Diff: Rede/EthernetIf.cpp

Revision:

0:65c41a68b49a

diff -r 000000000000 -r 65c41a68b49a Rede/EthernetIf.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Rede/EthernetIf.cpp	Fri Dec 13 11:42:59 2013 +0000
@@ -0,0 +1,188 @@
+#include "Rede/EthernetIf.h"
+
+#include "lwip/inet.h"
+#include "lwip/netif.h"
+#include "netif/etharp.h"
+#include "lwip/dhcp.h"
+#include "arch/lpc17_emac.h"
+#include "lpc_phy.h"
+#include "lwip/tcpip.h"
+
+#include "mbed.h"
+
+struct netif EthernetIf::lpcNetif;
+bool EthernetIf::use_dhcp;
+ip_addr_t EthernetIf::ip_n;
+ip_addr_t EthernetIf::netmask_n;
+ip_addr_t EthernetIf::gw_n;
+Semaphore EthernetIf::tcpip_initialized(0);
+Semaphore EthernetIf::link_up(0);
+Semaphore EthernetIf::netif_up(0);
+bool EthernetIf::link_is_up(false);
+
+uint32_t EthernetIf::os_timer_cb_led[5]; 
+osTimerDef_t EthernetIf::os_timer_def_led = { (led_refresh), (os_timer_cb_led) };
+
+void EthernetIf::tcpip_init_done(void *arg)
+{
+    //This function is called when the TCPIP stack finishes to initialize
+    tcpip_initialized.release();
+}
+
+void EthernetIf::link_status_callback(struct netif *netif)
+{
+    //Called when the interface link goes up or down
+    if(netif_is_link_up(netif))
+    {
+        printf("Link up!!!\n");
+        if(!link_is_up)
+        {
+            if(use_dhcp)
+            {
+                dhcp_start(&lpcNetif);
+            }
+            else
+            {
+                netif_set_addr(&lpcNetif,&ip_n,&netmask_n,&gw_n);
+                netif_set_up(&lpcNetif);
+            }
+        }
+        link_up.release();
+        link_is_up = true;
+    }
+    else
+    {
+        printf("Link down!!!\n");
+        netif_set_down(&lpcNetif);
+        link_is_up = false;
+    }
+}
+
+void EthernetIf::interface_status_callback(struct netif *netif)
+{
+    //called when the status of the interface is up or down
+    if(netif_is_up(netif))
+    {
+        netif_up.release();
+        printf("Interface Ethernet is up\n");
+        printf("IP Address: %s\n",get_IpAddress());
+        printf("Netmask: %s\n",get_Netmask());
+        printf("Gateway: %s\n\n",get_Gateway());
+    }
+}
+
+void EthernetIf::led_refresh(void const* arg)
+{
+    if(LPC_GPIO1->FIOPIN & (1<<25))
+        LPC_GPIO0->FIOSET |= (1<<4);
+    else
+        LPC_GPIO0->FIOCLR |= (1<<4);
+
+    if(LPC_GPIO1->FIOPIN & (1<<26))
+        LPC_GPIO0->FIOSET |= (1<<5);
+    else
+        LPC_GPIO0->FIOCLR |= (1<<5);
+}
+
+int EthernetIf::_init()
+{
+
+    LPC_PINCON->PINSEL3 &= ~(3<<18);    //GPIO P1.25 - MBED LED LINK
+    LPC_PINCON->PINSEL3 &= ~(3<<20);    //GPIO P1.26 - MBED LED SPEED
+    LPC_PINCON->PINSEL0 &= ~(3<<8);     //GPIO P0.4 - ETHERNET GREEN LED
+    LPC_PINCON->PINSEL0 &= ~(3<<10);    //GPIO P0.5 - ETHERNET YELLOW LED
+    LPC_GPIO1->FIODIR &= ~((1<<25)|(1<<26));
+    LPC_GPIO0->FIODIR |= ((1<<4)|(1<<5));
+    
+    tcpip_init(tcpip_init_done, NULL);
+    tcpip_initialized.wait();
+    
+    memset((void*) &lpcNetif, 0, sizeof(lpcNetif));
+    netif_add(&lpcNetif, &ip_n, &netmask_n, &gw_n, NULL, lpc_enetif_init, tcpip_input);
+    netif_set_default(&lpcNetif);
+    
+    netif_set_link_callback  (&lpcNetif, link_status_callback);
+    netif_set_status_callback(&lpcNetif, interface_status_callback);
+    
+    return 0;
+}
+
+int EthernetIf::Initialize()
+{
+    use_dhcp = true;
+    
+    return _init();
+}
+
+int EthernetIf::Initialize(char *ip,char *netmask,char *gw)
+{
+    use_dhcp = false;
+    inet_aton(ip,&ip_n);
+    inet_aton(netmask,&netmask_n);
+    inet_aton(gw,&gw_n);
+    
+    return _init();
+}
+
+int EthernetIf::Connect(unsigned int timeout /*= 1500*/)
+{
+    NVIC_SetPriority(ENET_IRQn, ((0x01 << 3) | 0x01));
+    NVIC_EnableIRQ(ENET_IRQn);
+    
+    netif_set_link_up(&lpcNetif);
+    int inited;
+    inited = netif_up.wait(timeout);
+    
+    osTimerId led_timer = osTimerCreate(osTimer(led), osTimerPeriodic, NULL);
+    osTimerStart(led_timer, 100);
+    
+    return (inited > 0) ? (0) : (-1);
+}
+
+int EthernetIf::Disconnect()
+{
+    if (use_dhcp)
+    {
+        dhcp_release(&lpcNetif);
+        dhcp_stop(&lpcNetif);
+    }
+    else
+    {
+        netif_set_down(&lpcNetif);
+    }
+    
+    NVIC_DisableIRQ(ENET_IRQn);
+    
+    return 0;
+}
+
+bool EthernetIf::is_LinkUp()
+{
+    if(netif_is_link_up(&lpcNetif))
+        return true;
+    else
+        return false;
+}
+
+bool EthernetIf::is_InterfaceUp()
+{
+    if(netif_is_up(&lpcNetif))
+        return true;
+    else
+        return false;
+}
+
+char* EthernetIf::get_IpAddress()
+{
+    return ipaddr_ntoa(&lpcNetif.ip_addr);
+}
+
+char* EthernetIf::get_Netmask()
+{
+    return ipaddr_ntoa(&lpcNetif.netmask);
+}
+
+char* EthernetIf::get_Gateway()
+{
+    return ipaddr_ntoa(&lpcNetif.gw);
+}
\ No newline at end of file