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FatFs Module Source Files R0.13c | ||
FatFs Module Source Files R0.15 | ||
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FILES | ||
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/*-----------------------------------------------------------------------*/ | ||
/* 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. */ | ||
/*-----------------------------------------------------------------------*/ | ||
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#include "diskio.h" /* FatFs lower layer API */ | ||
#include "sdmmc/sdmmc.h" | ||
#include "../crypto.h" | ||
#include "../i2c.h" | ||
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/* Definitions of physical drive number for each media */ | ||
#define SDCARD 0 | ||
#define CTRNAND 1 | ||
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/*-----------------------------------------------------------------------*/ | ||
/* Get Drive Status */ | ||
/*-----------------------------------------------------------------------*/ | ||
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DSTATUS disk_status ( | ||
__attribute__((unused)) | ||
BYTE pdrv /* Physical drive nmuber to identify the drive */ | ||
) | ||
{ | ||
return RES_OK; | ||
} | ||
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/*-----------------------------------------------------------------------*/ | ||
/* Inidialize a Drive */ | ||
/*-----------------------------------------------------------------------*/ | ||
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DSTATUS disk_initialize ( | ||
BYTE pdrv /* Physical drive nmuber to identify the drive */ | ||
) | ||
{ | ||
static u32 sdmmcInitResult = 4; | ||
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if(sdmmcInitResult == 4) sdmmcInitResult = sdmmc_sdcard_init(); | ||
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return ((pdrv == SDCARD && !(sdmmcInitResult & 2)) || | ||
(pdrv == CTRNAND && !(sdmmcInitResult & 1) && !ctrNandInit())) ? 0 : STA_NOINIT; | ||
} | ||
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/*-----------------------------------------------------------------------*/ | ||
/* Read Sector(s) */ | ||
/*-----------------------------------------------------------------------*/ | ||
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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; | ||
} | ||
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/*-----------------------------------------------------------------------*/ | ||
/* Write Sector(s) */ | ||
/*-----------------------------------------------------------------------*/ | ||
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#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 | ||
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/*-----------------------------------------------------------------------*/ | ||
/* Miscellaneous Functions */ | ||
/*-----------------------------------------------------------------------*/ | ||
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#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 | ||
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// From GodMode9 | ||
#define BCDVALID(b) (((b)<=0x99)&&(((b)&0xF)<=0x9)&&((((b)>>4)&0xF)<=0x9)) | ||
#define BCD2NUM(b) (BCDVALID(b) ? (((b)&0xF)+((((b)>>4)&0xF)*10)) : 0xFF) | ||
#define NUM2BCD(n) ((n<99) ? (((n/10)*0x10)|(n%10)) : 0x99) | ||
#define DSTIMEGET(bcd,n) (BCD2NUM((bcd)->n)) | ||
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// see: http://3dbrew.org/wiki/I2C_Registers#Device_3 (register 30) | ||
typedef struct DsTime { | ||
u8 bcd_s; | ||
u8 bcd_m; | ||
u8 bcd_h; | ||
u8 weekday; | ||
u8 bcd_D; | ||
u8 bcd_M; | ||
u8 bcd_Y; | ||
u8 leap_count; | ||
} DsTime; | ||
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/*-----------------------------------------------------------------------*/ | ||
/* Get current FAT time */ | ||
/*-----------------------------------------------------------------------*/ | ||
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DWORD get_fattime( void ) { | ||
DsTime dstime; | ||
I2C_readRegBuf(I2C_DEV_MCU, 0x30, (u8 *)&dstime, sizeof(DsTime)); | ||
DWORD fattime = | ||
((DSTIMEGET(&dstime, bcd_s)&0x3F) >> 1 ) | | ||
((DSTIMEGET(&dstime, bcd_m)&0x3F) << 5 ) | | ||
((DSTIMEGET(&dstime, bcd_h)&0x3F) << 11) | | ||
((DSTIMEGET(&dstime, bcd_D)&0x1F) << 16) | | ||
((DSTIMEGET(&dstime, bcd_M)&0x0F) << 21) | | ||
(((DSTIMEGET(&dstime, bcd_Y)+(2000-1980))&0x7F) << 25); | ||
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return fattime; | ||
} | ||
/*-----------------------------------------------------------------------*/ | ||
/* Low level disk I/O module SKELETON for FatFs (C)ChaN, 2019 */ | ||
/*-----------------------------------------------------------------------*/ | ||
/* 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. */ | ||
/*-----------------------------------------------------------------------*/ | ||
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#include "ff.h" /* Obtains integer types */ | ||
#include "diskio.h" /* Declarations of disk functions */ | ||
#include "sdmmc/sdmmc.h" | ||
#include "../crypto.h" | ||
#include "../i2c.h" | ||
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/* Definitions of physical drive number for each drive */ | ||
#define SDCARD 0 | ||
#define CTRNAND 1 | ||
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/*-----------------------------------------------------------------------*/ | ||
/* Get Drive Status */ | ||
/*-----------------------------------------------------------------------*/ | ||
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DSTATUS disk_status ( | ||
BYTE pdrv /* Physical drive nmuber to identify the drive */ | ||
) | ||
{ | ||
(void)pdrv; | ||
return RES_OK; | ||
} | ||
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/*-----------------------------------------------------------------------*/ | ||
/* Inidialize a Drive */ | ||
/*-----------------------------------------------------------------------*/ | ||
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DSTATUS disk_initialize ( | ||
BYTE pdrv /* Physical drive nmuber to identify the drive */ | ||
) | ||
{ | ||
static u32 sdmmcInitResult = 4; | ||
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if(sdmmcInitResult == 4) sdmmcInitResult = sdmmc_sdcard_init(); | ||
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return ((pdrv == SDCARD && !(sdmmcInitResult & 2)) || | ||
(pdrv == CTRNAND && !(sdmmcInitResult & 1) && !ctrNandInit())) ? 0 : STA_NOINIT; | ||
} | ||
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/*-----------------------------------------------------------------------*/ | ||
/* Read Sector(s) */ | ||
/*-----------------------------------------------------------------------*/ | ||
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DRESULT disk_read ( | ||
BYTE pdrv, /* Physical drive nmuber to identify the drive */ | ||
BYTE *buff, /* Data buffer to store read data */ | ||
LBA_t sector, /* Start sector 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; | ||
} | ||
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/*-----------------------------------------------------------------------*/ | ||
/* Write Sector(s) */ | ||
/*-----------------------------------------------------------------------*/ | ||
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#if FF_FS_READONLY == 0 | ||
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DRESULT disk_write ( | ||
BYTE pdrv, /* Physical drive nmuber to identify the drive */ | ||
const BYTE *buff, /* Data to be written */ | ||
LBA_t sector, /* Start sector 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 | ||
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/*-----------------------------------------------------------------------*/ | ||
/* Miscellaneous Functions */ | ||
/*-----------------------------------------------------------------------*/ | ||
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DRESULT disk_ioctl ( | ||
BYTE pdrv, /* Physical drive nmuber (0..) */ | ||
BYTE cmd, /* Control code */ | ||
void *buff /* Buffer to send/receive control data */ | ||
) | ||
{ | ||
(void)pdrv; | ||
(void)buff; | ||
return cmd == CTRL_SYNC ? RES_OK : RES_PARERR; | ||
} | ||
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// From GodMode9 | ||
#define BCDVALID(b) (((b)<=0x99)&&(((b)&0xF)<=0x9)&&((((b)>>4)&0xF)<=0x9)) | ||
#define BCD2NUM(b) (BCDVALID(b) ? (((b)&0xF)+((((b)>>4)&0xF)*10)) : 0xFF) | ||
#define NUM2BCD(n) ((n<99) ? (((n/10)*0x10)|(n%10)) : 0x99) | ||
#define DSTIMEGET(bcd,n) (BCD2NUM((bcd)->n)) | ||
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// see: http://3dbrew.org/wiki/I2C_Registers#Device_3 (register 30) | ||
typedef struct DsTime { | ||
u8 bcd_s; | ||
u8 bcd_m; | ||
u8 bcd_h; | ||
u8 weekday; | ||
u8 bcd_D; | ||
u8 bcd_M; | ||
u8 bcd_Y; | ||
u8 leap_count; | ||
} DsTime; | ||
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/*-----------------------------------------------------------------------*/ | ||
/* Get current FAT time */ | ||
/*-----------------------------------------------------------------------*/ | ||
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DWORD get_fattime( void ) { | ||
DsTime dstime; | ||
I2C_readRegBuf(I2C_DEV_MCU, 0x30, (u8 *)&dstime, sizeof(DsTime)); | ||
DWORD fattime = | ||
((DSTIMEGET(&dstime, bcd_s)&0x3F) >> 1 ) | | ||
((DSTIMEGET(&dstime, bcd_m)&0x3F) << 5 ) | | ||
((DSTIMEGET(&dstime, bcd_h)&0x3F) << 11) | | ||
((DSTIMEGET(&dstime, bcd_D)&0x1F) << 16) | | ||
((DSTIMEGET(&dstime, bcd_M)&0x0F) << 21) | | ||
(((DSTIMEGET(&dstime, bcd_Y)+(2000-1980))&0x7F) << 25); | ||
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return fattime; | ||
} |
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