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 extern int pcibios_enable_resources(struct pci_dev *dev, int mask); 38 39 /* pci.c */ 40 41 extern int pcibios_last_bus; 42 extern struct pci_bus *pci_root_bus; 43 extern struct pci_ops *pci_root_ops; 44 45 extern struct irq_routing_table *pcibios_get_irq_routing_table(void); 46 extern int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq); 47 48 /* pci-irq.c */ 49 50 struct 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 61 struct 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 74 extern unsigned int pcibios_irq_mask; 75 76 extern void pcibios_irq_init(void); 77 extern void pcibios_fixup_irqs(void); 78 extern void pcibios_enable_irq(struct pci_dev *dev); 79 80 #endif /* PCI_ASB2305_H */ 81