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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 436 | giacomo | 1 | /* |
| 2 | * Low-Level PCI Access for i386 machines. |
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| 3 | * |
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| 4 | * (c) 1999 Martin Mares <mj@ucw.cz> |
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| 5 | */ |
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| 6 | |||
| 7 | #undef DEBUG |
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| 8 | |||
| 9 | #ifdef DEBUG |
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| 10 | #define DBG(x...) printk(x) |
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| 11 | #else |
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| 12 | #define DBG(x...) |
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| 13 | #endif |
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| 14 | |||
| 15 | #define PCI_PROBE_BIOS 0x0001 |
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| 16 | #define PCI_PROBE_CONF1 0x0002 |
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| 17 | #define PCI_PROBE_CONF2 0x0004 |
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| 18 | #define PCI_NO_SORT 0x0100 |
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| 19 | #define PCI_BIOS_SORT 0x0200 |
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| 20 | #define PCI_NO_CHECKS 0x0400 |
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| 21 | #define PCI_USE_PIRQ_MASK 0x0800 |
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| 22 | #define PCI_ASSIGN_ROMS 0x1000 |
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| 23 | #define PCI_BIOS_IRQ_SCAN 0x2000 |
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| 24 | #define PCI_ASSIGN_ALL_BUSSES 0x4000 |
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| 25 | #define PCI_NO_ACPI_ROUTING 0x8000 |
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| 26 | |||
| 27 | extern unsigned int pci_probe; |
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| 28 | |||
| 29 | /* pci-i386.c */ |
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| 30 | |||
| 31 | extern unsigned int pcibios_max_latency; |
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| 32 | |||
| 33 | void pcibios_resource_survey(void); |
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| 34 | int pcibios_enable_resources(struct pci_dev *, int); |
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| 35 | |||
| 36 | /* pci-pc.c */ |
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| 37 | |||
| 38 | extern int pcibios_last_bus; |
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| 39 | extern struct pci_bus *pci_root_bus; |
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| 40 | extern struct pci_ops pci_root_ops; |
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| 41 | |||
| 42 | /* pci-irq.c */ |
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| 43 | |||
| 44 | struct irq_info { |
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| 45 | u8 bus, devfn; /* Bus, device and function */ |
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| 46 | struct { |
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| 47 | u8 link; /* IRQ line ID, chipset dependent, 0=not routed */ |
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| 48 | u16 bitmap; /* Available IRQs */ |
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| 49 | } __attribute__((packed)) irq[4]; |
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| 50 | u8 slot; /* Slot number, 0=onboard */ |
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| 51 | u8 rfu; |
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| 52 | } __attribute__((packed)); |
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| 53 | |||
| 54 | struct irq_routing_table { |
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| 55 | u32 signature; /* PIRQ_SIGNATURE should be here */ |
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| 56 | u16 version; /* PIRQ_VERSION */ |
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| 57 | u16 size; /* Table size in bytes */ |
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| 58 | u8 rtr_bus, rtr_devfn; /* Where the interrupt router lies */ |
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| 59 | u16 exclusive_irqs; /* IRQs devoted exclusively to PCI usage */ |
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| 60 | u16 rtr_vendor, rtr_device; /* Vendor and device ID of interrupt router */ |
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| 61 | u32 miniport_data; /* Crap */ |
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| 62 | u8 rfu[11]; |
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| 63 | u8 checksum; /* Modulo 256 checksum must give zero */ |
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| 64 | struct irq_info slots[0]; |
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| 65 | } __attribute__((packed)); |
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| 66 | |||
| 67 | extern unsigned int pcibios_irq_mask; |
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| 68 | |||
| 69 | extern int pcibios_scanned; |
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| 70 | extern spinlock_t pci_config_lock; |
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| 71 | |||
| 72 | int pirq_enable_irq(struct pci_dev *dev); |
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| 73 | |||
| 74 | extern int (*pcibios_enable_irq)(struct pci_dev *dev); |