250 static int analog_cooked_read(struct analog_port *port)  in analog_cooked_read()  argument
252 	struct gameport *gameport = port->gameport;  in analog_cooked_read()
259 	loopout = (ANALOG_LOOP_TIME * port->loop) / 1000;  in analog_cooked_read()
260 	timeout = ANALOG_MAX_TIME * port->speed;  in analog_cooked_read()
268 	this = port->mask;  in analog_cooked_read()
276 		this = gameport_read(gameport) & port->mask;  in analog_cooked_read()
294 				port->axes[j] = (delta(start, time[i]) << ANALOG_FUZZ_BITS) / port->loop;  in analog_cooked_read()
297 	return -(this != port->mask);  in analog_cooked_read()
300 static int analog_button_read(struct analog_port *port, char saitek, char chf)  in analog_button_read()  argument
304 	int strobe = gameport_time(port->gameport, ANALOG_SAITEK_TIME);  in analog_button_read()
306 	u = gameport_read(port->gameport);  in analog_button_read()
309 		port->buttons = (~u >> 4) & 0xf;  in analog_button_read()
313 	port->buttons = 0;  in analog_button_read()
316 		port->buttons |= 1 << analog_chf[(~u >> 4) & 0xf];  in analog_button_read()
320 		gameport_trigger(port->gameport);  in analog_button_read()
321 		while (((u = gameport_read(port->gameport)) & port->mask) && t) t--;  in analog_button_read()
334 	struct analog_port *port = gameport_get_drvdata(gameport);  in analog_poll()  local
337 	char saitek = !!(port->analog[0].mask & ANALOG_SAITEK);  in analog_poll()
338 	char chf = !!(port->analog[0].mask & ANALOG_ANY_CHF);  in analog_poll()
340 	if (port->cooked) {  in analog_poll()
341 		port->bads -= gameport_cooked_read(port->gameport, port->axes, &port->buttons);  in analog_poll()
343 			port->buttons = port->buttons ? (1 << analog_chf[port->buttons]) : 0;  in analog_poll()
344 		port->reads++;  in analog_poll()
346 		if (!port->axtime--) {  in analog_poll()
347 			port->bads -= analog_cooked_read(port);  in analog_poll()
348 			port->bads -= analog_button_read(port, saitek, chf);  in analog_poll()
349 			port->reads++;  in analog_poll()
350 			port->axtime = ANALOG_AXIS_TIME - 1;  in analog_poll()
353 				analog_button_read(port, saitek, chf);  in analog_poll()
358 		if (port->analog[i].mask)  in analog_poll()
359 			analog_decode(port->analog + i, port->axes, port->initial, port->buttons);  in analog_poll()
368 	struct analog_port *port = input_get_drvdata(dev);  in analog_open()  local
370 	gameport_start_polling(port->gameport);  in analog_open()
380 	struct analog_port *port = input_get_drvdata(dev);  in analog_close()  local
382 	gameport_stop_polling(port->gameport);  in analog_close()
390 static void analog_calibrate_timer(struct analog_port *port)  in analog_calibrate_timer()  argument
392 	struct gameport *gameport = port->gameport;  in analog_calibrate_timer()
398 		port->speed = 1000000;  in analog_calibrate_timer()
410 		port->speed = delta(t1, t2) - delta(t2, t3);  in analog_calibrate_timer()
429         port->loop = tx / 50;  in analog_calibrate_timer()
461 static int analog_init_device(struct analog_port *port, struct analog *analog, int index)  in analog_init_device()  argument
469 		 "%s/input%d", port->gameport->phys, index);  in analog_init_device()
482 	input_dev->dev.parent = &port->gameport->dev;  in analog_init_device()
484 	input_set_drvdata(input_dev, port);  in analog_init_device()
495 			x = port->axes[i];  in analog_init_device()
496 			y = (port->axes[0] + port->axes[1]) >> 1;  in analog_init_device()
497 			z = y - port->axes[i];  in analog_init_device()
506 				if (i == 2) x = port->axes[i];  in analog_init_device()
511 			input_set_abs_params(input_dev, t, v, (x << 1) - v, port->fuzz, w);  in analog_init_device()
538 	analog_decode(analog, port->axes, port->initial, port->buttons);  in analog_init_device()
553 static int analog_init_masks(struct analog_port *port)  in analog_init_masks()  argument
556 	struct analog *analog = port->analog;  in analog_init_masks()
559 	if (!port->mask)  in analog_init_masks()
562 	if ((port->mask & 3) != 3 && port->mask != 0xc) {  in analog_init_masks()
565 			port->mask, port->gameport->phys);  in analog_init_masks()
575 			| port->mask | ((port->mask << 8) & ANALOG_HAT_FCS)  in analog_init_masks()
576 			| ((port->mask << 10) & ANALOG_BTNS_TLR) | ((port->mask << 12) & ANALOG_BTNS_TLR2);  in analog_init_masks()
593 			: (((ANALOG_BTNS_STD | port->mask) & ~analog[0].mask) | ANALOG_GAMEPAD);  in analog_init_masks()
595 	if (port->cooked) {  in analog_init_masks()
597 		for (i = 0; i < 4; i++) max[i] = port->axes[i] << 1;  in analog_init_masks()
605 		gameport_calibrate(port->gameport, port->axes, max);  in analog_init_masks()
609 		port->initial[i] = port->axes[i];  in analog_init_masks()
614 … analog_init_port(struct gameport *gameport, struct gameport_driver *drv, struct analog_port *port)  in analog_init_port()  argument
618 	port->gameport = gameport;  in analog_init_port()
620 	gameport_set_drvdata(gameport, port);  in analog_init_port()
624 		analog_calibrate_timer(port);  in analog_init_port()
629 		port->mask = (gameport_read(gameport) ^ t) & t & 0xf;  in analog_init_port()
630 		port->fuzz = (port->speed * ANALOG_FUZZ_MAGIC) / port->loop / 1000 + ANALOG_FUZZ_BITS;  in analog_init_port()
633 			if (!analog_cooked_read(port))  in analog_init_port()
643 		while ((gameport_read(port->gameport) & port->mask) && (u < t))  in analog_init_port()
648 		while ((gameport_read(port->gameport) & port->mask) && (v < t))  in analog_init_port()
663 			if (!gameport_cooked_read(gameport, port->axes, &port->buttons))  in analog_init_port()
666 			if (port->axes[i] != -1)  in analog_init_port()
667 				port->mask |= 1 << i;  in analog_init_port()
669 		port->fuzz = gameport->fuzz;  in analog_init_port()
670 		port->cooked = 1;  in analog_init_port()
679 	struct analog_port *port;  in analog_connect()  local
683 	if (!(port = kzalloc(sizeof(struct analog_port), GFP_KERNEL)))  in analog_connect()
686 	err = analog_init_port(gameport, drv, port);  in analog_connect()
690 	err = analog_init_masks(port);  in analog_connect()
698 		if (port->analog[i].mask) {  in analog_connect()
699 			err = analog_init_device(port, port->analog + i, i);  in analog_connect()
707 		if (port->analog[i].mask)  in analog_connect()
708 			input_unregister_device(port->analog[i].dev);  in analog_connect()
711 	kfree(port);  in analog_connect()
717 	struct analog_port *port = gameport_get_drvdata(gameport);  in analog_disconnect()  local
721 		if (port->analog[i].mask)  in analog_disconnect()
722 			input_unregister_device(port->analog[i].dev);  in analog_disconnect()
726 		port->bads, port->reads, port->reads ? (port->bads * 100 / port->reads) : 0,  in analog_disconnect()
727 		port->gameport->phys);  in analog_disconnect()
728 	kfree(port);  in analog_disconnect()