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/* $XFree86: xc/programs/Xserver/hw/xfree86/ramdac/xf86RamDac.h,v 1.11 2000/03/21 21:15:28 alanh Exp $ */
#ifndef _XF86RAMDAC_H
#define _XF86RAMDAC_H 1
#include "colormapst.h"
#include "xf86Cursor.h"
/* Define unique vendor codes for RAMDAC's */
#define VENDOR_IBM 0x0000
#define VENDOR_BT 0x0001
#define VENDOR_TI 0x0002
typedef struct _RamDacRegRec {
/* This is probably the nastiest assumption, we allocate 1024 slots for
* ramdac registers, should be enough. I've checked IBM and TVP series
* and they seem o.k
* Then we allocate 768 entries for the DAC too. IBM640 needs 1024 -FIXME
*/
unsigned short DacRegs[0x400]; /* register set */
unsigned char DAC[0x300]; /* colour map */
Bool Overlay;
} RamDacRegRec, *RamDacRegRecPtr;
typedef struct _RamDacHWRegRec {
RamDacRegRec SavedReg;
RamDacRegRec ModeReg;
} RamDacHWRec, *RamDacHWRecPtr;
typedef struct _RamDacRec {
CARD32 RamDacType;
void (*LoadPalette)(
ScrnInfoPtr pScrn,
int numColors,
int *indices,
LOCO *colors,
VisualPtr pVisual
);
unsigned char (*ReadDAC)(
ScrnInfoPtr pScrn,
CARD32
);
void (*WriteDAC)(
ScrnInfoPtr pScrn,
CARD32,
unsigned char,
unsigned char
);
void (*WriteAddress)(
ScrnInfoPtr pScrn,
CARD32
);
void (*WriteData)(
ScrnInfoPtr pScrn,
unsigned char
);
void (*ReadAddress)(
ScrnInfoPtr pScrn,
CARD32
);
unsigned char (*ReadData)(
ScrnInfoPtr pScrn
);
} RamDacRec, *RamDacRecPtr;
typedef struct _RamDacHelperRec {
CARD32 RamDacType;
void (*Restore)(
ScrnInfoPtr pScrn,
RamDacRecPtr ramdacPtr,
RamDacRegRecPtr ramdacReg
);
void (*Save)(
ScrnInfoPtr pScrn,
RamDacRecPtr ramdacPtr,
RamDacRegRecPtr ramdacReg
);
void (*SetBpp)(
ScrnInfoPtr pScrn,
RamDacRegRecPtr ramdacReg
);
void (*HWCursorInit)(
xf86CursorInfoPtr infoPtr
);
} RamDacHelperRec, *RamDacHelperRecPtr;
#define RAMDACHWPTR(p) ((RamDacHWRecPtr)((p)->privates[RamDacGetHWIndex()].ptr))
typedef struct _RamdacScreenRec {
RamDacRecPtr RamDacRec;
} RamDacScreenRec, *RamDacScreenRecPtr;
#define RAMDACSCRPTR(p) ((RamDacScreenRecPtr)((p)->privates[RamDacGetScreenIndex()].ptr))->RamDacRec
extern int RamDacHWPrivateIndex;
extern int RamDacScreenPrivateIndex;
typedef struct {
int token;
} RamDacSupportedInfoRec, *RamDacSupportedInfoRecPtr;
RamDacRecPtr RamDacCreateInfoRec(void);
RamDacHelperRecPtr RamDacHelperCreateInfoRec(void);
void RamDacDestroyInfoRec(RamDacRecPtr RamDacRec);
void RamDacHelperDestroyInfoRec(RamDacHelperRecPtr RamDacRec);
Bool RamDacInit(ScrnInfoPtr pScrn, RamDacRecPtr RamDacRec);
void RamDacSetGamma(ScrnInfoPtr pScrn, Bool Real8BitDac);
void RamDacRestoreDACValues(ScrnInfoPtr pScrn);
Bool RamDacHandleColormaps(ScreenPtr pScreen, int maxColors, int sigRGBbits,
unsigned int flags);
void RamDacFreeRec(ScrnInfoPtr pScrn);
int RamDacGetHWIndex(void);
#endif /* _XF86RAMDAC_H */
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