Esempi in C++ (Cpp) per sbd_receive_drain

Esempio n. 1

File: sb1250-duart.c Progetto: rrowicki/Chrono_Kernel-1

static int sbd_startup(struct uart_port *uport)
{
	struct sbd_port *sport = to_sport(uport);
	unsigned int mode1;
	int ret;

	ret = request_irq(sport->port.irq, sbd_interrupt,
			  IRQF_SHARED, "sb1250-duart", sport);
	if (ret)
		return ret;

	/* Clear the receive FIFO.  */
	sbd_receive_drain(sport);

	/* Clear the interrupt registers.  */
	write_sbdchn(sport, R_DUART_CMD, V_DUART_MISC_CMD_RESET_BREAK_INT);
	read_sbdshr(sport, R_DUART_INCHREG((uport->line) % 2));

	/* Set rx/tx interrupt to FIFO available.  */
	mode1 = read_sbdchn(sport, R_DUART_MODE_REG_1);
	mode1 &= ~(M_DUART_RX_IRQ_SEL_RXFULL | M_DUART_TX_IRQ_SEL_TXEMPT);
	write_sbdchn(sport, R_DUART_MODE_REG_1, mode1);

	/* Disable tx, enable rx.  */
	write_sbdchn(sport, R_DUART_CMD, M_DUART_TX_DIS | M_DUART_RX_EN);
	sport->tx_stopped = 1;

	/* Enable interrupts.  */
	write_sbdshr(sport, R_DUART_IMRREG((uport->line) % 2),
		     M_DUART_IMR_IN | M_DUART_IMR_RX);

	return 0;
}

Esempio n. 2

static int sbd_startup(struct uart_port *uport)
{
	struct sbd_port *sport = to_sport(uport);
	unsigned int mode1;
	int ret;

	ret = request_irq(sport->port.irq, sbd_interrupt,
			  IRQF_SHARED, "sb1250-duart", sport);
	if (ret)
		return ret;

	
	sbd_receive_drain(sport);

	
	write_sbdchn(sport, R_DUART_CMD, V_DUART_MISC_CMD_RESET_BREAK_INT);
	read_sbdshr(sport, R_DUART_INCHREG((uport->line) % 2));

	
	mode1 = read_sbdchn(sport, R_DUART_MODE_REG_1);
	mode1 &= ~(M_DUART_RX_IRQ_SEL_RXFULL | M_DUART_TX_IRQ_SEL_TXEMPT);
	write_sbdchn(sport, R_DUART_MODE_REG_1, mode1);

	
	write_sbdchn(sport, R_DUART_CMD, M_DUART_TX_DIS | M_DUART_RX_EN);
	sport->tx_stopped = 1;

	
	write_sbdshr(sport, R_DUART_IMRREG((uport->line) % 2),
		     M_DUART_IMR_IN | M_DUART_IMR_RX);

	return 0;
}