Ahmed Adamjee / Mbed 2 deprecated SnakeVSBlock

Snake vs Block Game to be run upon K64F.

Dependencies:   mbed

MenuClasses/Stats/SDFileSystem/FATFileSystem/FATFileSystem.cpp@104:17040265b7b4, 2019-05-09 (annotated)

Committer:
AhmedPlaymaker
Date:
Thu May 09 14:52:19 2019 +0000
Revision:
104:17040265b7b4
Parent:
51:387249f9b333 
Final Submission. I have read and agreed with Statement of Academic Integrity.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AhmedPlaymaker 33:249cf423fb18 1 /* mbed Microcontroller Library
AhmedPlaymaker 33:249cf423fb18 2 * Copyright (c) 2006-2012 ARM Limited
AhmedPlaymaker 33:249cf423fb18 3 *
AhmedPlaymaker 33:249cf423fb18 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
AhmedPlaymaker 33:249cf423fb18 5 * of this software and associated documentation files (the "Software"), to deal
AhmedPlaymaker 33:249cf423fb18 6 * in the Software without restriction, including without limitation the rights
AhmedPlaymaker 33:249cf423fb18 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
AhmedPlaymaker 33:249cf423fb18 8 * copies of the Software, and to permit persons to whom the Software is
AhmedPlaymaker 33:249cf423fb18 9 * furnished to do so, subject to the following conditions:
AhmedPlaymaker 33:249cf423fb18 10 *
AhmedPlaymaker 33:249cf423fb18 11 * The above copyright notice and this permission notice shall be included in
AhmedPlaymaker 33:249cf423fb18 12 * all copies or substantial portions of the Software.
AhmedPlaymaker 33:249cf423fb18 13 *
AhmedPlaymaker 33:249cf423fb18 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
AhmedPlaymaker 33:249cf423fb18 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
AhmedPlaymaker 33:249cf423fb18 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AhmedPlaymaker 33:249cf423fb18 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
AhmedPlaymaker 33:249cf423fb18 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
AhmedPlaymaker 33:249cf423fb18 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
AhmedPlaymaker 33:249cf423fb18 20 * SOFTWARE.
AhmedPlaymaker 33:249cf423fb18 21 */
AhmedPlaymaker 33:249cf423fb18 22 #include "mbed.h"
AhmedPlaymaker 33:249cf423fb18 23
AhmedPlaymaker 33:249cf423fb18 24 #include "ffconf.h"
AhmedPlaymaker 33:249cf423fb18 25 #include "mbed_debug.h"
AhmedPlaymaker 33:249cf423fb18 26
AhmedPlaymaker 33:249cf423fb18 27 #include "FATFileSystem.h"
AhmedPlaymaker 33:249cf423fb18 28 #include "FATFileHandle.h"
AhmedPlaymaker 33:249cf423fb18 29 #include "FATDirHandle.h"
AhmedPlaymaker 33:249cf423fb18 30
AhmedPlaymaker 33:249cf423fb18 31 DWORD get_fattime(void) {
AhmedPlaymaker 33:249cf423fb18 32 time_t rawtime;
AhmedPlaymaker 33:249cf423fb18 33 time(&rawtime);
AhmedPlaymaker 33:249cf423fb18 34 struct tm *ptm = localtime(&rawtime);
AhmedPlaymaker 33:249cf423fb18 35 return (DWORD)(ptm->tm_year - 80) << 25
AhmedPlaymaker 33:249cf423fb18 36 | (DWORD)(ptm->tm_mon + 1 ) << 21
AhmedPlaymaker 33:249cf423fb18 37 | (DWORD)(ptm->tm_mday ) << 16
AhmedPlaymaker 33:249cf423fb18 38 | (DWORD)(ptm->tm_hour ) << 11
AhmedPlaymaker 33:249cf423fb18 39 | (DWORD)(ptm->tm_min ) << 5
AhmedPlaymaker 33:249cf423fb18 40 | (DWORD)(ptm->tm_sec/2 );
AhmedPlaymaker 33:249cf423fb18 41 }
AhmedPlaymaker 33:249cf423fb18 42
AhmedPlaymaker 33:249cf423fb18 43 FATFileSystem *FATFileSystem::_ffs[_VOLUMES] = {0};
AhmedPlaymaker 33:249cf423fb18 44
AhmedPlaymaker 33:249cf423fb18 45 FATFileSystem::FATFileSystem(const char* n) : FileSystemLike(n) {
AhmedPlaymaker 33:249cf423fb18 46 debug_if(FFS_DBG, "FATFileSystem(%s)\n", n);
AhmedPlaymaker 33:249cf423fb18 47 for(int i=0; i<_VOLUMES; i++) {
AhmedPlaymaker 33:249cf423fb18 48 if(_ffs[i] == 0) {
AhmedPlaymaker 33:249cf423fb18 49 _ffs[i] = this;
AhmedPlaymaker 33:249cf423fb18 50 _fsid[0] = '0' + i;
AhmedPlaymaker 33:249cf423fb18 51 _fsid[1] = '\0';
AhmedPlaymaker 33:249cf423fb18 52 debug_if(FFS_DBG, "Mounting [%s] on ffs drive [%s]\n", getName(), _fsid);
AhmedPlaymaker 33:249cf423fb18 53 f_mount(&_fs, _fsid, 0);
AhmedPlaymaker 33:249cf423fb18 54 return;
AhmedPlaymaker 33:249cf423fb18 55 }
AhmedPlaymaker 33:249cf423fb18 56 }
AhmedPlaymaker 33:249cf423fb18 57 error("Couldn't create %s in FATFileSystem::FATFileSystem\n", n);
AhmedPlaymaker 33:249cf423fb18 58 }
AhmedPlaymaker 33:249cf423fb18 59
AhmedPlaymaker 33:249cf423fb18 60 FATFileSystem::~FATFileSystem() {
AhmedPlaymaker 33:249cf423fb18 61 for (int i=0; i<_VOLUMES; i++) {
AhmedPlaymaker 33:249cf423fb18 62 if (_ffs[i] == this) {
AhmedPlaymaker 33:249cf423fb18 63 _ffs[i] = 0;
AhmedPlaymaker 33:249cf423fb18 64 f_mount(NULL, _fsid, 0);
AhmedPlaymaker 33:249cf423fb18 65 }
AhmedPlaymaker 33:249cf423fb18 66 }
AhmedPlaymaker 33:249cf423fb18 67 }
AhmedPlaymaker 33:249cf423fb18 68
AhmedPlaymaker 33:249cf423fb18 69 FileHandle *FATFileSystem::open(const char* name, int flags) {
AhmedPlaymaker 33:249cf423fb18 70 debug_if(FFS_DBG, "open(%s) on filesystem [%s], drv [%s]\n", name, getName(), _fsid);
AhmedPlaymaker 33:249cf423fb18 71 char n[64];
AhmedPlaymaker 33:249cf423fb18 72 sprintf(n, "%s:/%s", _fsid, name);
AhmedPlaymaker 33:249cf423fb18 73
AhmedPlaymaker 33:249cf423fb18 74 /* POSIX flags -> FatFS open mode */
AhmedPlaymaker 33:249cf423fb18 75 BYTE openmode;
AhmedPlaymaker 33:249cf423fb18 76 if (flags & O_RDWR) {
AhmedPlaymaker 33:249cf423fb18 77 openmode = FA_READ|FA_WRITE;
AhmedPlaymaker 33:249cf423fb18 78 } else if(flags & O_WRONLY) {
AhmedPlaymaker 33:249cf423fb18 79 openmode = FA_WRITE;
AhmedPlaymaker 33:249cf423fb18 80 } else {
AhmedPlaymaker 33:249cf423fb18 81 openmode = FA_READ;
AhmedPlaymaker 33:249cf423fb18 82 }
AhmedPlaymaker 33:249cf423fb18 83 if(flags & O_CREAT) {
AhmedPlaymaker 33:249cf423fb18 84 if(flags & O_TRUNC) {
AhmedPlaymaker 33:249cf423fb18 85 openmode |= FA_CREATE_ALWAYS;
AhmedPlaymaker 33:249cf423fb18 86 } else {
AhmedPlaymaker 33:249cf423fb18 87 openmode |= FA_OPEN_ALWAYS;
AhmedPlaymaker 33:249cf423fb18 88 }
AhmedPlaymaker 33:249cf423fb18 89 }
AhmedPlaymaker 33:249cf423fb18 90
AhmedPlaymaker 33:249cf423fb18 91 FIL fh;
AhmedPlaymaker 33:249cf423fb18 92 FRESULT res = f_open(&fh, n, openmode);
AhmedPlaymaker 33:249cf423fb18 93 if (res) {
AhmedPlaymaker 33:249cf423fb18 94 debug_if(FFS_DBG, "f_open('w') failed: %d\n", res);
AhmedPlaymaker 33:249cf423fb18 95 return NULL;
AhmedPlaymaker 33:249cf423fb18 96 }
AhmedPlaymaker 33:249cf423fb18 97 if (flags & O_APPEND) {
AhmedPlaymaker 33:249cf423fb18 98 f_lseek(&fh, fh.fsize);
AhmedPlaymaker 33:249cf423fb18 99 }
AhmedPlaymaker 33:249cf423fb18 100 return new FATFileHandle(fh);
AhmedPlaymaker 33:249cf423fb18 101 }
AhmedPlaymaker 33:249cf423fb18 102
AhmedPlaymaker 33:249cf423fb18 103 int FATFileSystem::open(FileHandle **file, const char *name, int flags) {
AhmedPlaymaker 33:249cf423fb18 104 FileHandle *temp = open(name, flags);
AhmedPlaymaker 33:249cf423fb18 105 if (!temp) {
AhmedPlaymaker 33:249cf423fb18 106 return -1;
AhmedPlaymaker 33:249cf423fb18 107 }
AhmedPlaymaker 33:249cf423fb18 108
AhmedPlaymaker 33:249cf423fb18 109 *file = temp;
AhmedPlaymaker 33:249cf423fb18 110 return 0;
AhmedPlaymaker 33:249cf423fb18 111 }
AhmedPlaymaker 33:249cf423fb18 112
AhmedPlaymaker 33:249cf423fb18 113 int FATFileSystem::remove(const char *filename) {
AhmedPlaymaker 33:249cf423fb18 114 FRESULT res = f_unlink(filename);
AhmedPlaymaker 33:249cf423fb18 115 if (res) {
AhmedPlaymaker 33:249cf423fb18 116 debug_if(FFS_DBG, "f_unlink() failed: %d\n", res);
AhmedPlaymaker 33:249cf423fb18 117 return -1;
AhmedPlaymaker 33:249cf423fb18 118 }
AhmedPlaymaker 33:249cf423fb18 119 return 0;
AhmedPlaymaker 33:249cf423fb18 120 }
AhmedPlaymaker 33:249cf423fb18 121
AhmedPlaymaker 33:249cf423fb18 122 int FATFileSystem::rename(const char *oldname, const char *newname) {
AhmedPlaymaker 33:249cf423fb18 123 FRESULT res = f_rename(oldname, newname);
AhmedPlaymaker 33:249cf423fb18 124 if (res) {
AhmedPlaymaker 33:249cf423fb18 125 debug_if(FFS_DBG, "f_rename() failed: %d\n", res);
AhmedPlaymaker 33:249cf423fb18 126 return -1;
AhmedPlaymaker 33:249cf423fb18 127 }
AhmedPlaymaker 33:249cf423fb18 128 return 0;
AhmedPlaymaker 33:249cf423fb18 129 }
AhmedPlaymaker 33:249cf423fb18 130
AhmedPlaymaker 33:249cf423fb18 131 int FATFileSystem::format() {
AhmedPlaymaker 33:249cf423fb18 132 FRESULT res = f_mkfs(_fsid, 0, 512); // Logical drive number, Partitioning rule, Allocation unit size (bytes per cluster)
AhmedPlaymaker 33:249cf423fb18 133 if (res) {
AhmedPlaymaker 33:249cf423fb18 134 debug_if(FFS_DBG, "f_mkfs() failed: %d\n", res);
AhmedPlaymaker 33:249cf423fb18 135 return -1;
AhmedPlaymaker 33:249cf423fb18 136 }
AhmedPlaymaker 33:249cf423fb18 137 return 0;
AhmedPlaymaker 33:249cf423fb18 138 }
AhmedPlaymaker 33:249cf423fb18 139
AhmedPlaymaker 33:249cf423fb18 140 DirHandle *FATFileSystem::opendir(const char *name) {
AhmedPlaymaker 33:249cf423fb18 141 FATFS_DIR dir;
AhmedPlaymaker 33:249cf423fb18 142 FRESULT res = f_opendir(&dir, name);
AhmedPlaymaker 33:249cf423fb18 143 if (res != 0) {
AhmedPlaymaker 33:249cf423fb18 144 return NULL;
AhmedPlaymaker 33:249cf423fb18 145 }
AhmedPlaymaker 33:249cf423fb18 146 return new FATDirHandle(dir);
AhmedPlaymaker 33:249cf423fb18 147 }
AhmedPlaymaker 33:249cf423fb18 148
AhmedPlaymaker 33:249cf423fb18 149 int FATFileSystem::open(DirHandle **dir, const char *name) {
AhmedPlaymaker 33:249cf423fb18 150 DirHandle *temp = opendir(name);
AhmedPlaymaker 33:249cf423fb18 151 if (!temp) {
AhmedPlaymaker 33:249cf423fb18 152 return -1;
AhmedPlaymaker 33:249cf423fb18 153 }
AhmedPlaymaker 33:249cf423fb18 154
AhmedPlaymaker 33:249cf423fb18 155 *dir = temp;
AhmedPlaymaker 33:249cf423fb18 156 return 0;
AhmedPlaymaker 33:249cf423fb18 157 }
AhmedPlaymaker 33:249cf423fb18 158
AhmedPlaymaker 33:249cf423fb18 159 int FATFileSystem::mkdir(const char *name, mode_t mode) {
AhmedPlaymaker 33:249cf423fb18 160 FRESULT res = f_mkdir(name);
AhmedPlaymaker 33:249cf423fb18 161 return res == 0 ? 0 : -1;
AhmedPlaymaker 33:249cf423fb18 162 }
AhmedPlaymaker 33:249cf423fb18 163
AhmedPlaymaker 33:249cf423fb18 164 int FATFileSystem::mount() {
AhmedPlaymaker 33:249cf423fb18 165 FRESULT res = f_mount(&_fs, _fsid, 1);
AhmedPlaymaker 33:249cf423fb18 166 return res == 0 ? 0 : -1;
AhmedPlaymaker 33:249cf423fb18 167 }
AhmedPlaymaker 33:249cf423fb18 168
AhmedPlaymaker 33:249cf423fb18 169 int FATFileSystem::unmount() {
AhmedPlaymaker 33:249cf423fb18 170 if (disk_sync())
AhmedPlaymaker 33:249cf423fb18 171 return -1;
AhmedPlaymaker 33:249cf423fb18 172 FRESULT res = f_mount(NULL, _fsid, 0);
AhmedPlaymaker 33:249cf423fb18 173 return res == 0 ? 0 : -1;
AhmedPlaymaker 33:249cf423fb18 174 }