C++ (Cpp) io_apic_set_pci_routing Examples

Example #1

File: vlv2.c Project: raininja/android_kernel_asus_a500cg

/* Propagate PCI IRQ# */
static int vlv2_pci_enable_irq(struct pci_dev *pdev)
{

	u8 ir_val, dev;
	void __iomem *ilb_mem;
	struct io_apic_irq_attr irq_attr;

	ilb_mem = ioremap_nocache(ILB_BASE, ILB_SIZE);
	if (ilb_mem == NULL) {
		pr_err("%s(): can't map ILB_BASE(0x%x)\n",
			__func__, ILB_BASE);
		return -EIO;
	}

	dev = PCI_DEV_NUM(pdev->devfn);
	ir_val = ioread8(ilb_mem + ILB_IR + PCI_DEV_NUM(pdev->devfn) * 2);

	iounmap(ilb_mem);

	/* map INTA# only */
	pdev->irq = PIRQ2IRQ(IR_INTA(ir_val));
	pci_write_config_byte(pdev, PCI_INTERRUPT_LINE, pdev->irq);

	irq_attr.ioapic = mp_find_ioapic(pdev->irq);
	irq_attr.ioapic_pin = pdev->irq;
	irq_attr.trigger = 1; /* level */
	irq_attr.polarity = 1; /* active low */
	io_apic_set_pci_routing(&pdev->dev, pdev->irq, &irq_attr);

	return 0;
}

Example #2

File: platform_soc_thermal.c Project: AOSP-Zenfone2/kernel_asus_moorefield_stock

static inline int byt_program_ioapic(int irq, int trigger, int polarity)
{
	struct io_apic_irq_attr irq_attr;
	int ioapic;

	ioapic = mp_find_ioapic(irq);
	if (ioapic < 0)
		return -EINVAL;
	irq_attr.ioapic = ioapic;
	irq_attr.ioapic_pin = irq;
	irq_attr.trigger = trigger;
	irq_attr.polarity = polarity;
	return io_apic_set_pci_routing(NULL, irq, &irq_attr);
}

Example #3

File: rtc.c Project: 0x000000FF/Linux4Edison

static int handle_mrfl_dev_ioapic(int irq)
{
	int ret = 0;
	int ioapic;
	struct io_apic_irq_attr irq_attr;

	ioapic = mp_find_ioapic(irq);
	if (ioapic >= 0) {
		irq_attr.ioapic = ioapic;
		irq_attr.ioapic_pin = irq;
		irq_attr.trigger = 1;
		irq_attr.polarity = 0; /* Active high */
		io_apic_set_pci_routing(NULL, irq, &irq_attr);
	} else {
		pr_warn("can not find interrupt %d in ioapic\n", irq);
		ret = -EINVAL;
	}

	return ret;
}