SkyTEM BMAG / Mbed 2 deprecated BMAGThrRev

Bmag incl gps rettelse

Dependencies:   mbed WDT MODSERIAL BME280

USBHost/FATFileSystem/FATFileSystem.cpp@56:df9052e3808c, 2019-06-20 (annotated)

Committer:
gert_lauritsen
Date:
Thu Jun 20 07:13:18 2019 +0000
Revision:
56:df9052e3808c
change date stamp from gps, reads serialnumb from file.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
gert_lauritsen 56:df9052e3808c 1 /* mbed Microcontroller Library
gert_lauritsen 56:df9052e3808c 2 * Copyright (c) 2006-2012 ARM Limited
gert_lauritsen 56:df9052e3808c 3 *
gert_lauritsen 56:df9052e3808c 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
gert_lauritsen 56:df9052e3808c 5 * of this software and associated documentation files (the "Software"), to deal
gert_lauritsen 56:df9052e3808c 6 * in the Software without restriction, including without limitation the rights
gert_lauritsen 56:df9052e3808c 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
gert_lauritsen 56:df9052e3808c 8 * copies of the Software, and to permit persons to whom the Software is
gert_lauritsen 56:df9052e3808c 9 * furnished to do so, subject to the following conditions:
gert_lauritsen 56:df9052e3808c 10 *
gert_lauritsen 56:df9052e3808c 11 * The above copyright notice and this permission notice shall be included in
gert_lauritsen 56:df9052e3808c 12 * all copies or substantial portions of the Software.
gert_lauritsen 56:df9052e3808c 13 *
gert_lauritsen 56:df9052e3808c 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
gert_lauritsen 56:df9052e3808c 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
gert_lauritsen 56:df9052e3808c 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
gert_lauritsen 56:df9052e3808c 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
gert_lauritsen 56:df9052e3808c 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
gert_lauritsen 56:df9052e3808c 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
gert_lauritsen 56:df9052e3808c 20 * SOFTWARE.
gert_lauritsen 56:df9052e3808c 21 */
gert_lauritsen 56:df9052e3808c 22 #include "mbed.h"
gert_lauritsen 56:df9052e3808c 23
gert_lauritsen 56:df9052e3808c 24 #include "ffconf.h"
gert_lauritsen 56:df9052e3808c 25 #include "mbed_debug.h"
gert_lauritsen 56:df9052e3808c 26
gert_lauritsen 56:df9052e3808c 27 #include "FATFileSystem.h"
gert_lauritsen 56:df9052e3808c 28 #include "FATFileHandle.h"
gert_lauritsen 56:df9052e3808c 29 #include "FATDirHandle.h"
gert_lauritsen 56:df9052e3808c 30
gert_lauritsen 56:df9052e3808c 31 DWORD get_fattime(void) {
gert_lauritsen 56:df9052e3808c 32 time_t rawtime;
gert_lauritsen 56:df9052e3808c 33 time(&rawtime);
gert_lauritsen 56:df9052e3808c 34 struct tm *ptm = localtime(&rawtime);
gert_lauritsen 56:df9052e3808c 35 return (DWORD)(ptm->tm_year - 80) << 25
gert_lauritsen 56:df9052e3808c 36 | (DWORD)(ptm->tm_mon + 1 ) << 21
gert_lauritsen 56:df9052e3808c 37 | (DWORD)(ptm->tm_mday ) << 16
gert_lauritsen 56:df9052e3808c 38 | (DWORD)(ptm->tm_hour ) << 11
gert_lauritsen 56:df9052e3808c 39 | (DWORD)(ptm->tm_min ) << 5
gert_lauritsen 56:df9052e3808c 40 | (DWORD)(ptm->tm_sec/2 );
gert_lauritsen 56:df9052e3808c 41 }
gert_lauritsen 56:df9052e3808c 42
gert_lauritsen 56:df9052e3808c 43 FATFileSystem *FATFileSystem::_ffs[_VOLUMES] = {0};
gert_lauritsen 56:df9052e3808c 44
gert_lauritsen 56:df9052e3808c 45 FATFileSystem::FATFileSystem(const char* n) : FileSystemLike(n) {
gert_lauritsen 56:df9052e3808c 46 debug_if(FFS_DBG, "FATFileSystem(%s)\n", n);
gert_lauritsen 56:df9052e3808c 47 for(int i=0; i<_VOLUMES; i++) {
gert_lauritsen 56:df9052e3808c 48 if(_ffs[i] == 0) {
gert_lauritsen 56:df9052e3808c 49 _ffs[i] = this;
gert_lauritsen 56:df9052e3808c 50 _fsid[0] = '0' + i;
gert_lauritsen 56:df9052e3808c 51 _fsid[1] = '\0';
gert_lauritsen 56:df9052e3808c 52 debug_if(FFS_DBG, "Mounting [%s] on ffs drive [%s]\n", getName(), _fsid);
gert_lauritsen 56:df9052e3808c 53 f_mount(&_fs, _fsid, 0);
gert_lauritsen 56:df9052e3808c 54 return;
gert_lauritsen 56:df9052e3808c 55 }
gert_lauritsen 56:df9052e3808c 56 }
gert_lauritsen 56:df9052e3808c 57 error("Couldn't create %s in FATFileSystem::FATFileSystem\n", n);
gert_lauritsen 56:df9052e3808c 58 }
gert_lauritsen 56:df9052e3808c 59
gert_lauritsen 56:df9052e3808c 60 FATFileSystem::~FATFileSystem() {
gert_lauritsen 56:df9052e3808c 61 for (int i=0; i<_VOLUMES; i++) {
gert_lauritsen 56:df9052e3808c 62 if (_ffs[i] == this) {
gert_lauritsen 56:df9052e3808c 63 _ffs[i] = 0;
gert_lauritsen 56:df9052e3808c 64 f_mount(NULL, _fsid, 0);
gert_lauritsen 56:df9052e3808c 65 }
gert_lauritsen 56:df9052e3808c 66 }
gert_lauritsen 56:df9052e3808c 67 }
gert_lauritsen 56:df9052e3808c 68
gert_lauritsen 56:df9052e3808c 69 FileHandle *FATFileSystem::open(const char* name, int flags) {
gert_lauritsen 56:df9052e3808c 70 debug_if(FFS_DBG, "open(%s) on filesystem [%s], drv [%s]\n", name, getName(), _fsid);
gert_lauritsen 56:df9052e3808c 71 char n[64];
gert_lauritsen 56:df9052e3808c 72 sprintf(n, "%s:/%s", _fsid, name);
gert_lauritsen 56:df9052e3808c 73
gert_lauritsen 56:df9052e3808c 74 /* POSIX flags -> FatFS open mode */
gert_lauritsen 56:df9052e3808c 75 BYTE openmode;
gert_lauritsen 56:df9052e3808c 76 if (flags & O_RDWR) {
gert_lauritsen 56:df9052e3808c 77 openmode = FA_READ|FA_WRITE;
gert_lauritsen 56:df9052e3808c 78 } else if(flags & O_WRONLY) {
gert_lauritsen 56:df9052e3808c 79 openmode = FA_WRITE;
gert_lauritsen 56:df9052e3808c 80 } else {
gert_lauritsen 56:df9052e3808c 81 openmode = FA_READ;
gert_lauritsen 56:df9052e3808c 82 }
gert_lauritsen 56:df9052e3808c 83 if(flags & O_CREAT) {
gert_lauritsen 56:df9052e3808c 84 if(flags & O_TRUNC) {
gert_lauritsen 56:df9052e3808c 85 openmode |= FA_CREATE_ALWAYS;
gert_lauritsen 56:df9052e3808c 86 } else {
gert_lauritsen 56:df9052e3808c 87 openmode |= FA_OPEN_ALWAYS;
gert_lauritsen 56:df9052e3808c 88 }
gert_lauritsen 56:df9052e3808c 89 }
gert_lauritsen 56:df9052e3808c 90
gert_lauritsen 56:df9052e3808c 91 FIL fh;
gert_lauritsen 56:df9052e3808c 92 FRESULT res = f_open(&fh, n, openmode);
gert_lauritsen 56:df9052e3808c 93 if (res) {
gert_lauritsen 56:df9052e3808c 94 debug_if(FFS_DBG, "f_open('w') failed: %d\n", res);
gert_lauritsen 56:df9052e3808c 95 return NULL;
gert_lauritsen 56:df9052e3808c 96 }
gert_lauritsen 56:df9052e3808c 97 if (flags & O_APPEND) {
gert_lauritsen 56:df9052e3808c 98 f_lseek(&fh, fh.fsize);
gert_lauritsen 56:df9052e3808c 99 }
gert_lauritsen 56:df9052e3808c 100 return new FATFileHandle(fh);
gert_lauritsen 56:df9052e3808c 101 }
gert_lauritsen 56:df9052e3808c 102
gert_lauritsen 56:df9052e3808c 103 int FATFileSystem::remove(const char *filename) {
gert_lauritsen 56:df9052e3808c 104 FRESULT res = f_unlink(filename);
gert_lauritsen 56:df9052e3808c 105 if (res) {
gert_lauritsen 56:df9052e3808c 106 debug_if(FFS_DBG, "f_unlink() failed: %d\n", res);
gert_lauritsen 56:df9052e3808c 107 return -1;
gert_lauritsen 56:df9052e3808c 108 }
gert_lauritsen 56:df9052e3808c 109 return 0;
gert_lauritsen 56:df9052e3808c 110 }
gert_lauritsen 56:df9052e3808c 111
gert_lauritsen 56:df9052e3808c 112 int FATFileSystem::rename(const char *oldname, const char *newname) {
gert_lauritsen 56:df9052e3808c 113 FRESULT res = f_rename(oldname, newname);
gert_lauritsen 56:df9052e3808c 114 if (res) {
gert_lauritsen 56:df9052e3808c 115 debug_if(FFS_DBG, "f_rename() failed: %d\n", res);
gert_lauritsen 56:df9052e3808c 116 return -1;
gert_lauritsen 56:df9052e3808c 117 }
gert_lauritsen 56:df9052e3808c 118 return 0;
gert_lauritsen 56:df9052e3808c 119 }
gert_lauritsen 56:df9052e3808c 120
gert_lauritsen 56:df9052e3808c 121 int FATFileSystem::format() {
gert_lauritsen 56:df9052e3808c 122 FRESULT res = f_mkfs(_fsid, 0, 512); // Logical drive number, Partitioning rule, Allocation unit size (bytes per cluster)
gert_lauritsen 56:df9052e3808c 123 if (res) {
gert_lauritsen 56:df9052e3808c 124 debug_if(FFS_DBG, "f_mkfs() failed: %d\n", res);
gert_lauritsen 56:df9052e3808c 125 return -1;
gert_lauritsen 56:df9052e3808c 126 }
gert_lauritsen 56:df9052e3808c 127 return 0;
gert_lauritsen 56:df9052e3808c 128 }
gert_lauritsen 56:df9052e3808c 129
gert_lauritsen 56:df9052e3808c 130 DirHandle *FATFileSystem::opendir(const char *name) {
gert_lauritsen 56:df9052e3808c 131 FATFS_DIR dir;
gert_lauritsen 56:df9052e3808c 132 FRESULT res = f_opendir(&dir, name);
gert_lauritsen 56:df9052e3808c 133 if (res != 0) {
gert_lauritsen 56:df9052e3808c 134 return NULL;
gert_lauritsen 56:df9052e3808c 135 }
gert_lauritsen 56:df9052e3808c 136 return new FATDirHandle(dir);
gert_lauritsen 56:df9052e3808c 137 }
gert_lauritsen 56:df9052e3808c 138
gert_lauritsen 56:df9052e3808c 139 int FATFileSystem::mkdir(const char *name, mode_t mode) {
gert_lauritsen 56:df9052e3808c 140 FRESULT res = f_mkdir(name);
gert_lauritsen 56:df9052e3808c 141 return res == 0 ? 0 : -1;
gert_lauritsen 56:df9052e3808c 142 }
gert_lauritsen 56:df9052e3808c 143
gert_lauritsen 56:df9052e3808c 144 int FATFileSystem::mount() {
gert_lauritsen 56:df9052e3808c 145 FRESULT res = f_mount(&_fs, _fsid, 1);
gert_lauritsen 56:df9052e3808c 146 return res == 0 ? 0 : -1;
gert_lauritsen 56:df9052e3808c 147 }
gert_lauritsen 56:df9052e3808c 148
gert_lauritsen 56:df9052e3808c 149 int FATFileSystem::unmount() {
gert_lauritsen 56:df9052e3808c 150 if (disk_sync())
gert_lauritsen 56:df9052e3808c 151 return -1;
gert_lauritsen 56:df9052e3808c 152 FRESULT res = f_mount(NULL, _fsid, 0);
gert_lauritsen 56:df9052e3808c 153 return res == 0 ? 0 : -1;
gert_lauritsen 56:df9052e3808c 154 }