oshi.hardware.platform.mac.MacUsbDevice Maven / Gradle / Ivy
/*
* Copyright 2016-2022 The OSHI Project Contributors
* SPDX-License-Identifier: MIT
*/
package oshi.hardware.platform.mac;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import com.sun.jna.platform.mac.CoreFoundation;
import com.sun.jna.platform.mac.CoreFoundation.CFIndex;
import com.sun.jna.platform.mac.CoreFoundation.CFMutableDictionaryRef;
import com.sun.jna.platform.mac.CoreFoundation.CFStringRef;
import com.sun.jna.platform.mac.CoreFoundation.CFTypeRef;
import com.sun.jna.platform.mac.IOKit.IOIterator;
import com.sun.jna.platform.mac.IOKit.IORegistryEntry;
import com.sun.jna.platform.mac.IOKitUtil;
import oshi.annotation.concurrent.Immutable;
import oshi.hardware.UsbDevice;
import oshi.hardware.common.AbstractUsbDevice;
/**
* Mac Usb Device
*/
@Immutable
public class MacUsbDevice extends AbstractUsbDevice {
private static final CoreFoundation CF = CoreFoundation.INSTANCE;
private static final String IOUSB = "IOUSB";
private static final String IOSERVICE = "IOService";
public MacUsbDevice(String name, String vendor, String vendorId, String productId, String serialNumber,
String uniqueDeviceId, List connectedDevices) {
super(name, vendor, vendorId, productId, serialNumber, uniqueDeviceId, connectedDevices);
}
/**
* Instantiates a list of {@link oshi.hardware.UsbDevice} objects, representing devices connected via a usb port
* (including internal devices).
*
* If the value of {@code tree} is true, the top level devices returned from this method are the USB Controllers;
* connected hubs and devices in its device tree share that controller's bandwidth. If the value of {@code tree} is
* false, USB devices (not controllers) are listed in a single flat list.
*
* @param tree If true, returns a list of controllers, which requires recursive iteration of connected devices. If
* false, returns a flat list of devices excluding controllers.
* @return a list of {@link oshi.hardware.UsbDevice} objects.
*/
public static List getUsbDevices(boolean tree) {
List devices = getUsbDevices();
if (tree) {
return devices;
}
List deviceList = new ArrayList<>();
// Top level is controllers; they won't be added to the list, but all
// their connected devices will be
for (UsbDevice device : devices) {
addDevicesToList(deviceList, device.getConnectedDevices());
}
return deviceList;
}
private static List getUsbDevices() {
// Maps to store information using RegistryEntryID as the key
Map nameMap = new HashMap<>();
Map vendorMap = new HashMap<>();
Map vendorIdMap = new HashMap<>();
Map productIdMap = new HashMap<>();
Map serialMap = new HashMap<>();
Map> hubMap = new HashMap<>();
List usbControllers = new ArrayList<>();
IORegistryEntry root = IOKitUtil.getRoot();
// Iterate over children of root in the IOUSB plane. This does not include
// controllers so we have to check their parents
IOIterator iter = root.getChildIterator(IOUSB);
if (iter != null) {
// Define keys
CFStringRef locationIDKey = CFStringRef.createCFString("locationID");
CFStringRef ioPropertyMatchKey = CFStringRef.createCFString("IOPropertyMatch");
// Get the device directly under each controller
IORegistryEntry device = iter.next();
while (device != null) {
long id = 0L;
// The parent of this device in IOService plane is the controller
IORegistryEntry controller = device.getParentEntry(IOSERVICE);
if (controller != null) {
// Unique global identifier for this controller
id = controller.getRegistryEntryID();
// Populate other data for the controller
nameMap.put(id, controller.getName());
// The only information we have in registry for this controller is
// the locationID. Use that to search for matching PCI device to obtain
// more information for the controller
CFTypeRef ref = controller.createCFProperty(locationIDKey);
if (ref != null) {
getControllerIdByLocation(id, ref, locationIDKey, ioPropertyMatchKey, vendorIdMap,
productIdMap);
ref.release();
}
controller.release();
}
usbControllers.add(id);
// Now recursively add this device and its children to the maps
// id is the coontroller ID and the first parent ID
addDeviceAndChildrenToMaps(device, id, nameMap, vendorMap, vendorIdMap, productIdMap, serialMap,
hubMap);
device.release();
device = iter.next();
}
locationIDKey.release();
ioPropertyMatchKey.release();
iter.release();
}
root.release();
// Build tree and return
List controllerDevices = new ArrayList<>();
for (Long controller : usbControllers) {
controllerDevices.add(getDeviceAndChildren(controller, "0000", "0000", nameMap, vendorMap, vendorIdMap,
productIdMap, serialMap, hubMap));
}
return controllerDevices;
}
/**
* Recursively populate maps with information from a USB Device and its children
*
* @param device The device which, along with its children, should be added
* @param parentId The id of the device's parent.
* @param nameMap the map of names
* @param vendorMap the map of vendors
* @param vendorIdMap the map of vendorIds
* @param productIdMap the map of productIds
* @param serialMap the map of serial numbers
* @param hubMap the map of hubs
*/
private static void addDeviceAndChildrenToMaps(IORegistryEntry device, long parentId, Map nameMap,
Map vendorMap, Map vendorIdMap, Map productIdMap,
Map serialMap, Map> hubMap) {
// Unique global identifier for this device
long id = device.getRegistryEntryID();
// Store id as a child of parent in hubmap
hubMap.computeIfAbsent(parentId, x -> new ArrayList<>()).add(id);
// Get device name and store in map
nameMap.put(id, device.getName().trim());
// Get vendor and store in map
String vendor = device.getStringProperty("USB Vendor Name");
if (vendor != null) {
vendorMap.put(id, vendor.trim());
}
// Get vendorId and store in map
Long vendorId = device.getLongProperty("idVendor");
if (vendorId != null) {
vendorIdMap.put(id, String.format("%04x", 0xffff & vendorId));
}
// Get productId and store in map
Long productId = device.getLongProperty("idProduct");
if (productId != null) {
productIdMap.put(id, String.format("%04x", 0xffff & productId));
}
// Get serial and store in map
String serial = device.getStringProperty("USB Serial Number");
if (serial != null) {
serialMap.put(id, serial.trim());
}
// Now get this device's children (if any) and recurse
IOIterator childIter = device.getChildIterator(IOUSB);
IORegistryEntry childDevice = childIter.next();
while (childDevice != null) {
addDeviceAndChildrenToMaps(childDevice, id, nameMap, vendorMap, vendorIdMap, productIdMap, serialMap,
hubMap);
childDevice.release();
childDevice = childIter.next();
}
childIter.release();
}
private static void addDevicesToList(List deviceList, List list) {
for (UsbDevice device : list) {
deviceList.add(
new MacUsbDevice(device.getName(), device.getVendor(), device.getVendorId(), device.getProductId(),
device.getSerialNumber(), device.getUniqueDeviceId(), Collections.emptyList()));
addDevicesToList(deviceList, device.getConnectedDevices());
}
}
/**
* Looks up vendor and product id information for a USB Host Controller by cross-referencing the location
*
* @param id The global unique ID for the host controller used as a key for maps
* @param locationId The locationID of this controller returned from the registry
* @param locationIDKey A pointer to the locationID string
* @param ioPropertyMatchKey A pointer to the IOPropertyMatch string
* @param productIdMap the map of productIds
* @param vendorIdMap the map of vendorIds
*/
private static void getControllerIdByLocation(long id, CFTypeRef locationId, CFStringRef locationIDKey,
CFStringRef ioPropertyMatchKey, Map vendorIdMap, Map productIdMap) {
// Create a matching property dictionary from the locationId
CFMutableDictionaryRef propertyDict = CF.CFDictionaryCreateMutable(CF.CFAllocatorGetDefault(), new CFIndex(0),
null, null);
propertyDict.setValue(locationIDKey, locationId);
CFMutableDictionaryRef matchingDict = CF.CFDictionaryCreateMutable(CF.CFAllocatorGetDefault(), new CFIndex(0),
null, null);
matchingDict.setValue(ioPropertyMatchKey, propertyDict);
// search for all IOservices that match the locationID
IOIterator serviceIterator = IOKitUtil.getMatchingServices(matchingDict);
// getMatchingServices releases matchingDict
propertyDict.release();
// Iterate matching services looking for devices whose parents have the
// vendor and device ids
boolean found = false;
if (serviceIterator != null) {
IORegistryEntry matchingService = serviceIterator.next();
while (matchingService != null && !found) {
// Get the parent, which contains the keys we need
IORegistryEntry parent = matchingService.getParentEntry(IOSERVICE);
// look up the vendor-id by key
// vendor-id is a byte array of 4 bytes
if (parent != null) {
byte[] vid = parent.getByteArrayProperty("vendor-id");
if (vid != null && vid.length >= 2) {
vendorIdMap.put(id, String.format("%02x%02x", vid[1], vid[0]));
found = true;
}
// look up the device-id by key
// device-id is a byte array of 4 bytes
byte[] pid = parent.getByteArrayProperty("device-id");
if (pid != null && pid.length >= 2) {
productIdMap.put(id, String.format("%02x%02x", pid[1], pid[0]));
found = true;
}
parent.release();
}
// iterate
matchingService.release();
matchingService = serviceIterator.next();
}
serviceIterator.release();
}
}
/**
* Recursively creates MacUsbDevices by fetching information from maps to populate fields
*
* @param registryEntryId The device unique registry id.
* @param vid The default (parent) vendor ID
* @param pid The default (parent) product ID
* @param nameMap the map of names
* @param vendorMap the map of vendors
* @param vendorIdMap the map of vendorIds
* @param productIdMap the map of productIds
* @param serialMap the map of serial numbers
* @param hubMap the map of hubs
* @return A MacUsbDevice corresponding to this device
*/
private static MacUsbDevice getDeviceAndChildren(Long registryEntryId, String vid, String pid,
Map nameMap, Map vendorMap, Map vendorIdMap,
Map productIdMap, Map serialMap, Map> hubMap) {
String vendorId = vendorIdMap.getOrDefault(registryEntryId, vid);
String productId = productIdMap.getOrDefault(registryEntryId, pid);
List childIds = hubMap.getOrDefault(registryEntryId, new ArrayList<>());
List usbDevices = new ArrayList<>();
for (Long id : childIds) {
usbDevices.add(getDeviceAndChildren(id, vendorId, productId, nameMap, vendorMap, vendorIdMap, productIdMap,
serialMap, hubMap));
}
Collections.sort(usbDevices);
return new MacUsbDevice(nameMap.getOrDefault(registryEntryId, vendorId + ":" + productId),
vendorMap.getOrDefault(registryEntryId, ""), vendorId, productId,
serialMap.getOrDefault(registryEntryId, ""), "0x" + Long.toHexString(registryEntryId), usbDevices);
}
}