CoOS_LWIP - Quick and dirty CoOS + LWIP ( Webserver )

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Quick and dirty CoOS + LWIP ( Webserver )

main.cpp@0:94897d537b31, 2011-09-10 (annotated)

Committer:: astroboy
Date:: Sat Sep 10 22:41:10 2011 +0000
Revision:: 0:94897d537b31

Who changed what in which revision?

User	Revision	Line number	New contents of line
astroboy	0:94897d537b31	1	#include "lwip/opt.h"
astroboy	0:94897d537b31	2	#include "lwip/stats.h"
astroboy	0:94897d537b31	3	#include "lwip/sys.h"
astroboy	0:94897d537b31	4	#include "lwip/pbuf.h"
astroboy	0:94897d537b31	5	#include "lwip/udp.h"
astroboy	0:94897d537b31	6	#include "lwip/tcp.h"
astroboy	0:94897d537b31	7	#include "lwip/dns.h"
astroboy	0:94897d537b31	8	#include "lwip/dhcp.h"
astroboy	0:94897d537b31	9	#include "lwip/init.h"
astroboy	0:94897d537b31	10	#include "lwip/netif.h"
astroboy	0:94897d537b31	11	#include "netif/etharp.h"
astroboy	0:94897d537b31	12	#include "netif/loopif.h"
astroboy	0:94897d537b31	13	#include "device.h"
astroboy	0:94897d537b31	14
astroboy	0:94897d537b31	15	//#include "stdint.h"
astroboy	0:94897d537b31	16	#include "mbed.h"
astroboy	0:94897d537b31	17	#include "CoOS.h"
astroboy	0:94897d537b31	18
astroboy	0:94897d537b31	19	DigitalOut led1(LED1);
astroboy	0:94897d537b31	20	DigitalOut led2(LED2);
astroboy	0:94897d537b31	21	struct netif lpc17xx_netif;
astroboy	0:94897d537b31	22
astroboy	0:94897d537b31	23	/---------------------------------- Define ---------------------------------/
astroboy	0:94897d537b31	24	#define STK_SIZE 128 /!< Stack size. /
astroboy	0:94897d537b31	25	#define INIT_TASK_PRIO 11 /!< Priority of "init_task" task. /
astroboy	0:94897d537b31	26	#define A_TASK_PRIO 10 /!< Priority of "A" task. /
astroboy	0:94897d537b31	27	#define B_TASK_PRIO 10 /!< Priority of "B" task. /
astroboy	0:94897d537b31	28	#define CLK_TASK_PRIO 10 /!< Priority of "clock" task. /
astroboy	0:94897d537b31	29
astroboy	0:94897d537b31	30	/---------------------------------- Variable Define -------------------------/
astroboy	0:94897d537b31	31	OS_STK init_task_stk[STK_SIZE]; /!< The stack of "init_task" task. /
astroboy	0:94897d537b31	32	OS_STK a_task_stk[STK_SIZE]; /!< The stack of "a" task. /
astroboy	0:94897d537b31	33	OS_STK b_task_stk[STK_SIZE]; /!< The stack of "b" task. /
astroboy	0:94897d537b31	34	OS_STK clk_task_stk[STK_SIZE]; /!< The stack of "clcok" task. /
astroboy	0:94897d537b31	35
astroboy	0:94897d537b31	36	OS_MutexID mut_LED; /!< Mutex id related to LED. /
astroboy	0:94897d537b31	37
astroboy	0:94897d537b31	38	OS_FlagID a_flg;
astroboy	0:94897d537b31	39	OS_FlagID b_flg;
astroboy	0:94897d537b31	40	U8 errInfo[32]; /!< Save error code. /
astroboy	0:94897d537b31	41
astroboy	0:94897d537b31	42	const char *page[] = {
astroboy	0:94897d537b31	43	"HTTP/1.1 200 OK\n"
astroboy	0:94897d537b31	44	"Server:mbed embedded\n"
astroboy	0:94897d537b31	45	"Content-Type: text/html\n"
astroboy	0:94897d537b31	46	"Content-Length: 190\n"
astroboy	0:94897d537b31	47	"\n\n"
astroboy	0:94897d537b31	48	"<html>\r\n"
astroboy	0:94897d537b31	49	" <header>\r\n"
astroboy	0:94897d537b31	50	" <title>Whats up?</title>\r\n"
astroboy	0:94897d537b31	51	" </header>\r\n"
astroboy	0:94897d537b31	52	" <body>\r\n"
astroboy	0:94897d537b31	53	" <h1>Hello World!!11elf</h1>\r\n"
astroboy	0:94897d537b31	54	" <p>Have a greate day.</p>\r\n"
astroboy	0:94897d537b31	55	" <a href=\"/1.html\">turn </a>\r\n"
astroboy	0:94897d537b31	56	" </body>\r\n"
astroboy	0:94897d537b31	57	"</html>\r\n"
astroboy	0:94897d537b31	58	"\n\n"
astroboy	0:94897d537b31	59	,
astroboy	0:94897d537b31	60	"HTTP/1.1 200 OK\r\n"
astroboy	0:94897d537b31	61	"Server:mbed embedded\r\n"
astroboy	0:94897d537b31	62	"Content-Type: text/html\r\n"
astroboy	0:94897d537b31	63	"Content-Length: 178\r\n"
astroboy	0:94897d537b31	64	"\r\n"
astroboy	0:94897d537b31	65	"<html>\r\n"
astroboy	0:94897d537b31	66	" <header>\r\n"
astroboy	0:94897d537b31	67	" <title>LED Power</title>\r\n"
astroboy	0:94897d537b31	68	" </header>\r\n"
astroboy	0:94897d537b31	69	" <body>\r\n"
astroboy	0:94897d537b31	70	" <h1>Lets rotate!!11elf</h1>\r\n"
astroboy	0:94897d537b31	71	" <p>Bam!!!!!!!!!!.</p>\r\n"
astroboy	0:94897d537b31	72	" <a href=\"/\">back</a>\r\n"
astroboy	0:94897d537b31	73	" </body>\r\n"
astroboy	0:94897d537b31	74	"</html>\r\n"
astroboy	0:94897d537b31	75	"\r\n"
astroboy	0:94897d537b31	76	};
astroboy	0:94897d537b31	77
astroboy	0:94897d537b31	78
astroboy	0:94897d537b31	79	err_t recv_callback(void arg, struct tcp_pcb pcb, struct pbuf *p, err_t err) {
astroboy	0:94897d537b31	80	int i,x;
astroboy	0:94897d537b31	81	char *data;
astroboy	0:94897d537b31	82
astroboy	0:94897d537b31	83	/* Check if status is ok and data is arrived. */
astroboy	0:94897d537b31	84	if (err == ERR_OK && p != NULL) {
astroboy	0:94897d537b31	85	/* Inform TCP that we have taken the data. */
astroboy	0:94897d537b31	86	tcp_recved(pcb, p->tot_len);
astroboy	0:94897d537b31	87	data = static_cast<char *>(p->payload);
astroboy	0:94897d537b31	88
astroboy	0:94897d537b31	89	/* If the data is a GET request we can handle it. */
astroboy	0:94897d537b31	90	if (strncmp(data, "GET ", 4) == 0) {
astroboy	0:94897d537b31	91	for (i = 0; i < 40; i++) {
astroboy	0:94897d537b31	92	if (((char *)data + 4)[i] == ' ' \|\|
astroboy	0:94897d537b31	93	((char *)data + 4)[i] == '\r' \|\|
astroboy	0:94897d537b31	94	((char *)data + 4)[i] == '\n') {
astroboy	0:94897d537b31	95	((char *)data + 4)[i] = 0;
astroboy	0:94897d537b31	96	}
astroboy	0:94897d537b31	97	}
astroboy	0:94897d537b31	98
astroboy	0:94897d537b31	99	/* Check the URL */
astroboy	0:94897d537b31	100	/* We only know two URLs /1.html and default */
astroboy	0:94897d537b31	101	/* store the URL information in our global x variable to change twinkle behaviour. */
astroboy	0:94897d537b31	102	x = (strncmp((char *)(data + 4), "/1.html", 7) == 0)? 1: 0;
astroboy	0:94897d537b31	103	/* Clean up the Memory */
astroboy	0:94897d537b31	104	pbuf_free(p);
astroboy	0:94897d537b31	105
astroboy	0:94897d537b31	106	/* Send the right page as answere. */
astroboy	0:94897d537b31	107	if (tcp_write(pcb, (void *)page[x], strlen(page[x]), 1) != ERR_OK) {
astroboy	0:94897d537b31	108	//error("Could not write", 0);
astroboy	0:94897d537b31	109	}
astroboy	0:94897d537b31	110	} else {
astroboy	0:94897d537b31	111	/* No data arrived */
astroboy	0:94897d537b31	112	/* That means the client closes the connection and sent us a packet with FIN flag set to 1. */
astroboy	0:94897d537b31	113	/* We have to cleanup and destroy out TCPConnection. */
astroboy	0:94897d537b31	114	pbuf_free(p);
astroboy	0:94897d537b31	115	}
astroboy	0:94897d537b31	116	}
astroboy	0:94897d537b31	117
astroboy	0:94897d537b31	118	/* Don't panic! Everything is fine. */
astroboy	0:94897d537b31	119	return ERR_OK;
astroboy	0:94897d537b31	120	}
astroboy	0:94897d537b31	121
astroboy	0:94897d537b31	122	/* Accept an incomming call on the registered port */
astroboy	0:94897d537b31	123	err_t accept_callback(void arg, struct tcp_pcb npcb, err_t err) {
astroboy	0:94897d537b31	124	LWIP_UNUSED_ARG(arg);
astroboy	0:94897d537b31	125	/* Subscribe a receive callback function */
astroboy	0:94897d537b31	126	tcp_recv(npcb, &recv_callback);
astroboy	0:94897d537b31	127
astroboy	0:94897d537b31	128	/* Don't panic! Everything is fine. */
astroboy	0:94897d537b31	129	return ERR_OK;
astroboy	0:94897d537b31	130	}
astroboy	0:94897d537b31	131
astroboy	0:94897d537b31	132	void taskB (void *pdata) {
astroboy	0:94897d537b31	133	for (;;) {
astroboy	0:94897d537b31	134	led1 = !led1;
astroboy	0:94897d537b31	135	CoTickDelay(200);
astroboy	0:94897d537b31	136	}
astroboy	0:94897d537b31	137	}
astroboy	0:94897d537b31	138
astroboy	0:94897d537b31	139	void taskA (void *pdata) {
astroboy	0:94897d537b31	140	printf("starting task\n");
astroboy	0:94897d537b31	141	unsigned char x = 0;
astroboy	0:94897d537b31	142	struct ip_addr ipaddr, netmask, gw;
astroboy	0:94897d537b31	143	char *hostname = "Dichi";
astroboy	0:94897d537b31	144	struct netif *netif = &lpc17xx_netif;
astroboy	0:94897d537b31	145	//Ticker tickFast, tickSlow, tickARP, eth_tick, dns_tick, dhcp_coarse, dhcp_fine;
astroboy	0:94897d537b31	146
astroboy	0:94897d537b31	147	//lpc17xx_netif = (netif *)mem_malloc(sizeof(struct netif));
astroboy	0:94897d537b31	148
astroboy	0:94897d537b31	149	IP4_ADDR(&gw, 0,0,0,0);
astroboy	0:94897d537b31	150	IP4_ADDR(&ipaddr, 0,0,0,0);
astroboy	0:94897d537b31	151	IP4_ADDR(&netmask, 255,255,255,255);
astroboy	0:94897d537b31	152	lwip_init();
astroboy	0:94897d537b31	153
astroboy	0:94897d537b31	154	netif->hwaddr_len = ETHARP_HWADDR_LEN;
astroboy	0:94897d537b31	155	device_address((char *)netif->hwaddr);
astroboy	0:94897d537b31	156
astroboy	0:94897d537b31	157	netif = netif_add(netif, &ipaddr, &netmask, &gw, NULL, device_init, ip_input);
astroboy	0:94897d537b31	158	netif->hostname = hostname;
astroboy	0:94897d537b31	159	netif_set_default(netif);
astroboy	0:94897d537b31	160	netif->hostname = hostname;
astroboy	0:94897d537b31	161	netif_set_up(netif);
astroboy	0:94897d537b31	162	dhcp_start(netif);
astroboy	0:94897d537b31	163
astroboy	0:94897d537b31	164	struct tcp_pcb *pcb = tcp_new();
astroboy	0:94897d537b31	165	if (tcp_bind(pcb, IP_ADDR_ANY, 80) == ERR_OK) {
astroboy	0:94897d537b31	166	pcb = tcp_listen(pcb);
astroboy	0:94897d537b31	167	tcp_accept(pcb, &accept_callback);
astroboy	0:94897d537b31	168	}
astroboy	0:94897d537b31	169
astroboy	0:94897d537b31	170	printf("entering while loop\n");
astroboy	0:94897d537b31	171	for (;;) {
astroboy	0:94897d537b31	172	CoTickDelay(10);
astroboy	0:94897d537b31	173	device_poll();
astroboy	0:94897d537b31	174	if ( ++x % 100 == 0) {
astroboy	0:94897d537b31	175	etharp_tmr();
astroboy	0:94897d537b31	176	tcp_fasttmr();
astroboy	0:94897d537b31	177	tcp_slowtmr();
astroboy	0:94897d537b31	178	dns_tmr();
astroboy	0:94897d537b31	179	dhcp_coarse_tmr();
astroboy	0:94897d537b31	180	dhcp_fine_tmr();
astroboy	0:94897d537b31	181	x=0;
astroboy	0:94897d537b31	182	}
astroboy	0:94897d537b31	183	}
astroboy	0:94897d537b31	184	}
astroboy	0:94897d537b31	185
astroboy	0:94897d537b31	186
astroboy	0:94897d537b31	187
astroboy	0:94897d537b31	188	int main() {
astroboy	0:94897d537b31	189	//SystemInit();
astroboy	0:94897d537b31	190	CoInitOS();
astroboy	0:94897d537b31	191	CoCreateTask(taskA,0,A_TASK_PRIO,&a_task_stk[STK_SIZE-1],STK_SIZE);
astroboy	0:94897d537b31	192	CoCreateTask(taskB,0,B_TASK_PRIO,&b_task_stk[STK_SIZE-1],STK_SIZE);
astroboy	0:94897d537b31	193	CoStartOS();
astroboy	0:94897d537b31	194	while (1);
astroboy	0:94897d537b31	195	}
astroboy	0:94897d537b31	196

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	10 Sep 2011
Imports:	49
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	2
Followers:	2

main.cpp@0:94897d537b31, 2011-09-10 (annotated)

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