559 static int logi_dj_recv_query_paired_devices(struct dj_receiver_dev *djrcv_dev);
580 	struct dj_receiver_dev *djrcv_dev;  in dj_find_receiver_dev()  local
590 	list_for_each_entry(djrcv_dev, &dj_hdev_list, list) {  in dj_find_receiver_dev()
591 		if (djrcv_dev->mouse &&  in dj_find_receiver_dev()
592 		    hid_compare_device_paths(hdev, djrcv_dev->mouse, sep)) {  in dj_find_receiver_dev()
593 			kref_get(&djrcv_dev->kref);  in dj_find_receiver_dev()
594 			return djrcv_dev;  in dj_find_receiver_dev()
596 		if (djrcv_dev->keyboard &&  in dj_find_receiver_dev()
597 		    hid_compare_device_paths(hdev, djrcv_dev->keyboard, sep)) {  in dj_find_receiver_dev()
598 			kref_get(&djrcv_dev->kref);  in dj_find_receiver_dev()
599 			return djrcv_dev;  in dj_find_receiver_dev()
601 		if (djrcv_dev->hidpp &&  in dj_find_receiver_dev()
602 		    hid_compare_device_paths(hdev, djrcv_dev->hidpp, sep)) {  in dj_find_receiver_dev()
603 			kref_get(&djrcv_dev->kref);  in dj_find_receiver_dev()
604 			return djrcv_dev;  in dj_find_receiver_dev()
613 	struct dj_receiver_dev *djrcv_dev = container_of(kref, struct dj_receiver_dev, kref);  in dj_release_receiver_dev()  local
615 	list_del(&djrcv_dev->list);  in dj_release_receiver_dev()
616 	kfifo_free(&djrcv_dev->notif_fifo);  in dj_release_receiver_dev()
617 	kfree(djrcv_dev);  in dj_release_receiver_dev()
622 	struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);  in dj_put_receiver_dev()  local
626 	if (djrcv_dev->mouse == hdev)  in dj_put_receiver_dev()
627 		djrcv_dev->mouse = NULL;  in dj_put_receiver_dev()
628 	if (djrcv_dev->keyboard == hdev)  in dj_put_receiver_dev()
629 		djrcv_dev->keyboard = NULL;  in dj_put_receiver_dev()
630 	if (djrcv_dev->hidpp == hdev)  in dj_put_receiver_dev()
631 		djrcv_dev->hidpp = NULL;  in dj_put_receiver_dev()
633 	kref_put(&djrcv_dev->kref, dj_release_receiver_dev);  in dj_put_receiver_dev()
643 	struct dj_receiver_dev *djrcv_dev;  in dj_get_receiver_dev()  local
647 	djrcv_dev = dj_find_receiver_dev(hdev, type);  in dj_get_receiver_dev()
648 	if (!djrcv_dev) {  in dj_get_receiver_dev()
649 		djrcv_dev = kzalloc(sizeof(*djrcv_dev), GFP_KERNEL);  in dj_get_receiver_dev()
650 		if (!djrcv_dev)  in dj_get_receiver_dev()
653 		INIT_WORK(&djrcv_dev->work, delayedwork_callback);  in dj_get_receiver_dev()
654 		spin_lock_init(&djrcv_dev->lock);  in dj_get_receiver_dev()
655 		if (kfifo_alloc(&djrcv_dev->notif_fifo,  in dj_get_receiver_dev()
658 			kfree(djrcv_dev);  in dj_get_receiver_dev()
659 			djrcv_dev = NULL;  in dj_get_receiver_dev()
662 		kref_init(&djrcv_dev->kref);  in dj_get_receiver_dev()
663 		list_add_tail(&djrcv_dev->list, &dj_hdev_list);  in dj_get_receiver_dev()
664 		djrcv_dev->last_query = jiffies;  in dj_get_receiver_dev()
665 		djrcv_dev->type = type;  in dj_get_receiver_dev()
669 		djrcv_dev->keyboard = hdev;  in dj_get_receiver_dev()
671 		djrcv_dev->mouse = hdev;  in dj_get_receiver_dev()
673 		djrcv_dev->hidpp = hdev;  in dj_get_receiver_dev()
675 	hid_set_drvdata(hdev, djrcv_dev);  in dj_get_receiver_dev()
678 	return djrcv_dev;  in dj_get_receiver_dev()
681 static void logi_dj_recv_destroy_djhid_device(struct dj_receiver_dev *djrcv_dev,  in logi_dj_recv_destroy_djhid_device()  argument
688 	spin_lock_irqsave(&djrcv_dev->lock, flags);  in logi_dj_recv_destroy_djhid_device()
689 	dj_dev = djrcv_dev->paired_dj_devices[workitem->device_index];  in logi_dj_recv_destroy_djhid_device()
690 	djrcv_dev->paired_dj_devices[workitem->device_index] = NULL;  in logi_dj_recv_destroy_djhid_device()
691 	spin_unlock_irqrestore(&djrcv_dev->lock, flags);  in logi_dj_recv_destroy_djhid_device()
697 		hid_err(djrcv_dev->hidpp, "%s: can't destroy a NULL device\n",  in logi_dj_recv_destroy_djhid_device()
702 static void logi_dj_recv_add_djhid_device(struct dj_receiver_dev *djrcv_dev,  in logi_dj_recv_add_djhid_device()  argument
706 	struct hid_device *djrcv_hdev = djrcv_dev->hidpp;  in logi_dj_recv_add_djhid_device()
718 	if (djrcv_dev->paired_dj_devices[device_index]) {  in logi_dj_recv_add_djhid_device()
758 	if (djrcv_dev->type == recvr_type_27mhz)  in logi_dj_recv_add_djhid_device()
776 	dj_dev->dj_receiver_dev = djrcv_dev;  in logi_dj_recv_add_djhid_device()
780 	spin_lock_irqsave(&djrcv_dev->lock, flags);  in logi_dj_recv_add_djhid_device()
781 	djrcv_dev->paired_dj_devices[device_index] = dj_dev;  in logi_dj_recv_add_djhid_device()
782 	spin_unlock_irqrestore(&djrcv_dev->lock, flags);  in logi_dj_recv_add_djhid_device()
792 	spin_lock_irqsave(&djrcv_dev->lock, flags);  in logi_dj_recv_add_djhid_device()
793 	djrcv_dev->paired_dj_devices[device_index] = NULL;  in logi_dj_recv_add_djhid_device()
794 	spin_unlock_irqrestore(&djrcv_dev->lock, flags);  in logi_dj_recv_add_djhid_device()
802 	struct dj_receiver_dev *djrcv_dev =  in delayedwork_callback()  local
812 	spin_lock_irqsave(&djrcv_dev->lock, flags);  in delayedwork_callback()
818 	if (!djrcv_dev->ready) {  in delayedwork_callback()
821 		spin_unlock_irqrestore(&djrcv_dev->lock, flags);  in delayedwork_callback()
825 	count = kfifo_out(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem));  in delayedwork_callback()
828 		spin_unlock_irqrestore(&djrcv_dev->lock, flags);  in delayedwork_callback()
832 	if (!kfifo_is_empty(&djrcv_dev->notif_fifo))  in delayedwork_callback()
833 		schedule_work(&djrcv_dev->work);  in delayedwork_callback()
835 	spin_unlock_irqrestore(&djrcv_dev->lock, flags);  in delayedwork_callback()
839 		logi_dj_recv_add_djhid_device(djrcv_dev, &workitem);  in delayedwork_callback()
842 		logi_dj_recv_destroy_djhid_device(djrcv_dev, &workitem);  in delayedwork_callback()
845 		retval = logi_dj_recv_query_paired_devices(djrcv_dev);  in delayedwork_callback()
847 			hid_err(djrcv_dev->hidpp, "%s: logi_dj_recv_query_paired_devices error: %d\n",  in delayedwork_callback()
869 static void logi_dj_recv_queue_unknown_work(struct dj_receiver_dev *djrcv_dev)  in logi_dj_recv_queue_unknown_work()  argument
874 	if (time_before(jiffies, djrcv_dev->last_query + HZ / 2))  in logi_dj_recv_queue_unknown_work()
877 	kfifo_in(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem));  in logi_dj_recv_queue_unknown_work()
878 	schedule_work(&djrcv_dev->work);  in logi_dj_recv_queue_unknown_work()
881 static void logi_dj_recv_queue_notification(struct dj_receiver_dev *djrcv_dev,  in logi_dj_recv_queue_notification()  argument
911 		logi_dj_recv_queue_unknown_work(djrcv_dev);  in logi_dj_recv_queue_notification()
915 	kfifo_in(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem));  in logi_dj_recv_queue_notification()
916 	schedule_work(&djrcv_dev->work);  in logi_dj_recv_queue_notification()
943 	struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);  in logi_hidpp_dev_conn_notif_equad()  local
959 				if (djrcv_dev->type == recvr_type_dinovo)  in logi_hidpp_dev_conn_notif_equad()
1008 	struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);  in logi_hidpp_recv_queue_notif()  local
1094 	kfifo_in(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem));  in logi_hidpp_recv_queue_notif()
1095 	schedule_work(&djrcv_dev->work);  in logi_hidpp_recv_queue_notif()
1098 static void logi_dj_recv_forward_null_report(struct dj_receiver_dev *djrcv_dev,  in logi_dj_recv_forward_null_report()  argument
1106 	djdev = djrcv_dev->paired_dj_devices[dj_report->device_index];  in logi_dj_recv_forward_null_report()
1124 static void logi_dj_recv_forward_dj(struct dj_receiver_dev *djrcv_dev,  in logi_dj_recv_forward_dj()  argument
1130 	dj_device = djrcv_dev->paired_dj_devices[dj_report->device_index];  in logi_dj_recv_forward_dj()
1156 	struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);  in logi_dj_recv_forward_input_report()  local
1167 	spin_lock_irqsave(&djrcv_dev->lock, flags);  in logi_dj_recv_forward_input_report()
1169 		dj_dev = djrcv_dev->paired_dj_devices[i];  in logi_dj_recv_forward_input_report()
1172 			spin_unlock_irqrestore(&djrcv_dev->lock, flags);  in logi_dj_recv_forward_input_report()
1177 	logi_dj_recv_queue_unknown_work(djrcv_dev);  in logi_dj_recv_forward_input_report()
1178 	spin_unlock_irqrestore(&djrcv_dev->lock, flags);  in logi_dj_recv_forward_input_report()
1183 static int logi_dj_recv_send_report(struct dj_receiver_dev *djrcv_dev,  in logi_dj_recv_send_report()  argument
1186 	struct hid_device *hdev = djrcv_dev->hidpp;  in logi_dj_recv_send_report()
1208 static int logi_dj_recv_query_hidpp_devices(struct dj_receiver_dev *djrcv_dev)  in logi_dj_recv_query_hidpp_devices()  argument
1225 	retval = hid_hw_raw_request(djrcv_dev->hidpp,  in logi_dj_recv_query_hidpp_devices()
1235 static int logi_dj_recv_query_paired_devices(struct dj_receiver_dev *djrcv_dev)  in logi_dj_recv_query_paired_devices()  argument
1240 	djrcv_dev->last_query = jiffies;  in logi_dj_recv_query_paired_devices()
1242 	if (djrcv_dev->type != recvr_type_dj)  in logi_dj_recv_query_paired_devices()
1243 		return logi_dj_recv_query_hidpp_devices(djrcv_dev);  in logi_dj_recv_query_paired_devices()
1251 	retval = logi_dj_recv_send_report(djrcv_dev, dj_report);  in logi_dj_recv_query_paired_devices()
1257 static int logi_dj_recv_switch_to_dj_mode(struct dj_receiver_dev *djrcv_dev,  in logi_dj_recv_switch_to_dj_mode()  argument
1260 	struct hid_device *hdev = djrcv_dev->hidpp;  in logi_dj_recv_switch_to_dj_mode()
1269 	if (djrcv_dev->type == recvr_type_dj) {  in logi_dj_recv_switch_to_dj_mode()
1277 		retval = logi_dj_recv_send_report(djrcv_dev, dj_report);  in logi_dj_recv_switch_to_dj_mode()
1352 	struct dj_receiver_dev *djrcv_dev = djdev->dj_receiver_dev;  in logi_dj_ll_raw_request()  local
1369 		return hid_hw_raw_request(djrcv_dev->hidpp, reportnum, buf,  in logi_dj_ll_raw_request()
1376 	if (djrcv_dev->type != recvr_type_dj && count >= 2) {  in logi_dj_ll_raw_request()
1377 		if (!djrcv_dev->keyboard) {  in logi_dj_ll_raw_request()
1382 		return hid_hw_raw_request(djrcv_dev->keyboard, 0, buf, count,  in logi_dj_ll_raw_request()
1397 	ret = hid_hw_raw_request(djrcv_dev->hidpp, out_buf[0], out_buf,  in logi_dj_ll_raw_request()
1507 	struct dj_receiver_dev *djrcv_dev = djdev->dj_receiver_dev;  in logi_dj_ll_may_wakeup()  local
1509 	return hid_hw_may_wakeup(djrcv_dev->hidpp);  in logi_dj_ll_may_wakeup()
1526 	struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);  in logi_dj_dj_event()  local
1561 	spin_lock_irqsave(&djrcv_dev->lock, flags);  in logi_dj_dj_event()
1563 	if (!djrcv_dev->paired_dj_devices[dj_report->device_index]) {  in logi_dj_dj_event()
1565 		logi_dj_recv_queue_notification(djrcv_dev, dj_report);  in logi_dj_dj_event()
1574 		logi_dj_recv_queue_notification(djrcv_dev, dj_report);  in logi_dj_dj_event()
1579 			logi_dj_recv_forward_null_report(djrcv_dev, dj_report);  in logi_dj_dj_event()
1583 		logi_dj_recv_forward_dj(djrcv_dev, dj_report);  in logi_dj_dj_event()
1587 	spin_unlock_irqrestore(&djrcv_dev->lock, flags);  in logi_dj_dj_event()
1596 	struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);  in logi_dj_hidpp_event()  local
1633 	spin_lock_irqsave(&djrcv_dev->lock, flags);  in logi_dj_hidpp_event()
1635 	dj_dev = djrcv_dev->paired_dj_devices[device_index];  in logi_dj_hidpp_event()
1641 	if (djrcv_dev->type == recvr_type_27mhz && dj_dev &&  in logi_dj_hidpp_event()
1650 		kfifo_in(&djrcv_dev->notif_fifo, &workitem, sizeof(workitem));  in logi_dj_hidpp_event()
1661 			logi_dj_recv_queue_unknown_work(djrcv_dev);  in logi_dj_hidpp_event()
1664 	spin_unlock_irqrestore(&djrcv_dev->lock, flags);  in logi_dj_hidpp_event()
1673 	struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);  in logi_dj_raw_event()  local
1676 	if (!djrcv_dev)  in logi_dj_raw_event()
1681 		if (djrcv_dev->unnumbered_application == HID_GD_KEYBOARD) {  in logi_dj_raw_event()
1700 		if (djrcv_dev->unnumbered_application == HID_GD_MOUSE &&  in logi_dj_raw_event()
1751 	struct dj_receiver_dev *djrcv_dev;  in logi_dj_probe()  local
1818 	djrcv_dev = dj_get_receiver_dev(hdev, id->driver_data,  in logi_dj_probe()
1820 	if (!djrcv_dev) {  in logi_dj_probe()
1826 		djrcv_dev->unnumbered_application = rep->application;  in logi_dj_probe()
1837 		retval = logi_dj_recv_switch_to_dj_mode(djrcv_dev, 0);  in logi_dj_probe()
1857 		spin_lock_irqsave(&djrcv_dev->lock, flags);  in logi_dj_probe()
1858 		djrcv_dev->ready = true;  in logi_dj_probe()
1859 		spin_unlock_irqrestore(&djrcv_dev->lock, flags);  in logi_dj_probe()
1860 		retval = logi_dj_recv_query_paired_devices(djrcv_dev);  in logi_dj_probe()
1886 	struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);  in logi_dj_reset_resume()  local
1888 	if (!djrcv_dev || djrcv_dev->hidpp != hdev)  in logi_dj_reset_resume()
1891 	retval = logi_dj_recv_switch_to_dj_mode(djrcv_dev, 0);  in logi_dj_reset_resume()
1903 	struct dj_receiver_dev *djrcv_dev = hid_get_drvdata(hdev);  in logi_dj_remove()  local
1910 	if (!djrcv_dev)  in logi_dj_remove()
1917 	spin_lock_irqsave(&djrcv_dev->lock, flags);  in logi_dj_remove()
1918 	djrcv_dev->ready = false;  in logi_dj_remove()
1919 	spin_unlock_irqrestore(&djrcv_dev->lock, flags);  in logi_dj_remove()
1921 	cancel_work_sync(&djrcv_dev->work);  in logi_dj_remove()
1934 		spin_lock_irqsave(&djrcv_dev->lock, flags);  in logi_dj_remove()
1935 		dj_dev = djrcv_dev->paired_dj_devices[i];  in logi_dj_remove()
1936 		djrcv_dev->paired_dj_devices[i] = NULL;  in logi_dj_remove()
1937 		spin_unlock_irqrestore(&djrcv_dev->lock, flags);  in logi_dj_remove()