+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 -ENODEV;
+}
+
+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 ssize_t
+show_beep(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);
+ int nr = data->BEEP_BITS[sattr->index];
+
+ return sprintf(buf, "%u\n",
+ (unsigned int)((data->beeps >> nr) & 0x01));
+}
+
+static ssize_t
+store_beep(struct device *dev, struct device_attribute *attr, const char *buf,
+ size_t count)
+{
+ struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
+ struct nct6775_data *data = dev_get_drvdata(dev);
+ int nr = data->BEEP_BITS[sattr->index];
+ int regindex = nr >> 3;
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err < 0)
+ return err;
+ if (val > 1)
+ return -EINVAL;
+
+ mutex_lock(&data->update_lock);
+ if (val)
+ data->beeps |= (1ULL << nr);
+ else
+ data->beeps &= ~(1ULL << nr);
+ nct6775_write_value(data, data->REG_BEEP[regindex],
+ (data->beeps >> (regindex << 3)) & 0xff);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+static ssize_t
+show_temp_beep(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 beep = 0;
+ int nr;
+
+ /*
+ * For temperatures, there is no fixed mapping from registers to beep
+ * enable bits. Beep enable bits are determined by the temperature
+ * source mapping.
+ */
+ nr = find_temp_source(data, sattr->index, data->num_temp_beeps);
+ if (nr >= 0) {
+ int bit = data->BEEP_BITS[nr + TEMP_ALARM_BASE];
+
+ beep = (data->beeps >> bit) & 0x01;
+ }
+ return sprintf(buf, "%u\n", beep);
+}
+
+static ssize_t
+store_temp_beep(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
+ struct nct6775_data *data = dev_get_drvdata(dev);
+ int nr, bit, regindex;
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err < 0)
+ return err;
+ if (val > 1)
+ return -EINVAL;
+
+ nr = find_temp_source(data, sattr->index, data->num_temp_beeps);
+ if (nr < 0)
+ return nr;
+
+ bit = data->BEEP_BITS[nr + TEMP_ALARM_BASE];
+ regindex = bit >> 3;
+
+ mutex_lock(&data->update_lock);
+ if (val)
+ data->beeps |= (1ULL << bit);
+ else
+ data->beeps &= ~(1ULL << bit);
+ nct6775_write_value(data, data->REG_BEEP[regindex],
+ (data->beeps >> (regindex << 3)) & 0xff);
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+