Zephyr API Documentation
3.7.99
A Scalable Open Source RTOS
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gpio.h
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/*
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* Copyright (c) 2019 Piotr Mienkowski
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* Copyright (c) 2018 Linaro Limited
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef ZEPHYR_INCLUDE_DT_BINDINGS_GPIO_GPIO_H_
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#define ZEPHYR_INCLUDE_DT_BINDINGS_GPIO_GPIO_H_
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#define GPIO_DT_FLAGS_MASK 0x3F
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#define GPIO_ACTIVE_LOW (1 << 0)
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#define GPIO_ACTIVE_HIGH (0 << 0)
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/* Configures GPIO output in single-ended mode (open drain or open source). */
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#define GPIO_SINGLE_ENDED (1 << 1)
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/* Configures GPIO output in push-pull mode */
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#define GPIO_PUSH_PULL (0 << 1)
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/* Indicates single ended open drain mode (wired AND). */
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#define GPIO_LINE_OPEN_DRAIN (1 << 2)
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/* Indicates single ended open source mode (wired OR). */
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#define GPIO_LINE_OPEN_SOURCE (0 << 2)
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#define GPIO_OPEN_DRAIN (GPIO_SINGLE_ENDED | GPIO_LINE_OPEN_DRAIN)
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#define GPIO_OPEN_SOURCE (GPIO_SINGLE_ENDED | GPIO_LINE_OPEN_SOURCE)
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#define GPIO_PULL_UP (1 << 4)
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#define GPIO_PULL_DOWN (1 << 5)
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#define GPIO_INT_WAKEUP (1 << 6)
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/* Note: Bits 15 downto 8 are reserved for SoC specific flags. */
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#endif
/* ZEPHYR_INCLUDE_DT_BINDINGS_GPIO_GPIO_H_ */
zephyr
dt-bindings
gpio
gpio.h
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