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NetServices/drv/eth/eth_drv.cpp@1:41024576e6e2, 2011-05-30 (annotated)

Committer:: mbed714
Date:: Mon May 30 15:06:52 2011 +0000
Revision:: 1:41024576e6e2
Parent:: 0:55680e5cc478

Who changed what in which revision?

User	Revision	Line number	New contents of line
mbed714	0:55680e5cc478	1
mbed714	0:55680e5cc478	2	/*
mbed714	0:55680e5cc478	3	Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
mbed714	0:55680e5cc478	4
mbed714	0:55680e5cc478	5	Permission is hereby granted, free of charge, to any person obtaining a copy
mbed714	0:55680e5cc478	6	of this software and associated documentation files (the "Software"), to deal
mbed714	0:55680e5cc478	7	in the Software without restriction, including without limitation the rights
mbed714	0:55680e5cc478	8	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
mbed714	0:55680e5cc478	9	copies of the Software, and to permit persons to whom the Software is
mbed714	0:55680e5cc478	10	furnished to do so, subject to the following conditions:
mbed714	0:55680e5cc478	11
mbed714	0:55680e5cc478	12	The above copyright notice and this permission notice shall be included in
mbed714	0:55680e5cc478	13	all copies or substantial portions of the Software.
mbed714	0:55680e5cc478	14
mbed714	0:55680e5cc478	15	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
mbed714	0:55680e5cc478	16	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
mbed714	0:55680e5cc478	17	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
mbed714	0:55680e5cc478	18	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
mbed714	0:55680e5cc478	19	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
mbed714	0:55680e5cc478	20	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
mbed714	0:55680e5cc478	21	THE SOFTWARE.
mbed714	0:55680e5cc478	22	*/
mbed714	0:55680e5cc478	23
mbed714	0:55680e5cc478	24	#include "netCfg.h"
mbed714	0:55680e5cc478	25	#if NET_ETH
mbed714	0:55680e5cc478	26
mbed714	0:55680e5cc478	27	#include "mbed.h"
mbed714	0:55680e5cc478	28
mbed714	0:55680e5cc478	29	Ethernet *pEth = NULL;
mbed714	0:55680e5cc478	30	#ifdef __cplusplus
mbed714	0:55680e5cc478	31	extern "C" {
mbed714	0:55680e5cc478	32	#endif
mbed714	0:55680e5cc478	33
mbed714	0:55680e5cc478	34	#include "lwip/opt.h"
mbed714	0:55680e5cc478	35
mbed714	0:55680e5cc478	36	#include "lwip/def.h"
mbed714	0:55680e5cc478	37	#include "lwip/pbuf.h"
mbed714	0:55680e5cc478	38	#include "lwip/sys.h"
mbed714	0:55680e5cc478	39	#include "lwip/stats.h"
mbed714	0:55680e5cc478	40	#include "netif/etharp.h"
mbed714	0:55680e5cc478	41	#include "string.h"
mbed714	0:55680e5cc478	42
mbed714	0:55680e5cc478	43	//#include "eth_drv.h"
mbed714	0:55680e5cc478	44
mbed714	0:55680e5cc478	45	#define IFNAME0 'E'
mbed714	0:55680e5cc478	46	#define IFNAME1 'X'
mbed714	0:55680e5cc478	47
mbed714	0:55680e5cc478	48	#define min(x,y) (((x)<(y))?(x):(y))
mbed714	0:55680e5cc478	49
mbed714	0:55680e5cc478	50	struct netif* eth_netif;
mbed714	0:55680e5cc478	51
mbed714	0:55680e5cc478	52	static err_t eth_output(struct netif netif, struct pbuf p) {
mbed714	0:55680e5cc478	53	#if ETH_PAD_SIZE
mbed714	0:55680e5cc478	54	pbuf_header(p, -ETH_PAD_SIZE); /* drop the padding word */
mbed714	0:55680e5cc478	55	#endif
mbed714	0:55680e5cc478	56
mbed714	0:55680e5cc478	57	do {
mbed714	0:55680e5cc478	58	pEth->write((const char *)p->payload, p->len);
mbed714	0:55680e5cc478	59	} while((p = p->next)!=NULL);
mbed714	0:55680e5cc478	60
mbed714	0:55680e5cc478	61	pEth->send();
mbed714	0:55680e5cc478	62
mbed714	0:55680e5cc478	63	#if ETH_PAD_SIZE
mbed714	0:55680e5cc478	64	pbuf_header(p, ETH_PAD_SIZE); /* reclaim the padding word */
mbed714	0:55680e5cc478	65	#endif
mbed714	0:55680e5cc478	66
mbed714	0:55680e5cc478	67	LINK_STATS_INC(link.xmit);
mbed714	0:55680e5cc478	68	return ERR_OK;
mbed714	0:55680e5cc478	69	}
mbed714	0:55680e5cc478	70
mbed714	1:41024576e6e2	71	bool broadcast(char *buf) {
mbed714	1:41024576e6e2	72	return ((buf[0] == 0xff) &&
mbed714	1:41024576e6e2	73	(buf[1] == 0xff) &&
mbed714	1:41024576e6e2	74	(buf[2] == 0xff) &&
mbed714	1:41024576e6e2	75	(buf[3] == 0xff) &&
mbed714	1:41024576e6e2	76	(buf[4] == 0xff) &&
mbed714	1:41024576e6e2	77	(buf[5] == 0xff));
mbed714	1:41024576e6e2	78	}
mbed714	1:41024576e6e2	79
mbed714	0:55680e5cc478	80	void show(char *buf, int size) {
mbed714	1:41024576e6e2	81
mbed714	1:41024576e6e2	82	if (htons((short)buf[12]) == 0x0800 && !broadcast(buf)) {
mbed714	1:41024576e6e2	83	printf("Destination: %02hx:%02hx:%02hx:%02hx:%02hx:%02hx \| ",
mbed714	0:55680e5cc478	84	buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]);
mbed714	1:41024576e6e2	85	printf("Source: %02hx:%02hx:%02hx:%02hx:%02hx:%02hx \| ",
mbed714	0:55680e5cc478	86	buf[6], buf[7], buf[8], buf[9], buf[10], buf[11]);
mbed714	0:55680e5cc478	87
mbed714	1:41024576e6e2	88	printf("Type %hx\n", htons((short)buf[12]));
mbed714	1:41024576e6e2	89	}
mbed714	0:55680e5cc478	90	// hexview(buf, size);
mbed714	0:55680e5cc478	91	}
mbed714	0:55680e5cc478	92
mbed714	0:55680e5cc478	93	void eth_poll() {
mbed714	0:55680e5cc478	94	struct eth_hdr *ethhdr;
mbed714	0:55680e5cc478	95	struct pbuf frame, p;
mbed714	0:55680e5cc478	96	int len, read;
mbed714	0:55680e5cc478	97
mbed714	0:55680e5cc478	98	while((len = pEth->receive()) != 0) {
mbed714	0:55680e5cc478	99	frame = pbuf_alloc(PBUF_RAW, len, PBUF_POOL);
mbed714	0:55680e5cc478	100	if(frame == NULL) {
mbed714	0:55680e5cc478	101	return;
mbed714	0:55680e5cc478	102	}
mbed714	0:55680e5cc478	103	p = frame;
mbed714	0:55680e5cc478	104	/* no packet could be read, silently ignore this */
mbed714	0:55680e5cc478	105	if (p == NULL) return;
mbed714	0:55680e5cc478	106	do {
mbed714	0:55680e5cc478	107	read = pEth->read((char *)p->payload, p->len);
mbed714	0:55680e5cc478	108	p = p->next;
mbed714	0:55680e5cc478	109	} while(p != NULL && read != 0);
mbed714	0:55680e5cc478	110
mbed714	0:55680e5cc478	111	#if ETH_PAD_SIZE
mbed714	0:55680e5cc478	112	pbuf_header(p, ETH_PAD_SIZE);
mbed714	0:55680e5cc478	113	#endif
mbed714	0:55680e5cc478	114
mbed714	0:55680e5cc478	115	ethhdr = (struct eth_hdr *)(frame->payload);
mbed714	0:55680e5cc478	116
mbed714	1:41024576e6e2	117	show((char*)ethhdr, 13);
mbed714	0:55680e5cc478	118
mbed714	0:55680e5cc478	119	/*
mbed714	0:55680e5cc478	120	switch(htons(ethhdr->type)) {
mbed714	0:55680e5cc478	121
mbed714	0:55680e5cc478	122	case ETHTYPE_IP:
mbed714	0:55680e5cc478	123	etharp_ip_input(gnetif, frame);
mbed714	0:55680e5cc478	124	pbuf_header(frame, -((s16_t) sizeof(struct eth_hdr)));
mbed714	0:55680e5cc478	125	gnetif->input(frame, gnetif);
mbed714	0:55680e5cc478	126	break;
mbed714	0:55680e5cc478	127
mbed714	0:55680e5cc478	128	case ETHTYPE_ARP:
mbed714	0:55680e5cc478	129	etharp_arp_input(gnetif, (struct eth_addr *)(gnetif->hwaddr), frame);
mbed714	0:55680e5cc478	130	break;
mbed714	0:55680e5cc478	131
mbed714	0:55680e5cc478	132	default:
mbed714	0:55680e5cc478	133	break;
mbed714	0:55680e5cc478	134	}*/
mbed714	0:55680e5cc478	135
mbed714	0:55680e5cc478	136
mbed714	0:55680e5cc478	137
mbed714	0:55680e5cc478	138	//ethernet_input(frame, gnetif);
mbed714	0:55680e5cc478	139
mbed714	0:55680e5cc478	140	switch (htons(ethhdr->type)) {
mbed714	0:55680e5cc478	141	/* IP or ARP packet? */
mbed714	0:55680e5cc478	142	case ETHTYPE_IP:
mbed714	0:55680e5cc478	143	case ETHTYPE_ARP:
mbed714	0:55680e5cc478	144	#if PPPOE_SUPPORT
mbed714	0:55680e5cc478	145	/* PPPoE packet? */
mbed714	0:55680e5cc478	146	case ETHTYPE_PPPOEDISC:
mbed714	0:55680e5cc478	147	case ETHTYPE_PPPOE:
mbed714	0:55680e5cc478	148	#endif /* PPPOE_SUPPORT */
mbed714	0:55680e5cc478	149	/* full packet send to tcpip_thread to process */
mbed714	0:55680e5cc478	150	//if (netif->input(p, gnetif)!=ERR_OK)
mbed714	0:55680e5cc478	151	if (ethernet_input(frame, eth_netif)!=ERR_OK)
mbed714	0:55680e5cc478	152	{ LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_input: IP input error\n"));
mbed714	0:55680e5cc478	153	pbuf_free(frame);
mbed714	0:55680e5cc478	154	frame = NULL;
mbed714	0:55680e5cc478	155	}
mbed714	0:55680e5cc478	156	break;
mbed714	0:55680e5cc478	157
mbed714	0:55680e5cc478	158	default:
mbed714	0:55680e5cc478	159	pbuf_free(frame);
mbed714	0:55680e5cc478	160	frame = NULL;
mbed714	0:55680e5cc478	161	break;
mbed714	0:55680e5cc478	162	}
mbed714	0:55680e5cc478	163
mbed714	0:55680e5cc478	164	/* pbuf_free(frame); */
mbed714	0:55680e5cc478	165	}
mbed714	0:55680e5cc478	166
mbed714	0:55680e5cc478	167
mbed714	0:55680e5cc478	168
mbed714	0:55680e5cc478	169
mbed714	0:55680e5cc478	170	}
mbed714	0:55680e5cc478	171
mbed714	0:55680e5cc478	172	err_t eth_init(struct netif *netif) {
mbed714	0:55680e5cc478	173	LWIP_ASSERT("netif != NULL", (netif != NULL));
mbed714	0:55680e5cc478	174
mbed714	0:55680e5cc478	175	NETIF_INIT_SNMP(netif, snmp_ifType_ethernet_csmacd, 0x2EA);
mbed714	0:55680e5cc478	176
mbed714	0:55680e5cc478	177	/* maximum transfer unit */
mbed714	0:55680e5cc478	178	netif->mtu = 0x2EA;
mbed714	0:55680e5cc478	179
mbed714	0:55680e5cc478	180	/* device capabilities */
mbed714	0:55680e5cc478	181	/* don't set NETIF_FLAG_ETHARP if this device is not an ethernet one */
mbed714	0:55680e5cc478	182	netif->flags = NETIF_FLAG_BROADCAST \| NETIF_FLAG_ETHARP \| NETIF_FLAG_LINK_UP \| NETIF_FLAG_IGMP;
mbed714	0:55680e5cc478	183
mbed714	0:55680e5cc478	184	netif->state = NULL;
mbed714	0:55680e5cc478	185	eth_netif = netif;
mbed714	0:55680e5cc478	186
mbed714	0:55680e5cc478	187	netif->name[0] = IFNAME0;
mbed714	0:55680e5cc478	188	netif->name[1] = IFNAME1;
mbed714	0:55680e5cc478	189
mbed714	0:55680e5cc478	190	/* We directly use etharp_output() here to save a function call.
mbed714	0:55680e5cc478	191	* You can instead declare your own function an call etharp_output()
mbed714	0:55680e5cc478	192	* from it if you have to do some checks before sending (e.g. if link
mbed714	0:55680e5cc478	193	* is available...) */
mbed714	0:55680e5cc478	194	netif->output = etharp_output;
mbed714	0:55680e5cc478	195	netif->linkoutput = eth_output;
mbed714	0:55680e5cc478	196
mbed714	0:55680e5cc478	197	if (!pEth) pEth = new Ethernet(); // only create Ethernet object if required
mbed714	0:55680e5cc478	198
mbed714	0:55680e5cc478	199	return ERR_OK;
mbed714	0:55680e5cc478	200	}
mbed714	0:55680e5cc478	201
mbed714	0:55680e5cc478	202	void eth_free()
mbed714	0:55680e5cc478	203	{
mbed714	0:55680e5cc478	204	if(pEth)
mbed714	0:55680e5cc478	205	delete pEth;
mbed714	0:55680e5cc478	206	pEth = NULL;
mbed714	0:55680e5cc478	207	}
mbed714	0:55680e5cc478	208
mbed714	0:55680e5cc478	209	void eth_address(char* mac) {
mbed714	0:55680e5cc478	210	pEth->address(mac);
mbed714	0:55680e5cc478	211	}
mbed714	0:55680e5cc478	212
mbed714	0:55680e5cc478	213	Ethernet* eth_interface() {
mbed714	0:55680e5cc478	214	return pEth;
mbed714	0:55680e5cc478	215	}
mbed714	0:55680e5cc478	216
mbed714	0:55680e5cc478	217	#ifdef __cplusplus
mbed714	0:55680e5cc478	218	};
mbed714	0:55680e5cc478	219	#endif
mbed714	0:55680e5cc478	220
mbed714	0:55680e5cc478	221	#endif

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	30 May 2011
Imports:	7
Forks:	0
Commits:	2
Dependents:	0
Dependencies:	1
Followers:	1

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NetServices/drv/eth/eth_drv.cpp@1:41024576e6e2, 2011-05-30 (annotated)

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NetServices/drv/eth/eth_drv.cpp@1:41024576e6e2, 2011-05-30 (annotated)

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