key.h

可配三星17寸屏的2523源程序+MTV512

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

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


//--------------------------------------------------
// Definitions of Key Mask
//--------------------------------------------------
#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 _KEY5_MASK                  0x20
#define _KEY6_MASK                  0x40
#define _KEY7_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
#define _RIGHT_KEY_MESSAGE          1
#define _LEFT_KEY_MESSAGE           2
#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


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

#ifdef __KEY__

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


//--------------------------------------------------
// 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);


#else

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


//--------------------------------------------------
// Extern Function Prototypes
//--------------------------------------------------
extern void CKeyHandler(void);
extern void CKeyCheckPowerKey(void);
extern void CKeyInitial(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


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