예제 #1
0
static int mvme162_scc_init(void)
{
	struct scc_port *port;

	if (!(mvme16x_config & MVME16x_CONFIG_GOT_SCCA))
		return (-ENODEV);

	printk(KERN_INFO "SCC: MVME162 Serial Driver\n");
	/* Init channel A */
	port = &scc_ports[0];
	port->channel = CHANNEL_A;
	port->ctrlp = (volatile unsigned char *)MVME_SCC_A_ADDR;
	port->datap = port->ctrlp + 2;
	port->port_a = &scc_ports[0];
	port->port_b = &scc_ports[1];
	request_irq(MVME162_IRQ_SCCA_TX, scc_tx_int, SA_INTERRUPT,
		            "SCC-A TX", port);
	request_irq(MVME162_IRQ_SCCA_STAT, scc_stat_int, SA_INTERRUPT,
		            "SCC-A status", port);
	request_irq(MVME162_IRQ_SCCA_RX, scc_rx_int, SA_INTERRUPT,
		            "SCC-A RX", port);
	request_irq(MVME162_IRQ_SCCA_SPCOND, scc_spcond_int, SA_INTERRUPT,
		            "SCC-A special cond", port);
	{
		SCC_ACCESS_INIT(port);

		/* disable interrupts for this channel */
		SCCwrite(INT_AND_DMA_REG, 0);
		/* Set the interrupt vector */
		SCCwrite(INT_VECTOR_REG, MVME162_IRQ_SCC_BASE);
		/* Interrupt parameters: vector includes status, status low */
		SCCwrite(MASTER_INT_CTRL, MIC_VEC_INCL_STAT);
		SCCmod(MASTER_INT_CTRL, 0xff, MIC_MASTER_INT_ENAB);
	}

	/* Init channel B */
	port = &scc_ports[1];
	port->channel = CHANNEL_B;
	port->ctrlp = (volatile unsigned char *)MVME_SCC_B_ADDR;
	port->datap = port->ctrlp + 2;
	port->port_a = &scc_ports[0];
	port->port_b = &scc_ports[1];
	request_irq(MVME162_IRQ_SCCB_TX, scc_tx_int, SA_INTERRUPT,
		            "SCC-B TX", port);
	request_irq(MVME162_IRQ_SCCB_STAT, scc_stat_int, SA_INTERRUPT,
		            "SCC-B status", port);
	request_irq(MVME162_IRQ_SCCB_RX, scc_rx_int, SA_INTERRUPT,
		            "SCC-B RX", port);
	request_irq(MVME162_IRQ_SCCB_SPCOND, scc_spcond_int, SA_INTERRUPT,
		            "SCC-B special cond", port);

	{
		SCC_ACCESS_INIT(port);	/* Either channel will do */

		/* disable interrupts for this channel */
		SCCwrite(INT_AND_DMA_REG, 0);
	}

        /* Ensure interrupts are enabled in the MC2 chip */
        *(volatile char *)0xfff4201d = 0x14;

	/* Initialise the tty driver structures and register */
	scc_init_portstructs();
	scc_init_drivers();

	return 0;
}
예제 #2
0
static int __init bvme6000_scc_init(void)
{
	struct scc_port *port;
	int error;

	printk(KERN_INFO "SCC: BVME6000 Serial Driver\n");
	/* Init channel A */
	port = &scc_ports[0];
	port->channel = CHANNEL_A;
	port->ctrlp = (volatile unsigned char *)BVME_SCC_A_ADDR;
	port->datap = port->ctrlp + 4;
	port->port_a = &scc_ports[0];
	port->port_b = &scc_ports[1];
	error = request_irq(BVME_IRQ_SCCA_TX, scc_tx_int, IRQF_DISABLED,
		            "SCC-A TX", port);
	if (error)
		goto fail;
	error = request_irq(BVME_IRQ_SCCA_STAT, scc_stat_int, IRQF_DISABLED,
		            "SCC-A status", port);
	if (error)
		goto fail_free_a_tx;
	error = request_irq(BVME_IRQ_SCCA_RX, scc_rx_int, IRQF_DISABLED,
		            "SCC-A RX", port);
	if (error)
		goto fail_free_a_stat;
	error = request_irq(BVME_IRQ_SCCA_SPCOND, scc_spcond_int,
			    IRQF_DISABLED, "SCC-A special cond", port);
	if (error)
		goto fail_free_a_rx;

	{
		SCC_ACCESS_INIT(port);

		/* disable interrupts for this channel */
		SCCwrite(INT_AND_DMA_REG, 0);
		/* Set the interrupt vector */
		SCCwrite(INT_VECTOR_REG, BVME_IRQ_SCC_BASE);
		/* Interrupt parameters: vector includes status, status low */
		SCCwrite(MASTER_INT_CTRL, MIC_VEC_INCL_STAT);
		SCCmod(MASTER_INT_CTRL, 0xff, MIC_MASTER_INT_ENAB);
	}

	/* Init channel B */
	port = &scc_ports[1];
	port->channel = CHANNEL_B;
	port->ctrlp = (volatile unsigned char *)BVME_SCC_B_ADDR;
	port->datap = port->ctrlp + 4;
	port->port_a = &scc_ports[0];
	port->port_b = &scc_ports[1];
	error = request_irq(BVME_IRQ_SCCB_TX, scc_tx_int, IRQF_DISABLED,
		            "SCC-B TX", port);
	if (error)
		goto fail_free_a_spcond;
	error = request_irq(BVME_IRQ_SCCB_STAT, scc_stat_int, IRQF_DISABLED,
		            "SCC-B status", port);
	if (error)
		goto fail_free_b_tx;
	error = request_irq(BVME_IRQ_SCCB_RX, scc_rx_int, IRQF_DISABLED,
		            "SCC-B RX", port);
	if (error)
		goto fail_free_b_stat;
	error = request_irq(BVME_IRQ_SCCB_SPCOND, scc_spcond_int,
			    IRQF_DISABLED, "SCC-B special cond", port);
	if (error)
		goto fail_free_b_rx;

	{
		SCC_ACCESS_INIT(port);	/* Either channel will do */

		/* disable interrupts for this channel */
		SCCwrite(INT_AND_DMA_REG, 0);
	}

	/* Initialise the tty driver structures and register */
	scc_init_portstructs();
	scc_init_drivers();

	return 0;

fail:
	free_irq(BVME_IRQ_SCCA_STAT, port);
fail_free_a_tx:
	free_irq(BVME_IRQ_SCCA_RX, port);
fail_free_a_stat:
	free_irq(BVME_IRQ_SCCA_SPCOND, port);
fail_free_a_rx:
	free_irq(BVME_IRQ_SCCB_TX, port);
fail_free_a_spcond:
	free_irq(BVME_IRQ_SCCB_STAT, port);
fail_free_b_tx:
	free_irq(BVME_IRQ_SCCB_RX, port);
fail_free_b_stat:
	free_irq(BVME_IRQ_SCCB_SPCOND, port);
fail_free_b_rx:
	return error;
}
예제 #3
0
static int mvme147_scc_init(void)
{
	struct scc_port *port;

	printk(KERN_INFO "SCC: MVME147 Serial Driver\n");
	/* Init channel A */
	port = &scc_ports[0];
	port->channel = CHANNEL_A;
	port->ctrlp = (volatile unsigned char *)M147_SCC_A_ADDR;
	port->datap = port->ctrlp + 1;
	port->port_a = &scc_ports[0];
	port->port_b = &scc_ports[1];
	request_irq(MVME147_IRQ_SCCA_TX, scc_tx_int, SA_INTERRUPT,
		            "SCC-A TX", port);
	request_irq(MVME147_IRQ_SCCA_STAT, scc_stat_int, SA_INTERRUPT,
		            "SCC-A status", port);
	request_irq(MVME147_IRQ_SCCA_RX, scc_rx_int, SA_INTERRUPT,
		            "SCC-A RX", port);
	request_irq(MVME147_IRQ_SCCA_SPCOND, scc_spcond_int, SA_INTERRUPT,
		            "SCC-A special cond", port);
	{
		SCC_ACCESS_INIT(port);

		/* disable interrupts for this channel */
		SCCwrite(INT_AND_DMA_REG, 0);
		/* Set the interrupt vector */
		SCCwrite(INT_VECTOR_REG, MVME147_IRQ_SCC_BASE);
		/* Interrupt parameters: vector includes status, status low */
		SCCwrite(MASTER_INT_CTRL, MIC_VEC_INCL_STAT);
		SCCmod(MASTER_INT_CTRL, 0xff, MIC_MASTER_INT_ENAB);
	}

	/* Init channel B */
	port = &scc_ports[1];
	port->channel = CHANNEL_B;
	port->ctrlp = (volatile unsigned char *)M147_SCC_B_ADDR;
	port->datap = port->ctrlp + 1;
	port->port_a = &scc_ports[0];
	port->port_b = &scc_ports[1];
	request_irq(MVME147_IRQ_SCCB_TX, scc_tx_int, SA_INTERRUPT,
		            "SCC-B TX", port);
	request_irq(MVME147_IRQ_SCCB_STAT, scc_stat_int, SA_INTERRUPT,
		            "SCC-B status", port);
	request_irq(MVME147_IRQ_SCCB_RX, scc_rx_int, SA_INTERRUPT,
		            "SCC-B RX", port);
	request_irq(MVME147_IRQ_SCCB_SPCOND, scc_spcond_int, SA_INTERRUPT,
		            "SCC-B special cond", port);
	{
		SCC_ACCESS_INIT(port);

		/* disable interrupts for this channel */
		SCCwrite(INT_AND_DMA_REG, 0);
	}

        /* Ensure interrupts are enabled in the PCC chip */
        m147_pcc->serial_cntrl=PCC_LEVEL_SERIAL|PCC_INT_ENAB;

	/* Initialise the tty driver structures and register */
	scc_init_portstructs();
	scc_init_drivers();

	return 0;
}