Rename sam7 tcp server example.

[bertos.git] / boards / at91sam7x-ek / examples / at91sam7x-ek_tcp_server / main.c

diff --git a/boards/at91sam7x-ek/examples/at91sam7x-ek_tcp_server/main.c b/boards/at91sam7x-ek/examples/at91sam7x-ek_tcp_server/main.c
new file mode 100644 (file)
index 0000000..71e6788
--- /dev/null
+++ b/boards/at91sam7x-ek/examples/at91sam7x-ek_tcp_server/main.c
@@ -0,0 +1,160 @@
+/**
+ * \file
+ * <!--
+ * This file is part of BeRTOS.
+ *
+ * Bertos is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * As a special exception, you may use this file as part of a free software
+ * library without restriction.  Specifically, if other files instantiate
+ * templates or use macros or inline functions from this file, or you compile
+ * this file and link it with other files to produce an executable, this
+ * file does not by itself cause the resulting executable to be covered by
+ * the GNU General Public License.  This exception does not however
+ * invalidate any other reasons why the executable file might be covered by
+ * the GNU General Public License.
+ *
+ * Copyright 2010 Develer S.r.l. (http://www.develer.com/)
+ *
+ * -->
+ *
+ * \author Andrea Righi <arighi@develer.com>
+ *
+ * \brief lwIP TCP/IP echo server listening on port 80.
+ */
+
+#include "hw/hw_led.h"
+
+#include <cfg/debug.h>
+
+#include <cpu/irq.h>
+#include <cpu/power.h>
+
+#include <drv/timer.h>
+#include <drv/ser.h>
+
+#include <kern/proc.h>
+#include <kern/monitor.h>
+
+#include <netif/ethernetif.h>
+
+#include <lwip/ip.h>
+#include <lwip/ip_addr.h>
+#include <lwip/netif.h>
+#include <lwip/tcpip.h>
+#include <lwip/dhcp.h>
+
+static Serial out;
+
+/* Network interface global variables */
+static struct ip_addr ipaddr, netmask, gw;
+static struct netif netif;
+
+static void init(void)
+{
+       /* Enable all the interrupts */
+       IRQ_ENABLE;
+
+       /* Initialize debugging module (allow kprintf(), etc.) */
+       kdbg_init();
+       /* Initialize system timer */
+       timer_init();
+       /* Initialize UART0 */
+       ser_init(&out, SER_UART0);
+       /* Configure UART0 to work at 115.200 bps */
+       ser_setbaudrate(&out, 115200);
+       /* Initialize LED driver */
+       LED_INIT();
+
+       /*
+        * Kernel initialization: processes (allow to create and dispatch
+        * processes using proc_new()).
+        */
+       proc_init();
+
+       /* Initialize TCP/IP stack */
+       tcpip_init(NULL, NULL);
+
+       /* Bring up the network interface */
+       netif_add(&netif, &ipaddr, &netmask, &gw, NULL, ethernetif_init, tcpip_input);
+       netif_set_default(&netif);
+       netif_set_up(&netif);
+}
+
+static int tot_req;
+
+static NORETURN void monitor_process(void)
+{
+       int start = tot_req;
+
+       while (1)
+       {
+               monitor_report();
+               kprintf("tot_req=%d [%d reqs/s]\n", tot_req, tot_req - start);
+               start = tot_req;
+               timer_delay(1000);
+       }
+}
+
+int main(void)
+{
+       struct netconn *server;
+
+       /* Hardware initialization */
+       init();
+
+       proc_new(monitor_process, NULL, KERN_MINSTACKSIZE * 2, NULL);
+
+       dhcp_start(&netif);
+       /*
+        * Here we wait for an ip address, but it's not strictly
+        * necessary. The address is obtained in background and
+        * as long as we don't use network functions, we could go
+        * on with initialization
+        */
+       while (!netif.ip_addr.addr)
+               timer_delay(200);
+       kprintf(">>> dhcp ok: ip = ip = %s (kernel %s)\n",
+               ip_ntoa(&netif.ip_addr.addr),
+               CONFIG_KERN_PREEMPT ? "preempt" : "coop");
+
+       server = netconn_new(NETCONN_TCP);
+       netconn_bind(server, IP_ADDR_ANY, 80);
+       netconn_listen(server);
+
+       while (1)
+       {
+               struct netconn *client;
+               struct netbuf *rx_buf_conn;
+               char *rx_buf;
+               u16_t len;
+
+               client = netconn_accept(server);
+               if (!client)
+                       continue;
+
+               tot_req++;
+               rx_buf_conn = netconn_recv(client);
+               if (rx_buf_conn)
+               {
+                       netbuf_data(rx_buf_conn, (void **)&rx_buf, &len);
+                       if (rx_buf)
+                               netconn_write(client, rx_buf, len, NETCONN_COPY);
+                       netbuf_delete(rx_buf_conn);
+               }
+               while (netconn_delete(client) != ERR_OK)
+                       cpu_relax();
+       }
+}