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File indexing completed on 2021-02-14 13:26:14

0001 #ifndef EventFilter_RPCRawToDigi_RPCAMCRawToDigi_h
0002 #define EventFilter_RPCRawToDigi_RPCAMCRawToDigi_h
0003 
0004 #include "FWCore/Framework/interface/stream/EDProducer.h"
0005 #include "FWCore/Utilities/interface/CRC16.h"
0006 
0007 #include "DataFormats/FEDRawData/interface/FEDRawDataCollection.h"
0008 #include "DataFormats/RPCDigi/interface/RPCAMCLinkCounters.h"
0009 #include "EventFilter/RPCRawToDigi/interface/RPCAMC13Record.h"
0010 
0011 namespace edm {
0012   class ConfigurationDescriptions;
0013   class Event;
0014   class EventSetup;
0015   class ParameterSet;
0016   class Run;
0017 }  // namespace edm
0018 
0019 class RPCAMCUnpacker;
0020 
0021 class RPCAMCRawToDigi : public edm::stream::EDProducer<> {
0022 public:
0023   RPCAMCRawToDigi(edm::ParameterSet const &config);
0024   ~RPCAMCRawToDigi() override;
0025 
0026   static void compute_crc16_64bit(std::uint16_t &crc, std::uint64_t const &word);
0027 
0028   static void fillDescriptions(edm::ConfigurationDescriptions &descs);
0029 
0030   void beginRun(edm::Run const &run, edm::EventSetup const &setup) override;
0031   void produce(edm::Event &event, edm::EventSetup const &setup) override;
0032 
0033 protected:
0034   bool processCDFHeaders(int fed,
0035                          std::uint64_t const *&word,
0036                          std::uint64_t const *&word_end,
0037                          std::uint16_t &crc,
0038                          RPCAMCLinkCounters &counters) const;
0039   bool processCDFTrailers(int fed,
0040                           unsigned int nwords,
0041                           std::uint64_t const *&word,
0042                           std::uint64_t const *&word_end,
0043                           std::uint16_t &crc,
0044                           RPCAMCLinkCounters &counters) const;
0045   bool processBlocks(int fed,
0046                      std::uint64_t const *&word,
0047                      std::uint64_t const *word_end,
0048                      std::uint16_t &crc,
0049                      RPCAMCLinkCounters &counters,
0050                      std::map<RPCAMCLink, rpcamc13::AMCPayload> &amc_payload) const;
0051 
0052 protected:
0053   edm::EDGetTokenT<FEDRawDataCollection> raw_token_;
0054 
0055   bool calculate_crc_, fill_counters_;
0056 
0057   std::unique_ptr<RPCAMCUnpacker> rpc_unpacker_;
0058 };
0059 
0060 inline void RPCAMCRawToDigi::compute_crc16_64bit(
0061     std::uint16_t &crc, std::uint64_t const &word) {  // overcome constness problem evf::compute_crc_64bit
0062   unsigned char const *uchars(reinterpret_cast<unsigned char const *>(&word));
0063   for (unsigned char const *uchar = uchars + 7; uchar >= uchars; --uchar) {
0064     crc = evf::compute_crc_8bit(crc, *uchar);
0065   }
0066 }
0067 
0068 #endif  // EventFilter_RPCRawToDigi_RPCAMCRawToDigi_h