stm32f1-pinctrl.h

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/*
 * Copyright (c) 2017 Linaro Limited
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef ZEPHYR_STM32_PINCTRLF1_H_
#define ZEPHYR_STM32_PINCTRLF1_H_
 
#include <zephyr/dt-bindings/pinctrl/stm32-pinctrl-common.h>
#include <zephyr/dt-bindings/pinctrl/stm32f1-afio.h>
 
/* Adapted from Linux: include/dt-bindings/pinctrl/stm32-pinfunc.h */
 
#define STM32_MODE_SHIFT  0U
#define STM32_MODE_MASK   0x3U
#define STM32_LINE_SHIFT  2U
#define STM32_LINE_MASK   0xFU
#define STM32_PORT_SHIFT  6U
#define STM32_PORT_MASK   0xFU
#define STM32_REMAP_SHIFT 10U
#define STM32_REMAP_MASK  0x3FFU
 
#define STM32F1_PINMUX(port, line, mode, remap)                                \
                (((((port) - 'A') & STM32_PORT_MASK) << STM32_PORT_SHIFT) |    \
                (((line) & STM32_LINE_MASK) << STM32_LINE_SHIFT) |             \
                (((mode) & STM32_MODE_MASK) << STM32_MODE_SHIFT) |             \
                (((remap) & STM32_REMAP_MASK) << STM32_REMAP_SHIFT))
 
#define ALTERNATE       0x0  /* Alternate function output */
#define GPIO_IN         0x1  /* Input */
#define ANALOG          0x2  /* Analog */
#define GPIO_OUT        0x3  /* Output */
 
/* Port Mode */
#define STM32_MODE_INPUT                (0x0 << STM32_MODE_INOUT_SHIFT)
#define STM32_MODE_OUTPUT               (0x1 << STM32_MODE_INOUT_SHIFT)
#define STM32_MODE_INOUT_MASK           0x1
#define STM32_MODE_INOUT_SHIFT          0
 
/* Input Port configuration */
#define STM32_CNF_IN_ANALOG             (0x0 << STM32_CNF_IN_SHIFT)
#define STM32_CNF_IN_FLOAT              (0x1 << STM32_CNF_IN_SHIFT)
#define STM32_CNF_IN_PUPD               (0x2 << STM32_CNF_IN_SHIFT)
#define STM32_CNF_IN_MASK               0x3
#define STM32_CNF_IN_SHIFT              1
 
/* Output Port configuration */
#define STM32_MODE_OUTPUT_MAX_10        (0x0 << STM32_MODE_OSPEED_SHIFT)
#define STM32_MODE_OUTPUT_MAX_2         (0x1 << STM32_MODE_OSPEED_SHIFT)
#define STM32_MODE_OUTPUT_MAX_50        (0x2 << STM32_MODE_OSPEED_SHIFT)
#define STM32_MODE_OSPEED_MASK          0x3
#define STM32_MODE_OSPEED_SHIFT         3
 
#define STM32_CNF_PUSH_PULL             (0x0 << STM32_CNF_OUT_0_SHIFT)
#define STM32_CNF_OPEN_DRAIN            (0x1 << STM32_CNF_OUT_0_SHIFT)
#define STM32_CNF_OUT_0_MASK            0x1
#define STM32_CNF_OUT_0_SHIFT           5
 
#define STM32_CNF_GP_OUTPUT             (0x0 << STM32_CNF_OUT_1_SHIFT)
#define STM32_CNF_ALT_FUNC              (0x1 << STM32_CNF_OUT_1_SHIFT)
#define STM32_CNF_OUT_1_MASK            0x1
#define STM32_CNF_OUT_1_SHIFT           6
 
/* GPIO High impedance/Pull-up/Pull-down */
#define STM32_PUPD_NO_PULL              (0x0 << STM32_PUPD_SHIFT)
#define STM32_PUPD_PULL_UP              (0x1 << STM32_PUPD_SHIFT)
#define STM32_PUPD_PULL_DOWN            (0x2 << STM32_PUPD_SHIFT)
#define STM32_PUPD_MASK                 0x3
#define STM32_PUPD_SHIFT                7
 
/* GPIO plain output value */
#define STM32_ODR_0                     (0x0 << STM32_ODR_SHIFT)
#define STM32_ODR_1                     (0x1 << STM32_ODR_SHIFT)
#define STM32_ODR_MASK                  0x1
#define STM32_ODR_SHIFT                 9
 
#endif  /* ZEPHYR_STM32_PINCTRLF1_H_ */