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); 37 38/* pci.c */ 39 40extern int pcibios_last_bus; 41extern struct pci_bus *pci_root_bus; 42extern struct pci_ops *pci_root_ops; 43 44extern struct irq_routing_table *pcibios_get_irq_routing_table(void); 45extern int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq); 46 47/* pci-irq.c */ 48 49struct 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 60struct 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 73extern unsigned int pcibios_irq_mask; 74 75extern void pcibios_irq_init(void); 76extern void pcibios_fixup_irqs(void); 77extern void pcibios_enable_irq(struct pci_dev *dev); 78 79#endif /* PCI_ASB2305_H */ 80