/**
 * @file shell_port.c
 * @author Letter (NevermindZZT@gmail.com)
 * @brief 
 * @version 0.1
 * @date 2019-02-22
 * 
 * @copyright (c) 2019 Letter
 * 
 */

#include "shell.h"


// #include <stdio.h>
// #include <dirent.h>
// #include <unistd.h>
// #include <stddef.h>
// #include <string.h>
#include <sys/time.h>
#include <string.h>
#include <stdio.h>
// #include <pthread.h>

Shell shell;
char shellBuffer[512];


/**
 * @brief 获取系统tick
 * 
 * @return unsigned int 系统tick
 */
unsigned int userGetTick()
{
    struct timeval tv;
    gettimeofday(&tv, NULL);
    return (tv.tv_sec * 1000 + tv.tv_usec / 1000) & 0x7FFFFFFF;
}

/**
 * @brief 用户shell写
 * 
 * @param data 数据
 */
unsigned short userShellWrite(char *data, unsigned short len)
{
    unsigned short length = len;
    while (length--)
    {
        putchar(*data++);
    }
    return len;
}

/**
 * @brief 用户shell读
 * 
 * @param data 数据
 * @return char 状态
 */
unsigned short userShellRead(char *data, unsigned short len)
{
    unsigned short length = len;
    while (length--)
    {
        *data++ = getchar();
    }
    return len;
}


/**
 * @brief 用户shell初始化
 * 
 */
void userShellInit(void)
{
    shell.write = userShellWrite;
    shell.read = userShellRead;
    shellInit(&shell, shellBuffer, 512);
    shellTask(&shell);
}