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52 lines
1.8 KiB
C
52 lines
1.8 KiB
C
/*
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* SPDX-FileCopyrightText: 2023 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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#pragma once
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#include "soc/soc_caps.h"
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#include "esp_err.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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#if SOC_LP_GPIO_MATRIX_SUPPORTED
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/**
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* @brief Connect a RTC(LP) GPIO input with a peripheral signal, which tagged as input attribute
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*
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* @note There's no limitation on the number of signals that a RTC(LP) GPIO can connect with
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*
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* @param gpio_num GPIO number, especially, `LP_GPIO_MATRIX_CONST_ZERO_INPUT` means connect logic 0 to signal
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* `LP_GPIO_MATRIX_CONST_ONE_INPUT` means connect logic 1 to signal
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* @param signal_idx LP peripheral signal index (tagged as input attribute)
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* @param inv Whether the RTC(LP) GPIO input to be inverted or not
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* @return
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* - ESP_OK Success
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* - ESP_ERR_INVALID_ARG Parameter error
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*/
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esp_err_t lp_gpio_connect_in_signal(gpio_num_t gpio_num, uint32_t signal_idx, bool inv);
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/**
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* @brief Connect a peripheral signal which tagged as output attribute with a RTC(LP) GPIO
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*
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* @note There's no limitation on the number of RTC(LP) GPIOs that a signal can connect with
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*
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* @param gpio_num GPIO number
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* @param signal_idx LP peripheral signal index (tagged as input attribute), especially, `SIG_LP_GPIO_OUT_IDX` means disconnect RTC(LP) GPIO and other peripherals. Only the RTC GPIO driver can control the output level
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* @param out_inv Whether to signal to be inverted or not
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* @param out_en_inv Whether the output enable control is inverted or not
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* @return
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* - ESP_OK Success
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* - ESP_ERR_INVALID_ARG Parameter error
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*/
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esp_err_t lp_gpio_connect_out_signal(gpio_num_t gpio_num, uint32_t signal_idx, bool out_inv, bool out_en_inv);
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#endif // SOC_LP_GPIO_MATRIX_SUPPORTED
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#ifdef __cplusplus
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}
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#endif
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