-static void lm85_write_value(struct i2c_client *client, u8 reg, int value)
-{
- switch (reg) {
- case LM85_REG_FAN(0): /* Write WORD data */
- case LM85_REG_FAN(1):
- case LM85_REG_FAN(2):
- case LM85_REG_FAN(3):
- case LM85_REG_FAN_MIN(0):
- case LM85_REG_FAN_MIN(1):
- case LM85_REG_FAN_MIN(2):
- case LM85_REG_FAN_MIN(3):
- /* NOTE: ALARM is read only, so not included here */
- i2c_smbus_write_byte_data(client, reg, value & 0xff);
- i2c_smbus_write_byte_data(client, reg + 1, value >> 8);
- break;
- default: /* Write BYTE data */
- i2c_smbus_write_byte_data(client, reg, value);
- break;
- }
-}
-
-static struct lm85_data *lm85_update_device(struct device *dev)
-{
- struct i2c_client *client = to_i2c_client(dev);
- struct lm85_data *data = i2c_get_clientdata(client);
- int i;
-
- mutex_lock(&data->update_lock);
-
- if (!data->valid ||
- time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL)) {
- /* Things that change quickly */
- dev_dbg(&client->dev, "Reading sensor values\n");
-
- /*
- * Have to read extended bits first to "freeze" the
- * more significant bits that are read later.
- * There are 2 additional resolution bits per channel and we
- * have room for 4, so we shift them to the left.
- */
- if (data->type == adm1027 || data->type == adt7463 ||
- data->type == adt7468) {
- int ext1 = lm85_read_value(client,
- ADM1027_REG_EXTEND_ADC1);
- int ext2 = lm85_read_value(client,
- ADM1027_REG_EXTEND_ADC2);
- int val = (ext1 << 8) + ext2;
-
- for (i = 0; i <= 4; i++)
- data->in_ext[i] =
- ((val >> (i * 2)) & 0x03) << 2;
-
- for (i = 0; i <= 2; i++)
- data->temp_ext[i] =
- (val >> ((i + 4) * 2)) & 0x0c;
- }
-
- 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));
- data->fan[i] =
- lm85_read_value(client, LM85_REG_FAN(i));
- }
-
- if (!data->has_vid5)
- data->in[4] = lm85_read_value(client, LM85_REG_IN(4));
-
- if (data->type == adt7468)
- data->cfg5 = lm85_read_value(client, ADT7468_REG_CFG5);
-
- for (i = 0; i <= 2; ++i) {
- data->temp[i] =
- lm85_read_value(client, LM85_REG_TEMP(i));
- data->pwm[i] =
- lm85_read_value(client, LM85_REG_PWM(i));
-
- if (IS_ADT7468_OFF64(data))
- data->temp[i] -= 64;
- }
-
- data->alarms = lm85_read_value(client, LM85_REG_ALARM1);
-
- if (data->type == emc6d100) {
- /* Three more voltage sensors */
- for (i = 5; i <= 7; ++i) {
- data->in[i] = lm85_read_value(client,
- EMC6D100_REG_IN(i));
- }
- /* More alarm bits */
- data->alarms |= lm85_read_value(client,
- EMC6D100_REG_ALARM3) << 16;
- } else if (data->type == emc6d102 || data->type == emc6d103 ||
- data->type == emc6d103s) {
- /*
- * Have to read LSB bits after the MSB ones because
- * the reading of the MSB bits has frozen the
- * LSBs (backward from the ADM1027).
- */
- int ext1 = lm85_read_value(client,
- EMC6D102_REG_EXTEND_ADC1);
- int ext2 = lm85_read_value(client,
- EMC6D102_REG_EXTEND_ADC2);
- int ext3 = lm85_read_value(client,
- EMC6D102_REG_EXTEND_ADC3);
- int ext4 = lm85_read_value(client,
- EMC6D102_REG_EXTEND_ADC4);
- data->in_ext[0] = ext3 & 0x0f;
- data->in_ext[1] = ext4 & 0x0f;
- data->in_ext[2] = ext4 >> 4;
- data->in_ext[3] = ext3 >> 4;
- data->in_ext[4] = ext2 >> 4;
-
- data->temp_ext[0] = ext1 & 0x0f;
- data->temp_ext[1] = ext2 & 0x0f;
- data->temp_ext[2] = ext1 >> 4;
- }
-
- data->last_reading = jiffies;
- } /* last_reading */
-
- if (!data->valid ||
- time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL)) {
- /* Things that don't change often */
- dev_dbg(&client->dev, "Reading config values\n");
-
- 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));
- data->fan_min[i] =
- lm85_read_value(client, LM85_REG_FAN_MIN(i));
- }
-
- if (!data->has_vid5) {
- 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,
- EMC6D100_REG_IN_MIN(i));
- data->in_max[i] = lm85_read_value(client,
- EMC6D100_REG_IN_MAX(i));
- }
- }
-
- for (i = 0; i <= 2; ++i) {
- int val;
-
- data->temp_min[i] =
- lm85_read_value(client, LM85_REG_TEMP_MIN(i));
- data->temp_max[i] =
- lm85_read_value(client, LM85_REG_TEMP_MAX(i));
-
- data->autofan[i].config =
- lm85_read_value(client, LM85_REG_AFAN_CONFIG(i));
- val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i));
- data->pwm_freq[i] = val & 0x07;
- data->zone[i].range = val >> 4;
- data->autofan[i].min_pwm =
- lm85_read_value(client, LM85_REG_AFAN_MINPWM(i));
- data->zone[i].limit =
- lm85_read_value(client, LM85_REG_AFAN_LIMIT(i));
- data->zone[i].critical =
- lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i));
-
- if (IS_ADT7468_OFF64(data)) {
- data->temp_min[i] -= 64;
- data->temp_max[i] -= 64;
- data->zone[i].limit -= 64;
- data->zone[i].critical -= 64;
- }
- }
-
- if (data->type != emc6d103s) {
- i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
- data->autofan[0].min_off = (i & 0x20) != 0;
- data->autofan[1].min_off = (i & 0x40) != 0;
- data->autofan[2].min_off = (i & 0x80) != 0;
-
- i = lm85_read_value(client, LM85_REG_AFAN_HYST1);
- data->zone[0].hyst = i >> 4;
- data->zone[1].hyst = i & 0x0f;
-
- i = lm85_read_value(client, LM85_REG_AFAN_HYST2);
- data->zone[2].hyst = i >> 4;
- }
-
- data->last_config = jiffies;
- } /* last_config */
-
- data->valid = 1;
-
- mutex_unlock(&data->update_lock);