LXR uboot/include/dtt.h

   1/*
   2 * (C) Copyright 2001
   3 * Erik Theisen,  Wave 7 Optics, etheisen@mindspring.com.
   4 *
   5 * See file CREDITS for list of people who contributed to this
   6 * project.
   7 *
   8 * This program is free software; you can redistribute it and/or
   9 * modify it under the terms of the GNU General Public License as
  10 * published by the Free Software Foundation; either version 2 of
  11 * the License, or (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., 59 Temple Place, Suite 330, Boston,
  21 * MA 02111-1307 USA
  22 */
  23
  24/*
  25 * Digital Thermometers and Thermostats.
  26 */
  27#ifndef _DTT_H_
  28#define _DTT_H_
  29
  30#if defined(CONFIG_DTT_ADM1021) || \
  31    defined(CONFIG_DTT_ADT7460) || \
  32    defined(CONFIG_DTT_DS1621)  || \
  33    defined(CONFIG_DTT_DS1775)  || \
  34    defined(CONFIG_DTT_LM63)    || \
  35    defined(CONFIG_DTT_LM73)    || \
  36    defined(CONFIG_DTT_LM75)    || \
  37    defined(CONFIG_DTT_LM81)
  38
  39#define CONFIG_DTT                              /* We have a DTT */
  40
  41#ifndef CONFIG_DTT_ADM1021
  42#define DTT_COMMERCIAL_MAX_TEMP 70              /* 0 - +70 C */
  43#define DTT_INDUSTRIAL_MAX_TEMP 85              /* -40 - +85 C */
  44#define DTT_AUTOMOTIVE_MAX_TEMP 105             /* -40 - +105 C */
  45
  46#ifndef CONFIG_SYS_DTT_MAX_TEMP
  47#define CONFIG_SYS_DTT_MAX_TEMP DTT_COMMERCIAL_MAX_TEMP
  48#endif
  49
  50#ifndef CONFIG_SYS_DTT_HYSTERESIS
  51#define CONFIG_SYS_DTT_HYSTERESIS       5               /* 5 C */
  52#endif
  53#endif /* CONFIG_DTT_ADM1021 */
  54
  55extern int dtt_init (void);
  56extern int dtt_read(int sensor, int reg);
  57extern int dtt_write(int sensor, int reg, int val);
  58extern int dtt_get_temp(int sensor);
  59#endif
  60
  61#endif /* _DTT_H_ */
  62