/*!
 * @file        Board_APM32M35XX.c
 *
 * @brief       This file contains firmware functions to manage Leds and key buttons
 *
 * @version     V1.0.0
 *
 * @date        2024-05-30
 *
 * @attention
 *
 *  Copyright (C) 2024 Geehy Semiconductor
 *
 *  You may not use this file except in compliance with the
 *  GEEHY COPYRIGHT NOTICE (GEEHY SOFTWARE PACKAGE LICENSE).
 *
 *  The program is only for reference, which is distributed in the hope
 *  that it will be useful and instructional for customers to develop
 *  their software. Unless required by applicable law or agreed to in
 *  writing, the program is distributed on an "AS IS" BASIS, WITHOUT
 *  ANY WARRANTY OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the GEEHY SOFTWARE PACKAGE LICENSE for the governing permissions
 *  and limitations under the License.
 */

/* Includes */
#include <stdio.h>
#include "Board_APM32M35XX/inc/board_apm32m35xx.h"

/** @addtogroup Boards
  @{
*/

/** @addtogroup Board_APM32M35XX
  @{
*/

/** @defgroup APM32M35XX_Variables Variables
  @{
  */

GPIO_T* GPIO_PORT[LEDn] = {LED2_GPIO_PORT, LED3_GPIO_PORT};
const GPIO_PIN_T GPIO_PIN[LEDn] = {LED2_PIN, LED3_PIN};
const RCM_AHB_PERIPH_T GPIO_CLK[LEDn] = {LED2_GPIO_CLK, LED3_GPIO_CLK};

GPIO_T* BUTTON_PORT[BUTTONn] = {KEY1_BUTTON_GPIO_PORT, KEY2_BUTTON_GPIO_PORT};
const GPIO_PIN_T BUTTON_PIN[BUTTONn] = {KEY1_BUTTON_PIN, KEY2_BUTTON_PIN};
const RCM_AHB_PERIPH_T BUTTON_CLK[BUTTONn] = {KEY1_BUTTON_GPIO_CLK, KEY2_BUTTON_GPIO_CLK};

USART_T* COM_USART[COMn] = {MINI_COM1, MINI_COM2};
GPIO_T* COM_TX_PORT[COMn] = {MINI_COM1_TX_GPIO_PORT, MINI_COM2_TX_GPIO_PORT};
GPIO_T* COM_RX_PORT[COMn] = {MINI_COM1_RX_GPIO_PORT, MINI_COM2_RX_GPIO_PORT};
const uint32_t COM_USART_CLK[COMn] = {MINI_COM1_CLK, MINI_COM2_CLK};

const RCM_AHB_PERIPH_T COM_TX_PORT_CLK[COMn] = {MINI_COM1_TX_GPIO_CLK, MINI_COM2_TX_GPIO_CLK};

const RCM_AHB_PERIPH_T COM_RX_PORT_CLK[COMn] = {MINI_COM1_RX_GPIO_CLK, MINI_COM2_RX_GPIO_CLK};

const GPIO_PIN_T COM_TX_PIN[COMn] = {MINI_COM1_TX_PIN, MINI_COM2_TX_PIN};

const GPIO_PIN_T COM_RX_PIN[COMn] = {MINI_COM1_RX_PIN, MINI_COM2_RX_PIN};

const GPIO_PIN_SOURCE_T COM_TX_PIN_SOURCE[COMn] = {MINI_COM1_TX_SOURCE, MINI_COM2_TX_SOURCE};

const GPIO_PIN_SOURCE_T COM_RX_PIN_SOURCE[COMn] = {MINI_COM1_RX_SOURCE, MINI_COM2_RX_SOURCE};

const GPIO_AF_T COM_TX_AF[COMn] = {MINI_COM1_TX_AF, MINI_COM2_TX_AF};

const GPIO_AF_T COM_RX_AF[COMn] = {MINI_COM1_RX_AF, MINI_COM2_RX_AF};

/**@} end of group APM32M35XX_Variables */

/** @defgroup APM32M35XX_Functions Functions
  @{
  */

/*!
 * @brief       Configures LED GPIO.
 *
 * @param       Led: Specifies the Led to be configured.
 *              This parameter can be one of following parameters:
 *              @arg LED2
 *              @arg LED3
 *
 * @retval      None
 *
 * @note
 */
void APM_MINI_LEDInit(LED_T Led)
{
    GPIO_Config_T  gpioConfig;

    /* Enable the GPIO_LED Clock */
    RCM_EnableAHBPeriphClock(GPIO_CLK[Led]);

    /* Configure the GPIO_LED pin */
    gpioConfig.pin = GPIO_PIN[Led];
    gpioConfig.mode = GPIO_MODE_OUT;
    gpioConfig.outtype = GPIO_OUT_TYPE_PP;
    gpioConfig.speed = GPIO_SPEED_50MHz;
    gpioConfig.pupd = GPIO_PUPD_NO;

    GPIO_Config(GPIO_PORT[Led], &gpioConfig);

    GPIO_PORT[Led]->BSC = GPIO_PIN[Led];
}

/*!
 * @brief       Turns selected LED On.
 *
 * @param       Led: Specifies the Led to be configured.
 *              This parameter can be one of following parameters:
 *              @arg LED2
 *              @arg LED3
 *
 * @retval      None
 *
 * @note
 */
void APM_MINI_LEDOn(LED_T Led)
{
    GPIO_PORT[Led]->BR = GPIO_PIN[Led];
}

/*!
 * @brief       Turns selected LED Off.
 *
 * @param       Led: Specifies the Led to be configured.
 *              This parameter can be one of following parameters:
 *              @arg LED2
 *              @arg LED3
 *
 * @retval      None
 *
 * @note
 */
void APM_MINI_LEDOff(LED_T Led)
{
    GPIO_PORT[Led]->BSC = GPIO_PIN[Led];
}

/*!
 * @brief       Toggles the selected LED.
 *
 * @param       Led: Specifies the Led to be configured.
 *              This parameter can be one of following parameters:
 *              @arg LED2
 *              @arg LED3
 *
 * @retval      None
 *
 * @note
 */
void APM_MINI_LEDToggle(LED_T Led)
{
    GPIO_PORT[Led]->ODATA ^= GPIO_PIN[Led];
}

/*!
 * @brief       Configures Button GPIO and EINT Line.
 *
 * @param       Button: Specifies the Button to be configured.
 *              This parameter can be one of following parameters:
 *              @arg BUTTON_KEY1: Key1 Push Button
 *              @arg BUTTON_KEY2: Key2 Push Button
 * @param       Button_Mode: Specifies Button mode.
 *              This parameter can be one of following parameters:
 *              @arg BUTTON_MODE_GPIO: Button will be used as simple IO
 *              @arg BUTTON_MODE_EINT: Button will be connected to EINT line
 *                   with interrupt generation capability
 *
 * @retval      None
 *
 * @note
 */
void APM_MINI_PBInit(BUTTON_T Button, BUTTONMODE_T Button_Mode)
{
    GPIO_Config_T gpioConfig;
    EINT_Config_T eintConfig;
    /* Enable the BUTTON Clock */
    RCM_EnableAHBPeriphClock(BUTTON_CLK[Button]);
    RCM_EnableAPB2PeriphClock(RCM_APB2_PERIPH_SYSCFG);

    /* Configure Button pin as input floating */
    gpioConfig.mode = GPIO_MODE_IN;
    gpioConfig.pupd = GPIO_PUPD_PU;
    gpioConfig.pin = BUTTON_PIN[Button];
    GPIO_Config(BUTTON_PORT[Button], &gpioConfig);

    if (Button_Mode == BUTTON_MODE_EINT)
    {
        /* Configure EINT1 line */
        if (Button == BUTTON_KEY1)
        {
            eintConfig.line    =  EINT_LINE0;
            eintConfig.lineCmd =  ENABLE;
            eintConfig.mode    =  EINT_MODE_INTERRUPT;
            eintConfig.trigger =  EINT_TRIGGER_FALLING;
            EINT_Config(&eintConfig);
        }

        /* Configure EINT0 line */
        else if (Button == BUTTON_KEY2)
        {
            eintConfig.line    =  EINT_LINE1;
            eintConfig.lineCmd =  ENABLE;
            eintConfig.mode    =  EINT_MODE_INTERRUPT;
            eintConfig.trigger =  EINT_TRIGGER_FALLING;
            EINT_Config(&eintConfig);
        }

        /* Enable and set EINTx Interrupt to the lowest priority */
        NVIC_EnableIRQRequest(EINT0_1_IRQn, 0x0F);
    }
}

/*!
 * @brief       Returns the selected Button state.
 *
 * @param       Button: Specifies the Button to be configured.
 *              This parameter can be one of following parameters:
 *              @arg BUTTON_KEY1: Key1 Push Button
 *              @arg BUTTON_KEY2: Key2 Push Button
 *
 * @retval      The Button GPIO pin value.
 *
 * @note
 */
uint32_t APM_MINI_PBGetState(BUTTON_T Button)
{
    return GPIO_ReadInputBit(BUTTON_PORT[Button], BUTTON_PIN[Button]);
}

/*!
 * @brief       The interrupt will happen when the button is press ,
 *              and the Led will be on
 * @param
 *
 * @retval
 *
 * @note
 */
void APM_MINI_PB_Led_Isr()
{

    if (EINT_ReadStatusFlag(EINT_LINE1) == SET)
    {
        APM_MINI_LEDToggle(LED2);
        EINT_ClearStatusFlag(EINT_LINE1);
    }

    if (EINT_ReadStatusFlag(EINT_LINE0) == SET)
    {
        APM_MINI_LEDToggle(LED3);
        EINT_ClearStatusFlag(EINT_LINE0);
    }
}

/*!
 * @brief       Configures COM port.
 *
 * @param       COM: Specifies the COM port to be configured.
 *              This parameter can be one of following parameters:
 *              @arg COM1
 *              @arg COM2
 *
 * @retval      None
 *
 * @note
 */
void APM_MINI_COMInit(COM_T COM)
{
    GPIO_Config_T gpioConfig;
    USART_Config_T usartConfigStruct;
    /* Enable GPIO clock */
    RCM_EnableAHBPeriphClock(COM_TX_PORT_CLK[COM] | COM_RX_PORT_CLK[COM]);

    /* Enable COM1 or COM2 clock */
    if (COM == COM1)
    {
        RCM_EnableAPB2PeriphClock(COM_USART_CLK[COM]);
    }
    else
    {
        RCM_EnableAPB1PeriphClock(COM_USART_CLK[COM]);
    }

    /* Connect PXx to USARTx_Tx */
    GPIO_ConfigPinAF(COM_TX_PORT[COM], COM_TX_PIN_SOURCE[COM], COM_TX_AF[COM]);

    /* Connect PXx to USARTx_Rx */
    GPIO_ConfigPinAF(COM_RX_PORT[COM], COM_RX_PIN_SOURCE[COM], COM_RX_AF[COM]);

    /* Configure USART Tx as alternate function push-pull */
    gpioConfig.mode = GPIO_MODE_AF;
    gpioConfig.pin = COM_TX_PIN[COM];
    gpioConfig.speed = GPIO_SPEED_50MHz;
    gpioConfig.outtype = GPIO_OUT_TYPE_PP;
    gpioConfig.pupd = GPIO_PUPD_PU;
    GPIO_Config(COM_TX_PORT[COM], &gpioConfig);

    /* Configure USART Rx as input floating */
    gpioConfig.pin = COM_RX_PIN[COM];
    GPIO_Config(COM_RX_PORT[COM], &gpioConfig);

    /* MINI_USARTs configured as follow:
    - BaudRate = 115200 baud
    - Word Length = 8 Bits
    - One Stop Bit
    - No parity
    - Hardware flow control disabled (RTS and CTS signals)
    - Receive and transmit enabled
    */

    usartConfigStruct.baudRate = 115200;
    usartConfigStruct.mode     = USART_MODE_TX_RX;
    usartConfigStruct.hardwareFlowCtrl = USART_FLOW_CTRL_NONE;
    usartConfigStruct.parity   = USART_PARITY_NONE;
    usartConfigStruct.stopBits =  USART_STOP_BIT_1;
    usartConfigStruct.wordLength = USART_WORD_LEN_8B;
    USART_Config(COM_USART[COM], &usartConfigStruct);

    /* Enable USART_Interrupt_RXBNEIE */
    USART_EnableInterrupt(COM_USART[COM], USART_INT_RXBNEIE);

    if (COM_USART[COM] == USART1)
    {
        NVIC_EnableIRQRequest(USART1_IRQn, 2);
    }
    else if (COM_USART[COM] == USART2)
    {
        NVIC_EnableIRQRequest(USART2_IRQn, 3);
    }

    /* Enable USART */
    USART_Enable(COM_USART[COM]);
}

/**@} end of group APM32M35XX_Functions */
/**@} end of group Board_APM32M35XX */
/**@} end of group Boards */
