AmpereMeter - Example self-announcing webserver which controls …

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Dirk-Willem van Gulik (NXP/mbed) / Mbed 2 deprecated AmpereMeter

Example self-announcing webserver which controls a servo through a smallHTML userinterface.

drv/eth/eth_drv.cpp@0:a259777c45a3, 2010-08-14 (annotated)

Committer:: dirkx
Date:: Sat Aug 14 15:56:01 2010 +0000
Revision:: 0:a259777c45a3

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User	Revision	Line number	New contents of line
dirkx	0:a259777c45a3	1
dirkx	0:a259777c45a3	2	/*
dirkx	0:a259777c45a3	3	Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
dirkx	0:a259777c45a3	4
dirkx	0:a259777c45a3	5	Permission is hereby granted, free of charge, to any person obtaining a copy
dirkx	0:a259777c45a3	6	of this software and associated documentation files (the "Software"), to deal
dirkx	0:a259777c45a3	7	in the Software without restriction, including without limitation the rights
dirkx	0:a259777c45a3	8	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
dirkx	0:a259777c45a3	9	copies of the Software, and to permit persons to whom the Software is
dirkx	0:a259777c45a3	10	furnished to do so, subject to the following conditions:
dirkx	0:a259777c45a3	11
dirkx	0:a259777c45a3	12	The above copyright notice and this permission notice shall be included in
dirkx	0:a259777c45a3	13	all copies or substantial portions of the Software.
dirkx	0:a259777c45a3	14
dirkx	0:a259777c45a3	15	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
dirkx	0:a259777c45a3	16	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
dirkx	0:a259777c45a3	17	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
dirkx	0:a259777c45a3	18	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
dirkx	0:a259777c45a3	19	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
dirkx	0:a259777c45a3	20	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
dirkx	0:a259777c45a3	21	THE SOFTWARE.
dirkx	0:a259777c45a3	22	*/
dirkx	0:a259777c45a3	23
dirkx	0:a259777c45a3	24	#include "netCfg.h"
dirkx	0:a259777c45a3	25	#if NET_ETH
dirkx	0:a259777c45a3	26
dirkx	0:a259777c45a3	27	#include "mbed.h"
dirkx	0:a259777c45a3	28
dirkx	0:a259777c45a3	29	Ethernet *pEth = NULL;
dirkx	0:a259777c45a3	30	#ifdef __cplusplus
dirkx	0:a259777c45a3	31	extern "C" {
dirkx	0:a259777c45a3	32	#endif
dirkx	0:a259777c45a3	33
dirkx	0:a259777c45a3	34	#include "lwip/opt.h"
dirkx	0:a259777c45a3	35
dirkx	0:a259777c45a3	36	#include "lwip/def.h"
dirkx	0:a259777c45a3	37	#include "lwip/pbuf.h"
dirkx	0:a259777c45a3	38	#include "lwip/sys.h"
dirkx	0:a259777c45a3	39	#include "lwip/stats.h"
dirkx	0:a259777c45a3	40	#include "netif/etharp.h"
dirkx	0:a259777c45a3	41	#include "string.h"
dirkx	0:a259777c45a3	42
dirkx	0:a259777c45a3	43	//#include "eth_drv.h"
dirkx	0:a259777c45a3	44
dirkx	0:a259777c45a3	45	#define IFNAME0 'E'
dirkx	0:a259777c45a3	46	#define IFNAME1 'X'
dirkx	0:a259777c45a3	47
dirkx	0:a259777c45a3	48	#define min(x,y) (((x)<(y))?(x):(y))
dirkx	0:a259777c45a3	49
dirkx	0:a259777c45a3	50	struct netif* eth_netif;
dirkx	0:a259777c45a3	51
dirkx	0:a259777c45a3	52	static err_t eth_output(struct netif netif, struct pbuf p) {
dirkx	0:a259777c45a3	53	#if ETH_PAD_SIZE
dirkx	0:a259777c45a3	54	pbuf_header(p, -ETH_PAD_SIZE); /* drop the padding word */
dirkx	0:a259777c45a3	55	#endif
dirkx	0:a259777c45a3	56
dirkx	0:a259777c45a3	57	do {
dirkx	0:a259777c45a3	58	pEth->write((const char *)p->payload, p->len);
dirkx	0:a259777c45a3	59	} while((p = p->next)!=NULL);
dirkx	0:a259777c45a3	60
dirkx	0:a259777c45a3	61	pEth->send();
dirkx	0:a259777c45a3	62
dirkx	0:a259777c45a3	63	#if ETH_PAD_SIZE
dirkx	0:a259777c45a3	64	pbuf_header(p, ETH_PAD_SIZE); /* reclaim the padding word */
dirkx	0:a259777c45a3	65	#endif
dirkx	0:a259777c45a3	66
dirkx	0:a259777c45a3	67	LINK_STATS_INC(link.xmit);
dirkx	0:a259777c45a3	68	return ERR_OK;
dirkx	0:a259777c45a3	69	}
dirkx	0:a259777c45a3	70
dirkx	0:a259777c45a3	71	/*
dirkx	0:a259777c45a3	72	void show(char *buf, int size) {
dirkx	0:a259777c45a3	73	printf("Destination: %02hx:%02hx:%02hx:%02hx:%02hx:%02hx\n",
dirkx	0:a259777c45a3	74	buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]);
dirkx	0:a259777c45a3	75	printf("Source: %02hx:%02hx:%02hx:%02hx:%02hx:%02hx\n",
dirkx	0:a259777c45a3	76	buf[6], buf[7], buf[8], buf[9], buf[10], buf[11]);
dirkx	0:a259777c45a3	77
dirkx	0:a259777c45a3	78	printf("Type %hd\n", htons((short)buf[12]));
dirkx	0:a259777c45a3	79
dirkx	0:a259777c45a3	80	// hexview(buf, size);
dirkx	0:a259777c45a3	81	}
dirkx	0:a259777c45a3	82	*/
dirkx	0:a259777c45a3	83
dirkx	0:a259777c45a3	84	void eth_poll() {
dirkx	0:a259777c45a3	85	struct eth_hdr *ethhdr;
dirkx	0:a259777c45a3	86	struct pbuf frame, p;
dirkx	0:a259777c45a3	87	int len, read;
dirkx	0:a259777c45a3	88
dirkx	0:a259777c45a3	89	while((len = pEth->receive()) != 0) {
dirkx	0:a259777c45a3	90	frame = pbuf_alloc(PBUF_RAW, len, PBUF_POOL);
dirkx	0:a259777c45a3	91	if(frame == NULL) {
dirkx	0:a259777c45a3	92	return;
dirkx	0:a259777c45a3	93	}
dirkx	0:a259777c45a3	94	p = frame;
dirkx	0:a259777c45a3	95	/* no packet could be read, silently ignore this */
dirkx	0:a259777c45a3	96	if (p == NULL) return;
dirkx	0:a259777c45a3	97	do {
dirkx	0:a259777c45a3	98	read = pEth->read((char *)p->payload, p->len);
dirkx	0:a259777c45a3	99	p = p->next;
dirkx	0:a259777c45a3	100	} while(p != NULL && read != 0);
dirkx	0:a259777c45a3	101
dirkx	0:a259777c45a3	102	#if ETH_PAD_SIZE
dirkx	0:a259777c45a3	103	pbuf_header(p, ETH_PAD_SIZE);
dirkx	0:a259777c45a3	104	#endif
dirkx	0:a259777c45a3	105
dirkx	0:a259777c45a3	106	ethhdr = (struct eth_hdr *)(frame->payload);
dirkx	0:a259777c45a3	107
dirkx	0:a259777c45a3	108	// show((char*)ethhdr, 13);
dirkx	0:a259777c45a3	109
dirkx	0:a259777c45a3	110	/*
dirkx	0:a259777c45a3	111	switch(htons(ethhdr->type)) {
dirkx	0:a259777c45a3	112
dirkx	0:a259777c45a3	113	case ETHTYPE_IP:
dirkx	0:a259777c45a3	114	etharp_ip_input(gnetif, frame);
dirkx	0:a259777c45a3	115	pbuf_header(frame, -((s16_t) sizeof(struct eth_hdr)));
dirkx	0:a259777c45a3	116	gnetif->input(frame, gnetif);
dirkx	0:a259777c45a3	117	break;
dirkx	0:a259777c45a3	118
dirkx	0:a259777c45a3	119	case ETHTYPE_ARP:
dirkx	0:a259777c45a3	120	etharp_arp_input(gnetif, (struct eth_addr *)(gnetif->hwaddr), frame);
dirkx	0:a259777c45a3	121	break;
dirkx	0:a259777c45a3	122
dirkx	0:a259777c45a3	123	default:
dirkx	0:a259777c45a3	124	break;
dirkx	0:a259777c45a3	125	}*/
dirkx	0:a259777c45a3	126
dirkx	0:a259777c45a3	127
dirkx	0:a259777c45a3	128
dirkx	0:a259777c45a3	129	//ethernet_input(frame, gnetif);
dirkx	0:a259777c45a3	130
dirkx	0:a259777c45a3	131	switch (htons(ethhdr->type)) {
dirkx	0:a259777c45a3	132	/* IP or ARP packet? */
dirkx	0:a259777c45a3	133	case ETHTYPE_IP:
dirkx	0:a259777c45a3	134	case ETHTYPE_ARP:
dirkx	0:a259777c45a3	135	#if PPPOE_SUPPORT
dirkx	0:a259777c45a3	136	/* PPPoE packet? */
dirkx	0:a259777c45a3	137	case ETHTYPE_PPPOEDISC:
dirkx	0:a259777c45a3	138	case ETHTYPE_PPPOE:
dirkx	0:a259777c45a3	139	#endif /* PPPOE_SUPPORT */
dirkx	0:a259777c45a3	140	/* full packet send to tcpip_thread to process */
dirkx	0:a259777c45a3	141	//if (netif->input(p, gnetif)!=ERR_OK)
dirkx	0:a259777c45a3	142	if (ethernet_input(frame, eth_netif)!=ERR_OK)
dirkx	0:a259777c45a3	143	{ LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_input: IP input error\n"));
dirkx	0:a259777c45a3	144	pbuf_free(frame);
dirkx	0:a259777c45a3	145	frame = NULL;
dirkx	0:a259777c45a3	146	}
dirkx	0:a259777c45a3	147	break;
dirkx	0:a259777c45a3	148
dirkx	0:a259777c45a3	149	default:
dirkx	0:a259777c45a3	150	pbuf_free(frame);
dirkx	0:a259777c45a3	151	frame = NULL;
dirkx	0:a259777c45a3	152	break;
dirkx	0:a259777c45a3	153	}
dirkx	0:a259777c45a3	154
dirkx	0:a259777c45a3	155	/* pbuf_free(frame); */
dirkx	0:a259777c45a3	156	}
dirkx	0:a259777c45a3	157
dirkx	0:a259777c45a3	158
dirkx	0:a259777c45a3	159
dirkx	0:a259777c45a3	160
dirkx	0:a259777c45a3	161	}
dirkx	0:a259777c45a3	162
dirkx	0:a259777c45a3	163	err_t eth_init(struct netif *netif) {
dirkx	0:a259777c45a3	164	LWIP_ASSERT("netif != NULL", (netif != NULL));
dirkx	0:a259777c45a3	165
dirkx	0:a259777c45a3	166	NETIF_INIT_SNMP(netif, snmp_ifType_ethernet_csmacd, 0x2EA);
dirkx	0:a259777c45a3	167
dirkx	0:a259777c45a3	168	/* maximum transfer unit */
dirkx	0:a259777c45a3	169	netif->mtu = 0x2EA;
dirkx	0:a259777c45a3	170
dirkx	0:a259777c45a3	171	/* device capabilities */
dirkx	0:a259777c45a3	172	/* don't set NETIF_FLAG_ETHARP if this device is not an ethernet one */
dirkx	0:a259777c45a3	173	netif->flags = NETIF_FLAG_BROADCAST \| NETIF_FLAG_ETHARP \| NETIF_FLAG_LINK_UP;
dirkx	0:a259777c45a3	174
dirkx	0:a259777c45a3	175	netif->state = NULL;
dirkx	0:a259777c45a3	176	eth_netif = netif;
dirkx	0:a259777c45a3	177
dirkx	0:a259777c45a3	178	netif->name[0] = IFNAME0;
dirkx	0:a259777c45a3	179	netif->name[1] = IFNAME1;
dirkx	0:a259777c45a3	180
dirkx	0:a259777c45a3	181	/* We directly use etharp_output() here to save a function call.
dirkx	0:a259777c45a3	182	* You can instead declare your own function an call etharp_output()
dirkx	0:a259777c45a3	183	* from it if you have to do some checks before sending (e.g. if link
dirkx	0:a259777c45a3	184	* is available...) */
dirkx	0:a259777c45a3	185	netif->output = etharp_output;
dirkx	0:a259777c45a3	186	netif->linkoutput = eth_output;
dirkx	0:a259777c45a3	187
dirkx	0:a259777c45a3	188	pEth = new Ethernet();
dirkx	0:a259777c45a3	189
dirkx	0:a259777c45a3	190	return ERR_OK;
dirkx	0:a259777c45a3	191	}
dirkx	0:a259777c45a3	192
dirkx	0:a259777c45a3	193	void eth_free()
dirkx	0:a259777c45a3	194	{
dirkx	0:a259777c45a3	195	if(pEth)
dirkx	0:a259777c45a3	196	delete pEth;
dirkx	0:a259777c45a3	197	pEth = NULL;
dirkx	0:a259777c45a3	198	}
dirkx	0:a259777c45a3	199
dirkx	0:a259777c45a3	200	void eth_address(char* mac) {
dirkx	0:a259777c45a3	201	pEth->address(mac);
dirkx	0:a259777c45a3	202	}
dirkx	0:a259777c45a3	203
dirkx	0:a259777c45a3	204	#ifdef __cplusplus
dirkx	0:a259777c45a3	205	};
dirkx	0:a259777c45a3	206	#endif
dirkx	0:a259777c45a3	207
dirkx	0:a259777c45a3	208	#endif

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	14 Aug 2010
Imports:	49
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	2
Followers:	1

drv/eth/eth_drv.cpp@0:a259777c45a3, 2010-08-14 (annotated)

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