Demo/lwIP_Demo_Rowley_ARM7/USB/USB-CDC.h

/*
    FreeRTOS V7.0.0 - Copyright (C) 2011 Real Time Engineers Ltd.
	

    ***************************************************************************
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    This file is part of the FreeRTOS distribution.

    FreeRTOS is free software; you can redistribute it and/or modify it under
    the terms of the GNU General Public License (version 2) as published by the
    Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
    >>>NOTE<<< The modification to the GPL is included to allow you to
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*/

#ifndef USB_CDC_H
#define USB_CDC_H

#include "usb.h"

#define USB_CDC_QUEUE_SIZE    200

/* Structure used to take a snapshot of the USB status from within the ISR. */
typedef struct X_ISR_STATUS
{
	unsigned long ulISR;
	unsigned long ulCSR0;
	unsigned char ucFifoData[ 8 ];
} xISRStatus;

/* Structure used to hold the received requests. */
typedef struct 
{
	unsigned char ucReqType;
	unsigned char ucRequest;
	unsigned short usValue;
	unsigned short usIndex;
	unsigned short usLength;
} xUSB_REQUEST;

typedef enum
{
	eNOTHING,
	eJUST_RESET,
	eJUST_GOT_CONFIG,
	eJUST_GOT_ADDRESS,
	eSENDING_EVEN_DESCRIPTOR,
	eREADY_TO_SEND
} eDRIVER_STATE;

/* Structure used to control the data being sent to the host. */
typedef struct
{
	unsigned char ucBuffer[ usbMAX_CONTROL_MESSAGE_SIZE ];
	unsigned long ulNextCharIndex;
	unsigned long ulTotalDataLength;
} xCONTROL_MESSAGE;

/*-----------------------------------------------------------*/
void vUSBCDCTask( void *pvParameters );

/* Send cByte down the USB port.  Characters are simply buffered and not
sent unless the port is connected. */
void vUSBSendByte( char cByte );


#endif