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1da177e4 | 1 | /* |
1da177e4 LT |
2 | * Copyright (c) 1998-2001 Vojtech Pavlik |
3 | */ | |
4 | ||
5 | /* | |
25985edc | 6 | * FP-Gaming Assassin 3D joystick driver for Linux |
1da177e4 LT |
7 | */ |
8 | ||
9 | /* | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License as published by | |
12 | * the Free Software Foundation; either version 2 of the License, or | |
13 | * (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
23 | * | |
24 | * Should you need to contact me, the author, you can do so either by | |
25 | * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail: | |
26 | * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic | |
27 | */ | |
28 | ||
29 | #include <linux/kernel.h> | |
30 | #include <linux/module.h> | |
31 | #include <linux/slab.h> | |
1da177e4 LT |
32 | #include <linux/gameport.h> |
33 | #include <linux/input.h> | |
4e57b681 | 34 | #include <linux/jiffies.h> |
1da177e4 | 35 | |
25985edc | 36 | #define DRIVER_DESC "FP-Gaming Assassin 3D joystick driver" |
1da177e4 LT |
37 | |
38 | MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>"); | |
39 | MODULE_DESCRIPTION(DRIVER_DESC); | |
40 | MODULE_LICENSE("GPL"); | |
41 | ||
42 | #define A3D_MAX_START 600 /* 600 us */ | |
43 | #define A3D_MAX_STROBE 80 /* 80 us */ | |
44 | #define A3D_MAX_LENGTH 40 /* 40*3 bits */ | |
45 | ||
46 | #define A3D_MODE_A3D 1 /* Assassin 3D */ | |
47 | #define A3D_MODE_PAN 2 /* Panther */ | |
48 | #define A3D_MODE_OEM 3 /* Panther OEM version */ | |
49 | #define A3D_MODE_PXL 4 /* Panther XL */ | |
50 | ||
51 | static char *a3d_names[] = { NULL, "FP-Gaming Assassin 3D", "MadCatz Panther", "OEM Panther", | |
52 | "MadCatz Panther XL", "MadCatz Panther XL w/ rudder" }; | |
53 | ||
54 | struct a3d { | |
55 | struct gameport *gameport; | |
56 | struct gameport *adc; | |
275c6ce2 | 57 | struct input_dev *dev; |
1da177e4 LT |
58 | int axes[4]; |
59 | int buttons; | |
60 | int mode; | |
61 | int length; | |
62 | int reads; | |
63 | int bads; | |
64 | char phys[32]; | |
65 | }; | |
66 | ||
67 | /* | |
68 | * a3d_read_packet() reads an Assassin 3D packet. | |
69 | */ | |
70 | ||
71 | static int a3d_read_packet(struct gameport *gameport, int length, char *data) | |
72 | { | |
73 | unsigned long flags; | |
74 | unsigned char u, v; | |
75 | unsigned int t, s; | |
76 | int i; | |
77 | ||
78 | i = 0; | |
79 | t = gameport_time(gameport, A3D_MAX_START); | |
80 | s = gameport_time(gameport, A3D_MAX_STROBE); | |
81 | ||
82 | local_irq_save(flags); | |
83 | gameport_trigger(gameport); | |
84 | v = gameport_read(gameport); | |
85 | ||
86 | while (t > 0 && i < length) { | |
87 | t--; | |
88 | u = v; v = gameport_read(gameport); | |
89 | if (~v & u & 0x10) { | |
90 | data[i++] = v >> 5; | |
91 | t = s; | |
92 | } | |
93 | } | |
94 | ||
95 | local_irq_restore(flags); | |
96 | ||
97 | return i; | |
98 | } | |
99 | ||
100 | /* | |
101 | * a3d_csum() computes checksum of triplet packet | |
102 | */ | |
103 | ||
104 | static int a3d_csum(char *data, int count) | |
105 | { | |
106 | int i, csum = 0; | |
107 | ||
108 | for (i = 0; i < count - 2; i++) | |
109 | csum += data[i]; | |
110 | return (csum & 0x3f) != ((data[count - 2] << 3) | data[count - 1]); | |
111 | } | |
112 | ||
113 | static void a3d_read(struct a3d *a3d, unsigned char *data) | |
114 | { | |
275c6ce2 | 115 | struct input_dev *dev = a3d->dev; |
1da177e4 LT |
116 | |
117 | switch (a3d->mode) { | |
118 | ||
119 | case A3D_MODE_A3D: | |
120 | case A3D_MODE_OEM: | |
121 | case A3D_MODE_PAN: | |
122 | ||
123 | input_report_rel(dev, REL_X, ((data[5] << 6) | (data[6] << 3) | data[ 7]) - ((data[5] & 4) << 7)); | |
124 | input_report_rel(dev, REL_Y, ((data[8] << 6) | (data[9] << 3) | data[10]) - ((data[8] & 4) << 7)); | |
125 | ||
126 | input_report_key(dev, BTN_RIGHT, data[2] & 1); | |
127 | input_report_key(dev, BTN_LEFT, data[3] & 2); | |
128 | input_report_key(dev, BTN_MIDDLE, data[3] & 4); | |
129 | ||
130 | input_sync(dev); | |
131 | ||
132 | a3d->axes[0] = ((signed char)((data[11] << 6) | (data[12] << 3) | (data[13]))) + 128; | |
133 | a3d->axes[1] = ((signed char)((data[14] << 6) | (data[15] << 3) | (data[16]))) + 128; | |
134 | a3d->axes[2] = ((signed char)((data[17] << 6) | (data[18] << 3) | (data[19]))) + 128; | |
135 | a3d->axes[3] = ((signed char)((data[20] << 6) | (data[21] << 3) | (data[22]))) + 128; | |
136 | ||
137 | a3d->buttons = ((data[3] << 3) | data[4]) & 0xf; | |
138 | ||
139 | break; | |
140 | ||
141 | case A3D_MODE_PXL: | |
142 | ||
143 | input_report_rel(dev, REL_X, ((data[ 9] << 6) | (data[10] << 3) | data[11]) - ((data[ 9] & 4) << 7)); | |
144 | input_report_rel(dev, REL_Y, ((data[12] << 6) | (data[13] << 3) | data[14]) - ((data[12] & 4) << 7)); | |
145 | ||
146 | input_report_key(dev, BTN_RIGHT, data[2] & 1); | |
147 | input_report_key(dev, BTN_LEFT, data[3] & 2); | |
148 | input_report_key(dev, BTN_MIDDLE, data[3] & 4); | |
149 | input_report_key(dev, BTN_SIDE, data[7] & 2); | |
150 | input_report_key(dev, BTN_EXTRA, data[7] & 4); | |
151 | ||
152 | input_report_abs(dev, ABS_X, ((signed char)((data[15] << 6) | (data[16] << 3) | (data[17]))) + 128); | |
153 | input_report_abs(dev, ABS_Y, ((signed char)((data[18] << 6) | (data[19] << 3) | (data[20]))) + 128); | |
154 | input_report_abs(dev, ABS_RUDDER, ((signed char)((data[21] << 6) | (data[22] << 3) | (data[23]))) + 128); | |
155 | input_report_abs(dev, ABS_THROTTLE, ((signed char)((data[24] << 6) | (data[25] << 3) | (data[26]))) + 128); | |
156 | ||
157 | input_report_abs(dev, ABS_HAT0X, ( data[5] & 1) - ((data[5] >> 2) & 1)); | |
158 | input_report_abs(dev, ABS_HAT0Y, ((data[5] >> 1) & 1) - ((data[6] >> 2) & 1)); | |
159 | input_report_abs(dev, ABS_HAT1X, ((data[4] >> 1) & 1) - ( data[3] & 1)); | |
160 | input_report_abs(dev, ABS_HAT1Y, ((data[4] >> 2) & 1) - ( data[4] & 1)); | |
161 | ||
162 | input_report_key(dev, BTN_TRIGGER, data[8] & 1); | |
163 | input_report_key(dev, BTN_THUMB, data[8] & 2); | |
164 | input_report_key(dev, BTN_TOP, data[8] & 4); | |
165 | input_report_key(dev, BTN_PINKIE, data[7] & 1); | |
166 | ||
167 | input_sync(dev); | |
168 | ||
169 | break; | |
170 | } | |
171 | } | |
172 | ||
173 | ||
174 | /* | |
175 | * a3d_poll() reads and analyzes A3D joystick data. | |
176 | */ | |
177 | ||
178 | static void a3d_poll(struct gameport *gameport) | |
179 | { | |
180 | struct a3d *a3d = gameport_get_drvdata(gameport); | |
181 | unsigned char data[A3D_MAX_LENGTH]; | |
182 | ||
183 | a3d->reads++; | |
184 | if (a3d_read_packet(a3d->gameport, a3d->length, data) != a3d->length || | |
185 | data[0] != a3d->mode || a3d_csum(data, a3d->length)) | |
ab0c3443 | 186 | a3d->bads++; |
1da177e4 LT |
187 | else |
188 | a3d_read(a3d, data); | |
189 | } | |
190 | ||
191 | /* | |
192 | * a3d_adc_cooked_read() copies the acis and button data to the | |
193 | * callers arrays. It could do the read itself, but the caller could | |
194 | * call this more than 50 times a second, which would use too much CPU. | |
195 | */ | |
196 | ||
197 | static int a3d_adc_cooked_read(struct gameport *gameport, int *axes, int *buttons) | |
198 | { | |
199 | struct a3d *a3d = gameport->port_data; | |
200 | int i; | |
201 | ||
202 | for (i = 0; i < 4; i++) | |
203 | axes[i] = (a3d->axes[i] < 254) ? a3d->axes[i] : -1; | |
204 | *buttons = a3d->buttons; | |
205 | return 0; | |
206 | } | |
207 | ||
208 | /* | |
209 | * a3d_adc_open() is the gameport open routine. It refuses to serve | |
210 | * any but cooked data. | |
211 | */ | |
212 | ||
213 | static int a3d_adc_open(struct gameport *gameport, int mode) | |
214 | { | |
215 | struct a3d *a3d = gameport->port_data; | |
216 | ||
217 | if (mode != GAMEPORT_MODE_COOKED) | |
218 | return -1; | |
219 | ||
220 | gameport_start_polling(a3d->gameport); | |
221 | return 0; | |
222 | } | |
223 | ||
224 | /* | |
225 | * a3d_adc_close() is a callback from the input close routine. | |
226 | */ | |
227 | ||
228 | static void a3d_adc_close(struct gameport *gameport) | |
229 | { | |
230 | struct a3d *a3d = gameport->port_data; | |
231 | ||
232 | gameport_stop_polling(a3d->gameport); | |
233 | } | |
234 | ||
235 | /* | |
236 | * a3d_open() is a callback from the input open routine. | |
237 | */ | |
238 | ||
239 | static int a3d_open(struct input_dev *dev) | |
240 | { | |
8715c1cf | 241 | struct a3d *a3d = input_get_drvdata(dev); |
1da177e4 LT |
242 | |
243 | gameport_start_polling(a3d->gameport); | |
244 | return 0; | |
245 | } | |
246 | ||
247 | /* | |
248 | * a3d_close() is a callback from the input close routine. | |
249 | */ | |
250 | ||
251 | static void a3d_close(struct input_dev *dev) | |
252 | { | |
8715c1cf | 253 | struct a3d *a3d = input_get_drvdata(dev); |
1da177e4 LT |
254 | |
255 | gameport_stop_polling(a3d->gameport); | |
256 | } | |
257 | ||
258 | /* | |
259 | * a3d_connect() probes for A3D joysticks. | |
260 | */ | |
261 | ||
262 | static int a3d_connect(struct gameport *gameport, struct gameport_driver *drv) | |
263 | { | |
264 | struct a3d *a3d; | |
275c6ce2 | 265 | struct input_dev *input_dev; |
1da177e4 LT |
266 | struct gameport *adc; |
267 | unsigned char data[A3D_MAX_LENGTH]; | |
268 | int i; | |
269 | int err; | |
270 | ||
275c6ce2 DT |
271 | a3d = kzalloc(sizeof(struct a3d), GFP_KERNEL); |
272 | input_dev = input_allocate_device(); | |
273 | if (!a3d || !input_dev) { | |
274 | err = -ENOMEM; | |
275 | goto fail1; | |
276 | } | |
1da177e4 | 277 | |
275c6ce2 | 278 | a3d->dev = input_dev; |
1da177e4 LT |
279 | a3d->gameport = gameport; |
280 | ||
281 | gameport_set_drvdata(gameport, a3d); | |
282 | ||
283 | err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW); | |
284 | if (err) | |
285 | goto fail1; | |
286 | ||
287 | i = a3d_read_packet(gameport, A3D_MAX_LENGTH, data); | |
288 | ||
289 | if (!i || a3d_csum(data, i)) { | |
290 | err = -ENODEV; | |
291 | goto fail2; | |
292 | } | |
293 | ||
294 | a3d->mode = data[0]; | |
295 | ||
296 | if (!a3d->mode || a3d->mode > 5) { | |
297 | printk(KERN_WARNING "a3d.c: Unknown A3D device detected " | |
298 | "(%s, id=%d), contact <vojtech@ucw.cz>\n", gameport->phys, a3d->mode); | |
299 | err = -ENODEV; | |
300 | goto fail2; | |
301 | } | |
302 | ||
303 | gameport_set_poll_handler(gameport, a3d_poll); | |
304 | gameport_set_poll_interval(gameport, 20); | |
305 | ||
10ca4c0a | 306 | snprintf(a3d->phys, sizeof(a3d->phys), "%s/input0", gameport->phys); |
1da177e4 | 307 | |
275c6ce2 DT |
308 | input_dev->name = a3d_names[a3d->mode]; |
309 | input_dev->phys = a3d->phys; | |
310 | input_dev->id.bustype = BUS_GAMEPORT; | |
311 | input_dev->id.vendor = GAMEPORT_ID_VENDOR_MADCATZ; | |
312 | input_dev->id.product = a3d->mode; | |
313 | input_dev->id.version = 0x0100; | |
935e658e | 314 | input_dev->dev.parent = &gameport->dev; |
275c6ce2 DT |
315 | input_dev->open = a3d_open; |
316 | input_dev->close = a3d_close; | |
317 | ||
8715c1cf DT |
318 | input_set_drvdata(input_dev, a3d); |
319 | ||
1da177e4 LT |
320 | if (a3d->mode == A3D_MODE_PXL) { |
321 | ||
322 | int axes[] = { ABS_X, ABS_Y, ABS_THROTTLE, ABS_RUDDER }; | |
323 | ||
324 | a3d->length = 33; | |
325 | ||
7b19ada2 JS |
326 | input_dev->evbit[0] |= BIT_MASK(EV_ABS) | BIT_MASK(EV_KEY) | |
327 | BIT_MASK(EV_REL); | |
328 | input_dev->relbit[0] |= BIT_MASK(REL_X) | BIT_MASK(REL_Y); | |
329 | input_dev->absbit[0] |= BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) | | |
330 | BIT_MASK(ABS_THROTTLE) | BIT_MASK(ABS_RUDDER) | | |
331 | BIT_MASK(ABS_HAT0X) | BIT_MASK(ABS_HAT0Y) | | |
332 | BIT_MASK(ABS_HAT1X) | BIT_MASK(ABS_HAT1Y); | |
333 | input_dev->keybit[BIT_WORD(BTN_MOUSE)] |= BIT_MASK(BTN_RIGHT) | | |
334 | BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_MIDDLE) | | |
335 | BIT_MASK(BTN_SIDE) | BIT_MASK(BTN_EXTRA); | |
336 | input_dev->keybit[BIT_WORD(BTN_JOYSTICK)] |= | |
337 | BIT_MASK(BTN_TRIGGER) | BIT_MASK(BTN_THUMB) | | |
338 | BIT_MASK(BTN_TOP) | BIT_MASK(BTN_PINKIE); | |
1da177e4 LT |
339 | |
340 | a3d_read(a3d, data); | |
341 | ||
342 | for (i = 0; i < 4; i++) { | |
343 | if (i < 2) | |
987a6c02 DM |
344 | input_set_abs_params(input_dev, axes[i], |
345 | 48, input_abs_get_val(input_dev, axes[i]) * 2 - 48, 0, 8); | |
1da177e4 | 346 | else |
275c6ce2 DT |
347 | input_set_abs_params(input_dev, axes[i], 2, 253, 0, 0); |
348 | input_set_abs_params(input_dev, ABS_HAT0X + i, -1, 1, 0, 0); | |
1da177e4 LT |
349 | } |
350 | ||
351 | } else { | |
352 | a3d->length = 29; | |
353 | ||
7b19ada2 JS |
354 | input_dev->evbit[0] |= BIT_MASK(EV_KEY) | BIT_MASK(EV_REL); |
355 | input_dev->relbit[0] |= BIT_MASK(REL_X) | BIT_MASK(REL_Y); | |
356 | input_dev->keybit[BIT_WORD(BTN_MOUSE)] |= BIT_MASK(BTN_RIGHT) | | |
357 | BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_MIDDLE); | |
1da177e4 LT |
358 | |
359 | a3d_read(a3d, data); | |
360 | ||
361 | if (!(a3d->adc = adc = gameport_allocate_port())) | |
362 | printk(KERN_ERR "a3d: Not enough memory for ADC port\n"); | |
363 | else { | |
364 | adc->port_data = a3d; | |
365 | adc->open = a3d_adc_open; | |
366 | adc->close = a3d_adc_close; | |
367 | adc->cooked_read = a3d_adc_cooked_read; | |
368 | adc->fuzz = 1; | |
369 | ||
370 | gameport_set_name(adc, a3d_names[a3d->mode]); | |
371 | gameport_set_phys(adc, "%s/gameport0", gameport->phys); | |
372 | adc->dev.parent = &gameport->dev; | |
373 | ||
374 | gameport_register_port(adc); | |
375 | } | |
376 | } | |
377 | ||
275c6ce2 DT |
378 | err = input_register_device(a3d->dev); |
379 | if (err) | |
380 | goto fail3; | |
1da177e4 LT |
381 | |
382 | return 0; | |
383 | ||
275c6ce2 DT |
384 | fail3: if (a3d->adc) |
385 | gameport_unregister_port(a3d->adc); | |
386 | fail2: gameport_close(gameport); | |
387 | fail1: gameport_set_drvdata(gameport, NULL); | |
388 | input_free_device(input_dev); | |
1da177e4 LT |
389 | kfree(a3d); |
390 | return err; | |
391 | } | |
392 | ||
393 | static void a3d_disconnect(struct gameport *gameport) | |
394 | { | |
395 | struct a3d *a3d = gameport_get_drvdata(gameport); | |
396 | ||
275c6ce2 DT |
397 | input_unregister_device(a3d->dev); |
398 | if (a3d->adc) | |
1da177e4 | 399 | gameport_unregister_port(a3d->adc); |
1da177e4 LT |
400 | gameport_close(gameport); |
401 | gameport_set_drvdata(gameport, NULL); | |
402 | kfree(a3d); | |
403 | } | |
404 | ||
405 | static struct gameport_driver a3d_drv = { | |
406 | .driver = { | |
407 | .name = "adc", | |
275c6ce2 | 408 | .owner = THIS_MODULE, |
1da177e4 LT |
409 | }, |
410 | .description = DRIVER_DESC, | |
411 | .connect = a3d_connect, | |
412 | .disconnect = a3d_disconnect, | |
413 | }; | |
414 | ||
98a84131 | 415 | module_gameport_driver(a3d_drv); |