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-rw-r--r--drivers/hwmon/adm1031.c477
1 files changed, 308 insertions, 169 deletions
diff --git a/drivers/hwmon/adm1031.c b/drivers/hwmon/adm1031.c
index 2bffcab7dc9..51c1a5a165a 100644
--- a/drivers/hwmon/adm1031.c
+++ b/drivers/hwmon/adm1031.c
@@ -1,25 +1,25 @@
/*
- adm1031.c - Part of lm_sensors, Linux kernel modules for hardware
- monitoring
- Based on lm75.c and lm85.c
- Supports adm1030 / adm1031
- Copyright (C) 2004 Alexandre d'Alton <alex@alexdalton.org>
- Reworked by Jean Delvare <khali@linux-fr.org>
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
+ * adm1031.c - Part of lm_sensors, Linux kernel modules for hardware
+ * monitoring
+ * Based on lm75.c and lm85.c
+ * Supports adm1030 / adm1031
+ * Copyright (C) 2004 Alexandre d'Alton <alex@alexdalton.org>
+ * Reworked by Jean Delvare <jdelvare@suse.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
#include <linux/module.h>
#include <linux/init.h>
@@ -36,7 +36,9 @@
#define ADM1031_REG_FAN_DIV(nr) (0x20 + (nr))
#define ADM1031_REG_PWM (0x22)
#define ADM1031_REG_FAN_MIN(nr) (0x10 + (nr))
+#define ADM1031_REG_FAN_FILTER (0x23)
+#define ADM1031_REG_TEMP_OFFSET(nr) (0x0d + (nr))
#define ADM1031_REG_TEMP_MAX(nr) (0x14 + 4 * (nr))
#define ADM1031_REG_TEMP_MIN(nr) (0x15 + 4 * (nr))
#define ADM1031_REG_TEMP_CRIT(nr) (0x16 + 4 * (nr))
@@ -60,23 +62,26 @@
#define ADM1031_CONF2_TACH2_ENABLE 0x08
#define ADM1031_CONF2_TEMP_ENABLE(chan) (0x10 << (chan))
+#define ADM1031_UPDATE_RATE_MASK 0x1c
+#define ADM1031_UPDATE_RATE_SHIFT 2
+
/* Addresses to scan */
static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
-/* Insmod parameters */
-I2C_CLIENT_INSMOD_2(adm1030, adm1031);
+enum chips { adm1030, adm1031 };
typedef u8 auto_chan_table_t[8][2];
/* Each client has this additional data */
struct adm1031_data {
- struct i2c_client client;
struct device *hwmon_dev;
struct mutex update_lock;
int chip_type;
char valid; /* !=0 if following fields are valid */
unsigned long last_updated; /* In jiffies */
- /* The chan_select_table contains the possible configurations for
+ unsigned int update_interval; /* In milliseconds */
+ /*
+ * The chan_select_table contains the possible configurations for
* auto fan control.
*/
const auto_chan_table_t *chan_select_table;
@@ -94,24 +99,38 @@ struct adm1031_data {
u8 auto_temp_min[3];
u8 auto_temp_off[3];
u8 auto_temp_max[3];
+ s8 temp_offset[3];
s8 temp_min[3];
s8 temp_max[3];
s8 temp_crit[3];
};
-static int adm1031_attach_adapter(struct i2c_adapter *adapter);
-static int adm1031_detect(struct i2c_adapter *adapter, int address, int kind);
+static int adm1031_probe(struct i2c_client *client,
+ const struct i2c_device_id *id);
+static int adm1031_detect(struct i2c_client *client,
+ struct i2c_board_info *info);
static void adm1031_init_client(struct i2c_client *client);
-static int adm1031_detach_client(struct i2c_client *client);
+static int adm1031_remove(struct i2c_client *client);
static struct adm1031_data *adm1031_update_device(struct device *dev);
+static const struct i2c_device_id adm1031_id[] = {
+ { "adm1030", adm1030 },
+ { "adm1031", adm1031 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, adm1031_id);
+
/* This is the driver that will be inserted */
static struct i2c_driver adm1031_driver = {
+ .class = I2C_CLASS_HWMON,
.driver = {
.name = "adm1031",
},
- .attach_adapter = adm1031_attach_adapter,
- .detach_client = adm1031_detach_client,
+ .probe = adm1031_probe,
+ .remove = adm1031_remove,
+ .id_table = adm1031_id,
+ .detect = adm1031_detect,
+ .address_list = normal_i2c,
};
static inline u8 adm1031_read_value(struct i2c_client *client, u8 reg)
@@ -133,18 +152,23 @@ adm1031_write_value(struct i2c_client *client, u8 reg, unsigned int value)
#define TEMP_FROM_REG_EXT(val, ext) (TEMP_FROM_REG(val) + (ext) * 125)
-#define FAN_FROM_REG(reg, div) ((reg) ? (11250 * 60) / ((reg) * (div)) : 0)
+#define TEMP_OFFSET_TO_REG(val) (TEMP_TO_REG(val) & 0x8f)
+#define TEMP_OFFSET_FROM_REG(val) TEMP_FROM_REG((val) < 0 ? \
+ (val) | 0x70 : (val))
+
+#define FAN_FROM_REG(reg, div) ((reg) ? \
+ (11250 * 60) / ((reg) * (div)) : 0)
static int FAN_TO_REG(int reg, int div)
{
int tmp;
- tmp = FAN_FROM_REG(SENSORS_LIMIT(reg, 0, 65535), div);
+ tmp = FAN_FROM_REG(clamp_val(reg, 0, 65535), div);
return tmp > 255 ? 255 : tmp;
}
#define FAN_DIV_FROM_REG(reg) (1<<(((reg)&0xc0)>>6))
-#define PWM_TO_REG(val) (SENSORS_LIMIT((val), 0, 255) >> 4)
+#define PWM_TO_REG(val) (clamp_val((val), 0, 255) >> 4)
#define PWM_FROM_REG(val) ((val) << 4)
#define FAN_CHAN_FROM_REG(reg) (((reg) >> 5) & 7)
@@ -152,8 +176,8 @@ static int FAN_TO_REG(int reg, int div)
(((reg) & 0x1F) | (((val) << 5) & 0xe0))
#define AUTO_TEMP_MIN_TO_REG(val, reg) \
- ((((val)/500) & 0xf8)|((reg) & 0x7))
-#define AUTO_TEMP_RANGE_FROM_REG(reg) (5000 * (1<< ((reg)&0x7)))
+ ((((val) / 500) & 0xf8) | ((reg) & 0x7))
+#define AUTO_TEMP_RANGE_FROM_REG(reg) (5000 * (1 << ((reg) & 0x7)))
#define AUTO_TEMP_MIN_FROM_REG(reg) (1000 * ((((reg) >> 3) & 0x1f) << 2))
#define AUTO_TEMP_MIN_FROM_REG_DEG(reg) ((((reg) >> 3) & 0x1f) << 2)
@@ -180,9 +204,10 @@ static int AUTO_TEMP_MAX_TO_REG(int val, int reg, int pwm)
/* FAN auto control */
#define GET_FAN_AUTO_BITFIELD(data, idx) \
- (*(data)->chan_select_table)[FAN_CHAN_FROM_REG((data)->conf1)][idx%2]
+ (*(data)->chan_select_table)[FAN_CHAN_FROM_REG((data)->conf1)][idx % 2]
-/* The tables below contains the possible values for the auto fan
+/*
+ * The tables below contains the possible values for the auto fan
* control bitfields. the index in the table is the register value.
* MSb is the auto fan control enable bit, so the four first entries
* in the table disables auto fan control when both bitfields are zero.
@@ -203,22 +228,20 @@ static const auto_chan_table_t auto_channel_select_table_adm1030 = {
{ 3 /* 0b11 */ , 0 },
};
-/* That function checks if a bitfield is valid and returns the other bitfield
+/*
+ * That function checks if a bitfield is valid and returns the other bitfield
* nearest match if no exact match where found.
*/
static int
-get_fan_auto_nearest(struct adm1031_data *data,
- int chan, u8 val, u8 reg, u8 * new_reg)
+get_fan_auto_nearest(struct adm1031_data *data, int chan, u8 val, u8 reg)
{
int i;
int first_match = -1, exact_match = -1;
u8 other_reg_val =
(*data->chan_select_table)[FAN_CHAN_FROM_REG(reg)][chan ? 0 : 1];
- if (val == 0) {
- *new_reg = 0;
+ if (val == 0)
return 0;
- }
for (i = 0; i < 8; i++) {
if ((val == (*data->chan_select_table)[i][chan]) &&
@@ -229,21 +252,20 @@ get_fan_auto_nearest(struct adm1031_data *data,
break;
} else if (val == (*data->chan_select_table)[i][chan] &&
first_match == -1) {
- /* Save the first match in case of an exact match has
+ /*
+ * Save the first match in case of an exact match has
* not been found
*/
first_match = i;
}
}
- if (exact_match >= 0) {
- *new_reg = exact_match;
- } else if (first_match >= 0) {
- *new_reg = first_match;
- } else {
- return -EINVAL;
- }
- return 0;
+ if (exact_match >= 0)
+ return exact_match;
+ else if (first_match >= 0)
+ return first_match;
+
+ return -EINVAL;
}
static ssize_t show_fan_auto_channel(struct device *dev,
@@ -261,26 +283,34 @@ set_fan_auto_channel(struct device *dev, struct device_attribute *attr,
struct i2c_client *client = to_i2c_client(dev);
struct adm1031_data *data = i2c_get_clientdata(client);
int nr = to_sensor_dev_attr(attr)->index;
- int val = simple_strtol(buf, NULL, 10);
+ long val;
u8 reg;
int ret;
u8 old_fan_mode;
+ ret = kstrtol(buf, 10, &val);
+ if (ret)
+ return ret;
+
old_fan_mode = data->conf1;
mutex_lock(&data->update_lock);
- if ((ret = get_fan_auto_nearest(data, nr, val, data->conf1, &reg))) {
+ ret = get_fan_auto_nearest(data, nr, val, data->conf1);
+ if (ret < 0) {
mutex_unlock(&data->update_lock);
return ret;
}
+ reg = ret;
data->conf1 = FAN_CHAN_TO_REG(reg, data->conf1);
if ((data->conf1 & ADM1031_CONF1_AUTO_MODE) ^
(old_fan_mode & ADM1031_CONF1_AUTO_MODE)) {
- if (data->conf1 & ADM1031_CONF1_AUTO_MODE){
- /* Switch to Auto Fan Mode
+ if (data->conf1 & ADM1031_CONF1_AUTO_MODE) {
+ /*
+ * Switch to Auto Fan Mode
* Save PWM registers
- * Set PWM registers to 33% Both */
+ * Set PWM registers to 33% Both
+ */
data->old_pwm[0] = data->pwm[0];
data->old_pwm[1] = data->pwm[1];
adm1031_write_value(client, ADM1031_REG_PWM, 0x55);
@@ -328,8 +358,14 @@ set_auto_temp_min(struct device *dev, struct device_attribute *attr,
struct i2c_client *client = to_i2c_client(dev);
struct adm1031_data *data = i2c_get_clientdata(client);
int nr = to_sensor_dev_attr(attr)->index;
- int val = simple_strtol(buf, NULL, 10);
+ long val;
+ int ret;
+
+ ret = kstrtol(buf, 10, &val);
+ if (ret)
+ return ret;
+ val = clamp_val(val, 0, 127000);
mutex_lock(&data->update_lock);
data->auto_temp[nr] = AUTO_TEMP_MIN_TO_REG(val, data->auto_temp[nr]);
adm1031_write_value(client, ADM1031_REG_AUTO_TEMP(nr),
@@ -352,10 +388,17 @@ set_auto_temp_max(struct device *dev, struct device_attribute *attr,
struct i2c_client *client = to_i2c_client(dev);
struct adm1031_data *data = i2c_get_clientdata(client);
int nr = to_sensor_dev_attr(attr)->index;
- int val = simple_strtol(buf, NULL, 10);
+ long val;
+ int ret;
+
+ ret = kstrtol(buf, 10, &val);
+ if (ret)
+ return ret;
+ val = clamp_val(val, 0, 127000);
mutex_lock(&data->update_lock);
- data->temp_max[nr] = AUTO_TEMP_MAX_TO_REG(val, data->auto_temp[nr], data->pwm[nr]);
+ data->temp_max[nr] = AUTO_TEMP_MAX_TO_REG(val, data->auto_temp[nr],
+ data->pwm[nr]);
adm1031_write_value(client, ADM1031_REG_AUTO_TEMP(nr),
data->temp_max[nr]);
mutex_unlock(&data->update_lock);
@@ -388,8 +431,12 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
struct i2c_client *client = to_i2c_client(dev);
struct adm1031_data *data = i2c_get_clientdata(client);
int nr = to_sensor_dev_attr(attr)->index;
- int val = simple_strtol(buf, NULL, 10);
- int reg;
+ long val;
+ int ret, reg;
+
+ ret = kstrtol(buf, 10, &val);
+ if (ret)
+ return ret;
mutex_lock(&data->update_lock);
if ((data->conf1 & ADM1031_CONF1_AUTO_MODE) &&
@@ -427,9 +474,13 @@ static int trust_fan_readings(struct adm1031_data *data, int chan)
if (data->conf1 & ADM1031_CONF1_AUTO_MODE) {
switch (data->conf1 & 0x60) {
- case 0x00: /* remote temp1 controls fan1 remote temp2 controls fan2 */
+ case 0x00:
+ /*
+ * remote temp1 controls fan1,
+ * remote temp2 controls fan2
+ */
res = data->temp[chan+1] >=
- AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[chan+1]);
+ AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[chan+1]);
break;
case 0x20: /* remote temp1 controls both fans */
res =
@@ -493,7 +544,12 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
struct i2c_client *client = to_i2c_client(dev);
struct adm1031_data *data = i2c_get_clientdata(client);
int nr = to_sensor_dev_attr(attr)->index;
- int val = simple_strtol(buf, NULL, 10);
+ long val;
+ int ret;
+
+ ret = kstrtol(buf, 10, &val);
+ if (ret)
+ return ret;
mutex_lock(&data->update_lock);
if (val) {
@@ -512,10 +568,15 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
struct i2c_client *client = to_i2c_client(dev);
struct adm1031_data *data = i2c_get_clientdata(client);
int nr = to_sensor_dev_attr(attr)->index;
- int val = simple_strtol(buf, NULL, 10);
+ long val;
u8 tmp;
int old_div;
int new_min;
+ int ret;
+
+ ret = kstrtol(buf, 10, &val);
+ if (ret)
+ return ret;
tmp = val == 8 ? 0xc0 :
val == 4 ? 0x80 :
@@ -573,6 +634,14 @@ static ssize_t show_temp(struct device *dev,
(((data->ext_temp[nr] >> ((nr - 1) * 3)) & 7));
return sprintf(buf, "%d\n", TEMP_FROM_REG_EXT(data->temp[nr], ext));
}
+static ssize_t show_temp_offset(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ int nr = to_sensor_dev_attr(attr)->index;
+ struct adm1031_data *data = adm1031_update_device(dev);
+ return sprintf(buf, "%d\n",
+ TEMP_OFFSET_FROM_REG(data->temp_offset[nr]));
+}
static ssize_t show_temp_min(struct device *dev,
struct device_attribute *attr, char *buf)
{
@@ -594,16 +663,42 @@ static ssize_t show_temp_crit(struct device *dev,
struct adm1031_data *data = adm1031_update_device(dev);
return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_crit[nr]));
}
+static ssize_t set_temp_offset(struct device *dev,
+ struct device_attribute *attr, const char *buf,
+ size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1031_data *data = i2c_get_clientdata(client);
+ int nr = to_sensor_dev_attr(attr)->index;
+ long val;
+ int ret;
+
+ ret = kstrtol(buf, 10, &val);
+ if (ret)
+ return ret;
+
+ val = clamp_val(val, -15000, 15000);
+ mutex_lock(&data->update_lock);
+ data->temp_offset[nr] = TEMP_OFFSET_TO_REG(val);
+ adm1031_write_value(client, ADM1031_REG_TEMP_OFFSET(nr),
+ data->temp_offset[nr]);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1031_data *data = i2c_get_clientdata(client);
int nr = to_sensor_dev_attr(attr)->index;
- int val;
+ long val;
+ int ret;
+
+ ret = kstrtol(buf, 10, &val);
+ if (ret)
+ return ret;
- val = simple_strtol(buf, NULL, 10);
- val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875);
+ val = clamp_val(val, -55000, 127000);
mutex_lock(&data->update_lock);
data->temp_min[nr] = TEMP_TO_REG(val);
adm1031_write_value(client, ADM1031_REG_TEMP_MIN(nr),
@@ -617,10 +712,14 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
struct i2c_client *client = to_i2c_client(dev);
struct adm1031_data *data = i2c_get_clientdata(client);
int nr = to_sensor_dev_attr(attr)->index;
- int val;
+ long val;
+ int ret;
+
+ ret = kstrtol(buf, 10, &val);
+ if (ret)
+ return ret;
- val = simple_strtol(buf, NULL, 10);
- val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875);
+ val = clamp_val(val, -55000, 127000);
mutex_lock(&data->update_lock);
data->temp_max[nr] = TEMP_TO_REG(val);
adm1031_write_value(client, ADM1031_REG_TEMP_MAX(nr),
@@ -634,10 +733,14 @@ static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr,
struct i2c_client *client = to_i2c_client(dev);
struct adm1031_data *data = i2c_get_clientdata(client);
int nr = to_sensor_dev_attr(attr)->index;
- int val;
+ long val;
+ int ret;
+
+ ret = kstrtol(buf, 10, &val);
+ if (ret)
+ return ret;
- val = simple_strtol(buf, NULL, 10);
- val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875);
+ val = clamp_val(val, -55000, 127000);
mutex_lock(&data->update_lock);
data->temp_crit[nr] = TEMP_TO_REG(val);
adm1031_write_value(client, ADM1031_REG_TEMP_CRIT(nr),
@@ -649,6 +752,8 @@ static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr,
#define temp_reg(offset) \
static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \
show_temp, NULL, offset - 1); \
+static SENSOR_DEVICE_ATTR(temp##offset##_offset, S_IRUGO | S_IWUSR, \
+ show_temp_offset, set_temp_offset, offset - 1); \
static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \
show_temp_min, set_temp_min, offset - 1); \
static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
@@ -661,7 +766,8 @@ temp_reg(2);
temp_reg(3);
/* Alarms */
-static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct adm1031_data *data = adm1031_update_device(dev);
return sprintf(buf, "%d\n", data->alarm);
@@ -693,13 +799,60 @@ static SENSOR_DEVICE_ATTR(temp3_crit_alarm, S_IRUGO, show_alarm, NULL, 12);
static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 13);
static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL, 14);
-static int adm1031_attach_adapter(struct i2c_adapter *adapter)
+/* Update Interval */
+static const unsigned int update_intervals[] = {
+ 16000, 8000, 4000, 2000, 1000, 500, 250, 125,
+};
+
+static ssize_t show_update_interval(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
- if (!(adapter->class & I2C_CLASS_HWMON))
- return 0;
- return i2c_probe(adapter, &addr_data, adm1031_detect);
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1031_data *data = i2c_get_clientdata(client);
+
+ return sprintf(buf, "%u\n", data->update_interval);
}
+static ssize_t set_update_interval(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1031_data *data = i2c_get_clientdata(client);
+ unsigned long val;
+ int i, err;
+ u8 reg;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
+
+ /*
+ * Find the nearest update interval from the table.
+ * Use it to determine the matching update rate.
+ */
+ for (i = 0; i < ARRAY_SIZE(update_intervals) - 1; i++) {
+ if (val >= update_intervals[i])
+ break;
+ }
+ /* if not found, we point to the last entry (lowest update interval) */
+
+ /* set the new update rate while preserving other settings */
+ reg = adm1031_read_value(client, ADM1031_REG_FAN_FILTER);
+ reg &= ~ADM1031_UPDATE_RATE_MASK;
+ reg |= i << ADM1031_UPDATE_RATE_SHIFT;
+ adm1031_write_value(client, ADM1031_REG_FAN_FILTER, reg);
+
+ mutex_lock(&data->update_lock);
+ data->update_interval = update_intervals[i];
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+static DEVICE_ATTR(update_interval, S_IRUGO | S_IWUSR, show_update_interval,
+ set_update_interval);
+
static struct attribute *adm1031_attributes[] = {
&sensor_dev_attr_fan1_input.dev_attr.attr,
&sensor_dev_attr_fan1_div.dev_attr.attr,
@@ -709,6 +862,7 @@ static struct attribute *adm1031_attributes[] = {
&sensor_dev_attr_pwm1.dev_attr.attr,
&sensor_dev_attr_auto_fan1_channel.dev_attr.attr,
&sensor_dev_attr_temp1_input.dev_attr.attr,
+ &sensor_dev_attr_temp1_offset.dev_attr.attr,
&sensor_dev_attr_temp1_min.dev_attr.attr,
&sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
&sensor_dev_attr_temp1_max.dev_attr.attr,
@@ -716,6 +870,7 @@ static struct attribute *adm1031_attributes[] = {
&sensor_dev_attr_temp1_crit.dev_attr.attr,
&sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,
&sensor_dev_attr_temp2_input.dev_attr.attr,
+ &sensor_dev_attr_temp2_offset.dev_attr.attr,
&sensor_dev_attr_temp2_min.dev_attr.attr,
&sensor_dev_attr_temp2_min_alarm.dev_attr.attr,
&sensor_dev_attr_temp2_max.dev_attr.attr,
@@ -734,6 +889,7 @@ static struct attribute *adm1031_attributes[] = {
&sensor_dev_attr_auto_fan1_min_pwm.dev_attr.attr,
+ &dev_attr_update_interval.attr,
&dev_attr_alarms.attr,
NULL
@@ -752,6 +908,7 @@ static struct attribute *adm1031_attributes_opt[] = {
&sensor_dev_attr_pwm2.dev_attr.attr,
&sensor_dev_attr_auto_fan2_channel.dev_attr.attr,
&sensor_dev_attr_temp3_input.dev_attr.attr,
+ &sensor_dev_attr_temp3_offset.dev_attr.attr,
&sensor_dev_attr_temp3_min.dev_attr.attr,
&sensor_dev_attr_temp3_min_alarm.dev_attr.attr,
&sensor_dev_attr_temp3_max.dev_attr.attr,
@@ -770,69 +927,60 @@ static const struct attribute_group adm1031_group_opt = {
.attrs = adm1031_attributes_opt,
};
-/* This function is called by i2c_probe */
-static int adm1031_detect(struct i2c_adapter *adapter, int address, int kind)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int adm1031_detect(struct i2c_client *client,
+ struct i2c_board_info *info)
{
- struct i2c_client *client;
- struct adm1031_data *data;
- int err = 0;
- const char *name = "";
+ struct i2c_adapter *adapter = client->adapter;
+ const char *name;
+ int id, co;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
- goto exit;
+ return -ENODEV;
- if (!(data = kzalloc(sizeof(struct adm1031_data), GFP_KERNEL))) {
- err = -ENOMEM;
- goto exit;
- }
+ id = i2c_smbus_read_byte_data(client, 0x3d);
+ co = i2c_smbus_read_byte_data(client, 0x3e);
- client = &data->client;
- i2c_set_clientdata(client, data);
- client->addr = address;
- client->adapter = adapter;
- client->driver = &adm1031_driver;
-
- if (kind < 0) {
- int id, co;
- id = i2c_smbus_read_byte_data(client, 0x3d);
- co = i2c_smbus_read_byte_data(client, 0x3e);
-
- if (!((id == 0x31 || id == 0x30) && co == 0x41))
- goto exit_free;
- kind = (id == 0x30) ? adm1030 : adm1031;
- }
+ if (!((id == 0x31 || id == 0x30) && co == 0x41))
+ return -ENODEV;
+ name = (id == 0x30) ? "adm1030" : "adm1031";
- if (kind <= 0)
- kind = adm1031;
+ strlcpy(info->type, name, I2C_NAME_SIZE);
- /* Given the detected chip type, set the chip name and the
- * auto fan control helper table. */
- if (kind == adm1030) {
- name = "adm1030";
- data->chan_select_table = &auto_channel_select_table_adm1030;
- } else if (kind == adm1031) {
- name = "adm1031";
- data->chan_select_table = &auto_channel_select_table_adm1031;
- }
- data->chip_type = kind;
+ return 0;
+}
+
+static int adm1031_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct adm1031_data *data;
+ int err;
- strlcpy(client->name, name, I2C_NAME_SIZE);
+ data = devm_kzalloc(&client->dev, sizeof(struct adm1031_data),
+ GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ i2c_set_clientdata(client, data);
+ data->chip_type = id->driver_data;
mutex_init(&data->update_lock);
- /* Tell the I2C layer a new client has arrived */
- if ((err = i2c_attach_client(client)))
- goto exit_free;
+ if (data->chip_type == adm1030)
+ data->chan_select_table = &auto_channel_select_table_adm1030;
+ else
+ data->chan_select_table = &auto_channel_select_table_adm1031;
/* Initialize the ADM1031 chip */
adm1031_init_client(client);
/* Register sysfs hooks */
- if ((err = sysfs_create_group(&client->dev.kobj, &adm1031_group)))
- goto exit_detach;
+ err = sysfs_create_group(&client->dev.kobj, &adm1031_group);
+ if (err)
+ return err;
- if (kind == adm1031) {
- if ((err = sysfs_create_group(&client->dev.kobj,
- &adm1031_group_opt)))
+ if (data->chip_type == adm1031) {
+ err = sysfs_create_group(&client->dev.kobj, &adm1031_group_opt);
+ if (err)
goto exit_remove;
}
@@ -847,26 +995,16 @@ static int adm1031_detect(struct i2c_adapter *adapter, int address, int kind)
exit_remove:
sysfs_remove_group(&client->dev.kobj, &adm1031_group);
sysfs_remove_group(&client->dev.kobj, &adm1031_group_opt);
-exit_detach:
- i2c_detach_client(client);
-exit_free:
- kfree(data);
-exit:
return err;
}
-static int adm1031_detach_client(struct i2c_client *client)
+static int adm1031_remove(struct i2c_client *client)
{
struct adm1031_data *data = i2c_get_clientdata(client);
- int ret;
hwmon_device_unregister(data->hwmon_dev);
sysfs_remove_group(&client->dev.kobj, &adm1031_group);
sysfs_remove_group(&client->dev.kobj, &adm1031_group_opt);
- if ((ret = i2c_detach_client(client)) != 0) {
- return ret;
- }
- kfree(data);
return 0;
}
@@ -874,6 +1012,7 @@ static void adm1031_init_client(struct i2c_client *client)
{
unsigned int read_val;
unsigned int mask;
+ int i;
struct adm1031_data *data = i2c_get_clientdata(client);
mask = (ADM1031_CONF2_PWM1_ENABLE | ADM1031_CONF2_TACH1_ENABLE);
@@ -883,28 +1022,35 @@ static void adm1031_init_client(struct i2c_client *client)
}
/* Initialize the ADM1031 chip (enables fan speed reading ) */
read_val = adm1031_read_value(client, ADM1031_REG_CONF2);
- if ((read_val | mask) != read_val) {
- adm1031_write_value(client, ADM1031_REG_CONF2, read_val | mask);
- }
+ if ((read_val | mask) != read_val)
+ adm1031_write_value(client, ADM1031_REG_CONF2, read_val | mask);
read_val = adm1031_read_value(client, ADM1031_REG_CONF1);
if ((read_val | ADM1031_CONF1_MONITOR_ENABLE) != read_val) {
- adm1031_write_value(client, ADM1031_REG_CONF1, read_val |
- ADM1031_CONF1_MONITOR_ENABLE);
+ adm1031_write_value(client, ADM1031_REG_CONF1,
+ read_val | ADM1031_CONF1_MONITOR_ENABLE);
}
+ /* Read the chip's update rate */
+ mask = ADM1031_UPDATE_RATE_MASK;
+ read_val = adm1031_read_value(client, ADM1031_REG_FAN_FILTER);
+ i = (read_val & mask) >> ADM1031_UPDATE_RATE_SHIFT;
+ /* Save it as update interval */
+ data->update_interval = update_intervals[i];
}
static struct adm1031_data *adm1031_update_device(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1031_data *data = i2c_get_clientdata(client);
+ unsigned long next_update;
int chan;
mutex_lock(&data->update_lock);
- if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
- || !data->valid) {
+ next_update = data->last_updated
+ + msecs_to_jiffies(data->update_interval);
+ if (time_after(jiffies, next_update) || !data->valid) {
dev_dbg(&client->dev, "Starting adm1031 update\n");
for (chan = 0;
@@ -929,12 +1075,14 @@ static struct adm1031_data *adm1031_update_device(struct device *dev)
/* oldh is actually newer */
if (newh != oldh)
dev_warn(&client->dev,
- "Remote temperature may be "
- "wrong.\n");
+ "Remote temperature may be wrong.\n");
#endif
}
data->temp[chan] = newh;
+ data->temp_offset[chan] =
+ adm1031_read_value(client,
+ ADM1031_REG_TEMP_OFFSET(chan));
data->temp_min[chan] =
adm1031_read_value(client,
ADM1031_REG_TEMP_MIN(chan));
@@ -954,22 +1102,24 @@ static struct adm1031_data *adm1031_update_device(struct device *dev)
data->conf2 = adm1031_read_value(client, ADM1031_REG_CONF2);
data->alarm = adm1031_read_value(client, ADM1031_REG_STATUS(0))
- | (adm1031_read_value(client, ADM1031_REG_STATUS(1))
- << 8);
- if (data->chip_type == adm1030) {
+ | (adm1031_read_value(client, ADM1031_REG_STATUS(1)) << 8);
+ if (data->chip_type == adm1030)
data->alarm &= 0xc0ff;
- }
- for (chan=0; chan<(data->chip_type == adm1030 ? 1 : 2); chan++) {
+ for (chan = 0; chan < (data->chip_type == adm1030 ? 1 : 2);
+ chan++) {
data->fan_div[chan] =
- adm1031_read_value(client, ADM1031_REG_FAN_DIV(chan));
+ adm1031_read_value(client,
+ ADM1031_REG_FAN_DIV(chan));
data->fan_min[chan] =
- adm1031_read_value(client, ADM1031_REG_FAN_MIN(chan));
+ adm1031_read_value(client,
+ ADM1031_REG_FAN_MIN(chan));
data->fan[chan] =
- adm1031_read_value(client, ADM1031_REG_FAN_SPEED(chan));
+ adm1031_read_value(client,
+ ADM1031_REG_FAN_SPEED(chan));
data->pwm[chan] =
- 0xf & (adm1031_read_value(client, ADM1031_REG_PWM) >>
- (4*chan));
+ (adm1031_read_value(client,
+ ADM1031_REG_PWM) >> (4 * chan)) & 0x0f;
}
data->last_updated = jiffies;
data->valid = 1;
@@ -980,19 +1130,8 @@ static struct adm1031_data *adm1031_update_device(struct device *dev)
return data;
}
-static int __init sensors_adm1031_init(void)
-{
- return i2c_add_driver(&adm1031_driver);
-}
-
-static void __exit sensors_adm1031_exit(void)
-{
- i2c_del_driver(&adm1031_driver);
-}
+module_i2c_driver(adm1031_driver);
MODULE_AUTHOR("Alexandre d'Alton <alex@alexdalton.org>");
MODULE_DESCRIPTION("ADM1031/ADM1030 driver");
MODULE_LICENSE("GPL");
-
-module_init(sensors_adm1031_init);
-module_exit(sensors_adm1031_exit);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 04:38:26 +0000