/*
             LUFA Library
     Copyright (C) Dean Camera, 2010.
              
  dean [at] fourwalledcubicle [dot] com
      www.fourwalledcubicle.com
*/

/*
  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)

  Permission to use, copy, modify, distribute, and sell this 
  software and its documentation for any purpose is hereby granted
  without fee, provided that the above copyright notice appear in 
  all copies and that both that the copyright notice and this
  permission notice and warranty disclaimer appear in supporting 
  documentation, and that the name of the author not be used in 
  advertising or publicity pertaining to distribution of the 
  software without specific, written prior permission.

  The author disclaim all warranties with regard to this
  software, including all implied warranties of merchantability
  and fitness.  In no event shall the author be liable for any
  special, indirect or consequential damages or any damages
  whatsoever resulting from loss of use, data or profits, whether
  in an action of contract, negligence or other tortious action,
  arising out of or in connection with the use or performance of
  this software.
*/

/** \file
 *
 *  Header file for RNDISCommands.c.
 */

#ifndef _RNDIS_COMMANDS_H_
#define _RNDIS_COMMANDS_H_

	/* Includes: */
		#include <avr/io.h>
		#include <stdio.h>
		#include <string.h>
		
		#include <LUFA/Drivers/USB/USB.h>
		
		#include "RNDISConstants.h"

	/* Type Defines: */
		/** Type define for a RNDIS message header, sent before RNDIS messages */
		typedef struct
		{
			uint32_t MessageType; /**< RNDIS message type, a REMOTE_NDIS_*_MSG constant */
			uint32_t MessageLength; /**< Total length of the RNDIS message, in bytes */
		} RNDIS_Message_Header_t;

		/** Type define for a RNDIS packet message, used to encapsulate Ethernet packets sent to and from the adapter */
		typedef struct
		{
			uint32_t MessageType;
			uint32_t MessageLength;
			uint32_t DataOffset;
			uint32_t DataLength;
			uint32_t OOBDataOffset;
			uint32_t OOBDataLength;
			uint32_t NumOOBDataElements;
			uint32_t PerPacketInfoOffset;
			uint32_t PerPacketInfoLength;
			uint32_t VcHandle;
			uint32_t Reserved;
		} RNDIS_Packet_Message_t;
	
		/** Type define for a RNDIS Initialize command message */
		typedef struct
		{
			uint32_t MessageType;
			uint32_t MessageLength;
			uint32_t RequestId;
			
			uint32_t MajorVersion;
			uint32_t MinorVersion;
			uint32_t MaxTransferSize;
		} RNDIS_Initialize_Message_t;
		
		/** Type define for a RNDIS Initialize complete response message */
		typedef struct
		{
			uint32_t MessageType;
			uint32_t MessageLength;
			uint32_t RequestId;
			uint32_t Status;
			
			uint32_t MajorVersion;
			uint32_t MinorVersion;
			uint32_t DeviceFlags;
			uint32_t Medium;
			uint32_t MaxPacketsPerTransfer;
			uint32_t MaxTransferSize;
			uint32_t PacketAlignmentFactor;
			uint32_t AFListOffset;
			uint32_t AFListSize;
		} RNDIS_Initialize_Complete_t;
		
		/** Type define for a RNDIS Keepalive command message */
		typedef struct
		{
			uint32_t MessageType;
			uint32_t MessageLength;
			uint32_t RequestId;
		} RNDIS_KeepAlive_Message_t;

		/** Type define for a RNDIS Keepalive complete message */
		typedef struct
		{
			uint32_t MessageType;
			uint32_t MessageLength;
			uint32_t RequestId;
			uint32_t Status;
		} RNDIS_KeepAlive_Complete_t;

		/** Type define for a RNDIS Reset complete message */
		typedef struct
		{
			uint32_t MessageType;
			uint32_t MessageLength;
			uint32_t Status;

			uint32_t AddressingReset;
		} RNDIS_Reset_Complete_t;
		
		/** Type define for a RNDIS Set command message */
		typedef struct
		{
			uint32_t MessageType;
			uint32_t MessageLength;
			uint32_t RequestId;
			
			uint32_t Oid;
			uint32_t InformationBufferLength;
			uint32_t InformationBufferOffset;
			uint32_t DeviceVcHandle;
		} RNDIS_Set_Message_t;

		/** Type define for a RNDIS Set complete response message */
		typedef struct
		{
			uint32_t MessageType;
			uint32_t MessageLength;
			uint32_t RequestId;
			uint32_t Status;
		} RNDIS_Set_Complete_t;
		
		/** Type define for a RNDIS Query command message */
		typedef struct
		{
			uint32_t MessageType;
			uint32_t MessageLength;
			uint32_t RequestId;
			
			uint32_t Oid;
			uint32_t InformationBufferLength;
			uint32_t InformationBufferOffset;
			uint32_t DeviceVcHandle;
		} RNDIS_Query_Message_t;
		
		/** Type define for a RNDIS Query complete response message */
		typedef struct
		{
			uint32_t MessageType;
			uint32_t MessageLength;
			uint32_t RequestId;
			uint32_t Status;
			
			uint32_t InformationBufferLength;
			uint32_t InformationBufferOffset;
		} RNDIS_Query_Complete_t;

	/* Macros: */
		/** RNDIS request to issue a host-to-device NDIS command */
		#define REQ_SendEncapsulatedCommand           0x00

		/** RNDIS request to issue a device-to-host NDIS response */
		#define REQ_GetEncapsulatedResponse           0x01

		/** Implemented RNDIS Version Major */
		#define REMOTE_NDIS_VERSION_MAJOR             0x01

		/** Implemented RNDIS Version Minor */
		#define REMOTE_NDIS_VERSION_MINOR             0x00

		/** Pipe number for the RNDIS data IN pipe */
		#define RNDIS_DATAPIPE_IN                     1

		/** Pipe number for the RNDIS data OUT pipe */
		#define RNDIS_DATAPIPE_OUT                    2

		/** Pipe number for the RNDIS notification pipe */
		#define RNDIS_NOTIFICATIONPIPE                3
		
		/** Additional error code for RNDIS functions when a device returns a logical command failure */
		#define RNDIS_COMMAND_FAILED                  0xC0

	/* Function Prototypes: */
		uint8_t RNDIS_SendEncapsulatedCommand(void* const Buffer, const uint16_t Length);
		uint8_t RNDIS_GetEncapsulatedResponse(void* const Buffer, const uint16_t Length);

		uint8_t RNDIS_SendKeepAlive(void);
		uint8_t RNDIS_InitializeDevice(const uint16_t HostMaxPacketSize, uint16_t* const DeviceMaxPacketSize);
		uint8_t RNDIS_SetRNDISProperty(const uint32_t Oid, void* Buffer, const uint16_t Length);
		uint8_t RNDIS_QueryRNDISProperty(const uint32_t Oid, void* Buffer, const uint16_t MaxLength);
		uint8_t RNDIS_GetPacketLength(uint16_t* const PacketLength);

#endif
