/*-----------------------------------------------------------------------*/ /* 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 "sdmmc/sdmmc.h" #include "../crypto.h" /* Definitions of physical drive number for each media */ #define SDCARD 0 #define CTRNAND 1 /*-----------------------------------------------------------------------*/ /* Get Drive Status */ /*-----------------------------------------------------------------------*/ DSTATUS disk_status ( __attribute__((unused)) BYTE pdrv /* Physical drive nmuber to identify the drive */ ) { return RES_OK; } /*-----------------------------------------------------------------------*/ /* Inidialize a Drive */ /*-----------------------------------------------------------------------*/ DSTATUS disk_initialize ( BYTE pdrv /* Physical drive nmuber to identify the drive */ ) { static u32 sdmmcInitResult = 4; if(sdmmcInitResult == 4) sdmmcInitResult = sdmmc_sdcard_init(); return ((pdrv == SDCARD && !(sdmmcInitResult & 2)) || (pdrv == CTRNAND && !(sdmmcInitResult & 1) && !ctrNandInit())) ? 0 : 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 */ ) { return ((pdrv == SDCARD && !sdmmc_sdcard_readsectors(sector, count, buff)) || (pdrv == CTRNAND && !ctrNandRead(sector, count, buff))) ? RES_OK : 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 */ ) { return ((pdrv == SDCARD && (*(vu16 *)(SDMMC_BASE + REG_SDSTATUS0) & TMIO_STAT0_WRPROTECT) != 0 && !sdmmc_sdcard_writesectors(sector, count, buff)) || (pdrv == CTRNAND && !ctrNandWrite(sector, count, buff))) ? RES_OK : RES_PARERR; } #endif /*-----------------------------------------------------------------------*/ /* Miscellaneous Functions */ /*-----------------------------------------------------------------------*/ #if _USE_IOCTL DRESULT disk_ioctl ( __attribute__((unused)) BYTE pdrv, /* Physical drive nmuber (0..) */ BYTE cmd, /* Control code */ __attribute__((unused)) void *buff /* Buffer to send/receive control data */ ) { return cmd == CTRL_SYNC ? RES_OK : RES_PARERR; } #endif