예제 #1
0
파일: sh-sci.c 프로젝트: mobilipia/iods
static irqreturn_t sci_mpxed_interrupt(int irq, void *ptr)
{
        unsigned short ssr_status, scr_status;
        struct uart_port *port = ptr;

        ssr_status = sci_in(port,SCxSR);
        scr_status = sci_in(port,SCSCR);

	/* Tx Interrupt */
        if ((ssr_status & 0x0020) && (scr_status & 0x0080))
                sci_tx_interrupt(irq, ptr);
	/* Rx Interrupt */
        if ((ssr_status & 0x0002) && (scr_status & 0x0040))
                sci_rx_interrupt(irq, ptr);
	/* Error Interrupt */
        if ((ssr_status & 0x0080) && (scr_status & 0x0400))
                sci_er_interrupt(irq, ptr);
	/* Break Interrupt */
        if ((ssr_status & 0x0010) && (scr_status & 0x0200))
                sci_br_interrupt(irq, ptr);

	return IRQ_HANDLED;
}
예제 #2
0
static irqreturn_t sci_mpxed_interrupt(int irq, void *ptr)
{
	unsigned short ssr_status, scr_status;
	struct uart_port *port = ptr;
	irqreturn_t ret = IRQ_NONE;

        ssr_status = sci_in(port,SCxSR);
        scr_status = sci_in(port,SCSCR);

	/* Tx Interrupt */
	if ((ssr_status & 0x0020) && (scr_status & SCI_CTRL_FLAGS_TIE))
		ret = sci_tx_interrupt(irq, ptr);
	/* Rx Interrupt */
	if ((ssr_status & 0x0002) && (scr_status & SCI_CTRL_FLAGS_RIE))
		ret = sci_rx_interrupt(irq, ptr);
	/* Error Interrupt */
	if ((ssr_status & 0x0080) && (scr_status & SCI_CTRL_FLAGS_REIE))
		ret = sci_er_interrupt(irq, ptr);
	/* Break Interrupt */
	if ((ssr_status & 0x0010) && (scr_status & SCI_CTRL_FLAGS_REIE))
		ret = sci_br_interrupt(irq, ptr);

	return ret;
}