/**
  ******************************************************************************
  * @file    stm32f4xx_gpio.h
  * @author  MCD Application Team
  * @version V1.0.2
  * @date    05-March-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 __STM32F4xx_GPIO_H
#define __STM32F4xx_GPIO_H

#ifdef __cplusplus
 extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx.h"

/** @addtogroup STM32F4xx_StdPeriph_Driver
  * @{
  */

/** @addtogroup GPIO
  * @{
  */ 

/* Exported types ------------------------------------------------------------*/

#define IS_GPIO_ALL_PERIPH(PERIPH) (((PERIPH) == GPIOA) || \
                                    ((PERIPH) == GPIOB) || \
                                    ((PERIPH) == GPIOC) || \
                                    ((PERIPH) == GPIOD) || \
                                    ((PERIPH) == GPIOE) || \
                                    ((PERIPH) == GPIOF) || \
                                    ((PERIPH) == GPIOG) || \
                                    ((PERIPH) == GPIOH) || \
                                    ((PERIPH) == GPIOI))
                                                                
/** 
  * @brief  GPIO 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 Mode */
}GPIOMode_TypeDef;
#define IS_GPIO_MODE(MODE) (((MODE) == GPIO_Mode_IN)  || ((MODE) == GPIO_Mode_OUT) || \
                            ((MODE) == GPIO_Mode_AF)|| ((MODE) == GPIO_Mode_AN))

/** 
  * @brief  GPIO 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))


/** 
  * @brief  GPIO Output Maximum frequency enumeration 
  */  
typedef enum
{ 
  GPIO_Speed_2MHz   = 0x00, /*!< Low speed */
  GPIO_Speed_25MHz  = 0x01, /*!< Medium speed */
  GPIO_Speed_50MHz  = 0x02, /*!< Fast speed */
  GPIO_Speed_100MHz = 0x03  /*!< High speed on 30 pF (80 MHz Output max speed on 15 pF) */
}GPIOSpeed_TypeDef;
#define IS_GPIO_SPEED(SPEED) (((SPEED) == GPIO_Speed_2MHz) || ((SPEED) == GPIO_Speed_25MHz) || \
                              ((SPEED) == GPIO_Speed_50MHz)||  ((SPEED) == GPIO_Speed_100MHz)) 

/** 
  * @brief  GPIO Configuration PullUp PullDown 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))

/** 
  * @brief  GPIO 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) == 0x00) && ((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_Alternat_function_selection_define 
  * @{
  */ 
/** 
  * @brief   AF 0 selection  
  */ 
#define GPIO_AF_RTC_50Hz      ((uint8_t)0x00)  /* RTC_50Hz Alternate Function mapping */
#define GPIO_AF_MCO           ((uint8_t)0x00)  /* MCO (MCO1 and MCO2) Alternate Function mapping */
#define GPIO_AF_TAMPER        ((uint8_t)0x00)  /* TAMPER (TAMPER_1 and TAMPER_2) Alternate Function mapping */
#define GPIO_AF_SWJ           ((uint8_t)0x00)  /* SWJ (SWD and JTAG) Alternate Function mapping */
#define GPIO_AF_TRACE         ((uint8_t)0x00)  /* TRACE Alternate Function mapping */

/** 
  * @brief   AF 1 selection  
  */ 
#define GPIO_AF_TIM1          ((uint8_t)0x01)  /* TIM1 Alternate Function mapping */
#define GPIO_AF_TIM2          ((uint8_t)0x01)  /* TIM2 Alternate Function mapping */

/** 
  * @brief   AF 2 selection  
  */ 
#define GPIO_AF_TIM3          ((uint8_t)0x02)  /* TIM3 Alternate Function mapping */
#define GPIO_AF_TIM4          ((uint8_t)0x02)  /* TIM4 Alternate Function mapping */
#define GPIO_AF_TIM5          ((uint8_t)0x02)  /* TIM5 Alternate Function mapping */

/** 
  * @brief   AF 3 selection  
  */ 
#define GPIO_AF_TIM8          ((uint8_t)0x03)  /* TIM8 Alternate Function mapping */
#define GPIO_AF_TIM9          ((uint8_t)0x03)  /* TIM9 Alternate Function mapping */
#define GPIO_AF_TIM10         ((uint8_t)0x03)  /* TIM10 Alternate Function mapping */
#define GPIO_AF_TIM11         ((uint8_t)0x03)  /* TIM11 Alternate Function mapping */

/** 
  * @brief   AF 4 selection  
  */ 
#define GPIO_AF_I2C1          ((uint8_t)0x04)  /* I2C1 Alternate Function mapping */
#define GPIO_AF_I2C2          ((uint8_t)0x04)  /* I2C2 Alternate Function mapping */
#define GPIO_AF_I2C3          ((uint8_t)0x04)  /* I2C3 Alternate Function mapping */

/** 
  * @brief   AF 5 selection  
  */ 
#define GPIO_AF_SPI1          ((uint8_t)0x05)  /* SPI1 Alternate Function mapping */
#define GPIO_AF_SPI2          ((uint8_t)0x05)  /* SPI2/I2S2 Alternate Function mapping */

/** 
  * @brief   AF 6 selection  
  */ 
#define GPIO_AF_SPI3          ((uint8_t)0x06)  /* SPI3/I2S3 Alternate Function mapping */

/** 
  * @brief   AF 7 selection  
  */ 
#define GPIO_AF_USART1        ((uint8_t)0x07)  /* USART1 Alternate Function mapping */
#define GPIO_AF_USART2        ((uint8_t)0x07)  /* USART2 Alternate Function mapping */
#define GPIO_AF_USART3        ((uint8_t)0x07)  /* USART3 Alternate Function mapping */
#define GPIO_AF_I2S3ext       ((uint8_t)0x07)  /* I2S3ext Alternate Function mapping */

/** 
  * @brief   AF 8 selection  
  */ 
#define GPIO_AF_UART4         ((uint8_t)0x08)  /* UART4 Alternate Function mapping */
#define GPIO_AF_UART5         ((uint8_t)0x08)  /* UART5 Alternate Function mapping */
#define GPIO_AF_USART6        ((uint8_t)0x08)  /* USART6 Alternate Function mapping */

/** 
  * @brief   AF 9 selection 
  */ 
#define GPIO_AF_CAN1          ((uint8_t)0x09)  /* CAN1 Alternate Function mapping */
#define GPIO_AF_CAN2          ((uint8_t)0x09)  /* CAN2 Alternate Function mapping */
#define GPIO_AF_TIM12         ((uint8_t)0x09)  /* TIM12 Alternate Function mapping */
#define GPIO_AF_TIM13         ((uint8_t)0x09)  /* TIM13 Alternate Function mapping */
#define GPIO_AF_TIM14         ((uint8_t)0x09)  /* TIM14 Alternate Function mapping */

/** 
  * @brief   AF 10 selection  
  */ 
#define GPIO_AF_OTG_FS         ((uint8_t)0xA)  /* OTG_FS Alternate Function mapping */
#define GPIO_AF_OTG_HS         ((uint8_t)0xA)  /* OTG_HS Alternate Function mapping */

/** 
  * @brief   AF 11 selection  
  */ 
#define GPIO_AF_ETH             ((uint8_t)0x0B)  /* ETHERNET Alternate Function mapping */

/** 
  * @brief   AF 12 selection  
  */ 
#define GPIO_AF_FSMC            ((uint8_t)0xC)  /* FSMC Alternate Function mapping */
#define GPIO_AF_OTG_HS_FS       ((uint8_t)0xC)  /* OTG HS configured in FS, Alternate Function mapping */
#define GPIO_AF_SDIO            ((uint8_t)0xC)  /* SDIO Alternate Function mapping */

/** 
  * @brief   AF 13 selection  
  */ 
#define GPIO_AF_DCMI          ((uint8_t)0x0D)  /* DCMI Alternate Function mapping */

/** 
  * @brief   AF 15 selection  
  */ 
#define GPIO_AF_EVENTOUT      ((uint8_t)0x0F)  /* EVENTOUT Alternate Function mapping */

#define IS_GPIO_AF(AF)   (((AF) == GPIO_AF_RTC_50Hz)  || ((AF) == GPIO_AF_TIM14)  || \
                          ((AF) == GPIO_AF_MCO)       || ((AF) == GPIO_AF_TAMPER) || \
                          ((AF) == GPIO_AF_SWJ)       || ((AF) == GPIO_AF_TRACE)  || \
                          ((AF) == GPIO_AF_TIM1)      || ((AF) == GPIO_AF_TIM2)   || \
                          ((AF) == GPIO_AF_TIM3)      || ((AF) == GPIO_AF_TIM4)   || \
                          ((AF) == GPIO_AF_TIM5)      || ((AF) == GPIO_AF_TIM8)   || \
                          ((AF) == GPIO_AF_I2C1)      || ((AF) == GPIO_AF_I2C2)   || \
                          ((AF) == GPIO_AF_I2C3)      || ((AF) == GPIO_AF_SPI1)   || \
                          ((AF) == GPIO_AF_SPI2)      || ((AF) == GPIO_AF_TIM13)  || \
                          ((AF) == GPIO_AF_SPI3)      || ((AF) == GPIO_AF_TIM14)  || \
                          ((AF) == GPIO_AF_USART1)    || ((AF) == GPIO_AF_USART2) || \
                          ((AF) == GPIO_AF_USART3)    || ((AF) == GPIO_AF_UART4)  || \
                          ((AF) == GPIO_AF_UART5)     || ((AF) == GPIO_AF_USART6) || \
                          ((AF) == GPIO_AF_CAN1)      || ((AF) == GPIO_AF_CAN2)   || \
                          ((AF) == GPIO_AF_OTG_FS)    || ((AF) == GPIO_AF_OTG_HS) || \
                          ((AF) == GPIO_AF_ETH)       || ((AF) == GPIO_AF_FSMC)   || \
                          ((AF) == GPIO_AF_OTG_HS_FS) || ((AF) == GPIO_AF_SDIO)   || \
                          ((AF) == GPIO_AF_DCMI)      || ((AF) == GPIO_AF_EVENTOUT))
/**
  * @}
  */ 

/** @defgroup GPIO_Legacy 
  * @{
  */
    
#define GPIO_Mode_AIN           GPIO_Mode_AN

#define GPIO_AF_OTG1_FS         GPIO_AF_OTG_FS
#define GPIO_AF_OTG2_HS         GPIO_AF_OTG_HS
#define GPIO_AF_OTG2_FS         GPIO_AF_OTG_HS_FS

/**
  * @}
  */

/**
  * @}
  */

/* 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);
void GPIO_ToggleBits(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin);

/* GPIO Alternate functions configuration function ****************************/
void GPIO_PinAFConfig(GPIO_TypeDef* GPIOx, uint16_t GPIO_PinSource, uint8_t GPIO_AF);

#ifdef __cplusplus
}
#endif

#endif /*__STM32F4xx_GPIO_H */

/**
  * @}
  */ 

/**
  * @}
  */ 

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
