view Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_gpio.c @ 909:6902bb4b6b2e Evo_2_23

Define state of new GPIO out pins: Some new GPIO pins were initialized but not used. This may cause some random activations e.g. of the red debug LED. To avoid this the output levels are set to inactive levels (e.g. to LED_OFF)
author Ideenmodellierer
date Tue, 15 Oct 2024 19:07:19 +0200
parents c78bcbd5deda
children
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/**
  ******************************************************************************
  * @file    stm32f4xx_ll_gpio.c
  * @author  MCD Application Team
  * @brief   GPIO LL module driver.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT(c) 2017 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.
  *
  ******************************************************************************
  */
#if defined(USE_FULL_LL_DRIVER)

/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx_ll_gpio.h"
#include "stm32f4xx_ll_bus.h"
#ifdef  USE_FULL_ASSERT
#include "stm32_assert.h"
#else
#define assert_param(expr) ((void)0U)
#endif

/** @addtogroup STM32F4xx_LL_Driver
  * @{
  */

#if defined (GPIOA) || defined (GPIOB) || defined (GPIOC) || defined (GPIOD) || defined (GPIOE) || defined (GPIOF) || defined (GPIOG) || defined (GPIOH) || defined (GPIOI) || defined (GPIOJ) || defined (GPIOK)

/** @addtogroup GPIO_LL
  * @{
  */

/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/** @addtogroup GPIO_LL_Private_Macros
  * @{
  */
#define IS_LL_GPIO_PIN(__VALUE__)          (((0x00000000U) < (__VALUE__)) && ((__VALUE__) <= (LL_GPIO_PIN_ALL)))

#define IS_LL_GPIO_MODE(__VALUE__)         (((__VALUE__) == LL_GPIO_MODE_INPUT)     ||\
                                            ((__VALUE__) == LL_GPIO_MODE_OUTPUT)    ||\
                                            ((__VALUE__) == LL_GPIO_MODE_ALTERNATE) ||\
                                            ((__VALUE__) == LL_GPIO_MODE_ANALOG))

#define IS_LL_GPIO_OUTPUT_TYPE(__VALUE__)  (((__VALUE__) == LL_GPIO_OUTPUT_PUSHPULL)  ||\
                                            ((__VALUE__) == LL_GPIO_OUTPUT_OPENDRAIN))

#define IS_LL_GPIO_SPEED(__VALUE__)        (((__VALUE__) == LL_GPIO_SPEED_FREQ_LOW)       ||\
                                            ((__VALUE__) == LL_GPIO_SPEED_FREQ_MEDIUM)    ||\
                                            ((__VALUE__) == LL_GPIO_SPEED_FREQ_HIGH)      ||\
                                            ((__VALUE__) == LL_GPIO_SPEED_FREQ_VERY_HIGH))

#define IS_LL_GPIO_PULL(__VALUE__)         (((__VALUE__) == LL_GPIO_PULL_NO)   ||\
                                            ((__VALUE__) == LL_GPIO_PULL_UP)   ||\
                                            ((__VALUE__) == LL_GPIO_PULL_DOWN))

#define IS_LL_GPIO_ALTERNATE(__VALUE__)    (((__VALUE__) == LL_GPIO_AF_0  )   ||\
                                            ((__VALUE__) == LL_GPIO_AF_1  )   ||\
                                            ((__VALUE__) == LL_GPIO_AF_2  )   ||\
                                            ((__VALUE__) == LL_GPIO_AF_3  )   ||\
                                            ((__VALUE__) == LL_GPIO_AF_4  )   ||\
                                            ((__VALUE__) == LL_GPIO_AF_5  )   ||\
                                            ((__VALUE__) == LL_GPIO_AF_6  )   ||\
                                            ((__VALUE__) == LL_GPIO_AF_7  )   ||\
                                            ((__VALUE__) == LL_GPIO_AF_8  )   ||\
                                            ((__VALUE__) == LL_GPIO_AF_9  )   ||\
                                            ((__VALUE__) == LL_GPIO_AF_10 )   ||\
                                            ((__VALUE__) == LL_GPIO_AF_11 )   ||\
                                            ((__VALUE__) == LL_GPIO_AF_12 )   ||\
                                            ((__VALUE__) == LL_GPIO_AF_13 )   ||\
                                            ((__VALUE__) == LL_GPIO_AF_14 )   ||\
                                            ((__VALUE__) == LL_GPIO_AF_15 ))
/**
  * @}
  */

/* Private function prototypes -----------------------------------------------*/

/* Exported functions --------------------------------------------------------*/
/** @addtogroup GPIO_LL_Exported_Functions
  * @{
  */

/** @addtogroup GPIO_LL_EF_Init
  * @{
  */

/**
  * @brief  De-initialize GPIO registers (Registers restored to their default values).
  * @param  GPIOx GPIO Port
  * @retval An ErrorStatus enumeration value:
  *          - SUCCESS: GPIO registers are de-initialized
  *          - ERROR:   Wrong GPIO Port
  */
ErrorStatus LL_GPIO_DeInit(GPIO_TypeDef *GPIOx)
{
  ErrorStatus status = SUCCESS;

  /* Check the parameters */
  assert_param(IS_GPIO_ALL_INSTANCE(GPIOx));

  /* Force and Release reset on clock of GPIOx Port */
  if (GPIOx == GPIOA)
  {
    LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOA);
    LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOA);
  }
  else if (GPIOx == GPIOB)
  {
    LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOB);
    LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOB);
  }
  else if (GPIOx == GPIOC)
  {
    LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOC);
    LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOC);
  }
#if defined(GPIOD)
  else if (GPIOx == GPIOD)
  {
    LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOD);
    LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOD);
  }
#endif /* GPIOD */
#if defined(GPIOE)
  else if (GPIOx == GPIOE)
  {
    LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOE);
    LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOE);
  }
#endif /* GPIOE */
#if defined(GPIOF)
  else if (GPIOx == GPIOF)
  {
    LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOF);
    LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOF);
  }
#endif /* GPIOF */
#if defined(GPIOG)
  else if (GPIOx == GPIOG)
  {
    LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOG);
    LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOG);
  }
#endif /* GPIOG */
#if defined(GPIOH)
  else if (GPIOx == GPIOH)
  {
    LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOH);
    LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOH);
  }
#endif /* GPIOH */
#if defined(GPIOI)
  else if (GPIOx == GPIOI)
  {
    LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOI);
    LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOI);
  }
#endif /* GPIOI */
#if defined(GPIOJ)
  else if (GPIOx == GPIOJ)
  {
    LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOJ);
    LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOJ);
  }
#endif /* GPIOJ */
#if defined(GPIOK)
  else if (GPIOx == GPIOK)
  {
    LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_GPIOK);
    LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_GPIOK);
  }
#endif /* GPIOK */
  else
  {
    status = ERROR;
  }

  return (status);
}

/**
  * @brief  Initialize GPIO registers according to the specified parameters in GPIO_InitStruct.
  * @param  GPIOx GPIO Port
  * @param  GPIO_InitStruct pointer to a @ref LL_GPIO_InitTypeDef structure
  *         that contains the configuration information for the specified GPIO peripheral.
  * @retval An ErrorStatus enumeration value:
  *          - SUCCESS: GPIO registers are initialized according to GPIO_InitStruct content
  *          - ERROR:   Not applicable
  */
ErrorStatus LL_GPIO_Init(GPIO_TypeDef *GPIOx, LL_GPIO_InitTypeDef *GPIO_InitStruct)
{
  uint32_t pinpos     = 0x00000000U;
  uint32_t currentpin = 0x00000000U;

  /* Check the parameters */
  assert_param(IS_GPIO_ALL_INSTANCE(GPIOx));
  assert_param(IS_LL_GPIO_PIN(GPIO_InitStruct->Pin));
  assert_param(IS_LL_GPIO_MODE(GPIO_InitStruct->Mode));
  assert_param(IS_LL_GPIO_PULL(GPIO_InitStruct->Pull));

  /* ------------------------- Configure the port pins ---------------- */
  /* Initialize  pinpos on first pin set */
  pinpos = POSITION_VAL(GPIO_InitStruct->Pin);

  /* Configure the port pins */
  while (((GPIO_InitStruct->Pin) >> pinpos) != 0x00000000U)
  {
    /* Get current io position */
    currentpin = (GPIO_InitStruct->Pin) & (0x00000001U << pinpos);

    if (currentpin)
    {
      /* Pin Mode configuration */
      LL_GPIO_SetPinMode(GPIOx, currentpin, GPIO_InitStruct->Mode);

      if ((GPIO_InitStruct->Mode == LL_GPIO_MODE_OUTPUT) || (GPIO_InitStruct->Mode == LL_GPIO_MODE_ALTERNATE))
      {
        /* Check Speed mode parameters */
        assert_param(IS_LL_GPIO_SPEED(GPIO_InitStruct->Speed));

        /* Speed mode configuration */
        LL_GPIO_SetPinSpeed(GPIOx, currentpin, GPIO_InitStruct->Speed);
      }

      /* Pull-up Pull down resistor configuration*/
      LL_GPIO_SetPinPull(GPIOx, currentpin, GPIO_InitStruct->Pull);

      if (GPIO_InitStruct->Mode == LL_GPIO_MODE_ALTERNATE)
      {
        /* Check Alternate parameter */
        assert_param(IS_LL_GPIO_ALTERNATE(GPIO_InitStruct->Alternate));

        /* Speed mode configuration */
        if (POSITION_VAL(currentpin) < 0x00000008U)
        {
          LL_GPIO_SetAFPin_0_7(GPIOx, currentpin, GPIO_InitStruct->Alternate);
        }
        else
        {
          LL_GPIO_SetAFPin_8_15(GPIOx, currentpin, GPIO_InitStruct->Alternate);
        }
      }
    }
    pinpos++;
  }

  if ((GPIO_InitStruct->Mode == LL_GPIO_MODE_OUTPUT) || (GPIO_InitStruct->Mode == LL_GPIO_MODE_ALTERNATE))
  {
    /* Check Output mode parameters */
    assert_param(IS_LL_GPIO_OUTPUT_TYPE(GPIO_InitStruct->OutputType));

    /* Output mode configuration*/
    LL_GPIO_SetPinOutputType(GPIOx, GPIO_InitStruct->Pin, GPIO_InitStruct->OutputType);

  }
  return (SUCCESS);
}

/**
  * @brief Set each @ref LL_GPIO_InitTypeDef field to default value.
  * @param GPIO_InitStruct pointer to a @ref LL_GPIO_InitTypeDef structure
  *                          whose fields will be set to default values.
  * @retval None
  */

void LL_GPIO_StructInit(LL_GPIO_InitTypeDef *GPIO_InitStruct)
{
  /* Reset GPIO init structure parameters values */
  GPIO_InitStruct->Pin        = LL_GPIO_PIN_ALL;
  GPIO_InitStruct->Mode       = LL_GPIO_MODE_ANALOG;
  GPIO_InitStruct->Speed      = LL_GPIO_SPEED_FREQ_LOW;
  GPIO_InitStruct->OutputType = LL_GPIO_OUTPUT_PUSHPULL;
  GPIO_InitStruct->Pull       = LL_GPIO_PULL_NO;
  GPIO_InitStruct->Alternate  = LL_GPIO_AF_0;
}

/**
  * @}
  */

/**
  * @}
  */

/**
  * @}
  */

#endif /* defined (GPIOA) || defined (GPIOB) || defined (GPIOC) || defined (GPIOD) || defined (GPIOE) || defined (GPIOF) || defined (GPIOG) || defined (GPIOH) || defined (GPIOI) || defined (GPIOJ) || defined (GPIOK) */

/**
  * @}
  */

#endif /* USE_FULL_LL_DRIVER */

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