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 #include <linux/fb.h>
  33 #include <linux/hdmi.h>
  34 #include <uapi/drm/drm_mode.h>
  35 #include <uapi/drm/drm_fourcc.h>
  36 #include <drm/drm_modeset_lock.h>
  37
  38 struct drm_device;
  39 struct drm_mode_set;
  40 struct drm_framebuffer;
  41 struct drm_object_properties;
  42 struct drm_file;
  43 struct drm_clip_rect;
  44 struct device_node;
  45 struct fence;
  46
  47 #define DRM_MODE_OBJECT_CRTC 0xcccccccc
  48 #define DRM_MODE_OBJECT_CONNECTOR 0xc0c0c0c0
  49 #define DRM_MODE_OBJECT_ENCODER 0xe0e0e0e0
  50 #define DRM_MODE_OBJECT_MODE 0xdededede
  51 #define DRM_MODE_OBJECT_PROPERTY 0xb0b0b0b0
  52 #define DRM_MODE_OBJECT_FB 0xfbfbfbfb
  53 #define DRM_MODE_OBJECT_BLOB 0xbbbbbbbb
  54 #define DRM_MODE_OBJECT_PLANE 0xeeeeeeee
  55 #define DRM_MODE_OBJECT_BRIDGE 0xbdbdbdbd
  56 #define DRM_MODE_OBJECT_ANY 0
  57
  58 struct drm_mode_object {
  59         uint32_t id;
  60         uint32_t type;
  61         struct drm_object_properties *properties;
  62 };
  63
  64 #define DRM_OBJECT_MAX_PROPERTY 24
  65 struct drm_object_properties {
  66         int count;
  67         uint32_t ids[DRM_OBJECT_MAX_PROPERTY];
  68         uint64_t values[DRM_OBJECT_MAX_PROPERTY];
  69 };
  70
  71 static inline int64_t U642I64(uint64_t val)
  72 {
  73         return (int64_t)*((int64_t *)&val);
  74 }
  75 static inline uint64_t I642U64(int64_t val)
  76 {
  77         return (uint64_t)*((uint64_t *)&val);
  78 }
  79
  80 /* rotation property bits */
  81 #define DRM_ROTATE_0    0
  82 #define DRM_ROTATE_90   1
  83 #define DRM_ROTATE_180  2
  84 #define DRM_ROTATE_270  3
  85 #define DRM_REFLECT_X   4
  86 #define DRM_REFLECT_Y   5
  87
  88 enum drm_connector_force {
  89         DRM_FORCE_UNSPECIFIED,
  90         DRM_FORCE_OFF,
  91         DRM_FORCE_ON,         /* force on analog part normally */
  92         DRM_FORCE_ON_DIGITAL, /* for DVI-I use digital connector */
  93 };
  94
  95 #include <drm/drm_modes.h>
  96
  97 enum drm_connector_status {
  98         connector_status_connected = 1,
  99         connector_status_disconnected = 2,
 100         connector_status_unknown = 3,
 101 };
 102
 103 enum subpixel_order {
 104         SubPixelUnknown = 0,
 105         SubPixelHorizontalRGB,
 106         SubPixelHorizontalBGR,
 107         SubPixelVerticalRGB,
 108         SubPixelVerticalBGR,
 109         SubPixelNone,
 110 };
 111
 112 #define DRM_COLOR_FORMAT_RGB444         (1<<0)
 113 #define DRM_COLOR_FORMAT_YCRCB444       (1<<1)
 114 #define DRM_COLOR_FORMAT_YCRCB422       (1<<2)
 115 /*
 116  * Describes a given display (e.g. CRT or flat panel) and its limitations.
 117  */
 118 struct drm_display_info {
 119         char name[DRM_DISPLAY_INFO_LEN];
 120
 121         /* Physical size */
 122         unsigned int width_mm;
 123         unsigned int height_mm;
 124
 125         /* Clock limits FIXME: storage format */
 126         unsigned int min_vfreq, max_vfreq;
 127         unsigned int min_hfreq, max_hfreq;
 128         unsigned int pixel_clock;
 129         unsigned int bpc;
 130
 131         enum subpixel_order subpixel_order;
 132         u32 color_formats;
 133
 134         /* Mask of supported hdmi deep color modes */
 135         u8 edid_hdmi_dc_modes;
 136
 137         u8 cea_rev;
 138 };
 139
 140 /* data corresponds to displayid vend/prod/serial */
 141 struct drm_tile_group {
 142         struct kref refcount;
 143         struct drm_device *dev;
 144         int id;
 145         u8 group_data[8];
 146 };
 147
 148 struct drm_framebuffer_funcs {
 149         /* note: use drm_framebuffer_remove() */
 150         void (*destroy)(struct drm_framebuffer *framebuffer);
 151         int (*create_handle)(struct drm_framebuffer *fb,
 152                              struct drm_file *file_priv,
 153                              unsigned int *handle);
 154         /*
 155          * Optional callback for the dirty fb ioctl.
 156          *
 157          * Userspace can notify the driver via this callback
 158          * that a area of the framebuffer has changed and should
 159          * be flushed to the display hardware.
 160          *
 161          * See documentation in drm_mode.h for the struct
 162          * drm_mode_fb_dirty_cmd for more information as all
 163          * the semantics and arguments have a one to one mapping
 164          * on this function.
 165          */
 166         int (*dirty)(struct drm_framebuffer *framebuffer,
 167                      struct drm_file *file_priv, unsigned flags,
 168                      unsigned color, struct drm_clip_rect *clips,
 169                      unsigned num_clips);
 170 };
 171
 172 struct drm_framebuffer {
 173         struct drm_device *dev;
 174         /*
 175          * Note that the fb is refcounted for the benefit of driver internals,
 176          * for example some hw, disabling a CRTC/plane is asynchronous, and
 177          * scanout does not actually complete until the next vblank.  So some
 178          * cleanup (like releasing the reference(s) on the backing GEM bo(s))
 179          * should be deferred.  In cases like this, the driver would like to
 180          * hold a ref to the fb even though it has already been removed from
 181          * userspace perspective.
 182          */
 183         struct kref refcount;
 184         /*
 185          * Place on the dev->mode_config.fb_list, access protected by
 186          * dev->mode_config.fb_lock.
 187          */
 188         struct list_head head;
 189         struct drm_mode_object base;
 190         const struct drm_framebuffer_funcs *funcs;
 191         unsigned int pitches[4];
 192         unsigned int offsets[4];
 193         unsigned int width;
 194         unsigned int height;
 195         /* depth can be 15 or 16 */
 196         unsigned int depth;
 197         int bits_per_pixel;
 198         int flags;
 199         uint32_t pixel_format; /* fourcc format */
 200         struct list_head filp_head;
 201         /* if you are using the helper */
 202         void *helper_private;
 203 };
 204
 205 struct drm_property_blob {
 206         struct drm_mode_object base;
 207         struct list_head head;
 208         size_t length;
 209         unsigned char data[];
 210 };
 211
 212 struct drm_property_enum {
 213         uint64_t value;
 214         struct list_head head;
 215         char name[DRM_PROP_NAME_LEN];
 216 };
 217
 218 struct drm_property {
 219         struct list_head head;
 220         struct drm_mode_object base;
 221         uint32_t flags;
 222         char name[DRM_PROP_NAME_LEN];
 223         uint32_t num_values;
 224         uint64_t *values;
 225         struct drm_device *dev;
 226
 227         struct list_head enum_list;
 228 };
 229
 230 struct drm_crtc;
 231 struct drm_connector;
 232 struct drm_encoder;
 233 struct drm_pending_vblank_event;
 234 struct drm_plane;
 235 struct drm_bridge;
 236 struct drm_atomic_state;
 237
 238 /**
 239  * struct drm_crtc_state - mutable CRTC state
 240  * @enable: whether the CRTC should be enabled, gates all other state
 241  * @mode_changed: for use by helpers and drivers when computing state updates
 242  * @plane_mask: bitmask of (1 << drm_plane_index(plane)) of attached planes
 243  * @last_vblank_count: for helpers and drivers to capture the vblank of the
 244  *      update to ensure framebuffer cleanup isn't done too early
 245  * @planes_changed: for use by helpers and drivers when computing state updates
 246  * @adjusted_mode: for use by helpers and drivers to compute adjusted mode timings
 247  * @mode: current mode timings
 248  * @event: optional pointer to a DRM event to signal upon completion of the
 249  *      state update
 250  * @state: backpointer to global drm_atomic_state
 251  */
 252 struct drm_crtc_state {
 253         bool enable;
 254
 255         /* computed state bits used by helpers and drivers */
 256         bool planes_changed : 1;
 257         bool mode_changed : 1;
 258
 259         /* attached planes bitmask:
 260          * WARNING: transitional helpers do not maintain plane_mask so
 261          * drivers not converted over to atomic helpers should not rely
 262          * on plane_mask being accurate!
 263          */
 264         u32 plane_mask;
 265
 266         /* last_vblank_count: for vblank waits before cleanup */
 267         u32 last_vblank_count;
 268
 269         /* adjusted_mode: for use by helpers and drivers */
 270         struct drm_display_mode adjusted_mode;
 271
 272         struct drm_display_mode mode;
 273
 274         struct drm_pending_vblank_event *event;
 275
 276         struct drm_atomic_state *state;
 277 };
 278
 279 /**
 280  * struct drm_crtc_funcs - control CRTCs for a given device
 281  * @save: save CRTC state
 282  * @restore: restore CRTC state
 283  * @reset: reset CRTC after state has been invalidated (e.g. resume)
 284  * @cursor_set: setup the cursor
 285  * @cursor_set2: setup the cursor with hotspot, superseeds @cursor_set if set
 286  * @cursor_move: move the cursor
 287  * @gamma_set: specify color ramp for CRTC
 288  * @destroy: deinit and free object
 289  * @set_property: called when a property is changed
 290  * @set_config: apply a new CRTC configuration
 291  * @page_flip: initiate a page flip
 292  * @atomic_duplicate_state: duplicate the atomic state for this CRTC
 293  * @atomic_destroy_state: destroy an atomic state for this CRTC
 294  * @atomic_set_property: set a property on an atomic state for this CRTC
 295  *
 296  * The drm_crtc_funcs structure is the central CRTC management structure
 297  * in the DRM.  Each CRTC controls one or more connectors (note that the name
 298  * CRTC is simply historical, a CRTC may control LVDS, VGA, DVI, TV out, etc.
 299  * connectors, not just CRTs).
 300  *
 301  * Each driver is responsible for filling out this structure at startup time,
 302  * in addition to providing other modesetting features, like i2c and DDC
 303  * bus accessors.
 304  */
 305 struct drm_crtc_funcs {
 306         /* Save CRTC state */
 307         void (*save)(struct drm_crtc *crtc); /* suspend? */
 308         /* Restore CRTC state */
 309         void (*restore)(struct drm_crtc *crtc); /* resume? */
 310         /* Reset CRTC state */
 311         void (*reset)(struct drm_crtc *crtc);
 312
 313         /* cursor controls */
 314         int (*cursor_set)(struct drm_crtc *crtc, struct drm_file *file_priv,
 315                           uint32_t handle, uint32_t width, uint32_t height);
 316         int (*cursor_set2)(struct drm_crtc *crtc, struct drm_file *file_priv,
 317                            uint32_t handle, uint32_t width, uint32_t height,
 318                            int32_t hot_x, int32_t hot_y);
 319         int (*cursor_move)(struct drm_crtc *crtc, int x, int y);
 320
 321         /* Set gamma on the CRTC */
 322         void (*gamma_set)(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b,
 323                           uint32_t start, uint32_t size);
 324         /* Object destroy routine */
 325         void (*destroy)(struct drm_crtc *crtc);
 326
 327         int (*set_config)(struct drm_mode_set *set);
 328
 329         /*
 330          * Flip to the given framebuffer.  This implements the page
 331          * flip ioctl described in drm_mode.h, specifically, the
 332          * implementation must return immediately and block all
 333          * rendering to the current fb until the flip has completed.
 334          * If userspace set the event flag in the ioctl, the event
 335          * argument will point to an event to send back when the flip
 336          * completes, otherwise it will be NULL.
 337          */
 338         int (*page_flip)(struct drm_crtc *crtc,
 339                          struct drm_framebuffer *fb,
 340                          struct drm_pending_vblank_event *event,
 341                          uint32_t flags);
 342
 343         int (*set_property)(struct drm_crtc *crtc,
 344                             struct drm_property *property, uint64_t val);
 345
 346         /* atomic update handling */
 347         struct drm_crtc_state *(*atomic_duplicate_state)(struct drm_crtc *crtc);
 348         void (*atomic_destroy_state)(struct drm_crtc *crtc,
 349                                      struct drm_crtc_state *state);
 350         int (*atomic_set_property)(struct drm_crtc *crtc,
 351                                    struct drm_crtc_state *state,
 352                                    struct drm_property *property,
 353                                    uint64_t val);
 354 };
 355
 356 /**
 357  * struct drm_crtc - central CRTC control structure
 358  * @dev: parent DRM device
 359  * @port: OF node used by drm_of_find_possible_crtcs()
 360  * @head: list management
 361  * @mutex: per-CRTC locking
 362  * @base: base KMS object for ID tracking etc.
 363  * @primary: primary plane for this CRTC
 364  * @cursor: cursor plane for this CRTC
 365  * @cursor_x: current x position of the cursor, used for universal cursor planes
 366  * @cursor_y: current y position of the cursor, used for universal cursor planes
 367  * @enabled: is this CRTC enabled?
 368  * @mode: current mode timings
 369  * @hwmode: mode timings as programmed to hw regs
 370  * @invert_dimensions: for purposes of error checking crtc vs fb sizes,
 371  *    invert the width/height of the crtc.  This is used if the driver
 372  *    is performing 90 or 270 degree rotated scanout
 373  * @x: x position on screen
 374  * @y: y position on screen
 375  * @funcs: CRTC control functions
 376  * @gamma_size: size of gamma ramp
 377  * @gamma_store: gamma ramp values
 378  * @framedur_ns: precise frame timing
 379  * @linedur_ns: precise line timing
 380  * @pixeldur_ns: precise pixel timing
 381  * @helper_private: mid-layer private data
 382  * @properties: property tracking for this CRTC
 383  * @state: current atomic state for this CRTC
 384  * @acquire_ctx: per-CRTC implicit acquire context used by atomic drivers for
 385  *      legacy ioctls
 386  *
 387  * Each CRTC may have one or more connectors associated with it.  This structure
 388  * allows the CRTC to be controlled.
 389  */
 390 struct drm_crtc {
 391         struct drm_device *dev;
 392         struct device_node *port;
 393         struct list_head head;
 394
 395         /*
 396          * crtc mutex
 397          *
 398          * This provides a read lock for the overall crtc state (mode, dpms
 399          * state, ...) and a write lock for everything which can be update
 400          * without a full modeset (fb, cursor data, ...)
 401          */
 402         struct drm_modeset_lock mutex;
 403
 404         struct drm_mode_object base;
 405
 406         /* primary and cursor planes for CRTC */
 407         struct drm_plane *primary;
 408         struct drm_plane *cursor;
 409
 410         /* position of cursor plane on crtc */
 411         int cursor_x;
 412         int cursor_y;
 413
 414         bool enabled;
 415
 416         /* Requested mode from modesetting. */
 417         struct drm_display_mode mode;
 418
 419         /* Programmed mode in hw, after adjustments for encoders,
 420          * crtc, panel scaling etc. Needed for timestamping etc.
 421          */
 422         struct drm_display_mode hwmode;
 423
 424         bool invert_dimensions;
 425
 426         int x, y;
 427         const struct drm_crtc_funcs *funcs;
 428
 429         /* CRTC gamma size for reporting to userspace */
 430         uint32_t gamma_size;
 431         uint16_t *gamma_store;
 432
 433         /* Constants needed for precise vblank and swap timestamping. */
 434         int framedur_ns, linedur_ns, pixeldur_ns;
 435
 436         /* if you are using the helper */
 437         void *helper_private;
 438
 439         struct drm_object_properties properties;
 440
 441         struct drm_crtc_state *state;
 442
 443         /*
 444          * For legacy crtc ioctls so that atomic drivers can get at the locking
 445          * acquire context.
 446          */
 447         struct drm_modeset_acquire_ctx *acquire_ctx;
 448 };
 449
 450 /**
 451  * struct drm_connector_state - mutable connector state
 452  * @crtc: CRTC to connect connector to, NULL if disabled
 453  * @best_encoder: can be used by helpers and drivers to select the encoder
 454  * @state: backpointer to global drm_atomic_state
 455  */
 456 struct drm_connector_state {
 457         struct drm_crtc *crtc;  /* do not write directly, use drm_atomic_set_crtc_for_connector() */
 458
 459         struct drm_encoder *best_encoder;
 460
 461         struct drm_atomic_state *state;
 462 };
 463
 464 /**
 465  * struct drm_connector_funcs - control connectors on a given device
 466  * @dpms: set power state (see drm_crtc_funcs above)
 467  * @save: save connector state
 468  * @restore: restore connector state
 469  * @reset: reset connector after state has been invalidated (e.g. resume)
 470  * @detect: is this connector active?
 471  * @fill_modes: fill mode list for this connector
 472  * @set_property: property for this connector may need an update
 473  * @destroy: make object go away
 474  * @force: notify the driver that the connector is forced on
 475  * @atomic_duplicate_state: duplicate the atomic state for this connector
 476  * @atomic_destroy_state: destroy an atomic state for this connector
 477  * @atomic_set_property: set a property on an atomic state for this connector
 478  *
 479  * Each CRTC may have one or more connectors attached to it.  The functions
 480  * below allow the core DRM code to control connectors, enumerate available modes,
 481  * etc.
 482  */
 483 struct drm_connector_funcs {
 484         void (*dpms)(struct drm_connector *connector, int mode);
 485         void (*save)(struct drm_connector *connector);
 486         void (*restore)(struct drm_connector *connector);
 487         void (*reset)(struct drm_connector *connector);
 488
 489         /* Check to see if anything is attached to the connector.
 490          * @force is set to false whilst polling, true when checking the
 491          * connector due to user request. @force can be used by the driver
 492          * to avoid expensive, destructive operations during automated
 493          * probing.
 494          */
 495         enum drm_connector_status (*detect)(struct drm_connector *connector,
 496                                             bool force);
 497         int (*fill_modes)(struct drm_connector *connector, uint32_t max_width, uint32_t max_height);
 498         int (*set_property)(struct drm_connector *connector, struct drm_property *property,
 499                              uint64_t val);
 500         void (*destroy)(struct drm_connector *connector);
 501         void (*force)(struct drm_connector *connector);
 502
 503         /* atomic update handling */
 504         struct drm_connector_state *(*atomic_duplicate_state)(struct drm_connector *connector);
 505         void (*atomic_destroy_state)(struct drm_connector *connector,
 506                                      struct drm_connector_state *state);
 507         int (*atomic_set_property)(struct drm_connector *connector,
 508                                    struct drm_connector_state *state,
 509                                    struct drm_property *property,
 510                                    uint64_t val);
 511 };
 512
 513 /**
 514  * struct drm_encoder_funcs - encoder controls
 515  * @reset: reset state (e.g. at init or resume time)
 516  * @destroy: cleanup and free associated data
 517  *
 518  * Encoders sit between CRTCs and connectors.
 519  */
 520 struct drm_encoder_funcs {
 521         void (*reset)(struct drm_encoder *encoder);
 522         void (*destroy)(struct drm_encoder *encoder);
 523 };
 524
 525 #define DRM_CONNECTOR_MAX_ENCODER 3
 526
 527 /**
 528  * struct drm_encoder - central DRM encoder structure
 529  * @dev: parent DRM device
 530  * @head: list management
 531  * @base: base KMS object
 532  * @name: encoder name
 533  * @encoder_type: one of the %DRM_MODE_ENCODER_<foo> types in drm_mode.h
 534  * @possible_crtcs: bitmask of potential CRTC bindings
 535  * @possible_clones: bitmask of potential sibling encoders for cloning
 536  * @crtc: currently bound CRTC
 537  * @bridge: bridge associated to the encoder
 538  * @funcs: control functions
 539  * @helper_private: mid-layer private data
 540  *
 541  * CRTCs drive pixels to encoders, which convert them into signals
 542  * appropriate for a given connector or set of connectors.
 543  */
 544 struct drm_encoder {
 545         struct drm_device *dev;
 546         struct list_head head;
 547
 548         struct drm_mode_object base;
 549         char *name;
 550         int encoder_type;
 551         uint32_t possible_crtcs;
 552         uint32_t possible_clones;
 553
 554         struct drm_crtc *crtc;
 555         struct drm_bridge *bridge;
 556         const struct drm_encoder_funcs *funcs;
 557         void *helper_private;
 558 };
 559
 560 /* should we poll this connector for connects and disconnects */
 561 /* hot plug detectable */
 562 #define DRM_CONNECTOR_POLL_HPD (1 << 0)
 563 /* poll for connections */
 564 #define DRM_CONNECTOR_POLL_CONNECT (1 << 1)
 565 /* can cleanly poll for disconnections without flickering the screen */
 566 /* DACs should rarely do this without a lot of testing */
 567 #define DRM_CONNECTOR_POLL_DISCONNECT (1 << 2)
 568
 569 #define MAX_ELD_BYTES   128
 570
 571 /**
 572  * struct drm_connector - central DRM connector control structure
 573  * @dev: parent DRM device
 574  * @kdev: kernel device for sysfs attributes
 575  * @attr: sysfs attributes
 576  * @head: list management
 577  * @base: base KMS object
 578  * @name: connector name
 579  * @connector_type: one of the %DRM_MODE_CONNECTOR_<foo> types from drm_mode.h
 580  * @connector_type_id: index into connector type enum
 581  * @interlace_allowed: can this connector handle interlaced modes?
 582  * @doublescan_allowed: can this connector handle doublescan?
 583  * @stereo_allowed: can this connector handle stereo modes?
 584  * @modes: modes available on this connector (from fill_modes() + user)
 585  * @status: one of the drm_connector_status enums (connected, not, or unknown)
 586  * @probed_modes: list of modes derived directly from the display
 587  * @display_info: information about attached display (e.g. from EDID)
 588  * @funcs: connector control functions
 589  * @edid_blob_ptr: DRM property containing EDID if present
 590  * @properties: property tracking for this connector
 591  * @path_blob_ptr: DRM blob property data for the DP MST path property
 592  * @polled: a %DRM_CONNECTOR_POLL_<foo> value for core driven polling
 593  * @dpms: current dpms state
 594  * @helper_private: mid-layer private data
 595  * @cmdline_mode: mode line parsed from the kernel cmdline for this connector
 596  * @force: a %DRM_FORCE_<foo> state for forced mode sets
 597  * @override_edid: has the EDID been overwritten through debugfs for testing?
 598  * @encoder_ids: valid encoders for this connector
 599  * @encoder: encoder driving this connector, if any
 600  * @eld: EDID-like data, if present
 601  * @dvi_dual: dual link DVI, if found
 602  * @max_tmds_clock: max clock rate, if found
 603  * @latency_present: AV delay info from ELD, if found
 604  * @video_latency: video latency info from ELD, if found
 605  * @audio_latency: audio latency info from ELD, if found
 606  * @null_edid_counter: track sinks that give us all zeros for the EDID
 607  * @bad_edid_counter: track sinks that give us an EDID with invalid checksum
 608  * @debugfs_entry: debugfs directory for this connector
 609  * @state: current atomic state for this connector
 610  * @has_tile: is this connector connected to a tiled monitor
 611  * @tile_group: tile group for the connected monitor
 612  * @tile_is_single_monitor: whether the tile is one monitor housing
 613  * @num_h_tile: number of horizontal tiles in the tile group
 614  * @num_v_tile: number of vertical tiles in the tile group
 615  * @tile_h_loc: horizontal location of this tile
 616  * @tile_v_loc: vertical location of this tile
 617  * @tile_h_size: horizontal size of this tile.
 618  * @tile_v_size: vertical size of this tile.
 619  *
 620  * Each connector may be connected to one or more CRTCs, or may be clonable by
 621  * another connector if they can share a CRTC.  Each connector also has a specific
 622  * position in the broader display (referred to as a 'screen' though it could
 623  * span multiple monitors).
 624  */
 625 struct drm_connector {
 626         struct drm_device *dev;
 627         struct device *kdev;
 628         struct device_attribute *attr;
 629         struct list_head head;
 630
 631         struct drm_mode_object base;
 632
 633         char *name;
 634         int connector_type;
 635         int connector_type_id;
 636         bool interlace_allowed;
 637         bool doublescan_allowed;
 638         bool stereo_allowed;
 639         struct list_head modes; /* list of modes on this connector */
 640
 641         enum drm_connector_status status;
 642
 643         /* these are modes added by probing with DDC or the BIOS */
 644         struct list_head probed_modes;
 645
 646         struct drm_display_info display_info;
 647         const struct drm_connector_funcs *funcs;
 648
 649         struct drm_property_blob *edid_blob_ptr;
 650         struct drm_object_properties properties;
 651
 652         struct drm_property_blob *path_blob_ptr;
 653
 654         uint8_t polled; /* DRM_CONNECTOR_POLL_* */
 655
 656         /* requested DPMS state */
 657         int dpms;
 658
 659         void *helper_private;
 660
 661         /* forced on connector */
 662         struct drm_cmdline_mode cmdline_mode;
 663         enum drm_connector_force force;
 664         bool override_edid;
 665         uint32_t encoder_ids[DRM_CONNECTOR_MAX_ENCODER];
 666         struct drm_encoder *encoder; /* currently active encoder */
 667
 668         /* EDID bits */
 669         uint8_t eld[MAX_ELD_BYTES];
 670         bool dvi_dual;
 671         int max_tmds_clock;     /* in MHz */
 672         bool latency_present[2];
 673         int video_latency[2];   /* [0]: progressive, [1]: interlaced */
 674         int audio_latency[2];
 675         int null_edid_counter; /* needed to workaround some HW bugs where we get all 0s */
 676         unsigned bad_edid_counter;
 677
 678         struct dentry *debugfs_entry;
 679
 680         struct drm_connector_state *state;
 681
 682         /* DisplayID bits */
 683         bool has_tile;
 684         struct drm_tile_group *tile_group;
 685         bool tile_is_single_monitor;
 686
 687         uint8_t num_h_tile, num_v_tile;
 688         uint8_t tile_h_loc, tile_v_loc;
 689         uint16_t tile_h_size, tile_v_size;
 690 };
 691
 692 /**
 693  * struct drm_plane_state - mutable plane state
 694  * @crtc: currently bound CRTC, NULL if disabled
 695  * @fb: currently bound framebuffer
 696  * @fence: optional fence to wait for before scanning out @fb
 697  * @crtc_x: left position of visible portion of plane on crtc
 698  * @crtc_y: upper position of visible portion of plane on crtc
 699  * @crtc_w: width of visible portion of plane on crtc
 700  * @crtc_h: height of visible portion of plane on crtc
 701  * @src_x: left position of visible portion of plane within
 702  *      plane (in 16.16)
 703  * @src_y: upper position of visible portion of plane within
 704  *      plane (in 16.16)
 705  * @src_w: width of visible portion of plane (in 16.16)
 706  * @src_h: height of visible portion of plane (in 16.16)
 707  * @state: backpointer to global drm_atomic_state
 708  */
 709 struct drm_plane_state {
 710         struct drm_crtc *crtc;   /* do not write directly, use drm_atomic_set_crtc_for_plane() */
 711         struct drm_framebuffer *fb;  /* do not write directly, use drm_atomic_set_fb_for_plane() */
 712         struct fence *fence;
 713
 714         /* Signed dest location allows it to be partially off screen */
 715         int32_t crtc_x, crtc_y;
 716         uint32_t crtc_w, crtc_h;
 717
 718         /* Source values are 16.16 fixed point */
 719         uint32_t src_x, src_y;
 720         uint32_t src_h, src_w;
 721
 722         struct drm_atomic_state *state;
 723 };
 724
 725
 726 /**
 727  * struct drm_plane_funcs - driver plane control functions
 728  * @update_plane: update the plane configuration
 729  * @disable_plane: shut down the plane
 730  * @destroy: clean up plane resources
 731  * @reset: reset plane after state has been invalidated (e.g. resume)
 732  * @set_property: called when a property is changed
 733  * @atomic_duplicate_state: duplicate the atomic state for this plane
 734  * @atomic_destroy_state: destroy an atomic state for this plane
 735  * @atomic_set_property: set a property on an atomic state for this plane
 736  */
 737 struct drm_plane_funcs {
 738         int (*update_plane)(struct drm_plane *plane,
 739                             struct drm_crtc *crtc, struct drm_framebuffer *fb,
 740                             int crtc_x, int crtc_y,
 741                             unsigned int crtc_w, unsigned int crtc_h,
 742                             uint32_t src_x, uint32_t src_y,
 743                             uint32_t src_w, uint32_t src_h);
 744         int (*disable_plane)(struct drm_plane *plane);
 745         void (*destroy)(struct drm_plane *plane);
 746         void (*reset)(struct drm_plane *plane);
 747
 748         int (*set_property)(struct drm_plane *plane,
 749                             struct drm_property *property, uint64_t val);
 750
 751         /* atomic update handling */
 752         struct drm_plane_state *(*atomic_duplicate_state)(struct drm_plane *plane);
 753         void (*atomic_destroy_state)(struct drm_plane *plane,
 754                                      struct drm_plane_state *state);
 755         int (*atomic_set_property)(struct drm_plane *plane,
 756                                    struct drm_plane_state *state,
 757                                    struct drm_property *property,
 758                                    uint64_t val);
 759 };
 760
 761 enum drm_plane_type {
 762         DRM_PLANE_TYPE_OVERLAY,
 763         DRM_PLANE_TYPE_PRIMARY,
 764         DRM_PLANE_TYPE_CURSOR,
 765 };
 766
 767 /**
 768  * struct drm_plane - central DRM plane control structure
 769  * @dev: DRM device this plane belongs to
 770  * @head: for list management
 771  * @base: base mode object
 772  * @possible_crtcs: pipes this plane can be bound to
 773  * @format_types: array of formats supported by this plane
 774  * @format_count: number of formats supported
 775  * @crtc: currently bound CRTC
 776  * @fb: currently bound fb
 777  * @old_fb: Temporary tracking of the old fb while a modeset is ongoing. Used by
 778  *      drm_mode_set_config_internal() to implement correct refcounting.
 779  * @funcs: helper functions
 780  * @properties: property tracking for this plane
 781  * @type: type of plane (overlay, primary, cursor)
 782  * @state: current atomic state for this plane
 783  */
 784 struct drm_plane {
 785         struct drm_device *dev;
 786         struct list_head head;
 787
 788         struct drm_modeset_lock mutex;
 789
 790         struct drm_mode_object base;
 791
 792         uint32_t possible_crtcs;
 793         uint32_t *format_types;
 794         uint32_t format_count;
 795
 796         struct drm_crtc *crtc;
 797         struct drm_framebuffer *fb;
 798
 799         struct drm_framebuffer *old_fb;
 800
 801         const struct drm_plane_funcs *funcs;
 802
 803         struct drm_object_properties properties;
 804
 805         enum drm_plane_type type;
 806
 807         void *helper_private;
 808
 809         struct drm_plane_state *state;
 810 };
 811
 812 /**
 813  * struct drm_bridge_funcs - drm_bridge control functions
 814  * @mode_fixup: Try to fixup (or reject entirely) proposed mode for this bridge
 815  * @disable: Called right before encoder prepare, disables the bridge
 816  * @post_disable: Called right after encoder prepare, for lockstepped disable
 817  * @mode_set: Set this mode to the bridge
 818  * @pre_enable: Called right before encoder commit, for lockstepped commit
 819  * @enable: Called right after encoder commit, enables the bridge
 820  * @destroy: make object go away
 821  */
 822 struct drm_bridge_funcs {
 823         bool (*mode_fixup)(struct drm_bridge *bridge,
 824                            const struct drm_display_mode *mode,
 825                            struct drm_display_mode *adjusted_mode);
 826         void (*disable)(struct drm_bridge *bridge);
 827         void (*post_disable)(struct drm_bridge *bridge);
 828         void (*mode_set)(struct drm_bridge *bridge,
 829                          struct drm_display_mode *mode,
 830                          struct drm_display_mode *adjusted_mode);
 831         void (*pre_enable)(struct drm_bridge *bridge);
 832         void (*enable)(struct drm_bridge *bridge);
 833         void (*destroy)(struct drm_bridge *bridge);
 834 };
 835
 836 /**
 837  * struct drm_bridge - central DRM bridge control structure
 838  * @dev: DRM device this bridge belongs to
 839  * @head: list management
 840  * @base: base mode object
 841  * @funcs: control functions
 842  * @driver_private: pointer to the bridge driver's internal context
 843  */
 844 struct drm_bridge {
 845         struct drm_device *dev;
 846         struct list_head head;
 847
 848         struct drm_mode_object base;
 849
 850         const struct drm_bridge_funcs *funcs;
 851         void *driver_private;
 852 };
 853
 854 /**
 855  * struct struct drm_atomic_state - the global state object for atomic updates
 856  * @dev: parent DRM device
 857  * @flags: state flags like async update
 858  * @planes: pointer to array of plane pointers
 859  * @plane_states: pointer to array of plane states pointers
 860  * @crtcs: pointer to array of CRTC pointers
 861  * @crtc_states: pointer to array of CRTC states pointers
 862  * @num_connector: size of the @connectors and @connector_states arrays
 863  * @connectors: pointer to array of connector pointers
 864  * @connector_states: pointer to array of connector states pointers
 865  * @acquire_ctx: acquire context for this atomic modeset state update
 866  */
 867 struct drm_atomic_state {
 868         struct drm_device *dev;
 869         uint32_t flags;
 870         struct drm_plane **planes;
 871         struct drm_plane_state **plane_states;
 872         struct drm_crtc **crtcs;
 873         struct drm_crtc_state **crtc_states;
 874         int num_connector;
 875         struct drm_connector **connectors;
 876         struct drm_connector_state **connector_states;
 877
 878         struct drm_modeset_acquire_ctx *acquire_ctx;
 879 };
 880
 881
 882 /**
 883  * struct drm_mode_set - new values for a CRTC config change
 884  * @fb: framebuffer to use for new config
 885  * @crtc: CRTC whose configuration we're about to change
 886  * @mode: mode timings to use
 887  * @x: position of this CRTC relative to @fb
 888  * @y: position of this CRTC relative to @fb
 889  * @connectors: array of connectors to drive with this CRTC if possible
 890  * @num_connectors: size of @connectors array
 891  *
 892  * Represents a single crtc the connectors that it drives with what mode
 893  * and from which framebuffer it scans out from.
 894  *
 895  * This is used to set modes.
 896  */
 897 struct drm_mode_set {
 898         struct drm_framebuffer *fb;
 899         struct drm_crtc *crtc;
 900         struct drm_display_mode *mode;
 901
 902         uint32_t x;
 903         uint32_t y;
 904
 905         struct drm_connector **connectors;
 906         size_t num_connectors;
 907 };
 908
 909 /**
 910  * struct drm_mode_config_funcs - basic driver provided mode setting functions
 911  * @fb_create: create a new framebuffer object
 912  * @output_poll_changed: function to handle output configuration changes
 913  * @atomic_check: check whether a give atomic state update is possible
 914  * @atomic_commit: commit an atomic state update previously verified with
 915  *      atomic_check()
 916  *
 917  * Some global (i.e. not per-CRTC, connector, etc) mode setting functions that
 918  * involve drivers.
 919  */
 920 struct drm_mode_config_funcs {
 921         struct drm_framebuffer *(*fb_create)(struct drm_device *dev,
 922                                              struct drm_file *file_priv,
 923                                              struct drm_mode_fb_cmd2 *mode_cmd);
 924         void (*output_poll_changed)(struct drm_device *dev);
 925
 926         int (*atomic_check)(struct drm_device *dev,
 927                             struct drm_atomic_state *a);
 928         int (*atomic_commit)(struct drm_device *dev,
 929                              struct drm_atomic_state *a,
 930                              bool async);
 931 };
 932
 933 /**
 934  * struct drm_mode_group - group of mode setting resources for potential sub-grouping
 935  * @num_crtcs: CRTC count
 936  * @num_encoders: encoder count
 937  * @num_connectors: connector count
 938  * @num_bridges: bridge count
 939  * @id_list: list of KMS object IDs in this group
 940  *
 941  * Currently this simply tracks the global mode setting state.  But in the
 942  * future it could allow groups of objects to be set aside into independent
 943  * control groups for use by different user level processes (e.g. two X servers
 944  * running simultaneously on different heads, each with their own mode
 945  * configuration and freedom of mode setting).
 946  */
 947 struct drm_mode_group {
 948         uint32_t num_crtcs;
 949         uint32_t num_encoders;
 950         uint32_t num_connectors;
 951         uint32_t num_bridges;
 952
 953         /* list of object IDs for this group */
 954         uint32_t *id_list;
 955 };
 956
 957 /**
 958  * struct drm_mode_config - Mode configuration control structure
 959  * @mutex: mutex protecting KMS related lists and structures
 960  * @connection_mutex: ww mutex protecting connector state and routing
 961  * @acquire_ctx: global implicit acquire context used by atomic drivers for
 962  *      legacy ioctls
 963  * @idr_mutex: mutex for KMS ID allocation and management
 964  * @crtc_idr: main KMS ID tracking object
 965  * @fb_lock: mutex to protect fb state and lists
 966  * @num_fb: number of fbs available
 967  * @fb_list: list of framebuffers available
 968  * @num_connector: number of connectors on this device
 969  * @connector_list: list of connector objects
 970  * @num_bridge: number of bridges on this device
 971  * @bridge_list: list of bridge objects
 972  * @num_encoder: number of encoders on this device
 973  * @encoder_list: list of encoder objects
 974  * @num_overlay_plane: number of overlay planes on this device
 975  * @num_total_plane: number of universal (i.e. with primary/curso) planes on this device
 976  * @plane_list: list of plane objects
 977  * @num_crtc: number of CRTCs on this device
 978  * @crtc_list: list of CRTC objects
 979  * @property_list: list of property objects
 980  * @min_width: minimum pixel width on this device
 981  * @min_height: minimum pixel height on this device
 982  * @max_width: maximum pixel width on this device
 983  * @max_height: maximum pixel height on this device
 984  * @funcs: core driver provided mode setting functions
 985  * @fb_base: base address of the framebuffer
 986  * @poll_enabled: track polling support for this device
 987  * @poll_running: track polling status for this device
 988  * @output_poll_work: delayed work for polling in process context
 989  * @property_blob_list: list of all the blob property objects
 990  * @*_property: core property tracking
 991  * @preferred_depth: preferred RBG pixel depth, used by fb helpers
 992  * @prefer_shadow: hint to userspace to prefer shadow-fb rendering
 993  * @async_page_flip: does this device support async flips on the primary plane?
 994  * @cursor_width: hint to userspace for max cursor width
 995  * @cursor_height: hint to userspace for max cursor height
 996  *
 997  * Core mode resource tracking structure.  All CRTC, encoders, and connectors
 998  * enumerated by the driver are added here, as are global properties.  Some
 999  * global restrictions are also here, e.g. dimension restrictions.
1000  */
1001 struct drm_mode_config {
1002         struct mutex mutex; /* protects configuration (mode lists etc.) */
1003         struct drm_modeset_lock connection_mutex; /* protects connector->encoder and encoder->crtc links */
1004         struct drm_modeset_acquire_ctx *acquire_ctx; /* for legacy _lock_all() / _unlock_all() */
1005         struct mutex idr_mutex; /* for IDR management */
1006         struct idr crtc_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */
1007         struct idr tile_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */
1008         /* this is limited to one for now */
1009
1010         struct mutex fb_lock; /* proctects global and per-file fb lists */
1011         int num_fb;
1012         struct list_head fb_list;
1013
1014         int num_connector;
1015         struct list_head connector_list;
1016         int num_bridge;
1017         struct list_head bridge_list;
1018         int num_encoder;
1019         struct list_head encoder_list;
1020
1021         /*
1022          * Track # of overlay planes separately from # of total planes.  By
1023          * default we only advertise overlay planes to userspace; if userspace
1024          * sets the "universal plane" capability bit, we'll go ahead and
1025          * expose all planes.
1026          */
1027         int num_overlay_plane;
1028         int num_total_plane;
1029         struct list_head plane_list;
1030
1031         int num_crtc;
1032         struct list_head crtc_list;
1033
1034         struct list_head property_list;
1035
1036         int min_width, min_height;
1037         int max_width, max_height;
1038         const struct drm_mode_config_funcs *funcs;
1039         resource_size_t fb_base;
1040
1041         /* output poll support */
1042         bool poll_enabled;
1043         bool poll_running;
1044         struct delayed_work output_poll_work;
1045
1046         /* pointers to standard properties */
1047         struct list_head property_blob_list;
1048         struct drm_property *edid_property;
1049         struct drm_property *dpms_property;
1050         struct drm_property *path_property;
1051         struct drm_property *plane_type_property;
1052         struct drm_property *rotation_property;
1053
1054         /* DVI-I properties */
1055         struct drm_property *dvi_i_subconnector_property;
1056         struct drm_property *dvi_i_select_subconnector_property;
1057
1058         /* TV properties */
1059         struct drm_property *tv_subconnector_property;
1060         struct drm_property *tv_select_subconnector_property;
1061         struct drm_property *tv_mode_property;
1062         struct drm_property *tv_left_margin_property;
1063         struct drm_property *tv_right_margin_property;
1064         struct drm_property *tv_top_margin_property;
1065         struct drm_property *tv_bottom_margin_property;
1066         struct drm_property *tv_brightness_property;
1067         struct drm_property *tv_contrast_property;
1068         struct drm_property *tv_flicker_reduction_property;
1069         struct drm_property *tv_overscan_property;
1070         struct drm_property *tv_saturation_property;
1071         struct drm_property *tv_hue_property;
1072
1073         /* Optional properties */
1074         struct drm_property *scaling_mode_property;
1075         struct drm_property *aspect_ratio_property;
1076         struct drm_property *dirty_info_property;
1077
1078         /* properties for virtual machine layout */
1079         struct drm_property *suggested_x_property;
1080         struct drm_property *suggested_y_property;
1081
1082         /* dumb ioctl parameters */
1083         uint32_t preferred_depth, prefer_shadow;
1084
1085         /* whether async page flip is supported or not */
1086         bool async_page_flip;
1087
1088         /* cursor size */
1089         uint32_t cursor_width, cursor_height;
1090 };
1091
1092 /**
1093  * drm_for_each_plane_mask - iterate over planes specified by bitmask
1094  * @plane: the loop cursor
1095  * @dev: the DRM device
1096  * @plane_mask: bitmask of plane indices
1097  *
1098  * Iterate over all planes specified by bitmask.
1099  */
1100 #define drm_for_each_plane_mask(plane, dev, plane_mask) \
1101         list_for_each_entry((plane), &(dev)->mode_config.plane_list, head) \
1102                 if ((plane_mask) & (1 << drm_plane_index(plane)))
1103
1104
1105 #define obj_to_crtc(x) container_of(x, struct drm_crtc, base)
1106 #define obj_to_connector(x) container_of(x, struct drm_connector, base)
1107 #define obj_to_encoder(x) container_of(x, struct drm_encoder, base)
1108 #define obj_to_mode(x) container_of(x, struct drm_display_mode, base)
1109 #define obj_to_fb(x) container_of(x, struct drm_framebuffer, base)
1110 #define obj_to_property(x) container_of(x, struct drm_property, base)
1111 #define obj_to_blob(x) container_of(x, struct drm_property_blob, base)
1112 #define obj_to_plane(x) container_of(x, struct drm_plane, base)
1113
1114 struct drm_prop_enum_list {
1115         int type;
1116         char *name;
1117 };
1118
1119 extern int drm_crtc_init_with_planes(struct drm_device *dev,
1120                                      struct drm_crtc *crtc,
1121                                      struct drm_plane *primary,
1122                                      struct drm_plane *cursor,
1123                                      const struct drm_crtc_funcs *funcs);
1124 extern void drm_crtc_cleanup(struct drm_crtc *crtc);
1125 extern unsigned int drm_crtc_index(struct drm_crtc *crtc);
1126
1127 /**
1128  * drm_crtc_mask - find the mask of a registered CRTC
1129  * @crtc: CRTC to find mask for
1130  *
1131  * Given a registered CRTC, return the mask bit of that CRTC for an
1132  * encoder's possible_crtcs field.
1133  */
1134 static inline uint32_t drm_crtc_mask(struct drm_crtc *crtc)
1135 {
1136         return 1 << drm_crtc_index(crtc);
1137 }
1138
1139 extern void drm_connector_ida_init(void);
1140 extern void drm_connector_ida_destroy(void);
1141 extern int drm_connector_init(struct drm_device *dev,
1142                               struct drm_connector *connector,
1143                               const struct drm_connector_funcs *funcs,
1144                               int connector_type);
1145 int drm_connector_register(struct drm_connector *connector);
1146 void drm_connector_unregister(struct drm_connector *connector);
1147
1148 extern void drm_connector_cleanup(struct drm_connector *connector);
1149 extern unsigned int drm_connector_index(struct drm_connector *connector);
1150 /* helper to unplug all connectors from sysfs for device */
1151 extern void drm_connector_unplug_all(struct drm_device *dev);
1152
1153 extern int drm_bridge_init(struct drm_device *dev, struct drm_bridge *bridge,
1154                            const struct drm_bridge_funcs *funcs);
1155 extern void drm_bridge_cleanup(struct drm_bridge *bridge);
1156
1157 extern int drm_encoder_init(struct drm_device *dev,
1158                             struct drm_encoder *encoder,
1159                             const struct drm_encoder_funcs *funcs,
1160                             int encoder_type);
1161
1162 /**
1163  * drm_encoder_crtc_ok - can a given crtc drive a given encoder?
1164  * @encoder: encoder to test
1165  * @crtc: crtc to test
1166  *
1167  * Return false if @encoder can't be driven by @crtc, true otherwise.
1168  */
1169 static inline bool drm_encoder_crtc_ok(struct drm_encoder *encoder,
1170                                        struct drm_crtc *crtc)
1171 {
1172         return !!(encoder->possible_crtcs & drm_crtc_mask(crtc));
1173 }
1174
1175 extern int drm_universal_plane_init(struct drm_device *dev,
1176                                     struct drm_plane *plane,
1177                                     unsigned long possible_crtcs,
1178                                     const struct drm_plane_funcs *funcs,
1179                                     const uint32_t *formats,
1180                                     uint32_t format_count,
1181                                     enum drm_plane_type type);
1182 extern int drm_plane_init(struct drm_device *dev,
1183                           struct drm_plane *plane,
1184                           unsigned long possible_crtcs,
1185                           const struct drm_plane_funcs *funcs,
1186                           const uint32_t *formats, uint32_t format_count,
1187                           bool is_primary);
1188 extern void drm_plane_cleanup(struct drm_plane *plane);
1189 extern unsigned int drm_plane_index(struct drm_plane *plane);
1190 extern void drm_plane_force_disable(struct drm_plane *plane);
1191 extern int drm_crtc_check_viewport(const struct drm_crtc *crtc,
1192                                    int x, int y,
1193                                    const struct drm_display_mode *mode,
1194                                    const struct drm_framebuffer *fb);
1195
1196 extern void drm_encoder_cleanup(struct drm_encoder *encoder);
1197
1198 extern const char *drm_get_connector_status_name(enum drm_connector_status status);
1199 extern const char *drm_get_subpixel_order_name(enum subpixel_order order);
1200 extern const char *drm_get_dpms_name(int val);
1201 extern const char *drm_get_dvi_i_subconnector_name(int val);
1202 extern const char *drm_get_dvi_i_select_name(int val);
1203 extern const char *drm_get_tv_subconnector_name(int val);
1204 extern const char *drm_get_tv_select_name(int val);
1205 extern void drm_fb_release(struct drm_file *file_priv);
1206 extern int drm_mode_group_init_legacy_group(struct drm_device *dev, struct drm_mode_group *group);
1207 extern void drm_mode_group_destroy(struct drm_mode_group *group);
1208 extern void drm_reinit_primary_mode_group(struct drm_device *dev);
1209 extern bool drm_probe_ddc(struct i2c_adapter *adapter);
1210 extern struct edid *drm_get_edid(struct drm_connector *connector,
1211                                  struct i2c_adapter *adapter);
1212 extern struct edid *drm_edid_duplicate(const struct edid *edid);
1213 extern int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid);
1214 extern void drm_mode_config_init(struct drm_device *dev);
1215 extern void drm_mode_config_reset(struct drm_device *dev);
1216 extern void drm_mode_config_cleanup(struct drm_device *dev);
1217
1218 extern int drm_mode_connector_set_path_property(struct drm_connector *connector,
1219                                                 const char *path);
1220 extern int drm_mode_connector_update_edid_property(struct drm_connector *connector,
1221                                                    const struct edid *edid);
1222
1223 static inline bool drm_property_type_is(struct drm_property *property,
1224                 uint32_t type)
1225 {
1226         /* instanceof for props.. handles extended type vs original types: */
1227         if (property->flags & DRM_MODE_PROP_EXTENDED_TYPE)
1228                 return (property->flags & DRM_MODE_PROP_EXTENDED_TYPE) == type;
1229         return property->flags & type;
1230 }
1231
1232 static inline bool drm_property_type_valid(struct drm_property *property)
1233 {
1234         if (property->flags & DRM_MODE_PROP_EXTENDED_TYPE)
1235                 return !(property->flags & DRM_MODE_PROP_LEGACY_TYPE);
1236         return !!(property->flags & DRM_MODE_PROP_LEGACY_TYPE);
1237 }
1238
1239 extern int drm_object_property_set_value(struct drm_mode_object *obj,
1240                                          struct drm_property *property,
1241                                          uint64_t val);
1242 extern int drm_object_property_get_value(struct drm_mode_object *obj,
1243                                          struct drm_property *property,
1244                                          uint64_t *value);
1245 extern int drm_framebuffer_init(struct drm_device *dev,
1246                                 struct drm_framebuffer *fb,
1247                                 const struct drm_framebuffer_funcs *funcs);
1248 extern struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev,
1249                                                       uint32_t id);
1250 extern void drm_framebuffer_unreference(struct drm_framebuffer *fb);
1251 extern void drm_framebuffer_reference(struct drm_framebuffer *fb);
1252 extern void drm_framebuffer_remove(struct drm_framebuffer *fb);
1253 extern void drm_framebuffer_cleanup(struct drm_framebuffer *fb);
1254 extern void drm_framebuffer_unregister_private(struct drm_framebuffer *fb);
1255
1256 extern void drm_object_attach_property(struct drm_mode_object *obj,
1257                                        struct drm_property *property,
1258                                        uint64_t init_val);
1259 extern struct drm_property *drm_property_create(struct drm_device *dev, int flags,
1260                                                 const char *name, int num_values);
1261 extern struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags,
1262                                          const char *name,
1263                                          const struct drm_prop_enum_list *props,
1264                                          int num_values);
1265 struct drm_property *drm_property_create_bitmask(struct drm_device *dev,
1266                                          int flags, const char *name,
1267                                          const struct drm_prop_enum_list *props,
1268                                          int num_props,
1269                                          uint64_t supported_bits);
1270 struct drm_property *drm_property_create_range(struct drm_device *dev, int flags,
1271                                          const char *name,
1272                                          uint64_t min, uint64_t max);
1273 struct drm_property *drm_property_create_signed_range(struct drm_device *dev,
1274                                          int flags, const char *name,
1275                                          int64_t min, int64_t max);
1276 struct drm_property *drm_property_create_object(struct drm_device *dev,
1277                                          int flags, const char *name, uint32_t type);
1278 extern void drm_property_destroy(struct drm_device *dev, struct drm_property *property);
1279 extern int drm_property_add_enum(struct drm_property *property, int index,
1280                                  uint64_t value, const char *name);
1281 extern int drm_mode_create_dvi_i_properties(struct drm_device *dev);
1282 extern int drm_mode_create_tv_properties(struct drm_device *dev,
1283                                          unsigned int num_modes,
1284                                          char *modes[]);
1285 extern int drm_mode_create_scaling_mode_property(struct drm_device *dev);
1286 extern int drm_mode_create_aspect_ratio_property(struct drm_device *dev);
1287 extern int drm_mode_create_dirty_info_property(struct drm_device *dev);
1288 extern int drm_mode_create_suggested_offset_properties(struct drm_device *dev);
1289
1290 extern int drm_mode_connector_attach_encoder(struct drm_connector *connector,
1291                                              struct drm_encoder *encoder);
1292 extern int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
1293                                          int gamma_size);
1294 extern struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
1295                 uint32_t id, uint32_t type);
1296
1297 /* IOCTLs */
1298 extern int drm_mode_getresources(struct drm_device *dev,
1299                                  void *data, struct drm_file *file_priv);
1300 extern int drm_mode_getplane_res(struct drm_device *dev, void *data,
1301                                    struct drm_file *file_priv);
1302 extern int drm_mode_getcrtc(struct drm_device *dev,
1303                             void *data, struct drm_file *file_priv);
1304 extern int drm_mode_getconnector(struct drm_device *dev,
1305                               void *data, struct drm_file *file_priv);
1306 extern int drm_mode_set_config_internal(struct drm_mode_set *set);
1307 extern int drm_mode_setcrtc(struct drm_device *dev,
1308                             void *data, struct drm_file *file_priv);
1309 extern int drm_mode_getplane(struct drm_device *dev,
1310                                void *data, struct drm_file *file_priv);
1311 extern int drm_mode_setplane(struct drm_device *dev,
1312                                void *data, struct drm_file *file_priv);
1313 extern int drm_mode_cursor_ioctl(struct drm_device *dev,
1314                                 void *data, struct drm_file *file_priv);
1315 extern int drm_mode_cursor2_ioctl(struct drm_device *dev,
1316                                 void *data, struct drm_file *file_priv);
1317 extern int drm_mode_addfb(struct drm_device *dev,
1318                           void *data, struct drm_file *file_priv);
1319 extern int drm_mode_addfb2(struct drm_device *dev,
1320                            void *data, struct drm_file *file_priv);
1321 extern uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth);
1322 extern int drm_mode_rmfb(struct drm_device *dev,
1323                          void *data, struct drm_file *file_priv);
1324 extern int drm_mode_getfb(struct drm_device *dev,
1325                           void *data, struct drm_file *file_priv);
1326 extern int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
1327                                   void *data, struct drm_file *file_priv);
1328
1329 extern int drm_mode_getproperty_ioctl(struct drm_device *dev,
1330                                       void *data, struct drm_file *file_priv);
1331 extern int drm_mode_getblob_ioctl(struct drm_device *dev,
1332                                   void *data, struct drm_file *file_priv);
1333 extern int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
1334                                               void *data, struct drm_file *file_priv);
1335 extern int drm_mode_getencoder(struct drm_device *dev,
1336                                void *data, struct drm_file *file_priv);
1337 extern int drm_mode_gamma_get_ioctl(struct drm_device *dev,
1338                                     void *data, struct drm_file *file_priv);
1339 extern int drm_mode_gamma_set_ioctl(struct drm_device *dev,
1340                                     void *data, struct drm_file *file_priv);
1341 extern u8 drm_match_cea_mode(const struct drm_display_mode *to_match);
1342 extern enum hdmi_picture_aspect drm_get_cea_aspect_ratio(const u8 video_code);
1343 extern bool drm_detect_hdmi_monitor(struct edid *edid);
1344 extern bool drm_detect_monitor_audio(struct edid *edid);
1345 extern bool drm_rgb_quant_range_selectable(struct edid *edid);
1346 extern int drm_mode_page_flip_ioctl(struct drm_device *dev,
1347                                     void *data, struct drm_file *file_priv);
1348 extern int drm_add_modes_noedid(struct drm_connector *connector,
1349                                 int hdisplay, int vdisplay);
1350 extern void drm_set_preferred_mode(struct drm_connector *connector,
1351                                    int hpref, int vpref);
1352
1353 extern int drm_edid_header_is_valid(const u8 *raw_edid);
1354 extern bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid);
1355 extern bool drm_edid_is_valid(struct edid *edid);
1356
1357 extern struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev,
1358                                                          char topology[8]);
1359 extern struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev,
1360                                                char topology[8]);
1361 extern void drm_mode_put_tile_group(struct drm_device *dev,
1362                                    struct drm_tile_group *tg);
1363 struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
1364                                            int hsize, int vsize, int fresh,
1365                                            bool rb);
1366
1367 extern int drm_mode_create_dumb_ioctl(struct drm_device *dev,
1368                                       void *data, struct drm_file *file_priv);
1369 extern int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
1370                                     void *data, struct drm_file *file_priv);
1371 extern int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
1372                                       void *data, struct drm_file *file_priv);
1373 extern int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
1374                                              struct drm_file *file_priv);
1375 extern int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
1376                                            struct drm_file *file_priv);
1377 extern int drm_mode_plane_set_obj_prop(struct drm_plane *plane,
1378                                        struct drm_property *property,
1379                                        uint64_t value);
1380
1381 extern void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
1382                                  int *bpp);
1383 extern int drm_format_num_planes(uint32_t format);
1384 extern int drm_format_plane_cpp(uint32_t format, int plane);
1385 extern int drm_format_horz_chroma_subsampling(uint32_t format);
1386 extern int drm_format_vert_chroma_subsampling(uint32_t format);
1387 extern const char *drm_get_format_name(uint32_t format);
1388 extern struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev,
1389                                                               unsigned int supported_rotations);
1390 extern unsigned int drm_rotation_simplify(unsigned int rotation,
1391                                           unsigned int supported_rotations);
1392
1393 /* Helpers */
1394
1395 static inline struct drm_plane *drm_plane_find(struct drm_device *dev,
1396                 uint32_t id)
1397 {
1398         struct drm_mode_object *mo;
1399         mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_PLANE);
1400         return mo ? obj_to_plane(mo) : NULL;
1401 }
1402
1403 static inline struct drm_crtc *drm_crtc_find(struct drm_device *dev,
1404         uint32_t id)
1405 {
1406         struct drm_mode_object *mo;
1407         mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_CRTC);
1408         return mo ? obj_to_crtc(mo) : NULL;
1409 }
1410
1411 static inline struct drm_encoder *drm_encoder_find(struct drm_device *dev,
1412         uint32_t id)
1413 {
1414         struct drm_mode_object *mo;
1415         mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
1416         return mo ? obj_to_encoder(mo) : NULL;
1417 }
1418
1419 static inline struct drm_connector *drm_connector_find(struct drm_device *dev,
1420                 uint32_t id)
1421 {
1422         struct drm_mode_object *mo;
1423         mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_CONNECTOR);
1424         return mo ? obj_to_connector(mo) : NULL;
1425 }
1426
1427 static inline struct drm_property *drm_property_find(struct drm_device *dev,
1428                 uint32_t id)
1429 {
1430         struct drm_mode_object *mo;
1431         mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_PROPERTY);
1432         return mo ? obj_to_property(mo) : NULL;
1433 }
1434
1435 static inline struct drm_property_blob *
1436 drm_property_blob_find(struct drm_device *dev, uint32_t id)
1437 {
1438         struct drm_mode_object *mo;
1439         mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_BLOB);
1440         return mo ? obj_to_blob(mo) : NULL;
1441 }
1442
1443 /* Plane list iterator for legacy (overlay only) planes. */
1444 #define drm_for_each_legacy_plane(plane, planelist) \
1445         list_for_each_entry(plane, planelist, head) \
1446                 if (plane->type == DRM_PLANE_TYPE_OVERLAY)
1447
1448 #endif /* __DRM_CRTC_H__ */