C++ (Cpp) SCxSR_ERROR_CLEAR Examples

Example #1

static irqreturn_t sci_er_interrupt(int irq, void *ptr)
{
	struct uart_port *port = ptr;

	/* Handle errors */
	if (port->type == PORT_SCI) {
		if (sci_handle_errors(port)) {
			/* discard character in rx buffer */
			sci_in(port, SCxSR);
			sci_out(port, SCxSR, SCxSR_RDxF_CLEAR(port));
		}
	} else {
#if defined(SCIF_ORER)
		if((sci_in(port, SCLSR) & SCIF_ORER) != 0) {
			struct tty_struct *tty = port->info->port.tty;

			sci_out(port, SCLSR, 0);
			tty_insert_flip_char(tty, 0, TTY_OVERRUN);
			tty_flip_buffer_push(tty);
			pr_debug("scif: overrun error\n");
		}
#endif
		sci_rx_interrupt(irq, ptr);
	}

	sci_out(port, SCxSR, SCxSR_ERROR_CLEAR(port));

	/* Kick the transmission */
	sci_tx_interrupt(irq, ptr);

	return IRQ_HANDLED;
}

Example #2

File: serial_sh.c Project: ClarkChen633/u-boot-pi

void handle_error(void)
{
	sci_in(&sh_sci, SCxSR);
	sci_out(&sh_sci, SCxSR, SCxSR_ERROR_CLEAR(&sh_sci));
	sci_in(&sh_sci, SCLSR);
	sci_out(&sh_sci, SCLSR, 0x00);
}

Example #3

static int get_char(struct uart_port *port)
{
	unsigned long flags;
	unsigned short status;
	int c;

	spin_lock_irqsave(&port->lock, flags);
	do {
		status = sci_in(port, SCxSR);
		if (status & SCxSR_ERRORS(port)) {
			/* Clear error flags. */
			sci_out(port, SCxSR, SCxSR_ERROR_CLEAR(port));
			continue;
		}
	} while (!(status & SCxSR_RDxF(port)));
	c = sci_in(port, SCxRDR);
	sci_in(port, SCxSR);            /* Dummy read */
	sci_out(port, SCxSR, SCxSR_RDxF_CLEAR(port));
	spin_unlock_irqrestore(&port->lock, flags);

	return c;
}

Example #4

static inline void handle_error(struct uart_port *port)
{
	/* Clear error flags */
	sci_out(port, SCxSR, SCxSR_ERROR_CLEAR(port));
}

Example #5

File: sh-sci.c Project: BackupTheBerlios/tuxap

/* Clear any errors on the SCI */
static void kgdb_handle_error(struct sci_port *port)
{
        sci_out(port, SCxSR, SCxSR_ERROR_CLEAR(port));  /* Clear error flags */
}