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 unsigned int pcibios_max_latency;
  35
  36extern void pcibios_resource_survey(void);
  37extern int pcibios_enable_resources(struct pci_dev *dev, int mask);
  38
  39/* pci.c */
  40
  41extern int pcibios_last_bus;
  42extern struct pci_bus *pci_root_bus;
  43extern struct pci_ops *pci_root_ops;
  44
  45extern struct irq_routing_table *pcibios_get_irq_routing_table(void);
  46extern int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
  47
  48/* pci-irq.c */
  49
  50struct irq_info {
  51        u8 bus, devfn;                  /* Bus, device and function */
  52        struct {
  53                u8 link;                /* IRQ line ID, chipset dependent,
  54                                         * 0=not routed */
  55                u16 bitmap;             /* Available IRQs */
  56        } __attribute__((packed)) irq[4];
  57        u8 slot;                        /* Slot number, 0=onboard */
  58        u8 rfu;
  59} __attribute__((packed));
  60
  61struct irq_routing_table {
  62        u32 signature;                  /* PIRQ_SIGNATURE should be here */
  63        u16 version;                    /* PIRQ_VERSION */
  64        u16 size;                       /* Table size in bytes */
  65        u8 rtr_bus, rtr_devfn;          /* Where the interrupt router lies */
  66        u16 exclusive_irqs;             /* IRQs devoted exclusively to PCI usage */
  67        u16 rtr_vendor, rtr_device;     /* Vendor and device ID of interrupt router */
  68        u32 miniport_data;              /* Crap */
  69        u8 rfu[11];
  70        u8 checksum;                    /* Modulo 256 checksum must give zero */
  71        struct irq_info slots[0];
  72} __attribute__((packed));
  73
  74extern unsigned int pcibios_irq_mask;
  75
  76extern void pcibios_irq_init(void);
  77extern void pcibios_fixup_irqs(void);
  78extern void pcibios_enable_irq(struct pci_dev *dev);
  79
  80#endif /* PCI_ASB2305_H */
  81