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hwmon: (thmc50) add individual alarm & fault files 

This patch adds individual alarm and fault files to
the thmc50 driver. These sysfs entries are required
for a new libsensors library.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
hifive-unleashed-5.1
Krzysztof Helt 2007-08-22 14:05:22 -04:00 committed by Mark M. Hoffman
parent 6f9703d0be
commit dcf3b5fb7f
1 changed files with 28 additions and 0 deletions
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28
drivers/hwmon/thmc50.c
View File

@ -46,6 +46,11 @@ I2C_CLIENT_MODULE_PARM(adm1022_temp3, "List of adapter,address pairs "
#define THMC50_REG_COMPANY_ID 0x3E
#define THMC50_REG_DIE_CODE 0x3F
#define THMC50_REG_ANALOG_OUT 0x19
/*
* We use mirror status register for reading alarms
* so ACPI can use the primary status register.
*/
#define THMC50_REG_INTR_MIRROR 0x4C
const static u8 THMC50_REG_TEMP[] = { 0x27, 0x26, 0x20 };
const static u8 THMC50_REG_TEMP_MIN[] = { 0x3A, 0x38, 0x2C };
@ -69,6 +74,7 @@ struct thmc50_data {
s8 temp_max[3];
s8 temp_min[3];
u8 analog_out;
u8 alarms;
};
static int thmc50_attach_adapter(struct i2c_adapter *adapter);
@ -180,6 +186,15 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
return count;
}
static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
char *buf)
{
int index = to_sensor_dev_attr(attr)->index;
struct thmc50_data *data = thmc50_update_device(dev);
return sprintf(buf, "%u\n", (data->alarms >> index) & 1);
}
#define temp_reg(offset) \
static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp, \
NULL, offset - 1); \
@ -192,6 +207,12 @@ temp_reg(1);
temp_reg(2);
temp_reg(3);
static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 0);
static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5);
static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 1);
static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_alarm, NULL, 7);
static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 2);
static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_analog_out,
set_analog_out, 0);
static SENSOR_DEVICE_ATTR(pwm1_mode, S_IRUGO, show_pwm_mode, NULL, 0);
@ -200,9 +221,12 @@ static struct attribute *thmc50_attributes[] = {
&sensor_dev_attr_temp1_max.dev_attr.attr,
&sensor_dev_attr_temp1_min.dev_attr.attr,
&sensor_dev_attr_temp1_input.dev_attr.attr,
&sensor_dev_attr_temp1_alarm.dev_attr.attr,
&sensor_dev_attr_temp2_max.dev_attr.attr,
&sensor_dev_attr_temp2_min.dev_attr.attr,
&sensor_dev_attr_temp2_input.dev_attr.attr,
&sensor_dev_attr_temp2_alarm.dev_attr.attr,
&sensor_dev_attr_temp2_fault.dev_attr.attr,
&sensor_dev_attr_pwm1.dev_attr.attr,
&sensor_dev_attr_pwm1_mode.dev_attr.attr,
NULL
@ -217,6 +241,8 @@ static struct attribute *adm1022_attributes[] = {
&sensor_dev_attr_temp3_max.dev_attr.attr,
&sensor_dev_attr_temp3_min.dev_attr.attr,
&sensor_dev_attr_temp3_input.dev_attr.attr,
&sensor_dev_attr_temp3_alarm.dev_attr.attr,
&sensor_dev_attr_temp3_fault.dev_attr.attr,
NULL
};
@ -414,6 +440,8 @@ static struct thmc50_data *thmc50_update_device(struct device *dev)
}
data->analog_out =
i2c_smbus_read_byte_data(client, THMC50_REG_ANALOG_OUT);
data->alarms =
i2c_smbus_read_byte_data(client, THMC50_REG_INTR_MIRROR);
data->last_updated = jiffies;
data->valid = 1;
}