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	/*
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