Add USB_Host_Shield_2.0 and arduino-1.0.1 in usb_hid.

.gitmodules

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+[submodule "protocol/usb_hid/USB_Host_Shield_2.0"]
+	path = protocol/usb_hid/USB_Host_Shield_2.0
+	url = git://github.com/felis/USB_Host_Shield_2.0.git

protocol/usb_hid/README

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+Third party Libraries
+---------------------
+USB_Host_Shield_2.0
+    Circuits@Home repository is git-submoduled. Do git submodule init & update to get the content.
+    https://github.com/felis/USB_Host_Shield_2.0
+
+arduino-1.0.1
+    Arduino files copied from:
+    https://github.com/arduino/Arduino/hardware/arduino/{cores,variants}

protocol/usb_hid/arduino-1.0.1/cores/arduino/Arduino.h

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+#ifndef Arduino_h
+#define Arduino_h
+
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+
+#include <avr/pgmspace.h>
+#include <avr/io.h>
+#include <avr/interrupt.h>
+
+#include "binary.h"
+
+#ifdef __cplusplus
+extern "C"{
+#endif
+
+#define HIGH 0x1
+#define LOW  0x0
+
+#define INPUT 0x0
+#define OUTPUT 0x1
+#define INPUT_PULLUP 0x2
+
+#define true 0x1
+#define false 0x0
+
+#define PI 3.1415926535897932384626433832795
+#define HALF_PI 1.5707963267948966192313216916398
+#define TWO_PI 6.283185307179586476925286766559
+#define DEG_TO_RAD 0.017453292519943295769236907684886
+#define RAD_TO_DEG 57.295779513082320876798154814105
+
+#define SERIAL  0x0
+#define DISPLAY 0x1
+
+#define LSBFIRST 0
+#define MSBFIRST 1
+
+#define CHANGE 1
+#define FALLING 2
+#define RISING 3
+
+#if defined(__AVR_ATtiny24__) || defined(__AVR_ATtiny44__) || defined(__AVR_ATtiny84__) || defined(__AVR_ATtiny25__) || defined(__AVR_ATtiny45__) || defined(__AVR_ATtiny85__)
+#define DEFAULT 0
+#define EXTERNAL 1
+#define INTERNAL 2
+#else  
+#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) || defined(__AVR_ATmega1284P__) 
+#define INTERNAL1V1 2
+#define INTERNAL2V56 3
+#else
+#define INTERNAL 3
+#endif
+#define DEFAULT 1
+#define EXTERNAL 0
+#endif
+
+// undefine stdlib's abs if encountered
+#ifdef abs
+#undef abs
+#endif
+
+#define min(a,b) ((a)<(b)?(a):(b))
+#define max(a,b) ((a)>(b)?(a):(b))
+#define abs(x) ((x)>0?(x):-(x))
+#define constrain(amt,low,high) ((amt)<(low)?(low):((amt)>(high)?(high):(amt)))
+#define round(x)     ((x)>=0?(long)((x)+0.5):(long)((x)-0.5))
+#define radians(deg) ((deg)*DEG_TO_RAD)
+#define degrees(rad) ((rad)*RAD_TO_DEG)
+#define sq(x) ((x)*(x))
+
+#define interrupts() sei()
+#define noInterrupts() cli()
+
+#define clockCyclesPerMicrosecond() ( F_CPU / 1000000L )
+#define clockCyclesToMicroseconds(a) ( (a) / clockCyclesPerMicrosecond() )
+#define microsecondsToClockCycles(a) ( (a) * clockCyclesPerMicrosecond() )
+
+#define lowByte(w) ((uint8_t) ((w) & 0xff))
+#define highByte(w) ((uint8_t) ((w) >> 8))
+
+#define bitRead(value, bit) (((value) >> (bit)) & 0x01)
+#define bitSet(value, bit) ((value) |= (1UL << (bit)))
+#define bitClear(value, bit) ((value) &= ~(1UL << (bit)))
+#define bitWrite(value, bit, bitvalue) (bitvalue ? bitSet(value, bit) : bitClear(value, bit))
+
+
+typedef unsigned int word;
+
+#define bit(b) (1UL << (b))
+
+typedef uint8_t boolean;
+typedef uint8_t byte;
+
+void init(void);
+
+void pinMode(uint8_t, uint8_t);
+void digitalWrite(uint8_t, uint8_t);
+int digitalRead(uint8_t);
+int analogRead(uint8_t);
+void analogReference(uint8_t mode);
+void analogWrite(uint8_t, int);
+
+unsigned long millis(void);
+unsigned long micros(void);
+void delay(unsigned long);
+void delayMicroseconds(unsigned int us);
+unsigned long pulseIn(uint8_t pin, uint8_t state, unsigned long timeout);
+
+void shiftOut(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder, uint8_t val);
+uint8_t shiftIn(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder);
+
+void attachInterrupt(uint8_t, void (*)(void), int mode);
+void detachInterrupt(uint8_t);
+
+void setup(void);
+void loop(void);
+
+// Get the bit location within the hardware port of the given virtual pin.
+// This comes from the pins_*.c file for the active board configuration.
+
+#define analogInPinToBit(P) (P)
+
+// On the ATmega1280, the addresses of some of the port registers are
+// greater than 255, so we can't store them in uint8_t's.
+extern const uint16_t PROGMEM port_to_mode_PGM[];
+extern const uint16_t PROGMEM port_to_input_PGM[];
+extern const uint16_t PROGMEM port_to_output_PGM[];
+
+extern const uint8_t PROGMEM digital_pin_to_port_PGM[];
+// extern const uint8_t PROGMEM digital_pin_to_bit_PGM[];
+extern const uint8_t PROGMEM digital_pin_to_bit_mask_PGM[];
+extern const uint8_t PROGMEM digital_pin_to_timer_PGM[];
+
+// Get the bit location within the hardware port of the given virtual pin.
+// This comes from the pins_*.c file for the active board configuration.
+// 
+// These perform slightly better as macros compared to inline functions
+//
+#define digitalPinToPort(P) ( pgm_read_byte( digital_pin_to_port_PGM + (P) ) )
+#define digitalPinToBitMask(P) ( pgm_read_byte( digital_pin_to_bit_mask_PGM + (P) ) )
+#define digitalPinToTimer(P) ( pgm_read_byte( digital_pin_to_timer_PGM + (P) ) )
+#define analogInPinToBit(P) (P)
+#define portOutputRegister(P) ( (volatile uint8_t *)( pgm_read_word( port_to_output_PGM + (P))) )
+#define portInputRegister(P) ( (volatile uint8_t *)( pgm_read_word( port_to_input_PGM + (P))) )
+#define portModeRegister(P) ( (volatile uint8_t *)( pgm_read_word( port_to_mode_PGM + (P))) )
+
+#define NOT_A_PIN 0
+#define NOT_A_PORT 0
+
+#ifdef ARDUINO_MAIN
+#define PA 1
+#define PB 2
+#define PC 3
+#define PD 4
+#define PE 5
+#define PF 6
+#define PG 7
+#define PH 8
+#define PJ 10
+#define PK 11
+#define PL 12
+#endif
+
+#define NOT_ON_TIMER 0
+#define TIMER0A 1
+#define TIMER0B 2
+#define TIMER1A 3
+#define TIMER1B 4
+#define TIMER2  5
+#define TIMER2A 6
+#define TIMER2B 7
+
+#define TIMER3A 8
+#define TIMER3B 9
+#define TIMER3C 10
+#define TIMER4A 11
+#define TIMER4B 12
+#define TIMER4C 13
+#define TIMER4D 14	
+#define TIMER5A 15
+#define TIMER5B 16
+#define TIMER5C 17
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#ifdef __cplusplus
+#include "WCharacter.h"
+#include "WString.h"
+#include "HardwareSerial.h"
+
+uint16_t makeWord(uint16_t w);
+uint16_t makeWord(byte h, byte l);
+
+#define word(...) makeWord(__VA_ARGS__)
+
+unsigned long pulseIn(uint8_t pin, uint8_t state, unsigned long timeout = 1000000L);
+
+void tone(uint8_t _pin, unsigned int frequency, unsigned long duration = 0);
+void noTone(uint8_t _pin);
+
+// WMath prototypes
+long random(long);
+long random(long, long);
+void randomSeed(unsigned int);
+long map(long, long, long, long, long);
+
+#endif
+
+#include "pins_arduino.h"
+
+#endif