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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 matching 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. #define DRM_COLOR_FORMAT_RGB444         (1<<0)
  187. #define DRM_COLOR_FORMAT_YCRCB444       (1<<1)
  188. #define DRM_COLOR_FORMAT_YCRCB422       (1<<2)
  189. /*
  190.  * Describes a given display (e.g. CRT or flat panel) and its limitations.
  191.  */
  192. struct drm_display_info {
  193.         char name[DRM_DISPLAY_INFO_LEN];
  194.  
  195.         /* Physical size */
  196.         unsigned int width_mm;
  197.         unsigned int height_mm;
  198.  
  199.         /* Clock limits FIXME: storage format */
  200.         unsigned int min_vfreq, max_vfreq;
  201.         unsigned int min_hfreq, max_hfreq;
  202.         unsigned int pixel_clock;
  203.         unsigned int bpc;
  204.  
  205.         enum subpixel_order subpixel_order;
  206.         u32 color_formats;
  207.  
  208.         char *raw_edid; /* if any */
  209. };
  210.  
  211. struct drm_framebuffer_funcs {
  212.         void (*destroy)(struct drm_framebuffer *framebuffer);
  213.         int (*create_handle)(struct drm_framebuffer *fb,
  214.                              struct drm_file *file_priv,
  215.                              unsigned int *handle);
  216.         /**
  217.          * Optinal callback for the dirty fb ioctl.
  218.          *
  219.          * Userspace can notify the driver via this callback
  220.          * that a area of the framebuffer has changed and should
  221.          * be flushed to the display hardware.
  222.          *
  223.          * See documentation in drm_mode.h for the struct
  224.          * drm_mode_fb_dirty_cmd for more information as all
  225.          * the semantics and arguments have a one to one mapping
  226.          * on this function.
  227.          */
  228.         int (*dirty)(struct drm_framebuffer *framebuffer,
  229.                      struct drm_file *file_priv, unsigned flags,
  230.                      unsigned color, struct drm_clip_rect *clips,
  231.                      unsigned num_clips);
  232. };
  233.  
  234. struct drm_framebuffer {
  235.         struct drm_device *dev;
  236.         struct list_head head;
  237.         struct drm_mode_object base;
  238.         const struct drm_framebuffer_funcs *funcs;
  239.         unsigned int pitch;
  240.         unsigned int width;
  241.         unsigned int height;
  242.         /* depth can be 15 or 16 */
  243.         unsigned int depth;
  244.         int bits_per_pixel;
  245.         int flags;
  246.         struct list_head filp_head;
  247.         /* if you are using the helper */
  248.         void *helper_private;
  249. };
  250.  
  251. struct drm_property_blob {
  252.         struct drm_mode_object base;
  253.         struct list_head head;
  254.         unsigned int length;
  255.         void *data;
  256. };
  257.  
  258. struct drm_property_enum {
  259.         uint64_t value;
  260.         struct list_head head;
  261.         char name[DRM_PROP_NAME_LEN];
  262. };
  263.  
  264. struct drm_property {
  265.     struct      list_head head;
  266.     struct      drm_mode_object base;
  267.     uint32_t    flags;
  268.     char        name[DRM_PROP_NAME_LEN];
  269.     uint32_t    num_values;
  270.     uint64_t    *values;
  271.  
  272.         struct list_head enum_blob_list;
  273. };
  274.  
  275. struct drm_crtc;
  276. struct drm_connector;
  277. struct drm_encoder;
  278. struct drm_pending_vblank_event;
  279.  
  280. /**
  281.  * drm_crtc_funcs - control CRTCs for a given device
  282.  * @reset: reset CRTC after state has been invalidate (e.g. resume)
  283.  * @dpms: control display power levels
  284.  * @save: save CRTC state
  285.  * @resore: restore CRTC state
  286.  * @lock: lock the CRTC
  287.  * @unlock: unlock the CRTC
  288.  * @shadow_allocate: allocate shadow pixmap
  289.  * @shadow_create: create shadow pixmap for rotation support
  290.  * @shadow_destroy: free shadow pixmap
  291.  * @mode_fixup: fixup proposed mode
  292.  * @mode_set: set the desired mode on the CRTC
  293.  * @gamma_set: specify color ramp for CRTC
  294.  * @destroy: deinit and free object.
  295.  *
  296.  * The drm_crtc_funcs structure is the central CRTC management structure
  297.  * in the DRM.  Each CRTC controls one or more connectors (note that the name
  298.  * CRTC is simply historical, a CRTC may control LVDS, VGA, DVI, TV out, etc.
  299.  * connectors, not just CRTs).
  300.  *
  301.  * Each driver is responsible for filling out this structure at startup time,
  302.  * in addition to providing other modesetting features, like i2c and DDC
  303.  * bus accessors.
  304.  */
  305. struct drm_crtc_funcs {
  306.         /* Save CRTC state */
  307.         void (*save)(struct drm_crtc *crtc); /* suspend? */
  308.         /* Restore CRTC state */
  309.         void (*restore)(struct drm_crtc *crtc); /* resume? */
  310.         /* Reset CRTC state */
  311.         void (*reset)(struct drm_crtc *crtc);
  312.  
  313.         /* cursor controls */
  314.         int (*cursor_set)(struct drm_crtc *crtc, struct drm_file *file_priv,
  315.                           uint32_t handle, uint32_t width, uint32_t height);
  316.         int (*cursor_move)(struct drm_crtc *crtc, int x, int y);
  317.  
  318.         /* Set gamma on the CRTC */
  319.         void (*gamma_set)(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b,
  320.                           uint32_t start, uint32_t size);
  321.         /* Object destroy routine */
  322.         void (*destroy)(struct drm_crtc *crtc);
  323.  
  324.         int (*set_config)(struct drm_mode_set *set);
  325.  
  326.         /*
  327.          * Flip to the given framebuffer.  This implements the page
  328.          * flip ioctl described in drm_mode.h, specifically, the
  329.          * implementation must return immediately and block all
  330.          * rendering to the current fb until the flip has completed.
  331.          * If userspace set the event flag in the ioctl, the event
  332.          * argument will point to an event to send back when the flip
  333.          * completes, otherwise it will be NULL.
  334.          */
  335.         int (*page_flip)(struct drm_crtc *crtc,
  336.                          struct drm_framebuffer *fb,
  337.                          struct drm_pending_vblank_event *event);
  338. };
  339.  
  340. /**
  341.  * drm_crtc - central CRTC control structure
  342.  * @enabled: is this CRTC enabled?
  343.  * @x: x position on screen
  344.  * @y: y position on screen
  345.  * @funcs: CRTC control functions
  346.  *
  347.  * Each CRTC may have one or more connectors associated with it.  This structure
  348.  * allows the CRTC to be controlled.
  349.  */
  350. struct drm_crtc {
  351.         struct drm_device *dev;
  352.         struct list_head head;
  353.  
  354.         struct drm_mode_object base;
  355.  
  356.         /* framebuffer the connector is currently bound to */
  357.         struct drm_framebuffer *fb;
  358.  
  359.         bool enabled;
  360.  
  361.         /* Requested mode from modesetting. */
  362.         struct drm_display_mode mode;
  363.  
  364.         /* Programmed mode in hw, after adjustments for encoders,
  365.          * crtc, panel scaling etc. Needed for timestamping etc.
  366.          */
  367.         struct drm_display_mode hwmode;
  368.  
  369.         int x, y;
  370.         const struct drm_crtc_funcs *funcs;
  371.  
  372.         /* CRTC gamma size for reporting to userspace */
  373.         uint32_t gamma_size;
  374.         uint16_t *gamma_store;
  375.  
  376.         /* Constants needed for precise vblank and swap timestamping. */
  377.         s64 framedur_ns, linedur_ns, pixeldur_ns;
  378.  
  379.         /* if you are using the helper */
  380.         void *helper_private;
  381. };
  382.  
  383.  
  384. /**
  385.  * drm_connector_funcs - control connectors on a given device
  386.  * @dpms: set power state (see drm_crtc_funcs above)
  387.  * @save: save connector state
  388.  * @restore: restore connector state
  389.  * @reset: reset connector after state has been invalidate (e.g. resume)
  390.  * @mode_valid: is this mode valid on the given connector?
  391.  * @mode_fixup: try to fixup proposed mode for this connector
  392.  * @mode_set: set this mode
  393.  * @detect: is this connector active?
  394.  * @get_modes: get mode list for this connector
  395.  * @set_property: property for this connector may need update
  396.  * @destroy: make object go away
  397.  * @force: notify the driver the connector is forced on
  398.  *
  399.  * Each CRTC may have one or more connectors attached to it.  The functions
  400.  * below allow the core DRM code to control connectors, enumerate available modes,
  401.  * etc.
  402.  */
  403. struct drm_connector_funcs {
  404.         void (*dpms)(struct drm_connector *connector, int mode);
  405.         void (*save)(struct drm_connector *connector);
  406.         void (*restore)(struct drm_connector *connector);
  407.         void (*reset)(struct drm_connector *connector);
  408.  
  409.         /* Check to see if anything is attached to the connector.
  410.          * @force is set to false whilst polling, true when checking the
  411.          * connector due to user request. @force can be used by the driver
  412.          * to avoid expensive, destructive operations during automated
  413.          * probing.
  414.          */
  415.         enum drm_connector_status (*detect)(struct drm_connector *connector,
  416.                                             bool force);
  417.         int (*fill_modes)(struct drm_connector *connector, uint32_t max_width, uint32_t max_height);
  418.         int (*set_property)(struct drm_connector *connector, struct drm_property *property,
  419.                              uint64_t val);
  420.         void (*destroy)(struct drm_connector *connector);
  421.         void (*force)(struct drm_connector *connector);
  422. };
  423.  
  424. struct drm_encoder_funcs {
  425.         void (*reset)(struct drm_encoder *encoder);
  426.         void (*destroy)(struct drm_encoder *encoder);
  427. };
  428.  
  429. #define DRM_CONNECTOR_MAX_UMODES 16
  430. #define DRM_CONNECTOR_MAX_PROPERTY 16
  431. #define DRM_CONNECTOR_LEN 32
  432. #define DRM_CONNECTOR_MAX_ENCODER 2
  433.  
  434. /**
  435.  * drm_encoder - central DRM encoder structure
  436.  */
  437. struct drm_encoder {
  438.         struct drm_device *dev;
  439.         struct list_head head;
  440.  
  441.         struct drm_mode_object base;
  442.         int encoder_type;
  443.         uint32_t possible_crtcs;
  444.         uint32_t possible_clones;
  445.  
  446.         struct drm_crtc *crtc;
  447.         const struct drm_encoder_funcs *funcs;
  448.         void *helper_private;
  449. };
  450.  
  451. enum drm_connector_force {
  452.         DRM_FORCE_UNSPECIFIED,
  453.         DRM_FORCE_OFF,
  454.         DRM_FORCE_ON,         /* force on analog part normally */
  455.         DRM_FORCE_ON_DIGITAL, /* for DVI-I use digital connector */
  456. };
  457.  
  458. /* should we poll this connector for connects and disconnects */
  459. /* hot plug detectable */
  460. #define DRM_CONNECTOR_POLL_HPD (1 << 0)
  461. /* poll for connections */
  462. #define DRM_CONNECTOR_POLL_CONNECT (1 << 1)
  463. /* can cleanly poll for disconnections without flickering the screen */
  464. /* DACs should rarely do this without a lot of testing */
  465. #define DRM_CONNECTOR_POLL_DISCONNECT (1 << 2)
  466.  
  467. /**
  468.  * drm_connector - central DRM connector control structure
  469.  * @crtc: CRTC this connector is currently connected to, NULL if none
  470.  * @interlace_allowed: can this connector handle interlaced modes?
  471.  * @doublescan_allowed: can this connector handle doublescan?
  472.  * @available_modes: modes available on this connector (from get_modes() + user)
  473.  * @initial_x: initial x position for this connector
  474.  * @initial_y: initial y position for this connector
  475.  * @status: connector connected?
  476.  * @funcs: connector control functions
  477.  *
  478.  * Each connector may be connected to one or more CRTCs, or may be clonable by
  479.  * another connector if they can share a CRTC.  Each connector also has a specific
  480.  * position in the broader display (referred to as a 'screen' though it could
  481.  * span multiple monitors).
  482.  */
  483. struct drm_connector {
  484.         struct drm_device *dev;
  485.         struct device kdev;
  486.         struct device_attribute *attr;
  487.         struct list_head head;
  488.  
  489.         struct drm_mode_object base;
  490.  
  491.         int connector_type;
  492.         int connector_type_id;
  493.         bool interlace_allowed;
  494.         bool doublescan_allowed;
  495.         struct list_head modes; /* list of modes on this connector */
  496.  
  497.         int initial_x, initial_y;
  498.         enum drm_connector_status status;
  499.  
  500.         /* these are modes added by probing with DDC or the BIOS */
  501.         struct list_head probed_modes;
  502.  
  503.         struct drm_display_info display_info;
  504.         const struct drm_connector_funcs *funcs;
  505.  
  506.         struct list_head user_modes;
  507.         struct drm_property_blob *edid_blob_ptr;
  508.         u32 property_ids[DRM_CONNECTOR_MAX_PROPERTY];
  509.         uint64_t property_values[DRM_CONNECTOR_MAX_PROPERTY];
  510.  
  511.         uint8_t polled; /* DRM_CONNECTOR_POLL_* */
  512.  
  513.         /* requested DPMS state */
  514.         int dpms;
  515.  
  516.         void *helper_private;
  517.  
  518.         /* forced on connector */
  519.         enum drm_connector_force force;
  520.         uint32_t encoder_ids[DRM_CONNECTOR_MAX_ENCODER];
  521.         uint32_t force_encoder_id;
  522.         struct drm_encoder *encoder; /* currently active encoder */
  523.  
  524.         int null_edid_counter; /* needed to workaround some HW bugs where we get all 0s */
  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.  */
  552. struct drm_mode_config_funcs {
  553.         struct drm_framebuffer *(*fb_create)(struct drm_device *dev, struct drm_file *file_priv, struct drm_mode_fb_cmd *mode_cmd);
  554.         void (*output_poll_changed)(struct drm_device *dev);
  555. };
  556.  
  557. struct drm_mode_group {
  558.         uint32_t num_crtcs;
  559.         uint32_t num_encoders;
  560.         uint32_t num_connectors;
  561.  
  562.         /* list of object IDs for this group */
  563.         uint32_t *id_list;
  564. };
  565.  
  566. /**
  567.  * drm_mode_config - Mode configuration control structure
  568.  *
  569.  */
  570. struct drm_mode_config {
  571.         struct mutex mutex; /* protects configuration (mode lists etc.) */
  572.         struct mutex idr_mutex; /* for IDR management */
  573.     struct idr crtc_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */
  574.         /* this is limited to one for now */
  575.         int num_fb;
  576.         struct list_head fb_list;
  577.         int num_connector;
  578.         struct list_head connector_list;
  579.         int num_encoder;
  580.         struct list_head encoder_list;
  581.  
  582.         int num_crtc;
  583.         struct list_head crtc_list;
  584.  
  585.         struct list_head property_list;
  586.  
  587.         int min_width, min_height;
  588.         int max_width, max_height;
  589.         struct drm_mode_config_funcs *funcs;
  590.         resource_size_t fb_base;
  591.  
  592.         /* output poll support */
  593.         bool poll_enabled;
  594. //      struct delayed_work output_poll_work;
  595.  
  596.         /* pointers to standard properties */
  597.         struct list_head property_blob_list;
  598.         struct drm_property *edid_property;
  599.         struct drm_property *dpms_property;
  600.  
  601.         /* DVI-I properties */
  602.         struct drm_property *dvi_i_subconnector_property;
  603.         struct drm_property *dvi_i_select_subconnector_property;
  604.  
  605.         /* TV properties */
  606.         struct drm_property *tv_subconnector_property;
  607.         struct drm_property *tv_select_subconnector_property;
  608.         struct drm_property *tv_mode_property;
  609.         struct drm_property *tv_left_margin_property;
  610.         struct drm_property *tv_right_margin_property;
  611.         struct drm_property *tv_top_margin_property;
  612.         struct drm_property *tv_bottom_margin_property;
  613.         struct drm_property *tv_brightness_property;
  614.         struct drm_property *tv_contrast_property;
  615.         struct drm_property *tv_flicker_reduction_property;
  616.         struct drm_property *tv_overscan_property;
  617.         struct drm_property *tv_saturation_property;
  618.         struct drm_property *tv_hue_property;
  619.  
  620.         /* Optional properties */
  621.         struct drm_property *scaling_mode_property;
  622.         struct drm_property *dithering_mode_property;
  623.         struct drm_property *dirty_info_property;
  624. };
  625.  
  626. #define obj_to_crtc(x) container_of(x, struct drm_crtc, base)
  627. #define obj_to_connector(x) container_of(x, struct drm_connector, base)
  628. #define obj_to_encoder(x) container_of(x, struct drm_encoder, base)
  629. #define obj_to_mode(x) container_of(x, struct drm_display_mode, base)
  630. #define obj_to_fb(x) container_of(x, struct drm_framebuffer, base)
  631. #define obj_to_property(x) container_of(x, struct drm_property, base)
  632. #define obj_to_blob(x) container_of(x, struct drm_property_blob, base)
  633.  
  634.  
  635. extern void drm_crtc_init(struct drm_device *dev,
  636.                           struct drm_crtc *crtc,
  637.                           const struct drm_crtc_funcs *funcs);
  638. extern void drm_crtc_cleanup(struct drm_crtc *crtc);
  639.  
  640. extern void drm_connector_init(struct drm_device *dev,
  641.                             struct drm_connector *connector,
  642.                             const struct drm_connector_funcs *funcs,
  643.                             int connector_type);
  644.  
  645. extern void drm_connector_cleanup(struct drm_connector *connector);
  646.  
  647. extern void drm_encoder_init(struct drm_device *dev,
  648.                              struct drm_encoder *encoder,
  649.                              const struct drm_encoder_funcs *funcs,
  650.                              int encoder_type);
  651.  
  652. extern void drm_encoder_cleanup(struct drm_encoder *encoder);
  653.  
  654. extern char *drm_get_connector_name(struct drm_connector *connector);
  655. extern char *drm_get_dpms_name(int val);
  656. extern char *drm_get_dvi_i_subconnector_name(int val);
  657. extern char *drm_get_dvi_i_select_name(int val);
  658. extern char *drm_get_tv_subconnector_name(int val);
  659. extern char *drm_get_tv_select_name(int val);
  660. extern void drm_fb_release(struct drm_file *file_priv);
  661. extern int drm_mode_group_init_legacy_group(struct drm_device *dev, struct drm_mode_group *group);
  662. extern struct edid *drm_get_edid(struct drm_connector *connector,
  663.                                  struct i2c_adapter *adapter);
  664. extern int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid);
  665. extern void drm_mode_probed_add(struct drm_connector *connector, struct drm_display_mode *mode);
  666. extern void drm_mode_remove(struct drm_connector *connector, struct drm_display_mode *mode);
  667. extern struct drm_display_mode *drm_mode_duplicate(struct drm_device *dev,
  668.                                                    const struct drm_display_mode *mode);
  669. extern void drm_mode_debug_printmodeline(struct drm_display_mode *mode);
  670. extern void drm_mode_config_init(struct drm_device *dev);
  671. extern void drm_mode_config_reset(struct drm_device *dev);
  672. extern void drm_mode_config_cleanup(struct drm_device *dev);
  673. extern void drm_mode_set_name(struct drm_display_mode *mode);
  674. extern bool drm_mode_equal(struct drm_display_mode *mode1, struct drm_display_mode *mode2);
  675. extern int drm_mode_width(struct drm_display_mode *mode);
  676. extern int drm_mode_height(struct drm_display_mode *mode);
  677.  
  678. /* for us by fb module */
  679. extern int drm_mode_attachmode_crtc(struct drm_device *dev,
  680.                                     struct drm_crtc *crtc,
  681.                                     struct drm_display_mode *mode);
  682. extern int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode);
  683.  
  684. extern struct drm_display_mode *drm_mode_create(struct drm_device *dev);
  685. extern void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode);
  686. extern void drm_mode_list_concat(struct list_head *head,
  687.                 struct list_head *new);
  688. extern void drm_mode_validate_size(struct drm_device *dev,
  689.                   struct list_head *mode_list,
  690.                   int maxX, int maxY, int maxPitch);
  691. extern void drm_mode_prune_invalid(struct drm_device *dev,
  692.                   struct list_head *mode_list, bool verbose);
  693. extern void drm_mode_sort(struct list_head *mode_list);
  694. extern int drm_mode_hsync(const struct drm_display_mode *mode);
  695. extern int drm_mode_vrefresh(const struct drm_display_mode *mode);
  696. extern void drm_mode_set_crtcinfo(struct drm_display_mode *p,
  697.                                   int adjust_flags);
  698. extern void drm_mode_connector_list_update(struct drm_connector *connector);
  699. extern int drm_mode_connector_update_edid_property(struct drm_connector *connector,
  700.                        struct edid *edid);
  701. extern int drm_connector_property_set_value(struct drm_connector *connector,
  702.                                          struct drm_property *property,
  703.                                          uint64_t value);
  704. extern int drm_connector_property_get_value(struct drm_connector *connector,
  705.                                          struct drm_property *property,
  706.                                          uint64_t *value);
  707. extern struct drm_display_mode *drm_crtc_mode_create(struct drm_device *dev);
  708. extern void drm_framebuffer_set_object(struct drm_device *dev,
  709.                                        unsigned long handle);
  710. extern int drm_framebuffer_init(struct drm_device *dev,
  711.                                 struct drm_framebuffer *fb,
  712.                                 const struct drm_framebuffer_funcs *funcs);
  713. extern void drm_framebuffer_cleanup(struct drm_framebuffer *fb);
  714. extern int drmfb_probe(struct drm_device *dev, struct drm_crtc *crtc);
  715. extern int drmfb_remove(struct drm_device *dev, struct drm_framebuffer *fb);
  716. extern void drm_crtc_probe_connector_modes(struct drm_device *dev, int maxX, int maxY);
  717. extern bool drm_crtc_in_use(struct drm_crtc *crtc);
  718.  
  719. extern int drm_connector_attach_property(struct drm_connector *connector,
  720.                                       struct drm_property *property, uint64_t init_val);
  721. extern struct drm_property *drm_property_create(struct drm_device *dev, int flags,
  722.                                                 const char *name, int num_values);
  723. extern void drm_property_destroy(struct drm_device *dev, struct drm_property *property);
  724. extern int drm_property_add_enum(struct drm_property *property, int index,
  725.                                  uint64_t value, const char *name);
  726. extern int drm_mode_create_dvi_i_properties(struct drm_device *dev);
  727. extern int drm_mode_create_tv_properties(struct drm_device *dev, int num_formats,
  728.                                      char *formats[]);
  729. extern int drm_mode_create_scaling_mode_property(struct drm_device *dev);
  730. extern int drm_mode_create_dithering_property(struct drm_device *dev);
  731. extern int drm_mode_create_dirty_info_property(struct drm_device *dev);
  732. extern char *drm_get_encoder_name(struct drm_encoder *encoder);
  733.  
  734. extern int drm_mode_connector_attach_encoder(struct drm_connector *connector,
  735.                                              struct drm_encoder *encoder);
  736. extern void drm_mode_connector_detach_encoder(struct drm_connector *connector,
  737.                                            struct drm_encoder *encoder);
  738. extern bool drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
  739.                                          int gamma_size);
  740. extern struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
  741.                 uint32_t id, uint32_t type);
  742. /* IOCTLs */
  743. extern int drm_mode_getresources(struct drm_device *dev,
  744.                                  void *data, struct drm_file *file_priv);
  745.  
  746. extern int drm_mode_getcrtc(struct drm_device *dev,
  747.                             void *data, struct drm_file *file_priv);
  748. extern int drm_mode_getconnector(struct drm_device *dev,
  749.                               void *data, struct drm_file *file_priv);
  750. extern int drm_mode_setcrtc(struct drm_device *dev,
  751.                             void *data, struct drm_file *file_priv);
  752. extern int drm_mode_cursor_ioctl(struct drm_device *dev,
  753.                                 void *data, struct drm_file *file_priv);
  754. extern int drm_mode_addfb(struct drm_device *dev,
  755.                           void *data, struct drm_file *file_priv);
  756. extern int drm_mode_rmfb(struct drm_device *dev,
  757.                          void *data, struct drm_file *file_priv);
  758. extern int drm_mode_getfb(struct drm_device *dev,
  759.                           void *data, struct drm_file *file_priv);
  760. extern int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
  761.                                   void *data, struct drm_file *file_priv);
  762. extern int drm_mode_addmode_ioctl(struct drm_device *dev,
  763.                                   void *data, struct drm_file *file_priv);
  764. extern int drm_mode_rmmode_ioctl(struct drm_device *dev,
  765.                                  void *data, struct drm_file *file_priv);
  766. extern int drm_mode_attachmode_ioctl(struct drm_device *dev,
  767.                                      void *data, struct drm_file *file_priv);
  768. extern int drm_mode_detachmode_ioctl(struct drm_device *dev,
  769.                                      void *data, struct drm_file *file_priv);
  770.  
  771. extern int drm_mode_getproperty_ioctl(struct drm_device *dev,
  772.                                       void *data, struct drm_file *file_priv);
  773. extern int drm_mode_getblob_ioctl(struct drm_device *dev,
  774.                                   void *data, struct drm_file *file_priv);
  775. extern int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
  776.                                               void *data, struct drm_file *file_priv);
  777. extern int drm_mode_hotplug_ioctl(struct drm_device *dev,
  778.                                   void *data, struct drm_file *file_priv);
  779. extern int drm_mode_replacefb(struct drm_device *dev,
  780.                               void *data, struct drm_file *file_priv);
  781. extern int drm_mode_getencoder(struct drm_device *dev,
  782.                                void *data, struct drm_file *file_priv);
  783. extern int drm_mode_gamma_get_ioctl(struct drm_device *dev,
  784.                                     void *data, struct drm_file *file_priv);
  785. extern int drm_mode_gamma_set_ioctl(struct drm_device *dev,
  786.                                     void *data, struct drm_file *file_priv);
  787. extern u8 *drm_find_cea_extension(struct edid *edid);
  788. extern bool drm_detect_hdmi_monitor(struct edid *edid);
  789. extern bool drm_detect_monitor_audio(struct edid *edid);
  790. extern int drm_mode_page_flip_ioctl(struct drm_device *dev,
  791.                                     void *data, struct drm_file *file_priv);
  792. extern struct drm_display_mode *drm_cvt_mode(struct drm_device *dev,
  793.                                 int hdisplay, int vdisplay, int vrefresh,
  794.                                 bool reduced, bool interlaced, bool margins);
  795. extern struct drm_display_mode *drm_gtf_mode(struct drm_device *dev,
  796.                                 int hdisplay, int vdisplay, int vrefresh,
  797.                                 bool interlaced, int margins);
  798. extern struct drm_display_mode *drm_gtf_mode_complex(struct drm_device *dev,
  799.                                 int hdisplay, int vdisplay, int vrefresh,
  800.                                 bool interlaced, int margins, int GTF_M,
  801.                                 int GTF_2C, int GTF_K, int GTF_2J);
  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. struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
  807.                                            int hsize, int vsize, int fresh);
  808. #endif /* __DRM_CRTC_H__ */
  809.