usb.h

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#ifndef _USB_
#define _USB_

#include <c8051f020.h>
#include <c8051f.h>
//#include <PDIUSBDEF.H>

//I/O Port Declaration
#define PDIUSB_CS P3_3
#define PDIUSB_A0 P3_0
#define SUSPEND P3_2

//Commond Define
#define SET_ADDRESS_ENABLE 0xD0
#define SET_ENDPOINT_ENABLE 0xD8
#define SET_MODE			0xF3
#define SET_DMA				0xFB
#define READ_INTERRUPT_REGISTER 0xF4
#define SELECT_ENDPOINT 	0x0
#define READ_ENDPOINT_STATUS 0x80
#define READ_LAST_STATUS	0x40
#define READ_BUFFER			0xF0
#define WRITE_BUFFER		0xF0
#define CLEAR_BUFFER		0xF2
#define VALIDATE_BUFFER		0xFA
#define SET_ENDPOINT_STATUS	0x40
#define ACK_SETUP			0xF1
#define SEND_RESUME			0xF6
#define READ_FRAME_NUMBER	0xF5

#define D12_INT_ENDP0OUT  0x0001   //中断寄存器位定义
#define D12_INT_ENDP0IN   0x0002
#define D12_INT_ENDP1OUT  0x0004
#define D12_INT_ENDP1IN   0x0008
#define D12_INT_ENDP2OUT  0x0010
#define D12_INT_ENDP2IN   0x0020
#define D12_INT_BUSRESET  0x0040
#define D12_INT_SUSPENDCHANGE 0x0080
#define D12_INT_EOT    0x0100

#define D12_SETUPPACKET      0x20  //读最后处理状态寄存器的设置信息包0010,0000b
#define EP0_PACKET_SIZE          16  //p0最大16byte
#define USB_ENDPOINT_DIRECTION_MASK   0x80  //设备请求类型,传输方向 D7 1000,0000b
#define USB_REQUEST_TYPE_MASK     0x30  //bmRequest的设置
#define USB_REQUEST_MASK      0x0f
#define USB_STANDARD_REQUEST     0x00  //5,6位的定义
#define USB_VENDOR_REQUEST      0x20
#define USB_DEVICE_DESCRIPTOR_TYPE    0x01  //描述符类型 设备描述符01h,配置描述符02,接口描述符04,端点描述符05
#define USB_CONFIGURATION_DESCRIPTOR_TYPE  0x02
#define CONFIG_DESCRIPTOR_LENGTH     0x002E  //配置描述符总长度


typedef union _Event_Flags_       //定义USB事件标志数据类型
{
	 struct _Bit_Flags_
	 {
		  unsigned char Timer                : 1; //定时器益出事件标记
		  unsigned char BusReset            : 1; //USB总线复位标志
		  unsigned char Suspend              : 1; //USB器件挂起标志
		  unsigned char SetupPacket       : 1; //收到SETUP包标志
		  unsigned char RemoteWakeup      : 1; //远程唤醒标志
		  unsigned char InISR          : 1; //USB中断服务标志
		  unsigned char ControlState   : 2; //控制端点处理状态
		             //0:IDEL     空闲状态
		             //1:TRANSMIT 数据发送状态
		             //2:RECEIVE  数据接受状态
		  
		  unsigned char Configuration   : 1; //配置标志 (0:未配置;1:已配置)
		  unsigned char Port1RxDone   : 1; //端口1收到数据标志
		  unsigned char Port2RxDone   : 1;  //端口2收到数据标志
		  unsigned char Port1TxFull        : 1; //端口1输出缓冲区满标志
		  unsigned char Port2TxFull   : 1;  //端口2输出缓冲区满标志
		  
		  unsigned char Reserve    : 3; //保留,未使用
	 }Bits;
	 unsigned short int Value;
}EVENT_FLAGS;          //事件标志数据类型

typedef struct _DEVICE_REQUEST_
{
	 unsigned char bmRequestType;     //请求类型
	 unsigned char bRequest;       //USB请求
	 unsigned short wValue;       //USB请求值
	 unsigned short wIndex;       //USB请求索引
	 unsigned short wLength;       //记数长度
}DEVICE_REQUEST;

#define MAX_CONTROLDATA_SIZE 8
typedef struct _control_xfer
{
	 DEVICE_REQUEST DeviceRequest;     //USB请求结构体
	 unsigned short wLength;       //传输数据的总字节数
	 unsigned short wCount;       //传输字节数统计
	 unsigned char * pData;       //传输数据指针
	 unsigned char dataBuffer[MAX_CONTROLDATA_SIZE]; //请求的数据
}CONTROL_XFER;

typedef struct _usb_device_descriptor
{
 unsigned char bLength;
 unsigned char bDescriptorType;
 unsigned int bcdUSB;
 unsigned char bDeviceClass;
 unsigned char bDeviceSubClass;
 unsigned char bDeviceProtocol;
 unsigned char bMaxPacketSize0;
 unsigned int idVendor;
 unsigned int idProduct;
 unsigned int bcdDevice;
 unsigned char iManufacturer;
 unsigned char iProduct;
 unsigned char iSerialNumber;
 unsigned char bNumConfiguations;
}USB_DEVICE_DESCRIPTOR;

//配置描述符
typedef struct _usb_configuration_descriptor
{
 unsigned char bLength[0x2e];
}USB_CONFIGURATION_DESCRIPTOR; 

extern void D12_SetMode(unsigned char bConfig,unsigned char bClkDiv);
extern void D12_SetEndpointStatus(unsigned char bEndp,unsigned char bStalled);
extern void D12_AcknowledgeEndpoint(unsigned char endp);
extern void D12_SetAddressEnable(unsigned char bAddress,unsigned char bEnable);
extern void D12_SetEndpointEnable(unsigned char bEnable);
extern unsigned short D12_ReadInterruptRegister(void);
extern unsigned char D12_ReadEndpointStatus(unsigned char EndPoint);
extern unsigned char D12_ReadLastTransactionStatus(unsigned char bEndp);
extern unsigned char D12_ReadEndpoint(unsigned char endp,unsigned char len,unsigned char *buf);
extern unsigned char D12_ReadEndpoint_Int(unsigned char endp,unsigned char len,unsigned char *buf);
extern unsigned char D12_WriteEndpoint(unsigned char endp,unsigned char len,unsigned char * buf);
extern unsigned char D12_WriteEndpoint_Int(unsigned char endp,unsigned char len,unsigned char * buf);
extern void DisconnectUSB(void);
extern void ConnectUSB(void);
extern void ReconnectUSB(void);
extern void InitialUSBInt(void);

extern void EP0_Out(void);
extern void EP0_In(void);
extern void EP1_Out(void);
extern void EP1_In(void);
extern void EP2_Out(void);
extern void EP2_In(void);
extern void code_transmit(unsigned char code *pRomData,unsigned short len);
extern void get_descriptor(void);
extern void single_transmit(unsigned char *buf,unsigned char len);
extern void set_address(void);
extern void set_configuration(void);
extern void get_configuration(void);
extern void get_interface(void);
extern void ControlHandler(void);
extern void USB_ISR(void);

#endif