Hardware/HDD/SSDSandforce.cs
author moel.mich
Tue, 17 Jul 2012 16:10:59 +0000
changeset 364 25ef2c489ce8
parent 343 46b6b567f14f
child 374 ea86cea126bc
permissions -rw-r--r--
Attempt at fixing Issue 253 without breaking Issue 159 once more.
     1 /*
     2  
     3   This Source Code Form is subject to the terms of the Mozilla Public
     4   License, v. 2.0. If a copy of the MPL was not distributed with this
     5   file, You can obtain one at http://mozilla.org/MPL/2.0/.
     6  
     7   Copyright (C) 2009-2012 Michael Möller <mmoeller@openhardwaremonitor.org>
     8 	Copyright (C) 2010 Paul Werelds
     9 	
    10 */
    11 
    12 namespace OpenHardwareMonitor.Hardware.HDD {
    13   using System.Collections.Generic;
    14 
    15   [NamePrefix(""), RequireSmart(0xAB), RequireSmart(0xB1)]
    16   internal class SSDSandforce : AbstractHarddrive {
    17 
    18     private static readonly IEnumerable<SmartAttribute> smartAttributes =
    19       new List<SmartAttribute> {
    20       new SmartAttribute(0x01, SmartNames.RawReadErrorRate),
    21       new SmartAttribute(0x05, SmartNames.RetiredBlockCount, RawToInt),
    22       new SmartAttribute(0x09, SmartNames.PowerOnHours, RawToInt),
    23       new SmartAttribute(0x0C, SmartNames.PowerCycleCount, RawToInt),
    24       new SmartAttribute(0xAB, SmartNames.ProgramFailCount, RawToInt),
    25       new SmartAttribute(0xAC, SmartNames.EraseFailCount, RawToInt),
    26       new SmartAttribute(0xAE, SmartNames.UnexpectedPowerLossCount, RawToInt),
    27       new SmartAttribute(0xB1, SmartNames.WearRangeDelta, RawToInt),
    28       new SmartAttribute(0xB5, SmartNames.AlternativeProgramFailCount, RawToInt),
    29       new SmartAttribute(0xB6, SmartNames.AlternativeEraseFailCount, RawToInt),
    30       new SmartAttribute(0xBB, SmartNames.UncorrectableErrorCount, RawToInt),
    31       new SmartAttribute(0xC2, SmartNames.Temperature, (byte[] raw, byte value) 
    32         => { return value; }, SensorType.Temperature, 0, true), 
    33       new SmartAttribute(0xC3, SmartNames.UnrecoverableEcc), 
    34       new SmartAttribute(0xC4, SmartNames.ReallocationEventCount, RawToInt),
    35       new SmartAttribute(0xE7, SmartNames.RemainingLife, null, 
    36         SensorType.Level, 0),
    37       new SmartAttribute(0xE9, SmartNames.ControllerWritesToNAND, RawToInt,
    38         SensorType.Data, 0),
    39       new SmartAttribute(0xEA, SmartNames.HostWritesToController, RawToInt, 
    40         SensorType.Data, 1),
    41       new SmartAttribute(0xF1, SmartNames.HostWrites, RawToInt, 
    42         SensorType.Data, 1),
    43       new SmartAttribute(0xF2, SmartNames.HostReads, RawToInt, 
    44         SensorType.Data, 2)
    45     };
    46 
    47     private Sensor writeAmplification;
    48 
    49     public SSDSandforce(ISmart smart, string name, string firmwareRevision, 
    50       int index, ISettings settings) 
    51       : base(smart, name, firmwareRevision,  index, smartAttributes, settings) 
    52     {
    53       this.writeAmplification = new Sensor("Write Amplification", 1, 
    54         SensorType.Factor, this, settings);    
    55     }
    56 
    57     public override void UpdateAdditionalSensors(DriveAttributeValue[] values) {
    58       float? controllerWritesToNAND = null;
    59       float? hostWritesToController = null;
    60       foreach (DriveAttributeValue value in values) {
    61         if (value.Identifier == 0xE9)
    62           controllerWritesToNAND = RawToInt(value.RawValue, value.AttrValue);
    63 
    64         if (value.Identifier == 0xEA)
    65           hostWritesToController = RawToInt(value.RawValue, value.AttrValue);
    66       }
    67       if (controllerWritesToNAND.HasValue && hostWritesToController.HasValue) {
    68         if (hostWritesToController.Value > 0)
    69           writeAmplification.Value =
    70             controllerWritesToNAND.Value / hostWritesToController.Value;
    71         else
    72           writeAmplification.Value = 0;
    73         ActivateSensor(writeAmplification);
    74       }
    75     }
    76   }
    77 }