121 lines
3.9 KiB
C
121 lines
3.9 KiB
C
/*
|
|
* Copyright (c) 2020 Linaro Ltd.
|
|
* Copyright (c) 2021 Nordic Semiconductor ASA
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* STM32 SoC specific helpers for pinctrl driver
|
|
*/
|
|
|
|
#ifndef ZEPHYR_SOC_ARM_ST_STM32_COMMON_PINCTRL_SOC_H_
|
|
#define ZEPHYR_SOC_ARM_ST_STM32_COMMON_PINCTRL_SOC_H_
|
|
|
|
#include <zephyr/devicetree.h>
|
|
#include <zephyr/types.h>
|
|
|
|
#ifdef CONFIG_SOC_SERIES_STM32F1X
|
|
#include <zephyr/dt-bindings/pinctrl/stm32f1-pinctrl.h>
|
|
#else
|
|
#include <zephyr/dt-bindings/pinctrl/stm32-pinctrl.h>
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/** @cond INTERNAL_HIDDEN */
|
|
|
|
/** Type for STM32 pin. */
|
|
typedef struct pinctrl_soc_pin {
|
|
/** Pinmux settings (port, pin and function). */
|
|
uint32_t pinmux;
|
|
/** Pin configuration (bias, drive and slew rate). */
|
|
uint32_t pincfg;
|
|
} pinctrl_soc_pin_t;
|
|
|
|
/**
|
|
* @brief Utility macro to initialize pinmux field in #pinctrl_pin_t.
|
|
*
|
|
* @param node_id Node identifier.
|
|
*/
|
|
#define Z_PINCTRL_STM32_PINMUX_INIT(node_id) DT_PROP(node_id, pinmux)
|
|
|
|
/**
|
|
* @brief Definitions used to initialize fields in #pinctrl_pin_t
|
|
*/
|
|
#define STM32_NO_PULL 0x0
|
|
#define STM32_PULL_UP 0x1
|
|
#define STM32_PULL_DOWN 0x2
|
|
#define STM32_PUSH_PULL 0x0
|
|
#define STM32_OPEN_DRAIN 0x1
|
|
#define STM32_OUTPUT_LOW 0x0
|
|
#define STM32_OUTPUT_HIGH 0x1
|
|
#define STM32_GPIO_OUTPUT 0x1
|
|
|
|
#ifdef CONFIG_SOC_SERIES_STM32F1X
|
|
/**
|
|
* @brief Utility macro to initialize pincfg field in #pinctrl_pin_t (F1).
|
|
*
|
|
* @param node_id Node identifier.
|
|
*/
|
|
#define Z_PINCTRL_STM32_PINCFG_INIT(node_id) \
|
|
(((STM32_NO_PULL * DT_PROP(node_id, bias_disable)) << STM32_PUPD_SHIFT) | \
|
|
((STM32_PULL_UP * DT_PROP(node_id, bias_pull_up)) << STM32_PUPD_SHIFT) | \
|
|
((STM32_PULL_DOWN * DT_PROP(node_id, bias_pull_down)) << STM32_PUPD_SHIFT) | \
|
|
((STM32_PUSH_PULL * DT_PROP(node_id, drive_push_pull)) << STM32_CNF_OUT_0_SHIFT) | \
|
|
((STM32_OPEN_DRAIN * DT_PROP(node_id, drive_open_drain)) << STM32_CNF_OUT_0_SHIFT) | \
|
|
((STM32_OUTPUT_LOW * DT_PROP(node_id, output_low)) << STM32_ODR_SHIFT) | \
|
|
((STM32_OUTPUT_HIGH * DT_PROP(node_id, output_high)) << STM32_ODR_SHIFT) | \
|
|
(DT_ENUM_IDX(node_id, slew_rate) << STM32_MODE_OSPEED_SHIFT))
|
|
#else
|
|
/**
|
|
* @brief Utility macro to initialize pincfg field in #pinctrl_pin_t (non-F1).
|
|
*
|
|
* @param node_id Node identifier.
|
|
*/
|
|
#define Z_PINCTRL_STM32_PINCFG_INIT(node_id) \
|
|
(((STM32_NO_PULL * DT_PROP(node_id, bias_disable)) << STM32_PUPDR_SHIFT) | \
|
|
((STM32_PULL_UP * DT_PROP(node_id, bias_pull_up)) << STM32_PUPDR_SHIFT) | \
|
|
((STM32_PULL_DOWN * DT_PROP(node_id, bias_pull_down)) << STM32_PUPDR_SHIFT) | \
|
|
((STM32_PUSH_PULL * DT_PROP(node_id, drive_push_pull)) << STM32_OTYPER_SHIFT) | \
|
|
((STM32_OPEN_DRAIN * DT_PROP(node_id, drive_open_drain)) << STM32_OTYPER_SHIFT) | \
|
|
((STM32_OUTPUT_LOW * DT_PROP(node_id, output_low)) << STM32_ODR_SHIFT) | \
|
|
((STM32_OUTPUT_HIGH * DT_PROP(node_id, output_high)) << STM32_ODR_SHIFT) | \
|
|
((STM32_GPIO_OUTPUT * DT_PROP(node_id, output_low)) << STM32_MODER_SHIFT) | \
|
|
((STM32_GPIO_OUTPUT * DT_PROP(node_id, output_high)) << STM32_MODER_SHIFT) | \
|
|
(DT_ENUM_IDX(node_id, slew_rate) << STM32_OSPEEDR_SHIFT))
|
|
#endif /* CONFIG_SOC_SERIES_STM32F1X */
|
|
|
|
/**
|
|
* @brief Utility macro to initialize each pin.
|
|
*
|
|
* @param node_id Node identifier.
|
|
* @param state_prop State property name.
|
|
* @param idx State property entry index.
|
|
*/
|
|
#define Z_PINCTRL_STATE_PIN_INIT(node_id, state_prop, idx) \
|
|
{ .pinmux = Z_PINCTRL_STM32_PINMUX_INIT( \
|
|
DT_PROP_BY_IDX(node_id, state_prop, idx)), \
|
|
.pincfg = Z_PINCTRL_STM32_PINCFG_INIT( \
|
|
DT_PROP_BY_IDX(node_id, state_prop, idx)) },
|
|
|
|
/**
|
|
* @brief Utility macro to initialize state pins contained in a given property.
|
|
*
|
|
* @param node_id Node identifier.
|
|
* @param prop Property name describing state pins.
|
|
*/
|
|
#define Z_PINCTRL_STATE_PINS_INIT(node_id, prop) \
|
|
{DT_FOREACH_PROP_ELEM(node_id, prop, Z_PINCTRL_STATE_PIN_INIT)}
|
|
|
|
/** @endcond */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* ZEPHYR_SOC_ARM_ST_STM32_COMMON_PINCTRL_SOC_H_ */
|