/** @file
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Dci policy
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Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef _DCI_CONFIG_H_
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#define _DCI_CONFIG_H_
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#define DCI_PREMEM_CONFIG_REVISION 2
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extern EFI_GUID gDciPreMemConfigGuid;
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#pragma pack (push,1)
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/**
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This structure contains the policies which are related to Direct Connection Interface (DCI).
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<b>Revision 1:</b>
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- Inital version.
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<b>Revision 2:</b>
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- Deprecate DciAutoDetect
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**/
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typedef struct {
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CONFIG_BLOCK_HEADER Header; ///< Config Block Header
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/**
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DCI enable (HDCIEN bit)
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when Enabled, allow DCI to be enabled. When Disabled, the host control is not enabling DCI feature.
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BIOS provides policy to enable or disable DCI, and user would be able to use BIOS option to change this policy.
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The user changing the setting from disable to enable, is taken as a consent from the user to enable this DCI feature.
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<b>0:Disabled</b>; 1:Enabled
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**/
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UINT32 DciEn : 1;
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/**
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@deprecated from revision 2.
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<b>(Test)</b> When set to Auto detect mode, it detects CCA being connected during BIOS post time.
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This policy only applies when DciEn is disabled.
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NOTE: this policy should not be visible to end customer.
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0: Disable AUTO mode, <b>1: Enable AUTO mode</b>
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**/
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UINT32 DciAutoDetect : 1;
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UINT32 RsvdBits : 30; ///< Reserved bits
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} PCH_DCI_PREMEM_CONFIG;
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#pragma pack (pop)
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#endif // _DCI_CONFIG_H_
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