io/ide/idedevice.h

/*
 *      PearPC
 *      idedevice.h
 *
 *      Copyright (C) 2003 Sebastian Biallas (sb@biallas.net)
 *
 *      This program is free software; you can redistribute it and/or modify
 *      it under the terms of the GNU General Public License version 2 as
 *      published by the Free Software Foundation.
 *
 *      This program is distributed in the hope that it will be useful,
 *      but WITHOUT ANY WARRANTY; without even the implied warranty of
 *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *      GNU General Public License for more details.
 *
 *      You should have received a copy of the GNU General Public License
 *      along with this program; if not, write to the Free Software
 *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#ifndef __IDEDEVICE_H__
#define __IDEDEVICE_H__

#include "system/systhread.h"
#include "tools/data.h"
#include "tools/stream.h"

// The maximum size of a CD sector
#define IDE_MAX_BLOCK_SIZE 2352

class IDEDevice: public Object {
protected:
        int     mMode; // this is implementation specific
        bool    mAcquired;
        sys_mutex mMutex;
        char    *mName;
        /* only needed for deblocking read/write */
        uint8   mSector[IDE_MAX_BLOCK_SIZE]; 
        int     mSectorFirst; // first valid byte
        int     mSectorSize;
        char    *mError;

        /* only for prom */
public:
                IDEDevice(const char *name);
        virtual ~IDEDevice();
                bool    acquire();
                bool    release();      
        virtual void    setError(const char *error);
        virtual char *  getError();
        virtual uint    getBlockSize() = 0;
        virtual uint    getBlockCount() = 0;
        virtual bool    seek(uint64 blockno) = 0;
        virtual void    flush() = 0;
                void    setMode(int aMode, int aSectorSize);
        /* these are deblocking read/writes */
        virtual int     read(byte *buf, int size);
        virtual int     write(byte *buf, int size);
        /* these will always fetch a whole sector */
        virtual int     readBlock(byte *buf) = 0;
        virtual int     writeBlock(byte *buf) = 0;
        /* only for prom */
        virtual File *  promGetRawFile();
        virtual bool    promSeek(uint64 pos) = 0;
        virtual uint    promRead(byte *buf, uint size) = 0;
        
        virtual int     toString(char *buf, int buflen) const;
};

#endif
1	dpavlin	1	/*
2			* PearPC
3			* idedevice.h
4			*
5			* Copyright (C) 2003 Sebastian Biallas (sb@biallas.net)
6			*
7			* This program is free software; you can redistribute it and/or modify
8			* it under the terms of the GNU General Public License version 2 as
9			* published by the Free Software Foundation.
10			*
11			* This program is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			* GNU General Public License for more details.
15			*
16			* You should have received a copy of the GNU General Public License
17			* along with this program; if not, write to the Free Software
18			* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19			*/
20
21			#ifndef __IDEDEVICE_H__
22			#define __IDEDEVICE_H__
23
24			#include "system/systhread.h"
25			#include "tools/data.h"
26			#include "tools/stream.h"
27
28			// The maximum size of a CD sector
29			#define IDE_MAX_BLOCK_SIZE 2352
30
31			class IDEDevice: public Object {
32			protected:
33			int mMode; // this is implementation specific
34			bool mAcquired;
35			sys_mutex mMutex;
36			char *mName;
37			/* only needed for deblocking read/write */
38			uint8 mSector[IDE_MAX_BLOCK_SIZE];
39			int mSectorFirst; // first valid byte
40			int mSectorSize;
41			char *mError;
42
43			/* only for prom */
44			public:
45			IDEDevice(const char *name);
46			virtual ~IDEDevice();
47			bool acquire();
48			bool release();
49			virtual void setError(const char *error);
50			virtual char * getError();
51			virtual uint getBlockSize() = 0;
52			virtual uint getBlockCount() = 0;
53			virtual bool seek(uint64 blockno) = 0;
54			virtual void flush() = 0;
55			void setMode(int aMode, int aSectorSize);
56			/* these are deblocking read/writes */
57			virtual int read(byte *buf, int size);
58			virtual int write(byte *buf, int size);
59			/* these will always fetch a whole sector */
60			virtual int readBlock(byte *buf) = 0;
61			virtual int writeBlock(byte *buf) = 0;
62			/* only for prom */
63			virtual File * promGetRawFile();
64			virtual bool promSeek(uint64 pos) = 0;
65			virtual uint promRead(byte *buf, uint size) = 0;
66
67			virtual int toString(char *buf, int buflen) const;
68			};
69
70			#endif