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 void pcibios_resource_survey(void); 35 36 /* pci.c */ 37 38 extern int pcibios_last_bus; 39 extern struct pci_bus *pci_root_bus; 40 extern struct pci_ops *pci_root_ops; 41 42 extern struct irq_routing_table *pcibios_get_irq_routing_table(void); 43 extern int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq); 44 45 /* pci-irq.c */ 46 47 struct 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 58 struct 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 71 extern unsigned int pcibios_irq_mask; 72 73 extern void pcibios_irq_init(void); 74 extern void pcibios_fixup_irqs(void); 75 extern void pcibios_enable_irq(struct pci_dev *dev); 76 77 #endif /* PCI_ASB2305_H */ 78