Commit | Line | Data |
---|---|---|
32c88cbc | 1 | /* |
64013800 | 2 | * Force feedback support for Logitech Gaming Wheels |
32c88cbc | 3 | * |
64013800 SW |
4 | * Including G27, G25, DFP, DFGT, FFEX, Momo, Momo2 & |
5 | * Speed Force Wireless (WiiWheel) | |
32c88cbc SW |
6 | * |
7 | * Copyright (c) 2010 Simon Wood <simon@mungewell.org> | |
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 | ||
26 | ||
27 | #include <linux/input.h> | |
28 | #include <linux/usb.h> | |
29 | #include <linux/hid.h> | |
30 | ||
31 | #include "usbhid/usbhid.h" | |
32 | #include "hid-lg.h" | |
a54dc779 | 33 | #include "hid-lg4ff.h" |
7362cd22 | 34 | #include "hid-ids.h" |
32c88cbc | 35 | |
30bb75d7 MM |
36 | #define to_hid_device(pdev) container_of(pdev, struct hid_device, dev) |
37 | ||
b96d23ec | 38 | #define LG4FF_MMODE_IS_MULTIMODE 0 |
e7c23449 MM |
39 | #define LG4FF_MMODE_SWITCHED 1 |
40 | #define LG4FF_MMODE_NOT_MULTIMODE 2 | |
41 | ||
b96d23ec MM |
42 | #define LG4FF_MODE_NATIVE_IDX 0 |
43 | #define LG4FF_MODE_DFEX_IDX 1 | |
44 | #define LG4FF_MODE_DFP_IDX 2 | |
45 | #define LG4FF_MODE_G25_IDX 3 | |
46 | #define LG4FF_MODE_DFGT_IDX 4 | |
47 | #define LG4FF_MODE_G27_IDX 5 | |
29fae1c8 SW |
48 | #define LG4FF_MODE_G29_IDX 6 |
49 | #define LG4FF_MODE_MAX_IDX 7 | |
b96d23ec MM |
50 | |
51 | #define LG4FF_MODE_NATIVE BIT(LG4FF_MODE_NATIVE_IDX) | |
52 | #define LG4FF_MODE_DFEX BIT(LG4FF_MODE_DFEX_IDX) | |
53 | #define LG4FF_MODE_DFP BIT(LG4FF_MODE_DFP_IDX) | |
54 | #define LG4FF_MODE_G25 BIT(LG4FF_MODE_G25_IDX) | |
55 | #define LG4FF_MODE_DFGT BIT(LG4FF_MODE_DFGT_IDX) | |
56 | #define LG4FF_MODE_G27 BIT(LG4FF_MODE_G27_IDX) | |
29fae1c8 | 57 | #define LG4FF_MODE_G29 BIT(LG4FF_MODE_G29_IDX) |
b96d23ec MM |
58 | |
59 | #define LG4FF_DFEX_TAG "DF-EX" | |
60 | #define LG4FF_DFEX_NAME "Driving Force / Formula EX" | |
61 | #define LG4FF_DFP_TAG "DFP" | |
62 | #define LG4FF_DFP_NAME "Driving Force Pro" | |
63 | #define LG4FF_G25_TAG "G25" | |
64 | #define LG4FF_G25_NAME "G25 Racing Wheel" | |
65 | #define LG4FF_G27_TAG "G27" | |
66 | #define LG4FF_G27_NAME "G27 Racing Wheel" | |
29fae1c8 SW |
67 | #define LG4FF_G29_TAG "G29" |
68 | #define LG4FF_G29_NAME "G29 Racing Wheel" | |
b96d23ec MM |
69 | #define LG4FF_DFGT_TAG "DFGT" |
70 | #define LG4FF_DFGT_NAME "Driving Force GT" | |
71 | ||
e7c23449 MM |
72 | #define LG4FF_FFEX_REV_MAJ 0x21 |
73 | #define LG4FF_FFEX_REV_MIN 0x00 | |
74 | ||
d0afd848 MM |
75 | static void lg4ff_set_range_dfp(struct hid_device *hid, u16 range); |
76 | static void lg4ff_set_range_g25(struct hid_device *hid, u16 range); | |
30bb75d7 | 77 | |
72529c65 | 78 | struct lg4ff_wheel_data { |
5d9d60ad | 79 | const u32 product_id; |
2a552c30 | 80 | u16 range; |
5d9d60ad MM |
81 | const u16 min_range; |
82 | const u16 max_range; | |
22bcefdc | 83 | #ifdef CONFIG_LEDS_CLASS |
2a552c30 | 84 | u8 led_state; |
22bcefdc SW |
85 | struct led_classdev *led[5]; |
86 | #endif | |
5d9d60ad MM |
87 | const u32 alternate_modes; |
88 | const char * const real_tag; | |
89 | const char * const real_name; | |
90 | const u16 real_product_id; | |
72529c65 | 91 | |
30bb75d7 MM |
92 | void (*set_range)(struct hid_device *hid, u16 range); |
93 | }; | |
94 | ||
72529c65 | 95 | struct lg4ff_device_entry { |
c918fe78 | 96 | spinlock_t report_lock; /* Protect output HID report */ |
c28abd8c | 97 | struct hid_report *report; |
72529c65 MM |
98 | struct lg4ff_wheel_data wdata; |
99 | }; | |
100 | ||
7362cd22 | 101 | static const signed short lg4ff_wheel_effects[] = { |
32c88cbc SW |
102 | FF_CONSTANT, |
103 | FF_AUTOCENTER, | |
104 | -1 | |
105 | }; | |
106 | ||
7362cd22 | 107 | struct lg4ff_wheel { |
2a552c30 | 108 | const u32 product_id; |
7362cd22 | 109 | const signed short *ff_effects; |
2a552c30 MM |
110 | const u16 min_range; |
111 | const u16 max_range; | |
30bb75d7 | 112 | void (*set_range)(struct hid_device *hid, u16 range); |
7362cd22 MM |
113 | }; |
114 | ||
e7c23449 | 115 | struct lg4ff_compat_mode_switch { |
2a552c30 MM |
116 | const u8 cmd_count; /* Number of commands to send */ |
117 | const u8 cmd[]; | |
e7c23449 MM |
118 | }; |
119 | ||
120 | struct lg4ff_wheel_ident_info { | |
bbec1bd0 | 121 | const u32 modes; |
e7c23449 MM |
122 | const u16 mask; |
123 | const u16 result; | |
124 | const u16 real_product_id; | |
125 | }; | |
126 | ||
b96d23ec MM |
127 | struct lg4ff_multimode_wheel { |
128 | const u16 product_id; | |
129 | const u32 alternate_modes; | |
130 | const char *real_tag; | |
131 | const char *real_name; | |
132 | }; | |
133 | ||
134 | struct lg4ff_alternate_mode { | |
135 | const u16 product_id; | |
136 | const char *tag; | |
137 | const char *name; | |
138 | }; | |
139 | ||
7362cd22 | 140 | static const struct lg4ff_wheel lg4ff_devices[] = { |
30bb75d7 MM |
141 | {USB_DEVICE_ID_LOGITECH_WHEEL, lg4ff_wheel_effects, 40, 270, NULL}, |
142 | {USB_DEVICE_ID_LOGITECH_MOMO_WHEEL, lg4ff_wheel_effects, 40, 270, NULL}, | |
d0afd848 MM |
143 | {USB_DEVICE_ID_LOGITECH_DFP_WHEEL, lg4ff_wheel_effects, 40, 900, lg4ff_set_range_dfp}, |
144 | {USB_DEVICE_ID_LOGITECH_G25_WHEEL, lg4ff_wheel_effects, 40, 900, lg4ff_set_range_g25}, | |
145 | {USB_DEVICE_ID_LOGITECH_DFGT_WHEEL, lg4ff_wheel_effects, 40, 900, lg4ff_set_range_g25}, | |
146 | {USB_DEVICE_ID_LOGITECH_G27_WHEEL, lg4ff_wheel_effects, 40, 900, lg4ff_set_range_g25}, | |
29fae1c8 | 147 | {USB_DEVICE_ID_LOGITECH_G29_WHEEL, lg4ff_wheel_effects, 40, 900, lg4ff_set_range_g25}, |
30bb75d7 MM |
148 | {USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2, lg4ff_wheel_effects, 40, 270, NULL}, |
149 | {USB_DEVICE_ID_LOGITECH_WII_WHEEL, lg4ff_wheel_effects, 40, 270, NULL} | |
7362cd22 MM |
150 | }; |
151 | ||
b96d23ec MM |
152 | static const struct lg4ff_multimode_wheel lg4ff_multimode_wheels[] = { |
153 | {USB_DEVICE_ID_LOGITECH_DFP_WHEEL, | |
154 | LG4FF_MODE_NATIVE | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, | |
155 | LG4FF_DFP_TAG, LG4FF_DFP_NAME}, | |
156 | {USB_DEVICE_ID_LOGITECH_G25_WHEEL, | |
157 | LG4FF_MODE_NATIVE | LG4FF_MODE_G25 | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, | |
158 | LG4FF_G25_TAG, LG4FF_G25_NAME}, | |
159 | {USB_DEVICE_ID_LOGITECH_DFGT_WHEEL, | |
160 | LG4FF_MODE_NATIVE | LG4FF_MODE_DFGT | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, | |
161 | LG4FF_DFGT_TAG, LG4FF_DFGT_NAME}, | |
162 | {USB_DEVICE_ID_LOGITECH_G27_WHEEL, | |
163 | LG4FF_MODE_NATIVE | LG4FF_MODE_G27 | LG4FF_MODE_G25 | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, | |
164 | LG4FF_G27_TAG, LG4FF_G27_NAME}, | |
29fae1c8 SW |
165 | {USB_DEVICE_ID_LOGITECH_G29_WHEEL, |
166 | LG4FF_MODE_NATIVE | LG4FF_MODE_G29 | LG4FF_MODE_G27 | LG4FF_MODE_G25 | LG4FF_MODE_DFGT | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, | |
167 | LG4FF_G29_TAG, LG4FF_G29_NAME}, | |
b96d23ec MM |
168 | }; |
169 | ||
170 | static const struct lg4ff_alternate_mode lg4ff_alternate_modes[] = { | |
171 | [LG4FF_MODE_NATIVE_IDX] = {0, "native", ""}, | |
172 | [LG4FF_MODE_DFEX_IDX] = {USB_DEVICE_ID_LOGITECH_WHEEL, LG4FF_DFEX_TAG, LG4FF_DFEX_NAME}, | |
173 | [LG4FF_MODE_DFP_IDX] = {USB_DEVICE_ID_LOGITECH_DFP_WHEEL, LG4FF_DFP_TAG, LG4FF_DFP_NAME}, | |
174 | [LG4FF_MODE_G25_IDX] = {USB_DEVICE_ID_LOGITECH_G25_WHEEL, LG4FF_G25_TAG, LG4FF_G25_NAME}, | |
175 | [LG4FF_MODE_DFGT_IDX] = {USB_DEVICE_ID_LOGITECH_DFGT_WHEEL, LG4FF_DFGT_TAG, LG4FF_DFGT_NAME}, | |
29fae1c8 SW |
176 | [LG4FF_MODE_G27_IDX] = {USB_DEVICE_ID_LOGITECH_G27_WHEEL, LG4FF_G27_TAG, LG4FF_G27_NAME}, |
177 | [LG4FF_MODE_G29_IDX] = {USB_DEVICE_ID_LOGITECH_G29_WHEEL, LG4FF_G29_TAG, LG4FF_G29_NAME}, | |
b96d23ec MM |
178 | }; |
179 | ||
e7c23449 MM |
180 | /* Multimode wheel identificators */ |
181 | static const struct lg4ff_wheel_ident_info lg4ff_dfp_ident_info = { | |
bbec1bd0 | 182 | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, |
e7c23449 MM |
183 | 0xf000, |
184 | 0x1000, | |
185 | USB_DEVICE_ID_LOGITECH_DFP_WHEEL | |
186 | }; | |
187 | ||
188 | static const struct lg4ff_wheel_ident_info lg4ff_g25_ident_info = { | |
bbec1bd0 | 189 | LG4FF_MODE_G25 | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, |
e7c23449 MM |
190 | 0xff00, |
191 | 0x1200, | |
192 | USB_DEVICE_ID_LOGITECH_G25_WHEEL | |
193 | }; | |
194 | ||
195 | static const struct lg4ff_wheel_ident_info lg4ff_g27_ident_info = { | |
bbec1bd0 | 196 | LG4FF_MODE_G27 | LG4FF_MODE_G25 | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, |
e7c23449 MM |
197 | 0xfff0, |
198 | 0x1230, | |
199 | USB_DEVICE_ID_LOGITECH_G27_WHEEL | |
96440c8a MM |
200 | }; |
201 | ||
e7c23449 | 202 | static const struct lg4ff_wheel_ident_info lg4ff_dfgt_ident_info = { |
bbec1bd0 | 203 | LG4FF_MODE_DFGT | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, |
e7c23449 MM |
204 | 0xff00, |
205 | 0x1300, | |
206 | USB_DEVICE_ID_LOGITECH_DFGT_WHEEL | |
96440c8a MM |
207 | }; |
208 | ||
29fae1c8 SW |
209 | static const struct lg4ff_wheel_ident_info lg4ff_g29_ident_info = { |
210 | LG4FF_MODE_G29 | LG4FF_MODE_G27 | LG4FF_MODE_G25 | LG4FF_MODE_DFGT | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, | |
211 | 0xfff8, | |
212 | 0x1350, | |
213 | USB_DEVICE_ID_LOGITECH_G29_WHEEL | |
214 | }; | |
215 | ||
216 | static const struct lg4ff_wheel_ident_info lg4ff_g29_ident_info2 = { | |
217 | LG4FF_MODE_G29 | LG4FF_MODE_G27 | LG4FF_MODE_G25 | LG4FF_MODE_DFGT | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, | |
218 | 0xff00, | |
219 | 0x8900, | |
220 | USB_DEVICE_ID_LOGITECH_G29_WHEEL | |
221 | }; | |
222 | ||
e7c23449 | 223 | /* Multimode wheel identification checklists */ |
bbec1bd0 | 224 | static const struct lg4ff_wheel_ident_info *lg4ff_main_checklist[] = { |
29fae1c8 SW |
225 | &lg4ff_g29_ident_info, |
226 | &lg4ff_g29_ident_info2, | |
bbec1bd0 SW |
227 | &lg4ff_dfgt_ident_info, |
228 | &lg4ff_g27_ident_info, | |
229 | &lg4ff_g25_ident_info, | |
230 | &lg4ff_dfp_ident_info | |
e7c23449 MM |
231 | }; |
232 | ||
233 | /* Compatibility mode switching commands */ | |
f31a2de3 MM |
234 | /* EXT_CMD9 - Understood by G27 and DFGT */ |
235 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_dfex = { | |
236 | 2, | |
237 | {0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* Revert mode upon USB reset */ | |
238 | 0xf8, 0x09, 0x00, 0x01, 0x00, 0x00, 0x00} /* Switch mode to DF-EX with detach */ | |
96440c8a MM |
239 | }; |
240 | ||
f31a2de3 | 241 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_dfp = { |
96440c8a | 242 | 2, |
f31a2de3 MM |
243 | {0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* Revert mode upon USB reset */ |
244 | 0xf8, 0x09, 0x01, 0x01, 0x00, 0x00, 0x00} /* Switch mode to DFP with detach */ | |
96440c8a MM |
245 | }; |
246 | ||
f31a2de3 MM |
247 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_g25 = { |
248 | 2, | |
249 | {0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* Revert mode upon USB reset */ | |
250 | 0xf8, 0x09, 0x02, 0x01, 0x00, 0x00, 0x00} /* Switch mode to G25 with detach */ | |
96440c8a MM |
251 | }; |
252 | ||
f31a2de3 | 253 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_dfgt = { |
96440c8a | 254 | 2, |
f31a2de3 MM |
255 | {0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* Revert mode upon USB reset */ |
256 | 0xf8, 0x09, 0x03, 0x01, 0x00, 0x00, 0x00} /* Switch mode to DFGT with detach */ | |
257 | }; | |
258 | ||
259 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_g27 = { | |
260 | 2, | |
261 | {0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* Revert mode upon USB reset */ | |
262 | 0xf8, 0x09, 0x04, 0x01, 0x00, 0x00, 0x00} /* Switch mode to G27 with detach */ | |
263 | }; | |
264 | ||
29fae1c8 SW |
265 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_g29 = { |
266 | 2, | |
267 | {0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* Revert mode upon USB reset */ | |
268 | 0xf8, 0x09, 0x05, 0x01, 0x01, 0x00, 0x00} /* Switch mode to G29 with detach */ | |
269 | }; | |
270 | ||
f31a2de3 MM |
271 | /* EXT_CMD1 - Understood by DFP, G25, G27 and DFGT */ |
272 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext01_dfp = { | |
273 | 1, | |
274 | {0xf8, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00} | |
275 | }; | |
276 | ||
277 | /* EXT_CMD16 - Understood by G25 and G27 */ | |
278 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext16_g25 = { | |
279 | 1, | |
280 | {0xf8, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00} | |
96440c8a MM |
281 | }; |
282 | ||
2b24a960 | 283 | /* Recalculates X axis value accordingly to currently selected range */ |
2a552c30 | 284 | static s32 lg4ff_adjust_dfp_x_axis(s32 value, u16 range) |
2b24a960 | 285 | { |
2a552c30 MM |
286 | u16 max_range; |
287 | s32 new_value; | |
2b24a960 MM |
288 | |
289 | if (range == 900) | |
290 | return value; | |
291 | else if (range == 200) | |
292 | return value; | |
293 | else if (range < 200) | |
294 | max_range = 200; | |
295 | else | |
296 | max_range = 900; | |
297 | ||
298 | new_value = 8192 + mult_frac(value - 8192, max_range, range); | |
299 | if (new_value < 0) | |
300 | return 0; | |
301 | else if (new_value > 16383) | |
302 | return 16383; | |
303 | else | |
304 | return new_value; | |
305 | } | |
306 | ||
307 | int lg4ff_adjust_input_event(struct hid_device *hid, struct hid_field *field, | |
2a552c30 | 308 | struct hid_usage *usage, s32 value, struct lg_drv_data *drv_data) |
2b24a960 MM |
309 | { |
310 | struct lg4ff_device_entry *entry = drv_data->device_props; | |
2a552c30 | 311 | s32 new_value = 0; |
2b24a960 MM |
312 | |
313 | if (!entry) { | |
314 | hid_err(hid, "Device properties not found"); | |
315 | return 0; | |
316 | } | |
317 | ||
72529c65 | 318 | switch (entry->wdata.product_id) { |
2b24a960 MM |
319 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: |
320 | switch (usage->code) { | |
321 | case ABS_X: | |
72529c65 | 322 | new_value = lg4ff_adjust_dfp_x_axis(value, entry->wdata.range); |
2b24a960 MM |
323 | input_event(field->hidinput->input, usage->type, usage->code, new_value); |
324 | return 1; | |
325 | default: | |
326 | return 0; | |
327 | } | |
328 | default: | |
329 | return 0; | |
330 | } | |
331 | } | |
332 | ||
5d9d60ad MM |
333 | static void lg4ff_init_wheel_data(struct lg4ff_wheel_data * const wdata, const struct lg4ff_wheel *wheel, |
334 | const struct lg4ff_multimode_wheel *mmode_wheel, | |
335 | const u16 real_product_id) | |
336 | { | |
337 | u32 alternate_modes = 0; | |
338 | const char *real_tag = NULL; | |
339 | const char *real_name = NULL; | |
340 | ||
341 | if (mmode_wheel) { | |
342 | alternate_modes = mmode_wheel->alternate_modes; | |
343 | real_tag = mmode_wheel->real_tag; | |
344 | real_name = mmode_wheel->real_name; | |
345 | } | |
346 | ||
347 | { | |
348 | struct lg4ff_wheel_data t_wdata = { .product_id = wheel->product_id, | |
349 | .real_product_id = real_product_id, | |
350 | .min_range = wheel->min_range, | |
351 | .max_range = wheel->max_range, | |
352 | .set_range = wheel->set_range, | |
353 | .alternate_modes = alternate_modes, | |
354 | .real_tag = real_tag, | |
355 | .real_name = real_name }; | |
356 | ||
357 | memcpy(wdata, &t_wdata, sizeof(t_wdata)); | |
358 | } | |
359 | } | |
360 | ||
d0afd848 | 361 | static int lg4ff_play(struct input_dev *dev, void *data, struct ff_effect *effect) |
32c88cbc SW |
362 | { |
363 | struct hid_device *hid = input_get_drvdata(dev); | |
c918fe78 MM |
364 | struct lg4ff_device_entry *entry; |
365 | struct lg_drv_data *drv_data; | |
366 | unsigned long flags; | |
c28abd8c | 367 | s32 *value; |
32c88cbc SW |
368 | int x; |
369 | ||
c918fe78 MM |
370 | drv_data = hid_get_drvdata(hid); |
371 | if (!drv_data) { | |
372 | hid_err(hid, "Private driver data not found!\n"); | |
373 | return -EINVAL; | |
374 | } | |
375 | ||
376 | entry = drv_data->device_props; | |
377 | if (!entry) { | |
378 | hid_err(hid, "Device properties not found!\n"); | |
379 | return -EINVAL; | |
380 | } | |
c28abd8c | 381 | value = entry->report->field[0]->value; |
c918fe78 | 382 | |
a80fe5d6 | 383 | #define CLAMP(x) do { if (x < 0) x = 0; else if (x > 0xff) x = 0xff; } while (0) |
32c88cbc SW |
384 | |
385 | switch (effect->type) { | |
386 | case FF_CONSTANT: | |
387 | x = effect->u.ramp.start_level + 0x80; /* 0x80 is no force */ | |
388 | CLAMP(x); | |
56930e7a | 389 | |
c918fe78 | 390 | spin_lock_irqsave(&entry->report_lock, flags); |
56930e7a SW |
391 | if (x == 0x80) { |
392 | /* De-activate force in slot-1*/ | |
393 | value[0] = 0x13; | |
394 | value[1] = 0x00; | |
395 | value[2] = 0x00; | |
396 | value[3] = 0x00; | |
397 | value[4] = 0x00; | |
398 | value[5] = 0x00; | |
399 | value[6] = 0x00; | |
400 | ||
c28abd8c | 401 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 402 | spin_unlock_irqrestore(&entry->report_lock, flags); |
56930e7a SW |
403 | return 0; |
404 | } | |
405 | ||
74479ba8 MM |
406 | value[0] = 0x11; /* Slot 1 */ |
407 | value[1] = 0x08; | |
408 | value[2] = x; | |
409 | value[3] = 0x80; | |
410 | value[4] = 0x00; | |
411 | value[5] = 0x00; | |
412 | value[6] = 0x00; | |
32c88cbc | 413 | |
c28abd8c | 414 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 415 | spin_unlock_irqrestore(&entry->report_lock, flags); |
32c88cbc SW |
416 | break; |
417 | } | |
418 | return 0; | |
419 | } | |
420 | ||
6e2de8e0 MM |
421 | /* Sends default autocentering command compatible with |
422 | * all wheels except Formula Force EX */ | |
d0afd848 | 423 | static void lg4ff_set_autocenter_default(struct input_dev *dev, u16 magnitude) |
32c88cbc SW |
424 | { |
425 | struct hid_device *hid = input_get_drvdata(dev); | |
426 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; | |
427 | struct hid_report *report = list_entry(report_list->next, struct hid_report, list); | |
2a552c30 MM |
428 | s32 *value = report->field[0]->value; |
429 | u32 expand_a, expand_b; | |
1859762e SW |
430 | struct lg4ff_device_entry *entry; |
431 | struct lg_drv_data *drv_data; | |
c918fe78 | 432 | unsigned long flags; |
1859762e SW |
433 | |
434 | drv_data = hid_get_drvdata(hid); | |
435 | if (!drv_data) { | |
436 | hid_err(hid, "Private driver data not found!\n"); | |
437 | return; | |
438 | } | |
439 | ||
440 | entry = drv_data->device_props; | |
441 | if (!entry) { | |
442 | hid_err(hid, "Device properties not found!\n"); | |
443 | return; | |
444 | } | |
c28abd8c | 445 | value = entry->report->field[0]->value; |
f8c23156 | 446 | |
d2c02da5 | 447 | /* De-activate Auto-Center */ |
c918fe78 | 448 | spin_lock_irqsave(&entry->report_lock, flags); |
d2c02da5 SW |
449 | if (magnitude == 0) { |
450 | value[0] = 0xf5; | |
451 | value[1] = 0x00; | |
452 | value[2] = 0x00; | |
453 | value[3] = 0x00; | |
454 | value[4] = 0x00; | |
455 | value[5] = 0x00; | |
456 | value[6] = 0x00; | |
457 | ||
c28abd8c | 458 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 459 | spin_unlock_irqrestore(&entry->report_lock, flags); |
d2c02da5 SW |
460 | return; |
461 | } | |
462 | ||
f8c23156 SW |
463 | if (magnitude <= 0xaaaa) { |
464 | expand_a = 0x0c * magnitude; | |
465 | expand_b = 0x80 * magnitude; | |
466 | } else { | |
467 | expand_a = (0x0c * 0xaaaa) + 0x06 * (magnitude - 0xaaaa); | |
468 | expand_b = (0x80 * 0xaaaa) + 0xff * (magnitude - 0xaaaa); | |
469 | } | |
32c88cbc | 470 | |
1859762e | 471 | /* Adjust for non-MOMO wheels */ |
72529c65 | 472 | switch (entry->wdata.product_id) { |
1859762e SW |
473 | case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL: |
474 | case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2: | |
475 | break; | |
476 | default: | |
477 | expand_a = expand_a >> 1; | |
478 | break; | |
479 | } | |
480 | ||
74479ba8 MM |
481 | value[0] = 0xfe; |
482 | value[1] = 0x0d; | |
f8c23156 SW |
483 | value[2] = expand_a / 0xaaaa; |
484 | value[3] = expand_a / 0xaaaa; | |
485 | value[4] = expand_b / 0xaaaa; | |
74479ba8 MM |
486 | value[5] = 0x00; |
487 | value[6] = 0x00; | |
32c88cbc | 488 | |
c28abd8c | 489 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
d2c02da5 SW |
490 | |
491 | /* Activate Auto-Center */ | |
492 | value[0] = 0x14; | |
493 | value[1] = 0x00; | |
494 | value[2] = 0x00; | |
495 | value[3] = 0x00; | |
496 | value[4] = 0x00; | |
497 | value[5] = 0x00; | |
498 | value[6] = 0x00; | |
499 | ||
c28abd8c | 500 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 501 | spin_unlock_irqrestore(&entry->report_lock, flags); |
32c88cbc SW |
502 | } |
503 | ||
6e2de8e0 | 504 | /* Sends autocentering command compatible with Formula Force EX */ |
d0afd848 | 505 | static void lg4ff_set_autocenter_ffex(struct input_dev *dev, u16 magnitude) |
6e2de8e0 MM |
506 | { |
507 | struct hid_device *hid = input_get_drvdata(dev); | |
c918fe78 MM |
508 | struct lg4ff_device_entry *entry; |
509 | struct lg_drv_data *drv_data; | |
510 | unsigned long flags; | |
c28abd8c | 511 | s32 *value; |
6e2de8e0 | 512 | magnitude = magnitude * 90 / 65535; |
6e2de8e0 | 513 | |
c918fe78 MM |
514 | drv_data = hid_get_drvdata(hid); |
515 | if (!drv_data) { | |
516 | hid_err(hid, "Private driver data not found!\n"); | |
517 | return; | |
518 | } | |
519 | ||
520 | entry = drv_data->device_props; | |
521 | if (!entry) { | |
522 | hid_err(hid, "Device properties not found!\n"); | |
523 | return; | |
524 | } | |
c28abd8c | 525 | value = entry->report->field[0]->value; |
c918fe78 MM |
526 | |
527 | spin_lock_irqsave(&entry->report_lock, flags); | |
74479ba8 MM |
528 | value[0] = 0xfe; |
529 | value[1] = 0x03; | |
530 | value[2] = magnitude >> 14; | |
531 | value[3] = magnitude >> 14; | |
532 | value[4] = magnitude; | |
533 | value[5] = 0x00; | |
534 | value[6] = 0x00; | |
6e2de8e0 | 535 | |
c28abd8c | 536 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 537 | spin_unlock_irqrestore(&entry->report_lock, flags); |
6e2de8e0 MM |
538 | } |
539 | ||
30bb75d7 | 540 | /* Sends command to set range compatible with G25/G27/Driving Force GT */ |
d0afd848 | 541 | static void lg4ff_set_range_g25(struct hid_device *hid, u16 range) |
30bb75d7 | 542 | { |
c918fe78 MM |
543 | struct lg4ff_device_entry *entry; |
544 | struct lg_drv_data *drv_data; | |
545 | unsigned long flags; | |
c28abd8c | 546 | s32 *value; |
74479ba8 | 547 | |
c918fe78 MM |
548 | drv_data = hid_get_drvdata(hid); |
549 | if (!drv_data) { | |
550 | hid_err(hid, "Private driver data not found!\n"); | |
551 | return; | |
552 | } | |
553 | ||
554 | entry = drv_data->device_props; | |
555 | if (!entry) { | |
556 | hid_err(hid, "Device properties not found!\n"); | |
557 | return; | |
558 | } | |
c28abd8c | 559 | value = entry->report->field[0]->value; |
30bb75d7 MM |
560 | dbg_hid("G25/G27/DFGT: setting range to %u\n", range); |
561 | ||
c918fe78 | 562 | spin_lock_irqsave(&entry->report_lock, flags); |
74479ba8 MM |
563 | value[0] = 0xf8; |
564 | value[1] = 0x81; | |
565 | value[2] = range & 0x00ff; | |
566 | value[3] = (range & 0xff00) >> 8; | |
567 | value[4] = 0x00; | |
568 | value[5] = 0x00; | |
569 | value[6] = 0x00; | |
30bb75d7 | 570 | |
c28abd8c | 571 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 572 | spin_unlock_irqrestore(&entry->report_lock, flags); |
30bb75d7 MM |
573 | } |
574 | ||
575 | /* Sends commands to set range compatible with Driving Force Pro wheel */ | |
d0afd848 | 576 | static void lg4ff_set_range_dfp(struct hid_device *hid, u16 range) |
30bb75d7 | 577 | { |
c918fe78 MM |
578 | struct lg4ff_device_entry *entry; |
579 | struct lg_drv_data *drv_data; | |
580 | unsigned long flags; | |
c28abd8c MM |
581 | int start_left, start_right, full_range; |
582 | s32 *value; | |
74479ba8 | 583 | |
c918fe78 MM |
584 | drv_data = hid_get_drvdata(hid); |
585 | if (!drv_data) { | |
586 | hid_err(hid, "Private driver data not found!\n"); | |
587 | return; | |
588 | } | |
589 | ||
590 | entry = drv_data->device_props; | |
591 | if (!entry) { | |
592 | hid_err(hid, "Device properties not found!\n"); | |
593 | return; | |
594 | } | |
c28abd8c | 595 | value = entry->report->field[0]->value; |
30bb75d7 MM |
596 | dbg_hid("Driving Force Pro: setting range to %u\n", range); |
597 | ||
598 | /* Prepare "coarse" limit command */ | |
c918fe78 | 599 | spin_lock_irqsave(&entry->report_lock, flags); |
74479ba8 | 600 | value[0] = 0xf8; |
a80fe5d6 | 601 | value[1] = 0x00; /* Set later */ |
74479ba8 MM |
602 | value[2] = 0x00; |
603 | value[3] = 0x00; | |
604 | value[4] = 0x00; | |
605 | value[5] = 0x00; | |
606 | value[6] = 0x00; | |
30bb75d7 MM |
607 | |
608 | if (range > 200) { | |
c28abd8c | 609 | value[1] = 0x03; |
30bb75d7 MM |
610 | full_range = 900; |
611 | } else { | |
c28abd8c | 612 | value[1] = 0x02; |
30bb75d7 MM |
613 | full_range = 200; |
614 | } | |
c28abd8c | 615 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
30bb75d7 MM |
616 | |
617 | /* Prepare "fine" limit command */ | |
74479ba8 MM |
618 | value[0] = 0x81; |
619 | value[1] = 0x0b; | |
620 | value[2] = 0x00; | |
621 | value[3] = 0x00; | |
622 | value[4] = 0x00; | |
623 | value[5] = 0x00; | |
624 | value[6] = 0x00; | |
30bb75d7 MM |
625 | |
626 | if (range == 200 || range == 900) { /* Do not apply any fine limit */ | |
c28abd8c | 627 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 628 | spin_unlock_irqrestore(&entry->report_lock, flags); |
30bb75d7 MM |
629 | return; |
630 | } | |
631 | ||
632 | /* Construct fine limit command */ | |
633 | start_left = (((full_range - range + 1) * 2047) / full_range); | |
634 | start_right = 0xfff - start_left; | |
635 | ||
74479ba8 MM |
636 | value[2] = start_left >> 4; |
637 | value[3] = start_right >> 4; | |
638 | value[4] = 0xff; | |
639 | value[5] = (start_right & 0xe) << 4 | (start_left & 0xe); | |
640 | value[6] = 0xff; | |
30bb75d7 | 641 | |
c28abd8c | 642 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 643 | spin_unlock_irqrestore(&entry->report_lock, flags); |
30bb75d7 MM |
644 | } |
645 | ||
f31a2de3 MM |
646 | static const struct lg4ff_compat_mode_switch *lg4ff_get_mode_switch_command(const u16 real_product_id, const u16 target_product_id) |
647 | { | |
648 | switch (real_product_id) { | |
649 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
650 | switch (target_product_id) { | |
651 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
652 | return &lg4ff_mode_switch_ext01_dfp; | |
653 | /* DFP can only be switched to its native mode */ | |
654 | default: | |
655 | return NULL; | |
656 | } | |
657 | break; | |
658 | case USB_DEVICE_ID_LOGITECH_G25_WHEEL: | |
659 | switch (target_product_id) { | |
660 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
661 | return &lg4ff_mode_switch_ext01_dfp; | |
662 | case USB_DEVICE_ID_LOGITECH_G25_WHEEL: | |
663 | return &lg4ff_mode_switch_ext16_g25; | |
664 | /* G25 can only be switched to DFP mode or its native mode */ | |
665 | default: | |
666 | return NULL; | |
667 | } | |
668 | break; | |
669 | case USB_DEVICE_ID_LOGITECH_G27_WHEEL: | |
670 | switch (target_product_id) { | |
671 | case USB_DEVICE_ID_LOGITECH_WHEEL: | |
672 | return &lg4ff_mode_switch_ext09_dfex; | |
673 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
674 | return &lg4ff_mode_switch_ext09_dfp; | |
675 | case USB_DEVICE_ID_LOGITECH_G25_WHEEL: | |
676 | return &lg4ff_mode_switch_ext09_g25; | |
677 | case USB_DEVICE_ID_LOGITECH_G27_WHEEL: | |
678 | return &lg4ff_mode_switch_ext09_g27; | |
679 | /* G27 can only be switched to DF-EX, DFP, G25 or its native mode */ | |
680 | default: | |
681 | return NULL; | |
682 | } | |
683 | break; | |
29fae1c8 SW |
684 | case USB_DEVICE_ID_LOGITECH_G29_WHEEL: |
685 | switch (target_product_id) { | |
686 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
687 | return &lg4ff_mode_switch_ext09_dfp; | |
688 | case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL: | |
689 | return &lg4ff_mode_switch_ext09_dfgt; | |
690 | case USB_DEVICE_ID_LOGITECH_G25_WHEEL: | |
691 | return &lg4ff_mode_switch_ext09_g25; | |
692 | case USB_DEVICE_ID_LOGITECH_G27_WHEEL: | |
693 | return &lg4ff_mode_switch_ext09_g27; | |
694 | case USB_DEVICE_ID_LOGITECH_G29_WHEEL: | |
695 | return &lg4ff_mode_switch_ext09_g29; | |
696 | /* G29 can only be switched to DF-EX, DFP, DFGT, G25, G27 or its native mode */ | |
697 | default: | |
698 | return NULL; | |
699 | } | |
700 | break; | |
f31a2de3 MM |
701 | case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL: |
702 | switch (target_product_id) { | |
703 | case USB_DEVICE_ID_LOGITECH_WHEEL: | |
704 | return &lg4ff_mode_switch_ext09_dfex; | |
705 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
706 | return &lg4ff_mode_switch_ext09_dfp; | |
707 | case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL: | |
708 | return &lg4ff_mode_switch_ext09_dfgt; | |
709 | /* DFGT can only be switched to DF-EX, DFP or its native mode */ | |
710 | default: | |
711 | return NULL; | |
712 | } | |
713 | break; | |
714 | /* No other wheels have multiple modes */ | |
715 | default: | |
716 | return NULL; | |
717 | } | |
718 | } | |
719 | ||
e7c23449 | 720 | static int lg4ff_switch_compatibility_mode(struct hid_device *hid, const struct lg4ff_compat_mode_switch *s) |
96440c8a | 721 | { |
c918fe78 MM |
722 | struct lg4ff_device_entry *entry; |
723 | struct lg_drv_data *drv_data; | |
724 | unsigned long flags; | |
c28abd8c | 725 | s32 *value; |
e7c23449 | 726 | u8 i; |
96440c8a | 727 | |
c918fe78 MM |
728 | drv_data = hid_get_drvdata(hid); |
729 | if (!drv_data) { | |
730 | hid_err(hid, "Private driver data not found!\n"); | |
731 | return -EINVAL; | |
732 | } | |
733 | ||
734 | entry = drv_data->device_props; | |
735 | if (!entry) { | |
736 | hid_err(hid, "Device properties not found!\n"); | |
737 | return -EINVAL; | |
738 | } | |
c28abd8c | 739 | value = entry->report->field[0]->value; |
c918fe78 MM |
740 | |
741 | spin_lock_irqsave(&entry->report_lock, flags); | |
e7c23449 | 742 | for (i = 0; i < s->cmd_count; i++) { |
c1740d13 | 743 | u8 j; |
96440c8a | 744 | |
c1740d13 MM |
745 | for (j = 0; j < 7; j++) |
746 | value[j] = s->cmd[j + (7*i)]; | |
747 | ||
c28abd8c | 748 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
96440c8a | 749 | } |
c918fe78 | 750 | spin_unlock_irqrestore(&entry->report_lock, flags); |
c1740d13 | 751 | hid_hw_wait(hid); |
e7c23449 | 752 | return 0; |
96440c8a | 753 | } |
32c88cbc | 754 | |
b96d23ec MM |
755 | static ssize_t lg4ff_alternate_modes_show(struct device *dev, struct device_attribute *attr, char *buf) |
756 | { | |
757 | struct hid_device *hid = to_hid_device(dev); | |
758 | struct lg4ff_device_entry *entry; | |
759 | struct lg_drv_data *drv_data; | |
760 | ssize_t count = 0; | |
761 | int i; | |
762 | ||
763 | drv_data = hid_get_drvdata(hid); | |
764 | if (!drv_data) { | |
765 | hid_err(hid, "Private driver data not found!\n"); | |
766 | return 0; | |
767 | } | |
768 | ||
769 | entry = drv_data->device_props; | |
770 | if (!entry) { | |
771 | hid_err(hid, "Device properties not found!\n"); | |
772 | return 0; | |
773 | } | |
774 | ||
72529c65 | 775 | if (!entry->wdata.real_name) { |
b96d23ec MM |
776 | hid_err(hid, "NULL pointer to string\n"); |
777 | return 0; | |
778 | } | |
779 | ||
780 | for (i = 0; i < LG4FF_MODE_MAX_IDX; i++) { | |
72529c65 | 781 | if (entry->wdata.alternate_modes & BIT(i)) { |
b96d23ec MM |
782 | /* Print tag and full name */ |
783 | count += scnprintf(buf + count, PAGE_SIZE - count, "%s: %s", | |
784 | lg4ff_alternate_modes[i].tag, | |
72529c65 | 785 | !lg4ff_alternate_modes[i].product_id ? entry->wdata.real_name : lg4ff_alternate_modes[i].name); |
b96d23ec MM |
786 | if (count >= PAGE_SIZE - 1) |
787 | return count; | |
788 | ||
789 | /* Mark the currently active mode with an asterisk */ | |
72529c65 MM |
790 | if (lg4ff_alternate_modes[i].product_id == entry->wdata.product_id || |
791 | (lg4ff_alternate_modes[i].product_id == 0 && entry->wdata.product_id == entry->wdata.real_product_id)) | |
b96d23ec MM |
792 | count += scnprintf(buf + count, PAGE_SIZE - count, " *\n"); |
793 | else | |
794 | count += scnprintf(buf + count, PAGE_SIZE - count, "\n"); | |
795 | ||
796 | if (count >= PAGE_SIZE - 1) | |
797 | return count; | |
798 | } | |
799 | } | |
800 | ||
801 | return count; | |
802 | } | |
803 | ||
804 | static ssize_t lg4ff_alternate_modes_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) | |
805 | { | |
f31a2de3 MM |
806 | struct hid_device *hid = to_hid_device(dev); |
807 | struct lg4ff_device_entry *entry; | |
808 | struct lg_drv_data *drv_data; | |
809 | const struct lg4ff_compat_mode_switch *s; | |
810 | u16 target_product_id = 0; | |
811 | int i, ret; | |
812 | char *lbuf; | |
813 | ||
814 | drv_data = hid_get_drvdata(hid); | |
815 | if (!drv_data) { | |
816 | hid_err(hid, "Private driver data not found!\n"); | |
817 | return -EINVAL; | |
818 | } | |
819 | ||
820 | entry = drv_data->device_props; | |
821 | if (!entry) { | |
822 | hid_err(hid, "Device properties not found!\n"); | |
823 | return -EINVAL; | |
824 | } | |
825 | ||
826 | /* Allow \n at the end of the input parameter */ | |
827 | lbuf = kasprintf(GFP_KERNEL, "%s", buf); | |
828 | if (!lbuf) | |
829 | return -ENOMEM; | |
830 | ||
831 | i = strlen(lbuf); | |
832 | if (lbuf[i-1] == '\n') { | |
833 | if (i == 1) { | |
834 | kfree(lbuf); | |
835 | return -EINVAL; | |
836 | } | |
837 | lbuf[i-1] = '\0'; | |
838 | } | |
839 | ||
840 | for (i = 0; i < LG4FF_MODE_MAX_IDX; i++) { | |
841 | const u16 mode_product_id = lg4ff_alternate_modes[i].product_id; | |
842 | const char *tag = lg4ff_alternate_modes[i].tag; | |
843 | ||
72529c65 | 844 | if (entry->wdata.alternate_modes & BIT(i)) { |
f31a2de3 MM |
845 | if (!strcmp(tag, lbuf)) { |
846 | if (!mode_product_id) | |
72529c65 | 847 | target_product_id = entry->wdata.real_product_id; |
f31a2de3 MM |
848 | else |
849 | target_product_id = mode_product_id; | |
850 | break; | |
851 | } | |
852 | } | |
853 | } | |
854 | ||
855 | if (i == LG4FF_MODE_MAX_IDX) { | |
856 | hid_info(hid, "Requested mode \"%s\" is not supported by the device\n", lbuf); | |
857 | kfree(lbuf); | |
858 | return -EINVAL; | |
859 | } | |
860 | kfree(lbuf); /* Not needed anymore */ | |
861 | ||
72529c65 | 862 | if (target_product_id == entry->wdata.product_id) /* Nothing to do */ |
f31a2de3 MM |
863 | return count; |
864 | ||
865 | /* Automatic switching has to be disabled for the switch to DF-EX mode to work correctly */ | |
866 | if (target_product_id == USB_DEVICE_ID_LOGITECH_WHEEL && !lg4ff_no_autoswitch) { | |
867 | hid_info(hid, "\"%s\" cannot be switched to \"DF-EX\" mode. Load the \"hid_logitech\" module with \"lg4ff_no_autoswitch=1\" parameter set and try again\n", | |
72529c65 | 868 | entry->wdata.real_name); |
f31a2de3 MM |
869 | return -EINVAL; |
870 | } | |
871 | ||
872 | /* Take care of hardware limitations */ | |
72529c65 MM |
873 | if ((entry->wdata.real_product_id == USB_DEVICE_ID_LOGITECH_DFP_WHEEL || entry->wdata.real_product_id == USB_DEVICE_ID_LOGITECH_G25_WHEEL) && |
874 | entry->wdata.product_id > target_product_id) { | |
875 | hid_info(hid, "\"%s\" cannot be switched back into \"%s\" mode\n", entry->wdata.real_name, lg4ff_alternate_modes[i].name); | |
f31a2de3 MM |
876 | return -EINVAL; |
877 | } | |
878 | ||
72529c65 | 879 | s = lg4ff_get_mode_switch_command(entry->wdata.real_product_id, target_product_id); |
f31a2de3 MM |
880 | if (!s) { |
881 | hid_err(hid, "Invalid target product ID %X\n", target_product_id); | |
882 | return -EINVAL; | |
883 | } | |
884 | ||
885 | ret = lg4ff_switch_compatibility_mode(hid, s); | |
886 | return (ret == 0 ? count : ret); | |
b96d23ec MM |
887 | } |
888 | static DEVICE_ATTR(alternate_modes, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH, lg4ff_alternate_modes_show, lg4ff_alternate_modes_store); | |
889 | ||
fbf85e2a MM |
890 | /* Export the currently set range of the wheel */ |
891 | static ssize_t lg4ff_range_show(struct device *dev, struct device_attribute *attr, | |
892 | char *buf) | |
30bb75d7 | 893 | { |
30bb75d7 | 894 | struct hid_device *hid = to_hid_device(dev); |
3b6b17b7 MM |
895 | struct lg4ff_device_entry *entry; |
896 | struct lg_drv_data *drv_data; | |
30bb75d7 MM |
897 | size_t count; |
898 | ||
3b6b17b7 MM |
899 | drv_data = hid_get_drvdata(hid); |
900 | if (!drv_data) { | |
901 | hid_err(hid, "Private driver data not found!\n"); | |
902 | return 0; | |
30bb75d7 | 903 | } |
3b6b17b7 MM |
904 | |
905 | entry = drv_data->device_props; | |
906 | if (!entry) { | |
907 | hid_err(hid, "Device properties not found!\n"); | |
30bb75d7 MM |
908 | return 0; |
909 | } | |
910 | ||
72529c65 | 911 | count = scnprintf(buf, PAGE_SIZE, "%u\n", entry->wdata.range); |
30bb75d7 MM |
912 | return count; |
913 | } | |
914 | ||
915 | /* Set range to user specified value, call appropriate function | |
916 | * according to the type of the wheel */ | |
fbf85e2a MM |
917 | static ssize_t lg4ff_range_store(struct device *dev, struct device_attribute *attr, |
918 | const char *buf, size_t count) | |
30bb75d7 | 919 | { |
30bb75d7 | 920 | struct hid_device *hid = to_hid_device(dev); |
3b6b17b7 MM |
921 | struct lg4ff_device_entry *entry; |
922 | struct lg_drv_data *drv_data; | |
2a552c30 | 923 | u16 range = simple_strtoul(buf, NULL, 10); |
30bb75d7 | 924 | |
3b6b17b7 MM |
925 | drv_data = hid_get_drvdata(hid); |
926 | if (!drv_data) { | |
927 | hid_err(hid, "Private driver data not found!\n"); | |
29ff6657 | 928 | return -EINVAL; |
30bb75d7 | 929 | } |
3b6b17b7 MM |
930 | |
931 | entry = drv_data->device_props; | |
932 | if (!entry) { | |
933 | hid_err(hid, "Device properties not found!\n"); | |
29ff6657 | 934 | return -EINVAL; |
30bb75d7 MM |
935 | } |
936 | ||
937 | if (range == 0) | |
72529c65 | 938 | range = entry->wdata.max_range; |
30bb75d7 MM |
939 | |
940 | /* Check if the wheel supports range setting | |
941 | * and that the range is within limits for the wheel */ | |
72529c65 MM |
942 | if (entry->wdata.set_range && range >= entry->wdata.min_range && range <= entry->wdata.max_range) { |
943 | entry->wdata.set_range(hid, range); | |
944 | entry->wdata.range = range; | |
30bb75d7 MM |
945 | } |
946 | ||
947 | return count; | |
948 | } | |
fbf85e2a | 949 | static DEVICE_ATTR(range, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH, lg4ff_range_show, lg4ff_range_store); |
30bb75d7 | 950 | |
b96d23ec MM |
951 | static ssize_t lg4ff_real_id_show(struct device *dev, struct device_attribute *attr, char *buf) |
952 | { | |
953 | struct hid_device *hid = to_hid_device(dev); | |
954 | struct lg4ff_device_entry *entry; | |
955 | struct lg_drv_data *drv_data; | |
956 | size_t count; | |
957 | ||
958 | drv_data = hid_get_drvdata(hid); | |
959 | if (!drv_data) { | |
960 | hid_err(hid, "Private driver data not found!\n"); | |
961 | return 0; | |
962 | } | |
963 | ||
964 | entry = drv_data->device_props; | |
965 | if (!entry) { | |
966 | hid_err(hid, "Device properties not found!\n"); | |
967 | return 0; | |
968 | } | |
969 | ||
72529c65 | 970 | if (!entry->wdata.real_tag || !entry->wdata.real_name) { |
b96d23ec MM |
971 | hid_err(hid, "NULL pointer to string\n"); |
972 | return 0; | |
973 | } | |
974 | ||
72529c65 | 975 | count = scnprintf(buf, PAGE_SIZE, "%s: %s\n", entry->wdata.real_tag, entry->wdata.real_name); |
b96d23ec MM |
976 | return count; |
977 | } | |
978 | ||
979 | static ssize_t lg4ff_real_id_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) | |
980 | { | |
981 | /* Real ID is a read-only value */ | |
982 | return -EPERM; | |
983 | } | |
984 | static DEVICE_ATTR(real_id, S_IRUGO, lg4ff_real_id_show, lg4ff_real_id_store); | |
985 | ||
22bcefdc | 986 | #ifdef CONFIG_LEDS_CLASS |
2a552c30 | 987 | static void lg4ff_set_leds(struct hid_device *hid, u8 leds) |
22bcefdc | 988 | { |
c918fe78 MM |
989 | struct lg_drv_data *drv_data; |
990 | struct lg4ff_device_entry *entry; | |
991 | unsigned long flags; | |
c28abd8c | 992 | s32 *value; |
74479ba8 | 993 | |
c918fe78 MM |
994 | drv_data = hid_get_drvdata(hid); |
995 | if (!drv_data) { | |
996 | hid_err(hid, "Private driver data not found!\n"); | |
997 | return; | |
998 | } | |
999 | ||
1000 | entry = drv_data->device_props; | |
1001 | if (!entry) { | |
1002 | hid_err(hid, "Device properties not found!\n"); | |
1003 | return; | |
1004 | } | |
c28abd8c | 1005 | value = entry->report->field[0]->value; |
c918fe78 MM |
1006 | |
1007 | spin_lock_irqsave(&entry->report_lock, flags); | |
74479ba8 MM |
1008 | value[0] = 0xf8; |
1009 | value[1] = 0x12; | |
1010 | value[2] = leds; | |
1011 | value[3] = 0x00; | |
1012 | value[4] = 0x00; | |
1013 | value[5] = 0x00; | |
1014 | value[6] = 0x00; | |
c28abd8c | 1015 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 1016 | spin_unlock_irqrestore(&entry->report_lock, flags); |
22bcefdc SW |
1017 | } |
1018 | ||
1019 | static void lg4ff_led_set_brightness(struct led_classdev *led_cdev, | |
1020 | enum led_brightness value) | |
1021 | { | |
1022 | struct device *dev = led_cdev->dev->parent; | |
1023 | struct hid_device *hid = container_of(dev, struct hid_device, dev); | |
4629fd16 | 1024 | struct lg_drv_data *drv_data = hid_get_drvdata(hid); |
22bcefdc SW |
1025 | struct lg4ff_device_entry *entry; |
1026 | int i, state = 0; | |
1027 | ||
1028 | if (!drv_data) { | |
1029 | hid_err(hid, "Device data not found."); | |
1030 | return; | |
1031 | } | |
1032 | ||
371a1d9e | 1033 | entry = drv_data->device_props; |
22bcefdc SW |
1034 | |
1035 | if (!entry) { | |
1036 | hid_err(hid, "Device properties not found."); | |
1037 | return; | |
1038 | } | |
1039 | ||
1040 | for (i = 0; i < 5; i++) { | |
72529c65 | 1041 | if (led_cdev != entry->wdata.led[i]) |
22bcefdc | 1042 | continue; |
72529c65 | 1043 | state = (entry->wdata.led_state >> i) & 1; |
22bcefdc | 1044 | if (value == LED_OFF && state) { |
72529c65 MM |
1045 | entry->wdata.led_state &= ~(1 << i); |
1046 | lg4ff_set_leds(hid, entry->wdata.led_state); | |
22bcefdc | 1047 | } else if (value != LED_OFF && !state) { |
72529c65 MM |
1048 | entry->wdata.led_state |= 1 << i; |
1049 | lg4ff_set_leds(hid, entry->wdata.led_state); | |
22bcefdc SW |
1050 | } |
1051 | break; | |
1052 | } | |
1053 | } | |
1054 | ||
1055 | static enum led_brightness lg4ff_led_get_brightness(struct led_classdev *led_cdev) | |
1056 | { | |
1057 | struct device *dev = led_cdev->dev->parent; | |
1058 | struct hid_device *hid = container_of(dev, struct hid_device, dev); | |
4629fd16 | 1059 | struct lg_drv_data *drv_data = hid_get_drvdata(hid); |
22bcefdc SW |
1060 | struct lg4ff_device_entry *entry; |
1061 | int i, value = 0; | |
1062 | ||
1063 | if (!drv_data) { | |
1064 | hid_err(hid, "Device data not found."); | |
1065 | return LED_OFF; | |
1066 | } | |
1067 | ||
371a1d9e | 1068 | entry = drv_data->device_props; |
22bcefdc SW |
1069 | |
1070 | if (!entry) { | |
1071 | hid_err(hid, "Device properties not found."); | |
1072 | return LED_OFF; | |
1073 | } | |
1074 | ||
1075 | for (i = 0; i < 5; i++) | |
72529c65 MM |
1076 | if (led_cdev == entry->wdata.led[i]) { |
1077 | value = (entry->wdata.led_state >> i) & 1; | |
22bcefdc SW |
1078 | break; |
1079 | } | |
1080 | ||
1081 | return value ? LED_FULL : LED_OFF; | |
1082 | } | |
1083 | #endif | |
1084 | ||
e7c23449 MM |
1085 | static u16 lg4ff_identify_multimode_wheel(struct hid_device *hid, const u16 reported_product_id, const u16 bcdDevice) |
1086 | { | |
bbec1bd0 SW |
1087 | u32 current_mode; |
1088 | int i; | |
e7c23449 | 1089 | |
bbec1bd0 SW |
1090 | /* identify current mode from USB PID */ |
1091 | for (i = 1; i < ARRAY_SIZE(lg4ff_alternate_modes); i++) { | |
1092 | dbg_hid("Testing whether PID is %X\n", lg4ff_alternate_modes[i].product_id); | |
1093 | if (reported_product_id == lg4ff_alternate_modes[i].product_id) | |
1094 | break; | |
e7c23449 MM |
1095 | } |
1096 | ||
bbec1bd0 SW |
1097 | if (i == ARRAY_SIZE(lg4ff_alternate_modes)) |
1098 | return 0; | |
1099 | ||
1100 | current_mode = BIT(i); | |
1101 | ||
1102 | for (i = 0; i < ARRAY_SIZE(lg4ff_main_checklist); i++) { | |
1103 | const u16 mask = lg4ff_main_checklist[i]->mask; | |
1104 | const u16 result = lg4ff_main_checklist[i]->result; | |
1105 | const u16 real_product_id = lg4ff_main_checklist[i]->real_product_id; | |
e7c23449 | 1106 | |
bbec1bd0 SW |
1107 | if ((current_mode & lg4ff_main_checklist[i]->modes) && \ |
1108 | (bcdDevice & mask) == result) { | |
e7c23449 MM |
1109 | dbg_hid("Found wheel with real PID %X whose reported PID is %X\n", real_product_id, reported_product_id); |
1110 | return real_product_id; | |
1111 | } | |
1112 | } | |
1113 | ||
f31a2de3 MM |
1114 | /* No match found. This is either Driving Force or an unknown |
1115 | * wheel model, do not touch it */ | |
e7c23449 MM |
1116 | dbg_hid("Wheel with bcdDevice %X was not recognized as multimode wheel, leaving in its current mode\n", bcdDevice); |
1117 | return 0; | |
1118 | } | |
1119 | ||
1120 | static int lg4ff_handle_multimode_wheel(struct hid_device *hid, u16 *real_product_id, const u16 bcdDevice) | |
1121 | { | |
1122 | const u16 reported_product_id = hid->product; | |
1123 | int ret; | |
1124 | ||
1125 | *real_product_id = lg4ff_identify_multimode_wheel(hid, reported_product_id, bcdDevice); | |
1126 | /* Probed wheel is not a multimode wheel */ | |
1127 | if (!*real_product_id) { | |
1128 | *real_product_id = reported_product_id; | |
1129 | dbg_hid("Wheel is not a multimode wheel\n"); | |
1130 | return LG4FF_MMODE_NOT_MULTIMODE; | |
1131 | } | |
1132 | ||
1133 | /* Switch from "Driving Force" mode to native mode automatically. | |
1134 | * Otherwise keep the wheel in its current mode */ | |
1135 | if (reported_product_id == USB_DEVICE_ID_LOGITECH_WHEEL && | |
a54dc779 MM |
1136 | reported_product_id != *real_product_id && |
1137 | !lg4ff_no_autoswitch) { | |
f31a2de3 | 1138 | const struct lg4ff_compat_mode_switch *s = lg4ff_get_mode_switch_command(*real_product_id, *real_product_id); |
e7c23449 | 1139 | |
f31a2de3 | 1140 | if (!s) { |
e7c23449 | 1141 | hid_err(hid, "Invalid product id %X\n", *real_product_id); |
b96d23ec | 1142 | return LG4FF_MMODE_NOT_MULTIMODE; |
e7c23449 MM |
1143 | } |
1144 | ||
1145 | ret = lg4ff_switch_compatibility_mode(hid, s); | |
1146 | if (ret) { | |
1147 | /* Wheel could not have been switched to native mode, | |
1148 | * leave it in "Driving Force" mode and continue */ | |
1149 | hid_err(hid, "Unable to switch wheel mode, errno %d\n", ret); | |
b96d23ec | 1150 | return LG4FF_MMODE_IS_MULTIMODE; |
e7c23449 MM |
1151 | } |
1152 | return LG4FF_MMODE_SWITCHED; | |
1153 | } | |
1154 | ||
b96d23ec | 1155 | return LG4FF_MMODE_IS_MULTIMODE; |
e7c23449 MM |
1156 | } |
1157 | ||
1158 | ||
32c88cbc SW |
1159 | int lg4ff_init(struct hid_device *hid) |
1160 | { | |
1161 | struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list); | |
32c88cbc | 1162 | struct input_dev *dev = hidinput->input; |
c28abd8c MM |
1163 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; |
1164 | struct hid_report *report = list_entry(report_list->next, struct hid_report, list); | |
e7c23449 MM |
1165 | const struct usb_device_descriptor *udesc = &(hid_to_usb_dev(hid)->descriptor); |
1166 | const u16 bcdDevice = le16_to_cpu(udesc->bcdDevice); | |
5d9d60ad | 1167 | const struct lg4ff_multimode_wheel *mmode_wheel = NULL; |
30bb75d7 | 1168 | struct lg4ff_device_entry *entry; |
3b6b17b7 | 1169 | struct lg_drv_data *drv_data; |
b96d23ec MM |
1170 | int error, i, j; |
1171 | int mmode_ret, mmode_idx = -1; | |
e7c23449 | 1172 | u16 real_product_id; |
32c88cbc | 1173 | |
32c88cbc | 1174 | /* Check that the report looks ok */ |
0fb6bd06 | 1175 | if (!hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 7)) |
32c88cbc | 1176 | return -1; |
30bb75d7 | 1177 | |
72529c65 MM |
1178 | drv_data = hid_get_drvdata(hid); |
1179 | if (!drv_data) { | |
1180 | hid_err(hid, "Cannot add device, private driver data not allocated\n"); | |
1181 | return -1; | |
1182 | } | |
1183 | entry = kzalloc(sizeof(*entry), GFP_KERNEL); | |
1184 | if (!entry) | |
1185 | return -ENOMEM; | |
c918fe78 | 1186 | spin_lock_init(&entry->report_lock); |
c28abd8c | 1187 | entry->report = report; |
72529c65 MM |
1188 | drv_data->device_props = entry; |
1189 | ||
e7c23449 MM |
1190 | /* Check if a multimode wheel has been connected and |
1191 | * handle it appropriately */ | |
b96d23ec | 1192 | mmode_ret = lg4ff_handle_multimode_wheel(hid, &real_product_id, bcdDevice); |
e7c23449 MM |
1193 | |
1194 | /* Wheel has been told to switch to native mode. There is no point in going on | |
1195 | * with the initialization as the wheel will do a USB reset when it switches mode | |
1196 | */ | |
b96d23ec | 1197 | if (mmode_ret == LG4FF_MMODE_SWITCHED) |
e7c23449 | 1198 | return 0; |
72529c65 MM |
1199 | else if (mmode_ret < 0) { |
1200 | hid_err(hid, "Unable to switch device mode during initialization, errno %d\n", mmode_ret); | |
1201 | error = mmode_ret; | |
1202 | goto err_init; | |
1203 | } | |
e7c23449 | 1204 | |
7362cd22 MM |
1205 | /* Check what wheel has been connected */ |
1206 | for (i = 0; i < ARRAY_SIZE(lg4ff_devices); i++) { | |
1207 | if (hid->product == lg4ff_devices[i].product_id) { | |
1208 | dbg_hid("Found compatible device, product ID %04X\n", lg4ff_devices[i].product_id); | |
1209 | break; | |
1210 | } | |
1211 | } | |
1212 | ||
1213 | if (i == ARRAY_SIZE(lg4ff_devices)) { | |
9c2a6bd1 MM |
1214 | hid_err(hid, "This device is flagged to be handled by the lg4ff module but this module does not know how to handle it. " |
1215 | "Please report this as a bug to LKML, Simon Wood <simon@mungewell.org> or " | |
1216 | "Michal Maly <madcatxster@devoid-pointer.net>\n"); | |
72529c65 MM |
1217 | error = -1; |
1218 | goto err_init; | |
7362cd22 | 1219 | } |
32c88cbc | 1220 | |
b96d23ec MM |
1221 | if (mmode_ret == LG4FF_MMODE_IS_MULTIMODE) { |
1222 | for (mmode_idx = 0; mmode_idx < ARRAY_SIZE(lg4ff_multimode_wheels); mmode_idx++) { | |
1223 | if (real_product_id == lg4ff_multimode_wheels[mmode_idx].product_id) | |
1224 | break; | |
1225 | } | |
1226 | ||
1227 | if (mmode_idx == ARRAY_SIZE(lg4ff_multimode_wheels)) { | |
1228 | hid_err(hid, "Device product ID %X is not listed as a multimode wheel", real_product_id); | |
72529c65 MM |
1229 | error = -1; |
1230 | goto err_init; | |
b96d23ec MM |
1231 | } |
1232 | } | |
1233 | ||
7362cd22 MM |
1234 | /* Set supported force feedback capabilities */ |
1235 | for (j = 0; lg4ff_devices[i].ff_effects[j] >= 0; j++) | |
1236 | set_bit(lg4ff_devices[i].ff_effects[j], dev->ffbit); | |
32c88cbc | 1237 | |
d0afd848 | 1238 | error = input_ff_create_memless(dev, NULL, lg4ff_play); |
32c88cbc SW |
1239 | |
1240 | if (error) | |
72529c65 | 1241 | goto err_init; |
30bb75d7 | 1242 | |
5d9d60ad | 1243 | /* Initialize device properties */ |
b96d23ec MM |
1244 | if (mmode_ret == LG4FF_MMODE_IS_MULTIMODE) { |
1245 | BUG_ON(mmode_idx == -1); | |
5d9d60ad | 1246 | mmode_wheel = &lg4ff_multimode_wheels[mmode_idx]; |
b96d23ec | 1247 | } |
5d9d60ad | 1248 | lg4ff_init_wheel_data(&entry->wdata, &lg4ff_devices[i], mmode_wheel, real_product_id); |
30bb75d7 | 1249 | |
114a55cf SW |
1250 | /* Check if autocentering is available and |
1251 | * set the centering force to zero by default */ | |
1252 | if (test_bit(FF_AUTOCENTER, dev->ffbit)) { | |
e7c23449 MM |
1253 | /* Formula Force EX expects different autocentering command */ |
1254 | if ((bcdDevice >> 8) == LG4FF_FFEX_REV_MAJ && | |
1255 | (bcdDevice & 0xff) == LG4FF_FFEX_REV_MIN) | |
d0afd848 | 1256 | dev->ff->set_autocenter = lg4ff_set_autocenter_ffex; |
114a55cf | 1257 | else |
d0afd848 | 1258 | dev->ff->set_autocenter = lg4ff_set_autocenter_default; |
114a55cf SW |
1259 | |
1260 | dev->ff->set_autocenter(dev, 0); | |
1261 | } | |
1262 | ||
30bb75d7 MM |
1263 | /* Create sysfs interface */ |
1264 | error = device_create_file(&hid->dev, &dev_attr_range); | |
1265 | if (error) | |
d61a70ec | 1266 | hid_warn(hid, "Unable to create sysfs interface for \"range\", errno %d\n", error); |
b96d23ec MM |
1267 | if (mmode_ret == LG4FF_MMODE_IS_MULTIMODE) { |
1268 | error = device_create_file(&hid->dev, &dev_attr_real_id); | |
1269 | if (error) | |
d61a70ec | 1270 | hid_warn(hid, "Unable to create sysfs interface for \"real_id\", errno %d\n", error); |
b96d23ec MM |
1271 | error = device_create_file(&hid->dev, &dev_attr_alternate_modes); |
1272 | if (error) | |
d61a70ec | 1273 | hid_warn(hid, "Unable to create sysfs interface for \"alternate_modes\", errno %d\n", error); |
b96d23ec | 1274 | } |
30bb75d7 MM |
1275 | dbg_hid("sysfs interface created\n"); |
1276 | ||
1277 | /* Set the maximum range to start with */ | |
72529c65 MM |
1278 | entry->wdata.range = entry->wdata.max_range; |
1279 | if (entry->wdata.set_range) | |
1280 | entry->wdata.set_range(hid, entry->wdata.range); | |
30bb75d7 | 1281 | |
22bcefdc | 1282 | #ifdef CONFIG_LEDS_CLASS |
29fae1c8 | 1283 | /* register led subsystem - G27/G29 only */ |
72529c65 | 1284 | entry->wdata.led_state = 0; |
22bcefdc | 1285 | for (j = 0; j < 5; j++) |
72529c65 | 1286 | entry->wdata.led[j] = NULL; |
22bcefdc | 1287 | |
29fae1c8 SW |
1288 | if (lg4ff_devices[i].product_id == USB_DEVICE_ID_LOGITECH_G27_WHEEL || |
1289 | lg4ff_devices[i].product_id == USB_DEVICE_ID_LOGITECH_G29_WHEEL) { | |
22bcefdc SW |
1290 | struct led_classdev *led; |
1291 | size_t name_sz; | |
1292 | char *name; | |
1293 | ||
1294 | lg4ff_set_leds(hid, 0); | |
1295 | ||
1296 | name_sz = strlen(dev_name(&hid->dev)) + 8; | |
1297 | ||
1298 | for (j = 0; j < 5; j++) { | |
1299 | led = kzalloc(sizeof(struct led_classdev)+name_sz, GFP_KERNEL); | |
1300 | if (!led) { | |
1301 | hid_err(hid, "can't allocate memory for LED %d\n", j); | |
72529c65 | 1302 | goto err_leds; |
22bcefdc SW |
1303 | } |
1304 | ||
1305 | name = (void *)(&led[1]); | |
1306 | snprintf(name, name_sz, "%s::RPM%d", dev_name(&hid->dev), j+1); | |
1307 | led->name = name; | |
1308 | led->brightness = 0; | |
1309 | led->max_brightness = 1; | |
1310 | led->brightness_get = lg4ff_led_get_brightness; | |
1311 | led->brightness_set = lg4ff_led_set_brightness; | |
1312 | ||
72529c65 | 1313 | entry->wdata.led[j] = led; |
22bcefdc SW |
1314 | error = led_classdev_register(&hid->dev, led); |
1315 | ||
1316 | if (error) { | |
1317 | hid_err(hid, "failed to register LED %d. Aborting.\n", j); | |
72529c65 | 1318 | err_leds: |
22bcefdc SW |
1319 | /* Deregister LEDs (if any) */ |
1320 | for (j = 0; j < 5; j++) { | |
72529c65 MM |
1321 | led = entry->wdata.led[j]; |
1322 | entry->wdata.led[j] = NULL; | |
22bcefdc SW |
1323 | if (!led) |
1324 | continue; | |
1325 | led_classdev_unregister(led); | |
1326 | kfree(led); | |
1327 | } | |
1328 | goto out; /* Let the driver continue without LEDs */ | |
1329 | } | |
1330 | } | |
1331 | } | |
22bcefdc | 1332 | out: |
c6e6dc87 | 1333 | #endif |
64013800 | 1334 | hid_info(hid, "Force feedback support for Logitech Gaming Wheels\n"); |
32c88cbc | 1335 | return 0; |
72529c65 MM |
1336 | |
1337 | err_init: | |
1338 | drv_data->device_props = NULL; | |
1339 | kfree(entry); | |
1340 | return error; | |
32c88cbc SW |
1341 | } |
1342 | ||
30bb75d7 MM |
1343 | int lg4ff_deinit(struct hid_device *hid) |
1344 | { | |
30bb75d7 | 1345 | struct lg4ff_device_entry *entry; |
3b6b17b7 MM |
1346 | struct lg_drv_data *drv_data; |
1347 | ||
3b6b17b7 MM |
1348 | drv_data = hid_get_drvdata(hid); |
1349 | if (!drv_data) { | |
1350 | hid_err(hid, "Error while deinitializing device, no private driver data.\n"); | |
1351 | return -1; | |
30bb75d7 | 1352 | } |
3b6b17b7 | 1353 | entry = drv_data->device_props; |
e7c23449 MM |
1354 | if (!entry) |
1355 | goto out; /* Nothing more to do */ | |
1356 | ||
b96d23ec | 1357 | /* Multimode devices will have at least the "MODE_NATIVE" bit set */ |
72529c65 | 1358 | if (entry->wdata.alternate_modes) { |
b96d23ec MM |
1359 | device_remove_file(&hid->dev, &dev_attr_real_id); |
1360 | device_remove_file(&hid->dev, &dev_attr_alternate_modes); | |
1361 | } | |
1362 | ||
72529c65 | 1363 | device_remove_file(&hid->dev, &dev_attr_range); |
22bcefdc SW |
1364 | #ifdef CONFIG_LEDS_CLASS |
1365 | { | |
1366 | int j; | |
1367 | struct led_classdev *led; | |
1368 | ||
1369 | /* Deregister LEDs (if any) */ | |
1370 | for (j = 0; j < 5; j++) { | |
1371 | ||
72529c65 MM |
1372 | led = entry->wdata.led[j]; |
1373 | entry->wdata.led[j] = NULL; | |
22bcefdc SW |
1374 | if (!led) |
1375 | continue; | |
1376 | led_classdev_unregister(led); | |
1377 | kfree(led); | |
1378 | } | |
1379 | } | |
1380 | #endif | |
b211a638 MM |
1381 | hid_hw_stop(hid); |
1382 | drv_data->device_props = NULL; | |
22bcefdc | 1383 | |
3b6b17b7 | 1384 | kfree(entry); |
e7c23449 | 1385 | out: |
30bb75d7 MM |
1386 | dbg_hid("Device successfully unregistered\n"); |
1387 | return 0; | |
1388 | } |