1 /*
2 * $Id: tmdc.c,v 1.31 2002/01/22 20:29:52 vojtech Exp $
3 *
4 * Copyright (c) 1998-2001 Vojtech Pavlik
5 *
6 * Based on the work of:
7 * Trystan Larey-Williams
8 */
9
10 /*
11 * ThrustMaster DirectConnect (BSP) joystick family driver for Linux
12 */
13
14 /*
15 * This program is free software; you can redistribute it and/or modify
16 * it under the terms of the GNU General Public License as published by
17 * the Free Software Foundation; either version 2 of the License, or
18 * (at your option) any later version.
19 *
20 * This program is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 * GNU General Public License for more details.
24 *
25 * You should have received a copy of the GNU General Public License
26 * along with this program; if not, write to the Free Software
27 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
28 *
29 * Should you need to contact me, the author, you can do so either by
30 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
31 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
32 */
33
34 #include <linux/delay.h>
35 #include <linux/kernel.h>
36 #include <linux/slab.h>
37 #include <linux/module.h>
38 #include <linux/init.h>
39 #include <linux/gameport.h>
40 #include <linux/input.h>
41
42 MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
43 MODULE_DESCRIPTION("ThrustMaster DirectConnect joystick driver");
44 MODULE_LICENSE("GPL");
45
46 #define TMDC_MAX_START 400 /* 400 us */
47 #define TMDC_MAX_STROBE 45 /* 45 us */
48 #define TMDC_MAX_LENGTH 13
49 #define TMDC_REFRESH_TIME HZ/50 /* 20 ms */
50
51 #define TMDC_MODE_M3DI 1
52 #define TMDC_MODE_3DRP 3
53 #define TMDC_MODE_AT 4
54 #define TMDC_MODE_FM 8
55 #define TMDC_MODE_FGP 163
56
57 #define TMDC_BYTE_ID 10
58 #define TMDC_BYTE_REV 11
59 #define TMDC_BYTE_DEF 12
60
61 #define TMDC_ABS 7
62 #define TMDC_ABS_HAT 4
63 #define TMDC_BTN 16
64
65 static unsigned char tmdc_byte_a[16] = { 0, 1, 3, 4, 6, 7 };
66 static unsigned char tmdc_byte_d[16] = { 2, 5, 8, 9 };
67
68 static signed char tmdc_abs[TMDC_ABS] =
69 { ABS_X, ABS_Y, ABS_RUDDER, ABS_THROTTLE, ABS_RX, ABS_RY, ABS_RZ };
70 static signed char tmdc_abs_hat[TMDC_ABS_HAT] =
71 { ABS_HAT0X, ABS_HAT0Y, ABS_HAT1X, ABS_HAT1Y };
72 static signed char tmdc_abs_at[TMDC_ABS] =
73 { ABS_X, ABS_Y, ABS_RUDDER, -1, ABS_THROTTLE };
74 static signed char tmdc_abs_fm[TMDC_ABS] =
75 { ABS_RX, ABS_RY, ABS_X, ABS_Y };
76
77 static short tmdc_btn_pad[TMDC_BTN] =
78 { BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z, BTN_START, BTN_SELECT, BTN_TL, BTN_TR };
79 static short tmdc_btn_joy[TMDC_BTN] =
80 { BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE, BTN_BASE2, BTN_THUMB2, BTN_PINKIE,
81 BTN_BASE3, BTN_BASE4, BTN_A, BTN_B, BTN_C, BTN_X, BTN_Y, BTN_Z };
82 static short tmdc_btn_fm[TMDC_BTN] =
83 { BTN_TRIGGER, BTN_C, BTN_B, BTN_A, BTN_THUMB, BTN_X, BTN_Y, BTN_Z, BTN_TOP, BTN_TOP2 };
84 static short tmdc_btn_at[TMDC_BTN] =
85 { BTN_TRIGGER, BTN_THUMB2, BTN_PINKIE, BTN_THUMB, BTN_BASE6, BTN_BASE5, BTN_BASE4,
86 BTN_BASE3, BTN_BASE2, BTN_BASE };
87
88 static struct {
89 int x;
90 int y;
91 } tmdc_hat_to_axis[] = {{ 0, 0}, { 1, 0}, { 0,-1}, {-1, 0}, { 0, 1}};
92
93 struct tmdc {
94 struct gameport *gameport;
95 struct timer_list timer;
96 struct input_dev dev[2];
97 char name[2][64];
98 char phys[2][32];
99 int mode[2];
100 signed char *abs[2];
101 short *btn[2];
102 unsigned char absc[2];
103 unsigned char btnc[2][4];
104 unsigned char btno[2][4];
105 int used;
106 int reads;
107 int bads;
108 unsigned char exists;
109 };
110
111 /*
112 * tmdc_read_packet() reads a ThrustMaster packet.
113 */
114
115 static int tmdc_read_packet(struct gameport *gameport, unsigned char data[2][TMDC_MAX_LENGTH])
116 {
117 unsigned char u, v, w, x;
118 unsigned long flags;
119 int i[2], j[2], t[2], p, k;
120
121 p = gameport_time(gameport, TMDC_MAX_STROBE);
122
123 for (k = 0; k < 2; k++) {
124 t[k] = gameport_time(gameport, TMDC_MAX_START);
125 i[k] = j[k] = 0;
126 }
127
128 local_irq_save(flags);
129 gameport_trigger(gameport);
130
131 w = gameport_read(gameport) >> 4;
132
133 do {
134 x = w;
135 w = gameport_read(gameport) >> 4;
136
137 for (k = 0, v = w, u = x; k < 2; k++, v >>= 2, u >>= 2) {
138 if (~v & u & 2) {
139 if (t[k] <= 0 || i[k] >= TMDC_MAX_LENGTH) continue;
140 t[k] = p;
141 if (j[k] == 0) { /* Start bit */
142 if (~v & 1) t[k] = 0;
143 data[k][i[k]] = 0; j[k]++; continue;
144 }
145 if (j[k] == 9) { /* Stop bit */
146 if (v & 1) t[k] = 0;
147 j[k] = 0; i[k]++; continue;
148 }
149 data[k][i[k]] |= (~v & 1) << (j[k]++ - 1); /* Data bit */
150 }
151 t[k]--;
152 }
153 } while (t[0] > 0 || t[1] > 0);
154
155 local_irq_restore(flags);
156
157 return (i[0] == TMDC_MAX_LENGTH) | ((i[1] == TMDC_MAX_LENGTH) << 1);
158 }
159
160 /*
161 * tmdc_read() reads and analyzes ThrustMaster joystick data.
162 */
163
164 static void tmdc_timer(unsigned long private)
165 {
166 unsigned char data[2][TMDC_MAX_LENGTH];
167 struct tmdc *tmdc = (void *) private;
168 struct input_dev *dev;
169 unsigned char r, bad = 0;
170 int i, j, k, l;
171
172 tmdc->reads++;
173
174 if ((r = tmdc_read_packet(tmdc->gameport, data)) != tmdc->exists)
175 bad = 1;
176 else
177
178 for (j = 0; j < 2; j++)
179 if (r & (1 << j) & tmdc->exists) {
180
181 if (data[j][TMDC_BYTE_ID] != tmdc->mode[j]) {
182 bad = 1;
183 continue;
184 }
185
186 dev = tmdc->dev + j;
187
188 for (i = 0; i < tmdc->absc[j]; i++) {
189 if (tmdc->abs[j][i] < 0) continue;
190 input_report_abs(dev, tmdc->abs[j][i], data[j][tmdc_byte_a[i]]);
191 }
192
193 switch (tmdc->mode[j]) {
194
195 case TMDC_MODE_M3DI:
196
197 i = tmdc_byte_d[0];
198 input_report_abs(dev, ABS_HAT0X, ((data[j][i] >> 3) & 1) - ((data[j][i] >> 1) & 1));
199 input_report_abs(dev, ABS_HAT0Y, ((data[j][i] >> 2) & 1) - ( data[j][i] & 1));
200 break;
201
202 case TMDC_MODE_AT:
203
204 i = tmdc_byte_a[3];
205 input_report_abs(dev, ABS_HAT0X, tmdc_hat_to_axis[(data[j][i] - 141) / 25].x);
206 input_report_abs(dev, ABS_HAT0Y, tmdc_hat_to_axis[(data[j][i] - 141) / 25].y);
207 break;
208
209 }
210
211 for (k = l = 0; k < 4; k++) {
212 for (i = 0; i < tmdc->btnc[j][k]; i++)
213 input_report_key(dev, tmdc->btn[j][i + l],
214 ((data[j][tmdc_byte_d[k]] >> (i + tmdc->btno[j][k])) & 1));
215 l += tmdc->btnc[j][k];
216 }
217
218 input_sync(dev);
219 }
220
221 tmdc->bads += bad;
222
223 mod_timer(&tmdc->timer, jiffies + TMDC_REFRESH_TIME);
224 }
225
226 static int tmdc_open(struct input_dev *dev)
227 {
228 struct tmdc *tmdc = dev->private;
229 if (!tmdc->used++)
230 mod_timer(&tmdc->timer, jiffies + TMDC_REFRESH_TIME);
231 return 0;
232 }
233
234 static void tmdc_close(struct input_dev *dev)
235 {
236 struct tmdc *tmdc = dev->private;
237 if (!--tmdc->used)
238 del_timer(&tmdc->timer);
239 }
240
241 /*
242 * tmdc_probe() probes for ThrustMaster type joysticks.
243 */
244
245 static void tmdc_connect(struct gameport *gameport, struct gameport_dev *dev)
246 {
247 struct models {
248 unsigned char id;
249 char *name;
250 char abs;
251 char hats;
252 char btnc[4];
253 char btno[4];
254 signed char *axes;
255 short *buttons;
256 } models[] = { { 1, "ThrustMaster Millenium 3D Inceptor", 6, 2, { 4, 2 }, { 4, 6 }, tmdc_abs, tmdc_btn_joy },
257 { 3, "ThrustMaster Rage 3D Gamepad", 2, 0, { 8, 2 }, { 0, 0 }, tmdc_abs, tmdc_btn_pad },
258 { 4, "ThrustMaster Attack Throttle", 5, 2, { 4, 6 }, { 4, 2 }, tmdc_abs_at, tmdc_btn_at },
259 { 8, "ThrustMaster FragMaster", 4, 0, { 8, 2 }, { 0, 0 }, tmdc_abs_fm, tmdc_btn_fm },
260 { 163, "Thrustmaster Fusion GamePad", 2, 0, { 8, 2 }, { 0, 0 }, tmdc_abs, tmdc_btn_pad },
261 { 0, "Unknown %d-axis, %d-button TM device %d", 0, 0, { 0, 0 }, { 0, 0 }, tmdc_abs, tmdc_btn_joy }};
262
263 unsigned char data[2][TMDC_MAX_LENGTH];
264 struct tmdc *tmdc;
265 int i, j, k, l, m;
266
267 if (!(tmdc = kmalloc(sizeof(struct tmdc), GFP_KERNEL)))
268 return;
269 memset(tmdc, 0, sizeof(struct tmdc));
270
271 gameport->private = tmdc;
272
273 tmdc->gameport = gameport;
274 init_timer(&tmdc->timer);
275 tmdc->timer.data = (long) tmdc;
276 tmdc->timer.function = tmdc_timer;
277
278 if (gameport_open(gameport, dev, GAMEPORT_MODE_RAW))
279 goto fail1;
280
281 if (!(tmdc->exists = tmdc_read_packet(gameport, data)))
282 goto fail2;
283
284 for (j = 0; j < 2; j++)
285 if (tmdc->exists & (1 << j)) {
286
287 tmdc->mode[j] = data[j][TMDC_BYTE_ID];
288
289 for (m = 0; models[m].id && models[m].id != tmdc->mode[j]; m++);
290
291 tmdc->abs[j] = models[m].axes;
292 tmdc->btn[j] = models[m].buttons;
293
294 if (!models[m].id) {
295 models[m].abs = data[j][TMDC_BYTE_DEF] >> 4;
296 for (k = 0; k < 4; k++)
297 models[m].btnc[k] = k < (data[j][TMDC_BYTE_DEF] & 0xf) ? 8 : 0;
298 }
299
300 tmdc->absc[j] = models[m].abs;
301 for (k = 0; k < 4; k++) {
302 tmdc->btnc[j][k] = models[m].btnc[k];
303 tmdc->btno[j][k] = models[m].btno[k];
304 }
305
306 sprintf(tmdc->name[j], models[m].name, models[m].abs,
307 (data[j][TMDC_BYTE_DEF] & 0xf) << 3, tmdc->mode[j]);
308
309 sprintf(tmdc->phys[j], "%s/input%d", gameport->phys, j);
310
311 tmdc->dev[j].private = tmdc;
312 tmdc->dev[j].open = tmdc_open;
313 tmdc->dev[j].close = tmdc_close;
314
315 tmdc->dev[j].name = tmdc->name[j];
316 tmdc->dev[j].phys = tmdc->phys[j];
317 tmdc->dev[j].id.bustype = BUS_GAMEPORT;
318 tmdc->dev[j].id.vendor = GAMEPORT_ID_VENDOR_THRUSTMASTER;
319 tmdc->dev[j].id.product = models[m].id;
320 tmdc->dev[j].id.version = 0x0100;
321
322 tmdc->dev[j].evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
323
324 for (i = 0; i < models[m].abs && i < TMDC_ABS; i++) {
325 if (tmdc->abs[j][i] < 0) continue;
326 set_bit(tmdc->abs[j][i], tmdc->dev[j].absbit);
327 tmdc->dev[j].absmin[tmdc->abs[j][i]] = 8;
328 tmdc->dev[j].absmax[tmdc->abs[j][i]] = 248;
329 tmdc->dev[j].absfuzz[tmdc->abs[j][i]] = 2;
330 tmdc->dev[j].absflat[tmdc->abs[j][i]] = 4;
331 }
332
333 for (i = 0; i < models[m].hats && i < TMDC_ABS_HAT; i++) {
334 set_bit(tmdc_abs_hat[i], tmdc->dev[j].absbit);
335 tmdc->dev[j].absmin[tmdc_abs_hat[i]] = -1;
336 tmdc->dev[j].absmax[tmdc_abs_hat[i]] = 1;
337 }
338
339 for (k = l = 0; k < 4; k++) {
340 for (i = 0; i < models[m].btnc[k] && i < TMDC_BTN; i++)
341 set_bit(tmdc->btn[j][i + l], tmdc->dev[j].keybit);
342 l += models[m].btnc[k];
343 }
344
345 input_register_device(tmdc->dev + j);
346 printk(KERN_INFO "input: %s on %s\n", tmdc->name[j], gameport->phys);
347 }
348
349 return;
350 fail2: gameport_close(gameport);
351 fail1: kfree(tmdc);
352 }
353
354 static void tmdc_disconnect(struct gameport *gameport)
355 {
356 struct tmdc *tmdc = gameport->private;
357 int i;
358 for (i = 0; i < 2; i++)
359 if (tmdc->exists & (1 << i))
360 input_unregister_device(tmdc->dev + i);
361 gameport_close(gameport);
362 kfree(tmdc);
363 }
364
365 static struct gameport_dev tmdc_dev = {
366 .connect = tmdc_connect,
367 .disconnect = tmdc_disconnect,
368 };
369
370 int __init tmdc_init(void)
371 {
372 gameport_register_device(&tmdc_dev);
373 return 0;
374 }
375
376 void __exit tmdc_exit(void)
377 {
378 gameport_unregister_device(&tmdc_dev);
379 }
380
381 module_init(tmdc_init);
382 module_exit(tmdc_exit);
383
|
This page was automatically generated by the
LXR engine.
|