mirror of
https://github.com/afska/gba-link-connection.git
synced 2026-04-24 23:47:51 -05:00
Creating boilerplate code for LinkWireless
This commit is contained in:
Rodrigo Alfonso
parent
8c4da679f4
commit
efea12cd32
284
examples/LinkWireless_demo/Makefile
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284
examples/LinkWireless_demo/Makefile
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#
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# Template tonc makefile
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#
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# Yoinked mostly from DKP's template
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#
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# === SETUP ===========================================================
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# --- No implicit rules ---
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.SUFFIXES:
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# --- Paths ---
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export TONCLIB := ${DEVKITPRO}/libtonc
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# === TONC RULES ======================================================
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#
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# Yes, this is almost, but not quite, completely like to
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# DKP's base_rules and gba_rules
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#
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export PATH := $(DEVKITARM)/bin:$(PATH)
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# --- Executable names ---
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PREFIX ?= arm-none-eabi-
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export CC := $(PREFIX)gcc
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export CXX := $(PREFIX)g++
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export AS := $(PREFIX)as
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export AR := $(PREFIX)ar
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export NM := $(PREFIX)nm
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export OBJCOPY := $(PREFIX)objcopy
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# LD defined in Makefile
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# === LINK / TRANSLATE ================================================
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%.gba : %.elf
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@$(OBJCOPY) -O binary $< $@
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@echo built ... $(notdir $@)
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@gbafix $@ -t$(TITLE)
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#----------------------------------------------------------------------
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%.mb.elf :
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@echo Linking multiboot
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$(LD) -specs=gba_mb.specs $(LDFLAGS) $(OFILES) $(LIBPATHS) $(LIBS) -o $@
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$(NM) -Sn $@ > $(basename $(notdir $@)).map
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#----------------------------------------------------------------------
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%.elf :
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@echo Linking cartridge
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$(LD) -specs=gba.specs $(LDFLAGS) $(OFILES) $(LIBPATHS) $(LIBS) -o $@
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$(NM) -Sn $@ > $(basename $(notdir $@)).map
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#----------------------------------------------------------------------
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%.a :
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@echo $(notdir $@)
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@rm -f $@
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$(AR) -crs $@ $^
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# === OBJECTIFY =======================================================
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%.iwram.o : %.iwram.cpp
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@echo $(notdir $<)
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$(CXX) -MMD -MP -MF $(DEPSDIR)/$*.d $(CXXFLAGS) $(IARCH) -c $< -o $@
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#----------------------------------------------------------------------
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%.iwram.o : %.iwram.c
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@echo $(notdir $<)
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$(CC) -MMD -MP -MF $(DEPSDIR)/$*.d $(CFLAGS) $(IARCH) -c $< -o $@
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#----------------------------------------------------------------------
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%.o : %.cpp
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@echo $(notdir $<)
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$(CXX) -MMD -MP -MF $(DEPSDIR)/$*.d $(CXXFLAGS) $(RARCH) -c $< -o $@
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#----------------------------------------------------------------------
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%.o : %.c
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@echo $(notdir $<)
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$(CC) -MMD -MP -MF $(DEPSDIR)/$*.d $(CFLAGS) $(RARCH) -c $< -o $@
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#----------------------------------------------------------------------
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%.o : %.s
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@echo $(notdir $<)
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$(CC) -MMD -MP -MF $(DEPSDIR)/$*.d -x assembler-with-cpp $(ASFLAGS) -c $< -o $@
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#----------------------------------------------------------------------
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%.o : %.S
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@echo $(notdir $<)
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$(CC) -MMD -MP -MF $(DEPSDIR)/$*.d -x assembler-with-cpp $(ASFLAGS) -c $< -o $@
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#----------------------------------------------------------------------
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# canned command sequence for binary data
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#----------------------------------------------------------------------
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define bin2o
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bin2s $< | $(AS) -o $(@)
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echo "extern const u8" `(echo $(<F) | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`"_end[];" > `(echo $(<F) | tr . _)`.h
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echo "extern const u8" `(echo $(<F) | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`"[];" >> `(echo $(<F) | tr . _)`.h
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echo "extern const u32" `(echo $(<F) | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`_size";" >> `(echo $(<F) | tr . _)`.h
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endef
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# =====================================================================
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# --- Main path ---
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export PATH := $(DEVKITARM)/bin:$(PATH)
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# === PROJECT DETAILS =================================================
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# PROJ : Base project name
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# TITLE : Title for ROM header (12 characters)
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# LIBS : Libraries to use, formatted as list for linker flags
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# BUILD : Directory for build process temporaries. Should NOT be empty!
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# SRCDIRS : List of source file directories
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# DATADIRS : List of data file directories
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# INCDIRS : List of header file directories
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# LIBDIRS : List of library directories
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# General note: use `.' for the current dir, don't leave the lists empty.
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export PROJ ?= $(notdir $(CURDIR))
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TITLE := $(PROJ)
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LIBS := -ltonc -lugba
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BUILD := build
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SRCDIRS := src ../_lib
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DATADIRS := data
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INCDIRS := src
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LIBDIRS := $(TONCLIB) $(PWD)/../_lib/libugba
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# --- switches ---
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bMB := 0 # Multiboot build
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bTEMPS := 0 # Save gcc temporaries (.i and .s files)
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bDEBUG2 := 0 # Generate debug info (bDEBUG2? Not a full DEBUG flag. Yet)
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# === BUILD FLAGS =====================================================
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# This is probably where you can stop editing
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# NOTE: I've noticed that -fgcse and -ftree-loop-optimize sometimes muck
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# up things (gcse seems fond of building masks inside a loop instead of
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# outside them for example). Removing them sometimes helps
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# --- Architecture ---
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ARCH := -mthumb-interwork -mthumb
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RARCH := -mthumb-interwork -mthumb
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IARCH := -mthumb-interwork -marm -mlong-calls
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# --- Main flags ---
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CFLAGS := -mcpu=arm7tdmi -mtune=arm7tdmi -O2
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CFLAGS += -Wall
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CFLAGS += $(INCLUDE)
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CFLAGS += -ffast-math -fno-strict-aliasing
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CXXFLAGS := $(CFLAGS) -fno-rtti -fno-exceptions
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ASFLAGS := $(ARCH) $(INCLUDE)
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LDFLAGS := $(ARCH) -Wl,-Map,$(PROJ).map
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# --- switched additions ----------------------------------------------
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# --- Multiboot ? ---
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ifeq ($(strip $(bMB)), 1)
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TARGET := $(PROJ).mb
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else
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TARGET := $(PROJ)
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endif
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# --- Save temporary files ? ---
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ifeq ($(strip $(bTEMPS)), 1)
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CFLAGS += -save-temps
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CXXFLAGS += -save-temps
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endif
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# --- Debug info ? ---
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ifeq ($(strip $(bDEBUG)), 1)
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CFLAGS += -DDEBUG -g
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CXXFLAGS += -DDEBUG -g
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ASFLAGS += -DDEBUG -g
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LDFLAGS += -g
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else
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CFLAGS += -DNDEBUG
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CXXFLAGS += -DNDEBUG
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ASFLAGS += -DNDEBUG
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endif
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# === BUILD PROC ======================================================
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ifneq ($(BUILD),$(notdir $(CURDIR)))
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# Still in main dir:
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# * Define/export some extra variables
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# * Invoke this file again from the build dir
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# PONDER: what happens if BUILD == "" ?
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export OUTPUT := $(CURDIR)/$(TARGET)
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export VPATH := \
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$(foreach dir, $(SRCDIRS) , $(CURDIR)/$(dir)) \
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$(foreach dir, $(DATADIRS), $(CURDIR)/$(dir))
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export DEPSDIR := $(CURDIR)/$(BUILD)
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# --- List source and data files ---
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CFILES := $(foreach dir, $(SRCDIRS) , $(notdir $(wildcard $(dir)/*.c)))
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CPPFILES := $(foreach dir, $(SRCDIRS) , $(notdir $(wildcard $(dir)/*.cpp)))
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SFILES := $(foreach dir, $(SRCDIRS) , $(notdir $(wildcard $(dir)/*.s)))
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BINFILES := $(foreach dir, $(DATADIRS), $(notdir $(wildcard $(dir)/*.*)))
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# --- Set linker depending on C++ file existence ---
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ifeq ($(strip $(CPPFILES)),)
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export LD := $(CC)
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else
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export LD := $(CXX)
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endif
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# --- Define object file list ---
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export OFILES := $(addsuffix .o, $(BINFILES)) \
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$(CFILES:.c=.o) $(CPPFILES:.cpp=.o) \
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$(SFILES:.s=.o)
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# --- Create include and library search paths ---
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export INCLUDE := $(foreach dir,$(INCDIRS),-I$(CURDIR)/$(dir)) \
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$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
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-I$(CURDIR)/$(BUILD)
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export LIBPATHS := -L$(CURDIR) $(foreach dir,$(LIBDIRS),-L$(dir)/lib)
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# --- Create BUILD if necessary, and run this makefile from there ---
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$(BUILD):
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@[ -d $@ ] || mkdir -p $@
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@make --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
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arm-none-eabi-nm -Sn $(OUTPUT).elf > $(BUILD)/$(TARGET).map
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all : $(BUILD)
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clean:
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@echo clean ...
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@rm -rf $(BUILD) $(TARGET).elf $(TARGET).gba $(TARGET).sav
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else # If we're here, we should be in the BUILD dir
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DEPENDS := $(OFILES:.o=.d)
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# --- Main targets ----
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$(OUTPUT).gba : $(OUTPUT).elf
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$(OUTPUT).elf : $(OFILES)
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-include $(DEPENDS)
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endif # End BUILD switch
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# --- More targets ----------------------------------------------------
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.PHONY: clean rebuild start
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rebuild: clean $(BUILD)
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start:
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start "$(TARGET).gba"
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restart: rebuild start
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# EOF
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41
examples/LinkWireless_demo/src/main.cpp
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41
examples/LinkWireless_demo/src/main.cpp
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#include <tonc.h>
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#include <string>
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// (0) Include the header
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#include "../../_lib/LinkWireless.h"
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void log(std::string text);
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LinkWireless* linkWireless = NULL;
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void init() {
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REG_DISPCNT = DCNT_MODE0 | DCNT_BG0;
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tte_init_se_default(0, BG_CBB(0) | BG_SBB(31));
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}
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int main() {
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init();
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while (true) {
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std::string output = "";
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// u16 keys = ~REG_KEYS & KEY_ANY;
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output += "Testing...";
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// Print
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log(output);
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while (REG_VCOUNT >= 160)
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; // wait till VDraw
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while (REG_VCOUNT < 160)
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; // wait till VBlank
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}
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return 0;
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}
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void log(std::string text) {
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tte_erase_screen();
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tte_write("#{P:0,0}");
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tte_write(text.c_str());
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}
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1
examples/_lib/LinkWireless.h
Symbolic link
1
examples/_lib/LinkWireless.h
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../../lib/LinkWireless.h
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64
lib/LinkWireless.h
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64
lib/LinkWireless.h
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#ifndef LINK_WIRELESS_H
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#define LINK_WIRELESS_H
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// --------------------------------------------------------------------------
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// // TODO: COMPLETE An SPI handler for the Link Port (Normal Mode, 32bits).
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// --------------------------------------------------------------------------
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// // TODO: Usage:
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// - 1) Include this header in your main.cpp file and add:
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// LinkWireless* linkWireless = new LinkWireless();
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// - 2) Initialize the library with:
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// linkWireless->activate();
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// - 3) Exchange 32-bit data with the other end:
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// _________
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// // (this blocks the console indefinitely)
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// - 4) Exchange data with a cancellation callback:
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// u32 data = linkGPIO->transfer(0x1234, []() {
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// u16 keys = ~REG_KEYS & KEY_ANY;
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// return keys & KEY_START;
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// });
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// --------------------------------------------------------------------------
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// considerations:
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// - when using Normal Mode between two GBAs, use a GBC Link Cable!
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// - only use the 2Mbps mode with custom hardware (very short wires)!
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// --------------------------------------------------------------------------
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#include <tonc_core.h>
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// TODO: UPDATE
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#define LINK_WIRELESS_CANCELED 0xffffffff
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#define LINK_WIRELESS_RCNT_NORMAL 0
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#define LINK_WIRELESS_SIOCNT_NORMAL 0
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#define LINK_WIRELESS_RCNT_GENERAL_PURPOSE (1 << 15)
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#define LINK_WIRELESS_SIOCNT_GENERAL_PURPOSE 0
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#define LINK_WIRELESS_BIT_CLOCK 0
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#define LINK_WIRELESS_BIT_CLOCK_SPEED 1
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#define LINK_WIRELESS_BIT_SI 2
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#define LINK_WIRELESS_BIT_SO 3
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#define LINK_WIRELESS_BIT_START 7
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#define LINK_WIRELESS_BIT_LENGTH 12
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#define LINK_WIRELESS_BIT_IRQ 14
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#define LINK_WIRELESS_SET_HIGH(REG, BIT) REG |= 1 << BIT
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#define LINK_WIRELESS_SET_LOW(REG, BIT) REG &= ~(1 << BIT)
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class LinkWireless {
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public:
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bool isActive() { return isEnabled; }
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void activate() {
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// TODO: IMPLEMENT
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isEnabled = true;
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}
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void deactivate() {
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isEnabled = false;
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// TODO: IMPLEMENT
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}
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private:
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bool isEnabled = false;
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};
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extern LinkWireless* linkWireless;
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#endif // LINK_WIRELESS_H
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