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#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>

#include <hal_log.h>
#include <hal_cmd.h>
#include <hal_timer.h>
#include <hal_uart.h>

static void cmd_usage(void)
{
    printf("Usage:\n"
        "\t hal_uart <port> <baudrate>\n");
}

int cmd_test_uart(int argc, char **argv)
{
    char tbuf[6] = {"hello"};
    uint8_t rbuf[10] = {0};
    uart_port_t port;
    uint32_t baudrate;
    _uart_config_t uart_config;
    int i;

    hal_log_info("Testing UART in loopback mode");

    if (argc != 3) {
        cmd_usage();
        return -1;
    }

    port = strtol(argv[1], NULL, 0);
    baudrate = strtol(argv[2], NULL, 0);

    memset(rbuf, 0, 10 * sizeof(uint8_t));

    switch (baudrate) {
    case 4800:
        uart_config.baudrate = UART_BAUDRATE_4800;
        break;

    case 9600:
        uart_config.baudrate = UART_BAUDRATE_9600;
        break;

    case 115200:
        uart_config.baudrate = UART_BAUDRATE_115200;
        break;

    default:
        hal_log_info("Using default baudrate: 115200");
        uart_config.baudrate = UART_BAUDRATE_115200;
        break;
    }

    uart_config.word_length = UART_WORD_LENGTH_8;
    uart_config.stop_bit = UART_STOP_BIT_1;
    uart_config.parity = UART_PARITY_NONE;

    hal_uart_init(port);
    hal_uart_control(port, 0, &uart_config);
    hal_uart_disable_flowcontrol(port);
    hal_uart_set_loopback(port, 1);

    /* send */
    hal_uart_send(port, tbuf, 5);

    /* loopback receive */
    hal_uart_receive(port, rbuf, 5);

    printf("Sending:");
    for (i = 0; i < 5; i++)
        printf("%c", tbuf[i]);
    printf("\n");

    printf("Receiving:");
    for (i = 0; i < 5; i++)
        printf("%c", rbuf[i]);
    printf("\n");

    /* verify data */
    for (i = 0; i < 5; i++) {
        if (tbuf[i] != rbuf[i])
            break;
    }
    if (i == 5) {
        hal_log_info("Test hal_uart_init API success!");
        hal_log_info("Test hal_uart_control API success!");
        hal_log_info("Test hal_uart_disable_flowcontrol API success!");
        hal_log_info("Test hal_uart_set_loopback API success!");
        hal_log_info("Test hal_uart_send API success!");
        hal_log_info("Test hal_uart_receive API success!");
        hal_log_info("Test hal_uart_deinit API success!");
        hal_log_info("Test uart hal APIs success!");
    } else {
        hal_log_info("Test uart hal APIs failed!");
    }

    hal_msleep(1000);
    hal_uart_deinit(port);

    return 0;
}

FINSH_FUNCTION_EXPORT_CMD(cmd_test_uart, hal_uart, uart hal APIs tests)