chap_9.h

PDIUSBD12的固件程序可能对开发USB1.1的兄弟有用

//协议层头文件

#ifndef __CHAP_9_H__
#define __CHAP_9_H__

#define MSB(x) (((x)>>8)&0xFF)

#define MAX_ENDPOINTS  (INT8U)0x03

//Get Status 命令的返回值
#define USB_GETSTATUS_SELF_POWERED   0x01
#define USB_GETSTATUS_REMOTE_WAKEUP_ENABLED  0x02

//USB 状态取值
#define USB_IDLE     0
#define USB_TRANSMIT 1
#define USB_RECEIVE  2

//USB事件结构体
typedef union _epp_flags
{
	struct _flags
	{
	    INT8U timer;
		INT8U bus_reset;
		INT8U suspend;
		INT8U setup_packet;
		INT8U remote_wakeup;
		INT8U in_isr;
		INT8U control_state;
 		INT8U configuration;
		INT8U command;
		INT8U ep1_rxdone;
		INT8U ep2_rxdone;
		INT8U ep2buf_full1;
	} bits;
	INT16U value;
} EPPFLAGS;

typedef struct _device_request
{
	INT8U bmRequestType;
	INT8U bRequest;
	INT16U wValue;
	INT16U wIndex;
	INT16U wLength;
} DEVICE_REQUEST;


//控制传输结构体
#define MAX_CONTROLDATA_SIZE 8
typedef struct _control_xfer
{
	DEVICE_REQUEST DeviceRequest;
	INT16U wLength;
	INT16U wCount;
	INT8U *pData;
	INT8U dataBuffer[MAX_CONTROLDATA_SIZE];
} CONTROL_XFER;

extern CONTROL_XFER ControlData;
extern EPPFLAGS bEPPflags;

// USB 标准设备请求函数
extern void get_status(void);
extern void clear_feature(void);
extern void set_feature(void);
extern void set_address(void);
extern void get_descriptor(void);
extern void get_configuration(void);
extern void set_configuration(void);
extern void get_interface(void);
extern void set_interface(void);
extern void reserved(void);
extern void stall_ep0(void);
extern void ep0_txdone(void);
extern void ep0_rxdone(void);

extern void init_unconfig(void);
extern void init_config(void);
extern void single_transmit(INT8U * pData, INT8U len);
extern void code_transmit(INT8U * pRomData, INT16U len);
extern void control_handler(void);

extern code void (*StandardDeviceRequest[])(void);

#endif