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Code Issues Releases Wiki Activity

extend Fadecandy driver (#109)

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* add functions to send sysEx (not working correctly atm)

* make new values avail via config
This commit is contained in:
redPanther 2016-07-12 22:37:45 +02:00 committed by brindosch
parent 7b9b9bcdef
commit 48d20529d3
3 changed files with 120 additions and 16 deletions
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5
libsrc/leddevice/LedDeviceFactory.cpp
View File

@ -305,10 +305,7 @@ LedDevice * LedDeviceFactory::construct(const Json::Value & deviceConfig)
}
else if (type == "fadecandy")
{
const std::string host = deviceConfig.get("output", "127.0.0.1").asString();
const uint16_t port = deviceConfig.get("port", 7890).asInt();
const uint16_t channel = deviceConfig.get("channel", 0).asInt();
device = new LedDeviceFadeCandy(host, port, channel);
device = new LedDeviceFadeCandy(deviceConfig);
}
else if (type == "udp")
{

69
libsrc/leddevice/LedDeviceFadeCandy.cpp
View File

@ -2,17 +2,20 @@
static const signed MAX_NUM_LEDS = 10000; // OPC can handle 21845 leds - in theory, fadecandy device should handle 10000 leds
static const unsigned OPC_SET_PIXELS = 0; // OPC command codes
static const unsigned OPC_SYS_EX = 255; // OPC command codes
static const unsigned OPC_HEADER_SIZE = 4; // OPC header size
LedDeviceFadeCandy::LedDeviceFadeCandy(const std::string& host, const uint16_t port, const unsigned channel) :
_host(host), _port(port), _channel(channel)
LedDeviceFadeCandy::LedDeviceFadeCandy(const Json::Value &deviceConfig)
{
setConfig(deviceConfig);
_opc_data.resize( OPC_HEADER_SIZE );
_opc_data[0] = channel;
_opc_data[0] = _channel;
_opc_data[1] = OPC_SET_PIXELS;
_opc_data[2] = 0;
_opc_data[3] = 0;
}
@ -21,6 +24,31 @@ LedDeviceFadeCandy::~LedDeviceFadeCandy()
_client.close();
}
bool LedDeviceFadeCandy::setConfig(const Json::Value &deviceConfig)
{
_host = deviceConfig.get("output", "127.0.0.1").asString();
_port = deviceConfig.get("port", 7890).asInt();
_channel = deviceConfig.get("channel", 0).asInt();
_gamma = deviceConfig.get("gamma", 1.0).asDouble();
_noDither = ! deviceConfig.get("dither", false).asBool();
_noInterp = ! deviceConfig.get("interpolation", false).asBool();
_manualLED = deviceConfig.get("manualLed", false).asBool();
_ledOnOff = deviceConfig.get("ledOn", false).asBool();
_whitePoint_r = 1.0;
_whitePoint_g = 1.0;
_whitePoint_b = 1.0;
const Json::Value whitePointConfig = deviceConfig["whitePoint"];
if ( whitePointConfig.isArray() && whitePointConfig.size() == 3 )
{
_whitePoint_r = whitePointConfig[0].asDouble();
_whitePoint_g = whitePointConfig[1].asDouble();
_whitePoint_b = whitePointConfig[2].asDouble();
}
return true;
}
bool LedDeviceFadeCandy::isConnected()
{
@ -33,8 +61,11 @@ bool LedDeviceFadeCandy::tryConnect()
if ( _client.state() == QAbstractSocket::UnconnectedState ) {
_client.connectToHost( _host.c_str(), _port);
if ( _client.waitForConnected(1000) )
{
sendFadeCandyConfiguration();
Info(_log,"fadecandy/opc: connected to %s:%i on channel %i", _host.c_str(), _port, _channel);
}
}
return isConnected();
}
@ -88,3 +119,35 @@ int LedDeviceFadeCandy::switchOff()
return ( transferData()<0 ? -1 : 0 );
}
int LedDeviceFadeCandy::sendSysEx(uint8_t systemId, uint8_t commandId, QByteArray msg)
{
if ( isConnected() )
{
QByteArray sysExData;
ssize_t data_size = msg.size() + 4;
sysExData.resize( 4 + OPC_HEADER_SIZE );
sysExData[0] = 0;
sysExData[1] = OPC_SYS_EX;
sysExData[2] = data_size >>8;
sysExData[3] = data_size &0xff;
sysExData[4] = systemId >>8;
sysExData[5] = systemId &0xff;
sysExData[6] = commandId >>8;
sysExData[7] = commandId &0xff;
sysExData += msg;
return _client.write( sysExData, sysExData.size() );
}
return -1;
}
void LedDeviceFadeCandy::sendFadeCandyConfiguration()
{
QString data = "{\"gamma\": "+QString::number(_gamma,'g',4)+", \"whitepoint\": ["+QString::number(_whitePoint_r,'g',4)+", "+QString::number(_whitePoint_g,'g',4)+", "+QString::number(_whitePoint_b,'g',4)+"]}";
sendSysEx(1, 1, data.toLocal8Bit() );
char firmware_data = ((uint8_t)_noDither | ((uint8_t)_noInterp << 1) | ((uint8_t)_manualLED << 2) | ((uint8_t)_ledOnOff << 3) );
sendSysEx(1, 2, QByteArray(1,firmware_data) );
}

58
libsrc/leddevice/LedDeviceFadeCandy.h
View File

@ -7,6 +7,7 @@
// Leddevice includes
#include <leddevice/LedDevice.h>
#include <json/json.h>
///
/// Implementation of the LedDevice interface for sending to
@ -20,16 +21,39 @@ public:
///
/// Constructs the LedDevice for fadecandy/opc server
///
/// @param host The ip address/host name of fadecandy/opc server
/// @param port The port to use (fadecandy default is 7890)
/// following code shows all config options
/// @code
/// "device" :
/// {
/// "name" : "MyPi",
/// "type" : "fadecandy",
/// "output" : "localhost",
/// "colorOrder" : "rgb",
/// "gamma" : 1.0,
/// "whitepoint" : [1.0, 1.0, 1.0],
/// "dither" : false,
/// "interpolation" : false,
/// "manualLed" : false,
/// "ledOn" : false
/// },
///@endcode
///
LedDeviceFadeCandy(const std::string& host, const uint16_t port, const unsigned channel);
/// @param deviceConfig json config for fadecandy
///
LedDeviceFadeCandy(const Json::Value &deviceConfig);
///
/// Destructor of the LedDevice; closes the tcp client
///
virtual ~LedDeviceFadeCandy();
///
/// Sets configuration
///
/// @param deviceConfig the json device config
/// @return true if success
bool setConfig(const Json::Value &deviceConfig);
///
/// Writes the led color values to the led-device
///
@ -44,11 +68,21 @@ public:
private:
QTcpSocket _client;
const std::string _host;
const uint16_t _port;
const unsigned _channel;
std::string _host;
uint16_t _port;
unsigned _channel;
QByteArray _opc_data;
// fadecandy sysEx
double _gamma;
double _whitePoint_r;
double _whitePoint_g;
double _whitePoint_b;
bool _noDither;
bool _noInterp;
bool _manualLED;
bool _ledOnOff;
/// try to establish connection to opc server, if not connected yet
///
/// @return true if connection is established
@ -61,11 +95,21 @@ private:
///
bool isConnected();
/// transfer current opc_data buffer to opc server
///
/// @return amount of transfered bytes. -1 error while transfering, -2 error while connecting
///
int transferData();
/// send system exclusive commands
///
/// @param systemId fadecandy device identifier (for standard fadecandy always: 1)
/// @param commandId id of command
/// @param msg the sysEx message
/// @return amount bytes written, -1 if fail
int sendSysEx(uint8_t systemId, uint8_t commandId, QByteArray msg);
/// sends the configuration to fcserver
void sendFadeCandyConfiguration();
};