1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
|
/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.io/license.html
*/
/********************************************************
* The FATFS file-system
********************************************************/
#include "../../gfx.h"
#if GFX_USE_GFILE && GFILE_NEED_FATFS
#include "gfile_fs.h"
#include "gfile_fatfs_wrapper.h"
/********************************************************
* The FAT file-system VMT
********************************************************/
static gBool fatfsDel(const char* fname);
static gBool fatfsExists(const char* fname);
static long int fatfsFileSize(const char* fname);
static gBool fatfsRename(const char* oldname, const char* newname);
static gBool fatfsOpen(GFILE* f, const char* fname);
static void fatfsClose(GFILE* f);
static int fatfsRead(GFILE* f, void* buf, int size);
static int fatfsWrite(GFILE* f, const void* buf, int size);
static gBool fatfsSetPos(GFILE* f, long int pos);
static long int fatfsGetSize(GFILE* f);
static gBool fatfsEOF(GFILE* f);
static gBool fatfsMount(const char* drive);
static gBool fatfsUnmount(const char* drive);
static gBool fatfsSync(GFILE* f);
#if GFILE_NEED_FILELISTS && _FS_MINIMIZE <= 1
static gfileList *fatfsFlOpen(const char *path, gBool dirs);
static const char *fatfsFlRead(gfileList *pfl);
static void fatfsFlClose(gfileList *pfl);
#endif
const GFILEVMT FsFatFSVMT = {
GFSFLG_WRITEABLE | GFSFLG_SEEKABLE,
'F',
fatfsDel,
fatfsExists,
fatfsFileSize,
fatfsRename,
fatfsOpen,
fatfsClose,
fatfsRead,
fatfsWrite,
fatfsSetPos,
fatfsGetSize,
fatfsEOF,
fatfsMount, fatfsUnmount, fatfsSync,
#if GFILE_NEED_FILELISTS
#if _FS_MINIMIZE <= 1
fatfsFlOpen, fatfsFlRead, fatfsFlClose
#else
0, 0, 0
#endif
#endif
};
// Our directory list structure
typedef struct fatfsList {
gfileList fl; // This must be the first element.
DIR dir;
FILINFO fno;
#if _USE_LFN
char lfn[_MAX_LFN + 1]; /* Buffer to store the LFN */
#endif
} fatfsList;
// optimize these later on. Use an array to have multiple FatFS
static gBool fatfs_mounted = gFalse;
static FATFS fatfs_fs;
static BYTE fatfs_flags2mode(GFILE* f)
{
BYTE mode = 0;
if (f->flags & GFILEFLG_READ)
mode |= FA_READ;
if (f->flags & GFILEFLG_WRITE)
mode |= FA_WRITE;
if (f->flags & GFILEFLG_APPEND)
mode |= FA_OPEN_APPEND;
if (f->flags & GFILEFLG_TRUNC)
mode |= FA_CREATE_ALWAYS;
/* ToDo - Complete */
return mode;
}
static gBool fatfsDel(const char* fname)
{
FRESULT ferr;
ferr = f_unlink( (const TCHAR*)fname );
if (ferr != FR_OK)
return gFalse;
return gTrue;
}
static gBool fatfsExists(const char* fname)
{
FRESULT ferr;
FILINFO fno;
ferr = f_stat( (const TCHAR*)fname, &fno);
if (ferr != FR_OK)
return gFalse;
return gTrue;
}
static long int fatfsFileSize(const char* fname)
{
FRESULT ferr;
FILINFO fno;
ferr = f_stat( (const TCHAR*)fname, &fno );
if (ferr != FR_OK)
return 0;
return (long int)fno.fsize;
}
static gBool fatfsRename(const char* oldname, const char* newname)
{
FRESULT ferr;
ferr = f_rename( (const TCHAR*)oldname, (const TCHAR*)newname );
if (ferr != FR_OK)
return gFalse;
return gTrue;
}
static gBool fatfsOpen(GFILE* f, const char* fname)
{
FIL* fd;
#if !GFILE_NEED_NOAUTOMOUNT
if (!fatfs_mounted && !fatfsMount(""))
return gFalse;
#endif
if (!(fd = gfxAlloc(sizeof(FIL))))
return gFalse;
if (f_open(fd, fname, fatfs_flags2mode(f)) != FR_OK) {
gfxFree(fd);
f->obj = 0;
return gFalse;
}
f->obj = (void*)fd;
#if !GFILE_NEED_NOAUTOSYNC
// no need to sync when not opening for write
if (f->flags & GFILEFLG_WRITE) {
f_sync( (FIL*)f->obj );
}
#endif
return gTrue;
}
static void fatfsClose(GFILE* f)
{
if ((FIL*)f->obj != 0) {
f_close( (FIL*)f->obj );
gfxFree( (FIL*)f->obj );
}
}
static int fatfsRead(GFILE* f, void* buf, int size)
{
int br;
f_read( (FIL*)f->obj, buf, size, (UINT*)&br);
return br;
}
static int fatfsWrite(GFILE* f, const void* buf, int size)
{
int wr;
f_write( (FIL*)f->obj, buf, size, (UINT*)&wr);
#if !GFILE_NEED_NOAUTOSYNC
f_sync( (FIL*)f->obj );
#endif
return wr;
}
static gBool fatfsSetPos(GFILE* f, long int pos)
{
FRESULT ferr;
ferr = f_lseek( (FIL*)f->obj, (DWORD)pos );
if (ferr != FR_OK)
return gFalse;
return gTrue;
}
static long int fatfsGetSize(GFILE* f)
{
return (long int)f_size( (FIL*)f->obj );
}
static gBool fatfsEOF(GFILE* f)
{
if ( f_eof( (FIL*)f->obj ) != 0)
return gTrue;
else
return gFalse;
}
static gBool fatfsMount(const char* drive)
{
FRESULT ferr;
if (!fatfs_mounted) {
ferr = f_mount(&fatfs_fs, drive, 1);
if (ferr != FR_OK)
return gFalse;
fatfs_mounted = gTrue;
return gTrue;
}
return gFalse;
}
static gBool fatfsUnmount(const char* drive)
{
(void)drive;
if (fatfs_mounted) {
// FatFS does not provide an unmount routine.
fatfs_mounted = gFalse;
return gTrue;
}
return gFalse;
}
static gBool fatfsSync(GFILE *f)
{
FRESULT ferr;
ferr = f_sync( (FIL*)f->obj );
if (ferr != FR_OK) {
return gFalse;
}
return gTrue;
}
#if GFILE_NEED_FILELISTS && _FS_MINIMIZE <= 1
static gfileList *fatfsFlOpen(const char *path, gBool dirs) {
fatfsList *p;
(void) dirs;
if (!(p = gfxAlloc(sizeof(fatfsList))))
return 0;
if (f_opendir(&p->dir, path) != FR_OK) {
gfxFree(p);
return 0;
}
return &p->fl;
}
static const char *fatfsFlRead(gfileList *pfl) {
#define ffl ((fatfsList *)pfl)
while(1) {
#if _USE_LFN
ffl->fno.lfname = ffl->lfn;
ffl->fno.lfsize = sizeof(ffl->lfn);
#endif
// Read the next entry
if (f_readdir(&ffl->dir, &ffl->fno) != FR_OK || !ffl->fno.fname[0])
return 0;
/* Ignore dot entries */
if (ffl->fno.fname[0] == '.') continue;
/* Is it a directory */
if (ffl->fl.dirs) {
if ((ffl->fno.fattrib & AM_DIR))
break;
} else {
if (!(ffl->fno.fattrib & AM_DIR))
break;
}
}
#if _USE_LFN
return ffl->fno.lfname[0] ? ffl->fno.lfname : ffl->fno.fname;
#else
return ffl->fno.fname;
#endif
#undef ffl
}
static void fatfsFlClose(gfileList *pfl) {
f_closedir(&((fatfsList *)pfl)->dir);
gfxFree(pfl);
}
#endif
#endif //GFX_USE_GFILE && GFILE_NEED_FATFS
|
