Andrew Boyson / net

A stack which works with or without an Mbed os library. Provides IPv4 or IPv6 with a full 1500 byte buffer.

Dependents:   oldheating gps motorhome heating

link/link.c

Committer:
andrewboyson
Date:
2018-12-05
Revision:
94:e2973a2c488e
Parent:
86:55bc5ddac16c
Child:
97:d91f7db00235

File content as of revision 94:e2973a2c488e:

#include <stdbool.h>

#include   "gpio.h"
#include    "log.h"
#include    "eth.h"
#include "action.h"
#include    "mac.h"
#include    "net.h"
#include   "link.h"
#include    "nic.h"
#include    "led.h"

#define  LINK_PIN FIO1PIN(25)
#define SPEED_PIN FIO1PIN(26)

bool LinkTrace = false;

bool LinkPhyLink  = false;
bool LinkPhySpeed = false;
bool LinkActivity = false;

void LinkMain()
{
    //Flash lights
    LinkPhyLink  = ! LINK_PIN;
    LinkPhySpeed = !SPEED_PIN;
    
    if (!NicLinkIsUp()) return;
    
    //Handle packets
    int sizeRx;
    int sizeTx;
    char* pRx = NicGetReceivedPacketOrNull(&sizeRx);
    char* pTx = NicGetTransmitPacketOrNull(&sizeTx);
    
    int action = DO_NOTHING;
    
    NetTraceHostResetMatched();
    
    LinkActivity = false;

    if (pRx)
    {
        LinkActivity = true;
        
        if (pTx) action = EthHandlePacket(pRx, sizeRx, pTx, &sizeTx);
    
        NicReleaseReceivedPacket();
    }
    
    if (pTx)
    {
        if (!action) action = EthPollForPacketToSend(pTx, &sizeTx);
    
        if ( action)
        {
            LinkActivity = true;
            NicSendTransmitPacket(sizeTx);
        }
    }
}

void LinkInit()
{
    NicInit();
    NicLinkAddress(MacLocal);
    if (LinkTrace)
    {
        Log("\r\n");
        LogTime("MAC: ");
        MacLog(MacLocal);
        Log("\r\n");
    }
}