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| author | Jean Delvare <khali@linux-fr.org> | 2007-06-24 11:21:02 +0200 |
|---|---|---|
| committer | Mark M. Hoffman <mhoffman@lightlink.com> | 2007-07-19 14:22:18 -0400 |
| commit | da667365befb2846485b82c4e6c57729dd513fd2 (patch) | |
| tree | c0aca26e0641661a59357b3cba5526e0c225dd99 /drivers/hwmon/w83627ehf.c | |
| parent | d3130f0e30745b406af233897a27834eb5285f45 (diff) | |
| download | lwn-da667365befb2846485b82c4e6c57729dd513fd2.tar.gz lwn-da667365befb2846485b82c4e6c57729dd513fd2.zip | |
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/w83627ehf.c')
| -rw-r--r-- | drivers/hwmon/w83627ehf.c | 24 |
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) |