#include <linux/sysfs.h>
/* Addresses to scan */
-static unsigned short normal_i2c[] = { 0x2c, 0x2d, I2C_CLIENT_END };
+static const unsigned short normal_i2c[] = { 0x2c, 0x2d, I2C_CLIENT_END };
-/* Insmod parameters */
-I2C_CLIENT_INSMOD_2(gl518sm_r00, gl518sm_r80);
+enum chips { gl518sm_r00, gl518sm_r80 };
/* Many GL518 constants specified below */
long rpmdiv;
if (rpm == 0)
return 0;
- rpmdiv = SENSORS_LIMIT(rpm, 1, 1920000) * div;
- return SENSORS_LIMIT((960000 + rpmdiv / 2) / rpmdiv, 1, 255);
+ rpmdiv = SENSORS_LIMIT(rpm, 1, 960000) * div;
+ return SENSORS_LIMIT((480000 + rpmdiv / 2) / rpmdiv, 1, 255);
}
-#define FAN_FROM_REG(val,div) ((val)==0 ? 0 : (960000/((val)*(div))))
+#define FAN_FROM_REG(val,div) ((val)==0 ? 0 : (480000/((val)*(div))))
#define IN_TO_REG(val) (SENSORS_LIMIT((((val)+9)/19),0,255))
#define IN_FROM_REG(val) ((val)*19)
#define VDD_TO_REG(val) (SENSORS_LIMIT((((val)*4+47)/95),0,255))
#define VDD_FROM_REG(val) (((val)*95+2)/4)
-#define DIV_TO_REG(val) ((val)==4?2:(val)==2?1:(val)==1?0:3)
#define DIV_FROM_REG(val) (1 << (val))
#define BEEP_MASK_TO_REG(val) ((val) & 0x7f & data->alarm_mask)
/* Each client has this additional data */
struct gl518_data {
- struct i2c_client client;
struct device *hwmon_dev;
enum chips type;
u8 beep_enable; /* Boolean */
};
-static int gl518_attach_adapter(struct i2c_adapter *adapter);
-static int gl518_detect(struct i2c_adapter *adapter, int address, int kind);
+static int gl518_probe(struct i2c_client *client,
+ const struct i2c_device_id *id);
+static int gl518_detect(struct i2c_client *client, struct i2c_board_info *info);
static void gl518_init_client(struct i2c_client *client);
-static int gl518_detach_client(struct i2c_client *client);
+static int gl518_remove(struct i2c_client *client);
static int gl518_read_value(struct i2c_client *client, u8 reg);
static int gl518_write_value(struct i2c_client *client, u8 reg, u16 value);
static struct gl518_data *gl518_update_device(struct device *dev);
+static const struct i2c_device_id gl518_id[] = {
+ { "gl518sm", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, gl518_id);
+
/* This is the driver that will be inserted */
static struct i2c_driver gl518_driver = {
+ .class = I2C_CLASS_HWMON,
.driver = {
.name = "gl518sm",
},
- .attach_adapter = gl518_attach_adapter,
- .detach_client = gl518_detach_client,
+ .probe = gl518_probe,
+ .remove = gl518_remove,
+ .id_table = gl518_id,
+ .detect = gl518_detect,
+ .address_list = normal_i2c,
};
/*
int regvalue;
unsigned long val = simple_strtoul(buf, NULL, 10);
+ switch (val) {
+ case 1: val = 0; break;
+ case 2: val = 1; break;
+ case 4: val = 2; break;
+ case 8: val = 3; break;
+ default:
+ dev_err(dev, "Invalid fan clock divider %lu, choose one "
+ "of 1, 2, 4 or 8\n", val);
+ return -EINVAL;
+ }
+
mutex_lock(&data->update_lock);
regvalue = gl518_read_value(client, GL518_REG_MISC);
- data->fan_div[nr] = DIV_TO_REG(val);
+ data->fan_div[nr] = val;
regvalue = (regvalue & ~(0xc0 >> (2 * nr)))
| (data->fan_div[nr] << (6 - 2 * nr));
gl518_write_value(client, GL518_REG_MISC, regvalue);
static DEVICE_ATTR(beep_mask, S_IWUSR|S_IRUGO,
show_beep_mask, set_beep_mask);
+static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ int bitnr = to_sensor_dev_attr(attr)->index;
+ struct gl518_data *data = gl518_update_device(dev);
+ return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
+}
+
+static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
+static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
+static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4);
+static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5);
+static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6);
+
+static ssize_t show_beep(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ int bitnr = to_sensor_dev_attr(attr)->index;
+ struct gl518_data *data = gl518_update_device(dev);
+ return sprintf(buf, "%u\n", (data->beep_mask >> bitnr) & 1);
+}
+
+static ssize_t set_beep(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct i2c_client *client = to_i2c_client(dev);
+ struct gl518_data *data = i2c_get_clientdata(client);
+ int bitnr = to_sensor_dev_attr(attr)->index;
+ unsigned long bit;
+
+ bit = simple_strtoul(buf, NULL, 10);
+ if (bit & ~1)
+ return -EINVAL;
+
+ mutex_lock(&data->update_lock);
+ data->beep_mask = gl518_read_value(client, GL518_REG_ALARM);
+ if (bit)
+ data->beep_mask |= (1 << bitnr);
+ else
+ data->beep_mask &= ~(1 << bitnr);
+ gl518_write_value(client, GL518_REG_ALARM, data->beep_mask);
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
+static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO|S_IWUSR, show_beep, set_beep, 0);
+static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO|S_IWUSR, show_beep, set_beep, 1);
+static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO|S_IWUSR, show_beep, set_beep, 2);
+static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO|S_IWUSR, show_beep, set_beep, 3);
+static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO|S_IWUSR, show_beep, set_beep, 4);
+static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO|S_IWUSR, show_beep, set_beep, 5);
+static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO|S_IWUSR, show_beep, set_beep, 6);
+
static struct attribute *gl518_attributes[] = {
&dev_attr_in3_input.attr,
&dev_attr_in0_min.attr,
&dev_attr_in1_max.attr,
&dev_attr_in2_max.attr,
&dev_attr_in3_max.attr,
+ &sensor_dev_attr_in0_alarm.dev_attr.attr,
+ &sensor_dev_attr_in1_alarm.dev_attr.attr,
+ &sensor_dev_attr_in2_alarm.dev_attr.attr,
+ &sensor_dev_attr_in3_alarm.dev_attr.attr,
+ &sensor_dev_attr_in0_beep.dev_attr.attr,
+ &sensor_dev_attr_in1_beep.dev_attr.attr,
+ &sensor_dev_attr_in2_beep.dev_attr.attr,
+ &sensor_dev_attr_in3_beep.dev_attr.attr,
&dev_attr_fan1_auto.attr,
&sensor_dev_attr_fan1_input.dev_attr.attr,
&sensor_dev_attr_fan2_min.dev_attr.attr,
&sensor_dev_attr_fan1_div.dev_attr.attr,
&sensor_dev_attr_fan2_div.dev_attr.attr,
+ &sensor_dev_attr_fan1_alarm.dev_attr.attr,
+ &sensor_dev_attr_fan2_alarm.dev_attr.attr,
+ &sensor_dev_attr_fan1_beep.dev_attr.attr,
+ &sensor_dev_attr_fan2_beep.dev_attr.attr,
&dev_attr_temp1_input.attr,
&dev_attr_temp1_max.attr,
&dev_attr_temp1_max_hyst.attr,
+ &sensor_dev_attr_temp1_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp1_beep.dev_attr.attr,
&dev_attr_alarms.attr,
&dev_attr_beep_enable.attr,
* Real code
*/
-static int gl518_attach_adapter(struct i2c_adapter *adapter)
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int gl518_detect(struct i2c_client *client, struct i2c_board_info *info)
{
- if (!(adapter->class & I2C_CLASS_HWMON))
- return 0;
- return i2c_probe(adapter, &addr_data, gl518_detect);
-}
-
-static int gl518_detect(struct i2c_adapter *adapter, int address, int kind)
-{
- int i;
- struct i2c_client *client;
- struct gl518_data *data;
- int err = 0;
+ struct i2c_adapter *adapter = client->adapter;
+ int rev;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA |
I2C_FUNC_SMBUS_WORD_DATA))
- 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 gl518_{read,write}_value. */
+ return -ENODEV;
- if (!(data = kzalloc(sizeof(struct gl518_data), GFP_KERNEL))) {
- err = -ENOMEM;
- goto exit;
- }
+ /* Now, we do the remaining detection. */
+ if ((gl518_read_value(client, GL518_REG_CHIP_ID) != 0x80)
+ || (gl518_read_value(client, GL518_REG_CONF) & 0x80))
+ return -ENODEV;
- client = &data->client;
- i2c_set_clientdata(client, data);
+ /* Determine the chip type. */
+ rev = gl518_read_value(client, GL518_REG_REVISION);
+ if (rev != 0x00 && rev != 0x80)
+ return -ENODEV;
- client->addr = address;
- client->adapter = adapter;
- client->driver = &gl518_driver;
+ strlcpy(info->type, "gl518sm", I2C_NAME_SIZE);
- /* Now, we do the remaining detection. */
+ return 0;
+}
- if (kind < 0) {
- if ((gl518_read_value(client, GL518_REG_CHIP_ID) != 0x80)
- || (gl518_read_value(client, GL518_REG_CONF) & 0x80))
- goto exit_free;
- }
+static int gl518_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct gl518_data *data;
+ int err, revision;
- /* Determine the chip type. */
- if (kind <= 0) {
- i = gl518_read_value(client, GL518_REG_REVISION);
- if (i == 0x00) {
- kind = gl518sm_r00;
- } else if (i == 0x80) {
- kind = gl518sm_r80;
- } else {
- if (kind <= 0)
- dev_info(&adapter->dev,
- "Ignoring 'force' parameter for unknown "
- "chip at adapter %d, address 0x%02x\n",
- i2c_adapter_id(adapter), address);
- goto exit_free;
- }
+ data = kzalloc(sizeof(struct gl518_data), GFP_KERNEL);
+ if (!data) {
+ err = -ENOMEM;
+ goto exit;
}
- /* Fill in the remaining client fields */
- strlcpy(client->name, "gl518sm", I2C_NAME_SIZE);
- data->type = kind;
+ i2c_set_clientdata(client, data);
+ revision = gl518_read_value(client, GL518_REG_REVISION);
+ data->type = revision == 0x80 ? gl518sm_r80 : gl518sm_r00;
mutex_init(&data->update_lock);
- /* Tell the I2C layer a new client has arrived */
- if ((err = i2c_attach_client(client)))
- goto exit_free;
-
/* Initialize the GL518SM chip */
data->alarm_mask = 0xff;
gl518_init_client(client);
/* Register sysfs hooks */
if ((err = sysfs_create_group(&client->dev.kobj, &gl518_group)))
- goto exit_detach;
+ goto exit_free;
if (data->type == gl518sm_r80)
if ((err = sysfs_create_group(&client->dev.kobj,
&gl518_group_r80)))
sysfs_remove_group(&client->dev.kobj, &gl518_group);
if (data->type == gl518sm_r80)
sysfs_remove_group(&client->dev.kobj, &gl518_group_r80);
-exit_detach:
- i2c_detach_client(client);
exit_free:
kfree(data);
exit:
gl518_write_value(client, GL518_REG_CONF, 0x40 | regvalue);
}
-static int gl518_detach_client(struct i2c_client *client)
+static int gl518_remove(struct i2c_client *client)
{
struct gl518_data *data = i2c_get_clientdata(client);
- int err;
hwmon_device_unregister(data->hwmon_dev);
sysfs_remove_group(&client->dev.kobj, &gl518_group);
if (data->type == gl518sm_r80)
sysfs_remove_group(&client->dev.kobj, &gl518_group_r80);
- if ((err = i2c_detach_client(client)))
- return err;
-
kfree(data);
return 0;
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff