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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.  
  33. #include <linux/fb.h>
  34.  
  35. struct drm_device;
  36. struct drm_mode_set;
  37. struct drm_framebuffer;
  38.  
  39.  
  40. #define DRM_MODE_OBJECT_CRTC 0xcccccccc
  41. #define DRM_MODE_OBJECT_CONNECTOR 0xc0c0c0c0
  42. #define DRM_MODE_OBJECT_ENCODER 0xe0e0e0e0
  43. #define DRM_MODE_OBJECT_MODE 0xdededede
  44. #define DRM_MODE_OBJECT_PROPERTY 0xb0b0b0b0
  45. #define DRM_MODE_OBJECT_FB 0xfbfbfbfb
  46. #define DRM_MODE_OBJECT_BLOB 0xbbbbbbbb
  47.  
  48. struct drm_mode_object {
  49.         uint32_t id;
  50.         uint32_t type;
  51. };
  52.  
  53. /*
  54.  * Note on terminology:  here, for brevity and convenience, we refer to connector
  55.  * control chips as 'CRTCs'.  They can control any type of connector, VGA, LVDS,
  56.  * DVI, etc.  And 'screen' refers to the whole of the visible display, which
  57.  * may span multiple monitors (and therefore multiple CRTC and connector
  58.  * structures).
  59.  */
  60.  
  61. enum drm_mode_status {
  62.     MODE_OK     = 0,    /* Mode OK */
  63.     MODE_HSYNC,         /* hsync out of range */
  64.     MODE_VSYNC,         /* vsync out of range */
  65.     MODE_H_ILLEGAL,     /* mode has illegal horizontal timings */
  66.     MODE_V_ILLEGAL,     /* mode has illegal horizontal timings */
  67.     MODE_BAD_WIDTH,     /* requires an unsupported linepitch */
  68.     MODE_NOMODE,        /* no mode with a maching name */
  69.     MODE_NO_INTERLACE,  /* interlaced mode not supported */
  70.     MODE_NO_DBLESCAN,   /* doublescan mode not supported */
  71.     MODE_NO_VSCAN,      /* multiscan mode not supported */
  72.     MODE_MEM,           /* insufficient video memory */
  73.     MODE_VIRTUAL_X,     /* mode width too large for specified virtual size */
  74.     MODE_VIRTUAL_Y,     /* mode height too large for specified virtual size */
  75.     MODE_MEM_VIRT,      /* insufficient video memory given virtual size */
  76.     MODE_NOCLOCK,       /* no fixed clock available */
  77.     MODE_CLOCK_HIGH,    /* clock required is too high */
  78.     MODE_CLOCK_LOW,     /* clock required is too low */
  79.     MODE_CLOCK_RANGE,   /* clock/mode isn't in a ClockRange */
  80.     MODE_BAD_HVALUE,    /* horizontal timing was out of range */
  81.     MODE_BAD_VVALUE,    /* vertical timing was out of range */
  82.     MODE_BAD_VSCAN,     /* VScan value out of range */
  83.     MODE_HSYNC_NARROW,  /* horizontal sync too narrow */
  84.     MODE_HSYNC_WIDE,    /* horizontal sync too wide */
  85.     MODE_HBLANK_NARROW, /* horizontal blanking too narrow */
  86.     MODE_HBLANK_WIDE,   /* horizontal blanking too wide */
  87.     MODE_VSYNC_NARROW,  /* vertical sync too narrow */
  88.     MODE_VSYNC_WIDE,    /* vertical sync too wide */
  89.     MODE_VBLANK_NARROW, /* vertical blanking too narrow */
  90.     MODE_VBLANK_WIDE,   /* vertical blanking too wide */
  91.     MODE_PANEL,         /* exceeds panel dimensions */
  92.     MODE_INTERLACE_WIDTH, /* width too large for interlaced mode */
  93.     MODE_ONE_WIDTH,     /* only one width is supported */
  94.     MODE_ONE_HEIGHT,    /* only one height is supported */
  95.     MODE_ONE_SIZE,      /* only one resolution is supported */
  96.     MODE_NO_REDUCED,    /* monitor doesn't accept reduced blanking */
  97.     MODE_UNVERIFIED = -3, /* mode needs to reverified */
  98.     MODE_BAD = -2,      /* unspecified reason */
  99.     MODE_ERROR  = -1    /* error condition */
  100. };
  101.  
  102. #define DRM_MODE_TYPE_CLOCK_CRTC_C (DRM_MODE_TYPE_CLOCK_C | \
  103.                                     DRM_MODE_TYPE_CRTC_C)
  104.  
  105. #define DRM_MODE(nm, t, c, hd, hss, hse, ht, hsk, vd, vss, vse, vt, vs, f) \
  106.         .name = nm, .status = 0, .type = (t), .clock = (c), \
  107.         .hdisplay = (hd), .hsync_start = (hss), .hsync_end = (hse), \
  108.         .htotal = (ht), .hskew = (hsk), .vdisplay = (vd), \
  109.         .vsync_start = (vss), .vsync_end = (vse), .vtotal = (vt), \
  110.         .vscan = (vs), .flags = (f), .vrefresh = 0
  111.  
  112. #define CRTC_INTERLACE_HALVE_V 0x1 /* halve V values for interlacing */
  113.  
  114. struct drm_display_mode {
  115.         /* Header */
  116.         struct list_head head;
  117.         struct drm_mode_object base;
  118.  
  119.         char name[DRM_DISPLAY_MODE_LEN];
  120.  
  121.         int connector_count;
  122.         enum drm_mode_status status;
  123.         int type;
  124.  
  125.         /* Proposed mode values */
  126.         int clock;              /* in kHz */
  127.         int hdisplay;
  128.         int hsync_start;
  129.         int hsync_end;
  130.         int htotal;
  131.         int hskew;
  132.         int vdisplay;
  133.         int vsync_start;
  134.         int vsync_end;
  135.         int vtotal;
  136.         int vscan;
  137.         unsigned int flags;
  138.  
  139.         /* Addressable image size (may be 0 for projectors, etc.) */
  140.         int width_mm;
  141.         int height_mm;
  142.  
  143.         /* Actual mode we give to hw */
  144.         int clock_index;
  145.         int synth_clock;
  146.         int crtc_hdisplay;
  147.         int crtc_hblank_start;
  148.         int crtc_hblank_end;
  149.         int crtc_hsync_start;
  150.         int crtc_hsync_end;
  151.         int crtc_htotal;
  152.         int crtc_hskew;
  153.         int crtc_vdisplay;
  154.         int crtc_vblank_start;
  155.         int crtc_vblank_end;
  156.         int crtc_vsync_start;
  157.         int crtc_vsync_end;
  158.         int crtc_vtotal;
  159.         int crtc_hadjusted;
  160.         int crtc_vadjusted;
  161.  
  162.         /* Driver private mode info */
  163.         int private_size;
  164.         int *private;
  165.         int private_flags;
  166.  
  167.         int vrefresh;           /* in Hz */
  168.         int hsync;              /* in kHz */
  169. };
  170.  
  171. enum drm_connector_status {
  172.         connector_status_connected = 1,
  173.         connector_status_disconnected = 2,
  174.         connector_status_unknown = 3,
  175. };
  176.  
  177. enum subpixel_order {
  178.         SubPixelUnknown = 0,
  179.         SubPixelHorizontalRGB,
  180.         SubPixelHorizontalBGR,
  181.         SubPixelVerticalRGB,
  182.         SubPixelVerticalBGR,
  183.         SubPixelNone,
  184. };
  185.  
  186.  
  187. /*
  188.  * Describes a given display (e.g. CRT or flat panel) and its limitations.
  189.  */
  190. struct drm_display_info {
  191.         char name[DRM_DISPLAY_INFO_LEN];
  192.         /* Input info */
  193.         bool serration_vsync;
  194.         bool sync_on_green;
  195.         bool composite_sync;
  196.         bool separate_syncs;
  197.         bool blank_to_black;
  198.         unsigned char video_level;
  199.         bool digital;
  200.         /* Physical size */
  201.         unsigned int width_mm;
  202.         unsigned int height_mm;
  203.  
  204.         /* Display parameters */
  205.         unsigned char gamma; /* FIXME: storage format */
  206.         bool gtf_supported;
  207.         bool standard_color;
  208.         enum {
  209.                 monochrome = 0,
  210.                 rgb,
  211.                 other,
  212.                 unknown,
  213.         } display_type;
  214.         bool active_off_supported;
  215.         bool suspend_supported;
  216.         bool standby_supported;
  217.  
  218.         /* Color info FIXME: storage format */
  219.         unsigned short redx, redy;
  220.         unsigned short greenx, greeny;
  221.         unsigned short bluex, bluey;
  222.         unsigned short whitex, whitey;
  223.  
  224.         /* Clock limits FIXME: storage format */
  225.         unsigned int min_vfreq, max_vfreq;
  226.         unsigned int min_hfreq, max_hfreq;
  227.         unsigned int pixel_clock;
  228.  
  229.         /* White point indices FIXME: storage format */
  230.         unsigned int wpx1, wpy1;
  231.         unsigned int wpgamma1;
  232.         unsigned int wpx2, wpy2;
  233.         unsigned int wpgamma2;
  234.  
  235.         enum subpixel_order subpixel_order;
  236.  
  237.         char *raw_edid; /* if any */
  238. };
  239.  
  240. struct drm_framebuffer_funcs {
  241.         void (*destroy)(struct drm_framebuffer *framebuffer);
  242.         int (*create_handle)(struct drm_framebuffer *fb,
  243.                              struct drm_file *file_priv,
  244.                              unsigned int *handle);
  245.         /**
  246.          * Optinal callback for the dirty fb ioctl.
  247.          *
  248.          * Userspace can notify the driver via this callback
  249.          * that a area of the framebuffer has changed and should
  250.          * be flushed to the display hardware.
  251.          *
  252.          * See documentation in drm_mode.h for the struct
  253.          * drm_mode_fb_dirty_cmd for more information as all
  254.          * the semantics and arguments have a one to one mapping
  255.          * on this function.
  256.          */
  257.         int (*dirty)(struct drm_framebuffer *framebuffer, unsigned flags,
  258.                      unsigned color, struct drm_clip_rect *clips,
  259.                      unsigned num_clips);
  260. };
  261.  
  262. struct drm_framebuffer {
  263.         struct drm_device *dev;
  264.         struct list_head head;
  265.         struct drm_mode_object base;
  266.         const struct drm_framebuffer_funcs *funcs;
  267.         unsigned int pitch;
  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.         struct fb_info *fbdev;
  275.         u32 pseudo_palette[17];
  276.         struct list_head filp_head;
  277.         /* if you are using the helper */
  278.         void *helper_private;
  279. };
  280.  
  281. struct drm_property_blob {
  282.         struct drm_mode_object base;
  283.         struct list_head head;
  284.         unsigned int length;
  285.         void *data;
  286. };
  287.  
  288. struct drm_property_enum {
  289.         uint64_t value;
  290.         struct list_head head;
  291.         char name[DRM_PROP_NAME_LEN];
  292. };
  293.  
  294. struct drm_property {
  295.     struct      list_head head;
  296.     struct      drm_mode_object base;
  297.     uint32_t    flags;
  298.     char        name[DRM_PROP_NAME_LEN];
  299.     uint32_t    num_values;
  300.     uint64_t    *values;
  301.  
  302.         struct list_head enum_blob_list;
  303. };
  304.  
  305. struct drm_crtc;
  306. struct drm_connector;
  307. struct drm_encoder;
  308. struct drm_pending_vblank_event;
  309.  
  310. /**
  311.  * drm_crtc_funcs - control CRTCs for a given device
  312.  * @dpms: control display power levels
  313.  * @save: save CRTC state
  314.  * @resore: restore CRTC state
  315.  * @lock: lock the CRTC
  316.  * @unlock: unlock the CRTC
  317.  * @shadow_allocate: allocate shadow pixmap
  318.  * @shadow_create: create shadow pixmap for rotation support
  319.  * @shadow_destroy: free shadow pixmap
  320.  * @mode_fixup: fixup proposed mode
  321.  * @mode_set: set the desired mode on the CRTC
  322.  * @gamma_set: specify color ramp for CRTC
  323.  * @destroy: deinit and free object.
  324.  *
  325.  * The drm_crtc_funcs structure is the central CRTC management structure
  326.  * in the DRM.  Each CRTC controls one or more connectors (note that the name
  327.  * CRTC is simply historical, a CRTC may control LVDS, VGA, DVI, TV out, etc.
  328.  * connectors, not just CRTs).
  329.  *
  330.  * Each driver is responsible for filling out this structure at startup time,
  331.  * in addition to providing other modesetting features, like i2c and DDC
  332.  * bus accessors.
  333.  */
  334. struct drm_crtc_funcs {
  335.         /* Save CRTC state */
  336.         void (*save)(struct drm_crtc *crtc); /* suspend? */
  337.         /* Restore CRTC state */
  338.         void (*restore)(struct drm_crtc *crtc); /* resume? */
  339.  
  340.         /* cursor controls */
  341.         int (*cursor_set)(struct drm_crtc *crtc, struct drm_file *file_priv,
  342.                           uint32_t handle, uint32_t width, uint32_t height);
  343.         int (*cursor_move)(struct drm_crtc *crtc, int x, int y);
  344.  
  345.         /* Set gamma on the CRTC */
  346.         void (*gamma_set)(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b,
  347.                           uint32_t size);
  348.         /* Object destroy routine */
  349.         void (*destroy)(struct drm_crtc *crtc);
  350.  
  351.         int (*set_config)(struct drm_mode_set *set);
  352.  
  353.         /*
  354.          * Flip to the given framebuffer.  This implements the page
  355.          * flip ioctl descibed in drm_mode.h, specifically, the
  356.          * implementation must return immediately and block all
  357.          * rendering to the current fb until the flip has completed.
  358.          * If userspace set the event flag in the ioctl, the event
  359.          * argument will point to an event to send back when the flip
  360.          * completes, otherwise it will be NULL.
  361.          */
  362.         int (*page_flip)(struct drm_crtc *crtc,
  363.                          struct drm_framebuffer *fb,
  364.                          struct drm_pending_vblank_event *event);
  365. };
  366.  
  367. /**
  368.  * drm_crtc - central CRTC control structure
  369.  * @enabled: is this CRTC enabled?
  370.  * @x: x position on screen
  371.  * @y: y position on screen
  372.  * @desired_mode: new desired mode
  373.  * @desired_x: desired x for desired_mode
  374.  * @desired_y: desired y for desired_mode
  375.  * @funcs: CRTC control functions
  376.  *
  377.  * Each CRTC may have one or more connectors associated with it.  This structure
  378.  * allows the CRTC to be controlled.
  379.  */
  380. struct drm_crtc {
  381.         struct drm_device *dev;
  382.         struct list_head head;
  383.  
  384.         struct drm_mode_object base;
  385.  
  386.         /* framebuffer the connector is currently bound to */
  387.         struct drm_framebuffer *fb;
  388.  
  389.         bool enabled;
  390.  
  391.         struct drm_display_mode mode;
  392.  
  393.         int x, y;
  394.         struct drm_display_mode *desired_mode;
  395.         int desired_x, desired_y;
  396.         const struct drm_crtc_funcs *funcs;
  397.  
  398.         /* CRTC gamma size for reporting to userspace */
  399.         uint32_t gamma_size;
  400.         uint16_t *gamma_store;
  401.  
  402.         /* if you are using the helper */
  403.         void *helper_private;
  404. };
  405.  
  406.  
  407. /**
  408.  * drm_connector_funcs - control connectors on a given device
  409.  * @dpms: set power state (see drm_crtc_funcs above)
  410.  * @save: save connector state
  411.  * @restore: restore connector state
  412.  * @mode_valid: is this mode valid on the given connector?
  413.  * @mode_fixup: try to fixup proposed mode for this connector
  414.  * @mode_set: set this mode
  415.  * @detect: is this connector active?
  416.  * @get_modes: get mode list for this connector
  417.  * @set_property: property for this connector may need update
  418.  * @destroy: make object go away
  419.  * @force: notify the driver the connector is forced on
  420.  *
  421.  * Each CRTC may have one or more connectors attached to it.  The functions
  422.  * below allow the core DRM code to control connectors, enumerate available modes,
  423.  * etc.
  424.  */
  425. struct drm_connector_funcs {
  426.         void (*dpms)(struct drm_connector *connector, int mode);
  427.         void (*save)(struct drm_connector *connector);
  428.         void (*restore)(struct drm_connector *connector);
  429.         enum drm_connector_status (*detect)(struct drm_connector *connector);
  430.         int (*fill_modes)(struct drm_connector *connector, uint32_t max_width, uint32_t max_height);
  431.         int (*set_property)(struct drm_connector *connector, struct drm_property *property,
  432.                              uint64_t val);
  433.         void (*destroy)(struct drm_connector *connector);
  434.         void (*force)(struct drm_connector *connector);
  435. };
  436.  
  437. struct drm_encoder_funcs {
  438.         void (*destroy)(struct drm_encoder *encoder);
  439. };
  440.  
  441. #define DRM_CONNECTOR_MAX_UMODES 16
  442. #define DRM_CONNECTOR_MAX_PROPERTY 16
  443. #define DRM_CONNECTOR_LEN 32
  444. #define DRM_CONNECTOR_MAX_ENCODER 2
  445.  
  446. /**
  447.  * drm_encoder - central DRM encoder structure
  448.  */
  449. struct drm_encoder {
  450.         struct drm_device *dev;
  451.         struct list_head head;
  452.  
  453.         struct drm_mode_object base;
  454.         int encoder_type;
  455.         uint32_t possible_crtcs;
  456.         uint32_t possible_clones;
  457.  
  458.         struct drm_crtc *crtc;
  459.         const struct drm_encoder_funcs *funcs;
  460.         void *helper_private;
  461. };
  462.  
  463. enum drm_connector_force {
  464.         DRM_FORCE_UNSPECIFIED,
  465.         DRM_FORCE_OFF,
  466.         DRM_FORCE_ON,         /* force on analog part normally */
  467.         DRM_FORCE_ON_DIGITAL, /* for DVI-I use digital connector */
  468. };
  469.  
  470. /**
  471.  * drm_connector - central DRM connector control structure
  472.  * @crtc: CRTC this connector is currently connected to, NULL if none
  473.  * @interlace_allowed: can this connector handle interlaced modes?
  474.  * @doublescan_allowed: can this connector handle doublescan?
  475.  * @available_modes: modes available on this connector (from get_modes() + user)
  476.  * @initial_x: initial x position for this connector
  477.  * @initial_y: initial y position for this connector
  478.  * @status: connector connected?
  479.  * @funcs: connector control functions
  480.  *
  481.  * Each connector may be connected to one or more CRTCs, or may be clonable by
  482.  * another connector if they can share a CRTC.  Each connector also has a specific
  483.  * position in the broader display (referred to as a 'screen' though it could
  484.  * span multiple monitors).
  485.  */
  486. struct drm_connector {
  487.         struct drm_device *dev;
  488. //   struct device kdev;
  489.         struct device_attribute *attr;
  490.         struct list_head head;
  491.  
  492.         struct drm_mode_object base;
  493.  
  494.         int connector_type;
  495.         int connector_type_id;
  496.         bool interlace_allowed;
  497.         bool doublescan_allowed;
  498.         struct list_head modes; /* list of modes on this connector */
  499.  
  500.         int initial_x, initial_y;
  501.         enum drm_connector_status status;
  502.  
  503.         /* these are modes added by probing with DDC or the BIOS */
  504.         struct list_head probed_modes;
  505.  
  506.         struct drm_display_info display_info;
  507.         const struct drm_connector_funcs *funcs;
  508.  
  509.         struct list_head user_modes;
  510.         struct drm_property_blob *edid_blob_ptr;
  511.         u32 property_ids[DRM_CONNECTOR_MAX_PROPERTY];
  512.         uint64_t property_values[DRM_CONNECTOR_MAX_PROPERTY];
  513.  
  514.         /* requested DPMS state */
  515.         int dpms;
  516.  
  517.         void *helper_private;
  518.  
  519.         /* forced on connector */
  520.         enum drm_connector_force force;
  521.         uint32_t encoder_ids[DRM_CONNECTOR_MAX_ENCODER];
  522.         uint32_t force_encoder_id;
  523.         struct drm_encoder *encoder; /* currently active encoder */
  524.         void *fb_helper_private;
  525. };
  526.  
  527. /**
  528.  * struct drm_mode_set
  529.  *
  530.  * Represents a single crtc the connectors that it drives with what mode
  531.  * and from which framebuffer it scans out from.
  532.  *
  533.  * This is used to set modes.
  534.  */
  535. struct drm_mode_set {
  536.         struct list_head head;
  537.  
  538.         struct drm_framebuffer *fb;
  539.         struct drm_crtc *crtc;
  540.         struct drm_display_mode *mode;
  541.  
  542.         uint32_t x;
  543.         uint32_t y;
  544.  
  545.         struct drm_connector **connectors;
  546.         size_t num_connectors;
  547. };
  548.  
  549. /**
  550.  * struct drm_mode_config_funcs - configure CRTCs for a given screen layout
  551.  * @resize: adjust CRTCs as necessary for the proposed layout
  552.  *
  553.  * Currently only a resize hook is available.  DRM will call back into the
  554.  * driver with a new screen width and height.  If the driver can't support
  555.  * the proposed size, it can return false.  Otherwise it should adjust
  556.  * the CRTC<->connector mappings as needed and update its view of the screen.
  557.  */
  558. struct drm_mode_config_funcs {
  559.         struct drm_framebuffer *(*fb_create)(struct drm_device *dev, struct drm_file *file_priv, struct drm_mode_fb_cmd *mode_cmd);
  560.         int (*fb_changed)(struct drm_device *dev);
  561. };
  562.  
  563. struct drm_mode_group {
  564.         uint32_t num_crtcs;
  565.         uint32_t num_encoders;
  566.         uint32_t num_connectors;
  567.  
  568.         /* list of object IDs for this group */
  569.         uint32_t *id_list;
  570. };
  571.  
  572. /**
  573.  * drm_mode_config - Mode configuration control structure
  574.  *
  575.  */
  576. struct drm_mode_config {
  577. //   struct mutex mutex; /* protects configuration (mode lists etc.) */
  578. //   struct mutex idr_mutex; /* for IDR management */
  579.     struct idr crtc_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */
  580.         /* this is limited to one for now */
  581.         int num_fb;
  582.         struct list_head fb_list;
  583.         int num_connector;
  584.         struct list_head connector_list;
  585.         int num_encoder;
  586.         struct list_head encoder_list;
  587.  
  588.         int num_crtc;
  589.         struct list_head crtc_list;
  590.  
  591.         struct list_head property_list;
  592.  
  593.         /* in-kernel framebuffers - hung of filp_head in drm_framebuffer */
  594.         struct list_head fb_kernel_list;
  595.  
  596.         int min_width, min_height;
  597.         int max_width, max_height;
  598.         struct drm_mode_config_funcs *funcs;
  599.         resource_size_t fb_base;
  600.  
  601.         /* pointers to standard properties */
  602.         struct list_head property_blob_list;
  603.         struct drm_property *edid_property;
  604.         struct drm_property *dpms_property;
  605.  
  606.         /* DVI-I properties */
  607.         struct drm_property *dvi_i_subconnector_property;
  608.         struct drm_property *dvi_i_select_subconnector_property;
  609.  
  610.         /* TV properties */
  611.         struct drm_property *tv_subconnector_property;
  612.         struct drm_property *tv_select_subconnector_property;
  613.         struct drm_property *tv_mode_property;
  614.         struct drm_property *tv_left_margin_property;
  615.         struct drm_property *tv_right_margin_property;
  616.         struct drm_property *tv_top_margin_property;
  617.         struct drm_property *tv_bottom_margin_property;
  618.         struct drm_property *tv_brightness_property;
  619.         struct drm_property *tv_contrast_property;
  620.         struct drm_property *tv_flicker_reduction_property;
  621.         struct drm_property *tv_overscan_property;
  622.         struct drm_property *tv_saturation_property;
  623.         struct drm_property *tv_hue_property;
  624.  
  625.         /* Optional properties */
  626.         struct drm_property *scaling_mode_property;
  627.         struct drm_property *dithering_mode_property;
  628.         struct drm_property *dirty_info_property;
  629. };
  630.  
  631. #define obj_to_crtc(x) container_of(x, struct drm_crtc, base)
  632. #define obj_to_connector(x) container_of(x, struct drm_connector, base)
  633. #define obj_to_encoder(x) container_of(x, struct drm_encoder, base)
  634. #define obj_to_mode(x) container_of(x, struct drm_display_mode, base)
  635. #define obj_to_fb(x) container_of(x, struct drm_framebuffer, base)
  636. #define obj_to_property(x) container_of(x, struct drm_property, base)
  637. #define obj_to_blob(x) container_of(x, struct drm_property_blob, base)
  638.  
  639.  
  640. extern void drm_crtc_init(struct drm_device *dev,
  641.                           struct drm_crtc *crtc,
  642.                           const struct drm_crtc_funcs *funcs);
  643. extern void drm_crtc_cleanup(struct drm_crtc *crtc);
  644.  
  645. extern void drm_connector_init(struct drm_device *dev,
  646.                             struct drm_connector *connector,
  647.                             const struct drm_connector_funcs *funcs,
  648.                             int connector_type);
  649.  
  650. extern void drm_connector_cleanup(struct drm_connector *connector);
  651.  
  652. extern void drm_encoder_init(struct drm_device *dev,
  653.                              struct drm_encoder *encoder,
  654.                              const struct drm_encoder_funcs *funcs,
  655.                              int encoder_type);
  656.  
  657. extern void drm_encoder_cleanup(struct drm_encoder *encoder);
  658.  
  659. extern char *drm_get_connector_name(struct drm_connector *connector);
  660. extern char *drm_get_dpms_name(int val);
  661. extern char *drm_get_dvi_i_subconnector_name(int val);
  662. extern char *drm_get_dvi_i_select_name(int val);
  663. extern char *drm_get_tv_subconnector_name(int val);
  664. extern char *drm_get_tv_select_name(int val);
  665. //extern void drm_fb_release(struct drm_file *file_priv);
  666. extern int drm_mode_group_init_legacy_group(struct drm_device *dev, struct drm_mode_group *group);
  667. extern struct edid *drm_get_edid(struct drm_connector *connector,
  668.                                  struct i2c_adapter *adapter);
  669. //extern int drm_do_probe_ddc_edid(struct i2c_adapter *adapter,
  670. //                unsigned char *buf, int len);
  671. extern int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid);
  672. extern void drm_mode_probed_add(struct drm_connector *connector, struct drm_display_mode *mode);
  673. extern void drm_mode_remove(struct drm_connector *connector, struct drm_display_mode *mode);
  674. extern struct drm_display_mode *drm_mode_duplicate(struct drm_device *dev,
  675.                                                    struct drm_display_mode *mode);
  676. extern void drm_mode_debug_printmodeline(struct drm_display_mode *mode);
  677. extern void drm_mode_config_init(struct drm_device *dev);
  678. extern void drm_mode_config_cleanup(struct drm_device *dev);
  679. extern void drm_mode_set_name(struct drm_display_mode *mode);
  680. extern bool drm_mode_equal(struct drm_display_mode *mode1, struct drm_display_mode *mode2);
  681. extern int drm_mode_width(struct drm_display_mode *mode);
  682. extern int drm_mode_height(struct drm_display_mode *mode);
  683.  
  684. /* for us by fb module */
  685. extern int drm_mode_attachmode_crtc(struct drm_device *dev,
  686.                                     struct drm_crtc *crtc,
  687.                                     struct drm_display_mode *mode);
  688. extern int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode);
  689.  
  690. extern struct drm_display_mode *drm_mode_create(struct drm_device *dev);
  691. extern void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode);
  692. extern void drm_mode_list_concat(struct list_head *head,
  693.                 struct list_head *new);
  694. extern void drm_mode_validate_size(struct drm_device *dev,
  695.                   struct list_head *mode_list,
  696.                   int maxX, int maxY, int maxPitch);
  697. extern void drm_mode_prune_invalid(struct drm_device *dev,
  698.                   struct list_head *mode_list, bool verbose);
  699. extern void drm_mode_sort(struct list_head *mode_list);
  700. extern int drm_mode_hsync(struct drm_display_mode *mode);
  701. extern int drm_mode_vrefresh(struct drm_display_mode *mode);
  702. extern void drm_mode_set_crtcinfo(struct drm_display_mode *p,
  703.                                   int adjust_flags);
  704. extern void drm_mode_connector_list_update(struct drm_connector *connector);
  705. extern int drm_mode_connector_update_edid_property(struct drm_connector *connector,
  706.                        struct edid *edid);
  707. extern int drm_connector_property_set_value(struct drm_connector *connector,
  708.                                          struct drm_property *property,
  709.                                          uint64_t value);
  710. extern int drm_connector_property_get_value(struct drm_connector *connector,
  711.                                          struct drm_property *property,
  712.                                          uint64_t *value);
  713. extern struct drm_display_mode *drm_crtc_mode_create(struct drm_device *dev);
  714. extern void drm_framebuffer_set_object(struct drm_device *dev,
  715.                                        unsigned long handle);
  716. extern int drm_framebuffer_init(struct drm_device *dev,
  717.                                 struct drm_framebuffer *fb,
  718.                                 const struct drm_framebuffer_funcs *funcs);
  719. extern void drm_framebuffer_cleanup(struct drm_framebuffer *fb);
  720. extern int drmfb_probe(struct drm_device *dev, struct drm_crtc *crtc);
  721. extern int drmfb_remove(struct drm_device *dev, struct drm_framebuffer *fb);
  722. extern void drm_crtc_probe_connector_modes(struct drm_device *dev, int maxX, int maxY);
  723. extern bool drm_crtc_in_use(struct drm_crtc *crtc);
  724.  
  725. extern int drm_connector_attach_property(struct drm_connector *connector,
  726.                                       struct drm_property *property, uint64_t init_val);
  727. extern struct drm_property *drm_property_create(struct drm_device *dev, int flags,
  728.                                                 const char *name, int num_values);
  729. extern void drm_property_destroy(struct drm_device *dev, struct drm_property *property);
  730. extern int drm_property_add_enum(struct drm_property *property, int index,
  731.                                  uint64_t value, const char *name);
  732. extern int drm_mode_create_dvi_i_properties(struct drm_device *dev);
  733. extern int drm_mode_create_tv_properties(struct drm_device *dev, int num_formats,
  734.                                      char *formats[]);
  735. extern int drm_mode_create_scaling_mode_property(struct drm_device *dev);
  736. extern int drm_mode_create_dithering_property(struct drm_device *dev);
  737. extern int drm_mode_create_dirty_info_property(struct drm_device *dev);
  738. extern char *drm_get_encoder_name(struct drm_encoder *encoder);
  739.  
  740. extern int drm_mode_connector_attach_encoder(struct drm_connector *connector,
  741.                                              struct drm_encoder *encoder);
  742. extern void drm_mode_connector_detach_encoder(struct drm_connector *connector,
  743.                                            struct drm_encoder *encoder);
  744. extern bool drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
  745.                                          int gamma_size);
  746. extern struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
  747.                 uint32_t id, uint32_t type);
  748. /* IOCTLs */
  749. extern int drm_mode_getresources(struct drm_device *dev,
  750.                                  void *data, struct drm_file *file_priv);
  751.  
  752. extern int drm_mode_getcrtc(struct drm_device *dev,
  753.                             void *data, struct drm_file *file_priv);
  754. extern int drm_mode_getconnector(struct drm_device *dev,
  755.                               void *data, struct drm_file *file_priv);
  756. extern int drm_mode_setcrtc(struct drm_device *dev,
  757.                             void *data, struct drm_file *file_priv);
  758. extern int drm_mode_cursor_ioctl(struct drm_device *dev,
  759.                                 void *data, struct drm_file *file_priv);
  760. extern int drm_mode_addfb(struct drm_device *dev,
  761.                           void *data, struct drm_file *file_priv);
  762. extern int drm_mode_rmfb(struct drm_device *dev,
  763.                          void *data, struct drm_file *file_priv);
  764. extern int drm_mode_getfb(struct drm_device *dev,
  765.                           void *data, struct drm_file *file_priv);
  766. extern int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
  767.                                   void *data, struct drm_file *file_priv);
  768. extern int drm_mode_addmode_ioctl(struct drm_device *dev,
  769.                                   void *data, struct drm_file *file_priv);
  770. extern int drm_mode_rmmode_ioctl(struct drm_device *dev,
  771.                                  void *data, struct drm_file *file_priv);
  772. extern int drm_mode_attachmode_ioctl(struct drm_device *dev,
  773.                                      void *data, struct drm_file *file_priv);
  774. extern int drm_mode_detachmode_ioctl(struct drm_device *dev,
  775.                                      void *data, struct drm_file *file_priv);
  776.  
  777. extern int drm_mode_getproperty_ioctl(struct drm_device *dev,
  778.                                       void *data, struct drm_file *file_priv);
  779. extern int drm_mode_getblob_ioctl(struct drm_device *dev,
  780.                                   void *data, struct drm_file *file_priv);
  781. extern int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
  782.                                               void *data, struct drm_file *file_priv);
  783. extern int drm_mode_hotplug_ioctl(struct drm_device *dev,
  784.                                   void *data, struct drm_file *file_priv);
  785. extern int drm_mode_replacefb(struct drm_device *dev,
  786.                               void *data, struct drm_file *file_priv);
  787. extern int drm_mode_getencoder(struct drm_device *dev,
  788.                                void *data, struct drm_file *file_priv);
  789. extern int drm_mode_gamma_get_ioctl(struct drm_device *dev,
  790.                                     void *data, struct drm_file *file_priv);
  791. extern int drm_mode_gamma_set_ioctl(struct drm_device *dev,
  792.                                     void *data, struct drm_file *file_priv);
  793. extern bool drm_detect_hdmi_monitor(struct edid *edid);
  794. extern int drm_mode_page_flip_ioctl(struct drm_device *dev,
  795.                                     void *data, struct drm_file *file_priv);
  796. extern struct drm_display_mode *drm_cvt_mode(struct drm_device *dev,
  797.                                 int hdisplay, int vdisplay, int vrefresh,
  798.                                 bool reduced, bool interlaced, bool margins);
  799. extern struct drm_display_mode *drm_gtf_mode(struct drm_device *dev,
  800.                                 int hdisplay, int vdisplay, int vrefresh,
  801.                                 bool interlaced, int margins);
  802. extern int drm_add_modes_noedid(struct drm_connector *connector,
  803.                                 int hdisplay, int vdisplay);
  804.  
  805. extern bool drm_edid_is_valid(struct edid *edid);
  806. #endif /* __DRM_CRTC_H__ */
  807.