151 static int lm78_read_value(struct lm78_data *data, u8 reg);
152 static int lm78_write_value(struct lm78_data *data, u8 reg, u8 value);
154 static void lm78_init_device(struct lm78_data *data);
162 	struct lm78_data *data = lm78_update_device(dev);  in show_in()  local
163 	return sprintf(buf, "%d\n", IN_FROM_REG(data->in[attr->index]));  in show_in()
170 	struct lm78_data *data = lm78_update_device(dev);  in show_in_min()  local
171 	return sprintf(buf, "%d\n", IN_FROM_REG(data->in_min[attr->index]));  in show_in_min()
178 	struct lm78_data *data = lm78_update_device(dev);  in show_in_max()  local
179 	return sprintf(buf, "%d\n", IN_FROM_REG(data->in_max[attr->index]));  in show_in_max()
186 	struct lm78_data *data = dev_get_drvdata(dev);  in set_in_min()  local
195 	mutex_lock(&data->update_lock);  in set_in_min()
196 	data->in_min[nr] = IN_TO_REG(val);  in set_in_min()
197 	lm78_write_value(data, LM78_REG_IN_MIN(nr), data->in_min[nr]);  in set_in_min()
198 	mutex_unlock(&data->update_lock);  in set_in_min()
206 	struct lm78_data *data = dev_get_drvdata(dev);  in set_in_max()  local
215 	mutex_lock(&data->update_lock);  in set_in_max()
216 	data->in_max[nr] = IN_TO_REG(val);  in set_in_max()
217 	lm78_write_value(data, LM78_REG_IN_MAX(nr), data->in_max[nr]);  in set_in_max()
218 	mutex_unlock(&data->update_lock);  in set_in_max()
242 	struct lm78_data *data = lm78_update_device(dev);  in show_temp()  local
243 	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp));  in show_temp()
249 	struct lm78_data *data = lm78_update_device(dev);  in show_temp_over()  local
250 	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_over));  in show_temp_over()
256 	struct lm78_data *data = dev_get_drvdata(dev);  in set_temp_over()  local
264 	mutex_lock(&data->update_lock);  in set_temp_over()
265 	data->temp_over = TEMP_TO_REG(val);  in set_temp_over()
266 	lm78_write_value(data, LM78_REG_TEMP_OVER, data->temp_over);  in set_temp_over()
267 	mutex_unlock(&data->update_lock);  in set_temp_over()
274 	struct lm78_data *data = lm78_update_device(dev);  in show_temp_hyst()  local
275 	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_hyst));  in show_temp_hyst()
281 	struct lm78_data *data = dev_get_drvdata(dev);  in set_temp_hyst()  local
289 	mutex_lock(&data->update_lock);  in set_temp_hyst()
290 	data->temp_hyst = TEMP_TO_REG(val);  in set_temp_hyst()
291 	lm78_write_value(data, LM78_REG_TEMP_HYST, data->temp_hyst);  in set_temp_hyst()
292 	mutex_unlock(&data->update_lock);  in set_temp_hyst()
307 	struct lm78_data *data = lm78_update_device(dev);  in show_fan()  local
309 	return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr],  in show_fan()
310 		DIV_FROM_REG(data->fan_div[nr])));  in show_fan()
317 	struct lm78_data *data = lm78_update_device(dev);  in show_fan_min()  local
319 	return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr],  in show_fan_min()
320 		DIV_FROM_REG(data->fan_div[nr])));  in show_fan_min()
327 	struct lm78_data *data = dev_get_drvdata(dev);  in set_fan_min()  local
336 	mutex_lock(&data->update_lock);  in set_fan_min()
337 	data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));  in set_fan_min()
338 	lm78_write_value(data, LM78_REG_FAN_MIN(nr), data->fan_min[nr]);  in set_fan_min()
339 	mutex_unlock(&data->update_lock);  in set_fan_min()
347 	struct lm78_data *data = lm78_update_device(dev);  in show_fan_div()  local
348 	return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[attr->index]));  in show_fan_div()
361 	struct lm78_data *data = dev_get_drvdata(dev);  in set_fan_div()  local
372 	mutex_lock(&data->update_lock);  in set_fan_div()
373 	min = FAN_FROM_REG(data->fan_min[nr],  in set_fan_div()
374 			   DIV_FROM_REG(data->fan_div[nr]));  in set_fan_div()
378 		data->fan_div[nr] = 0;  in set_fan_div()
381 		data->fan_div[nr] = 1;  in set_fan_div()
384 		data->fan_div[nr] = 2;  in set_fan_div()
387 		data->fan_div[nr] = 3;  in set_fan_div()
393 		mutex_unlock(&data->update_lock);  in set_fan_div()
397 	reg = lm78_read_value(data, LM78_REG_VID_FANDIV);  in set_fan_div()
400 		reg = (reg & 0xcf) | (data->fan_div[nr] << 4);  in set_fan_div()
403 		reg = (reg & 0x3f) | (data->fan_div[nr] << 6);  in set_fan_div()
406 	lm78_write_value(data, LM78_REG_VID_FANDIV, reg);  in set_fan_div()
408 	data->fan_min[nr] =  in set_fan_div()
409 		FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));  in set_fan_div()
410 	lm78_write_value(data, LM78_REG_FAN_MIN(nr), data->fan_min[nr]);  in set_fan_div()
411 	mutex_unlock(&data->update_lock);  in set_fan_div()
437 	struct lm78_data *data = lm78_update_device(dev);  in show_vid()  local
438 	return sprintf(buf, "%d\n", vid_from_reg(data->vid, 82));  in show_vid()
446 	struct lm78_data *data = lm78_update_device(dev);  in show_alarms()  local
447 	return sprintf(buf, "%u\n", data->alarms);  in show_alarms()
454 	struct lm78_data *data = lm78_update_device(dev);  in show_alarm()  local
456 	return sprintf(buf, "%u\n", (data->alarms >> nr) & 1);  in show_alarm()
650 	struct lm78_data *data;  in lm78_i2c_probe()  local
652 	data = devm_kzalloc(dev, sizeof(struct lm78_data), GFP_KERNEL);  in lm78_i2c_probe()
653 	if (!data)  in lm78_i2c_probe()
656 	data->client = client;  in lm78_i2c_probe()
657 	data->type = id->driver_data;  in lm78_i2c_probe()
660 	lm78_init_device(data);  in lm78_i2c_probe()
663 							   data, lm78_groups);  in lm78_i2c_probe()
692 static int lm78_read_value(struct lm78_data *data, u8 reg)  in lm78_read_value()  argument
694 	struct i2c_client *client = data->client;  in lm78_read_value()
699 		mutex_lock(&data->lock);  in lm78_read_value()
700 		outb_p(reg, data->isa_addr + LM78_ADDR_REG_OFFSET);  in lm78_read_value()
701 		res = inb_p(data->isa_addr + LM78_DATA_REG_OFFSET);  in lm78_read_value()
702 		mutex_unlock(&data->lock);  in lm78_read_value()
709 static int lm78_write_value(struct lm78_data *data, u8 reg, u8 value)  in lm78_write_value()  argument
711 	struct i2c_client *client = data->client;  in lm78_write_value()
715 		mutex_lock(&data->lock);  in lm78_write_value()
716 		outb_p(reg, data->isa_addr + LM78_ADDR_REG_OFFSET);  in lm78_write_value()
717 		outb_p(value, data->isa_addr + LM78_DATA_REG_OFFSET);  in lm78_write_value()
718 		mutex_unlock(&data->lock);  in lm78_write_value()
725 static void lm78_init_device(struct lm78_data *data)  in lm78_init_device()  argument
731 	config = lm78_read_value(data, LM78_REG_CONFIG);  in lm78_init_device()
733 		lm78_write_value(data, LM78_REG_CONFIG,  in lm78_init_device()
738 		data->fan_min[i] = lm78_read_value(data,  in lm78_init_device()
742 	mutex_init(&data->update_lock);  in lm78_init_device()
747 	struct lm78_data *data = dev_get_drvdata(dev);  in lm78_update_device()  local
750 	mutex_lock(&data->update_lock);  in lm78_update_device()
752 	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)  in lm78_update_device()
753 	    || !data->valid) {  in lm78_update_device()
758 			data->in[i] =  in lm78_update_device()
759 			    lm78_read_value(data, LM78_REG_IN(i));  in lm78_update_device()
760 			data->in_min[i] =  in lm78_update_device()
761 			    lm78_read_value(data, LM78_REG_IN_MIN(i));  in lm78_update_device()
762 			data->in_max[i] =  in lm78_update_device()
763 			    lm78_read_value(data, LM78_REG_IN_MAX(i));  in lm78_update_device()
766 			data->fan[i] =  in lm78_update_device()
767 			    lm78_read_value(data, LM78_REG_FAN(i));  in lm78_update_device()
768 			data->fan_min[i] =  in lm78_update_device()
769 			    lm78_read_value(data, LM78_REG_FAN_MIN(i));  in lm78_update_device()
771 		data->temp = lm78_read_value(data, LM78_REG_TEMP);  in lm78_update_device()
772 		data->temp_over =  in lm78_update_device()
773 		    lm78_read_value(data, LM78_REG_TEMP_OVER);  in lm78_update_device()
774 		data->temp_hyst =  in lm78_update_device()
775 		    lm78_read_value(data, LM78_REG_TEMP_HYST);  in lm78_update_device()
776 		i = lm78_read_value(data, LM78_REG_VID_FANDIV);  in lm78_update_device()
777 		data->vid = i & 0x0f;  in lm78_update_device()
778 		if (data->type == lm79)  in lm78_update_device()
779 			data->vid |=  in lm78_update_device()
780 			    (lm78_read_value(data, LM78_REG_CHIPID) &  in lm78_update_device()
783 			data->vid |= 0x10;  in lm78_update_device()
784 		data->fan_div[0] = (i >> 4) & 0x03;  in lm78_update_device()
785 		data->fan_div[1] = i >> 6;  in lm78_update_device()
786 		data->alarms = lm78_read_value(data, LM78_REG_ALARM1) +  in lm78_update_device()
787 		    (lm78_read_value(data, LM78_REG_ALARM2) << 8);  in lm78_update_device()
788 		data->last_updated = jiffies;  in lm78_update_device()
789 		data->valid = 1;  in lm78_update_device()
791 		data->fan_div[2] = 1;  in lm78_update_device()
794 	mutex_unlock(&data->update_lock);  in lm78_update_device()
796 	return data;  in lm78_update_device()
804 	struct lm78_data *data;  in lm78_isa_probe()  local
813 	data = devm_kzalloc(dev, sizeof(struct lm78_data), GFP_KERNEL);  in lm78_isa_probe()
814 	if (!data)  in lm78_isa_probe()
817 	mutex_init(&data->lock);  in lm78_isa_probe()
818 	data->isa_addr = res->start;  in lm78_isa_probe()
819 	platform_set_drvdata(pdev, data);  in lm78_isa_probe()
821 	if (lm78_read_value(data, LM78_REG_CHIPID) & 0x80) {  in lm78_isa_probe()
822 		data->type = lm79;  in lm78_isa_probe()
823 		data->name = "lm79";  in lm78_isa_probe()
825 		data->type = lm78;  in lm78_isa_probe()
826 		data->name = "lm78";  in lm78_isa_probe()
830 	lm78_init_device(data);  in lm78_isa_probe()
832 	hwmon_dev = devm_hwmon_device_register_with_groups(dev, data->name,  in lm78_isa_probe()
833 							   data, lm78_groups);  in lm78_isa_probe()