Error 0x80280802

Value: -2144860158 | 0x80280802 | 2150107138

What does it mean ?

TPM_E_DOING_SELFTEST  
The TPM is currently executing a full selftest.
Value: 2050 | 0x0802 | 0b0000100000000010

Where does it come from ?

FACILITY_INK  
Microsoft Tablet PC
Value: 40 | 0x028 | 0b00101000

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