/**
 * Copyright (c) 2015 - present LibDriver All rights reserved
 * 
 * The MIT License (MIT)
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE. 
 *
 * @file      gpio.c
 * @brief     gpio source file
 * @version   1.0.0
 * @author    Shifeng Li
 * @date      2022-11-11
 *
 * <h3>history</h3>
 * <table>
 * <tr><th>Date        <th>Version  <th>Author      <th>Description
 * <tr><td>2022/11/11  <td>1.0      <td>Shifeng Li  <td>first upload
 * </table>
 */

#include "gpio.h"

/**
 * @brief  gpio interrupt init
 * @return status code
 *         - 0 success
 * @note   gpio pin is PB0
 */
uint8_t gpio_interrupt_init(void)
{
    GPIO_InitTypeDef GPIO_InitStruct;
    
    /* enable gpio clock */
    __HAL_RCC_GPIOB_CLK_ENABLE();
    
    /* gpio init */
    GPIO_InitStruct.Pin = GPIO_PIN_0;
    GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
    GPIO_InitStruct.Pull = GPIO_PULLUP;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
    
    /* enable nvic */
    HAL_NVIC_SetPriority(EXTI0_IRQn, 3, 0);
    HAL_NVIC_EnableIRQ(EXTI0_IRQn);
    
    return 0;
}

/**
 * @brief  gpio interrupt deinit
 * @return status code
 *         - 0 success
 * @note   none
 */
uint8_t gpio_interrupt_deinit(void)
{
    /* gpio deinit */
    HAL_GPIO_DeInit(GPIOB, GPIO_PIN_0);
    
    /* disable nvic */
    HAL_NVIC_DisableIRQ(EXTI0_IRQn);
    
    return 0;
}
