#include <linux/hwmon.h>
#include <linux/hwmon-vid.h>
#include <linux/err.h>
+#include <linux/mutex.h>
/* Addresses to scan */
static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
#define LM85_DATA_INTERVAL (HZ + HZ / 2)
#define LM85_CONFIG_INTERVAL (1 * 60 * HZ)
-/* For each registered LM85, we need to keep some data in memory. That
- data is pointed to by lm85_list[NR]->data. The structure itself is
- dynamically allocated, at the same time when a new lm85 client is
- allocated. */
-
/* LM85 can automatically adjust fan speeds based on temperature
* This structure encapsulates an entire Zone config. There are
* three zones (one for each temperature input) on the lm85
u8 min_off; /* Min PWM or OFF below "limit", flag */
};
+/* For each registered chip, we need to keep some data in memory.
+ The structure is dynamically allocated. */
struct lm85_data {
struct i2c_client client;
struct class_device *class_dev;
- struct semaphore lock;
enum chips type;
- struct semaphore update_lock;
+ struct mutex update_lock;
int valid; /* !=0 if following fields are valid */
unsigned long last_reading; /* In jiffies */
unsigned long last_config; /* In jiffies */
int kind);
static int lm85_detach_client(struct i2c_client *client);
-static int lm85_read_value(struct i2c_client *client, u8 register);
-static int lm85_write_value(struct i2c_client *client, u8 register, int value);
+static int lm85_read_value(struct i2c_client *client, u8 reg);
+static int lm85_write_value(struct i2c_client *client, u8 reg, int value);
static struct lm85_data *lm85_update_device(struct device *dev);
static void lm85_init_client(struct i2c_client *client);
static struct i2c_driver lm85_driver = {
- .owner = THIS_MODULE,
- .name = "lm85",
+ .driver = {
+ .name = "lm85",
+ },
.id = I2C_DRIVERID_LM85,
- .flags = I2C_DF_NOTIFY,
.attach_adapter = lm85_attach_adapter,
.detach_client = lm85_detach_client,
};
struct lm85_data *data = i2c_get_clientdata(client);
long val = simple_strtol(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->fan_min[nr] = FAN_TO_REG(val);
lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf)
{
struct lm85_data *data = lm85_update_device(dev);
- return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
+ int vid;
+
+ if (data->type == adt7463 && (data->vid & 0x80)) {
+ /* 6-pin VID (VRM 10) */
+ vid = vid_from_reg(data->vid & 0x3f, data->vrm);
+ } else {
+ /* 5-pin VID (VRM 9) */
+ vid = vid_from_reg(data->vid & 0x1f, data->vrm);
+ }
+
+ return sprintf(buf, "%d\n", vid);
}
static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
struct lm85_data *data = i2c_get_clientdata(client);
long val = simple_strtol(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->pwm[nr] = PWM_TO_REG(val);
lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
static ssize_t show_pwm_enable(struct device *dev, char *buf, int nr)
struct lm85_data *data = i2c_get_clientdata(client);
long val = simple_strtol(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->in_min[nr] = INS_TO_REG(nr, val);
lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
static ssize_t show_in_max(struct device *dev, char *buf, int nr)
struct lm85_data *data = i2c_get_clientdata(client);
long val = simple_strtol(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->in_max[nr] = INS_TO_REG(nr, val);
lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
#define show_in_reg(offset) \
struct lm85_data *data = i2c_get_clientdata(client);
long val = simple_strtol(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->temp_min[nr] = TEMP_TO_REG(val);
lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
static ssize_t show_temp_max(struct device *dev, char *buf, int nr)
struct lm85_data *data = i2c_get_clientdata(client);
long val = simple_strtol(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->temp_max[nr] = TEMP_TO_REG(val);
lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
#define show_temp_reg(offset) \
struct lm85_data *data = i2c_get_clientdata(client);
long val = simple_strtol(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->autofan[nr].config = (data->autofan[nr].config & (~0xe0))
| ZONE_TO_REG(val) ;
lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
data->autofan[nr].config);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
static ssize_t show_pwm_auto_pwm_min(struct device *dev, char *buf, int nr)
struct lm85_data *data = i2c_get_clientdata(client);
long val = simple_strtol(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->autofan[nr].min_pwm = PWM_TO_REG(val);
lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr),
data->autofan[nr].min_pwm);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
static ssize_t show_pwm_auto_pwm_minctl(struct device *dev, char *buf, int nr)
struct lm85_data *data = i2c_get_clientdata(client);
long val = simple_strtol(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->autofan[nr].min_off = val;
lm85_write_value(client, LM85_REG_AFAN_SPIKE1, data->smooth[0]
| data->syncpwm3
| (data->autofan[1].min_off ? 0x40 : 0)
| (data->autofan[2].min_off ? 0x80 : 0)
);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
static ssize_t show_pwm_auto_pwm_freq(struct device *dev, char *buf, int nr)
struct lm85_data *data = i2c_get_clientdata(client);
long val = simple_strtol(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->autofan[nr].freq = FREQ_TO_REG(val);
lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
(data->zone[nr].range << 4)
| data->autofan[nr].freq
);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
#define pwm_auto(offset) \
int min;
long val = simple_strtol(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
min = TEMP_FROM_REG(data->zone[nr].limit);
data->zone[nr].off_desired = TEMP_TO_REG(val);
data->zone[nr].hyst = HYST_TO_REG(min - val);
(data->zone[2].hyst << 4)
);
}
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
static ssize_t show_temp_auto_temp_min(struct device *dev, char *buf, int nr)
struct lm85_data *data = i2c_get_clientdata(client);
long val = simple_strtol(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->zone[nr].limit = TEMP_TO_REG(val);
lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr),
data->zone[nr].limit);
(data->zone[2].hyst << 4)
);
}
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
static ssize_t show_temp_auto_temp_max(struct device *dev, char *buf, int nr)
int min;
long val = simple_strtol(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
min = TEMP_FROM_REG(data->zone[nr].limit);
data->zone[nr].max_desired = TEMP_TO_REG(val);
data->zone[nr].range = RANGE_TO_REG(
lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
((data->zone[nr].range & 0x0f) << 4)
| (data->autofan[nr].freq & 0x07));
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
static ssize_t show_temp_auto_temp_crit(struct device *dev, char *buf, int nr)
struct lm85_data *data = i2c_get_clientdata(client);
long val = simple_strtol(buf, NULL, 10);
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
data->zone[nr].critical = TEMP_TO_REG(val);
lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr),
data->zone[nr].critical);
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return count;
}
#define temp_auto(offset) \
temp_auto(2);
temp_auto(3);
-int lm85_attach_adapter(struct i2c_adapter *adapter)
+static int lm85_attach_adapter(struct i2c_adapter *adapter)
{
if (!(adapter->class & I2C_CLASS_HWMON))
return 0;
return i2c_probe(adapter, &addr_data, lm85_detect);
}
-int lm85_detect(struct i2c_adapter *adapter, int address,
+static struct attribute *lm85_attributes[] = {
+ &dev_attr_fan1_input.attr,
+ &dev_attr_fan2_input.attr,
+ &dev_attr_fan3_input.attr,
+ &dev_attr_fan4_input.attr,
+ &dev_attr_fan1_min.attr,
+ &dev_attr_fan2_min.attr,
+ &dev_attr_fan3_min.attr,
+ &dev_attr_fan4_min.attr,
+ &dev_attr_pwm1.attr,
+ &dev_attr_pwm2.attr,
+ &dev_attr_pwm3.attr,
+ &dev_attr_pwm1_enable.attr,
+ &dev_attr_pwm2_enable.attr,
+ &dev_attr_pwm3_enable.attr,
+ &dev_attr_in0_input.attr,
+ &dev_attr_in1_input.attr,
+ &dev_attr_in2_input.attr,
+ &dev_attr_in3_input.attr,
+ &dev_attr_in0_min.attr,
+ &dev_attr_in1_min.attr,
+ &dev_attr_in2_min.attr,
+ &dev_attr_in3_min.attr,
+ &dev_attr_in0_max.attr,
+ &dev_attr_in1_max.attr,
+ &dev_attr_in2_max.attr,
+ &dev_attr_in3_max.attr,
+ &dev_attr_temp1_input.attr,
+ &dev_attr_temp2_input.attr,
+ &dev_attr_temp3_input.attr,
+ &dev_attr_temp1_min.attr,
+ &dev_attr_temp2_min.attr,
+ &dev_attr_temp3_min.attr,
+ &dev_attr_temp1_max.attr,
+ &dev_attr_temp2_max.attr,
+ &dev_attr_temp3_max.attr,
+ &dev_attr_vrm.attr,
+ &dev_attr_cpu0_vid.attr,
+ &dev_attr_alarms.attr,
+ &dev_attr_pwm1_auto_channels.attr,
+ &dev_attr_pwm2_auto_channels.attr,
+ &dev_attr_pwm3_auto_channels.attr,
+ &dev_attr_pwm1_auto_pwm_min.attr,
+ &dev_attr_pwm2_auto_pwm_min.attr,
+ &dev_attr_pwm3_auto_pwm_min.attr,
+ &dev_attr_pwm1_auto_pwm_minctl.attr,
+ &dev_attr_pwm2_auto_pwm_minctl.attr,
+ &dev_attr_pwm3_auto_pwm_minctl.attr,
+ &dev_attr_pwm1_auto_pwm_freq.attr,
+ &dev_attr_pwm2_auto_pwm_freq.attr,
+ &dev_attr_pwm3_auto_pwm_freq.attr,
+ &dev_attr_temp1_auto_temp_off.attr,
+ &dev_attr_temp2_auto_temp_off.attr,
+ &dev_attr_temp3_auto_temp_off.attr,
+ &dev_attr_temp1_auto_temp_min.attr,
+ &dev_attr_temp2_auto_temp_min.attr,
+ &dev_attr_temp3_auto_temp_min.attr,
+ &dev_attr_temp1_auto_temp_max.attr,
+ &dev_attr_temp2_auto_temp_max.attr,
+ &dev_attr_temp3_auto_temp_max.attr,
+ &dev_attr_temp1_auto_temp_crit.attr,
+ &dev_attr_temp2_auto_temp_crit.attr,
+ &dev_attr_temp3_auto_temp_crit.attr,
+
+ NULL
+};
+
+static const struct attribute_group lm85_group = {
+ .attrs = lm85_attributes,
+};
+
+static struct attribute *lm85_attributes_opt[] = {
+ &dev_attr_in4_input.attr,
+ &dev_attr_in4_min.attr,
+ &dev_attr_in4_max.attr,
+
+ NULL
+};
+
+static const struct attribute_group lm85_group_opt = {
+ .attrs = lm85_attributes_opt,
+};
+
+static int lm85_detect(struct i2c_adapter *adapter, int address,
int kind)
{
int company, verstep ;
client structure, even though we cannot fill it completely yet.
But it allows us to access lm85_{read,write}_value. */
- if (!(data = kmalloc(sizeof(struct lm85_data), GFP_KERNEL))) {
+ if (!(data = kzalloc(sizeof(struct lm85_data), GFP_KERNEL))) {
err = -ENOMEM;
goto ERROR0;
}
- memset(data, 0, sizeof(struct lm85_data));
new_client = &data->client;
i2c_set_clientdata(new_client, data);
/* Fill in the remaining client fields */
data->type = kind;
data->valid = 0;
- init_MUTEX(&data->update_lock);
+ mutex_init(&data->update_lock);
/* Tell the I2C layer a new client has arrived */
if ((err = i2c_attach_client(new_client)))
lm85_init_client(new_client);
/* Register sysfs hooks */
+ if ((err = sysfs_create_group(&new_client->dev.kobj, &lm85_group)))
+ goto ERROR2;
+
+ /* The ADT7463 has an optional VRM 10 mode where pin 21 is used
+ as a sixth digital VID input rather than an analog input. */
+ data->vid = lm85_read_value(new_client, LM85_REG_VID);
+ if (!(kind == adt7463 && (data->vid & 0x80)))
+ if ((err = device_create_file(&new_client->dev,
+ &dev_attr_in4_input))
+ || (err = device_create_file(&new_client->dev,
+ &dev_attr_in4_min))
+ || (err = device_create_file(&new_client->dev,
+ &dev_attr_in4_max)))
+ goto ERROR3;
+
data->class_dev = hwmon_device_register(&new_client->dev);
if (IS_ERR(data->class_dev)) {
err = PTR_ERR(data->class_dev);
- goto ERROR2;
+ goto ERROR3;
}
- device_create_file(&new_client->dev, &dev_attr_fan1_input);
- device_create_file(&new_client->dev, &dev_attr_fan2_input);
- device_create_file(&new_client->dev, &dev_attr_fan3_input);
- device_create_file(&new_client->dev, &dev_attr_fan4_input);
- device_create_file(&new_client->dev, &dev_attr_fan1_min);
- device_create_file(&new_client->dev, &dev_attr_fan2_min);
- device_create_file(&new_client->dev, &dev_attr_fan3_min);
- device_create_file(&new_client->dev, &dev_attr_fan4_min);
- device_create_file(&new_client->dev, &dev_attr_pwm1);
- device_create_file(&new_client->dev, &dev_attr_pwm2);
- device_create_file(&new_client->dev, &dev_attr_pwm3);
- device_create_file(&new_client->dev, &dev_attr_pwm1_enable);
- device_create_file(&new_client->dev, &dev_attr_pwm2_enable);
- device_create_file(&new_client->dev, &dev_attr_pwm3_enable);
- device_create_file(&new_client->dev, &dev_attr_in0_input);
- device_create_file(&new_client->dev, &dev_attr_in1_input);
- device_create_file(&new_client->dev, &dev_attr_in2_input);
- device_create_file(&new_client->dev, &dev_attr_in3_input);
- device_create_file(&new_client->dev, &dev_attr_in4_input);
- device_create_file(&new_client->dev, &dev_attr_in0_min);
- device_create_file(&new_client->dev, &dev_attr_in1_min);
- device_create_file(&new_client->dev, &dev_attr_in2_min);
- device_create_file(&new_client->dev, &dev_attr_in3_min);
- device_create_file(&new_client->dev, &dev_attr_in4_min);
- device_create_file(&new_client->dev, &dev_attr_in0_max);
- device_create_file(&new_client->dev, &dev_attr_in1_max);
- device_create_file(&new_client->dev, &dev_attr_in2_max);
- device_create_file(&new_client->dev, &dev_attr_in3_max);
- device_create_file(&new_client->dev, &dev_attr_in4_max);
- device_create_file(&new_client->dev, &dev_attr_temp1_input);
- device_create_file(&new_client->dev, &dev_attr_temp2_input);
- device_create_file(&new_client->dev, &dev_attr_temp3_input);
- device_create_file(&new_client->dev, &dev_attr_temp1_min);
- device_create_file(&new_client->dev, &dev_attr_temp2_min);
- device_create_file(&new_client->dev, &dev_attr_temp3_min);
- device_create_file(&new_client->dev, &dev_attr_temp1_max);
- device_create_file(&new_client->dev, &dev_attr_temp2_max);
- device_create_file(&new_client->dev, &dev_attr_temp3_max);
- device_create_file(&new_client->dev, &dev_attr_vrm);
- device_create_file(&new_client->dev, &dev_attr_cpu0_vid);
- device_create_file(&new_client->dev, &dev_attr_alarms);
- device_create_file(&new_client->dev, &dev_attr_pwm1_auto_channels);
- device_create_file(&new_client->dev, &dev_attr_pwm2_auto_channels);
- device_create_file(&new_client->dev, &dev_attr_pwm3_auto_channels);
- device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_min);
- device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_min);
- device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_min);
- device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_minctl);
- device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_minctl);
- device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_minctl);
- device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_freq);
- device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_freq);
- device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_freq);
- device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_off);
- device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_off);
- device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_off);
- device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_min);
- device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_min);
- device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_min);
- device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_max);
- device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_max);
- device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_max);
- device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_crit);
- device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_crit);
- device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_crit);
-
return 0;
/* Error out and cleanup code */
+ ERROR3:
+ sysfs_remove_group(&new_client->dev.kobj, &lm85_group);
+ sysfs_remove_group(&new_client->dev.kobj, &lm85_group_opt);
ERROR2:
i2c_detach_client(new_client);
ERROR1:
return err;
}
-int lm85_detach_client(struct i2c_client *client)
+static int lm85_detach_client(struct i2c_client *client)
{
struct lm85_data *data = i2c_get_clientdata(client);
hwmon_device_unregister(data->class_dev);
+ sysfs_remove_group(&client->dev.kobj, &lm85_group);
+ sysfs_remove_group(&client->dev.kobj, &lm85_group_opt);
i2c_detach_client(client);
kfree(data);
return 0;
}
-int lm85_read_value(struct i2c_client *client, u8 reg)
+static int lm85_read_value(struct i2c_client *client, u8 reg)
{
int res;
return res ;
}
-int lm85_write_value(struct i2c_client *client, u8 reg, int value)
+static int lm85_write_value(struct i2c_client *client, u8 reg, int value)
{
int res ;
return res ;
}
-void lm85_init_client(struct i2c_client *client)
+static void lm85_init_client(struct i2c_client *client)
{
int value;
struct lm85_data *data = i2c_get_clientdata(client);
struct lm85_data *data = i2c_get_clientdata(client);
int i;
- down(&data->update_lock);
+ mutex_lock(&data->update_lock);
if ( !data->valid ||
time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL) ) {
irrelevant. So it is left in 4*/
data->adc_scale = (data->type == emc6d102 ) ? 16 : 4;
- for (i = 0; i <= 4; ++i) {
+ data->vid = lm85_read_value(client, LM85_REG_VID);
+
+ for (i = 0; i <= 3; ++i) {
data->in[i] =
lm85_read_value(client, LM85_REG_IN(i));
}
+ if (!(data->type == adt7463 && (data->vid & 0x80))) {
+ data->in[4] = lm85_read_value(client,
+ LM85_REG_IN(4));
+ }
+
for (i = 0; i <= 3; ++i) {
data->fan[i] =
lm85_read_value(client, LM85_REG_FAN(i));
/* Things that don't change often */
dev_dbg(&client->dev, "Reading config values\n");
- for (i = 0; i <= 4; ++i) {
+ for (i = 0; i <= 3; ++i) {
data->in_min[i] =
lm85_read_value(client, LM85_REG_IN_MIN(i));
data->in_max[i] =
lm85_read_value(client, LM85_REG_IN_MAX(i));
}
+ if (!(data->type == adt7463 && (data->vid & 0x80))) {
+ data->in_min[4] = lm85_read_value(client,
+ LM85_REG_IN_MIN(4));
+ data->in_max[4] = lm85_read_value(client,
+ LM85_REG_IN_MAX(4));
+ }
+
if ( data->type == emc6d100 ) {
for (i = 5; i <= 7; ++i) {
data->in_min[i] =
lm85_read_value(client, LM85_REG_TEMP_MAX(i));
}
- data->vid = lm85_read_value(client, LM85_REG_VID);
-
for (i = 0; i <= 2; ++i) {
int val ;
data->autofan[i].config =
data->valid = 1;
- up(&data->update_lock);
+ mutex_unlock(&data->update_lock);
return data;
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff