Line data    Source code

       1            0 : /*
       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              :  * @defgroup gpio_interface_stm32 STM32 GPIO specific flags
      13              :  * @ingroup gpio_interface_ext
      14              :  *
      15              :  * The driver flags are encoded in the 8 upper bits of @ref gpio_dt_flags_t as
      16              :  * follows:
      17              :  *
      18              :  * - Bit 8: Configure a GPIO pin to power on the system after Poweroff.
      19              :  * - Bit 10..9: Configure the output speed of a GPIO pin.
      20              :  *
      21              :  * @{
      22              :  */
      23              : 
      24              : /**
      25              :  * Configures a GPIO pin to power on the system after Poweroff.
      26              :  * This flag is reserved to GPIO pins that are associated with wake-up pins
      27              :  * in STM32 PWR devicetree node, through the property "wkup-gpios".
      28              :  */
      29            1 : #define STM32_GPIO_WKUP (1 << 8)
      30              : 
      31              : /** @cond INTERNAL_HIDDEN */
      32              : #define STM32_GPIO_SPEED_SHIFT 9
      33              : #define STM32_GPIO_SPEED_MASK  0x3
      34              : /** @endcond */
      35              : 
      36              : /** Configure the GPIO pin output speed to be low */
      37            1 : #define STM32_GPIO_LOW_SPEED (0x0 << STM32_GPIO_SPEED_SHIFT)
      38              : 
      39              : /** Configure the GPIO pin output speed to be medium */
      40            1 : #define STM32_GPIO_MEDIUM_SPEED (0x1 << STM32_GPIO_SPEED_SHIFT)
      41              : 
      42              : /** Configure the GPIO pin output speed to be high */
      43            1 : #define STM32_GPIO_HIGH_SPEED (0x2 << STM32_GPIO_SPEED_SHIFT)
      44              : 
      45              : /** Configure the GPIO pin output speed to be very high */
      46            1 : #define STM32_GPIO_VERY_HIGH_SPEED (0x3 << STM32_GPIO_SPEED_SHIFT)
      47              : 
      48              : /** @} */
      49              : 
      50              : #endif /* ZEPHYR_INCLUDE_DT_BINDINGS_GPIO_STM32_GPIO_H_ */