271 lines
6.9 KiB
C
271 lines
6.9 KiB
C
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/*-----------------------------------------------------------------------*/
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/* Low level disk I/O module skeleton for FatFs (C)ChaN, 2013 */
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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 module 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 "ff.h"
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#ifndef FATFS_FLASH_SPI
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#define FATFS_FLASH_SPI 1
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#endif
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#ifndef TM_FATFS_CUSTOM_FATTIME
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#define TM_FATFS_CUSTOM_FATTIME 0
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#endif
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#ifndef FATFS_USE_SDIO
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#define FATFS_USE_SDIO 0
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#endif
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/* Include SD card files if is enabled */
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#if FATFS_USE_SDIO == 1
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#include "bsp_sdio_sdcard.h"
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#endif
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#if FATFS_FLASH_SPI == 1
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#include "fatfs_flash_spi.h"
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#endif
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/* Definitions of physical drive number for each media */
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#define ATA 1
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#define SPI_FLASH 0
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#define SD_BLOCK_SIZE 512 /* Block Size in Bytes */
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//extern SD_CardInfo SDCardInfo;
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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 (0..) */
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)
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{
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DSTATUS status = STA_NOINIT;
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FLASH_DEBUG_FUNC() ;
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switch (pdrv) {
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case ATA: /* SD CARD */
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#if FATFS_USE_SDIO == 1
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FLASH_DEBUG("SD init");
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status = SD_Init();
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if (status!=SD_OK )
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{
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status = STA_NOINIT;
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}
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else
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{
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status = RES_OK;
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}
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#endif
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break;
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case SPI_FLASH:
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#if FATFS_FLASH_SPI ==1
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FLASH_DEBUG("SPI FLASH init");
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status = TM_FATFS_FLASH_SPI_disk_initialize();
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#endif
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break;
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default:
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status = STA_NOINIT;
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}
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return status;
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}
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/*-----------------------------------------------------------------------*/
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/* Get Disk Status */
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/*-----------------------------------------------------------------------*/
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DSTATUS disk_status (
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BYTE pdrv /* Physical drive nmuber (0..) */
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)
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{
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DSTATUS status = STA_NOINIT;
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switch (pdrv) {
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case ATA: /* SD CARD */
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#if FATFS_USE_SDIO == 1
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status = RES_OK;
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#endif
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break;
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case SPI_FLASH:
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#if FATFS_FLASH_SPI ==1
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status = TM_FATFS_FLASH_SPI_disk_status(); /* SDIO communication */
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#endif
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break;
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default:
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status = STA_NOINIT;
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}
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return status;
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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 (0..) */
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BYTE *buff, /* Data buffer to store read data */
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DWORD sector, /* Sector address (LBA) */
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UINT count /* Number of sectors to read (1..128) */
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)
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{
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DRESULT status = RES_PARERR;
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switch (pdrv) {
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case ATA: /* SD CARD */
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#if FATFS_USE_SDIO == 1
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if (count > 1)
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{
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SD_ReadMultiBlocks(buff, sector*SD_BLOCK_SIZE, SD_BLOCK_SIZE, count);
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/* Check if the Transfer is finished */
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SD_WaitReadOperation(); //ѭ<><D1AD><EFBFBD><EFBFBD>ѯdma<6D><61><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD>
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/* Wait until end of DMA transfer */
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while(SD_GetStatus() != SD_TRANSFER_OK);
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}
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else
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{
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SD_ReadBlock(buff, sector*SD_BLOCK_SIZE, SD_BLOCK_SIZE);
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/* Check if the Transfer is finished */
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SD_WaitReadOperation(); //ѭ<><D1AD><EFBFBD><EFBFBD>ѯdma<6D><61><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD>
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/* Wait until end of DMA transfer */
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while(SD_GetStatus() != SD_TRANSFER_OK);
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}
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status = RES_OK;
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#endif
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break;
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case SPI_FLASH:
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#if FATFS_FLASH_SPI ==1
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status = TM_FATFS_FLASH_SPI_disk_read(buff, sector, count); /* SDIO communication */
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#endif
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break;
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default:
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status = RES_PARERR;
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}
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return status;
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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 (0..) */
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const BYTE *buff, /* Data to be written */
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DWORD sector, /* Sector address (LBA) */
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UINT count /* Number of sectors to write (1..128) */
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)
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{
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DRESULT status = RES_PARERR;
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if (!count) {
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return RES_PARERR; /* Check parameter */
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}
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switch (pdrv) {
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case ATA: /* SD CARD */
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#if FATFS_USE_SDIO == 1
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if (count > 1)
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{
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SD_WriteMultiBlocks((uint8_t *)buff, sector*SD_BLOCK_SIZE,SD_BLOCK_SIZE, count);
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/* Check if the Transfer is finished */
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SD_WaitWriteOperation(); //<2F>ȴ<EFBFBD>dma<6D><61><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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while(SD_GetStatus() != SD_TRANSFER_OK); //<2F>ȴ<EFBFBD>sdio<69><6F>sd<73><64><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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}
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else
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{
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SD_WriteBlock((uint8_t *)buff,sector*SD_BLOCK_SIZE,SD_BLOCK_SIZE);
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/* Check if the Transfer is finished */
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SD_WaitWriteOperation(); //<2F>ȴ<EFBFBD>dma<6D><61><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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while(SD_GetStatus() != SD_TRANSFER_OK); //<2F>ȴ<EFBFBD>sdio<69><6F>sd<73><64><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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}
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status = RES_OK;
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#endif
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break;
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case SPI_FLASH:
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#if FATFS_FLASH_SPI ==1
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status = TM_FATFS_FLASH_SPI_disk_write((BYTE *)buff, sector, count); /* SDIO communication */
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#endif
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break;
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default:
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status = RES_PARERR;
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}
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return status;
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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 status = RES_PARERR;
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switch (pdrv) {
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case ATA: /* SD CARD */
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#if FATFS_USE_SDIO == 1
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switch (cmd)
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{
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case GET_SECTOR_SIZE : // Get R/W sector size (WORD)
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*(WORD * )buff = 512;
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break;
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case GET_BLOCK_SIZE: // Get erase block size in unit of sector (DWORD)
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*(DWORD * )buff = SDCardInfo.CardBlockSize;
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break;
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case GET_SECTOR_COUNT:
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*(DWORD * )buff = SDCardInfo.CardCapacity/SDCardInfo.CardBlockSize;
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case CTRL_SYNC :
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break;
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}
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status = RES_OK;
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#endif
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break;
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case SPI_FLASH:
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#if FATFS_FLASH_SPI ==1
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status = TM_FATFS_FLASH_SPI_disk_ioctl(cmd, buff); /* SDIO communication */
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#endif
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break;
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default:
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status = RES_PARERR;
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}
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return status;
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}
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#endif
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__weak DWORD get_fattime(void) {
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/* Returns current time packed into a DWORD variable */
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return ((DWORD)(2013 - 1980) << 25) /* Year 2013 */
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| ((DWORD)7 << 21) /* Month 7 */
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| ((DWORD)28 << 16) /* Mday 28 */
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| ((DWORD)0 << 11) /* Hour 0 */
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| ((DWORD)0 << 5) /* Min 0 */
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| ((DWORD)0 >> 1); /* Sec 0 */
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}
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