95ce2328
 李外
完成USB移植，测试正常，
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/*!
\file diskio.c
\brief Low level disk interface driver
\version 2021-05-20, V1.0.0, firmware for GD32 USBFS
*/
/*
Copyright (c) 2021, GigaDevice Semiconductor Inc.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its contributors
may be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
*/
/* Includes ------------------------------------------------------------------*/
#include "diskio.h"
#include "ff_gen_drv.h"
#if defined ( __GNUC__ )
#ifndef __weak
#define __weak __attribute__((weak))
#endif
#endif
extern Disk_drvTypeDef disk;
/*!
\brief Gets Disk Status
\param[in] pdrv: Physical drive number (0..)
\param[out] none
\retval DSTATUS: Operation status
*/
DSTATUS disk_status (
BYTE pdrv /* Physical drive number to identify the drive */
)
{
DSTATUS stat;
stat = disk.drv[pdrv]->disk_status(disk.lun[pdrv]);
return stat;
}
/*!
\brief Initializes a Drive
\param[in] pdrv: Physical drive number (0..)
\param[out] none
\retval DSTATUS: Operation status
*/
DSTATUS disk_initialize (
BYTE pdrv /* Physical drive nmuber to identify the drive */
)
{
DSTATUS stat = RES_OK;
if (disk.is_initialized[pdrv] == 0) {
disk.is_initialized[pdrv] = 1;
stat = disk.drv[pdrv]->disk_initialize(disk.lun[pdrv]);
}
return stat;
}
/*!
\brief Reads Sector(s)
\param[in] pdrv: Physical drive number (0..)
\param[in] buff: Data buffer to store read data
\param[in] sector: Sector address (LBA)
\param[in] count: Number of sectors to write (1..128)
\param[out] none
\retval DRESULT: Operation result
*/
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 */
)
{
DRESULT res;
res = disk.drv[pdrv]->disk_read(disk.lun[pdrv], buff, sector, count);
return res;
}
/*!
\brief Writes Sector(s)
\param[in] pdrv: Physical drive number (0..)
\param[in] buff: Data to be written
\param[in] sector: Sector address (LBA)
\param[in] count: Number of sectors to write (1..128)
\param[out] none
\retval DRESULT: Operation result
*/
#if _USE_WRITE == 1
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 */
)
{
DRESULT res;
res = disk.drv[pdrv]->disk_write(disk.lun[pdrv], buff, sector, count);
return res;
}
#endif /* _USE_WRITE == 1 */
/*!
\brief I/O control operation
\param[in] pdrv: Physical drive number (0..)
\param[in] cmd: Control code
\param[in] buff: Buffer to send/receive control data
\param[out] none
\retval DRESULT: Operation result
*/
#if _USE_IOCTL == 1
DRESULT disk_ioctl (
BYTE pdrv, /* Physical drive nmuber (0..) */
BYTE cmd, /* Control code */
void *buff /* Buffer to send/receive control data */
)
{
DRESULT res;
res = disk.drv[pdrv]->disk_ioctl(disk.lun[pdrv], cmd, buff);
return res;
}
#endif /* _USE_IOCTL == 1 */
/*!
\brief Gets Time from RTC
\param[in] none
\param[out] none
\retval Time in DWORD
*/
__weak DWORD get_fattime (void)
{
return 0;
}
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