mirror of
https://github.com/torvalds/linux.git
synced 2024-12-14 23:25:54 +00:00
35 lines
848 B
C
35 lines
848 B
C
|
#include <linux/pci.h>
|
||
|
|
#include <linux/init.h>
|
||
|
|
|
||
|
|
int pci_range_ck(unsigned char bus, unsigned char dev)
|
||
|
|
{
|
||
|
|
if (((bus == 0) || (bus == 1)) && (dev >= 6) && (dev <= 8))
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* After detecting all agents over the PCI , this function is called
|
||
|
|
* in order to give an interrupt number for each PCI device starting
|
||
|
|
* from IRQ 20. It does also enables master for each device.
|
||
|
|
*/
|
||
|
|
void __devinit pcibios_fixup_bus(struct pci_bus *bus)
|
||
|
|
{
|
||
|
|
unsigned int irq = 20;
|
||
|
|
struct pci_bus *current_bus = bus;
|
||
|
|
struct pci_dev *dev;
|
||
|
|
struct list_head *devices_link;
|
||
|
|
|
||
|
|
list_for_each(devices_link, &(current_bus->devices)) {
|
||
|
|
dev = pci_dev_b(devices_link);
|
||
|
|
if (dev != NULL) {
|
||
|
|
dev->irq = irq++;
|
||
|
|
|
||
|
|
/* Assign an interrupt number for the device */
|
||
|
|
pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq);
|
||
|
|
pcibios_set_master(dev);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|