152 	void (*update)(struct aem_data *data);
249 static void aem_remove_sensors(struct aem_data *data);
250 static int aem1_find_sensors(struct aem_data *data);
251 static int aem2_find_sensors(struct aem_data *data);
252 static void update_aem1_sensors(struct aem_data *data);
253 static void update_aem2_sensors(struct aem_data *data);
270 static int aem_init_ipmi_data(struct aem_ipmi_data *data, int iface,  in aem_init_ipmi_data()  argument
275 	init_completion(&data->read_complete);  in aem_init_ipmi_data()
276 	data->bmc_device = bmc;  in aem_init_ipmi_data()
279 	data->address.addr_type = IPMI_SYSTEM_INTERFACE_ADDR_TYPE;  in aem_init_ipmi_data()
280 	data->address.channel = IPMI_BMC_CHANNEL;  in aem_init_ipmi_data()
281 	data->address.data[0] = 0;  in aem_init_ipmi_data()
282 	data->interface = iface;  in aem_init_ipmi_data()
285 	data->tx_msgid = 0;  in aem_init_ipmi_data()
286 	data->tx_message.netfn = AEM_NETFN;  in aem_init_ipmi_data()
289 	err = ipmi_create_user(data->interface, &driver_data.ipmi_hndlrs,  in aem_init_ipmi_data()
290 			       data, &data->user);  in aem_init_ipmi_data()
294 			data->interface);  in aem_init_ipmi_data()
302 static int aem_send_message(struct aem_ipmi_data *data)  in aem_send_message()  argument
306 	err = ipmi_validate_addr(&data->address, sizeof(data->address));  in aem_send_message()
310 	data->tx_msgid++;  in aem_send_message()
311 	err = ipmi_request_settime(data->user, &data->address, data->tx_msgid,  in aem_send_message()
312 				   &data->tx_message, data, 0, 0, 0);  in aem_send_message()
318 	dev_err(data->bmc_device, "request_settime=%x\n", err);  in aem_send_message()
321 	dev_err(data->bmc_device, "validate_addr=%x\n", err);  in aem_send_message()
329 	struct aem_ipmi_data *data = user_msg_data;  in aem_msg_handler()  local
331 	if (msg->msgid != data->tx_msgid) {  in aem_msg_handler()
332 		dev_err(data->bmc_device,  in aem_msg_handler()
335 			(int)data->tx_msgid);  in aem_msg_handler()
340 	data->rx_recv_type = msg->recv_type;  in aem_msg_handler()
342 		data->rx_result = msg->msg.data[0];  in aem_msg_handler()
344 		data->rx_result = IPMI_UNKNOWN_ERR_COMPLETION_CODE;  in aem_msg_handler()
348 		if (data->rx_msg_len < rx_len)  in aem_msg_handler()
349 			rx_len = data->rx_msg_len;  in aem_msg_handler()
350 		data->rx_msg_len = rx_len;  in aem_msg_handler()
351 		memcpy(data->rx_msg_data, msg->msg.data + 1, data->rx_msg_len);  in aem_msg_handler()
353 		data->rx_msg_len = 0;  in aem_msg_handler()
356 	complete(&data->read_complete);  in aem_msg_handler()
362 static int aem_read_sensor(struct aem_data *data, u8 elt, u8 reg,  in aem_read_sensor()  argument
368 	struct aem_read_sensor_resp *rs_resp = data->rs_resp;  in aem_read_sensor()
369 	struct aem_ipmi_data *ipmi = &data->ipmi;  in aem_read_sensor()
383 	rs_req.module_handle = data->module_handle;  in aem_read_sensor()
390 	ipmi->tx_message.data = (char *)&rs_req;  in aem_read_sensor()
440 static void update_aem_energy_one(struct aem_data *data, int which)  in update_aem_energy_one()  argument
442 	aem_read_sensor(data, AEM_ENERGY_ELEMENT, which,  in update_aem_energy_one()
443 			&data->energy[which], 8);  in update_aem_energy_one()
446 static void update_aem_energy(struct aem_data *data)  in update_aem_energy()  argument
448 	update_aem_energy_one(data, 0);  in update_aem_energy()
449 	if (data->ver_major < 2)  in update_aem_energy()
451 	update_aem_energy_one(data, 1);  in update_aem_energy()
455 static void update_aem1_sensors(struct aem_data *data)  in update_aem1_sensors()  argument
457 	mutex_lock(&data->lock);  in update_aem1_sensors()
458 	if (time_before(jiffies, data->last_updated + REFRESH_INTERVAL) &&  in update_aem1_sensors()
459 	    data->valid)  in update_aem1_sensors()
462 	update_aem_energy(data);  in update_aem1_sensors()
464 	mutex_unlock(&data->lock);  in update_aem1_sensors()
468 static void update_aem2_sensors(struct aem_data *data)  in update_aem2_sensors()  argument
472 	mutex_lock(&data->lock);  in update_aem2_sensors()
473 	if (time_before(jiffies, data->last_updated + REFRESH_INTERVAL) &&  in update_aem2_sensors()
474 	    data->valid)  in update_aem2_sensors()
477 	update_aem_energy(data);  in update_aem2_sensors()
478 	aem_read_sensor(data, AEM_EXHAUST_ELEMENT, 0, &data->temp[0], 1);  in update_aem2_sensors()
479 	aem_read_sensor(data, AEM_EXHAUST_ELEMENT, 1, &data->temp[1], 1);  in update_aem2_sensors()
482 		aem_read_sensor(data, AEM_POWER_CAP_ELEMENT, i,  in update_aem2_sensors()
483 				&data->pcap[i], 2);  in update_aem2_sensors()
485 	mutex_unlock(&data->lock);  in update_aem2_sensors()
489 static void aem_delete(struct aem_data *data)  in aem_delete()  argument
491 	list_del(&data->list);  in aem_delete()
492 	aem_remove_sensors(data);  in aem_delete()
493 	kfree(data->rs_resp);  in aem_delete()
494 	hwmon_device_unregister(data->hwmon_dev);  in aem_delete()
495 	ipmi_destroy_user(data->ipmi.user);  in aem_delete()
496 	platform_set_drvdata(data->pdev, NULL);  in aem_delete()
497 	platform_device_unregister(data->pdev);  in aem_delete()
498 	ida_simple_remove(&aem_ida, data->id);  in aem_delete()
499 	kfree(data);  in aem_delete()
505 static int aem_find_aem1_count(struct aem_ipmi_data *data)  in aem_find_aem1_count()  argument
515 	data->tx_message.cmd = AEM_FIND_FW_CMD;  in aem_find_aem1_count()
516 	data->tx_message.data = (char *)&ff_req;  in aem_find_aem1_count()
517 	data->tx_message.data_len = sizeof(ff_req);  in aem_find_aem1_count()
519 	data->rx_msg_data = &ff_resp;  in aem_find_aem1_count()
520 	data->rx_msg_len = sizeof(ff_resp);  in aem_find_aem1_count()
522 	aem_send_message(data);  in aem_find_aem1_count()
524 	res = wait_for_completion_timeout(&data->read_complete, IPMI_TIMEOUT);  in aem_find_aem1_count()
528 	if (data->rx_result || data->rx_msg_len != sizeof(ff_resp) ||  in aem_find_aem1_count()
538 	struct aem_data *data;  in aem_init_aem1_inst()  local
542 	data = kzalloc(sizeof(*data), GFP_KERNEL);  in aem_init_aem1_inst()
543 	if (!data)  in aem_init_aem1_inst()
545 	mutex_init(&data->lock);  in aem_init_aem1_inst()
548 	data->ver_major = 1;  in aem_init_aem1_inst()
549 	data->ver_minor = 0;  in aem_init_aem1_inst()
550 	data->module_handle = module_handle;  in aem_init_aem1_inst()
552 		data->power_period[i] = AEM_DEFAULT_POWER_INTERVAL;  in aem_init_aem1_inst()
555 	data->id = ida_simple_get(&aem_ida, 0, 0, GFP_KERNEL);  in aem_init_aem1_inst()
556 	if (data->id < 0)  in aem_init_aem1_inst()
559 	data->pdev = platform_device_alloc(DRVNAME, data->id);  in aem_init_aem1_inst()
560 	if (!data->pdev)  in aem_init_aem1_inst()
562 	data->pdev->dev.driver = &aem_driver.driver;  in aem_init_aem1_inst()
564 	res = platform_device_add(data->pdev);  in aem_init_aem1_inst()
568 	platform_set_drvdata(data->pdev, data);  in aem_init_aem1_inst()
571 	res = aem_init_ipmi_data(&data->ipmi, probe->interface,  in aem_init_aem1_inst()
577 	data->hwmon_dev = hwmon_device_register(&data->pdev->dev);  in aem_init_aem1_inst()
578 	if (IS_ERR(data->hwmon_dev)) {  in aem_init_aem1_inst()
579 		dev_err(&data->pdev->dev,  in aem_init_aem1_inst()
582 		res = PTR_ERR(data->hwmon_dev);  in aem_init_aem1_inst()
586 	data->update = update_aem1_sensors;  in aem_init_aem1_inst()
587 	data->rs_resp = kzalloc(sizeof(*(data->rs_resp)) + 8, GFP_KERNEL);  in aem_init_aem1_inst()
588 	if (!data->rs_resp) {  in aem_init_aem1_inst()
594 	res = aem1_find_sensors(data);  in aem_init_aem1_inst()
599 	list_add_tail(&data->list, &driver_data.aem_devices);  in aem_init_aem1_inst()
601 	dev_info(data->ipmi.bmc_device, "Found AEM v%d.%d at 0x%X\n",  in aem_init_aem1_inst()
602 		 data->ver_major, data->ver_minor,  in aem_init_aem1_inst()
603 		 data->module_handle);  in aem_init_aem1_inst()
607 	kfree(data->rs_resp);  in aem_init_aem1_inst()
609 	hwmon_device_unregister(data->hwmon_dev);  in aem_init_aem1_inst()
611 	ipmi_destroy_user(data->ipmi.user);  in aem_init_aem1_inst()
613 	platform_set_drvdata(data->pdev, NULL);  in aem_init_aem1_inst()
614 	platform_device_unregister(data->pdev);  in aem_init_aem1_inst()
616 	ida_simple_remove(&aem_ida, data->id);  in aem_init_aem1_inst()
618 	kfree(data);  in aem_init_aem1_inst()
642 static int aem_find_aem2(struct aem_ipmi_data *data,  in aem_find_aem2()  argument
653 	data->tx_message.cmd = AEM_FW_INSTANCE_CMD;  in aem_find_aem2()
654 	data->tx_message.data = (char *)&fi_req;  in aem_find_aem2()
655 	data->tx_message.data_len = sizeof(fi_req);  in aem_find_aem2()
657 	data->rx_msg_data = fi_resp;  in aem_find_aem2()
658 	data->rx_msg_len = sizeof(*fi_resp);  in aem_find_aem2()
660 	aem_send_message(data);  in aem_find_aem2()
662 	res = wait_for_completion_timeout(&data->read_complete, IPMI_TIMEOUT);  in aem_find_aem2()
666 	if (data->rx_result || data->rx_msg_len != sizeof(*fi_resp) ||  in aem_find_aem2()
678 	struct aem_data *data;  in aem_init_aem2_inst()  local
682 	data = kzalloc(sizeof(*data), GFP_KERNEL);  in aem_init_aem2_inst()
683 	if (!data)  in aem_init_aem2_inst()
685 	mutex_init(&data->lock);  in aem_init_aem2_inst()
688 	data->ver_major = fi_resp->major;  in aem_init_aem2_inst()
689 	data->ver_minor = fi_resp->minor;  in aem_init_aem2_inst()
690 	data->module_handle = fi_resp->module_handle;  in aem_init_aem2_inst()
692 		data->power_period[i] = AEM_DEFAULT_POWER_INTERVAL;  in aem_init_aem2_inst()
695 	data->id = ida_simple_get(&aem_ida, 0, 0, GFP_KERNEL);  in aem_init_aem2_inst()
696 	if (data->id < 0)  in aem_init_aem2_inst()
699 	data->pdev = platform_device_alloc(DRVNAME, data->id);  in aem_init_aem2_inst()
700 	if (!data->pdev)  in aem_init_aem2_inst()
702 	data->pdev->dev.driver = &aem_driver.driver;  in aem_init_aem2_inst()
704 	res = platform_device_add(data->pdev);  in aem_init_aem2_inst()
708 	platform_set_drvdata(data->pdev, data);  in aem_init_aem2_inst()
711 	res = aem_init_ipmi_data(&data->ipmi, probe->interface,  in aem_init_aem2_inst()
717 	data->hwmon_dev = hwmon_device_register(&data->pdev->dev);  in aem_init_aem2_inst()
718 	if (IS_ERR(data->hwmon_dev)) {  in aem_init_aem2_inst()
719 		dev_err(&data->pdev->dev,  in aem_init_aem2_inst()
722 		res = PTR_ERR(data->hwmon_dev);  in aem_init_aem2_inst()
726 	data->update = update_aem2_sensors;  in aem_init_aem2_inst()
727 	data->rs_resp = kzalloc(sizeof(*(data->rs_resp)) + 8, GFP_KERNEL);  in aem_init_aem2_inst()
728 	if (!data->rs_resp) {  in aem_init_aem2_inst()
734 	res = aem2_find_sensors(data);  in aem_init_aem2_inst()
739 	list_add_tail(&data->list, &driver_data.aem_devices);  in aem_init_aem2_inst()
741 	dev_info(data->ipmi.bmc_device, "Found AEM v%d.%d at 0x%X\n",  in aem_init_aem2_inst()
742 		 data->ver_major, data->ver_minor,  in aem_init_aem2_inst()
743 		 data->module_handle);  in aem_init_aem2_inst()
747 	kfree(data->rs_resp);  in aem_init_aem2_inst()
749 	hwmon_device_unregister(data->hwmon_dev);  in aem_init_aem2_inst()
751 	ipmi_destroy_user(data->ipmi.user);  in aem_init_aem2_inst()
753 	platform_set_drvdata(data->pdev, NULL);  in aem_init_aem2_inst()
754 	platform_device_unregister(data->pdev);  in aem_init_aem2_inst()
756 	ida_simple_remove(&aem_ida, data->id);  in aem_init_aem2_inst()
758 	kfree(data);  in aem_init_aem2_inst()
819 	struct aem_data *data = dev_get_drvdata(dev);  in show_name()  local
821 	return sprintf(buf, "%s%d\n", DRVNAME, data->ver_major);  in show_name()
830 	struct aem_data *data = dev_get_drvdata(dev);  in show_version()  local
832 	return sprintf(buf, "%d.%d\n", data->ver_major, data->ver_minor);  in show_version()
842 	struct aem_data *data = dev_get_drvdata(dev);  in aem_show_power()  local
846 	mutex_lock(&data->lock);  in aem_show_power()
847 	update_aem_energy_one(data, attr->index);  in aem_show_power()
849 	before = data->energy[attr->index];  in aem_show_power()
852 			msecs_to_jiffies(data->power_period[attr->index])  in aem_show_power()
855 		mutex_unlock(&data->lock);  in aem_show_power()
859 	update_aem_energy_one(data, attr->index);  in aem_show_power()
861 	after = data->energy[attr->index];  in aem_show_power()
862 	mutex_unlock(&data->lock);  in aem_show_power()
922 static int aem_register_sensors(struct aem_data *data,  in aem_register_sensors()  argument
926 	struct device *dev = &data->pdev->dev;  in aem_register_sensors()
927 	struct sensor_device_attribute *sensors = data->sensors;  in aem_register_sensors()
972 	aem_remove_sensors(data);  in aem_register_sensors()
1003 static void aem_remove_sensors(struct aem_data *data)  in aem_remove_sensors()  argument
1008 		if (!data->sensors[i].dev_attr.attr.name)  in aem_remove_sensors()
1010 		device_remove_file(&data->pdev->dev,  in aem_remove_sensors()
1011 				   &data->sensors[i].dev_attr);  in aem_remove_sensors()
1014 	device_remove_file(&data->pdev->dev,  in aem_remove_sensors()
1016 	device_remove_file(&data->pdev->dev,  in aem_remove_sensors()
1060 static int aem1_find_sensors(struct aem_data *data)  in aem1_find_sensors()  argument
1062 	return aem_register_sensors(data, aem1_ro_sensors, aem1_rw_sensors);  in aem1_find_sensors()
1066 static int aem2_find_sensors(struct aem_data *data)  in aem2_find_sensors()  argument
1068 	return aem_register_sensors(data, aem2_ro_sensors, aem2_rw_sensors);  in aem2_find_sensors()