| /* |
| * 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 */ |
