main.c

基于MCU的U盘源码

#include <string.h> 
//#include "..\inc\option.h"
//#include "..\inc\def.h"
//#include "..\inc\44b.h"
//#include "..\inc\44blib.h"
//#include "..\inc\flash.h"
//#include "..\inc\download.h"
/

//#include "..\inc\cache.h"
//#include "..\inc\lcd240.h"
//#include "..\inc\KeyBoard16.h"
//#include "..\inc\ata.h"
#include <stdio.h>
//following is CPU test functions include
//#include "..\inc\cputest\adc.h"

//#include "..\inc\cputest\idle.h"
//#include "..\inc\cputest\iic.h"
//#include "..\inc\cputest\iis.h"
//#include "..\inc\cputest\nwait.h"
//#include "..\inc\cputest\power.h"
//#include "..\inc\cputest\rtc.h"
//#include "..\inc\cputest\sio.h"
//#include "..\inc\cputest\stop.h"
//#include "..\inc\cputest\timer.h"
//#include "..\inc\cputest\uart.h"



#include "main.h"
#include "d12ci.h"
#include "isr.h"
#include "chap9.h"
#include "usb100.h"

#include "..\fat16\fat16.h"
#include "..\bulk\bulk_only.h"
//*******************************

extern unsigned char *downPt;
extern unsigned int fileSize;

EPPFLAGS bEPPflags;
CONTROL_XFER ControlData;

//migrated for 51ok
extern unsigned long ClockTicks;

extern unsigned char  GenEpBuf[];
extern IO_REQUEST  ioRequest;

extern unsigned char ioSize, ioCount;
extern unsigned char  MainEpBuf[];
extern unsigned char  EpBuf[];

extern U8 Flash_One_Page[];


extern U8 Bulk_In_Buf[];
extern U32 Logical_Block_Address;
extern U32 nCurrentPage,nBeginPage;
extern U8 Flash_One_Page[];

//////////////////////////////////////////////
static void (*run)(void)=(void (*)(void))DOWNLOAD_ADDRESS;

U16 EthernetMac[3];

void (*StandardDeviceRequest[])(void) =
{
	get_status,
	clear_feature,
	reserved,
	set_feature,
	reserved,
	set_address,
	get_descriptor,
	reserved,
	get_configuration,
	set_configuration,
	get_interface,
	set_interface,
	reserved,
	reserved,
	reserved,
	reserved
};


void Isr_Init(void)
{
	rINTCON=0x5;	     	 ////3(reserved)	2(V 0=vector 1= non vector)	1(I,0=Enable IRQ,1=Disable IRQ) 0(FIQ Related0=enable 1=diable)
						// 1,Non-vectored,0,IRQ enable,1,FIQ disable //
						// 1,1,1 0x7,disable interupt.
	rINTMOD=0x0;	      //0=IRQ mode Set all of the INT to IRQ mode//
	
	rI_ISPC=BIT_EINT2;
	rINTMSK=BIT_GLOBAL;
	//pISR_FIQ,pISR_IRQ must be initialized//
	pISR_EINT2=(unsigned)usb_isr;
	rINTMSK=~(BIT_EINT0 |BIT_EINT2 | ~BIT_GLOBAL);

    
	//pISR_FIQ,pISR_IRQ must be initialized//
}

void reconnect_USB(void)
{
	unsigned long clk_cnt;

	MCU_LED0 = MCU_LED0_ON;
	MCU_LED1 = MCU_LED1_ON;

	D12SUSPD = D12SUSPD_ON;
	//Disconnect Usb
	D12_SetMode(D12_NOLAZYCLOCK, D12_SETTOONE | D12_CLOCK_12M);

	Delay(500);

	//Connect USB
	DISABLE;
	bEPPflags.value = 0;
	ENABLE;

	// V2.1 enable normal+sof interrupt
	D12_SetDMA(D12_ENDP4INTENABLE | D12_ENDP5INTENABLE);

	// Initialize D12 configuration

	//D12_SetMode(D12_NOLAZYCLOCK ,D12_SETTOONE | D12_CLOCK_12M );
	D12_SetMode(D12_ENDP_NONISO |D12_NOLAZYCLOCK | D12_SOFTCONNECT|D12_CLOCKRUNNING,D12_SETTOONE | D12_CLOCK_12M );
	
	//End of Connect USB
	MCU_LED0 = MCU_LED0_OFF;
 	MCU_LED1 = MCU_LED1_OFF;
 	
}



void control_handler(void)
{
	unsigned char type, req;
	
	type = ControlData.DeviceRequest.bmRequestType & USB_REQUEST_TYPE_MASK;	//0x60
	req = ControlData.DeviceRequest.bRequest & USB_REQUEST_MASK;		//0x0F
	//help_devreq(type, req); // print out device request

	if (type == USB_STANDARD_REQUEST)
		(*StandardDeviceRequest[req])();
	else{
		stall_ep0();
		}
}

void single_transmit(unsigned char * buf, unsigned char len)
{
if( len <= EP0_PACKET_SIZE) {
D12_WriteEndpoint(1, len,buf);
}
}

void code_transmit(unsigned char  * pRomData, unsigned short len)
{
	ControlData.wCount = 0;
	if(ControlData.wLength > len)
	ControlData.wLength = len;
	ControlData.pData = pRomData;
	if( ControlData.wLength >= EP0_PACKET_SIZE) {
		D12_WriteEndpoint(1,EP0_PACKET_SIZE, ControlData.pData);
		ControlData.wCount = ControlData.wCount + EP0_PACKET_SIZE;
//		Uart_Printf("len=%d,wCount=%d\n",len,ControlData.wCount);
		DISABLE;
		bEPPflags.bits.control_state = USB_TRANSMIT;
		ENABLE;
		}
	else {
		D12_WriteEndpoint(1, ControlData.wLength,pRomData);
		ControlData.wCount = ControlData.wCount + ControlData.wLength;
//		Uart_Printf("else*code_transmit,len=%d,wCount=%d\n",len,ControlData.wCount);
		DISABLE;
		bEPPflags.bits.control_state = USB_IDLE;
		ENABLE;
		}
//	Uart_Printf("bEPPflags.bits.control_state=%d\n",bEPPflags.bits.control_state);
}



void stall_ep0(void)
{
D12_SetEndpointStatus(0, 1);
D12_SetEndpointStatus(1, 1);

}

void Main(void)
{
	int i;
	rSYSCFG=CACHECFG;	// Using 8KB Cache//

	Uart_Init(0,115200);
	Port_Init();
	Isr_Init();
	Delay(0);
	downPt=(unsigned char *)DOWNLOAD_ADDRESS;


	Flash_Reset();

	Uart_Select(0); //Select UART0//

	rINTMSK=~(BIT_EINT0 |BIT_EINT2| BIT_GLOBAL);

//	Format_Fat16Media();//将Flash格式化成Fat16
//	for(i=0;i<32*528;i+=528) Flash_One_Page[i+5] = 0x55;
//	Write2Flash(0,4,14,Flash_One_Page);
	Uart_Printf("Hi, This is LiWei!\n");
	reconnect_USB();

//  D12 usb mainloop program
	while( TRUE ){
		if (bEPPflags.bits.setup_packet){
			DISABLE;
			bEPPflags.bits.setup_packet = 0;
			ENABLE;
			control_handler();
			//D12SUSPD = 1;
			D12SUSPD=D12SUSPD_ON;
		} // if setup_packet
	}
}