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Dependencies:   F7_Ethernet WebSocketClient mbed mcp3008

Fork of Nucleo_F746ZG_Ethernet by Dieter Graef

F7_Ethernet/EthernetInterface.cpp@0:f9b6112278fe, 2016-06-18 (annotated)

Committer:
DieterGraef
Date:
Sat Jun 18 10:49:12 2016 +0000
Revision:
0:f9b6112278fe
Ethernet for the NUCLEO STM32F746 Board Testprogram uses DHCP and NTP to set the clock

Who changed what in which revision?

UserRevisionLine numberNew contents of line
DieterGraef 0:f9b6112278fe 1 /* EthernetInterface.cpp */
DieterGraef 0:f9b6112278fe 2 /* Copyright (C) 2012 mbed.org, MIT License
DieterGraef 0:f9b6112278fe 3 *
DieterGraef 0:f9b6112278fe 4 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
DieterGraef 0:f9b6112278fe 5 * and associated documentation files (the "Software"), to deal in the Software without restriction,
DieterGraef 0:f9b6112278fe 6 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
DieterGraef 0:f9b6112278fe 7 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
DieterGraef 0:f9b6112278fe 8 * furnished to do so, subject to the following conditions:
DieterGraef 0:f9b6112278fe 9 *
DieterGraef 0:f9b6112278fe 10 * The above copyright notice and this permission notice shall be included in all copies or
DieterGraef 0:f9b6112278fe 11 * substantial portions of the Software.
DieterGraef 0:f9b6112278fe 12 *
DieterGraef 0:f9b6112278fe 13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
DieterGraef 0:f9b6112278fe 14 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
DieterGraef 0:f9b6112278fe 15 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
DieterGraef 0:f9b6112278fe 16 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
DieterGraef 0:f9b6112278fe 17 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
DieterGraef 0:f9b6112278fe 18 */
DieterGraef 0:f9b6112278fe 19 #include "EthernetInterface.h"
DieterGraef 0:f9b6112278fe 20
DieterGraef 0:f9b6112278fe 21 #include "lwip/inet.h"
DieterGraef 0:f9b6112278fe 22 #include "lwip/netif.h"
DieterGraef 0:f9b6112278fe 23 #include "netif/etharp.h"
DieterGraef 0:f9b6112278fe 24 #include "lwip/dhcp.h"
DieterGraef 0:f9b6112278fe 25 #include "eth_arch.h"
DieterGraef 0:f9b6112278fe 26 #include "lwip/tcpip.h"
DieterGraef 0:f9b6112278fe 27
DieterGraef 0:f9b6112278fe 28 #include "mbed.h"
DieterGraef 0:f9b6112278fe 29
DieterGraef 0:f9b6112278fe 30 /* TCP/IP and Network Interface Initialisation */
DieterGraef 0:f9b6112278fe 31 static struct netif netif;
DieterGraef 0:f9b6112278fe 32
DieterGraef 0:f9b6112278fe 33 static char mac_addr[19];
DieterGraef 0:f9b6112278fe 34 static char ip_addr[17] = "\0";
DieterGraef 0:f9b6112278fe 35 static char gateway[17] = "\0";
DieterGraef 0:f9b6112278fe 36 static char networkmask[17] = "\0";
DieterGraef 0:f9b6112278fe 37 static bool use_dhcp = false;
DieterGraef 0:f9b6112278fe 38
DieterGraef 0:f9b6112278fe 39 static Semaphore tcpip_inited(0);
DieterGraef 0:f9b6112278fe 40 static Semaphore netif_linked(0);
DieterGraef 0:f9b6112278fe 41 static Semaphore netif_up(0);
DieterGraef 0:f9b6112278fe 42
DieterGraef 0:f9b6112278fe 43 static void tcpip_init_done(void *arg) {
DieterGraef 0:f9b6112278fe 44 tcpip_inited.release();
DieterGraef 0:f9b6112278fe 45 }
DieterGraef 0:f9b6112278fe 46
DieterGraef 0:f9b6112278fe 47 static void netif_link_callback(struct netif *netif) {
DieterGraef 0:f9b6112278fe 48 if (netif_is_link_up(netif)) {
DieterGraef 0:f9b6112278fe 49 netif_linked.release();
DieterGraef 0:f9b6112278fe 50 }
DieterGraef 0:f9b6112278fe 51 }
DieterGraef 0:f9b6112278fe 52
DieterGraef 0:f9b6112278fe 53 static void netif_status_callback(struct netif *netif) {
DieterGraef 0:f9b6112278fe 54 if (netif_is_up(netif)) {
DieterGraef 0:f9b6112278fe 55 strcpy(ip_addr, inet_ntoa(netif->ip_addr));
DieterGraef 0:f9b6112278fe 56 strcpy(gateway, inet_ntoa(netif->gw));
DieterGraef 0:f9b6112278fe 57 strcpy(networkmask, inet_ntoa(netif->netmask));
DieterGraef 0:f9b6112278fe 58 netif_up.release();
DieterGraef 0:f9b6112278fe 59 }
DieterGraef 0:f9b6112278fe 60 }
DieterGraef 0:f9b6112278fe 61
DieterGraef 0:f9b6112278fe 62 static void init_netif(ip_addr_t *ipaddr, ip_addr_t *netmask, ip_addr_t *gw) {
DieterGraef 0:f9b6112278fe 63 tcpip_init(tcpip_init_done, NULL);
DieterGraef 0:f9b6112278fe 64 tcpip_inited.wait();
DieterGraef 0:f9b6112278fe 65
DieterGraef 0:f9b6112278fe 66 memset((void*) &netif, 0, sizeof(netif));
DieterGraef 0:f9b6112278fe 67 netif_add(&netif, ipaddr, netmask, gw, NULL, eth_arch_enetif_init, tcpip_input);
DieterGraef 0:f9b6112278fe 68 netif_set_default(&netif);
DieterGraef 0:f9b6112278fe 69
DieterGraef 0:f9b6112278fe 70 netif_set_link_callback (&netif, netif_link_callback);
DieterGraef 0:f9b6112278fe 71 netif_set_status_callback(&netif, netif_status_callback);
DieterGraef 0:f9b6112278fe 72 }
DieterGraef 0:f9b6112278fe 73
DieterGraef 0:f9b6112278fe 74 static void set_mac_address(void) {
DieterGraef 0:f9b6112278fe 75 #if (MBED_MAC_ADDRESS_SUM != MBED_MAC_ADDR_INTERFACE)
DieterGraef 0:f9b6112278fe 76 snprintf(mac_addr, 19, "%02x:%02x:%02x:%02x:%02x:%02x", MBED_MAC_ADDR_0, MBED_MAC_ADDR_1, MBED_MAC_ADDR_2,
DieterGraef 0:f9b6112278fe 77 MBED_MAC_ADDR_3, MBED_MAC_ADDR_4, MBED_MAC_ADDR_5);
DieterGraef 0:f9b6112278fe 78 #else
DieterGraef 0:f9b6112278fe 79 char mac[6];
DieterGraef 0:f9b6112278fe 80 mbed_mac_address(mac);
DieterGraef 0:f9b6112278fe 81 snprintf(mac_addr, 19, "%02x:%02x:%02x:%02x:%02x:%02x", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
DieterGraef 0:f9b6112278fe 82 #endif
DieterGraef 0:f9b6112278fe 83 }
DieterGraef 0:f9b6112278fe 84
DieterGraef 0:f9b6112278fe 85 int EthernetInterface::init() {
DieterGraef 0:f9b6112278fe 86 use_dhcp = true;
DieterGraef 0:f9b6112278fe 87 set_mac_address();
DieterGraef 0:f9b6112278fe 88 init_netif(NULL, NULL, NULL);
DieterGraef 0:f9b6112278fe 89 return 0;
DieterGraef 0:f9b6112278fe 90 }
DieterGraef 0:f9b6112278fe 91
DieterGraef 0:f9b6112278fe 92 int EthernetInterface::init(const char* ip, const char* mask, const char* gateway) {
DieterGraef 0:f9b6112278fe 93 use_dhcp = false;
DieterGraef 0:f9b6112278fe 94
DieterGraef 0:f9b6112278fe 95 set_mac_address();
DieterGraef 0:f9b6112278fe 96 strcpy(ip_addr, ip);
DieterGraef 0:f9b6112278fe 97
DieterGraef 0:f9b6112278fe 98 ip_addr_t ip_n, mask_n, gateway_n;
DieterGraef 0:f9b6112278fe 99 inet_aton(ip, &ip_n);
DieterGraef 0:f9b6112278fe 100 inet_aton(mask, &mask_n);
DieterGraef 0:f9b6112278fe 101 inet_aton(gateway, &gateway_n);
DieterGraef 0:f9b6112278fe 102 init_netif(&ip_n, &mask_n, &gateway_n);
DieterGraef 0:f9b6112278fe 103
DieterGraef 0:f9b6112278fe 104 return 0;
DieterGraef 0:f9b6112278fe 105 }
DieterGraef 0:f9b6112278fe 106
DieterGraef 0:f9b6112278fe 107 int EthernetInterface::connect(unsigned int timeout_ms) {
DieterGraef 0:f9b6112278fe 108 eth_arch_enable_interrupts();
DieterGraef 0:f9b6112278fe 109
DieterGraef 0:f9b6112278fe 110 int inited;
DieterGraef 0:f9b6112278fe 111 if (use_dhcp) {
DieterGraef 0:f9b6112278fe 112 dhcp_start(&netif);
DieterGraef 0:f9b6112278fe 113
DieterGraef 0:f9b6112278fe 114 // Wait for an IP Address
DieterGraef 0:f9b6112278fe 115 // -1: error, 0: timeout
DieterGraef 0:f9b6112278fe 116 inited = netif_up.wait(timeout_ms);
DieterGraef 0:f9b6112278fe 117 } else {
DieterGraef 0:f9b6112278fe 118 netif_set_up(&netif);
DieterGraef 0:f9b6112278fe 119
DieterGraef 0:f9b6112278fe 120 // Wait for the link up
DieterGraef 0:f9b6112278fe 121 inited = netif_linked.wait(timeout_ms);
DieterGraef 0:f9b6112278fe 122 }
DieterGraef 0:f9b6112278fe 123
DieterGraef 0:f9b6112278fe 124 return (inited > 0) ? (0) : (-1);
DieterGraef 0:f9b6112278fe 125 }
DieterGraef 0:f9b6112278fe 126
DieterGraef 0:f9b6112278fe 127 int EthernetInterface::disconnect() {
DieterGraef 0:f9b6112278fe 128 if (use_dhcp) {
DieterGraef 0:f9b6112278fe 129 dhcp_release(&netif);
DieterGraef 0:f9b6112278fe 130 dhcp_stop(&netif);
DieterGraef 0:f9b6112278fe 131 } else {
DieterGraef 0:f9b6112278fe 132 netif_set_down(&netif);
DieterGraef 0:f9b6112278fe 133 }
DieterGraef 0:f9b6112278fe 134
DieterGraef 0:f9b6112278fe 135 eth_arch_disable_interrupts();
DieterGraef 0:f9b6112278fe 136
DieterGraef 0:f9b6112278fe 137 return 0;
DieterGraef 0:f9b6112278fe 138 }
DieterGraef 0:f9b6112278fe 139
DieterGraef 0:f9b6112278fe 140 char* EthernetInterface::getMACAddress() {
DieterGraef 0:f9b6112278fe 141 return mac_addr;
DieterGraef 0:f9b6112278fe 142 }
DieterGraef 0:f9b6112278fe 143
DieterGraef 0:f9b6112278fe 144 char* EthernetInterface::getIPAddress() {
DieterGraef 0:f9b6112278fe 145 return ip_addr;
DieterGraef 0:f9b6112278fe 146 }
DieterGraef 0:f9b6112278fe 147
DieterGraef 0:f9b6112278fe 148 char* EthernetInterface::getGateway() {
DieterGraef 0:f9b6112278fe 149 return gateway;
DieterGraef 0:f9b6112278fe 150 }
DieterGraef 0:f9b6112278fe 151
DieterGraef 0:f9b6112278fe 152 char* EthernetInterface::getNetworkMask() {
DieterGraef 0:f9b6112278fe 153 return networkmask;
DieterGraef 0:f9b6112278fe 154 }
DieterGraef 0:f9b6112278fe 155
DieterGraef 0:f9b6112278fe 156