hwmon: (w83627ehf) add caseopen detection
Export caseopen alarm status into userspace for Winbond W83627* and Nuvoton NCT677[56] chips and implement alarm clear attribute. Second caseopen alarm on NCT6776 is also supported. Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
This commit is contained in:
Родитель
c3b92c8787
Коммит
363a12a499
|
@ -197,6 +197,9 @@ static const u16 W83627EHF_REG_TEMP_CONFIG[] = { 0, 0x152, 0x252, 0 };
|
|||
#define W83627EHF_REG_ALARM2 0x45A
|
||||
#define W83627EHF_REG_ALARM3 0x45B
|
||||
|
||||
#define W83627EHF_REG_CASEOPEN_DET 0x42 /* SMI STATUS #2 */
|
||||
#define W83627EHF_REG_CASEOPEN_CLR 0x46 /* SMI MASK #3 */
|
||||
|
||||
/* SmartFan registers */
|
||||
#define W83627EHF_REG_FAN_STEPUP_TIME 0x0f
|
||||
#define W83627EHF_REG_FAN_STEPDOWN_TIME 0x0e
|
||||
|
@ -469,6 +472,7 @@ struct w83627ehf_data {
|
|||
s16 temp_max[9];
|
||||
s16 temp_max_hyst[9];
|
||||
u32 alarms;
|
||||
u8 caseopen;
|
||||
|
||||
u8 pwm_mode[4]; /* 0->DC variable voltage, 1->PWM variable duty cycle */
|
||||
u8 pwm_enable[4]; /* 1->manual
|
||||
|
@ -874,6 +878,9 @@ static struct w83627ehf_data *w83627ehf_update_device(struct device *dev)
|
|||
(w83627ehf_read_value(data,
|
||||
W83627EHF_REG_ALARM3) << 16);
|
||||
|
||||
data->caseopen = w83627ehf_read_value(data,
|
||||
W83627EHF_REG_CASEOPEN_DET);
|
||||
|
||||
data->last_updated = jiffies;
|
||||
data->valid = 1;
|
||||
}
|
||||
|
@ -1655,6 +1662,48 @@ show_vid(struct device *dev, struct device_attribute *attr, char *buf)
|
|||
}
|
||||
static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
|
||||
|
||||
|
||||
/* Case open detection */
|
||||
|
||||
static ssize_t
|
||||
show_caseopen(struct device *dev, struct device_attribute *attr, char *buf)
|
||||
{
|
||||
struct w83627ehf_data *data = w83627ehf_update_device(dev);
|
||||
|
||||
return sprintf(buf, "%d\n",
|
||||
!!(data->caseopen & to_sensor_dev_attr_2(attr)->index));
|
||||
}
|
||||
|
||||
static ssize_t
|
||||
clear_caseopen(struct device *dev, struct device_attribute *attr,
|
||||
const char *buf, size_t count)
|
||||
{
|
||||
struct w83627ehf_data *data = dev_get_drvdata(dev);
|
||||
unsigned long val;
|
||||
u16 reg, mask;
|
||||
|
||||
if (strict_strtoul(buf, 10, &val) || val != 0)
|
||||
return -EINVAL;
|
||||
|
||||
mask = to_sensor_dev_attr_2(attr)->nr;
|
||||
|
||||
mutex_lock(&data->update_lock);
|
||||
reg = w83627ehf_read_value(data, W83627EHF_REG_CASEOPEN_CLR);
|
||||
w83627ehf_write_value(data, W83627EHF_REG_CASEOPEN_CLR, reg | mask);
|
||||
w83627ehf_write_value(data, W83627EHF_REG_CASEOPEN_CLR, reg & ~mask);
|
||||
data->valid = 0; /* Force cache refresh */
|
||||
mutex_unlock(&data->update_lock);
|
||||
|
||||
return count;
|
||||
}
|
||||
|
||||
static struct sensor_device_attribute_2 sda_caseopen[] = {
|
||||
SENSOR_ATTR_2(intrusion0_alarm, S_IWUSR | S_IRUGO, show_caseopen,
|
||||
clear_caseopen, 0x80, 0x10),
|
||||
SENSOR_ATTR_2(intrusion1_alarm, S_IWUSR | S_IRUGO, show_caseopen,
|
||||
clear_caseopen, 0x40, 0x40),
|
||||
};
|
||||
|
||||
/*
|
||||
* Driver and device management
|
||||
*/
|
||||
|
@ -1711,6 +1760,9 @@ static void w83627ehf_device_remove_files(struct device *dev)
|
|||
device_remove_file(dev, &sda_temp_type[i].dev_attr);
|
||||
}
|
||||
|
||||
device_remove_file(dev, &sda_caseopen[0].dev_attr);
|
||||
device_remove_file(dev, &sda_caseopen[1].dev_attr);
|
||||
|
||||
device_remove_file(dev, &dev_attr_name);
|
||||
device_remove_file(dev, &dev_attr_cpu0_vid);
|
||||
}
|
||||
|
@ -2269,6 +2321,16 @@ static int __devinit w83627ehf_probe(struct platform_device *pdev)
|
|||
goto exit_remove;
|
||||
}
|
||||
|
||||
err = device_create_file(dev, &sda_caseopen[0].dev_attr);
|
||||
if (err)
|
||||
goto exit_remove;
|
||||
|
||||
if (sio_data->kind == nct6776) {
|
||||
err = device_create_file(dev, &sda_caseopen[1].dev_attr);
|
||||
if (err)
|
||||
goto exit_remove;
|
||||
}
|
||||
|
||||
err = device_create_file(dev, &dev_attr_name);
|
||||
if (err)
|
||||
goto exit_remove;
|
||||
|
|
Загрузка…
Ссылка в новой задаче