text: /**
    ******************************************************************************
    * @file    stm32f1xx_hal_gpio.h
    * @author  MCD Application Team
    * @brief   Header file of GPIO HAL module.
    ******************************************************************************
    * @attention
    *
    * <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
    * All rights reserved.</center></h2>
    *
    * This software component is licensed by ST under BSD 3-Clause license,
    * the "License"; You may not use this file except in compliance with the
    * License. You may obtain a copy of the License at:
    *                        opensource.org/licenses/BSD-3-Clause
    *
    ******************************************************************************
    */
  
  /* Define to prevent recursive inclusion -------------------------------------*/
  #ifndef STM32F1xx_HAL_GPIO_H
  #define STM32F1xx_HAL_GPIO_H
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  /* Includes ------------------------------------------------------------------*/
  #include "stm32f1xx_hal_def.h"
  
  /** @addtogroup STM32F1xx_HAL_Driver
    * @{
    */
  
  /** @addtogroup GPIO
    * @{
    */
  
  /* Exported types ------------------------------------------------------------*/
  /** @defgroup GPIO_Exported_Types GPIO Exported Types
    * @{
    */
  
  /**
    * @brief GPIO Init structure definition
    */
  typedef struct
  {
    uint32_t Pin;       /*!< Specifies the GPIO pins to be configured.
                             This parameter can be any value of @ref GPIO_pins_define */
  
    uint32_t Mode;      /*!< Specifies the operating mode for the selected pins.
                             This parameter can be a value of @ref GPIO_mode_define */
  
    uint32_t Pull;      /*!< Specifies the Pull-up or Pull-Down activation for the selected pins.
                             This parameter can be a value of @ref GPIO_pull_define */
  
    uint32_t Speed;     /*!< Specifies the speed for the selected pins.
                             This parameter can be a value of @ref GPIO_speed_define */
  } GPIO_InitTypeDef;
  
  /**
    * @brief  GPIO Bit SET and Bit RESET enumeration
    */
  typedef enum
  {
    GPIO_PIN_RESET = 0u,
    GPIO_PIN_SET
  } GPIO_PinState;
  /**
    * @}
    */
  
  /* Exported constants --------------------------------------------------------*/
  
  /** @defgroup GPIO_Exported_Constants GPIO Exported Constants
    * @{
    */
  
  /** @defgroup GPIO_pins_define GPIO pins define
    * @{
    */
  
  #define GPIO_PIN_0                 ((uint16_t)0x0001)  /* Pin 0 selected    */
  #define GPIO_PIN_1                 ((uint16_t)0x0002)  /* Pin 1 selected    */
  #define GPIO_PIN_2                 ((uint16_t)0x0004)  /* Pin 2 selected    */
  #define GPIO_PIN_3                 ((uint16_t)0x0008)  /* Pin 3 selected    */
  #define GPIO_PIN_4                 ((uint16_t)0x0010)  /* Pin 4 selected    */
  #define GPIO_PIN_5                 ((uint16_t)0x0020)  /* Pin 5 selected    */
  #define GPIO_PIN_6                 ((uint16_t)0x0040)  /* Pin 6 selected    */
  #define GPIO_PIN_7                 ((uint16_t)0x0080)  /* Pin 7 selected    */
  #define GPIO_PIN_8                 ((uint16_t)0x0100)  /* Pin 8 selected    */
  #define GPIO_PIN_9                 ((uint16_t)0x0200)  /* Pin 9 selected    */
  #define GPIO_PIN_10                ((uint16_t)0x0400)  /* Pin 10 selected   */
  #define GPIO_PIN_11                ((uint16_t)0x0800)  /* Pin 11 selected   */
  #define GPIO_PIN_12                ((uint16_t)0x1000)  /* Pin 12 selected   */
  #define GPIO_PIN_13                ((uint16_t)0x2000)  /* Pin 13 selected   */
  #define GPIO_PIN_14                ((uint16_t)0x4000)  /* Pin 14 selected   */
  #define GPIO_PIN_15                ((uint16_t)0x8000)  /* Pin 15 selected   */
  #define GPIO_PIN_All               ((uint16_t)0xFFFF)  /* All pins selected */
  
  #define GPIO_PIN_MASK              0x0000FFFFu /* PIN mask for assert test */
  /**
    * @}
    */
  
  /** @defgroup GPIO_mode_define GPIO mode define
    * @brief GPIO Configuration Mode
    *        Elements values convention: 0xX0yz00YZ
    *           - X  : GPIO mode or EXTI Mode
    *           - y  : External IT or Event trigger detection
    *           - z  : IO configuration on External IT or Event
    *           - Y  : Output type (Push Pull or Open Drain)
    *           - Z  : IO Direction mode (Input, Output, Alternate or Analog)
    * @{
    */
  #define  GPIO_MODE_INPUT                        0x00000000u   /*!< Input Floating Mode                   */
  #define  GPIO_MODE_OUTPUT_PP                    0x00000001u   /*!< Output Push Pull Mode                 */
  #define  GPIO_MODE_OUTPUT_OD                    0x00000011u   /*!< Output Open Drain Mode                */
  #define  GPIO_MODE_AF_PP                        0x00000002u   /*!< Alternate Function Push Pull Mode     */
  #define  GPIO_MODE_AF_OD                        0x00000012u   /*!< Alternate Function Open Drain Mode    */
  #define  GPIO_MODE_AF_INPUT                     GPIO_MODE_INPUT          /*!< Alternate Function Input Mode         */
  
  #define  GPIO_MODE_ANALOG                       0x00000003u   /*!< Analog Mode  */
  
  #define  GPIO_MODE_IT_RISING                    0x10110000u   /*!< External Interrupt Mode with Rising edge trigger detection          */
  #define  GPIO_MODE_IT_FALLING                   0x10210000u   /*!< External Interrupt Mode with Falling edge trigger detection         */
  #define  GPIO_MODE_IT_RISING_FALLING            0x10310000u   /*!< External Interrupt Mode with Rising/Falling edge trigger detection  */
  
  #define  GPIO_MODE_EVT_RISING                   0x10120000u   /*!< External Event Mode with Rising edge trigger detection               */
  #define  GPIO_MODE_EVT_FALLING                  0x10220000u   /*!< External Event Mode with Falling edge trigger detection              */
  #define  GPIO_MODE_EVT_RISING_FALLING           0x10320000u   /*!< External Event Mode with Rising/Falling edge trigger detection       */
  
  /**
    * @}
    */
  
  /** @defgroup GPIO_speed_define  GPIO speed define
    * @brief GPIO Output Maximum frequency
    * @{
    */
  #define  GPIO_SPEED_FREQ_LOW              (GPIO_CRL_MODE0_1) /*!< Low speed */
  #define  GPIO_SPEED_FREQ_MEDIUM           (GPIO_CRL_MODE0_0) /*!< Medium speed */
  #define  GPIO_SPEED_FREQ_HIGH             (GPIO_CRL_MODE0)   /*!< High speed */
  
  /**
    * @}
    */
  
  /** @defgroup GPIO_pull_define GPIO pull define
    * @brief GPIO Pull-Up or Pull-Down Activation
    * @{
    */
  #define  GPIO_NOPULL        0x00000000u   /*!< No Pull-up or Pull-down activation  */
  #define  GPIO_PULLUP        0x00000001u   /*!< Pull-up activation                  */
  #define  GPIO_PULLDOWN      0x00000002u   /*!< Pull-down activation                */
  /**
    * @}
    */
  
  /**
    * @}
    */
  
  /* Exported macro ------------------------------------------------------------*/
  /** @defgroup GPIO_Exported_Macros GPIO Exported Macros
    * @{
    */
  
  /**
    * @brief  Checks whether the specified EXTI line flag is set or not.
    * @param  __EXTI_LINE__: specifies the EXTI line flag to check.
    *         This parameter can be GPIO_PIN_x where x can be(0..15)
    * @retval The new state of __EXTI_LINE__ (SET or RESET).
    */
  #define __HAL_GPIO_EXTI_GET_FLAG(__EXTI_LINE__) (EXTI->PR & (__EXTI_LINE__))
  
  /**
    * @brief  Clears the EXTI's line pending flags.
    * @param  __EXTI_LINE__: specifies the EXTI lines flags to clear.
    *         This parameter can be any combination of GPIO_PIN_x where x can be (0..15)
    * @retval None
    */
  #define __HAL_GPIO_EXTI_CLEAR_FLAG(__EXTI_LINE__) (EXTI->PR = (__EXTI_LINE__))
  
  /**
    * @brief  Checks whether the specified EXTI line is asserted or not.
    * @param  __EXTI_LINE__: specifies the EXTI line to check.
    *          This parameter can be GPIO_PIN_x where x can be(0..15)
    * @retval The new state of __EXTI_LINE__ (SET or RESET).
    */
  #define __HAL_GPIO_EXTI_GET_IT(__EXTI_LINE__) (EXTI->PR & (__EXTI_LINE__))
  
  /**
    * @brief  Clears the EXTI's line pending bits.
    * @param  __EXTI_LINE__: specifies the EXTI lines to clear.
    *          This parameter can be any combination of GPIO_PIN_x where x can be (0..15)
    * @retval None
    */
  #define __HAL_GPIO_EXTI_CLEAR_IT(__EXTI_LINE__) (EXTI->PR = (__EXTI_LINE__))
  
  /**
    * @brief  Generates a Software interrupt on selected EXTI line.
    * @param  __EXTI_LINE__: specifies the EXTI line to check.
    *          This parameter can be GPIO_PIN_x where x can be(0..15)
    * @retval None
    */
  #define __HAL_GPIO_EXTI_GENERATE_SWIT(__EXTI_LINE__) (EXTI->SWIER |= (__EXTI_LINE__))
  /**
    * @}
    */
  
  /* Include GPIO HAL Extension module */
  #include "stm32f1xx_hal_gpio_ex.h"
  
  /* Exported functions --------------------------------------------------------*/
  /** @addtogroup GPIO_Exported_Functions
    * @{
    */
  
  /** @addtogroup GPIO_Exported_Functions_Group1
    * @{
    */
  /* Initialization and de-initialization functions *****************************/
  void  HAL_GPIO_Init(GPIO_TypeDef  *GPIOx, GPIO_InitTypeDef *GPIO_Init);
  void  HAL_GPIO_DeInit(GPIO_TypeDef  *GPIOx, uint32_t GPIO_Pin);
  /**
    * @}
    */
  
  /** @addtogroup GPIO_Exported_Functions_Group2
    * @{
    */
  /* IO operation functions *****************************************************/
  GPIO_PinState HAL_GPIO_ReadPin(GPIO_TypeDef *GPIOx, uint16_t GPIO_Pin);
  void HAL_GPIO_WritePin(GPIO_TypeDef *GPIOx, uint16_t GPIO_Pin, GPIO_PinState PinState);
  void HAL_GPIO_TogglePin(GPIO_TypeDef *GPIOx, uint16_t GPIO_Pin);
  HAL_StatusTypeDef HAL_GPIO_LockPin(GPIO_TypeDef *GPIOx, uint16_t GPIO_Pin);
  void HAL_GPIO_EXTI_IRQHandler(uint16_t GPIO_Pin);
  void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin);
  
  /**
    * @}
    */
  
  /**
    * @}
    */
  /* Private types -------------------------------------------------------------*/
  /* Private variables ---------------------------------------------------------*/
  /* Private constants ---------------------------------------------------------*/
  /** @defgroup GPIO_Private_Constants GPIO Private Constants
    * @{
    */
  
  /**
    * @}
    */
  
  /* Private macros ------------------------------------------------------------*/
  /** @defgroup GPIO_Private_Macros GPIO Private Macros
    * @{
    */
  #define IS_GPIO_PIN_ACTION(ACTION) (((ACTION) == GPIO_PIN_RESET) || ((ACTION) == GPIO_PIN_SET))
  #define IS_GPIO_PIN(PIN)           (((((uint32_t)PIN) & GPIO_PIN_MASK ) != 0x00u) && ((((uint32_t)PIN) & ~GPIO_PIN_MASK) == 0x00u))
  #define IS_GPIO_MODE(MODE) (((MODE) == GPIO_MODE_INPUT)              ||\
                              ((MODE) == GPIO_MODE_OUTPUT_PP)          ||\
                              ((MODE) == GPIO_MODE_OUTPUT_OD)          ||\
                              ((MODE) == GPIO_MODE_AF_PP)              ||\
                              ((MODE) == GPIO_MODE_AF_OD)              ||\
                              ((MODE) == GPIO_MODE_IT_RISING)          ||\
                              ((MODE) == GPIO_MODE_IT_FALLING)         ||\
                              ((MODE) == GPIO_MODE_IT_RISING_FALLING)  ||\
                              ((MODE) == GPIO_MODE_EVT_RISING)         ||\
                              ((MODE) == GPIO_MODE_EVT_FALLING)        ||\
                              ((MODE) == GPIO_MODE_EVT_RISING_FALLING) ||\
                              ((MODE) == GPIO_MODE_ANALOG))
  #define IS_GPIO_SPEED(SPEED) (((SPEED) == GPIO_SPEED_FREQ_LOW) || \
                                ((SPEED) == GPIO_SPEED_FREQ_MEDIUM) || ((SPEED) == GPIO_SPEED_FREQ_HIGH))
  #define IS_GPIO_PULL(PULL) (((PULL) == GPIO_NOPULL) || ((PULL) == GPIO_PULLUP) || \
                              ((PULL) == GPIO_PULLDOWN))
  /**
    * @}
    */
  
  /* Private functions ---------------------------------------------------------*/
  /** @defgroup GPIO_Private_Functions GPIO Private Functions
    * @{
    */
  
  /**
    * @}
    */
  
  /**
    * @}
    */
  
  /**
    * @}
    */
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif /* STM32F1xx_HAL_GPIO_H */
  
  /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  