Subversion Repositories Kolibri OS

Rev

Rev 4103 | Rev 5056 | Go to most recent revision | Blame | Compare with Previous | Last modification | View Log | Download | RSS feed

  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.         int 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. extern unsigned int drm_crtc_index(struct drm_crtc *crtc);
  935.  
  936. /**
  937.  * drm_crtc_mask - find the mask of a registered CRTC
  938.  * @crtc: CRTC to find mask for
  939.  *
  940.  * Given a registered CRTC, return the mask bit of that CRTC for an
  941.  * encoder's possible_crtcs field.
  942.  */
  943. static inline uint32_t drm_crtc_mask(struct drm_crtc *crtc)
  944. {
  945.         return 1 << drm_crtc_index(crtc);
  946. }
  947.  
  948. extern void drm_connector_ida_init(void);
  949. extern void drm_connector_ida_destroy(void);
  950. extern int drm_connector_init(struct drm_device *dev,
  951.                             struct drm_connector *connector,
  952.                             const struct drm_connector_funcs *funcs,
  953.                             int connector_type);
  954.  
  955. extern void drm_connector_cleanup(struct drm_connector *connector);
  956. /* helper to unplug all connectors from sysfs for device */
  957. extern void drm_connector_unplug_all(struct drm_device *dev);
  958.  
  959. extern int drm_bridge_init(struct drm_device *dev, struct drm_bridge *bridge,
  960.                            const struct drm_bridge_funcs *funcs);
  961. extern void drm_bridge_cleanup(struct drm_bridge *bridge);
  962.  
  963. extern int drm_encoder_init(struct drm_device *dev,
  964.                              struct drm_encoder *encoder,
  965.                              const struct drm_encoder_funcs *funcs,
  966.                              int encoder_type);
  967.  
  968. /**
  969.  * drm_encoder_crtc_ok - can a given crtc drive a given encoder?
  970.  * @encoder: encoder to test
  971.  * @crtc: crtc to test
  972.  *
  973.  * Return false if @encoder can't be driven by @crtc, true otherwise.
  974.  */
  975. static inline bool drm_encoder_crtc_ok(struct drm_encoder *encoder,
  976.                                        struct drm_crtc *crtc)
  977. {
  978.         return !!(encoder->possible_crtcs & drm_crtc_mask(crtc));
  979. }
  980.  
  981. extern int drm_plane_init(struct drm_device *dev,
  982.                           struct drm_plane *plane,
  983.                           unsigned long possible_crtcs,
  984.                           const struct drm_plane_funcs *funcs,
  985.                           const uint32_t *formats, uint32_t format_count,
  986.                           bool priv);
  987. extern void drm_plane_cleanup(struct drm_plane *plane);
  988. extern void drm_plane_force_disable(struct drm_plane *plane);
  989.  
  990. extern void drm_encoder_cleanup(struct drm_encoder *encoder);
  991.  
  992. extern const char *drm_get_connector_name(const struct drm_connector *connector);
  993. extern const char *drm_get_connector_status_name(enum drm_connector_status status);
  994. extern const char *drm_get_dpms_name(int val);
  995. extern const char *drm_get_dvi_i_subconnector_name(int val);
  996. extern const char *drm_get_dvi_i_select_name(int val);
  997. extern const char *drm_get_tv_subconnector_name(int val);
  998. extern const char *drm_get_tv_select_name(int val);
  999. extern void drm_fb_release(struct drm_file *file_priv);
  1000. extern int drm_mode_group_init_legacy_group(struct drm_device *dev, struct drm_mode_group *group);
  1001. extern bool drm_probe_ddc(struct i2c_adapter *adapter);
  1002. extern struct edid *drm_get_edid(struct drm_connector *connector,
  1003.                                  struct i2c_adapter *adapter);
  1004. extern struct edid *drm_edid_duplicate(const struct edid *edid);
  1005. extern int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid);
  1006. extern void drm_mode_probed_add(struct drm_connector *connector, struct drm_display_mode *mode);
  1007. extern void drm_mode_copy(struct drm_display_mode *dst, const struct drm_display_mode *src);
  1008. extern struct drm_display_mode *drm_mode_duplicate(struct drm_device *dev,
  1009.                                                    const struct drm_display_mode *mode);
  1010. extern void drm_mode_debug_printmodeline(const struct drm_display_mode *mode);
  1011. extern void drm_mode_config_init(struct drm_device *dev);
  1012. extern void drm_mode_config_reset(struct drm_device *dev);
  1013. extern void drm_mode_config_cleanup(struct drm_device *dev);
  1014. extern void drm_mode_set_name(struct drm_display_mode *mode);
  1015. extern bool drm_mode_equal(const struct drm_display_mode *mode1, const struct drm_display_mode *mode2);
  1016. extern bool drm_mode_equal_no_clocks_no_stereo(const struct drm_display_mode *mode1, const struct drm_display_mode *mode2);
  1017. extern int drm_mode_width(const struct drm_display_mode *mode);
  1018. extern int drm_mode_height(const struct drm_display_mode *mode);
  1019.  
  1020. /* for us by fb module */
  1021. extern struct drm_display_mode *drm_mode_create(struct drm_device *dev);
  1022. extern void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode);
  1023. extern void drm_mode_validate_size(struct drm_device *dev,
  1024.                   struct list_head *mode_list,
  1025.                   int maxX, int maxY, int maxPitch);
  1026. extern void drm_mode_prune_invalid(struct drm_device *dev,
  1027.                   struct list_head *mode_list, bool verbose);
  1028. extern void drm_mode_sort(struct list_head *mode_list);
  1029. extern int drm_mode_hsync(const struct drm_display_mode *mode);
  1030. extern int drm_mode_vrefresh(const struct drm_display_mode *mode);
  1031. extern void drm_mode_set_crtcinfo(struct drm_display_mode *p,
  1032.                                   int adjust_flags);
  1033. extern void drm_mode_connector_list_update(struct drm_connector *connector);
  1034. extern int drm_mode_connector_update_edid_property(struct drm_connector *connector,
  1035.                        struct edid *edid);
  1036. extern int drm_object_property_set_value(struct drm_mode_object *obj,
  1037.                                          struct drm_property *property,
  1038.                                          uint64_t val);
  1039. extern int drm_object_property_get_value(struct drm_mode_object *obj,
  1040.                                          struct drm_property *property,
  1041.                                          uint64_t *value);
  1042. extern int drm_framebuffer_init(struct drm_device *dev,
  1043.                                 struct drm_framebuffer *fb,
  1044.                                 const struct drm_framebuffer_funcs *funcs);
  1045. extern struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev,
  1046.                                                       uint32_t id);
  1047. extern void drm_framebuffer_unreference(struct drm_framebuffer *fb);
  1048. extern void drm_framebuffer_reference(struct drm_framebuffer *fb);
  1049. extern void drm_framebuffer_remove(struct drm_framebuffer *fb);
  1050. extern void drm_framebuffer_cleanup(struct drm_framebuffer *fb);
  1051. extern void drm_framebuffer_unregister_private(struct drm_framebuffer *fb);
  1052.  
  1053. extern void drm_object_attach_property(struct drm_mode_object *obj,
  1054.                                        struct drm_property *property,
  1055.                                        uint64_t init_val);
  1056. extern struct drm_property *drm_property_create(struct drm_device *dev, int flags,
  1057.                                                 const char *name, int num_values);
  1058. extern struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags,
  1059.                                          const char *name,
  1060.                                          const struct drm_prop_enum_list *props,
  1061.                                          int num_values);
  1062. struct drm_property *drm_property_create_bitmask(struct drm_device *dev,
  1063.                                          int flags, const char *name,
  1064.                                          const struct drm_prop_enum_list *props,
  1065.                                          int num_values);
  1066. struct drm_property *drm_property_create_range(struct drm_device *dev, int flags,
  1067.                                          const char *name,
  1068.                                          uint64_t min, uint64_t max);
  1069. extern void drm_property_destroy(struct drm_device *dev, struct drm_property *property);
  1070. extern int drm_property_add_enum(struct drm_property *property, int index,
  1071.                                  uint64_t value, const char *name);
  1072. extern int drm_mode_create_dvi_i_properties(struct drm_device *dev);
  1073. extern int drm_mode_create_tv_properties(struct drm_device *dev, int num_formats,
  1074.                                      char *formats[]);
  1075. extern int drm_mode_create_scaling_mode_property(struct drm_device *dev);
  1076. extern int drm_mode_create_dirty_info_property(struct drm_device *dev);
  1077. extern const char *drm_get_encoder_name(const struct drm_encoder *encoder);
  1078.  
  1079. extern int drm_mode_connector_attach_encoder(struct drm_connector *connector,
  1080.                                              struct drm_encoder *encoder);
  1081. extern void drm_mode_connector_detach_encoder(struct drm_connector *connector,
  1082.                                            struct drm_encoder *encoder);
  1083. extern int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
  1084.                                          int gamma_size);
  1085. extern struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
  1086.                 uint32_t id, uint32_t type);
  1087. /* IOCTLs */
  1088. extern int drm_mode_getresources(struct drm_device *dev,
  1089.                                  void *data, struct drm_file *file_priv);
  1090. extern int drm_mode_getplane_res(struct drm_device *dev, void *data,
  1091.                                    struct drm_file *file_priv);
  1092. extern int drm_mode_getcrtc(struct drm_device *dev,
  1093.                             void *data, struct drm_file *file_priv);
  1094. extern int drm_mode_getconnector(struct drm_device *dev,
  1095.                               void *data, struct drm_file *file_priv);
  1096. extern int drm_mode_set_config_internal(struct drm_mode_set *set);
  1097. extern int drm_mode_setcrtc(struct drm_device *dev,
  1098.                             void *data, struct drm_file *file_priv);
  1099. extern int drm_mode_getplane(struct drm_device *dev,
  1100.                                void *data, struct drm_file *file_priv);
  1101. extern int drm_mode_setplane(struct drm_device *dev,
  1102.                                void *data, struct drm_file *file_priv);
  1103. extern int drm_mode_cursor_ioctl(struct drm_device *dev,
  1104.                                 void *data, struct drm_file *file_priv);
  1105. extern int drm_mode_cursor2_ioctl(struct drm_device *dev,
  1106.                                 void *data, struct drm_file *file_priv);
  1107. extern int drm_mode_addfb(struct drm_device *dev,
  1108.                           void *data, struct drm_file *file_priv);
  1109. extern int drm_mode_addfb2(struct drm_device *dev,
  1110.                            void *data, struct drm_file *file_priv);
  1111. extern uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth);
  1112. extern int drm_mode_rmfb(struct drm_device *dev,
  1113.                          void *data, struct drm_file *file_priv);
  1114. extern int drm_mode_getfb(struct drm_device *dev,
  1115.                           void *data, struct drm_file *file_priv);
  1116. extern int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
  1117.                                   void *data, struct drm_file *file_priv);
  1118.  
  1119. extern int drm_mode_getproperty_ioctl(struct drm_device *dev,
  1120.                                       void *data, struct drm_file *file_priv);
  1121. extern int drm_mode_getblob_ioctl(struct drm_device *dev,
  1122.                                   void *data, struct drm_file *file_priv);
  1123. extern int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
  1124.                                               void *data, struct drm_file *file_priv);
  1125. extern int drm_mode_getencoder(struct drm_device *dev,
  1126.                                void *data, struct drm_file *file_priv);
  1127. extern int drm_mode_gamma_get_ioctl(struct drm_device *dev,
  1128.                                     void *data, struct drm_file *file_priv);
  1129. extern int drm_mode_gamma_set_ioctl(struct drm_device *dev,
  1130.                                     void *data, struct drm_file *file_priv);
  1131. extern u8 drm_match_cea_mode(const struct drm_display_mode *to_match);
  1132. extern bool drm_detect_hdmi_monitor(struct edid *edid);
  1133. extern bool drm_detect_monitor_audio(struct edid *edid);
  1134. extern bool drm_rgb_quant_range_selectable(struct edid *edid);
  1135. extern int drm_mode_page_flip_ioctl(struct drm_device *dev,
  1136.                                     void *data, struct drm_file *file_priv);
  1137. extern struct drm_display_mode *drm_cvt_mode(struct drm_device *dev,
  1138.                                 int hdisplay, int vdisplay, int vrefresh,
  1139.                                 bool reduced, bool interlaced, bool margins);
  1140. extern struct drm_display_mode *drm_gtf_mode(struct drm_device *dev,
  1141.                                 int hdisplay, int vdisplay, int vrefresh,
  1142.                                 bool interlaced, int margins);
  1143. extern struct drm_display_mode *drm_gtf_mode_complex(struct drm_device *dev,
  1144.                                 int hdisplay, int vdisplay, int vrefresh,
  1145.                                 bool interlaced, int margins, int GTF_M,
  1146.                                 int GTF_2C, int GTF_K, int GTF_2J);
  1147. extern int drm_add_modes_noedid(struct drm_connector *connector,
  1148.                                 int hdisplay, int vdisplay);
  1149. extern void drm_set_preferred_mode(struct drm_connector *connector,
  1150.                                    int hpref, int vpref);
  1151.  
  1152. extern int drm_edid_header_is_valid(const u8 *raw_edid);
  1153. extern bool drm_edid_block_valid(u8 *raw_edid, int block, bool print_bad_edid);
  1154. extern bool drm_edid_is_valid(struct edid *edid);
  1155. struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
  1156.                                            int hsize, int vsize, int fresh,
  1157.                                            bool rb);
  1158.  
  1159. extern int drm_mode_create_dumb_ioctl(struct drm_device *dev,
  1160.                                       void *data, struct drm_file *file_priv);
  1161. extern int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
  1162.                                     void *data, struct drm_file *file_priv);
  1163. extern int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
  1164.                                       void *data, struct drm_file *file_priv);
  1165. extern int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data,
  1166.                                              struct drm_file *file_priv);
  1167. extern int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data,
  1168.                                            struct drm_file *file_priv);
  1169.  
  1170. extern void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
  1171.                                  int *bpp);
  1172. extern int drm_format_num_planes(uint32_t format);
  1173. extern int drm_format_plane_cpp(uint32_t format, int plane);
  1174. extern int drm_format_horz_chroma_subsampling(uint32_t format);
  1175. extern int drm_format_vert_chroma_subsampling(uint32_t format);
  1176. extern const char *drm_get_format_name(uint32_t format);
  1177.  
  1178. /* Helpers */
  1179. static inline struct drm_crtc *drm_crtc_find(struct drm_device *dev,
  1180.         uint32_t id)
  1181. {
  1182.         struct drm_mode_object *mo;
  1183.         mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_CRTC);
  1184.         return mo ? obj_to_crtc(mo) : NULL;
  1185. }
  1186.  
  1187. static inline struct drm_encoder *drm_encoder_find(struct drm_device *dev,
  1188.         uint32_t id)
  1189. {
  1190.         struct drm_mode_object *mo;
  1191.         mo = drm_mode_object_find(dev, id, DRM_MODE_OBJECT_ENCODER);
  1192.         return mo ? obj_to_encoder(mo) : NULL;
  1193. }
  1194.  
  1195. #endif /* __DRM_CRTC_H__ */
  1196.