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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/input/joystick/iforce
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'drivers/input/joystick/iforce')
-rw-r--r--drivers/input/joystick/iforce/Kconfig32
-rw-r--r--drivers/input/joystick/iforce/Makefile20
-rw-r--r--drivers/input/joystick/iforce/iforce-ff.c543
-rw-r--r--drivers/input/joystick/iforce/iforce-main.c557
-rw-r--r--drivers/input/joystick/iforce/iforce-packets.c319
-rw-r--r--drivers/input/joystick/iforce/iforce-serio.c193
-rw-r--r--drivers/input/joystick/iforce/iforce-usb.c243
-rw-r--r--drivers/input/joystick/iforce/iforce.h191
8 files changed, 2098 insertions, 0 deletions
diff --git a/drivers/input/joystick/iforce/Kconfig b/drivers/input/joystick/iforce/Kconfig
new file mode 100644
index 00000000000..8fde22a021b
--- /dev/null
+++ b/drivers/input/joystick/iforce/Kconfig
@@ -0,0 +1,32 @@
1#
2# I-Force driver configuration
3#
4config JOYSTICK_IFORCE
5 tristate "I-Force devices"
6 depends on INPUT && INPUT_JOYSTICK
7 help
8 Say Y here if you have an I-Force joystick or steering wheel
9
10 You also must choose at least one of the two options below.
11
12 To compile this driver as a module, choose M here: the
13 module will be called iforce.
14
15config JOYSTICK_IFORCE_USB
16 bool "I-Force USB joysticks and wheels"
17 depends on JOYSTICK_IFORCE && (JOYSTICK_IFORCE=m || USB=y) && USB
18 help
19 Say Y here if you have an I-Force joystick or steering wheel
20 connected to your USB port.
21
22config JOYSTICK_IFORCE_232
23 bool "I-Force Serial joysticks and wheels"
24 depends on JOYSTICK_IFORCE && (JOYSTICK_IFORCE=m || SERIO=y) && SERIO
25 help
26 Say Y here if you have an I-Force joystick or steering wheel
27 connected to your serial (COM) port.
28
29 You will need an additional utility called inputattach, see
30 <file:Documentation/input/joystick.txt>
31 and <file:Documentation/input/ff.txt>.
32
diff --git a/drivers/input/joystick/iforce/Makefile b/drivers/input/joystick/iforce/Makefile
new file mode 100644
index 00000000000..17ae42bf9ff
--- /dev/null
+++ b/drivers/input/joystick/iforce/Makefile
@@ -0,0 +1,20 @@
1#
2# Makefile for the I-Force driver
3#
4# By Johann Deneux <deneux@ifrance.com>
5#
6
7# Goal definition
8iforce-objs := iforce-ff.o iforce-main.o iforce-packets.o
9
10obj-$(CONFIG_JOYSTICK_IFORCE) += iforce.o
11
12ifeq ($(CONFIG_JOYSTICK_IFORCE_232),y)
13 iforce-objs += iforce-serio.o
14endif
15
16ifeq ($(CONFIG_JOYSTICK_IFORCE_USB),y)
17 iforce-objs += iforce-usb.o
18endif
19
20EXTRA_CFLAGS = -Werror-implicit-function-declaration
diff --git a/drivers/input/joystick/iforce/iforce-ff.c b/drivers/input/joystick/iforce/iforce-ff.c
new file mode 100644
index 00000000000..4678b6dab43
--- /dev/null
+++ b/drivers/input/joystick/iforce/iforce-ff.c
@@ -0,0 +1,543 @@
1/*
2 * $Id: iforce-ff.c,v 1.9 2002/02/02 19:28:35 jdeneux Exp $
3 *
4 * Copyright (c) 2000-2002 Vojtech Pavlik <vojtech@ucw.cz>
5 * Copyright (c) 2001-2002 Johann Deneux <deneux@ifrance.com>
6 *
7 * USB/RS232 I-Force joysticks and wheels.
8 */
9
10/*
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 *
25 * Should you need to contact me, the author, you can do so either by
26 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
27 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
28 */
29
30#include "iforce.h"
31
32/*
33 * Set the magnitude of a constant force effect
34 * Return error code
35 *
36 * Note: caller must ensure exclusive access to device
37 */
38
39static int make_magnitude_modifier(struct iforce* iforce,
40 struct resource* mod_chunk, int no_alloc, __s16 level)
41{
42 unsigned char data[3];
43
44 if (!no_alloc) {
45 down(&iforce->mem_mutex);
46 if (allocate_resource(&(iforce->device_memory), mod_chunk, 2,
47 iforce->device_memory.start, iforce->device_memory.end, 2L,
48 NULL, NULL)) {
49 up(&iforce->mem_mutex);
50 return -ENOMEM;
51 }
52 up(&iforce->mem_mutex);
53 }
54
55 data[0] = LO(mod_chunk->start);
56 data[1] = HI(mod_chunk->start);
57 data[2] = HIFIX80(level);
58
59 iforce_send_packet(iforce, FF_CMD_MAGNITUDE, data);
60
61 iforce_dump_packet("magnitude: ", FF_CMD_MAGNITUDE, data);
62 return 0;
63}
64
65/*
66 * Upload the component of an effect dealing with the period, phase and magnitude
67 */
68
69static int make_period_modifier(struct iforce* iforce,
70 struct resource* mod_chunk, int no_alloc,
71 __s16 magnitude, __s16 offset, u16 period, u16 phase)
72{
73 unsigned char data[7];
74
75 period = TIME_SCALE(period);
76
77 if (!no_alloc) {
78 down(&iforce->mem_mutex);
79 if (allocate_resource(&(iforce->device_memory), mod_chunk, 0x0c,
80 iforce->device_memory.start, iforce->device_memory.end, 2L,
81 NULL, NULL)) {
82 up(&iforce->mem_mutex);
83 return -ENOMEM;
84 }
85 up(&iforce->mem_mutex);
86 }
87
88 data[0] = LO(mod_chunk->start);
89 data[1] = HI(mod_chunk->start);
90
91 data[2] = HIFIX80(magnitude);
92 data[3] = HIFIX80(offset);
93 data[4] = HI(phase);
94
95 data[5] = LO(period);
96 data[6] = HI(period);
97
98 iforce_send_packet(iforce, FF_CMD_PERIOD, data);
99
100 return 0;
101}
102
103/*
104 * Uploads the part of an effect setting the envelope of the force
105 */
106
107static int make_envelope_modifier(struct iforce* iforce,
108 struct resource* mod_chunk, int no_alloc,
109 u16 attack_duration, __s16 initial_level,
110 u16 fade_duration, __s16 final_level)
111{
112 unsigned char data[8];
113
114 attack_duration = TIME_SCALE(attack_duration);
115 fade_duration = TIME_SCALE(fade_duration);
116
117 if (!no_alloc) {
118 down(&iforce->mem_mutex);
119 if (allocate_resource(&(iforce->device_memory), mod_chunk, 0x0e,
120 iforce->device_memory.start, iforce->device_memory.end, 2L,
121 NULL, NULL)) {
122 up(&iforce->mem_mutex);
123 return -ENOMEM;
124 }
125 up(&iforce->mem_mutex);
126 }
127
128 data[0] = LO(mod_chunk->start);
129 data[1] = HI(mod_chunk->start);
130
131 data[2] = LO(attack_duration);
132 data[3] = HI(attack_duration);
133 data[4] = HI(initial_level);
134
135 data[5] = LO(fade_duration);
136 data[6] = HI(fade_duration);
137 data[7] = HI(final_level);
138
139 iforce_send_packet(iforce, FF_CMD_ENVELOPE, data);
140
141 return 0;
142}
143
144/*
145 * Component of spring, friction, inertia... effects
146 */
147
148static int make_condition_modifier(struct iforce* iforce,
149 struct resource* mod_chunk, int no_alloc,
150 __u16 rsat, __u16 lsat, __s16 rk, __s16 lk, u16 db, __s16 center)
151{
152 unsigned char data[10];
153
154 if (!no_alloc) {
155 down(&iforce->mem_mutex);
156 if (allocate_resource(&(iforce->device_memory), mod_chunk, 8,
157 iforce->device_memory.start, iforce->device_memory.end, 2L,
158 NULL, NULL)) {
159 up(&iforce->mem_mutex);
160 return -ENOMEM;
161 }
162 up(&iforce->mem_mutex);
163 }
164
165 data[0] = LO(mod_chunk->start);
166 data[1] = HI(mod_chunk->start);
167
168 data[2] = (100*rk)>>15; /* Dangerous: the sign is extended by gcc on plateforms providing an arith shift */
169 data[3] = (100*lk)>>15; /* This code is incorrect on cpus lacking arith shift */
170
171 center = (500*center)>>15;
172 data[4] = LO(center);
173 data[5] = HI(center);
174
175 db = (1000*db)>>16;
176 data[6] = LO(db);
177 data[7] = HI(db);
178
179 data[8] = (100*rsat)>>16;
180 data[9] = (100*lsat)>>16;
181
182 iforce_send_packet(iforce, FF_CMD_CONDITION, data);
183 iforce_dump_packet("condition", FF_CMD_CONDITION, data);
184
185 return 0;
186}
187
188static unsigned char find_button(struct iforce *iforce, signed short button)
189{
190 int i;
191 for (i = 1; iforce->type->btn[i] >= 0; i++)
192 if (iforce->type->btn[i] == button)
193 return i + 1;
194 return 0;
195}
196
197/*
198 * Analyse the changes in an effect, and tell if we need to send an condition
199 * parameter packet
200 */
201static int need_condition_modifier(struct iforce* iforce, struct ff_effect* new)
202{
203 int id = new->id;
204 struct ff_effect* old = &iforce->core_effects[id].effect;
205 int ret=0;
206 int i;
207
208 if (new->type != FF_SPRING && new->type != FF_FRICTION) {
209 printk(KERN_WARNING "iforce.c: bad effect type in need_condition_modifier\n");
210 return FALSE;
211 }
212
213 for(i=0; i<2; i++) {
214 ret |= old->u.condition[i].right_saturation != new->u.condition[i].right_saturation
215 || old->u.condition[i].left_saturation != new->u.condition[i].left_saturation
216 || old->u.condition[i].right_coeff != new->u.condition[i].right_coeff
217 || old->u.condition[i].left_coeff != new->u.condition[i].left_coeff
218 || old->u.condition[i].deadband != new->u.condition[i].deadband
219 || old->u.condition[i].center != new->u.condition[i].center;
220 }
221 return ret;
222}
223
224/*
225 * Analyse the changes in an effect, and tell if we need to send a magnitude
226 * parameter packet
227 */
228static int need_magnitude_modifier(struct iforce* iforce, struct ff_effect* effect)
229{
230 int id = effect->id;
231 struct ff_effect* old = &iforce->core_effects[id].effect;
232
233 if (effect->type != FF_CONSTANT) {
234 printk(KERN_WARNING "iforce.c: bad effect type in need_envelope_modifier\n");
235 return FALSE;
236 }
237
238 return (old->u.constant.level != effect->u.constant.level);
239}
240
241/*
242 * Analyse the changes in an effect, and tell if we need to send an envelope
243 * parameter packet
244 */
245static int need_envelope_modifier(struct iforce* iforce, struct ff_effect* effect)
246{
247 int id = effect->id;
248 struct ff_effect* old = &iforce->core_effects[id].effect;
249
250 switch (effect->type) {
251 case FF_CONSTANT:
252 if (old->u.constant.envelope.attack_length != effect->u.constant.envelope.attack_length
253 || old->u.constant.envelope.attack_level != effect->u.constant.envelope.attack_level
254 || old->u.constant.envelope.fade_length != effect->u.constant.envelope.fade_length
255 || old->u.constant.envelope.fade_level != effect->u.constant.envelope.fade_level)
256 return TRUE;
257 break;
258
259 case FF_PERIODIC:
260 if (old->u.periodic.envelope.attack_length != effect->u.periodic.envelope.attack_length
261 || old->u.periodic.envelope.attack_level != effect->u.periodic.envelope.attack_level
262 || old->u.periodic.envelope.fade_length != effect->u.periodic.envelope.fade_length
263 || old->u.periodic.envelope.fade_level != effect->u.periodic.envelope.fade_level)
264 return TRUE;
265 break;
266
267 default:
268 printk(KERN_WARNING "iforce.c: bad effect type in need_envelope_modifier\n");
269 }
270
271 return FALSE;
272}
273
274/*
275 * Analyse the changes in an effect, and tell if we need to send a periodic
276 * parameter effect
277 */
278static int need_period_modifier(struct iforce* iforce, struct ff_effect* new)
279{
280 int id = new->id;
281 struct ff_effect* old = &iforce->core_effects[id].effect;
282
283 if (new->type != FF_PERIODIC) {
284 printk(KERN_WARNING "iforce.c: bad effect type in need_periodic_modifier\n");
285 return FALSE;
286 }
287
288 return (old->u.periodic.period != new->u.periodic.period
289 || old->u.periodic.magnitude != new->u.periodic.magnitude
290 || old->u.periodic.offset != new->u.periodic.offset
291 || old->u.periodic.phase != new->u.periodic.phase);
292}
293
294/*
295 * Analyse the changes in an effect, and tell if we need to send an effect
296 * packet
297 */
298static int need_core(struct iforce* iforce, struct ff_effect* new)
299{
300 int id = new->id;
301 struct ff_effect* old = &iforce->core_effects[id].effect;
302
303 if (old->direction != new->direction
304 || old->trigger.button != new->trigger.button
305 || old->trigger.interval != new->trigger.interval
306 || old->replay.length != new->replay.length
307 || old->replay.delay != new->replay.delay)
308 return TRUE;
309
310 return FALSE;
311}
312/*
313 * Send the part common to all effects to the device
314 */
315static int make_core(struct iforce* iforce, u16 id, u16 mod_id1, u16 mod_id2,
316 u8 effect_type, u8 axes, u16 duration, u16 delay, u16 button,
317 u16 interval, u16 direction)
318{
319 unsigned char data[14];
320
321 duration = TIME_SCALE(duration);
322 delay = TIME_SCALE(delay);
323 interval = TIME_SCALE(interval);
324
325 data[0] = LO(id);
326 data[1] = effect_type;
327 data[2] = LO(axes) | find_button(iforce, button);
328
329 data[3] = LO(duration);
330 data[4] = HI(duration);
331
332 data[5] = HI(direction);
333
334 data[6] = LO(interval);
335 data[7] = HI(interval);
336
337 data[8] = LO(mod_id1);
338 data[9] = HI(mod_id1);
339 data[10] = LO(mod_id2);
340 data[11] = HI(mod_id2);
341
342 data[12] = LO(delay);
343 data[13] = HI(delay);
344
345 /* Stop effect */
346/* iforce_control_playback(iforce, id, 0);*/
347
348 iforce_send_packet(iforce, FF_CMD_EFFECT, data);
349
350 /* If needed, restart effect */
351 if (test_bit(FF_CORE_SHOULD_PLAY, iforce->core_effects[id].flags)) {
352 /* BUG: perhaps we should replay n times, instead of 1. But we do not know n */
353 iforce_control_playback(iforce, id, 1);
354 }
355
356 return 0;
357}
358
359/*
360 * Upload a periodic effect to the device
361 * See also iforce_upload_constant.
362 */
363int iforce_upload_periodic(struct iforce* iforce, struct ff_effect* effect, int is_update)
364{
365 u8 wave_code;
366 int core_id = effect->id;
367 struct iforce_core_effect* core_effect = iforce->core_effects + core_id;
368 struct resource* mod1_chunk = &(iforce->core_effects[core_id].mod1_chunk);
369 struct resource* mod2_chunk = &(iforce->core_effects[core_id].mod2_chunk);
370 int param1_err = 1;
371 int param2_err = 1;
372 int core_err = 0;
373
374 if (!is_update || need_period_modifier(iforce, effect)) {
375 param1_err = make_period_modifier(iforce, mod1_chunk,
376 is_update,
377 effect->u.periodic.magnitude, effect->u.periodic.offset,
378 effect->u.periodic.period, effect->u.periodic.phase);
379 if (param1_err) return param1_err;
380 set_bit(FF_MOD1_IS_USED, core_effect->flags);
381 }
382
383 if (!is_update || need_envelope_modifier(iforce, effect)) {
384 param2_err = make_envelope_modifier(iforce, mod2_chunk,
385 is_update,
386 effect->u.periodic.envelope.attack_length,
387 effect->u.periodic.envelope.attack_level,
388 effect->u.periodic.envelope.fade_length,
389 effect->u.periodic.envelope.fade_level);
390 if (param2_err) return param2_err;
391 set_bit(FF_MOD2_IS_USED, core_effect->flags);
392 }
393
394 switch (effect->u.periodic.waveform) {
395 case FF_SQUARE: wave_code = 0x20; break;
396 case FF_TRIANGLE: wave_code = 0x21; break;
397 case FF_SINE: wave_code = 0x22; break;
398 case FF_SAW_UP: wave_code = 0x23; break;
399 case FF_SAW_DOWN: wave_code = 0x24; break;
400 default: wave_code = 0x20; break;
401 }
402
403 if (!is_update || need_core(iforce, effect)) {
404 core_err = make_core(iforce, effect->id,
405 mod1_chunk->start,
406 mod2_chunk->start,
407 wave_code,
408 0x20,
409 effect->replay.length,
410 effect->replay.delay,
411 effect->trigger.button,
412 effect->trigger.interval,
413 effect->direction);
414 }
415
416 /* If one of the parameter creation failed, we already returned an
417 * error code.
418 * If the core creation failed, we return its error code.
419 * Else: if one parameter at least was created, we return 0
420 * else we return 1;
421 */
422 return core_err < 0 ? core_err : (param1_err && param2_err);
423}
424
425/*
426 * Upload a constant force effect
427 * Return value:
428 * <0 Error code
429 * 0 Ok, effect created or updated
430 * 1 effect did not change since last upload, and no packet was therefore sent
431 */
432int iforce_upload_constant(struct iforce* iforce, struct ff_effect* effect, int is_update)
433{
434 int core_id = effect->id;
435 struct iforce_core_effect* core_effect = iforce->core_effects + core_id;
436 struct resource* mod1_chunk = &(iforce->core_effects[core_id].mod1_chunk);
437 struct resource* mod2_chunk = &(iforce->core_effects[core_id].mod2_chunk);
438 int param1_err = 1;
439 int param2_err = 1;
440 int core_err = 0;
441
442 if (!is_update || need_magnitude_modifier(iforce, effect)) {
443 param1_err = make_magnitude_modifier(iforce, mod1_chunk,
444 is_update,
445 effect->u.constant.level);
446 if (param1_err) return param1_err;
447 set_bit(FF_MOD1_IS_USED, core_effect->flags);
448 }
449
450 if (!is_update || need_envelope_modifier(iforce, effect)) {
451 param2_err = make_envelope_modifier(iforce, mod2_chunk,
452 is_update,
453 effect->u.constant.envelope.attack_length,
454 effect->u.constant.envelope.attack_level,
455 effect->u.constant.envelope.fade_length,
456 effect->u.constant.envelope.fade_level);
457 if (param2_err) return param2_err;
458 set_bit(FF_MOD2_IS_USED, core_effect->flags);
459 }
460
461 if (!is_update || need_core(iforce, effect)) {
462 core_err = make_core(iforce, effect->id,
463 mod1_chunk->start,
464 mod2_chunk->start,
465 0x00,
466 0x20,
467 effect->replay.length,
468 effect->replay.delay,
469 effect->trigger.button,
470 effect->trigger.interval,
471 effect->direction);
472 }
473
474 /* If one of the parameter creation failed, we already returned an
475 * error code.
476 * If the core creation failed, we return its error code.
477 * Else: if one parameter at least was created, we return 0
478 * else we return 1;
479 */
480 return core_err < 0 ? core_err : (param1_err && param2_err);
481}
482
483/*
484 * Upload an condition effect. Those are for example friction, inertia, springs...
485 */
486int iforce_upload_condition(struct iforce* iforce, struct ff_effect* effect, int is_update)
487{
488 int core_id = effect->id;
489 struct iforce_core_effect* core_effect = iforce->core_effects + core_id;
490 struct resource* mod1_chunk = &(core_effect->mod1_chunk);
491 struct resource* mod2_chunk = &(core_effect->mod2_chunk);
492 u8 type;
493 int param_err = 1;
494 int core_err = 0;
495
496 switch (effect->type) {
497 case FF_SPRING: type = 0x40; break;
498 case FF_DAMPER: type = 0x41; break;
499 default: return -1;
500 }
501
502 if (!is_update || need_condition_modifier(iforce, effect)) {
503 param_err = make_condition_modifier(iforce, mod1_chunk,
504 is_update,
505 effect->u.condition[0].right_saturation,
506 effect->u.condition[0].left_saturation,
507 effect->u.condition[0].right_coeff,
508 effect->u.condition[0].left_coeff,
509 effect->u.condition[0].deadband,
510 effect->u.condition[0].center);
511 if (param_err) return param_err;
512 set_bit(FF_MOD1_IS_USED, core_effect->flags);
513
514 param_err = make_condition_modifier(iforce, mod2_chunk,
515 is_update,
516 effect->u.condition[1].right_saturation,
517 effect->u.condition[1].left_saturation,
518 effect->u.condition[1].right_coeff,
519 effect->u.condition[1].left_coeff,
520 effect->u.condition[1].deadband,
521 effect->u.condition[1].center);
522 if (param_err) return param_err;
523 set_bit(FF_MOD2_IS_USED, core_effect->flags);
524
525 }
526
527 if (!is_update || need_core(iforce, effect)) {
528 core_err = make_core(iforce, effect->id,
529 mod1_chunk->start, mod2_chunk->start,
530 type, 0xc0,
531 effect->replay.length, effect->replay.delay,
532 effect->trigger.button, effect->trigger.interval,
533 effect->direction);
534 }
535
536 /* If the parameter creation failed, we already returned an
537 * error code.
538 * If the core creation failed, we return its error code.
539 * Else: if a parameter was created, we return 0
540 * else we return 1;
541 */
542 return core_err < 0 ? core_err : param_err;
543}
diff --git a/drivers/input/joystick/iforce/iforce-main.c b/drivers/input/joystick/iforce/iforce-main.c
new file mode 100644
index 00000000000..028f3513629
--- /dev/null
+++ b/drivers/input/joystick/iforce/iforce-main.c
@@ -0,0 +1,557 @@
1/*
2 * $Id: iforce-main.c,v 1.19 2002/07/07 10:22:50 jdeneux Exp $
3 *
4 * Copyright (c) 2000-2002 Vojtech Pavlik <vojtech@ucw.cz>
5 * Copyright (c) 2001-2002 Johann Deneux <deneux@ifrance.com>
6 *
7 * USB/RS232 I-Force joysticks and wheels.
8 */
9
10/*
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 *
25 * Should you need to contact me, the author, you can do so either by
26 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
27 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
28 */
29
30#include "iforce.h"
31
32MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>, Johann Deneux <deneux@ifrance.com>");
33MODULE_DESCRIPTION("USB/RS232 I-Force joysticks and wheels driver");
34MODULE_LICENSE("GPL");
35
36static signed short btn_joystick[] =
37{ BTN_TRIGGER, BTN_TOP, BTN_THUMB, BTN_TOP2, BTN_BASE,
38 BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_BASE5, BTN_A, BTN_B, BTN_C, -1 };
39
40static signed short btn_avb_pegasus[] =
41{ BTN_TRIGGER, BTN_TOP, BTN_THUMB, BTN_TOP2, BTN_BASE,
42 BTN_BASE2, BTN_BASE3, BTN_BASE4, -1 };
43
44static signed short btn_wheel[] =
45{ BTN_TRIGGER, BTN_TOP, BTN_THUMB, BTN_TOP2, BTN_BASE,
46 BTN_BASE2, BTN_BASE3, BTN_BASE4, BTN_BASE5, BTN_A, BTN_B, BTN_C, -1 };
47
48static signed short btn_avb_tw[] =
49{ BTN_TRIGGER, BTN_THUMB, BTN_TOP, BTN_TOP2, BTN_BASE,
50 BTN_BASE2, BTN_BASE3, BTN_BASE4, -1 };
51
52static signed short btn_avb_wheel[] =
53{ BTN_GEAR_DOWN, BTN_GEAR_UP, BTN_BASE, BTN_BASE2, BTN_BASE3,
54 BTN_BASE4, BTN_BASE5, BTN_BASE6, -1 };
55
56static signed short abs_joystick[] =
57{ ABS_X, ABS_Y, ABS_THROTTLE, ABS_HAT0X, ABS_HAT0Y, -1 };
58
59static signed short abs_avb_pegasus[] =
60{ ABS_X, ABS_Y, ABS_THROTTLE, ABS_RUDDER, ABS_HAT0X, ABS_HAT0Y,
61 ABS_HAT1X, ABS_HAT1Y, -1 };
62
63static signed short abs_wheel[] =
64{ ABS_WHEEL, ABS_GAS, ABS_BRAKE, ABS_HAT0X, ABS_HAT0Y, -1 };
65
66static signed short ff_iforce[] =
67{ FF_PERIODIC, FF_CONSTANT, FF_SPRING, FF_DAMPER,
68 FF_SQUARE, FF_TRIANGLE, FF_SINE, FF_SAW_UP, FF_SAW_DOWN, FF_GAIN,
69 FF_AUTOCENTER, -1 };
70
71static struct iforce_device iforce_device[] = {
72 { 0x044f, 0xa01c, "Thrustmaster Motor Sport GT", btn_wheel, abs_wheel, ff_iforce },
73 { 0x046d, 0xc281, "Logitech WingMan Force", btn_joystick, abs_joystick, ff_iforce },
74 { 0x046d, 0xc291, "Logitech WingMan Formula Force", btn_wheel, abs_wheel, ff_iforce },
75 { 0x05ef, 0x020a, "AVB Top Shot Pegasus", btn_avb_pegasus, abs_avb_pegasus, ff_iforce },
76 { 0x05ef, 0x8884, "AVB Mag Turbo Force", btn_avb_wheel, abs_wheel, ff_iforce },
77 { 0x05ef, 0x8888, "AVB Top Shot Force Feedback Racing Wheel", btn_avb_tw, abs_wheel, ff_iforce }, //?
78 { 0x061c, 0xc0a4, "ACT LABS Force RS", btn_wheel, abs_wheel, ff_iforce }, //?
79 { 0x06f8, 0x0001, "Guillemot Race Leader Force Feedback", btn_wheel, abs_wheel, ff_iforce }, //?
80 { 0x06f8, 0x0004, "Guillemot Force Feedback Racing Wheel", btn_wheel, abs_wheel, ff_iforce }, //?
81 { 0x0000, 0x0000, "Unknown I-Force Device [%04x:%04x]", btn_joystick, abs_joystick, ff_iforce }
82};
83
84
85
86static int iforce_input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
87{
88 struct iforce* iforce = (struct iforce*)(dev->private);
89 unsigned char data[3];
90
91 if (type != EV_FF)
92 return -1;
93
94 switch (code) {
95
96 case FF_GAIN:
97
98 data[0] = value >> 9;
99 iforce_send_packet(iforce, FF_CMD_GAIN, data);
100
101 return 0;
102
103 case FF_AUTOCENTER:
104
105 data[0] = 0x03;
106 data[1] = value >> 9;
107 iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
108
109 data[0] = 0x04;
110 data[1] = 0x01;
111 iforce_send_packet(iforce, FF_CMD_AUTOCENTER, data);
112
113 return 0;
114
115 default: /* Play or stop an effect */
116
117 if (!CHECK_OWNERSHIP(code, iforce)) {
118 return -1;
119 }
120 if (value > 0) {
121 set_bit(FF_CORE_SHOULD_PLAY, iforce->core_effects[code].flags);
122 }
123 else {
124 clear_bit(FF_CORE_SHOULD_PLAY, iforce->core_effects[code].flags);
125 }
126
127 iforce_control_playback(iforce, code, value);
128 return 0;
129 }
130
131 return -1;
132}
133
134/*
135 * Function called when an ioctl is performed on the event dev entry.
136 * It uploads an effect to the device
137 */
138static int iforce_upload_effect(struct input_dev *dev, struct ff_effect *effect)
139{
140 struct iforce* iforce = (struct iforce*)(dev->private);
141 int id;
142 int ret;
143 int is_update;
144
145/* Check this effect type is supported by this device */
146 if (!test_bit(effect->type, iforce->dev.ffbit))
147 return -EINVAL;
148
149/*
150 * If we want to create a new effect, get a free id
151 */
152 if (effect->id == -1) {
153
154 for (id=0; id < FF_EFFECTS_MAX; ++id)
155 if (!test_and_set_bit(FF_CORE_IS_USED, iforce->core_effects[id].flags)) break;
156
157 if ( id == FF_EFFECTS_MAX || id >= iforce->dev.ff_effects_max)
158 return -ENOMEM;
159
160 effect->id = id;
161 iforce->core_effects[id].owner = current->pid;
162 iforce->core_effects[id].flags[0] = (1<<FF_CORE_IS_USED); /* Only IS_USED bit must be set */
163
164 is_update = FALSE;
165 }
166 else {
167 /* We want to update an effect */
168 if (!CHECK_OWNERSHIP(effect->id, iforce)) return -EACCES;
169
170 /* Parameter type cannot be updated */
171 if (effect->type != iforce->core_effects[effect->id].effect.type)
172 return -EINVAL;
173
174 /* Check the effect is not already being updated */
175 if (test_bit(FF_CORE_UPDATE, iforce->core_effects[effect->id].flags)) {
176 return -EAGAIN;
177 }
178
179 is_update = TRUE;
180 }
181
182/*
183 * Upload the effect
184 */
185 switch (effect->type) {
186
187 case FF_PERIODIC:
188 ret = iforce_upload_periodic(iforce, effect, is_update);
189 break;
190
191 case FF_CONSTANT:
192 ret = iforce_upload_constant(iforce, effect, is_update);
193 break;
194
195 case FF_SPRING:
196 case FF_DAMPER:
197 ret = iforce_upload_condition(iforce, effect, is_update);
198 break;
199
200 default:
201 return -EINVAL;
202 }
203 if (ret == 0) {
204 /* A packet was sent, forbid new updates until we are notified
205 * that the packet was updated
206 */
207 set_bit(FF_CORE_UPDATE, iforce->core_effects[effect->id].flags);
208 }
209 iforce->core_effects[effect->id].effect = *effect;
210 return ret;
211}
212
213/*
214 * Erases an effect: it frees the effect id and mark as unused the memory
215 * allocated for the parameters
216 */
217static int iforce_erase_effect(struct input_dev *dev, int effect_id)
218{
219 struct iforce* iforce = (struct iforce*)(dev->private);
220 int err = 0;
221 struct iforce_core_effect* core_effect;
222
223 /* Check who is trying to erase this effect */
224 if (iforce->core_effects[effect_id].owner != current->pid) {
225 printk(KERN_WARNING "iforce-main.c: %d tried to erase an effect belonging to %d\n", current->pid, iforce->core_effects[effect_id].owner);
226 return -EACCES;
227 }
228
229 if (effect_id < 0 || effect_id >= FF_EFFECTS_MAX)
230 return -EINVAL;
231
232 core_effect = iforce->core_effects + effect_id;
233
234 if (test_bit(FF_MOD1_IS_USED, core_effect->flags))
235 err = release_resource(&(iforce->core_effects[effect_id].mod1_chunk));
236
237 if (!err && test_bit(FF_MOD2_IS_USED, core_effect->flags))
238 err = release_resource(&(iforce->core_effects[effect_id].mod2_chunk));
239
240 /*TODO: remember to change that if more FF_MOD* bits are added */
241 core_effect->flags[0] = 0;
242
243 return err;
244}
245
246static int iforce_open(struct input_dev *dev)
247{
248 struct iforce *iforce = dev->private;
249
250 switch (iforce->bus) {
251#ifdef CONFIG_JOYSTICK_IFORCE_USB
252 case IFORCE_USB:
253 iforce->irq->dev = iforce->usbdev;
254 if (usb_submit_urb(iforce->irq, GFP_KERNEL))
255 return -EIO;
256 break;
257#endif
258 }
259
260 /* Enable force feedback */
261 iforce_send_packet(iforce, FF_CMD_ENABLE, "\004");
262
263 return 0;
264}
265
266static int iforce_flush(struct input_dev *dev, struct file *file)
267{
268 struct iforce *iforce = dev->private;
269 int i;
270
271 /* Erase all effects this process owns */
272 for (i=0; i<dev->ff_effects_max; ++i) {
273
274 if (test_bit(FF_CORE_IS_USED, iforce->core_effects[i].flags) &&
275 current->pid == iforce->core_effects[i].owner) {
276
277 /* Stop effect */
278 input_report_ff(dev, i, 0);
279
280 /* Free ressources assigned to effect */
281 if (iforce_erase_effect(dev, i)) {
282 printk(KERN_WARNING "iforce_flush: erase effect %d failed\n", i);
283 }
284 }
285
286 }
287 return 0;
288}
289
290static void iforce_release(struct input_dev *dev)
291{
292 struct iforce *iforce = dev->private;
293 int i;
294
295 /* Check: no effect should be present in memory */
296 for (i=0; i<dev->ff_effects_max; ++i) {
297 if (test_bit(FF_CORE_IS_USED, iforce->core_effects[i].flags))
298 break;
299 }
300 if (i<dev->ff_effects_max) {
301 printk(KERN_WARNING "iforce_release: Device still owns effects\n");
302 }
303
304 /* Disable force feedback playback */
305 iforce_send_packet(iforce, FF_CMD_ENABLE, "\001");
306
307 switch (iforce->bus) {
308#ifdef CONFIG_JOYSTICK_IFORCE_USB
309 case IFORCE_USB:
310 usb_unlink_urb(iforce->irq);
311
312 /* The device was unplugged before the file
313 * was released */
314 if (iforce->usbdev == NULL) {
315 iforce_delete_device(iforce);
316 kfree(iforce);
317 }
318 break;
319#endif
320 }
321}
322
323void iforce_delete_device(struct iforce *iforce)
324{
325 switch (iforce->bus) {
326#ifdef CONFIG_JOYSTICK_IFORCE_USB
327 case IFORCE_USB:
328 iforce_usb_delete(iforce);
329 break;
330#endif
331#ifdef CONFIG_JOYSTICK_IFORCE_232
332 case IFORCE_232:
333 //TODO: Wait for the last packets to be sent
334 break;
335#endif
336 }
337}
338
339int iforce_init_device(struct iforce *iforce)
340{
341 unsigned char c[] = "CEOV";
342 int i;
343
344 init_waitqueue_head(&iforce->wait);
345 spin_lock_init(&iforce->xmit_lock);
346 init_MUTEX(&iforce->mem_mutex);
347 iforce->xmit.buf = iforce->xmit_data;
348
349 iforce->dev.ff_effects_max = 10;
350
351/*
352 * Input device fields.
353 */
354
355 switch (iforce->bus) {
356#ifdef CONFIG_JOYSTICK_IFORCE_USB
357 case IFORCE_USB:
358 iforce->dev.id.bustype = BUS_USB;
359 iforce->dev.dev = &iforce->usbdev->dev;
360 break;
361#endif
362#ifdef CONFIG_JOYSTICK_IFORCE_232
363 case IFORCE_232:
364 iforce->dev.id.bustype = BUS_RS232;
365 iforce->dev.dev = &iforce->serio->dev;
366 break;
367#endif
368 }
369
370 iforce->dev.private = iforce;
371 iforce->dev.name = "Unknown I-Force device";
372 iforce->dev.open = iforce_open;
373 iforce->dev.close = iforce_release;
374 iforce->dev.flush = iforce_flush;
375 iforce->dev.event = iforce_input_event;
376 iforce->dev.upload_effect = iforce_upload_effect;
377 iforce->dev.erase_effect = iforce_erase_effect;
378
379/*
380 * On-device memory allocation.
381 */
382
383 iforce->device_memory.name = "I-Force device effect memory";
384 iforce->device_memory.start = 0;
385 iforce->device_memory.end = 200;
386 iforce->device_memory.flags = IORESOURCE_MEM;
387 iforce->device_memory.parent = NULL;
388 iforce->device_memory.child = NULL;
389 iforce->device_memory.sibling = NULL;
390
391/*
392 * Wait until device ready - until it sends its first response.
393 */
394
395 for (i = 0; i < 20; i++)
396 if (!iforce_get_id_packet(iforce, "O"))
397 break;
398
399 if (i == 20) { /* 5 seconds */
400 printk(KERN_ERR "iforce-main.c: Timeout waiting for response from device.\n");
401 return -1;
402 }
403
404/*
405 * Get device info.
406 */
407
408 if (!iforce_get_id_packet(iforce, "M"))
409 iforce->dev.id.vendor = (iforce->edata[2] << 8) | iforce->edata[1];
410 else
411 printk(KERN_WARNING "iforce-main.c: Device does not respond to id packet M\n");
412
413 if (!iforce_get_id_packet(iforce, "P"))
414 iforce->dev.id.product = (iforce->edata[2] << 8) | iforce->edata[1];
415 else
416 printk(KERN_WARNING "iforce-main.c: Device does not respond to id packet P\n");
417
418 if (!iforce_get_id_packet(iforce, "B"))
419 iforce->device_memory.end = (iforce->edata[2] << 8) | iforce->edata[1];
420 else
421 printk(KERN_WARNING "iforce-main.c: Device does not respond to id packet B\n");
422
423 if (!iforce_get_id_packet(iforce, "N"))
424 iforce->dev.ff_effects_max = iforce->edata[1];
425 else
426 printk(KERN_WARNING "iforce-main.c: Device does not respond to id packet N\n");
427
428 /* Check if the device can store more effects than the driver can really handle */
429 if (iforce->dev.ff_effects_max > FF_EFFECTS_MAX) {
430 printk(KERN_WARNING "input??: Device can handle %d effects, but N_EFFECTS_MAX is set to %d in iforce.h\n",
431 iforce->dev.ff_effects_max, FF_EFFECTS_MAX);
432 iforce->dev.ff_effects_max = FF_EFFECTS_MAX;
433 }
434
435/*
436 * Display additional info.
437 */
438
439 for (i = 0; c[i]; i++)
440 if (!iforce_get_id_packet(iforce, c + i))
441 iforce_dump_packet("info", iforce->ecmd, iforce->edata);
442
443/*
444 * Disable spring, enable force feedback.
445 * FIXME: We should use iforce_set_autocenter() et al here.
446 */
447
448 iforce_send_packet(iforce, FF_CMD_AUTOCENTER, "\004\000");
449
450/*
451 * Find appropriate device entry
452 */
453
454 for (i = 0; iforce_device[i].idvendor; i++)
455 if (iforce_device[i].idvendor == iforce->dev.id.vendor &&
456 iforce_device[i].idproduct == iforce->dev.id.product)
457 break;
458
459 iforce->type = iforce_device + i;
460 iforce->dev.name = iforce->type->name;
461
462/*
463 * Set input device bitfields and ranges.
464 */
465
466 iforce->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_ABS) | BIT(EV_FF) | BIT(EV_FF_STATUS);
467
468 for (i = 0; iforce->type->btn[i] >= 0; i++) {
469 signed short t = iforce->type->btn[i];
470 set_bit(t, iforce->dev.keybit);
471 }
472 set_bit(BTN_DEAD, iforce->dev.keybit);
473
474 for (i = 0; iforce->type->abs[i] >= 0; i++) {
475
476 signed short t = iforce->type->abs[i];
477 set_bit(t, iforce->dev.absbit);
478
479 switch (t) {
480
481 case ABS_X:
482 case ABS_Y:
483 case ABS_WHEEL:
484
485 iforce->dev.absmax[t] = 1920;
486 iforce->dev.absmin[t] = -1920;
487 iforce->dev.absflat[t] = 128;
488 iforce->dev.absfuzz[t] = 16;
489
490 set_bit(t, iforce->dev.ffbit);
491 break;
492
493 case ABS_THROTTLE:
494 case ABS_GAS:
495 case ABS_BRAKE:
496
497 iforce->dev.absmax[t] = 255;
498 iforce->dev.absmin[t] = 0;
499 break;
500
501 case ABS_RUDDER:
502
503 iforce->dev.absmax[t] = 127;
504 iforce->dev.absmin[t] = -128;
505 break;
506
507 case ABS_HAT0X:
508 case ABS_HAT0Y:
509 case ABS_HAT1X:
510 case ABS_HAT1Y:
511 iforce->dev.absmax[t] = 1;
512 iforce->dev.absmin[t] = -1;
513 break;
514 }
515 }
516
517 for (i = 0; iforce->type->ff[i] >= 0; i++)
518 set_bit(iforce->type->ff[i], iforce->dev.ffbit);
519
520/*
521 * Register input device.
522 */
523
524 input_register_device(&iforce->dev);
525
526 printk(KERN_DEBUG "iforce->dev.open = %p\n", iforce->dev.open);
527
528 printk(KERN_INFO "input: %s [%d effects, %ld bytes memory]\n",
529 iforce->dev.name, iforce->dev.ff_effects_max,
530 iforce->device_memory.end);
531
532 return 0;
533}
534
535static int __init iforce_init(void)
536{
537#ifdef CONFIG_JOYSTICK_IFORCE_USB
538 usb_register(&iforce_usb_driver);
539#endif
540#ifdef CONFIG_JOYSTICK_IFORCE_232
541 serio_register_driver(&iforce_serio_drv);
542#endif
543 return 0;
544}
545
546static void __exit iforce_exit(void)
547{
548#ifdef CONFIG_JOYSTICK_IFORCE_USB
549 usb_deregister(&iforce_usb_driver);
550#endif
551#ifdef CONFIG_JOYSTICK_IFORCE_232
552 serio_unregister_driver(&iforce_serio_drv);
553#endif
554}
555
556module_init(iforce_init);
557module_exit(iforce_exit);
diff --git a/drivers/input/joystick/iforce/iforce-packets.c b/drivers/input/joystick/iforce/iforce-packets.c
new file mode 100644
index 00000000000..58728ebaaf8
--- /dev/null
+++ b/drivers/input/joystick/iforce/iforce-packets.c
@@ -0,0 +1,319 @@
1/*
2 * $Id: iforce-packets.c,v 1.16 2002/07/07 10:22:50 jdeneux Exp $
3 *
4 * Copyright (c) 2000-2002 Vojtech Pavlik <vojtech@ucw.cz>
5 * Copyright (c) 2001-2002 Johann Deneux <deneux@ifrance.com>
6 *
7 * USB/RS232 I-Force joysticks and wheels.
8 */
9
10/*
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 *
25 * Should you need to contact me, the author, you can do so either by
26 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
27 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
28 */
29
30#include "iforce.h"
31
32static struct {
33 __s32 x;
34 __s32 y;
35} iforce_hat_to_axis[16] = {{ 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
36
37
38void iforce_dump_packet(char *msg, u16 cmd, unsigned char *data)
39{
40 int i;
41
42 printk(KERN_DEBUG "iforce.c: %s ( cmd = %04x, data = ", msg, cmd);
43 for (i = 0; i < LO(cmd); i++)
44 printk("%02x ", data[i]);
45 printk(")\n");
46}
47
48/*
49 * Send a packet of bytes to the device
50 */
51int iforce_send_packet(struct iforce *iforce, u16 cmd, unsigned char* data)
52{
53 /* Copy data to buffer */
54 int n = LO(cmd);
55 int c;
56 int empty;
57 int head, tail;
58 unsigned long flags;
59
60/*
61 * Update head and tail of xmit buffer
62 */
63 spin_lock_irqsave(&iforce->xmit_lock, flags);
64
65 head = iforce->xmit.head;
66 tail = iforce->xmit.tail;
67
68 if (CIRC_SPACE(head, tail, XMIT_SIZE) < n+2) {
69 printk(KERN_WARNING "iforce.c: not enough space in xmit buffer to send new packet\n");
70 spin_unlock_irqrestore(&iforce->xmit_lock, flags);
71 return -1;
72 }
73
74 empty = head == tail;
75 XMIT_INC(iforce->xmit.head, n+2);
76
77/*
78 * Store packet in xmit buffer
79 */
80 iforce->xmit.buf[head] = HI(cmd);
81 XMIT_INC(head, 1);
82 iforce->xmit.buf[head] = LO(cmd);
83 XMIT_INC(head, 1);
84
85 c = CIRC_SPACE_TO_END(head, tail, XMIT_SIZE);
86 if (n < c) c=n;
87
88 memcpy(&iforce->xmit.buf[head],
89 data,
90 c);
91 if (n != c) {
92 memcpy(&iforce->xmit.buf[0],
93 data + c,
94 n - c);
95 }
96 XMIT_INC(head, n);
97
98 spin_unlock_irqrestore(&iforce->xmit_lock, flags);
99/*
100 * If necessary, start the transmission
101 */
102 switch (iforce->bus) {
103
104#ifdef CONFIG_JOYSTICK_IFORCE_232
105 case IFORCE_232:
106 if (empty)
107 iforce_serial_xmit(iforce);
108 break;
109#endif
110#ifdef CONFIG_JOYSTICK_IFORCE_USB
111 case IFORCE_USB:
112
113 if (iforce->usbdev && empty &&
114 !test_and_set_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags)) {
115
116 iforce_usb_xmit(iforce);
117 }
118 break;
119#endif
120 }
121 return 0;
122}
123
124/* Start or stop an effect */
125int iforce_control_playback(struct iforce* iforce, u16 id, unsigned int value)
126{
127 unsigned char data[3];
128
129printk(KERN_DEBUG "iforce-packets.c: control_playback %d %d\n", id, value);
130
131 data[0] = LO(id);
132 data[1] = (value > 0) ? ((value > 1) ? 0x41 : 0x01) : 0;
133 data[2] = LO(value);
134 return iforce_send_packet(iforce, FF_CMD_PLAY, data);
135}
136
137/* Mark an effect that was being updated as ready. That means it can be updated
138 * again */
139static int mark_core_as_ready(struct iforce *iforce, unsigned short addr)
140{
141 int i;
142 for (i=0; i<iforce->dev.ff_effects_max; ++i) {
143 if (test_bit(FF_CORE_IS_USED, iforce->core_effects[i].flags) &&
144 (iforce->core_effects[i].mod1_chunk.start == addr ||
145 iforce->core_effects[i].mod2_chunk.start == addr)) {
146 clear_bit(FF_CORE_UPDATE, iforce->core_effects[i].flags);
147 return 0;
148 }
149 }
150 printk(KERN_WARNING "iforce-packets.c: unused effect %04x updated !!!\n", addr);
151 return -1;
152}
153
154void iforce_process_packet(struct iforce *iforce, u16 cmd, unsigned char *data, struct pt_regs *regs)
155{
156 struct input_dev *dev = &iforce->dev;
157 int i;
158 static int being_used = 0;
159
160 if (being_used)
161 printk(KERN_WARNING "iforce-packets.c: re-entrant call to iforce_process %d\n", being_used);
162 being_used++;
163
164#ifdef CONFIG_JOYSTICK_IFORCE_232
165 if (HI(iforce->expect_packet) == HI(cmd)) {
166 iforce->expect_packet = 0;
167 iforce->ecmd = cmd;
168 memcpy(iforce->edata, data, IFORCE_MAX_LENGTH);
169 wake_up(&iforce->wait);
170 }
171#endif
172
173 if (!iforce->type) {
174 being_used--;
175 return;
176 }
177
178 switch (HI(cmd)) {
179
180 case 0x01: /* joystick position data */
181 case 0x03: /* wheel position data */
182
183 input_regs(dev, regs);
184
185 if (HI(cmd) == 1) {
186 input_report_abs(dev, ABS_X, (__s16) (((__s16)data[1] << 8) | data[0]));
187 input_report_abs(dev, ABS_Y, (__s16) (((__s16)data[3] << 8) | data[2]));
188 input_report_abs(dev, ABS_THROTTLE, 255 - data[4]);
189 if (LO(cmd) >= 8 && test_bit(ABS_RUDDER ,dev->absbit))
190 input_report_abs(dev, ABS_RUDDER, (__s8)data[7]);
191 } else {
192 input_report_abs(dev, ABS_WHEEL, (__s16) (((__s16)data[1] << 8) | data[0]));
193 input_report_abs(dev, ABS_GAS, 255 - data[2]);
194 input_report_abs(dev, ABS_BRAKE, 255 - data[3]);
195 }
196
197 input_report_abs(dev, ABS_HAT0X, iforce_hat_to_axis[data[6] >> 4].x);
198 input_report_abs(dev, ABS_HAT0Y, iforce_hat_to_axis[data[6] >> 4].y);
199
200 for (i = 0; iforce->type->btn[i] >= 0; i++)
201 input_report_key(dev, iforce->type->btn[i], data[(i >> 3) + 5] & (1 << (i & 7)));
202
203 /* If there are untouched bits left, interpret them as the second hat */
204 if (i <= 8) {
205 int btns = data[6];
206 if (test_bit(ABS_HAT1X, dev->absbit)) {
207 if (btns & 8) input_report_abs(dev, ABS_HAT1X, -1);
208 else if (btns & 2) input_report_abs(dev, ABS_HAT1X, 1);
209 else input_report_abs(dev, ABS_HAT1X, 0);
210 }
211 if (test_bit(ABS_HAT1Y, dev->absbit)) {
212 if (btns & 1) input_report_abs(dev, ABS_HAT1Y, -1);
213 else if (btns & 4) input_report_abs(dev, ABS_HAT1Y, 1);
214 else input_report_abs(dev, ABS_HAT1Y, 0);
215 }
216 }
217
218 input_sync(dev);
219
220 break;
221
222 case 0x02: /* status report */
223 input_regs(dev, regs);
224 input_report_key(dev, BTN_DEAD, data[0] & 0x02);
225 input_sync(dev);
226
227 /* Check if an effect was just started or stopped */
228 i = data[1] & 0x7f;
229 if (data[1] & 0x80) {
230 if (!test_and_set_bit(FF_CORE_IS_PLAYED, iforce->core_effects[i].flags)) {
231 /* Report play event */
232 input_report_ff_status(dev, i, FF_STATUS_PLAYING);
233 }
234 }
235 else if (test_and_clear_bit(FF_CORE_IS_PLAYED, iforce->core_effects[i].flags)) {
236 /* Report stop event */
237 input_report_ff_status(dev, i, FF_STATUS_STOPPED);
238 }
239 if (LO(cmd) > 3) {
240 int j;
241 for (j=3; j<LO(cmd); j+=2) {
242 mark_core_as_ready(iforce, data[j] | (data[j+1]<<8));
243 }
244 }
245 break;
246 }
247 being_used--;
248}
249
250int iforce_get_id_packet(struct iforce *iforce, char *packet)
251{
252 DECLARE_WAITQUEUE(wait, current);
253 int timeout = HZ; /* 1 second */
254
255 switch (iforce->bus) {
256
257 case IFORCE_USB:
258
259#ifdef CONFIG_JOYSTICK_IFORCE_USB
260 iforce->cr.bRequest = packet[0];
261 iforce->ctrl->dev = iforce->usbdev;
262
263 set_current_state(TASK_INTERRUPTIBLE);
264 add_wait_queue(&iforce->wait, &wait);
265
266 if (usb_submit_urb(iforce->ctrl, GFP_ATOMIC)) {
267 set_current_state(TASK_RUNNING);
268 remove_wait_queue(&iforce->wait, &wait);
269 return -1;
270 }
271
272 while (timeout && iforce->ctrl->status == -EINPROGRESS)
273 timeout = schedule_timeout(timeout);
274
275 set_current_state(TASK_RUNNING);
276 remove_wait_queue(&iforce->wait, &wait);
277
278 if (!timeout) {
279 usb_unlink_urb(iforce->ctrl);
280 return -1;
281 }
282#else
283 printk(KERN_ERR "iforce_get_id_packet: iforce->bus = USB!\n");
284#endif
285 break;
286
287 case IFORCE_232:
288
289#ifdef CONFIG_JOYSTICK_IFORCE_232
290 iforce->expect_packet = FF_CMD_QUERY;
291 iforce_send_packet(iforce, FF_CMD_QUERY, packet);
292
293 set_current_state(TASK_INTERRUPTIBLE);
294 add_wait_queue(&iforce->wait, &wait);
295
296 while (timeout && iforce->expect_packet)
297 timeout = schedule_timeout(timeout);
298
299 set_current_state(TASK_RUNNING);
300 remove_wait_queue(&iforce->wait, &wait);
301
302 if (!timeout) {
303 iforce->expect_packet = 0;
304 return -1;
305 }
306#else
307 printk(KERN_ERR "iforce_get_id_packet: iforce->bus = SERIO!\n");
308#endif
309 break;
310
311 default:
312 printk(KERN_ERR "iforce_get_id_packet: iforce->bus = %d\n",
313 iforce->bus);
314 break;
315 }
316
317 return -(iforce->edata[0] != packet[0]);
318}
319
diff --git a/drivers/input/joystick/iforce/iforce-serio.c b/drivers/input/joystick/iforce/iforce-serio.c
new file mode 100644
index 00000000000..11f51905cba
--- /dev/null
+++ b/drivers/input/joystick/iforce/iforce-serio.c
@@ -0,0 +1,193 @@
1/*
2 * $Id: iforce-serio.c,v 1.4 2002/01/28 22:45:00 jdeneux Exp $
3 *
4 * Copyright (c) 2000-2001 Vojtech Pavlik <vojtech@ucw.cz>
5 * Copyright (c) 2001 Johann Deneux <deneux@ifrance.com>
6 *
7 * USB/RS232 I-Force joysticks and wheels.
8 */
9
10/*
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 *
25 * Should you need to contact me, the author, you can do so either by
26 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
27 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
28 */
29
30#include "iforce.h"
31
32void iforce_serial_xmit(struct iforce *iforce)
33{
34 unsigned char cs;
35 int i;
36 unsigned long flags;
37
38 if (test_and_set_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags)) {
39 set_bit(IFORCE_XMIT_AGAIN, iforce->xmit_flags);
40 return;
41 }
42
43 spin_lock_irqsave(&iforce->xmit_lock, flags);
44
45again:
46 if (iforce->xmit.head == iforce->xmit.tail) {
47 clear_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags);
48 spin_unlock_irqrestore(&iforce->xmit_lock, flags);
49 return;
50 }
51
52 cs = 0x2b;
53
54 serio_write(iforce->serio, 0x2b);
55
56 serio_write(iforce->serio, iforce->xmit.buf[iforce->xmit.tail]);
57 cs ^= iforce->xmit.buf[iforce->xmit.tail];
58 XMIT_INC(iforce->xmit.tail, 1);
59
60 for (i=iforce->xmit.buf[iforce->xmit.tail]; i >= 0; --i) {
61 serio_write(iforce->serio, iforce->xmit.buf[iforce->xmit.tail]);
62 cs ^= iforce->xmit.buf[iforce->xmit.tail];
63 XMIT_INC(iforce->xmit.tail, 1);
64 }
65
66 serio_write(iforce->serio, cs);
67
68 if (test_and_clear_bit(IFORCE_XMIT_AGAIN, iforce->xmit_flags))
69 goto again;
70
71 clear_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags);
72
73 spin_unlock_irqrestore(&iforce->xmit_lock, flags);
74}
75
76static void iforce_serio_write_wakeup(struct serio *serio)
77{
78 struct iforce *iforce = serio_get_drvdata(serio);
79
80 iforce_serial_xmit(iforce);
81}
82
83static irqreturn_t iforce_serio_irq(struct serio *serio,
84 unsigned char data, unsigned int flags, struct pt_regs *regs)
85{
86 struct iforce *iforce = serio_get_drvdata(serio);
87
88 if (!iforce->pkt) {
89 if (data == 0x2b)
90 iforce->pkt = 1;
91 goto out;
92 }
93
94 if (!iforce->id) {
95 if (data > 3 && data != 0xff)
96 iforce->pkt = 0;
97 else
98 iforce->id = data;
99 goto out;
100 }
101
102 if (!iforce->len) {
103 if (data > IFORCE_MAX_LENGTH) {
104 iforce->pkt = 0;
105 iforce->id = 0;
106 } else {
107 iforce->len = data;
108 }
109 goto out;
110 }
111
112 if (iforce->idx < iforce->len) {
113 iforce->csum += iforce->data[iforce->idx++] = data;
114 goto out;
115 }
116
117 if (iforce->idx == iforce->len) {
118 iforce_process_packet(iforce, (iforce->id << 8) | iforce->idx, iforce->data, regs);
119 iforce->pkt = 0;
120 iforce->id = 0;
121 iforce->len = 0;
122 iforce->idx = 0;
123 iforce->csum = 0;
124 }
125out:
126 return IRQ_HANDLED;
127}
128
129static int iforce_serio_connect(struct serio *serio, struct serio_driver *drv)
130{
131 struct iforce *iforce;
132 int err;
133
134 if (!(iforce = kmalloc(sizeof(struct iforce), GFP_KERNEL)))
135 return -ENOMEM;
136
137 memset(iforce, 0, sizeof(struct iforce));
138
139 iforce->bus = IFORCE_232;
140 iforce->serio = serio;
141
142 serio_set_drvdata(serio, iforce);
143
144 err = serio_open(serio, drv);
145 if (err) {
146 serio_set_drvdata(serio, NULL);
147 kfree(iforce);
148 return err;
149 }
150
151 if (iforce_init_device(iforce)) {
152 serio_close(serio);
153 serio_set_drvdata(serio, NULL);
154 kfree(iforce);
155 return -ENODEV;
156 }
157
158 return 0;
159}
160
161static void iforce_serio_disconnect(struct serio *serio)
162{
163 struct iforce *iforce = serio_get_drvdata(serio);
164
165 input_unregister_device(&iforce->dev);
166 serio_close(serio);
167 serio_set_drvdata(serio, NULL);
168 kfree(iforce);
169}
170
171static struct serio_device_id iforce_serio_ids[] = {
172 {
173 .type = SERIO_RS232,
174 .proto = SERIO_IFORCE,
175 .id = SERIO_ANY,
176 .extra = SERIO_ANY,
177 },
178 { 0 }
179};
180
181MODULE_DEVICE_TABLE(serio, iforce_serio_ids);
182
183struct serio_driver iforce_serio_drv = {
184 .driver = {
185 .name = "iforce",
186 },
187 .description = "RS232 I-Force joysticks and wheels driver",
188 .id_table = iforce_serio_ids,
189 .write_wakeup = iforce_serio_write_wakeup,
190 .interrupt = iforce_serio_irq,
191 .connect = iforce_serio_connect,
192 .disconnect = iforce_serio_disconnect,
193};
diff --git a/drivers/input/joystick/iforce/iforce-usb.c b/drivers/input/joystick/iforce/iforce-usb.c
new file mode 100644
index 00000000000..617c0b0e5a3
--- /dev/null
+++ b/drivers/input/joystick/iforce/iforce-usb.c
@@ -0,0 +1,243 @@
1 /*
2 * $Id: iforce-usb.c,v 1.16 2002/06/09 11:08:04 jdeneux Exp $
3 *
4 * Copyright (c) 2000-2002 Vojtech Pavlik <vojtech@ucw.cz>
5 * Copyright (c) 2001-2002 Johann Deneux <deneux@ifrance.com>
6 *
7 * USB/RS232 I-Force joysticks and wheels.
8 */
9
10/*
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 *
25 * Should you need to contact me, the author, you can do so either by
26 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
27 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
28 */
29
30#include "iforce.h"
31
32void iforce_usb_xmit(struct iforce *iforce)
33{
34 int n, c;
35 unsigned long flags;
36
37 spin_lock_irqsave(&iforce->xmit_lock, flags);
38
39 if (iforce->xmit.head == iforce->xmit.tail) {
40 clear_bit(IFORCE_XMIT_RUNNING, iforce->xmit_flags);
41 spin_unlock_irqrestore(&iforce->xmit_lock, flags);
42 return;
43 }
44
45 ((char *)iforce->out->transfer_buffer)[0] = iforce->xmit.buf[iforce->xmit.tail];
46 XMIT_INC(iforce->xmit.tail, 1);
47 n = iforce->xmit.buf[iforce->xmit.tail];
48 XMIT_INC(iforce->xmit.tail, 1);
49
50 iforce->out->transfer_buffer_length = n + 1;
51 iforce->out->dev = iforce->usbdev;
52
53 /* Copy rest of data then */
54 c = CIRC_CNT_TO_END(iforce->xmit.head, iforce->xmit.tail, XMIT_SIZE);
55 if (n < c) c=n;
56
57 memcpy(iforce->out->transfer_buffer + 1,
58 &iforce->xmit.buf[iforce->xmit.tail],
59 c);
60 if (n != c) {
61 memcpy(iforce->out->transfer_buffer + 1 + c,
62 &iforce->xmit.buf[0],
63 n-c);
64 }
65 XMIT_INC(iforce->xmit.tail, n);
66
67 if ( (n=usb_submit_urb(iforce->out, GFP_ATOMIC)) ) {
68 printk(KERN_WARNING "iforce-usb.c: iforce_usb_xmit: usb_submit_urb failed %d\n", n);
69 }
70
71 /* The IFORCE_XMIT_RUNNING bit is not cleared here. That's intended.
72 * As long as the urb completion handler is not called, the transmiting
73 * is considered to be running */
74 spin_unlock_irqrestore(&iforce->xmit_lock, flags);
75}
76
77static void iforce_usb_irq(struct urb *urb, struct pt_regs *regs)
78{
79 struct iforce *iforce = urb->context;
80 int status;
81
82 switch (urb->status) {
83 case 0:
84 /* success */
85 break;
86 case -ECONNRESET:
87 case -ENOENT:
88 case -ESHUTDOWN:
89 /* this urb is terminated, clean up */
90 dbg("%s - urb shutting down with status: %d",
91 __FUNCTION__, urb->status);
92 return;
93 default:
94 dbg("%s - urb has status of: %d", __FUNCTION__, urb->status);
95 goto exit;
96 }
97
98 iforce_process_packet(iforce,
99 (iforce->data[0] << 8) | (urb->actual_length - 1), iforce->data + 1, regs);
100
101exit:
102 status = usb_submit_urb (urb, GFP_ATOMIC);
103 if (status)
104 err ("%s - usb_submit_urb failed with result %d",
105 __FUNCTION__, status);
106}
107
108static void iforce_usb_out(struct urb *urb, struct pt_regs *regs)
109{
110 struct iforce *iforce = urb->context;
111
112 if (urb->status) {
113 printk(KERN_DEBUG "iforce_usb_out: urb->status %d, exiting", urb->status);
114 return;
115 }
116
117 iforce_usb_xmit(iforce);
118
119 wake_up(&iforce->wait);
120}
121
122static void iforce_usb_ctrl(struct urb *urb, struct pt_regs *regs)
123{
124 struct iforce *iforce = urb->context;
125 if (urb->status) return;
126 iforce->ecmd = 0xff00 | urb->actual_length;
127 wake_up(&iforce->wait);
128}
129
130static int iforce_usb_probe(struct usb_interface *intf,
131 const struct usb_device_id *id)
132{
133 struct usb_device *dev = interface_to_usbdev(intf);
134 struct usb_host_interface *interface;
135 struct usb_endpoint_descriptor *epirq, *epout;
136 struct iforce *iforce;
137
138 interface = intf->cur_altsetting;
139
140 epirq = &interface->endpoint[0].desc;
141 epout = &interface->endpoint[1].desc;
142
143 if (!(iforce = kmalloc(sizeof(struct iforce) + 32, GFP_KERNEL)))
144 goto fail;
145
146 memset(iforce, 0, sizeof(struct iforce));
147
148 if (!(iforce->irq = usb_alloc_urb(0, GFP_KERNEL))) {
149 goto fail;
150 }
151
152 if (!(iforce->out = usb_alloc_urb(0, GFP_KERNEL))) {
153 goto fail;
154 }
155
156 if (!(iforce->ctrl = usb_alloc_urb(0, GFP_KERNEL))) {
157 goto fail;
158 }
159
160 iforce->bus = IFORCE_USB;
161 iforce->usbdev = dev;
162
163 iforce->cr.bRequestType = USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_INTERFACE;
164 iforce->cr.wIndex = 0;
165 iforce->cr.wLength = 16;
166
167 usb_fill_int_urb(iforce->irq, dev, usb_rcvintpipe(dev, epirq->bEndpointAddress),
168 iforce->data, 16, iforce_usb_irq, iforce, epirq->bInterval);
169
170 usb_fill_bulk_urb(iforce->out, dev, usb_sndbulkpipe(dev, epout->bEndpointAddress),
171 iforce + 1, 32, iforce_usb_out, iforce);
172
173 usb_fill_control_urb(iforce->ctrl, dev, usb_rcvctrlpipe(dev, 0),
174 (void*) &iforce->cr, iforce->edata, 16, iforce_usb_ctrl, iforce);
175
176 if (iforce_init_device(iforce)) goto fail;
177
178 usb_set_intfdata(intf, iforce);
179 return 0;
180
181fail:
182 if (iforce) {
183 if (iforce->irq) usb_free_urb(iforce->irq);
184 if (iforce->out) usb_free_urb(iforce->out);
185 if (iforce->ctrl) usb_free_urb(iforce->ctrl);
186 kfree(iforce);
187 }
188
189 return -ENODEV;
190}
191
192/* Called by iforce_delete() */
193void iforce_usb_delete(struct iforce* iforce)
194{
195 usb_unlink_urb(iforce->irq);
196/* Is it ok to unlink those ? */
197 usb_unlink_urb(iforce->out);
198 usb_unlink_urb(iforce->ctrl);
199
200 usb_free_urb(iforce->irq);
201 usb_free_urb(iforce->out);
202 usb_free_urb(iforce->ctrl);
203}
204
205static void iforce_usb_disconnect(struct usb_interface *intf)
206{
207 struct iforce *iforce = usb_get_intfdata(intf);
208 int open = 0; /* FIXME! iforce->dev.handle->open; */
209
210 usb_set_intfdata(intf, NULL);
211 if (iforce) {
212 iforce->usbdev = NULL;
213 input_unregister_device(&iforce->dev);
214
215 if (!open) {
216 iforce_delete_device(iforce);
217 kfree(iforce);
218 }
219 }
220}
221
222static struct usb_device_id iforce_usb_ids [] = {
223 { USB_DEVICE(0x044f, 0xa01c) }, /* Thrustmaster Motor Sport GT */
224 { USB_DEVICE(0x046d, 0xc281) }, /* Logitech WingMan Force */
225 { USB_DEVICE(0x046d, 0xc291) }, /* Logitech WingMan Formula Force */
226 { USB_DEVICE(0x05ef, 0x020a) }, /* AVB Top Shot Pegasus */
227 { USB_DEVICE(0x05ef, 0x8884) }, /* AVB Mag Turbo Force */
228 { USB_DEVICE(0x05ef, 0x8888) }, /* AVB Top Shot FFB Racing Wheel */
229 { USB_DEVICE(0x061c, 0xc0a4) }, /* ACT LABS Force RS */
230 { USB_DEVICE(0x06f8, 0x0001) }, /* Guillemot Race Leader Force Feedback */
231 { USB_DEVICE(0x06f8, 0x0004) }, /* Guillemot Force Feedback Racing Wheel */
232 { } /* Terminating entry */
233};
234
235MODULE_DEVICE_TABLE (usb, iforce_usb_ids);
236
237struct usb_driver iforce_usb_driver = {
238 .owner = THIS_MODULE,
239 .name = "iforce",
240 .probe = iforce_usb_probe,
241 .disconnect = iforce_usb_disconnect,
242 .id_table = iforce_usb_ids,
243};
diff --git a/drivers/input/joystick/iforce/iforce.h b/drivers/input/joystick/iforce/iforce.h
new file mode 100644
index 00000000000..bce247bc300
--- /dev/null
+++ b/drivers/input/joystick/iforce/iforce.h
@@ -0,0 +1,191 @@
1/*
2 * $Id: iforce.h,v 1.13 2002/07/07 10:22:50 jdeneux Exp $
3 *
4 * Copyright (c) 2000-2002 Vojtech Pavlik <vojtech@ucw.cz>
5 * Copyright (c) 2001-2002 Johann Deneux <deneux@ifrance.com>
6 *
7 * USB/RS232 I-Force joysticks and wheels.
8 */
9
10/*
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 *
25 * Should you need to contact me, the author, you can do so either by
26 * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
27 * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
28 */
29
30#include <linux/kernel.h>
31#include <linux/slab.h>
32#include <linux/input.h>
33#include <linux/module.h>
34#include <linux/init.h>
35#include <linux/spinlock.h>
36#include <linux/usb.h>
37#include <linux/serio.h>
38#include <linux/config.h>
39#include <linux/circ_buf.h>
40#include <asm/semaphore.h>
41
42/* This module provides arbitrary resource management routines.
43 * I use it to manage the device's memory.
44 * Despite the name of this module, I am *not* going to access the ioports.
45 */
46#include <linux/ioport.h>
47
48#define IFORCE_MAX_LENGTH 16
49
50/* iforce::bus */
51#define IFORCE_232 1
52#define IFORCE_USB 2
53
54#define FALSE 0
55#define TRUE 1
56
57#define FF_EFFECTS_MAX 32
58
59/* Each force feedback effect is made of one core effect, which can be
60 * associated to at most to effect modifiers
61 */
62#define FF_MOD1_IS_USED 0
63#define FF_MOD2_IS_USED 1
64#define FF_CORE_IS_USED 2
65#define FF_CORE_IS_PLAYED 3 /* Effect is currently being played */
66#define FF_CORE_SHOULD_PLAY 4 /* User wants the effect to be played */
67#define FF_CORE_UPDATE 5 /* Effect is being updated */
68#define FF_MODCORE_MAX 5
69
70#define CHECK_OWNERSHIP(i, iforce) \
71 ((i) < FF_EFFECTS_MAX && i >= 0 && \
72 test_bit(FF_CORE_IS_USED, (iforce)->core_effects[(i)].flags) && \
73 (current->pid == 0 || \
74 (iforce)->core_effects[(i)].owner == current->pid))
75
76struct iforce_core_effect {
77 /* Information about where modifiers are stored in the device's memory */
78 struct resource mod1_chunk;
79 struct resource mod2_chunk;
80 unsigned long flags[NBITS(FF_MODCORE_MAX)];
81 pid_t owner;
82 /* Used to keep track of parameters of an effect. They are needed
83 * to know what parts of an effect changed in an update operation.
84 * We try to send only parameter packets if possible, as sending
85 * effect parameter requires the effect to be stoped and restarted
86 */
87 struct ff_effect effect;
88};
89
90#define FF_CMD_EFFECT 0x010e
91#define FF_CMD_ENVELOPE 0x0208
92#define FF_CMD_MAGNITUDE 0x0303
93#define FF_CMD_PERIOD 0x0407
94#define FF_CMD_CONDITION 0x050a
95
96#define FF_CMD_AUTOCENTER 0x4002
97#define FF_CMD_PLAY 0x4103
98#define FF_CMD_ENABLE 0x4201
99#define FF_CMD_GAIN 0x4301
100
101#define FF_CMD_QUERY 0xff01
102
103/* Buffer for async write */
104#define XMIT_SIZE 256
105#define XMIT_INC(var, n) (var)+=n; (var)&= XMIT_SIZE -1
106/* iforce::xmit_flags */
107#define IFORCE_XMIT_RUNNING 0
108#define IFORCE_XMIT_AGAIN 1
109
110struct iforce_device {
111 u16 idvendor;
112 u16 idproduct;
113 char *name;
114 signed short *btn;
115 signed short *abs;
116 signed short *ff;
117};
118
119struct iforce {
120 struct input_dev dev; /* Input device interface */
121 struct iforce_device *type;
122 int bus;
123
124 unsigned char data[IFORCE_MAX_LENGTH];
125 unsigned char edata[IFORCE_MAX_LENGTH];
126 u16 ecmd;
127 u16 expect_packet;
128
129#ifdef CONFIG_JOYSTICK_IFORCE_232
130 struct serio *serio; /* RS232 transfer */
131 int idx, pkt, len, id;
132 unsigned char csum;
133#endif
134#ifdef CONFIG_JOYSTICK_IFORCE_USB
135 struct usb_device *usbdev; /* USB transfer */
136 struct urb *irq, *out, *ctrl;
137 struct usb_ctrlrequest cr;
138#endif
139 spinlock_t xmit_lock;
140 /* Buffer used for asynchronous sending of bytes to the device */
141 struct circ_buf xmit;
142 unsigned char xmit_data[XMIT_SIZE];
143 long xmit_flags[1];
144
145 /* Force Feedback */
146 wait_queue_head_t wait;
147 struct resource device_memory;
148 struct iforce_core_effect core_effects[FF_EFFECTS_MAX];
149 struct semaphore mem_mutex;
150};
151
152/* Get hi and low bytes of a 16-bits int */
153#define HI(a) ((unsigned char)((a) >> 8))
154#define LO(a) ((unsigned char)((a) & 0xff))
155
156/* For many parameters, it seems that 0x80 is a special value that should
157 * be avoided. Instead, we replace this value by 0x7f
158 */
159#define HIFIX80(a) ((unsigned char)(((a)<0? (a)+255 : (a))>>8))
160
161/* Encode a time value */
162#define TIME_SCALE(a) (a)
163
164
165/* Public functions */
166/* iforce-serio.c */
167void iforce_serial_xmit(struct iforce *iforce);
168
169/* iforce-usb.c */
170void iforce_usb_xmit(struct iforce *iforce);
171void iforce_usb_delete(struct iforce *iforce);
172
173/* iforce-main.c */
174int iforce_init_device(struct iforce *iforce);
175void iforce_delete_device(struct iforce *iforce);
176
177/* iforce-packets.c */
178int iforce_control_playback(struct iforce*, u16 id, unsigned int);
179void iforce_process_packet(struct iforce *iforce, u16 cmd, unsigned char *data, struct pt_regs *regs);
180int iforce_send_packet(struct iforce *iforce, u16 cmd, unsigned char* data);
181void iforce_dump_packet(char *msg, u16 cmd, unsigned char *data) ;
182int iforce_get_id_packet(struct iforce *iforce, char *packet);
183
184/* iforce-ff.c */
185int iforce_upload_periodic(struct iforce*, struct ff_effect*, int is_update);
186int iforce_upload_constant(struct iforce*, struct ff_effect*, int is_update);
187int iforce_upload_condition(struct iforce*, struct ff_effect*, int is_update);
188
189/* Public variables */
190extern struct serio_driver iforce_serio_drv;
191extern struct usb_driver iforce_usb_driver;
generated by cgit v1.2.2 (git 2.25.0) at 2024-10-17 05:21:53 -0400