Commit | Line | Data |
---|---|---|
32c88cbc | 1 | /* |
64013800 | 2 | * Force feedback support for Logitech Gaming Wheels |
32c88cbc | 3 | * |
64013800 SW |
4 | * Including G27, G25, DFP, DFGT, FFEX, Momo, Momo2 & |
5 | * Speed Force Wireless (WiiWheel) | |
32c88cbc SW |
6 | * |
7 | * Copyright (c) 2010 Simon Wood <simon@mungewell.org> | |
8 | */ | |
9 | ||
10 | /* | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; either version 2 of the License, or | |
14 | * (at your option) any later version. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, | |
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License | |
22 | * along with this program; if not, write to the Free Software | |
23 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
24 | */ | |
25 | ||
26 | ||
27 | #include <linux/input.h> | |
28 | #include <linux/usb.h> | |
29 | #include <linux/hid.h> | |
30 | ||
31 | #include "usbhid/usbhid.h" | |
32 | #include "hid-lg.h" | |
a54dc779 | 33 | #include "hid-lg4ff.h" |
7362cd22 | 34 | #include "hid-ids.h" |
32c88cbc | 35 | |
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 | ||
e41b3cda JW |
106 | static const signed short no_wheel_effects[] = { |
107 | -1 | |
108 | }; | |
109 | ||
7362cd22 | 110 | struct lg4ff_wheel { |
2a552c30 | 111 | const u32 product_id; |
7362cd22 | 112 | const signed short *ff_effects; |
2a552c30 MM |
113 | const u16 min_range; |
114 | const u16 max_range; | |
30bb75d7 | 115 | void (*set_range)(struct hid_device *hid, u16 range); |
7362cd22 MM |
116 | }; |
117 | ||
e7c23449 | 118 | struct lg4ff_compat_mode_switch { |
2a552c30 MM |
119 | const u8 cmd_count; /* Number of commands to send */ |
120 | const u8 cmd[]; | |
e7c23449 MM |
121 | }; |
122 | ||
123 | struct lg4ff_wheel_ident_info { | |
bbec1bd0 | 124 | const u32 modes; |
e7c23449 MM |
125 | const u16 mask; |
126 | const u16 result; | |
127 | const u16 real_product_id; | |
128 | }; | |
129 | ||
b96d23ec MM |
130 | struct lg4ff_multimode_wheel { |
131 | const u16 product_id; | |
132 | const u32 alternate_modes; | |
133 | const char *real_tag; | |
134 | const char *real_name; | |
135 | }; | |
136 | ||
137 | struct lg4ff_alternate_mode { | |
138 | const u16 product_id; | |
139 | const char *tag; | |
140 | const char *name; | |
141 | }; | |
142 | ||
7362cd22 | 143 | static const struct lg4ff_wheel lg4ff_devices[] = { |
e41b3cda | 144 | {USB_DEVICE_ID_LOGITECH_WINGMAN_FG, no_wheel_effects, 40, 180, NULL}, |
560bea30 | 145 | {USB_DEVICE_ID_LOGITECH_WINGMAN_FFG, lg4ff_wheel_effects, 40, 180, NULL}, |
30bb75d7 MM |
146 | {USB_DEVICE_ID_LOGITECH_WHEEL, lg4ff_wheel_effects, 40, 270, NULL}, |
147 | {USB_DEVICE_ID_LOGITECH_MOMO_WHEEL, lg4ff_wheel_effects, 40, 270, NULL}, | |
d0afd848 MM |
148 | {USB_DEVICE_ID_LOGITECH_DFP_WHEEL, lg4ff_wheel_effects, 40, 900, lg4ff_set_range_dfp}, |
149 | {USB_DEVICE_ID_LOGITECH_G25_WHEEL, lg4ff_wheel_effects, 40, 900, lg4ff_set_range_g25}, | |
150 | {USB_DEVICE_ID_LOGITECH_DFGT_WHEEL, lg4ff_wheel_effects, 40, 900, lg4ff_set_range_g25}, | |
151 | {USB_DEVICE_ID_LOGITECH_G27_WHEEL, lg4ff_wheel_effects, 40, 900, lg4ff_set_range_g25}, | |
29fae1c8 | 152 | {USB_DEVICE_ID_LOGITECH_G29_WHEEL, lg4ff_wheel_effects, 40, 900, lg4ff_set_range_g25}, |
30bb75d7 MM |
153 | {USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2, lg4ff_wheel_effects, 40, 270, NULL}, |
154 | {USB_DEVICE_ID_LOGITECH_WII_WHEEL, lg4ff_wheel_effects, 40, 270, NULL} | |
7362cd22 MM |
155 | }; |
156 | ||
b96d23ec MM |
157 | static const struct lg4ff_multimode_wheel lg4ff_multimode_wheels[] = { |
158 | {USB_DEVICE_ID_LOGITECH_DFP_WHEEL, | |
159 | LG4FF_MODE_NATIVE | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, | |
160 | LG4FF_DFP_TAG, LG4FF_DFP_NAME}, | |
161 | {USB_DEVICE_ID_LOGITECH_G25_WHEEL, | |
162 | LG4FF_MODE_NATIVE | LG4FF_MODE_G25 | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, | |
163 | LG4FF_G25_TAG, LG4FF_G25_NAME}, | |
164 | {USB_DEVICE_ID_LOGITECH_DFGT_WHEEL, | |
165 | LG4FF_MODE_NATIVE | LG4FF_MODE_DFGT | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, | |
166 | LG4FF_DFGT_TAG, LG4FF_DFGT_NAME}, | |
167 | {USB_DEVICE_ID_LOGITECH_G27_WHEEL, | |
168 | LG4FF_MODE_NATIVE | LG4FF_MODE_G27 | LG4FF_MODE_G25 | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, | |
169 | LG4FF_G27_TAG, LG4FF_G27_NAME}, | |
29fae1c8 SW |
170 | {USB_DEVICE_ID_LOGITECH_G29_WHEEL, |
171 | LG4FF_MODE_NATIVE | LG4FF_MODE_G29 | LG4FF_MODE_G27 | LG4FF_MODE_G25 | LG4FF_MODE_DFGT | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, | |
172 | LG4FF_G29_TAG, LG4FF_G29_NAME}, | |
b96d23ec MM |
173 | }; |
174 | ||
175 | static const struct lg4ff_alternate_mode lg4ff_alternate_modes[] = { | |
176 | [LG4FF_MODE_NATIVE_IDX] = {0, "native", ""}, | |
177 | [LG4FF_MODE_DFEX_IDX] = {USB_DEVICE_ID_LOGITECH_WHEEL, LG4FF_DFEX_TAG, LG4FF_DFEX_NAME}, | |
178 | [LG4FF_MODE_DFP_IDX] = {USB_DEVICE_ID_LOGITECH_DFP_WHEEL, LG4FF_DFP_TAG, LG4FF_DFP_NAME}, | |
179 | [LG4FF_MODE_G25_IDX] = {USB_DEVICE_ID_LOGITECH_G25_WHEEL, LG4FF_G25_TAG, LG4FF_G25_NAME}, | |
180 | [LG4FF_MODE_DFGT_IDX] = {USB_DEVICE_ID_LOGITECH_DFGT_WHEEL, LG4FF_DFGT_TAG, LG4FF_DFGT_NAME}, | |
29fae1c8 SW |
181 | [LG4FF_MODE_G27_IDX] = {USB_DEVICE_ID_LOGITECH_G27_WHEEL, LG4FF_G27_TAG, LG4FF_G27_NAME}, |
182 | [LG4FF_MODE_G29_IDX] = {USB_DEVICE_ID_LOGITECH_G29_WHEEL, LG4FF_G29_TAG, LG4FF_G29_NAME}, | |
b96d23ec MM |
183 | }; |
184 | ||
e7c23449 MM |
185 | /* Multimode wheel identificators */ |
186 | static const struct lg4ff_wheel_ident_info lg4ff_dfp_ident_info = { | |
bbec1bd0 | 187 | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, |
e7c23449 MM |
188 | 0xf000, |
189 | 0x1000, | |
190 | USB_DEVICE_ID_LOGITECH_DFP_WHEEL | |
191 | }; | |
192 | ||
193 | static const struct lg4ff_wheel_ident_info lg4ff_g25_ident_info = { | |
bbec1bd0 | 194 | LG4FF_MODE_G25 | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, |
e7c23449 MM |
195 | 0xff00, |
196 | 0x1200, | |
197 | USB_DEVICE_ID_LOGITECH_G25_WHEEL | |
198 | }; | |
199 | ||
200 | static const struct lg4ff_wheel_ident_info lg4ff_g27_ident_info = { | |
bbec1bd0 | 201 | LG4FF_MODE_G27 | LG4FF_MODE_G25 | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, |
e7c23449 MM |
202 | 0xfff0, |
203 | 0x1230, | |
204 | USB_DEVICE_ID_LOGITECH_G27_WHEEL | |
96440c8a MM |
205 | }; |
206 | ||
e7c23449 | 207 | static const struct lg4ff_wheel_ident_info lg4ff_dfgt_ident_info = { |
bbec1bd0 | 208 | LG4FF_MODE_DFGT | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, |
e7c23449 MM |
209 | 0xff00, |
210 | 0x1300, | |
211 | USB_DEVICE_ID_LOGITECH_DFGT_WHEEL | |
96440c8a MM |
212 | }; |
213 | ||
29fae1c8 SW |
214 | static const struct lg4ff_wheel_ident_info lg4ff_g29_ident_info = { |
215 | LG4FF_MODE_G29 | LG4FF_MODE_G27 | LG4FF_MODE_G25 | LG4FF_MODE_DFGT | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, | |
216 | 0xfff8, | |
217 | 0x1350, | |
218 | USB_DEVICE_ID_LOGITECH_G29_WHEEL | |
219 | }; | |
220 | ||
221 | static const struct lg4ff_wheel_ident_info lg4ff_g29_ident_info2 = { | |
222 | LG4FF_MODE_G29 | LG4FF_MODE_G27 | LG4FF_MODE_G25 | LG4FF_MODE_DFGT | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, | |
223 | 0xff00, | |
224 | 0x8900, | |
225 | USB_DEVICE_ID_LOGITECH_G29_WHEEL | |
226 | }; | |
227 | ||
e7c23449 | 228 | /* Multimode wheel identification checklists */ |
bbec1bd0 | 229 | static const struct lg4ff_wheel_ident_info *lg4ff_main_checklist[] = { |
29fae1c8 SW |
230 | &lg4ff_g29_ident_info, |
231 | &lg4ff_g29_ident_info2, | |
bbec1bd0 SW |
232 | &lg4ff_dfgt_ident_info, |
233 | &lg4ff_g27_ident_info, | |
234 | &lg4ff_g25_ident_info, | |
235 | &lg4ff_dfp_ident_info | |
e7c23449 MM |
236 | }; |
237 | ||
238 | /* Compatibility mode switching commands */ | |
f31a2de3 MM |
239 | /* EXT_CMD9 - Understood by G27 and DFGT */ |
240 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_dfex = { | |
241 | 2, | |
242 | {0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* Revert mode upon USB reset */ | |
243 | 0xf8, 0x09, 0x00, 0x01, 0x00, 0x00, 0x00} /* Switch mode to DF-EX with detach */ | |
96440c8a MM |
244 | }; |
245 | ||
f31a2de3 | 246 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_dfp = { |
96440c8a | 247 | 2, |
f31a2de3 MM |
248 | {0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* Revert mode upon USB reset */ |
249 | 0xf8, 0x09, 0x01, 0x01, 0x00, 0x00, 0x00} /* Switch mode to DFP with detach */ | |
96440c8a MM |
250 | }; |
251 | ||
f31a2de3 MM |
252 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_g25 = { |
253 | 2, | |
254 | {0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* Revert mode upon USB reset */ | |
255 | 0xf8, 0x09, 0x02, 0x01, 0x00, 0x00, 0x00} /* Switch mode to G25 with detach */ | |
96440c8a MM |
256 | }; |
257 | ||
f31a2de3 | 258 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_dfgt = { |
96440c8a | 259 | 2, |
f31a2de3 MM |
260 | {0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* Revert mode upon USB reset */ |
261 | 0xf8, 0x09, 0x03, 0x01, 0x00, 0x00, 0x00} /* Switch mode to DFGT with detach */ | |
262 | }; | |
263 | ||
264 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_g27 = { | |
265 | 2, | |
266 | {0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* Revert mode upon USB reset */ | |
267 | 0xf8, 0x09, 0x04, 0x01, 0x00, 0x00, 0x00} /* Switch mode to G27 with detach */ | |
268 | }; | |
269 | ||
29fae1c8 SW |
270 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext09_g29 = { |
271 | 2, | |
272 | {0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* Revert mode upon USB reset */ | |
273 | 0xf8, 0x09, 0x05, 0x01, 0x01, 0x00, 0x00} /* Switch mode to G29 with detach */ | |
274 | }; | |
275 | ||
f31a2de3 MM |
276 | /* EXT_CMD1 - Understood by DFP, G25, G27 and DFGT */ |
277 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext01_dfp = { | |
278 | 1, | |
279 | {0xf8, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00} | |
280 | }; | |
281 | ||
282 | /* EXT_CMD16 - Understood by G25 and G27 */ | |
283 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_ext16_g25 = { | |
284 | 1, | |
285 | {0xf8, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00} | |
96440c8a MM |
286 | }; |
287 | ||
2b24a960 | 288 | /* Recalculates X axis value accordingly to currently selected range */ |
2a552c30 | 289 | static s32 lg4ff_adjust_dfp_x_axis(s32 value, u16 range) |
2b24a960 | 290 | { |
2a552c30 MM |
291 | u16 max_range; |
292 | s32 new_value; | |
2b24a960 MM |
293 | |
294 | if (range == 900) | |
295 | return value; | |
296 | else if (range == 200) | |
297 | return value; | |
298 | else if (range < 200) | |
299 | max_range = 200; | |
300 | else | |
301 | max_range = 900; | |
302 | ||
303 | new_value = 8192 + mult_frac(value - 8192, max_range, range); | |
304 | if (new_value < 0) | |
305 | return 0; | |
306 | else if (new_value > 16383) | |
307 | return 16383; | |
308 | else | |
309 | return new_value; | |
310 | } | |
311 | ||
312 | int lg4ff_adjust_input_event(struct hid_device *hid, struct hid_field *field, | |
2a552c30 | 313 | struct hid_usage *usage, s32 value, struct lg_drv_data *drv_data) |
2b24a960 MM |
314 | { |
315 | struct lg4ff_device_entry *entry = drv_data->device_props; | |
2a552c30 | 316 | s32 new_value = 0; |
2b24a960 MM |
317 | |
318 | if (!entry) { | |
319 | hid_err(hid, "Device properties not found"); | |
320 | return 0; | |
321 | } | |
322 | ||
72529c65 | 323 | switch (entry->wdata.product_id) { |
2b24a960 MM |
324 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: |
325 | switch (usage->code) { | |
326 | case ABS_X: | |
72529c65 | 327 | new_value = lg4ff_adjust_dfp_x_axis(value, entry->wdata.range); |
2b24a960 MM |
328 | input_event(field->hidinput->input, usage->type, usage->code, new_value); |
329 | return 1; | |
330 | default: | |
331 | return 0; | |
332 | } | |
333 | default: | |
334 | return 0; | |
335 | } | |
336 | } | |
337 | ||
c832f86e SW |
338 | int lg4ff_raw_event(struct hid_device *hdev, struct hid_report *report, |
339 | u8 *rd, int size, struct lg_drv_data *drv_data) | |
340 | { | |
b456634b | 341 | int offset; |
c832f86e SW |
342 | struct lg4ff_device_entry *entry = drv_data->device_props; |
343 | ||
344 | if (!entry) | |
345 | return 0; | |
346 | ||
347 | /* adjust HID report present combined pedals data */ | |
348 | if (entry->wdata.combine) { | |
349 | switch (entry->wdata.product_id) { | |
350 | case USB_DEVICE_ID_LOGITECH_WHEEL: | |
351 | rd[5] = rd[3]; | |
352 | rd[6] = 0x7F; | |
353 | return 1; | |
e41b3cda | 354 | case USB_DEVICE_ID_LOGITECH_WINGMAN_FG: |
560bea30 | 355 | case USB_DEVICE_ID_LOGITECH_WINGMAN_FFG: |
c832f86e SW |
356 | case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL: |
357 | case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2: | |
358 | rd[4] = rd[3]; | |
359 | rd[5] = 0x7F; | |
360 | return 1; | |
361 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
362 | rd[5] = rd[4]; | |
363 | rd[6] = 0x7F; | |
364 | return 1; | |
b456634b SW |
365 | case USB_DEVICE_ID_LOGITECH_G25_WHEEL: |
366 | case USB_DEVICE_ID_LOGITECH_G27_WHEEL: | |
367 | offset = 5; | |
368 | break; | |
369 | case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL: | |
370 | case USB_DEVICE_ID_LOGITECH_G29_WHEEL: | |
371 | offset = 6; | |
372 | break; | |
373 | case USB_DEVICE_ID_LOGITECH_WII_WHEEL: | |
374 | offset = 3; | |
375 | break; | |
c832f86e SW |
376 | default: |
377 | return 0; | |
378 | } | |
b456634b SW |
379 | |
380 | /* Compute a combined axis when wheel does not supply it */ | |
381 | rd[offset] = (0xFF + rd[offset] - rd[offset+1]) >> 1; | |
382 | rd[offset+1] = 0x7F; | |
383 | return 1; | |
c832f86e SW |
384 | } |
385 | ||
386 | return 0; | |
387 | } | |
388 | ||
5d9d60ad MM |
389 | static void lg4ff_init_wheel_data(struct lg4ff_wheel_data * const wdata, const struct lg4ff_wheel *wheel, |
390 | const struct lg4ff_multimode_wheel *mmode_wheel, | |
391 | const u16 real_product_id) | |
392 | { | |
393 | u32 alternate_modes = 0; | |
394 | const char *real_tag = NULL; | |
395 | const char *real_name = NULL; | |
396 | ||
397 | if (mmode_wheel) { | |
398 | alternate_modes = mmode_wheel->alternate_modes; | |
399 | real_tag = mmode_wheel->real_tag; | |
400 | real_name = mmode_wheel->real_name; | |
401 | } | |
402 | ||
403 | { | |
404 | struct lg4ff_wheel_data t_wdata = { .product_id = wheel->product_id, | |
405 | .real_product_id = real_product_id, | |
961af46f | 406 | .combine = 0, |
5d9d60ad MM |
407 | .min_range = wheel->min_range, |
408 | .max_range = wheel->max_range, | |
409 | .set_range = wheel->set_range, | |
410 | .alternate_modes = alternate_modes, | |
411 | .real_tag = real_tag, | |
412 | .real_name = real_name }; | |
413 | ||
414 | memcpy(wdata, &t_wdata, sizeof(t_wdata)); | |
415 | } | |
416 | } | |
417 | ||
d0afd848 | 418 | static int lg4ff_play(struct input_dev *dev, void *data, struct ff_effect *effect) |
32c88cbc SW |
419 | { |
420 | struct hid_device *hid = input_get_drvdata(dev); | |
c918fe78 MM |
421 | struct lg4ff_device_entry *entry; |
422 | struct lg_drv_data *drv_data; | |
423 | unsigned long flags; | |
c28abd8c | 424 | s32 *value; |
32c88cbc SW |
425 | int x; |
426 | ||
c918fe78 MM |
427 | drv_data = hid_get_drvdata(hid); |
428 | if (!drv_data) { | |
429 | hid_err(hid, "Private driver data not found!\n"); | |
430 | return -EINVAL; | |
431 | } | |
432 | ||
433 | entry = drv_data->device_props; | |
434 | if (!entry) { | |
435 | hid_err(hid, "Device properties not found!\n"); | |
436 | return -EINVAL; | |
437 | } | |
c28abd8c | 438 | value = entry->report->field[0]->value; |
c918fe78 | 439 | |
a80fe5d6 | 440 | #define CLAMP(x) do { if (x < 0) x = 0; else if (x > 0xff) x = 0xff; } while (0) |
32c88cbc SW |
441 | |
442 | switch (effect->type) { | |
443 | case FF_CONSTANT: | |
444 | x = effect->u.ramp.start_level + 0x80; /* 0x80 is no force */ | |
445 | CLAMP(x); | |
56930e7a | 446 | |
c918fe78 | 447 | spin_lock_irqsave(&entry->report_lock, flags); |
56930e7a SW |
448 | if (x == 0x80) { |
449 | /* De-activate force in slot-1*/ | |
450 | value[0] = 0x13; | |
451 | value[1] = 0x00; | |
452 | value[2] = 0x00; | |
453 | value[3] = 0x00; | |
454 | value[4] = 0x00; | |
455 | value[5] = 0x00; | |
456 | value[6] = 0x00; | |
457 | ||
c28abd8c | 458 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 459 | spin_unlock_irqrestore(&entry->report_lock, flags); |
56930e7a SW |
460 | return 0; |
461 | } | |
462 | ||
74479ba8 MM |
463 | value[0] = 0x11; /* Slot 1 */ |
464 | value[1] = 0x08; | |
465 | value[2] = x; | |
466 | value[3] = 0x80; | |
467 | value[4] = 0x00; | |
468 | value[5] = 0x00; | |
469 | value[6] = 0x00; | |
32c88cbc | 470 | |
c28abd8c | 471 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 472 | spin_unlock_irqrestore(&entry->report_lock, flags); |
32c88cbc SW |
473 | break; |
474 | } | |
475 | return 0; | |
476 | } | |
477 | ||
6e2de8e0 MM |
478 | /* Sends default autocentering command compatible with |
479 | * all wheels except Formula Force EX */ | |
d0afd848 | 480 | static void lg4ff_set_autocenter_default(struct input_dev *dev, u16 magnitude) |
32c88cbc SW |
481 | { |
482 | struct hid_device *hid = input_get_drvdata(dev); | |
6cb6d98a | 483 | s32 *value; |
2a552c30 | 484 | u32 expand_a, expand_b; |
1859762e SW |
485 | struct lg4ff_device_entry *entry; |
486 | struct lg_drv_data *drv_data; | |
c918fe78 | 487 | unsigned long flags; |
1859762e SW |
488 | |
489 | drv_data = hid_get_drvdata(hid); | |
490 | if (!drv_data) { | |
491 | hid_err(hid, "Private driver data not found!\n"); | |
492 | return; | |
493 | } | |
494 | ||
495 | entry = drv_data->device_props; | |
496 | if (!entry) { | |
497 | hid_err(hid, "Device properties not found!\n"); | |
498 | return; | |
499 | } | |
c28abd8c | 500 | value = entry->report->field[0]->value; |
f8c23156 | 501 | |
d2c02da5 | 502 | /* De-activate Auto-Center */ |
c918fe78 | 503 | spin_lock_irqsave(&entry->report_lock, flags); |
d2c02da5 SW |
504 | if (magnitude == 0) { |
505 | value[0] = 0xf5; | |
506 | value[1] = 0x00; | |
507 | value[2] = 0x00; | |
508 | value[3] = 0x00; | |
509 | value[4] = 0x00; | |
510 | value[5] = 0x00; | |
511 | value[6] = 0x00; | |
512 | ||
c28abd8c | 513 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 514 | spin_unlock_irqrestore(&entry->report_lock, flags); |
d2c02da5 SW |
515 | return; |
516 | } | |
517 | ||
f8c23156 SW |
518 | if (magnitude <= 0xaaaa) { |
519 | expand_a = 0x0c * magnitude; | |
520 | expand_b = 0x80 * magnitude; | |
521 | } else { | |
522 | expand_a = (0x0c * 0xaaaa) + 0x06 * (magnitude - 0xaaaa); | |
523 | expand_b = (0x80 * 0xaaaa) + 0xff * (magnitude - 0xaaaa); | |
524 | } | |
32c88cbc | 525 | |
1859762e | 526 | /* Adjust for non-MOMO wheels */ |
72529c65 | 527 | switch (entry->wdata.product_id) { |
1859762e SW |
528 | case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL: |
529 | case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2: | |
530 | break; | |
531 | default: | |
532 | expand_a = expand_a >> 1; | |
533 | break; | |
534 | } | |
535 | ||
74479ba8 MM |
536 | value[0] = 0xfe; |
537 | value[1] = 0x0d; | |
f8c23156 SW |
538 | value[2] = expand_a / 0xaaaa; |
539 | value[3] = expand_a / 0xaaaa; | |
540 | value[4] = expand_b / 0xaaaa; | |
74479ba8 MM |
541 | value[5] = 0x00; |
542 | value[6] = 0x00; | |
32c88cbc | 543 | |
c28abd8c | 544 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
d2c02da5 SW |
545 | |
546 | /* Activate Auto-Center */ | |
547 | value[0] = 0x14; | |
548 | value[1] = 0x00; | |
549 | value[2] = 0x00; | |
550 | value[3] = 0x00; | |
551 | value[4] = 0x00; | |
552 | value[5] = 0x00; | |
553 | value[6] = 0x00; | |
554 | ||
c28abd8c | 555 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 556 | spin_unlock_irqrestore(&entry->report_lock, flags); |
32c88cbc SW |
557 | } |
558 | ||
6e2de8e0 | 559 | /* Sends autocentering command compatible with Formula Force EX */ |
d0afd848 | 560 | static void lg4ff_set_autocenter_ffex(struct input_dev *dev, u16 magnitude) |
6e2de8e0 MM |
561 | { |
562 | struct hid_device *hid = input_get_drvdata(dev); | |
c918fe78 MM |
563 | struct lg4ff_device_entry *entry; |
564 | struct lg_drv_data *drv_data; | |
565 | unsigned long flags; | |
c28abd8c | 566 | s32 *value; |
6e2de8e0 | 567 | magnitude = magnitude * 90 / 65535; |
6e2de8e0 | 568 | |
c918fe78 MM |
569 | drv_data = hid_get_drvdata(hid); |
570 | if (!drv_data) { | |
571 | hid_err(hid, "Private driver data not found!\n"); | |
572 | return; | |
573 | } | |
574 | ||
575 | entry = drv_data->device_props; | |
576 | if (!entry) { | |
577 | hid_err(hid, "Device properties not found!\n"); | |
578 | return; | |
579 | } | |
c28abd8c | 580 | value = entry->report->field[0]->value; |
c918fe78 MM |
581 | |
582 | spin_lock_irqsave(&entry->report_lock, flags); | |
74479ba8 MM |
583 | value[0] = 0xfe; |
584 | value[1] = 0x03; | |
585 | value[2] = magnitude >> 14; | |
586 | value[3] = magnitude >> 14; | |
587 | value[4] = magnitude; | |
588 | value[5] = 0x00; | |
589 | value[6] = 0x00; | |
6e2de8e0 | 590 | |
c28abd8c | 591 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 592 | spin_unlock_irqrestore(&entry->report_lock, flags); |
6e2de8e0 MM |
593 | } |
594 | ||
30bb75d7 | 595 | /* Sends command to set range compatible with G25/G27/Driving Force GT */ |
d0afd848 | 596 | static void lg4ff_set_range_g25(struct hid_device *hid, u16 range) |
30bb75d7 | 597 | { |
c918fe78 MM |
598 | struct lg4ff_device_entry *entry; |
599 | struct lg_drv_data *drv_data; | |
600 | unsigned long flags; | |
c28abd8c | 601 | s32 *value; |
74479ba8 | 602 | |
c918fe78 MM |
603 | drv_data = hid_get_drvdata(hid); |
604 | if (!drv_data) { | |
605 | hid_err(hid, "Private driver data not found!\n"); | |
606 | return; | |
607 | } | |
608 | ||
609 | entry = drv_data->device_props; | |
610 | if (!entry) { | |
611 | hid_err(hid, "Device properties not found!\n"); | |
612 | return; | |
613 | } | |
c28abd8c | 614 | value = entry->report->field[0]->value; |
30bb75d7 MM |
615 | dbg_hid("G25/G27/DFGT: setting range to %u\n", range); |
616 | ||
c918fe78 | 617 | spin_lock_irqsave(&entry->report_lock, flags); |
74479ba8 MM |
618 | value[0] = 0xf8; |
619 | value[1] = 0x81; | |
620 | value[2] = range & 0x00ff; | |
621 | value[3] = (range & 0xff00) >> 8; | |
622 | value[4] = 0x00; | |
623 | value[5] = 0x00; | |
624 | value[6] = 0x00; | |
30bb75d7 | 625 | |
c28abd8c | 626 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 627 | spin_unlock_irqrestore(&entry->report_lock, flags); |
30bb75d7 MM |
628 | } |
629 | ||
630 | /* Sends commands to set range compatible with Driving Force Pro wheel */ | |
d0afd848 | 631 | static void lg4ff_set_range_dfp(struct hid_device *hid, u16 range) |
30bb75d7 | 632 | { |
c918fe78 MM |
633 | struct lg4ff_device_entry *entry; |
634 | struct lg_drv_data *drv_data; | |
635 | unsigned long flags; | |
c28abd8c MM |
636 | int start_left, start_right, full_range; |
637 | s32 *value; | |
74479ba8 | 638 | |
c918fe78 MM |
639 | drv_data = hid_get_drvdata(hid); |
640 | if (!drv_data) { | |
641 | hid_err(hid, "Private driver data not found!\n"); | |
642 | return; | |
643 | } | |
644 | ||
645 | entry = drv_data->device_props; | |
646 | if (!entry) { | |
647 | hid_err(hid, "Device properties not found!\n"); | |
648 | return; | |
649 | } | |
c28abd8c | 650 | value = entry->report->field[0]->value; |
30bb75d7 MM |
651 | dbg_hid("Driving Force Pro: setting range to %u\n", range); |
652 | ||
653 | /* Prepare "coarse" limit command */ | |
c918fe78 | 654 | spin_lock_irqsave(&entry->report_lock, flags); |
74479ba8 | 655 | value[0] = 0xf8; |
a80fe5d6 | 656 | value[1] = 0x00; /* Set later */ |
74479ba8 MM |
657 | value[2] = 0x00; |
658 | value[3] = 0x00; | |
659 | value[4] = 0x00; | |
660 | value[5] = 0x00; | |
661 | value[6] = 0x00; | |
30bb75d7 MM |
662 | |
663 | if (range > 200) { | |
c28abd8c | 664 | value[1] = 0x03; |
30bb75d7 MM |
665 | full_range = 900; |
666 | } else { | |
c28abd8c | 667 | value[1] = 0x02; |
30bb75d7 MM |
668 | full_range = 200; |
669 | } | |
c28abd8c | 670 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
30bb75d7 MM |
671 | |
672 | /* Prepare "fine" limit command */ | |
74479ba8 MM |
673 | value[0] = 0x81; |
674 | value[1] = 0x0b; | |
675 | value[2] = 0x00; | |
676 | value[3] = 0x00; | |
677 | value[4] = 0x00; | |
678 | value[5] = 0x00; | |
679 | value[6] = 0x00; | |
30bb75d7 MM |
680 | |
681 | if (range == 200 || range == 900) { /* Do not apply any fine limit */ | |
c28abd8c | 682 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 683 | spin_unlock_irqrestore(&entry->report_lock, flags); |
30bb75d7 MM |
684 | return; |
685 | } | |
686 | ||
687 | /* Construct fine limit command */ | |
688 | start_left = (((full_range - range + 1) * 2047) / full_range); | |
689 | start_right = 0xfff - start_left; | |
690 | ||
74479ba8 MM |
691 | value[2] = start_left >> 4; |
692 | value[3] = start_right >> 4; | |
693 | value[4] = 0xff; | |
694 | value[5] = (start_right & 0xe) << 4 | (start_left & 0xe); | |
695 | value[6] = 0xff; | |
30bb75d7 | 696 | |
c28abd8c | 697 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 698 | spin_unlock_irqrestore(&entry->report_lock, flags); |
30bb75d7 MM |
699 | } |
700 | ||
f31a2de3 MM |
701 | static const struct lg4ff_compat_mode_switch *lg4ff_get_mode_switch_command(const u16 real_product_id, const u16 target_product_id) |
702 | { | |
703 | switch (real_product_id) { | |
704 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
705 | switch (target_product_id) { | |
706 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
707 | return &lg4ff_mode_switch_ext01_dfp; | |
708 | /* DFP can only be switched to its native mode */ | |
709 | default: | |
710 | return NULL; | |
711 | } | |
712 | break; | |
713 | case USB_DEVICE_ID_LOGITECH_G25_WHEEL: | |
714 | switch (target_product_id) { | |
715 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
716 | return &lg4ff_mode_switch_ext01_dfp; | |
717 | case USB_DEVICE_ID_LOGITECH_G25_WHEEL: | |
718 | return &lg4ff_mode_switch_ext16_g25; | |
719 | /* G25 can only be switched to DFP mode or its native mode */ | |
720 | default: | |
721 | return NULL; | |
722 | } | |
723 | break; | |
724 | case USB_DEVICE_ID_LOGITECH_G27_WHEEL: | |
725 | switch (target_product_id) { | |
726 | case USB_DEVICE_ID_LOGITECH_WHEEL: | |
727 | return &lg4ff_mode_switch_ext09_dfex; | |
728 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
729 | return &lg4ff_mode_switch_ext09_dfp; | |
730 | case USB_DEVICE_ID_LOGITECH_G25_WHEEL: | |
731 | return &lg4ff_mode_switch_ext09_g25; | |
732 | case USB_DEVICE_ID_LOGITECH_G27_WHEEL: | |
733 | return &lg4ff_mode_switch_ext09_g27; | |
734 | /* G27 can only be switched to DF-EX, DFP, G25 or its native mode */ | |
735 | default: | |
736 | return NULL; | |
737 | } | |
738 | break; | |
29fae1c8 SW |
739 | case USB_DEVICE_ID_LOGITECH_G29_WHEEL: |
740 | switch (target_product_id) { | |
741 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
742 | return &lg4ff_mode_switch_ext09_dfp; | |
743 | case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL: | |
744 | return &lg4ff_mode_switch_ext09_dfgt; | |
745 | case USB_DEVICE_ID_LOGITECH_G25_WHEEL: | |
746 | return &lg4ff_mode_switch_ext09_g25; | |
747 | case USB_DEVICE_ID_LOGITECH_G27_WHEEL: | |
748 | return &lg4ff_mode_switch_ext09_g27; | |
749 | case USB_DEVICE_ID_LOGITECH_G29_WHEEL: | |
750 | return &lg4ff_mode_switch_ext09_g29; | |
751 | /* G29 can only be switched to DF-EX, DFP, DFGT, G25, G27 or its native mode */ | |
752 | default: | |
753 | return NULL; | |
754 | } | |
755 | break; | |
f31a2de3 MM |
756 | case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL: |
757 | switch (target_product_id) { | |
758 | case USB_DEVICE_ID_LOGITECH_WHEEL: | |
759 | return &lg4ff_mode_switch_ext09_dfex; | |
760 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
761 | return &lg4ff_mode_switch_ext09_dfp; | |
762 | case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL: | |
763 | return &lg4ff_mode_switch_ext09_dfgt; | |
764 | /* DFGT can only be switched to DF-EX, DFP or its native mode */ | |
765 | default: | |
766 | return NULL; | |
767 | } | |
768 | break; | |
769 | /* No other wheels have multiple modes */ | |
770 | default: | |
771 | return NULL; | |
772 | } | |
773 | } | |
774 | ||
e7c23449 | 775 | static int lg4ff_switch_compatibility_mode(struct hid_device *hid, const struct lg4ff_compat_mode_switch *s) |
96440c8a | 776 | { |
c918fe78 MM |
777 | struct lg4ff_device_entry *entry; |
778 | struct lg_drv_data *drv_data; | |
779 | unsigned long flags; | |
c28abd8c | 780 | s32 *value; |
e7c23449 | 781 | u8 i; |
96440c8a | 782 | |
c918fe78 MM |
783 | drv_data = hid_get_drvdata(hid); |
784 | if (!drv_data) { | |
785 | hid_err(hid, "Private driver data not found!\n"); | |
786 | return -EINVAL; | |
787 | } | |
788 | ||
789 | entry = drv_data->device_props; | |
790 | if (!entry) { | |
791 | hid_err(hid, "Device properties not found!\n"); | |
792 | return -EINVAL; | |
793 | } | |
c28abd8c | 794 | value = entry->report->field[0]->value; |
c918fe78 MM |
795 | |
796 | spin_lock_irqsave(&entry->report_lock, flags); | |
e7c23449 | 797 | for (i = 0; i < s->cmd_count; i++) { |
c1740d13 | 798 | u8 j; |
96440c8a | 799 | |
c1740d13 MM |
800 | for (j = 0; j < 7; j++) |
801 | value[j] = s->cmd[j + (7*i)]; | |
802 | ||
c28abd8c | 803 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
96440c8a | 804 | } |
c918fe78 | 805 | spin_unlock_irqrestore(&entry->report_lock, flags); |
c1740d13 | 806 | hid_hw_wait(hid); |
e7c23449 | 807 | return 0; |
96440c8a | 808 | } |
32c88cbc | 809 | |
b96d23ec MM |
810 | static ssize_t lg4ff_alternate_modes_show(struct device *dev, struct device_attribute *attr, char *buf) |
811 | { | |
812 | struct hid_device *hid = to_hid_device(dev); | |
813 | struct lg4ff_device_entry *entry; | |
814 | struct lg_drv_data *drv_data; | |
815 | ssize_t count = 0; | |
816 | int i; | |
817 | ||
818 | drv_data = hid_get_drvdata(hid); | |
819 | if (!drv_data) { | |
820 | hid_err(hid, "Private driver data not found!\n"); | |
821 | return 0; | |
822 | } | |
823 | ||
824 | entry = drv_data->device_props; | |
825 | if (!entry) { | |
826 | hid_err(hid, "Device properties not found!\n"); | |
827 | return 0; | |
828 | } | |
829 | ||
72529c65 | 830 | if (!entry->wdata.real_name) { |
b96d23ec MM |
831 | hid_err(hid, "NULL pointer to string\n"); |
832 | return 0; | |
833 | } | |
834 | ||
835 | for (i = 0; i < LG4FF_MODE_MAX_IDX; i++) { | |
72529c65 | 836 | if (entry->wdata.alternate_modes & BIT(i)) { |
b96d23ec MM |
837 | /* Print tag and full name */ |
838 | count += scnprintf(buf + count, PAGE_SIZE - count, "%s: %s", | |
839 | lg4ff_alternate_modes[i].tag, | |
72529c65 | 840 | !lg4ff_alternate_modes[i].product_id ? entry->wdata.real_name : lg4ff_alternate_modes[i].name); |
b96d23ec MM |
841 | if (count >= PAGE_SIZE - 1) |
842 | return count; | |
843 | ||
844 | /* Mark the currently active mode with an asterisk */ | |
72529c65 MM |
845 | if (lg4ff_alternate_modes[i].product_id == entry->wdata.product_id || |
846 | (lg4ff_alternate_modes[i].product_id == 0 && entry->wdata.product_id == entry->wdata.real_product_id)) | |
b96d23ec MM |
847 | count += scnprintf(buf + count, PAGE_SIZE - count, " *\n"); |
848 | else | |
849 | count += scnprintf(buf + count, PAGE_SIZE - count, "\n"); | |
850 | ||
851 | if (count >= PAGE_SIZE - 1) | |
852 | return count; | |
853 | } | |
854 | } | |
855 | ||
856 | return count; | |
857 | } | |
858 | ||
859 | static ssize_t lg4ff_alternate_modes_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) | |
860 | { | |
f31a2de3 MM |
861 | struct hid_device *hid = to_hid_device(dev); |
862 | struct lg4ff_device_entry *entry; | |
863 | struct lg_drv_data *drv_data; | |
864 | const struct lg4ff_compat_mode_switch *s; | |
865 | u16 target_product_id = 0; | |
866 | int i, ret; | |
867 | char *lbuf; | |
868 | ||
869 | drv_data = hid_get_drvdata(hid); | |
870 | if (!drv_data) { | |
871 | hid_err(hid, "Private driver data not found!\n"); | |
872 | return -EINVAL; | |
873 | } | |
874 | ||
875 | entry = drv_data->device_props; | |
876 | if (!entry) { | |
877 | hid_err(hid, "Device properties not found!\n"); | |
878 | return -EINVAL; | |
879 | } | |
880 | ||
881 | /* Allow \n at the end of the input parameter */ | |
882 | lbuf = kasprintf(GFP_KERNEL, "%s", buf); | |
883 | if (!lbuf) | |
884 | return -ENOMEM; | |
885 | ||
886 | i = strlen(lbuf); | |
887 | if (lbuf[i-1] == '\n') { | |
888 | if (i == 1) { | |
889 | kfree(lbuf); | |
890 | return -EINVAL; | |
891 | } | |
892 | lbuf[i-1] = '\0'; | |
893 | } | |
894 | ||
895 | for (i = 0; i < LG4FF_MODE_MAX_IDX; i++) { | |
896 | const u16 mode_product_id = lg4ff_alternate_modes[i].product_id; | |
897 | const char *tag = lg4ff_alternate_modes[i].tag; | |
898 | ||
72529c65 | 899 | if (entry->wdata.alternate_modes & BIT(i)) { |
f31a2de3 MM |
900 | if (!strcmp(tag, lbuf)) { |
901 | if (!mode_product_id) | |
72529c65 | 902 | target_product_id = entry->wdata.real_product_id; |
f31a2de3 MM |
903 | else |
904 | target_product_id = mode_product_id; | |
905 | break; | |
906 | } | |
907 | } | |
908 | } | |
909 | ||
910 | if (i == LG4FF_MODE_MAX_IDX) { | |
911 | hid_info(hid, "Requested mode \"%s\" is not supported by the device\n", lbuf); | |
912 | kfree(lbuf); | |
913 | return -EINVAL; | |
914 | } | |
915 | kfree(lbuf); /* Not needed anymore */ | |
916 | ||
72529c65 | 917 | if (target_product_id == entry->wdata.product_id) /* Nothing to do */ |
f31a2de3 MM |
918 | return count; |
919 | ||
920 | /* Automatic switching has to be disabled for the switch to DF-EX mode to work correctly */ | |
921 | if (target_product_id == USB_DEVICE_ID_LOGITECH_WHEEL && !lg4ff_no_autoswitch) { | |
922 | 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 | 923 | entry->wdata.real_name); |
f31a2de3 MM |
924 | return -EINVAL; |
925 | } | |
926 | ||
927 | /* Take care of hardware limitations */ | |
72529c65 MM |
928 | if ((entry->wdata.real_product_id == USB_DEVICE_ID_LOGITECH_DFP_WHEEL || entry->wdata.real_product_id == USB_DEVICE_ID_LOGITECH_G25_WHEEL) && |
929 | entry->wdata.product_id > target_product_id) { | |
930 | hid_info(hid, "\"%s\" cannot be switched back into \"%s\" mode\n", entry->wdata.real_name, lg4ff_alternate_modes[i].name); | |
f31a2de3 MM |
931 | return -EINVAL; |
932 | } | |
933 | ||
72529c65 | 934 | s = lg4ff_get_mode_switch_command(entry->wdata.real_product_id, target_product_id); |
f31a2de3 MM |
935 | if (!s) { |
936 | hid_err(hid, "Invalid target product ID %X\n", target_product_id); | |
937 | return -EINVAL; | |
938 | } | |
939 | ||
940 | ret = lg4ff_switch_compatibility_mode(hid, s); | |
941 | return (ret == 0 ? count : ret); | |
b96d23ec MM |
942 | } |
943 | static DEVICE_ATTR(alternate_modes, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH, lg4ff_alternate_modes_show, lg4ff_alternate_modes_store); | |
944 | ||
961af46f SW |
945 | static ssize_t lg4ff_combine_show(struct device *dev, struct device_attribute *attr, |
946 | char *buf) | |
947 | { | |
948 | struct hid_device *hid = to_hid_device(dev); | |
949 | struct lg4ff_device_entry *entry; | |
950 | struct lg_drv_data *drv_data; | |
951 | size_t count; | |
952 | ||
953 | drv_data = hid_get_drvdata(hid); | |
954 | if (!drv_data) { | |
955 | hid_err(hid, "Private driver data not found!\n"); | |
956 | return 0; | |
957 | } | |
958 | ||
959 | entry = drv_data->device_props; | |
960 | if (!entry) { | |
961 | hid_err(hid, "Device properties not found!\n"); | |
962 | return 0; | |
963 | } | |
964 | ||
965 | count = scnprintf(buf, PAGE_SIZE, "%u\n", entry->wdata.combine); | |
966 | return count; | |
967 | } | |
968 | ||
969 | static ssize_t lg4ff_combine_store(struct device *dev, struct device_attribute *attr, | |
970 | const char *buf, size_t count) | |
971 | { | |
972 | struct hid_device *hid = to_hid_device(dev); | |
973 | struct lg4ff_device_entry *entry; | |
974 | struct lg_drv_data *drv_data; | |
975 | u16 combine = simple_strtoul(buf, NULL, 10); | |
976 | ||
977 | drv_data = hid_get_drvdata(hid); | |
978 | if (!drv_data) { | |
979 | hid_err(hid, "Private driver data not found!\n"); | |
980 | return -EINVAL; | |
981 | } | |
982 | ||
983 | entry = drv_data->device_props; | |
984 | if (!entry) { | |
985 | hid_err(hid, "Device properties not found!\n"); | |
986 | return -EINVAL; | |
987 | } | |
988 | ||
989 | if (combine > 1) | |
990 | combine = 1; | |
991 | ||
992 | entry->wdata.combine = combine; | |
993 | return count; | |
994 | } | |
995 | static DEVICE_ATTR(combine_pedals, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH, lg4ff_combine_show, lg4ff_combine_store); | |
996 | ||
fbf85e2a MM |
997 | /* Export the currently set range of the wheel */ |
998 | static ssize_t lg4ff_range_show(struct device *dev, struct device_attribute *attr, | |
999 | char *buf) | |
30bb75d7 | 1000 | { |
30bb75d7 | 1001 | struct hid_device *hid = to_hid_device(dev); |
3b6b17b7 MM |
1002 | struct lg4ff_device_entry *entry; |
1003 | struct lg_drv_data *drv_data; | |
30bb75d7 MM |
1004 | size_t count; |
1005 | ||
3b6b17b7 MM |
1006 | drv_data = hid_get_drvdata(hid); |
1007 | if (!drv_data) { | |
1008 | hid_err(hid, "Private driver data not found!\n"); | |
1009 | return 0; | |
30bb75d7 | 1010 | } |
3b6b17b7 MM |
1011 | |
1012 | entry = drv_data->device_props; | |
1013 | if (!entry) { | |
1014 | hid_err(hid, "Device properties not found!\n"); | |
30bb75d7 MM |
1015 | return 0; |
1016 | } | |
1017 | ||
72529c65 | 1018 | count = scnprintf(buf, PAGE_SIZE, "%u\n", entry->wdata.range); |
30bb75d7 MM |
1019 | return count; |
1020 | } | |
1021 | ||
1022 | /* Set range to user specified value, call appropriate function | |
1023 | * according to the type of the wheel */ | |
fbf85e2a MM |
1024 | static ssize_t lg4ff_range_store(struct device *dev, struct device_attribute *attr, |
1025 | const char *buf, size_t count) | |
30bb75d7 | 1026 | { |
30bb75d7 | 1027 | struct hid_device *hid = to_hid_device(dev); |
3b6b17b7 MM |
1028 | struct lg4ff_device_entry *entry; |
1029 | struct lg_drv_data *drv_data; | |
2a552c30 | 1030 | u16 range = simple_strtoul(buf, NULL, 10); |
30bb75d7 | 1031 | |
3b6b17b7 MM |
1032 | drv_data = hid_get_drvdata(hid); |
1033 | if (!drv_data) { | |
1034 | hid_err(hid, "Private driver data not found!\n"); | |
29ff6657 | 1035 | return -EINVAL; |
30bb75d7 | 1036 | } |
3b6b17b7 MM |
1037 | |
1038 | entry = drv_data->device_props; | |
1039 | if (!entry) { | |
1040 | hid_err(hid, "Device properties not found!\n"); | |
29ff6657 | 1041 | return -EINVAL; |
30bb75d7 MM |
1042 | } |
1043 | ||
1044 | if (range == 0) | |
72529c65 | 1045 | range = entry->wdata.max_range; |
30bb75d7 MM |
1046 | |
1047 | /* Check if the wheel supports range setting | |
1048 | * and that the range is within limits for the wheel */ | |
72529c65 MM |
1049 | if (entry->wdata.set_range && range >= entry->wdata.min_range && range <= entry->wdata.max_range) { |
1050 | entry->wdata.set_range(hid, range); | |
1051 | entry->wdata.range = range; | |
30bb75d7 MM |
1052 | } |
1053 | ||
1054 | return count; | |
1055 | } | |
fbf85e2a | 1056 | static DEVICE_ATTR(range, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH, lg4ff_range_show, lg4ff_range_store); |
30bb75d7 | 1057 | |
b96d23ec MM |
1058 | static ssize_t lg4ff_real_id_show(struct device *dev, struct device_attribute *attr, char *buf) |
1059 | { | |
1060 | struct hid_device *hid = to_hid_device(dev); | |
1061 | struct lg4ff_device_entry *entry; | |
1062 | struct lg_drv_data *drv_data; | |
1063 | size_t count; | |
1064 | ||
1065 | drv_data = hid_get_drvdata(hid); | |
1066 | if (!drv_data) { | |
1067 | hid_err(hid, "Private driver data not found!\n"); | |
1068 | return 0; | |
1069 | } | |
1070 | ||
1071 | entry = drv_data->device_props; | |
1072 | if (!entry) { | |
1073 | hid_err(hid, "Device properties not found!\n"); | |
1074 | return 0; | |
1075 | } | |
1076 | ||
72529c65 | 1077 | if (!entry->wdata.real_tag || !entry->wdata.real_name) { |
b96d23ec MM |
1078 | hid_err(hid, "NULL pointer to string\n"); |
1079 | return 0; | |
1080 | } | |
1081 | ||
72529c65 | 1082 | count = scnprintf(buf, PAGE_SIZE, "%s: %s\n", entry->wdata.real_tag, entry->wdata.real_name); |
b96d23ec MM |
1083 | return count; |
1084 | } | |
1085 | ||
1086 | static ssize_t lg4ff_real_id_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) | |
1087 | { | |
1088 | /* Real ID is a read-only value */ | |
1089 | return -EPERM; | |
1090 | } | |
1091 | static DEVICE_ATTR(real_id, S_IRUGO, lg4ff_real_id_show, lg4ff_real_id_store); | |
1092 | ||
22bcefdc | 1093 | #ifdef CONFIG_LEDS_CLASS |
2a552c30 | 1094 | static void lg4ff_set_leds(struct hid_device *hid, u8 leds) |
22bcefdc | 1095 | { |
c918fe78 MM |
1096 | struct lg_drv_data *drv_data; |
1097 | struct lg4ff_device_entry *entry; | |
1098 | unsigned long flags; | |
c28abd8c | 1099 | s32 *value; |
74479ba8 | 1100 | |
c918fe78 MM |
1101 | drv_data = hid_get_drvdata(hid); |
1102 | if (!drv_data) { | |
1103 | hid_err(hid, "Private driver data not found!\n"); | |
1104 | return; | |
1105 | } | |
1106 | ||
1107 | entry = drv_data->device_props; | |
1108 | if (!entry) { | |
1109 | hid_err(hid, "Device properties not found!\n"); | |
1110 | return; | |
1111 | } | |
c28abd8c | 1112 | value = entry->report->field[0]->value; |
c918fe78 MM |
1113 | |
1114 | spin_lock_irqsave(&entry->report_lock, flags); | |
74479ba8 MM |
1115 | value[0] = 0xf8; |
1116 | value[1] = 0x12; | |
1117 | value[2] = leds; | |
1118 | value[3] = 0x00; | |
1119 | value[4] = 0x00; | |
1120 | value[5] = 0x00; | |
1121 | value[6] = 0x00; | |
c28abd8c | 1122 | hid_hw_request(hid, entry->report, HID_REQ_SET_REPORT); |
c918fe78 | 1123 | spin_unlock_irqrestore(&entry->report_lock, flags); |
22bcefdc SW |
1124 | } |
1125 | ||
1126 | static void lg4ff_led_set_brightness(struct led_classdev *led_cdev, | |
1127 | enum led_brightness value) | |
1128 | { | |
1129 | struct device *dev = led_cdev->dev->parent; | |
ee79a8f8 | 1130 | struct hid_device *hid = to_hid_device(dev); |
4629fd16 | 1131 | struct lg_drv_data *drv_data = hid_get_drvdata(hid); |
22bcefdc SW |
1132 | struct lg4ff_device_entry *entry; |
1133 | int i, state = 0; | |
1134 | ||
1135 | if (!drv_data) { | |
1136 | hid_err(hid, "Device data not found."); | |
1137 | return; | |
1138 | } | |
1139 | ||
371a1d9e | 1140 | entry = drv_data->device_props; |
22bcefdc SW |
1141 | |
1142 | if (!entry) { | |
1143 | hid_err(hid, "Device properties not found."); | |
1144 | return; | |
1145 | } | |
1146 | ||
1147 | for (i = 0; i < 5; i++) { | |
72529c65 | 1148 | if (led_cdev != entry->wdata.led[i]) |
22bcefdc | 1149 | continue; |
72529c65 | 1150 | state = (entry->wdata.led_state >> i) & 1; |
22bcefdc | 1151 | if (value == LED_OFF && state) { |
72529c65 MM |
1152 | entry->wdata.led_state &= ~(1 << i); |
1153 | lg4ff_set_leds(hid, entry->wdata.led_state); | |
22bcefdc | 1154 | } else if (value != LED_OFF && !state) { |
72529c65 MM |
1155 | entry->wdata.led_state |= 1 << i; |
1156 | lg4ff_set_leds(hid, entry->wdata.led_state); | |
22bcefdc SW |
1157 | } |
1158 | break; | |
1159 | } | |
1160 | } | |
1161 | ||
1162 | static enum led_brightness lg4ff_led_get_brightness(struct led_classdev *led_cdev) | |
1163 | { | |
1164 | struct device *dev = led_cdev->dev->parent; | |
ee79a8f8 | 1165 | struct hid_device *hid = to_hid_device(dev); |
4629fd16 | 1166 | struct lg_drv_data *drv_data = hid_get_drvdata(hid); |
22bcefdc SW |
1167 | struct lg4ff_device_entry *entry; |
1168 | int i, value = 0; | |
1169 | ||
1170 | if (!drv_data) { | |
1171 | hid_err(hid, "Device data not found."); | |
1172 | return LED_OFF; | |
1173 | } | |
1174 | ||
371a1d9e | 1175 | entry = drv_data->device_props; |
22bcefdc SW |
1176 | |
1177 | if (!entry) { | |
1178 | hid_err(hid, "Device properties not found."); | |
1179 | return LED_OFF; | |
1180 | } | |
1181 | ||
1182 | for (i = 0; i < 5; i++) | |
72529c65 MM |
1183 | if (led_cdev == entry->wdata.led[i]) { |
1184 | value = (entry->wdata.led_state >> i) & 1; | |
22bcefdc SW |
1185 | break; |
1186 | } | |
1187 | ||
1188 | return value ? LED_FULL : LED_OFF; | |
1189 | } | |
1190 | #endif | |
1191 | ||
e7c23449 MM |
1192 | static u16 lg4ff_identify_multimode_wheel(struct hid_device *hid, const u16 reported_product_id, const u16 bcdDevice) |
1193 | { | |
bbec1bd0 SW |
1194 | u32 current_mode; |
1195 | int i; | |
e7c23449 | 1196 | |
bbec1bd0 SW |
1197 | /* identify current mode from USB PID */ |
1198 | for (i = 1; i < ARRAY_SIZE(lg4ff_alternate_modes); i++) { | |
1199 | dbg_hid("Testing whether PID is %X\n", lg4ff_alternate_modes[i].product_id); | |
1200 | if (reported_product_id == lg4ff_alternate_modes[i].product_id) | |
1201 | break; | |
e7c23449 MM |
1202 | } |
1203 | ||
bbec1bd0 SW |
1204 | if (i == ARRAY_SIZE(lg4ff_alternate_modes)) |
1205 | return 0; | |
1206 | ||
1207 | current_mode = BIT(i); | |
1208 | ||
1209 | for (i = 0; i < ARRAY_SIZE(lg4ff_main_checklist); i++) { | |
1210 | const u16 mask = lg4ff_main_checklist[i]->mask; | |
1211 | const u16 result = lg4ff_main_checklist[i]->result; | |
1212 | const u16 real_product_id = lg4ff_main_checklist[i]->real_product_id; | |
e7c23449 | 1213 | |
bbec1bd0 SW |
1214 | if ((current_mode & lg4ff_main_checklist[i]->modes) && \ |
1215 | (bcdDevice & mask) == result) { | |
e7c23449 MM |
1216 | dbg_hid("Found wheel with real PID %X whose reported PID is %X\n", real_product_id, reported_product_id); |
1217 | return real_product_id; | |
1218 | } | |
1219 | } | |
1220 | ||
f31a2de3 MM |
1221 | /* No match found. This is either Driving Force or an unknown |
1222 | * wheel model, do not touch it */ | |
e7c23449 MM |
1223 | dbg_hid("Wheel with bcdDevice %X was not recognized as multimode wheel, leaving in its current mode\n", bcdDevice); |
1224 | return 0; | |
1225 | } | |
1226 | ||
1227 | static int lg4ff_handle_multimode_wheel(struct hid_device *hid, u16 *real_product_id, const u16 bcdDevice) | |
1228 | { | |
1229 | const u16 reported_product_id = hid->product; | |
1230 | int ret; | |
1231 | ||
1232 | *real_product_id = lg4ff_identify_multimode_wheel(hid, reported_product_id, bcdDevice); | |
1233 | /* Probed wheel is not a multimode wheel */ | |
1234 | if (!*real_product_id) { | |
1235 | *real_product_id = reported_product_id; | |
1236 | dbg_hid("Wheel is not a multimode wheel\n"); | |
1237 | return LG4FF_MMODE_NOT_MULTIMODE; | |
1238 | } | |
1239 | ||
1240 | /* Switch from "Driving Force" mode to native mode automatically. | |
1241 | * Otherwise keep the wheel in its current mode */ | |
1242 | if (reported_product_id == USB_DEVICE_ID_LOGITECH_WHEEL && | |
a54dc779 MM |
1243 | reported_product_id != *real_product_id && |
1244 | !lg4ff_no_autoswitch) { | |
f31a2de3 | 1245 | const struct lg4ff_compat_mode_switch *s = lg4ff_get_mode_switch_command(*real_product_id, *real_product_id); |
e7c23449 | 1246 | |
f31a2de3 | 1247 | if (!s) { |
e7c23449 | 1248 | hid_err(hid, "Invalid product id %X\n", *real_product_id); |
b96d23ec | 1249 | return LG4FF_MMODE_NOT_MULTIMODE; |
e7c23449 MM |
1250 | } |
1251 | ||
1252 | ret = lg4ff_switch_compatibility_mode(hid, s); | |
1253 | if (ret) { | |
1254 | /* Wheel could not have been switched to native mode, | |
1255 | * leave it in "Driving Force" mode and continue */ | |
1256 | hid_err(hid, "Unable to switch wheel mode, errno %d\n", ret); | |
b96d23ec | 1257 | return LG4FF_MMODE_IS_MULTIMODE; |
e7c23449 MM |
1258 | } |
1259 | return LG4FF_MMODE_SWITCHED; | |
1260 | } | |
1261 | ||
b96d23ec | 1262 | return LG4FF_MMODE_IS_MULTIMODE; |
e7c23449 MM |
1263 | } |
1264 | ||
1265 | ||
32c88cbc SW |
1266 | int lg4ff_init(struct hid_device *hid) |
1267 | { | |
1268 | struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list); | |
32c88cbc | 1269 | struct input_dev *dev = hidinput->input; |
c28abd8c MM |
1270 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; |
1271 | struct hid_report *report = list_entry(report_list->next, struct hid_report, list); | |
e7c23449 MM |
1272 | const struct usb_device_descriptor *udesc = &(hid_to_usb_dev(hid)->descriptor); |
1273 | const u16 bcdDevice = le16_to_cpu(udesc->bcdDevice); | |
5d9d60ad | 1274 | const struct lg4ff_multimode_wheel *mmode_wheel = NULL; |
30bb75d7 | 1275 | struct lg4ff_device_entry *entry; |
3b6b17b7 | 1276 | struct lg_drv_data *drv_data; |
b96d23ec MM |
1277 | int error, i, j; |
1278 | int mmode_ret, mmode_idx = -1; | |
e7c23449 | 1279 | u16 real_product_id; |
32c88cbc | 1280 | |
32c88cbc | 1281 | /* Check that the report looks ok */ |
0fb6bd06 | 1282 | if (!hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 7)) |
32c88cbc | 1283 | return -1; |
30bb75d7 | 1284 | |
72529c65 MM |
1285 | drv_data = hid_get_drvdata(hid); |
1286 | if (!drv_data) { | |
1287 | hid_err(hid, "Cannot add device, private driver data not allocated\n"); | |
1288 | return -1; | |
1289 | } | |
1290 | entry = kzalloc(sizeof(*entry), GFP_KERNEL); | |
1291 | if (!entry) | |
1292 | return -ENOMEM; | |
c918fe78 | 1293 | spin_lock_init(&entry->report_lock); |
c28abd8c | 1294 | entry->report = report; |
72529c65 MM |
1295 | drv_data->device_props = entry; |
1296 | ||
e7c23449 MM |
1297 | /* Check if a multimode wheel has been connected and |
1298 | * handle it appropriately */ | |
b96d23ec | 1299 | mmode_ret = lg4ff_handle_multimode_wheel(hid, &real_product_id, bcdDevice); |
e7c23449 MM |
1300 | |
1301 | /* Wheel has been told to switch to native mode. There is no point in going on | |
1302 | * with the initialization as the wheel will do a USB reset when it switches mode | |
1303 | */ | |
b96d23ec | 1304 | if (mmode_ret == LG4FF_MMODE_SWITCHED) |
e7c23449 | 1305 | return 0; |
72529c65 MM |
1306 | else if (mmode_ret < 0) { |
1307 | hid_err(hid, "Unable to switch device mode during initialization, errno %d\n", mmode_ret); | |
1308 | error = mmode_ret; | |
1309 | goto err_init; | |
1310 | } | |
e7c23449 | 1311 | |
7362cd22 MM |
1312 | /* Check what wheel has been connected */ |
1313 | for (i = 0; i < ARRAY_SIZE(lg4ff_devices); i++) { | |
1314 | if (hid->product == lg4ff_devices[i].product_id) { | |
1315 | dbg_hid("Found compatible device, product ID %04X\n", lg4ff_devices[i].product_id); | |
1316 | break; | |
1317 | } | |
1318 | } | |
1319 | ||
1320 | if (i == ARRAY_SIZE(lg4ff_devices)) { | |
9c2a6bd1 MM |
1321 | hid_err(hid, "This device is flagged to be handled by the lg4ff module but this module does not know how to handle it. " |
1322 | "Please report this as a bug to LKML, Simon Wood <simon@mungewell.org> or " | |
1323 | "Michal Maly <madcatxster@devoid-pointer.net>\n"); | |
72529c65 MM |
1324 | error = -1; |
1325 | goto err_init; | |
7362cd22 | 1326 | } |
32c88cbc | 1327 | |
b96d23ec MM |
1328 | if (mmode_ret == LG4FF_MMODE_IS_MULTIMODE) { |
1329 | for (mmode_idx = 0; mmode_idx < ARRAY_SIZE(lg4ff_multimode_wheels); mmode_idx++) { | |
1330 | if (real_product_id == lg4ff_multimode_wheels[mmode_idx].product_id) | |
1331 | break; | |
1332 | } | |
1333 | ||
1334 | if (mmode_idx == ARRAY_SIZE(lg4ff_multimode_wheels)) { | |
1335 | hid_err(hid, "Device product ID %X is not listed as a multimode wheel", real_product_id); | |
72529c65 MM |
1336 | error = -1; |
1337 | goto err_init; | |
b96d23ec MM |
1338 | } |
1339 | } | |
1340 | ||
7362cd22 MM |
1341 | /* Set supported force feedback capabilities */ |
1342 | for (j = 0; lg4ff_devices[i].ff_effects[j] >= 0; j++) | |
1343 | set_bit(lg4ff_devices[i].ff_effects[j], dev->ffbit); | |
32c88cbc | 1344 | |
d0afd848 | 1345 | error = input_ff_create_memless(dev, NULL, lg4ff_play); |
32c88cbc SW |
1346 | |
1347 | if (error) | |
72529c65 | 1348 | goto err_init; |
30bb75d7 | 1349 | |
5d9d60ad | 1350 | /* Initialize device properties */ |
b96d23ec MM |
1351 | if (mmode_ret == LG4FF_MMODE_IS_MULTIMODE) { |
1352 | BUG_ON(mmode_idx == -1); | |
5d9d60ad | 1353 | mmode_wheel = &lg4ff_multimode_wheels[mmode_idx]; |
b96d23ec | 1354 | } |
5d9d60ad | 1355 | lg4ff_init_wheel_data(&entry->wdata, &lg4ff_devices[i], mmode_wheel, real_product_id); |
30bb75d7 | 1356 | |
114a55cf SW |
1357 | /* Check if autocentering is available and |
1358 | * set the centering force to zero by default */ | |
1359 | if (test_bit(FF_AUTOCENTER, dev->ffbit)) { | |
e7c23449 MM |
1360 | /* Formula Force EX expects different autocentering command */ |
1361 | if ((bcdDevice >> 8) == LG4FF_FFEX_REV_MAJ && | |
1362 | (bcdDevice & 0xff) == LG4FF_FFEX_REV_MIN) | |
d0afd848 | 1363 | dev->ff->set_autocenter = lg4ff_set_autocenter_ffex; |
114a55cf | 1364 | else |
d0afd848 | 1365 | dev->ff->set_autocenter = lg4ff_set_autocenter_default; |
114a55cf SW |
1366 | |
1367 | dev->ff->set_autocenter(dev, 0); | |
1368 | } | |
1369 | ||
30bb75d7 | 1370 | /* Create sysfs interface */ |
961af46f SW |
1371 | error = device_create_file(&hid->dev, &dev_attr_combine_pedals); |
1372 | if (error) | |
1373 | hid_warn(hid, "Unable to create sysfs interface for \"combine\", errno %d\n", error); | |
30bb75d7 MM |
1374 | error = device_create_file(&hid->dev, &dev_attr_range); |
1375 | if (error) | |
d61a70ec | 1376 | hid_warn(hid, "Unable to create sysfs interface for \"range\", errno %d\n", error); |
b96d23ec MM |
1377 | if (mmode_ret == LG4FF_MMODE_IS_MULTIMODE) { |
1378 | error = device_create_file(&hid->dev, &dev_attr_real_id); | |
1379 | if (error) | |
d61a70ec | 1380 | hid_warn(hid, "Unable to create sysfs interface for \"real_id\", errno %d\n", error); |
b96d23ec MM |
1381 | error = device_create_file(&hid->dev, &dev_attr_alternate_modes); |
1382 | if (error) | |
d61a70ec | 1383 | hid_warn(hid, "Unable to create sysfs interface for \"alternate_modes\", errno %d\n", error); |
b96d23ec | 1384 | } |
30bb75d7 MM |
1385 | dbg_hid("sysfs interface created\n"); |
1386 | ||
1387 | /* Set the maximum range to start with */ | |
72529c65 MM |
1388 | entry->wdata.range = entry->wdata.max_range; |
1389 | if (entry->wdata.set_range) | |
1390 | entry->wdata.set_range(hid, entry->wdata.range); | |
30bb75d7 | 1391 | |
22bcefdc | 1392 | #ifdef CONFIG_LEDS_CLASS |
29fae1c8 | 1393 | /* register led subsystem - G27/G29 only */ |
72529c65 | 1394 | entry->wdata.led_state = 0; |
22bcefdc | 1395 | for (j = 0; j < 5; j++) |
72529c65 | 1396 | entry->wdata.led[j] = NULL; |
22bcefdc | 1397 | |
29fae1c8 SW |
1398 | if (lg4ff_devices[i].product_id == USB_DEVICE_ID_LOGITECH_G27_WHEEL || |
1399 | lg4ff_devices[i].product_id == USB_DEVICE_ID_LOGITECH_G29_WHEEL) { | |
22bcefdc SW |
1400 | struct led_classdev *led; |
1401 | size_t name_sz; | |
1402 | char *name; | |
1403 | ||
1404 | lg4ff_set_leds(hid, 0); | |
1405 | ||
1406 | name_sz = strlen(dev_name(&hid->dev)) + 8; | |
1407 | ||
1408 | for (j = 0; j < 5; j++) { | |
1409 | led = kzalloc(sizeof(struct led_classdev)+name_sz, GFP_KERNEL); | |
1410 | if (!led) { | |
1411 | hid_err(hid, "can't allocate memory for LED %d\n", j); | |
72529c65 | 1412 | goto err_leds; |
22bcefdc SW |
1413 | } |
1414 | ||
1415 | name = (void *)(&led[1]); | |
1416 | snprintf(name, name_sz, "%s::RPM%d", dev_name(&hid->dev), j+1); | |
1417 | led->name = name; | |
1418 | led->brightness = 0; | |
1419 | led->max_brightness = 1; | |
1420 | led->brightness_get = lg4ff_led_get_brightness; | |
1421 | led->brightness_set = lg4ff_led_set_brightness; | |
1422 | ||
72529c65 | 1423 | entry->wdata.led[j] = led; |
22bcefdc SW |
1424 | error = led_classdev_register(&hid->dev, led); |
1425 | ||
1426 | if (error) { | |
1427 | hid_err(hid, "failed to register LED %d. Aborting.\n", j); | |
72529c65 | 1428 | err_leds: |
22bcefdc SW |
1429 | /* Deregister LEDs (if any) */ |
1430 | for (j = 0; j < 5; j++) { | |
72529c65 MM |
1431 | led = entry->wdata.led[j]; |
1432 | entry->wdata.led[j] = NULL; | |
22bcefdc SW |
1433 | if (!led) |
1434 | continue; | |
1435 | led_classdev_unregister(led); | |
1436 | kfree(led); | |
1437 | } | |
1438 | goto out; /* Let the driver continue without LEDs */ | |
1439 | } | |
1440 | } | |
1441 | } | |
22bcefdc | 1442 | out: |
c6e6dc87 | 1443 | #endif |
64013800 | 1444 | hid_info(hid, "Force feedback support for Logitech Gaming Wheels\n"); |
32c88cbc | 1445 | return 0; |
72529c65 MM |
1446 | |
1447 | err_init: | |
1448 | drv_data->device_props = NULL; | |
1449 | kfree(entry); | |
1450 | return error; | |
32c88cbc SW |
1451 | } |
1452 | ||
30bb75d7 MM |
1453 | int lg4ff_deinit(struct hid_device *hid) |
1454 | { | |
30bb75d7 | 1455 | struct lg4ff_device_entry *entry; |
3b6b17b7 MM |
1456 | struct lg_drv_data *drv_data; |
1457 | ||
3b6b17b7 MM |
1458 | drv_data = hid_get_drvdata(hid); |
1459 | if (!drv_data) { | |
1460 | hid_err(hid, "Error while deinitializing device, no private driver data.\n"); | |
1461 | return -1; | |
30bb75d7 | 1462 | } |
3b6b17b7 | 1463 | entry = drv_data->device_props; |
e7c23449 MM |
1464 | if (!entry) |
1465 | goto out; /* Nothing more to do */ | |
1466 | ||
b96d23ec | 1467 | /* Multimode devices will have at least the "MODE_NATIVE" bit set */ |
72529c65 | 1468 | if (entry->wdata.alternate_modes) { |
b96d23ec MM |
1469 | device_remove_file(&hid->dev, &dev_attr_real_id); |
1470 | device_remove_file(&hid->dev, &dev_attr_alternate_modes); | |
1471 | } | |
1472 | ||
961af46f | 1473 | device_remove_file(&hid->dev, &dev_attr_combine_pedals); |
72529c65 | 1474 | device_remove_file(&hid->dev, &dev_attr_range); |
22bcefdc SW |
1475 | #ifdef CONFIG_LEDS_CLASS |
1476 | { | |
1477 | int j; | |
1478 | struct led_classdev *led; | |
1479 | ||
1480 | /* Deregister LEDs (if any) */ | |
1481 | for (j = 0; j < 5; j++) { | |
1482 | ||
72529c65 MM |
1483 | led = entry->wdata.led[j]; |
1484 | entry->wdata.led[j] = NULL; | |
22bcefdc SW |
1485 | if (!led) |
1486 | continue; | |
1487 | led_classdev_unregister(led); | |
1488 | kfree(led); | |
1489 | } | |
1490 | } | |
1491 | #endif | |
b211a638 MM |
1492 | hid_hw_stop(hid); |
1493 | drv_data->device_props = NULL; | |
22bcefdc | 1494 | |
3b6b17b7 | 1495 | kfree(entry); |
e7c23449 | 1496 | out: |
30bb75d7 MM |
1497 | dbg_hid("Device successfully unregistered\n"); |
1498 | return 0; | |
1499 | } |