[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / staging / comedi / drivers / am9513.h

/*
    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
Commit	Line	Data
fc59905e DS	1	/*
	2	module/am9513.h
	3	value added preprocessor definitions for Am9513 timer chip
	4
	5	COMEDI - Linux Control and Measurement Device Interface
	6	Copyright (C) 1998 David A. Schleef <ds@schleef.org>
	7
	8	This program is free software; you can redistribute it and/or modify
	9	it under the terms of the GNU General Public License as published by
	10	the Free Software Foundation; either version 2 of the License, or
	11	(at your option) any later version.
	12
	13	This program is distributed in the hope that it will be useful,
	14	but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	GNU General Public License for more details.
	17
	18	You should have received a copy of the GNU General Public License
	19	along with this program; if not, write to the Free Software
	20	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	21
	22	*/
	23
	24	#ifndef _AM9513_H_
	25	#define _AM9513_H_
	26
	27	#if 0
	28
	29	/*
	30	* Before including this file, the following need to be defined:
	31	*/
	32	#define Am9513_8BITBUS xxx
	33	/* or */
	34	#define Am9513_16BITBUS xxx
	35
	36	#define Am9513_output_control(a) xxx
	37	#define Am9513_input_status() xxx
	38	#define Am9513_output_data(a) xxx
	39	#define Am9513_input_data() xxx
	40
	41	#endif
	42
	43	/*
	44	*
	45	*/
	46
	47	#ifdef Am9513_8BITBUS
	48
f7cbd7aa	49	#define Am9513_write_register(reg, val) \
0c55484d	50	do { \
fc59905e DS	51	Am9513_output_control(reg); \
	52	Am9513_output_data(val>>8); \
	53	Am9513_output_data(val&0xff); \
0c55484d	54	} while (0)
fc59905e	55
f7cbd7aa	56	#define Am9513_read_register(reg, val) \
0c55484d	57	do { \
fc59905e	58	Am9513_output_control(reg); \
0c55484d BB	59	val = Am9513_input_data()<<8; \
	60	val \|= Am9513_input_data(); \
	61	} while (0)
fc59905e DS	62
	63	#else /* Am9513_16BITBUS */
	64
f7cbd7aa	65	#define Am9513_write_register(reg, val) \
0c55484d	66	do { \
fc59905e DS	67	Am9513_output_control(reg); \
fc59905e DS	68	Am9513_output_data(val); \
0c55484d	69	} while (0)
fc59905e	70
f7cbd7aa	71	#define Am9513_read_register(reg, val) \
0c55484d	72	do { \
fc59905e	73	Am9513_output_control(reg); \
0c55484d BB	74	val = Am9513_input_data(); \
0c55484d BB	75	} while (0)
fc59905e DS	76
	77	#endif
	78
	79	#endif