From: Krzysztof Helt <krzysztof.h1 at wp.pl>
This is conversion of the driver to the dynamic sysfs callbacks.
Signed-off-by: Krzysztof Helt <krzysztof.h1 at wp.pl>
---
This is the patch I posted some time ago.
This revision is redone after applying the patch which fixes negative
value writes.
Regards,
Krzysztof
--- linux-2.6.23.orig/drivers/hwmon/adm1021.c 2007-09-02 13:11:35.000000000 +0200
+++ linux-2.6.23/drivers/hwmon/adm1021.c 2007-09-02 13:17:32.878031937 +0200
@@ -25,6 +25,7 @@
#include <linux/jiffies.h>
#include <linux/i2c.h>
#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
#include <linux/err.h>
#include <linux/mutex.h>
@@ -73,14 +74,6 @@ I2C_CLIENT_INSMOD_8(adm1021, adm1023, ma
/* write-only */
#define ADM1021_REG_ONESHOT 0x0F
-
-/* Conversions. Rounding and limit checking is only done on the TO_REG
- variants. Note that you should be a bit careful with which arguments
- these macros are called: arguments may be evaluated more than once.
- Fixing this is just not worth it. */
-/* Conversions note: 1021 uses normal integer signed-byte format*/
-#define TEMP_TO_REG(val) SENSORS_LIMIT((val) / 1000, -128, 127)
-
/* Initial values */
/* Note: Even though I left the low and high limits named os and hyst,
@@ -98,19 +91,16 @@ struct adm1021_data {
char valid; /* !=0 if following fields are valid */
unsigned long last_updated; /* In jiffies */
- s8 temp_max; /* Register values */
- s8 temp_hyst;
- s8 temp_input;
- s8 remote_temp_max;
- s8 remote_temp_hyst;
- s8 remote_temp_input;
- u8 alarms;
- /* Special values for ADM1023 only */
- u8 remote_temp_prec;
- u8 remote_temp_os_prec;
- u8 remote_temp_hyst_prec;
- u8 remote_temp_offset;
- u8 remote_temp_offset_prec;
+ s8 temp_max[2]; /* Register values */
+ s8 temp_min[2];
+ s8 temp[2];
+ u8 alarms;
+ /* Special values for ADM1023 only */
+ u8 remote_temp_prec;
+ u8 remote_temp_os_prec;
+ u8 remote_temp_hyst_prec;
+ u8 remote_temp_offset;
+ u8 remote_temp_offset_prec;
};
static int adm1021_attach_adapter(struct i2c_adapter *adapter);
@@ -133,19 +123,32 @@ static struct i2c_driver adm1021_driver
.detach_client = adm1021_detach_client,
};
-#define show(value) \
-static ssize_t show_##value(struct device *dev, \
- struct device_attribute *attr, char *buf) \
-{ \
- struct adm1021_data *data = adm1021_update_device(dev); \
- return sprintf(buf, "%d\n", 1000 * data->value); \
-}
-show(temp_max);
-show(temp_hyst);
-show(temp_input);
-show(remote_temp_max);
-show(remote_temp_hyst);
-show(remote_temp_input);
+static ssize_t show_temp(struct device *dev,
+ struct device_attribute *devattr, char *buf)
+{
+ int index = to_sensor_dev_attr(devattr)->index;
+ struct adm1021_data *data = adm1021_update_device(dev);
+
+ return sprintf(buf, "%d\n", 1000 * data->temp[index]);
+}
+
+static ssize_t show_temp_max(struct device *dev,
+ struct device_attribute *devattr, char *buf)
+{
+ int index = to_sensor_dev_attr(devattr)->index;
+ struct adm1021_data *data = adm1021_update_device(dev);
+
+ return sprintf(buf, "%d\n", 1000 * data->temp_max[index]);
+}
+
+static ssize_t show_temp_min(struct device *dev,
+ struct device_attribute *devattr, char *buf)
+{
+ int index = to_sensor_dev_attr(devattr)->index;
+ struct adm1021_data *data = adm1021_update_device(dev);
+
+ return sprintf(buf, "%d\n", 1000 * data->temp_min[index]);
+}
static ssize_t show_alarms(struct device *dev,
struct device_attribute *attr,
@@ -155,35 +158,52 @@ static ssize_t show_alarms(struct device
return sprintf(buf, "%u\n", data->alarms);
}
-#define set(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 adm1021_data *data = i2c_get_clientdata(client); \
- long temp = simple_strtol(buf, NULL, 10); \
- \
- mutex_lock(&data->update_lock); \
- data->value = TEMP_TO_REG(temp); \
- if (!read_only) \
- i2c_smbus_write_byte_data(client, reg, data->value); \
- mutex_unlock(&data->update_lock); \
- return count; \
-}
-set(temp_max, ADM1021_REG_TOS_W);
-set(temp_hyst, ADM1021_REG_THYST_W);
-set(remote_temp_max, ADM1021_REG_REMOTE_TOS_W);
-set(remote_temp_hyst, ADM1021_REG_REMOTE_THYST_W);
-
-static DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_max, set_temp_max);
-static DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp_hyst, set_temp_hyst);
-static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp_input, NULL);
-static DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_remote_temp_max, set_remote_temp_max);
-static DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_remote_temp_hyst, set_remote_temp_hyst);
-static DEVICE_ATTR(temp2_input, S_IRUGO, show_remote_temp_input, NULL);
-static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
+static ssize_t set_temp_max(struct device *dev,
+ struct device_attribute *devattr,
+ const char *buf, size_t count)
+{
+ int index = to_sensor_dev_attr(devattr)->index;
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1021_data *data = i2c_get_clientdata(client);
+ long temp = simple_strtol(buf, NULL, 10) / 1000;
+ mutex_lock(&data->update_lock);
+ data->temp_max[index] = SENSORS_LIMIT(temp, -128, 127);
+ i2c_smbus_write_byte_data(client, ADM1021_REG_TOS_W + 2 * index, temp);
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+static ssize_t set_temp_min(struct device *dev,
+ struct device_attribute *devattr,
+ const char *buf, size_t count)
+{
+ int index = to_sensor_dev_attr(devattr)->index;
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1021_data *data = i2c_get_clientdata(client);
+ long temp = simple_strtol(buf, NULL, 10) / 1000;
+
+ mutex_lock(&data->update_lock);
+ data->temp_max[index] = SENSORS_LIMIT(temp, -128, 127);
+ i2c_smbus_write_byte_data(client,
+ ADM1021_REG_THYST_W + 2 * index, temp);
+ mutex_unlock(&data->update_lock);
+
+ return count;
+}
+
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_max,
+ set_temp_max, 0);
+static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp_min,
+ set_temp_min, 0);
+static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp_max,
+ set_temp_max, 1);
+static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp_min,
+ set_temp_min, 1);
+static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
static int adm1021_attach_adapter(struct i2c_adapter *adapter)
{
@@ -193,12 +213,12 @@ static int adm1021_attach_adapter(struct
}
static struct attribute *adm1021_attributes[] = {
- &dev_attr_temp1_max.attr,
- &dev_attr_temp1_min.attr,
- &dev_attr_temp1_input.attr,
- &dev_attr_temp2_max.attr,
- &dev_attr_temp2_min.attr,
- &dev_attr_temp2_input.attr,
+ &sensor_dev_attr_temp1_max.dev_attr.attr,
+ &sensor_dev_attr_temp1_min.dev_attr.attr,
+ &sensor_dev_attr_temp1_input.dev_attr.attr,
+ &sensor_dev_attr_temp2_max.dev_attr.attr,
+ &sensor_dev_attr_temp2_min.dev_attr.attr,
+ &sensor_dev_attr_temp2_input.dev_attr.attr,
&dev_attr_alarms.attr,
NULL
};
@@ -370,21 +390,22 @@ static struct adm1021_data *adm1021_upda
if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
|| !data->valid) {
+ int i;
+
dev_dbg(&client->dev, "Starting adm1021 update\n");
- data->temp_input = i2c_smbus_read_byte_data(client,
- ADM1021_REG_TEMP);
- data->temp_max = i2c_smbus_read_byte_data(client,
- ADM1021_REG_TOS_R);
- data->temp_hyst = i2c_smbus_read_byte_data(client,
- ADM1021_REG_THYST_R);
- data->remote_temp_input = i2c_smbus_read_byte_data(client,
- ADM1021_REG_REMOTE_TEMP);
- data->remote_temp_max = i2c_smbus_read_byte_data(client,
- ADM1021_REG_REMOTE_TOS_R);
- data->remote_temp_hyst = i2c_smbus_read_byte_data(client,
- ADM1021_REG_REMOTE_THYST_R);
- data->alarms = i2c_smbus_read_byte_data(client,
+ for (i = 0; i < 2; i++) {
+ data->temp[i] = i2c_smbus_read_byte_data(client,
+ ADM1021_REG_TEMP + i);
+ data->temp_max[i] =
+ i2c_smbus_read_byte_data(client,
+ ADM1021_REG_TOS_R + 2 * i);
+ data->temp_min[i] =
+ i2c_smbus_read_byte_data(client,
+ ADM1021_REG_THYST_R + 2 * i);
+ }
+ data->alarms =
+ i2c_smbus_read_byte_data(client,
ADM1021_REG_STATUS) & 0x7c;
if (data->type == adm1023) {
data->remote_temp_prec =
