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/*///////////////////////////////////////////////////////////////////////////// 
File Name : PPP.h 
Author : Rene Trenado 
Location : Motorola Applications Lab, Baja California 
Date Created : September 2000 
Current Revision : 0.0 
Notes : Definitions for the PPP implementation 
/////////////////////////////////////////////////////////////////////////////*/ 
#ifndef __PPP_H 
#define __PPP_H 1 
#include "notation.h" 
#ifndef NULL 
#define NULL 0 
#endif 
#define ESC 0x7D 
#define END 0x7E 
#define REQ 1 
#define ACK 2 
#define NAK 3 
#define REJ 4 
#define TERMINATE 5 
#define TERMINATE_ACK 6 
/*typedef struct { 
WORD Framing; 
WORD Protocol; 
BYTE Request; 
BYTE Id; 
BYTE LengthHigh; 
BYTE Length; 
BYTE FirstOption; 
BYTE FirstOptionLength; 
BYTE Param; 
BYTE Data; 
} PPPFrame;*/ 
#define PPPINITFCS16 0xffff /* Initial FCS value */ 
#define PPPGOODFCS16 0xf0b8 /* Good final FCS value */ 
////////////// Functions to Export //////// 
void PPPInit (void); 
BYTE *PPPGetInputBuffer (void); 
BYTE *PPPGetOutputBuffer (void); 
void ProcPPPReceive (register BYTE c); 
void ProcPPPSend (BYTE *Buffer, BYTE len); 
WORD PPPGetChecksum (register unsigned char *cp, register int len); 
void SendPAPPacket (BYTE Action, char* user, char* password); 
void Move (BYTE *src, BYTE *dest, register numBYTEs); 
void PPPEntry (void); 
void PPPTerminate (void); 
void PPPSendVoidLCP (void); 
extern volatile BYTE PPPStatus; 
#define IsESC 0x01 // Previous character received was a ESC char 
#define ReSync 0x04 // Re Synchronize to avoid inconplete IP frame reception 
#define IsFrame 0x08 // A full packet 
#define ByteRx 0x10 // Receive a Byte 
#define LinkOn 0x20 // PPP Link is On 
extern BYTE IPAddress[4]; 
#define PPP_BUFFER_SIZE 88 
#define LCP_PACKET 0xC021 
#define PAP_PACKET 0xC023 
#define CHAP_PACKET 0xC223 
#define IPCP_PACKET 0x8021 
#define IP_DATAGRAM 0x0021 
#endif