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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) <year> <copyright holders>
*
* 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>
#include "xf86mm.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.
*/
typedef struct _drmModeRes {
int count_fbs;
uint32_t *fbs;
int count_crtcs;
uint32_t *crtcs;
int count_outputs;
uint32_t *outputs;
int count_modes;
struct drm_mode_modeinfo *modes;
} drmModeRes, *drmModeResPtr;
typedef struct drm_mode_fb_cmd drmModeFB, *drmModeFBPtr;
typedef struct _drmModeProperty {
unsigned int prop_id;
unsigned int flags;
unsigned char name[DRM_PROP_NAME_LEN];
int count_values;
uint32_t *values;
int count_enums;
struct drm_mode_property_enum *enums;
} drmModePropertyRes, *drmModePropertyPtr;
typedef struct _drmModeCrtc {
unsigned int crtc_id;
unsigned int buffer_id; /**< FB id to connect to 0 = disconnect*/
uint32_t x, y; /**< Position on the frameuffer */
uint32_t width, height;
uint32_t mode; /**< Current mode used */
int count_outputs;
uint32_t outputs; /**< Outputs that are connected */
int count_possibles;
uint32_t possibles; /**< Outputs that can be connected */
int gamma_size; /**< Number of gamma stops */
} drmModeCrtc, *drmModeCrtcPtr;
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 _drmModeOutput {
unsigned int output_id;
unsigned int crtc; /**< Crtc currently connected to */
unsigned char name[DRM_OUTPUT_NAME_LEN];
drmModeConnection connection;
uint32_t mmWidth, mmHeight; /**< HxW in millimeters */
drmModeSubPixel subpixel;
int count_crtcs;
uint32_t crtcs; /**< Possible crtc to connect to */
int count_clones;
uint32_t clones; /**< Mask of clones */
int count_modes;
uint32_t *modes; /**< List of modes ids */
int count_props;
uint32_t *props; /**< List of property ids */
uint32_t *prop_values; /**< List of property values */
} drmModeOutput, *drmModeOutputPtr;
extern void drmModeFreeModeInfo( struct drm_mode_modeinfo *ptr );
extern void drmModeFreeResources( drmModeResPtr ptr );
extern void drmModeFreeFB( drmModeFBPtr ptr );
extern void drmModeFreeCrtc( drmModeCrtcPtr ptr );
extern void drmModeFreeOutput( drmModeOutputPtr 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, drmBO *bo,
uint32_t *buf_id);
/**
* Destroies the given framebuffer.
*/
extern int drmModeRmFB(int fd, uint32_t bufferId);
/*
* 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.
*/
extern int drmModeSetCrtc(int fd, uint32_t crtcId, uint32_t bufferId,
uint32_t x, uint32_t y, uint32_t modeId,
uint32_t *outputs, int count);
/*
* Output manipulation
*/
/**
* Retrive information about the output outputId.
*/
extern drmModeOutputPtr drmModeGetOutput(int fd,
uint32_t outputId);
/**
* Adds a new mode from the given mode info.
* Name must be unique.
*/
extern uint32_t drmModeAddMode(int fd, struct drm_mode_modeinfo *modeInfo);
/**
* Removes a mode created with AddMode, must be unused.
*/
extern int drmModeRmMode(int fd, uint32_t modeId);
/**
* Attaches the given mode to an output.
*/
extern int drmModeAttachMode(int fd, uint32_t outputId, uint32_t modeId);
/**
* Detaches a mode from the output
* must be unused, by the given mode.
*/
extern int drmModeDetachMode(int fd, uint32_t outputId, uint32_t modeId);
extern drmModePropertyPtr drmModeGetProperty(int fd, uint32_t propertyId);
extern void drmModeFreeProperty(drmModePropertyPtr ptr);
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