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w83781d.c
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/*
w83781d.c - Part of lm_sensors, Linux kernel modules for hardware
monitoring
Copyright (c) 1998 - 2001 Frodo Looijaard <frodol@dds.nl>,
Philip Edelbrock <phil@netroedge.com>,
and Mark Studebaker <mdsxyz123@yahoo.com>
Copyright (c) 2007 - 2008 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
as99127f 7 3 0 3 0x31 0x12c3 yes no
as99127f rev.2 (type_name = as99127f) 0x31 0x5ca3 yes no
w83781d 7 3 0 3 0x10-1 0x5ca3 yes yes
w83782d 9 3 2-4 3 0x30 0x5ca3 yes yes
w83783s 5-6 3 2 1-2 0x40 0x5ca3 yes no
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/jiffies.h>
#include <linux/i2c.h>
#include <linux/hwmon.h>
#include <linux/hwmon-vid.h>
#include <linux/hwmon-sysfs.h>
#include <linux/sysfs.h>
#include <linux/err.h>
#include <linux/mutex.h>
#ifdef CONFIG_ISA
#include <linux/platform_device.h>
#include <linux/ioport.h>
#include <asm/io.h>
#endif
#include "lm75.h"
/* Addresses to scan */
static const unsigned short normal_i2c[] = { 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d,
0x2e, 0x2f, I2C_CLIENT_END };
/* Insmod parameters */
I2C_CLIENT_INSMOD_4(w83781d, w83782d, w83783s, as99127f);
static unsigned short force_subclients[4];
module_param_array(force_subclients, short, NULL, 0);
MODULE_PARM_DESC(force_subclients, "List of subclient addresses: "
"{bus, clientaddr, subclientaddr1, subclientaddr2}");
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");
/* Constants specified below */
/* Length of ISA address segment */
#define W83781D_EXTENT 8
/* Where are the ISA address/data registers relative to the base address */
#define W83781D_ADDR_REG_OFFSET 5
#define W83781D_DATA_REG_OFFSET 6
/* The device registers */
/* in nr from 0 to 8 */
#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))
/* fan nr from 0 to 2 */
#define W83781D_REG_FAN_MIN(nr) (0x3b + (nr))
#define W83781D_REG_FAN(nr) (0x28 + (nr))
#define W83781D_REG_BANK 0x4E
#define W83781D_REG_TEMP2_CONFIG 0x152
#define W83781D_REG_TEMP3_CONFIG 0x252
/* temp nr from 1 to 3 */
#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_CONFIG 0x40
/* Interrupt status (W83781D, AS99127F) */
#define W83781D_REG_ALARM1 0x41
#define W83781D_REG_ALARM2 0x42
/* Real-time status (W83782D, W83783S) */
#define W83782D_REG_ALARM1 0x459
#define W83782D_REG_ALARM2 0x45A
#define W83782D_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 /* not on W83781D */
#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
/* 782D/783S only */
#define W83781D_REG_VBAT 0x5D
/* PWM 782D (1-4) and 783S (1-2) only */
static const u8 W83781D_REG_PWM[] = { 0x5B, 0x5A, 0x5E, 0x5F };
#define W83781D_REG_PWMCLK12 0x5C
#define W83781D_REG_PWMCLK34 0x45C
#define W83781D_REG_I2C_ADDR 0x48
#define W83781D_REG_I2C_SUBADDR 0x4A
/* The following are undocumented in the data sheets however we
received the information in an email from Winbond tech support */
/* Sensor selection - not on 781d */
#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 */
#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);
}
static inline long
FAN_FROM_REG(u8 val, int div)
{
if (val == 0)
return -1;
if (val == 255)
return 0;
return 1350000 / (val * div);
}
#define TEMP_TO_REG(val) SENSORS_LIMIT((val) / 1000, -127, 128)
#define TEMP_FROM_REG(val) ((val) * 1000)
#define BEEP_MASK_FROM_REG(val,type) ((type) == as99127f ? \
(~(val)) & 0x7fff : (val) & 0xff7fff)
#define BEEP_MASK_TO_REG(val,type) ((type) == as99127f ? \
(~(val)) & 0x7fff : (val) & 0xff7fff)
#define DIV_FROM_REG(val) (1 << (val))
static inline u8
DIV_TO_REG(long val, enum chips type)
{
int i;
val = SENSORS_LIMIT(val, 1,
((type == w83781d
|| type == as99127f) ? 8 : 128)) >> 1;
for (i = 0; i < 7; i++) {
if (val == 0)
break;
val >>= 1;
}
return i;
}
struct w83781d_data {
struct i2c_client *client;
struct device *hwmon_dev;
struct mutex lock;
enum chips type;
/* For ISA device only */
const char *name;
int isa_addr;
struct mutex update_lock;
char valid; /* !=0 if following fields are valid */
unsigned long last_updated; /* In jiffies */
struct i2c_client *lm75[2]; /* for secondary I2C addresses */
/* array of 2 pointers to subclients */
u8 in[9]; /* Register value - 8 & 9 for 782D only */
u8 in_max[9]; /* Register value - 8 & 9 for 782D only */
u8 in_min[9]; /* Register value - 8 & 9 for 782D only */
u8 fan[3]; /* Register value */
u8 fan_min[3]; /* Register value */
s8 temp; /* Register value */
s8 temp_max; /* Register value */
s8 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 pwm[4]; /* Register value */
u8 pwm2_enable; /* Boolean */
u16 sens[3]; /* 782D/783S only.
1 = pentium diode; 2 = 3904 diode;
4 = thermistor */
u8 vrm;
};
static struct w83781d_data *w83781d_data_if_isa(void);
static int w83781d_alias_detect(struct i2c_client *client, u8 chipid);
static int w83781d_read_value(struct w83781d_data *data, u16 reg);
static int w83781d_write_value(struct w83781d_data *data, u16 reg, u16 value);
static struct w83781d_data *w83781d_update_device(struct device *dev);
static void w83781d_init_device(struct device *dev);
/* following are the sysfs callback functions */
#define show_in_reg(reg) \
static ssize_t show_##reg (struct device *dev, struct device_attribute *da, \
char *buf) \
{ \
struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \
struct w83781d_data *data = w83781d_update_device(dev); \
return sprintf(buf, "%ld\n", \
(long)IN_FROM_REG(data->reg[attr->index])); \
}
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, struct device_attribute \
*da, const char *buf, size_t count) \
{ \
struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \
struct w83781d_data *data = dev_get_drvdata(dev); \
int nr = attr->index; \
u32 val; \
\
val = simple_strtoul(buf, NULL, 10); \
\
mutex_lock(&data->update_lock); \
data->in_##reg[nr] = IN_TO_REG(val); \
w83781d_write_value(data, W83781D_REG_IN_##REG(nr), data->in_##reg[nr]); \
\
mutex_unlock(&data->update_lock); \
return count; \
}
store_in_reg(MIN, min);
store_in_reg(MAX, max);
#define sysfs_in_offsets(offset) \
static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \
show_in, 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_in_offsets(0);
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);
#define show_fan_reg(reg) \
static ssize_t show_##reg (struct device *dev, struct device_attribute *da, \
char *buf) \
{ \
struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \
struct w83781d_data *data = w83781d_update_device(dev); \
return sprintf(buf,"%ld\n", \
FAN_FROM_REG(data->reg[attr->index], \
DIV_FROM_REG(data->fan_div[attr->index]))); \
}
show_fan_reg(fan);
show_fan_reg(fan_min);
static ssize_t
store_fan_min(struct device *dev, struct device_attribute *da,
const char *buf, size_t count)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
struct w83781d_data *data = dev_get_drvdata(dev);
int nr = attr->index;
u32 val;
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]));
w83781d_write_value(data, W83781D_REG_FAN_MIN(nr),
data->fan_min[nr]);
mutex_unlock(&data->update_lock);
return count;
}
static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0);
static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO | S_IWUSR,
show_fan_min, store_fan_min, 0);
static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1);
static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO | S_IWUSR,
show_fan_min, store_fan_min, 1);
static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2);
static SENSOR_DEVICE_ATTR(fan3_min, S_IRUGO | S_IWUSR,
show_fan_min, store_fan_min, 2);
#define show_temp_reg(reg) \
static ssize_t show_##reg (struct device *dev, struct device_attribute *da, \
char *buf) \
{ \
struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \
struct w83781d_data *data = w83781d_update_device(dev); \
int nr = attr->index; \
if (nr >= 2) { /* TEMP2 and TEMP3 */ \
return sprintf(buf,"%d\n", \
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, \
struct device_attribute *da, const char *buf, size_t count) \
{ \
struct sensor_device_attribute *attr = to_sensor_dev_attr(da); \
struct w83781d_data *data = dev_get_drvdata(dev); \
int nr = attr->index; \
long val; \
\
val = simple_strtol(buf, NULL, 10); \
\
mutex_lock(&data->update_lock); \
\
if (nr >= 2) { /* TEMP2 and TEMP3 */ \
data->temp_##reg##_add[nr-2] = LM75_TEMP_TO_REG(val); \
w83781d_write_value(data, W83781D_REG_TEMP_##REG(nr), \
data->temp_##reg##_add[nr-2]); \
} else { /* TEMP1 */ \
data->temp_##reg = TEMP_TO_REG(val); \
w83781d_write_value(data, W83781D_REG_TEMP_##REG(nr), \
data->temp_##reg); \
} \
\
mutex_unlock(&data->update_lock); \
return count; \
}
store_temp_reg(OVER, max);
store_temp_reg(HYST, max_hyst);
#define sysfs_temp_offsets(offset) \
static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
show_temp, NULL, offset); \
static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
show_temp_max, store_temp_max, offset); \
static SENSOR_DEVICE_ATTR(temp##offset##_max_hyst, S_IRUGO | S_IWUSR, \
show_temp_max_hyst, store_temp_max_hyst, offset);
sysfs_temp_offsets(1);
sysfs_temp_offsets(2);
sysfs_temp_offsets(3);
static ssize_t
show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf)
{
struct w83781d_data *data = w83781d_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 w83781d_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 w83781d_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 w83781d_data *data = w83781d_update_device(dev);
return sprintf(buf, "%u\n", 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 w83781d_data *data = w83781d_update_device(dev);
int bitnr = to_sensor_dev_attr(attr)->index;
return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
}
/* The W83781D has a single alarm bit for temp2 and temp3 */
static ssize_t show_temp3_alarm(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct w83781d_data *data = w83781d_update_device(dev);
int bitnr = (data->type == w83781d) ? 5 : 13;
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_temp3_alarm, NULL, 0);
static ssize_t show_beep_mask (struct device *dev, struct device_attribute *attr, char *buf)
{
struct w83781d_data *data = w83781d_update_device(dev);
return sprintf(buf, "%ld\n",
(long)BEEP_MASK_FROM_REG(data->beep_mask, data->type));
}
static ssize_t
store_beep_mask(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct w83781d_data *data = dev_get_drvdata(dev);
u32 val;
val = simple_strtoul(buf, NULL, 10);
mutex_lock(&data->update_lock);
data->beep_mask &= 0x8000; /* preserve beep enable */
data->beep_mask |= BEEP_MASK_TO_REG(val, data->type);
w83781d_write_value(data, W83781D_REG_BEEP_INTS1,
data->beep_mask & 0xff);
w83781d_write_value(data, W83781D_REG_BEEP_INTS2,
(data->beep_mask >> 8) & 0xff);
if (data->type != w83781d && data->type != as99127f) {
w83781d_write_value(data, W83781D_REG_BEEP_INTS3,
((data->beep_mask) >> 16) & 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 w83781d_data *data = w83781d_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 w83781d_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 = w83781d_read_value(data, W83781D_REG_BEEP_INTS1);
if (bit)
reg |= (1 << bitnr);
else
reg &= ~(1 << bitnr);
w83781d_write_value(data, W83781D_REG_BEEP_INTS1, reg);
} else if (bitnr < 16) {
reg = w83781d_read_value(data, W83781D_REG_BEEP_INTS2);
if (bit)
reg |= (1 << (bitnr - 8));
else
reg &= ~(1 << (bitnr - 8));
w83781d_write_value(data, W83781D_REG_BEEP_INTS2, reg);
} else {
reg = w83781d_read_value(data, W83781D_REG_BEEP_INTS3);
if (bit)
reg |= (1 << (bitnr - 16));
else
reg &= ~(1 << (bitnr - 16));
w83781d_write_value(data, W83781D_REG_BEEP_INTS3, reg);
}
mutex_unlock(&data->update_lock);
return count;
}
/* The W83781D has a single beep bit for temp2 and temp3 */
static ssize_t show_temp3_beep(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct w83781d_data *data = w83781d_update_device(dev);
int bitnr = (data->type == w83781d) ? 5 : 13;
return sprintf(buf, "%u\n", (data->beep_mask >> bitnr) & 1);
}
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,
show_temp3_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 *da, char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
struct w83781d_data *data = w83781d_update_device(dev);
return sprintf(buf, "%ld\n",
(long) DIV_FROM_REG(data->fan_div[attr->index]));
}
/* 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 *da,
const char *buf, size_t count)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
struct w83781d_data *data = dev_get_drvdata(dev);
unsigned long min;
int nr = attr->index;
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, data->type);
reg = (w83781d_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));
w83781d_write_value(data, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV, reg);
/* w83781d and as99127f don't have extended divisor bits */
if (data->type != w83781d && data->type != as99127f) {
reg = (w83781d_read_value(data, W83781D_REG_VBAT)
& ~(1 << (5 + nr)))
| ((data->fan_div[nr] & 0x04) << (3 + nr));
w83781d_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]));
w83781d_write_value(data, W83781D_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 *da, char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
struct w83781d_data *data = w83781d_update_device(dev);
return sprintf(buf, "%d\n", (int)data->pwm[attr->index]);
}
static ssize_t
show_pwm2_enable(struct device *dev, struct device_attribute *da, char *buf)
{
struct w83781d_data *data = w83781d_update_device(dev);
return sprintf(buf, "%d\n", (int)data->pwm2_enable);
}
static ssize_t
store_pwm(struct device *dev, struct device_attribute *da, const char *buf,
size_t count)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
struct w83781d_data *data = dev_get_drvdata(dev);
int nr = attr->index;
u32 val;
val = simple_strtoul(buf, NULL, 10);
mutex_lock(&data->update_lock);
data->pwm[nr] = SENSORS_LIMIT(val, 0, 255);
w83781d_write_value(data, W83781D_REG_PWM[nr], data->pwm[nr]);
mutex_unlock(&data->update_lock);
return count;
}
static ssize_t
store_pwm2_enable(struct device *dev, struct device_attribute *da,
const char *buf, size_t count)
{
struct w83781d_data *data = dev_get_drvdata(dev);
u32 val, reg;
val = simple_strtoul(buf, NULL, 10);
mutex_lock(&data->update_lock);
switch (val) {
case 0:
case 1:
reg = w83781d_read_value(data, W83781D_REG_PWMCLK12);
w83781d_write_value(data, W83781D_REG_PWMCLK12,
(reg & 0xf7) | (val << 3));
reg = w83781d_read_value(data, W83781D_REG_BEEP_CONFIG);
w83781d_write_value(data, W83781D_REG_BEEP_CONFIG,
(reg & 0xef) | (!val << 4));
data->pwm2_enable = val;
break;
default:
mutex_unlock(&data->update_lock);
return -EINVAL;
}
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 SENSOR_DEVICE_ATTR(pwm4, S_IRUGO | S_IWUSR, show_pwm, store_pwm, 3);
/* only PWM2 can be enabled/disabled */
static DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR,
show_pwm2_enable, store_pwm2_enable);
static ssize_t
show_sensor(struct device *dev, struct device_attribute *da, char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
struct w83781d_data *data = w83781d_update_device(dev);
return sprintf(buf, "%d\n", (int)data->sens[attr->index]);
}
static ssize_t
store_sensor(struct device *dev, struct device_attribute *da,
const char *buf, size_t count)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
struct w83781d_data *data = dev_get_drvdata(dev);
int nr = attr->index;
u32 val, tmp;
val = simple_strtoul(buf, NULL, 10);
mutex_lock(&data->update_lock);
switch (val) {
case 1: /* PII/Celeron diode */
tmp = w83781d_read_value(data, W83781D_REG_SCFG1);
w83781d_write_value(data, W83781D_REG_SCFG1,
tmp | BIT_SCFG1[nr]);
tmp = w83781d_read_value(data, W83781D_REG_SCFG2);
w83781d_write_value(data, W83781D_REG_SCFG2,
tmp | BIT_SCFG2[nr]);
data->sens[nr] = val;
break;
case 2: /* 3904 */
tmp = w83781d_read_value(data, W83781D_REG_SCFG1);
w83781d_write_value(data, W83781D_REG_SCFG1,
tmp | BIT_SCFG1[nr]);
tmp = w83781d_read_value(data, W83781D_REG_SCFG2);
w83781d_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 = w83781d_read_value(data, W83781D_REG_SCFG1);
w83781d_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;
}
static SENSOR_DEVICE_ATTR(temp1_type, S_IRUGO | S_IWUSR,
show_sensor, store_sensor, 0);
static SENSOR_DEVICE_ATTR(temp2_type, S_IRUGO | S_IWUSR,
show_sensor, store_sensor, 1);
static SENSOR_DEVICE_ATTR(temp3_type, S_IRUGO | S_IWUSR,
show_sensor, store_sensor, 2);
/* Assumes that adapter is of I2C, not ISA variety.
* OTHERWISE DON'T CALL THIS
*/
static int
w83781d_detect_subclients(struct i2c_client *new_client)
{
int i, val1 = 0, id;
int err;
int address = new_client->addr;
unsigned short sc_addr[2];
struct i2c_adapter *adapter = new_client->adapter;
struct w83781d_data *data = i2c_get_clientdata(new_client);
enum chips kind = data->type;
id = i2c_adapter_id(adapter);
if (force_subclients[0] == id && force_subclients[1] == address) {
for (i = 2; i <= 3; i++) {
if (force_subclients[i] < 0x48 ||
force_subclients[i] > 0x4f) {
dev_err(&new_client->dev, "Invalid subclient "
"address %d; must be 0x48-0x4f\n",
force_subclients[i]);
err = -EINVAL;
goto ERROR_SC_1;
}
}
w83781d_write_value(data, W83781D_REG_I2C_SUBADDR,
(force_subclients[2] & 0x07) |
((force_subclients[3] & 0x07) << 4));
sc_addr[0] = force_subclients[2];
} else {
val1 = w83781d_read_value(data, W83781D_REG_I2C_SUBADDR);
sc_addr[0] = 0x48 + (val1 & 0x07);
}
if (kind != w83783s) {
if (force_subclients[0] == id &&
force_subclients[1] == address) {
sc_addr[1] = force_subclients[3];
} else {
sc_addr[1] = 0x48 + ((val1 >> 4) & 0x07);
}
if (sc_addr[0] == sc_addr[1]) {
dev_err(&new_client->dev,
"Duplicate addresses 0x%x for subclients.\n",
sc_addr[0]);
err = -EBUSY;
goto ERROR_SC_2;
}
}
for (i = 0; i <= 1; i++) {
data->lm75[i] = i2c_new_dummy(adapter, sc_addr[i]);
if (!data->lm75[i]) {
dev_err(&new_client->dev, "Subclient %d "
"registration at address 0x%x "
"failed.\n", i, sc_addr[i]);
err = -ENOMEM;
if (i == 1)
goto ERROR_SC_3;
goto ERROR_SC_2;
}
if (kind == w83783s)
break;
}
return 0;
/* Undo inits in case of errors */
ERROR_SC_3:
i2c_unregister_device(data->lm75[0]);
ERROR_SC_2:
ERROR_SC_1:
return err;
}
#define IN_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##_alarm.dev_attr.attr, \
&sensor_dev_attr_temp##X##_beep.dev_attr.attr
static struct attribute* w83781d_attributes[] = {
IN_UNIT_ATTRS(0),
IN_UNIT_ATTRS(2),
IN_UNIT_ATTRS(3),
IN_UNIT_ATTRS(4),
IN_UNIT_ATTRS(5),
IN_UNIT_ATTRS(6),
FAN_UNIT_ATTRS(1),
FAN_UNIT_ATTRS(2),
FAN_UNIT_ATTRS(3),
TEMP_UNIT_ATTRS(1),
TEMP_UNIT_ATTRS(2),
&dev_attr_cpu0_vid.attr,
&dev_attr_vrm.attr,
&dev_attr_alarms.attr,
&dev_attr_beep_mask.attr,
&sensor_dev_attr_beep_enable.dev_attr.attr,
NULL
};
static const struct attribute_group w83781d_group = {
.attrs = w83781d_attributes,
};
static struct attribute *w83781d_attributes_opt[] = {
IN_UNIT_ATTRS(1),
IN_UNIT_ATTRS(7),
IN_UNIT_ATTRS(8),
TEMP_UNIT_ATTRS(3),
&sensor_dev_attr_pwm1.dev_attr.attr,
&sensor_dev_attr_pwm2.dev_attr.attr,
&sensor_dev_attr_pwm3.dev_attr.attr,
&sensor_dev_attr_pwm4.dev_attr.attr,
&dev_attr_pwm2_enable.attr,
&sensor_dev_attr_temp1_type.dev_attr.attr,
&sensor_dev_attr_temp2_type.dev_attr.attr,
&sensor_dev_attr_temp3_type.dev_attr.attr,
NULL
};
static const struct attribute_group w83781d_group_opt = {
.attrs = w83781d_attributes_opt,
};
/* No clean up is done on error, it's up to the caller */
static int
w83781d_create_files(struct device *dev, int kind, int is_isa)
{
int err;
if ((err = sysfs_create_group(&dev->kobj, &w83781d_group)))
return err;
if (kind != w83783s) {
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)))
return err;
}
if (kind != as99127f && kind != w83781d && kind != w83783s) {
if ((err = device_create_file(dev,
&sensor_dev_attr_in7_input.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_in7_min.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_in7_max.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_in7_alarm.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_in7_beep.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_in8_input.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_in8_min.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_in8_max.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_in8_alarm.dev_attr))
|| (err = device_create_file(dev,
&sensor_dev_attr_in8_beep.dev_attr)))
return err;
}
if (kind != w83783s) {
if ((err = device_create_file(dev,
&sensor_dev_attr_temp3_input.dev_attr))