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pci-asb2305.h

/* ASB2305 Arch-specific PCI declarations
 *
 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
 * Written by David Howells (dhowells@redhat.com)
 * Derived from: arch/i386/kernel/pci-i386.h: (c) 1999 Martin Mares <mj@ucw.cz>
 *
 * 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 unsigned int pcibios_max_latency;

extern void pcibios_resource_survey(void);
extern int pcibios_enable_resources(struct pci_dev *dev, int mask);

/* 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 */

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