LXR linux/arch/mn10300/unit-asb2305/pci-asb2305.h

   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
  26#define PCI_NO_CHECKS 0x400
  27#define PCI_ASSIGN_ROMS 0x1000
  28#define PCI_BIOS_IRQ_SCAN 0x2000
  29
  30extern unsigned int pci_probe;
  31
  32/* pci-asb2305.c */
  33
  34extern void pcibios_resource_survey(void);
  35
  36/* pci.c */
  37
  38extern int pcibios_last_bus;
  39extern struct pci_bus *pci_root_bus;
  40extern struct pci_ops *pci_root_ops;
  41
  42extern struct irq_routing_table *pcibios_get_irq_routing_table(void);
  43extern int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
  44
  45/* pci-irq.c */
  46
  47struct 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 */
  55        u8 rfu;
  56} __attribute__((packed));
  57
  58struct irq_routing_table {
  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
  71extern unsigned int pcibios_irq_mask;
  72
  73extern void pcibios_irq_init(void);
  74extern void pcibios_fixup_irqs(void);
  75extern void pcibios_enable_irq(struct pci_dev *dev);
  76
  77#endif /* PCI_ASB2305_H */
  78