/* Addresses to scan */
static const unsigned short normal_i2c[] = { 0x2C, 0x2D, 0x2E, I2C_CLIENT_END };
-/* Insmod parameters */
-I2C_CLIENT_INSMOD_1(adt7473);
-
/* ADT7473 registers */
#define ADT7473_REG_BASE_ADDR 0x20
#define FAN_DATA_VALID(x) ((x) && (x) != FAN_PERIOD_INVALID)
struct adt7473_data {
- struct i2c_client client;
struct device *hwmon_dev;
struct attribute_group attrs;
struct mutex lock;
u8 max_duty_at_overheat;
};
-static int adt7473_attach_adapter(struct i2c_adapter *adapter);
-static int adt7473_detect(struct i2c_adapter *adapter, int address, int kind);
-static int adt7473_detach_client(struct i2c_client *client);
+static int adt7473_probe(struct i2c_client *client,
+ const struct i2c_device_id *id);
+static int adt7473_detect(struct i2c_client *client,
+ struct i2c_board_info *info);
+static int adt7473_remove(struct i2c_client *client);
+
+static const struct i2c_device_id adt7473_id[] = {
+ { "adt7473", 0 },
+ { }
+};
static struct i2c_driver adt7473_driver = {
+ .class = I2C_CLASS_HWMON,
.driver = {
.name = "adt7473",
},
- .attach_adapter = adt7473_attach_adapter,
- .detach_client = adt7473_detach_client,
+ .probe = adt7473_probe,
+ .remove = adt7473_remove,
+ .id_table = adt7473_id,
+ .detect = adt7473_detect,
+ .address_list = normal_i2c,
};
/*
}
/*
- * On this chip, voltages are given as a count of steps between a minimum
- * and maximum voltage, not a direct voltage.
+ * Conversions
*/
-static const int volt_convert_table[][2] = {
- {2997, 3},
- {4395, 4},
+
+/* IN are scaled acording to built-in resistors */
+static const int adt7473_scaling[] = { /* .001 Volts */
+ 2250, 3300
};
+#define SCALE(val, from, to) (((val) * (to) + ((from) / 2)) / (from))
static int decode_volt(int volt_index, u8 raw)
{
- int cmax = volt_convert_table[volt_index][0];
- int cmin = volt_convert_table[volt_index][1];
- return ((raw * (cmax - cmin)) / 255) + cmin;
+ return SCALE(raw, 192, adt7473_scaling[volt_index]);
}
static u8 encode_volt(int volt_index, int cooked)
{
- int cmax = volt_convert_table[volt_index][0];
- int cmin = volt_convert_table[volt_index][1];
- u8 x;
-
- if (cooked > cmax)
- cooked = cmax;
- else if (cooked < cmin)
- cooked = cmin;
-
- x = ((cooked - cmin) * 255) / (cmax - cmin);
-
- return x;
+ int raw = SCALE(cooked, adt7473_scaling[volt_index], 192);
+ return SENSORS_LIMIT(raw, 0, 255);
}
static ssize_t show_volt_min(struct device *dev,
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct i2c_client *client = to_i2c_client(dev);
struct adt7473_data *data = i2c_get_clientdata(client);
- int volt = encode_volt(attr->index, simple_strtol(buf, NULL, 10));
+ long volt;
+
+ if (strict_strtol(buf, 10, &volt))
+ return -EINVAL;
+
+ volt = encode_volt(attr->index, volt);
mutex_lock(&data->lock);
data->volt_min[attr->index] = volt;
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct i2c_client *client = to_i2c_client(dev);
struct adt7473_data *data = i2c_get_clientdata(client);
- int volt = encode_volt(attr->index, simple_strtol(buf, NULL, 10));
+ long volt;
+
+ if (strict_strtol(buf, 10, &volt))
+ return -EINVAL;
+
+ volt = encode_volt(attr->index, volt);
mutex_lock(&data->lock);
data->volt_max[attr->index] = volt;
static u8 encode_temp(u8 twos_complement, int cooked)
{
- return twos_complement ? cooked & 0xFF : cooked + 64;
+ u8 ret = twos_complement ? cooked & 0xFF : cooked + 64;
+ return SENSORS_LIMIT(ret, 0, 255);
}
static ssize_t show_temp_min(struct device *dev,
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct i2c_client *client = to_i2c_client(dev);
struct adt7473_data *data = i2c_get_clientdata(client);
- int temp = simple_strtol(buf, NULL, 10) / 1000;
+ long temp;
+
+ if (strict_strtol(buf, 10, &temp))
+ return -EINVAL;
+
+ temp = DIV_ROUND_CLOSEST(temp, 1000);
temp = encode_temp(data->temp_twos_complement, temp);
mutex_lock(&data->lock);
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct i2c_client *client = to_i2c_client(dev);
struct adt7473_data *data = i2c_get_clientdata(client);
- int temp = simple_strtol(buf, NULL, 10) / 1000;
+ long temp;
+
+ if (strict_strtol(buf, 10, &temp))
+ return -EINVAL;
+
+ temp = DIV_ROUND_CLOSEST(temp, 1000);
temp = encode_temp(data->temp_twos_complement, temp);
mutex_lock(&data->lock);
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct i2c_client *client = to_i2c_client(dev);
struct adt7473_data *data = i2c_get_clientdata(client);
- int temp = simple_strtol(buf, NULL, 10);
+ long temp;
- if (!temp)
+ if (strict_strtol(buf, 10, &temp) || !temp)
return -EINVAL;
+
temp = FAN_RPM_TO_PERIOD(temp);
+ temp = SENSORS_LIMIT(temp, 1, 65534);
mutex_lock(&data->lock);
data->fan_min[attr->index] = temp;
u8 reg;
struct i2c_client *client = to_i2c_client(dev);
struct adt7473_data *data = i2c_get_clientdata(client);
- int temp = simple_strtol(buf, NULL, 10);
+ long temp;
+
+ if (strict_strtol(buf, 10, &temp))
+ return -EINVAL;
mutex_lock(&data->lock);
data->max_duty_at_overheat = !!temp;
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct i2c_client *client = to_i2c_client(dev);
struct adt7473_data *data = i2c_get_clientdata(client);
- int temp = simple_strtol(buf, NULL, 10);
+ long temp;
+
+ if (strict_strtol(buf, 10, &temp))
+ return -EINVAL;
+
+ temp = SENSORS_LIMIT(temp, 0, 255);
mutex_lock(&data->lock);
data->pwm[attr->index] = temp;
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct i2c_client *client = to_i2c_client(dev);
struct adt7473_data *data = i2c_get_clientdata(client);
- int temp = simple_strtol(buf, NULL, 10);
+ long temp;
+
+ if (strict_strtol(buf, 10, &temp))
+ return -EINVAL;
+
+ temp = SENSORS_LIMIT(temp, 0, 255);
mutex_lock(&data->lock);
data->pwm_max[attr->index] = temp;
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct i2c_client *client = to_i2c_client(dev);
struct adt7473_data *data = i2c_get_clientdata(client);
- int temp = simple_strtol(buf, NULL, 10);
+ long temp;
+
+ if (strict_strtol(buf, 10, &temp))
+ return -EINVAL;
+
+ temp = SENSORS_LIMIT(temp, 0, 255);
mutex_lock(&data->lock);
data->pwm_min[attr->index] = temp;
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct i2c_client *client = to_i2c_client(dev);
struct adt7473_data *data = i2c_get_clientdata(client);
- int temp = simple_strtol(buf, NULL, 10) / 1000;
+ long temp;
+
+ if (strict_strtol(buf, 10, &temp))
+ return -EINVAL;
+
+ temp = DIV_ROUND_CLOSEST(temp, 1000);
temp = encode_temp(data->temp_twos_complement, temp);
mutex_lock(&data->lock);
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct i2c_client *client = to_i2c_client(dev);
struct adt7473_data *data = i2c_get_clientdata(client);
- int temp = simple_strtol(buf, NULL, 10) / 1000;
+ long temp;
+
+ if (strict_strtol(buf, 10, &temp))
+ return -EINVAL;
+
+ temp = DIV_ROUND_CLOSEST(temp, 1000);
temp = encode_temp(data->temp_twos_complement, temp);
mutex_lock(&data->lock);
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct i2c_client *client = to_i2c_client(dev);
struct adt7473_data *data = i2c_get_clientdata(client);
- int temp = simple_strtol(buf, NULL, 10);
+ long temp;
+
+ if (strict_strtol(buf, 10, &temp))
+ return -EINVAL;
switch (temp) {
case 0:
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct i2c_client *client = to_i2c_client(dev);
struct adt7473_data *data = i2c_get_clientdata(client);
- int temp = simple_strtol(buf, NULL, 10);
+ long temp;
+
+ if (strict_strtol(buf, 10, &temp))
+ return -EINVAL;
switch (temp) {
case 1:
NULL
};
-static int adt7473_attach_adapter(struct i2c_adapter *adapter)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int adt7473_detect(struct i2c_client *client,
+ struct i2c_board_info *info)
{
- if (!(adapter->class & I2C_CLASS_HWMON))
- return 0;
- return i2c_probe(adapter, &addr_data, adt7473_detect);
+ struct i2c_adapter *adapter = client->adapter;
+ int vendor, device, revision;
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ return -ENODEV;
+
+ vendor = i2c_smbus_read_byte_data(client, ADT7473_REG_VENDOR);
+ if (vendor != ADT7473_VENDOR)
+ return -ENODEV;
+
+ device = i2c_smbus_read_byte_data(client, ADT7473_REG_DEVICE);
+ if (device != ADT7473_DEVICE)
+ return -ENODEV;
+
+ revision = i2c_smbus_read_byte_data(client, ADT7473_REG_REVISION);
+ if (revision != ADT7473_REV_68 && revision != ADT7473_REV_69)
+ return -ENODEV;
+
+ strlcpy(info->type, "adt7473", I2C_NAME_SIZE);
+
+ return 0;
}
-static int adt7473_detect(struct i2c_adapter *adapter, int address, int kind)
+static int adt7473_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
{
- struct i2c_client *client;
struct adt7473_data *data;
- int err = 0;
-
- if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
- goto exit;
+ int err;
data = kzalloc(sizeof(struct adt7473_data), GFP_KERNEL);
if (!data) {
goto exit;
}
- client = &data->client;
- client->addr = address;
- client->adapter = adapter;
- client->driver = &adt7473_driver;
-
i2c_set_clientdata(client, data);
-
mutex_init(&data->lock);
- if (kind <= 0) {
- int vendor, device, revision;
-
- vendor = i2c_smbus_read_byte_data(client, ADT7473_REG_VENDOR);
- if (vendor != ADT7473_VENDOR) {
- err = -ENODEV;
- goto exit_free;
- }
-
- device = i2c_smbus_read_byte_data(client, ADT7473_REG_DEVICE);
- if (device != ADT7473_DEVICE) {
- err = -ENODEV;
- goto exit_free;
- }
-
- revision = i2c_smbus_read_byte_data(client,
- ADT7473_REG_REVISION);
- if (revision != ADT7473_REV_68 && revision != ADT7473_REV_69) {
- err = -ENODEV;
- goto exit_free;
- }
- } else
- dev_dbg(&adapter->dev, "detection forced\n");
-
- strlcpy(client->name, "adt7473", I2C_NAME_SIZE);
-
- err = i2c_attach_client(client);
- if (err)
- goto exit_free;
-
dev_info(&client->dev, "%s chip found\n", client->name);
/* Initialize the ADT7473 chip */
data->attrs.attrs = adt7473_attr;
err = sysfs_create_group(&client->dev.kobj, &data->attrs);
if (err)
- goto exit_detach;
+ goto exit_free;
data->hwmon_dev = hwmon_device_register(&client->dev);
if (IS_ERR(data->hwmon_dev)) {
exit_remove:
sysfs_remove_group(&client->dev.kobj, &data->attrs);
-exit_detach:
- i2c_detach_client(client);
exit_free:
kfree(data);
exit:
return err;
}
-static int adt7473_detach_client(struct i2c_client *client)
+static int adt7473_remove(struct i2c_client *client)
{
struct adt7473_data *data = i2c_get_clientdata(client);
hwmon_device_unregister(data->hwmon_dev);
sysfs_remove_group(&client->dev.kobj, &data->attrs);
- i2c_detach_client(client);
kfree(data);
return 0;
}
static int __init adt7473_init(void)
{
+ pr_notice("The adt7473 driver is deprecated, please use the adt7475 "
+ "driver instead\n");
return i2c_add_driver(&adt7473_driver);
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff