WeatherStation - Web server based weather station using Sparkfun W…

Users » AdamGreen » Code » WeatherStation

Adam Green / Mbed 2 deprecated WeatherStation

Web server based weather station using Sparkfun Weather Meters.

Dependencies: FatFileSystem mbed WeatherMeters SDFileSystem

NetStack/drv/eth/eth_drv.cpp@0:616601bde9fb, 2012-02-23 (annotated)

Committer:: AdamGreen
Date:: Thu Feb 23 21:38:39 2012 +0000
Revision:: 0:616601bde9fb

Who changed what in which revision?

User	Revision	Line number	New contents of line
AdamGreen	0:616601bde9fb	1
AdamGreen	0:616601bde9fb	2	/*
AdamGreen	0:616601bde9fb	3	Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
AdamGreen	0:616601bde9fb	4
AdamGreen	0:616601bde9fb	5	Permission is hereby granted, free of charge, to any person obtaining a copy
AdamGreen	0:616601bde9fb	6	of this software and associated documentation files (the "Software"), to deal
AdamGreen	0:616601bde9fb	7	in the Software without restriction, including without limitation the rights
AdamGreen	0:616601bde9fb	8	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
AdamGreen	0:616601bde9fb	9	copies of the Software, and to permit persons to whom the Software is
AdamGreen	0:616601bde9fb	10	furnished to do so, subject to the following conditions:
AdamGreen	0:616601bde9fb	11
AdamGreen	0:616601bde9fb	12	The above copyright notice and this permission notice shall be included in
AdamGreen	0:616601bde9fb	13	all copies or substantial portions of the Software.
AdamGreen	0:616601bde9fb	14
AdamGreen	0:616601bde9fb	15	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
AdamGreen	0:616601bde9fb	16	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
AdamGreen	0:616601bde9fb	17	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AdamGreen	0:616601bde9fb	18	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
AdamGreen	0:616601bde9fb	19	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
AdamGreen	0:616601bde9fb	20	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
AdamGreen	0:616601bde9fb	21	THE SOFTWARE.
AdamGreen	0:616601bde9fb	22	*/
AdamGreen	0:616601bde9fb	23
AdamGreen	0:616601bde9fb	24	#include "netCfg.h"
AdamGreen	0:616601bde9fb	25	#if NET_ETH
AdamGreen	0:616601bde9fb	26
AdamGreen	0:616601bde9fb	27	#include "mbed.h"
AdamGreen	0:616601bde9fb	28
AdamGreen	0:616601bde9fb	29	Ethernet *pEth = NULL;
AdamGreen	0:616601bde9fb	30	#ifdef __cplusplus
AdamGreen	0:616601bde9fb	31	extern "C" {
AdamGreen	0:616601bde9fb	32	#endif
AdamGreen	0:616601bde9fb	33
AdamGreen	0:616601bde9fb	34	#include "lwip/opt.h"
AdamGreen	0:616601bde9fb	35
AdamGreen	0:616601bde9fb	36	#include "lwip/def.h"
AdamGreen	0:616601bde9fb	37	#include "lwip/pbuf.h"
AdamGreen	0:616601bde9fb	38	#include "lwip/sys.h"
AdamGreen	0:616601bde9fb	39	#include "lwip/stats.h"
AdamGreen	0:616601bde9fb	40	#include "netif/etharp.h"
AdamGreen	0:616601bde9fb	41	#include "string.h"
AdamGreen	0:616601bde9fb	42
AdamGreen	0:616601bde9fb	43	//#include "eth_drv.h"
AdamGreen	0:616601bde9fb	44
AdamGreen	0:616601bde9fb	45	#define IFNAME0 'E'
AdamGreen	0:616601bde9fb	46	#define IFNAME1 'X'
AdamGreen	0:616601bde9fb	47
AdamGreen	0:616601bde9fb	48	#define min(x,y) (((x)<(y))?(x):(y))
AdamGreen	0:616601bde9fb	49
AdamGreen	0:616601bde9fb	50	struct netif* eth_netif;
AdamGreen	0:616601bde9fb	51
AdamGreen	0:616601bde9fb	52	static err_t eth_output(struct netif netif, struct pbuf p) {
AdamGreen	0:616601bde9fb	53	#if ETH_PAD_SIZE
AdamGreen	0:616601bde9fb	54	pbuf_header(p, -ETH_PAD_SIZE); /* drop the padding word */
AdamGreen	0:616601bde9fb	55	#endif
AdamGreen	0:616601bde9fb	56
AdamGreen	0:616601bde9fb	57	do {
AdamGreen	0:616601bde9fb	58	pEth->write((const char *)p->payload, p->len);
AdamGreen	0:616601bde9fb	59	} while((p = p->next)!=NULL);
AdamGreen	0:616601bde9fb	60
AdamGreen	0:616601bde9fb	61	pEth->send();
AdamGreen	0:616601bde9fb	62
AdamGreen	0:616601bde9fb	63	#if ETH_PAD_SIZE
AdamGreen	0:616601bde9fb	64	pbuf_header(p, ETH_PAD_SIZE); /* reclaim the padding word */
AdamGreen	0:616601bde9fb	65	#endif
AdamGreen	0:616601bde9fb	66
AdamGreen	0:616601bde9fb	67	LINK_STATS_INC(link.xmit);
AdamGreen	0:616601bde9fb	68	return ERR_OK;
AdamGreen	0:616601bde9fb	69	}
AdamGreen	0:616601bde9fb	70
AdamGreen	0:616601bde9fb	71	/*
AdamGreen	0:616601bde9fb	72	void show(char *buf, int size) {
AdamGreen	0:616601bde9fb	73	printf("Destination: %02hx:%02hx:%02hx:%02hx:%02hx:%02hx\n",
AdamGreen	0:616601bde9fb	74	buf[0], buf[1], buf[2], buf[3], buf[4], buf[5]);
AdamGreen	0:616601bde9fb	75	printf("Source: %02hx:%02hx:%02hx:%02hx:%02hx:%02hx\n",
AdamGreen	0:616601bde9fb	76	buf[6], buf[7], buf[8], buf[9], buf[10], buf[11]);
AdamGreen	0:616601bde9fb	77
AdamGreen	0:616601bde9fb	78	printf("Type %hd\n", htons((short)buf[12]));
AdamGreen	0:616601bde9fb	79
AdamGreen	0:616601bde9fb	80	// hexview(buf, size);
AdamGreen	0:616601bde9fb	81	}
AdamGreen	0:616601bde9fb	82	*/
AdamGreen	0:616601bde9fb	83
AdamGreen	0:616601bde9fb	84	int eth_poll() {
AdamGreen	0:616601bde9fb	85	int PacketsReceived = 0;
AdamGreen	0:616601bde9fb	86	struct eth_hdr *ethhdr;
AdamGreen	0:616601bde9fb	87	struct pbuf frame, p;
AdamGreen	0:616601bde9fb	88	int len, read;
AdamGreen	0:616601bde9fb	89
AdamGreen	0:616601bde9fb	90	while((len = pEth->receive()) != 0) {
AdamGreen	0:616601bde9fb	91	PacketsReceived++;
AdamGreen	0:616601bde9fb	92	frame = pbuf_alloc(PBUF_RAW, len, PBUF_POOL);
AdamGreen	0:616601bde9fb	93	if(frame == NULL) {
AdamGreen	0:616601bde9fb	94	return PacketsReceived;
AdamGreen	0:616601bde9fb	95	}
AdamGreen	0:616601bde9fb	96	p = frame;
AdamGreen	0:616601bde9fb	97	/* no packet could be read, silently ignore this */
AdamGreen	0:616601bde9fb	98	if (p == NULL) return PacketsReceived;
AdamGreen	0:616601bde9fb	99	do {
AdamGreen	0:616601bde9fb	100	read = pEth->read((char *)p->payload, p->len);
AdamGreen	0:616601bde9fb	101	p = p->next;
AdamGreen	0:616601bde9fb	102	} while(p != NULL && read != 0);
AdamGreen	0:616601bde9fb	103
AdamGreen	0:616601bde9fb	104	/* Ignore this packet if it is too small to contain a valid Ethernet header. */
AdamGreen	0:616601bde9fb	105	if (len < (sizeof(struct eth_hdr) + ETH_PAD_SIZE))
AdamGreen	0:616601bde9fb	106	{
AdamGreen	0:616601bde9fb	107	pbuf_free(frame);
AdamGreen	0:616601bde9fb	108	frame = NULL;
AdamGreen	0:616601bde9fb	109	continue;
AdamGreen	0:616601bde9fb	110	}
AdamGreen	0:616601bde9fb	111
AdamGreen	0:616601bde9fb	112	#if ETH_PAD_SIZE
AdamGreen	0:616601bde9fb	113	pbuf_header(p, ETH_PAD_SIZE);
AdamGreen	0:616601bde9fb	114	#endif
AdamGreen	0:616601bde9fb	115
AdamGreen	0:616601bde9fb	116	ethhdr = (struct eth_hdr *)(frame->payload);
AdamGreen	0:616601bde9fb	117
AdamGreen	0:616601bde9fb	118	switch (htons(ethhdr->type)) {
AdamGreen	0:616601bde9fb	119	/* IP or ARP packet? */
AdamGreen	0:616601bde9fb	120	case ETHTYPE_IP:
AdamGreen	0:616601bde9fb	121	case ETHTYPE_ARP:
AdamGreen	0:616601bde9fb	122	#if PPPOE_SUPPORT
AdamGreen	0:616601bde9fb	123	/* PPPoE packet? */
AdamGreen	0:616601bde9fb	124	case ETHTYPE_PPPOEDISC:
AdamGreen	0:616601bde9fb	125	case ETHTYPE_PPPOE:
AdamGreen	0:616601bde9fb	126	#endif /* PPPOE_SUPPORT */
AdamGreen	0:616601bde9fb	127	/* full packet send to tcpip_thread to process */
AdamGreen	0:616601bde9fb	128	//if (netif->input(p, gnetif)!=ERR_OK)
AdamGreen	0:616601bde9fb	129	if (ethernet_input(frame, eth_netif)!=ERR_OK)
AdamGreen	0:616601bde9fb	130	{ LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_input: IP input error\n"));
AdamGreen	0:616601bde9fb	131	pbuf_free(frame);
AdamGreen	0:616601bde9fb	132	frame = NULL;
AdamGreen	0:616601bde9fb	133	}
AdamGreen	0:616601bde9fb	134	break;
AdamGreen	0:616601bde9fb	135
AdamGreen	0:616601bde9fb	136	default:
AdamGreen	0:616601bde9fb	137	pbuf_free(frame);
AdamGreen	0:616601bde9fb	138	frame = NULL;
AdamGreen	0:616601bde9fb	139	break;
AdamGreen	0:616601bde9fb	140	}
AdamGreen	0:616601bde9fb	141	}
AdamGreen	0:616601bde9fb	142
AdamGreen	0:616601bde9fb	143	return PacketsReceived;
AdamGreen	0:616601bde9fb	144	}
AdamGreen	0:616601bde9fb	145
AdamGreen	0:616601bde9fb	146	err_t eth_init(struct netif *netif) {
AdamGreen	0:616601bde9fb	147	LWIP_ASSERT("netif != NULL", (netif != NULL));
AdamGreen	0:616601bde9fb	148
AdamGreen	0:616601bde9fb	149	NETIF_INIT_SNMP(netif, snmp_ifType_ethernet_csmacd, 0x2EA);
AdamGreen	0:616601bde9fb	150
AdamGreen	0:616601bde9fb	151	/* maximum transfer unit */
AdamGreen	0:616601bde9fb	152	netif->mtu = 0x2EA;
AdamGreen	0:616601bde9fb	153
AdamGreen	0:616601bde9fb	154	/* device capabilities */
AdamGreen	0:616601bde9fb	155	/* don't set NETIF_FLAG_ETHARP if this device is not an ethernet one */
AdamGreen	0:616601bde9fb	156	netif->flags = NETIF_FLAG_BROADCAST \| NETIF_FLAG_ETHARP \| NETIF_FLAG_LINK_UP \| NETIF_FLAG_IGMP;
AdamGreen	0:616601bde9fb	157
AdamGreen	0:616601bde9fb	158	netif->state = NULL;
AdamGreen	0:616601bde9fb	159	eth_netif = netif;
AdamGreen	0:616601bde9fb	160
AdamGreen	0:616601bde9fb	161	netif->name[0] = IFNAME0;
AdamGreen	0:616601bde9fb	162	netif->name[1] = IFNAME1;
AdamGreen	0:616601bde9fb	163
AdamGreen	0:616601bde9fb	164	/* We directly use etharp_output() here to save a function call.
AdamGreen	0:616601bde9fb	165	* You can instead declare your own function an call etharp_output()
AdamGreen	0:616601bde9fb	166	* from it if you have to do some checks before sending (e.g. if link
AdamGreen	0:616601bde9fb	167	* is available...) */
AdamGreen	0:616601bde9fb	168	netif->output = etharp_output;
AdamGreen	0:616601bde9fb	169	netif->linkoutput = eth_output;
AdamGreen	0:616601bde9fb	170
AdamGreen	0:616601bde9fb	171	if (!pEth) pEth = new Ethernet(); // only create Ethernet object if required
AdamGreen	0:616601bde9fb	172
AdamGreen	0:616601bde9fb	173	// UNDONE: Remove. Just for debug
AdamGreen	0:616601bde9fb	174	pEth->set_link(Ethernet::HalfDuplex100);
AdamGreen	0:616601bde9fb	175
AdamGreen	0:616601bde9fb	176	return ERR_OK;
AdamGreen	0:616601bde9fb	177	}
AdamGreen	0:616601bde9fb	178
AdamGreen	0:616601bde9fb	179	void eth_free()
AdamGreen	0:616601bde9fb	180	{
AdamGreen	0:616601bde9fb	181	if(pEth)
AdamGreen	0:616601bde9fb	182	delete pEth;
AdamGreen	0:616601bde9fb	183	pEth = NULL;
AdamGreen	0:616601bde9fb	184	}
AdamGreen	0:616601bde9fb	185
AdamGreen	0:616601bde9fb	186	void eth_address(char* mac) {
AdamGreen	0:616601bde9fb	187	pEth->address(mac);
AdamGreen	0:616601bde9fb	188	}
AdamGreen	0:616601bde9fb	189
AdamGreen	0:616601bde9fb	190	Ethernet* eth_interface() {
AdamGreen	0:616601bde9fb	191	return pEth;
AdamGreen	0:616601bde9fb	192	}
AdamGreen	0:616601bde9fb	193
AdamGreen	0:616601bde9fb	194	#ifdef __cplusplus
AdamGreen	0:616601bde9fb	195	};
AdamGreen	0:616601bde9fb	196	#endif
AdamGreen	0:616601bde9fb	197
AdamGreen	0:616601bde9fb	198	#endif

Repository toolbox

Export to desktop IDE

Build repository

Repository details

Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	23 Feb 2012
Imports:	113
Forks:	0
Commits:	2
Dependents:	0
Dependencies:	4
Followers:	6

NetStack/drv/eth/eth_drv.cpp@0:616601bde9fb, 2012-02-23 (annotated)

Who changed what in which revision?

Repository toolbox

Repository details

Important Information for this Arm website

Access Warning