Formalizing code module structure and inheritance (Large Commit)

- Commenting cleaned up
- usb_keyboard_debug is not finished yet in terms of cleanup (needs DEBUB_PRINT #ifdef's)
- Added LoadFile script generation
- Formalized KeyIndex and USBKeys data containers
- Split parts of scan_loop into Macro, USB, and main.c
- Added interface to USB modules
- Added interface to Macro modules
- Added proper Debug module enable/disable

USB/pjrc/usb_com.c

@@ -0,0 +1,85 @@
+/* Copyright (C) 2011 by Jacob Alexander
+ * 
+ * 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.
+ */
+
+// ----- Includes -----
+
+// Compiler Includes
+#include <util/delay.h>
+
+// AVR Includes
+
+// Project Includes
+#include "usb_keyboard_debug.h"
+
+// Local Includes
+#include "usb_com.h"
+
+
+
+// ----- Variables -----
+
+// 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 USBKeys_Modifiers = 0;
+
+// which keys are currently pressed, up to 6 keys may be down at once
+         uint8_t USBKeys_Array[USB_MAX_KEY_SEND] = {0,0,0,0,0,0};
+
+// The number of keys sent to the usb in the array
+         uint8_t USBKeys_Sent;
+
+// 1=num lock, 2=caps lock, 4=scroll lock, 8=compose, 16=kana
+volatile uint8_t USBKeys_LEDs = 0;
+
+
+
+// ----- Functions -----
+
+// USB Module Setup
+void usb_setup(void)
+{
+	// 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);
+}
+
+
+// USB Data Send
+void usb_send(void)
+{
+		// TODO undo potentially old keys
+		for ( uint8_t c = USBKeys_Sent; c < USBKeys_MaxSize; c++ )
+			USBKeys_Array[c] = 0;
+
+		// Send keypresses
+		usb_keyboard_send();
+
+		// Clear modifiers
+		USBKeys_Modifiers = 0;
+}
+