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- /*
- * main.c
- *
- * Copyright (c) 2024 Thomas Buck (thomas@xythobuz.de)
- *
- * This program 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.
- *
- * 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.
- *
- * See <http://www.gnu.org/licenses/>.
- */
-
- #include <stdio.h>
- #include "pico/stdlib.h"
- #include "pico/bootrom.h"
- #include "hardware/watchdog.h"
-
- #include "adc.h"
- #include "buttons.h"
- #include "encoder.h"
- #include "lcd.h"
- #include "led.h"
- #include "pulse.h"
- #include "sequence.h"
- #include "ui.h"
- #include "main.h"
-
- #define WATCHDOG_PERIOD_MS 100
- #define LOGO_INIT_MS 1500
-
- static const uint gpio_hw_detect = 21;
-
- enum hw_versions hw_type = HW_UNKNOWN;
-
- static bool debug_buttons[NUM_BTNS] = {0};
-
- static void debug_buttons_callback(enum buttons btn, bool v) {
- debug_buttons[btn] = v;
- }
-
- static void reset_to_bootloader(void) {
- lcd_draw_bye();
-
- #ifdef PICO_DEFAULT_LED_PIN
- reset_usb_boot(1 << PICO_DEFAULT_LED_PIN, 0);
- #else // ! PICO_DEFAULT_LED_PIN
- reset_usb_boot(0, 0);
- #endif // PICO_DEFAULT_LED_PIN
- }
-
- void handle_serial_input(void) {
- int c = getchar_timeout_us(0);
- if (c == 0x18) {
- reset_to_bootloader();
- } else if (c != PICO_ERROR_TIMEOUT) {
- printf("%c", c);
- }
- }
-
- int main(void) {
- stdio_init_all();
-
- gpio_init(gpio_hw_detect);
- gpio_set_dir(gpio_hw_detect, GPIO_IN);
- gpio_pull_up(gpio_hw_detect);
- if (gpio_get(gpio_hw_detect)) {
- hw_type = HW_PROTOTYPE;
- } else {
- hw_type = HW_V2;
- }
-
- bat_init();
- buttons_init();
- encoder_init();
- lcd_init();
- led_init();
-
- // read out button state for debug options
- buttons_callback(debug_buttons_callback);
- for (uint i = 0; i < (DEBOUNCE_DELAY_MS + 5); i++) {
- buttons_run();
- handle_serial_input();
- sleep_ms(1);
- }
-
- if (debug_buttons[BTN_REC]) {
- lcd_debug_buttons();
- } else if (!debug_buttons[BTN_H]) {
- // show splash for a bit and animate LEDs
- for (uint i = 0; i < LED_COUNT; i++) {
- handle_serial_input();
- led_set(i, true);
- sleep_ms(LOGO_INIT_MS / LED_COUNT);
- }
- }
-
- // turn off LEDs at end of init
- for (uint i = 0; i < LED_COUNT; i++) {
- led_set(i, false);
- }
-
- sequence_init();
- ui_init();
-
- printf("init done\n");
- watchdog_enable(WATCHDOG_PERIOD_MS, 1);
-
- int32_t last_epos = 0;
-
- while (1) {
- watchdog_update();
- buttons_run();
- encoder_run();
- sequence_run();
- pulse_run();
- ui_run();
-
- int32_t epos = encoder_pos();
- if (epos != last_epos) {
- ui_encoder(epos - last_epos);
- last_epos = epos;
- }
-
- handle_serial_input();
- }
-
- return 0;
- }
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