esp-pwm/main/un.c

#include <stdint.h>

#include "esp_log.h"
#include "driver/usb_serial_jtag.h"
#include "freertos/FreeRTOS.h" // IWYU pragma: keep
#include "freertos/task.h"

#include "un.h"
#include "buzzer.h"
#include "arraylen.h"

extern const uint32_t init_buzzer_freq;

static const char* TAG = "UN_C";

const char* NoteFreqToStr(NoteFreq note) {
    switch (note) {
    case C:
        return "C";
    case D:
        return "D";
    case E:
        return "E";
    case F:
        return "F";
    case G:
        return "G";
    case P:
        return "P";
    default:
        return "INVALID NOTEFREQ";
    }
}


void play_note(Note* note) {
    ESP_LOGI(TAG, "Playing note: %s %d", NoteFreqToStr(note->note),
             note->length);
    if (note->note != P) {
        set_frequency(note->note);
        buzzer_resume();
    }
    vTaskDelay(pdMS_TO_TICKS(note->length));
    buzzer_pause();
}

void un_task(void* param) {
    usb_serial_jtag_driver_config_t jtag_config = {.rx_buffer_size = 1024,
                                                   .tx_buffer_size = 1024};
    ESP_ERROR_CHECK(usb_serial_jtag_driver_install(&jtag_config));

    buzzer_init(init_buzzer_freq);

    const uint32_t quarter = 250;
    const uint32_t half = 500;
    const uint32_t whole = 1000;

    // clang-format off
    Note sequence[] = {
        {.note = C, .length = quarter},
        {.note = C, .length = quarter},
        {.note = C, .length = quarter},
        {.note = E, .length = quarter},

        {.note = D, .length = quarter},
        {.note = D, .length = quarter},
        {.note = D, .length = quarter},
        {.note = F, .length = quarter},

        {.note = E, .length = quarter},
        {.note = E, .length = quarter},
        {.note = D, .length = quarter},
        {.note = D, .length = quarter},

        {.note = C, .length = half},
        {.note = P, .length = half},

        {.note = E, .length = quarter},
        {.note = E, .length = quarter},
        {.note = E, .length = quarter},
        {.note = E, .length = quarter},

        {.note = G, .length = half},
        {.note = F, .length = half},

        {.note = D, .length = quarter},
        {.note = D, .length = quarter},
        {.note = D, .length = quarter},
        {.note = D, .length = quarter},

        {.note = F, .length = half},
        {.note = E, .length = half},

        {.note = C, .length = quarter},
        {.note = C, .length = quarter},
        {.note = C, .length = quarter},
        {.note = E, .length = quarter},

        {.note = D, .length = quarter},
        {.note = D, .length = quarter},
        {.note = D, .length = quarter},
        {.note = F, .length = quarter},

        {.note = E, .length = quarter},
        {.note = E, .length = quarter},
        {.note = D, .length = quarter},
        {.note = D, .length = quarter},

        {.note = C, .length = whole},
    };
    // clang-format on

    char* buf[4] = {0};
    buzzer_pause();
    while (true) {
        ESP_LOGI(TAG, "Press any button to play");
        usb_serial_jtag_read_bytes(buf, ARRAY_LEN(buf) - 1, portMAX_DELAY);
        for (size_t i = 0; i < ARRAY_LEN(sequence); i++) {
            play_note(&sequence[i]);
        }
    }
}