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/*
* morningtown.c
*
* Silent alarm clock
*
* Copyright © 2023 Thomas White <taw@physics.org>
*
* This file is part of MorningTown
*
* MorningTown 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 3 of the License, or
* (at your option) any later version.
*
* MorningTown 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 MorningTown. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <pico/stdlib.h>
#include <hardware/rtc.h>
#include <hardware/watchdog.h>
#include <pico/cyw43_arch.h>
#include "ntp_client.h"
#define LED_GREEN 21
#define LED_RED 22
#define TEST_BUTTON 16
static void check_clock(int *pre_wake, int *wake_now)
{
datetime_t t = {0};
rtc_get_datetime(&t);
if ( (t.hour == 7) && (t.min >= 15) ) {
*pre_wake = 1;
*wake_now = 0;
} else if ( (t.hour >= 8) && (t.hour < 12) ) {
*pre_wake = 0;
*wake_now = 1;
} else {
*pre_wake = 0;
*wake_now = 0;
}
}
int main()
{
NTP_T *ntp_state;
int last_conn;
int pre_wake = 0;
int wake_now = 0;
gpio_init(LED_GREEN);
gpio_init(LED_RED);
gpio_init(TEST_BUTTON);
gpio_set_dir(LED_GREEN, GPIO_OUT);
gpio_set_dir(LED_RED, GPIO_OUT);
gpio_set_dir(TEST_BUTTON, GPIO_IN);
gpio_pull_up(TEST_BUTTON);
cyw43_arch_init();
cyw43_arch_enable_sta_mode();
stdio_init_all();
watchdog_enable(0x7fffff, 1);
cyw43_arch_gpio_put(CYW43_WL_GPIO_LED_PIN, 1);
gpio_put(LED_RED, 1);
gpio_put(LED_GREEN, 1);
sleep_ms(2000);
cyw43_arch_gpio_put(CYW43_WL_GPIO_LED_PIN, 0);
gpio_put(LED_RED, 0);
gpio_put(LED_GREEN, 0);
rtc_init();
ntp_state = ntp_init();
last_conn = 200;
while (1) {
watchdog_update();
int st = cyw43_wifi_link_status(&cyw43_state, CYW43_ITF_STA);
if ( (st != CYW43_LINK_JOIN) && (last_conn > 100) ) {
cyw43_arch_wifi_connect_async(WIFI_SSID,
WIFI_PASSWORD,
CYW43_AUTH_WPA2_AES_PSK);
debug_print("connecting to wifi...\n");
last_conn = 0;
}
if ( ntp_ok(ntp_state) ) {
check_clock(&pre_wake, &wake_now);
}
/* Determine the LED status */
if ( gpio_get(TEST_BUTTON) == 0 ) {
/* Button pressed */
gpio_put(LED_GREEN, ntp_ok(ntp_state));
gpio_put(LED_RED, ntp_err(ntp_state));
cyw43_arch_gpio_put(CYW43_WL_GPIO_LED_PIN,
(st == CYW43_LINK_JOIN));
} else {
if ( !ntp_ok(ntp_state) ) {
/* Booting up */
cyw43_arch_gpio_put(CYW43_WL_GPIO_LED_PIN,
(st == CYW43_LINK_JOIN));
gpio_put(LED_RED, 1);
gpio_put(LED_GREEN, 0);
} else {
/* Normal operation */
gpio_put(LED_GREEN, pre_wake || wake_now);
gpio_put(LED_RED, wake_now);
cyw43_arch_gpio_put(CYW43_WL_GPIO_LED_PIN, 0);
}
}
last_conn += 1;
cyw43_arch_poll();
sleep_ms(100);
}
}
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