#include <linux/slab.h>
#include <linux/jiffies.h>
#include <linux/i2c.h>
-#include <linux/i2c-sensor.h>
+#include <linux/hwmon.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/sysfs.h>
/*
* Addresses to scan
*/
static unsigned short normal_i2c[] = { 0x73, I2C_CLIENT_END };
-static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
/*
* Insmod parameters
*/
-SENSORS_INSMOD_1(fscher);
+I2C_CLIENT_INSMOD_1(fscher);
/*
* The FSCHER registers
*/
static struct i2c_driver fscher_driver = {
- .owner = THIS_MODULE,
- .name = "fscher",
+ .driver = {
+ .name = "fscher",
+ },
.id = I2C_DRIVERID_FSCHER,
- .flags = I2C_DF_NOTIFY,
.attach_adapter = fscher_attach_adapter,
.detach_client = fscher_detach_client,
};
struct fscher_data {
struct i2c_client client;
- struct semaphore update_lock;
+ struct device *hwmon_dev;
+ struct mutex update_lock;
char valid; /* zero until following fields are valid */
unsigned long last_updated; /* in jiffies */
sysfs_control(FSCHER_REG_CONTROL)
sysfs_watchdog(FSCHER_REG_WDOG_CONTROL, FSCHER_REG_WDOG_STATE, FSCHER_REG_WDOG_PRESET)
-#define device_create_file_fan(client, offset) \
-do { \
- device_create_file(&client->dev, &dev_attr_fan##offset##_status); \
- device_create_file(&client->dev, &dev_attr_pwm##offset); \
- device_create_file(&client->dev, &dev_attr_fan##offset##_div); \
- device_create_file(&client->dev, &dev_attr_fan##offset##_input); \
-} while (0)
-
-#define device_create_file_temp(client, offset) \
-do { \
- device_create_file(&client->dev, &dev_attr_temp##offset##_status); \
- device_create_file(&client->dev, &dev_attr_temp##offset##_input); \
-} while (0)
-
-#define device_create_file_in(client, offset) \
-do { \
- device_create_file(&client->dev, &dev_attr_in##offset##_input); \
-} while (0)
-
-#define device_create_file_revision(client) \
-do { \
- device_create_file(&client->dev, &dev_attr_revision); \
-} while (0)
-
-#define device_create_file_alarms(client) \
-do { \
- device_create_file(&client->dev, &dev_attr_alarms); \
-} while (0)
-
-#define device_create_file_control(client) \
-do { \
- device_create_file(&client->dev, &dev_attr_control); \
-} while (0)
-
-#define device_create_file_watchdog(client) \
-do { \
- device_create_file(&client->dev, &dev_attr_watchdog_status); \
- device_create_file(&client->dev, &dev_attr_watchdog_control); \
- device_create_file(&client->dev, &dev_attr_watchdog_preset); \
-} while (0)
-
+static struct attribute *fscher_attributes[] = {
+ &dev_attr_revision.attr,
+ &dev_attr_alarms.attr,
+ &dev_attr_control.attr,
+
+ &dev_attr_watchdog_status.attr,
+ &dev_attr_watchdog_control.attr,
+ &dev_attr_watchdog_preset.attr,
+
+ &dev_attr_in0_input.attr,
+ &dev_attr_in1_input.attr,
+ &dev_attr_in2_input.attr,
+
+ &dev_attr_fan1_status.attr,
+ &dev_attr_fan1_div.attr,
+ &dev_attr_fan1_input.attr,
+ &dev_attr_pwm1.attr,
+ &dev_attr_fan2_status.attr,
+ &dev_attr_fan2_div.attr,
+ &dev_attr_fan2_input.attr,
+ &dev_attr_pwm2.attr,
+ &dev_attr_fan3_status.attr,
+ &dev_attr_fan3_div.attr,
+ &dev_attr_fan3_input.attr,
+ &dev_attr_pwm3.attr,
+
+ &dev_attr_temp1_status.attr,
+ &dev_attr_temp1_input.attr,
+ &dev_attr_temp2_status.attr,
+ &dev_attr_temp2_input.attr,
+ &dev_attr_temp3_status.attr,
+ &dev_attr_temp3_input.attr,
+ NULL
+};
+
+static const struct attribute_group fscher_group = {
+ .attrs = fscher_attributes,
+};
+
/*
* Real code
*/
{
if (!(adapter->class & I2C_CLASS_HWMON))
return 0;
- return i2c_detect(adapter, &addr_data, fscher_detect);
+ return i2c_probe(adapter, &addr_data, fscher_detect);
}
static int fscher_detect(struct i2c_adapter *adapter, int address, int kind)
/* OK. For now, we presume we have a valid client. We now create the
* client structure, even though we cannot fill it completely yet.
* But it allows us to access i2c_smbus_read_byte_data. */
- if (!(data = kmalloc(sizeof(struct fscher_data), GFP_KERNEL))) {
+ if (!(data = kzalloc(sizeof(struct fscher_data), GFP_KERNEL))) {
err = -ENOMEM;
goto exit;
}
- memset(data, 0, sizeof(struct fscher_data));
/* The common I2C client data is placed right before the
* Hermes-specific data. */
* global list */
strlcpy(new_client->name, "fscher", I2C_NAME_SIZE);
data->valid = 0;
- init_MUTEX(&data->update_lock);
+ mutex_init(&data->update_lock);
/* Tell the I2C layer a new client has arrived */
if ((err = i2c_attach_client(new_client)))
fscher_init_client(new_client);
/* Register sysfs hooks */
- device_create_file_revision(new_client);
- device_create_file_alarms(new_client);
- device_create_file_control(new_client);
- device_create_file_watchdog(new_client);
-
- device_create_file_in(new_client, 0);
- device_create_file_in(new_client, 1);
- device_create_file_in(new_client, 2);
+ if ((err = sysfs_create_group(&new_client->dev.kobj, &fscher_group)))
+ goto exit_detach;
- device_create_file_fan(new_client, 1);
- device_create_file_fan(new_client, 2);
- device_create_file_fan(new_client, 3);
-
- device_create_file_temp(new_client, 1);
- device_create_file_temp(new_client, 2);
- device_create_file_temp(new_client, 3);
+ data->hwmon_dev = hwmon_device_register(&new_client->dev);
+ if (IS_ERR(data->hwmon_dev)) {
+ err = PTR_ERR(data->hwmon_dev);
+ goto exit_remove_files;
+ }
return 0;
+exit_remove_files:
+ sysfs_remove_group(&new_client->dev.kobj, &fscher_group);
+exit_detach:
+ i2c_detach_client(new_client);
exit_free:
kfree(data);
exit:
static int fscher_detach_client(struct i2c_client *client)
{
+ struct fscher_data *data = i2c_get_clientdata(client);
int err;
- if ((err = i2c_detach_client(client))) {
- dev_err(&client->dev, "Client deregistration failed, "
- "client not detached.\n");
+ hwmon_device_unregister(data->hwmon_dev);
+ sysfs_remove_group(&client->dev.kobj, &fscher_group);
+
+ if ((err = i2c_detach_client(client)))
return err;
- }
- kfree(i2c_get_clientdata(client));
+ kfree(data);
return 0;
}
struct i2c_client *client = to_i2c_client(dev);
struct fscher_data *data = i2c_get_clientdata(client);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
if (time_after(jiffies, data->last_updated + 2 * HZ) || !data->valid) {
data->watchdog[2] = fscher_read_value(client, FSCHER_REG_WDOG_CONTROL);
data->global_event = fscher_read_value(client, FSCHER_REG_EVENT_STATE);
+ data->global_control = fscher_read_value(client,
+ FSCHER_REG_CONTROL);
data->last_updated = jiffies;
data->valid = 1;
}
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return data;
}
/* bits 0..1, 3..7 reserved => mask with 0x04 */
unsigned long v = simple_strtoul(buf, NULL, 10) & 0x04;
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->fan_status[FAN_INDEX_FROM_NUM(nr)] &= ~v;
fscher_write_value(client, reg, v);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
{
unsigned long v = simple_strtoul(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->fan_min[FAN_INDEX_FROM_NUM(nr)] = v > 0xff ? 0xff : v;
fscher_write_value(client, reg, data->fan_min[FAN_INDEX_FROM_NUM(nr)]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
return -EINVAL;
}
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
/* bits 2..7 reserved => mask with 0x03 */
data->fan_ripple[FAN_INDEX_FROM_NUM(nr)] &= ~0x03;
data->fan_ripple[FAN_INDEX_FROM_NUM(nr)] |= v;
fscher_write_value(client, reg, data->fan_ripple[FAN_INDEX_FROM_NUM(nr)]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
/* bits 2..7 reserved, 0 read only => mask with 0x02 */
unsigned long v = simple_strtoul(buf, NULL, 10) & 0x02;
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->temp_status[TEMP_INDEX_FROM_NUM(nr)] &= ~v;
fscher_write_value(client, reg, v);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
/* bits 1..7 reserved => mask with 0x01 */
unsigned long v = simple_strtoul(buf, NULL, 10) & 0x01;
- down(&data->update_lock);
- data->global_control &= ~v;
+ mutex_lock(&data->update_lock);
+ data->global_control = v;
fscher_write_value(client, reg, v);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
/* bits 0..3 reserved => mask with 0xf0 */
unsigned long v = simple_strtoul(buf, NULL, 10) & 0xf0;
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->watchdog[2] &= ~0xf0;
data->watchdog[2] |= v;
fscher_write_value(client, reg, data->watchdog[2]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
/* bits 0, 2..7 reserved => mask with 0x02 */
unsigned long v = simple_strtoul(buf, NULL, 10) & 0x02;
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->watchdog[1] &= ~v;
fscher_write_value(client, reg, v);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
{
unsigned long v = simple_strtoul(buf, NULL, 10) & 0xff;
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->watchdog[0] = v;
fscher_write_value(client, reg, data->watchdog[0]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
projects / linux-2.6 / blobdiff