Ethernet stuff

2016-10-30 00:35:25 +02:00
parent 7ec78fbb6d
commit e7f3a81173
21 changed files with 3198 additions and 58 deletions
--- a/Ethernet/Ethernet.cpp
+++ b/Ethernet/Ethernet.cpp
@ -0,0 +1,136 @@
+#include "utility/w5100.h"
+#include "Ethernet.h"
+#include "Dhcp.h"
+
+// XXX: don't make assumptions about the value of MAX_SOCK_NUM.
+uint8_t EthernetClass::_state[MAX_SOCK_NUM] = { 
+  0, 0, 0, 0 };
+uint16_t EthernetClass::_server_port[MAX_SOCK_NUM] = { 
+  0, 0, 0, 0 };
+
+int EthernetClass::begin(uint8_t *mac_address, unsigned long timeout, unsigned long responseTimeout)
+{
+  static DhcpClass s_dhcp;
+  _dhcp = &s_dhcp;
+
+
+  // Initialise the basic info
+  W5100.init();
+  SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
+  W5100.setMACAddress(mac_address);
+  W5100.setIPAddress(IPAddress(0,0,0,0).raw_address());
+  SPI.endTransaction();
+
+  // Now try to get our config info from a DHCP server
+  int ret = _dhcp->beginWithDHCP(mac_address, timeout, responseTimeout);
+  if(ret == 1)
+  {
+    // We've successfully found a DHCP server and got our configuration info, so set things
+    // accordingly
+    SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
+    W5100.setIPAddress(_dhcp->getLocalIp().raw_address());
+    W5100.setGatewayIp(_dhcp->getGatewayIp().raw_address());
+    W5100.setSubnetMask(_dhcp->getSubnetMask().raw_address());
+    SPI.endTransaction();
+    _dnsServerAddress = _dhcp->getDnsServerIp();
+  }
+
+  return ret;
+}
+
+void EthernetClass::begin(uint8_t *mac_address, IPAddress local_ip)
+{
+  // Assume the DNS server will be the machine on the same network as the local IP
+  // but with last octet being '1'
+  IPAddress dns_server = local_ip;
+  dns_server[3] = 1;
+  begin(mac_address, local_ip, dns_server);
+}
+
+void EthernetClass::begin(uint8_t *mac_address, IPAddress local_ip, IPAddress dns_server)
+{
+  // Assume the gateway will be the machine on the same network as the local IP
+  // but with last octet being '1'
+  IPAddress gateway = local_ip;
+  gateway[3] = 1;
+  begin(mac_address, local_ip, dns_server, gateway);
+}
+
+void EthernetClass::begin(uint8_t *mac_address, IPAddress local_ip, IPAddress dns_server, IPAddress gateway)
+{
+  IPAddress subnet(255, 255, 255, 0);
+  begin(mac_address, local_ip, dns_server, gateway, subnet);
+}
+
+void EthernetClass::begin(uint8_t *mac, IPAddress local_ip, IPAddress dns_server, IPAddress gateway, IPAddress subnet)
+{
+  W5100.init();
+  SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
+  W5100.setMACAddress(mac);
+  W5100.setIPAddress(local_ip.raw_address());
+  W5100.setGatewayIp(gateway.raw_address());
+  W5100.setSubnetMask(subnet.raw_address());
+  SPI.endTransaction();
+  _dnsServerAddress = dns_server;
+}
+
+int EthernetClass::maintain(){
+  int rc = DHCP_CHECK_NONE;
+  if(_dhcp != NULL){
+    //we have a pointer to dhcp, use it
+    rc = _dhcp->checkLease();
+    switch ( rc ){
+      case DHCP_CHECK_NONE:
+        //nothing done
+        break;
+      case DHCP_CHECK_RENEW_OK:
+      case DHCP_CHECK_REBIND_OK:
+        //we might have got a new IP.
+        SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
+        W5100.setIPAddress(_dhcp->getLocalIp().raw_address());
+        W5100.setGatewayIp(_dhcp->getGatewayIp().raw_address());
+        W5100.setSubnetMask(_dhcp->getSubnetMask().raw_address());
+        SPI.endTransaction();
+        _dnsServerAddress = _dhcp->getDnsServerIp();
+        break;
+      default:
+        //this is actually a error, it will retry though
+        break;
+    }
+  }
+  return rc;
+}
+
+IPAddress EthernetClass::localIP()
+{
+  IPAddress ret;
+  SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
+  W5100.getIPAddress(ret.raw_address());
+  SPI.endTransaction();
+  return ret;
+}
+
+IPAddress EthernetClass::subnetMask()
+{
+  IPAddress ret;
+  SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
+  W5100.getSubnetMask(ret.raw_address());
+  SPI.endTransaction();
+  return ret;
+}
+
+IPAddress EthernetClass::gatewayIP()
+{
+  IPAddress ret;
+  SPI.beginTransaction(SPI_ETHERNET_SETTINGS);
+  W5100.getGatewayIp(ret.raw_address());
+  SPI.endTransaction();
+  return ret;
+}
+
+IPAddress EthernetClass::dnsServerIP()
+{
+  return _dnsServerAddress;
+}
+
+EthernetClass Ethernet;