From ce63ff8c1c90453fa45b8b97eb03c02075c70469 Mon Sep 17 00:00:00 2001
From: shahoian <ruben.shahoyan@cern.ch>
Date: Wed, 20 Nov 2024 15:58:31 +0100
Subject: [PATCH] Object to provide TB to cut due to the Altro sync. procedure

---
 DataFormats/Detectors/TPC/CMakeLists.txt      |  3 +-
 .../include/DataFormatsTPC/AltroSyncSignal.h  | 30 +++++++++++++++++++
 .../Detectors/TPC/src/DataFormatsTPCLinkDef.h |  1 +
 3 files changed, 33 insertions(+), 1 deletion(-)
 create mode 100644 DataFormats/Detectors/TPC/include/DataFormatsTPC/AltroSyncSignal.h

diff --git a/DataFormats/Detectors/TPC/CMakeLists.txt b/DataFormats/Detectors/TPC/CMakeLists.txt
index b2f9eb9e53e85..b8b93c308e85d 100644
--- a/DataFormats/Detectors/TPC/CMakeLists.txt
+++ b/DataFormats/Detectors/TPC/CMakeLists.txt
@@ -63,7 +63,8 @@ o2_target_root_dictionary(
           include/DataFormatsTPC/VDriftCorrFact.h
           include/DataFormatsTPC/CalibdEdxCorrection.h
           include/DataFormatsTPC/BetheBlochAleph.h
-          include/DataFormatsTPC/PIDResponse.h)
+          include/DataFormatsTPC/PIDResponse.h
+          include/DataFormatsTPC/AltroSyncSignal.h)
 
 o2_add_test(
   ClusterNative
diff --git a/DataFormats/Detectors/TPC/include/DataFormatsTPC/AltroSyncSignal.h b/DataFormats/Detectors/TPC/include/DataFormatsTPC/AltroSyncSignal.h
new file mode 100644
index 0000000000000..d98dd1c5f6eff
--- /dev/null
+++ b/DataFormats/Detectors/TPC/include/DataFormatsTPC/AltroSyncSignal.h
@@ -0,0 +1,30 @@
+// 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.
+
+/// \file AltroSyncSignal.h
+/// \brief Definition of the timebin from which syncronization starts
+
+#include "GPUCommonRtypes.h"
+
+namespace o2::tpc
+{
+struct AltroSyncSignal {
+  int periodTF = 10;     // signal repeats every period-th TF
+  int timebin = 141192.; // every 10 TF, orbit 31, Time bin 384, BC 4 -> 141195, but clusters can be affected before that
+
+  int getTB2Cut(uint32_t tfCounter) const
+  {
+    return periodTF > 0 && (tfCounter % periodTF) == 1 && tfCounter > periodTF ? timebin : -1;
+  }
+
+  ClassDefNV(AltroSyncSignal, 1);
+};
+} // namespace o2::tpc
diff --git a/DataFormats/Detectors/TPC/src/DataFormatsTPCLinkDef.h b/DataFormats/Detectors/TPC/src/DataFormatsTPCLinkDef.h
index 676a4e0144be0..f248a74950a1f 100644
--- a/DataFormats/Detectors/TPC/src/DataFormatsTPCLinkDef.h
+++ b/DataFormats/Detectors/TPC/src/DataFormatsTPCLinkDef.h
@@ -73,5 +73,6 @@
 #pragma link C++ class o2::tpc::TriggerWordDLBZS + ;
 #pragma link C++ class o2::tpc::TriggerInfoDLBZS + ;
 #pragma link C++ class std::vector < o2::tpc::TriggerInfoDLBZS> + ;
+#pragma link C++ class o2::tpc::AltroSyncSignal + ;
 
 #endif