};
/*
- * Insmod parameters
- */
-
-I2C_CLIENT_INSMOD_1(adm1029);
-
-/*
* The ADM1029 registers
* Manufacturer ID is 0x41 for Analog Devices
*/
* Functions declaration
*/
-static int adm1029_attach_adapter(struct i2c_adapter *adapter);
-static int adm1029_detect(struct i2c_adapter *adapter, int address, int kind);
-static int adm1029_detach_client(struct i2c_client *client);
+static int adm1029_probe(struct i2c_client *client,
+ const struct i2c_device_id *id);
+static int adm1029_detect(struct i2c_client *client,
+ struct i2c_board_info *info);
+static int adm1029_remove(struct i2c_client *client);
static struct adm1029_data *adm1029_update_device(struct device *dev);
static int adm1029_init_client(struct i2c_client *client);
* Driver data (common to all clients)
*/
+static const struct i2c_device_id adm1029_id[] = {
+ { "adm1029", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, adm1029_id);
+
static struct i2c_driver adm1029_driver = {
+ .class = I2C_CLASS_HWMON,
.driver = {
.name = "adm1029",
},
- .attach_adapter = adm1029_attach_adapter,
- .detach_client = adm1029_detach_client,
+ .probe = adm1029_probe,
+ .remove = adm1029_remove,
+ .id_table = adm1029_id,
+ .detect = adm1029_detect,
+ .address_list = normal_i2c,
};
/*
*/
struct adm1029_data {
- struct i2c_client client;
struct device *hwmon_dev;
struct mutex update_lock;
char valid; /* zero until following fields are valid */
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct adm1029_data *data = adm1029_update_device(dev);
u16 val;
- if (data->fan[attr->index] == 0 || data->fan_div[attr->index] == 0
+ if (data->fan[attr->index] == 0
+ || (data->fan_div[attr->index] & 0xC0) == 0
|| data->fan[attr->index] == 255) {
return sprintf(buf, "0\n");
}
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct adm1029_data *data = adm1029_update_device(dev);
- if (data->fan_div[attr->index] == 0)
+ if ((data->fan_div[attr->index] & 0xC0) == 0)
return sprintf(buf, "0\n");
return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[attr->index]));
}
* Real code
*/
-static int adm1029_attach_adapter(struct i2c_adapter *adapter)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int adm1029_detect(struct i2c_client *client,
+ struct i2c_board_info *info)
{
- if (!(adapter->class & I2C_CLASS_HWMON))
- return 0;
- return i2c_probe(adapter, &addr_data, adm1029_detect);
-}
-
-/*
- * The following function does more than just detection. If detection
- * succeeds, it also registers the new chip.
- */
+ struct i2c_adapter *adapter = client->adapter;
+ u8 man_id, chip_id, temp_devices_installed, nb_fan_support;
-static int adm1029_detect(struct i2c_adapter *adapter, int address, int kind)
-{
- struct i2c_client *client;
- struct adm1029_data *data;
- int err = 0;
- const char *name = "";
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
- goto exit;
-
- if (!(data = kzalloc(sizeof(struct adm1029_data), GFP_KERNEL))) {
- err = -ENOMEM;
- goto exit;
- }
-
- client = &data->client;
- i2c_set_clientdata(client, data);
- client->addr = address;
- client->adapter = adapter;
- client->driver = &adm1029_driver;
-
- /* Now we do the detection and identification. A negative kind
- * means that the driver was loaded with no force parameter
- * (default), so we must both detect and identify the chip
- * (actually there is only one possible kind of chip for now, adm1029).
- * A zero kind means that the driver was loaded with the force
- * parameter, the detection step shall be skipped. A positive kind
- * means that the driver was loaded with the force parameter and a
- * given kind of chip is requested, so both the detection and the
- * identification steps are skipped. */
-
- /* Default to an adm1029 if forced */
- if (kind == 0)
- kind = adm1029;
+ return -ENODEV;
/* ADM1029 doesn't have CHIP ID, check just MAN ID
* For better detection we check also ADM1029_TEMP_DEVICES_INSTALLED,
* documented
*/
- if (kind <= 0) { /* identification */
- u8 man_id, chip_id, temp_devices_installed, nb_fan_support;
-
- man_id = i2c_smbus_read_byte_data(client, ADM1029_REG_MAN_ID);
- chip_id = i2c_smbus_read_byte_data(client, ADM1029_REG_CHIP_ID);
- temp_devices_installed = i2c_smbus_read_byte_data(client,
+ man_id = i2c_smbus_read_byte_data(client, ADM1029_REG_MAN_ID);
+ chip_id = i2c_smbus_read_byte_data(client, ADM1029_REG_CHIP_ID);
+ temp_devices_installed = i2c_smbus_read_byte_data(client,
ADM1029_REG_TEMP_DEVICES_INSTALLED);
- nb_fan_support = i2c_smbus_read_byte_data(client,
+ nb_fan_support = i2c_smbus_read_byte_data(client,
ADM1029_REG_NB_FAN_SUPPORT);
- /* 0x41 is Analog Devices */
- if (man_id == 0x41 && (temp_devices_installed & 0xf9) == 0x01
- && nb_fan_support == 0x03) {
- if ((chip_id & 0xF0) == 0x00) {
- kind = adm1029;
- } else {
- /* There are no "official" CHIP ID, so actually
- * we use Major/Minor revision for that */
- printk(KERN_INFO
- "adm1029: Unknown major revision %x, "
- "please let us know\n", chip_id);
- }
- }
-
- if (kind <= 0) { /* identification failed */
- pr_debug("adm1029: Unsupported chip (man_id=0x%02X, "
- "chip_id=0x%02X)\n", man_id, chip_id);
- goto exit_free;
- }
+ /* 0x41 is Analog Devices */
+ if (man_id != 0x41 || (temp_devices_installed & 0xf9) != 0x01
+ || nb_fan_support != 0x03)
+ return -ENODEV;
+
+ if ((chip_id & 0xF0) != 0x00) {
+ /* There are no "official" CHIP ID, so actually
+ * we use Major/Minor revision for that */
+ pr_info("adm1029: Unknown major revision %x, "
+ "please let us know\n", chip_id);
+ return -ENODEV;
}
- if (kind == adm1029) {
- name = "adm1029";
+ strlcpy(info->type, "adm1029", I2C_NAME_SIZE);
+
+ return 0;
+}
+
+static int adm1029_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct adm1029_data *data;
+ int err;
+
+ data = kzalloc(sizeof(struct adm1029_data), GFP_KERNEL);
+ if (!data) {
+ err = -ENOMEM;
+ goto exit;
}
- /* We can fill in the remaining client fields */
- strlcpy(client->name, name, I2C_NAME_SIZE);
+ i2c_set_clientdata(client, data);
mutex_init(&data->update_lock);
- /* Tell the I2C layer a new client has arrived */
- if ((err = i2c_attach_client(client)))
- goto exit_free;
-
/*
* Initialize the ADM1029 chip
* Check config register
*/
- if (adm1029_init_client(client) == 0)
- goto exit_detach;
+ if (adm1029_init_client(client) == 0) {
+ err = -ENODEV;
+ goto exit_free;
+ }
/* Register sysfs hooks */
if ((err = sysfs_create_group(&client->dev.kobj, &adm1029_group)))
- goto exit_detach;
+ goto exit_free;
data->hwmon_dev = hwmon_device_register(&client->dev);
if (IS_ERR(data->hwmon_dev)) {
exit_remove_files:
sysfs_remove_group(&client->dev.kobj, &adm1029_group);
- exit_detach:
- i2c_detach_client(client);
exit_free:
kfree(data);
exit:
return 1;
}
-static int adm1029_detach_client(struct i2c_client *client)
+static int adm1029_remove(struct i2c_client *client)
{
struct adm1029_data *data = i2c_get_clientdata(client);
- int err;
hwmon_device_unregister(data->hwmon_dev);
sysfs_remove_group(&client->dev.kobj, &adm1029_group);
- if ((err = i2c_detach_client(client)))
- return err;
-
kfree(data);
return 0;
}
/*
-function that update the status of the chips (temperature for exemple)
+function that update the status of the chips (temperature for example)
*/
static struct adm1029_data *adm1029_update_device(struct device *dev)
{
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff