Yasushi Maruishi / Mbed 2 deprecated Interface_FRDMK64F_HMD_Sample_full

Stand-alone HMD demo system built on mbed FRDM-K64F.

Dependencies:   SDFileSystem mbed FATFileSystem

SDFileSystem/FATFileSystem/FATDirHandle.cpp@0:9bbe50de69d8, 2014-07-29 (annotated)

Committer:
maruishi
Date:
Tue Jul 29 11:41:59 2014 +0000
Revision:
0:9bbe50de69d8
FRDM-K64F based 3D Head-mount-display for Interface(CQ Pub)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
maruishi 0:9bbe50de69d8 1 /* mbed Microcontroller Library
maruishi 0:9bbe50de69d8 2 * Copyright (c) 2006-2012 ARM Limited
maruishi 0:9bbe50de69d8 3 *
maruishi 0:9bbe50de69d8 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
maruishi 0:9bbe50de69d8 5 * of this software and associated documentation files (the "Software"), to deal
maruishi 0:9bbe50de69d8 6 * in the Software without restriction, including without limitation the rights
maruishi 0:9bbe50de69d8 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
maruishi 0:9bbe50de69d8 8 * copies of the Software, and to permit persons to whom the Software is
maruishi 0:9bbe50de69d8 9 * furnished to do so, subject to the following conditions:
maruishi 0:9bbe50de69d8 10 *
maruishi 0:9bbe50de69d8 11 * The above copyright notice and this permission notice shall be included in
maruishi 0:9bbe50de69d8 12 * all copies or substantial portions of the Software.
maruishi 0:9bbe50de69d8 13 *
maruishi 0:9bbe50de69d8 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
maruishi 0:9bbe50de69d8 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
maruishi 0:9bbe50de69d8 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
maruishi 0:9bbe50de69d8 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
maruishi 0:9bbe50de69d8 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
maruishi 0:9bbe50de69d8 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
maruishi 0:9bbe50de69d8 20 * SOFTWARE.
maruishi 0:9bbe50de69d8 21 */
maruishi 0:9bbe50de69d8 22 #include <string.h>
maruishi 0:9bbe50de69d8 23 #include "ff.h"
maruishi 0:9bbe50de69d8 24 #include "FATDirHandle.h"
maruishi 0:9bbe50de69d8 25
maruishi 0:9bbe50de69d8 26 using namespace mbed;
maruishi 0:9bbe50de69d8 27
maruishi 0:9bbe50de69d8 28 FATDirHandle::FATDirHandle(const FATFS_DIR &the_dir) {
maruishi 0:9bbe50de69d8 29 dir = the_dir;
maruishi 0:9bbe50de69d8 30 }
maruishi 0:9bbe50de69d8 31
maruishi 0:9bbe50de69d8 32 int FATDirHandle::closedir() {
maruishi 0:9bbe50de69d8 33 delete this;
maruishi 0:9bbe50de69d8 34 return 0;
maruishi 0:9bbe50de69d8 35 }
maruishi 0:9bbe50de69d8 36
maruishi 0:9bbe50de69d8 37 struct dirent *FATDirHandle::readdir() {
maruishi 0:9bbe50de69d8 38 FILINFO finfo;
maruishi 0:9bbe50de69d8 39
maruishi 0:9bbe50de69d8 40 #if _USE_LFN
maruishi 0:9bbe50de69d8 41 finfo.lfname = cur_entry.d_name;
maruishi 0:9bbe50de69d8 42 finfo.lfsize = sizeof(cur_entry.d_name);
maruishi 0:9bbe50de69d8 43 #endif // _USE_LFN
maruishi 0:9bbe50de69d8 44
maruishi 0:9bbe50de69d8 45 FRESULT res = f_readdir(&dir, &finfo);
maruishi 0:9bbe50de69d8 46
maruishi 0:9bbe50de69d8 47 #if _USE_LFN
maruishi 0:9bbe50de69d8 48 if(res != 0 || finfo.fname[0]==0) {
maruishi 0:9bbe50de69d8 49 return NULL;
maruishi 0:9bbe50de69d8 50 } else {
maruishi 0:9bbe50de69d8 51 if(cur_entry.d_name[0]==0) {
maruishi 0:9bbe50de69d8 52 // No long filename so use short filename.
maruishi 0:9bbe50de69d8 53 memcpy(cur_entry.d_name, finfo.fname, sizeof(finfo.fname));
maruishi 0:9bbe50de69d8 54 }
maruishi 0:9bbe50de69d8 55 return &cur_entry;
maruishi 0:9bbe50de69d8 56 }
maruishi 0:9bbe50de69d8 57 #else
maruishi 0:9bbe50de69d8 58 if(res != 0 || finfo.fname[0]==0) {
maruishi 0:9bbe50de69d8 59 return NULL;
maruishi 0:9bbe50de69d8 60 } else {
maruishi 0:9bbe50de69d8 61 memcpy(cur_entry.d_name, finfo.fname, sizeof(finfo.fname));
maruishi 0:9bbe50de69d8 62 return &cur_entry;
maruishi 0:9bbe50de69d8 63 }
maruishi 0:9bbe50de69d8 64 #endif /* _USE_LFN */
maruishi 0:9bbe50de69d8 65 }
maruishi 0:9bbe50de69d8 66
maruishi 0:9bbe50de69d8 67 void FATDirHandle::rewinddir() {
maruishi 0:9bbe50de69d8 68 dir.index = 0;
maruishi 0:9bbe50de69d8 69 }
maruishi 0:9bbe50de69d8 70
maruishi 0:9bbe50de69d8 71 off_t FATDirHandle::telldir() {
maruishi 0:9bbe50de69d8 72 return dir.index;
maruishi 0:9bbe50de69d8 73 }
maruishi 0:9bbe50de69d8 74
maruishi 0:9bbe50de69d8 75 void FATDirHandle::seekdir(off_t location) {
maruishi 0:9bbe50de69d8 76 dir.index = location;
maruishi 0:9bbe50de69d8 77 }
maruishi 0:9bbe50de69d8 78