prep for lua (#2589)

* thread priority

* build

* makefile prep

* call startup

* s

firmware/Makefile

@@ -365,7 +365,7 @@ UINCDIR =
 ULIBDIR =
 
 # List all user libraries here
-ULIBS = -lm
+ULIBS = -lm --specs=nano.specs
 
 #
 # End of user defines

firmware/controllers/controllers.mk

@@ -4,6 +4,7 @@ include $(PROJECT_DIR)/controllers/math/math.mk
 include $(PROJECT_DIR)/controllers/trigger/trigger.mk
 include $(PROJECT_DIR)/controllers/sensors/sensors.mk
 include $(PROJECT_DIR)/controllers/system/system.mk
+include $(PROJECT_DIR)/controllers/lua/lua.mk
 #include $(PROJECT_DIR)/controllers/gauges/gauges.mk
 
 CONTROLLERS_DIR=$(PROJECT_DIR)/controllers

firmware/controllers/lua/lua.mk

@@ -0,0 +1,36 @@
+LUA_DIR=$(CONTROLLERS_DIR)/lua
+LUA_EXT=$(PROJECT_DIR)/ext/lua
+
+# ALLCPPSRC += $(LUA_DIR)/lua.cpp
+ALLINC += $(LUA_DIR) # $(LUA_EXT)/src $(LUA_EXT)/etc
+# ALLCSRC += $(LUA_EXT)/src/lapi.c \
+# 	$(LUA_EXT)/src/lcode.c \
+# 	$(LUA_EXT)/src/ldebug.c \
+# 	$(LUA_EXT)/src/ldo.c \
+# 	$(LUA_EXT)/src/ldump.c \
+# 	$(LUA_EXT)/src/lfunc.c \
+# 	$(LUA_EXT)/src/lgc.c \
+# 	$(LUA_EXT)/src/llex.c \
+# 	$(LUA_EXT)/src/lmem.c \
+# 	$(LUA_EXT)/src/lobject.c \
+# 	$(LUA_EXT)/src/lopcodes.c \
+# 	$(LUA_EXT)/src/lparser.c \
+# 	$(LUA_EXT)/src/lstate.c \
+# 	$(LUA_EXT)/src/lstring.c \
+# 	$(LUA_EXT)/src/ltable.c \
+# 	$(LUA_EXT)/src/ltm.c \
+# 	$(LUA_EXT)/src/lundump.c \
+# 	$(LUA_EXT)/src/lvm.c \
+# 	$(LUA_EXT)/src/lzio.c \
+# 	$(LUA_EXT)/src/lrotable.c \
+# 	$(LUA_EXT)/src/lauxlib.c \
+# 	$(LUA_EXT)/src/lbaselib.c \
+# 	$(LUA_EXT)/src/ldblib.c \
+# 	$(LUA_EXT)/src/lmathlib.c \
+# 	$(LUA_EXT)/src/loslib.c \
+# 	$(LUA_EXT)/src/ltablib.c \
+# 	$(LUA_EXT)/src/lstrlib.c \
+# 	$(LUA_EXT)/src/loadlib.c \
+# 	$(LUA_EXT)/src/linit.c \
+# 	$(LUA_EXT)/src/bit.c \
+# 	$(LUA_EXT)/src/modp_numtoa.c \

firmware/controllers/lua/rusefi_lua.h

@@ -0,0 +1,5 @@
+// This file is not named lua.h as it would collide with firmware/ext/lua/src/lua.h
+
+#pragma once
+
+void startLua();

firmware/controllers/thread_priority.h

@@ -39,7 +39,10 @@
 #define PRIO_HIP9011 (NORMALPRIO - 10)
 
 // These are intentionally low priority so they can't get in the way of anything else
-#define PRIO_FLASH_WRITE LOWPRIO
+#define PRIO_FLASH_WRITE LOWPRIO + 20
 
 // USB mass storage
-#define MSD_THD_PRIO LOWPRIO
+#define MSD_THD_PRIO LOWPRIO + 20
+
+// Lua interpreter must be lowest priority, as the user's code may get stuck in an infinite loop
+#define PRIO_LUA LOWPRIO + 10

firmware/hw_layer/ports/stm32/stm32f4/cfg/chconf.h

@@ -364,7 +364,7 @@
  * @note    The default is @p TRUE.
  */
 #if !defined(CH_CFG_USE_MEMCORE)
-#define CH_CFG_USE_MEMCORE                  FALSE
+#define CH_CFG_USE_MEMCORE                  TRUE
 #endif
 
 /**
@@ -393,7 +393,7 @@
  * @note    Mutexes are recommended.
  */
 #if !defined(CH_CFG_USE_HEAP)
-#define CH_CFG_USE_HEAP                     FALSE
+#define CH_CFG_USE_HEAP                     TRUE
 #endif
 
 /**

firmware/rusefi.cpp

@@ -127,6 +127,7 @@
 #include "mmc_card.h"
 #include "mass_storage_init.h"
 #include "trigger_emulator_algo.h"
+#include "rusefi_lua.h"
 
 #if EFI_HD44780_LCD
 #include "lcd_HD44780.h"
@@ -228,6 +229,10 @@ void runRusEfi(void) {
 	enableTriggerStimulator();
 #endif // HW_CHECK_ALWAYS_STIMULATE
 
+#if EFI_LUA
+	startLua();
+#endif // EFI_LUA
+
 	// Config could be completely bogus - don't start anything else!
 	if (validateConfig()) {
 		initStatusLoop();