pkg/tflite-micro: add support for tflite-micro

pkg/tflite-micro/Makefile

@@ -0,0 +1,43 @@
+PKG_NAME=tflite-micro
+PKG_URL=https://github.com/tensorflow/tflite-micro
+PKG_VERSION=1501b574b74fd7877aba30aa9d8b667f41b139c3  # sync from 2022.04.07
+PKG_LICENSE=Apache 2.0
+
+include $(RIOTBASE)/pkg/pkg.mk
+
+CFLAGS += -Wno-cast-align
+CFLAGS += -Wno-maybe-uninitialized
+CFLAGS += -Wno-pedantic
+CFLAGS += -Wno-unused-parameter
+
+TFLITE_MODULES := \
+    tflite-c \
+    tflite-core-api \
+    tflite-kernels \
+    tflite-kernels-internal \
+    tflite-kernels-internal-reference \
+    tflite-micro \
+    tflite-micro-kernels \
+    tflite-micro-memory-planner \
+    tflite-schema \
+    #
+
+DIR_tflite-c                            := tensorflow/lite/c
+DIR_tflite-core-api                     := tensorflow/lite/core/api
+DIR_tflite-kernels                      := tensorflow/lite/kernels
+DIR_tflite-kernels-internal             := tensorflow/lite/kernels/internal
+DIR_tflite-kernels-internal-reference   := tensorflow/lite/kernels/internal/reference
+DIR_tflite-micro                        := tensorflow/lite/micro
+DIR_tflite-micro-kernels                := tensorflow/lite/micro/kernels
+DIR_tflite-micro-memory-planner         := tensorflow/lite/micro/memory_planner
+DIR_tflite-schema                       := tensorflow/lite/schema
+
+TFLITE_MODULES_USED := $(filter $(TFLITE_MODULES),$(USEMODULE))
+
+all: $(TFLITE_MODULES_USED)
+	@:
+
+.PHONY: tflite-%
+
+tflite-%:
+	$(QQ)"$(MAKE)" -C $(PKG_SOURCE_DIR)/$(DIR_$@) -f $(CURDIR)/$@.mk

pkg/tflite-micro/Makefile.dep

@@ -0,0 +1,19 @@
+FEATURES_REQUIRED += cpp
+USEMODULE += cpp11-compat
+
+USEPKG += flatbuffers
+USEPKG += gemmlowp
+USEPKG += ruy
+
+USEMODULE += tflite-c
+USEMODULE += tflite-core-api
+USEMODULE += tflite-kernels
+USEMODULE += tflite-kernels-internal
+USEMODULE += tflite-kernels-internal-reference
+USEMODULE += tflite-micro
+USEMODULE += tflite-micro-kernels
+USEMODULE += tflite-micro-memory-planner
+USEMODULE += tflite-schema
+
+# This package doesn't work on riscv and mips
+FEATURES_BLACKLIST += arch_mips32r2 arch_riscv

pkg/tflite-micro/Makefile.include

@@ -0,0 +1,8 @@
+INCLUDES += -I$(PKGDIRBASE)/tflite-micro
+
+CFLAGS += -DTF_LITE_STATIC_MEMORY
+CFLAGS += -DTF_LITE_DISABLE_X86_NEON
+CFLAGS += -DTF_LITE_USE_GLOBAL_CMATH_FUNCTIONS
+CFLAGS += -DTF_LITE_USE_GLOBAL_MIN
+CFLAGS += -DTF_LITE_USE_GLOBAL_MAX
+CFLAGS += -DFLATBUFFERS_LOCALE_INDEPENDENT=0

pkg/tflite-micro/doc.txt

@@ -0,0 +1,11 @@
+/**
+ * @defgroup pkg_tflite-micro   Tensorflow Lite Micro
+ * @ingroup  pkg
+ * @brief    Portable C++ library for signal processing and machine learning inferencing
+ *
+ * # License
+ *
+ * Licensed under Apache 2.0.
+ *
+ * @see      https://github.com/tensorflow/tflite-micro
+ */

pkg/tflite-micro/tflite-c.mk

@@ -0,0 +1,5 @@
+MODULE = tflite-c
+
+SRCXXEXT = cc
+
+include $(RIOTBASE)/Makefile.base

pkg/tflite-micro/tflite-core-api.mk

@@ -0,0 +1,5 @@
+MODULE = tflite-core-api
+
+SRCXXEXT = cc
+
+include $(RIOTBASE)/Makefile.base

pkg/tflite-micro/tflite-kernels-internal-reference.mk

@@ -0,0 +1,5 @@
+MODULE = tflite-kernels-internal-reference
+
+SRCXXEXT = cc
+
+include $(RIOTBASE)/Makefile.base

pkg/tflite-micro/tflite-kernels-internal.mk

@@ -0,0 +1,5 @@
+MODULE = tflite-kernels-internal
+
+SRCXXEXT = cc
+
+include $(RIOTBASE)/Makefile.base

pkg/tflite-micro/tflite-kernels.mk

@@ -0,0 +1,5 @@
+MODULE = tflite-kernels
+
+SRCXXEXT = cc
+
+include $(RIOTBASE)/Makefile.base

pkg/tflite-micro/tflite-micro-kernels.mk

@@ -0,0 +1,6 @@
+MODULE = tflite-micro-kernels
+
+SRCXXEXT = cc
+SRCXXEXCLUDE = $(wildcard *_test.$(SRCXXEXT))
+
+include $(RIOTBASE)/Makefile.base

pkg/tflite-micro/tflite-micro-memory-planner.mk

@@ -0,0 +1,6 @@
+MODULE = tflite-micro-memory-planner
+
+SRCXXEXT = cc
+SRCXXEXCLUDE = $(wildcard *_test.$(SRCXXEXT))
+
+include $(RIOTBASE)/Makefile.base

pkg/tflite-micro/tflite-micro.mk

@@ -0,0 +1,6 @@
+MODULE = tflite-micro
+
+SRCXXEXT = cc
+SRCXXEXCLUDE = $(wildcard *_test.$(SRCXXEXT))
+
+include $(RIOTBASE)/Makefile.base

pkg/tflite-micro/tflite-schema.mk

@@ -0,0 +1,5 @@
+MODULE = tflite-schema
+
+SRCXXEXT = cc
+
+include $(RIOTBASE)/Makefile.base