sdi.c
来自「基于arm9的,usb设备(u盘)的读写操作实现.」· C语言 代码 · 共 1,134 行 · 第 1/2 页
C
1,134 行
#include "mx_types.h"
#include "2410addr.h"
#include "2410lib.h"
#include "f_type.h"
#include "f_system.h"
#include "f_fat.h"
#include "f_filesystem.h"
#include "sdi.h"
#define INICLK 400000//300000
#define NORCLK 5000000
#define POL 0
#define INT 1
#define DMA 2
u_8 *Tx_buffer; //128[word]*16[blk]=8192[byte]
u_8 *Rx_buffer; //128[word]*16[blk]=8192[byte]
volatile unsigned int rd_cnt;
volatile unsigned int wt_cnt;
volatile unsigned int block = 1;
volatile unsigned int TR_end=0;
int Wide=0; // 0:1bit, 1:4bit
int MMC=0; // 0:SD , 1:MMC
int Maker_ID;
char Product_Name[7];
int Serial_Num;
volatile int RCA;
u_32 start_num = 0;
int Test_Init(void)
{
RCA=0;
MMC=0;
rGPEUP = 0xf83f; // The pull up
rGPECON = 0xaaaaaaaa;
if(!SDI_CardInit())
return 0;
return 1;
}
void Test_SDI(void)
{
FAT_HANDLE *pHandle;
u_32 totalfilenum = 0, i = 0;
RCA=0;
MMC=0;
rGPEUP = 0xf83f; // The pull up
rGPECON = 0xaaaaaaaa;
Uart_Printf("\n[SDI test]\n");
if(!SDI_CardInit())
return;
{
F_FileSYS_Initial(0);
pHandle = &CurrentHandle;
F_FileSYS_FolderScan(pHandle);
totalfilenum = F_FileSYS_GetTotalFilenum();
Uart_Printf("total file number = %d\n",totalfilenum);
if(totalfilenum >0)
{
F_FileSYS_Dir(pHandle, start_num, &totalfilenum,"MP3");
start_num +=totalfilenum;
Uart_Printf("totalfilenum = %d\n",totalfilenum);
if(totalfilenum == 0)
Uart_Printf("No file you wanted..\n");
else
{
for(i = 0;i < totalfilenum; i++)
{
Uart_Printf("[%02d]: \tFile:%s\tstart_cluster:%08x\tfilesize:%d\n",i,g_FileInfo[i].fileInfo.fileINF_Name,g_FileInfo[i].fileInfo.fileINF_start_cluster,g_FileInfo[i].fileInfo.fileINF_size);
}
}
Uart_Printf("========================================================\n");
}
}
Card_sel_desel(0); // Card deselect
if(!CMD9())
Uart_Printf("Get CSD fail!!!\n");
rSDIDCON=0;//tark???
rSDICSTA=0xffff;
}
int SDI_CardInit(void)
{
int i;
char key;
rSDIPRE=PCLK/(2*INICLK)-1; // 400KHz
rSDICON=(1<<4)|(1<<1)|1; // Type B, FIFO reset, clk enable
rSDIBSIZE=0x200; // 512byte(128word)
rSDIDTIMER=0xffff; // Set timeout count
for(i=0;i<0x2000;i++); // Wait 74SDCLK for MMC card
CMD0();
// Uart_Printf("\nIn idle\n");
if(Chk_MMC_OCR())
{
// Uart_Printf("\nIn MMC ready\n");
MMC=1;
goto RECMD2;
}
if(Chk_SD_OCR())
{
// Uart_Printf("\nIn SD ready\n");
}
else
{
Uart_Printf("\nInitialize fail\nNo Card assertion\n");
return 0;
}
RECMD2:
//-- Check attaced cards, it makes card identification state
rSDICARG=0x0; // CMD2(stuff bit)
rSDICCON=(0x1<<10)|(0x1<<9)|(0x1<<8)|0x42; //lng_resp, wait_resp, start, CMD2
//-- Check end of CMD2
if(!Chk_CMDend(2, 1))
goto RECMD2;
//rSDICSTA=0xa00; // Clear cmd_end(with rsp)
// Uart_Printf("\nEnd id\n");
RECMD3:
//--Send RCA
rSDICARG=MMC<<16; // CMD3(MMC:Set RCA, SD:Ask RCA-->SBZ)
rSDICCON=(0x1<<9)|(0x1<<8)|0x43; // sht_resp, wait_resp, start, CMD3
//-- Check end of CMD3
if(!Chk_CMDend(3, 1))
goto RECMD3;
//rSDICSTA=0xa00; // Clear cmd_end(with rsp)
//--Publish RCA
if(MMC)
RCA=1;
else
RCA=( rSDIRSP0 & 0xffff0000 )>>16;
// Uart_Printf("RCA=0x%x\n",RCA);
//--State(stand-by) check
if( rSDIRSP0 & 0x1e00!=0x600 ) // CURRENT_STATE check
goto RECMD3;
// Uart_Printf("\nIn stand-by\n");
rSDIPRE=PCLK/(2*NORCLK)-1; // Normal clock=25MHz
Card_sel_desel(1); // Select
if(!MMC)
Set_4bit_bus();
else
Set_1bit_bus();
return 1;
}
void TR_Buf_new(void)
{
//-- Tx & Rx Buffer initialize
int i, j;
int start = 0x03020100;
Tx_buffer=(u_8 *)0x31000000;
j=0;
for(i=0;i<2048;i++) //128[word]*16[blk]=8192[byte]
*(Tx_buffer+i)=(u_8)(i+j);
Flush_Rx_buf();
// DataPrintINT(128*block, 16, Tx_buffer);
// DataPrintINT(128*block, 16, Rx_buffer);
}
void SDI_WriteSector(u_8 Index, u_32 LBA_Start, u_16 LBA_Length, u_8 * Buffer)
{
u_32 mode, tmpdata = 0;
int status;
wt_cnt=0;
rSDICON |= rSDICON|(1<<1); // FIFO reset
rSDIDCON=(1<<20)|(1<<17)|(Wide<<16)|(3<<12)|(LBA_Length<<0);
// Tx after rsp, blk, 4bit bus, Tx start, blk num
rSDICARG=LBA_Start * 512; // CMD24/25(addr)
if(LBA_Length<2) // SINGLE_WRITE
{
do
{
rSDICCON=(0x1<<9)|(0x1<<8)|0x58; //sht_resp, wait_resp, dat, start, CMD24
}while(!Chk_CMDend(24, 1)); //-- Check end of CMD24
}
else // MULTI_WRITE
{
do
{
rSDICCON=(0x1<<9)|(0x1<<8)|0x59; //sht_resp, wait_resp, dat, start, CMD25
}while(!Chk_CMDend(25, 1)); //-- Check end of CMD25
}
while(wt_cnt<128*LBA_Length) // 512*block bytes
{
if((rSDIDSTA&0x20)==0x20) // Check timeout
{
rSDIDSTA=0x1<<0x5; // Clear timeout flag
break;
}
status=rSDIFSTA;
if((status&0x2000)==0x2000) // Is Tx data?
{
#if 1
tmpdata =(u_32)((Buffer[0]&0xff)*0x1000000);
tmpdata +=(u_32)((Buffer[1]&0xff)*0x10000);
tmpdata +=(u_32)((Buffer[2]&0xff)*0x100);
tmpdata +=(u_32)((Buffer[3]&0xff)&0xFF);
Buffer = Buffer + 4;
#else
tmpdata =(u_32)((Buffer[0]&0xff)<<24);
tmpdata +=(u_32)((Buffer[1]&0xff)<<16);
tmpdata +=(u_32)((Buffer[2]&0xff)<<8);
tmpdata +=(u_32)((Buffer[3]&0xff)&0xFF);
Buffer = Buffer + 4;
#endif
rSDIDAT = tmpdata;
wt_cnt++;
}
}
//-- Check end of DATA
if(!Chk_DATend())
Uart_Printf("dat error\n");
rSDIDSTA=0x10; // Clear data Tx/Rx end
if(LBA_Length>1)
{
//--Stop cmd(CMD12)
do
{
rSDICARG=0x0; //CMD12(stuff bit)
rSDICCON=(0x1<<9)|(0x1<<8)|0x4c;//sht_resp, wait_resp, start, CMD12
//-- Check end of CMD12
}while(!Chk_CMDend(12, 1));
//-- Check end of DATA(with busy state)
if(!Chk_BUSYend())
Uart_Printf("error\n");
rSDIDSTA=0x08;
}
}
void Wt_Block(void)
{
u_32 mode;
int status;
wt_cnt=0;
Uart_Printf("[Block write test]\n");
RE1:
Uart_Printf("0:Polling write 1:Interrupt write 2:DMA write\nSelect the test mode?");
mode=(u_32)Uart_GetIntNum();
Uart_Printf("\n");
if(mode>2)
goto RE1;
rSDICON |= rSDICON|(1<<1); // FIFO reset
if(mode!=2)
rSDIDCON=(1<<20)|(1<<17)|(Wide<<16)|(3<<12)|(block<<0);
// Tx after rsp, blk, 4bit bus, Tx start, blk num
rSDICARG=0x0; // CMD24/25(addr)
REWTCMD:
switch(mode)
{
case POL:
if(block<2) // SINGLE_WRITE
{
rSDICCON=(0x1<<9)|(0x1<<8)|0x58; //sht_resp, wait_resp, dat, start, CMD24
if(!Chk_CMDend(24, 1)) //-- Check end of CMD24
goto REWTCMD;
}
else // MULTI_WRITE
{
rSDICCON=(0x1<<9)|(0x1<<8)|0x59; //sht_resp, wait_resp, dat, start, CMD25
if(!Chk_CMDend(25, 1)) //-- Check end of CMD25
goto REWTCMD;
}
while(wt_cnt<128*block)
{
status=rSDIFSTA;
if((status&0x2000)==0x2000)
{
rSDIDAT=*Tx_buffer++;
wt_cnt++;
}
}
break;
case INT:
pISR_SDI=(unsigned)Wt_Int;
rINTMSK = ~(BIT_SDI);
rSDIIMSK=0x10; // Tx FIFO half int.
if(block<2) // SINGLE_WRITE
{
rSDICCON=(0x1<<9)|(0x1<<8)|0x58; //sht_resp, wait_resp, dat, start, CMD24
if(!Chk_CMDend(24, 1)) //-- Check end of CMD24
goto REWTCMD;
}
else // MULTI_WRITE
{
rSDICCON=(0x1<<9)|(0x1<<8)|0x59; //sht_resp, wait_resp, dat, start, CMD25
if(!Chk_CMDend(25, 1)) //-- Check end of CMD25
goto REWTCMD;
}
while(!TR_end);
rINTMSK |= (BIT_SDI);
TR_end=0;
rSDIIMSK=0; // All mask
break;
case DMA:
pISR_DMA0=(unsigned)DMA_end;
rINTMSK = ~(BIT_DMA0);
rDISRC0=*Tx_buffer; // Tx_buffer
rDISRCC0=(0<<1)+(0<<0); // AHB, inc
rDIDST0=(u_32)(SDIDAT); // SDIDAT
rDIDSTC0=(1<<1)+(1<<0); // APB, fix
rDCON0=(1<<31)+(0<<30)+(1<<29)+(0<<28)+(0<<27)+(2<<24)+(1<<23)+(1<<22)+(2<<20)+128*block;
rDMASKTRIG0=(0<<2)+(1<<1)+0; //no-stop, DMA0 channel on, no-sw trigger
rSDIDCON=(1<<20)|(1<<17)|(Wide<<16)|(1<<15)|(3<<12)|(block<<0);
if(block<2) // SINGLE_WRITE
{
rSDICCON=(0x1<<9)|(0x1<<8)|0x58; //sht_resp, wait_resp, dat, start, CMD24
if(!Chk_CMDend(24, 1)) //-- Check end of CMD24
goto REWTCMD;
}
else // MULTI_WRITE
{
rSDICCON=(0x1<<9)|(0x1<<8)|0x59; //sht_resp, wait_resp, dat, start, CMD25
if(!Chk_CMDend(25, 1)) //-- Check end of CMD25
goto REWTCMD;
}
while(!TR_end);
rINTMSK |= (BIT_DMA0);
TR_end=0;
rDMASKTRIG0=(1<<2); //DMA0 stop
break;
default:
break;
}
//-- Check end of DATA
if(!Chk_DATend())
Uart_Printf("dat error\n");
rSDIDSTA=0x10; // Clear data Tx/Rx end
if(block>1)
{
//--Stop cmd(CMD12)
REWCMD12:
rSDIDCON=(1<<18)|(1<<17)|(0<<16)|(1<<12)|(block<<0);
rSDICARG=0x0; //CMD12(stuff bit)
rSDICCON=(0x1<<9)|(0x1<<8)|0x4c; //sht_resp, wait_resp, start, CMD12
//-- Check end of CMD12
if(!Chk_CMDend(12, 1))
goto REWCMD12;
//-- Check end of DATA(with busy state)
if(!Chk_BUSYend())
Uart_Printf("error\n");
rSDIDSTA=0x08;
}
}
void SDI_ReadSector(u_8 Index, u_32 LBA_Start, u_16 LBA_Length, u_8 * Buffer)
{
u_32 mode, tmpdata = 0;
int status;
rd_cnt=0;
rSDICON |= rSDICON|(1<<1); // FIFO reset
rSDIDCON=(1<<19)|(1<<17)|(Wide<<16)|(2<<12)|(LBA_Length<<0);
// Rx after cmd, blk, 4bit bus, Rx start, blk num
rSDICARG=LBA_Start * 512; // CMD17/18(addr)
if(LBA_Length<2) // SINGLE_READ
{
do
{
rSDICCON=(0x1<<9)|(0x1<<8)|0x51; // sht_resp, wait_resp, dat, start, CMD17
}while(!Chk_CMDend(17, 1));
}
else // MULTI_READ
{
do
{
rSDICCON=(0x1<<9)|(0x1<<8)|0x52; // sht_resp, wait_resp, dat, start, CMD18
}while(!Chk_CMDend(18, 1)); //-- Check end of CMD18
}
while(rd_cnt<128*LBA_Length) // 512*block bytes
{
if((rSDIDSTA&0x20)==0x20) // Check timeout
{
rSDIDSTA=0x1<<0x5; // Clear timeout flag
break;
}
status=rSDIFSTA;
if((status&0x1000)==0x1000) // Is Rx data?
{
//*Rx_buffer++=rSDIDAT;
tmpdata=rSDIDAT;
*Buffer++ = (tmpdata>>24)&0xFF;
*Buffer++ = (tmpdata>>16)&0xFF;
*Buffer++ = (tmpdata>>8)&0xFF;
*Buffer++ = tmpdata&0xFF;
rd_cnt++;
}
}
//-- Check end of DATA
if(!Chk_DATend())
Uart_Printf("dat error\n");
rSDIDSTA=0x10; // Clear data Tx/Rx end
if(LBA_Length>1)
{
do
{
rSDICARG=0x0; //CMD12(stuff bit)
rSDICCON=(0x1<<9)|(0x1<<8)|0x4c;//sht_resp, wait_resp, start, CMD12
//-- Check end of CMD12
}while(!Chk_CMDend(12, 1));
}
}
void Rd_Block(void)
{
u_32 mode, tmpdata = 0;
int status;
rd_cnt=0;
Uart_Printf("[Block read test]\n");
RE0:
Uart_Printf("0:Polling read 1:Interrupt read 2:DMA read\nSelect the test mode?");
mode=(u_32)Uart_GetIntNum();
Uart_Printf("\n");
if(mode>2)
goto RE0;
rSDICON |= rSDICON|(1<<1); // FIFO reset
if(mode!=2)
rSDIDCON=(1<<19)|(1<<17)|(Wide<<16)|(2<<12)|(block<<0);
// Rx after cmd, blk, 4bit bus, Rx start, blk num
rSDICARG=0; // CMD17/18(addr)
RERDCMD:
switch(mode)
{
case POL:
if(block<2) // SINGLE_READ
{
Uart_Printf("single_read\n");
rSDICCON=(0x1<<9)|(0x1<<8)|0x51; // sht_resp, wait_resp, dat, start, CMD17
if(!Chk_CMDend(17, 1)) //-- Check end of CMD17
goto RERDCMD;
}
else // MULTI_READ
{
rSDICCON=(0x1<<9)|(0x1<<8)|0x52; // sht_resp, wait_resp, dat, start, CMD18
if(!Chk_CMDend(18, 1)) //-- Check end of CMD18
goto RERDCMD;
}
//rSDICSTA=0xa00; // Clear cmd_end(with rsp)
while(rd_cnt<128*block) // 512*block bytes
{
Uart_Printf("=%x,",rSDIDCNT);
if((rSDIDSTA&0x20)==0x20) // Check timeout
{
Uart_Printf("time out!\n");
rSDIDSTA=0x1<<0x5; // Clear timeout flag
break;
}
status=rSDIFSTA;
if((status&0x1000)==0x1000) // Is Rx data?
{
//*Rx_buffer++=rSDIDAT;
tmpdata=rSDIDAT;
{
*Rx_buffer++ = (tmpdata>>24)&0xFF;
*Rx_buffer++ = (tmpdata>>16)&0xFF;
*Rx_buffer++ = (tmpdata>>8)&0xFF;
*Rx_buffer++ = tmpdata&0xFF;
}
rd_cnt++;
}
}
break;
case INT:
pISR_SDI=(unsigned)Rd_Int;
rINTMSK = ~(BIT_SDI);
rSDIIMSK=5; // Last & Rx FIFO half int.
if(block<2) // SINGLE_READ
{
rSDICCON=(0x1<<9)|(0x1<<8)|0x51; // sht_resp, wait_resp, dat, start, CMD17
if(!Chk_CMDend(17, 1)) //-- Check end of CMD17
⌨️ 快捷键说明
复制代码Ctrl + C
搜索代码Ctrl + F
全屏模式F11
增大字号Ctrl + =
减小字号Ctrl + -
显示快捷键?