oshi.hardware.platform.linux.LinuxGraphicsCard Maven / Gradle / Ivy
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/*
* Copyright 2020-2022 The OSHI Project Contributors
* SPDX-License-Identifier: MIT
*/
package oshi.hardware.platform.linux;
import java.util.ArrayList;
import java.util.List;
import oshi.annotation.concurrent.Immutable;
import oshi.hardware.GraphicsCard;
import oshi.hardware.common.AbstractGraphicsCard;
import oshi.util.Constants;
import oshi.util.ExecutingCommand;
import oshi.util.ParseUtil;
import oshi.util.tuples.Pair;
/**
* Graphics card info obtained by lshw
*/
@Immutable
final class LinuxGraphicsCard extends AbstractGraphicsCard {
/**
* Constructor for LinuxGraphicsCard
*
* @param name The name
* @param deviceId The device ID
* @param vendor The vendor
* @param versionInfo The version info
* @param vram The VRAM
*/
LinuxGraphicsCard(String name, String deviceId, String vendor, String versionInfo, long vram) {
super(name, deviceId, vendor, versionInfo, vram);
}
/**
* public method used by {@link oshi.hardware.common.AbstractHardwareAbstractionLayer} to access the graphics cards.
*
* @return List of {@link oshi.hardware.platform.linux.LinuxGraphicsCard} objects.
*/
public static List getGraphicsCards() {
List cardList = getGraphicsCardsFromLspci();
if (cardList.isEmpty()) {
cardList = getGraphicsCardsFromLshw();
}
return cardList;
}
// Faster, use as primary
private static List getGraphicsCardsFromLspci() {
List cardList = new ArrayList<>();
// Machine readable version
List lspci = ExecutingCommand.runNative("lspci -vnnm");
String name = Constants.UNKNOWN;
String deviceId = Constants.UNKNOWN;
String vendor = Constants.UNKNOWN;
List versionInfoList = new ArrayList<>();
boolean found = false;
String lookupDevice = null;
for (String line : lspci) {
String[] split = line.trim().split(":", 2);
String prefix = split[0];
// Skip until line contains "VGA"
if (prefix.equals("Class") && line.contains("VGA")) {
found = true;
} else if (prefix.equals("Device") && !found && split.length > 1) {
lookupDevice = split[1].trim();
}
if (found) {
if (split.length < 2) {
// Save previous card
cardList.add(new LinuxGraphicsCard(name, deviceId, vendor,
versionInfoList.isEmpty() ? Constants.UNKNOWN : String.join(", ", versionInfoList),
queryLspciMemorySize(lookupDevice)));
versionInfoList.clear();
found = false;
} else {
if (prefix.equals("Device")) {
Pair pair = ParseUtil.parseLspciMachineReadable(split[1].trim());
if (pair != null) {
name = pair.getA();
deviceId = "0x" + pair.getB();
}
} else if (prefix.equals("Vendor")) {
Pair pair = ParseUtil.parseLspciMachineReadable(split[1].trim());
if (pair != null) {
vendor = pair.getA() + " (0x" + pair.getB() + ")";
} else {
vendor = split[1].trim();
}
} else if (prefix.equals("Rev:")) {
versionInfoList.add(line.trim());
}
}
}
}
// If we haven't yet written the last card do so now
if (found) {
cardList.add(new LinuxGraphicsCard(name, deviceId, vendor,
versionInfoList.isEmpty() ? Constants.UNKNOWN : String.join(", ", versionInfoList),
queryLspciMemorySize(lookupDevice)));
}
return cardList;
}
private static long queryLspciMemorySize(String lookupDevice) {
long vram = 0L;
// Lookup memory
// Human readable version, includes memory
List lspciMem = ExecutingCommand.runNative("lspci -v -s " + lookupDevice);
for (String mem : lspciMem) {
if (mem.contains(" prefetchable")) {
vram += ParseUtil.parseLspciMemorySize(mem);
}
}
return vram;
}
// Slower, use as backup
private static List getGraphicsCardsFromLshw() {
List cardList = new ArrayList<>();
List lshw = ExecutingCommand.runNative("lshw -C display");
String name = Constants.UNKNOWN;
String deviceId = Constants.UNKNOWN;
String vendor = Constants.UNKNOWN;
List versionInfoList = new ArrayList<>();
long vram = 0;
int cardNum = 0;
for (String line : lshw) {
String[] split = line.trim().split(":");
if (split[0].startsWith("*-display")) {
// Save previous card
if (cardNum++ > 0) {
cardList.add(new LinuxGraphicsCard(name, deviceId, vendor,
versionInfoList.isEmpty() ? Constants.UNKNOWN : String.join(", ", versionInfoList), vram));
versionInfoList.clear();
}
} else if (split.length == 2) {
String prefix = split[0];
if (prefix.equals("product")) {
name = split[1].trim();
} else if (prefix.equals("vendor")) {
vendor = split[1].trim();
} else if (prefix.equals("version")) {
versionInfoList.add(line.trim());
} else if (prefix.startsWith("resources")) {
vram = ParseUtil.parseLshwResourceString(split[1].trim());
}
}
}
cardList.add(new LinuxGraphicsCard(name, deviceId, vendor,
versionInfoList.isEmpty() ? Constants.UNKNOWN : String.join(", ", versionInfoList), vram));
return cardList;
}
}