/**
  ******************************************************************************
  * @file    py32f410_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 ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* External functions --------------------------------------------------------*/

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

/**
* @brief LPUART MSP Initialization
* This function configures the hardware resources used in this example
* @param hlpuart: LPUART handle pointer
* @retval None
*/
void HAL_LPUART_MspInit(LPUART_HandleTypeDef* hlpuart)
{
  GPIO_InitTypeDef GPIO_InitStruct = {0};

  /* Peripheral clock enable */
  __HAL_RCC_LPUART1_CLK_ENABLE();
  /* DMA controller clock enable */
  __HAL_RCC_DMA1_CLK_ENABLE();

  __HAL_RCC_GPIOC_CLK_ENABLE();
  
  /**LPUART GPIO Configuration
  PC7     ------> LPUART_RX
  PC8     ------> LPUART_TX
  */
  GPIO_InitStruct.Pin = GPIO_PIN_7 | GPIO_PIN_8;
  GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
  GPIO_InitStruct.Pull = GPIO_PULLUP;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
  GPIO_InitStruct.Alternate = GPIO_AF14_LPUART1;
  HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);

  /* LPUART DMA Init */
  /* LPUART_RX Init */
  hdma_lpuart_rx.Instance                 = DMA1_Channel2;
  hdma_lpuart_rx.Init.Direction           = DMA_PERIPH_TO_MEMORY;
  hdma_lpuart_rx.Init.PeriphInc           = DMA_PADDR_FIX;
  hdma_lpuart_rx.Init.MemInc              = DMA_MADDR_INC;
  hdma_lpuart_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
  hdma_lpuart_rx.Init.MemDataAlignment    = DMA_MDATAALIGN_BYTE;
  hdma_lpuart_rx.Init.Mode                = DMA_NORMAL;
  hdma_lpuart_rx.Init.Priority            = DMA_PRIORITY_1;
  hdma_lpuart_rx.Init.TransMode           = DMA_TRANSFER_SINGLE;
  /* DMA initialization */
  if (HAL_DMA_Init(&hdma_lpuart_rx) != HAL_OK)
  {
    APP_ErrorHandler();
  }
  HAL_DMA_ChannelMap(&hdma_lpuart_rx, DMA_CHANNEL_MAP_LPUART_RX);
  __HAL_LINKDMA(hlpuart, hdmarx, hdma_lpuart_rx);

  /* LPUART_TX Init */
  hdma_lpuart_tx.Instance                 = DMA1_Channel1;
  hdma_lpuart_tx.Init.Direction           = DMA_MEMORY_TO_PERIPH;
  hdma_lpuart_tx.Init.PeriphInc           = DMA_PADDR_FIX;
  hdma_lpuart_tx.Init.MemInc              = DMA_MADDR_INC;
  hdma_lpuart_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
  hdma_lpuart_tx.Init.MemDataAlignment    = DMA_MDATAALIGN_BYTE;
  hdma_lpuart_tx.Init.Mode                = DMA_NORMAL;
  hdma_lpuart_tx.Init.Priority            = DMA_PRIORITY_0;
  hdma_lpuart_tx.Init.TransMode           = DMA_TRANSFER_SINGLE;
  /* DMA initialization */
  if (HAL_DMA_Init(&hdma_lpuart_tx) != HAL_OK)
  {
    APP_ErrorHandler();
  }
  HAL_DMA_ChannelMap(&hdma_lpuart_tx, DMA_CHANNEL_MAP_LPUART_TX);
  __HAL_LINKDMA(hlpuart, hdmatx, hdma_lpuart_tx);

  /* NVIC enable */
  HAL_NVIC_SetPriority(DMA1_Channel1_IRQn, 1, 0);
  HAL_NVIC_EnableIRQ(DMA1_Channel1_IRQn);
  HAL_NVIC_SetPriority(DMA1_Channel2_IRQn, 1, 0);
  HAL_NVIC_EnableIRQ(DMA1_Channel2_IRQn);
  
  /* LPUART interrupt Init */
  HAL_NVIC_SetPriority(LPUART_IRQn, 1, 0);
  HAL_NVIC_EnableIRQ(LPUART_IRQn);
}

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