chap_9.h

usbhost 开发码

//char_9.h

#ifndef __CHAP_9_H__
#define __CHAP_9_H__

/*
   //*************************************************************************
   // USB Protocol Layer
   //*************************************************************************
*/
#define NUM_ENDPOINTS	4
#define CONFIG_DESCRIPTOR_LENGTH    sizeof(USB_CONFIGURATION_DESCRIPTOR) \
									+ sizeof(USB_INTERFACE_DESCRIPTOR) \
									+ sizeof(USB_HID_DESCRIPTOR) \
									+ (NUM_ENDPOINTS * sizeof(USB_ENDPOINT_DESCRIPTOR))
#define SWAP(x)   ((((x) & 0xFF) << 8) | (((x) >> 8) & 0xFF))
#define MSB(x)    (((x) >> 8) & 0xFF)
#define LSB(x)    ((x) & 0xFF)
//#define D12_STALL				0x02

typedef struct _device_request
{
	unsigned char bmRequestType;
	unsigned char bRequest;
	unsigned short wValue;
	unsigned short wIndex;
	unsigned short wLength;
} DEVICE_REQUEST;

#define MAX_CONTROLDATA_SIZE	8
typedef struct _control_xfer
{
	DEVICE_REQUEST DeviceRequest;
	unsigned short wLength;
	unsigned short wCount;
	unsigned char * pData;
	unsigned char dataBuffer[MAX_CONTROLDATA_SIZE];
} CONTROL_XFER;
typedef struct _USB_HID_DESCRIPTOR
{
    UCHAR   bLength;
    UCHAR   bDescriptorType;
    USHORT  bcdHID;
    UCHAR   bCountry;
    UCHAR   bNumDescriptors;
    UCHAR   bReportType;
    USHORT  wReportLength;

} USB_HID_DESCRIPTOR, * PUSB_HID_DESCRIPTOR;
typedef UCHAR HID_REPORT_DESCRIPTOR, *PHID_REPORT_DESCRIPTOR;

void single_transmit(uchar * buf,uchar len);
void stall_ep0(void);

void get_status(void);
void clear_feature(void);
void set_feature(void);
void set_address(void);
void get_descriptor(void);
void get_configuration(void);
void set_configuration(void);
void get_interface(void);
void set_interface(void);
void control_handler();

void reserved(void);

#endif