pci-asb2305.h

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/* ASB2305 Arch-specific PCI declarations
 *
 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
 * Written by David Howells ([email protected])
 * Derived from: arch/i386/kernel/pci-i386.h: (c) 1999 Martin Mares <[email protected]>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public Licence
 * as published by the Free Software Foundation; either version
 * 2 of the Licence, or (at your option) any later version.
 */
#ifndef _PCI_ASB2305_H
#define _PCI_ASB2305_H

#undef DEBUG

#ifdef DEBUG
#define DBG(x...) printk(x)
#else
#define DBG(x...)
#endif

#define PCI_PROBE_BIOS 1
#define PCI_PROBE_CONF1 2
#define PCI_PROBE_CONF2 4
#define PCI_NO_CHECKS 0x400
#define PCI_ASSIGN_ROMS 0x1000
#define PCI_BIOS_IRQ_SCAN 0x2000

extern unsigned int pci_probe;

/* pci-asb2305.c */

extern void pcibios_resource_survey(void);

/* pci.c */

extern int pcibios_last_bus;
extern struct pci_bus *pci_root_bus;
extern struct pci_ops *pci_root_ops;

extern struct irq_routing_table *pcibios_get_irq_routing_table(void);
extern int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);

/* pci-irq.c */

struct irq_info {
    u8 bus, devfn;          /* Bus, device and function */
    struct {
        u8 link;        /* IRQ line ID, chipset dependent,
                     * 0=not routed */
        u16 bitmap;     /* Available IRQs */
    } __attribute__((packed)) irq[4];
    u8 slot;            /* Slot number, 0=onboard */
    u8 rfu;
} __attribute__((packed));

struct irq_routing_table {
    u32 signature;          /* PIRQ_SIGNATURE should be here */
    u16 version;            /* PIRQ_VERSION */
    u16 size;           /* Table size in bytes */
    u8 rtr_bus, rtr_devfn;      /* Where the interrupt router lies */
    u16 exclusive_irqs;     /* IRQs devoted exclusively to PCI usage */
    u16 rtr_vendor, rtr_device; /* Vendor and device ID of interrupt router */
    u32 miniport_data;      /* Crap */
    u8 rfu[11];
    u8 checksum;            /* Modulo 256 checksum must give zero */
    struct irq_info slots[0];
} __attribute__((packed));

extern unsigned int pcibios_irq_mask;

extern void pcibios_irq_init(void);
extern void pcibios_fixup_irqs(void);
extern void pcibios_enable_irq(struct pci_dev *dev);

#endif /* PCI_ASB2305_H */