161 lines
5.0 KiB
C
161 lines
5.0 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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/* Portions COPYRIGHT 2015 STMicroelectronics */
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/* Portions Copyright (C) 2014, ChaN, all right reserved */
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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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******************************************************************************
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* @file diskio.c
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* @author MCD Application Team
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* @version V1.3.0
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* @date 08-May-2015
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* @brief FatFs low level disk I/O module.
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******************************************************************************
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* @attention
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*
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* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
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* You may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.st.com/software_license_agreement_liberty_v2
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "diskio.h"
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#include "ff_gen_drv.h"
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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extern Disk_drvTypeDef disk;
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/* Private function prototypes -----------------------------------------------*/
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/* Private functions ---------------------------------------------------------*/
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/**
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* @brief Gets Disk Status
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* @param pdrv: Physical drive number (0..)
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* @retval DSTATUS: Operation 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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stat = disk.drv[pdrv]->disk_status(disk.lun[pdrv]);
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return stat;
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}
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/**
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* @brief Initializes a Drive
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* @param pdrv: Physical drive number (0..)
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* @retval DSTATUS: Operation status
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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 = RES_OK;
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if(disk.is_initialized[pdrv] == 0)
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{
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disk.is_initialized[pdrv] = 1;
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stat = disk.drv[pdrv]->disk_initialize(disk.lun[pdrv]);
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}
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return stat;
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}
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/**
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* @brief Reads Sector(s)
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* @param pdrv: Physical drive number (0..)
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* @param *buff: Data buffer to store read data
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* @param sector: Sector address (LBA)
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* @param count: Number of sectors to read (1..128)
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* @retval DRESULT: Operation result
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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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res = disk.drv[pdrv]->disk_read(disk.lun[pdrv], buff, sector, count);
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return res;
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}
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/**
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* @brief Writes Sector(s)
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* @param pdrv: Physical drive number (0..)
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* @param *buff: Data to be written
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* @param sector: Sector address (LBA)
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* @param count: Number of sectors to write (1..128)
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* @retval DRESULT: Operation result
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*/
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#if _USE_WRITE == 1
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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;
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res = disk.drv[pdrv]->disk_write(disk.lun[pdrv], buff, sector, count);
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return res;
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}
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#endif /* _USE_WRITE == 1 */
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/**
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* @brief I/O control operation
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* @param pdrv: Physical drive number (0..)
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* @param cmd: Control code
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* @param *buff: Buffer to send/receive control data
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* @retval DRESULT: Operation result
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*/
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#if _USE_IOCTL == 1
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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;
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res = disk.drv[pdrv]->disk_ioctl(disk.lun[pdrv], cmd, buff);
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return res;
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}
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#endif /* _USE_IOCTL == 1 */
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/**
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* @brief Gets Time from RTC
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* @param None
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* @retval Time in DWORD
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*/
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__weak DWORD get_fattime (void)
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{
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return 0;
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}
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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