/**
  ******************************************************************************
  * @file    py32f092_hal_msp.c
  * @author  MCU Application Team
  * @brief   This file provides code for the MSP Initialization
  *          and de-Initialization codes.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2023 Puya Semiconductor Co.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by Puya 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
  *
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2016 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 "main.h"

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
#ifdef RTC_CLOCK_SOURCE_LSE
static uint32_t RtcClockSource = RCC_RTCCLKSOURCE_LSE;
#elif defined (RTC_CLOCK_SOURCE_LSI)
static uint32_t RtcClockSource = RCC_RTCCLKSOURCE_LSI;
#endif

/* Private function prototypes -----------------------------------------------*/
/* External functions --------------------------------------------------------*/

/**
  * @brief Initialize global MSP.
  */
void HAL_MspInit(void)
{
  __HAL_RCC_SYSCFG_CLK_ENABLE();
  __HAL_RCC_PWR_CLK_ENABLE();
}

/**
* @brief RTC MSP Initialization
* This function configures the hardware resources used in this example
* @param hrtc: RTC handle pointer
* @retval None
*/
void HAL_RTC_MspInit(RTC_HandleTypeDef* hrtc)
{
  if(hrtc->Instance==RTC)
  {
    RCC_OscInitTypeDef        RCC_OscInitStruct = {0};
    RCC_PeriphCLKInitTypeDef  PeriphClkInitStruct = {0};

    /* Enables the PWR Clock and Enables access to the backup domain */
    /* To enable access on RTC registers */
    __HAL_RCC_PWR_CLK_ENABLE();
    HAL_PWR_EnableBkUpAccess();

    /* Get RTC clock configuration */
    HAL_RCCEx_GetPeriphCLKConfig(&PeriphClkInitStruct);

    /*In case of RTC clock already enable, make sure it's the good one */
    if (PeriphClkInitStruct.RTCClockSelection == RtcClockSource)
    {
      /* Do nothing */
    }
    else
    {
      PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_RTC;

      /* If selected source was previously the opposite source clock, first select none*/
      if (PeriphClkInitStruct.RTCClockSelection != RCC_RTCCLKSOURCE_NONE)
      {
        PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_NONE;
        if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
        {
          APP_ErrorHandler();
        }
      }

      /* Configure LSE/LSI as RTC clock source */
#ifdef RTC_CLOCK_SOURCE_LSE
      RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSI | RCC_OSCILLATORTYPE_LSE;
      RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
      RCC_OscInitStruct.LSEState = RCC_LSE_ON;
      RCC_OscInitStruct.LSEDriver = RCC_LSEDRIVE_MEDIUM;
      RCC_OscInitStruct.LSIState = RCC_LSI_OFF;
#elif defined (RTC_CLOCK_SOURCE_LSI)
      RCC_OscInitStruct.OscillatorType =  RCC_OSCILLATORTYPE_LSI | RCC_OSCILLATORTYPE_LSE;
      RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
      RCC_OscInitStruct.LSIState = RCC_LSI_ON;
      RCC_OscInitStruct.LSEState = RCC_LSE_OFF;
#else
#error Please select the RTC Clock source inside the main.h file
#endif /*RTC_CLOCK_SOURCE_LSE*/

      if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
      {
        APP_ErrorHandler();
      }

      PeriphClkInitStruct.RTCClockSelection = RtcClockSource;
      if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
      {
        APP_ErrorHandler();
      }
    }

    /* Peripheral clock enable */
    __HAL_RCC_RTC_ENABLE();
  }

}

/**
* @brief RTC MSP De-Initialization
* This function freeze the hardware resources used in this example
* @param hrtc: RTC handle pointer
* @retval None
*/
void HAL_RTC_MspDeInit(RTC_HandleTypeDef* hrtc)
{
  if(hrtc->Instance==RTC)
  {
  /* USER CODE BEGIN RTC_MspDeInit 0 */

  /* USER CODE END RTC_MspDeInit 0 */
    /* Peripheral clock disable */
    __HAL_RCC_RTC_DISABLE();

  /* USER CODE BEGIN RTC_MspDeInit 1 */

  /* USER CODE END RTC_MspDeInit 1 */
  }

}
/************************ (C) COPYRIGHT Puya *****END OF FILE******************/
