tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#include <linux/pci.h>
2#include <linux/init.h>
3
4int pci_range_ck(unsigned char bus, unsigned char dev)
5{
6 if (((bus == 0) || (bus == 1)) && (dev >= 6) && (dev <= 8))
7 return 0;
8
9 return -1;
10}
11
12/*
13 * After detecting all agents over the PCI , this function is called
14 * in order to give an interrupt number for each PCI device starting
15 * from IRQ 20. It does also enables master for each device.
16 */
17void __devinit pcibios_fixup_bus(struct pci_bus *bus)
18{
19 unsigned int irq = 20;
20 struct pci_bus *current_bus = bus;
21 struct pci_dev *dev;
22 struct list_head *devices_link;
23
24 list_for_each(devices_link, &(current_bus->devices)) {
25 dev = pci_dev_b(devices_link);
26 if (dev != NULL) {
27 dev->irq = irq++;
28
29 /* Assign an interrupt number for the device */
30 pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq);
31 pcibios_set_master(dev);
32 }
33 }
34}