HddPasswordCommon.h

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#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_