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@7:73a6916d991e, 2012-07-02 (annotated)

Committer:
emilmont
Date:
Mon Jul 02 10:51:59 2012 +0000
Revision:
7:73a6916d991e
Parent:
4:9a52c802be61
Child:
10:8d1c7a87c17b
Do not force debug on the EthernetInterface users, in particular do not change the default settings of their serial port.

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 3:f5776537f27f 20 #define __DEBUG__ 4
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 LwIPInterface::init(); //Init LwIP, NOT including PPP
donatien 3:f5776537f27f 51
donatien 3:f5776537f27f 52 memset((void*)&m_lpcNetif, 0, sizeof(m_lpcNetif));
donatien 3:f5776537f27f 53 netif_add(&m_lpcNetif, NULL, NULL, NULL, NULL, lpc_enetif_init, ethernet_input/*tcpip_input???*/);
donatien 3:f5776537f27f 54 netif_set_default(&m_lpcNetif);
donatien 3:f5776537f27f 55
donatien 3:f5776537f27f 56 netif_set_status_callback(&m_lpcNetif, &EthernetInterface::netifStatusCb);
donatien 3:f5776537f27f 57
donatien 3:f5776537f27f 58 return OK;
donatien 3:f5776537f27f 59 }
donatien 3:f5776537f27f 60
donatien 3:f5776537f27f 61 int EthernetInterface::init(const char* ip, const char* mask, const char* gateway,
donatien 3:f5776537f27f 62 const char* dns1, const char* dns2) //No DHCP
donatien 3:f5776537f27f 63 {
donatien 3:f5776537f27f 64 ip_addr_t ip_n, mask_n, gateway_n, dns1_n, dns2_n;
donatien 3:f5776537f27f 65
donatien 3:f5776537f27f 66 m_useDHCP = false;
donatien 3:f5776537f27f 67
donatien 3:f5776537f27f 68 LwIPInterface::init(); //Init LwIP
donatien 3:f5776537f27f 69
donatien 3:f5776537f27f 70 inet_aton(ip, &ip_n);
donatien 3:f5776537f27f 71 inet_aton(mask, &mask_n);
donatien 3:f5776537f27f 72 inet_aton(gateway, &gateway_n);
donatien 3:f5776537f27f 73 inet_aton(dns1, &dns1_n);
donatien 3:f5776537f27f 74 inet_aton(dns2, &dns2_n);
donatien 3:f5776537f27f 75
donatien 3:f5776537f27f 76 memset((void*)&m_lpcNetif, 0, sizeof(m_lpcNetif));
donatien 3:f5776537f27f 77 netif_add(&m_lpcNetif, &ip_n, &mask_n, &gateway_n, NULL, lpc_enetif_init, ethernet_input/*tcpip_input???*/);
donatien 3:f5776537f27f 78 netif_set_default(&m_lpcNetif);
donatien 3:f5776537f27f 79
donatien 3:f5776537f27f 80 netif_set_status_callback(&m_lpcNetif, &EthernetInterface::netifStatusCb);
donatien 3:f5776537f27f 81
donatien 3:f5776537f27f 82 return OK;
donatien 3:f5776537f27f 83 }
donatien 3:f5776537f27f 84
donatien 3:f5776537f27f 85 int EthernetInterface::connect()
donatien 3:f5776537f27f 86 {
donatien 3:f5776537f27f 87 m_netifStatusSphre.wait(0);
donatien 3:f5776537f27f 88
donatien 3:f5776537f27f 89 NVIC_SetPriority(ENET_IRQn, ((0x01 << 3) | 0x01));
donatien 3:f5776537f27f 90 NVIC_EnableIRQ(ENET_IRQn);
donatien 3:f5776537f27f 91
donatien 3:f5776537f27f 92 if(m_useDHCP)
donatien 3:f5776537f27f 93 {
donatien 3:f5776537f27f 94 dhcp_start(&m_lpcNetif); //The DHCP client will set the interface up once the IP/Netmask/Getway/DNS Servers are recovered
donatien 3:f5776537f27f 95 }
donatien 3:f5776537f27f 96 else
donatien 3:f5776537f27f 97 {
donatien 3:f5776537f27f 98 netif_set_up(&m_lpcNetif); //Set interface up
donatien 3:f5776537f27f 99 }
donatien 3:f5776537f27f 100
donatien 3:f5776537f27f 101 m_netifStatusSphre.wait();
donatien 3:f5776537f27f 102
donatien 3:f5776537f27f 103 return OK;
donatien 3:f5776537f27f 104 }
donatien 3:f5776537f27f 105
donatien 3:f5776537f27f 106 int EthernetInterface::disconnect()
donatien 3:f5776537f27f 107 {
donatien 3:f5776537f27f 108 m_netifStatusSphre.wait(0);
donatien 3:f5776537f27f 109
donatien 3:f5776537f27f 110 if(m_useDHCP)
donatien 3:f5776537f27f 111 {
donatien 3:f5776537f27f 112 dhcp_release(&m_lpcNetif); //Release the lease & bring interface down
donatien 3:f5776537f27f 113 dhcp_stop(&m_lpcNetif);
donatien 3:f5776537f27f 114 }
donatien 3:f5776537f27f 115 else
donatien 3:f5776537f27f 116 {
donatien 3:f5776537f27f 117 netif_set_down(&m_lpcNetif);
donatien 3:f5776537f27f 118 }
donatien 3:f5776537f27f 119
donatien 3:f5776537f27f 120 NVIC_DisableIRQ(ENET_IRQn);
donatien 3:f5776537f27f 121
donatien 3:f5776537f27f 122 m_netifStatusSphre.wait();
donatien 3:f5776537f27f 123
donatien 3:f5776537f27f 124 return OK;
donatien 3:f5776537f27f 125 }
donatien 3:f5776537f27f 126
donatien 3:f5776537f27f 127 /*static*/ void EthernetInterface::netifStatusCb(struct netif *netif)
donatien 3:f5776537f27f 128 {
donatien 3:f5776537f27f 129 EthernetInterface* pIf = (EthernetInterface*)( ((int32_t)netif) + ((int32_t)s_lpcNetifOff) ); //Bad kludge
donatien 3:f5776537f27f 130 pIf->setIPAddress(inet_ntoa(netif->ip_addr));
donatien 3:f5776537f27f 131 pIf->setConnected(netif_is_up(netif)?true:false);
donatien 3:f5776537f27f 132 pIf->m_netifStatusSphre.wait(0); //Clear if pending
donatien 3:f5776537f27f 133 pIf->m_netifStatusSphre.release();
donatien 3:f5776537f27f 134 }
donatien 3:f5776537f27f 135
donatien 3:f5776537f27f 136 /*static*/ int32_t EthernetInterface::s_lpcNetifOff = 0;