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1da177e4 LT |
1 | /* |
2 | * $Id: a3d.c,v 1.21 2002/01/22 20:11:50 vojtech Exp $ | |
3 | * | |
4 | * Copyright (c) 1998-2001 Vojtech Pavlik | |
5 | */ | |
6 | ||
7 | /* | |
8 | * FP-Gaming Assasin 3D joystick driver for Linux | |
9 | */ | |
10 | ||
11 | /* | |
12 | * This program is free software; you can redistribute it and/or modify | |
13 | * it under the terms of the GNU General Public License as published by | |
14 | * the Free Software Foundation; either version 2 of the License, or | |
15 | * (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software | |
24 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
25 | * | |
26 | * Should you need to contact me, the author, you can do so either by | |
27 | * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail: | |
28 | * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic | |
29 | */ | |
30 | ||
31 | #include <linux/kernel.h> | |
32 | #include <linux/module.h> | |
33 | #include <linux/slab.h> | |
34 | #include <linux/init.h> | |
35 | #include <linux/gameport.h> | |
36 | #include <linux/input.h> | |
4e57b681 | 37 | #include <linux/jiffies.h> |
1da177e4 LT |
38 | |
39 | #define DRIVER_DESC "FP-Gaming Assasin 3D joystick driver" | |
40 | ||
41 | MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>"); | |
42 | MODULE_DESCRIPTION(DRIVER_DESC); | |
43 | MODULE_LICENSE("GPL"); | |
44 | ||
45 | #define A3D_MAX_START 600 /* 600 us */ | |
46 | #define A3D_MAX_STROBE 80 /* 80 us */ | |
47 | #define A3D_MAX_LENGTH 40 /* 40*3 bits */ | |
48 | ||
49 | #define A3D_MODE_A3D 1 /* Assassin 3D */ | |
50 | #define A3D_MODE_PAN 2 /* Panther */ | |
51 | #define A3D_MODE_OEM 3 /* Panther OEM version */ | |
52 | #define A3D_MODE_PXL 4 /* Panther XL */ | |
53 | ||
54 | static char *a3d_names[] = { NULL, "FP-Gaming Assassin 3D", "MadCatz Panther", "OEM Panther", | |
55 | "MadCatz Panther XL", "MadCatz Panther XL w/ rudder" }; | |
56 | ||
57 | struct a3d { | |
58 | struct gameport *gameport; | |
59 | struct gameport *adc; | |
60 | struct input_dev dev; | |
61 | int axes[4]; | |
62 | int buttons; | |
63 | int mode; | |
64 | int length; | |
65 | int reads; | |
66 | int bads; | |
67 | char phys[32]; | |
68 | }; | |
69 | ||
70 | /* | |
71 | * a3d_read_packet() reads an Assassin 3D packet. | |
72 | */ | |
73 | ||
74 | static int a3d_read_packet(struct gameport *gameport, int length, char *data) | |
75 | { | |
76 | unsigned long flags; | |
77 | unsigned char u, v; | |
78 | unsigned int t, s; | |
79 | int i; | |
80 | ||
81 | i = 0; | |
82 | t = gameport_time(gameport, A3D_MAX_START); | |
83 | s = gameport_time(gameport, A3D_MAX_STROBE); | |
84 | ||
85 | local_irq_save(flags); | |
86 | gameport_trigger(gameport); | |
87 | v = gameport_read(gameport); | |
88 | ||
89 | while (t > 0 && i < length) { | |
90 | t--; | |
91 | u = v; v = gameport_read(gameport); | |
92 | if (~v & u & 0x10) { | |
93 | data[i++] = v >> 5; | |
94 | t = s; | |
95 | } | |
96 | } | |
97 | ||
98 | local_irq_restore(flags); | |
99 | ||
100 | return i; | |
101 | } | |
102 | ||
103 | /* | |
104 | * a3d_csum() computes checksum of triplet packet | |
105 | */ | |
106 | ||
107 | static int a3d_csum(char *data, int count) | |
108 | { | |
109 | int i, csum = 0; | |
110 | ||
111 | for (i = 0; i < count - 2; i++) | |
112 | csum += data[i]; | |
113 | return (csum & 0x3f) != ((data[count - 2] << 3) | data[count - 1]); | |
114 | } | |
115 | ||
116 | static void a3d_read(struct a3d *a3d, unsigned char *data) | |
117 | { | |
118 | struct input_dev *dev = &a3d->dev; | |
119 | ||
120 | switch (a3d->mode) { | |
121 | ||
122 | case A3D_MODE_A3D: | |
123 | case A3D_MODE_OEM: | |
124 | case A3D_MODE_PAN: | |
125 | ||
126 | input_report_rel(dev, REL_X, ((data[5] << 6) | (data[6] << 3) | data[ 7]) - ((data[5] & 4) << 7)); | |
127 | input_report_rel(dev, REL_Y, ((data[8] << 6) | (data[9] << 3) | data[10]) - ((data[8] & 4) << 7)); | |
128 | ||
129 | input_report_key(dev, BTN_RIGHT, data[2] & 1); | |
130 | input_report_key(dev, BTN_LEFT, data[3] & 2); | |
131 | input_report_key(dev, BTN_MIDDLE, data[3] & 4); | |
132 | ||
133 | input_sync(dev); | |
134 | ||
135 | a3d->axes[0] = ((signed char)((data[11] << 6) | (data[12] << 3) | (data[13]))) + 128; | |
136 | a3d->axes[1] = ((signed char)((data[14] << 6) | (data[15] << 3) | (data[16]))) + 128; | |
137 | a3d->axes[2] = ((signed char)((data[17] << 6) | (data[18] << 3) | (data[19]))) + 128; | |
138 | a3d->axes[3] = ((signed char)((data[20] << 6) | (data[21] << 3) | (data[22]))) + 128; | |
139 | ||
140 | a3d->buttons = ((data[3] << 3) | data[4]) & 0xf; | |
141 | ||
142 | break; | |
143 | ||
144 | case A3D_MODE_PXL: | |
145 | ||
146 | input_report_rel(dev, REL_X, ((data[ 9] << 6) | (data[10] << 3) | data[11]) - ((data[ 9] & 4) << 7)); | |
147 | input_report_rel(dev, REL_Y, ((data[12] << 6) | (data[13] << 3) | data[14]) - ((data[12] & 4) << 7)); | |
148 | ||
149 | input_report_key(dev, BTN_RIGHT, data[2] & 1); | |
150 | input_report_key(dev, BTN_LEFT, data[3] & 2); | |
151 | input_report_key(dev, BTN_MIDDLE, data[3] & 4); | |
152 | input_report_key(dev, BTN_SIDE, data[7] & 2); | |
153 | input_report_key(dev, BTN_EXTRA, data[7] & 4); | |
154 | ||
155 | input_report_abs(dev, ABS_X, ((signed char)((data[15] << 6) | (data[16] << 3) | (data[17]))) + 128); | |
156 | input_report_abs(dev, ABS_Y, ((signed char)((data[18] << 6) | (data[19] << 3) | (data[20]))) + 128); | |
157 | input_report_abs(dev, ABS_RUDDER, ((signed char)((data[21] << 6) | (data[22] << 3) | (data[23]))) + 128); | |
158 | input_report_abs(dev, ABS_THROTTLE, ((signed char)((data[24] << 6) | (data[25] << 3) | (data[26]))) + 128); | |
159 | ||
160 | input_report_abs(dev, ABS_HAT0X, ( data[5] & 1) - ((data[5] >> 2) & 1)); | |
161 | input_report_abs(dev, ABS_HAT0Y, ((data[5] >> 1) & 1) - ((data[6] >> 2) & 1)); | |
162 | input_report_abs(dev, ABS_HAT1X, ((data[4] >> 1) & 1) - ( data[3] & 1)); | |
163 | input_report_abs(dev, ABS_HAT1Y, ((data[4] >> 2) & 1) - ( data[4] & 1)); | |
164 | ||
165 | input_report_key(dev, BTN_TRIGGER, data[8] & 1); | |
166 | input_report_key(dev, BTN_THUMB, data[8] & 2); | |
167 | input_report_key(dev, BTN_TOP, data[8] & 4); | |
168 | input_report_key(dev, BTN_PINKIE, data[7] & 1); | |
169 | ||
170 | input_sync(dev); | |
171 | ||
172 | break; | |
173 | } | |
174 | } | |
175 | ||
176 | ||
177 | /* | |
178 | * a3d_poll() reads and analyzes A3D joystick data. | |
179 | */ | |
180 | ||
181 | static void a3d_poll(struct gameport *gameport) | |
182 | { | |
183 | struct a3d *a3d = gameport_get_drvdata(gameport); | |
184 | unsigned char data[A3D_MAX_LENGTH]; | |
185 | ||
186 | a3d->reads++; | |
187 | if (a3d_read_packet(a3d->gameport, a3d->length, data) != a3d->length || | |
188 | data[0] != a3d->mode || a3d_csum(data, a3d->length)) | |
ab0c3443 | 189 | a3d->bads++; |
1da177e4 LT |
190 | else |
191 | a3d_read(a3d, data); | |
192 | } | |
193 | ||
194 | /* | |
195 | * a3d_adc_cooked_read() copies the acis and button data to the | |
196 | * callers arrays. It could do the read itself, but the caller could | |
197 | * call this more than 50 times a second, which would use too much CPU. | |
198 | */ | |
199 | ||
200 | static int a3d_adc_cooked_read(struct gameport *gameport, int *axes, int *buttons) | |
201 | { | |
202 | struct a3d *a3d = gameport->port_data; | |
203 | int i; | |
204 | ||
205 | for (i = 0; i < 4; i++) | |
206 | axes[i] = (a3d->axes[i] < 254) ? a3d->axes[i] : -1; | |
207 | *buttons = a3d->buttons; | |
208 | return 0; | |
209 | } | |
210 | ||
211 | /* | |
212 | * a3d_adc_open() is the gameport open routine. It refuses to serve | |
213 | * any but cooked data. | |
214 | */ | |
215 | ||
216 | static int a3d_adc_open(struct gameport *gameport, int mode) | |
217 | { | |
218 | struct a3d *a3d = gameport->port_data; | |
219 | ||
220 | if (mode != GAMEPORT_MODE_COOKED) | |
221 | return -1; | |
222 | ||
223 | gameport_start_polling(a3d->gameport); | |
224 | return 0; | |
225 | } | |
226 | ||
227 | /* | |
228 | * a3d_adc_close() is a callback from the input close routine. | |
229 | */ | |
230 | ||
231 | static void a3d_adc_close(struct gameport *gameport) | |
232 | { | |
233 | struct a3d *a3d = gameport->port_data; | |
234 | ||
235 | gameport_stop_polling(a3d->gameport); | |
236 | } | |
237 | ||
238 | /* | |
239 | * a3d_open() is a callback from the input open routine. | |
240 | */ | |
241 | ||
242 | static int a3d_open(struct input_dev *dev) | |
243 | { | |
244 | struct a3d *a3d = dev->private; | |
245 | ||
246 | gameport_start_polling(a3d->gameport); | |
247 | return 0; | |
248 | } | |
249 | ||
250 | /* | |
251 | * a3d_close() is a callback from the input close routine. | |
252 | */ | |
253 | ||
254 | static void a3d_close(struct input_dev *dev) | |
255 | { | |
256 | struct a3d *a3d = dev->private; | |
257 | ||
258 | gameport_stop_polling(a3d->gameport); | |
259 | } | |
260 | ||
261 | /* | |
262 | * a3d_connect() probes for A3D joysticks. | |
263 | */ | |
264 | ||
265 | static int a3d_connect(struct gameport *gameport, struct gameport_driver *drv) | |
266 | { | |
267 | struct a3d *a3d; | |
268 | struct gameport *adc; | |
269 | unsigned char data[A3D_MAX_LENGTH]; | |
270 | int i; | |
271 | int err; | |
272 | ||
a97e148a | 273 | if (!(a3d = kzalloc(sizeof(struct a3d), GFP_KERNEL))) |
1da177e4 LT |
274 | return -ENOMEM; |
275 | ||
276 | a3d->gameport = gameport; | |
277 | ||
278 | gameport_set_drvdata(gameport, a3d); | |
279 | ||
280 | err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW); | |
281 | if (err) | |
282 | goto fail1; | |
283 | ||
284 | i = a3d_read_packet(gameport, A3D_MAX_LENGTH, data); | |
285 | ||
286 | if (!i || a3d_csum(data, i)) { | |
287 | err = -ENODEV; | |
288 | goto fail2; | |
289 | } | |
290 | ||
291 | a3d->mode = data[0]; | |
292 | ||
293 | if (!a3d->mode || a3d->mode > 5) { | |
294 | printk(KERN_WARNING "a3d.c: Unknown A3D device detected " | |
295 | "(%s, id=%d), contact <vojtech@ucw.cz>\n", gameport->phys, a3d->mode); | |
296 | err = -ENODEV; | |
297 | goto fail2; | |
298 | } | |
299 | ||
300 | gameport_set_poll_handler(gameport, a3d_poll); | |
301 | gameport_set_poll_interval(gameport, 20); | |
302 | ||
303 | sprintf(a3d->phys, "%s/input0", gameport->phys); | |
304 | ||
305 | if (a3d->mode == A3D_MODE_PXL) { | |
306 | ||
307 | int axes[] = { ABS_X, ABS_Y, ABS_THROTTLE, ABS_RUDDER }; | |
308 | ||
309 | a3d->length = 33; | |
310 | ||
311 | init_input_dev(&a3d->dev); | |
312 | ||
313 | a3d->dev.evbit[0] |= BIT(EV_ABS) | BIT(EV_KEY) | BIT(EV_REL); | |
314 | a3d->dev.relbit[0] |= BIT(REL_X) | BIT(REL_Y); | |
315 | a3d->dev.absbit[0] |= BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_THROTTLE) | BIT(ABS_RUDDER) | |
316 | | BIT(ABS_HAT0X) | BIT(ABS_HAT0Y) | BIT(ABS_HAT1X) | BIT(ABS_HAT1Y); | |
317 | ||
318 | a3d->dev.keybit[LONG(BTN_MOUSE)] |= BIT(BTN_RIGHT) | BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | |
319 | | BIT(BTN_SIDE) | BIT(BTN_EXTRA); | |
320 | ||
321 | a3d->dev.keybit[LONG(BTN_JOYSTICK)] |= BIT(BTN_TRIGGER) | BIT(BTN_THUMB) | BIT(BTN_TOP) | BIT(BTN_PINKIE); | |
322 | ||
323 | a3d_read(a3d, data); | |
324 | ||
325 | for (i = 0; i < 4; i++) { | |
326 | if (i < 2) | |
327 | input_set_abs_params(&a3d->dev, axes[i], 48, a3d->dev.abs[axes[i]] * 2 - 48, 0, 8); | |
328 | else | |
329 | input_set_abs_params(&a3d->dev, axes[i], 2, 253, 0, 0); | |
330 | input_set_abs_params(&a3d->dev, ABS_HAT0X + i, -1, 1, 0, 0); | |
331 | } | |
332 | ||
333 | } else { | |
334 | a3d->length = 29; | |
335 | ||
336 | init_input_dev(&a3d->dev); | |
337 | ||
338 | a3d->dev.evbit[0] |= BIT(EV_KEY) | BIT(EV_REL); | |
339 | a3d->dev.relbit[0] |= BIT(REL_X) | BIT(REL_Y); | |
340 | a3d->dev.keybit[LONG(BTN_MOUSE)] |= BIT(BTN_RIGHT) | BIT(BTN_LEFT) | BIT(BTN_MIDDLE); | |
341 | ||
342 | a3d_read(a3d, data); | |
343 | ||
344 | if (!(a3d->adc = adc = gameport_allocate_port())) | |
345 | printk(KERN_ERR "a3d: Not enough memory for ADC port\n"); | |
346 | else { | |
347 | adc->port_data = a3d; | |
348 | adc->open = a3d_adc_open; | |
349 | adc->close = a3d_adc_close; | |
350 | adc->cooked_read = a3d_adc_cooked_read; | |
351 | adc->fuzz = 1; | |
352 | ||
353 | gameport_set_name(adc, a3d_names[a3d->mode]); | |
354 | gameport_set_phys(adc, "%s/gameport0", gameport->phys); | |
355 | adc->dev.parent = &gameport->dev; | |
356 | ||
357 | gameport_register_port(adc); | |
358 | } | |
359 | } | |
360 | ||
361 | a3d->dev.private = a3d; | |
362 | a3d->dev.open = a3d_open; | |
363 | a3d->dev.close = a3d_close; | |
364 | ||
365 | a3d->dev.name = a3d_names[a3d->mode]; | |
366 | a3d->dev.phys = a3d->phys; | |
367 | a3d->dev.id.bustype = BUS_GAMEPORT; | |
368 | a3d->dev.id.vendor = GAMEPORT_ID_VENDOR_MADCATZ; | |
369 | a3d->dev.id.product = a3d->mode; | |
370 | a3d->dev.id.version = 0x0100; | |
371 | ||
372 | input_register_device(&a3d->dev); | |
373 | printk(KERN_INFO "input: %s on %s\n", a3d_names[a3d->mode], a3d->phys); | |
374 | ||
375 | return 0; | |
376 | ||
377 | fail2: gameport_close(gameport); | |
378 | fail1: gameport_set_drvdata(gameport, NULL); | |
379 | kfree(a3d); | |
380 | return err; | |
381 | } | |
382 | ||
383 | static void a3d_disconnect(struct gameport *gameport) | |
384 | { | |
385 | struct a3d *a3d = gameport_get_drvdata(gameport); | |
386 | ||
387 | input_unregister_device(&a3d->dev); | |
388 | if (a3d->adc) { | |
389 | gameport_unregister_port(a3d->adc); | |
390 | a3d->adc = NULL; | |
391 | } | |
392 | gameport_close(gameport); | |
393 | gameport_set_drvdata(gameport, NULL); | |
394 | kfree(a3d); | |
395 | } | |
396 | ||
397 | static struct gameport_driver a3d_drv = { | |
398 | .driver = { | |
399 | .name = "adc", | |
400 | }, | |
401 | .description = DRIVER_DESC, | |
402 | .connect = a3d_connect, | |
403 | .disconnect = a3d_disconnect, | |
404 | }; | |
405 | ||
406 | static int __init a3d_init(void) | |
407 | { | |
408 | gameport_register_driver(&a3d_drv); | |
409 | return 0; | |
410 | } | |
411 | ||
412 | static void __exit a3d_exit(void) | |
413 | { | |
414 | gameport_unregister_driver(&a3d_drv); | |
415 | } | |
416 | ||
417 | module_init(a3d_init); | |
418 | module_exit(a3d_exit); |