/* * pci.h * * PCI defines and function prototypes * Copyright 1994, Drew Eckhardt * Copyright 1997--1999 Martin Mares <mj@ucw.cz> * * For more information, please consult the following manuals (look at * http://www.pcisig.com/ for how to get them): * * PCI BIOS Specification * PCI Local Bus Specification * PCI to PCI Bridge Specification * PCI System Design Guide */#ifndef LINUX_PCI_H#define LINUX_PCI_H#include <linux/pci_regs.h>/* The pci register defines *//* * The PCI interface treats multi-function devices as independent * devices. The slot/function address of each device is encoded * in a single byte as follows: * * 7:3 = slot * 2:0 = function */#define PCI_DEVFN(slot, func) ((((slot) & 0x1f) << 3) | ((func) & 0x07))#define PCI_SLOT(devfn) (((devfn) >> 3) & 0x1f)#define PCI_FUNC(devfn) ((devfn) & 0x07)/* Ioctls for /proc/bus/pci/X/Y nodes. */#define PCIIOC_BASE ('P' << 24 |'C' << 16 |'I' << 8)#define PCIIOC_CONTROLLER (PCIIOC_BASE | 0x00)/* Get controller for PCI device. */#define PCIIOC_MMAP_IS_IO (PCIIOC_BASE | 0x01)/* Set mmap state to I/O space. */#define PCIIOC_MMAP_IS_MEM (PCIIOC_BASE | 0x02)/* Set mmap state to MEM space. */#define PCIIOC_WRITE_COMBINE (PCIIOC_BASE | 0x03)/* Enable/disable write-comb
