Return to IOUSBController_Errata.cpp CVS log

Up to [Apple XNU] / XNU / iokit / Families / IOUSBBus

Annotation of XNU/iokit/Families/IOUSBBus/IOUSBController_Errata.cpp, revision 1.1.1.1

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:  * 08 Dec 98 ehewitt created.
                     27:  *
                     28:  */
                     29: 
                     30: #include <IOKit/system.h>
                     31: 
                     32: 
                     33: #include <IOKit/usb/IOUSBController.h>
                     34: 
                     35: #define super IOUSBBus
                     36: #define self this
                     37: 
                     38: /*
                     39:  This table contains the list of errata that are necessary for known
                     40:  problems with particular silicon.  The format is vendorID, revisionID,
                     41:  lowest revisionID needing errata, highest rev needing errata, errataBits.
                     42:  The result of all matches is ORed together, so more than one entry may
                     43:  match.  Typically for a given errata a list of chips revisions that
                     44:  this applies to is supplied.
                     45:  */
                     46: static ErrataListEntry  errataList[] = {
                     47:     // CMD 670
                     48:     {0x1095, 0x670, 0, 0xffff, kErrataCMDDisableTestMode |
                     49:                                kErrataOnlySinglePageTransfers |
                     50:                                kErrataRetryBufferUnderruns},
                     51:     // Opti 1045
                     52:     {0x1045, 0xc861, 0, 0xffff, kErrataLSHSOpti},
                     53: };
                     54: 
                     55: #define errataListLength (sizeof(errataList)/sizeof(ErrataListEntry))
                     56: 
                     57: UInt32 IOUSBController::GetErrataBits(UInt16 vendorID, UInt16 deviceID, UInt16 revisionID)
                     58: {
                     59:     ErrataListEntry    *entryPtr;
                     60:     UInt32             i, errata = 0;
                     61: 
                     62:     for(i = 0, entryPtr = errataList; i < errataListLength; i++, entryPtr++)
                     63:     {
                     64:         if (vendorID == entryPtr->vendID &&
                     65:             deviceID == entryPtr->deviceID &&
                     66:             revisionID >= entryPtr->revisionLo &&
                     67:             revisionID <= entryPtr->revisionHi)
                     68:         {
                     69:             // we match, add this errata to our list
                     70:             errata |= entryPtr->errata;
                     71:         }
                     72:     }
                     73:     return(errata);
                     74: }       
                     75: 
                     76: 

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.