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106 lines
2.2 KiB
106 lines
2.2 KiB
/*++
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Copyright (c) 1991 Microsoft Corporation
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Module Name:
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jazznvr.h
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Abstract:
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This module contains definitions for the Jazz non-volatile ram structures.
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Author:
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David M. Robinson (davidro) 11-Nov-1991
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Revision History:
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--*/
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#ifndef _JAZZNVR_
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#define _JAZZNVR_
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//
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// Define the private configuration packet structure, which contains a
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// configuration component as well as pointers to the component's parent,
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// peer, child, and configuration data.
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//
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typedef struct _CONFIGURATION_PACKET {
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CONFIGURATION_COMPONENT Component;
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struct _CONFIGURATION_PACKET *Parent;
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struct _CONFIGURATION_PACKET *Peer;
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struct _CONFIGURATION_PACKET *Child;
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PVOID ConfigurationData;
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} CONFIGURATION_PACKET, *PCONFIGURATION_PACKET;
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//
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// The compressed configuration packet structure used to store configuration
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// data in NVRAM.
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//
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typedef struct _COMPRESSED_CONFIGURATION_PACKET {
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UCHAR Parent;
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UCHAR Class;
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UCHAR Type;
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UCHAR Flags;
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ULONG Key;
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USHORT Version;
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USHORT ConfigurationDataLength;
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USHORT Identifier;
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USHORT ConfigurationData;
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} COMPRESSED_CONFIGURATION_PACKET, *PCOMPRESSED_CONFIGURATION_PACKET;
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//
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// Defines for Identifier index.
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//
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#define NO_CONFIGURATION_IDENTIFIER 0xFFFF
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//
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// Defines for the volatile and non-volatile configuration tables.
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//
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#define NUMBER_OF_ENTRIES 32
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#define LENGTH_OF_IDENTIFIER 504
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#define LENGTH_OF_DATA 2048
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#define LENGTH_OF_ENVIRONMENT 1024
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#define MAXIMUM_ENVIRONMENT_VALUE 128
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//
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// The volatile configuration table structure.
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//
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typedef struct _CONFIGURATION {
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CONFIGURATION_PACKET Packet[NUMBER_OF_ENTRIES];
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UCHAR Identifier[LENGTH_OF_IDENTIFIER];
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UCHAR Data[LENGTH_OF_DATA];
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} CONFIGURATION, *PCONFIGURATION;
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//
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// The non-volatile configuration table structure.
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//
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typedef struct _NV_CONFIGURATION {
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COMPRESSED_CONFIGURATION_PACKET Packet[NUMBER_OF_ENTRIES];
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UCHAR Identifier[LENGTH_OF_IDENTIFIER];
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UCHAR Data[LENGTH_OF_DATA];
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UCHAR Checksum1[4];
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UCHAR Environment[LENGTH_OF_ENVIRONMENT];
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UCHAR Checksum2[4];
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} NV_CONFIGURATION, *PNV_CONFIGURATION;
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//
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// Non-volatile ram layout.
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//
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#if defined(MIPS)
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#define NVRAM_CONFIGURATION NVRAM_VIRTUAL_BASE
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#define NVRAM_SYSTEM_ID NVRAM_VIRTUAL_BASE + 0x00002000
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#endif
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#endif // _JAZZNVR_
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