-/**
- * Copyright (c) 2022 Raspberry Pi (Trading) Ltd.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
#include "pico/cyw43_arch.h"
#include "pico/stdlib.h"
+#include "pico/util/queue.h"
+
+#include "blink.h"
+#include "button.h"
+#include "config.h"
+#include "net.h"
+
+queue_t queue;
+
+uint32_t time_s() { return time_us_64() / 1000000ul; }
+
+static void button_pressed() {
+ /* This runs in interrupt context; don't linger. */
+ static uint64_t last_button_press_time = 0;
+ uint32_t now = time_s();
+ uint32_t time_since_last_press = now - last_button_press_time;
+ if (time_since_last_press >= config_minimum_seconds_between_button_presses) {
+ last_button_press_time = now;
+ /* We don't check for failure (full queue) here because there's not much to
+ * be done about it. */
+ queue_try_add(&queue, &now);
+ }
+}
int main() {
stdio_init_all();
- if (cyw43_arch_init()) {
- printf("Wi-Fi init failed");
- return -1;
- }
- while (true) {
- cyw43_arch_gpio_put(CYW43_WL_GPIO_LED_PIN, 1);
- sleep_ms(250);
- cyw43_arch_gpio_put(CYW43_WL_GPIO_LED_PIN, 0);
- sleep_ms(250);
+ if (cyw43_arch_init_with_country(CYW43_COUNTRY_USA))
+ signal_error_by_blinking();
+ cyw43_arch_enable_sta_mode();
+ signal(3, 100);
+ if (cyw43_arch_wifi_connect_timeout_ms(config_wifi_ssid, config_wifi_pass,
+ CYW43_AUTH_WPA2_AES_PSK, 90000))
+ signal_error_by_blinking();
+ signal(2, 300);
+
+ queue_init(&queue, sizeof(uint32_t), 99);
+
+ begin_listening_for_button_press(button_pressed);
+
+ u16_t seq = 0;
+ while (1) {
+ uint32_t t;
+ queue_remove_blocking(&queue, &t);
+ seq++;
+ for (int i = 0; i < config_resend_count; i++) {
+ uint32_t now = time_s();
+ uint32_t ago = now - t;
+ send_report(seq, ago);
+ signal(i == 0 ? 2 : 1, 100);
+ sleep_ms(config_resend_interval_ms);
+ }
}
}