stm32-pinctrl.h

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/*
 * Copyright (c) 2017 Linaro Limited
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef ZEPHYR_INCLUDE_DT_BINDINGS_PINCTRL_STM32_PINCTRL_H_
#define ZEPHYR_INCLUDE_DT_BINDINGS_PINCTRL_STM32_PINCTRL_H_
 
#include <dt-bindings/pinctrl/stm32-pinctrl-common.h>
 
/* Adapted from Linux: include/dt-bindings/pinctrl/stm32-pinfunc.h */
 
#define STM32_AF0     0x0
#define STM32_AF1     0x1
#define STM32_AF2     0x2
#define STM32_AF3     0x3
#define STM32_AF4     0x4
#define STM32_AF5     0x5
#define STM32_AF6     0x6
#define STM32_AF7     0x7
#define STM32_AF8     0x8
#define STM32_AF9     0x9
#define STM32_AF10    0xa
#define STM32_AF11    0xb
#define STM32_AF12    0xc
#define STM32_AF13    0xd
#define STM32_AF14    0xe
#define STM32_AF15    0xf
#define STM32_ANALOG  0x10
 
#define PIN_NO(port, line)      (((port) - 'A') * 0x10 + (line))
#define STM32_PINMUX(port, line, mode) (((PIN_NO(port, line)) << 8) | (STM32_ ## mode))
 
/* Alternate functions */
#define STM32_FUNC_ALT_0                0
#define STM32_FUNC_ALT_1                1
#define STM32_FUNC_ALT_2                2
#define STM32_FUNC_ALT_3                3
#define STM32_FUNC_ALT_4                4
#define STM32_FUNC_ALT_5                5
#define STM32_FUNC_ALT_6                6
#define STM32_FUNC_ALT_7                7
#define STM32_FUNC_ALT_8                8
#define STM32_FUNC_ALT_9                9
#define STM32_FUNC_ALT_10               10
#define STM32_FUNC_ALT_11               11
#define STM32_FUNC_ALT_12               12
#define STM32_FUNC_ALT_13               13
#define STM32_FUNC_ALT_14               14
#define STM32_FUNC_ALT_15               15
#define STM32_AFR_MASK                  0xF
#define STM32_AFR_SHIFT                 0
 
/* GPIO Mode */
#define STM32_MODER_INPUT_MODE          (0x0<<STM32_MODER_SHIFT)
#define STM32_MODER_OUTPUT_MODE         (0x1<<STM32_MODER_SHIFT)
#define STM32_MODER_ALT_MODE            (0x2<<STM32_MODER_SHIFT)
#define STM32_MODER_ANALOG_MODE         (0x3<<STM32_MODER_SHIFT)
#define STM32_MODER_MASK                0x3
#define STM32_MODER_SHIFT               4
 
/* GPIO Output type */
#define STM32_OTYPER_PUSH_PULL          (0x0<<STM32_OTYPER_SHIFT)
#define STM32_OTYPER_OPEN_DRAIN         (0x1<<STM32_OTYPER_SHIFT)
#define STM32_OTYPER_MASK               0x1
#define STM32_OTYPER_SHIFT              6
 
/* GPIO speed */
#define STM32_OSPEEDR_LOW_SPEED         (0x0<<STM32_OSPEEDR_SHIFT)
#define STM32_OSPEEDR_MEDIUM_SPEED      (0x1<<STM32_OSPEEDR_SHIFT)
#define STM32_OSPEEDR_HIGH_SPEED        (0x2<<STM32_OSPEEDR_SHIFT)
#define STM32_OSPEEDR_VERY_HIGH_SPEED   (0x3<<STM32_OSPEEDR_SHIFT)
#define STM32_OSPEEDR_MASK              0x3
#define STM32_OSPEEDR_SHIFT             7
 
/* GPIO High impedance/Pull-up/pull-down */
#define STM32_PUPDR_NO_PULL             (0x0<<STM32_PUPDR_SHIFT)
#define STM32_PUPDR_PULL_UP             (0x1<<STM32_PUPDR_SHIFT)
#define STM32_PUPDR_PULL_DOWN           (0x2<<STM32_PUPDR_SHIFT)
#define STM32_PUPDR_MASK                0x3
#define STM32_PUPDR_SHIFT               9
 
/* Alternate functions definitions */
#define STM32_PINMUX_ALT_FUNC_0 (STM32_FUNC_ALT_0 | STM32_MODER_ALT_MODE)
#define STM32_PINMUX_ALT_FUNC_1 (STM32_FUNC_ALT_1 | STM32_MODER_ALT_MODE)
#define STM32_PINMUX_ALT_FUNC_2 (STM32_FUNC_ALT_2 | STM32_MODER_ALT_MODE)
#define STM32_PINMUX_ALT_FUNC_3 (STM32_FUNC_ALT_3 | STM32_MODER_ALT_MODE)
#define STM32_PINMUX_ALT_FUNC_4 (STM32_FUNC_ALT_4 | STM32_MODER_ALT_MODE)
#define STM32_PINMUX_ALT_FUNC_5 (STM32_FUNC_ALT_5 | STM32_MODER_ALT_MODE)
#define STM32_PINMUX_ALT_FUNC_6 (STM32_FUNC_ALT_6 | STM32_MODER_ALT_MODE)
#define STM32_PINMUX_ALT_FUNC_7 (STM32_FUNC_ALT_7 | STM32_MODER_ALT_MODE)
#define STM32_PINMUX_ALT_FUNC_8 (STM32_FUNC_ALT_8 | STM32_MODER_ALT_MODE)
#define STM32_PINMUX_ALT_FUNC_9 (STM32_FUNC_ALT_9 | STM32_MODER_ALT_MODE)
#define STM32_PINMUX_ALT_FUNC_10 (STM32_FUNC_ALT_10 | STM32_MODER_ALT_MODE)
#define STM32_PINMUX_ALT_FUNC_11 (STM32_FUNC_ALT_11 | STM32_MODER_ALT_MODE)
#define STM32_PINMUX_ALT_FUNC_12 (STM32_FUNC_ALT_12 | STM32_MODER_ALT_MODE)
#define STM32_PINMUX_ALT_FUNC_13 (STM32_FUNC_ALT_13 | STM32_MODER_ALT_MODE)
#define STM32_PINMUX_ALT_FUNC_14 (STM32_FUNC_ALT_14 | STM32_MODER_ALT_MODE)
#define STM32_PINMUX_ALT_FUNC_15 (STM32_FUNC_ALT_15 | STM32_MODER_ALT_MODE)
 
/* Useful definitions */
#define STM32_PUSHPULL_NOPULL    (STM32_OTYPER_PUSH_PULL | STM32_PUPDR_NO_PULL)
#define STM32_OPENDRAIN_PULLUP   (STM32_OTYPER_OPEN_DRAIN | STM32_PUPDR_PULL_UP)
#define STM32_PUSHPULL_PULLUP    (STM32_OTYPER_PUSH_PULL | STM32_PUPDR_PULL_UP)
 
#endif  /* ZEPHYR_INCLUDE_DT_BINDINGS_PINCTRL_STM32_PINCTRL_H_ */