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Annotation of driverkit/libDriver/ppc/IOPCIDevice.m, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
        !             7:  * Reserved.  This file contains Original Code and/or Modifications of
        !             8:  * Original Code as defined in and that are subject to the Apple Public
        !             9:  * Source License Version 1.1 (the "License").  You may not use this file
        !            10:  * except in compliance with the License.  Please obtain a copy of the
        !            11:  * License at http://www.apple.com/publicsource and read it before using
        !            12:  * this file.
        !            13:  * 
        !            14:  * The Original Code and all software distributed under the License are
        !            15:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            16:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            17:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            18:  * FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT.  Please see the
        !            19:  * License for the specific language governing rights and limitations
        !            20:  * under the License.
        !            21:  * 
        !            22:  * @APPLE_LICENSE_HEADER_END@
        !            23:  */
        !            24:  /*
        !            25:  * Copyright (c) 1997 Apple Computer, Inc.
        !            26:  *
        !            27:  *
        !            28:  * HISTORY
        !            29:  *
        !            30:  * Simon Douglas  22 Oct 97
        !            31:  * - first checked in.
        !            32:  */
        !            33: 
        !            34: 
        !            35: 
        !            36: #define KERNEL_PRIVATE 1
        !            37: 
        !            38: #import <objc/List.h>
        !            39: 
        !            40: #import <driverkit/KernDeviceDescription.h>
        !            41: #import <driverkit/ppc/PPCKernBus.h>
        !            42: 
        !            43: #import <driverkit/ppc/IOPPCDeviceDescription.h>
        !            44: #import <driverkit/ppc/IOPPCDeviceDescriptionPriv.h>
        !            45: #import <driverkit/IODeviceDescriptionPrivate.h>
        !            46: #import <driverkit/ppc/directDevice.h>
        !            47: 
        !            48: #import <machdep/ppc/DeviceTree.h>
        !            49: #import <machdep/ppc/proc_reg.h>
        !            50: #import "IOMacRiscPCI.h"
        !            51: 
        !            52: 
        !            53: struct _pciprivate {
        !            54: 
        !            55:     IOMacRiscPCIBridge *parent;
        !            56: };
        !            57: 
        !            58: 
        !            59: @implementation IOPCIDevice
        !            60: 
        !            61: - initAt:(IOPropertyTable *)propTable parent:_parent ref:ref
        !            62: {
        !            63:     struct _pciprivate *private;
        !            64: 
        !            65:     _dtpciprivate = (void *)IOMalloc(sizeof (struct _pciprivate));
        !            66:     bzero(_dtpciprivate, sizeof (struct _pciprivate));
        !            67: 
        !            68:     private = _dtpciprivate;
        !            69:     private->parent = (IOMacRiscPCIBridge *) _parent;
        !            70: 
        !            71:     return( [super initAt:propTable parent:_parent ref:ref]);
        !            72: }
        !            73: 
        !            74: - (IOReturn) resolveAddressing
        !            75: {
        !            76:     IOReturn   err;
        !            77:     UInt32   *  cells;
        !            78:     UInt32     myCells;
        !            79:     UInt32     propSize;
        !            80: 
        !            81:     myCells = [self addressCells] + [self sizeCells];          // or, 5
        !            82: 
        !            83:     // Same as IODeviceTree, except "reg" is "assigned-addresses"
        !            84:     err = [[self propertyTable] getProperty:"assigned-addresses" flags:kReferenceProperty
        !            85:                 value:(void **) &cells length:&propSize];
        !            86:     if( err == noErr) {
        !            87:        err = [self findMemoryApertures:cells num:(propSize / (4 * myCells))];
        !            88:     } else
        !            89:        err = noErr;
        !            90: 
        !            91:     return( err);
        !            92: }
        !            93: 
        !            94: - (IOReturn) resolveInterrupts
        !            95: {
        !            96:     IOReturn           err;
        !            97:     IOPropertyTable  * propTable = [self propertyTable];
        !            98:     ByteCount          propSize;
        !            99: 
        !           100:     [propTable createProperty:"AAPL,dk_Share IRQ Levels" flags:0
        !           101:                 value:"YES" length:4];
        !           102: 
        !           103:     err = [super resolveInterrupts];
        !           104: 
        !           105:     if( err && (noErr == [propTable getProperty:"interrupts" flags:kReferenceProperty
        !           106:                value:NULL length:&propSize])) {
        !           107:        // inherit & share parent's
        !           108:         IODeviceDescription  * bridge;
        !           109: 
        !           110:         bridge = [[self parent] deviceDescription];
        !           111:        if( bridge) {
        !           112:             err = [self setInterruptList:[bridge interruptList] num:[bridge numInterrupts]];
        !           113:        }
        !           114: 
        !           115:     } else
        !           116:        err = noErr;
        !           117: 
        !           118:     return( err);
        !           119: }
        !           120: 
        !           121: - getResources
        !           122: {
        !           123:     [super getResources];
        !           124: 
        !           125:     [[self parent] getSlotName:self index:deviceNum];
        !           126: 
        !           127:     return( self);
        !           128: }
        !           129: 
        !           130: - (IOReturn) configReadLong:(UInt32)offset value:(UInt32 *)value
        !           131: {
        !           132:     return( [[self parent] configReadLong:self offset:offset value:value] );
        !           133: }
        !           134: 
        !           135: - (IOReturn) configWriteLong:(UInt32)offset value:(UInt32)value
        !           136: {
        !           137:     return( [[self parent] configWriteLong:self offset:offset value:value] );
        !           138: }
        !           139: 
        !           140: - (LogicalAddress) getIOAperture
        !           141: {
        !           142:     return( [[self parent] getIOAperture] );
        !           143: }
        !           144: 
        !           145: - getLocation:(UInt8 *)bus device:(UInt8 *)device function:(UInt8 *)function
        !           146: {
        !           147:     *bus       = busNum;
        !           148:     *device    = deviceNum;
        !           149:     *function  = functionNum;
        !           150:     return( self);
        !           151: }
        !           152: 
        !           153: 
        !           154: - property_IODeviceType:(char *)types length:(unsigned int *)maxLen
        !           155: {
        !           156:     [super property_IODeviceType:types length:maxLen];
        !           157:     strcat( types, " "IOTypePCI);
        !           158:     return( self);
        !           159: }
        !           160: 
        !           161: @end
        !           162: 
        !           163: 

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