linux-imx

/*

 * lm80.c - From lm_sensors, Linux kernel modules for hardware

 *      monitoring

 * Copyright (C) 1998, 1999  Frodo Looijaard <frodol@dds.nl>

 *               and Philip Edelbrock <phil@netroedge.com>

 *

 * Ported to Linux 2.6 by Tiago Sousa <mirage@kaotik.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.

 */

​

#include <linux/module.h>

#include <linux/init.h>

#include <linux/slab.h>

#include <linux/jiffies.h>

#include <linux/i2c.h>

#include <linux/hwmon.h>

#include <linux/hwmon-sysfs.h>

#include <linux/err.h>

#include <linux/mutex.h>

​

/* Addresses to scan */

static const unsigned short normal_i2c[] = { 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d,

                        0x2e, 0x2f, I2C_CLIENT_END };

​

/* Many LM80 constants specified below */

​

/* The LM80 registers */

#define LM80_REG_IN_MAX(nr)     (0x2a + (nr) * 2)

#define LM80_REG_IN_MIN(nr)     (0x2b + (nr) * 2)

#define LM80_REG_IN(nr)         (0x20 + (nr))

​

#define LM80_REG_FAN1           0x28

#define LM80_REG_FAN2           0x29

#define LM80_REG_FAN_MIN(nr)        (0x3b + (nr))

​

#define LM80_REG_TEMP           0x27

#define LM80_REG_TEMP_HOT_MAX       0x38

#define LM80_REG_TEMP_HOT_HYST      0x39

#define LM80_REG_TEMP_OS_MAX        0x3a

#define LM80_REG_TEMP_OS_HYST       0x3b

​

#define LM80_REG_CONFIG         0x00

#define LM80_REG_ALARM1         0x01

#define LM80_REG_ALARM2         0x02

#define LM80_REG_MASK1          0x03

#define LM80_REG_MASK2          0x04

#define LM80_REG_FANDIV         0x05

#define LM80_REG_RES            0x06

​

#define LM96080_REG_CONV_RATE       0x07