/*-----------------------------------------------------------------------*/ /* 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 "diskio.h" /* FatFs lower layer API */ #include "usbdisk.h" /* Example: USB drive control */ #include "atadrive.h" /* Example: ATA drive control */ #include "sdcard.h" /* Example: MMC/SDC contorl */ /* Definitions of physical drive number for each drive */ #define ATA 0 /* Example: Map ATA drive to drive number 0 */ #define MMC 1 /* Example: Map MMC/SD card to drive number 1 */ #define USB 2 /* Example: Map USB drive to drive number 2 */ /*-----------------------------------------------------------------------*/ /* Get Drive Status */ /*-----------------------------------------------------------------------*/ DSTATUS disk_status ( BYTE pdrv /* Physical drive nmuber to identify the drive */ ) { DSTATUS stat; int result; switch (pdrv) { case ATA : result = ATA_disk_status(); // translate the reslut code here return stat; case MMC : result = MMC_disk_status(); // translate the reslut code here return stat; case USB : result = USB_disk_status(); // translate the reslut code here return stat; } return STA_NOINIT; } /*-----------------------------------------------------------------------*/ /* Inidialize a Drive */ /*-----------------------------------------------------------------------*/ DSTATUS disk_initialize ( BYTE pdrv /* Physical drive nmuber to identify the drive */ ) { DSTATUS stat; int result; switch (pdrv) { case ATA : result = ATA_disk_initialize(); // translate the reslut code here return stat; case MMC : result = MMC_disk_initialize(); // translate the reslut code here return stat; case USB : result = USB_disk_initialize(); // translate the reslut code here return stat; } 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 */ ) { DRESULT res; int result; switch (pdrv) { case ATA : // translate the arguments here result = ATA_disk_read(buff, sector, count); // translate the reslut code here return res; case MMC : // translate the arguments here result = MMC_disk_read(buff, sector, count); // translate the reslut code here return res; case USB : // translate the arguments here result = USB_disk_read(buff, sector, count); // translate the reslut code here return res; } 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 */ ) { DRESULT res; int result; switch (pdrv) { case ATA : // translate the arguments here result = ATA_disk_write(buff, sector, count); // translate the reslut code here return res; case MMC : // translate the arguments here result = MMC_disk_write(buff, sector, count); // translate the reslut code here return res; case USB : // translate the arguments here result = USB_disk_write(buff, sector, count); // translate the reslut code here return res; } 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 */ ) { DRESULT res; int result; switch (pdrv) { case ATA : // Process of the command for the ATA drive return res; case MMC : // Process of the command for the MMC/SD card return res; case USB : // Process of the command the USB drive return res; } return RES_PARERR; } #endif