diff options
Diffstat (limited to 'os/fs')
| -rw-r--r-- | os/fs/fatfs/fatfs_fsimpl.cpp | 210 | ||||
| -rw-r--r-- | os/fs/fatfs/fatfs_fsimpl.hpp | 154 | ||||
| -rw-r--r-- | os/fs/fs.hpp | 198 |
3 files changed, 562 insertions, 0 deletions
diff --git a/os/fs/fatfs/fatfs_fsimpl.cpp b/os/fs/fatfs/fatfs_fsimpl.cpp new file mode 100644 index 000000000..567c7544a --- /dev/null +++ b/os/fs/fatfs/fatfs_fsimpl.cpp @@ -0,0 +1,210 @@ +/*
+ 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.cpp
+ * @brief FatFS file system wrapper.
+ *
+ * @addtogroup fs_fatfs_wrapper
+ * @{
+ */
+
+#include "ch.hpp"
+#include "fs.hpp"
+#include "fatfs_fsimpl.hpp"
+#include "hal.h"
+
+#define MSG_TERMINATE (msg_t)0
+
+#define ERR_OK (msg_t)0
+#define ERR_TERMINATING (msg_t)1
+#define ERR_UNKNOWN_MSG (msg_t)2
+
+using namespace chibios_rt;
+using namespace chibios_fs;
+
+/**
+ * @brief FatFS wrapper-related classes and interfaces.
+ */
+namespace chibios_fatfs {
+
+ typedef struct {
+ uint32_t msg_code;
+ union {
+ struct {
+
+ };
+ } op;
+ } wmsg_t;
+
+ /*------------------------------------------------------------------------*
+ * chibios_fatfs::FatFSFileWrapper *
+ *------------------------------------------------------------------------*/
+ FatFSFileWrapper::FatFSFileWrapper(void) : fs(NULL) {
+
+ }
+
+ FatFSFileWrapper::FatFSFileWrapper(FatFSWrapper *fsref) : fs(fsref) {
+
+ }
+
+ size_t FatFSFileWrapper::write(const uint8_t *bp, size_t n) {
+
+ return 0;
+ }
+
+ size_t FatFSFileWrapper::read(uint8_t *bp, size_t n) {
+
+ return 0;
+ }
+
+ msg_t FatFSFileWrapper::put(uint8_t b) {
+
+ return 0;
+ }
+
+ msg_t FatFSFileWrapper::get(void) {
+
+ return 0;
+ }
+
+ uint32_t FatFSFileWrapper::getAndClearLastError(void) {
+
+ return 0;
+ }
+
+ fileoffset_t FatFSFileWrapper::getSize(void) {
+
+ return 0;
+ }
+
+ fileoffset_t FatFSFileWrapper::getPosition(void) {
+
+ return 0;
+ }
+
+ uint32_t FatFSFileWrapper::setPosition(fileoffset_t offset) {
+
+ return 0;
+ }
+
+ /*------------------------------------------------------------------------*
+ * chibios_fatfs::FatFSFilesPool *
+ *------------------------------------------------------------------------*/
+ FatFSFilesPool::FatFSFilesPool(void) : ObjectsPool<FatFSFileWrapper,
+ FATFS_MAX_FILES>() {
+
+ }
+
+ /*------------------------------------------------------------------------*
+ * chibios_fatfs::FatFSServerThread *
+ *------------------------------------------------------------------------*/
+ FatFSServerThread::FatFSServerThread(void) :
+ BaseStaticThread<FATFS_THREAD_STACK_SIZE>() {
+ }
+
+ msg_t FatFSServerThread::main() {
+ msg_t sts;
+
+ setName("fatfs");
+
+ /* Synchronous messages processing loop.*/
+ while (true) {
+ ThreadReference tr = waitMessage();
+ msg_t msg = tr.getMessage();
+ switch (msg) {
+ case MSG_TERMINATE:
+ /* The server object is being destroyed, terminating.*/
+ tr.releaseMessage(ERR_TERMINATING);
+ return 0;
+ default:
+ sts = ERR_UNKNOWN_MSG;
+ }
+ tr.releaseMessage(sts);
+ }
+ }
+
+ void FatFSServerThread::stop(void) {
+
+ sendMessage(MSG_TERMINATE);
+ wait();
+ }
+
+ /*------------------------------------------------------------------------*
+ * chibios_fatfs::FatFSWrapper *
+ *------------------------------------------------------------------------*/
+ FatFSWrapper::FatFSWrapper(void) {
+
+ }
+
+ void FatFSWrapper::mount(void) {
+
+ server.start(FATFS_THREAD_PRIORITY);
+ }
+
+ void FatFSWrapper::unmount(void) {
+
+ server.stop();
+ }
+
+ uint32_t FatFSWrapper::getAndClearLastError(void) {
+
+ return 0;
+ }
+
+ void FatFSWrapper::synchronize(void) {
+
+ }
+
+ void FatFSWrapper::remove(const char *fname) {
+
+ (void)fname;
+ }
+
+ BaseFileStreamInterface *FatFSWrapper::open(const char *fname) {
+
+ (void)fname;
+ return NULL;
+ }
+
+ BaseFileStreamInterface *FatFSWrapper::openForRead(const char *fname) {
+
+ (void)fname;
+ return NULL;
+ }
+
+ BaseFileStreamInterface *FatFSWrapper::openForWrite(const char *fname) {
+
+ (void)fname;
+ return NULL;
+ }
+
+ BaseFileStreamInterface *FatFSWrapper::create(const char *fname) {
+
+ (void)fname;
+ return NULL;
+ }
+
+ void FatFSWrapper::close(BaseFileStreamInterface *file) {
+
+ (void)file;
+ }
+}
+
+/** @} */
diff --git a/os/fs/fatfs/fatfs_fsimpl.hpp b/os/fs/fatfs/fatfs_fsimpl.hpp new file mode 100644 index 000000000..0993a7917 --- /dev/null +++ b/os/fs/fatfs/fatfs_fsimpl.hpp @@ -0,0 +1,154 @@ +/*
+ 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_ */
+
+/** @} */
diff --git a/os/fs/fs.hpp b/os/fs/fs.hpp new file mode 100644 index 000000000..6a9bd6a5b --- /dev/null +++ b/os/fs/fs.hpp @@ -0,0 +1,198 @@ +/*
+ 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.hpp
+ * @brief File System interfaces header.
+ *
+ * @addtogroup fs_interface
+ * @{
+ */
+
+#ifndef _FS_HPP_
+#define _FS_HPP_
+
+#include "ch.hpp"
+
+/**
+ * @name Error codes
+ * @{
+ */
+/**
+ * @brief No error return code.
+ */
+#define FILE_OK 0
+
+/**
+ * @brief Error code from the file stream methods.
+ */
+#define FILE_ERROR 0xFFFFFFFFUL
+/** @} */
+
+/**
+ * @brief ChibiOS FS-related interfaces.
+ */
+namespace chibios_fs {
+
+ /**
+ * @brief File offset type.
+ */
+ typedef uint32_t fileoffset_t;
+
+ /*------------------------------------------------------------------------*
+ * chibios_fs::BaseFileStreamInterface *
+ *------------------------------------------------------------------------*/
+ /**
+ * @brief Interface of an abstract file object.
+ */
+ class BaseFileStreamInterface : public chibios_rt::BaseSequentialStreamInterface {
+ public:
+ /**
+ * @brief Returns an implementation dependent error code.
+ *
+ * @return An implementation-dependent error code.
+ *
+ * @api
+ */
+ virtual uint32_t getAndClearLastError(void) = 0;
+
+ /**
+ * @brief Returns the current file size.
+ *
+ * @return The file size.
+ * @retval FILE_ERROR if the operation failed.
+ *
+ * @api
+ */
+ virtual fileoffset_t getSize(void) = 0;
+
+ /**
+ * @brief Returns the current file pointer position.
+ *
+ * @return The current position inside the file.
+ * @retval FILE_ERROR if the operation failed.
+ *
+ * @api
+ */
+ virtual fileoffset_t getPosition(void) = 0;
+
+ /**
+ * @brief sets the current file pointer position.
+ *
+ * @param[in] offset new absolute position
+ * @return The operation status.
+ * @retval FILE_OK if no error.
+ * @retval FILE_ERROR if the operation failed.
+ *
+ * @api
+ */
+ virtual uint32_t setPosition(fileoffset_t offset) = 0;
+ };
+
+ /*------------------------------------------------------------------------*
+ * chibios_fs::BaseFileSystemInterface *
+ *------------------------------------------------------------------------*/
+ /**
+ * @brief Interface of an abstract file system object.
+ * @note The interface only exposes common features, the implementing
+ * classes can offer an extended interface.
+ */
+ class BaseFileSystemInterface {
+ public:
+ /**
+ * @brief Returns an implementation dependent error code.
+ *
+ * @return An implementation-dependent error code.
+ *
+ * @api
+ */
+ virtual uint32_t getAndClearLastError(void) = 0;
+
+ /**
+ * @brief Synchronizes caches with media device.
+ */
+ virtual void synchronize(void) = 0;
+
+ /**
+ * @brief Removes a file.
+ *
+ * @param[in] fname file name
+ *
+ * @api
+ */
+ virtual void remove(const char *fname) = 0;
+
+ /**
+ * @brief Opens a file for read and write.
+ *
+ * @param[in] fname file name
+ * @return An interface of a file object.
+ * @retval NULL if the operation failed.
+ *
+ * @api
+ */
+ virtual BaseFileStreamInterface *open(const char *fname) = 0;
+
+ /**
+ * @brief Opens a file for read only.
+ *
+ * @param[in] fname file name
+ * @return An interface of a file object.
+ * @retval NULL if the operation failed.
+ *
+ * @api
+ */
+ virtual BaseFileStreamInterface *openForRead(const char *fname) = 0;
+
+ /**
+ * @brief Opens a file for write only.
+ *
+ * @param[in] fname file name
+ * @return An interface of a file object.
+ * @retval NULL if the operation failed.
+ *
+ * @api
+ */
+ virtual BaseFileStreamInterface *openForWrite(const char *fname) = 0;
+
+ /**
+ * @brief Creates a file and opens it for write only.
+ * @details If a file with the same name already exists then it is
+ * overwritten.
+ *
+ * @param[in] fname file name
+ * @return An interface of a file object.
+ * @retval NULL if the operation failed.
+ *
+ * @api
+ */
+ virtual BaseFileStreamInterface *create(const char *fname) = 0;
+
+ /**
+ * @brief Closes a file.
+ *
+ * @api
+ */
+ virtual void close(BaseFileStreamInterface *file) = 0;
+ };
+}
+#endif /* _FS_HPP_ */
+
+/** @} */
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