moel@324: /*
moel@324:  
moel@344:   This Source Code Form is subject to the terms of the Mozilla Public
moel@344:   License, v. 2.0. If a copy of the MPL was not distributed with this
moel@344:   file, You can obtain one at http://mozilla.org/MPL/2.0/.
moel@324:  
moel@344:   Copyright (C) 2009-2012 Michael Möller <mmoeller@openhardwaremonitor.org>
moel@344: 	Copyright (C) 2010 Paul Werelds
moel@344: 	
moel@324: */
moel@324: 
moel@374: using System.Collections.Generic;
moel@374: using OpenHardwareMonitor.Collections;
moel@374: 
moel@324: namespace OpenHardwareMonitor.Hardware.HDD {
moel@324: 
moel@338:   [NamePrefix(""), RequireSmart(0xAB), RequireSmart(0xB1)]
moel@324:   internal class SSDSandforce : AbstractHarddrive {
moel@324: 
moel@324:     private static readonly IEnumerable<SmartAttribute> smartAttributes =
moel@324:       new List<SmartAttribute> {
moel@339:       new SmartAttribute(0x01, SmartNames.RawReadErrorRate),
moel@339:       new SmartAttribute(0x05, SmartNames.RetiredBlockCount, RawToInt),
moel@328:       new SmartAttribute(0x09, SmartNames.PowerOnHours, RawToInt),
moel@328:       new SmartAttribute(0x0C, SmartNames.PowerCycleCount, RawToInt),
moel@339:       new SmartAttribute(0xAB, SmartNames.ProgramFailCount, RawToInt),
moel@339:       new SmartAttribute(0xAC, SmartNames.EraseFailCount, RawToInt),
moel@339:       new SmartAttribute(0xAE, SmartNames.UnexpectedPowerLossCount, RawToInt),
moel@339:       new SmartAttribute(0xB1, SmartNames.WearRangeDelta, RawToInt),
moel@339:       new SmartAttribute(0xB5, SmartNames.AlternativeProgramFailCount, RawToInt),
moel@339:       new SmartAttribute(0xB6, SmartNames.AlternativeEraseFailCount, RawToInt),
moel@339:       new SmartAttribute(0xBB, SmartNames.UncorrectableErrorCount, RawToInt),
moel@374:       new SmartAttribute(0xC2, SmartNames.Temperature, 
moel@374:         (byte[] raw, byte value, IReadOnlyArray<IParameter> p) 
moel@374:           => { return value + (p == null ? 0 : p[0].Value); }, 
moel@374:         SensorType.Temperature, 0, true, 
moel@374:         new[] { new ParameterDescription("Offset [°C]", 
moel@374:                   "Temperature offset of the thermal sensor.\n" + 
moel@374:                   "Temperature = Value + Offset.", 0) }), 
moel@328:       new SmartAttribute(0xC3, SmartNames.UnrecoverableEcc), 
moel@339:       new SmartAttribute(0xC4, SmartNames.ReallocationEventCount, RawToInt),
moel@339:       new SmartAttribute(0xE7, SmartNames.RemainingLife, null, 
moel@339:         SensorType.Level, 0),
moel@339:       new SmartAttribute(0xE9, SmartNames.ControllerWritesToNAND, RawToInt,
moel@324:         SensorType.Data, 0),
moel@339:       new SmartAttribute(0xEA, SmartNames.HostWritesToController, RawToInt, 
moel@339:         SensorType.Data, 1),
moel@339:       new SmartAttribute(0xF1, SmartNames.HostWrites, RawToInt, 
moel@339:         SensorType.Data, 1),
moel@339:       new SmartAttribute(0xF2, SmartNames.HostReads, RawToInt, 
moel@339:         SensorType.Data, 2)
moel@324:     };
moel@324: 
moel@339:     private Sensor writeAmplification;
moel@339: 
moel@325:     public SSDSandforce(ISmart smart, string name, string firmwareRevision, 
moel@325:       int index, ISettings settings) 
moel@325:       : base(smart, name, firmwareRevision,  index, smartAttributes, settings) 
moel@339:     {
moel@339:       this.writeAmplification = new Sensor("Write Amplification", 1, 
moel@340:         SensorType.Factor, this, settings);    
moel@339:     }
moel@339: 
moel@339:     public override void UpdateAdditionalSensors(DriveAttributeValue[] values) {
moel@339:       float? controllerWritesToNAND = null;
moel@339:       float? hostWritesToController = null;
moel@339:       foreach (DriveAttributeValue value in values) {
moel@339:         if (value.Identifier == 0xE9)
moel@374:           controllerWritesToNAND = RawToInt(value.RawValue, value.AttrValue, null);
moel@339: 
moel@339:         if (value.Identifier == 0xEA)
moel@374:           hostWritesToController = RawToInt(value.RawValue, value.AttrValue, null);
moel@339:       }
moel@339:       if (controllerWritesToNAND.HasValue && hostWritesToController.HasValue) {
moel@343:         if (hostWritesToController.Value > 0)
moel@343:           writeAmplification.Value =
moel@343:             controllerWritesToNAND.Value / hostWritesToController.Value;
moel@343:         else
moel@343:           writeAmplification.Value = 0;
moel@339:         ActivateSensor(writeAmplification);
moel@339:       }
moel@339:     }
moel@324:   }
moel@324: }