Merge pull request #70 from profi200/master

Added CFGU_GetConfigInfoBlk2(), CFGU_GetSystemLanguage(), and an example.

examples/get_system_language/Makefile

@@ -0,0 +1,175 @@
+#---------------------------------------------------------------------------------
+.SUFFIXES:
+#---------------------------------------------------------------------------------
+
+ifeq ($(strip $(DEVKITARM)),)
+$(error "Please set DEVKITARM in your environment. export DEVKITARM=<path to>devkitARM")
+endif
+
+TOPDIR ?= $(CURDIR)
+include $(DEVKITARM)/3ds_rules
+
+#---------------------------------------------------------------------------------
+# TARGET is the name of the output
+# BUILD is the directory where object files & intermediate files will be placed
+# SOURCES is a list of directories containing source code
+# DATA is a list of directories containing data files
+# INCLUDES is a list of directories containing header files
+#
+# NO_SMDH: if set to anything, no SMDH file is generated.
+# APP_TITLE is the name of the app stored in the SMDH file (Optional)
+# APP_DESCRIPTION is the description of the app stored in the SMDH file (Optional)
+# APP_AUTHOR is the author of the app stored in the SMDH file (Optional)
+# ICON is the filename of the icon (.png), relative to the project folder.
+#   If not set, it attempts to use one of the following (in this order):
+#     - <Project name>.png
+#     - icon.png
+#     - <libctru folder>/default_icon.png
+#---------------------------------------------------------------------------------
+TARGET		:=	$(notdir $(CURDIR))
+BUILD		:=	build
+SOURCES		:=	source
+DATA		:=	data
+INCLUDES	:=	include
+
+#---------------------------------------------------------------------------------
+# options for code generation
+#---------------------------------------------------------------------------------
+ARCH	:=	-march=armv6k -mtune=mpcore -mfloat-abi=softfp
+
+CFLAGS	:=	-g -Wall -O2 -mword-relocations \
+			-fomit-frame-pointer -ffast-math \
+			$(ARCH)
+
+CFLAGS	+=	$(INCLUDE) -DARM11 -D_3DS
+
+CXXFLAGS	:= $(CFLAGS) -fno-rtti -fno-exceptions -std=gnu++11
+
+ASFLAGS	:=	-g $(ARCH)
+LDFLAGS	=	-specs=3dsx.specs -g $(ARCH) -Wl,-Map,$(notdir $*.map)
+
+LIBS	:= -lctru -lm
+
+#---------------------------------------------------------------------------------
+# list of directories containing libraries, this must be the top level containing
+# include and lib
+#---------------------------------------------------------------------------------
+LIBDIRS	:= $(CTRULIB)
+
+
+#---------------------------------------------------------------------------------
+# no real need to edit anything past this point unless you need to add additional
+# rules for different file extensions
+#---------------------------------------------------------------------------------
+ifneq ($(BUILD),$(notdir $(CURDIR)))
+#---------------------------------------------------------------------------------
+
+export OUTPUT	:=	$(CURDIR)/$(TARGET)
+export TOPDIR	:=	$(CURDIR)
+
+export VPATH	:=	$(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
+			$(foreach dir,$(DATA),$(CURDIR)/$(dir))
+
+export DEPSDIR	:=	$(CURDIR)/$(BUILD)
+
+CFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
+CPPFILES	:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
+SFILES		:=	$(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
+BINFILES	:=	$(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))
+
+#---------------------------------------------------------------------------------
+# use CXX for linking C++ projects, CC for standard C
+#---------------------------------------------------------------------------------
+ifeq ($(strip $(CPPFILES)),)
+#---------------------------------------------------------------------------------
+	export LD	:=	$(CC)
+#---------------------------------------------------------------------------------
+else
+#---------------------------------------------------------------------------------
+	export LD	:=	$(CXX)
+#---------------------------------------------------------------------------------
+endif
+#---------------------------------------------------------------------------------
+
+export OFILES	:=	$(addsuffix .o,$(BINFILES)) \
+			$(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)
+
+export INCLUDE	:=	$(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
+			$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
+			-I$(CURDIR)/$(BUILD)
+
+export LIBPATHS	:=	$(foreach dir,$(LIBDIRS),-L$(dir)/lib)
+
+ifeq ($(strip $(ICON)),)
+	icons := $(wildcard *.png)
+	ifneq (,$(findstring $(TARGET).png,$(icons)))
+		export APP_ICON := $(TOPDIR)/$(TARGET).png
+	else
+		ifneq (,$(findstring icon.png,$(icons)))
+			export APP_ICON := $(TOPDIR)/icon.png
+		endif
+	endif
+else
+	export APP_ICON := $(TOPDIR)/$(ICON)
+endif
+
+ifeq ($(strip $(NO_SMDH)),)
+	export _3DSXFLAGS += --smdh=$(CURDIR)/$(TARGET).smdh
+endif
+
+.PHONY: $(BUILD) clean all
+
+#---------------------------------------------------------------------------------
+all: $(BUILD)
+
+$(BUILD):
+	@[ -d $@ ] || mkdir -p $@
+	@make --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
+
+#---------------------------------------------------------------------------------
+clean:
+	@echo clean ...
+	@rm -fr $(BUILD) $(TARGET).3dsx $(OUTPUT).smdh $(TARGET).elf
+
+
+#---------------------------------------------------------------------------------
+else
+
+DEPENDS	:=	$(OFILES:.o=.d)
+
+#---------------------------------------------------------------------------------
+# main targets
+#---------------------------------------------------------------------------------
+ifeq ($(strip $(NO_SMDH)),)
+$(OUTPUT).3dsx	:	$(OUTPUT).elf $(OUTPUT).smdh
+else
+$(OUTPUT).3dsx	:	$(OUTPUT).elf
+endif
+
+$(OUTPUT).elf	:	$(OFILES)
+
+#---------------------------------------------------------------------------------
+# you need a rule like this for each extension you use as binary data
+#---------------------------------------------------------------------------------
+%.bin.o	:	%.bin
+#---------------------------------------------------------------------------------
+	@echo $(notdir $<)
+	@$(bin2o)
+
+# WARNING: This is not the right way to do this! TODO: Do it right!
+#---------------------------------------------------------------------------------
+%.vsh.o	:	%.vsh
+#---------------------------------------------------------------------------------
+	@echo $(notdir $<)
+	@python $(AEMSTRO)/aemstro_as.py $< ../$(notdir $<).shbin
+	@bin2s ../$(notdir $<).shbin | $(PREFIX)as -o $@
+	@echo "extern const u8" `(echo $(notdir $<).shbin | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`"_end[];" > `(echo $(notdir $<).shbin | tr . _)`.h
+	@echo "extern const u8" `(echo $(notdir $<).shbin | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`"[];" >> `(echo $(notdir $<).shbin | tr . _)`.h
+	@echo "extern const u32" `(echo $(notdir $<).shbin | sed -e 's/^\([0-9]\)/_\1/' | tr . _)`_size";" >> `(echo $(notdir $<).shbin | tr . _)`.h
+	@rm ../$(notdir $<).shbin
+
+-include $(DEPENDS)
+
+#---------------------------------------------------------------------------------------
+endif
+#---------------------------------------------------------------------------------------

examples/get_system_language/README.md

@@ -0,0 +1,4 @@
+get_system_language
+=======
+
+This is an example on how to get the system language on the 3DS.

examples/get_system_language/source/main.c

@@ -0,0 +1,46 @@
+#include <stdio.h>
+#include <string.h>
+#include <3ds.h>
+
+
+int main(int argc, char** argv)
+{
+	// Initialize services
+	gfxInit();
+	initCfgu();
+
+
+	u8 language = 0;
+	Result res;
+
+	// Init console for text output
+	consoleInit(GFX_BOTTOM, NULL);
+
+	// Read the language field from the config savegame.
+	res = CFGU_GetSystemLanguage(&language);
+
+	// Print return value and language code
+	printf("       Result: 0x%x\n", (int)res);
+	printf("Language code: %d", (int)language);
+
+
+	// Main loop
+	while (aptMainLoop())
+	{
+		hidScanInput();
+
+		u32 kDown = hidKeysDown();
+		if (kDown & KEY_START)
+			break; // break in order to return to hbmenu
+
+		// Flush and swap framebuffers
+		gfxFlushBuffers();
+		gfxSwapBuffers();
+		gspWaitForVBlank();
+	}
+
+	// Exit services
+	exitCfgu();
+	gfxExit();
+	return 0;
+}

libctru/include/3ds/services/cfgu.h

@@ -8,3 +8,5 @@ Result CFGU_GetSystemModel(u8* model);
 Result CFGU_GetModelNintendo2DS(u8* value);
 Result CFGU_GetCountryCodeString(u16 code, u16* string);
 Result CFGU_GetCountryCodeID(u16 string, u16* code);
+Result CFGU_GetConfigInfoBlk2(u32 size, u32 blkID, u8* outData);
+Result CFGU_GetSystemLanguage(u8* language);

libctru/source/services/cfgu.c

@@ -8,85 +8,108 @@ static Handle CFGU_handle = 0;
 
 Result initCfgu()
 {
-    return srvGetServiceHandle(&CFGU_handle, "cfg:u");
+	return srvGetServiceHandle(&CFGU_handle, "cfg:u");
 }
 
 Result exitCfgu()
 {
-    Result ret = svcCloseHandle(CFGU_handle);
+	Result ret = svcCloseHandle(CFGU_handle);
-    CFGU_handle = 0;
+	CFGU_handle = 0;
 
-    return ret;
+	return ret;
 }
 
 Result CFGU_GetRegionCanadaUSA(u8* value)
 {
-    Result ret = 0;
+	Result ret = 0;
-    u32 *cmdbuf = getThreadCommandBuffer();
+	u32 *cmdbuf = getThreadCommandBuffer();
 
-    cmdbuf[0] = 0x00040000;
+	cmdbuf[0] = 0x00040000;
 
-    if((ret = svcSendSyncRequest(CFGU_handle))!=0)return ret;
+	if((ret = svcSendSyncRequest(CFGU_handle))!=0)return ret;
 
-    *value = (u8)cmdbuf[2];
+	*value = (u8)cmdbuf[2];
 
-    return (Result)cmdbuf[1];
+	return (Result)cmdbuf[1];
 }
 
 Result CFGU_GetSystemModel(u8* model)
 {
-    Result ret = 0;
+	Result ret = 0;
-    u32 *cmdbuf = getThreadCommandBuffer();
+	u32 *cmdbuf = getThreadCommandBuffer();
 
-    cmdbuf[0] = 0x00050000;
+	cmdbuf[0] = 0x00050000;
 
-    if((ret = svcSendSyncRequest(CFGU_handle))!=0)return ret;
+	if((ret = svcSendSyncRequest(CFGU_handle))!=0)return ret;
 
-    *model = (u8)cmdbuf[2];
+	*model = (u8)cmdbuf[2];
 
-    return (Result)cmdbuf[1];
+	return (Result)cmdbuf[1];
 }
 
 Result CFGU_GetModelNintendo2DS(u8* value)
 {
-    Result ret = 0;
+	Result ret = 0;
-    u32 *cmdbuf = getThreadCommandBuffer();
+	u32 *cmdbuf = getThreadCommandBuffer();
 
-    cmdbuf[0] = 0x00060000;
+	cmdbuf[0] = 0x00060000;
 
-    if((ret = svcSendSyncRequest(CFGU_handle))!=0)return ret;
+	if((ret = svcSendSyncRequest(CFGU_handle))!=0)return ret;
 
-    *value = (u8)cmdbuf[2];
+	*value = (u8)cmdbuf[2];
 
-    return (Result)cmdbuf[1];
+	return (Result)cmdbuf[1];
 }
 
 Result CFGU_GetCountryCodeString(u16 code, u16* string)
 {
-    Result ret = 0;
+	Result ret = 0;
-    u32 *cmdbuf = getThreadCommandBuffer();
+	u32 *cmdbuf = getThreadCommandBuffer();
 
-    cmdbuf[0] = 0x00090040;
+	cmdbuf[0] = 0x00090040;
-    cmdbuf[1] = (u32)code;
+	cmdbuf[1] = (u32)code;
 
-    if((ret = svcSendSyncRequest(CFGU_handle))!=0)return ret;
+	if((ret = svcSendSyncRequest(CFGU_handle))!=0)return ret;
 
-    *string = (u16)cmdbuf[2];
+	*string = (u16)cmdbuf[2];
 
-    return (Result)cmdbuf[1];
+	return (Result)cmdbuf[1];
 }
 
 Result CFGU_GetCountryCodeID(u16 string, u16* code)
 {
-    Result ret = 0;
+	Result ret = 0;
-    u32 *cmdbuf = getThreadCommandBuffer();
+	u32 *cmdbuf = getThreadCommandBuffer();
 
-    cmdbuf[0] = 0x000A0040;
+	cmdbuf[0] = 0x000A0040;
-    cmdbuf[1] = (u32)string;
+	cmdbuf[1] = (u32)string;
 
-    if((ret = svcSendSyncRequest(CFGU_handle))!=0)return ret;
+	if((ret = svcSendSyncRequest(CFGU_handle))!=0)return ret;
 
-    *code = (u16)cmdbuf[2];
+	*code = (u16)cmdbuf[2];
 
-    return (Result)cmdbuf[1];
+	return (Result)cmdbuf[1];
+}
+
+// See here for block IDs:
+// http://3dbrew.org/wiki/Config_Savegame#Configuration_blocks
+Result CFGU_GetConfigInfoBlk2(u32 size, u32 blkID, u8* outData)
+{
+	Result ret = 0;
+	u32 *cmdbuf = getThreadCommandBuffer();
+
+	cmdbuf[0] = 0x00010082;
+	cmdbuf[1] = size;
+	cmdbuf[2] = blkID;
+	cmdbuf[3] = (size<<4)|12;
+	cmdbuf[4] = (u32)outData;
+
+	if((ret = svcSendSyncRequest(CFGU_handle))!=0)return ret;
+
+	return (Result)cmdbuf[1];
+}
+
+Result CFGU_GetSystemLanguage(u8* language)
+{
+	return CFGU_GetConfigInfoBlk2(1, 0xA0002, language);
 }