C++ (Cpp) ilo_disable_interrupts Examples

Example #1

File: hpilo.c Project: Dashiee023/android_kernel_wiko_rainbow

static void ilo_remove(struct pci_dev *pdev)
{
	int i, minor;
	struct ilo_hwinfo *ilo_hw = pci_get_drvdata(pdev);

	clear_device(ilo_hw);

	minor = MINOR(ilo_hw->cdev.dev);
	for (i = minor; i < minor + MAX_CCB; i++)
		device_destroy(ilo_class, MKDEV(ilo_major, i));

	cdev_del(&ilo_hw->cdev);
	ilo_disable_interrupts(ilo_hw);
	free_irq(pdev->irq, ilo_hw);
	ilo_unmap_device(pdev, ilo_hw);
	pci_release_regions(pdev);
	/*
	 * pci_disable_device(pdev) used to be here. But this PCI device has
	 * two functions with interrupt lines connected to a single pin. The
	 * other one is a USB host controller. So when we disable the PIN here
	 * e.g. by rmmod hpilo, the controller stops working. It is because
	 * the interrupt link is disabled in ACPI since it is not refcounted
	 * yet. See acpi_pci_link_free_irq called from acpi_pci_irq_disable.
	 */
	kfree(ilo_hw);
	ilo_hwdev[(minor / MAX_CCB)] = 0;
}

Example #2

File: hpilo.c Project: xf739645524/kernel-rhel5

static void ilo_remove(struct pci_dev *pdev)
{
	int i, minor;
	struct ilo_hwinfo *ilo_hw = pci_get_drvdata(pdev);

	clear_device(ilo_hw);

	minor = MINOR(ilo_hw->cdev.dev);
	for (i = minor; i < minor + MAX_CCB; i++)
		device_destroy(ilo_class, MKDEV(ilo_major, i));

	cdev_del(&ilo_hw->cdev);
	ilo_disable_interrupts(ilo_hw);
	free_irq(pdev->irq, ilo_hw);
	ilo_unmap_device(pdev, ilo_hw);
	pci_release_regions(pdev);
	pci_disable_device(pdev);
	kfree(ilo_hw);
	ilo_hwdev[(minor / MAX_CCB)] = 0;
}

Example #3

File: hpilo.c Project: Dashiee023/android_kernel_wiko_rainbow

static int __devinit ilo_probe(struct pci_dev *pdev,
			       const struct pci_device_id *ent)
{
	int devnum, minor, start, error;
	struct ilo_hwinfo *ilo_hw;

	/* find a free range for device files */
	for (devnum = 0; devnum < MAX_ILO_DEV; devnum++) {
		if (ilo_hwdev[devnum] == 0) {
			ilo_hwdev[devnum] = 1;
			break;
		}
	}

	if (devnum == MAX_ILO_DEV) {
		dev_err(&pdev->dev, "Error finding free device\n");
		return -ENODEV;
	}

	/* track global allocations for this device */
	error = -ENOMEM;
	ilo_hw = kzalloc(sizeof(*ilo_hw), GFP_KERNEL);
	if (!ilo_hw)
		goto out;

	ilo_hw->ilo_dev = pdev;
	spin_lock_init(&ilo_hw->alloc_lock);
	spin_lock_init(&ilo_hw->fifo_lock);
	spin_lock_init(&ilo_hw->open_lock);

	error = pci_enable_device(pdev);
	if (error)
		goto free;

	pci_set_master(pdev);

	error = pci_request_regions(pdev, ILO_NAME);
	if (error)
		goto disable;

	error = ilo_map_device(pdev, ilo_hw);
	if (error)
		goto free_regions;

	pci_set_drvdata(pdev, ilo_hw);
	clear_device(ilo_hw);

	error = request_irq(pdev->irq, ilo_isr, IRQF_SHARED, "hpilo", ilo_hw);
	if (error)
		goto unmap;

	ilo_enable_interrupts(ilo_hw);

	cdev_init(&ilo_hw->cdev, &ilo_fops);
	ilo_hw->cdev.owner = THIS_MODULE;
	start = devnum * MAX_CCB;
	error = cdev_add(&ilo_hw->cdev, MKDEV(ilo_major, start), MAX_CCB);
	if (error) {
		dev_err(&pdev->dev, "Could not add cdev\n");
		goto remove_isr;
	}

	for (minor = 0 ; minor < MAX_CCB; minor++) {
		struct device *dev;
		dev = device_create(ilo_class, &pdev->dev,
				    MKDEV(ilo_major, minor), NULL,
				    "hpilo!d%dccb%d", devnum, minor);
		if (IS_ERR(dev))
			dev_err(&pdev->dev, "Could not create files\n");
	}

	return 0;
remove_isr:
	ilo_disable_interrupts(ilo_hw);
	free_irq(pdev->irq, ilo_hw);
unmap:
	ilo_unmap_device(pdev, ilo_hw);
free_regions:
	pci_release_regions(pdev);
disable:
/*	pci_disable_device(pdev);  see comment in ilo_remove */
free:
	kfree(ilo_hw);
out:
	ilo_hwdev[devnum] = 0;
	return error;
}