129 static int steam_recv_report(struct steam_device *steam,  in steam_recv_report()  argument
136 	r = steam->hdev->report_enum[HID_FEATURE_REPORT].report_id_hash[0];  in steam_recv_report()
150 	ret = hid_hw_raw_request(steam->hdev, 0x00,  in steam_recv_report()
159 static int steam_send_report(struct steam_device *steam,  in steam_send_report()  argument
167 	r = steam->hdev->report_enum[HID_FEATURE_REPORT].report_id_hash[0];  in steam_send_report()
185 		ret = hid_hw_raw_request(steam->hdev, 0,  in steam_send_report()
195 		hid_err(steam->hdev, "%s: error %d (%*ph)\n", __func__,  in steam_send_report()
200 static inline int steam_send_report_byte(struct steam_device *steam, u8 cmd)  in steam_send_report_byte()  argument
202 	return steam_send_report(steam, &cmd, 1);  in steam_send_report_byte()
205 static int steam_write_registers(struct steam_device *steam,  in steam_write_registers()  argument
214 	va_start(args, steam);  in steam_write_registers()
227 	return steam_send_report(steam, cmd, 2 + cmd[1]);  in steam_write_registers()
230 static int steam_get_serial(struct steam_device *steam)  in steam_get_serial()  argument
240 	ret = steam_send_report(steam, cmd, sizeof(cmd));  in steam_get_serial()
243 	ret = steam_recv_report(steam, reply, sizeof(reply));  in steam_get_serial()
249 	strlcpy(steam->serial_no, reply + 3, sizeof(steam->serial_no));  in steam_get_serial()
258 static inline int steam_request_conn_status(struct steam_device *steam)  in steam_request_conn_status()  argument
260 	return steam_send_report_byte(steam, STEAM_CMD_REQUEST_COMM_STATUS);  in steam_request_conn_status()
263 static void steam_set_lizard_mode(struct steam_device *steam, bool enable)  in steam_set_lizard_mode()  argument
267 		steam_send_report_byte(steam, STEAM_CMD_DEFAULT_MAPPINGS);  in steam_set_lizard_mode()
269 		steam_send_report_byte(steam, STEAM_CMD_DEFAULT_MOUSE);  in steam_set_lizard_mode()
270 		steam_write_registers(steam,  in steam_set_lizard_mode()
275 		steam_send_report_byte(steam, STEAM_CMD_CLEAR_MAPPINGS);  in steam_set_lizard_mode()
276 		steam_write_registers(steam,  in steam_set_lizard_mode()
285 	struct steam_device *steam = input_get_drvdata(dev);  in steam_input_open()  local
287 	mutex_lock(&steam->mutex);  in steam_input_open()
288 	if (!steam->client_opened && lizard_mode)  in steam_input_open()
289 		steam_set_lizard_mode(steam, false);  in steam_input_open()
290 	mutex_unlock(&steam->mutex);  in steam_input_open()
296 	struct steam_device *steam = input_get_drvdata(dev);  in steam_input_close()  local
298 	mutex_lock(&steam->mutex);  in steam_input_close()
299 	if (!steam->client_opened && lizard_mode)  in steam_input_close()
300 		steam_set_lizard_mode(steam, true);  in steam_input_close()
301 	mutex_unlock(&steam->mutex);  in steam_input_close()
315 	struct steam_device *steam = power_supply_get_drvdata(psy);  in steam_battery_get_property()  local
321 	spin_lock_irqsave(&steam->lock, flags);  in steam_battery_get_property()
322 	volts = steam->voltage;  in steam_battery_get_property()
323 	batt = steam->battery_charge;  in steam_battery_get_property()
324 	spin_unlock_irqrestore(&steam->lock, flags);  in steam_battery_get_property()
346 static int steam_battery_register(struct steam_device *steam)  in steam_battery_register()  argument
349 	struct power_supply_config battery_cfg = { .drv_data = steam, };  in steam_battery_register()
353 	steam->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY;  in steam_battery_register()
354 	steam->battery_desc.properties = steam_battery_props;  in steam_battery_register()
355 	steam->battery_desc.num_properties = ARRAY_SIZE(steam_battery_props);  in steam_battery_register()
356 	steam->battery_desc.get_property = steam_battery_get_property;  in steam_battery_register()
357 	steam->battery_desc.name = devm_kasprintf(&steam->hdev->dev,  in steam_battery_register()
359 			steam->serial_no);  in steam_battery_register()
360 	if (!steam->battery_desc.name)  in steam_battery_register()
364 	spin_lock_irqsave(&steam->lock, flags);  in steam_battery_register()
365 	steam->voltage = 3000;  in steam_battery_register()
366 	steam->battery_charge = 100;  in steam_battery_register()
367 	spin_unlock_irqrestore(&steam->lock, flags);  in steam_battery_register()
369 	battery = power_supply_register(&steam->hdev->dev,  in steam_battery_register()
370 			&steam->battery_desc, &battery_cfg);  in steam_battery_register()
373 		hid_err(steam->hdev,  in steam_battery_register()
378 	rcu_assign_pointer(steam->battery, battery);  in steam_battery_register()
379 	power_supply_powers(battery, &steam->hdev->dev);  in steam_battery_register()
383 static int steam_input_register(struct steam_device *steam)  in steam_input_register()  argument
385 	struct hid_device *hdev = steam->hdev;  in steam_input_register()
390 	input = rcu_dereference(steam->input);  in steam_input_register()
401 	input_set_drvdata(input, steam);  in steam_input_register()
406 	input->name = (steam->quirks & STEAM_QUIRK_WIRELESS) ?  in steam_input_register()
410 	input->uniq = steam->serial_no;  in steam_input_register()
463 	rcu_assign_pointer(steam->input, input);  in steam_input_register()
471 static void steam_input_unregister(struct steam_device *steam)  in steam_input_unregister()  argument
475 	input = rcu_dereference(steam->input);  in steam_input_unregister()
479 	RCU_INIT_POINTER(steam->input, NULL);  in steam_input_unregister()
484 static void steam_battery_unregister(struct steam_device *steam)  in steam_battery_unregister()  argument
489 	battery = rcu_dereference(steam->battery);  in steam_battery_unregister()
494 	RCU_INIT_POINTER(steam->battery, NULL);  in steam_battery_unregister()
499 static int steam_register(struct steam_device *steam)  in steam_register()  argument
510 	if (!steam->serial_no[0]) {  in steam_register()
515 		mutex_lock(&steam->mutex);  in steam_register()
516 		if (steam_get_serial(steam) < 0)  in steam_register()
517 			strlcpy(steam->serial_no, "XXXXXXXXXX",  in steam_register()
518 					sizeof(steam->serial_no));  in steam_register()
519 		mutex_unlock(&steam->mutex);  in steam_register()
521 		hid_info(steam->hdev, "Steam Controller '%s' connected",  in steam_register()
522 				steam->serial_no);  in steam_register()
525 		if (steam->quirks & STEAM_QUIRK_WIRELESS)  in steam_register()
526 			steam_battery_register(steam);  in steam_register()
529 		list_add(&steam->list, &steam_devices);  in steam_register()
533 	mutex_lock(&steam->mutex);  in steam_register()
534 	client_opened = steam->client_opened;  in steam_register()
536 		steam_set_lizard_mode(steam, lizard_mode);  in steam_register()
537 	mutex_unlock(&steam->mutex);  in steam_register()
540 		ret = steam_input_register(steam);  in steam_register()
547 static void steam_unregister(struct steam_device *steam)  in steam_unregister()  argument
549 	steam_battery_unregister(steam);  in steam_unregister()
550 	steam_input_unregister(steam);  in steam_unregister()
551 	if (steam->serial_no[0]) {  in steam_unregister()
552 		hid_info(steam->hdev, "Steam Controller '%s' disconnected",  in steam_unregister()
553 				steam->serial_no);  in steam_unregister()
555 		list_del(&steam->list);  in steam_unregister()
557 		steam->serial_no[0] = 0;  in steam_unregister()
563 	struct steam_device *steam = container_of(work, struct steam_device,  in steam_work_connect_cb()  local
569 	spin_lock_irqsave(&steam->lock, flags);  in steam_work_connect_cb()
570 	connected = steam->connected;  in steam_work_connect_cb()
571 	spin_unlock_irqrestore(&steam->lock, flags);  in steam_work_connect_cb()
574 		ret = steam_register(steam);  in steam_work_connect_cb()
576 			hid_err(steam->hdev,  in steam_work_connect_cb()
581 		steam_unregister(steam);  in steam_work_connect_cb()
606 	struct steam_device *steam = hdev->driver_data;  in steam_client_ll_parse()  local
608 	return hid_parse_report(hdev, steam->hdev->dev_rdesc,  in steam_client_ll_parse()
609 			steam->hdev->dev_rsize);  in steam_client_ll_parse()
623 	struct steam_device *steam = hdev->driver_data;  in steam_client_ll_open()  local
625 	mutex_lock(&steam->mutex);  in steam_client_ll_open()
626 	steam->client_opened = true;  in steam_client_ll_open()
627 	mutex_unlock(&steam->mutex);  in steam_client_ll_open()
629 	steam_input_unregister(steam);  in steam_client_ll_open()
636 	struct steam_device *steam = hdev->driver_data;  in steam_client_ll_close()  local
641 	spin_lock_irqsave(&steam->lock, flags);  in steam_client_ll_close()
642 	connected = steam->connected;  in steam_client_ll_close()
643 	spin_unlock_irqrestore(&steam->lock, flags);  in steam_client_ll_close()
645 	mutex_lock(&steam->mutex);  in steam_client_ll_close()
646 	steam->client_opened = false;  in steam_client_ll_close()
648 		steam_set_lizard_mode(steam, lizard_mode);  in steam_client_ll_close()
649 	mutex_unlock(&steam->mutex);  in steam_client_ll_close()
652 		steam_input_register(steam);  in steam_client_ll_close()
660 	struct steam_device *steam = hdev->driver_data;  in steam_client_ll_raw_request()  local
662 	return hid_hw_raw_request(steam->hdev, reportnum, buf, count,  in steam_client_ll_raw_request()
707 	struct steam_device *steam;  in steam_probe()  local
730 	steam = devm_kzalloc(&hdev->dev, sizeof(*steam), GFP_KERNEL);  in steam_probe()
731 	if (!steam) {  in steam_probe()
735 	steam->hdev = hdev;  in steam_probe()
736 	hid_set_drvdata(hdev, steam);  in steam_probe()
737 	spin_lock_init(&steam->lock);  in steam_probe()
738 	mutex_init(&steam->mutex);  in steam_probe()
739 	steam->quirks = id->driver_data;  in steam_probe()
740 	INIT_WORK(&steam->work_connect, steam_work_connect_cb);  in steam_probe()
742 	steam->client_hdev = steam_create_client_hid(hdev);  in steam_probe()
743 	if (IS_ERR(steam->client_hdev)) {  in steam_probe()
744 		ret = PTR_ERR(steam->client_hdev);  in steam_probe()
747 	steam->client_hdev->driver_data = steam;  in steam_probe()
757 	ret = hid_add_device(steam->client_hdev);  in steam_probe()
769 	if (steam->quirks & STEAM_QUIRK_WIRELESS) {  in steam_probe()
771 		steam_request_conn_status(steam);  in steam_probe()
773 		ret = steam_register(steam);  in steam_probe()
789 	hid_destroy_device(steam->client_hdev);  in steam_probe()
791 	cancel_work_sync(&steam->work_connect);  in steam_probe()
800 	struct steam_device *steam = hid_get_drvdata(hdev);  in steam_remove()  local
802 	if (!steam || hdev->group == HID_GROUP_STEAM) {  in steam_remove()
807 	hid_destroy_device(steam->client_hdev);  in steam_remove()
808 	steam->client_opened = false;  in steam_remove()
809 	cancel_work_sync(&steam->work_connect);  in steam_remove()
810 	if (steam->quirks & STEAM_QUIRK_WIRELESS) {  in steam_remove()
815 	steam_unregister(steam);  in steam_remove()
818 static void steam_do_connect_event(struct steam_device *steam, bool connected)  in steam_do_connect_event()  argument
823 	spin_lock_irqsave(&steam->lock, flags);  in steam_do_connect_event()
824 	changed = steam->connected != connected;  in steam_do_connect_event()
825 	steam->connected = connected;  in steam_do_connect_event()
826 	spin_unlock_irqrestore(&steam->lock, flags);  in steam_do_connect_event()
828 	if (changed && schedule_work(&steam->work_connect) == 0)  in steam_do_connect_event()
911 static void steam_do_input_event(struct steam_device *steam,  in steam_do_input_event()  argument
990 static void steam_do_battery_event(struct steam_device *steam,  in steam_do_battery_event()  argument
1000 	battery = rcu_dereference(steam->battery);  in steam_do_battery_event()
1002 		spin_lock_irqsave(&steam->lock, flags);  in steam_do_battery_event()
1003 		steam->voltage = volts;  in steam_do_battery_event()
1004 		steam->battery_charge = batt;  in steam_do_battery_event()
1005 		spin_unlock_irqrestore(&steam->lock, flags);  in steam_do_battery_event()
1015 	struct steam_device *steam = hid_get_drvdata(hdev);  in steam_raw_event()  local
1019 	if (!steam)  in steam_raw_event()
1022 	if (steam->client_opened)  in steam_raw_event()
1023 		hid_input_report(steam->client_hdev, HID_FEATURE_REPORT,  in steam_raw_event()
1046 		if (steam->client_opened)  in steam_raw_event()
1049 		input = rcu_dereference(steam->input);  in steam_raw_event()
1051 			steam_do_input_event(steam, input, data);  in steam_raw_event()
1062 			steam_do_connect_event(steam, false);  in steam_raw_event()
1065 			steam_do_connect_event(steam, true);  in steam_raw_event()
1070 		if (steam->quirks & STEAM_QUIRK_WIRELESS) {  in steam_raw_event()
1072 			battery = rcu_dereference(steam->battery);  in steam_raw_event()
1074 				steam_do_battery_event(steam, battery, data);  in steam_raw_event()
1079 				steam_do_connect_event(steam, true);  in steam_raw_event()
1091 	struct steam_device *steam;  in steam_param_set_lizard_mode()  local
1099 	list_for_each_entry(steam, &steam_devices, list) {  in steam_param_set_lizard_mode()
1100 		mutex_lock(&steam->mutex);  in steam_param_set_lizard_mode()
1101 		if (!steam->client_opened)  in steam_param_set_lizard_mode()
1102 			steam_set_lizard_mode(steam, lizard_mode);  in steam_param_set_lizard_mode()
1103 		mutex_unlock(&steam->mutex);  in steam_param_set_lizard_mode()