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Library for Bert van Dam's book "ARM MICROCONTROLLERS" For all chapters with internet.

Dependencies:   mbed

NetServices/drv/eth/eth_drv.cpp@0:4edb816d21e1, 2015-10-16 (annotated)

Committer:
ICTFBI
Date:
Fri Oct 16 14:28:26 2015 +0000
Revision:
0:4edb816d21e1
Pre-update 16-10-15

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ICTFBI 0:4edb816d21e1 1
ICTFBI 0:4edb816d21e1 2 /*
ICTFBI 0:4edb816d21e1 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
ICTFBI 0:4edb816d21e1 4
ICTFBI 0:4edb816d21e1 5 Permission is hereby granted, free of charge, to any person obtaining a copy
ICTFBI 0:4edb816d21e1 6 of this software and associated documentation files (the "Software"), to deal
ICTFBI 0:4edb816d21e1 7 in the Software without restriction, including without limitation the rights
ICTFBI 0:4edb816d21e1 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
ICTFBI 0:4edb816d21e1 9 copies of the Software, and to permit persons to whom the Software is
ICTFBI 0:4edb816d21e1 10 furnished to do so, subject to the following conditions:
ICTFBI 0:4edb816d21e1 11
ICTFBI 0:4edb816d21e1 12 The above copyright notice and this permission notice shall be included in
ICTFBI 0:4edb816d21e1 13 all copies or substantial portions of the Software.
ICTFBI 0:4edb816d21e1 14
ICTFBI 0:4edb816d21e1 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
ICTFBI 0:4edb816d21e1 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
ICTFBI 0:4edb816d21e1 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
ICTFBI 0:4edb816d21e1 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
ICTFBI 0:4edb816d21e1 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
ICTFBI 0:4edb816d21e1 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
ICTFBI 0:4edb816d21e1 21 THE SOFTWARE.
ICTFBI 0:4edb816d21e1 22 */
ICTFBI 0:4edb816d21e1 23
ICTFBI 0:4edb816d21e1 24 #include "netCfg.h"
ICTFBI 0:4edb816d21e1 25 #if NET_ETH
ICTFBI 0:4edb816d21e1 26
ICTFBI 0:4edb816d21e1 27 #include "mbed.h"
ICTFBI 0:4edb816d21e1 28
ICTFBI 0:4edb816d21e1 29 Ethernet *pEth = NULL;
ICTFBI 0:4edb816d21e1 30 #ifdef __cplusplus
ICTFBI 0:4edb816d21e1 31 extern "C" {
ICTFBI 0:4edb816d21e1 32 #endif
ICTFBI 0:4edb816d21e1 33
ICTFBI 0:4edb816d21e1 34 #include "lwip/opt.h"
ICTFBI 0:4edb816d21e1 35
ICTFBI 0:4edb816d21e1 36 #include "lwip/def.h"
ICTFBI 0:4edb816d21e1 37 #include "lwip/pbuf.h"
ICTFBI 0:4edb816d21e1 38 #include "lwip/sys.h"
ICTFBI 0:4edb816d21e1 39 #include "lwip/stats.h"
ICTFBI 0:4edb816d21e1 40 #include "netif/etharp.h"
ICTFBI 0:4edb816d21e1 41 #include "string.h"
ICTFBI 0:4edb816d21e1 42
ICTFBI 0:4edb816d21e1 43 //#include "eth_drv.h"
ICTFBI 0:4edb816d21e1 44
ICTFBI 0:4edb816d21e1 45 #define IFNAME0 'E'
ICTFBI 0:4edb816d21e1 46 #define IFNAME1 'X'
ICTFBI 0:4edb816d21e1 47
ICTFBI 0:4edb816d21e1 48 #define min(x,y) (((x)<(y))?(x):(y))
ICTFBI 0:4edb816d21e1 49
ICTFBI 0:4edb816d21e1 50 struct netif* eth_netif;
ICTFBI 0:4edb816d21e1 51
ICTFBI 0:4edb816d21e1 52 static err_t eth_output(struct netif *netif, struct pbuf *p) {
ICTFBI 0:4edb816d21e1 53 #if ETH_PAD_SIZE
ICTFBI 0:4edb816d21e1 54 pbuf_header(p, -ETH_PAD_SIZE); /* drop the padding word */
ICTFBI 0:4edb816d21e1 55 #endif
ICTFBI 0:4edb816d21e1 56
ICTFBI 0:4edb816d21e1 57 do {
ICTFBI 0:4edb816d21e1 58 pEth->write((const char *)p->payload, p->len);
ICTFBI 0:4edb816d21e1 59 } while((p = p->next)!=NULL);
ICTFBI 0:4edb816d21e1 60
ICTFBI 0:4edb816d21e1 61 pEth->send();
ICTFBI 0:4edb816d21e1 62
ICTFBI 0:4edb816d21e1 63 #if ETH_PAD_SIZE
ICTFBI 0:4edb816d21e1 64 pbuf_header(p, ETH_PAD_SIZE); /* reclaim the padding word */
ICTFBI 0:4edb816d21e1 65 #endif
ICTFBI 0:4edb816d21e1 66
ICTFBI 0:4edb816d21e1 67 LINK_STATS_INC(link.xmit);
ICTFBI 0:4edb816d21e1 68 return ERR_OK;
ICTFBI 0:4edb816d21e1 69 }
ICTFBI 0:4edb816d21e1 70
ICTFBI 0:4edb816d21e1 71 /*
ICTFBI 0:4edb816d21e1 72 void show(char *buf, int size) {
ICTFBI 0:4edb816d21e1 73 printf("Destination: %02hx:%02hx:%02hx:%02hx:%02hx:%02hx\n",
ICTFBI 0:4edb816d21e1 74 buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]);
ICTFBI 0:4edb816d21e1 75 printf("Source: %02hx:%02hx:%02hx:%02hx:%02hx:%02hx\n",
ICTFBI 0:4edb816d21e1 76 buf[6], buf[7], buf[8], buf[9], buf[10], buf[11]);
ICTFBI 0:4edb816d21e1 77
ICTFBI 0:4edb816d21e1 78 printf("Type %hd\n", htons((short)buf[12]));
ICTFBI 0:4edb816d21e1 79
ICTFBI 0:4edb816d21e1 80 // hexview(buf, size);
ICTFBI 0:4edb816d21e1 81 }
ICTFBI 0:4edb816d21e1 82 */
ICTFBI 0:4edb816d21e1 83
ICTFBI 0:4edb816d21e1 84 void eth_poll() {
ICTFBI 0:4edb816d21e1 85 struct eth_hdr *ethhdr;
ICTFBI 0:4edb816d21e1 86 struct pbuf *frame, *p;
ICTFBI 0:4edb816d21e1 87 int len, read;
ICTFBI 0:4edb816d21e1 88
ICTFBI 0:4edb816d21e1 89 while((len = pEth->receive()) != 0) {
ICTFBI 0:4edb816d21e1 90 frame = pbuf_alloc(PBUF_RAW, len, PBUF_POOL);
ICTFBI 0:4edb816d21e1 91 if(frame == NULL) {
ICTFBI 0:4edb816d21e1 92 return;
ICTFBI 0:4edb816d21e1 93 }
ICTFBI 0:4edb816d21e1 94 p = frame;
ICTFBI 0:4edb816d21e1 95 /* no packet could be read, silently ignore this */
ICTFBI 0:4edb816d21e1 96 if (p == NULL) return;
ICTFBI 0:4edb816d21e1 97 do {
ICTFBI 0:4edb816d21e1 98 read = pEth->read((char *)p->payload, p->len);
ICTFBI 0:4edb816d21e1 99 p = p->next;
ICTFBI 0:4edb816d21e1 100 } while(p != NULL && read != 0);
ICTFBI 0:4edb816d21e1 101
ICTFBI 0:4edb816d21e1 102 #if ETH_PAD_SIZE
ICTFBI 0:4edb816d21e1 103 pbuf_header(p, ETH_PAD_SIZE);
ICTFBI 0:4edb816d21e1 104 #endif
ICTFBI 0:4edb816d21e1 105
ICTFBI 0:4edb816d21e1 106 ethhdr = (struct eth_hdr *)(frame->payload);
ICTFBI 0:4edb816d21e1 107
ICTFBI 0:4edb816d21e1 108 // show((char*)ethhdr, 13);
ICTFBI 0:4edb816d21e1 109
ICTFBI 0:4edb816d21e1 110 /*
ICTFBI 0:4edb816d21e1 111 switch(htons(ethhdr->type)) {
ICTFBI 0:4edb816d21e1 112
ICTFBI 0:4edb816d21e1 113 case ETHTYPE_IP:
ICTFBI 0:4edb816d21e1 114 etharp_ip_input(gnetif, frame);
ICTFBI 0:4edb816d21e1 115 pbuf_header(frame, -((s16_t) sizeof(struct eth_hdr)));
ICTFBI 0:4edb816d21e1 116 gnetif->input(frame, gnetif);
ICTFBI 0:4edb816d21e1 117 break;
ICTFBI 0:4edb816d21e1 118
ICTFBI 0:4edb816d21e1 119 case ETHTYPE_ARP:
ICTFBI 0:4edb816d21e1 120 etharp_arp_input(gnetif, (struct eth_addr *)(gnetif->hwaddr), frame);
ICTFBI 0:4edb816d21e1 121 break;
ICTFBI 0:4edb816d21e1 122
ICTFBI 0:4edb816d21e1 123 default:
ICTFBI 0:4edb816d21e1 124 break;
ICTFBI 0:4edb816d21e1 125 }*/
ICTFBI 0:4edb816d21e1 126
ICTFBI 0:4edb816d21e1 127
ICTFBI 0:4edb816d21e1 128
ICTFBI 0:4edb816d21e1 129 //ethernet_input(frame, gnetif);
ICTFBI 0:4edb816d21e1 130
ICTFBI 0:4edb816d21e1 131 switch (htons(ethhdr->type)) {
ICTFBI 0:4edb816d21e1 132 /* IP or ARP packet? */
ICTFBI 0:4edb816d21e1 133 case ETHTYPE_IP:
ICTFBI 0:4edb816d21e1 134 case ETHTYPE_ARP:
ICTFBI 0:4edb816d21e1 135 #if PPPOE_SUPPORT
ICTFBI 0:4edb816d21e1 136 /* PPPoE packet? */
ICTFBI 0:4edb816d21e1 137 case ETHTYPE_PPPOEDISC:
ICTFBI 0:4edb816d21e1 138 case ETHTYPE_PPPOE:
ICTFBI 0:4edb816d21e1 139 #endif /* PPPOE_SUPPORT */
ICTFBI 0:4edb816d21e1 140 /* full packet send to tcpip_thread to process */
ICTFBI 0:4edb816d21e1 141 //if (netif->input(p, gnetif)!=ERR_OK)
ICTFBI 0:4edb816d21e1 142 if (ethernet_input(frame, eth_netif)!=ERR_OK)
ICTFBI 0:4edb816d21e1 143 { LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_input: IP input error\n"));
ICTFBI 0:4edb816d21e1 144 pbuf_free(frame);
ICTFBI 0:4edb816d21e1 145 frame = NULL;
ICTFBI 0:4edb816d21e1 146 }
ICTFBI 0:4edb816d21e1 147 break;
ICTFBI 0:4edb816d21e1 148
ICTFBI 0:4edb816d21e1 149 default:
ICTFBI 0:4edb816d21e1 150 pbuf_free(frame);
ICTFBI 0:4edb816d21e1 151 frame = NULL;
ICTFBI 0:4edb816d21e1 152 break;
ICTFBI 0:4edb816d21e1 153 }
ICTFBI 0:4edb816d21e1 154
ICTFBI 0:4edb816d21e1 155 /* pbuf_free(frame); */
ICTFBI 0:4edb816d21e1 156 }
ICTFBI 0:4edb816d21e1 157
ICTFBI 0:4edb816d21e1 158
ICTFBI 0:4edb816d21e1 159
ICTFBI 0:4edb816d21e1 160
ICTFBI 0:4edb816d21e1 161 }
ICTFBI 0:4edb816d21e1 162
ICTFBI 0:4edb816d21e1 163 err_t eth_init(struct netif *netif) {
ICTFBI 0:4edb816d21e1 164 LWIP_ASSERT("netif != NULL", (netif != NULL));
ICTFBI 0:4edb816d21e1 165
ICTFBI 0:4edb816d21e1 166 NETIF_INIT_SNMP(netif, snmp_ifType_ethernet_csmacd, 0x2EA);
ICTFBI 0:4edb816d21e1 167
ICTFBI 0:4edb816d21e1 168 /* maximum transfer unit */
ICTFBI 0:4edb816d21e1 169 netif->mtu = 0x2EA;
ICTFBI 0:4edb816d21e1 170
ICTFBI 0:4edb816d21e1 171 /* device capabilities */
ICTFBI 0:4edb816d21e1 172 /* don't set NETIF_FLAG_ETHARP if this device is not an ethernet one */
ICTFBI 0:4edb816d21e1 173 netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP | NETIF_FLAG_IGMP;
ICTFBI 0:4edb816d21e1 174
ICTFBI 0:4edb816d21e1 175 netif->state = NULL;
ICTFBI 0:4edb816d21e1 176 eth_netif = netif;
ICTFBI 0:4edb816d21e1 177
ICTFBI 0:4edb816d21e1 178 netif->name[0] = IFNAME0;
ICTFBI 0:4edb816d21e1 179 netif->name[1] = IFNAME1;
ICTFBI 0:4edb816d21e1 180
ICTFBI 0:4edb816d21e1 181 /* We directly use etharp_output() here to save a function call.
ICTFBI 0:4edb816d21e1 182 * You can instead declare your own function an call etharp_output()
ICTFBI 0:4edb816d21e1 183 * from it if you have to do some checks before sending (e.g. if link
ICTFBI 0:4edb816d21e1 184 * is available...) */
ICTFBI 0:4edb816d21e1 185 netif->output = etharp_output;
ICTFBI 0:4edb816d21e1 186 netif->linkoutput = eth_output;
ICTFBI 0:4edb816d21e1 187
ICTFBI 0:4edb816d21e1 188 if (!pEth) pEth = new Ethernet(); // only create Ethernet object if required
ICTFBI 0:4edb816d21e1 189
ICTFBI 0:4edb816d21e1 190 return ERR_OK;
ICTFBI 0:4edb816d21e1 191 }
ICTFBI 0:4edb816d21e1 192
ICTFBI 0:4edb816d21e1 193 void eth_free()
ICTFBI 0:4edb816d21e1 194 {
ICTFBI 0:4edb816d21e1 195 if(pEth)
ICTFBI 0:4edb816d21e1 196 delete pEth;
ICTFBI 0:4edb816d21e1 197 pEth = NULL;
ICTFBI 0:4edb816d21e1 198 }
ICTFBI 0:4edb816d21e1 199
ICTFBI 0:4edb816d21e1 200 void eth_address(char* mac) {
ICTFBI 0:4edb816d21e1 201 pEth->address(mac);
ICTFBI 0:4edb816d21e1 202 }
ICTFBI 0:4edb816d21e1 203
ICTFBI 0:4edb816d21e1 204 Ethernet* eth_interface() {
ICTFBI 0:4edb816d21e1 205 return pEth;
ICTFBI 0:4edb816d21e1 206 }
ICTFBI 0:4edb816d21e1 207
ICTFBI 0:4edb816d21e1 208 #ifdef __cplusplus
ICTFBI 0:4edb816d21e1 209 };
ICTFBI 0:4edb816d21e1 210 #endif
ICTFBI 0:4edb816d21e1 211
ICTFBI 0:4edb816d21e1 212 #endif