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
  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);
  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 */