picnic.h

Pic Nic 16f877/18f452控制 rtl8019as 原代码

/*
 * picnic.h
 *
 * Include file for picnic project
 *
 */

//Auto checks the compiler type and select the device
//For total portability between 16f877 and 18f452
//STILL does not work for 16F877
//TODO: Make it fully workful under 16F877
//#fuses HS,NOWDT,NOPROTECT
#if defined(__PCM__)
   #include <16F877.h>
#elif defined(__PCH__)
   #include <18F452.h>
#endif

//If not using IRQs and using Ivar's Bootloader, uncomment this line not to overwrite the Bootloader
//#org 0x0004, 0x0008 {}

//Reserves PIC Flash not to overwrite Ivar's Bootloader
//#if defined(__PCM__)
//   #ORG 0x3E98,0x3FFF {}    //16F877
//#elif defined(__PCH__)
//   #ORG 0x7D32,0x7FFF {}      //18F452
//#endif

//If we're not using irqs we need those lines also too keep bootloader safe in flash memory
//#int_global
//void dummy() {}

//Tell the compiler to use 16 bit pointer and 8 bit resolution on the adc
#DEVICE *=16 ADC=8

//Set clock speed
#use delay(clock=CLOCK_SPEED)

//Turn the serial port on with 19200bps 8N1
#use rs232(baud=19200,parity=N,xmit=PIN_C6,rcv=PIN_C7,bits=8,errors)

//Para comunicar com o outro PIC
//#use rs232(baud=19200, xmit=PIN_B6, rcv=PIN_B7, invert, stream=GEOSHOW)

//invert usado pq eh pic a pic sem max232 no meio

//Enable functions for reading the temperature sensor, if the "user" wants
#ifdef ENABLE_TEMPERATURE
   #include <1wire.c>
   #include <ds1820.c>
#endif

//Turn compiler case sensivity on
#case

//Important definitions
#define byte int8
#define READ  FALSE
#define WRITE TRUE

//Set I/O mode
#use fast_io(A)
#use fast_io(B)
#use fast_io(D)
#use fast_io(E)

//IP Address Structure
typedef struct {
   int8 ip0;
   int8 ip1;
   int8 ip2;
   int8 ip3;
} IP_ADDR;

//MAC Address Structure
typedef struct {
   int8 mac0;
   int8 mac1;
   int8 mac2;
   int8 mac3;
   int8 mac4;
   int8 mac5;
} MAC_ADDR;

//Node Structure (A host MAC Address + IP Address)
typedef struct {
    MAC_ADDR    MACAddr;
    IP_ADDR     IPAddr;
} NODE_INFO;

//A 16-Bit Word Type divided in Most Significant and Least Significant
typedef struct {
        int8 LSB;
        int8 MSB;
} WORD_VAL;

//Double Word Type
typedef struct _DWORD_VAL {
        int8 LOLSB;
        int8 LOMSB;
        int8 HILSB;
        int8 HIMSB;
} DWORD_VAL;

//14 Bytes Ethernet Header
struct _ETHERNET_HEADER {
    int8        mac_dest[6];
    int8        mac_source[6];
    int16       type;            //ip=0x8000, arp=0x0806, etc.
} ETHERNET_HEADER;


//COXAMBRA: Para casa do futuro
//14 Bytes Ethernet Header
struct __ETHERNET_HEADER {
    int8        mac_dest[6];
    int8        mac_source[6];
    int16       type;            //ip=0x8000, arp=0x0806, etc.
} SERVER_ETHERNET_HEADER;



//20 Bytes IP Header
typedef struct {
    int8     VersionIHL;
    int8     TypeOfService;   //Tos
    int16    TotalLength;
    int16    Identification;
    int16    FragmentInfo;
    int8     TimeToLive;      //TTL
    int8     Protocol;
    int16    HeaderChecksum;
    IP_ADDR  SourceAddress;
    IP_ADDR  DestAddress;
} _IP_HEADER;

//ARP Packet Structure
typedef struct {
    int16        HardwareType;
    int16        Protocol;
    int8         MACAddrLen;
    int8         ProtocolLen;
    int16        Operation;
    MAC_ADDR     SenderMACAddr;
    IP_ADDR      SenderIPAddr;
    MAC_ADDR     TargetMACAddr;
    IP_ADDR      TargetIPAddr;
} _ARP_PACKET;


//TCP Header
typedef struct {
    int16   SourcePort;
    int16   DestPort;
    int32   SeqNumber;
    int32   AckNumber;
    //int8    tcp_options;
    //int8    offset;
    struct _dataoffset {
    	int1 reserved3 :4;
    	int1 val :4;
    } dataoffset;
    struct _Flags {
               int1 flagFIN    : 1;
               int1 flagSYN    : 1;
               int1 flagRST    : 1;
               int1 flagPSH    : 1;
               int1 flagACK    : 1;
               int1 flagURG    : 1;
               int1 Reserved2  : 2;
    } Flags;
    int16    Window;
    int16    Checksum;
    int16    UrgentPointer;
} _TCP_HEADER;

//Possible TCP States
enum tcp_states {
    LISTEN,
    SYN_SENT,
    SYN_RCVD,
    ESTAB,
    FIN_WAIT_1,
    FIN_WAIT_2,
    CLOSING,
    TIME_WAIT,
    CLOSE_WAIT,
    LAST_ACK,
    CLOSED
};

//Protocols Definitions
//What the Ethernet Frame can carry
#define ARP 0x0806
#define IP  0x0800

//What the IP Packet can carry
#define ICMP  0x01
#define TCP 0x06
#define UDP 0x17

//ICMP Packet Flags
#define ECHO  0x08
#define REPLY 0x00

//TCP Packet Flags
#define TCP_FIN 0x01
#define TCP_SYN 0x02
#define TCP_RST 0x04
#define TCP_PSH 0x08
#define TCP_ACK 0x10
#define TCP_URG 0x20