agile_console/examples/agile_console_serial_be.c

#include <rtthread.h>

#ifdef PKG_USING_AGILE_CONSOLE
#ifdef PKG_USING_AGILE_CONSOLE_SERIAL_EXAMPLE

#include <agile_console.h>

static rt_device_t serial_dev = RT_NULL;

static struct agile_console_backend _console_backend = {0};

static void serial_backend_output(rt_device_t dev, const uint8_t *buf, int len)
{
    if (serial_dev == RT_NULL)
        return;

    if (dev->open_flag & RT_DEVICE_FLAG_STREAM)
        serial_dev->open_flag |= RT_DEVICE_FLAG_STREAM;
    else
        serial_dev->open_flag &= ~RT_DEVICE_FLAG_STREAM;

    rt_device_write(serial_dev, 0, buf, len);
}

static int serial_backend_read(rt_device_t dev, uint8_t *buf, int len)
{
    if (serial_dev == RT_NULL)
        return 0;

    return rt_device_read(serial_dev, 0, buf, len);
}

static int agile_colsole_serial_board_init(void)
{
    serial_dev = rt_device_find(PKG_AGILE_CONSOLE_SERIAL_DEVICE_NAME);
    if (serial_dev == RT_NULL)
        return -RT_ERROR;

    if (rt_device_open(serial_dev, RT_DEVICE_OFLAG_RDWR) != RT_EOK)
        return -RT_ERROR;

    _console_backend.output = serial_backend_output;
    _console_backend.read = serial_backend_read;

    agile_console_backend_register(&_console_backend);

    return RT_EOK;
}
INIT_BOARD_EXPORT(agile_colsole_serial_board_init);

static rt_err_t serial_rx_ind(rt_device_t dev, rt_size_t size)
{
    agile_console_wakeup();

    return RT_EOK;
}

static int agile_console_serial_input_init(void)
{
    if (serial_dev == RT_NULL)
        return -RT_ERROR;

    int ret = rt_device_open(serial_dev, RT_DEVICE_FLAG_INT_RX | RT_DEVICE_FLAG_RDWR);
    if (ret == RT_EOK)
        rt_device_set_rx_indicate(serial_dev, serial_rx_ind);

    return ret;
}
INIT_DEVICE_EXPORT(agile_console_serial_input_init);

#endif /* PKG_USING_AGILE_CONSOLE_SERIAL_EXAMPLE */
#endif /* PKG_USING_AGILE_CONSOLE */