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/*
* \file xf86drmMode.h
* Header for DRM modesetting interface.
*
* \author Jakob Bornecrantz <wallbraker@gmail.com>
*
* \par Acknowledgements:
* Feb 2007, Dave Airlie <airlied@linux.ie>
*/
/*
* Copyright (c) 2007-2008 Tungsten Graphics, Inc., Cedar Park, Texas.
* Copyright (c) 2007-2008 Dave Airlie <airlied@linux.ie>
* Copyright (c) 2007-2008 Jakob Bornecrantz <wallbraker@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
*/
#include <drm.h>
/*
* This is the interface for modesetting for drm.
*
* In order to use this interface you must include either <stdint.h> or another
* header defining uint32_t, int32_t and uint16_t.
*
* It aims to provide a randr1.2 compatible interface for modesettings in the
* kernel, the interface is also ment to be used by libraries like EGL.
*
* More information can be found in randrproto.txt which can be found here:
* http://gitweb.freedesktop.org/?p=xorg/proto/randrproto.git
*
* There are some major diffrences to be noted. Unlike the randr1.2 proto you
* need to create the memory object of the framebuffer yourself with the ttm
* buffer object interface. This object needs to be pinned.
*/
/*
* If we pickup an old version of drm.h which doesn't include drm_mode.h
* we should redefine defines. This is so that builds doesn't breaks with
* new libdrm on old kernels.
*/
#ifndef _DRM_MODE_H
#define DRM_DISPLAY_INFO_LEN 32
#define DRM_CONNECTOR_NAME_LEN 32
#define DRM_DISPLAY_MODE_LEN 32
#define DRM_PROP_NAME_LEN 32
#define DRM_MODE_TYPE_BUILTIN (1<<0)
#define DRM_MODE_TYPE_CLOCK_C ((1<<1) | DRM_MODE_TYPE_BUILTIN)
#define DRM_MODE_TYPE_CRTC_C ((1<<2) | DRM_MODE_TYPE_BUILTIN)
#define DRM_MODE_TYPE_PREFERRED (1<<3)
#define DRM_MODE_TYPE_DEFAULT (1<<4)
#define DRM_MODE_TYPE_USERDEF (1<<5)
#define DRM_MODE_TYPE_DRIVER (1<<6)
/* Video mode flags */
/* bit compatible with the xorg definitions. */
#define DRM_MODE_FLAG_PHSYNC (1<<0)
#define DRM_MODE_FLAG_NHSYNC (1<<1)
#define DRM_MODE_FLAG_PVSYNC (1<<2)
#define DRM_MODE_FLAG_NVSYNC (1<<3)
#define DRM_MODE_FLAG_INTERLACE (1<<4)
#define DRM_MODE_FLAG_DBLSCAN (1<<5)
#define DRM_MODE_FLAG_CSYNC (1<<6)
#define DRM_MODE_FLAG_PCSYNC (1<<7)
#define DRM_MODE_FLAG_NCSYNC (1<<8)
#define DRM_MODE_FLAG_HSKEW (1<<9) /* hskew provided */
#define DRM_MODE_FLAG_BCAST (1<<10)
#define DRM_MODE_FLAG_PIXMUX (1<<11)
#define DRM_MODE_FLAG_DBLCLK (1<<12)
#define DRM_MODE_FLAG_CLKDIV2 (1<<13)
/* DPMS flags */
/* bit compatible with the xorg definitions. */
#define DRM_MODE_DPMS_ON 0
#define DRM_MODE_DPMS_STANDBY 1
#define DRM_MODE_DPMS_SUSPEND 2
#define DRM_MODE_DPMS_OFF 3
/* Scaling mode options */
#define DRM_MODE_SCALE_NON_GPU 0
#define DRM_MODE_SCALE_FULLSCREEN 1
#define DRM_MODE_SCALE_NO_SCALE 2
#define DRM_MODE_SCALE_ASPECT 3
/* Dithering mode options */
#define DRM_MODE_DITHERING_OFF 0
#define DRM_MODE_DITHERING_ON 1
#define DRM_MODE_ENCODER_NONE 0
#define DRM_MODE_ENCODER_DAC 1
#define DRM_MODE_ENCODER_TMDS 2
#define DRM_MODE_ENCODER_LVDS 3
#define DRM_MODE_ENCODER_TVDAC 4
#define DRM_MODE_SUBCONNECTOR_Automatic 0
#define DRM_MODE_SUBCONNECTOR_Unknown 0
#define DRM_MODE_SUBCONNECTOR_DVID 3
#define DRM_MODE_SUBCONNECTOR_DVIA 4
#define DRM_MODE_SUBCONNECTOR_Composite 5
#define DRM_MODE_SUBCONNECTOR_SVIDEO 6
#define DRM_MODE_SUBCONNECTOR_Component 8
#define DRM_MODE_CONNECTOR_Unknown 0
#define DRM_MODE_CONNECTOR_VGA 1
#define DRM_MODE_CONNECTOR_DVII 2
#define DRM_MODE_CONNECTOR_DVID 3
#define DRM_MODE_CONNECTOR_DVIA 4
#define DRM_MODE_CONNECTOR_Composite 5
#define DRM_MODE_CONNECTOR_SVIDEO 6
#define DRM_MODE_CONNECTOR_LVDS 7
#define DRM_MODE_CONNECTOR_Component 8
#define DRM_MODE_CONNECTOR_9PinDIN 9
#define DRM_MODE_CONNECTOR_DisplayPort 10
#define DRM_MODE_CONNECTOR_HDMIA 11
#define DRM_MODE_CONNECTOR_HDMIB 12
#define DRM_MODE_CONNECTOR_TV 13
#define DRM_MODE_CONNECTOR_eDP 14
#define DRM_MODE_PROP_PENDING (1<<0)
#define DRM_MODE_PROP_RANGE (1<<1)
#define DRM_MODE_PROP_IMMUTABLE (1<<2)
#define DRM_MODE_PROP_ENUM (1<<3) /* enumerated type with text strings */
#define DRM_MODE_PROP_BLOB (1<<4)
#define DRM_MODE_CURSOR_BO (1<<0)
#define DRM_MODE_CURSOR_MOVE (1<<1)
#endif /* _DRM_MODE_H */
/*
* Feature defines
*
* Just because these are defined doesn't mean that the kernel
* can do that feature, its just for new code vs old libdrm.
*/
#define DRM_MODE_FEATURE_KMS 1
#define DRM_MODE_FEATURE_DIRTYFB 1
typedef struct _drmModeRes {
int count_fbs;
uint32_t *fbs;
int count_crtcs;
uint32_t *crtcs;
int count_connectors;
uint32_t *connectors;
int count_encoders;
uint32_t *encoders;
uint32_t min_width, max_width;
uint32_t min_height, max_height;
} drmModeRes, *drmModeResPtr;
typedef struct _drmModeModeInfo {
uint32_t clock;
uint16_t hdisplay, hsync_start, hsync_end, htotal, hskew;
uint16_t vdisplay, vsync_start, vsync_end, vtotal, vscan;
uint32_t vrefresh;
uint32_t flags;
uint32_t type;
char name[DRM_DISPLAY_MODE_LEN];
} drmModeModeInfo, *drmModeModeInfoPtr;
typedef struct _drmModeFB {
uint32_t fb_id;
uint32_t width, height;
uint32_t pitch;
uint32_t bpp;
uint32_t depth;
/* driver specific handle */
uint32_t handle;
} drmModeFB, *drmModeFBPtr;
typedef struct drm_clip_rect drmModeClip, *drmModeClipPtr;
typedef struct _drmModePropertyBlob {
uint32_t id;
uint32_t length;
void *data;
} drmModePropertyBlobRes, *drmModePropertyBlobPtr;
typedef struct _drmModeProperty {
uint32_t prop_id;
uint32_t flags;
char name[DRM_PROP_NAME_LEN];
int count_values;
uint64_t *values; // store the blob lengths
int count_enums;
struct drm_mode_property_enum *enums;
int count_blobs;
uint32_t *blob_ids; // store the blob IDs
} drmModePropertyRes, *drmModePropertyPtr;
typedef struct _drmModeCrtc {
uint32_t crtc_id;
uint32_t buffer_id; /**< FB id to connect to 0 = disconnect */
uint32_t x, y; /**< Position on the framebuffer */
uint32_t width, height;
int mode_valid;
drmModeModeInfo mode;
int gamma_size; /**< Number of gamma stops */
} drmModeCrtc, *drmModeCrtcPtr;
typedef struct _drmModeEncoder {
uint32_t encoder_id;
uint32_t encoder_type;
uint32_t crtc_id;
uint32_t possible_crtcs;
uint32_t possible_clones;
} drmModeEncoder, *drmModeEncoderPtr;
typedef enum {
DRM_MODE_CONNECTED = 1,
DRM_MODE_DISCONNECTED = 2,
DRM_MODE_UNKNOWNCONNECTION = 3
} drmModeConnection;
typedef enum {
DRM_MODE_SUBPIXEL_UNKNOWN = 1,
DRM_MODE_SUBPIXEL_HORIZONTAL_RGB = 2,
DRM_MODE_SUBPIXEL_HORIZONTAL_BGR = 3,
DRM_MODE_SUBPIXEL_VERTICAL_RGB = 4,
DRM_MODE_SUBPIXEL_VERTICAL_BGR = 5,
DRM_MODE_SUBPIXEL_NONE = 6
} drmModeSubPixel;
typedef struct _drmModeConnector {
uint32_t connector_id;
uint32_t encoder_id; /**< Encoder currently connected to */
uint32_t connector_type;
uint32_t connector_type_id;
drmModeConnection connection;
uint32_t mmWidth, mmHeight; /**< HxW in millimeters */
drmModeSubPixel subpixel;
int count_modes;
drmModeModeInfoPtr modes;
int count_props;
uint32_t *props; /**< List of property ids */
uint64_t *prop_values; /**< List of property values */
int count_encoders;
uint32_t *encoders; /**< List of encoder ids */
} drmModeConnector, *drmModeConnectorPtr;
extern void drmModeFreeModeInfo( drmModeModeInfoPtr ptr );
extern void drmModeFreeResources( drmModeResPtr ptr );
extern void drmModeFreeFB( drmModeFBPtr ptr );
extern void drmModeFreeCrtc( drmModeCrtcPtr ptr );
extern void drmModeFreeConnector( drmModeConnectorPtr ptr );
extern void drmModeFreeEncoder( drmModeEncoderPtr ptr );
/**
* Retrives all of the resources associated with a card.
*/
extern drmModeResPtr drmModeGetResources(int fd);
/*
* FrameBuffer manipulation.
*/
/**
* Retrive information about framebuffer bufferId
*/
extern drmModeFBPtr drmModeGetFB(int fd, uint32_t bufferId);
/**
* Creates a new framebuffer with an buffer object as its scanout buffer.
*/
extern int drmModeAddFB(int fd, uint32_t width, uint32_t height, uint8_t depth,
uint8_t bpp, uint32_t pitch, uint32_t bo_handle,
uint32_t *buf_id);
/**
* Destroies the given framebuffer.
*/
extern int drmModeRmFB(int fd, uint32_t bufferId);
/**
* Mark a region of a framebuffer as dirty.
*/
extern int drmModeDirtyFB(int fd, uint32_t bufferId,
drmModeClipPtr clips, uint32_t num_clips);
/*
* Crtc functions
*/
/**
* Retrive information about the ctrt crtcId
*/
extern drmModeCrtcPtr drmModeGetCrtc(int fd, uint32_t crtcId);
/**
* Set the mode on a crtc crtcId with the given mode modeId.
*/
int drmModeSetCrtc(int fd, uint32_t crtcId, uint32_t bufferId,
uint32_t x, uint32_t y, uint32_t *connectors, int count,
drmModeModeInfoPtr mode);
/*
* Cursor functions
*/
/**
* Set the cursor on crtc
*/
int drmModeSetCursor(int fd, uint32_t crtcId, uint32_t bo_handle, uint32_t width, uint32_t height);
/**
* Move the cursor on crtc
*/
int drmModeMoveCursor(int fd, uint32_t crtcId, int x, int y);
/**
* Encoder functions
*/
drmModeEncoderPtr drmModeGetEncoder(int fd, uint32_t encoder_id);
/*
* Connector manipulation
*/
/**
* Retrive information about the connector connectorId.
*/
extern drmModeConnectorPtr drmModeGetConnector(int fd,
uint32_t connectorId);
/**
* Attaches the given mode to an connector.
*/
extern int drmModeAttachMode(int fd, uint32_t connectorId, drmModeModeInfoPtr mode_info);
/**
* Detaches a mode from the connector
* must be unused, by the given mode.
*/
extern int drmModeDetachMode(int fd, uint32_t connectorId, drmModeModeInfoPtr mode_info);
extern drmModePropertyPtr drmModeGetProperty(int fd, uint32_t propertyId);
extern void drmModeFreeProperty(drmModePropertyPtr ptr);
extern drmModePropertyBlobPtr drmModeGetPropertyBlob(int fd, uint32_t blob_id);
extern void drmModeFreePropertyBlob(drmModePropertyBlobPtr ptr);
extern int drmModeConnectorSetProperty(int fd, uint32_t connector_id, uint32_t property_id,
uint64_t value);
extern int drmCheckModesettingSupported(const char *busid);
extern int drmModeCrtcSetGamma(int fd, uint32_t crtc_id, uint32_t size,
uint16_t *red, uint16_t *green, uint16_t *blue);
extern int drmModeCrtcGetGamma(int fd, uint32_t crtc_id, uint32_t size,
uint16_t *red, uint16_t *green, uint16_t *blue);
extern int drmModePageFlip(int fd, uint32_t crtc_id, uint32_t fb_id,
uint32_t flags, void *user_data);
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