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dpavlin |
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/* |
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* PearPC |
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* idedevice.h |
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* |
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* Copyright (C) 2003 Sebastian Biallas (sb@biallas.net) |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 as |
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* published by the Free Software Foundation. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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*/ |
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#ifndef __IDEDEVICE_H__ |
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#define __IDEDEVICE_H__ |
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#include "system/systhread.h" |
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#include "tools/data.h" |
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#include "tools/stream.h" |
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// The maximum size of a CD sector |
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#define IDE_MAX_BLOCK_SIZE 2352 |
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class IDEDevice: public Object { |
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protected: |
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int mMode; // this is implementation specific |
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bool mAcquired; |
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sys_mutex mMutex; |
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char *mName; |
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/* only needed for deblocking read/write */ |
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uint8 mSector[IDE_MAX_BLOCK_SIZE]; |
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int mSectorFirst; // first valid byte |
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int mSectorSize; |
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char *mError; |
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/* only for prom */ |
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public: |
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IDEDevice(const char *name); |
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virtual ~IDEDevice(); |
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bool acquire(); |
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bool release(); |
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virtual void setError(const char *error); |
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virtual char * getError(); |
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virtual uint getBlockSize() = 0; |
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virtual uint getBlockCount() = 0; |
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virtual bool seek(uint64 blockno) = 0; |
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virtual void flush() = 0; |
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void setMode(int aMode, int aSectorSize); |
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/* these are deblocking read/writes */ |
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virtual int read(byte *buf, int size); |
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virtual int write(byte *buf, int size); |
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/* these will always fetch a whole sector */ |
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virtual int readBlock(byte *buf) = 0; |
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virtual int writeBlock(byte *buf) = 0; |
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/* only for prom */ |
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virtual File * promGetRawFile(); |
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virtual bool promSeek(uint64 pos) = 0; |
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virtual uint promRead(byte *buf, uint size) = 0; |
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virtual int toString(char *buf, int buflen) const; |
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}; |
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#endif |