Add USB to USB converter. unmature.

converter/usb_usb/main.cpp

@@ -0,0 +1,95 @@
+#include <avr/io.h>
+#include <avr/wdt.h>
+#include <avr/power.h>
+#include <util/delay.h>
+#include <Arduino.h>
+
+// USB HID host
+#include "Usb.h"
+#include "hid.h"
+#include "hidboot.h"
+#include "parser.h"
+
+// LUFA
+#include "lufa.h"
+
+#include "debug.h"
+#include "keyboard.h"
+
+#include "leonardo_led.h"
+
+
+static USB     usb_host;
+static HIDBoot<HID_PROTOCOL_KEYBOARD>    kbd(&usb_host);
+static KBDReportParser kbd_parser;
+
+static void LUFA_setup(void)
+{
+    /* Disable watchdog if enabled by bootloader/fuses */
+    MCUSR &= ~(1 << WDRF);
+    wdt_disable();
+
+    /* Disable clock division */
+    clock_prescale_set(clock_div_1);
+
+    // Leonardo needs. Without this USB device is not recognized.
+    USB_Disable();
+
+    USB_Init();
+
+    // for Console_Task
+    USB_Device_EnableSOFEvents();
+}
+
+static void HID_setup()
+{
+    if (usb_host.Init() == -1) {
+        debug("HID init: failed\n");
+        LED_TX_OFF;
+    }
+  
+    _delay_ms(200);
+      
+    kbd.SetReportParser(0, (HIDReportParser*)&kbd_parser);
+}
+
+int main(void)
+{
+    // LED for debug
+    LED_TX_INIT;
+    LED_TX_ON;
+
+    print_enable = true;
+    debug_enable = true;
+    debug_matrix = true;
+    debug_keyboard = true;
+    debug_mouse = true;
+
+    host_set_driver(&lufa_driver);
+    keyboard_init();
+
+    LUFA_setup();
+    sei();
+
+    // wait for startup of sendchar routine
+    while (USB_DeviceState != DEVICE_STATE_Configured) ;
+    if (debug_enable) {
+        _delay_ms(1000);
+    }
+
+    HID_setup();
+    
+    debug("init: done\n");
+    for (;;) {
+        keyboard_proc();
+
+        usb_host.Task();
+
+#if !defined(INTERRUPT_CONTROL_ENDPOINT)
+        // LUFA Task for control request
+        USB_USBTask();
+#endif
+    }
+        
+    return 0;
+}