kbd_drv.h

基于UCOS-II制作的MP3

/*H**************************************************************************
* NAME:         kbd_drv.h         
*----------------------------------------------------------------------------
* Copyright (c) 2003 Atmel.
*----------------------------------------------------------------------------
* RELEASE:      snd1c-refd-nf-4_0_3      
* REVISION:     1.8     
*----------------------------------------------------------------------------
* PURPOSE:
* This file contains the keyboard driver definition
*****************************************************************************/

#ifndef _KBD_DRV_H_
#define _KBD_DRV_H_

/*_____ I N C L U D E S ____________________________________________________*/


/*_____ M A C R O S ________________________________________________________*/

/*----- Hardware Definition -----*/
//#define P_KBD           P1              /* keyboard port P1 */



/*----- Key Definition -----*/
#define KEY_3  0x08
#define KEY_2  0x04
#define KEY_1  0x02
#define KEY_0  0x01

#define NO_KEY  0x00

/*----- Macro-command -----*/
#define KEY_PLAY   0x10
#define KEY_NEXT   0x11
#define KEY_PREV   0x12
#define KEY_INC    0x13
#define KEY_DEC    0x14
#define KEY_SOUND  0x15
#define KEY_PARENT 0x16


/*_____ D E F I N I T I O N ________________________________________________*/


/*_____ D E C L A R A T I O N ______________________________________________*/

void    kbd_init (void);
Byte    kbd_decode (void);

#define Kbd_enable_int()        (IEN1 |= MSK_EKB)
#define Kbd_disable_int()       (IEN1 &= ~MSK_EKB)
#define Kbd_mask_int()          (KBCON |= 0x0f)
#define Kbd_unmask_int()        (KBCON &= 0xf0)
#define Kbd_low_int()           (KBCON &= 0x0f)
#define Kbd_high_int()          (KBCON |= 0xf0) 
#define Kbd_enable_pd_exit()    (KBSTA |= MSK_KPDE)
#define Kbd_disable_pd_exit()   (KBSTA &= ~MSK_KPDE)
#define Kbd_key_pressed()       ((KBSTA & 0x0f) != 0)
#define Kbd_key_locked()        1//(LOCK_ROW == 0)

void    kbd_task_init (void);

#endif  /* _KBD_DRV_H_ */