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/*
* Generic card driving functions.
* Essentially, cascades calls to fbdev and vesa to initialize cards that
* do not have hardware-specific routines yet. Copied from the ati driver.
*
* Copyright (c) 2004 Brent Cook <busterb@mail.utexas.edu>
*
* This code is licensed under the GPL. See the file COPYING in the root
* directory of the sources for details.
*/
#ifndef _BACKEND_H_
#define _BACKEND_H_
#include "kdrive.h"
#ifdef KDRIVEFBDEV
#include <fbdev.h>
#endif
#ifdef KDRIVEVESA
#include <vesa.h>
#endif
typedef enum _BackendType {VESA, FBDEV} BackendType;
typedef struct _BackendInfo {
// backend info
BackendType type;
// backend internal structures
union {
#ifdef KDRIVEFBDEV
FbdevPriv fbdev;
#endif
#ifdef KDRIVEVESA
VesaCardPrivRec vesa;
#endif
} priv;
// pointers to helper functions for this backend
void (*cardfini)(KdCardInfo *);
void (*scrfini)(KdScreenInfo *);
Bool (*initScreen)(ScreenPtr);
Bool (*finishInitScreen)(ScreenPtr pScreen);
Bool (*createRes)(ScreenPtr);
void (*preserve)(KdCardInfo *);
void (*restore)(KdCardInfo *);
Bool (*dpms)(ScreenPtr, int);
Bool (*enable)(ScreenPtr);
void (*disable)(ScreenPtr);
void (*getColors)(ScreenPtr, int, int, xColorItem *);
void (*putColors)(ScreenPtr, int, int, xColorItem *);
} BackendInfo;
typedef union _BackendScreen {
#ifdef KDRIVEFBDEV
FbdevScrPriv fbdev;
#endif
#ifdef KDRIVEVESA
VesaScreenPrivRec vesa;
#endif
} BackendScreen;
Bool
backendInitialize(KdCardInfo *card, BackendInfo *backend);
Bool
backendScreenInitialize(KdScreenInfo *screen, BackendScreen *backendScreen,
BackendInfo *backendCard);
#endif
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