IOPCIDeviceI386.cpp   [plain text]

/*
 * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */

#if defined(__i386__) || defined(__x86_64__)

#include <IOKit/system.h>

#include <IOKit/pci/IOPCIBridge.h>
#include <IOKit/pci/IOPCIDevice.h>
#include <IOKit/IOLib.h>
#include <IOKit/assert.h>
#include <libkern/c++/OSContainers.h>

#include <architecture/i386/pio.h>

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

UInt32 IOPCIDevice::ioRead32( UInt16 offset, IOMemoryMap * map )
{
    UInt32      value;

    if (0 == map)
        map = ioMap;

    /*
     * getPhysicalAddress() can block on a mutex. Since I/O memory
     * ranges behaves identity mapped, switch to getVirtualAddress().
     */
    value = inl( map->getVirtualAddress() + offset );

    return (value);
}

UInt16 IOPCIDevice::ioRead16( UInt16 offset, IOMemoryMap * map )
{
    UInt16      value;

    if (0 == map)
        map = ioMap;

    value = inw( map->getVirtualAddress() + offset );

    return (value);
}

UInt8 IOPCIDevice::ioRead8( UInt16 offset, IOMemoryMap * map )
{
    UInt32      value;

    if (0 == map)
        map = ioMap;

    value = inb( map->getVirtualAddress() + offset );

    return (value);
}

void IOPCIDevice::ioWrite32( UInt16 offset, UInt32 value,
                             IOMemoryMap * map )
{
    if (0 == map)
        map = ioMap;

    outl( map->getVirtualAddress() + offset, value );
}

void IOPCIDevice::ioWrite16( UInt16 offset, UInt16 value,
                             IOMemoryMap * map )
{
    if (0 == map)
        map = ioMap;

    outw( map->getVirtualAddress() + offset, value );
}

void IOPCIDevice::ioWrite8( UInt16 offset, UInt8 value,
                            IOMemoryMap * map )
{
    if (0 == map)
        map = ioMap;

    outb( map->getVirtualAddress() + offset, value );
}


#endif // __i386__