linux-imx
Public
Source
committed cbf6cb2b7ee100
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data->next_update = jiffies + HZ + HZ / 2;102
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data->valid = 1;103
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}104
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mutex_unlock(&data->lock);106
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return data;108
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}109
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static ssize_t show_temp_input(struct device *dev,110
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static ssize_t temp_input_show(struct device *dev,111
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struct device_attribute *attr, char *buf)112
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{113
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struct ad7414_data *data = ad7414_update_device(dev);114
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return sprintf(buf, "%d\n", ad7414_temp_from_reg(data->temp_input));115
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}116
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static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp_input, NULL, 0);116
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static SENSOR_DEVICE_ATTR_RO(temp1_input, temp_input, 0);117
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static ssize_t show_max_min(struct device *dev, struct device_attribute *attr,119
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char *buf)118
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static ssize_t max_min_show(struct device *dev, struct device_attribute *attr,119
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char *buf)120
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{121
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int index = to_sensor_dev_attr(attr)->index;122
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struct ad7414_data *data = ad7414_update_device(dev);123
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return sprintf(buf, "%d\n", data->temps[index] * 1000);124
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}125
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static ssize_t set_max_min(struct device *dev,127
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struct device_attribute *attr,128
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const char *buf, size_t count)126
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static ssize_t max_min_store(struct device *dev,127
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struct device_attribute *attr, const char *buf,128
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size_t count)129
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{130
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struct ad7414_data *data = dev_get_drvdata(dev);131
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struct i2c_client *client = data->client;132
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int index = to_sensor_dev_attr(attr)->index;133
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u8 reg = AD7414_REG_LIMIT[index];134
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long temp;135
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int ret = kstrtol(buf, 10, &temp);136
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if (ret < 0)138
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return ret;140
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temp = clamp_val(temp, -40000, 85000);141
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temp = (temp + (temp < 0 ? -500 : 500)) / 1000;142
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mutex_lock(&data->lock);144
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data->temps[index] = temp;145
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ad7414_write(client, reg, temp);146
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mutex_unlock(&data->lock);147
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return count;148
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}149
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static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO,151
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show_max_min, set_max_min, 0);152
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static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO,153
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show_max_min, set_max_min, 1);150
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static SENSOR_DEVICE_ATTR_RW(temp1_max, max_min, 0);151
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static SENSOR_DEVICE_ATTR_RW(temp1_min, max_min, 1);154
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static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,153
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static ssize_t alarm_show(struct device *dev, struct device_attribute *attr,156
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char *buf)157
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{158
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int bitnr = to_sensor_dev_attr(attr)->index;159
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struct ad7414_data *data = ad7414_update_device(dev);160
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int value = (data->temp_input >> bitnr) & 1;161
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return sprintf(buf, "%d\n", value);162
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}163
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static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_alarm, NULL, 3);165
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static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 4);162
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static SENSOR_DEVICE_ATTR_RO(temp1_min_alarm, alarm, 3);163
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static SENSOR_DEVICE_ATTR_RO(temp1_max_alarm, alarm, 4);166
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static struct attribute *ad7414_attrs[] = {168
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&sensor_dev_attr_temp1_input.dev_attr.attr,169
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&sensor_dev_attr_temp1_max.dev_attr.attr,170
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&sensor_dev_attr_temp1_min.dev_attr.attr,171
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&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,172
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&sensor_dev_attr_temp1_min_alarm.dev_attr.attr,173
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NULL174
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};175
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