FEEIdConfig.h

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// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
// This software is distributed under the terms of the GNU General Public
// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
//
// In applying this license CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
 
#ifndef O2_MID_FEEIDCONFIG_H
#define O2_MID_FEEIDCONFIG_H
 
#include <cstdint>
#include <unordered_map>
#include <vector>
 
namespace o2
{
namespace mid
{
class FEEIdConfig
{
 public:
  FEEIdConfig();
  FEEIdConfig(const char* filename);
  ~FEEIdConfig() = default;
 
  uint16_t getGBTUniqueId(uint32_t linkUniqueId) const;
 
  inline const std::vector<uint16_t>& getGBTUniqueIdsInLink(uint16_t feeId) const { return mGBTUniqueIdsInLink.find(feeId)->second; }
 
  uint16_t getGBTUniqueId(uint8_t linkId, uint8_t endPointId, uint16_t cruId) const { return getGBTUniqueId(getLinkUniqueId(linkId, endPointId, cruId)); }
 
  inline uint32_t getLinkUniqueId(uint8_t linkId, uint8_t endPointId, uint16_t cruId) const { return (linkId + 1) << ((endPointId == 1) ? 8U : 0U) | (cruId << 16U); }
 
  inline uint16_t getCRUId(uint32_t linkUniqueId) const { return linkUniqueId >> 16; }
  inline uint8_t getEndPointId(uint32_t linkUniqueId) const { return (linkUniqueId & 0xFF00) ? 1 : 0; }
  inline uint8_t getLinkId(uint32_t linkUniqueId) const { return ((linkUniqueId >> (8U * getEndPointId(linkUniqueId))) & 0xFF) - 1; }
  uint16_t getFEEId(uint16_t gbtUniqueId) const;
 
  std::vector<uint16_t> getConfiguredGBTUniqueIDs() const;
  std::vector<uint32_t> getConfiguredLinkUniqueIDs() const;
  std::vector<uint16_t> getConfiguredFEEIDs() const;
 
  void write(const char* filename) const;
 
 private:
  bool load(const char* filename);
  void add(uint16_t gbtUniqueId, uint8_t linkId, uint8_t epId, uint16_t cruId, uint16_t feeId);
  void add(uint16_t gbtUniqueId, uint8_t linkId, uint8_t epId, uint16_t cruId);
 
  std::unordered_map<uint32_t, uint16_t> mLinkUniqueIdToGBTUniqueId{};       
  std::unordered_map<uint16_t, uint16_t> mGBTUniqueIdToFeeId{};              
  std::unordered_map<uint16_t, std::vector<uint16_t>> mGBTUniqueIdsInLink{}; 
};
} // namespace mid
} // namespace o2
 
#endif /* O2_MID_FEEIDCONFIG_H */