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 <drm/drm_mode.h>
  35
  36 #include <drm/drm_fourcc.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
  45 #define DRM_MODE_OBJECT_CRTC 0xcccccccc
  46 #define DRM_MODE_OBJECT_CONNECTOR 0xc0c0c0c0
  47 #define DRM_MODE_OBJECT_ENCODER 0xe0e0e0e0
  48 #define DRM_MODE_OBJECT_MODE 0xdededede
  49 #define DRM_MODE_OBJECT_PROPERTY 0xb0b0b0b0
  50 #define DRM_MODE_OBJECT_FB 0xfbfbfbfb
  51 #define DRM_MODE_OBJECT_BLOB 0xbbbbbbbb
  52 #define DRM_MODE_OBJECT_PLANE 0xeeeeeeee
  53 #define DRM_MODE_OBJECT_BRIDGE 0xbdbdbdbd
  54
  55 struct drm_mode_object {
  56         uint32_t id;
  57         uint32_t type;
  58         struct drm_object_properties *properties;
  59 };
  60
  61 #define DRM_OBJECT_MAX_PROPERTY 24
  62 struct drm_object_properties {
  63         int count;
  64         uint32_t ids[DRM_OBJECT_MAX_PROPERTY];
  65         uint64_t values[DRM_OBJECT_MAX_PROPERTY];
  66 };
  67
  68 /*
  69  * Note on terminology:  here, for brevity and convenience, we refer to connector
  70  * control chips as 'CRTCs'.  They can control any type of connector, VGA, LVDS,
  71  * DVI, etc.  And 'screen' refers to the whole of the visible display, which
  72  * may span multiple monitors (and therefore multiple CRTC and connector
  73  * structures).
  74  */
  75
  76 enum drm_mode_status {
  77     MODE_OK     = 0,    /* Mode OK */
  78     MODE_HSYNC,         /* hsync out of range */
  79     MODE_VSYNC,         /* vsync out of range */
  80     MODE_H_ILLEGAL,     /* mode has illegal horizontal timings */
  81     MODE_V_ILLEGAL,     /* mode has illegal horizontal timings */
  82     MODE_BAD_WIDTH,     /* requires an unsupported linepitch */
  83     MODE_NOMODE,        /* no mode with a matching name */
  84     MODE_NO_INTERLACE,  /* interlaced mode not supported */
  85     MODE_NO_DBLESCAN,   /* doublescan mode not supported */
  86     MODE_NO_VSCAN,      /* multiscan mode not supported */
  87     MODE_MEM,           /* insufficient video memory */
  88     MODE_VIRTUAL_X,     /* mode width too large for specified virtual size */
  89     MODE_VIRTUAL_Y,     /* mode height too large for specified virtual size */
  90     MODE_MEM_VIRT,      /* insufficient video memory given virtual size */
  91     MODE_NOCLOCK,       /* no fixed clock available */
  92     MODE_CLOCK_HIGH,    /* clock required is too high */
  93     MODE_CLOCK_LOW,     /* clock required is too low */
  94     MODE_CLOCK_RANGE,   /* clock/mode isn't in a ClockRange */
  95     MODE_BAD_HVALUE,    /* horizontal timing was out of range */
  96     MODE_BAD_VVALUE,    /* vertical timing was out of range */
  97     MODE_BAD_VSCAN,     /* VScan value out of range */
  98     MODE_HSYNC_NARROW,  /* horizontal sync too narrow */
  99     MODE_HSYNC_WIDE,    /* horizontal sync too wide */
 100     MODE_HBLANK_NARROW, /* horizontal blanking too narrow */
 101     MODE_HBLANK_WIDE,   /* horizontal blanking too wide */
 102     MODE_VSYNC_NARROW,  /* vertical sync too narrow */
 103     MODE_VSYNC_WIDE,    /* vertical sync too wide */
 104     MODE_VBLANK_NARROW, /* vertical blanking too narrow */
 105     MODE_VBLANK_WIDE,   /* vertical blanking too wide */
 106     MODE_PANEL,         /* exceeds panel dimensions */
 107     MODE_INTERLACE_WIDTH, /* width too large for interlaced mode */
 108     MODE_ONE_WIDTH,     /* only one width is supported */
 109     MODE_ONE_HEIGHT,    /* only one height is supported */
 110     MODE_ONE_SIZE,      /* only one resolution is supported */
 111     MODE_NO_REDUCED,    /* monitor doesn't accept reduced blanking */
 112     MODE_NO_STEREO,     /* stereo modes not supported */
 113     MODE_UNVERIFIED = -3, /* mode needs to reverified */
 114     MODE_BAD = -2,      /* unspecified reason */
 115     MODE_ERROR  = -1    /* error condition */
 116 };
 117
 118 #define DRM_MODE_TYPE_CLOCK_CRTC_C (DRM_MODE_TYPE_CLOCK_C | \
 119                                     DRM_MODE_TYPE_CRTC_C)
 120
 121 #define DRM_MODE(nm, t, c, hd, hss, hse, ht, hsk, vd, vss, vse, vt, vs, f) \
 122         .name = nm, .status = 0, .type = (t), .clock = (c), \
 123         .hdisplay = (hd), .hsync_start = (hss), .hsync_end = (hse), \
 124         .htotal = (ht), .hskew = (hsk), .vdisplay = (vd), \
 125         .vsync_start = (vss), .vsync_end = (vse), .vtotal = (vt), \
 126         .vscan = (vs), .flags = (f), \
 127         .base.type = DRM_MODE_OBJECT_MODE
 128
 129 #define CRTC_INTERLACE_HALVE_V  (1 << 0) /* halve V values for interlacing */
 130 #define CRTC_STEREO_DOUBLE      (1 << 1) /* adjust timings for stereo modes */
 131
 132 #define DRM_MODE_FLAG_3D_MAX    DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF
 133
 134 struct drm_display_mode {
 135         /* Header */
 136         struct list_head head;
 137         struct drm_mode_object base;
 138
 139         char name[DRM_DISPLAY_MODE_LEN];
 140
 141         enum drm_mode_status status;
 142         unsigned int type;
 143
 144         /* Proposed mode values */
 145         int clock;              /* in kHz */
 146         int hdisplay;
 147         int hsync_start;
 148         int hsync_end;
 149         int htotal;
 150         int hskew;
 151         int vdisplay;
 152         int vsync_start;
 153         int vsync_end;
 154         int vtotal;
 155         int vscan;
 156         unsigned int flags;
 157
 158         /* Addressable image size (may be 0 for projectors, etc.) */
 159         int width_mm;
 160         int height_mm;
 161
 162         /* Actual mode we give to hw */
 163         int crtc_clock;         /* in KHz */
 164         int crtc_hdisplay;
 165         int crtc_hblank_start;
 166         int crtc_hblank_end;
 167         int crtc_hsync_start;
 168         int crtc_hsync_end;
 169         int crtc_htotal;
 170         int crtc_hskew;
 171         int crtc_vdisplay;
 172         int crtc_vblank_start;
 173         int crtc_vblank_end;
 174         int crtc_vsync_start;
 175         int crtc_vsync_end;
 176         int crtc_vtotal;
 177
 178         /* Driver private mode info */
 179         int private_size;
 180         int *private;
 181         int private_flags;
 182
 183         int vrefresh;           /* in Hz */
 184         int hsync;              /* in kHz */
 185         enum hdmi_picture_aspect picture_aspect_ratio;
 186 };
 187
 188 static inline bool drm_mode_is_stereo(const struct drm_display_mode *mode)
 189 {
 190         return mode->flags & DRM_MODE_FLAG_3D_MASK;
 191 }
 192
 193 enum drm_connector_status {
 194         connector_status_connected = 1,
 195         connector_status_disconnected = 2,
 196         connector_status_unknown = 3,
 197 };
 198
 199 enum subpixel_order {
 200         SubPixelUnknown = 0,
 201         SubPixelHorizontalRGB,
 202         SubPixelHorizontalBGR,
 203         SubPixelVerticalRGB,
 204         SubPixelVerticalBGR,
 205         SubPixelNone,
 206 };
 207
 208 #define DRM_COLOR_FORMAT_RGB444         (1<<0)
 209 #define DRM_COLOR_FORMAT_YCRCB444       (1<<1)
 210 #define DRM_COLOR_FORMAT_YCRCB422       (1<<2)
 211 /*
 212  * Describes a given display (e.g. CRT or flat panel) and its limitations.
 213  */
 214 struct drm_display_info {
 215         char name[DRM_DISPLAY_INFO_LEN];
 216
 217         /* Physical size */
 218         unsigned int width_mm;
 219         unsigned int height_mm;
 220
 221         /* Clock limits FIXME: storage format */
 222         unsigned int min_vfreq, max_vfreq;
 223         unsigned int min_hfreq, max_hfreq;
 224         unsigned int pixel_clock;
 225         unsigned int bpc;
 226
 227         enum subpixel_order subpixel_order;
 228         u32 color_formats;
 229
 230         u8 cea_rev;
 231 };
 232
 233 struct drm_framebuffer_funcs {
 234         /* note: use drm_framebuffer_remove() */
 235         void (*destroy)(struct drm_framebuffer *framebuffer);
 236         int (*create_handle)(struct drm_framebuffer *fb,
 237                              struct drm_file *file_priv,
 238                              unsigned int *handle);
 239         /**
 240          * Optinal callback for the dirty fb ioctl.
 241          *
 242          * Userspace can notify the driver via this callback
 243          * that a area of the framebuffer has changed and should
 244          * be flushed to the display hardware.
 245          *
 246          * See documentation in drm_mode.h for the struct
 247          * drm_mode_fb_dirty_cmd for more information as all
 248          * the semantics and arguments have a one to one mapping
 249          * on this function.
 250          */
 251         int (*dirty)(struct drm_framebuffer *framebuffer,
 252                      struct drm_file *file_priv, unsigned flags,
 253                      unsigned color, struct drm_clip_rect *clips,
 254                      unsigned num_clips);
 255 };
 256
 257 struct drm_framebuffer {
 258         struct drm_device *dev;
 259         /*
 260          * Note that the fb is refcounted for the benefit of driver internals,
 261          * for example some hw, disabling a CRTC/plane is asynchronous, and
 262          * scanout does not actually complete until the next vblank.  So some
 263          * cleanup (like releasing the reference(s) on the backing GEM bo(s))
 264          * should be deferred.  In cases like this, the driver would like to
 265          * hold a ref to the fb even though it has already been removed from
 266          * userspace perspective.
 267          */
 268         struct kref refcount;
 269         /*
 270          * Place on the dev->mode_config.fb_list, access protected by
 271          * dev->mode_config.fb_lock.
 272          */
 273         struct list_head head;
 274         struct drm_mode_object base;
 275         const struct drm_framebuffer_funcs *funcs;
 276         unsigned int pitches[4];
 277         unsigned int offsets[4];
 278         unsigned int width;
 279         unsigned int height;
 280         /* depth can be 15 or 16 */
 281         unsigned int depth;
 282         int bits_per_pixel;
 283         int flags;
 284         uint32_t pixel_format; /* fourcc format */
 285         struct list_head filp_head;
 286         /* if you are using the helper */
 287         void *helper_private;
 288 };
 289
 290 struct drm_property_blob {
 291         struct drm_mode_object base;
 292         struct list_head head;
 293         unsigned int length;
 294         unsigned char data[];
 295 };
 296
 297 struct drm_property_enum {
 298         uint64_t value;
 299         struct list_head head;
 300         char name[DRM_PROP_NAME_LEN];
 301 };
 302
 303 struct drm_property {
 304         struct list_head head;
 305         struct drm_mode_object base;
 306         uint32_t flags;
 307         char name[DRM_PROP_NAME_LEN];
 308         uint32_t num_values;
 309         uint64_t *values;
 310
 311         struct list_head enum_blob_list;
 312 };
 313
 314 struct drm_crtc;
 315 struct drm_connector;
 316 struct drm_encoder;
 317 struct drm_pending_vblank_event;
 318 struct drm_plane;
 319 struct drm_bridge;
 320
 321 /**
 322  * drm_crtc_funcs - control CRTCs for a given device
 323  * @save: save CRTC state
 324  * @restore: restore CRTC state
 325  * @reset: reset CRTC after state has been invalidated (e.g. resume)
 326  * @cursor_set: setup the cursor
 327  * @cursor_move: move the cursor
 328  * @gamma_set: specify color ramp for CRTC
 329  * @destroy: deinit and free object
 330  * @set_property: called when a property is changed
 331  * @set_config: apply a new CRTC configuration
 332  * @page_flip: initiate a page flip
 333  *
 334  * The drm_crtc_funcs structure is the central CRTC management structure
 335  * in the DRM.  Each CRTC controls one or more connectors (note that the name
 336  * CRTC is simply historical, a CRTC may control LVDS, VGA, DVI, TV out, etc.
 337  * connectors, not just CRTs).
 338  *
 339  * Each driver is responsible for filling out this structure at startup time,
 340  * in addition to providing other modesetting features, like i2c and DDC
 341  * bus accessors.
 342  */
 343 struct drm_crtc_funcs {
 344         /* Save CRTC state */
 345         void (*save)(struct drm_crtc *crtc); /* suspend? */
 346         /* Restore CRTC state */
 347         void (*restore)(struct drm_crtc *crtc); /* resume? */
 348         /* Reset CRTC state */
 349         void (*reset)(struct drm_crtc *crtc);
 350
 351         /* cursor controls */
 352         int (*cursor_set)(struct drm_crtc *crtc, struct drm_file *file_priv,
 353                           uint32_t handle, uint32_t width, uint32_t height);
 354         int (*cursor_set2)(struct drm_crtc *crtc, struct drm_file *file_priv,
 355                            uint32_t handle, uint32_t width, uint32_t height,
 356                            int32_t hot_x, int32_t hot_y);
 357         int (*cursor_move)(struct drm_crtc *crtc, int x, int y);
 358
 359         /* Set gamma on the CRTC */
 360         void (*gamma_set)(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b,
 361                           uint32_t start, uint32_t size);
 362         /* Object destroy routine */
 363         void (*destroy)(struct drm_crtc *crtc);
 364
 365         int (*set_config)(struct drm_mode_set *set);
 366
 367         /*
 368          * Flip to the given framebuffer.  This implements the page
 369          * flip ioctl described in drm_mode.h, specifically, the
 370          * implementation must return immediately and block all
 371          * rendering to the current fb until the flip has completed.
 372          * If userspace set the event flag in the ioctl, the event
 373          * argument will point to an event to send back when the flip
 374          * completes, otherwise it will be NULL.
 375          */
 376         int (*page_flip)(struct drm_crtc *crtc,
 377                          struct drm_framebuffer *fb,
 378                          struct drm_pending_vblank_event *event,
 379                          uint32_t flags);
 380
 381         int (*set_property)(struct drm_crtc *crtc,
 382                             struct drm_property *property, uint64_t val);
 383 };
 384
 385 /**
 386  * drm_crtc - central CRTC control structure
 387  * @dev: parent DRM device
 388  * @head: list management
 389  * @base: base KMS object for ID tracking etc.
 390  * @enabled: is this CRTC enabled?
 391  * @mode: current mode timings
 392  * @hwmode: mode timings as programmed to hw regs
 393  * @invert_dimensions: for purposes of error checking crtc vs fb sizes,
 394  *    invert the width/height of the crtc.  This is used if the driver
 395  *    is performing 90 or 270 degree rotated scanout
 396  * @x: x position on screen
 397  * @y: y position on screen
 398  * @funcs: CRTC control functions
 399  * @gamma_size: size of gamma ramp
 400  * @gamma_store: gamma ramp values
 401  * @framedur_ns: precise frame timing
 402  * @framedur_ns: precise line timing
 403  * @pixeldur_ns: precise pixel timing
 404  * @helper_private: mid-layer private data
 405  * @properties: property tracking for this CRTC
 406  *
 407  * Each CRTC may have one or more connectors associated with it.  This structure
 408  * allows the CRTC to be controlled.
 409  */
 410 struct drm_crtc {
 411         struct drm_device *dev;
 412         struct list_head head;
 413
 414         /**
 415          * crtc mutex
 416          *
 417          * This provides a read lock for the overall crtc state (mode, dpms
 418          * state, ...) and a write lock for everything which can be update
 419          * without a full modeset (fb, cursor data, ...)
 420          */
 421         struct mutex mutex;
 422
 423         struct drm_mode_object base;
 424
 425         /* framebuffer the connector is currently bound to */
 426         struct drm_framebuffer *fb;
 427
 428         /* Temporary tracking of the old fb while a modeset is ongoing. Used
 429          * by drm_mode_set_config_internal to implement correct refcounting. */
 430         struct drm_framebuffer *old_fb;
 431
 432         bool enabled;
 433
 434         /* Requested mode from modesetting. */
 435         struct drm_display_mode mode;
 436
 437         /* Programmed mode in hw, after adjustments for encoders,
 438          * crtc, panel scaling etc. Needed for timestamping etc.
 439          */
 440         struct drm_display_mode hwmode;
 441
 442         bool invert_dimensions;
 443
 444         int x, y;
 445         const struct drm_crtc_funcs *funcs;
 446
 447         /* CRTC gamma size for reporting to userspace */
 448         uint32_t gamma_size;
 449         uint16_t *gamma_store;
 450
 451         /* Constants needed for precise vblank and swap timestamping. */
 452         s64 framedur_ns, linedur_ns, pixeldur_ns;
 453
 454         /* if you are using the helper */
 455         void *helper_private;
 456
 457         struct drm_object_properties properties;
 458 };
 459
 460
 461 /**
 462  * drm_connector_funcs - control connectors on a given device
 463  * @dpms: set power state (see drm_crtc_funcs above)
 464  * @save: save connector state
 465  * @restore: restore connector state
 466  * @reset: reset connector after state has been invalidated (e.g. resume)
 467  * @detect: is this connector active?
 468  * @fill_modes: fill mode list for this connector
 469  * @set_property: property for this connector may need an update
 470  * @destroy: make object go away
 471  * @force: notify the driver that the connector is forced on
 472  *
 473  * Each CRTC may have one or more connectors attached to it.  The functions
 474  * below allow the core DRM code to control connectors, enumerate available modes,
 475  * etc.
 476  */
 477 struct drm_connector_funcs {
 478         void (*dpms)(struct drm_connector *connector, int mode);
 479         void (*save)(struct drm_connector *connector);
 480         void (*restore)(struct drm_connector *connector);
 481         void (*reset)(struct drm_connector *connector);
 482
 483         /* Check to see if anything is attached to the connector.
 484          * @force is set to false whilst polling, true when checking the
 485          * connector due to user request. @force can be used by the driver
 486          * to avoid expensive, destructive operations during automated
 487          * probing.
 488          */
 489         enum drm_connector_status (*detect)(struct drm_connector *connector,
 490                                             bool force);
 491         int (*fill_modes)(struct drm_connector *connector, uint32_t max_width, uint32_t max_height);
 492         int (*set_property)(struct drm_connector *connector, struct drm_property *property,
 493                              uint64_t val);
 494         void (*destroy)(struct drm_connector *connector);
 495         void (*force)(struct drm_connector *connector);
 496 };
 497
 498 /**
 499  * drm_encoder_funcs - encoder controls
 500  * @reset: reset state (e.g. at init or resume time)
 501  * @destroy: cleanup and free associated data
 502  *
 503  * Encoders sit between CRTCs and connectors.
 504  */
 505 struct drm_encoder_funcs {
 506         void (*reset)(struct drm_encoder *encoder);
 507         void (*destroy)(struct drm_encoder *encoder);
 508 };
 509
 510 #define DRM_CONNECTOR_MAX_ENCODER 3
 511
 512 /**
 513  * drm_encoder - central DRM encoder structure
 514  * @dev: parent DRM device
 515  * @head: list management
 516  * @base: base KMS object
 517  * @encoder_type: one of the %DRM_MODE_ENCODER_<foo> types in drm_mode.h
 518  * @possible_crtcs: bitmask of potential CRTC bindings
 519  * @possible_clones: bitmask of potential sibling encoders for cloning
 520  * @crtc: currently bound CRTC
 521  * @bridge: bridge associated to the encoder
 522  * @funcs: control functions
 523  * @helper_private: mid-layer private data
 524  *
 525  * CRTCs drive pixels to encoders, which convert them into signals
 526  * appropriate for a given connector or set of connectors.
 527  */
 528 struct drm_encoder {
 529         struct drm_device *dev;
 530         struct list_head head;
 531
 532         struct drm_mode_object base;
 533         int encoder_type;
 534         uint32_t possible_crtcs;
 535         uint32_t possible_clones;
 536
 537         struct drm_crtc *crtc;
 538         struct drm_bridge *bridge;
 539         const struct drm_encoder_funcs *funcs;
 540         void *helper_private;
 541 };
 542
 543 enum drm_connector_force {
 544         DRM_FORCE_UNSPECIFIED,
 545         DRM_FORCE_OFF,
 546         DRM_FORCE_ON,         /* force on analog part normally */
 547         DRM_FORCE_ON_DIGITAL, /* for DVI-I use digital connector */
 548 };
 549
 550 /* should we poll this connector for connects and disconnects */
 551 /* hot plug detectable */
 552 #define DRM_CONNECTOR_POLL_HPD (1 << 0)
 553 /* poll for connections */
 554 #define DRM_CONNECTOR_POLL_CONNECT (1 << 1)
 555 /* can cleanly poll for disconnections without flickering the screen */
 556 /* DACs should rarely do this without a lot of testing */
 557 #define DRM_CONNECTOR_POLL_DISCONNECT (1 << 2)
 558
 559 #define MAX_ELD_BYTES   128
 560
 561 /**
 562  * drm_connector - central DRM connector control structure
 563  * @dev: parent DRM device
 564  * @kdev: kernel device for sysfs attributes
 565  * @attr: sysfs attributes
 566  * @head: list management
 567  * @base: base KMS object
 568  * @connector_type: one of the %DRM_MODE_CONNECTOR_<foo> types from drm_mode.h
 569  * @connector_type_id: index into connector type enum
 570  * @interlace_allowed: can this connector handle interlaced modes?
 571  * @doublescan_allowed: can this connector handle doublescan?
 572  * @modes: modes available on this connector (from fill_modes() + user)
 573  * @status: one of the drm_connector_status enums (connected, not, or unknown)
 574  * @probed_modes: list of modes derived directly from the display
 575  * @display_info: information about attached display (e.g. from EDID)
 576  * @funcs: connector control functions
 577  * @edid_blob_ptr: DRM property containing EDID if present
 578  * @properties: property tracking for this connector
 579  * @polled: a %DRM_CONNECTOR_POLL_<foo> value for core driven polling
 580  * @dpms: current dpms state
 581  * @helper_private: mid-layer private data
 582  * @force: a %DRM_FORCE_<foo> state for forced mode sets
 583  * @encoder_ids: valid encoders for this connector
 584  * @encoder: encoder driving this connector, if any
 585  * @eld: EDID-like data, if present
 586  * @dvi_dual: dual link DVI, if found
 587  * @max_tmds_clock: max clock rate, if found
 588  * @latency_present: AV delay info from ELD, if found
 589  * @video_latency: video latency info from ELD, if found
 590  * @audio_latency: audio latency info from ELD, if found
 591  * @null_edid_counter: track sinks that give us all zeros for the EDID
 592  *
 593  * Each connector may be connected to one or more CRTCs, or may be clonable by
 594  * another connector if they can share a CRTC.  Each connector also has a specific
 595  * position in the broader display (referred to as a 'screen' though it could
 596  * span multiple monitors).
 597  */
 598 struct drm_connector {
 599         struct drm_device *dev;
 600         struct device *kdev;
 601         struct device_attribute *attr;
 602         struct list_head head;
 603
 604         struct drm_mode_object base;
 605
 606         int connector_type;
 607         int connector_type_id;
 608         bool interlace_allowed;
 609         bool doublescan_allowed;
 610         bool stereo_allowed;
 611         struct list_head modes; /* list of modes on this connector */
 612
 613         enum drm_connector_status status;
 614
 615         /* these are modes added by probing with DDC or the BIOS */
 616         struct list_head probed_modes;
 617
 618         struct drm_display_info display_info;
 619         const struct drm_connector_funcs *funcs;
 620
 621         struct drm_property_blob *edid_blob_ptr;
 622         struct drm_object_properties properties;
 623
 624         uint8_t polled; /* DRM_CONNECTOR_POLL_* */
 625
 626         /* requested DPMS state */
 627         int dpms;
 628
 629         void *helper_private;
 630
 631         /* forced on connector */
 632         enum drm_connector_force force;
 633         uint32_t encoder_ids[DRM_CONNECTOR_MAX_ENCODER];
 634         struct drm_encoder *encoder; /* currently active encoder */
 635
 636         /* EDID bits */
 637         uint8_t eld[MAX_ELD_BYTES];
 638         bool dvi_dual;
 639         int max_tmds_clock;     /* in MHz */
 640         bool latency_present[2];
 641         int video_latency[2];   /* [0]: progressive, [1]: interlaced */
 642         int audio_latency[2];
 643         int null_edid_counter; /* needed to workaround some HW bugs where we get all 0s */
 644         unsigned bad_edid_counter;
 645 };
 646
 647 /**
 648  * drm_plane_funcs - driver plane control functions
 649  * @update_plane: update the plane configuration
 650  * @disable_plane: shut down the plane
 651  * @destroy: clean up plane resources
 652  * @set_property: called when a property is changed
 653  */
 654 struct drm_plane_funcs {
 655         int (*update_plane)(struct drm_plane *plane,
 656                             struct drm_crtc *crtc, struct drm_framebuffer *fb,
 657                             int crtc_x, int crtc_y,
 658                             unsigned int crtc_w, unsigned int crtc_h,
 659                             uint32_t src_x, uint32_t src_y,
 660                             uint32_t src_w, uint32_t src_h);
 661         int (*disable_plane)(struct drm_plane *plane);
 662         void (*destroy)(struct drm_plane *plane);
 663
 664         int (*set_property)(struct drm_plane *plane,
 665                             struct drm_property *property, uint64_t val);
 666 };
 667
 668 /**
 669  * drm_plane - central DRM plane control structure
 670  * @dev: DRM device this plane belongs to
 671  * @head: for list management
 672  * @base: base mode object
 673  * @possible_crtcs: pipes this plane can be bound to
 674  * @format_types: array of formats supported by this plane
 675  * @format_count: number of formats supported
 676  * @crtc: currently bound CRTC
 677  * @fb: currently bound fb
 678  * @funcs: helper functions
 679  * @properties: property tracking for this plane
 680  */
 681 struct drm_plane {
 682         struct drm_device *dev;
 683         struct list_head head;
 684
 685         struct drm_mode_object base;
 686
 687         uint32_t possible_crtcs;
 688         uint32_t *format_types;
 689         uint32_t format_count;
 690
 691         struct drm_crtc *crtc;
 692         struct drm_framebuffer *fb;
 693
 694         const struct drm_plane_funcs *funcs;
 695
 696         struct drm_object_properties properties;
 697 };
 698
 699 /**
 700  * drm_bridge_funcs - drm_bridge control functions
 701  * @mode_fixup: Try to fixup (or reject entirely) proposed mode for this bridge
 702  * @disable: Called right before encoder prepare, disables the bridge
 703  * @post_disable: Called right after encoder prepare, for lockstepped disable
 704  * @mode_set: Set this mode to the bridge
 705  * @pre_enable: Called right before encoder commit, for lockstepped commit
 706  * @enable: Called right after encoder commit, enables the bridge
 707  * @destroy: make object go away
 708  */
 709 struct drm_bridge_funcs {
 710         bool (*mode_fixup)(struct drm_bridge *bridge,
 711                            const struct drm_display_mode *mode,
 712                            struct drm_display_mode *adjusted_mode);
 713         void (*disable)(struct drm_bridge *bridge);
 714         void (*post_disable)(struct drm_bridge *bridge);
 715         void (*mode_set)(struct drm_bridge *bridge,
 716                          struct drm_display_mode *mode,
 717                          struct drm_display_mode *adjusted_mode);
 718         void (*pre_enable)(struct drm_bridge *bridge);
 719         void (*enable)(struct drm_bridge *bridge);
 720         void (*destroy)(struct drm_bridge *bridge);
 721 };
 722
 723 /**
 724  * drm_bridge - central DRM bridge control structure
 725  * @dev: DRM device this bridge belongs to
 726  * @head: list management
 727  * @base: base mode object
 728  * @funcs: control functions
 729  * @driver_private: pointer to the bridge driver's internal context
 730  */
 731 struct drm_bridge {
 732         struct drm_device *dev;
 733         struct list_head head;
 734
 735         struct drm_mode_object base;
 736
 737         const struct drm_bridge_funcs *funcs;
 738         void *driver_private;
 739 };
 740
 741 /**
 742  * drm_mode_set - new values for a CRTC config change
 743  * @head: list management
 744  * @fb: framebuffer to use for new config
 745  * @crtc: CRTC whose configuration we're about to change
 746  * @mode: mode timings to use
 747  * @x: position of this CRTC relative to @fb
 748  * @y: position of this CRTC relative to @fb
 749  * @connectors: array of connectors to drive with this CRTC if possible
 750  * @num_connectors: size of @connectors array
 751  *
 752  * Represents a single crtc the connectors that it drives with what mode
 753  * and from which framebuffer it scans out from.
 754  *
 755  * This is used to set modes.
 756  */
 757 struct drm_mode_set {
 758         struct drm_framebuffer *fb;
 759         struct drm_crtc *crtc;
 760         struct drm_display_mode *mode;
 761
 762         uint32_t x;
 763         uint32_t y;
 764
 765         struct drm_connector **connectors;
 766         size_t num_connectors;
 767 };
 768
 769 /**
 770  * struct drm_mode_config_funcs - basic driver provided mode setting functions
 771  * @fb_create: create a new framebuffer object
 772  * @output_poll_changed: function to handle output configuration changes
 773  *
 774  * Some global (i.e. not per-CRTC, connector, etc) mode setting functions that
 775  * involve drivers.
 776  */
 777 struct drm_mode_config_funcs {
 778         struct drm_framebuffer *(*fb_create)(struct drm_device *dev,
 779                                              struct drm_file *file_priv,
 780                                              struct drm_mode_fb_cmd2 *mode_cmd);
 781         void (*output_poll_changed)(struct drm_device *dev);
 782 };
 783
 784 /**
 785  * drm_mode_group - group of mode setting resources for potential sub-grouping
 786  * @num_crtcs: CRTC count
 787  * @num_encoders: encoder count
 788  * @num_connectors: connector count
 789  * @id_list: list of KMS object IDs in this group
 790  *
 791  * Currently this simply tracks the global mode setting state.  But in the
 792  * future it could allow groups of objects to be set aside into independent
 793  * control groups for use by different user level processes (e.g. two X servers
 794  * running simultaneously on different heads, each with their own mode
 795  * configuration and freedom of mode setting).
 796  */
 797 struct drm_mode_group {
 798         uint32_t num_crtcs;
 799         uint32_t num_encoders;
 800         uint32_t num_connectors;
 801         uint32_t num_bridges;
 802
 803         /* list of object IDs for this group */
 804         uint32_t *id_list;
 805 };
 806
 807 /**
 808  * drm_mode_config - Mode configuration control structure
 809  * @mutex: mutex protecting KMS related lists and structures
 810  * @idr_mutex: mutex for KMS ID allocation and management
 811  * @crtc_idr: main KMS ID tracking object
 812  * @num_fb: number of fbs available
 813  * @fb_list: list of framebuffers available
 814  * @num_connector: number of connectors on this device
 815  * @connector_list: list of connector objects
 816  * @num_bridge: number of bridges on this device
 817  * @bridge_list: list of bridge objects
 818  * @num_encoder: number of encoders on this device
 819  * @encoder_list: list of encoder objects
 820  * @num_crtc: number of CRTCs on this device
 821  * @crtc_list: list of CRTC objects
 822  * @min_width: minimum pixel width on this device
 823  * @min_height: minimum pixel height on this device
 824  * @max_width: maximum pixel width on this device
 825  * @max_height: maximum pixel height on this device
 826  * @funcs: core driver provided mode setting functions
 827  * @fb_base: base address of the framebuffer
 828  * @poll_enabled: track polling status for this device
 829  * @output_poll_work: delayed work for polling in process context
 830  * @*_property: core property tracking
 831  *
 832  * Core mode resource tracking structure.  All CRTC, encoders, and connectors
 833  * enumerated by the driver are added here, as are global properties.  Some
 834  * global restrictions are also here, e.g. dimension restrictions.
 835  */
 836 struct drm_mode_config {
 837         struct mutex mutex; /* protects configuration (mode lists etc.) */
 838         struct mutex idr_mutex; /* for IDR management */
 839         struct idr crtc_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */
 840         /* this is limited to one for now */
 841
 842
 843         /**
 844          * fb_lock - mutex to protect fb state
 845          *
 846          * Besides the global fb list his also protects the fbs list in the
 847          * file_priv
 848          */
 849         struct mutex fb_lock;
 850         int num_fb;
 851         struct list_head fb_list;
 852
 853         int num_connector;
 854         struct list_head connector_list;
 855         int num_bridge;
 856         struct list_head bridge_list;
 857         int num_encoder;
 858         struct list_head encoder_list;
 859         int num_plane;
 860         struct list_head plane_list;
 861
 862         int num_crtc;
 863         struct list_head crtc_list;
 864
 865         struct list_head property_list;
 866
 867         int min_width, min_height;
 868         int max_width, max_height;
 869         const struct drm_mode_config_funcs *funcs;
 870         resource_size_t fb_base;
 871
 872         /* output poll support */
 873         bool poll_enabled;
 874         bool poll_running;
 875         struct delayed_work output_poll_work;
 876
 877         /* pointers to standard properties */
 878         struct list_head property_blob_list;
 879         struct drm_property *edid_property;
 880         struct drm_property *dpms_property;
 881
 882         /* DVI-I properties */
 883         struct drm_property *dvi_i_subconnector_property;
 884         struct drm_property *dvi_i_select_subconnector_property;
 885
 886         /* TV properties */
 887         struct drm_property *tv_subconnector_property;
 888         struct drm_property *tv_select_subconnector_property;
 889         struct drm_property *tv_mode_property;
 890         struct drm_property *tv_left_margin_property;
 891         struct drm_property *tv_right_margin_property;
 892         struct drm_property *tv_top_margin_property;
 893         struct drm_property *tv_bottom_margin_property;
 894         struct drm_property *tv_brightness_property;
 895         struct drm_property *tv_contrast_property;
 896         struct drm_property *tv_flicker_reduction_property;
 897         struct drm_property *tv_overscan_property;
 898         struct drm_property *tv_saturation_property;
 899         struct drm_property *tv_hue_property;
 900
 901         /* Optional properties */
 902         struct drm_property *scaling_mode_property;
 903         struct drm_property *dirty_info_property;
 904
 905         /* dumb ioctl parameters */
 906         uint32_t preferred_depth, prefer_shadow;
 907
 908         /* whether async page flip is supported or not */
 909         bool async_page_flip;
 910 };
 911
 912 #define obj_to_crtc(x) container_of(x, struct drm_crtc, base)
 913 #define obj_to_connector(x) container_of(x, struct drm_connector, base)
 914 #define obj_to_encoder(x) container_of(x, struct drm_encoder, base)
 915 #define obj_to_mode(x) container_of(x, struct drm_display_mode, base)
 916 #define obj_to_fb(x) container_of(x, struct drm_framebuffer, base)
 917 #define obj_to_property(x) container_of(x, struct drm_property, base)
 918 #define obj_to_blob(x) container_of(x, struct drm_property_blob, base)
 919 #define obj_to_plane(x) container_of(x, struct drm_plane, base)
 920
 921 struct drm_prop_enum_list {
 922         int type;
 923         char *name;
 924 };
 925
 926 extern void drm_modeset_lock_all(struct drm_device *dev);
 927 extern void drm_modeset_unlock_all(struct drm_device *dev);
 928 extern void drm_warn_on_modeset_not_all_locked(struct drm_device *dev);
 929
 930 extern int drm_crtc_init(struct drm_device *dev,
 931                          struct drm_crtc *crtc,
 932                          const struct drm_crtc_funcs *funcs);
 933 extern void drm_crtc_cleanup(struct drm_crtc *crtc);
 934
 935 extern void drm_connector_ida_init(void);
 936 extern void drm_connector_ida_destroy(void);
 937 extern int drm_connector_init(struct drm_device *dev,
 938                               struct drm_connector *connector,
 939                               const struct drm_connector_funcs *funcs,
 940                               int connector_type);
 941
 942 extern void drm_connector_cleanup(struct drm_connector *connector);
 943 /* helper to unplug all connectors from sysfs for device */
 944 extern void drm_connector_unplug_all(struct drm_device *dev);
 945
 946 extern int drm_bridge_init(struct drm_device *dev, struct drm_bridge *bridge,
 947                            const struct drm_bridge_funcs *funcs);
 948 extern void drm_bridge_cleanup(struct drm_bridge *bridge);
 949
 950 extern int drm_encoder_init(struct drm_device *dev,
 951                             struct drm_encoder *encoder,
 952                             const struct drm_encoder_funcs *funcs,
 953                             int encoder_type);
 954
 955 extern int drm_plane_init(struct drm_device *dev,
 956                           struct drm_plane *plane,
 957                           unsigned long possible_crtcs,
 958                           const struct drm_plane_funcs *funcs,
 959                           const uint32_t *formats, uint32_t format_count,
 960                           bool priv);
 961 extern void drm_plane_cleanup(struct drm_plane *plane);
 962 extern void drm_plane_force_disable(struct drm_plane *plane);
 963
 964 extern void drm_encoder_cleanup(struct drm_encoder *encoder);
 965
 966 extern const char *drm_get_connector_name(const struct drm_connector *connector);
 967 extern const char *drm_get_connector_status_name(enum drm_connector_status status);
 968 extern const char *drm_get_dpms_name(int val);
 969 extern const char *drm_get_dvi_i_subconnector_name(int val);
 970 extern const char *drm_get_dvi_i_select_name(int val);
 971 extern const char *drm_get_tv_subconnector_name(int val);
 972 extern const char *drm_get_tv_select_name(int val);
 973 extern void drm_fb_release(struct drm_file *file_priv);
 974 extern int drm_mode_group_init_legacy_group(struct drm_device *dev, struct drm_mode_group *group);
 975 extern bool drm_probe_ddc(struct i2c_adapter *adapter);
 976 extern struct edid *drm_get_edid(struct drm_connector *connector,
 977                                  struct i2c_adapter *adapter);
 978 extern struct edid *drm_edid_duplicate(const struct edid *edid);
 979 extern int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid);
 980 extern void drm_mode_probed_add(struct drm_connector *connector, struct drm_display_mode *mode);
 981 extern void drm_mode_copy(struct drm_display_mode *dst, const struct drm_display_mode *src);
 982 extern struct drm_display_mode *drm_mode_duplicate(struct drm_device *dev,
 983                                                    const struct drm_display_mode *mode);
 984 extern void drm_mode_debug_printmodeline(const struct drm_display_mode *mode);
 985 extern void drm_mode_config_init(struct drm_device *dev);
 986 extern void drm_mode_config_reset(struct drm_device *dev);
 987 extern void drm_mode_config_cleanup(struct drm_device *dev);
 988 extern void drm_mode_set_name(struct drm_display_mode *mode);
 989 extern bool drm_mode_equal(const struct drm_display_mode *mode1, const struct drm_display_mode *mode2);
 990 extern bool drm_mode_equal_no_clocks_no_stereo(const struct drm_display_mode *mode1, const struct drm_display_mode *mode2);
 991 extern int drm_mode_width(const struct drm_display_mode *mode);
 992 extern int drm_mode_height(const struct drm_display_mode *mode);
 993
 994 /* for us by fb module */
 995 extern struct drm_display_mode *drm_mode_create(struct drm_device *dev);
 996 extern void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode);
 997 extern void drm_mode_validate_size(struct drm_device *dev,
 998                                    struct list_head *mode_list,
 999                                    int maxX, int maxY, int maxPitch);
1000 extern void drm_mode_prune_invalid(struct drm_device *dev,
1001                                    struct list_head *mode_list, bool verbose);
1002 extern void drm_mode_sort(struct list_head *mode_list);
1003 extern int drm_mode_hsync(const struct drm_display_mode *mode);
1004 extern int drm_mode_vrefresh(const struct drm_display_mode *mode);
1005 extern void drm_mode_set_crtcinfo(struct drm_display_mode *p,
1006                                   int adjust_flags);
1007 extern void drm_mode_connector_list_update(struct drm_connector *connector);
1008 extern int drm_mode_connector_update_edid_property(struct drm_connector *connector,
1009                                                 struct edid *edid);
1010 extern int drm_object_property_set_value(struct drm_mode_object *obj,
1011                                          struct drm_property *property,
1012                                          uint64_t val);
1013 extern int drm_object_property_get_value(struct drm_mode_object *obj,
1014                                          struct drm_property *property,
1015                                          uint64_t *value);
1016 extern int drm_framebuffer_init(struct drm_device *dev,
1017                                 struct drm_framebuffer *fb,
1018                                 const struct drm_framebuffer_funcs *funcs);
1019 extern struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev,
1020                                                       uint32_t id);
1021 extern void drm_framebuffer_unreference(struct drm_framebuffer *fb);
1022 extern void drm_framebuffer_reference(struct drm_framebuffer *fb);
1023 extern void drm_framebuffer_remove(struct drm_framebuffer *fb);
1024 extern void drm_framebuffer_cleanup(struct drm_framebuffer *fb);
1025 extern void drm_framebuffer_unregister_private(struct drm_framebuffer *fb);
1026
1027 extern void drm_object_attach_property(struct drm_mode_object *obj,
1028                                        struct drm_property *property,
1029                                        uint64_t init_val);
1030 extern struct drm_property *drm_property_create(struct drm_device *dev, int flags,
1031                                                 const char *name, int num_values);
1032 extern struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags,
1033                                          const char *name,
1034                                          const struct drm_prop_enum_list *props,
1035                                          int num_values);
1036 struct drm_property *drm_property_create_bitmask(struct drm_device *dev,
1037                                          int flags, const char *name,
1038                                          const struct drm_prop_enum_list *props,
1039                                          int num_values);
1040 struct drm_property *drm_property_create_range(struct drm_device *dev, int flags,
1041                                          const char *name,
1042                                          uint64_t min, uint64_t max);
1043 extern void drm_property_destroy(struct drm_device *dev, struct drm_property *property);
1044 extern int drm_property_add_enum(struct drm_property *property, int index,
1045                                  uint64_t value, const char *name);
1046 extern int drm_mode_create_dvi_i_properties(struct drm_device *dev);
1047 extern int drm_mode_create_tv_properties(struct drm_device *dev, int num_formats,
1048                                      char *formats[]);
1049 extern int drm_mode_create_scaling_mode_property(struct drm_device *dev);
1050 extern int drm_mode_create_dirty_info_property(struct drm_device *dev);
1051 extern const char *drm_get_encoder_name(const struct drm_encoder *encoder);
1052
1053 extern int drm_mode_connector_attach_encoder(struct drm_connector *connector,
1054                                              struct drm_encoder *encoder);
1055 extern void drm_mode_connector_detach_encoder(struct drm_connector *connector,
1056                                            struct drm_encoder *encoder);
1057 extern int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
1058                                          int gamma_size);
1059 extern struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
1060                 uint32_t id, uint32_t type);
1061 /* IOCTLs */
1062 extern int drm_mode_getresources(struct drm_device *dev,
1063                                  void *data, struct drm_file *file_priv);
1064 extern int drm_mode_getplane_res(struct drm_device *dev, void *data,
1065                                    struct drm_file *file_priv);
1066 extern int drm_mode_getcrtc(struct drm_device *dev,
1067                             void *data, struct drm_file *file_priv);
1068 extern int drm_mode_getconnector(struct drm_device *dev,
1069                               void *data, struct drm_file *file_priv);
1070 extern int drm_mode_set_config_internal(struct drm_mode_set *set);
1071 extern int drm_mode_setcrtc(struct drm_device *dev,
1072                             void *data, struct drm_file *file_priv);
1073 extern int drm_mode_getplane(struct drm_device *dev,
1074                                void *data, struct drm_file *file_priv);
1075 extern int drm_mode_setplane(struct drm_device *dev,
1076                                void *data, struct drm_file *file_priv);
1077 extern int drm_mode_cursor_ioctl(struct drm_device *dev,
1078                                 void *data, struct drm_file *file_priv);
1079 extern int drm_mode_cursor2_ioctl(struct drm_device *dev,
1080                                 void *data, struct drm_file *file_priv);
1081 extern int drm_mode_addfb(struct drm_device *dev,
1082                           void *data, struct drm_file *file_priv);
1083 extern int drm_mode_addfb2(struct drm_device *dev,
1084                            void *data, struct drm_file *file_priv);
1085 extern uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth);
1086 extern int drm_mode_rmfb(struct drm_device *dev,
1087                          void *data, struct drm_file *file_priv);
1088 extern int drm_mode_getfb(struct drm_device *dev,
1089                           void *data, struct drm_file *file_priv);
1090 extern int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
1091                                   void *data, struct drm_file *file_priv);
1092
1093 extern int drm_mode_getproperty_ioctl(struct drm_device *dev,
1094                                       void *data, struct drm_file *file_priv);
1095 extern int drm_mode_getblob_ioctl(struct drm_device *dev,
1096                                   void *data, struct drm_file *file_priv);
1097 extern int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
1098                                               void *data, struct drm_file *file_priv);
1099 extern int drm_mode_getencoder(struct drm_device *dev,
1100                                void *data, struct drm_file *file_priv);
1101 extern int drm_mode_gamma_get_ioctl(struct drm_device *dev,
1102                                     void *data, struct drm_file *file_priv);
1103 extern int drm_mode_gamma_set_ioctl(struct drm_device *dev,
1104                                     void *data, struct drm_file *file_priv);
1105 extern u8 drm_match_cea_mode(const struct drm_display_mode *to_match);
1106 extern bool drm_detect_hdmi_monitor(struct edid *edid);
1107 extern bool drm_detect_monitor_audio(struct edid *edid);
1108 extern bool drm_rgb_quant_range_selectable(struct edid *edid);
1109 extern int drm_mode_page_flip_ioctl(struct drm_device *dev,
1110                                     void *data, struct drm_file *file_priv);
1111 extern struct drm_display_mode *drm_cvt_mode(struct drm_device *dev,
1112                                 int hdisplay, int vdisplay, int vrefresh,
1113                                 bool reduced, bool interlaced, bool margins);
1114 extern struct drm_display_mode *drm_gtf_mode(struct drm_device *dev,
1115                                 int hdisplay, int vdisplay, int vrefresh,
1116                                 bool interlaced, int margins);
1117 extern struct drm_display_mode *drm_gtf_mode_complex(struct drm_device *dev,
1118                                 int hdisplay, int vdisplay, int vrefresh,
1119                                 bool interlaced, int margins, int GTF_M,
1120                                 int GTF_2C, int GTF_K, int GTF_2J);
1121 extern int drm_add_modes_noedid(struct drm_connector *connector,
1122                                 int hdisplay, int vdisplay);
1123 extern void drm_set_preferred_mode(struct drm_connector *connector,
1124                                    int hpref, int vpref);
1125
1126 extern int drm_edid_header_is_valid(const u8 *raw_edid);
1127 extern bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid);
1128 extern bool drm_edid_is_valid(struct edid *edid);
1129 struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
1130                                            int hsize, int vsize, int fresh,
1131                                            bool rb);
1132
1133 extern int drm_mode_create_dumb_ioctl(struct drm_device *dev,
1134                                       void *data, struct drm_file *file_priv);
1135 extern int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
1136                                     void *data, struct drm_file *file_priv);
1137 extern int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
1138                                       void *data, struct drm_file *file_priv);
1139 extern int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
1140                                              struct drm_file *file_priv);
1141 extern int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
1142                                            struct drm_file *file_priv);
1143
1144 extern void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
1145                                  int *bpp);
1146 extern int drm_format_num_planes(uint32_t format);
1147 extern int drm_format_plane_cpp(uint32_t format, int plane);
1148 extern int drm_format_horz_chroma_subsampling(uint32_t format);
1149 extern int drm_format_vert_chroma_subsampling(uint32_t format);
1150 extern const char *drm_get_format_name(uint32_t format);
1151
1152 /* Helpers */
1153 static inline struct drm_crtc *drm_crtc_find(struct drm_device *dev,
1154         uint32_t id)
1155 {
1156         struct drm_mode_object *mo;
1157         mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_CRTC);
1158         return mo ? obj_to_crtc(mo) : NULL;
1159 }
1160
1161 static inline struct drm_encoder *drm_encoder_find(struct drm_device *dev,
1162         uint32_t id)
1163 {
1164         struct drm_mode_object *mo;
1165         mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
1166         return mo ? obj_to_encoder(mo) : NULL;
1167 }
1168
1169 #endif /* __DRM_CRTC_H__ */