Alessandro Bonazzi
8c43d5cf2f
Files correlati : cg0.exe cg0700a.msk cg0700b.msk cg3.exe cg4.exe Bug : Commento: Merge 1.0 libraries
231 lines
9.6 KiB
C++
231 lines
9.6 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the tools applications of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "serenum.h"
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#include <QByteArray>
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#include <QString>
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#include <QDebug>
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#include <QFileInfo>
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#include <QDir>
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#include <usb.h>
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class InterfaceInfo
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{
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public:
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InterfaceInfo(const QString &mf, const QString &pr, int mfid, int prid);
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QString manufacturer;
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QString product;
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int manufacturerid;
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int productid;
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};
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InterfaceInfo::InterfaceInfo(const QString &mf, const QString &pr, int mfid, int prid) :
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manufacturer(mf),
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product(pr),
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manufacturerid(mfid),
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productid(prid)
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{
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if(mf.isEmpty())
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manufacturer = QString("[%1]").arg(mfid, 4, 16, QChar('0'));
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if(pr.isEmpty())
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product = QString("[%1]").arg(prid, 4, 16, QChar('0'));
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}
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QList<SerialPortId> enumerateSerialPorts(int loglevel)
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{
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QList<QString> eligibleInterfaces;
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QList<InterfaceInfo> eligibleInterfacesInfo;
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QList<SerialPortId> list;
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usb_init();
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usb_find_busses();
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usb_find_devices();
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for (struct usb_bus *bus = usb_get_busses(); bus; bus = bus->next) {
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for (struct usb_device *device = bus->devices; device; device = device->next) {
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for (int n = 0; n < device->descriptor.bNumConfigurations && device->config; ++n) {
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struct usb_config_descriptor &usbConfig =device->config[n];
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QList<int> usableInterfaces;
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for (int m = 0; m < usbConfig.bNumInterfaces; ++m) {
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for (int o = 0; o < usbConfig.interface[m].num_altsetting; ++o) {
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struct usb_interface_descriptor &descriptor = usbConfig.interface[m].altsetting[o];
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if (descriptor.bInterfaceClass != 2 // "Communication"
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|| descriptor.bInterfaceSubClass != 2 // Abstract (modem)
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|| descriptor.bInterfaceProtocol != 255) // Vendor Specific
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continue;
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unsigned char *buf = descriptor.extra;
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unsigned int size = descriptor.extralen;
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while (size >= 2 * sizeof(u_int8_t)) {
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// for Communication devices there is a slave interface for the actual
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// data transmission.
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// the extra info stores that as a index for the interface
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if (buf[0] >= 5 && buf[1] == 36 && buf[2] == 6) { // CDC Union
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for (int i = 3; i < buf[0]; i++)
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usableInterfaces.append((int) buf[i]);
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}
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size -= buf[0];
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buf += buf[0];
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}
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}
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}
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if (usableInterfaces.isEmpty())
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continue;
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QString manufacturerString;
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QString productString;
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usb_dev_handle *devh = usb_open(device);
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if (devh) {
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QByteArray buf;
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buf.resize(256);
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int err = usb_get_string_simple(devh, device->descriptor.iManufacturer, buf.data(), buf.size());
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if (err < 0) {
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if (loglevel > 1)
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qDebug() << " can't read manufacturer name, error:" << err;
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} else {
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manufacturerString = QString::fromAscii(buf);
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if (loglevel > 1)
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qDebug() << " manufacturer:" << manufacturerString;
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}
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buf.resize(256);
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err = usb_get_string_simple(devh, device->descriptor.iProduct, buf.data(), buf.size());
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if (err < 0) {
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if (loglevel > 1)
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qDebug() << " can't read product name, error:" << err;
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} else {
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productString = QString::fromAscii(buf);
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if (loglevel > 1)
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qDebug() << " product:" << productString;
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}
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usb_close(devh);
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} else if (loglevel > 0) {
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qDebug() << " can't open usb device";
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}
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// second loop to find the actual data interface.
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foreach (int i, usableInterfaces) {
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#ifdef Q_OS_MAC
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eligibleInterfaces << QString("^cu\\.usbmodem.*%1$")
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.arg(QString("%1").arg(i, 1, 16).toUpper());
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eligibleInterfacesInfo << InterfaceInfo(manufacturerString, productString, device->descriptor.idVendor, device->descriptor.idProduct);
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#else
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// ### manufacturer and product strings are only readable as root :(
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if (!manufacturerString.isEmpty() && !productString.isEmpty()) {
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eligibleInterfaces << QString("usb-%1_%2-if%3")
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.arg(manufacturerString.replace(QChar(' '), QChar('_')))
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.arg(productString.replace(QChar(' '), QChar('_')))
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.arg(i, 2, 16, QChar('0'));
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} else {
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eligibleInterfaces << QString("if%1").arg(i, 2, 16, QChar('0')); // fix!
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}
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#endif
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}
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#ifndef Q_OS_MAC
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// On mac, we need a 1-1 mapping between eligibleInterfaces and eligibleInterfacesInfo
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// in order to find the friendly name for an interface
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eligibleInterfacesInfo << InterfaceInfo(manufacturerString, productString, device->descriptor.idVendor, device->descriptor.idProduct);
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#endif
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}
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}
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}
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if (loglevel > 1)
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qDebug() << " searching for interfaces:" << eligibleInterfaces;
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#ifdef Q_OS_MAC
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QDir dir("/dev/");
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bool allowAny = false;
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#else
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QDir dir("/dev/serial/by-id/");
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bool allowAny = eligibleInterfaces.isEmpty();
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#endif
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foreach (const QFileInfo &info, dir.entryInfoList(QDir::System)) {
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if (!info.isDir()) {
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bool usable = allowAny;
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QString friendlyName = info.fileName();
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foreach (const QString &iface, eligibleInterfaces) {
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if (info.fileName().contains(QRegExp(iface))) {
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if (loglevel > 1)
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qDebug() << " found device file:" << info.fileName() << endl;
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#ifdef Q_OS_MAC
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InterfaceInfo info = eligibleInterfacesInfo[eligibleInterfaces.indexOf(iface)];
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friendlyName = info.manufacturer + " " + info.product;
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#endif
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usable = true;
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break;
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}
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}
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if (!usable)
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continue;
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SerialPortId id;
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id.friendlyName = friendlyName;
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id.portName = info.canonicalFilePath();
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list << id;
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}
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}
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if (list.isEmpty() && !eligibleInterfacesInfo.isEmpty() && loglevel > 0) {
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qDebug() << "Possible USB devices found, but without serial drivers:";
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foreach(const InterfaceInfo &iface, eligibleInterfacesInfo) {
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qDebug() << " Manufacturer:"
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<< iface.manufacturer
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<< "Product:"
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<< iface.product
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#ifdef Q_OS_LINUX
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<< endl
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<< " Load generic driver using:"
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<< QString("sudo modprobe usbserial vendor=0x%1 product=0x%2")
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.arg(iface.manufacturerid, 4, 16, QChar('0'))
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.arg(iface.productid, 4, 16, QChar('0'));
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#else
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;
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#endif
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}
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}
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return list;
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}
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