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NetServices/drv/eth/eth_drv.cpp@0:8cdad1c73e8e, 2012-03-25 (annotated)

Committer:: bfictorie
Date:: Sun Mar 25 17:26:30 2012 +0000
Revision:: 0:8cdad1c73e8e

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User	Revision	Line number	New contents of line
bfictorie	0:8cdad1c73e8e	1
bfictorie	0:8cdad1c73e8e	2	/*
bfictorie	0:8cdad1c73e8e	3	Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
bfictorie	0:8cdad1c73e8e	4
bfictorie	0:8cdad1c73e8e	5	Permission is hereby granted, free of charge, to any person obtaining a copy
bfictorie	0:8cdad1c73e8e	6	of this software and associated documentation files (the "Software"), to deal
bfictorie	0:8cdad1c73e8e	7	in the Software without restriction, including without limitation the rights
bfictorie	0:8cdad1c73e8e	8	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
bfictorie	0:8cdad1c73e8e	9	copies of the Software, and to permit persons to whom the Software is
bfictorie	0:8cdad1c73e8e	10	furnished to do so, subject to the following conditions:
bfictorie	0:8cdad1c73e8e	11
bfictorie	0:8cdad1c73e8e	12	The above copyright notice and this permission notice shall be included in
bfictorie	0:8cdad1c73e8e	13	all copies or substantial portions of the Software.
bfictorie	0:8cdad1c73e8e	14
bfictorie	0:8cdad1c73e8e	15	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
bfictorie	0:8cdad1c73e8e	16	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
bfictorie	0:8cdad1c73e8e	17	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
bfictorie	0:8cdad1c73e8e	18	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
bfictorie	0:8cdad1c73e8e	19	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
bfictorie	0:8cdad1c73e8e	20	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
bfictorie	0:8cdad1c73e8e	21	THE SOFTWARE.
bfictorie	0:8cdad1c73e8e	22	*/
bfictorie	0:8cdad1c73e8e	23
bfictorie	0:8cdad1c73e8e	24	#include "netCfg.h"
bfictorie	0:8cdad1c73e8e	25	#if NET_ETH
bfictorie	0:8cdad1c73e8e	26
bfictorie	0:8cdad1c73e8e	27	#include "mbed.h"
bfictorie	0:8cdad1c73e8e	28
bfictorie	0:8cdad1c73e8e	29	Ethernet *pEth = NULL;
bfictorie	0:8cdad1c73e8e	30	#ifdef __cplusplus
bfictorie	0:8cdad1c73e8e	31	extern "C" {
bfictorie	0:8cdad1c73e8e	32	#endif
bfictorie	0:8cdad1c73e8e	33
bfictorie	0:8cdad1c73e8e	34	#include "lwip/opt.h"
bfictorie	0:8cdad1c73e8e	35
bfictorie	0:8cdad1c73e8e	36	#include "lwip/def.h"
bfictorie	0:8cdad1c73e8e	37	#include "lwip/pbuf.h"
bfictorie	0:8cdad1c73e8e	38	#include "lwip/sys.h"
bfictorie	0:8cdad1c73e8e	39	#include "lwip/stats.h"
bfictorie	0:8cdad1c73e8e	40	#include "netif/etharp.h"
bfictorie	0:8cdad1c73e8e	41	#include "string.h"
bfictorie	0:8cdad1c73e8e	42
bfictorie	0:8cdad1c73e8e	43	//#include "eth_drv.h"
bfictorie	0:8cdad1c73e8e	44
bfictorie	0:8cdad1c73e8e	45	#define IFNAME0 'E'
bfictorie	0:8cdad1c73e8e	46	#define IFNAME1 'X'
bfictorie	0:8cdad1c73e8e	47
bfictorie	0:8cdad1c73e8e	48	#define min(x,y) (((x)<(y))?(x):(y))
bfictorie	0:8cdad1c73e8e	49
bfictorie	0:8cdad1c73e8e	50	struct netif* eth_netif;
bfictorie	0:8cdad1c73e8e	51
bfictorie	0:8cdad1c73e8e	52	static err_t eth_output(struct netif netif, struct pbuf p) {
bfictorie	0:8cdad1c73e8e	53	#if ETH_PAD_SIZE
bfictorie	0:8cdad1c73e8e	54	pbuf_header(p, -ETH_PAD_SIZE); /* drop the padding word */
bfictorie	0:8cdad1c73e8e	55	#endif
bfictorie	0:8cdad1c73e8e	56
bfictorie	0:8cdad1c73e8e	57	do {
bfictorie	0:8cdad1c73e8e	58	pEth->write((const char *)p->payload, p->len);
bfictorie	0:8cdad1c73e8e	59	} while((p = p->next)!=NULL);
bfictorie	0:8cdad1c73e8e	60
bfictorie	0:8cdad1c73e8e	61	pEth->send();
bfictorie	0:8cdad1c73e8e	62
bfictorie	0:8cdad1c73e8e	63	#if ETH_PAD_SIZE
bfictorie	0:8cdad1c73e8e	64	pbuf_header(p, ETH_PAD_SIZE); /* reclaim the padding word */
bfictorie	0:8cdad1c73e8e	65	#endif
bfictorie	0:8cdad1c73e8e	66
bfictorie	0:8cdad1c73e8e	67	LINK_STATS_INC(link.xmit);
bfictorie	0:8cdad1c73e8e	68	return ERR_OK;
bfictorie	0:8cdad1c73e8e	69	}
bfictorie	0:8cdad1c73e8e	70
bfictorie	0:8cdad1c73e8e	71	/*
bfictorie	0:8cdad1c73e8e	72	void show(char *buf, int size) {
bfictorie	0:8cdad1c73e8e	73	printf("Destination: %02hx:%02hx:%02hx:%02hx:%02hx:%02hx\n",
bfictorie	0:8cdad1c73e8e	74	buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]);
bfictorie	0:8cdad1c73e8e	75	printf("Source: %02hx:%02hx:%02hx:%02hx:%02hx:%02hx\n",
bfictorie	0:8cdad1c73e8e	76	buf[6], buf[7], buf[8], buf[9], buf[10], buf[11]);
bfictorie	0:8cdad1c73e8e	77
bfictorie	0:8cdad1c73e8e	78	printf("Type %hd\n", htons((short)buf[12]));
bfictorie	0:8cdad1c73e8e	79
bfictorie	0:8cdad1c73e8e	80	// hexview(buf, size);
bfictorie	0:8cdad1c73e8e	81	}
bfictorie	0:8cdad1c73e8e	82	*/
bfictorie	0:8cdad1c73e8e	83
bfictorie	0:8cdad1c73e8e	84	void eth_poll() {
bfictorie	0:8cdad1c73e8e	85	struct eth_hdr *ethhdr;
bfictorie	0:8cdad1c73e8e	86	struct pbuf frame, p;
bfictorie	0:8cdad1c73e8e	87	int len, read;
bfictorie	0:8cdad1c73e8e	88
bfictorie	0:8cdad1c73e8e	89	while((len = pEth->receive()) != 0) {
bfictorie	0:8cdad1c73e8e	90	frame = pbuf_alloc(PBUF_RAW, len, PBUF_POOL);
bfictorie	0:8cdad1c73e8e	91	if(frame == NULL) {
bfictorie	0:8cdad1c73e8e	92	return;
bfictorie	0:8cdad1c73e8e	93	}
bfictorie	0:8cdad1c73e8e	94	p = frame;
bfictorie	0:8cdad1c73e8e	95	/* no packet could be read, silently ignore this */
bfictorie	0:8cdad1c73e8e	96	if (p == NULL) return;
bfictorie	0:8cdad1c73e8e	97	do {
bfictorie	0:8cdad1c73e8e	98	read = pEth->read((char *)p->payload, p->len);
bfictorie	0:8cdad1c73e8e	99	p = p->next;
bfictorie	0:8cdad1c73e8e	100	} while(p != NULL && read != 0);
bfictorie	0:8cdad1c73e8e	101
bfictorie	0:8cdad1c73e8e	102	#if ETH_PAD_SIZE
bfictorie	0:8cdad1c73e8e	103	pbuf_header(p, ETH_PAD_SIZE);
bfictorie	0:8cdad1c73e8e	104	#endif
bfictorie	0:8cdad1c73e8e	105
bfictorie	0:8cdad1c73e8e	106	ethhdr = (struct eth_hdr *)(frame->payload);
bfictorie	0:8cdad1c73e8e	107
bfictorie	0:8cdad1c73e8e	108	// show((char*)ethhdr, 13);
bfictorie	0:8cdad1c73e8e	109
bfictorie	0:8cdad1c73e8e	110	/*
bfictorie	0:8cdad1c73e8e	111	switch(htons(ethhdr->type)) {
bfictorie	0:8cdad1c73e8e	112
bfictorie	0:8cdad1c73e8e	113	case ETHTYPE_IP:
bfictorie	0:8cdad1c73e8e	114	etharp_ip_input(gnetif, frame);
bfictorie	0:8cdad1c73e8e	115	pbuf_header(frame, -((s16_t) sizeof(struct eth_hdr)));
bfictorie	0:8cdad1c73e8e	116	gnetif->input(frame, gnetif);
bfictorie	0:8cdad1c73e8e	117	break;
bfictorie	0:8cdad1c73e8e	118
bfictorie	0:8cdad1c73e8e	119	case ETHTYPE_ARP:
bfictorie	0:8cdad1c73e8e	120	etharp_arp_input(gnetif, (struct eth_addr *)(gnetif->hwaddr), frame);
bfictorie	0:8cdad1c73e8e	121	break;
bfictorie	0:8cdad1c73e8e	122
bfictorie	0:8cdad1c73e8e	123	default:
bfictorie	0:8cdad1c73e8e	124	break;
bfictorie	0:8cdad1c73e8e	125	}*/
bfictorie	0:8cdad1c73e8e	126
bfictorie	0:8cdad1c73e8e	127
bfictorie	0:8cdad1c73e8e	128
bfictorie	0:8cdad1c73e8e	129	//ethernet_input(frame, gnetif);
bfictorie	0:8cdad1c73e8e	130
bfictorie	0:8cdad1c73e8e	131	switch (htons(ethhdr->type)) {
bfictorie	0:8cdad1c73e8e	132	/* IP or ARP packet? */
bfictorie	0:8cdad1c73e8e	133	case ETHTYPE_IP:
bfictorie	0:8cdad1c73e8e	134	case ETHTYPE_ARP:
bfictorie	0:8cdad1c73e8e	135	#if PPPOE_SUPPORT
bfictorie	0:8cdad1c73e8e	136	/* PPPoE packet? */
bfictorie	0:8cdad1c73e8e	137	case ETHTYPE_PPPOEDISC:
bfictorie	0:8cdad1c73e8e	138	case ETHTYPE_PPPOE:
bfictorie	0:8cdad1c73e8e	139	#endif /* PPPOE_SUPPORT */
bfictorie	0:8cdad1c73e8e	140	/* full packet send to tcpip_thread to process */
bfictorie	0:8cdad1c73e8e	141	//if (netif->input(p, gnetif)!=ERR_OK)
bfictorie	0:8cdad1c73e8e	142	if (ethernet_input(frame, eth_netif)!=ERR_OK)
bfictorie	0:8cdad1c73e8e	143	{ LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_input: IP input error\n"));
bfictorie	0:8cdad1c73e8e	144	pbuf_free(frame);
bfictorie	0:8cdad1c73e8e	145	frame = NULL;
bfictorie	0:8cdad1c73e8e	146	}
bfictorie	0:8cdad1c73e8e	147	break;
bfictorie	0:8cdad1c73e8e	148
bfictorie	0:8cdad1c73e8e	149	default:
bfictorie	0:8cdad1c73e8e	150	pbuf_free(frame);
bfictorie	0:8cdad1c73e8e	151	frame = NULL;
bfictorie	0:8cdad1c73e8e	152	break;
bfictorie	0:8cdad1c73e8e	153	}
bfictorie	0:8cdad1c73e8e	154
bfictorie	0:8cdad1c73e8e	155	/* pbuf_free(frame); */
bfictorie	0:8cdad1c73e8e	156	}
bfictorie	0:8cdad1c73e8e	157
bfictorie	0:8cdad1c73e8e	158
bfictorie	0:8cdad1c73e8e	159
bfictorie	0:8cdad1c73e8e	160
bfictorie	0:8cdad1c73e8e	161	}
bfictorie	0:8cdad1c73e8e	162
bfictorie	0:8cdad1c73e8e	163	err_t eth_init(struct netif *netif) {
bfictorie	0:8cdad1c73e8e	164	LWIP_ASSERT("netif != NULL", (netif != NULL));
bfictorie	0:8cdad1c73e8e	165
bfictorie	0:8cdad1c73e8e	166	NETIF_INIT_SNMP(netif, snmp_ifType_ethernet_csmacd, 0x2EA);
bfictorie	0:8cdad1c73e8e	167
bfictorie	0:8cdad1c73e8e	168	/* maximum transfer unit */
bfictorie	0:8cdad1c73e8e	169	netif->mtu = 0x2EA;
bfictorie	0:8cdad1c73e8e	170
bfictorie	0:8cdad1c73e8e	171	/* device capabilities */
bfictorie	0:8cdad1c73e8e	172	/* don't set NETIF_FLAG_ETHARP if this device is not an ethernet one */
bfictorie	0:8cdad1c73e8e	173	netif->flags = NETIF_FLAG_BROADCAST \| NETIF_FLAG_ETHARP \| NETIF_FLAG_LINK_UP \| NETIF_FLAG_IGMP;
bfictorie	0:8cdad1c73e8e	174
bfictorie	0:8cdad1c73e8e	175	netif->state = NULL;
bfictorie	0:8cdad1c73e8e	176	eth_netif = netif;
bfictorie	0:8cdad1c73e8e	177
bfictorie	0:8cdad1c73e8e	178	netif->name[0] = IFNAME0;
bfictorie	0:8cdad1c73e8e	179	netif->name[1] = IFNAME1;
bfictorie	0:8cdad1c73e8e	180
bfictorie	0:8cdad1c73e8e	181	/* We directly use etharp_output() here to save a function call.
bfictorie	0:8cdad1c73e8e	182	* You can instead declare your own function an call etharp_output()
bfictorie	0:8cdad1c73e8e	183	* from it if you have to do some checks before sending (e.g. if link
bfictorie	0:8cdad1c73e8e	184	* is available...) */
bfictorie	0:8cdad1c73e8e	185	netif->output = etharp_output;
bfictorie	0:8cdad1c73e8e	186	netif->linkoutput = eth_output;
bfictorie	0:8cdad1c73e8e	187
bfictorie	0:8cdad1c73e8e	188	if (!pEth) pEth = new Ethernet(); // only create Ethernet object if required
bfictorie	0:8cdad1c73e8e	189
bfictorie	0:8cdad1c73e8e	190	return ERR_OK;
bfictorie	0:8cdad1c73e8e	191	}
bfictorie	0:8cdad1c73e8e	192
bfictorie	0:8cdad1c73e8e	193	void eth_free()
bfictorie	0:8cdad1c73e8e	194	{
bfictorie	0:8cdad1c73e8e	195	if(pEth)
bfictorie	0:8cdad1c73e8e	196	delete pEth;
bfictorie	0:8cdad1c73e8e	197	pEth = NULL;
bfictorie	0:8cdad1c73e8e	198	}
bfictorie	0:8cdad1c73e8e	199
bfictorie	0:8cdad1c73e8e	200	void eth_address(char* mac) {
bfictorie	0:8cdad1c73e8e	201	pEth->address(mac);
bfictorie	0:8cdad1c73e8e	202	}
bfictorie	0:8cdad1c73e8e	203
bfictorie	0:8cdad1c73e8e	204	Ethernet* eth_interface() {
bfictorie	0:8cdad1c73e8e	205	return pEth;
bfictorie	0:8cdad1c73e8e	206	}
bfictorie	0:8cdad1c73e8e	207
bfictorie	0:8cdad1c73e8e	208	#ifdef __cplusplus
bfictorie	0:8cdad1c73e8e	209	};
bfictorie	0:8cdad1c73e8e	210	#endif
bfictorie	0:8cdad1c73e8e	211
bfictorie	0:8cdad1c73e8e	212	#endif

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	25 Mar 2012
Imports:	10
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	1
Followers:	1

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NetServices/drv/eth/eth_drv.cpp@0:8cdad1c73e8e, 2012-03-25 (annotated)

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NetServices/drv/eth/eth_drv.cpp@0:8cdad1c73e8e, 2012-03-25 (annotated)

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