SkyTEM BMAG / Mbed 2 deprecated BMAGThrRev

Bmag incl gps rettelse

Dependencies:   mbed WDT MODSERIAL BME280

USBHost/FATFileSystem/FATFileSystem.cpp@61:52a6d0ffd8e5, 2019-07-05 (annotated)

Committer:
gert_lauritsen
Date:
Fri Jul 05 12:55:53 2019 +0000
Branch:
MbedBMAGThrRev
Revision:
61:52a6d0ffd8e5
dato rettel og ID i file lagt ind i version 5

Who changed what in which revision?

UserRevisionLine numberNew contents of line
gert_lauritsen 61:52a6d0ffd8e5 1 /* mbed Microcontroller Library
gert_lauritsen 61:52a6d0ffd8e5 2 * Copyright (c) 2006-2012 ARM Limited
gert_lauritsen 61:52a6d0ffd8e5 3 *
gert_lauritsen 61:52a6d0ffd8e5 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
gert_lauritsen 61:52a6d0ffd8e5 5 * of this software and associated documentation files (the "Software"), to deal
gert_lauritsen 61:52a6d0ffd8e5 6 * in the Software without restriction, including without limitation the rights
gert_lauritsen 61:52a6d0ffd8e5 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
gert_lauritsen 61:52a6d0ffd8e5 8 * copies of the Software, and to permit persons to whom the Software is
gert_lauritsen 61:52a6d0ffd8e5 9 * furnished to do so, subject to the following conditions:
gert_lauritsen 61:52a6d0ffd8e5 10 *
gert_lauritsen 61:52a6d0ffd8e5 11 * The above copyright notice and this permission notice shall be included in
gert_lauritsen 61:52a6d0ffd8e5 12 * all copies or substantial portions of the Software.
gert_lauritsen 61:52a6d0ffd8e5 13 *
gert_lauritsen 61:52a6d0ffd8e5 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
gert_lauritsen 61:52a6d0ffd8e5 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
gert_lauritsen 61:52a6d0ffd8e5 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
gert_lauritsen 61:52a6d0ffd8e5 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
gert_lauritsen 61:52a6d0ffd8e5 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
gert_lauritsen 61:52a6d0ffd8e5 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
gert_lauritsen 61:52a6d0ffd8e5 20 * SOFTWARE.
gert_lauritsen 61:52a6d0ffd8e5 21 */
gert_lauritsen 61:52a6d0ffd8e5 22 #include "mbed.h"
gert_lauritsen 61:52a6d0ffd8e5 23
gert_lauritsen 61:52a6d0ffd8e5 24 #include "ffconf.h"
gert_lauritsen 61:52a6d0ffd8e5 25 #include "mbed_debug.h"
gert_lauritsen 61:52a6d0ffd8e5 26
gert_lauritsen 61:52a6d0ffd8e5 27 #include "FATFileSystem.h"
gert_lauritsen 61:52a6d0ffd8e5 28 #include "FATFileHandle.h"
gert_lauritsen 61:52a6d0ffd8e5 29 #include "FATDirHandle.h"
gert_lauritsen 61:52a6d0ffd8e5 30
gert_lauritsen 61:52a6d0ffd8e5 31 DWORD get_fattime(void) {
gert_lauritsen 61:52a6d0ffd8e5 32 time_t rawtime;
gert_lauritsen 61:52a6d0ffd8e5 33 time(&rawtime);
gert_lauritsen 61:52a6d0ffd8e5 34 struct tm *ptm = localtime(&rawtime);
gert_lauritsen 61:52a6d0ffd8e5 35 return (DWORD)(ptm->tm_year - 80) << 25
gert_lauritsen 61:52a6d0ffd8e5 36 | (DWORD)(ptm->tm_mon + 1 ) << 21
gert_lauritsen 61:52a6d0ffd8e5 37 | (DWORD)(ptm->tm_mday ) << 16
gert_lauritsen 61:52a6d0ffd8e5 38 | (DWORD)(ptm->tm_hour ) << 11
gert_lauritsen 61:52a6d0ffd8e5 39 | (DWORD)(ptm->tm_min ) << 5
gert_lauritsen 61:52a6d0ffd8e5 40 | (DWORD)(ptm->tm_sec/2 );
gert_lauritsen 61:52a6d0ffd8e5 41 }
gert_lauritsen 61:52a6d0ffd8e5 42
gert_lauritsen 61:52a6d0ffd8e5 43 FATFileSystem *FATFileSystem::_ffs[_VOLUMES] = {0};
gert_lauritsen 61:52a6d0ffd8e5 44
gert_lauritsen 61:52a6d0ffd8e5 45 FATFileSystem::FATFileSystem(const char* n) : FileSystemLike(n) {
gert_lauritsen 61:52a6d0ffd8e5 46 debug_if(FFS_DBG, "FATFileSystem(%s)\n", n);
gert_lauritsen 61:52a6d0ffd8e5 47 for(int i=0; i<_VOLUMES; i++) {
gert_lauritsen 61:52a6d0ffd8e5 48 if(_ffs[i] == 0) {
gert_lauritsen 61:52a6d0ffd8e5 49 _ffs[i] = this;
gert_lauritsen 61:52a6d0ffd8e5 50 _fsid[0] = '0' + i;
gert_lauritsen 61:52a6d0ffd8e5 51 _fsid[1] = '\0';
gert_lauritsen 61:52a6d0ffd8e5 52 debug_if(FFS_DBG, "Mounting [%s] on ffs drive [%s]\n", getName(), _fsid);
gert_lauritsen 61:52a6d0ffd8e5 53 f_mount(&_fs, _fsid, 0);
gert_lauritsen 61:52a6d0ffd8e5 54 return;
gert_lauritsen 61:52a6d0ffd8e5 55 }
gert_lauritsen 61:52a6d0ffd8e5 56 }
gert_lauritsen 61:52a6d0ffd8e5 57 error("Couldn't create %s in FATFileSystem::FATFileSystem\n", n);
gert_lauritsen 61:52a6d0ffd8e5 58 }
gert_lauritsen 61:52a6d0ffd8e5 59
gert_lauritsen 61:52a6d0ffd8e5 60 FATFileSystem::~FATFileSystem() {
gert_lauritsen 61:52a6d0ffd8e5 61 for (int i=0; i<_VOLUMES; i++) {
gert_lauritsen 61:52a6d0ffd8e5 62 if (_ffs[i] == this) {
gert_lauritsen 61:52a6d0ffd8e5 63 _ffs[i] = 0;
gert_lauritsen 61:52a6d0ffd8e5 64 f_mount(NULL, _fsid, 0);
gert_lauritsen 61:52a6d0ffd8e5 65 }
gert_lauritsen 61:52a6d0ffd8e5 66 }
gert_lauritsen 61:52a6d0ffd8e5 67 }
gert_lauritsen 61:52a6d0ffd8e5 68
gert_lauritsen 61:52a6d0ffd8e5 69 FileHandle *FATFileSystem::open(const char* name, int flags) {
gert_lauritsen 61:52a6d0ffd8e5 70 debug_if(FFS_DBG, "open(%s) on filesystem [%s], drv [%s]\n", name, getName(), _fsid);
gert_lauritsen 61:52a6d0ffd8e5 71 char n[64];
gert_lauritsen 61:52a6d0ffd8e5 72 sprintf(n, "%s:/%s", _fsid, name);
gert_lauritsen 61:52a6d0ffd8e5 73
gert_lauritsen 61:52a6d0ffd8e5 74 /* POSIX flags -> FatFS open mode */
gert_lauritsen 61:52a6d0ffd8e5 75 BYTE openmode;
gert_lauritsen 61:52a6d0ffd8e5 76 if (flags & O_RDWR) {
gert_lauritsen 61:52a6d0ffd8e5 77 openmode = FA_READ|FA_WRITE;
gert_lauritsen 61:52a6d0ffd8e5 78 } else if(flags & O_WRONLY) {
gert_lauritsen 61:52a6d0ffd8e5 79 openmode = FA_WRITE;
gert_lauritsen 61:52a6d0ffd8e5 80 } else {
gert_lauritsen 61:52a6d0ffd8e5 81 openmode = FA_READ;
gert_lauritsen 61:52a6d0ffd8e5 82 }
gert_lauritsen 61:52a6d0ffd8e5 83 if(flags & O_CREAT) {
gert_lauritsen 61:52a6d0ffd8e5 84 if(flags & O_TRUNC) {
gert_lauritsen 61:52a6d0ffd8e5 85 openmode |= FA_CREATE_ALWAYS;
gert_lauritsen 61:52a6d0ffd8e5 86 } else {
gert_lauritsen 61:52a6d0ffd8e5 87 openmode |= FA_OPEN_ALWAYS;
gert_lauritsen 61:52a6d0ffd8e5 88 }
gert_lauritsen 61:52a6d0ffd8e5 89 }
gert_lauritsen 61:52a6d0ffd8e5 90
gert_lauritsen 61:52a6d0ffd8e5 91 FIL fh;
gert_lauritsen 61:52a6d0ffd8e5 92 FRESULT res = f_open(&fh, n, openmode);
gert_lauritsen 61:52a6d0ffd8e5 93 if (res) {
gert_lauritsen 61:52a6d0ffd8e5 94 debug_if(FFS_DBG, "f_open('w') failed: %d\n", res);
gert_lauritsen 61:52a6d0ffd8e5 95 return NULL;
gert_lauritsen 61:52a6d0ffd8e5 96 }
gert_lauritsen 61:52a6d0ffd8e5 97 if (flags & O_APPEND) {
gert_lauritsen 61:52a6d0ffd8e5 98 f_lseek(&fh, fh.fsize);
gert_lauritsen 61:52a6d0ffd8e5 99 }
gert_lauritsen 61:52a6d0ffd8e5 100 return new FATFileHandle(fh);
gert_lauritsen 61:52a6d0ffd8e5 101 }
gert_lauritsen 61:52a6d0ffd8e5 102
gert_lauritsen 61:52a6d0ffd8e5 103 int FATFileSystem::remove(const char *filename) {
gert_lauritsen 61:52a6d0ffd8e5 104 FRESULT res = f_unlink(filename);
gert_lauritsen 61:52a6d0ffd8e5 105 if (res) {
gert_lauritsen 61:52a6d0ffd8e5 106 debug_if(FFS_DBG, "f_unlink() failed: %d\n", res);
gert_lauritsen 61:52a6d0ffd8e5 107 return -1;
gert_lauritsen 61:52a6d0ffd8e5 108 }
gert_lauritsen 61:52a6d0ffd8e5 109 return 0;
gert_lauritsen 61:52a6d0ffd8e5 110 }
gert_lauritsen 61:52a6d0ffd8e5 111
gert_lauritsen 61:52a6d0ffd8e5 112 int FATFileSystem::rename(const char *oldname, const char *newname) {
gert_lauritsen 61:52a6d0ffd8e5 113 FRESULT res = f_rename(oldname, newname);
gert_lauritsen 61:52a6d0ffd8e5 114 if (res) {
gert_lauritsen 61:52a6d0ffd8e5 115 debug_if(FFS_DBG, "f_rename() failed: %d\n", res);
gert_lauritsen 61:52a6d0ffd8e5 116 return -1;
gert_lauritsen 61:52a6d0ffd8e5 117 }
gert_lauritsen 61:52a6d0ffd8e5 118 return 0;
gert_lauritsen 61:52a6d0ffd8e5 119 }
gert_lauritsen 61:52a6d0ffd8e5 120
gert_lauritsen 61:52a6d0ffd8e5 121 int FATFileSystem::format() {
gert_lauritsen 61:52a6d0ffd8e5 122 FRESULT res = f_mkfs(_fsid, 0, 512); // Logical drive number, Partitioning rule, Allocation unit size (bytes per cluster)
gert_lauritsen 61:52a6d0ffd8e5 123 if (res) {
gert_lauritsen 61:52a6d0ffd8e5 124 debug_if(FFS_DBG, "f_mkfs() failed: %d\n", res);
gert_lauritsen 61:52a6d0ffd8e5 125 return -1;
gert_lauritsen 61:52a6d0ffd8e5 126 }
gert_lauritsen 61:52a6d0ffd8e5 127 return 0;
gert_lauritsen 61:52a6d0ffd8e5 128 }
gert_lauritsen 61:52a6d0ffd8e5 129
gert_lauritsen 61:52a6d0ffd8e5 130 DirHandle *FATFileSystem::opendir(const char *name) {
gert_lauritsen 61:52a6d0ffd8e5 131 FATFS_DIR dir;
gert_lauritsen 61:52a6d0ffd8e5 132 FRESULT res = f_opendir(&dir, name);
gert_lauritsen 61:52a6d0ffd8e5 133 if (res != 0) {
gert_lauritsen 61:52a6d0ffd8e5 134 return NULL;
gert_lauritsen 61:52a6d0ffd8e5 135 }
gert_lauritsen 61:52a6d0ffd8e5 136 return new FATDirHandle(dir);
gert_lauritsen 61:52a6d0ffd8e5 137 }
gert_lauritsen 61:52a6d0ffd8e5 138
gert_lauritsen 61:52a6d0ffd8e5 139 int FATFileSystem::mkdir(const char *name, mode_t mode) {
gert_lauritsen 61:52a6d0ffd8e5 140 FRESULT res = f_mkdir(name);
gert_lauritsen 61:52a6d0ffd8e5 141 return res == 0 ? 0 : -1;
gert_lauritsen 61:52a6d0ffd8e5 142 }
gert_lauritsen 61:52a6d0ffd8e5 143
gert_lauritsen 61:52a6d0ffd8e5 144 int FATFileSystem::mount() {
gert_lauritsen 61:52a6d0ffd8e5 145 FRESULT res = f_mount(&_fs, _fsid, 1);
gert_lauritsen 61:52a6d0ffd8e5 146 return res == 0 ? 0 : -1;
gert_lauritsen 61:52a6d0ffd8e5 147 }
gert_lauritsen 61:52a6d0ffd8e5 148
gert_lauritsen 61:52a6d0ffd8e5 149 int FATFileSystem::unmount() {
gert_lauritsen 61:52a6d0ffd8e5 150 if (disk_sync())
gert_lauritsen 61:52a6d0ffd8e5 151 return -1;
gert_lauritsen 61:52a6d0ffd8e5 152 FRESULT res = f_mount(NULL, _fsid, 0);
gert_lauritsen 61:52a6d0ffd8e5 153 return res == 0 ? 0 : -1;
gert_lauritsen 61:52a6d0ffd8e5 154 }