iokit/Families/IOHIDSystem/IOHIDDescriptorParser/HIDProcessMainItem.c

   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         File:           HIDProcessMainItem.c
  24
  25         Contains:       xxx put contents here xxx
  26
  27         Version:        xxx put version here xxx
  28
  29         Copyright:      © 1999 by Apple Computer, Inc., all rights reserved.
  30
  31         File Ownership:
  32
  33                 DRI:                            xxx put dri here xxx
  34
  35                 Other Contact:          xxx put other contact here xxx
  36
  37                 Technology:                     xxx put technology here xxx
  38
  39         Writers:
  40
  41                 (BWS)   Brent Schorsch
  42
  43         Change History (most recent first):
  44
  45           <USB1>          3/5/99        BWS             first checked in
  46 */
  47
  48 #include "HIDLib.h"
  49
  50 /*
  51  *------------------------------------------------------------------------------
  52  *
  53  * HIDProcessMainItem - Process a MainItem
  54  *
  55  *       Input:
  56  *                        ptDescriptor                  - The Descriptor Structure
  57  *                        ptPreparsedData               - The PreParsedData Structure
  58  *       Output:
  59  *                        ptDescriptor                  - The Descriptor Structure
  60  *                        ptPreparsedData               - The PreParsedData Structure
  61  *       Returns:
  62  *                        kHIDSuccess              - Success
  63  *                        kHIDNullPointerErr      - Argument, Pointer was Null
  64  *
  65  *------------------------------------------------------------------------------
  66 */
  67 OSStatus HIDProcessMainItem(HIDReportDescriptor *ptDescriptor,
  68                                                                  HIDPreparsedDataPtr ptPreparsedData)
  69 {
  70         OSStatus iStatus = kHIDSuccess;
  71
  72 /*
  73  *      Disallow NULL Pointers
  74 */
  75         if ((ptDescriptor == NULL) || (ptPreparsedData == NULL))
  76                 return kHIDNullPointerErr;
  77 /*
  78  *      Process by MainItem Tag
  79 */
  80         switch (ptDescriptor->item.tag)
  81         {
  82                 case kHIDTagCollection:
  83                         iStatus = HIDProcessCollection(ptDescriptor,ptPreparsedData);
  84                         break;
  85                 case kHIDTagEndCollection:
  86                         iStatus = HIDProcessEndCollection(ptDescriptor,ptPreparsedData);
  87                         break;
  88                 case kHIDTagInput:
  89                 case kHIDTagOutput:
  90                 case kHIDTagFeature:
  91                         iStatus = HIDProcessReportItem(ptDescriptor,ptPreparsedData);
  92                         break;
  93         }
  94         return iStatus;
  95 }