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Commit | Line | Data |
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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 | |
b96d23ec | 36 | #define LG4FF_MMODE_IS_MULTIMODE 0 |
e7c23449 MM |
37 | #define LG4FF_MMODE_SWITCHED 1 |
38 | #define LG4FF_MMODE_NOT_MULTIMODE 2 | |
39 | ||
b96d23ec MM |
40 | #define LG4FF_MODE_NATIVE_IDX 0 |
41 | #define LG4FF_MODE_DFEX_IDX 1 | |
42 | #define LG4FF_MODE_DFP_IDX 2 | |
43 | #define LG4FF_MODE_G25_IDX 3 | |
44 | #define LG4FF_MODE_DFGT_IDX 4 | |
45 | #define LG4FF_MODE_G27_IDX 5 | |
29fae1c8 SW |
46 | #define LG4FF_MODE_G29_IDX 6 |
47 | #define LG4FF_MODE_MAX_IDX 7 | |
b96d23ec MM |
48 | |
49 | #define LG4FF_MODE_NATIVE BIT(LG4FF_MODE_NATIVE_IDX) | |
50 | #define LG4FF_MODE_DFEX BIT(LG4FF_MODE_DFEX_IDX) | |
51 | #define LG4FF_MODE_DFP BIT(LG4FF_MODE_DFP_IDX) | |
52 | #define LG4FF_MODE_G25 BIT(LG4FF_MODE_G25_IDX) | |
53 | #define LG4FF_MODE_DFGT BIT(LG4FF_MODE_DFGT_IDX) | |
54 | #define LG4FF_MODE_G27 BIT(LG4FF_MODE_G27_IDX) | |
29fae1c8 | 55 | #define LG4FF_MODE_G29 BIT(LG4FF_MODE_G29_IDX) |
b96d23ec MM |
56 | |
57 | #define LG4FF_DFEX_TAG "DF-EX" | |
58 | #define LG4FF_DFEX_NAME "Driving Force / Formula EX" | |
59 | #define LG4FF_DFP_TAG "DFP" | |
60 | #define LG4FF_DFP_NAME "Driving Force Pro" | |
61 | #define LG4FF_G25_TAG "G25" | |
62 | #define LG4FF_G25_NAME "G25 Racing Wheel" | |
63 | #define LG4FF_G27_TAG "G27" | |
64 | #define LG4FF_G27_NAME "G27 Racing Wheel" | |
29fae1c8 SW |
65 | #define LG4FF_G29_TAG "G29" |
66 | #define LG4FF_G29_NAME "G29 Racing Wheel" | |
b96d23ec MM |
67 | #define LG4FF_DFGT_TAG "DFGT" |
68 | #define LG4FF_DFGT_NAME "Driving Force GT" | |
69 | ||
e7c23449 MM |
70 | #define LG4FF_FFEX_REV_MAJ 0x21 |
71 | #define LG4FF_FFEX_REV_MIN 0x00 | |
72 | ||
d0afd848 MM |
73 | static void lg4ff_set_range_dfp(struct hid_device *hid, u16 range); |
74 | static void lg4ff_set_range_g25(struct hid_device *hid, u16 range); | |
30bb75d7 | 75 | |
72529c65 | 76 | struct lg4ff_wheel_data { |
5d9d60ad | 77 | const u32 product_id; |
961af46f | 78 | u16 combine; |
2a552c30 | 79 | u16 range; |
5d9d60ad MM |
80 | const u16 min_range; |
81 | const u16 max_range; | |
22bcefdc | 82 | #ifdef CONFIG_LEDS_CLASS |
2a552c30 | 83 | u8 led_state; |
22bcefdc SW |
84 | struct led_classdev *led[5]; |
85 | #endif | |
5d9d60ad MM |
86 | const u32 alternate_modes; |
87 | const char * const real_tag; | |
88 | const char * const real_name; | |
89 | const u16 real_product_id; | |
72529c65 | 90 | |
30bb75d7 MM |
91 | void (*set_range)(struct hid_device *hid, u16 range); |
92 | }; | |
93 | ||
72529c65 | 94 | struct lg4ff_device_entry { |
c918fe78 | 95 | spinlock_t report_lock; /* Protect output HID report */ |
c28abd8c | 96 | struct hid_report *report; |
72529c65 MM |
97 | struct lg4ff_wheel_data wdata; |
98 | }; | |
99 | ||
7362cd22 | 100 | static const signed short lg4ff_wheel_effects[] = { |
32c88cbc SW |
101 | FF_CONSTANT, |
102 | FF_AUTOCENTER, | |
103 | -1 | |
104 | }; | |
105 | ||
7362cd22 | 106 | struct lg4ff_wheel { |
2a552c30 | 107 | const u32 product_id; |
7362cd22 | 108 | const signed short *ff_effects; |
2a552c30 MM |
109 | const u16 min_range; |
110 | const u16 max_range; | |
30bb75d7 | 111 | void (*set_range)(struct hid_device *hid, u16 range); |
7362cd22 MM |
112 | }; |
113 | ||
e7c23449 | 114 | struct lg4ff_compat_mode_switch { |
2a552c30 MM |
115 | const u8 cmd_count; /* Number of commands to send */ |
116 | const u8 cmd[]; | |
e7c23449 MM |
117 | }; |
118 | ||
119 | struct lg4ff_wheel_ident_info { | |
bbec1bd0 | 120 | const u32 modes; |
e7c23449 MM |
121 | const u16 mask; |
122 | const u16 result; | |
123 | const u16 real_product_id; | |
124 | }; | |
125 | ||
b96d23ec MM |
126 | struct lg4ff_multimode_wheel { |
127 | const u16 product_id; | |
128 | const u32 alternate_modes; | |
129 | const char *real_tag; | |
130 | const char *real_name; | |
131 | }; | |
132 | ||
133 | struct lg4ff_alternate_mode { | |
134 | const u16 product_id; | |
135 | const char *tag; | |
136 | const char *name; | |
137 | }; | |
138 | ||
7362cd22 | 139 | static const struct lg4ff_wheel lg4ff_devices[] = { |
560bea30 | 140 | {USB_DEVICE_ID_LOGITECH_WINGMAN_FFG, lg4ff_wheel_effects, 40, 180, NULL}, |
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 | ||
c832f86e SW |
333 | int lg4ff_raw_event(struct hid_device *hdev, struct hid_report *report, |
334 | u8 *rd, int size, struct lg_drv_data *drv_data) | |
335 | { | |
b456634b | 336 | int offset; |
c832f86e SW |
337 | struct lg4ff_device_entry *entry = drv_data->device_props; |
338 | ||
339 | if (!entry) | |
340 | return 0; | |
341 | ||
342 | /* adjust HID report present combined pedals data */ | |
343 | if (entry->wdata.combine) { | |
344 | switch (entry->wdata.product_id) { | |
345 | case USB_DEVICE_ID_LOGITECH_WHEEL: | |
346 | rd[5] = rd[3]; | |
347 | rd[6] = 0x7F; | |
348 | return 1; | |
560bea30 | 349 | case USB_DEVICE_ID_LOGITECH_WINGMAN_FFG: |
c832f86e SW |
350 | case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL: |
351 | case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2: | |
352 | rd[4] = rd[3]; | |
353 | rd[5] = 0x7F; | |
354 | return 1; | |
355 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
356 | rd[5] = rd[4]; | |
357 | rd[6] = 0x7F; | |
358 | return 1; | |
b456634b SW |
359 | case USB_DEVICE_ID_LOGITECH_G25_WHEEL: |
360 | case USB_DEVICE_ID_LOGITECH_G27_WHEEL: | |
361 | offset = 5; | |
362 | break; | |
363 | case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL: | |
364 | case USB_DEVICE_ID_LOGITECH_G29_WHEEL: | |
365 | offset = 6; | |
366 | break; | |
367 | case USB_DEVICE_ID_LOGITECH_WII_WHEEL: | |
368 | offset = 3; | |
369 | break; | |
c832f86e SW |
370 | default: |
371 | return 0; | |
372 | } | |
b456634b SW |
373 | |
374 | /* Compute a combined axis when wheel does not supply it */ | |
375 | rd[offset] = (0xFF + rd[offset] - rd[offset+1]) >> 1; | |
376 | rd[offset+1] = 0x7F; | |
377 | return 1; | |
c832f86e SW |
378 | } |
379 | ||
380 | return 0; | |
381 | } | |
382 | ||
5d9d60ad MM |
383 | static void lg4ff_init_wheel_data(struct lg4ff_wheel_data * const wdata, const struct lg4ff_wheel *wheel, |
384 | const struct lg4ff_multimode_wheel *mmode_wheel, | |
385 | const u16 real_product_id) | |
386 | { | |
387 | u32 alternate_modes = 0; | |
388 | const char *real_tag = NULL; | |
389 | const char *real_name = NULL; | |
390 | ||
391 | if (mmode_wheel) { | |
392 | alternate_modes = mmode_wheel->alternate_modes; | |
393 | real_tag = mmode_wheel->real_tag; | |
394 | real_name = mmode_wheel->real_name; | |
395 | } | |
396 | ||
397 | { | |
398 | struct lg4ff_wheel_data t_wdata = { .product_id = wheel->product_id, | |
399 | .real_product_id = real_product_id, | |
961af46f | 400 | .combine = 0, |
5d9d60ad MM |
401 | .min_range = wheel->min_range, |
402 | .max_range = wheel->max_range, | |
403 | .set_range = wheel->set_range, | |
404 | .alternate_modes = alternate_modes, | |
405 | .real_tag = real_tag, | |
406 | .real_name = real_name }; | |
407 | ||
408 | memcpy(wdata, &t_wdata, sizeof(t_wdata)); | |
409 | } | |
410 | } | |
411 | ||
d0afd848 | 412 | static int lg4ff_play(struct input_dev *dev, void *data, struct ff_effect *effect) |
32c88cbc SW |
413 | { |
414 | struct hid_device *hid = input_get_drvdata(dev); | |
c918fe78 MM |
415 | struct lg4ff_device_entry *entry; |
416 | struct lg_drv_data *drv_data; | |
417 | unsigned long flags; | |
c28abd8c | 418 | s32 *value; |
32c88cbc SW |
419 | int x; |
420 | ||
c918fe78 MM |
421 | drv_data = hid_get_drvdata(hid); |
422 | if (!drv_data) { | |
423 | hid_err(hid, "Private driver data not found!\n"); | |
424 | return -EINVAL; | |
425 | } | |
426 | ||
427 | entry = drv_data->device_props; | |
428 | if (!entry) { | |
429 | hid_err(hid, "Device properties not found!\n"); | |
430 | return -EINVAL; | |
431 | } | |
c28abd8c | 432 | value = entry->report->field[0]->value; |
c918fe78 | 433 | |
a80fe5d6 | 434 | #define CLAMP(x) do { if (x < 0) x = 0; else if (x > 0xff) x = 0xff; } while (0) |
32c88cbc SW |
435 | |
436 | switch (effect->type) { | |
437 | case FF_CONSTANT: | |
438 | x = effect->u.ramp.start_level + 0x80; /* 0x80 is no force */ | |
439 | CLAMP(x); | |
56930e7a | 440 | |
c918fe78 | 441 | spin_lock_irqsave(&entry->report_lock, flags); |
56930e7a SW |
442 | if (x == 0x80) { |
443 | /* De-activate force in slot-1*/ | |
444 | value[0] = 0x13; | |
445 | value[1] = 0x00; | |
446 | value[2] = 0x00; | |
447 | value[3] = 0x00; | |
448 | value[4] = 0x00; | |
449 | value[5] = 0x00; | |
450 | value[6] = 0x00; | |
451 | ||
c28abd8c | 452 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 453 | spin_unlock_irqrestore(&entry->report_lock, flags); |
56930e7a SW |
454 | return 0; |
455 | } | |
456 | ||
74479ba8 MM |
457 | value[0] = 0x11; /* Slot 1 */ |
458 | value[1] = 0x08; | |
459 | value[2] = x; | |
460 | value[3] = 0x80; | |
461 | value[4] = 0x00; | |
462 | value[5] = 0x00; | |
463 | value[6] = 0x00; | |
32c88cbc | 464 | |
c28abd8c | 465 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 466 | spin_unlock_irqrestore(&entry->report_lock, flags); |
32c88cbc SW |
467 | break; |
468 | } | |
469 | return 0; | |
470 | } | |
471 | ||
6e2de8e0 MM |
472 | /* Sends default autocentering command compatible with |
473 | * all wheels except Formula Force EX */ | |
d0afd848 | 474 | static void lg4ff_set_autocenter_default(struct input_dev *dev, u16 magnitude) |
32c88cbc SW |
475 | { |
476 | struct hid_device *hid = input_get_drvdata(dev); | |
477 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; | |
478 | struct hid_report *report = list_entry(report_list->next, struct hid_report, list); | |
2a552c30 MM |
479 | s32 *value = report->field[0]->value; |
480 | u32 expand_a, expand_b; | |
1859762e SW |
481 | struct lg4ff_device_entry *entry; |
482 | struct lg_drv_data *drv_data; | |
c918fe78 | 483 | unsigned long flags; |
1859762e SW |
484 | |
485 | drv_data = hid_get_drvdata(hid); | |
486 | if (!drv_data) { | |
487 | hid_err(hid, "Private driver data not found!\n"); | |
488 | return; | |
489 | } | |
490 | ||
491 | entry = drv_data->device_props; | |
492 | if (!entry) { | |
493 | hid_err(hid, "Device properties not found!\n"); | |
494 | return; | |
495 | } | |
c28abd8c | 496 | value = entry->report->field[0]->value; |
f8c23156 | 497 | |
d2c02da5 | 498 | /* De-activate Auto-Center */ |
c918fe78 | 499 | spin_lock_irqsave(&entry->report_lock, flags); |
d2c02da5 SW |
500 | if (magnitude == 0) { |
501 | value[0] = 0xf5; | |
502 | value[1] = 0x00; | |
503 | value[2] = 0x00; | |
504 | value[3] = 0x00; | |
505 | value[4] = 0x00; | |
506 | value[5] = 0x00; | |
507 | value[6] = 0x00; | |
508 | ||
c28abd8c | 509 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 510 | spin_unlock_irqrestore(&entry->report_lock, flags); |
d2c02da5 SW |
511 | return; |
512 | } | |
513 | ||
f8c23156 SW |
514 | if (magnitude <= 0xaaaa) { |
515 | expand_a = 0x0c * magnitude; | |
516 | expand_b = 0x80 * magnitude; | |
517 | } else { | |
518 | expand_a = (0x0c * 0xaaaa) + 0x06 * (magnitude - 0xaaaa); | |
519 | expand_b = (0x80 * 0xaaaa) + 0xff * (magnitude - 0xaaaa); | |
520 | } | |
32c88cbc | 521 | |
1859762e | 522 | /* Adjust for non-MOMO wheels */ |
72529c65 | 523 | switch (entry->wdata.product_id) { |
1859762e SW |
524 | case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL: |
525 | case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2: | |
526 | break; | |
527 | default: | |
528 | expand_a = expand_a >> 1; | |
529 | break; | |
530 | } | |
531 | ||
74479ba8 MM |
532 | value[0] = 0xfe; |
533 | value[1] = 0x0d; | |
f8c23156 SW |
534 | value[2] = expand_a / 0xaaaa; |
535 | value[3] = expand_a / 0xaaaa; | |
536 | value[4] = expand_b / 0xaaaa; | |
74479ba8 MM |
537 | value[5] = 0x00; |
538 | value[6] = 0x00; | |
32c88cbc | 539 | |
c28abd8c | 540 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
d2c02da5 SW |
541 | |
542 | /* Activate Auto-Center */ | |
543 | value[0] = 0x14; | |
544 | value[1] = 0x00; | |
545 | value[2] = 0x00; | |
546 | value[3] = 0x00; | |
547 | value[4] = 0x00; | |
548 | value[5] = 0x00; | |
549 | value[6] = 0x00; | |
550 | ||
c28abd8c | 551 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 552 | spin_unlock_irqrestore(&entry->report_lock, flags); |
32c88cbc SW |
553 | } |
554 | ||
6e2de8e0 | 555 | /* Sends autocentering command compatible with Formula Force EX */ |
d0afd848 | 556 | static void lg4ff_set_autocenter_ffex(struct input_dev *dev, u16 magnitude) |
6e2de8e0 MM |
557 | { |
558 | struct hid_device *hid = input_get_drvdata(dev); | |
c918fe78 MM |
559 | struct lg4ff_device_entry *entry; |
560 | struct lg_drv_data *drv_data; | |
561 | unsigned long flags; | |
c28abd8c | 562 | s32 *value; |
6e2de8e0 | 563 | magnitude = magnitude * 90 / 65535; |
6e2de8e0 | 564 | |
c918fe78 MM |
565 | drv_data = hid_get_drvdata(hid); |
566 | if (!drv_data) { | |
567 | hid_err(hid, "Private driver data not found!\n"); | |
568 | return; | |
569 | } | |
570 | ||
571 | entry = drv_data->device_props; | |
572 | if (!entry) { | |
573 | hid_err(hid, "Device properties not found!\n"); | |
574 | return; | |
575 | } | |
c28abd8c | 576 | value = entry->report->field[0]->value; |
c918fe78 MM |
577 | |
578 | spin_lock_irqsave(&entry->report_lock, flags); | |
74479ba8 MM |
579 | value[0] = 0xfe; |
580 | value[1] = 0x03; | |
581 | value[2] = magnitude >> 14; | |
582 | value[3] = magnitude >> 14; | |
583 | value[4] = magnitude; | |
584 | value[5] = 0x00; | |
585 | value[6] = 0x00; | |
6e2de8e0 | 586 | |
c28abd8c | 587 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 588 | spin_unlock_irqrestore(&entry->report_lock, flags); |
6e2de8e0 MM |
589 | } |
590 | ||
30bb75d7 | 591 | /* Sends command to set range compatible with G25/G27/Driving Force GT */ |
d0afd848 | 592 | static void lg4ff_set_range_g25(struct hid_device *hid, u16 range) |
30bb75d7 | 593 | { |
c918fe78 MM |
594 | struct lg4ff_device_entry *entry; |
595 | struct lg_drv_data *drv_data; | |
596 | unsigned long flags; | |
c28abd8c | 597 | s32 *value; |
74479ba8 | 598 | |
c918fe78 MM |
599 | drv_data = hid_get_drvdata(hid); |
600 | if (!drv_data) { | |
601 | hid_err(hid, "Private driver data not found!\n"); | |
602 | return; | |
603 | } | |
604 | ||
605 | entry = drv_data->device_props; | |
606 | if (!entry) { | |
607 | hid_err(hid, "Device properties not found!\n"); | |
608 | return; | |
609 | } | |
c28abd8c | 610 | value = entry->report->field[0]->value; |
30bb75d7 MM |
611 | dbg_hid("G25/G27/DFGT: setting range to %u\n", range); |
612 | ||
c918fe78 | 613 | spin_lock_irqsave(&entry->report_lock, flags); |
74479ba8 MM |
614 | value[0] = 0xf8; |
615 | value[1] = 0x81; | |
616 | value[2] = range & 0x00ff; | |
617 | value[3] = (range & 0xff00) >> 8; | |
618 | value[4] = 0x00; | |
619 | value[5] = 0x00; | |
620 | value[6] = 0x00; | |
30bb75d7 | 621 | |
c28abd8c | 622 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 623 | spin_unlock_irqrestore(&entry->report_lock, flags); |
30bb75d7 MM |
624 | } |
625 | ||
626 | /* Sends commands to set range compatible with Driving Force Pro wheel */ | |
d0afd848 | 627 | static void lg4ff_set_range_dfp(struct hid_device *hid, u16 range) |
30bb75d7 | 628 | { |
c918fe78 MM |
629 | struct lg4ff_device_entry *entry; |
630 | struct lg_drv_data *drv_data; | |
631 | unsigned long flags; | |
c28abd8c MM |
632 | int start_left, start_right, full_range; |
633 | s32 *value; | |
74479ba8 | 634 | |
c918fe78 MM |
635 | drv_data = hid_get_drvdata(hid); |
636 | if (!drv_data) { | |
637 | hid_err(hid, "Private driver data not found!\n"); | |
638 | return; | |
639 | } | |
640 | ||
641 | entry = drv_data->device_props; | |
642 | if (!entry) { | |
643 | hid_err(hid, "Device properties not found!\n"); | |
644 | return; | |
645 | } | |
c28abd8c | 646 | value = entry->report->field[0]->value; |
30bb75d7 MM |
647 | dbg_hid("Driving Force Pro: setting range to %u\n", range); |
648 | ||
649 | /* Prepare "coarse" limit command */ | |
c918fe78 | 650 | spin_lock_irqsave(&entry->report_lock, flags); |
74479ba8 | 651 | value[0] = 0xf8; |
a80fe5d6 | 652 | value[1] = 0x00; /* Set later */ |
74479ba8 MM |
653 | value[2] = 0x00; |
654 | value[3] = 0x00; | |
655 | value[4] = 0x00; | |
656 | value[5] = 0x00; | |
657 | value[6] = 0x00; | |
30bb75d7 MM |
658 | |
659 | if (range > 200) { | |
c28abd8c | 660 | value[1] = 0x03; |
30bb75d7 MM |
661 | full_range = 900; |
662 | } else { | |
c28abd8c | 663 | value[1] = 0x02; |
30bb75d7 MM |
664 | full_range = 200; |
665 | } | |
c28abd8c | 666 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
30bb75d7 MM |
667 | |
668 | /* Prepare "fine" limit command */ | |
74479ba8 MM |
669 | value[0] = 0x81; |
670 | value[1] = 0x0b; | |
671 | value[2] = 0x00; | |
672 | value[3] = 0x00; | |
673 | value[4] = 0x00; | |
674 | value[5] = 0x00; | |
675 | value[6] = 0x00; | |
30bb75d7 MM |
676 | |
677 | if (range == 200 || range == 900) { /* Do not apply any fine limit */ | |
c28abd8c | 678 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 679 | spin_unlock_irqrestore(&entry->report_lock, flags); |
30bb75d7 MM |
680 | return; |
681 | } | |
682 | ||
683 | /* Construct fine limit command */ | |
684 | start_left = (((full_range - range + 1) * 2047) / full_range); | |
685 | start_right = 0xfff - start_left; | |
686 | ||
74479ba8 MM |
687 | value[2] = start_left >> 4; |
688 | value[3] = start_right >> 4; | |
689 | value[4] = 0xff; | |
690 | value[5] = (start_right & 0xe) << 4 | (start_left & 0xe); | |
691 | value[6] = 0xff; | |
30bb75d7 | 692 | |
c28abd8c | 693 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 694 | spin_unlock_irqrestore(&entry->report_lock, flags); |
30bb75d7 MM |
695 | } |
696 | ||
f31a2de3 MM |
697 | static const struct lg4ff_compat_mode_switch *lg4ff_get_mode_switch_command(const u16 real_product_id, const u16 target_product_id) |
698 | { | |
699 | switch (real_product_id) { | |
700 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
701 | switch (target_product_id) { | |
702 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
703 | return &lg4ff_mode_switch_ext01_dfp; | |
704 | /* DFP can only be switched to its native mode */ | |
705 | default: | |
706 | return NULL; | |
707 | } | |
708 | break; | |
709 | case USB_DEVICE_ID_LOGITECH_G25_WHEEL: | |
710 | switch (target_product_id) { | |
711 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
712 | return &lg4ff_mode_switch_ext01_dfp; | |
713 | case USB_DEVICE_ID_LOGITECH_G25_WHEEL: | |
714 | return &lg4ff_mode_switch_ext16_g25; | |
715 | /* G25 can only be switched to DFP mode or its native mode */ | |
716 | default: | |
717 | return NULL; | |
718 | } | |
719 | break; | |
720 | case USB_DEVICE_ID_LOGITECH_G27_WHEEL: | |
721 | switch (target_product_id) { | |
722 | case USB_DEVICE_ID_LOGITECH_WHEEL: | |
723 | return &lg4ff_mode_switch_ext09_dfex; | |
724 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
725 | return &lg4ff_mode_switch_ext09_dfp; | |
726 | case USB_DEVICE_ID_LOGITECH_G25_WHEEL: | |
727 | return &lg4ff_mode_switch_ext09_g25; | |
728 | case USB_DEVICE_ID_LOGITECH_G27_WHEEL: | |
729 | return &lg4ff_mode_switch_ext09_g27; | |
730 | /* G27 can only be switched to DF-EX, DFP, G25 or its native mode */ | |
731 | default: | |
732 | return NULL; | |
733 | } | |
734 | break; | |
29fae1c8 SW |
735 | case USB_DEVICE_ID_LOGITECH_G29_WHEEL: |
736 | switch (target_product_id) { | |
737 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
738 | return &lg4ff_mode_switch_ext09_dfp; | |
739 | case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL: | |
740 | return &lg4ff_mode_switch_ext09_dfgt; | |
741 | case USB_DEVICE_ID_LOGITECH_G25_WHEEL: | |
742 | return &lg4ff_mode_switch_ext09_g25; | |
743 | case USB_DEVICE_ID_LOGITECH_G27_WHEEL: | |
744 | return &lg4ff_mode_switch_ext09_g27; | |
745 | case USB_DEVICE_ID_LOGITECH_G29_WHEEL: | |
746 | return &lg4ff_mode_switch_ext09_g29; | |
747 | /* G29 can only be switched to DF-EX, DFP, DFGT, G25, G27 or its native mode */ | |
748 | default: | |
749 | return NULL; | |
750 | } | |
751 | break; | |
f31a2de3 MM |
752 | case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL: |
753 | switch (target_product_id) { | |
754 | case USB_DEVICE_ID_LOGITECH_WHEEL: | |
755 | return &lg4ff_mode_switch_ext09_dfex; | |
756 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
757 | return &lg4ff_mode_switch_ext09_dfp; | |
758 | case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL: | |
759 | return &lg4ff_mode_switch_ext09_dfgt; | |
760 | /* DFGT can only be switched to DF-EX, DFP or its native mode */ | |
761 | default: | |
762 | return NULL; | |
763 | } | |
764 | break; | |
765 | /* No other wheels have multiple modes */ | |
766 | default: | |
767 | return NULL; | |
768 | } | |
769 | } | |
770 | ||
e7c23449 | 771 | static int lg4ff_switch_compatibility_mode(struct hid_device *hid, const struct lg4ff_compat_mode_switch *s) |
96440c8a | 772 | { |
c918fe78 MM |
773 | struct lg4ff_device_entry *entry; |
774 | struct lg_drv_data *drv_data; | |
775 | unsigned long flags; | |
c28abd8c | 776 | s32 *value; |
e7c23449 | 777 | u8 i; |
96440c8a | 778 | |
c918fe78 MM |
779 | drv_data = hid_get_drvdata(hid); |
780 | if (!drv_data) { | |
781 | hid_err(hid, "Private driver data not found!\n"); | |
782 | return -EINVAL; | |
783 | } | |
784 | ||
785 | entry = drv_data->device_props; | |
786 | if (!entry) { | |
787 | hid_err(hid, "Device properties not found!\n"); | |
788 | return -EINVAL; | |
789 | } | |
c28abd8c | 790 | value = entry->report->field[0]->value; |
c918fe78 MM |
791 | |
792 | spin_lock_irqsave(&entry->report_lock, flags); | |
e7c23449 | 793 | for (i = 0; i < s->cmd_count; i++) { |
c1740d13 | 794 | u8 j; |
96440c8a | 795 | |
c1740d13 MM |
796 | for (j = 0; j < 7; j++) |
797 | value[j] = s->cmd[j + (7*i)]; | |
798 | ||
c28abd8c | 799 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
96440c8a | 800 | } |
c918fe78 | 801 | spin_unlock_irqrestore(&entry->report_lock, flags); |
c1740d13 | 802 | hid_hw_wait(hid); |
e7c23449 | 803 | return 0; |
96440c8a | 804 | } |
32c88cbc | 805 | |
b96d23ec MM |
806 | static ssize_t lg4ff_alternate_modes_show(struct device *dev, struct device_attribute *attr, char *buf) |
807 | { | |
808 | struct hid_device *hid = to_hid_device(dev); | |
809 | struct lg4ff_device_entry *entry; | |
810 | struct lg_drv_data *drv_data; | |
811 | ssize_t count = 0; | |
812 | int i; | |
813 | ||
814 | drv_data = hid_get_drvdata(hid); | |
815 | if (!drv_data) { | |
816 | hid_err(hid, "Private driver data not found!\n"); | |
817 | return 0; | |
818 | } | |
819 | ||
820 | entry = drv_data->device_props; | |
821 | if (!entry) { | |
822 | hid_err(hid, "Device properties not found!\n"); | |
823 | return 0; | |
824 | } | |
825 | ||
72529c65 | 826 | if (!entry->wdata.real_name) { |
b96d23ec MM |
827 | hid_err(hid, "NULL pointer to string\n"); |
828 | return 0; | |
829 | } | |
830 | ||
831 | for (i = 0; i < LG4FF_MODE_MAX_IDX; i++) { | |
72529c65 | 832 | if (entry->wdata.alternate_modes & BIT(i)) { |
b96d23ec MM |
833 | /* Print tag and full name */ |
834 | count += scnprintf(buf + count, PAGE_SIZE - count, "%s: %s", | |
835 | lg4ff_alternate_modes[i].tag, | |
72529c65 | 836 | !lg4ff_alternate_modes[i].product_id ? entry->wdata.real_name : lg4ff_alternate_modes[i].name); |
b96d23ec MM |
837 | if (count >= PAGE_SIZE - 1) |
838 | return count; | |
839 | ||
840 | /* Mark the currently active mode with an asterisk */ | |
72529c65 MM |
841 | if (lg4ff_alternate_modes[i].product_id == entry->wdata.product_id || |
842 | (lg4ff_alternate_modes[i].product_id == 0 && entry->wdata.product_id == entry->wdata.real_product_id)) | |
b96d23ec MM |
843 | count += scnprintf(buf + count, PAGE_SIZE - count, " *\n"); |
844 | else | |
845 | count += scnprintf(buf + count, PAGE_SIZE - count, "\n"); | |
846 | ||
847 | if (count >= PAGE_SIZE - 1) | |
848 | return count; | |
849 | } | |
850 | } | |
851 | ||
852 | return count; | |
853 | } | |
854 | ||
855 | static ssize_t lg4ff_alternate_modes_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) | |
856 | { | |
f31a2de3 MM |
857 | struct hid_device *hid = to_hid_device(dev); |
858 | struct lg4ff_device_entry *entry; | |
859 | struct lg_drv_data *drv_data; | |
860 | const struct lg4ff_compat_mode_switch *s; | |
861 | u16 target_product_id = 0; | |
862 | int i, ret; | |
863 | char *lbuf; | |
864 | ||
865 | drv_data = hid_get_drvdata(hid); | |
866 | if (!drv_data) { | |
867 | hid_err(hid, "Private driver data not found!\n"); | |
868 | return -EINVAL; | |
869 | } | |
870 | ||
871 | entry = drv_data->device_props; | |
872 | if (!entry) { | |
873 | hid_err(hid, "Device properties not found!\n"); | |
874 | return -EINVAL; | |
875 | } | |
876 | ||
877 | /* Allow \n at the end of the input parameter */ | |
878 | lbuf = kasprintf(GFP_KERNEL, "%s", buf); | |
879 | if (!lbuf) | |
880 | return -ENOMEM; | |
881 | ||
882 | i = strlen(lbuf); | |
883 | if (lbuf[i-1] == '\n') { | |
884 | if (i == 1) { | |
885 | kfree(lbuf); | |
886 | return -EINVAL; | |
887 | } | |
888 | lbuf[i-1] = '\0'; | |
889 | } | |
890 | ||
891 | for (i = 0; i < LG4FF_MODE_MAX_IDX; i++) { | |
892 | const u16 mode_product_id = lg4ff_alternate_modes[i].product_id; | |
893 | const char *tag = lg4ff_alternate_modes[i].tag; | |
894 | ||
72529c65 | 895 | if (entry->wdata.alternate_modes & BIT(i)) { |
f31a2de3 MM |
896 | if (!strcmp(tag, lbuf)) { |
897 | if (!mode_product_id) | |
72529c65 | 898 | target_product_id = entry->wdata.real_product_id; |
f31a2de3 MM |
899 | else |
900 | target_product_id = mode_product_id; | |
901 | break; | |
902 | } | |
903 | } | |
904 | } | |
905 | ||
906 | if (i == LG4FF_MODE_MAX_IDX) { | |
907 | hid_info(hid, "Requested mode \"%s\" is not supported by the device\n", lbuf); | |
908 | kfree(lbuf); | |
909 | return -EINVAL; | |
910 | } | |
911 | kfree(lbuf); /* Not needed anymore */ | |
912 | ||
72529c65 | 913 | if (target_product_id == entry->wdata.product_id) /* Nothing to do */ |
f31a2de3 MM |
914 | return count; |
915 | ||
916 | /* Automatic switching has to be disabled for the switch to DF-EX mode to work correctly */ | |
917 | if (target_product_id == USB_DEVICE_ID_LOGITECH_WHEEL && !lg4ff_no_autoswitch) { | |
918 | 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 | 919 | entry->wdata.real_name); |
f31a2de3 MM |
920 | return -EINVAL; |
921 | } | |
922 | ||
923 | /* Take care of hardware limitations */ | |
72529c65 MM |
924 | if ((entry->wdata.real_product_id == USB_DEVICE_ID_LOGITECH_DFP_WHEEL || entry->wdata.real_product_id == USB_DEVICE_ID_LOGITECH_G25_WHEEL) && |
925 | entry->wdata.product_id > target_product_id) { | |
926 | hid_info(hid, "\"%s\" cannot be switched back into \"%s\" mode\n", entry->wdata.real_name, lg4ff_alternate_modes[i].name); | |
f31a2de3 MM |
927 | return -EINVAL; |
928 | } | |
929 | ||
72529c65 | 930 | s = lg4ff_get_mode_switch_command(entry->wdata.real_product_id, target_product_id); |
f31a2de3 MM |
931 | if (!s) { |
932 | hid_err(hid, "Invalid target product ID %X\n", target_product_id); | |
933 | return -EINVAL; | |
934 | } | |
935 | ||
936 | ret = lg4ff_switch_compatibility_mode(hid, s); | |
937 | return (ret == 0 ? count : ret); | |
b96d23ec MM |
938 | } |
939 | static DEVICE_ATTR(alternate_modes, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH, lg4ff_alternate_modes_show, lg4ff_alternate_modes_store); | |
940 | ||
961af46f SW |
941 | static ssize_t lg4ff_combine_show(struct device *dev, struct device_attribute *attr, |
942 | char *buf) | |
943 | { | |
944 | struct hid_device *hid = to_hid_device(dev); | |
945 | struct lg4ff_device_entry *entry; | |
946 | struct lg_drv_data *drv_data; | |
947 | size_t count; | |
948 | ||
949 | drv_data = hid_get_drvdata(hid); | |
950 | if (!drv_data) { | |
951 | hid_err(hid, "Private driver data not found!\n"); | |
952 | return 0; | |
953 | } | |
954 | ||
955 | entry = drv_data->device_props; | |
956 | if (!entry) { | |
957 | hid_err(hid, "Device properties not found!\n"); | |
958 | return 0; | |
959 | } | |
960 | ||
961 | count = scnprintf(buf, PAGE_SIZE, "%u\n", entry->wdata.combine); | |
962 | return count; | |
963 | } | |
964 | ||
965 | static ssize_t lg4ff_combine_store(struct device *dev, struct device_attribute *attr, | |
966 | const char *buf, size_t count) | |
967 | { | |
968 | struct hid_device *hid = to_hid_device(dev); | |
969 | struct lg4ff_device_entry *entry; | |
970 | struct lg_drv_data *drv_data; | |
971 | u16 combine = simple_strtoul(buf, NULL, 10); | |
972 | ||
973 | drv_data = hid_get_drvdata(hid); | |
974 | if (!drv_data) { | |
975 | hid_err(hid, "Private driver data not found!\n"); | |
976 | return -EINVAL; | |
977 | } | |
978 | ||
979 | entry = drv_data->device_props; | |
980 | if (!entry) { | |
981 | hid_err(hid, "Device properties not found!\n"); | |
982 | return -EINVAL; | |
983 | } | |
984 | ||
985 | if (combine > 1) | |
986 | combine = 1; | |
987 | ||
988 | entry->wdata.combine = combine; | |
989 | return count; | |
990 | } | |
991 | static DEVICE_ATTR(combine_pedals, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH, lg4ff_combine_show, lg4ff_combine_store); | |
992 | ||
fbf85e2a MM |
993 | /* Export the currently set range of the wheel */ |
994 | static ssize_t lg4ff_range_show(struct device *dev, struct device_attribute *attr, | |
995 | char *buf) | |
30bb75d7 | 996 | { |
30bb75d7 | 997 | struct hid_device *hid = to_hid_device(dev); |
3b6b17b7 MM |
998 | struct lg4ff_device_entry *entry; |
999 | struct lg_drv_data *drv_data; | |
30bb75d7 MM |
1000 | size_t count; |
1001 | ||
3b6b17b7 MM |
1002 | drv_data = hid_get_drvdata(hid); |
1003 | if (!drv_data) { | |
1004 | hid_err(hid, "Private driver data not found!\n"); | |
1005 | return 0; | |
30bb75d7 | 1006 | } |
3b6b17b7 MM |
1007 | |
1008 | entry = drv_data->device_props; | |
1009 | if (!entry) { | |
1010 | hid_err(hid, "Device properties not found!\n"); | |
30bb75d7 MM |
1011 | return 0; |
1012 | } | |
1013 | ||
72529c65 | 1014 | count = scnprintf(buf, PAGE_SIZE, "%u\n", entry->wdata.range); |
30bb75d7 MM |
1015 | return count; |
1016 | } | |
1017 | ||
1018 | /* Set range to user specified value, call appropriate function | |
1019 | * according to the type of the wheel */ | |
fbf85e2a MM |
1020 | static ssize_t lg4ff_range_store(struct device *dev, struct device_attribute *attr, |
1021 | const char *buf, size_t count) | |
30bb75d7 | 1022 | { |
30bb75d7 | 1023 | struct hid_device *hid = to_hid_device(dev); |
3b6b17b7 MM |
1024 | struct lg4ff_device_entry *entry; |
1025 | struct lg_drv_data *drv_data; | |
2a552c30 | 1026 | u16 range = simple_strtoul(buf, NULL, 10); |
30bb75d7 | 1027 | |
3b6b17b7 MM |
1028 | drv_data = hid_get_drvdata(hid); |
1029 | if (!drv_data) { | |
1030 | hid_err(hid, "Private driver data not found!\n"); | |
29ff6657 | 1031 | return -EINVAL; |
30bb75d7 | 1032 | } |
3b6b17b7 MM |
1033 | |
1034 | entry = drv_data->device_props; | |
1035 | if (!entry) { | |
1036 | hid_err(hid, "Device properties not found!\n"); | |
29ff6657 | 1037 | return -EINVAL; |
30bb75d7 MM |
1038 | } |
1039 | ||
1040 | if (range == 0) | |
72529c65 | 1041 | range = entry->wdata.max_range; |
30bb75d7 MM |
1042 | |
1043 | /* Check if the wheel supports range setting | |
1044 | * and that the range is within limits for the wheel */ | |
72529c65 MM |
1045 | if (entry->wdata.set_range && range >= entry->wdata.min_range && range <= entry->wdata.max_range) { |
1046 | entry->wdata.set_range(hid, range); | |
1047 | entry->wdata.range = range; | |
30bb75d7 MM |
1048 | } |
1049 | ||
1050 | return count; | |
1051 | } | |
fbf85e2a | 1052 | static DEVICE_ATTR(range, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH, lg4ff_range_show, lg4ff_range_store); |
30bb75d7 | 1053 | |
b96d23ec MM |
1054 | static ssize_t lg4ff_real_id_show(struct device *dev, struct device_attribute *attr, char *buf) |
1055 | { | |
1056 | struct hid_device *hid = to_hid_device(dev); | |
1057 | struct lg4ff_device_entry *entry; | |
1058 | struct lg_drv_data *drv_data; | |
1059 | size_t count; | |
1060 | ||
1061 | drv_data = hid_get_drvdata(hid); | |
1062 | if (!drv_data) { | |
1063 | hid_err(hid, "Private driver data not found!\n"); | |
1064 | return 0; | |
1065 | } | |
1066 | ||
1067 | entry = drv_data->device_props; | |
1068 | if (!entry) { | |
1069 | hid_err(hid, "Device properties not found!\n"); | |
1070 | return 0; | |
1071 | } | |
1072 | ||
72529c65 | 1073 | if (!entry->wdata.real_tag || !entry->wdata.real_name) { |
b96d23ec MM |
1074 | hid_err(hid, "NULL pointer to string\n"); |
1075 | return 0; | |
1076 | } | |
1077 | ||
72529c65 | 1078 | count = scnprintf(buf, PAGE_SIZE, "%s: %s\n", entry->wdata.real_tag, entry->wdata.real_name); |
b96d23ec MM |
1079 | return count; |
1080 | } | |
1081 | ||
1082 | static ssize_t lg4ff_real_id_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) | |
1083 | { | |
1084 | /* Real ID is a read-only value */ | |
1085 | return -EPERM; | |
1086 | } | |
1087 | static DEVICE_ATTR(real_id, S_IRUGO, lg4ff_real_id_show, lg4ff_real_id_store); | |
1088 | ||
22bcefdc | 1089 | #ifdef CONFIG_LEDS_CLASS |
2a552c30 | 1090 | static void lg4ff_set_leds(struct hid_device *hid, u8 leds) |
22bcefdc | 1091 | { |
c918fe78 MM |
1092 | struct lg_drv_data *drv_data; |
1093 | struct lg4ff_device_entry *entry; | |
1094 | unsigned long flags; | |
c28abd8c | 1095 | s32 *value; |
74479ba8 | 1096 | |
c918fe78 MM |
1097 | drv_data = hid_get_drvdata(hid); |
1098 | if (!drv_data) { | |
1099 | hid_err(hid, "Private driver data not found!\n"); | |
1100 | return; | |
1101 | } | |
1102 | ||
1103 | entry = drv_data->device_props; | |
1104 | if (!entry) { | |
1105 | hid_err(hid, "Device properties not found!\n"); | |
1106 | return; | |
1107 | } | |
c28abd8c | 1108 | value = entry->report->field[0]->value; |
c918fe78 MM |
1109 | |
1110 | spin_lock_irqsave(&entry->report_lock, flags); | |
74479ba8 MM |
1111 | value[0] = 0xf8; |
1112 | value[1] = 0x12; | |
1113 | value[2] = leds; | |
1114 | value[3] = 0x00; | |
1115 | value[4] = 0x00; | |
1116 | value[5] = 0x00; | |
1117 | value[6] = 0x00; | |
c28abd8c | 1118 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 1119 | spin_unlock_irqrestore(&entry->report_lock, flags); |
22bcefdc SW |
1120 | } |
1121 | ||
1122 | static void lg4ff_led_set_brightness(struct led_classdev *led_cdev, | |
1123 | enum led_brightness value) | |
1124 | { | |
1125 | struct device *dev = led_cdev->dev->parent; | |
ee79a8f8 | 1126 | struct hid_device *hid = to_hid_device(dev); |
4629fd16 | 1127 | struct lg_drv_data *drv_data = hid_get_drvdata(hid); |
22bcefdc SW |
1128 | struct lg4ff_device_entry *entry; |
1129 | int i, state = 0; | |
1130 | ||
1131 | if (!drv_data) { | |
1132 | hid_err(hid, "Device data not found."); | |
1133 | return; | |
1134 | } | |
1135 | ||
371a1d9e | 1136 | entry = drv_data->device_props; |
22bcefdc SW |
1137 | |
1138 | if (!entry) { | |
1139 | hid_err(hid, "Device properties not found."); | |
1140 | return; | |
1141 | } | |
1142 | ||
1143 | for (i = 0; i < 5; i++) { | |
72529c65 | 1144 | if (led_cdev != entry->wdata.led[i]) |
22bcefdc | 1145 | continue; |
72529c65 | 1146 | state = (entry->wdata.led_state >> i) & 1; |
22bcefdc | 1147 | if (value == LED_OFF && state) { |
72529c65 MM |
1148 | entry->wdata.led_state &= ~(1 << i); |
1149 | lg4ff_set_leds(hid, entry->wdata.led_state); | |
22bcefdc | 1150 | } else if (value != LED_OFF && !state) { |
72529c65 MM |
1151 | entry->wdata.led_state |= 1 << i; |
1152 | lg4ff_set_leds(hid, entry->wdata.led_state); | |
22bcefdc SW |
1153 | } |
1154 | break; | |
1155 | } | |
1156 | } | |
1157 | ||
1158 | static enum led_brightness lg4ff_led_get_brightness(struct led_classdev *led_cdev) | |
1159 | { | |
1160 | struct device *dev = led_cdev->dev->parent; | |
ee79a8f8 | 1161 | struct hid_device *hid = to_hid_device(dev); |
4629fd16 | 1162 | struct lg_drv_data *drv_data = hid_get_drvdata(hid); |
22bcefdc SW |
1163 | struct lg4ff_device_entry *entry; |
1164 | int i, value = 0; | |
1165 | ||
1166 | if (!drv_data) { | |
1167 | hid_err(hid, "Device data not found."); | |
1168 | return LED_OFF; | |
1169 | } | |
1170 | ||
371a1d9e | 1171 | entry = drv_data->device_props; |
22bcefdc SW |
1172 | |
1173 | if (!entry) { | |
1174 | hid_err(hid, "Device properties not found."); | |
1175 | return LED_OFF; | |
1176 | } | |
1177 | ||
1178 | for (i = 0; i < 5; i++) | |
72529c65 MM |
1179 | if (led_cdev == entry->wdata.led[i]) { |
1180 | value = (entry->wdata.led_state >> i) & 1; | |
22bcefdc SW |
1181 | break; |
1182 | } | |
1183 | ||
1184 | return value ? LED_FULL : LED_OFF; | |
1185 | } | |
1186 | #endif | |
1187 | ||
e7c23449 MM |
1188 | static u16 lg4ff_identify_multimode_wheel(struct hid_device *hid, const u16 reported_product_id, const u16 bcdDevice) |
1189 | { | |
bbec1bd0 SW |
1190 | u32 current_mode; |
1191 | int i; | |
e7c23449 | 1192 | |
bbec1bd0 SW |
1193 | /* identify current mode from USB PID */ |
1194 | for (i = 1; i < ARRAY_SIZE(lg4ff_alternate_modes); i++) { | |
1195 | dbg_hid("Testing whether PID is %X\n", lg4ff_alternate_modes[i].product_id); | |
1196 | if (reported_product_id == lg4ff_alternate_modes[i].product_id) | |
1197 | break; | |
e7c23449 MM |
1198 | } |
1199 | ||
bbec1bd0 SW |
1200 | if (i == ARRAY_SIZE(lg4ff_alternate_modes)) |
1201 | return 0; | |
1202 | ||
1203 | current_mode = BIT(i); | |
1204 | ||
1205 | for (i = 0; i < ARRAY_SIZE(lg4ff_main_checklist); i++) { | |
1206 | const u16 mask = lg4ff_main_checklist[i]->mask; | |
1207 | const u16 result = lg4ff_main_checklist[i]->result; | |
1208 | const u16 real_product_id = lg4ff_main_checklist[i]->real_product_id; | |
e7c23449 | 1209 | |
bbec1bd0 SW |
1210 | if ((current_mode & lg4ff_main_checklist[i]->modes) && \ |
1211 | (bcdDevice & mask) == result) { | |
e7c23449 MM |
1212 | dbg_hid("Found wheel with real PID %X whose reported PID is %X\n", real_product_id, reported_product_id); |
1213 | return real_product_id; | |
1214 | } | |
1215 | } | |
1216 | ||
f31a2de3 MM |
1217 | /* No match found. This is either Driving Force or an unknown |
1218 | * wheel model, do not touch it */ | |
e7c23449 MM |
1219 | dbg_hid("Wheel with bcdDevice %X was not recognized as multimode wheel, leaving in its current mode\n", bcdDevice); |
1220 | return 0; | |
1221 | } | |
1222 | ||
1223 | static int lg4ff_handle_multimode_wheel(struct hid_device *hid, u16 *real_product_id, const u16 bcdDevice) | |
1224 | { | |
1225 | const u16 reported_product_id = hid->product; | |
1226 | int ret; | |
1227 | ||
1228 | *real_product_id = lg4ff_identify_multimode_wheel(hid, reported_product_id, bcdDevice); | |
1229 | /* Probed wheel is not a multimode wheel */ | |
1230 | if (!*real_product_id) { | |
1231 | *real_product_id = reported_product_id; | |
1232 | dbg_hid("Wheel is not a multimode wheel\n"); | |
1233 | return LG4FF_MMODE_NOT_MULTIMODE; | |
1234 | } | |
1235 | ||
1236 | /* Switch from "Driving Force" mode to native mode automatically. | |
1237 | * Otherwise keep the wheel in its current mode */ | |
1238 | if (reported_product_id == USB_DEVICE_ID_LOGITECH_WHEEL && | |
a54dc779 MM |
1239 | reported_product_id != *real_product_id && |
1240 | !lg4ff_no_autoswitch) { | |
f31a2de3 | 1241 | const struct lg4ff_compat_mode_switch *s = lg4ff_get_mode_switch_command(*real_product_id, *real_product_id); |
e7c23449 | 1242 | |
f31a2de3 | 1243 | if (!s) { |
e7c23449 | 1244 | hid_err(hid, "Invalid product id %X\n", *real_product_id); |
b96d23ec | 1245 | return LG4FF_MMODE_NOT_MULTIMODE; |
e7c23449 MM |
1246 | } |
1247 | ||
1248 | ret = lg4ff_switch_compatibility_mode(hid, s); | |
1249 | if (ret) { | |
1250 | /* Wheel could not have been switched to native mode, | |
1251 | * leave it in "Driving Force" mode and continue */ | |
1252 | hid_err(hid, "Unable to switch wheel mode, errno %d\n", ret); | |
b96d23ec | 1253 | return LG4FF_MMODE_IS_MULTIMODE; |
e7c23449 MM |
1254 | } |
1255 | return LG4FF_MMODE_SWITCHED; | |
1256 | } | |
1257 | ||
b96d23ec | 1258 | return LG4FF_MMODE_IS_MULTIMODE; |
e7c23449 MM |
1259 | } |
1260 | ||
1261 | ||
32c88cbc SW |
1262 | int lg4ff_init(struct hid_device *hid) |
1263 | { | |
1264 | struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list); | |
32c88cbc | 1265 | struct input_dev *dev = hidinput->input; |
c28abd8c MM |
1266 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; |
1267 | struct hid_report *report = list_entry(report_list->next, struct hid_report, list); | |
e7c23449 MM |
1268 | const struct usb_device_descriptor *udesc = &(hid_to_usb_dev(hid)->descriptor); |
1269 | const u16 bcdDevice = le16_to_cpu(udesc->bcdDevice); | |
5d9d60ad | 1270 | const struct lg4ff_multimode_wheel *mmode_wheel = NULL; |
30bb75d7 | 1271 | struct lg4ff_device_entry *entry; |
3b6b17b7 | 1272 | struct lg_drv_data *drv_data; |
b96d23ec MM |
1273 | int error, i, j; |
1274 | int mmode_ret, mmode_idx = -1; | |
e7c23449 | 1275 | u16 real_product_id; |
32c88cbc | 1276 | |
32c88cbc | 1277 | /* Check that the report looks ok */ |
0fb6bd06 | 1278 | if (!hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 7)) |
32c88cbc | 1279 | return -1; |
30bb75d7 | 1280 | |
72529c65 MM |
1281 | drv_data = hid_get_drvdata(hid); |
1282 | if (!drv_data) { | |
1283 | hid_err(hid, "Cannot add device, private driver data not allocated\n"); | |
1284 | return -1; | |
1285 | } | |
1286 | entry = kzalloc(sizeof(*entry), GFP_KERNEL); | |
1287 | if (!entry) | |
1288 | return -ENOMEM; | |
c918fe78 | 1289 | spin_lock_init(&entry->report_lock); |
c28abd8c | 1290 | entry->report = report; |
72529c65 MM |
1291 | drv_data->device_props = entry; |
1292 | ||
e7c23449 MM |
1293 | /* Check if a multimode wheel has been connected and |
1294 | * handle it appropriately */ | |
b96d23ec | 1295 | mmode_ret = lg4ff_handle_multimode_wheel(hid, &real_product_id, bcdDevice); |
e7c23449 MM |
1296 | |
1297 | /* Wheel has been told to switch to native mode. There is no point in going on | |
1298 | * with the initialization as the wheel will do a USB reset when it switches mode | |
1299 | */ | |
b96d23ec | 1300 | if (mmode_ret == LG4FF_MMODE_SWITCHED) |
e7c23449 | 1301 | return 0; |
72529c65 MM |
1302 | else if (mmode_ret < 0) { |
1303 | hid_err(hid, "Unable to switch device mode during initialization, errno %d\n", mmode_ret); | |
1304 | error = mmode_ret; | |
1305 | goto err_init; | |
1306 | } | |
e7c23449 | 1307 | |
7362cd22 MM |
1308 | /* Check what wheel has been connected */ |
1309 | for (i = 0; i < ARRAY_SIZE(lg4ff_devices); i++) { | |
1310 | if (hid->product == lg4ff_devices[i].product_id) { | |
1311 | dbg_hid("Found compatible device, product ID %04X\n", lg4ff_devices[i].product_id); | |
1312 | break; | |
1313 | } | |
1314 | } | |
1315 | ||
1316 | if (i == ARRAY_SIZE(lg4ff_devices)) { | |
9c2a6bd1 MM |
1317 | hid_err(hid, "This device is flagged to be handled by the lg4ff module but this module does not know how to handle it. " |
1318 | "Please report this as a bug to LKML, Simon Wood <simon@mungewell.org> or " | |
1319 | "Michal Maly <madcatxster@devoid-pointer.net>\n"); | |
72529c65 MM |
1320 | error = -1; |
1321 | goto err_init; | |
7362cd22 | 1322 | } |
32c88cbc | 1323 | |
b96d23ec MM |
1324 | if (mmode_ret == LG4FF_MMODE_IS_MULTIMODE) { |
1325 | for (mmode_idx = 0; mmode_idx < ARRAY_SIZE(lg4ff_multimode_wheels); mmode_idx++) { | |
1326 | if (real_product_id == lg4ff_multimode_wheels[mmode_idx].product_id) | |
1327 | break; | |
1328 | } | |
1329 | ||
1330 | if (mmode_idx == ARRAY_SIZE(lg4ff_multimode_wheels)) { | |
1331 | hid_err(hid, "Device product ID %X is not listed as a multimode wheel", real_product_id); | |
72529c65 MM |
1332 | error = -1; |
1333 | goto err_init; | |
b96d23ec MM |
1334 | } |
1335 | } | |
1336 | ||
7362cd22 MM |
1337 | /* Set supported force feedback capabilities */ |
1338 | for (j = 0; lg4ff_devices[i].ff_effects[j] >= 0; j++) | |
1339 | set_bit(lg4ff_devices[i].ff_effects[j], dev->ffbit); | |
32c88cbc | 1340 | |
d0afd848 | 1341 | error = input_ff_create_memless(dev, NULL, lg4ff_play); |
32c88cbc SW |
1342 | |
1343 | if (error) | |
72529c65 | 1344 | goto err_init; |
30bb75d7 | 1345 | |
5d9d60ad | 1346 | /* Initialize device properties */ |
b96d23ec MM |
1347 | if (mmode_ret == LG4FF_MMODE_IS_MULTIMODE) { |
1348 | BUG_ON(mmode_idx == -1); | |
5d9d60ad | 1349 | mmode_wheel = &lg4ff_multimode_wheels[mmode_idx]; |
b96d23ec | 1350 | } |
5d9d60ad | 1351 | lg4ff_init_wheel_data(&entry->wdata, &lg4ff_devices[i], mmode_wheel, real_product_id); |
30bb75d7 | 1352 | |
114a55cf SW |
1353 | /* Check if autocentering is available and |
1354 | * set the centering force to zero by default */ | |
1355 | if (test_bit(FF_AUTOCENTER, dev->ffbit)) { | |
e7c23449 MM |
1356 | /* Formula Force EX expects different autocentering command */ |
1357 | if ((bcdDevice >> 8) == LG4FF_FFEX_REV_MAJ && | |
1358 | (bcdDevice & 0xff) == LG4FF_FFEX_REV_MIN) | |
d0afd848 | 1359 | dev->ff->set_autocenter = lg4ff_set_autocenter_ffex; |
114a55cf | 1360 | else |
d0afd848 | 1361 | dev->ff->set_autocenter = lg4ff_set_autocenter_default; |
114a55cf SW |
1362 | |
1363 | dev->ff->set_autocenter(dev, 0); | |
1364 | } | |
1365 | ||
30bb75d7 | 1366 | /* Create sysfs interface */ |
961af46f SW |
1367 | error = device_create_file(&hid->dev, &dev_attr_combine_pedals); |
1368 | if (error) | |
1369 | hid_warn(hid, "Unable to create sysfs interface for \"combine\", errno %d\n", error); | |
30bb75d7 MM |
1370 | error = device_create_file(&hid->dev, &dev_attr_range); |
1371 | if (error) | |
d61a70ec | 1372 | hid_warn(hid, "Unable to create sysfs interface for \"range\", errno %d\n", error); |
b96d23ec MM |
1373 | if (mmode_ret == LG4FF_MMODE_IS_MULTIMODE) { |
1374 | error = device_create_file(&hid->dev, &dev_attr_real_id); | |
1375 | if (error) | |
d61a70ec | 1376 | hid_warn(hid, "Unable to create sysfs interface for \"real_id\", errno %d\n", error); |
b96d23ec MM |
1377 | error = device_create_file(&hid->dev, &dev_attr_alternate_modes); |
1378 | if (error) | |
d61a70ec | 1379 | hid_warn(hid, "Unable to create sysfs interface for \"alternate_modes\", errno %d\n", error); |
b96d23ec | 1380 | } |
30bb75d7 MM |
1381 | dbg_hid("sysfs interface created\n"); |
1382 | ||
1383 | /* Set the maximum range to start with */ | |
72529c65 MM |
1384 | entry->wdata.range = entry->wdata.max_range; |
1385 | if (entry->wdata.set_range) | |
1386 | entry->wdata.set_range(hid, entry->wdata.range); | |
30bb75d7 | 1387 | |
22bcefdc | 1388 | #ifdef CONFIG_LEDS_CLASS |
29fae1c8 | 1389 | /* register led subsystem - G27/G29 only */ |
72529c65 | 1390 | entry->wdata.led_state = 0; |
22bcefdc | 1391 | for (j = 0; j < 5; j++) |
72529c65 | 1392 | entry->wdata.led[j] = NULL; |
22bcefdc | 1393 | |
29fae1c8 SW |
1394 | if (lg4ff_devices[i].product_id == USB_DEVICE_ID_LOGITECH_G27_WHEEL || |
1395 | lg4ff_devices[i].product_id == USB_DEVICE_ID_LOGITECH_G29_WHEEL) { | |
22bcefdc SW |
1396 | struct led_classdev *led; |
1397 | size_t name_sz; | |
1398 | char *name; | |
1399 | ||
1400 | lg4ff_set_leds(hid, 0); | |
1401 | ||
1402 | name_sz = strlen(dev_name(&hid->dev)) + 8; | |
1403 | ||
1404 | for (j = 0; j < 5; j++) { | |
1405 | led = kzalloc(sizeof(struct led_classdev)+name_sz, GFP_KERNEL); | |
1406 | if (!led) { | |
1407 | hid_err(hid, "can't allocate memory for LED %d\n", j); | |
72529c65 | 1408 | goto err_leds; |
22bcefdc SW |
1409 | } |
1410 | ||
1411 | name = (void *)(&led[1]); | |
1412 | snprintf(name, name_sz, "%s::RPM%d", dev_name(&hid->dev), j+1); | |
1413 | led->name = name; | |
1414 | led->brightness = 0; | |
1415 | led->max_brightness = 1; | |
1416 | led->brightness_get = lg4ff_led_get_brightness; | |
1417 | led->brightness_set = lg4ff_led_set_brightness; | |
1418 | ||
72529c65 | 1419 | entry->wdata.led[j] = led; |
22bcefdc SW |
1420 | error = led_classdev_register(&hid->dev, led); |
1421 | ||
1422 | if (error) { | |
1423 | hid_err(hid, "failed to register LED %d. Aborting.\n", j); | |
72529c65 | 1424 | err_leds: |
22bcefdc SW |
1425 | /* Deregister LEDs (if any) */ |
1426 | for (j = 0; j < 5; j++) { | |
72529c65 MM |
1427 | led = entry->wdata.led[j]; |
1428 | entry->wdata.led[j] = NULL; | |
22bcefdc SW |
1429 | if (!led) |
1430 | continue; | |
1431 | led_classdev_unregister(led); | |
1432 | kfree(led); | |
1433 | } | |
1434 | goto out; /* Let the driver continue without LEDs */ | |
1435 | } | |
1436 | } | |
1437 | } | |
22bcefdc | 1438 | out: |
c6e6dc87 | 1439 | #endif |
64013800 | 1440 | hid_info(hid, "Force feedback support for Logitech Gaming Wheels\n"); |
32c88cbc | 1441 | return 0; |
72529c65 MM |
1442 | |
1443 | err_init: | |
1444 | drv_data->device_props = NULL; | |
1445 | kfree(entry); | |
1446 | return error; | |
32c88cbc SW |
1447 | } |
1448 | ||
30bb75d7 MM |
1449 | int lg4ff_deinit(struct hid_device *hid) |
1450 | { | |
30bb75d7 | 1451 | struct lg4ff_device_entry *entry; |
3b6b17b7 MM |
1452 | struct lg_drv_data *drv_data; |
1453 | ||
3b6b17b7 MM |
1454 | drv_data = hid_get_drvdata(hid); |
1455 | if (!drv_data) { | |
1456 | hid_err(hid, "Error while deinitializing device, no private driver data.\n"); | |
1457 | return -1; | |
30bb75d7 | 1458 | } |
3b6b17b7 | 1459 | entry = drv_data->device_props; |
e7c23449 MM |
1460 | if (!entry) |
1461 | goto out; /* Nothing more to do */ | |
1462 | ||
b96d23ec | 1463 | /* Multimode devices will have at least the "MODE_NATIVE" bit set */ |
72529c65 | 1464 | if (entry->wdata.alternate_modes) { |
b96d23ec MM |
1465 | device_remove_file(&hid->dev, &dev_attr_real_id); |
1466 | device_remove_file(&hid->dev, &dev_attr_alternate_modes); | |
1467 | } | |
1468 | ||
961af46f | 1469 | device_remove_file(&hid->dev, &dev_attr_combine_pedals); |
72529c65 | 1470 | device_remove_file(&hid->dev, &dev_attr_range); |
22bcefdc SW |
1471 | #ifdef CONFIG_LEDS_CLASS |
1472 | { | |
1473 | int j; | |
1474 | struct led_classdev *led; | |
1475 | ||
1476 | /* Deregister LEDs (if any) */ | |
1477 | for (j = 0; j < 5; j++) { | |
1478 | ||
72529c65 MM |
1479 | led = entry->wdata.led[j]; |
1480 | entry->wdata.led[j] = NULL; | |
22bcefdc SW |
1481 | if (!led) |
1482 | continue; | |
1483 | led_classdev_unregister(led); | |
1484 | kfree(led); | |
1485 | } | |
1486 | } | |
1487 | #endif | |
b211a638 MM |
1488 | hid_hw_stop(hid); |
1489 | drv_data->device_props = NULL; | |
22bcefdc | 1490 | |
3b6b17b7 | 1491 | kfree(entry); |
e7c23449 | 1492 | out: |
30bb75d7 MM |
1493 | dbg_hid("Device successfully unregistered\n"); |
1494 | return 0; | |
1495 | } |