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
|
/*-----------------------------------------------------------------------*/
/* Low level disk I/O module skeleton for FatFs (C)ChaN, 2014 */
/*-----------------------------------------------------------------------*/
/* If a working storage control module is available, it should be */
/* attached to the FatFs via a glue function rather than modifying it. */
/* This is an example of glue functions to attach various exsisting */
/* storage control modules to the FatFs module with a defined API. */
/*-----------------------------------------------------------------------*/
#include <stdint.h>
#include <stdbool.h>
#include "py/mpconfig.h"
#include "py/obj.h"
#include "diskio.h" /* FatFs lower layer API */
#include "sflash_diskio.h" /* Serial flash disk IO API */
#if MICROPY_HW_HAS_SDCARD
#include "sd_diskio.h" /* SDCARD disk IO API */
#endif
#include "inc/hw_types.h"
#include "inc/hw_ints.h"
#include "inc/hw_memmap.h"
#include "rom_map.h"
#include "prcm.h"
#include "pybrtc.h"
#include "timeutils.h"
/* Definitions of physical drive number for each drive */
#define SFLASH 0 /* Map SFLASH drive to drive number 0 */
#define SDCARD 1 /* Map SD card to drive number 1 */
/*-----------------------------------------------------------------------*/
/* Get Drive Status */
/*-----------------------------------------------------------------------*/
DSTATUS disk_status (
BYTE pdrv /* Physical drive nmuber to identify the drive */
)
{
switch (pdrv) {
case SFLASH :
return sflash_disk_status();
#if MICROPY_HW_HAS_SDCARD
case SDCARD :
return sd_disk_status();
#endif
default:
break;
}
return STA_NODISK;
}
/*-----------------------------------------------------------------------*/
/* Inidialize a Drive */
/*-----------------------------------------------------------------------*/
DSTATUS disk_initialize (
BYTE pdrv /* Physical drive nmuber to identify the drive */
)
{
DSTATUS stat = 0;
switch (pdrv) {
case SFLASH :
if (RES_OK != sflash_disk_init()) {
stat = STA_NOINIT;
}
return stat;
#if MICROPY_HW_HAS_SDCARD
case SDCARD :
if (RES_OK != sd_disk_init()) {
stat = STA_NOINIT;
}
return stat;
#endif
default:
break;
}
return STA_NOINIT;
}
/*-----------------------------------------------------------------------*/
/* Read Sector(s) */
/*-----------------------------------------------------------------------*/
DRESULT disk_read (
BYTE pdrv, /* Physical drive nmuber to identify the drive */
BYTE *buff, /* Data buffer to store read data */
DWORD sector, /* Sector address in LBA */
UINT count /* Number of sectors to read */
)
{
switch (pdrv) {
case SFLASH :
return sflash_disk_read(buff, sector, count);
#if MICROPY_HW_HAS_SDCARD
case SDCARD :
return sd_disk_read(buff, sector, count);
#endif
default:
break;
}
return RES_PARERR;
}
/*-----------------------------------------------------------------------*/
/* Write Sector(s) */
/*-----------------------------------------------------------------------*/
#if _USE_WRITE
DRESULT disk_write (
BYTE pdrv, /* Physical drive nmuber to identify the drive */
const BYTE *buff, /* Data to be written */
DWORD sector, /* Sector address in LBA */
UINT count /* Number of sectors to write */
)
{
switch (pdrv) {
case SFLASH :
return sflash_disk_write(buff, sector, count);
#if MICROPY_HW_HAS_SDCARD
case SDCARD :
return sd_disk_write(buff, sector, count);
#endif
default:
break;
}
return RES_PARERR;
}
#endif
/*-----------------------------------------------------------------------*/
/* Miscellaneous Functions */
/*-----------------------------------------------------------------------*/
#if _USE_IOCTL
DRESULT disk_ioctl (
BYTE pdrv, /* Physical drive nmuber (0..) */
BYTE cmd, /* Control code */
void *buff /* Buffer to send/receive control data */
)
{
switch (pdrv) {
case SFLASH:
switch (cmd) {
case CTRL_SYNC:
return sflash_disk_flush();
case GET_SECTOR_COUNT:
*((DWORD*)buff) = SFLASH_SECTOR_COUNT;
return RES_OK;
break;
case GET_SECTOR_SIZE:
*((WORD*)buff) = SFLASH_SECTOR_SIZE;
return RES_OK;
break;
case GET_BLOCK_SIZE:
*((DWORD*)buff) = 1; // high-level sector erase size in units of the block size
return RES_OK;
}
break;
#if MICROPY_HW_HAS_SDCARD
case SDCARD:
switch (cmd) {
case CTRL_SYNC:
return RES_OK;
case GET_SECTOR_COUNT:
*(WORD*)buff = sd_disk_info.ulNofBlock;
break;
case GET_SECTOR_SIZE :
*(WORD*)buff = SD_SECTOR_SIZE;
break;
case GET_BLOCK_SIZE:
*((DWORD*)buff) = 1; // high-level sector erase size in units of the block size
return RES_OK;
}
break;
#endif
}
return RES_PARERR;
}
#endif
#if !_FS_READONLY && !_FS_NORTC
DWORD get_fattime (
void
)
{
timeutils_struct_time_t tm;
timeutils_seconds_since_2000_to_struct_time(pybrtc_get_seconds(), &tm);
return ((tm.tm_year - 1980) << 25) | ((tm.tm_mon) << 21) |
((tm.tm_mday) << 16) | ((tm.tm_hour) << 11) |
((tm.tm_min) << 5) | (tm.tm_sec >> 1);
}
#endif
|
