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//+----------------------------------------------------------------------------
//
// File: hal.h
//
// Module:
//
// Synopsis:
//
// Created: sgasch 5 Jul 2003
//
//+----------------------------------------------------------------------------
#ifndef HAL_H
#define HAL_H
//
// Video/CRT driver
//
#define BLACK (0)
#define BLUE (1)
#define GREEN (2)
#define CYAN (3)
#define RED (4)
#define MAGENTA (5)
#define YELLOW (6)
#define GRAY (7)
#define HIGH (8)
#define WHITE (HIGH | GRAY)
void
HalVideoSetCurrentColorAttribute(BYTE bFg, BYTE bBg);
void
HalVideoClearScreen(void);
void
HalVideoGetCursorPosition(BYTE *pbLine, BYTE *pbCol);
void
HalVideoSetCursorPosition(BYTE bLine, BYTE bCol);
void
HalVideoPutNullTerminatedString(BYTE *s);
void
HalVideoInitialize(BIOS_HARDWARE_BLOCK *phw);
void
HalVideoPrint(CHAR *szFormat, ...);
//
// Keyboard driver
//
#define KB_IRQ (1)
typedef WORD KEYCODE;
typedef struct _INTERRUPT_STATE
{
// The register contents at the time of the exception.
// We save these explicitly.
ULONG gs;
ULONG fs;
ULONG es;
ULONG ds;
ULONG ebp;
ULONG edi;
ULONG esi;
ULONG edx;
ULONG ecx;
ULONG ebx;
ULONG eax;
// We explicitly push the interrupt number.
// This makes it easy for the handler function to determine
// which interrupt occurred.
ULONG uIntNum;
// This may be pushed by the processor; if not, we push
// a dummy error code, so the stack layout is the same
// for every type of interrupt.
ULONG uErrorCode;
// These are always pushed on the stack by the processor.
ULONG eip;
ULONG cs;
ULONG eflags;
}
INTERRUPT_STATE;
typedef void (*INTERRUPT_HANDLER)(INTERRUPT_STATE *pState);
void HalInitializeInterrupts(void);
void HalInterruptInstallHandler(ULONG uIntNum, INTERRUPT_HANDLER p);
void HalInterruptDisable();
void HalInterruptEnable();
void HalIoDelay();
void HalTimerInt(INTERRUPT_STATE *p);
void HalKeyboardInt(INTERRUPT_STATE *p);
extern UINT64 g_ullTimeStampCounter;
ULONG HalReadTimestampCounter(void);
#endif // HAL_H
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