60 lines
1.7 KiB
C++
60 lines
1.7 KiB
C++
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#include "board_controls.hpp"
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#include <driver/gpio.h>
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#include <esp_log.h>
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#include <esp_timer.h>
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namespace microbu {
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namespace {
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const char* TAG = "board";
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constexpr std::int64_t blink_us = CONFIG_MICROBU_TX_LED_BLINK_MS * 1000LL;
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}
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BoardControls::BoardControls() {
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gpio_config_t led = {};
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led.pin_bit_mask = 1ULL << CONFIG_MICROBU_TX_LED_GPIO;
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led.mode = GPIO_MODE_OUTPUT;
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led.pull_up_en = GPIO_PULLUP_DISABLE;
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led.pull_down_en = GPIO_PULLDOWN_DISABLE;
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led.intr_type = GPIO_INTR_DISABLE;
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ESP_ERROR_CHECK(gpio_config(&led));
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#if CONFIG_MICROBU_LED_INVERTED_RX
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mode_ = LedMode::inverted_rx;
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#else
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mode_ = LedMode::normal_tx;
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#endif
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apply_led_state();
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ESP_LOGI(TAG, "LED GPIO %d (mode: %s)", CONFIG_MICROBU_TX_LED_GPIO,
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mode_ == LedMode::inverted_rx ? "inverted_rx (normally ON)" : "normal_tx (normally OFF)");
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}
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void BoardControls::apply_led_state() {
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// The XIAO ESP32-C5 user LED is wired active-low (0 = ON, 1 = OFF).
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// In normal_tx mode: default OFF (1), pulsing ON (0).
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// In inverted_rx mode: default ON (0), pulsing OFF (1).
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bool led_illuminated = false;
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if (mode_ == LedMode::normal_tx) {
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led_illuminated = pulsing_;
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} else {
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led_illuminated = !pulsing_;
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}
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gpio_set_level(static_cast<gpio_num_t>(CONFIG_MICROBU_TX_LED_GPIO), led_illuminated ? 0 : 1);
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}
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void BoardControls::blink() {
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pulse_until_us_ = esp_timer_get_time() + blink_us;
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if (!pulsing_) {
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pulsing_ = true;
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apply_led_state();
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}
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}
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void BoardControls::tick() {
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if (pulsing_ && esp_timer_get_time() >= pulse_until_us_) {
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pulsing_ = false;
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apply_led_state();
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}
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}
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} // namespace microbu
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