Ejemplos de intel_init_hw_struct en C++ (Cpp)

Ejemplo n.º 1

static int __init mod_init(void)
{
	int err = -ENODEV;
	int i;
	struct pci_dev *dev = NULL;
	void __iomem *mem = mem;
	u8 hw_status;
	struct intel_rng_hw *intel_rng_hw;

	for (i = 0; !dev && pci_tbl[i].vendor; ++i)
		dev = pci_get_device(pci_tbl[i].vendor, pci_tbl[i].device,
				     NULL);

	if (!dev)
		goto out; 

	if (no_fwh_detect < 0) {
		pci_dev_put(dev);
		goto fwh_done;
	}

	intel_rng_hw = kmalloc(sizeof(*intel_rng_hw), GFP_KERNEL);
	if (!intel_rng_hw) {
		pci_dev_put(dev);
		goto out;
	}

	err = intel_init_hw_struct(intel_rng_hw, dev);
	if (err) {
		pci_dev_put(dev);
		kfree(intel_rng_hw);
		if (err == -ENODEV)
			goto fwh_done;
		goto out;
	}

	
	err = stop_machine(intel_rng_hw_init, intel_rng_hw, NULL);
	pci_dev_put(dev);
	iounmap(intel_rng_hw->mem);
	kfree(intel_rng_hw);
	if (err)
		goto out;

fwh_done:
	err = -ENOMEM;
	mem = ioremap(INTEL_RNG_ADDR, INTEL_RNG_ADDR_LEN);
	if (!mem)
		goto out;
	intel_rng.priv = (unsigned long)mem;

	
	err = -ENODEV;
	hw_status = hwstatus_get(mem);
	if ((hw_status & INTEL_RNG_PRESENT) == 0) {
		iounmap(mem);
		goto out;
	}

	printk(KERN_INFO "Intel 82802 RNG detected\n");
	err = hwrng_register(&intel_rng);
	if (err) {
		printk(KERN_ERR PFX "RNG registering failed (%d)\n",
		       err);
		iounmap(mem);
	}
out:
	return err;

}

Ejemplo n.º 2

Archivo: intel-rng.c Proyecto: Medvedroid/OT_903D-kernel-2.6.35.7

static int __init mod_init(void)
{
	int err = -ENODEV;
	int i;
	struct pci_dev *dev = NULL;
	void __iomem *mem = mem;
	u8 hw_status;
	struct intel_rng_hw *intel_rng_hw;

	for (i = 0; !dev && pci_tbl[i].vendor; ++i)
		dev = pci_get_device(pci_tbl[i].vendor, pci_tbl[i].device,
				     NULL);

	if (!dev)
		goto out; /* Device not found. */

	if (no_fwh_detect < 0) {
		pci_dev_put(dev);
		goto fwh_done;
	}

	intel_rng_hw = kmalloc(sizeof(*intel_rng_hw), GFP_KERNEL);
	if (!intel_rng_hw) {
		pci_dev_put(dev);
		goto out;
	}

	err = intel_init_hw_struct(intel_rng_hw, dev);
	if (err) {
		pci_dev_put(dev);
		kfree(intel_rng_hw);
		if (err == -ENODEV)
			goto fwh_done;
		goto out;
	}

	/*
	 * Since the BIOS code/data is going to disappear from its normal
	 * location with the Read ID command, all activity on the system
	 * must be stopped until the state is back to normal.
	 *
	 * Use stop_machine because IPIs can be blocked by disabling
	 * interrupts.
	 */
	err = stop_machine(intel_rng_hw_init, intel_rng_hw, NULL);
	pci_dev_put(dev);
	iounmap(intel_rng_hw->mem);
	kfree(intel_rng_hw);
	if (err)
		goto out;

fwh_done:
	err = -ENOMEM;
	mem = ioremap(INTEL_RNG_ADDR, INTEL_RNG_ADDR_LEN);
	if (!mem)
		goto out;
	intel_rng.priv = (unsigned long)mem;

	/* Check for Random Number Generator */
	err = -ENODEV;
	hw_status = hwstatus_get(mem);
	if ((hw_status & INTEL_RNG_PRESENT) == 0) {
		iounmap(mem);
		goto out;
	}

	printk(KERN_INFO "Intel 82802 RNG detected\n");
	err = hwrng_register(&intel_rng);
	if (err) {
		printk(KERN_ERR PFX "RNG registering failed (%d)\n",
		       err);
		iounmap(mem);
	}
out:
	return err;

}