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David Howellsb920de12008-02-08 04:19:31 -08001/* ASB2305 Arch-specific PCI declarations
2 *
3 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 * Derived from: arch/i386/kernel/pci-i386.h: (c) 1999 Martin Mares <mj@ucw.cz>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public Licence
9 * as published by the Free Software Foundation; either version
10 * 2 of the Licence, or (at your option) any later version.
11 */
12#ifndef _PCI_ASB2305_H
13#define _PCI_ASB2305_H
14
15#undef DEBUG
16
17#ifdef DEBUG
18#define DBG(x...) printk(x)
19#else
20#define DBG(x...)
21#endif
22
David Howellsb920de12008-02-08 04:19:31 -080023extern unsigned int pci_probe;
24
25/* pci-asb2305.c */
26
David Howellsb920de12008-02-08 04:19:31 -080027extern void pcibios_resource_survey(void);
David Howellsb920de12008-02-08 04:19:31 -080028
29/* pci.c */
30
David Howellsb920de12008-02-08 04:19:31 -080031extern struct pci_ops *pci_root_ops;
32
33extern struct irq_routing_table *pcibios_get_irq_routing_table(void);
34extern int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
35
36/* pci-irq.c */
37
38struct irq_info {
39 u8 bus, devfn; /* Bus, device and function */
40 struct {
41 u8 link; /* IRQ line ID, chipset dependent,
42 * 0=not routed */
43 u16 bitmap; /* Available IRQs */
44 } __attribute__((packed)) irq[4];
45 u8 slot; /* Slot number, 0=onboard */
46 u8 rfu;
47} __attribute__((packed));
48
49struct irq_routing_table {
50 u32 signature; /* PIRQ_SIGNATURE should be here */
51 u16 version; /* PIRQ_VERSION */
52 u16 size; /* Table size in bytes */
53 u8 rtr_bus, rtr_devfn; /* Where the interrupt router lies */
54 u16 exclusive_irqs; /* IRQs devoted exclusively to PCI usage */
55 u16 rtr_vendor, rtr_device; /* Vendor and device ID of interrupt router */
56 u32 miniport_data; /* Crap */
57 u8 rfu[11];
58 u8 checksum; /* Modulo 256 checksum must give zero */
59 struct irq_info slots[0];
60} __attribute__((packed));
61
62extern unsigned int pcibios_irq_mask;
63
64extern void pcibios_irq_init(void);
65extern void pcibios_fixup_irqs(void);
66extern void pcibios_enable_irq(struct pci_dev *dev);
67
68#endif /* PCI_ASB2305_H */