01c414a180
The FAT tables are now always aligned 1MB which can increase the FAT traversing speed. Additionally, always aligning the FAT tables to minimum 16KB fixes a case where PrFILE2 SAFE could be disabled because of unaligned FAT.
71 lines
2.1 KiB
C
71 lines
2.1 KiB
C
/*-----------------------------------------------------------------------/
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/ Low level disk interface modlue include file (C)ChaN, 2014 /
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/-----------------------------------------------------------------------*/
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#ifndef _DISKIO_DEFINED
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#define _DISKIO_DEFINED
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <utils/types.h>
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/* Status of Disk Functions */
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typedef BYTE DSTATUS;
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/* Results of Disk Functions */
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typedef enum {
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RES_OK = 0, /* 0: Successful */
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RES_ERROR, /* 1: R/W Error */
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RES_WRPRT, /* 2: Write Protected */
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RES_NOTRDY, /* 3: Not Ready */
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RES_PARERR /* 4: Invalid Parameter */
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} DRESULT;
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typedef enum {
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DRIVE_SD = 0,
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DRIVE_RAM = 1,
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DRIVE_EMMC = 2,
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DRIVE_BIS = 3,
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DRIVE_EMU = 4
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} DDRIVE;
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/*---------------------------------------*/
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/* Prototypes for disk control functions */
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DSTATUS disk_initialize (BYTE pdrv);
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DSTATUS disk_status (BYTE pdrv);
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DRESULT disk_read (BYTE pdrv, BYTE* buff, DWORD sector, UINT count);
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DRESULT disk_write (BYTE pdrv, const BYTE* buff, DWORD sector, UINT count);
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DRESULT disk_ioctl (BYTE pdrv, BYTE cmd, void* buff);
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DRESULT disk_set_info (BYTE pdrv, BYTE cmd, void *buff);
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/* Disk Status Bits (DSTATUS) */
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#define STA_NOINIT 0x01 /* Drive not initialized */
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#define STA_NODISK 0x02 /* No medium in the drive */
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#define STA_PROTECT 0x04 /* Write protected */
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/* Command code for disk_ioctrl fucntion */
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/* Generic command (Used by FatFs) */
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#define CTRL_SYNC 0 /* Complete pending write process (needed at FF_FS_READONLY == 0) */
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#define GET_SECTOR_COUNT 1 /* Get media size (needed at FF_USE_MKFS == 1) */
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#define SET_SECTOR_COUNT 1 /* Set media size (needed at FF_USE_MKFS == 1) */
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#define GET_SECTOR_SIZE 2 /* Get sector size (needed at FF_MAX_SS != FF_MIN_SS) */
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#define GET_BLOCK_SIZE 3 /* Get erase block size (needed at FF_USE_MKFS == 1) */
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#define CTRL_TRIM 4 /* Inform device that the data on the block of sectors is no longer used (needed at FF_USE_TRIM == 1) */
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#define SET_SECTOR_OFFSET 5 /* Set media logical offset */
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#define SET_WRITE_PROTECT 6 /* Lock/Unlock media removal */
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#ifdef __cplusplus
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}
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#endif
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#endif
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