/*!
 * \file      uart_dma_test.c
 *
 * \brief     Target uart test implementation
 *
 * \copyright Revised BSD License, see section \ref LICENSE.
 *
 * \code
 *
 *            _  __ _       ________    _
 *           | |/ /(_)___  / ____/ /_  (_)___
 *           |   // / __ \/ /   / __ \/ / __ \
 *          /   |/ / / / / /___/ / / / / /_/ /
 *         /_/|_/_/_/ /_/\____/_/ /_/_/ .___/
 *                                   /_/
 *           (C) 2022-2025 XinChip
 *
 * \endcode
 *
 * \author     ( XinChip ) Alex-J
 *
 * \author     ( XinChip )
 */

/*-----------------------------------------------------------------------------------
                                       INCLUDE HEADE FILES
 ------------------------------------------------------------------------------------*/
#include "uart_dma.h"
#include "xc60xx_uart.h"

/*------------------------------------------------------------------------------------
                                            Macros
 -------------------------------------------------------------------------------------*/

/*------------------------------------------------------------------------------------
                                         Global Variables
 -------------------------------------------------------------------------------------*/

/*------------------------------------------------------------------------------------
                                            Functions
 -------------------------------------------------------------------------------------*/
/**
 * @brief       uart_dma_demo
 * @details
 * @param       void
 * @retval      void
 */
void uart_dma_demo(void) {
  DEBUG("__UART_DMA_DEMO__\n");

  uint8_t __attribute__((aligned(4))) rxbuff[26];
  UART_TypeDef *uart_handle = XC_UART0;

  UART_InitTypeDef UART_InitStruct = {0};
  GPIO_InitTypeDef GPIO_InitStruct = {0};

  GPIO_InitStruct.Mux = GPIO_Mux0;
  GPIO_InitStruct.Pull = GPIO_PULLUP;
  GPIO_InitStruct.Int = NOT_INT;

  GPIO_InitStruct.Pin = GPIO_3;
  GPIO_InitStruct.Dir = GPIO_DIR_OUTPUT;
  GPIO_InitStruct.FunSel = UART0_TX;
  GPIO_Init(&GPIO_InitStruct);

  GPIO_InitStruct.Pin = GPIO_2;
  GPIO_InitStruct.Dir = GPIO_DIR_INPUT;
  GPIO_InitStruct.FunSel = UART0_RX;
  GPIO_Init(&GPIO_InitStruct);

  UART_InitStruct.Parity = UART_PARITY_DISABLE;
  UART_InitStruct.StopBits = UART_STOP_1_BITS;
  UART_InitStruct.WordLength = UART_UARTx_TCR_CLS_8BITS;
  UART_InitStruct.BaudRate = UART_BAUDRATE_115200;
  UART_InitStruct.HardwareFlowControl = UART_UARTx_MCR_AFCE_DISABLE;

  UART_Init(uart_handle, &UART_InitStruct);

  UART_DMA_IT_Register_TxCallback(uart_handle);
  UART_DMA_IT_Register_RxCallback(uart_handle);

  if (uart_handle == XC_UART0) {
    UART_DMA_IT_Enable(XC_UART0,
                       1 << (DMA_CH_RCV_UART0 + 16) | 1 << DMA_CH_SEND_UART0);
  } else if (uart_handle == XC_UART1) {
    UART_DMA_IT_Enable(XC_UART1,
                       1 << (DMA_CH_RCV_UART1 + 16) | 1 << DMA_CH_SEND_UART1);
  }

  NVIC_EnableIRQ(DMAS_IRQn);

  UARTx_DMA_Receive_Config(uart_handle);

  for (int i = 0; i < 26; i++) {
    uart_txdmabuff[i] = i + 'A';
  }

  while (1) {
    if (UART_DMA_ReceiveData(uart_handle, rxbuff)) {
      UART_DMA_SendData(uart_handle, rxbuff, 1);
    }
  }
}