at91_svc_usbout.h

AT91RM9200的USB相关ACM CDC的源代码包！ AT91RM9200-BasicUSBPipe-ARM1_2-2_0.zip

//*----------------------------------------------------------------------------
//*      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           : AT91_SVC_USBOUT.h
//* Object              : DMA service for UDP peripheral
//*
//* 1.0 Jul 30 2002 	: ODi Creation
//*----------------------------------------------------------------------------
#ifndef AT91_SVC_USBOUT
#define AT91_SVC_USBOUT
#include "AT91RM9200.h"

// Following defines are used by TxComplete
#define AT91C_SVC_USBOUT_TXABORT 0
#define AT91C_SVC_USBOUT_TXCOMPLETE 0

typedef struct _AT91S_SVC_USBOUT {
	// Public Method:
	// ==============
	// TxHandler is invoked by IT handler
	void (*Handler) (struct _AT91S_SVC_USBOUT *);
	// Read return the number of bytes read in circular buffer
	void (*Read) (
		struct _AT91S_SVC_USBOUT *,
		char *,
		unsigned int,
		void (*)(struct _AT91S_SVC_USBOUT *));
	// Private Datas:
	// ==============
	// Callbacks initialized by Read and Write functions
	void (*RxComplete) (struct _AT91S_SVC_USBOUT *);

	// There is 2 transfer descriptor to describe the 2 blocs being sent by PDC
	unsigned int clrFlag; // used by AT91F_SVC_DMAUDP_OutEpHandler to know which DATA_BK flag to clear
	// One transfer descriptor
	char *pBuffer;
	volatile unsigned int bufferSize;
	// Following stands as UDP static variables
	AT91PS_UDP pUdp;        // Pointer to UDP registers
	unsigned char epNb;     // Endpoint number
	unsigned char epSize;   // Size of the endpoint
	unsigned char nbBank;   // Number of banks (CTL endpoints = 1, FIFO endpoints = 2)
} AT91S_SVC_USBOUT, *AT91PS_SVC_USBOUT;

typedef void (*AT91PF_SVC_SVCUSBOUT_RxComplete)  (AT91PS_SVC_USBOUT);

//* ====================================================================================
extern AT91PS_SVC_USBOUT AT91F_SVC_USBOUT_Open(
	AT91PS_SVC_USBOUT pSvcUdp,  // \arg Pointer to an USBOUT service previously allocated
	AT91PS_UDP pUdp,            // \arg Pointer to UDP registers
	unsigned char epNb,         // \arg Endpoint Number
	unsigned char epSize,       // \arg Endpoint Size
	unsigned char nbBanks);     // \arg UDP DPR banks

extern void AT91F_SVC_USBOUT_Handler(
	AT91PS_SVC_USBOUT pSvcUdp);    // Pointer to an USBOUT service

extern void AT91F_SVC_USBOUT_Read(
	AT91PS_SVC_USBOUT pSvcUdp,     // Pointer to an USBOUT service
	char *pBuffer,          // Pointer to the client buffer to fill
	unsigned int bufferSize,       // Client buffer size
	AT91PF_SVC_SVCUSBOUT_RxComplete Callback); // Callback to invoke when buffer is Full

#endif // AT91_SVC_USBOUT