Simon Ford / Mbed 2 deprecated fat

Dependencies:   mbed

FATFileHandle.cpp@1:208803a150b2, 2012-01-12 (annotated)

Committer:
simon
Date:
Thu Jan 12 12:59:33 2012 +0000
Revision:
1:208803a150b2
Parent:
0:560a6744936c 
fix on line 61 of diskio, sector -> s

Who changed what in which revision?

UserRevisionLine numberNew contents of line
simon 0:560a6744936c 1 /* mbed Microcontroller Library - FATFileHandle
simon 0:560a6744936c 2 * Copyright (c) 2008, sford
simon 0:560a6744936c 3 */
simon 0:560a6744936c 4
simon 0:560a6744936c 5 #include "FATFileHandle.h"
simon 0:560a6744936c 6
simon 0:560a6744936c 7 #include <stdio.h>
simon 0:560a6744936c 8 #include <stdlib.h>
simon 0:560a6744936c 9 #include "ff.h"
simon 0:560a6744936c 10 #include "FATFileSystem.h"
simon 0:560a6744936c 11
simon 0:560a6744936c 12 namespace mbed {
simon 0:560a6744936c 13
simon 0:560a6744936c 14 #if FFSDEBUG_ENABLED
simon 0:560a6744936c 15 static const char *FR_ERRORS[] = {
simon 0:560a6744936c 16 "FR_OK = 0",
simon 0:560a6744936c 17 "FR_NOT_READY",
simon 0:560a6744936c 18 "FR_NO_FILE",
simon 0:560a6744936c 19 "FR_NO_PATH",
simon 0:560a6744936c 20 "FR_INVALID_NAME",
simon 0:560a6744936c 21 "FR_INVALID_DRIVE",
simon 0:560a6744936c 22 "FR_DENIED",
simon 0:560a6744936c 23 "FR_EXIST",
simon 0:560a6744936c 24 "FR_RW_ERROR",
simon 0:560a6744936c 25 "FR_WRITE_PROTECTED",
simon 0:560a6744936c 26 "FR_NOT_ENABLED",
simon 0:560a6744936c 27 "FR_NO_FILESYSTEM",
simon 0:560a6744936c 28 "FR_INVALID_OBJECT",
simon 0:560a6744936c 29 "FR_MKFS_ABORTED"
simon 0:560a6744936c 30 };
simon 0:560a6744936c 31 #endif
simon 0:560a6744936c 32
simon 0:560a6744936c 33 FATFileHandle::FATFileHandle(FIL fh) {
simon 0:560a6744936c 34 _fh = fh;
simon 0:560a6744936c 35 }
simon 0:560a6744936c 36
simon 0:560a6744936c 37 int FATFileHandle::close() {
simon 0:560a6744936c 38 FFSDEBUG("close\n");
simon 0:560a6744936c 39 int retval = f_close(&_fh);
simon 0:560a6744936c 40 delete this;
simon 0:560a6744936c 41 return retval;
simon 0:560a6744936c 42 }
simon 0:560a6744936c 43
simon 0:560a6744936c 44 ssize_t FATFileHandle::write(const void* buffer, size_t length) {
simon 0:560a6744936c 45 FFSDEBUG("write(%d)\n", length);
simon 0:560a6744936c 46 UINT n;
simon 0:560a6744936c 47 FRESULT res = f_write(&_fh, buffer, length, &n);
simon 0:560a6744936c 48 if(res) {
simon 0:560a6744936c 49 FFSDEBUG("f_write() failed (%d, %s)", res, FR_ERRORS[res]);
simon 0:560a6744936c 50 return -1;
simon 0:560a6744936c 51 }
simon 0:560a6744936c 52 return n;
simon 0:560a6744936c 53 }
simon 0:560a6744936c 54
simon 0:560a6744936c 55 ssize_t FATFileHandle::read(void* buffer, size_t length) {
simon 0:560a6744936c 56 FFSDEBUG("read(%d)\n", length);
simon 0:560a6744936c 57 UINT n;
simon 0:560a6744936c 58 FRESULT res = f_read(&_fh, buffer, length, &n);
simon 0:560a6744936c 59 if(res) {
simon 0:560a6744936c 60 FFSDEBUG("f_read() failed (%d, %s)\n", res, FR_ERRORS[res]);
simon 0:560a6744936c 61 return -1;
simon 0:560a6744936c 62 }
simon 0:560a6744936c 63 return n;
simon 0:560a6744936c 64 }
simon 0:560a6744936c 65
simon 0:560a6744936c 66 int FATFileHandle::isatty() {
simon 0:560a6744936c 67 return 0;
simon 0:560a6744936c 68 }
simon 0:560a6744936c 69
simon 0:560a6744936c 70 off_t FATFileHandle::lseek(off_t position, int whence) {
simon 0:560a6744936c 71 FFSDEBUG("lseek(%i,%i)\n",position,whence);
simon 0:560a6744936c 72 if(whence == SEEK_END) {
simon 0:560a6744936c 73 position += _fh.fsize;
simon 0:560a6744936c 74 } else if(whence==SEEK_CUR) {
simon 0:560a6744936c 75 position += _fh.fptr;
simon 0:560a6744936c 76 }
simon 0:560a6744936c 77 FRESULT res = f_lseek(&_fh, position);
simon 0:560a6744936c 78 if(res) {
simon 0:560a6744936c 79 FFSDEBUG("lseek failed (%d, %s)\n", res, FR_ERRORS[res]);
simon 0:560a6744936c 80 return -1;
simon 0:560a6744936c 81 } else {
simon 0:560a6744936c 82 FFSDEBUG("lseek OK, returning %i\n", _fh.fptr);
simon 0:560a6744936c 83 return _fh.fptr;
simon 0:560a6744936c 84 }
simon 0:560a6744936c 85 }
simon 0:560a6744936c 86
simon 0:560a6744936c 87 int FATFileHandle::fsync() {
simon 0:560a6744936c 88 FFSDEBUG("fsync()\n");
simon 0:560a6744936c 89 FRESULT res = f_sync(&_fh);
simon 0:560a6744936c 90 if (res) {
simon 0:560a6744936c 91 FFSDEBUG("f_sync() failed (%d, %s)\n", res, FR_ERRORS[res]);
simon 0:560a6744936c 92 return -1;
simon 0:560a6744936c 93 }
simon 0:560a6744936c 94 return 0;
simon 0:560a6744936c 95 }
simon 0:560a6744936c 96
simon 0:560a6744936c 97 off_t FATFileHandle::flen() {
simon 0:560a6744936c 98 FFSDEBUG("flen\n");
simon 0:560a6744936c 99 return _fh.fsize;
simon 0:560a6744936c 100 }
simon 0:560a6744936c 101
simon 0:560a6744936c 102 } // namespace mbed