Hardware/HDD/SSDSandforce.cs
author StephaneLenclud
Fri, 12 Apr 2013 02:30:14 +0200
changeset 395 df649224ba4d
parent 344 3145aadca3d2
permissions -rw-r--r--
Reverting client/server communication around our pipes to fix access denied err.
Now simply opening files for pipes created by SoundGraphAccess server.
     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 using System.Collections.Generic;
    13 using OpenHardwareMonitor.Collections;
    14 
    15 namespace OpenHardwareMonitor.Hardware.HDD {
    16 
    17   [NamePrefix(""), RequireSmart(0xAB), RequireSmart(0xB1)]
    18   internal class SSDSandforce : AbstractHarddrive {
    19 
    20     private static readonly IEnumerable<SmartAttribute> smartAttributes =
    21       new List<SmartAttribute> {
    22       new SmartAttribute(0x01, SmartNames.RawReadErrorRate),
    23       new SmartAttribute(0x05, SmartNames.RetiredBlockCount, RawToInt),
    24       new SmartAttribute(0x09, SmartNames.PowerOnHours, RawToInt),
    25       new SmartAttribute(0x0C, SmartNames.PowerCycleCount, RawToInt),
    26       new SmartAttribute(0xAB, SmartNames.ProgramFailCount, RawToInt),
    27       new SmartAttribute(0xAC, SmartNames.EraseFailCount, RawToInt),
    28       new SmartAttribute(0xAE, SmartNames.UnexpectedPowerLossCount, RawToInt),
    29       new SmartAttribute(0xB1, SmartNames.WearRangeDelta, RawToInt),
    30       new SmartAttribute(0xB5, SmartNames.AlternativeProgramFailCount, RawToInt),
    31       new SmartAttribute(0xB6, SmartNames.AlternativeEraseFailCount, RawToInt),
    32       new SmartAttribute(0xBB, SmartNames.UncorrectableErrorCount, RawToInt),
    33       new SmartAttribute(0xC2, SmartNames.Temperature, 
    34         (byte[] raw, byte value, IReadOnlyArray<IParameter> p) 
    35           => { return value + (p == null ? 0 : p[0].Value); }, 
    36         SensorType.Temperature, 0, true, 
    37         new[] { new ParameterDescription("Offset [°C]", 
    38                   "Temperature offset of the thermal sensor.\n" + 
    39                   "Temperature = Value + Offset.", 0) }), 
    40       new SmartAttribute(0xC3, SmartNames.UnrecoverableEcc), 
    41       new SmartAttribute(0xC4, SmartNames.ReallocationEventCount, RawToInt),
    42       new SmartAttribute(0xE7, SmartNames.RemainingLife, null, 
    43         SensorType.Level, 0),
    44       new SmartAttribute(0xE9, SmartNames.ControllerWritesToNAND, RawToInt,
    45         SensorType.Data, 0),
    46       new SmartAttribute(0xEA, SmartNames.HostWritesToController, RawToInt, 
    47         SensorType.Data, 1),
    48       new SmartAttribute(0xF1, SmartNames.HostWrites, RawToInt, 
    49         SensorType.Data, 1),
    50       new SmartAttribute(0xF2, SmartNames.HostReads, RawToInt, 
    51         SensorType.Data, 2)
    52     };
    53 
    54     private Sensor writeAmplification;
    55 
    56     public SSDSandforce(ISmart smart, string name, string firmwareRevision, 
    57       int index, ISettings settings) 
    58       : base(smart, name, firmwareRevision,  index, smartAttributes, settings) 
    59     {
    60       this.writeAmplification = new Sensor("Write Amplification", 1, 
    61         SensorType.Factor, this, settings);    
    62     }
    63 
    64     public override void UpdateAdditionalSensors(DriveAttributeValue[] values) {
    65       float? controllerWritesToNAND = null;
    66       float? hostWritesToController = null;
    67       foreach (DriveAttributeValue value in values) {
    68         if (value.Identifier == 0xE9)
    69           controllerWritesToNAND = RawToInt(value.RawValue, value.AttrValue, null);
    70 
    71         if (value.Identifier == 0xEA)
    72           hostWritesToController = RawToInt(value.RawValue, value.AttrValue, null);
    73       }
    74       if (controllerWritesToNAND.HasValue && hostWritesToController.HasValue) {
    75         if (hostWritesToController.Value > 0)
    76           writeAmplification.Value =
    77             controllerWritesToNAND.Value / hostWritesToController.Value;
    78         else
    79           writeAmplification.Value = 0;
    80         ActivateSensor(writeAmplification);
    81       }
    82     }
    83   }
    84 }