Yi Hao Chen / EthernetInterface

Code and Libraries for Lab 4

Dependencies:   Socket lwip-eth lwip-sys lwip

Fork of EthernetInterface by mbed official

EthernetInterface.cpp@8:dbc8547f882b, 2012-07-03 (annotated)

Committer:
donatien
Date:
Tue Jul 03 12:46:34 2012 +0000
Revision:
8:dbc8547f882b
Parent:
4:9a52c802be61
Child:
10:8d1c7a87c17b
Debug update : does not set 115200bps speed by default

Who changed what in which revision?

UserRevisionLine numberNew 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
donatien 8:dbc8547f882b 20 #define __DEBUG__ 0
donatien 3:f5776537f27f 21 #ifndef __MODULE__
donatien 3:f5776537f27f 22 #define __MODULE__ "EthernetInterface.cpp"
donatien 3:f5776537f27f 23 #endif
donatien 3:f5776537f27f 24
donatien 3:f5776537f27f 25 #include "core/fwk.h"
donatien 3:f5776537f27f 26
donatien 3:f5776537f27f 27 #include "EthernetInterface.h"
donatien 3:f5776537f27f 28
donatien 3:f5776537f27f 29 #include "lwip/inet.h"
donatien 3:f5776537f27f 30 #include "lwip/netif.h"
donatien 3:f5776537f27f 31 #include "netif/etharp.h"
donatien 3:f5776537f27f 32 #include "lwip/dhcp.h"
donatien 3:f5776537f27f 33 #include "arch/lpc17_emac.h"
donatien 3:f5776537f27f 34 #include "lpc_phy.h" /* For the PHY monitor support */
donatien 3:f5776537f27f 35 #include "lwip/tcpip.h"
donatien 3:f5776537f27f 36
donatien 3:f5776537f27f 37 #include "mbed.h"
donatien 3:f5776537f27f 38
donatien 3:f5776537f27f 39
donatien 3:f5776537f27f 40 EthernetInterface::EthernetInterface() : LwIPInterface(), m_lpcNetif(), m_netifStatusSphre(1), m_useDHCP(false)
donatien 3:f5776537f27f 41 {
donatien 3:f5776537f27f 42 s_lpcNetifOff = (int32_t)( ((char*)this) - ((char*)&m_lpcNetif) );
donatien 3:f5776537f27f 43 m_netifStatusSphre.wait(0);
donatien 3:f5776537f27f 44 }
donatien 3:f5776537f27f 45
donatien 3:f5776537f27f 46 int EthernetInterface::init() //With DHCP
donatien 3:f5776537f27f 47 {
donatien 3:f5776537f27f 48 m_useDHCP = true;
donatien 3:f5776537f27f 49
donatien 3:f5776537f27f 50 DBG("Initializing LwIP");
donatien 3:f5776537f27f 51 LwIPInterface::init(); //Init LwIP, NOT including PPP
donatien 3:f5776537f27f 52
donatien 3:f5776537f27f 53 DBG("DHCP IP assignment");
donatien 3:f5776537f27f 54
donatien 3:f5776537f27f 55 memset((void*)&m_lpcNetif, 0, sizeof(m_lpcNetif));
donatien 3:f5776537f27f 56 netif_add(&m_lpcNetif, NULL, NULL, NULL, NULL, lpc_enetif_init, ethernet_input/*tcpip_input???*/);
donatien 3:f5776537f27f 57 netif_set_default(&m_lpcNetif);
donatien 3:f5776537f27f 58
donatien 3:f5776537f27f 59 netif_set_status_callback(&m_lpcNetif, &EthernetInterface::netifStatusCb);
donatien 3:f5776537f27f 60
donatien 3:f5776537f27f 61 return OK;
donatien 3:f5776537f27f 62 }
donatien 3:f5776537f27f 63
donatien 3:f5776537f27f 64 int EthernetInterface::init(const char* ip, const char* mask, const char* gateway,
donatien 3:f5776537f27f 65 const char* dns1, const char* dns2) //No DHCP
donatien 3:f5776537f27f 66 {
donatien 3:f5776537f27f 67 ip_addr_t ip_n, mask_n, gateway_n, dns1_n, dns2_n;
donatien 3:f5776537f27f 68
donatien 3:f5776537f27f 69 m_useDHCP = false;
donatien 3:f5776537f27f 70
donatien 3:f5776537f27f 71 DBG("Initializing LwIP");
donatien 3:f5776537f27f 72 LwIPInterface::init(); //Init LwIP
donatien 3:f5776537f27f 73
donatien 3:f5776537f27f 74 DBG("Static IP assignment");
donatien 3:f5776537f27f 75 inet_aton(ip, &ip_n);
donatien 3:f5776537f27f 76 inet_aton(mask, &mask_n);
donatien 3:f5776537f27f 77 inet_aton(gateway, &gateway_n);
donatien 3:f5776537f27f 78 inet_aton(dns1, &dns1_n);
donatien 3:f5776537f27f 79 inet_aton(dns2, &dns2_n);
donatien 3:f5776537f27f 80
donatien 3:f5776537f27f 81 memset((void*)&m_lpcNetif, 0, sizeof(m_lpcNetif));
donatien 3:f5776537f27f 82 netif_add(&m_lpcNetif, &ip_n, &mask_n, &gateway_n, NULL, lpc_enetif_init, ethernet_input/*tcpip_input???*/);
donatien 3:f5776537f27f 83 netif_set_default(&m_lpcNetif);
donatien 3:f5776537f27f 84
donatien 3:f5776537f27f 85 netif_set_status_callback(&m_lpcNetif, &EthernetInterface::netifStatusCb);
donatien 3:f5776537f27f 86
donatien 3:f5776537f27f 87 return OK;
donatien 3:f5776537f27f 88 }
donatien 3:f5776537f27f 89
donatien 3:f5776537f27f 90 int EthernetInterface::connect()
donatien 3:f5776537f27f 91 {
donatien 3:f5776537f27f 92 m_netifStatusSphre.wait(0);
donatien 3:f5776537f27f 93
donatien 3:f5776537f27f 94 DBG("Enable MAC interrupts");
donatien 3:f5776537f27f 95 NVIC_SetPriority(ENET_IRQn, ((0x01 << 3) | 0x01));
donatien 3:f5776537f27f 96 NVIC_EnableIRQ(ENET_IRQn);
donatien 3:f5776537f27f 97
donatien 3:f5776537f27f 98 if(m_useDHCP)
donatien 3:f5776537f27f 99 {
donatien 3:f5776537f27f 100 dhcp_start(&m_lpcNetif); //The DHCP client will set the interface up once the IP/Netmask/Getway/DNS Servers are recovered
donatien 3:f5776537f27f 101 }
donatien 3:f5776537f27f 102 else
donatien 3:f5776537f27f 103 {
donatien 3:f5776537f27f 104 netif_set_up(&m_lpcNetif); //Set interface up
donatien 3:f5776537f27f 105 }
donatien 3:f5776537f27f 106
donatien 3:f5776537f27f 107 m_netifStatusSphre.wait();
donatien 3:f5776537f27f 108
donatien 3:f5776537f27f 109 DBG("Connected with IP %s", getIPAddress());
donatien 3:f5776537f27f 110
donatien 3:f5776537f27f 111 return OK;
donatien 3:f5776537f27f 112 }
donatien 3:f5776537f27f 113
donatien 3:f5776537f27f 114 int EthernetInterface::disconnect()
donatien 3:f5776537f27f 115 {
donatien 3:f5776537f27f 116 m_netifStatusSphre.wait(0);
donatien 3:f5776537f27f 117
donatien 3:f5776537f27f 118 if(m_useDHCP)
donatien 3:f5776537f27f 119 {
donatien 3:f5776537f27f 120 dhcp_release(&m_lpcNetif); //Release the lease & bring interface down
donatien 3:f5776537f27f 121 dhcp_stop(&m_lpcNetif);
donatien 3:f5776537f27f 122 }
donatien 3:f5776537f27f 123 else
donatien 3:f5776537f27f 124 {
donatien 3:f5776537f27f 125 netif_set_down(&m_lpcNetif);
donatien 3:f5776537f27f 126 }
donatien 3:f5776537f27f 127
donatien 3:f5776537f27f 128 DBG("Disable MAC interrupts");
donatien 3:f5776537f27f 129 NVIC_DisableIRQ(ENET_IRQn);
donatien 3:f5776537f27f 130
donatien 3:f5776537f27f 131 m_netifStatusSphre.wait();
donatien 3:f5776537f27f 132
donatien 3:f5776537f27f 133 return OK;
donatien 3:f5776537f27f 134 }
donatien 3:f5776537f27f 135
donatien 3:f5776537f27f 136 /*static*/ void EthernetInterface::netifStatusCb(struct netif *netif)
donatien 3:f5776537f27f 137 {
donatien 3:f5776537f27f 138 EthernetInterface* pIf = (EthernetInterface*)( ((int32_t)netif) + ((int32_t)s_lpcNetifOff) ); //Bad kludge
donatien 3:f5776537f27f 139 pIf->setIPAddress(inet_ntoa(netif->ip_addr));
donatien 3:f5776537f27f 140 pIf->setConnected(netif_is_up(netif)?true:false);
donatien 3:f5776537f27f 141 pIf->m_netifStatusSphre.wait(0); //Clear if pending
donatien 3:f5776537f27f 142 pIf->m_netifStatusSphre.release();
donatien 3:f5776537f27f 143 }
donatien 3:f5776537f27f 144
donatien 3:f5776537f27f 145 /*static*/ int32_t EthernetInterface::s_lpcNetifOff = 0;