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161 lines
4.5 KiB
C
161 lines
4.5 KiB
C
// USED FOR SDIO-BASED SD CARDS
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/*
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* @author: ickle
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* @source: http://www.61ic.com/code/archiver/?tid-27986.html
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*/
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#include "platform_config.h"
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#include "jsinteractive.h"
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#include "ff.h"
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#include "diskio.h"
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#include "sdio_sdcard.h"
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SD_CardInfo SDCardInfo2;
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/*--------------------------------------------------------------------------
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Public Functions
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---------------------------------------------------------------------------*/
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/*-----------------------------------------------------------------------*/
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/* Initialize Disk Drive */
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/*-----------------------------------------------------------------------*/
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DSTATUS disk_initialize (
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BYTE drv /* Physical drive number (0) */
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)
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{
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NVIC_InitTypeDef NVIC_InitStructure;
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//jsiConsolePrint("SD_Init\n");
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SD_Init();
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//jsiConsolePrint("SD_GetCardInfo\n");
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SD_GetCardInfo(&SDCardInfo2);
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//jsiConsolePrint("SD_SelectDeselect\n");
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SD_SelectDeselect((uint32_t) (SDCardInfo2.RCA << 16));
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//jsiConsolePrint("SD_EnableWideBusOperation\n");
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SD_EnableWideBusOperation(SDIO_BusWide_4b);
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//jsiConsolePrint("SD_SetDeviceMode\n");
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SD_SetDeviceMode(SD_DMA_MODE);
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//jsiConsolePrint("NVIC_Init\n");
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NVIC_InitStructure.NVIC_IRQChannel = SDIO_IRQn;
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NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
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NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
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NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
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NVIC_Init(&NVIC_InitStructure);
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//NAND_Init();
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return 0;
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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 drv /* Physical drive number (0) */
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)
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{
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return 0;
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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 drv, /* Physical drive number (0) */
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BYTE *buff, /* Pointer to the data buffer to store read data */
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DWORD sector, /* Start sector number (LBA) */
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UINT count /* Sector count */
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)
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{
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uint16_t Transfer_Length;
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uint32_t Memory_Offset;
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Transfer_Length = count * 512;
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Memory_Offset = sector * 512;
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SD_ReadBlock(Memory_Offset, (uint32_t *)buff, Transfer_Length);
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//NAND_Read(Memory_Offset, (uint32_t *)buff, Transfer_Length);
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return RES_OK;
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}
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/*-----------------------------------------------------------------------*/
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/* Write Sector(s) */
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/*-----------------------------------------------------------------------*/
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DRESULT disk_write (
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BYTE drv, /* Physical drive number (0) */
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const BYTE *buff, /* Pointer to the data to be written */
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DWORD sector, /* Start sector number (LBA) */
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UINT count /* Sector count */
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)
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{
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uint16_t Transfer_Length;
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uint32_t Memory_Offset;
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Transfer_Length = count * 512;
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Memory_Offset = sector * 512;
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SD_WriteBlock(Memory_Offset, (uint32_t *)buff, Transfer_Length);
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//NAND_Write(Memory_Offset, (uint32_t *)buff, Transfer_Length);
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return RES_OK;
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}
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/*-----------------------------------------------------------------------*/
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/* Miscellaneous Functions */
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/*-----------------------------------------------------------------------*/
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DRESULT disk_ioctl (
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BYTE drv, // Physical drive number (0)
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BYTE ctrl, // 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 = RES_OK;
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uint32_t status = SD_NO_TRANSFER;
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//uint32_t status = NAND_READY;
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switch (ctrl) {
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case CTRL_SYNC : /// Make sure that no pending write process
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status = SD_GetTransferState();
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if (status == SD_NO_TRANSFER)
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//status = FSMC_NAND_GetStatus();
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//if (status == NAND_READY)
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{res = RES_OK;}
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else{res = RES_ERROR;}
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break;
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case GET_SECTOR_COUNT : // Get number of sectors on the disk (DWORD)
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*(DWORD*)buff = 131072; // 4*1024*32 = 131072
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res = RES_OK;
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break;
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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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res = RES_OK;
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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 = 32;
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res = RES_OK;
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break;
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}
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return res;
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}
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