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/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
2011,2012,2013 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS/RT 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, see <http://www.gnu.org/licenses/>.
*/
/**
* @file fs_fatfs_impl.hpp
* @brief FatFS file system wrapper header.
*
* @addtogroup cpp_library
* @{
*/
#include "ch.hpp"
#include "fs.hpp"
#ifndef _FS_FATFS_IMPL_HPP_
#define _FS_FATFS_IMPL_HPP_
/**
* @brief Stack size for the internal server thread.
*/
#if !defined(FATFS_THREAD_STACK_SIZE) || defined(__DOXYGEN__)
#define FATFS_THREAD_STACK_SIZE 1024
#endif
/**
* @brief Priority for the internal server thread.
*/
#if !defined(FATFS_THREAD_PRIORITY) || defined(__DOXYGEN__)
#define FATFS_THREAD_PRIORITY NORMALPRIO
#endif
/**
* @brief Maximum number of open files.
*/
#if !defined(FATFS_MAX_FILES) || defined(__DOXYGEN__)
#define FATFS_MAX_FILES 16
#endif
using namespace chibios_rt;
using namespace chibios_fs;
/**
* @brief FatFS wrapper-related classes and interfaces.
*/
namespace chibios_fatfs {
class FatFSWrapper;
/*------------------------------------------------------------------------*
* chibios_fatfs::FatFSFileWrapper *
*------------------------------------------------------------------------*/
class FatFSFileWrapper : public BaseFileStreamInterface {
friend class FatFSWrapper;
protected:
FatFSWrapper *fs;
public:
FatFSFileWrapper(void);
FatFSFileWrapper(FatFSWrapper *fsref);
virtual size_t write(const uint8_t *bp, size_t n);
virtual size_t read(uint8_t *bp, size_t n);
virtual msg_t put(uint8_t b);
virtual msg_t get(void);
virtual uint32_t getAndClearLastError(void);
virtual fileoffset_t getSize(void);
virtual fileoffset_t getPosition(void);
virtual uint32_t setPosition(fileoffset_t offset);
};
/*------------------------------------------------------------------------*
* chibios_fatfs::FatFSFilesPool *
*------------------------------------------------------------------------*/
/**
* @brief Class of memory pool of @p FatFSFileWrapper objects.
*/
class FatFSFilesPool : public ObjectsPool<FatFSFileWrapper,
FATFS_MAX_FILES> {
public:
FatFSFilesPool(void);
};
/*------------------------------------------------------------------------*
* chibios_fatfs::FatFSServerThread *
*------------------------------------------------------------------------*/
/**
* @brief Class of the internal server thread.
*/
class FatFSServerThread : public BaseStaticThread<FATFS_THREAD_STACK_SIZE> {
private:
FatFSFilesPool files;
protected:
virtual msg_t main(void);
public:
FatFSServerThread(void);
virtual void stop(void);
};
/*------------------------------------------------------------------------*
* chibios_fatfs::FatFSWrapper *
*------------------------------------------------------------------------*/
/**
* @brief Class of the FatFS wrapper.
*/
class FatFSWrapper : public chibios_fs::BaseFileSystemInterface {
friend class FatFSFileWrapper;
protected:
FatFSServerThread server;
public:
FatFSWrapper(void);
virtual uint32_t getAndClearLastError(void);
virtual void synchronize(void);
virtual void remove(const char *fname);
virtual BaseFileStreamInterface *open(const char *fname);
virtual BaseFileStreamInterface *openForRead(const char *fname);
virtual BaseFileStreamInterface *openForWrite(const char *fname);
virtual BaseFileStreamInterface *create(const char *fname);
virtual void close(BaseFileStreamInterface *file);
/**
* @brief Mounts the file system.
*/
void mount(void);
/**
* @brief Unmounts the file system.
*/
void unmount(void);
};
}
#endif /* _FS_FATFS_IMPL_HPP_ */
/** @} */
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