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SM-1000M/RTX5_20220316/Driver/FATFS/source/diskio.c

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20260324
2026-04-23 10:50:18 +08:00
/*-----------------------------------------------------------------------*/
/* Low level disk I/O module SKELETON for FatFs (C)ChaN, 2019 */
/*-----------------------------------------------------------------------*/
/* If a working storage control module is available, it should be */
/* attached to the FatFs via a glue function rather than modifying it. */
/* This is an example of glue functions to attach various exsisting */
/* storage control modules to the FatFs module with a defined API. */
/*-----------------------------------------------------------------------*/
#include "ff.h" /* Obtains integer types */
#include "diskio.h" /* Declarations of disk functions */
#include "SPI_SD_driver.h"
#include "diskio.h"
//#include "flash.h"
#include "spi.h"
/* Definitions of physical drive number for each drive */
#define DEV_RAM 0 /* Example: Map Ramdisk to physical drive 0 */
#define DEV_MMC 1 /* Example: Map MMC/SD card to physical drive 1 */
#define DEV_USB 2 /* Example: Map USB MSD to physical drive 2 */
/*-----------------------------------------------------------------------*/
/* Get Drive Status */
/*-----------------------------------------------------------------------*/
#define SD_CARD 0 //SD<53><44>,<2C><><EFBFBD><EFBFBD>Ϊ0
#define EX_FLASH 1 //<2F>ⲿflash,<2C><><EFBFBD><EFBFBD>Ϊ1
DSTATUS disk_status (
BYTE pdrv /* Physical drive nmuber to identify the drive */
)
{
//DSTATUS stat;
//int result;
uint8_t res=0;
switch (pdrv) {
case SD_CARD :
res = SD_Initialize();
if(res)//STM32 SPI<50><49>bug,<2C><>sd<73><64><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʧ<EFBFBD>ܵ<EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD><D6B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,<2C><><EFBFBD>ܵ<EFBFBD><DCB5><EFBFBD>SPI<50><49>д<EFBFBD>쳣
{
SD_SPI_SpeedLow();
SD_SPI_ReadWriteByte(0xff);//<2F>ṩ<EFBFBD><E1B9A9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>8<EFBFBD><38>ʱ<EFBFBD><CAB1>
SD_SPI_SpeedHigh();
}
break;
// translate the reslut code here
//return stat;
// case DEV_MMC :
// result = MMC_disk_status();
// // translate the reslut code here
// return stat;
// case DEV_USB :
// result = USB_disk_status();
// // translate the reslut code here
// return stat;
}
if(res)return STA_NOINIT;
else return 0; //<2F><>ʼ<EFBFBD><CABC><EFBFBD>ɹ<EFBFBD>
}
/*-----------------------------------------------------------------------*/
/* Inidialize a Drive */
/*-----------------------------------------------------------------------*/
DSTATUS disk_initialize (
BYTE pdrv /* Physical drive nmuber to identify the drive */
)
{
uint8_t res=0;
switch(pdrv)
{
case SD_CARD://SD<53><44>
res = SD_Initialize();//SD_Initialize()
if(res)//STM32 SPI<50><49>bug,<2C><>sd<73><64><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʧ<EFBFBD>ܵ<EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD><D6B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,<2C><><EFBFBD>ܵ<EFBFBD><DCB5><EFBFBD>SPI<50><49>д<EFBFBD>쳣
{
SD_SPI_SpeedLow();
SD_SPI_ReadWriteByte(0xff);//<2F>ṩ<EFBFBD><E1B9A9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>8<EFBFBD><38>ʱ<EFBFBD><CAB1>
SD_SPI_SpeedHigh();
}
break;
case EX_FLASH://<2F>ⲿflash
//SPI_Flash_Init();
// if(SPI_FLASH_TYPE==W25Q64)FLASH_SECTOR_COUNT=2048*6;//W25Q64
// else FLASH_SECTOR_COUNT=2048*2; //<2F><><EFBFBD><EFBFBD>
break;
default:
res=1;
}
if(res)return STA_NOINIT;
else return 0; //<2F><>ʼ<EFBFBD><CABC><EFBFBD>ɹ<EFBFBD>
}
/*-----------------------------------------------------------------------*/
/* Read Sector(s) */
/*-----------------------------------------------------------------------*/
DRESULT disk_read (
BYTE pdrv, /* Physical drive nmuber to identify the drive */
BYTE *buff, /* Data buffer to store read data */
LBA_t sector, /* Start sector in LBA */
UINT count /* Number of sectors to read */
)
{
uint8_t res=0;
if (!count)return RES_PARERR;//count<6E><74><EFBFBD>ܵ<EFBFBD><DCB5><EFBFBD>0<EFBFBD><30><EFBFBD><EFBFBD><EFBFBD>򷵻ز<F2B7B5BB><D8B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
switch(pdrv)
{
case SD_CARD://SD<53><44>
res=SD_ReadDisk(buff,sector,count);
if(res)//STM32 SPI<50><49>bug,<2C><>sd<73><64><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʧ<EFBFBD>ܵ<EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD><D6B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,<2C><><EFBFBD>ܵ<EFBFBD><DCB5><EFBFBD>SPI<50><49>д<EFBFBD>쳣
{
SD_SPI_SpeedLow();
SD_SPI_ReadWriteByte(0xff);//<2F>ṩ<EFBFBD><E1B9A9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>8<EFBFBD><38>ʱ<EFBFBD><CAB1>
SD_SPI_SpeedHigh();
}
break;
case EX_FLASH://<2F>ⲿflash
// for(;count>0;count--)
// {
// //SPI_Flash_Read(buff,sector*FLASH_SECTOR_SIZE,FLASH_SECTOR_SIZE);
// sector++;
// buff+=FLASH_SECTOR_SIZE;
// }
res=0;
break;
default:
res=1;
}
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD>SPI_SD_driver.c<>ķ<EFBFBD><C4B7><EFBFBD>ֵת<D6B5><D7AA>ff.c<>ķ<EFBFBD><C4B7><EFBFBD>ֵ
if(res==0x00)return RES_OK;
else return RES_ERROR;
}
/*-----------------------------------------------------------------------*/
/* Write Sector(s) */
/*-----------------------------------------------------------------------*/
#if FF_FS_READONLY == 0
DRESULT disk_write (
BYTE pdrv, /* Physical drive nmuber to identify the drive */
const BYTE *buff, /* Data to be written */
LBA_t sector, /* Start sector in LBA */
UINT count /* Number of sectors to write */
)
{
uint8_t res=0;
if (!count)return RES_PARERR;//count<6E><74><EFBFBD>ܵ<EFBFBD><DCB5><EFBFBD>0<EFBFBD><30><EFBFBD><EFBFBD><EFBFBD>򷵻ز<F2B7B5BB><D8B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
switch(pdrv)
{
case SD_CARD://SD<53><44>
res=SD_WriteDisk((u8*)buff,sector,count);
break;
case EX_FLASH://<2F>ⲿflash
// for(;count>0;count--)
// {
// //SPI_Flash_Write((u8*)buff,sector*FLASH_SECTOR_SIZE,FLASH_SECTOR_SIZE);
// sector++;
// buff+=FLASH_SECTOR_SIZE;
// }
// res=0;
break;
default:
res=1;
}
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ<EFBFBD><D6B5><EFBFBD><EFBFBD>SPI_SD_driver.c<>ķ<EFBFBD><C4B7><EFBFBD>ֵת<D6B5><D7AA>ff.c<>ķ<EFBFBD><C4B7><EFBFBD>ֵ
if(res == 0x00)return RES_OK;
else return RES_ERROR;
}
#endif
/*-----------------------------------------------------------------------*/
/* Miscellaneous Functions */
/*-----------------------------------------------------------------------*/
DRESULT disk_ioctl (
BYTE pdrv, /* Physical drive nmuber (0..) */
BYTE cmd, /* Control code */
void *buff /* Buffer to send/receive control data */
)
{
DRESULT res;
if(pdrv==SD_CARD)//SD<53><44>
{
switch(cmd)
{
case CTRL_SYNC:
SD_CS_ENABLE();
if(SD_WaitReady()==0)res = RES_OK;
else res = RES_ERROR;
SD_CS_DISABLE();
break;
case GET_SECTOR_SIZE:
*(WORD*)buff = 512;
res = RES_OK;
break;
case GET_BLOCK_SIZE:
*(WORD*)buff = 8;
res = RES_OK;
break;
case GET_SECTOR_COUNT:
*(DWORD*)buff = SD_GetSectorCount();
res = RES_OK;
break;
default:
res = RES_PARERR;
break;
}
}else if(pdrv==EX_FLASH) //<2F>ⲿFLASH
{
switch(cmd)
{
case CTRL_SYNC:
res = RES_OK;
break;
case GET_SECTOR_SIZE:
// *(WORD*)buff = FLASH_SECTOR_SIZE;
res = RES_OK;
break;
case GET_BLOCK_SIZE:
// *(WORD*)buff = FLASH_BLOCK_SIZE;
res = RES_OK;
break;
case GET_SECTOR_COUNT:
// *(DWORD*)buff = FLASH_SECTOR_COUNT;
res = RES_OK;
break;
default:
res = RES_PARERR;
break;
}
}else res=RES_ERROR;//<2F><><EFBFBD><EFBFBD><EFBFBD>IJ<EFBFBD>֧<EFBFBD><D6A7>
return res;
}
//<2F><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>
//User defined function to give a current time to fatfs module */
//31-25: Year(0-127 org.1980), 24-21: Month(1-12), 20-16: Day(1-31) */
//15-11: Hour(0-23), 10-5: Minute(0-59), 4-0: Second(0-29 *2) */
//<2F><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>
//User defined function to give a current time to fatfs module */
//31-25: Year(0-127 org.1980), 24-21: Month(1-12), 20-16: Day(1-31) */
//15-11: Hour(0-23), 10-5: Minute(0-59), 4-0: Second(0-29 *2) */
DWORD get_fattime (void)
{
RTC_TimeTypeDef time;
RTC_DateTypeDef date;
RTC_GetTime(RTC_Format_BIN,&time);
RTC_GetDate(RTC_Format_BIN,&date);
return ((date.RTC_Year+2000-1980)<<25|
date.RTC_Month<<21|
date.RTC_Date<<16|
time.RTC_Hours<<11|
time.RTC_Minutes<<5|
time.RTC_Seconds>>1
);
}
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