131 lines
3.7 KiB
C
131 lines
3.7 KiB
C
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// flash8k.h
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#ifndef _FLASH8K_H_
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#define _FLASH8K_H_
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#ifdef FLASH8K_INCLUDE_FILES
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#include "halp.h"
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#include "arccodes.h"
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#endif //FLASH8K_DONT_INCLUDE_FILES
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//
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// The value of HalpCMOSRamBase must be set at initialization
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//
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typedef enum _FLASH_OPERATIONS {
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FlashByteWrite,
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FlashEraseBlock
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} FLASH_OPERATIONS, *PFLASH_OPERATIONS;
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typedef struct _FLASH_DRIVER {
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PCHAR DeviceName;
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ARC_STATUS (*SetReadModeFunction)(PUCHAR address);
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ARC_STATUS (*WriteByteFunction)(PUCHAR address, UCHAR data);
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ARC_STATUS (*EraseBlockFunction)(PUCHAR address);
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PUCHAR (*BlockAlignFunction)(PUCHAR address);
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UCHAR (*ReadByteFunction)(PUCHAR address);
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BOOLEAN (*OverwriteCheckFunction)(UCHAR olddata, UCHAR newdata);
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ULONG (*BlockSizeFunction)(PUCHAR address);
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ULONG (*GetLastErrorFunction)(VOID);
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ULONG DeviceSize;
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UCHAR ErasedData;
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} FLASH_DRIVER, *PFLASH_DRIVER;
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extern PFLASH_DRIVER HalpFlashDriver;
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#define WRITE_CONFIG_RAM_DATA(boffset,data) \
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WRITE_REGISTER_UCHAR((PUCHAR)(boffset),((data) & 0xff))
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#define READ_CONFIG_RAM_DATA(boffset) \
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READ_REGISTER_UCHAR((PUCHAR)(boffset))
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PFLASH_DRIVER
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HalpInitializeFlashDriver(
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IN PCHAR NvRamPtr
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);
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ARC_STATUS
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HalpReadNVRamBuffer (
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OUT PCHAR DataPtr,
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IN PCHAR NvRamPtr,
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IN ULONG Length
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);
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ARC_STATUS
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HalpWriteNVRamBuffer (
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IN PCHAR NvRamPtr,
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IN PCHAR DataPtr,
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IN ULONG Length
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);
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ARC_STATUS
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HalpCopyNVRamBuffer (
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IN PCHAR NvDestPtr,
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IN PCHAR NvSrcPtr,
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IN ULONG Length
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);
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//
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// The following macros define the HalpFlash8k*() functions in terms
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// of the FlashDriver variable. FlashDriver points to a structure
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// containing information about the currently active flash driver.
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// Information in the structure pointed to by FlashDriver includes
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// functions within the driver to perform all device-dependent operations.
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//
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#define HalpFlash8kSetReadMode(boffset) \
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HalpFlashDriver->SetReadModeFunction( \
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(PUCHAR)((ULONG)(HalpCMOSRamBase) | \
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(ULONG)(boffset)))
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#define HalpFlash8kReadByte(boffset) \
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HalpFlashDriver->ReadByteFunction( \
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(PUCHAR)((ULONG)(HalpCMOSRamBase) | \
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(ULONG)(boffset)))
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#define HalpFlash8kWriteByte(boffset, data) \
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HalpFlashDriver->WriteByteFunction( \
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(PUCHAR)((ULONG)(HalpCMOSRamBase) | \
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(ULONG)(boffset)), ((data) & 0xff))
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#define HalpFlash8kOverwriteCheck(olddata, newdata) \
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HalpFlashDriver->OverwriteCheckFunction( \
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(olddata) & 0xff, (newdata) & 0xff)
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#define HalpFlash8kEraseBlock(boffset) \
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HalpFlashDriver->EraseBlockFunction( \
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(PUCHAR)((ULONG)(HalpCMOSRamBase) | \
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(ULONG)(boffset)))
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#define HalpFlash8kBlockAlign(boffset) \
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HalpFlashDriver->BlockAlignFunction( \
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(PUCHAR)((ULONG)(HalpCMOSRamBase) | \
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(ULONG)(boffset)))
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#define HalpFlash8kBlockSize(boffset) \
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HalpFlashDriver->BlockSizeFunction( \
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(PUCHAR)((ULONG)(HalpCMOSRamBase) | \
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(ULONG)(boffset)))
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#define HalpFlash8kCheckStatus(boffset, operation) \
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HalpFlashDriver->CheckStatusFunction( \
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(PUCHAR)((ULONG)(HalpCMOSRamBase) | \
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(ULONG)(boffset)), (operation))
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#define HalpFlash8kGetLastError() \
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HalpFlashDriver->GetLastErrorFunction()
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//
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// Error codes for GetLastError()
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//
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#define ERROR_VPP_LOW 1L
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#define ERROR_ERASE_ERROR 2L
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#define ERROR_WRITE_ERROR 3L
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#define ERROR_TIMEOUT 4L
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#define ERROR_UNKNOWN 127L
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#endif // _FLASH8K_H_
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