#include <linux/mutex.h>
/* Addresses to scan */
-static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f, I2C_CLIENT_END };
+static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f,
+ I2C_CLIENT_END };
/* Insmod parameters */
-I2C_CLIENT_INSMOD_1(w83793);
-I2C_CLIENT_MODULE_PARM(force_subclients, "List of subclient addresses: "
+
+static unsigned short force_subclients[4];
+module_param_array(force_subclients, short, NULL, 0);
+MODULE_PARM_DESC(force_subclients, "List of subclient addresses: "
"{bus, clientaddr, subclientaddr1, subclientaddr2}");
static int reset;
}
struct w83793_data {
- struct i2c_client client;
struct i2c_client *lm75[2];
struct device *hwmon_dev;
struct mutex update_lock;
static u8 w83793_read_value(struct i2c_client *client, u16 reg);
static int w83793_write_value(struct i2c_client *client, u16 reg, u8 value);
-static int w83793_attach_adapter(struct i2c_adapter *adapter);
-static int w83793_detect(struct i2c_adapter *adapter, int address, int kind);
-static int w83793_detach_client(struct i2c_client *client);
+static int w83793_probe(struct i2c_client *client,
+ const struct i2c_device_id *id);
+static int w83793_detect(struct i2c_client *client,
+ struct i2c_board_info *info);
+static int w83793_remove(struct i2c_client *client);
static void w83793_init_client(struct i2c_client *client);
static void w83793_update_nonvolatile(struct device *dev);
static struct w83793_data *w83793_update_device(struct device *dev);
+static const struct i2c_device_id w83793_id[] = {
+ { "w83793", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, w83793_id);
+
static struct i2c_driver w83793_driver = {
+ .class = I2C_CLASS_HWMON,
.driver = {
.name = "w83793",
},
- .attach_adapter = w83793_attach_adapter,
- .detach_client = w83793_detach_client,
+ .probe = w83793_probe,
+ .remove = w83793_remove,
+ .id_table = w83793_id,
+ .detect = w83793_detect,
+ .address_list = normal_i2c,
};
static ssize_t
show_vrm(struct device *dev, struct device_attribute *attr, char *buf)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct w83793_data *data = i2c_get_clientdata(client);
-
+ struct w83793_data *data = dev_get_drvdata(dev);
return sprintf(buf, "%d\n", data->vrm);
}
store_vrm(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct w83793_data *data = i2c_get_clientdata(client);
-
+ struct w83793_data *data = dev_get_drvdata(dev);
data->vrm = simple_strtoul(buf, NULL, 10);
return count;
}
SENSOR_ATTR_2(cpu0_vid, S_IRUGO, show_vid, NULL, NOT_USED, 0),
SENSOR_ATTR_2(cpu1_vid, S_IRUGO, show_vid, NULL, NOT_USED, 1),
};
+static DEVICE_ATTR(vrm, S_IWUSR | S_IRUGO, show_vrm, store_vrm);
static struct sensor_device_attribute_2 sda_single_files[] = {
- SENSOR_ATTR_2(vrm, S_IWUSR | S_IRUGO, show_vrm, store_vrm,
- NOT_USED, NOT_USED),
SENSOR_ATTR_2(chassis, S_IWUSR | S_IRUGO, show_alarm_beep,
store_chassis_clear, ALARM_STATUS, 30),
SENSOR_ATTR_2(beep_enable, S_IWUSR | S_IRUGO, show_beep_enable,
}
-static int w83793_attach_adapter(struct i2c_adapter *adapter)
-{
- if (!(adapter->class & I2C_CLASS_HWMON))
- return 0;
- return i2c_probe(adapter, &addr_data, w83793_detect);
-}
-
-static int w83793_detach_client(struct i2c_client *client)
+static int w83793_remove(struct i2c_client *client)
{
struct w83793_data *data = i2c_get_clientdata(client);
struct device *dev = &client->dev;
- int err, i;
+ int i;
- /* main client */
- if (data) {
- hwmon_device_unregister(data->hwmon_dev);
+ hwmon_device_unregister(data->hwmon_dev);
- for (i = 0; i < ARRAY_SIZE(w83793_sensor_attr_2); i++)
- device_remove_file(dev,
- &w83793_sensor_attr_2[i].dev_attr);
+ for (i = 0; i < ARRAY_SIZE(w83793_sensor_attr_2); i++)
+ device_remove_file(dev,
+ &w83793_sensor_attr_2[i].dev_attr);
- for (i = 0; i < ARRAY_SIZE(sda_single_files); i++)
- device_remove_file(dev, &sda_single_files[i].dev_attr);
+ for (i = 0; i < ARRAY_SIZE(sda_single_files); i++)
+ device_remove_file(dev, &sda_single_files[i].dev_attr);
- for (i = 0; i < ARRAY_SIZE(w83793_vid); i++)
- device_remove_file(dev, &w83793_vid[i].dev_attr);
+ for (i = 0; i < ARRAY_SIZE(w83793_vid); i++)
+ device_remove_file(dev, &w83793_vid[i].dev_attr);
+ device_remove_file(dev, &dev_attr_vrm);
- for (i = 0; i < ARRAY_SIZE(w83793_left_fan); i++)
- device_remove_file(dev, &w83793_left_fan[i].dev_attr);
+ for (i = 0; i < ARRAY_SIZE(w83793_left_fan); i++)
+ device_remove_file(dev, &w83793_left_fan[i].dev_attr);
- for (i = 0; i < ARRAY_SIZE(w83793_left_pwm); i++)
- device_remove_file(dev, &w83793_left_pwm[i].dev_attr);
+ for (i = 0; i < ARRAY_SIZE(w83793_left_pwm); i++)
+ device_remove_file(dev, &w83793_left_pwm[i].dev_attr);
- for (i = 0; i < ARRAY_SIZE(w83793_temp); i++)
- device_remove_file(dev, &w83793_temp[i].dev_attr);
- }
+ for (i = 0; i < ARRAY_SIZE(w83793_temp); i++)
+ device_remove_file(dev, &w83793_temp[i].dev_attr);
- if ((err = i2c_detach_client(client)))
- return err;
+ if (data->lm75[0] != NULL)
+ i2c_unregister_device(data->lm75[0]);
+ if (data->lm75[1] != NULL)
+ i2c_unregister_device(data->lm75[1]);
- /* main client */
- if (data)
- kfree(data);
- /* subclient */
- else
- kfree(client);
+ kfree(data);
return 0;
}
static int
-w83793_create_subclient(struct i2c_adapter *adapter,
- struct i2c_client *client, int addr,
- struct i2c_client **sub_cli)
-{
- int err = 0;
- struct i2c_client *sub_client;
-
- (*sub_cli) = sub_client =
- kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
- if (!(sub_client)) {
- return -ENOMEM;
- }
- sub_client->addr = 0x48 + addr;
- i2c_set_clientdata(sub_client, NULL);
- sub_client->adapter = adapter;
- sub_client->driver = &w83793_driver;
- strlcpy(sub_client->name, "w83793 subclient", I2C_NAME_SIZE);
- if ((err = i2c_attach_client(sub_client))) {
- dev_err(&client->dev, "subclient registration "
- "at address 0x%x failed\n", sub_client->addr);
- kfree(sub_client);
- }
- return err;
-}
-
-static int
-w83793_detect_subclients(struct i2c_adapter *adapter, int address,
- int kind, struct i2c_client *client)
+w83793_detect_subclients(struct i2c_client *client)
{
int i, id, err;
+ int address = client->addr;
u8 tmp;
+ struct i2c_adapter *adapter = client->adapter;
struct w83793_data *data = i2c_get_clientdata(client);
id = i2c_adapter_id(adapter);
tmp = w83793_read_value(client, W83793_REG_I2C_SUBADDR);
if (!(tmp & 0x08)) {
- err =
- w83793_create_subclient(adapter, client, tmp & 0x7,
- &data->lm75[0]);
- if (err < 0)
- goto ERROR_SC_0;
+ data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (tmp & 0x7));
}
if (!(tmp & 0x80)) {
if ((data->lm75[0] != NULL)
err = -ENODEV;
goto ERROR_SC_1;
}
- err = w83793_create_subclient(adapter, client,
- (tmp >> 4) & 0x7, &data->lm75[1]);
- if (err < 0)
- goto ERROR_SC_1;
+ data->lm75[1] = i2c_new_dummy(adapter,
+ 0x48 + ((tmp >> 4) & 0x7));
}
return 0;
/* Undo inits in case of errors */
ERROR_SC_1:
- if (data->lm75[0] != NULL) {
- i2c_detach_client(data->lm75[0]);
- kfree(data->lm75[0]);
- }
+ if (data->lm75[0] != NULL)
+ i2c_unregister_device(data->lm75[0]);
ERROR_SC_0:
return err;
}
-static int w83793_detect(struct i2c_adapter *adapter, int address, int kind)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int w83793_detect(struct i2c_client *client,
+ struct i2c_board_info *info)
{
- int i;
- u8 tmp, val;
- struct i2c_client *client;
- struct device *dev;
- struct w83793_data *data;
- int files_fan = ARRAY_SIZE(w83793_left_fan) / 7;
- int files_pwm = ARRAY_SIZE(w83793_left_pwm) / 5;
- int files_temp = ARRAY_SIZE(w83793_temp) / 6;
- int err = 0;
+ u8 tmp, bank, chip_id;
+ struct i2c_adapter *adapter = client->adapter;
+ unsigned short address = client->addr;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
- goto exit;
+ 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 w83793_{read,write}_value. */
+ bank = i2c_smbus_read_byte_data(client, W83793_REG_BANKSEL);
- if (!(data = kzalloc(sizeof(struct w83793_data), GFP_KERNEL))) {
- err = -ENOMEM;
- goto exit;
+ tmp = bank & 0x80 ? 0x5c : 0xa3;
+ /* Check Winbond vendor ID */
+ if (tmp != i2c_smbus_read_byte_data(client, W83793_REG_VENDORID)) {
+ pr_debug("w83793: Detection failed at check vendor id\n");
+ return -ENODEV;
}
- client = &data->client;
- dev = &client->dev;
- i2c_set_clientdata(client, data);
- client->addr = address;
- client->adapter = adapter;
- client->driver = &w83793_driver;
+ /* If Winbond chip, address of chip and W83793_REG_I2C_ADDR
+ should match */
+ if ((bank & 0x07) == 0
+ && i2c_smbus_read_byte_data(client, W83793_REG_I2C_ADDR) !=
+ (address << 1)) {
+ pr_debug("w83793: Detection failed at check i2c addr\n");
+ return -ENODEV;
+ }
- data->bank = i2c_smbus_read_byte_data(client, W83793_REG_BANKSEL);
+ /* Determine the chip type now */
+ chip_id = i2c_smbus_read_byte_data(client, W83793_REG_CHIPID);
+ if (chip_id != 0x7b)
+ return -ENODEV;
- /* Now, we do the remaining detection. */
- if (kind < 0) {
- tmp = data->bank & 0x80 ? 0x5c : 0xa3;
- /* Check Winbond vendor ID */
- if (tmp != i2c_smbus_read_byte_data(client,
- W83793_REG_VENDORID)) {
- pr_debug("w83793: Detection failed at check "
- "vendor id\n");
- err = -ENODEV;
- goto free_mem;
- }
+ strlcpy(info->type, "w83793", I2C_NAME_SIZE);
- /* If Winbond chip, address of chip and W83793_REG_I2C_ADDR
- should match */
- if ((data->bank & 0x07) == 0
- && i2c_smbus_read_byte_data(client, W83793_REG_I2C_ADDR) !=
- (address << 1)) {
- pr_debug("w83793: Detection failed at check "
- "i2c addr\n");
- err = -ENODEV;
- goto free_mem;
- }
-
- }
+ return 0;
+}
- /* We have either had a force parameter, or we have already detected the
- Winbond. Determine the chip type now */
+static int w83793_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct device *dev = &client->dev;
+ struct w83793_data *data;
+ int i, tmp, val, err;
+ int files_fan = ARRAY_SIZE(w83793_left_fan) / 7;
+ int files_pwm = ARRAY_SIZE(w83793_left_pwm) / 5;
+ int files_temp = ARRAY_SIZE(w83793_temp) / 6;
- if (kind <= 0) {
- if (0x7b == w83793_read_value(client, W83793_REG_CHIPID)) {
- kind = w83793;
- } else {
- if (kind == 0)
- dev_warn(&adapter->dev, "w83793: Ignoring "
- "'force' parameter for unknown chip "
- "at address 0x%02x\n", address);
- err = -ENODEV;
- goto free_mem;
- }
+ data = kzalloc(sizeof(struct w83793_data), GFP_KERNEL);
+ if (!data) {
+ err = -ENOMEM;
+ goto exit;
}
- /* Fill in the remaining client fields and put into the global list */
- strlcpy(client->name, "w83793", I2C_NAME_SIZE);
-
+ i2c_set_clientdata(client, data);
+ data->bank = i2c_smbus_read_byte_data(client, W83793_REG_BANKSEL);
mutex_init(&data->update_lock);
- /* Tell the I2C layer a new client has arrived */
- if ((err = i2c_attach_client(client)))
+ err = w83793_detect_subclients(client);
+ if (err)
goto free_mem;
- if ((err = w83793_detect_subclients(adapter, address, kind, client)))
- goto detach_client;
-
/* Initialize the chip */
w83793_init_client(client);
- data->vrm = vid_which_vrm();
/*
Only fan 1-5 has their own input pins,
Pwm 1-3 has their own pins
val = w83793_read_value(client, W83793_REG_FANIN_CTRL);
/* check the function of pins 49-56 */
- if (!(tmp & 0x80)) {
+ if (tmp & 0x80) {
+ data->has_vid |= 0x2; /* has VIDB */
+ } else {
data->has_pwm |= 0x18; /* pwm 4,5 */
if (val & 0x01) { /* fan 6 */
data->has_fan |= 0x20;
}
}
+ /* check the function of pins 37-40 */
+ if (!(tmp & 0x29))
+ data->has_vid |= 0x1; /* has VIDA */
if (0x08 == (tmp & 0x0c)) {
if (val & 0x08) /* fan 9 */
data->has_fan |= 0x100;
if (val & 0x10) /* fan 10 */
data->has_fan |= 0x200;
}
-
if (0x20 == (tmp & 0x30)) {
if (val & 0x20) /* fan 11 */
data->has_fan |= 0x400;
if (tmp & 0x02)
data->has_temp |= 0x20;
- /* Detect the VID usage and ignore unused input */
- tmp = w83793_read_value(client, W83793_REG_MFC);
- if (!(tmp & 0x29))
- data->has_vid |= 0x1; /* has VIDA */
- if (tmp & 0x80)
- data->has_vid |= 0x2; /* has VIDB */
-
/* Register sysfs hooks */
for (i = 0; i < ARRAY_SIZE(w83793_sensor_attr_2); i++) {
err = device_create_file(dev,
if (err)
goto exit_remove;
}
+ if (data->has_vid) {
+ data->vrm = vid_which_vrm();
+ err = device_create_file(dev, &dev_attr_vrm);
+ if (err)
+ goto exit_remove;
+ }
for (i = 0; i < ARRAY_SIZE(sda_single_files); i++) {
err = device_create_file(dev, &sda_single_files[i].dev_attr);
for (i = 0; i < ARRAY_SIZE(w83793_temp); i++)
device_remove_file(dev, &w83793_temp[i].dev_attr);
- if (data->lm75[0] != NULL) {
- i2c_detach_client(data->lm75[0]);
- kfree(data->lm75[0]);
- }
- if (data->lm75[1] != NULL) {
- i2c_detach_client(data->lm75[1]);
- kfree(data->lm75[1]);
- }
-detach_client:
- i2c_detach_client(client);
+ if (data->lm75[0] != NULL)
+ i2c_unregister_device(data->lm75[0]);
+ if (data->lm75[1] != NULL)
+ i2c_unregister_device(data->lm75[1]);
free_mem:
kfree(data);
exit:
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff