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-rw-r--r--drivers/hwmon/adm9240.c752
1 files changed, 381 insertions, 371 deletions
diff --git a/drivers/hwmon/adm9240.c b/drivers/hwmon/adm9240.c
index 5c68e9c311a..086d02a9ecd 100644
--- a/drivers/hwmon/adm9240.c
+++ b/drivers/hwmon/adm9240.c
@@ -1,12 +1,12 @@
/*
* adm9240.c Part of lm_sensors, Linux kernel modules for hardware
- * monitoring
+ * monitoring
*
* Copyright (C) 1999 Frodo Looijaard <frodol@dds.nl>
* Philip Edelbrock <phil@netroedge.com>
* Copyright (C) 2003 Michiel Rook <michiel@grendelproject.nl>
- * Copyright (C) 2005 Grant Coady <gcoady@gmail.com> with valuable
- * guidance from Jean Delvare
+ * Copyright (C) 2005 Grant Coady <gcoady.lk@gmail.com> with valuable
+ * guidance from Jean Delvare
*
* Driver supports Analog Devices ADM9240
* Dallas Semiconductor DS1780
@@ -20,7 +20,7 @@
* Alarms 16-bit map of active alarms
* Analog Out 0..1250 mV output
*
- * Chassis Intrusion: clear CI latch with 'echo 1 > chassis_clear'
+ * Chassis Intrusion: clear CI latch with 'echo 0 > intrusion0_alarm'
*
* Test hardware: Intel SE440BX-2 desktop motherboard --Grant
*
@@ -45,17 +45,18 @@
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/i2c.h>
-#include <linux/i2c-sensor.h>
-#include <linux/i2c-vid.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-vid.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/jiffies.h>
/* Addresses to scan */
-static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f,
+static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f,
I2C_CLIENT_END };
-static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
-
-/* Insmod parameters */
-SENSORS_INSMOD_3(adm9240, ds1780, lm81);
+enum chips { adm9240, ds1780, lm81 };
/* ADM9240 registers */
#define ADM9240_REG_MAN_ID 0x3e
@@ -70,8 +71,7 @@ SENSORS_INSMOD_3(adm9240, ds1780, lm81);
#define ADM9240_REG_INT(nr) (0x41 + (nr))
#define ADM9240_REG_INT_MASK(nr) (0x43 + (nr))
#define ADM9240_REG_TEMP 0x27
-#define ADM9240_REG_TEMP_HIGH 0x39
-#define ADM9240_REG_TEMP_HYST 0x3a
+#define ADM9240_REG_TEMP_MAX(nr) (0x39 + (nr)) /* 0, 1 = high, hyst */
#define ADM9240_REG_ANALOG_OUT 0x19
#define ADM9240_REG_CHASSIS_CLEAR 0x46
#define ADM9240_REG_VID_FAN_DIV 0x47
@@ -98,13 +98,13 @@ static inline unsigned int IN_FROM_REG(u8 reg, int n)
static inline u8 IN_TO_REG(unsigned long val, int n)
{
- return SENSORS_LIMIT(SCALE(val, 192, nom_mv[n]), 0, 255);
+ return clamp_val(SCALE(val, 192, nom_mv[n]), 0, 255);
}
/* temperature range: -40..125, 127 disables temperature alarm */
static inline s8 TEMP_TO_REG(long val)
{
- return SENSORS_LIMIT(SCALE(val, 1, 1000), -40, 127);
+ return clamp_val(SCALE(val, 1, 1000), -40, 127);
}
/* two fans, each with low fan speed limit */
@@ -122,7 +122,7 @@ static inline unsigned int FAN_FROM_REG(u8 reg, u8 div)
/* analog out 0..1250mV */
static inline u8 AOUT_TO_REG(unsigned long val)
{
- return SENSORS_LIMIT(SCALE(val, 255, 1250), 0, 255);
+ return clamp_val(SCALE(val, 255, 1250), 0, 255);
}
static inline unsigned int AOUT_FROM_REG(u8 reg)
@@ -130,27 +130,39 @@ static inline unsigned int AOUT_FROM_REG(u8 reg)
return SCALE(reg, 1250, 255);
}
-static int adm9240_attach_adapter(struct i2c_adapter *adapter);
-static int adm9240_detect(struct i2c_adapter *adapter, int address, int kind);
+static int adm9240_probe(struct i2c_client *client,
+ const struct i2c_device_id *id);
+static int adm9240_detect(struct i2c_client *client,
+ struct i2c_board_info *info);
static void adm9240_init_client(struct i2c_client *client);
-static int adm9240_detach_client(struct i2c_client *client);
+static int adm9240_remove(struct i2c_client *client);
static struct adm9240_data *adm9240_update_device(struct device *dev);
/* driver data */
+static const struct i2c_device_id adm9240_id[] = {
+ { "adm9240", adm9240 },
+ { "ds1780", ds1780 },
+ { "lm81", lm81 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, adm9240_id);
+
static struct i2c_driver adm9240_driver = {
- .owner = THIS_MODULE,
- .name = "adm9240",
- .id = I2C_DRIVERID_ADM9240,
- .flags = I2C_DF_NOTIFY,
- .attach_adapter = adm9240_attach_adapter,
- .detach_client = adm9240_detach_client,
+ .class = I2C_CLASS_HWMON,
+ .driver = {
+ .name = "adm9240",
+ },
+ .probe = adm9240_probe,
+ .remove = adm9240_remove,
+ .id_table = adm9240_id,
+ .detect = adm9240_detect,
+ .address_list = normal_i2c,
};
/* per client data */
struct adm9240_data {
- enum chips type;
- struct i2c_client client;
- struct semaphore update_lock;
+ struct device *hwmon_dev;
+ struct mutex update_lock;
char valid;
unsigned long last_updated_measure;
unsigned long last_updated_config;
@@ -162,177 +174,170 @@ struct adm9240_data {
u8 fan_min[2]; /* rw fan1_min */
u8 fan_div[2]; /* rw fan1_div, read-only accessor */
s16 temp; /* ro temp1_input, 9-bit sign-extended */
- s8 temp_high; /* rw temp1_max */
- s8 temp_hyst; /* rw temp1_max_hyst */
+ s8 temp_max[2]; /* rw 0 -> temp_max, 1 -> temp_max_hyst */
u16 alarms; /* ro alarms */
u8 aout; /* rw aout_output */
u8 vid; /* ro vid */
u8 vrm; /* -- vrm set on startup, no accessor */
};
-/* i2c byte read/write interface */
-static int adm9240_read_value(struct i2c_client *client, u8 reg)
+/*** sysfs accessors ***/
+
+/* temperature */
+static ssize_t show_temp(struct device *dev, struct device_attribute *dummy,
+ char *buf)
{
- return i2c_smbus_read_byte_data(client, reg);
+ struct adm9240_data *data = adm9240_update_device(dev);
+ return sprintf(buf, "%d\n", data->temp * 500); /* 9-bit value */
}
-static int adm9240_write_value(struct i2c_client *client, u8 reg, u8 value)
+static ssize_t show_max(struct device *dev, struct device_attribute *devattr,
+ char *buf)
{
- return i2c_smbus_write_byte_data(client, reg, value);
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+ struct adm9240_data *data = adm9240_update_device(dev);
+ return sprintf(buf, "%d\n", data->temp_max[attr->index] * 1000);
}
-/*** sysfs accessors ***/
+static ssize_t set_max(struct device *dev, struct device_attribute *devattr,
+ const char *buf, size_t count)
+{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm9240_data *data = i2c_get_clientdata(client);
+ long val;
+ int err;
-/* temperature */
-#define show_temp(value, scale) \
-static ssize_t show_##value(struct device *dev, \
- struct device_attribute *attr, \
- char *buf) \
-{ \
- struct adm9240_data *data = adm9240_update_device(dev); \
- return sprintf(buf, "%d\n", data->value * scale); \
-}
-show_temp(temp_high, 1000);
-show_temp(temp_hyst, 1000);
-show_temp(temp, 500); /* 0.5'C per bit */
-
-#define set_temp(value, reg) \
-static ssize_t set_##value(struct device *dev, \
- struct device_attribute *attr, \
- const char *buf, size_t count) \
-{ \
- struct i2c_client *client = to_i2c_client(dev); \
- struct adm9240_data *data = adm9240_update_device(dev); \
- long temp = simple_strtoul(buf, NULL, 10); \
- \
- down(&data->update_lock); \
- data->value = TEMP_TO_REG(temp); \
- adm9240_write_value(client, reg, data->value); \
- up(&data->update_lock); \
- return count; \
-}
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
-set_temp(temp_high, ADM9240_REG_TEMP_HIGH);
-set_temp(temp_hyst, ADM9240_REG_TEMP_HYST);
+ mutex_lock(&data->update_lock);
+ data->temp_max[attr->index] = TEMP_TO_REG(val);
+ i2c_smbus_write_byte_data(client, ADM9240_REG_TEMP_MAX(attr->index),
+ data->temp_max[attr->index]);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
-static DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO,
- show_temp_high, set_temp_high);
-static DEVICE_ATTR(temp1_max_hyst, S_IWUSR | S_IRUGO,
- show_temp_hyst, set_temp_hyst);
static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL);
+static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO,
+ show_max, set_max, 0);
+static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IWUSR | S_IRUGO,
+ show_max, set_max, 1);
/* voltage */
-static ssize_t show_in(struct device *dev, char *buf, int nr)
+static ssize_t show_in(struct device *dev, struct device_attribute *devattr,
+ char *buf)
{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct adm9240_data *data = adm9240_update_device(dev);
- return sprintf(buf, "%d\n", IN_FROM_REG(data->in[nr], nr));
+ return sprintf(buf, "%d\n", IN_FROM_REG(data->in[attr->index],
+ attr->index));
}
-static ssize_t show_in_min(struct device *dev, char *buf, int nr)
+static ssize_t show_in_min(struct device *dev,
+ struct device_attribute *devattr, char *buf)
{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct adm9240_data *data = adm9240_update_device(dev);
- return sprintf(buf, "%d\n", IN_FROM_REG(data->in_min[nr], nr));
+ return sprintf(buf, "%d\n", IN_FROM_REG(data->in_min[attr->index],
+ attr->index));
}
-static ssize_t show_in_max(struct device *dev, char *buf, int nr)
+static ssize_t show_in_max(struct device *dev,
+ struct device_attribute *devattr, char *buf)
{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct adm9240_data *data = adm9240_update_device(dev);
- return sprintf(buf, "%d\n", IN_FROM_REG(data->in_max[nr], nr));
+ return sprintf(buf, "%d\n", IN_FROM_REG(data->in_max[attr->index],
+ attr->index));
}
-static ssize_t set_in_min(struct device *dev, const char *buf,
- size_t count, int nr)
+static ssize_t set_in_min(struct device *dev,
+ struct device_attribute *devattr,
+ const char *buf, size_t count)
{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct i2c_client *client = to_i2c_client(dev);
struct adm9240_data *data = i2c_get_clientdata(client);
- unsigned long val = simple_strtoul(buf, NULL, 10);
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
- down(&data->update_lock);
- data->in_min[nr] = IN_TO_REG(val, nr);
- adm9240_write_value(client, ADM9240_REG_IN_MIN(nr), data->in_min[nr]);
- up(&data->update_lock);
+ mutex_lock(&data->update_lock);
+ data->in_min[attr->index] = IN_TO_REG(val, attr->index);
+ i2c_smbus_write_byte_data(client, ADM9240_REG_IN_MIN(attr->index),
+ data->in_min[attr->index]);
+ mutex_unlock(&data->update_lock);
return count;
}
-static ssize_t set_in_max(struct device *dev, const char *buf,
- size_t count, int nr)
+static ssize_t set_in_max(struct device *dev,
+ struct device_attribute *devattr,
+ const char *buf, size_t count)
{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct i2c_client *client = to_i2c_client(dev);
struct adm9240_data *data = i2c_get_clientdata(client);
- unsigned long val = simple_strtoul(buf, NULL, 10);
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
- down(&data->update_lock);
- data->in_max[nr] = IN_TO_REG(val, nr);
- adm9240_write_value(client, ADM9240_REG_IN_MAX(nr), data->in_max[nr]);
- up(&data->update_lock);
+ mutex_lock(&data->update_lock);
+ data->in_max[attr->index] = IN_TO_REG(val, attr->index);
+ i2c_smbus_write_byte_data(client, ADM9240_REG_IN_MAX(attr->index),
+ data->in_max[attr->index]);
+ mutex_unlock(&data->update_lock);
return count;
}
-#define show_in_offset(offset) \
-static ssize_t show_in##offset(struct device *dev, \
- struct device_attribute *attr, \
- char *buf) \
-{ \
- return show_in(dev, buf, offset); \
-} \
-static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in##offset, NULL); \
-static ssize_t show_in##offset##_min(struct device *dev, \
- struct device_attribute *attr, \
- char *buf) \
-{ \
- return show_in_min(dev, buf, offset); \
-} \
-static ssize_t show_in##offset##_max(struct device *dev, \
- struct device_attribute *attr, \
- char *buf) \
-{ \
- return show_in_max(dev, buf, offset); \
-} \
-static ssize_t \
-set_in##offset##_min(struct device *dev, \
- struct device_attribute *attr, const char *buf, \
- size_t count) \
-{ \
- return set_in_min(dev, buf, count, offset); \
-} \
-static ssize_t \
-set_in##offset##_max(struct device *dev, \
- struct device_attribute *attr, const char *buf, \
- size_t count) \
-{ \
- return set_in_max(dev, buf, count, offset); \
-} \
-static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \
- show_in##offset##_min, set_in##offset##_min); \
-static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \
- show_in##offset##_max, set_in##offset##_max);
-
-show_in_offset(0);
-show_in_offset(1);
-show_in_offset(2);
-show_in_offset(3);
-show_in_offset(4);
-show_in_offset(5);
+#define vin(nr) \
+static SENSOR_DEVICE_ATTR(in##nr##_input, S_IRUGO, \
+ show_in, NULL, nr); \
+static SENSOR_DEVICE_ATTR(in##nr##_min, S_IRUGO | S_IWUSR, \
+ show_in_min, set_in_min, nr); \
+static SENSOR_DEVICE_ATTR(in##nr##_max, S_IRUGO | S_IWUSR, \
+ show_in_max, set_in_max, nr);
+
+vin(0);
+vin(1);
+vin(2);
+vin(3);
+vin(4);
+vin(5);
/* fans */
-static ssize_t show_fan(struct device *dev, char *buf, int nr)
+static ssize_t show_fan(struct device *dev,
+ struct device_attribute *devattr, char *buf)
{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct adm9240_data *data = adm9240_update_device(dev);
- return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr],
- 1 << data->fan_div[nr]));
+ return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[attr->index],
+ 1 << data->fan_div[attr->index]));
}
-static ssize_t show_fan_min(struct device *dev, char *buf, int nr)
+static ssize_t show_fan_min(struct device *dev,
+ struct device_attribute *devattr, char *buf)
{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct adm9240_data *data = adm9240_update_device(dev);
- return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr],
- 1 << data->fan_div[nr]));
+ return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[attr->index],
+ 1 << data->fan_div[attr->index]));
}
-static ssize_t show_fan_div(struct device *dev, char *buf, int nr)
+static ssize_t show_fan_div(struct device *dev,
+ struct device_attribute *devattr, char *buf)
{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct adm9240_data *data = adm9240_update_device(dev);
- return sprintf(buf, "%d\n", 1 << data->fan_div[nr]);
+ return sprintf(buf, "%d\n", 1 << data->fan_div[attr->index]);
}
/* write new fan div, callers must hold data->update_lock */
@@ -341,16 +346,17 @@ static void adm9240_write_fan_div(struct i2c_client *client, int nr,
{
u8 reg, old, shift = (nr + 2) * 2;
- reg = adm9240_read_value(client, ADM9240_REG_VID_FAN_DIV);
+ reg = i2c_smbus_read_byte_data(client, ADM9240_REG_VID_FAN_DIV);
old = (reg >> shift) & 3;
reg &= ~(3 << shift);
reg |= (fan_div << shift);
- adm9240_write_value(client, ADM9240_REG_VID_FAN_DIV, reg);
- dev_dbg(&client->dev, "fan%d clock divider changed from %u "
- "to %u\n", nr + 1, 1 << old, 1 << fan_div);
+ i2c_smbus_write_byte_data(client, ADM9240_REG_VID_FAN_DIV, reg);
+ dev_dbg(&client->dev,
+ "fan%d clock divider changed from %u to %u\n",
+ nr + 1, 1 << old, 1 << fan_div);
}
-/*
+/*
* set fan speed low limit:
*
* - value is zero: disable fan speed low limit alarm
@@ -361,15 +367,23 @@ static void adm9240_write_fan_div(struct i2c_client *client, int nr,
* - otherwise: select fan clock divider to suit fan speed low limit,
* measurement code may adjust registers to ensure fan speed reading
*/
-static ssize_t set_fan_min(struct device *dev, const char *buf,
- size_t count, int nr)
+static ssize_t set_fan_min(struct device *dev,
+ struct device_attribute *devattr,
+ const char *buf, size_t count)
{
+ struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct i2c_client *client = to_i2c_client(dev);
struct adm9240_data *data = i2c_get_clientdata(client);
- unsigned long val = simple_strtoul(buf, NULL, 10);
+ int nr = attr->index;
u8 new_div;
+ unsigned long val;
+ int err;
- down(&data->update_lock);
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
+
+ mutex_lock(&data->update_lock);
if (!val) {
data->fan_min[nr] = 255;
@@ -406,58 +420,53 @@ static ssize_t set_fan_min(struct device *dev, const char *buf,
data->fan_div[nr] = new_div;
adm9240_write_fan_div(client, nr, new_div);
}
- adm9240_write_value(client, ADM9240_REG_FAN_MIN(nr),
+ i2c_smbus_write_byte_data(client, ADM9240_REG_FAN_MIN(nr),
data->fan_min[nr]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
-#define show_fan_offset(offset) \
-static ssize_t show_fan_##offset (struct device *dev, \
- struct device_attribute *attr, \
- char *buf) \
-{ \
-return show_fan(dev, buf, offset - 1); \
-} \
-static ssize_t show_fan_##offset##_div (struct device *dev, \
- struct device_attribute *attr, \
- char *buf) \
-{ \
-return show_fan_div(dev, buf, offset - 1); \
-} \
-static ssize_t show_fan_##offset##_min (struct device *dev, \
- struct device_attribute *attr, \
- char *buf) \
-{ \
-return show_fan_min(dev, buf, offset - 1); \
-} \
-static ssize_t set_fan_##offset##_min (struct device *dev, \
- struct device_attribute *attr, \
- const char *buf, size_t count) \
-{ \
-return set_fan_min(dev, buf, count, offset - 1); \
-} \
-static DEVICE_ATTR(fan##offset##_input, S_IRUGO, \
- show_fan_##offset, NULL); \
-static DEVICE_ATTR(fan##offset##_div, S_IRUGO, \
- show_fan_##offset##_div, NULL); \
-static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
- show_fan_##offset##_min, set_fan_##offset##_min);
-
-show_fan_offset(1);
-show_fan_offset(2);
+#define fan(nr) \
+static SENSOR_DEVICE_ATTR(fan##nr##_input, S_IRUGO, \
+ show_fan, NULL, nr - 1); \
+static SENSOR_DEVICE_ATTR(fan##nr##_div, S_IRUGO, \
+ show_fan_div, NULL, nr - 1); \
+static SENSOR_DEVICE_ATTR(fan##nr##_min, S_IRUGO | S_IWUSR, \
+ show_fan_min, set_fan_min, nr - 1);
+
+fan(1);
+fan(2);
/* 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 adm9240_data *data = adm9240_update_device(dev);
return sprintf(buf, "%u\n", data->alarms);
}
static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+static ssize_t show_alarm(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ int bitnr = to_sensor_dev_attr(attr)->index;
+ struct adm9240_data *data = adm9240_update_device(dev);
+ return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
+}
+static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8);
+static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 9);
+static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4);
+static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6);
+static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7);
+
/* vid */
-static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_vid(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
struct adm9240_data *data = adm9240_update_device(dev);
return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
@@ -465,190 +474,202 @@ static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char
static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
/* analog output */
-static ssize_t show_aout(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_aout(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
struct adm9240_data *data = adm9240_update_device(dev);
return sprintf(buf, "%d\n", AOUT_FROM_REG(data->aout));
}
-static ssize_t set_aout(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+static ssize_t set_aout(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm9240_data *data = i2c_get_clientdata(client);
- unsigned long val = simple_strtol(buf, NULL, 10);
+ long val;
+ int err;
- down(&data->update_lock);
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
+
+ mutex_lock(&data->update_lock);
data->aout = AOUT_TO_REG(val);
- adm9240_write_value(client, ADM9240_REG_ANALOG_OUT, data->aout);
- up(&data->update_lock);
+ i2c_smbus_write_byte_data(client, ADM9240_REG_ANALOG_OUT, data->aout);
+ mutex_unlock(&data->update_lock);
return count;
}
static DEVICE_ATTR(aout_output, S_IRUGO | S_IWUSR, show_aout, set_aout);
-/* chassis_clear */
-static ssize_t chassis_clear(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+static ssize_t chassis_clear(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
- unsigned long val = simple_strtol(buf, NULL, 10);
+ struct adm9240_data *data = i2c_get_clientdata(client);
+ unsigned long val;
+
+ if (kstrtoul(buf, 10, &val) || val != 0)
+ return -EINVAL;
+
+ mutex_lock(&data->update_lock);
+ i2c_smbus_write_byte_data(client, ADM9240_REG_CHASSIS_CLEAR, 0x80);
+ data->valid = 0; /* Force cache refresh */
+ mutex_unlock(&data->update_lock);
+ dev_dbg(&client->dev, "chassis intrusion latch cleared\n");
- if (val == 1) {
- adm9240_write_value(client, ADM9240_REG_CHASSIS_CLEAR, 0x80);
- dev_dbg(&client->dev, "chassis intrusion latch cleared\n");
- }
return count;
}
-static DEVICE_ATTR(chassis_clear, S_IWUSR, NULL, chassis_clear);
+static SENSOR_DEVICE_ATTR(intrusion0_alarm, S_IRUGO | S_IWUSR, show_alarm,
+ chassis_clear, 12);
+
+static struct attribute *adm9240_attributes[] = {
+ &sensor_dev_attr_in0_input.dev_attr.attr,
+ &sensor_dev_attr_in0_min.dev_attr.attr,
+ &sensor_dev_attr_in0_max.dev_attr.attr,
+ &sensor_dev_attr_in0_alarm.dev_attr.attr,
+ &sensor_dev_attr_in1_input.dev_attr.attr,
+ &sensor_dev_attr_in1_min.dev_attr.attr,
+ &sensor_dev_attr_in1_max.dev_attr.attr,
+ &sensor_dev_attr_in1_alarm.dev_attr.attr,
+ &sensor_dev_attr_in2_input.dev_attr.attr,
+ &sensor_dev_attr_in2_min.dev_attr.attr,
+ &sensor_dev_attr_in2_max.dev_attr.attr,
+ &sensor_dev_attr_in2_alarm.dev_attr.attr,
+ &sensor_dev_attr_in3_input.dev_attr.attr,
+ &sensor_dev_attr_in3_min.dev_attr.attr,
+ &sensor_dev_attr_in3_max.dev_attr.attr,
+ &sensor_dev_attr_in3_alarm.dev_attr.attr,
+ &sensor_dev_attr_in4_input.dev_attr.attr,
+ &sensor_dev_attr_in4_min.dev_attr.attr,
+ &sensor_dev_attr_in4_max.dev_attr.attr,
+ &sensor_dev_attr_in4_alarm.dev_attr.attr,
+ &sensor_dev_attr_in5_input.dev_attr.attr,
+ &sensor_dev_attr_in5_min.dev_attr.attr,
+ &sensor_dev_attr_in5_max.dev_attr.attr,
+ &sensor_dev_attr_in5_alarm.dev_attr.attr,
+ &dev_attr_temp1_input.attr,
+ &sensor_dev_attr_temp1_max.dev_attr.attr,
+ &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
+ &sensor_dev_attr_temp1_alarm.dev_attr.attr,
+ &sensor_dev_attr_fan1_input.dev_attr.attr,
+ &sensor_dev_attr_fan1_div.dev_attr.attr,
+ &sensor_dev_attr_fan1_min.dev_attr.attr,
+ &sensor_dev_attr_fan1_alarm.dev_attr.attr,
+ &sensor_dev_attr_fan2_input.dev_attr.attr,
+ &sensor_dev_attr_fan2_div.dev_attr.attr,
+ &sensor_dev_attr_fan2_min.dev_attr.attr,
+ &sensor_dev_attr_fan2_alarm.dev_attr.attr,
+ &dev_attr_alarms.attr,
+ &dev_attr_aout_output.attr,
+ &sensor_dev_attr_intrusion0_alarm.dev_attr.attr,
+ &dev_attr_cpu0_vid.attr,
+ NULL
+};
+
+static const struct attribute_group adm9240_group = {
+ .attrs = adm9240_attributes,
+};
/*** sensor chip detect and driver install ***/
-static int adm9240_detect(struct i2c_adapter *adapter, int address, int kind)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int adm9240_detect(struct i2c_client *new_client,
+ struct i2c_board_info *info)
{
- struct i2c_client *new_client;
- struct adm9240_data *data;
- int err = 0;
+ struct i2c_adapter *adapter = new_client->adapter;
const char *name = "";
+ int address = new_client->addr;
u8 man_id, die_rev;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
- goto exit;
-
- if (!(data = kmalloc(sizeof(struct adm9240_data), GFP_KERNEL))) {
- err = -ENOMEM;
- goto exit;
+ return -ENODEV;
+
+ /* verify chip: reg address should match i2c address */
+ if (i2c_smbus_read_byte_data(new_client, ADM9240_REG_I2C_ADDR)
+ != address) {
+ dev_err(&adapter->dev, "detect fail: address match, 0x%02x\n",
+ address);
+ return -ENODEV;
}
- memset(data, 0, sizeof(struct adm9240_data));
- new_client = &data->client;
- i2c_set_clientdata(new_client, data);
- new_client->addr = address;
- new_client->adapter = adapter;
- new_client->driver = &adm9240_driver;
- new_client->flags = 0;
-
- if (kind == 0) {
- kind = adm9240;
+ /* check known chip manufacturer */
+ man_id = i2c_smbus_read_byte_data(new_client, ADM9240_REG_MAN_ID);
+ if (man_id == 0x23) {
+ name = "adm9240";
+ } else if (man_id == 0xda) {
+ name = "ds1780";
+ } else if (man_id == 0x01) {
+ name = "lm81";
+ } else {
+ dev_err(&adapter->dev, "detect fail: unknown manuf, 0x%02x\n",
+ man_id);
+ return -ENODEV;
}
- if (kind < 0) {
+ /* successful detect, print chip info */
+ die_rev = i2c_smbus_read_byte_data(new_client, ADM9240_REG_DIE_REV);
+ dev_info(&adapter->dev, "found %s revision %u\n",
+ man_id == 0x23 ? "ADM9240" :
+ man_id == 0xda ? "DS1780" : "LM81", die_rev);
- /* verify chip: reg address should match i2c address */
- if (adm9240_read_value(new_client, ADM9240_REG_I2C_ADDR)
- != address) {
- dev_err(&adapter->dev, "detect fail: address match, "
- "0x%02x\n", address);
- goto exit_free;
- }
+ strlcpy(info->type, name, I2C_NAME_SIZE);
- /* check known chip manufacturer */
- man_id = adm9240_read_value(new_client, ADM9240_REG_MAN_ID);
-
- if (man_id == 0x23) {
- kind = adm9240;
- } else if (man_id == 0xda) {
- kind = ds1780;
- } else if (man_id == 0x01) {
- kind = lm81;
- } else {
- dev_err(&adapter->dev, "detect fail: unknown manuf, "
- "0x%02x\n", man_id);
- goto exit_free;
- }
-
- /* successful detect, print chip info */
- die_rev = adm9240_read_value(new_client, ADM9240_REG_DIE_REV);
- dev_info(&adapter->dev, "found %s revision %u\n",
- man_id == 0x23 ? "ADM9240" :
- man_id == 0xda ? "DS1780" : "LM81", die_rev);
- }
+ return 0;
+}
- /* either forced or detected chip kind */
- if (kind == adm9240) {
- name = "adm9240";
- } else if (kind == ds1780) {
- name = "ds1780";
- } else if (kind == lm81) {
- name = "lm81";
- }
+static int adm9240_probe(struct i2c_client *new_client,
+ const struct i2c_device_id *id)
+{
+ struct adm9240_data *data;
+ int err;
- /* fill in the remaining client fields and attach */
- strlcpy(new_client->name, name, I2C_NAME_SIZE);
- data->type = kind;
- init_MUTEX(&data->update_lock);
+ data = devm_kzalloc(&new_client->dev, sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
- if ((err = i2c_attach_client(new_client)))
- goto exit_free;
+ i2c_set_clientdata(new_client, data);
+ mutex_init(&data->update_lock);
adm9240_init_client(new_client);
/* populate sysfs filesystem */
- device_create_file(&new_client->dev, &dev_attr_in0_input);
- device_create_file(&new_client->dev, &dev_attr_in0_min);
- device_create_file(&new_client->dev, &dev_attr_in0_max);
- device_create_file(&new_client->dev, &dev_attr_in1_input);
- device_create_file(&new_client->dev, &dev_attr_in1_min);
- device_create_file(&new_client->dev, &dev_attr_in1_max);
- device_create_file(&new_client->dev, &dev_attr_in2_input);
- device_create_file(&new_client->dev, &dev_attr_in2_min);
- device_create_file(&new_client->dev, &dev_attr_in2_max);
- device_create_file(&new_client->dev, &dev_attr_in3_input);
- device_create_file(&new_client->dev, &dev_attr_in3_min);
- device_create_file(&new_client->dev, &dev_attr_in3_max);
- device_create_file(&new_client->dev, &dev_attr_in4_input);
- device_create_file(&new_client->dev, &dev_attr_in4_min);
- device_create_file(&new_client->dev, &dev_attr_in4_max);
- device_create_file(&new_client->dev, &dev_attr_in5_input);
- device_create_file(&new_client->dev, &dev_attr_in5_min);
- device_create_file(&new_client->dev, &dev_attr_in5_max);
- device_create_file(&new_client->dev, &dev_attr_temp1_max);
- device_create_file(&new_client->dev, &dev_attr_temp1_max_hyst);
- device_create_file(&new_client->dev, &dev_attr_temp1_input);
- device_create_file(&new_client->dev, &dev_attr_fan1_input);
- device_create_file(&new_client->dev, &dev_attr_fan1_div);
- device_create_file(&new_client->dev, &dev_attr_fan1_min);
- device_create_file(&new_client->dev, &dev_attr_fan2_input);
- device_create_file(&new_client->dev, &dev_attr_fan2_div);
- device_create_file(&new_client->dev, &dev_attr_fan2_min);
- device_create_file(&new_client->dev, &dev_attr_alarms);
- device_create_file(&new_client->dev, &dev_attr_aout_output);
- device_create_file(&new_client->dev, &dev_attr_chassis_clear);
- device_create_file(&new_client->dev, &dev_attr_cpu0_vid);
+ err = sysfs_create_group(&new_client->dev.kobj, &adm9240_group);
+ if (err)
+ return err;
+
+ data->hwmon_dev = hwmon_device_register(&new_client->dev);
+ if (IS_ERR(data->hwmon_dev)) {
+ err = PTR_ERR(data->hwmon_dev);
+ goto exit_remove;
+ }
return 0;
-exit_free:
- kfree(new_client);
-exit:
- return err;
-}
-static int adm9240_attach_adapter(struct i2c_adapter *adapter)
-{
- if (!(adapter->class & I2C_CLASS_HWMON))
- return 0;
- return i2c_detect(adapter, &addr_data, adm9240_detect);
+exit_remove:
+ sysfs_remove_group(&new_client->dev.kobj, &adm9240_group);
+ return err;
}
-static int adm9240_detach_client(struct i2c_client *client)
+static int adm9240_remove(struct i2c_client *client)
{
- int err;
+ struct adm9240_data *data = i2c_get_clientdata(client);
- if ((err = i2c_detach_client(client))) {
- dev_err(&client->dev, "Client deregistration failed, "
- "client not detached.\n");
- return err;
- }
+ hwmon_device_unregister(data->hwmon_dev);
+ sysfs_remove_group(&client->dev.kobj, &adm9240_group);
- kfree(i2c_get_clientdata(client));
return 0;
}
static void adm9240_init_client(struct i2c_client *client)
{
struct adm9240_data *data = i2c_get_clientdata(client);
- u8 conf = adm9240_read_value(client, ADM9240_REG_CONFIG);
- u8 mode = adm9240_read_value(client, ADM9240_REG_TEMP_CONF) & 3;
+ u8 conf = i2c_smbus_read_byte_data(client, ADM9240_REG_CONFIG);
+ u8 mode = i2c_smbus_read_byte_data(client, ADM9240_REG_TEMP_CONF) & 3;
- data->vrm = i2c_which_vrm(); /* need this to report vid as mV */
+ data->vrm = vid_which_vrm(); /* need this to report vid as mV */
dev_info(&client->dev, "Using VRM: %d.%d\n", data->vrm / 10,
data->vrm % 10);
@@ -661,23 +682,26 @@ static void adm9240_init_client(struct i2c_client *client)
} else { /* cold start: open limits before starting chip */
int i;
- for (i = 0; i < 6; i++)
- {
- adm9240_write_value(client,
+ for (i = 0; i < 6; i++) {
+ i2c_smbus_write_byte_data(client,
ADM9240_REG_IN_MIN(i), 0);
- adm9240_write_value(client,
+ i2c_smbus_write_byte_data(client,
ADM9240_REG_IN_MAX(i), 255);
}
- adm9240_write_value(client, ADM9240_REG_FAN_MIN(0), 255);
- adm9240_write_value(client, ADM9240_REG_FAN_MIN(1), 255);
- adm9240_write_value(client, ADM9240_REG_TEMP_HIGH, 127);
- adm9240_write_value(client, ADM9240_REG_TEMP_HYST, 127);
+ i2c_smbus_write_byte_data(client,
+ ADM9240_REG_FAN_MIN(0), 255);
+ i2c_smbus_write_byte_data(client,
+ ADM9240_REG_FAN_MIN(1), 255);
+ i2c_smbus_write_byte_data(client,
+ ADM9240_REG_TEMP_MAX(0), 127);
+ i2c_smbus_write_byte_data(client,
+ ADM9240_REG_TEMP_MAX(1), 127);
/* start measurement cycle */
- adm9240_write_value(client, ADM9240_REG_CONFIG, 1);
+ i2c_smbus_write_byte_data(client, ADM9240_REG_CONFIG, 1);
- dev_info(&client->dev, "cold start: config was 0x%02x "
- "mode %u\n", conf, mode);
+ dev_info(&client->dev,
+ "cold start: config was 0x%02x mode %u\n", conf, mode);
}
}
@@ -687,33 +711,33 @@ static struct adm9240_data *adm9240_update_device(struct device *dev)
struct adm9240_data *data = i2c_get_clientdata(client);
int i;
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
/* minimum measurement cycle: 1.75 seconds */
if (time_after(jiffies, data->last_updated_measure + (HZ * 7 / 4))
|| !data->valid) {
- for (i = 0; i < 6; i++) /* read voltages */
- {
- data->in[i] = adm9240_read_value(client,
+ for (i = 0; i < 6; i++) { /* read voltages */
+ data->in[i] = i2c_smbus_read_byte_data(client,
ADM9240_REG_IN(i));
}
- data->alarms = adm9240_read_value(client,
+ data->alarms = i2c_smbus_read_byte_data(client,
ADM9240_REG_INT(0)) |
- adm9240_read_value(client,
+ i2c_smbus_read_byte_data(client,
ADM9240_REG_INT(1)) << 8;
- /* read temperature: assume temperature changes less than
+ /*
+ * read temperature: assume temperature changes less than
* 0.5'C per two measurement cycles thus ignore possible
- * but unlikely aliasing error on lsb reading. --Grant */
- data->temp = ((adm9240_read_value(client,
+ * but unlikely aliasing error on lsb reading. --Grant
+ */
+ data->temp = ((i2c_smbus_read_byte_data(client,
ADM9240_REG_TEMP) << 8) |
- adm9240_read_value(client,
+ i2c_smbus_read_byte_data(client,
ADM9240_REG_TEMP_CONF)) / 128;
- for (i = 0; i < 2; i++) /* read fans */
- {
- data->fan[i] = adm9240_read_value(client,
+ for (i = 0; i < 2; i++) { /* read fans */
+ data->fan[i] = i2c_smbus_read_byte_data(client,
ADM9240_REG_FAN(i));
/* adjust fan clock divider on overflow */
@@ -736,56 +760,42 @@ static struct adm9240_data *adm9240_update_device(struct device *dev)
if (time_after(jiffies, data->last_updated_config + (HZ * 300))
|| !data->valid) {
- for (i = 0; i < 6; i++)
- {
- data->in_min[i] = adm9240_read_value(client,
+ for (i = 0; i < 6; i++) {
+ data->in_min[i] = i2c_smbus_read_byte_data(client,
ADM9240_REG_IN_MIN(i));
- data->in_max[i] = adm9240_read_value(client,
+ data->in_max[i] = i2c_smbus_read_byte_data(client,
ADM9240_REG_IN_MAX(i));
}
- for (i = 0; i < 2; i++)
- {
- data->fan_min[i] = adm9240_read_value(client,
+ for (i = 0; i < 2; i++) {
+ data->fan_min[i] = i2c_smbus_read_byte_data(client,
ADM9240_REG_FAN_MIN(i));
}
- data->temp_high = adm9240_read_value(client,
- ADM9240_REG_TEMP_HIGH);
- data->temp_hyst = adm9240_read_value(client,
- ADM9240_REG_TEMP_HYST);
+ data->temp_max[0] = i2c_smbus_read_byte_data(client,
+ ADM9240_REG_TEMP_MAX(0));
+ data->temp_max[1] = i2c_smbus_read_byte_data(client,
+ ADM9240_REG_TEMP_MAX(1));
/* read fan divs and 5-bit VID */
- i = adm9240_read_value(client, ADM9240_REG_VID_FAN_DIV);
+ i = i2c_smbus_read_byte_data(client, ADM9240_REG_VID_FAN_DIV);
data->fan_div[0] = (i >> 4) & 3;
data->fan_div[1] = (i >> 6) & 3;
data->vid = i & 0x0f;
- data->vid |= (adm9240_read_value(client,
+ data->vid |= (i2c_smbus_read_byte_data(client,
ADM9240_REG_VID4) & 1) << 4;
/* read analog out */
- data->aout = adm9240_read_value(client,
+ data->aout = i2c_smbus_read_byte_data(client,
ADM9240_REG_ANALOG_OUT);
data->last_updated_config = jiffies;
data->valid = 1;
}
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return data;
}
-static int __init sensors_adm9240_init(void)
-{
- return i2c_add_driver(&adm9240_driver);
-}
-
-static void __exit sensors_adm9240_exit(void)
-{
- i2c_del_driver(&adm9240_driver);
-}
+module_i2c_driver(adm9240_driver);
MODULE_AUTHOR("Michiel Rook <michiel@grendelproject.nl>, "
- "Grant Coady <gcoady@gmail.com> and others");
+ "Grant Coady <gcoady.lk@gmail.com> and others");
MODULE_DESCRIPTION("ADM9240/DS1780/LM81 driver");
MODULE_LICENSE("GPL");
-
-module_init(sensors_adm9240_init);
-module_exit(sensors_adm9240_exit);
-
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-13 04:51:23 +0000