key.h

车载 液晶显示器的主控程序（主要使用芯片为 MYSON MTV512 单片机、RealTek 2323 Scare 芯片、TVP5147（视频解码）。配Sharp 8寸液晶显示器 ）。

//----------------------------------------------------------------------------------------------------
// ID Code      : Key.h No.0000
// Update Note  : 
//
//----------------------------------------------------------------------------------------------------

//--------------------------------------------------
// Definitions of Key Repeat Start Time (Unit in sec)
//--------------------------------------------------
#define _KEY_REPEAT_START_TIME      0.35//0.5


//--------------------------------------------------
// Definitions of Key Mask
//--------------------------------------------------
#if (_PCB_TYPE == _PCB_PTX23A21)
#define _POWER_KEY_MASK				0x01
#define _MENU_KEY_MASK				0x02
#define _RIGHT_KEY_MASK             0x04
#define _LEFT_KEY_MASK              0x08
#define _EXIT_KEY_MASK              0x10
#define _UP_KEY_MASK				0x20
#define _DOWN_KEY_MASK				0X40
#define _IR_KEY_MASK				0x80

#define _POWER_RIGHT_KEY_MASK       (_POWER_KEY_MASK | _RIGHT_KEY_MASK)
#define _POWER_MENU_KEY_MASK        (_POWER_KEY_MASK | _MENU_KEY_MASK)
#define _POWER_LEFT_RIGHT_KEY_MASK  (_POWER_KEY_MASK | _LEFT_KEY_MASK | _RIGHT_KEY_MASK)
//--------------------------------------------------
// Definitions of Key Message
//--------------------------------------------------
#define _MENU_KEY_MESSAGE           	0
#if (_CUSTOM_TYPE == _CUSTOM_HAOZHEN)
#define _RIGHT_KEY_MESSAGE          	1
#define _LEFT_KEY_MESSAGE           	2
#else
#define _RIGHT_KEY_MESSAGE          	2
#define _LEFT_KEY_MESSAGE           	1
#endif
#define _EXIT_KEY_MESSAGE           	3
#define _5_KEY_MESSAGE              	4
#define _6_KEY_MESSAGE              	5
#define _7_KEY_MESSAGE              	6
#define _NONE_KEY_MESSAGE           	7

#define _KEY_AMOUNT                 	4

#elif ( _PCB_TYPE == _PCB_PV013BA1 || \
		_PCB_TYPE == _PCB_RIGHTECH_A || \
		_PCB_TYPE == _PCB_PV023BC1 ||\
		_PCB_TYPE==_PCB_JIALUHUA)
#define _POWER_KEY_MASK				0x01	// Power
#define _MENU_KEY_MASK				0x02	// Menu
#define _RIGHT_KEY_MASK             0x04	// Right
#define _LEFT_KEY_MASK              0x08	// Left
#define _UP_KEY_MASK				0x20//////////////////////
#define _DOWN_KEY_MASK				0x28  ///////////////////
	#if (_SOURCE_KEY_TYPE == _SOURCE_KEY_ONEKEY)
#define _SOURCE_KEY_MASK            0x10	// source
#define _EXIT_KEY_MASK				0X40	// unuse
	#endif
	#if (_SOURCE_KEY_TYPE == _SOURCE_KEY_MULTIKEY)
#define _VIDEO1_KEY_MASK            0x10	// source
#define _VIDEO2_KEY_MASK			0X20	// unuse
	#endif
	#if (_SOURCE_KEY_TYPE == _SOURCE_KEY_MIXKEY)
#define _SOURCE_KEY_MASK            0x10	// source switch by IR
#define _VIDEO1_KEY_MASK            0x20	// source switch by keypad V1
#define _VIDEO2_KEY_MASK			0X40	// source switch by keypad V2
#define _EXIT_KEY_MASK				0X100	// unuse
	#endif
#define _IR_KEY_MASK				0x80	// IR

#define _POWER_RIGHT_KEY_MASK       (_POWER_KEY_MASK | _RIGHT_KEY_MASK)
#define _POWER_MENU_KEY_MASK        (_POWER_KEY_MASK | _MENU_KEY_MASK)
#define _POWER_LEFT_RIGHT_KEY_MASK  (_POWER_KEY_MASK | _LEFT_KEY_MASK | _RIGHT_KEY_MASK)
//--------------------------------------------------
// Definitions of Key Message
//--------------------------------------------------
#define _MENU_KEY_MESSAGE           	0
#define _LEFT_KEY_MESSAGE           	1
#define _RIGHT_KEY_MESSAGE          	2
#define _EXIT_KEY_MESSAGE           	5   //             3///
	#if (_SOURCE_KEY_TYPE == _SOURCE_KEY_ONEKEY)
#define _SOURCE_KEY_MESSAGE             4
#define _7_KEY_MESSAGE              	5
#define _NONE_KEY_MESSAGE           	6
#define _KEY_AMOUNT                 	4
	#endif	//end of #if (_SOURCE_KEY_TYPE == _SOURCE_KEY_ONEKEY)

	#if (_SOURCE_KEY_TYPE == _SOURCE_KEY_MULTIKEY)
#define _VIDEO1_KEY_MESSAGE             4
#define _VIDEO2_KEY_MESSAGE             5
#define _7_KEY_MESSAGE              	6
#define _NONE_KEY_MESSAGE           	7
#define _KEY_AMOUNT                 	4
	#endif	//end of #if (_SOURCE_KEY_TYPE == _SOURCE_KEY_MULTIKEY)

	#if (_SOURCE_KEY_TYPE == _SOURCE_KEY_MIXKEY)
#define _SOURCE_KEY_MESSAGE             4
#define _VIDEO1_KEY_MESSAGE             5
#define _VIDEO2_KEY_MESSAGE             6
#define _NONE_KEY_MESSAGE           	7
#define _KEY_AMOUNT                 	4
	#endif	//end of #if (_SOURCE_KEY_TYPE == _SOURCE_KEY_MIXKEY)

#endif


//-------------------------------------------------
// Definitions of OSD process
//-------------------------------------------------
#define _SELECTED_MESSAGE			0
#define _ITEM_UP_MESSAGE			1
#define _ITEM_DOWN_MESSAGE			2
#define _VALUE_UP_MESSAGE			3
#define _VALUE_DOWN_MESSAGE			4
#define _EXIT_MESSAGE				5
#define _SWITCH_MESSAGE				6
#define _IR_MESSAGE					7
#define _NONE_MESSAGE				8

#define _MESSAGE_AMOUNT				8
//----------------------------------------------------------------------------------------------------

#ifdef __KEY__

//--------------------------------------------------
// Global Variables
//--------------------------------------------------
BYTE idata ucKeyControl;
BYTE idata ucKeyMessage;
BYTE idata ucKeyStatePrev;
BYTE idata ucKeyStateCurr;

WORD idata usKeyMenuDelay = 0;
WORD idata usKeyLRDelay = 0;


//--------------------------------------------------
// Function Prototypes
//--------------------------------------------------
void CKeyHandler(void);
void CKeyCheckPowerKey(void);
void CKeyInitial(void);
bit CKeyScanReady(void);
void CKeyScanReadyTimerEvent(void);
void CKeyRepeatEnableTimerEvent(void);
void CKeyMessageConvert(BYTE ucKeyMask, BYTE ucKeyMsg);
BYTE CKeyScan(void);
void CKeyPowerKeyMix(void);
bit CKeyPowerKeyProc(void);
void CKeyMessageProc(void);
bit CKeySourceKeyProc(void);


#else

//--------------------------------------------------
// Extern Global Variables
//--------------------------------------------------
extern BYTE idata ucKeyControl;
extern BYTE idata ucKeyMessage;

extern WORD idata usKeyMenuDelay;
extern WORD idata usKeyLRDelay;


//--------------------------------------------------
// Extern Function Prototypes
//--------------------------------------------------
extern void CKeyHandler(void);
extern void CKeyCheckPowerKey(void);
extern void CKeyInitial(void);
extern bit CKeySourceKeyProc(void);
extern void CKeyRepeatEnableTimerEvent(void);
//x.hu, for source switch
extern BYTE CSourceGetNext(void);


#endif


//----------------------------------------------------------------------------------------------------

//--------------------------------------------------
// Macro of Key Scan Ready Flag
//--------------------------------------------------
#define GET_KEYSCANREADY()          ((bit)(ucKeyControl & _BIT0))
#define SET_KEYSCANREADY()          (ucKeyControl |= _BIT0)
#define CLR_KEYSCANREADY()          (ucKeyControl &= ~_BIT0)


//--------------------------------------------------
// Macro of Key Scan Start Flag
//--------------------------------------------------
#define GET_KEYSCANSTART()          ((bit)(ucKeyControl & _BIT1))
#define SET_KEYSCANSTART()          (ucKeyControl |= _BIT1)
#define CLR_KEYSCANSTART()          (ucKeyControl &= ~_BIT1)


//--------------------------------------------------
// Macro of Key Repeat Start
//--------------------------------------------------
#define GET_KEYREPEATSTART()        (bit)(ucKeyControl & _BIT2)
#define SET_KEYREPEATSTART()        ucKeyControl |= _BIT2
#define CLR_KEYREPEATSTART()        ucKeyControl &= ~_BIT2


//--------------------------------------------------
// Macro of Key Repeat Function Enable
// If you want to use repeat function, please set this flag. If not, please clear it.
//--------------------------------------------------
#define GET_KEYREPEATENABLE()       (bit)(ucKeyControl & _BIT3)
#define SET_KEYREPEATENABLE()       ucKeyControl |= _BIT3
#define CLR_KEYREPEATENABLE()       ucKeyControl &= ~_BIT3


//----------------------------------------------------------------------------------------------------