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https://github.com/switchbrew/switch-examples.git
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Added usbdev example. Added comments to usbds example.
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138
usb/usbdev/Makefile
Normal file
138
usb/usbdev/Makefile
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@ -0,0 +1,138 @@
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#---------------------------------------------------------------------------------
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.SUFFIXES:
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#---------------------------------------------------------------------------------
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ifeq ($(strip $(DEVKITA64)),)
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$(error "Please set DEVKITA64 in your environment. export DEVKITA64=<path to>DEVKITA64")
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endif
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TOPDIR ?= $(CURDIR)
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include $(DEVKITA64)/switch_rules
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#---------------------------------------------------------------------------------
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# TARGET is the name of the output
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# BUILD is the directory where object files & intermediate files will be placed
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# SOURCES is a list of directories containing source code
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# DATA is a list of directories containing data files
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# INCLUDES is a list of directories containing header files
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# EXEFS_SRC is the input directory containing data copied into exefs, normally should only contain "main.npdm".
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#---------------------------------------------------------------------------------
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TARGET := $(notdir $(CURDIR))
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BUILD := build
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SOURCES := source
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DATA := data
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INCLUDES := include
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EXEFS_SRC := exefs_src
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#---------------------------------------------------------------------------------
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# options for code generation
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#---------------------------------------------------------------------------------
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ARCH := -march=armv8-a -fPIE
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CFLAGS := -g -Wall -O2 \
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-ffast-math \
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$(ARCH) $(DEFINES)
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CFLAGS += $(INCLUDE)
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CXXFLAGS := $(CFLAGS) -fno-rtti -fno-exceptions -std=gnu++11
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ASFLAGS := -g $(ARCH)
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LDFLAGS = -specs=switch.specs -g $(ARCH) -Wl,-Map,$(notdir $*.map)
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LIBS := -lnx
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#---------------------------------------------------------------------------------
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# list of directories containing libraries, this must be the top level containing
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# include and lib
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#---------------------------------------------------------------------------------
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LIBDIRS := $(PORTLIBS) $(LIBNX)
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#---------------------------------------------------------------------------------
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# no real need to edit anything past this point unless you need to add additional
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# rules for different file extensions
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#---------------------------------------------------------------------------------
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ifneq ($(BUILD),$(notdir $(CURDIR)))
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#---------------------------------------------------------------------------------
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export OUTPUT := $(CURDIR)/$(TARGET)
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export TOPDIR := $(CURDIR)
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export VPATH := $(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
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$(foreach dir,$(DATA),$(CURDIR)/$(dir))
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export DEPSDIR := $(CURDIR)/$(BUILD)
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CFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
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CPPFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
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SFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
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BINFILES := $(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))
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#---------------------------------------------------------------------------------
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# use CXX for linking C++ projects, CC for standard C
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#---------------------------------------------------------------------------------
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ifeq ($(strip $(CPPFILES)),)
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#---------------------------------------------------------------------------------
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export LD := $(CC)
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#---------------------------------------------------------------------------------
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else
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#---------------------------------------------------------------------------------
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export LD := $(CXX)
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#---------------------------------------------------------------------------------
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endif
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#---------------------------------------------------------------------------------
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export OFILES := $(addsuffix .o,$(BINFILES)) \
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$(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)
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export INCLUDE := $(foreach dir,$(INCLUDES),-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 := $(foreach dir,$(LIBDIRS),-L$(dir)/lib)
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export BUILD_EXEFS_SRC := $(TOPDIR)/$(EXEFS_SRC)
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.PHONY: $(BUILD) clean all
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#---------------------------------------------------------------------------------
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all: $(BUILD)
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$(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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#---------------------------------------------------------------------------------
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clean:
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@echo clean ...
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@rm -fr $(BUILD) $(TARGET).pfs0 $(TARGET).nso $(TARGET).elf
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#---------------------------------------------------------------------------------
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else
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DEPENDS := $(OFILES:.o=.d)
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#---------------------------------------------------------------------------------
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# main targets
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#---------------------------------------------------------------------------------
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$(OUTPUT).pfs0 : $(OUTPUT).nso
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$(OUTPUT).nso : $(OUTPUT).elf
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$(OUTPUT).elf : $(OFILES)
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#---------------------------------------------------------------------------------
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# you need a rule like this for each extension you use as binary data
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#---------------------------------------------------------------------------------
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%.bin.o : %.bin
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#---------------------------------------------------------------------------------
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@echo $(notdir $<)
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@$(bin2o)
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-include $(DEPENDS)
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#---------------------------------------------------------------------------------------
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endif
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#---------------------------------------------------------------------------------------
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86
usb/usbdev/source/main.c
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86
usb/usbdev/source/main.c
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#include <string.h>
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#include <stdio.h>
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#include <malloc.h>
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#include <switch.h>
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//Example for usbdev, see libnx usb_dev.h. Switch-as-device<>host USB comms for serial.
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Result usbdev_test(u8 *tmpbuf)
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{
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u32 somepos;
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size_t transfer_sizes[10];
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u32 *tmpbuf32 = (u32*)tmpbuf;
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//Note that usbDevRead/usbDevWrite return the actual-transfer-size.
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memset(transfer_sizes, 0, sizeof(transfer_sizes));
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for(somepos=0; somepos<0x101; somepos++)
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{
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memset(tmpbuf, 0, 0x200);
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char *strptr = "Hello World!\n";
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if(somepos==0 || somepos==0x101)
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{
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transfer_sizes[0] = usbDevWrite(strptr, strlen(strptr));
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}
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else
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{
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tmpbuf[0] = somepos-1;
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usbDevWrite(tmpbuf, 1);
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}
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}
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memset(tmpbuf, 0, 0x210);
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strncpy((char*)tmpbuf, "Hey: ", 4);
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transfer_sizes[1] = usbDevRead(&tmpbuf[4], 0x200);
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tmpbuf32[(4+0x200+0)>>2] = transfer_sizes[0];
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tmpbuf32[(4+0x200+4)>>2] = transfer_sizes[1];
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usbDevWrite(tmpbuf, 4+0x200+8);
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for(somepos=0; somepos<(0x10000>>2); somepos++) {
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tmpbuf32[somepos] = 0x41414141 + somepos;
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}
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transfer_sizes[0] = usbDevWrite(tmpbuf, 0x1fe);
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transfer_sizes[1] = usbDevWrite(tmpbuf, 0x300);
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transfer_sizes[2] = usbDevWrite(tmpbuf, 0x800);
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transfer_sizes[3] = usbDevWrite(tmpbuf, 0x1000);
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transfer_sizes[4] = usbDevWrite(tmpbuf, 0x2200);
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transfer_sizes[5] = usbDevWrite(tmpbuf, 0x10000);
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usbDevWrite(transfer_sizes, sizeof(transfer_sizes));
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svcSleepThread(5000000000);//Delay 5s
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return 0;
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}
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int main(int argc, char **argv)
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{
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Result ret;
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ret = usbDevInitialize();
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if (R_SUCCEEDED(ret)) {
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u8 *tmpbuf = malloc(0x10000);
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if (tmpbuf==NULL) ret = -4;
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if (R_SUCCEEDED(ret)) {
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memset(tmpbuf, 0, 0x10000);
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ret = usbdev_test(tmpbuf);
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}
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usbDevExit();
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}
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if(R_FAILED(ret))fatalSimple(ret);
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svcSleepThread(5000000000);//Delay 5s
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return 0;
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}
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@ -6,6 +6,8 @@
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//Example for usbds, see libnx usb.h. Switch-as-device<>host USB comms.
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//Linux detects this as a serial device.
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//For using serial via usbds in general, see the usbdev example.
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//See libnx usbdev.c/usb.h for getting actual-transfer-size after using usbDsEndpoint_PostBufferAsync.
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Result usbds_test(u8 *tmpbuf)
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{
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