text: /**
    ******************************************************************************
    * @file    stm32f30x_gpio.h
    * @author  MCD Application Team
    * @version V1.0.1
    * @date    23-October-2012
    * @brief   This file contains all the functions prototypes for the GPIO 
    *          firmware library. 
    ******************************************************************************
    * @attention
    *
    * <h2><center>&copy; COPYRIGHT 2012 STMicroelectronics</center></h2>
    *
    * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
    * You may not use this file except in compliance with the License.
    * You may obtain a copy of the License at:
    *
    *        http://www.st.com/software_license_agreement_liberty_v2
    *
    * Unless required by applicable law or agreed to in writing, software 
    * distributed under the License is distributed on an "AS IS" BASIS, 
    * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    * See the License for the specific language governing permissions and
    * limitations under the License.
    *
    ******************************************************************************
    */
  
  /* Define to prevent recursive inclusion -------------------------------------*/
  #ifndef __STM32F30x_GPIO_H
  #define __STM32F30x_GPIO_H
  
  #ifdef __cplusplus
   extern "C" {
  #endif
  
  /* Includes ------------------------------------------------------------------*/
  #include "stm32f30x.h"
  
  
  /** @addtogroup STM32F30x_StdPeriph_Driver
    * @{
    */
  
  /** @addtogroup GPIO
    * @{
    */
  
  /* Exported types ------------------------------------------------------------*/
   
  #define IS_GPIO_ALL_PERIPH(PERIPH) (((PERIPH) == GPIOA) || \
                                      ((PERIPH) == GPIOB) || \
                                      ((PERIPH) == GPIOC) || \
                                      ((PERIPH) == GPIOD) || \
                                      ((PERIPH) == GPIOE) || \
                                      ((PERIPH) == GPIOF))  
                                      
  #define IS_GPIO_LIST_PERIPH(PERIPH) (((PERIPH) == GPIOA) || \
                                       ((PERIPH) == GPIOB) || \
                                       ((PERIPH) == GPIOD))  
  /** @defgroup Configuration_Mode_enumeration 
    * @{
    */ 
  typedef enum
  { 
    GPIO_Mode_IN   = 0x00, /*!< GPIO Input Mode */
    GPIO_Mode_OUT  = 0x01, /*!< GPIO Output Mode */
    GPIO_Mode_AF   = 0x02, /*!< GPIO Alternate function Mode */
    GPIO_Mode_AN   = 0x03  /*!< GPIO Analog In/Out Mode      */
  }GPIOMode_TypeDef;
  
  #define IS_GPIO_MODE(MODE) (((MODE) == GPIO_Mode_IN)|| ((MODE) == GPIO_Mode_OUT) || \
                              ((MODE) == GPIO_Mode_AF)|| ((MODE) == GPIO_Mode_AN))
  /**
    * @}
    */
    
  /** @defgroup Output_type_enumeration
    * @{
    */ 
  typedef enum
  { 
    GPIO_OType_PP = 0x00,
    GPIO_OType_OD = 0x01
  }GPIOOType_TypeDef;
  
  #define IS_GPIO_OTYPE(OTYPE) (((OTYPE) == GPIO_OType_PP) || ((OTYPE) == GPIO_OType_OD))
  
  /**
    * @}
    */
  
  /** @defgroup Output_Maximum_frequency_enumeration 
    * @{
    */ 
  typedef enum
  { 
    GPIO_Speed_Level_1  = 0x01, /*!< Fast Speed     */
    GPIO_Speed_Level_2  = 0x02, /*!< Meduim Speed   */
    GPIO_Speed_Level_3  = 0x03  /*!< High Speed     */
  }GPIOSpeed_TypeDef;
  
  #define IS_GPIO_SPEED(SPEED) (((SPEED) == GPIO_Speed_Level_1) || ((SPEED) == GPIO_Speed_Level_2) || \
                                ((SPEED) == GPIO_Speed_Level_3))
  /**
    * @}
    */  
  
  /** @defgroup Configuration_Pull-Up_Pull-Down_enumeration 
    * @{
    */ 
  typedef enum
  {
    GPIO_PuPd_NOPULL = 0x00,
    GPIO_PuPd_UP     = 0x01,
    GPIO_PuPd_DOWN   = 0x02
  }GPIOPuPd_TypeDef;
  
  #define IS_GPIO_PUPD(PUPD) (((PUPD) == GPIO_PuPd_NOPULL) || ((PUPD) == GPIO_PuPd_UP) || \
                              ((PUPD) == GPIO_PuPd_DOWN))
  /**
    * @}
    */
  
  /** @defgroup Bit_SET_and_Bit_RESET_enumeration
    * @{
    */
  typedef enum
  { 
    Bit_RESET = 0,
    Bit_SET
  }BitAction;
  
  #define IS_GPIO_BIT_ACTION(ACTION) (((ACTION) == Bit_RESET) || ((ACTION) == Bit_SET))
  /**
    * @}
    */
  
  /** 
    * @brief  GPIO Init structure definition  
    */ 
  typedef struct
  {
    uint32_t GPIO_Pin;              /*!< Specifies the GPIO pins to be configured.
                                         This parameter can be any value of @ref GPIO_pins_define */
                                         
    GPIOMode_TypeDef GPIO_Mode;     /*!< Specifies the operating mode for the selected pins.
                                         This parameter can be a value of @ref GPIOMode_TypeDef   */
  
    GPIOSpeed_TypeDef GPIO_Speed;   /*!< Specifies the speed for the selected pins.
                                         This parameter can be a value of @ref GPIOSpeed_TypeDef  */
  
    GPIOOType_TypeDef GPIO_OType;   /*!< Specifies the operating output type for the selected pins.
                                         This parameter can be a value of @ref GPIOOType_TypeDef  */
  
    GPIOPuPd_TypeDef GPIO_PuPd;     /*!< Specifies the operating Pull-up/Pull down for the selected pins.
                                         This parameter can be a value of @ref GPIOPuPd_TypeDef   */
  }GPIO_InitTypeDef;
  
  /* Exported constants --------------------------------------------------------*/
  
  /** @defgroup GPIO_Exported_Constants
    * @{
    */ 
    
  /** @defgroup 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 IS_GPIO_PIN(PIN) ((PIN) != (uint16_t)0x00)
  
  #define IS_GET_GPIO_PIN(PIN) (((PIN) == GPIO_Pin_0) || \
                                ((PIN) == GPIO_Pin_1) || \
                                ((PIN) == GPIO_Pin_2) || \
                                ((PIN) == GPIO_Pin_3) || \
                                ((PIN) == GPIO_Pin_4) || \
                                ((PIN) == GPIO_Pin_5) || \
                                ((PIN) == GPIO_Pin_6) || \
                                ((PIN) == GPIO_Pin_7) || \
                                ((PIN) == GPIO_Pin_8) || \
                                ((PIN) == GPIO_Pin_9) || \
                                ((PIN) == GPIO_Pin_10) || \
                                ((PIN) == GPIO_Pin_11) || \
                                ((PIN) == GPIO_Pin_12) || \
                                ((PIN) == GPIO_Pin_13) || \
                                ((PIN) == GPIO_Pin_14) || \
                                ((PIN) == GPIO_Pin_15))
  
  /**
    * @}
    */
  
  /** @defgroup GPIO_Pin_sources 
    * @{
    */ 
  #define GPIO_PinSource0            ((uint8_t)0x00)
  #define GPIO_PinSource1            ((uint8_t)0x01)
  #define GPIO_PinSource2            ((uint8_t)0x02)
  #define GPIO_PinSource3            ((uint8_t)0x03)
  #define GPIO_PinSource4            ((uint8_t)0x04)
  #define GPIO_PinSource5            ((uint8_t)0x05)
  #define GPIO_PinSource6            ((uint8_t)0x06)
  #define GPIO_PinSource7            ((uint8_t)0x07)
  #define GPIO_PinSource8            ((uint8_t)0x08)
  #define GPIO_PinSource9            ((uint8_t)0x09)
  #define GPIO_PinSource10           ((uint8_t)0x0A)
  #define GPIO_PinSource11           ((uint8_t)0x0B)
  #define GPIO_PinSource12           ((uint8_t)0x0C)
  #define GPIO_PinSource13           ((uint8_t)0x0D)
  #define GPIO_PinSource14           ((uint8_t)0x0E)
  #define GPIO_PinSource15           ((uint8_t)0x0F)
  
  #define IS_GPIO_PIN_SOURCE(PINSOURCE) (((PINSOURCE) == GPIO_PinSource0) || \
                                         ((PINSOURCE) == GPIO_PinSource1) || \
                                         ((PINSOURCE) == GPIO_PinSource2) || \
                                         ((PINSOURCE) == GPIO_PinSource3) || \
                                         ((PINSOURCE) == GPIO_PinSource4) || \
                                         ((PINSOURCE) == GPIO_PinSource5) || \
                                         ((PINSOURCE) == GPIO_PinSource6) || \
                                         ((PINSOURCE) == GPIO_PinSource7) || \
                                         ((PINSOURCE) == GPIO_PinSource8) || \
                                         ((PINSOURCE) == GPIO_PinSource9) || \
                                         ((PINSOURCE) == GPIO_PinSource10) || \
                                         ((PINSOURCE) == GPIO_PinSource11) || \
                                         ((PINSOURCE) == GPIO_PinSource12) || \
                                         ((PINSOURCE) == GPIO_PinSource13) || \
                                         ((PINSOURCE) == GPIO_PinSource14) || \
                                         ((PINSOURCE) == GPIO_PinSource15))
  /**
    * @}
    */
  
  /** @defgroup GPIO_Alternate_function_selection_define 
    * @{
    */
  
  /** 
    * @brief  AF 0 selection
    */ 
  #define GPIO_AF_0            ((uint8_t)0x00) /* JTCK-SWCLK, JTDI, JTDO/TRACESW0, JTMS-SWDAT,  
                                                  MCO, NJTRST, TRACED, TRACECK */
  /** 
    * @brief  AF 1 selection
    */ 
  #define GPIO_AF_1            ((uint8_t)0x01) /*  OUT, TIM2, TIM15, TIM16, TIM17 */
  
  /** 
    * @brief  AF 2 selection
    */ 
  #define GPIO_AF_2            ((uint8_t)0x02) /* COMP1_OUT, TIM1, TIM2, TIM3, TIM4, TIM8, TIM15 */
  
  /** 
    * @brief  AF 3 selection
    */ 
  #define GPIO_AF_3            ((uint8_t)0x03) /* COMP7_OUT, TIM8, TIM15, Touch */
  
  /** 
    * @brief  AF 4 selection
    */ 
  #define GPIO_AF_4            ((uint8_t)0x04) /* I2C1, I2C2, TIM1, TIM8, TIM16, TIM17 */
  
  /** 
    * @brief  AF 5 selection
    */ 
  #define GPIO_AF_5            ((uint8_t)0x05) /* IR_OUT, I2S2, I2S3, SPI1, SPI2, TIM8, USART4, USART5 */
  
  /** 
    * @brief  AF 6 selection
    */ 
  #define GPIO_AF_6            ((uint8_t)0x06) /*  IR_OUT, I2S2, I2S3, SPI2, SPI3, TIM1, TIM8 */
  
  /** 
    * @brief  AF 7 selection
    */ 
  #define GPIO_AF_7            ((uint8_t)0x07) /* AOP2_OUT, CAN, COMP3_OUT, COMP5_OUT, COMP6_OUT, 
                                                  USART1, USART2, USART3 */
  
  /** 
    * @brief  AF 8 selection
    */ 
  #define GPIO_AF_8            ((uint8_t)0x08) /* COMP1_OUT, COMP2_OUT, COMP3_OUT, COMP4_OUT, 
                                                  COMP5_OUT, COMP6_OUT */
  
  /** 
    * @brief  AF 9 selection
    */ 
  #define GPIO_AF_9            ((uint8_t)0x09) /* AOP4_OUT, CAN, TIM1, TIM8, TIM15 */
  
  /** 
    * @brief  AF 10 selection
    */ 
  #define GPIO_AF_10            ((uint8_t)0x0A) /* AOP1_OUT, AOP3_OUT, TIM2, TIM3, TIM4, TIM8, TIM17 */
  
  /** 
    * @brief  AF 11 selection
    */ 
  #define GPIO_AF_11            ((uint8_t)0x0B) /* TIM1, TIM8 */
  
  /** 
     * @brief  AF 12 selection
     */ 
  #define GPIO_AF_12            ((uint8_t)0x0E) /* TIM1 */
  
  /** 
    * @brief  AF 14 selection
    */ 
  #define GPIO_AF_14            ((uint8_t)0x0E) /* USBDM, USBDP */
  
  /** 
    * @brief  AF 15 selection
    */ 
  #define GPIO_AF_15            ((uint8_t)0x0F) /* OUT */
  
  #define IS_GPIO_AF(AF)   (((AF) == GPIO_AF_0)||((AF) == GPIO_AF_1)||\
                            ((AF) == GPIO_AF_2)||((AF) == GPIO_AF_3)||\
                            ((AF) == GPIO_AF_4)||((AF) == GPIO_AF_5)||\
                            ((AF) == GPIO_AF_6)||((AF) == GPIO_AF_7)||\
                            ((AF) == GPIO_AF_8)||((AF) == GPIO_AF_9)||\
                            ((AF) == GPIO_AF_10)||((AF) == GPIO_AF_11)||\
                            ((AF) == GPIO_AF_14)||((AF) == GPIO_AF_15))
  
  /**
    * @}
    */
  
  /** @defgroup GPIO_Speed_Legacy 
    * @{
    */
  
  #define GPIO_Speed_10MHz GPIO_Speed_Level_1   /*!< Fast Speed:10MHz   */
  #define GPIO_Speed_2MHz  GPIO_Speed_Level_2   /*!< Medium Speed:2MHz  */
  #define GPIO_Speed_50MHz GPIO_Speed_Level_3   /*!< High Speed:50MHz   */
  
  /**
    * @}
    */
   
  /**
    * @}
    */ 
  
  /* Exported macro ------------------------------------------------------------*/
  /* Exported functions ------------------------------------------------------- */ 
  /* Function used to set the GPIO configuration to the default reset state *****/
  void GPIO_DeInit(GPIO_TypeDef* GPIOx);
  
  /* Initialization and Configuration functions *********************************/
  void GPIO_Init(GPIO_TypeDef* GPIOx, GPIO_InitTypeDef* GPIO_InitStruct);
  void GPIO_StructInit(GPIO_InitTypeDef* GPIO_InitStruct);
  void GPIO_PinLockConfig(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);
  
  /* GPIO Read and Write functions **********************************************/
  uint8_t GPIO_ReadInputDataBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);
  uint16_t GPIO_ReadInputData(GPIO_TypeDef* GPIOx);
  uint8_t GPIO_ReadOutputDataBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);
  uint16_t GPIO_ReadOutputData(GPIO_TypeDef* GPIOx);
  void GPIO_SetBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);
  void GPIO_ResetBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);
  void GPIO_WriteBit(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, BitAction BitVal);
  void GPIO_Write(GPIO_TypeDef* GPIOx, uint16_t PortVal);
  
  /* GPIO Alternate functions configuration functions ***************************/
  void GPIO_PinAFConfig(GPIO_TypeDef* GPIOx, uint16_t GPIO_PinSource, uint8_t GPIO_AF);
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif /* __STM32F30x_GPIO_H */
  /**
    * @}
    */ 
  
  /**
    * @}
    */ 
  
  /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  