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/*
module/am9513.h
value added preprocessor definitions for Am9513 timer chip
COMEDI - Linux Control and Measurement Device Interface
Copyright (C) 1998 David A. Schleef <ds@schleef.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef _AM9513_H_
#define _AM9513_H_
#if 0
/*
* Before including this file, the following need to be defined:
*/
#define Am9513_8BITBUS xxx
/* or */
#define Am9513_16BITBUS xxx
#define Am9513_output_control(a) xxx
#define Am9513_input_status() xxx
#define Am9513_output_data(a) xxx
#define Am9513_input_data() xxx
#endif
/*
*
*/
#ifdef Am9513_8BITBUS
#define Am9513_write_register(reg,val) \
do{ \
Am9513_output_control(reg); \
Am9513_output_data(val>>8); \
Am9513_output_data(val&0xff); \
}while(0)
#define Am9513_read_register(reg,val) \
do{ \
Am9513_output_control(reg); \
val=Am9513_input_data()<<8; \
val|=Am9513_input_data(); \
}while(0)
#else /* Am9513_16BITBUS */
#define Am9513_write_register(reg,val) \
do{ \
Am9513_output_control(reg); \
Am9513_output_data(val); \
}while(0)
#define Am9513_read_register(reg,val) \
do{ \
Am9513_output_control(reg); \
val=Am9513_input_data(); \
}while(0)
#endif
#endif
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