| /* |
| * |
| * Copyright (c) 2022 Project CHIP Authors |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "Button.h" |
| #include "esp_attr.h" |
| |
| #define GPIO_INPUT_IO_0 9 |
| #define GPIO_INPUT_PIN_SEL (1ULL << GPIO_INPUT_IO_0) |
| #define ESP_INTR_FLAG_DEFAULT 0 |
| |
| static const char * TAG = "Button"; |
| |
| static Button::ButtonPressCallback button_press_handler = nullptr; |
| |
| static void IRAM_ATTR gpio_isr_handler(void * arg) |
| { |
| if (button_press_handler != nullptr) |
| { |
| button_press_handler(); |
| } |
| } |
| |
| void Button::Init() |
| { |
| /* Initialize button interrupt*/ |
| // zero-initialize the config structure. |
| gpio_config_t io_conf = {}; |
| // interrupt of rising edge |
| io_conf.intr_type = GPIO_INTR_NEGEDGE; |
| // bit mask of the pins, use GPIO4/5 here |
| io_conf.pin_bit_mask = GPIO_INPUT_PIN_SEL; |
| // set as input mode |
| io_conf.mode = GPIO_MODE_INPUT; |
| // enable pull-up mode |
| io_conf.pull_up_en = GPIO_PULLUP_ENABLE; |
| gpio_config(&io_conf); |
| |
| // install gpio isr service |
| gpio_install_isr_service(ESP_INTR_FLAG_DEFAULT); |
| // hook isr handler for specific gpio pin |
| gpio_isr_handler_add(static_cast<gpio_num_t>(GPIO_INPUT_IO_0), gpio_isr_handler, (void *) GPIO_INPUT_IO_0); |
| |
| ESP_LOGI(TAG, "Button initialized.."); |
| } |
| |
| void Button::SetButtonPressCallback(ButtonPressCallback button_callback) |
| { |
| if (button_callback != nullptr) |
| { |
| button_press_handler = button_callback; |
| } |
| } |