mirror of
https://github.com/hyperion-project/hyperion.ng.git
synced 2023-10-10 13:36:59 +02:00
88 lines
2.3 KiB
C++
88 lines
2.3 KiB
C++
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// STL includes
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#include <cstring>
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#include <cstdio>
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#include <iostream>
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// Linux includes
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include <arpa/inet.h>
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#include <QHostInfo>
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#include <QUuid>
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// hyperion local includes
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#include "LedDeviceTpm2net.h"
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LedDeviceTpm2net::LedDeviceTpm2net(const Json::Value &deviceConfig)
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: ProviderUdp(deviceConfig)
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{
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setConfig(deviceConfig);
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}
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bool LedDeviceTpm2net::setConfig(const Json::Value &deviceConfig)
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{
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ProviderUdp::setConfig(deviceConfig,50200);
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_LatchTime_ns = deviceConfig.get("latchtime",104000).asInt();
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_tpm2_max = deviceConfig.get("max-packet",170).asInt();
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return true;
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}
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LedDevice* LedDeviceTpm2net::construct(const Json::Value &deviceConfig)
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{
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return new LedDeviceTpm2net(deviceConfig);
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}
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// populates the headers
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int LedDeviceTpm2net::write(const std::vector<ColorRgb> &ledValues)
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{
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uint8_t * _tpm2_buffer = (uint8_t*) malloc(_tpm2_max+7);
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int retVal = 0;
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_ledCount = ledValues.size();
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_tpm2ByteCount = 3 * _ledCount;
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_tpm2TotalPackets = 1 + _tpm2ByteCount / _tpm2_max;
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int _thisPacketBytes = 0;
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_tpm2ThisPacket = 1;
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const uint8_t * rawdata = reinterpret_cast<const uint8_t *>(ledValues.data());
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for (int rawIdx = 0; rawIdx < _tpm2ByteCount; rawIdx++)
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{
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if (rawIdx % _tpm2_max == 0) // start of new packet
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{
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_thisPacketBytes = (_tpm2ByteCount - rawIdx < _tpm2_max) ? _tpm2ByteCount % _tpm2_max : _tpm2_max;
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// is this the last packet? ? ^^ last packet : ^^ earlier packets
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_tpm2_buffer[0] = 0x9c; // Packet start byte
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_tpm2_buffer[1] = 0xda; // Packet type Data frame
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_tpm2_buffer[2] = (_thisPacketBytes >> 8) & 0xff; // Frame size high
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_tpm2_buffer[3] = _thisPacketBytes & 0xff; // Frame size low
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_tpm2_buffer[4] = _tpm2ThisPacket++; // Packet Number
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_tpm2_buffer[5] = _tpm2TotalPackets; // Number of packets
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}
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_tpm2_buffer [6 + rawIdx%_tpm2_max] = rawdata[rawIdx];
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// is this the last byte of last packet || last byte of other packets
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if ( (rawIdx == _tpm2ByteCount-1) || (rawIdx %_tpm2_max == _tpm2_max-1) )
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{
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_tpm2_buffer [6 + rawIdx%_tpm2_max +1] = 0x36; // Packet end byte
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retVal &= writeBytes(_thisPacketBytes+7, _tpm2_buffer);
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}
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}
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return retVal;
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}
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int LedDeviceTpm2net::switchOff()
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{
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return write(std::vector<ColorRgb>(_ledCount, ColorRgb{0,0,0}));
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}
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