Austin Blackstone / Mbed 2 deprecated client-lwip-lightswitch-demo-expanded

mbed client lightswitch demo

Dependencies:   mbed Socket lwip-eth lwip-sys lwip

Fork of mbed-client-classic-example-lwip by Austin Blackstone

EthernetInterface/EthernetInterface.cpp@11:cada08fc8a70, 2016-06-09 (annotated)

Committer:
mbedAustin
Date:
Thu Jun 09 17:08:36 2016 +0000
Revision:
11:cada08fc8a70
Commit for public Consumption

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbedAustin 11:cada08fc8a70 1 /* EthernetInterface.cpp */
mbedAustin 11:cada08fc8a70 2 /* Copyright (C) 2012 mbed.org, MIT License
mbedAustin 11:cada08fc8a70 3 *
mbedAustin 11:cada08fc8a70 4 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
mbedAustin 11:cada08fc8a70 5 * and associated documentation files (the "Software"), to deal in the Software without restriction,
mbedAustin 11:cada08fc8a70 6 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
mbedAustin 11:cada08fc8a70 7 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
mbedAustin 11:cada08fc8a70 8 * furnished to do so, subject to the following conditions:
mbedAustin 11:cada08fc8a70 9 *
mbedAustin 11:cada08fc8a70 10 * The above copyright notice and this permission notice shall be included in all copies or
mbedAustin 11:cada08fc8a70 11 * substantial portions of the Software.
mbedAustin 11:cada08fc8a70 12 *
mbedAustin 11:cada08fc8a70 13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
mbedAustin 11:cada08fc8a70 14 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
mbedAustin 11:cada08fc8a70 15 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
mbedAustin 11:cada08fc8a70 16 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
mbedAustin 11:cada08fc8a70 17 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
mbedAustin 11:cada08fc8a70 18 */
mbedAustin 11:cada08fc8a70 19 #include "EthernetInterface.h"
mbedAustin 11:cada08fc8a70 20
mbedAustin 11:cada08fc8a70 21 #include "lwip/inet.h"
mbedAustin 11:cada08fc8a70 22 #include "lwip/netif.h"
mbedAustin 11:cada08fc8a70 23 #include "netif/etharp.h"
mbedAustin 11:cada08fc8a70 24 #include "lwip/dhcp.h"
mbedAustin 11:cada08fc8a70 25 #include "eth_arch.h"
mbedAustin 11:cada08fc8a70 26 #include "lwip/tcpip.h"
mbedAustin 11:cada08fc8a70 27
mbedAustin 11:cada08fc8a70 28 #include "mbed.h"
mbedAustin 11:cada08fc8a70 29
mbedAustin 11:cada08fc8a70 30 /* TCP/IP and Network Interface Initialisation */
mbedAustin 11:cada08fc8a70 31 static struct netif netif;
mbedAustin 11:cada08fc8a70 32
mbedAustin 11:cada08fc8a70 33 static char mac_addr[19];
mbedAustin 11:cada08fc8a70 34 static char ip_addr[17] = "\0";
mbedAustin 11:cada08fc8a70 35 static char gateway[17] = "\0";
mbedAustin 11:cada08fc8a70 36 static char networkmask[17] = "\0";
mbedAustin 11:cada08fc8a70 37 static bool use_dhcp = false;
mbedAustin 11:cada08fc8a70 38
mbedAustin 11:cada08fc8a70 39 static Semaphore tcpip_inited(0);
mbedAustin 11:cada08fc8a70 40 static Semaphore netif_linked(0);
mbedAustin 11:cada08fc8a70 41 static Semaphore netif_up(0);
mbedAustin 11:cada08fc8a70 42
mbedAustin 11:cada08fc8a70 43 static void tcpip_init_done(void *arg) {
mbedAustin 11:cada08fc8a70 44 tcpip_inited.release();
mbedAustin 11:cada08fc8a70 45 }
mbedAustin 11:cada08fc8a70 46
mbedAustin 11:cada08fc8a70 47 static void netif_link_callback(struct netif *netif) {
mbedAustin 11:cada08fc8a70 48 if (netif_is_link_up(netif)) {
mbedAustin 11:cada08fc8a70 49 netif_linked.release();
mbedAustin 11:cada08fc8a70 50 }
mbedAustin 11:cada08fc8a70 51 }
mbedAustin 11:cada08fc8a70 52
mbedAustin 11:cada08fc8a70 53 static void netif_status_callback(struct netif *netif) {
mbedAustin 11:cada08fc8a70 54 if (netif_is_up(netif)) {
mbedAustin 11:cada08fc8a70 55 strcpy(ip_addr, inet_ntoa(netif->ip_addr));
mbedAustin 11:cada08fc8a70 56 strcpy(gateway, inet_ntoa(netif->gw));
mbedAustin 11:cada08fc8a70 57 strcpy(networkmask, inet_ntoa(netif->netmask));
mbedAustin 11:cada08fc8a70 58 netif_up.release();
mbedAustin 11:cada08fc8a70 59 }
mbedAustin 11:cada08fc8a70 60 }
mbedAustin 11:cada08fc8a70 61
mbedAustin 11:cada08fc8a70 62 static void init_netif(ip_addr_t *ipaddr, ip_addr_t *netmask, ip_addr_t *gw) {
mbedAustin 11:cada08fc8a70 63 tcpip_init(tcpip_init_done, NULL);
mbedAustin 11:cada08fc8a70 64 tcpip_inited.wait();
mbedAustin 11:cada08fc8a70 65
mbedAustin 11:cada08fc8a70 66 memset((void*) &netif, 0, sizeof(netif));
mbedAustin 11:cada08fc8a70 67 netif_add(&netif, ipaddr, netmask, gw, NULL, eth_arch_enetif_init, tcpip_input);
mbedAustin 11:cada08fc8a70 68 netif_set_default(&netif);
mbedAustin 11:cada08fc8a70 69
mbedAustin 11:cada08fc8a70 70 netif_set_link_callback (&netif, netif_link_callback);
mbedAustin 11:cada08fc8a70 71 netif_set_status_callback(&netif, netif_status_callback);
mbedAustin 11:cada08fc8a70 72 }
mbedAustin 11:cada08fc8a70 73
mbedAustin 11:cada08fc8a70 74 static void set_mac_address(void) {
mbedAustin 11:cada08fc8a70 75 #if (MBED_MAC_ADDRESS_SUM != MBED_MAC_ADDR_INTERFACE)
mbedAustin 11:cada08fc8a70 76 snprintf(mac_addr, 19, "%02x:%02x:%02x:%02x:%02x:%02x", MBED_MAC_ADDR_0, MBED_MAC_ADDR_1, MBED_MAC_ADDR_2,
mbedAustin 11:cada08fc8a70 77 MBED_MAC_ADDR_3, MBED_MAC_ADDR_4, MBED_MAC_ADDR_5);
mbedAustin 11:cada08fc8a70 78 #else
mbedAustin 11:cada08fc8a70 79 char mac[6];
mbedAustin 11:cada08fc8a70 80 mbed_mac_address(mac);
mbedAustin 11:cada08fc8a70 81 snprintf(mac_addr, 19, "%02x:%02x:%02x:%02x:%02x:%02x", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
mbedAustin 11:cada08fc8a70 82 #endif
mbedAustin 11:cada08fc8a70 83 }
mbedAustin 11:cada08fc8a70 84
mbedAustin 11:cada08fc8a70 85 int EthernetInterface::init() {
mbedAustin 11:cada08fc8a70 86 use_dhcp = true;
mbedAustin 11:cada08fc8a70 87 set_mac_address();
mbedAustin 11:cada08fc8a70 88 init_netif(NULL, NULL, NULL);
mbedAustin 11:cada08fc8a70 89 return 0;
mbedAustin 11:cada08fc8a70 90 }
mbedAustin 11:cada08fc8a70 91
mbedAustin 11:cada08fc8a70 92 int EthernetInterface::init(const char* ip, const char* mask, const char* gateway) {
mbedAustin 11:cada08fc8a70 93 use_dhcp = false;
mbedAustin 11:cada08fc8a70 94
mbedAustin 11:cada08fc8a70 95 set_mac_address();
mbedAustin 11:cada08fc8a70 96 strcpy(ip_addr, ip);
mbedAustin 11:cada08fc8a70 97
mbedAustin 11:cada08fc8a70 98 ip_addr_t ip_n, mask_n, gateway_n;
mbedAustin 11:cada08fc8a70 99 inet_aton(ip, &ip_n);
mbedAustin 11:cada08fc8a70 100 inet_aton(mask, &mask_n);
mbedAustin 11:cada08fc8a70 101 inet_aton(gateway, &gateway_n);
mbedAustin 11:cada08fc8a70 102 init_netif(&ip_n, &mask_n, &gateway_n);
mbedAustin 11:cada08fc8a70 103
mbedAustin 11:cada08fc8a70 104 return 0;
mbedAustin 11:cada08fc8a70 105 }
mbedAustin 11:cada08fc8a70 106
mbedAustin 11:cada08fc8a70 107 int EthernetInterface::connect(unsigned int timeout_ms) {
mbedAustin 11:cada08fc8a70 108 eth_arch_enable_interrupts();
mbedAustin 11:cada08fc8a70 109
mbedAustin 11:cada08fc8a70 110 int inited;
mbedAustin 11:cada08fc8a70 111 if (use_dhcp) {
mbedAustin 11:cada08fc8a70 112 dhcp_start(&netif);
mbedAustin 11:cada08fc8a70 113
mbedAustin 11:cada08fc8a70 114 // Wait for an IP Address
mbedAustin 11:cada08fc8a70 115 // -1: error, 0: timeout
mbedAustin 11:cada08fc8a70 116 inited = netif_up.wait(timeout_ms);
mbedAustin 11:cada08fc8a70 117 } else {
mbedAustin 11:cada08fc8a70 118 netif_set_up(&netif);
mbedAustin 11:cada08fc8a70 119
mbedAustin 11:cada08fc8a70 120 // Wait for the link up
mbedAustin 11:cada08fc8a70 121 inited = netif_linked.wait(timeout_ms);
mbedAustin 11:cada08fc8a70 122 }
mbedAustin 11:cada08fc8a70 123
mbedAustin 11:cada08fc8a70 124 return (inited > 0) ? (0) : (-1);
mbedAustin 11:cada08fc8a70 125 }
mbedAustin 11:cada08fc8a70 126
mbedAustin 11:cada08fc8a70 127 int EthernetInterface::disconnect() {
mbedAustin 11:cada08fc8a70 128 if (use_dhcp) {
mbedAustin 11:cada08fc8a70 129 dhcp_release(&netif);
mbedAustin 11:cada08fc8a70 130 dhcp_stop(&netif);
mbedAustin 11:cada08fc8a70 131 } else {
mbedAustin 11:cada08fc8a70 132 netif_set_down(&netif);
mbedAustin 11:cada08fc8a70 133 }
mbedAustin 11:cada08fc8a70 134
mbedAustin 11:cada08fc8a70 135 eth_arch_disable_interrupts();
mbedAustin 11:cada08fc8a70 136
mbedAustin 11:cada08fc8a70 137 return 0;
mbedAustin 11:cada08fc8a70 138 }
mbedAustin 11:cada08fc8a70 139
mbedAustin 11:cada08fc8a70 140 char* EthernetInterface::getMACAddress() {
mbedAustin 11:cada08fc8a70 141 return mac_addr;
mbedAustin 11:cada08fc8a70 142 }
mbedAustin 11:cada08fc8a70 143
mbedAustin 11:cada08fc8a70 144 char* EthernetInterface::getIPAddress() {
mbedAustin 11:cada08fc8a70 145 return ip_addr;
mbedAustin 11:cada08fc8a70 146 }
mbedAustin 11:cada08fc8a70 147
mbedAustin 11:cada08fc8a70 148 char* EthernetInterface::getGateway() {
mbedAustin 11:cada08fc8a70 149 return gateway;
mbedAustin 11:cada08fc8a70 150 }
mbedAustin 11:cada08fc8a70 151
mbedAustin 11:cada08fc8a70 152 char* EthernetInterface::getNetworkMask() {
mbedAustin 11:cada08fc8a70 153 return networkmask;
mbedAustin 11:cada08fc8a70 154 }
mbedAustin 11:cada08fc8a70 155
mbedAustin 11:cada08fc8a70 156