65 lines
No EOL
1.5 KiB
C
65 lines
No EOL
1.5 KiB
C
// Copyright 2020 Espressif Systems (Shanghai) Co. Ltd.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef _IOT_BUTTON_GPIO_H_
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#define _IOT_BUTTON_GPIO_H_
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#include "driver/gpio.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief gpio button configuration
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*
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*/
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typedef struct {
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int32_t gpio_num;
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uint8_t active_level;
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} button_gpio_config_t;
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/**
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* @brief Initialize gpio button
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*
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* @param config pointer of configuration struct
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*
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* @return
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* - ESP_OK on success
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* - ESP_ERR_INVALID_ARG Arguments is NULL.
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*/
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esp_err_t button_gpio_init(const button_gpio_config_t *config);
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/**
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* @brief Deinitialize gpio button
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*
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* @param gpio_num gpio number of button
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*
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* @return Always return ESP_OK
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*/
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esp_err_t button_gpio_deinit(int gpio_num);
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/**
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* @brief Get current level on button gpio
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*
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* @param gpio_num gpio number of button, it will be treated as a uint32_t variable.
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*
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* @return Level on gpio
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*/
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uint8_t button_gpio_get_key_level(void *gpio_num);
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#ifdef __cplusplus
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}
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#endif
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#endif |