fsfw-example-stm32h7-rtems/bsp_stm32h7_rtems/boardconfig/NUCLEO-H743ZI/Src/stm32h7xx_nucleo.c

/**
 ******************************************************************************
 * @file    stm32h7xx_nucleo.c
 * @author  MCD Application Team
 * @brief   This file provides set of firmware functions to manage:
 *          - LEDs and push-button available on STM32H7xx-Nucleo Kit
 *            from STMicroelectronics
 ******************************************************************************
 * @attention
 *
 * <h2><center>&copy; Copyright (c) 2018 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
 *
 ******************************************************************************
 */

/* Includes ------------------------------------------------------------------*/
#include "stm32h7xx_nucleo.h"

/** @addtogroup BSP
 * @{
 */

/** @addtogroup STM32H7XX_NUCLEO
 * @{
 */

/** @addtogroup STM32H7XX_NUCLEO_LOW_LEVEL
 * @brief This file provides set of firmware functions to manage Leds and
 * push-button available on STM32H7xx-Nucleo Kit from STMicroelectronics.
 * @{
 */

/** @defgroup STM32H7XX_NUCLEO_LOW_LEVEL_Private_Defines LOW LEVEL Private
 * Defines
 * @{
 */

/**
 * @}
 */

/** @defgroup STM32H7XX_NUCLEO_LOW_LEVEL_Private_TypesDefinitions LOW LEVEL
 * Private Typedef
 * @{
 */
typedef void (*BSP_EXTI_LineCallback)(void);
/**
 * @}
 */

/** @defgroup STM32H7XX_NUCLEO_LOW_LEVEL_Exported_Variables LOW LEVEL Exported
 * Variables
 * @{
 */
EXTI_HandleTypeDef hpb_exti[BUTTONn];
#if (USE_BSP_COM_FEATURE > 0)
UART_HandleTypeDef hcom_uart[COMn];
USART_TypeDef *COM_USART[COMn] = {COM1_UART};
#endif
/**
 * @}
 */
/** @defgroup STM32H7XX_NUCLEO_LOW_LEVEL_Private_Variables LOW LEVEL Private
 * Variables
 * @{
 */
static GPIO_TypeDef *LED_PORT[LEDn] = {LED1_GPIO_PORT, LED2_GPIO_PORT,
                                       LED3_GPIO_PORT};

static const uint16_t LED_PIN[LEDn] = {LED1_PIN, LED2_PIN, LED3_PIN};

static GPIO_TypeDef *BUTTON_PORT[BUTTONn] = {BUTTON_USER_GPIO_PORT};
static const uint16_t BUTTON_PIN[BUTTONn] = {BUTTON_USER_PIN};
static const IRQn_Type BUTTON_IRQn[BUTTONn] = {BUTTON_USER_EXTI_IRQn};

#if (USE_BSP_COM_FEATURE > 0)
#if (USE_COM_LOG > 0)
static COM_TypeDef COM_ActiveLogPort = COM1;
#endif
#if (USE_HAL_UART_REGISTER_CALLBACKS == 1)
static uint32_t IsComMspCbValid[COMn] = {0};
#endif
#endif

/**
 * @}
 */

/** @defgroup STM32H7XX_NUCLEO_LOW_LEVEL_Private_FunctionPrototypes LOW LEVEL
 * Private functions Prototypes
 * @{
 */
static void BUTTON_USER_EXTI_Callback(void);
#if (USE_BSP_COM_FEATURE > 0)
static void COM1_MspInit(UART_HandleTypeDef *huart);
static void COM1_MspDeInit(UART_HandleTypeDef *huart);
#endif
/**
 * @}
 */

/** @defgroup STM32H7XX_NUCLEO_LOW_LEVEL_Exported_Functions LOW LEVEL Exported
 * Functions
 * @{
 */

/**
 * @brief  This method returns the STM32H7XX NUCLEO BSP Driver revision
 * @retval version: 0xXYZR (8bits for each decimal, R for RC)
 */
int32_t BSP_GetVersion(void) { return (int32_t)STM32H7XX_NUCLEO_BSP_VERSION; }

/**
 * @brief  Configures LED GPIO.
 * @param  Led Specifies the Led to be configured.
 *   This parameter can be one of following parameters:
 *     @arg  LED1
 *     @arg  LED2
 *     @arg  LED3
 * @retval BSP status
 */
int32_t BSP_LED_Init(Led_TypeDef Led) {
  int32_t ret = BSP_ERROR_NONE;
  GPIO_InitTypeDef gpio_init_structure;

  if ((Led != LED1) && (Led != LED2) && (Led != LED3)) {
    ret = BSP_ERROR_WRONG_PARAM;
  } else {
    /* Enable the GPIO LED Clock */
    if (Led == LED1) {
      LED1_GPIO_CLK_ENABLE();
    } else if (Led == LED2) {
      LED2_GPIO_CLK_ENABLE();
    } else {
      LED3_GPIO_CLK_ENABLE();
    }
    /* Configure the GPIO_LED pin */
    gpio_init_structure.Pin = LED_PIN[Led];
    gpio_init_structure.Mode = GPIO_MODE_OUTPUT_PP;
    gpio_init_structure.Pull = GPIO_NOPULL;
    gpio_init_structure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;

    HAL_GPIO_Init(LED_PORT[Led], &gpio_init_structure);
    HAL_GPIO_WritePin(LED_PORT[Led], LED_PIN[Led], GPIO_PIN_RESET);
  }

  return ret;
}

/**
 * @brief  DeInit LEDs.
 * @param  Led LED to be de-init.
 *   This parameter can be one of the following values:
 *     @arg  LED1
 *     @arg  LED2
 *     @arg  LED3
 * @note Led DeInit does not disable the GPIO clock nor disable the Mfx
 * @retval BSP status
 */
int32_t BSP_LED_DeInit(Led_TypeDef Led) {
  int32_t ret = BSP_ERROR_NONE;
  GPIO_InitTypeDef gpio_init_structure;

  if ((Led != LED1) && (Led != LED2) && (Led != LED3)) {
    ret = BSP_ERROR_WRONG_PARAM;
  } else {
    /* Turn off LED */
    HAL_GPIO_WritePin(LED_PORT[Led], LED_PIN[Led], GPIO_PIN_RESET);
    /* DeInit the GPIO_LED pin */
    gpio_init_structure.Pin = LED_PIN[Led];
    HAL_GPIO_DeInit(LED_PORT[Led], gpio_init_structure.Pin);
  }

  return ret;
}

/**
 * @brief  Turns selected LED On.
 * @param  Led Specifies the Led to be set on.
 *   This parameter can be one of following parameters:
 *     @arg  LED1
 *     @arg  LED2
 *     @arg  LED3
 * @retval BSP status
 */
int32_t BSP_LED_On(Led_TypeDef Led) {
  int32_t ret = BSP_ERROR_NONE;

  if ((Led != LED1) && (Led != LED2) && (Led != LED3)) {
    ret = BSP_ERROR_WRONG_PARAM;
  } else {
    HAL_GPIO_WritePin(LED_PORT[Led], LED_PIN[Led], GPIO_PIN_SET);
  }

  return ret;
}

/**
 * @brief  Turns selected LED Off.
 * @param  Led: Specifies the Led to be set off.
 *   This parameter can be one of following parameters:
 *     @arg  LED1
 *     @arg  LED2
 *     @arg  LED3
 * @retval BSP status
 */
int32_t BSP_LED_Off(Led_TypeDef Led) {
  int32_t ret = BSP_ERROR_NONE;

  if ((Led != LED1) && (Led != LED2) && (Led != LED3)) {
    ret = BSP_ERROR_WRONG_PARAM;
  } else {
    HAL_GPIO_WritePin(LED_PORT[Led], LED_PIN[Led], GPIO_PIN_RESET);
  }

  return ret;
}

/**
 * @brief  Toggles the selected LED.
 * @param  Led Specifies the Led to be toggled.
 *   This parameter can be one of following parameters:
 *     @arg  LED1
 *     @arg  LED2
 *     @arg  LED3
 * @retval BSP status
 */
int32_t BSP_LED_Toggle(Led_TypeDef Led) {
  int32_t ret = BSP_ERROR_NONE;

  if ((Led != LED1) && (Led != LED2) && (Led != LED3)) {
    ret = BSP_ERROR_WRONG_PARAM;
  } else {
    HAL_GPIO_TogglePin(LED_PORT[Led], LED_PIN[Led]);
  }

  return ret;
}

/**
 * @brief  Get the state of the selected LED.
 * @param  Led LED to get its state
 *   This parameter can be one of following parameters:
 *     @arg  LED1
 *     @arg  LED2
 *     @arg  LED3
 * @retval LED status
 */
int32_t BSP_LED_GetState(Led_TypeDef Led) {
  int32_t ret;

  if ((Led != LED1) && (Led != LED2) && (Led != LED3)) {
    ret = BSP_ERROR_WRONG_PARAM;
  } else {
    ret = (int32_t)HAL_GPIO_ReadPin(LED_PORT[Led], LED_PIN[Led]);
  }

  return ret;
}

/**
 * @brief  Configures button GPIO and EXTI Line.
 * @param  Button Button to be configured
 *          This parameter can be one of the following values:
 *            @arg  BUTTON_USER: Wakeup Push Button
 * @param  ButtonMode Button mode
 *          This parameter can be one of the following values:
 *            @arg  BUTTON_MODE_GPIO: Button will be used as simple IO
 *            @arg  BUTTON_MODE_EXTI: Button will be connected to EXTI line
 *                                    with interrupt generation capability
 */
int32_t BSP_PB_Init(Button_TypeDef Button, ButtonMode_TypeDef ButtonMode) {
  GPIO_InitTypeDef gpio_init_structure;
  static BSP_EXTI_LineCallback ButtonCallback[BUTTONn] = {
      BUTTON_USER_EXTI_Callback};
  static uint32_t BSP_BUTTON_PRIO[BUTTONn] = {BSP_BUTTON_USER_IT_PRIORITY};
  static const uint32_t BUTTON_EXTI_LINE[BUTTONn] = {BUTTON_USER_EXTI_LINE};

  /* Enable the BUTTON clock */
  BUTTON_USER_GPIO_CLK_ENABLE();

  gpio_init_structure.Pin = BUTTON_PIN[Button];
  gpio_init_structure.Pull = GPIO_PULLDOWN;
  gpio_init_structure.Speed = GPIO_SPEED_FREQ_HIGH;

  if (ButtonMode == BUTTON_MODE_GPIO) {
    /* Configure Button pin as input */
    gpio_init_structure.Mode = GPIO_MODE_INPUT;
    HAL_GPIO_Init(BUTTON_PORT[Button], &gpio_init_structure);
  } else /* (ButtonMode == BUTTON_MODE_EXTI) */
  {
    /* Configure Button pin as input with External interrupt */
    gpio_init_structure.Mode = GPIO_MODE_IT_RISING;

    HAL_GPIO_Init(BUTTON_PORT[Button], &gpio_init_structure);

    (void)HAL_EXTI_GetHandle(&hpb_exti[Button], BUTTON_EXTI_LINE[Button]);
    (void)HAL_EXTI_RegisterCallback(&hpb_exti[Button], HAL_EXTI_COMMON_CB_ID,
                                    ButtonCallback[Button]);

    /* Enable and set Button EXTI Interrupt to the lowest priority */
    HAL_NVIC_SetPriority((BUTTON_IRQn[Button]), BSP_BUTTON_PRIO[Button], 0x00);
    HAL_NVIC_EnableIRQ((BUTTON_IRQn[Button]));
  }

  return BSP_ERROR_NONE;
}

/**
 * @brief  Push Button DeInit.
 * @param  Button Button to be configured
 *          This parameter can be one of the following values:
 *            @arg  BUTTON_USER: Wakeup Push Button
 * @note PB DeInit does not disable the GPIO clock
 */
int32_t BSP_PB_DeInit(Button_TypeDef Button) {
  GPIO_InitTypeDef gpio_init_structure;

  gpio_init_structure.Pin = BUTTON_PIN[Button];
  HAL_NVIC_DisableIRQ((IRQn_Type)(BUTTON_IRQn[Button]));
  HAL_GPIO_DeInit(BUTTON_PORT[Button], gpio_init_structure.Pin);

  return BSP_ERROR_NONE;
}

/**
 * @brief  Returns the selected button state.
 * @param  Button Button to be checked
 *          This parameter can be one of the following values:
 *            @arg  BUTTON_USER: Wakeup Push Button
 * @retval The Button GPIO pin value (GPIO_PIN_RESET = button pressed)
 */
int32_t BSP_PB_GetState(Button_TypeDef Button) {
  return (int32_t)HAL_GPIO_ReadPin(BUTTON_PORT[Button], BUTTON_PIN[Button]);
}

/**
 * @brief  BSP Button IRQ handler
 * @param  Button Can only be BUTTON_USER
 * @retval None
 */
void BSP_PB_IRQHandler(Button_TypeDef Button) {
  HAL_EXTI_IRQHandler(&hpb_exti[Button]);
}

/**
 * @brief  BSP Push Button callback
 * @param  Button Specifies the pin connected EXTI line
 * @retval None
 */
__weak void BSP_PB_Callback(Button_TypeDef Button) {
  /* Prevent unused argument(s) compilation warning */
  UNUSED(Button);

  /* This function should be implemented by the user application.
     It is called into this driver when an event on Button is triggered. */
}

#if (USE_BSP_COM_FEATURE > 0)
/**
 * @brief  Configures COM port.
 * @param  COM COM port to be configured.
 *          This parameter can be COM1
 * @param  COM_Init Pointer to a UART_HandleTypeDef structure that contains the
 *                  configuration information for the specified USART
 * peripheral.
 * @retval BSP error code
 */
int32_t BSP_COM_Init(COM_TypeDef COM, COM_InitTypeDef *COM_Init) {
  int32_t ret = BSP_ERROR_NONE;

  if (COM >= COMn) {
    ret = BSP_ERROR_WRONG_PARAM;
  } else {
#if (USE_HAL_UART_REGISTER_CALLBACKS == 0)
    /* Init the UART Msp */
    COM1_MspInit(&hcom_uart[COM]);
#else
    if (IsComMspCbValid[COM] == 0U) {
      if (BSP_COM_RegisterDefaultMspCallbacks(COM) != BSP_ERROR_NONE) {
        return BSP_ERROR_MSP_FAILURE;
      }
    }
#endif

    if (MX_USART3_Init(&hcom_uart[COM], COM_Init) != HAL_OK) {
      ret = BSP_ERROR_PERIPH_FAILURE;
    }
  }

  return ret;
}

/**
 * @brief  DeInit COM port.
 * @param  COM COM port to be configured.
 *          This parameter can be COM1
 * @retval BSP status
 */
int32_t BSP_COM_DeInit(COM_TypeDef COM) {
  int32_t ret = BSP_ERROR_NONE;

  if (COM >= COMn) {
    ret = BSP_ERROR_WRONG_PARAM;
  } else {
    /* USART configuration */
    hcom_uart[COM].Instance = COM_USART[COM];

#if (USE_HAL_UART_REGISTER_CALLBACKS == 0)
    COM1_MspDeInit(&hcom_uart[COM]);
#endif /* (USE_HAL_UART_REGISTER_CALLBACKS == 0) */

    if (HAL_UART_DeInit(&hcom_uart[COM]) != HAL_OK) {
      ret = BSP_ERROR_PERIPH_FAILURE;
    }
  }

  return ret;
}

/**
 * @brief  Configures COM port.
 * @param  huart USART handle
 * @param  COM_Init Pointer to a UART_HandleTypeDef structure that contains the
 *                  configuration information for the specified USART
 * peripheral.
 * @retval HAL error code
 */
__weak HAL_StatusTypeDef MX_USART3_Init(UART_HandleTypeDef *huart,
                                        MX_UART_InitTypeDef *COM_Init) {
  /* USART configuration */
  huart->Instance = COM_USART[COM1];
  huart->Init.BaudRate = COM_Init->BaudRate;
  huart->Init.Mode = UART_MODE_TX_RX;
  huart->Init.Parity = (uint32_t)COM_Init->Parity;
  huart->Init.WordLength = (uint32_t)COM_Init->WordLength;
  huart->Init.StopBits = (uint32_t)COM_Init->StopBits;
  huart->Init.HwFlowCtl = (uint32_t)COM_Init->HwFlowCtl;
  huart->Init.OverSampling = UART_OVERSAMPLING_8;

  return HAL_UART_Init(huart);
}

#if (USE_HAL_UART_REGISTER_CALLBACKS == 1)
/**
 * @brief Register Default COM Msp Callbacks
 * @param  COM COM port to be configured.
 *          This parameter can be COM1
 * @retval BSP status
 */
int32_t BSP_COM_RegisterDefaultMspCallbacks(COM_TypeDef COM) {
  int32_t ret = BSP_ERROR_NONE;

  if (COM >= COMn) {
    ret = BSP_ERROR_WRONG_PARAM;
  } else {
    __HAL_UART_RESET_HANDLE_STATE(&hcom_uart[COM]);

    /* Register default MspInit/MspDeInit Callback */
    if (HAL_UART_RegisterCallback(&hcom_uart[COM], HAL_UART_MSPINIT_CB_ID,
                                  COM1_MspInit) != HAL_OK) {
      ret = BSP_ERROR_PERIPH_FAILURE;
    } else if (HAL_UART_RegisterCallback(&hcom_uart[COM],
                                         HAL_UART_MSPDEINIT_CB_ID,
                                         COM1_MspDeInit) != HAL_OK) {
      ret = BSP_ERROR_PERIPH_FAILURE;
    } else {
      IsComMspCbValid[COM] = 1U;
    }
  }

  /* BSP status */
  return ret;
}

/**
 * @brief Register COM Msp Callback registering
 * @param  COM COM port to be configured.
 *          This parameter can be COM1
 * @param Callbacks     pointer to COM1 MspInit/MspDeInit callback functions
 * @retval BSP status
 */
int32_t BSP_COM_RegisterMspCallbacks(COM_TypeDef COM, BSP_COM_Cb_t *Callback) {
  int32_t ret = BSP_ERROR_NONE;

  if (COM >= COMn) {
    ret = BSP_ERROR_WRONG_PARAM;
  } else {
    __HAL_UART_RESET_HANDLE_STATE(&hcom_uart[COM]);

    /* Register MspInit/MspDeInit Callbacks */
    if (HAL_UART_RegisterCallback(&hcom_uart[COM], HAL_UART_MSPINIT_CB_ID,
                                  Callback->pMspInitCb) != HAL_OK) {
      ret = BSP_ERROR_PERIPH_FAILURE;
    } else if (HAL_UART_RegisterCallback(&hcom_uart[COM],
                                         HAL_UART_MSPDEINIT_CB_ID,
                                         Callback->pMspDeInitCb) != HAL_OK) {
      ret = BSP_ERROR_PERIPH_FAILURE;
    } else {
      IsComMspCbValid[COM] = 1U;
    }
  }
  /* BSP status */
  return ret;
}
#endif /* USE_HAL_UART_REGISTER_CALLBACKS */

#if (USE_COM_LOG > 0)
/**
 * @brief  Select the active COM port.
 * @param  COM COM port to be activated.
 *          This parameter can be COM1
 * @retval BSP status
 */
int32_t BSP_COM_SelectLogPort(COM_TypeDef COM) {
  if (COM_ActiveLogPort != COM) {
    COM_ActiveLogPort = COM;
  }
  return BSP_ERROR_NONE;
}

/**
 * @brief  Redirect console output to COM
 */
#ifdef __GNUC__
int __io_putchar(int ch)
#else
int fputc(int ch, FILE *f)
#endif /* __GNUC__ */
{
  HAL_UART_Transmit(&hcom_uart[COM_ActiveLogPort], (uint8_t *)&ch, 1,
                    COM_POLL_TIMEOUT);
  return ch;
}
#endif /* USE_COM_LOG */
#endif /* USE_BSP_COM_FEATURE */

/**
 * @}
 */

/** @defgroup STM32H7XX_NUCLEO_LOW_LEVEL_Private_Functions LOW LEVEL Private
 * functions
 * @{
 */
/**
 * @brief  Key EXTI line detection callbacks.
 * @retval BSP status
 */
static void BUTTON_USER_EXTI_Callback(void) { BSP_PB_Callback(BUTTON_USER); }

#if (USE_BSP_COM_FEATURE > 0)
/**
 * @brief  Initializes UART MSP.
 * @param  huart UART handle
 * @retval BSP status
 */
static void COM1_MspInit(UART_HandleTypeDef *huart) {
  GPIO_InitTypeDef gpio_init_structure;

  /* Prevent unused argument(s) compilation warning */
  UNUSED(huart);

  /* Enable GPIO clock */
  COM1_TX_GPIO_CLK_ENABLE();
  COM1_RX_GPIO_CLK_ENABLE();

  /* Enable USART clock */
  COM1_CLK_ENABLE();

  /* Configure USART Tx as alternate function */
  gpio_init_structure.Pin = COM1_TX_PIN;
  gpio_init_structure.Mode = GPIO_MODE_AF_PP;
  gpio_init_structure.Speed = GPIO_SPEED_FREQ_HIGH;
  gpio_init_structure.Pull = GPIO_PULLUP;
  gpio_init_structure.Alternate = COM1_TX_AF;
  HAL_GPIO_Init(COM1_TX_GPIO_PORT, &gpio_init_structure);

  /* Configure USART Rx as alternate function */
  gpio_init_structure.Pin = COM1_RX_PIN;
  gpio_init_structure.Mode = GPIO_MODE_AF_PP;
  gpio_init_structure.Alternate = COM1_RX_AF;
  HAL_GPIO_Init(COM1_RX_GPIO_PORT, &gpio_init_structure);
}

/**
 * @brief  Initialize USART3 Msp part
 * @param  huart UART handle
 * @retval BSP status
 */
static void COM1_MspDeInit(UART_HandleTypeDef *huart) {
  GPIO_InitTypeDef gpio_init_structure;

  /* Prevent unused argument(s) compilation warning */
  UNUSED(huart);

  /* COM GPIO pin configuration */
  gpio_init_structure.Pin = COM1_TX_PIN;
  HAL_GPIO_DeInit(COM1_TX_GPIO_PORT, gpio_init_structure.Pin);

  gpio_init_structure.Pin = COM1_RX_PIN;
  HAL_GPIO_DeInit(COM1_RX_GPIO_PORT, gpio_init_structure.Pin);

  /* Disable USART clock */
  COM1_CLK_DISABLE();
}
#endif /* USE_BSP_COM_FEATURE */
/**
 * @}
 */

/**
 * @}
 */

/**
 * @}
 */

/**
 * @}
 */

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