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Annotation of XNU/iokit/Families/IOPCIBus/IOPCIDevicePPC.cpp, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * The contents of this file constitute Original Code as defined in and
        !             7:  * are subject to the Apple Public Source License Version 1.1 (the
        !             8:  * "License").  You may not use this file except in compliance with the
        !             9:  * License.  Please obtain a copy of the License at
        !            10:  * http://www.apple.com/publicsource and read it before using this file.
        !            11:  * 
        !            12:  * This Original Code and all software distributed under the License are
        !            13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            17:  * License for the specific language governing rights and limitations
        !            18:  * under the License.
        !            19:  * 
        !            20:  * @APPLE_LICENSE_HEADER_END@
        !            21:  */
        !            22: /*
        !            23:  * Copyright (c) 1998 Apple Computer, Inc.  All rights reserved. 
        !            24:  *
        !            25:  * HISTORY
        !            26:  * 23 Nov 98 sdouglas created from objc version.
        !            27:  */
        !            28:  
        !            29: #include <IOKit/system.h>
        !            30: 
        !            31: #include <IOKit/pci/IOPCIBridge.h>
        !            32: #include <IOKit/pci/IOPCIDevice.h>
        !            33: 
        !            34: #include <IOKit/IOLib.h>
        !            35: #include <IOKit/assert.h>
        !            36: 
        !            37: #include <libkern/OSByteOrder.h>
        !            38: #include <libkern/c++/OSContainers.h>
        !            39: 
        !            40: 
        !            41: /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
        !            42: 
        !            43: UInt32 IOPCIDevice::ioRead32( UInt16 offset, IOMemoryMap * map = 0 )
        !            44: {
        !            45:     UInt32     value;
        !            46: 
        !            47:     if( 0 == map) {
        !            48:        map = ioMap;
        !            49:        if( 0 == map)
        !            50:            return( 0 );
        !            51:     }
        !            52: 
        !            53:     value = OSReadSwapInt32( (volatile void *)map->getVirtualAddress(), offset);
        !            54:     eieio();
        !            55: 
        !            56:     return( value );
        !            57: }
        !            58: 
        !            59: UInt16 IOPCIDevice::ioRead16( UInt16 offset, IOMemoryMap * map = 0 )
        !            60: {
        !            61:     UInt16     value;
        !            62: 
        !            63:     if( 0 == map) {
        !            64:        map = ioMap;
        !            65:        if( 0 == map)
        !            66:            return( 0 );
        !            67:     }
        !            68: 
        !            69:     value = OSReadSwapInt16( (volatile void *)map->getVirtualAddress(), offset);
        !            70:     eieio();
        !            71: 
        !            72:     return( value );
        !            73: }
        !            74: 
        !            75: UInt8 IOPCIDevice::ioRead8( UInt16 offset, IOMemoryMap * map = 0 )
        !            76: {
        !            77:     UInt32     value;
        !            78: 
        !            79:     if( 0 == map) {
        !            80:        map = ioMap;
        !            81:        if( 0 == map)
        !            82:            return( 0 );
        !            83:     }
        !            84: 
        !            85:     value = ((volatile UInt8 *) map->getVirtualAddress())[ offset ];
        !            86:     eieio();
        !            87: 
        !            88:     return( value );
        !            89: }
        !            90: 
        !            91: void IOPCIDevice::ioWrite32( UInt16 offset, UInt32 value,
        !            92:                                IOMemoryMap * map = 0 )
        !            93: {
        !            94:     if( 0 == map) {
        !            95:        map = ioMap;
        !            96:        if( 0 == map)
        !            97:            return;
        !            98:     }
        !            99: 
        !           100:     OSWriteSwapInt32( (volatile void *)map->getVirtualAddress(), offset, value);
        !           101:     eieio();
        !           102: }
        !           103: 
        !           104: void IOPCIDevice::ioWrite16( UInt16 offset, UInt16 value,
        !           105:                                IOMemoryMap * map = 0 )
        !           106: {
        !           107:     if( 0 == map) {
        !           108:        map = ioMap;
        !           109:        if( 0 == map)
        !           110:            return;
        !           111:     }
        !           112: 
        !           113:     OSWriteSwapInt16( (volatile void *)map->getVirtualAddress(), offset, value);
        !           114:     eieio();
        !           115: }
        !           116: 
        !           117: void IOPCIDevice::ioWrite8( UInt16 offset, UInt8 value,
        !           118:                                IOMemoryMap * map = 0 )
        !           119: {
        !           120:     if( 0 == map) {
        !           121:        map = ioMap;
        !           122:        if( 0 == map)
        !           123:            return;
        !           124:     }
        !           125: 
        !           126:     ((volatile UInt8 *) map->getVirtualAddress())[ offset ] = value;
        !           127:     eieio();
        !           128: 
        !           129: }
        !           130: 

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