mirror of
https://github.com/rtlduino/RTL8710AF_GCC.git
synced 2024-11-28 09:10:28 +00:00
142 lines
4.1 KiB
C
142 lines
4.1 KiB
C
/*-----------------------------------------------------------------------*/
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/* Low level disk I/O module skeleton for FatFs (C)ChaN, 2014 */
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/*-----------------------------------------------------------------------*/
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/* If a working storage control module is available, it should be */
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/* attached to the FatFs via a glue function rather than modifying it. */
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/* This is an example of glue functions to attach various exsisting */
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/* storage control modules to the FatFs module with a defined API. */
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/*-----------------------------------------------------------------------*/
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#include "diskio.h" /* FatFs lower layer API */
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#include "fatfs_ext/inc/ff_driver.h"
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/*-----------------------------------------------------------------------*/
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/* Get Drive Status */
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/*-----------------------------------------------------------------------*/
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DSTATUS disk_status (
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BYTE pdrv /* Physical drive nmuber to identify the drive */
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)
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{
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DSTATUS stat = STA_NODISK;
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if (disk.nbr <= 0 || pdrv < 0 || pdrv >= disk.nbr)
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return stat;
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stat = disk.drv[pdrv]->disk_status();
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return stat;
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}
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/*-----------------------------------------------------------------------*/
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/* Inidialize a Drive */
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/*-----------------------------------------------------------------------*/
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DSTATUS disk_initialize (
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BYTE pdrv /* Physical drive nmuber to identify the drive */
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)
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{
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DSTATUS stat = STA_NOINIT;
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if (disk.nbr <= 0 || pdrv < 0 || pdrv >= disk.nbr)
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return stat;
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stat = disk.drv[pdrv]->disk_initialize();
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return stat;
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}
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/*-----------------------------------------------------------------------*/
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/* Read Sector(s) */
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/*-----------------------------------------------------------------------*/
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DRESULT disk_read (
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BYTE pdrv, /* Physical drive nmuber to identify the drive */
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BYTE *buff, /* Data buffer to store read data */
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DWORD sector, /* Sector address in LBA */
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UINT count /* Number of sectors to read */
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)
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{
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DRESULT res = RES_PARERR;
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if (pdrv < 0 || pdrv >= disk.nbr || buff == (void*)0 || count <= 0)
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return RES_PARERR; // Return if the parameter is invalid
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if(disk.nbr <= 0)
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return RES_NOTRDY;
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res = disk.drv[pdrv]->disk_read(buff, sector, count);
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return res;
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}
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/*-----------------------------------------------------------------------*/
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/* Write Sector(s) */
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/*-----------------------------------------------------------------------*/
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#if _USE_WRITE
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DRESULT disk_write (
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BYTE pdrv, /* Physical drive nmuber to identify the drive */
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const BYTE *buff, /* Data to be written */
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DWORD sector, /* Sector address in LBA */
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UINT count /* Number of sectors to write */
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)
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{
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DRESULT res = RES_PARERR;
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int index = 0;
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if (pdrv < 0 || pdrv >= disk.nbr || buff == (void*)0 || count <= 0)
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return RES_PARERR; // Return if the parameter is invalid
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if(disk.nbr <= 0)
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return RES_NOTRDY;
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res = disk.drv[pdrv]->disk_write(buff, sector, count);
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return res;
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}
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#endif
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/*-----------------------------------------------------------------------*/
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/* Miscellaneous Functions */
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/*-----------------------------------------------------------------------*/
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#if _USE_IOCTL
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DRESULT disk_ioctl (
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BYTE pdrv, /* Physical drive nmuber (0..) */
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BYTE cmd, /* Control code */
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void *buff /* Buffer to send/receive control data */
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)
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{
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DRESULT res = RES_PARERR;
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if (pdrv < 0 || pdrv >= disk.nbr)
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return RES_PARERR; // Return if the parameter is invalid
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if(disk.nbr <= 0)
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return RES_NOTRDY;
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res = disk.drv[pdrv]->disk_ioctl(cmd, buff);
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return res;
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}
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#endif
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DWORD get_fattime (void)
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{
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DWORD time_abs;
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time_abs = ((DWORD)(2016 - 1980) << 25) /* Fixed to Feb. 2, 2016 */
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| ((DWORD)2 << 21)
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| ((DWORD)2 << 16)
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| ((DWORD)0 << 11)
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| ((DWORD)0 << 5)
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| ((DWORD)0 >> 1);
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return time_abs;
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}
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