1 // SPDX-License-Identifier: GPL-2.0-or-later
3  *  Copyright (c) 1999-2001 Vojtech Pavlik
8  * NS558 based standard IBM game port driver for Linux
53 	struct gameport *port;  in ns558_isa_probe()  local
59 	if (!request_region(io, 1, "ns558-isa"))  in ns558_isa_probe()
60 		return -EBUSY;  in ns558_isa_probe()
63  * We must not be able to write arbitrary values to the port.  in ns558_isa_probe()
72 		return -ENODEV;  in ns558_isa_probe()
83 		return -ENODEV;  in ns558_isa_probe()
95 			return -ENODEV;  in ns558_isa_probe()
98  * And now find the number of mirrors of the port.  in ns558_isa_probe()
103 		release_region(io & (-1 << (i - 1)), (1 << (i - 1)));  in ns558_isa_probe()
105 		if (!request_region(io & (-1 << i), (1 << i), "ns558-isa"))  in ns558_isa_probe()
108 		outb(0xff, io & (-1 << i));  in ns558_isa_probe()
110 			if (inb(io & (-1 << i)) != inb((io & (-1 << i)) + (1 << i) - 1)) b++;  in ns558_isa_probe()
114 			release_region(io & (-1 << i), (1 << i));  in ns558_isa_probe()
119 	i--;  in ns558_isa_probe()
122 		if (!request_region(io & (-1 << i), (1 << i), "ns558-isa"))  in ns558_isa_probe()
123 			return -EBUSY;  in ns558_isa_probe()
127 	port = gameport_allocate_port();  in ns558_isa_probe()
128 	if (!ns558 || !port) {  in ns558_isa_probe()
130 		release_region(io & (-1 << i), (1 << i));  in ns558_isa_probe()
132 		gameport_free_port(port);  in ns558_isa_probe()
133 		return -ENOMEM;  in ns558_isa_probe()
136 	ns558->io = io;  in ns558_isa_probe()
137 	ns558->size = 1 << i;  in ns558_isa_probe()
138 	ns558->gameport = port;  in ns558_isa_probe()
140 	port->io = io;  in ns558_isa_probe()
141 	gameport_set_name(port, "NS558 ISA Gameport");  in ns558_isa_probe()
142 	gameport_set_phys(port, "isa%04x/gameport0", io & (-1 << i));  in ns558_isa_probe()
144 	gameport_register_port(port);  in ns558_isa_probe()
146 	list_add(&ns558->node, &ns558_list);  in ns558_isa_probe()
154 	{ .id = "@P@0001", .driver_data = 0 }, /* ALS 100 */
155 	{ .id = "@P@0020", .driver_data = 0 }, /* ALS 200 */
156 	{ .id = "@P@1001", .driver_data = 0 }, /* ALS 100+ */
157 	{ .id = "@P@2001", .driver_data = 0 }, /* ALS 120 */
158 	{ .id = "ASB16fd", .driver_data = 0 }, /* AdLib NSC16 */
159 	{ .id = "AZT3001", .driver_data = 0 }, /* AZT1008 */
160 	{ .id = "CDC0001", .driver_data = 0 }, /* Opl3-SAx */
161 	{ .id = "CSC0001", .driver_data = 0 }, /* CS4232 */
162 	{ .id = "CSC000f", .driver_data = 0 }, /* CS4236 */
163 	{ .id = "CSC0101", .driver_data = 0 }, /* CS4327 */
164 	{ .id = "CTL7001", .driver_data = 0 }, /* SB16 */
165 	{ .id = "CTL7002", .driver_data = 0 }, /* AWE64 */
166 	{ .id = "CTL7005", .driver_data = 0 }, /* Vibra16 */
167 	{ .id = "ENS2020", .driver_data = 0 }, /* SoundscapeVIVO */
168 	{ .id = "ESS0001", .driver_data = 0 }, /* ES1869 */
169 	{ .id = "ESS0005", .driver_data = 0 }, /* ES1878 */
170 	{ .id = "ESS6880", .driver_data = 0 }, /* ES688 */
171 	{ .id = "IBM0012", .driver_data = 0 }, /* CS4232 */
172 	{ .id = "OPT0001", .driver_data = 0 }, /* OPTi Audio16 */
173 	{ .id = "YMH0006", .driver_data = 0 }, /* Opl3-SA */
174 	{ .id = "YMH0022", .driver_data = 0 }, /* Opl3-SAx */
175 	{ .id = "PNPb02f", .driver_data = 0 }, /* Generic */
176 	{ .id = "", },
185 	struct gameport *port;  in ns558_pnp_probe()  local
189 		return -ENODEV;  in ns558_pnp_probe()
195 	if (!request_region(ioport, iolen, "ns558-pnp"))  in ns558_pnp_probe()
196 		return -EBUSY;  in ns558_pnp_probe()
199 	port = gameport_allocate_port();  in ns558_pnp_probe()
200 	if (!ns558 || !port) {  in ns558_pnp_probe()
203 		gameport_free_port(port);  in ns558_pnp_probe()
204 		return -ENOMEM;  in ns558_pnp_probe()
207 	ns558->io = ioport;  in ns558_pnp_probe()
208 	ns558->size = iolen;  in ns558_pnp_probe()
209 	ns558->dev = dev;  in ns558_pnp_probe()
210 	ns558->gameport = port;  in ns558_pnp_probe()
212 	gameport_set_name(port, "NS558 PnP Gameport");  in ns558_pnp_probe()
213 	gameport_set_phys(port, "pnp%s/gameport0", dev_name(&dev->dev));  in ns558_pnp_probe()
214 	port->dev.parent = &dev->dev;  in ns558_pnp_probe()
215 	port->io = ioport;  in ns558_pnp_probe()
217 	gameport_register_port(port);  in ns558_pnp_probe()
219 	list_add_tail(&ns558->node, &ns558_list);  in ns558_pnp_probe()
241 	if (error && error != -ENODEV)	/* should be ENOSYS really */  in ns558_init()
246  * enabled get detected as PnP. This may be suboptimal in multi-device  in ns558_init()
253 	return list_empty(&ns558_list) && error ? -ENODEV : 0;  in ns558_init()
261 		gameport_unregister_port(ns558->gameport);  in ns558_exit()
262 		release_region(ns558->io & ~(ns558->size - 1), ns558->size);  in ns558_exit()