Timóteo Mendes / Mbed 2 deprecated SD_read_write_copy

this one works ok

Dependencies:   mbed

Fork of Demo_NucleoF4xx_SD_Card by 不韋 呂

SDFileSystem/FATFileSystem/FATFileSystem.cpp@2:a27636d90999, 2016-12-01 (annotated)

Committer:
Timoteo
Date:
Thu Dec 01 14:13:54 2016 +0000
Revision:
2:a27636d90999
Parent:
0:08b4a59451e5 
mbed ok

Who changed what in which revision?

UserRevisionLine numberNew contents of line
MikamiUitOpen 0:08b4a59451e5 1 /* mbed Microcontroller Library
MikamiUitOpen 0:08b4a59451e5 2 * Copyright (c) 2006-2012 ARM Limited
MikamiUitOpen 0:08b4a59451e5 3 *
MikamiUitOpen 0:08b4a59451e5 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
MikamiUitOpen 0:08b4a59451e5 5 * of this software and associated documentation files (the "Software"), to deal
MikamiUitOpen 0:08b4a59451e5 6 * in the Software without restriction, including without limitation the rights
MikamiUitOpen 0:08b4a59451e5 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
MikamiUitOpen 0:08b4a59451e5 8 * copies of the Software, and to permit persons to whom the Software is
MikamiUitOpen 0:08b4a59451e5 9 * furnished to do so, subject to the following conditions:
MikamiUitOpen 0:08b4a59451e5 10 *
MikamiUitOpen 0:08b4a59451e5 11 * The above copyright notice and this permission notice shall be included in
MikamiUitOpen 0:08b4a59451e5 12 * all copies or substantial portions of the Software.
MikamiUitOpen 0:08b4a59451e5 13 *
MikamiUitOpen 0:08b4a59451e5 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
MikamiUitOpen 0:08b4a59451e5 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
MikamiUitOpen 0:08b4a59451e5 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
MikamiUitOpen 0:08b4a59451e5 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
MikamiUitOpen 0:08b4a59451e5 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
MikamiUitOpen 0:08b4a59451e5 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
MikamiUitOpen 0:08b4a59451e5 20 * SOFTWARE.
MikamiUitOpen 0:08b4a59451e5 21 */
MikamiUitOpen 0:08b4a59451e5 22 #include "mbed.h"
MikamiUitOpen 0:08b4a59451e5 23
MikamiUitOpen 0:08b4a59451e5 24 #include "ffconf.h"
MikamiUitOpen 0:08b4a59451e5 25 #include "mbed_debug.h"
MikamiUitOpen 0:08b4a59451e5 26
MikamiUitOpen 0:08b4a59451e5 27 #include "FATFileSystem.h"
MikamiUitOpen 0:08b4a59451e5 28 #include "FATFileHandle.h"
MikamiUitOpen 0:08b4a59451e5 29 #include "FATDirHandle.h"
MikamiUitOpen 0:08b4a59451e5 30
MikamiUitOpen 0:08b4a59451e5 31 DWORD get_fattime(void) {
MikamiUitOpen 0:08b4a59451e5 32 time_t rawtime;
MikamiUitOpen 0:08b4a59451e5 33 time(&rawtime);
MikamiUitOpen 0:08b4a59451e5 34 struct tm *ptm = localtime(&rawtime);
MikamiUitOpen 0:08b4a59451e5 35 return (DWORD)(ptm->tm_year - 80) << 25
MikamiUitOpen 0:08b4a59451e5 36 | (DWORD)(ptm->tm_mon + 1 ) << 21
MikamiUitOpen 0:08b4a59451e5 37 | (DWORD)(ptm->tm_mday ) << 16
MikamiUitOpen 0:08b4a59451e5 38 | (DWORD)(ptm->tm_hour ) << 11
MikamiUitOpen 0:08b4a59451e5 39 | (DWORD)(ptm->tm_min ) << 5
MikamiUitOpen 0:08b4a59451e5 40 | (DWORD)(ptm->tm_sec/2 );
MikamiUitOpen 0:08b4a59451e5 41 }
MikamiUitOpen 0:08b4a59451e5 42
MikamiUitOpen 0:08b4a59451e5 43 FATFileSystem *FATFileSystem::_ffs[_VOLUMES] = {0};
MikamiUitOpen 0:08b4a59451e5 44
MikamiUitOpen 0:08b4a59451e5 45 FATFileSystem::FATFileSystem(const char* n) : FileSystemLike(n) {
MikamiUitOpen 0:08b4a59451e5 46 debug_if(FFS_DBG, "FATFileSystem(%s)\n", n);
MikamiUitOpen 0:08b4a59451e5 47 for(int i=0; i<_VOLUMES; i++) {
MikamiUitOpen 0:08b4a59451e5 48 if(_ffs[i] == 0) {
MikamiUitOpen 0:08b4a59451e5 49 _ffs[i] = this;
MikamiUitOpen 0:08b4a59451e5 50 _fsid = i;
MikamiUitOpen 0:08b4a59451e5 51 debug_if(FFS_DBG, "Mounting [%s] on ffs drive [%d]\n", _name, _fsid);
MikamiUitOpen 0:08b4a59451e5 52 f_mount(i, &_fs);
MikamiUitOpen 0:08b4a59451e5 53 return;
MikamiUitOpen 0:08b4a59451e5 54 }
MikamiUitOpen 0:08b4a59451e5 55 }
MikamiUitOpen 0:08b4a59451e5 56 error("Couldn't create %s in FATFileSystem::FATFileSystem\n", n);
MikamiUitOpen 0:08b4a59451e5 57 }
MikamiUitOpen 0:08b4a59451e5 58
MikamiUitOpen 0:08b4a59451e5 59 FATFileSystem::~FATFileSystem() {
MikamiUitOpen 0:08b4a59451e5 60 for (int i=0; i<_VOLUMES; i++) {
MikamiUitOpen 0:08b4a59451e5 61 if (_ffs[i] == this) {
MikamiUitOpen 0:08b4a59451e5 62 _ffs[i] = 0;
MikamiUitOpen 0:08b4a59451e5 63 f_mount(i, NULL);
MikamiUitOpen 0:08b4a59451e5 64 }
MikamiUitOpen 0:08b4a59451e5 65 }
MikamiUitOpen 0:08b4a59451e5 66 }
MikamiUitOpen 0:08b4a59451e5 67
MikamiUitOpen 0:08b4a59451e5 68 FileHandle *FATFileSystem::open(const char* name, int flags) {
MikamiUitOpen 0:08b4a59451e5 69 debug_if(FFS_DBG, "open(%s) on filesystem [%s], drv [%d]\n", name, _name, _fsid);
MikamiUitOpen 0:08b4a59451e5 70 char n[64];
MikamiUitOpen 0:08b4a59451e5 71 sprintf(n, "%d:/%s", _fsid, name);
MikamiUitOpen 0:08b4a59451e5 72
MikamiUitOpen 0:08b4a59451e5 73 /* POSIX flags -> FatFS open mode */
MikamiUitOpen 0:08b4a59451e5 74 BYTE openmode;
MikamiUitOpen 0:08b4a59451e5 75 if (flags & O_RDWR) {
MikamiUitOpen 0:08b4a59451e5 76 openmode = FA_READ|FA_WRITE;
MikamiUitOpen 0:08b4a59451e5 77 } else if(flags & O_WRONLY) {
MikamiUitOpen 0:08b4a59451e5 78 openmode = FA_WRITE;
MikamiUitOpen 0:08b4a59451e5 79 } else {
MikamiUitOpen 0:08b4a59451e5 80 openmode = FA_READ;
MikamiUitOpen 0:08b4a59451e5 81 }
MikamiUitOpen 0:08b4a59451e5 82 if(flags & O_CREAT) {
MikamiUitOpen 0:08b4a59451e5 83 if(flags & O_TRUNC) {
MikamiUitOpen 0:08b4a59451e5 84 openmode |= FA_CREATE_ALWAYS;
MikamiUitOpen 0:08b4a59451e5 85 } else {
MikamiUitOpen 0:08b4a59451e5 86 openmode |= FA_OPEN_ALWAYS;
MikamiUitOpen 0:08b4a59451e5 87 }
MikamiUitOpen 0:08b4a59451e5 88 }
MikamiUitOpen 0:08b4a59451e5 89
MikamiUitOpen 0:08b4a59451e5 90 FIL fh;
MikamiUitOpen 0:08b4a59451e5 91 FRESULT res = f_open(&fh, n, openmode);
MikamiUitOpen 0:08b4a59451e5 92 if (res) {
MikamiUitOpen 0:08b4a59451e5 93 debug_if(FFS_DBG, "f_open('w') failed: %d\n", res);
MikamiUitOpen 0:08b4a59451e5 94 return NULL;
MikamiUitOpen 0:08b4a59451e5 95 }
MikamiUitOpen 0:08b4a59451e5 96 if (flags & O_APPEND) {
MikamiUitOpen 0:08b4a59451e5 97 f_lseek(&fh, fh.fsize);
MikamiUitOpen 0:08b4a59451e5 98 }
MikamiUitOpen 0:08b4a59451e5 99 return new FATFileHandle(fh);
MikamiUitOpen 0:08b4a59451e5 100 }
MikamiUitOpen 0:08b4a59451e5 101
MikamiUitOpen 0:08b4a59451e5 102 int FATFileSystem::remove(const char *filename) {
MikamiUitOpen 0:08b4a59451e5 103 FRESULT res = f_unlink(filename);
MikamiUitOpen 0:08b4a59451e5 104 if (res) {
MikamiUitOpen 0:08b4a59451e5 105 debug_if(FFS_DBG, "f_unlink() failed: %d\n", res);
MikamiUitOpen 0:08b4a59451e5 106 return -1;
MikamiUitOpen 0:08b4a59451e5 107 }
MikamiUitOpen 0:08b4a59451e5 108 return 0;
MikamiUitOpen 0:08b4a59451e5 109 }
MikamiUitOpen 0:08b4a59451e5 110
MikamiUitOpen 0:08b4a59451e5 111 int FATFileSystem::format() {
MikamiUitOpen 0:08b4a59451e5 112 FRESULT res = f_mkfs(_fsid, 0, 512); // Logical drive number, Partitioning rule, Allocation unit size (bytes per cluster)
MikamiUitOpen 0:08b4a59451e5 113 if (res) {
MikamiUitOpen 0:08b4a59451e5 114 debug_if(FFS_DBG, "f_mkfs() failed: %d\n", res);
MikamiUitOpen 0:08b4a59451e5 115 return -1;
MikamiUitOpen 0:08b4a59451e5 116 }
MikamiUitOpen 0:08b4a59451e5 117 return 0;
MikamiUitOpen 0:08b4a59451e5 118 }
MikamiUitOpen 0:08b4a59451e5 119
MikamiUitOpen 0:08b4a59451e5 120 DirHandle *FATFileSystem::opendir(const char *name) {
MikamiUitOpen 0:08b4a59451e5 121 FATFS_DIR dir;
MikamiUitOpen 0:08b4a59451e5 122 FRESULT res = f_opendir(&dir, name);
MikamiUitOpen 0:08b4a59451e5 123 if (res != 0) {
MikamiUitOpen 0:08b4a59451e5 124 return NULL;
MikamiUitOpen 0:08b4a59451e5 125 }
MikamiUitOpen 0:08b4a59451e5 126 return new FATDirHandle(dir);
MikamiUitOpen 0:08b4a59451e5 127 }
MikamiUitOpen 0:08b4a59451e5 128
MikamiUitOpen 0:08b4a59451e5 129 int FATFileSystem::mkdir(const char *name, mode_t mode) {
MikamiUitOpen 0:08b4a59451e5 130 FRESULT res = f_mkdir(name);
MikamiUitOpen 0:08b4a59451e5 131 return res == 0 ? 0 : -1;
MikamiUitOpen 0:08b4a59451e5 132 }