obj_usbdesc.h

AT91rm9200的引导代码

//*----------------------------------------------------------------------------
//*         ATMEL Microcontroller Software Support  -  ROUSSET  -
//*----------------------------------------------------------------------------
//* The software is delivered "AS IS" without warranty or condition of any
//* kind, either express, implied or statutory. This includes without
//* limitation any warranty or condition with respect to merchantability or
//* fitness for any particular purpose, or against the infringements of
//* intellectual property rights of others.
//*----------------------------------------------------------------------------
//* File Name           : obj_udpdesc.h
//* Object              : USB peripheral library.
//*
//* 1.0 Sept 3rd 01 ODi : Creation
//*----------------------------------------------------------------------------
#ifndef obj_usbdesc_h
#define obj_usbdesc_h

#include 	"periph/udp/lib_udp.h"

/* *********************************************************************** */
/* Following definitions corresponds to the USB specification Rev. 1.1     */
/* They are used during the USB enumeration                                */
/* *********************************************************************** */

/* USB standard request code */
#define USB_GET_STATUS           0
#define USB_CLEAR_FEATURE        1
#define USB_SET_FEATURE          3
#define USB_SET_ADDRESS          5
#define USB_GET_DESCRIPTOR       6
#define USB_SET_DESCRIPTOR       7
#define USB_GET_CONFIGURATION    8
#define USB_SET_CONFIGURATION    9
#define USB_GET_INTERFACE       10
#define USB_SET_INTERFACE       11
#define USB_SYNCH_FRAME         12

/* USB descriptor types */
#define USB_DEVICE               1
#define USB_CONFIGURATION        2
#define USB_STRING               3
#define USB_INTERFACE            4
#define USB_ENDPOINT             5

/* USB standard feature selectors */
#define USB_DEVICE_REMOTE_WAKEUP 1
#define USB_ENDPOINT_HALT        0
/*---------------------------*/
/* USB Setup Data            */
/*---------------------------*/
typedef struct _AT91S_UsbSetup {
	char  bmRequestType;      /* Characteristics of request */
	char  bRequest;           /* Specific request */
	short wValue;             /* Word-sized field */
	short wIndex;             /* Word-sized field; used to pass an index or an offset */
	short wLength;            /* Number of bytes to transfert */
} AT91S_UsbSetup, *AT91PS_UsbSetup;

/*-------------------------------------------*/
/* USB Standard device descriptor            */
/*-------------------------------------------*/
typedef __packed struct _AT91S_UsbDevice {
	char  bLength;            /* Size of this descriptor */
	char  bDescriptorType;    /* DEVICE descriptor type */
	short bcdUSB;             /* USB Specification release Number */
	char  bDeviceClass;       /* Class code (assigned by the USB) */
	char  bDeviceSubClass;    /* Subclass code (assigned by the USB) */
	char  bDeviceProtocol;    /* Protool code (assigned by the USB) */
	char  bMaxPacketSize0;    /* Maximum packet size for endpoint 0 */
	short idVendor;           /* Vendor ID */
	short idProduct;          /* Product ID */
	short bcdDevice;          /* Device release number */
	char  iManufacturer;      /* Index of string descriptor describing manufacturer*/
	char  iProduct;           /* Index of string descriptor describing the product */
	char  iSerialNumber;      /* Index of string descriptor describing the device's serial number */
	char  bNumConfigurations; /* Number of possible configurations */
} AT91S_UsbDevice, *AT91PS_UsbDevice;


/*-------------------------------------------*/
/* USB Standard configuration descriptor     */
/*-------------------------------------------*/
typedef __packed struct _AT91S_UsbConfiguration {
	char  bLength;            /* Size of this descriptor */
	char  bDescriptorType;    /* CONFIGURATION descriptor type */
	short wTotalLength;       /* Total length of data returned for this configuration */
	char bNumInterfaces;      /* Number of interfaces supported by this configuration */
	char bConfigurationValue; /* Value to use as an argument to the set configuration() request */
	char iConfiguration;      /* Index of string descriptor describing this configuration */
	char bmAttributes;        /* Configuration characteristics */
	char MaxPower;            /* Maximum Power consumption */
} AT91S_UsbConfiguration, *AT91PS_UsbConfiguration;

__inline u_short wTotalLength(char const *pCfg) { return ((pCfg[3] << 8) | pCfg[2]); }

/*---------------------------------------*/
/* USB Standard interface descriptor     */
/*---------------------------------------*/
typedef __packed struct _AT91S_UsbInterface {
	char  bLength;            /* Size of this descriptor */
	char  bDescriptorType;    /* INTERFACE descriptor type */
	char  bInterfaceNumber;   /* Number of interface */
	char  bAlternateSetting;  /* Number of interfaces supported by this configuration */
	char  bNumEndpoints;      /* Number of endpoints used by this interface */
	char  bInterfaceClass;    /* Class code */
	char  bInterfaceSubClass; /* Subclass code */
	char  bInterfaceProtocol; /* Protocol code */
	char  iInterface;         /* Index of string descriptor describing this interface */
} AT91S_UsbInterface, *AT91PS_UsbInterface;

/*--------------------------------------*/
/* USB Standard endpoint descriptor     */
/*--------------------------------------*/
typedef __packed struct _AT91S_UsbEndpoint {
	char  bLength;            /* Size of this descriptor */
	char  bDescriptorType;    /* ENDP諭NT descriptor type */
	char  bEndpointAddress;   /* Address of the endpoint on the USB device described by this descriptor */
	char  bmAttributes;       /* Bitmap */
	short wMaxPacketSize;     /* Maximum packet size this endpoint is capable of sending or receiving */
	char  bInterval;          /* Interval for polling endpoint for data transfers */
} AT91S_UsbEndpoint, *AT91PS_UsbEndpoint;

__inline char           bEndpointAddress(char const *pEp)  { return (pEp[2] & 0x0F); }
__inline unsigned short wMaxPacketSize  (char const *pEp)  { return ((pEp[5] << 8) | pEp[4]); }

/*------------------------------------------*/
/* USB Standard UNICODE string descriptor  */
/*-----------------------------------------*/
typedef __packed struct _AT91S_UsbString {
	char  bLength;            /* Size of this descriptor */
	char  bDescriptorType;    /* STRING descriptor type */
	char  *bString;           /* UNICODE encoded string */
} AT91S_UsbString, *AT91PS_UsbString;




/* *********************************************************************** */
/* Following structure must be defined by the application                  */
/* Each pointer to function corresponds to standard request from the host  */
/* defined by the USB spec. Rev. 1.1                                       */
/*                                                                         */
/* If the request is not supported, the field must be set to 0. A STALL    */
/* handshake will be initialized with the host.                            */
/* *********************************************************************** */

typedef struct _AT91S_UsbDesc {

/* Following function is the entry point for the application */
	void (*DispatchRequest)    (
		struct _AT91S_UsbDesc *pUsbDesc, /* Pointer to this structure */
		AT91PS_UsbSetup  pSetup);           /* Descriptor type */
/* ======================================================================= */
/* Following functions are called by usbDispatchRequest() if a class or a  */
/* vendor request has been detected                                        */
/* ======================================================================= */
	void (*DispatchClassRequest)    (
		AT91PS_UsbSetup  pSetup,      /* Descriptor type */
		void *pPrivateClassData);  /* Pointer to private datas */
	void (*DispatchVendorRequest) (
		AT91PS_UsbSetup  pSetup,      /* Descriptor type */
		void *pPrivateVendorData); /* Pointer to private datas */

/* ======================================================================= */
/* Following functions are called after the request has been checked       */
/* according to the USB macro status                                       */
/* ======================================================================= */
	void (*ClearFeature) (