diff options
Diffstat (limited to 'demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP/web')
-rw-r--r-- | demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP/web/web.c | 121 | ||||
-rw-r--r-- | demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP/web/web.h | 51 |
2 files changed, 172 insertions, 0 deletions
diff --git a/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP/web/web.c b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP/web/web.c new file mode 100644 index 000000000..736589b3c --- /dev/null +++ b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP/web/web.c @@ -0,0 +1,121 @@ +/*
+ ChibiOS - Copyright (C) 2006..2016 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.
+ */
+THD_FUNCTION(http_server, p) {
+ struct netconn *conn, *newconn;
+ err_t err;
+
+ (void)p;
+ chRegSetThreadName("http");
+
+ /* Create a new TCP connection handle */
+ conn = netconn_new(NETCONN_TCP);
+ LWIP_ERROR("http_server: invalid conn", (conn != NULL), chThdExit(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 (true) {
+ err = netconn_accept(conn, &newconn);
+ if (err != ERR_OK)
+ continue;
+ http_server_serve(newconn);
+ netconn_delete(newconn);
+ }
+}
+
+#endif /* LWIP_NETCONN */
+
+/** @} */
diff --git a/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP/web/web.h b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP/web/web.h new file mode 100644 index 000000000..e1d48379a --- /dev/null +++ b/demos/ATSAMA5D2/RT-SAMA5D2-XPLAINED-LWIP/web/web.h @@ -0,0 +1,51 @@ +/*
+ ChibiOS - Copyright (C) 2006..2016 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
+ THD_FUNCTION(http_server, p);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* WEB_H */
+
+/** @} */
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