| /* |
| * 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_ */ |
