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pci-asb2305.h
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1 /* ASB2305 Arch-specific PCI declarations
2  *
3  * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
4  * Written by David Howells ([email protected])
5  * Derived from: arch/i386/kernel/pci-i386.h: (c) 1999 Martin Mares <[email protected]>
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 
23 #define PCI_PROBE_BIOS 1
24 #define PCI_PROBE_CONF1 2
25 #define PCI_PROBE_CONF2 4
26 #define PCI_NO_CHECKS 0x400
27 #define PCI_ASSIGN_ROMS 0x1000
28 #define PCI_BIOS_IRQ_SCAN 0x2000
29 
30 extern unsigned int pci_probe;
31 
32 /* pci-asb2305.c */
33 
34 extern void pcibios_resource_survey(void);
35 
36 /* pci.c */
37 
38 extern int pcibios_last_bus;
39 extern struct pci_bus *pci_root_bus;
40 extern struct pci_ops *pci_root_ops;
41 
43 extern int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
44 
45 /* pci-irq.c */
46 
47 struct irq_info {
48  u8 bus, devfn; /* Bus, device and function */
49  struct {
50  u8 link; /* IRQ line ID, chipset dependent,
51  * 0=not routed */
52  u16 bitmap; /* Available IRQs */
53  } __attribute__((packed)) irq[4];
54  u8 slot; /* Slot number, 0=onboard */
56 } __attribute__((packed));
57 
59  u32 signature; /* PIRQ_SIGNATURE should be here */
60  u16 version; /* PIRQ_VERSION */
61  u16 size; /* Table size in bytes */
62  u8 rtr_bus, rtr_devfn; /* Where the interrupt router lies */
63  u16 exclusive_irqs; /* IRQs devoted exclusively to PCI usage */
64  u16 rtr_vendor, rtr_device; /* Vendor and device ID of interrupt router */
65  u32 miniport_data; /* Crap */
66  u8 rfu[11];
67  u8 checksum; /* Modulo 256 checksum must give zero */
68  struct irq_info slots[0];
69 } __attribute__((packed));
70 
71 extern unsigned int pcibios_irq_mask;
72 
73 extern void pcibios_irq_init(void);
74 extern void pcibios_fixup_irqs(void);
75 extern void pcibios_enable_irq(struct pci_dev *dev);
76 
77 #endif /* PCI_ASB2305_H */