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 extern unsigned int pci_probe; 24 25 /* pci-asb2305.c */ 26 27 extern void pcibios_resource_survey(void); 28 29 /* pci.c */ 30 31 extern struct pci_ops *pci_root_ops; 32 33 extern struct irq_routing_table *pcibios_get_irq_routing_table(void); 34 extern int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq); 35 36 /* pci-irq.c */ 37 38 struct irq_info { 39 u8 bus, devfn; /* Bus, device and function */ 40 struct { 41 u8 link; /* IRQ line ID, chipset dependent, 42 * 0=not routed */ 43 u16 bitmap; /* Available IRQs */ 44 } __attribute__((packed)) irq[4]; 45 u8 slot; /* Slot number, 0=onboard */ 46 u8 rfu; 47 } __attribute__((packed)); 48 49 struct irq_routing_table { 50 u32 signature; /* PIRQ_SIGNATURE should be here */ 51 u16 version; /* PIRQ_VERSION */ 52 u16 size; /* Table size in bytes */ 53 u8 rtr_bus, rtr_devfn; /* Where the interrupt router lies */ 54 u16 exclusive_irqs; /* IRQs devoted exclusively to PCI usage */ 55 u16 rtr_vendor, rtr_device; /* Vendor and device ID of interrupt router */ 56 u32 miniport_data; /* Crap */ 57 u8 rfu[11]; 58 u8 checksum; /* Modulo 256 checksum must give zero */ 59 struct irq_info slots[0]; 60 } __attribute__((packed)); 61 62 extern unsigned int pcibios_irq_mask; 63 64 extern void pcibios_irq_init(void); 65 extern void pcibios_fixup_irqs(void); 66 extern void pcibios_enable_irq(struct pci_dev *dev); 67 68 #endif /* PCI_ASB2305_H */ 69