112 static int register_slot(int i, struct grip_mp *grip);
357 static int get_and_decode_packet(struct grip_mp *grip, int flags)  in get_and_decode_packet()  argument
367 	flags = multiport_io(grip->gameport, flags, 0, &packet);  in get_and_decode_packet()
368 	grip->reads++;  in get_and_decode_packet()
374 		grip->bads++;  in get_and_decode_packet()
384 	port = grip->port[slot];  in get_and_decode_packet()
423 			if (register_slot(slot, grip)) {  in get_and_decode_packet()
448 static int slots_valid(struct grip_mp *grip)  in slots_valid()  argument
452 	flags = get_and_decode_packet(grip, 0);  in slots_valid()
457 		if (grip->port[slot]->mode == GRIP_MODE_RESET)  in slots_valid()
459 		if (grip->port[slot]->mode != GRIP_MODE_NONE)  in slots_valid()
476 static int multiport_init(struct grip_mp *grip)  in multiport_init()  argument
481 	dig_mode = dig_mode_start(grip->gameport, &packet);  in multiport_init()
483 		dig_mode = dig_mode_start(grip->gameport, &packet);  in multiport_init()
496 		if (slots_valid(grip)) {  in multiport_init()
509 static void report_slot(struct grip_mp *grip, int slot)  in report_slot()  argument
511 	struct grip_port *port = grip->port[slot];  in report_slot()
537 	struct grip_mp *grip = gameport_get_drvdata(gameport);  in grip_poll()  local
543 			flags = get_and_decode_packet(grip, flags);  in grip_poll()
552 		if (grip->port[i]->dirty)  in grip_poll()
553 			report_slot(grip, i);  in grip_poll()
562 	struct grip_mp *grip = input_get_drvdata(dev);  in grip_open()  local
564 	gameport_start_polling(grip->gameport);  in grip_open()
574 	struct grip_mp *grip = input_get_drvdata(dev);  in grip_close()  local
576 	gameport_stop_polling(grip->gameport);  in grip_close()
583 static int register_slot(int slot, struct grip_mp *grip)  in register_slot()  argument
585 	struct grip_port *port = grip->port[slot];  in register_slot()
599 	input_dev->dev.parent = &grip->gameport->dev;  in register_slot()
601 	input_set_drvdata(input_dev, grip);  in register_slot()
624 		report_slot(grip, slot);  in register_slot()
631 	struct grip_mp *grip;  in grip_connect()  local
634 	if (!(grip = kzalloc(sizeof(struct grip_mp), GFP_KERNEL)))  in grip_connect()
637 	grip->gameport = gameport;  in grip_connect()
639 	gameport_set_drvdata(gameport, grip);  in grip_connect()
648 	if (!multiport_init(grip)) {  in grip_connect()
653 	if (!grip->port[0]->mode && !grip->port[1]->mode && !grip->port[2]->mode && !grip->port[3]->mode) {  in grip_connect()
663 	kfree(grip);  in grip_connect()
669 	struct grip_mp *grip = gameport_get_drvdata(gameport);  in grip_disconnect()  local
673 		if (grip->port[i]->registered)  in grip_disconnect()
674 			input_unregister_device(grip->port[i]->dev);  in grip_disconnect()
677 	kfree(grip);  in grip_disconnect()