diff options
| author |   Krzysztof Helt <krzysztof.h1@wp.pl> | 2007-08-22 14:05:22 -0400 |
|---|---|---|
| committer |   Mark M. Hoffman <mhoffman@lightlink.com> | 2007-10-09 22:56:29 -0400 |
| commit | dcf3b5fb7fb6e1b56bfaf705e665b04870213768 (patch) | |
| tree | 3717c0f9b955dda6609784bad6ac587d5d333dca /drivers/hwmon | |
| parent | hwmon: add support for adt7470 (diff) | |
| download | linux-dev-dcf3b5fb7fb6e1b56bfaf705e665b04870213768.tar.xz linux-dev-dcf3b5fb7fb6e1b56bfaf705e665b04870213768.zip | |
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>
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/thmc50.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/hwmon/thmc50.c b/drivers/hwmon/thmc50.c index 9395b52d9b99..c920f394a5c2 100644 --- a/drivers/hwmon/thmc50.c +++ b/drivers/hwmon/thmc50.c @@ -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; } |