C++ (Cpp) rt_ringbuffer_getchar Examples

Example #1

File: spi_bridge.c Project: houzhenggang/wrtnode2r_stm32-led16x16-git

static rt_uint8_t wrtnode2r_spi_stm32_get_write_buf_data(void)
{
    rt_uint8_t ch = 0;

    rt_ringbuffer_getchar(&spi_bridge.write_buf, &ch);
    return ch;
}

Example #2

File: vuart.c Project: nathanlnw/HB_GGHYPT_ALL_COMBINE

/***********************************************************
* Function:gps_read
* Description:数据模式下读取数据
* Input:
* Input:
* Output:
* Return:
* Others:
***********************************************************/
static rt_size_t dev_vuart_read( rt_device_t dev, rt_off_t pos, void* buff, rt_size_t count )
{
	if(count>1)
		return rt_ringbuffer_get(&rb_vuart,buff,count);
	else
		return rt_ringbuffer_getchar(&rb_vuart,buff);

}

Example #3

File: uart_console.c Project: ettm2012/rt-thread

static int console_getc(struct rt_serial_device *serial)
{
    char ch;
    struct console_uart* uart;

    RT_ASSERT(serial != RT_NULL);
    uart = (struct console_uart *)serial->parent.user_data;

    if (rt_ringbuffer_getchar(&(uart->rb), &ch)) return ch;

    return -1;
}

Example #4

File: cdc_serial.c Project: dtyangcm/rtt-stm32f103c8

static int _vcom_getc(struct rt_serial_device *serial)
{
    int result;
    rt_uint8_t ch;
    rt_uint32_t level;

    result = -1;

    level = rt_hw_interrupt_disable();
    if (RT_RINGBUFFER_SIZE(&rx_ringbuffer))
    {
        rt_ringbuffer_getchar(&rx_ringbuffer, &ch);
        result = ch;
    }
    rt_hw_interrupt_enable(level);

    return result;
}

Example #5

File: cdc_vcom.c Project: cedar-renjun/air-conditioning-assistant

static int _vcom_getc(struct rt_serial_device *serial)
{
    int result;
    rt_uint8_t ch;
    rt_uint32_t level;
    struct ufunction *func;
    struct vcom *data;
    
    func = (struct ufunction*)serial->parent.user_data;
    data = (struct vcom*)func->user_data;

    result = -1;

    level = rt_hw_interrupt_disable();

    if(rt_ringbuffer_getchar(&data->rx_ringbuffer, &ch) != 0)
    {
        result = ch;
    }

    rt_hw_interrupt_enable(level);

    return result;
}