119 lines
3.6 KiB
C
119 lines
3.6 KiB
C
/*
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* SPDX-FileCopyrightText: 2024 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 "esp_sleep.h"
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#include "esp_check.h"
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#include "driver/gpio.h"
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#include "knob_gpio.h"
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static const char *TAG = "knob gpio";
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esp_err_t knob_gpio_init(uint32_t gpio_num)
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{
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gpio_config_t gpio_cfg = {
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.pin_bit_mask = (1ULL << gpio_num),
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.mode = GPIO_MODE_INPUT,
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.intr_type = GPIO_INTR_DISABLE,
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.pull_up_en = 1,
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};
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esp_err_t ret = gpio_config(&gpio_cfg);
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return ret;
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}
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esp_err_t knob_gpio_deinit(uint32_t 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 knob_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 knob_gpio_init_intr(uint32_t 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 knob_gpio_set_intr(uint32_t gpio_num, gpio_int_type_t intr_type)
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{
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return gpio_set_intr_type(gpio_num, intr_type);
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}
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esp_err_t knob_gpio_intr_control(uint32_t 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 knob_gpio_wake_up_control(uint32_t gpio_num, uint8_t wake_up_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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#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 << gpio_num), wake_up_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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ESP_RETURN_ON_FALSE(ret == ESP_OK, ESP_FAIL, TAG, "Target must support ext1 wakeup");
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#endif
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#endif
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/* Enable wake up from GPIO */
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ret = gpio_wakeup_enable(gpio_num, wake_up_level == 0 ? GPIO_INTR_LOW_LEVEL : GPIO_INTR_HIGH_LEVEL);
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} else {
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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_disable_ext1_wakeup_io(1ULL << gpio_num);
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#endif
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#endif
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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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esp_err_t knob_gpio_wake_up_init(uint32_t gpio_num, uint8_t wake_up_level)
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{
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#if CONFIG_PM_POWER_DOWN_PERIPHERAL_IN_LIGHT_SLEEP
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if (!esp_sleep_is_valid_wakeup_gpio(gpio_num)) {
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ESP_LOGE(TAG, "GPIO %ld is not a valid wakeup source under CONFIG_PM_POWER_DOWN_PERIPHERAL_IN_LIGHT_SLEEP",
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gpio_num);
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return ESP_FAIL;
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}
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gpio_hold_en(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(gpio_num, wake_up_level == 0 ? GPIO_INTR_LOW_LEVEL : GPIO_INTR_HIGH_LEVEL);
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ESP_RETURN_ON_FALSE(ret == ESP_OK, ESP_FAIL, TAG, "Enable gpio wakeup failed");
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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 << gpio_num), wake_up_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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ESP_RETURN_ON_FALSE(ret == ESP_OK, ESP_FAIL, TAG, "Target must support ext1 wakeup");
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#endif
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#else
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ret = esp_sleep_enable_gpio_wakeup();
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ESP_RETURN_ON_FALSE(ret == ESP_OK, ESP_FAIL, TAG, "esp sleep enable gpio wakeup failed");
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#endif
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return ESP_OK;
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}
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