139 	void (*update)(struct aem_data *data);
236 static void aem_remove_sensors(struct aem_data *data);
237 static int aem1_find_sensors(struct aem_data *data);
238 static int aem2_find_sensors(struct aem_data *data);
239 static void update_aem1_sensors(struct aem_data *data);
240 static void update_aem2_sensors(struct aem_data *data);
257 static int aem_init_ipmi_data(struct aem_ipmi_data *data, int iface,  in aem_init_ipmi_data()  argument
262 	init_completion(&data->read_complete);  in aem_init_ipmi_data()
263 	data->bmc_device = bmc;  in aem_init_ipmi_data()
266 	data->address.addr_type = IPMI_SYSTEM_INTERFACE_ADDR_TYPE;  in aem_init_ipmi_data()
267 	data->address.channel = IPMI_BMC_CHANNEL;  in aem_init_ipmi_data()
268 	data->address.data[0] = 0;  in aem_init_ipmi_data()
269 	data->interface = iface;  in aem_init_ipmi_data()
272 	data->tx_msgid = 0;  in aem_init_ipmi_data()
273 	data->tx_message.netfn = AEM_NETFN;  in aem_init_ipmi_data()
276 	err = ipmi_create_user(data->interface, &driver_data.ipmi_hndlrs,  in aem_init_ipmi_data()
277 			       data, &data->user);  in aem_init_ipmi_data()
281 			data->interface);  in aem_init_ipmi_data()
289 static int aem_send_message(struct aem_ipmi_data *data)  in aem_send_message()  argument
293 	err = ipmi_validate_addr(&data->address, sizeof(data->address));  in aem_send_message()
297 	data->tx_msgid++;  in aem_send_message()
298 	err = ipmi_request_settime(data->user, &data->address, data->tx_msgid,  in aem_send_message()
299 				   &data->tx_message, data, 0, 0, 0);  in aem_send_message()
305 	dev_err(data->bmc_device, "request_settime=%x\n", err);  in aem_send_message()
308 	dev_err(data->bmc_device, "validate_addr=%x\n", err);  in aem_send_message()
316 	struct aem_ipmi_data *data = user_msg_data;  in aem_msg_handler()  local
318 	if (msg->msgid != data->tx_msgid) {  in aem_msg_handler()
319 		dev_err(data->bmc_device,  in aem_msg_handler()
322 			(int)data->tx_msgid);  in aem_msg_handler()
327 	data->rx_recv_type = msg->recv_type;  in aem_msg_handler()
329 		data->rx_result = msg->msg.data[0];  in aem_msg_handler()
331 		data->rx_result = IPMI_UNKNOWN_ERR_COMPLETION_CODE;  in aem_msg_handler()
335 		if (data->rx_msg_len < rx_len)  in aem_msg_handler()
336 			rx_len = data->rx_msg_len;  in aem_msg_handler()
337 		data->rx_msg_len = rx_len;  in aem_msg_handler()
338 		memcpy(data->rx_msg_data, msg->msg.data + 1, data->rx_msg_len);  in aem_msg_handler()
340 		data->rx_msg_len = 0;  in aem_msg_handler()
343 	complete(&data->read_complete);  in aem_msg_handler()
349 static int aem_read_sensor(struct aem_data *data, u8 elt, u8 reg,  in aem_read_sensor()  argument
355 	struct aem_read_sensor_resp *rs_resp = data->rs_resp;  in aem_read_sensor()
356 	struct aem_ipmi_data *ipmi = &data->ipmi;  in aem_read_sensor()
370 	rs_req.module_handle = data->module_handle;  in aem_read_sensor()
377 	ipmi->tx_message.data = (char *)&rs_req;  in aem_read_sensor()
420 static void update_aem_energy_one(struct aem_data *data, int which)  in update_aem_energy_one()  argument
422 	aem_read_sensor(data, AEM_ENERGY_ELEMENT, which,  in update_aem_energy_one()
423 			&data->energy[which], 8);  in update_aem_energy_one()
426 static void update_aem_energy(struct aem_data *data)  in update_aem_energy()  argument
428 	update_aem_energy_one(data, 0);  in update_aem_energy()
429 	if (data->ver_major < 2)  in update_aem_energy()
431 	update_aem_energy_one(data, 1);  in update_aem_energy()
435 static void update_aem1_sensors(struct aem_data *data)  in update_aem1_sensors()  argument
437 	mutex_lock(&data->lock);  in update_aem1_sensors()
438 	if (time_before(jiffies, data->last_updated + REFRESH_INTERVAL) &&  in update_aem1_sensors()
439 	    data->valid)  in update_aem1_sensors()
442 	update_aem_energy(data);  in update_aem1_sensors()
444 	mutex_unlock(&data->lock);  in update_aem1_sensors()
448 static void update_aem2_sensors(struct aem_data *data)  in update_aem2_sensors()  argument
452 	mutex_lock(&data->lock);  in update_aem2_sensors()
453 	if (time_before(jiffies, data->last_updated + REFRESH_INTERVAL) &&  in update_aem2_sensors()
454 	    data->valid)  in update_aem2_sensors()
457 	update_aem_energy(data);  in update_aem2_sensors()
458 	aem_read_sensor(data, AEM_EXHAUST_ELEMENT, 0, &data->temp[0], 1);  in update_aem2_sensors()
459 	aem_read_sensor(data, AEM_EXHAUST_ELEMENT, 1, &data->temp[1], 1);  in update_aem2_sensors()
462 		aem_read_sensor(data, AEM_POWER_CAP_ELEMENT, i,  in update_aem2_sensors()
463 				&data->pcap[i], 2);  in update_aem2_sensors()
465 	mutex_unlock(&data->lock);  in update_aem2_sensors()
469 static void aem_delete(struct aem_data *data)  in aem_delete()  argument
471 	list_del(&data->list);  in aem_delete()
472 	aem_remove_sensors(data);  in aem_delete()
473 	kfree(data->rs_resp);  in aem_delete()
474 	hwmon_device_unregister(data->hwmon_dev);  in aem_delete()
475 	ipmi_destroy_user(data->ipmi.user);  in aem_delete()
476 	platform_set_drvdata(data->pdev, NULL);  in aem_delete()
477 	platform_device_unregister(data->pdev);  in aem_delete()
478 	ida_free(&aem_ida, data->id);  in aem_delete()
479 	kfree(data);  in aem_delete()
485 static int aem_find_aem1_count(struct aem_ipmi_data *data)  in aem_find_aem1_count()  argument
494 	data->tx_message.cmd = AEM_FIND_FW_CMD;  in aem_find_aem1_count()
495 	data->tx_message.data = (char *)&ff_req;  in aem_find_aem1_count()
496 	data->tx_message.data_len = sizeof(ff_req);  in aem_find_aem1_count()
498 	data->rx_msg_data = &ff_resp;  in aem_find_aem1_count()
499 	data->rx_msg_len = sizeof(ff_resp);  in aem_find_aem1_count()
501 	aem_send_message(data);  in aem_find_aem1_count()
503 	if (!wait_for_completion_timeout(&data->read_complete, IPMI_TIMEOUT))  in aem_find_aem1_count()
506 	if (data->rx_result || data->rx_msg_len != sizeof(ff_resp) ||  in aem_find_aem1_count()
516 	struct aem_data *data;  in aem_init_aem1_inst()  local
520 	data = kzalloc_obj(*data);  in aem_init_aem1_inst()
521 	if (!data)  in aem_init_aem1_inst()
523 	mutex_init(&data->lock);  in aem_init_aem1_inst()
526 	data->ver_major = 1;  in aem_init_aem1_inst()
527 	data->ver_minor = 0;  in aem_init_aem1_inst()
528 	data->module_handle = module_handle;  in aem_init_aem1_inst()
530 		data->power_period[i] = AEM_DEFAULT_POWER_INTERVAL;  in aem_init_aem1_inst()
533 	data->id = ida_alloc(&aem_ida, GFP_KERNEL);  in aem_init_aem1_inst()
534 	if (data->id < 0)  in aem_init_aem1_inst()
537 	data->pdev = platform_device_alloc(DRVNAME, data->id);  in aem_init_aem1_inst()
538 	if (!data->pdev)  in aem_init_aem1_inst()
540 	data->pdev->dev.driver = &aem_driver.driver;  in aem_init_aem1_inst()
542 	res = platform_device_add(data->pdev);  in aem_init_aem1_inst()
546 	platform_set_drvdata(data->pdev, data);  in aem_init_aem1_inst()
549 	res = aem_init_ipmi_data(&data->ipmi, probe->interface,  in aem_init_aem1_inst()
555 	data->hwmon_dev = hwmon_device_register(&data->pdev->dev);  in aem_init_aem1_inst()
556 	if (IS_ERR(data->hwmon_dev)) {  in aem_init_aem1_inst()
557 		dev_err(&data->pdev->dev,  in aem_init_aem1_inst()
560 		res = PTR_ERR(data->hwmon_dev);  in aem_init_aem1_inst()
564 	data->update = update_aem1_sensors;  in aem_init_aem1_inst()
565 	data->rs_resp = kzalloc(sizeof(*(data->rs_resp)) + 8, GFP_KERNEL);  in aem_init_aem1_inst()
566 	if (!data->rs_resp) {  in aem_init_aem1_inst()
572 	res = aem1_find_sensors(data);  in aem_init_aem1_inst()
577 	list_add_tail(&data->list, &driver_data.aem_devices);  in aem_init_aem1_inst()
579 	dev_info(data->ipmi.bmc_device, "Found AEM v%d.%d at 0x%X\n",  in aem_init_aem1_inst()
580 		 data->ver_major, data->ver_minor,  in aem_init_aem1_inst()
581 		 data->module_handle);  in aem_init_aem1_inst()
585 	kfree(data->rs_resp);  in aem_init_aem1_inst()
587 	hwmon_device_unregister(data->hwmon_dev);  in aem_init_aem1_inst()
589 	ipmi_destroy_user(data->ipmi.user);  in aem_init_aem1_inst()
591 	platform_set_drvdata(data->pdev, NULL);  in aem_init_aem1_inst()
592 	platform_device_del(data->pdev);  in aem_init_aem1_inst()
594 	platform_device_put(data->pdev);  in aem_init_aem1_inst()
596 	ida_free(&aem_ida, data->id);  in aem_init_aem1_inst()
598 	kfree(data);  in aem_init_aem1_inst()
622 static int aem_find_aem2(struct aem_ipmi_data *data,  in aem_find_aem2()  argument
632 	data->tx_message.cmd = AEM_FW_INSTANCE_CMD;  in aem_find_aem2()
633 	data->tx_message.data = (char *)&fi_req;  in aem_find_aem2()
634 	data->tx_message.data_len = sizeof(fi_req);  in aem_find_aem2()
636 	data->rx_msg_data = fi_resp;  in aem_find_aem2()
637 	data->rx_msg_len = sizeof(*fi_resp);  in aem_find_aem2()
639 	aem_send_message(data);  in aem_find_aem2()
641 	if (!wait_for_completion_timeout(&data->read_complete, IPMI_TIMEOUT))  in aem_find_aem2()
644 	if (data->rx_result || data->rx_msg_len != sizeof(*fi_resp) ||  in aem_find_aem2()
656 	struct aem_data *data;  in aem_init_aem2_inst()  local
660 	data = kzalloc_obj(*data);  in aem_init_aem2_inst()
661 	if (!data)  in aem_init_aem2_inst()
663 	mutex_init(&data->lock);  in aem_init_aem2_inst()
666 	data->ver_major = fi_resp->major;  in aem_init_aem2_inst()
667 	data->ver_minor = fi_resp->minor;  in aem_init_aem2_inst()
668 	data->module_handle = fi_resp->module_handle;  in aem_init_aem2_inst()
670 		data->power_period[i] = AEM_DEFAULT_POWER_INTERVAL;  in aem_init_aem2_inst()
673 	data->id = ida_alloc(&aem_ida, GFP_KERNEL);  in aem_init_aem2_inst()
674 	if (data->id < 0)  in aem_init_aem2_inst()
677 	data->pdev = platform_device_alloc(DRVNAME, data->id);  in aem_init_aem2_inst()
678 	if (!data->pdev)  in aem_init_aem2_inst()
680 	data->pdev->dev.driver = &aem_driver.driver;  in aem_init_aem2_inst()
682 	res = platform_device_add(data->pdev);  in aem_init_aem2_inst()
686 	platform_set_drvdata(data->pdev, data);  in aem_init_aem2_inst()
689 	res = aem_init_ipmi_data(&data->ipmi, probe->interface,  in aem_init_aem2_inst()
695 	data->hwmon_dev = hwmon_device_register(&data->pdev->dev);  in aem_init_aem2_inst()
696 	if (IS_ERR(data->hwmon_dev)) {  in aem_init_aem2_inst()
697 		dev_err(&data->pdev->dev,  in aem_init_aem2_inst()
700 		res = PTR_ERR(data->hwmon_dev);  in aem_init_aem2_inst()
704 	data->update = update_aem2_sensors;  in aem_init_aem2_inst()
705 	data->rs_resp = kzalloc(sizeof(*(data->rs_resp)) + 8, GFP_KERNEL);  in aem_init_aem2_inst()
706 	if (!data->rs_resp) {  in aem_init_aem2_inst()
712 	res = aem2_find_sensors(data);  in aem_init_aem2_inst()
717 	list_add_tail(&data->list, &driver_data.aem_devices);  in aem_init_aem2_inst()
719 	dev_info(data->ipmi.bmc_device, "Found AEM v%d.%d at 0x%X\n",  in aem_init_aem2_inst()
720 		 data->ver_major, data->ver_minor,  in aem_init_aem2_inst()
721 		 data->module_handle);  in aem_init_aem2_inst()
725 	kfree(data->rs_resp);  in aem_init_aem2_inst()
727 	hwmon_device_unregister(data->hwmon_dev);  in aem_init_aem2_inst()
729 	ipmi_destroy_user(data->ipmi.user);  in aem_init_aem2_inst()
731 	platform_set_drvdata(data->pdev, NULL);  in aem_init_aem2_inst()
732 	platform_device_del(data->pdev);  in aem_init_aem2_inst()
734 	platform_device_put(data->pdev);  in aem_init_aem2_inst()
736 	ida_free(&aem_ida, data->id);  in aem_init_aem2_inst()
738 	kfree(data);  in aem_init_aem2_inst()
799 	struct aem_data *data = dev_get_drvdata(dev);  in name_show()  local
801 	return sprintf(buf, "%s%d\n", DRVNAME, data->ver_major);  in name_show()
809 	struct aem_data *data = dev_get_drvdata(dev);  in version_show()  local
811 	return sprintf(buf, "%d.%d\n", data->ver_major, data->ver_minor);  in version_show()
821 	struct aem_data *data = dev_get_drvdata(dev);  in aem_show_power()  local
825 	mutex_lock(&data->lock);  in aem_show_power()
826 	update_aem_energy_one(data, attr->index);  in aem_show_power()
828 	before = data->energy[attr->index];  in aem_show_power()
831 			msecs_to_jiffies(data->power_period[attr->index])  in aem_show_power()
834 		mutex_unlock(&data->lock);  in aem_show_power()
838 	update_aem_energy_one(data, attr->index);  in aem_show_power()
840 	after = data->energy[attr->index];  in aem_show_power()
841 	mutex_unlock(&data->lock);  in aem_show_power()
901 static int aem_register_sensors(struct aem_data *data,  in aem_register_sensors()  argument
905 	struct device *dev = &data->pdev->dev;  in aem_register_sensors()
906 	struct sensor_device_attribute *sensors = data->sensors;  in aem_register_sensors()
951 	aem_remove_sensors(data);  in aem_register_sensors()
982 static void aem_remove_sensors(struct aem_data *data)  in aem_remove_sensors()  argument
987 		if (!data->sensors[i].dev_attr.attr.name)  in aem_remove_sensors()
989 		device_remove_file(&data->pdev->dev,  in aem_remove_sensors()
990 				   &data->sensors[i].dev_attr);  in aem_remove_sensors()
993 	device_remove_file(&data->pdev->dev,  in aem_remove_sensors()
995 	device_remove_file(&data->pdev->dev,  in aem_remove_sensors()
1039 static int aem1_find_sensors(struct aem_data *data)  in aem1_find_sensors()  argument
1041 	return aem_register_sensors(data, aem1_ro_sensors, aem1_rw_sensors);  in aem1_find_sensors()
1045 static int aem2_find_sensors(struct aem_data *data)  in aem2_find_sensors()  argument
1047 	return aem_register_sensors(data, aem2_ro_sensors, aem2_rw_sensors);  in aem2_find_sensors()