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Merge branch 'akpm' (patches from Andrew)
[linux-2.6/btrfs-unstable.git] / drivers / input / joystick / tmdc.c
blob7e17cde464f0033e0474e6ef72775abd4a256ec6
1 /*
2 * Copyright (c) 1998-2001 Vojtech Pavlik
3 *
4 * Based on the work of:
5 * Trystan Larey-Williams
6 */
7
8 /*
9 * ThrustMaster DirectConnect (BSP) joystick family driver for Linux
10 */
11
12 /*
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 *
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
22 *
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 *
27 * Should you need to contact me, the author, you can do so either by
28 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
29 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
30 */
31
32 #include <linux/delay.h>
33 #include <linux/kernel.h>
34 #include <linux/slab.h>
35 #include <linux/module.h>
36 #include <linux/gameport.h>
37 #include <linux/input.h>
38 #include <linux/jiffies.h>
39
40 #define DRIVER_DESC "ThrustMaster DirectConnect joystick driver"
41
42 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
43 MODULE_DESCRIPTION(DRIVER_DESC);
44 MODULE_LICENSE("GPL");
45
46 #define TMDC_MAX_START 600 /* 600 us */
47 #define TMDC_MAX_STROBE 60 /* 60 us */
48 #define TMDC_MAX_LENGTH 13
49
50 #define TMDC_MODE_M3DI 1
51 #define TMDC_MODE_3DRP 3
52 #define TMDC_MODE_AT 4
53 #define TMDC_MODE_FM 8
54 #define TMDC_MODE_FGP 163
55
56 #define TMDC_BYTE_ID 10
57 #define TMDC_BYTE_REV 11
58 #define TMDC_BYTE_DEF 12
59
60 #define TMDC_ABS 7
61 #define TMDC_ABS_HAT 4
62 #define TMDC_BTN 16
63
64 static const unsigned char tmdc_byte_a[16] = { 0, 1, 3, 4, 6, 7 };
65 static const unsigned char tmdc_byte_d[16] = { 2, 5, 8, 9 };
66
67 static const signed char tmdc_abs[TMDC_ABS] =
68 { ABS_X, ABS_Y, ABS_RUDDER, ABS_THROTTLE, ABS_RX, ABS_RY, ABS_RZ };
69 static const signed char tmdc_abs_hat[TMDC_ABS_HAT] =
70 { ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y };
71 static const signed char tmdc_abs_at[TMDC_ABS] =
72 { ABS_X, ABS_Y, ABS_RUDDER, -1, ABS_THROTTLE };
73 static const signed char tmdc_abs_fm[TMDC_ABS] =
74 { ABS_RX, ABS_RY, ABS_X, ABS_Y };
75
76 static const short tmdc_btn_pad[TMDC_BTN] =
77 { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_START, BTN_SELECT, BTN_TL, BTN_TR };
78 static const short tmdc_btn_joy[TMDC_BTN] =
79 { BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2, BTN_THUMB2, BTN_PINKIE,
80 BTN_BASE3, BTN_BASE4, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z };
81 static const short tmdc_btn_fm[TMDC_BTN] =
82 { BTN_TRIGGER, BTN_C, BTN_B, BTN_A, BTN_THUMB, BTN_X, BTN_Y, BTN_Z, BTN_TOP, BTN_TOP2 };
83 static const short tmdc_btn_at[TMDC_BTN] =
84 { BTN_TRIGGER, BTN_THUMB2, BTN_PINKIE, BTN_THUMB, BTN_BASE6, BTN_BASE5, BTN_BASE4,
85 BTN_BASE3, BTN_BASE2, BTN_BASE };
86
87 static const struct {
88 int x;
89 int y;
90 } tmdc_hat_to_axis[] = {{ 0, 0}, { 1, 0}, { 0,-1}, {-1, 0}, { 0, 1}};
91
92 static const struct tmdc_model {
93 unsigned char id;
94 const char *name;
95 char abs;
96 char hats;
97 char btnc[4];
98 char btno[4];
99 const signed char *axes;
100 const short *buttons;
101 } tmdc_models[] = {
102 { 1, "ThrustMaster Millenium 3D Inceptor", 6, 2, { 4, 2 }, { 4, 6 }, tmdc_abs, tmdc_btn_joy },
103 { 3, "ThrustMaster Rage 3D Gamepad", 2, 0, { 8, 2 }, { 0, 0 }, tmdc_abs, tmdc_btn_pad },
104 { 4, "ThrustMaster Attack Throttle", 5, 2, { 4, 6 }, { 4, 2 }, tmdc_abs_at, tmdc_btn_at },
105 { 8, "ThrustMaster FragMaster", 4, 0, { 8, 2 }, { 0, 0 }, tmdc_abs_fm, tmdc_btn_fm },
106 { 163, "Thrustmaster Fusion GamePad", 2, 0, { 8, 2 }, { 0, 0 }, tmdc_abs, tmdc_btn_pad },
107 { 0, "Unknown %d-axis, %d-button TM device %d", 0, 0, { 0, 0 }, { 0, 0 }, tmdc_abs, tmdc_btn_joy }
108 };
109
110
111 struct tmdc_port {
112 struct input_dev *dev;
113 char name[64];
114 char phys[32];
115 int mode;
116 const signed char *abs;
117 const short *btn;
118 unsigned char absc;
119 unsigned char btnc[4];
120 unsigned char btno[4];
121 };
122
123 struct tmdc {
124 struct gameport *gameport;
125 struct tmdc_port *port[2];
126 #if 0
127 struct input_dev *dev[2];
128 char name[2][64];
129 char phys[2][32];
130 int mode[2];
131 signed char *abs[2];
132 short *btn[2];
133 unsigned char absc[2];
134 unsigned char btnc[2][4];
135 unsigned char btno[2][4];
136 #endif
137 int reads;
138 int bads;
139 unsigned char exists;
140 };
141
142 /*
143 * tmdc_read_packet() reads a ThrustMaster packet.
144 */
145
146 static int tmdc_read_packet(struct gameport *gameport, unsigned char data[2][TMDC_MAX_LENGTH])
147 {
148 unsigned char u, v, w, x;
149 unsigned long flags;
150 int i[2], j[2], t[2], p, k;
151
152 p = gameport_time(gameport, TMDC_MAX_STROBE);
153
154 for (k = 0; k < 2; k++) {
155 t[k] = gameport_time(gameport, TMDC_MAX_START);
156 i[k] = j[k] = 0;
157 }
158
159 local_irq_save(flags);
160 gameport_trigger(gameport);
161
162 w = gameport_read(gameport) >> 4;
163
164 do {
165 x = w;
166 w = gameport_read(gameport) >> 4;
167
168 for (k = 0, v = w, u = x; k < 2; k++, v >>= 2, u >>= 2) {
169 if (~v & u & 2) {
170 if (t[k] <= 0 || i[k] >= TMDC_MAX_LENGTH) continue;
171 t[k] = p;
172 if (j[k] == 0) { /* Start bit */
173 if (~v & 1) t[k] = 0;
174 data[k][i[k]] = 0; j[k]++; continue;
175 }
176 if (j[k] == 9) { /* Stop bit */
177 if (v & 1) t[k] = 0;
178 j[k] = 0; i[k]++; continue;
179 }
180 data[k][i[k]] |= (~v & 1) << (j[k]++ - 1); /* Data bit */
181 }
182 t[k]--;
183 }
184 } while (t[0] > 0 || t[1] > 0);
185
186 local_irq_restore(flags);
187
188 return (i[0] == TMDC_MAX_LENGTH) | ((i[1] == TMDC_MAX_LENGTH) << 1);
189 }
190
191 static int tmdc_parse_packet(struct tmdc_port *port, unsigned char *data)
192 {
193 int i, k, l;
194
195 if (data[TMDC_BYTE_ID] != port->mode)
196 return -1;
197
198 for (i = 0; i < port->absc; i++) {
199 if (port->abs[i] < 0)
200 return 0;
201
202 input_report_abs(port->dev, port->abs[i], data[tmdc_byte_a[i]]);
203 }
204
205 switch (port->mode) {
206
207 case TMDC_MODE_M3DI:
208
209 i = tmdc_byte_d[0];
210 input_report_abs(port->dev, ABS_HAT0X, ((data[i] >> 3) & 1) - ((data[i] >> 1) & 1));
211 input_report_abs(port->dev, ABS_HAT0Y, ((data[i] >> 2) & 1) - ( data[i] & 1));
212 break;
213
214 case TMDC_MODE_AT:
215
216 i = tmdc_byte_a[3];
217 input_report_abs(port->dev, ABS_HAT0X, tmdc_hat_to_axis[(data[i] - 141) / 25].x);
218 input_report_abs(port->dev, ABS_HAT0Y, tmdc_hat_to_axis[(data[i] - 141) / 25].y);
219 break;
220
221 }
222
223 for (k = l = 0; k < 4; k++) {
224 for (i = 0; i < port->btnc[k]; i++)
225 input_report_key(port->dev, port->btn[i + l],
226 ((data[tmdc_byte_d[k]] >> (i + port->btno[k])) & 1));
227 l += port->btnc[k];
228 }
229
230 input_sync(port->dev);
231
232 return 0;
233 }
234
235 /*
236 * tmdc_poll() reads and analyzes ThrustMaster joystick data.
237 */
238
239 static void tmdc_poll(struct gameport *gameport)
240 {
241 unsigned char data[2][TMDC_MAX_LENGTH];
242 struct tmdc *tmdc = gameport_get_drvdata(gameport);
243 unsigned char r, bad = 0;
244 int i;
245
246 tmdc->reads++;
247
248 if ((r = tmdc_read_packet(tmdc->gameport, data)) != tmdc->exists)
249 bad = 1;
250 else {
251 for (i = 0; i < 2; i++) {
252 if (r & (1 << i) & tmdc->exists) {
253
254 if (tmdc_parse_packet(tmdc->port[i], data[i]))
255 bad = 1;
256 }
257 }
258 }
259
260 tmdc->bads += bad;
261 }
262
263 static int tmdc_open(struct input_dev *dev)
264 {
265 struct tmdc *tmdc = input_get_drvdata(dev);
266
267 gameport_start_polling(tmdc->gameport);
268 return 0;
269 }
270
271 static void tmdc_close(struct input_dev *dev)
272 {
273 struct tmdc *tmdc = input_get_drvdata(dev);
274
275 gameport_stop_polling(tmdc->gameport);
276 }
277
278 static int tmdc_setup_port(struct tmdc *tmdc, int idx, unsigned char *data)
279 {
280 const struct tmdc_model *model;
281 struct tmdc_port *port;
282 struct input_dev *input_dev;
283 int i, j, b = 0;
284 int err;
285
286 tmdc->port[idx] = port = kzalloc(sizeof (struct tmdc_port), GFP_KERNEL);
287 input_dev = input_allocate_device();
288 if (!port || !input_dev) {
289 err = -ENOMEM;
290 goto fail;
291 }
292
293 port->mode = data[TMDC_BYTE_ID];
294
295 for (model = tmdc_models; model->id && model->id != port->mode; model++)
296 /* empty */;
297
298 port->abs = model->axes;
299 port->btn = model->buttons;
300
301 if (!model->id) {
302 port->absc = data[TMDC_BYTE_DEF] >> 4;
303 for (i = 0; i < 4; i++)
304 port->btnc[i] = i < (data[TMDC_BYTE_DEF] & 0xf) ? 8 : 0;
305 } else {
306 port->absc = model->abs;
307 for (i = 0; i < 4; i++)
308 port->btnc[i] = model->btnc[i];
309 }
310
311 for (i = 0; i < 4; i++)
312 port->btno[i] = model->btno[i];
313
314 snprintf(port->name, sizeof(port->name), model->name,
315 port->absc, (data[TMDC_BYTE_DEF] & 0xf) << 3, port->mode);
316 snprintf(port->phys, sizeof(port->phys), "%s/input%d", tmdc->gameport->phys, i);
317
318 port->dev = input_dev;
319
320 input_dev->name = port->name;
321 input_dev->phys = port->phys;
322 input_dev->id.bustype = BUS_GAMEPORT;
323 input_dev->id.vendor = GAMEPORT_ID_VENDOR_THRUSTMASTER;
324 input_dev->id.product = model->id;
325 input_dev->id.version = 0x0100;
326 input_dev->dev.parent = &tmdc->gameport->dev;
327
328 input_set_drvdata(input_dev, tmdc);
329
330 input_dev->open = tmdc_open;
331 input_dev->close = tmdc_close;
332
333 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
334
335 for (i = 0; i < port->absc && i < TMDC_ABS; i++)
336 if (port->abs[i] >= 0)
337 input_set_abs_params(input_dev, port->abs[i], 8, 248, 2, 4);
338
339 for (i = 0; i < model->hats && i < TMDC_ABS_HAT; i++)
340 input_set_abs_params(input_dev, tmdc_abs_hat[i], -1, 1, 0, 0);
341
342 for (i = 0; i < 4; i++) {
343 for (j = 0; j < port->btnc[i] && j < TMDC_BTN; j++)
344 set_bit(port->btn[j + b], input_dev->keybit);
345 b += port->btnc[i];
346 }
347
348 err = input_register_device(port->dev);
349 if (err)
350 goto fail;
351
352 return 0;
353
354 fail: input_free_device(input_dev);
355 kfree(port);
356 return err;
357 }
358
359 /*
360 * tmdc_probe() probes for ThrustMaster type joysticks.
361 */
362
363 static int tmdc_connect(struct gameport *gameport, struct gameport_driver *drv)
364 {
365 unsigned char data[2][TMDC_MAX_LENGTH];
366 struct tmdc *tmdc;
367 int i;
368 int err;
369
370 if (!(tmdc = kzalloc(sizeof(struct tmdc), GFP_KERNEL)))
371 return -ENOMEM;
372
373 tmdc->gameport = gameport;
374
375 gameport_set_drvdata(gameport, tmdc);
376
377 err = gameport_open(gameport, drv, GAMEPORT_MODE_RAW);
378 if (err)
379 goto fail1;
380
381 if (!(tmdc->exists = tmdc_read_packet(gameport, data))) {
382 err = -ENODEV;
383 goto fail2;
384 }
385
386 gameport_set_poll_handler(gameport, tmdc_poll);
387 gameport_set_poll_interval(gameport, 20);
388
389 for (i = 0; i < 2; i++) {
390 if (tmdc->exists & (1 << i)) {
391
392 err = tmdc_setup_port(tmdc, i, data[i]);
393 if (err)
394 goto fail3;
395 }
396 }
397
398 return 0;
399
400 fail3: while (--i >= 0) {
401 if (tmdc->port[i]) {
402 input_unregister_device(tmdc->port[i]->dev);
403 kfree(tmdc->port[i]);
404 }
405 }
406 fail2: gameport_close(gameport);
407 fail1: gameport_set_drvdata(gameport, NULL);
408 kfree(tmdc);
409 return err;
410 }
411
412 static void tmdc_disconnect(struct gameport *gameport)
413 {
414 struct tmdc *tmdc = gameport_get_drvdata(gameport);
415 int i;
416
417 for (i = 0; i < 2; i++) {
418 if (tmdc->port[i]) {
419 input_unregister_device(tmdc->port[i]->dev);
420 kfree(tmdc->port[i]);
421 }
422 }
423 gameport_close(gameport);
424 gameport_set_drvdata(gameport, NULL);
425 kfree(tmdc);
426 }
427
428 static struct gameport_driver tmdc_drv = {
429 .driver = {
430 .name = "tmdc",
431 .owner = THIS_MODULE,
432 },
433 .description = DRIVER_DESC,
434 .connect = tmdc_connect,
435 .disconnect = tmdc_disconnect,
436 };
437
438 module_gameport_driver(tmdc_drv);
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