1 // SPDX-License-Identifier: GPL-2.0-or-later
3  *  Copyright (c) 1998-2001 Vojtech Pavlik
27 #define GF2K_START		400	/* The time we wait for the first bit [400 us] */
28 #define GF2K_STROBE		40	/* The time we wait for the first bit [40 us] */
45 static char gf2k_length[] = { 40, 40, 40, 40, 40, 40, 40, 40 };
46 … char gf2k_hat_to_axis[][2] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1,…
48 static char *gf2k_names[] = {"", "Genius G-09D", "Genius F-30D", "Genius F-30", "Genius MaxFighter …
49 				"Genius F-30-5", "Genius Flight2000 F-23", "Genius F-31"};
96 		t--; u = v;  in gf2k_read_packet()
126 		while ((gameport_read(gameport) & 1) && t) t--;  in gf2k_trigger_seq()
137  * Parameter 'pos' is bit number inside packet where to start at, 'num' is number
152 	data &= (1 << num) - 1;  in gf2k_get_bits()
160 	struct input_dev *dev = gf2k->dev;  in gf2k_read()
163 	for (i = 0; i < 4 && i < gf2k_axes[gf2k->id]; i++)  in gf2k_read()
166 	for (i = 0; i < 2 && i < gf2k_axes[gf2k->id] - 4; i++)  in gf2k_read()
169 	t = GB(40,4,0);  in gf2k_read()
171 	for (i = 0; i < gf2k_hats[gf2k->id]; i++)  in gf2k_read()
176 	for (i = 0; i < gf2k_joys[gf2k->id]; i++)  in gf2k_read()
179 	for (i = 0; i < gf2k_pads[gf2k->id]; i++)  in gf2k_read()
194 	gf2k->reads++;  in gf2k_poll()
196 	if (gf2k_read_packet(gf2k->gameport, gf2k_length[gf2k->id], data) < gf2k_length[gf2k->id])  in gf2k_poll()
197 		gf2k->bads++;  in gf2k_poll()
206 	gameport_start_polling(gf2k->gameport);  in gf2k_open()
214 	gameport_stop_polling(gf2k->gameport);  in gf2k_close()
231 		err = -ENOMEM;  in gf2k_connect()
235 	gf2k->gameport = gameport;  in gf2k_connect()
236 	gf2k->dev = input_dev;  in gf2k_connect()
253 		err = -ENODEV;  in gf2k_connect()
257 	if (!(gf2k->id = GB(7,2,0) | GB(3,3,2) | GB(0,3,5))) {  in gf2k_connect()
258 		err = -ENODEV;  in gf2k_connect()
263 	if ((gf2k->id != (GB(19,2,0) | GB(15,3,2) | GB(12,3,5))) &&  in gf2k_connect()
264 	    (gf2k->id != (GB(31,2,0) | GB(27,3,2) | GB(24,3,5)))) {  in gf2k_connect()
265 		err = -ENODEV;  in gf2k_connect()
269 	gf2k->id = 6;  in gf2k_connect()
272 	if (gf2k->id > GF2K_ID_MAX || !gf2k_axes[gf2k->id]) {  in gf2k_connect()
274 			gameport->phys, gf2k->id, gf2k->id > GF2K_ID_MAX ? "Unknown" : gf2k_names[gf2k->id]);  in gf2k_connect()
275 		err = -ENODEV;  in gf2k_connect()
282 	snprintf(gf2k->phys, sizeof(gf2k->phys), "%s/input0", gameport->phys);  in gf2k_connect()
284 	gf2k->length = gf2k_lens[gf2k->id];  in gf2k_connect()
286 	input_dev->name = gf2k_names[gf2k->id];  in gf2k_connect()
287 	input_dev->phys = gf2k->phys;  in gf2k_connect()
288 	input_dev->id.bustype = BUS_GAMEPORT;  in gf2k_connect()
289 	input_dev->id.vendor = GAMEPORT_ID_VENDOR_GENIUS;  in gf2k_connect()
290 	input_dev->id.product = gf2k->id;  in gf2k_connect()
291 	input_dev->id.version = 0x0100;  in gf2k_connect()
292 	input_dev->dev.parent = &gameport->dev;  in gf2k_connect()
296 	input_dev->open = gf2k_open;  in gf2k_connect()
297 	input_dev->close = gf2k_close;  in gf2k_connect()
299 	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);  in gf2k_connect()
301 	for (i = 0; i < gf2k_axes[gf2k->id]; i++)  in gf2k_connect()
302 		set_bit(gf2k_abs[i], input_dev->absbit);  in gf2k_connect()
304 	for (i = 0; i < gf2k_hats[gf2k->id]; i++)  in gf2k_connect()
305 		input_set_abs_params(input_dev, ABS_HAT0X + i, -1, 1, 0, 0);  in gf2k_connect()
307 	for (i = 0; i < gf2k_joys[gf2k->id]; i++)  in gf2k_connect()
308 		set_bit(gf2k_btn_joy[i], input_dev->keybit);  in gf2k_connect()
310 	for (i = 0; i < gf2k_pads[gf2k->id]; i++)  in gf2k_connect()
311 		set_bit(gf2k_btn_pad[i], input_dev->keybit);  in gf2k_connect()
313 	gf2k_read_packet(gameport, gf2k->length, data);  in gf2k_connect()
316 	for (i = 0; i < gf2k_axes[gf2k->id]; i++) {  in gf2k_connect()
324 				     32, max - 32, 8, flat);  in gf2k_connect()
327 	err = input_register_device(gf2k->dev);  in gf2k_connect()
344 	input_unregister_device(gf2k->dev);  in gf2k_disconnect()