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git.gir.st - tmk_keyboard.git/blob - tmk_core/tool/mbed/mbed-sdk/libraries/fs/fat/ChaN/diskio.cpp
1 /*-----------------------------------------------------------------------*/
2 /* Low level disk I/O module skeleton for FatFs (C)ChaN, 2007 */
3 /*-----------------------------------------------------------------------*/
4 /* This is a stub disk I/O module that acts as front end of the existing */
5 /* disk I/O modules and attach it to FatFs module with common interface. */
6 /*-----------------------------------------------------------------------*/
10 #include "mbed_debug.h"
11 #include "FATFileSystem.h"
15 DSTATUS
disk_initialize (
16 BYTE drv
/* Physical drive nmuber (0..) */
19 debug_if(FFS_DBG
, "disk_initialize on drv [%d]\n", drv
);
20 return (DSTATUS
)FATFileSystem::_ffs
[drv
]->disk_initialize();
24 BYTE drv
/* Physical drive nmuber (0..) */
27 debug_if(FFS_DBG
, "disk_status on drv [%d]\n", drv
);
28 return (DSTATUS
)FATFileSystem::_ffs
[drv
]->disk_status();
32 BYTE drv
, /* Physical drive nmuber (0..) */
33 BYTE
*buff
, /* Data buffer to store read data */
34 DWORD sector
, /* Sector address (LBA) */
35 BYTE count
/* Number of sectors to read (1..255) */
38 debug_if(FFS_DBG
, "disk_read(sector %d, count %d) on drv [%d]\n", sector
, count
, drv
);
39 if (FATFileSystem::_ffs
[drv
]->disk_read((uint8_t*)buff
, sector
, count
))
47 BYTE drv
, /* Physical drive nmuber (0..) */
48 const BYTE
*buff
, /* Data to be written */
49 DWORD sector
, /* Sector address (LBA) */
50 BYTE count
/* Number of sectors to write (1..255) */
53 debug_if(FFS_DBG
, "disk_write(sector %d, count %d) on drv [%d]\n", sector
, count
, drv
);
54 if (FATFileSystem::_ffs
[drv
]->disk_write((uint8_t*)buff
, sector
, count
))
59 #endif /* _READONLY */
62 BYTE drv
, /* Physical drive nmuber (0..) */
63 BYTE ctrl
, /* Control code */
64 void *buff
/* Buffer to send/receive control data */
67 debug_if(FFS_DBG
, "disk_ioctl(%d)\n", ctrl
);
70 if(FATFileSystem::_ffs
[drv
] == NULL
) {
72 } else if(FATFileSystem::_ffs
[drv
]->disk_sync()) {
76 case GET_SECTOR_COUNT
:
77 if(FATFileSystem::_ffs
[drv
] == NULL
) {
80 DWORD res
= FATFileSystem::_ffs
[drv
]->disk_sectors();
82 *((DWORD
*)buff
) = res
; // minimum allowed
89 *((DWORD
*)buff
) = 1; // default when not known