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Counter
Dependencies: EthernetInterface NTPClient SDFileSystem TextLCD WebSocketClient mbed-rtos mbed Socket lwip-eth lwip-sys lwip FATFileSystem
Diff: SDFileSystem/FATFileSystem/ChaN/diskio.cpp
- Revision:
- 0:ecaf3e593122
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SDFileSystem/FATFileSystem/ChaN/diskio.cpp Mon Feb 29 18:59:15 2016 +0000 @@ -0,0 +1,104 @@ +/*-----------------------------------------------------------------------*/ +/* Low level disk I/O module skeleton for FatFs (C)ChaN, 2007 */ +/*-----------------------------------------------------------------------*/ +/* This is a stub disk I/O module that acts as front end of the existing */ +/* disk I/O modules and attach it to FatFs module with common interface. */ +/*-----------------------------------------------------------------------*/ +#include "ffconf.h" +#include "diskio.h" + +#include "mbed_debug.h" +#include "FATFileSystem.h" + +using namespace mbed; + +DSTATUS disk_initialize ( + BYTE drv /* Physical drive nmuber (0..) */ +) +{ + debug_if(FFS_DBG, "disk_initialize on drv [%d]\n", drv); + return (DSTATUS)FATFileSystem::_ffs[drv]->disk_initialize(); +} + +DSTATUS disk_status ( + BYTE drv /* Physical drive nmuber (0..) */ +) +{ + debug_if(FFS_DBG, "disk_status on drv [%d]\n", drv); + return (DSTATUS)FATFileSystem::_ffs[drv]->disk_status(); +} + +DRESULT disk_read ( + BYTE drv, /* Physical drive nmuber (0..) */ + BYTE *buff, /* Data buffer to store read data */ + DWORD sector, /* Sector address (LBA) */ + BYTE count /* Number of sectors to read (1..255) */ +) +{ + debug_if(FFS_DBG, "disk_read(sector %d, count %d) on drv [%d]\n", sector, count, drv); + for(DWORD s=sector; s<sector+count; s++) { + debug_if(FFS_DBG, " disk_read(sector %d)\n", s); + int res = FATFileSystem::_ffs[drv]->disk_read((uint8_t*)buff, s); + if(res) { + return RES_PARERR; + } + buff += 512; + } + return RES_OK; +} + +#if _READONLY == 0 +DRESULT disk_write ( + BYTE drv, /* Physical drive nmuber (0..) */ + const BYTE *buff, /* Data to be written */ + DWORD sector, /* Sector address (LBA) */ + BYTE count /* Number of sectors to write (1..255) */ +) +{ + debug_if(FFS_DBG, "disk_write(sector %d, count %d) on drv [%d]\n", sector, count, drv); + for(DWORD s = sector; s < sector + count; s++) { + debug_if(FFS_DBG, " disk_write(sector %d)\n", s); + int res = FATFileSystem::_ffs[drv]->disk_write((uint8_t*)buff, s); + if(res) { + return RES_PARERR; + } + buff += 512; + } + return RES_OK; +} +#endif /* _READONLY */ + +DRESULT disk_ioctl ( + BYTE drv, /* Physical drive nmuber (0..) */ + BYTE ctrl, /* Control code */ + void *buff /* Buffer to send/receive control data */ +) +{ + debug_if(FFS_DBG, "disk_ioctl(%d)\n", ctrl); + switch(ctrl) { + case CTRL_SYNC: + if(FATFileSystem::_ffs[drv] == NULL) { + return RES_NOTRDY; + } else if(FATFileSystem::_ffs[drv]->disk_sync()) { + return RES_ERROR; + } + return RES_OK; + case GET_SECTOR_COUNT: + if(FATFileSystem::_ffs[drv] == NULL) { + return RES_NOTRDY; + } else { + DWORD res = FATFileSystem::_ffs[drv]->disk_sectors(); + if(res > 0) { + *((DWORD*)buff) = res; // minimum allowed + return RES_OK; + } else { + return RES_ERROR; + } + } + case GET_BLOCK_SIZE: + *((DWORD*)buff) = 1; // default when not known + return RES_OK; + + } + return RES_PARERR; +}