Murat Kilivan / S25FL216K_FATFileSystem

Implementation of a LocalFileSystem using S25FL216K serial flash memory. Currently only 256kB available!

Dependencies:   FATFileSystem S25FL216K

Dependents:   S25FL216K_LocalFileSystem

Fork of S25FL216K_USBFileSystem by Murat Kilivan

FATFileSystem/FATFileHandle.cpp@5:c8918e47c566, 2014-12-23 (annotated)

Committer:
mkilivan
Date:
Tue Dec 23 21:36:32 2014 +0000
Revision:
5:c8918e47c566
initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mkilivan 5:c8918e47c566 1 /* mbed Microcontroller Library
mkilivan 5:c8918e47c566 2 * Copyright (c) 2006-2012 ARM Limited
mkilivan 5:c8918e47c566 3 *
mkilivan 5:c8918e47c566 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
mkilivan 5:c8918e47c566 5 * of this software and associated documentation files (the "Software"), to deal
mkilivan 5:c8918e47c566 6 * in the Software without restriction, including without limitation the rights
mkilivan 5:c8918e47c566 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
mkilivan 5:c8918e47c566 8 * copies of the Software, and to permit persons to whom the Software is
mkilivan 5:c8918e47c566 9 * furnished to do so, subject to the following conditions:
mkilivan 5:c8918e47c566 10 *
mkilivan 5:c8918e47c566 11 * The above copyright notice and this permission notice shall be included in
mkilivan 5:c8918e47c566 12 * all copies or substantial portions of the Software.
mkilivan 5:c8918e47c566 13 *
mkilivan 5:c8918e47c566 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
mkilivan 5:c8918e47c566 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
mkilivan 5:c8918e47c566 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
mkilivan 5:c8918e47c566 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
mkilivan 5:c8918e47c566 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
mkilivan 5:c8918e47c566 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
mkilivan 5:c8918e47c566 20 * SOFTWARE.
mkilivan 5:c8918e47c566 21 */
mkilivan 5:c8918e47c566 22 #include "ff.h"
mkilivan 5:c8918e47c566 23 #include "ffconf.h"
mkilivan 5:c8918e47c566 24 #include "mbed_debug.h"
mkilivan 5:c8918e47c566 25
mkilivan 5:c8918e47c566 26 #include "FATFileHandle.h"
mkilivan 5:c8918e47c566 27
mkilivan 5:c8918e47c566 28 FATFileHandle::FATFileHandle(FIL fh) {
mkilivan 5:c8918e47c566 29 _fh = fh;
mkilivan 5:c8918e47c566 30 }
mkilivan 5:c8918e47c566 31
mkilivan 5:c8918e47c566 32 int FATFileHandle::close() {
mkilivan 5:c8918e47c566 33 int retval = f_close(&_fh);
mkilivan 5:c8918e47c566 34 delete this;
mkilivan 5:c8918e47c566 35 return retval;
mkilivan 5:c8918e47c566 36 }
mkilivan 5:c8918e47c566 37
mkilivan 5:c8918e47c566 38 ssize_t FATFileHandle::write(const void* buffer, size_t length) {
mkilivan 5:c8918e47c566 39 UINT n;
mkilivan 5:c8918e47c566 40 FRESULT res = f_write(&_fh, buffer, length, &n);
mkilivan 5:c8918e47c566 41 if (res) {
mkilivan 5:c8918e47c566 42 debug_if(FFS_DBG, "f_write() failed: %d", res);
mkilivan 5:c8918e47c566 43 return -1;
mkilivan 5:c8918e47c566 44 }
mkilivan 5:c8918e47c566 45 return n;
mkilivan 5:c8918e47c566 46 }
mkilivan 5:c8918e47c566 47
mkilivan 5:c8918e47c566 48 ssize_t FATFileHandle::read(void* buffer, size_t length) {
mkilivan 5:c8918e47c566 49 debug_if(FFS_DBG, "read(%d)\n", length);
mkilivan 5:c8918e47c566 50 UINT n;
mkilivan 5:c8918e47c566 51 FRESULT res = f_read(&_fh, buffer, length, &n);
mkilivan 5:c8918e47c566 52 if (res) {
mkilivan 5:c8918e47c566 53 debug_if(FFS_DBG, "f_read() failed: %d\n", res);
mkilivan 5:c8918e47c566 54 return -1;
mkilivan 5:c8918e47c566 55 }
mkilivan 5:c8918e47c566 56 return n;
mkilivan 5:c8918e47c566 57 }
mkilivan 5:c8918e47c566 58
mkilivan 5:c8918e47c566 59 int FATFileHandle::isatty() {
mkilivan 5:c8918e47c566 60 return 0;
mkilivan 5:c8918e47c566 61 }
mkilivan 5:c8918e47c566 62
mkilivan 5:c8918e47c566 63 off_t FATFileHandle::lseek(off_t position, int whence) {
mkilivan 5:c8918e47c566 64 if (whence == SEEK_END) {
mkilivan 5:c8918e47c566 65 position += _fh.fsize;
mkilivan 5:c8918e47c566 66 } else if(whence==SEEK_CUR) {
mkilivan 5:c8918e47c566 67 position += _fh.fptr;
mkilivan 5:c8918e47c566 68 }
mkilivan 5:c8918e47c566 69 FRESULT res = f_lseek(&_fh, position);
mkilivan 5:c8918e47c566 70 if (res) {
mkilivan 5:c8918e47c566 71 debug_if(FFS_DBG, "lseek failed: %d\n", res);
mkilivan 5:c8918e47c566 72 return -1;
mkilivan 5:c8918e47c566 73 } else {
mkilivan 5:c8918e47c566 74 debug_if(FFS_DBG, "lseek OK, returning %i\n", _fh.fptr);
mkilivan 5:c8918e47c566 75 return _fh.fptr;
mkilivan 5:c8918e47c566 76 }
mkilivan 5:c8918e47c566 77 }
mkilivan 5:c8918e47c566 78
mkilivan 5:c8918e47c566 79 int FATFileHandle::fsync() {
mkilivan 5:c8918e47c566 80 FRESULT res = f_sync(&_fh);
mkilivan 5:c8918e47c566 81 if (res) {
mkilivan 5:c8918e47c566 82 debug_if(FFS_DBG, "f_sync() failed: %d\n", res);
mkilivan 5:c8918e47c566 83 return -1;
mkilivan 5:c8918e47c566 84 }
mkilivan 5:c8918e47c566 85 return 0;
mkilivan 5:c8918e47c566 86 }
mkilivan 5:c8918e47c566 87
mkilivan 5:c8918e47c566 88 off_t FATFileHandle::flen() {
mkilivan 5:c8918e47c566 89 return _fh.fsize;
mkilivan 5:c8918e47c566 90 }