hc
2024-03-22 619f0f87159c5dbd2755b1b0a0eb35784be84e7a
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/** @file
  HDD Password common header file.
 
  Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>
 
  SPDX-License-Identifier: BSD-2-Clause-Patent
 
**/
 
#ifndef _HDD_PASSWORD_COMMON_H_
#define _HDD_PASSWORD_COMMON_H_
 
//
// The payload length of HDD related ATA commands
//
#define HDD_PAYLOAD                     512
 
#define ATA_SECURITY_SET_PASSWORD_CMD   0xF1
#define ATA_SECURITY_UNLOCK_CMD         0xF2
#define ATA_SECURITY_FREEZE_LOCK_CMD    0xF5
#define ATA_SECURITY_DIS_PASSWORD_CMD   0xF6
 
//
// The max retry count specified in ATA 8 spec.
//
#define MAX_HDD_PASSWORD_RETRY_COUNT    5
 
//
// According to ATA spec, the max length of hdd password is 32 bytes
//
#define HDD_PASSWORD_MAX_LENGTH         32
 
#define HDD_PASSWORD_DEVICE_INFO_GUID { 0x96d877ad, 0x48af, 0x4b39, { 0x9b, 0x27, 0x4d, 0x97, 0x43, 0x9, 0xae, 0x47 } }
 
typedef struct {
  UINT8             Bus;
  UINT8             Device;
  UINT8             Function;
  UINT8             Reserved;
  UINT16            Port;
  UINT16            PortMultiplierPort;
} HDD_PASSWORD_DEVICE;
 
//
// It will be used to unlock HDD password for S3.
//
typedef struct {
  HDD_PASSWORD_DEVICE         Device;
  CHAR8                       Password[HDD_PASSWORD_MAX_LENGTH];
  UINT32                      DevicePathLength;
  EFI_DEVICE_PATH_PROTOCOL    DevicePath[];
} HDD_PASSWORD_DEVICE_INFO;
 
#endif // _HDD_PASSWORD_COMMON_H_