/**
  ******************************************************************************
  * @file    py32f032_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 ---------------------------------------------------------*/
static DMA_HandleTypeDef HdmaCh1;
static DMA_HandleTypeDef HdmaCh2;

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

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

/**
  * @brief Initialize SPI related MSP
  */
void HAL_SPI_MspInit(SPI_HandleTypeDef *hspi)
{
  GPIO_InitTypeDef  GPIO_InitStruct = {0};
  /* Initialize SPI1 */
  if (hspi->Instance == SPI1)
  {
    __HAL_RCC_GPIOA_CLK_ENABLE();               /* Enable GPIOA  clock */
    __HAL_RCC_SYSCFG_CLK_ENABLE();              /* Enable SYSCFG clock */
    __HAL_RCC_SPI1_CLK_ENABLE();                /* Enable SPI1   clock */
    __HAL_RCC_DMA1_CLK_ENABLE();                /* Enable DMA1   clock */
    
    /**SPI1 GPIO Configuration
      PA4 ------> SPI1_NSS
      PA5 ------> SPI1_SCK
      PA6 ------> SPI1_MISO
      PA7 ------> SPI1_MOSI
    */
    /*SCK*/
    GPIO_InitStruct.Pin       = GPIO_PIN_5;
    if (hspi->Init.CLKPolarity == SPI_POLARITY_LOW)
    {
      GPIO_InitStruct.Pull    = GPIO_PULLDOWN;
    }
    else
    {
      GPIO_InitStruct.Pull    = GPIO_PULLUP;
    }
    GPIO_InitStruct.Mode      = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Speed     = GPIO_SPEED_FREQ_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF0_SPI1;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

    /* SPI NSS*/
    GPIO_InitStruct.Pin       = GPIO_PIN_4;
    GPIO_InitStruct.Mode      = GPIO_MODE_AF_OD;
    GPIO_InitStruct.Pull      = GPIO_PULLUP;
    GPIO_InitStruct.Speed     = GPIO_SPEED_FREQ_VERY_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF0_SPI1;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

    /* GPIO configured as SPI MISO/MOSI*/
    GPIO_InitStruct.Pin       = (GPIO_PIN_6 | GPIO_PIN_7);
    GPIO_InitStruct.Pull      = GPIO_NOPULL;
    GPIO_InitStruct.Mode      = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Speed     = GPIO_SPEED_FREQ_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF0_SPI1;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

    /* DMA_CH1 configuration */
    HdmaCh1.Instance                   = DMA1_Channel1;
    HdmaCh1.Init.Direction             = DMA_MEMORY_TO_PERIPH;
    HdmaCh1.Init.PeriphInc             = DMA_PADDR_FIX;
    HdmaCh1.Init.MemInc                = DMA_MADDR_INC;
    if (hspi->Init.DataSize <= SPI_DATASIZE_8BIT)
    {
      HdmaCh1.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
      HdmaCh1.Init.MemDataAlignment    = DMA_MDATAALIGN_BYTE;
    }
    else
    {
      HdmaCh1.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
      HdmaCh1.Init.MemDataAlignment    = DMA_MDATAALIGN_HALFWORD;
    }
    HdmaCh1.Init.Mode                  = DMA_NORMAL;
    HdmaCh1.Init.Priority              = DMA_PRIORITY_0;
    HdmaCh1.Init.TransMode             = DMA_TRANSFER_SINGLE;
    /* Initialize DMA */
    HAL_DMA_Init(&HdmaCh1);
    /* DMA handle is associated with SPI handle */
    __HAL_LINKDMA(hspi, hdmatx, HdmaCh1);

    /* DMA_CH2 configuration */
    HdmaCh2.Instance                   = DMA1_Channel2;
    HdmaCh2.Init.Direction             = DMA_PERIPH_TO_MEMORY;
    HdmaCh2.Init.PeriphInc             = DMA_PADDR_FIX;
    HdmaCh2.Init.MemInc                = DMA_MADDR_INC;
    if (hspi->Init.DataSize <= SPI_DATASIZE_8BIT)
    {
      HdmaCh2.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
      HdmaCh2.Init.MemDataAlignment    = DMA_MDATAALIGN_BYTE;
    }
    else
    {
      HdmaCh2.Init.PeriphDataAlignment = DMA_PDATAALIGN_HALFWORD;
      HdmaCh2.Init.MemDataAlignment    = DMA_MDATAALIGN_HALFWORD;
    }
    HdmaCh2.Init.Mode                  = DMA_NORMAL;
    HdmaCh2.Init.Priority              = DMA_PRIORITY_1;
    HdmaCh2.Init.TransMode             = DMA_TRANSFER_SINGLE;
    /* Initialize DMA*/
    HAL_DMA_Init(&HdmaCh2);
    /* DMA handle is associated with SPI handle*/
    __HAL_LINKDMA(hspi, hdmarx, HdmaCh2);
    
    /* Set DMA channel map. */
    HAL_DMA_ChannelMap(&HdmaCh1, DMA_CHANNEL_MAP_SPI1_TX); /* SPI1_TX DMA1_CH1 */
    HAL_DMA_ChannelMap(&HdmaCh2, DMA_CHANNEL_MAP_SPI1_RX); /* SPI1_RX DMA1_CH2 */
    
    /* DMA interrupt configuration*/
    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);

    /* Interrupt configuration */
    HAL_NVIC_SetPriority(SPI1_IRQn, 1, 0);
    HAL_NVIC_EnableIRQ(SPI1_IRQn);
  }
}

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