Toyota pedal support (commaai#159)

.circleci/config.yml

@@ -29,9 +29,13 @@ jobs:
           command: |
             docker run panda_build /bin/bash -c "cd /panda/board; make bin"
       - run:
-          name: Build Pedal STM image
+          name: Build Honda Pedal STM image
           command: |
-            docker run panda_build /bin/bash -c "cd /panda/board/pedal; make obj/comma.bin"
+            docker run panda_build /bin/bash -c "cd /panda/board/pedal_honda; make obj/comma.bin"
+      - run:
+          name: Build Toyota Pedal STM image
+          command: |
+            docker run panda_build /bin/bash -c "cd /panda/board/pedal_toyota; make obj/comma.bin"
       - run:
           name: Build NEO STM image
           command: |

board/pedal_toyota/.gitignore

@@ -0,0 +1 @@
+obj/*

board/pedal_toyota/Makefile

@@ -0,0 +1,58 @@
+# :set noet
+PROJ_NAME = comma
+
+CFLAGS  = -O2 -Wall -std=gnu11 -DPEDAL
+CFLAGS += -mlittle-endian -mthumb -mcpu=cortex-m3
+CFLAGS += -msoft-float -DSTM32F2 -DSTM32F205xx
+CFLAGS += -I ../inc -I ../ -I ../../ -nostdlib
+CFLAGS += -T../stm32_flash.ld
+
+STARTUP_FILE = startup_stm32f205xx
+
+CC = arm-none-eabi-gcc
+OBJCOPY = arm-none-eabi-objcopy
+OBJDUMP = arm-none-eabi-objdump
+DFU_UTIL = "dfu-util"
+
+# pedal only uses the debug cert
+CERT = ../../certs/debug
+CFLAGS += "-DALLOW_DEBUG"
+
+canflash: obj/$(PROJ_NAME).bin
+	../../tests/pedal/enter_canloader.py $<
+
+usbflash: obj/$(PROJ_NAME).bin
+	../../tests/pedal/enter_canloader.py; sleep 0.5
+	PYTHONPATH=../../ python -c "from python import Panda; p = [x for x in [Panda(x) for x in Panda.list()] if x.bootstub]; assert(len(p)==1); p[0].flash('obj/$(PROJ_NAME).bin', reconnect=False)"
+
+recover: obj/bootstub.bin obj/$(PROJ_NAME).bin
+	../../tests/pedal/enter_canloader.py --recover; sleep 0.5
+	$(DFU_UTIL) -d 0483:df11 -a 0 -s 0x08004000 -D obj/$(PROJ_NAME).bin
+	$(DFU_UTIL) -d 0483:df11 -a 0 -s 0x08000000:leave -D obj/bootstub.bin
+
+obj/main.o: main.c ../*.h
+	mkdir -p obj
+	$(CC) $(CFLAGS) -o $@ -c $<
+
+obj/bootstub.o: ../bootstub.c ../*.h
+	mkdir -p obj
+	$(CC) $(CFLAGS) -o $@ -c $<
+
+obj/$(STARTUP_FILE).o: ../$(STARTUP_FILE).s
+	$(CC) $(CFLAGS) -o $@ -c $<
+
+obj/%.o: ../../crypto/%.c
+	$(CC) $(CFLAGS) -o $@ -c $<
+
+obj/$(PROJ_NAME).bin: obj/$(STARTUP_FILE).o obj/main.o
+  # hack
+	$(CC) -Wl,--section-start,.isr_vector=0x8004000 $(CFLAGS) -o obj/$(PROJ_NAME).elf $^
+	$(OBJCOPY) -v -O binary obj/$(PROJ_NAME).elf obj/code.bin
+	SETLEN=1 ../../crypto/sign.py obj/code.bin $@ $(CERT)
+
+obj/bootstub.bin: obj/$(STARTUP_FILE).o obj/bootstub.o obj/sha.o obj/rsa.o
+	$(CC) $(CFLAGS) -o obj/bootstub.$(PROJ_NAME).elf $^
+	$(OBJCOPY) -v -O binary obj/bootstub.$(PROJ_NAME).elf $@
+
+clean:
+	rm -f obj/*

board/pedal_toyota/README

@@ -0,0 +1,30 @@
+MOVE ALL FILES TO board/pedal TO FLASH
+
+
+This is the firmware for the comma pedal. It borrows a lot from panda.
+
+The comma pedal is a gas pedal interceptor for Honda/Acura. It allows you to "virtually" press the pedal.
+
+This is the open source software. Note that it is not ready to use yet.
+
+== Test Plan ==
+
+* Startup
+** Confirm STATE_FAULT_STARTUP
+* Timeout
+** Send value
+** Confirm value is output
+** Stop sending messages
+** Confirm value is passthru after 100ms
+** Confirm STATE_FAULT_TIMEOUT
+* Random values
+** Send random 6 byte messages
+** Confirm random values cause passthru
+** Confirm STATE_FAULT_BAD_CHECKSUM
+* Same message lockout
+** Send same message repeated
+** Confirm timeout behavior
+* Don't set enable
+** Confirm no output
+* Set enable and values
+** Confirm output