/*
 * This file is part of the MicroPython project, http://micropython.org/
 *
 * The MIT License (MIT)
 *
 * Copyright (c) 2022 KY-zhang-X
 *
 * 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.
 */

#include "py/mpconfig.h"
#include "py/mpthread.h"
#include "py/mphal.h"
#include "tos_k.h"
#include "tos_hal.h"
#include "machine_uart.h"
// #include "mpshellport.h"

int mp_hal_stdin_rx_chr(void) 
{
    while (1) {
        // int c = mp_shell_getchar();
        int c = -1;
        struct _machine_uart_obj_t *uart = MP_STATE_PORT(stdio_uart);
        if (uart != NULL) {
            c = machine_uart_rx_chr(uart);
        }
        if (c != -1) {
            return c;
        }
        MICROPY_EVENT_POLL_HOOK
    }
}

void mp_hal_stdout_tx_strn(const char *str, mp_uint_t len) 
{
    struct _machine_uart_obj_t *uart = MP_STATE_PORT(stdio_uart);
    machine_uart_tx_strn(uart, str, len);
    // mp_shell_putsn(str, len);
}

void mp_hal_delay_ms(mp_uint_t ms)
{
    k_tick_t start_tick = tos_systick_get();
    k_tick_t ticks = tos_millisec2tick(ms);
    while (tos_systick_get() < start_tick + ticks) {
        MICROPY_EVENT_POLL_HOOK
        tos_task_delay(1);
    }
}

mp_uint_t mp_hal_ticks_ms(void)
{
    return tos_tick2millisec(tos_systick_get());
}

mp_uint_t mp_hal_ticks_cpu(void)
{
    return tos_systick_get();
}

uint64_t mp_hal_time_ns(void)
{
    // not support
    return 0;
}