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/*********************************************************************
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*
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* IP Defs for Microchip TCP/IP Stack
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*
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*********************************************************************
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* FileName: IP.h
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* Dependencies: StackTsk.h
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* MAC.h
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* Processor: PIC18
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* Complier: MCC18 v1.00.50 or higher
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* HITECH PICC-18 V8.10PL1 or higher
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* Company: Microchip Technology, Inc.
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*
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* Software License Agreement
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*
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* The software supplied herewith by Microchip Technology Incorporated
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* (the “Company”) for its PICmicro® Microcontroller is intended and
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* supplied to you, the Company’s customer, for use solely and
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* exclusively on Microchip PICmicro Microcontroller products. The
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* software is owned by the Company and/or its supplier, and is
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* protected under applicable copyright laws. All rights are reserved.
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* Any use in violation of the foregoing restrictions may subject the
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* user to criminal sanctions under applicable laws, as well as to
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* civil liability for the breach of the terms and conditions of this
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* license.
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*
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* THIS SOFTWARE IS PROVIDED IN AN “AS IS” CONDITION. NO WARRANTIES,
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* WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED
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* TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. THE COMPANY SHALL NOT,
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* IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL OR
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* CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
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*
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* Author Date Comment
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*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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* Nilesh Rajbharti 4/27/01 Original (Rev 1.0)
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* Nilesh Rajbharti 2/9/02 Cleanup
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* Nilesh Rajbharti 5/22/02 Rev 2.0 (See version.log for detail)
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********************************************************************/
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#ifndef IP_H
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#define IP_H
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#include "stacktsk.h"
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#include "mac.h"
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#define IP_PROT_ICMP (1)
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#define IP_PROT_TCP (6)
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#define IP_PROT_UDP (17)
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/*
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* IP packet header definition
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*/
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typedef struct _IP_HEADER
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{
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BYTE VersionIHL;
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BYTE TypeOfService;
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WORD TotalLength;
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WORD Identification;
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WORD FragmentInfo;
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BYTE TimeToLive;
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BYTE Protocol;
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WORD HeaderChecksum;
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IP_ADDR SourceAddress;
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IP_ADDR DestAddress;
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} IP_HEADER;
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/*********************************************************************
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* Function: BOOL IPIsTxReady()
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*
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* PreCondition: None
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*
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* Input: None
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*
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* Output: TRUE if transmit buffer is empty
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* FALSE if transmit buffer is not empty
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*
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* Side Effects: None
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*
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* Note: None
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*
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********************************************************************/
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#define IPIsTxReady() MACIsTxReady()
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/*********************************************************************
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* Macro: IPSetTxBuffer(a, b)
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*
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* PreCondition: None
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*
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* Input: a - Buffer identifier
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* b - Offset
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*
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* Output: Next Read/Write access to transmit buffer 'a'
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* set to offset 'b'
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*
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* Side Effects: None
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*
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* Note: None
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*
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********************************************************************/
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#define IPSetTxBuffer(a, b) MACSetTxBuffer(a, b+sizeof(IP_HEADER))
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/*********************************************************************
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* Function: WORD IPPutHeader( IP_ADDR *Dest,
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* BYTE Protocol,
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* WORD Identifier,
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* WORD DataLen)
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*
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* PreCondition: IPIsTxReady() == TRUE
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*
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* Input: Src - Destination node address
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* Protocol - Current packet protocol
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* Identifier - Current packet identifier
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* DataLen - Current packet data length
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*
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* Output: Handle to current packet - For use by
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* IPSendByte() function.
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*
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* Side Effects: None
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*
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* Note: Only one IP message can be transmitted at any
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* time.
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* Caller may not transmit and receive a message
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* at the same time.
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*
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********************************************************************/
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WORD IPPutHeader(NODE_INFO *remote,
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BYTE protocol,
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WORD len);
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/*********************************************************************
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* Macro: IPPutArray(a, b)
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*
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* PreCondition: IPIsTxReady() == TRUE
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*
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* Input: a - Data buffer
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* b - Buffer length
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*
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* Output: None
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*
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* Side Effects: None
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*
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* Note: Data is copied to IP data area.
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*
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********************************************************************/
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#define IPPutArray(a, b) MACPutArray(a, b)
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/*********************************************************************
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* Function: BOOL IPGetHeader( IP_ADDR *localIP,
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* NODE_INFO *remote,
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* BYTE *Protocol,
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* WORD *len)
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*
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* PreCondition: MACGetHeader() == TRUE
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*
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* Input: localIP - Local node IP Address as received
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* in current IP header.
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* If this information is not required
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* caller may pass NULL value.
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* remote - Remote node info
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* Protocol - Current packet protocol
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* len - Current packet data length
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*
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* Output: TRUE, if valid packet was received
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* FALSE otherwise
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*
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* Side Effects: None
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*
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* Note: Only one IP message can be received.
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* Caller may not transmit and receive a message
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* at the same time.
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*
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********************************************************************/
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BOOL IPGetHeader(IP_ADDR *localIP,
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NODE_INFO *remote,
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BYTE *protocol,
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WORD *len);
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/*********************************************************************
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* Macro: IPDiscard()
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*
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* PreCondition: MACGetHeader() == TRUE
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*
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* Input: None
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*
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* Output: Current packet is discarded and buffer is
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* freed-up
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*
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* Side Effects: None
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*
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* Note: None
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*
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********************************************************************/
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#define IPDiscard() MACDiscard()
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/*********************************************************************
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* Macro: IPGetArray(a, b)
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*
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* PreCondition: MACGetHeader() == TRUE
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*
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* Input: a - Data buffer
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* b - Buffer length
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*
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* Output: None
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*
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* Side Effects: None
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*
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* Note: Data is copied from IP data to given buffer
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*
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********************************************************************/
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#define IPGetArray(a, b) MACGetArray(a, b)
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/*********************************************************************
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* Macro: IPSetRxBuffer(a)
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*
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* PreCondition: None
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*
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* Input: a - Offset
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*
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* Output: Next Read/Write access to receive buffer is
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* set to offset 'b'
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*
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* Side Effects: None
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*
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* Note: None
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*
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********************************************************************/
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#define IPSetRxBuffer(a) MACSetRxBuffer(a+sizeof(IP_HEADER))
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#endif
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Revision Log