/*!
 * \file      uart.c
 *
 * \brief     Target uart 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.h"
#include "xc6xxx_hal_uart.h"

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

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

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

    uint8_t rxbuff[26];
    UART_TypeDef *uart_handle = XC_UART2; // XC_UART0;//XC_UART1;//XC_UART2;

    if (uart_handle == XC_UART1) {
        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           = UART1_TX;
        GPIO_Init(&GPIO_InitStruct);

        GPIO_InitStruct.Pin    = GPIO_2;
        GPIO_InitStruct.Dir    = GPIO_DIR_INPUT;
        GPIO_InitStruct.FunSel = UART1_RX;
        GPIO_Init(&GPIO_InitStruct);

        UART_InitTypeDef UART_InitStruct    = {0};

        UART_InitStruct.Parity              = UART_PARITY_DISABLE;
        UART_InitStruct.StopBits            = UART_STOP_1_BITS;
        UART_InitStruct.WordLength          = UART_DATA_8_BITS;
        UART_InitStruct.BaudRate            = UART_BAUDRATE_115200;
        UART_InitStruct.HardwareFlowControl = UART_HWFC_DISABLE;

        UART_Init(uart_handle, &UART_InitStruct);
    } else if (uart_handle == XC_UART2) {
        GPIO_InitTypeDef GPIO_InitStruct = {0};

        GPIO_InitStruct.Mux              = GPIO_Mux1;
        GPIO_InitStruct.Pull             = GPIO_PULLUP;
        GPIO_InitStruct.Int              = NOT_INT;
        GPIO_InitStruct.FunSel           = GPIO_Dx;

        GPIO_InitStruct.Pin              = GPIO_32; // uart2 tx
        GPIO_InitStruct.Dir              = GPIO_DIR_OUTPUT;

        GPIO_Init(&GPIO_InitStruct);

        GPIO_InitStruct.Pin = GPIO_31; // uart2 rx
        GPIO_InitStruct.Dir = GPIO_DIR_INPUT;
        GPIO_Init(&GPIO_InitStruct);

        UART_InitTypeDef UART_InitStruct    = {0};

        UART_InitStruct.Parity              = UART_PARITY_DISABLE;
        UART_InitStruct.StopBits            = UART_STOP_1_BITS;
        UART_InitStruct.WordLength          = UART_DATA_8_BITS;
        UART_InitStruct.BaudRate            = UART_BAUDRATE_115200;
        UART_InitStruct.HardwareFlowControl = UART_HWFC_DISABLE;

        UART_Init(uart_handle, &UART_InitStruct);
    }

    UART_Enable_RxIT(uart_handle);

    if (uart_handle == XC_UART0) {
        NVIC_EnableIRQ(UART0_IRQn);
    } else if (uart_handle == XC_UART1) {
        NVIC_EnableIRQ(UART1_IRQn);
    } else if (uart_handle == XC_UART2) {
        NVIC_EnableIRQ(UART2_IRQn);
    }

    for (int i = 0; i < 26; i++) {
        rxbuff[i] = i + 'A';
    }
    UART_SendData(uart_handle, rxbuff, 26);

    uint16_t data_len = 0;

    while (1) {
        data_len = UART_ReceiveData(uart_handle, rxbuff);
        if (data_len) {
            UART_SendData(uart_handle, rxbuff, data_len);
            data_len = 0;
        }
    }
}