ramdisk.h

//
// ramdisk.h
//
// Copyright (C) 2016-2018  R. Stange <rsta2@o2online.de>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of
// this software and associated documentation files (the "Software"), to deal in
// the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
// the Software, and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
#ifndef _ramdisk_h
#define _ramdisk_h

#include "types.h"

#ifdef __circle__
	#include <circle/fs/fat/fatfs.h>
#endif

class CRAMDisk
{
public:
#ifdef __circle__
	CRAMDisk (CFATFileSystem *pFileSystem, unsigned nDrive);
#else
	CRAMDisk (unsigned nDrive);
#endif
	~CRAMDisk (void);

	boolean Initialize (void);

	boolean IsAvailable (void) const;

	boolean Read (unsigned nSector, void *pBuffer);
	boolean Write (unsigned nSector, const void *pBuffer);

	boolean Save (void);

private:
#ifdef __circle__
	CFATFileSystem *m_pFileSystem;
#endif
	unsigned m_nDrive;	// 0 or 1
	boolean m_bAvailable;

	boolean m_bWritten;

	u8 *m_pBuffer;
};

#endif