128 lines
3.0 KiB
Java
128 lines
3.0 KiB
Java
/*
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* SpeedDescriptor.java
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*
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* Copyright (c) 2007 Vreixo Formoso
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*
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* This library is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* See COPYING file for details.
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*/
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package org.pykix.libburnia.libburn;
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/**
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* Description of a speed capability as reported by the drive in conjunction
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* with eventually loaded media. There can be more than one such object per
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* drive.
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*
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* <p>
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* This list is set up by {@link Burn#scan()} and gets updated by
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* {@link Drive#grab(boolean)}. A copy may be obtained by
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* burn_drive_get_speedlist().
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*
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* <p>
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* For technical background info see SCSI specs MMC and SPC:
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* mode page 2Ah (from SPC 5Ah MODE SENSE) , mmc3r10g.pdf , 6.3.11 Table 364
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* ACh GET PERFORMANCE, Type 03h , mmc5r03c.pdf , 6.8.5.3 Table 312
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*
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* @author Vreixo Formoso
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* @since 0.1
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*/
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public class SpeedDescriptor {
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private int source;
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private Profile profile;
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private int endlba;
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private int writeSpeed;
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private int readSpeed;
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private int wrc;
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private boolean exact;
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private boolean mrw;
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/* to be called from JNI code */
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SpeedDescriptor(int source, short profile, int endlba, int writeSpeed,
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int readSpeed, int wrc, boolean exact, boolean mrw) {
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super();
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this.source = source;
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this.profile = Profile.get(profile == -1 ? 0 : profile);
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this.endlba = endlba;
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this.writeSpeed = writeSpeed;
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this.readSpeed = readSpeed;
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this.wrc = wrc;
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this.exact = exact;
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this.mrw = mrw;
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}
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/**
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* The attributed capacity of appropriate media in logical block units
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* i.e. 2352 raw bytes or 2048 data bytes. -1 = capacity unknown.
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*/
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public int getEndlba() {
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return endlba;
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}
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/**
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* <code>true</code> if drive promises reported performance over full
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* media.
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*/
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public boolean isExact() {
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return exact;
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}
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/**
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* <code>true</code> if suitable for mixture of read and write
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*/
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public boolean isMrw() {
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return mrw;
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}
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/**
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* The media type that was current at the time of report.
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*
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* @return
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* Same as {@link Drive#getProfile()}, {@link Profile#NONE} if
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* no media was loaded.
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*/
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public Profile getProfile() {
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return profile;
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}
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/**
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* Read speed is given in 1000 bytes/s , 0 = invalid. The numbers
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* are supposed to be usable with {@link Drive#setSpeed(int, int)}
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*/
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public int getReadSpeed() {
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return readSpeed;
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}
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/**
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* Get where this info comes from.
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*
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* @return
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* 0 = misc , 1 = mode page 2Ah , 2 = ACh GET PERFORMANCE
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*/
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public int getSource() {
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return source;
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}
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/**
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* Expert info from ACh GET PERFORMANCE and/or mode page 2Ah.
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* Expect values other than 0 or 1 to get a meaning in future.
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* Rotational control: 0 = CLV/default , 1 = CAV
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*/
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public int getWrc() {
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return wrc;
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}
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/**
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* Write speed is given in 1000 bytes/s , 0 = invalid. The numbers
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* are supposed to be usable with {@link Drive#setSpeed(int, int)}
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*/
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public int getWriteSpeed() {
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return writeSpeed;
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}
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}
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