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// flash8k.h
#ifndef _FLASH8K_H_
#define _FLASH8K_H_
#include "halp.h"
#include "arccodes.h"
//
// The value of HalpCMOSRamBase must be set at initialization
//
typedef enum _FLASH_OPERATIONS {
FlashByteWrite,
FlashEraseSector
} FLASH_OPERATIONS, *PFLASH_OPERATIONS;
typedef struct _FLASH_DRIVER {
PCHAR DeviceName;
ARC_STATUS (*SetReadModeFunction)(PUCHAR Offset);
ARC_STATUS (*WriteByteFunction)(PUCHAR Offset, UCHAR data);
ARC_STATUS (*EraseSectorFunction)(PUCHAR Offset);
PUCHAR (*SectorAlignFunction)(PUCHAR Offset);
UCHAR (*ReadByteFunction)(PUCHAR Offset);
BOOLEAN (*OverwriteCheckFunction)(UCHAR olddata, UCHAR newdata);
ULONG (*SectorSizeFunction)(PUCHAR Offset);
ULONG DeviceSize;
UCHAR ErasedData;
} FLASH_DRIVER, *PFLASH_DRIVER;
extern PFLASH_DRIVER HalpFlashDriver;
//
// The following macros define the HalpFlash8k*() functions in terms
// of the FlashDriver variable. FlashDriver points to a structure
// containing information about the currently active flash driver.
// Information in the structure pointed to by FlashDriver includes
// functions within the driver to perform all device-dependent operations.
//
#define HalpFlash8kSetReadMode(boffset) \
HalpFlashDriver->SetReadModeFunction( \
(PUCHAR)((ULONG)(HalpCMOSRamBase) | \
(ULONG)(boffset)))
#define HalpFlash8kReadByte(boffset) \
HalpFlashDriver->ReadByteFunction( \
(PUCHAR)((ULONG)(HalpCMOSRamBase) | \
(ULONG)(boffset)))
#define HalpFlash8kWriteByte(boffset, data) \
HalpFlashDriver->WriteByteFunction( \
(PUCHAR)((ULONG)(HalpCMOSRamBase) | \
(ULONG)(boffset)), ((data) & 0xff))
#define HalpFlash8kOverwriteCheck(olddata, newdata) \
HalpFlashDriver->OverwriteCheckFunction( \
(olddata) & 0xff, (newdata) & 0xff)
#define HalpFlash8kEraseSector(boffset) \
HalpFlashDriver->EraseSectorFunction( \
(PUCHAR)((ULONG)(HalpCMOSRamBase) | \
(ULONG)(boffset)))
#define HalpFlash8kSectorAlign(boffset) \
HalpFlashDriver->SectorAlignFunction( \
(PUCHAR)((ULONG)(HalpCMOSRamBase) | \
(ULONG)(boffset)))
#define HalpFlash8kSectorSize(boffset) \
HalpFlashDriver->SectorSizeFunction( \
(PUCHAR)((ULONG)(HalpCMOSRamBase) | \
(ULONG)(boffset)))
#define HalpFlash8kCheckStatus(boffset, operation) \
HalpFlashDriver->CheckStatusFunction( \
(PUCHAR)((ULONG)(HalpCMOSRamBase) | \
(ULONG)(boffset)), (operation))
#endif // _FLASH8K_H_
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