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

protocol/usb_hid/main.cpp

@@ -0,0 +1,66 @@
+#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;
+}