55 lines
1.3 KiB
C++
55 lines
1.3 KiB
C++
#ifndef __Storage_H__
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#define __Storage_H__
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#include "Kernel\Sys.h"
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// 存储接口
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class Storage
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{
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public:
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// 读取
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virtual bool Read(uint address, Buffer& bs) const = 0;
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// 写入
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virtual bool Write(uint address, const Buffer& bs) const = 0;
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};
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// 块存储接口
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class BlockStorage : public Storage
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{
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public:
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int Size; // 容量大小，字节
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uint Start; // 起始地址
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int Block; // 每块字节数
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bool ReadModifyWrite; // 是否读改写
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bool XIP; // 是否映射片上执行
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// 读取
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virtual bool Read(uint address, Buffer& bs) const;
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// 写入
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virtual bool Write(uint address, const Buffer& bs) const;
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// 清空
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virtual bool Memset(uint address, byte data, int len) const;
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// 擦除
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virtual bool Erase(uint address, int len) const;
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protected:
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// 写入块
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virtual bool WriteBlock(uint address, const byte* buf, int len, bool inc) const = 0;
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// 擦除块
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virtual bool EraseBlock(uint address) const = 0;
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// 指定块是否被擦除
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virtual bool IsErased(uint address, int len) const;
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};
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// 字符存储接口
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class CharStorage : public Storage
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{
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public:
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// 读取
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virtual bool Read(uint address, Buffer& bs) const;
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// 写入
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virtual bool Write(uint address, const Buffer& bs) const;
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};
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#endif
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