
Contains example code to connect the mbed LPC1768 or FRDM-K64F devices to the IBM Internet of Things Cloud service via ethernet.
Dependencies: C12832 MQTT LM75B MMA7660
Dependents: MFT_IoT_demo_USB400 IBM_RFID
Diff: EthernetInterface/EthernetInterface.cpp
- Revision:
- 9:58eb378727d9
- Parent:
- 8:80d49dd91542
- Child:
- 10:0b5e0dfee08e
--- a/EthernetInterface/EthernetInterface.cpp Wed Oct 01 13:27:35 2014 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,156 +0,0 @@ -/* EthernetInterface.cpp */ -/* Copyright (C) 2012 mbed.org, MIT License - * - * Permission is hereby granted, free of charge, to any person obtaining a copy of this software - * and associated documentation files (the "Software"), to deal in the Software without restriction, - * including without limitation the rights to use, copy, modify, merge, publish, distribute, - * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in all copies or - * substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING - * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, - * 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. - */ -#include "EthernetInterface.h" - -#include "lwip/inet.h" -#include "lwip/netif.h" -#include "netif/etharp.h" -#include "lwip/dhcp.h" -#include "eth_arch.h" -#include "lwip/tcpip.h" - -#include "mbed.h" - -/* TCP/IP and Network Interface Initialisation */ -static struct netif netif; - -static char mac_addr[19]; -static char ip_addr[17] = "\0"; -static char gateway[17] = "\0"; -static char networkmask[17] = "\0"; -static bool use_dhcp = false; - -static Semaphore tcpip_inited(0); -static Semaphore netif_linked(0); -static Semaphore netif_up(0); - -static void tcpip_init_done(void *arg) { - tcpip_inited.release(); -} - -static void netif_link_callback(struct netif *netif) { - if (netif_is_link_up(netif)) { - netif_linked.release(); - } -} - -static void netif_status_callback(struct netif *netif) { - if (netif_is_up(netif)) { - strcpy(ip_addr, inet_ntoa(netif->ip_addr)); - strcpy(gateway, inet_ntoa(netif->gw)); - strcpy(networkmask, inet_ntoa(netif->netmask)); - netif_up.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*) &netif, 0, sizeof(netif)); - netif_add(&netif, ipaddr, netmask, gw, NULL, eth_arch_enetif_init, tcpip_input); - netif_set_default(&netif); - - netif_set_link_callback (&netif, netif_link_callback); - netif_set_status_callback(&netif, netif_status_callback); -} - -static void set_mac_address(void) { -#if (MBED_MAC_ADDRESS_SUM != MBED_MAC_ADDR_INTERFACE) - snprintf(mac_addr, 19, "%02x:%02x:%02x:%02x:%02x:%02x", MBED_MAC_ADDR_0, MBED_MAC_ADDR_1, MBED_MAC_ADDR_2, - MBED_MAC_ADDR_3, MBED_MAC_ADDR_4, MBED_MAC_ADDR_5); -#else - char mac[6]; - mbed_mac_address(mac); - snprintf(mac_addr, 19, "%02x:%02x:%02x:%02x:%02x:%02x", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); -#endif -} - -int EthernetInterface::init() { - use_dhcp = true; - set_mac_address(); - init_netif(NULL, NULL, NULL); - return 0; -} - -int EthernetInterface::init(const char* ip, const char* mask, const char* gateway) { - use_dhcp = false; - - set_mac_address(); - strcpy(ip_addr, ip); - - 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 0; -} - -int EthernetInterface::connect(unsigned int timeout_ms) { - eth_arch_enable_interrupts(); - - int inited; - if (use_dhcp) { - dhcp_start(&netif); - - // Wait for an IP Address - // -1: error, 0: timeout - inited = netif_up.wait(timeout_ms); - } else { - netif_set_up(&netif); - - // Wait for the link up - inited = netif_linked.wait(timeout_ms); - } - - return (inited > 0) ? (0) : (-1); -} - -int EthernetInterface::disconnect() { - if (use_dhcp) { - dhcp_release(&netif); - dhcp_stop(&netif); - } else { - netif_set_down(&netif); - } - - eth_arch_disable_interrupts(); - - return 0; -} - -char* EthernetInterface::getMACAddress() { - return mac_addr; -} - -char* EthernetInterface::getIPAddress() { - return ip_addr; -} - -char* EthernetInterface::getGateway() { - return gateway; -} - -char* EthernetInterface::getNetworkMask() { - return networkmask; -} - -