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/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
2011,2012 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
/**
* @brief FatFS wrapper-related classes and interfaces.
*/
namespace chibios_fatfs {
/*------------------------------------------------------------------------*
* chibios_fatfs::FatFSWrapper::FatFSServerThread *
*------------------------------------------------------------------------*/
FatFSWrapper::FatFSServerThread::FatFSServerThread(::BaseBlockDevice *blkdev) :
BaseStaticThread<FATFS_THREAD_STACK_SIZE>(),
blkdev(blkdev) {
start(FATFS_THREAD_PRIORITY);
}
FatFSWrapper::FatFSServerThread::~FatFSServerThread() {
sendMessage(MSG_TERMINATE);
wait();
}
msg_t FatFSWrapper::FatFSServerThread::main() {
msg_t sts;
/* 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);
}
}
/*------------------------------------------------------------------------*
* chibios_fatfs::FatFSWrapper *
*------------------------------------------------------------------------*/
FatFSWrapper::FatFSWrapper(::BaseBlockDevice *blkdev) : server(blkdev) {
server.start(FATFS_THREAD_PRIORITY);
}
FatFSWrapper::~FatFSWrapper() {
server.~FatFSServerThread();
}
}
/** @} */
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