Exemplos de P_UART_RFIFO em C++ (Cpp)

Exemplo n.º 1

Arquivo: serial.c Projeto: alpha-it/u-boot

/*
 * Read a single byte from the serial port.
 */
SPL_STATIC_FUNC
int serial_getc(void)
{
    unsigned char ch;
    /* Wait till character is placed in fifo */
  	while((readl(P_UART_STATUS(UART_PORT_CONS)) & UART_STAT_MASK_RFIFO_CNT)==0) ;

    /* Also check for overflow errors */
    if (readl(P_UART_STATUS(UART_PORT_CONS)) & (UART_STAT_MASK_PRTY_ERR | UART_STAT_MASK_FRAM_ERR))
	{
	    setbits_le32(P_UART_CONTROL(UART_PORT_CONS),UART_CNTL_MASK_CLR_ERR);
	    clrbits_le32(P_UART_CONTROL(UART_PORT_CONS),UART_CNTL_MASK_CLR_ERR);
	}

    ch = readl(P_UART_RFIFO(UART_PORT_CONS)) & 0x00ff;
    return ((int)ch);

}

Exemplo n.º 2

Arquivo: serial.c Projeto: RoelandK/Amlogic-reff16-uboot

/*
 * Read a single byte from the serial port. 
 */
int serial_getc_port (int port)
{
    unsigned char ch;   
    unsigned port_base = port_base_addrs[port];
    /* Wait till character is placed in fifo */
  	while((readl(P_UART_STATUS(port_base)) & UART_STAT_MASK_RFIFO_CNT)==0) ;
  	ch = readl(P_UART_RFIFO(port_base)) & 0x00ff;
    /* Also check for overflow errors */
    if (readl(P_UART_STATUS(port_base)) & (UART_STAT_MASK_PRTY_ERR | UART_STAT_MASK_FRAM_ERR))
    {
    	writel(readl(P_UART_CONTROL(port_base)) |UART_CNTL_MASK_CLR_ERR,P_UART_CONTROL(port_base));//clear errors
        writel(readl(P_UART_CONTROL(port_base)) & (~UART_CNTL_MASK_CLR_ERR),P_UART_CONTROL(port_base));

    }
    

    return ((int)ch);

}