/*
* nct6683 - Driver for the hardware monitoring functionality of
* Nuvoton NCT6683D eSIO
*
* Copyright (C) 2013 Guenter Roeck <linux@roeck-us.net>
*
* Derived from nct6775 driver
* Copyright (C) 2012, 2013 Guenter Roeck <linux@roeck-us.net>
*
* 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.
*
* Supports the following chips:
*
* Chip #vin #fan #pwm #temp chip ID
* nct6683d 21(1) 16 8 32(1) 0xc730
*
* Notes:
* (1) Total number of vin and temp inputs is 32.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/acpi.h>
#include <linux/dmi.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/jiffies.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
enum kinds { nct6683 };
static bool force;
module_param(force, bool, 0);
MODULE_PARM_DESC(force, "Set to one to enable detection on non-Intel boards");
static const char * const nct6683_device_names[] = {
"nct6683",
};
static const char * const nct6683_chip_names[] = {
"NCT6683D",
};
#define DRVNAME "nct6683"
/*
* Super-I/O constants and functions
*/
#define NCT6683_LD_ACPI 0x0a
#define NCT6683_LD_HWM 0x0b
#define NCT6683_LD_VID 0x0d
#define SIO_REG_LDSEL 0x07 /* Logical device select */
#define SIO_REG_DEVID 0x20 /* Device ID (2 bytes) */
#define SIO_REG_ENABLE 0x30 /* Logical device enable */
#define SIO_REG_ADDR 0x60 /* Logical device address (2 bytes) */
#define SIO_NCT6681_ID 0xb270 /* for later */
#define SIO_NCT6683_ID 0xc730
#define SIO_ID_MASK 0xFFF0
static inline void
superio_outb(int ioreg, int reg, int val)
{
outb(reg, ioreg);
outb(val, ioreg + 1);
}
static inline 