96 lines
2.4 KiB
C
96 lines
2.4 KiB
C
/*
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* Copyright (c) 2021 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @file
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* nRF SoC specific helpers for pinctrl driver
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*/
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#ifndef ZEPHYR_SOC_ARM_NORDIC_NRF_COMMON_PINCTRL_SOC_H_
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#define ZEPHYR_SOC_ARM_NORDIC_NRF_COMMON_PINCTRL_SOC_H_
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#include <devicetree.h>
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#include <dt-bindings/pinctrl/nrf-pinctrl.h>
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#include <zephyr/types.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** @cond INTERNAL_HIDDEN */
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/** Type for nRF pin. */
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typedef uint32_t pinctrl_soc_pin_t;
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/**
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* @brief Utility macro to initialize each pin.
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*
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* @param node_id Node identifier.
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* @param prop Property name.
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* @param idx Property entry index.
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*/
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#define Z_PINCTRL_STATE_PIN_INIT(node_id, prop, idx) \
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(DT_PROP_BY_IDX(node_id, prop, idx) | \
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((NRF_PULL_DOWN * DT_PROP(node_id, bias_pull_down)) << NRF_PULL_POS) |\
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((NRF_PULL_UP * DT_PROP(node_id, bias_pull_up)) << NRF_PULL_POS) | \
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(DT_PROP(node_id, drive_mode) << NRF_DRIVE_POS) | \
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((NRF_LP_ENABLE * DT_PROP(node_id, low_power_enable)) << NRF_LP_POS) \
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),
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/**
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* @brief Utility macro to initialize state pins contained in a given property.
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*
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* @param node_id Node identifier.
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* @param prop Property name describing state pins.
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*/
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#define Z_PINCTRL_STATE_PINS_INIT(node_id, prop) \
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{DT_FOREACH_CHILD_VARGS(DT_PHANDLE(node_id, prop), \
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DT_FOREACH_PROP_ELEM, psels, \
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Z_PINCTRL_STATE_PIN_INIT)}
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/**
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* @brief Utility macro to obtain pin function.
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*
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* @param pincfg Pin configuration bit field.
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*/
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#define NRF_GET_FUN(pincfg) (((pincfg) >> NRF_FUN_POS) & NRF_FUN_MSK)
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/**
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* @brief Utility macro to obtain pin low power flag.
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*
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* @param pincfg Pin configuration bit field.
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*/
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#define NRF_GET_LP(pincfg) (((pincfg) >> NRF_LP_POS) & NRF_LP_MSK)
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/**
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* @brief Utility macro to obtain pin drive mode.
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*
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* @param pincfg Pin configuration bit field.
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*/
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#define NRF_GET_DRIVE(pincfg) (((pincfg) >> NRF_DRIVE_POS) & NRF_DRIVE_MSK)
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/**
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* @brief Utility macro to obtain pin pull configuration.
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*
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* @param pincfg Pin configuration bit field.
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*/
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#define NRF_GET_PULL(pincfg) (((pincfg) >> NRF_PULL_POS) & NRF_PULL_MSK)
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/**
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* @brief Utility macro to obtain port and pin combination.
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*
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* @param pincfg Pin configuration bit field.
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*/
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#define NRF_GET_PIN(pincfg) (((pincfg) >> NRF_PIN_POS) & NRF_PIN_MSK)
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/** @endcond */
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#ifdef __cplusplus
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}
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#endif
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#endif /* ZEPHYR_SOC_ARM_NORDIC_NRF_COMMON_PINCTRL_SOC_H_ */
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