@@ -0,0 +1,614 @@ | |||
# Hey Emacs, this is a -*- makefile -*- | |||
#---------------------------------------------------------------------------- | |||
# WinAVR Makefile Template written by Eric B. Weddington, Jörg Wunsch, et al. | |||
# | |||
# Released to the Public Domain | |||
# | |||
# Additional material for this makefile was written by: | |||
# Peter Fleury | |||
# Tim Henigan | |||
# Colin O'Flynn | |||
# Reiner Patommel | |||
# Markus Pfaff | |||
# Sander Pool | |||
# Frederik Rouleau | |||
# Carlos Lamas | |||
# | |||
#---------------------------------------------------------------------------- | |||
# On command line: | |||
# | |||
# make all = Make software. | |||
# | |||
# make clean = Clean out built project files. | |||
# | |||
# make coff = Convert ELF to AVR COFF. | |||
# | |||
# make extcoff = Convert ELF to AVR Extended COFF. | |||
# | |||
# make program = Download the hex file to the device, using avrdude. | |||
# Please customize the avrdude settings below first! | |||
# | |||
# make debug = Start either simulavr or avarice as specified for debugging, | |||
# with avr-gdb or avr-insight as the front end for debugging. | |||
# | |||
# make filename.s = Just compile filename.c into the assembler code only. | |||
# | |||
# make filename.i = Create a preprocessed source file for use in submitting | |||
# bug reports to the GCC project. | |||
# | |||
# To rebuild project do "make clean" then "make all". | |||
#---------------------------------------------------------------------------- | |||
# Target file name (without extension). | |||
TARGET = example | |||
# List C source files here. (C dependencies are automatically generated.) | |||
SRC = $(TARGET).c \ | |||
usb_keyboard_debug.c \ | |||
print.c | |||
# MCU name, you MUST set this to match the board you are using | |||
# type "make clean" after changing this, so all files will be rebuilt | |||
#MCU = at90usb162 # Teensy 1.0 | |||
MCU = atmega32u4 # Teensy 2.0 | |||
#MCU = at90usb646 # Teensy++ 1.0 | |||
#MCU = at90usb1286 # Teensy++ 2.0 | |||
# Processor frequency. | |||
# Normally the first thing your program should do is set the clock prescaler, | |||
# so your program will run at the correct speed. You should also set this | |||
# variable to same clock speed. The _delay_ms() macro uses this, and many | |||
# examples use this variable to calculate timings. Do not add a "UL" here. | |||
F_CPU = 16000000 | |||
# Output format. (can be srec, ihex, binary) | |||
FORMAT = ihex | |||
# Object files directory | |||
# To put object files in current directory, use a dot (.), do NOT make | |||
# this an empty or blank macro! | |||
OBJDIR = . | |||
# List C++ source files here. (C dependencies are automatically generated.) | |||
CPPSRC = | |||
# List Assembler source files here. | |||
# Make them always end in a capital .S. Files ending in a lowercase .s | |||
# will not be considered source files but generated files (assembler | |||
# output from the compiler), and will be deleted upon "make clean"! | |||
# Even though the DOS/Win* filesystem matches both .s and .S the same, | |||
# it will preserve the spelling of the filenames, and gcc itself does | |||
# care about how the name is spelled on its command-line. | |||
ASRC = | |||
# Optimization level, can be [0, 1, 2, 3, s]. | |||
# 0 = turn off optimization. s = optimize for size. | |||
# (Note: 3 is not always the best optimization level. See avr-libc FAQ.) | |||
OPT = s | |||
# Debugging format. | |||
# Native formats for AVR-GCC's -g are dwarf-2 [default] or stabs. | |||
# AVR Studio 4.10 requires dwarf-2. | |||
# AVR [Extended] COFF format requires stabs, plus an avr-objcopy run. | |||
DEBUG = dwarf-2 | |||
# List any extra directories to look for include files here. | |||
# Each directory must be seperated by a space. | |||
# Use forward slashes for directory separators. | |||
# For a directory that has spaces, enclose it in quotes. | |||
EXTRAINCDIRS = | |||
# Compiler flag to set the C Standard level. | |||
# c89 = "ANSI" C | |||
# gnu89 = c89 plus GCC extensions | |||
# c99 = ISO C99 standard (not yet fully implemented) | |||
# gnu99 = c99 plus GCC extensions | |||
CSTANDARD = -std=gnu99 | |||
# Place -D or -U options here for C sources | |||
CDEFS = -DF_CPU=$(F_CPU)UL | |||
# Place -D or -U options here for ASM sources | |||
ADEFS = -DF_CPU=$(F_CPU) | |||
# Place -D or -U options here for C++ sources | |||
CPPDEFS = -DF_CPU=$(F_CPU)UL | |||
#CPPDEFS += -D__STDC_LIMIT_MACROS | |||
#CPPDEFS += -D__STDC_CONSTANT_MACROS | |||
#---------------- Compiler Options C ---------------- | |||
# -g*: generate debugging information | |||
# -O*: optimization level | |||
# -f...: tuning, see GCC manual and avr-libc documentation | |||
# -Wall...: warning level | |||
# -Wa,...: tell GCC to pass this to the assembler. | |||
# -adhlns...: create assembler listing | |||
CFLAGS = -g$(DEBUG) | |||
CFLAGS += $(CDEFS) | |||
CFLAGS += -O$(OPT) | |||
CFLAGS += -funsigned-char | |||
CFLAGS += -funsigned-bitfields | |||
CFLAGS += -ffunction-sections | |||
CFLAGS += -fpack-struct | |||
CFLAGS += -fshort-enums | |||
CFLAGS += -Wall | |||
CFLAGS += -Wstrict-prototypes | |||
#CFLAGS += -mshort-calls | |||
#CFLAGS += -fno-unit-at-a-time | |||
#CFLAGS += -Wundef | |||
#CFLAGS += -Wunreachable-code | |||
#CFLAGS += -Wsign-compare | |||
CFLAGS += -Wa,-adhlns=$(<:%.c=$(OBJDIR)/%.lst) | |||
CFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS)) | |||
CFLAGS += $(CSTANDARD) | |||
#---------------- Compiler Options C++ ---------------- | |||
# -g*: generate debugging information | |||
# -O*: optimization level | |||
# -f...: tuning, see GCC manual and avr-libc documentation | |||
# -Wall...: warning level | |||
# -Wa,...: tell GCC to pass this to the assembler. | |||
# -adhlns...: create assembler listing | |||
CPPFLAGS = -g$(DEBUG) | |||
CPPFLAGS += $(CPPDEFS) | |||
CPPFLAGS += -O$(OPT) | |||
CPPFLAGS += -funsigned-char | |||
CPPFLAGS += -funsigned-bitfields | |||
CPPFLAGS += -fpack-struct | |||
CPPFLAGS += -fshort-enums | |||
CPPFLAGS += -fno-exceptions | |||
CPPFLAGS += -Wall | |||
CPPFLAGS += -Wundef | |||
#CPPFLAGS += -mshort-calls | |||
#CPPFLAGS += -fno-unit-at-a-time | |||
#CPPFLAGS += -Wstrict-prototypes | |||
#CPPFLAGS += -Wunreachable-code | |||
#CPPFLAGS += -Wsign-compare | |||
CPPFLAGS += -Wa,-adhlns=$(<:%.cpp=$(OBJDIR)/%.lst) | |||
CPPFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS)) | |||
#CPPFLAGS += $(CSTANDARD) | |||
#---------------- Assembler Options ---------------- | |||
# -Wa,...: tell GCC to pass this to the assembler. | |||
# -adhlns: create listing | |||
# -gstabs: have the assembler create line number information; note that | |||
# for use in COFF files, additional information about filenames | |||
# and function names needs to be present in the assembler source | |||
# files -- see avr-libc docs [FIXME: not yet described there] | |||
# -listing-cont-lines: Sets the maximum number of continuation lines of hex | |||
# dump that will be displayed for a given single line of source input. | |||
ASFLAGS = $(ADEFS) -Wa,-adhlns=$(<:%.S=$(OBJDIR)/%.lst),-gstabs,--listing-cont-lines=100 | |||
#---------------- Library Options ---------------- | |||
# Minimalistic printf version | |||
PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min | |||
# Floating point printf version (requires MATH_LIB = -lm below) | |||
PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt | |||
# If this is left blank, then it will use the Standard printf version. | |||
PRINTF_LIB = | |||
#PRINTF_LIB = $(PRINTF_LIB_MIN) | |||
#PRINTF_LIB = $(PRINTF_LIB_FLOAT) | |||
# Minimalistic scanf version | |||
SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min | |||
# Floating point + %[ scanf version (requires MATH_LIB = -lm below) | |||
SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_flt | |||
# If this is left blank, then it will use the Standard scanf version. | |||
SCANF_LIB = | |||
#SCANF_LIB = $(SCANF_LIB_MIN) | |||
#SCANF_LIB = $(SCANF_LIB_FLOAT) | |||
MATH_LIB = -lm | |||
# List any extra directories to look for libraries here. | |||
# Each directory must be seperated by a space. | |||
# Use forward slashes for directory separators. | |||
# For a directory that has spaces, enclose it in quotes. | |||
EXTRALIBDIRS = | |||
#---------------- External Memory Options ---------------- | |||
# 64 KB of external RAM, starting after internal RAM (ATmega128!), | |||
# used for variables (.data/.bss) and heap (malloc()). | |||
#EXTMEMOPTS = -Wl,-Tdata=0x801100,--defsym=__heap_end=0x80ffff | |||
# 64 KB of external RAM, starting after internal RAM (ATmega128!), | |||
# only used for heap (malloc()). | |||
#EXTMEMOPTS = -Wl,--section-start,.data=0x801100,--defsym=__heap_end=0x80ffff | |||
EXTMEMOPTS = | |||
#---------------- Linker Options ---------------- | |||
# -Wl,...: tell GCC to pass this to linker. | |||
# -Map: create map file | |||
# --cref: add cross reference to map file | |||
LDFLAGS = -Wl,-Map=$(TARGET).map,--cref | |||
LDFLAGS += -Wl,--relax | |||
LDFLAGS += -Wl,--gc-sections | |||
LDFLAGS += $(EXTMEMOPTS) | |||
LDFLAGS += $(patsubst %,-L%,$(EXTRALIBDIRS)) | |||
LDFLAGS += $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB) | |||
#LDFLAGS += -T linker_script.x | |||
#---------------- Programming Options (avrdude) ---------------- | |||
# Programming hardware | |||
# Type: avrdude -c ? | |||
# to get a full listing. | |||
# | |||
AVRDUDE_PROGRAMMER = stk500v2 | |||
# com1 = serial port. Use lpt1 to connect to parallel port. | |||
AVRDUDE_PORT = com1 # programmer connected to serial device | |||
AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex | |||
#AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep | |||
# Uncomment the following if you want avrdude's erase cycle counter. | |||
# Note that this counter needs to be initialized first using -Yn, | |||
# see avrdude manual. | |||
#AVRDUDE_ERASE_COUNTER = -y | |||
# Uncomment the following if you do /not/ wish a verification to be | |||
# performed after programming the device. | |||
#AVRDUDE_NO_VERIFY = -V | |||
# Increase verbosity level. Please use this when submitting bug | |||
# reports about avrdude. See <http://savannah.nongnu.org/projects/avrdude> | |||
# to submit bug reports. | |||
#AVRDUDE_VERBOSE = -v -v | |||
AVRDUDE_FLAGS = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER) | |||
AVRDUDE_FLAGS += $(AVRDUDE_NO_VERIFY) | |||
AVRDUDE_FLAGS += $(AVRDUDE_VERBOSE) | |||
AVRDUDE_FLAGS += $(AVRDUDE_ERASE_COUNTER) | |||
#---------------- Debugging Options ---------------- | |||
# For simulavr only - target MCU frequency. | |||
DEBUG_MFREQ = $(F_CPU) | |||
# Set the DEBUG_UI to either gdb or insight. | |||
# DEBUG_UI = gdb | |||
DEBUG_UI = insight | |||
# Set the debugging back-end to either avarice, simulavr. | |||
DEBUG_BACKEND = avarice | |||
#DEBUG_BACKEND = simulavr | |||
# GDB Init Filename. | |||
GDBINIT_FILE = __avr_gdbinit | |||
# When using avarice settings for the JTAG | |||
JTAG_DEV = /dev/com1 | |||
# Debugging port used to communicate between GDB / avarice / simulavr. | |||
DEBUG_PORT = 4242 | |||
# Debugging host used to communicate between GDB / avarice / simulavr, normally | |||
# just set to localhost unless doing some sort of crazy debugging when | |||
# avarice is running on a different computer. | |||
DEBUG_HOST = localhost | |||
#============================================================================ | |||
# Define programs and commands. | |||
SHELL = sh | |||
CC = avr-gcc | |||
OBJCOPY = avr-objcopy | |||
OBJDUMP = avr-objdump | |||
SIZE = avr-size | |||
AR = avr-ar rcs | |||
NM = avr-nm | |||
AVRDUDE = avrdude | |||
REMOVE = rm -f | |||
REMOVEDIR = rm -rf | |||
COPY = cp | |||
WINSHELL = cmd | |||
# Define Messages | |||
# English | |||
MSG_ERRORS_NONE = Errors: none | |||
MSG_BEGIN = -------- begin -------- | |||
MSG_END = -------- end -------- | |||
MSG_SIZE_BEFORE = Size before: | |||
MSG_SIZE_AFTER = Size after: | |||
MSG_COFF = Converting to AVR COFF: | |||
MSG_EXTENDED_COFF = Converting to AVR Extended COFF: | |||
MSG_FLASH = Creating load file for Flash: | |||
MSG_EEPROM = Creating load file for EEPROM: | |||
MSG_EXTENDED_LISTING = Creating Extended Listing: | |||
MSG_SYMBOL_TABLE = Creating Symbol Table: | |||
MSG_LINKING = Linking: | |||
MSG_COMPILING = Compiling C: | |||
MSG_COMPILING_CPP = Compiling C++: | |||
MSG_ASSEMBLING = Assembling: | |||
MSG_CLEANING = Cleaning project: | |||
MSG_CREATING_LIBRARY = Creating library: | |||
# Define all object files. | |||
OBJ = $(SRC:%.c=$(OBJDIR)/%.o) $(CPPSRC:%.cpp=$(OBJDIR)/%.o) $(ASRC:%.S=$(OBJDIR)/%.o) | |||
# Define all listing files. | |||
LST = $(SRC:%.c=$(OBJDIR)/%.lst) $(CPPSRC:%.cpp=$(OBJDIR)/%.lst) $(ASRC:%.S=$(OBJDIR)/%.lst) | |||
# Compiler flags to generate dependency files. | |||
GENDEPFLAGS = -MMD -MP -MF .dep/$(@F).d | |||
# Combine all necessary flags and optional flags. | |||
# Add target processor to flags. | |||
ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS) $(GENDEPFLAGS) | |||
ALL_CPPFLAGS = -mmcu=$(MCU) -I. -x c++ $(CPPFLAGS) $(GENDEPFLAGS) | |||
ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS) | |||
# Default target. | |||
all: begin gccversion sizebefore build sizeafter end | |||
# Change the build target to build a HEX file or a library. | |||
build: elf hex eep lss sym | |||
#build: lib | |||
elf: $(TARGET).elf | |||
hex: $(TARGET).hex | |||
eep: $(TARGET).eep | |||
lss: $(TARGET).lss | |||
sym: $(TARGET).sym | |||
LIBNAME=lib$(TARGET).a | |||
lib: $(LIBNAME) | |||
# Eye candy. | |||
# AVR Studio 3.x does not check make's exit code but relies on | |||
# the following magic strings to be generated by the compile job. | |||
begin: | |||
@echo | |||
@echo $(MSG_BEGIN) | |||
end: | |||
@echo $(MSG_END) | |||
@echo | |||
# Display size of file. | |||
HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex | |||
#ELFSIZE = $(SIZE) --mcu=$(MCU) --format=avr $(TARGET).elf | |||
ELFSIZE = $(SIZE) $(TARGET).elf | |||
sizebefore: | |||
@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \ | |||
2>/dev/null; echo; fi | |||
sizeafter: | |||
@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_AFTER); $(ELFSIZE); \ | |||
2>/dev/null; echo; fi | |||
# Display compiler version information. | |||
gccversion : | |||
@$(CC) --version | |||
# Program the device. | |||
program: $(TARGET).hex $(TARGET).eep | |||
$(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM) | |||
# Generate avr-gdb config/init file which does the following: | |||
# define the reset signal, load the target file, connect to target, and set | |||
# a breakpoint at main(). | |||
gdb-config: | |||
@$(REMOVE) $(GDBINIT_FILE) | |||
@echo define reset >> $(GDBINIT_FILE) | |||
@echo SIGNAL SIGHUP >> $(GDBINIT_FILE) | |||
@echo end >> $(GDBINIT_FILE) | |||
@echo file $(TARGET).elf >> $(GDBINIT_FILE) | |||
@echo target remote $(DEBUG_HOST):$(DEBUG_PORT) >> $(GDBINIT_FILE) | |||
ifeq ($(DEBUG_BACKEND),simulavr) | |||
@echo load >> $(GDBINIT_FILE) | |||
endif | |||
@echo break main >> $(GDBINIT_FILE) | |||
debug: gdb-config $(TARGET).elf | |||
ifeq ($(DEBUG_BACKEND), avarice) | |||
@echo Starting AVaRICE - Press enter when "waiting to connect" message displays. | |||
@$(WINSHELL) /c start avarice --jtag $(JTAG_DEV) --erase --program --file \ | |||
$(TARGET).elf $(DEBUG_HOST):$(DEBUG_PORT) | |||
@$(WINSHELL) /c pause | |||
else | |||
@$(WINSHELL) /c start simulavr --gdbserver --device $(MCU) --clock-freq \ | |||
$(DEBUG_MFREQ) --port $(DEBUG_PORT) | |||
endif | |||
@$(WINSHELL) /c start avr-$(DEBUG_UI) --command=$(GDBINIT_FILE) | |||
# Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB. | |||
COFFCONVERT = $(OBJCOPY) --debugging | |||
COFFCONVERT += --change-section-address .data-0x800000 | |||
COFFCONVERT += --change-section-address .bss-0x800000 | |||
COFFCONVERT += --change-section-address .noinit-0x800000 | |||
COFFCONVERT += --change-section-address .eeprom-0x810000 | |||
coff: $(TARGET).elf | |||
@echo | |||
@echo $(MSG_COFF) $(TARGET).cof | |||
$(COFFCONVERT) -O coff-avr $< $(TARGET).cof | |||
extcoff: $(TARGET).elf | |||
@echo | |||
@echo $(MSG_EXTENDED_COFF) $(TARGET).cof | |||
$(COFFCONVERT) -O coff-ext-avr $< $(TARGET).cof | |||
# Create final output files (.hex, .eep) from ELF output file. | |||
%.hex: %.elf | |||
@echo | |||
@echo $(MSG_FLASH) $@ | |||
$(OBJCOPY) -O $(FORMAT) -R .eeprom -R .fuse -R .lock -R .signature $< $@ | |||
%.eep: %.elf | |||
@echo | |||
@echo $(MSG_EEPROM) $@ | |||
-$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \ | |||
--change-section-lma .eeprom=0 --no-change-warnings -O $(FORMAT) $< $@ || exit 0 | |||
# Create extended listing file from ELF output file. | |||
%.lss: %.elf | |||
@echo | |||
@echo $(MSG_EXTENDED_LISTING) $@ | |||
$(OBJDUMP) -h -S -z $< > $@ | |||
# Create a symbol table from ELF output file. | |||
%.sym: %.elf | |||
@echo | |||
@echo $(MSG_SYMBOL_TABLE) $@ | |||
$(NM) -n $< > $@ | |||
# Create library from object files. | |||
.SECONDARY : $(TARGET).a | |||
.PRECIOUS : $(OBJ) | |||
%.a: $(OBJ) | |||
@echo | |||
@echo $(MSG_CREATING_LIBRARY) $@ | |||
$(AR) $@ $(OBJ) | |||
# Link: create ELF output file from object files. | |||
.SECONDARY : $(TARGET).elf | |||
.PRECIOUS : $(OBJ) | |||
%.elf: $(OBJ) | |||
@echo | |||
@echo $(MSG_LINKING) $@ | |||
$(CC) $(ALL_CFLAGS) $^ --output $@ $(LDFLAGS) | |||
# Compile: create object files from C source files. | |||
$(OBJDIR)/%.o : %.c | |||
@echo | |||
@echo $(MSG_COMPILING) $< | |||
$(CC) -c $(ALL_CFLAGS) $< -o $@ | |||
# Compile: create object files from C++ source files. | |||
$(OBJDIR)/%.o : %.cpp | |||
@echo | |||
@echo $(MSG_COMPILING_CPP) $< | |||
$(CC) -c $(ALL_CPPFLAGS) $< -o $@ | |||
# Compile: create assembler files from C source files. | |||
%.s : %.c | |||
$(CC) -S $(ALL_CFLAGS) $< -o $@ | |||
# Compile: create assembler files from C++ source files. | |||
%.s : %.cpp | |||
$(CC) -S $(ALL_CPPFLAGS) $< -o $@ | |||
# Assemble: create object files from assembler source files. | |||
$(OBJDIR)/%.o : %.S | |||
@echo | |||
@echo $(MSG_ASSEMBLING) $< | |||
$(CC) -c $(ALL_ASFLAGS) $< -o $@ | |||
# Create preprocessed source for use in sending a bug report. | |||
%.i : %.c | |||
$(CC) -E -mmcu=$(MCU) -I. $(CFLAGS) $< -o $@ | |||
# Target: clean project. | |||
clean: begin clean_list end | |||
clean_list : | |||
@echo | |||
@echo $(MSG_CLEANING) | |||
$(REMOVE) $(TARGET).hex | |||
$(REMOVE) $(TARGET).eep | |||
$(REMOVE) $(TARGET).cof | |||
$(REMOVE) $(TARGET).elf | |||
$(REMOVE) $(TARGET).map | |||
$(REMOVE) $(TARGET).sym | |||
$(REMOVE) $(TARGET).lss | |||
$(REMOVE) $(SRC:%.c=$(OBJDIR)/%.o) | |||
$(REMOVE) $(SRC:%.c=$(OBJDIR)/%.lst) | |||
$(REMOVE) $(SRC:.c=.s) | |||
$(REMOVE) $(SRC:.c=.d) | |||
$(REMOVE) $(SRC:.c=.i) | |||
$(REMOVEDIR) .dep | |||
# Create object files directory | |||
$(shell mkdir $(OBJDIR) 2>/dev/null) | |||
# Include the dependency files. | |||
-include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*) | |||
# Listing of phony targets. | |||
.PHONY : all begin finish end sizebefore sizeafter gccversion \ | |||
build elf hex eep lss sym coff extcoff \ | |||
clean clean_list program debug gdb-config |
@@ -0,0 +1,137 @@ | |||
/* Keyboard example with debug channel, for Teensy USB Development Board | |||
* http://www.pjrc.com/teensy/usb_keyboard.html | |||
* Copyright (c) 2008 PJRC.COM, LLC | |||
* | |||
* Permission is hereby granted, free of charge, to any person obtaining a copy | |||
* of this software and associated documentation files (the "Software"), to deal | |||
* in the Software without restriction, including without limitation the rights | |||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |||
* copies of the Software, and to permit persons to whom the Software is | |||
* furnished to do so, subject to the following conditions: | |||
* | |||
* The above copyright notice and this permission notice shall be included in | |||
* all copies or substantial portions of the Software. | |||
* | |||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |||
* THE SOFTWARE. | |||
*/ | |||
#include <avr/io.h> | |||
#include <avr/pgmspace.h> | |||
#include <avr/interrupt.h> | |||
#include <util/delay.h> | |||
#include "usb_keyboard_debug.h" | |||
#include "print.h" | |||
#define LED_CONFIG (DDRD |= (1<<6)) | |||
#define LED_ON (PORTD &= ~(1<<6)) | |||
#define LED_OFF (PORTD |= (1<<6)) | |||
#define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n)) | |||
uint8_t number_keys[10]= | |||
{KEY_0,KEY_1,KEY_2,KEY_3,KEY_4,KEY_5,KEY_6,KEY_7,KEY_8,KEY_9}; | |||
uint16_t idle_count=0; | |||
int main(void) | |||
{ | |||
uint8_t b, d, mask, i, reset_idle; | |||
uint8_t b_prev=0xFF, d_prev=0xFF; | |||
// set for 16 MHz clock | |||
CPU_PRESCALE(0); | |||
// Configure all port B and port D pins as inputs with pullup resistors. | |||
// See the "Using I/O Pins" page for details. | |||
// http://www.pjrc.com/teensy/pins.html | |||
DDRD = 0x00; | |||
DDRB = 0x00; | |||
PORTB = 0xFF; | |||
PORTD = 0xFF; | |||
// Initialize the USB, and then wait for the host to set configuration. | |||
// If the Teensy is powered without a PC connected to the USB port, | |||
// this will wait forever. | |||
usb_init(); | |||
while (!usb_configured()) /* wait */ ; | |||
// Wait an extra second for the PC's operating system to load drivers | |||
// and do whatever it does to actually be ready for input | |||
_delay_ms(1000); | |||
// Configure timer 0 to generate a timer overflow interrupt every | |||
// 256*1024 clock cycles, or approx 61 Hz when using 16 MHz clock | |||
// This demonstrates how to use interrupts to implement a simple | |||
// inactivity timeout. | |||
TCCR0A = 0x00; | |||
TCCR0B = 0x05; | |||
TIMSK0 = (1<<TOIE0); | |||
print("Begin keyboard example program\n"); | |||
print("All Port B or Port D pins are inputs with pullup resistors.\n"); | |||
print("Any connection to ground on Port B or D pins will result in\n"); | |||
print("keystrokes sent to the PC (and debug messages here).\n"); | |||
while (1) { | |||
// read all port B and port D pins | |||
b = PINB; | |||
d = PIND; | |||
// check if any pins are low, but were high previously | |||
mask = 1; | |||
reset_idle = 0; | |||
for (i=0; i<8; i++) { | |||
if (((b & mask) == 0) && (b_prev & mask) != 0) { | |||
usb_keyboard_press(KEY_B, KEY_SHIFT); | |||
usb_keyboard_press(number_keys[i], 0); | |||
print("Port B, bit "); | |||
phex(i); | |||
print("\n"); | |||
reset_idle = 1; | |||
} | |||
if (((d & mask) == 0) && (d_prev & mask) != 0) { | |||
usb_keyboard_press(KEY_D, KEY_SHIFT); | |||
usb_keyboard_press(number_keys[i], 0); | |||
print("Port D, bit "); | |||
phex(i); | |||
print("\n"); | |||
reset_idle = 1; | |||
} | |||
mask = mask << 1; | |||
} | |||
// if any keypresses were detected, reset the idle counter | |||
if (reset_idle) { | |||
// variables shared with interrupt routines must be | |||
// accessed carefully so the interrupt routine doesn't | |||
// try to use the variable in the middle of our access | |||
cli(); | |||
idle_count = 0; | |||
sei(); | |||
} | |||
// now the current pins will be the previous, and | |||
// wait a short delay so we're not highly sensitive | |||
// to mechanical "bounce". | |||
b_prev = b; | |||
d_prev = d; | |||
_delay_ms(2); | |||
} | |||
} | |||
// This interrupt routine is run approx 61 times per second. | |||
// A very simple inactivity timeout is implemented, where we | |||
// will send a space character and print a message to the | |||
// hid_listen debug message window. | |||
ISR(TIMER0_OVF_vect) | |||
{ | |||
idle_count++; | |||
if (idle_count > 61 * 8) { | |||
idle_count = 0; | |||
print("Timer Event :)\n"); | |||
usb_keyboard_press(KEY_SPACE, 0); | |||
} | |||
} | |||
@@ -0,0 +1,62 @@ | |||
/* Very basic print functions, intended to be used with usb_debug_only.c | |||
* http://www.pjrc.com/teensy/ | |||
* Copyright (c) 2008 PJRC.COM, LLC | |||
* | |||
* Permission is hereby granted, free of charge, to any person obtaining a copy | |||
* of this software and associated documentation files (the "Software"), to deal | |||
* in the Software without restriction, including without limitation the rights | |||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |||
* copies of the Software, and to permit persons to whom the Software is | |||
* furnished to do so, subject to the following conditions: | |||
* | |||
* The above copyright notice and this permission notice shall be included in | |||
* all copies or substantial portions of the Software. | |||
* | |||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |||
* THE SOFTWARE. | |||
*/ | |||
// Version 1.0: Initial Release | |||
#include <avr/io.h> | |||
#include <avr/pgmspace.h> | |||
#include "print.h" | |||
void print_P(const char *s) | |||
{ | |||
char c; | |||
while (1) { | |||
c = pgm_read_byte(s++); | |||
if (!c) break; | |||
if (c == '\n') usb_debug_putchar('\r'); | |||
usb_debug_putchar(c); | |||
} | |||
} | |||
void phex1(unsigned char c) | |||
{ | |||
usb_debug_putchar(c + ((c < 10) ? '0' : 'A' - 10)); | |||
} | |||
void phex(unsigned char c) | |||
{ | |||
phex1(c >> 4); | |||
phex1(c & 15); | |||
} | |||
void phex16(unsigned int i) | |||
{ | |||
phex(i >> 8); | |||
phex(i); | |||
} | |||
@@ -0,0 +1,16 @@ | |||
#ifndef print_h__ | |||
#define print_h__ | |||
#include <avr/pgmspace.h> | |||
#include "usb_keyboard_debug.h" | |||
// this macro allows you to write print("some text") and | |||
// the string is automatically placed into flash memory :) | |||
#define print(s) print_P(PSTR(s)) | |||
#define pchar(c) usb_debug_putchar(c) | |||
void print_P(const char *s); | |||
void phex(unsigned char c); | |||
void phex16(unsigned int i); | |||
#endif |
@@ -0,0 +1,750 @@ | |||
/* USB Keyboard Plus Debug Channel Example for Teensy USB Development Board | |||
* http://www.pjrc.com/teensy/usb_keyboard.html | |||
* Copyright (c) 2009 PJRC.COM, LLC | |||
* | |||
* Permission is hereby granted, free of charge, to any person obtaining a copy | |||
* of this software and associated documentation files (the "Software"), to deal | |||
* in the Software without restriction, including without limitation the rights | |||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |||
* copies of the Software, and to permit persons to whom the Software is | |||
* furnished to do so, subject to the following conditions: | |||
* | |||
* The above copyright notice and this permission notice shall be included in | |||
* all copies or substantial portions of the Software. | |||
* | |||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |||
* THE SOFTWARE. | |||
*/ | |||
// Version 1.0: Initial Release | |||
// Version 1.1: Add support for Teensy 2.0 | |||
#define USB_SERIAL_PRIVATE_INCLUDE | |||
#include "usb_keyboard_debug.h" | |||
/************************************************************************** | |||
* | |||
* Configurable Options | |||
* | |||
**************************************************************************/ | |||
// You can change these to give your code its own name. | |||
#define STR_MANUFACTURER L"MfgName" | |||
#define STR_PRODUCT L"Keyboard" | |||
// Mac OS-X and Linux automatically load the correct drivers. On | |||
// Windows, even though the driver is supplied by Microsoft, an | |||
// INF file is needed to load the driver. These numbers need to | |||
// match the INF file. | |||
#define VENDOR_ID 0x16C0 | |||
#define PRODUCT_ID 0x047D | |||
// USB devices are supposed to implment a halt feature, which is | |||
// rarely (if ever) used. If you comment this line out, the halt | |||
// code will be removed, saving 102 bytes of space (gcc 4.3.0). | |||
// This is not strictly USB compliant, but works with all major | |||
// operating systems. | |||
#define SUPPORT_ENDPOINT_HALT | |||
/************************************************************************** | |||
* | |||
* Endpoint Buffer Configuration | |||
* | |||
**************************************************************************/ | |||
#define ENDPOINT0_SIZE 32 | |||
#define KEYBOARD_INTERFACE 0 | |||
#define KEYBOARD_ENDPOINT 3 | |||
#define KEYBOARD_SIZE 8 | |||
#define KEYBOARD_BUFFER EP_DOUBLE_BUFFER | |||
#define DEBUG_INTERFACE 1 | |||
#define DEBUG_TX_ENDPOINT 4 | |||
#define DEBUG_TX_SIZE 32 | |||
#define DEBUG_TX_BUFFER EP_DOUBLE_BUFFER | |||
static const uint8_t PROGMEM endpoint_config_table[] = { | |||
0, | |||
0, | |||
1, EP_TYPE_INTERRUPT_IN, EP_SIZE(KEYBOARD_SIZE) | KEYBOARD_BUFFER, | |||
1, EP_TYPE_INTERRUPT_IN, EP_SIZE(DEBUG_TX_SIZE) | DEBUG_TX_BUFFER | |||
}; | |||
/************************************************************************** | |||
* | |||
* Descriptor Data | |||
* | |||
**************************************************************************/ | |||
// Descriptors are the data that your computer reads when it auto-detects | |||
// this USB device (called "enumeration" in USB lingo). The most commonly | |||
// changed items are editable at the top of this file. Changing things | |||
// in here should only be done by those who've read chapter 9 of the USB | |||
// spec and relevant portions of any USB class specifications! | |||
static uint8_t PROGMEM device_descriptor[] = { | |||
18, // bLength | |||
1, // bDescriptorType | |||
0x00, 0x02, // bcdUSB | |||
0, // bDeviceClass | |||
0, // bDeviceSubClass | |||
0, // bDeviceProtocol | |||
ENDPOINT0_SIZE, // bMaxPacketSize0 | |||
LSB(VENDOR_ID), MSB(VENDOR_ID), // idVendor | |||
LSB(PRODUCT_ID), MSB(PRODUCT_ID), // idProduct | |||
0x00, 0x01, // bcdDevice | |||
1, // iManufacturer | |||
2, // iProduct | |||
0, // iSerialNumber | |||
1 // bNumConfigurations | |||
}; | |||
// Keyboard Protocol 1, HID 1.11 spec, Appendix B, page 59-60 | |||
static uint8_t PROGMEM keyboard_hid_report_desc[] = { | |||
0x05, 0x01, // Usage Page (Generic Desktop), | |||
0x09, 0x06, // Usage (Keyboard), | |||
0xA1, 0x01, // Collection (Application), | |||
0x75, 0x01, // Report Size (1), | |||
0x95, 0x08, // Report Count (8), | |||
0x05, 0x07, // Usage Page (Key Codes), | |||
0x19, 0xE0, // Usage Minimum (224), | |||
0x29, 0xE7, // Usage Maximum (231), | |||
0x15, 0x00, // Logical Minimum (0), | |||
0x25, 0x01, // Logical Maximum (1), | |||
0x81, 0x02, // Input (Data, Variable, Absolute), ;Modifier byte | |||
0x95, 0x01, // Report Count (1), | |||
0x75, 0x08, // Report Size (8), | |||
0x81, 0x03, // Input (Constant), ;Reserved byte | |||
0x95, 0x05, // Report Count (5), | |||
0x75, 0x01, // Report Size (1), | |||
0x05, 0x08, // Usage Page (LEDs), | |||
0x19, 0x01, // Usage Minimum (1), | |||
0x29, 0x05, // Usage Maximum (5), | |||
0x91, 0x02, // Output (Data, Variable, Absolute), ;LED report | |||
0x95, 0x01, // Report Count (1), | |||
0x75, 0x03, // Report Size (3), | |||
0x91, 0x03, // Output (Constant), ;LED report padding | |||
0x95, 0x06, // Report Count (6), | |||
0x75, 0x08, // Report Size (8), | |||
0x15, 0x00, // Logical Minimum (0), | |||
0x25, 0x68, // Logical Maximum(104), | |||
0x05, 0x07, // Usage Page (Key Codes), | |||
0x19, 0x00, // Usage Minimum (0), | |||
0x29, 0x68, // Usage Maximum (104), | |||
0x81, 0x00, // Input (Data, Array), | |||
0xc0 // End Collection | |||
}; | |||
static uint8_t PROGMEM debug_hid_report_desc[] = { | |||
0x06, 0x31, 0xFF, // Usage Page 0xFF31 (vendor defined) | |||
0x09, 0x74, // Usage 0x74 | |||
0xA1, 0x53, // Collection 0x53 | |||
0x75, 0x08, // report size = 8 bits | |||
0x15, 0x00, // logical minimum = 0 | |||
0x26, 0xFF, 0x00, // logical maximum = 255 | |||
0x95, DEBUG_TX_SIZE, // report count | |||
0x09, 0x75, // usage | |||
0x81, 0x02, // Input (array) | |||
0xC0 // end collection | |||
}; | |||
#define CONFIG1_DESC_SIZE (9+9+9+7+9+9+7) | |||
#define KEYBOARD_HID_DESC_OFFSET (9+9) | |||
#define DEBUG_HID_DESC_OFFSET (9+9+9+7+9) | |||
static uint8_t PROGMEM config1_descriptor[CONFIG1_DESC_SIZE] = { | |||
// configuration descriptor, USB spec 9.6.3, page 264-266, Table 9-10 | |||
9, // bLength; | |||
2, // bDescriptorType; | |||
LSB(CONFIG1_DESC_SIZE), // wTotalLength | |||
MSB(CONFIG1_DESC_SIZE), | |||
2, // bNumInterfaces | |||
1, // bConfigurationValue | |||
0, // iConfiguration | |||
0xC0, // bmAttributes | |||
50, // bMaxPower | |||
// interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12 | |||
9, // bLength | |||
4, // bDescriptorType | |||
KEYBOARD_INTERFACE, // bInterfaceNumber | |||
0, // bAlternateSetting | |||
1, // bNumEndpoints | |||
0x03, // bInterfaceClass (0x03 = HID) | |||
0x01, // bInterfaceSubClass (0x01 = Boot) | |||
0x01, // bInterfaceProtocol (0x01 = Keyboard) | |||
0, // iInterface | |||
// HID interface descriptor, HID 1.11 spec, section 6.2.1 | |||
9, // bLength | |||
0x21, // bDescriptorType | |||
0x11, 0x01, // bcdHID | |||
0, // bCountryCode | |||
1, // bNumDescriptors | |||
0x22, // bDescriptorType | |||
sizeof(keyboard_hid_report_desc), // wDescriptorLength | |||
0, | |||
// endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13 | |||
7, // bLength | |||
5, // bDescriptorType | |||
KEYBOARD_ENDPOINT | 0x80, // bEndpointAddress | |||
0x03, // bmAttributes (0x03=intr) | |||
KEYBOARD_SIZE, 0, // wMaxPacketSize | |||
1, // bInterval | |||
// interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12 | |||
9, // bLength | |||
4, // bDescriptorType | |||
DEBUG_INTERFACE, // bInterfaceNumber | |||
0, // bAlternateSetting | |||
1, // bNumEndpoints | |||
0x03, // bInterfaceClass (0x03 = HID) | |||
0x00, // bInterfaceSubClass | |||
0x00, // bInterfaceProtocol | |||
0, // iInterface | |||
// HID interface descriptor, HID 1.11 spec, section 6.2.1 | |||
9, // bLength | |||
0x21, // bDescriptorType | |||
0x11, 0x01, // bcdHID | |||
0, // bCountryCode | |||
1, // bNumDescriptors | |||
0x22, // bDescriptorType | |||
sizeof(debug_hid_report_desc), // wDescriptorLength | |||
0, | |||
// endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13 | |||
7, // bLength | |||
5, // bDescriptorType | |||
DEBUG_TX_ENDPOINT | 0x80, // bEndpointAddress | |||
0x03, // bmAttributes (0x03=intr) | |||
DEBUG_TX_SIZE, 0, // wMaxPacketSize | |||
1 // bInterval | |||
}; | |||
// If you're desperate for a little extra code memory, these strings | |||
// can be completely removed if iManufacturer, iProduct, iSerialNumber | |||
// in the device desciptor are changed to zeros. | |||
struct usb_string_descriptor_struct { | |||
uint8_t bLength; | |||
uint8_t bDescriptorType; | |||
int16_t wString[]; | |||
}; | |||
static struct usb_string_descriptor_struct PROGMEM string0 = { | |||
4, | |||
3, | |||
{0x0409} | |||
}; | |||
static struct usb_string_descriptor_struct PROGMEM string1 = { | |||
sizeof(STR_MANUFACTURER), | |||
3, | |||
STR_MANUFACTURER | |||
}; | |||
static struct usb_string_descriptor_struct PROGMEM string2 = { | |||
sizeof(STR_PRODUCT), | |||
3, | |||
STR_PRODUCT | |||
}; | |||
// This table defines which descriptor data is sent for each specific | |||
// request from the host (in wValue and wIndex). | |||
static struct descriptor_list_struct { | |||
uint16_t wValue; | |||
uint16_t wIndex; | |||
const uint8_t *addr; | |||
uint8_t length; | |||
} PROGMEM descriptor_list[] = { | |||
{0x0100, 0x0000, device_descriptor, sizeof(device_descriptor)}, | |||
{0x0200, 0x0000, config1_descriptor, sizeof(config1_descriptor)}, | |||
{0x2200, KEYBOARD_INTERFACE, keyboard_hid_report_desc, sizeof(keyboard_hid_report_desc)}, | |||
{0x2100, KEYBOARD_INTERFACE, config1_descriptor+KEYBOARD_HID_DESC_OFFSET, 9}, | |||
{0x2200, DEBUG_INTERFACE, debug_hid_report_desc, sizeof(debug_hid_report_desc)}, | |||
{0x2100, DEBUG_INTERFACE, config1_descriptor+DEBUG_HID_DESC_OFFSET, 9}, | |||
{0x0300, 0x0000, (const uint8_t *)&string0, 4}, | |||
{0x0301, 0x0409, (const uint8_t *)&string1, sizeof(STR_MANUFACTURER)}, | |||
{0x0302, 0x0409, (const uint8_t *)&string2, sizeof(STR_PRODUCT)} | |||
}; | |||
#define NUM_DESC_LIST (sizeof(descriptor_list)/sizeof(struct descriptor_list_struct)) | |||
/************************************************************************** | |||
* | |||
* Variables - these are the only non-stack RAM usage | |||
* | |||
**************************************************************************/ | |||
// zero when we are not configured, non-zero when enumerated | |||
static volatile uint8_t usb_configuration=0; | |||
// the time remaining before we transmit any partially full | |||
// packet, or send a zero length packet. | |||
static volatile uint8_t debug_flush_timer=0; | |||
// which modifier keys are currently pressed | |||
// 1=left ctrl, 2=left shift, 4=left alt, 8=left gui | |||
// 16=right ctrl, 32=right shift, 64=right alt, 128=right gui | |||
uint8_t keyboard_modifier_keys=0; | |||
// which keys are currently pressed, up to 6 keys may be down at once | |||
uint8_t keyboard_keys[6]={0,0,0,0,0,0}; | |||
// protocol setting from the host. We use exactly the same report | |||
// either way, so this variable only stores the setting since we | |||
// are required to be able to report which setting is in use. | |||
static uint8_t keyboard_protocol=1; | |||
// the idle configuration, how often we send the report to the | |||
// host (ms * 4) even when it hasn't changed | |||
static uint8_t keyboard_idle_config=125; | |||
// count until idle timeout | |||
static uint8_t keyboard_idle_count=0; | |||
// 1=num lock, 2=caps lock, 4=scroll lock, 8=compose, 16=kana | |||
volatile uint8_t keyboard_leds=0; | |||
/************************************************************************** | |||
* | |||
* Public Functions - these are the API intended for the user | |||
* | |||
**************************************************************************/ | |||
// initialize USB | |||
void usb_init(void) | |||
{ | |||
HW_CONFIG(); | |||
USB_FREEZE(); // enable USB | |||
PLL_CONFIG(); // config PLL | |||
while (!(PLLCSR & (1<<PLOCK))) ; // wait for PLL lock | |||
USB_CONFIG(); // start USB clock | |||
UDCON = 0; // enable attach resistor | |||
usb_configuration = 0; | |||
UDIEN = (1<<EORSTE)|(1<<SOFE); | |||
sei(); | |||
} | |||
// return 0 if the USB is not configured, or the configuration | |||
// number selected by the HOST | |||
uint8_t usb_configured(void) | |||
{ | |||
return usb_configuration; | |||
} | |||
// perform a single keystroke | |||
int8_t usb_keyboard_press(uint8_t key, uint8_t modifier) | |||
{ | |||
int8_t r; | |||
keyboard_modifier_keys = modifier; | |||
keyboard_keys[0] = key; | |||
r = usb_keyboard_send(); | |||
if (r) return r; | |||
keyboard_modifier_keys = 0; | |||
keyboard_keys[0] = 0; | |||
return usb_keyboard_send(); | |||
} | |||
// send the contents of keyboard_keys and keyboard_modifier_keys | |||
int8_t usb_keyboard_send(void) | |||
{ | |||
uint8_t i, intr_state, timeout; | |||
if (!usb_configuration) return -1; | |||
intr_state = SREG; | |||
cli(); | |||
UENUM = KEYBOARD_ENDPOINT; | |||
timeout = UDFNUML + 50; | |||
while (1) { | |||
// are we ready to transmit? | |||
if (UEINTX & (1<<RWAL)) break; | |||
SREG = intr_state; | |||
// has the USB gone offline? | |||
if (!usb_configuration) return -1; | |||
// have we waited too long? | |||
if (UDFNUML == timeout) return -1; | |||
// get ready to try checking again | |||
intr_state = SREG; | |||
cli(); | |||
UENUM = KEYBOARD_ENDPOINT; | |||
} | |||
UEDATX = keyboard_modifier_keys; | |||
UEDATX = 0; | |||
for (i=0; i<6; i++) { | |||
UEDATX = keyboard_keys[i]; | |||
} | |||
UEINTX = 0x3A; | |||
keyboard_idle_count = 0; | |||
SREG = intr_state; | |||
return 0; | |||
} | |||
// transmit a character. 0 returned on success, -1 on error | |||
int8_t usb_debug_putchar(uint8_t c) | |||
{ | |||
static uint8_t previous_timeout=0; | |||
uint8_t timeout, intr_state; | |||
// if we're not online (enumerated and configured), error | |||
if (!usb_configuration) return -1; | |||
// interrupts are disabled so these functions can be | |||
// used from the main program or interrupt context, | |||
// even both in the same program! | |||
intr_state = SREG; | |||
cli(); | |||
UENUM = DEBUG_TX_ENDPOINT; | |||
// if we gave up due to timeout before, don't wait again | |||
if (previous_timeout) { | |||
if (!(UEINTX & (1<<RWAL))) { | |||
SREG = intr_state; | |||
return -1; | |||
} | |||
previous_timeout = 0; | |||
} | |||
// wait for the FIFO to be ready to accept data | |||
timeout = UDFNUML + 4; | |||
while (1) { | |||
// are we ready to transmit? | |||
if (UEINTX & (1<<RWAL)) break; | |||
SREG = intr_state; | |||
// have we waited too long? | |||
if (UDFNUML == timeout) { | |||
previous_timeout = 1; | |||
return -1; | |||
} | |||
// has the USB gone offline? | |||
if (!usb_configuration) return -1; | |||
// get ready to try checking again | |||
intr_state = SREG; | |||
cli(); | |||
UENUM = DEBUG_TX_ENDPOINT; | |||
} | |||
// actually write the byte into the FIFO | |||
UEDATX = c; | |||
// if this completed a packet, transmit it now! | |||
if (!(UEINTX & (1<<RWAL))) { | |||
UEINTX = 0x3A; | |||
debug_flush_timer = 0; | |||
} else { | |||
debug_flush_timer = 2; | |||
} | |||
SREG = intr_state; | |||
return 0; | |||
} | |||
// immediately transmit any buffered output. | |||
void usb_debug_flush_output(void) | |||
{ | |||
uint8_t intr_state; | |||
intr_state = SREG; | |||
cli(); | |||
if (debug_flush_timer) { | |||
UENUM = DEBUG_TX_ENDPOINT; | |||
while ((UEINTX & (1<<RWAL))) { | |||
UEDATX = 0; | |||
} | |||
UEINTX = 0x3A; | |||
debug_flush_timer = 0; | |||
} | |||
SREG = intr_state; | |||
} | |||
/************************************************************************** | |||
* | |||
* Private Functions - not intended for general user consumption.... | |||
* | |||
**************************************************************************/ | |||
// USB Device Interrupt - handle all device-level events | |||
// the transmit buffer flushing is triggered by the start of frame | |||
// | |||
ISR(USB_GEN_vect) | |||
{ | |||
uint8_t intbits, t, i; | |||
static uint8_t div4=0; | |||
intbits = UDINT; | |||
UDINT = 0; | |||
if (intbits & (1<<EORSTI)) { | |||
UENUM = 0; | |||
UECONX = 1; | |||
UECFG0X = EP_TYPE_CONTROL; | |||
UECFG1X = EP_SIZE(ENDPOINT0_SIZE) | EP_SINGLE_BUFFER; | |||
UEIENX = (1<<RXSTPE); | |||
usb_configuration = 0; | |||
} | |||
if ((intbits & (1<<SOFI)) && usb_configuration) { | |||
t = debug_flush_timer; | |||
if (t) { | |||
debug_flush_timer = -- t; | |||
if (!t) { | |||
UENUM = DEBUG_TX_ENDPOINT; | |||
while ((UEINTX & (1<<RWAL))) { | |||
UEDATX = 0; | |||
} | |||
UEINTX = 0x3A; | |||
} | |||
} | |||
if (keyboard_idle_config && (++div4 & 3) == 0) { | |||
UENUM = KEYBOARD_ENDPOINT; | |||
if (UEINTX & (1<<RWAL)) { | |||
keyboard_idle_count++; | |||
if (keyboard_idle_count == keyboard_idle_config) { | |||
keyboard_idle_count = 0; | |||
UEDATX = keyboard_modifier_keys; | |||
UEDATX = 0; | |||
for (i=0; i<6; i++) { | |||
UEDATX = keyboard_keys[i]; | |||
} | |||
UEINTX = 0x3A; | |||
} | |||
} | |||
} | |||
} | |||
} | |||
// Misc functions to wait for ready and send/receive packets | |||
static inline void usb_wait_in_ready(void) | |||
{ | |||
while (!(UEINTX & (1<<TXINI))) ; | |||
} | |||
static inline void usb_send_in(void) | |||
{ | |||
UEINTX = ~(1<<TXINI); | |||
} | |||
static inline void usb_wait_receive_out(void) | |||
{ | |||
while (!(UEINTX & (1<<RXOUTI))) ; | |||
} | |||
static inline void usb_ack_out(void) | |||
{ | |||
UEINTX = ~(1<<RXOUTI); | |||
} | |||
// USB Endpoint Interrupt - endpoint 0 is handled here. The | |||
// other endpoints are manipulated by the user-callable | |||
// functions, and the start-of-frame interrupt. | |||
// | |||
ISR(USB_COM_vect) | |||
{ | |||
uint8_t intbits; | |||
const uint8_t *list; | |||
const uint8_t *cfg; | |||
uint8_t i, n, len, en; | |||
uint8_t bmRequestType; | |||
uint8_t bRequest; | |||
uint16_t wValue; | |||
uint16_t wIndex; | |||
uint16_t wLength; | |||
uint16_t desc_val; | |||
const uint8_t *desc_addr; | |||
uint8_t desc_length; | |||
UENUM = 0; | |||
intbits = UEINTX; | |||
if (intbits & (1<<RXSTPI)) { | |||
bmRequestType = UEDATX; | |||
bRequest = UEDATX; | |||
wValue = UEDATX; | |||
wValue |= (UEDATX << 8); | |||
wIndex = UEDATX; | |||
wIndex |= (UEDATX << 8); | |||
wLength = UEDATX; | |||
wLength |= (UEDATX << 8); | |||
UEINTX = ~((1<<RXSTPI) | (1<<RXOUTI) | (1<<TXINI)); | |||
if (bRequest == GET_DESCRIPTOR) { | |||
list = (const uint8_t *)descriptor_list; | |||
for (i=0; ; i++) { | |||
if (i >= NUM_DESC_LIST) { | |||
UECONX = (1<<STALLRQ)|(1<<EPEN); //stall | |||
return; | |||
} | |||
desc_val = pgm_read_word(list); | |||
if (desc_val != wValue) { | |||
list += sizeof(struct descriptor_list_struct); | |||
continue; | |||
} | |||
list += 2; | |||
desc_val = pgm_read_word(list); | |||
if (desc_val != wIndex) { | |||
list += sizeof(struct descriptor_list_struct)-2; | |||
continue; | |||
} | |||
list += 2; | |||
desc_addr = (const uint8_t *)pgm_read_word(list); | |||
list += 2; | |||
desc_length = pgm_read_byte(list); | |||
break; | |||
} | |||
len = (wLength < 256) ? wLength : 255; | |||
if (len > desc_length) len = desc_length; | |||
do { | |||
// wait for host ready for IN packet | |||
do { | |||
i = UEINTX; | |||
} while (!(i & ((1<<TXINI)|(1<<RXOUTI)))); | |||
if (i & (1<<RXOUTI)) return; // abort | |||
// send IN packet | |||
n = len < ENDPOINT0_SIZE ? len : ENDPOINT0_SIZE; | |||
for (i = n; i; i--) { | |||
UEDATX = pgm_read_byte(desc_addr++); | |||
} | |||
len -= n; | |||
usb_send_in(); | |||
} while (len || n == ENDPOINT0_SIZE); | |||
return; | |||
} | |||
if (bRequest == SET_ADDRESS) { | |||
usb_send_in(); | |||
usb_wait_in_ready(); | |||
UDADDR = wValue | (1<<ADDEN); | |||
return; | |||
} | |||
if (bRequest == SET_CONFIGURATION && bmRequestType == 0) { | |||
usb_configuration = wValue; | |||
usb_send_in(); | |||
cfg = endpoint_config_table; | |||
for (i=1; i<5; i++) { | |||
UENUM = i; | |||
en = pgm_read_byte(cfg++); | |||
UECONX = en; | |||
if (en) { | |||
UECFG0X = pgm_read_byte(cfg++); | |||
UECFG1X = pgm_read_byte(cfg++); | |||
} | |||
} | |||
UERST = 0x1E; | |||
UERST = 0; | |||
return; | |||
} | |||
if (bRequest == GET_CONFIGURATION && bmRequestType == 0x80) { | |||
usb_wait_in_ready(); | |||
UEDATX = usb_configuration; | |||
usb_send_in(); | |||
return; | |||
} | |||
if (bRequest == GET_STATUS) { | |||
usb_wait_in_ready(); | |||
i = 0; | |||
#ifdef SUPPORT_ENDPOINT_HALT | |||
if (bmRequestType == 0x82) { | |||
UENUM = wIndex; | |||
if (UECONX & (1<<STALLRQ)) i = 1; | |||
UENUM = 0; | |||
} | |||
#endif | |||
UEDATX = i; | |||
UEDATX = 0; | |||
usb_send_in(); | |||
return; | |||
} | |||
#ifdef SUPPORT_ENDPOINT_HALT | |||
if ((bRequest == CLEAR_FEATURE || bRequest == SET_FEATURE) | |||
&& bmRequestType == 0x02 && wValue == 0) { | |||
i = wIndex & 0x7F; | |||
if (i >= 1 && i <= MAX_ENDPOINT) { | |||
usb_send_in(); | |||
UENUM = i; | |||
if (bRequest == SET_FEATURE) { | |||
UECONX = (1<<STALLRQ)|(1<<EPEN); | |||
} else { | |||
UECONX = (1<<STALLRQC)|(1<<RSTDT)|(1<<EPEN); | |||
UERST = (1 << i); | |||
UERST = 0; | |||
} | |||
return; | |||
} | |||
} | |||
#endif | |||
if (wIndex == KEYBOARD_INTERFACE) { | |||
if (bmRequestType == 0xA1) { | |||
if (bRequest == HID_GET_REPORT) { | |||
usb_wait_in_ready(); | |||
UEDATX = keyboard_modifier_keys; | |||
UEDATX = 0; | |||
for (i=0; i<6; i++) { | |||
UEDATX = keyboard_keys[i]; | |||
} | |||
usb_send_in(); | |||
return; | |||
} | |||
if (bRequest == HID_GET_IDLE) { | |||
usb_wait_in_ready(); | |||
UEDATX = keyboard_idle_config; | |||
usb_send_in(); | |||
return; | |||
} | |||
if (bRequest == HID_GET_PROTOCOL) { | |||
usb_wait_in_ready(); | |||
UEDATX = keyboard_protocol; | |||
usb_send_in(); | |||
return; | |||
} | |||
} | |||
if (bmRequestType == 0x21) { | |||
if (bRequest == HID_SET_REPORT) { | |||
usb_wait_receive_out(); | |||
keyboard_leds = UEDATX; | |||
usb_ack_out(); | |||
usb_send_in(); | |||
return; | |||
} | |||
if (bRequest == HID_SET_IDLE) { | |||
keyboard_idle_config = (wValue >> 8); | |||
keyboard_idle_count = 0; | |||
//usb_wait_in_ready(); | |||
usb_send_in(); | |||
return; | |||
} | |||
if (bRequest == HID_SET_PROTOCOL) { | |||
keyboard_protocol = wValue; | |||
//usb_wait_in_ready(); | |||
usb_send_in(); | |||
return; | |||
} | |||
} | |||
} | |||
if (wIndex == DEBUG_INTERFACE) { | |||
if (bRequest == HID_GET_REPORT && bmRequestType == 0xA1) { | |||
len = wLength; | |||
do { | |||
// wait for host ready for IN packet | |||
do { | |||
i = UEINTX; | |||
} while (!(i & ((1<<TXINI)|(1<<RXOUTI)))); | |||
if (i & (1<<RXOUTI)) return; // abort | |||
// send IN packet | |||
n = len < ENDPOINT0_SIZE ? len : ENDPOINT0_SIZE; | |||
for (i = n; i; i--) { | |||
UEDATX = 0; | |||
} | |||
len -= n; | |||
usb_send_in(); | |||
} while (len || n == ENDPOINT0_SIZE); | |||
return; | |||
} | |||
} | |||
} | |||
UECONX = (1<<STALLRQ) | (1<<EPEN); // stall | |||
} | |||
@@ -0,0 +1,203 @@ | |||
#ifndef usb_serial_h__ | |||
#define usb_serial_h__ | |||
#include <stdint.h> | |||
void usb_init(void); // initialize everything | |||
uint8_t usb_configured(void); // is the USB port configured | |||
int8_t usb_keyboard_press(uint8_t key, uint8_t modifier); | |||
int8_t usb_keyboard_send(void); | |||
extern uint8_t keyboard_modifier_keys; | |||
extern uint8_t keyboard_keys[6]; | |||
extern volatile uint8_t keyboard_leds; | |||
int8_t usb_debug_putchar(uint8_t c); // transmit a character | |||
void usb_debug_flush_output(void); // immediately transmit any buffered output | |||
#define USB_DEBUG_HID | |||
#define KEY_CTRL 0x01 | |||
#define KEY_SHIFT 0x02 | |||
#define KEY_ALT 0x04 | |||
#define KEY_GUI 0x08 | |||
#define KEY_LEFT_CTRL 0x01 | |||
#define KEY_LEFT_SHIFT 0x02 | |||
#define KEY_LEFT_ALT 0x04 | |||
#define KEY_LEFT_GUI 0x08 | |||
#define KEY_RIGHT_CTRL 0x10 | |||
#define KEY_RIGHT_SHIFT 0x20 | |||
#define KEY_RIGHT_ALT 0x40 | |||
#define KEY_RIGHT_GUI 0x80 | |||
#define KEY_A 4 | |||
#define KEY_B 5 | |||
#define KEY_C 6 | |||
#define KEY_D 7 | |||
#define KEY_E 8 | |||
#define KEY_F 9 | |||
#define KEY_G 10 | |||
#define KEY_H 11 | |||
#define KEY_I 12 | |||
#define KEY_J 13 | |||
#define KEY_K 14 | |||
#define KEY_L 15 | |||
#define KEY_M 16 | |||
#define KEY_N 17 | |||
#define KEY_O 18 | |||
#define KEY_P 19 | |||
#define KEY_Q 20 | |||
#define KEY_R 21 | |||
#define KEY_S 22 | |||
#define KEY_T 23 | |||
#define KEY_U 24 | |||
#define KEY_V 25 | |||
#define KEY_W 26 | |||
#define KEY_X 27 | |||
#define KEY_Y 28 | |||
#define KEY_Z 29 | |||
#define KEY_1 30 | |||
#define KEY_2 31 | |||
#define KEY_3 32 | |||
#define KEY_4 33 | |||
#define KEY_5 34 | |||
#define KEY_6 35 | |||
#define KEY_7 36 | |||
#define KEY_8 37 | |||
#define KEY_9 38 | |||
#define KEY_0 39 | |||
#define KEY_ENTER 40 | |||
#define KEY_ESC 41 | |||
#define KEY_BACKSPACE 42 | |||
#define KEY_TAB 43 | |||
#define KEY_SPACE 44 | |||
#define KEY_MINUS 45 | |||
#define KEY_EQUAL 46 | |||
#define KEY_LEFT_BRACE 47 | |||
#define KEY_RIGHT_BRACE 48 | |||
#define KEY_BACKSLASH 49 | |||
#define KEY_NUMBER 50 | |||
#define KEY_SEMICOLON 51 | |||
#define KEY_QUOTE 52 | |||
#define KEY_TILDE 53 | |||
#define KEY_COMMA 54 | |||
#define KEY_PERIOD 55 | |||
#define KEY_SLASH 56 | |||
#define KEY_CAPS_LOCK 57 | |||
#define KEY_F1 58 | |||
#define KEY_F2 59 | |||
#define KEY_F3 60 | |||
#define KEY_F4 61 | |||
#define KEY_F5 62 | |||
#define KEY_F6 63 | |||
#define KEY_F7 64 | |||
#define KEY_F8 65 | |||
#define KEY_F9 66 | |||
#define KEY_F10 67 | |||
#define KEY_F11 68 | |||
#define KEY_F12 69 | |||
#define KEY_PRINTSCREEN 70 | |||
#define KEY_SCROLL_LOCK 71 | |||
#define KEY_PAUSE 72 | |||
#define KEY_INSERT 73 | |||
#define KEY_HOME 74 | |||
#define KEY_PAGE_UP 75 | |||
#define KEY_DELETE 76 | |||
#define KEY_END 77 | |||
#define KEY_PAGE_DOWN 78 | |||
#define KEY_RIGHT 79 | |||
#define KEY_LEFT 80 | |||
#define KEY_DOWN 81 | |||
#define KEY_UP 82 | |||
#define KEY_NUM_LOCK 83 | |||
#define KEYPAD_SLASH 84 | |||
#define KEYPAD_ASTERIX 85 | |||
#define KEYPAD_MINUS 86 | |||
#define KEYPAD_PLUS 87 | |||
#define KEYPAD_ENTER 88 | |||
#define KEYPAD_1 89 | |||
#define KEYPAD_2 90 | |||
#define KEYPAD_3 91 | |||
#define KEYPAD_4 92 | |||
#define KEYPAD_5 93 | |||
#define KEYPAD_6 94 | |||
#define KEYPAD_7 95 | |||
#define KEYPAD_8 96 | |||
#define KEYPAD_9 97 | |||
#define KEYPAD_0 98 | |||
#define KEYPAD_PERIOD 99 | |||
// Everything below this point is only intended for usb_serial.c | |||
#ifdef USB_SERIAL_PRIVATE_INCLUDE | |||
#include <avr/io.h> | |||
#include <avr/pgmspace.h> | |||
#include <avr/interrupt.h> | |||
#define EP_TYPE_CONTROL 0x00 | |||
#define EP_TYPE_BULK_IN 0x81 | |||
#define EP_TYPE_BULK_OUT 0x80 | |||
#define EP_TYPE_INTERRUPT_IN 0xC1 | |||
#define EP_TYPE_INTERRUPT_OUT 0xC0 | |||
#define EP_TYPE_ISOCHRONOUS_IN 0x41 | |||
#define EP_TYPE_ISOCHRONOUS_OUT 0x40 | |||
#define EP_SINGLE_BUFFER 0x02 | |||
#define EP_DOUBLE_BUFFER 0x06 | |||
#define EP_SIZE(s) ((s) == 64 ? 0x30 : \ | |||
((s) == 32 ? 0x20 : \ | |||
((s) == 16 ? 0x10 : \ | |||
0x00))) | |||
#define MAX_ENDPOINT 4 | |||
#define LSB(n) (n & 255) | |||
#define MSB(n) ((n >> 8) & 255) | |||
#if defined(__AVR_AT90USB162__) | |||
#define HW_CONFIG() | |||
#define PLL_CONFIG() (PLLCSR = ((1<<PLLE)|(1<<PLLP0))) | |||
#define USB_CONFIG() (USBCON = (1<<USBE)) | |||
#define USB_FREEZE() (USBCON = ((1<<USBE)|(1<<FRZCLK))) | |||
#elif defined(__AVR_ATmega32U4__) | |||
#define HW_CONFIG() (UHWCON = 0x01) | |||
#define PLL_CONFIG() (PLLCSR = 0x12) | |||
#define USB_CONFIG() (USBCON = ((1<<USBE)|(1<<OTGPADE))) | |||
#define USB_FREEZE() (USBCON = ((1<<USBE)|(1<<FRZCLK))) | |||
#elif defined(__AVR_AT90USB646__) | |||
#define HW_CONFIG() (UHWCON = 0x81) | |||
#define PLL_CONFIG() (PLLCSR = 0x1A) | |||
#define USB_CONFIG() (USBCON = ((1<<USBE)|(1<<OTGPADE))) | |||
#define USB_FREEZE() (USBCON = ((1<<USBE)|(1<<FRZCLK))) | |||
#elif defined(__AVR_AT90USB1286__) | |||
#define HW_CONFIG() (UHWCON = 0x81) | |||
#define PLL_CONFIG() (PLLCSR = 0x16) | |||
#define USB_CONFIG() (USBCON = ((1<<USBE)|(1<<OTGPADE))) | |||
#define USB_FREEZE() (USBCON = ((1<<USBE)|(1<<FRZCLK))) | |||
#endif | |||
// standard control endpoint request types | |||
#define GET_STATUS 0 | |||
#define CLEAR_FEATURE 1 | |||
#define SET_FEATURE 3 | |||
#define SET_ADDRESS 5 | |||
#define GET_DESCRIPTOR 6 | |||
#define GET_CONFIGURATION 8 | |||
#define SET_CONFIGURATION 9 | |||
#define GET_INTERFACE 10 | |||
#define SET_INTERFACE 11 | |||
// HID (human interface device) | |||
#define HID_GET_REPORT 1 | |||
#define HID_GET_IDLE 2 | |||
#define HID_GET_PROTOCOL 3 | |||
#define HID_SET_REPORT 9 | |||
#define HID_SET_IDLE 10 | |||
#define HID_SET_PROTOCOL 11 | |||
// CDC (communication class device) | |||
#define CDC_SET_LINE_CODING 0x20 | |||
#define CDC_GET_LINE_CODING 0x21 | |||
#define CDC_SET_CONTROL_LINE_STATE 0x22 | |||
#endif | |||
#endif |