File content as of revision 13:9cd54f7db57a:

#include "mbed.h"
#include   "io.h"
#include  "log.h"
#include  "eth.h"
#include  "mac.h"
#include  "net.h"
#include  "phy.h"

Ethernet eth;

DigitalIn phyLinkNeg (P1_25);
DigitalIn phySpeedNeg(P1_26);


static char buf[1600];

static Timer blinkTimer;

static void blink()
{
    blinkTimer.reset();
    blinkTimer.start();
}

static void updateLeds()
{
    if (blinkTimer.read_ms() < 100)
    {
        IoEthLedGrL = 0;
        IoEthLedYeR = 0;
    }
    else
    {
        IoEthLedGrL = !phyLinkNeg ;
        IoEthLedYeR = !phySpeedNeg;
        blinkTimer.stop();
    }
}
static int readPacket()
{
    int sizeReceived = eth.receive();
    if (sizeReceived)
    {
        eth.read(buf, sizeReceived);
        blink();
    }
    return sizeReceived;
}

static void sendPacket(int sendLength)
{
    eth.write(buf, sendLength); //Make a packet from the header (14 bytes) and the payload 
    int sent = eth.send();      //Send the packet
    if (sent) blink(); 
    else      LogTimeF("Packet of %d bytes not sent\r\n", sendLength);
}

static bool linkIsUp = false;
static void checkLinkIsUp()
{
    static Timer linkUpTimer;
    if (phyLinkNeg) //link is indicated as being down
    {
        linkIsUp = false;
        linkUpTimer.reset();
        linkUpTimer.start();
    }
    else            //link is indicated as being up
    {
        if (linkUpTimer.read_ms() > 100)
        {
            linkIsUp = true;
            linkUpTimer.stop();
        }
        else
        {
            linkUpTimer.start();
        }
    }
}

void PhyMain()
{
    updateLeds();
    
    checkLinkIsUp();
    
    int size = readPacket();
    
    int action = DO_NOTHING;
   
    //If a packet has been received then handle it
    if (size) action = EthHandlePacket(&buf, &size);
    
    //If there is no packet to handle then see if there is a packet waiting to be sent
    if (action == DO_NOTHING && linkIsUp)
    {
        action = EthPollForPacketToSend(&buf, &size);
    }
    
    //If there is a packet to send then send it
    if (action != DO_NOTHING)
    {
        sendPacket(size);
    }
}

void PhyInit()
{
    phyLinkNeg.mode(PullUp);
    phySpeedNeg.mode(PullUp);
    blink();
    eth.address(MacLocal);
    char text[20];
    NetMacToString(MacLocal, sizeof(text), text);
    LogF("\r\n");
    LogTimeF("MAC: %s\r\n", text);
}