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authorJean Delvare <khali@linux-fr.org>2007-06-24 11:21:02 +0200
committerMark M. Hoffman <mhoffman@lightlink.com>2007-07-19 14:22:18 -0400
commitda667365befb2846485b82c4e6c57729dd513fd2 (patch)
treec0aca26e0641661a59357b3cba5526e0c225dd99 /drivers/hwmon
parentd3130f0e30745b406af233897a27834eb5285f45 (diff)
hwmon/w83627ehf: Export the thermal sensor types
Add support for the w83627ehf thermal sensor types. I made them read-only, as the BIOS is supposed to set them up properly. This information makes it easier to find out which temperature channel corresponds to the CPU. Signed-off-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/w83627ehf.c24
1 files changed, 23 insertions, 1 deletions
diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c
index e87fcf87a6e2..a78d3c2623ba 100644
--- a/drivers/hwmon/w83627ehf.c
+++ b/drivers/hwmon/w83627ehf.c
@@ -272,6 +272,7 @@ struct w83627ehf_data {
u8 fan_min[5];
u8 fan_div[5];
u8 has_fan; /* some fan inputs can be disabled */
+ u8 temp_type[3];
s8 temp1;
s8 temp1_max;
s8 temp1_max_hyst;
@@ -846,6 +847,15 @@ store_##reg(struct device *dev, struct device_attribute *attr, \
store_temp_reg(OVER, temp_max);
store_temp_reg(HYST, temp_max_hyst);
+static ssize_t
+show_temp_type(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct w83627ehf_data *data = w83627ehf_update_device(dev);
+ struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
+ int nr = sensor_attr->index;
+ return sprintf(buf, "%d\n", (int)data->temp_type[nr]);
+}
+
static struct sensor_device_attribute sda_temp[] = {
SENSOR_ATTR(temp1_input, S_IRUGO, show_temp1, NULL, 0),
SENSOR_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 0),
@@ -865,6 +875,9 @@ static struct sensor_device_attribute sda_temp[] = {
SENSOR_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4),
SENSOR_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5),
SENSOR_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13),
+ SENSOR_ATTR(temp1_type, S_IRUGO, show_temp_type, NULL, 0),
+ SENSOR_ATTR(temp2_type, S_IRUGO, show_temp_type, NULL, 1),
+ SENSOR_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2),
};
#define show_pwm_reg(reg) \
@@ -1188,7 +1201,7 @@ static void w83627ehf_device_remove_files(struct device *dev)
static inline void __devinit w83627ehf_init_device(struct w83627ehf_data *data)
{
int i;
- u8 tmp;
+ u8 tmp, diode;
/* Start monitoring is needed */
tmp = w83627ehf_read_value(data, W83627EHF_REG_CONFIG);
@@ -1210,6 +1223,15 @@ static inline void __devinit w83627ehf_init_device(struct w83627ehf_data *data)
tmp = w83627ehf_read_value(data, W83627EHF_REG_VBAT);
if (!(tmp & 0x01))
w83627ehf_write_value(data, W83627EHF_REG_VBAT, tmp | 0x01);
+
+ /* Get thermal sensor types */
+ diode = w83627ehf_read_value(data, W83627EHF_REG_DIODE);
+ for (i = 0; i < 3; i++) {
+ if ((tmp & (0x02 << i)))
+ data->temp_type[i] = (diode & (0x10 << i)) ? 1 : 2;
+ else
+ data->temp_type[i] = 4; /* thermistor */
+ }
}
static int __devinit w83627ehf_probe(struct platform_device *pdev)