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| author | marcoveeneman <marco-veeneman@hotmail.com> | 2015-02-16 21:49:29 +0100 |
|---|---|---|
| committer | marcoveeneman <marco-veeneman@hotmail.com> | 2015-02-16 21:49:29 +0100 |
| commit | 7b73ccd1d023a9db2b96e1563bbe995806d7356b (patch) | |
| tree | 6afcd496a6d4656cbe7c1c68d978c50df4fb009e /demos/TIVA/RT-TM4C1294-LAUNCHPAD-LWIP/web | |
| parent | 59499bd0cf2a1b1f604969207d9d488943bf798d (diff) | |
| download | ChibiOS-Contrib-7b73ccd1d023a9db2b96e1563bbe995806d7356b.tar.gz ChibiOS-Contrib-7b73ccd1d023a9db2b96e1563bbe995806d7356b.tar.bz2 ChibiOS-Contrib-7b73ccd1d023a9db2b96e1563bbe995806d7356b.zip | |
Added basic demo for TM4C1294 Connected Launchpad with LwIP.
Diffstat (limited to 'demos/TIVA/RT-TM4C1294-LAUNCHPAD-LWIP/web')
| -rw-r--r-- | demos/TIVA/RT-TM4C1294-LAUNCHPAD-LWIP/web/web.c | 121 | ||||
| -rw-r--r-- | demos/TIVA/RT-TM4C1294-LAUNCHPAD-LWIP/web/web.h | 51 |
2 files changed, 172 insertions, 0 deletions
diff --git a/demos/TIVA/RT-TM4C1294-LAUNCHPAD-LWIP/web/web.c b/demos/TIVA/RT-TM4C1294-LAUNCHPAD-LWIP/web/web.c new file mode 100644 index 0000000..dfc9d0d --- /dev/null +++ b/demos/TIVA/RT-TM4C1294-LAUNCHPAD-LWIP/web/web.c @@ -0,0 +1,121 @@ +/* + ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +/* + * This file is a modified version of the lwIP web server demo. The original + * author is unknown because the file didn't contain any license information. + */ + +/** + * @file web.c + * @brief HTTP server wrapper thread code. + * @addtogroup WEB_THREAD + * @{ + */ + +#include "ch.h" + +#include "lwip/opt.h" +#include "lwip/arch.h" +#include "lwip/api.h" + +#include "web.h" + +#if LWIP_NETCONN + +static const char http_html_hdr[] = "HTTP/1.1 200 OK\r\nContent-type: text/html\r\n\r\n"; +static const char http_index_html[] = "<html><head><title>Congrats!</title></head><body><h1>Welcome to our lwIP HTTP server!</h1><p>This is a small test page.</body></html>"; + +static void http_server_serve(struct netconn *conn) { + struct netbuf *inbuf; + char *buf; + u16_t buflen; + err_t err; + + /* Read the data from the port, blocking if nothing yet there. + We assume the request (the part we care about) is in one netbuf */ + err = netconn_recv(conn, &inbuf); + + if (err == ERR_OK) { + netbuf_data(inbuf, (void **)&buf, &buflen); + + /* Is this an HTTP GET command? (only check the first 5 chars, since + there are other formats for GET, and we're keeping it very simple )*/ + if (buflen>=5 && + buf[0]=='G' && + buf[1]=='E' && + buf[2]=='T' && + buf[3]==' ' && + buf[4]=='/' ) { + + /* Send the HTML header + * subtract 1 from the size, since we dont send the \0 in the string + * NETCONN_NOCOPY: our data is const static, so no need to copy it + */ + netconn_write(conn, http_html_hdr, sizeof(http_html_hdr)-1, NETCONN_NOCOPY); + + /* Send our HTML page */ + netconn_write(conn, http_index_html, sizeof(http_index_html)-1, NETCONN_NOCOPY); + } + } + /* Close the connection (server closes in HTTP) */ + netconn_close(conn); + + /* Delete the buffer (netconn_recv gives us ownership, + so we have to make sure to deallocate the buffer) */ + netbuf_delete(inbuf); +} + +/** + * Stack area for the http thread. + */ +THD_WORKING_AREA(wa_http_server, WEB_THREAD_STACK_SIZE); + +/** + * HTTP server thread. + */ +msg_t http_server(void *p) { + struct netconn *conn, *newconn; + err_t err; + + (void)p; + + /* Create a new TCP connection handle */ + conn = netconn_new(NETCONN_TCP); + LWIP_ERROR("http_server: invalid conn", (conn != NULL), return MSG_RESET;); + + /* Bind to port 80 (HTTP) with default IP address */ + netconn_bind(conn, NULL, WEB_THREAD_PORT); + + /* Put the connection into LISTEN state */ + netconn_listen(conn); + + /* Goes to the final priority after initialization.*/ + chThdSetPriority(WEB_THREAD_PRIORITY); + + while(1) { + err = netconn_accept(conn, &newconn); + if (err != ERR_OK) + continue; + http_server_serve(newconn); + netconn_delete(newconn); + } + return MSG_OK; +} + +#endif /* LWIP_NETCONN */ + +/** @} */ diff --git a/demos/TIVA/RT-TM4C1294-LAUNCHPAD-LWIP/web/web.h b/demos/TIVA/RT-TM4C1294-LAUNCHPAD-LWIP/web/web.h new file mode 100644 index 0000000..2764242 --- /dev/null +++ b/demos/TIVA/RT-TM4C1294-LAUNCHPAD-LWIP/web/web.h @@ -0,0 +1,51 @@ +/* + ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +/** + * @file web.h + * @brief HTTP server wrapper thread macros and structures. + * @addtogroup WEB_THREAD + * @{ + */ + +#ifndef _WEB_H_ +#define _WEB_H_ + +#ifndef WEB_THREAD_STACK_SIZE +#define WEB_THREAD_STACK_SIZE 1024 +#endif + +#ifndef WEB_THREAD_PORT +#define WEB_THREAD_PORT 80 +#endif + +#ifndef WEB_THREAD_PRIORITY +#define WEB_THREAD_PRIORITY (LOWPRIO + 2) +#endif + +extern THD_WORKING_AREA(wa_http_server, WEB_THREAD_STACK_SIZE); + +#ifdef __cplusplus +extern "C" { +#endif + msg_t http_server(void *p); +#ifdef __cplusplus +} +#endif + +#endif /* _WEB_H_ */ + +/** @} */ |