/*
 * Copyright (c) 1998-2004 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
#include <IOKit/adb/IOADBDevice.h>
#include <IOKit/hidsystem/IOHIKeyboard.h>
#include <IOKit/hidsystem/IOLLEvent.h>
#include <IOKit/hidsystem/IOHIDSystem.h>
#include <IOKit/hidsystem/IOHIDParameter.h>

enum {
    kgestaltPwrBkEKDomKbd = 0xc3,
    kgestaltPwrBkEKISOKbd = 0xc4,
    kgestaltPwrBkEKJISKbd = 0xc5,
    kgestaltPwrBk99JISKbd = 0xc9
};

class AppleADBKeyboard :  public IOHIKeyboard
{
OSDeclareDefaultStructors(AppleADBKeyboard)

private:
    
void setAlphaLockFeedback ( bool to );
void setNumLockFeedback ( bool to );
UInt32 maxKeyCodes ( void );
const unsigned char * defaultKeymapOfLength (UInt32 * length );
UInt32 interfaceID ( void );
UInt32 deviceType ( void );
bool doesKeyLock ( unsigned key);
unsigned getLEDStatus (void );
void setTimeLastNonmodKeydown(AbsoluteTime now, unsigned int keycode);
void keyboardEvent(unsigned eventType,
      /* flags */            unsigned flags,
      /* keyCode */          unsigned keyCode,
      /* charCode */         unsigned charCode,
      /* charSet */          unsigned charSet,
      /* originalCharCode */ unsigned origCharCode,
      /* originalCharSet */  unsigned origCharSet);
      
 
void updateFKeyMap();       // Update the F key mapping in PMU from device tree
                            //use adb write to PMU register
void setButtonTransTableEntry(unsigned char fkeynum, unsigned char transvalue);
void setFKeyMode(UInt8 mode);
SInt8 getFKeyMode( void);
virtual IOReturn  setParamProperties(OSDictionary * dict);


bool programmerKey;
AbsoluteTime  programmerKeyTime;
AbsoluteTime  rebootTime;
AbsoluteTime  debuggerTime;
AbsoluteTime  _lastkeydown;
AbsoluteTime  _lastkeyCGEvent;
bool _fwd_delete_down;
bool _enable_fwd_delete;
bool _fn_key_invoked_power;
bool _hasDualModeFunctionKeys;

// callPlatformFunction symbols
const OSSymbol 	*_get_last_keydown, *_get_handler_id, *_get_device_flags;

char 	_virtualmap[130]; //Convert raw ADB codes into virtual key codes
char	_fnvirtualmap[130];  //Fake fn key being held down
IOLock *  _keybrdLock;  
IOLock	*_packetLock;	//This lock serializes packets coming to us from the PMU
bool _oneshotCAPSLOCK;


public:

IOADBDevice *	adbDevice;
UInt16       	turnLEDon;		// used by setAlphaLockFeedback mechanism
UInt16		LEDStatus;		//For ADB device TALK commands
bool		_sticky_fn_ON, _stickymodeON;	  //Get from HIDSystem 

bool start ( IOService * theNub );
void stop( IOService * provider );
void free( void );
AbsoluteTime getTimeLastNonmodKeydown (void);
IOReturn packet (UInt8 * data, IOByteCount length, UInt8 adbCommand );
void dispatchKeyboardEvent(unsigned int keyCode,
			 /* direction */ bool         goingDown,
			 /* timeStamp */ AbsoluteTime   time);
virtual IOReturn callPlatformFunction(const OSSymbol *functionName,
					bool waitForFunction,
                                        void *param1, void *param2,
                                        void *param3, void *param4);
virtual void keyboardSpecialEvent(unsigned eventType,
		    /* flags */     unsigned flags,
		    /* keyCode */   unsigned keyCode,
		    /* specialty */ unsigned flavor);

};

/* 
 * Special key values
 */

#define ADBK_DELETE	0x33
#define ADBK_FORWARD_DELETE	0x75
#define ADBK_PBFNKEY	0x3F
#define ADBK_LEFT	0x3B
#define ADBK_RIGHT	0x3C
#define ADBK_UP		0x3E
#define ADBK_DOWN	0x3D
#define ADBK_PGUP	0x74
#define ADBK_PGDN	0x79
#define ADBK_HOME	0x73
#define ADBK_END	0x77
#define ADBK_CONTROL	0x36
#define ADBK_CONTROL_R  0x7D
#define ADBK_FLOWER	0x37
#define ADBK_SHIFT	0x38
#define ADBK_SHIFT_R    0x7B
#define ADBK_CAPSLOCK	0x39
#define ADBK_OPTION	0x3A
#define ADBK_OPTION_R   0x7C
#define	ADBK_NUMLOCK	0x47
#define ADBK_SPACE	0x31
#define ADBK_F		0x03
#define ADBK_O		0x1F
#define ADBK_P		0x23
#define ADBK_Q		0x0C
#define ADBK_V		0x09
#define ADBK_1		0x12
#define ADBK_2		0x13
#define ADBK_3		0x14
#define ADBK_4		0x15
#define ADBK_5		0x17
#define ADBK_6		0x16
#define ADBK_7		0x1A
#define ADBK_8		0x1C
#define ADBK_9		0x19
#define ADBK_0		0x1D
#define ADBK_F9		0x65
#define ADBK_F10	0x6D
#define ADBK_F11	0x67
#define ADBK_F12	0x6F
#define	ADBK_POWER	0x7f	/* actual 0x7f 0x7f */

#define ADBK_KEYVAL(key)	((key) & 0x7f)
#define ADBK_PRESS(key)		(((key) & 0x80) == 0)
#define ADBK_KEYDOWN(key)	(key)
#define ADBK_KEYUP(key)		((key) | 0x80)
#define ADBK_MODIFIER(key)	((((key) & 0x7f) == ADBK_SHIFT) || \
				 (((key) & 0x7f) == ADBK_SHIFT_R) || \
				 (((key) & 0x7f) == ADBK_CONTROL) || \
				 (((key) & 0x7f) == ADBK_CONTROL_R) || \
				 (((key) & 0x7f) == ADBK_FLOWER) || \
				 (((key) & 0x7f) == ADBK_OPTION) || \
				 (((key) & 0x7f) == ADBK_OPTION_R) || \
				 (((key) & 0x7f) == ADBK_NUMLOCK) || \
				 (((key) & 0x7f) == ADBK_CAPSLOCK))

/* ADB Keyboard Status - ADB Register 2 */

#define	ADBKS_LED_NUMLOCK		0x0001
#define	ADBKS_LED_CAPSLOCK		0x0002
#define	ADBKS_LED_SCROLLLOCK		0x0004
#define	ADBKS_SCROLL_LOCK		0x0040
#define	ADBKS_NUMLOCK			0x0080
/* Bits 3 to 5 are reserved */
#define	ADBKS_APPLE_CMD			0x0100
#define	ADBKS_OPTION			0x0200
#define	ADBKS_SHIFT			0x0400
#define	ADBKS_CONTROL			0x0800
#define	ADBKS_CAPSLOCK			0x1000
#define	ADBKS_RESET			0x2000
#define	ADBKS_DELETE			0x4000
/* bit 16 is reserved */