1 files changed, 333 insertions, 0 deletions
diff --git a/reset-controller/fw/Makefile b/reset-controller/fw/Makefile
new file mode 100644
index 0000000..3aae9fb
--- /dev/null
+++ b/reset-controller/fw/Makefile
@@ -0,0 +1,333 @@
+
+########################################################################################################################
+# Dependency directories
+########################################################################################################################
+
+CUBE_DIR		?= STM32CubeF4
+CMSIS_DIR 		?= cmsis
+MSPDEBUG_DIR 	?= mspdebug
+LIBSODIUM_DIR	?= libsodium
+TINYAES_DIR		?= tinyaes
+MUSL_DIR		?= musl
+RSLIB_DIR		?= reed_solomon
+
+########################################################################################################################
+# Algorithm parameters
+########################################################################################################################
+
+FMEAS_ADC_SAMPLING_RATE ?= 1000
+FMEAS_ADC_MAX			?= 4096
+FMEAS_FFT_LEN			?= 256
+FMEAS_FFT_WINDOW 		?= gaussian
+FMEAS_FFT_WINDOW_SIGMA 	?= 16.0
+# TODO: validate
+FMEAS_SAMPLING_RATE		?= $(shell echo $(FMEAS_ADC_SAMPLING_RATE) / \($(FMEAS_FFT_LEN)/2\) | bc -l)
+
+DSSS_GOLD_CODE_NBITS 	?= 5
+DSSS_DECIMATION			?= 10
+# TODO maybe auto adjust this based on detection rate?
+DSSS_THRESHOLD_FACTOR	?= 5.0f
+DSSS_WAVELET_WIDTH		?= 7.3
+DSSS_WAVELET_LUT_SIZE	?= 69
+DSSS_FILTER_FC			?= 3e-3
+DSSS_FILTER_ORDER		?= 12
+
+# Transmission symbols: 20 for 20*6=120 bit key + 10 for reed-solomon ECC
+TRANSMISSION_SYMBOLS	?= 30
+PRESIG_STORE_SIZE		?= 3
+
+# will be generated if necessary
+PRESIG_KEYFILE			?= presig_test_key.secret
+
+########################################################################################################################
+# Sources
+########################################################################################################################
+
+C_SOURCES		:= src/main.c
+C_SOURCES		+= src/mspdebug_wrapper.c
+C_SOURCES		+= src/spi_flash.c
+C_SOURCES		+= src/freq_meas.c
+C_SOURCES		+= src/dsss_demod.c
+C_SOURCES		+= src/rslib.c
+C_SOURCES		+= src/crypto.c
+C_SOURCES		+= src/adc.c
+C_SOURCES		+= src/protocol.c
+C_SOURCES		+= src/serial.c
+C_SOURCES		+= src/con_usart.c
+C_SOURCES		+= src/dma_util.c
+C_SOURCES		+= src/gpio_helpers.c
+C_SOURCES		+= tinyprintf/tinyprintf.c
+
+C_SOURCES		+= $(MSPDEBUG_DIR)/drivers/jtaglib.c
+
+CMSIS_SOURCES		+= TransformFunctions/arm_rfft_fast_init_f32.c
+CMSIS_SOURCES		+= TransformFunctions/arm_rfft_fast_f32.c
+CMSIS_SOURCES		+= TransformFunctions/arm_cfft_init_f32.c
+CMSIS_SOURCES		+= TransformFunctions/arm_cfft_f32.c
+CMSIS_SOURCES		+= TransformFunctions/arm_cfft_radix8_f32.c
+CMSIS_SOURCES		+= CommonTables/arm_const_structs.c
+CMSIS_SOURCES		+= CommonTables/arm_common_tables.c
+CMSIS_SOURCES		+= TransformFunctions/arm_bitreversal.c
+CMSIS_SOURCES		+= TransformFunctions/arm_bitreversal2.c
+CMSIS_SOURCES		:= $(addprefix $(CMSIS_DIR)/CMSIS/DSP/Source/,$(CMSIS_SOURCES))
+
+MUSL_SOURCES		+= math/tanhf.c math/atanhf.c
+MUSL_SOURCES		+= math/expm1f.c math/log1pf.c
+MUSL_SOURCES		+= math/expf.c math/exp2f_data.c
+MUSL_SOURCES		+= math/powf.c
+MUSL_SOURCES		+= math/sqrtf.c
+MUSL_SOURCES		+= math/fabsf.c
+MUSL_SOURCES		+= stdlib/abs.c
+MUSL_SOURCES		+= string/memset.c
+MUSL_SOURCES		+= string/memcpy.c
+MUSL_SOURCES		+= string/memcmp.c
+MUSL_SOURCES		+= string/strlen.c
+MUSL_SOURCES		+= math/__math_oflowf.c
+MUSL_SOURCES		+= math/__math_uflowf.c
+MUSL_SOURCES		+= math/__math_xflowf.c
+MUSL_SOURCES		+= math/__math_invalidf.c
+MUSL_SOURCES		+= math/powf_data.c
+MUSL_SOURCES		:= $(addprefix $(MUSL_DIR)/src/,$(MUSL_SOURCES))
+
+RSLIB_SOURCES		+= $(addprefix $(RSLIB_DIR)/src/,rs.c ecc.c berlekamp.c galois.c)
+
+C_SOURCES += $(CMSIS_SOURCES) $(MUSL_SOURCES) $(RSLIB_SOURCES)
+
+CXX_SOURCES			+=
+
+BUILDDIR 	?= build
+BINARY 		:= safetyreset.elf
+LDSCRIPT 	:= stm32f407.ld
+
+########################################################################################################################
+# Build parameters
+########################################################################################################################
+
+PREFIX		?= arm-none-eabi-
+
+DEBUG		?= 1
+
+CC			:= $(PREFIX)gcc
+CXX			:= $(PREFIX)g++
+LD			:= $(PREFIX)gcc
+AR			:= $(PREFIX)ar
+AS			:= $(PREFIX)as
+SIZE		:= $(PREFIX)size
+NM			:= $(PREFIX)nm
+OBJCOPY		:= $(PREFIX)objcopy
+OBJDUMP		:= $(PREFIX)objdump
+GDB			:= $(PREFIX)gdb
+
+HOST_CC				?= $(HOST_PREFIX)gcc
+HOST_CXX			?= $(HOST_PREFIX)g++
+HOST_LD				?= $(HOST_PREFIX)gcc
+HOST_AR				?= $(HOST_PREFIX)ar
+HOST_AS				?= $(HOST_PREFIX)as
+HOST_OBJCOPY		?= $(HOST_PREFIX)objcopy
+HOST_OBJDUMP		?= $(HOST_PREFIX)objdump
+
+PYTHON3 ?= python3
+DOT		?= dot
+
+CMSIS_DIR_ABS 		:= $(abspath $(CMSIS_DIR))
+MSPDEBUG_DIR_ABS 	:= $(abspath $(MSPDEBUG_DIR))
+LIBSODIUM_DIR_ABS	:= $(abspath $(LIBSODIUM_DIR))
+TINYAES_DIR_ABS		:= $(abspath $(TINYAES_DIR))
+MUSL_DIR_ABS		:= $(abspath $(MUSL_DIR))
+
+ARCH_FLAGS		?= -mthumb -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16
+SYSTEM_FLAGS	?= -nostdlib -ffreestanding -nostartfiles
+
+COMMON_CFLAGS		+= -Imspdebug/util -Imspdebug/drivers -Ilevmarq
+COMMON_CFLAGS		+= -I$(CMSIS_DIR_ABS)/CMSIS/DSP/Include -I$(CMSIS_DIR_ABS)/CMSIS/Core/Include 
+CFLAGS				+= -I$(abspath musl_include_shims)
+CFLAGS				+= -Itinyprintf
+COMMON_CFLAGS		+= -I$(BUILDDIR) -Isrc -Itinyaes
+CFLAGS				+= -I$(CUBE_DIR)/Drivers/CMSIS/Device/ST/STM32F4xx/Include
+COMMON_CFLAGS		+= -I$(LIBSODIUM_DIR_ABS)/src/libsodium/include -I$(BUILDDIR)/libsodium/src/libsodium/include -I$(LIBSODIUM_DIR_ABS)/src/libsodium/include/sodium
+COMMON_CFLAGS 		+= -I$(RSLIB_DIR)/src
+
+COMMON_CFLAGS	+= -O0 -std=gnu11 -g -DSTM32F407xx -DSTM32F4 -DDEBUG=$(DEBUG)
+CFLAGS			+= $(ARCH_FLAGS) $(SYSTEM_FLAGS)
+#SIM_CFLAGS		+= -mthumb -mcpu=cortex-m4 -mfloat-abi=soft
+CFLAGS			+= -fno-common -ffunction-sections -fdata-sections
+COMMON_CFLAGS 	+= -DARM_DSP_CONFIG_TABLES -DARM_FFT_ALLOW_TABLES \
+				   -DARM_TABLE_TWIDDLECOEF_F32_128 -DARM_TABLE_BITREVIDX_FLT_128 \
+				   -DARM_TABLE_TWIDDLECOEF_F32_128 -DARM_TABLE_TWIDDLECOEF_RFFT_F32_256
+COMMON_CFLAGS	+= -DDSSS_GOLD_CODE_NBITS=$(DSSS_GOLD_CODE_NBITS)
+COMMON_CFLAGS	+= -DFMEAS_FFT_LEN=$(FMEAS_FFT_LEN)
+COMMON_CFLAGS	+= -DFMEAS_ADC_MAX=$(FMEAS_ADC_MAX)
+COMMON_CFLAGS	+= -DFMEAS_ADC_SAMPLING_RATE=$(FMEAS_ADC_SAMPLING_RATE)
+COMMON_CFLAGS	+= -DFMEAS_FFT_WINDOW_SIGMA=$(FMEAS_FFT_WINDOW_SIGMA)
+COMMON_CFLAGS	+= -DDSSS_DECIMATION=$(DSSS_DECIMATION)
+COMMON_CFLAGS	+= -DDSSS_THRESHOLD_FACTOR=$(DSSS_THRESHOLD_FACTOR)
+COMMON_CFLAGS	+= -DDSSS_WAVELET_WIDTH=$(DSSS_WAVELET_WIDTH)
+COMMON_CFLAGS	+= -DDSSS_WAVELET_LUT_SIZE=$(DSSS_WAVELET_LUT_SIZE)
+COMMON_CFLAGS	+= -DTRANSMISSION_SYMBOLS=$(TRANSMISSION_SYMBOLS)
+COMMON_CFLAGS	+= -DPRESIG_STORE_SIZE=$(PRESIG_STORE_SIZE)
+
+# for musl
+CFLAGS			+= -Dhidden=
+
+SIM_CFLAGS	+= -lm -DSIMULATION
+SIM_CFLAGS	+= -Wall -Wextra -Wpedantic -Wshadow -Wimplicit-function-declaration -Wundef -Wno-unused-parameter
+
+INT_CFLAGS	+= -Wall -Wextra -Wpedantic -Wshadow -Wimplicit-function-declaration -Wundef -Wno-unused-parameter
+INT_CFLAGS	+= -Wredundant-decls -Wmissing-prototypes -Wstrict-prototypes
+
+CXXFLAGS	+= -Os -g
+CXXFLAGS	+= $(ARCH_FLAGS) $(SYSTEM_FLAGS)
+CXXFLAGS	+= -fno-common -ffunction-sections -fdata-sections
+CXXFLAGS	+= -Wall -Wextra -Wshadow -Wundef -Wredundant-decls
+CXXFLAGS	+= -I.
+
+LDFLAGS			+= $(ARCH_FLAGS) $(SYSTEM_FLAGS)
+
+LIBS		+= -lgcc
+LDFLAGS		+= -Wl,--gc-sections
+
+LINKMEM_FLAGS ?= --trim-stubs=startup_stm32f407xx.o --trace-sections .isr_vector --highlight-subdirs $(BUILDDIR)
+
+OBJS := $(addprefix $(BUILDDIR)/,$(C_SOURCES:.c=.o) $(CXX_SOURCES:.cpp=.o))
+
+ALL_OBJS := $(OBJS)
+ALL_OBJS += $(BUILDDIR)/src/startup_stm32f407xx.o
+ALL_OBJS += $(BUILDDIR)/src/system_stm32f4xx.o
+ALL_OBJS += $(BUILDDIR)/libsodium/src/libsodium/.libs/libsodium.a
+ALL_OBJS += $(BUILDDIR)/levmarq/levmarq.o
+ALL_OBJS += $(BUILDDIR)/generated/gold_code_$(DSSS_GOLD_CODE_NBITS).o
+ALL_OBJS += $(BUILDDIR)/generated/fmeas_fft_window.o
+ALL_OBJS += $(BUILDDIR)/generated/dsss_cwt_wavelet.o 
+ALL_OBJS += $(BUILDDIR)/generated/crypto_presig_data.o
+
+########################################################################################################################
+# Rules
+########################################################################################################################
+
+all: binsize
+
+.PHONY: binsize
+binsize: $(BUILDDIR)/$(BINARY) $(BUILDDIR)/$(BINARY:.elf=-symbol-sizes.pdf)
+	$(LD) -T$(LDSCRIPT) $(LDFLAGS) -Wl,--print-memory-usage -o /dev/null $(ALL_OBJS) $(LIBS)
+	@echo
+	@echo "▐▬▬▬▌ SyMbOL sIzE HiGhScORe LiSt ▐▬▬▬▌"
+	$(NM) --print-size --size-sort --radix=d $< | tail -n 20
+
+# $(BUILDDIR)/generated/dsss_butter_filter.h
+src/dsss_demod.c: $(BUILDDIR)/generated/dsss_gold_code.h 
+
+$(BUILDDIR)/generated/dsss_gold_code.h: $(BUILDDIR)/generated/gold_code_$(DSSS_GOLD_CODE_NBITS).h
+	ln -srf $< $@
+
+.PRECIOUS: $(BUILDDIR)/generated/gold_code_%.c $(BUILDDIR)/generated/gold_code_%.h
+$(BUILDDIR)/generated/gold_code_%.c $(BUILDDIR)/generated/gold_code_%.h&: | $(BUILDDIR)/generated
+	$(PYTHON3) tools/gold_code_header_gen.py -v dsss_gold_code_table -c $* > $(BUILDDIR)/generated/gold_code_$*.c
+	$(PYTHON3) tools/gold_code_header_gen.py -v dsss_gold_code_table -h $* > $(BUILDDIR)/generated/gold_code_$*.h
+
+.PRECIOUS: $(BUILDDIR)/generated/fmeas_fft_window.c
+$(BUILDDIR)/generated/fmeas_fft_window.c: | $(BUILDDIR)/generated
+	$(PYTHON3) tools/fft_window_header_gen.py -v fmeas_fft_window_table $(FMEAS_FFT_WINDOW) $(FMEAS_FFT_LEN) $(FMEAS_FFT_WINDOW_SIGMA) > $@
+
+.PRECIOUS: $(BUILDDIR)/generated/dsss_cwt_wavelet.c
+$(BUILDDIR)/generated/dsss_cwt_wavelet.c: | $(BUILDDIR)/generated
+	$(PYTHON3) tools/cwt_wavelet_header_gen.py -v dsss_cwt_wavelet_table $(DSSS_WAVELET_LUT_SIZE) $(DSSS_WAVELET_WIDTH) > $@
+
+.PRECIOUS: $(BUILDDIR)/generated/dsss_butter_filter.h
+$(BUILDDIR)/generated/dsss_butter_filter.h: | $(BUILDDIR)/generated
+	$(PYTHON3) tools/butter_filter_gen.py -m dsss_filter $(DSSS_FILTER_FC) $(FMEAS_SAMPLING_RATE) $(DSSS_FILTER_ORDER) > $@
+
+.PRECIOUS: $(BUILDDIR)/generated/crypto_presig_data.c
+$(BUILDDIR)/generated/crypto_presig_data.c: $(PRESIG_KEYFILE) tools/presig_gen.py | $(BUILDDIR)/generated
+	$(PYTHON3) tools/presig_gen.py $(PRESIG_KEYFILE) prekey > $@
+
+.PRECIOUS: $(PRESIG_KEYFILE)
+$(PRESIG_KEYFILE):
+	$(PYTHON3) tools/presig_gen.py $@ keygen
+
+$(BUILDDIR)/generated: ; mkdir -p $@
+
+.PRECIOUS: $(BUILDDIR)/$(BINARY) 
+$(BUILDDIR)/$(BINARY) $(BUILDDIR)/$(BINARY:.elf=.map) &: $(ALL_OBJS)
+	$(LD) -T$(LDSCRIPT) $(LDFLAGS) -o $@ -Wl,-Map=$(BUILDDIR)/$(BINARY:.elf=.map) $^ $(LIBS)
+
+build/$(BINARY:.elf=-symbol-sizes.dot): $(ALL_OBJS)
+	$(PYTHON3) tools/linkmem.py $(LINKMEM_FLAGS) $(LD) -T$(LDSCRIPT) $(LDFLAGS) $^ $(LIBS) > $@
+
+%.pdf: %.dot
+	$(DOT) -T pdf $< -o $@
+
+%.dot: %.elf
+	r2 -a arm -qc 'aa;agRd' $< 2>/dev/null >$@
+
+tools: $(BUILDDIR)/tools/freq_meas_test
+$(BUILDDIR)/tools/freq_meas_test: tools/freq_meas_test.c src/freq_meas.c levmarq/levmarq.c $(BUILDDIR)/generated/fmeas_fft_window.c $(CMSIS_SOURCES)
+	mkdir -p $(@D)
+	$(HOST_CC) $(COMMON_CFLAGS) $(SIM_CFLAGS) -o $@ $^
+
+tools: $(BUILDDIR)/tools/dsss_demod_test
+$(BUILDDIR)/tools/dsss_demod_test: tools/dsss_demod_test.c src/dsss_demod.c $(BUILDDIR)/generated/dsss_cwt_wavelet.c $(BUILDDIR)/generated/gold_code_$(DSSS_GOLD_CODE_NBITS).c
+	mkdir -p $(@D)
+	$(HOST_CC) $(COMMON_CFLAGS) $(SIM_CFLAGS) -o $@ $^
+
+tools: $(BUILDDIR)/tools/crypto_test
+$(BUILDDIR)/tools/crypto_test: tools/crypto_test.c src/crypto.c tinyaes/aes.c $(BUILDDIR)/generated/crypto_presig_data.c
+	mkdir -p $(@D)
+	$(HOST_CC) $(COMMON_CFLAGS) $(SIM_CFLAGS) -lsodium -o $@ $^
+
+tools: $(BUILDDIR)/tools/e2e_test
+$(BUILDDIR)/tools/e2e_test: tools/e2e_test.c src/freq_meas.c levmarq/levmarq.c $(BUILDDIR)/generated/fmeas_fft_window.c $(CMSIS_SOURCES) src/dsss_demod.c $(BUILDDIR)/generated/dsss_cwt_wavelet.c $(BUILDDIR)/generated/gold_code_$(DSSS_GOLD_CODE_NBITS).c
+	mkdir -p $(@D)
+	$(HOST_CC) $(COMMON_CFLAGS) $(SIM_CFLAGS) -o $@ $^
+
+$(BUILDDIR)/src/%.o: src/%.s
+	mkdir -p $(@D)
+	$(CC) $(COMMON_CFLAGS) $(CFLAGS) $(INT_CFLAGS) -o $@ -c $<
+
+$(BUILDDIR)/src/%.o: src/%.c
+	mkdir -p $(@D)
+	$(CC) $(COMMON_CFLAGS) $(CFLAGS) $(INT_CFLAGS) -o $@ -c $<
+
+$(BUILDDIR)/src/%.o: src/%.cpp
+	mkdir -p $(@D)
+	$(CXX) $(CXXFLAGS) -o $@ -c $<
+
+$(BUILDDIR)/generated/%.o: $(BUILDDIR)/generated/%.c
+	mkdir -p $(@D)
+	$(CC) $(COMMON_CFLAGS) $(CFLAGS) $(INT_CFLAGS) -o $@ -c $<
+
+$(BUILDDIR)/%.o: %.c
+	mkdir -p $(@D)
+	$(CC) $(COMMON_CFLAGS) $(CFLAGS) $(EXT_CFLAGS) -o $@ -c $<
+
+$(BUILDDIR)/src/crypto.o: $(BUILDDIR)/libsodium/src/libsodium/include/sodium/version.h
+
+$(BUILDDIR)/libsodium/src/libsodium/.libs/libsodium.a $(BUILDDIR)/libsodium/src/libsodium/include/sodium/version.h &:
+	mkdir -p $(BUILDDIR)/libsodium
+	cd $(BUILDDIR)/libsodium && CFLAGS="$(COMMON_CFLAGS) $(CFLAGS) -DDEV_MODE=1" $(LIBSODIUM_DIR_ABS)/configure --host=arm-none-eabi && $(MAKE) -j $(shell nproc)
+
+$(BUILDDIR)/tinyaes/aes.o:
+	mkdir -p $(@D)
+	make -C $(@D) -f $(TINYAES_DIR_ABS)/Makefile VPATH=$(TINYAES_DIR_ABS) CFLAGS="$(COMMON_CFLAGS) $(CFLAGS) -c" CC=$(CC) LD=$(LD) AR=$(AR) aes.o
+
+# $(BUILDDIR)/musl/lib/libc.a:
+# 	mkdir -p $(BUILDDIR)/musl
+# 	cd $(BUILDDIR)/musl && CFLAGS="$(SIM_CFLAGS) $(COMMON_CFLAGS)" CC=$(CC) LD=$(LD) AR=$(AR) $(MUSL_DIR_ABS)/configure && $(MAKE) TARGET=arm-linux-musleabihf GCC_CONFIG="-mcpu=cortex-m4 -mfloat-abi=soft" -j $(shell nproc)
+
+build/rslib.so: $(RSLIB_SOURCES) src/rslib.c
+	gcc -fPIC -shared -Wall -Wextra -Wpedantic -std=gnu11 -O0 -g -o $@ -Isrc -I$(RSLIB_DIR)/src $^
+
+clean:
+	rm -rf $(BUILDDIR)/src
+	rm -rf $(BUILDDIR)/generated
+	rm -f $(BUILDDIR)/$(BINARY)
+	rm -f $(BUILDDIR)/$(BINARY:.elf=.map)
+	rm -f $(BUILDDIR)/$(BINARY:.elf=-symbol-sizes.dot)
+	rm -f $(BUILDDIR)/$(BINARY:.elf=-symbol-sizes.pdf)
+	rm -f $(BUILDDIR)/tools/freq_meas_test
+
+mrproper: clean
+	rm -rf build
+
+.PHONY: clean mrproper
+
+-include $(OBJS:.o=.d)