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path: root/drivers/hwmon/nct6775.c
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Diffstat (limited to 'drivers/hwmon/nct6775.c')
-rw-r--r--drivers/hwmon/nct6775.c92
1 files changed, 64 insertions, 28 deletions
diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
index 04638aee9039..99cec1825420 100644
--- a/drivers/hwmon/nct6775.c
+++ b/drivers/hwmon/nct6775.c
@@ -199,7 +199,7 @@ static const s8 NCT6775_ALARM_BITS[] = {
0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */
17, -1, -1, -1, -1, -1, -1, /* in8..in14 */
-1, /* unused */
- 6, 7, 11, 10, 23, /* fan1..fan5 */
+ 6, 7, 11, -1, -1, /* fan1..fan5 */
-1, -1, -1, /* unused */
4, 5, 13, -1, -1, -1, /* temp1..temp6 */
12, -1 }; /* intrusion0, intrusion1 */
@@ -625,6 +625,7 @@ struct nct6775_data {
u8 has_fan_min; /* some fans don't have min register */
bool has_fan_div;
+ u8 num_temp_alarms; /* 2 or 3 */
u8 temp_fixed_num; /* 3 or 6 */
u8 temp_type[NUM_TEMP_FIXED];
s8 temp_offset[NUM_TEMP_FIXED];
@@ -1193,6 +1194,42 @@ show_alarm(struct device *dev, struct device_attribute *attr, char *buf)
(unsigned int)((data->alarms >> nr) & 0x01));
}
+static int find_temp_source(struct nct6775_data *data, int index, int count)
+{
+ int source = data->temp_src[index];
+ int nr;
+
+ for (nr = 0; nr < count; nr++) {
+ int src;
+
+ src = nct6775_read_value(data,
+ data->REG_TEMP_SOURCE[nr]) & 0x1f;
+ if (src == source)
+ return nr;
+ }
+ return -1;
+}
+
+static ssize_t
+show_temp_alarm(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
+ struct nct6775_data *data = nct6775_update_device(dev);
+ unsigned int alarm = 0;
+ int nr;
+
+ /*
+ * For temperatures, there is no fixed mapping from registers to alarm
+ * bits. Alarm bits are determined by the temperature source mapping.
+ */
+ nr = find_temp_source(data, sattr->index, data->num_temp_alarms);
+ if (nr >= 0) {
+ int bit = data->ALARM_BITS[nr + TEMP_ALARM_BASE];
+ alarm = (data->alarms >> bit) & 0x01;
+ }
+ return sprintf(buf, "%u\n", alarm);
+}
+
static SENSOR_DEVICE_ATTR_2(in0_input, S_IRUGO, show_in_reg, NULL, 0, 0);
static SENSOR_DEVICE_ATTR_2(in1_input, S_IRUGO, show_in_reg, NULL, 1, 0);
static SENSOR_DEVICE_ATTR_2(in2_input, S_IRUGO, show_in_reg, NULL, 2, 0);
@@ -1874,22 +1911,18 @@ static struct sensor_device_attribute sda_temp_type[] = {
};
static struct sensor_device_attribute sda_temp_alarm[] = {
- SENSOR_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL,
- TEMP_ALARM_BASE),
- SENSOR_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL,
- TEMP_ALARM_BASE + 1),
- SENSOR_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL,
- TEMP_ALARM_BASE + 2),
- SENSOR_ATTR(temp4_alarm, S_IRUGO, show_alarm, NULL,
- TEMP_ALARM_BASE + 3),
- SENSOR_ATTR(temp5_alarm, S_IRUGO, show_alarm, NULL,
- TEMP_ALARM_BASE + 4),
- SENSOR_ATTR(temp6_alarm, S_IRUGO, show_alarm, NULL,
- TEMP_ALARM_BASE + 5),
+ SENSOR_ATTR(temp1_alarm, S_IRUGO, show_temp_alarm, NULL, 0),
+ SENSOR_ATTR(temp2_alarm, S_IRUGO, show_temp_alarm, NULL, 1),
+ SENSOR_ATTR(temp3_alarm, S_IRUGO, show_temp_alarm, NULL, 2),
+ SENSOR_ATTR(temp4_alarm, S_IRUGO, show_temp_alarm, NULL, 3),
+ SENSOR_ATTR(temp5_alarm, S_IRUGO, show_temp_alarm, NULL, 4),
+ SENSOR_ATTR(temp6_alarm, S_IRUGO, show_temp_alarm, NULL, 5),
+ SENSOR_ATTR(temp7_alarm, S_IRUGO, show_temp_alarm, NULL, 6),
+ SENSOR_ATTR(temp8_alarm, S_IRUGO, show_temp_alarm, NULL, 7),
+ SENSOR_ATTR(temp9_alarm, S_IRUGO, show_temp_alarm, NULL, 8),
+ SENSOR_ATTR(temp10_alarm, S_IRUGO, show_temp_alarm, NULL, 9),
};
-#define NUM_TEMP_ALARM ARRAY_SIZE(sda_temp_alarm)
-
static ssize_t
show_pwm_mode(struct device *dev, struct device_attribute *attr, char *buf)
{
@@ -3215,13 +3248,11 @@ static void nct6775_device_remove_files(struct device *dev)
device_remove_file(dev, &sda_temp_max[i].dev_attr);
device_remove_file(dev, &sda_temp_max_hyst[i].dev_attr);
device_remove_file(dev, &sda_temp_crit[i].dev_attr);
+ device_remove_file(dev, &sda_temp_alarm[i].dev_attr);
if (!(data->have_temp_fixed & (1 << i)))
continue;
device_remove_file(dev, &sda_temp_type[i].dev_attr);
device_remove_file(dev, &sda_temp_offset[i].dev_attr);
- if (i >= NUM_TEMP_ALARM)
- continue;
- device_remove_file(dev, &sda_temp_alarm[i].dev_attr);
}
device_remove_file(dev, &sda_caseopen[0].dev_attr);
@@ -3419,6 +3450,7 @@ static int nct6775_probe(struct platform_device *pdev)
data->auto_pwm_num = 6;
data->has_fan_div = true;
data->temp_fixed_num = 3;
+ data->num_temp_alarms = 3;
data->ALARM_BITS = NCT6775_ALARM_BITS;
@@ -3483,6 +3515,7 @@ static int nct6775_probe(struct platform_device *pdev)
data->auto_pwm_num = 4;
data->has_fan_div = false;
data->temp_fixed_num = 3;
+ data->num_temp_alarms = 3;
data->ALARM_BITS = NCT6776_ALARM_BITS;
@@ -3547,6 +3580,7 @@ static int nct6775_probe(struct platform_device *pdev)
data->auto_pwm_num = 4;
data->has_fan_div = false;
data->temp_fixed_num = 6;
+ data->num_temp_alarms = 2;
data->ALARM_BITS = NCT6779_ALARM_BITS;
@@ -3843,10 +3877,12 @@ static int nct6775_probe(struct platform_device *pdev)
&sda_fan_input[i].dev_attr);
if (err)
goto exit_remove;
- err = device_create_file(dev,
- &sda_fan_alarm[i].dev_attr);
- if (err)
- goto exit_remove;
+ if (data->ALARM_BITS[FAN_ALARM_BASE + i] >= 0) {
+ err = device_create_file(dev,
+ &sda_fan_alarm[i].dev_attr);
+ if (err)
+ goto exit_remove;
+ }
if (data->kind != nct6776 &&
data->kind != nct6779) {
err = device_create_file(dev,
@@ -3897,6 +3933,12 @@ static int nct6775_probe(struct platform_device *pdev)
if (err)
goto exit_remove;
}
+ if (find_temp_source(data, i, data->num_temp_alarms) >= 0) {
+ err = device_create_file(dev,
+ &sda_temp_alarm[i].dev_attr);
+ if (err)
+ goto exit_remove;
+ }
if (!(data->have_temp_fixed & (1 << i)))
continue;
err = device_create_file(dev, &sda_temp_type[i].dev_attr);
@@ -3905,12 +3947,6 @@ static int nct6775_probe(struct platform_device *pdev)
err = device_create_file(dev, &sda_temp_offset[i].dev_attr);
if (err)
goto exit_remove;
- if (i >= NUM_TEMP_ALARM ||
- data->ALARM_BITS[TEMP_ALARM_BASE + i] < 0)
- continue;
- err = device_create_file(dev, &sda_temp_alarm[i].dev_attr);
- if (err)
- goto exit_remove;
}
for (i = 0; i < ARRAY_SIZE(sda_caseopen); i++) {
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