--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/f103c8/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_gpio.c	Mon Jan 16 11:04:47 2017 +0300
@@ -0,0 +1,597 @@
+/**
+  ******************************************************************************
+  * @file    stm32f1xx_hal_gpio.c
+  * @author  MCD Application Team
+  * @version V1.0.4
+  * @date    29-April-2016
+  * @brief   GPIO HAL module driver.
+  *         This file provides firmware functions to manage the following 
+  *          functionalities of the General Purpose Input/Output (GPIO) peripheral:
+  *           + Initialization and de-initialization functions
+  *           + IO operation functions
+  *         
+  @verbatim
+  ==============================================================================
+                    ##### GPIO Peripheral features #####
+  ==============================================================================         
+  [..] 
+  Subject to the specific hardware characteristics of each I/O port listed in the datasheet, each
+  port bit of the General Purpose IO (GPIO) Ports, can be individually configured by software
+  in several modes:
+  (+) Input mode 
+  (+) Analog mode
+  (+) Output mode
+  (+) Alternate function mode
+  (+) External interrupt/event lines
+
+  [..]  
+  During and just after reset, the alternate functions and external interrupt  
+  lines are not active and the I/O ports are configured in input floating mode.
+  
+  [..]   
+  All GPIO pins have weak internal pull-up and pull-down resistors, which can be 
+  activated or not.
+
+  [..]
+  In Output or Alternate mode, each IO can be configured on open-drain or push-pull
+  type and the IO speed can be selected depending on the VDD value.
+
+  [..]  
+  All ports have external interrupt/event capability. To use external interrupt 
+  lines, the port must be configured in input mode. All available GPIO pins are 
+  connected to the 16 external interrupt/event lines from EXTI0 to EXTI15.
+  
+  [..]  
+  The external interrupt/event controller consists of up to 20 edge detectors in connectivity
+  line devices, or 19 edge detectors in other devices for generating event/interrupt requests.
+  Each input line can be independently configured to select the type (event or interrupt) and
+  the corresponding trigger event (rising or falling or both). Each line can also masked
+  independently. A pending register maintains the status line of the interrupt requests
+ 
+                     ##### How to use this driver #####
+  ==============================================================================  
+ [..]             
+   (#) Enable the GPIO APB2 clock using the following function : __HAL_RCC_GPIOx_CLK_ENABLE(). 
+   
+   (#) Configure the GPIO pin(s) using HAL_GPIO_Init().
+       (++) Configure the IO mode using "Mode" member from GPIO_InitTypeDef structure
+       (++) Activate Pull-up, Pull-down resistor using "Pull" member from GPIO_InitTypeDef 
+            structure.
+       (++) In case of Output or alternate function mode selection: the speed is 
+            configured through "Speed" member from GPIO_InitTypeDef structure
+       (++) Analog mode is required when a pin is to be used as ADC channel 
+            or DAC output.
+       (++) In case of external interrupt/event selection the "Mode" member from 
+            GPIO_InitTypeDef structure select the type (interrupt or event) and 
+            the corresponding trigger event (rising or falling or both).
+   
+   (#) In case of external interrupt/event mode selection, configure NVIC IRQ priority 
+       mapped to the EXTI line using HAL_NVIC_SetPriority() and enable it using
+       HAL_NVIC_EnableIRQ().
+         
+   (#) To get the level of a pin configured in input mode use HAL_GPIO_ReadPin().
+            
+   (#) To set/reset the level of a pin configured in output mode use 
+       HAL_GPIO_WritePin()/HAL_GPIO_TogglePin().
+  
+   (#) To lock pin configuration until next reset use HAL_GPIO_LockPin().
+                 
+   (#) During and just after reset, the alternate functions are not 
+       active and the GPIO pins are configured in input floating mode (except JTAG
+       pins).
+  
+   (#) The LSE oscillator pins OSC32_IN and OSC32_OUT can be used as general purpose 
+       (PC14 and PC15, respectively) when the LSE oscillator is off. The LSE has 
+       priority over the GPIO function.
+  
+   (#) The HSE oscillator pins OSC_IN/OSC_OUT can be used as 
+       general purpose PD0 and PD1, respectively, when the HSE oscillator is off. 
+       The HSE has priority over the GPIO function.
+  
+  @endverbatim
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
+  *
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************  
+  */ 
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f1xx_hal.h"
+
+/** @addtogroup STM32F1xx_HAL_Driver
+  * @{
+  */
+
+/** @defgroup GPIO GPIO
+  * @brief GPIO HAL module driver
+  * @{
+  */
+
+#ifdef HAL_GPIO_MODULE_ENABLED
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/** @defgroup GPIO_Private_Constants GPIO Private Constants
+  * @{
+  */
+  
+#define GPIO_MODE             ((uint32_t)0x00000003)
+#define EXTI_MODE             ((uint32_t)0x10000000)
+#define GPIO_MODE_IT          ((uint32_t)0x00010000)
+#define GPIO_MODE_EVT         ((uint32_t)0x00020000)
+#define RISING_EDGE           ((uint32_t)0x00100000) 
+#define FALLING_EDGE          ((uint32_t)0x00200000) 
+#define GPIO_OUTPUT_TYPE      ((uint32_t)0x00000010) 
+#define GPIO_NUMBER           ((uint32_t)16)
+
+/* Definitions for bit manipulation of CRL and CRH register */
+#define  GPIO_CR_MODE_INPUT         ((uint32_t)0x00000000) /*!< 00: Input mode (reset state)  */
+#define  GPIO_CR_CNF_ANALOG         ((uint32_t)0x00000000) /*!< 00: Analog mode  */
+#define  GPIO_CR_CNF_INPUT_FLOATING ((uint32_t)0x00000004) /*!< 01: Floating input (reset state)  */
+#define  GPIO_CR_CNF_INPUT_PU_PD    ((uint32_t)0x00000008) /*!< 10: Input with pull-up / pull-down  */
+#define  GPIO_CR_CNF_GP_OUTPUT_PP   ((uint32_t)0x00000000) /*!< 00: General purpose output push-pull  */
+#define  GPIO_CR_CNF_GP_OUTPUT_OD   ((uint32_t)0x00000004) /*!< 01: General purpose output Open-drain  */
+#define  GPIO_CR_CNF_AF_OUTPUT_PP   ((uint32_t)0x00000008) /*!< 10: Alternate function output Push-pull  */
+#define  GPIO_CR_CNF_AF_OUTPUT_OD   ((uint32_t)0x0000000C) /*!< 11: Alternate function output Open-drain  */
+ 
+/**
+  * @}
+  */
+
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/* Private functions ---------------------------------------------------------*/
+
+/** @defgroup GPIO_Exported_Functions GPIO Exported Functions
+  * @{
+  */
+
+/** @defgroup GPIO_Exported_Functions_Group1 Initialization and deinitialization functions
+ *  @brief    Initialization and Configuration functions
+ *
+@verbatim    
+ ===============================================================================
+              ##### Initialization and deinitialization functions #####
+ ===============================================================================
+  [..]
+    This section provides functions allowing to initialize and de-initialize the GPIOs
+    to be ready for use.
+ 
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief  Initializes the GPIOx peripheral according to the specified parameters in the GPIO_Init.
+  * @param  GPIOx: where x can be (A..G depending on device used) to select the GPIO peripheral
+  * @param  GPIO_Init: pointer to a GPIO_InitTypeDef structure that contains
+  *         the configuration information for the specified GPIO peripheral.
+  * @retval None
+  */
+void HAL_GPIO_Init(GPIO_TypeDef  *GPIOx, GPIO_InitTypeDef *GPIO_Init)
+{
+  uint32_t position;
+  uint32_t ioposition = 0x00;
+  uint32_t iocurrent = 0x00;
+  uint32_t temp = 0x00;
+  uint32_t config = 0x00;
+  __IO uint32_t *configregister; /* Store the address of CRL or CRH register based on pin number */
+  uint32_t registeroffset = 0; /* offset used during computation of CNF and MODE bits placement inside CRL or CRH register */
+  
+  /* Check the parameters */
+  assert_param(IS_GPIO_ALL_INSTANCE(GPIOx));
+  assert_param(IS_GPIO_PIN(GPIO_Init->Pin));
+  assert_param(IS_GPIO_MODE(GPIO_Init->Mode));
+
+  /* Configure the port pins */
+  for (position = 0; position < GPIO_NUMBER; position++)
+  {
+    /* Get the IO position */
+    ioposition = ((uint32_t)0x01) << position;
+    
+    /* Get the current IO position */
+    iocurrent = (uint32_t)(GPIO_Init->Pin) & ioposition;
+
+    if (iocurrent == ioposition)
+    {
+      /* Check the Alternate function parameters */
+      assert_param(IS_GPIO_AF_INSTANCE(GPIOx));
+
+      /* Based on the required mode, filling config variable with MODEy[1:0] and CNFy[3:2] corresponding bits */
+      switch (GPIO_Init->Mode)
+      {
+        /* If we are configuring the pin in OUTPUT push-pull mode */
+        case GPIO_MODE_OUTPUT_PP:
+          /* Check the GPIO speed parameter */
+          assert_param(IS_GPIO_SPEED(GPIO_Init->Speed));
+          config = GPIO_Init->Speed + GPIO_CR_CNF_GP_OUTPUT_PP;
+          break;
+          
+        /* If we are configuring the pin in OUTPUT open-drain mode */
+        case GPIO_MODE_OUTPUT_OD:
+          /* Check the GPIO speed parameter */
+          assert_param(IS_GPIO_SPEED(GPIO_Init->Speed));
+          config = GPIO_Init->Speed + GPIO_CR_CNF_GP_OUTPUT_OD;
+          break;
+          
+        /* If we are configuring the pin in ALTERNATE FUNCTION push-pull mode */
+        case GPIO_MODE_AF_PP:
+          /* Check the GPIO speed parameter */
+          assert_param(IS_GPIO_SPEED(GPIO_Init->Speed));
+          config = GPIO_Init->Speed + GPIO_CR_CNF_AF_OUTPUT_PP;
+          break;
+          
+        /* If we are configuring the pin in ALTERNATE FUNCTION open-drain mode */
+        case GPIO_MODE_AF_OD:
+          /* Check the GPIO speed parameter */
+          assert_param(IS_GPIO_SPEED(GPIO_Init->Speed));
+          config = GPIO_Init->Speed + GPIO_CR_CNF_AF_OUTPUT_OD;
+          break;
+          
+        /* If we are configuring the pin in INPUT (also applicable to EVENT and IT mode) */
+        case GPIO_MODE_INPUT:
+        case GPIO_MODE_IT_RISING:
+        case GPIO_MODE_IT_FALLING:
+        case GPIO_MODE_IT_RISING_FALLING:
+        case GPIO_MODE_EVT_RISING:
+        case GPIO_MODE_EVT_FALLING:
+        case GPIO_MODE_EVT_RISING_FALLING:
+          /* Check the GPIO pull parameter */
+          assert_param(IS_GPIO_PULL(GPIO_Init->Pull));
+          if(GPIO_Init->Pull == GPIO_NOPULL)
+          {  
+            config = GPIO_CR_MODE_INPUT + GPIO_CR_CNF_INPUT_FLOATING;
+          }
+          else if(GPIO_Init->Pull == GPIO_PULLUP)
+          {
+            config = GPIO_CR_MODE_INPUT + GPIO_CR_CNF_INPUT_PU_PD;
+            
+            /* Set the corresponding ODR bit */
+            GPIOx->BSRR = ioposition;
+          }
+          else /* GPIO_PULLDOWN */
+          {
+            config = GPIO_CR_MODE_INPUT + GPIO_CR_CNF_INPUT_PU_PD;
+            
+            /* Reset the corresponding ODR bit */
+            GPIOx->BRR = ioposition;
+          }
+          break; 
+          
+        /* If we are configuring the pin in INPUT analog mode */
+        case GPIO_MODE_ANALOG:
+            config = GPIO_CR_MODE_INPUT + GPIO_CR_CNF_ANALOG;
+          break;
+        
+        /* Parameters are checked with assert_param */
+        default:
+          break;
+      }
+      
+      /* Check if the current bit belongs to first half or last half of the pin count number
+       in order to address CRH or CRL register*/
+      configregister = (iocurrent < GPIO_PIN_8) ? &GPIOx->CRL     : &GPIOx->CRH;
+      registeroffset = (iocurrent < GPIO_PIN_8) ? (position << 2) : ((position - 8) << 2);
+      
+      /* Apply the new configuration of the pin to the register */
+      MODIFY_REG((*configregister), ((GPIO_CRL_MODE0 | GPIO_CRL_CNF0) << registeroffset ), (config << registeroffset));
+      
+      /*--------------------- EXTI Mode Configuration ------------------------*/
+      /* Configure the External Interrupt or event for the current IO */
+      if((GPIO_Init->Mode & EXTI_MODE) == EXTI_MODE) 
+      {
+        /* Enable AFIO Clock */
+        __HAL_RCC_AFIO_CLK_ENABLE();
+        temp = AFIO->EXTICR[position >> 2];
+        CLEAR_BIT(temp, ((uint32_t)0x0F) << (4 * (position & 0x03)));
+        SET_BIT(temp, (GPIO_GET_INDEX(GPIOx)) << (4 * (position & 0x03)));
+        AFIO->EXTICR[position >> 2] = temp;
+        
+
+        /* Configure the interrupt mask */
+        if((GPIO_Init->Mode & GPIO_MODE_IT) == GPIO_MODE_IT)
+        {
+          SET_BIT(EXTI->IMR, iocurrent); 
+        } 
+        else
+        {
+          CLEAR_BIT(EXTI->IMR, iocurrent); 
+        } 
+        
+        /* Configure the event mask */
+        if((GPIO_Init->Mode & GPIO_MODE_EVT) == GPIO_MODE_EVT)
+        {
+          SET_BIT(EXTI->EMR, iocurrent); 
+        } 
+        else
+        {
+          CLEAR_BIT(EXTI->EMR, iocurrent); 
+        }
+        
+        /* Enable or disable the rising trigger */
+        if((GPIO_Init->Mode & RISING_EDGE) == RISING_EDGE)
+        {
+          SET_BIT(EXTI->RTSR, iocurrent); 
+        } 
+        else
+        {
+          CLEAR_BIT(EXTI->RTSR, iocurrent); 
+        }
+        
+        /* Enable or disable the falling trigger */
+        if((GPIO_Init->Mode & FALLING_EDGE) == FALLING_EDGE)
+        {
+          SET_BIT(EXTI->FTSR, iocurrent); 
+        } 
+        else
+        {
+          CLEAR_BIT(EXTI->FTSR, iocurrent); 
+        }
+      }
+    }
+  }
+}
+
+/**
+  * @brief  De-initializes the GPIOx peripheral registers to their default reset values.
+  * @param  GPIOx: where x can be (A..G depending on device used) to select the GPIO peripheral
+  * @param  GPIO_Pin: specifies the port bit to be written.
+  *         This parameter can be one of GPIO_PIN_x where x can be (0..15).
+  * @retval None
+  */
+void HAL_GPIO_DeInit(GPIO_TypeDef  *GPIOx, uint32_t GPIO_Pin)
+{ 
+  uint32_t position = 0x00;
+  uint32_t iocurrent = 0x00;
+  uint32_t tmp = 0x00;
+  __IO uint32_t *configregister; /* Store the address of CRL or CRH register based on pin number */
+  uint32_t registeroffset = 0;
+ 
+  /* Check the parameters */
+  assert_param(IS_GPIO_ALL_INSTANCE(GPIOx));
+  assert_param(IS_GPIO_PIN(GPIO_Pin));
+
+  /* Configure the port pins */
+  while ((GPIO_Pin >> position) != 0)
+  {
+    /* Get current io position */
+    iocurrent = (GPIO_Pin) & ((uint32_t)1 << position);
+
+    if (iocurrent)
+    {
+      /*------------------------- GPIO Mode Configuration --------------------*/
+      /* Check if the current bit belongs to first half or last half of the pin count number
+       in order to address CRH or CRL register */
+      configregister = (iocurrent < GPIO_PIN_8) ? &GPIOx->CRL     : &GPIOx->CRH;
+      registeroffset = (iocurrent < GPIO_PIN_8) ? (position << 2) : ((position - 8) << 2);
+      
+      /* CRL/CRH default value is floating input(0x04) shifted to correct position */
+      MODIFY_REG(*configregister, ((GPIO_CRL_MODE0 | GPIO_CRL_CNF0) << registeroffset ), GPIO_CRL_CNF0_0 << registeroffset);
+      
+      /* ODR default value is 0 */
+      CLEAR_BIT(GPIOx->ODR, iocurrent);
+      
+      /*------------------------- EXTI Mode Configuration --------------------*/
+      /* Clear the External Interrupt or Event for the current IO */
+      
+      tmp = AFIO->EXTICR[position >> 2];
+      tmp &= (((uint32_t)0x0F) << (4 * (position & 0x03)));
+      if(tmp == (GPIO_GET_INDEX(GPIOx) << (4 * (position & 0x03))))
+      {
+        tmp = ((uint32_t)0x0F) << (4 * (position & 0x03));
+        CLEAR_BIT(AFIO->EXTICR[position >> 2], tmp);
+          
+        /* Clear EXTI line configuration */
+        CLEAR_BIT(EXTI->IMR, (uint32_t)iocurrent);
+        CLEAR_BIT(EXTI->EMR, (uint32_t)iocurrent);
+        
+        /* Clear Rising Falling edge configuration */
+        CLEAR_BIT(EXTI->RTSR, (uint32_t)iocurrent);
+        CLEAR_BIT(EXTI->FTSR, (uint32_t)iocurrent);
+      }
+    }
+    
+    position++;
+  }
+}
+
+/**
+  * @}
+  */
+
+/** @defgroup GPIO_Exported_Functions_Group2 IO operation functions 
+ *  @brief   GPIO Read and Write 
+ *
+@verbatim   
+ ===============================================================================
+                       ##### IO operation functions #####
+ ===============================================================================
+  [..]
+    This subsection provides a set of functions allowing to manage the GPIOs.
+
+@endverbatim
+  * @{
+  */
+/**
+  * @brief  Reads the specified input port pin.
+  * @param  GPIOx: where x can be (A..G depending on device used) to select the GPIO peripheral
+  * @param  GPIO_Pin: specifies the port bit to read.
+  *         This parameter can be GPIO_PIN_x where x can be (0..15).
+  * @retval The input port pin value.
+  */
+GPIO_PinState HAL_GPIO_ReadPin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
+{
+  GPIO_PinState bitstatus;
+
+  /* Check the parameters */
+  assert_param(IS_GPIO_PIN(GPIO_Pin));
+
+  if ((GPIOx->IDR & GPIO_Pin) != (uint32_t)GPIO_PIN_RESET)
+  {
+    bitstatus = GPIO_PIN_SET;
+  }
+  else
+  {
+    bitstatus = GPIO_PIN_RESET;
+  }
+  return bitstatus;
+}
+
+/**
+  * @brief  Sets or clears the selected data port bit.
+  * 
+  * @note   This function uses GPIOx_BSRR register to allow atomic read/modify 
+  *         accesses. In this way, there is no risk of an IRQ occurring between
+  *         the read and the modify access.
+  *               
+  * @param  GPIOx: where x can be (A..G depending on device used) to select the GPIO peripheral
+  * @param  GPIO_Pin: specifies the port bit to be written.
+  *          This parameter can be one of GPIO_PIN_x where x can be (0..15).
+  * @param  PinState: specifies the value to be written to the selected bit.
+  *          This parameter can be one of the GPIO_PinState enum values:
+  *            @arg GPIO_BIT_RESET: to clear the port pin
+  *            @arg GPIO_BIT_SET: to set the port pin
+  * @retval None
+  */
+void HAL_GPIO_WritePin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin, GPIO_PinState PinState)
+{
+  /* Check the parameters */
+  assert_param(IS_GPIO_PIN(GPIO_Pin));
+  assert_param(IS_GPIO_PIN_ACTION(PinState));
+
+  if(PinState != GPIO_PIN_RESET)
+  {
+    GPIOx->BSRR = GPIO_Pin;
+  }
+  else
+  {
+    GPIOx->BSRR = (uint32_t)GPIO_Pin << 16;
+  }
+}
+
+/**
+  * @brief  Toggles the specified GPIO pin
+  * @param  GPIOx: where x can be (A..G depending on device used) to select the GPIO peripheral 
+  * @param  GPIO_Pin: Specifies the pins to be toggled.
+  * @retval None
+  */
+void HAL_GPIO_TogglePin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
+{
+  /* Check the parameters */
+  assert_param(IS_GPIO_PIN(GPIO_Pin));
+
+  GPIOx->ODR ^= GPIO_Pin;
+}
+
+/**
+* @brief  Locks GPIO Pins configuration registers.
+* @note   The locking mechanism allows the IO configuration to be frozen. When the LOCK sequence
+*         has been applied on a port bit, it is no longer possible to modify the value of the port bit until
+*         the next reset.
+* @param  GPIOx: where x can be (A..G depending on device used) to select the GPIO peripheral
+* @param  GPIO_Pin: specifies the port bit to be locked.
+*         This parameter can be any combination of GPIO_Pin_x where x can be (0..15).
+* @retval None
+*/
+HAL_StatusTypeDef HAL_GPIO_LockPin(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin)
+{
+  __IO uint32_t tmp = GPIO_LCKR_LCKK;
+
+  /* Check the parameters */
+  assert_param(IS_GPIO_LOCK_INSTANCE(GPIOx));
+  assert_param(IS_GPIO_PIN(GPIO_Pin));
+
+  /* Apply lock key write sequence */
+  SET_BIT(tmp, GPIO_Pin);
+  /* Set LCKx bit(s): LCKK='1' + LCK[15-0] */
+  GPIOx->LCKR = tmp;
+  /* Reset LCKx bit(s): LCKK='0' + LCK[15-0] */
+  GPIOx->LCKR = GPIO_Pin;
+  /* Set LCKx bit(s): LCKK='1' + LCK[15-0] */
+  GPIOx->LCKR = tmp;
+  /* Read LCKK bit*/
+  tmp = GPIOx->LCKR;
+
+  if((uint32_t)(GPIOx->LCKR & GPIO_LCKR_LCKK))
+  {
+    return HAL_OK;
+  }
+  else
+  {
+    return HAL_ERROR;
+  }
+}
+
+/**
+  * @brief This function handles EXTI interrupt request.
+  * @param GPIO_Pin: Specifies the pins connected EXTI line
+  * @retval None
+  */
+void HAL_GPIO_EXTI_IRQHandler(uint16_t GPIO_Pin)
+{
+  /* EXTI line interrupt detected */
+  if(__HAL_GPIO_EXTI_GET_IT(GPIO_Pin) != RESET) 
+  { 
+    __HAL_GPIO_EXTI_CLEAR_IT(GPIO_Pin);
+    HAL_GPIO_EXTI_Callback(GPIO_Pin);
+  }
+}
+
+/**
+  * @brief  EXTI line detection callback
+  * @param GPIO_Pin: Specifies the pins connected EXTI line
+  * @retval None
+  */
+__weak void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(GPIO_Pin);
+  /* NOTE : This function Should not be modified, when the callback is needed,
+            the HAL_GPIO_EXTI_Callback could be implemented in the user file
+   */ 
+}
+
+/**
+  * @}
+  */
+
+
+/**
+  * @}
+  */
+
+#endif /* HAL_GPIO_MODULE_ENABLED */
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/