Supports the following chips:
Chip #vin #fan #pwm #temp chip_id man_id
- w83627ehf 10 5 - 3 0x88 0x5ca3
+ w83627ehf - 5 - 3 0x88 0x5ca3
+
+ This is a preliminary version of the driver, only supporting the
+ fan and temperature inputs. The chip does much more than that.
*/
#include <linux/module.h>
static const u16 W83627EHF_REG_FAN[] = { 0x28, 0x29, 0x2a, 0x3f, 0x553 };
static const u16 W83627EHF_REG_FAN_MIN[] = { 0x3b, 0x3c, 0x3d, 0x3e, 0x55c };
-/* The W83627EHF registers for nr=7,8,9 are in bank 5 */
-#define W83627EHF_REG_IN_MAX(nr) ((nr < 7) ? (0x2b + (nr) * 2) : \
- (0x554 + (((nr) - 7) * 2)))
-#define W83627EHF_REG_IN_MIN(nr) ((nr < 7) ? (0x2c + (nr) * 2) : \
- (0x555 + (((nr) - 7) * 2)))
-#define W83627EHF_REG_IN(nr) ((nr < 7) ? (0x20 + (nr)) : \
- (0x550 + (nr) - 7))
-
#define W83627EHF_REG_TEMP1 0x27
#define W83627EHF_REG_TEMP1_HYST 0x3a
#define W83627EHF_REG_TEMP1_OVER 0x39
#define W83627EHF_REG_DIODE 0x59
#define W83627EHF_REG_SMI_OVT 0x4C
-#define W83627EHF_REG_ALARM1 0x459
-#define W83627EHF_REG_ALARM2 0x45A
-#define W83627EHF_REG_ALARM3 0x45B
-
/*
* Conversions
*/
return (temp + 500) / 1000;
}
-/* Some of analog inputs have internal scaling (2x), 8mV is ADC LSB */
-
-static u8 scale_in[10] = { 8, 8, 16, 16, 8, 8, 8, 16, 16, 8 };
-
-static inline long in_from_reg(u8 reg, u8 nr)
-{
- return reg * scale_in[nr];
-}
-
-static inline u8 in_to_reg(u32 val, u8 nr)
-{
- return SENSORS_LIMIT(((val + (scale_in[nr] / 2)) / scale_in[nr]), 0, 255);
-}
-
/*
* Data structures and manipulation thereof
*/
unsigned long last_updated; /* In jiffies */
/* Register values */
- u8 in[10]; /* Register value */
- u8 in_max[10]; /* Register value */
- u8 in_min[10]; /* Register value */
u8 fan[5];
u8 fan_min[5];
u8 fan_div[5];
s16 temp[2];
s16 temp_max[2];
s16 temp_max_hyst[2];
- u32 alarms;
};
static inline int is_word_sized(u16 reg)
data->fan_div[3] |= (i >> 5) & 0x04;
}
- /* Measured voltages and limits */
- for (i = 0; i < 10; i++) {
- data->in[i] = w83627ehf_read_value(client,
- W83627EHF_REG_IN(i));
- data->in_min[i] = w83627ehf_read_value(client,
- W83627EHF_REG_IN_MIN(i));
- data->in_max[i] = w83627ehf_read_value(client,
- W83627EHF_REG_IN_MAX(i));
- }
-
/* Measured fan speeds and limits */
for (i = 0; i < 5; i++) {
if (!(data->has_fan & (1 << i)))
W83627EHF_REG_TEMP_HYST[i]);
}
- data->alarms = w83627ehf_read_value(client,
- W83627EHF_REG_ALARM1) |
- (w83627ehf_read_value(client,
- W83627EHF_REG_ALARM2) << 8) |
- (w83627ehf_read_value(client,
- W83627EHF_REG_ALARM3) << 16);
-
data->last_updated = jiffies;
data->valid = 1;
}
/*
* Sysfs callback functions
*/
-#define show_in_reg(reg) \
-static ssize_t \
-show_##reg(struct device *dev, struct device_attribute *attr, \
- char *buf) \
-{ \
- struct w83627ehf_data *data = w83627ehf_update_device(dev); \
- struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
- int nr = sensor_attr->index; \
- return sprintf(buf, "%ld\n", in_from_reg(data->reg[nr], nr)); \
-}
-show_in_reg(in)
-show_in_reg(in_min)
-show_in_reg(in_max)
-
-#define store_in_reg(REG, reg) \
-static ssize_t \
-store_in_##reg (struct device *dev, struct device_attribute *attr, \
- const char *buf, size_t count) \
-{ \
- struct i2c_client *client = to_i2c_client(dev); \
- struct w83627ehf_data *data = i2c_get_clientdata(client); \
- struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
- int nr = sensor_attr->index; \
- u32 val = simple_strtoul(buf, NULL, 10); \
- \
- mutex_lock(&data->update_lock); \
- data->in_##reg[nr] = in_to_reg(val, nr); \
- w83627ehf_write_value(client, W83627EHF_REG_IN_##REG(nr), \
- data->in_##reg[nr]); \
- mutex_unlock(&data->update_lock); \
- return count; \
-}
-
-store_in_reg(MIN, min)
-store_in_reg(MAX, max)
-
-static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, char *buf)
-{
- struct w83627ehf_data *data = w83627ehf_update_device(dev);
- struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
- int nr = sensor_attr->index;
- return sprintf(buf, "%u\n", (data->alarms >> nr) & 0x01);
-}
-
-static struct sensor_device_attribute sda_in_input[] = {
- SENSOR_ATTR(in0_input, S_IRUGO, show_in, NULL, 0),
- SENSOR_ATTR(in1_input, S_IRUGO, show_in, NULL, 1),
- SENSOR_ATTR(in2_input, S_IRUGO, show_in, NULL, 2),
- SENSOR_ATTR(in3_input, S_IRUGO, show_in, NULL, 3),
- SENSOR_ATTR(in4_input, S_IRUGO, show_in, NULL, 4),
- SENSOR_ATTR(in5_input, S_IRUGO, show_in, NULL, 5),
- SENSOR_ATTR(in6_input, S_IRUGO, show_in, NULL, 6),
- SENSOR_ATTR(in7_input, S_IRUGO, show_in, NULL, 7),
- SENSOR_ATTR(in8_input, S_IRUGO, show_in, NULL, 8),
- SENSOR_ATTR(in9_input, S_IRUGO, show_in, NULL, 9),
-};
-
-static struct sensor_device_attribute sda_in_alarm[] = {
- SENSOR_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0),
- SENSOR_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1),
- SENSOR_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2),
- SENSOR_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3),
- SENSOR_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8),
- SENSOR_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 21),
- SENSOR_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 20),
- SENSOR_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 16),
- SENSOR_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 17),
- SENSOR_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 19),
-};
-
-static struct sensor_device_attribute sda_in_min[] = {
- SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 0),
- SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 1),
- SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 2),
- SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 3),
- SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 4),
- SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 5),
- SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 6),
- SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 7),
- SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 8),
- SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 9),
-};
-
-static struct sensor_device_attribute sda_in_max[] = {
- SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 0),
- SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 1),
- SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 2),
- SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 3),
- SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 4),
- SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 5),
- SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 6),
- SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 7),
- SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 8),
- SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 9),
-};
-
-static void device_create_file_in(struct device *dev, int i)
-{
- device_create_file(dev, &sda_in_input[i].dev_attr);
- device_create_file(dev, &sda_in_alarm[i].dev_attr);
- device_create_file(dev, &sda_in_min[i].dev_attr);
- device_create_file(dev, &sda_in_max[i].dev_attr);
-}
#define show_fan_reg(reg) \
static ssize_t \
SENSOR_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 4),
};
-static struct sensor_device_attribute sda_fan_alarm[] = {
- SENSOR_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6),
- SENSOR_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7),
- SENSOR_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11),
- SENSOR_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 10),
- SENSOR_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 23),
-};
-
static struct sensor_device_attribute sda_fan_min[] = {
SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min,
store_fan_min, 0),
static void device_create_file_fan(struct device *dev, int i)
{
device_create_file(dev, &sda_fan_input[i].dev_attr);
- device_create_file(dev, &sda_fan_alarm[i].dev_attr);
device_create_file(dev, &sda_fan_div[i].dev_attr);
device_create_file(dev, &sda_fan_min[i].dev_attr);
}
store_temp_max_hyst, 0),
SENSOR_ATTR(temp3_max_hyst, S_IRUGO | S_IWUSR, show_temp_max_hyst,
store_temp_max_hyst, 1),
- SENSOR_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4),
- SENSOR_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5),
- SENSOR_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13),
};
/*
goto exit_detach;
}
- for (i = 0; i < 10; i++)
- device_create_file_in(dev, i);
-
for (i = 0; i < 5; i++) {
if (data->has_fan & (1 << i))
device_create_file_fan(dev, i);
git://git.onelab.eu / linux-2.6.git / blobdiff