This is SDFileSystem which corrected the bug for MiMicSDK.
Dependents: MbedFileServer_1768MiniDK2 RedWireBridge IssueDebug_gcc MiMicRemoteMCU-for-Mbed ... more
Fork of SDFileSystem by
FATFileSystem/ChaN/diskio.cpp@9:b2ca0e66c1f7, 2013-11-12 (annotated)
- Committer:
- nyatla
- Date:
- Tue Nov 12 03:41:14 2013 +0000
- Revision:
- 9:b2ca0e66c1f7
- Parent:
- 8:22ce3449b224
fix warning.;
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
nyatla | 5:2c7b6bd5b079 | 1 | /*-----------------------------------------------------------------------*/ |
nyatla | 5:2c7b6bd5b079 | 2 | /* Low level disk I/O module skeleton for FatFs (C)ChaN, 2007 */ |
nyatla | 5:2c7b6bd5b079 | 3 | /*-----------------------------------------------------------------------*/ |
nyatla | 5:2c7b6bd5b079 | 4 | /* This is a stub disk I/O module that acts as front end of the existing */ |
nyatla | 5:2c7b6bd5b079 | 5 | /* disk I/O modules and attach it to FatFs module with common interface. */ |
nyatla | 5:2c7b6bd5b079 | 6 | /*-----------------------------------------------------------------------*/ |
nyatla | 5:2c7b6bd5b079 | 7 | #include "ffconf.h" |
nyatla | 5:2c7b6bd5b079 | 8 | #include "diskio.h" |
nyatla | 5:2c7b6bd5b079 | 9 | |
nyatla | 5:2c7b6bd5b079 | 10 | #include "FATFileSystem.h" |
nyatla | 5:2c7b6bd5b079 | 11 | |
nyatla | 7:5429e81addde | 12 | |
nyatla | 5:2c7b6bd5b079 | 13 | using namespace mbed; |
nyatla | 5:2c7b6bd5b079 | 14 | |
nyatla | 5:2c7b6bd5b079 | 15 | DSTATUS disk_initialize ( |
nyatla | 5:2c7b6bd5b079 | 16 | BYTE drv /* Physical drive nmuber (0..) */ |
nyatla | 5:2c7b6bd5b079 | 17 | ) |
nyatla | 5:2c7b6bd5b079 | 18 | { |
nyatla | 5:2c7b6bd5b079 | 19 | return (DSTATUS)FATFileSystem::_ffs[drv]->disk_initialize(); |
nyatla | 5:2c7b6bd5b079 | 20 | } |
nyatla | 5:2c7b6bd5b079 | 21 | |
nyatla | 5:2c7b6bd5b079 | 22 | DSTATUS disk_status ( |
nyatla | 5:2c7b6bd5b079 | 23 | BYTE drv /* Physical drive nmuber (0..) */ |
nyatla | 5:2c7b6bd5b079 | 24 | ) |
nyatla | 5:2c7b6bd5b079 | 25 | { |
nyatla | 5:2c7b6bd5b079 | 26 | return (DSTATUS)FATFileSystem::_ffs[drv]->disk_status(); |
nyatla | 5:2c7b6bd5b079 | 27 | } |
nyatla | 5:2c7b6bd5b079 | 28 | |
nyatla | 5:2c7b6bd5b079 | 29 | DRESULT disk_read ( |
nyatla | 5:2c7b6bd5b079 | 30 | BYTE drv, /* Physical drive nmuber (0..) */ |
nyatla | 5:2c7b6bd5b079 | 31 | BYTE *buff, /* Data buffer to store read data */ |
nyatla | 5:2c7b6bd5b079 | 32 | DWORD sector, /* Sector address (LBA) */ |
nyatla | 5:2c7b6bd5b079 | 33 | BYTE count /* Number of sectors to read (1..255) */ |
nyatla | 5:2c7b6bd5b079 | 34 | ) |
nyatla | 5:2c7b6bd5b079 | 35 | { |
nyatla | 5:2c7b6bd5b079 | 36 | for(DWORD s=sector; s<sector+count; s++) { |
nyatla | 5:2c7b6bd5b079 | 37 | int res = FATFileSystem::_ffs[drv]->disk_read((uint8_t*)buff, s); |
nyatla | 5:2c7b6bd5b079 | 38 | if(res) { |
nyatla | 5:2c7b6bd5b079 | 39 | return RES_PARERR; |
nyatla | 5:2c7b6bd5b079 | 40 | } |
nyatla | 5:2c7b6bd5b079 | 41 | buff += 512; |
nyatla | 5:2c7b6bd5b079 | 42 | } |
nyatla | 5:2c7b6bd5b079 | 43 | return RES_OK; |
nyatla | 5:2c7b6bd5b079 | 44 | } |
nyatla | 5:2c7b6bd5b079 | 45 | |
nyatla | 5:2c7b6bd5b079 | 46 | #if _READONLY == 0 |
nyatla | 5:2c7b6bd5b079 | 47 | DRESULT disk_write ( |
nyatla | 5:2c7b6bd5b079 | 48 | BYTE drv, /* Physical drive nmuber (0..) */ |
nyatla | 5:2c7b6bd5b079 | 49 | const BYTE *buff, /* Data to be written */ |
nyatla | 5:2c7b6bd5b079 | 50 | DWORD sector, /* Sector address (LBA) */ |
nyatla | 5:2c7b6bd5b079 | 51 | BYTE count /* Number of sectors to write (1..255) */ |
nyatla | 5:2c7b6bd5b079 | 52 | ) |
nyatla | 5:2c7b6bd5b079 | 53 | { |
nyatla | 5:2c7b6bd5b079 | 54 | for(DWORD s = sector; s < sector + count; s++) { |
nyatla | 5:2c7b6bd5b079 | 55 | int res = FATFileSystem::_ffs[drv]->disk_write((uint8_t*)buff, s); |
nyatla | 5:2c7b6bd5b079 | 56 | if(res) { |
nyatla | 5:2c7b6bd5b079 | 57 | return RES_PARERR; |
nyatla | 5:2c7b6bd5b079 | 58 | } |
nyatla | 5:2c7b6bd5b079 | 59 | buff += 512; |
nyatla | 5:2c7b6bd5b079 | 60 | } |
nyatla | 5:2c7b6bd5b079 | 61 | return RES_OK; |
nyatla | 5:2c7b6bd5b079 | 62 | } |
nyatla | 5:2c7b6bd5b079 | 63 | #endif /* _READONLY */ |
nyatla | 5:2c7b6bd5b079 | 64 | |
nyatla | 5:2c7b6bd5b079 | 65 | DRESULT disk_ioctl ( |
nyatla | 5:2c7b6bd5b079 | 66 | BYTE drv, /* Physical drive nmuber (0..) */ |
nyatla | 5:2c7b6bd5b079 | 67 | BYTE ctrl, /* Control code */ |
nyatla | 5:2c7b6bd5b079 | 68 | void *buff /* Buffer to send/receive control data */ |
nyatla | 5:2c7b6bd5b079 | 69 | ) |
nyatla | 5:2c7b6bd5b079 | 70 | { |
nyatla | 5:2c7b6bd5b079 | 71 | switch(ctrl) { |
nyatla | 5:2c7b6bd5b079 | 72 | case CTRL_SYNC: |
nyatla | 5:2c7b6bd5b079 | 73 | if(FATFileSystem::_ffs[drv] == NULL) { |
nyatla | 5:2c7b6bd5b079 | 74 | return RES_NOTRDY; |
nyatla | 5:2c7b6bd5b079 | 75 | } else if(FATFileSystem::_ffs[drv]->disk_sync()) { |
nyatla | 5:2c7b6bd5b079 | 76 | return RES_ERROR; |
nyatla | 5:2c7b6bd5b079 | 77 | } |
nyatla | 5:2c7b6bd5b079 | 78 | return RES_OK; |
nyatla | 5:2c7b6bd5b079 | 79 | case GET_SECTOR_COUNT: |
nyatla | 5:2c7b6bd5b079 | 80 | if(FATFileSystem::_ffs[drv] == NULL) { |
nyatla | 5:2c7b6bd5b079 | 81 | return RES_NOTRDY; |
nyatla | 5:2c7b6bd5b079 | 82 | } else { |
nyatla | 5:2c7b6bd5b079 | 83 | DWORD res = FATFileSystem::_ffs[drv]->disk_sectors(); |
nyatla | 5:2c7b6bd5b079 | 84 | if(res > 0) { |
nyatla | 5:2c7b6bd5b079 | 85 | *((DWORD*)buff) = res; // minimum allowed |
nyatla | 5:2c7b6bd5b079 | 86 | return RES_OK; |
nyatla | 5:2c7b6bd5b079 | 87 | } else { |
nyatla | 5:2c7b6bd5b079 | 88 | return RES_ERROR; |
nyatla | 5:2c7b6bd5b079 | 89 | } |
nyatla | 5:2c7b6bd5b079 | 90 | } |
nyatla | 5:2c7b6bd5b079 | 91 | case GET_BLOCK_SIZE: |
nyatla | 5:2c7b6bd5b079 | 92 | *((DWORD*)buff) = 1; // default when not known |
nyatla | 5:2c7b6bd5b079 | 93 | return RES_OK; |
nyatla | 5:2c7b6bd5b079 | 94 | |
nyatla | 5:2c7b6bd5b079 | 95 | } |
nyatla | 5:2c7b6bd5b079 | 96 | return RES_PARERR; |
nyatla | 5:2c7b6bd5b079 | 97 | } |