114 lines
3.8 KiB
C
114 lines
3.8 KiB
C
/* SPDX-FileCopyrightText: 2022-2025 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "esp_log.h"
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#include "driver/gpio.h"
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#include "button_gpio.h"
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#include "esp_sleep.h"
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static const char *TAG = "gpio button";
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#define GPIO_BTN_CHECK(a, str, ret_val) \
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if (!(a)) \
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{ \
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ESP_LOGE(TAG, "%s(%d): %s", __FUNCTION__, __LINE__, str); \
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return (ret_val); \
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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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GPIO_BTN_CHECK(NULL != config, "Pointer of config is invalid", ESP_ERR_INVALID_ARG);
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GPIO_BTN_CHECK(GPIO_IS_VALID_GPIO(config->gpio_num), "GPIO number error", ESP_ERR_INVALID_ARG);
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gpio_config_t gpio_conf;
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gpio_conf.intr_type = GPIO_INTR_DISABLE;
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gpio_conf.mode = GPIO_MODE_INPUT;
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gpio_conf.pin_bit_mask = (1ULL << config->gpio_num);
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if (config->disable_pull) {
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gpio_conf.pull_down_en = GPIO_PULLDOWN_DISABLE;
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gpio_conf.pull_up_en = GPIO_PULLUP_DISABLE;
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} else {
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if (config->active_level) {
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gpio_conf.pull_down_en = GPIO_PULLDOWN_ENABLE;
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gpio_conf.pull_up_en = GPIO_PULLUP_DISABLE;
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} else {
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gpio_conf.pull_down_en = GPIO_PULLDOWN_DISABLE;
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gpio_conf.pull_up_en = GPIO_PULLUP_ENABLE;
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}
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}
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gpio_config(&gpio_conf);
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#if CONFIG_GPIO_BUTTON_SUPPORT_POWER_SAVE
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if (config->enable_power_save) {
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#if CONFIG_PM_POWER_DOWN_PERIPHERAL_IN_LIGHT_SLEEP
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if (!esp_sleep_is_valid_wakeup_gpio(config->gpio_num)) {
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ESP_LOGE(TAG, "GPIO %ld is not a valid wakeup source under CONFIG_GPIO_BUTTON_SUPPORT_POWER_SAVE", config->gpio_num);
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return ESP_FAIL;
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}
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gpio_hold_en(config->gpio_num);
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#endif
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/* Enable wake up from GPIO */
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esp_err_t ret = gpio_wakeup_enable(config->gpio_num, config->active_level == 0 ? GPIO_INTR_LOW_LEVEL : GPIO_INTR_HIGH_LEVEL);
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GPIO_BTN_CHECK(ret == ESP_OK, "Enable gpio wakeup failed", ESP_FAIL);
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#if CONFIG_PM_POWER_DOWN_PERIPHERAL_IN_LIGHT_SLEEP
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#if SOC_PM_SUPPORT_EXT1_WAKEUP
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ret = esp_sleep_enable_ext1_wakeup_io((1ULL << config->gpio_num), config->active_level == 0 ? ESP_EXT1_WAKEUP_ANY_LOW : ESP_EXT1_WAKEUP_ANY_HIGH);
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#else
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/*!< Not support etc: esp32c2, esp32c3. Target must support ext1 wakeup */
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ret = ESP_FAIL;
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GPIO_BTN_CHECK(ret == ESP_OK, "Target must support ext1 wakeup", ESP_FAIL);
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#endif
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#else
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ret = esp_sleep_enable_gpio_wakeup();
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#endif
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GPIO_BTN_CHECK(ret == ESP_OK, "Configure gpio as wakeup source failed", ESP_FAIL);
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}
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#endif
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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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return gpio_reset_pin(gpio_num);;
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}
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uint8_t button_gpio_get_key_level(void *gpio_num)
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{
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return (uint8_t)gpio_get_level((uint32_t)gpio_num);
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}
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esp_err_t button_gpio_set_intr(int gpio_num, gpio_int_type_t intr_type, gpio_isr_t isr_handler, void *args)
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{
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static bool isr_service_installed = false;
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gpio_set_intr_type(gpio_num, intr_type);
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if (!isr_service_installed) {
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gpio_install_isr_service(ESP_INTR_FLAG_IRAM);
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isr_service_installed = true;
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}
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gpio_isr_handler_add(gpio_num, isr_handler, args);
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return ESP_OK;
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}
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esp_err_t button_gpio_intr_control(int gpio_num, bool enable)
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{
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if (enable) {
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gpio_intr_enable(gpio_num);
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} else {
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gpio_intr_disable(gpio_num);
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}
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return ESP_OK;
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}
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esp_err_t button_gpio_enable_gpio_wakeup(uint32_t gpio_num, uint8_t active_level, bool enable)
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{
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esp_err_t ret;
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if (enable) {
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ret = gpio_wakeup_enable(gpio_num, active_level == 0 ? GPIO_INTR_LOW_LEVEL : GPIO_INTR_HIGH_LEVEL);
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} else {
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ret = gpio_wakeup_disable(gpio_num);
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}
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return ret;
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}
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