128 static int steam_recv_report(struct steam_device *steam,  in steam_recv_report()  argument
135 	r = steam->hdev->report_enum[HID_FEATURE_REPORT].report_id_hash[0];  in steam_recv_report()
149 	ret = hid_hw_raw_request(steam->hdev, 0x00,  in steam_recv_report()
158 static int steam_send_report(struct steam_device *steam,  in steam_send_report()  argument
166 	r = steam->hdev->report_enum[HID_FEATURE_REPORT].report_id_hash[0];  in steam_send_report()
184 		ret = hid_hw_raw_request(steam->hdev, 0,  in steam_send_report()
194 		hid_err(steam->hdev, "%s: error %d (%*ph)\n", __func__,  in steam_send_report()
199 static inline int steam_send_report_byte(struct steam_device *steam, u8 cmd)  in steam_send_report_byte()  argument
201 	return steam_send_report(steam, &cmd, 1);  in steam_send_report_byte()
204 static int steam_write_registers(struct steam_device *steam,  in steam_write_registers()  argument
213 	va_start(args, steam);  in steam_write_registers()
226 	return steam_send_report(steam, cmd, 2 + cmd[1]);  in steam_write_registers()
229 static int steam_get_serial(struct steam_device *steam)  in steam_get_serial()  argument
239 	ret = steam_send_report(steam, cmd, sizeof(cmd));  in steam_get_serial()
242 	ret = steam_recv_report(steam, reply, sizeof(reply));  in steam_get_serial()
248 	strlcpy(steam->serial_no, reply + 3, sizeof(steam->serial_no));  in steam_get_serial()
257 static inline int steam_request_conn_status(struct steam_device *steam)  in steam_request_conn_status()  argument
259 	return steam_send_report_byte(steam, STEAM_CMD_REQUEST_COMM_STATUS);  in steam_request_conn_status()
262 static void steam_set_lizard_mode(struct steam_device *steam, bool enable)  in steam_set_lizard_mode()  argument
266 		steam_send_report_byte(steam, STEAM_CMD_DEFAULT_MAPPINGS);  in steam_set_lizard_mode()
268 		steam_send_report_byte(steam, STEAM_CMD_DEFAULT_MOUSE);  in steam_set_lizard_mode()
269 		steam_write_registers(steam,  in steam_set_lizard_mode()
274 		steam_send_report_byte(steam, STEAM_CMD_CLEAR_MAPPINGS);  in steam_set_lizard_mode()
275 		steam_write_registers(steam,  in steam_set_lizard_mode()
282 static void steam_update_lizard_mode(struct steam_device *steam)  in steam_update_lizard_mode()  argument
284 	mutex_lock(&steam->mutex);  in steam_update_lizard_mode()
285 	if (!steam->client_opened) {  in steam_update_lizard_mode()
286 		if (steam->input_opened)  in steam_update_lizard_mode()
287 			steam_set_lizard_mode(steam, false);  in steam_update_lizard_mode()
289 			steam_set_lizard_mode(steam, lizard_mode);  in steam_update_lizard_mode()
291 	mutex_unlock(&steam->mutex);  in steam_update_lizard_mode()
296 	struct steam_device *steam = input_get_drvdata(dev);  in steam_input_open()  local
299 	ret = hid_hw_open(steam->hdev);  in steam_input_open()
303 	mutex_lock(&steam->mutex);  in steam_input_open()
304 	steam->input_opened = true;  in steam_input_open()
305 	if (!steam->client_opened && lizard_mode)  in steam_input_open()
306 		steam_set_lizard_mode(steam, false);  in steam_input_open()
307 	mutex_unlock(&steam->mutex);  in steam_input_open()
313 	struct steam_device *steam = input_get_drvdata(dev);  in steam_input_close()  local
315 	mutex_lock(&steam->mutex);  in steam_input_close()
316 	steam->input_opened = false;  in steam_input_close()
317 	if (!steam->client_opened && lizard_mode)  in steam_input_close()
318 		steam_set_lizard_mode(steam, true);  in steam_input_close()
319 	mutex_unlock(&steam->mutex);  in steam_input_close()
321 	hid_hw_close(steam->hdev);  in steam_input_close()
335 	struct steam_device *steam = power_supply_get_drvdata(psy);  in steam_battery_get_property()  local
341 	spin_lock_irqsave(&steam->lock, flags);  in steam_battery_get_property()
342 	volts = steam->voltage;  in steam_battery_get_property()
343 	batt = steam->battery_charge;  in steam_battery_get_property()
344 	spin_unlock_irqrestore(&steam->lock, flags);  in steam_battery_get_property()
366 static int steam_battery_register(struct steam_device *steam)  in steam_battery_register()  argument
369 	struct power_supply_config battery_cfg = { .drv_data = steam, };  in steam_battery_register()
373 	steam->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY;  in steam_battery_register()
374 	steam->battery_desc.properties = steam_battery_props;  in steam_battery_register()
375 	steam->battery_desc.num_properties = ARRAY_SIZE(steam_battery_props);  in steam_battery_register()
376 	steam->battery_desc.get_property = steam_battery_get_property;  in steam_battery_register()
377 	steam->battery_desc.name = devm_kasprintf(&steam->hdev->dev,  in steam_battery_register()
379 			steam->serial_no);  in steam_battery_register()
380 	if (!steam->battery_desc.name)  in steam_battery_register()
384 	spin_lock_irqsave(&steam->lock, flags);  in steam_battery_register()
385 	steam->voltage = 3000;  in steam_battery_register()
386 	steam->battery_charge = 100;  in steam_battery_register()
387 	spin_unlock_irqrestore(&steam->lock, flags);  in steam_battery_register()
389 	battery = power_supply_register(&steam->hdev->dev,  in steam_battery_register()
390 			&steam->battery_desc, &battery_cfg);  in steam_battery_register()
393 		hid_err(steam->hdev,  in steam_battery_register()
398 	rcu_assign_pointer(steam->battery, battery);  in steam_battery_register()
399 	power_supply_powers(battery, &steam->hdev->dev);  in steam_battery_register()
403 static int steam_register(struct steam_device *steam)  in steam_register()  argument
405 	struct hid_device *hdev = steam->hdev;  in steam_register()
410 	input = rcu_dereference(steam->input);  in steam_register()
421 	if (steam_get_serial(steam) < 0)  in steam_register()
422 		strlcpy(steam->serial_no, "XXXXXXXXXX",  in steam_register()
423 				sizeof(steam->serial_no));  in steam_register()
426 			steam->serial_no);  in steam_register()
432 	input_set_drvdata(input, steam);  in steam_register()
437 	input->name = (steam->quirks & STEAM_QUIRK_WIRELESS) ?  in steam_register()
441 	input->uniq = steam->serial_no;  in steam_register()
494 	rcu_assign_pointer(steam->input, input);  in steam_register()
497 	if (steam->quirks & STEAM_QUIRK_WIRELESS)  in steam_register()
498 		steam_battery_register(steam);  in steam_register()
507 static void steam_unregister(struct steam_device *steam)  in steam_unregister()  argument
513 	input = rcu_dereference(steam->input);  in steam_unregister()
514 	battery = rcu_dereference(steam->battery);  in steam_unregister()
518 		RCU_INIT_POINTER(steam->battery, NULL);  in steam_unregister()
523 		RCU_INIT_POINTER(steam->input, NULL);  in steam_unregister()
525 		hid_info(steam->hdev, "Steam Controller '%s' disconnected",  in steam_unregister()
526 				steam->serial_no);  in steam_unregister()
533 	struct steam_device *steam = container_of(work, struct steam_device,  in steam_work_connect_cb()  local
539 	spin_lock_irqsave(&steam->lock, flags);  in steam_work_connect_cb()
540 	connected = steam->connected;  in steam_work_connect_cb()
541 	spin_unlock_irqrestore(&steam->lock, flags);  in steam_work_connect_cb()
544 		ret = steam_register(steam);  in steam_work_connect_cb()
546 			hid_err(steam->hdev,  in steam_work_connect_cb()
551 		steam_unregister(steam);  in steam_work_connect_cb()
576 	struct steam_device *steam = hdev->driver_data;  in steam_client_ll_parse()  local
578 	return hid_parse_report(hdev, steam->hdev->dev_rdesc,  in steam_client_ll_parse()
579 			steam->hdev->dev_rsize);  in steam_client_ll_parse()
593 	struct steam_device *steam = hdev->driver_data;  in steam_client_ll_open()  local
596 	ret = hid_hw_open(steam->hdev);  in steam_client_ll_open()
600 	mutex_lock(&steam->mutex);  in steam_client_ll_open()
601 	steam->client_opened = true;  in steam_client_ll_open()
602 	mutex_unlock(&steam->mutex);  in steam_client_ll_open()
608 	struct steam_device *steam = hdev->driver_data;  in steam_client_ll_close()  local
610 	mutex_lock(&steam->mutex);  in steam_client_ll_close()
611 	steam->client_opened = false;  in steam_client_ll_close()
612 	if (steam->input_opened)  in steam_client_ll_close()
613 		steam_set_lizard_mode(steam, false);  in steam_client_ll_close()
615 		steam_set_lizard_mode(steam, lizard_mode);  in steam_client_ll_close()
616 	mutex_unlock(&steam->mutex);  in steam_client_ll_close()
618 	hid_hw_close(steam->hdev);  in steam_client_ll_close()
626 	struct steam_device *steam = hdev->driver_data;  in steam_client_ll_raw_request()  local
628 	return hid_hw_raw_request(steam->hdev, reportnum, buf, count,  in steam_client_ll_raw_request()
673 	struct steam_device *steam;  in steam_probe()  local
696 	steam = devm_kzalloc(&hdev->dev, sizeof(*steam), GFP_KERNEL);  in steam_probe()
697 	if (!steam) {  in steam_probe()
701 	steam->hdev = hdev;  in steam_probe()
702 	hid_set_drvdata(hdev, steam);  in steam_probe()
703 	spin_lock_init(&steam->lock);  in steam_probe()
704 	mutex_init(&steam->mutex);  in steam_probe()
705 	steam->quirks = id->driver_data;  in steam_probe()
706 	INIT_WORK(&steam->work_connect, steam_work_connect_cb);  in steam_probe()
708 	steam->client_hdev = steam_create_client_hid(hdev);  in steam_probe()
709 	if (IS_ERR(steam->client_hdev)) {  in steam_probe()
710 		ret = PTR_ERR(steam->client_hdev);  in steam_probe()
713 	steam->client_hdev->driver_data = steam;  in steam_probe()
723 	ret = hid_add_device(steam->client_hdev);  in steam_probe()
727 	if (steam->quirks & STEAM_QUIRK_WIRELESS) {  in steam_probe()
736 		steam_request_conn_status(steam);  in steam_probe()
738 		ret = steam_register(steam);  in steam_probe()
748 	steam_update_lizard_mode(steam);  in steam_probe()
749 	list_add(&steam->list, &steam_devices);  in steam_probe()
759 	hid_destroy_device(steam->client_hdev);  in steam_probe()
761 	cancel_work_sync(&steam->work_connect);  in steam_probe()
770 	struct steam_device *steam = hid_get_drvdata(hdev);  in steam_remove()  local
772 	if (!steam || hdev->group == HID_GROUP_STEAM) {  in steam_remove()
778 	list_del(&steam->list);  in steam_remove()
781 	hid_destroy_device(steam->client_hdev);  in steam_remove()
782 	steam->client_opened = false;  in steam_remove()
783 	cancel_work_sync(&steam->work_connect);  in steam_remove()
784 	if (steam->quirks & STEAM_QUIRK_WIRELESS) {  in steam_remove()
789 	steam_unregister(steam);  in steam_remove()
792 static void steam_do_connect_event(struct steam_device *steam, bool connected)  in steam_do_connect_event()  argument
796 	spin_lock_irqsave(&steam->lock, flags);  in steam_do_connect_event()
797 	steam->connected = connected;  in steam_do_connect_event()
798 	spin_unlock_irqrestore(&steam->lock, flags);  in steam_do_connect_event()
800 	if (schedule_work(&steam->work_connect) == 0)  in steam_do_connect_event()
883 static void steam_do_input_event(struct steam_device *steam,  in steam_do_input_event()  argument
962 static void steam_do_battery_event(struct steam_device *steam,  in steam_do_battery_event()  argument
972 	battery = rcu_dereference(steam->battery);  in steam_do_battery_event()
974 		spin_lock_irqsave(&steam->lock, flags);  in steam_do_battery_event()
975 		steam->voltage = volts;  in steam_do_battery_event()
976 		steam->battery_charge = batt;  in steam_do_battery_event()
977 		spin_unlock_irqrestore(&steam->lock, flags);  in steam_do_battery_event()
987 	struct steam_device *steam = hid_get_drvdata(hdev);  in steam_raw_event()  local
991 	if (!steam)  in steam_raw_event()
994 	if (steam->client_opened)  in steam_raw_event()
995 		hid_input_report(steam->client_hdev, HID_FEATURE_REPORT,  in steam_raw_event()
1018 		if (steam->client_opened)  in steam_raw_event()
1021 		input = rcu_dereference(steam->input);  in steam_raw_event()
1023 			steam_do_input_event(steam, input, data);  in steam_raw_event()
1027 			steam_do_connect_event(steam, true);  in steam_raw_event()
1039 			steam_do_connect_event(steam, false);  in steam_raw_event()
1042 			steam_do_connect_event(steam, true);  in steam_raw_event()
1047 		if (steam->quirks & STEAM_QUIRK_WIRELESS) {  in steam_raw_event()
1049 			battery = rcu_dereference(steam->battery);  in steam_raw_event()
1051 				steam_do_battery_event(steam, battery, data);  in steam_raw_event()
1056 				steam_do_connect_event(steam, true);  in steam_raw_event()
1068 	struct steam_device *steam;  in steam_param_set_lizard_mode()  local
1076 	list_for_each_entry(steam, &steam_devices, list) {  in steam_param_set_lizard_mode()
1077 		steam_update_lizard_mode(steam);  in steam_param_set_lizard_mode()