kbd_drv.h

来自「at89c5132,at89c51snd1的usb与keyboard驱动程序。」· C头文件 代码 · 共 50 行

/*H**************************************************************************
* NAME:         kbd_drv.h         
*----------------------------------------------------------------------------
* Copyright (c) 2003 Atmel.
*----------------------------------------------------------------------------
* RELEASE:      c5131-usb-kbd-light-1_0_2      
* REVISION:     1.1     
*----------------------------------------------------------------------------
* PURPOSE: 
* Include file of twi_common.c file
*****************************************************************************/
#ifndef _KBD_DRV_H
#define _KBD_DRV_H

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

/*_____ M A C R O S ________________________________________________________*/
//#ifdef USE_TWI_INTERRUPT

/*F**************************************************************************
* NAME: get_switches
*----------------------------------------------------------------------------
* PARAMS:   none
* return:   Uchar: switches value
*----------------------------------------------------------------------------
* PURPOSE:
* 0=SWITCH ON, 1= SWITCH OFF, MSB =SWITCH 8, LSB = SWITCH 1
*----------------------------------------------------------------------------
* EXAMPLE:
*----------------------------------------------------------------------------
* NOTE: 
*----------------------------------------------------------------------------
* REQUIREMENTS: 
*****************************************************************************/


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

#define ROW_PORT                  KBF
#define ROW_ALL                   ((KBF & 0xF0)>>4)

#define SELECT_COLUMN             0 /*the active level is 0*/
#define FREE_COLUMN               1

/*FUNCTION PROTOTYPES*/

#endif  /* _KBD_DRV_H */