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