Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * NES, SNES, N64, MultiSystem, PSX gamepad driver for Linux | |
3 | * | |
ab0c3443 DT |
4 | * Copyright (c) 1999-2004 Vojtech Pavlik <vojtech@suse.cz> |
5 | * Copyright (c) 2004 Peter Nelson <rufus-kernel@hackish.org> | |
1da177e4 LT |
6 | * |
7 | * Based on the work of: | |
ab0c3443 DT |
8 | * Andree Borrmann John Dahlstrom |
9 | * David Kuder Nathan Hand | |
b157d55e | 10 | * Raphael Assenat |
1da177e4 LT |
11 | */ |
12 | ||
13 | /* | |
14 | * This program is free software; you can redistribute it and/or modify | |
15 | * it under the terms of the GNU General Public License as published by | |
16 | * the Free Software Foundation; either version 2 of the License, or | |
17 | * (at your option) any later version. | |
18 | * | |
19 | * This program is distributed in the hope that it will be useful, | |
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
22 | * GNU General Public License for more details. | |
23 | * | |
24 | * You should have received a copy of the GNU General Public License | |
25 | * along with this program; if not, write to the Free Software | |
26 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
27 | * | |
28 | * Should you need to contact me, the author, you can do so either by | |
29 | * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail: | |
30 | * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic | |
31 | */ | |
32 | ||
33 | #include <linux/kernel.h> | |
34 | #include <linux/delay.h> | |
35 | #include <linux/module.h> | |
36 | #include <linux/moduleparam.h> | |
37 | #include <linux/init.h> | |
38 | #include <linux/parport.h> | |
39 | #include <linux/input.h> | |
72ba9f0c | 40 | #include <linux/mutex.h> |
1da177e4 LT |
41 | |
42 | MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>"); | |
43 | MODULE_DESCRIPTION("NES, SNES, N64, MultiSystem, PSX gamepad driver"); | |
44 | MODULE_LICENSE("GPL"); | |
45 | ||
17dd3f0f DT |
46 | #define GC_MAX_PORTS 3 |
47 | #define GC_MAX_DEVICES 5 | |
1da177e4 | 48 | |
17dd3f0f DT |
49 | struct gc_config { |
50 | int args[GC_MAX_DEVICES + 1]; | |
51 | int nargs; | |
52 | }; | |
53 | ||
54 | static struct gc_config gc[GC_MAX_PORTS] __initdata; | |
1da177e4 | 55 | |
17dd3f0f DT |
56 | module_param_array_named(map, gc[0].args, int, &gc[0].nargs, 0); |
57 | MODULE_PARM_DESC(map, "Describes first set of devices (<parport#>,<pad1>,<pad2>,..<pad5>)"); | |
58 | module_param_array_named(map2, gc[1].args, int, &gc[1].nargs, 0); | |
59 | MODULE_PARM_DESC(map2, "Describes second set of devices"); | |
60 | module_param_array_named(map3, gc[2].args, int, &gc[2].nargs, 0); | |
61 | MODULE_PARM_DESC(map3, "Describes third set of devices"); | |
1da177e4 LT |
62 | |
63 | __obsolete_setup("gc="); | |
64 | __obsolete_setup("gc_2="); | |
65 | __obsolete_setup("gc_3="); | |
66 | ||
67 | /* see also gs_psx_delay parameter in PSX support section */ | |
68 | ||
69 | #define GC_SNES 1 | |
70 | #define GC_NES 2 | |
71 | #define GC_NES4 3 | |
72 | #define GC_MULTI 4 | |
73 | #define GC_MULTI2 5 | |
74 | #define GC_N64 6 | |
75 | #define GC_PSX 7 | |
76 | #define GC_DDR 8 | |
b157d55e | 77 | #define GC_SNESMOUSE 9 |
1da177e4 | 78 | |
b157d55e | 79 | #define GC_MAX 9 |
1da177e4 LT |
80 | |
81 | #define GC_REFRESH_TIME HZ/100 | |
82 | ||
83 | struct gc { | |
84 | struct pardevice *pd; | |
17dd3f0f | 85 | struct input_dev *dev[GC_MAX_DEVICES]; |
1da177e4 LT |
86 | struct timer_list timer; |
87 | unsigned char pads[GC_MAX + 1]; | |
88 | int used; | |
72ba9f0c | 89 | struct mutex mutex; |
17dd3f0f | 90 | char phys[GC_MAX_DEVICES][32]; |
1da177e4 LT |
91 | }; |
92 | ||
93 | static struct gc *gc_base[3]; | |
94 | ||
95 | static int gc_status_bit[] = { 0x40, 0x80, 0x20, 0x10, 0x08 }; | |
96 | ||
97 | static char *gc_names[] = { NULL, "SNES pad", "NES pad", "NES FourPort", "Multisystem joystick", | |
98 | "Multisystem 2-button joystick", "N64 controller", "PSX controller", | |
b157d55e | 99 | "PSX DDR controller", "SNES mouse" }; |
1da177e4 LT |
100 | /* |
101 | * N64 support. | |
102 | */ | |
103 | ||
104 | static unsigned char gc_n64_bytes[] = { 0, 1, 13, 15, 14, 12, 10, 11, 2, 3 }; | |
105 | static short gc_n64_btn[] = { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_TL, BTN_TR, BTN_TRIGGER, BTN_START }; | |
106 | ||
107 | #define GC_N64_LENGTH 32 /* N64 bit length, not including stop bit */ | |
108 | #define GC_N64_REQUEST_LENGTH 37 /* transmit request sequence is 9 bits long */ | |
109 | #define GC_N64_DELAY 133 /* delay between transmit request, and response ready (us) */ | |
110 | #define GC_N64_REQUEST 0x1dd1111111ULL /* the request data command (encoded for 000000011) */ | |
111 | #define GC_N64_DWS 3 /* delay between write segments (required for sound playback because of ISA DMA) */ | |
112 | /* GC_N64_DWS > 24 is known to fail */ | |
113 | #define GC_N64_POWER_W 0xe2 /* power during write (transmit request) */ | |
114 | #define GC_N64_POWER_R 0xfd /* power during read */ | |
115 | #define GC_N64_OUT 0x1d /* output bits to the 4 pads */ | |
116 | /* Reading the main axes of any N64 pad is known to fail if the corresponding bit */ | |
117 | /* in GC_N64_OUT is pulled low on the output port (by any routine) for more */ | |
118 | /* than 123 us */ | |
119 | #define GC_N64_CLOCK 0x02 /* clock bits for read */ | |
120 | ||
121 | /* | |
122 | * gc_n64_read_packet() reads an N64 packet. | |
123 | * Each pad uses one bit per byte. So all pads connected to this port are read in parallel. | |
124 | */ | |
125 | ||
126 | static void gc_n64_read_packet(struct gc *gc, unsigned char *data) | |
127 | { | |
128 | int i; | |
129 | unsigned long flags; | |
130 | ||
131 | /* | |
132 | * Request the pad to transmit data | |
133 | */ | |
134 | ||
135 | local_irq_save(flags); | |
136 | for (i = 0; i < GC_N64_REQUEST_LENGTH; i++) { | |
137 | parport_write_data(gc->pd->port, GC_N64_POWER_W | ((GC_N64_REQUEST >> i) & 1 ? GC_N64_OUT : 0)); | |
138 | udelay(GC_N64_DWS); | |
139 | } | |
140 | local_irq_restore(flags); | |
141 | ||
142 | /* | |
143 | * Wait for the pad response to be loaded into the 33-bit register of the adapter | |
144 | */ | |
145 | ||
146 | udelay(GC_N64_DELAY); | |
147 | ||
148 | /* | |
149 | * Grab data (ignoring the last bit, which is a stop bit) | |
150 | */ | |
151 | ||
152 | for (i = 0; i < GC_N64_LENGTH; i++) { | |
153 | parport_write_data(gc->pd->port, GC_N64_POWER_R); | |
154 | data[i] = parport_read_status(gc->pd->port); | |
155 | parport_write_data(gc->pd->port, GC_N64_POWER_R | GC_N64_CLOCK); | |
156 | } | |
157 | ||
158 | /* | |
159 | * We must wait 200 ms here for the controller to reinitialize before the next read request. | |
160 | * No worries as long as gc_read is polled less frequently than this. | |
161 | */ | |
162 | ||
163 | } | |
164 | ||
c7fd018d DT |
165 | static void gc_n64_process_packet(struct gc *gc) |
166 | { | |
167 | unsigned char data[GC_N64_LENGTH]; | |
168 | signed char axes[2]; | |
169 | struct input_dev *dev; | |
170 | int i, j, s; | |
171 | ||
172 | gc_n64_read_packet(gc, data); | |
173 | ||
174 | for (i = 0; i < GC_MAX_DEVICES; i++) { | |
175 | ||
176 | dev = gc->dev[i]; | |
177 | if (!dev) | |
178 | continue; | |
179 | ||
180 | s = gc_status_bit[i]; | |
181 | ||
182 | if (s & gc->pads[GC_N64] & ~(data[8] | data[9])) { | |
183 | ||
184 | axes[0] = axes[1] = 0; | |
185 | ||
186 | for (j = 0; j < 8; j++) { | |
187 | if (data[23 - j] & s) | |
188 | axes[0] |= 1 << j; | |
189 | if (data[31 - j] & s) | |
190 | axes[1] |= 1 << j; | |
191 | } | |
192 | ||
193 | input_report_abs(dev, ABS_X, axes[0]); | |
194 | input_report_abs(dev, ABS_Y, -axes[1]); | |
195 | ||
196 | input_report_abs(dev, ABS_HAT0X, !(s & data[6]) - !(s & data[7])); | |
197 | input_report_abs(dev, ABS_HAT0Y, !(s & data[4]) - !(s & data[5])); | |
198 | ||
199 | for (j = 0; j < 10; j++) | |
200 | input_report_key(dev, gc_n64_btn[j], s & data[gc_n64_bytes[j]]); | |
201 | ||
202 | input_sync(dev); | |
203 | } | |
204 | } | |
205 | } | |
206 | ||
1da177e4 LT |
207 | /* |
208 | * NES/SNES support. | |
209 | */ | |
210 | ||
b157d55e RA |
211 | #define GC_NES_DELAY 6 /* Delay between bits - 6us */ |
212 | #define GC_NES_LENGTH 8 /* The NES pads use 8 bits of data */ | |
213 | #define GC_SNES_LENGTH 12 /* The SNES true length is 16, but the | |
214 | last 4 bits are unused */ | |
215 | #define GC_SNESMOUSE_LENGTH 32 /* The SNES mouse uses 32 bits, the first | |
216 | 16 bits are equivalent to a gamepad */ | |
1da177e4 LT |
217 | |
218 | #define GC_NES_POWER 0xfc | |
219 | #define GC_NES_CLOCK 0x01 | |
220 | #define GC_NES_LATCH 0x02 | |
221 | ||
222 | static unsigned char gc_nes_bytes[] = { 0, 1, 2, 3 }; | |
223 | static unsigned char gc_snes_bytes[] = { 8, 0, 2, 3, 9, 1, 10, 11 }; | |
224 | static short gc_snes_btn[] = { BTN_A, BTN_B, BTN_SELECT, BTN_START, BTN_X, BTN_Y, BTN_TL, BTN_TR }; | |
225 | ||
226 | /* | |
227 | * gc_nes_read_packet() reads a NES/SNES packet. | |
228 | * Each pad uses one bit per byte. So all pads connected to | |
229 | * this port are read in parallel. | |
230 | */ | |
231 | ||
232 | static void gc_nes_read_packet(struct gc *gc, int length, unsigned char *data) | |
233 | { | |
234 | int i; | |
235 | ||
236 | parport_write_data(gc->pd->port, GC_NES_POWER | GC_NES_CLOCK | GC_NES_LATCH); | |
237 | udelay(GC_NES_DELAY * 2); | |
238 | parport_write_data(gc->pd->port, GC_NES_POWER | GC_NES_CLOCK); | |
239 | ||
240 | for (i = 0; i < length; i++) { | |
241 | udelay(GC_NES_DELAY); | |
242 | parport_write_data(gc->pd->port, GC_NES_POWER); | |
243 | data[i] = parport_read_status(gc->pd->port) ^ 0x7f; | |
244 | udelay(GC_NES_DELAY); | |
245 | parport_write_data(gc->pd->port, GC_NES_POWER | GC_NES_CLOCK); | |
246 | } | |
247 | } | |
248 | ||
c7fd018d DT |
249 | static void gc_nes_process_packet(struct gc *gc) |
250 | { | |
b157d55e | 251 | unsigned char data[GC_SNESMOUSE_LENGTH]; |
c7fd018d | 252 | struct input_dev *dev; |
b157d55e RA |
253 | int i, j, s, len; |
254 | char x_rel, y_rel; | |
255 | ||
256 | len = gc->pads[GC_SNESMOUSE] ? GC_SNESMOUSE_LENGTH : | |
257 | (gc->pads[GC_SNES] ? GC_SNES_LENGTH : GC_NES_LENGTH); | |
c7fd018d | 258 | |
b157d55e | 259 | gc_nes_read_packet(gc, len, data); |
c7fd018d DT |
260 | |
261 | for (i = 0; i < GC_MAX_DEVICES; i++) { | |
262 | ||
263 | dev = gc->dev[i]; | |
264 | if (!dev) | |
265 | continue; | |
266 | ||
267 | s = gc_status_bit[i]; | |
268 | ||
269 | if (s & (gc->pads[GC_NES] | gc->pads[GC_SNES])) { | |
270 | input_report_abs(dev, ABS_X, !(s & data[6]) - !(s & data[7])); | |
271 | input_report_abs(dev, ABS_Y, !(s & data[4]) - !(s & data[5])); | |
272 | } | |
273 | ||
274 | if (s & gc->pads[GC_NES]) | |
275 | for (j = 0; j < 4; j++) | |
276 | input_report_key(dev, gc_snes_btn[j], s & data[gc_nes_bytes[j]]); | |
277 | ||
278 | if (s & gc->pads[GC_SNES]) | |
279 | for (j = 0; j < 8; j++) | |
280 | input_report_key(dev, gc_snes_btn[j], s & data[gc_snes_bytes[j]]); | |
281 | ||
b157d55e RA |
282 | if (s & gc->pads[GC_SNESMOUSE]) { |
283 | /* | |
284 | * The 4 unused bits from SNES controllers appear to be ID bits | |
285 | * so use them to make sure iwe are dealing with a mouse. | |
286 | * gamepad is connected. This is important since | |
287 | * my SNES gamepad sends 1's for bits 16-31, which | |
288 | * cause the mouse pointer to quickly move to the | |
289 | * upper left corner of the screen. | |
290 | */ | |
291 | if (!(s & data[12]) && !(s & data[13]) && | |
292 | !(s & data[14]) && (s & data[15])) { | |
293 | input_report_key(dev, BTN_LEFT, s & data[9]); | |
294 | input_report_key(dev, BTN_RIGHT, s & data[8]); | |
295 | ||
296 | x_rel = y_rel = 0; | |
297 | for (j = 0; j < 7; j++) { | |
298 | x_rel <<= 1; | |
299 | if (data[25 + j] & s) | |
300 | x_rel |= 1; | |
301 | ||
302 | y_rel <<= 1; | |
303 | if (data[17 + j] & s) | |
304 | y_rel |= 1; | |
305 | } | |
306 | ||
307 | if (x_rel) { | |
308 | if (data[24] & s) | |
309 | x_rel = -x_rel; | |
310 | input_report_rel(dev, REL_X, x_rel); | |
311 | } | |
312 | ||
313 | if (y_rel) { | |
314 | if (data[16] & s) | |
315 | y_rel = -y_rel; | |
316 | input_report_rel(dev, REL_Y, y_rel); | |
317 | } | |
318 | } | |
319 | } | |
c7fd018d DT |
320 | input_sync(dev); |
321 | } | |
322 | } | |
323 | ||
1da177e4 LT |
324 | /* |
325 | * Multisystem joystick support | |
326 | */ | |
327 | ||
328 | #define GC_MULTI_LENGTH 5 /* Multi system joystick packet length is 5 */ | |
329 | #define GC_MULTI2_LENGTH 6 /* One more bit for one more button */ | |
330 | ||
331 | /* | |
332 | * gc_multi_read_packet() reads a Multisystem joystick packet. | |
333 | */ | |
334 | ||
335 | static void gc_multi_read_packet(struct gc *gc, int length, unsigned char *data) | |
336 | { | |
337 | int i; | |
338 | ||
339 | for (i = 0; i < length; i++) { | |
340 | parport_write_data(gc->pd->port, ~(1 << i)); | |
341 | data[i] = parport_read_status(gc->pd->port) ^ 0x7f; | |
342 | } | |
343 | } | |
344 | ||
c7fd018d DT |
345 | static void gc_multi_process_packet(struct gc *gc) |
346 | { | |
347 | unsigned char data[GC_MULTI2_LENGTH]; | |
348 | struct input_dev *dev; | |
349 | int i, s; | |
350 | ||
351 | gc_multi_read_packet(gc, gc->pads[GC_MULTI2] ? GC_MULTI2_LENGTH : GC_MULTI_LENGTH, data); | |
352 | ||
353 | for (i = 0; i < GC_MAX_DEVICES; i++) { | |
354 | ||
355 | dev = gc->dev[i]; | |
356 | if (!dev) | |
357 | continue; | |
358 | ||
359 | s = gc_status_bit[i]; | |
360 | ||
361 | if (s & (gc->pads[GC_MULTI] | gc->pads[GC_MULTI2])) { | |
362 | input_report_abs(dev, ABS_X, !(s & data[2]) - !(s & data[3])); | |
363 | input_report_abs(dev, ABS_Y, !(s & data[0]) - !(s & data[1])); | |
364 | input_report_key(dev, BTN_TRIGGER, s & data[4]); | |
365 | } | |
366 | ||
367 | if (s & gc->pads[GC_MULTI2]) | |
368 | input_report_key(dev, BTN_THUMB, s & data[5]); | |
369 | ||
370 | input_sync(dev); | |
371 | } | |
372 | } | |
373 | ||
1da177e4 LT |
374 | /* |
375 | * PSX support | |
376 | * | |
377 | * See documentation at: | |
378 | * http://www.dim.com/~mackys/psxmemcard/ps-eng2.txt | |
379 | * http://www.gamesx.com/controldata/psxcont/psxcont.htm | |
380 | * ftp://milano.usal.es/pablo/ | |
381 | * | |
382 | */ | |
383 | ||
384 | #define GC_PSX_DELAY 25 /* 25 usec */ | |
385 | #define GC_PSX_LENGTH 8 /* talk to the controller in bits */ | |
386 | #define GC_PSX_BYTES 6 /* the maximum number of bytes to read off the controller */ | |
387 | ||
388 | #define GC_PSX_MOUSE 1 /* Mouse */ | |
389 | #define GC_PSX_NEGCON 2 /* NegCon */ | |
390 | #define GC_PSX_NORMAL 4 /* Digital / Analog or Rumble in Digital mode */ | |
391 | #define GC_PSX_ANALOG 5 /* Analog in Analog mode / Rumble in Green mode */ | |
392 | #define GC_PSX_RUMBLE 7 /* Rumble in Red mode */ | |
393 | ||
394 | #define GC_PSX_CLOCK 0x04 /* Pin 4 */ | |
395 | #define GC_PSX_COMMAND 0x01 /* Pin 2 */ | |
396 | #define GC_PSX_POWER 0xf8 /* Pins 5-9 */ | |
397 | #define GC_PSX_SELECT 0x02 /* Pin 3 */ | |
398 | ||
399 | #define GC_PSX_ID(x) ((x) >> 4) /* High nibble is device type */ | |
400 | #define GC_PSX_LEN(x) (((x) & 0xf) << 1) /* Low nibble is length in bytes/2 */ | |
401 | ||
402 | static int gc_psx_delay = GC_PSX_DELAY; | |
403 | module_param_named(psx_delay, gc_psx_delay, uint, 0); | |
404 | MODULE_PARM_DESC(psx_delay, "Delay when accessing Sony PSX controller (usecs)"); | |
405 | ||
406 | __obsolete_setup("gc_psx_delay="); | |
407 | ||
408 | static short gc_psx_abs[] = { ABS_X, ABS_Y, ABS_RX, ABS_RY, ABS_HAT0X, ABS_HAT0Y }; | |
409 | static short gc_psx_btn[] = { BTN_TL, BTN_TR, BTN_TL2, BTN_TR2, BTN_A, BTN_B, BTN_X, BTN_Y, | |
410 | BTN_START, BTN_SELECT, BTN_THUMBL, BTN_THUMBR }; | |
411 | static short gc_psx_ddr_btn[] = { BTN_0, BTN_1, BTN_2, BTN_3 }; | |
412 | ||
413 | /* | |
414 | * gc_psx_command() writes 8bit command and reads 8bit data from | |
415 | * the psx pad. | |
416 | */ | |
417 | ||
c7fd018d | 418 | static void gc_psx_command(struct gc *gc, int b, unsigned char data[GC_MAX_DEVICES]) |
1da177e4 LT |
419 | { |
420 | int i, j, cmd, read; | |
c7fd018d DT |
421 | |
422 | for (i = 0; i < GC_MAX_DEVICES; i++) | |
1da177e4 LT |
423 | data[i] = 0; |
424 | ||
425 | for (i = 0; i < GC_PSX_LENGTH; i++, b >>= 1) { | |
426 | cmd = (b & 1) ? GC_PSX_COMMAND : 0; | |
427 | parport_write_data(gc->pd->port, cmd | GC_PSX_POWER); | |
428 | udelay(gc_psx_delay); | |
429 | read = parport_read_status(gc->pd->port) ^ 0x80; | |
c7fd018d | 430 | for (j = 0; j < GC_MAX_DEVICES; j++) |
1da177e4 LT |
431 | data[j] |= (read & gc_status_bit[j] & (gc->pads[GC_PSX] | gc->pads[GC_DDR])) ? (1 << i) : 0; |
432 | parport_write_data(gc->pd->port, cmd | GC_PSX_CLOCK | GC_PSX_POWER); | |
433 | udelay(gc_psx_delay); | |
434 | } | |
435 | } | |
436 | ||
437 | /* | |
438 | * gc_psx_read_packet() reads a whole psx packet and returns | |
439 | * device identifier code. | |
440 | */ | |
441 | ||
c7fd018d DT |
442 | static void gc_psx_read_packet(struct gc *gc, unsigned char data[GC_MAX_DEVICES][GC_PSX_BYTES], |
443 | unsigned char id[GC_MAX_DEVICES]) | |
1da177e4 LT |
444 | { |
445 | int i, j, max_len = 0; | |
446 | unsigned long flags; | |
c7fd018d | 447 | unsigned char data2[GC_MAX_DEVICES]; |
1da177e4 LT |
448 | |
449 | parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_SELECT | GC_PSX_POWER); /* Select pad */ | |
450 | udelay(gc_psx_delay); | |
451 | parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_POWER); /* Deselect, begin command */ | |
452 | udelay(gc_psx_delay); | |
453 | ||
454 | local_irq_save(flags); | |
455 | ||
456 | gc_psx_command(gc, 0x01, data2); /* Access pad */ | |
457 | gc_psx_command(gc, 0x42, id); /* Get device ids */ | |
458 | gc_psx_command(gc, 0, data2); /* Dump status */ | |
459 | ||
c7fd018d | 460 | for (i =0; i < GC_MAX_DEVICES; i++) /* Find the longest pad */ |
1da177e4 LT |
461 | if((gc_status_bit[i] & (gc->pads[GC_PSX] | gc->pads[GC_DDR])) |
462 | && (GC_PSX_LEN(id[i]) > max_len) | |
463 | && (GC_PSX_LEN(id[i]) <= GC_PSX_BYTES)) | |
464 | max_len = GC_PSX_LEN(id[i]); | |
465 | ||
466 | for (i = 0; i < max_len; i++) { /* Read in all the data */ | |
467 | gc_psx_command(gc, 0, data2); | |
c7fd018d | 468 | for (j = 0; j < GC_MAX_DEVICES; j++) |
1da177e4 LT |
469 | data[j][i] = data2[j]; |
470 | } | |
471 | ||
472 | local_irq_restore(flags); | |
473 | ||
474 | parport_write_data(gc->pd->port, GC_PSX_CLOCK | GC_PSX_SELECT | GC_PSX_POWER); | |
475 | ||
c7fd018d | 476 | for(i = 0; i < GC_MAX_DEVICES; i++) /* Set id's to the real value */ |
1da177e4 LT |
477 | id[i] = GC_PSX_ID(id[i]); |
478 | } | |
479 | ||
c7fd018d DT |
480 | static void gc_psx_process_packet(struct gc *gc) |
481 | { | |
482 | unsigned char data[GC_MAX_DEVICES][GC_PSX_BYTES]; | |
483 | unsigned char id[GC_MAX_DEVICES]; | |
484 | struct input_dev *dev; | |
485 | int i, j; | |
1da177e4 | 486 | |
c7fd018d | 487 | gc_psx_read_packet(gc, data, id); |
1da177e4 | 488 | |
c7fd018d | 489 | for (i = 0; i < GC_MAX_DEVICES; i++) { |
1da177e4 | 490 | |
c7fd018d DT |
491 | dev = gc->dev[i]; |
492 | if (!dev) | |
493 | continue; | |
1da177e4 | 494 | |
c7fd018d | 495 | switch (id[i]) { |
1da177e4 | 496 | |
c7fd018d | 497 | case GC_PSX_RUMBLE: |
1da177e4 | 498 | |
c7fd018d DT |
499 | input_report_key(dev, BTN_THUMBL, ~data[i][0] & 0x04); |
500 | input_report_key(dev, BTN_THUMBR, ~data[i][0] & 0x02); | |
1da177e4 | 501 | |
c7fd018d DT |
502 | case GC_PSX_NEGCON: |
503 | case GC_PSX_ANALOG: | |
1da177e4 | 504 | |
c7fd018d DT |
505 | if (gc->pads[GC_DDR] & gc_status_bit[i]) { |
506 | for(j = 0; j < 4; j++) | |
507 | input_report_key(dev, gc_psx_ddr_btn[j], ~data[i][0] & (0x10 << j)); | |
508 | } else { | |
509 | for (j = 0; j < 4; j++) | |
510 | input_report_abs(dev, gc_psx_abs[j + 2], data[i][j + 2]); | |
1da177e4 | 511 | |
c7fd018d DT |
512 | input_report_abs(dev, ABS_X, 128 + !(data[i][0] & 0x20) * 127 - !(data[i][0] & 0x80) * 128); |
513 | input_report_abs(dev, ABS_Y, 128 + !(data[i][0] & 0x40) * 127 - !(data[i][0] & 0x10) * 128); | |
514 | } | |
1da177e4 | 515 | |
c7fd018d DT |
516 | for (j = 0; j < 8; j++) |
517 | input_report_key(dev, gc_psx_btn[j], ~data[i][1] & (1 << j)); | |
518 | ||
519 | input_report_key(dev, BTN_START, ~data[i][0] & 0x08); | |
520 | input_report_key(dev, BTN_SELECT, ~data[i][0] & 0x01); | |
521 | ||
522 | input_sync(dev); | |
523 | ||
524 | break; | |
525 | ||
526 | case GC_PSX_NORMAL: | |
527 | if (gc->pads[GC_DDR] & gc_status_bit[i]) { | |
528 | for(j = 0; j < 4; j++) | |
529 | input_report_key(dev, gc_psx_ddr_btn[j], ~data[i][0] & (0x10 << j)); | |
530 | } else { | |
531 | input_report_abs(dev, ABS_X, 128 + !(data[i][0] & 0x20) * 127 - !(data[i][0] & 0x80) * 128); | |
532 | input_report_abs(dev, ABS_Y, 128 + !(data[i][0] & 0x40) * 127 - !(data[i][0] & 0x10) * 128); | |
533 | ||
534 | /* for some reason if the extra axes are left unset they drift */ | |
535 | /* for (j = 0; j < 4; j++) | |
536 | input_report_abs(dev, gc_psx_abs[j + 2], 128); | |
537 | * This needs to be debugged properly, | |
538 | * maybe fuzz processing needs to be done in input_sync() | |
539 | * --vojtech | |
540 | */ | |
1da177e4 LT |
541 | } |
542 | ||
c7fd018d DT |
543 | for (j = 0; j < 8; j++) |
544 | input_report_key(dev, gc_psx_btn[j], ~data[i][1] & (1 << j)); | |
1da177e4 | 545 | |
c7fd018d DT |
546 | input_report_key(dev, BTN_START, ~data[i][0] & 0x08); |
547 | input_report_key(dev, BTN_SELECT, ~data[i][0] & 0x01); | |
1da177e4 | 548 | |
c7fd018d | 549 | input_sync(dev); |
1da177e4 | 550 | |
c7fd018d DT |
551 | break; |
552 | ||
553 | case 0: /* not a pad, ignore */ | |
554 | break; | |
1da177e4 LT |
555 | } |
556 | } | |
c7fd018d | 557 | } |
1da177e4 LT |
558 | |
559 | /* | |
c7fd018d | 560 | * gc_timer() initiates reads of console pads data. |
1da177e4 LT |
561 | */ |
562 | ||
c7fd018d DT |
563 | static void gc_timer(unsigned long private) |
564 | { | |
565 | struct gc *gc = (void *) private; | |
1da177e4 | 566 | |
c7fd018d DT |
567 | /* |
568 | * N64 pads - must be read first, any read confuses them for 200 us | |
569 | */ | |
1da177e4 | 570 | |
c7fd018d DT |
571 | if (gc->pads[GC_N64]) |
572 | gc_n64_process_packet(gc); | |
1da177e4 | 573 | |
c7fd018d | 574 | /* |
b157d55e | 575 | * NES and SNES pads or mouse |
c7fd018d | 576 | */ |
1da177e4 | 577 | |
b157d55e | 578 | if (gc->pads[GC_NES] || gc->pads[GC_SNES] || gc->pads[GC_SNESMOUSE]) |
c7fd018d | 579 | gc_nes_process_packet(gc); |
1da177e4 LT |
580 | |
581 | /* | |
582 | * Multi and Multi2 joysticks | |
583 | */ | |
584 | ||
c7fd018d DT |
585 | if (gc->pads[GC_MULTI] || gc->pads[GC_MULTI2]) |
586 | gc_multi_process_packet(gc); | |
1da177e4 LT |
587 | |
588 | /* | |
589 | * PSX controllers | |
590 | */ | |
591 | ||
c7fd018d DT |
592 | if (gc->pads[GC_PSX] || gc->pads[GC_DDR]) |
593 | gc_psx_process_packet(gc); | |
1da177e4 LT |
594 | |
595 | mod_timer(&gc->timer, jiffies + GC_REFRESH_TIME); | |
596 | } | |
597 | ||
598 | static int gc_open(struct input_dev *dev) | |
599 | { | |
600 | struct gc *gc = dev->private; | |
8b1a198b DT |
601 | int err; |
602 | ||
72ba9f0c | 603 | err = mutex_lock_interruptible(&gc->mutex); |
8b1a198b DT |
604 | if (err) |
605 | return err; | |
606 | ||
1da177e4 LT |
607 | if (!gc->used++) { |
608 | parport_claim(gc->pd); | |
609 | parport_write_control(gc->pd->port, 0x04); | |
610 | mod_timer(&gc->timer, jiffies + GC_REFRESH_TIME); | |
611 | } | |
8b1a198b | 612 | |
72ba9f0c | 613 | mutex_unlock(&gc->mutex); |
1da177e4 LT |
614 | return 0; |
615 | } | |
616 | ||
617 | static void gc_close(struct input_dev *dev) | |
618 | { | |
619 | struct gc *gc = dev->private; | |
8b1a198b | 620 | |
72ba9f0c | 621 | mutex_lock(&gc->mutex); |
1da177e4 | 622 | if (!--gc->used) { |
8b1a198b | 623 | del_timer_sync(&gc->timer); |
1da177e4 LT |
624 | parport_write_control(gc->pd->port, 0x00); |
625 | parport_release(gc->pd); | |
626 | } | |
72ba9f0c | 627 | mutex_unlock(&gc->mutex); |
1da177e4 LT |
628 | } |
629 | ||
17dd3f0f | 630 | static int __init gc_setup_pad(struct gc *gc, int idx, int pad_type) |
1da177e4 | 631 | { |
17dd3f0f DT |
632 | struct input_dev *input_dev; |
633 | int i; | |
1da177e4 | 634 | |
17dd3f0f DT |
635 | if (!pad_type) |
636 | return 0; | |
1da177e4 | 637 | |
17dd3f0f DT |
638 | if (pad_type < 1 || pad_type > GC_MAX) { |
639 | printk(KERN_WARNING "gamecon.c: Pad type %d unknown\n", pad_type); | |
640 | return -EINVAL; | |
1da177e4 LT |
641 | } |
642 | ||
17dd3f0f DT |
643 | gc->dev[idx] = input_dev = input_allocate_device(); |
644 | if (!input_dev) { | |
645 | printk(KERN_ERR "gamecon.c: Not enough memory for input device\n"); | |
646 | return -ENOMEM; | |
1da177e4 LT |
647 | } |
648 | ||
17dd3f0f DT |
649 | input_dev->name = gc_names[pad_type]; |
650 | input_dev->phys = gc->phys[idx]; | |
651 | input_dev->id.bustype = BUS_PARPORT; | |
652 | input_dev->id.vendor = 0x0001; | |
653 | input_dev->id.product = pad_type; | |
654 | input_dev->id.version = 0x0100; | |
655 | input_dev->private = gc; | |
656 | ||
657 | input_dev->open = gc_open; | |
658 | input_dev->close = gc_close; | |
659 | ||
b157d55e RA |
660 | if (pad_type != GC_SNESMOUSE) { |
661 | input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS); | |
17dd3f0f | 662 | |
b157d55e RA |
663 | for (i = 0; i < 2; i++) |
664 | input_set_abs_params(input_dev, ABS_X + i, -1, 1, 0, 0); | |
665 | } else | |
666 | input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REL); | |
17dd3f0f DT |
667 | |
668 | gc->pads[0] |= gc_status_bit[idx]; | |
669 | gc->pads[pad_type] |= gc_status_bit[idx]; | |
670 | ||
671 | switch (pad_type) { | |
672 | ||
673 | case GC_N64: | |
674 | for (i = 0; i < 10; i++) | |
675 | set_bit(gc_n64_btn[i], input_dev->keybit); | |
676 | ||
677 | for (i = 0; i < 2; i++) { | |
678 | input_set_abs_params(input_dev, ABS_X + i, -127, 126, 0, 2); | |
679 | input_set_abs_params(input_dev, ABS_HAT0X + i, -1, 1, 0, 0); | |
680 | } | |
681 | ||
682 | break; | |
683 | ||
b157d55e RA |
684 | case GC_SNESMOUSE: |
685 | set_bit(BTN_LEFT, input_dev->keybit); | |
686 | set_bit(BTN_RIGHT, input_dev->keybit); | |
687 | set_bit(REL_X, input_dev->relbit); | |
688 | set_bit(REL_Y, input_dev->relbit); | |
689 | break; | |
690 | ||
17dd3f0f DT |
691 | case GC_SNES: |
692 | for (i = 4; i < 8; i++) | |
693 | set_bit(gc_snes_btn[i], input_dev->keybit); | |
694 | case GC_NES: | |
695 | for (i = 0; i < 4; i++) | |
696 | set_bit(gc_snes_btn[i], input_dev->keybit); | |
697 | break; | |
698 | ||
699 | case GC_MULTI2: | |
700 | set_bit(BTN_THUMB, input_dev->keybit); | |
701 | case GC_MULTI: | |
702 | set_bit(BTN_TRIGGER, input_dev->keybit); | |
703 | break; | |
704 | ||
705 | case GC_PSX: | |
706 | for (i = 0; i < 6; i++) | |
707 | input_set_abs_params(input_dev, gc_psx_abs[i], 4, 252, 0, 2); | |
708 | for (i = 0; i < 12; i++) | |
709 | set_bit(gc_psx_btn[i], input_dev->keybit); | |
710 | ||
711 | break; | |
712 | ||
713 | case GC_DDR: | |
714 | for (i = 0; i < 4; i++) | |
715 | set_bit(gc_psx_ddr_btn[i], input_dev->keybit); | |
716 | for (i = 0; i < 12; i++) | |
717 | set_bit(gc_psx_btn[i], input_dev->keybit); | |
718 | ||
719 | break; | |
1da177e4 | 720 | } |
8b1a198b | 721 | |
17dd3f0f DT |
722 | return 0; |
723 | } | |
1da177e4 | 724 | |
17dd3f0f DT |
725 | static struct gc __init *gc_probe(int parport, int *pads, int n_pads) |
726 | { | |
727 | struct gc *gc; | |
728 | struct parport *pp; | |
729 | struct pardevice *pd; | |
730 | int i; | |
731 | int err; | |
1da177e4 | 732 | |
17dd3f0f DT |
733 | pp = parport_find_number(parport); |
734 | if (!pp) { | |
735 | printk(KERN_ERR "gamecon.c: no such parport\n"); | |
736 | err = -EINVAL; | |
737 | goto err_out; | |
738 | } | |
1da177e4 | 739 | |
17dd3f0f DT |
740 | pd = parport_register_device(pp, "gamecon", NULL, NULL, NULL, PARPORT_DEV_EXCL, NULL); |
741 | if (!pd) { | |
1da177e4 | 742 | printk(KERN_ERR "gamecon.c: parport busy already - lp.o loaded?\n"); |
17dd3f0f DT |
743 | err = -EBUSY; |
744 | goto err_put_pp; | |
1da177e4 LT |
745 | } |
746 | ||
17dd3f0f DT |
747 | gc = kzalloc(sizeof(struct gc), GFP_KERNEL); |
748 | if (!gc) { | |
749 | printk(KERN_ERR "gamecon.c: Not enough memory\n"); | |
750 | err = -ENOMEM; | |
751 | goto err_unreg_pardev; | |
752 | } | |
1da177e4 | 753 | |
72ba9f0c | 754 | mutex_init(&gc->mutex); |
17dd3f0f | 755 | gc->pd = pd; |
1da177e4 LT |
756 | init_timer(&gc->timer); |
757 | gc->timer.data = (long) gc; | |
758 | gc->timer.function = gc_timer; | |
759 | ||
c7fd018d | 760 | for (i = 0; i < n_pads && i < GC_MAX_DEVICES; i++) { |
17dd3f0f | 761 | if (!pads[i]) |
1da177e4 LT |
762 | continue; |
763 | ||
10ca4c0a DT |
764 | snprintf(gc->phys[i], sizeof(gc->phys[i]), |
765 | "%s/input%d", gc->pd->port->name, i); | |
17dd3f0f DT |
766 | err = gc_setup_pad(gc, i, pads[i]); |
767 | if (err) | |
77fc46ca | 768 | goto err_unreg_devs; |
1da177e4 | 769 | |
77fc46ca DT |
770 | err = input_register_device(gc->dev[i]); |
771 | if (err) | |
772 | goto err_free_dev; | |
17dd3f0f | 773 | } |
1da177e4 | 774 | |
17dd3f0f DT |
775 | if (!gc->pads[0]) { |
776 | printk(KERN_ERR "gamecon.c: No valid devices specified\n"); | |
777 | err = -EINVAL; | |
778 | goto err_free_gc; | |
779 | } | |
1da177e4 | 780 | |
17dd3f0f DT |
781 | parport_put_port(pp); |
782 | return gc; | |
1da177e4 | 783 | |
77fc46ca DT |
784 | err_free_dev: |
785 | input_free_device(gc->dev[i]); | |
786 | err_unreg_devs: | |
17dd3f0f | 787 | while (--i >= 0) |
77fc46ca DT |
788 | if (gc->dev[i]) |
789 | input_unregister_device(gc->dev[i]); | |
17dd3f0f DT |
790 | err_free_gc: |
791 | kfree(gc); | |
792 | err_unreg_pardev: | |
793 | parport_unregister_device(pd); | |
794 | err_put_pp: | |
795 | parport_put_port(pp); | |
796 | err_out: | |
797 | return ERR_PTR(err); | |
798 | } | |
1da177e4 | 799 | |
77fc46ca | 800 | static void gc_remove(struct gc *gc) |
17dd3f0f DT |
801 | { |
802 | int i; | |
1da177e4 | 803 | |
17dd3f0f DT |
804 | for (i = 0; i < GC_MAX_DEVICES; i++) |
805 | if (gc->dev[i]) | |
806 | input_unregister_device(gc->dev[i]); | |
807 | parport_unregister_device(gc->pd); | |
808 | kfree(gc); | |
809 | } | |
1da177e4 | 810 | |
17dd3f0f DT |
811 | static int __init gc_init(void) |
812 | { | |
813 | int i; | |
814 | int have_dev = 0; | |
815 | int err = 0; | |
1da177e4 | 816 | |
17dd3f0f DT |
817 | for (i = 0; i < GC_MAX_PORTS; i++) { |
818 | if (gc[i].nargs == 0 || gc[i].args[0] < 0) | |
819 | continue; | |
1da177e4 | 820 | |
17dd3f0f DT |
821 | if (gc[i].nargs < 2) { |
822 | printk(KERN_ERR "gamecon.c: at least one device must be specified\n"); | |
823 | err = -EINVAL; | |
824 | break; | |
1da177e4 LT |
825 | } |
826 | ||
17dd3f0f DT |
827 | gc_base[i] = gc_probe(gc[i].args[0], gc[i].args + 1, gc[i].nargs - 1); |
828 | if (IS_ERR(gc_base[i])) { | |
829 | err = PTR_ERR(gc_base[i]); | |
830 | break; | |
831 | } | |
1da177e4 | 832 | |
17dd3f0f | 833 | have_dev = 1; |
1da177e4 LT |
834 | } |
835 | ||
17dd3f0f DT |
836 | if (err) { |
837 | while (--i >= 0) | |
77fc46ca DT |
838 | if (gc_base[i]) |
839 | gc_remove(gc_base[i]); | |
17dd3f0f | 840 | return err; |
1da177e4 LT |
841 | } |
842 | ||
17dd3f0f | 843 | return have_dev ? 0 : -ENODEV; |
1da177e4 LT |
844 | } |
845 | ||
846 | static void __exit gc_exit(void) | |
847 | { | |
17dd3f0f DT |
848 | int i; |
849 | ||
850 | for (i = 0; i < GC_MAX_PORTS; i++) | |
851 | if (gc_base[i]) | |
852 | gc_remove(gc_base[i]); | |
1da177e4 LT |
853 | } |
854 | ||
855 | module_init(gc_init); | |
856 | module_exit(gc_exit); |