EthernetInterface_Mods.hxx

00001 //
00002 // EthernetInterface Modifications to enhance it slightly.
00003 //
00004 // This set of modifications integrates with the mbed standard EthernetInterface stack.
00005 // It does require one-line modifications of both EthernetInterface.h and EthernetInterface.cpp.
00006 //
00007 // See the details at the top of EthernetInterface_Mods.h
00008 //
00009 #include "lpc_phy.h"
00010 
00011 static char myName[33];  // holds the name, when setName() is called.
00012 
00013 static bool inRange(char testChar, char minChar, char maxChar)
00014 {
00015     if (testChar >= minChar && testChar <= maxChar) 
00016         return true;
00017     else
00018         return false;
00019 }
00020 
00021 int EthernetInterface::setName(const char * myname) {
00022     int i;
00023     
00024     strncpy(myName, myname, 32);
00025     myName[32] = '\0';  // be sure it is NULL terminated.
00026     // make the name 'safe'
00027     for (i=0; i<32 && myName[i]; i++) {
00028         if (!inRange(myName[i], '0', '9')
00029         &&  !inRange(myName[i], 'A', 'Z')
00030         &&  !inRange(myName[i], 'a', 'z'))
00031             myName[i] = '-';
00032     }
00033     netif_set_hostname(&netif, myName);
00034     return 0;
00035 }
00036 
00037 const char * EthernetInterface::getName(void) {
00038     return netif_get_hostname(&netif);
00039 }
00040 
00041 bool EthernetInterface::is_connected(void) {
00042     uint32_t tmp = lpc_mii_read_data();
00043     
00044     return (tmp & DP8_VALID_LINK) ? true : false;
00045 }
00046 
00047 int EthernetInterface::get_transmission_status(void) {  // 1 = 1/2 duplex, 2 = full duplex
00048     uint32_t tmp = lpc_mii_read_data();
00049     
00050     if(tmp & DP8_FULLDUPLEX) {
00051         return 2;   // "FULL DUPLEX";
00052     } else {
00053         return 1;   // "HALF DUPLEX";
00054     }
00055 }
00056 
00057 int EthernetInterface::get_connection_speed(void) {     // 10 or 100 Mb
00058     uint32_t tmp = lpc_mii_read_data();
00059     
00060     return (tmp & DP8_SPEED10MBPS) ? 10 : 100;
00061 }
00062 
00063 uint32_t EthernetInterface::mii_read_data(void) {
00064     return lpc_mii_read_data();  // 16-bit MRDD - address 0x2008 4030
00065 }
00066 
00067 void EthernetInterface::LinkBlinkOnTraffic(int BlinkIt)
00068 {
00069     uint32_t data;
00070     
00071     if (lpc_mii_read(0x19, &data) == ERR_OK) {
00072         data &= ~(1 << 5);      // Mode 2, link status blinks on data
00073         if (!BlinkIt)
00074             data |= (1 << 5);   // Mode 1, link status only
00075         if (lpc_mii_write(0x19, data) != ERR_OK) {
00076             printf("LED Reconfig attempt failed.\r\n");
00077         }
00078     }
00079 }