Keyboard.h 4.21 KB
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/*
             LUFA Library
     Copyright (C) Dean Camera, 2009.
              
  dean [at] fourwalledcubicle [dot] com
      www.fourwalledcubicle.com
*/

/*
  Copyright 2009  Denver Gingerich (denver [at] ossguy [dot] com)
      Based on code by Dean Camera (dean [at] fourwalledcubicle [dot] com)
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  Permission to use, copy, modify, and distribute this software
  and its documentation for any purpose and without fee is hereby
  granted, provided that the above copyright notice appear in all
  copies and that both that the copyright notice and this
  permission notice and warranty disclaimer appear in supporting
  documentation, and that the name of the author not be used in
  advertising or publicity pertaining to distribution of the
  software without specific, written prior permission.

  The author disclaim all warranties with regard to this
  software, including all implied warranties of merchantability
  and fitness.  In no event shall the author be liable for any
  special, indirect or consequential damages or any damages
  whatsoever resulting from loss of use, data or profits, whether
  in an action of contract, negligence or other tortious action,
  arising out of or in connection with the use or performance of
  this software.
*/

/** \file
 *
 *  Header file for Keyboard.c.
 */
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#ifndef _KEYBOARD_H_
#define _KEYBOARD_H_

	/* Includes: */
		#include <avr/io.h>
		#include <avr/wdt.h>
		#include <avr/interrupt.h>
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		#include <avr/power.h>
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		#include <stdbool.h>
		#include <string.h>

		#include "Descriptors.h"

		#include <LUFA/Version.h>                    // Library Version Information
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		#include <LUFA/Scheduler/Scheduler.h>        // Simple scheduler for task management
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		#include <LUFA/Drivers/USB/USB.h>            // USB Functionality
		#include <LUFA/Drivers/Board/Joystick.h>     // Joystick driver
		#include <LUFA/Drivers/Board/LEDs.h>         // LEDs driver

	/* Macros: */
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		/** Idle period indicating that reports should be sent only when the inputs have changed */
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		#define HID_IDLE_CHANGESONLY   0
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		/** HID Class specific request to get the next HID report from the device. */
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		#define REQ_GetReport          0x01
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		/** HID Class specific request to get the idle timeout period of the device. */
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		#define REQ_GetIdle            0x02
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		/** HID Class specific request to send the next HID report to the device. */
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		#define REQ_SetReport          0x09
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		/** HID Class specific request to set the idle timeout period of the device. */
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		#define REQ_SetIdle            0x0A
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		/** HID Class specific request to get the current HID protocol in use, either report or boot. */
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		#define REQ_GetProtocol        0x03
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		/** HID Class specific request to set the current HID protocol in use, either report or boot. */
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		#define REQ_SetProtocol        0x0B
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	/* Task Definitions: */
		TASK(USB_Keyboard_Report);

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	/* Type Defines: */
		/** Type define for the keyboard HID report structure, for creating and sending HID reports to the host PC.
		 *  This mirrors the layout described to the host in the HID report descriptor, in Descriptors.c.
		 */
		typedef struct
		{
			uint8_t Modifier; /**< Modifier mask byte, containing a mask of modifier keys set (such as shift or CTRL) */
			uint8_t Reserved; /**< Reserved, always set as 0x00 */
			uint8_t KeyCode[6]; /**< Array of up to six simultaneous key codes of pressed keys */
		} USB_KeyboardReport_Data_t;
			
	/* Enums: */
		/** Enum for the possible status codes for passing to the UpdateStatus() function. */
		enum Keyboard_StatusCodes_t
		{
			Status_USBNotReady    = 0, /**< USB is not ready (disconnected from a USB host) */
			Status_USBEnumerating = 1, /**< USB interface is enumerating */
			Status_USBReady       = 2, /**< USB interface is connected and ready */
		};
		
	/* Function Prototypes: */
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		void EVENT_USB_Connect(void);
		void EVENT_USB_Disconnect(void);
		void EVENT_USB_ConfigurationChanged(void);
		void EVENT_USB_UnhandledControlPacket(void);

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		void CreateKeyboardReport(USB_KeyboardReport_Data_t* ReportData);
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		void ProcessLEDReport(uint8_t LEDReport);
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		void SendNextReport(void);
		void ReceiveNextReport(void);
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		void UpdateStatus(uint8_t CurrentStatus);
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#endif