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Commit | Line | Data |
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32c88cbc | 1 | /* |
64013800 | 2 | * Force feedback support for Logitech Gaming Wheels |
32c88cbc | 3 | * |
64013800 SW |
4 | * Including G27, G25, DFP, DFGT, FFEX, Momo, Momo2 & |
5 | * Speed Force Wireless (WiiWheel) | |
32c88cbc SW |
6 | * |
7 | * Copyright (c) 2010 Simon Wood <simon@mungewell.org> | |
8 | */ | |
9 | ||
10 | /* | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; either version 2 of the License, or | |
14 | * (at your option) any later version. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, | |
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License | |
22 | * along with this program; if not, write to the Free Software | |
23 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
24 | */ | |
25 | ||
26 | ||
27 | #include <linux/input.h> | |
28 | #include <linux/usb.h> | |
29 | #include <linux/hid.h> | |
30 | ||
31 | #include "usbhid/usbhid.h" | |
32 | #include "hid-lg.h" | |
7362cd22 | 33 | #include "hid-ids.h" |
32c88cbc | 34 | |
30bb75d7 MM |
35 | #define to_hid_device(pdev) container_of(pdev, struct hid_device, dev) |
36 | ||
b96d23ec | 37 | #define LG4FF_MMODE_IS_MULTIMODE 0 |
e7c23449 MM |
38 | #define LG4FF_MMODE_SWITCHED 1 |
39 | #define LG4FF_MMODE_NOT_MULTIMODE 2 | |
40 | ||
b96d23ec MM |
41 | #define LG4FF_MODE_NATIVE_IDX 0 |
42 | #define LG4FF_MODE_DFEX_IDX 1 | |
43 | #define LG4FF_MODE_DFP_IDX 2 | |
44 | #define LG4FF_MODE_G25_IDX 3 | |
45 | #define LG4FF_MODE_DFGT_IDX 4 | |
46 | #define LG4FF_MODE_G27_IDX 5 | |
47 | #define LG4FF_MODE_MAX_IDX 6 | |
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) | |
55 | ||
56 | #define LG4FF_DFEX_TAG "DF-EX" | |
57 | #define LG4FF_DFEX_NAME "Driving Force / Formula EX" | |
58 | #define LG4FF_DFP_TAG "DFP" | |
59 | #define LG4FF_DFP_NAME "Driving Force Pro" | |
60 | #define LG4FF_G25_TAG "G25" | |
61 | #define LG4FF_G25_NAME "G25 Racing Wheel" | |
62 | #define LG4FF_G27_TAG "G27" | |
63 | #define LG4FF_G27_NAME "G27 Racing Wheel" | |
64 | #define LG4FF_DFGT_TAG "DFGT" | |
65 | #define LG4FF_DFGT_NAME "Driving Force GT" | |
66 | ||
e7c23449 MM |
67 | #define LG4FF_FFEX_REV_MAJ 0x21 |
68 | #define LG4FF_FFEX_REV_MIN 0x00 | |
69 | ||
30bb75d7 MM |
70 | static void hid_lg4ff_set_range_dfp(struct hid_device *hid, u16 range); |
71 | static void hid_lg4ff_set_range_g25(struct hid_device *hid, u16 range); | |
30bb75d7 | 72 | |
30bb75d7 | 73 | struct lg4ff_device_entry { |
2b24a960 | 74 | __u32 product_id; |
30bb75d7 MM |
75 | __u16 range; |
76 | __u16 min_range; | |
77 | __u16 max_range; | |
22bcefdc SW |
78 | #ifdef CONFIG_LEDS_CLASS |
79 | __u8 led_state; | |
80 | struct led_classdev *led[5]; | |
81 | #endif | |
b96d23ec MM |
82 | u32 alternate_modes; |
83 | const char *real_tag; | |
84 | const char *real_name; | |
85 | u16 real_product_id; | |
30bb75d7 MM |
86 | struct list_head list; |
87 | void (*set_range)(struct hid_device *hid, u16 range); | |
88 | }; | |
89 | ||
7362cd22 | 90 | static const signed short lg4ff_wheel_effects[] = { |
32c88cbc SW |
91 | FF_CONSTANT, |
92 | FF_AUTOCENTER, | |
93 | -1 | |
94 | }; | |
95 | ||
7362cd22 MM |
96 | struct lg4ff_wheel { |
97 | const __u32 product_id; | |
98 | const signed short *ff_effects; | |
99 | const __u16 min_range; | |
100 | const __u16 max_range; | |
30bb75d7 | 101 | void (*set_range)(struct hid_device *hid, u16 range); |
7362cd22 MM |
102 | }; |
103 | ||
e7c23449 MM |
104 | struct lg4ff_compat_mode_switch { |
105 | const __u8 cmd_count; /* Number of commands to send */ | |
106 | const __u8 cmd[]; | |
107 | }; | |
108 | ||
109 | struct lg4ff_wheel_ident_info { | |
110 | const u16 mask; | |
111 | const u16 result; | |
112 | const u16 real_product_id; | |
113 | }; | |
114 | ||
115 | struct lg4ff_wheel_ident_checklist { | |
116 | const u32 count; | |
117 | const struct lg4ff_wheel_ident_info *models[]; | |
118 | }; | |
119 | ||
b96d23ec MM |
120 | struct lg4ff_multimode_wheel { |
121 | const u16 product_id; | |
122 | const u32 alternate_modes; | |
123 | const char *real_tag; | |
124 | const char *real_name; | |
125 | }; | |
126 | ||
127 | struct lg4ff_alternate_mode { | |
128 | const u16 product_id; | |
129 | const char *tag; | |
130 | const char *name; | |
131 | }; | |
132 | ||
7362cd22 | 133 | static const struct lg4ff_wheel lg4ff_devices[] = { |
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}, | |
136 | {USB_DEVICE_ID_LOGITECH_DFP_WHEEL, lg4ff_wheel_effects, 40, 900, hid_lg4ff_set_range_dfp}, | |
137 | {USB_DEVICE_ID_LOGITECH_G25_WHEEL, lg4ff_wheel_effects, 40, 900, hid_lg4ff_set_range_g25}, | |
138 | {USB_DEVICE_ID_LOGITECH_DFGT_WHEEL, lg4ff_wheel_effects, 40, 900, hid_lg4ff_set_range_g25}, | |
139 | {USB_DEVICE_ID_LOGITECH_G27_WHEEL, lg4ff_wheel_effects, 40, 900, hid_lg4ff_set_range_g25}, | |
140 | {USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2, lg4ff_wheel_effects, 40, 270, NULL}, | |
141 | {USB_DEVICE_ID_LOGITECH_WII_WHEEL, lg4ff_wheel_effects, 40, 270, NULL} | |
7362cd22 MM |
142 | }; |
143 | ||
b96d23ec MM |
144 | static const struct lg4ff_multimode_wheel lg4ff_multimode_wheels[] = { |
145 | {USB_DEVICE_ID_LOGITECH_DFP_WHEEL, | |
146 | LG4FF_MODE_NATIVE | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, | |
147 | LG4FF_DFP_TAG, LG4FF_DFP_NAME}, | |
148 | {USB_DEVICE_ID_LOGITECH_G25_WHEEL, | |
149 | LG4FF_MODE_NATIVE | LG4FF_MODE_G25 | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, | |
150 | LG4FF_G25_TAG, LG4FF_G25_NAME}, | |
151 | {USB_DEVICE_ID_LOGITECH_DFGT_WHEEL, | |
152 | LG4FF_MODE_NATIVE | LG4FF_MODE_DFGT | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, | |
153 | LG4FF_DFGT_TAG, LG4FF_DFGT_NAME}, | |
154 | {USB_DEVICE_ID_LOGITECH_G27_WHEEL, | |
155 | LG4FF_MODE_NATIVE | LG4FF_MODE_G27 | LG4FF_MODE_G25 | LG4FF_MODE_DFP | LG4FF_MODE_DFEX, | |
156 | LG4FF_G27_TAG, LG4FF_G27_NAME}, | |
157 | }; | |
158 | ||
159 | static const struct lg4ff_alternate_mode lg4ff_alternate_modes[] = { | |
160 | [LG4FF_MODE_NATIVE_IDX] = {0, "native", ""}, | |
161 | [LG4FF_MODE_DFEX_IDX] = {USB_DEVICE_ID_LOGITECH_WHEEL, LG4FF_DFEX_TAG, LG4FF_DFEX_NAME}, | |
162 | [LG4FF_MODE_DFP_IDX] = {USB_DEVICE_ID_LOGITECH_DFP_WHEEL, LG4FF_DFP_TAG, LG4FF_DFP_NAME}, | |
163 | [LG4FF_MODE_G25_IDX] = {USB_DEVICE_ID_LOGITECH_G25_WHEEL, LG4FF_G25_TAG, LG4FF_G25_NAME}, | |
164 | [LG4FF_MODE_DFGT_IDX] = {USB_DEVICE_ID_LOGITECH_DFGT_WHEEL, LG4FF_DFGT_TAG, LG4FF_DFGT_NAME}, | |
165 | [LG4FF_MODE_G27_IDX] = {USB_DEVICE_ID_LOGITECH_G27_WHEEL, LG4FF_G27_TAG, LG4FF_G27_NAME} | |
166 | }; | |
167 | ||
e7c23449 MM |
168 | /* Multimode wheel identificators */ |
169 | static const struct lg4ff_wheel_ident_info lg4ff_dfp_ident_info = { | |
170 | 0xf000, | |
171 | 0x1000, | |
172 | USB_DEVICE_ID_LOGITECH_DFP_WHEEL | |
173 | }; | |
174 | ||
175 | static const struct lg4ff_wheel_ident_info lg4ff_g25_ident_info = { | |
176 | 0xff00, | |
177 | 0x1200, | |
178 | USB_DEVICE_ID_LOGITECH_G25_WHEEL | |
179 | }; | |
180 | ||
181 | static const struct lg4ff_wheel_ident_info lg4ff_g27_ident_info = { | |
182 | 0xfff0, | |
183 | 0x1230, | |
184 | USB_DEVICE_ID_LOGITECH_G27_WHEEL | |
96440c8a MM |
185 | }; |
186 | ||
e7c23449 MM |
187 | static const struct lg4ff_wheel_ident_info lg4ff_dfgt_ident_info = { |
188 | 0xff00, | |
189 | 0x1300, | |
190 | USB_DEVICE_ID_LOGITECH_DFGT_WHEEL | |
96440c8a MM |
191 | }; |
192 | ||
e7c23449 MM |
193 | /* Multimode wheel identification checklists */ |
194 | static const struct lg4ff_wheel_ident_checklist lg4ff_main_checklist = { | |
195 | 4, | |
196 | {&lg4ff_dfgt_ident_info, | |
197 | &lg4ff_g27_ident_info, | |
198 | &lg4ff_g25_ident_info, | |
199 | &lg4ff_dfp_ident_info} | |
200 | }; | |
201 | ||
202 | /* Compatibility mode switching commands */ | |
203 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_dfp = { | |
96440c8a MM |
204 | 1, |
205 | {0xf8, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00} | |
206 | }; | |
207 | ||
e7c23449 | 208 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_dfgt = { |
96440c8a MM |
209 | 2, |
210 | {0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* 1st command */ | |
211 | 0xf8, 0x09, 0x03, 0x01, 0x00, 0x00, 0x00} /* 2nd command */ | |
212 | }; | |
213 | ||
e7c23449 | 214 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_g25 = { |
96440c8a MM |
215 | 1, |
216 | {0xf8, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00} | |
217 | }; | |
218 | ||
e7c23449 | 219 | static const struct lg4ff_compat_mode_switch lg4ff_mode_switch_g27 = { |
96440c8a MM |
220 | 2, |
221 | {0xf8, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, /* 1st command */ | |
222 | 0xf8, 0x09, 0x04, 0x01, 0x00, 0x00, 0x00} /* 2nd command */ | |
223 | }; | |
224 | ||
2b24a960 MM |
225 | /* Recalculates X axis value accordingly to currently selected range */ |
226 | static __s32 lg4ff_adjust_dfp_x_axis(__s32 value, __u16 range) | |
227 | { | |
228 | __u16 max_range; | |
229 | __s32 new_value; | |
230 | ||
231 | if (range == 900) | |
232 | return value; | |
233 | else if (range == 200) | |
234 | return value; | |
235 | else if (range < 200) | |
236 | max_range = 200; | |
237 | else | |
238 | max_range = 900; | |
239 | ||
240 | new_value = 8192 + mult_frac(value - 8192, max_range, range); | |
241 | if (new_value < 0) | |
242 | return 0; | |
243 | else if (new_value > 16383) | |
244 | return 16383; | |
245 | else | |
246 | return new_value; | |
247 | } | |
248 | ||
249 | int lg4ff_adjust_input_event(struct hid_device *hid, struct hid_field *field, | |
250 | struct hid_usage *usage, __s32 value, struct lg_drv_data *drv_data) | |
251 | { | |
252 | struct lg4ff_device_entry *entry = drv_data->device_props; | |
253 | __s32 new_value = 0; | |
254 | ||
255 | if (!entry) { | |
256 | hid_err(hid, "Device properties not found"); | |
257 | return 0; | |
258 | } | |
259 | ||
260 | switch (entry->product_id) { | |
261 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
262 | switch (usage->code) { | |
263 | case ABS_X: | |
264 | new_value = lg4ff_adjust_dfp_x_axis(value, entry->range); | |
265 | input_event(field->hidinput->input, usage->type, usage->code, new_value); | |
266 | return 1; | |
267 | default: | |
268 | return 0; | |
269 | } | |
270 | default: | |
271 | return 0; | |
272 | } | |
273 | } | |
274 | ||
30bb75d7 | 275 | static int hid_lg4ff_play(struct input_dev *dev, void *data, struct ff_effect *effect) |
32c88cbc SW |
276 | { |
277 | struct hid_device *hid = input_get_drvdata(dev); | |
278 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; | |
279 | struct hid_report *report = list_entry(report_list->next, struct hid_report, list); | |
74479ba8 | 280 | __s32 *value = report->field[0]->value; |
32c88cbc SW |
281 | int x; |
282 | ||
a80fe5d6 | 283 | #define CLAMP(x) do { if (x < 0) x = 0; else if (x > 0xff) x = 0xff; } while (0) |
32c88cbc SW |
284 | |
285 | switch (effect->type) { | |
286 | case FF_CONSTANT: | |
287 | x = effect->u.ramp.start_level + 0x80; /* 0x80 is no force */ | |
288 | CLAMP(x); | |
56930e7a SW |
289 | |
290 | if (x == 0x80) { | |
291 | /* De-activate force in slot-1*/ | |
292 | value[0] = 0x13; | |
293 | value[1] = 0x00; | |
294 | value[2] = 0x00; | |
295 | value[3] = 0x00; | |
296 | value[4] = 0x00; | |
297 | value[5] = 0x00; | |
298 | value[6] = 0x00; | |
299 | ||
300 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); | |
301 | return 0; | |
302 | } | |
303 | ||
74479ba8 MM |
304 | value[0] = 0x11; /* Slot 1 */ |
305 | value[1] = 0x08; | |
306 | value[2] = x; | |
307 | value[3] = 0x80; | |
308 | value[4] = 0x00; | |
309 | value[5] = 0x00; | |
310 | value[6] = 0x00; | |
32c88cbc | 311 | |
d8814272 | 312 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); |
32c88cbc SW |
313 | break; |
314 | } | |
315 | return 0; | |
316 | } | |
317 | ||
6e2de8e0 MM |
318 | /* Sends default autocentering command compatible with |
319 | * all wheels except Formula Force EX */ | |
320 | static void hid_lg4ff_set_autocenter_default(struct input_dev *dev, u16 magnitude) | |
32c88cbc SW |
321 | { |
322 | struct hid_device *hid = input_get_drvdata(dev); | |
323 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; | |
324 | struct hid_report *report = list_entry(report_list->next, struct hid_report, list); | |
74479ba8 | 325 | __s32 *value = report->field[0]->value; |
f8c23156 | 326 | __u32 expand_a, expand_b; |
1859762e SW |
327 | struct lg4ff_device_entry *entry; |
328 | struct lg_drv_data *drv_data; | |
329 | ||
330 | drv_data = hid_get_drvdata(hid); | |
331 | if (!drv_data) { | |
332 | hid_err(hid, "Private driver data not found!\n"); | |
333 | return; | |
334 | } | |
335 | ||
336 | entry = drv_data->device_props; | |
337 | if (!entry) { | |
338 | hid_err(hid, "Device properties not found!\n"); | |
339 | return; | |
340 | } | |
f8c23156 | 341 | |
d2c02da5 SW |
342 | /* De-activate Auto-Center */ |
343 | if (magnitude == 0) { | |
344 | value[0] = 0xf5; | |
345 | value[1] = 0x00; | |
346 | value[2] = 0x00; | |
347 | value[3] = 0x00; | |
348 | value[4] = 0x00; | |
349 | value[5] = 0x00; | |
350 | value[6] = 0x00; | |
351 | ||
352 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); | |
353 | return; | |
354 | } | |
355 | ||
f8c23156 SW |
356 | if (magnitude <= 0xaaaa) { |
357 | expand_a = 0x0c * magnitude; | |
358 | expand_b = 0x80 * magnitude; | |
359 | } else { | |
360 | expand_a = (0x0c * 0xaaaa) + 0x06 * (magnitude - 0xaaaa); | |
361 | expand_b = (0x80 * 0xaaaa) + 0xff * (magnitude - 0xaaaa); | |
362 | } | |
32c88cbc | 363 | |
1859762e SW |
364 | /* Adjust for non-MOMO wheels */ |
365 | switch (entry->product_id) { | |
366 | case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL: | |
367 | case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2: | |
368 | break; | |
369 | default: | |
370 | expand_a = expand_a >> 1; | |
371 | break; | |
372 | } | |
373 | ||
74479ba8 MM |
374 | value[0] = 0xfe; |
375 | value[1] = 0x0d; | |
f8c23156 SW |
376 | value[2] = expand_a / 0xaaaa; |
377 | value[3] = expand_a / 0xaaaa; | |
378 | value[4] = expand_b / 0xaaaa; | |
74479ba8 MM |
379 | value[5] = 0x00; |
380 | value[6] = 0x00; | |
32c88cbc | 381 | |
d8814272 | 382 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); |
d2c02da5 SW |
383 | |
384 | /* Activate Auto-Center */ | |
385 | value[0] = 0x14; | |
386 | value[1] = 0x00; | |
387 | value[2] = 0x00; | |
388 | value[3] = 0x00; | |
389 | value[4] = 0x00; | |
390 | value[5] = 0x00; | |
391 | value[6] = 0x00; | |
392 | ||
393 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); | |
32c88cbc SW |
394 | } |
395 | ||
6e2de8e0 MM |
396 | /* Sends autocentering command compatible with Formula Force EX */ |
397 | static void hid_lg4ff_set_autocenter_ffex(struct input_dev *dev, u16 magnitude) | |
398 | { | |
399 | struct hid_device *hid = input_get_drvdata(dev); | |
400 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; | |
401 | struct hid_report *report = list_entry(report_list->next, struct hid_report, list); | |
74479ba8 | 402 | __s32 *value = report->field[0]->value; |
6e2de8e0 | 403 | magnitude = magnitude * 90 / 65535; |
6e2de8e0 | 404 | |
74479ba8 MM |
405 | value[0] = 0xfe; |
406 | value[1] = 0x03; | |
407 | value[2] = magnitude >> 14; | |
408 | value[3] = magnitude >> 14; | |
409 | value[4] = magnitude; | |
410 | value[5] = 0x00; | |
411 | value[6] = 0x00; | |
6e2de8e0 | 412 | |
d8814272 | 413 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); |
6e2de8e0 MM |
414 | } |
415 | ||
30bb75d7 MM |
416 | /* Sends command to set range compatible with G25/G27/Driving Force GT */ |
417 | static void hid_lg4ff_set_range_g25(struct hid_device *hid, u16 range) | |
418 | { | |
419 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; | |
420 | struct hid_report *report = list_entry(report_list->next, struct hid_report, list); | |
74479ba8 MM |
421 | __s32 *value = report->field[0]->value; |
422 | ||
30bb75d7 MM |
423 | dbg_hid("G25/G27/DFGT: setting range to %u\n", range); |
424 | ||
74479ba8 MM |
425 | value[0] = 0xf8; |
426 | value[1] = 0x81; | |
427 | value[2] = range & 0x00ff; | |
428 | value[3] = (range & 0xff00) >> 8; | |
429 | value[4] = 0x00; | |
430 | value[5] = 0x00; | |
431 | value[6] = 0x00; | |
30bb75d7 | 432 | |
d8814272 | 433 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); |
30bb75d7 MM |
434 | } |
435 | ||
436 | /* Sends commands to set range compatible with Driving Force Pro wheel */ | |
437 | static void hid_lg4ff_set_range_dfp(struct hid_device *hid, __u16 range) | |
438 | { | |
439 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; | |
440 | struct hid_report *report = list_entry(report_list->next, struct hid_report, list); | |
441 | int start_left, start_right, full_range; | |
74479ba8 MM |
442 | __s32 *value = report->field[0]->value; |
443 | ||
30bb75d7 MM |
444 | dbg_hid("Driving Force Pro: setting range to %u\n", range); |
445 | ||
446 | /* Prepare "coarse" limit command */ | |
74479ba8 | 447 | value[0] = 0xf8; |
a80fe5d6 | 448 | value[1] = 0x00; /* Set later */ |
74479ba8 MM |
449 | value[2] = 0x00; |
450 | value[3] = 0x00; | |
451 | value[4] = 0x00; | |
452 | value[5] = 0x00; | |
453 | value[6] = 0x00; | |
30bb75d7 MM |
454 | |
455 | if (range > 200) { | |
456 | report->field[0]->value[1] = 0x03; | |
457 | full_range = 900; | |
458 | } else { | |
459 | report->field[0]->value[1] = 0x02; | |
460 | full_range = 200; | |
461 | } | |
d8814272 | 462 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); |
30bb75d7 MM |
463 | |
464 | /* Prepare "fine" limit command */ | |
74479ba8 MM |
465 | value[0] = 0x81; |
466 | value[1] = 0x0b; | |
467 | value[2] = 0x00; | |
468 | value[3] = 0x00; | |
469 | value[4] = 0x00; | |
470 | value[5] = 0x00; | |
471 | value[6] = 0x00; | |
30bb75d7 MM |
472 | |
473 | if (range == 200 || range == 900) { /* Do not apply any fine limit */ | |
d8814272 | 474 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); |
30bb75d7 MM |
475 | return; |
476 | } | |
477 | ||
478 | /* Construct fine limit command */ | |
479 | start_left = (((full_range - range + 1) * 2047) / full_range); | |
480 | start_right = 0xfff - start_left; | |
481 | ||
74479ba8 MM |
482 | value[2] = start_left >> 4; |
483 | value[3] = start_right >> 4; | |
484 | value[4] = 0xff; | |
485 | value[5] = (start_right & 0xe) << 4 | (start_left & 0xe); | |
486 | value[6] = 0xff; | |
30bb75d7 | 487 | |
d8814272 | 488 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); |
30bb75d7 MM |
489 | } |
490 | ||
e7c23449 | 491 | static int lg4ff_switch_compatibility_mode(struct hid_device *hid, const struct lg4ff_compat_mode_switch *s) |
96440c8a | 492 | { |
e7c23449 MM |
493 | struct usb_device *usbdev = hid_to_usb_dev(hid); |
494 | struct usbhid_device *usbhid = hid->driver_data; | |
495 | u8 i; | |
96440c8a | 496 | |
e7c23449 MM |
497 | for (i = 0; i < s->cmd_count; i++) { |
498 | int xferd, ret; | |
499 | u8 data[7]; | |
96440c8a | 500 | |
e7c23449 MM |
501 | memcpy(data, s->cmd + (7*i), 7); |
502 | ret = usb_interrupt_msg(usbdev, usbhid->urbout->pipe, data, 7, &xferd, USB_CTRL_SET_TIMEOUT); | |
503 | if (ret) | |
504 | return ret; | |
96440c8a | 505 | } |
e7c23449 | 506 | return 0; |
96440c8a | 507 | } |
32c88cbc | 508 | |
b96d23ec MM |
509 | static ssize_t lg4ff_alternate_modes_show(struct device *dev, struct device_attribute *attr, char *buf) |
510 | { | |
511 | struct hid_device *hid = to_hid_device(dev); | |
512 | struct lg4ff_device_entry *entry; | |
513 | struct lg_drv_data *drv_data; | |
514 | ssize_t count = 0; | |
515 | int i; | |
516 | ||
517 | drv_data = hid_get_drvdata(hid); | |
518 | if (!drv_data) { | |
519 | hid_err(hid, "Private driver data not found!\n"); | |
520 | return 0; | |
521 | } | |
522 | ||
523 | entry = drv_data->device_props; | |
524 | if (!entry) { | |
525 | hid_err(hid, "Device properties not found!\n"); | |
526 | return 0; | |
527 | } | |
528 | ||
529 | if (!entry->real_name) { | |
530 | hid_err(hid, "NULL pointer to string\n"); | |
531 | return 0; | |
532 | } | |
533 | ||
534 | for (i = 0; i < LG4FF_MODE_MAX_IDX; i++) { | |
535 | if (entry->alternate_modes & BIT(i)) { | |
536 | /* Print tag and full name */ | |
537 | count += scnprintf(buf + count, PAGE_SIZE - count, "%s: %s", | |
538 | lg4ff_alternate_modes[i].tag, | |
539 | !lg4ff_alternate_modes[i].product_id ? entry->real_name : lg4ff_alternate_modes[i].name); | |
540 | if (count >= PAGE_SIZE - 1) | |
541 | return count; | |
542 | ||
543 | /* Mark the currently active mode with an asterisk */ | |
544 | if (lg4ff_alternate_modes[i].product_id == entry->product_id || | |
545 | (lg4ff_alternate_modes[i].product_id == 0 && entry->product_id == entry->real_product_id)) | |
546 | count += scnprintf(buf + count, PAGE_SIZE - count, " *\n"); | |
547 | else | |
548 | count += scnprintf(buf + count, PAGE_SIZE - count, "\n"); | |
549 | ||
550 | if (count >= PAGE_SIZE - 1) | |
551 | return count; | |
552 | } | |
553 | } | |
554 | ||
555 | return count; | |
556 | } | |
557 | ||
558 | static ssize_t lg4ff_alternate_modes_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) | |
559 | { | |
560 | return -ENOSYS; | |
561 | } | |
562 | static DEVICE_ATTR(alternate_modes, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH, lg4ff_alternate_modes_show, lg4ff_alternate_modes_store); | |
563 | ||
30bb75d7 | 564 | /* Read current range and display it in terminal */ |
2f1cec32 VD |
565 | static ssize_t range_show(struct device *dev, struct device_attribute *attr, |
566 | char *buf) | |
30bb75d7 | 567 | { |
30bb75d7 | 568 | struct hid_device *hid = to_hid_device(dev); |
3b6b17b7 MM |
569 | struct lg4ff_device_entry *entry; |
570 | struct lg_drv_data *drv_data; | |
30bb75d7 MM |
571 | size_t count; |
572 | ||
3b6b17b7 MM |
573 | drv_data = hid_get_drvdata(hid); |
574 | if (!drv_data) { | |
575 | hid_err(hid, "Private driver data not found!\n"); | |
576 | return 0; | |
30bb75d7 | 577 | } |
3b6b17b7 MM |
578 | |
579 | entry = drv_data->device_props; | |
580 | if (!entry) { | |
581 | hid_err(hid, "Device properties not found!\n"); | |
30bb75d7 MM |
582 | return 0; |
583 | } | |
584 | ||
585 | count = scnprintf(buf, PAGE_SIZE, "%u\n", entry->range); | |
586 | return count; | |
587 | } | |
588 | ||
589 | /* Set range to user specified value, call appropriate function | |
590 | * according to the type of the wheel */ | |
2f1cec32 VD |
591 | static ssize_t range_store(struct device *dev, struct device_attribute *attr, |
592 | const char *buf, size_t count) | |
30bb75d7 | 593 | { |
30bb75d7 | 594 | struct hid_device *hid = to_hid_device(dev); |
3b6b17b7 MM |
595 | struct lg4ff_device_entry *entry; |
596 | struct lg_drv_data *drv_data; | |
30bb75d7 MM |
597 | __u16 range = simple_strtoul(buf, NULL, 10); |
598 | ||
3b6b17b7 MM |
599 | drv_data = hid_get_drvdata(hid); |
600 | if (!drv_data) { | |
601 | hid_err(hid, "Private driver data not found!\n"); | |
29ff6657 | 602 | return -EINVAL; |
30bb75d7 | 603 | } |
3b6b17b7 MM |
604 | |
605 | entry = drv_data->device_props; | |
606 | if (!entry) { | |
607 | hid_err(hid, "Device properties not found!\n"); | |
29ff6657 | 608 | return -EINVAL; |
30bb75d7 MM |
609 | } |
610 | ||
611 | if (range == 0) | |
612 | range = entry->max_range; | |
613 | ||
614 | /* Check if the wheel supports range setting | |
615 | * and that the range is within limits for the wheel */ | |
616 | if (entry->set_range != NULL && range >= entry->min_range && range <= entry->max_range) { | |
617 | entry->set_range(hid, range); | |
618 | entry->range = range; | |
619 | } | |
620 | ||
621 | return count; | |
622 | } | |
2f1cec32 | 623 | static DEVICE_ATTR_RW(range); |
30bb75d7 | 624 | |
b96d23ec MM |
625 | static ssize_t lg4ff_real_id_show(struct device *dev, struct device_attribute *attr, char *buf) |
626 | { | |
627 | struct hid_device *hid = to_hid_device(dev); | |
628 | struct lg4ff_device_entry *entry; | |
629 | struct lg_drv_data *drv_data; | |
630 | size_t count; | |
631 | ||
632 | drv_data = hid_get_drvdata(hid); | |
633 | if (!drv_data) { | |
634 | hid_err(hid, "Private driver data not found!\n"); | |
635 | return 0; | |
636 | } | |
637 | ||
638 | entry = drv_data->device_props; | |
639 | if (!entry) { | |
640 | hid_err(hid, "Device properties not found!\n"); | |
641 | return 0; | |
642 | } | |
643 | ||
644 | if (!entry->real_tag || !entry->real_name) { | |
645 | hid_err(hid, "NULL pointer to string\n"); | |
646 | return 0; | |
647 | } | |
648 | ||
649 | count = scnprintf(buf, PAGE_SIZE, "%s: %s\n", entry->real_tag, entry->real_name); | |
650 | return count; | |
651 | } | |
652 | ||
653 | static ssize_t lg4ff_real_id_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) | |
654 | { | |
655 | /* Real ID is a read-only value */ | |
656 | return -EPERM; | |
657 | } | |
658 | static DEVICE_ATTR(real_id, S_IRUGO, lg4ff_real_id_show, lg4ff_real_id_store); | |
659 | ||
22bcefdc SW |
660 | #ifdef CONFIG_LEDS_CLASS |
661 | static void lg4ff_set_leds(struct hid_device *hid, __u8 leds) | |
662 | { | |
663 | struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list; | |
664 | struct hid_report *report = list_entry(report_list->next, struct hid_report, list); | |
74479ba8 MM |
665 | __s32 *value = report->field[0]->value; |
666 | ||
667 | value[0] = 0xf8; | |
668 | value[1] = 0x12; | |
669 | value[2] = leds; | |
670 | value[3] = 0x00; | |
671 | value[4] = 0x00; | |
672 | value[5] = 0x00; | |
673 | value[6] = 0x00; | |
d8814272 | 674 | hid_hw_request(hid, report, HID_REQ_SET_REPORT); |
22bcefdc SW |
675 | } |
676 | ||
677 | static void lg4ff_led_set_brightness(struct led_classdev *led_cdev, | |
678 | enum led_brightness value) | |
679 | { | |
680 | struct device *dev = led_cdev->dev->parent; | |
681 | struct hid_device *hid = container_of(dev, struct hid_device, dev); | |
4629fd16 | 682 | struct lg_drv_data *drv_data = hid_get_drvdata(hid); |
22bcefdc SW |
683 | struct lg4ff_device_entry *entry; |
684 | int i, state = 0; | |
685 | ||
686 | if (!drv_data) { | |
687 | hid_err(hid, "Device data not found."); | |
688 | return; | |
689 | } | |
690 | ||
691 | entry = (struct lg4ff_device_entry *)drv_data->device_props; | |
692 | ||
693 | if (!entry) { | |
694 | hid_err(hid, "Device properties not found."); | |
695 | return; | |
696 | } | |
697 | ||
698 | for (i = 0; i < 5; i++) { | |
699 | if (led_cdev != entry->led[i]) | |
700 | continue; | |
701 | state = (entry->led_state >> i) & 1; | |
702 | if (value == LED_OFF && state) { | |
703 | entry->led_state &= ~(1 << i); | |
704 | lg4ff_set_leds(hid, entry->led_state); | |
705 | } else if (value != LED_OFF && !state) { | |
706 | entry->led_state |= 1 << i; | |
707 | lg4ff_set_leds(hid, entry->led_state); | |
708 | } | |
709 | break; | |
710 | } | |
711 | } | |
712 | ||
713 | static enum led_brightness lg4ff_led_get_brightness(struct led_classdev *led_cdev) | |
714 | { | |
715 | struct device *dev = led_cdev->dev->parent; | |
716 | struct hid_device *hid = container_of(dev, struct hid_device, dev); | |
4629fd16 | 717 | struct lg_drv_data *drv_data = hid_get_drvdata(hid); |
22bcefdc SW |
718 | struct lg4ff_device_entry *entry; |
719 | int i, value = 0; | |
720 | ||
721 | if (!drv_data) { | |
722 | hid_err(hid, "Device data not found."); | |
723 | return LED_OFF; | |
724 | } | |
725 | ||
726 | entry = (struct lg4ff_device_entry *)drv_data->device_props; | |
727 | ||
728 | if (!entry) { | |
729 | hid_err(hid, "Device properties not found."); | |
730 | return LED_OFF; | |
731 | } | |
732 | ||
733 | for (i = 0; i < 5; i++) | |
734 | if (led_cdev == entry->led[i]) { | |
735 | value = (entry->led_state >> i) & 1; | |
736 | break; | |
737 | } | |
738 | ||
739 | return value ? LED_FULL : LED_OFF; | |
740 | } | |
741 | #endif | |
742 | ||
e7c23449 MM |
743 | static u16 lg4ff_identify_multimode_wheel(struct hid_device *hid, const u16 reported_product_id, const u16 bcdDevice) |
744 | { | |
745 | const struct lg4ff_wheel_ident_checklist *checklist; | |
746 | int i, from_idx, to_idx; | |
747 | ||
748 | switch (reported_product_id) { | |
749 | case USB_DEVICE_ID_LOGITECH_WHEEL: | |
750 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
751 | checklist = &lg4ff_main_checklist; | |
752 | from_idx = 0; | |
753 | to_idx = checklist->count - 1; | |
754 | break; | |
755 | case USB_DEVICE_ID_LOGITECH_G25_WHEEL: | |
756 | checklist = &lg4ff_main_checklist; | |
757 | from_idx = 0; | |
758 | to_idx = checklist->count - 2; /* End identity check at G25 */ | |
759 | break; | |
760 | case USB_DEVICE_ID_LOGITECH_G27_WHEEL: | |
761 | checklist = &lg4ff_main_checklist; | |
762 | from_idx = 1; /* Start identity check at G27 */ | |
763 | to_idx = checklist->count - 3; /* End identity check at G27 */ | |
764 | break; | |
765 | case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL: | |
766 | checklist = &lg4ff_main_checklist; | |
767 | from_idx = 0; | |
768 | to_idx = checklist->count - 4; /* End identity check at DFGT */ | |
769 | break; | |
770 | default: | |
771 | return 0; | |
772 | } | |
773 | ||
774 | for (i = from_idx; i <= to_idx; i++) { | |
775 | const u16 mask = checklist->models[i]->mask; | |
776 | const u16 result = checklist->models[i]->result; | |
777 | const u16 real_product_id = checklist->models[i]->real_product_id; | |
778 | ||
779 | if ((bcdDevice & mask) == result) { | |
780 | dbg_hid("Found wheel with real PID %X whose reported PID is %X\n", real_product_id, reported_product_id); | |
781 | return real_product_id; | |
782 | } | |
783 | } | |
784 | ||
785 | /* No match found. This is an unknown wheel model, do not touch it */ | |
786 | dbg_hid("Wheel with bcdDevice %X was not recognized as multimode wheel, leaving in its current mode\n", bcdDevice); | |
787 | return 0; | |
788 | } | |
789 | ||
790 | static int lg4ff_handle_multimode_wheel(struct hid_device *hid, u16 *real_product_id, const u16 bcdDevice) | |
791 | { | |
792 | const u16 reported_product_id = hid->product; | |
793 | int ret; | |
794 | ||
795 | *real_product_id = lg4ff_identify_multimode_wheel(hid, reported_product_id, bcdDevice); | |
796 | /* Probed wheel is not a multimode wheel */ | |
797 | if (!*real_product_id) { | |
798 | *real_product_id = reported_product_id; | |
799 | dbg_hid("Wheel is not a multimode wheel\n"); | |
800 | return LG4FF_MMODE_NOT_MULTIMODE; | |
801 | } | |
802 | ||
803 | /* Switch from "Driving Force" mode to native mode automatically. | |
804 | * Otherwise keep the wheel in its current mode */ | |
805 | if (reported_product_id == USB_DEVICE_ID_LOGITECH_WHEEL && | |
806 | reported_product_id != *real_product_id) { | |
807 | const struct lg4ff_compat_mode_switch *s; | |
808 | ||
809 | switch (*real_product_id) { | |
810 | case USB_DEVICE_ID_LOGITECH_DFP_WHEEL: | |
811 | s = &lg4ff_mode_switch_dfp; | |
812 | break; | |
813 | case USB_DEVICE_ID_LOGITECH_G25_WHEEL: | |
814 | s = &lg4ff_mode_switch_g25; | |
815 | break; | |
816 | case USB_DEVICE_ID_LOGITECH_G27_WHEEL: | |
817 | s = &lg4ff_mode_switch_g27; | |
818 | break; | |
819 | case USB_DEVICE_ID_LOGITECH_DFGT_WHEEL: | |
820 | s = &lg4ff_mode_switch_dfgt; | |
821 | break; | |
822 | default: | |
823 | hid_err(hid, "Invalid product id %X\n", *real_product_id); | |
b96d23ec | 824 | return LG4FF_MMODE_NOT_MULTIMODE; |
e7c23449 MM |
825 | } |
826 | ||
827 | ret = lg4ff_switch_compatibility_mode(hid, s); | |
828 | if (ret) { | |
829 | /* Wheel could not have been switched to native mode, | |
830 | * leave it in "Driving Force" mode and continue */ | |
831 | hid_err(hid, "Unable to switch wheel mode, errno %d\n", ret); | |
b96d23ec | 832 | return LG4FF_MMODE_IS_MULTIMODE; |
e7c23449 MM |
833 | } |
834 | return LG4FF_MMODE_SWITCHED; | |
835 | } | |
836 | ||
b96d23ec | 837 | return LG4FF_MMODE_IS_MULTIMODE; |
e7c23449 MM |
838 | } |
839 | ||
840 | ||
32c88cbc SW |
841 | int lg4ff_init(struct hid_device *hid) |
842 | { | |
843 | struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list); | |
32c88cbc | 844 | struct input_dev *dev = hidinput->input; |
e7c23449 MM |
845 | const struct usb_device_descriptor *udesc = &(hid_to_usb_dev(hid)->descriptor); |
846 | const u16 bcdDevice = le16_to_cpu(udesc->bcdDevice); | |
30bb75d7 | 847 | struct lg4ff_device_entry *entry; |
3b6b17b7 | 848 | struct lg_drv_data *drv_data; |
b96d23ec MM |
849 | int error, i, j; |
850 | int mmode_ret, mmode_idx = -1; | |
e7c23449 | 851 | u16 real_product_id; |
32c88cbc | 852 | |
32c88cbc | 853 | /* Check that the report looks ok */ |
0fb6bd06 | 854 | if (!hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 7)) |
32c88cbc | 855 | return -1; |
30bb75d7 | 856 | |
e7c23449 MM |
857 | /* Check if a multimode wheel has been connected and |
858 | * handle it appropriately */ | |
b96d23ec | 859 | mmode_ret = lg4ff_handle_multimode_wheel(hid, &real_product_id, bcdDevice); |
e7c23449 MM |
860 | |
861 | /* Wheel has been told to switch to native mode. There is no point in going on | |
862 | * with the initialization as the wheel will do a USB reset when it switches mode | |
863 | */ | |
b96d23ec | 864 | if (mmode_ret == LG4FF_MMODE_SWITCHED) |
e7c23449 MM |
865 | return 0; |
866 | ||
7362cd22 MM |
867 | /* Check what wheel has been connected */ |
868 | for (i = 0; i < ARRAY_SIZE(lg4ff_devices); i++) { | |
869 | if (hid->product == lg4ff_devices[i].product_id) { | |
870 | dbg_hid("Found compatible device, product ID %04X\n", lg4ff_devices[i].product_id); | |
871 | break; | |
872 | } | |
873 | } | |
874 | ||
875 | if (i == ARRAY_SIZE(lg4ff_devices)) { | |
876 | hid_err(hid, "Device is not supported by lg4ff driver. If you think it should be, consider reporting a bug to" | |
877 | "LKML, Simon Wood <simon@mungewell.org> or Michal Maly <madcatxster@gmail.com>\n"); | |
878 | return -1; | |
879 | } | |
32c88cbc | 880 | |
b96d23ec MM |
881 | if (mmode_ret == LG4FF_MMODE_IS_MULTIMODE) { |
882 | for (mmode_idx = 0; mmode_idx < ARRAY_SIZE(lg4ff_multimode_wheels); mmode_idx++) { | |
883 | if (real_product_id == lg4ff_multimode_wheels[mmode_idx].product_id) | |
884 | break; | |
885 | } | |
886 | ||
887 | if (mmode_idx == ARRAY_SIZE(lg4ff_multimode_wheels)) { | |
888 | hid_err(hid, "Device product ID %X is not listed as a multimode wheel", real_product_id); | |
889 | return -1; | |
890 | } | |
891 | } | |
892 | ||
7362cd22 MM |
893 | /* Set supported force feedback capabilities */ |
894 | for (j = 0; lg4ff_devices[i].ff_effects[j] >= 0; j++) | |
895 | set_bit(lg4ff_devices[i].ff_effects[j], dev->ffbit); | |
32c88cbc SW |
896 | |
897 | error = input_ff_create_memless(dev, NULL, hid_lg4ff_play); | |
898 | ||
899 | if (error) | |
900 | return error; | |
901 | ||
3b6b17b7 MM |
902 | /* Get private driver data */ |
903 | drv_data = hid_get_drvdata(hid); | |
904 | if (!drv_data) { | |
905 | hid_err(hid, "Cannot add device, private driver data not allocated\n"); | |
906 | return -1; | |
30bb75d7 MM |
907 | } |
908 | ||
3b6b17b7 | 909 | /* Initialize device properties */ |
8383c6bf | 910 | entry = kzalloc(sizeof(struct lg4ff_device_entry), GFP_KERNEL); |
30bb75d7 | 911 | if (!entry) { |
3b6b17b7 | 912 | hid_err(hid, "Cannot add device, insufficient memory to allocate device properties.\n"); |
30bb75d7 MM |
913 | return -ENOMEM; |
914 | } | |
3b6b17b7 MM |
915 | drv_data->device_props = entry; |
916 | ||
2b24a960 | 917 | entry->product_id = lg4ff_devices[i].product_id; |
b96d23ec | 918 | entry->real_product_id = real_product_id; |
30bb75d7 MM |
919 | entry->min_range = lg4ff_devices[i].min_range; |
920 | entry->max_range = lg4ff_devices[i].max_range; | |
921 | entry->set_range = lg4ff_devices[i].set_range; | |
b96d23ec MM |
922 | if (mmode_ret == LG4FF_MMODE_IS_MULTIMODE) { |
923 | BUG_ON(mmode_idx == -1); | |
924 | entry->alternate_modes = lg4ff_multimode_wheels[mmode_idx].alternate_modes; | |
925 | entry->real_tag = lg4ff_multimode_wheels[mmode_idx].real_tag; | |
926 | entry->real_name = lg4ff_multimode_wheels[mmode_idx].real_name; | |
927 | } | |
30bb75d7 | 928 | |
114a55cf SW |
929 | /* Check if autocentering is available and |
930 | * set the centering force to zero by default */ | |
931 | if (test_bit(FF_AUTOCENTER, dev->ffbit)) { | |
e7c23449 MM |
932 | /* Formula Force EX expects different autocentering command */ |
933 | if ((bcdDevice >> 8) == LG4FF_FFEX_REV_MAJ && | |
934 | (bcdDevice & 0xff) == LG4FF_FFEX_REV_MIN) | |
114a55cf SW |
935 | dev->ff->set_autocenter = hid_lg4ff_set_autocenter_ffex; |
936 | else | |
937 | dev->ff->set_autocenter = hid_lg4ff_set_autocenter_default; | |
938 | ||
939 | dev->ff->set_autocenter(dev, 0); | |
940 | } | |
941 | ||
30bb75d7 MM |
942 | /* Create sysfs interface */ |
943 | error = device_create_file(&hid->dev, &dev_attr_range); | |
944 | if (error) | |
945 | return error; | |
b96d23ec MM |
946 | if (mmode_ret == LG4FF_MMODE_IS_MULTIMODE) { |
947 | error = device_create_file(&hid->dev, &dev_attr_real_id); | |
948 | if (error) | |
949 | return error; | |
950 | error = device_create_file(&hid->dev, &dev_attr_alternate_modes); | |
951 | if (error) | |
952 | return error; | |
953 | } | |
30bb75d7 MM |
954 | dbg_hid("sysfs interface created\n"); |
955 | ||
956 | /* Set the maximum range to start with */ | |
957 | entry->range = entry->max_range; | |
958 | if (entry->set_range != NULL) | |
959 | entry->set_range(hid, entry->range); | |
960 | ||
22bcefdc SW |
961 | #ifdef CONFIG_LEDS_CLASS |
962 | /* register led subsystem - G27 only */ | |
963 | entry->led_state = 0; | |
964 | for (j = 0; j < 5; j++) | |
965 | entry->led[j] = NULL; | |
966 | ||
967 | if (lg4ff_devices[i].product_id == USB_DEVICE_ID_LOGITECH_G27_WHEEL) { | |
968 | struct led_classdev *led; | |
969 | size_t name_sz; | |
970 | char *name; | |
971 | ||
972 | lg4ff_set_leds(hid, 0); | |
973 | ||
974 | name_sz = strlen(dev_name(&hid->dev)) + 8; | |
975 | ||
976 | for (j = 0; j < 5; j++) { | |
977 | led = kzalloc(sizeof(struct led_classdev)+name_sz, GFP_KERNEL); | |
978 | if (!led) { | |
979 | hid_err(hid, "can't allocate memory for LED %d\n", j); | |
980 | goto err; | |
981 | } | |
982 | ||
983 | name = (void *)(&led[1]); | |
984 | snprintf(name, name_sz, "%s::RPM%d", dev_name(&hid->dev), j+1); | |
985 | led->name = name; | |
986 | led->brightness = 0; | |
987 | led->max_brightness = 1; | |
988 | led->brightness_get = lg4ff_led_get_brightness; | |
989 | led->brightness_set = lg4ff_led_set_brightness; | |
990 | ||
991 | entry->led[j] = led; | |
992 | error = led_classdev_register(&hid->dev, led); | |
993 | ||
994 | if (error) { | |
995 | hid_err(hid, "failed to register LED %d. Aborting.\n", j); | |
996 | err: | |
997 | /* Deregister LEDs (if any) */ | |
998 | for (j = 0; j < 5; j++) { | |
999 | led = entry->led[j]; | |
1000 | entry->led[j] = NULL; | |
1001 | if (!led) | |
1002 | continue; | |
1003 | led_classdev_unregister(led); | |
1004 | kfree(led); | |
1005 | } | |
1006 | goto out; /* Let the driver continue without LEDs */ | |
1007 | } | |
1008 | } | |
1009 | } | |
22bcefdc | 1010 | out: |
c6e6dc87 | 1011 | #endif |
64013800 | 1012 | hid_info(hid, "Force feedback support for Logitech Gaming Wheels\n"); |
32c88cbc SW |
1013 | return 0; |
1014 | } | |
1015 | ||
30bb75d7 MM |
1016 | int lg4ff_deinit(struct hid_device *hid) |
1017 | { | |
30bb75d7 | 1018 | struct lg4ff_device_entry *entry; |
3b6b17b7 MM |
1019 | struct lg_drv_data *drv_data; |
1020 | ||
3b6b17b7 MM |
1021 | drv_data = hid_get_drvdata(hid); |
1022 | if (!drv_data) { | |
1023 | hid_err(hid, "Error while deinitializing device, no private driver data.\n"); | |
1024 | return -1; | |
30bb75d7 | 1025 | } |
3b6b17b7 | 1026 | entry = drv_data->device_props; |
e7c23449 MM |
1027 | if (!entry) |
1028 | goto out; /* Nothing more to do */ | |
1029 | ||
1030 | device_remove_file(&hid->dev, &dev_attr_range); | |
22bcefdc | 1031 | |
b96d23ec MM |
1032 | /* Multimode devices will have at least the "MODE_NATIVE" bit set */ |
1033 | if (entry->alternate_modes) { | |
1034 | device_remove_file(&hid->dev, &dev_attr_real_id); | |
1035 | device_remove_file(&hid->dev, &dev_attr_alternate_modes); | |
1036 | } | |
1037 | ||
22bcefdc SW |
1038 | #ifdef CONFIG_LEDS_CLASS |
1039 | { | |
1040 | int j; | |
1041 | struct led_classdev *led; | |
1042 | ||
1043 | /* Deregister LEDs (if any) */ | |
1044 | for (j = 0; j < 5; j++) { | |
1045 | ||
1046 | led = entry->led[j]; | |
1047 | entry->led[j] = NULL; | |
1048 | if (!led) | |
1049 | continue; | |
1050 | led_classdev_unregister(led); | |
1051 | kfree(led); | |
1052 | } | |
1053 | } | |
1054 | #endif | |
1055 | ||
3b6b17b7 MM |
1056 | /* Deallocate memory */ |
1057 | kfree(entry); | |
30bb75d7 | 1058 | |
e7c23449 | 1059 | out: |
30bb75d7 MM |
1060 | dbg_hid("Device successfully unregistered\n"); |
1061 | return 0; | |
1062 | } |