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/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Library General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* MilInstWidget1463.cpp
* The MilInst 1-463 Widget.
* Copyright (C) 2013 Peter Newman
*/
#include <algorithm>
#include "ola/Logging.h"
#include "plugins/milinst/MilInstWidget1463.h"
namespace ola {
namespace plugin {
namespace milinst {
/*
* Connect to the widget
*/
bool MilInstWidget1463::Connect() {
OLA_DEBUG << "Connecting to " << m_path;
int fd = ConnectToWidget(m_path);
if (fd < 0)
return false;
m_socket = new ola::io::DeviceDescriptor(fd);
OLA_DEBUG << "Connected to " << m_path;
return true;
}
/*
* Check if this is actually a MilInst device
* @return true if this is a milinst, false otherwise
*/
bool MilInstWidget1463::DetectDevice() {
// This device doesn't do two way comms, so just return true
return true;
}
/*
* Send a DMX msg.
*/
bool MilInstWidget1463::SendDmx(const DmxBuffer &buffer) const {
// TODO(Peter): Probably add offset in here to send higher channels shifted
// down
int bytes_sent = Send112(buffer);
OLA_DEBUG << "Sending DMX, sent " << bytes_sent << " bytes";
// Should this confirm we've sent more than 0 bytes and return false if not?
return true;
}
//-----------------------------------------------------------------------------
// Private methods used for communicating with the widget
/*
* Set a single channel
*/
int MilInstWidget1463::SetChannel(unsigned int chan, uint8_t val) const {
uint8_t msg[2];
msg[0] = chan;
msg[1] = val;
OLA_DEBUG << "Setting " << chan << " to " << static_cast<int>(val);
return m_socket->Send(msg, sizeof(msg));
}
/*
* Send 112 channels worth of data
* @param buffer a DmxBuffer with the data
*/
int MilInstWidget1463::Send112(const DmxBuffer &buffer) const {
unsigned int channels = std::min((unsigned int) DMX_MAX_TRANSMIT_CHANNELS,
buffer.Size());
uint8_t msg[channels * 2];
for (unsigned int i = 0; i <= channels; i++) {
msg[i * 2] = i + 1;
msg[(i * 2) + 1] = buffer.Get(i);
OLA_DEBUG << "Setting " << (i + 1) << " to " <<
static_cast<int>(buffer.Get(i));
}
return m_socket->Send(msg, (channels * 2));
}
} // namespace milinst
} // namespace plugin
} // namespace ola
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