static const unsigned short normal_i2c[] = {
0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, 0x4d, 0x4e, I2C_CLIENT_END };
-/* Insmod parameters */
-I2C_CLIENT_INSMOD_8(adm1021, adm1023, max1617, max1617a, thmc10, lm84, gl523sm,
- mc1066);
+enum chips {
+ adm1021, adm1023, max1617, max1617a, thmc10, lm84, gl523sm, mc1066 };
/* adm1021 constants specified below */
/* Each client has this additional data */
struct adm1021_data {
- struct i2c_client client;
struct device *hwmon_dev;
enum chips type;
struct mutex update_lock;
char valid; /* !=0 if following fields are valid */
+ char low_power; /* !=0 if device in low power mode */
unsigned long last_updated; /* In jiffies */
- s8 temp_max[2]; /* Register values */
- s8 temp_min[2];
- s8 temp[2];
+ int temp_max[2]; /* Register values */
+ int temp_min[2];
+ int 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);
-static int adm1021_detect(struct i2c_adapter *adapter, int address, int kind);
+static int adm1021_probe(struct i2c_client *client,
+ const struct i2c_device_id *id);
+static int adm1021_detect(struct i2c_client *client,
+ struct i2c_board_info *info);
static void adm1021_init_client(struct i2c_client *client);
-static int adm1021_detach_client(struct i2c_client *client);
+static int adm1021_remove(struct i2c_client *client);
static struct adm1021_data *adm1021_update_device(struct device *dev);
/* (amalysh) read only mode, otherwise any limit's writing confuse BIOS */
static int read_only;
+static const struct i2c_device_id adm1021_id[] = {
+ { "adm1021", adm1021 },
+ { "adm1023", adm1023 },
+ { "max1617", max1617 },
+ { "max1617a", max1617a },
+ { "thmc10", thmc10 },
+ { "lm84", lm84 },
+ { "gl523sm", gl523sm },
+ { "mc1066", mc1066 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, adm1021_id);
+
/* This is the driver that will be inserted */
static struct i2c_driver adm1021_driver = {
+ .class = I2C_CLASS_HWMON,
.driver = {
.name = "adm1021",
},
- .attach_adapter = adm1021_attach_adapter,
- .detach_client = adm1021_detach_client,
+ .probe = adm1021_probe,
+ .remove = adm1021_remove,
+ .id_table = adm1021_id,
+ .detect = adm1021_detect,
+ .address_list = normal_i2c,
};
static ssize_t show_temp(struct device *dev,
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]);
+ return sprintf(buf, "%d\n", data->temp[index]);
}
static ssize_t show_temp_max(struct device *dev,
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]);
+ return sprintf(buf, "%d\n", data->temp_max[index]);
}
static ssize_t show_temp_min(struct device *dev,
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]);
+ return sprintf(buf, "%d\n", data->temp_min[index]);
}
static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
return count;
}
+static ssize_t show_low_power(struct device *dev,
+ struct device_attribute *devattr, char *buf)
+{
+ struct adm1021_data *data = adm1021_update_device(dev);
+ return sprintf(buf, "%d\n", data->low_power);
+}
+
+static ssize_t set_low_power(struct device *dev,
+ struct device_attribute *devattr,
+ const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct adm1021_data *data = i2c_get_clientdata(client);
+ int low_power = simple_strtol(buf, NULL, 10) != 0;
+
+ mutex_lock(&data->update_lock);
+ if (low_power != data->low_power) {
+ int config = i2c_smbus_read_byte_data(
+ client, ADM1021_REG_CONFIG_R);
+ data->low_power = low_power;
+ i2c_smbus_write_byte_data(client, ADM1021_REG_CONFIG_W,
+ (config & 0xBF) | (low_power << 6));
+ }
+ 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(temp2_fault, S_IRUGO, show_alarm, NULL, 2);
static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
-
-static int adm1021_attach_adapter(struct i2c_adapter *adapter)
-{
- if (!(adapter->class & I2C_CLASS_HWMON))
- return 0;
- return i2c_probe(adapter, &addr_data, adm1021_detect);
-}
+static DEVICE_ATTR(low_power, S_IWUSR | S_IRUGO, show_low_power, set_low_power);
static struct attribute *adm1021_attributes[] = {
&sensor_dev_attr_temp1_max.dev_attr.attr,
&sensor_dev_attr_temp2_min_alarm.dev_attr.attr,
&sensor_dev_attr_temp2_fault.dev_attr.attr,
&dev_attr_alarms.attr,
+ &dev_attr_low_power.attr,
NULL
};
.attrs = adm1021_attributes,
};
-static int adm1021_detect(struct i2c_adapter *adapter, int address, int kind)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int adm1021_detect(struct i2c_client *client,
+ struct i2c_board_info *info)
{
- int i;
- struct i2c_client *client;
- struct adm1021_data *data;
- int err = 0;
- const char *type_name = "";
- int conv_rate, status, config;
+ struct i2c_adapter *adapter = client->adapter;
+ const char *type_name;
+ int conv_rate, status, config, man_id, dev_id;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
pr_debug("adm1021: detect failed, "
"smbus byte data not supported!\n");
- goto error0;
+ return -ENODEV;
}
- /* 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 adm1021 register values. */
-
- if (!(data = kzalloc(sizeof(struct adm1021_data), GFP_KERNEL))) {
- pr_debug("adm1021: detect failed, kzalloc failed!\n");
- err = -ENOMEM;
- goto error0;
- }
-
- client = &data->client;
- i2c_set_clientdata(client, data);
- client->addr = address;
- client->adapter = adapter;
- client->driver = &adm1021_driver;
status = i2c_smbus_read_byte_data(client, ADM1021_REG_STATUS);
conv_rate = i2c_smbus_read_byte_data(client,
ADM1021_REG_CONV_RATE_R);
config = i2c_smbus_read_byte_data(client, ADM1021_REG_CONFIG_R);
- /* Now, we do the remaining detection. */
- if (kind < 0) {
- if ((status & 0x03) != 0x00 || (config & 0x3F) != 0x00
- || (conv_rate & 0xF8) != 0x00) {
- pr_debug("adm1021: detect failed, "
- "chip not detected!\n");
- err = -ENODEV;
- goto error1;
- }
+ /* Check unused bits */
+ if ((status & 0x03) || (config & 0x3F) || (conv_rate & 0xF8)) {
+ pr_debug("adm1021: detect failed, chip not detected!\n");
+ return -ENODEV;
}
/* Determine the chip type. */
- if (kind <= 0) {
- i = i2c_smbus_read_byte_data(client, ADM1021_REG_MAN_ID);
- if (i == 0x41)
- if ((i2c_smbus_read_byte_data(client,
- ADM1021_REG_DEV_ID) & 0xF0) == 0x30)
- kind = adm1023;
- else
- kind = adm1021;
- else if (i == 0x49)
- kind = thmc10;
- else if (i == 0x23)
- kind = gl523sm;
- else if ((i == 0x4d) &&
- (i2c_smbus_read_byte_data(client,
- ADM1021_REG_DEV_ID) == 0x01))
- kind = max1617a;
- else if (i == 0x54)
- kind = mc1066;
- /* LM84 Mfr ID in a different place, and it has more unused bits */
- else if (conv_rate == 0x00
- && (kind == 0 /* skip extra detection */
- || ((config & 0x7F) == 0x00
- && (status & 0xAB) == 0x00)))
- kind = lm84;
- else
- kind = max1617;
- }
+ man_id = i2c_smbus_read_byte_data(client, ADM1021_REG_MAN_ID);
+ dev_id = i2c_smbus_read_byte_data(client, ADM1021_REG_DEV_ID);
- if (kind == max1617) {
- type_name = "max1617";
- } else if (kind == max1617a) {
+ if (man_id == 0x4d && dev_id == 0x01)
type_name = "max1617a";
- } else if (kind == adm1021) {
- type_name = "adm1021";
- } else if (kind == adm1023) {
- type_name = "adm1023";
- } else if (kind == thmc10) {
+ else if (man_id == 0x41) {
+ if ((dev_id & 0xF0) == 0x30)
+ type_name = "adm1023";
+ else
+ type_name = "adm1021";
+ } else if (man_id == 0x49)
type_name = "thmc10";
- } else if (kind == lm84) {
- type_name = "lm84";
- } else if (kind == gl523sm) {
+ else if (man_id == 0x23)
type_name = "gl523sm";
- } else if (kind == mc1066) {
+ else if (man_id == 0x54)
type_name = "mc1066";
- }
+ /* LM84 Mfr ID in a different place, and it has more unused bits */
+ else if (conv_rate == 0x00
+ && (config & 0x7F) == 0x00
+ && (status & 0xAB) == 0x00)
+ type_name = "lm84";
+ else
+ type_name = "max1617";
+
pr_debug("adm1021: Detected chip %s at adapter %d, address 0x%02x.\n",
- type_name, i2c_adapter_id(adapter), address);
+ type_name, i2c_adapter_id(adapter), client->addr);
+ strlcpy(info->type, type_name, I2C_NAME_SIZE);
- /* Fill in the remaining client fields */
- strlcpy(client->name, type_name, I2C_NAME_SIZE);
- data->type = kind;
- mutex_init(&data->update_lock);
+ return 0;
+}
- /* Tell the I2C layer a new client has arrived */
- if ((err = i2c_attach_client(client)))
- goto error1;
+static int adm1021_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct adm1021_data *data;
+ int err;
+
+ data = kzalloc(sizeof(struct adm1021_data), GFP_KERNEL);
+ if (!data) {
+ pr_debug("adm1021: detect failed, kzalloc failed!\n");
+ err = -ENOMEM;
+ goto error0;
+ }
+
+ i2c_set_clientdata(client, data);
+ data->type = id->driver_data;
+ mutex_init(&data->update_lock);
/* Initialize the ADM1021 chip */
- if (kind != lm84 && !read_only)
+ if (data->type != lm84 && !read_only)
adm1021_init_client(client);
/* Register sysfs hooks */
if ((err = sysfs_create_group(&client->dev.kobj, &adm1021_group)))
- goto error2;
+ goto error1;
data->hwmon_dev = hwmon_device_register(&client->dev);
if (IS_ERR(data->hwmon_dev)) {
error3:
sysfs_remove_group(&client->dev.kobj, &adm1021_group);
-error2:
- i2c_detach_client(client);
error1:
kfree(data);
error0:
i2c_smbus_write_byte_data(client, ADM1021_REG_CONV_RATE_W, 0x04);
}
-static int adm1021_detach_client(struct i2c_client *client)
+static int adm1021_remove(struct i2c_client *client)
{
struct adm1021_data *data = i2c_get_clientdata(client);
- int err;
hwmon_device_unregister(data->hwmon_dev);
sysfs_remove_group(&client->dev.kobj, &adm1021_group);
- if ((err = i2c_detach_client(client)))
- return err;
-
kfree(data);
return 0;
}
dev_dbg(&client->dev, "Starting adm1021 update\n");
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(i));
- data->temp_min[i] = i2c_smbus_read_byte_data(client,
- ADM1021_REG_THYST_R(i));
+ data->temp[i] = 1000 *
+ (s8) i2c_smbus_read_byte_data(
+ client, ADM1021_REG_TEMP(i));
+ data->temp_max[i] = 1000 *
+ (s8) i2c_smbus_read_byte_data(
+ client, ADM1021_REG_TOS_R(i));
+ data->temp_min[i] = 1000 *
+ (s8) i2c_smbus_read_byte_data(
+ client, ADM1021_REG_THYST_R(i));
}
data->alarms = i2c_smbus_read_byte_data(client,
ADM1021_REG_STATUS) & 0x7c;
if (data->type == adm1023) {
- data->remote_temp_prec =
- i2c_smbus_read_byte_data(client,
- ADM1023_REG_REM_TEMP_PREC);
- data->remote_temp_os_prec =
- i2c_smbus_read_byte_data(client,
- ADM1023_REG_REM_TOS_PREC);
- data->remote_temp_hyst_prec =
- i2c_smbus_read_byte_data(client,
- ADM1023_REG_REM_THYST_PREC);
+ /* The ADM1023 provides 3 extra bits of precision for
+ * the remote sensor in extra registers. */
+ data->temp[1] += 125 * (i2c_smbus_read_byte_data(
+ client, ADM1023_REG_REM_TEMP_PREC) >> 5);
+ data->temp_max[1] += 125 * (i2c_smbus_read_byte_data(
+ client, ADM1023_REG_REM_TOS_PREC) >> 5);
+ data->temp_min[1] += 125 * (i2c_smbus_read_byte_data(
+ client, ADM1023_REG_REM_THYST_PREC) >> 5);
data->remote_temp_offset =
i2c_smbus_read_byte_data(client,
ADM1023_REG_REM_OFFSET);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff