iokit/Families/IOATAPIDVDDrive/IOATAPIDVDCommand.cpp

   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 #include <IOKit/assert.h>
  24 #include <IOKit/storage/ata/IOATAPIDVDDrive.h>
  25
  26 //---------------------------------------------------------------------------
  27 // SEND KEY command.
  28
  29 IOATACommand *
  30 IOATAPIDVDDrive::atapiCommandSendKey(IOMemoryDescriptor * buffer,
  31                                      const DVDKeyClass    keyClass,
  32                                      const UInt8          agid,
  33                                      const DVDKeyFormat   keyFormat)
  34 {
  35     ATACDBInfo  atapiCmd;
  36
  37         assert(buffer);
  38
  39     // Create the ATAPI packet.
  40         //
  41     bzero(&atapiCmd, sizeof(atapiCmd));
  42
  43     atapiCmd.cdbLength = 12;
  44     atapiCmd.cdb[0]    = kIOATAPICommandSendKey;
  45     atapiCmd.cdb[7]    = keyClass;
  46     atapiCmd.cdb[8]    = (UInt8)(buffer->getLength() >> 8);
  47     atapiCmd.cdb[9]    = (UInt8)(buffer->getLength());
  48     atapiCmd.cdb[10]   = agid << 6 | keyFormat;
  49
  50     return atapiCommand(&atapiCmd, buffer);
  51 }
  52
  53 //---------------------------------------------------------------------------
  54 // REPORT KEY command.
  55
  56 IOATACommand *
  57 IOATAPIDVDDrive::atapiCommandReportKey(IOMemoryDescriptor * buffer,
  58                                        const DVDKeyClass    keyClass,
  59                                        const UInt32         lba,
  60                                        const UInt8          agid,
  61                                        const DVDKeyFormat   keyFormat)
  62 {
  63     ATACDBInfo  atapiCmd;
  64
  65         assert(buffer);
  66
  67     // Create the ATAPI packet.
  68         //
  69     bzero(&atapiCmd, sizeof(atapiCmd));
  70
  71     atapiCmd.cdbLength = 12;
  72     atapiCmd.cdb[0]    = kIOATAPICommandReportKey;
  73
  74     if (keyFormat == kTitleKey) {
  75         atapiCmd.cdb[2] = (UInt8)(lba >> 24);
  76         atapiCmd.cdb[3] = (UInt8)(lba >> 16);
  77         atapiCmd.cdb[4] = (UInt8)(lba >> 8);
  78         atapiCmd.cdb[5] = (UInt8)(lba);
  79     }
  80     atapiCmd.cdb[7]    = keyClass;
  81     atapiCmd.cdb[8]    = (UInt8)(buffer->getLength() >> 8);
  82     atapiCmd.cdb[9]    = (UInt8)(buffer->getLength());
  83     atapiCmd.cdb[10]   = agid << 6 | keyFormat;
  84
  85     return atapiCommand(&atapiCmd, buffer);
  86 }
  87
  88 //---------------------------------------------------------------------------
  89 // GET CONFIGURATION command.
  90
  91 IOATACommand *
  92 IOATAPIDVDDrive::atapiCommandGetConfiguration(IOMemoryDescriptor * buffer,
  93                                               UInt8                rt,
  94                                               UInt16               sfn = 0)
  95 {
  96     ATACDBInfo  atapiCmd;
  97
  98         assert(buffer);
  99
 100     // Create the ATAPI packet.
 101         //
 102     bzero(&atapiCmd, sizeof(atapiCmd));
 103
 104     atapiCmd.cdbLength = 12;
 105     atapiCmd.cdb[0]    = kIOATAPICommandGetConfiguration;
 106     atapiCmd.cdb[1]    = rt & 0x03;
 107     atapiCmd.cdb[2]    = (UInt8)(sfn >> 8);  // starting feature number MSB
 108     atapiCmd.cdb[3]    = (UInt8)(sfn);       // starting feature number LSB
 109     atapiCmd.cdb[7]    = (UInt8)(buffer->getLength() >> 8);
 110     atapiCmd.cdb[8]    = (UInt8)(buffer->getLength());
 111
 112     return atapiCommand(&atapiCmd, buffer);
 113 }
 114
 115 //---------------------------------------------------------------------------
 116 // READ DVD STRUCTURE command.
 117
 118 IOATACommand *
 119 IOATAPIDVDDrive::atapiCommandReadDVDStructure(IOMemoryDescriptor * buffer,
 120                                               UInt8                format,
 121                                               UInt32               address = 0,
 122                                               UInt8                layer   = 0,
 123                                               UInt8                agid    = 0)
 124 {
 125     ATACDBInfo  atapiCmd;
 126
 127         assert(buffer);
 128
 129     // Create the ATAPI packet.
 130         //
 131     bzero(&atapiCmd, sizeof(atapiCmd));
 132
 133     atapiCmd.cdbLength = 12;
 134     atapiCmd.cdb[0]    = kIOATAPICommandReadDVDStructure;
 135     atapiCmd.cdb[2]    = (UInt8)(address >> 24);
 136     atapiCmd.cdb[3]    = (UInt8)(address >> 16);
 137     atapiCmd.cdb[4]    = (UInt8)(address >> 8);
 138     atapiCmd.cdb[5]    = (UInt8)(address);
 139     atapiCmd.cdb[6]    = layer;
 140     atapiCmd.cdb[7]    = format;
 141     atapiCmd.cdb[8]    = (UInt8)(buffer->getLength() >> 8);
 142     atapiCmd.cdb[9]    = (UInt8)(buffer->getLength());
 143     atapiCmd.cdb[10]   = (agid & 0x3) << 6;
 144
 145     return atapiCommand(&atapiCmd, buffer);
 146 }