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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.         u8 cea_rev;
  209.  
  210.         char *raw_edid; /* if any */
  211. };
  212.  
  213. struct drm_framebuffer_funcs {
  214.         void (*destroy)(struct drm_framebuffer *framebuffer);
  215.         int (*create_handle)(struct drm_framebuffer *fb,
  216.                              struct drm_file *file_priv,
  217.                              unsigned int *handle);
  218.         /**
  219.          * Optinal callback for the dirty fb ioctl.
  220.          *
  221.          * Userspace can notify the driver via this callback
  222.          * that a area of the framebuffer has changed and should
  223.          * be flushed to the display hardware.
  224.          *
  225.          * See documentation in drm_mode.h for the struct
  226.          * drm_mode_fb_dirty_cmd for more information as all
  227.          * the semantics and arguments have a one to one mapping
  228.          * on this function.
  229.          */
  230.         int (*dirty)(struct drm_framebuffer *framebuffer,
  231.                      struct drm_file *file_priv, unsigned flags,
  232.                      unsigned color, struct drm_clip_rect *clips,
  233.                      unsigned num_clips);
  234. };
  235.  
  236. struct drm_framebuffer {
  237.         struct drm_device *dev;
  238.         struct list_head head;
  239.         struct drm_mode_object base;
  240.         const struct drm_framebuffer_funcs *funcs;
  241.         unsigned int pitch;
  242.         unsigned int width;
  243.         unsigned int height;
  244.         /* depth can be 15 or 16 */
  245.         unsigned int depth;
  246.         int bits_per_pixel;
  247.         int flags;
  248.         struct list_head filp_head;
  249.         /* if you are using the helper */
  250.         void *helper_private;
  251. };
  252.  
  253. struct drm_property_blob {
  254.         struct drm_mode_object base;
  255.         struct list_head head;
  256.         unsigned int length;
  257.         void *data;
  258. };
  259.  
  260. struct drm_property_enum {
  261.         uint64_t value;
  262.         struct list_head head;
  263.         char name[DRM_PROP_NAME_LEN];
  264. };
  265.  
  266. struct drm_property {
  267.     struct      list_head head;
  268.     struct      drm_mode_object base;
  269.     uint32_t    flags;
  270.     char        name[DRM_PROP_NAME_LEN];
  271.     uint32_t    num_values;
  272.     uint64_t    *values;
  273.  
  274.         struct list_head enum_blob_list;
  275. };
  276.  
  277. struct drm_crtc;
  278. struct drm_connector;
  279. struct drm_encoder;
  280. struct drm_pending_vblank_event;
  281.  
  282. /**
  283.  * drm_crtc_funcs - control CRTCs for a given device
  284.  * @reset: reset CRTC after state has been invalidate (e.g. resume)
  285.  * @dpms: control display power levels
  286.  * @save: save CRTC state
  287.  * @resore: restore CRTC state
  288.  * @lock: lock the CRTC
  289.  * @unlock: unlock the CRTC
  290.  * @shadow_allocate: allocate shadow pixmap
  291.  * @shadow_create: create shadow pixmap for rotation support
  292.  * @shadow_destroy: free shadow pixmap
  293.  * @mode_fixup: fixup proposed mode
  294.  * @mode_set: set the desired mode on the CRTC
  295.  * @gamma_set: specify color ramp for CRTC
  296.  * @destroy: deinit and free object.
  297.  *
  298.  * The drm_crtc_funcs structure is the central CRTC management structure
  299.  * in the DRM.  Each CRTC controls one or more connectors (note that the name
  300.  * CRTC is simply historical, a CRTC may control LVDS, VGA, DVI, TV out, etc.
  301.  * connectors, not just CRTs).
  302.  *
  303.  * Each driver is responsible for filling out this structure at startup time,
  304.  * in addition to providing other modesetting features, like i2c and DDC
  305.  * bus accessors.
  306.  */
  307. struct drm_crtc_funcs {
  308.         /* Save CRTC state */
  309.         void (*save)(struct drm_crtc *crtc); /* suspend? */
  310.         /* Restore CRTC state */
  311.         void (*restore)(struct drm_crtc *crtc); /* resume? */
  312.         /* Reset CRTC state */
  313.         void (*reset)(struct drm_crtc *crtc);
  314.  
  315.         /* cursor controls */
  316.         int (*cursor_set)(struct drm_crtc *crtc, struct drm_file *file_priv,
  317.                           uint32_t handle, uint32_t width, uint32_t height);
  318.         int (*cursor_move)(struct drm_crtc *crtc, int x, int y);
  319.  
  320.         /* Set gamma on the CRTC */
  321.         void (*gamma_set)(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b,
  322.                           uint32_t start, uint32_t size);
  323.         /* Object destroy routine */
  324.         void (*destroy)(struct drm_crtc *crtc);
  325.  
  326.         int (*set_config)(struct drm_mode_set *set);
  327.  
  328.         /*
  329.          * Flip to the given framebuffer.  This implements the page
  330.          * flip ioctl described in drm_mode.h, specifically, the
  331.          * implementation must return immediately and block all
  332.          * rendering to the current fb until the flip has completed.
  333.          * If userspace set the event flag in the ioctl, the event
  334.          * argument will point to an event to send back when the flip
  335.          * completes, otherwise it will be NULL.
  336.          */
  337.         int (*page_flip)(struct drm_crtc *crtc,
  338.                          struct drm_framebuffer *fb,
  339.                          struct drm_pending_vblank_event *event);
  340. };
  341.  
  342. /**
  343.  * drm_crtc - central CRTC control structure
  344.  * @enabled: is this CRTC enabled?
  345.  * @x: x position on screen
  346.  * @y: y position on screen
  347.  * @funcs: CRTC control functions
  348.  *
  349.  * Each CRTC may have one or more connectors associated with it.  This structure
  350.  * allows the CRTC to be controlled.
  351.  */
  352. struct drm_crtc {
  353.         struct drm_device *dev;
  354.         struct list_head head;
  355.  
  356.         struct drm_mode_object base;
  357.  
  358.         /* framebuffer the connector is currently bound to */
  359.         struct drm_framebuffer *fb;
  360.  
  361.         bool enabled;
  362.  
  363.         /* Requested mode from modesetting. */
  364.         struct drm_display_mode mode;
  365.  
  366.         /* Programmed mode in hw, after adjustments for encoders,
  367.          * crtc, panel scaling etc. Needed for timestamping etc.
  368.          */
  369.         struct drm_display_mode hwmode;
  370.  
  371.         int x, y;
  372.         const struct drm_crtc_funcs *funcs;
  373.  
  374.         /* CRTC gamma size for reporting to userspace */
  375.         uint32_t gamma_size;
  376.         uint16_t *gamma_store;
  377.  
  378.         /* Constants needed for precise vblank and swap timestamping. */
  379.         s64 framedur_ns, linedur_ns, pixeldur_ns;
  380.  
  381.         /* if you are using the helper */
  382.         void *helper_private;
  383. };
  384.  
  385.  
  386. /**
  387.  * drm_connector_funcs - control connectors on a given device
  388.  * @dpms: set power state (see drm_crtc_funcs above)
  389.  * @save: save connector state
  390.  * @restore: restore connector state
  391.  * @reset: reset connector after state has been invalidate (e.g. resume)
  392.  * @mode_valid: is this mode valid on the given connector?
  393.  * @mode_fixup: try to fixup proposed mode for this connector
  394.  * @mode_set: set this mode
  395.  * @detect: is this connector active?
  396.  * @get_modes: get mode list for this connector
  397.  * @set_property: property for this connector may need update
  398.  * @destroy: make object go away
  399.  * @force: notify the driver the connector is forced on
  400.  *
  401.  * Each CRTC may have one or more connectors attached to it.  The functions
  402.  * below allow the core DRM code to control connectors, enumerate available modes,
  403.  * etc.
  404.  */
  405. struct drm_connector_funcs {
  406.         void (*dpms)(struct drm_connector *connector, int mode);
  407.         void (*save)(struct drm_connector *connector);
  408.         void (*restore)(struct drm_connector *connector);
  409.         void (*reset)(struct drm_connector *connector);
  410.  
  411.         /* Check to see if anything is attached to the connector.
  412.          * @force is set to false whilst polling, true when checking the
  413.          * connector due to user request. @force can be used by the driver
  414.          * to avoid expensive, destructive operations during automated
  415.          * probing.
  416.          */
  417.         enum drm_connector_status (*detect)(struct drm_connector *connector,
  418.                                             bool force);
  419.         int (*fill_modes)(struct drm_connector *connector, uint32_t max_width, uint32_t max_height);
  420.         int (*set_property)(struct drm_connector *connector, struct drm_property *property,
  421.                              uint64_t val);
  422.         void (*destroy)(struct drm_connector *connector);
  423.         void (*force)(struct drm_connector *connector);
  424. };
  425.  
  426. struct drm_encoder_funcs {
  427.         void (*reset)(struct drm_encoder *encoder);
  428.         void (*destroy)(struct drm_encoder *encoder);
  429. };
  430.  
  431. #define DRM_CONNECTOR_MAX_UMODES 16
  432. #define DRM_CONNECTOR_MAX_PROPERTY 16
  433. #define DRM_CONNECTOR_LEN 32
  434. #define DRM_CONNECTOR_MAX_ENCODER 2
  435.  
  436. /**
  437.  * drm_encoder - central DRM encoder structure
  438.  */
  439. struct drm_encoder {
  440.         struct drm_device *dev;
  441.         struct list_head head;
  442.  
  443.         struct drm_mode_object base;
  444.         int encoder_type;
  445.         uint32_t possible_crtcs;
  446.         uint32_t possible_clones;
  447.  
  448.         struct drm_crtc *crtc;
  449.         const struct drm_encoder_funcs *funcs;
  450.         void *helper_private;
  451. };
  452.  
  453. enum drm_connector_force {
  454.         DRM_FORCE_UNSPECIFIED,
  455.         DRM_FORCE_OFF,
  456.         DRM_FORCE_ON,         /* force on analog part normally */
  457.         DRM_FORCE_ON_DIGITAL, /* for DVI-I use digital connector */
  458. };
  459.  
  460. /* should we poll this connector for connects and disconnects */
  461. /* hot plug detectable */
  462. #define DRM_CONNECTOR_POLL_HPD (1 << 0)
  463. /* poll for connections */
  464. #define DRM_CONNECTOR_POLL_CONNECT (1 << 1)
  465. /* can cleanly poll for disconnections without flickering the screen */
  466. /* DACs should rarely do this without a lot of testing */
  467. #define DRM_CONNECTOR_POLL_DISCONNECT (1 << 2)
  468.  
  469. /**
  470.  * drm_connector - central DRM connector control structure
  471.  * @crtc: CRTC this connector is currently connected to, NULL if none
  472.  * @interlace_allowed: can this connector handle interlaced modes?
  473.  * @doublescan_allowed: can this connector handle doublescan?
  474.  * @available_modes: modes available on this connector (from get_modes() + user)
  475.  * @initial_x: initial x position for this connector
  476.  * @initial_y: initial y position for this connector
  477.  * @status: connector connected?
  478.  * @funcs: connector control functions
  479.  *
  480.  * Each connector may be connected to one or more CRTCs, or may be clonable by
  481.  * another connector if they can share a CRTC.  Each connector also has a specific
  482.  * position in the broader display (referred to as a 'screen' though it could
  483.  * span multiple monitors).
  484.  */
  485. struct drm_connector {
  486.         struct drm_device *dev;
  487.         struct device kdev;
  488.         struct device_attribute *attr;
  489.         struct list_head head;
  490.  
  491.         struct drm_mode_object base;
  492.  
  493.         int connector_type;
  494.         int connector_type_id;
  495.         bool interlace_allowed;
  496.         bool doublescan_allowed;
  497.         struct list_head modes; /* list of modes on this connector */
  498.  
  499.         int initial_x, initial_y;
  500.         enum drm_connector_status status;
  501.  
  502.         /* these are modes added by probing with DDC or the BIOS */
  503.         struct list_head probed_modes;
  504.  
  505.         struct drm_display_info display_info;
  506.         const struct drm_connector_funcs *funcs;
  507.  
  508.         struct list_head user_modes;
  509.         struct drm_property_blob *edid_blob_ptr;
  510.         u32 property_ids[DRM_CONNECTOR_MAX_PROPERTY];
  511.         uint64_t property_values[DRM_CONNECTOR_MAX_PROPERTY];
  512.  
  513.         uint8_t polled; /* DRM_CONNECTOR_POLL_* */
  514.  
  515.         /* requested DPMS state */
  516.         int dpms;
  517.  
  518.         void *helper_private;
  519.  
  520.         /* forced on connector */
  521.         enum drm_connector_force force;
  522.         uint32_t encoder_ids[DRM_CONNECTOR_MAX_ENCODER];
  523.         uint32_t force_encoder_id;
  524.         struct drm_encoder *encoder; /* currently active encoder */
  525.  
  526.         int null_edid_counter; /* needed to workaround some HW bugs where we get all 0s */
  527. };
  528.  
  529. /**
  530.  * struct drm_mode_set
  531.  *
  532.  * Represents a single crtc the connectors that it drives with what mode
  533.  * and from which framebuffer it scans out from.
  534.  *
  535.  * This is used to set modes.
  536.  */
  537. struct drm_mode_set {
  538.         struct list_head head;
  539.  
  540.         struct drm_framebuffer *fb;
  541.         struct drm_crtc *crtc;
  542.         struct drm_display_mode *mode;
  543.  
  544.         uint32_t x;
  545.         uint32_t y;
  546.  
  547.         struct drm_connector **connectors;
  548.         size_t num_connectors;
  549. };
  550.  
  551. /**
  552.  * struct drm_mode_config_funcs - configure CRTCs for a given screen layout
  553.  */
  554. struct drm_mode_config_funcs {
  555.         struct drm_framebuffer *(*fb_create)(struct drm_device *dev, struct drm_file *file_priv, struct drm_mode_fb_cmd *mode_cmd);
  556.         void (*output_poll_changed)(struct drm_device *dev);
  557. };
  558.  
  559. struct drm_mode_group {
  560.         uint32_t num_crtcs;
  561.         uint32_t num_encoders;
  562.         uint32_t num_connectors;
  563.  
  564.         /* list of object IDs for this group */
  565.         uint32_t *id_list;
  566. };
  567.  
  568. /**
  569.  * drm_mode_config - Mode configuration control structure
  570.  *
  571.  */
  572. struct drm_mode_config {
  573.         struct mutex mutex; /* protects configuration (mode lists etc.) */
  574.         struct mutex idr_mutex; /* for IDR management */
  575.     struct idr crtc_idr; /* use this idr for all IDs, fb, crtc, connector, modes - just makes life easier */
  576.         /* this is limited to one for now */
  577.         int num_fb;
  578.         struct list_head fb_list;
  579.         int num_connector;
  580.         struct list_head connector_list;
  581.         int num_encoder;
  582.         struct list_head encoder_list;
  583.  
  584.         int num_crtc;
  585.         struct list_head crtc_list;
  586.  
  587.         struct list_head property_list;
  588.  
  589.         int min_width, min_height;
  590.         int max_width, max_height;
  591.         struct drm_mode_config_funcs *funcs;
  592.         resource_size_t fb_base;
  593.  
  594.         /* output poll support */
  595.         bool poll_enabled;
  596. //      struct delayed_work output_poll_work;
  597.  
  598.         /* pointers to standard properties */
  599.         struct list_head property_blob_list;
  600.         struct drm_property *edid_property;
  601.         struct drm_property *dpms_property;
  602.  
  603.         /* DVI-I properties */
  604.         struct drm_property *dvi_i_subconnector_property;
  605.         struct drm_property *dvi_i_select_subconnector_property;
  606.  
  607.         /* TV properties */
  608.         struct drm_property *tv_subconnector_property;
  609.         struct drm_property *tv_select_subconnector_property;
  610.         struct drm_property *tv_mode_property;
  611.         struct drm_property *tv_left_margin_property;
  612.         struct drm_property *tv_right_margin_property;
  613.         struct drm_property *tv_top_margin_property;
  614.         struct drm_property *tv_bottom_margin_property;
  615.         struct drm_property *tv_brightness_property;
  616.         struct drm_property *tv_contrast_property;
  617.         struct drm_property *tv_flicker_reduction_property;
  618.         struct drm_property *tv_overscan_property;
  619.         struct drm_property *tv_saturation_property;
  620.         struct drm_property *tv_hue_property;
  621.  
  622.         /* Optional properties */
  623.         struct drm_property *scaling_mode_property;
  624.         struct drm_property *dithering_mode_property;
  625.         struct drm_property *dirty_info_property;
  626. };
  627.  
  628. #define obj_to_crtc(x) container_of(x, struct drm_crtc, base)
  629. #define obj_to_connector(x) container_of(x, struct drm_connector, base)
  630. #define obj_to_encoder(x) container_of(x, struct drm_encoder, base)
  631. #define obj_to_mode(x) container_of(x, struct drm_display_mode, base)
  632. #define obj_to_fb(x) container_of(x, struct drm_framebuffer, base)
  633. #define obj_to_property(x) container_of(x, struct drm_property, base)
  634. #define obj_to_blob(x) container_of(x, struct drm_property_blob, base)
  635.  
  636.  
  637. extern void drm_crtc_init(struct drm_device *dev,
  638.                           struct drm_crtc *crtc,
  639.                           const struct drm_crtc_funcs *funcs);
  640. extern void drm_crtc_cleanup(struct drm_crtc *crtc);
  641.  
  642. extern void drm_connector_init(struct drm_device *dev,
  643.                             struct drm_connector *connector,
  644.                             const struct drm_connector_funcs *funcs,
  645.                             int connector_type);
  646.  
  647. extern void drm_connector_cleanup(struct drm_connector *connector);
  648.  
  649. extern void drm_encoder_init(struct drm_device *dev,
  650.                              struct drm_encoder *encoder,
  651.                              const struct drm_encoder_funcs *funcs,
  652.                              int encoder_type);
  653.  
  654. extern void drm_encoder_cleanup(struct drm_encoder *encoder);
  655.  
  656. extern char *drm_get_connector_name(struct drm_connector *connector);
  657. extern char *drm_get_dpms_name(int val);
  658. extern char *drm_get_dvi_i_subconnector_name(int val);
  659. extern char *drm_get_dvi_i_select_name(int val);
  660. extern char *drm_get_tv_subconnector_name(int val);
  661. extern char *drm_get_tv_select_name(int val);
  662. extern void drm_fb_release(struct drm_file *file_priv);
  663. extern int drm_mode_group_init_legacy_group(struct drm_device *dev, struct drm_mode_group *group);
  664. extern struct edid *drm_get_edid(struct drm_connector *connector,
  665.                                  struct i2c_adapter *adapter);
  666. extern int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid);
  667. extern void drm_mode_probed_add(struct drm_connector *connector, struct drm_display_mode *mode);
  668. extern void drm_mode_remove(struct drm_connector *connector, struct drm_display_mode *mode);
  669. extern struct drm_display_mode *drm_mode_duplicate(struct drm_device *dev,
  670.                                                    const struct drm_display_mode *mode);
  671. extern void drm_mode_debug_printmodeline(struct drm_display_mode *mode);
  672. extern void drm_mode_config_init(struct drm_device *dev);
  673. extern void drm_mode_config_reset(struct drm_device *dev);
  674. extern void drm_mode_config_cleanup(struct drm_device *dev);
  675. extern void drm_mode_set_name(struct drm_display_mode *mode);
  676. extern bool drm_mode_equal(struct drm_display_mode *mode1, struct drm_display_mode *mode2);
  677. extern int drm_mode_width(struct drm_display_mode *mode);
  678. extern int drm_mode_height(struct drm_display_mode *mode);
  679.  
  680. /* for us by fb module */
  681. extern int drm_mode_attachmode_crtc(struct drm_device *dev,
  682.                                     struct drm_crtc *crtc,
  683.                                     struct drm_display_mode *mode);
  684. extern int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode);
  685.  
  686. extern struct drm_display_mode *drm_mode_create(struct drm_device *dev);
  687. extern void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode);
  688. extern void drm_mode_list_concat(struct list_head *head,
  689.                 struct list_head *new);
  690. extern void drm_mode_validate_size(struct drm_device *dev,
  691.                   struct list_head *mode_list,
  692.                   int maxX, int maxY, int maxPitch);
  693. extern void drm_mode_prune_invalid(struct drm_device *dev,
  694.                   struct list_head *mode_list, bool verbose);
  695. extern void drm_mode_sort(struct list_head *mode_list);
  696. extern int drm_mode_hsync(const struct drm_display_mode *mode);
  697. extern int drm_mode_vrefresh(const struct drm_display_mode *mode);
  698. extern void drm_mode_set_crtcinfo(struct drm_display_mode *p,
  699.                                   int adjust_flags);
  700. extern void drm_mode_connector_list_update(struct drm_connector *connector);
  701. extern int drm_mode_connector_update_edid_property(struct drm_connector *connector,
  702.                        struct edid *edid);
  703. extern int drm_connector_property_set_value(struct drm_connector *connector,
  704.                                          struct drm_property *property,
  705.                                          uint64_t value);
  706. extern int drm_connector_property_get_value(struct drm_connector *connector,
  707.                                          struct drm_property *property,
  708.                                          uint64_t *value);
  709. extern struct drm_display_mode *drm_crtc_mode_create(struct drm_device *dev);
  710. extern void drm_framebuffer_set_object(struct drm_device *dev,
  711.                                        unsigned long handle);
  712. extern int drm_framebuffer_init(struct drm_device *dev,
  713.                                 struct drm_framebuffer *fb,
  714.                                 const struct drm_framebuffer_funcs *funcs);
  715. extern void drm_framebuffer_cleanup(struct drm_framebuffer *fb);
  716. extern int drmfb_probe(struct drm_device *dev, struct drm_crtc *crtc);
  717. extern int drmfb_remove(struct drm_device *dev, struct drm_framebuffer *fb);
  718. extern void drm_crtc_probe_connector_modes(struct drm_device *dev, int maxX, int maxY);
  719. extern bool drm_crtc_in_use(struct drm_crtc *crtc);
  720.  
  721. extern int drm_connector_attach_property(struct drm_connector *connector,
  722.                                       struct drm_property *property, uint64_t init_val);
  723. extern struct drm_property *drm_property_create(struct drm_device *dev, int flags,
  724.                                                 const char *name, int num_values);
  725. extern void drm_property_destroy(struct drm_device *dev, struct drm_property *property);
  726. extern int drm_property_add_enum(struct drm_property *property, int index,
  727.                                  uint64_t value, const char *name);
  728. extern int drm_mode_create_dvi_i_properties(struct drm_device *dev);
  729. extern int drm_mode_create_tv_properties(struct drm_device *dev, int num_formats,
  730.                                      char *formats[]);
  731. extern int drm_mode_create_scaling_mode_property(struct drm_device *dev);
  732. extern int drm_mode_create_dithering_property(struct drm_device *dev);
  733. extern int drm_mode_create_dirty_info_property(struct drm_device *dev);
  734. extern char *drm_get_encoder_name(struct drm_encoder *encoder);
  735.  
  736. extern int drm_mode_connector_attach_encoder(struct drm_connector *connector,
  737.                                              struct drm_encoder *encoder);
  738. extern void drm_mode_connector_detach_encoder(struct drm_connector *connector,
  739.                                            struct drm_encoder *encoder);
  740. extern bool drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
  741.                                          int gamma_size);
  742. extern struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
  743.                 uint32_t id, uint32_t type);
  744. /* IOCTLs */
  745. extern int drm_mode_getresources(struct drm_device *dev,
  746.                                  void *data, struct drm_file *file_priv);
  747.  
  748. extern int drm_mode_getcrtc(struct drm_device *dev,
  749.                             void *data, struct drm_file *file_priv);
  750. extern int drm_mode_getconnector(struct drm_device *dev,
  751.                               void *data, struct drm_file *file_priv);
  752. extern int drm_mode_setcrtc(struct drm_device *dev,
  753.                             void *data, struct drm_file *file_priv);
  754. extern int drm_mode_cursor_ioctl(struct drm_device *dev,
  755.                                 void *data, struct drm_file *file_priv);
  756. extern int drm_mode_addfb(struct drm_device *dev,
  757.                           void *data, struct drm_file *file_priv);
  758. extern int drm_mode_rmfb(struct drm_device *dev,
  759.                          void *data, struct drm_file *file_priv);
  760. extern int drm_mode_getfb(struct drm_device *dev,
  761.                           void *data, struct drm_file *file_priv);
  762. extern int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
  763.                                   void *data, struct drm_file *file_priv);
  764. extern int drm_mode_addmode_ioctl(struct drm_device *dev,
  765.                                   void *data, struct drm_file *file_priv);
  766. extern int drm_mode_rmmode_ioctl(struct drm_device *dev,
  767.                                  void *data, struct drm_file *file_priv);
  768. extern int drm_mode_attachmode_ioctl(struct drm_device *dev,
  769.                                      void *data, struct drm_file *file_priv);
  770. extern int drm_mode_detachmode_ioctl(struct drm_device *dev,
  771.                                      void *data, struct drm_file *file_priv);
  772.  
  773. extern int drm_mode_getproperty_ioctl(struct drm_device *dev,
  774.                                       void *data, struct drm_file *file_priv);
  775. extern int drm_mode_getblob_ioctl(struct drm_device *dev,
  776.                                   void *data, struct drm_file *file_priv);
  777. extern int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
  778.                                               void *data, struct drm_file *file_priv);
  779. extern int drm_mode_hotplug_ioctl(struct drm_device *dev,
  780.                                   void *data, struct drm_file *file_priv);
  781. extern int drm_mode_replacefb(struct drm_device *dev,
  782.                               void *data, struct drm_file *file_priv);
  783. extern int drm_mode_getencoder(struct drm_device *dev,
  784.                                void *data, struct drm_file *file_priv);
  785. extern int drm_mode_gamma_get_ioctl(struct drm_device *dev,
  786.                                     void *data, struct drm_file *file_priv);
  787. extern int drm_mode_gamma_set_ioctl(struct drm_device *dev,
  788.                                     void *data, struct drm_file *file_priv);
  789. extern u8 *drm_find_cea_extension(struct edid *edid);
  790. extern bool drm_detect_hdmi_monitor(struct edid *edid);
  791. extern bool drm_detect_monitor_audio(struct edid *edid);
  792. extern int drm_mode_page_flip_ioctl(struct drm_device *dev,
  793.                                     void *data, struct drm_file *file_priv);
  794. extern struct drm_display_mode *drm_cvt_mode(struct drm_device *dev,
  795.                                 int hdisplay, int vdisplay, int vrefresh,
  796.                                 bool reduced, bool interlaced, bool margins);
  797. extern struct drm_display_mode *drm_gtf_mode(struct drm_device *dev,
  798.                                 int hdisplay, int vdisplay, int vrefresh,
  799.                                 bool interlaced, int margins);
  800. extern struct drm_display_mode *drm_gtf_mode_complex(struct drm_device *dev,
  801.                                 int hdisplay, int vdisplay, int vrefresh,
  802.                                 bool interlaced, int margins, int GTF_M,
  803.                                 int GTF_2C, int GTF_K, int GTF_2J);
  804. extern int drm_add_modes_noedid(struct drm_connector *connector,
  805.                                 int hdisplay, int vdisplay);
  806.  
  807. extern int drm_edid_header_is_valid(const u8 *raw_edid);
  808. extern bool drm_edid_is_valid(struct edid *edid);
  809. struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev,
  810.                                            int hsize, int vsize, int fresh);
  811. #endif /* __DRM_CRTC_H__ */
  812.