lm85.c

h内核

	.flags          = I2C_DF_NOTIFY,
	.attach_adapter = lm85_attach_adapter,
	.detach_client  = lm85_detach_client,
};

/* Unique ID assigned to each LM85 detected */
static int lm85_id;


/* 4 Fans */
static ssize_t show_fan(struct device *dev, char *buf, int nr)
{
	struct lm85_data *data = lm85_update_device(dev);
	return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan[nr]) );
}
static ssize_t show_fan_min(struct device *dev, char *buf, int nr)
{
	struct lm85_data *data = lm85_update_device(dev);
	return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan_min[nr]) );
}
static ssize_t set_fan_min(struct device *dev, const char *buf, 
		size_t count, int nr)
{
	struct i2c_client *client = to_i2c_client(dev);
	struct lm85_data *data = i2c_get_clientdata(client);
	int	val;

	down(&data->update_lock);
	val = simple_strtol(buf, NULL, 10);
	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);
	return count;
}

#define show_fan_offset(offset)						\
static ssize_t show_fan_##offset (struct device *dev, char *buf)	\
{									\
	return show_fan(dev, buf, offset - 1);				\
}									\
static ssize_t show_fan_##offset##_min (struct device *dev, char *buf)	\
{									\
	return show_fan_min(dev, buf, offset - 1);			\
}									\
static ssize_t set_fan_##offset##_min (struct device *dev, 		\
	const char *buf, size_t count) 					\
{									\
	return set_fan_min(dev, buf, count, offset - 1);		\
}									\
static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan_##offset,	\
		NULL);							\
static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, 		\
		show_fan_##offset##_min, set_fan_##offset##_min);

show_fan_offset(1);
show_fan_offset(2);
show_fan_offset(3);
show_fan_offset(4);

/* vid, vrm, alarms */

static ssize_t show_vid_reg(struct device *dev, char *buf)
{
	struct lm85_data *data = lm85_update_device(dev);
	return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
}

static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);

static ssize_t show_vrm_reg(struct device *dev, char *buf)
{
	struct lm85_data *data = lm85_update_device(dev);
	return sprintf(buf, "%ld\n", (long) data->vrm);
}

static ssize_t store_vrm_reg(struct device *dev, const char *buf, size_t count)
{
	struct i2c_client *client = to_i2c_client(dev);
	struct lm85_data *data = i2c_get_clientdata(client);
	u32 val;

	val = simple_strtoul(buf, NULL, 10);
	data->vrm = val;
	return count;
}

static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);

static ssize_t show_alarms_reg(struct device *dev, char *buf)
{
	struct lm85_data *data = lm85_update_device(dev);
	return sprintf(buf, "%ld\n", (long) ALARMS_FROM_REG(data->alarms));
}

static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);

/* pwm */

static ssize_t show_pwm(struct device *dev, char *buf, int nr)
{
	struct lm85_data *data = lm85_update_device(dev);
	return sprintf(buf,"%d\n", PWM_FROM_REG(data->pwm[nr]) );
}
static ssize_t set_pwm(struct device *dev, const char *buf, 
		size_t count, int nr)
{
	struct i2c_client *client = to_i2c_client(dev);
	struct lm85_data *data = i2c_get_clientdata(client);
	int	val;

	down(&data->update_lock);
	val = simple_strtol(buf, NULL, 10);
	data->pwm[nr] = PWM_TO_REG(val);
	lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]);
	up(&data->update_lock);
	return count;
}
static ssize_t show_pwm_enable(struct device *dev, char *buf, int nr)
{
	struct lm85_data *data = lm85_update_device(dev);
	int	pwm_zone;

	pwm_zone = ZONE_FROM_REG(data->autofan[nr].config);
	return sprintf(buf,"%d\n", (pwm_zone != 0 && pwm_zone != -1) );
}

#define show_pwm_reg(offset)						\
static ssize_t show_pwm_##offset (struct device *dev, char *buf)	\
{									\
	return show_pwm(dev, buf, offset - 1);				\
}									\
static ssize_t set_pwm_##offset (struct device *dev,			\
				 const char *buf, size_t count)		\
{									\
	return set_pwm(dev, buf, count, offset - 1);			\
}									\
static ssize_t show_pwm_enable##offset (struct device *dev, char *buf)	\
{									\
	return show_pwm_enable(dev, buf, offset - 1);			\
}									\
static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, 			\
		show_pwm_##offset, set_pwm_##offset);			\
static DEVICE_ATTR(pwm##offset##_enable, S_IRUGO, 			\
		show_pwm_enable##offset, NULL);

show_pwm_reg(1);
show_pwm_reg(2);
show_pwm_reg(3);

/* Voltages */

static ssize_t show_in(struct device *dev, char *buf, int nr)
{
	struct lm85_data *data = lm85_update_device(dev);
	return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in[nr]) );
}
static ssize_t show_in_min(struct device *dev, char *buf, int nr)
{
	struct lm85_data *data = lm85_update_device(dev);
	return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_min[nr]) );
}
static ssize_t set_in_min(struct device *dev, const char *buf, 
		size_t count, int nr)
{
	struct i2c_client *client = to_i2c_client(dev);
	struct lm85_data *data = i2c_get_clientdata(client);
	int	val;

	down(&data->update_lock);
	val = simple_strtol(buf, NULL, 10);
	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);
	return count;
}
static ssize_t show_in_max(struct device *dev, char *buf, int nr)
{
	struct lm85_data *data = lm85_update_device(dev);
	return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_max[nr]) );
}
static ssize_t set_in_max(struct device *dev, const char *buf, 
		size_t count, int nr)
{
	struct i2c_client *client = to_i2c_client(dev);
	struct lm85_data *data = i2c_get_clientdata(client);
	int	val;

	down(&data->update_lock);
	val = simple_strtol(buf, NULL, 10);
	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);
	return count;
}
#define show_in_reg(offset)						\
static ssize_t show_in_##offset (struct device *dev, char *buf)		\
{									\
	return show_in(dev, buf, offset);				\
}									\
static ssize_t show_in_##offset##_min (struct device *dev, char *buf)	\
{									\
	return show_in_min(dev, buf, offset);				\
}									\
static ssize_t show_in_##offset##_max (struct device *dev, char *buf)	\
{									\
	return show_in_max(dev, buf, offset);				\
}									\
static ssize_t set_in_##offset##_min (struct device *dev, 		\
	const char *buf, size_t count) 					\
{									\
	return set_in_min(dev, buf, count, offset);			\
}									\
static ssize_t set_in_##offset##_max (struct device *dev, 		\
	const char *buf, size_t count) 					\
{									\
	return set_in_max(dev, buf, count, offset);			\
}									\
static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in_##offset, 	\
		NULL);							\
static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, 		\
		show_in_##offset##_min, set_in_##offset##_min);		\
static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, 		\
		show_in_##offset##_max, set_in_##offset##_max);

show_in_reg(0);
show_in_reg(1);
show_in_reg(2);
show_in_reg(3);
show_in_reg(4);

/* Temps */

static ssize_t show_temp(struct device *dev, char *buf, int nr)
{
	struct lm85_data *data = lm85_update_device(dev);
	return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp[nr]) );
}
static ssize_t show_temp_min(struct device *dev, char *buf, int nr)
{
	struct lm85_data *data = lm85_update_device(dev);
	return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_min[nr]) );
}
static ssize_t set_temp_min(struct device *dev, const char *buf, 
		size_t count, int nr)
{
	struct i2c_client *client = to_i2c_client(dev);
	struct lm85_data *data = i2c_get_clientdata(client);
	int	val;

	down(&data->update_lock);
	val = simple_strtol(buf, NULL, 10);
	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);
	return count;
}
static ssize_t show_temp_max(struct device *dev, char *buf, int nr)
{
	struct lm85_data *data = lm85_update_device(dev);
	return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_max[nr]) );
}
static ssize_t set_temp_max(struct device *dev, const char *buf, 
		size_t count, int nr)
{
	struct i2c_client *client = to_i2c_client(dev);
	struct lm85_data *data = i2c_get_clientdata(client);
	int	val;

	down(&data->update_lock);
	val = simple_strtol(buf, NULL, 10);
	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);
	return count;
}
#define show_temp_reg(offset)						\
static ssize_t show_temp_##offset (struct device *dev, char *buf)	\
{									\
	return show_temp(dev, buf, offset - 1);				\
}									\
static ssize_t show_temp_##offset##_min (struct device *dev, char *buf)	\
{									\
	return show_temp_min(dev, buf, offset - 1);			\
}									\
static ssize_t show_temp_##offset##_max (struct device *dev, char *buf)	\
{									\
	return show_temp_max(dev, buf, offset - 1);			\
}									\
static ssize_t set_temp_##offset##_min (struct device *dev, 		\
	const char *buf, size_t count) 					\
{									\
	return set_temp_min(dev, buf, count, offset - 1);		\
}									\
static ssize_t set_temp_##offset##_max (struct device *dev, 		\
	const char *buf, size_t count) 					\
{									\
	return set_temp_max(dev, buf, count, offset - 1);		\
}									\
static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp_##offset,	\
		NULL);							\
static DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, 		\
		show_temp_##offset##_min, set_temp_##offset##_min);	\
static DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, 		\
		show_temp_##offset##_max, set_temp_##offset##_max);

show_temp_reg(1);
show_temp_reg(2);
show_temp_reg(3);


/* Automatic PWM control */

static ssize_t show_pwm_auto_channels(struct device *dev, char *buf, int nr)
{
	struct lm85_data *data = lm85_update_device(dev);
	return sprintf(buf,"%d\n", ZONE_FROM_REG(data->autofan[nr].config));
}
static ssize_t set_pwm_auto_channels(struct device *dev, const char *buf,
	size_t count, int nr)
{
	struct i2c_client *client = to_i2c_client(dev);
	struct lm85_data *data = i2c_get_clientdata(client);
	int     val;

	down(&data->update_lock);
	val = simple_strtol(buf, NULL, 10);
	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);
	return count;
}
static ssize_t show_pwm_auto_pwm_min(struct device *dev, char *buf, int nr)
{
	struct lm85_data *data = lm85_update_device(dev);
	return sprintf(buf,"%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm));
}
static ssize_t set_pwm_auto_pwm_min(struct device *dev, const char *buf,
	size_t count, int nr)
{
	struct i2c_client *client = to_i2c_client(dev);
	struct lm85_data *data = i2c_get_clientdata(client);
	int     val;

	down(&data->update_lock);
	val = simple_strtol(buf, NULL, 10);
	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);
	return count;
}
static ssize_t show_pwm_auto_pwm_minctl(struct device *dev, char *buf, int nr)
{
	struct lm85_data *data = lm85_update_device(dev);
	return sprintf(buf,"%d\n", data->autofan[nr].min_off);
}
static ssize_t set_pwm_auto_pwm_minctl(struct device *dev, const char *buf,
	size_t count, int nr)
{
	struct i2c_client *client = to_i2c_client(dev);
	struct lm85_data *data = i2c_get_clientdata(client);
	int     val;

	down(&data->update_lock);
	val = simple_strtol(buf, NULL, 10);
	data->autofan[nr].min_off = val;
	lm85_write_value(client, LM85_REG_AFAN_SPIKE1, data->smooth[0]
		| data->syncpwm3
		| (data->autofan[0].min_off ? 0x20 : 0)
		| (data->autofan[1].min_off ? 0x40 : 0)
		| (data->autofan[2].min_off ? 0x80 : 0)
	);
	up(&data->update_lock);
	return count;
}
static ssize_t show_pwm_auto_pwm_freq(struct device *dev, char *buf, int nr)
{
	struct lm85_data *data = lm85_update_device(dev);
	return sprintf(buf,"%d\n", FREQ_FROM_REG(data->autofan[nr].freq));
}
static ssize_t set_pwm_auto_pwm_freq(struct device *dev, const char *buf,
		size_t count, int nr)
{
	struct i2c_client *client = to_i2c_client(dev);