54 строки
1.6 KiB
C
54 строки
1.6 KiB
C
/*
|
|
* ntc_thermistor.h - NTC Thermistors
|
|
*
|
|
* Copyright (C) 2010 Samsung Electronics
|
|
* MyungJoo Ham <myungjoo.ham@samsung.com>
|
|
*
|
|
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
#ifndef _LINUX_NTC_H
|
|
#define _LINUX_NTC_H
|
|
|
|
enum ntc_thermistor_type {
|
|
TYPE_NCPXXWB473,
|
|
TYPE_NCPXXWL333,
|
|
};
|
|
|
|
struct ntc_thermistor_platform_data {
|
|
/*
|
|
* One (not both) of read_uV and read_ohm should be provided and only
|
|
* one of the two should be provided.
|
|
* Both functions should return negative value for an error case.
|
|
*
|
|
* pullup_uV, pullup_ohm, pulldown_ohm, and connect are required to use
|
|
* read_uV()
|
|
*
|
|
* How to setup pullup_ohm, pulldown_ohm, and connect is
|
|
* described at Documentation/hwmon/ntc_thermistor
|
|
*
|
|
* pullup/down_ohm: 0 for infinite / not-connected
|
|
*/
|
|
int (*read_uV)(void);
|
|
unsigned int pullup_uV;
|
|
|
|
unsigned int pullup_ohm;
|
|
unsigned int pulldown_ohm;
|
|
enum { NTC_CONNECTED_POSITIVE, NTC_CONNECTED_GROUND } connect;
|
|
|
|
int (*read_ohm)(void);
|
|
};
|
|
|
|
#endif /* _LINUX_NTC_H */
|