mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-26 19:00:25 +00:00
[PATCH] I2C: lm90 uses new sysfs callbacks
I updated the lm90 hardware monitoring driver to take benefit of Yani Ioannou's new sysfs callback capabilities. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
parent
a0ef14837a
commit
30d7394b1a
1 changed files with 148 additions and 118 deletions
|
@ -1,7 +1,7 @@
|
|||
/*
|
||||
* lm90.c - Part of lm_sensors, Linux kernel modules for hardware
|
||||
* monitoring
|
||||
* Copyright (C) 2003-2004 Jean Delvare <khali@linux-fr.org>
|
||||
* Copyright (C) 2003-2005 Jean Delvare <khali@linux-fr.org>
|
||||
*
|
||||
* Based on the lm83 driver. The LM90 is a sensor chip made by National
|
||||
* Semiconductor. It reports up to two temperatures (its own plus up to
|
||||
|
@ -76,6 +76,7 @@
|
|||
#include <linux/jiffies.h>
|
||||
#include <linux/i2c.h>
|
||||
#include <linux/i2c-sensor.h>
|
||||
#include <linux/i2c-sysfs.h>
|
||||
|
||||
/*
|
||||
* Addresses to scan
|
||||
|
@ -205,9 +206,14 @@ struct lm90_data {
|
|||
int kind;
|
||||
|
||||
/* registers values */
|
||||
s8 temp_input1, temp_low1, temp_high1; /* local */
|
||||
s16 temp_input2, temp_low2, temp_high2; /* remote, combined */
|
||||
s8 temp_crit1, temp_crit2;
|
||||
s8 temp8[5]; /* 0: local input
|
||||
1: local low limit
|
||||
2: local high limit
|
||||
3: local critical limit
|
||||
4: remote critical limit */
|
||||
s16 temp11[3]; /* 0: remote input
|
||||
1: remote low limit
|
||||
2: remote high limit */
|
||||
u8 temp_hyst;
|
||||
u8 alarms; /* bitvector */
|
||||
};
|
||||
|
@ -216,75 +222,88 @@ struct lm90_data {
|
|||
* Sysfs stuff
|
||||
*/
|
||||
|
||||
#define show_temp(value, converter) \
|
||||
static ssize_t show_##value(struct device *dev, struct device_attribute *attr, char *buf) \
|
||||
{ \
|
||||
struct lm90_data *data = lm90_update_device(dev); \
|
||||
return sprintf(buf, "%d\n", converter(data->value)); \
|
||||
static ssize_t show_temp8(struct device *dev, struct device_attribute *devattr,
|
||||
char *buf)
|
||||
{
|
||||
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
|
||||
struct lm90_data *data = lm90_update_device(dev);
|
||||
return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp8[attr->index]));
|
||||
}
|
||||
show_temp(temp_input1, TEMP1_FROM_REG);
|
||||
show_temp(temp_input2, TEMP2_FROM_REG);
|
||||
show_temp(temp_low1, TEMP1_FROM_REG);
|
||||
show_temp(temp_low2, TEMP2_FROM_REG);
|
||||
show_temp(temp_high1, TEMP1_FROM_REG);
|
||||
show_temp(temp_high2, TEMP2_FROM_REG);
|
||||
show_temp(temp_crit1, TEMP1_FROM_REG);
|
||||
show_temp(temp_crit2, TEMP1_FROM_REG);
|
||||
|
||||
#define set_temp1(value, reg) \
|
||||
static ssize_t set_##value(struct device *dev, struct device_attribute *attr, const char *buf, \
|
||||
size_t count) \
|
||||
{ \
|
||||
struct i2c_client *client = to_i2c_client(dev); \
|
||||
struct lm90_data *data = i2c_get_clientdata(client); \
|
||||
long val = simple_strtol(buf, NULL, 10); \
|
||||
\
|
||||
down(&data->update_lock); \
|
||||
if (data->kind == adt7461) \
|
||||
data->value = TEMP1_TO_REG_ADT7461(val); \
|
||||
else \
|
||||
data->value = TEMP1_TO_REG(val); \
|
||||
i2c_smbus_write_byte_data(client, reg, data->value); \
|
||||
up(&data->update_lock); \
|
||||
return count; \
|
||||
}
|
||||
#define set_temp2(value, regh, regl) \
|
||||
static ssize_t set_##value(struct device *dev, struct device_attribute *attr, const char *buf, \
|
||||
size_t count) \
|
||||
{ \
|
||||
struct i2c_client *client = to_i2c_client(dev); \
|
||||
struct lm90_data *data = i2c_get_clientdata(client); \
|
||||
long val = simple_strtol(buf, NULL, 10); \
|
||||
\
|
||||
down(&data->update_lock); \
|
||||
if (data->kind == adt7461) \
|
||||
data->value = TEMP2_TO_REG_ADT7461(val); \
|
||||
else \
|
||||
data->value = TEMP2_TO_REG(val); \
|
||||
i2c_smbus_write_byte_data(client, regh, data->value >> 8); \
|
||||
i2c_smbus_write_byte_data(client, regl, data->value & 0xff); \
|
||||
up(&data->update_lock); \
|
||||
return count; \
|
||||
}
|
||||
set_temp1(temp_low1, LM90_REG_W_LOCAL_LOW);
|
||||
set_temp2(temp_low2, LM90_REG_W_REMOTE_LOWH, LM90_REG_W_REMOTE_LOWL);
|
||||
set_temp1(temp_high1, LM90_REG_W_LOCAL_HIGH);
|
||||
set_temp2(temp_high2, LM90_REG_W_REMOTE_HIGHH, LM90_REG_W_REMOTE_HIGHL);
|
||||
set_temp1(temp_crit1, LM90_REG_W_LOCAL_CRIT);
|
||||
set_temp1(temp_crit2, LM90_REG_W_REMOTE_CRIT);
|
||||
static ssize_t set_temp8(struct device *dev, struct device_attribute *devattr,
|
||||
const char *buf, size_t count)
|
||||
{
|
||||
static const u8 reg[4] = {
|
||||
LM90_REG_W_LOCAL_LOW,
|
||||
LM90_REG_W_LOCAL_HIGH,
|
||||
LM90_REG_W_LOCAL_CRIT,
|
||||
LM90_REG_W_REMOTE_CRIT,
|
||||
};
|
||||
|
||||
#define show_temp_hyst(value, basereg) \
|
||||
static ssize_t show_##value(struct device *dev, struct device_attribute *attr, char *buf) \
|
||||
{ \
|
||||
struct lm90_data *data = lm90_update_device(dev); \
|
||||
return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->basereg) \
|
||||
- TEMP1_FROM_REG(data->temp_hyst)); \
|
||||
}
|
||||
show_temp_hyst(temp_hyst1, temp_crit1);
|
||||
show_temp_hyst(temp_hyst2, temp_crit2);
|
||||
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
|
||||
struct i2c_client *client = to_i2c_client(dev);
|
||||
struct lm90_data *data = i2c_get_clientdata(client);
|
||||
long val = simple_strtol(buf, NULL, 10);
|
||||
int nr = attr->index;
|
||||
|
||||
static ssize_t set_temp_hyst1(struct device *dev, struct device_attribute *attr, const char *buf,
|
||||
size_t count)
|
||||
down(&data->update_lock);
|
||||
if (data->kind == adt7461)
|
||||
data->temp8[nr] = TEMP1_TO_REG_ADT7461(val);
|
||||
else
|
||||
data->temp8[nr] = TEMP1_TO_REG(val);
|
||||
i2c_smbus_write_byte_data(client, reg[nr - 1], data->temp8[nr]);
|
||||
up(&data->update_lock);
|
||||
return count;
|
||||
}
|
||||
|
||||
static ssize_t show_temp11(struct device *dev, struct device_attribute *devattr,
|
||||
char *buf)
|
||||
{
|
||||
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
|
||||
struct lm90_data *data = lm90_update_device(dev);
|
||||
return sprintf(buf, "%d\n", TEMP2_FROM_REG(data->temp11[attr->index]));
|
||||
}
|
||||
|
||||
static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr,
|
||||
const char *buf, size_t count)
|
||||
{
|
||||
static const u8 reg[4] = {
|
||||
LM90_REG_W_REMOTE_LOWH,
|
||||
LM90_REG_W_REMOTE_LOWL,
|
||||
LM90_REG_W_REMOTE_HIGHH,
|
||||
LM90_REG_W_REMOTE_HIGHL,
|
||||
};
|
||||
|
||||
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
|
||||
struct i2c_client *client = to_i2c_client(dev);
|
||||
struct lm90_data *data = i2c_get_clientdata(client);
|
||||
long val = simple_strtol(buf, NULL, 10);
|
||||
int nr = attr->index;
|
||||
|
||||
down(&data->update_lock);
|
||||
if (data->kind == adt7461)
|
||||
data->temp11[nr] = TEMP2_TO_REG_ADT7461(val);
|
||||
else
|
||||
data->temp11[nr] = TEMP2_TO_REG(val);
|
||||
i2c_smbus_write_byte_data(client, reg[(nr - 1) * 2],
|
||||
data->temp11[nr] >> 8);
|
||||
i2c_smbus_write_byte_data(client, reg[(nr - 1) * 2 + 1],
|
||||
data->temp11[nr] & 0xff);
|
||||
up(&data->update_lock);
|
||||
return count;
|
||||
}
|
||||
|
||||
static ssize_t show_temphyst(struct device *dev, struct device_attribute *devattr,
|
||||
char *buf)
|
||||
{
|
||||
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
|
||||
struct lm90_data *data = lm90_update_device(dev);
|
||||
return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp8[attr->index])
|
||||
- TEMP1_FROM_REG(data->temp_hyst));
|
||||
}
|
||||
|
||||
static ssize_t set_temphyst(struct device *dev, struct device_attribute *dummy,
|
||||
const char *buf, size_t count)
|
||||
{
|
||||
struct i2c_client *client = to_i2c_client(dev);
|
||||
struct lm90_data *data = i2c_get_clientdata(client);
|
||||
|
@ -292,36 +311,37 @@ static ssize_t set_temp_hyst1(struct device *dev, struct device_attribute *attr,
|
|||
long hyst;
|
||||
|
||||
down(&data->update_lock);
|
||||
hyst = TEMP1_FROM_REG(data->temp_crit1) - val;
|
||||
hyst = TEMP1_FROM_REG(data->temp8[3]) - val;
|
||||
i2c_smbus_write_byte_data(client, LM90_REG_W_TCRIT_HYST,
|
||||
HYST_TO_REG(hyst));
|
||||
up(&data->update_lock);
|
||||
return count;
|
||||
}
|
||||
|
||||
static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf)
|
||||
static ssize_t show_alarms(struct device *dev, struct device_attribute *dummy,
|
||||
char *buf)
|
||||
{
|
||||
struct lm90_data *data = lm90_update_device(dev);
|
||||
return sprintf(buf, "%d\n", data->alarms);
|
||||
}
|
||||
|
||||
static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp_input1, NULL);
|
||||
static DEVICE_ATTR(temp2_input, S_IRUGO, show_temp_input2, NULL);
|
||||
static DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp_low1,
|
||||
set_temp_low1);
|
||||
static DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp_low2,
|
||||
set_temp_low2);
|
||||
static DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_high1,
|
||||
set_temp_high1);
|
||||
static DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp_high2,
|
||||
set_temp_high2);
|
||||
static DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO, show_temp_crit1,
|
||||
set_temp_crit1);
|
||||
static DEVICE_ATTR(temp2_crit, S_IWUSR | S_IRUGO, show_temp_crit2,
|
||||
set_temp_crit2);
|
||||
static DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO, show_temp_hyst1,
|
||||
set_temp_hyst1);
|
||||
static DEVICE_ATTR(temp2_crit_hyst, S_IRUGO, show_temp_hyst2, NULL);
|
||||
static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp8, NULL, 0);
|
||||
static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp11, NULL, 0);
|
||||
static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp8,
|
||||
set_temp8, 1);
|
||||
static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp11,
|
||||
set_temp11, 1);
|
||||
static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp8,
|
||||
set_temp8, 2);
|
||||
static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp11,
|
||||
set_temp11, 2);
|
||||
static SENSOR_DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO, show_temp8,
|
||||
set_temp8, 3);
|
||||
static SENSOR_DEVICE_ATTR(temp2_crit, S_IWUSR | S_IRUGO, show_temp8,
|
||||
set_temp8, 4);
|
||||
static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO, show_temphyst,
|
||||
set_temphyst, 3);
|
||||
static SENSOR_DEVICE_ATTR(temp2_crit_hyst, S_IRUGO, show_temphyst, NULL, 4);
|
||||
static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
|
||||
|
||||
/*
|
||||
|
@ -480,16 +500,26 @@ static int lm90_detect(struct i2c_adapter *adapter, int address, int kind)
|
|||
lm90_init_client(new_client);
|
||||
|
||||
/* Register sysfs hooks */
|
||||
device_create_file(&new_client->dev, &dev_attr_temp1_input);
|
||||
device_create_file(&new_client->dev, &dev_attr_temp2_input);
|
||||
device_create_file(&new_client->dev, &dev_attr_temp1_min);
|
||||
device_create_file(&new_client->dev, &dev_attr_temp2_min);
|
||||
device_create_file(&new_client->dev, &dev_attr_temp1_max);
|
||||
device_create_file(&new_client->dev, &dev_attr_temp2_max);
|
||||
device_create_file(&new_client->dev, &dev_attr_temp1_crit);
|
||||
device_create_file(&new_client->dev, &dev_attr_temp2_crit);
|
||||
device_create_file(&new_client->dev, &dev_attr_temp1_crit_hyst);
|
||||
device_create_file(&new_client->dev, &dev_attr_temp2_crit_hyst);
|
||||
device_create_file(&new_client->dev,
|
||||
&sensor_dev_attr_temp1_input.dev_attr);
|
||||
device_create_file(&new_client->dev,
|
||||
&sensor_dev_attr_temp2_input.dev_attr);
|
||||
device_create_file(&new_client->dev,
|
||||
&sensor_dev_attr_temp1_min.dev_attr);
|
||||
device_create_file(&new_client->dev,
|
||||
&sensor_dev_attr_temp2_min.dev_attr);
|
||||
device_create_file(&new_client->dev,
|
||||
&sensor_dev_attr_temp1_max.dev_attr);
|
||||
device_create_file(&new_client->dev,
|
||||
&sensor_dev_attr_temp2_max.dev_attr);
|
||||
device_create_file(&new_client->dev,
|
||||
&sensor_dev_attr_temp1_crit.dev_attr);
|
||||
device_create_file(&new_client->dev,
|
||||
&sensor_dev_attr_temp2_crit.dev_attr);
|
||||
device_create_file(&new_client->dev,
|
||||
&sensor_dev_attr_temp1_crit_hyst.dev_attr);
|
||||
device_create_file(&new_client->dev,
|
||||
&sensor_dev_attr_temp2_crit_hyst.dev_attr);
|
||||
device_create_file(&new_client->dev, &dev_attr_alarms);
|
||||
|
||||
return 0;
|
||||
|
@ -540,16 +570,16 @@ static struct lm90_data *lm90_update_device(struct device *dev)
|
|||
u8 oldh, newh;
|
||||
|
||||
dev_dbg(&client->dev, "Updating lm90 data.\n");
|
||||
data->temp_input1 = i2c_smbus_read_byte_data(client,
|
||||
LM90_REG_R_LOCAL_TEMP);
|
||||
data->temp_high1 = i2c_smbus_read_byte_data(client,
|
||||
LM90_REG_R_LOCAL_HIGH);
|
||||
data->temp_low1 = i2c_smbus_read_byte_data(client,
|
||||
LM90_REG_R_LOCAL_LOW);
|
||||
data->temp_crit1 = i2c_smbus_read_byte_data(client,
|
||||
LM90_REG_R_LOCAL_CRIT);
|
||||
data->temp_crit2 = i2c_smbus_read_byte_data(client,
|
||||
LM90_REG_R_REMOTE_CRIT);
|
||||
data->temp8[0] = i2c_smbus_read_byte_data(client,
|
||||
LM90_REG_R_LOCAL_TEMP);
|
||||
data->temp8[1] = i2c_smbus_read_byte_data(client,
|
||||
LM90_REG_R_LOCAL_LOW);
|
||||
data->temp8[2] = i2c_smbus_read_byte_data(client,
|
||||
LM90_REG_R_LOCAL_HIGH);
|
||||
data->temp8[3] = i2c_smbus_read_byte_data(client,
|
||||
LM90_REG_R_LOCAL_CRIT);
|
||||
data->temp8[4] = i2c_smbus_read_byte_data(client,
|
||||
LM90_REG_R_REMOTE_CRIT);
|
||||
data->temp_hyst = i2c_smbus_read_byte_data(client,
|
||||
LM90_REG_R_TCRIT_HYST);
|
||||
|
||||
|
@ -569,13 +599,13 @@ static struct lm90_data *lm90_update_device(struct device *dev)
|
|||
*/
|
||||
oldh = i2c_smbus_read_byte_data(client,
|
||||
LM90_REG_R_REMOTE_TEMPH);
|
||||
data->temp_input2 = i2c_smbus_read_byte_data(client,
|
||||
LM90_REG_R_REMOTE_TEMPL);
|
||||
data->temp11[0] = i2c_smbus_read_byte_data(client,
|
||||
LM90_REG_R_REMOTE_TEMPL);
|
||||
newh = i2c_smbus_read_byte_data(client,
|
||||
LM90_REG_R_REMOTE_TEMPH);
|
||||
if (newh != oldh) {
|
||||
data->temp_input2 = i2c_smbus_read_byte_data(client,
|
||||
LM90_REG_R_REMOTE_TEMPL);
|
||||
data->temp11[0] = i2c_smbus_read_byte_data(client,
|
||||
LM90_REG_R_REMOTE_TEMPL);
|
||||
#ifdef DEBUG
|
||||
oldh = i2c_smbus_read_byte_data(client,
|
||||
LM90_REG_R_REMOTE_TEMPH);
|
||||
|
@ -585,16 +615,16 @@ static struct lm90_data *lm90_update_device(struct device *dev)
|
|||
"wrong.\n");
|
||||
#endif
|
||||
}
|
||||
data->temp_input2 |= (newh << 8);
|
||||
data->temp11[0] |= (newh << 8);
|
||||
|
||||
data->temp_high2 = (i2c_smbus_read_byte_data(client,
|
||||
data->temp11[1] = (i2c_smbus_read_byte_data(client,
|
||||
LM90_REG_R_REMOTE_LOWH) << 8) +
|
||||
i2c_smbus_read_byte_data(client,
|
||||
LM90_REG_R_REMOTE_LOWL);
|
||||
data->temp11[2] = (i2c_smbus_read_byte_data(client,
|
||||
LM90_REG_R_REMOTE_HIGHH) << 8) +
|
||||
i2c_smbus_read_byte_data(client,
|
||||
LM90_REG_R_REMOTE_HIGHL);
|
||||
data->temp_low2 = (i2c_smbus_read_byte_data(client,
|
||||
LM90_REG_R_REMOTE_LOWH) << 8) +
|
||||
i2c_smbus_read_byte_data(client,
|
||||
LM90_REG_R_REMOTE_LOWL);
|
||||
data->alarms = i2c_smbus_read_byte_data(client,
|
||||
LM90_REG_R_STATUS);
|
||||
|
||||
|
|
Loading…
Reference in a new issue