Daniele Lacamera / PicoTCP Featured

Free (GPLv2) TCP/IP stack developed by TASS Belgium

Dependents:   lpc1768-picotcp-demo ZeroMQ_PicoTCP_Publisher_demo TCPSocket_HelloWorld_PicoTCP Pico_TCP_UDP_Test ... more

PicoTCP. Copyright (c) 2013 TASS Belgium NV.

Released under the GNU General Public License, version 2.

Different licensing models may exist, at the sole discretion of the Copyright holders.

Official homepage: http://www.picotcp.com

Bug tracker: https://github.com/tass-belgium/picotcp/issues

Development steps:

  • initial integration with mbed RTOS
  • generic mbed Ethernet driver
  • high performance NXP LPC1768 specific Ethernet driver
  • Multi-threading support for mbed RTOS
  • Berkeley sockets and integration with the New Socket API
  • Fork of the apps running on top of the New Socket API
  • Scheduling optimizations
  • Debugging/benchmarking/testing

Demo application (measuring TCP sender performance):

Import programlpc1768-picotcp-demo

A PicoTCP demo app testing the ethernet throughput on the lpc1768 mbed board.

Last commit 17 May 2013 by TASS Belgium

EthernetInterface/EthernetInterface.cpp@87:d45bc027b06d, 2013-10-07 (annotated)

Committer:
tass
Date:
Mon Oct 07 06:38:59 2013 +0000
Revision:
87:d45bc027b06d
Parent:
53:f3ea2e39a7b2
Parent:
82:93915e13262a
Child:
94:7bdeb5f4d111
Merged 82 and 86.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
daniele 29:1a47b7151851 1 /*
daniele 29:1a47b7151851 2 *
daniele 29:1a47b7151851 3 * PicoTCP Socket interface for mbed.
daniele 29:1a47b7151851 4 * Copyright (C) 2013 TASS Belgium NV
daniele 29:1a47b7151851 5 *
daniele 29:1a47b7151851 6 * Released under GPL v2
daniele 29:1a47b7151851 7 *
daniele 29:1a47b7151851 8 * Other licensing models might apply at the sole discretion of the copyright holders.
daniele 29:1a47b7151851 9 *
daniele 29:1a47b7151851 10 *
daniele 29:1a47b7151851 11 * This software is based on the mbed.org EthernetInterface implementation:
daniele 29:1a47b7151851 12 * Copyright (C) 2012 mbed.org, MIT License
daniele 29:1a47b7151851 13 *
daniele 29:1a47b7151851 14 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
daniele 29:1a47b7151851 15 * and associated documentation files (the "Software"), to deal in the Software without restriction,
daniele 29:1a47b7151851 16 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
daniele 29:1a47b7151851 17 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
daniele 29:1a47b7151851 18 * furnished to do so, subject to the following conditions:
daniele 29:1a47b7151851 19 *
daniele 29:1a47b7151851 20 * The above copyright notice and this permission notice shall be included in all copies or
daniele 29:1a47b7151851 21 * substantial portions of the Software.
daniele 29:1a47b7151851 22 *
daniele 29:1a47b7151851 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
daniele 29:1a47b7151851 24 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
daniele 29:1a47b7151851 25 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
daniele 29:1a47b7151851 26 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
daniele 29:1a47b7151851 27 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
daniele 29:1a47b7151851 28 */
daniele 29:1a47b7151851 29
daniele 29:1a47b7151851 30 #include "EthernetInterface.h"
daniele 29:1a47b7151851 31 #include "Queue.h"
daniele 29:1a47b7151851 32 #include "wrapper.h"
daniele 29:1a47b7151851 33 #include "proxy_endpoint.h"
daniele 29:1a47b7151851 34 #include "pico_dev_mbed_emac.h"
daniele 29:1a47b7151851 35 #include "mbed.h"
daniele 29:1a47b7151851 36 #include "PicoCondition.h"
daniele 29:1a47b7151851 37 extern "C"{
daniele 29:1a47b7151851 38 #include "pico_stack.h"
daniele 29:1a47b7151851 39 #include "pico_config.h"
daniele 29:1a47b7151851 40 #include "cmsis_os.h"
daniele 29:1a47b7151851 41 #include "pico_dhcp_client.h"
daniele 29:1a47b7151851 42 #include "pico_dns_client.h"
daniele 29:1a47b7151851 43
tass 44:ffd9a11d4f95 44 //#define eth_dbg mbed_dbg
tass 42:13e557b44f68 45 #define eth_dbg(...)
tass 42:13e557b44f68 46
daniele 29:1a47b7151851 47 void (*linkCb)(uint32_t link) = NULL;
daniele 29:1a47b7151851 48 }
daniele 29:1a47b7151851 49
daniele 29:1a47b7151851 50 //DigitalOutput led(LED3);
daniele 29:1a47b7151851 51 /* TCP/IP and Network Interface Initialisation */
daniele 29:1a47b7151851 52 static struct pico_device *lpc_eth;
daniele 29:1a47b7151851 53
daniele 29:1a47b7151851 54 static uint32_t dhcp_xid = 0;
daniele 29:1a47b7151851 55 static PicoCondition dhcp_mx;
daniele 29:1a47b7151851 56 static int dhcp_retval = -1;
daniele 29:1a47b7151851 57
daniele 29:1a47b7151851 58 static char mac_addr[19];
daniele 29:1a47b7151851 59 static char ip_addr[17] = "\0";
daniele 29:1a47b7151851 60 static char gw_addr[17] = "\0";
daniele 29:1a47b7151851 61 static bool use_dhcp = false;
daniele 29:1a47b7151851 62 static bool is_initialized = false;
daniele 29:1a47b7151851 63
daniele 29:1a47b7151851 64 static void dhcp_cb(void *cli, int code)
daniele 29:1a47b7151851 65 {
daniele 29:1a47b7151851 66 void *id = NULL;
daniele 29:1a47b7151851 67 struct pico_ip4 address, gateway, zero = {};
tass 41:4c18c62b31b9 68
tass 42:13e557b44f68 69 if (PICO_DHCP_ERROR == code)
daniele 29:1a47b7151851 70 goto fail;
daniele 29:1a47b7151851 71
daniele 29:1a47b7151851 72 id = pico_dhcp_get_identifier(dhcp_xid);
daniele 29:1a47b7151851 73 if (!id)
daniele 29:1a47b7151851 74 goto fail;
daniele 29:1a47b7151851 75 address = pico_dhcp_get_address(id);
daniele 29:1a47b7151851 76 gateway = pico_dhcp_get_gateway(id);
daniele 29:1a47b7151851 77 //if (address) ? // still needed
daniele 29:1a47b7151851 78 pico_ipv4_to_string(ip_addr, address.addr);
tass 53:f3ea2e39a7b2 79 eth_dbg("IP assigned : %s\n",ip_addr);
daniele 29:1a47b7151851 80
daniele 29:1a47b7151851 81 if (gateway.addr != 0) {
daniele 29:1a47b7151851 82 pico_ipv4_to_string(gw_addr, gateway.addr);
tass 53:f3ea2e39a7b2 83 eth_dbg("Default gateway assigned : %s\n",gw_addr);
daniele 29:1a47b7151851 84 pico_ipv4_route_add(zero, zero, gateway, 1, NULL);
daniele 29:1a47b7151851 85 }
tass 43:5f2146814b83 86
tass 43:5f2146814b83 87 dhcp_retval = 0;
daniele 29:1a47b7151851 88 dhcp_mx.unlock();
tass 41:4c18c62b31b9 89
daniele 29:1a47b7151851 90 return;
daniele 29:1a47b7151851 91
daniele 29:1a47b7151851 92 fail:
tass 42:13e557b44f68 93 eth_dbg("DHCP request failed!\n");
daniele 29:1a47b7151851 94 dhcp_retval = -1;
daniele 29:1a47b7151851 95 dhcp_mx.unlock();
daniele 29:1a47b7151851 96 }
daniele 29:1a47b7151851 97
daniele 29:1a47b7151851 98 static void init_eth(void)
daniele 29:1a47b7151851 99 {
daniele 29:1a47b7151851 100 if (!is_initialized) {
daniele 29:1a47b7151851 101 pico_stack_init();
daniele 29:1a47b7151851 102 picotcp_init();
daniele 29:1a47b7151851 103 lpc_eth = pico_emac_create("mbed0");
daniele 29:1a47b7151851 104 is_initialized = true;
daniele 29:1a47b7151851 105 pico_dns_client_init();
daniele 29:1a47b7151851 106 }
daniele 29:1a47b7151851 107 if (lpc_eth) {
daniele 29:1a47b7151851 108 snprintf(mac_addr, 19, "%02X:%02X:%02X:%02X:%02X:%02X", lpc_eth->eth->mac.addr[0], lpc_eth->eth->mac.addr[1],
daniele 29:1a47b7151851 109 lpc_eth->eth->mac.addr[2], lpc_eth->eth->mac.addr[3], lpc_eth->eth->mac.addr[4], lpc_eth->eth->mac.addr[5]);
daniele 29:1a47b7151851 110 }
tass 41:4c18c62b31b9 111
tass 41:4c18c62b31b9 112 if(lpc_eth)
tass 42:13e557b44f68 113 eth_dbg("Ethernet initialized...\n");
tass 41:4c18c62b31b9 114 else
tass 42:13e557b44f68 115 eth_dbg("Failed to start Ethernet...\n");
tass 41:4c18c62b31b9 116
daniele 29:1a47b7151851 117 }
daniele 29:1a47b7151851 118
daniele 29:1a47b7151851 119 int EthernetInterface::init()
daniele 29:1a47b7151851 120 {
daniele 29:1a47b7151851 121 init_eth();
daniele 29:1a47b7151851 122 /* use dhcp to retrieve address and gateway. */
daniele 29:1a47b7151851 123 use_dhcp = true;
daniele 29:1a47b7151851 124 return 0;
daniele 29:1a47b7151851 125 }
daniele 29:1a47b7151851 126
daniele 29:1a47b7151851 127 int EthernetInterface::init(const char* ip, const char* mask, const char* gateway) {
daniele 29:1a47b7151851 128 pico_ip4 pico_addr, pico_netmask, pico_gw = {0}, zero = {0};
daniele 29:1a47b7151851 129
daniele 29:1a47b7151851 130 init_eth();
daniele 29:1a47b7151851 131
daniele 29:1a47b7151851 132 use_dhcp = false;
daniele 29:1a47b7151851 133 strcpy(ip_addr, ip);
daniele 29:1a47b7151851 134
daniele 29:1a47b7151851 135 pico_string_to_ipv4(ip, &pico_addr.addr);
daniele 29:1a47b7151851 136 pico_string_to_ipv4(mask, &pico_netmask.addr);
daniele 29:1a47b7151851 137 if (gateway) {
daniele 29:1a47b7151851 138 pico_string_to_ipv4(ip, &pico_gw.addr);
daniele 29:1a47b7151851 139 }
daniele 29:1a47b7151851 140 pico_ipv4_link_add(lpc_eth, pico_addr, pico_netmask);
daniele 29:1a47b7151851 141
daniele 29:1a47b7151851 142 if (pico_gw.addr)
daniele 29:1a47b7151851 143 pico_ipv4_route_add(zero, zero, pico_gw, 1, NULL);
daniele 29:1a47b7151851 144
daniele 29:1a47b7151851 145 return 0;
daniele 29:1a47b7151851 146 }
daniele 29:1a47b7151851 147
daniele 29:1a47b7151851 148 int EthernetInterface::connect(unsigned int timeout_ms) {
daniele 29:1a47b7151851 149 //dhcp_mx.lock(); do we still need this ?
daniele 29:1a47b7151851 150 if (use_dhcp) {
daniele 29:1a47b7151851 151 if (pico_dhcp_initiate_negotiation(lpc_eth, &dhcp_cb, &dhcp_xid) < 0)
daniele 29:1a47b7151851 152 return -1;
daniele 29:1a47b7151851 153
daniele 29:1a47b7151851 154 dhcp_mx.lock(timeout_ms); // wait for a sign
tass 41:4c18c62b31b9 155
daniele 29:1a47b7151851 156 return dhcp_retval;
daniele 29:1a47b7151851 157
daniele 29:1a47b7151851 158 } else {
daniele 29:1a47b7151851 159 return 0;
daniele 29:1a47b7151851 160 }
daniele 29:1a47b7151851 161 }
daniele 29:1a47b7151851 162
daniele 29:1a47b7151851 163 int EthernetInterface::disconnect() {
daniele 29:1a47b7151851 164 if (use_dhcp) {
daniele 29:1a47b7151851 165 }
daniele 29:1a47b7151851 166 pico_device_destroy(lpc_eth);
daniele 29:1a47b7151851 167 lpc_eth = NULL;
daniele 29:1a47b7151851 168 return 0;
daniele 29:1a47b7151851 169 }
daniele 29:1a47b7151851 170
daniele 29:1a47b7151851 171 char* EthernetInterface::getMACAddress() {
daniele 29:1a47b7151851 172 return mac_addr;
daniele 29:1a47b7151851 173 }
daniele 29:1a47b7151851 174
daniele 29:1a47b7151851 175 char* EthernetInterface::getIPAddress() {
daniele 29:1a47b7151851 176 return ip_addr;
daniele 29:1a47b7151851 177 }
daniele 29:1a47b7151851 178
daniele 29:1a47b7151851 179 int EthernetInterface::registerLinkStatus(void (*cb)(uint32_t linkStatus))
daniele 29:1a47b7151851 180 {
daniele 29:1a47b7151851 181 ::linkCb = cb;
daniele 29:1a47b7151851 182 return 0;
daniele 29:1a47b7151851 183 }
daniele 29:1a47b7151851 184
daniele 29:1a47b7151851 185 int EthernetInterface::setDnsServer(const char * name)
daniele 29:1a47b7151851 186 {
daniele 29:1a47b7151851 187 struct pico_ip4 addr;
daniele 29:1a47b7151851 188 pico_string_to_ipv4(name,&addr.addr);
daniele 29:1a47b7151851 189 return pico_dns_client_nameserver(&addr,PICO_DNS_NS_ADD);
daniele 29:1a47b7151851 190 }