A re-written SDFileSystem library with improved compatibility, CRC support, and card removal/replacement support.

Dependencies:   FATFileSystem

Dependents:   xadow_m0_SD_Hello roam_v1 roam_v2 Polytech_tours ... more

Revision:
14:02835aff8504
Parent:
13:635147efa748
Child:
15:c9e938f6934f
--- a/FATFileSystem/FATFileSystem.cpp	Mon Aug 18 15:09:52 2014 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,144 +0,0 @@
-/* mbed Microcontroller Library
- * Copyright (c) 2006-2012 ARM Limited
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-#include "mbed.h"
-
-#include "ffconf.h"
-#include "mbed_debug.h"
-
-#include "FATFileSystem.h"
-#include "FATFileHandle.h"
-#include "FATDirHandle.h"
-
-DWORD get_fattime(void) {
-    time_t rawtime;
-    time(&rawtime);
-    struct tm *ptm = localtime(&rawtime);
-    return (DWORD)(ptm->tm_year - 80) << 25
-         | (DWORD)(ptm->tm_mon + 1  ) << 21
-         | (DWORD)(ptm->tm_mday     ) << 16
-         | (DWORD)(ptm->tm_hour     ) << 11
-         | (DWORD)(ptm->tm_min      ) << 5
-         | (DWORD)(ptm->tm_sec/2    );
-}
-
-FATFileSystem *FATFileSystem::_ffs[_VOLUMES] = {0};
-
-FATFileSystem::FATFileSystem(const char* n) : FileSystemLike(n) {
-    debug_if(FFS_DBG, "FATFileSystem(%s)\n", n);
-    for(int i=0; i<_VOLUMES; i++) {
-        if(_ffs[i] == 0) {
-            _ffs[i] = this;
-            _fsid = i;
-            debug_if(FFS_DBG, "Mounting [%s] on ffs drive [%d]\n", _name, _fsid);
-            f_mount(i, &_fs);
-            return;
-        }
-    }
-    error("Couldn't create %s in FATFileSystem::FATFileSystem\n", n);
-}
-
-FATFileSystem::~FATFileSystem() {
-    for (int i=0; i<_VOLUMES; i++) {
-        if (_ffs[i] == this) {
-            _ffs[i] = 0;
-            f_mount(i, NULL);
-        }
-    }
-}
-
-FileHandle *FATFileSystem::open(const char* name, int flags) {
-    debug_if(FFS_DBG, "open(%s) on filesystem [%s], drv [%d]\n", name, _name, _fsid);
-    char n[64];
-    sprintf(n, "%d:/%s", _fsid, name);
-    
-    /* POSIX flags -> FatFS open mode */
-    BYTE openmode;
-    if (flags & O_RDWR) {
-        openmode = FA_READ|FA_WRITE;
-    } else if(flags & O_WRONLY) {
-        openmode = FA_WRITE;
-    } else {
-        openmode = FA_READ;
-    }
-    if(flags & O_CREAT) {
-        if(flags & O_TRUNC) {
-            openmode |= FA_CREATE_ALWAYS;
-        } else {
-            openmode |= FA_OPEN_ALWAYS;
-        }
-    }
-    
-    FIL fh;
-    FRESULT res = f_open(&fh, n, openmode);
-    if (res) { 
-        debug_if(FFS_DBG, "f_open('w') failed: %d\n", res);
-        return NULL;
-    }
-    if (flags & O_APPEND) {
-        f_lseek(&fh, fh.fsize);
-    }
-    return new FATFileHandle(fh);
-}
-    
-int FATFileSystem::remove(const char *filename) {
-    FRESULT res = f_unlink(filename);
-    if (res) { 
-        debug_if(FFS_DBG, "f_unlink() failed: %d\n", res);
-        return -1;
-    }
-    return 0;
-}
-
-int FATFileSystem::format() {
-    FRESULT res = f_mkfs(_fsid, 0, 512); // Logical drive number, Partitioning rule, Allocation unit size (bytes per cluster)
-    if (res) {
-        debug_if(FFS_DBG, "f_mkfs() failed: %d\n", res);
-        return -1;
-    }
-    return 0;
-}
-
-DirHandle *FATFileSystem::opendir(const char *name) {
-    FATFS_DIR dir;
-    FRESULT res = f_opendir(&dir, name);
-    if (res != 0) {
-        return NULL;
-    }
-    return new FATDirHandle(dir);
-}
-
-int FATFileSystem::mkdir(const char *name, mode_t mode) {
-    FRESULT res = f_mkdir(name);
-    return res == 0 ? 0 : -1;
-}
-
-int FATFileSystem::mount() {
-    FRESULT res = f_mount(_fsid, &_fs);
-    return res == 0 ? 0 : -1;
-}
-
-int FATFileSystem::unmount() {
-    if (disk_sync())
-        return -1;
-    FRESULT res = f_mount(_fsid, NULL);
-    return res == 0 ? 0 : -1;
-}