Lee Kai Xuan / mbed-os

mbed-os

Fork of mbed-os by erkin yucel

features/unsupported/net/eth/EthernetInterface/EthernetInterface.cpp@1:3deb71413561, 2017-07-20 (annotated)

Committer:
xuaner
Date:
Thu Jul 20 14:26:57 2017 +0000
Revision:
1:3deb71413561
Parent:
0:f269e3021894 
mbed_os

Who changed what in which revision?

UserRevisionLine numberNew contents of line
elessair 0:f269e3021894 1 /* EthernetInterface.cpp */
elessair 0:f269e3021894 2 /* Copyright (C) 2012 mbed.org, MIT License
elessair 0:f269e3021894 3 *
elessair 0:f269e3021894 4 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
elessair 0:f269e3021894 5 * and associated documentation files (the "Software"), to deal in the Software without restriction,
elessair 0:f269e3021894 6 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
elessair 0:f269e3021894 7 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
elessair 0:f269e3021894 8 * furnished to do so, subject to the following conditions:
elessair 0:f269e3021894 9 *
elessair 0:f269e3021894 10 * The above copyright notice and this permission notice shall be included in all copies or
elessair 0:f269e3021894 11 * substantial portions of the Software.
elessair 0:f269e3021894 12 *
elessair 0:f269e3021894 13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
elessair 0:f269e3021894 14 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
elessair 0:f269e3021894 15 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
elessair 0:f269e3021894 16 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
elessair 0:f269e3021894 17 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
elessair 0:f269e3021894 18 */
elessair 0:f269e3021894 19 #include "EthernetInterface.h"
elessair 0:f269e3021894 20
elessair 0:f269e3021894 21 #include "lwip/inet.h"
elessair 0:f269e3021894 22 #include "lwip/netif.h"
elessair 0:f269e3021894 23 #include "netif/etharp.h"
elessair 0:f269e3021894 24 #include "lwip/dhcp.h"
elessair 0:f269e3021894 25 #include "eth_arch.h"
elessair 0:f269e3021894 26 #include "lwip/tcpip.h"
elessair 0:f269e3021894 27
elessair 0:f269e3021894 28 #include "mbed.h"
elessair 0:f269e3021894 29
elessair 0:f269e3021894 30 /* TCP/IP and Network Interface Initialisation */
elessair 0:f269e3021894 31 static struct netif netif;
elessair 0:f269e3021894 32
elessair 0:f269e3021894 33 static char mac_addr[19];
elessair 0:f269e3021894 34 static char ip_addr[17] = "\0";
elessair 0:f269e3021894 35 static char gateway[17] = "\0";
elessair 0:f269e3021894 36 static char networkmask[17] = "\0";
elessair 0:f269e3021894 37 static bool use_dhcp = false;
elessair 0:f269e3021894 38
elessair 0:f269e3021894 39 static Semaphore tcpip_inited(0);
elessair 0:f269e3021894 40 static Semaphore netif_linked(0);
elessair 0:f269e3021894 41 static Semaphore netif_up(0);
elessair 0:f269e3021894 42
elessair 0:f269e3021894 43 static void tcpip_init_done(void *arg) {
elessair 0:f269e3021894 44 tcpip_inited.release();
elessair 0:f269e3021894 45 }
elessair 0:f269e3021894 46
elessair 0:f269e3021894 47 static void netif_link_callback(struct netif *netif) {
elessair 0:f269e3021894 48 if (netif_is_link_up(netif)) {
elessair 0:f269e3021894 49 netif_linked.release();
elessair 0:f269e3021894 50 }
elessair 0:f269e3021894 51 }
elessair 0:f269e3021894 52
elessair 0:f269e3021894 53 static void netif_status_callback(struct netif *netif) {
elessair 0:f269e3021894 54 if (netif_is_up(netif)) {
elessair 0:f269e3021894 55 strcpy(ip_addr, inet_ntoa(netif->ip_addr));
elessair 0:f269e3021894 56 strcpy(gateway, inet_ntoa(netif->gw));
elessair 0:f269e3021894 57 strcpy(networkmask, inet_ntoa(netif->netmask));
elessair 0:f269e3021894 58 netif_up.release();
elessair 0:f269e3021894 59 }
elessair 0:f269e3021894 60 }
elessair 0:f269e3021894 61
elessair 0:f269e3021894 62 static void init_netif(ip_addr_t *ipaddr, ip_addr_t *netmask, ip_addr_t *gw) {
elessair 0:f269e3021894 63 tcpip_init(tcpip_init_done, NULL);
elessair 0:f269e3021894 64 tcpip_inited.wait();
elessair 0:f269e3021894 65
elessair 0:f269e3021894 66 memset((void*) &netif, 0, sizeof(netif));
elessair 0:f269e3021894 67 netif_add(&netif, ipaddr, netmask, gw, NULL, eth_arch_enetif_init, tcpip_input);
elessair 0:f269e3021894 68 netif_set_default(&netif);
elessair 0:f269e3021894 69
elessair 0:f269e3021894 70 netif_set_link_callback (&netif, netif_link_callback);
elessair 0:f269e3021894 71 netif_set_status_callback(&netif, netif_status_callback);
elessair 0:f269e3021894 72 }
elessair 0:f269e3021894 73
elessair 0:f269e3021894 74 static void set_mac_address(void) {
elessair 0:f269e3021894 75 #if (MBED_MAC_ADDRESS_SUM != MBED_MAC_ADDR_INTERFACE)
elessair 0:f269e3021894 76 snprintf(mac_addr, 19, "%02x:%02x:%02x:%02x:%02x:%02x", MBED_MAC_ADDR_0, MBED_MAC_ADDR_1, MBED_MAC_ADDR_2,
elessair 0:f269e3021894 77 MBED_MAC_ADDR_3, MBED_MAC_ADDR_4, MBED_MAC_ADDR_5);
elessair 0:f269e3021894 78 #else
elessair 0:f269e3021894 79 char mac[6];
elessair 0:f269e3021894 80 mbed_mac_address(mac);
elessair 0:f269e3021894 81 snprintf(mac_addr, 19, "%02x:%02x:%02x:%02x:%02x:%02x", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
elessair 0:f269e3021894 82 #endif
elessair 0:f269e3021894 83 }
elessair 0:f269e3021894 84
elessair 0:f269e3021894 85 int EthernetInterface::init() {
elessair 0:f269e3021894 86 use_dhcp = true;
elessair 0:f269e3021894 87 set_mac_address();
elessair 0:f269e3021894 88 init_netif(NULL, NULL, NULL);
elessair 0:f269e3021894 89 return 0;
elessair 0:f269e3021894 90 }
elessair 0:f269e3021894 91
elessair 0:f269e3021894 92 int EthernetInterface::init(const char* ip, const char* mask, const char* gateway) {
elessair 0:f269e3021894 93 use_dhcp = false;
elessair 0:f269e3021894 94
elessair 0:f269e3021894 95 set_mac_address();
elessair 0:f269e3021894 96 strcpy(ip_addr, ip);
elessair 0:f269e3021894 97
elessair 0:f269e3021894 98 ip_addr_t ip_n, mask_n, gateway_n;
elessair 0:f269e3021894 99 inet_aton(ip, &ip_n);
elessair 0:f269e3021894 100 inet_aton(mask, &mask_n);
elessair 0:f269e3021894 101 inet_aton(gateway, &gateway_n);
elessair 0:f269e3021894 102 init_netif(&ip_n, &mask_n, &gateway_n);
elessair 0:f269e3021894 103
elessair 0:f269e3021894 104 return 0;
elessair 0:f269e3021894 105 }
elessair 0:f269e3021894 106
elessair 0:f269e3021894 107 int EthernetInterface::connect(unsigned int timeout_ms) {
elessair 0:f269e3021894 108 eth_arch_enable_interrupts();
elessair 0:f269e3021894 109
elessair 0:f269e3021894 110 int inited;
elessair 0:f269e3021894 111 if (use_dhcp) {
elessair 0:f269e3021894 112 dhcp_start(&netif);
elessair 0:f269e3021894 113
elessair 0:f269e3021894 114 // Wait for an IP Address
elessair 0:f269e3021894 115 // -1: error, 0: timeout
elessair 0:f269e3021894 116 inited = netif_up.wait(timeout_ms);
elessair 0:f269e3021894 117 } else {
elessair 0:f269e3021894 118 netif_set_up(&netif);
elessair 0:f269e3021894 119
elessair 0:f269e3021894 120 // Wait for the link up
elessair 0:f269e3021894 121 inited = netif_linked.wait(timeout_ms);
elessair 0:f269e3021894 122 }
elessair 0:f269e3021894 123
elessair 0:f269e3021894 124 return (inited > 0) ? (0) : (-1);
elessair 0:f269e3021894 125 }
elessair 0:f269e3021894 126
elessair 0:f269e3021894 127 int EthernetInterface::disconnect() {
elessair 0:f269e3021894 128 if (use_dhcp) {
elessair 0:f269e3021894 129 dhcp_release(&netif);
elessair 0:f269e3021894 130 dhcp_stop(&netif);
elessair 0:f269e3021894 131 } else {
elessair 0:f269e3021894 132 netif_set_down(&netif);
elessair 0:f269e3021894 133 }
elessair 0:f269e3021894 134
elessair 0:f269e3021894 135 eth_arch_disable_interrupts();
elessair 0:f269e3021894 136
elessair 0:f269e3021894 137 return 0;
elessair 0:f269e3021894 138 }
elessair 0:f269e3021894 139
elessair 0:f269e3021894 140 char* EthernetInterface::getMACAddress() {
elessair 0:f269e3021894 141 return mac_addr;
elessair 0:f269e3021894 142 }
elessair 0:f269e3021894 143
elessair 0:f269e3021894 144 char* EthernetInterface::getIPAddress() {
elessair 0:f269e3021894 145 return ip_addr;
elessair 0:f269e3021894 146 }
elessair 0:f269e3021894 147
elessair 0:f269e3021894 148 char* EthernetInterface::getGateway() {
elessair 0:f269e3021894 149 return gateway;
elessair 0:f269e3021894 150 }
elessair 0:f269e3021894 151
elessair 0:f269e3021894 152 char* EthernetInterface::getNetworkMask() {
elessair 0:f269e3021894 153 return networkmask;
elessair 0:f269e3021894 154 }
elessair 0:f269e3021894 155
elessair 0:f269e3021894 156