Commit | Line | Data |
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1a59d1b8 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
32c88cbc | 2 | /* |
64013800 | 3 | * Force feedback support for Logitech Gaming Wheels |
32c88cbc | 4 | * |
64013800 SW |
5 | * Including G27, G25, DFP, DFGT, FFEX, Momo, Momo2 & |
6 | * Speed Force Wireless (WiiWheel) | |
32c88cbc SW |
7 | * |
8 | * Copyright (c) 2010 Simon Wood <simon@mungewell.org> | |
9 | */ | |
10 | ||
11 | /* | |
32c88cbc SW |
12 | */ |
13 | ||
14 | ||
15 | #include <linux/input.h> | |
16 | #include <linux/usb.h> | |
17 | #include <linux/hid.h> | |
18 | ||
19 | #include "usbhid/usbhid.h" | |
20 | #include "hid-lg.h" | |
a54dc779 | 21 | #include "hid-lg4ff.h" |
7362cd22 | 22 | #include "hid-ids.h" |
32c88cbc | 23 | |
b96d23ec | 24 | #define LG4FF_MMODE_IS_MULTIMODE 0 |
e7c23449 MM |
25 | #define LG4FF_MMODE_SWITCHED 1 |
26 | #define LG4FF_MMODE_NOT_MULTIMODE 2 | |
27 | ||
b96d23ec MM |
28 | #define LG4FF_MODE_NATIVE_IDX 0 |
29 | #define LG4FF_MODE_DFEX_IDX 1 | |
30 | #define LG4FF_MODE_DFP_IDX 2 | |
31 | #define LG4FF_MODE_G25_IDX 3 | |
32 | #define LG4FF_MODE_DFGT_IDX 4 | |
33 | #define LG4FF_MODE_G27_IDX 5 | |
29fae1c8 SW |
34 | #define LG4FF_MODE_G29_IDX 6 |
35 | #define LG4FF_MODE_MAX_IDX 7 | |
b96d23ec MM |
36 | |
37 | #define LG4FF_MODE_NATIVE BIT(LG4FF_MODE_NATIVE_IDX) | |
38 | #define LG4FF_MODE_DFEX BIT(LG4FF_MODE_DFEX_IDX) | |
39 | #define LG4FF_MODE_DFP BIT(LG4FF_MODE_DFP_IDX) | |
40 | #define LG4FF_MODE_G25 BIT(LG4FF_MODE_G25_IDX) | |
41 | #define LG4FF_MODE_DFGT BIT(LG4FF_MODE_DFGT_IDX) | |
42 | #define LG4FF_MODE_G27 BIT(LG4FF_MODE_G27_IDX) | |
29fae1c8 | 43 | #define LG4FF_MODE_G29 BIT(LG4FF_MODE_G29_IDX) |
b96d23ec MM |
44 | |
45 | #define LG4FF_DFEX_TAG "DF-EX" | |
46 | #define LG4FF_DFEX_NAME "Driving Force / Formula EX" | |
47 | #define LG4FF_DFP_TAG "DFP" | |
48 | #define LG4FF_DFP_NAME "Driving Force Pro" | |
49 | #define LG4FF_G25_TAG "G25" | |
50 | #define LG4FF_G25_NAME "G25 Racing Wheel" | |
51 | #define LG4FF_G27_TAG "G27" | |
52 | #define LG4FF_G27_NAME "G27 Racing Wheel" | |
29fae1c8 SW |
53 | #define LG4FF_G29_TAG "G29" |
54 | #define LG4FF_G29_NAME "G29 Racing Wheel" | |
b96d23ec MM |
55 | #define LG4FF_DFGT_TAG "DFGT" |
56 | #define LG4FF_DFGT_NAME "Driving Force GT" | |
57 | ||
e7c23449 MM |
58 | #define LG4FF_FFEX_REV_MAJ 0x21 |
59 | #define LG4FF_FFEX_REV_MIN 0x00 | |
60 | ||
d0afd848 MM |
61 | static void lg4ff_set_range_dfp(struct hid_device *hid, u16 range); |
62 | static void lg4ff_set_range_g25(struct hid_device *hid, u16 range); | |
30bb75d7 | 63 | |
72529c65 | 64 | struct lg4ff_wheel_data { |
5d9d60ad | 65 | const u32 product_id; |
961af46f | 66 | u16 combine; |
2a552c30 | 67 | u16 range; |
5d9d60ad MM |
68 | const u16 min_range; |
69 | const u16 max_range; | |
22bcefdc | 70 | #ifdef CONFIG_LEDS_CLASS |
2a552c30 | 71 | u8 led_state; |
22bcefdc SW |
72 | struct led_classdev *led[5]; |
73 | #endif | |
5d9d60ad MM |
74 | const u32 alternate_modes; |
75 | const char * const real_tag; | |
76 | const char * const real_name; | |
77 | const u16 real_product_id; | |
72529c65 | 78 | |
30bb75d7 MM |
79 | void (*set_range)(struct hid_device *hid, u16 range); |
80 | }; | |
81 | ||
72529c65 | 82 | struct lg4ff_device_entry { |
c918fe78 | 83 | spinlock_t report_lock; /* Protect output HID report */ |
c28abd8c | 84 | struct hid_report *report; |
72529c65 MM |
85 | struct lg4ff_wheel_data wdata; |
86 | }; | |
87 | ||
7362cd22 | 88 | static const signed short lg4ff_wheel_effects[] = { |
32c88cbc SW |
89 | FF_CONSTANT, |
90 | FF_AUTOCENTER, | |
91 | -1 | |
92 | }; | |
93 | ||
e41b3cda JW |
94 | static const signed short no_wheel_effects[] = { |
95 | -1 | |
96 | }; | |
97 | ||
7362cd22 | 98 | struct lg4ff_wheel { |
2a552c30 | 99 | const u32 product_id; |
7362cd22 | 100 | const signed short *ff_effects; |
2a552c30 MM |
101 | const u16 min_range; |
102 | const u16 max_range; | |
30bb75d7 | 103 | void (*set_range)(struct hid_device *hid, u16 range); |
7362cd22 MM |
104 | }; |
105 | ||
e7c23449 | 106 | struct lg4ff_compat_mode_switch { |
2a552c30 MM |
107 | const u8 cmd_count; /* Number of commands to send */ |
108 | const u8 cmd[]; | |
e7c23449 MM |
109 | }; |
110 | ||
111 | struct lg4ff_wheel_ident_info { | |
bbec1bd0 | 112 | const u32 modes; |
e7c23449 MM |
113 | const u16 mask; |
114 | const u16 result; | |
115 | const u16 real_product_id; | |
116 | }; | |
117 | ||
b96d23ec MM |
118 | struct lg4ff_multimode_wheel { |
119 | const u16 product_id; | |
120 | const u32 alternate_modes; | |
121 | const char *real_tag; | |
122 | const char *real_name; | |
123 | }; | |
124 | ||
125 | struct lg4ff_alternate_mode { | |
126 | const u16 product_id; | |
127 | const char *tag; | |
128 | const char *name; | |
129 | }; | |
130 | ||
7362cd22 | 131 | static const struct lg4ff_wheel lg4ff_devices[] = { |
e41b3cda | 132 | {USB_DEVICE_ID_LOGITECH_WINGMAN_FG, no_wheel_effects, 40, 180, NULL}, |
560bea30 | 133 | {USB_DEVICE_ID_LOGITECH_WINGMAN_FFG, lg4ff_wheel_effects, 40, 180, NULL}, |
30bb75d7 MM |
134 | {USB_DEVICE_ID_LOGITECH_WHEEL, lg4ff_wheel_effects, 40, 270, NULL}, |
135 | {USB_DEVICE_ID_LOGITECH_MOMO_WHEEL, lg4ff_wheel_effects, 40, 270, NULL}, | |
d0afd848 MM |
136 | {USB_DEVICE_ID_LOGITECH_DFP_WHEEL, lg4ff_wheel_effects, 40, 900, lg4ff_set_range_dfp}, |
137 | {USB_DEVICE_ID_LOGITECH_G25_WHEEL, lg4ff_wheel_effects, 40, 900, lg4ff_set_range_g25}, | |
138 | {USB_DEVICE_ID_LOGITECH_DFGT_WHEEL, lg4ff_wheel_effects, 40, 900, lg4ff_set_range_g25}, | |
139 | {USB_DEVICE_ID_LOGITECH_G27_WHEEL, lg4ff_wheel_effects, 40, 900, lg4ff_set_range_g25}, | |
29fae1c8 | 140 | {USB_DEVICE_ID_LOGITECH_G29_WHEEL, lg4ff_wheel_effects, 40, 900, lg4ff_set_range_g25}, |
30bb75d7 MM |
141 | {USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2, lg4ff_wheel_effects, 40, 270, NULL}, |
142 | {USB_DEVICE_ID_LOGITECH_WII_WHEEL, lg4ff_wheel_effects, 40, 270, NULL} | |
7362cd22 MM |
143 | }; |
144 | ||
b96d23ec MM |
145 | static const struct lg4ff_multimode_wheel lg4ff_multimode_wheels[] = { |
146 | {USB_DEVICE_ID_LOGITECH_DFP_WHEEL, | |
147 | LG4FF_MODE_NATIVE | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, | |
148 | LG4FF_DFP_TAG, LG4FF_DFP_NAME}, | |
149 | {USB_DEVICE_ID_LOGITECH_G25_WHEEL, | |
150 | LG4FF_MODE_NATIVE | LG4FF_MODE_G25 | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, | |
151 | LG4FF_G25_TAG, LG4FF_G25_NAME}, | |
152 | {USB_DEVICE_ID_LOGITECH_DFGT_WHEEL, | |
153 | LG4FF_MODE_NATIVE | LG4FF_MODE_DFGT | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, | |
154 | LG4FF_DFGT_TAG, LG4FF_DFGT_NAME}, | |
155 | {USB_DEVICE_ID_LOGITECH_G27_WHEEL, | |
156 | LG4FF_MODE_NATIVE | LG4FF_MODE_G27 | LG4FF_MODE_G25 | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, | |
157 | LG4FF_G27_TAG, LG4FF_G27_NAME}, | |
29fae1c8 SW |
158 | {USB_DEVICE_ID_LOGITECH_G29_WHEEL, |
159 | LG4FF_MODE_NATIVE | LG4FF_MODE_G29 | LG4FF_MODE_G27 | LG4FF_MODE_G25 | LG4FF_MODE_DFGT | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, | |
160 | LG4FF_G29_TAG, LG4FF_G29_NAME}, | |
b96d23ec MM |
161 | }; |
162 | ||
163 | static const struct lg4ff_alternate_mode lg4ff_alternate_modes[] = { | |
164 | [LG4FF_MODE_NATIVE_IDX] = {0, "native", ""}, | |
165 | [LG4FF_MODE_DFEX_IDX] = {USB_DEVICE_ID_LOGITECH_WHEEL, LG4FF_DFEX_TAG, LG4FF_DFEX_NAME}, | |
166 | [LG4FF_MODE_DFP_IDX] = {USB_DEVICE_ID_LOGITECH_DFP_WHEEL, LG4FF_DFP_TAG, LG4FF_DFP_NAME}, | |
167 | [LG4FF_MODE_G25_IDX] = {USB_DEVICE_ID_LOGITECH_G25_WHEEL, LG4FF_G25_TAG, LG4FF_G25_NAME}, | |
168 | [LG4FF_MODE_DFGT_IDX] = {USB_DEVICE_ID_LOGITECH_DFGT_WHEEL, LG4FF_DFGT_TAG, LG4FF_DFGT_NAME}, | |
29fae1c8 SW |
169 | [LG4FF_MODE_G27_IDX] = {USB_DEVICE_ID_LOGITECH_G27_WHEEL, LG4FF_G27_TAG, LG4FF_G27_NAME}, |
170 | [LG4FF_MODE_G29_IDX] = {USB_DEVICE_ID_LOGITECH_G29_WHEEL, LG4FF_G29_TAG, LG4FF_G29_NAME}, | |
b96d23ec MM |
171 | }; |
172 | ||
e7c23449 MM |
173 | /* Multimode wheel identificators */ |
174 | static const struct lg4ff_wheel_ident_info lg4ff_dfp_ident_info = { | |
bbec1bd0 | 175 | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, |
e7c23449 MM |
176 | 0xf000, |
177 | 0x1000, | |
178 | USB_DEVICE_ID_LOGITECH_DFP_WHEEL | |
179 | }; | |
180 | ||
181 | static const struct lg4ff_wheel_ident_info lg4ff_g25_ident_info = { | |
bbec1bd0 | 182 | LG4FF_MODE_G25 | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, |
e7c23449 MM |
183 | 0xff00, |
184 | 0x1200, | |
185 | USB_DEVICE_ID_LOGITECH_G25_WHEEL | |
186 | }; | |
187 | ||
188 | static const struct lg4ff_wheel_ident_info lg4ff_g27_ident_info = { | |
bbec1bd0 | 189 | LG4FF_MODE_G27 | LG4FF_MODE_G25 | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, |
e7c23449 MM |
190 | 0xfff0, |
191 | 0x1230, | |
192 | USB_DEVICE_ID_LOGITECH_G27_WHEEL | |
96440c8a MM |
193 | }; |
194 | ||
e7c23449 | 195 | static const struct lg4ff_wheel_ident_info lg4ff_dfgt_ident_info = { |
bbec1bd0 | 196 | LG4FF_MODE_DFGT | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, |
e7c23449 MM |
197 | 0xff00, |
198 | 0x1300, | |
199 | USB_DEVICE_ID_LOGITECH_DFGT_WHEEL | |
96440c8a MM |
200 | }; |
201 | ||
29fae1c8 SW |
202 | static const struct lg4ff_wheel_ident_info lg4ff_g29_ident_info = { |
203 | LG4FF_MODE_G29 | LG4FF_MODE_G27 | LG4FF_MODE_G25 | LG4FF_MODE_DFGT | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, | |
204 | 0xfff8, | |
205 | 0x1350, | |
206 | USB_DEVICE_ID_LOGITECH_G29_WHEEL | |
207 | }; | |
208 | ||
209 | static const struct lg4ff_wheel_ident_info lg4ff_g29_ident_info2 = { | |
210 | LG4FF_MODE_G29 | LG4FF_MODE_G27 | LG4FF_MODE_G25 | LG4FF_MODE_DFGT | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, | |
211 | 0xff00, | |
212 | 0x8900, | |
213 | USB_DEVICE_ID_LOGITECH_G29_WHEEL | |
214 | }; | |
215 | ||
e7c23449 | 216 | /* Multimode wheel identification checklists */ |
bbec1bd0 | 217 | static const struct lg4ff_wheel_ident_info *lg4ff_main_checklist[] = { |
29fae1c8 SW |
218 | &lg4ff_g29_ident_info, |
219 | &lg4ff_g29_ident_info2, | |
bbec1bd0 SW |
220 | &lg4ff_dfgt_ident_info, |
221 | &lg4ff_g27_ident_info, | |
222 | &lg4ff_g25_ident_info, | |
223 | &lg4ff_dfp_ident_info | |
e7c23449 MM |
224 | }; |
225 | ||
226 | /* Compatibility mode switching commands */ | |
f31a2de3 MM |
227 | /* EXT_CMD9 - Understood by G27 and DFGT */ |
228 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_dfex = { | |
229 | 2, | |
230 | {0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* Revert mode upon USB reset */ | |
231 | 0xf8, 0x09, 0x00, 0x01, 0x00, 0x00, 0x00} /* Switch mode to DF-EX with detach */ | |
96440c8a MM |
232 | }; |
233 | ||
f31a2de3 | 234 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_dfp = { |
96440c8a | 235 | 2, |
f31a2de3 MM |
236 | {0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* Revert mode upon USB reset */ |
237 | 0xf8, 0x09, 0x01, 0x01, 0x00, 0x00, 0x00} /* Switch mode to DFP with detach */ | |
96440c8a MM |
238 | }; |
239 | ||
f31a2de3 MM |
240 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_g25 = { |
241 | 2, | |
242 | {0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* Revert mode upon USB reset */ | |
243 | 0xf8, 0x09, 0x02, 0x01, 0x00, 0x00, 0x00} /* Switch mode to G25 with detach */ | |
96440c8a MM |
244 | }; |
245 | ||
f31a2de3 | 246 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_dfgt = { |
96440c8a | 247 | 2, |
f31a2de3 MM |
248 | {0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* Revert mode upon USB reset */ |
249 | 0xf8, 0x09, 0x03, 0x01, 0x00, 0x00, 0x00} /* Switch mode to DFGT with detach */ | |
250 | }; | |
251 | ||
252 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_g27 = { | |
253 | 2, | |
254 | {0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* Revert mode upon USB reset */ | |
255 | 0xf8, 0x09, 0x04, 0x01, 0x00, 0x00, 0x00} /* Switch mode to G27 with detach */ | |
256 | }; | |
257 | ||
29fae1c8 SW |
258 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_g29 = { |
259 | 2, | |
260 | {0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* Revert mode upon USB reset */ | |
261 | 0xf8, 0x09, 0x05, 0x01, 0x01, 0x00, 0x00} /* Switch mode to G29 with detach */ | |
262 | }; | |
263 | ||
f31a2de3 MM |
264 | /* EXT_CMD1 - Understood by DFP, G25, G27 and DFGT */ |
265 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext01_dfp = { | |
266 | 1, | |
267 | {0xf8, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00} | |
268 | }; | |
269 | ||
270 | /* EXT_CMD16 - Understood by G25 and G27 */ | |
271 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext16_g25 = { | |
272 | 1, | |
273 | {0xf8, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00} | |
96440c8a MM |
274 | }; |
275 | ||
2b24a960 | 276 | /* Recalculates X axis value accordingly to currently selected range */ |
2a552c30 | 277 | static s32 lg4ff_adjust_dfp_x_axis(s32 value, u16 range) |
2b24a960 | 278 | { |
2a552c30 MM |
279 | u16 max_range; |
280 | s32 new_value; | |
2b24a960 MM |
281 | |
282 | if (range == 900) | |
283 | return value; | |
284 | else if (range == 200) | |
285 | return value; | |
286 | else if (range < 200) | |
287 | max_range = 200; | |
288 | else | |
289 | max_range = 900; | |
290 | ||
291 | new_value = 8192 + mult_frac(value - 8192, max_range, range); | |
292 | if (new_value < 0) | |
293 | return 0; | |
294 | else if (new_value > 16383) | |
295 | return 16383; | |
296 | else | |
297 | return new_value; | |
298 | } | |
299 | ||
300 | int lg4ff_adjust_input_event(struct hid_device *hid, struct hid_field *field, | |
2a552c30 | 301 | struct hid_usage *usage, s32 value, struct lg_drv_data *drv_data) |
2b24a960 MM |
302 | { |
303 | struct lg4ff_device_entry *entry = drv_data->device_props; | |
2a552c30 | 304 | s32 new_value = 0; |
2b24a960 MM |
305 | |
306 | if (!entry) { | |
307 | hid_err(hid, "Device properties not found"); | |
308 | return 0; | |
309 | } | |
310 | ||
72529c65 | 311 | switch (entry->wdata.product_id) { |
2b24a960 MM |
312 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: |
313 | switch (usage->code) { | |
314 | case ABS_X: | |
72529c65 | 315 | new_value = lg4ff_adjust_dfp_x_axis(value, entry->wdata.range); |
2b24a960 MM |
316 | input_event(field->hidinput->input, usage->type, usage->code, new_value); |
317 | return 1; | |
318 | default: | |
319 | return 0; | |
320 | } | |
321 | default: | |
322 | return 0; | |
323 | } | |
324 | } | |
325 | ||
c832f86e SW |
326 | int lg4ff_raw_event(struct hid_device *hdev, struct hid_report *report, |
327 | u8 *rd, int size, struct lg_drv_data *drv_data) | |
328 | { | |
b456634b | 329 | int offset; |
c832f86e SW |
330 | struct lg4ff_device_entry *entry = drv_data->device_props; |
331 | ||
332 | if (!entry) | |
333 | return 0; | |
334 | ||
335 | /* adjust HID report present combined pedals data */ | |
336 | if (entry->wdata.combine) { | |
337 | switch (entry->wdata.product_id) { | |
338 | case USB_DEVICE_ID_LOGITECH_WHEEL: | |
339 | rd[5] = rd[3]; | |
340 | rd[6] = 0x7F; | |
341 | return 1; | |
e41b3cda | 342 | case USB_DEVICE_ID_LOGITECH_WINGMAN_FG: |
560bea30 | 343 | case USB_DEVICE_ID_LOGITECH_WINGMAN_FFG: |
c832f86e SW |
344 | case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL: |
345 | case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2: | |
346 | rd[4] = rd[3]; | |
347 | rd[5] = 0x7F; | |
348 | return 1; | |
349 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
350 | rd[5] = rd[4]; | |
351 | rd[6] = 0x7F; | |
352 | return 1; | |
b456634b SW |
353 | case USB_DEVICE_ID_LOGITECH_G25_WHEEL: |
354 | case USB_DEVICE_ID_LOGITECH_G27_WHEEL: | |
355 | offset = 5; | |
356 | break; | |
357 | case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL: | |
358 | case USB_DEVICE_ID_LOGITECH_G29_WHEEL: | |
359 | offset = 6; | |
360 | break; | |
361 | case USB_DEVICE_ID_LOGITECH_WII_WHEEL: | |
362 | offset = 3; | |
363 | break; | |
c832f86e SW |
364 | default: |
365 | return 0; | |
366 | } | |
b456634b SW |
367 | |
368 | /* Compute a combined axis when wheel does not supply it */ | |
369 | rd[offset] = (0xFF + rd[offset] - rd[offset+1]) >> 1; | |
370 | rd[offset+1] = 0x7F; | |
371 | return 1; | |
c832f86e SW |
372 | } |
373 | ||
374 | return 0; | |
375 | } | |
376 | ||
5d9d60ad MM |
377 | static void lg4ff_init_wheel_data(struct lg4ff_wheel_data * const wdata, const struct lg4ff_wheel *wheel, |
378 | const struct lg4ff_multimode_wheel *mmode_wheel, | |
379 | const u16 real_product_id) | |
380 | { | |
381 | u32 alternate_modes = 0; | |
382 | const char *real_tag = NULL; | |
383 | const char *real_name = NULL; | |
384 | ||
385 | if (mmode_wheel) { | |
386 | alternate_modes = mmode_wheel->alternate_modes; | |
387 | real_tag = mmode_wheel->real_tag; | |
388 | real_name = mmode_wheel->real_name; | |
389 | } | |
390 | ||
391 | { | |
392 | struct lg4ff_wheel_data t_wdata = { .product_id = wheel->product_id, | |
393 | .real_product_id = real_product_id, | |
961af46f | 394 | .combine = 0, |
5d9d60ad MM |
395 | .min_range = wheel->min_range, |
396 | .max_range = wheel->max_range, | |
397 | .set_range = wheel->set_range, | |
398 | .alternate_modes = alternate_modes, | |
399 | .real_tag = real_tag, | |
400 | .real_name = real_name }; | |
401 | ||
402 | memcpy(wdata, &t_wdata, sizeof(t_wdata)); | |
403 | } | |
404 | } | |
405 | ||
d0afd848 | 406 | static int lg4ff_play(struct input_dev *dev, void *data, struct ff_effect *effect) |
32c88cbc SW |
407 | { |
408 | struct hid_device *hid = input_get_drvdata(dev); | |
c918fe78 MM |
409 | struct lg4ff_device_entry *entry; |
410 | struct lg_drv_data *drv_data; | |
411 | unsigned long flags; | |
c28abd8c | 412 | s32 *value; |
32c88cbc SW |
413 | int x; |
414 | ||
c918fe78 MM |
415 | drv_data = hid_get_drvdata(hid); |
416 | if (!drv_data) { | |
417 | hid_err(hid, "Private driver data not found!\n"); | |
418 | return -EINVAL; | |
419 | } | |
420 | ||
421 | entry = drv_data->device_props; | |
422 | if (!entry) { | |
423 | hid_err(hid, "Device properties not found!\n"); | |
424 | return -EINVAL; | |
425 | } | |
c28abd8c | 426 | value = entry->report->field[0]->value; |
c918fe78 | 427 | |
a80fe5d6 | 428 | #define CLAMP(x) do { if (x < 0) x = 0; else if (x > 0xff) x = 0xff; } while (0) |
32c88cbc SW |
429 | |
430 | switch (effect->type) { | |
431 | case FF_CONSTANT: | |
432 | x = effect->u.ramp.start_level + 0x80; /* 0x80 is no force */ | |
433 | CLAMP(x); | |
56930e7a | 434 | |
c918fe78 | 435 | spin_lock_irqsave(&entry->report_lock, flags); |
56930e7a SW |
436 | if (x == 0x80) { |
437 | /* De-activate force in slot-1*/ | |
438 | value[0] = 0x13; | |
439 | value[1] = 0x00; | |
440 | value[2] = 0x00; | |
441 | value[3] = 0x00; | |
442 | value[4] = 0x00; | |
443 | value[5] = 0x00; | |
444 | value[6] = 0x00; | |
445 | ||
c28abd8c | 446 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 447 | spin_unlock_irqrestore(&entry->report_lock, flags); |
56930e7a SW |
448 | return 0; |
449 | } | |
450 | ||
74479ba8 MM |
451 | value[0] = 0x11; /* Slot 1 */ |
452 | value[1] = 0x08; | |
453 | value[2] = x; | |
454 | value[3] = 0x80; | |
455 | value[4] = 0x00; | |
456 | value[5] = 0x00; | |
457 | value[6] = 0x00; | |
32c88cbc | 458 | |
c28abd8c | 459 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 460 | spin_unlock_irqrestore(&entry->report_lock, flags); |
32c88cbc SW |
461 | break; |
462 | } | |
463 | return 0; | |
464 | } | |
465 | ||
6e2de8e0 MM |
466 | /* Sends default autocentering command compatible with |
467 | * all wheels except Formula Force EX */ | |
d0afd848 | 468 | static void lg4ff_set_autocenter_default(struct input_dev *dev, u16 magnitude) |
32c88cbc SW |
469 | { |
470 | struct hid_device *hid = input_get_drvdata(dev); | |
6cb6d98a | 471 | s32 *value; |
2a552c30 | 472 | u32 expand_a, expand_b; |
1859762e SW |
473 | struct lg4ff_device_entry *entry; |
474 | struct lg_drv_data *drv_data; | |
c918fe78 | 475 | unsigned long flags; |
1859762e SW |
476 | |
477 | drv_data = hid_get_drvdata(hid); | |
478 | if (!drv_data) { | |
479 | hid_err(hid, "Private driver data not found!\n"); | |
480 | return; | |
481 | } | |
482 | ||
483 | entry = drv_data->device_props; | |
484 | if (!entry) { | |
485 | hid_err(hid, "Device properties not found!\n"); | |
486 | return; | |
487 | } | |
c28abd8c | 488 | value = entry->report->field[0]->value; |
f8c23156 | 489 | |
d2c02da5 | 490 | /* De-activate Auto-Center */ |
c918fe78 | 491 | spin_lock_irqsave(&entry->report_lock, flags); |
d2c02da5 SW |
492 | if (magnitude == 0) { |
493 | value[0] = 0xf5; | |
494 | value[1] = 0x00; | |
495 | value[2] = 0x00; | |
496 | value[3] = 0x00; | |
497 | value[4] = 0x00; | |
498 | value[5] = 0x00; | |
499 | value[6] = 0x00; | |
500 | ||
c28abd8c | 501 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 502 | spin_unlock_irqrestore(&entry->report_lock, flags); |
d2c02da5 SW |
503 | return; |
504 | } | |
505 | ||
f8c23156 SW |
506 | if (magnitude <= 0xaaaa) { |
507 | expand_a = 0x0c * magnitude; | |
508 | expand_b = 0x80 * magnitude; | |
509 | } else { | |
510 | expand_a = (0x0c * 0xaaaa) + 0x06 * (magnitude - 0xaaaa); | |
511 | expand_b = (0x80 * 0xaaaa) + 0xff * (magnitude - 0xaaaa); | |
512 | } | |
32c88cbc | 513 | |
1859762e | 514 | /* Adjust for non-MOMO wheels */ |
72529c65 | 515 | switch (entry->wdata.product_id) { |
1859762e SW |
516 | case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL: |
517 | case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2: | |
518 | break; | |
519 | default: | |
520 | expand_a = expand_a >> 1; | |
521 | break; | |
522 | } | |
523 | ||
74479ba8 MM |
524 | value[0] = 0xfe; |
525 | value[1] = 0x0d; | |
f8c23156 SW |
526 | value[2] = expand_a / 0xaaaa; |
527 | value[3] = expand_a / 0xaaaa; | |
528 | value[4] = expand_b / 0xaaaa; | |
74479ba8 MM |
529 | value[5] = 0x00; |
530 | value[6] = 0x00; | |
32c88cbc | 531 | |
c28abd8c | 532 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
d2c02da5 SW |
533 | |
534 | /* Activate Auto-Center */ | |
535 | value[0] = 0x14; | |
536 | value[1] = 0x00; | |
537 | value[2] = 0x00; | |
538 | value[3] = 0x00; | |
539 | value[4] = 0x00; | |
540 | value[5] = 0x00; | |
541 | value[6] = 0x00; | |
542 | ||
c28abd8c | 543 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 544 | spin_unlock_irqrestore(&entry->report_lock, flags); |
32c88cbc SW |
545 | } |
546 | ||
6e2de8e0 | 547 | /* Sends autocentering command compatible with Formula Force EX */ |
d0afd848 | 548 | static void lg4ff_set_autocenter_ffex(struct input_dev *dev, u16 magnitude) |
6e2de8e0 MM |
549 | { |
550 | struct hid_device *hid = input_get_drvdata(dev); | |
c918fe78 MM |
551 | struct lg4ff_device_entry *entry; |
552 | struct lg_drv_data *drv_data; | |
553 | unsigned long flags; | |
c28abd8c | 554 | s32 *value; |
6e2de8e0 | 555 | magnitude = magnitude * 90 / 65535; |
6e2de8e0 | 556 | |
c918fe78 MM |
557 | drv_data = hid_get_drvdata(hid); |
558 | if (!drv_data) { | |
559 | hid_err(hid, "Private driver data not found!\n"); | |
560 | return; | |
561 | } | |
562 | ||
563 | entry = drv_data->device_props; | |
564 | if (!entry) { | |
565 | hid_err(hid, "Device properties not found!\n"); | |
566 | return; | |
567 | } | |
c28abd8c | 568 | value = entry->report->field[0]->value; |
c918fe78 MM |
569 | |
570 | spin_lock_irqsave(&entry->report_lock, flags); | |
74479ba8 MM |
571 | value[0] = 0xfe; |
572 | value[1] = 0x03; | |
573 | value[2] = magnitude >> 14; | |
574 | value[3] = magnitude >> 14; | |
575 | value[4] = magnitude; | |
576 | value[5] = 0x00; | |
577 | value[6] = 0x00; | |
6e2de8e0 | 578 | |
c28abd8c | 579 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 580 | spin_unlock_irqrestore(&entry->report_lock, flags); |
6e2de8e0 MM |
581 | } |
582 | ||
30bb75d7 | 583 | /* Sends command to set range compatible with G25/G27/Driving Force GT */ |
d0afd848 | 584 | static void lg4ff_set_range_g25(struct hid_device *hid, u16 range) |
30bb75d7 | 585 | { |
c918fe78 MM |
586 | struct lg4ff_device_entry *entry; |
587 | struct lg_drv_data *drv_data; | |
588 | unsigned long flags; | |
c28abd8c | 589 | s32 *value; |
74479ba8 | 590 | |
c918fe78 MM |
591 | drv_data = hid_get_drvdata(hid); |
592 | if (!drv_data) { | |
593 | hid_err(hid, "Private driver data not found!\n"); | |
594 | return; | |
595 | } | |
596 | ||
597 | entry = drv_data->device_props; | |
598 | if (!entry) { | |
599 | hid_err(hid, "Device properties not found!\n"); | |
600 | return; | |
601 | } | |
c28abd8c | 602 | value = entry->report->field[0]->value; |
30bb75d7 MM |
603 | dbg_hid("G25/G27/DFGT: setting range to %u\n", range); |
604 | ||
c918fe78 | 605 | spin_lock_irqsave(&entry->report_lock, flags); |
74479ba8 MM |
606 | value[0] = 0xf8; |
607 | value[1] = 0x81; | |
608 | value[2] = range & 0x00ff; | |
609 | value[3] = (range & 0xff00) >> 8; | |
610 | value[4] = 0x00; | |
611 | value[5] = 0x00; | |
612 | value[6] = 0x00; | |
30bb75d7 | 613 | |
c28abd8c | 614 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 615 | spin_unlock_irqrestore(&entry->report_lock, flags); |
30bb75d7 MM |
616 | } |
617 | ||
618 | /* Sends commands to set range compatible with Driving Force Pro wheel */ | |
d0afd848 | 619 | static void lg4ff_set_range_dfp(struct hid_device *hid, u16 range) |
30bb75d7 | 620 | { |
c918fe78 MM |
621 | struct lg4ff_device_entry *entry; |
622 | struct lg_drv_data *drv_data; | |
623 | unsigned long flags; | |
c28abd8c MM |
624 | int start_left, start_right, full_range; |
625 | s32 *value; | |
74479ba8 | 626 | |
c918fe78 MM |
627 | drv_data = hid_get_drvdata(hid); |
628 | if (!drv_data) { | |
629 | hid_err(hid, "Private driver data not found!\n"); | |
630 | return; | |
631 | } | |
632 | ||
633 | entry = drv_data->device_props; | |
634 | if (!entry) { | |
635 | hid_err(hid, "Device properties not found!\n"); | |
636 | return; | |
637 | } | |
c28abd8c | 638 | value = entry->report->field[0]->value; |
30bb75d7 MM |
639 | dbg_hid("Driving Force Pro: setting range to %u\n", range); |
640 | ||
641 | /* Prepare "coarse" limit command */ | |
c918fe78 | 642 | spin_lock_irqsave(&entry->report_lock, flags); |
74479ba8 | 643 | value[0] = 0xf8; |
a80fe5d6 | 644 | value[1] = 0x00; /* Set later */ |
74479ba8 MM |
645 | value[2] = 0x00; |
646 | value[3] = 0x00; | |
647 | value[4] = 0x00; | |
648 | value[5] = 0x00; | |
649 | value[6] = 0x00; | |
30bb75d7 MM |
650 | |
651 | if (range > 200) { | |
c28abd8c | 652 | value[1] = 0x03; |
30bb75d7 MM |
653 | full_range = 900; |
654 | } else { | |
c28abd8c | 655 | value[1] = 0x02; |
30bb75d7 MM |
656 | full_range = 200; |
657 | } | |
c28abd8c | 658 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
30bb75d7 MM |
659 | |
660 | /* Prepare "fine" limit command */ | |
74479ba8 MM |
661 | value[0] = 0x81; |
662 | value[1] = 0x0b; | |
663 | value[2] = 0x00; | |
664 | value[3] = 0x00; | |
665 | value[4] = 0x00; | |
666 | value[5] = 0x00; | |
667 | value[6] = 0x00; | |
30bb75d7 MM |
668 | |
669 | if (range == 200 || range == 900) { /* Do not apply any fine limit */ | |
c28abd8c | 670 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 671 | spin_unlock_irqrestore(&entry->report_lock, flags); |
30bb75d7 MM |
672 | return; |
673 | } | |
674 | ||
675 | /* Construct fine limit command */ | |
676 | start_left = (((full_range - range + 1) * 2047) / full_range); | |
677 | start_right = 0xfff - start_left; | |
678 | ||
74479ba8 MM |
679 | value[2] = start_left >> 4; |
680 | value[3] = start_right >> 4; | |
681 | value[4] = 0xff; | |
682 | value[5] = (start_right & 0xe) << 4 | (start_left & 0xe); | |
683 | value[6] = 0xff; | |
30bb75d7 | 684 | |
c28abd8c | 685 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 686 | spin_unlock_irqrestore(&entry->report_lock, flags); |
30bb75d7 MM |
687 | } |
688 | ||
f31a2de3 MM |
689 | static const struct lg4ff_compat_mode_switch *lg4ff_get_mode_switch_command(const u16 real_product_id, const u16 target_product_id) |
690 | { | |
691 | switch (real_product_id) { | |
692 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
693 | switch (target_product_id) { | |
694 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
695 | return &lg4ff_mode_switch_ext01_dfp; | |
696 | /* DFP can only be switched to its native mode */ | |
697 | default: | |
698 | return NULL; | |
699 | } | |
700 | break; | |
701 | case USB_DEVICE_ID_LOGITECH_G25_WHEEL: | |
702 | switch (target_product_id) { | |
703 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
704 | return &lg4ff_mode_switch_ext01_dfp; | |
705 | case USB_DEVICE_ID_LOGITECH_G25_WHEEL: | |
706 | return &lg4ff_mode_switch_ext16_g25; | |
707 | /* G25 can only be switched to DFP mode or its native mode */ | |
708 | default: | |
709 | return NULL; | |
710 | } | |
711 | break; | |
712 | case USB_DEVICE_ID_LOGITECH_G27_WHEEL: | |
713 | switch (target_product_id) { | |
714 | case USB_DEVICE_ID_LOGITECH_WHEEL: | |
715 | return &lg4ff_mode_switch_ext09_dfex; | |
716 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
717 | return &lg4ff_mode_switch_ext09_dfp; | |
718 | case USB_DEVICE_ID_LOGITECH_G25_WHEEL: | |
719 | return &lg4ff_mode_switch_ext09_g25; | |
720 | case USB_DEVICE_ID_LOGITECH_G27_WHEEL: | |
721 | return &lg4ff_mode_switch_ext09_g27; | |
722 | /* G27 can only be switched to DF-EX, DFP, G25 or its native mode */ | |
723 | default: | |
724 | return NULL; | |
725 | } | |
726 | break; | |
29fae1c8 SW |
727 | case USB_DEVICE_ID_LOGITECH_G29_WHEEL: |
728 | switch (target_product_id) { | |
729 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
730 | return &lg4ff_mode_switch_ext09_dfp; | |
731 | case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL: | |
732 | return &lg4ff_mode_switch_ext09_dfgt; | |
733 | case USB_DEVICE_ID_LOGITECH_G25_WHEEL: | |
734 | return &lg4ff_mode_switch_ext09_g25; | |
735 | case USB_DEVICE_ID_LOGITECH_G27_WHEEL: | |
736 | return &lg4ff_mode_switch_ext09_g27; | |
737 | case USB_DEVICE_ID_LOGITECH_G29_WHEEL: | |
738 | return &lg4ff_mode_switch_ext09_g29; | |
739 | /* G29 can only be switched to DF-EX, DFP, DFGT, G25, G27 or its native mode */ | |
740 | default: | |
741 | return NULL; | |
742 | } | |
743 | break; | |
f31a2de3 MM |
744 | case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL: |
745 | switch (target_product_id) { | |
746 | case USB_DEVICE_ID_LOGITECH_WHEEL: | |
747 | return &lg4ff_mode_switch_ext09_dfex; | |
748 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
749 | return &lg4ff_mode_switch_ext09_dfp; | |
750 | case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL: | |
751 | return &lg4ff_mode_switch_ext09_dfgt; | |
752 | /* DFGT can only be switched to DF-EX, DFP or its native mode */ | |
753 | default: | |
754 | return NULL; | |
755 | } | |
756 | break; | |
757 | /* No other wheels have multiple modes */ | |
758 | default: | |
759 | return NULL; | |
760 | } | |
761 | } | |
762 | ||
e7c23449 | 763 | static int lg4ff_switch_compatibility_mode(struct hid_device *hid, const struct lg4ff_compat_mode_switch *s) |
96440c8a | 764 | { |
c918fe78 MM |
765 | struct lg4ff_device_entry *entry; |
766 | struct lg_drv_data *drv_data; | |
767 | unsigned long flags; | |
c28abd8c | 768 | s32 *value; |
e7c23449 | 769 | u8 i; |
96440c8a | 770 | |
c918fe78 MM |
771 | drv_data = hid_get_drvdata(hid); |
772 | if (!drv_data) { | |
773 | hid_err(hid, "Private driver data not found!\n"); | |
774 | return -EINVAL; | |
775 | } | |
776 | ||
777 | entry = drv_data->device_props; | |
778 | if (!entry) { | |
779 | hid_err(hid, "Device properties not found!\n"); | |
780 | return -EINVAL; | |
781 | } | |
c28abd8c | 782 | value = entry->report->field[0]->value; |
c918fe78 MM |
783 | |
784 | spin_lock_irqsave(&entry->report_lock, flags); | |
e7c23449 | 785 | for (i = 0; i < s->cmd_count; i++) { |
c1740d13 | 786 | u8 j; |
96440c8a | 787 | |
c1740d13 MM |
788 | for (j = 0; j < 7; j++) |
789 | value[j] = s->cmd[j + (7*i)]; | |
790 | ||
c28abd8c | 791 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
96440c8a | 792 | } |
c918fe78 | 793 | spin_unlock_irqrestore(&entry->report_lock, flags); |
c1740d13 | 794 | hid_hw_wait(hid); |
e7c23449 | 795 | return 0; |
96440c8a | 796 | } |
32c88cbc | 797 | |
b96d23ec MM |
798 | static ssize_t lg4ff_alternate_modes_show(struct device *dev, struct device_attribute *attr, char *buf) |
799 | { | |
800 | struct hid_device *hid = to_hid_device(dev); | |
801 | struct lg4ff_device_entry *entry; | |
802 | struct lg_drv_data *drv_data; | |
803 | ssize_t count = 0; | |
804 | int i; | |
805 | ||
806 | drv_data = hid_get_drvdata(hid); | |
807 | if (!drv_data) { | |
808 | hid_err(hid, "Private driver data not found!\n"); | |
809 | return 0; | |
810 | } | |
811 | ||
812 | entry = drv_data->device_props; | |
813 | if (!entry) { | |
814 | hid_err(hid, "Device properties not found!\n"); | |
815 | return 0; | |
816 | } | |
817 | ||
72529c65 | 818 | if (!entry->wdata.real_name) { |
b96d23ec MM |
819 | hid_err(hid, "NULL pointer to string\n"); |
820 | return 0; | |
821 | } | |
822 | ||
823 | for (i = 0; i < LG4FF_MODE_MAX_IDX; i++) { | |
72529c65 | 824 | if (entry->wdata.alternate_modes & BIT(i)) { |
b96d23ec MM |
825 | /* Print tag and full name */ |
826 | count += scnprintf(buf + count, PAGE_SIZE - count, "%s: %s", | |
827 | lg4ff_alternate_modes[i].tag, | |
72529c65 | 828 | !lg4ff_alternate_modes[i].product_id ? entry->wdata.real_name : lg4ff_alternate_modes[i].name); |
b96d23ec MM |
829 | if (count >= PAGE_SIZE - 1) |
830 | return count; | |
831 | ||
832 | /* Mark the currently active mode with an asterisk */ | |
72529c65 MM |
833 | if (lg4ff_alternate_modes[i].product_id == entry->wdata.product_id || |
834 | (lg4ff_alternate_modes[i].product_id == 0 && entry->wdata.product_id == entry->wdata.real_product_id)) | |
b96d23ec MM |
835 | count += scnprintf(buf + count, PAGE_SIZE - count, " *\n"); |
836 | else | |
837 | count += scnprintf(buf + count, PAGE_SIZE - count, "\n"); | |
838 | ||
839 | if (count >= PAGE_SIZE - 1) | |
840 | return count; | |
841 | } | |
842 | } | |
843 | ||
844 | return count; | |
845 | } | |
846 | ||
847 | static ssize_t lg4ff_alternate_modes_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) | |
848 | { | |
f31a2de3 MM |
849 | struct hid_device *hid = to_hid_device(dev); |
850 | struct lg4ff_device_entry *entry; | |
851 | struct lg_drv_data *drv_data; | |
852 | const struct lg4ff_compat_mode_switch *s; | |
853 | u16 target_product_id = 0; | |
854 | int i, ret; | |
855 | char *lbuf; | |
856 | ||
857 | drv_data = hid_get_drvdata(hid); | |
858 | if (!drv_data) { | |
859 | hid_err(hid, "Private driver data not found!\n"); | |
860 | return -EINVAL; | |
861 | } | |
862 | ||
863 | entry = drv_data->device_props; | |
864 | if (!entry) { | |
865 | hid_err(hid, "Device properties not found!\n"); | |
866 | return -EINVAL; | |
867 | } | |
868 | ||
869 | /* Allow \n at the end of the input parameter */ | |
870 | lbuf = kasprintf(GFP_KERNEL, "%s", buf); | |
871 | if (!lbuf) | |
872 | return -ENOMEM; | |
873 | ||
874 | i = strlen(lbuf); | |
875 | if (lbuf[i-1] == '\n') { | |
876 | if (i == 1) { | |
877 | kfree(lbuf); | |
878 | return -EINVAL; | |
879 | } | |
880 | lbuf[i-1] = '\0'; | |
881 | } | |
882 | ||
883 | for (i = 0; i < LG4FF_MODE_MAX_IDX; i++) { | |
884 | const u16 mode_product_id = lg4ff_alternate_modes[i].product_id; | |
885 | const char *tag = lg4ff_alternate_modes[i].tag; | |
886 | ||
72529c65 | 887 | if (entry->wdata.alternate_modes & BIT(i)) { |
f31a2de3 MM |
888 | if (!strcmp(tag, lbuf)) { |
889 | if (!mode_product_id) | |
72529c65 | 890 | target_product_id = entry->wdata.real_product_id; |
f31a2de3 MM |
891 | else |
892 | target_product_id = mode_product_id; | |
893 | break; | |
894 | } | |
895 | } | |
896 | } | |
897 | ||
898 | if (i == LG4FF_MODE_MAX_IDX) { | |
899 | hid_info(hid, "Requested mode \"%s\" is not supported by the device\n", lbuf); | |
900 | kfree(lbuf); | |
901 | return -EINVAL; | |
902 | } | |
903 | kfree(lbuf); /* Not needed anymore */ | |
904 | ||
72529c65 | 905 | if (target_product_id == entry->wdata.product_id) /* Nothing to do */ |
f31a2de3 MM |
906 | return count; |
907 | ||
908 | /* Automatic switching has to be disabled for the switch to DF-EX mode to work correctly */ | |
909 | if (target_product_id == USB_DEVICE_ID_LOGITECH_WHEEL && !lg4ff_no_autoswitch) { | |
910 | 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 | 911 | entry->wdata.real_name); |
f31a2de3 MM |
912 | return -EINVAL; |
913 | } | |
914 | ||
915 | /* Take care of hardware limitations */ | |
72529c65 MM |
916 | if ((entry->wdata.real_product_id == USB_DEVICE_ID_LOGITECH_DFP_WHEEL || entry->wdata.real_product_id == USB_DEVICE_ID_LOGITECH_G25_WHEEL) && |
917 | entry->wdata.product_id > target_product_id) { | |
918 | hid_info(hid, "\"%s\" cannot be switched back into \"%s\" mode\n", entry->wdata.real_name, lg4ff_alternate_modes[i].name); | |
f31a2de3 MM |
919 | return -EINVAL; |
920 | } | |
921 | ||
72529c65 | 922 | s = lg4ff_get_mode_switch_command(entry->wdata.real_product_id, target_product_id); |
f31a2de3 MM |
923 | if (!s) { |
924 | hid_err(hid, "Invalid target product ID %X\n", target_product_id); | |
925 | return -EINVAL; | |
926 | } | |
927 | ||
928 | ret = lg4ff_switch_compatibility_mode(hid, s); | |
929 | return (ret == 0 ? count : ret); | |
b96d23ec MM |
930 | } |
931 | static DEVICE_ATTR(alternate_modes, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH, lg4ff_alternate_modes_show, lg4ff_alternate_modes_store); | |
932 | ||
961af46f SW |
933 | static ssize_t lg4ff_combine_show(struct device *dev, struct device_attribute *attr, |
934 | char *buf) | |
935 | { | |
936 | struct hid_device *hid = to_hid_device(dev); | |
937 | struct lg4ff_device_entry *entry; | |
938 | struct lg_drv_data *drv_data; | |
939 | size_t count; | |
940 | ||
941 | drv_data = hid_get_drvdata(hid); | |
942 | if (!drv_data) { | |
943 | hid_err(hid, "Private driver data not found!\n"); | |
944 | return 0; | |
945 | } | |
946 | ||
947 | entry = drv_data->device_props; | |
948 | if (!entry) { | |
949 | hid_err(hid, "Device properties not found!\n"); | |
950 | return 0; | |
951 | } | |
952 | ||
953 | count = scnprintf(buf, PAGE_SIZE, "%u\n", entry->wdata.combine); | |
954 | return count; | |
955 | } | |
956 | ||
957 | static ssize_t lg4ff_combine_store(struct device *dev, struct device_attribute *attr, | |
958 | const char *buf, size_t count) | |
959 | { | |
960 | struct hid_device *hid = to_hid_device(dev); | |
961 | struct lg4ff_device_entry *entry; | |
962 | struct lg_drv_data *drv_data; | |
963 | u16 combine = simple_strtoul(buf, NULL, 10); | |
964 | ||
965 | drv_data = hid_get_drvdata(hid); | |
966 | if (!drv_data) { | |
967 | hid_err(hid, "Private driver data not found!\n"); | |
968 | return -EINVAL; | |
969 | } | |
970 | ||
971 | entry = drv_data->device_props; | |
972 | if (!entry) { | |
973 | hid_err(hid, "Device properties not found!\n"); | |
974 | return -EINVAL; | |
975 | } | |
976 | ||
977 | if (combine > 1) | |
978 | combine = 1; | |
979 | ||
980 | entry->wdata.combine = combine; | |
981 | return count; | |
982 | } | |
983 | static DEVICE_ATTR(combine_pedals, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH, lg4ff_combine_show, lg4ff_combine_store); | |
984 | ||
fbf85e2a MM |
985 | /* Export the currently set range of the wheel */ |
986 | static ssize_t lg4ff_range_show(struct device *dev, struct device_attribute *attr, | |
987 | char *buf) | |
30bb75d7 | 988 | { |
30bb75d7 | 989 | struct hid_device *hid = to_hid_device(dev); |
3b6b17b7 MM |
990 | struct lg4ff_device_entry *entry; |
991 | struct lg_drv_data *drv_data; | |
30bb75d7 MM |
992 | size_t count; |
993 | ||
3b6b17b7 MM |
994 | drv_data = hid_get_drvdata(hid); |
995 | if (!drv_data) { | |
996 | hid_err(hid, "Private driver data not found!\n"); | |
997 | return 0; | |
30bb75d7 | 998 | } |
3b6b17b7 MM |
999 | |
1000 | entry = drv_data->device_props; | |
1001 | if (!entry) { | |
1002 | hid_err(hid, "Device properties not found!\n"); | |
30bb75d7 MM |
1003 | return 0; |
1004 | } | |
1005 | ||
72529c65 | 1006 | count = scnprintf(buf, PAGE_SIZE, "%u\n", entry->wdata.range); |
30bb75d7 MM |
1007 | return count; |
1008 | } | |
1009 | ||
1010 | /* Set range to user specified value, call appropriate function | |
1011 | * according to the type of the wheel */ | |
fbf85e2a MM |
1012 | static ssize_t lg4ff_range_store(struct device *dev, struct device_attribute *attr, |
1013 | const char *buf, size_t count) | |
30bb75d7 | 1014 | { |
30bb75d7 | 1015 | struct hid_device *hid = to_hid_device(dev); |
3b6b17b7 MM |
1016 | struct lg4ff_device_entry *entry; |
1017 | struct lg_drv_data *drv_data; | |
2a552c30 | 1018 | u16 range = simple_strtoul(buf, NULL, 10); |
30bb75d7 | 1019 | |
3b6b17b7 MM |
1020 | drv_data = hid_get_drvdata(hid); |
1021 | if (!drv_data) { | |
1022 | hid_err(hid, "Private driver data not found!\n"); | |
29ff6657 | 1023 | return -EINVAL; |
30bb75d7 | 1024 | } |
3b6b17b7 MM |
1025 | |
1026 | entry = drv_data->device_props; | |
1027 | if (!entry) { | |
1028 | hid_err(hid, "Device properties not found!\n"); | |
29ff6657 | 1029 | return -EINVAL; |
30bb75d7 MM |
1030 | } |
1031 | ||
1032 | if (range == 0) | |
72529c65 | 1033 | range = entry->wdata.max_range; |
30bb75d7 MM |
1034 | |
1035 | /* Check if the wheel supports range setting | |
1036 | * and that the range is within limits for the wheel */ | |
72529c65 MM |
1037 | if (entry->wdata.set_range && range >= entry->wdata.min_range && range <= entry->wdata.max_range) { |
1038 | entry->wdata.set_range(hid, range); | |
1039 | entry->wdata.range = range; | |
30bb75d7 MM |
1040 | } |
1041 | ||
1042 | return count; | |
1043 | } | |
fbf85e2a | 1044 | static DEVICE_ATTR(range, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH, lg4ff_range_show, lg4ff_range_store); |
30bb75d7 | 1045 | |
b96d23ec MM |
1046 | static ssize_t lg4ff_real_id_show(struct device *dev, struct device_attribute *attr, char *buf) |
1047 | { | |
1048 | struct hid_device *hid = to_hid_device(dev); | |
1049 | struct lg4ff_device_entry *entry; | |
1050 | struct lg_drv_data *drv_data; | |
1051 | size_t count; | |
1052 | ||
1053 | drv_data = hid_get_drvdata(hid); | |
1054 | if (!drv_data) { | |
1055 | hid_err(hid, "Private driver data not found!\n"); | |
1056 | return 0; | |
1057 | } | |
1058 | ||
1059 | entry = drv_data->device_props; | |
1060 | if (!entry) { | |
1061 | hid_err(hid, "Device properties not found!\n"); | |
1062 | return 0; | |
1063 | } | |
1064 | ||
72529c65 | 1065 | if (!entry->wdata.real_tag || !entry->wdata.real_name) { |
b96d23ec MM |
1066 | hid_err(hid, "NULL pointer to string\n"); |
1067 | return 0; | |
1068 | } | |
1069 | ||
72529c65 | 1070 | count = scnprintf(buf, PAGE_SIZE, "%s: %s\n", entry->wdata.real_tag, entry->wdata.real_name); |
b96d23ec MM |
1071 | return count; |
1072 | } | |
1073 | ||
1074 | static ssize_t lg4ff_real_id_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) | |
1075 | { | |
1076 | /* Real ID is a read-only value */ | |
1077 | return -EPERM; | |
1078 | } | |
1079 | static DEVICE_ATTR(real_id, S_IRUGO, lg4ff_real_id_show, lg4ff_real_id_store); | |
1080 | ||
22bcefdc | 1081 | #ifdef CONFIG_LEDS_CLASS |
2a552c30 | 1082 | static void lg4ff_set_leds(struct hid_device *hid, u8 leds) |
22bcefdc | 1083 | { |
c918fe78 MM |
1084 | struct lg_drv_data *drv_data; |
1085 | struct lg4ff_device_entry *entry; | |
1086 | unsigned long flags; | |
c28abd8c | 1087 | s32 *value; |
74479ba8 | 1088 | |
c918fe78 MM |
1089 | drv_data = hid_get_drvdata(hid); |
1090 | if (!drv_data) { | |
1091 | hid_err(hid, "Private driver data not found!\n"); | |
1092 | return; | |
1093 | } | |
1094 | ||
1095 | entry = drv_data->device_props; | |
1096 | if (!entry) { | |
1097 | hid_err(hid, "Device properties not found!\n"); | |
1098 | return; | |
1099 | } | |
c28abd8c | 1100 | value = entry->report->field[0]->value; |
c918fe78 MM |
1101 | |
1102 | spin_lock_irqsave(&entry->report_lock, flags); | |
74479ba8 MM |
1103 | value[0] = 0xf8; |
1104 | value[1] = 0x12; | |
1105 | value[2] = leds; | |
1106 | value[3] = 0x00; | |
1107 | value[4] = 0x00; | |
1108 | value[5] = 0x00; | |
1109 | value[6] = 0x00; | |
c28abd8c | 1110 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 1111 | spin_unlock_irqrestore(&entry->report_lock, flags); |
22bcefdc SW |
1112 | } |
1113 | ||
1114 | static void lg4ff_led_set_brightness(struct led_classdev *led_cdev, | |
1115 | enum led_brightness value) | |
1116 | { | |
1117 | struct device *dev = led_cdev->dev->parent; | |
ee79a8f8 | 1118 | struct hid_device *hid = to_hid_device(dev); |
4629fd16 | 1119 | struct lg_drv_data *drv_data = hid_get_drvdata(hid); |
22bcefdc SW |
1120 | struct lg4ff_device_entry *entry; |
1121 | int i, state = 0; | |
1122 | ||
1123 | if (!drv_data) { | |
1124 | hid_err(hid, "Device data not found."); | |
1125 | return; | |
1126 | } | |
1127 | ||
371a1d9e | 1128 | entry = drv_data->device_props; |
22bcefdc SW |
1129 | |
1130 | if (!entry) { | |
1131 | hid_err(hid, "Device properties not found."); | |
1132 | return; | |
1133 | } | |
1134 | ||
1135 | for (i = 0; i < 5; i++) { | |
72529c65 | 1136 | if (led_cdev != entry->wdata.led[i]) |
22bcefdc | 1137 | continue; |
72529c65 | 1138 | state = (entry->wdata.led_state >> i) & 1; |
22bcefdc | 1139 | if (value == LED_OFF && state) { |
72529c65 MM |
1140 | entry->wdata.led_state &= ~(1 << i); |
1141 | lg4ff_set_leds(hid, entry->wdata.led_state); | |
22bcefdc | 1142 | } else if (value != LED_OFF && !state) { |
72529c65 MM |
1143 | entry->wdata.led_state |= 1 << i; |
1144 | lg4ff_set_leds(hid, entry->wdata.led_state); | |
22bcefdc SW |
1145 | } |
1146 | break; | |
1147 | } | |
1148 | } | |
1149 | ||
1150 | static enum led_brightness lg4ff_led_get_brightness(struct led_classdev *led_cdev) | |
1151 | { | |
1152 | struct device *dev = led_cdev->dev->parent; | |
ee79a8f8 | 1153 | struct hid_device *hid = to_hid_device(dev); |
4629fd16 | 1154 | struct lg_drv_data *drv_data = hid_get_drvdata(hid); |
22bcefdc SW |
1155 | struct lg4ff_device_entry *entry; |
1156 | int i, value = 0; | |
1157 | ||
1158 | if (!drv_data) { | |
1159 | hid_err(hid, "Device data not found."); | |
1160 | return LED_OFF; | |
1161 | } | |
1162 | ||
371a1d9e | 1163 | entry = drv_data->device_props; |
22bcefdc SW |
1164 | |
1165 | if (!entry) { | |
1166 | hid_err(hid, "Device properties not found."); | |
1167 | return LED_OFF; | |
1168 | } | |
1169 | ||
1170 | for (i = 0; i < 5; i++) | |
72529c65 MM |
1171 | if (led_cdev == entry->wdata.led[i]) { |
1172 | value = (entry->wdata.led_state >> i) & 1; | |
22bcefdc SW |
1173 | break; |
1174 | } | |
1175 | ||
1176 | return value ? LED_FULL : LED_OFF; | |
1177 | } | |
1178 | #endif | |
1179 | ||
e7c23449 MM |
1180 | static u16 lg4ff_identify_multimode_wheel(struct hid_device *hid, const u16 reported_product_id, const u16 bcdDevice) |
1181 | { | |
bbec1bd0 SW |
1182 | u32 current_mode; |
1183 | int i; | |
e7c23449 | 1184 | |
bbec1bd0 SW |
1185 | /* identify current mode from USB PID */ |
1186 | for (i = 1; i < ARRAY_SIZE(lg4ff_alternate_modes); i++) { | |
1187 | dbg_hid("Testing whether PID is %X\n", lg4ff_alternate_modes[i].product_id); | |
1188 | if (reported_product_id == lg4ff_alternate_modes[i].product_id) | |
1189 | break; | |
e7c23449 MM |
1190 | } |
1191 | ||
bbec1bd0 SW |
1192 | if (i == ARRAY_SIZE(lg4ff_alternate_modes)) |
1193 | return 0; | |
1194 | ||
1195 | current_mode = BIT(i); | |
1196 | ||
1197 | for (i = 0; i < ARRAY_SIZE(lg4ff_main_checklist); i++) { | |
1198 | const u16 mask = lg4ff_main_checklist[i]->mask; | |
1199 | const u16 result = lg4ff_main_checklist[i]->result; | |
1200 | const u16 real_product_id = lg4ff_main_checklist[i]->real_product_id; | |
e7c23449 | 1201 | |
bbec1bd0 SW |
1202 | if ((current_mode & lg4ff_main_checklist[i]->modes) && \ |
1203 | (bcdDevice & mask) == result) { | |
e7c23449 MM |
1204 | dbg_hid("Found wheel with real PID %X whose reported PID is %X\n", real_product_id, reported_product_id); |
1205 | return real_product_id; | |
1206 | } | |
1207 | } | |
1208 | ||
f31a2de3 MM |
1209 | /* No match found. This is either Driving Force or an unknown |
1210 | * wheel model, do not touch it */ | |
e7c23449 MM |
1211 | dbg_hid("Wheel with bcdDevice %X was not recognized as multimode wheel, leaving in its current mode\n", bcdDevice); |
1212 | return 0; | |
1213 | } | |
1214 | ||
1215 | static int lg4ff_handle_multimode_wheel(struct hid_device *hid, u16 *real_product_id, const u16 bcdDevice) | |
1216 | { | |
1217 | const u16 reported_product_id = hid->product; | |
1218 | int ret; | |
1219 | ||
1220 | *real_product_id = lg4ff_identify_multimode_wheel(hid, reported_product_id, bcdDevice); | |
1221 | /* Probed wheel is not a multimode wheel */ | |
1222 | if (!*real_product_id) { | |
1223 | *real_product_id = reported_product_id; | |
1224 | dbg_hid("Wheel is not a multimode wheel\n"); | |
1225 | return LG4FF_MMODE_NOT_MULTIMODE; | |
1226 | } | |
1227 | ||
1228 | /* Switch from "Driving Force" mode to native mode automatically. | |
1229 | * Otherwise keep the wheel in its current mode */ | |
1230 | if (reported_product_id == USB_DEVICE_ID_LOGITECH_WHEEL && | |
a54dc779 MM |
1231 | reported_product_id != *real_product_id && |
1232 | !lg4ff_no_autoswitch) { | |
f31a2de3 | 1233 | const struct lg4ff_compat_mode_switch *s = lg4ff_get_mode_switch_command(*real_product_id, *real_product_id); |
e7c23449 | 1234 | |
f31a2de3 | 1235 | if (!s) { |
e7c23449 | 1236 | hid_err(hid, "Invalid product id %X\n", *real_product_id); |
b96d23ec | 1237 | return LG4FF_MMODE_NOT_MULTIMODE; |
e7c23449 MM |
1238 | } |
1239 | ||
1240 | ret = lg4ff_switch_compatibility_mode(hid, s); | |
1241 | if (ret) { | |
1242 | /* Wheel could not have been switched to native mode, | |
1243 | * leave it in "Driving Force" mode and continue */ | |
1244 | hid_err(hid, "Unable to switch wheel mode, errno %d\n", ret); | |
b96d23ec | 1245 | return LG4FF_MMODE_IS_MULTIMODE; |
e7c23449 MM |
1246 | } |
1247 | return LG4FF_MMODE_SWITCHED; | |
1248 | } | |
1249 | ||
b96d23ec | 1250 | return LG4FF_MMODE_IS_MULTIMODE; |
e7c23449 MM |
1251 | } |
1252 | ||
1253 | ||
32c88cbc SW |
1254 | int lg4ff_init(struct hid_device *hid) |
1255 | { | |
d9d4b1e4 AS |
1256 | struct hid_input *hidinput; |
1257 | struct input_dev *dev; | |
c28abd8c MM |
1258 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; |
1259 | struct hid_report *report = list_entry(report_list->next, struct hid_report, list); | |
e7c23449 MM |
1260 | const struct usb_device_descriptor *udesc = &(hid_to_usb_dev(hid)->descriptor); |
1261 | const u16 bcdDevice = le16_to_cpu(udesc->bcdDevice); | |
5d9d60ad | 1262 | const struct lg4ff_multimode_wheel *mmode_wheel = NULL; |
30bb75d7 | 1263 | struct lg4ff_device_entry *entry; |
3b6b17b7 | 1264 | struct lg_drv_data *drv_data; |
b96d23ec MM |
1265 | int error, i, j; |
1266 | int mmode_ret, mmode_idx = -1; | |
e7c23449 | 1267 | u16 real_product_id; |
32c88cbc | 1268 | |
d9d4b1e4 AS |
1269 | if (list_empty(&hid->inputs)) { |
1270 | hid_err(hid, "no inputs found\n"); | |
1271 | return -ENODEV; | |
1272 | } | |
1273 | hidinput = list_entry(hid->inputs.next, struct hid_input, list); | |
1274 | dev = hidinput->input; | |
1275 | ||
32c88cbc | 1276 | /* Check that the report looks ok */ |
0fb6bd06 | 1277 | if (!hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 7)) |
32c88cbc | 1278 | return -1; |
30bb75d7 | 1279 | |
72529c65 MM |
1280 | drv_data = hid_get_drvdata(hid); |
1281 | if (!drv_data) { | |
1282 | hid_err(hid, "Cannot add device, private driver data not allocated\n"); | |
1283 | return -1; | |
1284 | } | |
1285 | entry = kzalloc(sizeof(*entry), GFP_KERNEL); | |
1286 | if (!entry) | |
1287 | return -ENOMEM; | |
c918fe78 | 1288 | spin_lock_init(&entry->report_lock); |
c28abd8c | 1289 | entry->report = report; |
72529c65 MM |
1290 | drv_data->device_props = entry; |
1291 | ||
e7c23449 MM |
1292 | /* Check if a multimode wheel has been connected and |
1293 | * handle it appropriately */ | |
b96d23ec | 1294 | mmode_ret = lg4ff_handle_multimode_wheel(hid, &real_product_id, bcdDevice); |
e7c23449 MM |
1295 | |
1296 | /* Wheel has been told to switch to native mode. There is no point in going on | |
1297 | * with the initialization as the wheel will do a USB reset when it switches mode | |
1298 | */ | |
b96d23ec | 1299 | if (mmode_ret == LG4FF_MMODE_SWITCHED) |
e7c23449 | 1300 | return 0; |
72529c65 MM |
1301 | else if (mmode_ret < 0) { |
1302 | hid_err(hid, "Unable to switch device mode during initialization, errno %d\n", mmode_ret); | |
1303 | error = mmode_ret; | |
1304 | goto err_init; | |
1305 | } | |
e7c23449 | 1306 | |
7362cd22 MM |
1307 | /* Check what wheel has been connected */ |
1308 | for (i = 0; i < ARRAY_SIZE(lg4ff_devices); i++) { | |
1309 | if (hid->product == lg4ff_devices[i].product_id) { | |
1310 | dbg_hid("Found compatible device, product ID %04X\n", lg4ff_devices[i].product_id); | |
1311 | break; | |
1312 | } | |
1313 | } | |
1314 | ||
1315 | if (i == ARRAY_SIZE(lg4ff_devices)) { | |
9c2a6bd1 MM |
1316 | hid_err(hid, "This device is flagged to be handled by the lg4ff module but this module does not know how to handle it. " |
1317 | "Please report this as a bug to LKML, Simon Wood <simon@mungewell.org> or " | |
1318 | "Michal Maly <madcatxster@devoid-pointer.net>\n"); | |
72529c65 MM |
1319 | error = -1; |
1320 | goto err_init; | |
7362cd22 | 1321 | } |
32c88cbc | 1322 | |
b96d23ec MM |
1323 | if (mmode_ret == LG4FF_MMODE_IS_MULTIMODE) { |
1324 | for (mmode_idx = 0; mmode_idx < ARRAY_SIZE(lg4ff_multimode_wheels); mmode_idx++) { | |
1325 | if (real_product_id == lg4ff_multimode_wheels[mmode_idx].product_id) | |
1326 | break; | |
1327 | } | |
1328 | ||
1329 | if (mmode_idx == ARRAY_SIZE(lg4ff_multimode_wheels)) { | |
1330 | hid_err(hid, "Device product ID %X is not listed as a multimode wheel", real_product_id); | |
72529c65 MM |
1331 | error = -1; |
1332 | goto err_init; | |
b96d23ec MM |
1333 | } |
1334 | } | |
1335 | ||
7362cd22 MM |
1336 | /* Set supported force feedback capabilities */ |
1337 | for (j = 0; lg4ff_devices[i].ff_effects[j] >= 0; j++) | |
1338 | set_bit(lg4ff_devices[i].ff_effects[j], dev->ffbit); | |
32c88cbc | 1339 | |
d0afd848 | 1340 | error = input_ff_create_memless(dev, NULL, lg4ff_play); |
32c88cbc SW |
1341 | |
1342 | if (error) | |
72529c65 | 1343 | goto err_init; |
30bb75d7 | 1344 | |
5d9d60ad | 1345 | /* Initialize device properties */ |
b96d23ec MM |
1346 | if (mmode_ret == LG4FF_MMODE_IS_MULTIMODE) { |
1347 | BUG_ON(mmode_idx == -1); | |
5d9d60ad | 1348 | mmode_wheel = &lg4ff_multimode_wheels[mmode_idx]; |
b96d23ec | 1349 | } |
5d9d60ad | 1350 | lg4ff_init_wheel_data(&entry->wdata, &lg4ff_devices[i], mmode_wheel, real_product_id); |
30bb75d7 | 1351 | |
114a55cf SW |
1352 | /* Check if autocentering is available and |
1353 | * set the centering force to zero by default */ | |
1354 | if (test_bit(FF_AUTOCENTER, dev->ffbit)) { | |
e7c23449 MM |
1355 | /* Formula Force EX expects different autocentering command */ |
1356 | if ((bcdDevice >> 8) == LG4FF_FFEX_REV_MAJ && | |
1357 | (bcdDevice & 0xff) == LG4FF_FFEX_REV_MIN) | |
d0afd848 | 1358 | dev->ff->set_autocenter = lg4ff_set_autocenter_ffex; |
114a55cf | 1359 | else |
d0afd848 | 1360 | dev->ff->set_autocenter = lg4ff_set_autocenter_default; |
114a55cf SW |
1361 | |
1362 | dev->ff->set_autocenter(dev, 0); | |
1363 | } | |
1364 | ||
30bb75d7 | 1365 | /* Create sysfs interface */ |
961af46f SW |
1366 | error = device_create_file(&hid->dev, &dev_attr_combine_pedals); |
1367 | if (error) | |
1368 | hid_warn(hid, "Unable to create sysfs interface for \"combine\", errno %d\n", error); | |
30bb75d7 MM |
1369 | error = device_create_file(&hid->dev, &dev_attr_range); |
1370 | if (error) | |
d61a70ec | 1371 | hid_warn(hid, "Unable to create sysfs interface for \"range\", errno %d\n", error); |
b96d23ec MM |
1372 | if (mmode_ret == LG4FF_MMODE_IS_MULTIMODE) { |
1373 | error = device_create_file(&hid->dev, &dev_attr_real_id); | |
1374 | if (error) | |
d61a70ec | 1375 | hid_warn(hid, "Unable to create sysfs interface for \"real_id\", errno %d\n", error); |
b96d23ec MM |
1376 | error = device_create_file(&hid->dev, &dev_attr_alternate_modes); |
1377 | if (error) | |
d61a70ec | 1378 | hid_warn(hid, "Unable to create sysfs interface for \"alternate_modes\", errno %d\n", error); |
b96d23ec | 1379 | } |
30bb75d7 MM |
1380 | dbg_hid("sysfs interface created\n"); |
1381 | ||
1382 | /* Set the maximum range to start with */ | |
72529c65 MM |
1383 | entry->wdata.range = entry->wdata.max_range; |
1384 | if (entry->wdata.set_range) | |
1385 | entry->wdata.set_range(hid, entry->wdata.range); | |
30bb75d7 | 1386 | |
22bcefdc | 1387 | #ifdef CONFIG_LEDS_CLASS |
29fae1c8 | 1388 | /* register led subsystem - G27/G29 only */ |
72529c65 | 1389 | entry->wdata.led_state = 0; |
22bcefdc | 1390 | for (j = 0; j < 5; j++) |
72529c65 | 1391 | entry->wdata.led[j] = NULL; |
22bcefdc | 1392 | |
29fae1c8 SW |
1393 | if (lg4ff_devices[i].product_id == USB_DEVICE_ID_LOGITECH_G27_WHEEL || |
1394 | lg4ff_devices[i].product_id == USB_DEVICE_ID_LOGITECH_G29_WHEEL) { | |
22bcefdc SW |
1395 | struct led_classdev *led; |
1396 | size_t name_sz; | |
1397 | char *name; | |
1398 | ||
1399 | lg4ff_set_leds(hid, 0); | |
1400 | ||
1401 | name_sz = strlen(dev_name(&hid->dev)) + 8; | |
1402 | ||
1403 | for (j = 0; j < 5; j++) { | |
1404 | led = kzalloc(sizeof(struct led_classdev)+name_sz, GFP_KERNEL); | |
1405 | if (!led) { | |
1406 | hid_err(hid, "can't allocate memory for LED %d\n", j); | |
72529c65 | 1407 | goto err_leds; |
22bcefdc SW |
1408 | } |
1409 | ||
1410 | name = (void *)(&led[1]); | |
1411 | snprintf(name, name_sz, "%s::RPM%d", dev_name(&hid->dev), j+1); | |
1412 | led->name = name; | |
1413 | led->brightness = 0; | |
1414 | led->max_brightness = 1; | |
1415 | led->brightness_get = lg4ff_led_get_brightness; | |
1416 | led->brightness_set = lg4ff_led_set_brightness; | |
1417 | ||
72529c65 | 1418 | entry->wdata.led[j] = led; |
22bcefdc SW |
1419 | error = led_classdev_register(&hid->dev, led); |
1420 | ||
1421 | if (error) { | |
1422 | hid_err(hid, "failed to register LED %d. Aborting.\n", j); | |
72529c65 | 1423 | err_leds: |
22bcefdc SW |
1424 | /* Deregister LEDs (if any) */ |
1425 | for (j = 0; j < 5; j++) { | |
72529c65 MM |
1426 | led = entry->wdata.led[j]; |
1427 | entry->wdata.led[j] = NULL; | |
22bcefdc SW |
1428 | if (!led) |
1429 | continue; | |
1430 | led_classdev_unregister(led); | |
1431 | kfree(led); | |
1432 | } | |
1433 | goto out; /* Let the driver continue without LEDs */ | |
1434 | } | |
1435 | } | |
1436 | } | |
22bcefdc | 1437 | out: |
c6e6dc87 | 1438 | #endif |
64013800 | 1439 | hid_info(hid, "Force feedback support for Logitech Gaming Wheels\n"); |
32c88cbc | 1440 | return 0; |
72529c65 MM |
1441 | |
1442 | err_init: | |
1443 | drv_data->device_props = NULL; | |
1444 | kfree(entry); | |
1445 | return error; | |
32c88cbc SW |
1446 | } |
1447 | ||
30bb75d7 MM |
1448 | int lg4ff_deinit(struct hid_device *hid) |
1449 | { | |
30bb75d7 | 1450 | struct lg4ff_device_entry *entry; |
3b6b17b7 MM |
1451 | struct lg_drv_data *drv_data; |
1452 | ||
3b6b17b7 MM |
1453 | drv_data = hid_get_drvdata(hid); |
1454 | if (!drv_data) { | |
1455 | hid_err(hid, "Error while deinitializing device, no private driver data.\n"); | |
1456 | return -1; | |
30bb75d7 | 1457 | } |
3b6b17b7 | 1458 | entry = drv_data->device_props; |
e7c23449 MM |
1459 | if (!entry) |
1460 | goto out; /* Nothing more to do */ | |
1461 | ||
b96d23ec | 1462 | /* Multimode devices will have at least the "MODE_NATIVE" bit set */ |
72529c65 | 1463 | if (entry->wdata.alternate_modes) { |
b96d23ec MM |
1464 | device_remove_file(&hid->dev, &dev_attr_real_id); |
1465 | device_remove_file(&hid->dev, &dev_attr_alternate_modes); | |
1466 | } | |
1467 | ||
961af46f | 1468 | device_remove_file(&hid->dev, &dev_attr_combine_pedals); |
72529c65 | 1469 | device_remove_file(&hid->dev, &dev_attr_range); |
22bcefdc SW |
1470 | #ifdef CONFIG_LEDS_CLASS |
1471 | { | |
1472 | int j; | |
1473 | struct led_classdev *led; | |
1474 | ||
1475 | /* Deregister LEDs (if any) */ | |
1476 | for (j = 0; j < 5; j++) { | |
1477 | ||
72529c65 MM |
1478 | led = entry->wdata.led[j]; |
1479 | entry->wdata.led[j] = NULL; | |
22bcefdc SW |
1480 | if (!led) |
1481 | continue; | |
1482 | led_classdev_unregister(led); | |
1483 | kfree(led); | |
1484 | } | |
1485 | } | |
1486 | #endif | |
b211a638 | 1487 | drv_data->device_props = NULL; |
22bcefdc | 1488 | |
3b6b17b7 | 1489 | kfree(entry); |
e7c23449 | 1490 | out: |
30bb75d7 MM |
1491 | dbg_hid("Device successfully unregistered\n"); |
1492 | return 0; | |
1493 | } |