picow_freertos_ping.c

/**
 * Copyright (c) 2022 Raspberry Pi (Trading) Ltd.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

#include "pico/cyw43_arch.h"
#include "pico/stdlib.h"

#include "lwip/ip4_addr.h"

#include "FreeRTOS.h"
#include "task.h"
#include "ping.h"

#ifndef PING_ADDR
#define PING_ADDR "142.251.35.196"
#endif
#ifndef RUN_FREERTOS_ON_CORE
#define RUN_FREERTOS_ON_CORE 0
#endif

#define TEST_TASK_PRIORITY				( tskIDLE_PRIORITY + 1UL )

void main_task(__unused void *params) {
    if (cyw43_arch_init()) {
        printf("failed to initialise\n");
        return;
    }
    cyw43_arch_enable_sta_mode();
    printf("Connecting to Wi-Fi...\n");
    if (cyw43_arch_wifi_connect_timeout_ms(WIFI_SSID, WIFI_PASSWORD, CYW43_AUTH_WPA2_AES_PSK, 30000)) {
        printf("failed to connect.\n");
        exit(1);
    } else {
        printf("Connected.\n");
    }

    ip_addr_t ping_addr;
    ipaddr_aton(PING_ADDR, &ping_addr);
    ping_init(&ping_addr);

    while(true) {
        // not much to do as LED is in another task, and we're using RAW (callback) lwIP API
        vTaskDelay(100);
    }

    cyw43_arch_deinit();
}

void vLaunch( void) {
    TaskHandle_t task;
    xTaskCreate(main_task, "TestMainThread", configMINIMAL_STACK_SIZE, NULL, TEST_TASK_PRIORITY, &task);

#if NO_SYS && configUSE_CORE_AFFINITY && configNUMBER_OF_CORES > 1
    // we must bind the main task to one core (well at least while the init is called)
    // (note we only do this in NO_SYS mode, because cyw43_arch_freertos
    // takes care of it otherwise)
    vTaskCoreAffinitySet(task, 1);
#endif

    /* Start the tasks and timer running. */
    vTaskStartScheduler();
}

int main( void )
{
    stdio_init_all();

    /* Configure the hardware ready to run the demo. */
    const char *rtos_name;
#if ( configNUMBER_OF_CORES > 1 )
    rtos_name = "FreeRTOS SMP";
#else
    rtos_name = "FreeRTOS";
#endif

#if ( configNUMBER_OF_CORES == 2 )
    printf("Starting %s on both cores:\n", rtos_name);
    vLaunch();
#elif ( RUN_FREERTOS_ON_CORE == 1 )
    printf("Starting %s on core 1:\n", rtos_name);
    multicore_launch_core1(vLaunch);
    while (true);
#else
    printf("Starting %s on core 0:\n", rtos_name);
    vLaunch();
#endif
    return 0;
}