291 lines
7.3 KiB
C
291 lines
7.3 KiB
C
/*
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* \file xf86drmMode.h
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* Header for DRM modesetting interface.
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*
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* \author Jakob Bornecrantz <wallbraker@gmail.com>
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*
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* \par Acknowledgements:
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* Feb 2007, Dave Airlie <airlied@linux.ie>
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*/
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/*
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* Copyright (c) <year> <copyright holders>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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*/
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#include <drm.h>
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#include "xf86mm.h"
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/*
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* This is the interface for modesetting for drm.
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*
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* In order to use this interface you must include either <stdint.h> or another
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* header defining uint32_t, int32_t and uint16_t.
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*
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* It aims to provide a randr compatible interface for modesettings in the
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* kernel, the interface is also ment to be used by libraries like EGL.
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*
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* More information can be found in randrproto.txt which can be found here:
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* http://gitweb.freedesktop.org/?p=xorg/proto/randrproto.git
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*
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* All framebuffer, crtc and output ids start at 1 while 0 is either an invalid
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* parameter or used to indicate that the command should disconnect from the
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* currently bound target, as with drmModeMapOutput.
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*
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* Currently only one framebuffer exist and has a id of 1, which is also the
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* default framebuffer and should allways be avaible to the client, unless
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* it is locked/used or any other limiting state is applied on it.
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*
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*/
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typedef struct _drmModeGammaTriple {
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uint16_t r, g, b;
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} drmModeGammaTriple, *drmModeGammaTriplePtr;
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typedef struct _drmModeRes {
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uint32_t frameBufferId;
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int count_crtcs;
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uint32_t *crtcs;
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int count_outputs;
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uint32_t *outputs;
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int count_modes;
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struct drm_mode_modeinfo *modes;
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} drmModeRes, *drmModeResPtr;
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typedef struct _drmModeFrameBuffer {
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uint32_t width;
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uint32_t height;
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uint32_t pitch;
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uint8_t bpp;
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} drmModeFrameBuffer, *drmModeFrameBufferPtr;
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typedef struct _drmModeCrtc {
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unsigned int bufferId; /**< Buffer currently connected to */
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uint32_t x, y; /**< Position on the frameuffer */
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uint32_t width, height;
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uint32_t mode; /**< Current mode used */
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int count_outputs;
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uint32_t outputs; /**< Outputs that are connected */
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int count_possibles;
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uint32_t possibles; /**< Outputs that can be connected */
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int gamma_size; /**< Number of gamma stops */
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} drmModeCrtc, *drmModeCrtcPtr;
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typedef enum {
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DRM_MODE_CONNECTED = 1,
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DRM_MODE_DISCONNECTED = 2,
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DRM_MODE_UNKNOWNCONNECTION = 3
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} drmModeConnection;
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typedef enum {
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DRM_MODE_SUBPIXEL_UNKNOWN = 1,
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DRM_MODE_SUBPIXEL_HORIZONTAL_RGB = 2,
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DRM_MODE_SUBPIXEL_HORIZONTAL_BGR = 3,
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DRM_MODE_SUBPIXEL_VERTICAL_RGB = 4,
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DRM_MODE_SUBPIXEL_VERTICAL_BGR = 5,
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DRM_MODE_SUBPIXEL_NONE = 6
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} drmModeSubPixel;
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typedef struct _drmModeOutput {
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unsigned int crtc; /**< Crtc currently connected to */
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unsigned char name[DRM_OUTPUT_NAME_LEN];
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drmModeConnection connection;
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uint32_t mmWidth, mmHeight; /**< HxW in millimeters */
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drmModeSubPixel subpixel;
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int count_crtcs;
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uint32_t crtcs; /**< Possible crtc to connect to */
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int count_clones;
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uint32_t clones; /**< Mask of clones */
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int count_modes;
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uint32_t *modes; /**< List of modes ids */
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} drmModeOutput, *drmModeOutputPtr;
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/*
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* RRSetScreenConfig o
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* RRGetScreenInfo o
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*
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* RRGetScreenSizeRange - see frameBuffer info
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* RRSetScreenSize
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* RRGetScreenResources
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*
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* RRGetOutputInfo
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*
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* RRListOutputProperties *
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* RRQueryOutputProperty *
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* RRConfigureOutputProperty *
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* RRChangeOutputProperty *
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* RRDeleteOutputProperty *
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* RRGetOutputProperty *
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*
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* RRCreateMode
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* RRDestroyMode
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* RRAddOutputMode
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* RRDeleteOutputMode
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*
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* RRGetCrtcInfo
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* RRSetCrtcConfig
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*
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* RRGetCrtcGammaSize - see crtc info
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* RRGetCrtcGamma
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* RRSetCrtcGamma
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*
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* drmModeGetResources
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* drmModeForceProbe
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*
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* drmModeGetFrameBufferInfo
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* drmModeSetFrameBufferSize
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*
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* drmModeGetCrtcInfo
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* drmModeSetCrtcConfig
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* drmModeGetCrtcGamma
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* drmModeSetCrtcGamma
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*
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* drmModeGetOutputInfo
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*
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* drmModeAddMode
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* drmModeDestroyMode
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* drmModeAddOutputMode
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* drmModeDeleteOutputMode
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*/
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extern void drmModeFreeModeInfo( struct drm_mode_modeinfo *ptr );
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extern void drmModeFreeResources( drmModeResPtr ptr );
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extern void drmModeFreeFrameBuffer( drmModeFrameBufferPtr ptr );
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extern void drmModeFreeCrtc( drmModeCrtcPtr ptr );
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extern void drmModeFreeOutput( drmModeOutputPtr ptr );
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/**
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* Retrives all of the resources associated with a card.
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*/
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extern drmModeResPtr drmModeGetResources(int fd);
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/**
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* Forces a probe of the give output outputId, on 0 all will be probed.
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*/
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extern int drmModeForceProbe(int fd, uint32_t outputId);
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/*
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* FrameBuffer manipulation.
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*/
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/**
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* Retrive information about framebuffer bufferId
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*/
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extern drmModeFrameBufferPtr drmModeGetFramebuffer(int fd,
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uint32_t bufferId);
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/**
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* Creates a new framebuffer with an buffer object as its scanout buffer.
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*/
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extern int drmModeAddFB(int fd, uint32_t width, uint32_t height,
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uint8_t bpp, uint32_t pitch, drmBO *bo, uint32_t *buf_id);
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/**
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* Destroies the given framebuffer.
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*/
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extern int drmModeRmFB(int fd, uint32_t bufferId);
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/**
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* Changes the scanout buffer to the given buffer object.
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*/
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extern int drmModeFlipFrameBuffer(int fd, uint32_t bufferId, drmBO *bo);
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/*
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* Crtc function.
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*/
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/**
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* Retrive information about the ctrt crtcId
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*/
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extern drmModeCrtcPtr drmModeGetCrtc(int fd, uint32_t crtcId);
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/**
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* Set the mode on a crtc crtcId with the given mode modeId.
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*/
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extern int drmModeSetCrtc(int fd, uint32_t crtcId, uint32_t bufferId,
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uint32_t x, uint32_t y, uint32_t modeId,
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uint32_t *outputs, int count);
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/**
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* Gets the gamma from a crtc
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*/
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extern drmModeGammaTriplePtr drmModeGetCrtcGamma(int fd, uint32_t crtcId,
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int *count);
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/**
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* Sets the gamma on a crtc
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*/
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extern int drmModeSetCrtcGamma(int fd, uint32_t crtcId,
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drmModeGammaTriplePtr ptr, int count);
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/*
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* Output manipulation
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*/
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/**
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* Retrive information about the output outputId.
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*/
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extern drmModeOutputPtr drmModeGetOutput(int fd,
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uint32_t outputId);
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/**
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* Creates a new mode from the given mode info.
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* Name must be unique.
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*/
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extern uint32_t drmModeNewMode(int fd, struct drm_mode_modeinfo *modeInfo);
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/**
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* Destroys a mode created with CreateMode, must be unused.
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*/
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extern int drmModeDesMode(int fd, uint32_t modeId);
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/**
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* Adds the given mode to an output.
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*/
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extern int drmModeAddMode(int fd, uint32_t outputId, uint32_t modeId);
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/**
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* Deletes a mode Added with AddOutputMode from the output,
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* must be unused, by the given mode.
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*/
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extern int drmModeDelMode(int fd, uint32_t outputId, uint32_t modeId);
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