/*
* f75375s.c - driver for the Fintek F75375/SP and F75373
* hardware monitoring features
- * Copyright (C) 2006-2007 Riku Voipio <riku.voipio@movial.fi>
+ * Copyright (C) 2006-2007 Riku Voipio
*
* Datasheets available at:
*
#include <linux/i2c.h>
#include <linux/err.h>
#include <linux/mutex.h>
+#include <linux/f75375s.h>
+#include <linux/slab.h>
/* Addresses to scan */
-static unsigned short normal_i2c[] = { 0x2d, 0x2e, I2C_CLIENT_END };
+static const unsigned short normal_i2c[] = { 0x2d, 0x2e, I2C_CLIENT_END };
-/* Insmod parameters */
-I2C_CLIENT_INSMOD_2(f75373, f75375);
+enum chips { f75373, f75375 };
/* Fintek F75375 registers */
#define F75375_REG_CONFIG0 0x0
struct f75375_data {
unsigned short addr;
- struct i2c_client client;
struct device *hwmon_dev;
const char *name;
s8 temp_max_hyst[2];
};
-static int f75375_attach_adapter(struct i2c_adapter *adapter);
-static int f75375_detect(struct i2c_adapter *adapter, int address, int kind);
-static int f75375_detach_client(struct i2c_client *client);
+static int f75375_detect(struct i2c_client *client,
+ struct i2c_board_info *info);
+static int f75375_probe(struct i2c_client *client,
+ const struct i2c_device_id *id);
+static int f75375_remove(struct i2c_client *client);
+
+static const struct i2c_device_id f75375_id[] = {
+ { "f75373", f75373 },
+ { "f75375", f75375 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, f75375_id);
static struct i2c_driver f75375_driver = {
+ .class = I2C_CLASS_HWMON,
.driver = {
.name = "f75375",
},
- .attach_adapter = f75375_attach_adapter,
- .detach_client = f75375_detach_client,
+ .probe = f75375_probe,
+ .remove = f75375_remove,
+ .id_table = f75375_id,
+ .detect = f75375_detect,
+ .address_list = normal_i2c,
};
static inline int f75375_read8(struct i2c_client *client, u8 reg)
return sprintf(buf, "%d\n", data->pwm_enable[nr]);
}
-static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *attr,
- const char *buf, size_t count)
+static int set_pwm_enable_direct(struct i2c_client *client, int nr, int val)
{
- int nr = to_sensor_dev_attr(attr)->index;
- struct i2c_client *client = to_i2c_client(dev);
struct f75375_data *data = i2c_get_clientdata(client);
- int val = simple_strtoul(buf, NULL, 10);
u8 fanmode;
if (val < 0 || val > 4)
return -EINVAL;
- mutex_lock(&data->update_lock);
fanmode = f75375_read8(client, F75375_REG_FAN_TIMER);
fanmode = ~(3 << FAN_CTRL_MODE(nr));
}
f75375_write8(client, F75375_REG_FAN_TIMER, fanmode);
data->pwm_enable[nr] = val;
+ return 0;
+}
+
+static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ int nr = to_sensor_dev_attr(attr)->index;
+ struct i2c_client *client = to_i2c_client(dev);
+ struct f75375_data *data = i2c_get_clientdata(client);
+ int val = simple_strtoul(buf, NULL, 10);
+ int err = 0;
+
+ mutex_lock(&data->update_lock);
+ err = set_pwm_enable_direct(client, nr, val);
mutex_unlock(&data->update_lock);
- return count;
+ return err ? err : count;
}
static ssize_t set_pwm_mode(struct device *dev, struct device_attribute *attr,
int val = simple_strtoul(buf, NULL, 10);
u8 conf = 0;
- if (val != 0 || val != 1 || data->kind == f75373)
+ if (!(val == 0 || val == 1))
return -EINVAL;
mutex_lock(&data->update_lock);
show_pwm, set_pwm, 0);
static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO|S_IWUSR,
show_pwm_enable, set_pwm_enable, 0);
-static SENSOR_DEVICE_ATTR(pwm1_mode, S_IRUGO|S_IWUSR,
+static SENSOR_DEVICE_ATTR(pwm1_mode, S_IRUGO,
show_pwm_mode, set_pwm_mode, 0);
static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR,
show_pwm, set_pwm, 1);
static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO|S_IWUSR,
show_pwm_enable, set_pwm_enable, 1);
-static SENSOR_DEVICE_ATTR(pwm2_mode, S_IRUGO|S_IWUSR,
+static SENSOR_DEVICE_ATTR(pwm2_mode, S_IRUGO,
show_pwm_mode, set_pwm_mode, 1);
static struct attribute *f75375_attributes[] = {
.attrs = f75375_attributes,
};
-static int f75375_detach_client(struct i2c_client *client)
+static void f75375_init(struct i2c_client *client, struct f75375_data *data,
+ struct f75375s_platform_data *f75375s_pdata)
{
- struct f75375_data *data = i2c_get_clientdata(client);
- int err;
-
- hwmon_device_unregister(data->hwmon_dev);
- sysfs_remove_group(&client->dev.kobj, &f75375_group);
-
- err = i2c_detach_client(client);
- if (err) {
- dev_err(&client->dev,
- "Client deregistration failed, "
- "client not detached.\n");
- return err;
+ int nr;
+ set_pwm_enable_direct(client, 0, f75375s_pdata->pwm_enable[0]);
+ set_pwm_enable_direct(client, 1, f75375s_pdata->pwm_enable[1]);
+ for (nr = 0; nr < 2; nr++) {
+ data->pwm[nr] = SENSORS_LIMIT(f75375s_pdata->pwm[nr], 0, 255);
+ f75375_write8(client, F75375_REG_FAN_PWM_DUTY(nr),
+ data->pwm[nr]);
}
- kfree(data);
- return 0;
-}
-static int f75375_attach_adapter(struct i2c_adapter *adapter)
-{
- if (!(adapter->class & I2C_CLASS_HWMON))
- return 0;
- return i2c_probe(adapter, &addr_data, f75375_detect);
}
-/* This function is called by i2c_probe */
-static int f75375_detect(struct i2c_adapter *adapter, int address, int kind)
+static int f75375_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
{
- struct i2c_client *client;
struct f75375_data *data;
- u8 version = 0;
- int err = 0;
- const char *name = "";
-
- if (!(data = kzalloc(sizeof(struct f75375_data), GFP_KERNEL))) {
- err = -ENOMEM;
- goto exit;
- }
- client = &data->client;
- i2c_set_clientdata(client, data);
- client->addr = address;
- client->adapter = adapter;
- client->driver = &f75375_driver;
-
- if (kind < 0) {
- u16 vendid = f75375_read16(client, F75375_REG_VENDOR);
- u16 chipid = f75375_read16(client, F75375_CHIP_ID);
- version = f75375_read8(client, F75375_REG_VERSION);
- if (chipid == 0x0306 && vendid == 0x1934) {
- kind = f75375;
- } else if (chipid == 0x0204 && vendid == 0x1934) {
- kind = f75373;
- } else {
- dev_err(&adapter->dev,
- "failed,%02X,%02X,%02X\n",
- chipid, version, vendid);
- goto exit_free;
- }
- }
+ struct f75375s_platform_data *f75375s_pdata = client->dev.platform_data;
+ int err;
- if (kind == f75375) {
- name = "f75375";
- } else if (kind == f75373) {
- name = "f75373";
- }
+ if (!i2c_check_functionality(client->adapter,
+ I2C_FUNC_SMBUS_BYTE_DATA))
+ return -EIO;
+ if (!(data = kzalloc(sizeof(struct f75375_data), GFP_KERNEL)))
+ return -ENOMEM;
- dev_info(&adapter->dev, "found %s version: %02X\n", name, version);
- strlcpy(client->name, name, I2C_NAME_SIZE);
- data->kind = kind;
+ i2c_set_clientdata(client, data);
mutex_init(&data->update_lock);
- if ((err = i2c_attach_client(client)))
- goto exit_free;
+ data->kind = id->driver_data;
if ((err = sysfs_create_group(&client->dev.kobj, &f75375_group)))
- goto exit_detach;
+ goto exit_free;
+
+ if (data->kind == f75375) {
+ err = sysfs_chmod_file(&client->dev.kobj,
+ &sensor_dev_attr_pwm1_mode.dev_attr.attr,
+ S_IRUGO | S_IWUSR);
+ if (err)
+ goto exit_remove;
+ err = sysfs_chmod_file(&client->dev.kobj,
+ &sensor_dev_attr_pwm2_mode.dev_attr.attr,
+ S_IRUGO | S_IWUSR);
+ if (err)
+ goto exit_remove;
+ }
data->hwmon_dev = hwmon_device_register(&client->dev);
if (IS_ERR(data->hwmon_dev)) {
goto exit_remove;
}
+ if (f75375s_pdata != NULL)
+ f75375_init(client, data, f75375s_pdata);
+
return 0;
exit_remove:
sysfs_remove_group(&client->dev.kobj, &f75375_group);
-exit_detach:
- i2c_detach_client(client);
exit_free:
kfree(data);
-exit:
return err;
}
+static int f75375_remove(struct i2c_client *client)
+{
+ struct f75375_data *data = i2c_get_clientdata(client);
+ hwmon_device_unregister(data->hwmon_dev);
+ sysfs_remove_group(&client->dev.kobj, &f75375_group);
+ kfree(data);
+ return 0;
+}
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int f75375_detect(struct i2c_client *client,
+ struct i2c_board_info *info)
+{
+ struct i2c_adapter *adapter = client->adapter;
+ u16 vendid, chipid;
+ u8 version;
+ const char *name;
+
+ vendid = f75375_read16(client, F75375_REG_VENDOR);
+ chipid = f75375_read16(client, F75375_CHIP_ID);
+ if (chipid == 0x0306 && vendid == 0x1934)
+ name = "f75375";
+ else if (chipid == 0x0204 && vendid == 0x1934)
+ name = "f75373";
+ else
+ return -ENODEV;
+
+ version = f75375_read8(client, F75375_REG_VERSION);
+ dev_info(&adapter->dev, "found %s version: %02X\n", name, version);
+ strlcpy(info->type, name, I2C_NAME_SIZE);
+
+ return 0;
+}
+
static int __init sensors_f75375_init(void)
{
return i2c_add_driver(&f75375_driver);
i2c_del_driver(&f75375_driver);
}
-MODULE_AUTHOR("Riku Voipio <riku.voipio@movial.fi>");
+MODULE_AUTHOR("Riku Voipio");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("F75373/F75375 hardware monitoring driver");
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff