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  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 <drm/drm_mode.h>
  34.  
  35. #include <drm/drm_fourcc.h>
  36.  
  37. struct drm_device;
  38. struct drm_mode_set;
  39. struct drm_framebuffer;
  40. struct drm_object_properties;
  41. struct drm_file;
  42. struct drm_clip_rect;
  43.  
  44. #define DRM_MODE_OBJECT_CRTC 0xcccccccc
  45. #define DRM_MODE_OBJECT_CONNECTOR 0xc0c0c0c0
  46. #define DRM_MODE_OBJECT_ENCODER 0xe0e0e0e0
  47. #define DRM_MODE_OBJECT_MODE 0xdededede
  48. #define DRM_MODE_OBJECT_PROPERTY 0xb0b0b0b0
  49. #define DRM_MODE_OBJECT_FB 0xfbfbfbfb
  50. #define DRM_MODE_OBJECT_BLOB 0xbbbbbbbb
  51. #define DRM_MODE_OBJECT_PLANE 0xeeeeeeee
  52. #define DRM_MODE_OBJECT_BRIDGE 0xbdbdbdbd
  53.  
  54. struct drm_mode_object {
  55.         uint32_t id;
  56.         uint32_t type;
  57.         struct drm_object_properties *properties;
  58. };
  59.  
  60. #define DRM_OBJECT_MAX_PROPERTY 24
  61. struct drm_object_properties {
  62.         int count;
  63.         uint32_t ids[DRM_OBJECT_MAX_PROPERTY];
  64.         uint64_t values[DRM_OBJECT_MAX_PROPERTY];
  65. };
  66.  
  67. /*
  68.  * Note on terminology:  here, for brevity and convenience, we refer to connector
  69.  * control chips as 'CRTCs'.  They can control any type of connector, VGA, LVDS,
  70.  * DVI, etc.  And 'screen' refers to the whole of the visible display, which
  71.  * may span multiple monitors (and therefore multiple CRTC and connector
  72.  * structures).
  73.  */
  74.  
  75. enum drm_mode_status {
  76.     MODE_OK     = 0,    /* Mode OK */
  77.     MODE_HSYNC,         /* hsync out of range */
  78.     MODE_VSYNC,         /* vsync out of range */
  79.     MODE_H_ILLEGAL,     /* mode has illegal horizontal timings */
  80.     MODE_V_ILLEGAL,     /* mode has illegal horizontal timings */
  81.     MODE_BAD_WIDTH,     /* requires an unsupported linepitch */
  82.     MODE_NOMODE,        /* no mode with a matching name */
  83.     MODE_NO_INTERLACE,  /* interlaced mode not supported */
  84.     MODE_NO_DBLESCAN,   /* doublescan mode not supported */
  85.     MODE_NO_VSCAN,      /* multiscan mode not supported */
  86.     MODE_MEM,           /* insufficient video memory */
  87.     MODE_VIRTUAL_X,     /* mode width too large for specified virtual size */
  88.     MODE_VIRTUAL_Y,     /* mode height too large for specified virtual size */
  89.     MODE_MEM_VIRT,      /* insufficient video memory given virtual size */
  90.     MODE_NOCLOCK,       /* no fixed clock available */
  91.     MODE_CLOCK_HIGH,    /* clock required is too high */
  92.     MODE_CLOCK_LOW,     /* clock required is too low */
  93.     MODE_CLOCK_RANGE,   /* clock/mode isn't in a ClockRange */
  94.     MODE_BAD_HVALUE,    /* horizontal timing was out of range */
  95.     MODE_BAD_VVALUE,    /* vertical timing was out of range */
  96.     MODE_BAD_VSCAN,     /* VScan value out of range */
  97.     MODE_HSYNC_NARROW,  /* horizontal sync too narrow */
  98.     MODE_HSYNC_WIDE,    /* horizontal sync too wide */
  99.     MODE_HBLANK_NARROW, /* horizontal blanking too narrow */
  100.     MODE_HBLANK_WIDE,   /* horizontal blanking too wide */
  101.     MODE_VSYNC_NARROW,  /* vertical sync too narrow */
  102.     MODE_VSYNC_WIDE,    /* vertical sync too wide */
  103.     MODE_VBLANK_NARROW, /* vertical blanking too narrow */
  104.     MODE_VBLANK_WIDE,   /* vertical blanking too wide */
  105.     MODE_PANEL,         /* exceeds panel dimensions */
  106.     MODE_INTERLACE_WIDTH, /* width too large for interlaced mode */
  107.     MODE_ONE_WIDTH,     /* only one width is supported */
  108.     MODE_ONE_HEIGHT,    /* only one height is supported */
  109.     MODE_ONE_SIZE,      /* only one resolution is supported */
  110.     MODE_NO_REDUCED,    /* monitor doesn't accept reduced blanking */
  111.     MODE_UNVERIFIED = -3, /* mode needs to reverified */
  112.     MODE_BAD = -2,      /* unspecified reason */
  113.     MODE_ERROR  = -1    /* error condition */
  114. };
  115.  
  116. #define DRM_MODE_TYPE_CLOCK_CRTC_C (DRM_MODE_TYPE_CLOCK_C | \
  117.                                     DRM_MODE_TYPE_CRTC_C)
  118.  
  119. #define DRM_MODE(nm, t, c, hd, hss, hse, ht, hsk, vd, vss, vse, vt, vs, f) \
  120.         .name = nm, .status = 0, .type = (t), .clock = (c), \
  121.         .hdisplay = (hd), .hsync_start = (hss), .hsync_end = (hse), \
  122.         .htotal = (ht), .hskew = (hsk), .vdisplay = (vd), \
  123.         .vsync_start = (vss), .vsync_end = (vse), .vtotal = (vt), \
  124.         .vscan = (vs), .flags = (f), \
  125.         .base.type = DRM_MODE_OBJECT_MODE
  126.  
  127. #define CRTC_INTERLACE_HALVE_V 0x1 /* halve V values for interlacing */
  128.  
  129. struct drm_display_mode {
  130.         /* Header */
  131.         struct list_head head;
  132.         struct drm_mode_object base;
  133.  
  134.         char name[DRM_DISPLAY_MODE_LEN];
  135.  
  136.         enum drm_mode_status status;
  137.         unsigned int type;
  138.  
  139.         /* Proposed mode values */
  140.         int clock;              /* in kHz */
  141.         int hdisplay;
  142.         int hsync_start;
  143.         int hsync_end;
  144.         int htotal;
  145.         int hskew;
  146.         int vdisplay;
  147.         int vsync_start;
  148.         int vsync_end;
  149.         int vtotal;
  150.         int vscan;
  151.         unsigned int flags;
  152.  
  153.         /* Addressable image size (may be 0 for projectors, etc.) */
  154.         int width_mm;
  155.         int height_mm;
  156.  
  157.         /* Actual mode we give to hw */
  158.         int clock_index;
  159.         int synth_clock;
  160.         int crtc_hdisplay;
  161.         int crtc_hblank_start;
  162.         int crtc_hblank_end;
  163.         int crtc_hsync_start;
  164.         int crtc_hsync_end;
  165.         int crtc_htotal;
  166.         int crtc_hskew;
  167.         int crtc_vdisplay;
  168.         int crtc_vblank_start;
  169.         int crtc_vblank_end;
  170.         int crtc_vsync_start;
  171.         int crtc_vsync_end;
  172.         int crtc_vtotal;
  173.  
  174.         /* Driver private mode info */
  175.         int private_size;
  176.         int *private;
  177.         int private_flags;
  178.  
  179.         int vrefresh;           /* in Hz */
  180.         int hsync;              /* in kHz */
  181. };
  182.  
  183. enum drm_connector_status {
  184.         connector_status_connected = 1,
  185.         connector_status_disconnected = 2,
  186.         connector_status_unknown = 3,
  187. };
  188.  
  189. enum subpixel_order {
  190.         SubPixelUnknown = 0,
  191.         SubPixelHorizontalRGB,
  192.         SubPixelHorizontalBGR,
  193.         SubPixelVerticalRGB,
  194.         SubPixelVerticalBGR,
  195.         SubPixelNone,
  196. };
  197.  
  198. #define DRM_COLOR_FORMAT_RGB444         (1<<0)
  199. #define DRM_COLOR_FORMAT_YCRCB444       (1<<1)
  200. #define DRM_COLOR_FORMAT_YCRCB422       (1<<2)
  201. /*
  202.  * Describes a given display (e.g. CRT or flat panel) and its limitations.
  203.  */
  204. struct drm_display_info {
  205.         char name[DRM_DISPLAY_INFO_LEN];
  206.  
  207.         /* Physical size */
  208.         unsigned int width_mm;
  209.         unsigned int height_mm;
  210.  
  211.         /* Clock limits FIXME: storage format */
  212.         unsigned int min_vfreq, max_vfreq;
  213.         unsigned int min_hfreq, max_hfreq;
  214.         unsigned int pixel_clock;
  215.         unsigned int bpc;
  216.  
  217.         enum subpixel_order subpixel_order;
  218.         u32 color_formats;
  219.  
  220.         u8 cea_rev;
  221. };
  222.  
  223. struct drm_framebuffer_funcs {
  224.         /* note: use drm_framebuffer_remove() */
  225.         void (*destroy)(struct drm_framebuffer *framebuffer);
  226.         int (*create_handle)(struct drm_framebuffer *fb,
  227.                              struct drm_file *file_priv,
  228.                              unsigned int *handle);
  229.         /**
  230.          * Optinal callback for the dirty fb ioctl.
  231.          *
  232.          * Userspace can notify the driver via this callback
  233.          * that a area of the framebuffer has changed and should
  234.          * be flushed to the display hardware.
  235.          *
  236.          * See documentation in drm_mode.h for the struct
  237.          * drm_mode_fb_dirty_cmd for more information as all
  238.          * the semantics and arguments have a one to one mapping
  239.          * on this function.
  240.          */
  241.         int (*dirty)(struct drm_framebuffer *framebuffer,
  242.                      struct drm_file *file_priv, unsigned flags,
  243.                      unsigned color, struct drm_clip_rect *clips,
  244.                      unsigned num_clips);
  245. };
  246.  
  247. struct drm_framebuffer {
  248.         struct drm_device *dev;
  249.         /*
  250.          * Note that the fb is refcounted for the benefit of driver internals,
  251.          * for example some hw, disabling a CRTC/plane is asynchronous, and
  252.          * scanout does not actually complete until the next vblank.  So some
  253.          * cleanup (like releasing the reference(s) on the backing GEM bo(s))
  254.          * should be deferred.  In cases like this, the driver would like to
  255.          * hold a ref to the fb even though it has already been removed from
  256.          * userspace perspective.
  257.          */
  258.         struct kref refcount;
  259.         /*
  260.          * Place on the dev->mode_config.fb_list, access protected by
  261.          * dev->mode_config.fb_lock.
  262.          */
  263.         struct list_head head;
  264.         struct drm_mode_object base;
  265.         const struct drm_framebuffer_funcs *funcs;
  266.         unsigned int pitches[4];
  267.         unsigned int offsets[4];
  268.         unsigned int width;
  269.         unsigned int height;
  270.         /* depth can be 15 or 16 */
  271.         unsigned int depth;
  272.         int bits_per_pixel;
  273.         int flags;
  274.         uint32_t pixel_format; /* fourcc format */
  275.         struct list_head filp_head;
  276.         /* if you are using the helper */
  277.         void *helper_private;
  278. };
  279.  
  280. struct drm_property_blob {
  281.         struct drm_mode_object base;
  282.         struct list_head head;
  283.         unsigned int length;
  284.         unsigned char data[];
  285. };
  286.  
  287. struct drm_property_enum {
  288.         uint64_t value;
  289.         struct list_head head;
  290.         char name[DRM_PROP_NAME_LEN];
  291. };
  292.  
  293. struct drm_property {
  294.     struct      list_head head;
  295.     struct      drm_mode_object base;
  296.     uint32_t    flags;
  297.     char        name[DRM_PROP_NAME_LEN];
  298.     uint32_t    num_values;
  299.     uint64_t    *values;
  300.  
  301.         struct list_head enum_blob_list;
  302. };
  303.  
  304. struct drm_crtc;
  305. struct drm_connector;
  306. struct drm_encoder;
  307. struct drm_pending_vblank_event;
  308. struct drm_plane;
  309. struct drm_bridge;
  310.  
  311. /**
  312.  * drm_crtc_funcs - control CRTCs for a given device
  313.  * @save: save CRTC state
  314.  * @restore: restore CRTC state
  315.  * @reset: reset CRTC after state has been invalidated (e.g. resume)
  316.  * @cursor_set: setup the cursor
  317.  * @cursor_move: move the cursor
  318.  * @gamma_set: specify color ramp for CRTC
  319.  * @destroy: deinit and free object
  320.  * @set_property: called when a property is changed
  321.  * @set_config: apply a new CRTC configuration
  322.  * @page_flip: initiate a page flip
  323.  *
  324.  * The drm_crtc_funcs structure is the central CRTC management structure
  325.  * in the DRM.  Each CRTC controls one or more connectors (note that the name
  326.  * CRTC is simply historical, a CRTC may control LVDS, VGA, DVI, TV out, etc.
  327.  * connectors, not just CRTs).
  328.  *
  329.  * Each driver is responsible for filling out this structure at startup time,
  330.  * in addition to providing other modesetting features, like i2c and DDC
  331.  * bus accessors.
  332.  */
  333. struct drm_crtc_funcs {
  334.         /* Save CRTC state */
  335.         void (*save)(struct drm_crtc *crtc); /* suspend? */
  336.         /* Restore CRTC state */
  337.         void (*restore)(struct drm_crtc *crtc); /* resume? */
  338.         /* Reset CRTC state */
  339.         void (*reset)(struct drm_crtc *crtc);
  340.  
  341.         /* cursor controls */
  342.         int (*cursor_set)(struct drm_crtc *crtc, struct drm_file *file_priv,
  343.                           uint32_t handle, uint32_t width, uint32_t height);
  344.         int (*cursor_set2)(struct drm_crtc *crtc, struct drm_file *file_priv,
  345.                            uint32_t handle, uint32_t width, uint32_t height,
  346.                            int32_t hot_x, int32_t hot_y);
  347.         int (*cursor_move)(struct drm_crtc *crtc, int x, int y);
  348.  
  349.         /* Set gamma on the CRTC */
  350.         void (*gamma_set)(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b,
  351.                           uint32_t start, uint32_t size);
  352.         /* Object destroy routine */
  353.         void (*destroy)(struct drm_crtc *crtc);
  354.  
  355.         int (*set_config)(struct drm_mode_set *set);
  356.  
  357.         /*
  358.          * Flip to the given framebuffer.  This implements the page
  359.          * flip ioctl described in drm_mode.h, specifically, the
  360.          * implementation must return immediately and block all
  361.          * rendering to the current fb until the flip has completed.
  362.          * If userspace set the event flag in the ioctl, the event
  363.          * argument will point to an event to send back when the flip
  364.          * completes, otherwise it will be NULL.
  365.          */
  366.         int (*page_flip)(struct drm_crtc *crtc,
  367.                          struct drm_framebuffer *fb,
  368.                          struct drm_pending_vblank_event *event,
  369.                          uint32_t flags);
  370.  
  371.         int (*set_property)(struct drm_crtc *crtc,
  372.                             struct drm_property *property, uint64_t val);
  373. };
  374.  
  375. /**
  376.  * drm_crtc - central CRTC control structure
  377.  * @dev: parent DRM device
  378.  * @head: list management
  379.  * @base: base KMS object for ID tracking etc.
  380.  * @enabled: is this CRTC enabled?
  381.  * @mode: current mode timings
  382.  * @hwmode: mode timings as programmed to hw regs
  383.  * @invert_dimensions: for purposes of error checking crtc vs fb sizes,
  384.  *    invert the width/height of the crtc.  This is used if the driver
  385.  *    is performing 90 or 270 degree rotated scanout
  386.  * @x: x position on screen
  387.  * @y: y position on screen
  388.  * @funcs: CRTC control functions
  389.  * @gamma_size: size of gamma ramp
  390.  * @gamma_store: gamma ramp values
  391.  * @framedur_ns: precise frame timing
  392.  * @framedur_ns: precise line timing
  393.  * @pixeldur_ns: precise pixel timing
  394.  * @helper_private: mid-layer private data
  395.  * @properties: property tracking for this CRTC
  396.  *
  397.  * Each CRTC may have one or more connectors associated with it.  This structure
  398.  * allows the CRTC to be controlled.
  399.  */
  400. struct drm_crtc {
  401.         struct drm_device *dev;
  402.         struct list_head head;
  403.  
  404.         /**
  405.          * crtc mutex
  406.          *
  407.          * This provides a read lock for the overall crtc state (mode, dpms
  408.          * state, ...) and a write lock for everything which can be update
  409.          * without a full modeset (fb, cursor data, ...)
  410.          */
  411.         struct mutex mutex;
  412.  
  413.         struct drm_mode_object base;
  414.  
  415.         /* framebuffer the connector is currently bound to */
  416.         struct drm_framebuffer *fb;
  417.  
  418.         /* Temporary tracking of the old fb while a modeset is ongoing. Used
  419.          * by drm_mode_set_config_internal to implement correct refcounting. */
  420.         struct drm_framebuffer *old_fb;
  421.  
  422.         bool enabled;
  423.  
  424.         /* Requested mode from modesetting. */
  425.         struct drm_display_mode mode;
  426.  
  427.         /* Programmed mode in hw, after adjustments for encoders,
  428.          * crtc, panel scaling etc. Needed for timestamping etc.
  429.          */
  430.         struct drm_display_mode hwmode;
  431.  
  432.         bool invert_dimensions;
  433.  
  434.         int x, y;
  435.         const struct drm_crtc_funcs *funcs;
  436.  
  437.         /* CRTC gamma size for reporting to userspace */
  438.         uint32_t gamma_size;
  439.         uint16_t *gamma_store;
  440.  
  441.         /* Constants needed for precise vblank and swap timestamping. */
  442.         s64 framedur_ns, linedur_ns, pixeldur_ns;
  443.  
  444.         /* if you are using the helper */
  445.         void *helper_private;
  446.  
  447.         struct drm_object_properties properties;
  448. };
  449.  
  450.  
  451. /**
  452.  * drm_connector_funcs - control connectors on a given device
  453.  * @dpms: set power state (see drm_crtc_funcs above)
  454.  * @save: save connector state
  455.  * @restore: restore connector state
  456.  * @reset: reset connector after state has been invalidated (e.g. resume)
  457.  * @detect: is this connector active?
  458.  * @fill_modes: fill mode list for this connector
  459.  * @set_property: property for this connector may need an update
  460.  * @destroy: make object go away
  461.  * @force: notify the driver that the connector is forced on
  462.  *
  463.  * Each CRTC may have one or more connectors attached to it.  The functions
  464.  * below allow the core DRM code to control connectors, enumerate available modes,
  465.  * etc.
  466.  */
  467. struct drm_connector_funcs {
  468.         void (*dpms)(struct drm_connector *connector, int mode);
  469.         void (*save)(struct drm_connector *connector);
  470.         void (*restore)(struct drm_connector *connector);
  471.         void (*reset)(struct drm_connector *connector);
  472.  
  473.         /* Check to see if anything is attached to the connector.
  474.          * @force is set to false whilst polling, true when checking the
  475.          * connector due to user request. @force can be used by the driver
  476.          * to avoid expensive, destructive operations during automated
  477.          * probing.
  478.          */
  479.         enum drm_connector_status (*detect)(struct drm_connector *connector,
  480.                                             bool force);
  481.         int (*fill_modes)(struct drm_connector *connector, uint32_t max_width, uint32_t max_height);
  482.         int (*set_property)(struct drm_connector *connector, struct drm_property *property,
  483.                              uint64_t val);
  484.         void (*destroy)(struct drm_connector *connector);
  485.         void (*force)(struct drm_connector *connector);
  486. };
  487.  
  488. /**
  489.  * drm_encoder_funcs - encoder controls
  490.  * @reset: reset state (e.g. at init or resume time)
  491.  * @destroy: cleanup and free associated data
  492.  *
  493.  * Encoders sit between CRTCs and connectors.
  494.  */
  495. struct drm_encoder_funcs {
  496.         void (*reset)(struct drm_encoder *encoder);
  497.         void (*destroy)(struct drm_encoder *encoder);
  498. };
  499.  
  500. #define DRM_CONNECTOR_MAX_ENCODER 3
  501.  
  502. /**
  503.  * drm_encoder - central DRM encoder structure
  504.  * @dev: parent DRM device
  505.  * @head: list management
  506.  * @base: base KMS object
  507.  * @encoder_type: one of the %DRM_MODE_ENCODER_<foo> types in drm_mode.h
  508.  * @possible_crtcs: bitmask of potential CRTC bindings
  509.  * @possible_clones: bitmask of potential sibling encoders for cloning
  510.  * @crtc: currently bound CRTC
  511.  * @bridge: bridge associated to the encoder
  512.  * @funcs: control functions
  513.  * @helper_private: mid-layer private data
  514.  *
  515.  * CRTCs drive pixels to encoders, which convert them into signals
  516.  * appropriate for a given connector or set of connectors.
  517.  */
  518. struct drm_encoder {
  519.         struct drm_device *dev;
  520.         struct list_head head;
  521.  
  522.         struct drm_mode_object base;
  523.         int encoder_type;
  524.         uint32_t possible_crtcs;
  525.         uint32_t possible_clones;
  526.  
  527.         struct drm_crtc *crtc;
  528.         struct drm_bridge *bridge;
  529.         const struct drm_encoder_funcs *funcs;
  530.         void *helper_private;
  531. };
  532.  
  533. enum drm_connector_force {
  534.         DRM_FORCE_UNSPECIFIED,
  535.         DRM_FORCE_OFF,
  536.         DRM_FORCE_ON,         /* force on analog part normally */
  537.         DRM_FORCE_ON_DIGITAL, /* for DVI-I use digital connector */
  538. };
  539.  
  540. /* should we poll this connector for connects and disconnects */
  541. /* hot plug detectable */
  542. #define DRM_CONNECTOR_POLL_HPD (1 << 0)
  543. /* poll for connections */
  544. #define DRM_CONNECTOR_POLL_CONNECT (1 << 1)
  545. /* can cleanly poll for disconnections without flickering the screen */
  546. /* DACs should rarely do this without a lot of testing */
  547. #define DRM_CONNECTOR_POLL_DISCONNECT (1 << 2)
  548.  
  549. #define MAX_ELD_BYTES   128
  550.  
  551. /**
  552.  * drm_connector - central DRM connector control structure
  553.  * @dev: parent DRM device
  554.  * @kdev: kernel device for sysfs attributes
  555.  * @attr: sysfs attributes
  556.  * @head: list management
  557.  * @base: base KMS object
  558.  * @connector_type: one of the %DRM_MODE_CONNECTOR_<foo> types from drm_mode.h
  559.  * @connector_type_id: index into connector type enum
  560.  * @interlace_allowed: can this connector handle interlaced modes?
  561.  * @doublescan_allowed: can this connector handle doublescan?
  562.  * @modes: modes available on this connector (from fill_modes() + user)
  563.  * @status: one of the drm_connector_status enums (connected, not, or unknown)
  564.  * @probed_modes: list of modes derived directly from the display
  565.  * @display_info: information about attached display (e.g. from EDID)
  566.  * @funcs: connector control functions
  567.  * @edid_blob_ptr: DRM property containing EDID if present
  568.  * @properties: property tracking for this connector
  569.  * @polled: a %DRM_CONNECTOR_POLL_<foo> value for core driven polling
  570.  * @dpms: current dpms state
  571.  * @helper_private: mid-layer private data
  572.  * @force: a %DRM_FORCE_<foo> state for forced mode sets
  573.  * @encoder_ids: valid encoders for this connector
  574.  * @encoder: encoder driving this connector, if any
  575.  * @eld: EDID-like data, if present
  576.  * @dvi_dual: dual link DVI, if found
  577.  * @max_tmds_clock: max clock rate, if found
  578.  * @latency_present: AV delay info from ELD, if found
  579.  * @video_latency: video latency info from ELD, if found
  580.  * @audio_latency: audio latency info from ELD, if found
  581.  * @null_edid_counter: track sinks that give us all zeros for the EDID
  582.  *
  583.  * Each connector may be connected to one or more CRTCs, or may be clonable by
  584.  * another connector if they can share a CRTC.  Each connector also has a specific
  585.  * position in the broader display (referred to as a 'screen' though it could
  586.  * span multiple monitors).
  587.  */
  588. struct drm_connector {
  589.         struct drm_device *dev;
  590.         struct device kdev;
  591.         struct device_attribute *attr;
  592.         struct list_head head;
  593.  
  594.         struct drm_mode_object base;
  595.  
  596.         int connector_type;
  597.         int connector_type_id;
  598.         bool interlace_allowed;
  599.         bool doublescan_allowed;
  600.         struct list_head modes; /* list of modes on this connector */
  601.  
  602.         enum drm_connector_status status;
  603.  
  604.         /* these are modes added by probing with DDC or the BIOS */
  605.         struct list_head probed_modes;
  606.  
  607.         struct drm_display_info display_info;
  608.         const struct drm_connector_funcs *funcs;
  609.  
  610.         struct drm_property_blob *edid_blob_ptr;
  611.         struct drm_object_properties properties;
  612.  
  613.         uint8_t polled; /* DRM_CONNECTOR_POLL_* */
  614.  
  615.         /* requested DPMS state */
  616.         int dpms;
  617.  
  618.         void *helper_private;
  619.  
  620.         /* forced on connector */
  621.         enum drm_connector_force force;
  622.         uint32_t encoder_ids[DRM_CONNECTOR_MAX_ENCODER];
  623.         struct drm_encoder *encoder; /* currently active encoder */
  624.  
  625.         /* EDID bits */
  626.         uint8_t eld[MAX_ELD_BYTES];
  627.         bool dvi_dual;
  628.         int max_tmds_clock;     /* in MHz */
  629.         bool latency_present[2];
  630.         int video_latency[2];   /* [0]: progressive, [1]: interlaced */
  631.         int audio_latency[2];
  632.         int null_edid_counter; /* needed to workaround some HW bugs where we get all 0s */
  633.         unsigned bad_edid_counter;
  634. };
  635.  
  636. /**
  637.  * drm_plane_funcs - driver plane control functions
  638.  * @update_plane: update the plane configuration
  639.  * @disable_plane: shut down the plane
  640.  * @destroy: clean up plane resources
  641.  * @set_property: called when a property is changed
  642.  */
  643. struct drm_plane_funcs {
  644.         int (*update_plane)(struct drm_plane *plane,
  645.                             struct drm_crtc *crtc, struct drm_framebuffer *fb,
  646.                             int crtc_x, int crtc_y,
  647.                             unsigned int crtc_w, unsigned int crtc_h,
  648.                             uint32_t src_x, uint32_t src_y,
  649.                             uint32_t src_w, uint32_t src_h);
  650.         int (*disable_plane)(struct drm_plane *plane);
  651.         void (*destroy)(struct drm_plane *plane);
  652.  
  653.         int (*set_property)(struct drm_plane *plane,
  654.                             struct drm_property *property, uint64_t val);
  655. };
  656.  
  657. /**
  658.  * drm_plane - central DRM plane control structure
  659.  * @dev: DRM device this plane belongs to
  660.  * @head: for list management
  661.  * @base: base mode object
  662.  * @possible_crtcs: pipes this plane can be bound to
  663.  * @format_types: array of formats supported by this plane
  664.  * @format_count: number of formats supported
  665.  * @crtc: currently bound CRTC
  666.  * @fb: currently bound fb
  667.  * @funcs: helper functions
  668.  * @properties: property tracking for this plane
  669.  */
  670. struct drm_plane {
  671.         struct drm_device *dev;
  672.         struct list_head head;
  673.  
  674.         struct drm_mode_object base;
  675.  
  676.         uint32_t possible_crtcs;
  677.         uint32_t *format_types;
  678.         uint32_t format_count;
  679.  
  680.         struct drm_crtc *crtc;
  681.         struct drm_framebuffer *fb;
  682.  
  683.         const struct drm_plane_funcs *funcs;
  684.  
  685.         struct drm_object_properties properties;
  686. };
  687.  
  688. /**
  689.  * drm_bridge_funcs - drm_bridge control functions
  690.  * @mode_fixup: Try to fixup (or reject entirely) proposed mode for this bridge
  691.  * @disable: Called right before encoder prepare, disables the bridge
  692.  * @post_disable: Called right after encoder prepare, for lockstepped disable
  693.  * @mode_set: Set this mode to the bridge
  694.  * @pre_enable: Called right before encoder commit, for lockstepped commit
  695.  * @enable: Called right after encoder commit, enables the bridge
  696.  * @destroy: make object go away
  697.  */
  698. struct drm_bridge_funcs {
  699.         bool (*mode_fixup)(struct drm_bridge *bridge,
  700.                            const struct drm_display_mode *mode,
  701.                            struct drm_display_mode *adjusted_mode);
  702.         void (*disable)(struct drm_bridge *bridge);
  703.         void (*post_disable)(struct drm_bridge *bridge);
  704.         void (*mode_set)(struct drm_bridge *bridge,
  705.                          struct drm_display_mode *mode,
  706.                          struct drm_display_mode *adjusted_mode);
  707.         void (*pre_enable)(struct drm_bridge *bridge);
  708.         void (*enable)(struct drm_bridge *bridge);
  709.         void (*destroy)(struct drm_bridge *bridge);
  710. };
  711.  
  712. /**
  713.  * drm_bridge - central DRM bridge control structure
  714.  * @dev: DRM device this bridge belongs to
  715.  * @head: list management
  716.  * @base: base mode object
  717.  * @funcs: control functions
  718.  * @driver_private: pointer to the bridge driver's internal context
  719.  */
  720. struct drm_bridge {
  721.         struct drm_device *dev;
  722.         struct list_head head;
  723.  
  724.         struct drm_mode_object base;
  725.  
  726.         const struct drm_bridge_funcs *funcs;
  727.         void *driver_private;
  728. };
  729.  
  730. /**
  731.  * drm_mode_set - new values for a CRTC config change
  732.  * @head: list management
  733.  * @fb: framebuffer to use for new config
  734.  * @crtc: CRTC whose configuration we're about to change
  735.  * @mode: mode timings to use
  736.  * @x: position of this CRTC relative to @fb
  737.  * @y: position of this CRTC relative to @fb
  738.  * @connectors: array of connectors to drive with this CRTC if possible
  739.  * @num_connectors: size of @connectors array
  740.  *
  741.  * Represents a single crtc the connectors that it drives with what mode
  742.  * and from which framebuffer it scans out from.
  743.  *
  744.  * This is used to set modes.
  745.  */
  746. struct drm_mode_set {
  747.         struct drm_framebuffer *fb;
  748.         struct drm_crtc *crtc;
  749.         struct drm_display_mode *mode;
  750.  
  751.         uint32_t x;
  752.         uint32_t y;
  753.  
  754.         struct drm_connector **connectors;
  755.         size_t num_connectors;
  756. };
  757.  
  758. /**
  759.  * struct drm_mode_config_funcs - basic driver provided mode setting functions
  760.  * @fb_create: create a new framebuffer object
  761.  * @output_poll_changed: function to handle output configuration changes
  762.  *
  763.  * Some global (i.e. not per-CRTC, connector, etc) mode setting functions that
  764.  * involve drivers.
  765.  */
  766. struct drm_mode_config_funcs {
  767.         struct drm_framebuffer *(*fb_create)(struct drm_device *dev,
  768.                                              struct drm_file *file_priv,
  769.                                              struct drm_mode_fb_cmd2 *mode_cmd);
  770.         void (*output_poll_changed)(struct drm_device *dev);
  771. };
  772.  
  773. /**
  774.  * drm_mode_group - group of mode setting resources for potential sub-grouping
  775.  * @num_crtcs: CRTC count
  776.  * @num_encoders: encoder count
  777.  * @num_connectors: connector count
  778.  * @id_list: list of KMS object IDs in this group
  779.  *
  780.  * Currently this simply tracks the global mode setting state.  But in the
  781.  * future it could allow groups of objects to be set aside into independent
  782.  * control groups for use by different user level processes (e.g. two X servers
  783.  * running simultaneously on different heads, each with their own mode
  784.  * configuration and freedom of mode setting).
  785.  */
  786. struct drm_mode_group {
  787.         uint32_t num_crtcs;
  788.         uint32_t num_encoders;
  789.         uint32_t num_connectors;
  790.         uint32_t num_bridges;
  791.  
  792.         /* list of object IDs for this group */
  793.         uint32_t *id_list;
  794. };
  795.  
  796. /**
  797.  * drm_mode_config - Mode configuration control structure
  798.  * @mutex: mutex protecting KMS related lists and structures
  799.  * @idr_mutex: mutex for KMS ID allocation and management
  800.  * @crtc_idr: main KMS ID tracking object
  801.  * @num_fb: number of fbs available
  802.  * @fb_list: list of framebuffers available
  803.  * @num_connector: number of connectors on this device
  804.  * @connector_list: list of connector objects
  805.  * @num_bridge: number of bridges on this device
  806.  * @bridge_list: list of bridge objects
  807.  * @num_encoder: number of encoders on this device
  808.  * @encoder_list: list of encoder objects
  809.  * @num_crtc: number of CRTCs on this device
  810.  * @crtc_list: list of CRTC objects
  811.  * @min_width: minimum pixel width on this device
  812.  * @min_height: minimum pixel height on this device
  813.  * @max_width: maximum pixel width on this device
  814.  * @max_height: maximum pixel height on this device
  815.  * @funcs: core driver provided mode setting functions
  816.  * @fb_base: base address of the framebuffer
  817.  * @poll_enabled: track polling status for this device
  818.  * @output_poll_work: delayed work for polling in process context
  819.  * @*_property: core property tracking
  820.  *
  821.  * Core mode resource tracking structure.  All CRTC, encoders, and connectors
  822.  * enumerated by the driver are added here, as are global properties.  Some
  823.  * global restrictions are also here, e.g. dimension restrictions.
  824.  */
  825. struct drm_mode_config {
  826.         struct mutex mutex; /* protects configuration (mode lists etc.) */
  827.         struct mutex idr_mutex; /* for IDR management */
  828.     struct idr crtc_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */
  829.         /* this is limited to one for now */
  830.  
  831.  
  832.         /**
  833.          * fb_lock - mutex to protect fb state
  834.          *
  835.          * Besides the global fb list his also protects the fbs list in the
  836.          * file_priv
  837.          */
  838.         struct mutex fb_lock;
  839.         int num_fb;
  840.         struct list_head fb_list;
  841.  
  842.         int num_connector;
  843.         struct list_head connector_list;
  844.         int num_bridge;
  845.         struct list_head bridge_list;
  846.         int num_encoder;
  847.         struct list_head encoder_list;
  848.         int num_plane;
  849.         struct list_head plane_list;
  850.  
  851.         int num_crtc;
  852.         struct list_head crtc_list;
  853.  
  854.         struct list_head property_list;
  855.  
  856.         int min_width, min_height;
  857.         int max_width, max_height;
  858.         const struct drm_mode_config_funcs *funcs;
  859.         resource_size_t fb_base;
  860.  
  861.         /* output poll support */
  862.         bool poll_enabled;
  863.         bool poll_running;
  864.         struct delayed_work output_poll_work;
  865.  
  866.         /* pointers to standard properties */
  867.         struct list_head property_blob_list;
  868.         struct drm_property *edid_property;
  869.         struct drm_property *dpms_property;
  870.  
  871.         /* DVI-I properties */
  872.         struct drm_property *dvi_i_subconnector_property;
  873.         struct drm_property *dvi_i_select_subconnector_property;
  874.  
  875.         /* TV properties */
  876.         struct drm_property *tv_subconnector_property;
  877.         struct drm_property *tv_select_subconnector_property;
  878.         struct drm_property *tv_mode_property;
  879.         struct drm_property *tv_left_margin_property;
  880.         struct drm_property *tv_right_margin_property;
  881.         struct drm_property *tv_top_margin_property;
  882.         struct drm_property *tv_bottom_margin_property;
  883.         struct drm_property *tv_brightness_property;
  884.         struct drm_property *tv_contrast_property;
  885.         struct drm_property *tv_flicker_reduction_property;
  886.         struct drm_property *tv_overscan_property;
  887.         struct drm_property *tv_saturation_property;
  888.         struct drm_property *tv_hue_property;
  889.  
  890.         /* Optional properties */
  891.         struct drm_property *scaling_mode_property;
  892.         struct drm_property *dirty_info_property;
  893.  
  894.         /* dumb ioctl parameters */
  895.         uint32_t preferred_depth, prefer_shadow;
  896.  
  897.         /* whether async page flip is supported or not */
  898.         bool async_page_flip;
  899. };
  900.  
  901. #define obj_to_crtc(x) container_of(x, struct drm_crtc, base)
  902. #define obj_to_connector(x) container_of(x, struct drm_connector, base)
  903. #define obj_to_encoder(x) container_of(x, struct drm_encoder, base)
  904. #define obj_to_mode(x) container_of(x, struct drm_display_mode, base)
  905. #define obj_to_fb(x) container_of(x, struct drm_framebuffer, base)
  906. #define obj_to_property(x) container_of(x, struct drm_property, base)
  907. #define obj_to_blob(x) container_of(x, struct drm_property_blob, base)
  908. #define obj_to_plane(x) container_of(x, struct drm_plane, base)
  909.  
  910. struct drm_prop_enum_list {
  911.         int type;
  912.         char *name;
  913. };
  914.  
  915. extern void drm_modeset_lock_all(struct drm_device *dev);
  916. extern void drm_modeset_unlock_all(struct drm_device *dev);
  917. extern void drm_warn_on_modeset_not_all_locked(struct drm_device *dev);
  918.  
  919. extern int drm_crtc_init(struct drm_device *dev,
  920.                           struct drm_crtc *crtc,
  921.                           const struct drm_crtc_funcs *funcs);
  922. extern void drm_crtc_cleanup(struct drm_crtc *crtc);
  923.  
  924. extern void drm_connector_ida_init(void);
  925. extern void drm_connector_ida_destroy(void);
  926. extern int drm_connector_init(struct drm_device *dev,
  927.                             struct drm_connector *connector,
  928.                             const struct drm_connector_funcs *funcs,
  929.                             int connector_type);
  930.  
  931. extern void drm_connector_cleanup(struct drm_connector *connector);
  932. /* helper to unplug all connectors from sysfs for device */
  933. extern void drm_connector_unplug_all(struct drm_device *dev);
  934.  
  935. extern int drm_bridge_init(struct drm_device *dev, struct drm_bridge *bridge,
  936.                            const struct drm_bridge_funcs *funcs);
  937. extern void drm_bridge_cleanup(struct drm_bridge *bridge);
  938.  
  939. extern int drm_encoder_init(struct drm_device *dev,
  940.                              struct drm_encoder *encoder,
  941.                              const struct drm_encoder_funcs *funcs,
  942.                              int encoder_type);
  943.  
  944. extern int drm_plane_init(struct drm_device *dev,
  945.                           struct drm_plane *plane,
  946.                           unsigned long possible_crtcs,
  947.                           const struct drm_plane_funcs *funcs,
  948.                           const uint32_t *formats, uint32_t format_count,
  949.                           bool priv);
  950. extern void drm_plane_cleanup(struct drm_plane *plane);
  951. extern void drm_plane_force_disable(struct drm_plane *plane);
  952.  
  953. extern void drm_encoder_cleanup(struct drm_encoder *encoder);
  954.  
  955. extern const char *drm_get_connector_name(const struct drm_connector *connector);
  956. extern const char *drm_get_connector_status_name(enum drm_connector_status status);
  957. extern const char *drm_get_dpms_name(int val);
  958. extern const char *drm_get_dvi_i_subconnector_name(int val);
  959. extern const char *drm_get_dvi_i_select_name(int val);
  960. extern const char *drm_get_tv_subconnector_name(int val);
  961. extern const char *drm_get_tv_select_name(int val);
  962. extern void drm_fb_release(struct drm_file *file_priv);
  963. extern int drm_mode_group_init_legacy_group(struct drm_device *dev, struct drm_mode_group *group);
  964. extern bool drm_probe_ddc(struct i2c_adapter *adapter);
  965. extern struct edid *drm_get_edid(struct drm_connector *connector,
  966.                                  struct i2c_adapter *adapter);
  967. extern int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid);
  968. extern void drm_mode_probed_add(struct drm_connector *connector, struct drm_display_mode *mode);
  969. extern void drm_mode_copy(struct drm_display_mode *dst, const struct drm_display_mode *src);
  970. extern struct drm_display_mode *drm_mode_duplicate(struct drm_device *dev,
  971.                                                    const struct drm_display_mode *mode);
  972. extern void drm_mode_debug_printmodeline(const struct drm_display_mode *mode);
  973. extern void drm_mode_config_init(struct drm_device *dev);
  974. extern void drm_mode_config_reset(struct drm_device *dev);
  975. extern void drm_mode_config_cleanup(struct drm_device *dev);
  976. extern void drm_mode_set_name(struct drm_display_mode *mode);
  977. extern bool drm_mode_equal(const struct drm_display_mode *mode1, const struct drm_display_mode *mode2);
  978. extern bool drm_mode_equal_no_clocks(const struct drm_display_mode *mode1, const struct drm_display_mode *mode2);
  979. extern int drm_mode_width(const struct drm_display_mode *mode);
  980. extern int drm_mode_height(const struct drm_display_mode *mode);
  981.  
  982. /* for us by fb module */
  983. extern struct drm_display_mode *drm_mode_create(struct drm_device *dev);
  984. extern void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode);
  985. extern void drm_mode_validate_size(struct drm_device *dev,
  986.                   struct list_head *mode_list,
  987.                   int maxX, int maxY, int maxPitch);
  988. extern void drm_mode_prune_invalid(struct drm_device *dev,
  989.                   struct list_head *mode_list, bool verbose);
  990. extern void drm_mode_sort(struct list_head *mode_list);
  991. extern int drm_mode_hsync(const struct drm_display_mode *mode);
  992. extern int drm_mode_vrefresh(const struct drm_display_mode *mode);
  993. extern void drm_mode_set_crtcinfo(struct drm_display_mode *p,
  994.                                   int adjust_flags);
  995. extern void drm_mode_connector_list_update(struct drm_connector *connector);
  996. extern int drm_mode_connector_update_edid_property(struct drm_connector *connector,
  997.                        struct edid *edid);
  998. extern int drm_object_property_set_value(struct drm_mode_object *obj,
  999.                                          struct drm_property *property,
  1000.                                          uint64_t val);
  1001. extern int drm_object_property_get_value(struct drm_mode_object *obj,
  1002.                                          struct drm_property *property,
  1003.                                          uint64_t *value);
  1004. extern int drm_framebuffer_init(struct drm_device *dev,
  1005.                                 struct drm_framebuffer *fb,
  1006.                                 const struct drm_framebuffer_funcs *funcs);
  1007. extern struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev,
  1008.                                                       uint32_t id);
  1009. extern void drm_framebuffer_unreference(struct drm_framebuffer *fb);
  1010. extern void drm_framebuffer_reference(struct drm_framebuffer *fb);
  1011. extern void drm_framebuffer_remove(struct drm_framebuffer *fb);
  1012. extern void drm_framebuffer_cleanup(struct drm_framebuffer *fb);
  1013. extern void drm_framebuffer_unregister_private(struct drm_framebuffer *fb);
  1014.  
  1015. extern void drm_object_attach_property(struct drm_mode_object *obj,
  1016.                                        struct drm_property *property,
  1017.                                        uint64_t init_val);
  1018. extern struct drm_property *drm_property_create(struct drm_device *dev, int flags,
  1019.                                                 const char *name, int num_values);
  1020. extern struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags,
  1021.                                          const char *name,
  1022.                                          const struct drm_prop_enum_list *props,
  1023.                                          int num_values);
  1024. struct drm_property *drm_property_create_bitmask(struct drm_device *dev,
  1025.                                          int flags, const char *name,
  1026.                                          const struct drm_prop_enum_list *props,
  1027.                                          int num_values);
  1028. struct drm_property *drm_property_create_range(struct drm_device *dev, int flags,
  1029.                                          const char *name,
  1030.                                          uint64_t min, uint64_t max);
  1031. extern void drm_property_destroy(struct drm_device *dev, struct drm_property *property);
  1032. extern int drm_property_add_enum(struct drm_property *property, int index,
  1033.                                  uint64_t value, const char *name);
  1034. extern int drm_mode_create_dvi_i_properties(struct drm_device *dev);
  1035. extern int drm_mode_create_tv_properties(struct drm_device *dev, int num_formats,
  1036.                                      char *formats[]);
  1037. extern int drm_mode_create_scaling_mode_property(struct drm_device *dev);
  1038. extern int drm_mode_create_dirty_info_property(struct drm_device *dev);
  1039. extern const char *drm_get_encoder_name(const struct drm_encoder *encoder);
  1040.  
  1041. extern int drm_mode_connector_attach_encoder(struct drm_connector *connector,
  1042.                                              struct drm_encoder *encoder);
  1043. extern void drm_mode_connector_detach_encoder(struct drm_connector *connector,
  1044.                                            struct drm_encoder *encoder);
  1045. extern int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
  1046.                                          int gamma_size);
  1047. extern struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
  1048.                 uint32_t id, uint32_t type);
  1049. /* IOCTLs */
  1050. extern int drm_mode_getresources(struct drm_device *dev,
  1051.                                  void *data, struct drm_file *file_priv);
  1052. extern int drm_mode_getplane_res(struct drm_device *dev, void *data,
  1053.                                    struct drm_file *file_priv);
  1054. extern int drm_mode_getcrtc(struct drm_device *dev,
  1055.                             void *data, struct drm_file *file_priv);
  1056. extern int drm_mode_getconnector(struct drm_device *dev,
  1057.                               void *data, struct drm_file *file_priv);
  1058. extern int drm_mode_set_config_internal(struct drm_mode_set *set);
  1059. extern int drm_mode_setcrtc(struct drm_device *dev,
  1060.                             void *data, struct drm_file *file_priv);
  1061. extern int drm_mode_getplane(struct drm_device *dev,
  1062.                                void *data, struct drm_file *file_priv);
  1063. extern int drm_mode_setplane(struct drm_device *dev,
  1064.                                void *data, struct drm_file *file_priv);
  1065. extern int drm_mode_cursor_ioctl(struct drm_device *dev,
  1066.                                 void *data, struct drm_file *file_priv);
  1067. extern int drm_mode_cursor2_ioctl(struct drm_device *dev,
  1068.                                 void *data, struct drm_file *file_priv);
  1069. extern int drm_mode_addfb(struct drm_device *dev,
  1070.                           void *data, struct drm_file *file_priv);
  1071. extern int drm_mode_addfb2(struct drm_device *dev,
  1072.                            void *data, struct drm_file *file_priv);
  1073. extern uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth);
  1074. extern int drm_mode_rmfb(struct drm_device *dev,
  1075.                          void *data, struct drm_file *file_priv);
  1076. extern int drm_mode_getfb(struct drm_device *dev,
  1077.                           void *data, struct drm_file *file_priv);
  1078. extern int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
  1079.                                   void *data, struct drm_file *file_priv);
  1080.  
  1081. extern int drm_mode_getproperty_ioctl(struct drm_device *dev,
  1082.                                       void *data, struct drm_file *file_priv);
  1083. extern int drm_mode_getblob_ioctl(struct drm_device *dev,
  1084.                                   void *data, struct drm_file *file_priv);
  1085. extern int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
  1086.                                               void *data, struct drm_file *file_priv);
  1087. extern int drm_mode_getencoder(struct drm_device *dev,
  1088.                                void *data, struct drm_file *file_priv);
  1089. extern int drm_mode_gamma_get_ioctl(struct drm_device *dev,
  1090.                                     void *data, struct drm_file *file_priv);
  1091. extern int drm_mode_gamma_set_ioctl(struct drm_device *dev,
  1092.                                     void *data, struct drm_file *file_priv);
  1093. extern u8 drm_match_cea_mode(const struct drm_display_mode *to_match);
  1094. extern bool drm_detect_hdmi_monitor(struct edid *edid);
  1095. extern bool drm_detect_monitor_audio(struct edid *edid);
  1096. extern bool drm_rgb_quant_range_selectable(struct edid *edid);
  1097. extern int drm_mode_page_flip_ioctl(struct drm_device *dev,
  1098.                                     void *data, struct drm_file *file_priv);
  1099. extern struct drm_display_mode *drm_cvt_mode(struct drm_device *dev,
  1100.                                 int hdisplay, int vdisplay, int vrefresh,
  1101.                                 bool reduced, bool interlaced, bool margins);
  1102. extern struct drm_display_mode *drm_gtf_mode(struct drm_device *dev,
  1103.                                 int hdisplay, int vdisplay, int vrefresh,
  1104.                                 bool interlaced, int margins);
  1105. extern struct drm_display_mode *drm_gtf_mode_complex(struct drm_device *dev,
  1106.                                 int hdisplay, int vdisplay, int vrefresh,
  1107.                                 bool interlaced, int margins, int GTF_M,
  1108.                                 int GTF_2C, int GTF_K, int GTF_2J);
  1109. extern int drm_add_modes_noedid(struct drm_connector *connector,
  1110.                                 int hdisplay, int vdisplay);
  1111.  
  1112. extern int drm_edid_header_is_valid(const u8 *raw_edid);
  1113. extern bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid);
  1114. extern bool drm_edid_is_valid(struct edid *edid);
  1115. struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
  1116.                                            int hsize, int vsize, int fresh,
  1117.                                            bool rb);
  1118.  
  1119. extern int drm_mode_create_dumb_ioctl(struct drm_device *dev,
  1120.                                       void *data, struct drm_file *file_priv);
  1121. extern int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
  1122.                                     void *data, struct drm_file *file_priv);
  1123. extern int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
  1124.                                       void *data, struct drm_file *file_priv);
  1125. extern int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
  1126.                                              struct drm_file *file_priv);
  1127. extern int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
  1128.                                            struct drm_file *file_priv);
  1129.  
  1130. extern void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
  1131.                                  int *bpp);
  1132. extern int drm_format_num_planes(uint32_t format);
  1133. extern int drm_format_plane_cpp(uint32_t format, int plane);
  1134. extern int drm_format_horz_chroma_subsampling(uint32_t format);
  1135. extern int drm_format_vert_chroma_subsampling(uint32_t format);
  1136. extern const char *drm_get_format_name(uint32_t format);
  1137.  
  1138. #endif /* __DRM_CRTC_H__ */
  1139.