138 lines
4.4 KiB
C
138 lines
4.4 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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/*----------------------------------------------------------------------------/
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/ FatFs - Generic FAT file system module R0.12a /
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/-----------------------------------------------------------------------------/
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/
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/ Copyright (C) 2016, ChaN, all right reserved.
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/
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/ FatFs module is an open source software. Redistribution and use of FatFs in
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/ source and binary forms, with or without modification, are permitted provided
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/ that the following condition is met:
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/ 1. Redistributions of source code must retain the above copyright notice,
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/ this condition and the following disclaimer.
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/
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/ This software is provided by the copyright holder and contributors "AS IS"
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/ and any warranties related to this software are DISCLAIMED.
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/ The copyright owner or contributors be NOT LIABLE for any damages caused
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/ by use of this software.
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/----------------------------------------------------------------------------*/
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#include <fs/fat/diskio.h> /* FatFs lower layer API */
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#include <misc/printk.h>
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#include <stdio.h>
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/* Definitions of physical drive number for each drive */
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#define SPI 0
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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;
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return STA_NOINIT;
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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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stat &= ~STA_NOINIT;
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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;
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//int result;
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return RES_PARERR;
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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_OK;
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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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printf("disk_ioctl: %d\n", (int )cmd);
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switch (cmd) {
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case CTRL_SYNC : /* Wait for end of internal write process of the drive */
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return RES_OK;
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break;
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case GET_SECTOR_COUNT :
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*(DWORD*)buff = 4096; //FLASH_SIZE / FLASH_SECTOR_SIZE;
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return RES_OK;
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break;
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case GET_BLOCK_SIZE :
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*(DWORD*)buff = 32768; //FLASH_BLOCK32K_SIZE;
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return RES_OK;
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break;
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case CTRL_TRIM :
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break;
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}
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return RES_PARERR;
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}
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#endif
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