static const u8 THMC50_REG_TEMP[] = { 0x27, 0x26, 0x20 };
static const u8 THMC50_REG_TEMP_MIN[] = { 0x3A, 0x38, 0x2C };
static const u8 THMC50_REG_TEMP_MAX[] = { 0x39, 0x37, 0x2B };
+static const u8 THMC50_REG_TEMP_CRITICAL[] = { 0x13, 0x14, 0x14 };
+static const u8 THMC50_REG_TEMP_DEFAULT[] = { 0x17, 0x18, 0x18 };
#define THMC50_REG_CONF_nFANOFF 0x20
+#define THMC50_REG_CONF_PROGRAMMED 0x08
/* Each client has this additional data */
struct thmc50_data {
- struct i2c_client client;
struct device *hwmon_dev;
struct mutex update_lock;
s8 temp_input[3];
s8 temp_max[3];
s8 temp_min[3];
+ s8 temp_critical[3];
u8 analog_out;
u8 alarms;
};
-static int thmc50_attach_adapter(struct i2c_adapter *adapter);
-static int thmc50_detach_client(struct i2c_client *client);
+static int thmc50_detect(struct i2c_client *client, int kind,
+ struct i2c_board_info *info);
+static int thmc50_probe(struct i2c_client *client,
+ const struct i2c_device_id *id);
+static int thmc50_remove(struct i2c_client *client);
static void thmc50_init_client(struct i2c_client *client);
static struct thmc50_data *thmc50_update_device(struct device *dev);
+static const struct i2c_device_id thmc50_id[] = {
+ { "adm1022", adm1022 },
+ { "thmc50", thmc50 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, thmc50_id);
+
static struct i2c_driver thmc50_driver = {
+ .class = I2C_CLASS_HWMON,
.driver = {
.name = "thmc50",
},
- .attach_adapter = thmc50_attach_adapter,
- .detach_client = thmc50_detach_client,
+ .probe = thmc50_probe,
+ .remove = thmc50_remove,
+ .id_table = thmc50_id,
+ .detect = thmc50_detect,
+ .address_data = &addr_data,
};
static ssize_t show_analog_out(struct device *dev,
return count;
}
+static ssize_t show_temp_critical(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ int nr = to_sensor_dev_attr(attr)->index;
+ struct thmc50_data *data = thmc50_update_device(dev);
+ return sprintf(buf, "%d\n", data->temp_critical[nr] * 1000);
+}
+
static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
char *buf)
{
static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \
show_temp_min, set_temp_min, offset - 1); \
static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \
- show_temp_max, set_temp_max, offset - 1);
+ show_temp_max, set_temp_max, offset - 1); \
+static SENSOR_DEVICE_ATTR(temp##offset##_crit, S_IRUGO, \
+ show_temp_critical, NULL, offset - 1);
temp_reg(1);
temp_reg(2);
&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_temp1_crit.dev_attr.attr,
&sensor_dev_attr_temp1_alarm.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,
+ &sensor_dev_attr_temp2_crit.dev_attr.attr,
&sensor_dev_attr_temp2_alarm.dev_attr.attr,
&sensor_dev_attr_temp2_fault.dev_attr.attr,
&sensor_dev_attr_pwm1.dev_attr.attr,
&sensor_dev_attr_temp3_max.dev_attr.attr,
&sensor_dev_attr_temp3_min.dev_attr.attr,
&sensor_dev_attr_temp3_input.dev_attr.attr,
+ &sensor_dev_attr_temp3_crit.dev_attr.attr,
&sensor_dev_attr_temp3_alarm.dev_attr.attr,
&sensor_dev_attr_temp3_fault.dev_attr.attr,
NULL
.attrs = temp3_attributes,
};
-static int thmc50_detect(struct i2c_adapter *adapter, int address, int kind)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int thmc50_detect(struct i2c_client *client, int kind,
+ struct i2c_board_info *info)
{
unsigned company;
unsigned revision;
unsigned config;
- struct i2c_client *client;
- struct thmc50_data *data;
- struct device *dev;
+ struct i2c_adapter *adapter = client->adapter;
int err = 0;
const char *type_name;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
pr_debug("thmc50: detect failed, "
"smbus byte data not supported!\n");
- goto exit;
- }
-
- /* 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 thmc50 registers. */
- if (!(data = kzalloc(sizeof(struct thmc50_data), GFP_KERNEL))) {
- pr_debug("thmc50: detect failed, kzalloc failed!\n");
- err = -ENOMEM;
- goto exit;
+ return -ENODEV;
}
- client = &data->client;
- i2c_set_clientdata(client, data);
- client->addr = address;
- client->adapter = adapter;
- client->driver = &thmc50_driver;
- dev = &client->dev;
-
pr_debug("thmc50: Probing for THMC50 at 0x%2X on bus %d\n",
client->addr, i2c_adapter_id(client->adapter));
}
if (err == -ENODEV) {
pr_debug("thmc50: Detection of THMC50/ADM1022 failed\n");
- goto exit_free;
+ return err;
}
- data->type = kind;
if (kind == adm1022) {
int id = i2c_adapter_id(client->adapter);
int i;
type_name = "adm1022";
- data->has_temp3 = (config >> 7) & 1; /* config MSB */
for (i = 0; i + 1 < adm1022_temp3_num; i += 2)
if (adm1022_temp3[i] == id &&
- adm1022_temp3[i + 1] == address) {
+ adm1022_temp3[i + 1] == client->addr) {
/* enable 2nd remote temp */
- data->has_temp3 = 1;
+ config |= (1 << 7);
+ i2c_smbus_write_byte_data(client,
+ THMC50_REG_CONF,
+ config);
break;
}
} else {
pr_debug("thmc50: Detected %s (version %x, revision %x)\n",
type_name, (revision >> 4) - 0xc, revision & 0xf);
- /* Fill in the remaining client fields & put it into the global list */
- strlcpy(client->name, type_name, I2C_NAME_SIZE);
- mutex_init(&data->update_lock);
+ strlcpy(info->type, type_name, I2C_NAME_SIZE);
- /* Tell the I2C layer a new client has arrived */
- if ((err = i2c_attach_client(client)))
- goto exit_free;
+ return 0;
+}
+
+static int thmc50_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct thmc50_data *data;
+ int err;
+
+ data = kzalloc(sizeof(struct thmc50_data), GFP_KERNEL);
+ if (!data) {
+ pr_debug("thmc50: detect failed, kzalloc failed!\n");
+ err = -ENOMEM;
+ goto exit;
+ }
+
+ i2c_set_clientdata(client, data);
+ data->type = id->driver_data;
+ mutex_init(&data->update_lock);
thmc50_init_client(client);
/* Register sysfs hooks */
if ((err = sysfs_create_group(&client->dev.kobj, &thmc50_group)))
- goto exit_detach;
+ goto exit_free;
/* Register ADM1022 sysfs hooks */
if (data->has_temp3)
sysfs_remove_group(&client->dev.kobj, &temp3_group);
exit_remove_sysfs_thmc50:
sysfs_remove_group(&client->dev.kobj, &thmc50_group);
-exit_detach:
- i2c_detach_client(client);
exit_free:
kfree(data);
exit:
return err;
}
-static int thmc50_attach_adapter(struct i2c_adapter *adapter)
-{
- if (!(adapter->class & I2C_CLASS_HWMON))
- return 0;
- return i2c_probe(adapter, &addr_data, thmc50_detect);
-}
-
-static int thmc50_detach_client(struct i2c_client *client)
+static int thmc50_remove(struct i2c_client *client)
{
struct thmc50_data *data = i2c_get_clientdata(client);
- int err;
hwmon_device_unregister(data->hwmon_dev);
sysfs_remove_group(&client->dev.kobj, &thmc50_group);
if (data->has_temp3)
sysfs_remove_group(&client->dev.kobj, &temp3_group);
- if ((err = i2c_detach_client(client)))
- return err;
-
kfree(data);
return 0;
}
config = i2c_smbus_read_byte_data(client, THMC50_REG_CONF);
config |= 0x1; /* start the chip if it is in standby mode */
- if (data->has_temp3)
- config |= 0x80; /* enable 2nd remote temp */
+ if (data->type == adm1022 && (config & (1 << 7)))
+ data->has_temp3 = 1;
i2c_smbus_write_byte_data(client, THMC50_REG_CONF, config);
}
int temps = data->has_temp3 ? 3 : 2;
int i;
+ int prog = i2c_smbus_read_byte_data(client, THMC50_REG_CONF);
+
+ prog &= THMC50_REG_CONF_PROGRAMMED;
+
for (i = 0; i < temps; i++) {
data->temp_input[i] = i2c_smbus_read_byte_data(client,
THMC50_REG_TEMP[i]);
THMC50_REG_TEMP_MAX[i]);
data->temp_min[i] = i2c_smbus_read_byte_data(client,
THMC50_REG_TEMP_MIN[i]);
+ data->temp_critical[i] =
+ i2c_smbus_read_byte_data(client,
+ prog ? THMC50_REG_TEMP_CRITICAL[i]
+ : THMC50_REG_TEMP_DEFAULT[i]);
}
data->analog_out =
i2c_smbus_read_byte_data(client, THMC50_REG_ANALOG_OUT);