d12.h

NIOS II 的几个源代码

#ifndef __D12_H__
#define __D12_H__

#include "alt_types.h"
#include "system.h"
/****************************************/
#define  USB_DAT      0
#define  USB_CMD      1

#define STATUS_OK   0
#define STATUS_ERR  1
#define EP0_PK_LEN  16
#define TRUE        1
#define FALSE       0

/*******************************************/
#define		GET_STATUS					  0
#define   LEAR_FEATURE				  1
#define		SET_FEATURE					  3
#define   SET_ADDRESS					  5
#define		GET_DESCRIPTOR				6
#define		SET_DESCRIPTOR				7
#define 	GET_CONFIGURATION			8
#define 	SET_CONFIGURATION			9
#define  	GET_INTERFACE 				10
#define		SET_INTERFACE				  11
#define		SYNCH_FREAME				  12

#define 	DEVICE						   1
#define		CONFIGURATION				 2
#define 	STRING						   3
#define		INTERFACE					   4
#define 	ENDPOINT					   5

#define		DEVICE_REMOTE_WAKUEP		1
#define		ENDPOINT_HALT			     	0
#define		D12_STALL					      2	

#define     ENDPOINT0_OUT				0
#define     ENDPOINT0_IN				1
#define     ENDPOINT1_OUT				2
#define     ENDPOINT1_IN				3
#define     ENDPOINT2_OUT				4
#define     ENDPOINT2_IN				5

#define		USB_Device_Setup_Flag		  0x40
#define		USB_Interface_Setup_Flag	0x41
#define		USB_EndPoint_Setup_Flag		0x42
#define		USB_SEND_ZERO_Flag			  0x43

#define		USB_RECIPIENT				      0x1F
#define		USB_RECIPIENT_DEVICE		  0x00
#define		USB_RECIPIENT_INTERFACE		0x01
#define		USB_RECIPIENT_ENDPOINT		0x02

#define		USB_REQUEST_TYPE_MASK		0x60
#define		USB_STANDARD_REQUEST		0x00
#define		USB_CLASS_REQUEST			  0x20
#define		USB_VENDOR_REQUEST			0x40

#define		USB_REQUEST_MASK			  0x0F

#define		DEVICE_ADDRESS_MASK			0x7F

#define		USB_SETUPPACKET				  0x21

/********************************************/
typedef struct  mDEVICE_REQUEST
{
    alt_u8	bmRequestType;
    alt_u8	bRequest;
    alt_u16	wValue;
    alt_u16	wIndex;
    alt_u16	wLength;
   
} DEVICE_REQUEST,*pDEVICE_REQUEST;

/***********D12初始化********************/
void USB_Port_Init(void);					//初始化usb端口

/**********D12操作程序*****************/
alt_u16	 D12RdChipId(void);						//读取D12 ID
void USB_Connect(alt_u8 mMode,alt_u8 mClk);			//USB连接函数
void USB_SetAddr_Enable(alt_u8 mAddr,alt_u8 mEnable);	//设置USB地址使能
void USB_SetEndPoint_Enable(alt_u8 mEnable);	//设置端点使能
void USB_SetEndPoint_Status(alt_u8 mEndPoint,alt_u8 mStall);	//设置端点状态
alt_u8   USB_GetEndPoint_Status(alt_u8 mEndPoint);	//获取端点状态
void USB_SetDMA_Mode(alt_u8 mMode);				//设置DMA模式
alt_u16  USB_Read_INT_Flag(void);				//读中断标志
alt_u8   USB_Read_LastStatus(alt_u8 mEndPoint);		//读最后处理状态寄存器
alt_u8   USB_Select_EndPoint(alt_u8 mEndPoint);		//选择端点
alt_u8   USB_Read_EndPoint_Buff(alt_u8 mEndPoint,alt_u8 mLen,alt_u8 *mBuff);    //读缓冲区
void USB_Write_EndPoint_Buff(alt_u8 mEndPoint,alt_u8 mLen,alt_u8 *mBuff);	//写缓冲区
void USB_EndPoint_Setup_Ack(alt_u8 mEndPoint);	//SetUp包应答
void USB_Stall(void);						//设备停止

/**************端点输入输出操作***************/
void USB_EndPoint0_IN(void);           
void USB_EndPoint0_OUT(void);
void USB_EndPoint1_IN(void);
void USB_EndPoint1_OUT(void);
void USB_EndPoint2_IN(void);
void USB_EndPoint2_OUT(void);

#endif