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#ifndef PIRQ_H_INCLUDED
#define PIRQ_H_INCLUDED
/*
* PCI IRQ Routing Table dumper
* Copyright (c) 2006 Dell, Inc.
* by Matt Domsch <Matt_Domsch@dell.com>
*
* Based on the description of said table found at
* http://www.microsoft.com/hwdev/busbios/pciirq.htm
* Licensed under the GNU General Public license, version 2.
*/
#include <stdint.h>
#include <stdlib.h>
typedef unsigned char __u8;
typedef unsigned short int __u16;
typedef unsigned int __u32;
struct slot_entry {
__u8 bus;
__u8 device;
__u8 inta_link;
__u16 inta_irq;
__u8 intb_link;
__u16 intb_irq;
__u8 intc_link;
__u16 intc_irq;
__u8 intd_link;
__u16 intd_irq;
__u8 slot;
__u8 reserved;
} __attribute__((packed));
struct routing_table {
__u32 signature;
__u16 version;
__u16 size;
__u8 router_bus;
__u8 router_devfn;
__u16 exclusive_irqs;
__u32 compatable_router;
__u32 miniport_data;
__u8 reserved[11];
__u8 checksum;
struct slot_entry slot[1];
} __attribute__((packed));
#define PCI_DEVICE(devfn) (((devfn) >> 3) & 0x1f)
#define PCI_FUNC(devfn) ((devfn) & 0x07)
extern struct routing_table * pirq_alloc_read_table(void);
extern void pirq_free_table(struct routing_table *table);
extern int pirq_pci_dev_to_slot(struct routing_table *table, int domain, int bus, int dev);
#endif /* PIRQ_H_INCLUDED */
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