openmv/lib/alif/Boards/DevKit-e7/Templates/lwip/httpd/main.c
iabdalkader daf2bb30da misc: Restructure repo.
Signed-off-by: iabdalkader <i.abdalkader@gmail.com>
2025-04-13 08:28:34 +02:00

232 lines
5.8 KiB
C

/*
* LWIP http webserver demo application
*
* Derived from CMSIS LWIP example projects.
*
* Author : Silesh C V <silesh@alifsemi.com>
*
* Copyright (C) 2022 ALIF SEMICONDUCTOR
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - Neither the name of ALIF SEMICONDUCTOR nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include "RTE_Components.h"
#include CMSIS_device_header
#include "cmsis_os2.h"
#include <stdio.h>
#include <stdint.h>
#include "ethernetif.h"
#include "lwip/init.h"
#include "lwip/netif.h"
#include "lwip/timeouts.h"
#include "lwip/apps/httpd.h"
#include "netif/etharp.h"
#include "lwip/dhcp.h"
#include "pinconf.h"
#if defined(RTE_Compiler_IO_STDOUT)
#include "retarget_stdout.h"
#endif /* RTE_Compiler_IO_STDOUT */
static void net_init (void);
static void net_periodic (uint32_t tick);
static void net_timer (uint32_t *tick);
static struct netif netif;
#define HTTP_DEMO_DEBUG
static int pin_mux_init(void)
{
int32_t ret;
ret = pinconf_set(PORT_11, PIN_0, PINMUX_ALTERNATE_FUNCTION_6, PADCTRL_READ_ENABLE);
if (ret)
return -1;
ret = pinconf_set(PORT_11, PIN_1, PINMUX_ALTERNATE_FUNCTION_5, PADCTRL_READ_ENABLE);
if (ret)
return -1;
ret = pinconf_set(PORT_11, PIN_2, PINMUX_ALTERNATE_FUNCTION_6, 0);
if (ret)
return -1;
ret = pinconf_set(PORT_11, PIN_3, PINMUX_ALTERNATE_FUNCTION_6, PADCTRL_READ_ENABLE);
if (ret)
return -1;
ret = pinconf_set(PORT_11, PIN_4, PINMUX_ALTERNATE_FUNCTION_6, PADCTRL_READ_ENABLE);
if (ret)
return -1;
ret = pinconf_set(PORT_11, PIN_5, PINMUX_ALTERNATE_FUNCTION_6, PADCTRL_READ_ENABLE);
if (ret)
return -1;
ret = pinconf_set(PORT_11, PIN_6, PINMUX_ALTERNATE_FUNCTION_6, 0);
if (ret)
return -1;
ret = pinconf_set(PORT_11, PIN_7, PINMUX_ALTERNATE_FUNCTION_6, PADCTRL_READ_ENABLE);
if (ret)
return -1;
ret = pinconf_set(PORT_6, PIN_0, PINMUX_ALTERNATE_FUNCTION_6, 0);
if (ret)
return -1;
ret = pinconf_set(PORT_10, PIN_5, PINMUX_ALTERNATE_FUNCTION_6, 0);
if (ret)
return -1;
ret = pinconf_set(PORT_10, PIN_6, PINMUX_ALTERNATE_FUNCTION_6, 0);
if (ret)
return -1;
return 0;
}
/* Initialize lwIP */
static void net_init (void)
{
ip4_addr_t ipaddr;
ip4_addr_t netmask;
ip4_addr_t gw;
lwip_init ();
#if LWIP_DHCP
ipaddr.addr = IPADDR_ANY;
netmask.addr = IPADDR_ANY;
gw.addr = IPADDR_ANY;
#else
IP4_ADDR (&ipaddr, 192,168,1,11);
IP4_ADDR (&netmask, 255,255,255,0);
IP4_ADDR (&gw, 192,168,1,1);
#endif
/* Add the network interface to the netif_list. */
netif_add(&netif, &ipaddr, &netmask, &gw, NULL, &ethernetif_init, &ethernet_input);
/* Register the default network interface. */
netif_set_default(&netif);
netif_set_up(&netif);
#if LWIP_DHCP
dhcp_start (&netif);
#endif
}
/* Link check */
static void net_periodic (uint32_t tick)
{
static uint32_t old_tick;
static ip4_addr_t ip = {0};
if (tick == old_tick) {
return;
}
old_tick = tick;
ethernetif_check_link (&netif);
#ifdef HTTP_DEMO_DEBUG
if (netif_is_link_up(&netif)) {
/* Print IP address if debug is enabled */
if (ip.addr != netif.ip_addr.addr) {
ip.addr = netif.ip_addr.addr;
printf ("Link up. IP: %s.\n", ipaddr_ntoa(&ip));
}
}
#endif
}
/* Tick timer callback */
static void net_timer (uint32_t *tick) {
++*tick;
}
/*----------------------------------------------------------------------------
* Application main thread
*---------------------------------------------------------------------------*/
void app_main (void *argument)
{
static uint32_t tick;
int32_t ret;
osTimerId_t id;
#if defined(RTE_Compiler_IO_STDOUT_User)
ret = stdout_init();
if (ret != 0)
{
while (1)
{
}
}
#endif
ret = pin_mux_init ();
if (ret < 0) {
#ifdef HTTP_DEMO_DEBUG
printf("pin mux initialization failed\n");
#endif
goto error;
}
/* Create tick timer, tick interval = 500ms */
id = osTimerNew ((osTimerFunc_t)&net_timer, osTimerPeriodic, &tick, NULL);
osTimerStart (id, 500);
net_init ();
httpd_init ();
while (1) {
/* check for packet reception */
ethernetif_poll (&netif);
/* handle system timers for lwIP */
sys_check_timeouts ();
net_periodic (tick);
}
error:
while(1);
}
int main (void)
{
// System Initialization
SystemCoreClockUpdate();
osKernelInitialize(); // Initialize CMSIS-RTOS
osThreadNew(app_main, NULL, NULL); // Create application main thread
osKernelStart(); // Start thread execution
for (;;) {}
}