#define REG_VOLTAGE_LOW 0x0f
#define REG_FANCOUNT_LOW 0x13
#define REG_START 0x21
-#define REG_MODE 0x22
+#define REG_MODE 0x22 /* 7.2.32 Mode Selection Register */
#define REG_PECI_ENABLE 0x23
#define REG_FAN_ENABLE 0x24
#define REG_VMON_ENABLE 0x25
+#define REG_PWM(x) (0x60 + (x))
+#define REG_SMARTFAN_EN(x) (0x64 + (x) / 2)
+#define SMARTFAN_EN_SHIFT(x) ((x) % 2 * 4)
#define REG_VENDOR_ID 0xfd
#define REG_CHIP_ID 0xfe
#define REG_VERSION_ID 0xff
struct mutex access_lock; /* for multi-byte read and write operations */
};
+static ssize_t show_temp_type(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct nct7802_data *data = dev_get_drvdata(dev);
+ struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
+ unsigned int mode;
+ int ret;
+
+ ret = regmap_read(data->regmap, REG_MODE, &mode);
+ if (ret < 0)
+ return ret;
+
+ return sprintf(buf, "%u\n", (mode >> (2 * sattr->index) & 3) + 2);
+}
+
+static ssize_t store_temp_type(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct nct7802_data *data = dev_get_drvdata(dev);
+ struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
+ unsigned int type;
+ int err;
+
+ err = kstrtouint(buf, 0, &type);
+ if (err < 0)
+ return err;
+ if (sattr->index == 2 && type != 4) /* RD3 */
+ return -EINVAL;
+ if (type < 3 || type > 4)
+ return -EINVAL;
+ err = regmap_update_bits(data->regmap, REG_MODE,
+ 3 << 2 * sattr->index, (type - 2) << 2 * sattr->index);
+ return err ? : count;
+}
+
+static ssize_t show_pwm_mode(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
+ struct nct7802_data *data = dev_get_drvdata(dev);
+ unsigned int regval;
+ int ret;
+
+ if (sattr->index > 1)
+ return sprintf(buf, "1\n");
+
+ ret = regmap_read(data->regmap, 0x5E, ®val);
+ if (ret < 0)
+ return ret;
+
+ return sprintf(buf, "%u\n", !(regval & (1 << sattr->index)));
+}
+
+static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr,
+ char *buf)
+{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+ struct nct7802_data *data = dev_get_drvdata(dev);
+ unsigned int val;
+ int ret;
+
+ if (!attr->index)
+ return sprintf(buf, "255\n");
+
+ ret = regmap_read(data->regmap, attr->index, &val);
+ if (ret < 0)
+ return ret;
+
+ return sprintf(buf, "%d\n", val);
+}
+
+static ssize_t store_pwm(struct device *dev, struct device_attribute *devattr,
+ const char *buf, size_t count)
+{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+ struct nct7802_data *data = dev_get_drvdata(dev);
+ int err;
+ u8 val;
+
+ err = kstrtou8(buf, 0, &val);
+ if (err < 0)
+ return err;
+
+ err = regmap_write(data->regmap, attr->index, val);
+ return err ? : count;
+}
+
+static ssize_t show_pwm_enable(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct nct7802_data *data = dev_get_drvdata(dev);
+ struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
+ unsigned int reg, enabled;
+ int ret;
+
+ ret = regmap_read(data->regmap, REG_SMARTFAN_EN(sattr->index), ®);
+ if (ret < 0)
+ return ret;
+ enabled = reg >> SMARTFAN_EN_SHIFT(sattr->index) & 1;
+ return sprintf(buf, "%u\n", enabled + 1);
+}
+
+static ssize_t store_pwm_enable(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct nct7802_data *data = dev_get_drvdata(dev);
+ struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
+ u8 val;
+ int ret;
+
+ ret = kstrtou8(buf, 0, &val);
+ if (ret < 0)
+ return ret;
+ if (val < 1 || val > 2)
+ return -EINVAL;
+ ret = regmap_update_bits(data->regmap, REG_SMARTFAN_EN(sattr->index),
+ 1 << SMARTFAN_EN_SHIFT(sattr->index),
+ (val - 1) << SMARTFAN_EN_SHIFT(sattr->index));
+ return ret ? : count;
+}
+
static int nct7802_read_temp(struct nct7802_data *data,
u8 reg_temp, u8 reg_temp_low, int *temp)
{
return err ? : count;
}
+static SENSOR_DEVICE_ATTR(temp1_type, S_IRUGO | S_IWUSR,
+ show_temp_type, store_temp_type, 0);
static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0x01,
REG_TEMP_LSB);
static SENSOR_DEVICE_ATTR_2(temp1_min, S_IRUGO | S_IWUSR, show_temp,
static SENSOR_DEVICE_ATTR_2(temp1_crit, S_IRUGO | S_IWUSR, show_temp,
store_temp, 0x3a, 0);
+static SENSOR_DEVICE_ATTR(temp2_type, S_IRUGO | S_IWUSR,
+ show_temp_type, store_temp_type, 1);
static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 0x02,
REG_TEMP_LSB);
static SENSOR_DEVICE_ATTR_2(temp2_min, S_IRUGO | S_IWUSR, show_temp,
static SENSOR_DEVICE_ATTR_2(temp2_crit, S_IRUGO | S_IWUSR, show_temp,
store_temp, 0x3b, 0);
+static SENSOR_DEVICE_ATTR(temp3_type, S_IRUGO | S_IWUSR,
+ show_temp_type, store_temp_type, 2);
static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 0x03,
REG_TEMP_LSB);
static SENSOR_DEVICE_ATTR_2(temp3_min, S_IRUGO | S_IWUSR, show_temp,
store_beep, 0x5c, 5);
static struct attribute *nct7802_temp_attrs[] = {
+ &sensor_dev_attr_temp1_type.dev_attr.attr,
&sensor_dev_attr_temp1_input.dev_attr.attr,
&sensor_dev_attr_temp1_min.dev_attr.attr,
&sensor_dev_attr_temp1_max.dev_attr.attr,
&sensor_dev_attr_temp1_fault.dev_attr.attr,
&sensor_dev_attr_temp1_beep.dev_attr.attr,
- &sensor_dev_attr_temp2_input.dev_attr.attr, /* 9 */
+ &sensor_dev_attr_temp2_type.dev_attr.attr, /* 10 */
+ &sensor_dev_attr_temp2_input.dev_attr.attr,
&sensor_dev_attr_temp2_min.dev_attr.attr,
&sensor_dev_attr_temp2_max.dev_attr.attr,
&sensor_dev_attr_temp2_crit.dev_attr.attr,
&sensor_dev_attr_temp2_fault.dev_attr.attr,
&sensor_dev_attr_temp2_beep.dev_attr.attr,
- &sensor_dev_attr_temp3_input.dev_attr.attr, /* 18 */
+ &sensor_dev_attr_temp3_type.dev_attr.attr, /* 20 */
+ &sensor_dev_attr_temp3_input.dev_attr.attr,
&sensor_dev_attr_temp3_min.dev_attr.attr,
&sensor_dev_attr_temp3_max.dev_attr.attr,
&sensor_dev_attr_temp3_crit.dev_attr.attr,
&sensor_dev_attr_temp3_fault.dev_attr.attr,
&sensor_dev_attr_temp3_beep.dev_attr.attr,
- &sensor_dev_attr_temp4_input.dev_attr.attr, /* 27 */
+ &sensor_dev_attr_temp4_input.dev_attr.attr, /* 30 */
&sensor_dev_attr_temp4_min.dev_attr.attr,
&sensor_dev_attr_temp4_max.dev_attr.attr,
&sensor_dev_attr_temp4_crit.dev_attr.attr,
&sensor_dev_attr_temp4_crit_alarm.dev_attr.attr,
&sensor_dev_attr_temp4_beep.dev_attr.attr,
- &sensor_dev_attr_temp5_input.dev_attr.attr, /* 35 */
+ &sensor_dev_attr_temp5_input.dev_attr.attr, /* 38 */
&sensor_dev_attr_temp5_min.dev_attr.attr,
&sensor_dev_attr_temp5_max.dev_attr.attr,
&sensor_dev_attr_temp5_crit.dev_attr.attr,
&sensor_dev_attr_temp5_crit_alarm.dev_attr.attr,
&sensor_dev_attr_temp5_beep.dev_attr.attr,
- &sensor_dev_attr_temp6_input.dev_attr.attr, /* 43 */
+ &sensor_dev_attr_temp6_input.dev_attr.attr, /* 46 */
&sensor_dev_attr_temp6_beep.dev_attr.attr,
NULL
if (err < 0)
return 0;
- if (index < 9 &&
+ if (index < 10 &&
(reg & 03) != 0x01 && (reg & 0x03) != 0x02) /* RD1 */
return 0;
- if (index >= 9 && index < 18 &&
+
+ if (index >= 10 && index < 20 &&
(reg & 0x0c) != 0x04 && (reg & 0x0c) != 0x08) /* RD2 */
return 0;
- if (index >= 18 && index < 27 && (reg & 0x30) != 0x20) /* RD3 */
+ if (index >= 20 && index < 30 && (reg & 0x30) != 0x20) /* RD3 */
return 0;
- if (index >= 27 && index < 35) /* local */
+
+ if (index >= 30 && index < 38) /* local */
return attr->mode;
err = regmap_read(data->regmap, REG_PECI_ENABLE, ®);
if (err < 0)
return 0;
- if (index >= 35 && index < 43 && !(reg & 0x01)) /* PECI 0 */
+ if (index >= 38 && index < 46 && !(reg & 0x01)) /* PECI 0 */
return 0;
- if (index >= 0x43 && (!(reg & 0x02))) /* PECI 1 */
+ if (index >= 0x46 && (!(reg & 0x02))) /* PECI 1 */
return 0;
return attr->mode;
static SENSOR_DEVICE_ATTR_2(fan3_beep, S_IRUGO | S_IWUSR, show_beep, store_beep,
0x5b, 2);
+/* 7.2.89 Fan Control Output Type */
+static SENSOR_DEVICE_ATTR(pwm1_mode, S_IRUGO, show_pwm_mode, NULL, 0);
+static SENSOR_DEVICE_ATTR(pwm2_mode, S_IRUGO, show_pwm_mode, NULL, 1);
+static SENSOR_DEVICE_ATTR(pwm3_mode, S_IRUGO, show_pwm_mode, NULL, 2);
+
+/* 7.2.91... Fan Control Output Value */
+static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm, store_pwm,
+ REG_PWM(0));
+static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm, store_pwm,
+ REG_PWM(1));
+static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm, store_pwm,
+ REG_PWM(2));
+
+/* 7.2.95... Temperature to Fan mapping Relationships Register */
+static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, show_pwm_enable,
+ store_pwm_enable, 0);
+static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR, show_pwm_enable,
+ store_pwm_enable, 1);
+static SENSOR_DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR, show_pwm_enable,
+ store_pwm_enable, 2);
+
static struct attribute *nct7802_fan_attrs[] = {
&sensor_dev_attr_fan1_input.dev_attr.attr,
&sensor_dev_attr_fan1_min.dev_attr.attr,
.is_visible = nct7802_fan_is_visible,
};
+static struct attribute *nct7802_pwm_attrs[] = {
+ &sensor_dev_attr_pwm1_enable.dev_attr.attr,
+ &sensor_dev_attr_pwm1_mode.dev_attr.attr,
+ &sensor_dev_attr_pwm1.dev_attr.attr,
+ &sensor_dev_attr_pwm2_enable.dev_attr.attr,
+ &sensor_dev_attr_pwm2_mode.dev_attr.attr,
+ &sensor_dev_attr_pwm2.dev_attr.attr,
+ &sensor_dev_attr_pwm3_enable.dev_attr.attr,
+ &sensor_dev_attr_pwm3_mode.dev_attr.attr,
+ &sensor_dev_attr_pwm3.dev_attr.attr,
+ NULL
+};
+
+static struct attribute_group nct7802_pwm_group = {
+ .attrs = nct7802_pwm_attrs,
+};
+
+/* 7.2.115... 0x80-0x83, 0x84 Temperature (X-axis) transition */
+static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x80, 0);
+static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x81, 0);
+static SENSOR_DEVICE_ATTR_2(pwm1_auto_point3_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x82, 0);
+static SENSOR_DEVICE_ATTR_2(pwm1_auto_point4_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x83, 0);
+static SENSOR_DEVICE_ATTR_2(pwm1_auto_point5_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x84, 0);
+
+/* 7.2.120... 0x85-0x88 PWM (Y-axis) transition */
+static SENSOR_DEVICE_ATTR(pwm1_auto_point1_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0x85);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point2_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0x86);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point3_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0x87);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point4_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0x88);
+static SENSOR_DEVICE_ATTR(pwm1_auto_point5_pwm, S_IRUGO, show_pwm, NULL, 0);
+
+/* 7.2.124 Table 2 X-axis Transition Point 1 Register */
+static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x90, 0);
+static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x91, 0);
+static SENSOR_DEVICE_ATTR_2(pwm2_auto_point3_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x92, 0);
+static SENSOR_DEVICE_ATTR_2(pwm2_auto_point4_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x93, 0);
+static SENSOR_DEVICE_ATTR_2(pwm2_auto_point5_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x94, 0);
+
+/* 7.2.129 Table 2 Y-axis Transition Point 1 Register */
+static SENSOR_DEVICE_ATTR(pwm2_auto_point1_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0x95);
+static SENSOR_DEVICE_ATTR(pwm2_auto_point2_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0x96);
+static SENSOR_DEVICE_ATTR(pwm2_auto_point3_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0x97);
+static SENSOR_DEVICE_ATTR(pwm2_auto_point4_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0x98);
+static SENSOR_DEVICE_ATTR(pwm2_auto_point5_pwm, S_IRUGO, show_pwm, NULL, 0);
+
+/* 7.2.133 Table 3 X-axis Transition Point 1 Register */
+static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0xA0, 0);
+static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0xA1, 0);
+static SENSOR_DEVICE_ATTR_2(pwm3_auto_point3_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0xA2, 0);
+static SENSOR_DEVICE_ATTR_2(pwm3_auto_point4_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0xA3, 0);
+static SENSOR_DEVICE_ATTR_2(pwm3_auto_point5_temp, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0xA4, 0);
+
+/* 7.2.138 Table 3 Y-axis Transition Point 1 Register */
+static SENSOR_DEVICE_ATTR(pwm3_auto_point1_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0xA5);
+static SENSOR_DEVICE_ATTR(pwm3_auto_point2_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0xA6);
+static SENSOR_DEVICE_ATTR(pwm3_auto_point3_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0xA7);
+static SENSOR_DEVICE_ATTR(pwm3_auto_point4_pwm, S_IRUGO | S_IWUSR,
+ show_pwm, store_pwm, 0xA8);
+static SENSOR_DEVICE_ATTR(pwm3_auto_point5_pwm, S_IRUGO, show_pwm, NULL, 0);
+
+static struct attribute *nct7802_auto_point_attrs[] = {
+ &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point5_temp.dev_attr.attr,
+
+ &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point5_pwm.dev_attr.attr,
+
+ &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point5_temp.dev_attr.attr,
+
+ &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point4_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point5_pwm.dev_attr.attr,
+
+ &sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point4_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point5_temp.dev_attr.attr,
+
+ &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point3_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point4_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point5_pwm.dev_attr.attr,
+
+ NULL
+};
+
+static struct attribute_group nct7802_auto_point_group = {
+ .attrs = nct7802_auto_point_attrs,
+};
+
static const struct attribute_group *nct7802_groups[] = {
&nct7802_temp_group,
&nct7802_in_group,
&nct7802_fan_group,
+ &nct7802_pwm_group,
+ &nct7802_auto_point_group,
NULL
};
static bool nct7802_regmap_is_volatile(struct device *dev, unsigned int reg)
{
- return reg != REG_BANK && reg <= 0x20;
+ return (reg != REG_BANK && reg <= 0x20) ||
+ (reg >= REG_PWM(0) && reg <= REG_PWM(2));
}
static const struct regmap_config nct7802_regmap_config = {
Code Review / kvmfornfv.git / blobdiff