hw/xfree86/ramdac/xf86RamDac.h

   1
   2 #ifndef _XF86RAMDAC_H
   3 #define _XF86RAMDAC_H 1
   4
   5 #include "colormapst.h"
   6 #include "xf86Cursor.h"
   7
   8 /* Define unique vendor codes for RAMDAC's */
   9 #define VENDOR_IBM      0x0000
  10 #define VENDOR_BT       0x0001
  11 #define VENDOR_TI       0x0002
  12
  13 typedef struct _RamDacRegRec {
  14 /* This is probably the nastiest assumption, we allocate 1024 slots for
  15  * ramdac registers, should be enough. I've checked IBM and TVP series
  16  * and they seem o.k
  17  * Then we allocate 768 entries for the DAC too. IBM640 needs 1024 -FIXME
  18  */
  19     unsigned short DacRegs[0x400];      /* register set */
  20     unsigned char DAC[0x300];   /* colour map */
  21     Bool Overlay;
  22 } RamDacRegRec, *RamDacRegRecPtr;
  23
  24 typedef struct _RamDacHWRegRec {
  25     RamDacRegRec SavedReg;
  26     RamDacRegRec ModeReg;
  27 } RamDacHWRec, *RamDacHWRecPtr;
  28
  29 typedef struct _RamDacRec {
  30     CARD32 RamDacType;
  31
  32     void (*LoadPalette) (ScrnInfoPtr pScrn,
  33                          int numColors,
  34                          int *indices, LOCO * colors, VisualPtr pVisual);
  35
  36     unsigned char (*ReadDAC) (ScrnInfoPtr pScrn, CARD32);
  37
  38     void (*WriteDAC) (ScrnInfoPtr pScrn, CARD32, unsigned char, unsigned char);
  39
  40     void (*WriteAddress) (ScrnInfoPtr pScrn, CARD32);
  41
  42     void (*WriteData) (ScrnInfoPtr pScrn, unsigned char);
  43
  44     void (*ReadAddress) (ScrnInfoPtr pScrn, CARD32);
  45
  46     unsigned char (*ReadData) (ScrnInfoPtr pScrn);
  47 } RamDacRec, *RamDacRecPtr;
  48
  49 typedef struct _RamDacHelperRec {
  50     CARD32 RamDacType;
  51
  52     void (*Restore) (ScrnInfoPtr pScrn,
  53                      RamDacRecPtr ramdacPtr, RamDacRegRecPtr ramdacReg);
  54
  55     void (*Save) (ScrnInfoPtr pScrn,
  56                   RamDacRecPtr ramdacPtr, RamDacRegRecPtr ramdacReg);
  57
  58     void (*SetBpp) (ScrnInfoPtr pScrn, RamDacRegRecPtr ramdacReg);
  59
  60     void (*HWCursorInit) (xf86CursorInfoPtr infoPtr);
  61 } RamDacHelperRec, *RamDacHelperRecPtr;
  62
  63 #define RAMDACHWPTR(p) ((RamDacHWRecPtr)((p)->privates[RamDacGetHWIndex()].ptr))
  64
  65 typedef struct _RamdacScreenRec {
  66     RamDacRecPtr RamDacRec;
  67 } RamDacScreenRec, *RamDacScreenRecPtr;
  68
  69 #define RAMDACSCRPTR(p) ((RamDacScreenRecPtr)((p)->privates[RamDacGetScreenIndex()].ptr))->RamDacRec
  70
  71 extern _X_EXPORT int RamDacHWPrivateIndex;
  72 extern _X_EXPORT int RamDacScreenPrivateIndex;
  73
  74 typedef struct {
  75     int token;
  76 } RamDacSupportedInfoRec, *RamDacSupportedInfoRecPtr;
  77
  78 extern _X_EXPORT RamDacRecPtr RamDacCreateInfoRec(void);
  79 extern _X_EXPORT RamDacHelperRecPtr RamDacHelperCreateInfoRec(void);
  80 extern _X_EXPORT void RamDacDestroyInfoRec(RamDacRecPtr RamDacRec);
  81 extern _X_EXPORT void RamDacHelperDestroyInfoRec(RamDacHelperRecPtr RamDacRec);
  82 extern _X_EXPORT Bool RamDacInit(ScrnInfoPtr pScrn, RamDacRecPtr RamDacRec);
  83 extern _X_EXPORT Bool RamDacHandleColormaps(ScreenPtr pScreen, int maxColors,
  84                                             int sigRGBbits, unsigned int flags);
  85 extern _X_EXPORT void RamDacFreeRec(ScrnInfoPtr pScrn);
  86 extern _X_EXPORT int RamDacGetHWIndex(void);
  87
  88 #endif                          /* _XF86RAMDAC_H */