Jksoft Blue mbed Board Developer / Mbed 2 deprecated JBB_WavePlayer_test

microSDカードからWaveファイルを再生するサンプルです。

Dependencies:   mbed FATFileSystem

SDFileSystem/FATFileSystem/FATDirHandle.cpp@0:e9f196d85a46, 2014-05-12 (annotated)

Committer:
jksoft
Date:
Mon May 12 14:45:42 2014 +0000
Revision:
0:e9f196d85a46
First edition

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jksoft 0:e9f196d85a46 1 /* mbed Microcontroller Library
jksoft 0:e9f196d85a46 2 * Copyright (c) 2006-2012 ARM Limited
jksoft 0:e9f196d85a46 3 *
jksoft 0:e9f196d85a46 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
jksoft 0:e9f196d85a46 5 * of this software and associated documentation files (the "Software"), to deal
jksoft 0:e9f196d85a46 6 * in the Software without restriction, including without limitation the rights
jksoft 0:e9f196d85a46 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
jksoft 0:e9f196d85a46 8 * copies of the Software, and to permit persons to whom the Software is
jksoft 0:e9f196d85a46 9 * furnished to do so, subject to the following conditions:
jksoft 0:e9f196d85a46 10 *
jksoft 0:e9f196d85a46 11 * The above copyright notice and this permission notice shall be included in
jksoft 0:e9f196d85a46 12 * all copies or substantial portions of the Software.
jksoft 0:e9f196d85a46 13 *
jksoft 0:e9f196d85a46 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
jksoft 0:e9f196d85a46 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
jksoft 0:e9f196d85a46 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
jksoft 0:e9f196d85a46 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
jksoft 0:e9f196d85a46 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
jksoft 0:e9f196d85a46 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
jksoft 0:e9f196d85a46 20 * SOFTWARE.
jksoft 0:e9f196d85a46 21 */
jksoft 0:e9f196d85a46 22 #include <string.h>
jksoft 0:e9f196d85a46 23 #include "ff.h"
jksoft 0:e9f196d85a46 24 #include "FATDirHandle.h"
jksoft 0:e9f196d85a46 25
jksoft 0:e9f196d85a46 26 using namespace mbed;
jksoft 0:e9f196d85a46 27
jksoft 0:e9f196d85a46 28 FATDirHandle::FATDirHandle(const FATFS_DIR &the_dir) {
jksoft 0:e9f196d85a46 29 dir = the_dir;
jksoft 0:e9f196d85a46 30 }
jksoft 0:e9f196d85a46 31
jksoft 0:e9f196d85a46 32 int FATDirHandle::closedir() {
jksoft 0:e9f196d85a46 33 delete this;
jksoft 0:e9f196d85a46 34 return 0;
jksoft 0:e9f196d85a46 35 }
jksoft 0:e9f196d85a46 36
jksoft 0:e9f196d85a46 37 struct dirent *FATDirHandle::readdir() {
jksoft 0:e9f196d85a46 38 FILINFO finfo;
jksoft 0:e9f196d85a46 39
jksoft 0:e9f196d85a46 40 #if _USE_LFN
jksoft 0:e9f196d85a46 41 finfo.lfname = cur_entry.d_name;
jksoft 0:e9f196d85a46 42 finfo.lfsize = sizeof(cur_entry.d_name);
jksoft 0:e9f196d85a46 43 #endif // _USE_LFN
jksoft 0:e9f196d85a46 44
jksoft 0:e9f196d85a46 45 FRESULT res = f_readdir(&dir, &finfo);
jksoft 0:e9f196d85a46 46
jksoft 0:e9f196d85a46 47 #if _USE_LFN
jksoft 0:e9f196d85a46 48 if(res != 0 || finfo.fname[0]==0) {
jksoft 0:e9f196d85a46 49 return NULL;
jksoft 0:e9f196d85a46 50 } else {
jksoft 0:e9f196d85a46 51 if(cur_entry.d_name[0]==0) {
jksoft 0:e9f196d85a46 52 // No long filename so use short filename.
jksoft 0:e9f196d85a46 53 memcpy(cur_entry.d_name, finfo.fname, sizeof(finfo.fname));
jksoft 0:e9f196d85a46 54 }
jksoft 0:e9f196d85a46 55 return &cur_entry;
jksoft 0:e9f196d85a46 56 }
jksoft 0:e9f196d85a46 57 #else
jksoft 0:e9f196d85a46 58 if(res != 0 || finfo.fname[0]==0) {
jksoft 0:e9f196d85a46 59 return NULL;
jksoft 0:e9f196d85a46 60 } else {
jksoft 0:e9f196d85a46 61 memcpy(cur_entry.d_name, finfo.fname, sizeof(finfo.fname));
jksoft 0:e9f196d85a46 62 return &cur_entry;
jksoft 0:e9f196d85a46 63 }
jksoft 0:e9f196d85a46 64 #endif /* _USE_LFN */
jksoft 0:e9f196d85a46 65 }
jksoft 0:e9f196d85a46 66
jksoft 0:e9f196d85a46 67 void FATDirHandle::rewinddir() {
jksoft 0:e9f196d85a46 68 dir.index = 0;
jksoft 0:e9f196d85a46 69 }
jksoft 0:e9f196d85a46 70
jksoft 0:e9f196d85a46 71 off_t FATDirHandle::telldir() {
jksoft 0:e9f196d85a46 72 return dir.index;
jksoft 0:e9f196d85a46 73 }
jksoft 0:e9f196d85a46 74
jksoft 0:e9f196d85a46 75 void FATDirHandle::seekdir(off_t location) {
jksoft 0:e9f196d85a46 76 dir.index = location;
jksoft 0:e9f196d85a46 77 }
jksoft 0:e9f196d85a46 78