/*
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/*
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* Java libusb wrapper
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* Java libusb wrapper
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* Copyright (c) 2005-2006 Andreas Schläpfer <spandi at users.sourceforge.net>
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* Copyright (c) 2005-2006 Andreas Schläpfer <spandi at users.sourceforge.net>
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*
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*
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* http://libusbjava.sourceforge.net
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* http://libusbjava.sourceforge.net
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* This library is covered by the LGPL, read LGPL.txt for details.
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* This library is covered by the LGPL, read LGPL.txt for details.
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*/
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*/
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package ch.ntb.usb;
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package ch.ntb.usb;
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/**
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/**
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* This class represents the Java Native Interface to the shared library which
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* This class represents the Java Native Interface to the shared library which
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* is (with some exceptions) a one-to-one representation of the libusb API.<br>
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* is (with some exceptions) a one-to-one representation of the libusb API.<br>
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* <br>
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* <br>
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* <h1>Project Description</h1>
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* <h1>Project Description</h1>
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* Java libusb is a Java wrapper for the libusb and libusb-win32 USB library.
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* Java libusb is a Java wrapper for the libusb and libusb-win32 USB library.
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*
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*
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* <a href="http://libusb.sourceforge.net/">libusb</a> aim is to create a
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* <a href="http://libusb.sourceforge.net/">libusb</a> aim is to create a
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* library for use by user level applications to access USB devices regardless
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* library for use by user level applications to access USB devices regardless
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* of OS.<br>
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* of OS.<br>
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* <a href="http://libusb-win32.sourceforge.net/">Libusb-win32</a> is a port of
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* <a href="http://libusb-win32.sourceforge.net/">Libusb-win32</a> is a port of
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* the USB library <a href="http://libusb.sourceforge.net/">libusb</a> to the
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* the USB library <a href="http://libusb.sourceforge.net/">libusb</a> to the
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* Windows operating systems. The library allows user space applications to
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* Windows operating systems. The library allows user space applications to
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* access any USB device on Windows in a generic way without writing any line of
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* access any USB device on Windows in a generic way without writing any line of
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* kernel driver code.<br>
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* kernel driver code.<br>
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* <br>
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* <br>
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* The API description of this class has been copied from the <a
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* The API description of this class has been copied from the <a
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* href="http://libusb.sourceforge.net/documentation.html">libusb documentation</a>
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* href="http://libusb.sourceforge.net/documentation.html">libusb documentation</a>
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* and adapted where neccessary.<br>
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* and adapted where neccessary.<br>
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*
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*
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*/
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*/
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public class LibusbJava {
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public class LibusbJava {
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/**
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/**
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* System error codes.<br>
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* System error codes.<br>
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* This list is not complete! For more error codes see the file 'errorno.h'
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* This list is not complete! For more error codes see the file 'errorno.h'
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* on your system.
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* on your system.
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*/
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*/
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public static int ERROR_SUCCESS, ERROR_BAD_FILE_DESCRIPTOR,
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public static int ERROR_SUCCESS, ERROR_BAD_FILE_DESCRIPTOR,
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ERROR_NO_SUCH_DEVICE_OR_ADDRESS, ERROR_BUSY,
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ERROR_NO_SUCH_DEVICE_OR_ADDRESS, ERROR_BUSY,
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ERROR_INVALID_PARAMETER, ERROR_TIMEDOUT, ERROR_IO_ERROR,
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ERROR_INVALID_PARAMETER, ERROR_TIMEDOUT, ERROR_IO_ERROR,
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ERROR_NOT_ENOUGH_MEMORY;;
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ERROR_NOT_ENOUGH_MEMORY;;
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/**
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/**
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* Sets the debugging level of libusb.<br>
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* Sets the debugging level of libusb.<br>
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*
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*
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* The range is from 0 to 255, where 0 disables debug output and 255 enables
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* The range is from 0 to 255, where 0 disables debug output and 255 enables
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* all output. On application start, debugging is disabled (0).
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* all output. On application start, debugging is disabled (0).
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*
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*
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* @param level
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* @param level
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* 0 to 255
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* 0 to 255
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*/
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*/
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public static native void usb_set_debug(int level);
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public static native void usb_set_debug(int level);
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// Core
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// Core
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/**
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/**
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* Just like the name implies, <code>usb_init</code> sets up some internal
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* Just like the name implies, <code>usb_init</code> sets up some internal
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* structures. <code>usb_init</code> must be called before any other
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* structures. <code>usb_init</code> must be called before any other
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* libusb functions.
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* libusb functions.
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*/
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*/
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public static native void usb_init();
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public static native void usb_init();
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/**
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/**
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* <code>usb_find_busses</code> will find all of the busses on the system.
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* <code>usb_find_busses</code> will find all of the busses on the system.
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*
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*
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* @return the number of changes since previous call to this function (total
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* @return the number of changes since previous call to this function (total
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* of new busses and busses removed).
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* of new busses and busses removed).
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*/
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*/
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public static native int usb_find_busses();
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public static native int usb_find_busses();
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/**
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/**
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* <code>usb_find_devices</code> will find all of the devices on each bus.
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* <code>usb_find_devices</code> will find all of the devices on each bus.
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* This should be called after <code>usb_find_busses</code>.
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* This should be called after <code>usb_find_busses</code>.
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*
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*
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* @return the number of changes since the previous call to this function
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* @return the number of changes since the previous call to this function
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* (total of new device and devices removed).
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* (total of new device and devices removed).
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*/
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*/
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public static native int usb_find_devices();
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public static native int usb_find_devices();
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/**
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/**
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* <code>usb_get_busses</code> returns a tree of descriptor objects.<br>
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* <code>usb_get_busses</code> returns a tree of descriptor objects.<br>
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* The tree represents the bus structure with devices, configurations,
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* The tree represents the bus structure with devices, configurations,
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* interfaces and endpoints. Note that this is only a copy. To refresh the
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* interfaces and endpoints. Note that this is only a copy. To refresh the
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* information, <code>usb_get_busses()</code> must be called again.<br>
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* information, <code>usb_get_busses()</code> must be called again.<br>
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* The name of the objects contained in the tree is starting with
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* The name of the objects contained in the tree is starting with
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* <code>Usb_</code>.
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* <code>Usb_</code>.
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*
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*
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* @return the structure of all busses and devices. <code>Note:</code> The
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* @return the structure of all busses and devices. <code>Note:</code> The
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* java objects are copies of the C structs.
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* java objects are copies of the C structs.
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*/
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*/
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public static native Usb_Bus usb_get_busses();
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public static native Usb_Bus usb_get_busses();
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// Device Operations
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// Device Operations
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/**
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/**
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* <code>usb_open</code> is to be used to open up a device for use.
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* <code>usb_open</code> is to be used to open up a device for use.
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* <code>usb_open</code> must be called before attempting to perform any
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* <code>usb_open</code> must be called before attempting to perform any
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* operations to the device.
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* operations to the device.
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*
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*
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* @param dev
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* @param dev
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* The device to open.
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* The device to open.
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* @return a handle used in future communication with the device. 0 if an
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* @return a handle used in future communication with the device. 0 if an
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* error has occurred.
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* error has occurred.
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*/
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*/
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public static native long usb_open(Usb_Device dev);
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public static native long usb_open(Usb_Device dev);
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/**
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/**
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* <code>usb_close</code> closes a device opened with
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* <code>usb_close</code> closes a device opened with
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* <code>usb_open</code>.
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* <code>usb_open</code>.
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*
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*
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* @param dev_handle
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* @param dev_handle
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* The handle to the device.
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* The handle to the device.
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* @return 0 on success or < 0 on error.
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* @return 0 on success or < 0 on error.
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*/
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*/
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public static native int usb_close(long dev_handle);
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public static native int usb_close(long dev_handle);
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/**
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/**
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* Sets the active configuration of a device
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* Sets the active configuration of a device
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*
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*
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* @param dev_handle
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* @param dev_handle
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* The handle to the device.
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* The handle to the device.
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* @param configuration
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* @param configuration
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* The value as specified in the descriptor field
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* The value as specified in the descriptor field
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* bConfigurationValue.
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* bConfigurationValue.
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* @return 0 on success or < 0 on error.
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* @return 0 on success or < 0 on error.
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*/
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*/
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public static native int usb_set_configuration(long dev_handle,
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public static native int usb_set_configuration(long dev_handle,
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int configuration);
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int configuration);
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/**
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/**
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* Sets the active alternate setting of the current interface
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* Sets the active alternate setting of the current interface
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*
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*
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* @param dev_handle
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* @param dev_handle
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* The handle to the device.
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* The handle to the device.
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* @param alternate
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* @param alternate
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* The value as specified in the descriptor field
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* The value as specified in the descriptor field
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* bAlternateSetting.
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* bAlternateSetting.
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* @return 0 on success or < 0 on error.
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* @return 0 on success or < 0 on error.
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*/
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*/
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public static native int usb_set_altinterface(long dev_handle, int alternate);
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public static native int usb_set_altinterface(long dev_handle, int alternate);
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/**
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/**
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* Clears any halt status on an endpoint.
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* Clears any halt status on an endpoint.
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*
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*
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* @param dev_handle
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* @param dev_handle
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* The handle to the device.
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* The handle to the device.
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* @param ep
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* @param ep
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* The value specified in the descriptor field bEndpointAddress.
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* The value specified in the descriptor field bEndpointAddress.
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* @return 0 on success or < 0 on error.
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* @return 0 on success or < 0 on error.
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*/
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*/
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public static native int usb_clear_halt(long dev_handle, int ep);
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public static native int usb_clear_halt(long dev_handle, int ep);
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/**
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/**
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* Resets a device by sending a RESET down the port it is connected to.<br>
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* Resets a device by sending a RESET down the port it is connected to.<br>
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* <br>
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* <br>
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* <b>Causes re-enumeration:</b> After calling <code>usb_reset</code>,
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* <b>Causes re-enumeration:</b> After calling <code>usb_reset</code>,
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* the device will need to re-enumerate and thusly, requires you to find the
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* the device will need to re-enumerate and thusly, requires you to find the
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* new device and open a new handle. The handle used to call
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* new device and open a new handle. The handle used to call
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* <code>usb_reset</code> will no longer work.
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* <code>usb_reset</code> will no longer work.
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*
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*
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* @param dev_handle
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* @param dev_handle
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* The handle to the device.
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* The handle to the device.
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* @return 0 on success or < 0 on error.
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* @return 0 on success or < 0 on error.
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*/
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*/
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public static native int usb_reset(long dev_handle);
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public static native int usb_reset(long dev_handle);
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/**
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/**
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* Claim an interface of a device.<br>
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* Claim an interface of a device.<br>
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* <br>
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* <br>
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* <b>Must be called!:</b> <code>usb_claim_interface</code> must be
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* <b>Must be called!:</b> <code>usb_claim_interface</code> must be
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* called before you perform any operations related to this interface (like
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* called before you perform any operations related to this interface (like
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* <code>usb_set_altinterface, usb_bulk_write</code>, etc).
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* <code>usb_set_altinterface, usb_bulk_write</code>, etc).
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*
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*
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* @param dev_handle
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* @param dev_handle
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* The handle to the device.
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* The handle to the device.
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* @param interface_
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* @param interface_
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* The value as specified in the descriptor field
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* The value as specified in the descriptor field
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* bInterfaceNumber.
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* bInterfaceNumber.
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* @return 0 on success or < 0 on error.
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* @return 0 on success or < 0 on error.
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*/
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*/
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public static native int usb_claim_interface(long dev_handle, int interface_);
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public static native int usb_claim_interface(long dev_handle, int interface_);
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/**
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/**
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* Releases a previously claimed interface
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* Releases a previously claimed interface
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*
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*
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* @param dev_handle
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* @param dev_handle
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* The handle to the device.
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* The handle to the device.
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* @param interface_
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* @param interface_
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* The value as specified in the descriptor field
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* The value as specified in the descriptor field
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* bInterfaceNumber.
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* bInterfaceNumber.
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* @return 0 on success or < 0 on error.
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* @return 0 on success or < 0 on error.
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*/
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*/
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public static native int usb_release_interface(long dev_handle,
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public static native int usb_release_interface(long dev_handle,
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int interface_);
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int interface_);
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// Control Transfers
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// Control Transfers
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/**
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/**
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* Performs a control request to the default control pipe on a device. The
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* Performs a control request to the default control pipe on a device. The
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* parameters mirror the types of the same name in the USB specification.
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* parameters mirror the types of the same name in the USB specification.
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*
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*
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* @param dev_handle
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* @param dev_handle
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* The handle to the device.
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* The handle to the device.
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* @param requesttype
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* @param requesttype
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* @param request
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* @param request
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* @param value
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* @param value
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* @param index
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* @param index
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* @param bytes
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* @param bytes
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* @param size
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* @param size
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* @param timeout
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* @param timeout
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* @return the number of bytes written/read or < 0 on error.
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* @return the number of bytes written/read or < 0 on error.
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*/
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*/
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public static native int usb_control_msg(long dev_handle, int requesttype,
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public static native int usb_control_msg(long dev_handle, int requesttype,
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int request, int value, int index, byte[] bytes, int size,
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int request, int value, int index, byte[] bytes, int size,
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int timeout);
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int timeout);
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|
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/**
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/**
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* Retrieves the string descriptor specified by index and langid from a
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* Retrieves the string descriptor specified by index and langid from a
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* device.
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* device.
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*
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*
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* @param dev_handle
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* @param dev_handle
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* The handle to the device.
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* The handle to the device.
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* @param index
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* @param index
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* @param langid
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* @param langid
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* @return the descriptor String or null
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* @return the descriptor String or null
|
*/
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*/
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public static native String usb_get_string(long dev_handle, int index,
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public static native String usb_get_string(long dev_handle, int index,
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int langid);
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int langid);
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|
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/**
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/**
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* <code>usb_get_string_simple</code> is a wrapper around
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* <code>usb_get_string_simple</code> is a wrapper around
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* <code>usb_get_string</code> that retrieves the string description
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* <code>usb_get_string</code> that retrieves the string description
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* specified by index in the first language for the descriptor.
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* specified by index in the first language for the descriptor.
|
*
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*
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* @param dev_handle
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* @param dev_handle
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* The handle to the device.
|
* The handle to the device.
|
* @param index
|
* @param index
|
* @return the descriptor String or null
|
* @return the descriptor String or null
|
*/
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*/
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public static native String usb_get_string_simple(long dev_handle, int index);
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public static native String usb_get_string_simple(long dev_handle, int index);
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|
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/**
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/**
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* Retrieves a descriptor from the device identified by the type and index
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* Retrieves a descriptor from the device identified by the type and index
|
* of the descriptor from the default control pipe.<br>
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* of the descriptor from the default control pipe.<br>
|
* <br>
|
* <br>
|
* See {@link #usb_get_descriptor_by_endpoint(long, int, byte, byte, int)}
|
* See {@link #usb_get_descriptor_by_endpoint(long, int, byte, byte, int)}
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* for a function that allows the control endpoint to be specified.
|
* for a function that allows the control endpoint to be specified.
|
*
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*
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* @param dev_handle
|
* @param dev_handle
|
* The handle to the device.
|
* The handle to the device.
|
* @param type
|
* @param type
|
* @param index
|
* @param index
|
* @param size
|
* @param size
|
* number of charactes which will be retrieved (the length of the
|
* number of charactes which will be retrieved (the length of the
|
* resulting String)
|
* resulting String)
|
* @return the descriptor String or null
|
* @return the descriptor String or null
|
*/
|
*/
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public static native String usb_get_descriptor(long dev_handle, byte type,
|
public static native String usb_get_descriptor(long dev_handle, byte type,
|
byte index, int size);
|
byte index, int size);
|
|
|
/**
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/**
|
* Retrieves a descriptor from the device identified by the type and index
|
* Retrieves a descriptor from the device identified by the type and index
|
* of the descriptor from the control pipe identified by ep.
|
* of the descriptor from the control pipe identified by ep.
|
*
|
*
|
* @param dev_handle
|
* @param dev_handle
|
* The handle to the device.
|
* The handle to the device.
|
* @param ep
|
* @param ep
|
* @param type
|
* @param type
|
* @param index
|
* @param index
|
* @param size
|
* @param size
|
* number of charactes which will be retrieved (the length of the
|
* number of charactes which will be retrieved (the length of the
|
* resulting String)
|
* resulting String)
|
* @return the descriptor String or null
|
* @return the descriptor String or null
|
*/
|
*/
|
public static native String usb_get_descriptor_by_endpoint(long dev_handle,
|
public static native String usb_get_descriptor_by_endpoint(long dev_handle,
|
int ep, byte type, byte index, int size);
|
int ep, byte type, byte index, int size);
|
|
|
// Bulk Transfers
|
// Bulk Transfers
|
/**
|
/**
|
* Performs a bulk write request to the endpoint specified by ep.
|
* Performs a bulk write request to the endpoint specified by ep.
|
*
|
*
|
* @param dev_handle
|
* @param dev_handle
|
* The handle to the device.
|
* The handle to the device.
|
* @param ep
|
* @param ep
|
* @param bytes
|
* @param bytes
|
* @param size
|
* @param size
|
* @param timeout
|
* @param timeout
|
* @return the number of bytes written on success or < 0 on error.
|
* @return the number of bytes written on success or < 0 on error.
|
*/
|
*/
|
public static native int usb_bulk_write(long dev_handle, int ep,
|
public static native int usb_bulk_write(long dev_handle, int ep,
|
byte[] bytes, int size, int timeout);
|
byte[] bytes, int size, int timeout);
|
|
|
/**
|
/**
|
* Performs a bulk read request to the endpoint specified by ep.
|
* Performs a bulk read request to the endpoint specified by ep.
|
*
|
*
|
* @param dev_handle
|
* @param dev_handle
|
* The handle to the device.
|
* The handle to the device.
|
* @param ep
|
* @param ep
|
* @param bytes
|
* @param bytes
|
* @param size
|
* @param size
|
* @param timeout
|
* @param timeout
|
* @return the number of bytes read on success or < 0 on error.
|
* @return the number of bytes read on success or < 0 on error.
|
*/
|
*/
|
public static native int usb_bulk_read(long dev_handle, int ep,
|
public static native int usb_bulk_read(long dev_handle, int ep,
|
byte[] bytes, int size, int timeout);
|
byte[] bytes, int size, int timeout);
|
|
|
// Interrupt Transfers
|
// Interrupt Transfers
|
/**
|
/**
|
* Performs an interrupt write request to the endpoint specified by ep.
|
* Performs an interrupt write request to the endpoint specified by ep.
|
*
|
*
|
* @param dev_handle
|
* @param dev_handle
|
* The handle to the device.
|
* The handle to the device.
|
* @param ep
|
* @param ep
|
* @param bytes
|
* @param bytes
|
* @param size
|
* @param size
|
* @param timeout
|
* @param timeout
|
* @return the number of bytes written on success or < 0 on error.
|
* @return the number of bytes written on success or < 0 on error.
|
*/
|
*/
|
public static native int usb_interrupt_write(long dev_handle, int ep,
|
public static native int usb_interrupt_write(long dev_handle, int ep,
|
byte[] bytes, int size, int timeout);
|
byte[] bytes, int size, int timeout);
|
|
|
/**
|
/**
|
* Performs a interrupt read request to the endpoint specified by ep.
|
* Performs a interrupt read request to the endpoint specified by ep.
|
*
|
*
|
* @param dev_handle
|
* @param dev_handle
|
* The handle to the device.
|
* The handle to the device.
|
* @param ep
|
* @param ep
|
* @param bytes
|
* @param bytes
|
* @param size
|
* @param size
|
* @param timeout
|
* @param timeout
|
* @return the number of bytes read on success or < 0 on error.
|
* @return the number of bytes read on success or < 0 on error.
|
*/
|
*/
|
public static native int usb_interrupt_read(long dev_handle, int ep,
|
public static native int usb_interrupt_read(long dev_handle, int ep,
|
byte[] bytes, int size, int timeout);
|
byte[] bytes, int size, int timeout);
|
|
|
/**
|
/**
|
* Returns the error string after an error occured.
|
* Returns the error string after an error occured.
|
*
|
*
|
* @return the last error sring.
|
* @return the last error sring.
|
*/
|
*/
|
public static native String usb_strerror();
|
public static native String usb_strerror();
|
|
|
/** **************************************************************** */
|
/** **************************************************************** */
|
|
|
/**
|
/**
|
* Maps the Java error code to the system error code.<br>
|
* Maps the Java error code to the system error code.<br>
|
* <br>
|
* <br>
|
* Note that not all error codes are be mapped by this method. For more
|
* Note that not all error codes are be mapped by this method. For more
|
* error codes see the file 'errno.h' on your system.<br>
|
* error codes see the file 'errno.h' on your system.<br>
|
* <br>
|
* <br>
|
* 1: EBADF: Bad file descriptor.<br>
|
* 1: EBADF: Bad file descriptor.<br>
|
* 2: ENXIO: No such device or address.<br>
|
* 2: ENXIO: No such device or address.<br>
|
* 3: EBUSY: Device or resource busy.<br>
|
* 3: EBUSY: Device or resource busy.<br>
|
* 4: EINVAL: Invalid argument.<br>
|
* 4: EINVAL: Invalid argument.<br>
|
* 5: ETIMEDOUT: Connection timed out.<br>
|
* 5: ETIMEDOUT: Connection timed out.<br>
|
* 6: EIO: I/O error.<br>
|
* 6: EIO: I/O error.<br>
|
* 7: ENOMEM: Not enough memory.<br>
|
* 7: ENOMEM: Not enough memory.<br>
|
*
|
*
|
*
|
*
|
* @return the system error code or 100000 if no mapping has been found.
|
* @return the system error code or 100000 if no mapping has been found.
|
*/
|
*/
|
private static native int usb_error_no(int value);
|
private static native int usb_error_no(int value);
|
|
|
static {
|
static {
|
// System.out.println("os.name: " + System.getProperty("os.name"));
|
// System.out.println("os.name: " + System.getProperty("os.name"));
|
// System.out.println("os.arch: " + System.getProperty("os.arch"));
|
// System.out.println("os.arch: " + System.getProperty("os.arch"));
|
String os = System.getProperty("os.name");
|
String os = System.getProperty("os.name");
|
if (os.contains("Windows")) {
|
if (os.contains("Windows")) {
|
if ( System.getProperty("os.arch").equalsIgnoreCase("amd64") ) {
|
if ( System.getProperty("os.arch").equalsIgnoreCase("amd64") ) {
|
LibLoader.load( "libusbJava64" );
|
LibLoader.load( "libusbJava64" );
|
}
|
}
|
else {
|
else {
|
LibLoader.load( "libusbJava32" );
|
LibLoader.load( "libusbJava32" );
|
}
|
}
|
}
|
}
|
else if ( System.getProperty("os.arch").equalsIgnoreCase("amd64") ) {
|
else {
|
|
try {
|
|
LibLoader.load( "usbJava" );
|
|
// System.err.println("loaded libusbJava");
|
|
}
|
|
catch ( UnsatisfiedLinkError e ) {
|
|
if ( System.getProperty("os.arch").equalsIgnoreCase("amd64") || System.getProperty("os.arch").equalsIgnoreCase("x86_64") ) {
|
LibLoader.load( "usbJava64" );
|
LibLoader.load( "usbJava64" );
|
// System.err.println("loaded libusbJava64");
|
// System.err.println("loaded libusbJava64");
|
}
|
}
|
else {
|
else {
|
try {
|
try {
|
LibLoader.load( "usbJavaSh" );
|
LibLoader.load( "usbJavaSh" );
|
// System.err.println("loaded libusbJavaSh");
|
// System.err.println("loaded libusbJavaSh");
|
}
|
}
|
catch ( UnsatisfiedLinkError e ) {
|
catch ( UnsatisfiedLinkError e2 ) {
|
LibLoader.load( "usbJavaSt" );
|
LibLoader.load( "usbJavaSt" );
|
// System.err.println("loaded libusbJavaSt");
|
// System.err.println("loaded libusbJavaSt");
|
}
|
}
|
|
}
|
|
}
|
}
|
}
|
// define the error codes
|
// define the error codes
|
ERROR_SUCCESS = 0;
|
ERROR_SUCCESS = 0;
|
ERROR_BAD_FILE_DESCRIPTOR = -usb_error_no(1);
|
ERROR_BAD_FILE_DESCRIPTOR = -usb_error_no(1);
|
ERROR_NO_SUCH_DEVICE_OR_ADDRESS = -usb_error_no(2);
|
ERROR_NO_SUCH_DEVICE_OR_ADDRESS = -usb_error_no(2);
|
ERROR_BUSY = -usb_error_no(3);
|
ERROR_BUSY = -usb_error_no(3);
|
ERROR_INVALID_PARAMETER = -usb_error_no(4);
|
ERROR_INVALID_PARAMETER = -usb_error_no(4);
|
ERROR_TIMEDOUT = -usb_error_no(5);
|
ERROR_TIMEDOUT = -usb_error_no(5);
|
ERROR_IO_ERROR = -usb_error_no(6);
|
ERROR_IO_ERROR = -usb_error_no(6);
|
ERROR_NOT_ENOUGH_MEMORY = -usb_error_no(7);
|
ERROR_NOT_ENOUGH_MEMORY = -usb_error_no(7);
|
}
|
}
|
|
|
