85 lines
2.1 KiB
C
85 lines
2.1 KiB
C
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/*++
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Copyright (c) 1993 Microsoft Corporation
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Module Name:
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scsi.h
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Abstract:
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This is a subset of the header file for SCSI definitions that is
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located in the kernel tree.
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Authors:
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Mike Glass (mglass)
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Revision History:
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--*/
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//
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// Inquiry buffer structure. This is the data returned from the target
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// after it receives an inquiry.
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//
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// This structure may be extended by the number of bytes specified
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// in the field AdditionalLength. The defined size constant only
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// includes fields through ProductRevisionLevel.
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//
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// The NT SCSI drivers are only interested in the first 36 bytes of data.
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//
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#define INQUIRYDATABUFFERSIZE 36
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typedef struct _INQUIRYDATA {
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UCHAR DeviceType : 5;
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UCHAR DeviceTypeQualifier : 3;
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UCHAR DeviceTypeModifier : 7;
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UCHAR RemovableMedia : 1;
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UCHAR Versions;
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UCHAR ResponseDataFormat;
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UCHAR AdditionalLength;
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UCHAR Reserved[2];
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UCHAR SoftReset : 1;
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UCHAR CommandQueue : 1;
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UCHAR Reserved2 : 1;
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UCHAR LinkedCommands : 1;
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UCHAR Synchronous : 1;
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UCHAR Wide16Bit : 1;
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UCHAR Wide32Bit : 1;
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UCHAR RelativeAddressing : 1;
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UCHAR VendorId[8];
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UCHAR ProductId[16];
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UCHAR ProductRevisionLevel[4];
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UCHAR VendorSpecific[20];
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UCHAR Reserved3[40];
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} INQUIRYDATA, *PINQUIRYDATA;
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//
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// Inquiry defines. Used to interpret data returned from target as result
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// of inquiry command.
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//
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// DeviceType field
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//
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#define DIRECT_ACCESS_DEVICE 0x00 // disks
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#define SEQUENTIAL_ACCESS_DEVICE 0x01 // tapes
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#define PRINTER_DEVICE 0x02 // printers
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#define PROCESSOR_DEVICE 0x03 // scanners, printers, etc
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#define WRITE_ONCE_READ_MULTIPLE_DEVICE 0x04 // worms
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#define READ_ONLY_DIRECT_ACCESS_DEVICE 0x05 // cdroms
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#define SCANNER_DEVICE 0x06 // scanners
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#define OPTICAL_DEVICE 0x07 // optical disks
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#define MEDIUM_CHANGER 0x08 // jukebox
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#define COMMUNICATION_DEVICE 0x09 // network
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#define LOGICAL_UNIT_NOT_PRESENT_DEVICE 0x7F
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#define DEVICE_QUALIFIER_NOT_SUPPORTED 0x03
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//
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// DeviceTypeQualifier field
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//
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#define DEVICE_CONNECTED 0x00
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