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kernel_optimize_test/drivers/hwmon/w83627hf.c
Yuan Mu 2723ab91cb [PATCH] hwmon: Fix missing boundary check when setting W83627THF in0 limits 
Add SENSORS_LIMIT in store VCore limit functions. This fixes a potential
u8 overflow on out-of-range user input.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-23 23:04:26 -08:00

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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>
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)
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/i2c.h>
#include <linux/i2c-isa.h>
#include <linux/hwmon.h>
#include <linux/hwmon-vid.h>
#include <linux/err.h>
#include <asm/io.h>
#include "lm75.h"
static u16 force_addr;
module_param(force_addr, ushort, 0);
MODULE_PARM_DESC(force_addr,
"Initialize the base address of the sensors");
static u8 force_i2c = 0x1f;
module_param(force_i2c, byte, 0);
MODULE_PARM_DESC(force_i2c,
"Initialize the i2c address of the sensors");
/* The actual ISA address is read from Super-I/O configuration space */
static unsigned short address;
/* Insmod parameters */
enum chips { any_chip, w83627hf, w83627thf, w83697hf, w83637hf };
static int reset;
module_param(reset, bool, 0);
MODULE_PARM_DESC(reset, "Set to one to reset chip on load");
static int init = 1;
module_param(init, bool, 0);
MODULE_PARM_DESC(init, "Set to zero to bypass chip initialization");
/* modified from kernel/include/traps.c */
static int REG; /* The register to read/write */
#define DEV 0x07 /* Register: Logical device select */
static int VAL; /* The value to read/write */
/* 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 */
static inline void
superio_outb(int reg, int val)
{
outb(reg, REG);
outb(val, VAL);
}
static inline int
superio_inb(int reg)
{
outb(reg, REG);
return inb(VAL);
}
static inline void
superio_select(int ld)
{
outb(DEV, REG);
outb(ld, VAL);
}
static inline void
superio_enter(void)
{
outb(0x87, REG);
outb(0x87, REG);
}
static inline void
superio_exit(void)
{
outb(0xAA, REG);
}
#define W627_DEVID 0x52
#define W627THF_DEVID 0x82
#define W697_DEVID 0x60
#define W637_DEVID 0x70
#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 base address */
#define W83781D_ADDR_REG_OFFSET 5
#define W83781D_DATA_REG_OFFSET 6
/* 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))
#define W83781D_REG_FAN_MIN(nr) (0x3a + (nr))
#define W83781D_REG_FAN(nr) (0x27 + (nr))
#define W83781D_REG_TEMP2_CONFIG 0x152
#define W83781D_REG_TEMP3_CONFIG 0x252
#define W83781D_REG_TEMP(nr) ((nr == 3) ? (0x0250) : \
((nr == 2) ? (0x0150) : \
(0x27)))
#define W83781D_REG_TEMP_HYST(nr) ((nr == 3) ? (0x253) : \
((nr == 2) ? (0x153) : \
(0x3A)))
#define W83781D_REG_TEMP_OVER(nr) ((nr == 3) ? (0x255) : \
((nr == 2) ? (0x155) : \
(0x39)))
#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
#define W83627THF_REG_PWM1 0x01 /* 697HF and 637HF too */
#define W83627THF_REG_PWM2 0x03 /* 697HF and 637HF too */
#define W83627THF_REG_PWM3 0x11 /* 637HF too */
#define W83627THF_REG_VRM_OVT_CFG 0x18 /* 637HF 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) - 1] : regpwm[(nr) - 1])
#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(int 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))
#define BEEP_MASK_FROM_REG(val) (val)
#define BEEP_MASK_TO_REG(val) ((val) & 0xffffff)
#define BEEP_ENABLE_TO_REG(val) ((val)?1:0)
#define BEEP_ENABLE_FROM_REG(val) ((val)?1:0)
#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. That
data is pointed to by w83627hf_list[NR]->data. The structure itself is
dynamically allocated, at the same time when a new client is allocated. */
struct w83627hf_data {
struct i2c_client client;
struct class_device *class_dev;
struct semaphore lock;
enum chips type;
struct semaphore update_lock;
char valid; /* !=0 if following fields are valid */
unsigned long last_updated; /* In jiffies */
struct i2c_client *lm75; /* for secondary I2C addresses */
/* pointer to array of 2 subclients */
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 */
u8 temp;
u8 temp_max; /* Register value */
u8 temp_max_hyst; /* Register value */
u16 temp_add[2]; /* Register value */
u16 temp_max_add[2]; /* Register value */
u16 temp_max_hyst_add[2]; /* 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 beep_enable; /* Boolean */
u8 pwm[3]; /* Register value */
u16 sens[3]; /* 782D/783S only.
1 = pentium diode; 2 = 3904 diode;
3000-5000 = thermistor beta.
Default = 3435.
Other Betas unimplemented */
u8 vrm;
u8 vrm_ovt; /* Register value, 627thf & 637hf only */
};
static int w83627hf_detect(struct i2c_adapter *adapter);
static int w83627hf_detach_client(struct i2c_client *client);
static int w83627hf_read_value(struct i2c_client *client, u16 register);
static int w83627hf_write_value(struct i2c_client *client, u16 register,
u16 value);
static struct w83627hf_data *w83627hf_update_device(struct device *dev);
static void w83627hf_init_client(struct i2c_client *client);
static struct i2c_driver w83627hf_driver = {
.owner = THIS_MODULE,
.name = "w83627hf",
.attach_adapter = w83627hf_detect,
.detach_client = w83627hf_detach_client,
};
/* following are the sysfs callback functions */
#define show_in_reg(reg) \
static ssize_t show_##reg (struct device *dev, char *buf, int nr) \
{ \
struct w83627hf_data *data = w83627hf_update_device(dev); \
return sprintf(buf,"%ld\n", (long)IN_FROM_REG(data->reg[nr])); \
}
show_in_reg(in)
show_in_reg(in_min)
show_in_reg(in_max)
#define store_in_reg(REG, reg) \
static ssize_t \
store_in_##reg (struct device *dev, const char *buf, size_t count, int nr) \
{ \
struct i2c_client *client = to_i2c_client(dev); \
struct w83627hf_data *data = i2c_get_clientdata(client); \
u32 val; \
\
val = simple_strtoul(buf, NULL, 10); \
\
down(&data->update_lock); \
data->in_##reg[nr] = IN_TO_REG(val); \
w83627hf_write_value(client, W83781D_REG_IN_##REG(nr), \
data->in_##reg[nr]); \
\
up(&data->update_lock); \
return count; \
}
store_in_reg(MIN, min)
store_in_reg(MAX, max)
#define sysfs_in_offset(offset) \
static ssize_t \
show_regs_in_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
{ \
return show_in(dev, buf, offset); \
} \
static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_regs_in_##offset, NULL);
#define sysfs_in_reg_offset(reg, offset) \
static ssize_t show_regs_in_##reg##offset (struct device *dev, struct device_attribute *attr, char *buf) \
{ \
return show_in_##reg (dev, buf, offset); \
} \
static ssize_t \
store_regs_in_##reg##offset (struct device *dev, struct device_attribute *attr, \
const char *buf, size_t count) \
{ \
return store_in_##reg (dev, buf, count, offset); \
} \
static DEVICE_ATTR(in##offset##_##reg, S_IRUGO| S_IWUSR, \
show_regs_in_##reg##offset, store_regs_in_##reg##offset);
#define sysfs_in_offsets(offset) \
sysfs_in_offset(offset) \
sysfs_in_reg_offset(min, offset) \
sysfs_in_reg_offset(max, offset)
sysfs_in_offsets(1);
sysfs_in_offsets(2);
sysfs_in_offsets(3);
sysfs_in_offsets(4);
sysfs_in_offsets(5);
sysfs_in_offsets(6);
sysfs_in_offsets(7);
sysfs_in_offsets(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))
/* 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 i2c_client *client = to_i2c_client(dev);
struct w83627hf_data *data = i2c_get_clientdata(client);
u32 val;
val = simple_strtoul(buf, NULL, 10);
down(&data->update_lock);
if ((data->vrm_ovt & 0x01) &&
(w83627thf == data->type || w83637hf == 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(client, W83781D_REG_IN_MIN(0), data->in_min[0]);
up(&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 i2c_client *client = to_i2c_client(dev);
struct w83627hf_data *data = i2c_get_clientdata(client);
u32 val;
val = simple_strtoul(buf, NULL, 10);
down(&data->update_lock);
if ((data->vrm_ovt & 0x01) &&
(w83627thf == data->type || w83637hf == 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(client, W83781D_REG_IN_MAX(0), data->in_max[0]);
up(&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);
#define device_create_file_in(client, offset) \
do { \
device_create_file(&client->dev, &dev_attr_in##offset##_input); \
device_create_file(&client->dev, &dev_attr_in##offset##_min); \
device_create_file(&client->dev, &dev_attr_in##offset##_max); \
} while (0)
#define show_fan_reg(reg) \
static ssize_t show_##reg (struct device *dev, char *buf, int nr) \
{ \
struct w83627hf_data *data = w83627hf_update_device(dev); \
return sprintf(buf,"%ld\n", \
FAN_FROM_REG(data->reg[nr-1], \
(long)DIV_FROM_REG(data->fan_div[nr-1]))); \
}
show_fan_reg(fan);
show_fan_reg(fan_min);
static ssize_t
store_fan_min(struct device *dev, const char *buf, size_t count, int nr)
{
struct i2c_client *client = to_i2c_client(dev);
struct w83627hf_data *data = i2c_get_clientdata(client);
u32 val;
val = simple_strtoul(buf, NULL, 10);
down(&data->update_lock);
data->fan_min[nr - 1] =
FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr - 1]));
w83627hf_write_value(client, W83781D_REG_FAN_MIN(nr),
data->fan_min[nr - 1]);
up(&data->update_lock);
return count;
}
#define sysfs_fan_offset(offset) \
static ssize_t show_regs_fan_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
{ \
return show_fan(dev, buf, offset); \
} \
static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_regs_fan_##offset, NULL);
#define sysfs_fan_min_offset(offset) \
static ssize_t show_regs_fan_min##offset (struct device *dev, struct device_attribute *attr, char *buf) \
{ \
return show_fan_min(dev, buf, offset); \
} \
static ssize_t \
store_regs_fan_min##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
{ \
return store_fan_min(dev, buf, count, offset); \
} \
static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
show_regs_fan_min##offset, store_regs_fan_min##offset);
sysfs_fan_offset(1);
sysfs_fan_min_offset(1);
sysfs_fan_offset(2);
sysfs_fan_min_offset(2);
sysfs_fan_offset(3);
sysfs_fan_min_offset(3);
#define device_create_file_fan(client, offset) \
do { \
device_create_file(&client->dev, &dev_attr_fan##offset##_input); \
device_create_file(&client->dev, &dev_attr_fan##offset##_min); \
} while (0)
#define show_temp_reg(reg) \
static ssize_t show_##reg (struct device *dev, char *buf, int nr) \
{ \
struct w83627hf_data *data = w83627hf_update_device(dev); \
if (nr >= 2) { /* TEMP2 and TEMP3 */ \
return sprintf(buf,"%ld\n", \
(long)LM75_TEMP_FROM_REG(data->reg##_add[nr-2])); \
} else { /* TEMP1 */ \
return sprintf(buf,"%ld\n", (long)TEMP_FROM_REG(data->reg)); \
} \
}
show_temp_reg(temp);
show_temp_reg(temp_max);
show_temp_reg(temp_max_hyst);
#define store_temp_reg(REG, reg) \
static ssize_t \
store_temp_##reg (struct device *dev, const char *buf, size_t count, int nr) \
{ \
struct i2c_client *client = to_i2c_client(dev); \
struct w83627hf_data *data = i2c_get_clientdata(client); \
u32 val; \
\
val = simple_strtoul(buf, NULL, 10); \
\
down(&data->update_lock); \
\
if (nr >= 2) { /* TEMP2 and TEMP3 */ \
data->temp_##reg##_add[nr-2] = LM75_TEMP_TO_REG(val); \
w83627hf_write_value(client, W83781D_REG_TEMP_##REG(nr), \
data->temp_##reg##_add[nr-2]); \
} else { /* TEMP1 */ \
data->temp_##reg = TEMP_TO_REG(val); \
w83627hf_write_value(client, W83781D_REG_TEMP_##REG(nr), \
data->temp_##reg); \
} \
\
up(&data->update_lock); \
return count; \
}
store_temp_reg(OVER, max);
store_temp_reg(HYST, max_hyst);
#define sysfs_temp_offset(offset) \
static ssize_t \
show_regs_temp_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
{ \
return show_temp(dev, buf, offset); \
} \
static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_regs_temp_##offset, NULL);
#define sysfs_temp_reg_offset(reg, offset) \
static ssize_t show_regs_temp_##reg##offset (struct device *dev, struct device_attribute *attr, char *buf) \
{ \
return show_temp_##reg (dev, buf, offset); \
} \
static ssize_t \
store_regs_temp_##reg##offset (struct device *dev, struct device_attribute *attr, \
const char *buf, size_t count) \
{ \
return store_temp_##reg (dev, buf, count, offset); \
} \
static DEVICE_ATTR(temp##offset##_##reg, S_IRUGO| S_IWUSR, \
show_regs_temp_##reg##offset, store_regs_temp_##reg##offset);
#define sysfs_temp_offsets(offset) \
sysfs_temp_offset(offset) \
sysfs_temp_reg_offset(max, offset) \
sysfs_temp_reg_offset(max_hyst, offset)
sysfs_temp_offsets(1);
sysfs_temp_offsets(2);
sysfs_temp_offsets(3);
#define device_create_file_temp(client, offset) \
do { \
device_create_file(&client->dev, &dev_attr_temp##offset##_input); \
device_create_file(&client->dev, &dev_attr_temp##offset##_max); \
device_create_file(&client->dev, &dev_attr_temp##offset##_max_hyst); \
} while (0)
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);
#define device_create_file_vid(client) \
device_create_file(&client->dev, &dev_attr_cpu0_vid)
static ssize_t
show_vrm_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->vrm);
}
static ssize_t
store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct w83627hf_data *data = i2c_get_clientdata(client);
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);
#define device_create_file_vrm(client) \
device_create_file(&client->dev, &dev_attr_vrm)
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);
#define device_create_file_alarms(client) \
device_create_file(&client->dev, &dev_attr_alarms)
#define show_beep_reg(REG, reg) \
static ssize_t show_beep_##reg (struct device *dev, struct device_attribute *attr, char *buf) \
{ \
struct w83627hf_data *data = w83627hf_update_device(dev); \
return sprintf(buf,"%ld\n", \
(long)BEEP_##REG##_FROM_REG(data->beep_##reg)); \
}
show_beep_reg(ENABLE, enable)
show_beep_reg(MASK, mask)
#define BEEP_ENABLE 0 /* Store beep_enable */
#define BEEP_MASK 1 /* Store beep_mask */
static ssize_t
store_beep_reg(struct device *dev, const char *buf, size_t count,
int update_mask)
{
struct i2c_client *client = to_i2c_client(dev);
struct w83627hf_data *data = i2c_get_clientdata(client);
u32 val, val2;
val = simple_strtoul(buf, NULL, 10);
down(&data->update_lock);
if (update_mask == BEEP_MASK) { /* We are storing beep_mask */
data->beep_mask = BEEP_MASK_TO_REG(val);
w83627hf_write_value(client, W83781D_REG_BEEP_INTS1,
data->beep_mask & 0xff);
w83627hf_write_value(client, W83781D_REG_BEEP_INTS3,
((data->beep_mask) >> 16) & 0xff);
val2 = (data->beep_mask >> 8) & 0x7f;
} else { /* We are storing beep_enable */
val2 =
w83627hf_read_value(client, W83781D_REG_BEEP_INTS2) & 0x7f;
data->beep_enable = BEEP_ENABLE_TO_REG(val);
}
w83627hf_write_value(client, W83781D_REG_BEEP_INTS2,
val2 | data->beep_enable << 7);
up(&data->update_lock);
return count;
}
#define sysfs_beep(REG, reg) \
static ssize_t show_regs_beep_##reg (struct device *dev, struct device_attribute *attr, char *buf) \
{ \
return show_beep_##reg(dev, attr, buf); \
} \
static ssize_t \
store_regs_beep_##reg (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
{ \
return store_beep_reg(dev, buf, count, BEEP_##REG); \
} \
static DEVICE_ATTR(beep_##reg, S_IRUGO | S_IWUSR, \
show_regs_beep_##reg, store_regs_beep_##reg);
sysfs_beep(ENABLE, enable);
sysfs_beep(MASK, mask);
#define device_create_file_beep(client) \
do { \
device_create_file(&client->dev, &dev_attr_beep_enable); \
device_create_file(&client->dev, &dev_attr_beep_mask); \
} while (0)
static ssize_t
show_fan_div_reg(struct device *dev, char *buf, int nr)
{
struct w83627hf_data *data = w83627hf_update_device(dev);
return sprintf(buf, "%ld\n",
(long) DIV_FROM_REG(data->fan_div[nr - 1]));
}
/* 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 suprise; the user doesn't expect the fan minimum to change just
because the divisor changed. */
static ssize_t
store_fan_div_reg(struct device *dev, const char *buf, size_t count, int nr)
{
struct i2c_client *client = to_i2c_client(dev);
struct w83627hf_data *data = i2c_get_clientdata(client);
unsigned long min;
u8 reg;
unsigned long val = simple_strtoul(buf, NULL, 10);
down(&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(client, 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(client, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV, reg);
reg = (w83627hf_read_value(client, W83781D_REG_VBAT)
& ~(1 << (5 + nr)))
| ((data->fan_div[nr] & 0x04) << (3 + nr));
w83627hf_write_value(client, 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(client, W83781D_REG_FAN_MIN(nr+1), data->fan_min[nr]);
up(&data->update_lock);
return count;
}
#define sysfs_fan_div(offset) \
static ssize_t show_regs_fan_div_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
{ \
return show_fan_div_reg(dev, buf, offset); \
} \
static ssize_t \
store_regs_fan_div_##offset (struct device *dev, struct device_attribute *attr, \
const char *buf, size_t count) \
{ \
return store_fan_div_reg(dev, buf, count, offset - 1); \
} \
static DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \
show_regs_fan_div_##offset, store_regs_fan_div_##offset);
sysfs_fan_div(1);
sysfs_fan_div(2);
sysfs_fan_div(3);
#define device_create_file_fan_div(client, offset) \
do { \
device_create_file(&client->dev, &dev_attr_fan##offset##_div); \
} while (0)
static ssize_t
show_pwm_reg(struct device *dev, char *buf, int nr)
{
struct w83627hf_data *data = w83627hf_update_device(dev);
return sprintf(buf, "%ld\n", (long) data->pwm[nr - 1]);
}
static ssize_t
store_pwm_reg(struct device *dev, const char *buf, size_t count, int nr)
{
struct i2c_client *client = to_i2c_client(dev);
struct w83627hf_data *data = i2c_get_clientdata(client);
u32 val;
val = simple_strtoul(buf, NULL, 10);
down(&data->update_lock);
if (data->type == w83627thf) {
/* bits 0-3 are reserved in 627THF */
data->pwm[nr - 1] = PWM_TO_REG(val) & 0xf0;
w83627hf_write_value(client,
W836X7HF_REG_PWM(data->type, nr),
data->pwm[nr - 1] |
(w83627hf_read_value(client,
W836X7HF_REG_PWM(data->type, nr)) & 0x0f));
} else {
data->pwm[nr - 1] = PWM_TO_REG(val);
w83627hf_write_value(client,
W836X7HF_REG_PWM(data->type, nr),
data->pwm[nr - 1]);
}
up(&data->update_lock);
return count;
}
#define sysfs_pwm(offset) \
static ssize_t show_regs_pwm_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
{ \
return show_pwm_reg(dev, buf, offset); \
} \
static ssize_t \
store_regs_pwm_##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
{ \
return store_pwm_reg(dev, buf, count, offset); \
} \
static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \
show_regs_pwm_##offset, store_regs_pwm_##offset);
sysfs_pwm(1);
sysfs_pwm(2);
sysfs_pwm(3);
#define device_create_file_pwm(client, offset) \
do { \
device_create_file(&client->dev, &dev_attr_pwm##offset); \
} while (0)
static ssize_t
show_sensor_reg(struct device *dev, char *buf, int nr)
{
struct w83627hf_data *data = w83627hf_update_device(dev);
return sprintf(buf, "%ld\n", (long) data->sens[nr - 1]);
}
static ssize_t
store_sensor_reg(struct device *dev, const char *buf, size_t count, int nr)
{
struct i2c_client *client = to_i2c_client(dev);
struct w83627hf_data *data = i2c_get_clientdata(client);
u32 val, tmp;
val = simple_strtoul(buf, NULL, 10);
down(&data->update_lock);
switch (val) {
case 1: /* PII/Celeron diode */
tmp = w83627hf_read_value(client, W83781D_REG_SCFG1);
w83627hf_write_value(client, W83781D_REG_SCFG1,
tmp | BIT_SCFG1[nr - 1]);
tmp = w83627hf_read_value(client, W83781D_REG_SCFG2);
w83627hf_write_value(client, W83781D_REG_SCFG2,
tmp | BIT_SCFG2[nr - 1]);
data->sens[nr - 1] = val;
break;
case 2: /* 3904 */
tmp = w83627hf_read_value(client, W83781D_REG_SCFG1);
w83627hf_write_value(client, W83781D_REG_SCFG1,
tmp | BIT_SCFG1[nr - 1]);
tmp = w83627hf_read_value(client, W83781D_REG_SCFG2);
w83627hf_write_value(client, W83781D_REG_SCFG2,
tmp & ~BIT_SCFG2[nr - 1]);
data->sens[nr - 1] = val;
break;
case W83781D_DEFAULT_BETA: /* thermistor */
tmp = w83627hf_read_value(client, W83781D_REG_SCFG1);
w83627hf_write_value(client, W83781D_REG_SCFG1,
tmp & ~BIT_SCFG1[nr - 1]);
data->sens[nr - 1] = val;
break;
default:
dev_err(&client->dev,
"Invalid sensor type %ld; must be 1, 2, or %d\n",
(long) val, W83781D_DEFAULT_BETA);
break;
}
up(&data->update_lock);
return count;
}
#define sysfs_sensor(offset) \
static ssize_t show_regs_sensor_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
{ \
return show_sensor_reg(dev, buf, offset); \
} \
static ssize_t \
store_regs_sensor_##offset (struct device *dev, struct device_attribute *attr, const char *buf, size_t count) \
{ \
return store_sensor_reg(dev, buf, count, offset); \
} \
static DEVICE_ATTR(temp##offset##_type, S_IRUGO | S_IWUSR, \
show_regs_sensor_##offset, store_regs_sensor_##offset);
sysfs_sensor(1);
sysfs_sensor(2);
sysfs_sensor(3);
#define device_create_file_sensor(client, offset) \
do { \
device_create_file(&client->dev, &dev_attr_temp##offset##_type); \
} while (0)
static int __init w83627hf_find(int sioaddr, unsigned short *addr)
{
u16 val;
REG = sioaddr;
VAL = sioaddr + 1;
superio_enter();
val= superio_inb(DEVID);
if(val != W627_DEVID &&
val != W627THF_DEVID &&
val != W697_DEVID &&
val != W637_DEVID) {
superio_exit();
return -ENODEV;
}
superio_select(W83627HF_LD_HWM);
val = (superio_inb(WINB_BASE_REG) << 8) |
superio_inb(WINB_BASE_REG + 1);
*addr = val & WINB_ALIGNMENT;
if (*addr == 0 && force_addr == 0) {
superio_exit();
return -ENODEV;
}
superio_exit();
return 0;
}
static int w83627hf_detect(struct i2c_adapter *adapter)
{
int val, kind;
struct i2c_client *new_client;
struct w83627hf_data *data;
int err = 0;
const char *client_name = "";
if(force_addr)
address = force_addr & WINB_ALIGNMENT;
if (!request_region(address + WINB_REGION_OFFSET, WINB_REGION_SIZE,
w83627hf_driver.name)) {
err = -EBUSY;
goto ERROR0;
}
if(force_addr) {
printk("w83627hf.o: forcing ISA address 0x%04X\n", address);
superio_enter();
superio_select(W83627HF_LD_HWM);
superio_outb(WINB_BASE_REG, address >> 8);
superio_outb(WINB_BASE_REG+1, address & 0xff);
superio_exit();
}
superio_enter();
val= superio_inb(DEVID);
if(val == W627_DEVID)
kind = w83627hf;
else if(val == W697_DEVID)
kind = w83697hf;
else if(val == W627THF_DEVID)
kind = w83627thf;
else if(val == W637_DEVID)
kind = w83637hf;
else {
dev_info(&adapter->dev,
"Unsupported chip (dev_id=0x%02X).\n", val);
goto ERROR1;
}
superio_select(W83627HF_LD_HWM);
if((val = 0x01 & superio_inb(WINB_ACT_REG)) == 0)
superio_outb(WINB_ACT_REG, 1);
superio_exit();
/* OK. For now, we presume we have a valid client. We now create the
client structure, even though we cannot fill it completely yet.
But it allows us to access w83627hf_{read,write}_value. */
if (!(data = kzalloc(sizeof(struct w83627hf_data), GFP_KERNEL))) {
err = -ENOMEM;
goto ERROR1;
}
new_client = &data->client;
i2c_set_clientdata(new_client, data);
new_client->addr = address;
init_MUTEX(&data->lock);
new_client->adapter = adapter;
new_client->driver = &w83627hf_driver;
new_client->flags = 0;
if (kind == w83627hf) {
client_name = "w83627hf";
} else if (kind == w83627thf) {
client_name = "w83627thf";
} else if (kind == w83697hf) {
client_name = "w83697hf";
} else if (kind == w83637hf) {
client_name = "w83637hf";
}
/* Fill in the remaining client fields and put into the global list */
strlcpy(new_client->name, client_name, I2C_NAME_SIZE);
data->type = kind;
data->valid = 0;
init_MUTEX(&data->update_lock);
/* Tell the I2C layer a new client has arrived */
if ((err = i2c_attach_client(new_client)))
goto ERROR2;
data->lm75 = NULL;
/* Initialize the chip */
w83627hf_init_client(new_client);
/* A few vars need to be filled upon startup */
data->fan_min[0] = w83627hf_read_value(new_client, W83781D_REG_FAN_MIN(1));
data->fan_min[1] = w83627hf_read_value(new_client, W83781D_REG_FAN_MIN(2));
data->fan_min[2] = w83627hf_read_value(new_client, W83781D_REG_FAN_MIN(3));
/* Register sysfs hooks */
data->class_dev = hwmon_device_register(&new_client->dev);
if (IS_ERR(data->class_dev)) {
err = PTR_ERR(data->class_dev);
goto ERROR3;
}
device_create_file_in(new_client, 0);
if (kind != w83697hf)
device_create_file_in(new_client, 1);
device_create_file_in(new_client, 2);
device_create_file_in(new_client, 3);
device_create_file_in(new_client, 4);
if (kind != w83627thf && kind != w83637hf) {
device_create_file_in(new_client, 5);
device_create_file_in(new_client, 6);
}
device_create_file_in(new_client, 7);
device_create_file_in(new_client, 8);
device_create_file_fan(new_client, 1);
device_create_file_fan(new_client, 2);
if (kind != w83697hf)
device_create_file_fan(new_client, 3);
device_create_file_temp(new_client, 1);
device_create_file_temp(new_client, 2);
if (kind != w83697hf)
device_create_file_temp(new_client, 3);
if (kind != w83697hf)
device_create_file_vid(new_client);
if (kind != w83697hf)
device_create_file_vrm(new_client);
device_create_file_fan_div(new_client, 1);
device_create_file_fan_div(new_client, 2);
if (kind != w83697hf)
device_create_file_fan_div(new_client, 3);
device_create_file_alarms(new_client);
device_create_file_beep(new_client);
device_create_file_pwm(new_client, 1);
device_create_file_pwm(new_client, 2);
if (kind == w83627thf || kind == w83637hf)
device_create_file_pwm(new_client, 3);
device_create_file_sensor(new_client, 1);
device_create_file_sensor(new_client, 2);
if (kind != w83697hf)
device_create_file_sensor(new_client, 3);
return 0;
ERROR3:
i2c_detach_client(new_client);
ERROR2:
kfree(data);
ERROR1:
release_region(address + WINB_REGION_OFFSET, WINB_REGION_SIZE);
ERROR0:
return err;
}
static int w83627hf_detach_client(struct i2c_client *client)
{
struct w83627hf_data *data = i2c_get_clientdata(client);
int err;
hwmon_device_unregister(data->class_dev);
if ((err = i2c_detach_client(client)))
return err;
release_region(client->addr + WINB_REGION_OFFSET, WINB_REGION_SIZE);
kfree(data);
return 0;
}
/*
ISA access must always be locked explicitly!
We ignore the W83781D BUSY flag at this moment - it could lead to deadlocks,
would slow down the W83781D access and should not be necessary.
There are some ugly typecasts here, but the good news is - they should
nowhere else be necessary! */
static int w83627hf_read_value(struct i2c_client *client, u16 reg)
{
struct w83627hf_data *data = i2c_get_clientdata(client);
int res, word_sized;
down(&data->lock);
word_sized = (((reg & 0xff00) == 0x100)
|| ((reg & 0xff00) == 0x200))
&& (((reg & 0x00ff) == 0x50)
|| ((reg & 0x00ff) == 0x53)
|| ((reg & 0x00ff) == 0x55));
if (reg & 0xff00) {
outb_p(W83781D_REG_BANK,
client->addr + W83781D_ADDR_REG_OFFSET);
outb_p(reg >> 8,
client->addr + W83781D_DATA_REG_OFFSET);
}
outb_p(reg & 0xff, client->addr + W83781D_ADDR_REG_OFFSET);
res = inb_p(client->addr + W83781D_DATA_REG_OFFSET);
if (word_sized) {
outb_p((reg & 0xff) + 1,
client->addr + W83781D_ADDR_REG_OFFSET);
res =
(res << 8) + inb_p(client->addr +
W83781D_DATA_REG_OFFSET);
}
if (reg & 0xff00) {
outb_p(W83781D_REG_BANK,
client->addr + W83781D_ADDR_REG_OFFSET);
outb_p(0, client->addr + W83781D_DATA_REG_OFFSET);
}
up(&data->lock);
return res;
}
static int w83627thf_read_gpio5(struct i2c_client *client)
{
int res = 0xff, sel;
superio_enter();
superio_select(W83627HF_LD_GPIO5);
/* Make sure these GPIO pins are enabled */
if (!(superio_inb(W83627THF_GPIO5_EN) & (1<<3))) {
dev_dbg(&client->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(W83627THF_GPIO5_IOSR);
if ((sel & 0x1f) != 0x1f) {
dev_dbg(&client->dev, "GPIO5 not configured for VID "
"function\n");
goto exit;
}
dev_info(&client->dev, "Reading VID from GPIO5\n");
res = superio_inb(W83627THF_GPIO5_DR) & sel;
exit:
superio_exit();
return res;
}
static int w83627hf_write_value(struct i2c_client *client, u16 reg, u16 value)
{
struct w83627hf_data *data = i2c_get_clientdata(client);
int word_sized;
down(&data->lock);
word_sized = (((reg & 0xff00) == 0x100)
|| ((reg & 0xff00) == 0x200))
&& (((reg & 0x00ff) == 0x53)
|| ((reg & 0x00ff) == 0x55));
if (reg & 0xff00) {
outb_p(W83781D_REG_BANK,
client->addr + W83781D_ADDR_REG_OFFSET);
outb_p(reg >> 8,
client->addr + W83781D_DATA_REG_OFFSET);
}
outb_p(reg & 0xff, client->addr + W83781D_ADDR_REG_OFFSET);
if (word_sized) {
outb_p(value >> 8,
client->addr + W83781D_DATA_REG_OFFSET);
outb_p((reg & 0xff) + 1,
client->addr + W83781D_ADDR_REG_OFFSET);
}
outb_p(value & 0xff,
client->addr + W83781D_DATA_REG_OFFSET);
if (reg & 0xff00) {
outb_p(W83781D_REG_BANK,
client->addr + W83781D_ADDR_REG_OFFSET);
outb_p(0, client->addr + W83781D_DATA_REG_OFFSET);
}
up(&data->lock);
return 0;
}
static void w83627hf_init_client(struct i2c_client *client)
{
struct w83627hf_data *data = i2c_get_clientdata(client);
int i;
int type = data->type;
u8 tmp;
if (reset) {
/* Resetting the chip has been the default for a long time,
but repeatedly caused problems (fans going to full
speed...) so it is now optional. It might even go away if
nobody reports it as being useful, as I see very little
reason why this would be needed at all. */
dev_info(&client->dev, "If reset=1 solved a problem you were "
"having, please report!\n");
/* save this register */
i = w83627hf_read_value(client, W83781D_REG_BEEP_CONFIG);
/* Reset all except Watchdog values and last conversion values
This sets fan-divs to 2, among others */
w83627hf_write_value(client, W83781D_REG_CONFIG, 0x80);
/* Restore the register and disable power-on abnormal beep.
This saves FAN 1/2/3 input/output values set by BIOS. */
w83627hf_write_value(client, W83781D_REG_BEEP_CONFIG, i | 0x80);
/* Disable master beep-enable (reset turns it on).
Individual beeps should be reset to off but for some reason
disabling this bit helps some people not get beeped */
w83627hf_write_value(client, W83781D_REG_BEEP_INTS2, 0);
}
/* 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(client, W83781D_REG_I2C_SUBADDR, 0x89);
w83627hf_write_value(client, W83781D_REG_I2C_ADDR, force_i2c);
/* Read VID only once */
if (w83627hf == data->type || w83637hf == data->type) {
int lo = w83627hf_read_value(client, W83781D_REG_VID_FANDIV);
int hi = w83627hf_read_value(client, W83781D_REG_CHIPID);
data->vid = (lo & 0x0f) | ((hi & 0x01) << 4);
} else if (w83627thf == data->type) {
data->vid = w83627thf_read_gpio5(client) & 0x3f;
}
/* Read VRM & OVT Config only once */
if (w83627thf == data->type || w83637hf == data->type) {
data->vrm_ovt =
w83627hf_read_value(client, W83627THF_REG_VRM_OVT_CFG);
data->vrm = (data->vrm_ovt & 0x01) ? 90 : 82;
} else {
/* Convert VID to voltage based on default VRM */
data->vrm = vid_which_vrm();
}
tmp = w83627hf_read_value(client, W83781D_REG_SCFG1);
for (i = 1; i <= 3; i++) {
if (!(tmp & BIT_SCFG1[i - 1])) {
data->sens[i - 1] = W83781D_DEFAULT_BETA;
} else {
if (w83627hf_read_value
(client,
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(client, W83781D_REG_TEMP2_CONFIG);
if (tmp & 0x01) {
dev_warn(&client->dev, "Enabling temp2, readings "
"might not make sense\n");
w83627hf_write_value(client, W83781D_REG_TEMP2_CONFIG,
tmp & 0xfe);
}
/* Enable temp3 */
if (type != w83697hf) {
tmp = w83627hf_read_value(client,
W83781D_REG_TEMP3_CONFIG);
if (tmp & 0x01) {
dev_warn(&client->dev, "Enabling temp3, "
"readings might not make sense\n");
w83627hf_write_value(client,
W83781D_REG_TEMP3_CONFIG, tmp & 0xfe);
}
}
}
/* Start monitoring */
w83627hf_write_value(client, W83781D_REG_CONFIG,
(w83627hf_read_value(client,
W83781D_REG_CONFIG) & 0xf7)
| 0x01);
}
static struct w83627hf_data *w83627hf_update_device(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct w83627hf_data *data = i2c_get_clientdata(client);
int i;
down(&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 == w83627thf || data->type == w83637hf)
&& (i == 5 || i == 6)))
continue;
data->in[i] =
w83627hf_read_value(client, W83781D_REG_IN(i));
data->in_min[i] =
w83627hf_read_value(client,
W83781D_REG_IN_MIN(i));
data->in_max[i] =
w83627hf_read_value(client,
W83781D_REG_IN_MAX(i));
}
for (i = 1; i <= 3; i++) {
data->fan[i - 1] =
w83627hf_read_value(client, W83781D_REG_FAN(i));
data->fan_min[i - 1] =
w83627hf_read_value(client,
W83781D_REG_FAN_MIN(i));
}
for (i = 1; i <= 3; i++) {
u8 tmp = w83627hf_read_value(client,
W836X7HF_REG_PWM(data->type, i));
/* bits 0-3 are reserved in 627THF */
if (data->type == w83627thf)
tmp &= 0xf0;
data->pwm[i - 1] = tmp;
if(i == 2 &&
(data->type == w83627hf || data->type == w83697hf))
break;
}
data->temp = w83627hf_read_value(client, W83781D_REG_TEMP(1));
data->temp_max =
w83627hf_read_value(client, W83781D_REG_TEMP_OVER(1));
data->temp_max_hyst =
w83627hf_read_value(client, W83781D_REG_TEMP_HYST(1));
data->temp_add[0] =
w83627hf_read_value(client, W83781D_REG_TEMP(2));
data->temp_max_add[0] =
w83627hf_read_value(client, W83781D_REG_TEMP_OVER(2));
data->temp_max_hyst_add[0] =
w83627hf_read_value(client, W83781D_REG_TEMP_HYST(2));
if (data->type != w83697hf) {
data->temp_add[1] =
w83627hf_read_value(client, W83781D_REG_TEMP(3));
data->temp_max_add[1] =
w83627hf_read_value(client, W83781D_REG_TEMP_OVER(3));
data->temp_max_hyst_add[1] =
w83627hf_read_value(client, W83781D_REG_TEMP_HYST(3));
}
i = w83627hf_read_value(client, W83781D_REG_VID_FANDIV);
data->fan_div[0] = (i >> 4) & 0x03;
data->fan_div[1] = (i >> 6) & 0x03;
if (data->type != w83697hf) {
data->fan_div[2] = (w83627hf_read_value(client,
W83781D_REG_PIN) >> 6) & 0x03;
}
i = w83627hf_read_value(client, W83781D_REG_VBAT);
data->fan_div[0] |= (i >> 3) & 0x04;
data->fan_div[1] |= (i >> 4) & 0x04;
if (data->type != w83697hf)
data->fan_div[2] |= (i >> 5) & 0x04;
data->alarms =
w83627hf_read_value(client, W83781D_REG_ALARM1) |
(w83627hf_read_value(client, W83781D_REG_ALARM2) << 8) |
(w83627hf_read_value(client, W83781D_REG_ALARM3) << 16);
i = w83627hf_read_value(client, W83781D_REG_BEEP_INTS2);
data->beep_enable = i >> 7;
data->beep_mask = ((i & 0x7f) << 8) |
w83627hf_read_value(client, W83781D_REG_BEEP_INTS1) |
w83627hf_read_value(client, W83781D_REG_BEEP_INTS3) << 16;
data->last_updated = jiffies;
data->valid = 1;
}
up(&data->update_lock);
return data;
}
static int __init sensors_w83627hf_init(void)
{
if (w83627hf_find(0x2e, &address)
&& w83627hf_find(0x4e, &address)) {
return -ENODEV;
}
return i2c_isa_add_driver(&w83627hf_driver);
}
static void __exit sensors_w83627hf_exit(void)
{
i2c_isa_del_driver(&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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