drivers: add generic upper-half driver for Field Oriented Control (FOC)

drivers/motor/foc/Make.defs

@@ -0,0 +1,29 @@
+############################################################################
+# drivers/motor/foc/Make.defs
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.  The
+# ASF licenses this file to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance with the
+# License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+############################################################################
+
+# Include FOC driver into the build
+
+CSRCS += foc_dev.c
+
+# Include FOC driver build support
+
+DEPPATH += --dep-path motor$(DELIM)foc
+VPATH += :motor$(DELIM)foc
+CFLAGS += ${shell $(INCDIR) $(INCDIROPT) "$(CC)" $(TOPDIR)$(DELIM)drivers$(DELIM)motor$(DELIM)foc}