include/drm/drm_crtc.h

   1 /*
   2  * Copyright © 2006 Keith Packard
   3  * Copyright © 2007-2008 Dave Airlie
   4  * Copyright © 2007-2008 Intel Corporation
   5  *   Jesse Barnes <jesse.barnes@intel.com>
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included in
  15  * all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  21  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  22  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  23  * OTHER DEALINGS IN THE SOFTWARE.
  24  */
  25 #ifndef __DRM_CRTC_H__
  26 #define __DRM_CRTC_H__
  27
  28 #include <linux/i2c.h>
  29 #include <linux/spinlock.h>
  30 #include <linux/types.h>
  31 #include <linux/idr.h>
  32
  33 #include <linux/fb.h>
  34
  35 struct drm_device;
  36 struct drm_mode_set;
  37 struct drm_framebuffer;
  38
  39
  40 #define DRM_MODE_OBJECT_CRTC 0xcccccccc
  41 #define DRM_MODE_OBJECT_CONNECTOR 0xc0c0c0c0
  42 #define DRM_MODE_OBJECT_ENCODER 0xe0e0e0e0
  43 #define DRM_MODE_OBJECT_MODE 0xdededede
  44 #define DRM_MODE_OBJECT_PROPERTY 0xb0b0b0b0
  45 #define DRM_MODE_OBJECT_FB 0xfbfbfbfb
  46 #define DRM_MODE_OBJECT_BLOB 0xbbbbbbbb
  47
  48 struct drm_mode_object {
  49         uint32_t id;
  50         uint32_t type;
  51 };
  52
  53 /*
  54  * Note on terminology:  here, for brevity and convenience, we refer to connector
  55  * control chips as 'CRTCs'.  They can control any type of connector, VGA, LVDS,
  56  * DVI, etc.  And 'screen' refers to the whole of the visible display, which
  57  * may span multiple monitors (and therefore multiple CRTC and connector
  58  * structures).
  59  */
  60
  61 enum drm_mode_status {
  62     MODE_OK     = 0,    /* Mode OK */
  63     MODE_HSYNC,         /* hsync out of range */
  64     MODE_VSYNC,         /* vsync out of range */
  65     MODE_H_ILLEGAL,     /* mode has illegal horizontal timings */
  66     MODE_V_ILLEGAL,     /* mode has illegal horizontal timings */
  67     MODE_BAD_WIDTH,     /* requires an unsupported linepitch */
  68     MODE_NOMODE,        /* no mode with a maching name */
  69     MODE_NO_INTERLACE,  /* interlaced mode not supported */
  70     MODE_NO_DBLESCAN,   /* doublescan mode not supported */
  71     MODE_NO_VSCAN,      /* multiscan mode not supported */
  72     MODE_MEM,           /* insufficient video memory */
  73     MODE_VIRTUAL_X,     /* mode width too large for specified virtual size */
  74     MODE_VIRTUAL_Y,     /* mode height too large for specified virtual size */
  75     MODE_MEM_VIRT,      /* insufficient video memory given virtual size */
  76     MODE_NOCLOCK,       /* no fixed clock available */
  77     MODE_CLOCK_HIGH,    /* clock required is too high */
  78     MODE_CLOCK_LOW,     /* clock required is too low */
  79     MODE_CLOCK_RANGE,   /* clock/mode isn't in a ClockRange */
  80     MODE_BAD_HVALUE,    /* horizontal timing was out of range */
  81     MODE_BAD_VVALUE,    /* vertical timing was out of range */
  82     MODE_BAD_VSCAN,     /* VScan value out of range */
  83     MODE_HSYNC_NARROW,  /* horizontal sync too narrow */
  84     MODE_HSYNC_WIDE,    /* horizontal sync too wide */
  85     MODE_HBLANK_NARROW, /* horizontal blanking too narrow */
  86     MODE_HBLANK_WIDE,   /* horizontal blanking too wide */
  87     MODE_VSYNC_NARROW,  /* vertical sync too narrow */
  88     MODE_VSYNC_WIDE,    /* vertical sync too wide */
  89     MODE_VBLANK_NARROW, /* vertical blanking too narrow */
  90     MODE_VBLANK_WIDE,   /* vertical blanking too wide */
  91     MODE_PANEL,         /* exceeds panel dimensions */
  92     MODE_INTERLACE_WIDTH, /* width too large for interlaced mode */
  93     MODE_ONE_WIDTH,     /* only one width is supported */
  94     MODE_ONE_HEIGHT,    /* only one height is supported */
  95     MODE_ONE_SIZE,      /* only one resolution is supported */
  96     MODE_NO_REDUCED,    /* monitor doesn't accept reduced blanking */
  97     MODE_UNVERIFIED = -3, /* mode needs to reverified */
  98     MODE_BAD = -2,      /* unspecified reason */
  99     MODE_ERROR  = -1    /* error condition */
 100 };
 101
 102 #define DRM_MODE_TYPE_CLOCK_CRTC_C (DRM_MODE_TYPE_CLOCK_C | \
 103                                     DRM_MODE_TYPE_CRTC_C)
 104
 105 #define DRM_MODE(nm, t, c, hd, hss, hse, ht, hsk, vd, vss, vse, vt, vs, f) \
 106         .name = nm, .status = 0, .type = (t), .clock = (c), \
 107         .hdisplay = (hd), .hsync_start = (hss), .hsync_end = (hse), \
 108         .htotal = (ht), .hskew = (hsk), .vdisplay = (vd), \
 109         .vsync_start = (vss), .vsync_end = (vse), .vtotal = (vt), \
 110         .vscan = (vs), .flags = (f), .vrefresh = 0
 111
 112 #define CRTC_INTERLACE_HALVE_V 0x1 /* halve V values for interlacing */
 113
 114 struct drm_display_mode {
 115         /* Header */
 116         struct list_head head;
 117         struct drm_mode_object base;
 118
 119         char name[DRM_DISPLAY_MODE_LEN];
 120
 121         int connector_count;
 122         enum drm_mode_status status;
 123         int type;
 124
 125         /* Proposed mode values */
 126         int clock;
 127         int hdisplay;
 128         int hsync_start;
 129         int hsync_end;
 130         int htotal;
 131         int hskew;
 132         int vdisplay;
 133         int vsync_start;
 134         int vsync_end;
 135         int vtotal;
 136         int vscan;
 137         unsigned int flags;
 138
 139         /* Addressable image size (may be 0 for projectors, etc.) */
 140         int width_mm;
 141         int height_mm;
 142
 143         /* Actual mode we give to hw */
 144         int clock_index;
 145         int synth_clock;
 146         int crtc_hdisplay;
 147         int crtc_hblank_start;
 148         int crtc_hblank_end;
 149         int crtc_hsync_start;
 150         int crtc_hsync_end;
 151         int crtc_htotal;
 152         int crtc_hskew;
 153         int crtc_vdisplay;
 154         int crtc_vblank_start;
 155         int crtc_vblank_end;
 156         int crtc_vsync_start;
 157         int crtc_vsync_end;
 158         int crtc_vtotal;
 159         int crtc_hadjusted;
 160         int crtc_vadjusted;
 161
 162         /* Driver private mode info */
 163         int private_size;
 164         int *private;
 165         int private_flags;
 166
 167         int vrefresh;
 168         float hsync;
 169 };
 170
 171 enum drm_connector_status {
 172         connector_status_connected = 1,
 173         connector_status_disconnected = 2,
 174         connector_status_unknown = 3,
 175 };
 176
 177 enum subpixel_order {
 178         SubPixelUnknown = 0,
 179         SubPixelHorizontalRGB,
 180         SubPixelHorizontalBGR,
 181         SubPixelVerticalRGB,
 182         SubPixelVerticalBGR,
 183         SubPixelNone,
 184 };
 185
 186
 187 /*
 188  * Describes a given display (e.g. CRT or flat panel) and its limitations.
 189  */
 190 struct drm_display_info {
 191         char name[DRM_DISPLAY_INFO_LEN];
 192         /* Input info */
 193         bool serration_vsync;
 194         bool sync_on_green;
 195         bool composite_sync;
 196         bool separate_syncs;
 197         bool blank_to_black;
 198         unsigned char video_level;
 199         bool digital;
 200         /* Physical size */
 201         unsigned int width_mm;
 202         unsigned int height_mm;
 203
 204         /* Display parameters */
 205         unsigned char gamma; /* FIXME: storage format */
 206         bool gtf_supported;
 207         bool standard_color;
 208         enum {
 209                 monochrome = 0,
 210                 rgb,
 211                 other,
 212                 unknown,
 213         } display_type;
 214         bool active_off_supported;
 215         bool suspend_supported;
 216         bool standby_supported;
 217
 218         /* Color info FIXME: storage format */
 219         unsigned short redx, redy;
 220         unsigned short greenx, greeny;
 221         unsigned short bluex, bluey;
 222         unsigned short whitex, whitey;
 223
 224         /* Clock limits FIXME: storage format */
 225         unsigned int min_vfreq, max_vfreq;
 226         unsigned int min_hfreq, max_hfreq;
 227         unsigned int pixel_clock;
 228
 229         /* White point indices FIXME: storage format */
 230         unsigned int wpx1, wpy1;
 231         unsigned int wpgamma1;
 232         unsigned int wpx2, wpy2;
 233         unsigned int wpgamma2;
 234
 235         enum subpixel_order subpixel_order;
 236
 237         char *raw_edid; /* if any */
 238 };
 239
 240 struct drm_framebuffer_funcs {
 241         void (*destroy)(struct drm_framebuffer *framebuffer);
 242         int (*create_handle)(struct drm_framebuffer *fb,
 243                              struct drm_file *file_priv,
 244                              unsigned int *handle);
 245 };
 246
 247 struct drm_framebuffer {
 248         struct drm_device *dev;
 249         struct list_head head;
 250         struct drm_mode_object base;
 251         const struct drm_framebuffer_funcs *funcs;
 252         unsigned int pitch;
 253         unsigned int width;
 254         unsigned int height;
 255         /* depth can be 15 or 16 */
 256         unsigned int depth;
 257         int bits_per_pixel;
 258         int flags;
 259         void *fbdev;
 260         u32 pseudo_palette[17];
 261         struct list_head filp_head;
 262 };
 263
 264 struct drm_property_blob {
 265         struct drm_mode_object base;
 266         struct list_head head;
 267         unsigned int length;
 268         void *data;
 269 };
 270
 271 struct drm_property_enum {
 272         uint64_t value;
 273         struct list_head head;
 274         char name[DRM_PROP_NAME_LEN];
 275 };
 276
 277 struct drm_property {
 278         struct list_head head;
 279         struct drm_mode_object base;
 280         uint32_t flags;
 281         char name[DRM_PROP_NAME_LEN];
 282         uint32_t num_values;
 283         uint64_t *values;
 284
 285         struct list_head enum_blob_list;
 286 };
 287
 288 struct drm_crtc;
 289 struct drm_connector;
 290 struct drm_encoder;
 291
 292 /**
 293  * drm_crtc_funcs - control CRTCs for a given device
 294  * @dpms: control display power levels
 295  * @save: save CRTC state
 296  * @resore: restore CRTC state
 297  * @lock: lock the CRTC
 298  * @unlock: unlock the CRTC
 299  * @shadow_allocate: allocate shadow pixmap
 300  * @shadow_create: create shadow pixmap for rotation support
 301  * @shadow_destroy: free shadow pixmap
 302  * @mode_fixup: fixup proposed mode
 303  * @mode_set: set the desired mode on the CRTC
 304  * @gamma_set: specify color ramp for CRTC
 305  * @destroy: deinit and free object.
 306  *
 307  * The drm_crtc_funcs structure is the central CRTC management structure
 308  * in the DRM.  Each CRTC controls one or more connectors (note that the name
 309  * CRTC is simply historical, a CRTC may control LVDS, VGA, DVI, TV out, etc.
 310  * connectors, not just CRTs).
 311  *
 312  * Each driver is responsible for filling out this structure at startup time,
 313  * in addition to providing other modesetting features, like i2c and DDC
 314  * bus accessors.
 315  */
 316 struct drm_crtc_funcs {
 317         /* Save CRTC state */
 318         void (*save)(struct drm_crtc *crtc); /* suspend? */
 319         /* Restore CRTC state */
 320         void (*restore)(struct drm_crtc *crtc); /* resume? */
 321
 322         /* cursor controls */
 323         int (*cursor_set)(struct drm_crtc *crtc, struct drm_file *file_priv,
 324                           uint32_t handle, uint32_t width, uint32_t height);
 325         int (*cursor_move)(struct drm_crtc *crtc, int x, int y);
 326
 327         /* Set gamma on the CRTC */
 328         void (*gamma_set)(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b,
 329                           uint32_t size);
 330         /* Object destroy routine */
 331         void (*destroy)(struct drm_crtc *crtc);
 332
 333         int (*set_config)(struct drm_mode_set *set);
 334 };
 335
 336 /**
 337  * drm_crtc - central CRTC control structure
 338  * @enabled: is this CRTC enabled?
 339  * @x: x position on screen
 340  * @y: y position on screen
 341  * @desired_mode: new desired mode
 342  * @desired_x: desired x for desired_mode
 343  * @desired_y: desired y for desired_mode
 344  * @funcs: CRTC control functions
 345  *
 346  * Each CRTC may have one or more connectors associated with it.  This structure
 347  * allows the CRTC to be controlled.
 348  */
 349 struct drm_crtc {
 350         struct drm_device *dev;
 351         struct list_head head;
 352
 353         struct drm_mode_object base;
 354
 355         /* framebuffer the connector is currently bound to */
 356         struct drm_framebuffer *fb;
 357
 358         bool enabled;
 359
 360         struct drm_display_mode mode;
 361
 362         int x, y;
 363         struct drm_display_mode *desired_mode;
 364         int desired_x, desired_y;
 365         const struct drm_crtc_funcs *funcs;
 366
 367         /* CRTC gamma size for reporting to userspace */
 368         uint32_t gamma_size;
 369         uint16_t *gamma_store;
 370
 371         /* if you are using the helper */
 372         void *helper_private;
 373 };
 374
 375
 376 /**
 377  * drm_connector_funcs - control connectors on a given device
 378  * @dpms: set power state (see drm_crtc_funcs above)
 379  * @save: save connector state
 380  * @restore: restore connector state
 381  * @mode_valid: is this mode valid on the given connector?
 382  * @mode_fixup: try to fixup proposed mode for this connector
 383  * @mode_set: set this mode
 384  * @detect: is this connector active?
 385  * @get_modes: get mode list for this connector
 386  * @set_property: property for this connector may need update
 387  * @destroy: make object go away
 388  *
 389  * Each CRTC may have one or more connectors attached to it.  The functions
 390  * below allow the core DRM code to control connectors, enumerate available modes,
 391  * etc.
 392  */
 393 struct drm_connector_funcs {
 394         void (*dpms)(struct drm_connector *connector, int mode);
 395         void (*save)(struct drm_connector *connector);
 396         void (*restore)(struct drm_connector *connector);
 397         enum drm_connector_status (*detect)(struct drm_connector *connector);
 398         int (*fill_modes)(struct drm_connector *connector, uint32_t max_width, uint32_t max_height);
 399         int (*set_property)(struct drm_connector *connector, struct drm_property *property,
 400                              uint64_t val);
 401         void (*destroy)(struct drm_connector *connector);
 402 };
 403
 404 struct drm_encoder_funcs {
 405         void (*destroy)(struct drm_encoder *encoder);
 406 };
 407
 408 #define DRM_CONNECTOR_MAX_UMODES 16
 409 #define DRM_CONNECTOR_MAX_PROPERTY 16
 410 #define DRM_CONNECTOR_LEN 32
 411 #define DRM_CONNECTOR_MAX_ENCODER 2
 412
 413 /**
 414  * drm_encoder - central DRM encoder structure
 415  */
 416 struct drm_encoder {
 417         struct drm_device *dev;
 418         struct list_head head;
 419
 420         struct drm_mode_object base;
 421         int encoder_type;
 422         uint32_t possible_crtcs;
 423         uint32_t possible_clones;
 424
 425         struct drm_crtc *crtc;
 426         const struct drm_encoder_funcs *funcs;
 427         void *helper_private;
 428 };
 429
 430 /**
 431  * drm_connector - central DRM connector control structure
 432  * @crtc: CRTC this connector is currently connected to, NULL if none
 433  * @interlace_allowed: can this connector handle interlaced modes?
 434  * @doublescan_allowed: can this connector handle doublescan?
 435  * @available_modes: modes available on this connector (from get_modes() + user)
 436  * @initial_x: initial x position for this connector
 437  * @initial_y: initial y position for this connector
 438  * @status: connector connected?
 439  * @funcs: connector control functions
 440  *
 441  * Each connector may be connected to one or more CRTCs, or may be clonable by
 442  * another connector if they can share a CRTC.  Each connector also has a specific
 443  * position in the broader display (referred to as a 'screen' though it could
 444  * span multiple monitors).
 445  */
 446 struct drm_connector {
 447         struct drm_device *dev;
 448         struct device kdev;
 449         struct device_attribute *attr;
 450         struct list_head head;
 451
 452         struct drm_mode_object base;
 453
 454         int connector_type;
 455         int connector_type_id;
 456         bool interlace_allowed;
 457         bool doublescan_allowed;
 458         struct list_head modes; /* list of modes on this connector */
 459
 460         int initial_x, initial_y;
 461         enum drm_connector_status status;
 462
 463         /* these are modes added by probing with DDC or the BIOS */
 464         struct list_head probed_modes;
 465
 466         struct drm_display_info display_info;
 467         const struct drm_connector_funcs *funcs;
 468
 469         struct list_head user_modes;
 470         struct drm_property_blob *edid_blob_ptr;
 471         u32 property_ids[DRM_CONNECTOR_MAX_PROPERTY];
 472         uint64_t property_values[DRM_CONNECTOR_MAX_PROPERTY];
 473
 474         void *helper_private;
 475
 476         uint32_t encoder_ids[DRM_CONNECTOR_MAX_ENCODER];
 477         uint32_t force_encoder_id;
 478         struct drm_encoder *encoder; /* currently active encoder */
 479 };
 480
 481 /**
 482  * struct drm_mode_set
 483  *
 484  * Represents a single crtc the connectors that it drives with what mode
 485  * and from which framebuffer it scans out from.
 486  *
 487  * This is used to set modes.
 488  */
 489 struct drm_mode_set {
 490         struct list_head head;
 491
 492         struct drm_framebuffer *fb;
 493         struct drm_crtc *crtc;
 494         struct drm_display_mode *mode;
 495
 496         uint32_t x;
 497         uint32_t y;
 498
 499         struct drm_connector **connectors;
 500         size_t num_connectors;
 501 };
 502
 503 /**
 504  * struct drm_mode_config_funcs - configure CRTCs for a given screen layout
 505  * @resize: adjust CRTCs as necessary for the proposed layout
 506  *
 507  * Currently only a resize hook is available.  DRM will call back into the
 508  * driver with a new screen width and height.  If the driver can't support
 509  * the proposed size, it can return false.  Otherwise it should adjust
 510  * the CRTC<->connector mappings as needed and update its view of the screen.
 511  */
 512 struct drm_mode_config_funcs {
 513         struct drm_framebuffer *(*fb_create)(struct drm_device *dev, struct drm_file *file_priv, struct drm_mode_fb_cmd *mode_cmd);
 514         int (*fb_changed)(struct drm_device *dev);
 515 };
 516
 517 struct drm_mode_group {
 518         uint32_t num_crtcs;
 519         uint32_t num_encoders;
 520         uint32_t num_connectors;
 521
 522         /* list of object IDs for this group */
 523         uint32_t *id_list;
 524 };
 525
 526 /**
 527  * drm_mode_config - Mode configuration control structure
 528  *
 529  */
 530 struct drm_mode_config {
 531         struct mutex mutex; /* protects configuration (mode lists etc.) */
 532         struct mutex idr_mutex; /* for IDR management */
 533         struct idr crtc_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */
 534         /* this is limited to one for now */
 535         int num_fb;
 536         struct list_head fb_list;
 537         int num_connector;
 538         struct list_head connector_list;
 539         int num_encoder;
 540         struct list_head encoder_list;
 541
 542         int num_crtc;
 543         struct list_head crtc_list;
 544
 545         struct list_head property_list;
 546
 547         /* in-kernel framebuffers - hung of filp_head in drm_framebuffer */
 548         struct list_head fb_kernel_list;
 549
 550         int min_width, min_height;
 551         int max_width, max_height;
 552         struct drm_mode_config_funcs *funcs;
 553         unsigned long fb_base;
 554
 555         /* pointers to standard properties */
 556         struct list_head property_blob_list;
 557         struct drm_property *edid_property;
 558         struct drm_property *dpms_property;
 559
 560         /* DVI-I properties */
 561         struct drm_property *dvi_i_subconnector_property;
 562         struct drm_property *dvi_i_select_subconnector_property;
 563
 564         /* TV properties */
 565         struct drm_property *tv_subconnector_property;
 566         struct drm_property *tv_select_subconnector_property;
 567         struct drm_property *tv_mode_property;
 568         struct drm_property *tv_left_margin_property;
 569         struct drm_property *tv_right_margin_property;
 570         struct drm_property *tv_top_margin_property;
 571         struct drm_property *tv_bottom_margin_property;
 572
 573         /* Optional properties */
 574         struct drm_property *scaling_mode_property;
 575         struct drm_property *dithering_mode_property;
 576 };
 577
 578 #define obj_to_crtc(x) container_of(x, struct drm_crtc, base)
 579 #define obj_to_connector(x) container_of(x, struct drm_connector, base)
 580 #define obj_to_encoder(x) container_of(x, struct drm_encoder, base)
 581 #define obj_to_mode(x) container_of(x, struct drm_display_mode, base)
 582 #define obj_to_fb(x) container_of(x, struct drm_framebuffer, base)
 583 #define obj_to_property(x) container_of(x, struct drm_property, base)
 584 #define obj_to_blob(x) container_of(x, struct drm_property_blob, base)
 585
 586
 587 extern void drm_crtc_init(struct drm_device *dev,
 588                           struct drm_crtc *crtc,
 589                           const struct drm_crtc_funcs *funcs);
 590 extern void drm_crtc_cleanup(struct drm_crtc *crtc);
 591
 592 extern void drm_connector_init(struct drm_device *dev,
 593                             struct drm_connector *connector,
 594                             const struct drm_connector_funcs *funcs,
 595                             int connector_type);
 596
 597 extern void drm_connector_cleanup(struct drm_connector *connector);
 598
 599 extern void drm_encoder_init(struct drm_device *dev,
 600                              struct drm_encoder *encoder,
 601                              const struct drm_encoder_funcs *funcs,
 602                              int encoder_type);
 603
 604 extern void drm_encoder_cleanup(struct drm_encoder *encoder);
 605
 606 extern char *drm_get_connector_name(struct drm_connector *connector);
 607 extern char *drm_get_dpms_name(int val);
 608 extern char *drm_get_dvi_i_subconnector_name(int val);
 609 extern char *drm_get_dvi_i_select_name(int val);
 610 extern char *drm_get_tv_subconnector_name(int val);
 611 extern char *drm_get_tv_select_name(int val);
 612 extern void drm_fb_release(struct file *filp);
 613 extern int drm_mode_group_init_legacy_group(struct drm_device *dev, struct drm_mode_group *group);
 614 extern struct edid *drm_get_edid(struct drm_connector *connector,
 615                                  struct i2c_adapter *adapter);
 616 extern unsigned char *drm_do_probe_ddc_edid(struct i2c_adapter *adapter);
 617 extern int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid);
 618 extern void drm_mode_probed_add(struct drm_connector *connector, struct drm_display_mode *mode);
 619 extern void drm_mode_remove(struct drm_connector *connector, struct drm_display_mode *mode);
 620 extern struct drm_display_mode *drm_mode_duplicate(struct drm_device *dev,
 621                                                    struct drm_display_mode *mode);
 622 extern void drm_mode_debug_printmodeline(struct drm_display_mode *mode);
 623 extern void drm_mode_config_init(struct drm_device *dev);
 624 extern void drm_mode_config_cleanup(struct drm_device *dev);
 625 extern void drm_mode_set_name(struct drm_display_mode *mode);
 626 extern bool drm_mode_equal(struct drm_display_mode *mode1, struct drm_display_mode *mode2);
 627 extern int drm_mode_width(struct drm_display_mode *mode);
 628 extern int drm_mode_height(struct drm_display_mode *mode);
 629
 630 /* for us by fb module */
 631 extern int drm_mode_attachmode_crtc(struct drm_device *dev,
 632                                     struct drm_crtc *crtc,
 633                                     struct drm_display_mode *mode);
 634 extern int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode);
 635
 636 extern struct drm_display_mode *drm_mode_create(struct drm_device *dev);
 637 extern void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode);
 638 extern void drm_mode_list_concat(struct list_head *head,
 639                                  struct list_head *new);
 640 extern void drm_mode_validate_size(struct drm_device *dev,
 641                                    struct list_head *mode_list,
 642                                    int maxX, int maxY, int maxPitch);
 643 extern void drm_mode_prune_invalid(struct drm_device *dev,
 644                                    struct list_head *mode_list, bool verbose);
 645 extern void drm_mode_sort(struct list_head *mode_list);
 646 extern int drm_mode_vrefresh(struct drm_display_mode *mode);
 647 extern void drm_mode_set_crtcinfo(struct drm_display_mode *p,
 648                                   int adjust_flags);
 649 extern void drm_mode_connector_list_update(struct drm_connector *connector);
 650 extern int drm_mode_connector_update_edid_property(struct drm_connector *connector,
 651                                                 struct edid *edid);
 652 extern int drm_connector_property_set_value(struct drm_connector *connector,
 653                                          struct drm_property *property,
 654                                          uint64_t value);
 655 extern int drm_connector_property_get_value(struct drm_connector *connector,
 656                                          struct drm_property *property,
 657                                          uint64_t *value);
 658 extern struct drm_display_mode *drm_crtc_mode_create(struct drm_device *dev);
 659 extern void drm_framebuffer_set_object(struct drm_device *dev,
 660                                        unsigned long handle);
 661 extern int drm_framebuffer_init(struct drm_device *dev,
 662                                 struct drm_framebuffer *fb,
 663                                 const struct drm_framebuffer_funcs *funcs);
 664 extern void drm_framebuffer_cleanup(struct drm_framebuffer *fb);
 665 extern int drmfb_probe(struct drm_device *dev, struct drm_crtc *crtc);
 666 extern int drmfb_remove(struct drm_device *dev, struct drm_framebuffer *fb);
 667 extern void drm_crtc_probe_connector_modes(struct drm_device *dev, int maxX, int maxY);
 668 extern bool drm_crtc_in_use(struct drm_crtc *crtc);
 669
 670 extern int drm_connector_attach_property(struct drm_connector *connector,
 671                                       struct drm_property *property, uint64_t init_val);
 672 extern struct drm_property *drm_property_create(struct drm_device *dev, int flags,
 673                                                 const char *name, int num_values);
 674 extern void drm_property_destroy(struct drm_device *dev, struct drm_property *property);
 675 extern int drm_property_add_enum(struct drm_property *property, int index,
 676                                  uint64_t value, const char *name);
 677 extern int drm_mode_create_dvi_i_properties(struct drm_device *dev);
 678 extern int drm_mode_create_tv_properties(struct drm_device *dev, int num_formats,
 679                                      char *formats[]);
 680 extern int drm_mode_create_scaling_mode_property(struct drm_device *dev);
 681 extern int drm_mode_create_dithering_property(struct drm_device *dev);
 682 extern char *drm_get_encoder_name(struct drm_encoder *encoder);
 683
 684 extern int drm_mode_connector_attach_encoder(struct drm_connector *connector,
 685                                              struct drm_encoder *encoder);
 686 extern void drm_mode_connector_detach_encoder(struct drm_connector *connector,
 687                                            struct drm_encoder *encoder);
 688 extern bool drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
 689                                          int gamma_size);
 690 extern void *drm_mode_object_find(struct drm_device *dev, uint32_t id, uint32_t type);
 691 /* IOCTLs */
 692 extern int drm_mode_getresources(struct drm_device *dev,
 693                                  void *data, struct drm_file *file_priv);
 694
 695 extern int drm_mode_getcrtc(struct drm_device *dev,
 696                             void *data, struct drm_file *file_priv);
 697 extern int drm_mode_getconnector(struct drm_device *dev,
 698                               void *data, struct drm_file *file_priv);
 699 extern int drm_mode_setcrtc(struct drm_device *dev,
 700                             void *data, struct drm_file *file_priv);
 701 extern int drm_mode_cursor_ioctl(struct drm_device *dev,
 702                                 void *data, struct drm_file *file_priv);
 703 extern int drm_mode_addfb(struct drm_device *dev,
 704                           void *data, struct drm_file *file_priv);
 705 extern int drm_mode_rmfb(struct drm_device *dev,
 706                          void *data, struct drm_file *file_priv);
 707 extern int drm_mode_getfb(struct drm_device *dev,
 708                           void *data, struct drm_file *file_priv);
 709 extern int drm_mode_addmode_ioctl(struct drm_device *dev,
 710                                   void *data, struct drm_file *file_priv);
 711 extern int drm_mode_rmmode_ioctl(struct drm_device *dev,
 712                                  void *data, struct drm_file *file_priv);
 713 extern int drm_mode_attachmode_ioctl(struct drm_device *dev,
 714                                      void *data, struct drm_file *file_priv);
 715 extern int drm_mode_detachmode_ioctl(struct drm_device *dev,
 716                                      void *data, struct drm_file *file_priv);
 717
 718 extern int drm_mode_getproperty_ioctl(struct drm_device *dev,
 719                                       void *data, struct drm_file *file_priv);
 720 extern int drm_mode_getblob_ioctl(struct drm_device *dev,
 721                                   void *data, struct drm_file *file_priv);
 722 extern int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
 723                                               void *data, struct drm_file *file_priv);
 724 extern int drm_mode_hotplug_ioctl(struct drm_device *dev,
 725                                   void *data, struct drm_file *file_priv);
 726 extern int drm_mode_replacefb(struct drm_device *dev,
 727                               void *data, struct drm_file *file_priv);
 728 extern int drm_mode_getencoder(struct drm_device *dev,
 729                                void *data, struct drm_file *file_priv);
 730 extern int drm_mode_gamma_get_ioctl(struct drm_device *dev,
 731                                     void *data, struct drm_file *file_priv);
 732 extern int drm_mode_gamma_set_ioctl(struct drm_device *dev,
 733                                     void *data, struct drm_file *file_priv);
 734 #endif /* __DRM_CRTC_H__ */