From 0efe0f838a2e83dcd1d001f491e56f0ef302d0ca Mon Sep 17 00:00:00 2001
From: Alexandre Abadie <alexandre.abadie@inria.fr>
Date: Fri, 8 Apr 2022 09:14:35 +0200
Subject: [PATCH] pkg/tflite-micro: add support for tflite-micro

---
 pkg/tflite-micro/Makefile                     |  43 ++++++++++++++++++
 pkg/tflite-micro/Makefile.dep                 |  19 ++++++++
 pkg/tflite-micro/Makefile.include             |   8 ++++
 pkg/tflite-micro/doc.txt                      |  11 +++++
 ...01-fix-build-with-private-descriptor.patch | Bin 0 -> 1444 bytes
 pkg/tflite-micro/tflite-c.mk                  |   5 ++
 pkg/tflite-micro/tflite-core-api.mk           |   5 ++
 .../tflite-kernels-internal-reference.mk      |   5 ++
 pkg/tflite-micro/tflite-kernels-internal.mk   |   5 ++
 pkg/tflite-micro/tflite-kernels.mk            |   5 ++
 pkg/tflite-micro/tflite-micro-kernels.mk      |   6 +++
 .../tflite-micro-memory-planner.mk            |   6 +++
 pkg/tflite-micro/tflite-micro.mk              |   6 +++
 pkg/tflite-micro/tflite-schema.mk             |   5 ++
 14 files changed, 129 insertions(+)
 create mode 100644 pkg/tflite-micro/Makefile
 create mode 100644 pkg/tflite-micro/Makefile.dep
 create mode 100644 pkg/tflite-micro/Makefile.include
 create mode 100644 pkg/tflite-micro/doc.txt
 create mode 100644 pkg/tflite-micro/patches/0001-fix-build-with-private-descriptor.patch
 create mode 100644 pkg/tflite-micro/tflite-c.mk
 create mode 100644 pkg/tflite-micro/tflite-core-api.mk
 create mode 100644 pkg/tflite-micro/tflite-kernels-internal-reference.mk
 create mode 100644 pkg/tflite-micro/tflite-kernels-internal.mk
 create mode 100644 pkg/tflite-micro/tflite-kernels.mk
 create mode 100644 pkg/tflite-micro/tflite-micro-kernels.mk
 create mode 100644 pkg/tflite-micro/tflite-micro-memory-planner.mk
 create mode 100644 pkg/tflite-micro/tflite-micro.mk
 create mode 100644 pkg/tflite-micro/tflite-schema.mk

diff --git a/pkg/tflite-micro/Makefile b/pkg/tflite-micro/Makefile
new file mode 100644
index 0000000000..48923cf0b9
--- /dev/null
+++ b/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
diff --git a/pkg/tflite-micro/Makefile.dep b/pkg/tflite-micro/Makefile.dep
new file mode 100644
index 0000000000..e2fa8f5d43
--- /dev/null
+++ b/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
diff --git a/pkg/tflite-micro/Makefile.include b/pkg/tflite-micro/Makefile.include
new file mode 100644
index 0000000000..cab52a8d83
--- /dev/null
+++ b/pkg/tflite-micro/Makefile.include
@@ -0,0 +1,8 @@
+INCLUDES += -I$(PKGDIRBASE)/tflite-micro
+
+CFLAGS += -DTF_LITE_STATIC_MEMORY
+CFLAGS += -DTF_LITE_DISABLE_X86_NEON
+CFLAGS += -DTF_LITE_USE_GLOBAL_CMATH_FUNCTIONS
+CFLAGS += -DTF_LITE_USE_GLOBAL_MIN
+CFLAGS += -DTF_LITE_USE_GLOBAL_MAX
+CFLAGS += -DFLATBUFFERS_LOCALE_INDEPENDENT=0
diff --git a/pkg/tflite-micro/doc.txt b/pkg/tflite-micro/doc.txt
new file mode 100644
index 0000000000..7482f7cea8
--- /dev/null
+++ b/pkg/tflite-micro/doc.txt
@@ -0,0 +1,11 @@
+/**
+ * @defgroup pkg_tflite-micro   Tensorflow Lite Micro
+ * @ingroup  pkg
+ * @brief    Portable C++ library for signal processing and machine learning inferencing
+ *
+ * # License
+ *
+ * Licensed under Apache 2.0.
+ *
+ * @see      https://github.com/tensorflow/tflite-micro
+ */
diff --git a/pkg/tflite-micro/patches/0001-fix-build-with-private-descriptor.patch b/pkg/tflite-micro/patches/0001-fix-build-with-private-descriptor.patch
new file mode 100644
index 0000000000000000000000000000000000000000..4e0fba20f4e3d2456d3ab93564506c6acfd89e01
GIT binary patch
literal 1444
zcmbu9QE!_t6oudYEAC^v1Tc_5LZ_+GO1DalR<&98Fiptd>)?rCWSpc`+x_;LG+Wm#
zt11N{kS@N*NB+*`RI3FHa2y9=o+B52=*Jw3fDXcOTtsmki!l`<j-o-tVXA7l!Up^p
zC`~pu1eE&Z)XF3<sqlu?Tq8_!#wEgA_N(HuP32hDS~6GYcjSZ_Okh?n`w+vV(N-u3
zta3u*WH^EzwZi0TnSaN^B=GfOGJF3Ke9!*|Lf$~Wlof}yG$k}zuB;YtYzr+LqckCo
z;}9@dw@Qmjt-VSb^cJ$v%3I(<>D#QSSY4y`<{FXTX3wi`3HK1d3nHCVhFU9~X>61>
zsBP2V*FA(*#99fg=?YsYN><O2_hD%5R%oQE+XLs25H5wVOXt!6^Y${H@6}FZ&G80U
zI1phmblrRuMB^O6r!*Q2x^vyrAL;dau&2l4V{rW8sBcr!y&|xMqGD|eA2u|n8^jln
zgdu@unOCxaX$S53w>tvFLi0TMQlcqQ+h7TSx`mRh5OTyC80W~Lm34t&mw?^KKo=ia
zGfR|J#j>*b<8G&vD^)>lBb6DI{r;9IAzCzTc0?TF0L)Ia^Rro+U8d7d*J*Zrb~*bz
zInPeg^K_OHcsS~8J#2i{Y=LdVy1hl0;#VbQcRK%j>N}TjlRz=dX%V`vKVp=R#;;1k
zZowDH?{4Wx52F4UdiMDT=MBoV8^6o#^gUsIUbcj{{F9E)kAFK44neK#C`*oT_s}hp
xwSh<7gTfA|>Bd&S0ipDQnLeyoR!LiBdfq<uKBC?JjFNpR+c_hF8wM^V<R`c*<1YXJ

literal 0
HcmV?d00001

diff --git a/pkg/tflite-micro/tflite-c.mk b/pkg/tflite-micro/tflite-c.mk
new file mode 100644
index 0000000000..2a8f160aac
--- /dev/null
+++ b/pkg/tflite-micro/tflite-c.mk
@@ -0,0 +1,5 @@
+MODULE = tflite-c
+
+SRCXXEXT = cc
+
+include $(RIOTBASE)/Makefile.base
diff --git a/pkg/tflite-micro/tflite-core-api.mk b/pkg/tflite-micro/tflite-core-api.mk
new file mode 100644
index 0000000000..4f5d5cbcb6
--- /dev/null
+++ b/pkg/tflite-micro/tflite-core-api.mk
@@ -0,0 +1,5 @@
+MODULE = tflite-core-api
+
+SRCXXEXT = cc
+
+include $(RIOTBASE)/Makefile.base
diff --git a/pkg/tflite-micro/tflite-kernels-internal-reference.mk b/pkg/tflite-micro/tflite-kernels-internal-reference.mk
new file mode 100644
index 0000000000..f27bcb8293
--- /dev/null
+++ b/pkg/tflite-micro/tflite-kernels-internal-reference.mk
@@ -0,0 +1,5 @@
+MODULE = tflite-kernels-internal-reference
+
+SRCXXEXT = cc
+
+include $(RIOTBASE)/Makefile.base
diff --git a/pkg/tflite-micro/tflite-kernels-internal.mk b/pkg/tflite-micro/tflite-kernels-internal.mk
new file mode 100644
index 0000000000..f8b0870fa1
--- /dev/null
+++ b/pkg/tflite-micro/tflite-kernels-internal.mk
@@ -0,0 +1,5 @@
+MODULE = tflite-kernels-internal
+
+SRCXXEXT = cc
+
+include $(RIOTBASE)/Makefile.base
diff --git a/pkg/tflite-micro/tflite-kernels.mk b/pkg/tflite-micro/tflite-kernels.mk
new file mode 100644
index 0000000000..68f07b8326
--- /dev/null
+++ b/pkg/tflite-micro/tflite-kernels.mk
@@ -0,0 +1,5 @@
+MODULE = tflite-kernels
+
+SRCXXEXT = cc
+
+include $(RIOTBASE)/Makefile.base
diff --git a/pkg/tflite-micro/tflite-micro-kernels.mk b/pkg/tflite-micro/tflite-micro-kernels.mk
new file mode 100644
index 0000000000..ce48401755
--- /dev/null
+++ b/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
diff --git a/pkg/tflite-micro/tflite-micro-memory-planner.mk b/pkg/tflite-micro/tflite-micro-memory-planner.mk
new file mode 100644
index 0000000000..a487d1b971
--- /dev/null
+++ b/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
diff --git a/pkg/tflite-micro/tflite-micro.mk b/pkg/tflite-micro/tflite-micro.mk
new file mode 100644
index 0000000000..8e496c97c9
--- /dev/null
+++ b/pkg/tflite-micro/tflite-micro.mk
@@ -0,0 +1,6 @@
+MODULE = tflite-micro
+
+SRCXXEXT = cc
+SRCXXEXCLUDE = $(wildcard *_test.$(SRCXXEXT))
+
+include $(RIOTBASE)/Makefile.base
diff --git a/pkg/tflite-micro/tflite-schema.mk b/pkg/tflite-micro/tflite-schema.mk
new file mode 100644
index 0000000000..91b8ae3baf
--- /dev/null
+++ b/pkg/tflite-micro/tflite-schema.mk
@@ -0,0 +1,5 @@
+MODULE = tflite-schema
+
+SRCXXEXT = cc
+
+include $(RIOTBASE)/Makefile.base