98 lines
3.8 KiB
C
98 lines
3.8 KiB
C
/*
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* Copyright (c) 2017 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 _STM32_PINCTRL_H_
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#define _STM32_PINCTRL_H_
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#include <dt-bindings/pinctrl/stm32-pinctrl-common.h>
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/**
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* @brief PIN configuration bitfield
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*
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* Pin configuration is coded with the following
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* fields
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* Alternate Functions [ 0 : 3 ]
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* GPIO Mode [ 4 : 5 ]
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* GPIO Output type [ 6 ]
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* GPIO Speed [ 7 : 8 ]
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* GPIO PUPD config [ 9 : 10 ]
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*
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* Applicable to STM32F3, STM32F4, STM32L4 series
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*/
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/* Alternate functions */
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#define STM32_FUNC_ALT_0 0
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#define STM32_FUNC_ALT_1 1
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#define STM32_FUNC_ALT_2 2
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#define STM32_FUNC_ALT_3 3
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#define STM32_FUNC_ALT_4 4
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#define STM32_FUNC_ALT_5 5
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#define STM32_FUNC_ALT_6 6
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#define STM32_FUNC_ALT_7 7
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#define STM32_FUNC_ALT_8 8
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#define STM32_FUNC_ALT_9 9
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#define STM32_FUNC_ALT_10 10
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#define STM32_FUNC_ALT_11 11
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#define STM32_FUNC_ALT_12 12
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#define STM32_FUNC_ALT_13 13
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#define STM32_FUNC_ALT_14 14
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#define STM32_FUNC_ALT_15 15
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#define STM32_AFR_MASK 0xF
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#define STM32_AFR_SHIFT 0
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/* GPIO Mode */
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#define STM32_MODER_INPUT_MODE (0x0<<STM32_MODER_SHIFT)
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#define STM32_MODER_OUTPUT_MODE (0x1<<STM32_MODER_SHIFT)
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#define STM32_MODER_ALT_MODE (0x2<<STM32_MODER_SHIFT)
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#define STM32_MODER_ANALOG_MODE (0x3<<STM32_MODER_SHIFT)
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#define STM32_MODER_MASK 0x3
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#define STM32_MODER_SHIFT 4
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/* GPIO Output type */
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#define STM32_OTYPER_PUSH_PULL (0x0<<STM32_OTYPER_SHIFT)
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#define STM32_OTYPER_OPEN_DRAIN (0x1<<STM32_OTYPER_SHIFT)
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#define STM32_OTYPER_MASK 0x1
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#define STM32_OTYPER_SHIFT 6
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/* GPIO speed */
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#define STM32_OSPEEDR_LOW_SPEED (0x0<<STM32_OSPEEDR_SHIFT)
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#define STM32_OSPEEDR_MEDIUM_SPEED (0x1<<STM32_OSPEEDR_SHIFT)
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#define STM32_OSPEEDR_HIGH_SPEED (0x2<<STM32_OSPEEDR_SHIFT)
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#define STM32_OSPEEDR_VERY_HIGH_SPEED (0x3<<STM32_OSPEEDR_SHIFT)
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#define STM32_OSPEEDR_MASK 0x3
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#define STM32_OSPEEDR_SHIFT 7
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/* GPIO High impedance/Pull-up/pull-down */
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#define STM32_PUPDR_NO_PULL (0x0<<STM32_PUPDR_SHIFT)
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#define STM32_PUPDR_PULL_UP (0x1<<STM32_PUPDR_SHIFT)
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#define STM32_PUPDR_PULL_DOWN (0x2<<STM32_PUPDR_SHIFT)
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#define STM32_PUPDR_MASK 0x3
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#define STM32_PUPDR_SHIFT 9
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/* Alternate functions definitions */
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#define STM32_PINMUX_ALT_FUNC_0 (STM32_FUNC_ALT_0 | STM32_MODER_ALT_MODE)
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#define STM32_PINMUX_ALT_FUNC_1 (STM32_FUNC_ALT_1 | STM32_MODER_ALT_MODE)
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#define STM32_PINMUX_ALT_FUNC_2 (STM32_FUNC_ALT_2 | STM32_MODER_ALT_MODE)
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#define STM32_PINMUX_ALT_FUNC_3 (STM32_FUNC_ALT_3 | STM32_MODER_ALT_MODE)
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#define STM32_PINMUX_ALT_FUNC_4 (STM32_FUNC_ALT_4 | STM32_MODER_ALT_MODE)
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#define STM32_PINMUX_ALT_FUNC_5 (STM32_FUNC_ALT_5 | STM32_MODER_ALT_MODE)
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#define STM32_PINMUX_ALT_FUNC_6 (STM32_FUNC_ALT_6 | STM32_MODER_ALT_MODE)
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#define STM32_PINMUX_ALT_FUNC_7 (STM32_FUNC_ALT_7 | STM32_MODER_ALT_MODE)
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#define STM32_PINMUX_ALT_FUNC_8 (STM32_FUNC_ALT_8 | STM32_MODER_ALT_MODE)
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#define STM32_PINMUX_ALT_FUNC_9 (STM32_FUNC_ALT_9 | STM32_MODER_ALT_MODE)
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#define STM32_PINMUX_ALT_FUNC_10 (STM32_FUNC_ALT_10 | STM32_MODER_ALT_MODE)
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#define STM32_PINMUX_ALT_FUNC_11 (STM32_FUNC_ALT_11 | STM32_MODER_ALT_MODE)
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#define STM32_PINMUX_ALT_FUNC_12 (STM32_FUNC_ALT_12 | STM32_MODER_ALT_MODE)
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#define STM32_PINMUX_ALT_FUNC_13 (STM32_FUNC_ALT_13 | STM32_MODER_ALT_MODE)
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#define STM32_PINMUX_ALT_FUNC_14 (STM32_FUNC_ALT_14 | STM32_MODER_ALT_MODE)
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#define STM32_PINMUX_ALT_FUNC_15 (STM32_FUNC_ALT_15 | STM32_MODER_ALT_MODE)
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/* Useful definitions */
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#define STM32_PUSHPULL_NOPULL (STM32_OTYPER_PUSH_PULL | STM32_PUPDR_NO_PULL)
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#define STM32_OPENDRAIN_PULLUP (STM32_OTYPER_OPEN_DRAIN | STM32_PUPDR_PULL_UP)
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#define STM32_PUSHPULL_PULLUP (STM32_OTYPER_PUSH_PULL | STM32_PUPDR_PULL_UP)
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#endif /* _STM32_PINCTRL_H_ */
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