/*
 * Copyright (c) Hisilicon Technologies Co., Ltd. 2014-2020. All rights reserved.
 * Description: console
 * Author: SmartMedia_BSP
 * Create: 2014-06-04
 */
#include <console.h>
#include <td_type.h>

#define KEY_CTRL_C                     0x03

static struct console *g_current = NULL;

int getchar(void)
{
#ifdef CONFIG_DISABLE_CONSOLE_INPUT
    return 0;
#endif
    return g_current ? g_current->getchar() : 0;
}

void putchar(unsigned int ch)
{
    if (g_current != NULL) {
        g_current->putchar(ch);
    }
}

int tstchar(void)
{
#ifdef CONFIG_DISABLE_CONSOLE_INPUT
    return 0;
#endif
    if (g_current != NULL) {
        return g_current->tstchar();
    } else {
        return 0;
    }
}

int isbreak(void)
{
    if (!tstchar()) {
        return 0;
    }
    return (getchar() == KEY_CTRL_C);
}

void console_init(struct console *console)
{
    g_current = console;
}