masayuki shindo / Mbed 2 deprecated LCD1289Serial

LCD1289Serial_Ethenet

Dependencies:   EthernetInterface FatFileSystemCpp SDFileSystem mbed-rtos mbed

FatFileSystemCpp/FATFileSystem.cpp@0:a5367e4d8591, 2012-11-07 (annotated)

Committer:
shindo
Date:
Wed Nov 07 06:42:34 2012 +0000
Revision:
0:a5367e4d8591
LCD1289Serial_Ethenet

Who changed what in which revision?

UserRevisionLine numberNew contents of line
shindo 0:a5367e4d8591 1 /* mbed Microcontroller Library - FATFileSystem
shindo 0:a5367e4d8591 2 * Copyright (c) 2008, sford
shindo 0:a5367e4d8591 3 */
shindo 0:a5367e4d8591 4
shindo 0:a5367e4d8591 5 #include "FATFileSystem.h"
shindo 0:a5367e4d8591 6
shindo 0:a5367e4d8591 7 #include "mbed.h"
shindo 0:a5367e4d8591 8
shindo 0:a5367e4d8591 9 #include "FileSystemLike.h"
shindo 0:a5367e4d8591 10 #include "FATFileHandle.h"
shindo 0:a5367e4d8591 11 #include "FATDirHandle.h"
shindo 0:a5367e4d8591 12 #include "ff.h"
shindo 0:a5367e4d8591 13 //#include "Debug.h"
shindo 0:a5367e4d8591 14 #include <stdio.h>
shindo 0:a5367e4d8591 15 #include <stdlib.h>
shindo 0:a5367e4d8591 16
shindo 0:a5367e4d8591 17 DWORD get_fattime (void) {
shindo 0:a5367e4d8591 18 return 999;
shindo 0:a5367e4d8591 19 }
shindo 0:a5367e4d8591 20
shindo 0:a5367e4d8591 21 namespace mbed {
shindo 0:a5367e4d8591 22
shindo 0:a5367e4d8591 23 #if FFSDEBUG_ENABLED
shindo 0:a5367e4d8591 24 static const char *FR_ERRORS[] = {
shindo 0:a5367e4d8591 25 "FR_OK = 0",
shindo 0:a5367e4d8591 26 "FR_NOT_READY",
shindo 0:a5367e4d8591 27 "FR_NO_FILE",
shindo 0:a5367e4d8591 28 "FR_NO_PATH",
shindo 0:a5367e4d8591 29 "FR_INVALID_NAME",
shindo 0:a5367e4d8591 30 "FR_INVALID_DRIVE",
shindo 0:a5367e4d8591 31 "FR_DENIED",
shindo 0:a5367e4d8591 32 "FR_EXIST",
shindo 0:a5367e4d8591 33 "FR_RW_ERROR",
shindo 0:a5367e4d8591 34 "FR_WRITE_PROTECTED",
shindo 0:a5367e4d8591 35 "FR_NOT_ENABLED",
shindo 0:a5367e4d8591 36 "FR_NO_FILESYSTEM",
shindo 0:a5367e4d8591 37 "FR_INVALID_OBJECT",
shindo 0:a5367e4d8591 38 "FR_MKFS_ABORTED"
shindo 0:a5367e4d8591 39 };
shindo 0:a5367e4d8591 40 #endif
shindo 0:a5367e4d8591 41
shindo 0:a5367e4d8591 42 FATFileSystem *FATFileSystem::_ffs[_VOLUMES] = {0};
shindo 0:a5367e4d8591 43
shindo 0:a5367e4d8591 44 FATFileSystem::FATFileSystem(const char* n) : FileSystemLike(n) {
shindo 0:a5367e4d8591 45 FFSDEBUG("FATFileSystem(%s)\n", n);
shindo 0:a5367e4d8591 46 for(int i=0; i<_VOLUMES; i++) {
shindo 0:a5367e4d8591 47 if(_ffs[i] == 0) {
shindo 0:a5367e4d8591 48 _ffs[i] = this;
shindo 0:a5367e4d8591 49 _fsid = i;
shindo 0:a5367e4d8591 50 FFSDEBUG("Mounting [%s] on ffs drive [%d]\n", _name, _fsid);
shindo 0:a5367e4d8591 51 f_mount(i, &_fs);
shindo 0:a5367e4d8591 52 return;
shindo 0:a5367e4d8591 53 }
shindo 0:a5367e4d8591 54 }
shindo 0:a5367e4d8591 55 error("Couldn't create %s in FATFileSystem::FATFileSystem\n",n);
shindo 0:a5367e4d8591 56 }
shindo 0:a5367e4d8591 57
shindo 0:a5367e4d8591 58 FATFileSystem::~FATFileSystem() {
shindo 0:a5367e4d8591 59 for(int i=0; i<_VOLUMES; i++) {
shindo 0:a5367e4d8591 60 if(_ffs[i] == this) {
shindo 0:a5367e4d8591 61 _ffs[i] = 0;
shindo 0:a5367e4d8591 62 f_mount(i, NULL);
shindo 0:a5367e4d8591 63 }
shindo 0:a5367e4d8591 64 }
shindo 0:a5367e4d8591 65 }
shindo 0:a5367e4d8591 66
shindo 0:a5367e4d8591 67 FileHandle *FATFileSystem::open(const char* name, int flags) {
shindo 0:a5367e4d8591 68 FFSDEBUG("open(%s) on filesystem [%s], drv [%d]\n", name, _name, _fsid);
shindo 0:a5367e4d8591 69 char n[64];
shindo 0:a5367e4d8591 70 sprintf(n, "%d:/%s", _fsid, name);
shindo 0:a5367e4d8591 71
shindo 0:a5367e4d8591 72 /* POSIX flags -> FatFS open mode */
shindo 0:a5367e4d8591 73 BYTE openmode;
shindo 0:a5367e4d8591 74 if(flags & O_RDWR) {
shindo 0:a5367e4d8591 75 openmode = FA_READ|FA_WRITE;
shindo 0:a5367e4d8591 76 } else if(flags & O_WRONLY) {
shindo 0:a5367e4d8591 77 openmode = FA_WRITE;
shindo 0:a5367e4d8591 78 } else {
shindo 0:a5367e4d8591 79 openmode = FA_READ;
shindo 0:a5367e4d8591 80 }
shindo 0:a5367e4d8591 81 if(flags & O_CREAT) {
shindo 0:a5367e4d8591 82 if(flags & O_TRUNC) {
shindo 0:a5367e4d8591 83 openmode |= FA_CREATE_ALWAYS;
shindo 0:a5367e4d8591 84 } else {
shindo 0:a5367e4d8591 85 openmode |= FA_OPEN_ALWAYS;
shindo 0:a5367e4d8591 86 }
shindo 0:a5367e4d8591 87 }
shindo 0:a5367e4d8591 88
shindo 0:a5367e4d8591 89 FIL fh;
shindo 0:a5367e4d8591 90 FRESULT res = f_open(&fh, n, openmode);
shindo 0:a5367e4d8591 91 if(res) {
shindo 0:a5367e4d8591 92 FFSDEBUG("f_open('w') failed (%d, %s)\n", res, FR_ERRORS[res]);
shindo 0:a5367e4d8591 93 return NULL;
shindo 0:a5367e4d8591 94 }
shindo 0:a5367e4d8591 95 if(flags & O_APPEND) {
shindo 0:a5367e4d8591 96 f_lseek(&fh, fh.fsize);
shindo 0:a5367e4d8591 97 }
shindo 0:a5367e4d8591 98 return new FATFileHandle(fh);
shindo 0:a5367e4d8591 99 }
shindo 0:a5367e4d8591 100
shindo 0:a5367e4d8591 101 int FATFileSystem::remove(const char *filename) {
shindo 0:a5367e4d8591 102 FRESULT res = f_unlink(filename);
shindo 0:a5367e4d8591 103 if(res) {
shindo 0:a5367e4d8591 104 FFSDEBUG("f_unlink() failed (%d, %s)\n", res, FR_ERRORS[res]);
shindo 0:a5367e4d8591 105 return -1;
shindo 0:a5367e4d8591 106 }
shindo 0:a5367e4d8591 107 return 0;
shindo 0:a5367e4d8591 108 }
shindo 0:a5367e4d8591 109
shindo 0:a5367e4d8591 110 int FATFileSystem::format() {
shindo 0:a5367e4d8591 111 FFSDEBUG("format()\n");
shindo 0:a5367e4d8591 112 FRESULT res = f_mkfs(_fsid, 0, 512); // Logical drive number, Partitioning rule, Allocation unit size (bytes per cluster)
shindo 0:a5367e4d8591 113 if(res) {
shindo 0:a5367e4d8591 114 FFSDEBUG("f_mkfs() failed (%d, %s)\n", res, FR_ERRORS[res]);
shindo 0:a5367e4d8591 115 return -1;
shindo 0:a5367e4d8591 116 }
shindo 0:a5367e4d8591 117 return 0;
shindo 0:a5367e4d8591 118 }
shindo 0:a5367e4d8591 119
shindo 0:a5367e4d8591 120 DirHandle *FATFileSystem::opendir(const char *name) {
shindo 0:a5367e4d8591 121 FATFS_DIR dir;
shindo 0:a5367e4d8591 122 FRESULT res = f_opendir(&dir, name);
shindo 0:a5367e4d8591 123 if(res != 0) {
shindo 0:a5367e4d8591 124 return NULL;
shindo 0:a5367e4d8591 125 }
shindo 0:a5367e4d8591 126 return new FATDirHandle(dir);
shindo 0:a5367e4d8591 127 }
shindo 0:a5367e4d8591 128
shindo 0:a5367e4d8591 129 int FATFileSystem::mkdir(const char *name, mode_t mode) {
shindo 0:a5367e4d8591 130 FRESULT res = f_mkdir(name);
shindo 0:a5367e4d8591 131 return res == 0 ? 0 : -1;
shindo 0:a5367e4d8591 132 }
shindo 0:a5367e4d8591 133
shindo 0:a5367e4d8591 134 } // namespace mbed