1 /* 2 * Copyright (c) 2024 STMicroelectronics 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 #ifndef ZEPHYR_INCLUDE_DT_BINDINGS_GPIO_STM32_GPIO_H_ 8 #define ZEPHYR_INCLUDE_DT_BINDINGS_GPIO_STM32_GPIO_H_ 9 10 /** 11 * @brief STM32 GPIO specific flags 12 * 13 * The driver flags are encoded in the 8 upper bits of @ref gpio_dt_flags_t as 14 * follows: 15 * 16 * - Bit 8: Configure a GPIO pin to power on the system after Poweroff. 17 * - Bit 10..9: Configure the output speed of a GPIO pin. 18 * 19 * @ingroup gpio_interface 20 * @{ 21 */ 22 23 /** 24 * Configures a GPIO pin to power on the system after Poweroff. 25 * This flag is reserved to GPIO pins that are associated with wake-up pins 26 * in STM32 PWR devicetree node, through the property "wkup-gpios". 27 */ 28 #define STM32_GPIO_WKUP (1 << 8) 29 30 /** @cond INTERNAL_HIDDEN */ 31 #define STM32_GPIO_SPEED_SHIFT 9 32 #define STM32_GPIO_SPEED_MASK 0x3 33 /** @endcond */ 34 35 /** Configure the GPIO pin output speed to be low */ 36 #define STM32_GPIO_LOW_SPEED (0x0 << STM32_GPIO_SPEED_SHIFT) 37 38 /** Configure the GPIO pin output speed to be medium */ 39 #define STM32_GPIO_MEDIUM_SPEED (0x1 << STM32_GPIO_SPEED_SHIFT) 40 41 /** Configure the GPIO pin output speed to be high */ 42 #define STM32_GPIO_HIGH_SPEED (0x2 << STM32_GPIO_SPEED_SHIFT) 43 44 /** Configure the GPIO pin output speed to be very high */ 45 #define STM32_GPIO_VERY_HIGH_SPEED (0x3 << STM32_GPIO_SPEED_SHIFT) 46 47 /** @} */ 48 49 #endif /* ZEPHYR_INCLUDE_DT_BINDINGS_GPIO_STM32_GPIO_H_ */ 50
