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- /* SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
- *
- * SPDX-License-Identifier: Apache-2.0
- */
- #include "esp_log.h"
- #include "driver/gpio.h"
- #include "button_gpio.h"
- static const char *TAG = "gpio button";
- #define GPIO_BTN_CHECK(a, str, ret_val) \
- if (!(a)) \
- { \
- ESP_LOGE(TAG, "%s(%d): %s", __FUNCTION__, __LINE__, str); \
- return (ret_val); \
- }
- esp_err_t button_gpio_init(const button_gpio_config_t *config)
- {
- GPIO_BTN_CHECK(NULL != config, "Pointer of config is invalid", ESP_ERR_INVALID_ARG);
- GPIO_BTN_CHECK(GPIO_IS_VALID_GPIO(config->gpio_num), "GPIO number error", ESP_ERR_INVALID_ARG);
- gpio_config_t gpio_conf;
- gpio_conf.intr_type = GPIO_INTR_DISABLE;
- gpio_conf.mode = GPIO_MODE_INPUT;
- gpio_conf.pin_bit_mask = (1ULL << config->gpio_num);
- if (config->active_level) {
- gpio_conf.pull_down_en = GPIO_PULLDOWN_ENABLE;
- gpio_conf.pull_up_en = GPIO_PULLUP_DISABLE;
- } else {
- gpio_conf.pull_down_en = GPIO_PULLDOWN_DISABLE;
- gpio_conf.pull_up_en = GPIO_PULLUP_ENABLE;
- }
- gpio_config(&gpio_conf);
- return ESP_OK;
- }
- esp_err_t button_gpio_deinit(int gpio_num)
- {
- return gpio_reset_pin(gpio_num);;
- }
- uint8_t button_gpio_get_key_level(void *gpio_num)
- {
- return (uint8_t)gpio_get_level((uint32_t)gpio_num);
- }
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