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/* * Copyright (c) 2017 Linaro Limited * * SPDX-License-Identifier: Apache-2.0 */ #ifndef _STM32_PINCTRL_H_ #define _STM32_PINCTRL_H_ #include <dt-bindings/pinctrl/stm32-pinctrl-common.h> /** * @brief PIN configuration bitfield * * Pin configuration is coded with the following * fields * Alternate Functions [ 0 : 3 ] * GPIO Mode [ 4 : 5 ] * GPIO Output type [ 6 ] * GPIO Speed [ 7 : 8 ] * GPIO PUPD config [ 9 : 10 ] * * Applicable to STM32F3, STM32F4, STM32L4 series */ /* 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 /* _STM32_PINCTRL_H_ */