add opentrons_hardware to buildroot config files

Config.in

@@ -5,4 +5,5 @@ source "$BR2_EXTERNAL_OPENTRONS_MONOREPO_PATH/robot-server/Config.in"
 source "$BR2_EXTERNAL_OPENTRONS_MONOREPO_PATH/shared-data/python/Config.in"
 source "$BR2_EXTERNAL_OPENTRONS_MONOREPO_PATH/notify-server/Config.in"
 source "$BR2_EXTERNAL_OPENTRONS_MONOREPO_PATH/system-server/Config.in"
-source "$BR2_EXTERNAL_OPENTRONS_MONOREPO_PATH/server-utils/Config.in"
+source "$BR2_EXTERNAL_OPENTRONS_MONOREPO_PATH/server-utils/Config.in"
+source "$BR2_EXTERNAL_OPENTRONS_MONOREPO_PATH/hardware/Config.in"

external.mk

@@ -6,3 +6,4 @@ include $(BR2_EXTERNAL_OPENTRONS_MONOREPO_PATH)/shared-data/python/buildroot.mk
 include $(BR2_EXTERNAL_OPENTRONS_MONOREPO_PATH)/notify-server/buildroot.mk
 include $(BR2_EXTERNAL_OPENTRONS_MONOREPO_PATH)/system-server/buildroot.mk
 include $(BR2_EXTERNAL_OPENTRONS_MONOREPO_PATH)/server-utils/buildroot.mk
+include $(BR2_EXTERNAL_OPENTRONS_MONOREPO_PATH)/hardware/buildroot.mk

hardware/Config.in

@@ -0,0 +1,17 @@
+config BR2_PACKAGE_PYTHON_OPENTRONS_HARDWARE
+  bool "python-opentrons-system-server"
+  depends on BR2_PACKAGE_PYTHON3
+  select BR2_PACKAGE_PYTHON_AIONOTIFY # runtime
+  select BR2_PACKAGE_PYTHON_ANYIO # runtime
+  select BR2_PACKAGE_PYTHON_JSONSCHEMA # runtime
+  select BR2_PACKAGE_PYTHON_NUMPY # runtime
+  select BR2_PACKAGE_PYTHON_PYDANTIC # runtime
+  select BR2_PACKAGE_PYTHON_SERIAL # runtime
+  select BR2_PACKAGE_PYTHON_SYSTEMD # runtime
+  select BR2_PACKAGE_PYTHON_TYPING_EXTENSIONS # runtime
+  select BR2_PACKAGE_PYTHON_CLICK # runtime
+
+  help
+    Opentrons system HTTP server. Provides access to an OT-2 robot.
+
+    https://opentrons.com

hardware/buildroot.mk

@@ -0,0 +1,32 @@
+################################################################################
+#
+# python-opentrons-hardware
+#
+################################################################################
+
+define OTHARDWARE_CALL_PBU
+	$(shell python $(BR2_EXTERNAL_OPENTRONS_MONOREPO_PATH)/scripts/python_build_utils.py hardware $(or $(OPENTRONS_PROJECT),robot-stack) $(1))
+endef
+
+PYTHON_OPENTRONS_HARDWARE_VERSION = $(call OTHARDWARE_CALL_PBU,get_version)
+PYTHON_OPENTRONS_HARDWARE_LICENSE = Apache-2
+PYTHON_OPENTRONS_HARDWARE_LICENSE_FILES = $(BR2_EXTERNAL_OPENTRONS_MONOREPO_PATH)/LICENSE
+PYTHON_OPENTRONS_HARDWARE_SETUP_TYPE = setuptools
+PYTHON_OPENTRONS_HARDWARE_SITE_METHOD = local
+PYTHON_OPENTRONS_HARDWARE_SITE = $(BR2_EXTERNAL_OPENTRONS_MONOREPO_PATH)
+PYTHON_OPENTRONS_HARDWARE_SUBDIR = hardware
+PYTHON_OPENTRONS_HARDWARE_POST_INSTALL_TARGET_HOOKS = PYTHON_OPENTRONS_HARDWARE_INSTALL_VERSION
+
+define PYTHON_OPENTRONS_HARDWARE_INSTALL_VERSION
+	echo '$(call OTHARDWARE_CALL_PBU,dump_br_version)' > $(BINARIES_DIR)/opentrons-hardware-version.json
+endef
+
+ot_hardware_name := python-opentrons-hardware
+
+export OPENTRONS_GIT_DIR=$(BR2_EXTERNAL_OPENTRONS_MONOREPO_PATH)
+
+# Calling inner-python-package directly instead of using python-package macro
+# because our directory layout doesn’t conform to buildroot’s expectation of
+# having the directory name be the package name
+$(eval $(call inner-python-package,$(ot_hardware_name),$(call UPPERCASE,$(ot_hardware_name)),$(call UPPERCASE,$(ot_hardware_name)),target))
+