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b920de1b DH |
1 | /* 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 | ||
23 | #define PCI_PROBE_BIOS 1 | |
24 | #define PCI_PROBE_CONF1 2 | |
25 | #define PCI_PROBE_CONF2 4 | |
b920de1b DH |
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 unsigned int pcibios_max_latency; | |
35 | ||
36 | extern void pcibios_resource_survey(void); | |
b920de1b DH |
37 | |
38 | /* pci.c */ | |
39 | ||
40 | extern int pcibios_last_bus; | |
41 | extern struct pci_bus *pci_root_bus; | |
42 | extern struct pci_ops *pci_root_ops; | |
43 | ||
44 | extern struct irq_routing_table *pcibios_get_irq_routing_table(void); | |
45 | extern int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq); | |
46 | ||
47 | /* pci-irq.c */ | |
48 | ||
49 | struct irq_info { | |
50 | u8 bus, devfn; /* Bus, device and function */ | |
51 | struct { | |
52 | u8 link; /* IRQ line ID, chipset dependent, | |
53 | * 0=not routed */ | |
54 | u16 bitmap; /* Available IRQs */ | |
55 | } __attribute__((packed)) irq[4]; | |
56 | u8 slot; /* Slot number, 0=onboard */ | |
57 | u8 rfu; | |
58 | } __attribute__((packed)); | |
59 | ||
60 | struct irq_routing_table { | |
61 | u32 signature; /* PIRQ_SIGNATURE should be here */ | |
62 | u16 version; /* PIRQ_VERSION */ | |
63 | u16 size; /* Table size in bytes */ | |
64 | u8 rtr_bus, rtr_devfn; /* Where the interrupt router lies */ | |
65 | u16 exclusive_irqs; /* IRQs devoted exclusively to PCI usage */ | |
66 | u16 rtr_vendor, rtr_device; /* Vendor and device ID of interrupt router */ | |
67 | u32 miniport_data; /* Crap */ | |
68 | u8 rfu[11]; | |
69 | u8 checksum; /* Modulo 256 checksum must give zero */ | |
70 | struct irq_info slots[0]; | |
71 | } __attribute__((packed)); | |
72 | ||
73 | extern unsigned int pcibios_irq_mask; | |
74 | ||
75 | extern void pcibios_irq_init(void); | |
76 | extern void pcibios_fixup_irqs(void); | |
77 | extern void pcibios_enable_irq(struct pci_dev *dev); | |
78 | ||
79 | #endif /* PCI_ASB2305_H */ |