From 42dc88a789ebfbc07f1238ad5e88fcee7756989e Mon Sep 17 00:00:00 2001
From: smathis <stefan.mathis@psi.ch>
Date: Thu, 27 Aug 2026 14:00:35 +0200
Subject: [PATCH] Make number of driver instances parametrizable

---
 CMakeLists.txt           | 24 ++++++++--------------
 frontend/cfd950_scfe.cxx | 44 ++++++++++++++++++++++++++++++++++------
 2 files changed, 47 insertions(+), 21 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index bfec69a..716e8af 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -56,22 +56,23 @@ target_link_libraries(
 )
 
 ################################################################################
-## Test Frontend
+## Default Frontend
 ################################################################################
+set(_DEFAULT_CFD950_FRONTEND_DIR "${CMAKE_CURRENT_LIST_DIR}" CACHE INTERNAL "")
 
-set(_DEFAULT_CFD_FRONTEND_DIR "${CMAKE_CURRENT_LIST_DIR}" CACHE INTERNAL "")
-
-function(default_cfd_frontend F_TARGET F_NAME F_EVENT_ID)
+function(default_cfd950_frontend F_TARGET F_NAME F_EVENT_ID NUM_CH NUM_DR)
 
   add_executable(
     ${F_TARGET}
-    ${_DEFAULT_CFD_FRONTEND_DIR}/frontend/cfd950_scfe.cxx
+    ${_DEFAULT_CFD950_FRONTEND_DIR}/frontend/cfd950_scfe.cxx
     $ENV{MIDASSYS}/drivers/bus/null.cxx
     $ENV{MIDASSYS}/drivers/class/generic.cxx
   )
 
   target_compile_definitions(${F_TARGET} PRIVATE FRONTEND_NAME="${F_NAME}")
   target_compile_definitions(${F_TARGET} PRIVATE FRONTEND_ID=${F_EVENT_ID})
+  target_compile_definitions(${F_TARGET} PRIVATE FRONTEND_CHANNELS=${NUM_CH})
+  target_compile_definitions(${F_TARGET} PRIVATE NUMDRIVERS=${NUM_DR})
 
   set_property(
     TARGET
@@ -83,20 +84,13 @@ function(default_cfd_frontend F_TARGET F_NAME F_EVENT_ID)
   target_include_directories(
     ${F_TARGET}
     PRIVATE
-      $ENV{MIDASSYS}/drivers
+    $ENV{MIDASSYS}/drivers
   )
 
   target_link_libraries(
     ${F_TARGET}
-    PRIVATE
-      cfd950
-      midas::mfe
-  )
-
-  install(
-    TARGETS
-      ${F_TARGET}
-    RUNTIME DESTINATION bin
+    cfd950
+    midas::mfe
   )
 
 endfunction()
diff --git a/frontend/cfd950_scfe.cxx b/frontend/cfd950_scfe.cxx
index 2049a0d..e54bccd 100644
--- a/frontend/cfd950_scfe.cxx
+++ b/frontend/cfd950_scfe.cxx
@@ -45,13 +45,45 @@ INT event_buffer_size = 10*10000;
 //-- Equipment list ------------------------------------------------
 
 //! device driver list
+#ifndef NUMDRIVERS
+#define NUMDRIVERS 5
+#endif
+
+#define DRIVER(n) \
+    { "CFD950_" #n, cfd950, FRONTEND_CHANNELS, null, DF_PRIO_DEVICE }
+
 DEVICE_DRIVER cfd950_driver[] = {
-  { "CFD950_1", cfd950, 35, null, DF_PRIO_DEVICE },
-  { "CFD950_2", cfd950, 35, null, DF_PRIO_DEVICE },
-  { "CFD950_3", cfd950, 35, null, DF_PRIO_DEVICE },
-  { "CFD950_4", cfd950, 35, null, DF_PRIO_DEVICE },
-  { "CFD950_5", cfd950, 35, null, DF_PRIO_DEVICE },
-  { ""},//List needs to be terminated by an empty name. Otherwise, unallocated memory is accessed during initialization!
+#if NUMDRIVERS >= 1
+    DRIVER(1),
+#endif
+#if NUMDRIVERS >= 2
+    DRIVER(2),
+#endif
+#if NUMDRIVERS >= 3
+    DRIVER(3),
+#endif
+#if NUMDRIVERS >= 4
+    DRIVER(4),
+#endif
+#if NUMDRIVERS >= 5
+    DRIVER(5),
+#endif
+#if NUMDRIVERS >= 6
+    DRIVER(6),
+#endif
+#if NUMDRIVERS >= 7
+    DRIVER(7),
+#endif
+#if NUMDRIVERS >= 8
+    DRIVER(8),
+#endif
+#if NUMDRIVERS >= 9
+    DRIVER(9),
+#endif
+#if NUMDRIVERS >= 10
+    DRIVER(10),
+#endif
+    { "" } //List needs to be terminated by an empty name. Otherwise, unallocated memory is accessed during initialization!
 };
 
 /*!