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linux/drivers/hwmon/w83627hf.c
Christian Schulte c46c0e9188 hwmon: (w83627hf) Fix for "No such device" 
The commit b72656dbc4 introduced
a bug leading to the w83627hf_find function no longer finding
any chips.

Signed-off-by: Christian Schulte <cs@schulte.it>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
2009-12-16 21:38:29 +01:00

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/*
w83627hf.c - Part of lm_sensors, Linux kernel modules for hardware
monitoring
Copyright (c) 1998 - 2003 Frodo Looijaard <frodol@dds.nl>,
Philip Edelbrock <phil@netroedge.com>,
and Mark Studebaker <mdsxyz123@yahoo.com>
Ported to 2.6 by Bernhard C. Schrenk <clemy@clemy.org>
Copyright (c) 2007 Jean Delvare <khali@linux-fr.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.
*/
/*
Supports following chips:
Chip #vin #fanin #pwm #temp wchipid vendid i2c ISA
w83627hf 9 3 2 3 0x20 0x5ca3 no yes(LPC)
w83627thf 7 3 3 3 0x90 0x5ca3 no yes(LPC)
w83637hf 7 3 3 3 0x80 0x5ca3 no yes(LPC)
w83687thf 7 3 3 3 0x90 0x5ca3 no yes(LPC)
w83697hf 8 2 2 2 0x60 0x5ca3 no yes(LPC)
For other winbond chips, and for i2c support in the above chips,
use w83781d.c.
Note: automatic ("cruise") fan control for 697, 637 & 627thf not
supported yet.
*/
#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/ioport.h>
#include <linux/acpi.h>
#include <linux/io.h>
#include "lm75.h"
static struct platform_device *pdev;
#define DRVNAME "w83627hf"
enum chips { w83627hf, w83627thf, w83697hf, w83637hf, w83687thf };
struct w83627hf_sio_data {
enum chips type;
int sioaddr;
};
static u8 force_i2c = 0x1f;
module_param(force_i2c, byte, 0);
MODULE_PARM_DESC(force_i2c,
"Initialize the i2c address of the sensors");
static int init = 1;
module_param(init, bool, 0);
MODULE_PARM_DESC(init, "Set to zero to bypass chip initialization");
static unsigned short force_id;
module_param(force_id, ushort, 0);
MODULE_PARM_DESC(force_id, "Override the detected device ID");
/* modified from kernel/include/traps.c */
#define DEV 0x07 /* Register: Logical device select */
/* logical device numbers for superio_select (below) */
#define W83627HF_LD_FDC 0x00
#define W83627HF_LD_PRT 0x01
#define W83627HF_LD_UART1 0x02
#define W83627HF_LD_UART2 0x03
#define W83627HF_LD_KBC 0x05
#define W83627HF_LD_CIR 0x06 /* w83627hf only */
#define W83627HF_LD_GAME 0x07
#define W83627HF_LD_MIDI 0x07
#define W83627HF_LD_GPIO1 0x07
#define W83627HF_LD_GPIO5 0x07 /* w83627thf only */
#define W83627HF_LD_GPIO2 0x08
#define W83627HF_LD_GPIO3 0x09
#define W83627HF_LD_GPIO4 0x09 /* w83627thf only */
#define W83627HF_LD_ACPI 0x0a
#define W83627HF_LD_HWM 0x0b
#define DEVID 0x20 /* Register: Device ID */
#define W83627THF_GPIO5_EN 0x30 /* w83627thf only */
#define W83627THF_GPIO5_IOSR 0xf3 /* w83627thf only */
#define W83627THF_GPIO5_DR 0xf4 /* w83627thf only */
#define W83687THF_VID_EN 0x29 /* w83687thf only */
#define W83687THF_VID_CFG 0xF0 /* w83687thf only */
#define W83687THF_VID_DATA 0xF1 /* w83687thf only */
static inline void
superio_outb(struct w83627hf_sio_data *sio, int reg, int val)
{
outb(reg, sio->sioaddr);
outb(val, sio->sioaddr + 1);
}
static inline int
superio_inb(struct w83627hf_sio_data *sio, int reg)
{
outb(reg, sio->sioaddr);
return inb(sio->sioaddr + 1);
}
static inline void
superio_select(struct w83627hf_sio_data *sio, int ld)
{
outb(DEV, sio->sioaddr);
outb(ld, sio->sioaddr + 1);
}
static inline void
superio_enter(struct w83627hf_sio_data *sio)
{
outb(0x87, sio->sioaddr);
outb(0x87, sio->sioaddr);
}
static inline void
superio_exit(struct w83627hf_sio_data *sio)
{
outb(0xAA, sio->sioaddr);
}
#define W627_DEVID 0x52
#define W627THF_DEVID 0x82
#define W697_DEVID 0x60
#define W637_DEVID 0x70
#define W687THF_DEVID 0x85
#define WINB_ACT_REG 0x30
#define WINB_BASE_REG 0x60
/* Constants specified below */
/* Alignment of the base address */
#define WINB_ALIGNMENT ~7
/* Offset & size of I/O region we are interested in */
#define WINB_REGION_OFFSET 5
#define WINB_REGION_SIZE 2
/* Where are the sensors address/data registers relative to the region offset */
#define W83781D_ADDR_REG_OFFSET 0
#define W83781D_DATA_REG_OFFSET 1
/* The W83781D registers */
/* The W83782D registers for nr=7,8 are in bank 5 */
#define W83781D_REG_IN_MAX(nr) ((nr < 7) ? (0x2b + (nr) * 2) : \
(0x554 + (((nr) - 7) * 2)))
#define W83781D_REG_IN_MIN(nr) ((nr < 7) ? (0x2c + (nr) * 2) : \
(0x555 + (((nr) - 7) * 2)))
#define W83781D_REG_IN(nr) ((nr < 7) ? (0x20 + (nr)) : \
(0x550 + (nr) - 7))
/* nr:0-2 for fans:1-3 */
#define W83627HF_REG_FAN_MIN(nr) (0x3b + (nr))
#define W83627HF_REG_FAN(nr) (0x28 + (nr))
#define W83627HF_REG_TEMP2_CONFIG 0x152
#define W83627HF_REG_TEMP3_CONFIG 0x252
/* these are zero-based, unlike config constants above */
static const u16 w83627hf_reg_temp[] = { 0x27, 0x150, 0x250 };
static const u16 w83627hf_reg_temp_hyst[] = { 0x3A, 0x153, 0x253 };
static const u16 w83627hf_reg_temp_over[] = { 0x39, 0x155, 0x255 };
#define W83781D_REG_BANK 0x4E
#define W83781D_REG_CONFIG 0x40
#define W83781D_REG_ALARM1 0x459
#define W83781D_REG_ALARM2 0x45A
#define W83781D_REG_ALARM3 0x45B
#define W83781D_REG_BEEP_CONFIG 0x4D
#define W83781D_REG_BEEP_INTS1 0x56
#define W83781D_REG_BEEP_INTS2 0x57
#define W83781D_REG_BEEP_INTS3 0x453
#define W83781D_REG_VID_FANDIV 0x47
#define W83781D_REG_CHIPID 0x49
#define W83781D_REG_WCHIPID 0x58
#define W83781D_REG_CHIPMAN 0x4F
#define W83781D_REG_PIN 0x4B
#define W83781D_REG_VBAT 0x5D
#define W83627HF_REG_PWM1 0x5A
#define W83627HF_REG_PWM2 0x5B
static const u8 W83627THF_REG_PWM_ENABLE[] = {
0x04, /* FAN 1 mode */
0x04, /* FAN 2 mode */
0x12, /* FAN AUX mode */
};
static const u8 W83627THF_PWM_ENABLE_SHIFT[] = { 2, 4, 1 };
#define W83627THF_REG_PWM1 0x01 /* 697HF/637HF/687THF too */
#define W83627THF_REG_PWM2 0x03 /* 697HF/637HF/687THF too */
#define W83627THF_REG_PWM3 0x11 /* 637HF/687THF too */
#define W83627THF_REG_VRM_OVT_CFG 0x18 /* 637HF/687THF too */
static const u8 regpwm_627hf[] = { W83627HF_REG_PWM1, W83627HF_REG_PWM2 };
static const u8 regpwm[] = { W83627THF_REG_PWM1, W83627THF_REG_PWM2,
W83627THF_REG_PWM3 };
#define W836X7HF_REG_PWM(type, nr) (((type) == w83627hf) ? \
regpwm_627hf[nr] : regpwm[nr])
#define W83627HF_REG_PWM_FREQ 0x5C /* Only for the 627HF */
#define W83637HF_REG_PWM_FREQ1 0x00 /* 697HF/687THF too */
#define W83637HF_REG_PWM_FREQ2 0x02 /* 697HF/687THF too */
#define W83637HF_REG_PWM_FREQ3 0x10 /* 687THF too */
static const u8 W83637HF_REG_PWM_FREQ[] = { W83637HF_REG_PWM_FREQ1,
W83637HF_REG_PWM_FREQ2,
W83637HF_REG_PWM_FREQ3 };
#define W83627HF_BASE_PWM_FREQ 46870
#define W83781D_REG_I2C_ADDR 0x48
#define W83781D_REG_I2C_SUBADDR 0x4A
/* Sensor selection */
#define W83781D_REG_SCFG1 0x5D
static const u8 BIT_SCFG1[] = { 0x02, 0x04, 0x08 };
#define W83781D_REG_SCFG2 0x59
static const u8 BIT_SCFG2[] = { 0x10, 0x20, 0x40 };
#define W83781D_DEFAULT_BETA 3435
/* Conversions. Limit checking is only done on the TO_REG
variants. Note that you should be a bit careful with which arguments
these macros are called: arguments may be evaluated more than once.
Fixing this is just not worth it. */
#define IN_TO_REG(val) (SENSORS_LIMIT((((val) + 8)/16),0,255))
#define IN_FROM_REG(val) ((val) * 16)
static inline u8 FAN_TO_REG(long rpm, int div)
{
if (rpm == 0)
return 255;
rpm = SENSORS_LIMIT(rpm, 1, 1000000);
return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1,
254);
}
#define TEMP_MIN (-128000)
#define TEMP_MAX ( 127000)
/* TEMP: 0.001C/bit (-128C to +127C)
REG: 1C/bit, two's complement */
static u8 TEMP_TO_REG(long temp)
{
int ntemp = SENSORS_LIMIT(temp, TEMP_MIN, TEMP_MAX);
ntemp += (ntemp<0 ? -500 : 500);
return (u8)(ntemp / 1000);
}
static int TEMP_FROM_REG(u8 reg)
{
return (s8)reg * 1000;
}
#define FAN_FROM_REG(val,div) ((val)==0?-1:(val)==255?0:1350000/((val)*(div)))
#define PWM_TO_REG(val) (SENSORS_LIMIT((val),0,255))
static inline unsigned long pwm_freq_from_reg_627hf(u8 reg)
{
unsigned long freq;
freq = W83627HF_BASE_PWM_FREQ >> reg;
return freq;
}
static inline u8 pwm_freq_to_reg_627hf(unsigned long val)
{
u8 i;
/* Only 5 dividers (1 2 4 8 16)
Search for the nearest available frequency */
for (i = 0; i < 4; i++) {
if (val > (((W83627HF_BASE_PWM_FREQ >> i) +
(W83627HF_BASE_PWM_FREQ >> (i+1))) / 2))
break;
}
return i;
}
static inline unsigned long pwm_freq_from_reg(u8 reg)
{
/* Clock bit 8 -> 180 kHz or 24 MHz */
unsigned long clock = (reg & 0x80) ? 180000UL : 24000000UL;
reg &= 0x7f;
/* This should not happen but anyway... */
if (reg == 0)
reg++;
return (clock / (reg << 8));
}
static inline u8 pwm_freq_to_reg(unsigned long val)
{
/* Minimum divider value is 0x01 and maximum is 0x7F */
if (val >= 93750) /* The highest we can do */
return 0x01;
if (val >= 720) /* Use 24 MHz clock */
return (24000000UL / (val << 8));
if (val < 6) /* The lowest we can do */
return 0xFF;
else /* Use 180 kHz clock */
return (0x80 | (180000UL / (val << 8)));
}
#define BEEP_MASK_FROM_REG(val) ((val) & 0xff7fff)
#define BEEP_MASK_TO_REG(val) ((val) & 0xff7fff)
#define DIV_FROM_REG(val) (1 << (val))
static inline u8 DIV_TO_REG(long val)
{
int i;
val = SENSORS_LIMIT(val, 1, 128) >> 1;
for (i = 0; i < 7; i++) {
if (val == 0)
break;
val >>= 1;
}
return ((u8) i);
}
/* For each registered chip, we need to keep some data in memory.
The structure is dynamically allocated. */
struct w83627hf_data {
unsigned short addr;
const char *name;
struct device *hwmon_dev;
struct mutex lock;
enum chips type;
struct mutex update_lock;
char valid; /* !=0 if following fields are valid */
unsigned long last_updated; /* In jiffies */
u8 in[9]; /* Register value */
u8 in_max[9]; /* Register value */
u8 in_min[9]; /* Register value */
u8 fan[3]; /* Register value */
u8 fan_min[3]; /* Register value */
u16 temp[3]; /* Register value */
u16 temp_max[3]; /* Register value */
u16 temp_max_hyst[3]; /* Register value */
u8 fan_div[3]; /* Register encoding, shifted right */
u8 vid; /* Register encoding, combined */
u32 alarms; /* Register encoding, combined */
u32 beep_mask; /* Register encoding, combined */
u8 pwm[3]; /* Register value */
u8 pwm_enable[3]; /* 1 = manual
2 = thermal cruise (also called SmartFan I)
3 = fan speed cruise */
u8 pwm_freq[3]; /* Register value */
u16 sens[3]; /* 1 = pentium diode; 2 = 3904 diode;
4 = thermistor */
u8 vrm;
u8 vrm_ovt; /* Register value, 627THF/637HF/687THF only */
};
static int w83627hf_probe(struct platform_device *pdev);
static int __devexit w83627hf_remove(struct platform_device *pdev);
static int w83627hf_read_value(struct w83627hf_data *data, u16 reg);
static int w83627hf_write_value(struct w83627hf_data *data, u16 reg, u16 value);
static void w83627hf_update_fan_div(struct w83627hf_data *data);
static struct w83627hf_data *w83627hf_update_device(struct device *dev);
static void w83627hf_init_device(struct platform_device *pdev);
static struct platform_driver w83627hf_driver = {
.driver = {
.owner = THIS_MODULE,
.name = DRVNAME,
},
.probe = w83627hf_probe,
.remove = __devexit_p(w83627hf_remove),
};
static ssize_t
show_in_input(struct device *dev, struct device_attribute *devattr, char *buf)
{
int nr = to_sensor_dev_attr(devattr)->index;
struct w83627hf_data *data = w83627hf_update_device(dev);
return sprintf(buf, "%ld\n", (long)IN_FROM_REG(data->in[nr]));
}
static ssize_t
show_in_min(struct device *dev, struct device_attribute *devattr, char *buf)
{
int nr = to_sensor_dev_attr(devattr)->index;
struct w83627hf_data *data = w83627hf_update_device(dev);
return sprintf(buf, "%ld\n", (long)IN_FROM_REG(data->in_min[nr]));
}
static ssize_t
show_in_max(struct device *dev, struct device_attribute *devattr, char *buf)
{
int nr = to_sensor_dev_attr(devattr)->index;
struct w83627hf_data *data = w83627hf_update_device(dev);
return sprintf(buf, "%ld\n", (long)IN_FROM_REG(data->in_max[nr]));
}
static ssize_t
store_in_min(struct device *dev, struct device_attribute *devattr,
const char *buf, size_t count)
{
int nr = to_sensor_dev_attr(devattr)->index;
struct w83627hf_data *data = dev_get_drvdata(dev);
long val = simple_strtol(buf, NULL, 10);
mutex_lock(&data->update_lock);
data->in_min[nr] = IN_TO_REG(val);
w83627hf_write_value(data, W83781D_REG_IN_MIN(nr), data->in_min[nr]);
mutex_unlock(&data->update_lock);
return count;
}
static ssize_t
store_in_max(struct device *dev, struct device_attribute *devattr,
const char *buf, size_t count)
{
int nr = to_sensor_dev_attr(devattr)->index;
struct w83627hf_data *data = dev_get_drvdata(dev);
long val = simple_strtol(buf, NULL, 10);
mutex_lock(&data->update_lock);
data->in_max[nr] = IN_TO_REG(val);
w83627hf_write_value(data, W83781D_REG_IN_MAX(nr), data->in_max[nr]);
mutex_unlock(&data->update_lock);
return count;
}
#define sysfs_vin_decl(offset) \
static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \
show_in_input, NULL, offset); \
static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO|S_IWUSR, \
show_in_min, store_in_min, offset); \
static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO|S_IWUSR, \
show_in_max, store_in_max, offset);
sysfs_vin_decl(1);
sysfs_vin_decl(2);
sysfs_vin_decl(3);
sysfs_vin_decl(4);
sysfs_vin_decl(5);
sysfs_vin_decl(6);
sysfs_vin_decl(7);
sysfs_vin_decl(8);
/* use a different set of functions for in0 */
static ssize_t show_in_0(struct w83627hf_data *data, char *buf, u8 reg)
{
long in0;
if ((data->vrm_ovt & 0x01) &&
(w83627thf == data->type || w83637hf == data->type
|| w83687thf == data->type))
/* use VRM9 calculation */
in0 = (long)((reg * 488 + 70000 + 50) / 100);
else
/* use VRM8 (standard) calculation */
in0 = (long)IN_FROM_REG(reg);
return sprintf(buf,"%ld\n", in0);
}
static ssize_t show_regs_in_0(struct device *dev, struct device_attribute *attr, char *buf)
{
struct w83627hf_data *data = w83627hf_update_device(dev);
return show_in_0(data, buf, data->in[0]);
}
static ssize_t show_regs_in_min0(struct device *dev, struct device_attribute *attr, char *buf)
{
struct w83627hf_data *data = w83627hf_update_device(dev);
return show_in_0(data, buf, data->in_min[0]);
}
static ssize_t show_regs_in_max0(struct device *dev, struct device_attribute *attr, char *buf)
{
struct w83627hf_data *data = w83627hf_update_device(dev);
return show_in_0(data, buf, data->in_max[0]);
}
static ssize_t store_regs_in_min0(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct w83627hf_data *data = dev_get_drvdata(dev);
u32 val;
val = simple_strtoul(buf, NULL, 10);
mutex_lock(&data->update_lock);
if ((data->vrm_ovt & 0x01) &&
(w83627thf == data->type || w83637hf == data->type
|| w83687thf == data->type))
/* use VRM9 calculation */
data->in_min[0] =
SENSORS_LIMIT(((val * 100) - 70000 + 244) / 488, 0,
255);
else
/* use VRM8 (standard) calculation */
data->in_min[0] = IN_TO_REG(val);
w83627hf_write_value(data, W83781D_REG_IN_MIN(0), data->in_min[0]);
mutex_unlock(&data->update_lock);
return count;
}
static ssize_t store_regs_in_max0(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct w83627hf_data *data = dev_get_drvdata(dev);
u32 val;
val = simple_strtoul(buf, NULL, 10);
mutex_lock(&data->update_lock);
if ((data->vrm_ovt & 0x01) &&
(w83627thf == data->type || w83637hf == data->type
|| w83687thf == data->type))
/* use VRM9 calculation */
data->in_max[0] =
SENSORS_LIMIT(((val * 100) - 70000 + 244) / 488, 0,
255);
else
/* use VRM8 (standard) calculation */
data->in_max[0] = IN_TO_REG(val);
w83627hf_write_value(data, W83781D_REG_IN_MAX(0), data->in_max[0]);
mutex_unlock(&data->update_lock);
return count;
}
static DEVICE_ATTR(in0_input, S_IRUGO, show_regs_in_0, NULL);
static DEVICE_ATTR(in0_min, S_IRUGO | S_IWUSR,
show_regs_in_min0, store_regs_in_min0);
static DEVICE_ATTR(in0_max, S_IRUGO | S_IWUSR,
show_regs_in_max0, store_regs_in_max0);
static ssize_t
show_fan_input(struct device *dev, struct device_attribute *devattr, char *buf)
{
int nr = to_sensor_dev_attr(devattr)->index;
struct w83627hf_data *data = w83627hf_update_device(dev);
return sprintf(buf, "%ld\n", FAN_FROM_REG(data->fan[nr],
(long)DIV_FROM_REG(data->fan_div[nr])));
}
static ssize_t
show_fan_min(struct device *dev, struct device_attribute *devattr, char *buf)
{
int nr = to_sensor_dev_attr(devattr)->index;
struct w83627hf_data *data = w83627hf_update_device(dev);
return sprintf(buf, "%ld\n", FAN_FROM_REG(data->fan_min[nr],
(long)DIV_FROM_REG(data->fan_div[nr])));
}
static ssize_t
store_fan_min(struct device *dev, struct device_attribute *devattr,
const char *buf, size_t count)
{
int nr = to_sensor_dev_attr(devattr)->index;
struct w83627hf_data *data = dev_get_drvdata(dev);
u32 val = simple_strtoul(buf, NULL, 10);
mutex_lock(&data->update_lock);
data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
w83627hf_write_value(data, W83627HF_REG_FAN_MIN(nr),
data->fan_min[nr]);
mutex_unlock(&data->update_lock);
return count;
}
#define sysfs_fan_decl(offset) \
static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \
show_fan_input, NULL, offset - 1); \
static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
show_fan_min, store_fan_min, offset - 1);
sysfs_fan_decl(1);
sysfs_fan_decl(2);
sysfs_fan_decl(3);
static ssize_t
show_temp(struct device *dev, struct device_attribute *devattr, char *buf)
{
int nr = to_sensor_dev_attr(devattr)->index;
struct w83627hf_data *data = w83627hf_update_device(dev);
u16 tmp = data->temp[nr];
return sprintf(buf, "%ld\n", (nr) ? (long) LM75_TEMP_FROM_REG(tmp)
: (long) TEMP_FROM_REG(tmp));
}
static ssize_t
show_temp_max(struct device *dev, struct device_attribute *devattr,
char *buf)
{
int nr = to_sensor_dev_attr(devattr)->index;
struct w83627hf_data *data = w83627hf_update_device(dev);
u16 tmp = data->temp_max[nr];
return sprintf(buf, "%ld\n", (nr) ? (long) LM75_TEMP_FROM_REG(tmp)
: (long) TEMP_FROM_REG(tmp));
}
static ssize_t
show_temp_max_hyst(struct device *dev, struct device_attribute *devattr,
char *buf)
{
int nr = to_sensor_dev_attr(devattr)->index;
struct w83627hf_data *data = w83627hf_update_device(dev);
u16 tmp = data->temp_max_hyst[nr];
return sprintf(buf, "%ld\n", (nr) ? (long) LM75_TEMP_FROM_REG(tmp)
: (long) TEMP_FROM_REG(tmp));
}
static ssize_t
store_temp_max(struct device *dev, struct device_attribute *devattr,
const char *buf, size_t count)
{
int nr = to_sensor_dev_attr(devattr)->index;
struct w83627hf_data *data = dev_get_drvdata(dev);
long val = simple_strtol(buf, NULL, 10);
u16 tmp = (nr) ? LM75_TEMP_TO_REG(val) : TEMP_TO_REG(val);
mutex_lock(&data->update_lock);
data->temp_max[nr] = tmp;
w83627hf_write_value(data, w83627hf_reg_temp_over[nr], tmp);
mutex_unlock(&data->update_lock);
return count;
}
static ssize_t
store_temp_max_hyst(struct device *dev, struct device_attribute *devattr,
const char *buf, size_t count)
{
int nr = to_sensor_dev_attr(devattr)->index;
struct w83627hf_data *data = dev_get_drvdata(dev);
long val = simple_strtol(buf, NULL, 10);
u16 tmp = (nr) ? LM75_TEMP_TO_REG(val) : TEMP_TO_REG(val);
mutex_lock(&data->update_lock);
data->temp_max_hyst[nr] = tmp;
w83627hf_write_value(data, w83627hf_reg_temp_hyst[nr], tmp);
mutex_unlock(&data->update_lock);
return count;
}
#define sysfs_temp_decl(offset) \
static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
show_temp, NULL, offset - 1); \
static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO|S_IWUSR, \
show_temp_max, store_temp_max, offset - 1); \
static SENSOR_DEVICE_ATTR(temp##offset##_max_hyst, S_IRUGO|S_IWUSR, \
show_temp_max_hyst, store_temp_max_hyst, offset - 1);
sysfs_temp_decl(1);
sysfs_temp_decl(2);
sysfs_temp_decl(3);
static ssize_t
show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf)
{
struct w83627hf_data *data = w83627hf_update_device(dev);
return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
}
static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
static ssize_t
show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
{
struct w83627hf_data *data = dev_get_drvdata(dev);
return sprintf(buf, "%ld\n", (long) data->vrm);
}
static ssize_t
store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
{
struct w83627hf_data *data = dev_get_drvdata(dev);
u32 val;
val = simple_strtoul(buf, NULL, 10);
data->vrm = val;
return count;
}
static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
static ssize_t
show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
{
struct w83627hf_data *data = w83627hf_update_device(dev);
return sprintf(buf, "%ld\n", (long) data->alarms);
}
static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
static ssize_t
show_alarm(struct device *dev, struct device_attribute *attr, char *buf)
{
struct w83627hf_data *data = w83627hf_update_device(dev);
int bitnr = to_sensor_dev_attr(attr)->index;
return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
}
static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8);
static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 9);
static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 10);
static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 16);
static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 17);
static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6);
static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7);
static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11);
static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4);
static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5);
static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13);
static ssize_t
show_beep_mask(struct device *dev, struct device_attribute *attr, char *buf)
{
struct w83627hf_data *data = w83627hf_update_device(dev);
return sprintf(buf, "%ld\n",
(long)BEEP_MASK_FROM_REG(data->beep_mask));
}
static ssize_t
store_beep_mask(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct w83627hf_data *data = dev_get_drvdata(dev);
unsigned long val;
val = simple_strtoul(buf, NULL, 10);
mutex_lock(&data->update_lock);
/* preserve beep enable */
data->beep_mask = (data->beep_mask & 0x8000)
| BEEP_MASK_TO_REG(val);
w83627hf_write_value(data, W83781D_REG_BEEP_INTS1,
data->beep_mask & 0xff);
w83627hf_write_value(data, W83781D_REG_BEEP_INTS3,
((data->beep_mask) >> 16) & 0xff);
w83627hf_write_value(data, W83781D_REG_BEEP_INTS2,
(data->beep_mask >> 8) & 0xff);
mutex_unlock(&data->update_lock);
return count;
}
static DEVICE_ATTR(beep_mask, S_IRUGO | S_IWUSR,
show_beep_mask, store_beep_mask);
static ssize_t
show_beep(struct device *dev, struct device_attribute *attr, char *buf)
{
struct w83627hf_data *data = w83627hf_update_device(dev);
int bitnr = to_sensor_dev_attr(attr)->index;
return sprintf(buf, "%u\n", (data->beep_mask >> bitnr) & 1);
}
static ssize_t
store_beep(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct w83627hf_data *data = dev_get_drvdata(dev);
int bitnr = to_sensor_dev_attr(attr)->index;
unsigned long bit;
u8 reg;
bit = simple_strtoul(buf, NULL, 10);
if (bit & ~1)
return -EINVAL;
mutex_lock(&data->update_lock);
if (bit)
data->beep_mask |= (1 << bitnr);
else
data->beep_mask &= ~(1 << bitnr);
if (bitnr < 8) {
reg = w83627hf_read_value(data, W83781D_REG_BEEP_INTS1);
if (bit)
reg |= (1 << bitnr);
else
reg &= ~(1 << bitnr);
w83627hf_write_value(data, W83781D_REG_BEEP_INTS1, reg);
} else if (bitnr < 16) {
reg = w83627hf_read_value(data, W83781D_REG_BEEP_INTS2);
if (bit)
reg |= (1 << (bitnr - 8));
else
reg &= ~(1 << (bitnr - 8));
w83627hf_write_value(data, W83781D_REG_BEEP_INTS2, reg);
} else {
reg = w83627hf_read_value(data, W83781D_REG_BEEP_INTS3);
if (bit)
reg |= (1 << (bitnr - 16));
else
reg &= ~(1 << (bitnr - 16));
w83627hf_write_value(data, W83781D_REG_BEEP_INTS3, reg);
}
mutex_unlock(&data->update_lock);
return count;
}
static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO | S_IWUSR,
show_beep, store_beep, 0);
static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO | S_IWUSR,
show_beep, store_beep, 1);
static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO | S_IWUSR,
show_beep, store_beep, 2);
static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO | S_IWUSR,
show_beep, store_beep, 3);
static SENSOR_DEVICE_ATTR(in4_beep, S_IRUGO | S_IWUSR,
show_beep, store_beep, 8);
static SENSOR_DEVICE_ATTR(in5_beep, S_IRUGO | S_IWUSR,
show_beep, store_beep, 9);
static SENSOR_DEVICE_ATTR(in6_beep, S_IRUGO | S_IWUSR,
show_beep, store_beep, 10);
static SENSOR_DEVICE_ATTR(in7_beep, S_IRUGO | S_IWUSR,
show_beep, store_beep, 16);
static SENSOR_DEVICE_ATTR(in8_beep, S_IRUGO | S_IWUSR,
show_beep, store_beep, 17);
static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO | S_IWUSR,
show_beep, store_beep, 6);
static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO | S_IWUSR,
show_beep, store_beep, 7);
static SENSOR_DEVICE_ATTR(fan3_beep, S_IRUGO | S_IWUSR,
show_beep, store_beep, 11);
static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO | S_IWUSR,
show_beep, store_beep, 4);
static SENSOR_DEVICE_ATTR(temp2_beep, S_IRUGO | S_IWUSR,
show_beep, store_beep, 5);
static SENSOR_DEVICE_ATTR(temp3_beep, S_IRUGO | S_IWUSR,
show_beep, store_beep, 13);
static SENSOR_DEVICE_ATTR(beep_enable, S_IRUGO | S_IWUSR,
show_beep, store_beep, 15);
static ssize_t
show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf)
{
int nr = to_sensor_dev_attr(devattr)->index;
struct w83627hf_data *data = w83627hf_update_device(dev);
return sprintf(buf, "%ld\n",
(long) DIV_FROM_REG(data->fan_div[nr]));
}
/* Note: we save and restore the fan minimum here, because its value is
determined in part by the fan divisor. This follows the principle of
least surprise; the user doesn't expect the fan minimum to change just
because the divisor changed. */
static ssize_t
store_fan_div(struct device *dev, struct device_attribute *devattr,
const char *buf, size_t count)
{
int nr = to_sensor_dev_attr(devattr)->index;
struct w83627hf_data *data = dev_get_drvdata(dev);
unsigned long min;
u8 reg;
unsigned long val = simple_strtoul(buf, NULL, 10);
mutex_lock(&data->update_lock);
/* Save fan_min */
min = FAN_FROM_REG(data->fan_min[nr],
DIV_FROM_REG(data->fan_div[nr]));
data->fan_div[nr] = DIV_TO_REG(val);
reg = (w83627hf_read_value(data, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV)
& (nr==0 ? 0xcf : 0x3f))
| ((data->fan_div[nr] & 0x03) << (nr==0 ? 4 : 6));
w83627hf_write_value(data, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV, reg);
reg = (w83627hf_read_value(data, W83781D_REG_VBAT)
& ~(1 << (5 + nr)))
| ((data->fan_div[nr] & 0x04) << (3 + nr));
w83627hf_write_value(data, W83781D_REG_VBAT, reg);
/* Restore fan_min */
data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
w83627hf_write_value(data, W83627HF_REG_FAN_MIN(nr), data->fan_min[nr]);
mutex_unlock(&data->update_lock);
return count;
}
static SENSOR_DEVICE_ATTR(fan1_div, S_IRUGO|S_IWUSR,
show_fan_div, store_fan_div, 0);
static SENSOR_DEVICE_ATTR(fan2_div, S_IRUGO|S_IWUSR,
show_fan_div, store_fan_div, 1);
static SENSOR_DEVICE_ATTR(fan3_div, S_IRUGO|S_IWUSR,
show_fan_div, store_fan_div, 2);
static ssize_t
show_pwm(struct device *dev, struct device_attribute *devattr, char *buf)
{
int nr = to_sensor_dev_attr(devattr)->index;
struct w83627hf_data *data = w83627hf_update_device(dev);
return sprintf(buf, "%ld\n", (long) data->pwm[nr]);
}
static ssize_t
store_pwm(struct device *dev, struct device_attribute *devattr,
const char *buf, size_t count)
{
int nr = to_sensor_dev_attr(devattr)->index;
struct w83627hf_data *data = dev_get_drvdata(dev);
u32 val = simple_strtoul(buf, NULL, 10);
mutex_lock(&data->update_lock);
if (data->type == w83627thf) {
/* bits 0-3 are reserved in 627THF */
data->pwm[nr] = PWM_TO_REG(val) & 0xf0;
w83627hf_write_value(data,
W836X7HF_REG_PWM(data->type, nr),
data->pwm[nr] |
(w83627hf_read_value(data,
W836X7HF_REG_PWM(data->type, nr)) & 0x0f));
} else {
data->pwm[nr] = PWM_TO_REG(val);
w83627hf_write_value(data,
W836X7HF_REG_PWM(data->type, nr),
data->pwm[nr]);
}
mutex_unlock(&data->update_lock);
return count;
}
static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO|S_IWUSR, show_pwm, store_pwm, 0);
static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO|S_IWUSR, show_pwm, store_pwm, 1);
static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO|S_IWUSR, show_pwm, store_pwm, 2);
static ssize_t
show_pwm_enable(struct device *dev, struct device_attribute *devattr, char *buf)
{
int nr = to_sensor_dev_attr(devattr)->index;
struct w83627hf_data *data = w83627hf_update_device(dev);
return sprintf(buf, "%d\n", data->pwm_enable[nr]);
}
static ssize_t
store_pwm_enable(struct device *dev, struct device_attribute *devattr,
const char *buf, size_t count)
{
int nr = to_sensor_dev_attr(devattr)->index;
struct w83627hf_data *data = dev_get_drvdata(dev);
unsigned long val = simple_strtoul(buf, NULL, 10);
u8 reg;
if (!val || (val > 3)) /* modes 1, 2 and 3 are supported */
return -EINVAL;
mutex_lock(&data->update_lock);
data->pwm_enable[nr] = val;
reg = w83627hf_read_value(data, W83627THF_REG_PWM_ENABLE[nr]);
reg &= ~(0x03 << W83627THF_PWM_ENABLE_SHIFT[nr]);
reg |= (val - 1) << W83627THF_PWM_ENABLE_SHIFT[nr];
w83627hf_write_value(data, W83627THF_REG_PWM_ENABLE[nr], reg);
mutex_unlock(&data->update_lock);
return count;
}
static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO|S_IWUSR, show_pwm_enable,
store_pwm_enable, 0);
static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO|S_IWUSR, show_pwm_enable,
store_pwm_enable, 1);
static SENSOR_DEVICE_ATTR(pwm3_enable, S_IRUGO|S_IWUSR, show_pwm_enable,
store_pwm_enable, 2);
static ssize_t
show_pwm_freq(struct device *dev, struct device_attribute *devattr, char *buf)
{
int nr = to_sensor_dev_attr(devattr)->index;
struct w83627hf_data *data = w83627hf_update_device(dev);
if (data->type == w83627hf)
return sprintf(buf, "%ld\n",
pwm_freq_from_reg_627hf(data->pwm_freq[nr]));
else
return sprintf(buf, "%ld\n",
pwm_freq_from_reg(data->pwm_freq[nr]));
}
static ssize_t
store_pwm_freq(struct device *dev, struct device_attribute *devattr,
const char *buf, size_t count)
{
int nr = to_sensor_dev_attr(devattr)->index;
struct w83627hf_data *data = dev_get_drvdata(dev);
static const u8 mask[]={0xF8, 0x8F};
u32 val;
val = simple_strtoul(buf, NULL, 10);
mutex_lock(&data->update_lock);
if (data->type == w83627hf) {
data->pwm_freq[nr] = pwm_freq_to_reg_627hf(val);
w83627hf_write_value(data, W83627HF_REG_PWM_FREQ,
(data->pwm_freq[nr] << (nr*4)) |
(w83627hf_read_value(data,
W83627HF_REG_PWM_FREQ) & mask[nr]));
} else {
data->pwm_freq[nr] = pwm_freq_to_reg(val);
w83627hf_write_value(data, W83637HF_REG_PWM_FREQ[nr],
data->pwm_freq[nr]);
}
mutex_unlock(&data->update_lock);
return count;
}
static SENSOR_DEVICE_ATTR(pwm1_freq, S_IRUGO|S_IWUSR,
show_pwm_freq, store_pwm_freq, 0);
static SENSOR_DEVICE_ATTR(pwm2_freq, S_IRUGO|S_IWUSR,
show_pwm_freq, store_pwm_freq, 1);
static SENSOR_DEVICE_ATTR(pwm3_freq, S_IRUGO|S_IWUSR,
show_pwm_freq, store_pwm_freq, 2);
static ssize_t
show_temp_type(struct device *dev, struct device_attribute *devattr,
char *buf)
{
int nr = to_sensor_dev_attr(devattr)->index;
struct w83627hf_data *data = w83627hf_update_device(dev);
return sprintf(buf, "%ld\n", (long) data->sens[nr]);
}
static ssize_t
store_temp_type(struct device *dev, struct device_attribute *devattr,
const char *buf, size_t count)
{
int nr = to_sensor_dev_attr(devattr)->index;
struct w83627hf_data *data = dev_get_drvdata(dev);
u32 val, tmp;
val = simple_strtoul(buf, NULL, 10);
mutex_lock(&data->update_lock);
switch (val) {
case 1: /* PII/Celeron diode */
tmp = w83627hf_read_value(data, W83781D_REG_SCFG1);
w83627hf_write_value(data, W83781D_REG_SCFG1,
tmp | BIT_SCFG1[nr]);
tmp = w83627hf_read_value(data, W83781D_REG_SCFG2);
w83627hf_write_value(data, W83781D_REG_SCFG2,
tmp | BIT_SCFG2[nr]);
data->sens[nr] = val;
break;
case 2: /* 3904 */
tmp = w83627hf_read_value(data, W83781D_REG_SCFG1);
w83627hf_write_value(data, W83781D_REG_SCFG1,
tmp | BIT_SCFG1[nr]);
tmp = w83627hf_read_value(data, W83781D_REG_SCFG2);
w83627hf_write_value(data, W83781D_REG_SCFG2,
tmp & ~BIT_SCFG2[nr]);
data->sens[nr] = val;
break;
case W83781D_DEFAULT_BETA:
dev_warn(dev, "Sensor type %d is deprecated, please use 4 "
"instead\n", W83781D_DEFAULT_BETA);
/* fall through */
case 4: /* thermistor */
tmp = w83627hf_read_value(data, W83781D_REG_SCFG1);
w83627hf_write_value(data, W83781D_REG_SCFG1,
tmp & ~BIT_SCFG1[nr]);
data->sens[nr] = val;
break;
default:
dev_err(dev,
"Invalid sensor type %ld; must be 1, 2, or 4\n",
(long) val);
break;
}
mutex_unlock(&data->update_lock);
return count;
}
#define sysfs_temp_type(offset) \
static SENSOR_DEVICE_ATTR(temp##offset##_type, S_IRUGO | S_IWUSR, \
show_temp_type, store_temp_type, offset - 1);
sysfs_temp_type(1);
sysfs_temp_type(2);
sysfs_temp_type(3);
static ssize_t
show_name(struct device *dev, struct device_attribute *devattr, char *buf)
{
struct w83627hf_data *data = dev_get_drvdata(dev);
return sprintf(buf, "%s\n", data->name);
}
static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
static int __init w83627hf_find(int sioaddr, unsigned short *addr,
struct w83627hf_sio_data *sio_data)
{
int err = -ENODEV;
u16 val;
static const __initdata char *names[] = {
"W83627HF",
"W83627THF",
"W83697HF",
"W83637HF",
"W83687THF",
};
sio_data->sioaddr = sioaddr;
superio_enter(sio_data);
val = force_id ? force_id : superio_inb(sio_data, DEVID);
switch (val) {
case W627_DEVID:
sio_data->type = w83627hf;
break;
case W627THF_DEVID:
sio_data->type = w83627thf;
break;
case W697_DEVID:
sio_data->type = w83697hf;
break;
case W637_DEVID:
sio_data->type = w83637hf;
break;
case W687THF_DEVID:
sio_data->type = w83687thf;
break;
case 0xff: /* No device at all */
goto exit;
default:
pr_debug(DRVNAME ": Unsupported chip (DEVID=0x%02x)\n", val);
goto exit;
}
superio_select(sio_data, W83627HF_LD_HWM);
val = (superio_inb(sio_data, WINB_BASE_REG) << 8) |
superio_inb(sio_data, WINB_BASE_REG + 1);
*addr = val & WINB_ALIGNMENT;
if (*addr == 0) {
printk(KERN_WARNING DRVNAME ": Base address not set, "
"skipping\n");
goto exit;
}
val = superio_inb(sio_data, WINB_ACT_REG);
if (!(val & 0x01)) {
printk(KERN_WARNING DRVNAME ": Enabling HWM logical device\n");
superio_outb(sio_data, WINB_ACT_REG, val | 0x01);
}
err = 0;
pr_info(DRVNAME ": Found %s chip at %#x\n",
names[sio_data->type], *addr);
exit:
superio_exit(sio_data);
return err;
}
#define VIN_UNIT_ATTRS(_X_) \
&sensor_dev_attr_in##_X_##_input.dev_attr.attr, \
&sensor_dev_attr_in##_X_##_min.dev_attr.attr, \
&sensor_dev_attr_in##_X_##_max.dev_attr.attr, \
&sensor_dev_attr_in##_X_##_alarm.dev_attr.attr, \
&sensor_dev_attr_in##_X_##_beep.dev_attr.attr
#define FAN_UNIT_ATTRS(_X_) \
&sensor_dev_attr_fan##_X_##_input.dev_attr.attr, \
&sensor_dev_attr_fan##_X_##_min.dev_attr.attr, \
&sensor_dev_attr_fan##_X_##_div.dev_attr.attr, \
&sensor_dev_attr_fan##_X_##_alarm.dev_attr.attr, \
&sensor_dev_attr_fan##_X_##_beep.dev_attr.attr
#define TEMP_UNIT_ATTRS(_X_) \
&sensor_dev_attr_temp##_X_##_input.dev_attr.attr, \
&sensor_dev_attr_temp##_X_##_max.dev_attr.attr, \
&sensor_dev_attr_temp##_X_##_max_hyst.dev_attr.attr, \
&sensor_dev_attr_temp##_X_##_type.dev_attr.attr, \
&sensor_dev_attr_temp##_X_##_alarm.dev_attr.attr, \
&sensor_dev_attr_temp##_X_##_beep.dev_attr.attr
static struct attribute *w83627hf_attributes[] = {
&dev_attr_in0_input.attr,
&dev_attr_in0_min.attr,
&dev_attr_in0_max.attr,
&sensor_dev_attr_in0_alarm.dev_attr.attr,
&sensor_dev_attr_in0_beep.dev_attr.attr,
VIN_UNIT_ATTRS(2),
VIN_UNIT_ATTRS(3),
VIN_UNIT_ATTRS(4),
VIN_UNIT_ATTRS(7),
VIN_UNIT_ATTRS(8),
FAN_UNIT_ATTRS(1),
FAN_UNIT_ATTRS(2),
TEMP_UNIT_ATTRS(1),
TEMP_UNIT_ATTRS(2),
&dev_attr_alarms.attr,
&sensor_dev_attr_beep_enable.dev_attr.attr,
&dev_attr_beep_mask.attr,
&sensor_dev_attr_pwm1.dev_attr.attr,
&sensor_dev_attr_pwm2.dev_attr.attr,
&dev_attr_name.attr,
NULL
};
static const struct attribute_group w83627hf_group = {
.attrs = w83627hf_attributes,
};
static struct attribute *w83627hf_attributes_opt[] = {
VIN_UNIT_ATTRS(1),
VIN_UNIT_ATTRS(5),
VIN_UNIT_ATTRS(6),
FAN_UNIT_ATTRS(3),
TEMP_UNIT_ATTRS(3),
&sensor_dev_attr_pwm3.dev_attr.attr,
&sensor_dev_attr_pwm1_freq.dev_attr.attr,
&sensor_dev_attr_pwm2_freq.dev_attr.attr,
&sensor_dev_attr_pwm3_freq.dev_attr.attr,
&sensor_dev_attr_pwm1_enable.dev_attr.attr,
&sensor_dev_attr_pwm2_enable.dev_attr.attr,
&sensor_dev_attr_pwm3_enable.dev_attr.attr,
NULL
};
static const struct attribute_group w83627hf_group_opt = {
.attrs = w83627hf_attributes_opt,
};
static int __devinit w83627hf_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct w83627hf_sio_data *sio_data = dev->platform_data;
struct w83627hf_data *data;
struct resource *res;
int err, i;
static const char *names[] = {
"w83627hf",
"w83627thf",
"w83697hf",
"w83637hf",
"w83687thf",
};
res = platform_get_resource(pdev, IORESOURCE_IO, 0);
if (!request_region(res->start, WINB_REGION_SIZE, DRVNAME)) {
dev_err(dev, "Failed to request region 0x%lx-0x%lx\n",
(unsigned long)res->start,
(unsigned long)(res->start + WINB_REGION_SIZE - 1));
err = -EBUSY;
goto ERROR0;
}
if (!(data = kzalloc(sizeof(struct w83627hf_data), GFP_KERNEL))) {
err = -ENOMEM;
goto ERROR1;
}
data->addr = res->start;
data->type = sio_data->type;
data->name = names[sio_data->type];
mutex_init(&data->lock);
mutex_init(&data->update_lock);
platform_set_drvdata(pdev, data);
/* Initialize the chip */
w83627hf_init_device(pdev);
/* A few vars need to be filled upon startup */
for (i = 0; i <= 2; i++)
data->fan_min[i] = w83627hf_read_value(
data, W83627HF_REG_FAN_MIN(i));
w83627hf_update_fan_div(data);
/* Register common device attributes */
if ((err = sysfs_create_group(&dev->kobj, &w83627hf_group)))
goto ERROR3;
/* Register chip-specific device attributes */
if (data->type == w83627hf || data->type == w83697hf)
if ((err = device_create_file(dev,
&sensor_dev_attr_in5_input.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_in5_min.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_in5_max.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_in5_alarm.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_in5_beep.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_in6_input.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_in6_min.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_in6_max.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_in6_alarm.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_in6_beep.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_pwm1_freq.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_pwm2_freq.dev_attr)))
goto ERROR4;
if (data->type != w83697hf)
if ((err = device_create_file(dev,
&sensor_dev_attr_in1_input.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_in1_min.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_in1_max.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_in1_alarm.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_in1_beep.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_fan3_input.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_fan3_min.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_fan3_div.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_fan3_alarm.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_fan3_beep.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_temp3_input.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_temp3_max.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_temp3_max_hyst.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_temp3_alarm.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_temp3_beep.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_temp3_type.dev_attr)))
goto ERROR4;
if (data->type != w83697hf && data->vid != 0xff) {
/* Convert VID to voltage based on VRM */
data->vrm = vid_which_vrm();
if ((err = device_create_file(dev, &dev_attr_cpu0_vid))
|| (err = device_create_file(dev, &dev_attr_vrm)))
goto ERROR4;
}
if (data->type == w83627thf || data->type == w83637hf
|| data->type == w83687thf)
if ((err = device_create_file(dev,
&sensor_dev_attr_pwm3.dev_attr)))
goto ERROR4;
if (data->type == w83637hf || data->type == w83687thf)
if ((err = device_create_file(dev,
&sensor_dev_attr_pwm1_freq.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_pwm2_freq.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_pwm3_freq.dev_attr)))
goto ERROR4;
if (data->type != w83627hf)
if ((err = device_create_file(dev,
&sensor_dev_attr_pwm1_enable.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_pwm2_enable.dev_attr)))
goto ERROR4;
if (data->type == w83627thf || data->type == w83637hf
|| data->type == w83687thf)
if ((err = device_create_file(dev,
&sensor_dev_attr_pwm3_enable.dev_attr)))
goto ERROR4;
data->hwmon_dev = hwmon_device_register(dev);
if (IS_ERR(data->hwmon_dev)) {
err = PTR_ERR(data->hwmon_dev);
goto ERROR4;
}
return 0;
ERROR4:
sysfs_remove_group(&dev->kobj, &w83627hf_group);
sysfs_remove_group(&dev->kobj, &w83627hf_group_opt);
ERROR3:
platform_set_drvdata(pdev, NULL);
kfree(data);
ERROR1:
release_region(res->start, WINB_REGION_SIZE);
ERROR0:
return err;
}
static int __devexit w83627hf_remove(struct platform_device *pdev)
{
struct w83627hf_data *data = platform_get_drvdata(pdev);
struct resource *res;
hwmon_device_unregister(data->hwmon_dev);
sysfs_remove_group(&pdev->dev.kobj, &w83627hf_group);
sysfs_remove_group(&pdev->dev.kobj, &w83627hf_group_opt);
platform_set_drvdata(pdev, NULL);
kfree(data);
res = platform_get_resource(pdev, IORESOURCE_IO, 0);
release_region(res->start, WINB_REGION_SIZE);
return 0;
}
/* Registers 0x50-0x5f are banked */
static inline void w83627hf_set_bank(struct w83627hf_data *data, u16 reg)
{
if ((reg & 0x00f0) == 0x50) {
outb_p(W83781D_REG_BANK, data->addr + W83781D_ADDR_REG_OFFSET);
outb_p(reg >> 8, data->addr + W83781D_DATA_REG_OFFSET);
}
}
/* Not strictly necessary, but play it safe for now */
static inline void w83627hf_reset_bank(struct w83627hf_data *data, u16 reg)
{
if (reg & 0xff00) {
outb_p(W83781D_REG_BANK, data->addr + W83781D_ADDR_REG_OFFSET);
outb_p(0, data->addr + W83781D_DATA_REG_OFFSET);
}
}
static int w83627hf_read_value(struct w83627hf_data *data, u16 reg)
{
int res, word_sized;
mutex_lock(&data->lock);
word_sized = (((reg & 0xff00) == 0x100)
|| ((reg & 0xff00) == 0x200))
&& (((reg & 0x00ff) == 0x50)
|| ((reg & 0x00ff) == 0x53)
|| ((reg & 0x00ff) == 0x55));
w83627hf_set_bank(data, reg);
outb_p(reg & 0xff, data->addr + W83781D_ADDR_REG_OFFSET);
res = inb_p(data->addr + W83781D_DATA_REG_OFFSET);
if (word_sized) {
outb_p((reg & 0xff) + 1,
data->addr + W83781D_ADDR_REG_OFFSET);
res =
(res << 8) + inb_p(data->addr +
W83781D_DATA_REG_OFFSET);
}
w83627hf_reset_bank(data, reg);
mutex_unlock(&data->lock);
return res;
}
static int __devinit w83627thf_read_gpio5(struct platform_device *pdev)
{
struct w83627hf_sio_data *sio_data = pdev->dev.platform_data;
int res = 0xff, sel;
superio_enter(sio_data);
superio_select(sio_data, W83627HF_LD_GPIO5);
/* Make sure these GPIO pins are enabled */
if (!(superio_inb(sio_data, W83627THF_GPIO5_EN) & (1<<3))) {
dev_dbg(&pdev->dev, "GPIO5 disabled, no VID function\n");
goto exit;
}
/* Make sure the pins are configured for input
There must be at least five (VRM 9), and possibly 6 (VRM 10) */
sel = superio_inb(sio_data, W83627THF_GPIO5_IOSR) & 0x3f;
if ((sel & 0x1f) != 0x1f) {
dev_dbg(&pdev->dev, "GPIO5 not configured for VID "
"function\n");
goto exit;
}
dev_info(&pdev->dev, "Reading VID from GPIO5\n");
res = superio_inb(sio_data, W83627THF_GPIO5_DR) & sel;
exit:
superio_exit(sio_data);
return res;
}
static int __devinit w83687thf_read_vid(struct platform_device *pdev)
{
struct w83627hf_sio_data *sio_data = pdev->dev.platform_data;
int res = 0xff;
superio_enter(sio_data);
superio_select(sio_data, W83627HF_LD_HWM);
/* Make sure these GPIO pins are enabled */
if (!(superio_inb(sio_data, W83687THF_VID_EN) & (1 << 2))) {
dev_dbg(&pdev->dev, "VID disabled, no VID function\n");
goto exit;
}
/* Make sure the pins are configured for input */
if (!(superio_inb(sio_data, W83687THF_VID_CFG) & (1 << 4))) {
dev_dbg(&pdev->dev, "VID configured as output, "
"no VID function\n");
goto exit;
}
res = superio_inb(sio_data, W83687THF_VID_DATA) & 0x3f;
exit:
superio_exit(sio_data);
return res;
}
static int w83627hf_write_value(struct w83627hf_data *data, u16 reg, u16 value)
{
int word_sized;
mutex_lock(&data->lock);
word_sized = (((reg & 0xff00) == 0x100)
|| ((reg & 0xff00) == 0x200))
&& (((reg & 0x00ff) == 0x53)
|| ((reg & 0x00ff) == 0x55));
w83627hf_set_bank(data, reg);
outb_p(reg & 0xff, data->addr + W83781D_ADDR_REG_OFFSET);
if (word_sized) {
outb_p(value >> 8,
data->addr + W83781D_DATA_REG_OFFSET);
outb_p((reg & 0xff) + 1,
data->addr + W83781D_ADDR_REG_OFFSET);
}
outb_p(value & 0xff,
data->addr + W83781D_DATA_REG_OFFSET);
w83627hf_reset_bank(data, reg);
mutex_unlock(&data->lock);
return 0;
}
static void __devinit w83627hf_init_device(struct platform_device *pdev)
{
struct w83627hf_data *data = platform_get_drvdata(pdev);
int i;
enum chips type = data->type;
u8 tmp;
/* Minimize conflicts with other winbond i2c-only clients... */
/* disable i2c subclients... how to disable main i2c client?? */
/* force i2c address to relatively uncommon address */
w83627hf_write_value(data, W83781D_REG_I2C_SUBADDR, 0x89);
w83627hf_write_value(data, W83781D_REG_I2C_ADDR, force_i2c);
/* Read VID only once */
if (type == w83627hf || type == w83637hf) {
int lo = w83627hf_read_value(data, W83781D_REG_VID_FANDIV);
int hi = w83627hf_read_value(data, W83781D_REG_CHIPID);
data->vid = (lo & 0x0f) | ((hi & 0x01) << 4);
} else if (type == w83627thf) {
data->vid = w83627thf_read_gpio5(pdev);
} else if (type == w83687thf) {
data->vid = w83687thf_read_vid(pdev);
}
/* Read VRM & OVT Config only once */
if (type == w83627thf || type == w83637hf || type == w83687thf) {
data->vrm_ovt =
w83627hf_read_value(data, W83627THF_REG_VRM_OVT_CFG);
}
tmp = w83627hf_read_value(data, W83781D_REG_SCFG1);
for (i = 1; i <= 3; i++) {
if (!(tmp & BIT_SCFG1[i - 1])) {
data->sens[i - 1] = 4;
} else {
if (w83627hf_read_value
(data,
W83781D_REG_SCFG2) & BIT_SCFG2[i - 1])
data->sens[i - 1] = 1;
else
data->sens[i - 1] = 2;
}
if ((type == w83697hf) && (i == 2))
break;
}
if(init) {
/* Enable temp2 */
tmp = w83627hf_read_value(data, W83627HF_REG_TEMP2_CONFIG);
if (tmp & 0x01) {
dev_warn(&pdev->dev, "Enabling temp2, readings "
"might not make sense\n");
w83627hf_write_value(data, W83627HF_REG_TEMP2_CONFIG,
tmp & 0xfe);
}
/* Enable temp3 */
if (type != w83697hf) {
tmp = w83627hf_read_value(data,
W83627HF_REG_TEMP3_CONFIG);
if (tmp & 0x01) {
dev_warn(&pdev->dev, "Enabling temp3, "
"readings might not make sense\n");
w83627hf_write_value(data,
W83627HF_REG_TEMP3_CONFIG, tmp & 0xfe);
}
}
}
/* Start monitoring */
w83627hf_write_value(data, W83781D_REG_CONFIG,
(w83627hf_read_value(data,
W83781D_REG_CONFIG) & 0xf7)
| 0x01);
/* Enable VBAT monitoring if needed */
tmp = w83627hf_read_value(data, W83781D_REG_VBAT);
if (!(tmp & 0x01))
w83627hf_write_value(data, W83781D_REG_VBAT, tmp | 0x01);
}
static void w83627hf_update_fan_div(struct w83627hf_data *data)
{
int reg;
reg = w83627hf_read_value(data, W83781D_REG_VID_FANDIV);
data->fan_div[0] = (reg >> 4) & 0x03;
data->fan_div[1] = (reg >> 6) & 0x03;
if (data->type != w83697hf) {
data->fan_div[2] = (w83627hf_read_value(data,
W83781D_REG_PIN) >> 6) & 0x03;
}
reg = w83627hf_read_value(data, W83781D_REG_VBAT);
data->fan_div[0] |= (reg >> 3) & 0x04;
data->fan_div[1] |= (reg >> 4) & 0x04;
if (data->type != w83697hf)
data->fan_div[2] |= (reg >> 5) & 0x04;
}
static struct w83627hf_data *w83627hf_update_device(struct device *dev)
{
struct w83627hf_data *data = dev_get_drvdata(dev);
int i, num_temps = (data->type == w83697hf) ? 2 : 3;
int num_pwms = (data->type == w83697hf) ? 2 : 3;
mutex_lock(&data->update_lock);
if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
|| !data->valid) {
for (i = 0; i <= 8; i++) {
/* skip missing sensors */
if (((data->type == w83697hf) && (i == 1)) ||
((data->type != w83627hf && data->type != w83697hf)
&& (i == 5 || i == 6)))
continue;
data->in[i] =
w83627hf_read_value(data, W83781D_REG_IN(i));
data->in_min[i] =
w83627hf_read_value(data,
W83781D_REG_IN_MIN(i));
data->in_max[i] =
w83627hf_read_value(data,
W83781D_REG_IN_MAX(i));
}
for (i = 0; i <= 2; i++) {
data->fan[i] =
w83627hf_read_value(data, W83627HF_REG_FAN(i));
data->fan_min[i] =
w83627hf_read_value(data,
W83627HF_REG_FAN_MIN(i));
}
for (i = 0; i <= 2; i++) {
u8 tmp = w83627hf_read_value(data,
W836X7HF_REG_PWM(data->type, i));
/* bits 0-3 are reserved in 627THF */
if (data->type == w83627thf)
tmp &= 0xf0;
data->pwm[i] = tmp;
if (i == 1 &&
(data->type == w83627hf || data->type == w83697hf))
break;
}
if (data->type == w83627hf) {
u8 tmp = w83627hf_read_value(data,
W83627HF_REG_PWM_FREQ);
data->pwm_freq[0] = tmp & 0x07;
data->pwm_freq[1] = (tmp >> 4) & 0x07;
} else if (data->type != w83627thf) {
for (i = 1; i <= 3; i++) {
data->pwm_freq[i - 1] =
w83627hf_read_value(data,
W83637HF_REG_PWM_FREQ[i - 1]);
if (i == 2 && (data->type == w83697hf))
break;
}
}
if (data->type != w83627hf) {
for (i = 0; i < num_pwms; i++) {
u8 tmp = w83627hf_read_value(data,
W83627THF_REG_PWM_ENABLE[i]);
data->pwm_enable[i] =
((tmp >> W83627THF_PWM_ENABLE_SHIFT[i])
& 0x03) + 1;
}
}
for (i = 0; i < num_temps; i++) {
data->temp[i] = w83627hf_read_value(
data, w83627hf_reg_temp[i]);
data->temp_max[i] = w83627hf_read_value(
data, w83627hf_reg_temp_over[i]);
data->temp_max_hyst[i] = w83627hf_read_value(
data, w83627hf_reg_temp_hyst[i]);
}
w83627hf_update_fan_div(data);
data->alarms =
w83627hf_read_value(data, W83781D_REG_ALARM1) |
(w83627hf_read_value(data, W83781D_REG_ALARM2) << 8) |
(w83627hf_read_value(data, W83781D_REG_ALARM3) << 16);
i = w83627hf_read_value(data, W83781D_REG_BEEP_INTS2);
data->beep_mask = (i << 8) |
w83627hf_read_value(data, W83781D_REG_BEEP_INTS1) |
w83627hf_read_value(data, W83781D_REG_BEEP_INTS3) << 16;
data->last_updated = jiffies;
data->valid = 1;
}
mutex_unlock(&data->update_lock);
return data;
}
static int __init w83627hf_device_add(unsigned short address,
const struct w83627hf_sio_data *sio_data)
{
struct resource res = {
.start = address + WINB_REGION_OFFSET,
.end = address + WINB_REGION_OFFSET + WINB_REGION_SIZE - 1,
.name = DRVNAME,
.flags = IORESOURCE_IO,
};
int err;
err = acpi_check_resource_conflict(&res);
if (err)
goto exit;
pdev = platform_device_alloc(DRVNAME, address);
if (!pdev) {
err = -ENOMEM;
printk(KERN_ERR DRVNAME ": Device allocation failed\n");
goto exit;
}
err = platform_device_add_resources(pdev, &res, 1);
if (err) {
printk(KERN_ERR DRVNAME ": Device resource addition failed "
"(%d)\n", err);
goto exit_device_put;
}
err = platform_device_add_data(pdev, sio_data,
sizeof(struct w83627hf_sio_data));
if (err) {
printk(KERN_ERR DRVNAME ": Platform data allocation failed\n");
goto exit_device_put;
}
err = platform_device_add(pdev);
if (err) {
printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n",
err);
goto exit_device_put;
}
return 0;
exit_device_put:
platform_device_put(pdev);
exit:
return err;
}
static int __init sensors_w83627hf_init(void)
{
int err;
unsigned short address;
struct w83627hf_sio_data sio_data;
if (w83627hf_find(0x2e, &address, &sio_data)
&& w83627hf_find(0x4e, &address, &sio_data))
return -ENODEV;
err = platform_driver_register(&w83627hf_driver);
if (err)
goto exit;
/* Sets global pdev as a side effect */
err = w83627hf_device_add(address, &sio_data);
if (err)
goto exit_driver;
return 0;
exit_driver:
platform_driver_unregister(&w83627hf_driver);
exit:
return err;
}
static void __exit sensors_w83627hf_exit(void)
{
platform_device_unregister(pdev);
platform_driver_unregister(&w83627hf_driver);
}
MODULE_AUTHOR("Frodo Looijaard <frodol@dds.nl>, "
"Philip Edelbrock <phil@netroedge.com>, "
"and Mark Studebaker <mdsxyz123@yahoo.com>");
MODULE_DESCRIPTION("W83627HF driver");
MODULE_LICENSE("GPL");
module_init(sensors_w83627hf_init);
module_exit(sensors_w83627hf_exit);
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