margin_property->values[0] = 0;
 706         dev->mode_config.tv_bottom_margin_property->values[1] = 100;
 707
 708         dev->mode_config.tv_mode_property =
 709                 drm_property_create(dev, DRM_MODE_PROP_ENUM,
 710                                     "mode", num_modes);
 711         for (i = 0; i < num_modes; i++)
 712                 drm_property_add_enum(dev->mode_config.tv_mode_property, i,
 713                                       i, modes[i]);
 714
 715         return 0;
 716 }
 717 EXPORT_SYMBOL(drm_mode_create_tv_properties);
 718
 719 /**
 720  * drm_mode_create_scaling_mode_property - create scaling mode property
 721  * @dev: DRM device
 722  *
 723  * Called by a driver the first time it's needed, must be attached to desired
 724  * connectors.
 725  */
 726 int drm_mode_create_scaling_mode_property(struct drm_device *dev)
 727 {
 728         struct drm_property *scaling_mode;
 729         int i;
 730
 731         if (dev->mode_config.scaling_mode_property)
 732                 return 0;
 733
 734         scaling_mode =
 735                 drm_property_create(dev, DRM_MODE_PROP_ENUM, "scaling mode",
 736                                     ARRAY_SIZE(drm_scaling_mode_enum_list));
 737         for (i = 0; i < ARRAY_SIZE(drm_scaling_mode_enum_list); i++)
 738                 drm_property_add_enum(scaling_mode, i,
 739                                       drm_scaling_mode_enum_list[i].type,
 740                                       drm_scaling_mode_enum_list[i].name);
 741
 742         dev->mode_config.scaling_mode_property = scaling_mode;
 743
 744         return 0;
 745 }
 746 EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
 747
 748 /**
 749  * drm_mode_create_dithering_property - create dithering property
 750  * @dev: DRM device
 751  *
 752  * Called by a driver the first time it's needed, must be attached to desired
 753  * connectors.
 754  */
 755 int drm_mode_create_dithering_property(struct drm_device *dev)
 756 {
 757         struct drm_property *dithering_mode;
 758         int i;
 759
 760         if (dev->mode_config.dithering_mode_property)
 761                 return 0;
 762
 763         dithering_mode =
 764                 drm_property_create(dev, DRM_MODE_PROP_ENUM, "dithering",
 765                                     ARRAY_SIZE(drm_dithering_mode_enum_list));
 766         for (i = 0; i < ARRAY_SIZE(drm_dithering_mode_enum_list); i++)
 767                 drm_property_add_enum(dithering_mode, i,
 768                                       drm_dithering_mode_enum_list[i].type,
 769                                       drm_dithering_mode_enum_list[i].name);
 770         dev->mode_config.dithering_mode_property = dithering_mode;
 771
 772         return 0;
 773 }
 774 EXPORT_SYMBOL(drm_mode_create_dithering_property);
 775
 776 /**
 777  * drm_mode_config_init - initialize DRM mode_configuration structure
 778  * @dev: DRM device
 779  *
 780  * LOCKING:
 781  * None, should happen single threaded at init time.
 782  *
 783  * Initialize @dev's mode_config structure, used for tracking the graphics
 784  * configuration of @dev.
 785  */
 786 void drm_mode_config_init(struct drm_device *dev)
 787 {
 788         mutex_init(&dev->mode_config.mutex);
 789         INIT_LIST_HEAD(&dev->mode_config.fb_list);
 790         INIT_LIST_HEAD(&dev->mode_config.fb_kernel_list);
 791         INIT_LIST_HEAD(&dev->mode_config.crtc_list);
 792         INIT_LIST_HEAD(&dev->mode_config.connector_list);
 793         INIT_LIST_HEAD(&dev->mode_config.encoder_list);
 794         INIT_LIST_HEAD(&dev->mode_config.property_list);
 795         INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
 796         idr_init(&dev->mode_config.crtc_idr);
 797
 798         mutex_lock(&dev->mode_config.mutex);
 799         drm_mode_create_standard_connector_properties(dev);
 800         mutex_unlock(&dev->mode_config.mutex);
 801
 802         /* Just to be sure */
 803         dev->mode_config.num_fb = 0;
 804         dev->mode_config.num_connector = 0;
 805         dev->mode_config.num_crtc = 0;
 806         dev->mode_config.num_encoder = 0;
 807         dev->mode_config.hotplug_counter = 0;
 808 }
 809 EXPORT_SYMBOL(drm_mode_config_init);
 810
 811 int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group)
 812 {
 813         uint32_t total_objects = 0;
 814
 815         total_objects += dev->mode_config.num_crtc;
 816         total_objects += dev->mode_config.num_connector;
 817         total_objects += dev->mode_config.num_encoder;
 818
 819         if (total_objects == 0)
 820                 return -EINVAL;
 821
 822         group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL);
 823         if (!group->id_list)
 824                 return -ENOMEM;
 825
 826         group->num_crtcs = 0;
 827         group->num_connectors = 0;
 828         group->num_encoders = 0;
 829         return 0;
 830 }
 831
 832 int drm_mode_group_init_legacy_group(struct drm_device *dev,
 833                                      struct drm_mode_group *group)
 834 {
 835         struct drm_crtc *crtc;
 836         struct drm_encoder *encoder;
 837         struct drm_connector *connector;
 838         int ret;
 839
 840         if ((ret = drm_mode_group_init(dev, group)))
 841                 return ret;
 842
 843         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
 844                 group->id_list[group->num_crtcs++] = crtc->base.id;
 845
 846         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
 847                 group->id_list[group->num_crtcs + group->num_encoders++] =
 848                 encoder->base.id;
 849
 850         list_for_each_entry(connector, &dev->mode_config.connector_list, head)
 851                 group->id_list[group->num_crtcs + group->num_encoders +
 852                                group->num_connectors++] = connector->base.id;
 853
 854         return 0;
 855 }
 856
 857 /**
 858  * drm_mode_config_cleanup - free up DRM mode_config info
 859  * @dev: DRM device
 860  *
 861  * LOCKING:
 862  * Caller must hold mode config lock.
 863  *
 864  * Free up all the connectors and CRTCs associated with this DRM device, then
 865  * free up the framebuffers and associated buffer objects.
 866  *
 867  * FIXME: cleanup any dangling user buffer objects too
 868  */
 869 void drm_mode_config_cleanup(struct drm_device *dev)
 870 {
 871         struct drm_connector *connector, *ot;
 872         struct drm_crtc *crtc, *ct;
 873         struct drm_encoder *encoder, *enct;
 874         struct drm_framebuffer *fb, *fbt;
 875         struct drm_property *property, *pt;
 876
 877         list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
 878                                  head) {
 879                 encoder->funcs->destroy(encoder);
 880         }
 881
 882         list_for_each_entry_safe(connector, ot,
 883                                  &dev->mode_config.connector_list, head) {
 884                 connector->funcs->destroy(connector);
 885         }
 886
 887         list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,
 888                                  head) {
 889                 drm_property_destroy(dev, property);
 890         }
 891
 892         list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
 893                 fb->funcs->destroy(fb);
 894         }
 895
 896         list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
 897                 crtc->funcs->destroy(crtc);
 898         }
 899
 900 }
 901 EXPORT_SYMBOL(drm_mode_config_cleanup);
 902
 903 int drm_mode_hotplug_ioctl(struct drm_device *dev,
 904                            void *data, struct drm_file *file_priv)
 905 {
 906         struct drm_mode_hotplug *arg = data;
 907
 908         arg->counter = dev->mode_config.hotplug_counter;
 909
 910         return 0;
 911 }
 912
 913 /**
 914  * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
 915  * @out: drm_mode_modeinfo struct to return to the user
 916  * @in: drm_display_mode to use
 917  *
 918  * LOCKING:
 919  * None.
 920  *
 921  * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to
 922  * the user.
 923  */
 924 void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out,
 925                                struct drm_display_mode *in)
 926 {
 927         out->clock = in->clock;
 928         out->hdisplay = in->hdisplay;
 929         out->hsync_start = in->hsync_start;
 930         out->hsync_end = in->hsync_end;
 931         out->htotal = in->htotal;
 932         out->hskew = in->hskew;
 933         out->vdisplay = in->vdisplay;
 934         out->vsync_start = in->vsync_start;
 935         out->vsync_end = in->vsync_end;
 936         out->vtotal = in->vtotal;
 937         out->vscan = in->vscan;
 938         out->vrefresh = in->vrefresh;
 939         out->flags = in->flags;
 940         out->type = in->type;
 941         strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
 942         out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
 943 }
 944
 945 /**
 946  * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode
 947  * @out: drm_display_mode to return to the user
 948  * @in: drm_mode_modeinfo to use
 949  *
 950  * LOCKING:
 951  * None.
 952  *
 953  * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to
 954  * the caller.
 955  */
 956 void drm_crtc_convert_umode(struct drm_display_mode *out,
 957                             struct drm_mode_modeinfo *in)
 958 {
 959         out->clock = in->clock;
 960         out->hdisplay = in->hdisplay;
 961         out->hsync_start = in->hsync_start;
 962         out->hsync_end = in->hsync_end;
 963         out->htotal = in->htotal;
 964         out->hskew = in->hskew;
 965         out->vdisplay = in->vdisplay;
 966         out->vsync_start = in->vsync_start;
 967         out->vsync_end = in->vsync_end;
 968         out->vtotal = in->vtotal;
 969         out->vscan = in->vscan;
 970         out->vrefresh = in->vrefresh;
 971         out->flags = in->flags;
 972         out->type = in->type;
 973         strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN);
 974         out->name[DRM_DISPLAY_MODE_LEN-1] = 0;
 975 }
 976
 977 /**
 978  * drm_mode_getresources - get graphics configuration
 979  * @inode: inode from the ioctl
 980  * @filp: file * from the ioctl
 981  * @cmd: cmd from ioctl
 982  * @arg: arg from ioctl
 983  *
 984  * LOCKING:
 985  * Takes mode config lock.
 986  *
 987  * Construct a set of configuration description structures and return
 988  * them to the user, including CRTC, connector and framebuffer configuration.
 989  *
 990  * Called by the user via ioctl.
 991  *
 992  * RETURNS:
 993  * Zero on success, errno on failure.
 994  */
 995 int drm_mode_getresources(struct drm_device *dev, void *data,
 996                           struct drm_file *file_priv)
 997 {
 998         struct drm_mode_card_res *card_res = data;
 999         struct list_head *lh;
1000         struct drm_framebuffer *fb;
1001         struct drm_connector *connector;
1002         struct drm_crtc *crtc;
1003         struct drm_encoder *encoder;
1004         int ret = 0;
1005         int connector_count = 0;
1006         int crtc_count = 0;
1007         int fb_count = 0;
1008         int encoder_count = 0;
1009         int copied = 0, i;
1010         uint32_t __user *fb_id;
1011         uint32_t __user *crtc_id;
1012         uint32_t __user *connector_id;
1013         uint32_t __user *encoder_id;
1014         struct drm_mode_group *mode_group;
1015
1016         mutex_lock(&dev->mode_config.mutex);
1017
1018         /*
1019          * For the non-control nodes we need to limit the list of resources
1020          * by IDs in the group list for this node
1021          */
1022         list_for_each(lh, &file_priv->fbs)
1023                 fb_count++;
1024
1025         mode_group = &file_priv->master->minor->mode_group;
1026         if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1027
1028                 list_for_each(lh, &dev->mode_config.crtc_list)
1029                         crtc_count++;
1030
1031                 list_for_each(lh, &dev->mode_config.connector_list)
1032                         connector_count++;
1033
1034                 list_for_each(lh, &dev->mode_config.encoder_list)
1035                         encoder_count++;
1036         } else {
1037
1038                 crtc_count = mode_group->num_crtcs;
1039                 connector_count = mode_group->num_connectors;
1040                 encoder_count = mode_group->num_encoders;
1041         }
1042
1043         card_res->max_height = dev->mode_config.max_height;
1044         card_res->min_height = dev->mode_config.min_height;
1045         card_res->max_width = dev->mode_config.max_width;
1046         card_res->min_width = dev->mode_config.min_width;
1047
1048         /* handle this in 4 parts */
1049         /* FBs */
1050         if (card_res->count_fbs >= fb_count) {
1051                 copied = 0;
1052                 fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr;
1053                 list_for_each_entry(fb, &file_priv->fbs, head) {
1054                         if (put_user(fb->base.id, fb_id + copied)) {
1055                                 ret = -EFAULT;
1056                                 goto out;
1057                         }
1058                         copied++;
1059                 }
1060         }
1061         card_res->count_fbs = fb_count;
1062
1063         /* CRTCs */
1064         if (card_res->count_crtcs >= crtc_count) {
1065                 copied = 0;
1066                 crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
1067                 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1068                         list_for_each_entry(crtc, &dev->mode_config.crtc_list,
1069                                             head) {
1070                                 DRM_DEBUG("CRTC ID is %d\n", crtc->base.id);
1071                                 if (put_user(crtc->base.id, crtc_id + copied)) {
1072                                         ret = -EFAULT;
1073                                         goto out;
1074                                 }
1075                                 copied++;
1076                         }
1077                 } else {
1078                         for (i = 0; i < mode_group->num_crtcs; i++) {
1079                                 if (put_user(mode_group->id_list[i],
1080                                              crtc_id + copied)) {
1081                                         ret = -EFAULT;
1082                                         goto out;
1083                                 }
1084                                 copied++;
1085                         }
1086                 }
1087         }
1088         card_res->count_crtcs = crtc_count;
1089
1090         /* Encoders */
1091         if (card_res->count_encoders >= encoder_count) {
1092                 copied = 0;
1093                 encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
1094                 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1095                         list_for_each_entry(encoder,
1096                                             &dev->mode_config.encoder_list,
1097                                             head) {
1098                                 DRM_DEBUG("ENCODER ID is %d\n",
1099                                           encoder->base.id);
1100                                 if (put_user(encoder->base.id, encoder_id +
1101                                              copied)) {
1102                                         ret = -EFAULT;
1103                                         goto out;
1104                                 }
1105                                 copied++;
1106                         }
1107                 } else {
1108                         for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) {
1109                                 if (put_user(mode_group->id_list[i],
1110                                              encoder_id + copied)) {
1111                                         ret = -EFAULT;
1112                                         goto out;
1113                                 }
1114                                 copied++;
1115                         }
1116
1117                 }
1118         }
1119         card_res->count_encoders = encoder_count;
1120
1121         /* Connectors */
1122         if (card_res->count_connectors >= connector_count) {
1123                 copied = 0;
1124                 connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
1125                 if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
1126                         list_for_each_entry(connector,
1127                                             &dev->mode_config.connector_list,
1128                                             head) {
1129                                 DRM_DEBUG("CONNECTOR ID is %d\n",
1130                                           connector->base.id);
1131                                 if (put_user(connector->base.id,
1132                                              connector_id + copied)) {
1133                                         ret = -EFAULT;
1134                                         goto out;
1135                                 }
1136                                 copied++;
1137                         }
1138                 } else {
1139                         int start = mode_group->num_crtcs +
1140                                 mode_group->num_encoders;
1141                         for (i = start; i < start + mode_group->num_connectors; i++) {
1142                                 if (put_user(mode_group->id_list[i],
1143                                              connector_id + copied)) {
1144                                         ret = -EFAULT;
1145                                         goto out;
1146                                 }
1147                                 copied++;
1148                         }
1149                 }
1150         }
1151         card_res->count_connectors = connector_count;
1152
1153         DRM_DEBUG("Counted %d %d %d\n", card_res->count_crtcs,
1154                   card_res->count_connectors, card_res->count_encoders);
1155
1156 out:
1157         mutex_unlock(&dev->mode_config.mutex);
1158         return ret;
1159 }
1160
1161 /**
1162  * drm_mode_getcrtc - get CRTC configuration
1163  * @inode: inode from the ioctl
1164  * @filp: file * from the ioctl
1165  * @cmd: cmd from ioctl
1166  * @arg: arg from ioctl
1167  *
1168  * LOCKING:
1169  * Caller? (FIXME)
1170  *
1171  * Construct a CRTC configuration structure to return to the user.
1172  *
1173  * Called by the user via ioctl.
1174  *
1175  * RETURNS:
1176  * Zero on success, errno on failure.
1177  */
1178 int drm_mode_getcrtc(struct drm_device *dev,
1179                      void *data, struct drm_file *file_priv)
1180 {
1181         struct drm_mode_crtc *crtc_resp = data;
1182         struct drm_crtc *crtc;
1183         struct drm_mode_object *obj;
1184         int ret = 0;
1185
1186         mutex_lock(&dev->mode_config.mutex);
1187
1188         obj = drm_mode_object_find(dev, crtc_resp->crtc_id,
1189                                    DRM_MODE_OBJECT_CRTC);
1190         if (!obj) {
1191                 ret = -EINVAL;
1192                 goto out;
1193         }
1194         crtc = obj_to_crtc(obj);
1195
1196         crtc_resp->x = crtc->x;
1197         crtc_resp->y = crtc->y;
1198         crtc_resp->gamma_size = crtc->gamma_size;
1199         if (crtc->fb)
1200                 crtc_resp->fb_id = crtc->fb->base.id;
1201         else
1202                 crtc_resp->fb_id = 0;
1203
1204         if (crtc->enabled) {
1205
1206                 drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode);
1207                 crtc_resp->mode_valid = 1;
1208
1209         } else {
1210                 crtc_resp->mode_valid = 0;
1211         }
1212
1213 out:
1214         mutex_unlock(&dev->mode_config.mutex);
1215         return ret;
1216 }
1217
1218 /**
1219  * drm_mode_getconnector - get connector configuration
1220  * @inode: inode from the ioctl
1221  * @filp: file * from the ioctl
1222  * @cmd: cmd from ioctl
1223  * @arg: arg from ioctl
1224  *
1225  * LOCKING:
1226  * Caller? (FIXME)
1227  *
1228  * Construct a connector configuration structure to return to the user.
1229  *
1230  * Called by the user via ioctl.
1231  *
1232  * RETURNS:
1233  * Zero on success, errno on failure.
1234  */
1235 int drm_mode_getconnector(struct drm_device *dev, void *data,
1236                           struct drm_file *file_priv)
1237 {
1238         struct drm_mode_get_connector *out_resp = data;
1239         struct drm_mode_object *obj;
1240         struct drm_connector *connector;
1241         struct drm_display_mode *mode;
1242         int mode_count = 0;
1243         int props_count = 0;
1244         int encoders_count = 0;
1245         int ret = 0;
1246         int copied = 0;
1247         int i;
1248         struct drm_mode_modeinfo u_mode;
1249         struct drm_mode_modeinfo __user *mode_ptr;
1250         uint32_t __user *prop_ptr;
1251         uint64_t __user *prop_values;
1252         uint32_t __user *encoder_ptr;
1253
1254         memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo));
1255
1256         DRM_DEBUG("connector id %d:\n", out_resp->connector_id);
1257
1258         mutex_lock(&dev->mode_config.mutex);
1259
1260         obj = drm_mode_object_find(dev, out_resp->connector_id,
1261                                    DRM_MODE_OBJECT_CONNECTOR);
1262         if (!obj) {
1263                 ret = -EINVAL;
1264                 goto out;
1265         }
1266         connector = obj_to_connector(obj);
1267
1268         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1269                 if (connector->property_ids[i] != 0) {
1270                         props_count++;
1271                 }
1272         }
1273
1274         for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1275                 if (connector->encoder_ids[i] != 0) {
1276                         encoders_count++;
1277                 }
1278         }
1279
1280         if (out_resp->count_modes == 0) {
1281                 connector->funcs->fill_modes(connector,
1282                                              dev->mode_config.max_width,
1283                                              dev->mode_config.max_height);
1284         }
1285
1286         /* delayed so we get modes regardless of pre-fill_modes state */
1287         list_for_each_entry(mode, &connector->modes, head)
1288                 mode_count++;
1289
1290         out_resp->connector_id = connector->base.id;
1291         out_resp->connector_type = connector->connector_type;
1292         out_resp->connector_type_id = connector->connector_type_id;
1293         out_resp->mm_width = connector->display_info.width_mm;
1294         out_resp->mm_height = connector->display_info.height_mm;
1295         out_resp->subpixel = connector->display_info.subpixel_order;
1296         out_resp->connection = connector->status;
1297         if (connector->encoder)
1298                 out_resp->encoder_id = connector->encoder->base.id;
1299         else
1300                 out_resp->encoder_id = 0;
1301
1302         /*
1303          * This ioctl is called twice, once to determine how much space is
1304          * needed, and the 2nd time to fill it.
1305          */
1306         if ((out_resp->count_modes >= mode_count) && mode_count) {
1307                 copied = 0;
1308                 mode_ptr = (struct drm_mode_modeinfo *)(unsigned long)out_resp->modes_ptr;
1309                 list_for_each_entry(mode, &connector->modes, head) {
1310                         drm_crtc_convert_to_umode(&u_mode, mode);
1311                         if (copy_to_user(mode_ptr + copied,
1312                                          &u_mode, sizeof(u_mode))) {
1313                                 ret = -EFAULT;
1314                                 goto out;
1315                         }
1316                         copied++;
1317                 }
1318         }
1319         out_resp->count_modes = mode_count;
1320
1321         if ((out_resp->count_props >= props_count) && props_count) {
1322                 copied = 0;
1323                 prop_ptr = (uint32_t *)(unsigned long)(out_resp->props_ptr);
1324                 prop_values = (uint64_t *)(unsigned long)(out_resp->prop_values_ptr);
1325                 for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
1326                         if (connector->property_ids[i] != 0) {
1327                                 if (put_user(connector->property_ids[i],
1328                                              prop_ptr + copied)) {
1329                                         ret = -EFAULT;
1330                                         goto out;
1331                                 }
1332
1333                                 if (put_user(connector->property_values[i],
1334                                              prop_values + copied)) {
1335                                         ret = -EFAULT;
1336                                         goto out;
1337                                 }
1338                                 copied++;
1339                         }
1340                 }
1341         }
1342         out_resp->count_props = props_count;
1343
1344         if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
1345                 copied = 0;
1346                 encoder_ptr = (uint32_t *)(unsigned long)(out_resp->encoders_ptr);
1347                 for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
1348                         if (connector->encoder_ids[i] != 0) {
1349                                 if (put_user(connector->encoder_ids[i],
1350                                              encoder_ptr + copied)) {
1351                                         ret = -EFAULT;
1352                                         goto out;
1353                                 }
1354                                 copied++;
1355                         }
1356                 }
1357         }
1358         out_resp->count_encoders = encoders_count;
1359
1360 out:
1361         mutex_unlock(&dev->mode_config.mutex);
1362         return ret;
1363 }
1364
1365 int drm_mode_getencoder(struct drm_device *dev, void *data,
1366                         struct drm_file *file_priv)
1367 {
1368         struct drm_mode_get_encoder *enc_resp = data;
1369         struct drm_mode_object *obj;
1370         struct drm_encoder *encoder;
1371         int ret = 0;
1372
1373         mutex_lock(&dev->mode_config.mutex);
1374         obj = drm_mode_object_find(dev, enc_resp->encoder_id,
1375                                    DRM_MODE_OBJECT_ENCODER);
1376         if (!obj) {
1377                 ret = -EINVAL;
1378                 goto out;
1379         }
1380         encoder = obj_to_encoder(obj);
1381
1382         if (encoder->crtc)
1383                 enc_resp->crtc_id = encoder->crtc->base.id;
1384         else
1385                 enc_resp->crtc_id = 0;
1386         enc_resp->encoder_type = encoder->encoder_type;
1387         enc_resp->encoder_id = encoder->base.id;
1388         enc_resp->possible_crtcs = encoder->possible_crtcs;
1389         enc_resp->possible_clones = encoder->possible_clones;
1390
1391 out:
1392         mutex_unlock(&dev->mode_config.mutex);
1393         return ret;
1394 }
1395
1396 /**
1397  * drm_mode_setcrtc - set CRTC configuration
1398  * @inode: inode from the ioctl
1399  * @filp: file * from the ioctl
1400  * @cmd: cmd from ioctl
1401  * @arg: arg from ioctl
1402  *
1403  * LOCKING:
1404  * Caller? (FIXME)
1405  *
1406  * Build a new CRTC configuration based on user request.
1407  *
1408  * Called by the user via ioctl.
1409  *
1410  * RETURNS:
1411  * Zero on success, errno on failure.
1412  */
1413 int drm_mode_setcrtc(struct drm_device *dev, void *data,
1414                      struct drm_file *file_priv)
1415 {
1416         struct drm_mode_config *config = &dev->mode_config;
1417         struct drm_mode_crtc *crtc_req = data;
1418         struct drm_mode_object *obj;
1419         struct drm_crtc *crtc, *crtcfb;
1420         struct drm_connector **connector_set = NULL, *connector;
1421         struct drm_framebuffer *fb = NULL;
1422         struct drm_display_mode *mode = NULL;
1423         struct drm_mode_set set;
1424         uint32_t __user *set_connectors_ptr;
1425         int ret = 0;
1426         int i;
1427
1428         mutex_lock(&dev->mode_config.mutex);
1429         obj = drm_mode_object_find(dev, crtc_req->crtc_id,
1430                                    DRM_MODE_OBJECT_CRTC);
1431         if (!obj) {
1432                 DRM_DEBUG("Unknown CRTC ID %d\n", crtc_req->crtc_id);
1433                 ret = -EINVAL;
1434                 goto out;
1435         }
1436         crtc = obj_to_crtc(obj);
1437
1438         if (crtc_req->mode_valid) {
1439                 /* If we have a mode we need a framebuffer. */
1440                 /* If we pass -1, set the mode with the currently bound fb */
1441                 if (crtc_req->fb_id == -1) {
1442                         list_for_each_entry(crtcfb,
1443                                             &dev->mode_config.crtc_list, head) {
1444                                 if (crtcfb == crtc) {
1445                                         DRM_DEBUG("Using current fb for setmode\n");
1446                                         fb = crtc->fb;
1447                                 }
1448                         }
1449                 } else {
1450                         obj = drm_mode_object_find(dev, crtc_req->fb_id,
1451                                                    DRM_MODE_OBJECT_FB);
1452                         if (!obj) {
1453                                 DRM_DEBUG("Unknown FB ID%d\n", crtc_req->fb_id);
1454                                 ret = -EINVAL;
1455                                 goto out;
1456                         }
1457                         fb = obj_to_fb(obj);
1458                 }
1459
1460                 mode = drm_mode_create(dev);
1461                 drm_crtc_convert_umode(mode, &crtc_req->mode);
1462                 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
1463         }
1464
1465         if (crtc_req->count_connectors == 0 && mode) {
1466                 DRM_DEBUG("Count connectors is 0 but mode set\n");
1467                 ret = -EINVAL;
1468                 goto out;
1469         }
1470
1471         if (crtc_req->count_connectors > 0 && !mode && !fb) {
1472                 DRM_DEBUG("Count connectors is %d but no mode or fb set\n",
1473                           crtc_req->count_connectors);
1474                 ret = -EINVAL;
1475                 goto out;
1476         }
1477
1478         if (crtc_req->count_connectors > 0) {
1479                 u32 out_id;
1480
1481                 /* Avoid unbounded kernel memory allocation */
1482                 if (crtc_req->count_connectors > config->num_connector) {
1483                         ret = -EINVAL;
1484                         goto out;
1485                 }
1486
1487                 connector_set = kmalloc(crtc_req->count_connectors *
1488                                         sizeof(struct drm_connector *),
1489                                         GFP_KERNEL);
1490                 if (!connector_set) {
1491                         ret = -ENOMEM;
1492                         goto out;
1493                 }
1494
1495                 for (i = 0; i < crtc_req->count_connectors; i++) {
1496                         set_connectors_ptr = (uint32_t *)(unsigned long)crtc_req->set_connectors_ptr;
1497                         if (get_user(out_id, &set_connectors_ptr[i])) {
1498                                 ret = -EFAULT;
1499                                 goto out;
1500                         }
1501
1502                         obj = drm_mode_object_find(dev, out_id,
1503                                                    DRM_MODE_OBJECT_CONNECTOR);
1504                         if (!obj) {
1505                                 DRM_DEBUG("Connector id %d unknown\n", out_id);
1506                                 ret = -EINVAL;
1507                                 goto out;
1508                         }
1509                         connector = obj_to_connector(obj);
1510
1511                         connector_set[i] = connector;
1512                 }
1513         }
1514
1515         set.crtc = crtc;
1516         set.x = crtc_req->x;
1517         set.y = crtc_req->y;
1518         set.mode = mode;
1519         set.connectors = connector_set;
1520         set.num_connectors = crtc_req->count_connectors;
1521         set.fb =fb;
1522         ret = crtc->funcs->set_config(&set);
1523
1524 out:
1525         kfree(connector_set);
1526         mutex_unlock(&dev->mode_config.mutex);
1527         return ret;
1528 }
1529
1530 int drm_mode_cursor_ioctl(struct drm_device *dev,
1531                         void *data, struct drm_file *file_priv)
1532 {
1533         struct drm_mode_cursor *req = data;
1534         struct drm_mode_object *obj;
1535         struct drm_crtc *crtc;
1536         int ret = 0;
1537
1538         DRM_DEBUG("\n");
1539
1540         if (!req->flags) {
1541                 DRM_ERROR("no operation set\n");
1542                 return -EINVAL;
1543         }
1544
1545         mutex_lock(&dev->mode_config.mutex);
1546         obj = drm_mode_object_find(dev, req->crtc, DRM_MODE_OBJECT_CRTC);
1547         if (!obj) {
1548                 DRM_DEBUG("Unknown CRTC ID %d\n", req->crtc);
1549                 ret = -EINVAL;
1550                 goto out;
1551         }
1552         crtc = obj_to_crtc(obj);
1553
1554         if (req->flags & DRM_MODE_CURSOR_BO) {
1555                 if (!crtc->funcs->cursor_set) {
1556                         DRM_ERROR("crtc does not support cursor\n");
1557                         ret = -ENXIO;
1558                         goto out;
1559                 }
1560                 /* Turns off the cursor if handle is 0 */
1561                 ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle,
1562                                               req->width, req->height);
1563         }
1564
1565         if (req->flags & DRM_MODE_CURSOR_MOVE) {
1566                 if (crtc->funcs->cursor_move) {
1567                         ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
1568                 } else {
1569                         DRM_ERROR("crtc does not support cursor\n");
1570                         ret = -EFAULT;
1571                         goto out;
1572                 }
1573         }
1574 out:
1575         mutex_unlock(&dev->mode_config.mutex);
1576         return ret;
1577 }
1578
1579 /**
1580  * drm_mode_addfb - add an FB to the graphics configuration
1581  * @inode: inode from the ioctl
1582  * @filp: file * from the ioctl
1583  * @cmd: cmd from ioctl
1584  * @arg: arg from ioctl
1585  *
1586  * LOCKING:
1587  * Takes mode config lock.
1588  *
1589  * Add a new FB to the specified CRTC, given a user request.
1590  *
1591  * Called by the user via ioctl.
1592  *
1593  * RETURNS:
1594  * Zero on success, errno on failure.
1595  */
1596 int drm_mode_addfb(struct drm_device *dev,
1597                    void *data, struct drm_file *file_priv)
1598 {
1599         struct drm_mode_fb_cmd *r = data;
1600         struct drm_mode_config *config = &dev->mode_config;
1601         struct drm_framebuffer *fb;
1602         int ret = 0;
1603
1604         if ((config->min_width > r->width) || (r->width > config->max_width)) {
1605                 DRM_ERROR("mode new framebuffer width not within limits\n");
1606                 return -EINVAL;
1607         }
1608         if ((config->min_height > r->height) || (r->height > config->max_height)) {
1609                 DRM_ERROR("mode new framebuffer height not within limits\n");
1610                 return -EINVAL;
1611         }
1612
1613         mutex_lock(&dev->mode_config.mutex);
1614
1615         /* TODO check buffer is sufficently large */
1616         /* TODO setup destructor callback */
1617
1618         fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
1619         if (!fb) {
1620                 DRM_ERROR("could not create framebuffer\n");
1621                 ret = -EINVAL;
1622                 goto out;
1623         }
1624
1625         r->buffer_id = fb->base.id;
1626         list_add(&fb->filp_head, &file_priv->fbs);
1627
1628 out:
1629         mutex_unlock(&dev->mode_config.mutex);
1630         return ret;
1631 }
1632
1633 /**
1634  * drm_mode_rmfb - remove an FB from the configuration
1635  * @inode: inode from the ioctl
1636  * @filp: file * from the ioctl
1637  * @cmd: cmd from ioctl
1638  * @arg: arg from ioctl
1639  *
1640  * LOCKING:
1641  * Takes mode config lock.
1642  *
1643  * Remove the FB specified by the user.
1644  *
1645  * Called by the user via ioctl.
1646  *
1647  * RETURNS:
1648  * Zero on success, errno on failure.
1649  */
1650 int drm_mode_rmfb(struct drm_device *dev,
1651                    void *data, struct drm_file *file_priv)
1652 {
1653         struct drm_mode_object *obj;
1654         struct drm_framebuffer *fb = NULL;
1655         struct drm_framebuffer *fbl = NULL;
1656         uint32_t *id = data;
1657         int ret = 0;
1658         int found = 0;
1659
1660         mutex_lock(&dev->mode_config.mutex);
1661         obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB);
1662         /* TODO check that we realy get a framebuffer back. */
1663         if (!obj) {
1664                 DRM_ERROR("mode invalid framebuffer id\n");
1665                 ret = -EINVAL;
1666                 goto out;
1667         }
1668         fb = obj_to_fb(obj);
1669
1670         list_for_each_entry(fbl, &file_priv->fbs, filp_head)
1671                 if (fb == fbl)
1672                         found = 1;
1673
1674         if (!found) {
1675                 DRM_ERROR("tried to remove a fb that we didn't own\n");
1676                 ret = -EINVAL;
1677                 goto out;
1678         }
1679
1680         /* TODO release all crtc connected to the framebuffer */
1681         /* TODO unhock the destructor from the buffer object */
1682
1683         list_del(&fb->filp_head);
1684         fb->funcs->destroy(fb);
1685
1686 out:
1687         mutex_unlock(&dev->mode_config.mutex);
1688         return ret;
1689 }
1690
1691 /**
1692  * drm_mode_getfb - get FB info
1693  * @inode: inode from the ioctl
1694  * @filp: file * from the ioctl
1695  * @cmd: cmd from ioctl
1696  * @arg: arg from ioctl
1697  *
1698  * LOCKING:
1699  * Caller? (FIXME)
1700  *
1701  * Lookup the FB given its ID and return info about it.
1702  *
1703  * Called by the user via ioctl.
1704  *
1705  * RETURNS:
1706  * Zero on success, errno on failure.
1707  */
1708 int drm_mode_getfb(struct drm_device *dev,
1709                    void *data, struct drm_file *file_priv)
1710 {
1711         struct drm_mode_fb_cmd *r = data;
1712         struct drm_mode_object *obj;
1713         struct drm_framebuffer *fb;
1714         int ret = 0;
1715
1716         mutex_lock(&dev->mode_config.mutex);
1717         obj = drm_mode_object_find(dev, r->buffer_id, DRM_MODE_OBJECT_FB);
1718         if (!obj) {
1719                 DRM_ERROR("invalid framebuffer id\n");
1720                 ret = -EINVAL;
1721                 goto out;
1722         }
1723         fb = obj_to_fb(obj);
1724
1725         r->height = fb->height;
1726         r->width = fb->width;
1727         r->depth = fb->depth;
1728         r->bpp = fb->bits_per_pixel;
1729         r->pitch = fb->pitch;
1730         fb->funcs->create_handle(fb, file_priv, &r->handle);
1731
1732 out:
1733         mutex_unlock(&dev->mode_config.mutex);
1734         return ret;
1735 }
1736
1737 /**
1738  * drm_fb_release - remove and free the FBs on this file
1739  * @filp: file * from the ioctl
1740  *
1741  * LOCKING:
1742  * Takes mode config lock.
1743  *
1744  * Destroy all the FBs associated with @filp.
1745  *
1746  * Called by the user via ioctl.
1747  *
1748  * RETURNS:
1749  * Zero on success, errno on failure.
1750  */
1751 void drm_fb_release(struct file *filp)
1752 {
1753         struct drm_file *priv = filp->private_data;
1754         struct drm_device *dev = priv->minor->dev;
1755         struct drm_framebuffer *fb, *tfb;
1756
1757         mutex_lock(&dev->mode_config.mutex);
1758         list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
1759                 list_del(&fb->filp_head);
1760                 fb->funcs->destroy(fb);
1761         }
1762         mutex_unlock(&dev->mode_config.mutex);
1763 }
1764
1765 /**
1766  * drm_mode_attachmode - add a mode to the user mode list
1767  * @dev: DRM device
1768  * @connector: connector to add the mode to
1769  * @mode: mode to add
1770  *
1771  * Add @mode to @connector's user mode list.
1772  */
1773 static int drm_mode_attachmode(struct drm_device *dev,
1774                                struct drm_connector *connector,
1775                                struct drm_display_mode *mode)
1776 {
1777         int ret = 0;
1778
1779         list_add_tail(&mode->head, &connector->user_modes);
1780         return ret;
1781 }
1782
1783 int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc,
1784                              struct drm_display_mode *mode)
1785 {
1786         struct drm_connector *connector;
1787         int ret = 0;
1788         struct drm_display_mode *dup_mode;
1789         int need_dup = 0;
1790         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1791                 if (!connector->encoder)
1792                         break;
1793                 if (connector->encoder->crtc == crtc) {
1794                         if (need_dup)
1795                                 dup_mode = drm_mode_duplicate(dev, mode);
1796                         else
1797                                 dup_mode = mode;
1798                         ret = drm_mode_attachmode(dev, connector, dup_mode);
1799                         if (ret)
1800                                 return ret;
1801                         need_dup = 1;
1802                 }
1803         }
1804         return 0;
1805 }
1806 EXPORT_SYMBOL(drm_mode_attachmode_crtc);
1807
1808 static int drm_mode_detachmode(struct drm_device *dev,
1809                                struct drm_connector *connector,
1810                                struct drm_display_mode *mode)
1811 {
1812         int found = 0;
1813         int ret = 0;
1814         struct drm_display_mode *match_mode, *t;
1815
1816         list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) {
1817                 if (drm_mode_equal(match_mode, mode)) {
1818                         list_del(&match_mode->head);
1819                         drm_mode_destroy(dev, match_mode);
1820                         found = 1;
1821                         break;
1822                 }
1823         }
1824
1825         if (!found)
1826                 ret = -EINVAL;
1827
1828         return ret;
1829 }
1830
1831 int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode)
1832 {
1833         struct drm_connector *connector;
1834
1835         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
1836                 drm_mode_detachmode(dev, connector, mode);
1837         }
1838         return 0;
1839 }
1840 EXPORT_SYMBOL(drm_mode_detachmode_crtc);
1841
1842 /**
1843  * drm_fb_attachmode - Attach a user mode to an connector
1844  * @inode: inode from the ioctl
1845  * @filp: file * from the ioctl
1846  * @cmd: cmd from ioctl
1847  * @arg: arg from ioctl
1848  *
1849  * This attaches a user specified mode to an connector.
1850  * Called by the user via ioctl.
1851  *
1852  * RETURNS:
1853  * Zero on success, errno on failure.
1854  */
1855 int drm_mode_attachmode_ioctl(struct drm_device *dev,
1856                               void *data, struct drm_file *file_priv)
1857 {
1858         struct drm_mode_mode_cmd *mode_cmd = data;
1859         struct drm_connector *connector;
1860         struct drm_display_mode *mode;
1861         struct drm_mode_object *obj;
1862         struct drm_mode_modeinfo *umode = &mode_cmd->mode;
1863         int ret = 0;
1864
1865         mutex_lock(&dev->mode_config.mutex);
1866
1867         obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
1868         if (!obj) {
1869                 ret = -EINVAL;
1870                 goto out;
1871         }
1872         connector = obj_to_connector(obj);
1873
1874         mode = drm_mode_create(dev);
1875         if (!mode) {
1876                 ret = -ENOMEM;
1877                 goto out;
1878         }
1879
1880         drm_crtc_convert_umode(mode, umode);
1881
1882         ret = drm_mode_attachmode(dev, connector, mode);
1883 out:
1884         mutex_unlock(&dev->mode_config.mutex);
1885         return ret;
1886 }
1887
1888
1889 /**
1890  * drm_fb_detachmode - Detach a user specified mode from an connector
1891  * @inode: inode from the ioctl
1892  * @filp: file * from the ioctl
1893  * @cmd: cmd from ioctl
1894  * @arg: arg from ioctl
1895  *
1896  * Called by the user via ioctl.
1897  *
1898  * RETURNS:
1899  * Zero on success, errno on failure.
1900  */
1901 int drm_mode_detachmode_ioctl(struct drm_device *dev,
1902                               void *data, struct drm_file *file_priv)
1903 {
1904         struct drm_mode_object *obj;
1905         struct drm_mode_mode_cmd *mode_cmd = data;
1906         struct drm_connector *connector;
1907         struct drm_display_mode mode;
1908         struct drm_mode_modeinfo *umode = &mode_cmd->mode;
1909         int ret = 0;
1910
1911         mutex_lock(&dev->mode_config.mutex);
1912
1913         obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR);
1914         if (!obj) {
1915                 ret = -EINVAL;
1916                 goto out;
1917         }
1918         connector = obj_to_connector(obj);
1919
1920         drm_crtc_convert_umode(&mode, umode);
1921         ret = drm_mode_detachmode(dev, connector, &mode);
1922 out:
1923         mutex_unlock(&dev->mode_config.mutex);
1924         return ret;
1925 }
1926
1927 struct drm_property *drm_property_create(struct drm_device *dev, int flags,
1928                                          const char *name, int num_values)
1929 {
1930         struct drm_property *property = NULL;
1931
1932         property = kzalloc(sizeof(struct drm_property), GFP_KERNEL);
1933         if (!property)
1934                 return NULL;
1935
1936         if (num_values) {
1937                 property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL);
1938                 if (!property->values)
1939                         goto fail;
1940         }
1941
1942         drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY);
1943         property->flags = flags;
1944         property->num_values = num_values;
1945         INIT_LIST_HEAD(&property->enum_blob_list);
1946
1947         if (name)
1948                 strncpy(property->name, name, DRM_PROP_NAME_LEN);
1949
1950         list_add_tail(&property->head, &dev->mode_config.property_list);
1951         return property;
1952 fail:
1953         kfree(property);
1954         return NULL;
1955 }
1956 EXPORT_SYMBOL(drm_property_create);
1957
1958 int drm_property_add_enum(struct drm_property *property, int index,
1959                           uint64_t value, const char *name)
1960 {
1961         struct drm_property_enum *prop_enum;
1962
1963         if (!(property->flags & DRM_MODE_PROP_ENUM))
1964                 return -EINVAL;
1965
1966         if (!list_empty(&property->enum_blob_list)) {
1967                 list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
1968                         if (prop_enum->value == value) {
1969                                 strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
1970                                 prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
1971                                 return 0;
1972                         }
1973                 }
1974         }
1975
1976         prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL);
1977         if (!prop_enum)
1978                 return -ENOMEM;
1979
1980         strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN);
1981         prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0';
1982         prop_enum->value = value;
1983
1984         property->values[index] = value;
1985         list_add_tail(&prop_enum->head, &property->enum_blob_list);
1986         return 0;
1987 }
1988 EXPORT_SYMBOL(drm_property_add_enum);
1989
1990 void drm_property_destroy(struct drm_device *dev, struct drm_property *property)
1991 {
1992         struct drm_property_enum *prop_enum, *pt;
1993
1994         list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) {
1995                 list_del(&prop_enum->head);
1996                 kfree(prop_enum);
1997         }
1998
1999         if (property->num_values)
2000                 kfree(property->values);
2001         drm_mode_object_put(dev, &property->base);
2002         list_del(&property->head);
2003         kfree(property);
2004 }
2005 EXPORT_SYMBOL(drm_property_destroy);
2006
2007 int drm_connector_attach_property(struct drm_connector *connector,
2008                                struct drm_property *property, uint64_t init_val)
2009 {
2010         int i;
2011
2012         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2013                 if (connector->property_ids[i] == 0) {
2014                         connector->property_ids[i] = property->base.id;
2015                         connector->property_values[i] = init_val;
2016                         break;
2017                 }
2018         }
2019
2020         if (i == DRM_CONNECTOR_MAX_PROPERTY)
2021                 return -EINVAL;
2022         return 0;
2023 }
2024 EXPORT_SYMBOL(drm_connector_attach_property);
2025
2026 int drm_connector_property_set_value(struct drm_connector *connector,
2027                                   struct drm_property *property, uint64_t value)
2028 {
2029         int i;
2030
2031         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2032                 if (connector->property_ids[i] == property->base.id) {
2033                         connector->property_values[i] = value;
2034                         break;
2035                 }
2036         }
2037
2038         if (i == DRM_CONNECTOR_MAX_PROPERTY)
2039                 return -EINVAL;
2040         return 0;
2041 }
2042 EXPORT_SYMBOL(drm_connector_property_set_value);
2043
2044 int drm_connector_property_get_value(struct drm_connector *connector,
2045                                   struct drm_property *property, uint64_t *val)
2046 {
2047         int i;
2048
2049         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2050                 if (connector->property_ids[i] == property->base.id) {
2051                         *val = connector->property_values[i];
2052                         break;
2053                 }
2054         }
2055
2056         if (i == DRM_CONNECTOR_MAX_PROPERTY)
2057                 return -EINVAL;
2058         return 0;
2059 }
2060 EXPORT_SYMBOL(drm_connector_property_get_value);
2061
2062 int drm_mode_getproperty_ioctl(struct drm_device *dev,
2063                                void *data, struct drm_file *file_priv)
2064 {
2065         struct drm_mode_object *obj;
2066         struct drm_mode_get_property *out_resp = data;
2067         struct drm_property *property;
2068         int enum_count = 0;
2069         int blob_count = 0;
2070         int value_count = 0;
2071         int ret = 0, i;
2072         int copied;
2073         struct drm_property_enum *prop_enum;
2074         struct drm_mode_property_enum __user *enum_ptr;
2075         struct drm_property_blob *prop_blob;
2076         uint32_t *blob_id_ptr;
2077         uint64_t __user *values_ptr;
2078         uint32_t __user *blob_length_ptr;
2079
2080         mutex_lock(&dev->mode_config.mutex);
2081         obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2082         if (!obj) {
2083                 ret = -EINVAL;
2084                 goto done;
2085         }
2086         property = obj_to_property(obj);
2087
2088         if (property->flags & DRM_MODE_PROP_ENUM) {
2089                 list_for_each_entry(prop_enum, &property->enum_blob_list, head)
2090                         enum_count++;
2091         } else if (property->flags & DRM_MODE_PROP_BLOB) {
2092                 list_for_each_entry(prop_blob, &property->enum_blob_list, head)
2093                         blob_count++;
2094         }
2095
2096         value_count = property->num_values;
2097
2098         strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN);
2099         out_resp->name[DRM_PROP_NAME_LEN-1] = 0;
2100         out_resp->flags = property->flags;
2101
2102         if ((out_resp->count_values >= value_count) && value_count) {
2103                 values_ptr = (uint64_t *)(unsigned long)out_resp->values_ptr;
2104                 for (i = 0; i < value_count; i++) {
2105                         if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
2106                                 ret = -EFAULT;
2107                                 goto done;
2108                         }
2109                 }
2110         }
2111         out_resp->count_values = value_count;
2112
2113         if (property->flags & DRM_MODE_PROP_ENUM) {
2114                 if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
2115                         copied = 0;
2116                         enum_ptr = (struct drm_mode_property_enum *)(unsigned long)out_resp->enum_blob_ptr;
2117                         list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
2118
2119                                 if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
2120                                         ret = -EFAULT;
2121                                         goto done;
2122                                 }
2123
2124                                 if (copy_to_user(&enum_ptr[copied].name,
2125                                                  &prop_enum->name, DRM_PROP_NAME_LEN)) {
2126                                         ret = -EFAULT;
2127                                         goto done;
2128                                 }
2129                                 copied++;
2130                         }
2131                 }
2132                 out_resp->count_enum_blobs = enum_count;
2133         }
2134
2135         if (property->flags & DRM_MODE_PROP_BLOB) {
2136                 if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
2137                         copied = 0;
2138                         blob_id_ptr = (uint32_t *)(unsigned long)out_resp->enum_blob_ptr;
2139                         blob_length_ptr = (uint32_t *)(unsigned long)out_resp->values_ptr;
2140
2141                         list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
2142                                 if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
2143                                         ret = -EFAULT;
2144                                         goto done;
2145                                 }
2146
2147                                 if (put_user(prop_blob->length, blob_length_ptr + copied)) {
2148                                         ret = -EFAULT;
2149                                         goto done;
2150                                 }
2151
2152                                 copied++;
2153                         }
2154                 }
2155                 out_resp->count_enum_blobs = blob_count;
2156         }
2157 done:
2158         mutex_unlock(&dev->mode_config.mutex);
2159         return ret;
2160 }
2161
2162 static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length,
2163                                                           void *data)
2164 {
2165         struct drm_property_blob *blob;
2166
2167         if (!length || !data)
2168                 return NULL;
2169
2170         blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL);
2171         if (!blob)
2172                 return NULL;
2173
2174         blob->data = (void *)((char *)blob + sizeof(struct drm_property_blob));
2175         blob->length = length;
2176
2177         memcpy(blob->data, data, length);
2178
2179         drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB);
2180
2181         list_add_tail(&blob->head, &dev->mode_config.property_blob_list);
2182         return blob;
2183 }
2184
2185 static void drm_property_destroy_blob(struct drm_device *dev,
2186                                struct drm_property_blob *blob)
2187 {
2188         drm_mode_object_put(dev, &blob->base);
2189         list_del(&blob->head);
2190         kfree(blob);
2191 }
2192
2193 int drm_mode_getblob_ioctl(struct drm_device *dev,
2194                            void *data, struct drm_file *file_priv)
2195 {
2196         struct drm_mode_object *obj;
2197         struct drm_mode_get_blob *out_resp = data;
2198         struct drm_property_blob *blob;
2199         int ret = 0;
2200         void *blob_ptr;
2201
2202         mutex_lock(&dev->mode_config.mutex);
2203         obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB);
2204         if (!obj) {
2205                 ret = -EINVAL;
2206                 goto done;
2207         }
2208         blob = obj_to_blob(obj);
2209
2210         if (out_resp->length == blob->length) {
2211                 blob_ptr = (void *)(unsigned long)out_resp->data;
2212                 if (copy_to_user(blob_ptr, blob->data, blob->length)){
2213                         ret = -EFAULT;
2214                         goto done;
2215                 }
2216         }
2217         out_resp->length = blob->length;
2218
2219 done:
2220         mutex_unlock(&dev->mode_config.mutex);
2221         return ret;
2222 }
2223
2224 int drm_mode_connector_update_edid_property(struct drm_connector *connector,
2225                                             struct edid *edid)
2226 {
2227         struct drm_device *dev = connector->dev;
2228         int ret = 0;
2229
2230         if (connector->edid_blob_ptr)
2231                 drm_property_destroy_blob(dev, connector->edid_blob_ptr);
2232
2233         /* Delete edid, when there is none. */
2234         if (!edid) {
2235                 connector->edid_blob_ptr = NULL;
2236                 ret = drm_connector_property_set_value(connector, dev->mode_config.edid_property, 0);
2237                 return ret;
2238         }
2239
2240         connector->edid_blob_ptr = drm_property_create_blob(connector->dev, 128, edid);
2241
2242         ret = drm_connector_property_set_value(connector,
2243                                                dev->mode_config.edid_property,
2244                                                connector->edid_blob_ptr->base.id);
2245
2246         return ret;
2247 }
2248 EXPORT_SYMBOL(drm_mode_connector_update_edid_property);
2249
2250 int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
2251                                        void *data, struct drm_file *file_priv)
2252 {
2253         struct drm_mode_connector_set_property *out_resp = data;
2254         struct drm_mode_object *obj;
2255         struct drm_property *property;
2256         struct drm_connector *connector;
2257         int ret = -EINVAL;
2258         int i;
2259
2260         mutex_lock(&dev->mode_config.mutex);
2261
2262         obj = drm_mode_object_find(dev, out_resp->connector_id, DRM_MODE_OBJECT_CONNECTOR);
2263         if (!obj) {
2264                 goto out;
2265         }
2266         connector = obj_to_connector(obj);
2267
2268         for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
2269                 if (connector->property_ids[i] == out_resp->prop_id)
2270                         break;
2271         }
2272
2273         if (i == DRM_CONNECTOR_MAX_PROPERTY) {
2274                 goto out;
2275         }
2276
2277         obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY);
2278         if (!obj) {
2279                 goto out;
2280         }
2281         property = obj_to_property(obj);
2282
2283         if (property->flags & DRM_MODE_PROP_IMMUTABLE)
2284                 goto out;
2285
2286         if (property->flags & DRM_MODE_PROP_RANGE) {
2287                 if (out_resp->value < property->values[0])
2288                         goto out;
2289
2290                 if (out_resp->value > property->values[1])
2291                         goto out;
2292         } else {
2293                 int found = 0;
2294                 for (i = 0; i < property->num_values; i++) {
2295                         if (property->values[i] == out_resp->value) {
2296                                 found = 1;
2297                                 break;
2298                         }
2299                 }
2300                 if (!found) {
2301                         goto out;
2302                 }
2303         }
2304
2305         if (connector->funcs->set_property)
2306                 ret = connector->funcs->set_property(connector, property, out_resp->value);
2307
2308         /* store the property value if succesful */
2309         if (!ret)
2310                 drm_connector_property_set_value(connector, property, out_resp->value);
2311 out:
2312         mutex_unlock(&dev->mode_config.mutex);
2313         return ret;
2314 }
2315
2316
2317 int drm_mode_replacefb(struct drm_device *dev,
2318                        void *data, struct drm_file *file_priv)
2319 {
2320         struct drm_mode_fb_cmd *r = data;
2321         struct drm_mode_object *obj;
2322         struct drm_framebuffer *fb;
2323         int found = 0;
2324         struct drm_framebuffer *fbl = NULL;
2325         int ret = 0;
2326
2327         /* right replace the current bo attached to this fb with a new bo */
2328         mutex_lock(&dev->mode_config.mutex);
2329         obj = drm_mode_object_find(dev, r->buffer_id, DRM_MODE_OBJECT_FB);
2330         if (!obj) {
2331                 ret = -EINVAL;
2332                 goto out;
2333         }
2334         fb = obj_to_fb(obj);
2335
2336         list_for_each_entry(fbl, &file_priv->fbs, filp_head)
2337                 if (fb == fbl)
2338                         found = 1;
2339
2340         if (!found) {
2341                 DRM_ERROR("tried to replace an fb we didn't own\n");
2342                 ret = -EINVAL;
2343                 goto out;
2344         }
2345
2346         if (dev->mode_config.funcs->resize_fb)
2347                 ret = dev->mode_config.funcs->resize_fb(dev, file_priv, fb, r);
2348         else
2349                 ret = -EINVAL;
2350 out:
2351         mutex_unlock(&dev->mode_config.mutex);
2352         return ret;
2353
2354 }
2355
2356 int drm_mode_connector_attach_encoder(struct drm_connector *connector,
2357                                       struct drm_encoder *encoder)
2358 {
2359         int i;
2360
2361         for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
2362                 if (connector->encoder_ids[i] == 0) {
2363                         connector->encoder_ids[i] = encoder->base.id;
2364                         return 0;
2365                 }
2366         }
2367         return -ENOMEM;
2368 }
2369 EXPORT_SYMBOL(drm_mode_connector_attach_encoder);
2370
2371 void drm_mode_connector_detach_encoder(struct drm_connector *connector,
2372                                     struct drm_encoder *encoder)
2373 {
2374         int i;
2375         for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
2376                 if (connector->encoder_ids[i] == encoder->base.id) {
2377                         connector->encoder_ids[i] = 0;
2378                         if (connector->encoder == encoder)
2379                                 connector->encoder = NULL;
2380                         break;
2381                 }
2382         }
2383 }
2384 EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
2385
2386 bool drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
2387                                   int gamma_size)
2388 {
2389         crtc->gamma_size = gamma_size;
2390
2391         crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
2392         if (!crtc->gamma_store) {
2393                 crtc->gamma_size = 0;
2394                 return false;
2395         }
2396
2397         return true;
2398 }
2399 EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
2400
2401 int drm_mode_gamma_set_ioctl(struct drm_device *dev,
2402                              void *data, struct drm_file *file_priv)
2403 {
2404         struct drm_mode_crtc_lut *crtc_lut = data;
2405         struct drm_mode_object *obj;
2406         struct drm_crtc *crtc;
2407         void *r_base, *g_base, *b_base;
2408         int size;
2409         int ret = 0;
2410
2411         mutex_lock(&dev->mode_config.mutex);
2412         obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
2413         if (!obj) {
2414                 ret = -EINVAL;
2415                 goto out;
2416         }
2417         crtc = obj_to_crtc(obj);
2418
2419         /* memcpy into gamma store */
2420         if (crtc_lut->gamma_size != crtc->gamma_size) {
2421                 ret = -EINVAL;
2422                 goto out;
2423         }
2424
2425         size = crtc_lut->gamma_size * (sizeof(uint16_t));
2426         r_base = crtc->gamma_store;
2427         if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
2428                 ret = -EFAULT;
2429                 goto out;
2430         }
2431
2432         g_base = r_base + size;
2433         if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
2434                 ret = -EFAULT;
2435                 goto out;
2436         }
2437
2438         b_base = g_base + size;
2439         if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
2440                 ret = -EFAULT;
2441                 goto out;
2442         }
2443
2444         crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, crtc->gamma_size);
2445
2446 out:
2447         mutex_unlock(&dev->mode_config.mutex);
2448         return ret;
2449
2450 }
2451
2452 int drm_mode_gamma_get_ioctl(struct drm_device *dev,
2453                              void *data, struct drm_file *file_priv)
2454 {
2455         struct drm_mode_crtc_lut *crtc_lut = data;
2456         struct drm_mode_object *obj;
2457         struct drm_crtc *crtc;
2458         void *r_base, *g_base, *b_base;
2459         int size;
2460         int ret = 0;
2461
2462         mutex_lock(&dev->mode_config.mutex);
2463         obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC);
2464         if (!obj) {
2465                 ret = -EINVAL;
2466                 goto out;
2467         }
2468         crtc = obj_to_crtc(obj);
2469
2470         /* memcpy into gamma store */
2471         if (crtc_lut->gamma_size != crtc->gamma_size) {
2472                 ret = -EINVAL;
2473                 goto out;
2474         }
2475
2476         size = crtc_lut->gamma_size * (sizeof(uint16_t));
2477         r_base = crtc->gamma_store;
2478         if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
2479                 ret = -EFAULT;
2480                 goto out;
2481         }
2482
2483         g_base = r_base + size;
2484         if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
2485                 ret = -EFAULT;
2486                 goto out;
2487         }
2488
2489         b_base = g_base + size;
2490         if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
2491                 ret = -EFAULT;
2492                 goto out;
2493         }
2494 out:
2495         mutex_unlock(&dev->mode_config.mutex);
2496         return ret;
2497 }