Diff: EthernetInterface.cpp

Revision:

14:cec293071eed

Parent:

10:8d1c7a87c17b

Child:

15:fd9597f1b81b

--- a/EthernetInterface.cpp	Mon Jul 16 14:47:36 2012 +0000
+++ b/EthernetInterface.cpp	Mon Jul 23 11:53:01 2012 +0000
@@ -16,14 +16,6 @@
  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
-
-#define __DEBUG__ 0
-#ifndef __MODULE__
-#define __MODULE__ "EthernetInterface.cpp"
-#endif
-
-#include "core/fwk.h"
-
 #include "EthernetInterface.h"
 
 #include "lwip/inet.h"
@@ -31,115 +23,83 @@
 #include "netif/etharp.h"
 #include "lwip/dhcp.h"
 #include "arch/lpc17_emac.h"
-#include "lpc_phy.h" /* For the PHY monitor support */
+#include "lpc_phy.h"
 #include "lwip/tcpip.h"
 
 #include "mbed.h"
 
+/* TCP/IP and Network Interface Initialisation */
+static struct netif lpcNetif;
 
-EthernetInterface::EthernetInterface() : LwIPInterface(), m_lpcNetif(), m_netifStatusSphre(1), m_useDHCP(false)
-{
-  s_lpcNetifOff = (int32_t)( ((char*)this) - ((char*)&m_lpcNetif) );
-  m_netifStatusSphre.wait(0);
-}
+static Semaphore tcpip_inited(0);
+static Semaphore netif_inited(0);
 
-int EthernetInterface::init() //With DHCP
-{
-  m_useDHCP = true;
+static char ip_addr[16];
+static bool connected;
+static bool use_dhcp = false;
 
-  DBG("Initializing LwIP");
-  LwIPInterface::init(); //Init LwIP, NOT including PPP
-
-  DBG("DHCP IP assignment");
-
-  memset((void*)&m_lpcNetif, 0, sizeof(m_lpcNetif));
-  netif_add(&m_lpcNetif, NULL, NULL, NULL, NULL, lpc_enetif_init, ethernet_input/*tcpip_input???*/);
-  netif_set_default(&m_lpcNetif);
-  
-  netif_set_status_callback(&m_lpcNetif, &EthernetInterface::netifStatusCb);
-
-  return OK;
+static void tcpip_init_done(void *arg) {
+    tcpip_inited.release();
+}
+static void netif_status_callback(struct netif *netif) {
+    strcpy(ip_addr, inet_ntoa(netif->ip_addr));
+    connected = netif_is_up(netif) ? true : false;
+    netif_inited.release();
+}
+static void init_netif(ip_addr_t *ipaddr, ip_addr_t *netmask, ip_addr_t *gw) {
+    tcpip_init(tcpip_init_done, NULL);
+    tcpip_inited.wait();
+    
+    memset((void*) &lpcNetif, 0, sizeof(lpcNetif));
+    netif_add(&lpcNetif, ipaddr, netmask, gw, NULL, lpc_enetif_init, ethernet_input);
+    netif_set_default(&lpcNetif);
+    netif_set_status_callback(&lpcNetif, netif_status_callback);
 }
 
-int EthernetInterface::init(const char* ip, const char* mask, const char* gateway,
-    const char* dns1, const char* dns2) //No DHCP
-{
-  ip_addr_t ip_n, mask_n, gateway_n, dns1_n, dns2_n;
-
-  m_useDHCP = false;
-
-  DBG("Initializing LwIP");
-  LwIPInterface::init(); //Init LwIP
-
-  DBG("Static IP assignment");
-  inet_aton(ip, &ip_n);
-  inet_aton(mask, &mask_n);
-  inet_aton(gateway, &gateway_n);
-  inet_aton(dns1, &dns1_n);
-  inet_aton(dns2, &dns2_n);
-
-  memset((void*)&m_lpcNetif, 0, sizeof(m_lpcNetif));
-  netif_add(&m_lpcNetif, &ip_n, &mask_n, &gateway_n, NULL, lpc_enetif_init, ethernet_input/*tcpip_input???*/);
-  netif_set_default(&m_lpcNetif);
-  
-  netif_set_status_callback(&m_lpcNetif, &EthernetInterface::netifStatusCb);
-
-  return OK;
+int EthernetInterface::init() {
+    use_dhcp = true;
+    init_netif(NULL, NULL, NULL);
+    return OK;
 }
 
-int EthernetInterface::connect()
-{
-  m_netifStatusSphre.wait(0);
-
-  DBG("Enable MAC interrupts");
-  NVIC_SetPriority(ENET_IRQn, ((0x01 << 3) | 0x01));
-  NVIC_EnableIRQ(ENET_IRQn);
-
-  if(m_useDHCP)
-  {
-    dhcp_start(&m_lpcNetif); //The DHCP client will set the interface up once the IP/Netmask/Getway/DNS Servers are recovered
-  }
-  else
-  {
-    netif_set_up(&m_lpcNetif); //Set interface up
-  }
-  
-  m_netifStatusSphre.wait();
-  
-  DBG("Connected with IP %s", getIPAddress());
-
-  return OK;
+int EthernetInterface::init(const char* ip, const char* mask, const char* gateway) {
+    use_dhcp = false;
+    ip_addr_t ip_n, mask_n, gateway_n;
+    inet_aton(ip, &ip_n);
+    inet_aton(mask, &mask_n);
+    inet_aton(gateway, &gateway_n);
+    init_netif(&ip_n, &mask_n, &gateway_n);
+    return OK;
 }
 
-int EthernetInterface::disconnect()
-{
-  m_netifStatusSphre.wait(0);
-
-  if(m_useDHCP)
-  {
-    dhcp_release(&m_lpcNetif); //Release the lease & bring interface down
-    dhcp_stop(&m_lpcNetif);
-  }
-  else
-  {
-    netif_set_down(&m_lpcNetif);  
-  }
-
-  DBG("Disable MAC interrupts");
-  NVIC_DisableIRQ(ENET_IRQn);
-  
-  m_netifStatusSphre.wait();
-
-  return OK;
+int EthernetInterface::connect() {
+    NVIC_SetPriority(ENET_IRQn, ((0x01 << 3) | 0x01));
+    NVIC_EnableIRQ(ENET_IRQn);
+    
+    if (use_dhcp) {
+        dhcp_start(&lpcNetif);
+    } else {
+        netif_set_up(&lpcNetif);
+    }
+    
+    netif_inited.wait();
+    
+    return OK;
 }
 
-/*static*/ void EthernetInterface::netifStatusCb(struct netif *netif)
-{
-    EthernetInterface* pIf = (EthernetInterface*)( ((int32_t)netif) + ((int32_t)s_lpcNetifOff) ); //Bad kludge
-    pIf->setIPAddress(inet_ntoa(netif->ip_addr));
-    pIf->setConnected(netif_is_up(netif)?true:false);
-    pIf->m_netifStatusSphre.wait(0); //Clear if pending
-    pIf->m_netifStatusSphre.release();
+int EthernetInterface::disconnect() {
+    if (use_dhcp) {
+        dhcp_release(&lpcNetif);
+        dhcp_stop(&lpcNetif);
+    } else {
+        netif_set_down(&lpcNetif);
+    }
+    
+    NVIC_DisableIRQ(ENET_IRQn);
+    
+    return OK;
 }
 
-/*static*/ int32_t EthernetInterface::s_lpcNetifOff = 0;
\ No newline at end of file
+char* EthernetInterface::getIPAddress() {
+    return (connected) ? (ip_addr) : (NULL);
+}