linux-imx

/*

 *  w83627ehf - Driver for the hardware monitoring functionality of

 *      the Winbond W83627EHF Super-I/O chip

 *  Copyright (C) 2005-2012  Jean Delvare <jdelvare@suse.de>

 *  Copyright (C) 2006  Yuan Mu (Winbond),

 *          Rudolf Marek <r.marek@assembler.cz>

 *          David Hubbard <david.c.hubbard@gmail.com>

 *          Daniel J Blueman <daniel.blueman@gmail.com>

 *  Copyright (C) 2010  Sheng-Yuan Huang (Nuvoton) (PS00)

 *

 *  Shamelessly ripped from the w83627hf driver

 *  Copyright (C) 2003  Mark Studebaker

 *

 *  Thanks to Leon Moonen, Steve Cliffe and Grant Coady for their help

 *  in testing and debugging this driver.

 *

 *  This driver also supports the W83627EHG, which is the lead-free

 *  version of the W83627EHF.

 *

 *  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.

 *

 *  Supports the following chips:

 *

 *  Chip        #vin    #fan    #pwm    #temp  chip IDs       man ID

 *  w83627ehf   10      5       4       3      0x8850 0x88    0x5ca3

 *                         0x8860 0xa1

 *  w83627dhg    9      5       4       3      0xa020 0xc1    0x5ca3

 *  w83627dhg-p  9      5       4       3      0xb070 0xc1    0x5ca3

 *  w83627uhg    8      2       2       3      0xa230 0xc1    0x5ca3

 *  w83667hg     9      5       3       3      0xa510 0xc1    0x5ca3

 *  w83667hg-b   9      5       3       4      0xb350 0xc1    0x5ca3

 *  nct6775f     9      4       3       9      0xb470 0xc1    0x5ca3

 *  nct6776f     9      5       3       9      0xC330 0xc1    0x5ca3

 */

​

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

​

#include <linux/module.h>

#include <linux/init.h>

#include <linux/slab.h>

#include <linux/jiffies.h>

#include <linux/platform_device.h>

#include <linux/hwmon.h>

#include <linux/hwmon-sysfs.h>

#include <linux/hwmon-vid.h>

#include <linux/err.h>

#include <linux/mutex.h>

#include <linux/acpi.h>

#include <linux/io.h>

#include "lm75.h"

​

enum kinds {

    w83627ehf, w83627dhg, w83627dhg_p, w83627uhg,

    w83667hg, w83667hg_b, nct6775, nct6776,

};

​

/* used to set data->name = w83627ehf_device_names[data->sio_kind] */

static const char * const w83627ehf_device_names[] = {

    "w83627ehf",

    "w83627dhg",

    "w83627dhg",

    "w83627uhg",

    "w83667hg",

    "w83667hg",

    "nct6775",

    "nct6776",

};

​

static unsigned short force_id;

module_param(force_id, ushort, 0);

MODULE_PARM_DESC(force_id, "Override the detected device ID");

​

static unsigned short fan_debounce;

module_param(fan_debounce, ushort, 0);

MODULE_PARM_DESC(fan_debounce, "Enable debouncing for fan RPM signal");

​

#define DRVNAME "w83627ehf"

​

/*

 * Super-I/O constants and functions