hyperion.ng/libsrc/leddevice/LedUdpDevice.cpp
penfold42 6f43fe1196 New QT based udp driver (#662)
* Removed -HUP so the default -TERM signal is sent instead.
- hyperiond only listens for TERM and INT. HUP is often used to get an exe to reread its config

Changed pgrep to add '-x' so it wont partial match on the exe name.
- I have multiple instances with multiple hyperiond-instance1 names
- this ensures the service script only kills the right process

* reversing errant change to hyperion.systemd.sh

* cleaned up a couple of compiler warnings

* moved bitpair_to_byte initialiser to (hopefully) work with older GCC

* compiler warning in udp driver
removed some tabs in ws2812b.cpp

* formatting - spaces to tabs

* moved rpi_281x to tag sk6812-v1.0

* moving to my fork of rpi_281x

* half way thru re merging the newudp support

* Whoops.... dont know how it compiled before..

* Removed debugging that was commented out


Former-commit-id: ac4330422f93f3d594dfcba5593759288298d25e
2016-05-30 23:58:31 +02:00

86 lines
1.7 KiB
C++

// STL includes
#include <cstring>
#include <cstdio>
#include <iostream>
// Linux includes
#include <fcntl.h>
#include <sys/ioctl.h>
#include <QStringList>
#include <QUdpSocket>
#include <QHostInfo>
// Local Hyperion includes
#include "LedUdpDevice.h"
LedUdpDevice::LedUdpDevice(const std::string& outputDevice, const unsigned baudrate, const int latchTime_ns) :
mDeviceName(outputDevice),
mBaudRate_Hz(baudrate),
mLatchTime_ns(latchTime_ns),
mFid(-1)
{
udpSocket = new QUdpSocket();
QString str = QString::fromStdString(mDeviceName);
QStringList _list = str.split(":");
if (_list.size() != 2) {
printf ("ERROR: LedUdpDevice: Error parsing hostname:port\n");
exit (-1);
}
QHostInfo info = QHostInfo::fromName(_list.at(0));
if (!info.addresses().isEmpty()) {
_address = info.addresses().first();
// use the first IP address
}
_port = _list.at(1).toInt();
}
LedUdpDevice::~LedUdpDevice()
{
// close(mFid);
}
int LedUdpDevice::open()
{
udpSocket->bind(QHostAddress::Any, 7755);
/*
if (mFid < 0)
{
std::cerr << "Failed to open device('" << mDeviceName << "') " << std::endl;
return -1;
}
*/
return 0;
}
int LedUdpDevice::writeBytes(const unsigned size, const uint8_t * data)
{
/*
if (mFid < 0)
{
return -1;
}
*/
// int retVal = udpSocket->writeDatagram((const char *)data,size,QHostAddress::LocalHost,9998);
int retVal = udpSocket->writeDatagram((const char *)data,size,_address,_port);
if (retVal == 0 && mLatchTime_ns > 0)
{
// The 'latch' time for latching the shifted-value into the leds
timespec latchTime;
latchTime.tv_sec = 0;
latchTime.tv_nsec = mLatchTime_ns;
// Sleep to latch the leds (only if write succesfull)
nanosleep(&latchTime, NULL);
}
return retVal;
}