File: peperonidevice.cpp

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/*
  Q Light Controller
  peperonidevice.cpp

  Copyright (c) Heikki Junnila

  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0.txt

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
*/

#include <QObject>
#include <QDebug>

#include "usbdmx-dynamic.h"
#include "peperonidevice.h"

/****************************************************************************
 * Initialization
 ****************************************************************************/

PeperoniDevice::PeperoniDevice(QObject* parent, struct usbdmx_functions* usbdmx,
                               int output)
    : QObject(parent)
{
    Q_ASSERT(usbdmx != NULL);

    m_handle = NULL;
    m_output = output;
    m_usbdmx = usbdmx;
    m_deviceOK = false;

    extractName();
}

PeperoniDevice::~PeperoniDevice()
{
    close();
}

/****************************************************************************
 * Properties
 ****************************************************************************/

QString PeperoniDevice::name() const
{
    return m_name;
}

int PeperoniDevice::output() const
{
    return m_output;
}

QString PeperoniDevice::infoText() const
{
    QString str;

    str += QString("<H3>%1</H3>").arg(m_name);
    str += QString("<P>");
    if (m_deviceOK == true)
        str += tr("Device is working correctly.");
    else
        str += tr("Device might not work correctly.");
    str += QString("</P>");

    return str;
}

void PeperoniDevice::extractName()
{
    bool needToClose = false;

    if (m_handle == NULL)
    {
        /* If the device was closed, we need to close it after name
           extraction. But if it was already open, we leave it that
           way, too. */
        needToClose = true;
        open();
    }

    if (m_handle == NULL)
    {
        /* Opening the device failed */
        m_name = tr("Nothing");
        m_deviceOK = false;
    }
    else
    {
        /* Check the device type and name it accordingly */
        if (m_usbdmx->is_xswitch(m_handle) == TRUE)
            m_name = QString("X-Switch");
        else if (m_usbdmx->is_rodin1(m_handle) == TRUE)
            m_name = QString("Rodin 1");
        else if (m_usbdmx->is_rodin2(m_handle) == TRUE)
            m_name = QString("Rodin 2");
        else if (m_usbdmx->is_rodint(m_handle) == TRUE)
            m_name = QString("Rodin T");
        else if (m_usbdmx->is_usbdmx21(m_handle) == TRUE)
            m_name = QString("USBDMX21");
        else
            m_name = tr("Unknown");

        m_deviceOK = true;
    }

    /* Close the device if it was opened only for name extraction */
    if (needToClose == true)
        close();
}

/****************************************************************************
 * Open & close
 ****************************************************************************/

bool PeperoniDevice::open()
{
    if (m_handle != NULL)
        return false;

    /* Open the device */
    if (m_usbdmx->open(m_output, &m_handle) == TRUE)
    {
        USHORT version;

        /* Check the device version against driver version */
        m_usbdmx->device_version(m_handle, &version);
        if (USBDMX_DLL_VERSION_CHECK(m_usbdmx) == FALSE)
            return false;

        /* DMX512 specifies 0 as the official startcode */
        if (m_usbdmx->tx_startcode_set(m_handle, 0) == FALSE)
            return false;
    }
    else
    {
        qWarning() << QString("Unable to open Peperoni %1").arg(m_output + 1);
    }
    return true;
}

void PeperoniDevice::close()
{
    if (m_handle == NULL)
        return;

    m_usbdmx->close(m_handle);
    m_handle = NULL;
}

void PeperoniDevice::rehash()
{
    if (m_handle != NULL)
    {
        close();
        open();
    }

    extractName();
}

/****************************************************************************
 * Write
 ****************************************************************************/

void PeperoniDevice::outputDMX(const QByteArray& universe)
{
    if (m_handle != NULL)
        m_usbdmx->tx_set(m_handle, (unsigned char*) universe.data(),
                         universe.size());
}