Add USB HID(host) protocol.(not finished)

protocol/usb_hid/Makefile

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+#----------------------------------------------------------------------------
+# 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.
+#                Please customize your programmer settings(PROGRAM_CMD)
+#
+# make teensy = Download the hex file to the device, using teensy_loader_cli.
+#               (must have teensy_loader_cli installed).
+#
+# make dfu = Download the hex file to the device, using dfu-programmer (must
+#            have dfu-programmer installed).
+#
+# make flip = Download the hex file to the device, using Atmel FLIP (must
+#             have Atmel FLIP installed).
+#
+# make dfu-ee = Download the eeprom file to the device, using dfu-programmer
+#               (must have dfu-programmer installed).
+#
+# make flip-ee = Download the eeprom file to the device, using Atmel FLIP
+#                (must have Atmel FLIP installed).
+#
+# 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 = usbkbd
+
+# Directory keyboard dependent files exist
+TARGET_DIR = .
+
+# MCU name
+MCU = atmega32u4
+
+
+# Processor frequency.
+#     This will define a symbol, F_CPU, in all source code files equal to the
+#     processor frequency in Hz. You can then use this symbol in your source code to
+#     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
+#     automatically to create a 32-bit value in your source code.
+#
+#     This will be an integer division of F_USB below, as it is sourced by
+#     F_USB after it has run through any CPU prescalers. Note that this value
+#     does not *change* the processor frequency - it should merely be updated to
+#     reflect the processor speed set externally so that the code can use accurate
+#     software delays.
+F_CPU = 16000000
+
+
+
+
+ARDUINO_DIR = arduino-1.0.1/cores
+ARDUINO_SRC = \
+	arduino/Print.cpp \
+	arduino/Stream.cpp \
+	arduino/wiring.c
+
+#	arduino/main.cpp \
+#	arduino/USBCore.cpp \
+#	arduino/CDC.cpp \
+#	arduino/HID.cpp \
+#	arduino/HardwareSerial.cpp \
+#	arduino/IPAddress.cpp \
+#	arduino/Tone.cpp \
+#	arduino/WMath.cpp \
+#	arduino/WInterrupts.c \
+#	arduino/wiring_analog.c \
+#	arduino/wiring_pulse.c \
+#	arduino/wiring_shift.c
+#	arduino/wiring_digital.c \
+#	arduino/WString.cpp \
+#	arduino/new.cpp \
+
+USB_HOST_DIR = ./USB_Host_Shield_2.0
+USB_HOST_SRC = \
+	Usb.cpp \
+	cdcacm.cpp \
+	cdcftdi.cpp \
+	cdcprolific.cpp \
+	hid.cpp \
+	hidboot.cpp \
+	hiduniversal.cpp \
+	hidusagetitlearrays.cpp \
+	hidescriptorparser.cpp \
+	message.cpp \
+	parsetools.cpp
+
+	#PS3BT.cpp \
+	#PS3USB.cpp \
+	#RFCOMM.cpp \
+	#XBOXUSB.cpp \
+	#adk.cpp \
+	#masstorage.cpp \
+	#max_LCD.cpp \
+	#usbhub.cpp
+
+#SRC =  host_kbd.cpp
+SRC =  main.cpp
+SRC +=  parser.cpp
+SRC +=  NullSerial.cpp
+SRC += $(USB_HOST_SRC)
+SRC += $(ARDUINO_SRC)
+
+OPT_DEFS = -DARDUINO=101 -DUSB_VID=0x2341 -DUSB_PID=0x8036
+
+# Search Path
+VPATH += $(TARGET_DIR)
+VPATH += $(USB_HOST_DIR)
+VPATH += $(ARDUINO_DIR)
+# for Arduino.h
+VPATH += arduino-1.0.1/cores/arduino
+# for pins_arduino.h
+VPATH += arduino-1.0.1/variants/leonardo
+
+
+# Ad hoc workaround to override original arduino/USBAPI.h with our own USBAPI.h.
+# Obsolete but needed in order to remove directory including the current input file from search list.
+# Option -iquote can't replace -I- for this purpose.
+EXTRAFLAGS += -I-
+
+
+# program Leonardo
+PROGRAM_CMD = avrdude -patmega32u4 -cavr109 -P$(DEV) -b57600 -Uflash:w:$(TARGET).hex
+
+
+include ../../rules.mk

protocol/usb_hid/NullSerial.cpp

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+#include "USBAPI.h"
+
+
+void NullSerial::begin(uint16_t baud_count)
+{
+}
+
+void NullSerial::end(void)
+{
+}
+
+void NullSerial::accept(void)
+{
+}
+
+int NullSerial::available(void)
+{
+    return 0;
+}
+
+int NullSerial::peek(void)
+{
+    return -1;
+}
+
+int NullSerial::read(void)
+{
+    return -1;
+}
+
+void NullSerial::flush(void)
+{
+}
+
+size_t NullSerial::write(uint8_t c)
+{
+    return 1;
+}
+
+NullSerial::operator bool() {
+    return true;
+}
+
+NullSerial Serial;

protocol/usb_hid/USBAPI.h

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+/*
+ * Override original arduino USBAPI.h.
+ */
+#include <stdint.h>
+#include "Stream.h"
+
+
+class NullSerial : public Stream
+{
+public:
+	void begin(uint16_t baud_count);
+	void end(void);
+
+	virtual int available(void);
+	virtual void accept(void);
+	virtual int peek(void);
+	virtual int read(void);
+	virtual void flush(void);
+	virtual size_t write(uint8_t);
+	operator bool();
+};
+extern NullSerial Serial;

protocol/usb_hid/main.cpp

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+#include <util/delay.h>
+#include <Arduino.h>
+#include "Usb.h"
+#include "hid.h"
+#include "hidboot.h"
+#include "parser.h"
+
+
+USB     Usb;
+HIDBoot<HID_PROTOCOL_KEYBOARD>    kbd(&Usb);
+KBDReportParser Prs;
+
+void usb_disable()
+{
+    USBCON &= ~(1<<VBUSTI);
+    UDIEN = 0;
+    USBINT = 0;
+    UDINT = 0;
+    UDCON |= (1<<DETACH);
+    USBCON &= ~(1<<USBE);
+    PLLCSR = 0;
+    UHWCON &= ~(1<<UVREGE);
+    USBCON &= ~(1<<OTGPADE);
+}
+
+void setup()
+{
+    usb_disable();
+
+    // RX LED for debug
+    DDRB |= (1<<0);
+
+    Serial.begin( 115200 );
+    while (!Serial) ;
+
+    delay( 1000 );
+
+    Serial.println("Start");
+
+    if (Usb.Init() == -1) {
+        Serial.println("OSC did not start.");
+    }
+      
+    delay( 200 );
+  
+    kbd.SetReportParser(0, (HIDReportParser*)&Prs);
+}
+
+void loop()
+{
+    Usb.Task();
+}
+
+int main(void)
+{
+    // arduino/wiring.c(Timer initialize)
+    init();
+
+    setup();
+    
+    for (;;) {
+        loop();
+    }
+        
+    return 0;
+}

protocol/usb_hid/parser.cpp

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+#include "parser.h"
+
+void KBDReportParser::Parse(HID *hid, bool is_rpt_id, uint8_t len, uint8_t *buf)
+{
+    PORTB ^= (1<<0);
+/*
+    Serial.print("KBDReport: ");
+    for (uint8_t i = 0; i < len; i++) {
+        PrintHex<uint8_t>(buf[i]);
+        Serial.print(" ");
+    }
+    Serial.print("\r\n");
+*/
+    //PORTC &= ~(1<<7);
+}

protocol/usb_hid/parser.h

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+#include "hid.h"
+
+class KBDReportParser : public HIDReportParser
+{
+public:
+	virtual void Parse(HID *hid, bool is_rpt_id, uint8_t len, uint8_t *buf);
+};