Yann Garcia / Mbed 2 deprecated DS130x_I2CApp

This short program illustrates how to use the DS130x_I2C library. My objective is to share the same RTC with Microchip 18F MCU.

Dependencies:   mbed DebugLibrary

NetServices/drv/eth/eth_drv.cpp@0:f30e2135b0db, 2011-02-09 (annotated)

Committer:
Yann
Date:
Wed Feb 09 13:57:49 2011 +0000
Revision:
0:f30e2135b0db
V0.0.0.1

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Yann 0:f30e2135b0db 1
Yann 0:f30e2135b0db 2 /*
Yann 0:f30e2135b0db 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
Yann 0:f30e2135b0db 4
Yann 0:f30e2135b0db 5 Permission is hereby granted, free of charge, to any person obtaining a copy
Yann 0:f30e2135b0db 6 of this software and associated documentation files (the "Software"), to deal
Yann 0:f30e2135b0db 7 in the Software without restriction, including without limitation the rights
Yann 0:f30e2135b0db 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
Yann 0:f30e2135b0db 9 copies of the Software, and to permit persons to whom the Software is
Yann 0:f30e2135b0db 10 furnished to do so, subject to the following conditions:
Yann 0:f30e2135b0db 11
Yann 0:f30e2135b0db 12 The above copyright notice and this permission notice shall be included in
Yann 0:f30e2135b0db 13 all copies or substantial portions of the Software.
Yann 0:f30e2135b0db 14
Yann 0:f30e2135b0db 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
Yann 0:f30e2135b0db 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
Yann 0:f30e2135b0db 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
Yann 0:f30e2135b0db 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
Yann 0:f30e2135b0db 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
Yann 0:f30e2135b0db 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
Yann 0:f30e2135b0db 21 THE SOFTWARE.
Yann 0:f30e2135b0db 22 */
Yann 0:f30e2135b0db 23
Yann 0:f30e2135b0db 24 #include "netCfg.h"
Yann 0:f30e2135b0db 25 #if NET_ETH
Yann 0:f30e2135b0db 26
Yann 0:f30e2135b0db 27 #include "mbed.h"
Yann 0:f30e2135b0db 28
Yann 0:f30e2135b0db 29 Ethernet *pEth = NULL;
Yann 0:f30e2135b0db 30 #ifdef __cplusplus
Yann 0:f30e2135b0db 31 extern "C" {
Yann 0:f30e2135b0db 32 #endif
Yann 0:f30e2135b0db 33
Yann 0:f30e2135b0db 34 #include "lwip/opt.h"
Yann 0:f30e2135b0db 35
Yann 0:f30e2135b0db 36 #include "lwip/def.h"
Yann 0:f30e2135b0db 37 #include "lwip/pbuf.h"
Yann 0:f30e2135b0db 38 #include "lwip/sys.h"
Yann 0:f30e2135b0db 39 #include "lwip/stats.h"
Yann 0:f30e2135b0db 40 #include "netif/etharp.h"
Yann 0:f30e2135b0db 41 #include "string.h"
Yann 0:f30e2135b0db 42
Yann 0:f30e2135b0db 43 //#include "eth_drv.h"
Yann 0:f30e2135b0db 44
Yann 0:f30e2135b0db 45 #define IFNAME0 'E'
Yann 0:f30e2135b0db 46 #define IFNAME1 'X'
Yann 0:f30e2135b0db 47
Yann 0:f30e2135b0db 48 #define min(x,y) (((x)<(y))?(x):(y))
Yann 0:f30e2135b0db 49
Yann 0:f30e2135b0db 50 struct netif* eth_netif;
Yann 0:f30e2135b0db 51
Yann 0:f30e2135b0db 52 static err_t eth_output(struct netif *netif, struct pbuf *p) {
Yann 0:f30e2135b0db 53 #if ETH_PAD_SIZE
Yann 0:f30e2135b0db 54 pbuf_header(p, -ETH_PAD_SIZE); /* drop the padding word */
Yann 0:f30e2135b0db 55 #endif
Yann 0:f30e2135b0db 56
Yann 0:f30e2135b0db 57 do {
Yann 0:f30e2135b0db 58 pEth->write((const char *)p->payload, p->len);
Yann 0:f30e2135b0db 59 } while((p = p->next)!=NULL);
Yann 0:f30e2135b0db 60
Yann 0:f30e2135b0db 61 pEth->send();
Yann 0:f30e2135b0db 62
Yann 0:f30e2135b0db 63 #if ETH_PAD_SIZE
Yann 0:f30e2135b0db 64 pbuf_header(p, ETH_PAD_SIZE); /* reclaim the padding word */
Yann 0:f30e2135b0db 65 #endif
Yann 0:f30e2135b0db 66
Yann 0:f30e2135b0db 67 LINK_STATS_INC(link.xmit);
Yann 0:f30e2135b0db 68 return ERR_OK;
Yann 0:f30e2135b0db 69 }
Yann 0:f30e2135b0db 70
Yann 0:f30e2135b0db 71 /*
Yann 0:f30e2135b0db 72 void show(char *buf, int size) {
Yann 0:f30e2135b0db 73 printf("Destination: %02hx:%02hx:%02hx:%02hx:%02hx:%02hx\n",
Yann 0:f30e2135b0db 74 buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]);
Yann 0:f30e2135b0db 75 printf("Source: %02hx:%02hx:%02hx:%02hx:%02hx:%02hx\n",
Yann 0:f30e2135b0db 76 buf[6], buf[7], buf[8], buf[9], buf[10], buf[11]);
Yann 0:f30e2135b0db 77
Yann 0:f30e2135b0db 78 printf("Type %hd\n", htons((short)buf[12]));
Yann 0:f30e2135b0db 79
Yann 0:f30e2135b0db 80 // hexview(buf, size);
Yann 0:f30e2135b0db 81 }
Yann 0:f30e2135b0db 82 */
Yann 0:f30e2135b0db 83
Yann 0:f30e2135b0db 84 void eth_poll() {
Yann 0:f30e2135b0db 85 struct eth_hdr *ethhdr;
Yann 0:f30e2135b0db 86 struct pbuf *frame, *p;
Yann 0:f30e2135b0db 87 int len, read;
Yann 0:f30e2135b0db 88
Yann 0:f30e2135b0db 89 while((len = pEth->receive()) != 0) {
Yann 0:f30e2135b0db 90 frame = pbuf_alloc(PBUF_RAW, len, PBUF_POOL);
Yann 0:f30e2135b0db 91 if(frame == NULL) {
Yann 0:f30e2135b0db 92 return;
Yann 0:f30e2135b0db 93 }
Yann 0:f30e2135b0db 94 p = frame;
Yann 0:f30e2135b0db 95 /* no packet could be read, silently ignore this */
Yann 0:f30e2135b0db 96 if (p == NULL) return;
Yann 0:f30e2135b0db 97 do {
Yann 0:f30e2135b0db 98 read = pEth->read((char *)p->payload, p->len);
Yann 0:f30e2135b0db 99 p = p->next;
Yann 0:f30e2135b0db 100 } while(p != NULL && read != 0);
Yann 0:f30e2135b0db 101
Yann 0:f30e2135b0db 102 #if ETH_PAD_SIZE
Yann 0:f30e2135b0db 103 pbuf_header(p, ETH_PAD_SIZE);
Yann 0:f30e2135b0db 104 #endif
Yann 0:f30e2135b0db 105
Yann 0:f30e2135b0db 106 ethhdr = (struct eth_hdr *)(frame->payload);
Yann 0:f30e2135b0db 107
Yann 0:f30e2135b0db 108 // show((char*)ethhdr, 13);
Yann 0:f30e2135b0db 109
Yann 0:f30e2135b0db 110 /*
Yann 0:f30e2135b0db 111 switch(htons(ethhdr->type)) {
Yann 0:f30e2135b0db 112
Yann 0:f30e2135b0db 113 case ETHTYPE_IP:
Yann 0:f30e2135b0db 114 etharp_ip_input(gnetif, frame);
Yann 0:f30e2135b0db 115 pbuf_header(frame, -((s16_t) sizeof(struct eth_hdr)));
Yann 0:f30e2135b0db 116 gnetif->input(frame, gnetif);
Yann 0:f30e2135b0db 117 break;
Yann 0:f30e2135b0db 118
Yann 0:f30e2135b0db 119 case ETHTYPE_ARP:
Yann 0:f30e2135b0db 120 etharp_arp_input(gnetif, (struct eth_addr *)(gnetif->hwaddr), frame);
Yann 0:f30e2135b0db 121 break;
Yann 0:f30e2135b0db 122
Yann 0:f30e2135b0db 123 default:
Yann 0:f30e2135b0db 124 break;
Yann 0:f30e2135b0db 125 }*/
Yann 0:f30e2135b0db 126
Yann 0:f30e2135b0db 127
Yann 0:f30e2135b0db 128
Yann 0:f30e2135b0db 129 //ethernet_input(frame, gnetif);
Yann 0:f30e2135b0db 130
Yann 0:f30e2135b0db 131 switch (htons(ethhdr->type)) {
Yann 0:f30e2135b0db 132 /* IP or ARP packet? */
Yann 0:f30e2135b0db 133 case ETHTYPE_IP:
Yann 0:f30e2135b0db 134 case ETHTYPE_ARP:
Yann 0:f30e2135b0db 135 #if PPPOE_SUPPORT
Yann 0:f30e2135b0db 136 /* PPPoE packet? */
Yann 0:f30e2135b0db 137 case ETHTYPE_PPPOEDISC:
Yann 0:f30e2135b0db 138 case ETHTYPE_PPPOE:
Yann 0:f30e2135b0db 139 #endif /* PPPOE_SUPPORT */
Yann 0:f30e2135b0db 140 /* full packet send to tcpip_thread to process */
Yann 0:f30e2135b0db 141 //if (netif->input(p, gnetif)!=ERR_OK)
Yann 0:f30e2135b0db 142 if (ethernet_input(frame, eth_netif)!=ERR_OK)
Yann 0:f30e2135b0db 143 { LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_input: IP input error\n"));
Yann 0:f30e2135b0db 144 pbuf_free(frame);
Yann 0:f30e2135b0db 145 frame = NULL;
Yann 0:f30e2135b0db 146 }
Yann 0:f30e2135b0db 147 break;
Yann 0:f30e2135b0db 148
Yann 0:f30e2135b0db 149 default:
Yann 0:f30e2135b0db 150 pbuf_free(frame);
Yann 0:f30e2135b0db 151 frame = NULL;
Yann 0:f30e2135b0db 152 break;
Yann 0:f30e2135b0db 153 }
Yann 0:f30e2135b0db 154
Yann 0:f30e2135b0db 155 /* pbuf_free(frame); */
Yann 0:f30e2135b0db 156 }
Yann 0:f30e2135b0db 157
Yann 0:f30e2135b0db 158
Yann 0:f30e2135b0db 159
Yann 0:f30e2135b0db 160
Yann 0:f30e2135b0db 161 }
Yann 0:f30e2135b0db 162
Yann 0:f30e2135b0db 163 err_t eth_init(struct netif *netif) {
Yann 0:f30e2135b0db 164 LWIP_ASSERT("netif != NULL", (netif != NULL));
Yann 0:f30e2135b0db 165
Yann 0:f30e2135b0db 166 NETIF_INIT_SNMP(netif, snmp_ifType_ethernet_csmacd, 0x2EA);
Yann 0:f30e2135b0db 167
Yann 0:f30e2135b0db 168 /* maximum transfer unit */
Yann 0:f30e2135b0db 169 netif->mtu = 0x2EA;
Yann 0:f30e2135b0db 170
Yann 0:f30e2135b0db 171 /* device capabilities */
Yann 0:f30e2135b0db 172 /* don't set NETIF_FLAG_ETHARP if this device is not an ethernet one */
Yann 0:f30e2135b0db 173 netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP | NETIF_FLAG_IGMP;
Yann 0:f30e2135b0db 174
Yann 0:f30e2135b0db 175 netif->state = NULL;
Yann 0:f30e2135b0db 176 eth_netif = netif;
Yann 0:f30e2135b0db 177
Yann 0:f30e2135b0db 178 netif->name[0] = IFNAME0;
Yann 0:f30e2135b0db 179 netif->name[1] = IFNAME1;
Yann 0:f30e2135b0db 180
Yann 0:f30e2135b0db 181 /* We directly use etharp_output() here to save a function call.
Yann 0:f30e2135b0db 182 * You can instead declare your own function an call etharp_output()
Yann 0:f30e2135b0db 183 * from it if you have to do some checks before sending (e.g. if link
Yann 0:f30e2135b0db 184 * is available...) */
Yann 0:f30e2135b0db 185 netif->output = etharp_output;
Yann 0:f30e2135b0db 186 netif->linkoutput = eth_output;
Yann 0:f30e2135b0db 187
Yann 0:f30e2135b0db 188 pEth = new Ethernet();
Yann 0:f30e2135b0db 189
Yann 0:f30e2135b0db 190 return ERR_OK;
Yann 0:f30e2135b0db 191 }
Yann 0:f30e2135b0db 192
Yann 0:f30e2135b0db 193 void eth_free()
Yann 0:f30e2135b0db 194 {
Yann 0:f30e2135b0db 195 if(pEth)
Yann 0:f30e2135b0db 196 delete pEth;
Yann 0:f30e2135b0db 197 pEth = NULL;
Yann 0:f30e2135b0db 198 }
Yann 0:f30e2135b0db 199
Yann 0:f30e2135b0db 200 void eth_address(char* mac) {
Yann 0:f30e2135b0db 201 pEth->address(mac);
Yann 0:f30e2135b0db 202 }
Yann 0:f30e2135b0db 203
Yann 0:f30e2135b0db 204 #ifdef __cplusplus
Yann 0:f30e2135b0db 205 };
Yann 0:f30e2135b0db 206 #endif
Yann 0:f30e2135b0db 207
Yann 0:f30e2135b0db 208 #endif