Fork of the EthernetInterface library by mbed.
Dependencies: Socket lwip-eth lwip-sys lwip
Dependents: internet_clock 4180_Final_Project 4180_Final_Project_WaveProblems 4180_Final_Project ... more
Fork of EthernetInterface by
EthernetInterface.cpp@26:dd9794ce1d64, 2013-02-15 (annotated)
- Committer:
- emilmont
- Date:
- Fri Feb 15 17:01:20 2013 +0000
- Revision:
- 26:dd9794ce1d64
- Parent:
- 22:2a797ba9babe
- Child:
- 27:2124eae946f3
Correct Ethernet initialization with static IP
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
donatien | 4:9a52c802be61 | 1 | /* EthernetInterface.cpp */ |
donatien | 3:f5776537f27f | 2 | /* Copyright (C) 2012 mbed.org, MIT License |
donatien | 3:f5776537f27f | 3 | * |
donatien | 3:f5776537f27f | 4 | * Permission is hereby granted, free of charge, to any person obtaining a copy of this software |
donatien | 3:f5776537f27f | 5 | * and associated documentation files (the "Software"), to deal in the Software without restriction, |
donatien | 3:f5776537f27f | 6 | * including without limitation the rights to use, copy, modify, merge, publish, distribute, |
donatien | 3:f5776537f27f | 7 | * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is |
donatien | 3:f5776537f27f | 8 | * furnished to do so, subject to the following conditions: |
donatien | 3:f5776537f27f | 9 | * |
donatien | 3:f5776537f27f | 10 | * The above copyright notice and this permission notice shall be included in all copies or |
donatien | 3:f5776537f27f | 11 | * substantial portions of the Software. |
donatien | 3:f5776537f27f | 12 | * |
donatien | 3:f5776537f27f | 13 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING |
donatien | 3:f5776537f27f | 14 | * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
donatien | 3:f5776537f27f | 15 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, |
donatien | 3:f5776537f27f | 16 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
donatien | 3:f5776537f27f | 17 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
donatien | 3:f5776537f27f | 18 | */ |
donatien | 3:f5776537f27f | 19 | #include "EthernetInterface.h" |
donatien | 3:f5776537f27f | 20 | |
donatien | 3:f5776537f27f | 21 | #include "lwip/inet.h" |
donatien | 3:f5776537f27f | 22 | #include "lwip/netif.h" |
donatien | 3:f5776537f27f | 23 | #include "netif/etharp.h" |
donatien | 3:f5776537f27f | 24 | #include "lwip/dhcp.h" |
donatien | 3:f5776537f27f | 25 | #include "arch/lpc17_emac.h" |
emilmont | 14:cec293071eed | 26 | #include "lpc_phy.h" |
donatien | 3:f5776537f27f | 27 | #include "lwip/tcpip.h" |
donatien | 3:f5776537f27f | 28 | |
donatien | 3:f5776537f27f | 29 | #include "mbed.h" |
donatien | 3:f5776537f27f | 30 | |
emilmont | 14:cec293071eed | 31 | /* TCP/IP and Network Interface Initialisation */ |
emilmont | 14:cec293071eed | 32 | static struct netif lpcNetif; |
donatien | 3:f5776537f27f | 33 | |
emilmont | 26:dd9794ce1d64 | 34 | static char ip_addr[16] = "\0"; |
emilmont | 26:dd9794ce1d64 | 35 | static bool use_dhcp = false; |
donatien | 3:f5776537f27f | 36 | |
emilmont | 26:dd9794ce1d64 | 37 | static Semaphore tcpip_inited(0); |
emilmont | 26:dd9794ce1d64 | 38 | static Semaphore netif_linked(0); |
emilmont | 26:dd9794ce1d64 | 39 | static Semaphore netif_up(0); |
donatien | 3:f5776537f27f | 40 | |
emilmont | 14:cec293071eed | 41 | static void tcpip_init_done(void *arg) { |
emilmont | 14:cec293071eed | 42 | tcpip_inited.release(); |
emilmont | 14:cec293071eed | 43 | } |
emilmont | 26:dd9794ce1d64 | 44 | |
emilmont | 26:dd9794ce1d64 | 45 | static void netif_link_callback(struct netif *netif) { |
emilmont | 26:dd9794ce1d64 | 46 | if (netif_is_link_up(netif)) { |
emilmont | 26:dd9794ce1d64 | 47 | netif_linked.release(); |
emilmont | 26:dd9794ce1d64 | 48 | } |
emilmont | 26:dd9794ce1d64 | 49 | } |
emilmont | 26:dd9794ce1d64 | 50 | |
emilmont | 14:cec293071eed | 51 | static void netif_status_callback(struct netif *netif) { |
emilmont | 26:dd9794ce1d64 | 52 | if (netif_is_up(netif)) { |
emilmont | 26:dd9794ce1d64 | 53 | strcpy(ip_addr, inet_ntoa(netif->ip_addr)); |
emilmont | 26:dd9794ce1d64 | 54 | netif_up.release(); |
emilmont | 26:dd9794ce1d64 | 55 | } |
emilmont | 14:cec293071eed | 56 | } |
emilmont | 26:dd9794ce1d64 | 57 | |
emilmont | 14:cec293071eed | 58 | static void init_netif(ip_addr_t *ipaddr, ip_addr_t *netmask, ip_addr_t *gw) { |
emilmont | 14:cec293071eed | 59 | tcpip_init(tcpip_init_done, NULL); |
emilmont | 14:cec293071eed | 60 | tcpip_inited.wait(); |
emilmont | 14:cec293071eed | 61 | |
emilmont | 14:cec293071eed | 62 | memset((void*) &lpcNetif, 0, sizeof(lpcNetif)); |
emilmont | 22:2a797ba9babe | 63 | netif_add(&lpcNetif, ipaddr, netmask, gw, NULL, lpc_enetif_init, tcpip_input); |
emilmont | 14:cec293071eed | 64 | netif_set_default(&lpcNetif); |
emilmont | 26:dd9794ce1d64 | 65 | |
emilmont | 26:dd9794ce1d64 | 66 | netif_set_link_callback (&lpcNetif, netif_link_callback); |
emilmont | 14:cec293071eed | 67 | netif_set_status_callback(&lpcNetif, netif_status_callback); |
donatien | 3:f5776537f27f | 68 | } |
donatien | 3:f5776537f27f | 69 | |
emilmont | 14:cec293071eed | 70 | int EthernetInterface::init() { |
emilmont | 14:cec293071eed | 71 | use_dhcp = true; |
emilmont | 14:cec293071eed | 72 | init_netif(NULL, NULL, NULL); |
emilmont | 15:fd9597f1b81b | 73 | return 0; |
donatien | 3:f5776537f27f | 74 | } |
donatien | 3:f5776537f27f | 75 | |
emilmont | 14:cec293071eed | 76 | int EthernetInterface::init(const char* ip, const char* mask, const char* gateway) { |
emilmont | 14:cec293071eed | 77 | use_dhcp = false; |
emilmont | 26:dd9794ce1d64 | 78 | strcpy(ip_addr, ip); |
emilmont | 26:dd9794ce1d64 | 79 | |
emilmont | 14:cec293071eed | 80 | ip_addr_t ip_n, mask_n, gateway_n; |
emilmont | 14:cec293071eed | 81 | inet_aton(ip, &ip_n); |
emilmont | 14:cec293071eed | 82 | inet_aton(mask, &mask_n); |
emilmont | 14:cec293071eed | 83 | inet_aton(gateway, &gateway_n); |
emilmont | 14:cec293071eed | 84 | init_netif(&ip_n, &mask_n, &gateway_n); |
emilmont | 26:dd9794ce1d64 | 85 | |
emilmont | 15:fd9597f1b81b | 86 | return 0; |
donatien | 3:f5776537f27f | 87 | } |
donatien | 3:f5776537f27f | 88 | |
emilmont | 21:8cd2de462559 | 89 | int EthernetInterface::connect(unsigned int timeout_ms) { |
emilmont | 14:cec293071eed | 90 | NVIC_SetPriority(ENET_IRQn, ((0x01 << 3) | 0x01)); |
emilmont | 14:cec293071eed | 91 | NVIC_EnableIRQ(ENET_IRQn); |
emilmont | 14:cec293071eed | 92 | |
emilmont | 26:dd9794ce1d64 | 93 | int inited; |
emilmont | 14:cec293071eed | 94 | if (use_dhcp) { |
emilmont | 14:cec293071eed | 95 | dhcp_start(&lpcNetif); |
emilmont | 26:dd9794ce1d64 | 96 | |
emilmont | 26:dd9794ce1d64 | 97 | // Wait for an IP |
emilmont | 26:dd9794ce1d64 | 98 | // -1: error, 0: timeout |
emilmont | 26:dd9794ce1d64 | 99 | inited = netif_up.wait(timeout_ms); |
emilmont | 14:cec293071eed | 100 | } else { |
emilmont | 14:cec293071eed | 101 | netif_set_up(&lpcNetif); |
emilmont | 26:dd9794ce1d64 | 102 | |
emilmont | 26:dd9794ce1d64 | 103 | // Wait for the link up |
emilmont | 26:dd9794ce1d64 | 104 | inited = netif_linked.wait(timeout_ms); |
emilmont | 14:cec293071eed | 105 | } |
emilmont | 14:cec293071eed | 106 | |
emilmont | 21:8cd2de462559 | 107 | return (inited > 0) ? (0) : (-1); |
donatien | 3:f5776537f27f | 108 | } |
donatien | 3:f5776537f27f | 109 | |
emilmont | 14:cec293071eed | 110 | int EthernetInterface::disconnect() { |
emilmont | 14:cec293071eed | 111 | if (use_dhcp) { |
emilmont | 14:cec293071eed | 112 | dhcp_release(&lpcNetif); |
emilmont | 14:cec293071eed | 113 | dhcp_stop(&lpcNetif); |
emilmont | 14:cec293071eed | 114 | } else { |
emilmont | 14:cec293071eed | 115 | netif_set_down(&lpcNetif); |
emilmont | 14:cec293071eed | 116 | } |
emilmont | 14:cec293071eed | 117 | |
emilmont | 14:cec293071eed | 118 | NVIC_DisableIRQ(ENET_IRQn); |
emilmont | 14:cec293071eed | 119 | |
emilmont | 15:fd9597f1b81b | 120 | return 0; |
donatien | 3:f5776537f27f | 121 | } |
donatien | 3:f5776537f27f | 122 | |
emilmont | 14:cec293071eed | 123 | char* EthernetInterface::getIPAddress() { |
emilmont | 26:dd9794ce1d64 | 124 | return ip_addr; |
emilmont | 14:cec293071eed | 125 | } |